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79e53945 JB |
1 | /* |
2 | * Copyright © 2006-2007 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
21 | * DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eric Anholt <eric@anholt.net> | |
25 | */ | |
26 | ||
618563e3 | 27 | #include <linux/dmi.h> |
c1c7af60 JB |
28 | #include <linux/module.h> |
29 | #include <linux/input.h> | |
79e53945 | 30 | #include <linux/i2c.h> |
7662c8bd | 31 | #include <linux/kernel.h> |
5a0e3ad6 | 32 | #include <linux/slab.h> |
9cce37f4 | 33 | #include <linux/vgaarb.h> |
e0dac65e | 34 | #include <drm/drm_edid.h> |
760285e7 | 35 | #include <drm/drmP.h> |
79e53945 | 36 | #include "intel_drv.h" |
760285e7 | 37 | #include <drm/i915_drm.h> |
79e53945 | 38 | #include "i915_drv.h" |
e5510fac | 39 | #include "i915_trace.h" |
319c1d42 | 40 | #include <drm/drm_atomic.h> |
c196e1d6 | 41 | #include <drm/drm_atomic_helper.h> |
760285e7 DH |
42 | #include <drm/drm_dp_helper.h> |
43 | #include <drm/drm_crtc_helper.h> | |
465c120c MR |
44 | #include <drm/drm_plane_helper.h> |
45 | #include <drm/drm_rect.h> | |
c0f372b3 | 46 | #include <linux/dma_remapping.h> |
fd8e058a AG |
47 | #include <linux/reservation.h> |
48 | #include <linux/dma-buf.h> | |
79e53945 | 49 | |
465c120c | 50 | /* Primary plane formats for gen <= 3 */ |
568db4f2 | 51 | static const uint32_t i8xx_primary_formats[] = { |
67fe7dc5 DL |
52 | DRM_FORMAT_C8, |
53 | DRM_FORMAT_RGB565, | |
465c120c | 54 | DRM_FORMAT_XRGB1555, |
67fe7dc5 | 55 | DRM_FORMAT_XRGB8888, |
465c120c MR |
56 | }; |
57 | ||
58 | /* Primary plane formats for gen >= 4 */ | |
568db4f2 | 59 | static const uint32_t i965_primary_formats[] = { |
6c0fd451 DL |
60 | DRM_FORMAT_C8, |
61 | DRM_FORMAT_RGB565, | |
62 | DRM_FORMAT_XRGB8888, | |
63 | DRM_FORMAT_XBGR8888, | |
64 | DRM_FORMAT_XRGB2101010, | |
65 | DRM_FORMAT_XBGR2101010, | |
66 | }; | |
67 | ||
68 | static const uint32_t skl_primary_formats[] = { | |
67fe7dc5 DL |
69 | DRM_FORMAT_C8, |
70 | DRM_FORMAT_RGB565, | |
71 | DRM_FORMAT_XRGB8888, | |
465c120c | 72 | DRM_FORMAT_XBGR8888, |
67fe7dc5 | 73 | DRM_FORMAT_ARGB8888, |
465c120c MR |
74 | DRM_FORMAT_ABGR8888, |
75 | DRM_FORMAT_XRGB2101010, | |
465c120c | 76 | DRM_FORMAT_XBGR2101010, |
ea916ea0 KM |
77 | DRM_FORMAT_YUYV, |
78 | DRM_FORMAT_YVYU, | |
79 | DRM_FORMAT_UYVY, | |
80 | DRM_FORMAT_VYUY, | |
465c120c MR |
81 | }; |
82 | ||
3d7d6510 MR |
83 | /* Cursor formats */ |
84 | static const uint32_t intel_cursor_formats[] = { | |
85 | DRM_FORMAT_ARGB8888, | |
86 | }; | |
87 | ||
f1f644dc | 88 | static void i9xx_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 89 | struct intel_crtc_state *pipe_config); |
18442d08 | 90 | static void ironlake_pch_clock_get(struct intel_crtc *crtc, |
5cec258b | 91 | struct intel_crtc_state *pipe_config); |
f1f644dc | 92 | |
eb1bfe80 JB |
93 | static int intel_framebuffer_init(struct drm_device *dev, |
94 | struct intel_framebuffer *ifb, | |
95 | struct drm_mode_fb_cmd2 *mode_cmd, | |
96 | struct drm_i915_gem_object *obj); | |
5b18e57c DV |
97 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc); |
98 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc); | |
29407aab | 99 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, |
f769cd24 VK |
100 | struct intel_link_m_n *m_n, |
101 | struct intel_link_m_n *m2_n2); | |
29407aab | 102 | static void ironlake_set_pipeconf(struct drm_crtc *crtc); |
229fca97 DV |
103 | static void haswell_set_pipeconf(struct drm_crtc *crtc); |
104 | static void intel_set_pipe_csc(struct drm_crtc *crtc); | |
d288f65f | 105 | static void vlv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 106 | const struct intel_crtc_state *pipe_config); |
d288f65f | 107 | static void chv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 108 | const struct intel_crtc_state *pipe_config); |
613d2b27 ML |
109 | static void intel_begin_crtc_commit(struct drm_crtc *, struct drm_crtc_state *); |
110 | static void intel_finish_crtc_commit(struct drm_crtc *, struct drm_crtc_state *); | |
549e2bfb CK |
111 | static void skl_init_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc, |
112 | struct intel_crtc_state *crtc_state); | |
5ab7b0b7 ID |
113 | static int i9xx_get_refclk(const struct intel_crtc_state *crtc_state, |
114 | int num_connectors); | |
bfd16b2a ML |
115 | static void skylake_pfit_enable(struct intel_crtc *crtc); |
116 | static void ironlake_pfit_disable(struct intel_crtc *crtc, bool force); | |
117 | static void ironlake_pfit_enable(struct intel_crtc *crtc); | |
043e9bda | 118 | static void intel_modeset_setup_hw_state(struct drm_device *dev); |
200757f5 | 119 | static void intel_pre_disable_primary(struct drm_crtc *crtc); |
e7457a9a | 120 | |
79e53945 | 121 | typedef struct { |
0206e353 | 122 | int min, max; |
79e53945 JB |
123 | } intel_range_t; |
124 | ||
125 | typedef struct { | |
0206e353 AJ |
126 | int dot_limit; |
127 | int p2_slow, p2_fast; | |
79e53945 JB |
128 | } intel_p2_t; |
129 | ||
d4906093 ML |
130 | typedef struct intel_limit intel_limit_t; |
131 | struct intel_limit { | |
0206e353 AJ |
132 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
133 | intel_p2_t p2; | |
d4906093 | 134 | }; |
79e53945 | 135 | |
bfa7df01 VS |
136 | /* returns HPLL frequency in kHz */ |
137 | static int valleyview_get_vco(struct drm_i915_private *dev_priv) | |
138 | { | |
139 | int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 }; | |
140 | ||
141 | /* Obtain SKU information */ | |
142 | mutex_lock(&dev_priv->sb_lock); | |
143 | hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) & | |
144 | CCK_FUSE_HPLL_FREQ_MASK; | |
145 | mutex_unlock(&dev_priv->sb_lock); | |
146 | ||
147 | return vco_freq[hpll_freq] * 1000; | |
148 | } | |
149 | ||
150 | static int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv, | |
151 | const char *name, u32 reg) | |
152 | { | |
153 | u32 val; | |
154 | int divider; | |
155 | ||
156 | if (dev_priv->hpll_freq == 0) | |
157 | dev_priv->hpll_freq = valleyview_get_vco(dev_priv); | |
158 | ||
159 | mutex_lock(&dev_priv->sb_lock); | |
160 | val = vlv_cck_read(dev_priv, reg); | |
161 | mutex_unlock(&dev_priv->sb_lock); | |
162 | ||
163 | divider = val & CCK_FREQUENCY_VALUES; | |
164 | ||
165 | WARN((val & CCK_FREQUENCY_STATUS) != | |
166 | (divider << CCK_FREQUENCY_STATUS_SHIFT), | |
167 | "%s change in progress\n", name); | |
168 | ||
169 | return DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, divider + 1); | |
170 | } | |
171 | ||
d2acd215 DV |
172 | int |
173 | intel_pch_rawclk(struct drm_device *dev) | |
174 | { | |
175 | struct drm_i915_private *dev_priv = dev->dev_private; | |
176 | ||
177 | WARN_ON(!HAS_PCH_SPLIT(dev)); | |
178 | ||
179 | return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK; | |
180 | } | |
181 | ||
79e50a4f JN |
182 | /* hrawclock is 1/4 the FSB frequency */ |
183 | int intel_hrawclk(struct drm_device *dev) | |
184 | { | |
185 | struct drm_i915_private *dev_priv = dev->dev_private; | |
186 | uint32_t clkcfg; | |
187 | ||
188 | /* There is no CLKCFG reg in Valleyview. VLV hrawclk is 200 MHz */ | |
666a4537 | 189 | if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) |
79e50a4f JN |
190 | return 200; |
191 | ||
192 | clkcfg = I915_READ(CLKCFG); | |
193 | switch (clkcfg & CLKCFG_FSB_MASK) { | |
194 | case CLKCFG_FSB_400: | |
195 | return 100; | |
196 | case CLKCFG_FSB_533: | |
197 | return 133; | |
198 | case CLKCFG_FSB_667: | |
199 | return 166; | |
200 | case CLKCFG_FSB_800: | |
201 | return 200; | |
202 | case CLKCFG_FSB_1067: | |
203 | return 266; | |
204 | case CLKCFG_FSB_1333: | |
205 | return 333; | |
206 | /* these two are just a guess; one of them might be right */ | |
207 | case CLKCFG_FSB_1600: | |
208 | case CLKCFG_FSB_1600_ALT: | |
209 | return 400; | |
210 | default: | |
211 | return 133; | |
212 | } | |
213 | } | |
214 | ||
bfa7df01 VS |
215 | static void intel_update_czclk(struct drm_i915_private *dev_priv) |
216 | { | |
666a4537 | 217 | if (!(IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))) |
bfa7df01 VS |
218 | return; |
219 | ||
220 | dev_priv->czclk_freq = vlv_get_cck_clock_hpll(dev_priv, "czclk", | |
221 | CCK_CZ_CLOCK_CONTROL); | |
222 | ||
223 | DRM_DEBUG_DRIVER("CZ clock rate: %d kHz\n", dev_priv->czclk_freq); | |
224 | } | |
225 | ||
021357ac CW |
226 | static inline u32 /* units of 100MHz */ |
227 | intel_fdi_link_freq(struct drm_device *dev) | |
228 | { | |
8b99e68c CW |
229 | if (IS_GEN5(dev)) { |
230 | struct drm_i915_private *dev_priv = dev->dev_private; | |
231 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
232 | } else | |
233 | return 27; | |
021357ac CW |
234 | } |
235 | ||
5d536e28 | 236 | static const intel_limit_t intel_limits_i8xx_dac = { |
0206e353 | 237 | .dot = { .min = 25000, .max = 350000 }, |
9c333719 | 238 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 239 | .n = { .min = 2, .max = 16 }, |
0206e353 AJ |
240 | .m = { .min = 96, .max = 140 }, |
241 | .m1 = { .min = 18, .max = 26 }, | |
242 | .m2 = { .min = 6, .max = 16 }, | |
243 | .p = { .min = 4, .max = 128 }, | |
244 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
245 | .p2 = { .dot_limit = 165000, |
246 | .p2_slow = 4, .p2_fast = 2 }, | |
e4b36699 KP |
247 | }; |
248 | ||
5d536e28 DV |
249 | static const intel_limit_t intel_limits_i8xx_dvo = { |
250 | .dot = { .min = 25000, .max = 350000 }, | |
9c333719 | 251 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 252 | .n = { .min = 2, .max = 16 }, |
5d536e28 DV |
253 | .m = { .min = 96, .max = 140 }, |
254 | .m1 = { .min = 18, .max = 26 }, | |
255 | .m2 = { .min = 6, .max = 16 }, | |
256 | .p = { .min = 4, .max = 128 }, | |
257 | .p1 = { .min = 2, .max = 33 }, | |
258 | .p2 = { .dot_limit = 165000, | |
259 | .p2_slow = 4, .p2_fast = 4 }, | |
260 | }; | |
261 | ||
e4b36699 | 262 | static const intel_limit_t intel_limits_i8xx_lvds = { |
0206e353 | 263 | .dot = { .min = 25000, .max = 350000 }, |
9c333719 | 264 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 265 | .n = { .min = 2, .max = 16 }, |
0206e353 AJ |
266 | .m = { .min = 96, .max = 140 }, |
267 | .m1 = { .min = 18, .max = 26 }, | |
268 | .m2 = { .min = 6, .max = 16 }, | |
269 | .p = { .min = 4, .max = 128 }, | |
270 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
271 | .p2 = { .dot_limit = 165000, |
272 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 | 273 | }; |
273e27ca | 274 | |
e4b36699 | 275 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
276 | .dot = { .min = 20000, .max = 400000 }, |
277 | .vco = { .min = 1400000, .max = 2800000 }, | |
278 | .n = { .min = 1, .max = 6 }, | |
279 | .m = { .min = 70, .max = 120 }, | |
4f7dfb67 PJ |
280 | .m1 = { .min = 8, .max = 18 }, |
281 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
282 | .p = { .min = 5, .max = 80 }, |
283 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
284 | .p2 = { .dot_limit = 200000, |
285 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
286 | }; |
287 | ||
288 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
289 | .dot = { .min = 20000, .max = 400000 }, |
290 | .vco = { .min = 1400000, .max = 2800000 }, | |
291 | .n = { .min = 1, .max = 6 }, | |
292 | .m = { .min = 70, .max = 120 }, | |
53a7d2d1 PJ |
293 | .m1 = { .min = 8, .max = 18 }, |
294 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
295 | .p = { .min = 7, .max = 98 }, |
296 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
297 | .p2 = { .dot_limit = 112000, |
298 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 KP |
299 | }; |
300 | ||
273e27ca | 301 | |
e4b36699 | 302 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
303 | .dot = { .min = 25000, .max = 270000 }, |
304 | .vco = { .min = 1750000, .max = 3500000}, | |
305 | .n = { .min = 1, .max = 4 }, | |
306 | .m = { .min = 104, .max = 138 }, | |
307 | .m1 = { .min = 17, .max = 23 }, | |
308 | .m2 = { .min = 5, .max = 11 }, | |
309 | .p = { .min = 10, .max = 30 }, | |
310 | .p1 = { .min = 1, .max = 3}, | |
311 | .p2 = { .dot_limit = 270000, | |
312 | .p2_slow = 10, | |
313 | .p2_fast = 10 | |
044c7c41 | 314 | }, |
e4b36699 KP |
315 | }; |
316 | ||
317 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
318 | .dot = { .min = 22000, .max = 400000 }, |
319 | .vco = { .min = 1750000, .max = 3500000}, | |
320 | .n = { .min = 1, .max = 4 }, | |
321 | .m = { .min = 104, .max = 138 }, | |
322 | .m1 = { .min = 16, .max = 23 }, | |
323 | .m2 = { .min = 5, .max = 11 }, | |
324 | .p = { .min = 5, .max = 80 }, | |
325 | .p1 = { .min = 1, .max = 8}, | |
326 | .p2 = { .dot_limit = 165000, | |
327 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
328 | }; |
329 | ||
330 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
331 | .dot = { .min = 20000, .max = 115000 }, |
332 | .vco = { .min = 1750000, .max = 3500000 }, | |
333 | .n = { .min = 1, .max = 3 }, | |
334 | .m = { .min = 104, .max = 138 }, | |
335 | .m1 = { .min = 17, .max = 23 }, | |
336 | .m2 = { .min = 5, .max = 11 }, | |
337 | .p = { .min = 28, .max = 112 }, | |
338 | .p1 = { .min = 2, .max = 8 }, | |
339 | .p2 = { .dot_limit = 0, | |
340 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 341 | }, |
e4b36699 KP |
342 | }; |
343 | ||
344 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
345 | .dot = { .min = 80000, .max = 224000 }, |
346 | .vco = { .min = 1750000, .max = 3500000 }, | |
347 | .n = { .min = 1, .max = 3 }, | |
348 | .m = { .min = 104, .max = 138 }, | |
349 | .m1 = { .min = 17, .max = 23 }, | |
350 | .m2 = { .min = 5, .max = 11 }, | |
351 | .p = { .min = 14, .max = 42 }, | |
352 | .p1 = { .min = 2, .max = 6 }, | |
353 | .p2 = { .dot_limit = 0, | |
354 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 355 | }, |
e4b36699 KP |
356 | }; |
357 | ||
f2b115e6 | 358 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
359 | .dot = { .min = 20000, .max = 400000}, |
360 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 361 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
362 | .n = { .min = 3, .max = 6 }, |
363 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 364 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
365 | .m1 = { .min = 0, .max = 0 }, |
366 | .m2 = { .min = 0, .max = 254 }, | |
367 | .p = { .min = 5, .max = 80 }, | |
368 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
369 | .p2 = { .dot_limit = 200000, |
370 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
371 | }; |
372 | ||
f2b115e6 | 373 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
374 | .dot = { .min = 20000, .max = 400000 }, |
375 | .vco = { .min = 1700000, .max = 3500000 }, | |
376 | .n = { .min = 3, .max = 6 }, | |
377 | .m = { .min = 2, .max = 256 }, | |
378 | .m1 = { .min = 0, .max = 0 }, | |
379 | .m2 = { .min = 0, .max = 254 }, | |
380 | .p = { .min = 7, .max = 112 }, | |
381 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
382 | .p2 = { .dot_limit = 112000, |
383 | .p2_slow = 14, .p2_fast = 14 }, | |
e4b36699 KP |
384 | }; |
385 | ||
273e27ca EA |
386 | /* Ironlake / Sandybridge |
387 | * | |
388 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
389 | * the range value for them is (actual_value - 2). | |
390 | */ | |
b91ad0ec | 391 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
392 | .dot = { .min = 25000, .max = 350000 }, |
393 | .vco = { .min = 1760000, .max = 3510000 }, | |
394 | .n = { .min = 1, .max = 5 }, | |
395 | .m = { .min = 79, .max = 127 }, | |
396 | .m1 = { .min = 12, .max = 22 }, | |
397 | .m2 = { .min = 5, .max = 9 }, | |
398 | .p = { .min = 5, .max = 80 }, | |
399 | .p1 = { .min = 1, .max = 8 }, | |
400 | .p2 = { .dot_limit = 225000, | |
401 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
402 | }; |
403 | ||
b91ad0ec | 404 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
405 | .dot = { .min = 25000, .max = 350000 }, |
406 | .vco = { .min = 1760000, .max = 3510000 }, | |
407 | .n = { .min = 1, .max = 3 }, | |
408 | .m = { .min = 79, .max = 118 }, | |
409 | .m1 = { .min = 12, .max = 22 }, | |
410 | .m2 = { .min = 5, .max = 9 }, | |
411 | .p = { .min = 28, .max = 112 }, | |
412 | .p1 = { .min = 2, .max = 8 }, | |
413 | .p2 = { .dot_limit = 225000, | |
414 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
415 | }; |
416 | ||
417 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
418 | .dot = { .min = 25000, .max = 350000 }, |
419 | .vco = { .min = 1760000, .max = 3510000 }, | |
420 | .n = { .min = 1, .max = 3 }, | |
421 | .m = { .min = 79, .max = 127 }, | |
422 | .m1 = { .min = 12, .max = 22 }, | |
423 | .m2 = { .min = 5, .max = 9 }, | |
424 | .p = { .min = 14, .max = 56 }, | |
425 | .p1 = { .min = 2, .max = 8 }, | |
426 | .p2 = { .dot_limit = 225000, | |
427 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
428 | }; |
429 | ||
273e27ca | 430 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 431 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
432 | .dot = { .min = 25000, .max = 350000 }, |
433 | .vco = { .min = 1760000, .max = 3510000 }, | |
434 | .n = { .min = 1, .max = 2 }, | |
435 | .m = { .min = 79, .max = 126 }, | |
436 | .m1 = { .min = 12, .max = 22 }, | |
437 | .m2 = { .min = 5, .max = 9 }, | |
438 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 439 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
440 | .p2 = { .dot_limit = 225000, |
441 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
442 | }; |
443 | ||
444 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
445 | .dot = { .min = 25000, .max = 350000 }, |
446 | .vco = { .min = 1760000, .max = 3510000 }, | |
447 | .n = { .min = 1, .max = 3 }, | |
448 | .m = { .min = 79, .max = 126 }, | |
449 | .m1 = { .min = 12, .max = 22 }, | |
450 | .m2 = { .min = 5, .max = 9 }, | |
451 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 452 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
453 | .p2 = { .dot_limit = 225000, |
454 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
455 | }; |
456 | ||
dc730512 | 457 | static const intel_limit_t intel_limits_vlv = { |
f01b7962 VS |
458 | /* |
459 | * These are the data rate limits (measured in fast clocks) | |
460 | * since those are the strictest limits we have. The fast | |
461 | * clock and actual rate limits are more relaxed, so checking | |
462 | * them would make no difference. | |
463 | */ | |
464 | .dot = { .min = 25000 * 5, .max = 270000 * 5 }, | |
75e53986 | 465 | .vco = { .min = 4000000, .max = 6000000 }, |
a0c4da24 | 466 | .n = { .min = 1, .max = 7 }, |
a0c4da24 JB |
467 | .m1 = { .min = 2, .max = 3 }, |
468 | .m2 = { .min = 11, .max = 156 }, | |
b99ab663 | 469 | .p1 = { .min = 2, .max = 3 }, |
5fdc9c49 | 470 | .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */ |
a0c4da24 JB |
471 | }; |
472 | ||
ef9348c8 CML |
473 | static const intel_limit_t intel_limits_chv = { |
474 | /* | |
475 | * These are the data rate limits (measured in fast clocks) | |
476 | * since those are the strictest limits we have. The fast | |
477 | * clock and actual rate limits are more relaxed, so checking | |
478 | * them would make no difference. | |
479 | */ | |
480 | .dot = { .min = 25000 * 5, .max = 540000 * 5}, | |
17fe1021 | 481 | .vco = { .min = 4800000, .max = 6480000 }, |
ef9348c8 CML |
482 | .n = { .min = 1, .max = 1 }, |
483 | .m1 = { .min = 2, .max = 2 }, | |
484 | .m2 = { .min = 24 << 22, .max = 175 << 22 }, | |
485 | .p1 = { .min = 2, .max = 4 }, | |
486 | .p2 = { .p2_slow = 1, .p2_fast = 14 }, | |
487 | }; | |
488 | ||
5ab7b0b7 ID |
489 | static const intel_limit_t intel_limits_bxt = { |
490 | /* FIXME: find real dot limits */ | |
491 | .dot = { .min = 0, .max = INT_MAX }, | |
e6292556 | 492 | .vco = { .min = 4800000, .max = 6700000 }, |
5ab7b0b7 ID |
493 | .n = { .min = 1, .max = 1 }, |
494 | .m1 = { .min = 2, .max = 2 }, | |
495 | /* FIXME: find real m2 limits */ | |
496 | .m2 = { .min = 2 << 22, .max = 255 << 22 }, | |
497 | .p1 = { .min = 2, .max = 4 }, | |
498 | .p2 = { .p2_slow = 1, .p2_fast = 20 }, | |
499 | }; | |
500 | ||
cdba954e ACO |
501 | static bool |
502 | needs_modeset(struct drm_crtc_state *state) | |
503 | { | |
fc596660 | 504 | return drm_atomic_crtc_needs_modeset(state); |
cdba954e ACO |
505 | } |
506 | ||
e0638cdf PZ |
507 | /** |
508 | * Returns whether any output on the specified pipe is of the specified type | |
509 | */ | |
4093561b | 510 | bool intel_pipe_has_type(struct intel_crtc *crtc, enum intel_output_type type) |
e0638cdf | 511 | { |
409ee761 | 512 | struct drm_device *dev = crtc->base.dev; |
e0638cdf PZ |
513 | struct intel_encoder *encoder; |
514 | ||
409ee761 | 515 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
e0638cdf PZ |
516 | if (encoder->type == type) |
517 | return true; | |
518 | ||
519 | return false; | |
520 | } | |
521 | ||
d0737e1d ACO |
522 | /** |
523 | * Returns whether any output on the specified pipe will have the specified | |
524 | * type after a staged modeset is complete, i.e., the same as | |
525 | * intel_pipe_has_type() but looking at encoder->new_crtc instead of | |
526 | * encoder->crtc. | |
527 | */ | |
a93e255f ACO |
528 | static bool intel_pipe_will_have_type(const struct intel_crtc_state *crtc_state, |
529 | int type) | |
d0737e1d | 530 | { |
a93e255f | 531 | struct drm_atomic_state *state = crtc_state->base.state; |
da3ced29 | 532 | struct drm_connector *connector; |
a93e255f | 533 | struct drm_connector_state *connector_state; |
d0737e1d | 534 | struct intel_encoder *encoder; |
a93e255f ACO |
535 | int i, num_connectors = 0; |
536 | ||
da3ced29 | 537 | for_each_connector_in_state(state, connector, connector_state, i) { |
a93e255f ACO |
538 | if (connector_state->crtc != crtc_state->base.crtc) |
539 | continue; | |
540 | ||
541 | num_connectors++; | |
d0737e1d | 542 | |
a93e255f ACO |
543 | encoder = to_intel_encoder(connector_state->best_encoder); |
544 | if (encoder->type == type) | |
d0737e1d | 545 | return true; |
a93e255f ACO |
546 | } |
547 | ||
548 | WARN_ON(num_connectors == 0); | |
d0737e1d ACO |
549 | |
550 | return false; | |
551 | } | |
552 | ||
a93e255f ACO |
553 | static const intel_limit_t * |
554 | intel_ironlake_limit(struct intel_crtc_state *crtc_state, int refclk) | |
2c07245f | 555 | { |
a93e255f | 556 | struct drm_device *dev = crtc_state->base.crtc->dev; |
2c07245f | 557 | const intel_limit_t *limit; |
b91ad0ec | 558 | |
a93e255f | 559 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
1974cad0 | 560 | if (intel_is_dual_link_lvds(dev)) { |
1b894b59 | 561 | if (refclk == 100000) |
b91ad0ec ZW |
562 | limit = &intel_limits_ironlake_dual_lvds_100m; |
563 | else | |
564 | limit = &intel_limits_ironlake_dual_lvds; | |
565 | } else { | |
1b894b59 | 566 | if (refclk == 100000) |
b91ad0ec ZW |
567 | limit = &intel_limits_ironlake_single_lvds_100m; |
568 | else | |
569 | limit = &intel_limits_ironlake_single_lvds; | |
570 | } | |
c6bb3538 | 571 | } else |
b91ad0ec | 572 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
573 | |
574 | return limit; | |
575 | } | |
576 | ||
a93e255f ACO |
577 | static const intel_limit_t * |
578 | intel_g4x_limit(struct intel_crtc_state *crtc_state) | |
044c7c41 | 579 | { |
a93e255f | 580 | struct drm_device *dev = crtc_state->base.crtc->dev; |
044c7c41 ML |
581 | const intel_limit_t *limit; |
582 | ||
a93e255f | 583 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
1974cad0 | 584 | if (intel_is_dual_link_lvds(dev)) |
e4b36699 | 585 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 | 586 | else |
e4b36699 | 587 | limit = &intel_limits_g4x_single_channel_lvds; |
a93e255f ACO |
588 | } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_HDMI) || |
589 | intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 590 | limit = &intel_limits_g4x_hdmi; |
a93e255f | 591 | } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 592 | limit = &intel_limits_g4x_sdvo; |
044c7c41 | 593 | } else /* The option is for other outputs */ |
e4b36699 | 594 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
595 | |
596 | return limit; | |
597 | } | |
598 | ||
a93e255f ACO |
599 | static const intel_limit_t * |
600 | intel_limit(struct intel_crtc_state *crtc_state, int refclk) | |
79e53945 | 601 | { |
a93e255f | 602 | struct drm_device *dev = crtc_state->base.crtc->dev; |
79e53945 JB |
603 | const intel_limit_t *limit; |
604 | ||
5ab7b0b7 ID |
605 | if (IS_BROXTON(dev)) |
606 | limit = &intel_limits_bxt; | |
607 | else if (HAS_PCH_SPLIT(dev)) | |
a93e255f | 608 | limit = intel_ironlake_limit(crtc_state, refclk); |
2c07245f | 609 | else if (IS_G4X(dev)) { |
a93e255f | 610 | limit = intel_g4x_limit(crtc_state); |
f2b115e6 | 611 | } else if (IS_PINEVIEW(dev)) { |
a93e255f | 612 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 613 | limit = &intel_limits_pineview_lvds; |
2177832f | 614 | else |
f2b115e6 | 615 | limit = &intel_limits_pineview_sdvo; |
ef9348c8 CML |
616 | } else if (IS_CHERRYVIEW(dev)) { |
617 | limit = &intel_limits_chv; | |
a0c4da24 | 618 | } else if (IS_VALLEYVIEW(dev)) { |
dc730512 | 619 | limit = &intel_limits_vlv; |
a6c45cf0 | 620 | } else if (!IS_GEN2(dev)) { |
a93e255f | 621 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) |
a6c45cf0 CW |
622 | limit = &intel_limits_i9xx_lvds; |
623 | else | |
624 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 | 625 | } else { |
a93e255f | 626 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) |
e4b36699 | 627 | limit = &intel_limits_i8xx_lvds; |
a93e255f | 628 | else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_DVO)) |
e4b36699 | 629 | limit = &intel_limits_i8xx_dvo; |
5d536e28 DV |
630 | else |
631 | limit = &intel_limits_i8xx_dac; | |
79e53945 JB |
632 | } |
633 | return limit; | |
634 | } | |
635 | ||
dccbea3b ID |
636 | /* |
637 | * Platform specific helpers to calculate the port PLL loopback- (clock.m), | |
638 | * and post-divider (clock.p) values, pre- (clock.vco) and post-divided fast | |
639 | * (clock.dot) clock rates. This fast dot clock is fed to the port's IO logic. | |
640 | * The helpers' return value is the rate of the clock that is fed to the | |
641 | * display engine's pipe which can be the above fast dot clock rate or a | |
642 | * divided-down version of it. | |
643 | */ | |
f2b115e6 | 644 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
dccbea3b | 645 | static int pnv_calc_dpll_params(int refclk, intel_clock_t *clock) |
79e53945 | 646 | { |
2177832f SL |
647 | clock->m = clock->m2 + 2; |
648 | clock->p = clock->p1 * clock->p2; | |
ed5ca77e | 649 | if (WARN_ON(clock->n == 0 || clock->p == 0)) |
dccbea3b | 650 | return 0; |
fb03ac01 VS |
651 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); |
652 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
653 | |
654 | return clock->dot; | |
2177832f SL |
655 | } |
656 | ||
7429e9d4 DV |
657 | static uint32_t i9xx_dpll_compute_m(struct dpll *dpll) |
658 | { | |
659 | return 5 * (dpll->m1 + 2) + (dpll->m2 + 2); | |
660 | } | |
661 | ||
dccbea3b | 662 | static int i9xx_calc_dpll_params(int refclk, intel_clock_t *clock) |
2177832f | 663 | { |
7429e9d4 | 664 | clock->m = i9xx_dpll_compute_m(clock); |
79e53945 | 665 | clock->p = clock->p1 * clock->p2; |
ed5ca77e | 666 | if (WARN_ON(clock->n + 2 == 0 || clock->p == 0)) |
dccbea3b | 667 | return 0; |
fb03ac01 VS |
668 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2); |
669 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
670 | |
671 | return clock->dot; | |
79e53945 JB |
672 | } |
673 | ||
dccbea3b | 674 | static int vlv_calc_dpll_params(int refclk, intel_clock_t *clock) |
589eca67 ID |
675 | { |
676 | clock->m = clock->m1 * clock->m2; | |
677 | clock->p = clock->p1 * clock->p2; | |
678 | if (WARN_ON(clock->n == 0 || clock->p == 0)) | |
dccbea3b | 679 | return 0; |
589eca67 ID |
680 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); |
681 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
682 | |
683 | return clock->dot / 5; | |
589eca67 ID |
684 | } |
685 | ||
dccbea3b | 686 | int chv_calc_dpll_params(int refclk, intel_clock_t *clock) |
ef9348c8 CML |
687 | { |
688 | clock->m = clock->m1 * clock->m2; | |
689 | clock->p = clock->p1 * clock->p2; | |
690 | if (WARN_ON(clock->n == 0 || clock->p == 0)) | |
dccbea3b | 691 | return 0; |
ef9348c8 CML |
692 | clock->vco = DIV_ROUND_CLOSEST_ULL((uint64_t)refclk * clock->m, |
693 | clock->n << 22); | |
694 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
695 | |
696 | return clock->dot / 5; | |
ef9348c8 CML |
697 | } |
698 | ||
7c04d1d9 | 699 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
700 | /** |
701 | * Returns whether the given set of divisors are valid for a given refclk with | |
702 | * the given connectors. | |
703 | */ | |
704 | ||
1b894b59 CW |
705 | static bool intel_PLL_is_valid(struct drm_device *dev, |
706 | const intel_limit_t *limit, | |
707 | const intel_clock_t *clock) | |
79e53945 | 708 | { |
f01b7962 VS |
709 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
710 | INTELPllInvalid("n out of range\n"); | |
79e53945 | 711 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 712 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 713 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 714 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 715 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 716 | INTELPllInvalid("m1 out of range\n"); |
f01b7962 | 717 | |
666a4537 WB |
718 | if (!IS_PINEVIEW(dev) && !IS_VALLEYVIEW(dev) && |
719 | !IS_CHERRYVIEW(dev) && !IS_BROXTON(dev)) | |
f01b7962 VS |
720 | if (clock->m1 <= clock->m2) |
721 | INTELPllInvalid("m1 <= m2\n"); | |
722 | ||
666a4537 | 723 | if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev) && !IS_BROXTON(dev)) { |
f01b7962 VS |
724 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
725 | INTELPllInvalid("p out of range\n"); | |
726 | if (clock->m < limit->m.min || limit->m.max < clock->m) | |
727 | INTELPllInvalid("m out of range\n"); | |
728 | } | |
729 | ||
79e53945 | 730 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 731 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
732 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
733 | * connector, etc., rather than just a single range. | |
734 | */ | |
735 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 736 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
737 | |
738 | return true; | |
739 | } | |
740 | ||
3b1429d9 VS |
741 | static int |
742 | i9xx_select_p2_div(const intel_limit_t *limit, | |
743 | const struct intel_crtc_state *crtc_state, | |
744 | int target) | |
79e53945 | 745 | { |
3b1429d9 | 746 | struct drm_device *dev = crtc_state->base.crtc->dev; |
79e53945 | 747 | |
a93e255f | 748 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
79e53945 | 749 | /* |
a210b028 DV |
750 | * For LVDS just rely on its current settings for dual-channel. |
751 | * We haven't figured out how to reliably set up different | |
752 | * single/dual channel state, if we even can. | |
79e53945 | 753 | */ |
1974cad0 | 754 | if (intel_is_dual_link_lvds(dev)) |
3b1429d9 | 755 | return limit->p2.p2_fast; |
79e53945 | 756 | else |
3b1429d9 | 757 | return limit->p2.p2_slow; |
79e53945 JB |
758 | } else { |
759 | if (target < limit->p2.dot_limit) | |
3b1429d9 | 760 | return limit->p2.p2_slow; |
79e53945 | 761 | else |
3b1429d9 | 762 | return limit->p2.p2_fast; |
79e53945 | 763 | } |
3b1429d9 VS |
764 | } |
765 | ||
766 | static bool | |
767 | i9xx_find_best_dpll(const intel_limit_t *limit, | |
768 | struct intel_crtc_state *crtc_state, | |
769 | int target, int refclk, intel_clock_t *match_clock, | |
770 | intel_clock_t *best_clock) | |
771 | { | |
772 | struct drm_device *dev = crtc_state->base.crtc->dev; | |
773 | intel_clock_t clock; | |
774 | int err = target; | |
79e53945 | 775 | |
0206e353 | 776 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 777 | |
3b1429d9 VS |
778 | clock.p2 = i9xx_select_p2_div(limit, crtc_state, target); |
779 | ||
42158660 ZY |
780 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
781 | clock.m1++) { | |
782 | for (clock.m2 = limit->m2.min; | |
783 | clock.m2 <= limit->m2.max; clock.m2++) { | |
c0efc387 | 784 | if (clock.m2 >= clock.m1) |
42158660 ZY |
785 | break; |
786 | for (clock.n = limit->n.min; | |
787 | clock.n <= limit->n.max; clock.n++) { | |
788 | for (clock.p1 = limit->p1.min; | |
789 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
790 | int this_err; |
791 | ||
dccbea3b | 792 | i9xx_calc_dpll_params(refclk, &clock); |
ac58c3f0 DV |
793 | if (!intel_PLL_is_valid(dev, limit, |
794 | &clock)) | |
795 | continue; | |
796 | if (match_clock && | |
797 | clock.p != match_clock->p) | |
798 | continue; | |
799 | ||
800 | this_err = abs(clock.dot - target); | |
801 | if (this_err < err) { | |
802 | *best_clock = clock; | |
803 | err = this_err; | |
804 | } | |
805 | } | |
806 | } | |
807 | } | |
808 | } | |
809 | ||
810 | return (err != target); | |
811 | } | |
812 | ||
813 | static bool | |
a93e255f ACO |
814 | pnv_find_best_dpll(const intel_limit_t *limit, |
815 | struct intel_crtc_state *crtc_state, | |
ee9300bb DV |
816 | int target, int refclk, intel_clock_t *match_clock, |
817 | intel_clock_t *best_clock) | |
79e53945 | 818 | { |
3b1429d9 | 819 | struct drm_device *dev = crtc_state->base.crtc->dev; |
79e53945 | 820 | intel_clock_t clock; |
79e53945 JB |
821 | int err = target; |
822 | ||
0206e353 | 823 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 824 | |
3b1429d9 VS |
825 | clock.p2 = i9xx_select_p2_div(limit, crtc_state, target); |
826 | ||
42158660 ZY |
827 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
828 | clock.m1++) { | |
829 | for (clock.m2 = limit->m2.min; | |
830 | clock.m2 <= limit->m2.max; clock.m2++) { | |
42158660 ZY |
831 | for (clock.n = limit->n.min; |
832 | clock.n <= limit->n.max; clock.n++) { | |
833 | for (clock.p1 = limit->p1.min; | |
834 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
835 | int this_err; |
836 | ||
dccbea3b | 837 | pnv_calc_dpll_params(refclk, &clock); |
1b894b59 CW |
838 | if (!intel_PLL_is_valid(dev, limit, |
839 | &clock)) | |
79e53945 | 840 | continue; |
cec2f356 SP |
841 | if (match_clock && |
842 | clock.p != match_clock->p) | |
843 | continue; | |
79e53945 JB |
844 | |
845 | this_err = abs(clock.dot - target); | |
846 | if (this_err < err) { | |
847 | *best_clock = clock; | |
848 | err = this_err; | |
849 | } | |
850 | } | |
851 | } | |
852 | } | |
853 | } | |
854 | ||
855 | return (err != target); | |
856 | } | |
857 | ||
d4906093 | 858 | static bool |
a93e255f ACO |
859 | g4x_find_best_dpll(const intel_limit_t *limit, |
860 | struct intel_crtc_state *crtc_state, | |
ee9300bb DV |
861 | int target, int refclk, intel_clock_t *match_clock, |
862 | intel_clock_t *best_clock) | |
d4906093 | 863 | { |
3b1429d9 | 864 | struct drm_device *dev = crtc_state->base.crtc->dev; |
d4906093 ML |
865 | intel_clock_t clock; |
866 | int max_n; | |
3b1429d9 | 867 | bool found = false; |
6ba770dc AJ |
868 | /* approximately equals target * 0.00585 */ |
869 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
870 | |
871 | memset(best_clock, 0, sizeof(*best_clock)); | |
3b1429d9 VS |
872 | |
873 | clock.p2 = i9xx_select_p2_div(limit, crtc_state, target); | |
874 | ||
d4906093 | 875 | max_n = limit->n.max; |
f77f13e2 | 876 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 877 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 878 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
879 | for (clock.m1 = limit->m1.max; |
880 | clock.m1 >= limit->m1.min; clock.m1--) { | |
881 | for (clock.m2 = limit->m2.max; | |
882 | clock.m2 >= limit->m2.min; clock.m2--) { | |
883 | for (clock.p1 = limit->p1.max; | |
884 | clock.p1 >= limit->p1.min; clock.p1--) { | |
885 | int this_err; | |
886 | ||
dccbea3b | 887 | i9xx_calc_dpll_params(refclk, &clock); |
1b894b59 CW |
888 | if (!intel_PLL_is_valid(dev, limit, |
889 | &clock)) | |
d4906093 | 890 | continue; |
1b894b59 CW |
891 | |
892 | this_err = abs(clock.dot - target); | |
d4906093 ML |
893 | if (this_err < err_most) { |
894 | *best_clock = clock; | |
895 | err_most = this_err; | |
896 | max_n = clock.n; | |
897 | found = true; | |
898 | } | |
899 | } | |
900 | } | |
901 | } | |
902 | } | |
2c07245f ZW |
903 | return found; |
904 | } | |
905 | ||
d5dd62bd ID |
906 | /* |
907 | * Check if the calculated PLL configuration is more optimal compared to the | |
908 | * best configuration and error found so far. Return the calculated error. | |
909 | */ | |
910 | static bool vlv_PLL_is_optimal(struct drm_device *dev, int target_freq, | |
911 | const intel_clock_t *calculated_clock, | |
912 | const intel_clock_t *best_clock, | |
913 | unsigned int best_error_ppm, | |
914 | unsigned int *error_ppm) | |
915 | { | |
9ca3ba01 ID |
916 | /* |
917 | * For CHV ignore the error and consider only the P value. | |
918 | * Prefer a bigger P value based on HW requirements. | |
919 | */ | |
920 | if (IS_CHERRYVIEW(dev)) { | |
921 | *error_ppm = 0; | |
922 | ||
923 | return calculated_clock->p > best_clock->p; | |
924 | } | |
925 | ||
24be4e46 ID |
926 | if (WARN_ON_ONCE(!target_freq)) |
927 | return false; | |
928 | ||
d5dd62bd ID |
929 | *error_ppm = div_u64(1000000ULL * |
930 | abs(target_freq - calculated_clock->dot), | |
931 | target_freq); | |
932 | /* | |
933 | * Prefer a better P value over a better (smaller) error if the error | |
934 | * is small. Ensure this preference for future configurations too by | |
935 | * setting the error to 0. | |
936 | */ | |
937 | if (*error_ppm < 100 && calculated_clock->p > best_clock->p) { | |
938 | *error_ppm = 0; | |
939 | ||
940 | return true; | |
941 | } | |
942 | ||
943 | return *error_ppm + 10 < best_error_ppm; | |
944 | } | |
945 | ||
a0c4da24 | 946 | static bool |
a93e255f ACO |
947 | vlv_find_best_dpll(const intel_limit_t *limit, |
948 | struct intel_crtc_state *crtc_state, | |
ee9300bb DV |
949 | int target, int refclk, intel_clock_t *match_clock, |
950 | intel_clock_t *best_clock) | |
a0c4da24 | 951 | { |
a93e255f | 952 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
a919ff14 | 953 | struct drm_device *dev = crtc->base.dev; |
6b4bf1c4 | 954 | intel_clock_t clock; |
69e4f900 | 955 | unsigned int bestppm = 1000000; |
27e639bf VS |
956 | /* min update 19.2 MHz */ |
957 | int max_n = min(limit->n.max, refclk / 19200); | |
49e497ef | 958 | bool found = false; |
a0c4da24 | 959 | |
6b4bf1c4 VS |
960 | target *= 5; /* fast clock */ |
961 | ||
962 | memset(best_clock, 0, sizeof(*best_clock)); | |
a0c4da24 JB |
963 | |
964 | /* based on hardware requirement, prefer smaller n to precision */ | |
27e639bf | 965 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
811bbf05 | 966 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { |
889059d8 | 967 | for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow; |
c1a9ae43 | 968 | clock.p2 -= clock.p2 > 10 ? 2 : 1) { |
6b4bf1c4 | 969 | clock.p = clock.p1 * clock.p2; |
a0c4da24 | 970 | /* based on hardware requirement, prefer bigger m1,m2 values */ |
6b4bf1c4 | 971 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) { |
d5dd62bd | 972 | unsigned int ppm; |
69e4f900 | 973 | |
6b4bf1c4 VS |
974 | clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n, |
975 | refclk * clock.m1); | |
976 | ||
dccbea3b | 977 | vlv_calc_dpll_params(refclk, &clock); |
43b0ac53 | 978 | |
f01b7962 VS |
979 | if (!intel_PLL_is_valid(dev, limit, |
980 | &clock)) | |
43b0ac53 VS |
981 | continue; |
982 | ||
d5dd62bd ID |
983 | if (!vlv_PLL_is_optimal(dev, target, |
984 | &clock, | |
985 | best_clock, | |
986 | bestppm, &ppm)) | |
987 | continue; | |
6b4bf1c4 | 988 | |
d5dd62bd ID |
989 | *best_clock = clock; |
990 | bestppm = ppm; | |
991 | found = true; | |
a0c4da24 JB |
992 | } |
993 | } | |
994 | } | |
995 | } | |
a0c4da24 | 996 | |
49e497ef | 997 | return found; |
a0c4da24 | 998 | } |
a4fc5ed6 | 999 | |
ef9348c8 | 1000 | static bool |
a93e255f ACO |
1001 | chv_find_best_dpll(const intel_limit_t *limit, |
1002 | struct intel_crtc_state *crtc_state, | |
ef9348c8 CML |
1003 | int target, int refclk, intel_clock_t *match_clock, |
1004 | intel_clock_t *best_clock) | |
1005 | { | |
a93e255f | 1006 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
a919ff14 | 1007 | struct drm_device *dev = crtc->base.dev; |
9ca3ba01 | 1008 | unsigned int best_error_ppm; |
ef9348c8 CML |
1009 | intel_clock_t clock; |
1010 | uint64_t m2; | |
1011 | int found = false; | |
1012 | ||
1013 | memset(best_clock, 0, sizeof(*best_clock)); | |
9ca3ba01 | 1014 | best_error_ppm = 1000000; |
ef9348c8 CML |
1015 | |
1016 | /* | |
1017 | * Based on hardware doc, the n always set to 1, and m1 always | |
1018 | * set to 2. If requires to support 200Mhz refclk, we need to | |
1019 | * revisit this because n may not 1 anymore. | |
1020 | */ | |
1021 | clock.n = 1, clock.m1 = 2; | |
1022 | target *= 5; /* fast clock */ | |
1023 | ||
1024 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { | |
1025 | for (clock.p2 = limit->p2.p2_fast; | |
1026 | clock.p2 >= limit->p2.p2_slow; | |
1027 | clock.p2 -= clock.p2 > 10 ? 2 : 1) { | |
9ca3ba01 | 1028 | unsigned int error_ppm; |
ef9348c8 CML |
1029 | |
1030 | clock.p = clock.p1 * clock.p2; | |
1031 | ||
1032 | m2 = DIV_ROUND_CLOSEST_ULL(((uint64_t)target * clock.p * | |
1033 | clock.n) << 22, refclk * clock.m1); | |
1034 | ||
1035 | if (m2 > INT_MAX/clock.m1) | |
1036 | continue; | |
1037 | ||
1038 | clock.m2 = m2; | |
1039 | ||
dccbea3b | 1040 | chv_calc_dpll_params(refclk, &clock); |
ef9348c8 CML |
1041 | |
1042 | if (!intel_PLL_is_valid(dev, limit, &clock)) | |
1043 | continue; | |
1044 | ||
9ca3ba01 ID |
1045 | if (!vlv_PLL_is_optimal(dev, target, &clock, best_clock, |
1046 | best_error_ppm, &error_ppm)) | |
1047 | continue; | |
1048 | ||
1049 | *best_clock = clock; | |
1050 | best_error_ppm = error_ppm; | |
1051 | found = true; | |
ef9348c8 CML |
1052 | } |
1053 | } | |
1054 | ||
1055 | return found; | |
1056 | } | |
1057 | ||
5ab7b0b7 ID |
1058 | bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock, |
1059 | intel_clock_t *best_clock) | |
1060 | { | |
1061 | int refclk = i9xx_get_refclk(crtc_state, 0); | |
1062 | ||
1063 | return chv_find_best_dpll(intel_limit(crtc_state, refclk), crtc_state, | |
1064 | target_clock, refclk, NULL, best_clock); | |
1065 | } | |
1066 | ||
20ddf665 VS |
1067 | bool intel_crtc_active(struct drm_crtc *crtc) |
1068 | { | |
1069 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1070 | ||
1071 | /* Be paranoid as we can arrive here with only partial | |
1072 | * state retrieved from the hardware during setup. | |
1073 | * | |
241bfc38 | 1074 | * We can ditch the adjusted_mode.crtc_clock check as soon |
20ddf665 VS |
1075 | * as Haswell has gained clock readout/fastboot support. |
1076 | * | |
66e514c1 | 1077 | * We can ditch the crtc->primary->fb check as soon as we can |
20ddf665 | 1078 | * properly reconstruct framebuffers. |
c3d1f436 MR |
1079 | * |
1080 | * FIXME: The intel_crtc->active here should be switched to | |
1081 | * crtc->state->active once we have proper CRTC states wired up | |
1082 | * for atomic. | |
20ddf665 | 1083 | */ |
c3d1f436 | 1084 | return intel_crtc->active && crtc->primary->state->fb && |
6e3c9717 | 1085 | intel_crtc->config->base.adjusted_mode.crtc_clock; |
20ddf665 VS |
1086 | } |
1087 | ||
a5c961d1 PZ |
1088 | enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv, |
1089 | enum pipe pipe) | |
1090 | { | |
1091 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
1092 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1093 | ||
6e3c9717 | 1094 | return intel_crtc->config->cpu_transcoder; |
a5c961d1 PZ |
1095 | } |
1096 | ||
fbf49ea2 VS |
1097 | static bool pipe_dsl_stopped(struct drm_device *dev, enum pipe pipe) |
1098 | { | |
1099 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f0f59a00 | 1100 | i915_reg_t reg = PIPEDSL(pipe); |
fbf49ea2 VS |
1101 | u32 line1, line2; |
1102 | u32 line_mask; | |
1103 | ||
1104 | if (IS_GEN2(dev)) | |
1105 | line_mask = DSL_LINEMASK_GEN2; | |
1106 | else | |
1107 | line_mask = DSL_LINEMASK_GEN3; | |
1108 | ||
1109 | line1 = I915_READ(reg) & line_mask; | |
6adfb1ef | 1110 | msleep(5); |
fbf49ea2 VS |
1111 | line2 = I915_READ(reg) & line_mask; |
1112 | ||
1113 | return line1 == line2; | |
1114 | } | |
1115 | ||
ab7ad7f6 KP |
1116 | /* |
1117 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
575f7ab7 | 1118 | * @crtc: crtc whose pipe to wait for |
9d0498a2 JB |
1119 | * |
1120 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
1121 | * spinning on the vblank interrupt status bit, since we won't actually | |
1122 | * see an interrupt when the pipe is disabled. | |
1123 | * | |
ab7ad7f6 KP |
1124 | * On Gen4 and above: |
1125 | * wait for the pipe register state bit to turn off | |
1126 | * | |
1127 | * Otherwise: | |
1128 | * wait for the display line value to settle (it usually | |
1129 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 1130 | * |
9d0498a2 | 1131 | */ |
575f7ab7 | 1132 | static void intel_wait_for_pipe_off(struct intel_crtc *crtc) |
9d0498a2 | 1133 | { |
575f7ab7 | 1134 | struct drm_device *dev = crtc->base.dev; |
9d0498a2 | 1135 | struct drm_i915_private *dev_priv = dev->dev_private; |
6e3c9717 | 1136 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
575f7ab7 | 1137 | enum pipe pipe = crtc->pipe; |
ab7ad7f6 KP |
1138 | |
1139 | if (INTEL_INFO(dev)->gen >= 4) { | |
f0f59a00 | 1140 | i915_reg_t reg = PIPECONF(cpu_transcoder); |
ab7ad7f6 KP |
1141 | |
1142 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
1143 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
1144 | 100)) | |
284637d9 | 1145 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1146 | } else { |
ab7ad7f6 | 1147 | /* Wait for the display line to settle */ |
fbf49ea2 | 1148 | if (wait_for(pipe_dsl_stopped(dev, pipe), 100)) |
284637d9 | 1149 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1150 | } |
79e53945 JB |
1151 | } |
1152 | ||
b24e7179 JB |
1153 | static const char *state_string(bool enabled) |
1154 | { | |
1155 | return enabled ? "on" : "off"; | |
1156 | } | |
1157 | ||
1158 | /* Only for pre-ILK configs */ | |
55607e8a DV |
1159 | void assert_pll(struct drm_i915_private *dev_priv, |
1160 | enum pipe pipe, bool state) | |
b24e7179 | 1161 | { |
b24e7179 JB |
1162 | u32 val; |
1163 | bool cur_state; | |
1164 | ||
649636ef | 1165 | val = I915_READ(DPLL(pipe)); |
b24e7179 | 1166 | cur_state = !!(val & DPLL_VCO_ENABLE); |
e2c719b7 | 1167 | I915_STATE_WARN(cur_state != state, |
b24e7179 JB |
1168 | "PLL state assertion failure (expected %s, current %s)\n", |
1169 | state_string(state), state_string(cur_state)); | |
1170 | } | |
b24e7179 | 1171 | |
23538ef1 JN |
1172 | /* XXX: the dsi pll is shared between MIPI DSI ports */ |
1173 | static void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state) | |
1174 | { | |
1175 | u32 val; | |
1176 | bool cur_state; | |
1177 | ||
a580516d | 1178 | mutex_lock(&dev_priv->sb_lock); |
23538ef1 | 1179 | val = vlv_cck_read(dev_priv, CCK_REG_DSI_PLL_CONTROL); |
a580516d | 1180 | mutex_unlock(&dev_priv->sb_lock); |
23538ef1 JN |
1181 | |
1182 | cur_state = val & DSI_PLL_VCO_EN; | |
e2c719b7 | 1183 | I915_STATE_WARN(cur_state != state, |
23538ef1 JN |
1184 | "DSI PLL state assertion failure (expected %s, current %s)\n", |
1185 | state_string(state), state_string(cur_state)); | |
1186 | } | |
1187 | #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true) | |
1188 | #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false) | |
1189 | ||
55607e8a | 1190 | struct intel_shared_dpll * |
e2b78267 DV |
1191 | intel_crtc_to_shared_dpll(struct intel_crtc *crtc) |
1192 | { | |
1193 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
1194 | ||
6e3c9717 | 1195 | if (crtc->config->shared_dpll < 0) |
e2b78267 DV |
1196 | return NULL; |
1197 | ||
6e3c9717 | 1198 | return &dev_priv->shared_dplls[crtc->config->shared_dpll]; |
e2b78267 DV |
1199 | } |
1200 | ||
040484af | 1201 | /* For ILK+ */ |
55607e8a DV |
1202 | void assert_shared_dpll(struct drm_i915_private *dev_priv, |
1203 | struct intel_shared_dpll *pll, | |
1204 | bool state) | |
040484af | 1205 | { |
040484af | 1206 | bool cur_state; |
5358901f | 1207 | struct intel_dpll_hw_state hw_state; |
040484af | 1208 | |
92b27b08 | 1209 | if (WARN (!pll, |
46edb027 | 1210 | "asserting DPLL %s with no DPLL\n", state_string(state))) |
ee7b9f93 | 1211 | return; |
ee7b9f93 | 1212 | |
5358901f | 1213 | cur_state = pll->get_hw_state(dev_priv, pll, &hw_state); |
e2c719b7 | 1214 | I915_STATE_WARN(cur_state != state, |
5358901f DV |
1215 | "%s assertion failure (expected %s, current %s)\n", |
1216 | pll->name, state_string(state), state_string(cur_state)); | |
040484af | 1217 | } |
040484af JB |
1218 | |
1219 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
1220 | enum pipe pipe, bool state) | |
1221 | { | |
040484af | 1222 | bool cur_state; |
ad80a810 PZ |
1223 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1224 | pipe); | |
040484af | 1225 | |
affa9354 PZ |
1226 | if (HAS_DDI(dev_priv->dev)) { |
1227 | /* DDI does not have a specific FDI_TX register */ | |
649636ef | 1228 | u32 val = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); |
ad80a810 | 1229 | cur_state = !!(val & TRANS_DDI_FUNC_ENABLE); |
bf507ef7 | 1230 | } else { |
649636ef | 1231 | u32 val = I915_READ(FDI_TX_CTL(pipe)); |
bf507ef7 ED |
1232 | cur_state = !!(val & FDI_TX_ENABLE); |
1233 | } | |
e2c719b7 | 1234 | I915_STATE_WARN(cur_state != state, |
040484af JB |
1235 | "FDI TX state assertion failure (expected %s, current %s)\n", |
1236 | state_string(state), state_string(cur_state)); | |
1237 | } | |
1238 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
1239 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
1240 | ||
1241 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
1242 | enum pipe pipe, bool state) | |
1243 | { | |
040484af JB |
1244 | u32 val; |
1245 | bool cur_state; | |
1246 | ||
649636ef | 1247 | val = I915_READ(FDI_RX_CTL(pipe)); |
d63fa0dc | 1248 | cur_state = !!(val & FDI_RX_ENABLE); |
e2c719b7 | 1249 | I915_STATE_WARN(cur_state != state, |
040484af JB |
1250 | "FDI RX state assertion failure (expected %s, current %s)\n", |
1251 | state_string(state), state_string(cur_state)); | |
1252 | } | |
1253 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
1254 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1255 | ||
1256 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1257 | enum pipe pipe) | |
1258 | { | |
040484af JB |
1259 | u32 val; |
1260 | ||
1261 | /* ILK FDI PLL is always enabled */ | |
3d13ef2e | 1262 | if (INTEL_INFO(dev_priv->dev)->gen == 5) |
040484af JB |
1263 | return; |
1264 | ||
bf507ef7 | 1265 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
affa9354 | 1266 | if (HAS_DDI(dev_priv->dev)) |
bf507ef7 ED |
1267 | return; |
1268 | ||
649636ef | 1269 | val = I915_READ(FDI_TX_CTL(pipe)); |
e2c719b7 | 1270 | I915_STATE_WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); |
040484af JB |
1271 | } |
1272 | ||
55607e8a DV |
1273 | void assert_fdi_rx_pll(struct drm_i915_private *dev_priv, |
1274 | enum pipe pipe, bool state) | |
040484af | 1275 | { |
040484af | 1276 | u32 val; |
55607e8a | 1277 | bool cur_state; |
040484af | 1278 | |
649636ef | 1279 | val = I915_READ(FDI_RX_CTL(pipe)); |
55607e8a | 1280 | cur_state = !!(val & FDI_RX_PLL_ENABLE); |
e2c719b7 | 1281 | I915_STATE_WARN(cur_state != state, |
55607e8a DV |
1282 | "FDI RX PLL assertion failure (expected %s, current %s)\n", |
1283 | state_string(state), state_string(cur_state)); | |
040484af JB |
1284 | } |
1285 | ||
b680c37a DV |
1286 | void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1287 | enum pipe pipe) | |
ea0760cf | 1288 | { |
bedd4dba | 1289 | struct drm_device *dev = dev_priv->dev; |
f0f59a00 | 1290 | i915_reg_t pp_reg; |
ea0760cf JB |
1291 | u32 val; |
1292 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1293 | bool locked = true; |
ea0760cf | 1294 | |
bedd4dba JN |
1295 | if (WARN_ON(HAS_DDI(dev))) |
1296 | return; | |
1297 | ||
1298 | if (HAS_PCH_SPLIT(dev)) { | |
1299 | u32 port_sel; | |
1300 | ||
ea0760cf | 1301 | pp_reg = PCH_PP_CONTROL; |
bedd4dba JN |
1302 | port_sel = I915_READ(PCH_PP_ON_DELAYS) & PANEL_PORT_SELECT_MASK; |
1303 | ||
1304 | if (port_sel == PANEL_PORT_SELECT_LVDS && | |
1305 | I915_READ(PCH_LVDS) & LVDS_PIPEB_SELECT) | |
1306 | panel_pipe = PIPE_B; | |
1307 | /* XXX: else fix for eDP */ | |
666a4537 | 1308 | } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
bedd4dba JN |
1309 | /* presumably write lock depends on pipe, not port select */ |
1310 | pp_reg = VLV_PIPE_PP_CONTROL(pipe); | |
1311 | panel_pipe = pipe; | |
ea0760cf JB |
1312 | } else { |
1313 | pp_reg = PP_CONTROL; | |
bedd4dba JN |
1314 | if (I915_READ(LVDS) & LVDS_PIPEB_SELECT) |
1315 | panel_pipe = PIPE_B; | |
ea0760cf JB |
1316 | } |
1317 | ||
1318 | val = I915_READ(pp_reg); | |
1319 | if (!(val & PANEL_POWER_ON) || | |
ec49ba2d | 1320 | ((val & PANEL_UNLOCK_MASK) == PANEL_UNLOCK_REGS)) |
ea0760cf JB |
1321 | locked = false; |
1322 | ||
e2c719b7 | 1323 | I915_STATE_WARN(panel_pipe == pipe && locked, |
ea0760cf | 1324 | "panel assertion failure, pipe %c regs locked\n", |
9db4a9c7 | 1325 | pipe_name(pipe)); |
ea0760cf JB |
1326 | } |
1327 | ||
93ce0ba6 JN |
1328 | static void assert_cursor(struct drm_i915_private *dev_priv, |
1329 | enum pipe pipe, bool state) | |
1330 | { | |
1331 | struct drm_device *dev = dev_priv->dev; | |
1332 | bool cur_state; | |
1333 | ||
d9d82081 | 1334 | if (IS_845G(dev) || IS_I865G(dev)) |
0b87c24e | 1335 | cur_state = I915_READ(CURCNTR(PIPE_A)) & CURSOR_ENABLE; |
d9d82081 | 1336 | else |
5efb3e28 | 1337 | cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE; |
93ce0ba6 | 1338 | |
e2c719b7 | 1339 | I915_STATE_WARN(cur_state != state, |
93ce0ba6 JN |
1340 | "cursor on pipe %c assertion failure (expected %s, current %s)\n", |
1341 | pipe_name(pipe), state_string(state), state_string(cur_state)); | |
1342 | } | |
1343 | #define assert_cursor_enabled(d, p) assert_cursor(d, p, true) | |
1344 | #define assert_cursor_disabled(d, p) assert_cursor(d, p, false) | |
1345 | ||
b840d907 JB |
1346 | void assert_pipe(struct drm_i915_private *dev_priv, |
1347 | enum pipe pipe, bool state) | |
b24e7179 | 1348 | { |
63d7bbe9 | 1349 | bool cur_state; |
702e7a56 PZ |
1350 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1351 | pipe); | |
b24e7179 | 1352 | |
b6b5d049 VS |
1353 | /* if we need the pipe quirk it must be always on */ |
1354 | if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
1355 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
8e636784 DV |
1356 | state = true; |
1357 | ||
f458ebbc | 1358 | if (!intel_display_power_is_enabled(dev_priv, |
b97186f0 | 1359 | POWER_DOMAIN_TRANSCODER(cpu_transcoder))) { |
69310161 PZ |
1360 | cur_state = false; |
1361 | } else { | |
649636ef | 1362 | u32 val = I915_READ(PIPECONF(cpu_transcoder)); |
69310161 PZ |
1363 | cur_state = !!(val & PIPECONF_ENABLE); |
1364 | } | |
1365 | ||
e2c719b7 | 1366 | I915_STATE_WARN(cur_state != state, |
63d7bbe9 | 1367 | "pipe %c assertion failure (expected %s, current %s)\n", |
9db4a9c7 | 1368 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1369 | } |
1370 | ||
931872fc CW |
1371 | static void assert_plane(struct drm_i915_private *dev_priv, |
1372 | enum plane plane, bool state) | |
b24e7179 | 1373 | { |
b24e7179 | 1374 | u32 val; |
931872fc | 1375 | bool cur_state; |
b24e7179 | 1376 | |
649636ef | 1377 | val = I915_READ(DSPCNTR(plane)); |
931872fc | 1378 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
e2c719b7 | 1379 | I915_STATE_WARN(cur_state != state, |
931872fc CW |
1380 | "plane %c assertion failure (expected %s, current %s)\n", |
1381 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1382 | } |
1383 | ||
931872fc CW |
1384 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1385 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1386 | ||
b24e7179 JB |
1387 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1388 | enum pipe pipe) | |
1389 | { | |
653e1026 | 1390 | struct drm_device *dev = dev_priv->dev; |
649636ef | 1391 | int i; |
b24e7179 | 1392 | |
653e1026 VS |
1393 | /* Primary planes are fixed to pipes on gen4+ */ |
1394 | if (INTEL_INFO(dev)->gen >= 4) { | |
649636ef | 1395 | u32 val = I915_READ(DSPCNTR(pipe)); |
e2c719b7 | 1396 | I915_STATE_WARN(val & DISPLAY_PLANE_ENABLE, |
28c05794 AJ |
1397 | "plane %c assertion failure, should be disabled but not\n", |
1398 | plane_name(pipe)); | |
19ec1358 | 1399 | return; |
28c05794 | 1400 | } |
19ec1358 | 1401 | |
b24e7179 | 1402 | /* Need to check both planes against the pipe */ |
055e393f | 1403 | for_each_pipe(dev_priv, i) { |
649636ef VS |
1404 | u32 val = I915_READ(DSPCNTR(i)); |
1405 | enum pipe cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
b24e7179 | 1406 | DISPPLANE_SEL_PIPE_SHIFT; |
e2c719b7 | 1407 | I915_STATE_WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, |
9db4a9c7 JB |
1408 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1409 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1410 | } |
1411 | } | |
1412 | ||
19332d7a JB |
1413 | static void assert_sprites_disabled(struct drm_i915_private *dev_priv, |
1414 | enum pipe pipe) | |
1415 | { | |
20674eef | 1416 | struct drm_device *dev = dev_priv->dev; |
649636ef | 1417 | int sprite; |
19332d7a | 1418 | |
7feb8b88 | 1419 | if (INTEL_INFO(dev)->gen >= 9) { |
3bdcfc0c | 1420 | for_each_sprite(dev_priv, pipe, sprite) { |
649636ef | 1421 | u32 val = I915_READ(PLANE_CTL(pipe, sprite)); |
e2c719b7 | 1422 | I915_STATE_WARN(val & PLANE_CTL_ENABLE, |
7feb8b88 DL |
1423 | "plane %d assertion failure, should be off on pipe %c but is still active\n", |
1424 | sprite, pipe_name(pipe)); | |
1425 | } | |
666a4537 | 1426 | } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
3bdcfc0c | 1427 | for_each_sprite(dev_priv, pipe, sprite) { |
649636ef | 1428 | u32 val = I915_READ(SPCNTR(pipe, sprite)); |
e2c719b7 | 1429 | I915_STATE_WARN(val & SP_ENABLE, |
20674eef | 1430 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
1fe47785 | 1431 | sprite_name(pipe, sprite), pipe_name(pipe)); |
20674eef VS |
1432 | } |
1433 | } else if (INTEL_INFO(dev)->gen >= 7) { | |
649636ef | 1434 | u32 val = I915_READ(SPRCTL(pipe)); |
e2c719b7 | 1435 | I915_STATE_WARN(val & SPRITE_ENABLE, |
06da8da2 | 1436 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
20674eef VS |
1437 | plane_name(pipe), pipe_name(pipe)); |
1438 | } else if (INTEL_INFO(dev)->gen >= 5) { | |
649636ef | 1439 | u32 val = I915_READ(DVSCNTR(pipe)); |
e2c719b7 | 1440 | I915_STATE_WARN(val & DVS_ENABLE, |
06da8da2 | 1441 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
20674eef | 1442 | plane_name(pipe), pipe_name(pipe)); |
19332d7a JB |
1443 | } |
1444 | } | |
1445 | ||
08c71e5e VS |
1446 | static void assert_vblank_disabled(struct drm_crtc *crtc) |
1447 | { | |
e2c719b7 | 1448 | if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc) == 0)) |
08c71e5e VS |
1449 | drm_crtc_vblank_put(crtc); |
1450 | } | |
1451 | ||
89eff4be | 1452 | static void ibx_assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
92f2584a JB |
1453 | { |
1454 | u32 val; | |
1455 | bool enabled; | |
1456 | ||
e2c719b7 | 1457 | I915_STATE_WARN_ON(!(HAS_PCH_IBX(dev_priv->dev) || HAS_PCH_CPT(dev_priv->dev))); |
9d82aa17 | 1458 | |
92f2584a JB |
1459 | val = I915_READ(PCH_DREF_CONTROL); |
1460 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1461 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
e2c719b7 | 1462 | I915_STATE_WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); |
92f2584a JB |
1463 | } |
1464 | ||
ab9412ba DV |
1465 | static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv, |
1466 | enum pipe pipe) | |
92f2584a | 1467 | { |
92f2584a JB |
1468 | u32 val; |
1469 | bool enabled; | |
1470 | ||
649636ef | 1471 | val = I915_READ(PCH_TRANSCONF(pipe)); |
92f2584a | 1472 | enabled = !!(val & TRANS_ENABLE); |
e2c719b7 | 1473 | I915_STATE_WARN(enabled, |
9db4a9c7 JB |
1474 | "transcoder assertion failed, should be off on pipe %c but is still active\n", |
1475 | pipe_name(pipe)); | |
92f2584a JB |
1476 | } |
1477 | ||
4e634389 KP |
1478 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1479 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1480 | { |
1481 | if ((val & DP_PORT_EN) == 0) | |
1482 | return false; | |
1483 | ||
1484 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
f0f59a00 | 1485 | u32 trans_dp_ctl = I915_READ(TRANS_DP_CTL(pipe)); |
f0575e92 KP |
1486 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) |
1487 | return false; | |
44f37d1f CML |
1488 | } else if (IS_CHERRYVIEW(dev_priv->dev)) { |
1489 | if ((val & DP_PIPE_MASK_CHV) != DP_PIPE_SELECT_CHV(pipe)) | |
1490 | return false; | |
f0575e92 KP |
1491 | } else { |
1492 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1493 | return false; | |
1494 | } | |
1495 | return true; | |
1496 | } | |
1497 | ||
1519b995 KP |
1498 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1499 | enum pipe pipe, u32 val) | |
1500 | { | |
dc0fa718 | 1501 | if ((val & SDVO_ENABLE) == 0) |
1519b995 KP |
1502 | return false; |
1503 | ||
1504 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
dc0fa718 | 1505 | if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe)) |
1519b995 | 1506 | return false; |
44f37d1f CML |
1507 | } else if (IS_CHERRYVIEW(dev_priv->dev)) { |
1508 | if ((val & SDVO_PIPE_SEL_MASK_CHV) != SDVO_PIPE_SEL_CHV(pipe)) | |
1509 | return false; | |
1519b995 | 1510 | } else { |
dc0fa718 | 1511 | if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe)) |
1519b995 KP |
1512 | return false; |
1513 | } | |
1514 | return true; | |
1515 | } | |
1516 | ||
1517 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1518 | enum pipe pipe, u32 val) | |
1519 | { | |
1520 | if ((val & LVDS_PORT_EN) == 0) | |
1521 | return false; | |
1522 | ||
1523 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1524 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1525 | return false; | |
1526 | } else { | |
1527 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1528 | return false; | |
1529 | } | |
1530 | return true; | |
1531 | } | |
1532 | ||
1533 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1534 | enum pipe pipe, u32 val) | |
1535 | { | |
1536 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1537 | return false; | |
1538 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1539 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1540 | return false; | |
1541 | } else { | |
1542 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1543 | return false; | |
1544 | } | |
1545 | return true; | |
1546 | } | |
1547 | ||
291906f1 | 1548 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0f59a00 VS |
1549 | enum pipe pipe, i915_reg_t reg, |
1550 | u32 port_sel) | |
291906f1 | 1551 | { |
47a05eca | 1552 | u32 val = I915_READ(reg); |
e2c719b7 | 1553 | I915_STATE_WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1554 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
f0f59a00 | 1555 | i915_mmio_reg_offset(reg), pipe_name(pipe)); |
de9a35ab | 1556 | |
e2c719b7 | 1557 | I915_STATE_WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 |
75c5da27 | 1558 | && (val & DP_PIPEB_SELECT), |
de9a35ab | 1559 | "IBX PCH dp port still using transcoder B\n"); |
291906f1 JB |
1560 | } |
1561 | ||
1562 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
f0f59a00 | 1563 | enum pipe pipe, i915_reg_t reg) |
291906f1 | 1564 | { |
47a05eca | 1565 | u32 val = I915_READ(reg); |
e2c719b7 | 1566 | I915_STATE_WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1567 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
f0f59a00 | 1568 | i915_mmio_reg_offset(reg), pipe_name(pipe)); |
de9a35ab | 1569 | |
e2c719b7 | 1570 | I915_STATE_WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0 |
75c5da27 | 1571 | && (val & SDVO_PIPE_B_SELECT), |
de9a35ab | 1572 | "IBX PCH hdmi port still using transcoder B\n"); |
291906f1 JB |
1573 | } |
1574 | ||
1575 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1576 | enum pipe pipe) | |
1577 | { | |
291906f1 | 1578 | u32 val; |
291906f1 | 1579 | |
f0575e92 KP |
1580 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1581 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1582 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 | 1583 | |
649636ef | 1584 | val = I915_READ(PCH_ADPA); |
e2c719b7 | 1585 | I915_STATE_WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1586 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1587 | pipe_name(pipe)); |
291906f1 | 1588 | |
649636ef | 1589 | val = I915_READ(PCH_LVDS); |
e2c719b7 | 1590 | I915_STATE_WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1591 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1592 | pipe_name(pipe)); |
291906f1 | 1593 | |
e2debe91 PZ |
1594 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB); |
1595 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC); | |
1596 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID); | |
291906f1 JB |
1597 | } |
1598 | ||
d288f65f | 1599 | static void vlv_enable_pll(struct intel_crtc *crtc, |
5cec258b | 1600 | const struct intel_crtc_state *pipe_config) |
87442f73 | 1601 | { |
426115cf DV |
1602 | struct drm_device *dev = crtc->base.dev; |
1603 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f0f59a00 | 1604 | i915_reg_t reg = DPLL(crtc->pipe); |
d288f65f | 1605 | u32 dpll = pipe_config->dpll_hw_state.dpll; |
87442f73 | 1606 | |
426115cf | 1607 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87442f73 | 1608 | |
87442f73 | 1609 | /* PLL is protected by panel, make sure we can write it */ |
6a9e7363 | 1610 | if (IS_MOBILE(dev_priv->dev)) |
426115cf | 1611 | assert_panel_unlocked(dev_priv, crtc->pipe); |
87442f73 | 1612 | |
426115cf DV |
1613 | I915_WRITE(reg, dpll); |
1614 | POSTING_READ(reg); | |
1615 | udelay(150); | |
1616 | ||
1617 | if (wait_for(((I915_READ(reg) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) | |
1618 | DRM_ERROR("DPLL %d failed to lock\n", crtc->pipe); | |
1619 | ||
d288f65f | 1620 | I915_WRITE(DPLL_MD(crtc->pipe), pipe_config->dpll_hw_state.dpll_md); |
426115cf | 1621 | POSTING_READ(DPLL_MD(crtc->pipe)); |
87442f73 DV |
1622 | |
1623 | /* We do this three times for luck */ | |
426115cf | 1624 | I915_WRITE(reg, dpll); |
87442f73 DV |
1625 | POSTING_READ(reg); |
1626 | udelay(150); /* wait for warmup */ | |
426115cf | 1627 | I915_WRITE(reg, dpll); |
87442f73 DV |
1628 | POSTING_READ(reg); |
1629 | udelay(150); /* wait for warmup */ | |
426115cf | 1630 | I915_WRITE(reg, dpll); |
87442f73 DV |
1631 | POSTING_READ(reg); |
1632 | udelay(150); /* wait for warmup */ | |
1633 | } | |
1634 | ||
d288f65f | 1635 | static void chv_enable_pll(struct intel_crtc *crtc, |
5cec258b | 1636 | const struct intel_crtc_state *pipe_config) |
9d556c99 CML |
1637 | { |
1638 | struct drm_device *dev = crtc->base.dev; | |
1639 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1640 | int pipe = crtc->pipe; | |
1641 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
9d556c99 CML |
1642 | u32 tmp; |
1643 | ||
1644 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
1645 | ||
a580516d | 1646 | mutex_lock(&dev_priv->sb_lock); |
9d556c99 CML |
1647 | |
1648 | /* Enable back the 10bit clock to display controller */ | |
1649 | tmp = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)); | |
1650 | tmp |= DPIO_DCLKP_EN; | |
1651 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), tmp); | |
1652 | ||
54433e91 VS |
1653 | mutex_unlock(&dev_priv->sb_lock); |
1654 | ||
9d556c99 CML |
1655 | /* |
1656 | * Need to wait > 100ns between dclkp clock enable bit and PLL enable. | |
1657 | */ | |
1658 | udelay(1); | |
1659 | ||
1660 | /* Enable PLL */ | |
d288f65f | 1661 | I915_WRITE(DPLL(pipe), pipe_config->dpll_hw_state.dpll); |
9d556c99 CML |
1662 | |
1663 | /* Check PLL is locked */ | |
a11b0703 | 1664 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) |
9d556c99 CML |
1665 | DRM_ERROR("PLL %d failed to lock\n", pipe); |
1666 | ||
a11b0703 | 1667 | /* not sure when this should be written */ |
d288f65f | 1668 | I915_WRITE(DPLL_MD(pipe), pipe_config->dpll_hw_state.dpll_md); |
a11b0703 | 1669 | POSTING_READ(DPLL_MD(pipe)); |
9d556c99 CML |
1670 | } |
1671 | ||
1c4e0274 VS |
1672 | static int intel_num_dvo_pipes(struct drm_device *dev) |
1673 | { | |
1674 | struct intel_crtc *crtc; | |
1675 | int count = 0; | |
1676 | ||
1677 | for_each_intel_crtc(dev, crtc) | |
3538b9df | 1678 | count += crtc->base.state->active && |
409ee761 | 1679 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO); |
1c4e0274 VS |
1680 | |
1681 | return count; | |
1682 | } | |
1683 | ||
66e3d5c0 | 1684 | static void i9xx_enable_pll(struct intel_crtc *crtc) |
63d7bbe9 | 1685 | { |
66e3d5c0 DV |
1686 | struct drm_device *dev = crtc->base.dev; |
1687 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f0f59a00 | 1688 | i915_reg_t reg = DPLL(crtc->pipe); |
6e3c9717 | 1689 | u32 dpll = crtc->config->dpll_hw_state.dpll; |
63d7bbe9 | 1690 | |
66e3d5c0 | 1691 | assert_pipe_disabled(dev_priv, crtc->pipe); |
58c6eaa2 | 1692 | |
63d7bbe9 | 1693 | /* No really, not for ILK+ */ |
3d13ef2e | 1694 | BUG_ON(INTEL_INFO(dev)->gen >= 5); |
63d7bbe9 JB |
1695 | |
1696 | /* PLL is protected by panel, make sure we can write it */ | |
66e3d5c0 DV |
1697 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
1698 | assert_panel_unlocked(dev_priv, crtc->pipe); | |
63d7bbe9 | 1699 | |
1c4e0274 VS |
1700 | /* Enable DVO 2x clock on both PLLs if necessary */ |
1701 | if (IS_I830(dev) && intel_num_dvo_pipes(dev) > 0) { | |
1702 | /* | |
1703 | * It appears to be important that we don't enable this | |
1704 | * for the current pipe before otherwise configuring the | |
1705 | * PLL. No idea how this should be handled if multiple | |
1706 | * DVO outputs are enabled simultaneosly. | |
1707 | */ | |
1708 | dpll |= DPLL_DVO_2X_MODE; | |
1709 | I915_WRITE(DPLL(!crtc->pipe), | |
1710 | I915_READ(DPLL(!crtc->pipe)) | DPLL_DVO_2X_MODE); | |
1711 | } | |
66e3d5c0 | 1712 | |
c2b63374 VS |
1713 | /* |
1714 | * Apparently we need to have VGA mode enabled prior to changing | |
1715 | * the P1/P2 dividers. Otherwise the DPLL will keep using the old | |
1716 | * dividers, even though the register value does change. | |
1717 | */ | |
1718 | I915_WRITE(reg, 0); | |
1719 | ||
8e7a65aa VS |
1720 | I915_WRITE(reg, dpll); |
1721 | ||
66e3d5c0 DV |
1722 | /* Wait for the clocks to stabilize. */ |
1723 | POSTING_READ(reg); | |
1724 | udelay(150); | |
1725 | ||
1726 | if (INTEL_INFO(dev)->gen >= 4) { | |
1727 | I915_WRITE(DPLL_MD(crtc->pipe), | |
6e3c9717 | 1728 | crtc->config->dpll_hw_state.dpll_md); |
66e3d5c0 DV |
1729 | } else { |
1730 | /* The pixel multiplier can only be updated once the | |
1731 | * DPLL is enabled and the clocks are stable. | |
1732 | * | |
1733 | * So write it again. | |
1734 | */ | |
1735 | I915_WRITE(reg, dpll); | |
1736 | } | |
63d7bbe9 JB |
1737 | |
1738 | /* We do this three times for luck */ | |
66e3d5c0 | 1739 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1740 | POSTING_READ(reg); |
1741 | udelay(150); /* wait for warmup */ | |
66e3d5c0 | 1742 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1743 | POSTING_READ(reg); |
1744 | udelay(150); /* wait for warmup */ | |
66e3d5c0 | 1745 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1746 | POSTING_READ(reg); |
1747 | udelay(150); /* wait for warmup */ | |
1748 | } | |
1749 | ||
1750 | /** | |
50b44a44 | 1751 | * i9xx_disable_pll - disable a PLL |
63d7bbe9 JB |
1752 | * @dev_priv: i915 private structure |
1753 | * @pipe: pipe PLL to disable | |
1754 | * | |
1755 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1756 | * | |
1757 | * Note! This is for pre-ILK only. | |
1758 | */ | |
1c4e0274 | 1759 | static void i9xx_disable_pll(struct intel_crtc *crtc) |
63d7bbe9 | 1760 | { |
1c4e0274 VS |
1761 | struct drm_device *dev = crtc->base.dev; |
1762 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1763 | enum pipe pipe = crtc->pipe; | |
1764 | ||
1765 | /* Disable DVO 2x clock on both PLLs if necessary */ | |
1766 | if (IS_I830(dev) && | |
409ee761 | 1767 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO) && |
3538b9df | 1768 | !intel_num_dvo_pipes(dev)) { |
1c4e0274 VS |
1769 | I915_WRITE(DPLL(PIPE_B), |
1770 | I915_READ(DPLL(PIPE_B)) & ~DPLL_DVO_2X_MODE); | |
1771 | I915_WRITE(DPLL(PIPE_A), | |
1772 | I915_READ(DPLL(PIPE_A)) & ~DPLL_DVO_2X_MODE); | |
1773 | } | |
1774 | ||
b6b5d049 VS |
1775 | /* Don't disable pipe or pipe PLLs if needed */ |
1776 | if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
1777 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
63d7bbe9 JB |
1778 | return; |
1779 | ||
1780 | /* Make sure the pipe isn't still relying on us */ | |
1781 | assert_pipe_disabled(dev_priv, pipe); | |
1782 | ||
b8afb911 | 1783 | I915_WRITE(DPLL(pipe), DPLL_VGA_MODE_DIS); |
50b44a44 | 1784 | POSTING_READ(DPLL(pipe)); |
63d7bbe9 JB |
1785 | } |
1786 | ||
f6071166 JB |
1787 | static void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
1788 | { | |
b8afb911 | 1789 | u32 val; |
f6071166 JB |
1790 | |
1791 | /* Make sure the pipe isn't still relying on us */ | |
1792 | assert_pipe_disabled(dev_priv, pipe); | |
1793 | ||
e5cbfbfb ID |
1794 | /* |
1795 | * Leave integrated clock source and reference clock enabled for pipe B. | |
1796 | * The latter is needed for VGA hotplug / manual detection. | |
1797 | */ | |
b8afb911 | 1798 | val = DPLL_VGA_MODE_DIS; |
f6071166 | 1799 | if (pipe == PIPE_B) |
60bfe44f | 1800 | val = DPLL_INTEGRATED_CRI_CLK_VLV | DPLL_REF_CLK_ENABLE_VLV; |
f6071166 JB |
1801 | I915_WRITE(DPLL(pipe), val); |
1802 | POSTING_READ(DPLL(pipe)); | |
076ed3b2 CML |
1803 | |
1804 | } | |
1805 | ||
1806 | static void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1807 | { | |
d752048d | 1808 | enum dpio_channel port = vlv_pipe_to_channel(pipe); |
076ed3b2 CML |
1809 | u32 val; |
1810 | ||
a11b0703 VS |
1811 | /* Make sure the pipe isn't still relying on us */ |
1812 | assert_pipe_disabled(dev_priv, pipe); | |
076ed3b2 | 1813 | |
a11b0703 | 1814 | /* Set PLL en = 0 */ |
60bfe44f VS |
1815 | val = DPLL_SSC_REF_CLK_CHV | |
1816 | DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS; | |
a11b0703 VS |
1817 | if (pipe != PIPE_A) |
1818 | val |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
1819 | I915_WRITE(DPLL(pipe), val); | |
1820 | POSTING_READ(DPLL(pipe)); | |
d752048d | 1821 | |
a580516d | 1822 | mutex_lock(&dev_priv->sb_lock); |
d752048d VS |
1823 | |
1824 | /* Disable 10bit clock to display controller */ | |
1825 | val = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)); | |
1826 | val &= ~DPIO_DCLKP_EN; | |
1827 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), val); | |
1828 | ||
a580516d | 1829 | mutex_unlock(&dev_priv->sb_lock); |
f6071166 JB |
1830 | } |
1831 | ||
e4607fcf | 1832 | void vlv_wait_port_ready(struct drm_i915_private *dev_priv, |
9b6de0a1 VS |
1833 | struct intel_digital_port *dport, |
1834 | unsigned int expected_mask) | |
89b667f8 JB |
1835 | { |
1836 | u32 port_mask; | |
f0f59a00 | 1837 | i915_reg_t dpll_reg; |
89b667f8 | 1838 | |
e4607fcf CML |
1839 | switch (dport->port) { |
1840 | case PORT_B: | |
89b667f8 | 1841 | port_mask = DPLL_PORTB_READY_MASK; |
00fc31b7 | 1842 | dpll_reg = DPLL(0); |
e4607fcf CML |
1843 | break; |
1844 | case PORT_C: | |
89b667f8 | 1845 | port_mask = DPLL_PORTC_READY_MASK; |
00fc31b7 | 1846 | dpll_reg = DPLL(0); |
9b6de0a1 | 1847 | expected_mask <<= 4; |
00fc31b7 CML |
1848 | break; |
1849 | case PORT_D: | |
1850 | port_mask = DPLL_PORTD_READY_MASK; | |
1851 | dpll_reg = DPIO_PHY_STATUS; | |
e4607fcf CML |
1852 | break; |
1853 | default: | |
1854 | BUG(); | |
1855 | } | |
89b667f8 | 1856 | |
9b6de0a1 VS |
1857 | if (wait_for((I915_READ(dpll_reg) & port_mask) == expected_mask, 1000)) |
1858 | WARN(1, "timed out waiting for port %c ready: got 0x%x, expected 0x%x\n", | |
1859 | port_name(dport->port), I915_READ(dpll_reg) & port_mask, expected_mask); | |
89b667f8 JB |
1860 | } |
1861 | ||
b14b1055 DV |
1862 | static void intel_prepare_shared_dpll(struct intel_crtc *crtc) |
1863 | { | |
1864 | struct drm_device *dev = crtc->base.dev; | |
1865 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1866 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); | |
1867 | ||
be19f0ff CW |
1868 | if (WARN_ON(pll == NULL)) |
1869 | return; | |
1870 | ||
3e369b76 | 1871 | WARN_ON(!pll->config.crtc_mask); |
b14b1055 DV |
1872 | if (pll->active == 0) { |
1873 | DRM_DEBUG_DRIVER("setting up %s\n", pll->name); | |
1874 | WARN_ON(pll->on); | |
1875 | assert_shared_dpll_disabled(dev_priv, pll); | |
1876 | ||
1877 | pll->mode_set(dev_priv, pll); | |
1878 | } | |
1879 | } | |
1880 | ||
92f2584a | 1881 | /** |
85b3894f | 1882 | * intel_enable_shared_dpll - enable PCH PLL |
92f2584a JB |
1883 | * @dev_priv: i915 private structure |
1884 | * @pipe: pipe PLL to enable | |
1885 | * | |
1886 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1887 | * drives the transcoder clock. | |
1888 | */ | |
85b3894f | 1889 | static void intel_enable_shared_dpll(struct intel_crtc *crtc) |
92f2584a | 1890 | { |
3d13ef2e DL |
1891 | struct drm_device *dev = crtc->base.dev; |
1892 | struct drm_i915_private *dev_priv = dev->dev_private; | |
e2b78267 | 1893 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); |
92f2584a | 1894 | |
87a875bb | 1895 | if (WARN_ON(pll == NULL)) |
48da64a8 CW |
1896 | return; |
1897 | ||
3e369b76 | 1898 | if (WARN_ON(pll->config.crtc_mask == 0)) |
48da64a8 | 1899 | return; |
ee7b9f93 | 1900 | |
74dd6928 | 1901 | DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n", |
46edb027 | 1902 | pll->name, pll->active, pll->on, |
e2b78267 | 1903 | crtc->base.base.id); |
92f2584a | 1904 | |
cdbd2316 DV |
1905 | if (pll->active++) { |
1906 | WARN_ON(!pll->on); | |
e9d6944e | 1907 | assert_shared_dpll_enabled(dev_priv, pll); |
ee7b9f93 JB |
1908 | return; |
1909 | } | |
f4a091c7 | 1910 | WARN_ON(pll->on); |
ee7b9f93 | 1911 | |
bd2bb1b9 PZ |
1912 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); |
1913 | ||
46edb027 | 1914 | DRM_DEBUG_KMS("enabling %s\n", pll->name); |
e7b903d2 | 1915 | pll->enable(dev_priv, pll); |
ee7b9f93 | 1916 | pll->on = true; |
92f2584a JB |
1917 | } |
1918 | ||
f6daaec2 | 1919 | static void intel_disable_shared_dpll(struct intel_crtc *crtc) |
92f2584a | 1920 | { |
3d13ef2e DL |
1921 | struct drm_device *dev = crtc->base.dev; |
1922 | struct drm_i915_private *dev_priv = dev->dev_private; | |
e2b78267 | 1923 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); |
4c609cb8 | 1924 | |
92f2584a | 1925 | /* PCH only available on ILK+ */ |
80aa9312 JB |
1926 | if (INTEL_INFO(dev)->gen < 5) |
1927 | return; | |
1928 | ||
eddfcbcd ML |
1929 | if (pll == NULL) |
1930 | return; | |
92f2584a | 1931 | |
eddfcbcd | 1932 | if (WARN_ON(!(pll->config.crtc_mask & (1 << drm_crtc_index(&crtc->base))))) |
48da64a8 | 1933 | return; |
7a419866 | 1934 | |
46edb027 DV |
1935 | DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n", |
1936 | pll->name, pll->active, pll->on, | |
e2b78267 | 1937 | crtc->base.base.id); |
7a419866 | 1938 | |
48da64a8 | 1939 | if (WARN_ON(pll->active == 0)) { |
e9d6944e | 1940 | assert_shared_dpll_disabled(dev_priv, pll); |
48da64a8 CW |
1941 | return; |
1942 | } | |
1943 | ||
e9d6944e | 1944 | assert_shared_dpll_enabled(dev_priv, pll); |
f4a091c7 | 1945 | WARN_ON(!pll->on); |
cdbd2316 | 1946 | if (--pll->active) |
7a419866 | 1947 | return; |
ee7b9f93 | 1948 | |
46edb027 | 1949 | DRM_DEBUG_KMS("disabling %s\n", pll->name); |
e7b903d2 | 1950 | pll->disable(dev_priv, pll); |
ee7b9f93 | 1951 | pll->on = false; |
bd2bb1b9 PZ |
1952 | |
1953 | intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS); | |
92f2584a JB |
1954 | } |
1955 | ||
b8a4f404 PZ |
1956 | static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
1957 | enum pipe pipe) | |
040484af | 1958 | { |
23670b32 | 1959 | struct drm_device *dev = dev_priv->dev; |
7c26e5c6 | 1960 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
e2b78267 | 1961 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
f0f59a00 VS |
1962 | i915_reg_t reg; |
1963 | uint32_t val, pipeconf_val; | |
040484af JB |
1964 | |
1965 | /* PCH only available on ILK+ */ | |
55522f37 | 1966 | BUG_ON(!HAS_PCH_SPLIT(dev)); |
040484af JB |
1967 | |
1968 | /* Make sure PCH DPLL is enabled */ | |
e72f9fbf | 1969 | assert_shared_dpll_enabled(dev_priv, |
e9d6944e | 1970 | intel_crtc_to_shared_dpll(intel_crtc)); |
040484af JB |
1971 | |
1972 | /* FDI must be feeding us bits for PCH ports */ | |
1973 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1974 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1975 | ||
23670b32 DV |
1976 | if (HAS_PCH_CPT(dev)) { |
1977 | /* Workaround: Set the timing override bit before enabling the | |
1978 | * pch transcoder. */ | |
1979 | reg = TRANS_CHICKEN2(pipe); | |
1980 | val = I915_READ(reg); | |
1981 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1982 | I915_WRITE(reg, val); | |
59c859d6 | 1983 | } |
23670b32 | 1984 | |
ab9412ba | 1985 | reg = PCH_TRANSCONF(pipe); |
040484af | 1986 | val = I915_READ(reg); |
5f7f726d | 1987 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1988 | |
1989 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1990 | /* | |
c5de7c6f VS |
1991 | * Make the BPC in transcoder be consistent with |
1992 | * that in pipeconf reg. For HDMI we must use 8bpc | |
1993 | * here for both 8bpc and 12bpc. | |
e9bcff5c | 1994 | */ |
dfd07d72 | 1995 | val &= ~PIPECONF_BPC_MASK; |
c5de7c6f VS |
1996 | if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_HDMI)) |
1997 | val |= PIPECONF_8BPC; | |
1998 | else | |
1999 | val |= pipeconf_val & PIPECONF_BPC_MASK; | |
e9bcff5c | 2000 | } |
5f7f726d PZ |
2001 | |
2002 | val &= ~TRANS_INTERLACE_MASK; | |
2003 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 | 2004 | if (HAS_PCH_IBX(dev_priv->dev) && |
409ee761 | 2005 | intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
7c26e5c6 PZ |
2006 | val |= TRANS_LEGACY_INTERLACED_ILK; |
2007 | else | |
2008 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
2009 | else |
2010 | val |= TRANS_PROGRESSIVE; | |
2011 | ||
040484af JB |
2012 | I915_WRITE(reg, val | TRANS_ENABLE); |
2013 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
4bb6f1f3 | 2014 | DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe)); |
040484af JB |
2015 | } |
2016 | ||
8fb033d7 | 2017 | static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
937bb610 | 2018 | enum transcoder cpu_transcoder) |
040484af | 2019 | { |
8fb033d7 | 2020 | u32 val, pipeconf_val; |
8fb033d7 PZ |
2021 | |
2022 | /* PCH only available on ILK+ */ | |
55522f37 | 2023 | BUG_ON(!HAS_PCH_SPLIT(dev_priv->dev)); |
8fb033d7 | 2024 | |
8fb033d7 | 2025 | /* FDI must be feeding us bits for PCH ports */ |
1a240d4d | 2026 | assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder); |
937bb610 | 2027 | assert_fdi_rx_enabled(dev_priv, TRANSCODER_A); |
8fb033d7 | 2028 | |
223a6fdf | 2029 | /* Workaround: set timing override bit. */ |
36c0d0cf | 2030 | val = I915_READ(TRANS_CHICKEN2(PIPE_A)); |
23670b32 | 2031 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; |
36c0d0cf | 2032 | I915_WRITE(TRANS_CHICKEN2(PIPE_A), val); |
223a6fdf | 2033 | |
25f3ef11 | 2034 | val = TRANS_ENABLE; |
937bb610 | 2035 | pipeconf_val = I915_READ(PIPECONF(cpu_transcoder)); |
8fb033d7 | 2036 | |
9a76b1c6 PZ |
2037 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) == |
2038 | PIPECONF_INTERLACED_ILK) | |
a35f2679 | 2039 | val |= TRANS_INTERLACED; |
8fb033d7 PZ |
2040 | else |
2041 | val |= TRANS_PROGRESSIVE; | |
2042 | ||
ab9412ba DV |
2043 | I915_WRITE(LPT_TRANSCONF, val); |
2044 | if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100)) | |
937bb610 | 2045 | DRM_ERROR("Failed to enable PCH transcoder\n"); |
8fb033d7 PZ |
2046 | } |
2047 | ||
b8a4f404 PZ |
2048 | static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv, |
2049 | enum pipe pipe) | |
040484af | 2050 | { |
23670b32 | 2051 | struct drm_device *dev = dev_priv->dev; |
f0f59a00 VS |
2052 | i915_reg_t reg; |
2053 | uint32_t val; | |
040484af JB |
2054 | |
2055 | /* FDI relies on the transcoder */ | |
2056 | assert_fdi_tx_disabled(dev_priv, pipe); | |
2057 | assert_fdi_rx_disabled(dev_priv, pipe); | |
2058 | ||
291906f1 JB |
2059 | /* Ports must be off as well */ |
2060 | assert_pch_ports_disabled(dev_priv, pipe); | |
2061 | ||
ab9412ba | 2062 | reg = PCH_TRANSCONF(pipe); |
040484af JB |
2063 | val = I915_READ(reg); |
2064 | val &= ~TRANS_ENABLE; | |
2065 | I915_WRITE(reg, val); | |
2066 | /* wait for PCH transcoder off, transcoder state */ | |
2067 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4bb6f1f3 | 2068 | DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe)); |
23670b32 | 2069 | |
c465613b | 2070 | if (HAS_PCH_CPT(dev)) { |
23670b32 DV |
2071 | /* Workaround: Clear the timing override chicken bit again. */ |
2072 | reg = TRANS_CHICKEN2(pipe); | |
2073 | val = I915_READ(reg); | |
2074 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; | |
2075 | I915_WRITE(reg, val); | |
2076 | } | |
040484af JB |
2077 | } |
2078 | ||
ab4d966c | 2079 | static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv) |
8fb033d7 | 2080 | { |
8fb033d7 PZ |
2081 | u32 val; |
2082 | ||
ab9412ba | 2083 | val = I915_READ(LPT_TRANSCONF); |
8fb033d7 | 2084 | val &= ~TRANS_ENABLE; |
ab9412ba | 2085 | I915_WRITE(LPT_TRANSCONF, val); |
8fb033d7 | 2086 | /* wait for PCH transcoder off, transcoder state */ |
ab9412ba | 2087 | if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50)) |
8a52fd9f | 2088 | DRM_ERROR("Failed to disable PCH transcoder\n"); |
223a6fdf PZ |
2089 | |
2090 | /* Workaround: clear timing override bit. */ | |
