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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> |
79e53945 | 47 | |
465c120c | 48 | /* Primary plane formats for gen <= 3 */ |
568db4f2 | 49 | static const uint32_t i8xx_primary_formats[] = { |
67fe7dc5 DL |
50 | DRM_FORMAT_C8, |
51 | DRM_FORMAT_RGB565, | |
465c120c | 52 | DRM_FORMAT_XRGB1555, |
67fe7dc5 | 53 | DRM_FORMAT_XRGB8888, |
465c120c MR |
54 | }; |
55 | ||
56 | /* Primary plane formats for gen >= 4 */ | |
568db4f2 | 57 | static const uint32_t i965_primary_formats[] = { |
6c0fd451 DL |
58 | DRM_FORMAT_C8, |
59 | DRM_FORMAT_RGB565, | |
60 | DRM_FORMAT_XRGB8888, | |
61 | DRM_FORMAT_XBGR8888, | |
62 | DRM_FORMAT_XRGB2101010, | |
63 | DRM_FORMAT_XBGR2101010, | |
64 | }; | |
65 | ||
66 | static const uint32_t skl_primary_formats[] = { | |
67fe7dc5 DL |
67 | DRM_FORMAT_C8, |
68 | DRM_FORMAT_RGB565, | |
69 | DRM_FORMAT_XRGB8888, | |
465c120c | 70 | DRM_FORMAT_XBGR8888, |
67fe7dc5 | 71 | DRM_FORMAT_ARGB8888, |
465c120c MR |
72 | DRM_FORMAT_ABGR8888, |
73 | DRM_FORMAT_XRGB2101010, | |
465c120c | 74 | DRM_FORMAT_XBGR2101010, |
465c120c MR |
75 | }; |
76 | ||
3d7d6510 MR |
77 | /* Cursor formats */ |
78 | static const uint32_t intel_cursor_formats[] = { | |
79 | DRM_FORMAT_ARGB8888, | |
80 | }; | |
81 | ||
6b383a7f | 82 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
79e53945 | 83 | |
f1f644dc | 84 | static void i9xx_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 85 | struct intel_crtc_state *pipe_config); |
18442d08 | 86 | static void ironlake_pch_clock_get(struct intel_crtc *crtc, |
5cec258b | 87 | struct intel_crtc_state *pipe_config); |
f1f644dc | 88 | |
568c634a | 89 | static int intel_set_mode(struct drm_atomic_state *state); |
eb1bfe80 JB |
90 | static int intel_framebuffer_init(struct drm_device *dev, |
91 | struct intel_framebuffer *ifb, | |
92 | struct drm_mode_fb_cmd2 *mode_cmd, | |
93 | struct drm_i915_gem_object *obj); | |
5b18e57c DV |
94 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc); |
95 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc); | |
29407aab | 96 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, |
f769cd24 VK |
97 | struct intel_link_m_n *m_n, |
98 | struct intel_link_m_n *m2_n2); | |
29407aab | 99 | static void ironlake_set_pipeconf(struct drm_crtc *crtc); |
229fca97 DV |
100 | static void haswell_set_pipeconf(struct drm_crtc *crtc); |
101 | static void intel_set_pipe_csc(struct drm_crtc *crtc); | |
d288f65f | 102 | static void vlv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 103 | const struct intel_crtc_state *pipe_config); |
d288f65f | 104 | static void chv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 105 | const struct intel_crtc_state *pipe_config); |
ea2c67bb MR |
106 | static void intel_begin_crtc_commit(struct drm_crtc *crtc); |
107 | static void intel_finish_crtc_commit(struct drm_crtc *crtc); | |
549e2bfb CK |
108 | static void skl_init_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc, |
109 | struct intel_crtc_state *crtc_state); | |
5ab7b0b7 ID |
110 | static int i9xx_get_refclk(const struct intel_crtc_state *crtc_state, |
111 | int num_connectors); | |
043e9bda | 112 | static void intel_modeset_setup_hw_state(struct drm_device *dev); |
e7457a9a | 113 | |
0e32b39c DA |
114 | static struct intel_encoder *intel_find_encoder(struct intel_connector *connector, int pipe) |
115 | { | |
116 | if (!connector->mst_port) | |
117 | return connector->encoder; | |
118 | else | |
119 | return &connector->mst_port->mst_encoders[pipe]->base; | |
120 | } | |
121 | ||
79e53945 | 122 | typedef struct { |
0206e353 | 123 | int min, max; |
79e53945 JB |
124 | } intel_range_t; |
125 | ||
126 | typedef struct { | |
0206e353 AJ |
127 | int dot_limit; |
128 | int p2_slow, p2_fast; | |
79e53945 JB |
129 | } intel_p2_t; |
130 | ||
d4906093 ML |
131 | typedef struct intel_limit intel_limit_t; |
132 | struct intel_limit { | |
0206e353 AJ |
133 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
134 | intel_p2_t p2; | |
d4906093 | 135 | }; |
79e53945 | 136 | |
d2acd215 DV |
137 | int |
138 | intel_pch_rawclk(struct drm_device *dev) | |
139 | { | |
140 | struct drm_i915_private *dev_priv = dev->dev_private; | |
141 | ||
142 | WARN_ON(!HAS_PCH_SPLIT(dev)); | |
143 | ||
144 | return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK; | |
145 | } | |
146 | ||
021357ac CW |
147 | static inline u32 /* units of 100MHz */ |
148 | intel_fdi_link_freq(struct drm_device *dev) | |
149 | { | |
8b99e68c CW |
150 | if (IS_GEN5(dev)) { |
151 | struct drm_i915_private *dev_priv = dev->dev_private; | |
152 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
153 | } else | |
154 | return 27; | |
021357ac CW |
155 | } |
156 | ||
5d536e28 | 157 | static const intel_limit_t intel_limits_i8xx_dac = { |
0206e353 | 158 | .dot = { .min = 25000, .max = 350000 }, |
9c333719 | 159 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 160 | .n = { .min = 2, .max = 16 }, |
0206e353 AJ |
161 | .m = { .min = 96, .max = 140 }, |
162 | .m1 = { .min = 18, .max = 26 }, | |
163 | .m2 = { .min = 6, .max = 16 }, | |
164 | .p = { .min = 4, .max = 128 }, | |
165 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
166 | .p2 = { .dot_limit = 165000, |
167 | .p2_slow = 4, .p2_fast = 2 }, | |
e4b36699 KP |
168 | }; |
169 | ||
5d536e28 DV |
170 | static const intel_limit_t intel_limits_i8xx_dvo = { |
171 | .dot = { .min = 25000, .max = 350000 }, | |
9c333719 | 172 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 173 | .n = { .min = 2, .max = 16 }, |
5d536e28 DV |
174 | .m = { .min = 96, .max = 140 }, |
175 | .m1 = { .min = 18, .max = 26 }, | |
176 | .m2 = { .min = 6, .max = 16 }, | |
177 | .p = { .min = 4, .max = 128 }, | |
178 | .p1 = { .min = 2, .max = 33 }, | |
179 | .p2 = { .dot_limit = 165000, | |
180 | .p2_slow = 4, .p2_fast = 4 }, | |
181 | }; | |
182 | ||
e4b36699 | 183 | static const intel_limit_t intel_limits_i8xx_lvds = { |
0206e353 | 184 | .dot = { .min = 25000, .max = 350000 }, |
9c333719 | 185 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 186 | .n = { .min = 2, .max = 16 }, |
0206e353 AJ |
187 | .m = { .min = 96, .max = 140 }, |
188 | .m1 = { .min = 18, .max = 26 }, | |
189 | .m2 = { .min = 6, .max = 16 }, | |
190 | .p = { .min = 4, .max = 128 }, | |
191 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
192 | .p2 = { .dot_limit = 165000, |
193 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 | 194 | }; |
273e27ca | 195 | |
e4b36699 | 196 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
197 | .dot = { .min = 20000, .max = 400000 }, |
198 | .vco = { .min = 1400000, .max = 2800000 }, | |
199 | .n = { .min = 1, .max = 6 }, | |
200 | .m = { .min = 70, .max = 120 }, | |
4f7dfb67 PJ |
201 | .m1 = { .min = 8, .max = 18 }, |
202 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
203 | .p = { .min = 5, .max = 80 }, |
204 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
205 | .p2 = { .dot_limit = 200000, |
206 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
207 | }; |
208 | ||
209 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
210 | .dot = { .min = 20000, .max = 400000 }, |
211 | .vco = { .min = 1400000, .max = 2800000 }, | |
212 | .n = { .min = 1, .max = 6 }, | |
213 | .m = { .min = 70, .max = 120 }, | |
53a7d2d1 PJ |
214 | .m1 = { .min = 8, .max = 18 }, |
215 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
216 | .p = { .min = 7, .max = 98 }, |
217 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
218 | .p2 = { .dot_limit = 112000, |
219 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 KP |
220 | }; |
221 | ||
273e27ca | 222 | |
e4b36699 | 223 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
224 | .dot = { .min = 25000, .max = 270000 }, |
225 | .vco = { .min = 1750000, .max = 3500000}, | |
226 | .n = { .min = 1, .max = 4 }, | |
227 | .m = { .min = 104, .max = 138 }, | |
228 | .m1 = { .min = 17, .max = 23 }, | |
229 | .m2 = { .min = 5, .max = 11 }, | |
230 | .p = { .min = 10, .max = 30 }, | |
231 | .p1 = { .min = 1, .max = 3}, | |
232 | .p2 = { .dot_limit = 270000, | |
233 | .p2_slow = 10, | |
234 | .p2_fast = 10 | |
044c7c41 | 235 | }, |
e4b36699 KP |
236 | }; |
237 | ||
238 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
239 | .dot = { .min = 22000, .max = 400000 }, |
240 | .vco = { .min = 1750000, .max = 3500000}, | |
241 | .n = { .min = 1, .max = 4 }, | |
242 | .m = { .min = 104, .max = 138 }, | |
243 | .m1 = { .min = 16, .max = 23 }, | |
244 | .m2 = { .min = 5, .max = 11 }, | |
245 | .p = { .min = 5, .max = 80 }, | |
246 | .p1 = { .min = 1, .max = 8}, | |
247 | .p2 = { .dot_limit = 165000, | |
248 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
249 | }; |
250 | ||
251 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
252 | .dot = { .min = 20000, .max = 115000 }, |
253 | .vco = { .min = 1750000, .max = 3500000 }, | |
254 | .n = { .min = 1, .max = 3 }, | |
255 | .m = { .min = 104, .max = 138 }, | |
256 | .m1 = { .min = 17, .max = 23 }, | |
257 | .m2 = { .min = 5, .max = 11 }, | |
258 | .p = { .min = 28, .max = 112 }, | |
259 | .p1 = { .min = 2, .max = 8 }, | |
260 | .p2 = { .dot_limit = 0, | |
261 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 262 | }, |
e4b36699 KP |
263 | }; |
264 | ||
265 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
266 | .dot = { .min = 80000, .max = 224000 }, |
267 | .vco = { .min = 1750000, .max = 3500000 }, | |
268 | .n = { .min = 1, .max = 3 }, | |
269 | .m = { .min = 104, .max = 138 }, | |
270 | .m1 = { .min = 17, .max = 23 }, | |
271 | .m2 = { .min = 5, .max = 11 }, | |
272 | .p = { .min = 14, .max = 42 }, | |
273 | .p1 = { .min = 2, .max = 6 }, | |
274 | .p2 = { .dot_limit = 0, | |
275 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 276 | }, |
e4b36699 KP |
277 | }; |
278 | ||
f2b115e6 | 279 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
280 | .dot = { .min = 20000, .max = 400000}, |
281 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 282 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
283 | .n = { .min = 3, .max = 6 }, |
284 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 285 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
286 | .m1 = { .min = 0, .max = 0 }, |
287 | .m2 = { .min = 0, .max = 254 }, | |
288 | .p = { .min = 5, .max = 80 }, | |
289 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
290 | .p2 = { .dot_limit = 200000, |
291 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
292 | }; |
293 | ||
f2b115e6 | 294 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
295 | .dot = { .min = 20000, .max = 400000 }, |
296 | .vco = { .min = 1700000, .max = 3500000 }, | |
297 | .n = { .min = 3, .max = 6 }, | |
298 | .m = { .min = 2, .max = 256 }, | |
299 | .m1 = { .min = 0, .max = 0 }, | |
300 | .m2 = { .min = 0, .max = 254 }, | |
301 | .p = { .min = 7, .max = 112 }, | |
302 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
303 | .p2 = { .dot_limit = 112000, |
304 | .p2_slow = 14, .p2_fast = 14 }, | |
e4b36699 KP |
305 | }; |
306 | ||
273e27ca EA |
307 | /* Ironlake / Sandybridge |
308 | * | |
309 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
310 | * the range value for them is (actual_value - 2). | |
311 | */ | |
b91ad0ec | 312 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
313 | .dot = { .min = 25000, .max = 350000 }, |
314 | .vco = { .min = 1760000, .max = 3510000 }, | |
315 | .n = { .min = 1, .max = 5 }, | |
316 | .m = { .min = 79, .max = 127 }, | |
317 | .m1 = { .min = 12, .max = 22 }, | |
318 | .m2 = { .min = 5, .max = 9 }, | |
319 | .p = { .min = 5, .max = 80 }, | |
320 | .p1 = { .min = 1, .max = 8 }, | |
321 | .p2 = { .dot_limit = 225000, | |
322 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
323 | }; |
324 | ||
b91ad0ec | 325 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
326 | .dot = { .min = 25000, .max = 350000 }, |
327 | .vco = { .min = 1760000, .max = 3510000 }, | |
328 | .n = { .min = 1, .max = 3 }, | |
329 | .m = { .min = 79, .max = 118 }, | |
330 | .m1 = { .min = 12, .max = 22 }, | |
331 | .m2 = { .min = 5, .max = 9 }, | |
332 | .p = { .min = 28, .max = 112 }, | |
333 | .p1 = { .min = 2, .max = 8 }, | |
334 | .p2 = { .dot_limit = 225000, | |
335 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
336 | }; |
337 | ||
338 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
339 | .dot = { .min = 25000, .max = 350000 }, |
340 | .vco = { .min = 1760000, .max = 3510000 }, | |
341 | .n = { .min = 1, .max = 3 }, | |
342 | .m = { .min = 79, .max = 127 }, | |
343 | .m1 = { .min = 12, .max = 22 }, | |
344 | .m2 = { .min = 5, .max = 9 }, | |
345 | .p = { .min = 14, .max = 56 }, | |
346 | .p1 = { .min = 2, .max = 8 }, | |
347 | .p2 = { .dot_limit = 225000, | |
348 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
349 | }; |
350 | ||
273e27ca | 351 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 352 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
353 | .dot = { .min = 25000, .max = 350000 }, |
354 | .vco = { .min = 1760000, .max = 3510000 }, | |
355 | .n = { .min = 1, .max = 2 }, | |
356 | .m = { .min = 79, .max = 126 }, | |
357 | .m1 = { .min = 12, .max = 22 }, | |
358 | .m2 = { .min = 5, .max = 9 }, | |
359 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 360 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
361 | .p2 = { .dot_limit = 225000, |
362 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
363 | }; |
364 | ||
365 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
366 | .dot = { .min = 25000, .max = 350000 }, |