36c0d0cf | 2091 | val = I915_READ(TRANS_CHICKEN2(PIPE_A)); |
23670b32 | 2092 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; |
36c0d0cf | 2093 | I915_WRITE(TRANS_CHICKEN2(PIPE_A), val); |
040484af JB |
2094 | } |
2095 | ||
b24e7179 | 2096 | /** |
309cfea8 | 2097 | * intel_enable_pipe - enable a pipe, asserting requirements |
0372264a | 2098 | * @crtc: crtc responsible for the pipe |
b24e7179 | 2099 | * |
0372264a | 2100 | * Enable @crtc's pipe, making sure that various hardware specific requirements |
b24e7179 | 2101 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. |
b24e7179 | 2102 | */ |
e1fdc473 | 2103 | static void intel_enable_pipe(struct intel_crtc *crtc) |
b24e7179 | 2104 | { |
0372264a PZ |
2105 | struct drm_device *dev = crtc->base.dev; |
2106 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2107 | enum pipe pipe = crtc->pipe; | |
1a70a728 | 2108 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
1a240d4d | 2109 | enum pipe pch_transcoder; |
f0f59a00 | 2110 | i915_reg_t reg; |
b24e7179 JB |
2111 | u32 val; |
2112 | ||
9e2ee2dd VS |
2113 | DRM_DEBUG_KMS("enabling pipe %c\n", pipe_name(pipe)); |
2114 | ||
58c6eaa2 | 2115 | assert_planes_disabled(dev_priv, pipe); |
93ce0ba6 | 2116 | assert_cursor_disabled(dev_priv, pipe); |
58c6eaa2 DV |
2117 | assert_sprites_disabled(dev_priv, pipe); |
2118 | ||
681e5811 | 2119 | if (HAS_PCH_LPT(dev_priv->dev)) |
cc391bbb PZ |
2120 | pch_transcoder = TRANSCODER_A; |
2121 | else | |
2122 | pch_transcoder = pipe; | |
2123 | ||
b24e7179 JB |
2124 | /* |
2125 | * A pipe without a PLL won't actually be able to drive bits from | |
2126 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
2127 | * need the check. | |
2128 | */ | |
50360403 | 2129 | if (HAS_GMCH_DISPLAY(dev_priv->dev)) |
a65347ba | 2130 | if (crtc->config->has_dsi_encoder) |
23538ef1 JN |
2131 | assert_dsi_pll_enabled(dev_priv); |
2132 | else | |
2133 | assert_pll_enabled(dev_priv, pipe); | |
040484af | 2134 | else { |
6e3c9717 | 2135 | if (crtc->config->has_pch_encoder) { |
040484af | 2136 | /* if driving the PCH, we need FDI enabled */ |
cc391bbb | 2137 | assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder); |
1a240d4d DV |
2138 | assert_fdi_tx_pll_enabled(dev_priv, |
2139 | (enum pipe) cpu_transcoder); | |
040484af JB |
2140 | } |
2141 | /* FIXME: assert CPU port conditions for SNB+ */ | |
2142 | } | |
b24e7179 | 2143 | |
702e7a56 | 2144 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 2145 | val = I915_READ(reg); |
7ad25d48 | 2146 | if (val & PIPECONF_ENABLE) { |
b6b5d049 VS |
2147 | WARN_ON(!((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
2148 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))); | |
00d70b15 | 2149 | return; |
7ad25d48 | 2150 | } |
00d70b15 CW |
2151 | |
2152 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
851855d8 | 2153 | POSTING_READ(reg); |
b24e7179 JB |
2154 | } |
2155 | ||
2156 | /** | |
309cfea8 | 2157 | * intel_disable_pipe - disable a pipe, asserting requirements |
575f7ab7 | 2158 | * @crtc: crtc whose pipes is to be disabled |
b24e7179 | 2159 | * |
575f7ab7 VS |
2160 | * Disable the pipe of @crtc, making sure that various hardware |
2161 | * specific requirements are met, if applicable, e.g. plane | |
2162 | * disabled, panel fitter off, etc. | |
b24e7179 JB |
2163 | * |
2164 | * Will wait until the pipe has shut down before returning. | |
2165 | */ | |
575f7ab7 | 2166 | static void intel_disable_pipe(struct intel_crtc *crtc) |
b24e7179 | 2167 | { |
575f7ab7 | 2168 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; |
6e3c9717 | 2169 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
575f7ab7 | 2170 | enum pipe pipe = crtc->pipe; |
f0f59a00 | 2171 | i915_reg_t reg; |
b24e7179 JB |
2172 | u32 val; |
2173 | ||
9e2ee2dd VS |
2174 | DRM_DEBUG_KMS("disabling pipe %c\n", pipe_name(pipe)); |
2175 | ||
b24e7179 JB |
2176 | /* |
2177 | * Make sure planes won't keep trying to pump pixels to us, | |
2178 | * or we might hang the display. | |
2179 | */ | |
2180 | assert_planes_disabled(dev_priv, pipe); | |
93ce0ba6 | 2181 | assert_cursor_disabled(dev_priv, pipe); |
19332d7a | 2182 | assert_sprites_disabled(dev_priv, pipe); |
b24e7179 | 2183 | |
702e7a56 | 2184 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 2185 | val = I915_READ(reg); |
00d70b15 CW |
2186 | if ((val & PIPECONF_ENABLE) == 0) |
2187 | return; | |
2188 | ||
67adc644 VS |
2189 | /* |
2190 | * Double wide has implications for planes | |
2191 | * so best keep it disabled when not needed. | |
2192 | */ | |
6e3c9717 | 2193 | if (crtc->config->double_wide) |
67adc644 VS |
2194 | val &= ~PIPECONF_DOUBLE_WIDE; |
2195 | ||
2196 | /* Don't disable pipe or pipe PLLs if needed */ | |
b6b5d049 VS |
2197 | if (!(pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) && |
2198 | !(pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
67adc644 VS |
2199 | val &= ~PIPECONF_ENABLE; |
2200 | ||
2201 | I915_WRITE(reg, val); | |
2202 | if ((val & PIPECONF_ENABLE) == 0) | |
2203 | intel_wait_for_pipe_off(crtc); | |
b24e7179 JB |
2204 | } |
2205 | ||
693db184 CW |
2206 | static bool need_vtd_wa(struct drm_device *dev) |
2207 | { | |
2208 | #ifdef CONFIG_INTEL_IOMMU | |
2209 | if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped) | |
2210 | return true; | |
2211 | #endif | |
2212 | return false; | |
2213 | } | |
2214 | ||
50470bb0 | 2215 | unsigned int |
6761dd31 | 2216 | intel_tile_height(struct drm_device *dev, uint32_t pixel_format, |
fe47ea0c | 2217 | uint64_t fb_format_modifier, unsigned int plane) |
a57ce0b2 | 2218 | { |
6761dd31 TU |
2219 | unsigned int tile_height; |
2220 | uint32_t pixel_bytes; | |
a57ce0b2 | 2221 | |
b5d0e9bf DL |
2222 | switch (fb_format_modifier) { |
2223 | case DRM_FORMAT_MOD_NONE: | |
2224 | tile_height = 1; | |
2225 | break; | |
2226 | case I915_FORMAT_MOD_X_TILED: | |
2227 | tile_height = IS_GEN2(dev) ? 16 : 8; | |
2228 | break; | |
2229 | case I915_FORMAT_MOD_Y_TILED: | |
2230 | tile_height = 32; | |
2231 | break; | |
2232 | case I915_FORMAT_MOD_Yf_TILED: | |
fe47ea0c | 2233 | pixel_bytes = drm_format_plane_cpp(pixel_format, plane); |
6761dd31 | 2234 | switch (pixel_bytes) { |
b5d0e9bf | 2235 | default: |
6761dd31 | 2236 | case 1: |
b5d0e9bf DL |
2237 | tile_height = 64; |
2238 | break; | |
6761dd31 TU |
2239 | case 2: |
2240 | case 4: | |
b5d0e9bf DL |
2241 | tile_height = 32; |
2242 | break; | |
6761dd31 | 2243 | case 8: |
b5d0e9bf DL |
2244 | tile_height = 16; |
2245 | break; | |
6761dd31 | 2246 | case 16: |
b5d0e9bf DL |
2247 | WARN_ONCE(1, |
2248 | "128-bit pixels are not supported for display!"); | |
2249 | tile_height = 16; | |
2250 | break; | |
2251 | } | |
2252 | break; | |
2253 | default: | |
2254 | MISSING_CASE(fb_format_modifier); | |
2255 | tile_height = 1; | |
2256 | break; | |
2257 | } | |
091df6cb | 2258 | |
6761dd31 TU |
2259 | return tile_height; |
2260 | } | |
2261 | ||
2262 | unsigned int | |
2263 | intel_fb_align_height(struct drm_device *dev, unsigned int height, | |
2264 | uint32_t pixel_format, uint64_t fb_format_modifier) | |
2265 | { | |
2266 | return ALIGN(height, intel_tile_height(dev, pixel_format, | |
fe47ea0c | 2267 | fb_format_modifier, 0)); |
a57ce0b2 JB |
2268 | } |
2269 | ||
75c82a53 | 2270 | static void |
f64b98cd TU |
2271 | intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb, |
2272 | const struct drm_plane_state *plane_state) | |
2273 | { | |
a6d09186 | 2274 | struct intel_rotation_info *info = &view->params.rotation_info; |
84fe03f7 | 2275 | unsigned int tile_height, tile_pitch; |
50470bb0 | 2276 | |
f64b98cd TU |
2277 | *view = i915_ggtt_view_normal; |
2278 | ||
50470bb0 | 2279 | if (!plane_state) |
75c82a53 | 2280 | return; |
50470bb0 | 2281 | |
121920fa | 2282 | if (!intel_rotation_90_or_270(plane_state->rotation)) |
75c82a53 | 2283 | return; |
50470bb0 | 2284 | |
9abc4648 | 2285 | *view = i915_ggtt_view_rotated; |
50470bb0 TU |
2286 | |
2287 | info->height = fb->height; | |
2288 | info->pixel_format = fb->pixel_format; | |
2289 | info->pitch = fb->pitches[0]; | |
89e3e142 | 2290 | info->uv_offset = fb->offsets[1]; |
50470bb0 TU |
2291 | info->fb_modifier = fb->modifier[0]; |
2292 | ||
84fe03f7 | 2293 | tile_height = intel_tile_height(fb->dev, fb->pixel_format, |
fe47ea0c | 2294 | fb->modifier[0], 0); |
84fe03f7 TU |
2295 | tile_pitch = PAGE_SIZE / tile_height; |
2296 | info->width_pages = DIV_ROUND_UP(fb->pitches[0], tile_pitch); | |
2297 | info->height_pages = DIV_ROUND_UP(fb->height, tile_height); | |
2298 | info->size = info->width_pages * info->height_pages * PAGE_SIZE; | |
2299 | ||
89e3e142 TU |
2300 | if (info->pixel_format == DRM_FORMAT_NV12) { |
2301 | tile_height = intel_tile_height(fb->dev, fb->pixel_format, | |
2302 | fb->modifier[0], 1); | |
2303 | tile_pitch = PAGE_SIZE / tile_height; | |
2304 | info->width_pages_uv = DIV_ROUND_UP(fb->pitches[0], tile_pitch); | |
2305 | info->height_pages_uv = DIV_ROUND_UP(fb->height / 2, | |
2306 | tile_height); | |
2307 | info->size_uv = info->width_pages_uv * info->height_pages_uv * | |
2308 | PAGE_SIZE; | |
2309 | } | |
f64b98cd TU |
2310 | } |
2311 | ||
4e9a86b6 VS |
2312 | static unsigned int intel_linear_alignment(struct drm_i915_private *dev_priv) |
2313 | { | |
2314 | if (INTEL_INFO(dev_priv)->gen >= 9) | |
2315 | return 256 * 1024; | |
985b8bb4 | 2316 | else if (IS_BROADWATER(dev_priv) || IS_CRESTLINE(dev_priv) || |
666a4537 | 2317 | IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) |
4e9a86b6 VS |
2318 | return 128 * 1024; |
2319 | else if (INTEL_INFO(dev_priv)->gen >= 4) | |
2320 | return 4 * 1024; | |
2321 | else | |
44c5905e | 2322 | return 0; |
4e9a86b6 VS |
2323 | } |
2324 | ||
127bd2ac | 2325 | int |
850c4cdc TU |
2326 | intel_pin_and_fence_fb_obj(struct drm_plane *plane, |
2327 | struct drm_framebuffer *fb, | |
7580d774 | 2328 | const struct drm_plane_state *plane_state) |
6b95a207 | 2329 | { |
850c4cdc | 2330 | struct drm_device *dev = fb->dev; |
ce453d81 | 2331 | struct drm_i915_private *dev_priv = dev->dev_private; |
850c4cdc | 2332 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
f64b98cd | 2333 | struct i915_ggtt_view view; |
6b95a207 KH |
2334 | u32 alignment; |
2335 | int ret; | |
2336 | ||
ebcdd39e MR |
2337 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
2338 | ||
7b911adc TU |
2339 | switch (fb->modifier[0]) { |
2340 | case DRM_FORMAT_MOD_NONE: | |
4e9a86b6 | 2341 | alignment = intel_linear_alignment(dev_priv); |
6b95a207 | 2342 | break; |
7b911adc | 2343 | case I915_FORMAT_MOD_X_TILED: |
1fada4cc DL |
2344 | if (INTEL_INFO(dev)->gen >= 9) |
2345 | alignment = 256 * 1024; | |
2346 | else { | |
2347 | /* pin() will align the object as required by fence */ | |
2348 | alignment = 0; | |
2349 | } | |
6b95a207 | 2350 | break; |
7b911adc | 2351 | case I915_FORMAT_MOD_Y_TILED: |
1327b9a1 DL |
2352 | case I915_FORMAT_MOD_Yf_TILED: |
2353 | if (WARN_ONCE(INTEL_INFO(dev)->gen < 9, | |
2354 | "Y tiling bo slipped through, driver bug!\n")) | |
2355 | return -EINVAL; | |
2356 | alignment = 1 * 1024 * 1024; | |
2357 | break; | |
6b95a207 | 2358 | default: |
7b911adc TU |
2359 | MISSING_CASE(fb->modifier[0]); |
2360 | return -EINVAL; | |
6b95a207 KH |
2361 | } |
2362 | ||
75c82a53 | 2363 | intel_fill_fb_ggtt_view(&view, fb, plane_state); |
f64b98cd | 2364 | |
693db184 CW |
2365 | /* Note that the w/a also requires 64 PTE of padding following the |
2366 | * bo. We currently fill all unused PTE with the shadow page and so | |
2367 | * we should always have valid PTE following the scanout preventing | |
2368 | * the VT-d warning. | |
2369 | */ | |
2370 | if (need_vtd_wa(dev) && alignment < 256 * 1024) | |
2371 | alignment = 256 * 1024; | |
2372 | ||
d6dd6843 PZ |
2373 | /* |
2374 | * Global gtt pte registers are special registers which actually forward | |
2375 | * writes to a chunk of system memory. Which means that there is no risk | |
2376 | * that the register values disappear as soon as we call | |
2377 | * intel_runtime_pm_put(), so it is correct to wrap only the | |
2378 | * pin/unpin/fence and not more. | |
2379 | */ | |
2380 | intel_runtime_pm_get(dev_priv); | |
2381 | ||
7580d774 ML |
2382 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, |
2383 | &view); | |
48b956c5 | 2384 | if (ret) |
b26a6b35 | 2385 | goto err_pm; |
6b95a207 KH |
2386 | |
2387 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
2388 | * fence, whereas 965+ only requires a fence if using | |
2389 | * framebuffer compression. For simplicity, we always install | |
2390 | * a fence as the cost is not that onerous. | |
2391 | */ | |
9807216f VK |
2392 | if (view.type == I915_GGTT_VIEW_NORMAL) { |
2393 | ret = i915_gem_object_get_fence(obj); | |
2394 | if (ret == -EDEADLK) { | |
2395 | /* | |
2396 | * -EDEADLK means there are no free fences | |
2397 | * no pending flips. | |
2398 | * | |
2399 | * This is propagated to atomic, but it uses | |
2400 | * -EDEADLK to force a locking recovery, so | |
2401 | * change the returned error to -EBUSY. | |
2402 | */ | |
2403 | ret = -EBUSY; | |
2404 | goto err_unpin; | |
2405 | } else if (ret) | |
2406 | goto err_unpin; | |
1690e1eb | 2407 | |
9807216f VK |
2408 | i915_gem_object_pin_fence(obj); |
2409 | } | |
6b95a207 | 2410 | |
d6dd6843 | 2411 | intel_runtime_pm_put(dev_priv); |
6b95a207 | 2412 | return 0; |
48b956c5 CW |
2413 | |
2414 | err_unpin: | |
f64b98cd | 2415 | i915_gem_object_unpin_from_display_plane(obj, &view); |
b26a6b35 | 2416 | err_pm: |
d6dd6843 | 2417 | intel_runtime_pm_put(dev_priv); |
48b956c5 | 2418 | return ret; |
6b95a207 KH |
2419 | } |
2420 | ||
82bc3b2d TU |
2421 | static void intel_unpin_fb_obj(struct drm_framebuffer *fb, |
2422 | const struct drm_plane_state *plane_state) | |
1690e1eb | 2423 | { |
82bc3b2d | 2424 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
f64b98cd | 2425 | struct i915_ggtt_view view; |
82bc3b2d | 2426 | |
ebcdd39e MR |
2427 | WARN_ON(!mutex_is_locked(&obj->base.dev->struct_mutex)); |
2428 | ||
75c82a53 | 2429 | intel_fill_fb_ggtt_view(&view, fb, plane_state); |
f64b98cd | 2430 | |
9807216f VK |
2431 | if (view.type == I915_GGTT_VIEW_NORMAL) |
2432 | i915_gem_object_unpin_fence(obj); | |
2433 | ||
f64b98cd | 2434 | i915_gem_object_unpin_from_display_plane(obj, &view); |
1690e1eb CW |
2435 | } |
2436 | ||
c2c75131 DV |
2437 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
2438 | * is assumed to be a power-of-two. */ | |
4e9a86b6 VS |
2439 | unsigned long intel_gen4_compute_page_offset(struct drm_i915_private *dev_priv, |
2440 | int *x, int *y, | |
bc752862 CW |
2441 | unsigned int tiling_mode, |
2442 | unsigned int cpp, | |
2443 | unsigned int pitch) | |
c2c75131 | 2444 | { |
bc752862 CW |
2445 | if (tiling_mode != I915_TILING_NONE) { |
2446 | unsigned int tile_rows, tiles; | |
c2c75131 | 2447 | |
bc752862 CW |
2448 | tile_rows = *y / 8; |
2449 | *y %= 8; | |
c2c75131 | 2450 | |
bc752862 CW |
2451 | tiles = *x / (512/cpp); |
2452 | *x %= 512/cpp; | |
2453 | ||
2454 | return tile_rows * pitch * 8 + tiles * 4096; | |
2455 | } else { | |
4e9a86b6 | 2456 | unsigned int alignment = intel_linear_alignment(dev_priv) - 1; |
bc752862 CW |
2457 | unsigned int offset; |
2458 | ||
2459 | offset = *y * pitch + *x * cpp; | |
4e9a86b6 VS |
2460 | *y = (offset & alignment) / pitch; |
2461 | *x = ((offset & alignment) - *y * pitch) / cpp; | |
2462 | return offset & ~alignment; | |
bc752862 | 2463 | } |
c2c75131 DV |
2464 | } |
2465 | ||
b35d63fa | 2466 | static int i9xx_format_to_fourcc(int format) |
46f297fb JB |
2467 | { |
2468 | switch (format) { | |
2469 | case DISPPLANE_8BPP: | |
2470 | return DRM_FORMAT_C8; | |
2471 | case DISPPLANE_BGRX555: | |
2472 | return DRM_FORMAT_XRGB1555; | |
2473 | case DISPPLANE_BGRX565: | |
2474 | return DRM_FORMAT_RGB565; | |
2475 | default: | |
2476 | case DISPPLANE_BGRX888: | |
2477 | return DRM_FORMAT_XRGB8888; | |
2478 | case DISPPLANE_RGBX888: | |
2479 | return DRM_FORMAT_XBGR8888; | |
2480 | case DISPPLANE_BGRX101010: | |
2481 | return DRM_FORMAT_XRGB2101010; | |
2482 | case DISPPLANE_RGBX101010: | |
2483 | return DRM_FORMAT_XBGR2101010; | |
2484 | } | |
2485 | } | |
2486 | ||
bc8d7dff DL |
2487 | static int skl_format_to_fourcc(int format, bool rgb_order, bool alpha) |
2488 | { | |
2489 | switch (format) { | |
2490 | case PLANE_CTL_FORMAT_RGB_565: | |
2491 | return DRM_FORMAT_RGB565; | |
2492 | default: | |
2493 | case PLANE_CTL_FORMAT_XRGB_8888: | |
2494 | if (rgb_order) { | |
2495 | if (alpha) | |
2496 | return DRM_FORMAT_ABGR8888; | |
2497 | else | |
2498 | return DRM_FORMAT_XBGR8888; | |
2499 | } else { | |
2500 | if (alpha) | |
2501 | return DRM_FORMAT_ARGB8888; | |
2502 | else | |
2503 | return DRM_FORMAT_XRGB8888; | |
2504 | } | |
2505 | case PLANE_CTL_FORMAT_XRGB_2101010: | |
2506 | if (rgb_order) | |
2507 | return DRM_FORMAT_XBGR2101010; | |
2508 | else | |
2509 | return DRM_FORMAT_XRGB2101010; | |
2510 | } | |
2511 | } | |
2512 | ||
5724dbd1 | 2513 | static bool |
f6936e29 DV |
2514 | intel_alloc_initial_plane_obj(struct intel_crtc *crtc, |
2515 | struct intel_initial_plane_config *plane_config) | |
46f297fb JB |
2516 | { |
2517 | struct drm_device *dev = crtc->base.dev; | |
3badb49f | 2518 | struct drm_i915_private *dev_priv = to_i915(dev); |
46f297fb JB |
2519 | struct drm_i915_gem_object *obj = NULL; |
2520 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; | |
2d14030b | 2521 | struct drm_framebuffer *fb = &plane_config->fb->base; |
f37b5c2b DV |
2522 | u32 base_aligned = round_down(plane_config->base, PAGE_SIZE); |
2523 | u32 size_aligned = round_up(plane_config->base + plane_config->size, | |
2524 | PAGE_SIZE); | |
2525 | ||
2526 | size_aligned -= base_aligned; | |
46f297fb | 2527 | |
ff2652ea CW |
2528 | if (plane_config->size == 0) |
2529 | return false; | |
2530 | ||
3badb49f PZ |
2531 | /* If the FB is too big, just don't use it since fbdev is not very |
2532 | * important and we should probably use that space with FBC or other | |
2533 | * features. */ | |
2534 | if (size_aligned * 2 > dev_priv->gtt.stolen_usable_size) | |
2535 | return false; | |
2536 | ||
f37b5c2b DV |
2537 | obj = i915_gem_object_create_stolen_for_preallocated(dev, |
2538 | base_aligned, | |
2539 | base_aligned, | |
2540 | size_aligned); | |
46f297fb | 2541 | if (!obj) |
484b41dd | 2542 | return false; |
46f297fb | 2543 | |
49af449b DL |
2544 | obj->tiling_mode = plane_config->tiling; |
2545 | if (obj->tiling_mode == I915_TILING_X) | |
6bf129df | 2546 | obj->stride = fb->pitches[0]; |
46f297fb | 2547 | |
6bf129df DL |
2548 | mode_cmd.pixel_format = fb->pixel_format; |
2549 | mode_cmd.width = fb->width; | |
2550 | mode_cmd.height = fb->height; | |
2551 | mode_cmd.pitches[0] = fb->pitches[0]; | |
18c5247e DV |
2552 | mode_cmd.modifier[0] = fb->modifier[0]; |
2553 | mode_cmd.flags = DRM_MODE_FB_MODIFIERS; | |
46f297fb JB |
2554 | |
2555 | mutex_lock(&dev->struct_mutex); | |
6bf129df | 2556 | if (intel_framebuffer_init(dev, to_intel_framebuffer(fb), |
484b41dd | 2557 | &mode_cmd, obj)) { |
46f297fb JB |
2558 | DRM_DEBUG_KMS("intel fb init failed\n"); |
2559 | goto out_unref_obj; | |
2560 | } | |
46f297fb | 2561 | mutex_unlock(&dev->struct_mutex); |
484b41dd | 2562 | |
f6936e29 | 2563 | DRM_DEBUG_KMS("initial plane fb obj %p\n", obj); |
484b41dd | 2564 | return true; |
46f297fb JB |
2565 | |
2566 | out_unref_obj: | |
2567 | drm_gem_object_unreference(&obj->base); | |
2568 | mutex_unlock(&dev->struct_mutex); | |
484b41dd JB |
2569 | return false; |
2570 | } | |
2571 | ||
afd65eb4 MR |
2572 | /* Update plane->state->fb to match plane->fb after driver-internal updates */ |
2573 | static void | |
2574 | update_state_fb(struct drm_plane *plane) | |
2575 | { | |
2576 | if (plane->fb == plane->state->fb) | |
2577 | return; | |
2578 | ||
2579 | if (plane->state->fb) | |
2580 | drm_framebuffer_unreference(plane->state->fb); | |
2581 | plane->state->fb = plane->fb; | |
2582 | if (plane->state->fb) | |
2583 | drm_framebuffer_reference(plane->state->fb); | |
2584 | } | |
2585 | ||
5724dbd1 | 2586 | static void |
f6936e29 DV |
2587 | intel_find_initial_plane_obj(struct intel_crtc *intel_crtc, |
2588 | struct intel_initial_plane_config *plane_config) | |
484b41dd JB |
2589 | { |
2590 | struct drm_device *dev = intel_crtc->base.dev; | |
d9ceb816 | 2591 | struct drm_i915_private *dev_priv = dev->dev_private; |
484b41dd JB |
2592 | struct drm_crtc *c; |
2593 | struct intel_crtc *i; | |
2ff8fde1 | 2594 | struct drm_i915_gem_object *obj; |
88595ac9 | 2595 | struct drm_plane *primary = intel_crtc->base.primary; |
be5651f2 | 2596 | struct drm_plane_state *plane_state = primary->state; |
200757f5 MR |
2597 | struct drm_crtc_state *crtc_state = intel_crtc->base.state; |
2598 | struct intel_plane *intel_plane = to_intel_plane(primary); | |
0a8d8a86 MR |
2599 | struct intel_plane_state *intel_state = |
2600 | to_intel_plane_state(plane_state); | |
88595ac9 | 2601 | struct drm_framebuffer *fb; |
484b41dd | 2602 | |
2d14030b | 2603 | if (!plane_config->fb) |
484b41dd JB |
2604 | return; |
2605 | ||
f6936e29 | 2606 | if (intel_alloc_initial_plane_obj(intel_crtc, plane_config)) { |
88595ac9 DV |
2607 | fb = &plane_config->fb->base; |
2608 | goto valid_fb; | |
f55548b5 | 2609 | } |
484b41dd | 2610 | |
2d14030b | 2611 | kfree(plane_config->fb); |
484b41dd JB |
2612 | |
2613 | /* | |
2614 | * Failed to alloc the obj, check to see if we should share | |
2615 | * an fb with another CRTC instead | |
2616 | */ | |
70e1e0ec | 2617 | for_each_crtc(dev, c) { |
484b41dd JB |
2618 | i = to_intel_crtc(c); |
2619 | ||
2620 | if (c == &intel_crtc->base) | |
2621 | continue; | |
2622 | ||
2ff8fde1 MR |
2623 | if (!i->active) |
2624 | continue; | |
2625 | ||
88595ac9 DV |
2626 | fb = c->primary->fb; |
2627 | if (!fb) | |
484b41dd JB |
2628 | continue; |
2629 | ||
88595ac9 | 2630 | obj = intel_fb_obj(fb); |
2ff8fde1 | 2631 | if (i915_gem_obj_ggtt_offset(obj) == plane_config->base) { |
88595ac9 DV |
2632 | drm_framebuffer_reference(fb); |
2633 | goto valid_fb; | |
484b41dd JB |
2634 | } |
2635 | } | |
88595ac9 | 2636 | |
200757f5 MR |
2637 | /* |
2638 | * We've failed to reconstruct the BIOS FB. Current display state | |
2639 | * indicates that the primary plane is visible, but has a NULL FB, | |
2640 | * which will lead to problems later if we don't fix it up. The | |
2641 | * simplest solution is to just disable the primary plane now and | |
2642 | * pretend the BIOS never had it enabled. | |
2643 | */ | |
2644 | to_intel_plane_state(plane_state)->visible = false; | |
2645 | crtc_state->plane_mask &= ~(1 << drm_plane_index(primary)); | |
2646 | intel_pre_disable_primary(&intel_crtc->base); | |
2647 | intel_plane->disable_plane(primary, &intel_crtc->base); | |
2648 | ||
88595ac9 DV |
2649 | return; |
2650 | ||
2651 | valid_fb: | |
f44e2659 VS |
2652 | plane_state->src_x = 0; |
2653 | plane_state->src_y = 0; | |
be5651f2 ML |
2654 | plane_state->src_w = fb->width << 16; |
2655 | plane_state->src_h = fb->height << 16; | |
2656 | ||
f44e2659 VS |
2657 | plane_state->crtc_x = 0; |
2658 | plane_state->crtc_y = 0; | |
be5651f2 ML |
2659 | plane_state->crtc_w = fb->width; |
2660 | plane_state->crtc_h = fb->height; | |
2661 | ||
0a8d8a86 MR |
2662 | intel_state->src.x1 = plane_state->src_x; |
2663 | intel_state->src.y1 = plane_state->src_y; | |
2664 | intel_state->src.x2 = plane_state->src_x + plane_state->src_w; | |
2665 | intel_state->src.y2 = plane_state->src_y + plane_state->src_h; | |
2666 | intel_state->dst.x1 = plane_state->crtc_x; | |
2667 | intel_state->dst.y1 = plane_state->crtc_y; | |
2668 | intel_state->dst.x2 = plane_state->crtc_x + plane_state->crtc_w; | |
2669 | intel_state->dst.y2 = plane_state->crtc_y + plane_state->crtc_h; | |
2670 | ||
88595ac9 DV |
2671 | obj = intel_fb_obj(fb); |
2672 | if (obj->tiling_mode != I915_TILING_NONE) | |
2673 | dev_priv->preserve_bios_swizzle = true; | |
2674 | ||
be5651f2 ML |
2675 | drm_framebuffer_reference(fb); |
2676 | primary->fb = primary->state->fb = fb; | |
36750f28 | 2677 | primary->crtc = primary->state->crtc = &intel_crtc->base; |
36750f28 | 2678 | intel_crtc->base.state->plane_mask |= (1 << drm_plane_index(primary)); |
a9ff8714 | 2679 | obj->frontbuffer_bits |= to_intel_plane(primary)->frontbuffer_bit; |
46f297fb JB |
2680 | } |
2681 | ||
a8d201af ML |
2682 | static void i9xx_update_primary_plane(struct drm_plane *primary, |
2683 | const struct intel_crtc_state *crtc_state, | |
2684 | const struct intel_plane_state *plane_state) | |
81255565 | 2685 | { |
a8d201af | 2686 | struct drm_device *dev = primary->dev; |
81255565 | 2687 | struct drm_i915_private *dev_priv = dev->dev_private; |
a8d201af ML |
2688 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); |
2689 | struct drm_framebuffer *fb = plane_state->base.fb; | |
2690 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
81255565 | 2691 | int plane = intel_crtc->plane; |
e506a0c6 | 2692 | unsigned long linear_offset; |
a8d201af ML |
2693 | int x = plane_state->src.x1 >> 16; |
2694 | int y = plane_state->src.y1 >> 16; | |
81255565 | 2695 | u32 dspcntr; |
f0f59a00 | 2696 | i915_reg_t reg = DSPCNTR(plane); |
48404c1e | 2697 | int pixel_size; |
f45651ba | 2698 | |
c9ba6fad VS |
2699 | pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); |
2700 | ||
f45651ba VS |
2701 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
2702 | ||
fdd508a6 | 2703 | dspcntr |= DISPLAY_PLANE_ENABLE; |
f45651ba VS |
2704 | |
2705 | if (INTEL_INFO(dev)->gen < 4) { | |
2706 | if (intel_crtc->pipe == PIPE_B) | |
2707 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
2708 | ||
2709 | /* pipesrc and dspsize control the size that is scaled from, | |
2710 | * which should always be the user's requested size. | |
2711 | */ | |
2712 | I915_WRITE(DSPSIZE(plane), | |
a8d201af ML |
2713 | ((crtc_state->pipe_src_h - 1) << 16) | |
2714 | (crtc_state->pipe_src_w - 1)); | |
f45651ba | 2715 | I915_WRITE(DSPPOS(plane), 0); |
c14b0485 VS |
2716 | } else if (IS_CHERRYVIEW(dev) && plane == PLANE_B) { |
2717 | I915_WRITE(PRIMSIZE(plane), | |
a8d201af ML |
2718 | ((crtc_state->pipe_src_h - 1) << 16) | |
2719 | (crtc_state->pipe_src_w - 1)); | |
c14b0485 VS |
2720 | I915_WRITE(PRIMPOS(plane), 0); |
2721 | I915_WRITE(PRIMCNSTALPHA(plane), 0); | |
f45651ba | 2722 | } |
81255565 | 2723 | |
57779d06 VS |
2724 | switch (fb->pixel_format) { |
2725 | case DRM_FORMAT_C8: | |
81255565 JB |
2726 | dspcntr |= DISPPLANE_8BPP; |
2727 | break; | |
57779d06 | 2728 | case DRM_FORMAT_XRGB1555: |
57779d06 | 2729 | dspcntr |= DISPPLANE_BGRX555; |
81255565 | 2730 | break; |
57779d06 VS |
2731 | case DRM_FORMAT_RGB565: |
2732 | dspcntr |= DISPPLANE_BGRX565; | |
2733 | break; | |
2734 | case DRM_FORMAT_XRGB8888: | |
57779d06 VS |
2735 | dspcntr |= DISPPLANE_BGRX888; |
2736 | break; | |
2737 | case DRM_FORMAT_XBGR8888: | |
57779d06 VS |
2738 | dspcntr |= DISPPLANE_RGBX888; |
2739 | break; | |
2740 | case DRM_FORMAT_XRGB2101010: | |
57779d06 VS |
2741 | dspcntr |= DISPPLANE_BGRX101010; |
2742 | break; | |
2743 | case DRM_FORMAT_XBGR2101010: | |
57779d06 | 2744 | dspcntr |= DISPPLANE_RGBX101010; |
81255565 JB |
2745 | break; |
2746 | default: | |
baba133a | 2747 | BUG(); |
81255565 | 2748 | } |
57779d06 | 2749 | |
f45651ba VS |
2750 | if (INTEL_INFO(dev)->gen >= 4 && |
2751 | obj->tiling_mode != I915_TILING_NONE) | |
2752 | dspcntr |= DISPPLANE_TILED; | |
81255565 | 2753 | |
de1aa629 VS |
2754 | if (IS_G4X(dev)) |
2755 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2756 | ||
b9897127 | 2757 | linear_offset = y * fb->pitches[0] + x * pixel_size; |
81255565 | 2758 | |
c2c75131 DV |
2759 | if (INTEL_INFO(dev)->gen >= 4) { |
2760 | intel_crtc->dspaddr_offset = | |
4e9a86b6 VS |
2761 | intel_gen4_compute_page_offset(dev_priv, |
2762 | &x, &y, obj->tiling_mode, | |
b9897127 | 2763 | pixel_size, |
bc752862 | 2764 | fb->pitches[0]); |
c2c75131 DV |
2765 | linear_offset -= intel_crtc->dspaddr_offset; |
2766 | } else { | |
e506a0c6 | 2767 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 2768 | } |
e506a0c6 | 2769 | |
a8d201af | 2770 | if (plane_state->base.rotation == BIT(DRM_ROTATE_180)) { |
48404c1e SJ |
2771 | dspcntr |= DISPPLANE_ROTATE_180; |
2772 | ||
a8d201af ML |
2773 | x += (crtc_state->pipe_src_w - 1); |
2774 | y += (crtc_state->pipe_src_h - 1); | |
48404c1e SJ |
2775 | |
2776 | /* Finding the last pixel of the last line of the display | |
2777 | data and adding to linear_offset*/ | |
2778 | linear_offset += | |
a8d201af ML |
2779 | (crtc_state->pipe_src_h - 1) * fb->pitches[0] + |
2780 | (crtc_state->pipe_src_w - 1) * pixel_size; | |
48404c1e SJ |
2781 | } |
2782 | ||
2db3366b PZ |
2783 | intel_crtc->adjusted_x = x; |
2784 | intel_crtc->adjusted_y = y; | |
2785 | ||
48404c1e SJ |
2786 | I915_WRITE(reg, dspcntr); |
2787 | ||
01f2c773 | 2788 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 2789 | if (INTEL_INFO(dev)->gen >= 4) { |
85ba7b7d DV |
2790 | I915_WRITE(DSPSURF(plane), |
2791 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset); | |
5eddb70b | 2792 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2793 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 2794 | } else |
f343c5f6 | 2795 | I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset); |
5eddb70b | 2796 | POSTING_READ(reg); |
17638cd6 JB |
2797 | } |
2798 | ||
a8d201af ML |
2799 | static void i9xx_disable_primary_plane(struct drm_plane *primary, |
2800 | struct drm_crtc *crtc) | |
17638cd6 JB |
2801 | { |
2802 | struct drm_device *dev = crtc->dev; | |
2803 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2804 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
17638cd6 | 2805 | int plane = intel_crtc->plane; |
f45651ba | 2806 | |
a8d201af ML |
2807 | I915_WRITE(DSPCNTR(plane), 0); |
2808 | if (INTEL_INFO(dev_priv)->gen >= 4) | |
fdd508a6 | 2809 | I915_WRITE(DSPSURF(plane), 0); |
a8d201af ML |
2810 | else |
2811 | I915_WRITE(DSPADDR(plane), 0); | |
2812 | POSTING_READ(DSPCNTR(plane)); | |
2813 | } | |
c9ba6fad | 2814 | |
a8d201af ML |
2815 | static void ironlake_update_primary_plane(struct drm_plane *primary, |
2816 | const struct intel_crtc_state *crtc_state, | |
2817 | const struct intel_plane_state *plane_state) | |
2818 | { | |
2819 | struct drm_device *dev = primary->dev; | |
2820 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2821 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); | |
2822 | struct drm_framebuffer *fb = plane_state->base.fb; | |
2823 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
2824 | int plane = intel_crtc->plane; | |
2825 | unsigned long linear_offset; | |
2826 | u32 dspcntr; | |
2827 | i915_reg_t reg = DSPCNTR(plane); | |
2828 | int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); | |
2829 | int x = plane_state->src.x1 >> 16; | |
2830 | int y = plane_state->src.y1 >> 16; | |
c9ba6fad | 2831 | |
f45651ba | 2832 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
fdd508a6 | 2833 | dspcntr |= DISPLAY_PLANE_ENABLE; |
f45651ba VS |
2834 | |
2835 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) | |
2836 | dspcntr |= DISPPLANE_PIPE_CSC_ENABLE; | |
17638cd6 | 2837 | |
57779d06 VS |
2838 | switch (fb->pixel_format) { |
2839 | case DRM_FORMAT_C8: | |
17638cd6 JB |
2840 | dspcntr |= DISPPLANE_8BPP; |
2841 | break; | |
57779d06 VS |
2842 | case DRM_FORMAT_RGB565: |
2843 | dspcntr |= DISPPLANE_BGRX565; | |
17638cd6 | 2844 | break; |
57779d06 | 2845 | case DRM_FORMAT_XRGB8888: |
57779d06 VS |
2846 | dspcntr |= DISPPLANE_BGRX888; |
2847 | break; | |
2848 | case DRM_FORMAT_XBGR8888: | |
57779d06 VS |
2849 | dspcntr |= DISPPLANE_RGBX888; |
2850 | break; | |
2851 | case DRM_FORMAT_XRGB2101010: | |
57779d06 VS |
2852 | dspcntr |= DISPPLANE_BGRX101010; |
2853 | break; | |
2854 | case DRM_FORMAT_XBGR2101010: | |
57779d06 | 2855 | dspcntr |= DISPPLANE_RGBX101010; |
17638cd6 JB |
2856 | break; |
2857 | default: | |
baba133a | 2858 | BUG(); |
17638cd6 JB |
2859 | } |
2860 | ||
2861 | if (obj->tiling_mode != I915_TILING_NONE) | |
2862 | dspcntr |= DISPPLANE_TILED; | |
17638cd6 | 2863 | |
f45651ba | 2864 | if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) |
1f5d76db | 2865 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; |
17638cd6 | 2866 | |
b9897127 | 2867 | linear_offset = y * fb->pitches[0] + x * pixel_size; |
c2c75131 | 2868 | intel_crtc->dspaddr_offset = |
4e9a86b6 VS |
2869 | intel_gen4_compute_page_offset(dev_priv, |
2870 | &x, &y, obj->tiling_mode, | |
b9897127 | 2871 | pixel_size, |
bc752862 | 2872 | fb->pitches[0]); |
c2c75131 | 2873 | linear_offset -= intel_crtc->dspaddr_offset; |
a8d201af | 2874 | if (plane_state->base.rotation == BIT(DRM_ROTATE_180)) { |
48404c1e SJ |
2875 | dspcntr |= DISPPLANE_ROTATE_180; |
2876 | ||
2877 | if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) { | |
a8d201af ML |
2878 | x += (crtc_state->pipe_src_w - 1); |
2879 | y += (crtc_state->pipe_src_h - 1); | |
48404c1e SJ |
2880 | |
2881 | /* Finding the last pixel of the last line of the display | |
2882 | data and adding to linear_offset*/ | |
2883 | linear_offset += | |
a8d201af ML |
2884 | (crtc_state->pipe_src_h - 1) * fb->pitches[0] + |
2885 | (crtc_state->pipe_src_w - 1) * pixel_size; | |
48404c1e SJ |
2886 | } |
2887 | } | |
2888 | ||
2db3366b PZ |
2889 | intel_crtc->adjusted_x = x; |
2890 | intel_crtc->adjusted_y = y; | |
2891 | ||
48404c1e | 2892 | I915_WRITE(reg, dspcntr); |
17638cd6 | 2893 | |
01f2c773 | 2894 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
85ba7b7d DV |
2895 | I915_WRITE(DSPSURF(plane), |
2896 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset); | |
b3dc685e | 2897 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
bc1c91eb DL |
2898 | I915_WRITE(DSPOFFSET(plane), (y << 16) | x); |
2899 | } else { | |
2900 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); | |
2901 | I915_WRITE(DSPLINOFF(plane), linear_offset); | |
2902 | } | |
17638cd6 | 2903 | POSTING_READ(reg); |
17638cd6 JB |
2904 | } |
2905 | ||
b321803d DL |
2906 | u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier, |
2907 | uint32_t pixel_format) | |
2908 | { | |
2909 | u32 bits_per_pixel = drm_format_plane_cpp(pixel_format, 0) * 8; | |
2910 | ||
2911 | /* | |
2912 | * The stride is either expressed as a multiple of 64 bytes | |
2913 | * chunks for linear buffers or in number of tiles for tiled | |
2914 | * buffers. | |
2915 | */ | |
2916 | switch (fb_modifier) { | |
2917 | case DRM_FORMAT_MOD_NONE: | |
2918 | return 64; | |
2919 | case I915_FORMAT_MOD_X_TILED: | |
2920 | if (INTEL_INFO(dev)->gen == 2) | |
2921 | return 128; | |
2922 | return 512; | |
2923 | case I915_FORMAT_MOD_Y_TILED: | |
2924 | /* No need to check for old gens and Y tiling since this is | |
2925 | * about the display engine and those will be blocked before | |
2926 | * we get here. | |
2927 | */ | |
2928 | return 128; | |
2929 | case I915_FORMAT_MOD_Yf_TILED: | |
2930 | if (bits_per_pixel == 8) | |
2931 | return 64; | |
2932 | else | |
2933 | return 128; | |
2934 | default: | |
2935 | MISSING_CASE(fb_modifier); | |
2936 | return 64; | |
2937 | } | |
2938 | } | |
2939 | ||
44eb0cb9 MK |
2940 | u32 intel_plane_obj_offset(struct intel_plane *intel_plane, |
2941 | struct drm_i915_gem_object *obj, | |
2942 | unsigned int plane) | |
121920fa | 2943 | { |
ce7f1728 | 2944 | struct i915_ggtt_view view; |
dedf278c | 2945 | struct i915_vma *vma; |
44eb0cb9 | 2946 | u64 offset; |
121920fa | 2947 | |
ce7f1728 DV |
2948 | intel_fill_fb_ggtt_view(&view, intel_plane->base.fb, |
2949 | intel_plane->base.state); | |
121920fa | 2950 | |
ce7f1728 | 2951 | vma = i915_gem_obj_to_ggtt_view(obj, &view); |
dedf278c | 2952 | if (WARN(!vma, "ggtt vma for display object not found! (view=%u)\n", |
ce7f1728 | 2953 | view.type)) |
dedf278c TU |
2954 | return -1; |
2955 | ||
44eb0cb9 | 2956 | offset = vma->node.start; |
dedf278c TU |
2957 | |
2958 | if (plane == 1) { | |
a6d09186 | 2959 | offset += vma->ggtt_view.params.rotation_info.uv_start_page * |
dedf278c TU |
2960 | PAGE_SIZE; |
2961 | } | |
2962 | ||
44eb0cb9 MK |
2963 | WARN_ON(upper_32_bits(offset)); |
2964 | ||
2965 | return lower_32_bits(offset); | |
121920fa TU |
2966 | } |
2967 | ||
e435d6e5 ML |
2968 | static void skl_detach_scaler(struct intel_crtc *intel_crtc, int id) |
2969 | { | |
2970 | struct drm_device *dev = intel_crtc->base.dev; | |
2971 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2972 | ||
2973 | I915_WRITE(SKL_PS_CTRL(intel_crtc->pipe, id), 0); | |
2974 | I915_WRITE(SKL_PS_WIN_POS(intel_crtc->pipe, id), 0); | |
2975 | I915_WRITE(SKL_PS_WIN_SZ(intel_crtc->pipe, id), 0); | |
e435d6e5 ML |
2976 | } |
2977 | ||
a1b2278e CK |
2978 | /* |
2979 | * This function detaches (aka. unbinds) unused scalers in hardware | |
2980 | */ | |
0583236e | 2981 | static void skl_detach_scalers(struct intel_crtc *intel_crtc) |
a1b2278e | 2982 | { |
a1b2278e CK |
2983 | struct intel_crtc_scaler_state *scaler_state; |
2984 | int i; | |
2985 | ||
a1b2278e CK |
2986 | scaler_state = &intel_crtc->config->scaler_state; |
2987 | ||
2988 | /* loop through and disable scalers that aren't in use */ | |
2989 | for (i = 0; i < intel_crtc->num_scalers; i++) { | |
e435d6e5 ML |
2990 | if (!scaler_state->scalers[i].in_use) |
2991 | skl_detach_scaler(intel_crtc, i); | |
a1b2278e CK |
2992 | } |
2993 | } | |
2994 | ||
6156a456 | 2995 | u32 skl_plane_ctl_format(uint32_t pixel_format) |
70d21f0e | 2996 | { |
6156a456 | 2997 | switch (pixel_format) { |
d161cf7a | 2998 | case DRM_FORMAT_C8: |
c34ce3d1 | 2999 | return PLANE_CTL_FORMAT_INDEXED; |
70d21f0e | 3000 | case DRM_FORMAT_RGB565: |
c34ce3d1 | 3001 | return PLANE_CTL_FORMAT_RGB_565; |
70d21f0e | 3002 | case DRM_FORMAT_XBGR8888: |
c34ce3d1 | 3003 | return PLANE_CTL_FORMAT_XRGB_8888 | PLANE_CTL_ORDER_RGBX; |
6156a456 | 3004 | case DRM_FORMAT_XRGB8888: |
c34ce3d1 | 3005 | return PLANE_CTL_FORMAT_XRGB_8888; |
6156a456 CK |
3006 | /* |
3007 | * XXX: For ARBG/ABGR formats we default to expecting scanout buffers | |
3008 | * to be already pre-multiplied. We need to add a knob (or a different | |
3009 | * DRM_FORMAT) for user-space to configure that. | |
3010 | */ | |
f75fb42a | 3011 | case DRM_FORMAT_ABGR8888: |
c34ce3d1 | 3012 | return PLANE_CTL_FORMAT_XRGB_8888 | PLANE_CTL_ORDER_RGBX | |
6156a456 | 3013 | PLANE_CTL_ALPHA_SW_PREMULTIPLY; |
6156a456 | 3014 | case DRM_FORMAT_ARGB8888: |
c34ce3d1 | 3015 | return PLANE_CTL_FORMAT_XRGB_8888 | |
6156a456 | 3016 | PLANE_CTL_ALPHA_SW_PREMULTIPLY; |
70d21f0e | 3017 | case DRM_FORMAT_XRGB2101010: |
c34ce3d1 | 3018 | return PLANE_CTL_FORMAT_XRGB_2101010; |
70d21f0e | 3019 | case DRM_FORMAT_XBGR2101010: |
c34ce3d1 | 3020 | return PLANE_CTL_ORDER_RGBX | PLANE_CTL_FORMAT_XRGB_2101010; |
6156a456 | 3021 | case DRM_FORMAT_YUYV: |
c34ce3d1 | 3022 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_YUYV; |
6156a456 | 3023 | case DRM_FORMAT_YVYU: |
c34ce3d1 | 3024 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_YVYU; |
6156a456 | 3025 | case DRM_FORMAT_UYVY: |
c34ce3d1 | 3026 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_UYVY; |
6156a456 | 3027 | case DRM_FORMAT_VYUY: |
c34ce3d1 | 3028 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_VYUY; |
70d21f0e | 3029 | default: |
4249eeef | 3030 | MISSING_CASE(pixel_format); |
70d21f0e | 3031 | } |
8cfcba41 | 3032 | |
c34ce3d1 | 3033 | return 0; |
6156a456 | 3034 | } |
70d21f0e | 3035 | |
6156a456 CK |
3036 | u32 skl_plane_ctl_tiling(uint64_t fb_modifier) |
3037 | { | |
6156a456 | 3038 | switch (fb_modifier) { |
30af77c4 | 3039 | case DRM_FORMAT_MOD_NONE: |
70d21f0e | 3040 | break; |
30af77c4 | 3041 | case I915_FORMAT_MOD_X_TILED: |
c34ce3d1 | 3042 | return PLANE_CTL_TILED_X; |
b321803d | 3043 | case I915_FORMAT_MOD_Y_TILED: |
c34ce3d1 | 3044 | return PLANE_CTL_TILED_Y; |
b321803d | 3045 | case I915_FORMAT_MOD_Yf_TILED: |
c34ce3d1 | 3046 | return PLANE_CTL_TILED_YF; |
70d21f0e | 3047 | default: |
6156a456 | 3048 | MISSING_CASE(fb_modifier); |
70d21f0e | 3049 | } |
8cfcba41 | 3050 | |
c34ce3d1 | 3051 | return 0; |
6156a456 | 3052 | } |
70d21f0e | 3053 | |
6156a456 CK |
3054 | u32 skl_plane_ctl_rotation(unsigned int rotation) |
3055 | { | |
3b7a5119 | 3056 | switch (rotation) { |
6156a456 CK |
3057 | case BIT(DRM_ROTATE_0): |
3058 | break; | |
1e8df167 SJ |
3059 | /* |
3060 | * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr | |
3061 | * while i915 HW rotation is clockwise, thats why this swapping. | |
3062 | */ | |
3b7a5119 | 3063 | case BIT(DRM_ROTATE_90): |
1e8df167 | 3064 | return PLANE_CTL_ROTATE_270; |
3b7a5119 | 3065 | case BIT(DRM_ROTATE_180): |
c34ce3d1 | 3066 | return PLANE_CTL_ROTATE_180; |
3b7a5119 | 3067 | case BIT(DRM_ROTATE_270): |
1e8df167 | 3068 | return PLANE_CTL_ROTATE_90; |
6156a456 CK |
3069 | default: |
3070 | MISSING_CASE(rotation); | |
3071 | } | |
3072 | ||
c34ce3d1 | 3073 | return 0; |
6156a456 CK |
3074 | } |
3075 | ||
a8d201af ML |
3076 | static void skylake_update_primary_plane(struct drm_plane *plane, |
3077 | const struct intel_crtc_state *crtc_state, | |
3078 | const struct intel_plane_state *plane_state) | |
6156a456 | 3079 | { |
a8d201af | 3080 | struct drm_device *dev = plane->dev; |
6156a456 | 3081 | struct drm_i915_private *dev_priv = dev->dev_private; |
a8d201af ML |
3082 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); |
3083 | struct drm_framebuffer *fb = plane_state->base.fb; | |
3084 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
6156a456 CK |
3085 | int pipe = intel_crtc->pipe; |
3086 | u32 plane_ctl, stride_div, stride; | |
3087 | u32 tile_height, plane_offset, plane_size; | |
a8d201af | 3088 | unsigned int rotation = plane_state->base.rotation; |
6156a456 | 3089 | int x_offset, y_offset; |
44eb0cb9 | 3090 | u32 surf_addr; |
a8d201af ML |
3091 | int scaler_id = plane_state->scaler_id; |
3092 | int src_x = plane_state->src.x1 >> 16; | |
3093 | int src_y = plane_state->src.y1 >> 16; | |
3094 | int src_w = drm_rect_width(&plane_state->src) >> 16; | |
3095 | int src_h = drm_rect_height(&plane_state->src) >> 16; | |
3096 | int dst_x = plane_state->dst.x1; | |
3097 | int dst_y = plane_state->dst.y1; | |
3098 | int dst_w = drm_rect_width(&plane_state->dst); | |
3099 | int dst_h = drm_rect_height(&plane_state->dst); | |
70d21f0e | 3100 | |
6156a456 CK |
3101 | plane_ctl = PLANE_CTL_ENABLE | |
3102 | PLANE_CTL_PIPE_GAMMA_ENABLE | | |
3103 | PLANE_CTL_PIPE_CSC_ENABLE; | |
3104 | ||
3105 | plane_ctl |= skl_plane_ctl_format(fb->pixel_format); | |
3106 | plane_ctl |= skl_plane_ctl_tiling(fb->modifier[0]); | |
3107 | plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE; | |
6156a456 CK |
3108 | plane_ctl |= skl_plane_ctl_rotation(rotation); |
3109 | ||
b321803d DL |
3110 | stride_div = intel_fb_stride_alignment(dev, fb->modifier[0], |
3111 | fb->pixel_format); | |
dedf278c | 3112 | surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj, 0); |
3b7a5119 | 3113 | |
a42e5a23 PZ |
3114 | WARN_ON(drm_rect_width(&plane_state->src) == 0); |
3115 | ||
3b7a5119 SJ |
3116 | if (intel_rotation_90_or_270(rotation)) { |
3117 | /* stride = Surface height in tiles */ | |
2614f17d | 3118 | tile_height = intel_tile_height(dev, fb->pixel_format, |
fe47ea0c | 3119 | fb->modifier[0], 0); |
3b7a5119 | 3120 | stride = DIV_ROUND_UP(fb->height, tile_height); |
a8d201af ML |
3121 | x_offset = stride * tile_height - src_y - src_h; |
3122 | y_offset = src_x; | |
6156a456 | 3123 | plane_size = (src_w - 1) << 16 | (src_h - 1); |
3b7a5119 SJ |
3124 | } else { |
3125 | stride = fb->pitches[0] / stride_div; | |
a8d201af ML |
3126 | x_offset = src_x; |
3127 | y_offset = src_y; | |
6156a456 | 3128 | plane_size = (src_h - 1) << 16 | (src_w - 1); |
3b7a5119 SJ |
3129 | } |
3130 | plane_offset = y_offset << 16 | x_offset; | |
b321803d | 3131 | |
2db3366b PZ |
3132 | intel_crtc->adjusted_x = x_offset; |
3133 | intel_crtc->adjusted_y = y_offset; | |
3134 | ||
70d21f0e | 3135 | I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl); |
3b7a5119 SJ |
3136 | I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset); |
3137 | I915_WRITE(PLANE_SIZE(pipe, 0), plane_size); | |
3138 | I915_WRITE(PLANE_STRIDE(pipe, 0), stride); | |
6156a456 CK |
3139 | |
3140 | if (scaler_id >= 0) { | |
3141 | uint32_t ps_ctrl = 0; | |
3142 | ||
3143 | WARN_ON(!dst_w || !dst_h); | |
3144 | ps_ctrl = PS_SCALER_EN | PS_PLANE_SEL(0) | | |
3145 | crtc_state->scaler_state.scalers[scaler_id].mode; | |
3146 | I915_WRITE(SKL_PS_CTRL(pipe, scaler_id), ps_ctrl); | |
3147 | I915_WRITE(SKL_PS_PWR_GATE(pipe, scaler_id), 0); | |
3148 | I915_WRITE(SKL_PS_WIN_POS(pipe, scaler_id), (dst_x << 16) | dst_y); | |
3149 | I915_WRITE(SKL_PS_WIN_SZ(pipe, scaler_id), (dst_w << 16) | dst_h); | |
3150 | I915_WRITE(PLANE_POS(pipe, 0), 0); | |
3151 | } else { | |
3152 | I915_WRITE(PLANE_POS(pipe, 0), (dst_y << 16) | dst_x); | |
3153 | } | |
3154 | ||
121920fa | 3155 | I915_WRITE(PLANE_SURF(pipe, 0), surf_addr); |
70d21f0e DL |
3156 | |
3157 | POSTING_READ(PLANE_SURF(pipe, 0)); | |
3158 | } | |
3159 | ||
a8d201af ML |
3160 | static void skylake_disable_primary_plane(struct drm_plane *primary, |
3161 | struct drm_crtc *crtc) | |
17638cd6 JB |
3162 | { |
3163 | struct drm_device *dev = crtc->dev; | |
3164 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a8d201af | 3165 | int pipe = to_intel_crtc(crtc)->pipe; |
17638cd6 | 3166 | |
0e631adc PZ |
3167 | if (dev_priv->fbc.deactivate) |
3168 | dev_priv->fbc.deactivate(dev_priv); | |
81255565 | 3169 | |
a8d201af ML |
3170 | I915_WRITE(PLANE_CTL(pipe, 0), 0); |
3171 | I915_WRITE(PLANE_SURF(pipe, 0), 0); | |
3172 | POSTING_READ(PLANE_SURF(pipe, 0)); | |
3173 | } | |
29b9bde6 | 3174 | |
a8d201af ML |
3175 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ |
3176 | static int | |
3177 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
3178 | int x, int y, enum mode_set_atomic state) | |
3179 | { | |
3180 | /* Support for kgdboc is disabled, this needs a major rework. */ | |
3181 | DRM_ERROR("legacy panic handler not supported any more.\n"); | |
3182 | ||
3183 | return -ENODEV; | |
81255565 JB |
3184 | } |
3185 | ||
7514747d | 3186 | static void intel_complete_page_flips(struct drm_device *dev) |
96a02917 | 3187 | { |
96a02917 VS |
3188 | struct drm_crtc *crtc; |
3189 | ||
70e1e0ec | 3190 | for_each_crtc(dev, crtc) { |
96a02917 VS |
3191 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3192 | enum plane plane = intel_crtc->plane; | |
3193 | ||
3194 | intel_prepare_page_flip(dev, plane); | |
3195 | intel_finish_page_flip_plane(dev, plane); | |
3196 | } | |
7514747d VS |
3197 | } |
3198 | ||
3199 | static void intel_update_primary_planes(struct drm_device *dev) | |
3200 | { | |
7514747d | 3201 | struct drm_crtc *crtc; |
96a02917 | 3202 | |
70e1e0ec | 3203 | for_each_crtc(dev, crtc) { |
11c22da6 ML |
3204 | struct intel_plane *plane = to_intel_plane(crtc->primary); |
3205 | struct intel_plane_state *plane_state; | |
96a02917 | 3206 | |
11c22da6 | 3207 | drm_modeset_lock_crtc(crtc, &plane->base); |
11c22da6 ML |
3208 | plane_state = to_intel_plane_state(plane->base.state); |
3209 | ||
a8d201af ML |
3210 | if (plane_state->visible) |
3211 | plane->update_plane(&plane->base, | |
3212 | to_intel_crtc_state(crtc->state), | |
3213 | plane_state); | |
11c22da6 ML |
3214 | |
3215 | drm_modeset_unlock_crtc(crtc); | |
96a02917 VS |
3216 | } |
3217 | } | |
3218 | ||
7514747d VS |
3219 | void intel_prepare_reset(struct drm_device *dev) |
3220 | { | |
3221 | /* no reset support for gen2 */ | |
3222 | if (IS_GEN2(dev)) | |
3223 | return; | |
3224 | ||
3225 | /* reset doesn't touch the display */ | |
3226 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) | |
3227 | return; | |
3228 | ||
3229 | drm_modeset_lock_all(dev); | |
f98ce92f VS |
3230 | /* |
3231 | * Disabling the crtcs gracefully seems nicer. Also the | |
3232 | * g33 docs say we should at least disable all the planes. | |
3233 | */ | |
6b72d486 | 3234 | intel_display_suspend(dev); |
7514747d VS |
3235 | } |
3236 | ||
3237 | void intel_finish_reset(struct drm_device *dev) | |
3238 | { | |
3239 | struct drm_i915_private *dev_priv = to_i915(dev); | |
3240 | ||
3241 | /* | |
3242 | * Flips in the rings will be nuked by the reset, | |
3243 | * so complete all pending flips so that user space | |
3244 | * will get its events and not get stuck. | |
3245 | */ | |
3246 | intel_complete_page_flips(dev); | |
3247 | ||
3248 | /* no reset support for gen2 */ | |
3249 | if (IS_GEN2(dev)) | |
3250 | return; | |
3251 | ||
3252 | /* reset doesn't touch the display */ | |
3253 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) { | |
3254 | /* | |
3255 | * Flips in the rings have been nuked by the reset, | |
3256 | * so update the base address of all primary | |
3257 | * planes to the the last fb to make sure we're | |
3258 | * showing the correct fb after a reset. | |
11c22da6 ML |
3259 | * |
3260 | * FIXME: Atomic will make this obsolete since we won't schedule | |
3261 | * CS-based flips (which might get lost in gpu resets) any more. | |
7514747d VS |
3262 | */ |
3263 | intel_update_primary_planes(dev); | |
3264 | return; | |
3265 | } | |
3266 | ||
3267 | /* | |
3268 | * The display has been reset as well, | |
3269 | * so need a full re-initialization. | |
3270 | */ | |
3271 | intel_runtime_pm_disable_interrupts(dev_priv); | |
3272 | intel_runtime_pm_enable_interrupts(dev_priv); | |
3273 | ||
3274 | intel_modeset_init_hw(dev); | |
3275 | ||
3276 | spin_lock_irq(&dev_priv->irq_lock); | |
3277 | if (dev_priv->display.hpd_irq_setup) | |
3278 | dev_priv->display.hpd_irq_setup(dev); | |
3279 | spin_unlock_irq(&dev_priv->irq_lock); | |
3280 | ||
043e9bda | 3281 | intel_display_resume(dev); |
7514747d VS |
3282 | |
3283 | intel_hpd_init(dev_priv); | |
3284 | ||
3285 | drm_modeset_unlock_all(dev); | |
3286 | } | |
3287 | ||
7d5e3799 CW |
3288 | static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc) |
3289 | { | |
3290 | struct drm_device *dev = crtc->dev; | |
3291 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3292 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7d5e3799 CW |
3293 | bool pending; |
3294 | ||
3295 | if (i915_reset_in_progress(&dev_priv->gpu_error) || | |
3296 | intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) | |
3297 | return false; | |
3298 | ||
5e2d7afc | 3299 | spin_lock_irq(&dev->event_lock); |
7d5e3799 | 3300 | pending = to_intel_crtc(crtc)->unpin_work != NULL; |
5e2d7afc | 3301 | spin_unlock_irq(&dev->event_lock); |
7d5e3799 CW |
3302 | |
3303 | return pending; | |
3304 | } | |
3305 | ||
bfd16b2a ML |
3306 | static void intel_update_pipe_config(struct intel_crtc *crtc, |
3307 | struct intel_crtc_state *old_crtc_state) | |
e30e8f75 GP |
3308 | { |
3309 | struct drm_device *dev = crtc->base.dev; | |
3310 | struct drm_i915_private *dev_priv = dev->dev_private; | |
bfd16b2a ML |
3311 | struct intel_crtc_state *pipe_config = |
3312 | to_intel_crtc_state(crtc->base.state); | |
e30e8f75 | 3313 | |
bfd16b2a ML |
3314 | /* drm_atomic_helper_update_legacy_modeset_state might not be called. */ |
3315 | crtc->base.mode = crtc->base.state->mode; | |
3316 | ||
3317 | DRM_DEBUG_KMS("Updating pipe size %ix%i -> %ix%i\n", | |
3318 | old_crtc_state->pipe_src_w, old_crtc_state->pipe_src_h, | |
3319 | pipe_config->pipe_src_w, pipe_config->pipe_src_h); | |
e30e8f75 | 3320 | |
44522d85 ML |
3321 | if (HAS_DDI(dev)) |
3322 | intel_set_pipe_csc(&crtc->base); | |
3323 | ||
e30e8f75 GP |
3324 | /* |
3325 | * Update pipe size and adjust fitter if needed: the reason for this is | |
3326 | * that in compute_mode_changes we check the native mode (not the pfit | |
3327 | * mode) to see if we can flip rather than do a full mode set. In the | |
3328 | * fastboot case, we'll flip, but if we don't update the pipesrc and | |
3329 | * pfit state, we'll end up with a big fb scanned out into the wrong | |
3330 | * sized surface. | |
e30e8f75 GP |
3331 | */ |
3332 | ||
e30e8f75 | 3333 | I915_WRITE(PIPESRC(crtc->pipe), |
bfd16b2a ML |
3334 | ((pipe_config->pipe_src_w - 1) << 16) | |
3335 | (pipe_config->pipe_src_h - 1)); | |
3336 | ||
3337 | /* on skylake this is done by detaching scalers */ | |
3338 | if (INTEL_INFO(dev)->gen >= 9) { | |
3339 | skl_detach_scalers(crtc); | |
3340 | ||
3341 | if (pipe_config->pch_pfit.enabled) | |
3342 | skylake_pfit_enable(crtc); | |
3343 | } else if (HAS_PCH_SPLIT(dev)) { | |
3344 | if (pipe_config->pch_pfit.enabled) | |
3345 | ironlake_pfit_enable(crtc); | |
3346 | else if (old_crtc_state->pch_pfit.enabled) | |
3347 | ironlake_pfit_disable(crtc, true); | |
e30e8f75 | 3348 | } |
e30e8f75 GP |
3349 | } |
3350 | ||
5e84e1a4 ZW |
3351 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
3352 | { | |
3353 | struct drm_device *dev = crtc->dev; | |
3354 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3355 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3356 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3357 | i915_reg_t reg; |
3358 | u32 temp; | |
5e84e1a4 ZW |
3359 | |
3360 | /* enable normal train */ | |
3361 | reg = FDI_TX_CTL(pipe); | |
3362 | temp = I915_READ(reg); | |
61e499bf | 3363 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
3364 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
3365 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
3366 | } else { |
3367 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3368 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 3369 | } |
5e84e1a4 ZW |
3370 | I915_WRITE(reg, temp); |
3371 | ||
3372 | reg = FDI_RX_CTL(pipe); | |
3373 | temp = I915_READ(reg); | |
3374 | if (HAS_PCH_CPT(dev)) { | |
3375 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3376 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
3377 | } else { | |
3378 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3379 | temp |= FDI_LINK_TRAIN_NONE; | |
3380 | } | |
3381 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
3382 | ||
3383 | /* wait one idle pattern time */ | |
3384 | POSTING_READ(reg); | |
3385 | udelay(1000); | |
357555c0 JB |
3386 | |
3387 | /* IVB wants error correction enabled */ | |
3388 | if (IS_IVYBRIDGE(dev)) | |
3389 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
3390 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
3391 | } |
3392 | ||
8db9d77b ZW |
3393 | /* The FDI link training functions for ILK/Ibexpeak. */ |
3394 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
3395 | { | |
3396 | struct drm_device *dev = crtc->dev; | |
3397 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3398 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3399 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3400 | i915_reg_t reg; |
3401 | u32 temp, tries; | |
8db9d77b | 3402 | |
1c8562f6 | 3403 | /* FDI needs bits from pipe first */ |
0fc932b8 | 3404 | assert_pipe_enabled(dev_priv, pipe); |
0fc932b8 | 3405 | |
e1a44743 AJ |
3406 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
3407 | for train result */ | |
5eddb70b CW |
3408 | reg = FDI_RX_IMR(pipe); |
3409 | temp = I915_READ(reg); | |
e1a44743 AJ |
3410 | temp &= ~FDI_RX_SYMBOL_LOCK; |
3411 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
3412 | I915_WRITE(reg, temp); |
3413 | I915_READ(reg); | |
e1a44743 AJ |
3414 | udelay(150); |
3415 | ||
8db9d77b | 3416 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
3417 | reg = FDI_TX_CTL(pipe); |
3418 | temp = I915_READ(reg); | |
627eb5a3 | 3419 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3420 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
8db9d77b ZW |
3421 | temp &= ~FDI_LINK_TRAIN_NONE; |
3422 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 3423 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 3424 | |
5eddb70b CW |
3425 | reg = FDI_RX_CTL(pipe); |
3426 | temp = I915_READ(reg); | |
8db9d77b ZW |
3427 | temp &= ~FDI_LINK_TRAIN_NONE; |
3428 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
3429 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
3430 | ||
3431 | POSTING_READ(reg); | |
8db9d77b ZW |
3432 | udelay(150); |
3433 | ||
5b2adf89 | 3434 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
8f5718a6 DV |
3435 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
3436 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
3437 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
5b2adf89 | 3438 | |
5eddb70b | 3439 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 3440 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 3441 | temp = I915_READ(reg); |
8db9d77b ZW |
3442 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
3443 | ||
3444 | if ((temp & FDI_RX_BIT_LOCK)) { | |
3445 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 3446 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
3447 | break; |
3448 | } | |
8db9d77b | 3449 | } |
e1a44743 | 3450 | if (tries == 5) |
5eddb70b | 3451 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
3452 | |
3453 | /* Train 2 */ | |
5eddb70b CW |
3454 | reg = FDI_TX_CTL(pipe); |
3455 | temp = I915_READ(reg); | |
8db9d77b ZW |
3456 | temp &= ~FDI_LINK_TRAIN_NONE; |
3457 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 3458 | I915_WRITE(reg, temp); |
8db9d77b | 3459 | |
5eddb70b CW |
3460 | reg = FDI_RX_CTL(pipe); |
3461 | temp = I915_READ(reg); | |
8db9d77b ZW |
3462 | temp &= ~FDI_LINK_TRAIN_NONE; |
3463 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 3464 | I915_WRITE(reg, temp); |
8db9d77b | 3465 | |
5eddb70b CW |
3466 | POSTING_READ(reg); |
3467 | udelay(150); | |
8db9d77b | 3468 | |
5eddb70b | 3469 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 3470 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 3471 | temp = I915_READ(reg); |
8db9d77b ZW |
3472 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
3473 | ||
3474 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 3475 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
3476 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
3477 | break; | |
3478 | } | |
8db9d77b | 3479 | } |
e1a44743 | 3480 | if (tries == 5) |
5eddb70b | 3481 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
3482 | |
3483 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 3484 | |
8db9d77b ZW |
3485 | } |
3486 | ||
0206e353 | 3487 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
3488 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
3489 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
3490 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
3491 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
3492 | }; | |
3493 | ||
3494 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
3495 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
3496 | { | |
3497 | struct drm_device *dev = crtc->dev; | |
3498 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3499 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3500 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3501 | i915_reg_t reg; |
3502 | u32 temp, i, retry; | |
8db9d77b | 3503 | |
e1a44743 AJ |
3504 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
3505 | for train result */ | |
5eddb70b CW |
3506 | reg = FDI_RX_IMR(pipe); |
3507 | temp = I915_READ(reg); | |
e1a44743 AJ |
3508 | temp &= ~FDI_RX_SYMBOL_LOCK; |
3509 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
3510 | I915_WRITE(reg, temp); |
3511 | ||
3512 | POSTING_READ(reg); | |
e1a44743 AJ |
3513 | udelay(150); |
3514 | ||
8db9d77b | 3515 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
3516 | reg = FDI_TX_CTL(pipe); |
3517 | temp = I915_READ(reg); | |
627eb5a3 | 3518 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3519 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
8db9d77b ZW |
3520 | temp &= ~FDI_LINK_TRAIN_NONE; |
3521 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3522 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
3523 | /* SNB-B */ | |
3524 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 3525 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 3526 | |
d74cf324 DV |
3527 | I915_WRITE(FDI_RX_MISC(pipe), |
3528 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
3529 | ||
5eddb70b CW |
3530 | reg = FDI_RX_CTL(pipe); |
3531 | temp = I915_READ(reg); | |
8db9d77b ZW |
3532 | if (HAS_PCH_CPT(dev)) { |
3533 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3534 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
3535 | } else { | |
3536 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3537 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3538 | } | |
5eddb70b CW |
3539 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
3540 | ||
3541 | POSTING_READ(reg); | |
8db9d77b ZW |
3542 | udelay(150); |
3543 | ||
0206e353 | 3544 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
3545 | reg = FDI_TX_CTL(pipe); |
3546 | temp = I915_READ(reg); | |
8db9d77b ZW |
3547 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
3548 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
3549 | I915_WRITE(reg, temp); |
3550 | ||
3551 | POSTING_READ(reg); | |
8db9d77b ZW |
3552 | udelay(500); |
3553 | ||
fa37d39e SP |
3554 | for (retry = 0; retry < 5; retry++) { |
3555 | reg = FDI_RX_IIR(pipe); | |
3556 | temp = I915_READ(reg); | |
3557 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
3558 | if (temp & FDI_RX_BIT_LOCK) { | |
3559 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
3560 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
3561 | break; | |
3562 | } | |
3563 | udelay(50); | |
8db9d77b | 3564 | } |
fa37d39e SP |
3565 | if (retry < 5) |
3566 | break; | |
8db9d77b ZW |
3567 | } |
3568 | if (i == 4) | |
5eddb70b | 3569 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
3570 | |
3571 | /* Train 2 */ | |
5eddb70b CW |
3572 | reg = FDI_TX_CTL(pipe); |
3573 | temp = I915_READ(reg); | |
8db9d77b ZW |
3574 | temp &= ~FDI_LINK_TRAIN_NONE; |
3575 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
3576 | if (IS_GEN6(dev)) { | |
3577 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
3578 | /* SNB-B */ | |
3579 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
3580 | } | |
5eddb70b | 3581 | I915_WRITE(reg, temp); |
8db9d77b | 3582 | |
5eddb70b CW |
3583 | reg = FDI_RX_CTL(pipe); |
3584 | temp = I915_READ(reg); | |
8db9d77b ZW |
3585 | if (HAS_PCH_CPT(dev)) { |
3586 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3587 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
3588 | } else { | |
3589 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3590 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
3591 | } | |
5eddb70b CW |
3592 | I915_WRITE(reg, temp); |
3593 | ||
3594 | POSTING_READ(reg); | |
8db9d77b ZW |
3595 | udelay(150); |
3596 | ||
0206e353 | 3597 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
3598 | reg = FDI_TX_CTL(pipe); |
3599 | temp = I915_READ(reg); | |
8db9d77b ZW |
3600 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
3601 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
3602 | I915_WRITE(reg, temp); |
3603 | ||
3604 | POSTING_READ(reg); | |
8db9d77b ZW |
3605 | udelay(500); |
3606 | ||
fa37d39e SP |
3607 | for (retry = 0; retry < 5; retry++) { |
3608 | reg = FDI_RX_IIR(pipe); | |
3609 | temp = I915_READ(reg); | |
3610 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
3611 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
3612 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
3613 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
3614 | break; | |
3615 | } | |
3616 | udelay(50); | |
8db9d77b | 3617 | } |
fa37d39e SP |
3618 | if (retry < 5) |
3619 | break; | |
8db9d77b ZW |
3620 | } |
3621 | if (i == 4) | |
5eddb70b | 3622 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
3623 | |
3624 | DRM_DEBUG_KMS("FDI train done.\n"); | |
3625 | } | |
3626 | ||
357555c0 JB |
3627 | /* Manual link training for Ivy Bridge A0 parts */ |
3628 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
3629 | { | |
3630 | struct drm_device *dev = crtc->dev; | |
3631 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3632 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3633 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3634 | i915_reg_t reg; |
3635 | u32 temp, i, j; | |
357555c0 JB |
3636 | |
3637 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
3638 | for train result */ | |
3639 | reg = FDI_RX_IMR(pipe); | |
3640 | temp = I915_READ(reg); | |
3641 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
3642 | temp &= ~FDI_RX_BIT_LOCK; | |
3643 | I915_WRITE(reg, temp); | |
3644 | ||
3645 | POSTING_READ(reg); | |
3646 | udelay(150); | |
3647 | ||
01a415fd DV |
3648 | DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n", |
3649 | I915_READ(FDI_RX_IIR(pipe))); | |
3650 | ||
139ccd3f JB |
3651 | /* Try each vswing and preemphasis setting twice before moving on */ |
3652 | for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) { | |
3653 | /* disable first in case we need to retry */ | |
3654 | reg = FDI_TX_CTL(pipe); | |
3655 | temp = I915_READ(reg); | |
3656 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
3657 | temp &= ~FDI_TX_ENABLE; | |
3658 | I915_WRITE(reg, temp); | |
357555c0 | 3659 | |
139ccd3f JB |
3660 | reg = FDI_RX_CTL(pipe); |
3661 | temp = I915_READ(reg); | |
3662 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
3663 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3664 | temp &= ~FDI_RX_ENABLE; | |
3665 | I915_WRITE(reg, temp); | |
357555c0 | 3666 | |
139ccd3f | 3667 | /* enable CPU FDI TX and PCH FDI RX */ |
357555c0 JB |
3668 | reg = FDI_TX_CTL(pipe); |
3669 | temp = I915_READ(reg); | |
139ccd3f | 3670 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3671 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
139ccd3f | 3672 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; |
357555c0 | 3673 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
139ccd3f JB |
3674 | temp |= snb_b_fdi_train_param[j/2]; |
3675 | temp |= FDI_COMPOSITE_SYNC; | |
3676 | I915_WRITE(reg, temp | FDI_TX_ENABLE); | |
357555c0 | 3677 | |
139ccd3f JB |
3678 | I915_WRITE(FDI_RX_MISC(pipe), |
3679 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
357555c0 | 3680 | |
139ccd3f | 3681 | reg = FDI_RX_CTL(pipe); |
357555c0 | 3682 | temp = I915_READ(reg); |
139ccd3f JB |
3683 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
3684 | temp |= FDI_COMPOSITE_SYNC; | |
3685 | I915_WRITE(reg, temp | FDI_RX_ENABLE); | |
357555c0 | 3686 | |
139ccd3f JB |
3687 | POSTING_READ(reg); |
3688 | udelay(1); /* should be 0.5us */ | |
357555c0 | 3689 | |
139ccd3f JB |
3690 | for (i = 0; i < 4; i++) { |
3691 | reg = FDI_RX_IIR(pipe); | |
3692 | temp = I915_READ(reg); | |
3693 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
357555c0 | 3694 | |
139ccd3f JB |
3695 | if (temp & FDI_RX_BIT_LOCK || |
3696 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
3697 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
3698 | DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", | |
3699 | i); | |
3700 | break; | |
3701 | } | |
3702 | udelay(1); /* should be 0.5us */ | |
3703 | } | |
3704 | if (i == 4) { | |
3705 | DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2); | |
3706 | continue; | |
3707 | } | |
357555c0 | 3708 | |
139ccd3f | 3709 | /* Train 2 */ |
357555c0 JB |
3710 | reg = FDI_TX_CTL(pipe); |
3711 | temp = I915_READ(reg); | |
139ccd3f JB |
3712 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
3713 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
3714 | I915_WRITE(reg, temp); | |
3715 | ||
3716 | reg = FDI_RX_CTL(pipe); | |
3717 | temp = I915_READ(reg); | |
3718 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3719 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
357555c0 JB |
3720 | I915_WRITE(reg, temp); |
3721 | ||
3722 | POSTING_READ(reg); | |
139ccd3f | 3723 | udelay(2); /* should be 1.5us */ |
357555c0 | 3724 | |
139ccd3f JB |
3725 | for (i = 0; i < 4; i++) { |
3726 | reg = FDI_RX_IIR(pipe); | |
3727 | temp = I915_READ(reg); | |
3728 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
357555c0 | 3729 | |
139ccd3f JB |
3730 | if (temp & FDI_RX_SYMBOL_LOCK || |
3731 | (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) { | |
3732 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
3733 | DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", | |
3734 | i); | |
3735 | goto train_done; | |
3736 | } | |
3737 | udelay(2); /* should be 1.5us */ | |
357555c0 | 3738 | } |
139ccd3f JB |
3739 | if (i == 4) |
3740 | DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2); | |
357555c0 | 3741 | } |
357555c0 | 3742 | |
139ccd3f | 3743 | train_done: |
357555c0 JB |
3744 | DRM_DEBUG_KMS("FDI train done.\n"); |
3745 | } | |
3746 | ||
88cefb6c | 3747 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 3748 | { |
88cefb6c | 3749 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 3750 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 3751 | int pipe = intel_crtc->pipe; |
f0f59a00 VS |
3752 | i915_reg_t reg; |
3753 | u32 temp; | |
c64e311e | 3754 | |
c98e9dcf | 3755 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
3756 | reg = FDI_RX_CTL(pipe); |
3757 | temp = I915_READ(reg); | |
627eb5a3 | 3758 | temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16)); |
6e3c9717 | 3759 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
dfd07d72 | 3760 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
5eddb70b CW |
3761 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); |
3762 | ||
3763 | POSTING_READ(reg); | |
c98e9dcf JB |
3764 | udelay(200); |
3765 | ||
3766 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
3767 | temp = I915_READ(reg); |
3768 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
3769 | ||
3770 | POSTING_READ(reg); | |
c98e9dcf JB |
3771 | udelay(200); |
3772 | ||
20749730 PZ |
3773 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
3774 | reg = FDI_TX_CTL(pipe); | |
3775 | temp = I915_READ(reg); | |
3776 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
3777 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 3778 | |
20749730 PZ |
3779 | POSTING_READ(reg); |
3780 | udelay(100); | |
6be4a607 | 3781 | } |
0e23b99d JB |
3782 | } |
3783 | ||
88cefb6c DV |
3784 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
3785 | { | |
3786 | struct drm_device *dev = intel_crtc->base.dev; | |
3787 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3788 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3789 | i915_reg_t reg; |
3790 | u32 temp; | |
88cefb6c DV |
3791 | |
3792 | /* Switch from PCDclk to Rawclk */ | |
3793 | reg = FDI_RX_CTL(pipe); | |
3794 | temp = I915_READ(reg); | |
3795 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
3796 | ||
3797 | /* Disable CPU FDI TX PLL */ | |
3798 | reg = FDI_TX_CTL(pipe); | |
3799 | temp = I915_READ(reg); | |
3800 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
3801 | ||
3802 | POSTING_READ(reg); | |
3803 | udelay(100); | |
3804 | ||
3805 | reg = FDI_RX_CTL(pipe); | |
3806 | temp = I915_READ(reg); | |
3807 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
3808 | ||
3809 | /* Wait for the clocks to turn off. */ | |
3810 | POSTING_READ(reg); | |
3811 | udelay(100); | |
3812 | } | |
3813 | ||
0fc932b8 JB |
3814 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
3815 | { | |
3816 | struct drm_device *dev = crtc->dev; | |
3817 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3818 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3819 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3820 | i915_reg_t reg; |
3821 | u32 temp; | |
0fc932b8 JB |
3822 | |
3823 | /* disable CPU FDI tx and PCH FDI rx */ | |
3824 | reg = FDI_TX_CTL(pipe); | |
3825 | temp = I915_READ(reg); | |
3826 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
3827 | POSTING_READ(reg); | |
3828 | ||
3829 | reg = FDI_RX_CTL(pipe); | |
3830 | temp = I915_READ(reg); | |
3831 | temp &= ~(0x7 << 16); | |
dfd07d72 | 3832 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
3833 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); |
3834 | ||
3835 | POSTING_READ(reg); | |
3836 | udelay(100); | |
3837 | ||
3838 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
eba905b2 | 3839 | if (HAS_PCH_IBX(dev)) |
6f06ce18 | 3840 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
0fc932b8 JB |
3841 | |
3842 | /* still set train pattern 1 */ | |
3843 | reg = FDI_TX_CTL(pipe); | |
3844 | temp = I915_READ(reg); | |
3845 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3846 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3847 | I915_WRITE(reg, temp); | |
3848 | ||
3849 | reg = FDI_RX_CTL(pipe); | |
3850 | temp = I915_READ(reg); | |
3851 | if (HAS_PCH_CPT(dev)) { | |
3852 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3853 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
3854 | } else { | |
3855 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3856 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3857 | } | |
3858 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
3859 | temp &= ~(0x07 << 16); | |
dfd07d72 | 3860 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
3861 | I915_WRITE(reg, temp); |
3862 | ||
3863 | POSTING_READ(reg); | |
3864 | udelay(100); | |
3865 | } | |
3866 | ||
5dce5b93 CW |
3867 | bool intel_has_pending_fb_unpin(struct drm_device *dev) |
3868 | { | |
3869 | struct intel_crtc *crtc; | |
3870 | ||
3871 | /* Note that we don't need to be called with mode_config.lock here | |
3872 | * as our list of CRTC objects is static for the lifetime of the | |
3873 | * device and so cannot disappear as we iterate. Similarly, we can | |
3874 | * happily treat the predicates as racy, atomic checks as userspace | |
3875 | * cannot claim and pin a new fb without at least acquring the | |
3876 | * struct_mutex and so serialising with us. | |
3877 | */ | |
d3fcc808 | 3878 | for_each_intel_crtc(dev, crtc) { |
5dce5b93 CW |
3879 | if (atomic_read(&crtc->unpin_work_count) == 0) |
3880 | continue; | |
3881 | ||
3882 | if (crtc->unpin_work) | |
3883 | intel_wait_for_vblank(dev, crtc->pipe); | |
3884 | ||
3885 | return true; | |
3886 | } | |
3887 | ||
3888 | return false; | |
3889 | } | |
3890 | ||
d6bbafa1 CW |
3891 | static void page_flip_completed(struct intel_crtc *intel_crtc) |
3892 | { | |
3893 | struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev); | |
3894 | struct intel_unpin_work *work = intel_crtc->unpin_work; | |
3895 | ||
3896 | /* ensure that the unpin work is consistent wrt ->pending. */ | |
3897 | smp_rmb(); | |
3898 | intel_crtc->unpin_work = NULL; | |
3899 | ||
3900 | if (work->event) | |
3901 | drm_send_vblank_event(intel_crtc->base.dev, | |
3902 | intel_crtc->pipe, | |
3903 | work->event); | |
3904 | ||
3905 | drm_crtc_vblank_put(&intel_crtc->base); | |
3906 | ||
3907 | wake_up_all(&dev_priv->pending_flip_queue); | |
3908 | queue_work(dev_priv->wq, &work->work); | |
3909 | ||
3910 | trace_i915_flip_complete(intel_crtc->plane, | |
3911 | work->pending_flip_obj); | |
3912 | } | |
3913 | ||
5008e874 | 3914 | static int intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
e6c3a2a6 | 3915 | { |
0f91128d | 3916 | struct drm_device *dev = crtc->dev; |
5bb61643 | 3917 | struct drm_i915_private *dev_priv = dev->dev_private; |
5008e874 | 3918 | long ret; |
e6c3a2a6 | 3919 | |
2c10d571 | 3920 | WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue)); |
5008e874 ML |
3921 | |
3922 | ret = wait_event_interruptible_timeout( | |
3923 | dev_priv->pending_flip_queue, | |
3924 | !intel_crtc_has_pending_flip(crtc), | |
3925 | 60*HZ); | |
3926 | ||
3927 | if (ret < 0) | |
3928 | return ret; | |
3929 | ||
3930 | if (ret == 0) { | |
9c787942 | 3931 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
2c10d571 | 3932 | |
5e2d7afc | 3933 | spin_lock_irq(&dev->event_lock); |
9c787942 CW |
3934 | if (intel_crtc->unpin_work) { |
3935 | WARN_ONCE(1, "Removing stuck page flip\n"); | |
3936 | page_flip_completed(intel_crtc); | |
3937 | } | |
5e2d7afc | 3938 | spin_unlock_irq(&dev->event_lock); |
9c787942 | 3939 | } |
5bb61643 | 3940 | |
5008e874 | 3941 | return 0; |
e6c3a2a6 CW |
3942 | } |
3943 | ||
060f02d8 VS |
3944 | static void lpt_disable_iclkip(struct drm_i915_private *dev_priv) |
3945 | { | |
3946 | u32 temp; | |
3947 | ||
3948 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
3949 | ||
3950 | mutex_lock(&dev_priv->sb_lock); | |
3951 | ||
3952 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK); | |
3953 | temp |= SBI_SSCCTL_DISABLE; | |
3954 | intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK); | |
3955 | ||
3956 | mutex_unlock(&dev_priv->sb_lock); | |
3957 | } | |
3958 | ||
e615efe4 ED |
3959 | /* Program iCLKIP clock to the desired frequency */ |
3960 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
3961 | { | |
3962 | struct drm_device *dev = crtc->dev; | |
3963 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 3964 | int clock = to_intel_crtc(crtc)->config->base.adjusted_mode.crtc_clock; |
e615efe4 ED |
3965 | u32 divsel, phaseinc, auxdiv, phasedir = 0; |
3966 | u32 temp; | |
3967 | ||
060f02d8 | 3968 | lpt_disable_iclkip(dev_priv); |
e615efe4 ED |
3969 | |
3970 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
12d7ceed | 3971 | if (clock == 20000) { |
e615efe4 ED |
3972 | auxdiv = 1; |
3973 | divsel = 0x41; | |
3974 | phaseinc = 0x20; | |
3975 | } else { | |
3976 | /* The iCLK virtual clock root frequency is in MHz, | |
241bfc38 DL |
3977 | * but the adjusted_mode->crtc_clock in in KHz. To get the |
3978 | * divisors, it is necessary to divide one by another, so we | |
e615efe4 ED |
3979 | * convert the virtual clock precision to KHz here for higher |
3980 | * precision. | |
3981 | */ | |
3982 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
3983 | u32 iclk_pi_range = 64; | |
3984 | u32 desired_divisor, msb_divisor_value, pi_value; | |
3985 | ||
a2572f5c | 3986 | desired_divisor = DIV_ROUND_CLOSEST(iclk_virtual_root_freq, clock); |
e615efe4 ED |
3987 | msb_divisor_value = desired_divisor / iclk_pi_range; |
3988 | pi_value = desired_divisor % iclk_pi_range; | |
3989 | ||
3990 | auxdiv = 0; | |
3991 | divsel = msb_divisor_value - 2; | |
3992 | phaseinc = pi_value; | |
3993 | } | |
3994 | ||
3995 | /* This should not happen with any sane values */ | |
3996 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
3997 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
3998 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
3999 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
4000 | ||
4001 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
12d7ceed | 4002 | clock, |
e615efe4 ED |
4003 | auxdiv, |
4004 | divsel, | |
4005 | phasedir, | |
4006 | phaseinc); | |
4007 | ||
060f02d8 VS |
4008 | mutex_lock(&dev_priv->sb_lock); |
4009 | ||
e615efe4 | 4010 | /* Program SSCDIVINTPHASE6 */ |
988d6ee8 | 4011 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK); |
e615efe4 ED |
4012 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; |
4013 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
4014 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
4015 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
4016 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
4017 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
988d6ee8 | 4018 | intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK); |
e615efe4 ED |
4019 | |
4020 | /* Program SSCAUXDIV */ | |
988d6ee8 | 4021 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK); |
e615efe4 ED |
4022 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); |
4023 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
988d6ee8 | 4024 | intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK); |
e615efe4 ED |
4025 | |
4026 | /* Enable modulator and associated divider */ | |
988d6ee8 | 4027 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK); |
e615efe4 | 4028 | temp &= ~SBI_SSCCTL_DISABLE; |
988d6ee8 | 4029 | intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK); |
e615efe4 | 4030 | |
060f02d8 VS |
4031 | mutex_unlock(&dev_priv->sb_lock); |
4032 | ||
e615efe4 ED |
4033 | /* Wait for initialization time */ |
4034 | udelay(24); | |
4035 | ||
4036 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
4037 | } | |
4038 | ||
275f01b2 DV |
4039 | static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc, |
4040 | enum pipe pch_transcoder) | |
4041 | { | |
4042 | struct drm_device *dev = crtc->base.dev; | |
4043 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 4044 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
275f01b2 DV |
4045 | |
4046 | I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder), | |
4047 | I915_READ(HTOTAL(cpu_transcoder))); | |
4048 | I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder), | |
4049 | I915_READ(HBLANK(cpu_transcoder))); | |
4050 | I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder), | |
4051 | I915_READ(HSYNC(cpu_transcoder))); | |
4052 | ||
4053 | I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder), | |
4054 | I915_READ(VTOTAL(cpu_transcoder))); | |
4055 | I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder), | |
4056 | I915_READ(VBLANK(cpu_transcoder))); | |
4057 | I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder), | |
4058 | I915_READ(VSYNC(cpu_transcoder))); | |
4059 | I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder), | |
4060 | I915_READ(VSYNCSHIFT(cpu_transcoder))); | |
4061 | } | |
4062 | ||
003632d9 | 4063 | static void cpt_set_fdi_bc_bifurcation(struct drm_device *dev, bool enable) |
1fbc0d78 DV |
4064 | { |
4065 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4066 | uint32_t temp; | |
4067 | ||
4068 | temp = I915_READ(SOUTH_CHICKEN1); | |
003632d9 | 4069 | if (!!(temp & FDI_BC_BIFURCATION_SELECT) == enable) |
1fbc0d78 DV |
4070 | return; |
4071 | ||
4072 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); | |
4073 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
4074 | ||
003632d9 ACO |
4075 | temp &= ~FDI_BC_BIFURCATION_SELECT; |
4076 | if (enable) | |
4077 | temp |= FDI_BC_BIFURCATION_SELECT; | |
4078 | ||
4079 | DRM_DEBUG_KMS("%sabling fdi C rx\n", enable ? "en" : "dis"); | |
1fbc0d78 DV |
4080 | I915_WRITE(SOUTH_CHICKEN1, temp); |
4081 | POSTING_READ(SOUTH_CHICKEN1); | |
4082 | } | |
4083 | ||
4084 | static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc) | |
4085 | { | |
4086 | struct drm_device *dev = intel_crtc->base.dev; | |
1fbc0d78 DV |
4087 | |
4088 | switch (intel_crtc->pipe) { | |
4089 | case PIPE_A: | |
4090 | break; | |
4091 | case PIPE_B: | |
6e3c9717 | 4092 | if (intel_crtc->config->fdi_lanes > 2) |
003632d9 | 4093 | cpt_set_fdi_bc_bifurcation(dev, false); |
1fbc0d78 | 4094 | else |
003632d9 | 4095 | cpt_set_fdi_bc_bifurcation(dev, true); |
1fbc0d78 DV |
4096 | |
4097 | break; | |
4098 | case PIPE_C: | |
003632d9 | 4099 | cpt_set_fdi_bc_bifurcation(dev, true); |
1fbc0d78 DV |
4100 | |
4101 | break; | |
4102 | default: | |
4103 | BUG(); | |
4104 | } | |
4105 | } | |
4106 | ||
c48b5305 VS |
4107 | /* Return which DP Port should be selected for Transcoder DP control */ |
4108 | static enum port | |
4109 | intel_trans_dp_port_sel(struct drm_crtc *crtc) | |
4110 | { | |
4111 | struct drm_device *dev = crtc->dev; | |
4112 | struct intel_encoder *encoder; | |
4113 | ||
4114 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
4115 | if (encoder->type == INTEL_OUTPUT_DISPLAYPORT || | |
4116 | encoder->type == INTEL_OUTPUT_EDP) | |
4117 | return enc_to_dig_port(&encoder->base)->port; | |
4118 | } | |
4119 | ||
4120 | return -1; | |
4121 | } | |
4122 | ||
f67a559d JB |
4123 | /* |
4124 | * Enable PCH resources required for PCH ports: | |
4125 | * - PCH PLLs | |
4126 | * - FDI training & RX/TX | |
4127 | * - update transcoder timings | |
4128 | * - DP transcoding bits | |
4129 | * - transcoder | |
4130 | */ | |
4131 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
4132 | { |
4133 | struct drm_device *dev = crtc->dev; | |
4134 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4135 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4136 | int pipe = intel_crtc->pipe; | |
f0f59a00 | 4137 | u32 temp; |
2c07245f | 4138 | |
ab9412ba | 4139 | assert_pch_transcoder_disabled(dev_priv, pipe); |
e7e164db | 4140 | |
1fbc0d78 DV |
4141 | if (IS_IVYBRIDGE(dev)) |
4142 | ivybridge_update_fdi_bc_bifurcation(intel_crtc); | |
4143 | ||
cd986abb DV |
4144 | /* Write the TU size bits before fdi link training, so that error |
4145 | * detection works. */ | |
4146 | I915_WRITE(FDI_RX_TUSIZE1(pipe), | |
4147 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
4148 | ||
3860b2ec VS |
4149 | /* |
4150 | * Sometimes spurious CPU pipe underruns happen during FDI | |
4151 | * training, at least with VGA+HDMI cloning. Suppress them. | |
4152 | */ | |
4153 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); | |
4154 | ||
c98e9dcf | 4155 | /* For PCH output, training FDI link */ |
674cf967 | 4156 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 4157 | |
3ad8a208 DV |
4158 | /* We need to program the right clock selection before writing the pixel |
4159 | * mutliplier into the DPLL. */ | |
303b81e0 | 4160 | if (HAS_PCH_CPT(dev)) { |
ee7b9f93 | 4161 | u32 sel; |
4b645f14 | 4162 | |
c98e9dcf | 4163 | temp = I915_READ(PCH_DPLL_SEL); |
11887397 DV |
4164 | temp |= TRANS_DPLL_ENABLE(pipe); |
4165 | sel = TRANS_DPLLB_SEL(pipe); | |
6e3c9717 | 4166 | if (intel_crtc->config->shared_dpll == DPLL_ID_PCH_PLL_B) |
ee7b9f93 JB |
4167 | temp |= sel; |
4168 | else | |
4169 | temp &= ~sel; | |
c98e9dcf | 4170 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 4171 | } |
5eddb70b | 4172 | |
3ad8a208 DV |
4173 | /* XXX: pch pll's can be enabled any time before we enable the PCH |
4174 | * transcoder, and we actually should do this to not upset any PCH | |
4175 | * transcoder that already use the clock when we share it. | |
4176 | * | |
4177 | * Note that enable_shared_dpll tries to do the right thing, but | |
4178 | * get_shared_dpll unconditionally resets the pll - we need that to have | |
4179 | * the right LVDS enable sequence. */ | |
85b3894f | 4180 | intel_enable_shared_dpll(intel_crtc); |
3ad8a208 | 4181 | |
d9b6cb56 JB |
4182 | /* set transcoder timing, panel must allow it */ |
4183 | assert_panel_unlocked(dev_priv, pipe); | |
275f01b2 | 4184 | ironlake_pch_transcoder_set_timings(intel_crtc, pipe); |
8db9d77b | 4185 | |
303b81e0 | 4186 | intel_fdi_normal_train(crtc); |
5e84e1a4 | 4187 | |
3860b2ec VS |
4188 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4189 | ||
c98e9dcf | 4190 | /* For PCH DP, enable TRANS_DP_CTL */ |
6e3c9717 | 4191 | if (HAS_PCH_CPT(dev) && intel_crtc->config->has_dp_encoder) { |
9c4edaee VS |
4192 | const struct drm_display_mode *adjusted_mode = |
4193 | &intel_crtc->config->base.adjusted_mode; | |
dfd07d72 | 4194 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5; |
f0f59a00 | 4195 | i915_reg_t reg = TRANS_DP_CTL(pipe); |
5eddb70b CW |
4196 | temp = I915_READ(reg); |
4197 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
4198 | TRANS_DP_SYNC_MASK | |
4199 | TRANS_DP_BPC_MASK); | |
e3ef4479 | 4200 | temp |= TRANS_DP_OUTPUT_ENABLE; |
9325c9f0 | 4201 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf | 4202 | |
9c4edaee | 4203 | if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) |
5eddb70b | 4204 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
9c4edaee | 4205 | if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 4206 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
4207 | |
4208 | switch (intel_trans_dp_port_sel(crtc)) { | |
c48b5305 | 4209 | case PORT_B: |
5eddb70b | 4210 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf | 4211 | break; |
c48b5305 | 4212 | case PORT_C: |
5eddb70b | 4213 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf | 4214 | break; |
c48b5305 | 4215 | case PORT_D: |
5eddb70b | 4216 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
4217 | break; |
4218 | default: | |
e95d41e1 | 4219 | BUG(); |
32f9d658 | 4220 | } |
2c07245f | 4221 | |
5eddb70b | 4222 | I915_WRITE(reg, temp); |
6be4a607 | 4223 | } |
b52eb4dc | 4224 | |
b8a4f404 | 4225 | ironlake_enable_pch_transcoder(dev_priv, pipe); |
f67a559d JB |
4226 | } |
4227 | ||
1507e5bd PZ |
4228 | static void lpt_pch_enable(struct drm_crtc *crtc) |
4229 | { | |
4230 | struct drm_device *dev = crtc->dev; | |
4231 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4232 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6e3c9717 | 4233 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
1507e5bd | 4234 | |
ab9412ba | 4235 | assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A); |
1507e5bd | 4236 | |
8c52b5e8 | 4237 | lpt_program_iclkip(crtc); |
1507e5bd | 4238 | |
0540e488 | 4239 | /* Set transcoder timing. */ |
275f01b2 | 4240 | ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A); |
1507e5bd | 4241 | |
937bb610 | 4242 | lpt_enable_pch_transcoder(dev_priv, cpu_transcoder); |
f67a559d JB |
4243 | } |
4244 | ||
190f68c5 ACO |
4245 | struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc, |
4246 | struct intel_crtc_state *crtc_state) | |
ee7b9f93 | 4247 | { |
e2b78267 | 4248 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; |
8bd31e67 | 4249 | struct intel_shared_dpll *pll; |
de419ab6 | 4250 | struct intel_shared_dpll_config *shared_dpll; |
e2b78267 | 4251 | enum intel_dpll_id i; |
00490c22 | 4252 | int max = dev_priv->num_shared_dpll; |
ee7b9f93 | 4253 | |
de419ab6 ML |
4254 | shared_dpll = intel_atomic_get_shared_dpll_state(crtc_state->base.state); |
4255 | ||
98b6bd99 DV |
4256 | if (HAS_PCH_IBX(dev_priv->dev)) { |
4257 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
d94ab068 | 4258 | i = (enum intel_dpll_id) crtc->pipe; |
e72f9fbf | 4259 | pll = &dev_priv->shared_dplls[i]; |
98b6bd99 | 4260 | |
46edb027 DV |
4261 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n", |
4262 | crtc->base.base.id, pll->name); | |
98b6bd99 | 4263 | |
de419ab6 | 4264 | WARN_ON(shared_dpll[i].crtc_mask); |
f2a69f44 | 4265 | |
98b6bd99 DV |
4266 | goto found; |
4267 | } | |
4268 | ||
bcddf610 S |
4269 | if (IS_BROXTON(dev_priv->dev)) { |
4270 | /* PLL is attached to port in bxt */ | |
4271 | struct intel_encoder *encoder; | |
4272 | struct intel_digital_port *intel_dig_port; | |
4273 | ||
4274 | encoder = intel_ddi_get_crtc_new_encoder(crtc_state); | |
4275 | if (WARN_ON(!encoder)) | |
4276 | return NULL; | |
4277 | ||
4278 | intel_dig_port = enc_to_dig_port(&encoder->base); | |
4279 | /* 1:1 mapping between ports and PLLs */ | |
4280 | i = (enum intel_dpll_id)intel_dig_port->port; | |
4281 | pll = &dev_priv->shared_dplls[i]; | |
4282 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n", | |
4283 | crtc->base.base.id, pll->name); | |
de419ab6 | 4284 | WARN_ON(shared_dpll[i].crtc_mask); |
bcddf610 S |
4285 | |
4286 | goto found; | |
00490c22 ML |
4287 | } else if (INTEL_INFO(dev_priv)->gen < 9 && HAS_DDI(dev_priv)) |
4288 | /* Do not consider SPLL */ | |
4289 | max = 2; | |
bcddf610 | 4290 | |
00490c22 | 4291 | for (i = 0; i < max; i++) { |
e72f9fbf | 4292 | pll = &dev_priv->shared_dplls[i]; |
ee7b9f93 JB |
4293 | |
4294 | /* Only want to check enabled timings first */ | |
de419ab6 | 4295 | if (shared_dpll[i].crtc_mask == 0) |
ee7b9f93 JB |
4296 | continue; |
4297 | ||
190f68c5 | 4298 | if (memcmp(&crtc_state->dpll_hw_state, |
de419ab6 ML |
4299 | &shared_dpll[i].hw_state, |
4300 | sizeof(crtc_state->dpll_hw_state)) == 0) { | |
8bd31e67 | 4301 | DRM_DEBUG_KMS("CRTC:%d sharing existing %s (crtc mask 0x%08x, ative %d)\n", |
1e6f2ddc | 4302 | crtc->base.base.id, pll->name, |
de419ab6 | 4303 | shared_dpll[i].crtc_mask, |
8bd31e67 | 4304 | pll->active); |
ee7b9f93 JB |
4305 | goto found; |
4306 | } | |
4307 | } | |
4308 | ||
4309 | /* Ok no matching timings, maybe there's a free one? */ | |
e72f9fbf DV |
4310 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
4311 | pll = &dev_priv->shared_dplls[i]; | |
de419ab6 | 4312 | if (shared_dpll[i].crtc_mask == 0) { |
46edb027 DV |
4313 | DRM_DEBUG_KMS("CRTC:%d allocated %s\n", |
4314 | crtc->base.base.id, pll->name); | |
ee7b9f93 JB |
4315 | goto found; |
4316 | } | |
4317 | } | |
4318 | ||
4319 | return NULL; | |
4320 | ||
4321 | found: | |
de419ab6 ML |
4322 | if (shared_dpll[i].crtc_mask == 0) |
4323 | shared_dpll[i].hw_state = | |
4324 | crtc_state->dpll_hw_state; | |
f2a69f44 | 4325 | |
190f68c5 | 4326 | crtc_state->shared_dpll = i; |
46edb027 DV |
4327 | DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name, |
4328 | pipe_name(crtc->pipe)); | |
ee7b9f93 | 4329 | |
de419ab6 | 4330 | shared_dpll[i].crtc_mask |= 1 << crtc->pipe; |
e04c7350 | 4331 | |
ee7b9f93 JB |
4332 | return pll; |
4333 | } | |
4334 | ||
de419ab6 | 4335 | static void intel_shared_dpll_commit(struct drm_atomic_state *state) |
8bd31e67 | 4336 | { |
de419ab6 ML |
4337 | struct drm_i915_private *dev_priv = to_i915(state->dev); |
4338 | struct intel_shared_dpll_config *shared_dpll; | |
8bd31e67 ACO |
4339 | struct intel_shared_dpll *pll; |
4340 | enum intel_dpll_id i; | |
4341 | ||
de419ab6 ML |
4342 | if (!to_intel_atomic_state(state)->dpll_set) |
4343 | return; | |
8bd31e67 | 4344 | |
de419ab6 | 4345 | shared_dpll = to_intel_atomic_state(state)->shared_dpll; |
8bd31e67 ACO |
4346 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
4347 | pll = &dev_priv->shared_dplls[i]; | |
de419ab6 | 4348 | pll->config = shared_dpll[i]; |
8bd31e67 ACO |
4349 | } |
4350 | } | |
4351 | ||
a1520318 | 4352 | static void cpt_verify_modeset(struct drm_device *dev, int pipe) |
d4270e57 JB |
4353 | { |
4354 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f0f59a00 | 4355 | i915_reg_t dslreg = PIPEDSL(pipe); |
d4270e57 JB |
4356 | u32 temp; |
4357 | ||
4358 | temp = I915_READ(dslreg); | |
4359 | udelay(500); | |
4360 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
d4270e57 | 4361 | if (wait_for(I915_READ(dslreg) != temp, 5)) |
84f44ce7 | 4362 | DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe)); |
d4270e57 JB |
4363 | } |
4364 | } | |
4365 | ||
86adf9d7 ML |
4366 | static int |
4367 | skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach, | |
4368 | unsigned scaler_user, int *scaler_id, unsigned int rotation, | |
4369 | int src_w, int src_h, int dst_w, int dst_h) | |
a1b2278e | 4370 | { |
86adf9d7 ML |
4371 | struct intel_crtc_scaler_state *scaler_state = |
4372 | &crtc_state->scaler_state; | |
4373 | struct intel_crtc *intel_crtc = | |
4374 | to_intel_crtc(crtc_state->base.crtc); | |
a1b2278e | 4375 | int need_scaling; |
6156a456 CK |
4376 | |
4377 | need_scaling = intel_rotation_90_or_270(rotation) ? | |
4378 | (src_h != dst_w || src_w != dst_h): | |
4379 | (src_w != dst_w || src_h != dst_h); | |
a1b2278e CK |
4380 | |
4381 | /* | |
4382 | * if plane is being disabled or scaler is no more required or force detach | |
4383 | * - free scaler binded to this plane/crtc | |
4384 | * - in order to do this, update crtc->scaler_usage | |
4385 | * | |
4386 | * Here scaler state in crtc_state is set free so that | |
4387 | * scaler can be assigned to other user. Actual register | |
4388 | * update to free the scaler is done in plane/panel-fit programming. | |
4389 | * For this purpose crtc/plane_state->scaler_id isn't reset here. | |
4390 | */ | |
86adf9d7 | 4391 | if (force_detach || !need_scaling) { |
a1b2278e | 4392 | if (*scaler_id >= 0) { |
86adf9d7 | 4393 | scaler_state->scaler_users &= ~(1 << scaler_user); |
a1b2278e CK |
4394 | scaler_state->scalers[*scaler_id].in_use = 0; |
4395 | ||
86adf9d7 ML |
4396 | DRM_DEBUG_KMS("scaler_user index %u.%u: " |
4397 | "Staged freeing scaler id %d scaler_users = 0x%x\n", | |
4398 | intel_crtc->pipe, scaler_user, *scaler_id, | |
a1b2278e CK |
4399 | scaler_state->scaler_users); |
4400 | *scaler_id = -1; | |
4401 | } | |
4402 | return 0; | |
4403 | } | |
4404 | ||
4405 | /* range checks */ | |
4406 | if (src_w < SKL_MIN_SRC_W || src_h < SKL_MIN_SRC_H || | |
4407 | dst_w < SKL_MIN_DST_W || dst_h < SKL_MIN_DST_H || | |
4408 | ||
4409 | src_w > SKL_MAX_SRC_W || src_h > SKL_MAX_SRC_H || | |
4410 | dst_w > SKL_MAX_DST_W || dst_h > SKL_MAX_DST_H) { | |
86adf9d7 | 4411 | DRM_DEBUG_KMS("scaler_user index %u.%u: src %ux%u dst %ux%u " |
a1b2278e | 4412 | "size is out of scaler range\n", |
86adf9d7 | 4413 | intel_crtc->pipe, scaler_user, src_w, src_h, dst_w, dst_h); |
a1b2278e CK |
4414 | return -EINVAL; |
4415 | } | |
4416 | ||
86adf9d7 ML |
4417 | /* mark this plane as a scaler user in crtc_state */ |
4418 | scaler_state->scaler_users |= (1 << scaler_user); | |
4419 | DRM_DEBUG_KMS("scaler_user index %u.%u: " | |
4420 | "staged scaling request for %ux%u->%ux%u scaler_users = 0x%x\n", | |
4421 | intel_crtc->pipe, scaler_user, src_w, src_h, dst_w, dst_h, | |
4422 | scaler_state->scaler_users); | |
4423 | ||
4424 | return 0; | |
4425 | } | |
4426 | ||
4427 | /** | |
4428 | * skl_update_scaler_crtc - Stages update to scaler state for a given crtc. | |
4429 | * | |
4430 | * @state: crtc's scaler state | |
86adf9d7 ML |
4431 | * |
4432 | * Return | |
4433 | * 0 - scaler_usage updated successfully | |
4434 | * error - requested scaling cannot be supported or other error condition | |
4435 | */ | |
e435d6e5 | 4436 | int skl_update_scaler_crtc(struct intel_crtc_state *state) |
86adf9d7 ML |
4437 | { |
4438 | struct intel_crtc *intel_crtc = to_intel_crtc(state->base.crtc); | |
7c5f93b0 | 4439 | const struct drm_display_mode *adjusted_mode = &state->base.adjusted_mode; |
86adf9d7 ML |
4440 | |
4441 | DRM_DEBUG_KMS("Updating scaler for [CRTC:%i] scaler_user index %u.%u\n", | |
4442 | intel_crtc->base.base.id, intel_crtc->pipe, SKL_CRTC_INDEX); | |
4443 | ||
e435d6e5 | 4444 | return skl_update_scaler(state, !state->base.active, SKL_CRTC_INDEX, |
86adf9d7 ML |
4445 | &state->scaler_state.scaler_id, DRM_ROTATE_0, |
4446 | state->pipe_src_w, state->pipe_src_h, | |
aad941d5 | 4447 | adjusted_mode->crtc_hdisplay, adjusted_mode->crtc_vdisplay); |
86adf9d7 ML |
4448 | } |
4449 | ||
4450 | /** | |
4451 | * skl_update_scaler_plane - Stages update to scaler state for a given plane. | |
4452 | * | |
4453 | * @state: crtc's scaler state | |
86adf9d7 ML |
4454 | * @plane_state: atomic plane state to update |
4455 | * | |
4456 | * Return | |
4457 | * 0 - scaler_usage updated successfully | |
4458 | * error - requested scaling cannot be supported or other error condition | |
4459 | */ | |
da20eabd ML |
4460 | static int skl_update_scaler_plane(struct intel_crtc_state *crtc_state, |
4461 | struct intel_plane_state *plane_state) | |
86adf9d7 ML |
4462 | { |
4463 | ||
4464 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); | |
da20eabd ML |
4465 | struct intel_plane *intel_plane = |
4466 | to_intel_plane(plane_state->base.plane); | |
86adf9d7 ML |
4467 | struct drm_framebuffer *fb = plane_state->base.fb; |
4468 | int ret; | |
4469 | ||
4470 | bool force_detach = !fb || !plane_state->visible; | |
4471 | ||
4472 | DRM_DEBUG_KMS("Updating scaler for [PLANE:%d] scaler_user index %u.%u\n", | |
4473 | intel_plane->base.base.id, intel_crtc->pipe, | |
4474 | drm_plane_index(&intel_plane->base)); | |
4475 | ||
4476 | ret = skl_update_scaler(crtc_state, force_detach, | |
4477 | drm_plane_index(&intel_plane->base), | |
4478 | &plane_state->scaler_id, | |
4479 | plane_state->base.rotation, | |
4480 | drm_rect_width(&plane_state->src) >> 16, | |
4481 | drm_rect_height(&plane_state->src) >> 16, | |
4482 | drm_rect_width(&plane_state->dst), | |
4483 | drm_rect_height(&plane_state->dst)); | |
4484 | ||
4485 | if (ret || plane_state->scaler_id < 0) | |
4486 | return ret; | |
4487 | ||
a1b2278e | 4488 | /* check colorkey */ |
818ed961 | 4489 | if (plane_state->ckey.flags != I915_SET_COLORKEY_NONE) { |
86adf9d7 | 4490 | DRM_DEBUG_KMS("[PLANE:%d] scaling with color key not allowed", |
818ed961 | 4491 | intel_plane->base.base.id); |
a1b2278e CK |
4492 | return -EINVAL; |
4493 | } | |
4494 | ||
4495 | /* Check src format */ | |
86adf9d7 ML |
4496 | switch (fb->pixel_format) { |
4497 | case DRM_FORMAT_RGB565: | |
4498 | case DRM_FORMAT_XBGR8888: | |
4499 | case DRM_FORMAT_XRGB8888: | |
4500 | case DRM_FORMAT_ABGR8888: | |
4501 | case DRM_FORMAT_ARGB8888: | |
4502 | case DRM_FORMAT_XRGB2101010: | |
4503 | case DRM_FORMAT_XBGR2101010: | |
4504 | case DRM_FORMAT_YUYV: | |
4505 | case DRM_FORMAT_YVYU: | |
4506 | case DRM_FORMAT_UYVY: | |
4507 | case DRM_FORMAT_VYUY: | |
4508 | break; | |
4509 | default: | |
4510 | DRM_DEBUG_KMS("[PLANE:%d] FB:%d unsupported scaling format 0x%x\n", | |
4511 | intel_plane->base.base.id, fb->base.id, fb->pixel_format); | |
4512 | return -EINVAL; | |
a1b2278e CK |
4513 | } |
4514 | ||
a1b2278e CK |
4515 | return 0; |
4516 | } | |
4517 | ||
e435d6e5 ML |
4518 | static void skylake_scaler_disable(struct intel_crtc *crtc) |
4519 | { | |
4520 | int i; | |
4521 | ||
4522 | for (i = 0; i < crtc->num_scalers; i++) | |
4523 | skl_detach_scaler(crtc, i); | |
4524 | } | |
4525 | ||
4526 | static void skylake_pfit_enable(struct intel_crtc *crtc) | |
bd2e244f JB |
4527 | { |
4528 | struct drm_device *dev = crtc->base.dev; | |
4529 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4530 | int pipe = crtc->pipe; | |
a1b2278e CK |
4531 | struct intel_crtc_scaler_state *scaler_state = |
4532 | &crtc->config->scaler_state; | |
4533 | ||
4534 | DRM_DEBUG_KMS("for crtc_state = %p\n", crtc->config); | |
4535 | ||
6e3c9717 | 4536 | if (crtc->config->pch_pfit.enabled) { |
a1b2278e CK |
4537 | int id; |
4538 | ||
4539 | if (WARN_ON(crtc->config->scaler_state.scaler_id < 0)) { | |
4540 | DRM_ERROR("Requesting pfit without getting a scaler first\n"); | |
4541 | return; | |
4542 | } | |
4543 | ||
4544 | id = scaler_state->scaler_id; | |
4545 | I915_WRITE(SKL_PS_CTRL(pipe, id), PS_SCALER_EN | | |
4546 | PS_FILTER_MEDIUM | scaler_state->scalers[id].mode); | |
4547 | I915_WRITE(SKL_PS_WIN_POS(pipe, id), crtc->config->pch_pfit.pos); | |
4548 | I915_WRITE(SKL_PS_WIN_SZ(pipe, id), crtc->config->pch_pfit.size); | |
4549 | ||
4550 | DRM_DEBUG_KMS("for crtc_state = %p scaler_id = %d\n", crtc->config, id); | |
bd2e244f JB |
4551 | } |
4552 | } | |
4553 | ||
b074cec8 JB |
4554 | static void ironlake_pfit_enable(struct intel_crtc *crtc) |
4555 | { | |
4556 | struct drm_device *dev = crtc->base.dev; | |
4557 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4558 | int pipe = crtc->pipe; | |
4559 | ||
6e3c9717 | 4560 | if (crtc->config->pch_pfit.enabled) { |
b074cec8 JB |
4561 | /* Force use of hard-coded filter coefficients |
4562 | * as some pre-programmed values are broken, | |
4563 | * e.g. x201. | |
4564 | */ | |
4565 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) | |
4566 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 | | |
4567 | PF_PIPE_SEL_IVB(pipe)); | |
4568 | else | |
4569 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); | |
6e3c9717 ACO |
4570 | I915_WRITE(PF_WIN_POS(pipe), crtc->config->pch_pfit.pos); |
4571 | I915_WRITE(PF_WIN_SZ(pipe), crtc->config->pch_pfit.size); | |
d4270e57 JB |
4572 | } |
4573 | } | |
4574 | ||
20bc8673 | 4575 | void hsw_enable_ips(struct intel_crtc *crtc) |
d77e4531 | 4576 | { |
cea165c3 VS |
4577 | struct drm_device *dev = crtc->base.dev; |
4578 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d77e4531 | 4579 | |
6e3c9717 | 4580 | if (!crtc->config->ips_enabled) |
d77e4531 PZ |
4581 | return; |
4582 | ||
cea165c3 VS |
4583 | /* We can only enable IPS after we enable a plane and wait for a vblank */ |
4584 | intel_wait_for_vblank(dev, crtc->pipe); | |
4585 | ||
d77e4531 | 4586 | assert_plane_enabled(dev_priv, crtc->plane); |
cea165c3 | 4587 | if (IS_BROADWELL(dev)) { |
2a114cc1 BW |
4588 | mutex_lock(&dev_priv->rps.hw_lock); |
4589 | WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0xc0000000)); | |
4590 | mutex_unlock(&dev_priv->rps.hw_lock); | |
4591 | /* Quoting Art Runyan: "its not safe to expect any particular | |
4592 | * value in IPS_CTL bit 31 after enabling IPS through the | |
e59150dc JB |
4593 | * mailbox." Moreover, the mailbox may return a bogus state, |
4594 | * so we need to just enable it and continue on. | |
2a114cc1 BW |
4595 | */ |
4596 | } else { | |
4597 | I915_WRITE(IPS_CTL, IPS_ENABLE); | |
4598 | /* The bit only becomes 1 in the next vblank, so this wait here | |
4599 | * is essentially intel_wait_for_vblank. If we don't have this | |
4600 | * and don't wait for vblanks until the end of crtc_enable, then | |
4601 | * the HW state readout code will complain that the expected | |
4602 | * IPS_CTL value is not the one we read. */ | |
4603 | if (wait_for(I915_READ_NOTRACE(IPS_CTL) & IPS_ENABLE, 50)) | |
4604 | DRM_ERROR("Timed out waiting for IPS enable\n"); | |
4605 | } | |
d77e4531 PZ |
4606 | } |
4607 | ||
20bc8673 | 4608 | void hsw_disable_ips(struct intel_crtc *crtc) |
d77e4531 PZ |
4609 | { |
4610 | struct drm_device *dev = crtc->base.dev; | |
4611 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4612 | ||
6e3c9717 | 4613 | if (!crtc->config->ips_enabled) |
d77e4531 PZ |
4614 | return; |
4615 | ||
4616 | assert_plane_enabled(dev_priv, crtc->plane); | |
23d0b130 | 4617 | if (IS_BROADWELL(dev)) { |
2a114cc1 BW |
4618 | mutex_lock(&dev_priv->rps.hw_lock); |
4619 | WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0)); | |
4620 | mutex_unlock(&dev_priv->rps.hw_lock); | |
23d0b130 BW |
4621 | /* wait for pcode to finish disabling IPS, which may take up to 42ms */ |
4622 | if (wait_for((I915_READ(IPS_CTL) & IPS_ENABLE) == 0, 42)) | |
4623 | DRM_ERROR("Timed out waiting for IPS disable\n"); | |
e59150dc | 4624 | } else { |
2a114cc1 | 4625 | I915_WRITE(IPS_CTL, 0); |
e59150dc JB |
4626 | POSTING_READ(IPS_CTL); |
4627 | } | |
d77e4531 PZ |
4628 | |
4629 | /* We need to wait for a vblank before we can disable the plane. */ | |
4630 | intel_wait_for_vblank(dev, crtc->pipe); | |
4631 | } | |
4632 | ||
4633 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ | |
4634 | static void intel_crtc_load_lut(struct drm_crtc *crtc) | |
4635 | { | |
4636 | struct drm_device *dev = crtc->dev; | |
4637 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4638 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4639 | enum pipe pipe = intel_crtc->pipe; | |
d77e4531 PZ |
4640 | int i; |
4641 | bool reenable_ips = false; | |
4642 | ||
4643 | /* The clocks have to be on to load the palette. */ | |
53d9f4e9 | 4644 | if (!crtc->state->active) |
d77e4531 PZ |
4645 | return; |
4646 | ||
50360403 | 4647 | if (HAS_GMCH_DISPLAY(dev_priv->dev)) { |
a65347ba | 4648 | if (intel_crtc->config->has_dsi_encoder) |
d77e4531 PZ |
4649 | assert_dsi_pll_enabled(dev_priv); |
4650 | else | |
4651 | assert_pll_enabled(dev_priv, pipe); | |
4652 | } | |
4653 | ||
d77e4531 PZ |
4654 | /* Workaround : Do not read or write the pipe palette/gamma data while |
4655 | * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled. | |
4656 | */ | |
6e3c9717 | 4657 | if (IS_HASWELL(dev) && intel_crtc->config->ips_enabled && |
d77e4531 PZ |
4658 | ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) == |
4659 | GAMMA_MODE_MODE_SPLIT)) { | |
4660 | hsw_disable_ips(intel_crtc); | |
4661 | reenable_ips = true; | |
4662 | } | |
4663 | ||
4664 | for (i = 0; i < 256; i++) { | |
f0f59a00 | 4665 | i915_reg_t palreg; |
f65a9c5b VS |
4666 | |
4667 | if (HAS_GMCH_DISPLAY(dev)) | |
4668 | palreg = PALETTE(pipe, i); | |
4669 | else | |
4670 | palreg = LGC_PALETTE(pipe, i); | |
4671 | ||
4672 | I915_WRITE(palreg, | |
d77e4531 PZ |
4673 | (intel_crtc->lut_r[i] << 16) | |
4674 | (intel_crtc->lut_g[i] << 8) | | |
4675 | intel_crtc->lut_b[i]); | |
4676 | } | |
4677 | ||
4678 | if (reenable_ips) | |
4679 | hsw_enable_ips(intel_crtc); | |
4680 | } | |
4681 | ||
7cac945f | 4682 | static void intel_crtc_dpms_overlay_disable(struct intel_crtc *intel_crtc) |
d3eedb1a | 4683 | { |
7cac945f | 4684 | if (intel_crtc->overlay) { |
d3eedb1a VS |
4685 | struct drm_device *dev = intel_crtc->base.dev; |
4686 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4687 | ||
4688 | mutex_lock(&dev->struct_mutex); | |
4689 | dev_priv->mm.interruptible = false; | |
4690 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
4691 | dev_priv->mm.interruptible = true; | |
4692 | mutex_unlock(&dev->struct_mutex); | |
4693 | } | |
4694 | ||
4695 | /* Let userspace switch the overlay on again. In most cases userspace | |
4696 | * has to recompute where to put it anyway. | |
4697 | */ | |
4698 | } | |
4699 | ||
87d4300a ML |
4700 | /** |
4701 | * intel_post_enable_primary - Perform operations after enabling primary plane | |
4702 | * @crtc: the CRTC whose primary plane was just enabled | |
4703 | * | |
4704 | * Performs potentially sleeping operations that must be done after the primary | |
4705 | * plane is enabled, such as updating FBC and IPS. Note that this may be | |
4706 | * called due to an explicit primary plane update, or due to an implicit | |
4707 | * re-enable that is caused when a sprite plane is updated to no longer | |
4708 | * completely hide the primary plane. | |
4709 | */ | |
4710 | static void | |
4711 | intel_post_enable_primary(struct drm_crtc *crtc) | |
a5c4d7bc VS |
4712 | { |
4713 | struct drm_device *dev = crtc->dev; | |
87d4300a | 4714 | struct drm_i915_private *dev_priv = dev->dev_private; |
a5c4d7bc VS |
4715 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4716 | int pipe = intel_crtc->pipe; | |
a5c4d7bc | 4717 | |
87d4300a ML |
4718 | /* |
4719 | * FIXME IPS should be fine as long as one plane is | |
4720 | * enabled, but in practice it seems to have problems | |
4721 | * when going from primary only to sprite only and vice | |
4722 | * versa. | |
4723 | */ | |
a5c4d7bc VS |
4724 | hsw_enable_ips(intel_crtc); |
4725 | ||
f99d7069 | 4726 | /* |
87d4300a ML |
4727 | * Gen2 reports pipe underruns whenever all planes are disabled. |
4728 | * So don't enable underrun reporting before at least some planes | |
4729 | * are enabled. | |
4730 | * FIXME: Need to fix the logic to work when we turn off all planes | |
4731 | * but leave the pipe running. | |
f99d7069 | 4732 | */ |
87d4300a ML |
4733 | if (IS_GEN2(dev)) |
4734 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); | |
4735 | ||
aca7b684 VS |
4736 | /* Underruns don't always raise interrupts, so check manually. */ |
4737 | intel_check_cpu_fifo_underruns(dev_priv); | |
4738 | intel_check_pch_fifo_underruns(dev_priv); | |
a5c4d7bc VS |
4739 | } |
4740 | ||
87d4300a ML |
4741 | /** |
4742 | * intel_pre_disable_primary - Perform operations before disabling primary plane | |
4743 | * @crtc: the CRTC whose primary plane is to be disabled | |
4744 | * | |
4745 | * Performs potentially sleeping operations that must be done before the | |
4746 | * primary plane is disabled, such as updating FBC and IPS. Note that this may | |
4747 | * be called due to an explicit primary plane update, or due to an implicit | |
4748 | * disable that is caused when a sprite plane completely hides the primary | |
4749 | * plane. | |
4750 | */ | |
4751 | static void | |
4752 | intel_pre_disable_primary(struct drm_crtc *crtc) | |
a5c4d7bc VS |
4753 | { |
4754 | struct drm_device *dev = crtc->dev; | |
4755 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4756 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4757 | int pipe = intel_crtc->pipe; | |
a5c4d7bc | 4758 | |
87d4300a ML |
4759 | /* |
4760 | * Gen2 reports pipe underruns whenever all planes are disabled. | |
4761 | * So diasble underrun reporting before all the planes get disabled. | |
4762 | * FIXME: Need to fix the logic to work when we turn off all planes | |
4763 | * but leave the pipe running. | |
4764 | */ | |
4765 | if (IS_GEN2(dev)) | |
4766 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); | |
a5c4d7bc | 4767 | |
87d4300a ML |
4768 | /* |
4769 | * Vblank time updates from the shadow to live plane control register | |
4770 | * are blocked if the memory self-refresh mode is active at that | |
4771 | * moment. So to make sure the plane gets truly disabled, disable | |
4772 | * first the self-refresh mode. The self-refresh enable bit in turn | |
4773 | * will be checked/applied by the HW only at the next frame start | |
4774 | * event which is after the vblank start event, so we need to have a | |
4775 | * wait-for-vblank between disabling the plane and the pipe. | |
4776 | */ | |
262cd2e1 | 4777 | if (HAS_GMCH_DISPLAY(dev)) { |
87d4300a | 4778 | intel_set_memory_cxsr(dev_priv, false); |
262cd2e1 VS |
4779 | dev_priv->wm.vlv.cxsr = false; |
4780 | intel_wait_for_vblank(dev, pipe); | |
4781 | } | |
87d4300a | 4782 | |
87d4300a ML |
4783 | /* |
4784 | * FIXME IPS should be fine as long as one plane is | |
4785 | * enabled, but in practice it seems to have problems | |
4786 | * when going from primary only to sprite only and vice | |
4787 | * versa. | |
4788 | */ | |
a5c4d7bc | 4789 | hsw_disable_ips(intel_crtc); |
87d4300a ML |
4790 | } |
4791 | ||
ac21b225 ML |
4792 | static void intel_post_plane_update(struct intel_crtc *crtc) |
4793 | { | |
4794 | struct intel_crtc_atomic_commit *atomic = &crtc->atomic; | |
92826fcd ML |
4795 | struct intel_crtc_state *pipe_config = |
4796 | to_intel_crtc_state(crtc->base.state); | |
ac21b225 | 4797 | struct drm_device *dev = crtc->base.dev; |
ac21b225 ML |
4798 | |
4799 | if (atomic->wait_vblank) | |
4800 | intel_wait_for_vblank(dev, crtc->pipe); | |
4801 | ||
4802 | intel_frontbuffer_flip(dev, atomic->fb_bits); | |
4803 | ||
ab1d3a0e | 4804 | crtc->wm.cxsr_allowed = true; |
852eb00d | 4805 | |
b9001114 | 4806 | if (pipe_config->wm_changed && pipe_config->base.active) |
f015c551 VS |
4807 | intel_update_watermarks(&crtc->base); |
4808 | ||
c80ac854 | 4809 | if (atomic->update_fbc) |
754d1133 | 4810 | intel_fbc_update(crtc); |
ac21b225 ML |
4811 | |
4812 | if (atomic->post_enable_primary) | |
4813 | intel_post_enable_primary(&crtc->base); | |
4814 | ||
ac21b225 ML |
4815 | memset(atomic, 0, sizeof(*atomic)); |
4816 | } | |
4817 | ||
4818 | static void intel_pre_plane_update(struct intel_crtc *crtc) | |
4819 | { | |
4820 | struct drm_device *dev = crtc->base.dev; | |
eddfcbcd | 4821 | struct drm_i915_private *dev_priv = dev->dev_private; |
ac21b225 | 4822 | struct intel_crtc_atomic_commit *atomic = &crtc->atomic; |
ab1d3a0e ML |
4823 | struct intel_crtc_state *pipe_config = |
4824 | to_intel_crtc_state(crtc->base.state); | |
ac21b225 | 4825 | |
c80ac854 | 4826 | if (atomic->disable_fbc) |
d029bcad | 4827 | intel_fbc_deactivate(crtc); |
ac21b225 | 4828 | |
066cf55b RV |
4829 | if (crtc->atomic.disable_ips) |
4830 | hsw_disable_ips(crtc); | |
4831 | ||
ac21b225 ML |
4832 | if (atomic->pre_disable_primary) |
4833 | intel_pre_disable_primary(&crtc->base); | |
852eb00d | 4834 | |
ab1d3a0e | 4835 | if (pipe_config->disable_cxsr) { |
852eb00d VS |
4836 | crtc->wm.cxsr_allowed = false; |
4837 | intel_set_memory_cxsr(dev_priv, false); | |
4838 | } | |
92826fcd | 4839 | |
396e33ae MR |
4840 | /* |
4841 | * IVB workaround: must disable low power watermarks for at least | |
4842 | * one frame before enabling scaling. LP watermarks can be re-enabled | |
4843 | * when scaling is disabled. | |
4844 | * | |
4845 | * WaCxSRDisabledForSpriteScaling:ivb | |
4846 | */ | |
4847 | if (pipe_config->disable_lp_wm) { | |
4848 | ilk_disable_lp_wm(dev); | |
4849 | intel_wait_for_vblank(dev, crtc->pipe); | |
4850 | } | |
4851 | ||
4852 | /* | |
4853 | * If we're doing a modeset, we're done. No need to do any pre-vblank | |
4854 | * watermark programming here. | |
4855 | */ | |
4856 | if (needs_modeset(&pipe_config->base)) | |
4857 | return; | |
4858 | ||
4859 | /* | |
4860 | * For platforms that support atomic watermarks, program the | |
4861 | * 'intermediate' watermarks immediately. On pre-gen9 platforms, these | |
4862 | * will be the intermediate values that are safe for both pre- and | |
4863 | * post- vblank; when vblank happens, the 'active' values will be set | |
4864 | * to the final 'target' values and we'll do this again to get the | |
4865 | * optimal watermarks. For gen9+ platforms, the values we program here | |
4866 | * will be the final target values which will get automatically latched | |
4867 | * at vblank time; no further programming will be necessary. | |
4868 | * | |
4869 | * If a platform hasn't been transitioned to atomic watermarks yet, | |
4870 | * we'll continue to update watermarks the old way, if flags tell | |
4871 | * us to. | |
4872 | */ | |
4873 | if (dev_priv->display.initial_watermarks != NULL) | |
4874 | dev_priv->display.initial_watermarks(pipe_config); | |
4875 | else if (pipe_config->wm_changed) | |
92826fcd | 4876 | intel_update_watermarks(&crtc->base); |
ac21b225 ML |
4877 | } |
4878 | ||
d032ffa0 | 4879 | static void intel_crtc_disable_planes(struct drm_crtc *crtc, unsigned plane_mask) |
87d4300a ML |
4880 | { |
4881 | struct drm_device *dev = crtc->dev; | |
4882 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
d032ffa0 | 4883 | struct drm_plane *p; |
87d4300a ML |
4884 | int pipe = intel_crtc->pipe; |
4885 | ||
7cac945f | 4886 | intel_crtc_dpms_overlay_disable(intel_crtc); |
27321ae8 | 4887 | |
d032ffa0 ML |
4888 | drm_for_each_plane_mask(p, dev, plane_mask) |
4889 | to_intel_plane(p)->disable_plane(p, crtc); | |
f98551ae | 4890 | |
f99d7069 DV |
4891 | /* |
4892 | * FIXME: Once we grow proper nuclear flip support out of this we need | |
4893 | * to compute the mask of flip planes precisely. For the time being | |
4894 | * consider this a flip to a NULL plane. | |
4895 | */ | |
4896 | intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_ALL_MASK(pipe)); | |
a5c4d7bc VS |
4897 | } |
4898 | ||
f67a559d JB |
4899 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
4900 | { | |
4901 | struct drm_device *dev = crtc->dev; | |
4902 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4903 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 4904 | struct intel_encoder *encoder; |
f67a559d | 4905 | int pipe = intel_crtc->pipe; |
f67a559d | 4906 | |
53d9f4e9 | 4907 | if (WARN_ON(intel_crtc->active)) |
f67a559d JB |
4908 | return; |
4909 | ||
81b088ca VS |
4910 | if (intel_crtc->config->has_pch_encoder) |
4911 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false); | |
4912 | ||
6e3c9717 | 4913 | if (intel_crtc->config->has_pch_encoder) |
b14b1055 DV |
4914 | intel_prepare_shared_dpll(intel_crtc); |
4915 | ||
6e3c9717 | 4916 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 4917 | intel_dp_set_m_n(intel_crtc, M1_N1); |
29407aab DV |
4918 | |
4919 | intel_set_pipe_timings(intel_crtc); | |
4920 | ||
6e3c9717 | 4921 | if (intel_crtc->config->has_pch_encoder) { |
29407aab | 4922 | intel_cpu_transcoder_set_m_n(intel_crtc, |
6e3c9717 | 4923 | &intel_crtc->config->fdi_m_n, NULL); |
29407aab DV |
4924 | } |
4925 | ||
4926 | ironlake_set_pipeconf(crtc); | |
4927 | ||
f67a559d | 4928 | intel_crtc->active = true; |
8664281b | 4929 | |
a72e4c9f | 4930 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
8664281b | 4931 | |
f6736a1a | 4932 | for_each_encoder_on_crtc(dev, crtc, encoder) |
952735ee DV |
4933 | if (encoder->pre_enable) |
4934 | encoder->pre_enable(encoder); | |
f67a559d | 4935 | |
6e3c9717 | 4936 | if (intel_crtc->config->has_pch_encoder) { |
fff367c7 DV |
4937 | /* Note: FDI PLL enabling _must_ be done before we enable the |
4938 | * cpu pipes, hence this is separate from all the other fdi/pch | |
4939 | * enabling. */ | |
88cefb6c | 4940 | ironlake_fdi_pll_enable(intel_crtc); |
46b6f814 DV |
4941 | } else { |
4942 | assert_fdi_tx_disabled(dev_priv, pipe); | |
4943 | assert_fdi_rx_disabled(dev_priv, pipe); | |
4944 | } | |
f67a559d | 4945 | |
b074cec8 | 4946 | ironlake_pfit_enable(intel_crtc); |
f67a559d | 4947 | |
9c54c0dd JB |
4948 | /* |
4949 | * On ILK+ LUT must be loaded before the pipe is running but with | |
4950 | * clocks enabled | |
4951 | */ | |
4952 | intel_crtc_load_lut(crtc); | |
4953 | ||
f37fcc2a | 4954 | intel_update_watermarks(crtc); |
e1fdc473 | 4955 | intel_enable_pipe(intel_crtc); |
f67a559d | 4956 | |
6e3c9717 | 4957 | if (intel_crtc->config->has_pch_encoder) |
f67a559d | 4958 | ironlake_pch_enable(crtc); |
c98e9dcf | 4959 | |
f9b61ff6 DV |
4960 | assert_vblank_disabled(crtc); |
4961 | drm_crtc_vblank_on(crtc); | |
4962 | ||
fa5c73b1 DV |
4963 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4964 | encoder->enable(encoder); | |
61b77ddd DV |
4965 | |
4966 | if (HAS_PCH_CPT(dev)) | |
a1520318 | 4967 | cpt_verify_modeset(dev, intel_crtc->pipe); |
37ca8d4c VS |
4968 | |
4969 | /* Must wait for vblank to avoid spurious PCH FIFO underruns */ | |
4970 | if (intel_crtc->config->has_pch_encoder) | |
4971 | intel_wait_for_vblank(dev, pipe); | |
4972 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true); | |
d029bcad PZ |
4973 | |
4974 | intel_fbc_enable(intel_crtc); | |
6be4a607 JB |
4975 | } |
4976 | ||
42db64ef PZ |
4977 | /* IPS only exists on ULT machines and is tied to pipe A. */ |
4978 | static bool hsw_crtc_supports_ips(struct intel_crtc *crtc) | |
4979 | { | |
f5adf94e | 4980 | return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A; |
42db64ef PZ |
4981 | } |
4982 | ||
4f771f10 PZ |
4983 | static void haswell_crtc_enable(struct drm_crtc *crtc) |
4984 | { | |
4985 | struct drm_device *dev = crtc->dev; | |
4986 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4987 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4988 | struct intel_encoder *encoder; | |
99d736a2 ML |
4989 | int pipe = intel_crtc->pipe, hsw_workaround_pipe; |
4990 | struct intel_crtc_state *pipe_config = | |
4991 | to_intel_crtc_state(crtc->state); | |
4f771f10 | 4992 | |
53d9f4e9 | 4993 | if (WARN_ON(intel_crtc->active)) |
4f771f10 PZ |
4994 | return; |
4995 | ||
81b088ca VS |
4996 | if (intel_crtc->config->has_pch_encoder) |
4997 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, | |
4998 | false); | |
4999 | ||
df8ad70c DV |
5000 | if (intel_crtc_to_shared_dpll(intel_crtc)) |
5001 | intel_enable_shared_dpll(intel_crtc); | |
5002 | ||
6e3c9717 | 5003 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 5004 | intel_dp_set_m_n(intel_crtc, M1_N1); |
229fca97 DV |
5005 | |
5006 | intel_set_pipe_timings(intel_crtc); | |
5007 | ||
6e3c9717 ACO |
5008 | if (intel_crtc->config->cpu_transcoder != TRANSCODER_EDP) { |
5009 | I915_WRITE(PIPE_MULT(intel_crtc->config->cpu_transcoder), | |
5010 | intel_crtc->config->pixel_multiplier - 1); | |
ebb69c95 CT |
5011 | } |
5012 | ||
6e3c9717 | 5013 | if (intel_crtc->config->has_pch_encoder) { |
229fca97 | 5014 | intel_cpu_transcoder_set_m_n(intel_crtc, |
6e3c9717 | 5015 | &intel_crtc->config->fdi_m_n, NULL); |
229fca97 DV |
5016 | } |
5017 | ||
5018 | haswell_set_pipeconf(crtc); | |
5019 | ||
5020 | intel_set_pipe_csc(crtc); | |
5021 | ||
4f771f10 | 5022 | intel_crtc->active = true; |
8664281b | 5023 | |
6b698516 DV |
5024 | if (intel_crtc->config->has_pch_encoder) |
5025 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); | |
5026 | else | |
5027 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); | |
5028 | ||
7d4aefd0 | 5029 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
4f771f10 PZ |
5030 | if (encoder->pre_enable) |
5031 | encoder->pre_enable(encoder); | |
7d4aefd0 | 5032 | } |
4f771f10 | 5033 | |
d2d65408 | 5034 | if (intel_crtc->config->has_pch_encoder) |
4fe9467d | 5035 | dev_priv->display.fdi_link_train(crtc); |
4fe9467d | 5036 | |
a65347ba | 5037 | if (!intel_crtc->config->has_dsi_encoder) |
7d4aefd0 | 5038 | intel_ddi_enable_pipe_clock(intel_crtc); |
4f771f10 | 5039 | |
1c132b44 | 5040 | if (INTEL_INFO(dev)->gen >= 9) |
e435d6e5 | 5041 | skylake_pfit_enable(intel_crtc); |
ff6d9f55 | 5042 | else |
1c132b44 | 5043 | ironlake_pfit_enable(intel_crtc); |
4f771f10 PZ |
5044 | |
5045 | /* | |
5046 | * On ILK+ LUT must be loaded before the pipe is running but with | |
5047 | * clocks enabled | |
5048 | */ | |
5049 | intel_crtc_load_lut(crtc); | |
5050 | ||
1f544388 | 5051 | intel_ddi_set_pipe_settings(crtc); |
a65347ba | 5052 | if (!intel_crtc->config->has_dsi_encoder) |
7d4aefd0 | 5053 | intel_ddi_enable_transcoder_func(crtc); |
4f771f10 | 5054 | |
f37fcc2a | 5055 | intel_update_watermarks(crtc); |
e1fdc473 | 5056 | intel_enable_pipe(intel_crtc); |
42db64ef | 5057 | |
6e3c9717 | 5058 | if (intel_crtc->config->has_pch_encoder) |
1507e5bd | 5059 | lpt_pch_enable(crtc); |
4f771f10 | 5060 | |
a65347ba | 5061 | if (intel_crtc->config->dp_encoder_is_mst) |
0e32b39c DA |
5062 | intel_ddi_set_vc_payload_alloc(crtc, true); |
5063 | ||
f9b61ff6 DV |
5064 | assert_vblank_disabled(crtc); |
5065 | drm_crtc_vblank_on(crtc); | |
5066 | ||
8807e55b | 5067 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
4f771f10 | 5068 | encoder->enable(encoder); |
8807e55b JN |
5069 | intel_opregion_notify_encoder(encoder, true); |
5070 | } | |
4f771f10 | 5071 | |
6b698516 DV |
5072 | if (intel_crtc->config->has_pch_encoder) { |
5073 | intel_wait_for_vblank(dev, pipe); | |
5074 | intel_wait_for_vblank(dev, pipe); | |
5075 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); | |
d2d65408 VS |
5076 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
5077 | true); | |
6b698516 | 5078 | } |
d2d65408 | 5079 | |
e4916946 PZ |
5080 | /* If we change the relative order between pipe/planes enabling, we need |
5081 | * to change the workaround. */ | |
99d736a2 ML |
5082 | hsw_workaround_pipe = pipe_config->hsw_workaround_pipe; |
5083 | if (IS_HASWELL(dev) && hsw_workaround_pipe != INVALID_PIPE) { | |
5084 | intel_wait_for_vblank(dev, hsw_workaround_pipe); | |
5085 | intel_wait_for_vblank(dev, hsw_workaround_pipe); | |
5086 | } | |
d029bcad PZ |
5087 | |
5088 | intel_fbc_enable(intel_crtc); | |
4f771f10 PZ |
5089 | } |
5090 | ||
bfd16b2a | 5091 | static void ironlake_pfit_disable(struct intel_crtc *crtc, bool force) |
3f8dce3a DV |
5092 | { |
5093 | struct drm_device *dev = crtc->base.dev; | |
5094 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5095 | int pipe = crtc->pipe; | |
5096 | ||
5097 | /* To avoid upsetting the power well on haswell only disable the pfit if | |
5098 | * it's in use. The hw state code will make sure we get this right. */ | |
bfd16b2a | 5099 | if (force || crtc->config->pch_pfit.enabled) { |
3f8dce3a DV |
5100 | I915_WRITE(PF_CTL(pipe), 0); |
5101 | I915_WRITE(PF_WIN_POS(pipe), 0); | |
5102 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
5103 | } | |
5104 | } | |
5105 | ||
6be4a607 JB |
5106 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
5107 | { | |
5108 | struct drm_device *dev = crtc->dev; | |
5109 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5110 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 5111 | struct intel_encoder *encoder; |
6be4a607 | 5112 | int pipe = intel_crtc->pipe; |
b52eb4dc | 5113 | |
37ca8d4c VS |
5114 | if (intel_crtc->config->has_pch_encoder) |
5115 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false); | |
5116 | ||
ea9d758d DV |
5117 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5118 | encoder->disable(encoder); | |
5119 | ||
f9b61ff6 DV |
5120 | drm_crtc_vblank_off(crtc); |
5121 | assert_vblank_disabled(crtc); | |
5122 | ||
3860b2ec VS |
5123 | /* |
5124 | * Sometimes spurious CPU pipe underruns happen when the | |
5125 | * pipe is already disabled, but FDI RX/TX is still enabled. | |
5126 | * Happens at least with VGA+HDMI cloning. Suppress them. | |
5127 | */ | |
5128 | if (intel_crtc->config->has_pch_encoder) | |
5129 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); | |
5130 | ||
575f7ab7 | 5131 | intel_disable_pipe(intel_crtc); |
32f9d658 | 5132 | |
bfd16b2a | 5133 | ironlake_pfit_disable(intel_crtc, false); |
2c07245f | 5134 | |
3860b2ec | 5135 | if (intel_crtc->config->has_pch_encoder) { |
5a74f70a | 5136 | ironlake_fdi_disable(crtc); |
3860b2ec VS |
5137 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
5138 | } | |
5a74f70a | 5139 | |
bf49ec8c DV |
5140 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5141 | if (encoder->post_disable) | |
5142 | encoder->post_disable(encoder); | |
2c07245f | 5143 | |
6e3c9717 | 5144 | if (intel_crtc->config->has_pch_encoder) { |
d925c59a | 5145 | ironlake_disable_pch_transcoder(dev_priv, pipe); |
6be4a607 | 5146 | |
d925c59a | 5147 | if (HAS_PCH_CPT(dev)) { |
f0f59a00 VS |
5148 | i915_reg_t reg; |
5149 | u32 temp; | |
5150 | ||
d925c59a DV |
5151 | /* disable TRANS_DP_CTL */ |
5152 | reg = TRANS_DP_CTL(pipe); | |
5153 | temp = I915_READ(reg); | |
5154 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | | |
5155 | TRANS_DP_PORT_SEL_MASK); | |
5156 | temp |= TRANS_DP_PORT_SEL_NONE; | |
5157 | I915_WRITE(reg, temp); | |
5158 | ||
5159 | /* disable DPLL_SEL */ | |
5160 | temp = I915_READ(PCH_DPLL_SEL); | |
11887397 | 5161 | temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe)); |
d925c59a | 5162 | I915_WRITE(PCH_DPLL_SEL, temp); |
9db4a9c7 | 5163 | } |
e3421a18 | 5164 | |
d925c59a DV |
5165 | ironlake_fdi_pll_disable(intel_crtc); |
5166 | } | |
81b088ca VS |
5167 | |
5168 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true); | |
d029bcad PZ |
5169 | |
5170 | intel_fbc_disable_crtc(intel_crtc); | |
6be4a607 | 5171 | } |
1b3c7a47 | 5172 | |
4f771f10 | 5173 | static void haswell_crtc_disable(struct drm_crtc *crtc) |
ee7b9f93 | 5174 | { |
4f771f10 PZ |
5175 | struct drm_device *dev = crtc->dev; |
5176 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee7b9f93 | 5177 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4f771f10 | 5178 | struct intel_encoder *encoder; |
6e3c9717 | 5179 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
ee7b9f93 | 5180 | |
d2d65408 VS |
5181 | if (intel_crtc->config->has_pch_encoder) |
5182 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, | |
5183 | false); | |
5184 | ||
8807e55b JN |
5185 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5186 | intel_opregion_notify_encoder(encoder, false); | |
4f771f10 | 5187 | encoder->disable(encoder); |
8807e55b | 5188 | } |
4f771f10 | 5189 | |
f9b61ff6 DV |
5190 | drm_crtc_vblank_off(crtc); |
5191 | assert_vblank_disabled(crtc); | |
5192 | ||
575f7ab7 | 5193 | intel_disable_pipe(intel_crtc); |
4f771f10 | 5194 | |
6e3c9717 | 5195 | if (intel_crtc->config->dp_encoder_is_mst) |
a4bf214f VS |
5196 | intel_ddi_set_vc_payload_alloc(crtc, false); |
5197 | ||
a65347ba | 5198 | if (!intel_crtc->config->has_dsi_encoder) |
7d4aefd0 | 5199 | intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder); |
4f771f10 | 5200 | |
1c132b44 | 5201 | if (INTEL_INFO(dev)->gen >= 9) |
e435d6e5 | 5202 | skylake_scaler_disable(intel_crtc); |
ff6d9f55 | 5203 | else |
bfd16b2a | 5204 | ironlake_pfit_disable(intel_crtc, false); |
4f771f10 | 5205 | |
a65347ba | 5206 | if (!intel_crtc->config->has_dsi_encoder) |
7d4aefd0 | 5207 | intel_ddi_disable_pipe_clock(intel_crtc); |
4f771f10 | 5208 | |
97b040aa ID |
5209 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5210 | if (encoder->post_disable) | |
5211 | encoder->post_disable(encoder); | |
81b088ca | 5212 | |
92966a37 VS |
5213 | if (intel_crtc->config->has_pch_encoder) { |
5214 | lpt_disable_pch_transcoder(dev_priv); | |
503a74e9 | 5215 | lpt_disable_iclkip(dev_priv); |
92966a37 VS |
5216 | intel_ddi_fdi_disable(crtc); |
5217 | ||
81b088ca VS |
5218 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
5219 | true); | |
92966a37 | 5220 | } |
d029bcad PZ |
5221 | |
5222 | intel_fbc_disable_crtc(intel_crtc); | |
4f771f10 PZ |
5223 | } |
5224 | ||
2dd24552 JB |
5225 | static void i9xx_pfit_enable(struct intel_crtc *crtc) |
5226 | { | |
5227 | struct drm_device *dev = crtc->base.dev; | |
5228 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 5229 | struct intel_crtc_state *pipe_config = crtc->config; |
2dd24552 | 5230 | |
681a8504 | 5231 | if (!pipe_config->gmch_pfit.control) |
2dd24552 JB |
5232 | return; |
5233 | ||
2dd24552 | 5234 | /* |
c0b03411 DV |
5235 | * The panel fitter should only be adjusted whilst the pipe is disabled, |
5236 | * according to register description and PRM. | |
2dd24552 | 5237 | */ |
c0b03411 DV |
5238 | WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE); |
5239 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
2dd24552 | 5240 | |
b074cec8 JB |
5241 | I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios); |
5242 | I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control); | |
5a80c45c DV |
5243 | |
5244 | /* Border color in case we don't scale up to the full screen. Black by | |
5245 | * default, change to something else for debugging. */ | |
5246 | I915_WRITE(BCLRPAT(crtc->pipe), 0); | |
2dd24552 JB |
5247 | } |
5248 | ||
d05410f9 DA |
5249 | static enum intel_display_power_domain port_to_power_domain(enum port port) |
5250 | { | |
5251 | switch (port) { | |
5252 | case PORT_A: | |
6331a704 | 5253 | return POWER_DOMAIN_PORT_DDI_A_LANES; |
d05410f9 | 5254 | case PORT_B: |
6331a704 | 5255 | return POWER_DOMAIN_PORT_DDI_B_LANES; |
d05410f9 | 5256 | case PORT_C: |
6331a704 | 5257 | return POWER_DOMAIN_PORT_DDI_C_LANES; |
d05410f9 | 5258 | case PORT_D: |
6331a704 | 5259 | return POWER_DOMAIN_PORT_DDI_D_LANES; |
d8e19f99 | 5260 | case PORT_E: |
6331a704 | 5261 | return POWER_DOMAIN_PORT_DDI_E_LANES; |
d05410f9 | 5262 | default: |
b9fec167 | 5263 | MISSING_CASE(port); |
d05410f9 DA |
5264 | return POWER_DOMAIN_PORT_OTHER; |
5265 | } | |
5266 | } | |
5267 | ||
25f78f58 VS |
5268 | static enum intel_display_power_domain port_to_aux_power_domain(enum port port) |
5269 | { | |
5270 | switch (port) { | |
5271 | case PORT_A: | |
5272 | return POWER_DOMAIN_AUX_A; | |
5273 | case PORT_B: | |
5274 | return POWER_DOMAIN_AUX_B; | |
5275 | case PORT_C: | |
5276 | return POWER_DOMAIN_AUX_C; | |
5277 | case PORT_D: | |
5278 | return POWER_DOMAIN_AUX_D; | |
5279 | case PORT_E: | |
5280 | /* FIXME: Check VBT for actual wiring of PORT E */ | |
5281 | return POWER_DOMAIN_AUX_D; | |
5282 | default: | |
b9fec167 | 5283 | MISSING_CASE(port); |
25f78f58 VS |
5284 | return POWER_DOMAIN_AUX_A; |
5285 | } | |
5286 | } | |
5287 | ||
319be8ae ID |
5288 | enum intel_display_power_domain |
5289 | intel_display_port_power_domain(struct intel_encoder *intel_encoder) | |
5290 | { | |
5291 | struct drm_device *dev = intel_encoder->base.dev; | |
5292 | struct intel_digital_port *intel_dig_port; | |
5293 | ||
5294 | switch (intel_encoder->type) { | |
5295 | case INTEL_OUTPUT_UNKNOWN: | |
5296 | /* Only DDI platforms should ever use this output type */ | |
5297 | WARN_ON_ONCE(!HAS_DDI(dev)); | |
5298 | case INTEL_OUTPUT_DISPLAYPORT: | |
5299 | case INTEL_OUTPUT_HDMI: | |
5300 | case INTEL_OUTPUT_EDP: | |
5301 | intel_dig_port = enc_to_dig_port(&intel_encoder->base); | |
d05410f9 | 5302 | return port_to_power_domain(intel_dig_port->port); |
0e32b39c DA |
5303 | case INTEL_OUTPUT_DP_MST: |
5304 | intel_dig_port = enc_to_mst(&intel_encoder->base)->primary; | |
5305 | return port_to_power_domain(intel_dig_port->port); | |
319be8ae ID |
5306 | case INTEL_OUTPUT_ANALOG: |
5307 | return POWER_DOMAIN_PORT_CRT; | |
5308 | case INTEL_OUTPUT_DSI: | |
5309 | return POWER_DOMAIN_PORT_DSI; | |
5310 | default: | |
5311 | return POWER_DOMAIN_PORT_OTHER; | |
5312 | } | |
5313 | } | |
5314 | ||
25f78f58 VS |
5315 | enum intel_display_power_domain |
5316 | intel_display_port_aux_power_domain(struct intel_encoder *intel_encoder) | |
5317 | { | |
5318 | struct drm_device *dev = intel_encoder->base.dev; | |
5319 | struct intel_digital_port *intel_dig_port; | |
5320 | ||
5321 | switch (intel_encoder->type) { | |
5322 | case INTEL_OUTPUT_UNKNOWN: | |
651174a4 ID |
5323 | case INTEL_OUTPUT_HDMI: |
5324 | /* | |
5325 | * Only DDI platforms should ever use these output types. | |
5326 | * We can get here after the HDMI detect code has already set | |
5327 | * the type of the shared encoder. Since we can't be sure | |
5328 | * what's the status of the given connectors, play safe and | |
5329 | * run the DP detection too. | |
5330 | */ | |
25f78f58 VS |
5331 | WARN_ON_ONCE(!HAS_DDI(dev)); |
5332 | case INTEL_OUTPUT_DISPLAYPORT: | |
5333 | case INTEL_OUTPUT_EDP: | |
5334 | intel_dig_port = enc_to_dig_port(&intel_encoder->base); | |
5335 | return port_to_aux_power_domain(intel_dig_port->port); | |
5336 | case INTEL_OUTPUT_DP_MST: | |
5337 | intel_dig_port = enc_to_mst(&intel_encoder->base)->primary; | |
5338 | return port_to_aux_power_domain(intel_dig_port->port); | |
5339 | default: | |
b9fec167 | 5340 | MISSING_CASE(intel_encoder->type); |
25f78f58 VS |
5341 | return POWER_DOMAIN_AUX_A; |
5342 | } | |
5343 | } | |
5344 | ||
319be8ae | 5345 | static unsigned long get_crtc_power_domains(struct drm_crtc *crtc) |
77d22dca | 5346 | { |
319be8ae ID |
5347 | struct drm_device *dev = crtc->dev; |
5348 | struct intel_encoder *intel_encoder; | |
5349 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5350 | enum pipe pipe = intel_crtc->pipe; | |
77d22dca | 5351 | unsigned long mask; |
1a70a728 | 5352 | enum transcoder transcoder = intel_crtc->config->cpu_transcoder; |
77d22dca | 5353 | |
292b990e ML |
5354 | if (!crtc->state->active) |
5355 | return 0; | |
5356 | ||
77d22dca ID |
5357 | mask = BIT(POWER_DOMAIN_PIPE(pipe)); |
5358 | mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder)); | |
6e3c9717 ACO |
5359 | if (intel_crtc->config->pch_pfit.enabled || |
5360 | intel_crtc->config->pch_pfit.force_thru) | |
77d22dca ID |
5361 | mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe)); |
5362 | ||
319be8ae ID |
5363 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) |
5364 | mask |= BIT(intel_display_port_power_domain(intel_encoder)); | |
5365 | ||
77d22dca ID |
5366 | return mask; |
5367 | } | |
5368 | ||
292b990e | 5369 | static unsigned long modeset_get_crtc_power_domains(struct drm_crtc *crtc) |
77d22dca | 5370 | { |
292b990e ML |
5371 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
5372 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5373 | enum intel_display_power_domain domain; | |
5374 | unsigned long domains, new_domains, old_domains; | |
77d22dca | 5375 | |
292b990e ML |
5376 | old_domains = intel_crtc->enabled_power_domains; |
5377 | intel_crtc->enabled_power_domains = new_domains = get_crtc_power_domains(crtc); | |
77d22dca | 5378 | |
292b990e ML |
5379 | domains = new_domains & ~old_domains; |
5380 | ||
5381 | for_each_power_domain(domain, domains) | |
5382 | intel_display_power_get(dev_priv, domain); | |
5383 | ||
5384 | return old_domains & ~new_domains; | |
5385 | } | |
5386 | ||
5387 | static void modeset_put_power_domains(struct drm_i915_private *dev_priv, | |
5388 | unsigned long domains) | |
5389 | { | |
5390 | enum intel_display_power_domain domain; | |
5391 | ||
5392 | for_each_power_domain(domain, domains) | |
5393 | intel_display_power_put(dev_priv, domain); | |
5394 | } | |
77d22dca | 5395 | |
292b990e ML |
5396 | static void modeset_update_crtc_power_domains(struct drm_atomic_state *state) |
5397 | { | |
1a617b77 | 5398 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
292b990e ML |
5399 | struct drm_device *dev = state->dev; |
5400 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5401 | unsigned long put_domains[I915_MAX_PIPES] = {}; | |
5402 | struct drm_crtc_state *crtc_state; | |
5403 | struct drm_crtc *crtc; | |
5404 | int i; | |
77d22dca | 5405 | |
292b990e ML |
5406 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
5407 | if (needs_modeset(crtc->state)) | |
5408 | put_domains[to_intel_crtc(crtc)->pipe] = | |
5409 | modeset_get_crtc_power_domains(crtc); | |
77d22dca ID |
5410 | } |
5411 | ||
1a617b77 ML |
5412 | if (dev_priv->display.modeset_commit_cdclk && |
5413 | intel_state->dev_cdclk != dev_priv->cdclk_freq) | |
5414 | dev_priv->display.modeset_commit_cdclk(state); | |
50f6e502 | 5415 | |
292b990e ML |
5416 | for (i = 0; i < I915_MAX_PIPES; i++) |
5417 | if (put_domains[i]) | |
5418 | modeset_put_power_domains(dev_priv, put_domains[i]); | |
77d22dca ID |
5419 | } |
5420 | ||
adafdc6f MK |
5421 | static int intel_compute_max_dotclk(struct drm_i915_private *dev_priv) |
5422 | { | |
5423 | int max_cdclk_freq = dev_priv->max_cdclk_freq; | |
5424 | ||
5425 | if (INTEL_INFO(dev_priv)->gen >= 9 || | |
5426 | IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) | |
5427 | return max_cdclk_freq; | |
5428 | else if (IS_CHERRYVIEW(dev_priv)) | |
5429 | return max_cdclk_freq*95/100; | |
5430 | else if (INTEL_INFO(dev_priv)->gen < 4) | |
5431 | return 2*max_cdclk_freq*90/100; | |
5432 | else | |
5433 | return max_cdclk_freq*90/100; | |
5434 | } | |
5435 | ||
560a7ae4 DL |
5436 | static void intel_update_max_cdclk(struct drm_device *dev) |
5437 | { | |
5438 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5439 | ||
ef11bdb3 | 5440 | if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) { |
560a7ae4 DL |
5441 | u32 limit = I915_READ(SKL_DFSM) & SKL_DFSM_CDCLK_LIMIT_MASK; |
5442 | ||
5443 | if (limit == SKL_DFSM_CDCLK_LIMIT_675) | |
5444 | dev_priv->max_cdclk_freq = 675000; | |
5445 | else if (limit == SKL_DFSM_CDCLK_LIMIT_540) | |
5446 | dev_priv->max_cdclk_freq = 540000; | |
5447 | else if (limit == SKL_DFSM_CDCLK_LIMIT_450) | |
5448 | dev_priv->max_cdclk_freq = 450000; | |
5449 | else | |
5450 | dev_priv->max_cdclk_freq = 337500; | |
5451 | } else if (IS_BROADWELL(dev)) { | |
5452 | /* | |
5453 | * FIXME with extra cooling we can allow | |
5454 | * 540 MHz for ULX and 675 Mhz for ULT. | |
5455 | * How can we know if extra cooling is | |
5456 | * available? PCI ID, VTB, something else? | |
5457 | */ | |
5458 | if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) | |
5459 | dev_priv->max_cdclk_freq = 450000; | |
5460 | else if (IS_BDW_ULX(dev)) | |
5461 | dev_priv->max_cdclk_freq = 450000; | |
5462 | else if (IS_BDW_ULT(dev)) | |
5463 | dev_priv->max_cdclk_freq = 540000; | |
5464 | else | |
5465 | dev_priv->max_cdclk_freq = 675000; | |
0904deaf MK |
5466 | } else if (IS_CHERRYVIEW(dev)) { |
5467 | dev_priv->max_cdclk_freq = 320000; | |
560a7ae4 DL |
5468 | } else if (IS_VALLEYVIEW(dev)) { |
5469 | dev_priv->max_cdclk_freq = 400000; | |
5470 | } else { | |
5471 | /* otherwise assume cdclk is fixed */ | |
5472 | dev_priv->max_cdclk_freq = dev_priv->cdclk_freq; | |
5473 | } | |
5474 | ||
adafdc6f MK |
5475 | dev_priv->max_dotclk_freq = intel_compute_max_dotclk(dev_priv); |
5476 | ||
560a7ae4 DL |
5477 | DRM_DEBUG_DRIVER("Max CD clock rate: %d kHz\n", |
5478 | dev_priv->max_cdclk_freq); | |
adafdc6f MK |
5479 | |
5480 | DRM_DEBUG_DRIVER("Max dotclock rate: %d kHz\n", | |
5481 | dev_priv->max_dotclk_freq); | |
560a7ae4 DL |
5482 | } |
5483 | ||
5484 | static void intel_update_cdclk(struct drm_device *dev) | |
5485 | { | |
5486 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5487 | ||
5488 | dev_priv->cdclk_freq = dev_priv->display.get_display_clock_speed(dev); | |
5489 | DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz\n", | |
5490 | dev_priv->cdclk_freq); | |
5491 | ||
5492 | /* | |
5493 | * Program the gmbus_freq based on the cdclk frequency. | |
5494 | * BSpec erroneously claims we should aim for 4MHz, but | |
5495 | * in fact 1MHz is the correct frequency. | |
5496 | */ | |
666a4537 | 5497 | if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
560a7ae4 DL |
5498 | /* |
5499 | * Program the gmbus_freq based on the cdclk frequency. | |
5500 | * BSpec erroneously claims we should aim for 4MHz, but | |
5501 | * in fact 1MHz is the correct frequency. | |
5502 | */ | |
5503 | I915_WRITE(GMBUSFREQ_VLV, DIV_ROUND_UP(dev_priv->cdclk_freq, 1000)); | |
5504 | } | |
5505 | ||
5506 | if (dev_priv->max_cdclk_freq == 0) | |
5507 | intel_update_max_cdclk(dev); | |
5508 | } | |
5509 | ||
70d0c574 | 5510 | static void broxton_set_cdclk(struct drm_device *dev, int frequency) |
f8437dd1 VK |
5511 | { |
5512 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5513 | uint32_t divider; | |
5514 | uint32_t ratio; | |
5515 | uint32_t current_freq; | |
5516 | int ret; | |
5517 | ||
5518 | /* frequency = 19.2MHz * ratio / 2 / div{1,1.5,2,4} */ | |
5519 | switch (frequency) { | |
5520 | case 144000: | |
5521 | divider = BXT_CDCLK_CD2X_DIV_SEL_4; | |
5522 | ratio = BXT_DE_PLL_RATIO(60); | |
5523 | break; | |
5524 | case 288000: | |
5525 | divider = BXT_CDCLK_CD2X_DIV_SEL_2; | |
5526 | ratio = BXT_DE_PLL_RATIO(60); | |
5527 | break; | |
5528 | case 384000: | |
5529 | divider = BXT_CDCLK_CD2X_DIV_SEL_1_5; | |
5530 | ratio = BXT_DE_PLL_RATIO(60); | |
5531 | break; | |
5532 | case 576000: | |
5533 | divider = BXT_CDCLK_CD2X_DIV_SEL_1; | |
5534 | ratio = BXT_DE_PLL_RATIO(60); | |
5535 | break; | |
5536 | case 624000: | |
5537 | divider = BXT_CDCLK_CD2X_DIV_SEL_1; | |
5538 | ratio = BXT_DE_PLL_RATIO(65); | |
5539 | break; | |
5540 | case 19200: | |
5541 | /* | |
5542 | * Bypass frequency with DE PLL disabled. Init ratio, divider | |
5543 | * to suppress GCC warning. | |
5544 | */ | |
5545 | ratio = 0; | |
5546 | divider = 0; | |
5547 | break; | |
5548 | default: | |
5549 | DRM_ERROR("unsupported CDCLK freq %d", frequency); | |
5550 | ||
5551 | return; | |
5552 | } | |
5553 | ||
5554 | mutex_lock(&dev_priv->rps.hw_lock); | |
5555 | /* Inform power controller of upcoming frequency change */ | |
5556 | ret = sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, | |
5557 | 0x80000000); | |
5558 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5559 | ||
5560 | if (ret) { | |
5561 | DRM_ERROR("PCode CDCLK freq change notify failed (err %d, freq %d)\n", | |
5562 | ret, frequency); | |
5563 | return; | |
5564 | } | |
5565 | ||
5566 | current_freq = I915_READ(CDCLK_CTL) & CDCLK_FREQ_DECIMAL_MASK; | |
5567 | /* convert from .1 fixpoint MHz with -1MHz offset to kHz */ | |
5568 | current_freq = current_freq * 500 + 1000; | |
5569 | ||
5570 | /* | |
5571 | * DE PLL has to be disabled when | |
5572 | * - setting to 19.2MHz (bypass, PLL isn't used) | |
5573 | * - before setting to 624MHz (PLL needs toggling) | |
5574 | * - before setting to any frequency from 624MHz (PLL needs toggling) | |
5575 | */ | |
5576 | if (frequency == 19200 || frequency == 624000 || | |
5577 | current_freq == 624000) { | |
5578 | I915_WRITE(BXT_DE_PLL_ENABLE, ~BXT_DE_PLL_PLL_ENABLE); | |
5579 | /* Timeout 200us */ | |
5580 | if (wait_for(!(I915_READ(BXT_DE_PLL_ENABLE) & BXT_DE_PLL_LOCK), | |
5581 | 1)) | |
5582 | DRM_ERROR("timout waiting for DE PLL unlock\n"); | |
5583 | } | |
5584 | ||
5585 | if (frequency != 19200) { | |
5586 | uint32_t val; | |
5587 | ||
5588 | val = I915_READ(BXT_DE_PLL_CTL); | |
5589 | val &= ~BXT_DE_PLL_RATIO_MASK; | |
5590 | val |= ratio; | |
5591 | I915_WRITE(BXT_DE_PLL_CTL, val); | |
5592 | ||
5593 | I915_WRITE(BXT_DE_PLL_ENABLE, BXT_DE_PLL_PLL_ENABLE); | |
5594 | /* Timeout 200us */ | |
5595 | if (wait_for(I915_READ(BXT_DE_PLL_ENABLE) & BXT_DE_PLL_LOCK, 1)) | |
5596 | DRM_ERROR("timeout waiting for DE PLL lock\n"); | |
5597 | ||
5598 | val = I915_READ(CDCLK_CTL); | |
5599 | val &= ~BXT_CDCLK_CD2X_DIV_SEL_MASK; | |
5600 | val |= divider; | |
5601 | /* | |
5602 | * Disable SSA Precharge when CD clock frequency < 500 MHz, | |
5603 | * enable otherwise. | |
5604 | */ | |
5605 | val &= ~BXT_CDCLK_SSA_PRECHARGE_ENABLE; | |
5606 | if (frequency >= 500000) | |
5607 | val |= BXT_CDCLK_SSA_PRECHARGE_ENABLE; | |
5608 | ||
5609 | val &= ~CDCLK_FREQ_DECIMAL_MASK; | |
5610 | /* convert from kHz to .1 fixpoint MHz with -1MHz offset */ | |
5611 | val |= (frequency - 1000) / 500; | |
5612 | I915_WRITE(CDCLK_CTL, val); | |
5613 | } | |
5614 | ||
5615 | mutex_lock(&dev_priv->rps.hw_lock); | |
5616 | ret = sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, | |
5617 | DIV_ROUND_UP(frequency, 25000)); | |
5618 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5619 | ||
5620 | if (ret) { | |
5621 | DRM_ERROR("PCode CDCLK freq set failed, (err %d, freq %d)\n", | |
5622 | ret, frequency); | |
5623 | return; | |
5624 | } | |
5625 | ||
a47871bd | 5626 | intel_update_cdclk(dev); |
f8437dd1 VK |
5627 | } |
5628 | ||
5629 | void broxton_init_cdclk(struct drm_device *dev) | |
5630 | { | |
5631 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5632 | uint32_t val; | |
5633 | ||
5634 | /* | |
5635 | * NDE_RSTWRN_OPT RST PCH Handshake En must always be 0b on BXT | |
5636 | * or else the reset will hang because there is no PCH to respond. | |
5637 | * Move the handshake programming to initialization sequence. | |
5638 | * Previously was left up to BIOS. | |
5639 | */ | |
5640 | val = I915_READ(HSW_NDE_RSTWRN_OPT); | |
5641 | val &= ~RESET_PCH_HANDSHAKE_ENABLE; | |
5642 | I915_WRITE(HSW_NDE_RSTWRN_OPT, val); | |
5643 | ||
5644 | /* Enable PG1 for cdclk */ | |
5645 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); | |
5646 | ||
5647 | /* check if cd clock is enabled */ | |
5648 | if (I915_READ(BXT_DE_PLL_ENABLE) & BXT_DE_PLL_PLL_ENABLE) { | |
5649 | DRM_DEBUG_KMS("Display already initialized\n"); | |
5650 | return; | |
5651 | } | |
5652 | ||
5653 | /* | |
5654 | * FIXME: | |
5655 | * - The initial CDCLK needs to be read from VBT. | |
5656 | * Need to make this change after VBT has changes for BXT. | |
5657 | * - check if setting the max (or any) cdclk freq is really necessary | |
5658 | * here, it belongs to modeset time | |
5659 | */ | |
5660 | broxton_set_cdclk(dev, 624000); | |
5661 | ||
5662 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) | DBUF_POWER_REQUEST); | |
22e02c0b VS |
5663 | POSTING_READ(DBUF_CTL); |
5664 | ||
f8437dd1 VK |
5665 | udelay(10); |
5666 | ||
5667 | if (!(I915_READ(DBUF_CTL) & DBUF_POWER_STATE)) | |
5668 | DRM_ERROR("DBuf power enable timeout!\n"); | |
5669 | } | |
5670 | ||
5671 | void broxton_uninit_cdclk(struct drm_device *dev) | |
5672 | { | |
5673 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5674 | ||
5675 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) & ~DBUF_POWER_REQUEST); | |
22e02c0b VS |
5676 | POSTING_READ(DBUF_CTL); |
5677 | ||
f8437dd1 VK |
5678 | udelay(10); |
5679 | ||
5680 | if (I915_READ(DBUF_CTL) & DBUF_POWER_STATE) | |
5681 | DRM_ERROR("DBuf power disable timeout!\n"); | |
5682 | ||
5683 | /* Set minimum (bypass) frequency, in effect turning off the DE PLL */ | |
5684 | broxton_set_cdclk(dev, 19200); | |
5685 | ||
5686 | intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS); | |
5687 | } | |
5688 | ||
5d96d8af DL |
5689 | static const struct skl_cdclk_entry { |
5690 | unsigned int freq; | |
5691 | unsigned int vco; | |
5692 | } skl_cdclk_frequencies[] = { | |
5693 | { .freq = 308570, .vco = 8640 }, | |
5694 | { .freq = 337500, .vco = 8100 }, | |
5695 | { .freq = 432000, .vco = 8640 }, | |
5696 | { .freq = 450000, .vco = 8100 }, | |
5697 | { .freq = 540000, .vco = 8100 }, | |
5698 | { .freq = 617140, .vco = 8640 }, | |
5699 | { .freq = 675000, .vco = 8100 }, | |
5700 | }; | |
5701 | ||
5702 | static unsigned int skl_cdclk_decimal(unsigned int freq) | |
5703 | { | |
5704 | return (freq - 1000) / 500; | |
5705 | } | |
5706 | ||
5707 | static unsigned int skl_cdclk_get_vco(unsigned int freq) | |
5708 | { | |
5709 | unsigned int i; | |
5710 | ||
5711 | for (i = 0; i < ARRAY_SIZE(skl_cdclk_frequencies); i++) { | |
5712 | const struct skl_cdclk_entry *e = &skl_cdclk_frequencies[i]; | |
5713 | ||
5714 | if (e->freq == freq) | |
5715 | return e->vco; | |
5716 | } | |
5717 | ||
5718 | return 8100; | |
5719 | } | |
5720 | ||
5721 | static void | |
5722 | skl_dpll0_enable(struct drm_i915_private *dev_priv, unsigned int required_vco) | |
5723 | { | |
5724 | unsigned int min_freq; | |
5725 | u32 val; | |
5726 | ||
5727 | /* select the minimum CDCLK before enabling DPLL 0 */ | |
5728 | val = I915_READ(CDCLK_CTL); | |
5729 | val &= ~CDCLK_FREQ_SEL_MASK | ~CDCLK_FREQ_DECIMAL_MASK; | |
5730 | val |= CDCLK_FREQ_337_308; | |
5731 | ||
5732 | if (required_vco == 8640) | |
5733 | min_freq = 308570; | |
5734 | else | |
5735 | min_freq = 337500; | |
5736 | ||
5737 | val = CDCLK_FREQ_337_308 | skl_cdclk_decimal(min_freq); | |
5738 | ||
5739 | I915_WRITE(CDCLK_CTL, val); | |
5740 | POSTING_READ(CDCLK_CTL); | |
5741 | ||
5742 | /* | |
5743 | * We always enable DPLL0 with the lowest link rate possible, but still | |
5744 | * taking into account the VCO required to operate the eDP panel at the | |
5745 | * desired frequency. The usual DP link rates operate with a VCO of | |
5746 | * 8100 while the eDP 1.4 alternate link rates need a VCO of 8640. | |
5747 | * The modeset code is responsible for the selection of the exact link | |
5748 | * rate later on, with the constraint of choosing a frequency that | |
5749 | * works with required_vco. | |
5750 | */ | |
5751 | val = I915_READ(DPLL_CTRL1); | |
5752 | ||
5753 | val &= ~(DPLL_CTRL1_HDMI_MODE(SKL_DPLL0) | DPLL_CTRL1_SSC(SKL_DPLL0) | | |
5754 | DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0)); | |
5755 | val |= DPLL_CTRL1_OVERRIDE(SKL_DPLL0); | |
5756 | if (required_vco == 8640) | |
5757 | val |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1080, | |
5758 | SKL_DPLL0); | |
5759 | else | |
5760 | val |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_810, | |
5761 | SKL_DPLL0); | |
5762 | ||
5763 | I915_WRITE(DPLL_CTRL1, val); | |
5764 | POSTING_READ(DPLL_CTRL1); | |
5765 | ||
5766 | I915_WRITE(LCPLL1_CTL, I915_READ(LCPLL1_CTL) | LCPLL_PLL_ENABLE); | |
5767 | ||
5768 | if (wait_for(I915_READ(LCPLL1_CTL) & LCPLL_PLL_LOCK, 5)) | |
5769 | DRM_ERROR("DPLL0 not locked\n"); | |
5770 | } | |
5771 | ||
5772 | static bool skl_cdclk_pcu_ready(struct drm_i915_private *dev_priv) | |
5773 | { | |
5774 | int ret; | |
5775 | u32 val; | |
5776 | ||
5777 | /* inform PCU we want to change CDCLK */ | |
5778 | val = SKL_CDCLK_PREPARE_FOR_CHANGE; | |
5779 | mutex_lock(&dev_priv->rps.hw_lock); | |
5780 | ret = sandybridge_pcode_read(dev_priv, SKL_PCODE_CDCLK_CONTROL, &val); | |
5781 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5782 | ||
5783 | return ret == 0 && (val & SKL_CDCLK_READY_FOR_CHANGE); | |
5784 | } | |
5785 | ||
5786 | static bool skl_cdclk_wait_for_pcu_ready(struct drm_i915_private *dev_priv) | |
5787 | { | |
5788 | unsigned int i; | |
5789 | ||
5790 | for (i = 0; i < 15; i++) { | |
5791 | if (skl_cdclk_pcu_ready(dev_priv)) | |
5792 | return true; | |
5793 | udelay(10); | |
5794 | } | |
5795 | ||
5796 | return false; | |
5797 | } | |
5798 | ||
5799 | static void skl_set_cdclk(struct drm_i915_private *dev_priv, unsigned int freq) | |
5800 | { | |
560a7ae4 | 5801 | struct drm_device *dev = dev_priv->dev; |
5d96d8af DL |
5802 | u32 freq_select, pcu_ack; |
5803 | ||
5804 | DRM_DEBUG_DRIVER("Changing CDCLK to %dKHz\n", freq); | |
5805 | ||
5806 | if (!skl_cdclk_wait_for_pcu_ready(dev_priv)) { | |
5807 | DRM_ERROR("failed to inform PCU about cdclk change\n"); | |
5808 | return; | |
5809 | } | |
5810 | ||
5811 | /* set CDCLK_CTL */ | |
5812 | switch(freq) { | |
5813 | case 450000: | |
5814 | case 432000: | |
5815 | freq_select = CDCLK_FREQ_450_432; | |
5816 | pcu_ack = 1; | |
5817 | break; | |
5818 | case 540000: | |
5819 | freq_select = CDCLK_FREQ_540; | |
5820 | pcu_ack = 2; | |
5821 | break; | |
5822 | case 308570: | |
5823 | case 337500: | |
5824 | default: | |
5825 | freq_select = CDCLK_FREQ_337_308; | |
5826 | pcu_ack = 0; | |
5827 | break; | |
5828 | case 617140: | |
5829 | case 675000: | |
5830 | freq_select = CDCLK_FREQ_675_617; | |
5831 | pcu_ack = 3; | |
5832 | break; | |
5833 | } | |
5834 | ||
5835 | I915_WRITE(CDCLK_CTL, freq_select | skl_cdclk_decimal(freq)); | |
5836 | POSTING_READ(CDCLK_CTL); | |
5837 | ||
5838 | /* inform PCU of the change */ | |
5839 | mutex_lock(&dev_priv->rps.hw_lock); | |
5840 | sandybridge_pcode_write(dev_priv, SKL_PCODE_CDCLK_CONTROL, pcu_ack); | |
5841 | mutex_unlock(&dev_priv->rps.hw_lock); | |
560a7ae4 DL |
5842 | |
5843 | intel_update_cdclk(dev); | |
5d96d8af DL |
5844 | } |
5845 | ||
5846 | void skl_uninit_cdclk(struct drm_i915_private *dev_priv) | |
5847 | { | |
5848 | /* disable DBUF power */ | |
5849 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) & ~DBUF_POWER_REQUEST); | |
5850 | POSTING_READ(DBUF_CTL); | |
5851 | ||
5852 | udelay(10); | |
5853 | ||
5854 | if (I915_READ(DBUF_CTL) & DBUF_POWER_STATE) | |
5855 | DRM_ERROR("DBuf power disable timeout\n"); | |
5856 | ||
ab96c1ee ID |
5857 | /* disable DPLL0 */ |
5858 | I915_WRITE(LCPLL1_CTL, I915_READ(LCPLL1_CTL) & ~LCPLL_PLL_ENABLE); | |
5859 | if (wait_for(!(I915_READ(LCPLL1_CTL) & LCPLL_PLL_LOCK), 1)) | |
5860 | DRM_ERROR("Couldn't disable DPLL0\n"); | |
5d96d8af DL |
5861 | } |
5862 | ||
5863 | void skl_init_cdclk(struct drm_i915_private *dev_priv) | |
5864 | { | |
5d96d8af DL |
5865 | unsigned int required_vco; |
5866 | ||
39d9b85a GW |
5867 | /* DPLL0 not enabled (happens on early BIOS versions) */ |
5868 | if (!(I915_READ(LCPLL1_CTL) & LCPLL_PLL_ENABLE)) { | |
5869 | /* enable DPLL0 */ | |
5870 | required_vco = skl_cdclk_get_vco(dev_priv->skl_boot_cdclk); | |
5871 | skl_dpll0_enable(dev_priv, required_vco); | |
5d96d8af DL |
5872 | } |
5873 | ||
5d96d8af DL |
5874 | /* set CDCLK to the frequency the BIOS chose */ |
5875 | skl_set_cdclk(dev_priv, dev_priv->skl_boot_cdclk); | |
5876 | ||
5877 | /* enable DBUF power */ | |
5878 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) | DBUF_POWER_REQUEST); | |
5879 | POSTING_READ(DBUF_CTL); | |
5880 | ||
5881 | udelay(10); | |
5882 | ||
5883 | if (!(I915_READ(DBUF_CTL) & DBUF_POWER_STATE)) | |
5884 | DRM_ERROR("DBuf power enable timeout\n"); | |
5885 | } | |
5886 | ||
c73666f3 SK |
5887 | int skl_sanitize_cdclk(struct drm_i915_private *dev_priv) |
5888 | { | |
5889 | uint32_t lcpll1 = I915_READ(LCPLL1_CTL); | |
5890 | uint32_t cdctl = I915_READ(CDCLK_CTL); | |
5891 | int freq = dev_priv->skl_boot_cdclk; | |
5892 | ||
f1b391a5 SK |
5893 | /* |
5894 | * check if the pre-os intialized the display | |
5895 | * There is SWF18 scratchpad register defined which is set by the | |
5896 | * pre-os which can be used by the OS drivers to check the status | |
5897 | */ | |
5898 | if ((I915_READ(SWF_ILK(0x18)) & 0x00FFFFFF) == 0) | |
5899 | goto sanitize; | |
5900 | ||
c73666f3 SK |
5901 | /* Is PLL enabled and locked ? */ |
5902 | if (!((lcpll1 & LCPLL_PLL_ENABLE) && (lcpll1 & LCPLL_PLL_LOCK))) | |
5903 | goto sanitize; | |
5904 | ||
5905 | /* DPLL okay; verify the cdclock | |
5906 | * | |
5907 | * Noticed in some instances that the freq selection is correct but | |
5908 | * decimal part is programmed wrong from BIOS where pre-os does not | |
5909 | * enable display. Verify the same as well. | |
5910 | */ | |
5911 | if (cdctl == ((cdctl & CDCLK_FREQ_SEL_MASK) | skl_cdclk_decimal(freq))) | |
5912 | /* All well; nothing to sanitize */ | |
5913 | return false; | |
5914 | sanitize: | |
5915 | /* | |
5916 | * As of now initialize with max cdclk till | |
5917 | * we get dynamic cdclk support | |
5918 | * */ | |
5919 | dev_priv->skl_boot_cdclk = dev_priv->max_cdclk_freq; | |
5920 | skl_init_cdclk(dev_priv); | |
5921 | ||
5922 | /* we did have to sanitize */ | |
5923 | return true; | |
5924 | } | |
5925 | ||
30a970c6 JB |
5926 | /* Adjust CDclk dividers to allow high res or save power if possible */ |
5927 | static void valleyview_set_cdclk(struct drm_device *dev, int cdclk) | |
5928 | { | |
5929 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5930 | u32 val, cmd; | |
5931 | ||
164dfd28 VK |
5932 | WARN_ON(dev_priv->display.get_display_clock_speed(dev) |
5933 | != dev_priv->cdclk_freq); | |
d60c4473 | 5934 | |
dfcab17e | 5935 | if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */ |
30a970c6 | 5936 | cmd = 2; |
dfcab17e | 5937 | else if (cdclk == 266667) |
30a970c6 JB |
5938 | cmd = 1; |
5939 | else | |
5940 | cmd = 0; | |
5941 | ||
5942 | mutex_lock(&dev_priv->rps.hw_lock); | |
5943 | val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ); | |
5944 | val &= ~DSPFREQGUAR_MASK; | |
5945 | val |= (cmd << DSPFREQGUAR_SHIFT); | |
5946 | vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val); | |
5947 | if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & | |
5948 | DSPFREQSTAT_MASK) == (cmd << DSPFREQSTAT_SHIFT), | |
5949 | 50)) { | |
5950 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
5951 | } | |
5952 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5953 | ||
54433e91 VS |
5954 | mutex_lock(&dev_priv->sb_lock); |
5955 | ||
dfcab17e | 5956 | if (cdclk == 400000) { |
6bcda4f0 | 5957 | u32 divider; |
30a970c6 | 5958 | |
6bcda4f0 | 5959 | divider = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1; |
30a970c6 | 5960 | |
30a970c6 JB |
5961 | /* adjust cdclk divider */ |
5962 | val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL); | |
87d5d259 | 5963 | val &= ~CCK_FREQUENCY_VALUES; |
30a970c6 JB |
5964 | val |= divider; |
5965 | vlv_cck_write(dev_priv, CCK_DISPLAY_CLOCK_CONTROL, val); | |
a877e801 VS |
5966 | |
5967 | if (wait_for((vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL) & | |
87d5d259 | 5968 | CCK_FREQUENCY_STATUS) == (divider << CCK_FREQUENCY_STATUS_SHIFT), |
a877e801 VS |
5969 | 50)) |
5970 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
30a970c6 JB |
5971 | } |
5972 | ||
30a970c6 JB |
5973 | /* adjust self-refresh exit latency value */ |
5974 | val = vlv_bunit_read(dev_priv, BUNIT_REG_BISOC); | |
5975 | val &= ~0x7f; | |
5976 | ||
5977 | /* | |
5978 | * For high bandwidth configs, we set a higher latency in the bunit | |
5979 | * so that the core display fetch happens in time to avoid underruns. | |
5980 | */ | |
dfcab17e | 5981 | if (cdclk == 400000) |
30a970c6 JB |
5982 | val |= 4500 / 250; /* 4.5 usec */ |
5983 | else | |
5984 | val |= 3000 / 250; /* 3.0 usec */ | |
5985 | vlv_bunit_write(dev_priv, BUNIT_REG_BISOC, val); | |
54433e91 | 5986 | |
a580516d | 5987 | mutex_unlock(&dev_priv->sb_lock); |
30a970c6 | 5988 | |
b6283055 | 5989 | intel_update_cdclk(dev); |
30a970c6 JB |
5990 | } |
5991 | ||
383c5a6a VS |
5992 | static void cherryview_set_cdclk(struct drm_device *dev, int cdclk) |
5993 | { | |
5994 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5995 | u32 val, cmd; | |
5996 | ||
164dfd28 VK |
5997 | WARN_ON(dev_priv->display.get_display_clock_speed(dev) |
5998 | != dev_priv->cdclk_freq); | |
383c5a6a VS |
5999 | |
6000 | switch (cdclk) { | |
383c5a6a VS |
6001 | case 333333: |
6002 | case 320000: | |
383c5a6a | 6003 | case 266667: |
383c5a6a | 6004 | case 200000: |
383c5a6a VS |
6005 | break; |
6006 | default: | |
5f77eeb0 | 6007 | MISSING_CASE(cdclk); |
383c5a6a VS |
6008 | return; |
6009 | } | |
6010 | ||
9d0d3fda VS |
6011 | /* |
6012 | * Specs are full of misinformation, but testing on actual | |
6013 | * hardware has shown that we just need to write the desired | |
6014 | * CCK divider into the Punit register. | |
6015 | */ | |
6016 | cmd = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1; | |
6017 | ||
383c5a6a VS |
6018 | mutex_lock(&dev_priv->rps.hw_lock); |
6019 | val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ); | |
6020 | val &= ~DSPFREQGUAR_MASK_CHV; | |
6021 | val |= (cmd << DSPFREQGUAR_SHIFT_CHV); | |
6022 | vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val); | |
6023 | if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & | |
6024 | DSPFREQSTAT_MASK_CHV) == (cmd << DSPFREQSTAT_SHIFT_CHV), | |
6025 | 50)) { | |
6026 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
6027 | } | |
6028 | mutex_unlock(&dev_priv->rps.hw_lock); | |
6029 | ||
b6283055 | 6030 | intel_update_cdclk(dev); |
383c5a6a VS |
6031 | } |
6032 | ||
30a970c6 JB |
6033 | static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv, |
6034 | int max_pixclk) | |
6035 | { | |
6bcda4f0 | 6036 | int freq_320 = (dev_priv->hpll_freq << 1) % 320000 != 0 ? 333333 : 320000; |
6cca3195 | 6037 | int limit = IS_CHERRYVIEW(dev_priv) ? 95 : 90; |
29dc7ef3 | 6038 | |
30a970c6 JB |
6039 | /* |
6040 | * Really only a few cases to deal with, as only 4 CDclks are supported: | |
6041 | * 200MHz | |
6042 | * 267MHz | |
29dc7ef3 | 6043 | * 320/333MHz (depends on HPLL freq) |
6cca3195 VS |
6044 | * 400MHz (VLV only) |
6045 | * So we check to see whether we're above 90% (VLV) or 95% (CHV) | |
6046 | * of the lower bin and adjust if needed. | |
e37c67a1 VS |
6047 | * |
6048 | * We seem to get an unstable or solid color picture at 200MHz. | |
6049 | * Not sure what's wrong. For now use 200MHz only when all pipes | |
6050 | * are off. | |
30a970c6 | 6051 | */ |
6cca3195 VS |
6052 | if (!IS_CHERRYVIEW(dev_priv) && |
6053 | max_pixclk > freq_320*limit/100) | |
dfcab17e | 6054 | return 400000; |
6cca3195 | 6055 | else if (max_pixclk > 266667*limit/100) |
29dc7ef3 | 6056 | return freq_320; |
e37c67a1 | 6057 | else if (max_pixclk > 0) |
dfcab17e | 6058 | return 266667; |
e37c67a1 VS |
6059 | else |
6060 | return 200000; | |
30a970c6 JB |
6061 | } |
6062 | ||
f8437dd1 VK |
6063 | static int broxton_calc_cdclk(struct drm_i915_private *dev_priv, |
6064 | int max_pixclk) | |
6065 | { | |
6066 | /* | |
6067 | * FIXME: | |
6068 | * - remove the guardband, it's not needed on BXT | |
6069 | * - set 19.2MHz bypass frequency if there are no active pipes | |
6070 | */ | |
6071 | if (max_pixclk > 576000*9/10) | |
6072 | return 624000; | |
6073 | else if (max_pixclk > 384000*9/10) | |
6074 | return 576000; | |
6075 | else if (max_pixclk > 288000*9/10) | |
6076 | return 384000; | |
6077 | else if (max_pixclk > 144000*9/10) | |
6078 | return 288000; | |
6079 | else | |
6080 | return 144000; | |
6081 | } | |
6082 | ||
a821fc46 ACO |
6083 | /* Compute the max pixel clock for new configuration. Uses atomic state if |
6084 | * that's non-NULL, look at current state otherwise. */ | |
6085 | static int intel_mode_max_pixclk(struct drm_device *dev, | |
6086 | struct drm_atomic_state *state) | |
30a970c6 | 6087 | { |
565602d7 ML |
6088 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
6089 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6090 | struct drm_crtc *crtc; | |
6091 | struct drm_crtc_state *crtc_state; | |
6092 | unsigned max_pixclk = 0, i; | |
6093 | enum pipe pipe; | |
30a970c6 | 6094 | |
565602d7 ML |
6095 | memcpy(intel_state->min_pixclk, dev_priv->min_pixclk, |
6096 | sizeof(intel_state->min_pixclk)); | |
304603f4 | 6097 | |
565602d7 ML |
6098 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
6099 | int pixclk = 0; | |
6100 | ||
6101 | if (crtc_state->enable) | |
6102 | pixclk = crtc_state->adjusted_mode.crtc_clock; | |
304603f4 | 6103 | |
565602d7 | 6104 | intel_state->min_pixclk[i] = pixclk; |
30a970c6 JB |
6105 | } |
6106 | ||
565602d7 ML |
6107 | if (!intel_state->active_crtcs) |
6108 | return 0; | |
6109 | ||
6110 | for_each_pipe(dev_priv, pipe) | |
6111 | max_pixclk = max(intel_state->min_pixclk[pipe], max_pixclk); | |
6112 | ||
30a970c6 JB |
6113 | return max_pixclk; |
6114 | } | |
6115 | ||
27c329ed | 6116 | static int valleyview_modeset_calc_cdclk(struct drm_atomic_state *state) |
30a970c6 | 6117 | { |
27c329ed ML |
6118 | struct drm_device *dev = state->dev; |
6119 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6120 | int max_pixclk = intel_mode_max_pixclk(dev, state); | |
1a617b77 ML |
6121 | struct intel_atomic_state *intel_state = |
6122 | to_intel_atomic_state(state); | |
30a970c6 | 6123 | |
304603f4 ACO |
6124 | if (max_pixclk < 0) |
6125 | return max_pixclk; | |
30a970c6 | 6126 | |
1a617b77 | 6127 | intel_state->cdclk = intel_state->dev_cdclk = |
27c329ed | 6128 | valleyview_calc_cdclk(dev_priv, max_pixclk); |
0a9ab303 | 6129 | |
1a617b77 ML |
6130 | if (!intel_state->active_crtcs) |
6131 | intel_state->dev_cdclk = valleyview_calc_cdclk(dev_priv, 0); | |
6132 | ||
27c329ed ML |
6133 | return 0; |
6134 | } | |
304603f4 | 6135 | |
27c329ed ML |
6136 | static int broxton_modeset_calc_cdclk(struct drm_atomic_state *state) |
6137 | { | |
6138 | struct drm_device *dev = state->dev; | |
6139 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6140 | int max_pixclk = intel_mode_max_pixclk(dev, state); | |
1a617b77 ML |
6141 | struct intel_atomic_state *intel_state = |
6142 | to_intel_atomic_state(state); | |
85a96e7a | 6143 | |
27c329ed ML |
6144 | if (max_pixclk < 0) |
6145 | return max_pixclk; | |
85a96e7a | 6146 | |
1a617b77 | 6147 | intel_state->cdclk = intel_state->dev_cdclk = |
27c329ed | 6148 | broxton_calc_cdclk(dev_priv, max_pixclk); |
85a96e7a | 6149 | |
1a617b77 ML |
6150 | if (!intel_state->active_crtcs) |
6151 | intel_state->dev_cdclk = broxton_calc_cdclk(dev_priv, 0); | |
6152 | ||
27c329ed | 6153 | return 0; |
30a970c6 JB |
6154 | } |
6155 | ||
1e69cd74 VS |
6156 | static void vlv_program_pfi_credits(struct drm_i915_private *dev_priv) |
6157 | { | |
6158 | unsigned int credits, default_credits; | |
6159 | ||
6160 | if (IS_CHERRYVIEW(dev_priv)) | |
6161 | default_credits = PFI_CREDIT(12); | |
6162 | else | |
6163 | default_credits = PFI_CREDIT(8); | |
6164 | ||
bfa7df01 | 6165 | if (dev_priv->cdclk_freq >= dev_priv->czclk_freq) { |
1e69cd74 VS |
6166 | /* CHV suggested value is 31 or 63 */ |
6167 | if (IS_CHERRYVIEW(dev_priv)) | |
fcc0008f | 6168 | credits = PFI_CREDIT_63; |
1e69cd74 VS |
6169 | else |
6170 | credits = PFI_CREDIT(15); | |
6171 | } else { | |
6172 | credits = default_credits; | |
6173 | } | |
6174 | ||
6175 | /* | |
6176 | * WA - write default credits before re-programming | |
6177 | * FIXME: should we also set the resend bit here? | |
6178 | */ | |
6179 | I915_WRITE(GCI_CONTROL, VGA_FAST_MODE_DISABLE | | |
6180 | default_credits); | |
6181 | ||
6182 | I915_WRITE(GCI_CONTROL, VGA_FAST_MODE_DISABLE | | |
6183 | credits | PFI_CREDIT_RESEND); | |
6184 | ||
6185 | /* | |
6186 | * FIXME is this guaranteed to clear | |
6187 | * immediately or should we poll for it? | |
6188 | */ | |
6189 | WARN_ON(I915_READ(GCI_CONTROL) & PFI_CREDIT_RESEND); | |
6190 | } | |
6191 | ||
27c329ed | 6192 | static void valleyview_modeset_commit_cdclk(struct drm_atomic_state *old_state) |
30a970c6 | 6193 | { |
a821fc46 | 6194 | struct drm_device *dev = old_state->dev; |
30a970c6 | 6195 | struct drm_i915_private *dev_priv = dev->dev_private; |
1a617b77 ML |
6196 | struct intel_atomic_state *old_intel_state = |
6197 | to_intel_atomic_state(old_state); | |
6198 | unsigned req_cdclk = old_intel_state->dev_cdclk; | |
30a970c6 | 6199 | |
27c329ed ML |
6200 | /* |
6201 | * FIXME: We can end up here with all power domains off, yet | |
6202 | * with a CDCLK frequency other than the minimum. To account | |
6203 | * for this take the PIPE-A power domain, which covers the HW | |
6204 | * blocks needed for the following programming. This can be | |
6205 | * removed once it's guaranteed that we get here either with | |
6206 | * the minimum CDCLK set, or the required power domains | |
6207 | * enabled. | |
6208 | */ | |
6209 | intel_display_power_get(dev_priv, POWER_DOMAIN_PIPE_A); | |
738c05c0 | 6210 | |
27c329ed ML |
6211 | if (IS_CHERRYVIEW(dev)) |
6212 | cherryview_set_cdclk(dev, req_cdclk); | |
6213 | else | |
6214 | valleyview_set_cdclk(dev, req_cdclk); | |
738c05c0 | 6215 | |
27c329ed | 6216 | vlv_program_pfi_credits(dev_priv); |
1e69cd74 | 6217 | |
27c329ed | 6218 | intel_display_power_put(dev_priv, POWER_DOMAIN_PIPE_A); |
30a970c6 JB |
6219 | } |
6220 | ||
89b667f8 JB |
6221 | static void valleyview_crtc_enable(struct drm_crtc *crtc) |
6222 | { | |
6223 | struct drm_device *dev = crtc->dev; | |
a72e4c9f | 6224 | struct drm_i915_private *dev_priv = to_i915(dev); |
89b667f8 JB |
6225 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6226 | struct intel_encoder *encoder; | |
6227 | int pipe = intel_crtc->pipe; | |
89b667f8 | 6228 | |
53d9f4e9 | 6229 | if (WARN_ON(intel_crtc->active)) |
89b667f8 JB |
6230 | return; |
6231 | ||
6e3c9717 | 6232 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 6233 | intel_dp_set_m_n(intel_crtc, M1_N1); |
5b18e57c DV |
6234 | |
6235 | intel_set_pipe_timings(intel_crtc); | |
6236 | ||
c14b0485 VS |
6237 | if (IS_CHERRYVIEW(dev) && pipe == PIPE_B) { |
6238 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6239 | ||
6240 | I915_WRITE(CHV_BLEND(pipe), CHV_BLEND_LEGACY); | |
6241 | I915_WRITE(CHV_CANVAS(pipe), 0); | |
6242 | } | |
6243 | ||
5b18e57c DV |
6244 | i9xx_set_pipeconf(intel_crtc); |
6245 | ||