367 | .vco = { .min = 1760000, .max = 3510000 }, | |
368 | .n = { .min = 1, .max = 3 }, | |
369 | .m = { .min = 79, .max = 126 }, | |
370 | .m1 = { .min = 12, .max = 22 }, | |
371 | .m2 = { .min = 5, .max = 9 }, | |
372 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 373 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
374 | .p2 = { .dot_limit = 225000, |
375 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
376 | }; |
377 | ||
dc730512 | 378 | static const intel_limit_t intel_limits_vlv = { |
f01b7962 VS |
379 | /* |
380 | * These are the data rate limits (measured in fast clocks) | |
381 | * since those are the strictest limits we have. The fast | |
382 | * clock and actual rate limits are more relaxed, so checking | |
383 | * them would make no difference. | |
384 | */ | |
385 | .dot = { .min = 25000 * 5, .max = 270000 * 5 }, | |
75e53986 | 386 | .vco = { .min = 4000000, .max = 6000000 }, |
a0c4da24 | 387 | .n = { .min = 1, .max = 7 }, |
a0c4da24 JB |
388 | .m1 = { .min = 2, .max = 3 }, |
389 | .m2 = { .min = 11, .max = 156 }, | |
b99ab663 | 390 | .p1 = { .min = 2, .max = 3 }, |
5fdc9c49 | 391 | .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */ |
a0c4da24 JB |
392 | }; |
393 | ||
ef9348c8 CML |
394 | static const intel_limit_t intel_limits_chv = { |
395 | /* | |
396 | * These are the data rate limits (measured in fast clocks) | |
397 | * since those are the strictest limits we have. The fast | |
398 | * clock and actual rate limits are more relaxed, so checking | |
399 | * them would make no difference. | |
400 | */ | |
401 | .dot = { .min = 25000 * 5, .max = 540000 * 5}, | |
17fe1021 | 402 | .vco = { .min = 4800000, .max = 6480000 }, |
ef9348c8 CML |
403 | .n = { .min = 1, .max = 1 }, |
404 | .m1 = { .min = 2, .max = 2 }, | |
405 | .m2 = { .min = 24 << 22, .max = 175 << 22 }, | |
406 | .p1 = { .min = 2, .max = 4 }, | |
407 | .p2 = { .p2_slow = 1, .p2_fast = 14 }, | |
408 | }; | |
409 | ||
5ab7b0b7 ID |
410 | static const intel_limit_t intel_limits_bxt = { |
411 | /* FIXME: find real dot limits */ | |
412 | .dot = { .min = 0, .max = INT_MAX }, | |
e6292556 | 413 | .vco = { .min = 4800000, .max = 6700000 }, |
5ab7b0b7 ID |
414 | .n = { .min = 1, .max = 1 }, |
415 | .m1 = { .min = 2, .max = 2 }, | |
416 | /* FIXME: find real m2 limits */ | |
417 | .m2 = { .min = 2 << 22, .max = 255 << 22 }, | |
418 | .p1 = { .min = 2, .max = 4 }, | |
419 | .p2 = { .p2_slow = 1, .p2_fast = 20 }, | |
420 | }; | |
421 | ||
cdba954e ACO |
422 | static bool |
423 | needs_modeset(struct drm_crtc_state *state) | |
424 | { | |
425 | return state->mode_changed || state->active_changed; | |
426 | } | |
427 | ||
e0638cdf PZ |
428 | /** |
429 | * Returns whether any output on the specified pipe is of the specified type | |
430 | */ | |
4093561b | 431 | bool intel_pipe_has_type(struct intel_crtc *crtc, enum intel_output_type type) |
e0638cdf | 432 | { |
409ee761 | 433 | struct drm_device *dev = crtc->base.dev; |
e0638cdf PZ |
434 | struct intel_encoder *encoder; |
435 | ||
409ee761 | 436 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
e0638cdf PZ |
437 | if (encoder->type == type) |
438 | return true; | |
439 | ||
440 | return false; | |
441 | } | |
442 | ||
d0737e1d ACO |
443 | /** |
444 | * Returns whether any output on the specified pipe will have the specified | |
445 | * type after a staged modeset is complete, i.e., the same as | |
446 | * intel_pipe_has_type() but looking at encoder->new_crtc instead of | |
447 | * encoder->crtc. | |
448 | */ | |
a93e255f ACO |
449 | static bool intel_pipe_will_have_type(const struct intel_crtc_state *crtc_state, |
450 | int type) | |
d0737e1d | 451 | { |
a93e255f | 452 | struct drm_atomic_state *state = crtc_state->base.state; |
da3ced29 | 453 | struct drm_connector *connector; |
a93e255f | 454 | struct drm_connector_state *connector_state; |
d0737e1d | 455 | struct intel_encoder *encoder; |
a93e255f ACO |
456 | int i, num_connectors = 0; |
457 | ||
da3ced29 | 458 | for_each_connector_in_state(state, connector, connector_state, i) { |
a93e255f ACO |
459 | if (connector_state->crtc != crtc_state->base.crtc) |
460 | continue; | |
461 | ||
462 | num_connectors++; | |
d0737e1d | 463 | |
a93e255f ACO |
464 | encoder = to_intel_encoder(connector_state->best_encoder); |
465 | if (encoder->type == type) | |
d0737e1d | 466 | return true; |
a93e255f ACO |
467 | } |
468 | ||
469 | WARN_ON(num_connectors == 0); | |
d0737e1d ACO |
470 | |
471 | return false; | |
472 | } | |
473 | ||
a93e255f ACO |
474 | static const intel_limit_t * |
475 | intel_ironlake_limit(struct intel_crtc_state *crtc_state, int refclk) | |
2c07245f | 476 | { |
a93e255f | 477 | struct drm_device *dev = crtc_state->base.crtc->dev; |
2c07245f | 478 | const intel_limit_t *limit; |
b91ad0ec | 479 | |
a93e255f | 480 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
1974cad0 | 481 | if (intel_is_dual_link_lvds(dev)) { |
1b894b59 | 482 | if (refclk == 100000) |
b91ad0ec ZW |
483 | limit = &intel_limits_ironlake_dual_lvds_100m; |
484 | else | |
485 | limit = &intel_limits_ironlake_dual_lvds; | |
486 | } else { | |
1b894b59 | 487 | if (refclk == 100000) |
b91ad0ec ZW |
488 | limit = &intel_limits_ironlake_single_lvds_100m; |
489 | else | |
490 | limit = &intel_limits_ironlake_single_lvds; | |
491 | } | |
c6bb3538 | 492 | } else |
b91ad0ec | 493 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
494 | |
495 | return limit; | |
496 | } | |
497 | ||
a93e255f ACO |
498 | static const intel_limit_t * |
499 | intel_g4x_limit(struct intel_crtc_state *crtc_state) | |
044c7c41 | 500 | { |
a93e255f | 501 | struct drm_device *dev = crtc_state->base.crtc->dev; |
044c7c41 ML |
502 | const intel_limit_t *limit; |
503 | ||
a93e255f | 504 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
1974cad0 | 505 | if (intel_is_dual_link_lvds(dev)) |
e4b36699 | 506 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 | 507 | else |
e4b36699 | 508 | limit = &intel_limits_g4x_single_channel_lvds; |
a93e255f ACO |
509 | } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_HDMI) || |
510 | intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 511 | limit = &intel_limits_g4x_hdmi; |
a93e255f | 512 | } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 513 | limit = &intel_limits_g4x_sdvo; |
044c7c41 | 514 | } else /* The option is for other outputs */ |
e4b36699 | 515 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
516 | |
517 | return limit; | |
518 | } | |
519 | ||
a93e255f ACO |
520 | static const intel_limit_t * |
521 | intel_limit(struct intel_crtc_state *crtc_state, int refclk) | |
79e53945 | 522 | { |
a93e255f | 523 | struct drm_device *dev = crtc_state->base.crtc->dev; |
79e53945 JB |
524 | const intel_limit_t *limit; |
525 | ||
5ab7b0b7 ID |
526 | if (IS_BROXTON(dev)) |
527 | limit = &intel_limits_bxt; | |
528 | else if (HAS_PCH_SPLIT(dev)) | |
a93e255f | 529 | limit = intel_ironlake_limit(crtc_state, refclk); |
2c07245f | 530 | else if (IS_G4X(dev)) { |
a93e255f | 531 | limit = intel_g4x_limit(crtc_state); |
f2b115e6 | 532 | } else if (IS_PINEVIEW(dev)) { |
a93e255f | 533 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 534 | limit = &intel_limits_pineview_lvds; |
2177832f | 535 | else |
f2b115e6 | 536 | limit = &intel_limits_pineview_sdvo; |
ef9348c8 CML |
537 | } else if (IS_CHERRYVIEW(dev)) { |
538 | limit = &intel_limits_chv; | |
a0c4da24 | 539 | } else if (IS_VALLEYVIEW(dev)) { |
dc730512 | 540 | limit = &intel_limits_vlv; |
a6c45cf0 | 541 | } else if (!IS_GEN2(dev)) { |
a93e255f | 542 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) |
a6c45cf0 CW |
543 | limit = &intel_limits_i9xx_lvds; |
544 | else | |
545 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 | 546 | } else { |
a93e255f | 547 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) |
e4b36699 | 548 | limit = &intel_limits_i8xx_lvds; |
a93e255f | 549 | else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_DVO)) |
e4b36699 | 550 | limit = &intel_limits_i8xx_dvo; |
5d536e28 DV |
551 | else |
552 | limit = &intel_limits_i8xx_dac; | |
79e53945 JB |
553 | } |
554 | return limit; | |
555 | } | |
556 | ||
dccbea3b ID |
557 | /* |
558 | * Platform specific helpers to calculate the port PLL loopback- (clock.m), | |
559 | * and post-divider (clock.p) values, pre- (clock.vco) and post-divided fast | |
560 | * (clock.dot) clock rates. This fast dot clock is fed to the port's IO logic. | |
561 | * The helpers' return value is the rate of the clock that is fed to the | |
562 | * display engine's pipe which can be the above fast dot clock rate or a | |
563 | * divided-down version of it. | |
564 | */ | |
f2b115e6 | 565 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
dccbea3b | 566 | static int pnv_calc_dpll_params(int refclk, intel_clock_t *clock) |
79e53945 | 567 | { |
2177832f SL |
568 | clock->m = clock->m2 + 2; |
569 | clock->p = clock->p1 * clock->p2; | |
ed5ca77e | 570 | if (WARN_ON(clock->n == 0 || clock->p == 0)) |
dccbea3b | 571 | return 0; |
fb03ac01 VS |
572 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); |
573 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
574 | |
575 | return clock->dot; | |
2177832f SL |
576 | } |
577 | ||
7429e9d4 DV |
578 | static uint32_t i9xx_dpll_compute_m(struct dpll *dpll) |
579 | { | |
580 | return 5 * (dpll->m1 + 2) + (dpll->m2 + 2); | |
581 | } | |
582 | ||
dccbea3b | 583 | static int i9xx_calc_dpll_params(int refclk, intel_clock_t *clock) |
2177832f | 584 | { |
7429e9d4 | 585 | clock->m = i9xx_dpll_compute_m(clock); |
79e53945 | 586 | clock->p = clock->p1 * clock->p2; |
ed5ca77e | 587 | if (WARN_ON(clock->n + 2 == 0 || clock->p == 0)) |
dccbea3b | 588 | return 0; |
fb03ac01 VS |
589 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2); |
590 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
591 | |
592 | return clock->dot; | |
79e53945 JB |
593 | } |
594 | ||
dccbea3b | 595 | static int vlv_calc_dpll_params(int refclk, intel_clock_t *clock) |
589eca67 ID |
596 | { |
597 | clock->m = clock->m1 * clock->m2; | |
598 | clock->p = clock->p1 * clock->p2; | |
599 | if (WARN_ON(clock->n == 0 || clock->p == 0)) | |
dccbea3b | 600 | return 0; |
589eca67 ID |
601 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); |
602 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
603 | |
604 | return clock->dot / 5; | |
589eca67 ID |
605 | } |
606 | ||
dccbea3b | 607 | int chv_calc_dpll_params(int refclk, intel_clock_t *clock) |
ef9348c8 CML |
608 | { |
609 | clock->m = clock->m1 * clock->m2; | |
610 | clock->p = clock->p1 * clock->p2; | |
611 | if (WARN_ON(clock->n == 0 || clock->p == 0)) | |
dccbea3b | 612 | return 0; |
ef9348c8 CML |
613 | clock->vco = DIV_ROUND_CLOSEST_ULL((uint64_t)refclk * clock->m, |
614 | clock->n << 22); | |
615 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
616 | |
617 | return clock->dot / 5; | |
ef9348c8 CML |
618 | } |
619 | ||
7c04d1d9 | 620 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
621 | /** |
622 | * Returns whether the given set of divisors are valid for a given refclk with | |
623 | * the given connectors. | |
624 | */ | |
625 | ||
1b894b59 CW |
626 | static bool intel_PLL_is_valid(struct drm_device *dev, |
627 | const intel_limit_t *limit, | |
628 | const intel_clock_t *clock) | |
79e53945 | 629 | { |
f01b7962 VS |
630 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
631 | INTELPllInvalid("n out of range\n"); | |
79e53945 | 632 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 633 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 634 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 635 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 636 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 637 | INTELPllInvalid("m1 out of range\n"); |
f01b7962 | 638 | |
5ab7b0b7 | 639 | if (!IS_PINEVIEW(dev) && !IS_VALLEYVIEW(dev) && !IS_BROXTON(dev)) |
f01b7962 VS |
640 | if (clock->m1 <= clock->m2) |
641 | INTELPllInvalid("m1 <= m2\n"); | |
642 | ||
5ab7b0b7 | 643 | if (!IS_VALLEYVIEW(dev) && !IS_BROXTON(dev)) { |
f01b7962 VS |
644 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
645 | INTELPllInvalid("p out of range\n"); | |
646 | if (clock->m < limit->m.min || limit->m.max < clock->m) | |
647 | INTELPllInvalid("m out of range\n"); | |
648 | } | |
649 | ||
79e53945 | 650 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 651 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
652 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
653 | * connector, etc., rather than just a single range. | |
654 | */ | |
655 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 656 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
657 | |
658 | return true; | |
659 | } | |
660 | ||
3b1429d9 VS |
661 | static int |
662 | i9xx_select_p2_div(const intel_limit_t *limit, | |
663 | const struct intel_crtc_state *crtc_state, | |
664 | int target) | |
79e53945 | 665 | { |
3b1429d9 | 666 | struct drm_device *dev = crtc_state->base.crtc->dev; |
79e53945 | 667 | |
a93e255f | 668 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
79e53945 | 669 | /* |
a210b028 DV |
670 | * For LVDS just rely on its current settings for dual-channel. |
671 | * We haven't figured out how to reliably set up different | |
672 | * single/dual channel state, if we even can. | |
79e53945 | 673 | */ |
1974cad0 | 674 | if (intel_is_dual_link_lvds(dev)) |
3b1429d9 | 675 | return limit->p2.p2_fast; |
79e53945 | 676 | else |
3b1429d9 | 677 | return limit->p2.p2_slow; |
79e53945 JB |
678 | } else { |
679 | if (target < limit->p2.dot_limit) | |