89b667f8 | 6246 | intel_crtc->active = true; |
89b667f8 | 6247 | |
a72e4c9f | 6248 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 6249 | |
89b667f8 JB |
6250 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6251 | if (encoder->pre_pll_enable) | |
6252 | encoder->pre_pll_enable(encoder); | |
6253 | ||
a65347ba | 6254 | if (!intel_crtc->config->has_dsi_encoder) { |
c0b4c660 VS |
6255 | if (IS_CHERRYVIEW(dev)) { |
6256 | chv_prepare_pll(intel_crtc, intel_crtc->config); | |
6e3c9717 | 6257 | chv_enable_pll(intel_crtc, intel_crtc->config); |
c0b4c660 VS |
6258 | } else { |
6259 | vlv_prepare_pll(intel_crtc, intel_crtc->config); | |
6e3c9717 | 6260 | vlv_enable_pll(intel_crtc, intel_crtc->config); |
c0b4c660 | 6261 | } |
9d556c99 | 6262 | } |
89b667f8 JB |
6263 | |
6264 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
6265 | if (encoder->pre_enable) | |
6266 | encoder->pre_enable(encoder); | |
6267 | ||
2dd24552 JB |
6268 | i9xx_pfit_enable(intel_crtc); |
6269 | ||
63cbb074 VS |
6270 | intel_crtc_load_lut(crtc); |
6271 | ||
e1fdc473 | 6272 | intel_enable_pipe(intel_crtc); |
be6a6f8e | 6273 | |
4b3a9526 VS |
6274 | assert_vblank_disabled(crtc); |
6275 | drm_crtc_vblank_on(crtc); | |
6276 | ||
f9b61ff6 DV |
6277 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6278 | encoder->enable(encoder); | |
89b667f8 JB |
6279 | } |
6280 | ||
f13c2ef3 DV |
6281 | static void i9xx_set_pll_dividers(struct intel_crtc *crtc) |
6282 | { | |
6283 | struct drm_device *dev = crtc->base.dev; | |
6284 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6285 | ||
6e3c9717 ACO |
6286 | I915_WRITE(FP0(crtc->pipe), crtc->config->dpll_hw_state.fp0); |
6287 | I915_WRITE(FP1(crtc->pipe), crtc->config->dpll_hw_state.fp1); | |
f13c2ef3 DV |
6288 | } |
6289 | ||
0b8765c6 | 6290 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
6291 | { |
6292 | struct drm_device *dev = crtc->dev; | |
a72e4c9f | 6293 | struct drm_i915_private *dev_priv = to_i915(dev); |
79e53945 | 6294 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
ef9c3aee | 6295 | struct intel_encoder *encoder; |
79e53945 | 6296 | int pipe = intel_crtc->pipe; |
79e53945 | 6297 | |
53d9f4e9 | 6298 | if (WARN_ON(intel_crtc->active)) |
f7abfe8b CW |
6299 | return; |
6300 | ||
f13c2ef3 DV |
6301 | i9xx_set_pll_dividers(intel_crtc); |
6302 | ||
6e3c9717 | 6303 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 6304 | intel_dp_set_m_n(intel_crtc, M1_N1); |
5b18e57c DV |
6305 | |
6306 | intel_set_pipe_timings(intel_crtc); | |
6307 | ||
5b18e57c DV |
6308 | i9xx_set_pipeconf(intel_crtc); |
6309 | ||
f7abfe8b | 6310 | intel_crtc->active = true; |
6b383a7f | 6311 | |
4a3436e8 | 6312 | if (!IS_GEN2(dev)) |
a72e4c9f | 6313 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 6314 | |
9d6d9f19 MK |
6315 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6316 | if (encoder->pre_enable) | |
6317 | encoder->pre_enable(encoder); | |
6318 | ||
f6736a1a DV |
6319 | i9xx_enable_pll(intel_crtc); |
6320 | ||
2dd24552 JB |
6321 | i9xx_pfit_enable(intel_crtc); |
6322 | ||
63cbb074 VS |
6323 | intel_crtc_load_lut(crtc); |
6324 | ||
f37fcc2a | 6325 | intel_update_watermarks(crtc); |
e1fdc473 | 6326 | intel_enable_pipe(intel_crtc); |
be6a6f8e | 6327 | |
4b3a9526 VS |
6328 | assert_vblank_disabled(crtc); |
6329 | drm_crtc_vblank_on(crtc); | |
6330 | ||
f9b61ff6 DV |
6331 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6332 | encoder->enable(encoder); | |
d029bcad PZ |
6333 | |
6334 | intel_fbc_enable(intel_crtc); | |
0b8765c6 | 6335 | } |
79e53945 | 6336 | |
87476d63 DV |
6337 | static void i9xx_pfit_disable(struct intel_crtc *crtc) |
6338 | { | |
6339 | struct drm_device *dev = crtc->base.dev; | |
6340 | struct drm_i915_private *dev_priv = dev->dev_private; | |
87476d63 | 6341 | |
6e3c9717 | 6342 | if (!crtc->config->gmch_pfit.control) |
328d8e82 | 6343 | return; |
87476d63 | 6344 | |
328d8e82 | 6345 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87476d63 | 6346 | |
328d8e82 DV |
6347 | DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n", |
6348 | I915_READ(PFIT_CONTROL)); | |
6349 | I915_WRITE(PFIT_CONTROL, 0); | |
87476d63 DV |
6350 | } |
6351 | ||
0b8765c6 JB |
6352 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
6353 | { | |
6354 | struct drm_device *dev = crtc->dev; | |
6355 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6356 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 6357 | struct intel_encoder *encoder; |
0b8765c6 | 6358 | int pipe = intel_crtc->pipe; |
ef9c3aee | 6359 | |
6304cd91 VS |
6360 | /* |
6361 | * On gen2 planes are double buffered but the pipe isn't, so we must | |
6362 | * wait for planes to fully turn off before disabling the pipe. | |
564ed191 ID |
6363 | * We also need to wait on all gmch platforms because of the |
6364 | * self-refresh mode constraint explained above. | |
6304cd91 | 6365 | */ |
564ed191 | 6366 | intel_wait_for_vblank(dev, pipe); |
6304cd91 | 6367 | |
4b3a9526 VS |
6368 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6369 | encoder->disable(encoder); | |
6370 | ||
f9b61ff6 DV |
6371 | drm_crtc_vblank_off(crtc); |
6372 | assert_vblank_disabled(crtc); | |
6373 | ||
575f7ab7 | 6374 | intel_disable_pipe(intel_crtc); |
24a1f16d | 6375 | |
87476d63 | 6376 | i9xx_pfit_disable(intel_crtc); |
24a1f16d | 6377 | |
89b667f8 JB |
6378 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6379 | if (encoder->post_disable) | |
6380 | encoder->post_disable(encoder); | |
6381 | ||
a65347ba | 6382 | if (!intel_crtc->config->has_dsi_encoder) { |
076ed3b2 CML |
6383 | if (IS_CHERRYVIEW(dev)) |
6384 | chv_disable_pll(dev_priv, pipe); | |
6385 | else if (IS_VALLEYVIEW(dev)) | |
6386 | vlv_disable_pll(dev_priv, pipe); | |
6387 | else | |
1c4e0274 | 6388 | i9xx_disable_pll(intel_crtc); |
076ed3b2 | 6389 | } |
0b8765c6 | 6390 | |
d6db995f VS |
6391 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6392 | if (encoder->post_pll_disable) | |
6393 | encoder->post_pll_disable(encoder); | |
6394 | ||
4a3436e8 | 6395 | if (!IS_GEN2(dev)) |
a72e4c9f | 6396 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); |
d029bcad PZ |
6397 | |
6398 | intel_fbc_disable_crtc(intel_crtc); | |
0b8765c6 JB |
6399 | } |
6400 | ||
b17d48e2 ML |
6401 | static void intel_crtc_disable_noatomic(struct drm_crtc *crtc) |
6402 | { | |
6403 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6404 | struct drm_i915_private *dev_priv = to_i915(crtc->dev); | |
6405 | enum intel_display_power_domain domain; | |
6406 | unsigned long domains; | |
6407 | ||
6408 | if (!intel_crtc->active) | |
6409 | return; | |
6410 | ||
a539205a | 6411 | if (to_intel_plane_state(crtc->primary->state)->visible) { |
fc32b1fd ML |
6412 | WARN_ON(intel_crtc->unpin_work); |
6413 | ||
a539205a | 6414 | intel_pre_disable_primary(crtc); |
54a41961 ML |
6415 | |
6416 | intel_crtc_disable_planes(crtc, 1 << drm_plane_index(crtc->primary)); | |
6417 | to_intel_plane_state(crtc->primary->state)->visible = false; | |
a539205a ML |
6418 | } |
6419 | ||
b17d48e2 | 6420 | dev_priv->display.crtc_disable(crtc); |
37d9078b MR |
6421 | intel_crtc->active = false; |
6422 | intel_update_watermarks(crtc); | |
1f7457b1 | 6423 | intel_disable_shared_dpll(intel_crtc); |
b17d48e2 ML |
6424 | |
6425 | domains = intel_crtc->enabled_power_domains; | |
6426 | for_each_power_domain(domain, domains) | |
6427 | intel_display_power_put(dev_priv, domain); | |
6428 | intel_crtc->enabled_power_domains = 0; | |
565602d7 ML |
6429 | |
6430 | dev_priv->active_crtcs &= ~(1 << intel_crtc->pipe); | |
6431 | dev_priv->min_pixclk[intel_crtc->pipe] = 0; | |
b17d48e2 ML |
6432 | } |
6433 | ||
6b72d486 ML |
6434 | /* |
6435 | * turn all crtc's off, but do not adjust state | |
6436 | * This has to be paired with a call to intel_modeset_setup_hw_state. | |
6437 | */ | |
70e0bd74 | 6438 | int intel_display_suspend(struct drm_device *dev) |
ee7b9f93 | 6439 | { |
70e0bd74 ML |
6440 | struct drm_mode_config *config = &dev->mode_config; |
6441 | struct drm_modeset_acquire_ctx *ctx = config->acquire_ctx; | |
6442 | struct drm_atomic_state *state; | |
6b72d486 | 6443 | struct drm_crtc *crtc; |
70e0bd74 ML |
6444 | unsigned crtc_mask = 0; |
6445 | int ret = 0; | |
6446 | ||
6447 | if (WARN_ON(!ctx)) | |
6448 | return 0; | |
6449 | ||
6450 | lockdep_assert_held(&ctx->ww_ctx); | |
6451 | state = drm_atomic_state_alloc(dev); | |
6452 | if (WARN_ON(!state)) | |
6453 | return -ENOMEM; | |
6454 | ||
6455 | state->acquire_ctx = ctx; | |
6456 | state->allow_modeset = true; | |
6457 | ||
6458 | for_each_crtc(dev, crtc) { | |
6459 | struct drm_crtc_state *crtc_state = | |
6460 | drm_atomic_get_crtc_state(state, crtc); | |
6b72d486 | 6461 | |
70e0bd74 ML |
6462 | ret = PTR_ERR_OR_ZERO(crtc_state); |
6463 | if (ret) | |
6464 | goto free; | |
6465 | ||
6466 | if (!crtc_state->active) | |
6467 | continue; | |
6468 | ||
6469 | crtc_state->active = false; | |
6470 | crtc_mask |= 1 << drm_crtc_index(crtc); | |
6471 | } | |
6472 | ||
6473 | if (crtc_mask) { | |
74c090b1 | 6474 | ret = drm_atomic_commit(state); |
70e0bd74 ML |
6475 | |
6476 | if (!ret) { | |
6477 | for_each_crtc(dev, crtc) | |
6478 | if (crtc_mask & (1 << drm_crtc_index(crtc))) | |
6479 | crtc->state->active = true; | |
6480 | ||
6481 | return ret; | |
6482 | } | |
6483 | } | |
6484 | ||
6485 | free: | |
6486 | if (ret) | |
6487 | DRM_ERROR("Suspending crtc's failed with %i\n", ret); | |
6488 | drm_atomic_state_free(state); | |
6489 | return ret; | |
ee7b9f93 JB |
6490 | } |
6491 | ||
ea5b213a | 6492 | void intel_encoder_destroy(struct drm_encoder *encoder) |
7e7d76c3 | 6493 | { |
4ef69c7a | 6494 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 6495 | |
ea5b213a CW |
6496 | drm_encoder_cleanup(encoder); |
6497 | kfree(intel_encoder); | |
7e7d76c3 JB |
6498 | } |
6499 | ||
0a91ca29 DV |
6500 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
6501 | * internal consistency). */ | |
b980514c | 6502 | static void intel_connector_check_state(struct intel_connector *connector) |
79e53945 | 6503 | { |
35dd3c64 ML |
6504 | struct drm_crtc *crtc = connector->base.state->crtc; |
6505 | ||
6506 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
6507 | connector->base.base.id, | |
6508 | connector->base.name); | |
6509 | ||
0a91ca29 | 6510 | if (connector->get_hw_state(connector)) { |
e85376cb | 6511 | struct intel_encoder *encoder = connector->encoder; |
35dd3c64 | 6512 | struct drm_connector_state *conn_state = connector->base.state; |
0a91ca29 | 6513 | |
35dd3c64 ML |
6514 | I915_STATE_WARN(!crtc, |
6515 | "connector enabled without attached crtc\n"); | |
0a91ca29 | 6516 | |
35dd3c64 ML |
6517 | if (!crtc) |
6518 | return; | |
6519 | ||
6520 | I915_STATE_WARN(!crtc->state->active, | |
6521 | "connector is active, but attached crtc isn't\n"); | |
6522 | ||
e85376cb | 6523 | if (!encoder || encoder->type == INTEL_OUTPUT_DP_MST) |
35dd3c64 ML |
6524 | return; |
6525 | ||
e85376cb | 6526 | I915_STATE_WARN(conn_state->best_encoder != &encoder->base, |
35dd3c64 ML |
6527 | "atomic encoder doesn't match attached encoder\n"); |
6528 | ||
e85376cb | 6529 | I915_STATE_WARN(conn_state->crtc != encoder->base.crtc, |
35dd3c64 ML |
6530 | "attached encoder crtc differs from connector crtc\n"); |
6531 | } else { | |
4d688a2a ML |
6532 | I915_STATE_WARN(crtc && crtc->state->active, |
6533 | "attached crtc is active, but connector isn't\n"); | |
35dd3c64 ML |
6534 | I915_STATE_WARN(!crtc && connector->base.state->best_encoder, |
6535 | "best encoder set without crtc!\n"); | |
0a91ca29 | 6536 | } |
79e53945 JB |
6537 | } |
6538 | ||
08d9bc92 ACO |
6539 | int intel_connector_init(struct intel_connector *connector) |
6540 | { | |
6541 | struct drm_connector_state *connector_state; | |
6542 | ||
6543 | connector_state = kzalloc(sizeof *connector_state, GFP_KERNEL); | |
6544 | if (!connector_state) | |
6545 | return -ENOMEM; | |
6546 | ||
6547 | connector->base.state = connector_state; | |
6548 | return 0; | |
6549 | } | |
6550 | ||
6551 | struct intel_connector *intel_connector_alloc(void) | |
6552 | { | |
6553 | struct intel_connector *connector; | |
6554 | ||
6555 | connector = kzalloc(sizeof *connector, GFP_KERNEL); | |
6556 | if (!connector) | |
6557 | return NULL; | |
6558 | ||
6559 | if (intel_connector_init(connector) < 0) { | |
6560 | kfree(connector); | |
6561 | return NULL; | |
6562 | } | |
6563 | ||
6564 | return connector; | |
6565 | } | |
6566 | ||
f0947c37 DV |
6567 | /* Simple connector->get_hw_state implementation for encoders that support only |
6568 | * one connector and no cloning and hence the encoder state determines the state | |
6569 | * of the connector. */ | |
6570 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
ea5b213a | 6571 | { |
24929352 | 6572 | enum pipe pipe = 0; |
f0947c37 | 6573 | struct intel_encoder *encoder = connector->encoder; |
ea5b213a | 6574 | |
f0947c37 | 6575 | return encoder->get_hw_state(encoder, &pipe); |
ea5b213a CW |
6576 | } |
6577 | ||
6d293983 | 6578 | static int pipe_required_fdi_lanes(struct intel_crtc_state *crtc_state) |
d272ddfa | 6579 | { |
6d293983 ACO |
6580 | if (crtc_state->base.enable && crtc_state->has_pch_encoder) |
6581 | return crtc_state->fdi_lanes; | |
d272ddfa VS |
6582 | |
6583 | return 0; | |
6584 | } | |
6585 | ||
6d293983 | 6586 | static int ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe, |
5cec258b | 6587 | struct intel_crtc_state *pipe_config) |
1857e1da | 6588 | { |
6d293983 ACO |
6589 | struct drm_atomic_state *state = pipe_config->base.state; |
6590 | struct intel_crtc *other_crtc; | |
6591 | struct intel_crtc_state *other_crtc_state; | |
6592 | ||
1857e1da DV |
6593 | DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n", |
6594 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6595 | if (pipe_config->fdi_lanes > 4) { | |
6596 | DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n", | |
6597 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6d293983 | 6598 | return -EINVAL; |
1857e1da DV |
6599 | } |
6600 | ||
bafb6553 | 6601 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
1857e1da DV |
6602 | if (pipe_config->fdi_lanes > 2) { |
6603 | DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n", | |
6604 | pipe_config->fdi_lanes); | |
6d293983 | 6605 | return -EINVAL; |
1857e1da | 6606 | } else { |
6d293983 | 6607 | return 0; |
1857e1da DV |
6608 | } |
6609 | } | |
6610 | ||
6611 | if (INTEL_INFO(dev)->num_pipes == 2) | |
6d293983 | 6612 | return 0; |
1857e1da DV |
6613 | |
6614 | /* Ivybridge 3 pipe is really complicated */ | |
6615 | switch (pipe) { | |
6616 | case PIPE_A: | |
6d293983 | 6617 | return 0; |
1857e1da | 6618 | case PIPE_B: |
6d293983 ACO |
6619 | if (pipe_config->fdi_lanes <= 2) |
6620 | return 0; | |
6621 | ||
6622 | other_crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev, PIPE_C)); | |
6623 | other_crtc_state = | |
6624 | intel_atomic_get_crtc_state(state, other_crtc); | |
6625 | if (IS_ERR(other_crtc_state)) | |
6626 | return PTR_ERR(other_crtc_state); | |
6627 | ||
6628 | if (pipe_required_fdi_lanes(other_crtc_state) > 0) { | |
1857e1da DV |
6629 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n", |
6630 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6d293983 | 6631 | return -EINVAL; |
1857e1da | 6632 | } |
6d293983 | 6633 | return 0; |
1857e1da | 6634 | case PIPE_C: |
251cc67c VS |
6635 | if (pipe_config->fdi_lanes > 2) { |
6636 | DRM_DEBUG_KMS("only 2 lanes on pipe %c: required %i lanes\n", | |
6637 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6d293983 | 6638 | return -EINVAL; |
251cc67c | 6639 | } |
6d293983 ACO |
6640 | |
6641 | other_crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev, PIPE_B)); | |
6642 | other_crtc_state = | |
6643 | intel_atomic_get_crtc_state(state, other_crtc); | |
6644 | if (IS_ERR(other_crtc_state)) | |
6645 | return PTR_ERR(other_crtc_state); | |
6646 | ||
6647 | if (pipe_required_fdi_lanes(other_crtc_state) > 2) { | |
1857e1da | 6648 | DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n"); |
6d293983 | 6649 | return -EINVAL; |
1857e1da | 6650 | } |
6d293983 | 6651 | return 0; |
1857e1da DV |
6652 | default: |
6653 | BUG(); | |
6654 | } | |
6655 | } | |
6656 | ||
e29c22c0 DV |
6657 | #define RETRY 1 |
6658 | static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc, | |
5cec258b | 6659 | struct intel_crtc_state *pipe_config) |
877d48d5 | 6660 | { |
1857e1da | 6661 | struct drm_device *dev = intel_crtc->base.dev; |
7c5f93b0 | 6662 | const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
6d293983 ACO |
6663 | int lane, link_bw, fdi_dotclock, ret; |
6664 | bool needs_recompute = false; | |
877d48d5 | 6665 | |
e29c22c0 | 6666 | retry: |
877d48d5 DV |
6667 | /* FDI is a binary signal running at ~2.7GHz, encoding |
6668 | * each output octet as 10 bits. The actual frequency | |
6669 | * is stored as a divider into a 100MHz clock, and the | |
6670 | * mode pixel clock is stored in units of 1KHz. | |
6671 | * Hence the bw of each lane in terms of the mode signal | |
6672 | * is: | |
6673 | */ | |
6674 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
6675 | ||
241bfc38 | 6676 | fdi_dotclock = adjusted_mode->crtc_clock; |
877d48d5 | 6677 | |
2bd89a07 | 6678 | lane = ironlake_get_lanes_required(fdi_dotclock, link_bw, |
877d48d5 DV |
6679 | pipe_config->pipe_bpp); |
6680 | ||
6681 | pipe_config->fdi_lanes = lane; | |
6682 | ||
2bd89a07 | 6683 | intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock, |
877d48d5 | 6684 | link_bw, &pipe_config->fdi_m_n); |
1857e1da | 6685 | |
6d293983 ACO |
6686 | ret = ironlake_check_fdi_lanes(intel_crtc->base.dev, |
6687 | intel_crtc->pipe, pipe_config); | |
6688 | if (ret == -EINVAL && pipe_config->pipe_bpp > 6*3) { | |
e29c22c0 DV |
6689 | pipe_config->pipe_bpp -= 2*3; |
6690 | DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n", | |
6691 | pipe_config->pipe_bpp); | |
6692 | needs_recompute = true; | |
6693 | pipe_config->bw_constrained = true; | |
6694 | ||
6695 | goto retry; | |
6696 | } | |
6697 | ||
6698 | if (needs_recompute) | |
6699 | return RETRY; | |
6700 | ||
6d293983 | 6701 | return ret; |
877d48d5 DV |
6702 | } |
6703 | ||
8cfb3407 VS |
6704 | static bool pipe_config_supports_ips(struct drm_i915_private *dev_priv, |
6705 | struct intel_crtc_state *pipe_config) | |
6706 | { | |
6707 | if (pipe_config->pipe_bpp > 24) | |
6708 | return false; | |
6709 | ||
6710 | /* HSW can handle pixel rate up to cdclk? */ | |
6711 | if (IS_HASWELL(dev_priv->dev)) | |
6712 | return true; | |
6713 | ||
6714 | /* | |
b432e5cf VS |
6715 | * We compare against max which means we must take |
6716 | * the increased cdclk requirement into account when | |
6717 | * calculating the new cdclk. | |
6718 | * | |
6719 | * Should measure whether using a lower cdclk w/o IPS | |
8cfb3407 VS |
6720 | */ |
6721 | return ilk_pipe_pixel_rate(pipe_config) <= | |
6722 | dev_priv->max_cdclk_freq * 95 / 100; | |
6723 | } | |
6724 | ||
42db64ef | 6725 | static void hsw_compute_ips_config(struct intel_crtc *crtc, |
5cec258b | 6726 | struct intel_crtc_state *pipe_config) |
42db64ef | 6727 | { |
8cfb3407 VS |
6728 | struct drm_device *dev = crtc->base.dev; |
6729 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6730 | ||
d330a953 | 6731 | pipe_config->ips_enabled = i915.enable_ips && |
8cfb3407 VS |
6732 | hsw_crtc_supports_ips(crtc) && |
6733 | pipe_config_supports_ips(dev_priv, pipe_config); | |
42db64ef PZ |
6734 | } |
6735 | ||
39acb4aa VS |
6736 | static bool intel_crtc_supports_double_wide(const struct intel_crtc *crtc) |
6737 | { | |
6738 | const struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); | |
6739 | ||
6740 | /* GDG double wide on either pipe, otherwise pipe A only */ | |
6741 | return INTEL_INFO(dev_priv)->gen < 4 && | |
6742 | (crtc->pipe == PIPE_A || IS_I915G(dev_priv)); | |
6743 | } | |
6744 | ||
a43f6e0f | 6745 | static int intel_crtc_compute_config(struct intel_crtc *crtc, |
5cec258b | 6746 | struct intel_crtc_state *pipe_config) |
79e53945 | 6747 | { |
a43f6e0f | 6748 | struct drm_device *dev = crtc->base.dev; |
8bd31e67 | 6749 | struct drm_i915_private *dev_priv = dev->dev_private; |
7c5f93b0 | 6750 | const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
89749350 | 6751 | |
ad3a4479 | 6752 | /* FIXME should check pixel clock limits on all platforms */ |
cf532bb2 | 6753 | if (INTEL_INFO(dev)->gen < 4) { |
39acb4aa | 6754 | int clock_limit = dev_priv->max_cdclk_freq * 9 / 10; |
cf532bb2 VS |
6755 | |
6756 | /* | |
39acb4aa | 6757 | * Enable double wide mode when the dot clock |
cf532bb2 | 6758 | * is > 90% of the (display) core speed. |
cf532bb2 | 6759 | */ |
39acb4aa VS |
6760 | if (intel_crtc_supports_double_wide(crtc) && |
6761 | adjusted_mode->crtc_clock > clock_limit) { | |
ad3a4479 | 6762 | clock_limit *= 2; |
cf532bb2 | 6763 | pipe_config->double_wide = true; |
ad3a4479 VS |
6764 | } |
6765 | ||
39acb4aa VS |
6766 | if (adjusted_mode->crtc_clock > clock_limit) { |
6767 | DRM_DEBUG_KMS("requested pixel clock (%d kHz) too high (max: %d kHz, double wide: %s)\n", | |
6768 | adjusted_mode->crtc_clock, clock_limit, | |
6769 | yesno(pipe_config->double_wide)); | |
e29c22c0 | 6770 | return -EINVAL; |
39acb4aa | 6771 | } |
2c07245f | 6772 | } |
89749350 | 6773 | |
1d1d0e27 VS |
6774 | /* |
6775 | * Pipe horizontal size must be even in: | |
6776 | * - DVO ganged mode | |
6777 | * - LVDS dual channel mode | |
6778 | * - Double wide pipe | |
6779 | */ | |
a93e255f | 6780 | if ((intel_pipe_will_have_type(pipe_config, INTEL_OUTPUT_LVDS) && |
1d1d0e27 VS |
6781 | intel_is_dual_link_lvds(dev)) || pipe_config->double_wide) |
6782 | pipe_config->pipe_src_w &= ~1; | |
6783 | ||
8693a824 DL |
6784 | /* Cantiga+ cannot handle modes with a hsync front porch of 0. |
6785 | * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw. | |
44f46b42 CW |
6786 | */ |
6787 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && | |
aad941d5 | 6788 | adjusted_mode->crtc_hsync_start == adjusted_mode->crtc_hdisplay) |
e29c22c0 | 6789 | return -EINVAL; |
44f46b42 | 6790 | |
f5adf94e | 6791 | if (HAS_IPS(dev)) |
a43f6e0f DV |
6792 | hsw_compute_ips_config(crtc, pipe_config); |
6793 | ||
877d48d5 | 6794 | if (pipe_config->has_pch_encoder) |
a43f6e0f | 6795 | return ironlake_fdi_compute_config(crtc, pipe_config); |
877d48d5 | 6796 | |
cf5a15be | 6797 | return 0; |
79e53945 JB |
6798 | } |
6799 | ||
1652d19e VS |
6800 | static int skylake_get_display_clock_speed(struct drm_device *dev) |
6801 | { | |
6802 | struct drm_i915_private *dev_priv = to_i915(dev); | |
6803 | uint32_t lcpll1 = I915_READ(LCPLL1_CTL); | |
6804 | uint32_t cdctl = I915_READ(CDCLK_CTL); | |
6805 | uint32_t linkrate; | |
6806 | ||
414355a7 | 6807 | if (!(lcpll1 & LCPLL_PLL_ENABLE)) |
1652d19e | 6808 | return 24000; /* 24MHz is the cd freq with NSSC ref */ |
1652d19e VS |
6809 | |
6810 | if ((cdctl & CDCLK_FREQ_SEL_MASK) == CDCLK_FREQ_540) | |
6811 | return 540000; | |
6812 | ||
6813 | linkrate = (I915_READ(DPLL_CTRL1) & | |
71cd8423 | 6814 | DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0)) >> 1; |
1652d19e | 6815 | |
71cd8423 DL |
6816 | if (linkrate == DPLL_CTRL1_LINK_RATE_2160 || |
6817 | linkrate == DPLL_CTRL1_LINK_RATE_1080) { | |
1652d19e VS |
6818 | /* vco 8640 */ |
6819 | switch (cdctl & CDCLK_FREQ_SEL_MASK) { | |
6820 | case CDCLK_FREQ_450_432: | |
6821 | return 432000; | |
6822 | case CDCLK_FREQ_337_308: | |
6823 | return 308570; | |
6824 | case CDCLK_FREQ_675_617: | |
6825 | return 617140; | |
6826 | default: | |
6827 | WARN(1, "Unknown cd freq selection\n"); | |
6828 | } | |
6829 | } else { | |
6830 | /* vco 8100 */ | |
6831 | switch (cdctl & CDCLK_FREQ_SEL_MASK) { | |
6832 | case CDCLK_FREQ_450_432: | |
6833 | return 450000; | |
6834 | case CDCLK_FREQ_337_308: | |
6835 | return 337500; | |
6836 | case CDCLK_FREQ_675_617: | |
6837 | return 675000; | |
6838 | default: | |
6839 | WARN(1, "Unknown cd freq selection\n"); | |
6840 | } | |
6841 | } | |
6842 | ||
6843 | /* error case, do as if DPLL0 isn't enabled */ | |
6844 | return 24000; | |
6845 | } | |
6846 | ||
acd3f3d3 BP |
6847 | static int broxton_get_display_clock_speed(struct drm_device *dev) |
6848 | { | |
6849 | struct drm_i915_private *dev_priv = to_i915(dev); | |
6850 | uint32_t cdctl = I915_READ(CDCLK_CTL); | |
6851 | uint32_t pll_ratio = I915_READ(BXT_DE_PLL_CTL) & BXT_DE_PLL_RATIO_MASK; | |
6852 | uint32_t pll_enab = I915_READ(BXT_DE_PLL_ENABLE); | |
6853 | int cdclk; | |
6854 | ||
6855 | if (!(pll_enab & BXT_DE_PLL_PLL_ENABLE)) | |
6856 | return 19200; | |
6857 | ||
6858 | cdclk = 19200 * pll_ratio / 2; | |
6859 | ||
6860 | switch (cdctl & BXT_CDCLK_CD2X_DIV_SEL_MASK) { | |
6861 | case BXT_CDCLK_CD2X_DIV_SEL_1: | |
6862 | return cdclk; /* 576MHz or 624MHz */ | |
6863 | case BXT_CDCLK_CD2X_DIV_SEL_1_5: | |
6864 | return cdclk * 2 / 3; /* 384MHz */ | |
6865 | case BXT_CDCLK_CD2X_DIV_SEL_2: | |
6866 | return cdclk / 2; /* 288MHz */ | |
6867 | case BXT_CDCLK_CD2X_DIV_SEL_4: | |
6868 | return cdclk / 4; /* 144MHz */ | |
6869 | } | |
6870 | ||
6871 | /* error case, do as if DE PLL isn't enabled */ | |
6872 | return 19200; | |
6873 | } | |
6874 | ||
1652d19e VS |
6875 | static int broadwell_get_display_clock_speed(struct drm_device *dev) |
6876 | { | |
6877 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6878 | uint32_t lcpll = I915_READ(LCPLL_CTL); | |
6879 | uint32_t freq = lcpll & LCPLL_CLK_FREQ_MASK; | |
6880 | ||
6881 | if (lcpll & LCPLL_CD_SOURCE_FCLK) | |
6882 | return 800000; | |
6883 | else if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) | |
6884 | return 450000; | |
6885 | else if (freq == LCPLL_CLK_FREQ_450) | |
6886 | return 450000; | |
6887 | else if (freq == LCPLL_CLK_FREQ_54O_BDW) | |
6888 | return 540000; | |
6889 | else if (freq == LCPLL_CLK_FREQ_337_5_BDW) | |
6890 | return 337500; | |
6891 | else | |
6892 | return 675000; | |
6893 | } | |
6894 | ||
6895 | static int haswell_get_display_clock_speed(struct drm_device *dev) | |
6896 | { | |
6897 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6898 | uint32_t lcpll = I915_READ(LCPLL_CTL); | |
6899 | uint32_t freq = lcpll & LCPLL_CLK_FREQ_MASK; | |
6900 | ||
6901 | if (lcpll & LCPLL_CD_SOURCE_FCLK) | |
6902 | return 800000; | |
6903 | else if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) | |
6904 | return 450000; | |
6905 | else if (freq == LCPLL_CLK_FREQ_450) | |
6906 | return 450000; | |
6907 | else if (IS_HSW_ULT(dev)) | |
6908 | return 337500; | |
6909 | else | |
6910 | return 540000; | |
79e53945 JB |
6911 | } |
6912 | ||
25eb05fc JB |
6913 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
6914 | { | |
bfa7df01 VS |
6915 | return vlv_get_cck_clock_hpll(to_i915(dev), "cdclk", |
6916 | CCK_DISPLAY_CLOCK_CONTROL); | |
25eb05fc JB |
6917 | } |
6918 | ||
b37a6434 VS |
6919 | static int ilk_get_display_clock_speed(struct drm_device *dev) |
6920 | { | |
6921 | return 450000; | |
6922 | } | |
6923 | ||
e70236a8 JB |
6924 | static int i945_get_display_clock_speed(struct drm_device *dev) |
6925 | { | |
6926 | return 400000; | |
6927 | } | |
79e53945 | 6928 | |
e70236a8 | 6929 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 6930 | { |
e907f170 | 6931 | return 333333; |
e70236a8 | 6932 | } |
79e53945 | 6933 | |
e70236a8 JB |
6934 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
6935 | { | |
6936 | return 200000; | |
6937 | } | |
79e53945 | 6938 | |
257a7ffc DV |
6939 | static int pnv_get_display_clock_speed(struct drm_device *dev) |
6940 | { | |
6941 | u16 gcfgc = 0; | |
6942 | ||
6943 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); | |
6944 | ||
6945 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
6946 | case GC_DISPLAY_CLOCK_267_MHZ_PNV: | |
e907f170 | 6947 | return 266667; |
257a7ffc | 6948 | case GC_DISPLAY_CLOCK_333_MHZ_PNV: |
e907f170 | 6949 | return 333333; |
257a7ffc | 6950 | case GC_DISPLAY_CLOCK_444_MHZ_PNV: |
e907f170 | 6951 | return 444444; |
257a7ffc DV |
6952 | case GC_DISPLAY_CLOCK_200_MHZ_PNV: |
6953 | return 200000; | |
6954 | default: | |
6955 | DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc); | |
6956 | case GC_DISPLAY_CLOCK_133_MHZ_PNV: | |
e907f170 | 6957 | return 133333; |
257a7ffc | 6958 | case GC_DISPLAY_CLOCK_167_MHZ_PNV: |
e907f170 | 6959 | return 166667; |
257a7ffc DV |
6960 | } |
6961 | } | |
6962 | ||
e70236a8 JB |
6963 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
6964 | { | |
6965 | u16 gcfgc = 0; | |
79e53945 | 6966 | |
e70236a8 JB |
6967 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
6968 | ||
6969 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
e907f170 | 6970 | return 133333; |
e70236a8 JB |
6971 | else { |
6972 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
6973 | case GC_DISPLAY_CLOCK_333_MHZ: | |
e907f170 | 6974 | return 333333; |
e70236a8 JB |
6975 | default: |
6976 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
6977 | return 190000; | |
79e53945 | 6978 | } |
e70236a8 JB |
6979 | } |
6980 | } | |
6981 | ||
6982 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
6983 | { | |
e907f170 | 6984 | return 266667; |
e70236a8 JB |
6985 | } |
6986 | ||
1b1d2716 | 6987 | static int i85x_get_display_clock_speed(struct drm_device *dev) |
e70236a8 JB |
6988 | { |
6989 | u16 hpllcc = 0; | |
1b1d2716 | 6990 | |
65cd2b3f VS |
6991 | /* |
6992 | * 852GM/852GMV only supports 133 MHz and the HPLLCC | |
6993 | * encoding is different :( | |
6994 | * FIXME is this the right way to detect 852GM/852GMV? | |
6995 | */ | |
6996 | if (dev->pdev->revision == 0x1) | |
6997 | return 133333; | |
6998 | ||
1b1d2716 VS |
6999 | pci_bus_read_config_word(dev->pdev->bus, |
7000 | PCI_DEVFN(0, 3), HPLLCC, &hpllcc); | |
7001 | ||
e70236a8 JB |
7002 | /* Assume that the hardware is in the high speed state. This |
7003 | * should be the default. | |
7004 | */ | |
7005 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
7006 | case GC_CLOCK_133_200: | |
1b1d2716 | 7007 | case GC_CLOCK_133_200_2: |
e70236a8 JB |
7008 | case GC_CLOCK_100_200: |
7009 | return 200000; | |
7010 | case GC_CLOCK_166_250: | |
7011 | return 250000; | |
7012 | case GC_CLOCK_100_133: | |
e907f170 | 7013 | return 133333; |
1b1d2716 VS |
7014 | case GC_CLOCK_133_266: |
7015 | case GC_CLOCK_133_266_2: | |
7016 | case GC_CLOCK_166_266: | |
7017 | return 266667; | |
e70236a8 | 7018 | } |
79e53945 | 7019 | |
e70236a8 JB |
7020 | /* Shouldn't happen */ |
7021 | return 0; | |
7022 | } | |
79e53945 | 7023 | |
e70236a8 JB |
7024 | static int i830_get_display_clock_speed(struct drm_device *dev) |
7025 | { | |
e907f170 | 7026 | return 133333; |
79e53945 JB |
7027 | } |
7028 | ||
34edce2f VS |
7029 | static unsigned int intel_hpll_vco(struct drm_device *dev) |
7030 | { | |
7031 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7032 | static const unsigned int blb_vco[8] = { | |
7033 | [0] = 3200000, | |
7034 | [1] = 4000000, | |
7035 | [2] = 5333333, | |
7036 | [3] = 4800000, | |
7037 | [4] = 6400000, | |
7038 | }; | |
7039 | static const unsigned int pnv_vco[8] = { | |
7040 | [0] = 3200000, | |
7041 | [1] = 4000000, | |
7042 | [2] = 5333333, | |
7043 | [3] = 4800000, | |
7044 | [4] = 2666667, | |
7045 | }; | |
7046 | static const unsigned int cl_vco[8] = { | |
7047 | [0] = 3200000, | |
7048 | [1] = 4000000, | |
7049 | [2] = 5333333, | |
7050 | [3] = 6400000, | |
7051 | [4] = 3333333, | |
7052 | [5] = 3566667, | |
7053 | [6] = 4266667, | |
7054 | }; | |
7055 | static const unsigned int elk_vco[8] = { | |
7056 | [0] = 3200000, | |
7057 | [1] = 4000000, | |
7058 | [2] = 5333333, | |
7059 | [3] = 4800000, | |
7060 | }; | |
7061 | static const unsigned int ctg_vco[8] = { | |
7062 | [0] = 3200000, | |
7063 | [1] = 4000000, | |
7064 | [2] = 5333333, | |
7065 | [3] = 6400000, | |
7066 | [4] = 2666667, | |
7067 | [5] = 4266667, | |
7068 | }; | |
7069 | const unsigned int *vco_table; | |
7070 | unsigned int vco; | |
7071 | uint8_t tmp = 0; | |
7072 | ||
7073 | /* FIXME other chipsets? */ | |
7074 | if (IS_GM45(dev)) | |
7075 | vco_table = ctg_vco; | |
7076 | else if (IS_G4X(dev)) | |
7077 | vco_table = elk_vco; | |
7078 | else if (IS_CRESTLINE(dev)) | |
7079 | vco_table = cl_vco; | |
7080 | else if (IS_PINEVIEW(dev)) | |
7081 | vco_table = pnv_vco; | |
7082 | else if (IS_G33(dev)) | |
7083 | vco_table = blb_vco; | |
7084 | else | |
7085 | return 0; | |
7086 | ||
7087 | tmp = I915_READ(IS_MOBILE(dev) ? HPLLVCO_MOBILE : HPLLVCO); | |
7088 | ||
7089 | vco = vco_table[tmp & 0x7]; | |
7090 | if (vco == 0) | |
7091 | DRM_ERROR("Bad HPLL VCO (HPLLVCO=0x%02x)\n", tmp); | |
7092 | else | |
7093 | DRM_DEBUG_KMS("HPLL VCO %u kHz\n", vco); | |
7094 | ||
7095 | return vco; | |
7096 | } | |
7097 | ||
7098 | static int gm45_get_display_clock_speed(struct drm_device *dev) | |
7099 | { | |
7100 | unsigned int cdclk_sel, vco = intel_hpll_vco(dev); | |
7101 | uint16_t tmp = 0; | |
7102 | ||
7103 | pci_read_config_word(dev->pdev, GCFGC, &tmp); | |
7104 | ||
7105 | cdclk_sel = (tmp >> 12) & 0x1; | |
7106 | ||
7107 | switch (vco) { | |
7108 | case 2666667: | |
7109 | case 4000000: | |
7110 | case 5333333: | |
7111 | return cdclk_sel ? 333333 : 222222; | |
7112 | case 3200000: | |
7113 | return cdclk_sel ? 320000 : 228571; | |
7114 | default: | |
7115 | DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u, CFGC=0x%04x\n", vco, tmp); | |
7116 | return 222222; | |
7117 | } | |
7118 | } | |
7119 | ||
7120 | static int i965gm_get_display_clock_speed(struct drm_device *dev) | |
7121 | { | |
7122 | static const uint8_t div_3200[] = { 16, 10, 8 }; | |
7123 | static const uint8_t div_4000[] = { 20, 12, 10 }; | |
7124 | static const uint8_t div_5333[] = { 24, 16, 14 }; | |
7125 | const uint8_t *div_table; | |
7126 | unsigned int cdclk_sel, vco = intel_hpll_vco(dev); | |
7127 | uint16_t tmp = 0; | |
7128 | ||
7129 | pci_read_config_word(dev->pdev, GCFGC, &tmp); | |
7130 | ||
7131 | cdclk_sel = ((tmp >> 8) & 0x1f) - 1; | |
7132 | ||
7133 | if (cdclk_sel >= ARRAY_SIZE(div_3200)) | |
7134 | goto fail; | |
7135 | ||
7136 | switch (vco) { | |
7137 | case 3200000: | |
7138 | div_table = div_3200; | |
7139 | break; | |
7140 | case 4000000: | |
7141 | div_table = div_4000; | |
7142 | break; | |
7143 | case 5333333: | |
7144 | div_table = div_5333; | |
7145 | break; | |
7146 | default: | |
7147 | goto fail; | |
7148 | } | |
7149 | ||
7150 | return DIV_ROUND_CLOSEST(vco, div_table[cdclk_sel]); | |
7151 | ||
caf4e252 | 7152 | fail: |
34edce2f VS |
7153 | DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u kHz, CFGC=0x%04x\n", vco, tmp); |
7154 | return 200000; | |
7155 | } | |
7156 | ||
7157 | static int g33_get_display_clock_speed(struct drm_device *dev) | |
7158 | { | |
7159 | static const uint8_t div_3200[] = { 12, 10, 8, 7, 5, 16 }; | |
7160 | static const uint8_t div_4000[] = { 14, 12, 10, 8, 6, 20 }; | |
7161 | static const uint8_t div_4800[] = { 20, 14, 12, 10, 8, 24 }; | |
7162 | static const uint8_t div_5333[] = { 20, 16, 12, 12, 8, 28 }; | |
7163 | const uint8_t *div_table; | |
7164 | unsigned int cdclk_sel, vco = intel_hpll_vco(dev); | |
7165 | uint16_t tmp = 0; | |
7166 | ||
7167 | pci_read_config_word(dev->pdev, GCFGC, &tmp); | |
7168 | ||
7169 | cdclk_sel = (tmp >> 4) & 0x7; | |
7170 | ||
7171 | if (cdclk_sel >= ARRAY_SIZE(div_3200)) | |
7172 | goto fail; | |
7173 | ||
7174 | switch (vco) { | |
7175 | case 3200000: | |
7176 | div_table = div_3200; | |
7177 | break; | |
7178 | case 4000000: | |
7179 | div_table = div_4000; | |
7180 | break; | |
7181 | case 4800000: | |
7182 | div_table = div_4800; | |
7183 | break; | |
7184 | case 5333333: | |
7185 | div_table = div_5333; | |
7186 | break; | |
7187 | default: | |
7188 | goto fail; | |
7189 | } | |
7190 | ||
7191 | return DIV_ROUND_CLOSEST(vco, div_table[cdclk_sel]); | |
7192 | ||
caf4e252 | 7193 | fail: |
34edce2f VS |
7194 | DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u kHz, CFGC=0x%08x\n", vco, tmp); |
7195 | return 190476; | |
7196 | } | |
7197 | ||
2c07245f | 7198 | static void |
a65851af | 7199 | intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den) |
2c07245f | 7200 | { |
a65851af VS |
7201 | while (*num > DATA_LINK_M_N_MASK || |
7202 | *den > DATA_LINK_M_N_MASK) { | |
2c07245f ZW |
7203 | *num >>= 1; |
7204 | *den >>= 1; | |
7205 | } | |
7206 | } | |
7207 | ||
a65851af VS |
7208 | static void compute_m_n(unsigned int m, unsigned int n, |
7209 | uint32_t *ret_m, uint32_t *ret_n) | |
7210 | { | |
7211 | *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX); | |
7212 | *ret_m = div_u64((uint64_t) m * *ret_n, n); | |
7213 | intel_reduce_m_n_ratio(ret_m, ret_n); | |
7214 | } | |
7215 | ||
e69d0bc1 DV |
7216 | void |
7217 | intel_link_compute_m_n(int bits_per_pixel, int nlanes, | |
7218 | int pixel_clock, int link_clock, | |
7219 | struct intel_link_m_n *m_n) | |
2c07245f | 7220 | { |
e69d0bc1 | 7221 | m_n->tu = 64; |
a65851af VS |
7222 | |
7223 | compute_m_n(bits_per_pixel * pixel_clock, | |
7224 | link_clock * nlanes * 8, | |
7225 | &m_n->gmch_m, &m_n->gmch_n); | |
7226 | ||
7227 | compute_m_n(pixel_clock, link_clock, | |
7228 | &m_n->link_m, &m_n->link_n); | |
2c07245f ZW |
7229 | } |
7230 | ||
a7615030 CW |
7231 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
7232 | { | |
d330a953 JN |
7233 | if (i915.panel_use_ssc >= 0) |
7234 | return i915.panel_use_ssc != 0; | |
41aa3448 | 7235 | return dev_priv->vbt.lvds_use_ssc |
435793df | 7236 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
7237 | } |
7238 | ||
a93e255f ACO |
7239 | static int i9xx_get_refclk(const struct intel_crtc_state *crtc_state, |
7240 | int num_connectors) | |
c65d77d8 | 7241 | { |
a93e255f | 7242 | struct drm_device *dev = crtc_state->base.crtc->dev; |
c65d77d8 JB |
7243 | struct drm_i915_private *dev_priv = dev->dev_private; |
7244 | int refclk; | |
7245 | ||
a93e255f ACO |
7246 | WARN_ON(!crtc_state->base.state); |
7247 | ||
666a4537 | 7248 | if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev) || IS_BROXTON(dev)) { |
9a0ea498 | 7249 | refclk = 100000; |
a93e255f | 7250 | } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
c65d77d8 | 7251 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
e91e941b VS |
7252 | refclk = dev_priv->vbt.lvds_ssc_freq; |
7253 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk); | |
c65d77d8 JB |
7254 | } else if (!IS_GEN2(dev)) { |
7255 | refclk = 96000; | |
7256 | } else { | |
7257 | refclk = 48000; | |
7258 | } | |
7259 | ||
7260 | return refclk; | |
7261 | } | |
7262 | ||
7429e9d4 | 7263 | static uint32_t pnv_dpll_compute_fp(struct dpll *dpll) |
c65d77d8 | 7264 | { |
7df00d7a | 7265 | return (1 << dpll->n) << 16 | dpll->m2; |
7429e9d4 | 7266 | } |
f47709a9 | 7267 | |
7429e9d4 DV |
7268 | static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll) |
7269 | { | |
7270 | return dpll->n << 16 | dpll->m1 << 8 | dpll->m2; | |
c65d77d8 JB |
7271 | } |
7272 | ||
f47709a9 | 7273 | static void i9xx_update_pll_dividers(struct intel_crtc *crtc, |
190f68c5 | 7274 | struct intel_crtc_state *crtc_state, |
a7516a05 JB |
7275 | intel_clock_t *reduced_clock) |
7276 | { | |
f47709a9 | 7277 | struct drm_device *dev = crtc->base.dev; |
a7516a05 JB |
7278 | u32 fp, fp2 = 0; |
7279 | ||
7280 | if (IS_PINEVIEW(dev)) { | |
190f68c5 | 7281 | fp = pnv_dpll_compute_fp(&crtc_state->dpll); |
a7516a05 | 7282 | if (reduced_clock) |
7429e9d4 | 7283 | fp2 = pnv_dpll_compute_fp(reduced_clock); |
a7516a05 | 7284 | } else { |
190f68c5 | 7285 | fp = i9xx_dpll_compute_fp(&crtc_state->dpll); |
a7516a05 | 7286 | if (reduced_clock) |
7429e9d4 | 7287 | fp2 = i9xx_dpll_compute_fp(reduced_clock); |
a7516a05 JB |
7288 | } |
7289 | ||
190f68c5 | 7290 | crtc_state->dpll_hw_state.fp0 = fp; |
a7516a05 | 7291 | |
f47709a9 | 7292 | crtc->lowfreq_avail = false; |
a93e255f | 7293 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
ab585dea | 7294 | reduced_clock) { |
190f68c5 | 7295 | crtc_state->dpll_hw_state.fp1 = fp2; |
f47709a9 | 7296 | crtc->lowfreq_avail = true; |
a7516a05 | 7297 | } else { |
190f68c5 | 7298 | crtc_state->dpll_hw_state.fp1 = fp; |
a7516a05 JB |
7299 | } |
7300 | } | |
7301 | ||
5e69f97f CML |
7302 | static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe |
7303 | pipe) | |
89b667f8 JB |
7304 | { |
7305 | u32 reg_val; | |
7306 | ||
7307 | /* | |
7308 | * PLLB opamp always calibrates to max value of 0x3f, force enable it | |
7309 | * and set it to a reasonable value instead. | |
7310 | */ | |
ab3c759a | 7311 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1)); |
89b667f8 JB |
7312 | reg_val &= 0xffffff00; |
7313 | reg_val |= 0x00000030; | |
ab3c759a | 7314 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); |
89b667f8 | 7315 | |
ab3c759a | 7316 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); |
89b667f8 JB |
7317 | reg_val &= 0x8cffffff; |
7318 | reg_val = 0x8c000000; | |
ab3c759a | 7319 | vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); |
89b667f8 | 7320 | |
ab3c759a | 7321 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1)); |
89b667f8 | 7322 | reg_val &= 0xffffff00; |
ab3c759a | 7323 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); |
89b667f8 | 7324 | |
ab3c759a | 7325 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); |
89b667f8 JB |
7326 | reg_val &= 0x00ffffff; |
7327 | reg_val |= 0xb0000000; | |
ab3c759a | 7328 | vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); |
89b667f8 JB |
7329 | } |
7330 | ||
b551842d DV |
7331 | static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc, |
7332 | struct intel_link_m_n *m_n) | |
7333 | { | |
7334 | struct drm_device *dev = crtc->base.dev; | |
7335 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7336 | int pipe = crtc->pipe; | |
7337 | ||
e3b95f1e DV |
7338 | I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
7339 | I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n); | |
7340 | I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m); | |
7341 | I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n); | |
b551842d DV |
7342 | } |
7343 | ||
7344 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, | |
f769cd24 VK |
7345 | struct intel_link_m_n *m_n, |
7346 | struct intel_link_m_n *m2_n2) | |
b551842d DV |
7347 | { |
7348 | struct drm_device *dev = crtc->base.dev; | |
7349 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7350 | int pipe = crtc->pipe; | |
6e3c9717 | 7351 | enum transcoder transcoder = crtc->config->cpu_transcoder; |
b551842d DV |
7352 | |
7353 | if (INTEL_INFO(dev)->gen >= 5) { | |
7354 | I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m); | |
7355 | I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n); | |
7356 | I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m); | |
7357 | I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n); | |
f769cd24 VK |
7358 | /* M2_N2 registers to be set only for gen < 8 (M2_N2 available |
7359 | * for gen < 8) and if DRRS is supported (to make sure the | |
7360 | * registers are not unnecessarily accessed). | |
7361 | */ | |
44395bfe | 7362 | if (m2_n2 && (IS_CHERRYVIEW(dev) || INTEL_INFO(dev)->gen < 8) && |
6e3c9717 | 7363 | crtc->config->has_drrs) { |
f769cd24 VK |
7364 | I915_WRITE(PIPE_DATA_M2(transcoder), |
7365 | TU_SIZE(m2_n2->tu) | m2_n2->gmch_m); | |
7366 | I915_WRITE(PIPE_DATA_N2(transcoder), m2_n2->gmch_n); | |
7367 | I915_WRITE(PIPE_LINK_M2(transcoder), m2_n2->link_m); | |
7368 | I915_WRITE(PIPE_LINK_N2(transcoder), m2_n2->link_n); | |
7369 | } | |
b551842d | 7370 | } else { |
e3b95f1e DV |
7371 | I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
7372 | I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n); | |
7373 | I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m); | |
7374 | I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n); | |
b551842d DV |
7375 | } |
7376 | } | |
7377 | ||
fe3cd48d | 7378 | void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n) |
03afc4a2 | 7379 | { |
fe3cd48d R |
7380 | struct intel_link_m_n *dp_m_n, *dp_m2_n2 = NULL; |
7381 | ||
7382 | if (m_n == M1_N1) { | |
7383 | dp_m_n = &crtc->config->dp_m_n; | |
7384 | dp_m2_n2 = &crtc->config->dp_m2_n2; | |
7385 | } else if (m_n == M2_N2) { | |
7386 | ||
7387 | /* | |
7388 | * M2_N2 registers are not supported. Hence m2_n2 divider value | |
7389 | * needs to be programmed into M1_N1. | |
7390 | */ | |
7391 | dp_m_n = &crtc->config->dp_m2_n2; | |
7392 | } else { | |
7393 | DRM_ERROR("Unsupported divider value\n"); | |
7394 | return; | |
7395 | } | |
7396 | ||
6e3c9717 ACO |
7397 | if (crtc->config->has_pch_encoder) |
7398 | intel_pch_transcoder_set_m_n(crtc, &crtc->config->dp_m_n); | |
03afc4a2 | 7399 | else |
fe3cd48d | 7400 | intel_cpu_transcoder_set_m_n(crtc, dp_m_n, dp_m2_n2); |
03afc4a2 DV |
7401 | } |
7402 | ||
251ac862 DV |
7403 | static void vlv_compute_dpll(struct intel_crtc *crtc, |
7404 | struct intel_crtc_state *pipe_config) | |
bdd4b6a6 DV |
7405 | { |
7406 | u32 dpll, dpll_md; | |
7407 | ||
7408 | /* | |
7409 | * Enable DPIO clock input. We should never disable the reference | |
7410 | * clock for pipe B, since VGA hotplug / manual detection depends | |
7411 | * on it. | |
7412 | */ | |
60bfe44f VS |
7413 | dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REF_CLK_ENABLE_VLV | |
7414 | DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_REF_CLK_VLV; | |
bdd4b6a6 DV |
7415 | /* We should never disable this, set it here for state tracking */ |
7416 | if (crtc->pipe == PIPE_B) | |
7417 | dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
7418 | dpll |= DPLL_VCO_ENABLE; | |
d288f65f | 7419 | pipe_config->dpll_hw_state.dpll = dpll; |
bdd4b6a6 | 7420 | |
d288f65f | 7421 | dpll_md = (pipe_config->pixel_multiplier - 1) |
bdd4b6a6 | 7422 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
d288f65f | 7423 | pipe_config->dpll_hw_state.dpll_md = dpll_md; |
bdd4b6a6 DV |
7424 | } |
7425 | ||
d288f65f | 7426 | static void vlv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 7427 | const struct intel_crtc_state *pipe_config) |
a0c4da24 | 7428 | { |
f47709a9 | 7429 | struct drm_device *dev = crtc->base.dev; |
a0c4da24 | 7430 | struct drm_i915_private *dev_priv = dev->dev_private; |
f47709a9 | 7431 | int pipe = crtc->pipe; |
bdd4b6a6 | 7432 | u32 mdiv; |
a0c4da24 | 7433 | u32 bestn, bestm1, bestm2, bestp1, bestp2; |
bdd4b6a6 | 7434 | u32 coreclk, reg_val; |
a0c4da24 | 7435 | |
a580516d | 7436 | mutex_lock(&dev_priv->sb_lock); |
09153000 | 7437 | |
d288f65f VS |
7438 | bestn = pipe_config->dpll.n; |
7439 | bestm1 = pipe_config->dpll.m1; | |
7440 | bestm2 = pipe_config->dpll.m2; | |
7441 | bestp1 = pipe_config->dpll.p1; | |
7442 | bestp2 = pipe_config->dpll.p2; | |
a0c4da24 | 7443 | |
89b667f8 JB |
7444 | /* See eDP HDMI DPIO driver vbios notes doc */ |
7445 | ||
7446 | /* PLL B needs special handling */ | |
bdd4b6a6 | 7447 | if (pipe == PIPE_B) |
5e69f97f | 7448 | vlv_pllb_recal_opamp(dev_priv, pipe); |
89b667f8 JB |
7449 | |
7450 | /* Set up Tx target for periodic Rcomp update */ | |
ab3c759a | 7451 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f); |
89b667f8 JB |
7452 | |
7453 | /* Disable target IRef on PLL */ | |
ab3c759a | 7454 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe)); |
89b667f8 | 7455 | reg_val &= 0x00ffffff; |
ab3c759a | 7456 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val); |
89b667f8 JB |
7457 | |
7458 | /* Disable fast lock */ | |
ab3c759a | 7459 | vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610); |
89b667f8 JB |
7460 | |
7461 | /* Set idtafcrecal before PLL is enabled */ | |
a0c4da24 JB |
7462 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); |
7463 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
7464 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
a0c4da24 | 7465 | mdiv |= (1 << DPIO_K_SHIFT); |
7df5080b JB |
7466 | |
7467 | /* | |
7468 | * Post divider depends on pixel clock rate, DAC vs digital (and LVDS, | |
7469 | * but we don't support that). | |
7470 | * Note: don't use the DAC post divider as it seems unstable. | |
7471 | */ | |
7472 | mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT); | |
ab3c759a | 7473 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv); |
a0c4da24 | 7474 | |
a0c4da24 | 7475 | mdiv |= DPIO_ENABLE_CALIBRATION; |
ab3c759a | 7476 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv); |
a0c4da24 | 7477 | |
89b667f8 | 7478 | /* Set HBR and RBR LPF coefficients */ |
d288f65f | 7479 | if (pipe_config->port_clock == 162000 || |
409ee761 ACO |
7480 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG) || |
7481 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
ab3c759a | 7482 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe), |
885b0120 | 7483 | 0x009f0003); |
89b667f8 | 7484 | else |
ab3c759a | 7485 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe), |
89b667f8 JB |
7486 | 0x00d0000f); |
7487 | ||
681a8504 | 7488 | if (pipe_config->has_dp_encoder) { |
89b667f8 | 7489 | /* Use SSC source */ |
bdd4b6a6 | 7490 | if (pipe == PIPE_A) |
ab3c759a | 7491 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7492 | 0x0df40000); |
7493 | else | |
ab3c759a | 7494 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7495 | 0x0df70000); |
7496 | } else { /* HDMI or VGA */ | |
7497 | /* Use bend source */ | |
bdd4b6a6 | 7498 | if (pipe == PIPE_A) |
ab3c759a | 7499 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7500 | 0x0df70000); |
7501 | else | |
ab3c759a | 7502 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7503 | 0x0df40000); |
7504 | } | |
a0c4da24 | 7505 | |
ab3c759a | 7506 | coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe)); |
89b667f8 | 7507 | coreclk = (coreclk & 0x0000ff00) | 0x01c00000; |
409ee761 ACO |
7508 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
7509 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) | |
89b667f8 | 7510 | coreclk |= 0x01000000; |
ab3c759a | 7511 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk); |
a0c4da24 | 7512 | |
ab3c759a | 7513 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000); |
a580516d | 7514 | mutex_unlock(&dev_priv->sb_lock); |
a0c4da24 JB |
7515 | } |
7516 | ||
251ac862 DV |
7517 | static void chv_compute_dpll(struct intel_crtc *crtc, |
7518 | struct intel_crtc_state *pipe_config) | |
1ae0d137 | 7519 | { |
60bfe44f VS |
7520 | pipe_config->dpll_hw_state.dpll = DPLL_SSC_REF_CLK_CHV | |
7521 | DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS | | |
1ae0d137 VS |
7522 | DPLL_VCO_ENABLE; |
7523 | if (crtc->pipe != PIPE_A) | |
d288f65f | 7524 | pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; |
1ae0d137 | 7525 | |
d288f65f VS |
7526 | pipe_config->dpll_hw_state.dpll_md = |
7527 | (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
1ae0d137 VS |
7528 | } |
7529 | ||
d288f65f | 7530 | static void chv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 7531 | const struct intel_crtc_state *pipe_config) |
9d556c99 CML |
7532 | { |
7533 | struct drm_device *dev = crtc->base.dev; | |
7534 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7535 | int pipe = crtc->pipe; | |
f0f59a00 | 7536 | i915_reg_t dpll_reg = DPLL(crtc->pipe); |
9d556c99 | 7537 | enum dpio_channel port = vlv_pipe_to_channel(pipe); |
9cbe40c1 | 7538 | u32 loopfilter, tribuf_calcntr; |
9d556c99 | 7539 | u32 bestn, bestm1, bestm2, bestp1, bestp2, bestm2_frac; |
a945ce7e | 7540 | u32 dpio_val; |
9cbe40c1 | 7541 | int vco; |
9d556c99 | 7542 | |
d288f65f VS |
7543 | bestn = pipe_config->dpll.n; |
7544 | bestm2_frac = pipe_config->dpll.m2 & 0x3fffff; | |
7545 | bestm1 = pipe_config->dpll.m1; | |
7546 | bestm2 = pipe_config->dpll.m2 >> 22; | |
7547 | bestp1 = pipe_config->dpll.p1; | |
7548 | bestp2 = pipe_config->dpll.p2; | |
9cbe40c1 | 7549 | vco = pipe_config->dpll.vco; |
a945ce7e | 7550 | dpio_val = 0; |
9cbe40c1 | 7551 | loopfilter = 0; |
9d556c99 CML |
7552 | |
7553 | /* | |
7554 | * Enable Refclk and SSC | |
7555 | */ | |
a11b0703 | 7556 | I915_WRITE(dpll_reg, |
d288f65f | 7557 | pipe_config->dpll_hw_state.dpll & ~DPLL_VCO_ENABLE); |
a11b0703 | 7558 | |
a580516d | 7559 | mutex_lock(&dev_priv->sb_lock); |
9d556c99 | 7560 | |
9d556c99 CML |
7561 | /* p1 and p2 divider */ |
7562 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW13(port), | |
7563 | 5 << DPIO_CHV_S1_DIV_SHIFT | | |
7564 | bestp1 << DPIO_CHV_P1_DIV_SHIFT | | |
7565 | bestp2 << DPIO_CHV_P2_DIV_SHIFT | | |
7566 | 1 << DPIO_CHV_K_DIV_SHIFT); | |
7567 | ||
7568 | /* Feedback post-divider - m2 */ | |
7569 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW0(port), bestm2); | |
7570 | ||
7571 | /* Feedback refclk divider - n and m1 */ | |
7572 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW1(port), | |
7573 | DPIO_CHV_M1_DIV_BY_2 | | |
7574 | 1 << DPIO_CHV_N_DIV_SHIFT); | |
7575 | ||
7576 | /* M2 fraction division */ | |
25a25dfc | 7577 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW2(port), bestm2_frac); |
9d556c99 CML |
7578 | |
7579 | /* M2 fraction division enable */ | |
a945ce7e VP |
7580 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port)); |
7581 | dpio_val &= ~(DPIO_CHV_FEEDFWD_GAIN_MASK | DPIO_CHV_FRAC_DIV_EN); | |
7582 | dpio_val |= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT); | |
7583 | if (bestm2_frac) | |
7584 | dpio_val |= DPIO_CHV_FRAC_DIV_EN; | |
7585 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW3(port), dpio_val); | |
9d556c99 | 7586 | |
de3a0fde VP |
7587 | /* Program digital lock detect threshold */ |
7588 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW9(port)); | |
7589 | dpio_val &= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK | | |
7590 | DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE); | |
7591 | dpio_val |= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT); | |
7592 | if (!bestm2_frac) | |
7593 | dpio_val |= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE; | |
7594 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW9(port), dpio_val); | |
7595 | ||
9d556c99 | 7596 | /* Loop filter */ |
9cbe40c1 VP |
7597 | if (vco == 5400000) { |
7598 | loopfilter |= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7599 | loopfilter |= (0x8 << DPIO_CHV_INT_COEFF_SHIFT); | |
7600 | loopfilter |= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7601 | tribuf_calcntr = 0x9; | |
7602 | } else if (vco <= 6200000) { | |
7603 | loopfilter |= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7604 | loopfilter |= (0xB << DPIO_CHV_INT_COEFF_SHIFT); | |
7605 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7606 | tribuf_calcntr = 0x9; | |
7607 | } else if (vco <= 6480000) { | |
7608 | loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7609 | loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT); | |
7610 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7611 | tribuf_calcntr = 0x8; | |
7612 | } else { | |
7613 | /* Not supported. Apply the same limits as in the max case */ | |
7614 | loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7615 | loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT); | |
7616 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7617 | tribuf_calcntr = 0; | |
7618 | } | |
9d556c99 CML |
7619 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW6(port), loopfilter); |
7620 | ||
968040b2 | 7621 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW8(port)); |
9cbe40c1 VP |
7622 | dpio_val &= ~DPIO_CHV_TDC_TARGET_CNT_MASK; |
7623 | dpio_val |= (tribuf_calcntr << DPIO_CHV_TDC_TARGET_CNT_SHIFT); | |
7624 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW8(port), dpio_val); | |
7625 | ||
9d556c99 CML |
7626 | /* AFC Recal */ |
7627 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), | |
7628 | vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)) | | |
7629 | DPIO_AFC_RECAL); | |
7630 | ||
a580516d | 7631 | mutex_unlock(&dev_priv->sb_lock); |
9d556c99 CML |
7632 | } |
7633 | ||
d288f65f VS |
7634 | /** |
7635 | * vlv_force_pll_on - forcibly enable just the PLL | |
7636 | * @dev_priv: i915 private structure | |
7637 | * @pipe: pipe PLL to enable | |
7638 | * @dpll: PLL configuration | |
7639 | * | |
7640 | * Enable the PLL for @pipe using the supplied @dpll config. To be used | |
7641 | * in cases where we need the PLL enabled even when @pipe is not going to | |
7642 | * be enabled. | |
7643 | */ | |
7644 | void vlv_force_pll_on(struct drm_device *dev, enum pipe pipe, | |
7645 | const struct dpll *dpll) | |
7646 | { | |
7647 | struct intel_crtc *crtc = | |
7648 | to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe)); | |
5cec258b | 7649 | struct intel_crtc_state pipe_config = { |
a93e255f | 7650 | .base.crtc = &crtc->base, |
d288f65f VS |
7651 | .pixel_multiplier = 1, |
7652 | .dpll = *dpll, | |
7653 | }; | |
7654 | ||
7655 | if (IS_CHERRYVIEW(dev)) { | |
251ac862 | 7656 | chv_compute_dpll(crtc, &pipe_config); |
d288f65f VS |
7657 | chv_prepare_pll(crtc, &pipe_config); |
7658 | chv_enable_pll(crtc, &pipe_config); | |
7659 | } else { | |
251ac862 | 7660 | vlv_compute_dpll(crtc, &pipe_config); |
d288f65f VS |
7661 | vlv_prepare_pll(crtc, &pipe_config); |
7662 | vlv_enable_pll(crtc, &pipe_config); | |
7663 | } | |
7664 | } | |
7665 | ||
7666 | /** | |
7667 | * vlv_force_pll_off - forcibly disable just the PLL | |
7668 | * @dev_priv: i915 private structure | |
7669 | * @pipe: pipe PLL to disable | |
7670 | * | |
7671 | * Disable the PLL for @pipe. To be used in cases where we need | |
7672 | * the PLL enabled even when @pipe is not going to be enabled. | |
7673 | */ | |
7674 | void vlv_force_pll_off(struct drm_device *dev, enum pipe pipe) | |
7675 | { | |
7676 | if (IS_CHERRYVIEW(dev)) | |
7677 | chv_disable_pll(to_i915(dev), pipe); | |
7678 | else | |
7679 | vlv_disable_pll(to_i915(dev), pipe); | |
7680 | } | |
7681 | ||
251ac862 DV |
7682 | static void i9xx_compute_dpll(struct intel_crtc *crtc, |
7683 | struct intel_crtc_state *crtc_state, | |
7684 | intel_clock_t *reduced_clock, | |
7685 | int num_connectors) | |
eb1cbe48 | 7686 | { |
f47709a9 | 7687 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 7688 | struct drm_i915_private *dev_priv = dev->dev_private; |
eb1cbe48 DV |
7689 | u32 dpll; |
7690 | bool is_sdvo; | |
190f68c5 | 7691 | struct dpll *clock = &crtc_state->dpll; |
eb1cbe48 | 7692 | |
190f68c5 | 7693 | i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock); |
2a8f64ca | 7694 | |
a93e255f ACO |
7695 | is_sdvo = intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_SDVO) || |
7696 | intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_HDMI); | |
eb1cbe48 DV |
7697 | |
7698 | dpll = DPLL_VGA_MODE_DIS; | |
7699 | ||
a93e255f | 7700 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) |
eb1cbe48 DV |
7701 | dpll |= DPLLB_MODE_LVDS; |
7702 | else | |
7703 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
6cc5f341 | 7704 | |
ef1b460d | 7705 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
190f68c5 | 7706 | dpll |= (crtc_state->pixel_multiplier - 1) |
198a037f | 7707 | << SDVO_MULTIPLIER_SHIFT_HIRES; |
eb1cbe48 | 7708 | } |
198a037f DV |
7709 | |
7710 | if (is_sdvo) | |
4a33e48d | 7711 | dpll |= DPLL_SDVO_HIGH_SPEED; |
198a037f | 7712 | |
190f68c5 | 7713 | if (crtc_state->has_dp_encoder) |
4a33e48d | 7714 | dpll |= DPLL_SDVO_HIGH_SPEED; |
eb1cbe48 DV |
7715 | |
7716 | /* compute bitmask from p1 value */ | |
7717 | if (IS_PINEVIEW(dev)) | |
7718 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
7719 | else { | |
7720 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
7721 | if (IS_G4X(dev) && reduced_clock) | |
7722 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
7723 | } | |
7724 | switch (clock->p2) { | |
7725 | case 5: | |
7726 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
7727 | break; | |
7728 | case 7: | |
7729 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
7730 | break; | |
7731 | case 10: | |
7732 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
7733 | break; | |
7734 | case 14: | |
7735 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
7736 | break; | |
7737 | } | |
7738 | if (INTEL_INFO(dev)->gen >= 4) | |
7739 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
7740 | ||
190f68c5 | 7741 | if (crtc_state->sdvo_tv_clock) |
eb1cbe48 | 7742 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
a93e255f | 7743 | else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
7744 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
7745 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
7746 | else | |
7747 | dpll |= PLL_REF_INPUT_DREFCLK; | |
7748 | ||
7749 | dpll |= DPLL_VCO_ENABLE; | |
190f68c5 | 7750 | crtc_state->dpll_hw_state.dpll = dpll; |
8bcc2795 | 7751 | |
eb1cbe48 | 7752 | if (INTEL_INFO(dev)->gen >= 4) { |
190f68c5 | 7753 | u32 dpll_md = (crtc_state->pixel_multiplier - 1) |
ef1b460d | 7754 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
190f68c5 | 7755 | crtc_state->dpll_hw_state.dpll_md = dpll_md; |
eb1cbe48 DV |
7756 | } |
7757 | } | |
7758 | ||
251ac862 DV |
7759 | static void i8xx_compute_dpll(struct intel_crtc *crtc, |
7760 | struct intel_crtc_state *crtc_state, | |
7761 | intel_clock_t *reduced_clock, | |
7762 | int num_connectors) | |
eb1cbe48 | 7763 | { |
f47709a9 | 7764 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 7765 | struct drm_i915_private *dev_priv = dev->dev_private; |
eb1cbe48 | 7766 | u32 dpll; |
190f68c5 | 7767 | struct dpll *clock = &crtc_state->dpll; |
eb1cbe48 | 7768 | |
190f68c5 | 7769 | i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock); |
2a8f64ca | 7770 | |
eb1cbe48 DV |
7771 | dpll = DPLL_VGA_MODE_DIS; |
7772 | ||
a93e255f | 7773 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
eb1cbe48 DV |
7774 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
7775 | } else { | |
7776 | if (clock->p1 == 2) | |
7777 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
7778 | else | |
7779 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
7780 | if (clock->p2 == 4) | |
7781 | dpll |= PLL_P2_DIVIDE_BY_4; | |
7782 | } | |
7783 | ||
a93e255f | 7784 | if (!IS_I830(dev) && intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_DVO)) |
4a33e48d DV |
7785 | dpll |= DPLL_DVO_2X_MODE; |
7786 | ||
a93e255f | 7787 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
7788 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
7789 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
7790 | else | |
7791 | dpll |= PLL_REF_INPUT_DREFCLK; | |
7792 | ||
7793 | dpll |= DPLL_VCO_ENABLE; | |
190f68c5 | 7794 | crtc_state->dpll_hw_state.dpll = dpll; |
eb1cbe48 DV |
7795 | } |
7796 | ||
8a654f3b | 7797 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc) |
b0e77b9c PZ |
7798 | { |
7799 | struct drm_device *dev = intel_crtc->base.dev; | |
7800 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7801 | enum pipe pipe = intel_crtc->pipe; | |
6e3c9717 | 7802 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
7c5f93b0 | 7803 | const struct drm_display_mode *adjusted_mode = &intel_crtc->config->base.adjusted_mode; |
1caea6e9 VS |
7804 | uint32_t crtc_vtotal, crtc_vblank_end; |
7805 | int vsyncshift = 0; | |
4d8a62ea DV |
7806 | |
7807 | /* We need to be careful not to changed the adjusted mode, for otherwise | |
7808 | * the hw state checker will get angry at the mismatch. */ | |
7809 | crtc_vtotal = adjusted_mode->crtc_vtotal; | |
7810 | crtc_vblank_end = adjusted_mode->crtc_vblank_end; | |
b0e77b9c | 7811 | |
609aeaca | 7812 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
b0e77b9c | 7813 | /* the chip adds 2 halflines automatically */ |
4d8a62ea DV |
7814 | crtc_vtotal -= 1; |
7815 | crtc_vblank_end -= 1; | |
609aeaca | 7816 | |
409ee761 | 7817 | if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
609aeaca VS |
7818 | vsyncshift = (adjusted_mode->crtc_htotal - 1) / 2; |
7819 | else | |
7820 | vsyncshift = adjusted_mode->crtc_hsync_start - | |
7821 | adjusted_mode->crtc_htotal / 2; | |
1caea6e9 VS |
7822 | if (vsyncshift < 0) |
7823 | vsyncshift += adjusted_mode->crtc_htotal; | |
b0e77b9c PZ |
7824 | } |
7825 | ||
7826 | if (INTEL_INFO(dev)->gen > 3) | |
fe2b8f9d | 7827 | I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift); |
b0e77b9c | 7828 | |
fe2b8f9d | 7829 | I915_WRITE(HTOTAL(cpu_transcoder), |
b0e77b9c PZ |
7830 | (adjusted_mode->crtc_hdisplay - 1) | |
7831 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
fe2b8f9d | 7832 | I915_WRITE(HBLANK(cpu_transcoder), |
b0e77b9c PZ |
7833 | (adjusted_mode->crtc_hblank_start - 1) | |
7834 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
fe2b8f9d | 7835 | I915_WRITE(HSYNC(cpu_transcoder), |
b0e77b9c PZ |
7836 | (adjusted_mode->crtc_hsync_start - 1) | |
7837 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
7838 | ||
fe2b8f9d | 7839 | I915_WRITE(VTOTAL(cpu_transcoder), |
b0e77b9c | 7840 | (adjusted_mode->crtc_vdisplay - 1) | |
4d8a62ea | 7841 | ((crtc_vtotal - 1) << 16)); |
fe2b8f9d | 7842 | I915_WRITE(VBLANK(cpu_transcoder), |
b0e77b9c | 7843 | (adjusted_mode->crtc_vblank_start - 1) | |
4d8a62ea | 7844 | ((crtc_vblank_end - 1) << 16)); |
fe2b8f9d | 7845 | I915_WRITE(VSYNC(cpu_transcoder), |
b0e77b9c PZ |
7846 | (adjusted_mode->crtc_vsync_start - 1) | |
7847 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
7848 | ||
b5e508d4 PZ |
7849 | /* Workaround: when the EDP input selection is B, the VTOTAL_B must be |
7850 | * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is | |
7851 | * documented on the DDI_FUNC_CTL register description, EDP Input Select | |
7852 | * bits. */ | |
7853 | if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP && | |
7854 | (pipe == PIPE_B || pipe == PIPE_C)) | |
7855 | I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder))); | |
7856 | ||
b0e77b9c PZ |
7857 | /* pipesrc controls the size that is scaled from, which should |
7858 | * always be the user's requested size. | |
7859 | */ | |
7860 | I915_WRITE(PIPESRC(pipe), | |
6e3c9717 ACO |
7861 | ((intel_crtc->config->pipe_src_w - 1) << 16) | |
7862 | (intel_crtc->config->pipe_src_h - 1)); | |
b0e77b9c PZ |
7863 | } |
7864 | ||
1bd1bd80 | 7865 | static void intel_get_pipe_timings(struct intel_crtc *crtc, |
5cec258b | 7866 | struct intel_crtc_state *pipe_config) |
1bd1bd80 DV |
7867 | { |
7868 | struct drm_device *dev = crtc->base.dev; | |
7869 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7870 | enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; | |
7871 | uint32_t tmp; | |
7872 | ||
7873 | tmp = I915_READ(HTOTAL(cpu_transcoder)); | |
2d112de7 ACO |
7874 | pipe_config->base.adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1; |
7875 | pipe_config->base.adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7876 | tmp = I915_READ(HBLANK(cpu_transcoder)); |
2d112de7 ACO |
7877 | pipe_config->base.adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1; |
7878 | pipe_config->base.adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7879 | tmp = I915_READ(HSYNC(cpu_transcoder)); |
2d112de7 ACO |
7880 | pipe_config->base.adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1; |
7881 | pipe_config->base.adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 DV |
7882 | |
7883 | tmp = I915_READ(VTOTAL(cpu_transcoder)); | |
2d112de7 ACO |
7884 | pipe_config->base.adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1; |
7885 | pipe_config->base.adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7886 | tmp = I915_READ(VBLANK(cpu_transcoder)); |
2d112de7 ACO |
7887 | pipe_config->base.adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1; |
7888 | pipe_config->base.adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7889 | tmp = I915_READ(VSYNC(cpu_transcoder)); |
2d112de7 ACO |
7890 | pipe_config->base.adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1; |
7891 | pipe_config->base.adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 DV |
7892 | |
7893 | if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) { | |
2d112de7 ACO |
7894 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE; |
7895 | pipe_config->base.adjusted_mode.crtc_vtotal += 1; | |
7896 | pipe_config->base.adjusted_mode.crtc_vblank_end += 1; | |
1bd1bd80 DV |
7897 | } |
7898 | ||
7899 | tmp = I915_READ(PIPESRC(crtc->pipe)); | |
37327abd VS |
7900 | pipe_config->pipe_src_h = (tmp & 0xffff) + 1; |
7901 | pipe_config->pipe_src_w = ((tmp >> 16) & 0xffff) + 1; | |
7902 | ||
2d112de7 ACO |
7903 | pipe_config->base.mode.vdisplay = pipe_config->pipe_src_h; |
7904 | pipe_config->base.mode.hdisplay = pipe_config->pipe_src_w; | |
1bd1bd80 DV |
7905 | } |
7906 | ||
f6a83288 | 7907 | void intel_mode_from_pipe_config(struct drm_display_mode *mode, |
5cec258b | 7908 | struct intel_crtc_state *pipe_config) |
babea61d | 7909 | { |
2d112de7 ACO |
7910 | mode->hdisplay = pipe_config->base.adjusted_mode.crtc_hdisplay; |
7911 | mode->htotal = pipe_config->base.adjusted_mode.crtc_htotal; | |
7912 | mode->hsync_start = pipe_config->base.adjusted_mode.crtc_hsync_start; | |
7913 | mode->hsync_end = pipe_config->base.adjusted_mode.crtc_hsync_end; | |
babea61d | 7914 | |
2d112de7 ACO |
7915 | mode->vdisplay = pipe_config->base.adjusted_mode.crtc_vdisplay; |
7916 | mode->vtotal = pipe_config->base.adjusted_mode.crtc_vtotal; | |
7917 | mode->vsync_start = pipe_config->base.adjusted_mode.crtc_vsync_start; | |
7918 | mode->vsync_end = pipe_config->base.adjusted_mode.crtc_vsync_end; | |
babea61d | 7919 | |
2d112de7 | 7920 | mode->flags = pipe_config->base.adjusted_mode.flags; |
cd13f5ab | 7921 | mode->type = DRM_MODE_TYPE_DRIVER; |
babea61d | 7922 | |
2d112de7 ACO |
7923 | mode->clock = pipe_config->base.adjusted_mode.crtc_clock; |
7924 | mode->flags |= pipe_config->base.adjusted_mode.flags; | |
cd13f5ab ML |
7925 | |
7926 | mode->hsync = drm_mode_hsync(mode); | |
7927 | mode->vrefresh = drm_mode_vrefresh(mode); | |
7928 | drm_mode_set_name(mode); | |
babea61d JB |
7929 | } |
7930 | ||
84b046f3 DV |
7931 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc) |
7932 | { | |
7933 | struct drm_device *dev = intel_crtc->base.dev; | |
7934 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7935 | uint32_t pipeconf; | |
7936 | ||
9f11a9e4 | 7937 | pipeconf = 0; |
84b046f3 | 7938 | |
b6b5d049 VS |
7939 | if ((intel_crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
7940 | (intel_crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
7941 | pipeconf |= I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE; | |
67c72a12 | 7942 | |
6e3c9717 | 7943 | if (intel_crtc->config->double_wide) |
cf532bb2 | 7944 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
84b046f3 | 7945 | |
ff9ce46e | 7946 | /* only g4x and later have fancy bpc/dither controls */ |
666a4537 | 7947 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
ff9ce46e | 7948 | /* Bspec claims that we can't use dithering for 30bpp pipes. */ |
6e3c9717 | 7949 | if (intel_crtc->config->dither && intel_crtc->config->pipe_bpp != 30) |
ff9ce46e | 7950 | pipeconf |= PIPECONF_DITHER_EN | |
84b046f3 | 7951 | PIPECONF_DITHER_TYPE_SP; |
84b046f3 | 7952 | |
6e3c9717 | 7953 | switch (intel_crtc->config->pipe_bpp) { |
ff9ce46e DV |
7954 | case 18: |
7955 | pipeconf |= PIPECONF_6BPC; | |
7956 | break; | |
7957 | case 24: | |
7958 | pipeconf |= PIPECONF_8BPC; | |
7959 | break; | |
7960 | case 30: | |
7961 | pipeconf |= PIPECONF_10BPC; | |
7962 | break; | |
7963 | default: | |
7964 | /* Case prevented by intel_choose_pipe_bpp_dither. */ | |
7965 | BUG(); | |
84b046f3 DV |
7966 | } |
7967 | } | |
7968 | ||
7969 | if (HAS_PIPE_CXSR(dev)) { | |
7970 | if (intel_crtc->lowfreq_avail) { | |
7971 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); | |
7972 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; | |
7973 | } else { | |
7974 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); | |
84b046f3 DV |
7975 | } |
7976 | } | |
7977 | ||
6e3c9717 | 7978 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) { |
efc2cfff | 7979 | if (INTEL_INFO(dev)->gen < 4 || |
409ee761 | 7980 | intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
efc2cfff VS |
7981 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
7982 | else | |
7983 | pipeconf |= PIPECONF_INTERLACE_W_SYNC_SHIFT; | |
7984 | } else | |
84b046f3 DV |
7985 | pipeconf |= PIPECONF_PROGRESSIVE; |
7986 | ||
666a4537 WB |
7987 | if ((IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) && |
7988 | intel_crtc->config->limited_color_range) | |
9f11a9e4 | 7989 | pipeconf |= PIPECONF_COLOR_RANGE_SELECT; |
9c8e09b7 | 7990 | |
84b046f3 DV |
7991 | I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf); |
7992 | POSTING_READ(PIPECONF(intel_crtc->pipe)); | |
7993 | } | |
7994 | ||
190f68c5 ACO |
7995 | static int i9xx_crtc_compute_clock(struct intel_crtc *crtc, |
7996 | struct intel_crtc_state *crtc_state) | |
79e53945 | 7997 | { |
c7653199 | 7998 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 7999 | struct drm_i915_private *dev_priv = dev->dev_private; |
c751ce4f | 8000 | int refclk, num_connectors = 0; |
c329a4ec DV |
8001 | intel_clock_t clock; |
8002 | bool ok; | |
d4906093 | 8003 | const intel_limit_t *limit; |
55bb9992 | 8004 | struct drm_atomic_state *state = crtc_state->base.state; |
da3ced29 | 8005 | struct drm_connector *connector; |
55bb9992 ACO |
8006 | struct drm_connector_state *connector_state; |
8007 | int i; | |
79e53945 | 8008 | |
dd3cd74a ACO |
8009 | memset(&crtc_state->dpll_hw_state, 0, |
8010 | sizeof(crtc_state->dpll_hw_state)); | |
8011 | ||
a65347ba JN |
8012 | if (crtc_state->has_dsi_encoder) |
8013 | return 0; | |
43565a06 | 8014 | |
a65347ba JN |
8015 | for_each_connector_in_state(state, connector, connector_state, i) { |
8016 | if (connector_state->crtc == &crtc->base) | |
8017 | num_connectors++; | |
79e53945 JB |
8018 | } |
8019 | ||
190f68c5 | 8020 | if (!crtc_state->clock_set) { |
a93e255f | 8021 | refclk = i9xx_get_refclk(crtc_state, num_connectors); |
79e53945 | 8022 | |
e9fd1c02 JN |
8023 | /* |
8024 | * Returns a set of divisors for the desired target clock with | |
8025 | * the given refclk, or FALSE. The returned values represent | |
8026 | * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + | |
8027 | * 2) / p1 / p2. | |
8028 | */ | |
a93e255f ACO |
8029 | limit = intel_limit(crtc_state, refclk); |
8030 | ok = dev_priv->display.find_dpll(limit, crtc_state, | |
190f68c5 | 8031 | crtc_state->port_clock, |
e9fd1c02 | 8032 | refclk, NULL, &clock); |
f2335330 | 8033 | if (!ok) { |
e9fd1c02 JN |
8034 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
8035 | return -EINVAL; | |
8036 | } | |
79e53945 | 8037 | |
f2335330 | 8038 | /* Compat-code for transition, will disappear. */ |
190f68c5 ACO |
8039 | crtc_state->dpll.n = clock.n; |
8040 | crtc_state->dpll.m1 = clock.m1; | |
8041 | crtc_state->dpll.m2 = clock.m2; | |
8042 | crtc_state->dpll.p1 = clock.p1; | |
8043 | crtc_state->dpll.p2 = clock.p2; | |
f47709a9 | 8044 | } |
7026d4ac | 8045 | |
e9fd1c02 | 8046 | if (IS_GEN2(dev)) { |
c329a4ec | 8047 | i8xx_compute_dpll(crtc, crtc_state, NULL, |
251ac862 | 8048 | num_connectors); |
9d556c99 | 8049 | } else if (IS_CHERRYVIEW(dev)) { |
251ac862 | 8050 | chv_compute_dpll(crtc, crtc_state); |
e9fd1c02 | 8051 | } else if (IS_VALLEYVIEW(dev)) { |
251ac862 | 8052 | vlv_compute_dpll(crtc, crtc_state); |
e9fd1c02 | 8053 | } else { |
c329a4ec | 8054 | i9xx_compute_dpll(crtc, crtc_state, NULL, |
251ac862 | 8055 | num_connectors); |
e9fd1c02 | 8056 | } |
79e53945 | 8057 | |
c8f7a0db | 8058 | return 0; |
f564048e EA |
8059 | } |
8060 | ||
2fa2fe9a | 8061 | static void i9xx_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 8062 | struct intel_crtc_state *pipe_config) |
2fa2fe9a DV |
8063 | { |
8064 | struct drm_device *dev = crtc->base.dev; | |
8065 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8066 | uint32_t tmp; | |
8067 | ||
dc9e7dec VS |
8068 | if (INTEL_INFO(dev)->gen <= 3 && (IS_I830(dev) || !IS_MOBILE(dev))) |
8069 | return; | |
8070 | ||
2fa2fe9a | 8071 | tmp = I915_READ(PFIT_CONTROL); |
06922821 DV |
8072 | if (!(tmp & PFIT_ENABLE)) |
8073 | return; | |
2fa2fe9a | 8074 | |
06922821 | 8075 | /* Check whether the pfit is attached to our pipe. */ |
2fa2fe9a DV |
8076 | if (INTEL_INFO(dev)->gen < 4) { |
8077 | if (crtc->pipe != PIPE_B) | |
8078 | return; | |
2fa2fe9a DV |
8079 | } else { |
8080 | if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT)) | |
8081 | return; | |
8082 | } | |
8083 | ||
06922821 | 8084 | pipe_config->gmch_pfit.control = tmp; |
2fa2fe9a DV |
8085 | pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS); |
8086 | if (INTEL_INFO(dev)->gen < 5) | |
8087 | pipe_config->gmch_pfit.lvds_border_bits = | |
8088 | I915_READ(LVDS) & LVDS_BORDER_ENABLE; | |
8089 | } | |
8090 | ||
acbec814 | 8091 | static void vlv_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 8092 | struct intel_crtc_state *pipe_config) |
acbec814 JB |
8093 | { |
8094 | struct drm_device *dev = crtc->base.dev; | |
8095 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8096 | int pipe = pipe_config->cpu_transcoder; | |
8097 | intel_clock_t clock; | |
8098 | u32 mdiv; | |
662c6ecb | 8099 | int refclk = 100000; |
acbec814 | 8100 | |
f573de5a SK |
8101 | /* In case of MIPI DPLL will not even be used */ |
8102 | if (!(pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE)) | |
8103 | return; | |
8104 | ||
a580516d | 8105 | mutex_lock(&dev_priv->sb_lock); |
ab3c759a | 8106 | mdiv = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW3(pipe)); |
a580516d | 8107 | mutex_unlock(&dev_priv->sb_lock); |
acbec814 JB |
8108 | |
8109 | clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7; | |
8110 | clock.m2 = mdiv & DPIO_M2DIV_MASK; | |
8111 | clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf; | |
8112 | clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7; | |
8113 | clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f; | |
8114 | ||
dccbea3b | 8115 | pipe_config->port_clock = vlv_calc_dpll_params(refclk, &clock); |
acbec814 JB |
8116 | } |
8117 | ||
5724dbd1 DL |
8118 | static void |
8119 | i9xx_get_initial_plane_config(struct intel_crtc *crtc, | |
8120 | struct intel_initial_plane_config *plane_config) | |
1ad292b5 JB |
8121 | { |
8122 | struct drm_device *dev = crtc->base.dev; | |
8123 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8124 | u32 val, base, offset; | |
8125 | int pipe = crtc->pipe, plane = crtc->plane; | |
8126 | int fourcc, pixel_format; | |
6761dd31 | 8127 | unsigned int aligned_height; |
b113d5ee | 8128 | struct drm_framebuffer *fb; |
1b842c89 | 8129 | struct intel_framebuffer *intel_fb; |
1ad292b5 | 8130 | |
42a7b088 DL |
8131 | val = I915_READ(DSPCNTR(plane)); |
8132 | if (!(val & DISPLAY_PLANE_ENABLE)) | |
8133 | return; | |
8134 | ||
d9806c9f | 8135 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 8136 | if (!intel_fb) { |
1ad292b5 JB |
8137 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
8138 | return; | |
8139 | } | |
8140 | ||
1b842c89 DL |
8141 | fb = &intel_fb->base; |
8142 | ||
18c5247e DV |
8143 | if (INTEL_INFO(dev)->gen >= 4) { |
8144 | if (val & DISPPLANE_TILED) { | |
49af449b | 8145 | plane_config->tiling = I915_TILING_X; |
18c5247e DV |
8146 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; |
8147 | } | |
8148 | } | |
1ad292b5 JB |
8149 | |
8150 | pixel_format = val & DISPPLANE_PIXFORMAT_MASK; | |
b35d63fa | 8151 | fourcc = i9xx_format_to_fourcc(pixel_format); |
b113d5ee DL |
8152 | fb->pixel_format = fourcc; |
8153 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
1ad292b5 JB |
8154 | |
8155 | if (INTEL_INFO(dev)->gen >= 4) { | |
49af449b | 8156 | if (plane_config->tiling) |
1ad292b5 JB |
8157 | offset = I915_READ(DSPTILEOFF(plane)); |
8158 | else | |
8159 | offset = I915_READ(DSPLINOFF(plane)); | |
8160 | base = I915_READ(DSPSURF(plane)) & 0xfffff000; | |
8161 | } else { | |
8162 | base = I915_READ(DSPADDR(plane)); | |
8163 | } | |
8164 | plane_config->base = base; | |
8165 | ||
8166 | val = I915_READ(PIPESRC(pipe)); | |
b113d5ee DL |
8167 | fb->width = ((val >> 16) & 0xfff) + 1; |
8168 | fb->height = ((val >> 0) & 0xfff) + 1; | |
1ad292b5 JB |
8169 | |
8170 | val = I915_READ(DSPSTRIDE(pipe)); | |
b113d5ee | 8171 | fb->pitches[0] = val & 0xffffffc0; |
1ad292b5 | 8172 | |
b113d5ee | 8173 | aligned_height = intel_fb_align_height(dev, fb->height, |
091df6cb DV |
8174 | fb->pixel_format, |
8175 | fb->modifier[0]); | |
1ad292b5 | 8176 | |
f37b5c2b | 8177 | plane_config->size = fb->pitches[0] * aligned_height; |
1ad292b5 | 8178 | |
2844a921 DL |
8179 | DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", |
8180 | pipe_name(pipe), plane, fb->width, fb->height, | |
8181 | fb->bits_per_pixel, base, fb->pitches[0], | |
8182 | plane_config->size); | |
1ad292b5 | 8183 | |
2d14030b | 8184 | plane_config->fb = intel_fb; |
1ad292b5 JB |
8185 | } |
8186 | ||
70b23a98 | 8187 | static void chv_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 8188 | struct intel_crtc_state *pipe_config) |
70b23a98 VS |
8189 | { |
8190 | struct drm_device *dev = crtc->base.dev; | |
8191 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8192 | int pipe = pipe_config->cpu_transcoder; | |
8193 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
8194 | intel_clock_t clock; | |
0d7b6b11 | 8195 | u32 cmn_dw13, pll_dw0, pll_dw1, pll_dw2, pll_dw3; |
70b23a98 VS |
8196 | int refclk = 100000; |
8197 | ||
a580516d | 8198 | mutex_lock(&dev_priv->sb_lock); |
70b23a98 VS |
8199 | cmn_dw13 = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW13(port)); |
8200 | pll_dw0 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW0(port)); | |
8201 | pll_dw1 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW1(port)); | |
8202 | pll_dw2 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW2(port)); | |
0d7b6b11 | 8203 | pll_dw3 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port)); |
a580516d | 8204 | mutex_unlock(&dev_priv->sb_lock); |
70b23a98 VS |
8205 | |
8206 | clock.m1 = (pll_dw1 & 0x7) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0; | |
0d7b6b11 ID |
8207 | clock.m2 = (pll_dw0 & 0xff) << 22; |
8208 | if (pll_dw3 & DPIO_CHV_FRAC_DIV_EN) | |
8209 | clock.m2 |= pll_dw2 & 0x3fffff; | |
70b23a98 VS |
8210 | clock.n = (pll_dw1 >> DPIO_CHV_N_DIV_SHIFT) & 0xf; |
8211 | clock.p1 = (cmn_dw13 >> DPIO_CHV_P1_DIV_SHIFT) & 0x7; | |
8212 | clock.p2 = (cmn_dw13 >> DPIO_CHV_P2_DIV_SHIFT) & 0x1f; | |
8213 | ||
dccbea3b | 8214 | pipe_config->port_clock = chv_calc_dpll_params(refclk, &clock); |
70b23a98 VS |
8215 | } |
8216 | ||
0e8ffe1b | 8217 | static bool i9xx_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 8218 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
8219 | { |
8220 | struct drm_device *dev = crtc->base.dev; | |
8221 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8222 | uint32_t tmp; | |
8223 | ||
f458ebbc DV |
8224 | if (!intel_display_power_is_enabled(dev_priv, |
8225 | POWER_DOMAIN_PIPE(crtc->pipe))) | |
b5482bd0 ID |
8226 | return false; |
8227 | ||
e143a21c | 8228 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 | 8229 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
eccb140b | 8230 | |
0e8ffe1b DV |
8231 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
8232 | if (!(tmp & PIPECONF_ENABLE)) | |
8233 | return false; | |
8234 | ||
666a4537 | 8235 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
42571aef VS |
8236 | switch (tmp & PIPECONF_BPC_MASK) { |
8237 | case PIPECONF_6BPC: | |
8238 | pipe_config->pipe_bpp = 18; | |
8239 | break; | |
8240 | case PIPECONF_8BPC: | |
8241 | pipe_config->pipe_bpp = 24; | |
8242 | break; | |
8243 | case PIPECONF_10BPC: | |
8244 | pipe_config->pipe_bpp = 30; | |
8245 | break; | |
8246 | default: | |
8247 | break; | |
8248 | } | |
8249 | } | |
8250 | ||
666a4537 WB |
8251 | if ((IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) && |
8252 | (tmp & PIPECONF_COLOR_RANGE_SELECT)) | |
b5a9fa09 DV |
8253 | pipe_config->limited_color_range = true; |
8254 | ||
282740f7 VS |
8255 | if (INTEL_INFO(dev)->gen < 4) |
8256 | pipe_config->double_wide = tmp & PIPECONF_DOUBLE_WIDE; | |
8257 | ||
1bd1bd80 DV |
8258 | intel_get_pipe_timings(crtc, pipe_config); |
8259 | ||
2fa2fe9a DV |
8260 | i9xx_get_pfit_config(crtc, pipe_config); |
8261 | ||
6c49f241 DV |
8262 | if (INTEL_INFO(dev)->gen >= 4) { |
8263 | tmp = I915_READ(DPLL_MD(crtc->pipe)); | |
8264 | pipe_config->pixel_multiplier = | |
8265 | ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK) | |
8266 | >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1; | |
8bcc2795 | 8267 | pipe_config->dpll_hw_state.dpll_md = tmp; |
6c49f241 DV |
8268 | } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
8269 | tmp = I915_READ(DPLL(crtc->pipe)); | |
8270 | pipe_config->pixel_multiplier = | |
8271 | ((tmp & SDVO_MULTIPLIER_MASK) | |
8272 | >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1; | |
8273 | } else { | |
8274 | /* Note that on i915G/GM the pixel multiplier is in the sdvo | |
8275 | * port and will be fixed up in the encoder->get_config | |
8276 | * function. */ | |
8277 | pipe_config->pixel_multiplier = 1; | |
8278 | } | |
8bcc2795 | 8279 | pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe)); |
666a4537 | 8280 | if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev)) { |
1c4e0274 VS |
8281 | /* |
8282 | * DPLL_DVO_2X_MODE must be enabled for both DPLLs | |
8283 | * on 830. Filter it out here so that we don't | |
8284 | * report errors due to that. | |
8285 | */ | |
8286 | if (IS_I830(dev)) | |
8287 | pipe_config->dpll_hw_state.dpll &= ~DPLL_DVO_2X_MODE; | |
8288 | ||
8bcc2795 DV |
8289 | pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe)); |
8290 | pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe)); | |
165e901c VS |
8291 | } else { |
8292 | /* Mask out read-only status bits. */ | |
8293 | pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV | | |
8294 | DPLL_PORTC_READY_MASK | | |
8295 | DPLL_PORTB_READY_MASK); | |
8bcc2795 | 8296 | } |
6c49f241 | 8297 | |
70b23a98 VS |
8298 | if (IS_CHERRYVIEW(dev)) |
8299 | chv_crtc_clock_get(crtc, pipe_config); | |
8300 | else if (IS_VALLEYVIEW(dev)) | |
acbec814 JB |
8301 | vlv_crtc_clock_get(crtc, pipe_config); |
8302 | else | |
8303 | i9xx_crtc_clock_get(crtc, pipe_config); | |
18442d08 | 8304 | |
0f64614d VS |
8305 | /* |
8306 | * Normally the dotclock is filled in by the encoder .get_config() | |
8307 | * but in case the pipe is enabled w/o any ports we need a sane | |
8308 | * default. | |
8309 | */ | |
8310 | pipe_config->base.adjusted_mode.crtc_clock = | |
8311 | pipe_config->port_clock / pipe_config->pixel_multiplier; | |
8312 | ||
0e8ffe1b DV |
8313 | return true; |
8314 | } | |
8315 | ||
dde86e2d | 8316 | static void ironlake_init_pch_refclk(struct drm_device *dev) |
13d83a67 JB |
8317 | { |
8318 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13d83a67 | 8319 | struct intel_encoder *encoder; |
74cfd7ac | 8320 | u32 val, final; |
13d83a67 | 8321 | bool has_lvds = false; |
199e5d79 | 8322 | bool has_cpu_edp = false; |
199e5d79 | 8323 | bool has_panel = false; |
99eb6a01 KP |
8324 | bool has_ck505 = false; |
8325 | bool can_ssc = false; | |
13d83a67 JB |
8326 | |
8327 | /* We need to take the global config into account */ | |
b2784e15 | 8328 | for_each_intel_encoder(dev, encoder) { |
199e5d79 KP |
8329 | switch (encoder->type) { |
8330 | case INTEL_OUTPUT_LVDS: | |
8331 | has_panel = true; | |
8332 | has_lvds = true; | |
8333 | break; | |
8334 | case INTEL_OUTPUT_EDP: | |
8335 | has_panel = true; | |
2de6905f | 8336 | if (enc_to_dig_port(&encoder->base)->port == PORT_A) |
199e5d79 KP |
8337 | has_cpu_edp = true; |
8338 | break; | |
6847d71b PZ |
8339 | default: |
8340 | break; | |
13d83a67 JB |
8341 | } |
8342 | } | |
8343 | ||
99eb6a01 | 8344 | if (HAS_PCH_IBX(dev)) { |
41aa3448 | 8345 | has_ck505 = dev_priv->vbt.display_clock_mode; |
99eb6a01 KP |
8346 | can_ssc = has_ck505; |
8347 | } else { | |
8348 | has_ck505 = false; | |
8349 | can_ssc = true; | |
8350 | } | |
8351 | ||
2de6905f ID |
8352 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n", |
8353 | has_panel, has_lvds, has_ck505); | |
13d83a67 JB |
8354 | |
8355 | /* Ironlake: try to setup display ref clock before DPLL | |
8356 | * enabling. This is only under driver's control after | |
8357 | * PCH B stepping, previous chipset stepping should be | |
8358 | * ignoring this setting. | |
8359 | */ | |
74cfd7ac CW |
8360 | val = I915_READ(PCH_DREF_CONTROL); |
8361 | ||
8362 | /* As we must carefully and slowly disable/enable each source in turn, | |
8363 | * compute the final state we want first and check if we need to | |
8364 | * make any changes at all. | |
8365 | */ | |
8366 | final = val; | |
8367 | final &= ~DREF_NONSPREAD_SOURCE_MASK; | |
8368 | if (has_ck505) | |
8369 | final |= DREF_NONSPREAD_CK505_ENABLE; | |
8370 | else | |
8371 | final |= DREF_NONSPREAD_SOURCE_ENABLE; | |
8372 | ||
8373 | final &= ~DREF_SSC_SOURCE_MASK; | |
8374 | final &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
8375 | final &= ~DREF_SSC1_ENABLE; | |
8376 | ||
8377 | if (has_panel) { | |
8378 | final |= DREF_SSC_SOURCE_ENABLE; | |
8379 | ||
8380 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
8381 | final |= DREF_SSC1_ENABLE; | |
8382 | ||
8383 | if (has_cpu_edp) { | |
8384 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
8385 | final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; | |
8386 | else | |
8387 | final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
8388 | } else | |
8389 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
8390 | } else { | |
8391 | final |= DREF_SSC_SOURCE_DISABLE; | |
8392 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
8393 | } | |
8394 | ||
8395 | if (final == val) | |
8396 | return; | |
8397 | ||
13d83a67 | 8398 | /* Always enable nonspread source */ |
74cfd7ac | 8399 | val &= ~DREF_NONSPREAD_SOURCE_MASK; |
13d83a67 | 8400 | |
99eb6a01 | 8401 | if (has_ck505) |
74cfd7ac | 8402 | val |= DREF_NONSPREAD_CK505_ENABLE; |
99eb6a01 | 8403 | else |
74cfd7ac | 8404 | val |= DREF_NONSPREAD_SOURCE_ENABLE; |
13d83a67 | 8405 | |
199e5d79 | 8406 | if (has_panel) { |
74cfd7ac CW |
8407 | val &= ~DREF_SSC_SOURCE_MASK; |
8408 | val |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 8409 | |
199e5d79 | 8410 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 8411 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 8412 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
74cfd7ac | 8413 | val |= DREF_SSC1_ENABLE; |
e77166b5 | 8414 | } else |
74cfd7ac | 8415 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 KP |
8416 | |
8417 | /* Get SSC going before enabling the outputs */ | |
74cfd7ac | 8418 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
8419 | POSTING_READ(PCH_DREF_CONTROL); |
8420 | udelay(200); | |
8421 | ||
74cfd7ac | 8422 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
13d83a67 JB |
8423 | |
8424 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 8425 | if (has_cpu_edp) { |
99eb6a01 | 8426 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 8427 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
74cfd7ac | 8428 | val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
eba905b2 | 8429 | } else |
74cfd7ac | 8430 | val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; |
199e5d79 | 8431 | } else |
74cfd7ac | 8432 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 8433 | |
74cfd7ac | 8434 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
8435 | POSTING_READ(PCH_DREF_CONTROL); |
8436 | udelay(200); | |
8437 | } else { | |
8438 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
8439 | ||
74cfd7ac | 8440 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
199e5d79 KP |
8441 | |
8442 | /* Turn off CPU output */ | |
74cfd7ac | 8443 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 8444 | |
74cfd7ac | 8445 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
8446 | POSTING_READ(PCH_DREF_CONTROL); |
8447 | udelay(200); | |
8448 | ||
8449 | /* Turn off the SSC source */ | |
74cfd7ac CW |
8450 | val &= ~DREF_SSC_SOURCE_MASK; |
8451 | val |= DREF_SSC_SOURCE_DISABLE; | |
199e5d79 KP |
8452 | |
8453 | /* Turn off SSC1 */ | |
74cfd7ac | 8454 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 | 8455 | |
74cfd7ac | 8456 | I915_WRITE(PCH_DREF_CONTROL, val); |
13d83a67 JB |
8457 | POSTING_READ(PCH_DREF_CONTROL); |
8458 | udelay(200); | |
8459 | } | |
74cfd7ac CW |
8460 | |
8461 | BUG_ON(val != final); | |
13d83a67 JB |
8462 | } |
8463 | ||
f31f2d55 | 8464 | static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv) |
dde86e2d | 8465 | { |
f31f2d55 | 8466 | uint32_t tmp; |
dde86e2d | 8467 | |
0ff066a9 PZ |
8468 | tmp = I915_READ(SOUTH_CHICKEN2); |
8469 | tmp |= FDI_MPHY_IOSFSB_RESET_CTL; | |
8470 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
dde86e2d | 8471 | |
0ff066a9 PZ |
8472 | if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) & |
8473 | FDI_MPHY_IOSFSB_RESET_STATUS, 100)) | |
8474 | DRM_ERROR("FDI mPHY reset assert timeout\n"); | |
dde86e2d | 8475 | |
0ff066a9 PZ |
8476 | tmp = I915_READ(SOUTH_CHICKEN2); |
8477 | tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL; | |
8478 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
dde86e2d | 8479 | |
0ff066a9 PZ |
8480 | if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) & |
8481 | FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100)) | |
8482 | DRM_ERROR("FDI mPHY reset de-assert timeout\n"); | |
f31f2d55 PZ |
8483 | } |
8484 | ||
8485 | /* WaMPhyProgramming:hsw */ | |
8486 | static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv) | |
8487 | { | |
8488 | uint32_t tmp; | |
dde86e2d PZ |
8489 | |
8490 | tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY); | |
8491 | tmp &= ~(0xFF << 24); | |
8492 | tmp |= (0x12 << 24); | |
8493 | intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY); | |
8494 | ||
dde86e2d PZ |
8495 | tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY); |
8496 | tmp |= (1 << 11); | |
8497 | intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY); | |
8498 | ||
8499 | tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY); | |
8500 | tmp |= (1 << 11); | |
8501 | intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY); | |
8502 | ||
dde86e2d PZ |
8503 | tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY); |
8504 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
8505 | intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY); | |
8506 | ||
8507 | tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY); | |
8508 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
8509 | intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY); | |
8510 | ||
0ff066a9 PZ |
8511 | tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY); |
8512 | tmp &= ~(7 << 13); | |
8513 | tmp |= (5 << 13); | |
8514 | intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY); | |
dde86e2d | 8515 | |
0ff066a9 PZ |
8516 | tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY); |
8517 | tmp &= ~(7 << 13); | |
8518 | tmp |= (5 << 13); | |
8519 | intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY); | |
dde86e2d PZ |
8520 | |
8521 | tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY); | |
8522 | tmp &= ~0xFF; | |
8523 | tmp |= 0x1C; | |
8524 | intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY); | |
8525 | ||
8526 | tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY); | |
8527 | tmp &= ~0xFF; | |
8528 | tmp |= 0x1C; | |
8529 | intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY); | |
8530 | ||
8531 | tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY); | |
8532 | tmp &= ~(0xFF << 16); | |
8533 | tmp |= (0x1C << 16); | |
8534 | intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY); | |
8535 | ||
8536 | tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY); | |
8537 | tmp &= ~(0xFF << 16); | |
8538 | tmp |= (0x1C << 16); | |
8539 | intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY); | |
8540 | ||
0ff066a9 PZ |
8541 | tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY); |
8542 | tmp |= (1 << 27); | |
8543 | intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY); | |
dde86e2d | 8544 | |
0ff066a9 PZ |
8545 | tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY); |
8546 | tmp |= (1 << 27); | |
8547 | intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY); | |
dde86e2d | 8548 | |
0ff066a9 PZ |
8549 | tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY); |
8550 | tmp &= ~(0xF << 28); | |
8551 | tmp |= (4 << 28); | |
8552 | intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY); | |
dde86e2d | 8553 | |
0ff066a9 PZ |
8554 | tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY); |
8555 | tmp &= ~(0xF << 28); | |
8556 | tmp |= (4 << 28); | |
8557 | intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); | |
f31f2d55 PZ |
8558 | } |
8559 | ||
2fa86a1f PZ |
8560 | /* Implements 3 different sequences from BSpec chapter "Display iCLK |
8561 | * Programming" based on the parameters passed: | |
8562 | * - Sequence to enable CLKOUT_DP | |
8563 | * - Sequence to enable CLKOUT_DP without spread | |
8564 | * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O | |
8565 | */ | |
8566 | static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread, | |
8567 | bool with_fdi) | |
f31f2d55 PZ |
8568 | { |
8569 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa86a1f PZ |
8570 | uint32_t reg, tmp; |
8571 | ||
8572 | if (WARN(with_fdi && !with_spread, "FDI requires downspread\n")) | |
8573 | with_spread = true; | |
c2699524 | 8574 | if (WARN(HAS_PCH_LPT_LP(dev) && with_fdi, "LP PCH doesn't have FDI\n")) |
2fa86a1f | 8575 | with_fdi = false; |
f31f2d55 | 8576 | |
a580516d | 8577 | mutex_lock(&dev_priv->sb_lock); |
f31f2d55 PZ |
8578 | |
8579 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
8580 | tmp &= ~SBI_SSCCTL_DISABLE; | |
8581 | tmp |= SBI_SSCCTL_PATHALT; | |
8582 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
8583 | ||
8584 | udelay(24); | |
8585 | ||
2fa86a1f PZ |
8586 | if (with_spread) { |
8587 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
8588 | tmp &= ~SBI_SSCCTL_PATHALT; | |
8589 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
f31f2d55 | 8590 | |
2fa86a1f PZ |
8591 | if (with_fdi) { |
8592 | lpt_reset_fdi_mphy(dev_priv); | |
8593 | lpt_program_fdi_mphy(dev_priv); | |
8594 | } | |
8595 | } | |
dde86e2d | 8596 | |
c2699524 | 8597 | reg = HAS_PCH_LPT_LP(dev) ? SBI_GEN0 : SBI_DBUFF0; |
2fa86a1f PZ |
8598 | tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK); |
8599 | tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE; | |
8600 | intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK); | |
c00db246 | 8601 | |
a580516d | 8602 | mutex_unlock(&dev_priv->sb_lock); |
dde86e2d PZ |
8603 | } |
8604 | ||
47701c3b PZ |
8605 | /* Sequence to disable CLKOUT_DP */ |
8606 | static void lpt_disable_clkout_dp(struct drm_device *dev) | |
8607 | { | |
8608 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8609 | uint32_t reg, tmp; | |
8610 | ||
a580516d | 8611 | mutex_lock(&dev_priv->sb_lock); |
47701c3b | 8612 | |
c2699524 | 8613 | reg = HAS_PCH_LPT_LP(dev) ? SBI_GEN0 : SBI_DBUFF0; |
47701c3b PZ |
8614 | tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK); |
8615 | tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE; | |
8616 | intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK); | |
8617 | ||
8618 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
8619 | if (!(tmp & SBI_SSCCTL_DISABLE)) { | |
8620 | if (!(tmp & SBI_SSCCTL_PATHALT)) { | |
8621 | tmp |= SBI_SSCCTL_PATHALT; | |
8622 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
8623 | udelay(32); | |
8624 | } | |
8625 | tmp |= SBI_SSCCTL_DISABLE; | |
8626 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
8627 | } | |
8628 | ||
a580516d | 8629 | mutex_unlock(&dev_priv->sb_lock); |
47701c3b PZ |
8630 | } |
8631 | ||
f7be2c21 VS |
8632 | #define BEND_IDX(steps) ((50 + (steps)) / 5) |
8633 | ||
8634 | static const uint16_t sscdivintphase[] = { | |
8635 | [BEND_IDX( 50)] = 0x3B23, | |
8636 | [BEND_IDX( 45)] = 0x3B23, | |
8637 | [BEND_IDX( 40)] = 0x3C23, | |
8638 | [BEND_IDX( 35)] = 0x3C23, | |
8639 | [BEND_IDX( 30)] = 0x3D23, | |
8640 | [BEND_IDX( 25)] = 0x3D23, | |
8641 | [BEND_IDX( 20)] = 0x3E23, | |
8642 | [BEND_IDX( 15)] = 0x3E23, | |
8643 | [BEND_IDX( 10)] = 0x3F23, | |
8644 | [BEND_IDX( 5)] = 0x3F23, | |
8645 | [BEND_IDX( 0)] = 0x0025, | |
8646 | [BEND_IDX( -5)] = 0x0025, | |
8647 | [BEND_IDX(-10)] = 0x0125, | |
8648 | [BEND_IDX(-15)] = 0x0125, | |
8649 | [BEND_IDX(-20)] = 0x0225, | |
8650 | [BEND_IDX(-25)] = 0x0225, | |
8651 | [BEND_IDX(-30)] = 0x0325, | |
8652 | [BEND_IDX(-35)] = 0x0325, | |
8653 | [BEND_IDX(-40)] = 0x0425, | |
8654 | [BEND_IDX(-45)] = 0x0425, | |
8655 | [BEND_IDX(-50)] = 0x0525, | |
8656 | }; | |
8657 | ||
8658 | /* | |
8659 | * Bend CLKOUT_DP | |
8660 | * steps -50 to 50 inclusive, in steps of 5 | |
8661 | * < 0 slow down the clock, > 0 speed up the clock, 0 == no bend (135MHz) | |
8662 | * change in clock period = -(steps / 10) * 5.787 ps | |
8663 | */ | |
8664 | static void lpt_bend_clkout_dp(struct drm_i915_private *dev_priv, int steps) | |
8665 | { | |
8666 | uint32_t tmp; | |
8667 | int idx = BEND_IDX(steps); | |
8668 | ||
8669 | if (WARN_ON(steps % 5 != 0)) | |
8670 | return; | |
8671 | ||
8672 | if (WARN_ON(idx >= ARRAY_SIZE(sscdivintphase))) | |
8673 | return; | |
8674 | ||
8675 | mutex_lock(&dev_priv->sb_lock); | |
8676 | ||
8677 | if (steps % 10 != 0) | |
8678 | tmp = 0xAAAAAAAB; | |
8679 | else | |
8680 | tmp = 0x00000000; | |
8681 | intel_sbi_write(dev_priv, SBI_SSCDITHPHASE, tmp, SBI_ICLK); | |
8682 | ||
8683 | tmp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE, SBI_ICLK); | |
8684 | tmp &= 0xffff0000; | |
8685 | tmp |= sscdivintphase[idx]; | |
8686 | intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE, tmp, SBI_ICLK); | |
8687 | ||
8688 | mutex_unlock(&dev_priv->sb_lock); | |
8689 | } | |
8690 | ||
8691 | #undef BEND_IDX | |
8692 | ||
bf8fa3d3 PZ |
8693 | static void lpt_init_pch_refclk(struct drm_device *dev) |
8694 | { | |
bf8fa3d3 PZ |
8695 | struct intel_encoder *encoder; |
8696 | bool has_vga = false; | |
8697 | ||
b2784e15 | 8698 | for_each_intel_encoder(dev, encoder) { |
bf8fa3d3 PZ |
8699 | switch (encoder->type) { |
8700 | case INTEL_OUTPUT_ANALOG: | |
8701 | has_vga = true; | |
8702 | break; | |
6847d71b PZ |
8703 | default: |
8704 | break; | |
bf8fa3d3 PZ |
8705 | } |
8706 | } | |
8707 | ||
f7be2c21 VS |
8708 | if (has_vga) { |
8709 | lpt_bend_clkout_dp(to_i915(dev), 0); | |
47701c3b | 8710 | lpt_enable_clkout_dp(dev, true, true); |
f7be2c21 | 8711 | } else { |
47701c3b | 8712 | lpt_disable_clkout_dp(dev); |
f7be2c21 | 8713 | } |
bf8fa3d3 PZ |
8714 | } |
8715 | ||
dde86e2d PZ |
8716 | /* |
8717 | * Initialize reference clocks when the driver loads | |
8718 | */ | |
8719 | void intel_init_pch_refclk(struct drm_device *dev) | |
8720 | { | |
8721 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
8722 | ironlake_init_pch_refclk(dev); | |
8723 | else if (HAS_PCH_LPT(dev)) | |
8724 | lpt_init_pch_refclk(dev); | |
8725 | } | |
8726 | ||
55bb9992 | 8727 | static int ironlake_get_refclk(struct intel_crtc_state *crtc_state) |
d9d444cb | 8728 | { |
55bb9992 | 8729 | struct drm_device *dev = crtc_state->base.crtc->dev; |
d9d444cb | 8730 | struct drm_i915_private *dev_priv = dev->dev_private; |
55bb9992 | 8731 | struct drm_atomic_state *state = crtc_state->base.state; |
da3ced29 | 8732 | struct drm_connector *connector; |
55bb9992 | 8733 | struct drm_connector_state *connector_state; |
d9d444cb | 8734 | struct intel_encoder *encoder; |
55bb9992 | 8735 | int num_connectors = 0, i; |
d9d444cb JB |
8736 | bool is_lvds = false; |
8737 | ||
da3ced29 | 8738 | for_each_connector_in_state(state, connector, connector_state, i) { |
55bb9992 ACO |
8739 | if (connector_state->crtc != crtc_state->base.crtc) |
8740 | continue; | |
8741 | ||
8742 | encoder = to_intel_encoder(connector_state->best_encoder); | |
8743 | ||
d9d444cb JB |
8744 | switch (encoder->type) { |
8745 | case INTEL_OUTPUT_LVDS: | |
8746 | is_lvds = true; | |
8747 | break; | |
6847d71b PZ |
8748 | default: |
8749 | break; | |
d9d444cb JB |
8750 | } |
8751 | num_connectors++; | |
8752 | } | |
8753 | ||
8754 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
e91e941b | 8755 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", |
41aa3448 | 8756 | dev_priv->vbt.lvds_ssc_freq); |
e91e941b | 8757 | return dev_priv->vbt.lvds_ssc_freq; |
d9d444cb JB |
8758 | } |
8759 | ||
8760 | return 120000; | |
8761 | } | |
8762 | ||
6ff93609 | 8763 | static void ironlake_set_pipeconf(struct drm_crtc *crtc) |
79e53945 | 8764 | { |
c8203565 | 8765 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
79e53945 JB |
8766 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8767 | int pipe = intel_crtc->pipe; | |
c8203565 PZ |
8768 | uint32_t val; |
8769 | ||
78114071 | 8770 | val = 0; |
c8203565 | 8771 | |
6e3c9717 | 8772 | switch (intel_crtc->config->pipe_bpp) { |
c8203565 | 8773 | case 18: |
dfd07d72 | 8774 | val |= PIPECONF_6BPC; |
c8203565 PZ |
8775 | break; |
8776 | case 24: | |
dfd07d72 | 8777 | val |= PIPECONF_8BPC; |
c8203565 PZ |
8778 | break; |
8779 | case 30: | |
dfd07d72 | 8780 | val |= PIPECONF_10BPC; |
c8203565 PZ |
8781 | break; |
8782 | case 36: | |
dfd07d72 | 8783 | val |= PIPECONF_12BPC; |
c8203565 PZ |
8784 | break; |
8785 | default: | |
cc769b62 PZ |
8786 | /* Case prevented by intel_choose_pipe_bpp_dither. */ |
8787 | BUG(); | |
c8203565 PZ |
8788 | } |
8789 | ||
6e3c9717 | 8790 | if (intel_crtc->config->dither) |
c8203565 PZ |
8791 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
8792 | ||
6e3c9717 | 8793 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
c8203565 PZ |
8794 | val |= PIPECONF_INTERLACED_ILK; |
8795 | else | |
8796 | val |= PIPECONF_PROGRESSIVE; | |
8797 | ||
6e3c9717 | 8798 | if (intel_crtc->config->limited_color_range) |
3685a8f3 | 8799 | val |= PIPECONF_COLOR_RANGE_SELECT; |
3685a8f3 | 8800 | |
c8203565 PZ |
8801 | I915_WRITE(PIPECONF(pipe), val); |
8802 | POSTING_READ(PIPECONF(pipe)); | |
8803 | } | |
8804 | ||
86d3efce VS |
8805 | /* |
8806 | * Set up the pipe CSC unit. | |
8807 | * | |
8808 | * Currently only full range RGB to limited range RGB conversion | |
8809 | * is supported, but eventually this should handle various | |
8810 | * RGB<->YCbCr scenarios as well. | |
8811 | */ | |
50f3b016 | 8812 | static void intel_set_pipe_csc(struct drm_crtc *crtc) |
86d3efce VS |
8813 | { |
8814 | struct drm_device *dev = crtc->dev; | |
8815 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8816 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8817 | int pipe = intel_crtc->pipe; | |
8818 | uint16_t coeff = 0x7800; /* 1.0 */ | |
8819 | ||
8820 | /* | |
8821 | * TODO: Check what kind of values actually come out of the pipe | |
8822 | * with these coeff/postoff values and adjust to get the best | |
8823 | * accuracy. Perhaps we even need to take the bpc value into | |
8824 | * consideration. | |
8825 | */ | |
8826 | ||
6e3c9717 | 8827 | if (intel_crtc->config->limited_color_range) |
86d3efce VS |
8828 | coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */ |
8829 | ||
8830 | /* | |
8831 | * GY/GU and RY/RU should be the other way around according | |
8832 | * to BSpec, but reality doesn't agree. Just set them up in | |
8833 | * a way that results in the correct picture. | |
8834 | */ | |
8835 | I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16); | |
8836 | I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0); | |
8837 | ||
8838 | I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff); | |
8839 | I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0); | |
8840 | ||
8841 | I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0); | |
8842 | I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16); | |
8843 | ||
8844 | I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0); | |
8845 | I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0); | |
8846 | I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0); | |
8847 | ||
8848 | if (INTEL_INFO(dev)->gen > 6) { | |
8849 | uint16_t postoff = 0; | |
8850 | ||
6e3c9717 | 8851 | if (intel_crtc->config->limited_color_range) |
32cf0cb0 | 8852 | postoff = (16 * (1 << 12) / 255) & 0x1fff; |
86d3efce VS |
8853 | |
8854 | I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff); | |
8855 | I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff); | |
8856 | I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff); | |
8857 | ||
8858 | I915_WRITE(PIPE_CSC_MODE(pipe), 0); | |
8859 | } else { | |
8860 | uint32_t mode = CSC_MODE_YUV_TO_RGB; | |
8861 | ||
6e3c9717 | 8862 | if (intel_crtc->config->limited_color_range) |
86d3efce VS |
8863 | mode |= CSC_BLACK_SCREEN_OFFSET; |
8864 | ||
8865 | I915_WRITE(PIPE_CSC_MODE(pipe), mode); | |
8866 | } | |
8867 | } | |
8868 | ||
6ff93609 | 8869 | static void haswell_set_pipeconf(struct drm_crtc *crtc) |
ee2b0b38 | 8870 | { |
756f85cf PZ |
8871 | struct drm_device *dev = crtc->dev; |
8872 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee2b0b38 | 8873 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
756f85cf | 8874 | enum pipe pipe = intel_crtc->pipe; |
6e3c9717 | 8875 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
ee2b0b38 PZ |
8876 | uint32_t val; |
8877 | ||
3eff4faa | 8878 | val = 0; |
ee2b0b38 | 8879 | |
6e3c9717 | 8880 | if (IS_HASWELL(dev) && intel_crtc->config->dither) |
ee2b0b38 PZ |
8881 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
8882 | ||
6e3c9717 | 8883 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
ee2b0b38 PZ |
8884 | val |= PIPECONF_INTERLACED_ILK; |
8885 | else | |
8886 | val |= PIPECONF_PROGRESSIVE; | |
8887 | ||
702e7a56 PZ |
8888 | I915_WRITE(PIPECONF(cpu_transcoder), val); |
8889 | POSTING_READ(PIPECONF(cpu_transcoder)); | |
3eff4faa DV |
8890 | |
8891 | I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT); | |
8892 | POSTING_READ(GAMMA_MODE(intel_crtc->pipe)); | |
756f85cf | 8893 | |
3cdf122c | 8894 | if (IS_BROADWELL(dev) || INTEL_INFO(dev)->gen >= 9) { |
756f85cf PZ |
8895 | val = 0; |
8896 | ||
6e3c9717 | 8897 | switch (intel_crtc->config->pipe_bpp) { |
756f85cf PZ |
8898 | case 18: |
8899 | val |= PIPEMISC_DITHER_6_BPC; | |
8900 | break; | |
8901 | case 24: | |
8902 | val |= PIPEMISC_DITHER_8_BPC; | |
8903 | break; | |
8904 | case 30: | |
8905 | val |= PIPEMISC_DITHER_10_BPC; | |
8906 | break; | |
8907 | case 36: | |
8908 | val |= PIPEMISC_DITHER_12_BPC; | |
8909 | break; | |
8910 | default: | |
8911 | /* Case prevented by pipe_config_set_bpp. */ | |
8912 | BUG(); | |
8913 | } | |
8914 | ||
6e3c9717 | 8915 | if (intel_crtc->config->dither) |
756f85cf PZ |
8916 | val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP; |
8917 | ||
8918 | I915_WRITE(PIPEMISC(pipe), val); | |
8919 | } | |
ee2b0b38 PZ |
8920 | } |
8921 | ||
6591c6e4 | 8922 | static bool ironlake_compute_clocks(struct drm_crtc *crtc, |
190f68c5 | 8923 | struct intel_crtc_state *crtc_state, |
6591c6e4 PZ |
8924 | intel_clock_t *clock, |
8925 | bool *has_reduced_clock, | |
8926 | intel_clock_t *reduced_clock) | |
8927 | { | |
8928 | struct drm_device *dev = crtc->dev; | |
8929 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6591c6e4 | 8930 | int refclk; |
d4906093 | 8931 | const intel_limit_t *limit; |
c329a4ec | 8932 | bool ret; |
79e53945 | 8933 | |
55bb9992 | 8934 | refclk = ironlake_get_refclk(crtc_state); |
79e53945 | 8935 | |
d4906093 ML |
8936 | /* |
8937 | * Returns a set of divisors for the desired target clock with the given | |
8938 | * refclk, or FALSE. The returned values represent the clock equation: | |
8939 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
8940 | */ | |
a93e255f ACO |
8941 | limit = intel_limit(crtc_state, refclk); |
8942 | ret = dev_priv->display.find_dpll(limit, crtc_state, | |
190f68c5 | 8943 | crtc_state->port_clock, |
ee9300bb | 8944 | refclk, NULL, clock); |
6591c6e4 PZ |
8945 | if (!ret) |
8946 | return false; | |
cda4b7d3 | 8947 | |
6591c6e4 PZ |
8948 | return true; |
8949 | } | |
8950 | ||
d4b1931c PZ |
8951 | int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp) |
8952 | { | |
8953 | /* | |
8954 | * Account for spread spectrum to avoid | |
8955 | * oversubscribing the link. Max center spread | |
8956 | * is 2.5%; use 5% for safety's sake. | |
8957 | */ | |
8958 | u32 bps = target_clock * bpp * 21 / 20; | |
619d4d04 | 8959 | return DIV_ROUND_UP(bps, link_bw * 8); |
d4b1931c PZ |
8960 | } |
8961 | ||
7429e9d4 | 8962 | static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor) |
6cf86a5e | 8963 | { |
7429e9d4 | 8964 | return i9xx_dpll_compute_m(dpll) < factor * dpll->n; |
f48d8f23 PZ |
8965 | } |
8966 | ||
de13a2e3 | 8967 | static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, |
190f68c5 | 8968 | struct intel_crtc_state *crtc_state, |
7429e9d4 | 8969 | u32 *fp, |
9a7c7890 | 8970 | intel_clock_t *reduced_clock, u32 *fp2) |
79e53945 | 8971 | { |
de13a2e3 | 8972 | struct drm_crtc *crtc = &intel_crtc->base; |
79e53945 JB |
8973 | struct drm_device *dev = crtc->dev; |
8974 | struct drm_i915_private *dev_priv = dev->dev_private; | |
55bb9992 | 8975 | struct drm_atomic_state *state = crtc_state->base.state; |
da3ced29 | 8976 | struct drm_connector *connector; |
55bb9992 ACO |
8977 | struct drm_connector_state *connector_state; |
8978 | struct intel_encoder *encoder; | |
de13a2e3 | 8979 | uint32_t dpll; |
55bb9992 | 8980 | int factor, num_connectors = 0, i; |
09ede541 | 8981 | bool is_lvds = false, is_sdvo = false; |
79e53945 | 8982 | |
da3ced29 | 8983 | for_each_connector_in_state(state, connector, connector_state, i) { |
55bb9992 ACO |
8984 | if (connector_state->crtc != crtc_state->base.crtc) |
8985 | continue; | |
8986 | ||
8987 | encoder = to_intel_encoder(connector_state->best_encoder); | |
8988 | ||
8989 | switch (encoder->type) { | |
79e53945 JB |
8990 | case INTEL_OUTPUT_LVDS: |
8991 | is_lvds = true; | |
8992 | break; | |
8993 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 8994 | case INTEL_OUTPUT_HDMI: |
79e53945 | 8995 | is_sdvo = true; |
79e53945 | 8996 | break; |
6847d71b PZ |
8997 | default: |
8998 | break; | |
79e53945 | 8999 | } |
43565a06 | 9000 | |
c751ce4f | 9001 | num_connectors++; |
79e53945 | 9002 | } |
79e53945 | 9003 | |
c1858123 | 9004 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
9005 | factor = 21; |
9006 | if (is_lvds) { | |
9007 | if ((intel_panel_use_ssc(dev_priv) && | |
e91e941b | 9008 | dev_priv->vbt.lvds_ssc_freq == 100000) || |
f0b44056 | 9009 | (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev))) |
8febb297 | 9010 | factor = 25; |
190f68c5 | 9011 | } else if (crtc_state->sdvo_tv_clock) |
8febb297 | 9012 | factor = 20; |
c1858123 | 9013 | |
190f68c5 | 9014 | if (ironlake_needs_fb_cb_tune(&crtc_state->dpll, factor)) |
7d0ac5b7 | 9015 | *fp |= FP_CB_TUNE; |
2c07245f | 9016 | |
9a7c7890 DV |
9017 | if (fp2 && (reduced_clock->m < factor * reduced_clock->n)) |
9018 | *fp2 |= FP_CB_TUNE; | |
9019 | ||
5eddb70b | 9020 | dpll = 0; |
2c07245f | 9021 | |
a07d6787 EA |
9022 | if (is_lvds) |
9023 | dpll |= DPLLB_MODE_LVDS; | |
9024 | else | |
9025 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
198a037f | 9026 | |
190f68c5 | 9027 | dpll |= (crtc_state->pixel_multiplier - 1) |
ef1b460d | 9028 | << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; |
198a037f DV |
9029 | |
9030 | if (is_sdvo) | |
4a33e48d | 9031 | dpll |= DPLL_SDVO_HIGH_SPEED; |
190f68c5 | 9032 | if (crtc_state->has_dp_encoder) |
4a33e48d | 9033 | dpll |= DPLL_SDVO_HIGH_SPEED; |
79e53945 | 9034 | |
a07d6787 | 9035 | /* compute bitmask from p1 value */ |
190f68c5 | 9036 | dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
a07d6787 | 9037 | /* also FPA1 */ |
190f68c5 | 9038 | dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
a07d6787 | 9039 | |
190f68c5 | 9040 | switch (crtc_state->dpll.p2) { |
a07d6787 EA |
9041 | case 5: |
9042 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
9043 | break; | |
9044 | case 7: | |
9045 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
9046 | break; | |
9047 | case 10: | |
9048 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
9049 | break; | |
9050 | case 14: | |
9051 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
9052 | break; | |
79e53945 JB |
9053 | } |
9054 | ||
b4c09f3b | 9055 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 9056 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
9057 | else |
9058 | dpll |= PLL_REF_INPUT_DREFCLK; | |
9059 | ||
959e16d6 | 9060 | return dpll | DPLL_VCO_ENABLE; |
de13a2e3 PZ |
9061 | } |
9062 | ||
190f68c5 ACO |
9063 | static int ironlake_crtc_compute_clock(struct intel_crtc *crtc, |
9064 | struct intel_crtc_state *crtc_state) | |
de13a2e3 | 9065 | { |
c7653199 | 9066 | struct drm_device *dev = crtc->base.dev; |
de13a2e3 | 9067 | intel_clock_t clock, reduced_clock; |
cbbab5bd | 9068 | u32 dpll = 0, fp = 0, fp2 = 0; |
e2f12b07 | 9069 | bool ok, has_reduced_clock = false; |
8b47047b | 9070 | bool is_lvds = false; |
e2b78267 | 9071 | struct intel_shared_dpll *pll; |
de13a2e3 | 9072 | |
dd3cd74a ACO |
9073 | memset(&crtc_state->dpll_hw_state, 0, |
9074 | sizeof(crtc_state->dpll_hw_state)); | |
9075 | ||
7905df29 | 9076 | is_lvds = intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS); |
79e53945 | 9077 | |
5dc5298b PZ |
9078 | WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)), |
9079 | "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev)); | |
a07d6787 | 9080 | |
190f68c5 | 9081 | ok = ironlake_compute_clocks(&crtc->base, crtc_state, &clock, |
de13a2e3 | 9082 | &has_reduced_clock, &reduced_clock); |
190f68c5 | 9083 | if (!ok && !crtc_state->clock_set) { |
de13a2e3 PZ |
9084 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
9085 | return -EINVAL; | |
79e53945 | 9086 | } |
f47709a9 | 9087 | /* Compat-code for transition, will disappear. */ |
190f68c5 ACO |
9088 | if (!crtc_state->clock_set) { |
9089 | crtc_state->dpll.n = clock.n; | |
9090 | crtc_state->dpll.m1 = clock.m1; | |
9091 | crtc_state->dpll.m2 = clock.m2; | |
9092 | crtc_state->dpll.p1 = clock.p1; | |
9093 | crtc_state->dpll.p2 = clock.p2; | |
f47709a9 | 9094 | } |
79e53945 | 9095 | |
5dc5298b | 9096 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ |
190f68c5 ACO |
9097 | if (crtc_state->has_pch_encoder) { |
9098 | fp = i9xx_dpll_compute_fp(&crtc_state->dpll); | |
cbbab5bd | 9099 | if (has_reduced_clock) |
7429e9d4 | 9100 | fp2 = i9xx_dpll_compute_fp(&reduced_clock); |
cbbab5bd | 9101 | |
190f68c5 | 9102 | dpll = ironlake_compute_dpll(crtc, crtc_state, |
cbbab5bd DV |
9103 | &fp, &reduced_clock, |
9104 | has_reduced_clock ? &fp2 : NULL); | |
9105 | ||
190f68c5 ACO |
9106 | crtc_state->dpll_hw_state.dpll = dpll; |
9107 | crtc_state->dpll_hw_state.fp0 = fp; | |
66e985c0 | 9108 | if (has_reduced_clock) |
190f68c5 | 9109 | crtc_state->dpll_hw_state.fp1 = fp2; |
66e985c0 | 9110 | else |
190f68c5 | 9111 | crtc_state->dpll_hw_state.fp1 = fp; |
66e985c0 | 9112 | |
190f68c5 | 9113 | pll = intel_get_shared_dpll(crtc, crtc_state); |
ee7b9f93 | 9114 | if (pll == NULL) { |
84f44ce7 | 9115 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n", |
c7653199 | 9116 | pipe_name(crtc->pipe)); |
4b645f14 JB |
9117 | return -EINVAL; |
9118 | } | |
3fb37703 | 9119 | } |
79e53945 | 9120 | |
ab585dea | 9121 | if (is_lvds && has_reduced_clock) |
c7653199 | 9122 | crtc->lowfreq_avail = true; |
bcd644e0 | 9123 | else |
c7653199 | 9124 | crtc->lowfreq_avail = false; |
e2b78267 | 9125 | |
c8f7a0db | 9126 | return 0; |
79e53945 JB |
9127 | } |
9128 | ||
eb14cb74 VS |
9129 | static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc, |
9130 | struct intel_link_m_n *m_n) | |
9131 | { | |
9132 | struct drm_device *dev = crtc->base.dev; | |
9133 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9134 | enum pipe pipe = crtc->pipe; | |
9135 | ||
9136 | m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe)); | |
9137 | m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe)); | |
9138 | m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe)) | |
9139 | & ~TU_SIZE_MASK; | |
9140 | m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe)); | |
9141 | m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe)) | |
9142 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
9143 | } | |
9144 | ||
9145 | static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc, | |
9146 | enum transcoder transcoder, | |
b95af8be VK |
9147 | struct intel_link_m_n *m_n, |
9148 | struct intel_link_m_n *m2_n2) | |
72419203 DV |
9149 | { |
9150 | struct drm_device *dev = crtc->base.dev; | |
9151 | struct drm_i915_private *dev_priv = dev->dev_private; | |
eb14cb74 | 9152 | enum pipe pipe = crtc->pipe; |
72419203 | 9153 | |
eb14cb74 VS |
9154 | if (INTEL_INFO(dev)->gen >= 5) { |
9155 | m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder)); | |
9156 | m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder)); | |
9157 | m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder)) | |
9158 | & ~TU_SIZE_MASK; | |
9159 | m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder)); | |
9160 | m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder)) | |
9161 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
b95af8be VK |
9162 | /* Read M2_N2 registers only for gen < 8 (M2_N2 available for |
9163 | * gen < 8) and if DRRS is supported (to make sure the | |
9164 | * registers are not unnecessarily read). | |
9165 | */ | |
9166 | if (m2_n2 && INTEL_INFO(dev)->gen < 8 && | |
6e3c9717 | 9167 | crtc->config->has_drrs) { |
b95af8be VK |
9168 | m2_n2->link_m = I915_READ(PIPE_LINK_M2(transcoder)); |
9169 | m2_n2->link_n = I915_READ(PIPE_LINK_N2(transcoder)); | |
9170 | m2_n2->gmch_m = I915_READ(PIPE_DATA_M2(transcoder)) | |
9171 | & ~TU_SIZE_MASK; | |
9172 | m2_n2->gmch_n = I915_READ(PIPE_DATA_N2(transcoder)); | |
9173 | m2_n2->tu = ((I915_READ(PIPE_DATA_M2(transcoder)) | |
9174 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
9175 | } | |
eb14cb74 VS |
9176 | } else { |
9177 | m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe)); | |
9178 | m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe)); | |
9179 | m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe)) | |
9180 | & ~TU_SIZE_MASK; | |
9181 | m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe)); | |
9182 | m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe)) | |
9183 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
9184 | } | |
9185 | } | |
9186 | ||
9187 | void intel_dp_get_m_n(struct intel_crtc *crtc, | |
5cec258b | 9188 | struct intel_crtc_state *pipe_config) |
eb14cb74 | 9189 | { |
681a8504 | 9190 | if (pipe_config->has_pch_encoder) |
eb14cb74 VS |
9191 | intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n); |
9192 | else | |
9193 | intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, | |
b95af8be VK |
9194 | &pipe_config->dp_m_n, |
9195 | &pipe_config->dp_m2_n2); | |
eb14cb74 | 9196 | } |
72419203 | 9197 | |
eb14cb74 | 9198 | static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc, |
5cec258b | 9199 | struct intel_crtc_state *pipe_config) |
eb14cb74 VS |
9200 | { |
9201 | intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, | |
b95af8be | 9202 | &pipe_config->fdi_m_n, NULL); |
72419203 DV |
9203 | } |
9204 | ||
bd2e244f | 9205 | static void skylake_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 9206 | struct intel_crtc_state *pipe_config) |
bd2e244f JB |
9207 | { |
9208 | struct drm_device *dev = crtc->base.dev; | |
9209 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a1b2278e CK |
9210 | struct intel_crtc_scaler_state *scaler_state = &pipe_config->scaler_state; |
9211 | uint32_t ps_ctrl = 0; | |
9212 | int id = -1; | |
9213 | int i; | |
bd2e244f | 9214 | |
a1b2278e CK |
9215 | /* find scaler attached to this pipe */ |
9216 | for (i = 0; i < crtc->num_scalers; i++) { | |
9217 | ps_ctrl = I915_READ(SKL_PS_CTRL(crtc->pipe, i)); | |
9218 | if (ps_ctrl & PS_SCALER_EN && !(ps_ctrl & PS_PLANE_SEL_MASK)) { | |
9219 | id = i; | |
9220 | pipe_config->pch_pfit.enabled = true; | |
9221 | pipe_config->pch_pfit.pos = I915_READ(SKL_PS_WIN_POS(crtc->pipe, i)); | |
9222 | pipe_config->pch_pfit.size = I915_READ(SKL_PS_WIN_SZ(crtc->pipe, i)); | |
9223 | break; | |
9224 | } | |
9225 | } | |
bd2e244f | 9226 | |
a1b2278e CK |
9227 | scaler_state->scaler_id = id; |
9228 | if (id >= 0) { | |
9229 | scaler_state->scaler_users |= (1 << SKL_CRTC_INDEX); | |
9230 | } else { | |
9231 | scaler_state->scaler_users &= ~(1 << SKL_CRTC_INDEX); | |
bd2e244f JB |
9232 | } |
9233 | } | |
9234 | ||
5724dbd1 DL |
9235 | static void |
9236 | skylake_get_initial_plane_config(struct intel_crtc *crtc, | |
9237 | struct intel_initial_plane_config *plane_config) | |
bc8d7dff DL |
9238 | { |
9239 | struct drm_device *dev = crtc->base.dev; | |
9240 | struct drm_i915_private *dev_priv = dev->dev_private; | |
40f46283 | 9241 | u32 val, base, offset, stride_mult, tiling; |
bc8d7dff DL |
9242 | int pipe = crtc->pipe; |
9243 | int fourcc, pixel_format; | |
6761dd31 | 9244 | unsigned int aligned_height; |
bc8d7dff | 9245 | struct drm_framebuffer *fb; |
1b842c89 | 9246 | struct intel_framebuffer *intel_fb; |
bc8d7dff | 9247 | |
d9806c9f | 9248 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 9249 | if (!intel_fb) { |
bc8d7dff DL |
9250 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
9251 | return; | |
9252 | } | |
9253 | ||
1b842c89 DL |
9254 | fb = &intel_fb->base; |
9255 | ||
bc8d7dff | 9256 | val = I915_READ(PLANE_CTL(pipe, 0)); |
42a7b088 DL |
9257 | if (!(val & PLANE_CTL_ENABLE)) |
9258 | goto error; | |
9259 | ||
bc8d7dff DL |
9260 | pixel_format = val & PLANE_CTL_FORMAT_MASK; |
9261 | fourcc = skl_format_to_fourcc(pixel_format, | |
9262 | val & PLANE_CTL_ORDER_RGBX, | |
9263 | val & PLANE_CTL_ALPHA_MASK); | |
9264 | fb->pixel_format = fourcc; | |
9265 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
9266 | ||
40f46283 DL |
9267 | tiling = val & PLANE_CTL_TILED_MASK; |
9268 | switch (tiling) { | |
9269 | case PLANE_CTL_TILED_LINEAR: | |
9270 | fb->modifier[0] = DRM_FORMAT_MOD_NONE; | |
9271 | break; | |
9272 | case PLANE_CTL_TILED_X: | |
9273 | plane_config->tiling = I915_TILING_X; | |
9274 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; | |
9275 | break; | |
9276 | case PLANE_CTL_TILED_Y: | |
9277 | fb->modifier[0] = I915_FORMAT_MOD_Y_TILED; | |
9278 | break; | |
9279 | case PLANE_CTL_TILED_YF: | |
9280 | fb->modifier[0] = I915_FORMAT_MOD_Yf_TILED; | |
9281 | break; | |
9282 | default: | |
9283 | MISSING_CASE(tiling); | |
9284 | goto error; | |
9285 | } | |
9286 | ||
bc8d7dff DL |
9287 | base = I915_READ(PLANE_SURF(pipe, 0)) & 0xfffff000; |
9288 | plane_config->base = base; | |
9289 | ||
9290 | offset = I915_READ(PLANE_OFFSET(pipe, 0)); | |
9291 | ||
9292 | val = I915_READ(PLANE_SIZE(pipe, 0)); | |
9293 | fb->height = ((val >> 16) & 0xfff) + 1; | |
9294 | fb->width = ((val >> 0) & 0x1fff) + 1; | |
9295 | ||
9296 | val = I915_READ(PLANE_STRIDE(pipe, 0)); | |
40f46283 DL |
9297 | stride_mult = intel_fb_stride_alignment(dev, fb->modifier[0], |
9298 | fb->pixel_format); | |
bc8d7dff DL |
9299 | fb->pitches[0] = (val & 0x3ff) * stride_mult; |
9300 | ||
9301 | aligned_height = intel_fb_align_height(dev, fb->height, | |
091df6cb DV |
9302 | fb->pixel_format, |
9303 | fb->modifier[0]); | |
bc8d7dff | 9304 | |
f37b5c2b | 9305 | plane_config->size = fb->pitches[0] * aligned_height; |
bc8d7dff DL |
9306 | |
9307 | DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", | |
9308 | pipe_name(pipe), fb->width, fb->height, | |
9309 | fb->bits_per_pixel, base, fb->pitches[0], | |
9310 | plane_config->size); | |
9311 | ||
2d14030b | 9312 | plane_config->fb = intel_fb; |
bc8d7dff DL |
9313 | return; |
9314 | ||
9315 | error: | |
9316 | kfree(fb); | |
9317 | } | |
9318 | ||
2fa2fe9a | 9319 | static void ironlake_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 9320 | struct intel_crtc_state *pipe_config) |
2fa2fe9a DV |
9321 | { |
9322 | struct drm_device *dev = crtc->base.dev; | |
9323 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9324 | uint32_t tmp; | |
9325 | ||
9326 | tmp = I915_READ(PF_CTL(crtc->pipe)); | |
9327 | ||
9328 | if (tmp & PF_ENABLE) { | |
fd4daa9c | 9329 | pipe_config->pch_pfit.enabled = true; |
2fa2fe9a DV |
9330 | pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe)); |
9331 | pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe)); | |
cb8b2a30 DV |
9332 | |
9333 | /* We currently do not free assignements of panel fitters on | |
9334 | * ivb/hsw (since we don't use the higher upscaling modes which | |
9335 | * differentiates them) so just WARN about this case for now. */ | |
9336 | if (IS_GEN7(dev)) { | |
9337 | WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) != | |
9338 | PF_PIPE_SEL_IVB(crtc->pipe)); | |
9339 | } | |
2fa2fe9a | 9340 | } |
79e53945 JB |
9341 | } |
9342 | ||
5724dbd1 DL |
9343 | static void |
9344 | ironlake_get_initial_plane_config(struct intel_crtc *crtc, | |
9345 | struct intel_initial_plane_config *plane_config) | |
4c6baa59 JB |
9346 | { |
9347 | struct drm_device *dev = crtc->base.dev; | |
9348 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9349 | u32 val, base, offset; | |
aeee5a49 | 9350 | int pipe = crtc->pipe; |
4c6baa59 | 9351 | int fourcc, pixel_format; |
6761dd31 | 9352 | unsigned int aligned_height; |
b113d5ee | 9353 | struct drm_framebuffer *fb; |
1b842c89 | 9354 | struct intel_framebuffer *intel_fb; |
4c6baa59 | 9355 | |
42a7b088 DL |
9356 | val = I915_READ(DSPCNTR(pipe)); |
9357 | if (!(val & DISPLAY_PLANE_ENABLE)) | |
9358 | return; | |
9359 | ||
d9806c9f | 9360 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 9361 | if (!intel_fb) { |
4c6baa59 JB |
9362 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
9363 | return; | |
9364 | } | |
9365 | ||
1b842c89 DL |
9366 | fb = &intel_fb->base; |
9367 | ||
18c5247e DV |
9368 | if (INTEL_INFO(dev)->gen >= 4) { |
9369 | if (val & DISPPLANE_TILED) { | |
49af449b | 9370 | plane_config->tiling = I915_TILING_X; |
18c5247e DV |
9371 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; |
9372 | } | |
9373 | } | |
4c6baa59 JB |
9374 | |
9375 | pixel_format = val & DISPPLANE_PIXFORMAT_MASK; | |
b35d63fa | 9376 | fourcc = i9xx_format_to_fourcc(pixel_format); |
b113d5ee DL |
9377 | fb->pixel_format = fourcc; |
9378 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
4c6baa59 | 9379 | |
aeee5a49 | 9380 | base = I915_READ(DSPSURF(pipe)) & 0xfffff000; |
4c6baa59 | 9381 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
aeee5a49 | 9382 | offset = I915_READ(DSPOFFSET(pipe)); |
4c6baa59 | 9383 | } else { |
49af449b | 9384 | if (plane_config->tiling) |
aeee5a49 | 9385 | offset = I915_READ(DSPTILEOFF(pipe)); |
4c6baa59 | 9386 | else |
aeee5a49 | 9387 | offset = I915_READ(DSPLINOFF(pipe)); |
4c6baa59 JB |
9388 | } |
9389 | plane_config->base = base; | |
9390 | ||
9391 | val = I915_READ(PIPESRC(pipe)); | |
b113d5ee DL |
9392 | fb->width = ((val >> 16) & 0xfff) + 1; |
9393 | fb->height = ((val >> 0) & 0xfff) + 1; | |
4c6baa59 JB |
9394 | |
9395 | val = I915_READ(DSPSTRIDE(pipe)); | |
b113d5ee | 9396 | fb->pitches[0] = val & 0xffffffc0; |
4c6baa59 | 9397 | |
b113d5ee | 9398 | aligned_height = intel_fb_align_height(dev, fb->height, |
091df6cb DV |
9399 | fb->pixel_format, |
9400 | fb->modifier[0]); | |
4c6baa59 | 9401 | |
f37b5c2b | 9402 | plane_config->size = fb->pitches[0] * aligned_height; |
4c6baa59 | 9403 | |
2844a921 DL |
9404 | DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", |
9405 | pipe_name(pipe), fb->width, fb->height, | |
9406 | fb->bits_per_pixel, base, fb->pitches[0], | |
9407 | plane_config->size); | |
b113d5ee | 9408 | |
2d14030b | 9409 | plane_config->fb = intel_fb; |
4c6baa59 JB |
9410 | } |
9411 | ||
0e8ffe1b | 9412 | static bool ironlake_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 9413 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
9414 | { |
9415 | struct drm_device *dev = crtc->base.dev; | |
9416 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9417 | uint32_t tmp; | |
9418 | ||
f458ebbc DV |
9419 | if (!intel_display_power_is_enabled(dev_priv, |
9420 | POWER_DOMAIN_PIPE(crtc->pipe))) | |
930e8c9e PZ |
9421 | return false; |
9422 | ||
e143a21c | 9423 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 | 9424 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
eccb140b | 9425 | |
0e8ffe1b DV |
9426 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
9427 | if (!(tmp & PIPECONF_ENABLE)) | |
9428 | return false; | |
9429 | ||
42571aef VS |
9430 | switch (tmp & PIPECONF_BPC_MASK) { |
9431 | case PIPECONF_6BPC: | |
9432 | pipe_config->pipe_bpp = 18; | |
9433 | break; | |
9434 | case PIPECONF_8BPC: | |
9435 | pipe_config->pipe_bpp = 24; | |
9436 | break; | |
9437 | case PIPECONF_10BPC: | |
9438 | pipe_config->pipe_bpp = 30; | |
9439 | break; | |
9440 | case PIPECONF_12BPC: | |
9441 | pipe_config->pipe_bpp = 36; | |
9442 | break; | |
9443 | default: | |
9444 | break; | |
9445 | } | |
9446 | ||
b5a9fa09 DV |
9447 | if (tmp & PIPECONF_COLOR_RANGE_SELECT) |
9448 | pipe_config->limited_color_range = true; | |
9449 | ||
ab9412ba | 9450 | if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) { |
66e985c0 DV |
9451 | struct intel_shared_dpll *pll; |
9452 | ||
88adfff1 DV |
9453 | pipe_config->has_pch_encoder = true; |
9454 | ||
627eb5a3 DV |
9455 | tmp = I915_READ(FDI_RX_CTL(crtc->pipe)); |
9456 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
9457 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
72419203 DV |
9458 | |
9459 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
6c49f241 | 9460 | |
c0d43d62 | 9461 | if (HAS_PCH_IBX(dev_priv->dev)) { |
d94ab068 DV |
9462 | pipe_config->shared_dpll = |
9463 | (enum intel_dpll_id) crtc->pipe; | |
c0d43d62 DV |
9464 | } else { |
9465 | tmp = I915_READ(PCH_DPLL_SEL); | |
9466 | if (tmp & TRANS_DPLLB_SEL(crtc->pipe)) | |
9467 | pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B; | |
9468 | else | |
9469 | pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A; | |
9470 | } | |
66e985c0 DV |
9471 | |
9472 | pll = &dev_priv->shared_dplls[pipe_config->shared_dpll]; | |
9473 | ||
9474 | WARN_ON(!pll->get_hw_state(dev_priv, pll, | |
9475 | &pipe_config->dpll_hw_state)); | |
c93f54cf DV |
9476 | |
9477 | tmp = pipe_config->dpll_hw_state.dpll; | |
9478 | pipe_config->pixel_multiplier = | |
9479 | ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK) | |
9480 | >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1; | |
18442d08 VS |
9481 | |
9482 | ironlake_pch_clock_get(crtc, pipe_config); | |
6c49f241 DV |
9483 | } else { |
9484 | pipe_config->pixel_multiplier = 1; | |
627eb5a3 DV |
9485 | } |
9486 | ||
1bd1bd80 DV |
9487 | intel_get_pipe_timings(crtc, pipe_config); |
9488 | ||
2fa2fe9a DV |
9489 | ironlake_get_pfit_config(crtc, pipe_config); |
9490 | ||
0e8ffe1b DV |
9491 | return true; |
9492 | } | |
9493 | ||
be256dc7 PZ |
9494 | static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv) |
9495 | { | |
9496 | struct drm_device *dev = dev_priv->dev; | |
be256dc7 | 9497 | struct intel_crtc *crtc; |
be256dc7 | 9498 | |
d3fcc808 | 9499 | for_each_intel_crtc(dev, crtc) |
e2c719b7 | 9500 | I915_STATE_WARN(crtc->active, "CRTC for pipe %c enabled\n", |
be256dc7 PZ |
9501 | pipe_name(crtc->pipe)); |
9502 | ||
e2c719b7 RC |
9503 | I915_STATE_WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n"); |
9504 | I915_STATE_WARN(I915_READ(SPLL_CTL) & SPLL_PLL_ENABLE, "SPLL enabled\n"); | |
01403de3 VS |
9505 | I915_STATE_WARN(I915_READ(WRPLL_CTL(0)) & WRPLL_PLL_ENABLE, "WRPLL1 enabled\n"); |
9506 | I915_STATE_WARN(I915_READ(WRPLL_CTL(1)) & WRPLL_PLL_ENABLE, "WRPLL2 enabled\n"); | |
e2c719b7 RC |
9507 | I915_STATE_WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n"); |
9508 | I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE, | |
be256dc7 | 9509 | "CPU PWM1 enabled\n"); |
c5107b87 | 9510 | if (IS_HASWELL(dev)) |
e2c719b7 | 9511 | I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE, |
c5107b87 | 9512 | "CPU PWM2 enabled\n"); |
e2c719b7 | 9513 | I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE, |
be256dc7 | 9514 | "PCH PWM1 enabled\n"); |
e2c719b7 | 9515 | I915_STATE_WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE, |
be256dc7 | 9516 | "Utility pin enabled\n"); |
e2c719b7 | 9517 | I915_STATE_WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n"); |
be256dc7 | 9518 | |
9926ada1 PZ |
9519 | /* |
9520 | * In theory we can still leave IRQs enabled, as long as only the HPD | |
9521 | * interrupts remain enabled. We used to check for that, but since it's | |
9522 | * gen-specific and since we only disable LCPLL after we fully disable | |
9523 | * the interrupts, the check below should be enough. | |
9524 | */ | |
e2c719b7 | 9525 | I915_STATE_WARN(intel_irqs_enabled(dev_priv), "IRQs enabled\n"); |
be256dc7 PZ |
9526 | } |
9527 | ||
9ccd5aeb PZ |
9528 | static uint32_t hsw_read_dcomp(struct drm_i915_private *dev_priv) |
9529 | { | |
9530 | struct drm_device *dev = dev_priv->dev; | |
9531 | ||
9532 | if (IS_HASWELL(dev)) | |
9533 | return I915_READ(D_COMP_HSW); | |
9534 | else | |
9535 | return I915_READ(D_COMP_BDW); | |
9536 | } | |
9537 | ||
3c4c9b81 PZ |
9538 | static void hsw_write_dcomp(struct drm_i915_private *dev_priv, uint32_t val) |
9539 | { | |
9540 | struct drm_device *dev = dev_priv->dev; | |
9541 | ||
9542 | if (IS_HASWELL(dev)) { | |
9543 | mutex_lock(&dev_priv->rps.hw_lock); | |
9544 | if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, | |
9545 | val)) | |
f475dadf | 9546 | DRM_ERROR("Failed to write to D_COMP\n"); |
3c4c9b81 PZ |
9547 | mutex_unlock(&dev_priv->rps.hw_lock); |
9548 | } else { | |
9ccd5aeb PZ |
9549 | I915_WRITE(D_COMP_BDW, val); |
9550 | POSTING_READ(D_COMP_BDW); | |
3c4c9b81 | 9551 | } |
be256dc7 PZ |
9552 | } |
9553 | ||
9554 | /* | |
9555 | * This function implements pieces of two sequences from BSpec: | |
9556 | * - Sequence for display software to disable LCPLL | |
9557 | * - Sequence for display software to allow package C8+ | |
9558 | * The steps implemented here are just the steps that actually touch the LCPLL | |
9559 | * register. Callers should take care of disabling all the display engine | |
9560 | * functions, doing the mode unset, fixing interrupts, etc. | |
9561 | */ | |
6ff58d53 PZ |
9562 | static void hsw_disable_lcpll(struct drm_i915_private *dev_priv, |
9563 | bool switch_to_fclk, bool allow_power_down) | |
be256dc7 PZ |
9564 | { |
9565 | uint32_t val; | |
9566 | ||
9567 | assert_can_disable_lcpll(dev_priv); | |
9568 | ||
9569 | val = I915_READ(LCPLL_CTL); | |
9570 | ||
9571 | if (switch_to_fclk) { | |
9572 | val |= LCPLL_CD_SOURCE_FCLK; | |
9573 | I915_WRITE(LCPLL_CTL, val); | |
9574 | ||
9575 | if (wait_for_atomic_us(I915_READ(LCPLL_CTL) & | |
9576 | LCPLL_CD_SOURCE_FCLK_DONE, 1)) | |
9577 | DRM_ERROR("Switching to FCLK failed\n"); | |
9578 | ||
9579 | val = I915_READ(LCPLL_CTL); | |
9580 | } | |
9581 | ||
9582 | val |= LCPLL_PLL_DISABLE; | |
9583 | I915_WRITE(LCPLL_CTL, val); | |
9584 | POSTING_READ(LCPLL_CTL); | |
9585 | ||
9586 | if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1)) | |
9587 | DRM_ERROR("LCPLL still locked\n"); | |
9588 | ||
9ccd5aeb | 9589 | val = hsw_read_dcomp(dev_priv); |
be256dc7 | 9590 | val |= D_COMP_COMP_DISABLE; |
3c4c9b81 | 9591 | hsw_write_dcomp(dev_priv, val); |
be256dc7 PZ |
9592 | ndelay(100); |
9593 | ||
9ccd5aeb PZ |
9594 | if (wait_for((hsw_read_dcomp(dev_priv) & D_COMP_RCOMP_IN_PROGRESS) == 0, |
9595 | 1)) | |
be256dc7 PZ |
9596 | DRM_ERROR("D_COMP RCOMP still in progress\n"); |
9597 | ||
9598 | if (allow_power_down) { | |
9599 | val = I915_READ(LCPLL_CTL); | |
9600 | val |= LCPLL_POWER_DOWN_ALLOW; | |
9601 | I915_WRITE(LCPLL_CTL, val); | |
9602 | POSTING_READ(LCPLL_CTL); | |
9603 | } | |
9604 | } | |
9605 | ||
9606 | /* | |
9607 | * Fully restores LCPLL, disallowing power down and switching back to LCPLL | |
9608 | * source. | |
9609 | */ | |
6ff58d53 | 9610 | static void hsw_restore_lcpll(struct drm_i915_private *dev_priv) |
be256dc7 PZ |
9611 | { |
9612 | uint32_t val; | |
9613 | ||
9614 | val = I915_READ(LCPLL_CTL); | |
9615 | ||
9616 | if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK | | |
9617 | LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK) | |
9618 | return; | |
9619 | ||
a8a8bd54 PZ |
9620 | /* |
9621 | * Make sure we're not on PC8 state before disabling PC8, otherwise | |
9622 | * we'll hang the machine. To prevent PC8 state, just enable force_wake. | |
a8a8bd54 | 9623 | */ |
59bad947 | 9624 | intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); |
215733fa | 9625 | |
be256dc7 PZ |
9626 | if (val & LCPLL_POWER_DOWN_ALLOW) { |
9627 | val &= ~LCPLL_POWER_DOWN_ALLOW; | |
9628 | I915_WRITE(LCPLL_CTL, val); | |
35d8f2eb | 9629 | POSTING_READ(LCPLL_CTL); |
be256dc7 PZ |
9630 | } |
9631 | ||
9ccd5aeb | 9632 | val = hsw_read_dcomp(dev_priv); |
be256dc7 PZ |
9633 | val |= D_COMP_COMP_FORCE; |
9634 | val &= ~D_COMP_COMP_DISABLE; | |
3c4c9b81 | 9635 | hsw_write_dcomp(dev_priv, val); |
be256dc7 PZ |
9636 | |
9637 | val = I915_READ(LCPLL_CTL); | |
9638 | val &= ~LCPLL_PLL_DISABLE; | |
9639 | I915_WRITE(LCPLL_CTL, val); | |
9640 | ||
9641 | if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5)) | |
9642 | DRM_ERROR("LCPLL not locked yet\n"); | |
9643 | ||
9644 | if (val & LCPLL_CD_SOURCE_FCLK) { | |
9645 | val = I915_READ(LCPLL_CTL); | |
9646 | val &= ~LCPLL_CD_SOURCE_FCLK; | |
9647 | I915_WRITE(LCPLL_CTL, val); | |
9648 | ||
9649 | if (wait_for_atomic_us((I915_READ(LCPLL_CTL) & | |
9650 | LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1)) | |
9651 | DRM_ERROR("Switching back to LCPLL failed\n"); | |
9652 | } | |
215733fa | 9653 | |
59bad947 | 9654 | intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); |
b6283055 | 9655 | intel_update_cdclk(dev_priv->dev); |
be256dc7 PZ |
9656 | } |
9657 | ||
765dab67 PZ |
9658 | /* |
9659 | * Package states C8 and deeper are really deep PC states that can only be | |
9660 | * reached when all the devices on the system allow it, so even if the graphics | |
9661 | * device allows PC8+, it doesn't mean the system will actually get to these | |
9662 | * states. Our driver only allows PC8+ when going into runtime PM. | |
9663 | * | |
9664 | * The requirements for PC8+ are that all the outputs are disabled, the power | |
9665 | * well is disabled and most interrupts are disabled, and these are also | |
9666 | * requirements for runtime PM. When these conditions are met, we manually do | |
9667 | * the other conditions: disable the interrupts, clocks and switch LCPLL refclk | |
9668 | * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard | |
9669 | * hang the machine. | |
9670 | * | |
9671 | * When we really reach PC8 or deeper states (not just when we allow it) we lose | |
9672 | * the state of some registers, so when we come back from PC8+ we need to | |
9673 | * restore this state. We don't get into PC8+ if we're not in RC6, so we don't | |
9674 | * need to take care of the registers kept by RC6. Notice that this happens even | |
9675 | * if we don't put the device in PCI D3 state (which is what currently happens | |
9676 | * because of the runtime PM support). | |
9677 | * | |
9678 | * For more, read "Display Sequences for Package C8" on the hardware | |
9679 | * documentation. | |
9680 | */ | |
a14cb6fc | 9681 | void hsw_enable_pc8(struct drm_i915_private *dev_priv) |
c67a470b | 9682 | { |
c67a470b PZ |
9683 | struct drm_device *dev = dev_priv->dev; |
9684 | uint32_t val; | |
9685 | ||
c67a470b PZ |
9686 | DRM_DEBUG_KMS("Enabling package C8+\n"); |
9687 | ||
c2699524 | 9688 | if (HAS_PCH_LPT_LP(dev)) { |
c67a470b PZ |
9689 | val = I915_READ(SOUTH_DSPCLK_GATE_D); |
9690 | val &= ~PCH_LP_PARTITION_LEVEL_DISABLE; | |
9691 | I915_WRITE(SOUTH_DSPCLK_GATE_D, val); | |
9692 | } | |
9693 | ||
9694 | lpt_disable_clkout_dp(dev); | |
c67a470b PZ |
9695 | hsw_disable_lcpll(dev_priv, true, true); |
9696 | } | |
9697 | ||
a14cb6fc | 9698 | void hsw_disable_pc8(struct drm_i915_private *dev_priv) |
c67a470b PZ |
9699 | { |
9700 | struct drm_device *dev = dev_priv->dev; | |
9701 | uint32_t val; | |
9702 | ||
c67a470b PZ |
9703 | DRM_DEBUG_KMS("Disabling package C8+\n"); |
9704 | ||
9705 | hsw_restore_lcpll(dev_priv); | |
c67a470b PZ |
9706 | lpt_init_pch_refclk(dev); |
9707 | ||
c2699524 | 9708 | if (HAS_PCH_LPT_LP(dev)) { |
c67a470b PZ |
9709 | val = I915_READ(SOUTH_DSPCLK_GATE_D); |
9710 | val |= PCH_LP_PARTITION_LEVEL_DISABLE; | |
9711 | I915_WRITE(SOUTH_DSPCLK_GATE_D, val); | |
9712 | } | |
c67a470b PZ |
9713 | } |
9714 | ||
27c329ed | 9715 | static void broxton_modeset_commit_cdclk(struct drm_atomic_state *old_state) |
f8437dd1 | 9716 | { |
a821fc46 | 9717 | struct drm_device *dev = old_state->dev; |
1a617b77 ML |
9718 | struct intel_atomic_state *old_intel_state = |
9719 | to_intel_atomic_state(old_state); | |
9720 | unsigned int req_cdclk = old_intel_state->dev_cdclk; | |
f8437dd1 | 9721 | |
27c329ed | 9722 | broxton_set_cdclk(dev, req_cdclk); |
f8437dd1 VK |
9723 | } |
9724 | ||
b432e5cf | 9725 | /* compute the max rate for new configuration */ |
27c329ed | 9726 | static int ilk_max_pixel_rate(struct drm_atomic_state *state) |
b432e5cf | 9727 | { |
565602d7 ML |
9728 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
9729 | struct drm_i915_private *dev_priv = state->dev->dev_private; | |
9730 | struct drm_crtc *crtc; | |
9731 | struct drm_crtc_state *cstate; | |
27c329ed | 9732 | struct intel_crtc_state *crtc_state; |
565602d7 ML |
9733 | unsigned max_pixel_rate = 0, i; |
9734 | enum pipe pipe; | |
b432e5cf | 9735 | |
565602d7 ML |
9736 | memcpy(intel_state->min_pixclk, dev_priv->min_pixclk, |
9737 | sizeof(intel_state->min_pixclk)); | |
27c329ed | 9738 | |
565602d7 ML |
9739 | for_each_crtc_in_state(state, crtc, cstate, i) { |
9740 | int pixel_rate; | |
27c329ed | 9741 | |
565602d7 ML |
9742 | crtc_state = to_intel_crtc_state(cstate); |
9743 | if (!crtc_state->base.enable) { | |
9744 | intel_state->min_pixclk[i] = 0; | |
b432e5cf | 9745 | continue; |
565602d7 | 9746 | } |
b432e5cf | 9747 | |
27c329ed | 9748 | pixel_rate = ilk_pipe_pixel_rate(crtc_state); |
b432e5cf VS |
9749 | |
9750 | /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */ | |
565602d7 | 9751 | if (IS_BROADWELL(dev_priv) && crtc_state->ips_enabled) |
b432e5cf VS |
9752 | pixel_rate = DIV_ROUND_UP(pixel_rate * 100, 95); |
9753 | ||
565602d7 | 9754 | intel_state->min_pixclk[i] = pixel_rate; |
b432e5cf VS |
9755 | } |
9756 | ||
565602d7 ML |
9757 | if (!intel_state->active_crtcs) |
9758 | return 0; | |
9759 | ||
9760 | for_each_pipe(dev_priv, pipe) | |
9761 | max_pixel_rate = max(intel_state->min_pixclk[pipe], max_pixel_rate); | |
9762 | ||
b432e5cf VS |
9763 | return max_pixel_rate; |
9764 | } | |
9765 | ||
9766 | static void broadwell_set_cdclk(struct drm_device *dev, int cdclk) | |
9767 | { | |
9768 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9769 | uint32_t val, data; | |
9770 | int ret; | |
9771 | ||
9772 | if (WARN((I915_READ(LCPLL_CTL) & | |
9773 | (LCPLL_PLL_DISABLE | LCPLL_PLL_LOCK | | |
9774 | LCPLL_CD_CLOCK_DISABLE | LCPLL_ROOT_CD_CLOCK_DISABLE | | |
9775 | LCPLL_CD2X_CLOCK_DISABLE | LCPLL_POWER_DOWN_ALLOW | | |
9776 | LCPLL_CD_SOURCE_FCLK)) != LCPLL_PLL_LOCK, | |
9777 | "trying to change cdclk frequency with cdclk not enabled\n")) | |
9778 | return; | |
9779 | ||
9780 | mutex_lock(&dev_priv->rps.hw_lock); | |
9781 | ret = sandybridge_pcode_write(dev_priv, | |
9782 | BDW_PCODE_DISPLAY_FREQ_CHANGE_REQ, 0x0); | |
9783 | mutex_unlock(&dev_priv->rps.hw_lock); | |
9784 | if (ret) { | |
9785 | DRM_ERROR("failed to inform pcode about cdclk change\n"); | |
9786 | return; | |
9787 | } | |
9788 | ||
9789 | val = I915_READ(LCPLL_CTL); | |
9790 | val |= LCPLL_CD_SOURCE_FCLK; | |
9791 | I915_WRITE(LCPLL_CTL, val); | |
9792 | ||
9793 | if (wait_for_atomic_us(I915_READ(LCPLL_CTL) & | |
9794 | LCPLL_CD_SOURCE_FCLK_DONE, 1)) | |
9795 | DRM_ERROR("Switching to FCLK failed\n"); | |
9796 | ||
9797 | val = I915_READ(LCPLL_CTL); | |
9798 | val &= ~LCPLL_CLK_FREQ_MASK; | |
9799 | ||
9800 | switch (cdclk) { | |
9801 | case 450000: | |
9802 | val |= LCPLL_CLK_FREQ_450; | |
9803 | data = 0; | |
9804 | break; | |
9805 | case 540000: | |
9806 | val |= LCPLL_CLK_FREQ_54O_BDW; | |
9807 | data = 1; | |
9808 | break; | |
9809 | case 337500: | |
9810 | val |= LCPLL_CLK_FREQ_337_5_BDW; | |
9811 | data = 2; | |
9812 | break; | |
9813 | case 675000: | |
9814 | val |= LCPLL_CLK_FREQ_675_BDW; | |
9815 | data = 3; | |
9816 | break; | |
9817 | default: | |
9818 | WARN(1, "invalid cdclk frequency\n"); | |
9819 | return; | |
9820 | } | |
9821 | ||
9822 | I915_WRITE(LCPLL_CTL, val); | |
9823 | ||
9824 | val = I915_READ(LCPLL_CTL); | |
9825 | val &= ~LCPLL_CD_SOURCE_FCLK; | |
9826 | I915_WRITE(LCPLL_CTL, val); | |
9827 | ||
9828 | if (wait_for_atomic_us((I915_READ(LCPLL_CTL) & | |
9829 | LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1)) | |
9830 | DRM_ERROR("Switching back to LCPLL failed\n"); | |
9831 | ||
9832 | mutex_lock(&dev_priv->rps.hw_lock); | |
9833 | sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, data); | |
9834 | mutex_unlock(&dev_priv->rps.hw_lock); | |
9835 | ||
9836 | intel_update_cdclk(dev); | |
9837 | ||
9838 | WARN(cdclk != dev_priv->cdclk_freq, | |
9839 | "cdclk requested %d kHz but got %d kHz\n", | |
9840 | cdclk, dev_priv->cdclk_freq); | |
9841 | } | |
9842 | ||
27c329ed | 9843 | static int broadwell_modeset_calc_cdclk(struct drm_atomic_state *state) |
b432e5cf | 9844 | { |
27c329ed | 9845 | struct drm_i915_private *dev_priv = to_i915(state->dev); |
1a617b77 | 9846 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
27c329ed | 9847 | int max_pixclk = ilk_max_pixel_rate(state); |
b432e5cf VS |
9848 | int cdclk; |
9849 | ||
9850 | /* | |
9851 | * FIXME should also account for plane ratio | |
9852 | * once 64bpp pixel formats are supported. | |
9853 | */ | |
27c329ed | 9854 | if (max_pixclk > 540000) |
b432e5cf | 9855 | cdclk = 675000; |
27c329ed | 9856 | else if (max_pixclk > 450000) |
b432e5cf | 9857 | cdclk = 540000; |
27c329ed | 9858 | else if (max_pixclk > 337500) |
b432e5cf VS |
9859 | cdclk = 450000; |
9860 | else | |
9861 | cdclk = 337500; | |
9862 | ||
b432e5cf | 9863 | if (cdclk > dev_priv->max_cdclk_freq) { |
63ba534e ML |
9864 | DRM_DEBUG_KMS("requested cdclk (%d kHz) exceeds max (%d kHz)\n", |
9865 | cdclk, dev_priv->max_cdclk_freq); | |
9866 | return -EINVAL; | |
b432e5cf VS |
9867 | } |
9868 | ||
1a617b77 ML |
9869 | intel_state->cdclk = intel_state->dev_cdclk = cdclk; |
9870 | if (!intel_state->active_crtcs) | |
9871 | intel_state->dev_cdclk = 337500; | |
b432e5cf VS |
9872 | |
9873 | return 0; | |
9874 | } | |
9875 | ||
27c329ed | 9876 | static void broadwell_modeset_commit_cdclk(struct drm_atomic_state *old_state) |
b432e5cf | 9877 | { |
27c329ed | 9878 | struct drm_device *dev = old_state->dev; |
1a617b77 ML |
9879 | struct intel_atomic_state *old_intel_state = |
9880 | to_intel_atomic_state(old_state); | |
9881 | unsigned req_cdclk = old_intel_state->dev_cdclk; | |
b432e5cf | 9882 | |
27c329ed | 9883 | broadwell_set_cdclk(dev, req_cdclk); |
b432e5cf VS |
9884 | } |
9885 | ||
190f68c5 ACO |
9886 | static int haswell_crtc_compute_clock(struct intel_crtc *crtc, |
9887 | struct intel_crtc_state *crtc_state) | |
09b4ddf9 | 9888 | { |
190f68c5 | 9889 | if (!intel_ddi_pll_select(crtc, crtc_state)) |
6441ab5f | 9890 | return -EINVAL; |
716c2e55 | 9891 | |
c7653199 | 9892 | crtc->lowfreq_avail = false; |
644cef34 | 9893 | |
c8f7a0db | 9894 | return 0; |
79e53945 JB |
9895 | } |
9896 | ||
3760b59c S |
9897 | static void bxt_get_ddi_pll(struct drm_i915_private *dev_priv, |
9898 | enum port port, | |
9899 | struct intel_crtc_state *pipe_config) | |
9900 | { | |
9901 | switch (port) { | |
9902 | case PORT_A: | |
9903 | pipe_config->ddi_pll_sel = SKL_DPLL0; | |
9904 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL1; | |
9905 | break; | |
9906 | case PORT_B: | |
9907 | pipe_config->ddi_pll_sel = SKL_DPLL1; | |
9908 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL2; | |
9909 | break; | |
9910 | case PORT_C: | |
9911 | pipe_config->ddi_pll_sel = SKL_DPLL2; | |
9912 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL3; | |
9913 | break; | |
9914 | default: | |
9915 | DRM_ERROR("Incorrect port type\n"); | |
9916 | } | |
9917 | } | |
9918 | ||
96b7dfb7 S |
9919 | static void skylake_get_ddi_pll(struct drm_i915_private *dev_priv, |
9920 | enum port port, | |
5cec258b | 9921 | struct intel_crtc_state *pipe_config) |
96b7dfb7 | 9922 | { |
3148ade7 | 9923 | u32 temp, dpll_ctl1; |
96b7dfb7 S |
9924 | |
9925 | temp = I915_READ(DPLL_CTRL2) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port); | |
9926 | pipe_config->ddi_pll_sel = temp >> (port * 3 + 1); | |
9927 | ||
9928 | switch (pipe_config->ddi_pll_sel) { | |
3148ade7 DL |
9929 | case SKL_DPLL0: |
9930 | /* | |
9931 | * On SKL the eDP DPLL (DPLL0 as we don't use SSC) is not part | |
9932 | * of the shared DPLL framework and thus needs to be read out | |
9933 | * separately | |
9934 | */ | |
9935 | dpll_ctl1 = I915_READ(DPLL_CTRL1); | |
9936 | pipe_config->dpll_hw_state.ctrl1 = dpll_ctl1 & 0x3f; | |
9937 | break; | |
96b7dfb7 S |
9938 | case SKL_DPLL1: |
9939 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL1; | |
9940 | break; | |
9941 | case SKL_DPLL2: | |
9942 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL2; | |
9943 | break; | |
9944 | case SKL_DPLL3: | |
9945 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL3; | |
9946 | break; | |
96b7dfb7 S |
9947 | } |
9948 | } | |
9949 | ||
7d2c8175 DL |
9950 | static void haswell_get_ddi_pll(struct drm_i915_private *dev_priv, |
9951 | enum port port, | |
5cec258b | 9952 | struct intel_crtc_state *pipe_config) |
7d2c8175 DL |
9953 | { |
9954 | pipe_config->ddi_pll_sel = I915_READ(PORT_CLK_SEL(port)); | |
9955 | ||
9956 | switch (pipe_config->ddi_pll_sel) { | |
9957 | case PORT_CLK_SEL_WRPLL1: | |
9958 | pipe_config->shared_dpll = DPLL_ID_WRPLL1; | |
9959 | break; | |
9960 | case PORT_CLK_SEL_WRPLL2: | |
9961 | pipe_config->shared_dpll = DPLL_ID_WRPLL2; | |
9962 | break; | |
00490c22 ML |
9963 | case PORT_CLK_SEL_SPLL: |
9964 | pipe_config->shared_dpll = DPLL_ID_SPLL; | |
79bd23da | 9965 | break; |
7d2c8175 DL |
9966 | } |
9967 | } | |
9968 | ||
26804afd | 9969 | static void haswell_get_ddi_port_state(struct intel_crtc *crtc, |
5cec258b | 9970 | struct intel_crtc_state *pipe_config) |
26804afd DV |
9971 | { |
9972 | struct drm_device *dev = crtc->base.dev; | |
9973 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d452c5b6 | 9974 | struct intel_shared_dpll *pll; |
26804afd DV |
9975 | enum port port; |
9976 | uint32_t tmp; | |
9977 | ||
9978 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder)); | |
9979 | ||
9980 | port = (tmp & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT; | |
9981 | ||
ef11bdb3 | 9982 | if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) |
96b7dfb7 | 9983 | skylake_get_ddi_pll(dev_priv, port, pipe_config); |
3760b59c S |
9984 | else if (IS_BROXTON(dev)) |
9985 | bxt_get_ddi_pll(dev_priv, port, pipe_config); | |
96b7dfb7 S |
9986 | else |
9987 | haswell_get_ddi_pll(dev_priv, port, pipe_config); | |
9cd86933 | 9988 | |
d452c5b6 DV |
9989 | if (pipe_config->shared_dpll >= 0) { |
9990 | pll = &dev_priv->shared_dplls[pipe_config->shared_dpll]; | |
9991 | ||
9992 | WARN_ON(!pll->get_hw_state(dev_priv, pll, | |
9993 | &pipe_config->dpll_hw_state)); | |
9994 | } | |
9995 | ||
26804afd DV |
9996 | /* |
9997 | * Haswell has only FDI/PCH transcoder A. It is which is connected to | |
9998 | * DDI E. So just check whether this pipe is wired to DDI E and whether | |
9999 | * the PCH transcoder is on. | |
10000 | */ | |
ca370455 DL |
10001 | if (INTEL_INFO(dev)->gen < 9 && |
10002 | (port == PORT_E) && I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) { | |
26804afd DV |
10003 | pipe_config->has_pch_encoder = true; |
10004 | ||
10005 | tmp = I915_READ(FDI_RX_CTL(PIPE_A)); | |
10006 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
10007 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
10008 | ||
10009 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
10010 | } | |
10011 | } | |
10012 | ||
0e8ffe1b | 10013 | static bool haswell_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 10014 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
10015 | { |
10016 | struct drm_device *dev = crtc->base.dev; | |
10017 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa2fe9a | 10018 | enum intel_display_power_domain pfit_domain; |
0e8ffe1b DV |
10019 | uint32_t tmp; |
10020 | ||
f458ebbc | 10021 | if (!intel_display_power_is_enabled(dev_priv, |
b5482bd0 ID |
10022 | POWER_DOMAIN_PIPE(crtc->pipe))) |
10023 | return false; | |
10024 | ||
e143a21c | 10025 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 DV |
10026 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
10027 | ||
eccb140b DV |
10028 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); |
10029 | if (tmp & TRANS_DDI_FUNC_ENABLE) { | |
10030 | enum pipe trans_edp_pipe; | |
10031 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { | |
10032 | default: | |
10033 | WARN(1, "unknown pipe linked to edp transcoder\n"); | |
10034 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
10035 | case TRANS_DDI_EDP_INPUT_A_ON: | |
10036 | trans_edp_pipe = PIPE_A; | |
10037 | break; | |
10038 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
10039 | trans_edp_pipe = PIPE_B; | |
10040 | break; | |
10041 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
10042 | trans_edp_pipe = PIPE_C; | |
10043 | break; | |
10044 | } | |
10045 | ||
10046 | if (trans_edp_pipe == crtc->pipe) | |
10047 | pipe_config->cpu_transcoder = TRANSCODER_EDP; | |
10048 | } | |
10049 | ||
f458ebbc | 10050 | if (!intel_display_power_is_enabled(dev_priv, |
eccb140b | 10051 | POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder))) |
2bfce950 PZ |
10052 | return false; |
10053 | ||
eccb140b | 10054 | tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder)); |
0e8ffe1b DV |
10055 | if (!(tmp & PIPECONF_ENABLE)) |
10056 | return false; | |
10057 | ||
26804afd | 10058 | haswell_get_ddi_port_state(crtc, pipe_config); |
627eb5a3 | 10059 | |
1bd1bd80 DV |
10060 | intel_get_pipe_timings(crtc, pipe_config); |
10061 | ||
a1b2278e CK |
10062 | if (INTEL_INFO(dev)->gen >= 9) { |
10063 | skl_init_scalers(dev, crtc, pipe_config); | |
10064 | } | |
10065 | ||
2fa2fe9a | 10066 | pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe); |
af99ceda CK |
10067 | |
10068 | if (INTEL_INFO(dev)->gen >= 9) { | |
10069 | pipe_config->scaler_state.scaler_id = -1; | |
10070 | pipe_config->scaler_state.scaler_users &= ~(1 << SKL_CRTC_INDEX); | |
10071 | } | |
10072 | ||
bd2e244f | 10073 | if (intel_display_power_is_enabled(dev_priv, pfit_domain)) { |
1c132b44 | 10074 | if (INTEL_INFO(dev)->gen >= 9) |
bd2e244f | 10075 | skylake_get_pfit_config(crtc, pipe_config); |
ff6d9f55 | 10076 | else |
1c132b44 | 10077 | ironlake_get_pfit_config(crtc, pipe_config); |
bd2e244f | 10078 | } |
88adfff1 | 10079 | |
e59150dc JB |
10080 | if (IS_HASWELL(dev)) |
10081 | pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) && | |
10082 | (I915_READ(IPS_CTL) & IPS_ENABLE); | |
42db64ef | 10083 | |
ebb69c95 CT |
10084 | if (pipe_config->cpu_transcoder != TRANSCODER_EDP) { |
10085 | pipe_config->pixel_multiplier = | |
10086 | I915_READ(PIPE_MULT(pipe_config->cpu_transcoder)) + 1; | |
10087 | } else { | |
10088 | pipe_config->pixel_multiplier = 1; | |
10089 | } | |
6c49f241 | 10090 | |
0e8ffe1b DV |
10091 | return true; |
10092 | } | |
10093 | ||
55a08b3f ML |
10094 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base, |
10095 | const struct intel_plane_state *plane_state) | |
560b85bb CW |
10096 | { |
10097 | struct drm_device *dev = crtc->dev; | |
10098 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10099 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
dc41c154 | 10100 | uint32_t cntl = 0, size = 0; |
560b85bb | 10101 | |
55a08b3f ML |
10102 | if (plane_state && plane_state->visible) { |
10103 | unsigned int width = plane_state->base.crtc_w; | |
10104 | unsigned int height = plane_state->base.crtc_h; | |
dc41c154 VS |
10105 | unsigned int stride = roundup_pow_of_two(width) * 4; |
10106 | ||
10107 | switch (stride) { | |
10108 | default: | |
10109 | WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n", | |
10110 | width, stride); | |
10111 | stride = 256; | |
10112 | /* fallthrough */ | |
10113 | case 256: | |
10114 | case 512: | |
10115 | case 1024: | |
10116 | case 2048: | |
10117 | break; | |
4b0e333e CW |
10118 | } |
10119 | ||
dc41c154 VS |
10120 | cntl |= CURSOR_ENABLE | |
10121 | CURSOR_GAMMA_ENABLE | | |
10122 | CURSOR_FORMAT_ARGB | | |
10123 | CURSOR_STRIDE(stride); | |
10124 | ||
10125 | size = (height << 12) | width; | |
4b0e333e | 10126 | } |
560b85bb | 10127 | |
dc41c154 VS |
10128 | if (intel_crtc->cursor_cntl != 0 && |
10129 | (intel_crtc->cursor_base != base || | |
10130 | intel_crtc->cursor_size != size || | |
10131 | intel_crtc->cursor_cntl != cntl)) { | |
10132 | /* On these chipsets we can only modify the base/size/stride | |
10133 | * whilst the cursor is disabled. | |
10134 | */ | |
0b87c24e VS |
10135 | I915_WRITE(CURCNTR(PIPE_A), 0); |
10136 | POSTING_READ(CURCNTR(PIPE_A)); | |
dc41c154 | 10137 | intel_crtc->cursor_cntl = 0; |
4b0e333e | 10138 | } |
560b85bb | 10139 | |
99d1f387 | 10140 | if (intel_crtc->cursor_base != base) { |
0b87c24e | 10141 | I915_WRITE(CURBASE(PIPE_A), base); |
99d1f387 VS |
10142 | intel_crtc->cursor_base = base; |
10143 | } | |
4726e0b0 | 10144 | |
dc41c154 VS |
10145 | if (intel_crtc->cursor_size != size) { |
10146 | I915_WRITE(CURSIZE, size); | |
10147 | intel_crtc->cursor_size = size; | |
4b0e333e | 10148 | } |
560b85bb | 10149 | |
4b0e333e | 10150 | if (intel_crtc->cursor_cntl != cntl) { |
0b87c24e VS |
10151 | I915_WRITE(CURCNTR(PIPE_A), cntl); |
10152 | POSTING_READ(CURCNTR(PIPE_A)); | |
4b0e333e | 10153 | intel_crtc->cursor_cntl = cntl; |
560b85bb | 10154 | } |
560b85bb CW |
10155 | } |
10156 | ||
55a08b3f ML |
10157 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base, |
10158 | const struct intel_plane_state *plane_state) | |
65a21cd6 JB |
10159 | { |
10160 | struct drm_device *dev = crtc->dev; | |
10161 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10162 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
10163 | int pipe = intel_crtc->pipe; | |
663f3122 | 10164 | uint32_t cntl = 0; |
4b0e333e | 10165 | |
55a08b3f | 10166 | if (plane_state && plane_state->visible) { |
4b0e333e | 10167 | cntl = MCURSOR_GAMMA_ENABLE; |
55a08b3f | 10168 | switch (plane_state->base.crtc_w) { |
4726e0b0 SK |
10169 | case 64: |
10170 | cntl |= CURSOR_MODE_64_ARGB_AX; | |
10171 | break; | |
10172 | case 128: | |
10173 | cntl |= CURSOR_MODE_128_ARGB_AX; | |
10174 | break; | |
10175 | case 256: | |
10176 | cntl |= CURSOR_MODE_256_ARGB_AX; | |
10177 | break; | |
10178 | default: | |
55a08b3f | 10179 | MISSING_CASE(plane_state->base.crtc_w); |
4726e0b0 | 10180 | return; |
65a21cd6 | 10181 | } |
4b0e333e | 10182 | cntl |= pipe << 28; /* Connect to correct pipe */ |
47bf17a7 | 10183 | |
fc6f93bc | 10184 | if (HAS_DDI(dev)) |
47bf17a7 | 10185 | cntl |= CURSOR_PIPE_CSC_ENABLE; |
65a21cd6 | 10186 | |
55a08b3f ML |
10187 | if (plane_state->base.rotation == BIT(DRM_ROTATE_180)) |
10188 | cntl |= CURSOR_ROTATE_180; | |
10189 | } | |
4398ad45 | 10190 | |
4b0e333e CW |
10191 | if (intel_crtc->cursor_cntl != cntl) { |
10192 | I915_WRITE(CURCNTR(pipe), cntl); | |
10193 | POSTING_READ(CURCNTR(pipe)); | |
10194 | intel_crtc->cursor_cntl = cntl; | |
65a21cd6 | 10195 | } |
4b0e333e | 10196 | |
65a21cd6 | 10197 | /* and commit changes on next vblank */ |
5efb3e28 VS |
10198 | I915_WRITE(CURBASE(pipe), base); |
10199 | POSTING_READ(CURBASE(pipe)); | |
99d1f387 VS |
10200 | |
10201 | intel_crtc->cursor_base = base; | |
65a21cd6 JB |
10202 | } |
10203 | ||
cda4b7d3 | 10204 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f | 10205 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
55a08b3f | 10206 | const struct intel_plane_state *plane_state) |
cda4b7d3 CW |
10207 | { |
10208 | struct drm_device *dev = crtc->dev; | |
10209 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10210 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
10211 | int pipe = intel_crtc->pipe; | |
55a08b3f ML |
10212 | u32 base = intel_crtc->cursor_addr; |
10213 | u32 pos = 0; | |
cda4b7d3 | 10214 | |
55a08b3f ML |
10215 | if (plane_state) { |
10216 | int x = plane_state->base.crtc_x; | |
10217 | int y = plane_state->base.crtc_y; | |
cda4b7d3 | 10218 | |
55a08b3f ML |
10219 | if (x < 0) { |
10220 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
10221 | x = -x; | |
10222 | } | |
10223 | pos |= x << CURSOR_X_SHIFT; | |
cda4b7d3 | 10224 | |
55a08b3f ML |
10225 | if (y < 0) { |
10226 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
10227 | y = -y; | |
10228 | } | |
10229 | pos |= y << CURSOR_Y_SHIFT; | |
10230 | ||
10231 | /* ILK+ do this automagically */ | |
10232 | if (HAS_GMCH_DISPLAY(dev) && | |
10233 | plane_state->base.rotation == BIT(DRM_ROTATE_180)) { | |
10234 | base += (plane_state->base.crtc_h * | |
10235 | plane_state->base.crtc_w - 1) * 4; | |
10236 | } | |
cda4b7d3 | 10237 | } |
cda4b7d3 | 10238 | |
5efb3e28 VS |
10239 | I915_WRITE(CURPOS(pipe), pos); |
10240 | ||
8ac54669 | 10241 | if (IS_845G(dev) || IS_I865G(dev)) |
55a08b3f | 10242 | i845_update_cursor(crtc, base, plane_state); |
5efb3e28 | 10243 | else |
55a08b3f | 10244 | i9xx_update_cursor(crtc, base, plane_state); |
cda4b7d3 CW |
10245 | } |
10246 | ||
dc41c154 VS |
10247 | static bool cursor_size_ok(struct drm_device *dev, |
10248 | uint32_t width, uint32_t height) | |
10249 | { | |
10250 | if (width == 0 || height == 0) | |
10251 | return false; | |
10252 | ||
10253 | /* | |
10254 | * 845g/865g are special in that they are only limited by | |
10255 | * the width of their cursors, the height is arbitrary up to | |
10256 | * the precision of the register. Everything else requires | |
10257 | * square cursors, limited to a few power-of-two sizes. | |
10258 | */ | |
10259 | if (IS_845G(dev) || IS_I865G(dev)) { | |
10260 | if ((width & 63) != 0) | |
10261 | return false; | |
10262 | ||
10263 | if (width > (IS_845G(dev) ? 64 : 512)) | |
10264 | return false; | |
10265 | ||
10266 | if (height > 1023) | |
10267 | return false; | |
10268 | } else { | |
10269 | switch (width | height) { | |
10270 | case 256: | |
10271 | case 128: | |
10272 | if (IS_GEN2(dev)) | |
10273 | return false; | |
10274 | case 64: | |
10275 | break; | |
10276 | default: | |
10277 | return false; | |
10278 | } | |
10279 | } | |
10280 | ||
10281 | return true; | |
10282 | } | |
10283 | ||
79e53945 | 10284 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 10285 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 10286 | { |
7203425a | 10287 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 10288 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 10289 | |
7203425a | 10290 | for (i = start; i < end; i++) { |
79e53945 JB |
10291 | intel_crtc->lut_r[i] = red[i] >> 8; |
10292 | intel_crtc->lut_g[i] = green[i] >> 8; | |
10293 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
10294 | } | |
10295 | ||
10296 | intel_crtc_load_lut(crtc); | |
10297 | } | |
10298 | ||
79e53945 JB |
10299 | /* VESA 640x480x72Hz mode to set on the pipe */ |
10300 | static struct drm_display_mode load_detect_mode = { | |
10301 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
10302 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
10303 | }; | |
10304 | ||
a8bb6818 DV |
10305 | struct drm_framebuffer * |
10306 | __intel_framebuffer_create(struct drm_device *dev, | |
10307 | struct drm_mode_fb_cmd2 *mode_cmd, | |
10308 | struct drm_i915_gem_object *obj) | |
d2dff872 CW |
10309 | { |
10310 | struct intel_framebuffer *intel_fb; | |
10311 | int ret; | |
10312 | ||
10313 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
dcb1394e | 10314 | if (!intel_fb) |
d2dff872 | 10315 | return ERR_PTR(-ENOMEM); |
d2dff872 CW |
10316 | |
10317 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
dd4916c5 DV |
10318 | if (ret) |
10319 | goto err; | |
d2dff872 CW |
10320 | |
10321 | return &intel_fb->base; | |
dcb1394e | 10322 | |
dd4916c5 | 10323 | err: |
dd4916c5 | 10324 | kfree(intel_fb); |
dd4916c5 | 10325 | return ERR_PTR(ret); |
d2dff872 CW |
10326 | } |
10327 | ||
b5ea642a | 10328 | static struct drm_framebuffer * |
a8bb6818 DV |
10329 | intel_framebuffer_create(struct drm_device *dev, |
10330 | struct drm_mode_fb_cmd2 *mode_cmd, | |
10331 | struct drm_i915_gem_object *obj) | |
10332 | { | |
10333 | struct drm_framebuffer *fb; | |
10334 | int ret; | |
10335 | ||
10336 | ret = i915_mutex_lock_interruptible(dev); | |
10337 | if (ret) | |
10338 | return ERR_PTR(ret); | |
10339 | fb = __intel_framebuffer_create(dev, mode_cmd, obj); | |
10340 | mutex_unlock(&dev->struct_mutex); | |
10341 | ||
10342 | return fb; | |
10343 | } | |
10344 | ||
d2dff872 CW |
10345 | static u32 |
10346 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
10347 | { | |
10348 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
10349 | return ALIGN(pitch, 64); | |
10350 | } | |
10351 | ||
10352 | static u32 | |
10353 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
10354 | { | |
10355 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
1267a26b | 10356 | return PAGE_ALIGN(pitch * mode->vdisplay); |
d2dff872 CW |
10357 | } |
10358 | ||
10359 | static struct drm_framebuffer * | |
10360 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
10361 | struct drm_display_mode *mode, | |
10362 | int depth, int bpp) | |
10363 | { | |
dcb1394e | 10364 | struct drm_framebuffer *fb; |
d2dff872 | 10365 | struct drm_i915_gem_object *obj; |
0fed39bd | 10366 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; |
d2dff872 CW |
10367 | |
10368 | obj = i915_gem_alloc_object(dev, | |
10369 | intel_framebuffer_size_for_mode(mode, bpp)); | |
10370 | if (obj == NULL) | |
10371 | return ERR_PTR(-ENOMEM); | |
10372 | ||
10373 | mode_cmd.width = mode->hdisplay; | |
10374 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
10375 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
10376 | bpp); | |
5ca0c34a | 10377 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 | 10378 | |
dcb1394e LW |
10379 | fb = intel_framebuffer_create(dev, &mode_cmd, obj); |
10380 | if (IS_ERR(fb)) | |
10381 | drm_gem_object_unreference_unlocked(&obj->base); | |
10382 | ||
10383 | return fb; | |
d2dff872 CW |
10384 | } |
10385 | ||
10386 | static struct drm_framebuffer * | |
10387 | mode_fits_in_fbdev(struct drm_device *dev, | |
10388 | struct drm_display_mode *mode) | |
10389 | { | |
0695726e | 10390 | #ifdef CONFIG_DRM_FBDEV_EMULATION |
d2dff872 CW |
10391 | struct drm_i915_private *dev_priv = dev->dev_private; |
10392 | struct drm_i915_gem_object *obj; | |
10393 | struct drm_framebuffer *fb; | |
10394 | ||
4c0e5528 | 10395 | if (!dev_priv->fbdev) |
d2dff872 CW |
10396 | return NULL; |
10397 | ||
4c0e5528 | 10398 | if (!dev_priv->fbdev->fb) |
d2dff872 CW |
10399 | return NULL; |
10400 | ||
4c0e5528 DV |
10401 | obj = dev_priv->fbdev->fb->obj; |
10402 | BUG_ON(!obj); | |
10403 | ||
8bcd4553 | 10404 | fb = &dev_priv->fbdev->fb->base; |
01f2c773 VS |
10405 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
10406 | fb->bits_per_pixel)) | |
d2dff872 CW |
10407 | return NULL; |
10408 | ||
01f2c773 | 10409 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