3b1429d9 | 680 | return limit->p2.p2_slow; |
79e53945 | 681 | else |
3b1429d9 | 682 | return limit->p2.p2_fast; |
79e53945 | 683 | } |
3b1429d9 VS |
684 | } |
685 | ||
686 | static bool | |
687 | i9xx_find_best_dpll(const intel_limit_t *limit, | |
688 | struct intel_crtc_state *crtc_state, | |
689 | int target, int refclk, intel_clock_t *match_clock, | |
690 | intel_clock_t *best_clock) | |
691 | { | |
692 | struct drm_device *dev = crtc_state->base.crtc->dev; | |
693 | intel_clock_t clock; | |
694 | int err = target; | |
79e53945 | 695 | |
0206e353 | 696 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 697 | |
3b1429d9 VS |
698 | clock.p2 = i9xx_select_p2_div(limit, crtc_state, target); |
699 | ||
42158660 ZY |
700 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
701 | clock.m1++) { | |
702 | for (clock.m2 = limit->m2.min; | |
703 | clock.m2 <= limit->m2.max; clock.m2++) { | |
c0efc387 | 704 | if (clock.m2 >= clock.m1) |
42158660 ZY |
705 | break; |
706 | for (clock.n = limit->n.min; | |
707 | clock.n <= limit->n.max; clock.n++) { | |
708 | for (clock.p1 = limit->p1.min; | |
709 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
710 | int this_err; |
711 | ||
dccbea3b | 712 | i9xx_calc_dpll_params(refclk, &clock); |
ac58c3f0 DV |
713 | if (!intel_PLL_is_valid(dev, limit, |
714 | &clock)) | |
715 | continue; | |
716 | if (match_clock && | |
717 | clock.p != match_clock->p) | |
718 | continue; | |
719 | ||
720 | this_err = abs(clock.dot - target); | |
721 | if (this_err < err) { | |
722 | *best_clock = clock; | |
723 | err = this_err; | |
724 | } | |
725 | } | |
726 | } | |
727 | } | |
728 | } | |
729 | ||
730 | return (err != target); | |
731 | } | |
732 | ||
733 | static bool | |
a93e255f ACO |
734 | pnv_find_best_dpll(const intel_limit_t *limit, |
735 | struct intel_crtc_state *crtc_state, | |
ee9300bb DV |
736 | int target, int refclk, intel_clock_t *match_clock, |
737 | intel_clock_t *best_clock) | |
79e53945 | 738 | { |
3b1429d9 | 739 | struct drm_device *dev = crtc_state->base.crtc->dev; |
79e53945 | 740 | intel_clock_t clock; |
79e53945 JB |
741 | int err = target; |
742 | ||
0206e353 | 743 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 744 | |
3b1429d9 VS |
745 | clock.p2 = i9xx_select_p2_div(limit, crtc_state, target); |
746 | ||
42158660 ZY |
747 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
748 | clock.m1++) { | |
749 | for (clock.m2 = limit->m2.min; | |
750 | clock.m2 <= limit->m2.max; clock.m2++) { | |
42158660 ZY |
751 | for (clock.n = limit->n.min; |
752 | clock.n <= limit->n.max; clock.n++) { | |
753 | for (clock.p1 = limit->p1.min; | |
754 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
755 | int this_err; |
756 | ||
dccbea3b | 757 | pnv_calc_dpll_params(refclk, &clock); |
1b894b59 CW |
758 | if (!intel_PLL_is_valid(dev, limit, |
759 | &clock)) | |
79e53945 | 760 | continue; |
cec2f356 SP |
761 | if (match_clock && |
762 | clock.p != match_clock->p) | |
763 | continue; | |
79e53945 JB |
764 | |
765 | this_err = abs(clock.dot - target); | |
766 | if (this_err < err) { | |
767 | *best_clock = clock; | |
768 | err = this_err; | |
769 | } | |
770 | } | |
771 | } | |
772 | } | |
773 | } | |
774 | ||
775 | return (err != target); | |
776 | } | |
777 | ||
d4906093 | 778 | static bool |
a93e255f ACO |
779 | g4x_find_best_dpll(const intel_limit_t *limit, |
780 | struct intel_crtc_state *crtc_state, | |
ee9300bb DV |
781 | int target, int refclk, intel_clock_t *match_clock, |
782 | intel_clock_t *best_clock) | |
d4906093 | 783 | { |
3b1429d9 | 784 | struct drm_device *dev = crtc_state->base.crtc->dev; |
d4906093 ML |
785 | intel_clock_t clock; |
786 | int max_n; | |
3b1429d9 | 787 | bool found = false; |
6ba770dc AJ |
788 | /* approximately equals target * 0.00585 */ |
789 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
790 | |
791 | memset(best_clock, 0, sizeof(*best_clock)); | |
3b1429d9 VS |
792 | |
793 | clock.p2 = i9xx_select_p2_div(limit, crtc_state, target); | |
794 | ||
d4906093 | 795 | max_n = limit->n.max; |
f77f13e2 | 796 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 797 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 798 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
799 | for (clock.m1 = limit->m1.max; |
800 | clock.m1 >= limit->m1.min; clock.m1--) { | |
801 | for (clock.m2 = limit->m2.max; | |
802 | clock.m2 >= limit->m2.min; clock.m2--) { | |
803 | for (clock.p1 = limit->p1.max; | |
804 | clock.p1 >= limit->p1.min; clock.p1--) { | |
805 | int this_err; | |
806 | ||
dccbea3b | 807 | i9xx_calc_dpll_params(refclk, &clock); |
1b894b59 CW |
808 | if (!intel_PLL_is_valid(dev, limit, |
809 | &clock)) | |
d4906093 | 810 | continue; |
1b894b59 CW |
811 | |
812 | this_err = abs(clock.dot - target); | |
d4906093 ML |
813 | if (this_err < err_most) { |
814 | *best_clock = clock; | |
815 | err_most = this_err; | |
816 | max_n = clock.n; | |
817 | found = true; | |
818 | } | |
819 | } | |
820 | } | |
821 | } | |
822 | } | |
2c07245f ZW |
823 | return found; |
824 | } | |
825 | ||
d5dd62bd ID |
826 | /* |
827 | * Check if the calculated PLL configuration is more optimal compared to the | |
828 | * best configuration and error found so far. Return the calculated error. | |
829 | */ | |
830 | static bool vlv_PLL_is_optimal(struct drm_device *dev, int target_freq, | |
831 | const intel_clock_t *calculated_clock, | |
832 | const intel_clock_t *best_clock, | |
833 | unsigned int best_error_ppm, | |
834 | unsigned int *error_ppm) | |
835 | { | |
9ca3ba01 ID |
836 | /* |
837 | * For CHV ignore the error and consider only the P value. | |
838 | * Prefer a bigger P value based on HW requirements. | |
839 | */ | |
840 | if (IS_CHERRYVIEW(dev)) { | |
841 | *error_ppm = 0; | |
842 | ||
843 | return calculated_clock->p > best_clock->p; | |
844 | } | |
845 | ||
24be4e46 ID |
846 | if (WARN_ON_ONCE(!target_freq)) |
847 | return false; | |
848 | ||
d5dd62bd ID |
849 | *error_ppm = div_u64(1000000ULL * |
850 | abs(target_freq - calculated_clock->dot), | |
851 | target_freq); | |
852 | /* | |
853 | * Prefer a better P value over a better (smaller) error if the error | |
854 | * is small. Ensure this preference for future configurations too by | |
855 | * setting the error to 0. | |
856 | */ | |
857 | if (*error_ppm < 100 && calculated_clock->p > best_clock->p) { | |
858 | *error_ppm = 0; | |
859 | ||
860 | return true; | |
861 | } | |
862 | ||
863 | return *error_ppm + 10 < best_error_ppm; | |
864 | } | |
865 | ||
a0c4da24 | 866 | static bool |
a93e255f ACO |
867 | vlv_find_best_dpll(const intel_limit_t *limit, |
868 | struct intel_crtc_state *crtc_state, | |
ee9300bb DV |
869 | int target, int refclk, intel_clock_t *match_clock, |
870 | intel_clock_t *best_clock) | |
a0c4da24 | 871 | { |
a93e255f | 872 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
a919ff14 | 873 | struct drm_device *dev = crtc->base.dev; |
6b4bf1c4 | 874 | intel_clock_t clock; |
69e4f900 | 875 | unsigned int bestppm = 1000000; |
27e639bf VS |
876 | /* min update 19.2 MHz */ |
877 | int max_n = min(limit->n.max, refclk / 19200); | |
49e497ef | 878 | bool found = false; |
a0c4da24 | 879 | |
6b4bf1c4 VS |
880 | target *= 5; /* fast clock */ |
881 | ||
882 | memset(best_clock, 0, sizeof(*best_clock)); | |
a0c4da24 JB |
883 | |
884 | /* based on hardware requirement, prefer smaller n to precision */ | |
27e639bf | 885 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
811bbf05 | 886 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { |
889059d8 | 887 | for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow; |
c1a9ae43 | 888 | clock.p2 -= clock.p2 > 10 ? 2 : 1) { |
6b4bf1c4 | 889 | clock.p = clock.p1 * clock.p2; |
a0c4da24 | 890 | /* based on hardware requirement, prefer bigger m1,m2 values */ |
6b4bf1c4 | 891 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) { |
d5dd62bd | 892 | unsigned int ppm; |
69e4f900 | 893 | |
6b4bf1c4 VS |
894 | clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n, |
895 | refclk * clock.m1); | |
896 | ||
dccbea3b | 897 | vlv_calc_dpll_params(refclk, &clock); |
43b0ac53 | 898 | |
f01b7962 VS |
899 | if (!intel_PLL_is_valid(dev, limit, |
900 | &clock)) | |
43b0ac53 VS |
901 | continue; |
902 | ||
d5dd62bd ID |
903 | if (!vlv_PLL_is_optimal(dev, target, |
904 | &clock, | |
905 | best_clock, | |
906 | bestppm, &ppm)) | |
907 | continue; | |
6b4bf1c4 | 908 | |
d5dd62bd ID |
909 | *best_clock = clock; |
910 | bestppm = ppm; | |
911 | found = true; | |
a0c4da24 JB |
912 | } |
913 | } | |
914 | } | |
915 | } | |
a0c4da24 | 916 | |
49e497ef | 917 | return found; |
a0c4da24 | 918 | } |
a4fc5ed6 | 919 | |
ef9348c8 | 920 | static bool |
a93e255f ACO |
921 | chv_find_best_dpll(const intel_limit_t *limit, |
922 | struct intel_crtc_state *crtc_state, | |
ef9348c8 CML |
923 | int target, int refclk, intel_clock_t *match_clock, |
924 | intel_clock_t *best_clock) | |
925 | { | |
a93e255f | 926 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
a919ff14 | 927 | struct drm_device *dev = crtc->base.dev; |
9ca3ba01 | 928 | unsigned int best_error_ppm; |
ef9348c8 CML |
929 | intel_clock_t clock; |
930 | uint64_t m2; | |
931 | int found = false; | |
932 | ||
933 | memset(best_clock, 0, sizeof(*best_clock)); | |
9ca3ba01 | 934 | best_error_ppm = 1000000; |
ef9348c8 CML |
935 | |
936 | /* | |
937 | * Based on hardware doc, the n always set to 1, and m1 always | |
938 | * set to 2. If requires to support 200Mhz refclk, we need to | |
939 | * revisit this because n may not 1 anymore. | |
940 | */ | |
941 | clock.n = 1, clock.m1 = 2; | |
942 | target *= 5; /* fast clock */ | |
943 | ||
944 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { | |
945 | for (clock.p2 = limit->p2.p2_fast; | |
946 | clock.p2 >= limit->p2.p2_slow; | |
947 | clock.p2 -= clock.p2 > 10 ? 2 : 1) { | |
9ca3ba01 | 948 | unsigned int error_ppm; |
ef9348c8 CML |
949 | |
950 | clock.p = clock.p1 * clock.p2; | |
951 | ||
952 | m2 = DIV_ROUND_CLOSEST_ULL(((uint64_t)target * clock.p * | |
953 | clock.n) << 22, refclk * clock.m1); | |
954 | ||
955 | if (m2 > INT_MAX/clock.m1) | |
956 | continue; | |
957 | ||
958 | clock.m2 = m2; | |
959 | ||
dccbea3b | 960 | chv_calc_dpll_params(refclk, &clock); |
ef9348c8 CML |
961 | |
962 | if (!intel_PLL_is_valid(dev, limit, &clock)) | |
963 | continue; | |
964 | ||
9ca3ba01 ID |
965 | if (!vlv_PLL_is_optimal(dev, target, &clock, best_clock, |
966 | best_error_ppm, &error_ppm)) | |
967 | continue; | |
968 | ||
969 | *best_clock = clock; | |
970 | best_error_ppm = error_ppm; | |
971 | found = true; | |
ef9348c8 CML |
972 | } |
973 | } | |
974 | ||
975 | return found; | |
976 | } | |
977 | ||
5ab7b0b7 ID |
978 | bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock, |
979 | intel_clock_t *best_clock) | |
980 | { | |
981 | int refclk = i9xx_get_refclk(crtc_state, 0); | |
982 | ||
983 | return chv_find_best_dpll(intel_limit(crtc_state, refclk), crtc_state, | |
984 | target_clock, refclk, NULL, best_clock); | |
985 | } | |
986 | ||
20ddf665 VS |
987 | bool intel_crtc_active(struct drm_crtc *crtc) |
988 | { | |
989 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
990 | ||
991 | /* Be paranoid as we can arrive here with only partial | |
992 | * state retrieved from the hardware during setup. | |
993 | * | |
241bfc38 | 994 | * We can ditch the adjusted_mode.crtc_clock check as soon |
20ddf665 VS |
995 | * as Haswell has gained clock readout/fastboot support. |
996 | * | |
66e514c1 | 997 | * We can ditch the crtc->primary->fb check as soon as we can |
20ddf665 | 998 | * properly reconstruct framebuffers. |
c3d1f436 MR |
999 | * |
1000 | * FIXME: The intel_crtc->active here should be switched to | |
1001 | * crtc->state->active once we have proper CRTC states wired up | |
1002 | * for atomic. | |
20ddf665 | 1003 | */ |
c3d1f436 | 1004 | return intel_crtc->active && crtc->primary->state->fb && |
6e3c9717 | 1005 | intel_crtc->config->base.adjusted_mode.crtc_clock; |
20ddf665 VS |
1006 | } |
1007 | ||
a5c961d1 PZ |
1008 | enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv, |
1009 | enum pipe pipe) | |
1010 | { | |
1011 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
1012 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1013 | ||
6e3c9717 | 1014 | return intel_crtc->config->cpu_transcoder; |
a5c961d1 PZ |
1015 | } |
1016 | ||
fbf49ea2 VS |
1017 | static bool pipe_dsl_stopped(struct drm_device *dev, enum pipe pipe) |
1018 | { | |
1019 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1020 | u32 reg = PIPEDSL(pipe); | |
1021 | u32 line1, line2; | |
1022 | u32 line_mask; | |
1023 | ||
1024 | if (IS_GEN2(dev)) | |
1025 | line_mask = DSL_LINEMASK_GEN2; | |
1026 | else | |
1027 | line_mask = DSL_LINEMASK_GEN3; | |
1028 | ||
1029 | line1 = I915_READ(reg) & line_mask; | |
6adfb1ef | 1030 | msleep(5); |
fbf49ea2 VS |
1031 | line2 = I915_READ(reg) & line_mask; |
1032 | ||
1033 | return line1 == line2; | |
1034 | } | |
1035 | ||
ab7ad7f6 KP |
1036 | /* |
1037 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
575f7ab7 | 1038 | * @crtc: crtc whose pipe to wait for |
9d0498a2 JB |
1039 | * |
1040 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
1041 | * spinning on the vblank interrupt status bit, since we won't actually | |
1042 | * see an interrupt when the pipe is disabled. | |
1043 | * | |
ab7ad7f6 KP |
1044 | * On Gen4 and above: |
1045 | * wait for the pipe register state bit to turn off | |
1046 | * | |
1047 | * Otherwise: | |
1048 | * wait for the display line value to settle (it usually | |
1049 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 1050 | * |
9d0498a2 | 1051 | */ |
575f7ab7 | 1052 | static void intel_wait_for_pipe_off(struct intel_crtc *crtc) |
9d0498a2 | 1053 | { |
575f7ab7 | 1054 | struct drm_device *dev = crtc->base.dev; |
9d0498a2 | 1055 | struct drm_i915_private *dev_priv = dev->dev_private; |
6e3c9717 | 1056 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
575f7ab7 | 1057 | enum pipe pipe = crtc->pipe; |
ab7ad7f6 KP |
1058 | |
1059 | if (INTEL_INFO(dev)->gen >= 4) { | |
702e7a56 | 1060 | int reg = PIPECONF(cpu_transcoder); |
ab7ad7f6 KP |
1061 | |
1062 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
1063 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
1064 | 100)) | |
284637d9 | 1065 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1066 | } else { |
ab7ad7f6 | 1067 | /* Wait for the display line to settle */ |
fbf49ea2 | 1068 | if (wait_for(pipe_dsl_stopped(dev, pipe), 100)) |
284637d9 | 1069 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1070 | } |
79e53945 JB |
1071 | } |
1072 | ||
b0ea7d37 DL |
1073 | /* |
1074 | * ibx_digital_port_connected - is the specified port connected? | |
1075 | * @dev_priv: i915 private structure | |
1076 | * @port: the port to test | |
1077 | * | |
1078 | * Returns true if @port is connected, false otherwise. | |
1079 | */ | |
1080 | bool ibx_digital_port_connected(struct drm_i915_private *dev_priv, | |
1081 | struct intel_digital_port *port) | |
1082 | { | |
1083 | u32 bit; | |
1084 | ||
c36346e3 | 1085 | if (HAS_PCH_IBX(dev_priv->dev)) { |
eba905b2 | 1086 | switch (port->port) { |
c36346e3 DL |
1087 | case PORT_B: |
1088 | bit = SDE_PORTB_HOTPLUG; | |
1089 | break; | |
1090 | case PORT_C: | |
1091 | bit = SDE_PORTC_HOTPLUG; | |
1092 | break; | |
1093 | case PORT_D: | |
1094 | bit = SDE_PORTD_HOTPLUG; | |
1095 | break; | |
1096 | default: | |
1097 | return true; | |
1098 | } | |
1099 | } else { | |
eba905b2 | 1100 | switch (port->port) { |
c36346e3 DL |
1101 | case PORT_B: |
1102 | bit = SDE_PORTB_HOTPLUG_CPT; | |
1103 | break; | |
1104 | case PORT_C: | |
1105 | bit = SDE_PORTC_HOTPLUG_CPT; | |
1106 | break; | |
1107 | case PORT_D: | |
1108 | bit = SDE_PORTD_HOTPLUG_CPT; | |
1109 | break; | |
1110 | default: | |
1111 | return true; | |
1112 | } | |
b0ea7d37 DL |
1113 | } |
1114 | ||
1115 | return I915_READ(SDEISR) & bit; | |
1116 | } | |
1117 | ||
b24e7179 JB |
1118 | static const char *state_string(bool enabled) |
1119 | { | |
1120 | return enabled ? "on" : "off"; | |
1121 | } | |
1122 | ||
1123 | /* Only for pre-ILK configs */ | |
55607e8a DV |
1124 | void assert_pll(struct drm_i915_private *dev_priv, |
1125 | enum pipe pipe, bool state) | |
b24e7179 JB |
1126 | { |
1127 | int reg; | |
1128 | u32 val; | |
1129 | bool cur_state; | |
1130 | ||
1131 | reg = DPLL(pipe); | |
1132 | val = I915_READ(reg); | |
1133 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
e2c719b7 | 1134 | I915_STATE_WARN(cur_state != state, |
b24e7179 JB |
1135 | "PLL state assertion failure (expected %s, current %s)\n", |
1136 | state_string(state), state_string(cur_state)); | |
1137 | } | |
b24e7179 | 1138 | |
23538ef1 JN |
1139 | /* XXX: the dsi pll is shared between MIPI DSI ports */ |
1140 | static void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state) | |
1141 | { | |
1142 | u32 val; | |
1143 | bool cur_state; | |
1144 | ||
a580516d | 1145 | mutex_lock(&dev_priv->sb_lock); |
23538ef1 | 1146 | val = vlv_cck_read(dev_priv, CCK_REG_DSI_PLL_CONTROL); |
a580516d | 1147 | mutex_unlock(&dev_priv->sb_lock); |
23538ef1 JN |
1148 | |
1149 | cur_state = val & DSI_PLL_VCO_EN; | |
e2c719b7 | 1150 | I915_STATE_WARN(cur_state != state, |
23538ef1 JN |
1151 | "DSI PLL state assertion failure (expected %s, current %s)\n", |
1152 | state_string(state), state_string(cur_state)); | |
1153 | } | |
1154 | #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true) | |
1155 | #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false) | |
1156 | ||
55607e8a | 1157 | struct intel_shared_dpll * |
e2b78267 DV |
1158 | intel_crtc_to_shared_dpll(struct intel_crtc *crtc) |
1159 | { | |
1160 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
1161 | ||
6e3c9717 | 1162 | if (crtc->config->shared_dpll < 0) |
e2b78267 DV |
1163 | return NULL; |
1164 | ||
6e3c9717 | 1165 | return &dev_priv->shared_dplls[crtc->config->shared_dpll]; |
e2b78267 DV |
1166 | } |
1167 | ||
040484af | 1168 | /* For ILK+ */ |
55607e8a DV |
1169 | void assert_shared_dpll(struct drm_i915_private *dev_priv, |
1170 | struct intel_shared_dpll *pll, | |
1171 | bool state) | |
040484af | 1172 | { |
040484af | 1173 | bool cur_state; |
5358901f | 1174 | struct intel_dpll_hw_state hw_state; |
040484af | 1175 | |
92b27b08 | 1176 | if (WARN (!pll, |
46edb027 | 1177 | "asserting DPLL %s with no DPLL\n", state_string(state))) |
ee7b9f93 | 1178 | return; |
ee7b9f93 | 1179 | |
5358901f | 1180 | cur_state = pll->get_hw_state(dev_priv, pll, &hw_state); |
e2c719b7 | 1181 | I915_STATE_WARN(cur_state != state, |
5358901f DV |
1182 | "%s assertion failure (expected %s, current %s)\n", |
1183 | pll->name, state_string(state), state_string(cur_state)); | |
040484af | 1184 | } |
040484af JB |
1185 | |
1186 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
1187 | enum pipe pipe, bool state) | |
1188 | { | |
1189 | int reg; | |
1190 | u32 val; | |
1191 | bool cur_state; | |
ad80a810 PZ |
1192 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1193 | pipe); | |
040484af | 1194 | |
affa9354 PZ |
1195 | if (HAS_DDI(dev_priv->dev)) { |
1196 | /* DDI does not have a specific FDI_TX register */ | |
ad80a810 | 1197 | reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
bf507ef7 | 1198 | val = I915_READ(reg); |
ad80a810 | 1199 | cur_state = !!(val & TRANS_DDI_FUNC_ENABLE); |
bf507ef7 ED |
1200 | } else { |
1201 | reg = FDI_TX_CTL(pipe); | |
1202 | val = I915_READ(reg); | |
1203 | cur_state = !!(val & FDI_TX_ENABLE); | |
1204 | } | |
e2c719b7 | 1205 | I915_STATE_WARN(cur_state != state, |
040484af JB |
1206 | "FDI TX state assertion failure (expected %s, current %s)\n", |
1207 | state_string(state), state_string(cur_state)); | |
1208 | } | |
1209 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
1210 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
1211 | ||
1212 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
1213 | enum pipe pipe, bool state) | |
1214 | { | |
1215 | int reg; | |
1216 | u32 val; | |
1217 | bool cur_state; | |
1218 | ||
d63fa0dc PZ |
1219 | reg = FDI_RX_CTL(pipe); |
1220 | val = I915_READ(reg); | |
1221 | cur_state = !!(val & FDI_RX_ENABLE); | |
e2c719b7 | 1222 | I915_STATE_WARN(cur_state != state, |
040484af JB |
1223 | "FDI RX state assertion failure (expected %s, current %s)\n", |
1224 | state_string(state), state_string(cur_state)); | |
1225 | } | |
1226 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
1227 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1228 | ||
1229 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1230 | enum pipe pipe) | |
1231 | { | |
1232 | int reg; | |
1233 | u32 val; | |
1234 | ||
1235 | /* ILK FDI PLL is always enabled */ | |
3d13ef2e | 1236 | if (INTEL_INFO(dev_priv->dev)->gen == 5) |
040484af JB |
1237 | return; |
1238 | ||
bf507ef7 | 1239 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
affa9354 | 1240 | if (HAS_DDI(dev_priv->dev)) |
bf507ef7 ED |
1241 | return; |
1242 | ||
040484af JB |
1243 | reg = FDI_TX_CTL(pipe); |
1244 | val = I915_READ(reg); | |
e2c719b7 | 1245 | I915_STATE_WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); |
040484af JB |
1246 | } |
1247 | ||
55607e8a DV |
1248 | void assert_fdi_rx_pll(struct drm_i915_private *dev_priv, |
1249 | enum pipe pipe, bool state) | |
040484af JB |
1250 | { |
1251 | int reg; | |
1252 | u32 val; | |
55607e8a | 1253 | bool cur_state; |
040484af JB |
1254 | |
1255 | reg = FDI_RX_CTL(pipe); | |
1256 | val = I915_READ(reg); | |
55607e8a | 1257 | cur_state = !!(val & FDI_RX_PLL_ENABLE); |
e2c719b7 | 1258 | I915_STATE_WARN(cur_state != state, |
55607e8a DV |
1259 | "FDI RX PLL assertion failure (expected %s, current %s)\n", |
1260 | state_string(state), state_string(cur_state)); | |
040484af JB |
1261 | } |
1262 | ||
b680c37a DV |
1263 | void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1264 | enum pipe pipe) | |
ea0760cf | 1265 | { |
bedd4dba JN |
1266 | struct drm_device *dev = dev_priv->dev; |
1267 | int pp_reg; | |
ea0760cf JB |
1268 | u32 val; |
1269 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1270 | bool locked = true; |
ea0760cf | 1271 | |
bedd4dba JN |
1272 | if (WARN_ON(HAS_DDI(dev))) |
1273 | return; | |
1274 | ||
1275 | if (HAS_PCH_SPLIT(dev)) { | |
1276 | u32 port_sel; | |
1277 | ||
ea0760cf | 1278 | pp_reg = PCH_PP_CONTROL; |
bedd4dba JN |
1279 | port_sel = I915_READ(PCH_PP_ON_DELAYS) & PANEL_PORT_SELECT_MASK; |
1280 | ||
1281 | if (port_sel == PANEL_PORT_SELECT_LVDS && | |
1282 | I915_READ(PCH_LVDS) & LVDS_PIPEB_SELECT) | |
1283 | panel_pipe = PIPE_B; | |
1284 | /* XXX: else fix for eDP */ | |
1285 | } else if (IS_VALLEYVIEW(dev)) { | |
1286 | /* presumably write lock depends on pipe, not port select */ | |
1287 | pp_reg = VLV_PIPE_PP_CONTROL(pipe); | |
1288 | panel_pipe = pipe; | |
ea0760cf JB |
1289 | } else { |
1290 | pp_reg = PP_CONTROL; | |
bedd4dba JN |
1291 | if (I915_READ(LVDS) & LVDS_PIPEB_SELECT) |
1292 | panel_pipe = PIPE_B; | |
ea0760cf JB |
1293 | } |
1294 | ||
1295 | val = I915_READ(pp_reg); | |
1296 | if (!(val & PANEL_POWER_ON) || | |
ec49ba2d | 1297 | ((val & PANEL_UNLOCK_MASK) == PANEL_UNLOCK_REGS)) |
ea0760cf JB |
1298 | locked = false; |
1299 | ||
e2c719b7 | 1300 | I915_STATE_WARN(panel_pipe == pipe && locked, |
ea0760cf | 1301 | "panel assertion failure, pipe %c regs locked\n", |
9db4a9c7 | 1302 | pipe_name(pipe)); |
ea0760cf JB |
1303 | } |
1304 | ||
93ce0ba6 JN |
1305 | static void assert_cursor(struct drm_i915_private *dev_priv, |
1306 | enum pipe pipe, bool state) | |
1307 | { | |
1308 | struct drm_device *dev = dev_priv->dev; | |
1309 | bool cur_state; | |
1310 | ||
d9d82081 | 1311 | if (IS_845G(dev) || IS_I865G(dev)) |
93ce0ba6 | 1312 | cur_state = I915_READ(_CURACNTR) & CURSOR_ENABLE; |
d9d82081 | 1313 | else |
5efb3e28 | 1314 | cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE; |
93ce0ba6 | 1315 | |
e2c719b7 | 1316 | I915_STATE_WARN(cur_state != state, |
93ce0ba6 JN |
1317 | "cursor on pipe %c assertion failure (expected %s, current %s)\n", |
1318 | pipe_name(pipe), state_string(state), state_string(cur_state)); | |
1319 | } | |
1320 | #define assert_cursor_enabled(d, p) assert_cursor(d, p, true) | |
1321 | #define assert_cursor_disabled(d, p) assert_cursor(d, p, false) | |
1322 | ||
b840d907 JB |
1323 | void assert_pipe(struct drm_i915_private *dev_priv, |
1324 | enum pipe pipe, bool state) | |
b24e7179 JB |
1325 | { |
1326 | int reg; | |
1327 | u32 val; | |
63d7bbe9 | 1328 | bool cur_state; |
702e7a56 PZ |
1329 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1330 | pipe); | |
b24e7179 | 1331 | |
b6b5d049 VS |
1332 | /* if we need the pipe quirk it must be always on */ |
1333 | if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
1334 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
8e636784 DV |
1335 | state = true; |
1336 | ||
f458ebbc | 1337 | if (!intel_display_power_is_enabled(dev_priv, |
b97186f0 | 1338 | POWER_DOMAIN_TRANSCODER(cpu_transcoder))) { |
69310161 PZ |
1339 | cur_state = false; |
1340 | } else { | |
1341 | reg = PIPECONF(cpu_transcoder); | |
1342 | val = I915_READ(reg); | |
1343 | cur_state = !!(val & PIPECONF_ENABLE); | |
1344 | } | |
1345 | ||
e2c719b7 | 1346 | I915_STATE_WARN(cur_state != state, |
63d7bbe9 | 1347 | "pipe %c assertion failure (expected %s, current %s)\n", |
9db4a9c7 | 1348 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1349 | } |
1350 | ||
931872fc CW |
1351 | static void assert_plane(struct drm_i915_private *dev_priv, |
1352 | enum plane plane, bool state) | |
b24e7179 JB |
1353 | { |
1354 | int reg; | |
1355 | u32 val; | |
931872fc | 1356 | bool cur_state; |
b24e7179 JB |
1357 | |
1358 | reg = DSPCNTR(plane); | |
1359 | val = I915_READ(reg); | |
931872fc | 1360 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
e2c719b7 | 1361 | I915_STATE_WARN(cur_state != state, |
931872fc CW |
1362 | "plane %c assertion failure (expected %s, current %s)\n", |
1363 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1364 | } |
1365 | ||
931872fc CW |
1366 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1367 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1368 | ||
b24e7179 JB |
1369 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1370 | enum pipe pipe) | |
1371 | { | |
653e1026 | 1372 | struct drm_device *dev = dev_priv->dev; |
b24e7179 JB |
1373 | int reg, i; |
1374 | u32 val; | |
1375 | int cur_pipe; | |
1376 | ||
653e1026 VS |
1377 | /* Primary planes are fixed to pipes on gen4+ */ |
1378 | if (INTEL_INFO(dev)->gen >= 4) { | |
28c05794 AJ |
1379 | reg = DSPCNTR(pipe); |
1380 | val = I915_READ(reg); | |
e2c719b7 | 1381 | I915_STATE_WARN(val & DISPLAY_PLANE_ENABLE, |
28c05794 AJ |
1382 | "plane %c assertion failure, should be disabled but not\n", |
1383 | plane_name(pipe)); | |
19ec1358 | 1384 | return; |
28c05794 | 1385 | } |
19ec1358 | 1386 | |
b24e7179 | 1387 | /* Need to check both planes against the pipe */ |
055e393f | 1388 | for_each_pipe(dev_priv, i) { |
b24e7179 JB |
1389 | reg = DSPCNTR(i); |
1390 | val = I915_READ(reg); | |
1391 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1392 | DISPPLANE_SEL_PIPE_SHIFT; | |