10410 | return NULL; |
10411 | ||
10412 | return fb; | |
4520f53a DV |
10413 | #else |
10414 | return NULL; | |
10415 | #endif | |
d2dff872 CW |
10416 | } |
10417 | ||
d3a40d1b ACO |
10418 | static int intel_modeset_setup_plane_state(struct drm_atomic_state *state, |
10419 | struct drm_crtc *crtc, | |
10420 | struct drm_display_mode *mode, | |
10421 | struct drm_framebuffer *fb, | |
10422 | int x, int y) | |
10423 | { | |
10424 | struct drm_plane_state *plane_state; | |
10425 | int hdisplay, vdisplay; | |
10426 | int ret; | |
10427 | ||
10428 | plane_state = drm_atomic_get_plane_state(state, crtc->primary); | |
10429 | if (IS_ERR(plane_state)) | |
10430 | return PTR_ERR(plane_state); | |
10431 | ||
10432 | if (mode) | |
10433 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); | |
10434 | else | |
10435 | hdisplay = vdisplay = 0; | |
10436 | ||
10437 | ret = drm_atomic_set_crtc_for_plane(plane_state, fb ? crtc : NULL); | |
10438 | if (ret) | |
10439 | return ret; | |
10440 | drm_atomic_set_fb_for_plane(plane_state, fb); | |
10441 | plane_state->crtc_x = 0; | |
10442 | plane_state->crtc_y = 0; | |
10443 | plane_state->crtc_w = hdisplay; | |
10444 | plane_state->crtc_h = vdisplay; | |
10445 | plane_state->src_x = x << 16; | |
10446 | plane_state->src_y = y << 16; | |
10447 | plane_state->src_w = hdisplay << 16; | |
10448 | plane_state->src_h = vdisplay << 16; | |
10449 | ||
10450 | return 0; | |
10451 | } | |
10452 | ||
d2434ab7 | 10453 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 10454 | struct drm_display_mode *mode, |
51fd371b RC |
10455 | struct intel_load_detect_pipe *old, |
10456 | struct drm_modeset_acquire_ctx *ctx) | |
79e53945 JB |
10457 | { |
10458 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
10459 | struct intel_encoder *intel_encoder = |
10460 | intel_attached_encoder(connector); | |
79e53945 | 10461 | struct drm_crtc *possible_crtc; |
4ef69c7a | 10462 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
10463 | struct drm_crtc *crtc = NULL; |
10464 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 10465 | struct drm_framebuffer *fb; |
51fd371b | 10466 | struct drm_mode_config *config = &dev->mode_config; |
83a57153 | 10467 | struct drm_atomic_state *state = NULL; |
944b0c76 | 10468 | struct drm_connector_state *connector_state; |
4be07317 | 10469 | struct intel_crtc_state *crtc_state; |
51fd371b | 10470 | int ret, i = -1; |
79e53945 | 10471 | |
d2dff872 | 10472 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
c23cc417 | 10473 | connector->base.id, connector->name, |
8e329a03 | 10474 | encoder->base.id, encoder->name); |
d2dff872 | 10475 | |
51fd371b RC |
10476 | retry: |
10477 | ret = drm_modeset_lock(&config->connection_mutex, ctx); | |
10478 | if (ret) | |
ad3c558f | 10479 | goto fail; |
6e9f798d | 10480 | |
79e53945 JB |
10481 | /* |
10482 | * Algorithm gets a little messy: | |
7a5e4805 | 10483 | * |
79e53945 JB |
10484 | * - if the connector already has an assigned crtc, use it (but make |
10485 | * sure it's on first) | |
7a5e4805 | 10486 | * |
79e53945 JB |
10487 | * - try to find the first unused crtc that can drive this connector, |
10488 | * and use that if we find one | |
79e53945 JB |
10489 | */ |
10490 | ||
10491 | /* See if we already have a CRTC for this connector */ | |
10492 | if (encoder->crtc) { | |
10493 | crtc = encoder->crtc; | |
8261b191 | 10494 | |
51fd371b | 10495 | ret = drm_modeset_lock(&crtc->mutex, ctx); |
4d02e2de | 10496 | if (ret) |
ad3c558f | 10497 | goto fail; |
4d02e2de | 10498 | ret = drm_modeset_lock(&crtc->primary->mutex, ctx); |
51fd371b | 10499 | if (ret) |
ad3c558f | 10500 | goto fail; |
7b24056b | 10501 | |
24218aac | 10502 | old->dpms_mode = connector->dpms; |
8261b191 CW |
10503 | old->load_detect_temp = false; |
10504 | ||
10505 | /* Make sure the crtc and connector are running */ | |
24218aac DV |
10506 | if (connector->dpms != DRM_MODE_DPMS_ON) |
10507 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); | |
8261b191 | 10508 | |
7173188d | 10509 | return true; |
79e53945 JB |
10510 | } |
10511 | ||
10512 | /* Find an unused one (if possible) */ | |
70e1e0ec | 10513 | for_each_crtc(dev, possible_crtc) { |
79e53945 JB |
10514 | i++; |
10515 | if (!(encoder->possible_crtcs & (1 << i))) | |
10516 | continue; | |
83d65738 | 10517 | if (possible_crtc->state->enable) |
a459249c | 10518 | continue; |
a459249c VS |
10519 | |
10520 | crtc = possible_crtc; | |
10521 | break; | |
79e53945 JB |
10522 | } |
10523 | ||
10524 | /* | |
10525 | * If we didn't find an unused CRTC, don't use any. | |
10526 | */ | |
10527 | if (!crtc) { | |
7173188d | 10528 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
ad3c558f | 10529 | goto fail; |
79e53945 JB |
10530 | } |
10531 | ||
51fd371b RC |
10532 | ret = drm_modeset_lock(&crtc->mutex, ctx); |
10533 | if (ret) | |
ad3c558f | 10534 | goto fail; |
4d02e2de DV |
10535 | ret = drm_modeset_lock(&crtc->primary->mutex, ctx); |
10536 | if (ret) | |
ad3c558f | 10537 | goto fail; |
79e53945 JB |
10538 | |
10539 | intel_crtc = to_intel_crtc(crtc); | |
24218aac | 10540 | old->dpms_mode = connector->dpms; |
8261b191 | 10541 | old->load_detect_temp = true; |
d2dff872 | 10542 | old->release_fb = NULL; |
79e53945 | 10543 | |
83a57153 ACO |
10544 | state = drm_atomic_state_alloc(dev); |
10545 | if (!state) | |
10546 | return false; | |
10547 | ||
10548 | state->acquire_ctx = ctx; | |
10549 | ||
944b0c76 ACO |
10550 | connector_state = drm_atomic_get_connector_state(state, connector); |
10551 | if (IS_ERR(connector_state)) { | |
10552 | ret = PTR_ERR(connector_state); | |
10553 | goto fail; | |
10554 | } | |
10555 | ||
10556 | connector_state->crtc = crtc; | |
10557 | connector_state->best_encoder = &intel_encoder->base; | |
10558 | ||
4be07317 ACO |
10559 | crtc_state = intel_atomic_get_crtc_state(state, intel_crtc); |
10560 | if (IS_ERR(crtc_state)) { | |
10561 | ret = PTR_ERR(crtc_state); | |
10562 | goto fail; | |
10563 | } | |
10564 | ||
49d6fa21 | 10565 | crtc_state->base.active = crtc_state->base.enable = true; |
4be07317 | 10566 | |
6492711d CW |
10567 | if (!mode) |
10568 | mode = &load_detect_mode; | |
79e53945 | 10569 | |
d2dff872 CW |
10570 | /* We need a framebuffer large enough to accommodate all accesses |
10571 | * that the plane may generate whilst we perform load detection. | |
10572 | * We can not rely on the fbcon either being present (we get called | |
10573 | * during its initialisation to detect all boot displays, or it may | |
10574 | * not even exist) or that it is large enough to satisfy the | |
10575 | * requested mode. | |
10576 | */ | |
94352cf9 DV |
10577 | fb = mode_fits_in_fbdev(dev, mode); |
10578 | if (fb == NULL) { | |
d2dff872 | 10579 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 DV |
10580 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
10581 | old->release_fb = fb; | |
d2dff872 CW |
10582 | } else |
10583 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 10584 | if (IS_ERR(fb)) { |
d2dff872 | 10585 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
412b61d8 | 10586 | goto fail; |
79e53945 | 10587 | } |
79e53945 | 10588 | |
d3a40d1b ACO |
10589 | ret = intel_modeset_setup_plane_state(state, crtc, mode, fb, 0, 0); |
10590 | if (ret) | |
10591 | goto fail; | |
10592 | ||
8c7b5ccb ACO |
10593 | drm_mode_copy(&crtc_state->base.mode, mode); |
10594 | ||
74c090b1 | 10595 | if (drm_atomic_commit(state)) { |
6492711d | 10596 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
10597 | if (old->release_fb) |
10598 | old->release_fb->funcs->destroy(old->release_fb); | |
412b61d8 | 10599 | goto fail; |
79e53945 | 10600 | } |
9128b040 | 10601 | crtc->primary->crtc = crtc; |
7173188d | 10602 | |
79e53945 | 10603 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 10604 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
7173188d | 10605 | return true; |
412b61d8 | 10606 | |
ad3c558f | 10607 | fail: |
e5d958ef ACO |
10608 | drm_atomic_state_free(state); |
10609 | state = NULL; | |
83a57153 | 10610 | |
51fd371b RC |
10611 | if (ret == -EDEADLK) { |
10612 | drm_modeset_backoff(ctx); | |
10613 | goto retry; | |
10614 | } | |
10615 | ||
412b61d8 | 10616 | return false; |
79e53945 JB |
10617 | } |
10618 | ||
d2434ab7 | 10619 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
49172fee ACO |
10620 | struct intel_load_detect_pipe *old, |
10621 | struct drm_modeset_acquire_ctx *ctx) | |
79e53945 | 10622 | { |
83a57153 | 10623 | struct drm_device *dev = connector->dev; |
d2434ab7 DV |
10624 | struct intel_encoder *intel_encoder = |
10625 | intel_attached_encoder(connector); | |
4ef69c7a | 10626 | struct drm_encoder *encoder = &intel_encoder->base; |
7b24056b | 10627 | struct drm_crtc *crtc = encoder->crtc; |
412b61d8 | 10628 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
83a57153 | 10629 | struct drm_atomic_state *state; |
944b0c76 | 10630 | struct drm_connector_state *connector_state; |
4be07317 | 10631 | struct intel_crtc_state *crtc_state; |
d3a40d1b | 10632 | int ret; |
79e53945 | 10633 | |
d2dff872 | 10634 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
c23cc417 | 10635 | connector->base.id, connector->name, |
8e329a03 | 10636 | encoder->base.id, encoder->name); |
d2dff872 | 10637 | |
8261b191 | 10638 | if (old->load_detect_temp) { |
83a57153 | 10639 | state = drm_atomic_state_alloc(dev); |
944b0c76 ACO |
10640 | if (!state) |
10641 | goto fail; | |
83a57153 ACO |
10642 | |
10643 | state->acquire_ctx = ctx; | |
10644 | ||
944b0c76 ACO |
10645 | connector_state = drm_atomic_get_connector_state(state, connector); |
10646 | if (IS_ERR(connector_state)) | |
10647 | goto fail; | |
10648 | ||
4be07317 ACO |
10649 | crtc_state = intel_atomic_get_crtc_state(state, intel_crtc); |
10650 | if (IS_ERR(crtc_state)) | |
10651 | goto fail; | |
10652 | ||
944b0c76 ACO |
10653 | connector_state->best_encoder = NULL; |
10654 | connector_state->crtc = NULL; | |
10655 | ||
49d6fa21 | 10656 | crtc_state->base.enable = crtc_state->base.active = false; |
4be07317 | 10657 | |
d3a40d1b ACO |
10658 | ret = intel_modeset_setup_plane_state(state, crtc, NULL, NULL, |
10659 | 0, 0); | |
10660 | if (ret) | |
10661 | goto fail; | |
10662 | ||
74c090b1 | 10663 | ret = drm_atomic_commit(state); |
2bfb4627 ACO |
10664 | if (ret) |
10665 | goto fail; | |
d2dff872 | 10666 | |
36206361 DV |
10667 | if (old->release_fb) { |
10668 | drm_framebuffer_unregister_private(old->release_fb); | |
10669 | drm_framebuffer_unreference(old->release_fb); | |
10670 | } | |
d2dff872 | 10671 | |
0622a53c | 10672 | return; |
79e53945 JB |
10673 | } |
10674 | ||
c751ce4f | 10675 | /* Switch crtc and encoder back off if necessary */ |
24218aac DV |
10676 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
10677 | connector->funcs->dpms(connector, old->dpms_mode); | |
944b0c76 ACO |
10678 | |
10679 | return; | |
10680 | fail: | |
10681 | DRM_DEBUG_KMS("Couldn't release load detect pipe.\n"); | |
10682 | drm_atomic_state_free(state); | |
79e53945 JB |
10683 | } |
10684 | ||
da4a1efa | 10685 | static int i9xx_pll_refclk(struct drm_device *dev, |
5cec258b | 10686 | const struct intel_crtc_state *pipe_config) |
da4a1efa VS |
10687 | { |
10688 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10689 | u32 dpll = pipe_config->dpll_hw_state.dpll; | |
10690 | ||
10691 | if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN) | |
e91e941b | 10692 | return dev_priv->vbt.lvds_ssc_freq; |
da4a1efa VS |
10693 | else if (HAS_PCH_SPLIT(dev)) |
10694 | return 120000; | |
10695 | else if (!IS_GEN2(dev)) | |
10696 | return 96000; | |
10697 | else | |
10698 | return 48000; | |
10699 | } | |
10700 | ||
79e53945 | 10701 | /* Returns the clock of the currently programmed mode of the given pipe. */ |
f1f644dc | 10702 | static void i9xx_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 10703 | struct intel_crtc_state *pipe_config) |
79e53945 | 10704 | { |
f1f644dc | 10705 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 10706 | struct drm_i915_private *dev_priv = dev->dev_private; |
f1f644dc | 10707 | int pipe = pipe_config->cpu_transcoder; |
293623f7 | 10708 | u32 dpll = pipe_config->dpll_hw_state.dpll; |
79e53945 JB |
10709 | u32 fp; |
10710 | intel_clock_t clock; | |
dccbea3b | 10711 | int port_clock; |
da4a1efa | 10712 | int refclk = i9xx_pll_refclk(dev, pipe_config); |
79e53945 JB |
10713 | |
10714 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
293623f7 | 10715 | fp = pipe_config->dpll_hw_state.fp0; |
79e53945 | 10716 | else |
293623f7 | 10717 | fp = pipe_config->dpll_hw_state.fp1; |
79e53945 JB |
10718 | |
10719 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
10720 | if (IS_PINEVIEW(dev)) { |
10721 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
10722 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
10723 | } else { |
10724 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
10725 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
10726 | } | |
10727 | ||
a6c45cf0 | 10728 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
10729 | if (IS_PINEVIEW(dev)) |
10730 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
10731 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
10732 | else |
10733 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
10734 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
10735 | ||
10736 | switch (dpll & DPLL_MODE_MASK) { | |
10737 | case DPLLB_MODE_DAC_SERIAL: | |
10738 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
10739 | 5 : 10; | |
10740 | break; | |
10741 | case DPLLB_MODE_LVDS: | |
10742 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
10743 | 7 : 14; | |
10744 | break; | |
10745 | default: | |
28c97730 | 10746 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 | 10747 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
f1f644dc | 10748 | return; |
79e53945 JB |
10749 | } |
10750 | ||
ac58c3f0 | 10751 | if (IS_PINEVIEW(dev)) |
dccbea3b | 10752 | port_clock = pnv_calc_dpll_params(refclk, &clock); |
ac58c3f0 | 10753 | else |
dccbea3b | 10754 | port_clock = i9xx_calc_dpll_params(refclk, &clock); |
79e53945 | 10755 | } else { |
0fb58223 | 10756 | u32 lvds = IS_I830(dev) ? 0 : I915_READ(LVDS); |
b1c560d1 | 10757 | bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN); |
79e53945 JB |
10758 | |
10759 | if (is_lvds) { | |
10760 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
10761 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
b1c560d1 VS |
10762 | |
10763 | if (lvds & LVDS_CLKB_POWER_UP) | |
10764 | clock.p2 = 7; | |
10765 | else | |
10766 | clock.p2 = 14; | |
79e53945 JB |
10767 | } else { |
10768 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
10769 | clock.p1 = 2; | |
10770 | else { | |
10771 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
10772 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
10773 | } | |
10774 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
10775 | clock.p2 = 4; | |
10776 | else | |
10777 | clock.p2 = 2; | |
79e53945 | 10778 | } |
da4a1efa | 10779 | |
dccbea3b | 10780 | port_clock = i9xx_calc_dpll_params(refclk, &clock); |
79e53945 JB |
10781 | } |
10782 | ||
18442d08 VS |
10783 | /* |
10784 | * This value includes pixel_multiplier. We will use | |
241bfc38 | 10785 | * port_clock to compute adjusted_mode.crtc_clock in the |
18442d08 VS |
10786 | * encoder's get_config() function. |
10787 | */ | |
dccbea3b | 10788 | pipe_config->port_clock = port_clock; |
f1f644dc JB |
10789 | } |
10790 | ||
6878da05 VS |
10791 | int intel_dotclock_calculate(int link_freq, |
10792 | const struct intel_link_m_n *m_n) | |
f1f644dc | 10793 | { |
f1f644dc JB |
10794 | /* |
10795 | * The calculation for the data clock is: | |
1041a02f | 10796 | * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp |
f1f644dc | 10797 | * But we want to avoid losing precison if possible, so: |
1041a02f | 10798 | * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp)) |
f1f644dc JB |
10799 | * |
10800 | * and the link clock is simpler: | |
1041a02f | 10801 | * link_clock = (m * link_clock) / n |
f1f644dc JB |
10802 | */ |
10803 | ||
6878da05 VS |
10804 | if (!m_n->link_n) |
10805 | return 0; | |
f1f644dc | 10806 | |
6878da05 VS |
10807 | return div_u64((u64)m_n->link_m * link_freq, m_n->link_n); |
10808 | } | |
f1f644dc | 10809 | |
18442d08 | 10810 | static void ironlake_pch_clock_get(struct intel_crtc *crtc, |
5cec258b | 10811 | struct intel_crtc_state *pipe_config) |
6878da05 VS |
10812 | { |
10813 | struct drm_device *dev = crtc->base.dev; | |
79e53945 | 10814 | |
18442d08 VS |
10815 | /* read out port_clock from the DPLL */ |
10816 | i9xx_crtc_clock_get(crtc, pipe_config); | |
f1f644dc | 10817 | |
f1f644dc | 10818 | /* |
18442d08 | 10819 | * This value does not include pixel_multiplier. |
241bfc38 | 10820 | * We will check that port_clock and adjusted_mode.crtc_clock |
18442d08 VS |
10821 | * agree once we know their relationship in the encoder's |
10822 | * get_config() function. | |
79e53945 | 10823 | */ |
2d112de7 | 10824 | pipe_config->base.adjusted_mode.crtc_clock = |
18442d08 VS |
10825 | intel_dotclock_calculate(intel_fdi_link_freq(dev) * 10000, |
10826 | &pipe_config->fdi_m_n); | |
79e53945 JB |
10827 | } |
10828 | ||
10829 | /** Returns the currently programmed mode of the given pipe. */ | |
10830 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
10831 | struct drm_crtc *crtc) | |
10832 | { | |
548f245b | 10833 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 10834 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6e3c9717 | 10835 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
79e53945 | 10836 | struct drm_display_mode *mode; |
5cec258b | 10837 | struct intel_crtc_state pipe_config; |
fe2b8f9d PZ |
10838 | int htot = I915_READ(HTOTAL(cpu_transcoder)); |
10839 | int hsync = I915_READ(HSYNC(cpu_transcoder)); | |
10840 | int vtot = I915_READ(VTOTAL(cpu_transcoder)); | |
10841 | int vsync = I915_READ(VSYNC(cpu_transcoder)); | |
293623f7 | 10842 | enum pipe pipe = intel_crtc->pipe; |
79e53945 JB |
10843 | |
10844 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
10845 | if (!mode) | |
10846 | return NULL; | |
10847 | ||
f1f644dc JB |
10848 | /* |
10849 | * Construct a pipe_config sufficient for getting the clock info | |
10850 | * back out of crtc_clock_get. | |
10851 | * | |
10852 | * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need | |
10853 | * to use a real value here instead. | |
10854 | */ | |
293623f7 | 10855 | pipe_config.cpu_transcoder = (enum transcoder) pipe; |
f1f644dc | 10856 | pipe_config.pixel_multiplier = 1; |
293623f7 VS |
10857 | pipe_config.dpll_hw_state.dpll = I915_READ(DPLL(pipe)); |
10858 | pipe_config.dpll_hw_state.fp0 = I915_READ(FP0(pipe)); | |
10859 | pipe_config.dpll_hw_state.fp1 = I915_READ(FP1(pipe)); | |
f1f644dc JB |
10860 | i9xx_crtc_clock_get(intel_crtc, &pipe_config); |
10861 | ||
773ae034 | 10862 | mode->clock = pipe_config.port_clock / pipe_config.pixel_multiplier; |
79e53945 JB |
10863 | mode->hdisplay = (htot & 0xffff) + 1; |
10864 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
10865 | mode->hsync_start = (hsync & 0xffff) + 1; | |
10866 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
10867 | mode->vdisplay = (vtot & 0xffff) + 1; | |
10868 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
10869 | mode->vsync_start = (vsync & 0xffff) + 1; | |
10870 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
10871 | ||
10872 | drm_mode_set_name(mode); | |
79e53945 JB |
10873 | |
10874 | return mode; | |
10875 | } | |
10876 | ||
f047e395 CW |
10877 | void intel_mark_busy(struct drm_device *dev) |
10878 | { | |
c67a470b PZ |
10879 | struct drm_i915_private *dev_priv = dev->dev_private; |
10880 | ||
f62a0076 CW |
10881 | if (dev_priv->mm.busy) |
10882 | return; | |
10883 | ||
43694d69 | 10884 | intel_runtime_pm_get(dev_priv); |
c67a470b | 10885 | i915_update_gfx_val(dev_priv); |
43cf3bf0 CW |
10886 | if (INTEL_INFO(dev)->gen >= 6) |
10887 | gen6_rps_busy(dev_priv); | |
f62a0076 | 10888 | dev_priv->mm.busy = true; |
f047e395 CW |
10889 | } |
10890 | ||
10891 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 10892 | { |
c67a470b | 10893 | struct drm_i915_private *dev_priv = dev->dev_private; |
652c393a | 10894 | |
f62a0076 CW |
10895 | if (!dev_priv->mm.busy) |
10896 | return; | |
10897 | ||
10898 | dev_priv->mm.busy = false; | |
10899 | ||
3d13ef2e | 10900 | if (INTEL_INFO(dev)->gen >= 6) |
b29c19b6 | 10901 | gen6_rps_idle(dev->dev_private); |
bb4cdd53 | 10902 | |
43694d69 | 10903 | intel_runtime_pm_put(dev_priv); |
652c393a JB |
10904 | } |
10905 | ||
79e53945 JB |
10906 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
10907 | { | |
10908 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
10909 | struct drm_device *dev = crtc->dev; |
10910 | struct intel_unpin_work *work; | |
67e77c5a | 10911 | |
5e2d7afc | 10912 | spin_lock_irq(&dev->event_lock); |
67e77c5a DV |
10913 | work = intel_crtc->unpin_work; |
10914 | intel_crtc->unpin_work = NULL; | |
5e2d7afc | 10915 | spin_unlock_irq(&dev->event_lock); |
67e77c5a DV |
10916 | |
10917 | if (work) { | |
10918 | cancel_work_sync(&work->work); | |
10919 | kfree(work); | |
10920 | } | |
79e53945 JB |
10921 | |
10922 | drm_crtc_cleanup(crtc); | |
67e77c5a | 10923 | |
79e53945 JB |
10924 | kfree(intel_crtc); |
10925 | } | |
10926 | ||
6b95a207 KH |
10927 | static void intel_unpin_work_fn(struct work_struct *__work) |
10928 | { | |
10929 | struct intel_unpin_work *work = | |
10930 | container_of(__work, struct intel_unpin_work, work); | |
a9ff8714 VS |
10931 | struct intel_crtc *crtc = to_intel_crtc(work->crtc); |
10932 | struct drm_device *dev = crtc->base.dev; | |
10933 | struct drm_plane *primary = crtc->base.primary; | |
6b95a207 | 10934 | |
b4a98e57 | 10935 | mutex_lock(&dev->struct_mutex); |
a9ff8714 | 10936 | intel_unpin_fb_obj(work->old_fb, primary->state); |
05394f39 | 10937 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
d9e86c0e | 10938 | |
f06cc1b9 | 10939 | if (work->flip_queued_req) |
146d84f0 | 10940 | i915_gem_request_assign(&work->flip_queued_req, NULL); |
b4a98e57 CW |
10941 | mutex_unlock(&dev->struct_mutex); |
10942 | ||
a9ff8714 | 10943 | intel_frontbuffer_flip_complete(dev, to_intel_plane(primary)->frontbuffer_bit); |
89ed88ba | 10944 | drm_framebuffer_unreference(work->old_fb); |
f99d7069 | 10945 | |
a9ff8714 VS |
10946 | BUG_ON(atomic_read(&crtc->unpin_work_count) == 0); |
10947 | atomic_dec(&crtc->unpin_work_count); | |
b4a98e57 | 10948 | |
6b95a207 KH |
10949 | kfree(work); |
10950 | } | |
10951 | ||
1afe3e9d | 10952 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 10953 | struct drm_crtc *crtc) |
6b95a207 | 10954 | { |
6b95a207 KH |
10955 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
10956 | struct intel_unpin_work *work; | |
6b95a207 KH |
10957 | unsigned long flags; |
10958 | ||
10959 | /* Ignore early vblank irqs */ | |
10960 | if (intel_crtc == NULL) | |
10961 | return; | |
10962 | ||
f326038a DV |
10963 | /* |
10964 | * This is called both by irq handlers and the reset code (to complete | |
10965 | * lost pageflips) so needs the full irqsave spinlocks. | |
10966 | */ | |
6b95a207 KH |
10967 | spin_lock_irqsave(&dev->event_lock, flags); |
10968 | work = intel_crtc->unpin_work; | |
e7d841ca CW |
10969 | |
10970 | /* Ensure we don't miss a work->pending update ... */ | |
10971 | smp_rmb(); | |
10972 | ||
10973 | if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) { | |
6b95a207 KH |
10974 | spin_unlock_irqrestore(&dev->event_lock, flags); |
10975 | return; | |
10976 | } | |
10977 | ||
d6bbafa1 | 10978 | page_flip_completed(intel_crtc); |
0af7e4df | 10979 | |
6b95a207 | 10980 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6b95a207 KH |
10981 | } |
10982 | ||
1afe3e9d JB |
10983 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
10984 | { | |
fbee40df | 10985 | struct drm_i915_private *dev_priv = dev->dev_private; |
1afe3e9d JB |
10986 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
10987 | ||
49b14a5c | 10988 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
10989 | } |
10990 | ||
10991 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
10992 | { | |
fbee40df | 10993 | struct drm_i915_private *dev_priv = dev->dev_private; |
1afe3e9d JB |
10994 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; |
10995 | ||
49b14a5c | 10996 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
10997 | } |
10998 | ||
75f7f3ec VS |
10999 | /* Is 'a' after or equal to 'b'? */ |
11000 | static bool g4x_flip_count_after_eq(u32 a, u32 b) | |
11001 | { | |
11002 | return !((a - b) & 0x80000000); | |
11003 | } | |
11004 | ||
11005 | static bool page_flip_finished(struct intel_crtc *crtc) | |
11006 | { | |
11007 | struct drm_device *dev = crtc->base.dev; | |
11008 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11009 | ||
bdfa7542 VS |
11010 | if (i915_reset_in_progress(&dev_priv->gpu_error) || |
11011 | crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) | |
11012 | return true; | |
11013 | ||
75f7f3ec VS |
11014 | /* |
11015 | * The relevant registers doen't exist on pre-ctg. | |
11016 | * As the flip done interrupt doesn't trigger for mmio | |
11017 | * flips on gmch platforms, a flip count check isn't | |
11018 | * really needed there. But since ctg has the registers, | |
11019 | * include it in the check anyway. | |
11020 | */ | |
11021 | if (INTEL_INFO(dev)->gen < 5 && !IS_G4X(dev)) | |
11022 | return true; | |
11023 | ||
11024 | /* | |
11025 | * A DSPSURFLIVE check isn't enough in case the mmio and CS flips | |
11026 | * used the same base address. In that case the mmio flip might | |
11027 | * have completed, but the CS hasn't even executed the flip yet. | |
11028 | * | |
11029 | * A flip count check isn't enough as the CS might have updated | |
11030 | * the base address just after start of vblank, but before we | |
11031 | * managed to process the interrupt. This means we'd complete the | |
11032 | * CS flip too soon. | |
11033 | * | |
11034 | * Combining both checks should get us a good enough result. It may | |
11035 | * still happen that the CS flip has been executed, but has not | |
11036 | * yet actually completed. But in case the base address is the same | |
11037 | * anyway, we don't really care. | |
11038 | */ | |
11039 | return (I915_READ(DSPSURFLIVE(crtc->plane)) & ~0xfff) == | |
11040 | crtc->unpin_work->gtt_offset && | |
fd8f507c | 11041 | g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_G4X(crtc->pipe)), |
75f7f3ec VS |
11042 | crtc->unpin_work->flip_count); |
11043 | } | |
11044 | ||
6b95a207 KH |
11045 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
11046 | { | |
fbee40df | 11047 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
11048 | struct intel_crtc *intel_crtc = |
11049 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
11050 | unsigned long flags; | |
11051 | ||
f326038a DV |
11052 | |
11053 | /* | |
11054 | * This is called both by irq handlers and the reset code (to complete | |
11055 | * lost pageflips) so needs the full irqsave spinlocks. | |
11056 | * | |
11057 | * NB: An MMIO update of the plane base pointer will also | |
e7d841ca CW |
11058 | * generate a page-flip completion irq, i.e. every modeset |
11059 | * is also accompanied by a spurious intel_prepare_page_flip(). | |
11060 | */ | |
6b95a207 | 11061 | spin_lock_irqsave(&dev->event_lock, flags); |
75f7f3ec | 11062 | if (intel_crtc->unpin_work && page_flip_finished(intel_crtc)) |
e7d841ca | 11063 | atomic_inc_not_zero(&intel_crtc->unpin_work->pending); |
6b95a207 KH |
11064 | spin_unlock_irqrestore(&dev->event_lock, flags); |
11065 | } | |
11066 | ||
6042639c | 11067 | static inline void intel_mark_page_flip_active(struct intel_unpin_work *work) |
e7d841ca CW |
11068 | { |
11069 | /* Ensure that the work item is consistent when activating it ... */ | |
11070 | smp_wmb(); | |
6042639c | 11071 | atomic_set(&work->pending, INTEL_FLIP_PENDING); |
e7d841ca CW |
11072 | /* and that it is marked active as soon as the irq could fire. */ |
11073 | smp_wmb(); | |
11074 | } | |
11075 | ||
8c9f3aaf JB |
11076 | static int intel_gen2_queue_flip(struct drm_device *dev, |
11077 | struct drm_crtc *crtc, | |
11078 | struct drm_framebuffer *fb, | |
ed8d1975 | 11079 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11080 | struct drm_i915_gem_request *req, |
ed8d1975 | 11081 | uint32_t flags) |
8c9f3aaf | 11082 | { |
6258fbe2 | 11083 | struct intel_engine_cs *ring = req->ring; |
8c9f3aaf | 11084 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8c9f3aaf JB |
11085 | u32 flip_mask; |
11086 | int ret; | |
11087 | ||
5fb9de1a | 11088 | ret = intel_ring_begin(req, 6); |
8c9f3aaf | 11089 | if (ret) |
4fa62c89 | 11090 | return ret; |
8c9f3aaf JB |
11091 | |
11092 | /* Can't queue multiple flips, so wait for the previous | |
11093 | * one to finish before executing the next. | |
11094 | */ | |
11095 | if (intel_crtc->plane) | |
11096 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
11097 | else | |
11098 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
11099 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
11100 | intel_ring_emit(ring, MI_NOOP); | |
11101 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
11102 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
11103 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 11104 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
6d90c952 | 11105 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
e7d841ca | 11106 | |
6042639c | 11107 | intel_mark_page_flip_active(intel_crtc->unpin_work); |
83d4092b | 11108 | return 0; |
8c9f3aaf JB |
11109 | } |
11110 | ||
11111 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
11112 | struct drm_crtc *crtc, | |
11113 | struct drm_framebuffer *fb, | |
ed8d1975 | 11114 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11115 | struct drm_i915_gem_request *req, |
ed8d1975 | 11116 | uint32_t flags) |
8c9f3aaf | 11117 | { |
6258fbe2 | 11118 | struct intel_engine_cs *ring = req->ring; |
8c9f3aaf | 11119 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8c9f3aaf JB |
11120 | u32 flip_mask; |
11121 | int ret; | |
11122 | ||
5fb9de1a | 11123 | ret = intel_ring_begin(req, 6); |
8c9f3aaf | 11124 | if (ret) |
4fa62c89 | 11125 | return ret; |
8c9f3aaf JB |
11126 | |
11127 | if (intel_crtc->plane) | |
11128 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
11129 | else | |
11130 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
11131 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
11132 | intel_ring_emit(ring, MI_NOOP); | |
11133 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
11134 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
11135 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 11136 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
6d90c952 DV |
11137 | intel_ring_emit(ring, MI_NOOP); |
11138 | ||
6042639c | 11139 | intel_mark_page_flip_active(intel_crtc->unpin_work); |
83d4092b | 11140 | return 0; |
8c9f3aaf JB |
11141 | } |
11142 | ||
11143 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
11144 | struct drm_crtc *crtc, | |
11145 | struct drm_framebuffer *fb, | |
ed8d1975 | 11146 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11147 | struct drm_i915_gem_request *req, |
ed8d1975 | 11148 | uint32_t flags) |
8c9f3aaf | 11149 | { |
6258fbe2 | 11150 | struct intel_engine_cs *ring = req->ring; |
8c9f3aaf JB |
11151 | struct drm_i915_private *dev_priv = dev->dev_private; |
11152 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11153 | uint32_t pf, pipesrc; | |
11154 | int ret; | |
11155 | ||
5fb9de1a | 11156 | ret = intel_ring_begin(req, 4); |
8c9f3aaf | 11157 | if (ret) |
4fa62c89 | 11158 | return ret; |
8c9f3aaf JB |
11159 | |
11160 | /* i965+ uses the linear or tiled offsets from the | |
11161 | * Display Registers (which do not change across a page-flip) | |
11162 | * so we need only reprogram the base address. | |
11163 | */ | |
6d90c952 DV |
11164 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
11165 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
11166 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 11167 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset | |
c2c75131 | 11168 | obj->tiling_mode); |
8c9f3aaf JB |
11169 | |
11170 | /* XXX Enabling the panel-fitter across page-flip is so far | |
11171 | * untested on non-native modes, so ignore it for now. | |
11172 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
11173 | */ | |
11174 | pf = 0; | |
11175 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 | 11176 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca | 11177 | |
6042639c | 11178 | intel_mark_page_flip_active(intel_crtc->unpin_work); |
83d4092b | 11179 | return 0; |
8c9f3aaf JB |
11180 | } |
11181 | ||
11182 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
11183 | struct drm_crtc *crtc, | |
11184 | struct drm_framebuffer *fb, | |
ed8d1975 | 11185 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11186 | struct drm_i915_gem_request *req, |
ed8d1975 | 11187 | uint32_t flags) |
8c9f3aaf | 11188 | { |
6258fbe2 | 11189 | struct intel_engine_cs *ring = req->ring; |
8c9f3aaf JB |
11190 | struct drm_i915_private *dev_priv = dev->dev_private; |
11191 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11192 | uint32_t pf, pipesrc; | |
11193 | int ret; | |
11194 | ||
5fb9de1a | 11195 | ret = intel_ring_begin(req, 4); |
8c9f3aaf | 11196 | if (ret) |
4fa62c89 | 11197 | return ret; |
8c9f3aaf | 11198 | |
6d90c952 DV |
11199 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
11200 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
11201 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
75f7f3ec | 11202 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
8c9f3aaf | 11203 | |
dc257cf1 DV |
11204 | /* Contrary to the suggestions in the documentation, |
11205 | * "Enable Panel Fitter" does not seem to be required when page | |
11206 | * flipping with a non-native mode, and worse causes a normal | |
11207 | * modeset to fail. | |
11208 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
11209 | */ | |
11210 | pf = 0; | |
8c9f3aaf | 11211 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 | 11212 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca | 11213 | |
6042639c | 11214 | intel_mark_page_flip_active(intel_crtc->unpin_work); |
83d4092b | 11215 | return 0; |
8c9f3aaf JB |
11216 | } |
11217 | ||
7c9017e5 JB |
11218 | static int intel_gen7_queue_flip(struct drm_device *dev, |
11219 | struct drm_crtc *crtc, | |
11220 | struct drm_framebuffer *fb, | |
ed8d1975 | 11221 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11222 | struct drm_i915_gem_request *req, |
ed8d1975 | 11223 | uint32_t flags) |
7c9017e5 | 11224 | { |
6258fbe2 | 11225 | struct intel_engine_cs *ring = req->ring; |
7c9017e5 | 11226 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
cb05d8de | 11227 | uint32_t plane_bit = 0; |
ffe74d75 CW |
11228 | int len, ret; |
11229 | ||
eba905b2 | 11230 | switch (intel_crtc->plane) { |
cb05d8de DV |
11231 | case PLANE_A: |
11232 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
11233 | break; | |
11234 | case PLANE_B: | |
11235 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
11236 | break; | |
11237 | case PLANE_C: | |
11238 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
11239 | break; | |
11240 | default: | |
11241 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
4fa62c89 | 11242 | return -ENODEV; |
cb05d8de DV |
11243 | } |
11244 | ||
ffe74d75 | 11245 | len = 4; |
f476828a | 11246 | if (ring->id == RCS) { |
ffe74d75 | 11247 | len += 6; |
f476828a DL |
11248 | /* |
11249 | * On Gen 8, SRM is now taking an extra dword to accommodate | |
11250 | * 48bits addresses, and we need a NOOP for the batch size to | |
11251 | * stay even. | |
11252 | */ | |
11253 | if (IS_GEN8(dev)) | |
11254 | len += 2; | |
11255 | } | |
ffe74d75 | 11256 | |
f66fab8e VS |
11257 | /* |
11258 | * BSpec MI_DISPLAY_FLIP for IVB: | |
11259 | * "The full packet must be contained within the same cache line." | |
11260 | * | |
11261 | * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same | |
11262 | * cacheline, if we ever start emitting more commands before | |
11263 | * the MI_DISPLAY_FLIP we may need to first emit everything else, | |
11264 | * then do the cacheline alignment, and finally emit the | |
11265 | * MI_DISPLAY_FLIP. | |
11266 | */ | |
bba09b12 | 11267 | ret = intel_ring_cacheline_align(req); |
f66fab8e | 11268 | if (ret) |
4fa62c89 | 11269 | return ret; |
f66fab8e | 11270 | |
5fb9de1a | 11271 | ret = intel_ring_begin(req, len); |
7c9017e5 | 11272 | if (ret) |
4fa62c89 | 11273 | return ret; |
7c9017e5 | 11274 | |
ffe74d75 CW |
11275 | /* Unmask the flip-done completion message. Note that the bspec says that |
11276 | * we should do this for both the BCS and RCS, and that we must not unmask | |
11277 | * more than one flip event at any time (or ensure that one flip message | |
11278 | * can be sent by waiting for flip-done prior to queueing new flips). | |
11279 | * Experimentation says that BCS works despite DERRMR masking all | |
11280 | * flip-done completion events and that unmasking all planes at once | |
11281 | * for the RCS also doesn't appear to drop events. Setting the DERRMR | |
11282 | * to zero does lead to lockups within MI_DISPLAY_FLIP. | |
11283 | */ | |
11284 | if (ring->id == RCS) { | |
11285 | intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); | |
f92a9162 | 11286 | intel_ring_emit_reg(ring, DERRMR); |
ffe74d75 CW |
11287 | intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE | |
11288 | DERRMR_PIPEB_PRI_FLIP_DONE | | |
11289 | DERRMR_PIPEC_PRI_FLIP_DONE)); | |
f476828a | 11290 | if (IS_GEN8(dev)) |
f1afe24f | 11291 | intel_ring_emit(ring, MI_STORE_REGISTER_MEM_GEN8 | |
f476828a DL |
11292 | MI_SRM_LRM_GLOBAL_GTT); |
11293 | else | |
f1afe24f | 11294 | intel_ring_emit(ring, MI_STORE_REGISTER_MEM | |
f476828a | 11295 | MI_SRM_LRM_GLOBAL_GTT); |
f92a9162 | 11296 | intel_ring_emit_reg(ring, DERRMR); |
ffe74d75 | 11297 | intel_ring_emit(ring, ring->scratch.gtt_offset + 256); |
f476828a DL |
11298 | if (IS_GEN8(dev)) { |
11299 | intel_ring_emit(ring, 0); | |
11300 | intel_ring_emit(ring, MI_NOOP); | |
11301 | } | |
ffe74d75 CW |
11302 | } |
11303 | ||
cb05d8de | 11304 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 11305 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
75f7f3ec | 11306 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
7c9017e5 | 11307 | intel_ring_emit(ring, (MI_NOOP)); |
e7d841ca | 11308 | |
6042639c | 11309 | intel_mark_page_flip_active(intel_crtc->unpin_work); |
83d4092b | 11310 | return 0; |
7c9017e5 JB |
11311 | } |
11312 | ||
84c33a64 SG |
11313 | static bool use_mmio_flip(struct intel_engine_cs *ring, |
11314 | struct drm_i915_gem_object *obj) | |
11315 | { | |
11316 | /* | |
11317 | * This is not being used for older platforms, because | |
11318 | * non-availability of flip done interrupt forces us to use | |
11319 | * CS flips. Older platforms derive flip done using some clever | |
11320 | * tricks involving the flip_pending status bits and vblank irqs. | |
11321 | * So using MMIO flips there would disrupt this mechanism. | |
11322 | */ | |
11323 | ||
8e09bf83 CW |
11324 | if (ring == NULL) |
11325 | return true; | |
11326 | ||
84c33a64 SG |
11327 | if (INTEL_INFO(ring->dev)->gen < 5) |
11328 | return false; | |
11329 | ||
11330 | if (i915.use_mmio_flip < 0) | |
11331 | return false; | |
11332 | else if (i915.use_mmio_flip > 0) | |
11333 | return true; | |
14bf993e OM |
11334 | else if (i915.enable_execlists) |
11335 | return true; | |
fd8e058a AG |
11336 | else if (obj->base.dma_buf && |
11337 | !reservation_object_test_signaled_rcu(obj->base.dma_buf->resv, | |
11338 | false)) | |
11339 | return true; | |
84c33a64 | 11340 | else |
b4716185 | 11341 | return ring != i915_gem_request_get_ring(obj->last_write_req); |
84c33a64 SG |
11342 | } |
11343 | ||
6042639c | 11344 | static void skl_do_mmio_flip(struct intel_crtc *intel_crtc, |
86efe24a | 11345 | unsigned int rotation, |
6042639c | 11346 | struct intel_unpin_work *work) |
ff944564 DL |
11347 | { |
11348 | struct drm_device *dev = intel_crtc->base.dev; | |
11349 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11350 | struct drm_framebuffer *fb = intel_crtc->base.primary->fb; | |
ff944564 | 11351 | const enum pipe pipe = intel_crtc->pipe; |
86efe24a | 11352 | u32 ctl, stride, tile_height; |
ff944564 DL |
11353 | |
11354 | ctl = I915_READ(PLANE_CTL(pipe, 0)); | |
11355 | ctl &= ~PLANE_CTL_TILED_MASK; | |
2ebef630 TU |
11356 | switch (fb->modifier[0]) { |
11357 | case DRM_FORMAT_MOD_NONE: | |
11358 | break; | |
11359 | case I915_FORMAT_MOD_X_TILED: | |
ff944564 | 11360 | ctl |= PLANE_CTL_TILED_X; |
2ebef630 TU |
11361 | break; |
11362 | case I915_FORMAT_MOD_Y_TILED: | |
11363 | ctl |= PLANE_CTL_TILED_Y; | |
11364 | break; | |
11365 | case I915_FORMAT_MOD_Yf_TILED: | |
11366 | ctl |= PLANE_CTL_TILED_YF; | |
11367 | break; | |
11368 | default: | |
11369 | MISSING_CASE(fb->modifier[0]); | |
11370 | } | |
ff944564 DL |
11371 | |
11372 | /* | |
11373 | * The stride is either expressed as a multiple of 64 bytes chunks for | |
11374 | * linear buffers or in number of tiles for tiled buffers. | |
11375 | */ | |
86efe24a TU |
11376 | if (intel_rotation_90_or_270(rotation)) { |
11377 | /* stride = Surface height in tiles */ | |
11378 | tile_height = intel_tile_height(dev, fb->pixel_format, | |
11379 | fb->modifier[0], 0); | |
11380 | stride = DIV_ROUND_UP(fb->height, tile_height); | |
11381 | } else { | |
11382 | stride = fb->pitches[0] / | |
11383 | intel_fb_stride_alignment(dev, fb->modifier[0], | |
11384 | fb->pixel_format); | |
11385 | } | |
ff944564 DL |
11386 | |
11387 | /* | |
11388 | * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on | |
11389 | * PLANE_SURF updates, the update is then guaranteed to be atomic. | |
11390 | */ | |
11391 | I915_WRITE(PLANE_CTL(pipe, 0), ctl); | |
11392 | I915_WRITE(PLANE_STRIDE(pipe, 0), stride); | |
11393 | ||
6042639c | 11394 | I915_WRITE(PLANE_SURF(pipe, 0), work->gtt_offset); |
ff944564 DL |
11395 | POSTING_READ(PLANE_SURF(pipe, 0)); |
11396 | } | |
11397 | ||
6042639c CW |
11398 | static void ilk_do_mmio_flip(struct intel_crtc *intel_crtc, |
11399 | struct intel_unpin_work *work) | |
84c33a64 SG |
11400 | { |
11401 | struct drm_device *dev = intel_crtc->base.dev; | |
11402 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11403 | struct intel_framebuffer *intel_fb = | |
11404 | to_intel_framebuffer(intel_crtc->base.primary->fb); | |
11405 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
f0f59a00 | 11406 | i915_reg_t reg = DSPCNTR(intel_crtc->plane); |
84c33a64 | 11407 | u32 dspcntr; |
84c33a64 | 11408 | |
84c33a64 SG |
11409 | dspcntr = I915_READ(reg); |
11410 | ||
c5d97472 DL |
11411 | if (obj->tiling_mode != I915_TILING_NONE) |
11412 | dspcntr |= DISPPLANE_TILED; | |
11413 | else | |
11414 | dspcntr &= ~DISPPLANE_TILED; | |
11415 | ||
84c33a64 SG |
11416 | I915_WRITE(reg, dspcntr); |
11417 | ||
6042639c | 11418 | I915_WRITE(DSPSURF(intel_crtc->plane), work->gtt_offset); |
84c33a64 | 11419 | POSTING_READ(DSPSURF(intel_crtc->plane)); |
ff944564 DL |
11420 | } |
11421 | ||
11422 | /* | |
11423 | * XXX: This is the temporary way to update the plane registers until we get | |
11424 | * around to using the usual plane update functions for MMIO flips | |
11425 | */ | |
6042639c | 11426 | static void intel_do_mmio_flip(struct intel_mmio_flip *mmio_flip) |
ff944564 | 11427 | { |
6042639c CW |
11428 | struct intel_crtc *crtc = mmio_flip->crtc; |
11429 | struct intel_unpin_work *work; | |
11430 | ||
11431 | spin_lock_irq(&crtc->base.dev->event_lock); | |
11432 | work = crtc->unpin_work; | |
11433 | spin_unlock_irq(&crtc->base.dev->event_lock); | |
11434 | if (work == NULL) | |
11435 | return; | |
ff944564 | 11436 | |
6042639c | 11437 | intel_mark_page_flip_active(work); |
ff944564 | 11438 | |
6042639c | 11439 | intel_pipe_update_start(crtc); |
ff944564 | 11440 | |
6042639c | 11441 | if (INTEL_INFO(mmio_flip->i915)->gen >= 9) |
86efe24a | 11442 | skl_do_mmio_flip(crtc, mmio_flip->rotation, work); |
ff944564 DL |
11443 | else |
11444 | /* use_mmio_flip() retricts MMIO flips to ilk+ */ | |
6042639c | 11445 | ilk_do_mmio_flip(crtc, work); |
ff944564 | 11446 | |
6042639c | 11447 | intel_pipe_update_end(crtc); |
84c33a64 SG |
11448 | } |
11449 | ||
9362c7c5 | 11450 | static void intel_mmio_flip_work_func(struct work_struct *work) |
84c33a64 | 11451 | { |
b2cfe0ab CW |
11452 | struct intel_mmio_flip *mmio_flip = |
11453 | container_of(work, struct intel_mmio_flip, work); | |
fd8e058a AG |
11454 | struct intel_framebuffer *intel_fb = |
11455 | to_intel_framebuffer(mmio_flip->crtc->base.primary->fb); | |
11456 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
84c33a64 | 11457 | |
6042639c | 11458 | if (mmio_flip->req) { |
eed29a5b | 11459 | WARN_ON(__i915_wait_request(mmio_flip->req, |
b2cfe0ab | 11460 | mmio_flip->crtc->reset_counter, |
bcafc4e3 CW |
11461 | false, NULL, |
11462 | &mmio_flip->i915->rps.mmioflips)); | |
6042639c CW |
11463 | i915_gem_request_unreference__unlocked(mmio_flip->req); |
11464 | } | |
84c33a64 | 11465 | |
fd8e058a AG |
11466 | /* For framebuffer backed by dmabuf, wait for fence */ |
11467 | if (obj->base.dma_buf) | |
11468 | WARN_ON(reservation_object_wait_timeout_rcu(obj->base.dma_buf->resv, | |
11469 | false, false, | |
11470 | MAX_SCHEDULE_TIMEOUT) < 0); | |
11471 | ||
6042639c | 11472 | intel_do_mmio_flip(mmio_flip); |
b2cfe0ab | 11473 | kfree(mmio_flip); |
84c33a64 SG |
11474 | } |
11475 | ||
11476 | static int intel_queue_mmio_flip(struct drm_device *dev, | |
11477 | struct drm_crtc *crtc, | |
86efe24a | 11478 | struct drm_i915_gem_object *obj) |
84c33a64 | 11479 | { |
b2cfe0ab CW |
11480 | struct intel_mmio_flip *mmio_flip; |
11481 | ||
11482 | mmio_flip = kmalloc(sizeof(*mmio_flip), GFP_KERNEL); | |
11483 | if (mmio_flip == NULL) | |
11484 | return -ENOMEM; | |
84c33a64 | 11485 | |
bcafc4e3 | 11486 | mmio_flip->i915 = to_i915(dev); |
eed29a5b | 11487 | mmio_flip->req = i915_gem_request_reference(obj->last_write_req); |
b2cfe0ab | 11488 | mmio_flip->crtc = to_intel_crtc(crtc); |
86efe24a | 11489 | mmio_flip->rotation = crtc->primary->state->rotation; |
536f5b5e | 11490 | |
b2cfe0ab CW |
11491 | INIT_WORK(&mmio_flip->work, intel_mmio_flip_work_func); |
11492 | schedule_work(&mmio_flip->work); | |
84c33a64 | 11493 | |
84c33a64 SG |
11494 | return 0; |
11495 | } | |
11496 | ||
8c9f3aaf JB |
11497 | static int intel_default_queue_flip(struct drm_device *dev, |
11498 | struct drm_crtc *crtc, | |
11499 | struct drm_framebuffer *fb, | |
ed8d1975 | 11500 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11501 | struct drm_i915_gem_request *req, |
ed8d1975 | 11502 | uint32_t flags) |
8c9f3aaf JB |
11503 | { |
11504 | return -ENODEV; | |
11505 | } | |
11506 | ||
d6bbafa1 CW |
11507 | static bool __intel_pageflip_stall_check(struct drm_device *dev, |
11508 | struct drm_crtc *crtc) | |
11509 | { | |
11510 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11511 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11512 | struct intel_unpin_work *work = intel_crtc->unpin_work; | |
11513 | u32 addr; | |
11514 | ||
11515 | if (atomic_read(&work->pending) >= INTEL_FLIP_COMPLETE) | |
11516 | return true; | |
11517 | ||
908565c2 CW |
11518 | if (atomic_read(&work->pending) < INTEL_FLIP_PENDING) |
11519 | return false; | |
11520 | ||
d6bbafa1 CW |
11521 | if (!work->enable_stall_check) |
11522 | return false; | |
11523 | ||
11524 | if (work->flip_ready_vblank == 0) { | |
3a8a946e DV |
11525 | if (work->flip_queued_req && |
11526 | !i915_gem_request_completed(work->flip_queued_req, true)) | |
d6bbafa1 CW |
11527 | return false; |
11528 | ||
1e3feefd | 11529 | work->flip_ready_vblank = drm_crtc_vblank_count(crtc); |
d6bbafa1 CW |
11530 | } |
11531 | ||
1e3feefd | 11532 | if (drm_crtc_vblank_count(crtc) - work->flip_ready_vblank < 3) |
d6bbafa1 CW |
11533 | return false; |
11534 | ||
11535 | /* Potential stall - if we see that the flip has happened, | |
11536 | * assume a missed interrupt. */ | |
11537 | if (INTEL_INFO(dev)->gen >= 4) | |
11538 | addr = I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc->plane))); | |
11539 | else | |
11540 | addr = I915_READ(DSPADDR(intel_crtc->plane)); | |
11541 | ||
11542 | /* There is a potential issue here with a false positive after a flip | |
11543 | * to the same address. We could address this by checking for a | |
11544 | * non-incrementing frame counter. | |
11545 | */ | |
11546 | return addr == work->gtt_offset; | |
11547 | } | |
11548 | ||
11549 | void intel_check_page_flip(struct drm_device *dev, int pipe) | |
11550 | { | |
11551 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11552 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
11553 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6ad790c0 | 11554 | struct intel_unpin_work *work; |
f326038a | 11555 | |
6c51d46f | 11556 | WARN_ON(!in_interrupt()); |
d6bbafa1 CW |
11557 | |
11558 | if (crtc == NULL) | |
11559 | return; | |
11560 | ||
f326038a | 11561 | spin_lock(&dev->event_lock); |
6ad790c0 CW |
11562 | work = intel_crtc->unpin_work; |
11563 | if (work != NULL && __intel_pageflip_stall_check(dev, crtc)) { | |
d6bbafa1 | 11564 | WARN_ONCE(1, "Kicking stuck page flip: queued at %d, now %d\n", |
6ad790c0 | 11565 | work->flip_queued_vblank, drm_vblank_count(dev, pipe)); |
d6bbafa1 | 11566 | page_flip_completed(intel_crtc); |
6ad790c0 | 11567 | work = NULL; |
d6bbafa1 | 11568 | } |
6ad790c0 CW |
11569 | if (work != NULL && |
11570 | drm_vblank_count(dev, pipe) - work->flip_queued_vblank > 1) | |
11571 | intel_queue_rps_boost_for_request(dev, work->flip_queued_req); | |
f326038a | 11572 | spin_unlock(&dev->event_lock); |
d6bbafa1 CW |
11573 | } |
11574 | ||
6b95a207 KH |
11575 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
11576 | struct drm_framebuffer *fb, | |
ed8d1975 KP |
11577 | struct drm_pending_vblank_event *event, |
11578 | uint32_t page_flip_flags) | |
6b95a207 KH |
11579 | { |
11580 | struct drm_device *dev = crtc->dev; | |
11581 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f4510a27 | 11582 | struct drm_framebuffer *old_fb = crtc->primary->fb; |
2ff8fde1 | 11583 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
6b95a207 | 11584 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
455a6808 | 11585 | struct drm_plane *primary = crtc->primary; |
a071fa00 | 11586 | enum pipe pipe = intel_crtc->pipe; |
6b95a207 | 11587 | struct intel_unpin_work *work; |
a4872ba6 | 11588 | struct intel_engine_cs *ring; |
cf5d8a46 | 11589 | bool mmio_flip; |
91af127f | 11590 | struct drm_i915_gem_request *request = NULL; |
52e68630 | 11591 | int ret; |
6b95a207 | 11592 | |
2ff8fde1 MR |
11593 | /* |
11594 | * drm_mode_page_flip_ioctl() should already catch this, but double | |
11595 | * check to be safe. In the future we may enable pageflipping from | |
11596 | * a disabled primary plane. | |
11597 | */ | |
11598 | if (WARN_ON(intel_fb_obj(old_fb) == NULL)) | |
11599 | return -EBUSY; | |
11600 | ||
e6a595d2 | 11601 | /* Can't change pixel format via MI display flips. */ |
f4510a27 | 11602 | if (fb->pixel_format != crtc->primary->fb->pixel_format) |
e6a595d2 VS |
11603 | return -EINVAL; |
11604 | ||
11605 | /* | |
11606 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
11607 | * Note that pitch changes could also affect these register. | |
11608 | */ | |
11609 | if (INTEL_INFO(dev)->gen > 3 && | |
f4510a27 MR |
11610 | (fb->offsets[0] != crtc->primary->fb->offsets[0] || |
11611 | fb->pitches[0] != crtc->primary->fb->pitches[0])) | |
e6a595d2 VS |
11612 | return -EINVAL; |
11613 | ||
f900db47 CW |
11614 | if (i915_terminally_wedged(&dev_priv->gpu_error)) |
11615 | goto out_hang; | |
11616 | ||
b14c5679 | 11617 | work = kzalloc(sizeof(*work), GFP_KERNEL); |
6b95a207 KH |
11618 | if (work == NULL) |
11619 | return -ENOMEM; | |
11620 | ||
6b95a207 | 11621 | work->event = event; |
b4a98e57 | 11622 | work->crtc = crtc; |
ab8d6675 | 11623 | work->old_fb = old_fb; |
6b95a207 KH |
11624 | INIT_WORK(&work->work, intel_unpin_work_fn); |
11625 | ||
87b6b101 | 11626 | ret = drm_crtc_vblank_get(crtc); |
7317c75e JB |
11627 | if (ret) |
11628 | goto free_work; | |
11629 | ||
6b95a207 | 11630 | /* We borrow the event spin lock for protecting unpin_work */ |
5e2d7afc | 11631 | spin_lock_irq(&dev->event_lock); |
6b95a207 | 11632 | if (intel_crtc->unpin_work) { |
d6bbafa1 CW |
11633 | /* Before declaring the flip queue wedged, check if |
11634 | * the hardware completed the operation behind our backs. | |
11635 | */ | |
11636 | if (__intel_pageflip_stall_check(dev, crtc)) { | |
11637 | DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n"); | |
11638 | page_flip_completed(intel_crtc); | |
11639 | } else { | |
11640 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
5e2d7afc | 11641 | spin_unlock_irq(&dev->event_lock); |
468f0b44 | 11642 | |
d6bbafa1 CW |
11643 | drm_crtc_vblank_put(crtc); |
11644 | kfree(work); | |
11645 | return -EBUSY; | |
11646 | } | |
6b95a207 KH |
11647 | } |
11648 | intel_crtc->unpin_work = work; | |
5e2d7afc | 11649 | spin_unlock_irq(&dev->event_lock); |
6b95a207 | 11650 | |
b4a98e57 CW |
11651 | if (atomic_read(&intel_crtc->unpin_work_count) >= 2) |
11652 | flush_workqueue(dev_priv->wq); | |
11653 | ||
75dfca80 | 11654 | /* Reference the objects for the scheduled work. */ |
ab8d6675 | 11655 | drm_framebuffer_reference(work->old_fb); |
05394f39 | 11656 | drm_gem_object_reference(&obj->base); |
6b95a207 | 11657 | |
f4510a27 | 11658 | crtc->primary->fb = fb; |
afd65eb4 | 11659 | update_state_fb(crtc->primary); |
1ed1f968 | 11660 | |
e1f99ce6 | 11661 | work->pending_flip_obj = obj; |
e1f99ce6 | 11662 | |
89ed88ba CW |
11663 | ret = i915_mutex_lock_interruptible(dev); |
11664 | if (ret) | |
11665 | goto cleanup; | |
11666 | ||
b4a98e57 | 11667 | atomic_inc(&intel_crtc->unpin_work_count); |
10d83730 | 11668 | intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
e1f99ce6 | 11669 | |
75f7f3ec | 11670 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) |
fd8f507c | 11671 | work->flip_count = I915_READ(PIPE_FLIPCOUNT_G4X(pipe)) + 1; |
75f7f3ec | 11672 | |
666a4537 | 11673 | if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
4fa62c89 | 11674 | ring = &dev_priv->ring[BCS]; |
ab8d6675 | 11675 | if (obj->tiling_mode != intel_fb_obj(work->old_fb)->tiling_mode) |
8e09bf83 CW |
11676 | /* vlv: DISPLAY_FLIP fails to change tiling */ |
11677 | ring = NULL; | |
48bf5b2d | 11678 | } else if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
2a92d5bc | 11679 | ring = &dev_priv->ring[BCS]; |
4fa62c89 | 11680 | } else if (INTEL_INFO(dev)->gen >= 7) { |
b4716185 | 11681 | ring = i915_gem_request_get_ring(obj->last_write_req); |
4fa62c89 VS |
11682 | if (ring == NULL || ring->id != RCS) |
11683 | ring = &dev_priv->ring[BCS]; | |
11684 | } else { | |
11685 | ring = &dev_priv->ring[RCS]; | |
11686 | } | |
11687 | ||
cf5d8a46 CW |
11688 | mmio_flip = use_mmio_flip(ring, obj); |
11689 | ||
11690 | /* When using CS flips, we want to emit semaphores between rings. | |
11691 | * However, when using mmio flips we will create a task to do the | |
11692 | * synchronisation, so all we want here is to pin the framebuffer | |
11693 | * into the display plane and skip any waits. | |
11694 | */ | |
7580d774 ML |
11695 | if (!mmio_flip) { |
11696 | ret = i915_gem_object_sync(obj, ring, &request); | |
11697 | if (ret) | |
11698 | goto cleanup_pending; | |
11699 | } | |
11700 | ||
82bc3b2d | 11701 | ret = intel_pin_and_fence_fb_obj(crtc->primary, fb, |
7580d774 | 11702 | crtc->primary->state); |
8c9f3aaf JB |
11703 | if (ret) |
11704 | goto cleanup_pending; | |
6b95a207 | 11705 | |
dedf278c TU |
11706 | work->gtt_offset = intel_plane_obj_offset(to_intel_plane(primary), |
11707 | obj, 0); | |
11708 | work->gtt_offset += intel_crtc->dspaddr_offset; | |
4fa62c89 | 11709 | |
cf5d8a46 | 11710 | if (mmio_flip) { |
86efe24a | 11711 | ret = intel_queue_mmio_flip(dev, crtc, obj); |
d6bbafa1 CW |
11712 | if (ret) |
11713 | goto cleanup_unpin; | |
11714 | ||
f06cc1b9 JH |
11715 | i915_gem_request_assign(&work->flip_queued_req, |
11716 | obj->last_write_req); | |
d6bbafa1 | 11717 | } else { |
6258fbe2 JH |
11718 | if (!request) { |
11719 | ret = i915_gem_request_alloc(ring, ring->default_context, &request); | |
11720 | if (ret) | |
11721 | goto cleanup_unpin; | |
11722 | } | |
11723 | ||
11724 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, request, | |
d6bbafa1 CW |
11725 | page_flip_flags); |
11726 | if (ret) | |
11727 | goto cleanup_unpin; | |
11728 | ||
6258fbe2 | 11729 | i915_gem_request_assign(&work->flip_queued_req, request); |
d6bbafa1 CW |
11730 | } |
11731 | ||
91af127f | 11732 | if (request) |
75289874 | 11733 | i915_add_request_no_flush(request); |
91af127f | 11734 | |
1e3feefd | 11735 | work->flip_queued_vblank = drm_crtc_vblank_count(crtc); |
d6bbafa1 | 11736 | work->enable_stall_check = true; |
4fa62c89 | 11737 | |
ab8d6675 | 11738 | i915_gem_track_fb(intel_fb_obj(work->old_fb), obj, |
a9ff8714 | 11739 | to_intel_plane(primary)->frontbuffer_bit); |
c80ac854 | 11740 | mutex_unlock(&dev->struct_mutex); |
a071fa00 | 11741 | |
d029bcad | 11742 | intel_fbc_deactivate(intel_crtc); |
a9ff8714 VS |
11743 | intel_frontbuffer_flip_prepare(dev, |
11744 | to_intel_plane(primary)->frontbuffer_bit); | |
6b95a207 | 11745 | |
e5510fac JB |
11746 | trace_i915_flip_request(intel_crtc->plane, obj); |
11747 | ||
6b95a207 | 11748 | return 0; |
96b099fd | 11749 | |
4fa62c89 | 11750 | cleanup_unpin: |
82bc3b2d | 11751 | intel_unpin_fb_obj(fb, crtc->primary->state); |
8c9f3aaf | 11752 | cleanup_pending: |
91af127f JH |
11753 | if (request) |
11754 | i915_gem_request_cancel(request); | |
b4a98e57 | 11755 | atomic_dec(&intel_crtc->unpin_work_count); |
89ed88ba CW |
11756 | mutex_unlock(&dev->struct_mutex); |
11757 | cleanup: | |
f4510a27 | 11758 | crtc->primary->fb = old_fb; |
afd65eb4 | 11759 | update_state_fb(crtc->primary); |
89ed88ba CW |
11760 | |
11761 | drm_gem_object_unreference_unlocked(&obj->base); | |
ab8d6675 | 11762 | drm_framebuffer_unreference(work->old_fb); |
96b099fd | 11763 | |
5e2d7afc | 11764 | spin_lock_irq(&dev->event_lock); |
96b099fd | 11765 | intel_crtc->unpin_work = NULL; |
5e2d7afc | 11766 | spin_unlock_irq(&dev->event_lock); |
96b099fd | 11767 | |
87b6b101 | 11768 | drm_crtc_vblank_put(crtc); |
7317c75e | 11769 | free_work: |
96b099fd CW |
11770 | kfree(work); |
11771 | ||
f900db47 | 11772 | if (ret == -EIO) { |
02e0efb5 ML |
11773 | struct drm_atomic_state *state; |
11774 | struct drm_plane_state *plane_state; | |
11775 | ||
f900db47 | 11776 | out_hang: |
02e0efb5 ML |
11777 | state = drm_atomic_state_alloc(dev); |
11778 | if (!state) | |
11779 | return -ENOMEM; | |
11780 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); | |
11781 | ||
11782 | retry: | |
11783 | plane_state = drm_atomic_get_plane_state(state, primary); | |
11784 | ret = PTR_ERR_OR_ZERO(plane_state); | |
11785 | if (!ret) { | |
11786 | drm_atomic_set_fb_for_plane(plane_state, fb); | |
11787 | ||
11788 | ret = drm_atomic_set_crtc_for_plane(plane_state, crtc); | |
11789 | if (!ret) | |
11790 | ret = drm_atomic_commit(state); | |
11791 | } | |
11792 | ||
11793 | if (ret == -EDEADLK) { | |
11794 | drm_modeset_backoff(state->acquire_ctx); | |
11795 | drm_atomic_state_clear(state); | |
11796 | goto retry; | |
11797 | } | |
11798 | ||
11799 | if (ret) | |
11800 | drm_atomic_state_free(state); | |
11801 | ||
f0d3dad3 | 11802 | if (ret == 0 && event) { |
5e2d7afc | 11803 | spin_lock_irq(&dev->event_lock); |
a071fa00 | 11804 | drm_send_vblank_event(dev, pipe, event); |
5e2d7afc | 11805 | spin_unlock_irq(&dev->event_lock); |
f0d3dad3 | 11806 | } |
f900db47 | 11807 | } |
96b099fd | 11808 | return ret; |
6b95a207 KH |
11809 | } |
11810 | ||
da20eabd ML |
11811 | |
11812 | /** | |
11813 | * intel_wm_need_update - Check whether watermarks need updating | |
11814 | * @plane: drm plane | |
11815 | * @state: new plane state | |
11816 | * | |
11817 | * Check current plane state versus the new one to determine whether | |
11818 | * watermarks need to be recalculated. | |
11819 | * | |
11820 | * Returns true or false. | |
11821 | */ | |
11822 | static bool intel_wm_need_update(struct drm_plane *plane, | |
11823 | struct drm_plane_state *state) | |
11824 | { | |
d21fbe87 MR |
11825 | struct intel_plane_state *new = to_intel_plane_state(state); |
11826 | struct intel_plane_state *cur = to_intel_plane_state(plane->state); | |
11827 | ||
11828 | /* Update watermarks on tiling or size changes. */ | |
92826fcd ML |
11829 | if (new->visible != cur->visible) |
11830 | return true; | |
11831 | ||
11832 | if (!cur->base.fb || !new->base.fb) | |
11833 | return false; | |
11834 | ||
11835 | if (cur->base.fb->modifier[0] != new->base.fb->modifier[0] || | |
11836 | cur->base.rotation != new->base.rotation || | |
d21fbe87 MR |
11837 | drm_rect_width(&new->src) != drm_rect_width(&cur->src) || |
11838 | drm_rect_height(&new->src) != drm_rect_height(&cur->src) || | |
11839 | drm_rect_width(&new->dst) != drm_rect_width(&cur->dst) || | |
11840 | drm_rect_height(&new->dst) != drm_rect_height(&cur->dst)) | |
2791a16c | 11841 | return true; |
7809e5ae | 11842 | |
2791a16c | 11843 | return false; |
7809e5ae MR |
11844 | } |
11845 | ||
d21fbe87 MR |
11846 | static bool needs_scaling(struct intel_plane_state *state) |
11847 | { | |
11848 | int src_w = drm_rect_width(&state->src) >> 16; | |
11849 | int src_h = drm_rect_height(&state->src) >> 16; | |
11850 | int dst_w = drm_rect_width(&state->dst); | |
11851 | int dst_h = drm_rect_height(&state->dst); | |
11852 | ||
11853 | return (src_w != dst_w || src_h != dst_h); | |
11854 | } | |
11855 | ||
da20eabd ML |
11856 | int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state, |
11857 | struct drm_plane_state *plane_state) | |
11858 | { | |
ab1d3a0e | 11859 | struct intel_crtc_state *pipe_config = to_intel_crtc_state(crtc_state); |
da20eabd ML |
11860 | struct drm_crtc *crtc = crtc_state->crtc; |
11861 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11862 | struct drm_plane *plane = plane_state->plane; | |
11863 | struct drm_device *dev = crtc->dev; | |
11864 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11865 | struct intel_plane_state *old_plane_state = | |
11866 | to_intel_plane_state(plane->state); | |
11867 | int idx = intel_crtc->base.base.id, ret; | |
11868 | int i = drm_plane_index(plane); | |
11869 | bool mode_changed = needs_modeset(crtc_state); | |
11870 | bool was_crtc_enabled = crtc->state->active; | |
11871 | bool is_crtc_enabled = crtc_state->active; | |
da20eabd ML |
11872 | bool turn_off, turn_on, visible, was_visible; |
11873 | struct drm_framebuffer *fb = plane_state->fb; | |
11874 | ||
11875 | if (crtc_state && INTEL_INFO(dev)->gen >= 9 && | |
11876 | plane->type != DRM_PLANE_TYPE_CURSOR) { | |
11877 | ret = skl_update_scaler_plane( | |
11878 | to_intel_crtc_state(crtc_state), | |
11879 | to_intel_plane_state(plane_state)); | |
11880 | if (ret) | |
11881 | return ret; | |
11882 | } | |
11883 | ||
da20eabd ML |
11884 | was_visible = old_plane_state->visible; |
11885 | visible = to_intel_plane_state(plane_state)->visible; | |
11886 | ||
11887 | if (!was_crtc_enabled && WARN_ON(was_visible)) | |
11888 | was_visible = false; | |
11889 | ||
35c08f43 ML |
11890 | /* |
11891 | * Visibility is calculated as if the crtc was on, but | |
11892 | * after scaler setup everything depends on it being off | |
11893 | * when the crtc isn't active. | |
11894 | */ | |
11895 | if (!is_crtc_enabled) | |
11896 | to_intel_plane_state(plane_state)->visible = visible = false; | |
da20eabd ML |
11897 | |
11898 | if (!was_visible && !visible) | |
11899 | return 0; | |
11900 | ||
11901 | turn_off = was_visible && (!visible || mode_changed); | |
11902 | turn_on = visible && (!was_visible || mode_changed); | |
11903 | ||
11904 | DRM_DEBUG_ATOMIC("[CRTC:%i] has [PLANE:%i] with fb %i\n", idx, | |
11905 | plane->base.id, fb ? fb->base.id : -1); | |
11906 | ||
11907 | DRM_DEBUG_ATOMIC("[PLANE:%i] visible %i -> %i, off %i, on %i, ms %i\n", | |
11908 | plane->base.id, was_visible, visible, | |
11909 | turn_off, turn_on, mode_changed); | |
11910 | ||
92826fcd ML |
11911 | if (turn_on || turn_off) { |
11912 | pipe_config->wm_changed = true; | |
11913 | ||
852eb00d VS |
11914 | /* must disable cxsr around plane enable/disable */ |
11915 | if (plane->type != DRM_PLANE_TYPE_CURSOR) { | |
11916 | if (is_crtc_enabled) | |
11917 | intel_crtc->atomic.wait_vblank = true; | |
ab1d3a0e | 11918 | pipe_config->disable_cxsr = true; |
852eb00d VS |
11919 | } |
11920 | } else if (intel_wm_need_update(plane, plane_state)) { | |
92826fcd | 11921 | pipe_config->wm_changed = true; |
852eb00d | 11922 | } |
da20eabd | 11923 | |
396e33ae MR |
11924 | /* Pre-gen9 platforms need two-step watermark updates */ |
11925 | if (pipe_config->wm_changed && INTEL_INFO(dev)->gen < 9 && | |
11926 | dev_priv->display.optimize_watermarks) | |
11927 | to_intel_crtc_state(crtc_state)->wm.need_postvbl_update = true; | |
11928 | ||
8be6ca85 | 11929 | if (visible || was_visible) |
a9ff8714 VS |
11930 | intel_crtc->atomic.fb_bits |= |
11931 | to_intel_plane(plane)->frontbuffer_bit; | |
11932 | ||
da20eabd ML |
11933 | switch (plane->type) { |
11934 | case DRM_PLANE_TYPE_PRIMARY: | |
da20eabd ML |
11935 | intel_crtc->atomic.pre_disable_primary = turn_off; |
11936 | intel_crtc->atomic.post_enable_primary = turn_on; | |
11937 | ||
066cf55b RV |
11938 | if (turn_off) { |
11939 | /* | |
11940 | * FIXME: Actually if we will still have any other | |
11941 | * plane enabled on the pipe we could let IPS enabled | |
11942 | * still, but for now lets consider that when we make | |
11943 | * primary invisible by setting DSPCNTR to 0 on | |
11944 | * update_primary_plane function IPS needs to be | |
11945 | * disable. | |
11946 | */ | |
11947 | intel_crtc->atomic.disable_ips = true; | |
11948 | ||
da20eabd | 11949 | intel_crtc->atomic.disable_fbc = true; |
066cf55b | 11950 | } |
da20eabd ML |
11951 | |
11952 | /* | |
11953 | * FBC does not work on some platforms for rotated | |
11954 | * planes, so disable it when rotation is not 0 and | |
11955 | * update it when rotation is set back to 0. | |
11956 | * | |
11957 | * FIXME: This is redundant with the fbc update done in | |
11958 | * the primary plane enable function except that that | |
11959 | * one is done too late. We eventually need to unify | |
11960 | * this. | |
11961 | */ | |
11962 | ||
11963 | if (visible && | |
11964 | INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev) && | |
11965 | dev_priv->fbc.crtc == intel_crtc && | |
11966 | plane_state->rotation != BIT(DRM_ROTATE_0)) | |
11967 | intel_crtc->atomic.disable_fbc = true; | |
11968 | ||
11969 | /* | |
11970 | * BDW signals flip done immediately if the plane | |
11971 | * is disabled, even if the plane enable is already | |
11972 | * armed to occur at the next vblank :( | |
11973 | */ | |
11974 | if (turn_on && IS_BROADWELL(dev)) | |
11975 | intel_crtc->atomic.wait_vblank = true; | |
11976 | ||
11977 | intel_crtc->atomic.update_fbc |= visible || mode_changed; | |
11978 | break; | |
11979 | case DRM_PLANE_TYPE_CURSOR: | |
da20eabd ML |
11980 | break; |
11981 | case DRM_PLANE_TYPE_OVERLAY: | |
d21fbe87 MR |
11982 | /* |
11983 | * WaCxSRDisabledForSpriteScaling:ivb | |
11984 | * | |
11985 | * cstate->update_wm was already set above, so this flag will | |
11986 | * take effect when we commit and program watermarks. | |
11987 | */ | |
11988 | if (IS_IVYBRIDGE(dev) && | |
11989 | needs_scaling(to_intel_plane_state(plane_state)) && | |
11990 | !needs_scaling(old_plane_state)) { | |
11991 | to_intel_crtc_state(crtc_state)->disable_lp_wm = true; | |
11992 | } else if (turn_off && !mode_changed) { | |
da20eabd ML |
11993 | intel_crtc->atomic.wait_vblank = true; |
11994 | intel_crtc->atomic.update_sprite_watermarks |= | |
11995 | 1 << i; | |
11996 | } | |
d21fbe87 MR |
11997 | |
11998 | break; | |
da20eabd ML |
11999 | } |
12000 | return 0; | |
12001 | } | |
12002 | ||
6d3a1ce7 ML |
12003 | static bool encoders_cloneable(const struct intel_encoder *a, |
12004 | const struct intel_encoder *b) | |
12005 | { | |
12006 | /* masks could be asymmetric, so check both ways */ | |
12007 | return a == b || (a->cloneable & (1 << b->type) && | |
12008 | b->cloneable & (1 << a->type)); | |
12009 | } | |
12010 | ||
12011 | static bool check_single_encoder_cloning(struct drm_atomic_state *state, | |
12012 | struct intel_crtc *crtc, | |
12013 | struct intel_encoder *encoder) | |
12014 | { | |
12015 | struct intel_encoder *source_encoder; | |
12016 | struct drm_connector *connector; | |
12017 | struct drm_connector_state *connector_state; | |
12018 | int i; | |
12019 | ||
12020 | for_each_connector_in_state(state, connector, connector_state, i) { | |
12021 | if (connector_state->crtc != &crtc->base) | |
12022 | continue; | |
12023 | ||
12024 | source_encoder = | |
12025 | to_intel_encoder(connector_state->best_encoder); | |
12026 | if (!encoders_cloneable(encoder, source_encoder)) | |
12027 | return false; | |
12028 | } | |
12029 | ||
12030 | return true; | |
12031 | } | |
12032 | ||
12033 | static bool check_encoder_cloning(struct drm_atomic_state *state, | |
12034 | struct intel_crtc *crtc) | |
12035 | { | |
12036 | struct intel_encoder *encoder; | |
12037 | struct drm_connector *connector; | |
12038 | struct drm_connector_state *connector_state; | |
12039 | int i; | |
12040 | ||
12041 | for_each_connector_in_state(state, connector, connector_state, i) { | |
12042 | if (connector_state->crtc != &crtc->base) | |
12043 | continue; | |
12044 | ||
12045 | encoder = to_intel_encoder(connector_state->best_encoder); | |
12046 | if (!check_single_encoder_cloning(state, crtc, encoder)) | |
12047 | return false; | |
12048 | } | |
12049 | ||
12050 | return true; | |
12051 | } | |
12052 | ||
12053 | static int intel_crtc_atomic_check(struct drm_crtc *crtc, | |
12054 | struct drm_crtc_state *crtc_state) | |
12055 | { | |
cf5a15be | 12056 | struct drm_device *dev = crtc->dev; |
ad421372 | 12057 | struct drm_i915_private *dev_priv = dev->dev_private; |
6d3a1ce7 | 12058 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
cf5a15be ML |
12059 | struct intel_crtc_state *pipe_config = |
12060 | to_intel_crtc_state(crtc_state); | |
6d3a1ce7 | 12061 | struct drm_atomic_state *state = crtc_state->state; |
4d20cd86 | 12062 | int ret; |
6d3a1ce7 ML |
12063 | bool mode_changed = needs_modeset(crtc_state); |
12064 | ||
12065 | if (mode_changed && !check_encoder_cloning(state, intel_crtc)) { | |
12066 | DRM_DEBUG_KMS("rejecting invalid cloning configuration\n"); | |
12067 | return -EINVAL; | |
12068 | } | |
12069 | ||
852eb00d | 12070 | if (mode_changed && !crtc_state->active) |
92826fcd | 12071 | pipe_config->wm_changed = true; |
eddfcbcd | 12072 | |
ad421372 ML |
12073 | if (mode_changed && crtc_state->enable && |
12074 | dev_priv->display.crtc_compute_clock && | |
12075 | !WARN_ON(pipe_config->shared_dpll != DPLL_ID_PRIVATE)) { | |
12076 | ret = dev_priv->display.crtc_compute_clock(intel_crtc, | |
12077 | pipe_config); | |
12078 | if (ret) | |
12079 | return ret; | |
12080 | } | |
12081 | ||
e435d6e5 | 12082 | ret = 0; |
86c8bbbe MR |
12083 | if (dev_priv->display.compute_pipe_wm) { |
12084 | ret = dev_priv->display.compute_pipe_wm(intel_crtc, state); | |
396e33ae MR |
12085 | if (ret) { |
12086 | DRM_DEBUG_KMS("Target pipe watermarks are invalid\n"); | |
12087 | return ret; | |
12088 | } | |
12089 | } | |
12090 | ||
12091 | if (dev_priv->display.compute_intermediate_wm && | |
12092 | !to_intel_atomic_state(state)->skip_intermediate_wm) { | |
12093 | if (WARN_ON(!dev_priv->display.compute_pipe_wm)) | |
12094 | return 0; | |
12095 | ||
12096 | /* | |
12097 | * Calculate 'intermediate' watermarks that satisfy both the | |
12098 | * old state and the new state. We can program these | |
12099 | * immediately. | |
12100 | */ | |
12101 | ret = dev_priv->display.compute_intermediate_wm(crtc->dev, | |
12102 | intel_crtc, | |
12103 | pipe_config); | |
12104 | if (ret) { | |
12105 | DRM_DEBUG_KMS("No valid intermediate pipe watermarks are possible\n"); | |
86c8bbbe | 12106 | return ret; |
396e33ae | 12107 | } |
86c8bbbe MR |
12108 | } |
12109 | ||
e435d6e5 ML |
12110 | if (INTEL_INFO(dev)->gen >= 9) { |
12111 | if (mode_changed) | |
12112 | ret = skl_update_scaler_crtc(pipe_config); | |
12113 | ||
12114 | if (!ret) | |
12115 | ret = intel_atomic_setup_scalers(dev, intel_crtc, | |
12116 | pipe_config); | |
12117 | } | |
12118 | ||
12119 | return ret; | |
6d3a1ce7 ML |
12120 | } |
12121 | ||
65b38e0d | 12122 | static const struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 CW |
12123 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
12124 | .load_lut = intel_crtc_load_lut, | |
ea2c67bb MR |
12125 | .atomic_begin = intel_begin_crtc_commit, |
12126 | .atomic_flush = intel_finish_crtc_commit, | |
6d3a1ce7 | 12127 | .atomic_check = intel_crtc_atomic_check, |
f6e5b160 CW |
12128 | }; |
12129 | ||
d29b2f9d ACO |
12130 | static void intel_modeset_update_connector_atomic_state(struct drm_device *dev) |
12131 | { | |
12132 | struct intel_connector *connector; | |
12133 | ||
12134 | for_each_intel_connector(dev, connector) { | |
12135 | if (connector->base.encoder) { | |
12136 | connector->base.state->best_encoder = | |
12137 | connector->base.encoder; | |
12138 | connector->base.state->crtc = | |
12139 | connector->base.encoder->crtc; | |
12140 | } else { | |
12141 | connector->base.state->best_encoder = NULL; | |
12142 | connector->base.state->crtc = NULL; | |
12143 | } | |
12144 | } | |
12145 | } | |
12146 | ||
050f7aeb | 12147 | static void |
eba905b2 | 12148 | connected_sink_compute_bpp(struct intel_connector *connector, |
5cec258b | 12149 | struct intel_crtc_state *pipe_config) |
050f7aeb DV |
12150 | { |
12151 | int bpp = pipe_config->pipe_bpp; | |
12152 | ||
12153 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n", | |
12154 | connector->base.base.id, | |
c23cc417 | 12155 | connector->base.name); |
050f7aeb DV |
12156 | |
12157 | /* Don't use an invalid EDID bpc value */ | |
12158 | if (connector->base.display_info.bpc && | |
12159 | connector->base.display_info.bpc * 3 < bpp) { | |
12160 | DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n", | |
12161 | bpp, connector->base.display_info.bpc*3); | |
12162 | pipe_config->pipe_bpp = connector->base.display_info.bpc*3; | |
12163 | } | |
12164 | ||
12165 | /* Clamp bpp to 8 on screens without EDID 1.4 */ | |
12166 | if (connector->base.display_info.bpc == 0 && bpp > 24) { | |
12167 | DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n", | |
12168 | bpp); | |
12169 | pipe_config->pipe_bpp = 24; | |
12170 | } | |
12171 | } | |
12172 | ||
4e53c2e0 | 12173 | static int |
050f7aeb | 12174 | compute_baseline_pipe_bpp(struct intel_crtc *crtc, |
5cec258b | 12175 | struct intel_crtc_state *pipe_config) |
4e53c2e0 | 12176 | { |
050f7aeb | 12177 | struct drm_device *dev = crtc->base.dev; |
1486017f | 12178 | struct drm_atomic_state *state; |
da3ced29 ACO |
12179 | struct drm_connector *connector; |
12180 | struct drm_connector_state *connector_state; | |
1486017f | 12181 | int bpp, i; |
4e53c2e0 | 12182 | |
666a4537 | 12183 | if ((IS_G4X(dev) || IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))) |
4e53c2e0 | 12184 | bpp = 10*3; |
d328c9d7 DV |
12185 | else if (INTEL_INFO(dev)->gen >= 5) |
12186 | bpp = 12*3; | |
12187 | else | |
12188 | bpp = 8*3; | |
12189 | ||
4e53c2e0 | 12190 | |
4e53c2e0 DV |
12191 | pipe_config->pipe_bpp = bpp; |
12192 | ||
1486017f ACO |
12193 | state = pipe_config->base.state; |
12194 | ||
4e53c2e0 | 12195 | /* Clamp display bpp to EDID value */ |
da3ced29 ACO |
12196 | for_each_connector_in_state(state, connector, connector_state, i) { |
12197 | if (connector_state->crtc != &crtc->base) | |
4e53c2e0 DV |
12198 | continue; |
12199 | ||
da3ced29 ACO |
12200 | connected_sink_compute_bpp(to_intel_connector(connector), |
12201 | pipe_config); | |
4e53c2e0 DV |
12202 | } |
12203 | ||
12204 | return bpp; | |
12205 | } | |
12206 | ||
644db711 DV |
12207 | static void intel_dump_crtc_timings(const struct drm_display_mode *mode) |
12208 | { | |
12209 | DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, " | |
12210 | "type: 0x%x flags: 0x%x\n", | |
1342830c | 12211 | mode->crtc_clock, |
644db711 DV |
12212 | mode->crtc_hdisplay, mode->crtc_hsync_start, |
12213 | mode->crtc_hsync_end, mode->crtc_htotal, | |
12214 | mode->crtc_vdisplay, mode->crtc_vsync_start, | |
12215 | mode->crtc_vsync_end, mode->crtc_vtotal, mode->type, mode->flags); | |
12216 | } | |
12217 | ||
c0b03411 | 12218 | static void intel_dump_pipe_config(struct intel_crtc *crtc, |
5cec258b | 12219 | struct intel_crtc_state *pipe_config, |
c0b03411 DV |
12220 | const char *context) |
12221 | { | |
6a60cd87 CK |
12222 | struct drm_device *dev = crtc->base.dev; |
12223 | struct drm_plane *plane; | |
12224 | struct intel_plane *intel_plane; | |
12225 | struct intel_plane_state *state; | |
12226 | struct drm_framebuffer *fb; | |
12227 | ||
12228 | DRM_DEBUG_KMS("[CRTC:%d]%s config %p for pipe %c\n", crtc->base.base.id, | |
12229 | context, pipe_config, pipe_name(crtc->pipe)); | |
c0b03411 DV |
12230 | |
12231 | DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder)); | |
12232 | DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n", | |
12233 | pipe_config->pipe_bpp, pipe_config->dither); | |
12234 | DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", | |
12235 | pipe_config->has_pch_encoder, | |
12236 | pipe_config->fdi_lanes, | |
12237 | pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n, | |
12238 | pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n, | |
12239 | pipe_config->fdi_m_n.tu); | |
90a6b7b0 | 12240 | DRM_DEBUG_KMS("dp: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", |
eb14cb74 | 12241 | pipe_config->has_dp_encoder, |
90a6b7b0 | 12242 | pipe_config->lane_count, |
eb14cb74 VS |
12243 | pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n, |
12244 | pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n, | |
12245 | pipe_config->dp_m_n.tu); | |
b95af8be | 12246 | |
90a6b7b0 | 12247 | DRM_DEBUG_KMS("dp: %i, lanes: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n", |
b95af8be | 12248 | pipe_config->has_dp_encoder, |
90a6b7b0 | 12249 | pipe_config->lane_count, |
b95af8be VK |
12250 | pipe_config->dp_m2_n2.gmch_m, |
12251 | pipe_config->dp_m2_n2.gmch_n, | |
12252 | pipe_config->dp_m2_n2.link_m, | |
12253 | pipe_config->dp_m2_n2.link_n, | |
12254 | pipe_config->dp_m2_n2.tu); | |
12255 | ||
55072d19 DV |
12256 | DRM_DEBUG_KMS("audio: %i, infoframes: %i\n", |
12257 | pipe_config->has_audio, | |
12258 | pipe_config->has_infoframe); | |
12259 | ||
c0b03411 | 12260 | DRM_DEBUG_KMS("requested mode:\n"); |
2d112de7 | 12261 | drm_mode_debug_printmodeline(&pipe_config->base.mode); |
c0b03411 | 12262 | DRM_DEBUG_KMS("adjusted mode:\n"); |
2d112de7 ACO |
12263 | drm_mode_debug_printmodeline(&pipe_config->base.adjusted_mode); |
12264 | intel_dump_crtc_timings(&pipe_config->base.adjusted_mode); | |
d71b8d4a | 12265 | DRM_DEBUG_KMS("port clock: %d\n", pipe_config->port_clock); |
37327abd VS |
12266 | DRM_DEBUG_KMS("pipe src size: %dx%d\n", |
12267 | pipe_config->pipe_src_w, pipe_config->pipe_src_h); | |
0ec463d3 TU |
12268 | DRM_DEBUG_KMS("num_scalers: %d, scaler_users: 0x%x, scaler_id: %d\n", |
12269 | crtc->num_scalers, | |
12270 | pipe_config->scaler_state.scaler_users, | |
12271 | pipe_config->scaler_state.scaler_id); | |
c0b03411 DV |
12272 | DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n", |
12273 | pipe_config->gmch_pfit.control, | |
12274 | pipe_config->gmch_pfit.pgm_ratios, | |
12275 | pipe_config->gmch_pfit.lvds_border_bits); | |
fd4daa9c | 12276 | DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n", |
c0b03411 | 12277 | pipe_config->pch_pfit.pos, |
fd4daa9c CW |
12278 | pipe_config->pch_pfit.size, |
12279 | pipe_config->pch_pfit.enabled ? "enabled" : "disabled"); | |
42db64ef | 12280 | DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled); |
cf532bb2 | 12281 | DRM_DEBUG_KMS("double wide: %i\n", pipe_config->double_wide); |
6a60cd87 | 12282 | |
415ff0f6 | 12283 | if (IS_BROXTON(dev)) { |
05712c15 | 12284 | DRM_DEBUG_KMS("ddi_pll_sel: %u; dpll_hw_state: ebb0: 0x%x, ebb4: 0x%x," |
415ff0f6 | 12285 | "pll0: 0x%x, pll1: 0x%x, pll2: 0x%x, pll3: 0x%x, " |
c8453338 | 12286 | "pll6: 0x%x, pll8: 0x%x, pll9: 0x%x, pll10: 0x%x, pcsdw12: 0x%x\n", |
415ff0f6 TU |
12287 | pipe_config->ddi_pll_sel, |
12288 | pipe_config->dpll_hw_state.ebb0, | |
05712c15 | 12289 | pipe_config->dpll_hw_state.ebb4, |
415ff0f6 TU |
12290 | pipe_config->dpll_hw_state.pll0, |
12291 | pipe_config->dpll_hw_state.pll1, | |
12292 | pipe_config->dpll_hw_state.pll2, | |
12293 | pipe_config->dpll_hw_state.pll3, | |
12294 | pipe_config->dpll_hw_state.pll6, | |
12295 | pipe_config->dpll_hw_state.pll8, | |
05712c15 | 12296 | pipe_config->dpll_hw_state.pll9, |
c8453338 | 12297 | pipe_config->dpll_hw_state.pll10, |
415ff0f6 | 12298 | pipe_config->dpll_hw_state.pcsdw12); |
ef11bdb3 | 12299 | } else if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) { |
415ff0f6 TU |
12300 | DRM_DEBUG_KMS("ddi_pll_sel: %u; dpll_hw_state: " |
12301 | "ctrl1: 0x%x, cfgcr1: 0x%x, cfgcr2: 0x%x\n", | |
12302 | pipe_config->ddi_pll_sel, | |
12303 | pipe_config->dpll_hw_state.ctrl1, | |
12304 | pipe_config->dpll_hw_state.cfgcr1, | |
12305 | pipe_config->dpll_hw_state.cfgcr2); | |
12306 | } else if (HAS_DDI(dev)) { | |
00490c22 | 12307 | DRM_DEBUG_KMS("ddi_pll_sel: %u; dpll_hw_state: wrpll: 0x%x spll: 0x%x\n", |
415ff0f6 | 12308 | pipe_config->ddi_pll_sel, |
00490c22 ML |
12309 | pipe_config->dpll_hw_state.wrpll, |
12310 | pipe_config->dpll_hw_state.spll); | |
415ff0f6 TU |
12311 | } else { |
12312 | DRM_DEBUG_KMS("dpll_hw_state: dpll: 0x%x, dpll_md: 0x%x, " | |
12313 | "fp0: 0x%x, fp1: 0x%x\n", | |
12314 | pipe_config->dpll_hw_state.dpll, | |
12315 | pipe_config->dpll_hw_state.dpll_md, | |
12316 | pipe_config->dpll_hw_state.fp0, | |
12317 | pipe_config->dpll_hw_state.fp1); | |
12318 | } | |
12319 | ||
6a60cd87 CK |
12320 | DRM_DEBUG_KMS("planes on this crtc\n"); |
12321 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { | |
12322 | intel_plane = to_intel_plane(plane); | |
12323 | if (intel_plane->pipe != crtc->pipe) | |
12324 | continue; | |
12325 | ||
12326 | state = to_intel_plane_state(plane->state); | |
12327 | fb = state->base.fb; | |
12328 | if (!fb) { | |
12329 | DRM_DEBUG_KMS("%s PLANE:%d plane: %u.%u idx: %d " | |
12330 | "disabled, scaler_id = %d\n", | |
12331 | plane->type == DRM_PLANE_TYPE_CURSOR ? "CURSOR" : "STANDARD", | |
12332 | plane->base.id, intel_plane->pipe, | |
12333 | (crtc->base.primary == plane) ? 0 : intel_plane->plane + 1, | |
12334 | drm_plane_index(plane), state->scaler_id); | |
12335 | continue; | |
12336 | } | |
12337 | ||
12338 | DRM_DEBUG_KMS("%s PLANE:%d plane: %u.%u idx: %d enabled", | |
12339 | plane->type == DRM_PLANE_TYPE_CURSOR ? "CURSOR" : "STANDARD", | |
12340 | plane->base.id, intel_plane->pipe, | |
12341 | crtc->base.primary == plane ? 0 : intel_plane->plane + 1, | |
12342 | drm_plane_index(plane)); | |
12343 | DRM_DEBUG_KMS("\tFB:%d, fb = %ux%u format = 0x%x", | |
12344 | fb->base.id, fb->width, fb->height, fb->pixel_format); | |
12345 | DRM_DEBUG_KMS("\tscaler:%d src (%u, %u) %ux%u dst (%u, %u) %ux%u\n", | |
12346 | state->scaler_id, | |
12347 | state->src.x1 >> 16, state->src.y1 >> 16, | |
12348 | drm_rect_width(&state->src) >> 16, | |
12349 | drm_rect_height(&state->src) >> 16, | |
12350 | state->dst.x1, state->dst.y1, | |
12351 | drm_rect_width(&state->dst), drm_rect_height(&state->dst)); | |
12352 | } | |
c0b03411 DV |
12353 | } |
12354 | ||
5448a00d | 12355 | static bool check_digital_port_conflicts(struct drm_atomic_state *state) |
00f0b378 | 12356 | { |
5448a00d | 12357 | struct drm_device *dev = state->dev; |
da3ced29 | 12358 | struct drm_connector *connector; |
00f0b378 VS |
12359 | unsigned int used_ports = 0; |
12360 | ||
12361 | /* | |
12362 | * Walk the connector list instead of the encoder | |
12363 | * list to detect the problem on ddi platforms | |
12364 | * where there's just one encoder per digital port. | |
12365 | */ | |
0bff4858 VS |
12366 | drm_for_each_connector(connector, dev) { |
12367 | struct drm_connector_state *connector_state; | |
12368 | struct intel_encoder *encoder; | |
12369 | ||
12370 | connector_state = drm_atomic_get_existing_connector_state(state, connector); | |
12371 | if (!connector_state) | |
12372 | connector_state = connector->state; | |
12373 | ||
5448a00d | 12374 | if (!connector_state->best_encoder) |
00f0b378 VS |
12375 | continue; |
12376 | ||
5448a00d ACO |
12377 | encoder = to_intel_encoder(connector_state->best_encoder); |
12378 | ||
12379 | WARN_ON(!connector_state->crtc); | |
00f0b378 VS |
12380 | |
12381 | switch (encoder->type) { | |
12382 | unsigned int port_mask; | |
12383 | case INTEL_OUTPUT_UNKNOWN: | |
12384 | if (WARN_ON(!HAS_DDI(dev))) | |
12385 | break; | |
12386 | case INTEL_OUTPUT_DISPLAYPORT: | |
12387 | case INTEL_OUTPUT_HDMI: | |
12388 | case INTEL_OUTPUT_EDP: | |
12389 | port_mask = 1 << enc_to_dig_port(&encoder->base)->port; | |
12390 | ||
12391 | /* the same port mustn't appear more than once */ | |
12392 | if (used_ports & port_mask) | |
12393 | return false; | |
12394 | ||
12395 | used_ports |= port_mask; | |
12396 | default: | |