e2c719b7 | 1393 | I915_STATE_WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, |
9db4a9c7 JB |
1394 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1395 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1396 | } |
1397 | } | |
1398 | ||
19332d7a JB |
1399 | static void assert_sprites_disabled(struct drm_i915_private *dev_priv, |
1400 | enum pipe pipe) | |
1401 | { | |
20674eef | 1402 | struct drm_device *dev = dev_priv->dev; |
1fe47785 | 1403 | int reg, sprite; |
19332d7a JB |
1404 | u32 val; |
1405 | ||
7feb8b88 | 1406 | if (INTEL_INFO(dev)->gen >= 9) { |
3bdcfc0c | 1407 | for_each_sprite(dev_priv, pipe, sprite) { |
7feb8b88 | 1408 | val = I915_READ(PLANE_CTL(pipe, sprite)); |
e2c719b7 | 1409 | I915_STATE_WARN(val & PLANE_CTL_ENABLE, |
7feb8b88 DL |
1410 | "plane %d assertion failure, should be off on pipe %c but is still active\n", |
1411 | sprite, pipe_name(pipe)); | |
1412 | } | |
1413 | } else if (IS_VALLEYVIEW(dev)) { | |
3bdcfc0c | 1414 | for_each_sprite(dev_priv, pipe, sprite) { |
1fe47785 | 1415 | reg = SPCNTR(pipe, sprite); |
20674eef | 1416 | val = I915_READ(reg); |
e2c719b7 | 1417 | I915_STATE_WARN(val & SP_ENABLE, |
20674eef | 1418 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
1fe47785 | 1419 | sprite_name(pipe, sprite), pipe_name(pipe)); |
20674eef VS |
1420 | } |
1421 | } else if (INTEL_INFO(dev)->gen >= 7) { | |
1422 | reg = SPRCTL(pipe); | |
19332d7a | 1423 | val = I915_READ(reg); |
e2c719b7 | 1424 | I915_STATE_WARN(val & SPRITE_ENABLE, |
06da8da2 | 1425 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
20674eef VS |
1426 | plane_name(pipe), pipe_name(pipe)); |
1427 | } else if (INTEL_INFO(dev)->gen >= 5) { | |
1428 | reg = DVSCNTR(pipe); | |
19332d7a | 1429 | val = I915_READ(reg); |
e2c719b7 | 1430 | I915_STATE_WARN(val & DVS_ENABLE, |
06da8da2 | 1431 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
20674eef | 1432 | plane_name(pipe), pipe_name(pipe)); |
19332d7a JB |
1433 | } |
1434 | } | |
1435 | ||
08c71e5e VS |
1436 | static void assert_vblank_disabled(struct drm_crtc *crtc) |
1437 | { | |
e2c719b7 | 1438 | if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc) == 0)) |
08c71e5e VS |
1439 | drm_crtc_vblank_put(crtc); |
1440 | } | |
1441 | ||
89eff4be | 1442 | static void ibx_assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
92f2584a JB |
1443 | { |
1444 | u32 val; | |
1445 | bool enabled; | |
1446 | ||
e2c719b7 | 1447 | I915_STATE_WARN_ON(!(HAS_PCH_IBX(dev_priv->dev) || HAS_PCH_CPT(dev_priv->dev))); |
9d82aa17 | 1448 | |
92f2584a JB |
1449 | val = I915_READ(PCH_DREF_CONTROL); |
1450 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1451 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
e2c719b7 | 1452 | I915_STATE_WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); |
92f2584a JB |
1453 | } |
1454 | ||
ab9412ba DV |
1455 | static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv, |
1456 | enum pipe pipe) | |
92f2584a JB |
1457 | { |
1458 | int reg; | |
1459 | u32 val; | |
1460 | bool enabled; | |
1461 | ||
ab9412ba | 1462 | reg = PCH_TRANSCONF(pipe); |
92f2584a JB |
1463 | val = I915_READ(reg); |
1464 | enabled = !!(val & TRANS_ENABLE); | |
e2c719b7 | 1465 | I915_STATE_WARN(enabled, |
9db4a9c7 JB |
1466 | "transcoder assertion failed, should be off on pipe %c but is still active\n", |
1467 | pipe_name(pipe)); | |
92f2584a JB |
1468 | } |
1469 | ||
4e634389 KP |
1470 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1471 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1472 | { |
1473 | if ((val & DP_PORT_EN) == 0) | |
1474 | return false; | |
1475 | ||
1476 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1477 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); | |
1478 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); | |
1479 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) | |
1480 | return false; | |
44f37d1f CML |
1481 | } else if (IS_CHERRYVIEW(dev_priv->dev)) { |
1482 | if ((val & DP_PIPE_MASK_CHV) != DP_PIPE_SELECT_CHV(pipe)) | |
1483 | return false; | |
f0575e92 KP |
1484 | } else { |
1485 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1486 | return false; | |
1487 | } | |
1488 | return true; | |
1489 | } | |
1490 | ||
1519b995 KP |
1491 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1492 | enum pipe pipe, u32 val) | |
1493 | { | |
dc0fa718 | 1494 | if ((val & SDVO_ENABLE) == 0) |
1519b995 KP |
1495 | return false; |
1496 | ||
1497 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
dc0fa718 | 1498 | if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe)) |
1519b995 | 1499 | return false; |
44f37d1f CML |
1500 | } else if (IS_CHERRYVIEW(dev_priv->dev)) { |
1501 | if ((val & SDVO_PIPE_SEL_MASK_CHV) != SDVO_PIPE_SEL_CHV(pipe)) | |
1502 | return false; | |
1519b995 | 1503 | } else { |
dc0fa718 | 1504 | if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe)) |
1519b995 KP |
1505 | return false; |
1506 | } | |
1507 | return true; | |
1508 | } | |
1509 | ||
1510 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1511 | enum pipe pipe, u32 val) | |
1512 | { | |
1513 | if ((val & LVDS_PORT_EN) == 0) | |
1514 | return false; | |
1515 | ||
1516 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1517 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1518 | return false; | |
1519 | } else { | |
1520 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1521 | return false; | |
1522 | } | |
1523 | return true; | |
1524 | } | |
1525 | ||
1526 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1527 | enum pipe pipe, u32 val) | |
1528 | { | |
1529 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1530 | return false; | |
1531 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1532 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1533 | return false; | |
1534 | } else { | |
1535 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1536 | return false; | |
1537 | } | |
1538 | return true; | |
1539 | } | |
1540 | ||
291906f1 | 1541 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0575e92 | 1542 | enum pipe pipe, int reg, u32 port_sel) |
291906f1 | 1543 | { |
47a05eca | 1544 | u32 val = I915_READ(reg); |
e2c719b7 | 1545 | I915_STATE_WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1546 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1547 | reg, pipe_name(pipe)); |
de9a35ab | 1548 | |
e2c719b7 | 1549 | I915_STATE_WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 |
75c5da27 | 1550 | && (val & DP_PIPEB_SELECT), |
de9a35ab | 1551 | "IBX PCH dp port still using transcoder B\n"); |
291906f1 JB |
1552 | } |
1553 | ||
1554 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1555 | enum pipe pipe, int reg) | |
1556 | { | |
47a05eca | 1557 | u32 val = I915_READ(reg); |
e2c719b7 | 1558 | I915_STATE_WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1559 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1560 | reg, pipe_name(pipe)); |
de9a35ab | 1561 | |
e2c719b7 | 1562 | I915_STATE_WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0 |
75c5da27 | 1563 | && (val & SDVO_PIPE_B_SELECT), |
de9a35ab | 1564 | "IBX PCH hdmi port still using transcoder B\n"); |
291906f1 JB |
1565 | } |
1566 | ||
1567 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1568 | enum pipe pipe) | |
1569 | { | |
1570 | int reg; | |
1571 | u32 val; | |
291906f1 | 1572 | |
f0575e92 KP |
1573 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1574 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1575 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1576 | |
1577 | reg = PCH_ADPA; | |
1578 | val = I915_READ(reg); | |
e2c719b7 | 1579 | I915_STATE_WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1580 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1581 | pipe_name(pipe)); |
291906f1 JB |
1582 | |
1583 | reg = PCH_LVDS; | |
1584 | val = I915_READ(reg); | |
e2c719b7 | 1585 | I915_STATE_WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1586 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1587 | pipe_name(pipe)); |
291906f1 | 1588 | |
e2debe91 PZ |
1589 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB); |
1590 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC); | |
1591 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID); | |
291906f1 JB |
1592 | } |
1593 | ||
40e9cf64 JB |
1594 | static void intel_init_dpio(struct drm_device *dev) |
1595 | { | |
1596 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1597 | ||
1598 | if (!IS_VALLEYVIEW(dev)) | |
1599 | return; | |
1600 | ||
a09caddd CML |
1601 | /* |
1602 | * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C), | |
1603 | * CHV x1 PHY (DP/HDMI D) | |
1604 | * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C) | |
1605 | */ | |
1606 | if (IS_CHERRYVIEW(dev)) { | |
1607 | DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO_2; | |
1608 | DPIO_PHY_IOSF_PORT(DPIO_PHY1) = IOSF_PORT_DPIO; | |
1609 | } else { | |
1610 | DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO; | |
1611 | } | |
5382f5f3 JB |
1612 | } |
1613 | ||
d288f65f | 1614 | static void vlv_enable_pll(struct intel_crtc *crtc, |
5cec258b | 1615 | const struct intel_crtc_state *pipe_config) |
87442f73 | 1616 | { |
426115cf DV |
1617 | struct drm_device *dev = crtc->base.dev; |
1618 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1619 | int reg = DPLL(crtc->pipe); | |
d288f65f | 1620 | u32 dpll = pipe_config->dpll_hw_state.dpll; |
87442f73 | 1621 | |
426115cf | 1622 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87442f73 DV |
1623 | |
1624 | /* No really, not for ILK+ */ | |
1625 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev)); | |
1626 | ||
1627 | /* PLL is protected by panel, make sure we can write it */ | |
6a9e7363 | 1628 | if (IS_MOBILE(dev_priv->dev)) |
426115cf | 1629 | assert_panel_unlocked(dev_priv, crtc->pipe); |
87442f73 | 1630 | |
426115cf DV |
1631 | I915_WRITE(reg, dpll); |
1632 | POSTING_READ(reg); | |
1633 | udelay(150); | |
1634 | ||
1635 | if (wait_for(((I915_READ(reg) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) | |
1636 | DRM_ERROR("DPLL %d failed to lock\n", crtc->pipe); | |
1637 | ||
d288f65f | 1638 | I915_WRITE(DPLL_MD(crtc->pipe), pipe_config->dpll_hw_state.dpll_md); |
426115cf | 1639 | POSTING_READ(DPLL_MD(crtc->pipe)); |
87442f73 DV |
1640 | |
1641 | /* We do this three times for luck */ | |
426115cf | 1642 | I915_WRITE(reg, dpll); |
87442f73 DV |
1643 | POSTING_READ(reg); |
1644 | udelay(150); /* wait for warmup */ | |
426115cf | 1645 | I915_WRITE(reg, dpll); |
87442f73 DV |
1646 | POSTING_READ(reg); |
1647 | udelay(150); /* wait for warmup */ | |
426115cf | 1648 | I915_WRITE(reg, dpll); |
87442f73 DV |
1649 | POSTING_READ(reg); |
1650 | udelay(150); /* wait for warmup */ | |
1651 | } | |
1652 | ||
d288f65f | 1653 | static void chv_enable_pll(struct intel_crtc *crtc, |
5cec258b | 1654 | const struct intel_crtc_state *pipe_config) |
9d556c99 CML |
1655 | { |
1656 | struct drm_device *dev = crtc->base.dev; | |
1657 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1658 | int pipe = crtc->pipe; | |
1659 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
9d556c99 CML |
1660 | u32 tmp; |
1661 | ||
1662 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
1663 | ||
1664 | BUG_ON(!IS_CHERRYVIEW(dev_priv->dev)); | |
1665 | ||
a580516d | 1666 | mutex_lock(&dev_priv->sb_lock); |
9d556c99 CML |
1667 | |
1668 | /* Enable back the 10bit clock to display controller */ | |
1669 | tmp = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)); | |
1670 | tmp |= DPIO_DCLKP_EN; | |
1671 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), tmp); | |
1672 | ||
54433e91 VS |
1673 | mutex_unlock(&dev_priv->sb_lock); |
1674 | ||
9d556c99 CML |
1675 | /* |
1676 | * Need to wait > 100ns between dclkp clock enable bit and PLL enable. | |
1677 | */ | |
1678 | udelay(1); | |
1679 | ||
1680 | /* Enable PLL */ | |
d288f65f | 1681 | I915_WRITE(DPLL(pipe), pipe_config->dpll_hw_state.dpll); |
9d556c99 CML |
1682 | |
1683 | /* Check PLL is locked */ | |
a11b0703 | 1684 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) |
9d556c99 CML |
1685 | DRM_ERROR("PLL %d failed to lock\n", pipe); |
1686 | ||
a11b0703 | 1687 | /* not sure when this should be written */ |
d288f65f | 1688 | I915_WRITE(DPLL_MD(pipe), pipe_config->dpll_hw_state.dpll_md); |
a11b0703 | 1689 | POSTING_READ(DPLL_MD(pipe)); |
9d556c99 CML |
1690 | } |
1691 | ||
1c4e0274 VS |
1692 | static int intel_num_dvo_pipes(struct drm_device *dev) |
1693 | { | |
1694 | struct intel_crtc *crtc; | |
1695 | int count = 0; | |
1696 | ||
1697 | for_each_intel_crtc(dev, crtc) | |
3538b9df | 1698 | count += crtc->base.state->active && |
409ee761 | 1699 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO); |
1c4e0274 VS |
1700 | |
1701 | return count; | |
1702 | } | |
1703 | ||
66e3d5c0 | 1704 | static void i9xx_enable_pll(struct intel_crtc *crtc) |
63d7bbe9 | 1705 | { |
66e3d5c0 DV |
1706 | struct drm_device *dev = crtc->base.dev; |
1707 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1708 | int reg = DPLL(crtc->pipe); | |
6e3c9717 | 1709 | u32 dpll = crtc->config->dpll_hw_state.dpll; |
63d7bbe9 | 1710 | |
66e3d5c0 | 1711 | assert_pipe_disabled(dev_priv, crtc->pipe); |
58c6eaa2 | 1712 | |
63d7bbe9 | 1713 | /* No really, not for ILK+ */ |
3d13ef2e | 1714 | BUG_ON(INTEL_INFO(dev)->gen >= 5); |
63d7bbe9 JB |
1715 | |
1716 | /* PLL is protected by panel, make sure we can write it */ | |
66e3d5c0 DV |
1717 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
1718 | assert_panel_unlocked(dev_priv, crtc->pipe); | |
63d7bbe9 | 1719 | |
1c4e0274 VS |
1720 | /* Enable DVO 2x clock on both PLLs if necessary */ |
1721 | if (IS_I830(dev) && intel_num_dvo_pipes(dev) > 0) { | |
1722 | /* | |
1723 | * It appears to be important that we don't enable this | |
1724 | * for the current pipe before otherwise configuring the | |
1725 | * PLL. No idea how this should be handled if multiple | |
1726 | * DVO outputs are enabled simultaneosly. | |
1727 | */ | |
1728 | dpll |= DPLL_DVO_2X_MODE; | |
1729 | I915_WRITE(DPLL(!crtc->pipe), | |
1730 | I915_READ(DPLL(!crtc->pipe)) | DPLL_DVO_2X_MODE); | |
1731 | } | |
66e3d5c0 DV |
1732 | |
1733 | /* Wait for the clocks to stabilize. */ | |
1734 | POSTING_READ(reg); | |
1735 | udelay(150); | |
1736 | ||
1737 | if (INTEL_INFO(dev)->gen >= 4) { | |
1738 | I915_WRITE(DPLL_MD(crtc->pipe), | |
6e3c9717 | 1739 | crtc->config->dpll_hw_state.dpll_md); |
66e3d5c0 DV |
1740 | } else { |
1741 | /* The pixel multiplier can only be updated once the | |
1742 | * DPLL is enabled and the clocks are stable. | |
1743 | * | |
1744 | * So write it again. | |
1745 | */ | |
1746 | I915_WRITE(reg, dpll); | |
1747 | } | |
63d7bbe9 JB |
1748 | |
1749 | /* We do this three times for luck */ | |
66e3d5c0 | 1750 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1751 | POSTING_READ(reg); |
1752 | udelay(150); /* wait for warmup */ | |
66e3d5c0 | 1753 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1754 | POSTING_READ(reg); |
1755 | udelay(150); /* wait for warmup */ | |
66e3d5c0 | 1756 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1757 | POSTING_READ(reg); |
1758 | udelay(150); /* wait for warmup */ | |
1759 | } | |
1760 | ||
1761 | /** | |
50b44a44 | 1762 | * i9xx_disable_pll - disable a PLL |
63d7bbe9 JB |
1763 | * @dev_priv: i915 private structure |
1764 | * @pipe: pipe PLL to disable | |
1765 | * | |
1766 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1767 | * | |
1768 | * Note! This is for pre-ILK only. | |
1769 | */ | |
1c4e0274 | 1770 | static void i9xx_disable_pll(struct intel_crtc *crtc) |
63d7bbe9 | 1771 | { |
1c4e0274 VS |
1772 | struct drm_device *dev = crtc->base.dev; |
1773 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1774 | enum pipe pipe = crtc->pipe; | |
1775 | ||
1776 | /* Disable DVO 2x clock on both PLLs if necessary */ | |
1777 | if (IS_I830(dev) && | |
409ee761 | 1778 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO) && |
3538b9df | 1779 | !intel_num_dvo_pipes(dev)) { |
1c4e0274 VS |
1780 | I915_WRITE(DPLL(PIPE_B), |
1781 | I915_READ(DPLL(PIPE_B)) & ~DPLL_DVO_2X_MODE); | |
1782 | I915_WRITE(DPLL(PIPE_A), | |
1783 | I915_READ(DPLL(PIPE_A)) & ~DPLL_DVO_2X_MODE); | |
1784 | } | |
1785 | ||
b6b5d049 VS |
1786 | /* Don't disable pipe or pipe PLLs if needed */ |
1787 | if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
1788 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
63d7bbe9 JB |
1789 | return; |
1790 | ||
1791 | /* Make sure the pipe isn't still relying on us */ | |
1792 | assert_pipe_disabled(dev_priv, pipe); | |
1793 | ||
b8afb911 | 1794 | I915_WRITE(DPLL(pipe), DPLL_VGA_MODE_DIS); |
50b44a44 | 1795 | POSTING_READ(DPLL(pipe)); |
63d7bbe9 JB |
1796 | } |
1797 | ||
f6071166 JB |
1798 | static void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
1799 | { | |
b8afb911 | 1800 | u32 val; |
f6071166 JB |
1801 | |
1802 | /* Make sure the pipe isn't still relying on us */ | |
1803 | assert_pipe_disabled(dev_priv, pipe); | |
1804 | ||
e5cbfbfb ID |
1805 | /* |
1806 | * Leave integrated clock source and reference clock enabled for pipe B. | |
1807 | * The latter is needed for VGA hotplug / manual detection. | |
1808 | */ | |
b8afb911 | 1809 | val = DPLL_VGA_MODE_DIS; |
f6071166 | 1810 | if (pipe == PIPE_B) |
60bfe44f | 1811 | val = DPLL_INTEGRATED_CRI_CLK_VLV | DPLL_REF_CLK_ENABLE_VLV; |
f6071166 JB |
1812 | I915_WRITE(DPLL(pipe), val); |
1813 | POSTING_READ(DPLL(pipe)); | |
076ed3b2 CML |
1814 | |
1815 | } | |
1816 | ||
1817 | static void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1818 | { | |
d752048d | 1819 | enum dpio_channel port = vlv_pipe_to_channel(pipe); |
076ed3b2 CML |
1820 | u32 val; |
1821 | ||
a11b0703 VS |
1822 | /* Make sure the pipe isn't still relying on us */ |
1823 | assert_pipe_disabled(dev_priv, pipe); | |
076ed3b2 | 1824 | |
a11b0703 | 1825 | /* Set PLL en = 0 */ |
60bfe44f VS |
1826 | val = DPLL_SSC_REF_CLK_CHV | |
1827 | DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS; | |
a11b0703 VS |
1828 | if (pipe != PIPE_A) |
1829 | val |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
1830 | I915_WRITE(DPLL(pipe), val); | |
1831 | POSTING_READ(DPLL(pipe)); | |
d752048d | 1832 | |
a580516d | 1833 | mutex_lock(&dev_priv->sb_lock); |
d752048d VS |
1834 | |
1835 | /* Disable 10bit clock to display controller */ | |
1836 | val = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)); | |
1837 | val &= ~DPIO_DCLKP_EN; | |
1838 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), val); | |
1839 | ||
61407f6d VS |
1840 | /* disable left/right clock distribution */ |
1841 | if (pipe != PIPE_B) { | |
1842 | val = vlv_dpio_read(dev_priv, pipe, _CHV_CMN_DW5_CH0); | |
1843 | val &= ~(CHV_BUFLEFTENA1_MASK | CHV_BUFRIGHTENA1_MASK); | |
1844 | vlv_dpio_write(dev_priv, pipe, _CHV_CMN_DW5_CH0, val); | |
1845 | } else { | |
1846 | val = vlv_dpio_read(dev_priv, pipe, _CHV_CMN_DW1_CH1); | |
1847 | val &= ~(CHV_BUFLEFTENA2_MASK | CHV_BUFRIGHTENA2_MASK); | |
1848 | vlv_dpio_write(dev_priv, pipe, _CHV_CMN_DW1_CH1, val); | |
1849 | } | |
1850 | ||
a580516d | 1851 | mutex_unlock(&dev_priv->sb_lock); |
f6071166 JB |
1852 | } |
1853 | ||
e4607fcf | 1854 | void vlv_wait_port_ready(struct drm_i915_private *dev_priv, |
9b6de0a1 VS |
1855 | struct intel_digital_port *dport, |
1856 | unsigned int expected_mask) | |
89b667f8 JB |
1857 | { |
1858 | u32 port_mask; | |
00fc31b7 | 1859 | int dpll_reg; |
89b667f8 | 1860 | |
e4607fcf CML |
1861 | switch (dport->port) { |
1862 | case PORT_B: | |
89b667f8 | 1863 | port_mask = DPLL_PORTB_READY_MASK; |
00fc31b7 | 1864 | dpll_reg = DPLL(0); |
e4607fcf CML |
1865 | break; |
1866 | case PORT_C: | |
89b667f8 | 1867 | port_mask = DPLL_PORTC_READY_MASK; |
00fc31b7 | 1868 | dpll_reg = DPLL(0); |
9b6de0a1 | 1869 | expected_mask <<= 4; |
00fc31b7 CML |
1870 | break; |
1871 | case PORT_D: | |
1872 | port_mask = DPLL_PORTD_READY_MASK; | |
1873 | dpll_reg = DPIO_PHY_STATUS; | |
e4607fcf CML |
1874 | break; |
1875 | default: | |
1876 | BUG(); | |
1877 | } | |
89b667f8 | 1878 | |
9b6de0a1 VS |
1879 | if (wait_for((I915_READ(dpll_reg) & port_mask) == expected_mask, 1000)) |
1880 | WARN(1, "timed out waiting for port %c ready: got 0x%x, expected 0x%x\n", | |
1881 | port_name(dport->port), I915_READ(dpll_reg) & port_mask, expected_mask); | |
89b667f8 JB |
1882 | } |
1883 | ||
b14b1055 DV |
1884 | static void intel_prepare_shared_dpll(struct intel_crtc *crtc) |
1885 | { | |
1886 | struct drm_device *dev = crtc->base.dev; | |
1887 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1888 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); | |
1889 | ||
be19f0ff CW |
1890 | if (WARN_ON(pll == NULL)) |
1891 | return; | |
1892 | ||
3e369b76 | 1893 | WARN_ON(!pll->config.crtc_mask); |
b14b1055 DV |
1894 | if (pll->active == 0) { |
1895 | DRM_DEBUG_DRIVER("setting up %s\n", pll->name); | |
1896 | WARN_ON(pll->on); | |
1897 | assert_shared_dpll_disabled(dev_priv, pll); | |
1898 | ||
1899 | pll->mode_set(dev_priv, pll); | |
1900 | } | |
1901 | } | |
1902 | ||
92f2584a | 1903 | /** |
85b3894f | 1904 | * intel_enable_shared_dpll - enable PCH PLL |
92f2584a JB |
1905 | * @dev_priv: i915 private structure |
1906 | * @pipe: pipe PLL to enable | |
1907 | * | |
1908 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1909 | * drives the transcoder clock. | |
1910 | */ | |
85b3894f | 1911 | static void intel_enable_shared_dpll(struct intel_crtc *crtc) |
92f2584a | 1912 | { |
3d13ef2e DL |
1913 | struct drm_device *dev = crtc->base.dev; |
1914 | struct drm_i915_private *dev_priv = dev->dev_private; | |
e2b78267 | 1915 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); |
92f2584a | 1916 | |
87a875bb | 1917 | if (WARN_ON(pll == NULL)) |
48da64a8 CW |
1918 | return; |
1919 | ||
3e369b76 | 1920 | if (WARN_ON(pll->config.crtc_mask == 0)) |
48da64a8 | 1921 | return; |
ee7b9f93 | 1922 | |
74dd6928 | 1923 | DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n", |
46edb027 | 1924 | pll->name, pll->active, pll->on, |
e2b78267 | 1925 | crtc->base.base.id); |
92f2584a | 1926 | |
cdbd2316 DV |
1927 | if (pll->active++) { |
1928 | WARN_ON(!pll->on); | |
e9d6944e | 1929 | assert_shared_dpll_enabled(dev_priv, pll); |
ee7b9f93 JB |
1930 | return; |
1931 | } | |
f4a091c7 | 1932 | WARN_ON(pll->on); |
ee7b9f93 | 1933 | |
bd2bb1b9 PZ |
1934 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); |
1935 | ||
46edb027 | 1936 | DRM_DEBUG_KMS("enabling %s\n", pll->name); |
e7b903d2 | 1937 | pll->enable(dev_priv, pll); |
ee7b9f93 | 1938 | pll->on = true; |
92f2584a JB |
1939 | } |
1940 | ||
f6daaec2 | 1941 | static void intel_disable_shared_dpll(struct intel_crtc *crtc) |
92f2584a | 1942 | { |
3d13ef2e DL |
1943 | struct drm_device *dev = crtc->base.dev; |
1944 | struct drm_i915_private *dev_priv = dev->dev_private; | |
e2b78267 | 1945 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); |
4c609cb8 | 1946 | |
92f2584a | 1947 | /* PCH only available on ILK+ */ |
3d13ef2e | 1948 | BUG_ON(INTEL_INFO(dev)->gen < 5); |
eddfcbcd ML |
1949 | if (pll == NULL) |
1950 | return; | |
92f2584a | 1951 | |
eddfcbcd | 1952 | if (WARN_ON(!(pll->config.crtc_mask & (1 << drm_crtc_index(&crtc->base))))) |
48da64a8 | 1953 | return; |
7a419866 | 1954 | |
46edb027 DV |
1955 | DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n", |
1956 | pll->name, pll->active, pll->on, | |
e2b78267 | 1957 | crtc->base.base.id); |
7a419866 | 1958 | |
48da64a8 | 1959 | if (WARN_ON(pll->active == 0)) { |
e9d6944e | 1960 | assert_shared_dpll_disabled(dev_priv, pll); |
48da64a8 CW |
1961 | return; |
1962 | } | |
1963 | ||
e9d6944e | 1964 | assert_shared_dpll_enabled(dev_priv, pll); |
f4a091c7 | 1965 | WARN_ON(!pll->on); |
cdbd2316 | 1966 | if (--pll->active) |
7a419866 | 1967 | return; |
ee7b9f93 | 1968 | |
46edb027 | 1969 | DRM_DEBUG_KMS("disabling %s\n", pll->name); |
e7b903d2 | 1970 | pll->disable(dev_priv, pll); |
ee7b9f93 | 1971 | pll->on = false; |
bd2bb1b9 PZ |
1972 | |
1973 | intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS); | |
92f2584a JB |
1974 | } |
1975 | ||
b8a4f404 PZ |
1976 | static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
1977 | enum pipe pipe) | |
040484af | 1978 | { |
23670b32 | 1979 | struct drm_device *dev = dev_priv->dev; |
7c26e5c6 | 1980 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
e2b78267 | 1981 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
23670b32 | 1982 | uint32_t reg, val, pipeconf_val; |
040484af JB |
1983 | |
1984 | /* PCH only available on ILK+ */ | |
55522f37 | 1985 | BUG_ON(!HAS_PCH_SPLIT(dev)); |
040484af JB |
1986 | |
1987 | /* Make sure PCH DPLL is enabled */ | |
e72f9fbf | 1988 | assert_shared_dpll_enabled(dev_priv, |
e9d6944e | 1989 | intel_crtc_to_shared_dpll(intel_crtc)); |
040484af JB |
1990 | |
1991 | /* FDI must be feeding us bits for PCH ports */ | |
1992 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1993 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1994 | ||
23670b32 DV |
1995 | if (HAS_PCH_CPT(dev)) { |
1996 | /* Workaround: Set the timing override bit before enabling the | |
1997 | * pch transcoder. */ | |
1998 | reg = TRANS_CHICKEN2(pipe); | |
1999 | val = I915_READ(reg); | |
2000 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; | |
2001 | I915_WRITE(reg, val); | |
59c859d6 | 2002 | } |
23670b32 | 2003 | |
ab9412ba | 2004 | reg = PCH_TRANSCONF(pipe); |
040484af | 2005 | val = I915_READ(reg); |
5f7f726d | 2006 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
2007 | |
2008 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
2009 | /* | |
c5de7c6f VS |
2010 | * Make the BPC in transcoder be consistent with |
2011 | * that in pipeconf reg. For HDMI we must use 8bpc | |
2012 | * here for both 8bpc and 12bpc. | |
e9bcff5c | 2013 | */ |
dfd07d72 | 2014 | val &= ~PIPECONF_BPC_MASK; |
c5de7c6f VS |
2015 | if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_HDMI)) |
2016 | val |= PIPECONF_8BPC; | |
2017 | else | |
2018 | val |= pipeconf_val & PIPECONF_BPC_MASK; | |
e9bcff5c | 2019 | } |
5f7f726d PZ |
2020 | |
2021 | val &= ~TRANS_INTERLACE_MASK; | |
2022 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 | 2023 | if (HAS_PCH_IBX(dev_priv->dev) && |
409ee761 | 2024 | intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
7c26e5c6 PZ |
2025 | val |= TRANS_LEGACY_INTERLACED_ILK; |
2026 | else | |
2027 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
2028 | else |
2029 | val |= TRANS_PROGRESSIVE; | |
2030 | ||
040484af JB |
2031 | I915_WRITE(reg, val | TRANS_ENABLE); |
2032 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
4bb6f1f3 | 2033 | DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe)); |
040484af JB |
2034 | } |
2035 | ||
8fb033d7 | 2036 | static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
937bb610 | 2037 | enum transcoder cpu_transcoder) |
040484af | 2038 | { |
8fb033d7 | 2039 | u32 val, pipeconf_val; |
8fb033d7 PZ |
2040 | |
2041 | /* PCH only available on ILK+ */ | |
55522f37 | 2042 | BUG_ON(!HAS_PCH_SPLIT(dev_priv->dev)); |
8fb033d7 | 2043 | |