12397 | break; | |
12398 | } | |
12399 | } | |
12400 | ||
12401 | return true; | |
12402 | } | |
12403 | ||
83a57153 ACO |
12404 | static void |
12405 | clear_intel_crtc_state(struct intel_crtc_state *crtc_state) | |
12406 | { | |
12407 | struct drm_crtc_state tmp_state; | |
663a3640 | 12408 | struct intel_crtc_scaler_state scaler_state; |
4978cc93 ACO |
12409 | struct intel_dpll_hw_state dpll_hw_state; |
12410 | enum intel_dpll_id shared_dpll; | |
8504c74c | 12411 | uint32_t ddi_pll_sel; |
c4e2d043 | 12412 | bool force_thru; |
83a57153 | 12413 | |
7546a384 ACO |
12414 | /* FIXME: before the switch to atomic started, a new pipe_config was |
12415 | * kzalloc'd. Code that depends on any field being zero should be | |
12416 | * fixed, so that the crtc_state can be safely duplicated. For now, | |
12417 | * only fields that are know to not cause problems are preserved. */ | |
12418 | ||
83a57153 | 12419 | tmp_state = crtc_state->base; |
663a3640 | 12420 | scaler_state = crtc_state->scaler_state; |
4978cc93 ACO |
12421 | shared_dpll = crtc_state->shared_dpll; |
12422 | dpll_hw_state = crtc_state->dpll_hw_state; | |
8504c74c | 12423 | ddi_pll_sel = crtc_state->ddi_pll_sel; |
c4e2d043 | 12424 | force_thru = crtc_state->pch_pfit.force_thru; |
4978cc93 | 12425 | |
83a57153 | 12426 | memset(crtc_state, 0, sizeof *crtc_state); |
4978cc93 | 12427 | |
83a57153 | 12428 | crtc_state->base = tmp_state; |
663a3640 | 12429 | crtc_state->scaler_state = scaler_state; |
4978cc93 ACO |
12430 | crtc_state->shared_dpll = shared_dpll; |
12431 | crtc_state->dpll_hw_state = dpll_hw_state; | |
8504c74c | 12432 | crtc_state->ddi_pll_sel = ddi_pll_sel; |
c4e2d043 | 12433 | crtc_state->pch_pfit.force_thru = force_thru; |
83a57153 ACO |
12434 | } |
12435 | ||
548ee15b | 12436 | static int |
b8cecdf5 | 12437 | intel_modeset_pipe_config(struct drm_crtc *crtc, |
b359283a | 12438 | struct intel_crtc_state *pipe_config) |
ee7b9f93 | 12439 | { |
b359283a | 12440 | struct drm_atomic_state *state = pipe_config->base.state; |
7758a113 | 12441 | struct intel_encoder *encoder; |
da3ced29 | 12442 | struct drm_connector *connector; |
0b901879 | 12443 | struct drm_connector_state *connector_state; |
d328c9d7 | 12444 | int base_bpp, ret = -EINVAL; |
0b901879 | 12445 | int i; |
e29c22c0 | 12446 | bool retry = true; |
ee7b9f93 | 12447 | |
83a57153 | 12448 | clear_intel_crtc_state(pipe_config); |
7758a113 | 12449 | |
e143a21c DV |
12450 | pipe_config->cpu_transcoder = |
12451 | (enum transcoder) to_intel_crtc(crtc)->pipe; | |
b8cecdf5 | 12452 | |
2960bc9c ID |
12453 | /* |
12454 | * Sanitize sync polarity flags based on requested ones. If neither | |
12455 | * positive or negative polarity is requested, treat this as meaning | |
12456 | * negative polarity. | |
12457 | */ | |
2d112de7 | 12458 | if (!(pipe_config->base.adjusted_mode.flags & |
2960bc9c | 12459 | (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC))) |
2d112de7 | 12460 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC; |
2960bc9c | 12461 | |
2d112de7 | 12462 | if (!(pipe_config->base.adjusted_mode.flags & |
2960bc9c | 12463 | (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC))) |
2d112de7 | 12464 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC; |
2960bc9c | 12465 | |
d328c9d7 DV |
12466 | base_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc), |
12467 | pipe_config); | |
12468 | if (base_bpp < 0) | |
4e53c2e0 DV |
12469 | goto fail; |
12470 | ||
e41a56be VS |
12471 | /* |
12472 | * Determine the real pipe dimensions. Note that stereo modes can | |
12473 | * increase the actual pipe size due to the frame doubling and | |
12474 | * insertion of additional space for blanks between the frame. This | |
12475 | * is stored in the crtc timings. We use the requested mode to do this | |
12476 | * computation to clearly distinguish it from the adjusted mode, which | |
12477 | * can be changed by the connectors in the below retry loop. | |
12478 | */ | |
2d112de7 | 12479 | drm_crtc_get_hv_timing(&pipe_config->base.mode, |
ecb7e16b GP |
12480 | &pipe_config->pipe_src_w, |
12481 | &pipe_config->pipe_src_h); | |
e41a56be | 12482 | |
e29c22c0 | 12483 | encoder_retry: |
ef1b460d | 12484 | /* Ensure the port clock defaults are reset when retrying. */ |
ff9a6750 | 12485 | pipe_config->port_clock = 0; |
ef1b460d | 12486 | pipe_config->pixel_multiplier = 1; |
ff9a6750 | 12487 | |
135c81b8 | 12488 | /* Fill in default crtc timings, allow encoders to overwrite them. */ |
2d112de7 ACO |
12489 | drm_mode_set_crtcinfo(&pipe_config->base.adjusted_mode, |
12490 | CRTC_STEREO_DOUBLE); | |
135c81b8 | 12491 | |
7758a113 DV |
12492 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
12493 | * adjust it according to limitations or connector properties, and also | |
12494 | * a chance to reject the mode entirely. | |
47f1c6c9 | 12495 | */ |
da3ced29 | 12496 | for_each_connector_in_state(state, connector, connector_state, i) { |
0b901879 | 12497 | if (connector_state->crtc != crtc) |
7758a113 | 12498 | continue; |
7ae89233 | 12499 | |
0b901879 ACO |
12500 | encoder = to_intel_encoder(connector_state->best_encoder); |
12501 | ||
efea6e8e DV |
12502 | if (!(encoder->compute_config(encoder, pipe_config))) { |
12503 | DRM_DEBUG_KMS("Encoder config failure\n"); | |
7758a113 DV |
12504 | goto fail; |
12505 | } | |
ee7b9f93 | 12506 | } |
47f1c6c9 | 12507 | |
ff9a6750 DV |
12508 | /* Set default port clock if not overwritten by the encoder. Needs to be |
12509 | * done afterwards in case the encoder adjusts the mode. */ | |
12510 | if (!pipe_config->port_clock) | |
2d112de7 | 12511 | pipe_config->port_clock = pipe_config->base.adjusted_mode.crtc_clock |
241bfc38 | 12512 | * pipe_config->pixel_multiplier; |
ff9a6750 | 12513 | |
a43f6e0f | 12514 | ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config); |
e29c22c0 | 12515 | if (ret < 0) { |
7758a113 DV |
12516 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
12517 | goto fail; | |
ee7b9f93 | 12518 | } |
e29c22c0 DV |
12519 | |
12520 | if (ret == RETRY) { | |
12521 | if (WARN(!retry, "loop in pipe configuration computation\n")) { | |
12522 | ret = -EINVAL; | |
12523 | goto fail; | |
12524 | } | |
12525 | ||
12526 | DRM_DEBUG_KMS("CRTC bw constrained, retrying\n"); | |
12527 | retry = false; | |
12528 | goto encoder_retry; | |
12529 | } | |
12530 | ||
e8fa4270 DV |
12531 | /* Dithering seems to not pass-through bits correctly when it should, so |
12532 | * only enable it on 6bpc panels. */ | |
12533 | pipe_config->dither = pipe_config->pipe_bpp == 6*3; | |
62f0ace5 | 12534 | DRM_DEBUG_KMS("hw max bpp: %i, pipe bpp: %i, dithering: %i\n", |
d328c9d7 | 12535 | base_bpp, pipe_config->pipe_bpp, pipe_config->dither); |
4e53c2e0 | 12536 | |
7758a113 | 12537 | fail: |
548ee15b | 12538 | return ret; |
ee7b9f93 | 12539 | } |
47f1c6c9 | 12540 | |
ea9d758d | 12541 | static void |
4740b0f2 | 12542 | intel_modeset_update_crtc_state(struct drm_atomic_state *state) |
ea9d758d | 12543 | { |
0a9ab303 ACO |
12544 | struct drm_crtc *crtc; |
12545 | struct drm_crtc_state *crtc_state; | |
8a75d157 | 12546 | int i; |
ea9d758d | 12547 | |
7668851f | 12548 | /* Double check state. */ |
8a75d157 | 12549 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
3cb480bc | 12550 | to_intel_crtc(crtc)->config = to_intel_crtc_state(crtc->state); |
fc467a22 ML |
12551 | |
12552 | /* Update hwmode for vblank functions */ | |
12553 | if (crtc->state->active) | |
12554 | crtc->hwmode = crtc->state->adjusted_mode; | |
12555 | else | |
12556 | crtc->hwmode.crtc_clock = 0; | |
61067a5e ML |
12557 | |
12558 | /* | |
12559 | * Update legacy state to satisfy fbc code. This can | |
12560 | * be removed when fbc uses the atomic state. | |
12561 | */ | |
12562 | if (drm_atomic_get_existing_plane_state(state, crtc->primary)) { | |
12563 | struct drm_plane_state *plane_state = crtc->primary->state; | |
12564 | ||
12565 | crtc->primary->fb = plane_state->fb; | |
12566 | crtc->x = plane_state->src_x >> 16; | |
12567 | crtc->y = plane_state->src_y >> 16; | |
12568 | } | |
ea9d758d | 12569 | } |
ea9d758d DV |
12570 | } |
12571 | ||
3bd26263 | 12572 | static bool intel_fuzzy_clock_check(int clock1, int clock2) |
f1f644dc | 12573 | { |
3bd26263 | 12574 | int diff; |
f1f644dc JB |
12575 | |
12576 | if (clock1 == clock2) | |
12577 | return true; | |
12578 | ||
12579 | if (!clock1 || !clock2) | |
12580 | return false; | |
12581 | ||
12582 | diff = abs(clock1 - clock2); | |
12583 | ||
12584 | if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105) | |
12585 | return true; | |
12586 | ||
12587 | return false; | |
12588 | } | |
12589 | ||
25c5b266 DV |
12590 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
12591 | list_for_each_entry((intel_crtc), \ | |
12592 | &(dev)->mode_config.crtc_list, \ | |
12593 | base.head) \ | |
95150bdf | 12594 | for_each_if (mask & (1 <<(intel_crtc)->pipe)) |
25c5b266 | 12595 | |
cfb23ed6 ML |
12596 | static bool |
12597 | intel_compare_m_n(unsigned int m, unsigned int n, | |
12598 | unsigned int m2, unsigned int n2, | |
12599 | bool exact) | |
12600 | { | |
12601 | if (m == m2 && n == n2) | |
12602 | return true; | |
12603 | ||
12604 | if (exact || !m || !n || !m2 || !n2) | |
12605 | return false; | |
12606 | ||
12607 | BUILD_BUG_ON(DATA_LINK_M_N_MASK > INT_MAX); | |
12608 | ||
31d10b57 ML |
12609 | if (n > n2) { |
12610 | while (n > n2) { | |
cfb23ed6 ML |
12611 | m2 <<= 1; |
12612 | n2 <<= 1; | |
12613 | } | |
31d10b57 ML |
12614 | } else if (n < n2) { |
12615 | while (n < n2) { | |
cfb23ed6 ML |
12616 | m <<= 1; |
12617 | n <<= 1; | |
12618 | } | |
12619 | } | |
12620 | ||
31d10b57 ML |
12621 | if (n != n2) |
12622 | return false; | |
12623 | ||
12624 | return intel_fuzzy_clock_check(m, m2); | |
cfb23ed6 ML |
12625 | } |
12626 | ||
12627 | static bool | |
12628 | intel_compare_link_m_n(const struct intel_link_m_n *m_n, | |
12629 | struct intel_link_m_n *m2_n2, | |
12630 | bool adjust) | |
12631 | { | |
12632 | if (m_n->tu == m2_n2->tu && | |
12633 | intel_compare_m_n(m_n->gmch_m, m_n->gmch_n, | |
12634 | m2_n2->gmch_m, m2_n2->gmch_n, !adjust) && | |
12635 | intel_compare_m_n(m_n->link_m, m_n->link_n, | |
12636 | m2_n2->link_m, m2_n2->link_n, !adjust)) { | |
12637 | if (adjust) | |
12638 | *m2_n2 = *m_n; | |
12639 | ||
12640 | return true; | |
12641 | } | |
12642 | ||
12643 | return false; | |
12644 | } | |
12645 | ||
0e8ffe1b | 12646 | static bool |
2fa2fe9a | 12647 | intel_pipe_config_compare(struct drm_device *dev, |
5cec258b | 12648 | struct intel_crtc_state *current_config, |
cfb23ed6 ML |
12649 | struct intel_crtc_state *pipe_config, |
12650 | bool adjust) | |
0e8ffe1b | 12651 | { |
cfb23ed6 ML |
12652 | bool ret = true; |
12653 | ||
12654 | #define INTEL_ERR_OR_DBG_KMS(fmt, ...) \ | |
12655 | do { \ | |
12656 | if (!adjust) \ | |
12657 | DRM_ERROR(fmt, ##__VA_ARGS__); \ | |
12658 | else \ | |
12659 | DRM_DEBUG_KMS(fmt, ##__VA_ARGS__); \ | |
12660 | } while (0) | |
12661 | ||
66e985c0 DV |
12662 | #define PIPE_CONF_CHECK_X(name) \ |
12663 | if (current_config->name != pipe_config->name) { \ | |
cfb23ed6 | 12664 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
66e985c0 DV |
12665 | "(expected 0x%08x, found 0x%08x)\n", \ |
12666 | current_config->name, \ | |
12667 | pipe_config->name); \ | |
cfb23ed6 | 12668 | ret = false; \ |
66e985c0 DV |
12669 | } |
12670 | ||
08a24034 DV |
12671 | #define PIPE_CONF_CHECK_I(name) \ |
12672 | if (current_config->name != pipe_config->name) { \ | |
cfb23ed6 | 12673 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
08a24034 DV |
12674 | "(expected %i, found %i)\n", \ |
12675 | current_config->name, \ | |
12676 | pipe_config->name); \ | |
cfb23ed6 ML |
12677 | ret = false; \ |
12678 | } | |
12679 | ||
12680 | #define PIPE_CONF_CHECK_M_N(name) \ | |
12681 | if (!intel_compare_link_m_n(¤t_config->name, \ | |
12682 | &pipe_config->name,\ | |
12683 | adjust)) { \ | |
12684 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ | |
12685 | "(expected tu %i gmch %i/%i link %i/%i, " \ | |
12686 | "found tu %i, gmch %i/%i link %i/%i)\n", \ | |
12687 | current_config->name.tu, \ | |
12688 | current_config->name.gmch_m, \ | |
12689 | current_config->name.gmch_n, \ | |
12690 | current_config->name.link_m, \ | |
12691 | current_config->name.link_n, \ | |
12692 | pipe_config->name.tu, \ | |
12693 | pipe_config->name.gmch_m, \ | |
12694 | pipe_config->name.gmch_n, \ | |
12695 | pipe_config->name.link_m, \ | |
12696 | pipe_config->name.link_n); \ | |
12697 | ret = false; \ | |
12698 | } | |
12699 | ||
12700 | #define PIPE_CONF_CHECK_M_N_ALT(name, alt_name) \ | |
12701 | if (!intel_compare_link_m_n(¤t_config->name, \ | |
12702 | &pipe_config->name, adjust) && \ | |
12703 | !intel_compare_link_m_n(¤t_config->alt_name, \ | |
12704 | &pipe_config->name, adjust)) { \ | |
12705 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ | |
12706 | "(expected tu %i gmch %i/%i link %i/%i, " \ | |
12707 | "or tu %i gmch %i/%i link %i/%i, " \ | |
12708 | "found tu %i, gmch %i/%i link %i/%i)\n", \ | |
12709 | current_config->name.tu, \ | |
12710 | current_config->name.gmch_m, \ | |
12711 | current_config->name.gmch_n, \ | |
12712 | current_config->name.link_m, \ | |
12713 | current_config->name.link_n, \ | |
12714 | current_config->alt_name.tu, \ | |
12715 | current_config->alt_name.gmch_m, \ | |
12716 | current_config->alt_name.gmch_n, \ | |
12717 | current_config->alt_name.link_m, \ | |
12718 | current_config->alt_name.link_n, \ | |
12719 | pipe_config->name.tu, \ | |
12720 | pipe_config->name.gmch_m, \ | |
12721 | pipe_config->name.gmch_n, \ | |
12722 | pipe_config->name.link_m, \ | |
12723 | pipe_config->name.link_n); \ | |
12724 | ret = false; \ | |
88adfff1 DV |
12725 | } |
12726 | ||
b95af8be VK |
12727 | /* This is required for BDW+ where there is only one set of registers for |
12728 | * switching between high and low RR. | |
12729 | * This macro can be used whenever a comparison has to be made between one | |
12730 | * hw state and multiple sw state variables. | |
12731 | */ | |
12732 | #define PIPE_CONF_CHECK_I_ALT(name, alt_name) \ | |
12733 | if ((current_config->name != pipe_config->name) && \ | |
12734 | (current_config->alt_name != pipe_config->name)) { \ | |
cfb23ed6 | 12735 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
b95af8be VK |
12736 | "(expected %i or %i, found %i)\n", \ |
12737 | current_config->name, \ | |
12738 | current_config->alt_name, \ | |
12739 | pipe_config->name); \ | |
cfb23ed6 | 12740 | ret = false; \ |
b95af8be VK |
12741 | } |
12742 | ||
1bd1bd80 DV |
12743 | #define PIPE_CONF_CHECK_FLAGS(name, mask) \ |
12744 | if ((current_config->name ^ pipe_config->name) & (mask)) { \ | |
cfb23ed6 | 12745 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name "(" #mask ") " \ |
1bd1bd80 DV |
12746 | "(expected %i, found %i)\n", \ |
12747 | current_config->name & (mask), \ | |
12748 | pipe_config->name & (mask)); \ | |
cfb23ed6 | 12749 | ret = false; \ |
1bd1bd80 DV |
12750 | } |
12751 | ||
5e550656 VS |
12752 | #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \ |
12753 | if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \ | |
cfb23ed6 | 12754 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
5e550656 VS |
12755 | "(expected %i, found %i)\n", \ |
12756 | current_config->name, \ | |
12757 | pipe_config->name); \ | |
cfb23ed6 | 12758 | ret = false; \ |
5e550656 VS |
12759 | } |
12760 | ||
bb760063 DV |
12761 | #define PIPE_CONF_QUIRK(quirk) \ |
12762 | ((current_config->quirks | pipe_config->quirks) & (quirk)) | |
12763 | ||
eccb140b DV |
12764 | PIPE_CONF_CHECK_I(cpu_transcoder); |
12765 | ||
08a24034 DV |
12766 | PIPE_CONF_CHECK_I(has_pch_encoder); |
12767 | PIPE_CONF_CHECK_I(fdi_lanes); | |
cfb23ed6 | 12768 | PIPE_CONF_CHECK_M_N(fdi_m_n); |
08a24034 | 12769 | |
eb14cb74 | 12770 | PIPE_CONF_CHECK_I(has_dp_encoder); |
90a6b7b0 | 12771 | PIPE_CONF_CHECK_I(lane_count); |
b95af8be VK |
12772 | |
12773 | if (INTEL_INFO(dev)->gen < 8) { | |
cfb23ed6 ML |
12774 | PIPE_CONF_CHECK_M_N(dp_m_n); |
12775 | ||
cfb23ed6 ML |
12776 | if (current_config->has_drrs) |
12777 | PIPE_CONF_CHECK_M_N(dp_m2_n2); | |
12778 | } else | |
12779 | PIPE_CONF_CHECK_M_N_ALT(dp_m_n, dp_m2_n2); | |
eb14cb74 | 12780 | |
a65347ba JN |
12781 | PIPE_CONF_CHECK_I(has_dsi_encoder); |
12782 | ||
2d112de7 ACO |
12783 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hdisplay); |
12784 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_htotal); | |
12785 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hblank_start); | |
12786 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hblank_end); | |
12787 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hsync_start); | |
12788 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hsync_end); | |
1bd1bd80 | 12789 | |
2d112de7 ACO |
12790 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vdisplay); |
12791 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vtotal); | |
12792 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vblank_start); | |
12793 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vblank_end); | |
12794 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_start); | |
12795 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_end); | |
1bd1bd80 | 12796 | |
c93f54cf | 12797 | PIPE_CONF_CHECK_I(pixel_multiplier); |
6897b4b5 | 12798 | PIPE_CONF_CHECK_I(has_hdmi_sink); |
b5a9fa09 | 12799 | if ((INTEL_INFO(dev)->gen < 8 && !IS_HASWELL(dev)) || |
666a4537 | 12800 | IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) |
b5a9fa09 | 12801 | PIPE_CONF_CHECK_I(limited_color_range); |
e43823ec | 12802 | PIPE_CONF_CHECK_I(has_infoframe); |
6c49f241 | 12803 | |
9ed109a7 DV |
12804 | PIPE_CONF_CHECK_I(has_audio); |
12805 | ||
2d112de7 | 12806 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
1bd1bd80 DV |
12807 | DRM_MODE_FLAG_INTERLACE); |
12808 | ||
bb760063 | 12809 | if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) { |
2d112de7 | 12810 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 12811 | DRM_MODE_FLAG_PHSYNC); |
2d112de7 | 12812 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 12813 | DRM_MODE_FLAG_NHSYNC); |
2d112de7 | 12814 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 12815 | DRM_MODE_FLAG_PVSYNC); |
2d112de7 | 12816 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 DV |
12817 | DRM_MODE_FLAG_NVSYNC); |
12818 | } | |
045ac3b5 | 12819 | |
333b8ca8 | 12820 | PIPE_CONF_CHECK_X(gmch_pfit.control); |
e2ff2d4a DV |
12821 | /* pfit ratios are autocomputed by the hw on gen4+ */ |
12822 | if (INTEL_INFO(dev)->gen < 4) | |
12823 | PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios); | |
333b8ca8 | 12824 | PIPE_CONF_CHECK_X(gmch_pfit.lvds_border_bits); |
9953599b | 12825 | |
bfd16b2a ML |
12826 | if (!adjust) { |
12827 | PIPE_CONF_CHECK_I(pipe_src_w); | |
12828 | PIPE_CONF_CHECK_I(pipe_src_h); | |
12829 | ||
12830 | PIPE_CONF_CHECK_I(pch_pfit.enabled); | |
12831 | if (current_config->pch_pfit.enabled) { | |
12832 | PIPE_CONF_CHECK_X(pch_pfit.pos); | |
12833 | PIPE_CONF_CHECK_X(pch_pfit.size); | |
12834 | } | |
2fa2fe9a | 12835 | |
7aefe2b5 ML |
12836 | PIPE_CONF_CHECK_I(scaler_state.scaler_id); |
12837 | } | |
a1b2278e | 12838 | |
e59150dc JB |
12839 | /* BDW+ don't expose a synchronous way to read the state */ |
12840 | if (IS_HASWELL(dev)) | |
12841 | PIPE_CONF_CHECK_I(ips_enabled); | |
42db64ef | 12842 | |
282740f7 VS |
12843 | PIPE_CONF_CHECK_I(double_wide); |
12844 | ||
26804afd DV |
12845 | PIPE_CONF_CHECK_X(ddi_pll_sel); |
12846 | ||
c0d43d62 | 12847 | PIPE_CONF_CHECK_I(shared_dpll); |
66e985c0 | 12848 | PIPE_CONF_CHECK_X(dpll_hw_state.dpll); |
8bcc2795 | 12849 | PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md); |
66e985c0 DV |
12850 | PIPE_CONF_CHECK_X(dpll_hw_state.fp0); |
12851 | PIPE_CONF_CHECK_X(dpll_hw_state.fp1); | |
d452c5b6 | 12852 | PIPE_CONF_CHECK_X(dpll_hw_state.wrpll); |
00490c22 | 12853 | PIPE_CONF_CHECK_X(dpll_hw_state.spll); |
3f4cd19f DL |
12854 | PIPE_CONF_CHECK_X(dpll_hw_state.ctrl1); |
12855 | PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr1); | |
12856 | PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr2); | |
c0d43d62 | 12857 | |
42571aef VS |
12858 | if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) |
12859 | PIPE_CONF_CHECK_I(pipe_bpp); | |
12860 | ||
2d112de7 | 12861 | PIPE_CONF_CHECK_CLOCK_FUZZY(base.adjusted_mode.crtc_clock); |
a9a7e98a | 12862 | PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock); |
5e550656 | 12863 | |
66e985c0 | 12864 | #undef PIPE_CONF_CHECK_X |
08a24034 | 12865 | #undef PIPE_CONF_CHECK_I |
b95af8be | 12866 | #undef PIPE_CONF_CHECK_I_ALT |
1bd1bd80 | 12867 | #undef PIPE_CONF_CHECK_FLAGS |
5e550656 | 12868 | #undef PIPE_CONF_CHECK_CLOCK_FUZZY |
bb760063 | 12869 | #undef PIPE_CONF_QUIRK |
cfb23ed6 | 12870 | #undef INTEL_ERR_OR_DBG_KMS |
88adfff1 | 12871 | |
cfb23ed6 | 12872 | return ret; |
0e8ffe1b DV |
12873 | } |
12874 | ||
08db6652 DL |
12875 | static void check_wm_state(struct drm_device *dev) |
12876 | { | |
12877 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12878 | struct skl_ddb_allocation hw_ddb, *sw_ddb; | |
12879 | struct intel_crtc *intel_crtc; | |
12880 | int plane; | |
12881 | ||
12882 | if (INTEL_INFO(dev)->gen < 9) | |
12883 | return; | |
12884 | ||
12885 | skl_ddb_get_hw_state(dev_priv, &hw_ddb); | |
12886 | sw_ddb = &dev_priv->wm.skl_hw.ddb; | |
12887 | ||
12888 | for_each_intel_crtc(dev, intel_crtc) { | |
12889 | struct skl_ddb_entry *hw_entry, *sw_entry; | |
12890 | const enum pipe pipe = intel_crtc->pipe; | |
12891 | ||
12892 | if (!intel_crtc->active) | |
12893 | continue; | |
12894 | ||
12895 | /* planes */ | |
dd740780 | 12896 | for_each_plane(dev_priv, pipe, plane) { |
08db6652 DL |
12897 | hw_entry = &hw_ddb.plane[pipe][plane]; |
12898 | sw_entry = &sw_ddb->plane[pipe][plane]; | |
12899 | ||
12900 | if (skl_ddb_entry_equal(hw_entry, sw_entry)) | |
12901 | continue; | |
12902 | ||
12903 | DRM_ERROR("mismatch in DDB state pipe %c plane %d " | |
12904 | "(expected (%u,%u), found (%u,%u))\n", | |
12905 | pipe_name(pipe), plane + 1, | |
12906 | sw_entry->start, sw_entry->end, | |
12907 | hw_entry->start, hw_entry->end); | |
12908 | } | |
12909 | ||
12910 | /* cursor */ | |
4969d33e MR |
12911 | hw_entry = &hw_ddb.plane[pipe][PLANE_CURSOR]; |
12912 | sw_entry = &sw_ddb->plane[pipe][PLANE_CURSOR]; | |
08db6652 DL |
12913 | |
12914 | if (skl_ddb_entry_equal(hw_entry, sw_entry)) | |
12915 | continue; | |
12916 | ||
12917 | DRM_ERROR("mismatch in DDB state pipe %c cursor " | |
12918 | "(expected (%u,%u), found (%u,%u))\n", | |
12919 | pipe_name(pipe), | |
12920 | sw_entry->start, sw_entry->end, | |
12921 | hw_entry->start, hw_entry->end); | |
12922 | } | |
12923 | } | |
12924 | ||
91d1b4bd | 12925 | static void |
35dd3c64 ML |
12926 | check_connector_state(struct drm_device *dev, |
12927 | struct drm_atomic_state *old_state) | |
8af6cf88 | 12928 | { |
35dd3c64 ML |
12929 | struct drm_connector_state *old_conn_state; |
12930 | struct drm_connector *connector; | |
12931 | int i; | |
8af6cf88 | 12932 | |
35dd3c64 ML |
12933 | for_each_connector_in_state(old_state, connector, old_conn_state, i) { |
12934 | struct drm_encoder *encoder = connector->encoder; | |
12935 | struct drm_connector_state *state = connector->state; | |
ad3c558f | 12936 | |
8af6cf88 DV |
12937 | /* This also checks the encoder/connector hw state with the |
12938 | * ->get_hw_state callbacks. */ | |
35dd3c64 | 12939 | intel_connector_check_state(to_intel_connector(connector)); |
8af6cf88 | 12940 | |
ad3c558f | 12941 | I915_STATE_WARN(state->best_encoder != encoder, |
35dd3c64 | 12942 | "connector's atomic encoder doesn't match legacy encoder\n"); |
8af6cf88 | 12943 | } |
91d1b4bd DV |
12944 | } |
12945 | ||
12946 | static void | |
12947 | check_encoder_state(struct drm_device *dev) | |
12948 | { | |
12949 | struct intel_encoder *encoder; | |
12950 | struct intel_connector *connector; | |
8af6cf88 | 12951 | |
b2784e15 | 12952 | for_each_intel_encoder(dev, encoder) { |
8af6cf88 | 12953 | bool enabled = false; |
4d20cd86 | 12954 | enum pipe pipe; |
8af6cf88 DV |
12955 | |
12956 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", | |
12957 | encoder->base.base.id, | |
8e329a03 | 12958 | encoder->base.name); |
8af6cf88 | 12959 | |
3a3371ff | 12960 | for_each_intel_connector(dev, connector) { |
4d20cd86 | 12961 | if (connector->base.state->best_encoder != &encoder->base) |
8af6cf88 DV |
12962 | continue; |
12963 | enabled = true; | |
ad3c558f ML |
12964 | |
12965 | I915_STATE_WARN(connector->base.state->crtc != | |
12966 | encoder->base.crtc, | |
12967 | "connector's crtc doesn't match encoder crtc\n"); | |
8af6cf88 | 12968 | } |
0e32b39c | 12969 | |
e2c719b7 | 12970 | I915_STATE_WARN(!!encoder->base.crtc != enabled, |
8af6cf88 DV |
12971 | "encoder's enabled state mismatch " |
12972 | "(expected %i, found %i)\n", | |
12973 | !!encoder->base.crtc, enabled); | |
7c60d198 ML |
12974 | |
12975 | if (!encoder->base.crtc) { | |
4d20cd86 | 12976 | bool active; |
7c60d198 | 12977 | |
4d20cd86 ML |
12978 | active = encoder->get_hw_state(encoder, &pipe); |
12979 | I915_STATE_WARN(active, | |
12980 | "encoder detached but still enabled on pipe %c.\n", | |
12981 | pipe_name(pipe)); | |
7c60d198 | 12982 | } |
8af6cf88 | 12983 | } |
91d1b4bd DV |
12984 | } |
12985 | ||
12986 | static void | |
4d20cd86 | 12987 | check_crtc_state(struct drm_device *dev, struct drm_atomic_state *old_state) |
91d1b4bd | 12988 | { |
fbee40df | 12989 | struct drm_i915_private *dev_priv = dev->dev_private; |
91d1b4bd | 12990 | struct intel_encoder *encoder; |
4d20cd86 ML |
12991 | struct drm_crtc_state *old_crtc_state; |
12992 | struct drm_crtc *crtc; | |
12993 | int i; | |
8af6cf88 | 12994 | |
4d20cd86 ML |
12995 | for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { |
12996 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
12997 | struct intel_crtc_state *pipe_config, *sw_config; | |
7b89b8de | 12998 | bool active; |
8af6cf88 | 12999 | |
bfd16b2a ML |
13000 | if (!needs_modeset(crtc->state) && |
13001 | !to_intel_crtc_state(crtc->state)->update_pipe) | |
4d20cd86 | 13002 | continue; |
045ac3b5 | 13003 | |
4d20cd86 ML |
13004 | __drm_atomic_helper_crtc_destroy_state(crtc, old_crtc_state); |
13005 | pipe_config = to_intel_crtc_state(old_crtc_state); | |
13006 | memset(pipe_config, 0, sizeof(*pipe_config)); | |
13007 | pipe_config->base.crtc = crtc; | |
13008 | pipe_config->base.state = old_state; | |
8af6cf88 | 13009 | |
4d20cd86 ML |
13010 | DRM_DEBUG_KMS("[CRTC:%d]\n", |
13011 | crtc->base.id); | |
8af6cf88 | 13012 | |
4d20cd86 ML |
13013 | active = dev_priv->display.get_pipe_config(intel_crtc, |
13014 | pipe_config); | |
d62cf62a | 13015 | |
b6b5d049 | 13016 | /* hw state is inconsistent with the pipe quirk */ |
4d20cd86 ML |
13017 | if ((intel_crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
13018 | (intel_crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
13019 | active = crtc->state->active; | |
6c49f241 | 13020 | |
4d20cd86 | 13021 | I915_STATE_WARN(crtc->state->active != active, |
0e8ffe1b | 13022 | "crtc active state doesn't match with hw state " |
4d20cd86 | 13023 | "(expected %i, found %i)\n", crtc->state->active, active); |
0e8ffe1b | 13024 | |
4d20cd86 | 13025 | I915_STATE_WARN(intel_crtc->active != crtc->state->active, |
53d9f4e9 | 13026 | "transitional active state does not match atomic hw state " |
4d20cd86 ML |
13027 | "(expected %i, found %i)\n", crtc->state->active, intel_crtc->active); |
13028 | ||
13029 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
13030 | enum pipe pipe; | |
13031 | ||
13032 | active = encoder->get_hw_state(encoder, &pipe); | |
13033 | I915_STATE_WARN(active != crtc->state->active, | |
13034 | "[ENCODER:%i] active %i with crtc active %i\n", | |
13035 | encoder->base.base.id, active, crtc->state->active); | |
13036 | ||
13037 | I915_STATE_WARN(active && intel_crtc->pipe != pipe, | |
13038 | "Encoder connected to wrong pipe %c\n", | |
13039 | pipe_name(pipe)); | |
13040 | ||
13041 | if (active) | |
13042 | encoder->get_config(encoder, pipe_config); | |
13043 | } | |
53d9f4e9 | 13044 | |
4d20cd86 | 13045 | if (!crtc->state->active) |
cfb23ed6 ML |
13046 | continue; |
13047 | ||
4d20cd86 ML |
13048 | sw_config = to_intel_crtc_state(crtc->state); |
13049 | if (!intel_pipe_config_compare(dev, sw_config, | |
13050 | pipe_config, false)) { | |
e2c719b7 | 13051 | I915_STATE_WARN(1, "pipe state doesn't match!\n"); |
4d20cd86 | 13052 | intel_dump_pipe_config(intel_crtc, pipe_config, |
c0b03411 | 13053 | "[hw state]"); |
4d20cd86 | 13054 | intel_dump_pipe_config(intel_crtc, sw_config, |
c0b03411 DV |
13055 | "[sw state]"); |
13056 | } | |
8af6cf88 DV |
13057 | } |
13058 | } | |
13059 | ||
91d1b4bd DV |
13060 | static void |
13061 | check_shared_dpll_state(struct drm_device *dev) | |
13062 | { | |
fbee40df | 13063 | struct drm_i915_private *dev_priv = dev->dev_private; |
91d1b4bd DV |
13064 | struct intel_crtc *crtc; |
13065 | struct intel_dpll_hw_state dpll_hw_state; | |
13066 | int i; | |
5358901f DV |
13067 | |
13068 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { | |
13069 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
13070 | int enabled_crtcs = 0, active_crtcs = 0; | |
13071 | bool active; | |
13072 | ||
13073 | memset(&dpll_hw_state, 0, sizeof(dpll_hw_state)); | |
13074 | ||
13075 | DRM_DEBUG_KMS("%s\n", pll->name); | |
13076 | ||
13077 | active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state); | |
13078 | ||
e2c719b7 | 13079 | I915_STATE_WARN(pll->active > hweight32(pll->config.crtc_mask), |
5358901f | 13080 | "more active pll users than references: %i vs %i\n", |
3e369b76 | 13081 | pll->active, hweight32(pll->config.crtc_mask)); |
e2c719b7 | 13082 | I915_STATE_WARN(pll->active && !pll->on, |
5358901f | 13083 | "pll in active use but not on in sw tracking\n"); |
e2c719b7 | 13084 | I915_STATE_WARN(pll->on && !pll->active, |
35c95375 | 13085 | "pll in on but not on in use in sw tracking\n"); |
e2c719b7 | 13086 | I915_STATE_WARN(pll->on != active, |
5358901f DV |
13087 | "pll on state mismatch (expected %i, found %i)\n", |
13088 | pll->on, active); | |
13089 | ||
d3fcc808 | 13090 | for_each_intel_crtc(dev, crtc) { |
83d65738 | 13091 | if (crtc->base.state->enable && intel_crtc_to_shared_dpll(crtc) == pll) |
5358901f DV |
13092 | enabled_crtcs++; |
13093 | if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll) | |
13094 | active_crtcs++; | |
13095 | } | |
e2c719b7 | 13096 | I915_STATE_WARN(pll->active != active_crtcs, |
5358901f DV |
13097 | "pll active crtcs mismatch (expected %i, found %i)\n", |
13098 | pll->active, active_crtcs); | |
e2c719b7 | 13099 | I915_STATE_WARN(hweight32(pll->config.crtc_mask) != enabled_crtcs, |
5358901f | 13100 | "pll enabled crtcs mismatch (expected %i, found %i)\n", |
3e369b76 | 13101 | hweight32(pll->config.crtc_mask), enabled_crtcs); |
66e985c0 | 13102 | |
e2c719b7 | 13103 | I915_STATE_WARN(pll->on && memcmp(&pll->config.hw_state, &dpll_hw_state, |
66e985c0 DV |
13104 | sizeof(dpll_hw_state)), |
13105 | "pll hw state mismatch\n"); | |
5358901f | 13106 | } |
8af6cf88 DV |
13107 | } |
13108 | ||
ee165b1a ML |
13109 | static void |
13110 | intel_modeset_check_state(struct drm_device *dev, | |
13111 | struct drm_atomic_state *old_state) | |
91d1b4bd | 13112 | { |
08db6652 | 13113 | check_wm_state(dev); |
35dd3c64 | 13114 | check_connector_state(dev, old_state); |
91d1b4bd | 13115 | check_encoder_state(dev); |
4d20cd86 | 13116 | check_crtc_state(dev, old_state); |
91d1b4bd DV |
13117 | check_shared_dpll_state(dev); |
13118 | } | |
13119 | ||
5cec258b | 13120 | void ironlake_check_encoder_dotclock(const struct intel_crtc_state *pipe_config, |
18442d08 VS |
13121 | int dotclock) |
13122 | { | |
13123 | /* | |
13124 | * FDI already provided one idea for the dotclock. | |
13125 | * Yell if the encoder disagrees. | |
13126 | */ | |
2d112de7 | 13127 | WARN(!intel_fuzzy_clock_check(pipe_config->base.adjusted_mode.crtc_clock, dotclock), |
18442d08 | 13128 | "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n", |
2d112de7 | 13129 | pipe_config->base.adjusted_mode.crtc_clock, dotclock); |
18442d08 VS |
13130 | } |
13131 | ||
80715b2f VS |
13132 | static void update_scanline_offset(struct intel_crtc *crtc) |
13133 | { | |
13134 | struct drm_device *dev = crtc->base.dev; | |
13135 | ||
13136 | /* | |
13137 | * The scanline counter increments at the leading edge of hsync. | |
13138 | * | |
13139 | * On most platforms it starts counting from vtotal-1 on the | |
13140 | * first active line. That means the scanline counter value is | |
13141 | * always one less than what we would expect. Ie. just after | |
13142 | * start of vblank, which also occurs at start of hsync (on the | |
13143 | * last active line), the scanline counter will read vblank_start-1. | |
13144 | * | |
13145 | * On gen2 the scanline counter starts counting from 1 instead | |
13146 | * of vtotal-1, so we have to subtract one (or rather add vtotal-1 | |
13147 | * to keep the value positive), instead of adding one. | |
13148 | * | |
13149 | * On HSW+ the behaviour of the scanline counter depends on the output | |
13150 | * type. For DP ports it behaves like most other platforms, but on HDMI | |
13151 | * there's an extra 1 line difference. So we need to add two instead of | |
13152 | * one to the value. | |
13153 | */ | |
13154 | if (IS_GEN2(dev)) { | |
124abe07 | 13155 | const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode; |
80715b2f VS |
13156 | int vtotal; |
13157 | ||
124abe07 VS |
13158 | vtotal = adjusted_mode->crtc_vtotal; |
13159 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) | |
80715b2f VS |
13160 | vtotal /= 2; |
13161 | ||
13162 | crtc->scanline_offset = vtotal - 1; | |
13163 | } else if (HAS_DDI(dev) && | |
409ee761 | 13164 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) { |
80715b2f VS |
13165 | crtc->scanline_offset = 2; |
13166 | } else | |
13167 | crtc->scanline_offset = 1; | |
13168 | } | |
13169 | ||
ad421372 | 13170 | static void intel_modeset_clear_plls(struct drm_atomic_state *state) |
ed6739ef | 13171 | { |
225da59b | 13172 | struct drm_device *dev = state->dev; |
ed6739ef | 13173 | struct drm_i915_private *dev_priv = to_i915(dev); |
ad421372 | 13174 | struct intel_shared_dpll_config *shared_dpll = NULL; |
ed6739ef | 13175 | struct intel_crtc *intel_crtc; |
0a9ab303 ACO |
13176 | struct intel_crtc_state *intel_crtc_state; |
13177 | struct drm_crtc *crtc; | |
13178 | struct drm_crtc_state *crtc_state; | |
0a9ab303 | 13179 | int i; |
ed6739ef ACO |
13180 | |
13181 | if (!dev_priv->display.crtc_compute_clock) | |
ad421372 | 13182 | return; |
ed6739ef | 13183 | |
0a9ab303 | 13184 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
ad421372 ML |
13185 | int dpll; |
13186 | ||
0a9ab303 | 13187 | intel_crtc = to_intel_crtc(crtc); |
4978cc93 | 13188 | intel_crtc_state = to_intel_crtc_state(crtc_state); |
ad421372 | 13189 | dpll = intel_crtc_state->shared_dpll; |
0a9ab303 | 13190 | |
ad421372 | 13191 | if (!needs_modeset(crtc_state) || dpll == DPLL_ID_PRIVATE) |
225da59b ACO |
13192 | continue; |
13193 | ||
ad421372 | 13194 | intel_crtc_state->shared_dpll = DPLL_ID_PRIVATE; |
0a9ab303 | 13195 | |
ad421372 ML |
13196 | if (!shared_dpll) |
13197 | shared_dpll = intel_atomic_get_shared_dpll_state(state); | |
ed6739ef | 13198 | |
ad421372 ML |
13199 | shared_dpll[dpll].crtc_mask &= ~(1 << intel_crtc->pipe); |
13200 | } | |
ed6739ef ACO |
13201 | } |
13202 | ||
99d736a2 ML |
13203 | /* |
13204 | * This implements the workaround described in the "notes" section of the mode | |
13205 | * set sequence documentation. When going from no pipes or single pipe to | |
13206 | * multiple pipes, and planes are enabled after the pipe, we need to wait at | |
13207 | * least 2 vblanks on the first pipe before enabling planes on the second pipe. | |
13208 | */ | |
13209 | static int haswell_mode_set_planes_workaround(struct drm_atomic_state *state) | |
13210 | { | |
13211 | struct drm_crtc_state *crtc_state; | |
13212 | struct intel_crtc *intel_crtc; | |
13213 | struct drm_crtc *crtc; | |
13214 | struct intel_crtc_state *first_crtc_state = NULL; | |
13215 | struct intel_crtc_state *other_crtc_state = NULL; | |
13216 | enum pipe first_pipe = INVALID_PIPE, enabled_pipe = INVALID_PIPE; | |
13217 | int i; | |
13218 | ||
13219 | /* look at all crtc's that are going to be enabled in during modeset */ | |
13220 | for_each_crtc_in_state(state, crtc, crtc_state, i) { | |
13221 | intel_crtc = to_intel_crtc(crtc); | |
13222 | ||
13223 | if (!crtc_state->active || !needs_modeset(crtc_state)) | |
13224 | continue; | |
13225 | ||
13226 | if (first_crtc_state) { | |
13227 | other_crtc_state = to_intel_crtc_state(crtc_state); | |
13228 | break; | |
13229 | } else { | |
13230 | first_crtc_state = to_intel_crtc_state(crtc_state); | |
13231 | first_pipe = intel_crtc->pipe; | |
13232 | } | |
13233 | } | |
13234 | ||
13235 | /* No workaround needed? */ | |
13236 | if (!first_crtc_state) | |
13237 | return 0; | |
13238 | ||
13239 | /* w/a possibly needed, check how many crtc's are already enabled. */ | |
13240 | for_each_intel_crtc(state->dev, intel_crtc) { | |
13241 | struct intel_crtc_state *pipe_config; | |
13242 | ||
13243 | pipe_config = intel_atomic_get_crtc_state(state, intel_crtc); | |
13244 | if (IS_ERR(pipe_config)) | |
13245 | return PTR_ERR(pipe_config); | |
13246 | ||
13247 | pipe_config->hsw_workaround_pipe = INVALID_PIPE; | |
13248 | ||
13249 | if (!pipe_config->base.active || | |
13250 | needs_modeset(&pipe_config->base)) | |
13251 | continue; | |
13252 | ||
13253 | /* 2 or more enabled crtcs means no need for w/a */ | |
13254 | if (enabled_pipe != INVALID_PIPE) | |
13255 | return 0; | |
13256 | ||
13257 | enabled_pipe = intel_crtc->pipe; | |
13258 | } | |
13259 | ||
13260 | if (enabled_pipe != INVALID_PIPE) | |
13261 | first_crtc_state->hsw_workaround_pipe = enabled_pipe; | |
13262 | else if (other_crtc_state) | |
13263 | other_crtc_state->hsw_workaround_pipe = first_pipe; | |
13264 | ||
13265 | return 0; | |
13266 | } | |
13267 | ||
27c329ed ML |
13268 | static int intel_modeset_all_pipes(struct drm_atomic_state *state) |
13269 | { | |
13270 | struct drm_crtc *crtc; | |
13271 | struct drm_crtc_state *crtc_state; | |
13272 | int ret = 0; | |
13273 | ||
13274 | /* add all active pipes to the state */ | |
13275 | for_each_crtc(state->dev, crtc) { | |
13276 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
13277 | if (IS_ERR(crtc_state)) | |
13278 | return PTR_ERR(crtc_state); | |
13279 | ||
13280 | if (!crtc_state->active || needs_modeset(crtc_state)) | |
13281 | continue; | |
13282 | ||
13283 | crtc_state->mode_changed = true; | |
13284 | ||
13285 | ret = drm_atomic_add_affected_connectors(state, crtc); | |
13286 | if (ret) | |
13287 | break; | |
13288 | ||
13289 | ret = drm_atomic_add_affected_planes(state, crtc); | |
13290 | if (ret) | |
13291 | break; | |
13292 | } | |
13293 | ||
13294 | return ret; | |
13295 | } | |
13296 | ||
c347a676 | 13297 | static int intel_modeset_checks(struct drm_atomic_state *state) |
054518dd | 13298 | { |
565602d7 ML |
13299 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
13300 | struct drm_i915_private *dev_priv = state->dev->dev_private; | |
13301 | struct drm_crtc *crtc; | |
13302 | struct drm_crtc_state *crtc_state; | |
13303 | int ret = 0, i; | |
054518dd | 13304 | |
b359283a ML |
13305 | if (!check_digital_port_conflicts(state)) { |
13306 | DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n"); | |
13307 | return -EINVAL; | |
13308 | } | |
13309 | ||
565602d7 ML |
13310 | intel_state->modeset = true; |
13311 | intel_state->active_crtcs = dev_priv->active_crtcs; | |
13312 | ||
13313 | for_each_crtc_in_state(state, crtc, crtc_state, i) { | |
13314 | if (crtc_state->active) | |
13315 | intel_state->active_crtcs |= 1 << i; | |
13316 | else | |
13317 | intel_state->active_crtcs &= ~(1 << i); | |
13318 | } | |
13319 | ||
054518dd ACO |
13320 | /* |
13321 | * See if the config requires any additional preparation, e.g. | |
13322 | * to adjust global state with pipes off. We need to do this | |
13323 | * here so we can get the modeset_pipe updated config for the new | |
13324 | * mode set on this crtc. For other crtcs we need to use the | |
13325 | * adjusted_mode bits in the crtc directly. | |
13326 | */ | |
27c329ed | 13327 | if (dev_priv->display.modeset_calc_cdclk) { |
27c329ed ML |
13328 | ret = dev_priv->display.modeset_calc_cdclk(state); |
13329 | ||
1a617b77 | 13330 | if (!ret && intel_state->dev_cdclk != dev_priv->cdclk_freq) |
27c329ed ML |
13331 | ret = intel_modeset_all_pipes(state); |
13332 | ||
13333 | if (ret < 0) | |
054518dd | 13334 | return ret; |
27c329ed | 13335 | } else |
1a617b77 | 13336 | to_intel_atomic_state(state)->cdclk = dev_priv->atomic_cdclk_freq; |
054518dd | 13337 | |
ad421372 | 13338 | intel_modeset_clear_plls(state); |
054518dd | 13339 | |
565602d7 | 13340 | if (IS_HASWELL(dev_priv)) |
ad421372 | 13341 | return haswell_mode_set_planes_workaround(state); |
99d736a2 | 13342 | |
ad421372 | 13343 | return 0; |
c347a676 ACO |
13344 | } |
13345 | ||
aa363136 MR |
13346 | /* |
13347 | * Handle calculation of various watermark data at the end of the atomic check | |
13348 | * phase. The code here should be run after the per-crtc and per-plane 'check' | |
13349 | * handlers to ensure that all derived state has been updated. | |
13350 | */ | |
13351 | static void calc_watermark_data(struct drm_atomic_state *state) | |
13352 | { | |
13353 | struct drm_device *dev = state->dev; | |
13354 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); | |
13355 | struct drm_crtc *crtc; | |
13356 | struct drm_crtc_state *cstate; | |
13357 | struct drm_plane *plane; | |
13358 | struct drm_plane_state *pstate; | |
13359 | ||
13360 | /* | |
13361 | * Calculate watermark configuration details now that derived | |
13362 | * plane/crtc state is all properly updated. | |
13363 | */ | |
13364 | drm_for_each_crtc(crtc, dev) { | |
13365 | cstate = drm_atomic_get_existing_crtc_state(state, crtc) ?: | |
13366 | crtc->state; | |
13367 | ||
13368 | if (cstate->active) | |
13369 | intel_state->wm_config.num_pipes_active++; | |
13370 | } | |
13371 | drm_for_each_legacy_plane(plane, dev) { | |
13372 | pstate = drm_atomic_get_existing_plane_state(state, plane) ?: | |
13373 | plane->state; | |
13374 | ||
13375 | if (!to_intel_plane_state(pstate)->visible) | |
13376 | continue; | |
13377 | ||
13378 | intel_state->wm_config.sprites_enabled = true; | |
13379 | if (pstate->crtc_w != pstate->src_w >> 16 || | |
13380 | pstate->crtc_h != pstate->src_h >> 16) | |
13381 | intel_state->wm_config.sprites_scaled = true; | |
13382 | } | |
13383 | } | |
13384 | ||
74c090b1 ML |
13385 | /** |
13386 | * intel_atomic_check - validate state object | |
13387 | * @dev: drm device | |
13388 | * @state: state to validate | |
13389 | */ | |
13390 | static int intel_atomic_check(struct drm_device *dev, | |
13391 | struct drm_atomic_state *state) | |
c347a676 | 13392 | { |
aa363136 | 13393 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
c347a676 ACO |
13394 | struct drm_crtc *crtc; |
13395 | struct drm_crtc_state *crtc_state; | |
13396 | int ret, i; | |
61333b60 | 13397 | bool any_ms = false; |
c347a676 | 13398 | |
74c090b1 | 13399 | ret = drm_atomic_helper_check_modeset(dev, state); |
054518dd ACO |
13400 | if (ret) |
13401 | return ret; | |
13402 | ||
c347a676 | 13403 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
cfb23ed6 ML |
13404 | struct intel_crtc_state *pipe_config = |
13405 | to_intel_crtc_state(crtc_state); | |
1ed51de9 | 13406 | |
ba8af3e5 ML |
13407 | memset(&to_intel_crtc(crtc)->atomic, 0, |
13408 | sizeof(struct intel_crtc_atomic_commit)); | |
13409 | ||
1ed51de9 DV |
13410 | /* Catch I915_MODE_FLAG_INHERITED */ |
13411 | if (crtc_state->mode.private_flags != crtc->state->mode.private_flags) | |
13412 | crtc_state->mode_changed = true; | |
cfb23ed6 | 13413 | |
61333b60 ML |
13414 | if (!crtc_state->enable) { |
13415 | if (needs_modeset(crtc_state)) | |
13416 | any_ms = true; | |
c347a676 | 13417 | continue; |
61333b60 | 13418 | } |
c347a676 | 13419 | |
26495481 | 13420 | if (!needs_modeset(crtc_state)) |
cfb23ed6 ML |
13421 | continue; |
13422 | ||
26495481 DV |
13423 | /* FIXME: For only active_changed we shouldn't need to do any |
13424 | * state recomputation at all. */ | |
13425 | ||
1ed51de9 DV |
13426 | ret = drm_atomic_add_affected_connectors(state, crtc); |
13427 | if (ret) | |
13428 | return ret; | |
b359283a | 13429 | |
cfb23ed6 | 13430 | ret = intel_modeset_pipe_config(crtc, pipe_config); |
c347a676 ACO |
13431 | if (ret) |
13432 | return ret; | |
13433 | ||
73831236 JN |
13434 | if (i915.fastboot && |
13435 | intel_pipe_config_compare(state->dev, | |
cfb23ed6 | 13436 | to_intel_crtc_state(crtc->state), |
1ed51de9 | 13437 | pipe_config, true)) { |
26495481 | 13438 | crtc_state->mode_changed = false; |
bfd16b2a | 13439 | to_intel_crtc_state(crtc_state)->update_pipe = true; |
26495481 DV |
13440 | } |
13441 | ||
13442 | if (needs_modeset(crtc_state)) { | |
13443 | any_ms = true; | |
cfb23ed6 ML |
13444 | |
13445 | ret = drm_atomic_add_affected_planes(state, crtc); | |
13446 | if (ret) | |
13447 | return ret; | |
13448 | } | |
61333b60 | 13449 | |
26495481 DV |
13450 | intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config, |
13451 | needs_modeset(crtc_state) ? | |
13452 | "[modeset]" : "[fastset]"); | |
c347a676 ACO |
13453 | } |
13454 | ||
61333b60 ML |
13455 | if (any_ms) { |
13456 | ret = intel_modeset_checks(state); | |
13457 | ||
13458 | if (ret) | |
13459 | return ret; | |
27c329ed | 13460 | } else |
aa363136 | 13461 | intel_state->cdclk = to_i915(state->dev)->cdclk_freq; |
76305b1a | 13462 | |
aa363136 MR |
13463 | ret = drm_atomic_helper_check_planes(state->dev, state); |
13464 | if (ret) | |
13465 | return ret; | |
13466 | ||
13467 | calc_watermark_data(state); | |
13468 | ||
13469 | return 0; | |
054518dd ACO |
13470 | } |
13471 | ||
5008e874 ML |
13472 | static int intel_atomic_prepare_commit(struct drm_device *dev, |
13473 | struct drm_atomic_state *state, | |
13474 | bool async) | |
13475 | { | |
7580d774 ML |
13476 | struct drm_i915_private *dev_priv = dev->dev_private; |
13477 | struct drm_plane_state *plane_state; | |
5008e874 | 13478 | struct drm_crtc_state *crtc_state; |
7580d774 | 13479 | struct drm_plane *plane; |
5008e874 ML |
13480 | struct drm_crtc *crtc; |
13481 | int i, ret; | |
13482 | ||
13483 | if (async) { | |
13484 | DRM_DEBUG_KMS("i915 does not yet support async commit\n"); | |
13485 | return -EINVAL; | |
13486 | } | |
13487 | ||
13488 | for_each_crtc_in_state(state, crtc, crtc_state, i) { | |
13489 | ret = intel_crtc_wait_for_pending_flips(crtc); | |
13490 | if (ret) | |
13491 | return ret; | |
7580d774 ML |
13492 | |
13493 | if (atomic_read(&to_intel_crtc(crtc)->unpin_work_count) >= 2) | |
13494 | flush_workqueue(dev_priv->wq); | |
5008e874 ML |
13495 | } |
13496 | ||
f935675f ML |
13497 | ret = mutex_lock_interruptible(&dev->struct_mutex); |
13498 | if (ret) | |
13499 | return ret; | |
13500 | ||
5008e874 | 13501 | ret = drm_atomic_helper_prepare_planes(dev, state); |
7580d774 ML |
13502 | if (!ret && !async && !i915_reset_in_progress(&dev_priv->gpu_error)) { |
13503 | u32 reset_counter; | |
13504 | ||
13505 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); | |
13506 | mutex_unlock(&dev->struct_mutex); | |
13507 | ||
13508 | for_each_plane_in_state(state, plane, plane_state, i) { | |
13509 | struct intel_plane_state *intel_plane_state = | |
13510 | to_intel_plane_state(plane_state); | |
13511 | ||
13512 | if (!intel_plane_state->wait_req) | |
13513 | continue; | |
13514 | ||
13515 | ret = __i915_wait_request(intel_plane_state->wait_req, | |
13516 | reset_counter, true, | |
13517 | NULL, NULL); | |
13518 | ||
13519 | /* Swallow -EIO errors to allow updates during hw lockup. */ | |
13520 | if (ret == -EIO) | |
13521 | ret = 0; | |
13522 | ||
13523 | if (ret) | |
13524 | break; | |
13525 | } | |
13526 | ||
13527 | if (!ret) | |
13528 | return 0; | |
13529 | ||
13530 | mutex_lock(&dev->struct_mutex); | |
13531 | drm_atomic_helper_cleanup_planes(dev, state); | |
13532 | } | |
5008e874 | 13533 | |
f935675f | 13534 | mutex_unlock(&dev->struct_mutex); |
5008e874 ML |
13535 | return ret; |
13536 | } | |
13537 | ||
74c090b1 ML |
13538 | /** |
13539 | * intel_atomic_commit - commit validated state object | |
13540 | * @dev: DRM device | |
13541 | * @state: the top-level driver state object | |
13542 | * @async: asynchronous commit | |
13543 | * | |
13544 | * This function commits a top-level state object that has been validated | |
13545 | * with drm_atomic_helper_check(). | |
13546 | * | |
13547 | * FIXME: Atomic modeset support for i915 is not yet complete. At the moment | |
13548 | * we can only handle plane-related operations and do not yet support | |
13549 | * asynchronous commit. | |
13550 | * | |
13551 | * RETURNS | |
13552 | * Zero for success or -errno. | |
13553 | */ | |
13554 | static int intel_atomic_commit(struct drm_device *dev, | |
13555 | struct drm_atomic_state *state, | |
13556 | bool async) | |
a6778b3c | 13557 | { |
565602d7 | 13558 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
fbee40df | 13559 | struct drm_i915_private *dev_priv = dev->dev_private; |
0a9ab303 | 13560 | struct drm_crtc_state *crtc_state; |
7580d774 | 13561 | struct drm_crtc *crtc; |
396e33ae | 13562 | struct intel_crtc_state *intel_cstate; |
565602d7 ML |
13563 | int ret = 0, i; |
13564 | bool hw_check = intel_state->modeset; | |
a6778b3c | 13565 | |
5008e874 | 13566 | ret = intel_atomic_prepare_commit(dev, state, async); |
7580d774 ML |
13567 | if (ret) { |
13568 | DRM_DEBUG_ATOMIC("Preparing state failed with %i\n", ret); | |
d4afb8cc | 13569 | return ret; |
7580d774 | 13570 | } |
d4afb8cc | 13571 | |
1c5e19f8 | 13572 | drm_atomic_helper_swap_state(dev, state); |
aa363136 | 13573 | dev_priv->wm.config = to_intel_atomic_state(state)->wm_config; |
1c5e19f8 | 13574 | |
565602d7 ML |
13575 | if (intel_state->modeset) { |
13576 | memcpy(dev_priv->min_pixclk, intel_state->min_pixclk, | |
13577 | sizeof(intel_state->min_pixclk)); | |
13578 | dev_priv->active_crtcs = intel_state->active_crtcs; | |
1a617b77 | 13579 | dev_priv->atomic_cdclk_freq = intel_state->cdclk; |
565602d7 ML |
13580 | } |
13581 | ||
0a9ab303 | 13582 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
a539205a ML |
13583 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
13584 | ||
61333b60 ML |
13585 | if (!needs_modeset(crtc->state)) |
13586 | continue; | |
13587 | ||
a539205a | 13588 | intel_pre_plane_update(intel_crtc); |
460da916 | 13589 | |
a539205a ML |
13590 | if (crtc_state->active) { |
13591 | intel_crtc_disable_planes(crtc, crtc_state->plane_mask); | |
13592 | dev_priv->display.crtc_disable(crtc); | |
eddfcbcd ML |
13593 | intel_crtc->active = false; |
13594 | intel_disable_shared_dpll(intel_crtc); | |
9bbc8258 VS |
13595 | |
13596 | /* | |
13597 | * Underruns don't always raise | |
13598 | * interrupts, so check manually. | |
13599 | */ | |
13600 | intel_check_cpu_fifo_underruns(dev_priv); | |
13601 | intel_check_pch_fifo_underruns(dev_priv); | |
b9001114 ML |
13602 | |
13603 | if (!crtc->state->active) | |
13604 | intel_update_watermarks(crtc); | |
a539205a | 13605 | } |
b8cecdf5 | 13606 | } |
7758a113 | 13607 | |
ea9d758d DV |
13608 | /* Only after disabling all output pipelines that will be changed can we |
13609 | * update the the output configuration. */ | |
4740b0f2 | 13610 | intel_modeset_update_crtc_state(state); |
f6e5b160 | 13611 | |
565602d7 | 13612 | if (intel_state->modeset) { |
4740b0f2 ML |
13613 | intel_shared_dpll_commit(state); |
13614 | ||
13615 | drm_atomic_helper_update_legacy_modeset_state(state->dev, state); | |
61333b60 | 13616 | modeset_update_crtc_power_domains(state); |
4740b0f2 | 13617 | } |
47fab737 | 13618 | |
a6778b3c | 13619 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ |
0a9ab303 | 13620 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
f6ac4b2a ML |
13621 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
13622 | bool modeset = needs_modeset(crtc->state); | |
bfd16b2a ML |
13623 | bool update_pipe = !modeset && |
13624 | to_intel_crtc_state(crtc->state)->update_pipe; | |
13625 | unsigned long put_domains = 0; | |
f6ac4b2a | 13626 | |
9f836f90 PJ |
13627 | if (modeset) |
13628 | intel_display_power_get(dev_priv, POWER_DOMAIN_MODESET); | |
13629 | ||
f6ac4b2a | 13630 | if (modeset && crtc->state->active) { |
a539205a ML |
13631 | update_scanline_offset(to_intel_crtc(crtc)); |
13632 | dev_priv->display.crtc_enable(crtc); | |
13633 | } | |
80715b2f | 13634 | |
bfd16b2a ML |
13635 | if (update_pipe) { |
13636 | put_domains = modeset_get_crtc_power_domains(crtc); | |
13637 | ||
13638 | /* make sure intel_modeset_check_state runs */ | |
565602d7 | 13639 | hw_check = true; |
bfd16b2a ML |
13640 | } |
13641 | ||
f6ac4b2a ML |
13642 | if (!modeset) |
13643 | intel_pre_plane_update(intel_crtc); | |
13644 | ||
6173ee28 ML |
13645 | if (crtc->state->active && |
13646 | (crtc->state->planes_changed || update_pipe)) | |
62852622 | 13647 | drm_atomic_helper_commit_planes_on_crtc(crtc_state); |
bfd16b2a ML |
13648 | |
13649 | if (put_domains) | |
13650 | modeset_put_power_domains(dev_priv, put_domains); | |
13651 | ||
f6ac4b2a | 13652 | intel_post_plane_update(intel_crtc); |
9f836f90 PJ |
13653 | |
13654 | if (modeset) | |
13655 | intel_display_power_put(dev_priv, POWER_DOMAIN_MODESET); | |
80715b2f | 13656 | } |
a6778b3c | 13657 | |
a6778b3c | 13658 | /* FIXME: add subpixel order */ |
83a57153 | 13659 | |
74c090b1 | 13660 | drm_atomic_helper_wait_for_vblanks(dev, state); |
f935675f | 13661 | |
396e33ae MR |
13662 | /* |
13663 | * Now that the vblank has passed, we can go ahead and program the | |
13664 | * optimal watermarks on platforms that need two-step watermark | |
13665 | * programming. | |
13666 | * | |
13667 | * TODO: Move this (and other cleanup) to an async worker eventually. | |
13668 | */ | |
13669 | for_each_crtc_in_state(state, crtc, crtc_state, i) { | |
13670 | intel_cstate = to_intel_crtc_state(crtc->state); | |
13671 | ||
13672 | if (dev_priv->display.optimize_watermarks) | |
13673 | dev_priv->display.optimize_watermarks(intel_cstate); | |
13674 | } | |
13675 | ||
f935675f | 13676 | mutex_lock(&dev->struct_mutex); |
d4afb8cc | 13677 | drm_atomic_helper_cleanup_planes(dev, state); |
f935675f | 13678 | mutex_unlock(&dev->struct_mutex); |
2bfb4627 | 13679 | |
565602d7 | 13680 | if (hw_check) |
ee165b1a ML |
13681 | intel_modeset_check_state(dev, state); |
13682 | ||
13683 | drm_atomic_state_free(state); | |
f30da187 | 13684 | |
75714940 MK |
13685 | /* As one of the primary mmio accessors, KMS has a high likelihood |
13686 | * of triggering bugs in unclaimed access. After we finish | |
13687 | * modesetting, see if an error has been flagged, and if so | |
13688 | * enable debugging for the next modeset - and hope we catch | |
13689 | * the culprit. | |
13690 | * | |
13691 | * XXX note that we assume display power is on at this point. | |
13692 | * This might hold true now but we need to add pm helper to check | |
13693 | * unclaimed only when the hardware is on, as atomic commits | |
13694 | * can happen also when the device is completely off. | |
13695 | */ | |
13696 | intel_uncore_arm_unclaimed_mmio_detection(dev_priv); | |
13697 | ||
74c090b1 | 13698 | return 0; |
7f27126e JB |
13699 | } |
13700 | ||
c0c36b94 CW |
13701 | void intel_crtc_restore_mode(struct drm_crtc *crtc) |
13702 | { | |
83a57153 ACO |
13703 | struct drm_device *dev = crtc->dev; |
13704 | struct drm_atomic_state *state; | |
e694eb02 | 13705 | struct drm_crtc_state *crtc_state; |
2bfb4627 | 13706 | int ret; |
83a57153 ACO |
13707 | |
13708 | state = drm_atomic_state_alloc(dev); | |
13709 | if (!state) { | |
e694eb02 | 13710 | DRM_DEBUG_KMS("[CRTC:%d] crtc restore failed, out of memory", |
83a57153 ACO |
13711 | crtc->base.id); |
13712 | return; | |
13713 | } | |
13714 | ||
e694eb02 | 13715 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); |
83a57153 | 13716 | |
e694eb02 ML |
13717 | retry: |
13718 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
13719 | ret = PTR_ERR_OR_ZERO(crtc_state); | |
13720 | if (!ret) { | |
13721 | if (!crtc_state->active) | |
13722 | goto out; | |
83a57153 | 13723 | |
e694eb02 | 13724 | crtc_state->mode_changed = true; |
74c090b1 | 13725 | ret = drm_atomic_commit(state); |
83a57153 ACO |
13726 | } |
13727 | ||
e694eb02 ML |
13728 | if (ret == -EDEADLK) { |
13729 | drm_atomic_state_clear(state); | |
13730 | drm_modeset_backoff(state->acquire_ctx); | |
13731 | goto retry; | |
4ed9fb37 | 13732 | } |
4be07317 | 13733 | |
2bfb4627 | 13734 | if (ret) |
e694eb02 | 13735 | out: |
2bfb4627 | 13736 | drm_atomic_state_free(state); |
c0c36b94 CW |
13737 | } |
13738 | ||
25c5b266 DV |
13739 | #undef for_each_intel_crtc_masked |
13740 | ||
f6e5b160 | 13741 | static const struct drm_crtc_funcs intel_crtc_funcs = { |
f6e5b160 | 13742 | .gamma_set = intel_crtc_gamma_set, |
74c090b1 | 13743 | .set_config = drm_atomic_helper_set_config, |
f6e5b160 CW |
13744 | .destroy = intel_crtc_destroy, |
13745 | .page_flip = intel_crtc_page_flip, | |
1356837e MR |
13746 | .atomic_duplicate_state = intel_crtc_duplicate_state, |
13747 | .atomic_destroy_state = intel_crtc_destroy_state, | |
f6e5b160 CW |
13748 | }; |
13749 | ||
5358901f DV |
13750 | static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv, |
13751 | struct intel_shared_dpll *pll, | |
13752 | struct intel_dpll_hw_state *hw_state) | |
ee7b9f93 | 13753 | { |
5358901f | 13754 | uint32_t val; |
ee7b9f93 | 13755 | |
f458ebbc | 13756 | if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PLLS)) |
bd2bb1b9 PZ |
13757 | return false; |
13758 | ||
5358901f | 13759 | val = I915_READ(PCH_DPLL(pll->id)); |
66e985c0 DV |
13760 | hw_state->dpll = val; |
13761 | hw_state->fp0 = I915_READ(PCH_FP0(pll->id)); | |
13762 | hw_state->fp1 = I915_READ(PCH_FP1(pll->id)); | |
5358901f DV |
13763 | |
13764 | return val & DPLL_VCO_ENABLE; | |
13765 | } | |
13766 | ||
15bdd4cf DV |
13767 | static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv, |
13768 | struct intel_shared_dpll *pll) | |
13769 | { | |
3e369b76 ACO |
13770 | I915_WRITE(PCH_FP0(pll->id), pll->config.hw_state.fp0); |
13771 | I915_WRITE(PCH_FP1(pll->id), pll->config.hw_state.fp1); | |
15bdd4cf DV |
13772 | } |
13773 | ||
e7b903d2 DV |
13774 | static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv, |
13775 | struct intel_shared_dpll *pll) | |
13776 | { | |
e7b903d2 | 13777 | /* PCH refclock must be enabled first */ |
89eff4be | 13778 | ibx_assert_pch_refclk_enabled(dev_priv); |
e7b903d2 | 13779 | |
3e369b76 | 13780 | I915_WRITE(PCH_DPLL(pll->id), pll->config.hw_state.dpll); |
15bdd4cf DV |
13781 | |
13782 | /* Wait for the clocks to stabilize. */ | |
13783 | POSTING_READ(PCH_DPLL(pll->id)); | |
13784 | udelay(150); | |
13785 | ||
13786 | /* The pixel multiplier can only be updated once the | |
13787 | * DPLL is enabled and the clocks are stable. | |
13788 | * | |
13789 | * So write it again. | |
13790 | */ | |
3e369b76 | 13791 | I915_WRITE(PCH_DPLL(pll->id), pll->config.hw_state.dpll); |
15bdd4cf | 13792 | POSTING_READ(PCH_DPLL(pll->id)); |
e7b903d2 DV |
13793 | udelay(200); |
13794 | } | |
13795 | ||
13796 | static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv, | |
13797 | struct intel_shared_dpll *pll) | |
13798 | { | |
13799 | struct drm_device *dev = dev_priv->dev; | |
13800 | struct intel_crtc *crtc; | |
e7b903d2 DV |
13801 | |
13802 | /* Make sure no transcoder isn't still depending on us. */ | |
d3fcc808 | 13803 | for_each_intel_crtc(dev, crtc) { |
e7b903d2 DV |
13804 | if (intel_crtc_to_shared_dpll(crtc) == pll) |
13805 | assert_pch_transcoder_disabled(dev_priv, crtc->pipe); | |
ee7b9f93 JB |
13806 | } |
13807 | ||
15bdd4cf DV |
13808 | I915_WRITE(PCH_DPLL(pll->id), 0); |
13809 | POSTING_READ(PCH_DPLL(pll->id)); | |
e7b903d2 DV |
13810 | udelay(200); |
13811 | } | |
13812 | ||
46edb027 DV |
13813 | static char *ibx_pch_dpll_names[] = { |
13814 | "PCH DPLL A", | |
13815 | "PCH DPLL B", | |
13816 | }; | |
13817 | ||
7c74ade1 | 13818 | static void ibx_pch_dpll_init(struct drm_device *dev) |
ee7b9f93 | 13819 | { |
e7b903d2 | 13820 | struct drm_i915_private *dev_priv = dev->dev_private; |
ee7b9f93 JB |
13821 | int i; |
13822 | ||
7c74ade1 | 13823 | dev_priv->num_shared_dpll = 2; |
ee7b9f93 | 13824 | |
e72f9fbf | 13825 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
46edb027 DV |
13826 | dev_priv->shared_dplls[i].id = i; |
13827 | dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i]; | |
15bdd4cf | 13828 | dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set; |
e7b903d2 DV |
13829 | dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable; |
13830 | dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable; | |
5358901f DV |
13831 | dev_priv->shared_dplls[i].get_hw_state = |
13832 | ibx_pch_dpll_get_hw_state; | |
ee7b9f93 JB |
13833 | } |
13834 | } | |
13835 | ||
7c74ade1 DV |
13836 | static void intel_shared_dpll_init(struct drm_device *dev) |
13837 | { | |
e7b903d2 | 13838 | struct drm_i915_private *dev_priv = dev->dev_private; |
7c74ade1 | 13839 | |
9cd86933 DV |
13840 | if (HAS_DDI(dev)) |
13841 | intel_ddi_pll_init(dev); | |
13842 | else if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
7c74ade1 DV |
13843 | ibx_pch_dpll_init(dev); |
13844 | else | |
13845 | dev_priv->num_shared_dpll = 0; | |
13846 | ||
13847 | BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS); | |
7c74ade1 DV |
13848 | } |
13849 | ||
6beb8c23 MR |
13850 | /** |
13851 | * intel_prepare_plane_fb - Prepare fb for usage on plane | |
13852 | * @plane: drm plane to prepare for | |
13853 | * @fb: framebuffer to prepare for presentation | |
13854 | * | |
13855 | * Prepares a framebuffer for usage on a display plane. Generally this | |
13856 | * involves pinning the underlying object and updating the frontbuffer tracking | |
13857 | * bits. Some older platforms need special physical address handling for | |
13858 | * cursor planes. | |
13859 | * | |
f935675f ML |
13860 | * Must be called with struct_mutex held. |
13861 | * | |
6beb8c23 MR |
13862 | * Returns 0 on success, negative error code on failure. |
13863 | */ | |
13864 | int | |
13865 | intel_prepare_plane_fb(struct drm_plane *plane, | |
d136dfee | 13866 | const struct drm_plane_state *new_state) |
465c120c MR |
13867 | { |
13868 | struct drm_device *dev = plane->dev; | |
844f9111 | 13869 | struct drm_framebuffer *fb = new_state->fb; |
6beb8c23 | 13870 | struct intel_plane *intel_plane = to_intel_plane(plane); |
6beb8c23 | 13871 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
1ee49399 | 13872 | struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->state->fb); |
6beb8c23 | 13873 | int ret = 0; |
465c120c | 13874 | |
1ee49399 | 13875 | if (!obj && !old_obj) |
465c120c MR |
13876 | return 0; |
13877 | ||
5008e874 ML |
13878 | if (old_obj) { |
13879 | struct drm_crtc_state *crtc_state = | |
13880 | drm_atomic_get_existing_crtc_state(new_state->state, plane->state->crtc); | |
13881 | ||
13882 | /* Big Hammer, we also need to ensure that any pending | |
13883 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
13884 | * current scanout is retired before unpinning the old | |
13885 | * framebuffer. Note that we rely on userspace rendering | |
13886 | * into the buffer attached to the pipe they are waiting | |
13887 | * on. If not, userspace generates a GPU hang with IPEHR | |
13888 | * point to the MI_WAIT_FOR_EVENT. | |
13889 | * | |
13890 | * This should only fail upon a hung GPU, in which case we | |
13891 | * can safely continue. | |
13892 | */ | |
13893 | if (needs_modeset(crtc_state)) | |
13894 | ret = i915_gem_object_wait_rendering(old_obj, true); | |
13895 | ||
13896 | /* Swallow -EIO errors to allow updates during hw lockup. */ | |
13897 | if (ret && ret != -EIO) | |
f935675f | 13898 | return ret; |
5008e874 ML |
13899 | } |
13900 | ||
3c28ff22 AG |
13901 | /* For framebuffer backed by dmabuf, wait for fence */ |
13902 | if (obj && obj->base.dma_buf) { | |
bcf8be27 ML |
13903 | long lret; |
13904 | ||
13905 | lret = reservation_object_wait_timeout_rcu(obj->base.dma_buf->resv, | |
13906 | false, true, | |
13907 | MAX_SCHEDULE_TIMEOUT); | |
13908 | if (lret == -ERESTARTSYS) | |
13909 | return lret; | |
3c28ff22 | 13910 | |
bcf8be27 | 13911 | WARN(lret < 0, "waiting returns %li\n", lret); |
3c28ff22 AG |
13912 | } |
13913 | ||
1ee49399 ML |
13914 | if (!obj) { |
13915 | ret = 0; | |
13916 | } else if (plane->type == DRM_PLANE_TYPE_CURSOR && | |
6beb8c23 MR |
13917 | INTEL_INFO(dev)->cursor_needs_physical) { |
13918 | int align = IS_I830(dev) ? 16 * 1024 : 256; | |
13919 | ret = i915_gem_object_attach_phys(obj, align); | |
13920 | if (ret) | |
13921 | DRM_DEBUG_KMS("failed to attach phys object\n"); | |
13922 | } else { | |
7580d774 | 13923 | ret = intel_pin_and_fence_fb_obj(plane, fb, new_state); |
6beb8c23 | 13924 | } |
465c120c | 13925 | |
7580d774 ML |
13926 | if (ret == 0) { |
13927 | if (obj) { | |
13928 | struct intel_plane_state *plane_state = | |
13929 | to_intel_plane_state(new_state); | |
13930 | ||
13931 | i915_gem_request_assign(&plane_state->wait_req, | |
13932 | obj->last_write_req); | |
13933 | } | |
13934 | ||
a9ff8714 | 13935 | i915_gem_track_fb(old_obj, obj, intel_plane->frontbuffer_bit); |
7580d774 | 13936 | } |
fdd508a6 | 13937 | |
6beb8c23 MR |
13938 | return ret; |
13939 | } | |
13940 | ||
38f3ce3a MR |
13941 | /** |
13942 | * intel_cleanup_plane_fb - Cleans up an fb after plane use | |
13943 | * @plane: drm plane to clean up for | |
13944 | * @fb: old framebuffer that was on plane | |
13945 | * | |
13946 | * Cleans up a framebuffer that has just been removed from a plane. | |
f935675f ML |
13947 | * |
13948 | * Must be called with struct_mutex held. | |
38f3ce3a MR |
13949 | */ |
13950 | void | |
13951 | intel_cleanup_plane_fb(struct drm_plane *plane, | |
d136dfee | 13952 | const struct drm_plane_state *old_state) |
38f3ce3a MR |
13953 | { |
13954 | struct drm_device *dev = plane->dev; | |
1ee49399 | 13955 | struct intel_plane *intel_plane = to_intel_plane(plane); |
7580d774 | 13956 | struct intel_plane_state *old_intel_state; |
1ee49399 ML |
13957 | struct drm_i915_gem_object *old_obj = intel_fb_obj(old_state->fb); |
13958 | struct drm_i915_gem_object *obj = intel_fb_obj(plane->state->fb); | |
38f3ce3a | 13959 | |
7580d774 ML |
13960 | old_intel_state = to_intel_plane_state(old_state); |
13961 | ||
1ee49399 | 13962 | if (!obj && !old_obj) |
38f3ce3a MR |
13963 | return; |
13964 | ||
1ee49399 ML |
13965 | if (old_obj && (plane->type != DRM_PLANE_TYPE_CURSOR || |
13966 | !INTEL_INFO(dev)->cursor_needs_physical)) | |
844f9111 | 13967 | intel_unpin_fb_obj(old_state->fb, old_state); |
1ee49399 ML |
13968 | |
13969 | /* prepare_fb aborted? */ | |
13970 | if ((old_obj && (old_obj->frontbuffer_bits & intel_plane->frontbuffer_bit)) || | |
13971 | (obj && !(obj->frontbuffer_bits & intel_plane->frontbuffer_bit))) | |
13972 | i915_gem_track_fb(old_obj, obj, intel_plane->frontbuffer_bit); | |
7580d774 ML |
13973 | |
13974 | i915_gem_request_assign(&old_intel_state->wait_req, NULL); | |
13975 | ||
465c120c MR |
13976 | } |
13977 | ||
6156a456 CK |
13978 | int |
13979 | skl_max_scale(struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state) | |
13980 | { | |
13981 | int max_scale; | |
13982 | struct drm_device *dev; | |
13983 | struct drm_i915_private *dev_priv; | |
13984 | int crtc_clock, cdclk; | |
13985 | ||
bf8a0af0 | 13986 | if (!intel_crtc || !crtc_state->base.enable) |
6156a456 CK |
13987 | return DRM_PLANE_HELPER_NO_SCALING; |
13988 | ||
13989 | dev = intel_crtc->base.dev; | |
13990 | dev_priv = dev->dev_private; | |
13991 | crtc_clock = crtc_state->base.adjusted_mode.crtc_clock; | |
27c329ed | 13992 | cdclk = to_intel_atomic_state(crtc_state->base.state)->cdclk; |
6156a456 | 13993 | |
54bf1ce6 | 13994 | if (WARN_ON_ONCE(!crtc_clock || cdclk < crtc_clock)) |
6156a456 CK |
13995 | return DRM_PLANE_HELPER_NO_SCALING; |
13996 | ||
13997 | /* | |
13998 | * skl max scale is lower of: | |
13999 | * close to 3 but not 3, -1 is for that purpose | |
14000 | * or | |
14001 | * cdclk/crtc_clock | |
14002 | */ | |
14003 | max_scale = min((1 << 16) * 3 - 1, (1 << 8) * ((cdclk << 8) / crtc_clock)); | |
14004 | ||
14005 | return max_scale; | |
14006 | } | |
14007 | ||
465c120c | 14008 | static int |
3c692a41 | 14009 | intel_check_primary_plane(struct drm_plane *plane, |
061e4b8d | 14010 | struct intel_crtc_state *crtc_state, |
3c692a41 GP |
14011 | struct intel_plane_state *state) |
14012 | { | |
2b875c22 MR |
14013 | struct drm_crtc *crtc = state->base.crtc; |
14014 | struct drm_framebuffer *fb = state->base.fb; | |
6156a456 | 14015 | int min_scale = DRM_PLANE_HELPER_NO_SCALING; |
061e4b8d ML |
14016 | int max_scale = DRM_PLANE_HELPER_NO_SCALING; |
14017 | bool can_position = false; | |
465c120c | 14018 | |
061e4b8d ML |
14019 | /* use scaler when colorkey is not required */ |
14020 | if (INTEL_INFO(plane->dev)->gen >= 9 && | |
818ed961 | 14021 | state->ckey.flags == I915_SET_COLORKEY_NONE) { |
061e4b8d ML |
14022 | min_scale = 1; |
14023 | max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state); | |
d8106366 | 14024 | can_position = true; |
6156a456 | 14025 | } |
d8106366 | 14026 | |
061e4b8d ML |
14027 | return drm_plane_helper_check_update(plane, crtc, fb, &state->src, |
14028 | &state->dst, &state->clip, | |
da20eabd ML |
14029 | min_scale, max_scale, |
14030 | can_position, true, | |
14031 | &state->visible); | |
14af293f GP |
14032 | } |
14033 | ||
613d2b27 ML |
14034 | static void intel_begin_crtc_commit(struct drm_crtc *crtc, |
14035 | struct drm_crtc_state *old_crtc_state) | |
3c692a41 | 14036 | { |
32b7eeec | 14037 | struct drm_device *dev = crtc->dev; |
3c692a41 | 14038 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
bfd16b2a ML |
14039 | struct intel_crtc_state *old_intel_state = |
14040 | to_intel_crtc_state(old_crtc_state); | |
14041 | bool modeset = needs_modeset(crtc->state); | |
3c692a41 | 14042 | |
c34c9ee4 | 14043 | /* Perform vblank evasion around commit operation */ |
62852622 | 14044 | intel_pipe_update_start(intel_crtc); |
0583236e | 14045 | |
bfd16b2a ML |
14046 | if (modeset) |
14047 | return; | |
14048 | ||
14049 | if (to_intel_crtc_state(crtc->state)->update_pipe) | |
14050 | intel_update_pipe_config(intel_crtc, old_intel_state); | |
14051 | else if (INTEL_INFO(dev)->gen >= 9) | |
0583236e | 14052 | skl_detach_scalers(intel_crtc); |
32b7eeec MR |
14053 | } |
14054 | ||
613d2b27 ML |
14055 | static void intel_finish_crtc_commit(struct drm_crtc *crtc, |
14056 | struct drm_crtc_state *old_crtc_state) | |
32b7eeec | 14057 | { |
32b7eeec | 14058 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
32b7eeec | 14059 | |
62852622 | 14060 | intel_pipe_update_end(intel_crtc); |
3c692a41 GP |
14061 | } |
14062 | ||
cf4c7c12 | 14063 | /** |
4a3b8769 MR |
14064 | * intel_plane_destroy - destroy a plane |
14065 | * @plane: plane to destroy | |
cf4c7c12 | 14066 | * |
4a3b8769 MR |
14067 | * Common destruction function for all types of planes (primary, cursor, |
14068 | * sprite). | |
cf4c7c12 | 14069 | */ |
4a3b8769 | 14070 | void intel_plane_destroy(struct drm_plane *plane) |
465c120c MR |
14071 | { |
14072 | struct intel_plane *intel_plane = to_intel_plane(plane); | |
14073 | drm_plane_cleanup(plane); | |
14074 | kfree(intel_plane); | |
14075 | } | |
14076 | ||
65a3fea0 | 14077 | const struct drm_plane_funcs intel_plane_funcs = { |
70a101f8 MR |
14078 | .update_plane = drm_atomic_helper_update_plane, |
14079 | .disable_plane = drm_atomic_helper_disable_plane, | |
3d7d6510 | 14080 | .destroy = intel_plane_destroy, |
c196e1d6 | 14081 | .set_property = drm_atomic_helper_plane_set_property, |
a98b3431 MR |
14082 | .atomic_get_property = intel_plane_atomic_get_property, |
14083 | .atomic_set_property = intel_plane_atomic_set_property, | |
ea2c67bb MR |
14084 | .atomic_duplicate_state = intel_plane_duplicate_state, |
14085 | .atomic_destroy_state = intel_plane_destroy_state, | |
14086 | ||
465c120c MR |
14087 | }; |
14088 | ||
14089 | static struct drm_plane *intel_primary_plane_create(struct drm_device *dev, | |
14090 | int pipe) | |
14091 | { | |
14092 | struct intel_plane *primary; | |
8e7d688b | 14093 | struct intel_plane_state *state; |
465c120c | 14094 | const uint32_t *intel_primary_formats; |
45e3743a | 14095 | unsigned int num_formats; |
465c120c MR |
14096 | |
14097 | primary = kzalloc(sizeof(*primary), GFP_KERNEL); | |
14098 | if (primary == NULL) | |
14099 | return NULL; | |
14100 | ||
8e7d688b MR |
14101 | state = intel_create_plane_state(&primary->base); |
14102 | if (!state) { | |
ea2c67bb MR |
14103 | kfree(primary); |
14104 | return NULL; | |
14105 | } | |
8e7d688b | 14106 | primary->base.state = &state->base; |
ea2c67bb | 14107 | |
465c120c MR |
14108 | primary->can_scale = false; |
14109 | primary->max_downscale = 1; | |
6156a456 CK |
14110 | if (INTEL_INFO(dev)->gen >= 9) { |
14111 | primary->can_scale = true; | |
af99ceda | 14112 | state->scaler_id = -1; |
6156a456 | 14113 | } |
465c120c MR |
14114 | primary->pipe = pipe; |
14115 | primary->plane = pipe; | |
a9ff8714 | 14116 | primary->frontbuffer_bit = INTEL_FRONTBUFFER_PRIMARY(pipe); |
c59cb179 | 14117 | primary->check_plane = intel_check_primary_plane; |
465c120c MR |
14118 | if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) |
14119 | primary->plane = !pipe; | |
14120 | ||
6c0fd451 DL |
14121 | if (INTEL_INFO(dev)->gen >= 9) { |
14122 | intel_primary_formats = skl_primary_formats; | |
14123 | num_formats = ARRAY_SIZE(skl_primary_formats); | |
a8d201af ML |
14124 | |
14125 | primary->update_plane = skylake_update_primary_plane; | |
14126 | primary->disable_plane = skylake_disable_primary_plane; | |
14127 | } else if (HAS_PCH_SPLIT(dev)) { | |
14128 | intel_primary_formats = i965_primary_formats; | |
14129 | num_formats = ARRAY_SIZE(i965_primary_formats); | |
14130 | ||
14131 | primary->update_plane = ironlake_update_primary_plane; | |
14132 | primary->disable_plane = i9xx_disable_primary_plane; | |
6c0fd451 | 14133 | } else if (INTEL_INFO(dev)->gen >= 4) { |
568db4f2 DL |
14134 | intel_primary_formats = i965_primary_formats; |
14135 | num_formats = ARRAY_SIZE(i965_primary_formats); | |
a8d201af ML |
14136 | |
14137 | primary->update_plane = i9xx_update_primary_plane; | |
14138 | primary->disable_plane = i9xx_disable_primary_plane; | |
6c0fd451 DL |
14139 | } else { |
14140 | intel_primary_formats = i8xx_primary_formats; | |
14141 | num_formats = ARRAY_SIZE(i8xx_primary_formats); | |
a8d201af ML |
14142 | |
14143 | primary->update_plane = i9xx_update_primary_plane; | |
14144 | primary->disable_plane = i9xx_disable_primary_plane; | |
465c120c MR |
14145 | } |
14146 | ||
14147 | drm_universal_plane_init(dev, &primary->base, 0, | |
65a3fea0 | 14148 | &intel_plane_funcs, |
465c120c MR |
14149 | intel_primary_formats, num_formats, |
14150 | DRM_PLANE_TYPE_PRIMARY); | |
48404c1e | 14151 | |
3b7a5119 SJ |
14152 | if (INTEL_INFO(dev)->gen >= 4) |
14153 | intel_create_rotation_property(dev, primary); | |
48404c1e | 14154 | |
ea2c67bb MR |
14155 | drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs); |
14156 | ||
465c120c MR |
14157 | return &primary->base; |
14158 | } | |
14159 | ||
3b7a5119 SJ |
14160 | void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane) |
14161 | { | |
14162 | if (!dev->mode_config.rotation_property) { | |
14163 | unsigned long flags = BIT(DRM_ROTATE_0) | | |
14164 | BIT(DRM_ROTATE_180); | |
14165 | ||
14166 | if (INTEL_INFO(dev)->gen >= 9) | |
14167 | flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270); | |
14168 | ||
14169 | dev->mode_config.rotation_property = | |
14170 | drm_mode_create_rotation_property(dev, flags); | |
14171 | } | |
14172 | if (dev->mode_config.rotation_property) | |
14173 | drm_object_attach_property(&plane->base.base, | |
14174 | dev->mode_config.rotation_property, | |
14175 | plane->base.state->rotation); | |
14176 | } | |
14177 | ||
3d7d6510 | 14178 | static int |
852e787c | 14179 | intel_check_cursor_plane(struct drm_plane *plane, |
061e4b8d | 14180 | struct intel_crtc_state *crtc_state, |
852e787c | 14181 | struct intel_plane_state *state) |
3d7d6510 | 14182 | { |
061e4b8d | 14183 | struct drm_crtc *crtc = crtc_state->base.crtc; |
2b875c22 | 14184 | struct drm_framebuffer *fb = state->base.fb; |
757f9a3e | 14185 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
b29ec92c | 14186 | enum pipe pipe = to_intel_plane(plane)->pipe; |
757f9a3e GP |
14187 | unsigned stride; |
14188 | int ret; | |
3d7d6510 | 14189 | |
061e4b8d ML |
14190 | ret = drm_plane_helper_check_update(plane, crtc, fb, &state->src, |
14191 | &state->dst, &state->clip, | |
3d7d6510 MR |
14192 | DRM_PLANE_HELPER_NO_SCALING, |
14193 | DRM_PLANE_HELPER_NO_SCALING, | |
852e787c | 14194 | true, true, &state->visible); |
757f9a3e GP |
14195 | if (ret) |
14196 | return ret; | |
14197 | ||
757f9a3e GP |
14198 | /* if we want to turn off the cursor ignore width and height */ |
14199 | if (!obj) | |
da20eabd | 14200 | return 0; |
757f9a3e | 14201 | |
757f9a3e | 14202 | /* Check for which cursor types we support */ |
061e4b8d | 14203 | if (!cursor_size_ok(plane->dev, state->base.crtc_w, state->base.crtc_h)) { |
ea2c67bb MR |
14204 | DRM_DEBUG("Cursor dimension %dx%d not supported\n", |
14205 | state->base.crtc_w, state->base.crtc_h); | |
757f9a3e GP |
14206 | return -EINVAL; |
14207 | } | |
14208 | ||
ea2c67bb MR |
14209 | stride = roundup_pow_of_two(state->base.crtc_w) * 4; |
14210 | if (obj->base.size < stride * state->base.crtc_h) { | |
757f9a3e GP |
14211 | DRM_DEBUG_KMS("buffer is too small\n"); |
14212 | return -ENOMEM; | |
14213 | } | |
14214 | ||
3a656b54 | 14215 | if (fb->modifier[0] != DRM_FORMAT_MOD_NONE) { |
757f9a3e | 14216 | DRM_DEBUG_KMS("cursor cannot be tiled\n"); |
da20eabd | 14217 | return -EINVAL; |
32b7eeec MR |
14218 | } |
14219 | ||
b29ec92c VS |
14220 | /* |
14221 | * There's something wrong with the cursor on CHV pipe C. | |
14222 | * If it straddles the left edge of the screen then | |
14223 | * moving it away from the edge or disabling it often | |
14224 | * results in a pipe underrun, and often that can lead to | |
14225 | * dead pipe (constant underrun reported, and it scans | |
14226 | * out just a solid color). To recover from that, the | |
14227 | * display power well must be turned off and on again. | |
14228 | * Refuse the put the cursor into that compromised position. | |
14229 | */ | |
14230 | if (IS_CHERRYVIEW(plane->dev) && pipe == PIPE_C && | |
14231 | state->visible && state->base.crtc_x < 0) { | |
14232 | DRM_DEBUG_KMS("CHV cursor C not allowed to straddle the left screen edge\n"); | |
14233 | return -EINVAL; | |
14234 | } | |
14235 | ||
da20eabd | 14236 | return 0; |
852e787c | 14237 | } |
3d7d6510 | 14238 | |
a8ad0d8e ML |
14239 | static void |
14240 | intel_disable_cursor_plane(struct drm_plane *plane, | |
7fabf5ef | 14241 | struct drm_crtc *crtc) |
a8ad0d8e | 14242 | { |
f2858021 ML |
14243 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
14244 | ||
14245 | intel_crtc->cursor_addr = 0; | |
55a08b3f | 14246 | intel_crtc_update_cursor(crtc, NULL); |
a8ad0d8e ML |
14247 | } |
14248 | ||
f4a2cf29 | 14249 | static void |
55a08b3f ML |
14250 | intel_update_cursor_plane(struct drm_plane *plane, |
14251 | const struct intel_crtc_state *crtc_state, | |
14252 | const struct intel_plane_state *state) | |
852e787c | 14253 | { |
55a08b3f ML |
14254 | struct drm_crtc *crtc = crtc_state->base.crtc; |
14255 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ea2c67bb | 14256 | struct drm_device *dev = plane->dev; |
2b875c22 | 14257 | struct drm_i915_gem_object *obj = intel_fb_obj(state->base.fb); |
a912f12f | 14258 | uint32_t addr; |
852e787c | 14259 | |
f4a2cf29 | 14260 | if (!obj) |
a912f12f | 14261 | addr = 0; |
f4a2cf29 | 14262 | else if (!INTEL_INFO(dev)->cursor_needs_physical) |
a912f12f | 14263 | addr = i915_gem_obj_ggtt_offset(obj); |
f4a2cf29 | 14264 | else |
a912f12f | 14265 | addr = obj->phys_handle->busaddr; |
852e787c | 14266 | |
a912f12f | 14267 | intel_crtc->cursor_addr = addr; |
55a08b3f | 14268 | intel_crtc_update_cursor(crtc, state); |
852e787c GP |
14269 | } |
14270 | ||
3d7d6510 MR |
14271 | static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev, |
14272 | int pipe) | |
14273 | { | |
14274 | struct intel_plane *cursor; | |
8e7d688b | 14275 | struct intel_plane_state *state; |
3d7d6510 MR |
14276 | |
14277 | cursor = kzalloc(sizeof(*cursor), GFP_KERNEL); | |
14278 | if (cursor == NULL) | |
14279 | return NULL; | |
14280 | ||
8e7d688b MR |
14281 | state = intel_create_plane_state(&cursor->base); |
14282 | if (!state) { | |
ea2c67bb MR |
14283 | kfree(cursor); |
14284 | return NULL; | |
14285 | } | |
8e7d688b | 14286 | cursor->base.state = &state->base; |
ea2c67bb | 14287 | |
3d7d6510 MR |
14288 | cursor->can_scale = false; |
14289 | cursor->max_downscale = 1; | |
14290 | cursor->pipe = pipe; | |
14291 | cursor->plane = pipe; | |
a9ff8714 | 14292 | cursor->frontbuffer_bit = INTEL_FRONTBUFFER_CURSOR(pipe); |
c59cb179 | 14293 | cursor->check_plane = intel_check_cursor_plane; |
55a08b3f | 14294 | cursor->update_plane = intel_update_cursor_plane; |
a8ad0d8e | 14295 | cursor->disable_plane = intel_disable_cursor_plane; |
3d7d6510 MR |
14296 | |
14297 | drm_universal_plane_init(dev, &cursor->base, 0, | |
65a3fea0 | 14298 | &intel_plane_funcs, |
3d7d6510 MR |
14299 | intel_cursor_formats, |
14300 | ARRAY_SIZE(intel_cursor_formats), | |
14301 | DRM_PLANE_TYPE_CURSOR); | |
4398ad45 VS |
14302 | |
14303 | if (INTEL_INFO(dev)->gen >= 4) { | |
14304 | if (!dev->mode_config.rotation_property) | |
14305 | dev->mode_config.rotation_property = | |
14306 | drm_mode_create_rotation_property(dev, | |
14307 | BIT(DRM_ROTATE_0) | | |
14308 | BIT(DRM_ROTATE_180)); | |
14309 | if (dev->mode_config.rotation_property) | |
14310 | drm_object_attach_property(&cursor->base.base, | |
14311 | dev->mode_config.rotation_property, | |
8e7d688b | 14312 | state->base.rotation); |
4398ad45 VS |
14313 | } |
14314 | ||
af99ceda CK |
14315 | if (INTEL_INFO(dev)->gen >=9) |
14316 | state->scaler_id = -1; | |
14317 | ||
ea2c67bb MR |
14318 | drm_plane_helper_add(&cursor->base, &intel_plane_helper_funcs); |
14319 | ||
3d7d6510 MR |
14320 | return &cursor->base; |
14321 | } | |
14322 | ||
549e2bfb CK |
14323 | static void skl_init_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc, |
14324 | struct intel_crtc_state *crtc_state) | |
14325 | { | |
14326 | int i; | |
14327 | struct intel_scaler *intel_scaler; | |
14328 | struct intel_crtc_scaler_state *scaler_state = &crtc_state->scaler_state; | |
14329 | ||
14330 | for (i = 0; i < intel_crtc->num_scalers; i++) { | |
14331 | intel_scaler = &scaler_state->scalers[i]; | |
14332 | intel_scaler->in_use = 0; | |
549e2bfb CK |
14333 | intel_scaler->mode = PS_SCALER_MODE_DYN; |
14334 | } | |
14335 | ||
14336 | scaler_state->scaler_id = -1; | |
14337 | } | |
14338 | ||
b358d0a6 | 14339 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 14340 | { |
fbee40df | 14341 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 14342 | struct intel_crtc *intel_crtc; |
f5de6e07 | 14343 | struct intel_crtc_state *crtc_state = NULL; |
3d7d6510 MR |
14344 | struct drm_plane *primary = NULL; |
14345 | struct drm_plane *cursor = NULL; | |
465c120c | 14346 | int i, ret; |
79e53945 | 14347 | |
955382f3 | 14348 | intel_crtc = kzalloc(sizeof(*intel_crtc), GFP_KERNEL); |
79e53945 JB |
14349 | if (intel_crtc == NULL) |
14350 | return; | |
14351 | ||
f5de6e07 ACO |
14352 | crtc_state = kzalloc(sizeof(*crtc_state), GFP_KERNEL); |
14353 | if (!crtc_state) | |
14354 | goto fail; | |
550acefd ACO |
14355 | intel_crtc->config = crtc_state; |
14356 | intel_crtc->base.state = &crtc_state->base; | |
07878248 | 14357 | crtc_state->base.crtc = &intel_crtc->base; |
f5de6e07 | 14358 | |
549e2bfb CK |
14359 | /* initialize shared scalers */ |
14360 | if (INTEL_INFO(dev)->gen >= 9) { | |
14361 | if (pipe == PIPE_C) | |
14362 | intel_crtc->num_scalers = 1; | |
14363 | else | |
14364 | intel_crtc->num_scalers = SKL_NUM_SCALERS; | |
14365 | ||
14366 | skl_init_scalers(dev, intel_crtc, crtc_state); | |
14367 | } | |
14368 | ||
465c120c | 14369 | primary = intel_primary_plane_create(dev, pipe); |
3d7d6510 MR |
14370 | if (!primary) |
14371 | goto fail; | |
14372 | ||
14373 | cursor = intel_cursor_plane_create(dev, pipe); | |
14374 | if (!cursor) | |
14375 | goto fail; | |
14376 | ||
465c120c | 14377 | ret = drm_crtc_init_with_planes(dev, &intel_crtc->base, primary, |
3d7d6510 MR |
14378 | cursor, &intel_crtc_funcs); |
14379 | if (ret) | |
14380 | goto fail; | |
79e53945 JB |
14381 | |
14382 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
14383 | for (i = 0; i < 256; i++) { |
14384 | intel_crtc->lut_r[i] = i; | |
14385 | intel_crtc->lut_g[i] = i; | |
14386 | intel_crtc->lut_b[i] = i; | |
14387 | } | |
14388 | ||
1f1c2e24 VS |
14389 | /* |
14390 | * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port | |
8c0f92e1 | 14391 | * is hooked to pipe B. Hence we want plane A feeding pipe B. |
1f1c2e24 | 14392 | */ |
80824003 JB |
14393 | intel_crtc->pipe = pipe; |
14394 | intel_crtc->plane = pipe; | |
3a77c4c4 | 14395 | if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) { |
28c97730 | 14396 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 14397 | intel_crtc->plane = !pipe; |
80824003 JB |