8fb033d7 | 2044 | /* FDI must be feeding us bits for PCH ports */ |
1a240d4d | 2045 | assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder); |
937bb610 | 2046 | assert_fdi_rx_enabled(dev_priv, TRANSCODER_A); |
8fb033d7 | 2047 | |
223a6fdf PZ |
2048 | /* Workaround: set timing override bit. */ |
2049 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 2050 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf PZ |
2051 | I915_WRITE(_TRANSA_CHICKEN2, val); |
2052 | ||
25f3ef11 | 2053 | val = TRANS_ENABLE; |
937bb610 | 2054 | pipeconf_val = I915_READ(PIPECONF(cpu_transcoder)); |
8fb033d7 | 2055 | |
9a76b1c6 PZ |
2056 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) == |
2057 | PIPECONF_INTERLACED_ILK) | |
a35f2679 | 2058 | val |= TRANS_INTERLACED; |
8fb033d7 PZ |
2059 | else |
2060 | val |= TRANS_PROGRESSIVE; | |
2061 | ||
ab9412ba DV |
2062 | I915_WRITE(LPT_TRANSCONF, val); |
2063 | if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100)) | |
937bb610 | 2064 | DRM_ERROR("Failed to enable PCH transcoder\n"); |
8fb033d7 PZ |
2065 | } |
2066 | ||
b8a4f404 PZ |
2067 | static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv, |
2068 | enum pipe pipe) | |
040484af | 2069 | { |
23670b32 DV |
2070 | struct drm_device *dev = dev_priv->dev; |
2071 | uint32_t reg, val; | |
040484af JB |
2072 | |
2073 | /* FDI relies on the transcoder */ | |
2074 | assert_fdi_tx_disabled(dev_priv, pipe); | |
2075 | assert_fdi_rx_disabled(dev_priv, pipe); | |
2076 | ||
291906f1 JB |
2077 | /* Ports must be off as well */ |
2078 | assert_pch_ports_disabled(dev_priv, pipe); | |
2079 | ||
ab9412ba | 2080 | reg = PCH_TRANSCONF(pipe); |
040484af JB |
2081 | val = I915_READ(reg); |
2082 | val &= ~TRANS_ENABLE; | |
2083 | I915_WRITE(reg, val); | |
2084 | /* wait for PCH transcoder off, transcoder state */ | |
2085 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4bb6f1f3 | 2086 | DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe)); |
23670b32 DV |
2087 | |
2088 | if (!HAS_PCH_IBX(dev)) { | |
2089 | /* Workaround: Clear the timing override chicken bit again. */ | |
2090 | reg = TRANS_CHICKEN2(pipe); | |
2091 | val = I915_READ(reg); | |
2092 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; | |
2093 | I915_WRITE(reg, val); | |
2094 | } | |
040484af JB |
2095 | } |
2096 | ||
ab4d966c | 2097 | static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv) |
8fb033d7 | 2098 | { |
8fb033d7 PZ |
2099 | u32 val; |
2100 | ||
ab9412ba | 2101 | val = I915_READ(LPT_TRANSCONF); |
8fb033d7 | 2102 | val &= ~TRANS_ENABLE; |
ab9412ba | 2103 | I915_WRITE(LPT_TRANSCONF, val); |
8fb033d7 | 2104 | /* wait for PCH transcoder off, transcoder state */ |
ab9412ba | 2105 | if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50)) |
8a52fd9f | 2106 | DRM_ERROR("Failed to disable PCH transcoder\n"); |
223a6fdf PZ |
2107 | |
2108 | /* Workaround: clear timing override bit. */ | |
2109 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 2110 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf | 2111 | I915_WRITE(_TRANSA_CHICKEN2, val); |
040484af JB |
2112 | } |
2113 | ||
b24e7179 | 2114 | /** |
309cfea8 | 2115 | * intel_enable_pipe - enable a pipe, asserting requirements |
0372264a | 2116 | * @crtc: crtc responsible for the pipe |
b24e7179 | 2117 | * |
0372264a | 2118 | * Enable @crtc's pipe, making sure that various hardware specific requirements |
b24e7179 | 2119 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. |
b24e7179 | 2120 | */ |
e1fdc473 | 2121 | static void intel_enable_pipe(struct intel_crtc *crtc) |
b24e7179 | 2122 | { |
0372264a PZ |
2123 | struct drm_device *dev = crtc->base.dev; |
2124 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2125 | enum pipe pipe = crtc->pipe; | |
702e7a56 PZ |
2126 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
2127 | pipe); | |
1a240d4d | 2128 | enum pipe pch_transcoder; |
b24e7179 JB |
2129 | int reg; |
2130 | u32 val; | |
2131 | ||
9e2ee2dd VS |
2132 | DRM_DEBUG_KMS("enabling pipe %c\n", pipe_name(pipe)); |
2133 | ||
58c6eaa2 | 2134 | assert_planes_disabled(dev_priv, pipe); |
93ce0ba6 | 2135 | assert_cursor_disabled(dev_priv, pipe); |
58c6eaa2 DV |
2136 | assert_sprites_disabled(dev_priv, pipe); |
2137 | ||
681e5811 | 2138 | if (HAS_PCH_LPT(dev_priv->dev)) |
cc391bbb PZ |
2139 | pch_transcoder = TRANSCODER_A; |
2140 | else | |
2141 | pch_transcoder = pipe; | |
2142 | ||
b24e7179 JB |
2143 | /* |
2144 | * A pipe without a PLL won't actually be able to drive bits from | |
2145 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
2146 | * need the check. | |
2147 | */ | |
50360403 | 2148 | if (HAS_GMCH_DISPLAY(dev_priv->dev)) |
409ee761 | 2149 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI)) |
23538ef1 JN |
2150 | assert_dsi_pll_enabled(dev_priv); |
2151 | else | |
2152 | assert_pll_enabled(dev_priv, pipe); | |
040484af | 2153 | else { |
6e3c9717 | 2154 | if (crtc->config->has_pch_encoder) { |
040484af | 2155 | /* if driving the PCH, we need FDI enabled */ |
cc391bbb | 2156 | assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder); |
1a240d4d DV |
2157 | assert_fdi_tx_pll_enabled(dev_priv, |
2158 | (enum pipe) cpu_transcoder); | |
040484af JB |
2159 | } |
2160 | /* FIXME: assert CPU port conditions for SNB+ */ | |
2161 | } | |
b24e7179 | 2162 | |
702e7a56 | 2163 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 2164 | val = I915_READ(reg); |
7ad25d48 | 2165 | if (val & PIPECONF_ENABLE) { |
b6b5d049 VS |
2166 | WARN_ON(!((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
2167 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))); | |
00d70b15 | 2168 | return; |
7ad25d48 | 2169 | } |
00d70b15 CW |
2170 | |
2171 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
851855d8 | 2172 | POSTING_READ(reg); |
b24e7179 JB |
2173 | } |
2174 | ||
2175 | /** | |
309cfea8 | 2176 | * intel_disable_pipe - disable a pipe, asserting requirements |
575f7ab7 | 2177 | * @crtc: crtc whose pipes is to be disabled |
b24e7179 | 2178 | * |
575f7ab7 VS |
2179 | * Disable the pipe of @crtc, making sure that various hardware |
2180 | * specific requirements are met, if applicable, e.g. plane | |
2181 | * disabled, panel fitter off, etc. | |
b24e7179 JB |
2182 | * |
2183 | * Will wait until the pipe has shut down before returning. | |
2184 | */ | |
575f7ab7 | 2185 | static void intel_disable_pipe(struct intel_crtc *crtc) |
b24e7179 | 2186 | { |
575f7ab7 | 2187 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; |
6e3c9717 | 2188 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
575f7ab7 | 2189 | enum pipe pipe = crtc->pipe; |
b24e7179 JB |
2190 | int reg; |
2191 | u32 val; | |
2192 | ||
9e2ee2dd VS |
2193 | DRM_DEBUG_KMS("disabling pipe %c\n", pipe_name(pipe)); |
2194 | ||
b24e7179 JB |
2195 | /* |
2196 | * Make sure planes won't keep trying to pump pixels to us, | |
2197 | * or we might hang the display. | |
2198 | */ | |
2199 | assert_planes_disabled(dev_priv, pipe); | |
93ce0ba6 | 2200 | assert_cursor_disabled(dev_priv, pipe); |
19332d7a | 2201 | assert_sprites_disabled(dev_priv, pipe); |
b24e7179 | 2202 | |
702e7a56 | 2203 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 2204 | val = I915_READ(reg); |
00d70b15 CW |
2205 | if ((val & PIPECONF_ENABLE) == 0) |
2206 | return; | |
2207 | ||
67adc644 VS |
2208 | /* |
2209 | * Double wide has implications for planes | |
2210 | * so best keep it disabled when not needed. | |
2211 | */ | |
6e3c9717 | 2212 | if (crtc->config->double_wide) |
67adc644 VS |
2213 | val &= ~PIPECONF_DOUBLE_WIDE; |
2214 | ||
2215 | /* Don't disable pipe or pipe PLLs if needed */ | |
b6b5d049 VS |
2216 | if (!(pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) && |
2217 | !(pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
67adc644 VS |
2218 | val &= ~PIPECONF_ENABLE; |
2219 | ||
2220 | I915_WRITE(reg, val); | |
2221 | if ((val & PIPECONF_ENABLE) == 0) | |
2222 | intel_wait_for_pipe_off(crtc); | |
b24e7179 JB |
2223 | } |
2224 | ||
693db184 CW |
2225 | static bool need_vtd_wa(struct drm_device *dev) |
2226 | { | |
2227 | #ifdef CONFIG_INTEL_IOMMU | |
2228 | if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped) | |
2229 | return true; | |
2230 | #endif | |
2231 | return false; | |
2232 | } | |
2233 | ||
50470bb0 | 2234 | unsigned int |
6761dd31 TU |
2235 | intel_tile_height(struct drm_device *dev, uint32_t pixel_format, |
2236 | uint64_t fb_format_modifier) | |
a57ce0b2 | 2237 | { |
6761dd31 TU |
2238 | unsigned int tile_height; |
2239 | uint32_t pixel_bytes; | |
a57ce0b2 | 2240 | |
b5d0e9bf DL |
2241 | switch (fb_format_modifier) { |
2242 | case DRM_FORMAT_MOD_NONE: | |
2243 | tile_height = 1; | |
2244 | break; | |
2245 | case I915_FORMAT_MOD_X_TILED: | |
2246 | tile_height = IS_GEN2(dev) ? 16 : 8; | |
2247 | break; | |
2248 | case I915_FORMAT_MOD_Y_TILED: | |
2249 | tile_height = 32; | |
2250 | break; | |
2251 | case I915_FORMAT_MOD_Yf_TILED: | |
6761dd31 TU |
2252 | pixel_bytes = drm_format_plane_cpp(pixel_format, 0); |
2253 | switch (pixel_bytes) { | |
b5d0e9bf | 2254 | default: |
6761dd31 | 2255 | case 1: |
b5d0e9bf DL |
2256 | tile_height = 64; |
2257 | break; | |
6761dd31 TU |
2258 | case 2: |
2259 | case 4: | |
b5d0e9bf DL |
2260 | tile_height = 32; |
2261 | break; | |
6761dd31 | 2262 | case 8: |
b5d0e9bf DL |
2263 | tile_height = 16; |
2264 | break; | |
6761dd31 | 2265 | case 16: |
b5d0e9bf DL |
2266 | WARN_ONCE(1, |
2267 | "128-bit pixels are not supported for display!"); | |
2268 | tile_height = 16; | |
2269 | break; | |
2270 | } | |
2271 | break; | |
2272 | default: | |
2273 | MISSING_CASE(fb_format_modifier); | |
2274 | tile_height = 1; | |
2275 | break; | |
2276 | } | |
091df6cb | 2277 | |
6761dd31 TU |
2278 | return tile_height; |
2279 | } | |
2280 | ||
2281 | unsigned int | |
2282 | intel_fb_align_height(struct drm_device *dev, unsigned int height, | |
2283 | uint32_t pixel_format, uint64_t fb_format_modifier) | |
2284 | { | |
2285 | return ALIGN(height, intel_tile_height(dev, pixel_format, | |
2286 | fb_format_modifier)); | |
a57ce0b2 JB |
2287 | } |
2288 | ||
f64b98cd TU |
2289 | static int |
2290 | intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb, | |
2291 | const struct drm_plane_state *plane_state) | |
2292 | { | |
50470bb0 | 2293 | struct intel_rotation_info *info = &view->rotation_info; |
84fe03f7 | 2294 | unsigned int tile_height, tile_pitch; |
50470bb0 | 2295 | |
f64b98cd TU |
2296 | *view = i915_ggtt_view_normal; |
2297 | ||
50470bb0 TU |
2298 | if (!plane_state) |
2299 | return 0; | |
2300 | ||
121920fa | 2301 | if (!intel_rotation_90_or_270(plane_state->rotation)) |
50470bb0 TU |
2302 | return 0; |
2303 | ||
9abc4648 | 2304 | *view = i915_ggtt_view_rotated; |
50470bb0 TU |
2305 | |
2306 | info->height = fb->height; | |
2307 | info->pixel_format = fb->pixel_format; | |
2308 | info->pitch = fb->pitches[0]; | |
2309 | info->fb_modifier = fb->modifier[0]; | |
2310 | ||
84fe03f7 TU |
2311 | tile_height = intel_tile_height(fb->dev, fb->pixel_format, |
2312 | fb->modifier[0]); | |
2313 | tile_pitch = PAGE_SIZE / tile_height; | |
2314 | info->width_pages = DIV_ROUND_UP(fb->pitches[0], tile_pitch); | |
2315 | info->height_pages = DIV_ROUND_UP(fb->height, tile_height); | |
2316 | info->size = info->width_pages * info->height_pages * PAGE_SIZE; | |
2317 | ||
f64b98cd TU |
2318 | return 0; |
2319 | } | |
2320 | ||
4e9a86b6 VS |
2321 | static unsigned int intel_linear_alignment(struct drm_i915_private *dev_priv) |
2322 | { | |
2323 | if (INTEL_INFO(dev_priv)->gen >= 9) | |
2324 | return 256 * 1024; | |
985b8bb4 VS |
2325 | else if (IS_BROADWATER(dev_priv) || IS_CRESTLINE(dev_priv) || |
2326 | IS_VALLEYVIEW(dev_priv)) | |
4e9a86b6 VS |
2327 | return 128 * 1024; |
2328 | else if (INTEL_INFO(dev_priv)->gen >= 4) | |
2329 | return 4 * 1024; | |
2330 | else | |
44c5905e | 2331 | return 0; |
4e9a86b6 VS |
2332 | } |
2333 | ||
127bd2ac | 2334 | int |
850c4cdc TU |
2335 | intel_pin_and_fence_fb_obj(struct drm_plane *plane, |
2336 | struct drm_framebuffer *fb, | |
82bc3b2d | 2337 | const struct drm_plane_state *plane_state, |
91af127f JH |
2338 | struct intel_engine_cs *pipelined, |
2339 | struct drm_i915_gem_request **pipelined_request) | |
6b95a207 | 2340 | { |
850c4cdc | 2341 | struct drm_device *dev = fb->dev; |
ce453d81 | 2342 | struct drm_i915_private *dev_priv = dev->dev_private; |
850c4cdc | 2343 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
f64b98cd | 2344 | struct i915_ggtt_view view; |
6b95a207 KH |
2345 | u32 alignment; |
2346 | int ret; | |
2347 | ||
ebcdd39e MR |
2348 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
2349 | ||
7b911adc TU |
2350 | switch (fb->modifier[0]) { |
2351 | case DRM_FORMAT_MOD_NONE: | |
4e9a86b6 | 2352 | alignment = intel_linear_alignment(dev_priv); |
6b95a207 | 2353 | break; |
7b911adc | 2354 | case I915_FORMAT_MOD_X_TILED: |
1fada4cc DL |
2355 | if (INTEL_INFO(dev)->gen >= 9) |
2356 | alignment = 256 * 1024; | |
2357 | else { | |
2358 | /* pin() will align the object as required by fence */ | |
2359 | alignment = 0; | |
2360 | } | |
6b95a207 | 2361 | break; |
7b911adc | 2362 | case I915_FORMAT_MOD_Y_TILED: |
1327b9a1 DL |
2363 | case I915_FORMAT_MOD_Yf_TILED: |
2364 | if (WARN_ONCE(INTEL_INFO(dev)->gen < 9, | |
2365 | "Y tiling bo slipped through, driver bug!\n")) | |
2366 | return -EINVAL; | |
2367 | alignment = 1 * 1024 * 1024; | |
2368 | break; | |
6b95a207 | 2369 | default: |
7b911adc TU |
2370 | MISSING_CASE(fb->modifier[0]); |
2371 | return -EINVAL; | |
6b95a207 KH |
2372 | } |
2373 | ||
f64b98cd TU |