14398 | } |
14399 | ||
4b0e333e CW |
14400 | intel_crtc->cursor_base = ~0; |
14401 | intel_crtc->cursor_cntl = ~0; | |
dc41c154 | 14402 | intel_crtc->cursor_size = ~0; |
8d7849db | 14403 | |
852eb00d VS |
14404 | intel_crtc->wm.cxsr_allowed = true; |
14405 | ||
22fd0fab JB |
14406 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
14407 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
14408 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
14409 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
14410 | ||
79e53945 | 14411 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
87b6b101 DV |
14412 | |
14413 | WARN_ON(drm_crtc_index(&intel_crtc->base) != intel_crtc->pipe); | |
3d7d6510 MR |
14414 | return; |
14415 | ||
14416 | fail: | |
14417 | if (primary) | |
14418 | drm_plane_cleanup(primary); | |
14419 | if (cursor) | |
14420 | drm_plane_cleanup(cursor); | |
f5de6e07 | 14421 | kfree(crtc_state); |
3d7d6510 | 14422 | kfree(intel_crtc); |
79e53945 JB |
14423 | } |
14424 | ||
752aa88a JB |
14425 | enum pipe intel_get_pipe_from_connector(struct intel_connector *connector) |
14426 | { | |
14427 | struct drm_encoder *encoder = connector->base.encoder; | |
6e9f798d | 14428 | struct drm_device *dev = connector->base.dev; |
752aa88a | 14429 | |
51fd371b | 14430 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
752aa88a | 14431 | |
d3babd3f | 14432 | if (!encoder || WARN_ON(!encoder->crtc)) |
752aa88a JB |
14433 | return INVALID_PIPE; |
14434 | ||
14435 | return to_intel_crtc(encoder->crtc)->pipe; | |
14436 | } | |
14437 | ||
08d7b3d1 | 14438 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 14439 | struct drm_file *file) |
08d7b3d1 | 14440 | { |
08d7b3d1 | 14441 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
7707e653 | 14442 | struct drm_crtc *drmmode_crtc; |
c05422d5 | 14443 | struct intel_crtc *crtc; |
08d7b3d1 | 14444 | |
7707e653 | 14445 | drmmode_crtc = drm_crtc_find(dev, pipe_from_crtc_id->crtc_id); |
08d7b3d1 | 14446 | |
7707e653 | 14447 | if (!drmmode_crtc) { |
08d7b3d1 | 14448 | DRM_ERROR("no such CRTC id\n"); |
3f2c2057 | 14449 | return -ENOENT; |
08d7b3d1 CW |
14450 | } |
14451 | ||
7707e653 | 14452 | crtc = to_intel_crtc(drmmode_crtc); |
c05422d5 | 14453 | pipe_from_crtc_id->pipe = crtc->pipe; |
08d7b3d1 | 14454 | |
c05422d5 | 14455 | return 0; |
08d7b3d1 CW |
14456 | } |
14457 | ||
66a9278e | 14458 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 14459 | { |
66a9278e DV |
14460 | struct drm_device *dev = encoder->base.dev; |
14461 | struct intel_encoder *source_encoder; | |
79e53945 | 14462 | int index_mask = 0; |
79e53945 JB |
14463 | int entry = 0; |
14464 | ||
b2784e15 | 14465 | for_each_intel_encoder(dev, source_encoder) { |
bc079e8b | 14466 | if (encoders_cloneable(encoder, source_encoder)) |
66a9278e DV |
14467 | index_mask |= (1 << entry); |
14468 | ||
79e53945 JB |
14469 | entry++; |
14470 | } | |
4ef69c7a | 14471 | |
79e53945 JB |
14472 | return index_mask; |
14473 | } | |
14474 | ||
4d302442 CW |
14475 | static bool has_edp_a(struct drm_device *dev) |
14476 | { | |
14477 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14478 | ||
14479 | if (!IS_MOBILE(dev)) | |
14480 | return false; | |
14481 | ||
14482 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
14483 | return false; | |
14484 | ||
e3589908 | 14485 | if (IS_GEN5(dev) && (I915_READ(FUSE_STRAP) & ILK_eDP_A_DISABLE)) |
4d302442 CW |
14486 | return false; |
14487 | ||
14488 | return true; | |
14489 | } | |
14490 | ||
84b4e042 JB |
14491 | static bool intel_crt_present(struct drm_device *dev) |
14492 | { | |
14493 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14494 | ||
884497ed DL |
14495 | if (INTEL_INFO(dev)->gen >= 9) |
14496 | return false; | |
14497 | ||
cf404ce4 | 14498 | if (IS_HSW_ULT(dev) || IS_BDW_ULT(dev)) |
84b4e042 JB |
14499 | return false; |
14500 | ||
14501 | if (IS_CHERRYVIEW(dev)) | |
14502 | return false; | |
14503 | ||
65e472e4 VS |
14504 | if (HAS_PCH_LPT_H(dev) && I915_READ(SFUSE_STRAP) & SFUSE_STRAP_CRT_DISABLED) |
14505 | return false; | |
14506 | ||
70ac54d0 VS |
14507 | /* DDI E can't be used if DDI A requires 4 lanes */ |
14508 | if (HAS_DDI(dev) && I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES) | |
14509 | return false; | |
14510 | ||
e4abb733 | 14511 | if (!dev_priv->vbt.int_crt_support) |
84b4e042 JB |
14512 | return false; |
14513 | ||
14514 | return true; | |
14515 | } | |
14516 | ||
79e53945 JB |
14517 | static void intel_setup_outputs(struct drm_device *dev) |
14518 | { | |
725e30ad | 14519 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 14520 | struct intel_encoder *encoder; |
cb0953d7 | 14521 | bool dpd_is_edp = false; |
79e53945 | 14522 | |
c9093354 | 14523 | intel_lvds_init(dev); |
79e53945 | 14524 | |
84b4e042 | 14525 | if (intel_crt_present(dev)) |
79935fca | 14526 | intel_crt_init(dev); |
cb0953d7 | 14527 | |
c776eb2e VK |
14528 | if (IS_BROXTON(dev)) { |
14529 | /* | |
14530 | * FIXME: Broxton doesn't support port detection via the | |
14531 | * DDI_BUF_CTL_A or SFUSE_STRAP registers, find another way to | |
14532 | * detect the ports. | |
14533 | */ | |
14534 | intel_ddi_init(dev, PORT_A); | |
14535 | intel_ddi_init(dev, PORT_B); | |
14536 | intel_ddi_init(dev, PORT_C); | |
14537 | } else if (HAS_DDI(dev)) { | |
0e72a5b5 ED |
14538 | int found; |
14539 | ||
de31facd JB |
14540 | /* |
14541 | * Haswell uses DDI functions to detect digital outputs. | |
14542 | * On SKL pre-D0 the strap isn't connected, so we assume | |
14543 | * it's there. | |
14544 | */ | |
77179400 | 14545 | found = I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_INIT_DISPLAY_DETECTED; |
de31facd | 14546 | /* WaIgnoreDDIAStrap: skl */ |
ef11bdb3 | 14547 | if (found || IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) |
0e72a5b5 ED |
14548 | intel_ddi_init(dev, PORT_A); |
14549 | ||
14550 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
14551 | * register */ | |
14552 | found = I915_READ(SFUSE_STRAP); | |
14553 | ||
14554 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
14555 | intel_ddi_init(dev, PORT_B); | |
14556 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
14557 | intel_ddi_init(dev, PORT_C); | |
14558 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
14559 | intel_ddi_init(dev, PORT_D); | |
2800e4c2 RV |
14560 | /* |
14561 | * On SKL we don't have a way to detect DDI-E so we rely on VBT. | |
14562 | */ | |
ef11bdb3 | 14563 | if ((IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) && |
2800e4c2 RV |
14564 | (dev_priv->vbt.ddi_port_info[PORT_E].supports_dp || |
14565 | dev_priv->vbt.ddi_port_info[PORT_E].supports_dvi || | |
14566 | dev_priv->vbt.ddi_port_info[PORT_E].supports_hdmi)) | |
14567 | intel_ddi_init(dev, PORT_E); | |
14568 | ||
0e72a5b5 | 14569 | } else if (HAS_PCH_SPLIT(dev)) { |
cb0953d7 | 14570 | int found; |
5d8a7752 | 14571 | dpd_is_edp = intel_dp_is_edp(dev, PORT_D); |
270b3042 DV |
14572 | |
14573 | if (has_edp_a(dev)) | |
14574 | intel_dp_init(dev, DP_A, PORT_A); | |
cb0953d7 | 14575 | |
dc0fa718 | 14576 | if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) { |
461ed3ca | 14577 | /* PCH SDVOB multiplex with HDMIB */ |
2a5c0832 | 14578 | found = intel_sdvo_init(dev, PCH_SDVOB, PORT_B); |
30ad48b7 | 14579 | if (!found) |
e2debe91 | 14580 | intel_hdmi_init(dev, PCH_HDMIB, PORT_B); |
5eb08b69 | 14581 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 14582 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
14583 | } |
14584 | ||
dc0fa718 | 14585 | if (I915_READ(PCH_HDMIC) & SDVO_DETECTED) |
e2debe91 | 14586 | intel_hdmi_init(dev, PCH_HDMIC, PORT_C); |
30ad48b7 | 14587 | |
dc0fa718 | 14588 | if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED) |
e2debe91 | 14589 | intel_hdmi_init(dev, PCH_HDMID, PORT_D); |
30ad48b7 | 14590 | |
5eb08b69 | 14591 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 14592 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 14593 | |
270b3042 | 14594 | if (I915_READ(PCH_DP_D) & DP_DETECTED) |
ab9d7c30 | 14595 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
666a4537 | 14596 | } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
e17ac6db VS |
14597 | /* |
14598 | * The DP_DETECTED bit is the latched state of the DDC | |
14599 | * SDA pin at boot. However since eDP doesn't require DDC | |
14600 | * (no way to plug in a DP->HDMI dongle) the DDC pins for | |
14601 | * eDP ports may have been muxed to an alternate function. | |
14602 | * Thus we can't rely on the DP_DETECTED bit alone to detect | |
14603 | * eDP ports. Consult the VBT as well as DP_DETECTED to | |
14604 | * detect eDP ports. | |
14605 | */ | |
e66eb81d | 14606 | if (I915_READ(VLV_HDMIB) & SDVO_DETECTED && |
d2182a66 | 14607 | !intel_dp_is_edp(dev, PORT_B)) |
e66eb81d VS |
14608 | intel_hdmi_init(dev, VLV_HDMIB, PORT_B); |
14609 | if (I915_READ(VLV_DP_B) & DP_DETECTED || | |
e17ac6db | 14610 | intel_dp_is_edp(dev, PORT_B)) |
e66eb81d | 14611 | intel_dp_init(dev, VLV_DP_B, PORT_B); |
585a94b8 | 14612 | |
e66eb81d | 14613 | if (I915_READ(VLV_HDMIC) & SDVO_DETECTED && |
d2182a66 | 14614 | !intel_dp_is_edp(dev, PORT_C)) |
e66eb81d VS |
14615 | intel_hdmi_init(dev, VLV_HDMIC, PORT_C); |
14616 | if (I915_READ(VLV_DP_C) & DP_DETECTED || | |
e17ac6db | 14617 | intel_dp_is_edp(dev, PORT_C)) |
e66eb81d | 14618 | intel_dp_init(dev, VLV_DP_C, PORT_C); |
19c03924 | 14619 | |
9418c1f1 | 14620 | if (IS_CHERRYVIEW(dev)) { |
e17ac6db | 14621 | /* eDP not supported on port D, so don't check VBT */ |
e66eb81d VS |
14622 | if (I915_READ(CHV_HDMID) & SDVO_DETECTED) |
14623 | intel_hdmi_init(dev, CHV_HDMID, PORT_D); | |
14624 | if (I915_READ(CHV_DP_D) & DP_DETECTED) | |
14625 | intel_dp_init(dev, CHV_DP_D, PORT_D); | |
9418c1f1 VS |
14626 | } |
14627 | ||
3cfca973 | 14628 | intel_dsi_init(dev); |
09da55dc | 14629 | } else if (!IS_GEN2(dev) && !IS_PINEVIEW(dev)) { |
27185ae1 | 14630 | bool found = false; |
7d57382e | 14631 | |
e2debe91 | 14632 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 14633 | DRM_DEBUG_KMS("probing SDVOB\n"); |
2a5c0832 | 14634 | found = intel_sdvo_init(dev, GEN3_SDVOB, PORT_B); |
3fec3d2f | 14635 | if (!found && IS_G4X(dev)) { |
b01f2c3a | 14636 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); |
e2debe91 | 14637 | intel_hdmi_init(dev, GEN4_HDMIB, PORT_B); |
b01f2c3a | 14638 | } |
27185ae1 | 14639 | |
3fec3d2f | 14640 | if (!found && IS_G4X(dev)) |
ab9d7c30 | 14641 | intel_dp_init(dev, DP_B, PORT_B); |
725e30ad | 14642 | } |
13520b05 KH |
14643 | |
14644 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 14645 | |
e2debe91 | 14646 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 14647 | DRM_DEBUG_KMS("probing SDVOC\n"); |
2a5c0832 | 14648 | found = intel_sdvo_init(dev, GEN3_SDVOC, PORT_C); |
b01f2c3a | 14649 | } |
27185ae1 | 14650 | |
e2debe91 | 14651 | if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) { |
27185ae1 | 14652 | |
3fec3d2f | 14653 | if (IS_G4X(dev)) { |
b01f2c3a | 14654 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); |
e2debe91 | 14655 | intel_hdmi_init(dev, GEN4_HDMIC, PORT_C); |
b01f2c3a | 14656 | } |
3fec3d2f | 14657 | if (IS_G4X(dev)) |
ab9d7c30 | 14658 | intel_dp_init(dev, DP_C, PORT_C); |
725e30ad | 14659 | } |
27185ae1 | 14660 | |
3fec3d2f | 14661 | if (IS_G4X(dev) && |
e7281eab | 14662 | (I915_READ(DP_D) & DP_DETECTED)) |
ab9d7c30 | 14663 | intel_dp_init(dev, DP_D, PORT_D); |
bad720ff | 14664 | } else if (IS_GEN2(dev)) |
79e53945 JB |
14665 | intel_dvo_init(dev); |
14666 | ||
103a196f | 14667 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
14668 | intel_tv_init(dev); |
14669 | ||
0bc12bcb | 14670 | intel_psr_init(dev); |
7c8f8a70 | 14671 | |
b2784e15 | 14672 | for_each_intel_encoder(dev, encoder) { |
4ef69c7a CW |
14673 | encoder->base.possible_crtcs = encoder->crtc_mask; |
14674 | encoder->base.possible_clones = | |
66a9278e | 14675 | intel_encoder_clones(encoder); |
79e53945 | 14676 | } |
47356eb6 | 14677 | |
dde86e2d | 14678 | intel_init_pch_refclk(dev); |
270b3042 DV |
14679 | |
14680 | drm_helper_move_panel_connectors_to_head(dev); | |
79e53945 JB |
14681 | } |
14682 | ||
14683 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
14684 | { | |
60a5ca01 | 14685 | struct drm_device *dev = fb->dev; |
79e53945 | 14686 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
79e53945 | 14687 | |
ef2d633e | 14688 | drm_framebuffer_cleanup(fb); |
60a5ca01 | 14689 | mutex_lock(&dev->struct_mutex); |
ef2d633e | 14690 | WARN_ON(!intel_fb->obj->framebuffer_references--); |
60a5ca01 VS |
14691 | drm_gem_object_unreference(&intel_fb->obj->base); |
14692 | mutex_unlock(&dev->struct_mutex); | |
79e53945 JB |
14693 | kfree(intel_fb); |
14694 | } | |
14695 | ||
14696 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 14697 | struct drm_file *file, |
79e53945 JB |
14698 | unsigned int *handle) |
14699 | { | |
14700 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 14701 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 14702 | |
cc917ab4 CW |
14703 | if (obj->userptr.mm) { |
14704 | DRM_DEBUG("attempting to use a userptr for a framebuffer, denied\n"); | |
14705 | return -EINVAL; | |
14706 | } | |
14707 | ||
05394f39 | 14708 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
14709 | } |
14710 | ||
86c98588 RV |
14711 | static int intel_user_framebuffer_dirty(struct drm_framebuffer *fb, |
14712 | struct drm_file *file, | |
14713 | unsigned flags, unsigned color, | |
14714 | struct drm_clip_rect *clips, | |
14715 | unsigned num_clips) | |
14716 | { | |
14717 | struct drm_device *dev = fb->dev; | |
14718 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
14719 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
14720 | ||
14721 | mutex_lock(&dev->struct_mutex); | |
74b4ea1e | 14722 | intel_fb_obj_flush(obj, false, ORIGIN_DIRTYFB); |
86c98588 RV |
14723 | mutex_unlock(&dev->struct_mutex); |
14724 | ||
14725 | return 0; | |
14726 | } | |
14727 | ||
79e53945 JB |
14728 | static const struct drm_framebuffer_funcs intel_fb_funcs = { |
14729 | .destroy = intel_user_framebuffer_destroy, | |
14730 | .create_handle = intel_user_framebuffer_create_handle, | |
86c98588 | 14731 | .dirty = intel_user_framebuffer_dirty, |
79e53945 JB |
14732 | }; |
14733 | ||
b321803d DL |
14734 | static |
14735 | u32 intel_fb_pitch_limit(struct drm_device *dev, uint64_t fb_modifier, | |
14736 | uint32_t pixel_format) | |
14737 | { | |
14738 | u32 gen = INTEL_INFO(dev)->gen; | |
14739 | ||
14740 | if (gen >= 9) { | |
14741 | /* "The stride in bytes must not exceed the of the size of 8K | |
14742 | * pixels and 32K bytes." | |
14743 | */ | |
14744 | return min(8192*drm_format_plane_cpp(pixel_format, 0), 32768); | |
666a4537 | 14745 | } else if (gen >= 5 && !IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev)) { |
b321803d DL |
14746 | return 32*1024; |
14747 | } else if (gen >= 4) { | |
14748 | if (fb_modifier == I915_FORMAT_MOD_X_TILED) | |
14749 | return 16*1024; | |
14750 | else | |
14751 | return 32*1024; | |
14752 | } else if (gen >= 3) { | |
14753 | if (fb_modifier == I915_FORMAT_MOD_X_TILED) | |
14754 | return 8*1024; | |
14755 | else | |
14756 | return 16*1024; | |
14757 | } else { | |
14758 | /* XXX DSPC is limited to 4k tiled */ | |
14759 | return 8*1024; | |
14760 | } | |
14761 | } | |
14762 | ||
b5ea642a DV |
14763 | static int intel_framebuffer_init(struct drm_device *dev, |
14764 | struct intel_framebuffer *intel_fb, | |
14765 | struct drm_mode_fb_cmd2 *mode_cmd, | |
14766 | struct drm_i915_gem_object *obj) | |
79e53945 | 14767 | { |
6761dd31 | 14768 | unsigned int aligned_height; |
79e53945 | 14769 | int ret; |
b321803d | 14770 | u32 pitch_limit, stride_alignment; |
79e53945 | 14771 | |
dd4916c5 DV |
14772 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
14773 | ||
2a80eada DV |
14774 | if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) { |
14775 | /* Enforce that fb modifier and tiling mode match, but only for | |
14776 | * X-tiled. This is needed for FBC. */ | |
14777 | if (!!(obj->tiling_mode == I915_TILING_X) != | |
14778 | !!(mode_cmd->modifier[0] == I915_FORMAT_MOD_X_TILED)) { | |
14779 | DRM_DEBUG("tiling_mode doesn't match fb modifier\n"); | |
14780 | return -EINVAL; | |
14781 | } | |
14782 | } else { | |
14783 | if (obj->tiling_mode == I915_TILING_X) | |
14784 | mode_cmd->modifier[0] = I915_FORMAT_MOD_X_TILED; | |
14785 | else if (obj->tiling_mode == I915_TILING_Y) { | |
14786 | DRM_DEBUG("No Y tiling for legacy addfb\n"); | |
14787 | return -EINVAL; | |
14788 | } | |
14789 | } | |
14790 | ||
9a8f0a12 TU |
14791 | /* Passed in modifier sanity checking. */ |
14792 | switch (mode_cmd->modifier[0]) { | |
14793 | case I915_FORMAT_MOD_Y_TILED: | |
14794 | case I915_FORMAT_MOD_Yf_TILED: | |
14795 | if (INTEL_INFO(dev)->gen < 9) { | |
14796 | DRM_DEBUG("Unsupported tiling 0x%llx!\n", | |
14797 | mode_cmd->modifier[0]); | |
14798 | return -EINVAL; | |
14799 | } | |
14800 | case DRM_FORMAT_MOD_NONE: | |
14801 | case I915_FORMAT_MOD_X_TILED: | |
14802 | break; | |
14803 | default: | |
c0f40428 JB |
14804 | DRM_DEBUG("Unsupported fb modifier 0x%llx!\n", |
14805 | mode_cmd->modifier[0]); | |
57cd6508 | 14806 | return -EINVAL; |
c16ed4be | 14807 | } |
57cd6508 | 14808 | |
b321803d DL |
14809 | stride_alignment = intel_fb_stride_alignment(dev, mode_cmd->modifier[0], |
14810 | mode_cmd->pixel_format); | |
14811 | if (mode_cmd->pitches[0] & (stride_alignment - 1)) { | |
14812 | DRM_DEBUG("pitch (%d) must be at least %u byte aligned\n", | |
14813 | mode_cmd->pitches[0], stride_alignment); | |
57cd6508 | 14814 | return -EINVAL; |
c16ed4be | 14815 | } |
57cd6508 | 14816 | |
b321803d DL |
14817 | pitch_limit = intel_fb_pitch_limit(dev, mode_cmd->modifier[0], |
14818 | mode_cmd->pixel_format); | |
a35cdaa0 | 14819 | if (mode_cmd->pitches[0] > pitch_limit) { |
b321803d DL |
14820 | DRM_DEBUG("%s pitch (%u) must be at less than %d\n", |
14821 | mode_cmd->modifier[0] != DRM_FORMAT_MOD_NONE ? | |
2a80eada | 14822 | "tiled" : "linear", |
a35cdaa0 | 14823 | mode_cmd->pitches[0], pitch_limit); |
5d7bd705 | 14824 | return -EINVAL; |
c16ed4be | 14825 | } |
5d7bd705 | 14826 | |
2a80eada | 14827 | if (mode_cmd->modifier[0] == I915_FORMAT_MOD_X_TILED && |
c16ed4be CW |
14828 | mode_cmd->pitches[0] != obj->stride) { |
14829 | DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n", | |
14830 | mode_cmd->pitches[0], obj->stride); | |
5d7bd705 | 14831 | return -EINVAL; |
c16ed4be | 14832 | } |
5d7bd705 | 14833 | |
57779d06 | 14834 | /* Reject formats not supported by any plane early. */ |
308e5bcb | 14835 | switch (mode_cmd->pixel_format) { |
57779d06 | 14836 | case DRM_FORMAT_C8: |
04b3924d VS |
14837 | case DRM_FORMAT_RGB565: |
14838 | case DRM_FORMAT_XRGB8888: | |
14839 | case DRM_FORMAT_ARGB8888: | |
57779d06 VS |
14840 | break; |
14841 | case DRM_FORMAT_XRGB1555: | |
c16ed4be | 14842 | if (INTEL_INFO(dev)->gen > 3) { |
4ee62c76 VS |
14843 | DRM_DEBUG("unsupported pixel format: %s\n", |
14844 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 14845 | return -EINVAL; |
c16ed4be | 14846 | } |
57779d06 | 14847 | break; |
57779d06 | 14848 | case DRM_FORMAT_ABGR8888: |
666a4537 WB |
14849 | if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev) && |
14850 | INTEL_INFO(dev)->gen < 9) { | |
6c0fd451 DL |
14851 | DRM_DEBUG("unsupported pixel format: %s\n", |
14852 | drm_get_format_name(mode_cmd->pixel_format)); | |
14853 | return -EINVAL; | |
14854 | } | |
14855 | break; | |
14856 | case DRM_FORMAT_XBGR8888: | |
04b3924d | 14857 | case DRM_FORMAT_XRGB2101010: |
57779d06 | 14858 | case DRM_FORMAT_XBGR2101010: |
c16ed4be | 14859 | if (INTEL_INFO(dev)->gen < 4) { |
4ee62c76 VS |
14860 | DRM_DEBUG("unsupported pixel format: %s\n", |
14861 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 14862 | return -EINVAL; |
c16ed4be | 14863 | } |
b5626747 | 14864 | break; |
7531208b | 14865 | case DRM_FORMAT_ABGR2101010: |
666a4537 | 14866 | if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev)) { |
7531208b DL |
14867 | DRM_DEBUG("unsupported pixel format: %s\n", |
14868 | drm_get_format_name(mode_cmd->pixel_format)); | |
14869 | return -EINVAL; | |
14870 | } | |
14871 | break; | |
04b3924d VS |
14872 | case DRM_FORMAT_YUYV: |
14873 | case DRM_FORMAT_UYVY: | |
14874 | case DRM_FORMAT_YVYU: | |
14875 | case DRM_FORMAT_VYUY: | |
c16ed4be | 14876 | if (INTEL_INFO(dev)->gen < 5) { |
4ee62c76 VS |
14877 | DRM_DEBUG("unsupported pixel format: %s\n", |
14878 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 14879 | return -EINVAL; |
c16ed4be | 14880 | } |
57cd6508 CW |
14881 | break; |
14882 | default: | |
4ee62c76 VS |
14883 | DRM_DEBUG("unsupported pixel format: %s\n", |
14884 | drm_get_format_name(mode_cmd->pixel_format)); | |
57cd6508 CW |
14885 | return -EINVAL; |
14886 | } | |
14887 | ||
90f9a336 VS |
14888 | /* FIXME need to adjust LINOFF/TILEOFF accordingly. */ |
14889 | if (mode_cmd->offsets[0] != 0) | |
14890 | return -EINVAL; | |
14891 | ||
ec2c981e | 14892 | aligned_height = intel_fb_align_height(dev, mode_cmd->height, |
091df6cb DV |
14893 | mode_cmd->pixel_format, |
14894 | mode_cmd->modifier[0]); | |
53155c0a DV |
14895 | /* FIXME drm helper for size checks (especially planar formats)? */ |
14896 | if (obj->base.size < aligned_height * mode_cmd->pitches[0]) | |
14897 | return -EINVAL; | |
14898 | ||
c7d73f6a DV |
14899 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); |
14900 | intel_fb->obj = obj; | |
80075d49 | 14901 | intel_fb->obj->framebuffer_references++; |
c7d73f6a | 14902 | |
79e53945 JB |
14903 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
14904 | if (ret) { | |
14905 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
14906 | return ret; | |
14907 | } | |
14908 | ||
79e53945 JB |
14909 | return 0; |
14910 | } | |
14911 | ||
79e53945 JB |
14912 | static struct drm_framebuffer * |
14913 | intel_user_framebuffer_create(struct drm_device *dev, | |
14914 | struct drm_file *filp, | |
1eb83451 | 14915 | const struct drm_mode_fb_cmd2 *user_mode_cmd) |
79e53945 | 14916 | { |
dcb1394e | 14917 | struct drm_framebuffer *fb; |
05394f39 | 14918 | struct drm_i915_gem_object *obj; |
76dc3769 | 14919 | struct drm_mode_fb_cmd2 mode_cmd = *user_mode_cmd; |
79e53945 | 14920 | |
308e5bcb | 14921 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
76dc3769 | 14922 | mode_cmd.handles[0])); |
c8725226 | 14923 | if (&obj->base == NULL) |
cce13ff7 | 14924 | return ERR_PTR(-ENOENT); |
79e53945 | 14925 | |
92907cbb | 14926 | fb = intel_framebuffer_create(dev, &mode_cmd, obj); |
dcb1394e LW |
14927 | if (IS_ERR(fb)) |
14928 | drm_gem_object_unreference_unlocked(&obj->base); | |
14929 | ||
14930 | return fb; | |
79e53945 JB |
14931 | } |
14932 | ||
0695726e | 14933 | #ifndef CONFIG_DRM_FBDEV_EMULATION |
0632fef6 | 14934 | static inline void intel_fbdev_output_poll_changed(struct drm_device *dev) |
4520f53a DV |
14935 | { |
14936 | } | |
14937 | #endif | |
14938 | ||
79e53945 | 14939 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 14940 | .fb_create = intel_user_framebuffer_create, |
0632fef6 | 14941 | .output_poll_changed = intel_fbdev_output_poll_changed, |
5ee67f1c MR |
14942 | .atomic_check = intel_atomic_check, |
14943 | .atomic_commit = intel_atomic_commit, | |
de419ab6 ML |
14944 | .atomic_state_alloc = intel_atomic_state_alloc, |
14945 | .atomic_state_clear = intel_atomic_state_clear, | |
79e53945 JB |
14946 | }; |
14947 | ||
e70236a8 JB |
14948 | /* Set up chip specific display functions */ |
14949 | static void intel_init_display(struct drm_device *dev) | |
14950 | { | |
14951 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14952 | ||
ee9300bb DV |
14953 | if (HAS_PCH_SPLIT(dev) || IS_G4X(dev)) |
14954 | dev_priv->display.find_dpll = g4x_find_best_dpll; | |
ef9348c8 CML |
14955 | else if (IS_CHERRYVIEW(dev)) |
14956 | dev_priv->display.find_dpll = chv_find_best_dpll; | |
ee9300bb DV |
14957 | else if (IS_VALLEYVIEW(dev)) |
14958 | dev_priv->display.find_dpll = vlv_find_best_dpll; | |
14959 | else if (IS_PINEVIEW(dev)) | |
14960 | dev_priv->display.find_dpll = pnv_find_best_dpll; | |
14961 | else | |
14962 | dev_priv->display.find_dpll = i9xx_find_best_dpll; | |
14963 | ||
bc8d7dff DL |
14964 | if (INTEL_INFO(dev)->gen >= 9) { |
14965 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; | |
5724dbd1 DL |
14966 | dev_priv->display.get_initial_plane_config = |
14967 | skylake_get_initial_plane_config; | |
bc8d7dff DL |
14968 | dev_priv->display.crtc_compute_clock = |
14969 | haswell_crtc_compute_clock; | |
14970 | dev_priv->display.crtc_enable = haswell_crtc_enable; | |
14971 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
bc8d7dff | 14972 | } else if (HAS_DDI(dev)) { |
0e8ffe1b | 14973 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; |
5724dbd1 DL |
14974 | dev_priv->display.get_initial_plane_config = |
14975 | ironlake_get_initial_plane_config; | |
797d0259 ACO |
14976 | dev_priv->display.crtc_compute_clock = |
14977 | haswell_crtc_compute_clock; | |
4f771f10 PZ |
14978 | dev_priv->display.crtc_enable = haswell_crtc_enable; |
14979 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
09b4ddf9 | 14980 | } else if (HAS_PCH_SPLIT(dev)) { |
0e8ffe1b | 14981 | dev_priv->display.get_pipe_config = ironlake_get_pipe_config; |
5724dbd1 DL |
14982 | dev_priv->display.get_initial_plane_config = |
14983 | ironlake_get_initial_plane_config; | |
3fb37703 ACO |
14984 | dev_priv->display.crtc_compute_clock = |
14985 | ironlake_crtc_compute_clock; | |
76e5a89c DV |
14986 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
14987 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
666a4537 | 14988 | } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
89b667f8 | 14989 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; |
5724dbd1 DL |
14990 | dev_priv->display.get_initial_plane_config = |
14991 | i9xx_get_initial_plane_config; | |
d6dfee7a | 14992 | dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock; |
89b667f8 JB |
14993 | dev_priv->display.crtc_enable = valleyview_crtc_enable; |
14994 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
f564048e | 14995 | } else { |
0e8ffe1b | 14996 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; |
5724dbd1 DL |
14997 | dev_priv->display.get_initial_plane_config = |
14998 | i9xx_get_initial_plane_config; | |
d6dfee7a | 14999 | dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock; |
76e5a89c DV |
15000 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
15001 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
f564048e | 15002 | } |
e70236a8 | 15003 | |
e70236a8 | 15004 | /* Returns the core display clock speed */ |
ef11bdb3 | 15005 | if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) |
1652d19e VS |
15006 | dev_priv->display.get_display_clock_speed = |
15007 | skylake_get_display_clock_speed; | |
acd3f3d3 BP |
15008 | else if (IS_BROXTON(dev)) |
15009 | dev_priv->display.get_display_clock_speed = | |
15010 | broxton_get_display_clock_speed; | |
1652d19e VS |
15011 | else if (IS_BROADWELL(dev)) |
15012 | dev_priv->display.get_display_clock_speed = | |
15013 | broadwell_get_display_clock_speed; | |
15014 | else if (IS_HASWELL(dev)) | |
15015 | dev_priv->display.get_display_clock_speed = | |
15016 | haswell_get_display_clock_speed; | |
666a4537 | 15017 | else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) |
25eb05fc JB |
15018 | dev_priv->display.get_display_clock_speed = |
15019 | valleyview_get_display_clock_speed; | |
b37a6434 VS |
15020 | else if (IS_GEN5(dev)) |
15021 | dev_priv->display.get_display_clock_speed = | |
15022 | ilk_get_display_clock_speed; | |
a7c66cd8 | 15023 | else if (IS_I945G(dev) || IS_BROADWATER(dev) || |
34edce2f | 15024 | IS_GEN6(dev) || IS_IVYBRIDGE(dev)) |
e70236a8 JB |
15025 | dev_priv->display.get_display_clock_speed = |
15026 | i945_get_display_clock_speed; | |
34edce2f VS |
15027 | else if (IS_GM45(dev)) |
15028 | dev_priv->display.get_display_clock_speed = | |
15029 | gm45_get_display_clock_speed; | |
15030 | else if (IS_CRESTLINE(dev)) | |
15031 | dev_priv->display.get_display_clock_speed = | |
15032 | i965gm_get_display_clock_speed; | |
15033 | else if (IS_PINEVIEW(dev)) | |
15034 | dev_priv->display.get_display_clock_speed = | |
15035 | pnv_get_display_clock_speed; | |
15036 | else if (IS_G33(dev) || IS_G4X(dev)) | |
15037 | dev_priv->display.get_display_clock_speed = | |
15038 | g33_get_display_clock_speed; | |
e70236a8 JB |
15039 | else if (IS_I915G(dev)) |
15040 | dev_priv->display.get_display_clock_speed = | |
15041 | i915_get_display_clock_speed; | |
257a7ffc | 15042 | else if (IS_I945GM(dev) || IS_845G(dev)) |
e70236a8 JB |
15043 | dev_priv->display.get_display_clock_speed = |
15044 | i9xx_misc_get_display_clock_speed; | |
15045 | else if (IS_I915GM(dev)) | |
15046 | dev_priv->display.get_display_clock_speed = | |
15047 | i915gm_get_display_clock_speed; | |
15048 | else if (IS_I865G(dev)) | |
15049 | dev_priv->display.get_display_clock_speed = | |
15050 | i865_get_display_clock_speed; | |
f0f8a9ce | 15051 | else if (IS_I85X(dev)) |
e70236a8 | 15052 | dev_priv->display.get_display_clock_speed = |
1b1d2716 | 15053 | i85x_get_display_clock_speed; |
623e01e5 VS |
15054 | else { /* 830 */ |
15055 | WARN(!IS_I830(dev), "Unknown platform. Assuming 133 MHz CDCLK\n"); | |
e70236a8 JB |
15056 | dev_priv->display.get_display_clock_speed = |
15057 | i830_get_display_clock_speed; | |
623e01e5 | 15058 | } |
e70236a8 | 15059 | |
7c10a2b5 | 15060 | if (IS_GEN5(dev)) { |
3bb11b53 | 15061 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
3bb11b53 SJ |
15062 | } else if (IS_GEN6(dev)) { |
15063 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; | |
3bb11b53 SJ |
15064 | } else if (IS_IVYBRIDGE(dev)) { |
15065 | /* FIXME: detect B0+ stepping and use auto training */ | |
15066 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
059b2fe9 | 15067 | } else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
3bb11b53 | 15068 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; |
27c329ed ML |
15069 | if (IS_BROADWELL(dev)) { |
15070 | dev_priv->display.modeset_commit_cdclk = | |
15071 | broadwell_modeset_commit_cdclk; | |
15072 | dev_priv->display.modeset_calc_cdclk = | |
15073 | broadwell_modeset_calc_cdclk; | |
15074 | } | |
666a4537 | 15075 | } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
27c329ed ML |
15076 | dev_priv->display.modeset_commit_cdclk = |
15077 | valleyview_modeset_commit_cdclk; | |
15078 | dev_priv->display.modeset_calc_cdclk = | |
15079 | valleyview_modeset_calc_cdclk; | |
f8437dd1 | 15080 | } else if (IS_BROXTON(dev)) { |
27c329ed ML |
15081 | dev_priv->display.modeset_commit_cdclk = |
15082 | broxton_modeset_commit_cdclk; | |
15083 | dev_priv->display.modeset_calc_cdclk = | |
15084 | broxton_modeset_calc_cdclk; | |
e70236a8 | 15085 | } |
8c9f3aaf | 15086 | |
8c9f3aaf JB |
15087 | switch (INTEL_INFO(dev)->gen) { |
15088 | case 2: | |
15089 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
15090 | break; | |
15091 | ||
15092 | case 3: | |
15093 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
15094 | break; | |
15095 | ||
15096 | case 4: | |
15097 | case 5: | |
15098 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
15099 | break; | |
15100 | ||
15101 | case 6: | |
15102 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
15103 | break; | |
7c9017e5 | 15104 | case 7: |
4e0bbc31 | 15105 | case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */ |
7c9017e5 JB |
15106 | dev_priv->display.queue_flip = intel_gen7_queue_flip; |
15107 | break; | |
830c81db | 15108 | case 9: |
ba343e02 TU |
15109 | /* Drop through - unsupported since execlist only. */ |
15110 | default: | |
15111 | /* Default just returns -ENODEV to indicate unsupported */ | |
15112 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
8c9f3aaf | 15113 | } |
7bd688cd | 15114 | |
e39b999a | 15115 | mutex_init(&dev_priv->pps_mutex); |
e70236a8 JB |
15116 | } |
15117 | ||
b690e96c JB |
15118 | /* |
15119 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
15120 | * resume, or other times. This quirk makes sure that's the case for | |
15121 | * affected systems. | |
15122 | */ | |
0206e353 | 15123 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
15124 | { |
15125 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15126 | ||
15127 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 15128 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
15129 | } |
15130 | ||
b6b5d049 VS |
15131 | static void quirk_pipeb_force(struct drm_device *dev) |
15132 | { | |
15133 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15134 | ||
15135 | dev_priv->quirks |= QUIRK_PIPEB_FORCE; | |
15136 | DRM_INFO("applying pipe b force quirk\n"); | |
15137 | } | |
15138 | ||
435793df KP |
15139 | /* |
15140 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
15141 | */ | |
15142 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
15143 | { | |
15144 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15145 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 15146 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
15147 | } |
15148 | ||
4dca20ef | 15149 | /* |
5a15ab5b CE |
15150 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
15151 | * brightness value | |
4dca20ef CE |
15152 | */ |
15153 | static void quirk_invert_brightness(struct drm_device *dev) | |
15154 | { | |
15155 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15156 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 15157 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
15158 | } |
15159 | ||
9c72cc6f SD |
15160 | /* Some VBT's incorrectly indicate no backlight is present */ |
15161 | static void quirk_backlight_present(struct drm_device *dev) | |
15162 | { | |
15163 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15164 | dev_priv->quirks |= QUIRK_BACKLIGHT_PRESENT; | |
15165 | DRM_INFO("applying backlight present quirk\n"); | |
15166 | } | |
15167 | ||
b690e96c JB |
15168 | struct intel_quirk { |
15169 | int device; | |
15170 | int subsystem_vendor; | |
15171 | int subsystem_device; | |
15172 | void (*hook)(struct drm_device *dev); | |
15173 | }; | |
15174 | ||
5f85f176 EE |
15175 | /* For systems that don't have a meaningful PCI subdevice/subvendor ID */ |
15176 | struct intel_dmi_quirk { | |
15177 | void (*hook)(struct drm_device *dev); | |
15178 | const struct dmi_system_id (*dmi_id_list)[]; | |
15179 | }; | |
15180 | ||
15181 | static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) | |
15182 | { | |
15183 | DRM_INFO("Backlight polarity reversed on %s\n", id->ident); | |
15184 | return 1; | |
15185 | } | |
15186 | ||
15187 | static const struct intel_dmi_quirk intel_dmi_quirks[] = { | |
15188 | { | |
15189 | .dmi_id_list = &(const struct dmi_system_id[]) { | |
15190 | { | |
15191 | .callback = intel_dmi_reverse_brightness, | |
15192 | .ident = "NCR Corporation", | |
15193 | .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), | |
15194 | DMI_MATCH(DMI_PRODUCT_NAME, ""), | |
15195 | }, | |
15196 | }, | |
15197 | { } /* terminating entry */ | |
15198 | }, | |
15199 | .hook = quirk_invert_brightness, | |
15200 | }, | |
15201 | }; | |
15202 | ||
c43b5634 | 15203 | static struct intel_quirk intel_quirks[] = { |
b690e96c JB |
15204 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
15205 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
15206 | ||
b690e96c JB |
15207 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
15208 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
15209 | ||
5f080c0f VS |
15210 | /* 830 needs to leave pipe A & dpll A up */ |
15211 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
15212 | ||
b6b5d049 VS |
15213 | /* 830 needs to leave pipe B & dpll B up */ |
15214 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipeb_force }, | |
15215 | ||
435793df KP |
15216 | /* Lenovo U160 cannot use SSC on LVDS */ |
15217 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
15218 | |
15219 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
15220 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b | 15221 | |
be505f64 AH |
15222 | /* Acer Aspire 5734Z must invert backlight brightness */ |
15223 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
15224 | ||
15225 | /* Acer/eMachines G725 */ | |
15226 | { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness }, | |
15227 | ||
15228 | /* Acer/eMachines e725 */ | |
15229 | { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness }, | |
15230 | ||
15231 | /* Acer/Packard Bell NCL20 */ | |
15232 | { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness }, | |
15233 | ||
15234 | /* Acer Aspire 4736Z */ | |
15235 | { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness }, | |
0f540c3a JN |
15236 | |
15237 | /* Acer Aspire 5336 */ | |
15238 | { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness }, | |
2e93a1aa SD |
15239 | |
15240 | /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */ | |
15241 | { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present }, | |
d4967d8c | 15242 | |
dfb3d47b SD |
15243 | /* Acer C720 Chromebook (Core i3 4005U) */ |
15244 | { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present }, | |
15245 | ||
b2a9601c | 15246 | /* Apple Macbook 2,1 (Core 2 T7400) */ |
15247 | { 0x27a2, 0x8086, 0x7270, quirk_backlight_present }, | |
15248 | ||
1b9448b0 JN |
15249 | /* Apple Macbook 4,1 */ |
15250 | { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present }, | |
15251 | ||
d4967d8c SD |
15252 | /* Toshiba CB35 Chromebook (Celeron 2955U) */ |
15253 | { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present }, | |
724cb06f SD |
15254 | |
15255 | /* HP Chromebook 14 (Celeron 2955U) */ | |
15256 | { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present }, | |
cf6f0af9 JN |
15257 | |
15258 | /* Dell Chromebook 11 */ | |
15259 | { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present }, | |
9be64eee JN |
15260 | |
15261 | /* Dell Chromebook 11 (2015 version) */ | |
15262 | { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present }, | |
b690e96c JB |
15263 | }; |
15264 | ||
15265 | static void intel_init_quirks(struct drm_device *dev) | |
15266 | { | |
15267 | struct pci_dev *d = dev->pdev; | |
15268 | int i; | |
15269 | ||
15270 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
15271 | struct intel_quirk *q = &intel_quirks[i]; | |
15272 | ||
15273 | if (d->device == q->device && | |
15274 | (d->subsystem_vendor == q->subsystem_vendor || | |
15275 | q->subsystem_vendor == PCI_ANY_ID) && | |
15276 | (d->subsystem_device == q->subsystem_device || | |
15277 | q->subsystem_device == PCI_ANY_ID)) | |
15278 | q->hook(dev); | |
15279 | } | |
5f85f176 EE |
15280 | for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { |
15281 | if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) | |
15282 | intel_dmi_quirks[i].hook(dev); | |
15283 | } | |
b690e96c JB |
15284 | } |
15285 | ||
9cce37f4 JB |
15286 | /* Disable the VGA plane that we never use */ |
15287 | static void i915_disable_vga(struct drm_device *dev) | |
15288 | { | |
15289 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15290 | u8 sr1; | |
f0f59a00 | 15291 | i915_reg_t vga_reg = i915_vgacntrl_reg(dev); |
9cce37f4 | 15292 | |
2b37c616 | 15293 | /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */ |
9cce37f4 | 15294 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); |
3fdcf431 | 15295 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
15296 | sr1 = inb(VGA_SR_DATA); |
15297 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
15298 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
15299 | udelay(300); | |
15300 | ||
01f5a626 | 15301 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); |
9cce37f4 JB |
15302 | POSTING_READ(vga_reg); |
15303 | } | |
15304 | ||
f817586c DV |
15305 | void intel_modeset_init_hw(struct drm_device *dev) |
15306 | { | |
1a617b77 ML |
15307 | struct drm_i915_private *dev_priv = dev->dev_private; |
15308 | ||
b6283055 | 15309 | intel_update_cdclk(dev); |
1a617b77 ML |
15310 | |
15311 | dev_priv->atomic_cdclk_freq = dev_priv->cdclk_freq; | |
15312 | ||
f817586c | 15313 | intel_init_clock_gating(dev); |
8090c6b9 | 15314 | intel_enable_gt_powersave(dev); |
f817586c DV |
15315 | } |
15316 | ||
d93c0372 MR |
15317 | /* |
15318 | * Calculate what we think the watermarks should be for the state we've read | |
15319 | * out of the hardware and then immediately program those watermarks so that | |
15320 | * we ensure the hardware settings match our internal state. | |
15321 | * | |
15322 | * We can calculate what we think WM's should be by creating a duplicate of the | |
15323 | * current state (which was constructed during hardware readout) and running it | |
15324 | * through the atomic check code to calculate new watermark values in the | |
15325 | * state object. | |
15326 | */ | |
15327 | static void sanitize_watermarks(struct drm_device *dev) | |
15328 | { | |
15329 | struct drm_i915_private *dev_priv = to_i915(dev); | |
15330 | struct drm_atomic_state *state; | |
15331 | struct drm_crtc *crtc; | |
15332 | struct drm_crtc_state *cstate; | |
15333 | struct drm_modeset_acquire_ctx ctx; | |
15334 | int ret; | |
15335 | int i; | |
15336 | ||
15337 | /* Only supported on platforms that use atomic watermark design */ | |
396e33ae | 15338 | if (!dev_priv->display.optimize_watermarks) |
d93c0372 MR |
15339 | return; |
15340 | ||
15341 | /* | |
15342 | * We need to hold connection_mutex before calling duplicate_state so | |
15343 | * that the connector loop is protected. | |
15344 | */ | |
15345 | drm_modeset_acquire_init(&ctx, 0); | |
15346 | retry: | |
15347 | ret = drm_modeset_lock(&dev->mode_config.connection_mutex, &ctx); | |
15348 | if (ret == -EDEADLK) { | |
15349 | drm_modeset_backoff(&ctx); | |
15350 | goto retry; | |
15351 | } else if (WARN_ON(ret)) { | |
15352 | return; | |
15353 | } | |
15354 | ||
15355 | state = drm_atomic_helper_duplicate_state(dev, &ctx); | |
15356 | if (WARN_ON(IS_ERR(state))) | |
15357 | return; | |
15358 | ||
396e33ae MR |
15359 | /* |
15360 | * Hardware readout is the only time we don't want to calculate | |
15361 | * intermediate watermarks (since we don't trust the current | |
15362 | * watermarks). | |
15363 | */ | |
15364 | to_intel_atomic_state(state)->skip_intermediate_wm = true; | |
15365 | ||
d93c0372 MR |
15366 | ret = intel_atomic_check(dev, state); |
15367 | if (ret) { | |
15368 | /* | |
15369 | * If we fail here, it means that the hardware appears to be | |
15370 | * programmed in a way that shouldn't be possible, given our | |
15371 | * understanding of watermark requirements. This might mean a | |
15372 | * mistake in the hardware readout code or a mistake in the | |
15373 | * watermark calculations for a given platform. Raise a WARN | |
15374 | * so that this is noticeable. | |
15375 | * | |
15376 | * If this actually happens, we'll have to just leave the | |
15377 | * BIOS-programmed watermarks untouched and hope for the best. | |
15378 | */ | |
15379 | WARN(true, "Could not determine valid watermarks for inherited state\n"); | |
15380 | return; | |
15381 | } | |
15382 | ||
15383 | /* Write calculated watermark values back */ | |
15384 | to_i915(dev)->wm.config = to_intel_atomic_state(state)->wm_config; | |
15385 | for_each_crtc_in_state(state, crtc, cstate, i) { | |
15386 | struct intel_crtc_state *cs = to_intel_crtc_state(cstate); | |
15387 | ||
396e33ae MR |
15388 | cs->wm.need_postvbl_update = true; |
15389 | dev_priv->display.optimize_watermarks(cs); | |
d93c0372 MR |
15390 | } |
15391 | ||
15392 | drm_atomic_state_free(state); | |
15393 | drm_modeset_drop_locks(&ctx); | |
15394 | drm_modeset_acquire_fini(&ctx); | |
15395 | } | |
15396 | ||
79e53945 JB |
15397 | void intel_modeset_init(struct drm_device *dev) |
15398 | { | |
652c393a | 15399 | struct drm_i915_private *dev_priv = dev->dev_private; |
1fe47785 | 15400 | int sprite, ret; |
8cc87b75 | 15401 | enum pipe pipe; |
46f297fb | 15402 | struct intel_crtc *crtc; |
79e53945 JB |
15403 | |
15404 | drm_mode_config_init(dev); | |
15405 | ||
15406 | dev->mode_config.min_width = 0; | |
15407 | dev->mode_config.min_height = 0; | |
15408 | ||
019d96cb DA |
15409 | dev->mode_config.preferred_depth = 24; |
15410 | dev->mode_config.prefer_shadow = 1; | |
15411 | ||
25bab385 TU |
15412 | dev->mode_config.allow_fb_modifiers = true; |
15413 | ||
e6ecefaa | 15414 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 15415 | |
b690e96c JB |
15416 | intel_init_quirks(dev); |
15417 | ||
1fa61106 ED |
15418 | intel_init_pm(dev); |
15419 | ||
e3c74757 BW |
15420 | if (INTEL_INFO(dev)->num_pipes == 0) |
15421 | return; | |
15422 | ||
69f92f67 LW |
15423 | /* |
15424 | * There may be no VBT; and if the BIOS enabled SSC we can | |
15425 | * just keep using it to avoid unnecessary flicker. Whereas if the | |
15426 | * BIOS isn't using it, don't assume it will work even if the VBT | |
15427 | * indicates as much. | |
15428 | */ | |
15429 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { | |
15430 | bool bios_lvds_use_ssc = !!(I915_READ(PCH_DREF_CONTROL) & | |
15431 | DREF_SSC1_ENABLE); | |
15432 | ||
15433 | if (dev_priv->vbt.lvds_use_ssc != bios_lvds_use_ssc) { | |
15434 | DRM_DEBUG_KMS("SSC %sabled by BIOS, overriding VBT which says %sabled\n", | |
15435 | bios_lvds_use_ssc ? "en" : "dis", | |
15436 | dev_priv->vbt.lvds_use_ssc ? "en" : "dis"); | |
15437 | dev_priv->vbt.lvds_use_ssc = bios_lvds_use_ssc; | |
15438 | } | |
15439 | } | |
15440 | ||
e70236a8 | 15441 | intel_init_display(dev); |
7c10a2b5 | 15442 | intel_init_audio(dev); |
e70236a8 | 15443 | |
a6c45cf0 CW |
15444 | if (IS_GEN2(dev)) { |
15445 | dev->mode_config.max_width = 2048; | |
15446 | dev->mode_config.max_height = 2048; | |
15447 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
15448 | dev->mode_config.max_width = 4096; |
15449 | dev->mode_config.max_height = 4096; | |
79e53945 | 15450 | } else { |
a6c45cf0 CW |
15451 | dev->mode_config.max_width = 8192; |
15452 | dev->mode_config.max_height = 8192; | |
79e53945 | 15453 | } |
068be561 | 15454 | |
dc41c154 VS |
15455 | if (IS_845G(dev) || IS_I865G(dev)) { |
15456 | dev->mode_config.cursor_width = IS_845G(dev) ? 64 : 512; | |
15457 | dev->mode_config.cursor_height = 1023; | |
15458 | } else if (IS_GEN2(dev)) { | |
068be561 DL |
15459 | dev->mode_config.cursor_width = GEN2_CURSOR_WIDTH; |
15460 | dev->mode_config.cursor_height = GEN2_CURSOR_HEIGHT; | |
15461 | } else { | |
15462 | dev->mode_config.cursor_width = MAX_CURSOR_WIDTH; | |
15463 | dev->mode_config.cursor_height = MAX_CURSOR_HEIGHT; | |
15464 | } | |
15465 | ||
5d4545ae | 15466 | dev->mode_config.fb_base = dev_priv->gtt.mappable_base; |
79e53945 | 15467 | |
28c97730 | 15468 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
7eb552ae BW |
15469 | INTEL_INFO(dev)->num_pipes, |
15470 | INTEL_INFO(dev)->num_pipes > 1 ? "s" : ""); | |
79e53945 | 15471 | |
055e393f | 15472 | for_each_pipe(dev_priv, pipe) { |
8cc87b75 | 15473 | intel_crtc_init(dev, pipe); |
3bdcfc0c | 15474 | for_each_sprite(dev_priv, pipe, sprite) { |
1fe47785 | 15475 | ret = intel_plane_init(dev, pipe, sprite); |
7f1f3851 | 15476 | if (ret) |
06da8da2 | 15477 | DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n", |
1fe47785 | 15478 | pipe_name(pipe), sprite_name(pipe, sprite), ret); |
7f1f3851 | 15479 | } |
79e53945 JB |
15480 | } |
15481 | ||
bfa7df01 VS |
15482 | intel_update_czclk(dev_priv); |
15483 | intel_update_cdclk(dev); | |
15484 | ||
e72f9fbf | 15485 | intel_shared_dpll_init(dev); |
ee7b9f93 | 15486 | |
9cce37f4 JB |
15487 | /* Just disable it once at startup */ |
15488 | i915_disable_vga(dev); | |
79e53945 | 15489 | intel_setup_outputs(dev); |
11be49eb | 15490 | |
6e9f798d | 15491 | drm_modeset_lock_all(dev); |
043e9bda | 15492 | intel_modeset_setup_hw_state(dev); |
6e9f798d | 15493 | drm_modeset_unlock_all(dev); |
46f297fb | 15494 | |
d3fcc808 | 15495 | for_each_intel_crtc(dev, crtc) { |
eeebeac5 ML |
15496 | struct intel_initial_plane_config plane_config = {}; |
15497 | ||
46f297fb JB |
15498 | if (!crtc->active) |
15499 | continue; | |
15500 | ||
46f297fb | 15501 | /* |
46f297fb JB |
15502 | * Note that reserving the BIOS fb up front prevents us |
15503 | * from stuffing other stolen allocations like the ring | |
15504 | * on top. This prevents some ugliness at boot time, and | |
15505 | * can even allow for smooth boot transitions if the BIOS | |
15506 | * fb is large enough for the active pipe configuration. | |
15507 | */ | |
eeebeac5 ML |
15508 | dev_priv->display.get_initial_plane_config(crtc, |
15509 | &plane_config); | |
15510 | ||
15511 | /* | |
15512 | * If the fb is shared between multiple heads, we'll | |
15513 | * just get the first one. | |
15514 | */ | |
15515 | intel_find_initial_plane_obj(crtc, &plane_config); | |
46f297fb | 15516 | } |
d93c0372 MR |
15517 | |
15518 | /* | |
15519 | * Make sure hardware watermarks really match the state we read out. | |
15520 | * Note that we need to do this after reconstructing the BIOS fb's | |
15521 | * since the watermark calculation done here will use pstate->fb. | |
15522 | */ | |
15523 | sanitize_watermarks(dev); | |
2c7111db CW |
15524 | } |
15525 | ||
7fad798e DV |
15526 | static void intel_enable_pipe_a(struct drm_device *dev) |
15527 | { | |
15528 | struct intel_connector *connector; | |
15529 | struct drm_connector *crt = NULL; | |
15530 | struct intel_load_detect_pipe load_detect_temp; | |
208bf9fd | 15531 | struct drm_modeset_acquire_ctx *ctx = dev->mode_config.acquire_ctx; |
7fad798e DV |
15532 | |
15533 | /* We can't just switch on the pipe A, we need to set things up with a | |
15534 | * proper mode and output configuration. As a gross hack, enable pipe A | |
15535 | * by enabling the load detect pipe once. */ | |
3a3371ff | 15536 | for_each_intel_connector(dev, connector) { |
7fad798e DV |
15537 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { |
15538 | crt = &connector->base; | |
15539 | break; | |
15540 | } | |
15541 | } | |
15542 | ||
15543 | if (!crt) | |
15544 | return; | |
15545 | ||
208bf9fd | 15546 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp, ctx)) |
49172fee | 15547 | intel_release_load_detect_pipe(crt, &load_detect_temp, ctx); |
7fad798e DV |
15548 | } |
15549 | ||
fa555837 DV |
15550 | static bool |
15551 | intel_check_plane_mapping(struct intel_crtc *crtc) | |
15552 | { | |
7eb552ae BW |
15553 | struct drm_device *dev = crtc->base.dev; |
15554 | struct drm_i915_private *dev_priv = dev->dev_private; | |
649636ef | 15555 | u32 val; |
fa555837 | 15556 | |
7eb552ae | 15557 | if (INTEL_INFO(dev)->num_pipes == 1) |
fa555837 DV |
15558 | return true; |
15559 | ||
649636ef | 15560 | val = I915_READ(DSPCNTR(!crtc->plane)); |
fa555837 DV |
15561 | |
15562 | if ((val & DISPLAY_PLANE_ENABLE) && | |
15563 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
15564 | return false; | |
15565 | ||
15566 | return true; | |
15567 | } | |
15568 | ||
02e93c35 VS |
15569 | static bool intel_crtc_has_encoders(struct intel_crtc *crtc) |
15570 | { | |
15571 | struct drm_device *dev = crtc->base.dev; | |
15572 | struct intel_encoder *encoder; | |
15573 | ||
15574 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) | |
15575 | return true; | |
15576 | ||
15577 | return false; | |
15578 | } | |
15579 | ||
24929352 DV |
15580 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
15581 | { | |
15582 | struct drm_device *dev = crtc->base.dev; | |
15583 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f0f59a00 | 15584 | i915_reg_t reg = PIPECONF(crtc->config->cpu_transcoder); |
24929352 | 15585 | |
24929352 | 15586 | /* Clear any frame start delays used for debugging left by the BIOS */ |
24929352 DV |
15587 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); |
15588 | ||
d3eaf884 | 15589 | /* restore vblank interrupts to correct state */ |
9625604c | 15590 | drm_crtc_vblank_reset(&crtc->base); |
d297e103 | 15591 | if (crtc->active) { |
f9cd7b88 VS |
15592 | struct intel_plane *plane; |
15593 | ||
9625604c | 15594 | drm_crtc_vblank_on(&crtc->base); |
f9cd7b88 VS |
15595 | |
15596 | /* Disable everything but the primary plane */ | |
15597 | for_each_intel_plane_on_crtc(dev, crtc, plane) { | |
15598 | if (plane->base.type == DRM_PLANE_TYPE_PRIMARY) | |
15599 | continue; | |
15600 | ||
15601 | plane->disable_plane(&plane->base, &crtc->base); | |
15602 | } | |
9625604c | 15603 | } |
d3eaf884 | 15604 | |
24929352 | 15605 | /* We need to sanitize the plane -> pipe mapping first because this will |
fa555837 DV |
15606 | * disable the crtc (and hence change the state) if it is wrong. Note |
15607 | * that gen4+ has a fixed plane -> pipe mapping. */ | |
15608 | if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) { | |
24929352 DV |
15609 | bool plane; |
15610 | ||
24929352 DV |
15611 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", |
15612 | crtc->base.base.id); | |
15613 | ||
15614 | /* Pipe has the wrong plane attached and the plane is active. | |
15615 | * Temporarily change the plane mapping and disable everything | |
15616 | * ... */ | |
15617 | plane = crtc->plane; | |
b70709a6 | 15618 | to_intel_plane_state(crtc->base.primary->state)->visible = true; |
24929352 | 15619 | crtc->plane = !plane; |
b17d48e2 | 15620 | intel_crtc_disable_noatomic(&crtc->base); |
24929352 | 15621 | crtc->plane = plane; |
24929352 | 15622 | } |
24929352 | 15623 | |
7fad798e DV |
15624 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
15625 | crtc->pipe == PIPE_A && !crtc->active) { | |
15626 | /* BIOS forgot to enable pipe A, this mostly happens after | |
15627 | * resume. Force-enable the pipe to fix this, the update_dpms | |
15628 | * call below we restore the pipe to the right state, but leave | |
15629 | * the required bits on. */ | |
15630 | intel_enable_pipe_a(dev); | |
15631 | } | |
15632 | ||
24929352 DV |
15633 | /* Adjust the state of the output pipe according to whether we |
15634 | * have active connectors/encoders. */ | |
02e93c35 | 15635 | if (!intel_crtc_has_encoders(crtc)) |
b17d48e2 | 15636 | intel_crtc_disable_noatomic(&crtc->base); |
24929352 | 15637 | |
53d9f4e9 | 15638 | if (crtc->active != crtc->base.state->active) { |
02e93c35 | 15639 | struct intel_encoder *encoder; |
24929352 DV |
15640 | |
15641 | /* This can happen either due to bugs in the get_hw_state | |
b17d48e2 ML |
15642 | * functions or because of calls to intel_crtc_disable_noatomic, |
15643 | * or because the pipe is force-enabled due to the | |
24929352 DV |
15644 | * pipe A quirk. */ |
15645 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", | |
15646 | crtc->base.base.id, | |
83d65738 | 15647 | crtc->base.state->enable ? "enabled" : "disabled", |
24929352 DV |
15648 | crtc->active ? "enabled" : "disabled"); |
15649 | ||
4be40c98 | 15650 | WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, NULL) < 0); |
49d6fa21 | 15651 | crtc->base.state->active = crtc->active; |
24929352 DV |
15652 | crtc->base.enabled = crtc->active; |
15653 | ||
15654 | /* Because we only establish the connector -> encoder -> | |
15655 | * crtc links if something is active, this means the | |
15656 | * crtc is now deactivated. Break the links. connector | |
15657 | * -> encoder links are only establish when things are | |
15658 | * actually up, hence no need to break them. */ | |
15659 | WARN_ON(crtc->active); | |
15660 | ||
2d406bb0 | 15661 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
24929352 | 15662 | encoder->base.crtc = NULL; |
24929352 | 15663 | } |
c5ab3bc0 | 15664 | |
a3ed6aad | 15665 | if (crtc->active || HAS_GMCH_DISPLAY(dev)) { |
4cc31489 DV |
15666 | /* |
15667 | * We start out with underrun reporting disabled to avoid races. | |
15668 | * For correct bookkeeping mark this on active crtcs. | |
15669 | * | |
c5ab3bc0 DV |
15670 | * Also on gmch platforms we dont have any hardware bits to |
15671 | * disable the underrun reporting. Which means we need to start | |
15672 | * out with underrun reporting disabled also on inactive pipes, | |
15673 | * since otherwise we'll complain about the garbage we read when | |
15674 | * e.g. coming up after runtime pm. | |
15675 | * | |
4cc31489 DV |
15676 | * No protection against concurrent access is required - at |
15677 | * worst a fifo underrun happens which also sets this to false. | |
15678 | */ | |
15679 | crtc->cpu_fifo_underrun_disabled = true; | |
15680 | crtc->pch_fifo_underrun_disabled = true; | |
15681 | } | |
24929352 DV |
15682 | } |
15683 | ||
15684 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
15685 | { | |
15686 | struct intel_connector *connector; | |
15687 | struct drm_device *dev = encoder->base.dev; | |
873ffe69 | 15688 | bool active = false; |
24929352 DV |
15689 | |
15690 | /* We need to check both for a crtc link (meaning that the | |
15691 | * encoder is active and trying to read from a pipe) and the | |
15692 | * pipe itself being active. */ | |
15693 | bool has_active_crtc = encoder->base.crtc && | |
15694 | to_intel_crtc(encoder->base.crtc)->active; | |
15695 | ||
873ffe69 ML |
15696 | for_each_intel_connector(dev, connector) { |
15697 | if (connector->base.encoder != &encoder->base) | |
15698 | continue; | |
15699 | ||
15700 | active = true; | |
15701 | break; | |
15702 | } | |
15703 | ||
15704 | if (active && !has_active_crtc) { | |
24929352 DV |
15705 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", |
15706 | encoder->base.base.id, | |
8e329a03 | 15707 | encoder->base.name); |
24929352 DV |
15708 | |
15709 | /* Connector is active, but has no active pipe. This is | |
15710 | * fallout from our resume register restoring. Disable | |
15711 | * the encoder manually again. */ | |
15712 | if (encoder->base.crtc) { | |
15713 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
15714 | encoder->base.base.id, | |
8e329a03 | 15715 | encoder->base.name); |
24929352 | 15716 | encoder->disable(encoder); |
a62d1497 VS |
15717 | if (encoder->post_disable) |
15718 | encoder->post_disable(encoder); | |
24929352 | 15719 | } |
7f1950fb | 15720 | encoder->base.crtc = NULL; |
24929352 DV |
15721 | |
15722 | /* Inconsistent output/port/pipe state happens presumably due to | |
15723 | * a bug in one of the get_hw_state functions. Or someplace else | |
15724 | * in our code, like the register restore mess on resume. Clamp | |
15725 | * things to off as a safer default. */ | |
3a3371ff | 15726 | for_each_intel_connector(dev, connector) { |
24929352 DV |
15727 | if (connector->encoder != encoder) |
15728 | continue; | |
7f1950fb EE |
15729 | connector->base.dpms = DRM_MODE_DPMS_OFF; |
15730 | connector->base.encoder = NULL; | |
24929352 DV |
15731 | } |
15732 | } | |
15733 | /* Enabled encoders without active connectors will be fixed in | |
15734 | * the crtc fixup. */ | |
15735 | } | |
15736 | ||
04098753 | 15737 | void i915_redisable_vga_power_on(struct drm_device *dev) |
0fde901f KM |
15738 | { |
15739 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f0f59a00 | 15740 | i915_reg_t vga_reg = i915_vgacntrl_reg(dev); |
0fde901f | 15741 | |
04098753 ID |
15742 | if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) { |
15743 | DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n"); | |
15744 | i915_disable_vga(dev); | |
15745 | } | |
15746 | } | |
15747 | ||
15748 | void i915_redisable_vga(struct drm_device *dev) | |
15749 | { | |
15750 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15751 | ||
8dc8a27c PZ |
15752 | /* This function can be called both from intel_modeset_setup_hw_state or |
15753 | * at a very early point in our resume sequence, where the power well | |
15754 | * structures are not yet restored. Since this function is at a very | |
15755 | * paranoid "someone might have enabled VGA while we were not looking" | |
15756 | * level, just check if the power well is enabled instead of trying to | |
15757 | * follow the "don't touch the power well if we don't need it" policy | |
15758 | * the rest of the driver uses. */ | |
f458ebbc | 15759 | if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_VGA)) |
8dc8a27c PZ |
15760 | return; |
15761 | ||
04098753 | 15762 | i915_redisable_vga_power_on(dev); |
0fde901f KM |
15763 | } |
15764 | ||
f9cd7b88 | 15765 | static bool primary_get_hw_state(struct intel_plane *plane) |
98ec7739 | 15766 | { |
f9cd7b88 | 15767 | struct drm_i915_private *dev_priv = to_i915(plane->base.dev); |
98ec7739 | 15768 | |
f9cd7b88 | 15769 | return I915_READ(DSPCNTR(plane->plane)) & DISPLAY_PLANE_ENABLE; |
d032ffa0 ML |
15770 | } |
15771 | ||
f9cd7b88 VS |
15772 | /* FIXME read out full plane state for all planes */ |
15773 | static void readout_plane_state(struct intel_crtc *crtc) | |
d032ffa0 | 15774 | { |
b26d3ea3 | 15775 | struct drm_plane *primary = crtc->base.primary; |
f9cd7b88 | 15776 | struct intel_plane_state *plane_state = |
b26d3ea3 | 15777 | to_intel_plane_state(primary->state); |
d032ffa0 | 15778 | |
19b8d387 | 15779 | plane_state->visible = crtc->active && |
b26d3ea3 ML |
15780 | primary_get_hw_state(to_intel_plane(primary)); |
15781 | ||
15782 | if (plane_state->visible) | |
15783 | crtc->base.state->plane_mask |= 1 << drm_plane_index(primary); | |
98ec7739 VS |
15784 | } |
15785 | ||
30e984df | 15786 | static void intel_modeset_readout_hw_state(struct drm_device *dev) |
24929352 DV |
15787 | { |
15788 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15789 | enum pipe pipe; | |
24929352 DV |
15790 | struct intel_crtc *crtc; |
15791 | struct intel_encoder *encoder; | |
15792 | struct intel_connector *connector; | |
5358901f | 15793 | int i; |
24929352 | 15794 | |
565602d7 ML |
15795 | dev_priv->active_crtcs = 0; |
15796 | ||
d3fcc808 | 15797 | for_each_intel_crtc(dev, crtc) { |
565602d7 ML |
15798 | struct intel_crtc_state *crtc_state = crtc->config; |
15799 | int pixclk = 0; | |
3b117c8f | 15800 | |
565602d7 ML |
15801 | __drm_atomic_helper_crtc_destroy_state(&crtc->base, &crtc_state->base); |
15802 | memset(crtc_state, 0, sizeof(*crtc_state)); | |
15803 | crtc_state->base.crtc = &crtc->base; | |
24929352 | 15804 | |
565602d7 ML |
15805 | crtc_state->base.active = crtc_state->base.enable = |
15806 | dev_priv->display.get_pipe_config(crtc, crtc_state); | |
15807 | ||
15808 | crtc->base.enabled = crtc_state->base.enable; | |
15809 | crtc->active = crtc_state->base.active; | |
15810 | ||
15811 | if (crtc_state->base.active) { | |
15812 | dev_priv->active_crtcs |= 1 << crtc->pipe; | |
15813 | ||
15814 | if (IS_BROADWELL(dev_priv)) { | |
15815 | pixclk = ilk_pipe_pixel_rate(crtc_state); | |
15816 | ||
15817 | /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */ | |
15818 | if (crtc_state->ips_enabled) | |
15819 | pixclk = DIV_ROUND_UP(pixclk * 100, 95); | |
15820 | } else if (IS_VALLEYVIEW(dev_priv) || | |
15821 | IS_CHERRYVIEW(dev_priv) || | |
15822 | IS_BROXTON(dev_priv)) | |
15823 | pixclk = crtc_state->base.adjusted_mode.crtc_clock; | |
15824 | else | |
15825 | WARN_ON(dev_priv->display.modeset_calc_cdclk); | |
15826 | } | |
15827 | ||
15828 | dev_priv->min_pixclk[crtc->pipe] = pixclk; | |
b70709a6 | 15829 | |
f9cd7b88 | 15830 | readout_plane_state(crtc); |
24929352 DV |
15831 | |
15832 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
15833 | crtc->base.base.id, | |
15834 | crtc->active ? "enabled" : "disabled"); | |
15835 | } | |
15836 | ||
5358901f DV |
15837 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
15838 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
15839 | ||
3e369b76 ACO |
15840 | pll->on = pll->get_hw_state(dev_priv, pll, |
15841 | &pll->config.hw_state); | |
5358901f | 15842 | pll->active = 0; |
3e369b76 | 15843 | pll->config.crtc_mask = 0; |
d3fcc808 | 15844 | for_each_intel_crtc(dev, crtc) { |
1e6f2ddc | 15845 | if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll) { |
5358901f | 15846 | pll->active++; |
3e369b76 | 15847 | pll->config.crtc_mask |= 1 << crtc->pipe; |
1e6f2ddc | 15848 | } |
5358901f | 15849 | } |
5358901f | 15850 | |
1e6f2ddc | 15851 | DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n", |
3e369b76 | 15852 | pll->name, pll->config.crtc_mask, pll->on); |
bd2bb1b9 | 15853 | |
3e369b76 | 15854 | if (pll->config.crtc_mask) |
bd2bb1b9 | 15855 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); |
5358901f DV |
15856 | } |
15857 | ||
b2784e15 | 15858 | for_each_intel_encoder(dev, encoder) { |
24929352 DV |
15859 | pipe = 0; |
15860 | ||
15861 | if (encoder->get_hw_state(encoder, &pipe)) { | |
045ac3b5 JB |
15862 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
15863 | encoder->base.crtc = &crtc->base; | |
6e3c9717 | 15864 | encoder->get_config(encoder, crtc->config); |
24929352 DV |
15865 | } else { |
15866 | encoder->base.crtc = NULL; | |
15867 | } | |
15868 | ||
6f2bcceb | 15869 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n", |
24929352 | 15870 | encoder->base.base.id, |
8e329a03 | 15871 | encoder->base.name, |
24929352 | 15872 | encoder->base.crtc ? "enabled" : "disabled", |
6f2bcceb | 15873 | pipe_name(pipe)); |
24929352 DV |
15874 | } |
15875 | ||
3a3371ff | 15876 | for_each_intel_connector(dev, connector) { |
24929352 DV |
15877 | if (connector->get_hw_state(connector)) { |
15878 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
24929352 DV |
15879 | connector->base.encoder = &connector->encoder->base; |
15880 | } else { | |
15881 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
15882 | connector->base.encoder = NULL; | |
15883 | } | |
15884 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
15885 | connector->base.base.id, | |
c23cc417 | 15886 | connector->base.name, |
24929352 DV |
15887 | connector->base.encoder ? "enabled" : "disabled"); |
15888 | } | |
7f4c6284 VS |
15889 | |
15890 | for_each_intel_crtc(dev, crtc) { | |
15891 | crtc->base.hwmode = crtc->config->base.adjusted_mode; | |
15892 | ||
15893 | memset(&crtc->base.mode, 0, sizeof(crtc->base.mode)); | |
15894 | if (crtc->base.state->active) { | |
15895 | intel_mode_from_pipe_config(&crtc->base.mode, crtc->config); | |
15896 | intel_mode_from_pipe_config(&crtc->base.state->adjusted_mode, crtc->config); | |
15897 | WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, &crtc->base.mode)); | |
15898 | ||
15899 | /* | |
15900 | * The initial mode needs to be set in order to keep | |
15901 | * the atomic core happy. It wants a valid mode if the | |
15902 | * crtc's enabled, so we do the above call. | |
15903 | * | |
15904 | * At this point some state updated by the connectors | |
15905 | * in their ->detect() callback has not run yet, so | |
15906 | * no recalculation can be done yet. | |
15907 | * | |
15908 | * Even if we could do a recalculation and modeset | |
15909 | * right now it would cause a double modeset if | |
15910 | * fbdev or userspace chooses a different initial mode. | |
15911 | * | |
15912 | * If that happens, someone indicated they wanted a | |
15913 | * mode change, which means it's safe to do a full | |
15914 | * recalculation. | |
15915 | */ | |
15916 | crtc->base.state->mode.private_flags = I915_MODE_FLAG_INHERITED; | |
9eca6832 VS |
15917 | |
15918 | drm_calc_timestamping_constants(&crtc->base, &crtc->base.hwmode); | |
15919 | update_scanline_offset(crtc); | |
7f4c6284 VS |
15920 | } |
15921 | } | |
30e984df DV |
15922 | } |
15923 | ||
043e9bda ML |
15924 | /* Scan out the current hw modeset state, |
15925 | * and sanitizes it to the current state | |
15926 | */ | |
15927 | static void | |
15928 | intel_modeset_setup_hw_state(struct drm_device *dev) | |
30e984df DV |
15929 | { |
15930 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15931 | enum pipe pipe; | |
30e984df DV |
15932 | struct intel_crtc *crtc; |
15933 | struct intel_encoder *encoder; | |
35c95375 | 15934 | int i; |
30e984df DV |
15935 | |
15936 | intel_modeset_readout_hw_state(dev); | |
24929352 DV |
15937 | |
15938 | /* HW state is read out, now we need to sanitize this mess. */ | |
b2784e15 | 15939 | for_each_intel_encoder(dev, encoder) { |
24929352 DV |
15940 | intel_sanitize_encoder(encoder); |
15941 | } | |
15942 | ||
055e393f | 15943 | for_each_pipe(dev_priv, pipe) { |
24929352 DV |
15944 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
15945 | intel_sanitize_crtc(crtc); | |
6e3c9717 ACO |
15946 | intel_dump_pipe_config(crtc, crtc->config, |
15947 | "[setup_hw_state]"); | |
24929352 | 15948 | } |
9a935856 | 15949 | |
d29b2f9d ACO |
15950 | intel_modeset_update_connector_atomic_state(dev); |
15951 | ||
35c95375 DV |
15952 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
15953 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
15954 | ||
15955 | if (!pll->on || pll->active) | |
15956 | continue; | |
15957 | ||
15958 | DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name); | |
15959 | ||
15960 | pll->disable(dev_priv, pll); | |
15961 | pll->on = false; | |
15962 | } | |
15963 | ||
666a4537 | 15964 | if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) |
6eb1a681 VS |
15965 | vlv_wm_get_hw_state(dev); |
15966 | else if (IS_GEN9(dev)) | |
3078999f PB |
15967 | skl_wm_get_hw_state(dev); |
15968 | else if (HAS_PCH_SPLIT(dev)) | |
243e6a44 | 15969 | ilk_wm_get_hw_state(dev); |
292b990e ML |
15970 | |
15971 | for_each_intel_crtc(dev, crtc) { | |
15972 | unsigned long put_domains; | |
15973 | ||
15974 | put_domains = modeset_get_crtc_power_domains(&crtc->base); | |
15975 | if (WARN_ON(put_domains)) | |
15976 | modeset_put_power_domains(dev_priv, put_domains); | |
15977 | } | |
15978 | intel_display_set_init_power(dev_priv, false); | |
043e9bda | 15979 | } |
7d0bc1ea | 15980 | |
043e9bda ML |
15981 | void intel_display_resume(struct drm_device *dev) |
15982 | { | |
15983 | struct drm_atomic_state *state = drm_atomic_state_alloc(dev); | |
15984 | struct intel_connector *conn; | |
15985 | struct intel_plane *plane; | |
15986 | struct drm_crtc *crtc; | |
15987 | int ret; | |
f30da187 | 15988 | |
043e9bda ML |
15989 | if (!state) |
15990 | return; | |
15991 | ||
15992 | state->acquire_ctx = dev->mode_config.acquire_ctx; | |
15993 | ||
15994 | /* preserve complete old state, including dpll */ | |
15995 | intel_atomic_get_shared_dpll_state(state); | |
15996 | ||
15997 | for_each_crtc(dev, crtc) { | |
15998 | struct drm_crtc_state *crtc_state = | |
15999 | drm_atomic_get_crtc_state(state, crtc); | |
16000 | ||
16001 | ret = PTR_ERR_OR_ZERO(crtc_state); | |
16002 | if (ret) | |
16003 | goto err; | |
16004 | ||
16005 | /* force a restore */ | |
16006 | crtc_state->mode_changed = true; | |
45e2b5f6 | 16007 | } |
8af6cf88 | 16008 | |
043e9bda ML |
16009 | for_each_intel_plane(dev, plane) { |
16010 | ret = PTR_ERR_OR_ZERO(drm_atomic_get_plane_state(state, &plane->base)); | |
16011 | if (ret) | |
16012 | goto err; | |
16013 | } | |
16014 | ||
16015 | for_each_intel_connector(dev, conn) { | |
16016 | ret = PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(state, &conn->base)); | |
16017 | if (ret) | |
16018 | goto err; | |
16019 | } | |
16020 | ||
16021 | intel_modeset_setup_hw_state(dev); | |
16022 | ||
16023 | i915_redisable_vga(dev); | |
74c090b1 | 16024 | ret = drm_atomic_commit(state); |
043e9bda ML |
16025 | if (!ret) |
16026 | return; | |
16027 | ||
16028 | err: | |
16029 | DRM_ERROR("Restoring old state failed with %i\n", ret); | |
16030 | drm_atomic_state_free(state); | |
2c7111db CW |
16031 | } |
16032 | ||
16033 | void intel_modeset_gem_init(struct drm_device *dev) | |
16034 | { | |
484b41dd | 16035 | struct drm_crtc *c; |
2ff8fde1 | 16036 | struct drm_i915_gem_object *obj; |
e0d6149b | 16037 | int ret; |
484b41dd | 16038 | |
ae48434c ID |
16039 | mutex_lock(&dev->struct_mutex); |
16040 | intel_init_gt_powersave(dev); | |
16041 | mutex_unlock(&dev->struct_mutex); | |
16042 | ||
1833b134 | 16043 | intel_modeset_init_hw(dev); |
02e792fb DV |
16044 | |
16045 | intel_setup_overlay(dev); | |
484b41dd JB |
16046 | |
16047 | /* | |
16048 | * Make sure any fbs we allocated at startup are properly | |
16049 | * pinned & fenced. When we do the allocation it's too early | |
16050 | * for this. | |
16051 | */ | |
70e1e0ec | 16052 | for_each_crtc(dev, c) { |
2ff8fde1 MR |
16053 | obj = intel_fb_obj(c->primary->fb); |
16054 | if (obj == NULL) | |
484b41dd JB |
16055 | continue; |
16056 | ||
e0d6149b TU |
16057 | mutex_lock(&dev->struct_mutex); |
16058 | ret = intel_pin_and_fence_fb_obj(c->primary, | |
16059 | c->primary->fb, | |
7580d774 | 16060 | c->primary->state); |
e0d6149b TU |
16061 | mutex_unlock(&dev->struct_mutex); |
16062 | if (ret) { | |
484b41dd JB |
16063 | DRM_ERROR("failed to pin boot fb on pipe %d\n", |
16064 | to_intel_crtc(c)->pipe); | |
66e514c1 DA |
16065 | drm_framebuffer_unreference(c->primary->fb); |
16066 | c->primary->fb = NULL; | |
36750f28 | 16067 | c->primary->crtc = c->primary->state->crtc = NULL; |
afd65eb4 | 16068 | update_state_fb(c->primary); |
36750f28 | 16069 | c->state->plane_mask &= ~(1 << drm_plane_index(c->primary)); |
484b41dd JB |
16070 | } |
16071 | } | |
0962c3c9 VS |
16072 | |
16073 | intel_backlight_register(dev); | |
79e53945 JB |
16074 | } |
16075 | ||
4932e2c3 ID |
16076 | void intel_connector_unregister(struct intel_connector *intel_connector) |
16077 | { | |
16078 | struct drm_connector *connector = &intel_connector->base; | |
16079 | ||
16080 | intel_panel_destroy_backlight(connector); | |
34ea3d38 | 16081 | drm_connector_unregister(connector); |
4932e2c3 ID |
16082 | } |
16083 | ||
79e53945 JB |
16084 | void intel_modeset_cleanup(struct drm_device *dev) |
16085 | { | |
652c393a | 16086 | struct drm_i915_private *dev_priv = dev->dev_private; |
19c8054c | 16087 | struct intel_connector *connector; |
652c393a | 16088 | |
2eb5252e ID |
16089 | intel_disable_gt_powersave(dev); |
16090 | ||
0962c3c9 VS |
16091 | intel_backlight_unregister(dev); |
16092 | ||
fd0c0642 DV |
16093 | /* |
16094 | * Interrupts and polling as the first thing to avoid creating havoc. | |
2eb5252e | 16095 | * Too much stuff here (turning of connectors, ...) would |
fd0c0642 DV |
16096 | * experience fancy races otherwise. |
16097 | */ | |
2aeb7d3a | 16098 | intel_irq_uninstall(dev_priv); |
eb21b92b | 16099 | |
fd0c0642 DV |
16100 | /* |
16101 | * Due to the hpd irq storm handling the hotplug work can re-arm the | |
16102 | * poll handlers. Hence disable polling after hpd handling is shut down. | |
16103 | */ | |
f87ea761 | 16104 | drm_kms_helper_poll_fini(dev); |
fd0c0642 | 16105 | |
723bfd70 JB |
16106 | intel_unregister_dsm_handler(); |
16107 | ||
7733b49b | 16108 | intel_fbc_disable(dev_priv); |
69341a5e | 16109 | |
1630fe75 CW |
16110 | /* flush any delayed tasks or pending work */ |
16111 | flush_scheduled_work(); | |
16112 | ||
db31af1d | 16113 | /* destroy the backlight and sysfs files before encoders/connectors */ |
19c8054c JN |
16114 | for_each_intel_connector(dev, connector) |
16115 | connector->unregister(connector); | |
d9255d57 | 16116 | |
79e53945 | 16117 | drm_mode_config_cleanup(dev); |
4d7bb011 DV |
16118 | |
16119 | intel_cleanup_overlay(dev); | |
ae48434c ID |
16120 | |
16121 | mutex_lock(&dev->struct_mutex); | |
16122 | intel_cleanup_gt_powersave(dev); | |
16123 | mutex_unlock(&dev->struct_mutex); | |
79e53945 JB |
16124 | } |
16125 | ||
f1c79df3 ZW |
16126 | /* |
16127 | * Return which encoder is currently attached for connector. | |
16128 | */ | |
df0e9248 | 16129 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 16130 | { |
df0e9248 CW |
16131 | return &intel_attached_encoder(connector)->base; |
16132 | } | |
f1c79df3 | 16133 | |
df0e9248 CW |
16134 | void intel_connector_attach_encoder(struct intel_connector *connector, |
16135 | struct intel_encoder *encoder) | |
16136 | { | |
16137 | connector->encoder = encoder; | |
16138 | drm_mode_connector_attach_encoder(&connector->base, | |
16139 | &encoder->base); | |
79e53945 | 16140 | } |
28d52043 DA |
16141 | |
16142 | /* | |
16143 | * set vga decode state - true == enable VGA decode | |
16144 | */ | |
16145 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
16146 | { | |
16147 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a885b3cc | 16148 | unsigned reg = INTEL_INFO(dev)->gen >= 6 ? SNB_GMCH_CTRL : INTEL_GMCH_CTRL; |
28d52043 DA |
16149 | u16 gmch_ctrl; |
16150 | ||
75fa041d CW |
16151 | if (pci_read_config_word(dev_priv->bridge_dev, reg, &gmch_ctrl)) { |
16152 | DRM_ERROR("failed to read control word\n"); | |
16153 | return -EIO; | |
16154 | } | |
16155 | ||
c0cc8a55 CW |
16156 | if (!!(gmch_ctrl & INTEL_GMCH_VGA_DISABLE) == !state) |
16157 | return 0; | |
16158 | ||
28d52043 DA |
16159 | if (state) |
16160 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
16161 | else | |
16162 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
75fa041d CW |
16163 | |
16164 | if (pci_write_config_word(dev_priv->bridge_dev, reg, gmch_ctrl)) { | |
16165 | DRM_ERROR("failed to write control word\n"); | |
16166 | return -EIO; | |
16167 | } | |
16168 | ||
28d52043 DA |
16169 | return 0; |
16170 | } | |
c4a1d9e4 | 16171 | |
c4a1d9e4 | 16172 | struct intel_display_error_state { |
ff57f1b0 PZ |
16173 | |
16174 | u32 power_well_driver; | |
16175 | ||
63b66e5b CW |
16176 | int num_transcoders; |
16177 | ||
c4a1d9e4 CW |
16178 | struct intel_cursor_error_state { |
16179 | u32 control; | |
16180 | u32 position; | |
16181 | u32 base; | |
16182 | u32 size; | |
52331309 | 16183 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
16184 | |
16185 | struct intel_pipe_error_state { | |
ddf9c536 | 16186 | bool power_domain_on; |
c4a1d9e4 | 16187 | u32 source; |
f301b1e1 | 16188 | u32 stat; |
52331309 | 16189 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
16190 | |
16191 | struct intel_plane_error_state { | |
16192 | u32 control; | |
16193 | u32 stride; | |
16194 | u32 size; | |
16195 | u32 pos; | |
16196 | u32 addr; | |
16197 | u32 surface; | |
16198 | u32 tile_offset; | |
52331309 | 16199 | } plane[I915_MAX_PIPES]; |
63b66e5b CW |
16200 | |
16201 | struct intel_transcoder_error_state { | |
ddf9c536 | 16202 | bool power_domain_on; |
63b66e5b CW |
16203 | enum transcoder cpu_transcoder; |
16204 | ||
16205 | u32 conf; | |
16206 | ||
16207 | u32 htotal; | |
16208 | u32 hblank; | |
16209 | u32 hsync; | |
16210 | u32 vtotal; | |
16211 | u32 vblank; | |
16212 | u32 vsync; | |
16213 | } transcoder[4]; | |
c4a1d9e4 CW |
16214 | }; |
16215 | ||
16216 | struct intel_display_error_state * | |
16217 | intel_display_capture_error_state(struct drm_device *dev) | |
16218 | { | |
fbee40df | 16219 | struct drm_i915_private *dev_priv = dev->dev_private; |
c4a1d9e4 | 16220 | struct intel_display_error_state *error; |
63b66e5b CW |
16221 | int transcoders[] = { |
16222 | TRANSCODER_A, | |
16223 | TRANSCODER_B, | |
16224 | TRANSCODER_C, | |
16225 | TRANSCODER_EDP, | |
16226 | }; | |
c4a1d9e4 CW |
16227 | int i; |
16228 | ||
63b66e5b CW |
16229 | if (INTEL_INFO(dev)->num_pipes == 0) |
16230 | return NULL; | |
16231 | ||
9d1cb914 | 16232 | error = kzalloc(sizeof(*error), GFP_ATOMIC); |
c4a1d9e4 CW |
16233 | if (error == NULL) |
16234 | return NULL; | |
16235 | ||
190be112 | 16236 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
ff57f1b0 PZ |
16237 | error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER); |
16238 | ||
055e393f | 16239 | for_each_pipe(dev_priv, i) { |
ddf9c536 | 16240 | error->pipe[i].power_domain_on = |
f458ebbc DV |
16241 | __intel_display_power_is_enabled(dev_priv, |
16242 | POWER_DOMAIN_PIPE(i)); | |
ddf9c536 | 16243 | if (!error->pipe[i].power_domain_on) |
9d1cb914 PZ |
16244 | continue; |
16245 | ||
5efb3e28 VS |
16246 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
16247 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
16248 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
c4a1d9e4 CW |
16249 | |
16250 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
16251 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
80ca378b | 16252 | if (INTEL_INFO(dev)->gen <= 3) { |
51889b35 | 16253 | error->plane[i].size = I915_READ(DSPSIZE(i)); |
80ca378b PZ |
16254 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
16255 | } | |
ca291363 PZ |
16256 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
16257 | error->plane[i].addr = I915_READ(DSPADDR(i)); | |
c4a1d9e4 CW |
16258 | if (INTEL_INFO(dev)->gen >= 4) { |
16259 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
16260 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
16261 | } | |
16262 | ||
c4a1d9e4 | 16263 | error->pipe[i].source = I915_READ(PIPESRC(i)); |
f301b1e1 | 16264 | |
3abfce77 | 16265 | if (HAS_GMCH_DISPLAY(dev)) |
f301b1e1 | 16266 | error->pipe[i].stat = I915_READ(PIPESTAT(i)); |
63b66e5b CW |
16267 | } |
16268 | ||
16269 | error->num_transcoders = INTEL_INFO(dev)->num_pipes; | |
16270 | if (HAS_DDI(dev_priv->dev)) | |
16271 | error->num_transcoders++; /* Account for eDP. */ | |
16272 | ||
16273 | for (i = 0; i < error->num_transcoders; i++) { | |
16274 | enum transcoder cpu_transcoder = transcoders[i]; | |
16275 | ||
ddf9c536 | 16276 | error->transcoder[i].power_domain_on = |
f458ebbc | 16277 | __intel_display_power_is_enabled(dev_priv, |
38cc1daf | 16278 | POWER_DOMAIN_TRANSCODER(cpu_transcoder)); |
ddf9c536 | 16279 | if (!error->transcoder[i].power_domain_on) |
9d1cb914 PZ |
16280 | continue; |
16281 | ||
63b66e5b CW |
16282 | error->transcoder[i].cpu_transcoder = cpu_transcoder; |
16283 | ||
16284 | error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder)); | |
16285 | error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder)); | |
16286 | error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder)); | |
16287 | error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder)); | |
16288 | error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder)); | |
16289 | error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder)); | |
16290 | error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder)); | |
c4a1d9e4 CW |
16291 | } |
16292 | ||
16293 | return error; | |
16294 | } | |
16295 | ||
edc3d884 MK |
16296 | #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__) |
16297 | ||
c4a1d9e4 | 16298 | void |
edc3d884 | 16299 | intel_display_print_error_state(struct drm_i915_error_state_buf *m, |
c4a1d9e4 CW |
16300 | struct drm_device *dev, |
16301 | struct intel_display_error_state *error) | |
16302 | { | |
055e393f | 16303 | struct drm_i915_private *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
16304 | int i; |
16305 | ||
63b66e5b CW |
16306 | if (!error) |
16307 | return; | |
16308 | ||
edc3d884 | 16309 | err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes); |
190be112 | 16310 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
edc3d884 | 16311 | err_printf(m, "PWR_WELL_CTL2: %08x\n", |
ff57f1b0 | 16312 | error->power_well_driver); |
055e393f | 16313 | for_each_pipe(dev_priv, i) { |
edc3d884 | 16314 | err_printf(m, "Pipe [%d]:\n", i); |
ddf9c536 ID |
16315 | err_printf(m, " Power: %s\n", |
16316 | error->pipe[i].power_domain_on ? "on" : "off"); | |
edc3d884 | 16317 | err_printf(m, " SRC: %08x\n", error->pipe[i].source); |
f301b1e1 | 16318 | err_printf(m, " STAT: %08x\n", error->pipe[i].stat); |
edc3d884 MK |
16319 | |
16320 | err_printf(m, "Plane [%d]:\n", i); | |
16321 | err_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
16322 | err_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
80ca378b | 16323 | if (INTEL_INFO(dev)->gen <= 3) { |
edc3d884 MK |
16324 | err_printf(m, " SIZE: %08x\n", error->plane[i].size); |
16325 | err_printf(m, " POS: %08x\n", error->plane[i].pos); | |
80ca378b | 16326 | } |
4b71a570 | 16327 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
edc3d884 | 16328 | err_printf(m, " ADDR: %08x\n", error->plane[i].addr); |
c4a1d9e4 | 16329 | if (INTEL_INFO(dev)->gen >= 4) { |
edc3d884 MK |
16330 | err_printf(m, " SURF: %08x\n", error->plane[i].surface); |
16331 | err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
c4a1d9e4 CW |
16332 | } |
16333 | ||
edc3d884 MK |
16334 | err_printf(m, "Cursor [%d]:\n", i); |
16335 | err_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
16336 | err_printf(m, " POS: %08x\n", error->cursor[i].position); | |
16337 | err_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
c4a1d9e4 | 16338 | } |
63b66e5b CW |
16339 | |
16340 | for (i = 0; i < error->num_transcoders; i++) { | |
1cf84bb6 | 16341 | err_printf(m, "CPU transcoder: %c\n", |
63b66e5b | 16342 | transcoder_name(error->transcoder[i].cpu_transcoder)); |
ddf9c536 ID |
16343 | err_printf(m, " Power: %s\n", |
16344 | error->transcoder[i].power_domain_on ? "on" : "off"); | |
63b66e5b CW |
16345 | err_printf(m, " CONF: %08x\n", error->transcoder[i].conf); |
16346 | err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal); | |
16347 | err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank); | |
16348 | err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync); | |
16349 | err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal); | |
16350 | err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank); | |
16351 | err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync); | |
16352 | } | |
c4a1d9e4 | 16353 | } |
e2fcdaa9 VS |
16354 | |
16355 | void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file) | |
16356 | { | |
16357 | struct intel_crtc *crtc; | |
16358 | ||
16359 | for_each_intel_crtc(dev, crtc) { | |
16360 | struct intel_unpin_work *work; | |
e2fcdaa9 | 16361 | |
5e2d7afc | 16362 | spin_lock_irq(&dev->event_lock); |
e2fcdaa9 VS |
16363 | |
16364 | work = crtc->unpin_work; | |
16365 | ||
16366 | if (work && work->event && | |
16367 | work->event->base.file_priv == file) { | |
16368 | kfree(work->event); | |
16369 | work->event = NULL; | |
16370 | } | |
16371 | ||
5e2d7afc | 16372 | spin_unlock_irq(&dev->event_lock); |
e2fcdaa9 VS |
16373 | } |
16374 | } |