2374 | ret = intel_fill_fb_ggtt_view(&view, fb, plane_state); |
2375 | if (ret) | |
2376 | return ret; | |
2377 | ||
693db184 CW |
2378 | /* Note that the w/a also requires 64 PTE of padding following the |
2379 | * bo. We currently fill all unused PTE with the shadow page and so | |
2380 | * we should always have valid PTE following the scanout preventing | |
2381 | * the VT-d warning. | |
2382 | */ | |
2383 | if (need_vtd_wa(dev) && alignment < 256 * 1024) | |
2384 | alignment = 256 * 1024; | |
2385 | ||
d6dd6843 PZ |
2386 | /* |
2387 | * Global gtt pte registers are special registers which actually forward | |
2388 | * writes to a chunk of system memory. Which means that there is no risk | |
2389 | * that the register values disappear as soon as we call | |
2390 | * intel_runtime_pm_put(), so it is correct to wrap only the | |
2391 | * pin/unpin/fence and not more. | |
2392 | */ | |
2393 | intel_runtime_pm_get(dev_priv); | |
2394 | ||
ce453d81 | 2395 | dev_priv->mm.interruptible = false; |
e6617330 | 2396 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined, |
91af127f | 2397 | pipelined_request, &view); |
48b956c5 | 2398 | if (ret) |
ce453d81 | 2399 | goto err_interruptible; |
6b95a207 KH |
2400 | |
2401 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
2402 | * fence, whereas 965+ only requires a fence if using | |
2403 | * framebuffer compression. For simplicity, we always install | |
2404 | * a fence as the cost is not that onerous. | |
2405 | */ | |
06d98131 | 2406 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
2407 | if (ret) |
2408 | goto err_unpin; | |
1690e1eb | 2409 | |
9a5a53b3 | 2410 | i915_gem_object_pin_fence(obj); |
6b95a207 | 2411 | |
ce453d81 | 2412 | dev_priv->mm.interruptible = true; |
d6dd6843 | 2413 | intel_runtime_pm_put(dev_priv); |
6b95a207 | 2414 | return 0; |
48b956c5 CW |
2415 | |
2416 | err_unpin: | |
f64b98cd | 2417 | i915_gem_object_unpin_from_display_plane(obj, &view); |
ce453d81 CW |
2418 | err_interruptible: |
2419 | dev_priv->mm.interruptible = true; | |
d6dd6843 | 2420 | intel_runtime_pm_put(dev_priv); |
48b956c5 | 2421 | return ret; |
6b95a207 KH |
2422 | } |
2423 | ||
82bc3b2d TU |
2424 | static void intel_unpin_fb_obj(struct drm_framebuffer *fb, |
2425 | const struct drm_plane_state *plane_state) | |
1690e1eb | 2426 | { |
82bc3b2d | 2427 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
f64b98cd TU |
2428 | struct i915_ggtt_view view; |
2429 | int ret; | |
82bc3b2d | 2430 | |
ebcdd39e MR |
2431 | WARN_ON(!mutex_is_locked(&obj->base.dev->struct_mutex)); |
2432 | ||
f64b98cd TU |
2433 | ret = intel_fill_fb_ggtt_view(&view, fb, plane_state); |
2434 | WARN_ONCE(ret, "Couldn't get view from plane state!"); | |
2435 | ||
1690e1eb | 2436 | i915_gem_object_unpin_fence(obj); |
f64b98cd | 2437 | i915_gem_object_unpin_from_display_plane(obj, &view); |
1690e1eb CW |
2438 | } |
2439 | ||
c2c75131 DV |
2440 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
2441 | * is assumed to be a power-of-two. */ | |
4e9a86b6 VS |
2442 | unsigned long intel_gen4_compute_page_offset(struct drm_i915_private *dev_priv, |
2443 | int *x, int *y, | |
bc752862 CW |
2444 | unsigned int tiling_mode, |
2445 | unsigned int cpp, | |
2446 | unsigned int pitch) | |
c2c75131 | 2447 | { |
bc752862 CW |
2448 | if (tiling_mode != I915_TILING_NONE) { |
2449 | unsigned int tile_rows, tiles; | |
c2c75131 | 2450 | |
bc752862 CW |
2451 | tile_rows = *y / 8; |
2452 | *y %= 8; | |
c2c75131 | 2453 | |
bc752862 CW |
2454 | tiles = *x / (512/cpp); |
2455 | *x %= 512/cpp; | |
2456 | ||
2457 | return tile_rows * pitch * 8 + tiles * 4096; | |
2458 | } else { | |
4e9a86b6 | 2459 | unsigned int alignment = intel_linear_alignment(dev_priv) - 1; |
bc752862 CW |
2460 | unsigned int offset; |
2461 | ||
2462 | offset = *y * pitch + *x * cpp; | |
4e9a86b6 VS |
2463 | *y = (offset & alignment) / pitch; |
2464 | *x = ((offset & alignment) - *y * pitch) / cpp; | |
2465 | return offset & ~alignment; | |
bc752862 | 2466 | } |
c2c75131 DV |
2467 | } |
2468 | ||
b35d63fa | 2469 | static int i9xx_format_to_fourcc(int format) |
46f297fb JB |
2470 | { |
2471 | switch (format) { | |
2472 | case DISPPLANE_8BPP: | |
2473 | return DRM_FORMAT_C8; | |
2474 | case DISPPLANE_BGRX555: | |
2475 | return DRM_FORMAT_XRGB1555; | |
2476 | case DISPPLANE_BGRX565: | |
2477 | return DRM_FORMAT_RGB565; | |
2478 | default: | |
2479 | case DISPPLANE_BGRX888: | |
2480 | return DRM_FORMAT_XRGB8888; | |
2481 | case DISPPLANE_RGBX888: | |
2482 | return DRM_FORMAT_XBGR8888; | |
2483 | case DISPPLANE_BGRX101010: | |
2484 | return DRM_FORMAT_XRGB2101010; | |
2485 | case DISPPLANE_RGBX101010: | |
2486 | return DRM_FORMAT_XBGR2101010; | |
2487 | } | |
2488 | } | |
2489 | ||
bc8d7dff DL |
2490 | static int skl_format_to_fourcc(int format, bool rgb_order, bool alpha) |
2491 | { | |
2492 | switch (format) { | |
2493 | case PLANE_CTL_FORMAT_RGB_565: | |
2494 | return DRM_FORMAT_RGB565; | |
2495 | default: | |
2496 | case PLANE_CTL_FORMAT_XRGB_8888: | |
2497 | if (rgb_order) { | |
2498 | if (alpha) | |
2499 | return DRM_FORMAT_ABGR8888; | |
2500 | else | |
2501 | return DRM_FORMAT_XBGR8888; | |
2502 | } else { | |
2503 | if (alpha) | |
2504 | return DRM_FORMAT_ARGB8888; | |
2505 | else | |
2506 | return DRM_FORMAT_XRGB8888; | |
2507 | } | |
2508 | case PLANE_CTL_FORMAT_XRGB_2101010: | |
2509 | if (rgb_order) | |
2510 | return DRM_FORMAT_XBGR2101010; | |
2511 | else | |
2512 | return DRM_FORMAT_XRGB2101010; | |
2513 | } | |
2514 | } | |
2515 | ||
5724dbd1 | 2516 | static bool |
f6936e29 DV |
2517 | intel_alloc_initial_plane_obj(struct intel_crtc *crtc, |
2518 | struct intel_initial_plane_config *plane_config) | |
46f297fb JB |
2519 | { |
2520 | struct drm_device *dev = crtc->base.dev; | |
2521 | struct drm_i915_gem_object *obj = NULL; | |
2522 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; | |
2d14030b | 2523 | struct drm_framebuffer *fb = &plane_config->fb->base; |
f37b5c2b DV |
2524 | u32 base_aligned = round_down(plane_config->base, PAGE_SIZE); |
2525 | u32 size_aligned = round_up(plane_config->base + plane_config->size, | |
2526 | PAGE_SIZE); | |
2527 | ||
2528 | size_aligned -= base_aligned; | |
46f297fb | 2529 | |
ff2652ea CW |
2530 | if (plane_config->size == 0) |
2531 | return false; | |
2532 | ||
f37b5c2b DV |
2533 | obj = i915_gem_object_create_stolen_for_preallocated(dev, |
2534 | base_aligned, | |
2535 | base_aligned, | |
2536 | size_aligned); | |
46f297fb | 2537 | if (!obj) |
484b41dd | 2538 | return false; |
46f297fb | 2539 | |
49af449b DL |
2540 | obj->tiling_mode = plane_config->tiling; |
2541 | if (obj->tiling_mode == I915_TILING_X) | |
6bf129df | 2542 | obj->stride = fb->pitches[0]; |
46f297fb | 2543 | |
6bf129df DL |
2544 | mode_cmd.pixel_format = fb->pixel_format; |
2545 | mode_cmd.width = fb->width; | |
2546 | mode_cmd.height = fb->height; | |
2547 | mode_cmd.pitches[0] = fb->pitches[0]; | |
18c5247e DV |
2548 | mode_cmd.modifier[0] = fb->modifier[0]; |
2549 | mode_cmd.flags = DRM_MODE_FB_MODIFIERS; | |
46f297fb JB |
2550 | |
2551 | mutex_lock(&dev->struct_mutex); | |
6bf129df | 2552 | if (intel_framebuffer_init(dev, to_intel_framebuffer(fb), |
484b41dd | 2553 | &mode_cmd, obj)) { |
46f297fb JB |
2554 | DRM_DEBUG_KMS("intel fb init failed\n"); |
2555 | goto out_unref_obj; | |
2556 | } | |
46f297fb | 2557 | mutex_unlock(&dev->struct_mutex); |
484b41dd | 2558 | |
f6936e29 | 2559 | DRM_DEBUG_KMS("initial plane fb obj %p\n", obj); |
484b41dd | 2560 | return true; |
46f297fb JB |
2561 | |
2562 | out_unref_obj: | |
2563 | drm_gem_object_unreference(&obj->base); | |
2564 | mutex_unlock(&dev->struct_mutex); | |
484b41dd JB |
2565 | return false; |
2566 | } | |
2567 | ||
afd65eb4 MR |
2568 | /* Update plane->state->fb to match plane->fb after driver-internal updates */ |
2569 | static void | |
2570 | update_state_fb(struct drm_plane *plane) | |
2571 | { | |
2572 | if (plane->fb == plane->state->fb) | |
2573 | return; | |
2574 | ||
2575 | if (plane->state->fb) | |
2576 | drm_framebuffer_unreference(plane->state->fb); | |
2577 | plane->state->fb = plane->fb; | |
2578 | if (plane->state->fb) | |
2579 | drm_framebuffer_reference(plane->state->fb); | |
2580 | } | |
2581 | ||
5724dbd1 | 2582 | static void |
f6936e29 DV |
2583 | intel_find_initial_plane_obj(struct intel_crtc *intel_crtc, |
2584 | struct intel_initial_plane_config *plane_config) | |
484b41dd JB |
2585 | { |
2586 | struct drm_device *dev = intel_crtc->base.dev; | |
d9ceb816 | 2587 | struct drm_i915_private *dev_priv = dev->dev_private; |
484b41dd JB |
2588 | struct drm_crtc *c; |
2589 | struct intel_crtc *i; | |
2ff8fde1 | 2590 | struct drm_i915_gem_object *obj; |
88595ac9 | 2591 | struct drm_plane *primary = intel_crtc->base.primary; |
be5651f2 | 2592 | struct drm_plane_state *plane_state = primary->state; |
88595ac9 | 2593 | struct drm_framebuffer *fb; |
484b41dd | 2594 | |
2d14030b | 2595 | if (!plane_config->fb) |
484b41dd JB |
2596 | return; |
2597 | ||
f6936e29 | 2598 | if (intel_alloc_initial_plane_obj(intel_crtc, plane_config)) { |
88595ac9 DV |
2599 | fb = &plane_config->fb->base; |
2600 | goto valid_fb; | |
f55548b5 | 2601 | } |
484b41dd | 2602 | |
2d14030b | 2603 | kfree(plane_config->fb); |
484b41dd JB |
2604 | |
2605 | /* | |
2606 | * Failed to alloc the obj, check to see if we should share | |
2607 | * an fb with another CRTC instead | |
2608 | */ | |
70e1e0ec | 2609 | for_each_crtc(dev, c) { |
484b41dd JB |
2610 | i = to_intel_crtc(c); |
2611 | ||
2612 | if (c == &intel_crtc->base) | |
2613 | continue; | |
2614 | ||
2ff8fde1 MR |
2615 | if (!i->active) |
2616 | continue; | |
2617 | ||
88595ac9 DV |
2618 | fb = c->primary->fb; |
2619 | if (!fb) | |
484b41dd JB |
2620 | continue; |
2621 | ||
88595ac9 | 2622 | obj = intel_fb_obj(fb); |
2ff8fde1 | 2623 | if (i915_gem_obj_ggtt_offset(obj) == plane_config->base) { |
88595ac9 DV |
2624 | drm_framebuffer_reference(fb); |
2625 | goto valid_fb; | |
484b41dd JB |
2626 | } |
2627 | } | |
88595ac9 DV |
2628 | |
2629 | return; | |
2630 | ||
2631 | valid_fb: | |
be5651f2 ML |
2632 | plane_state->src_x = plane_state->src_y = 0; |
2633 | plane_state->src_w = fb->width << 16; | |
2634 | plane_state->src_h = fb->height << 16; | |
2635 | ||
2636 | plane_state->crtc_x = plane_state->src_y = 0; | |
2637 | plane_state->crtc_w = fb->width; | |
2638 | plane_state->crtc_h = fb->height; | |
2639 | ||
88595ac9 DV |
2640 | obj = intel_fb_obj(fb); |
2641 | if (obj->tiling_mode != I915_TILING_NONE) | |
2642 | dev_priv->preserve_bios_swizzle = true; | |
2643 | ||
be5651f2 ML |
2644 | drm_framebuffer_reference(fb); |
2645 | primary->fb = primary->state->fb = fb; | |
36750f28 | 2646 | primary->crtc = primary->state->crtc = &intel_crtc->base; |
36750f28 | 2647 | intel_crtc->base.state->plane_mask |= (1 << drm_plane_index(primary)); |
a9ff8714 | 2648 | obj->frontbuffer_bits |= to_intel_plane(primary)->frontbuffer_bit; |
46f297fb JB |
2649 | } |
2650 | ||
29b9bde6 DV |
2651 | static void i9xx_update_primary_plane(struct drm_crtc *crtc, |
2652 | struct drm_framebuffer *fb, | |
2653 | int x, int y) | |
81255565 JB |
2654 | { |
2655 | struct drm_device *dev = crtc->dev; | |
2656 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2657 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
b70709a6 ML |
2658 | struct drm_plane *primary = crtc->primary; |
2659 | bool visible = to_intel_plane_state(primary->state)->visible; | |
c9ba6fad | 2660 | struct drm_i915_gem_object *obj; |
81255565 | 2661 | int plane = intel_crtc->plane; |
e506a0c6 | 2662 | unsigned long linear_offset; |
81255565 | 2663 | u32 dspcntr; |
f45651ba | 2664 | u32 reg = DSPCNTR(plane); |
48404c1e | 2665 | int pixel_size; |
f45651ba | 2666 | |
b70709a6 | 2667 | if (!visible || !fb) { |
fdd508a6 VS |
2668 | I915_WRITE(reg, 0); |
2669 | if (INTEL_INFO(dev)->gen >= 4) | |
2670 | I915_WRITE(DSPSURF(plane), 0); | |
2671 | else | |
2672 | I915_WRITE(DSPADDR(plane), 0); | |
2673 | POSTING_READ(reg); | |
2674 | return; | |
2675 | } | |
2676 | ||
c9ba6fad VS |
2677 | obj = intel_fb_obj(fb); |
2678 | if (WARN_ON(obj == NULL)) | |
2679 | return; | |
2680 | ||
2681 | pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); | |
2682 | ||
f45651ba VS |
2683 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
2684 | ||
fdd508a6 | 2685 | dspcntr |= DISPLAY_PLANE_ENABLE; |
f45651ba VS |
2686 | |
2687 | if (INTEL_INFO(dev)->gen < 4) { | |
2688 | if (intel_crtc->pipe == PIPE_B) | |
2689 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
2690 | ||
2691 | /* pipesrc and dspsize control the size that is scaled from, | |
2692 | * which should always be the user's requested size. | |
2693 | */ | |
2694 | I915_WRITE(DSPSIZE(plane), | |
6e3c9717 ACO |
2695 | ((intel_crtc->config->pipe_src_h - 1) << 16) | |
2696 | (intel_crtc->config->pipe_src_w - 1)); | |
f45651ba | 2697 | I915_WRITE(DSPPOS(plane), 0); |
c14b0485 VS |
2698 | } else if (IS_CHERRYVIEW(dev) && plane == PLANE_B) { |
2699 | I915_WRITE(PRIMSIZE(plane), | |
6e3c9717 ACO |
2700 | ((intel_crtc->config->pipe_src_h - 1) << 16) | |
2701 | (intel_crtc->config->pipe_src_w - 1)); | |
c14b0485 VS |
2702 | I915_WRITE(PRIMPOS(plane), 0); |
2703 | I915_WRITE(PRIMCNSTALPHA(plane), 0); | |
f45651ba | 2704 | } |
81255565 | 2705 | |
57779d06 VS |
2706 | switch (fb->pixel_format) { |
2707 | case DRM_FORMAT_C8: | |
81255565 JB |
2708 | dspcntr |= DISPPLANE_8BPP; |
2709 | break; | |
57779d06 | 2710 | case DRM_FORMAT_XRGB1555: |
57779d06 | 2711 | dspcntr |= DISPPLANE_BGRX555; |
81255565 | 2712 | break; |
57779d06 VS |
2713 | case DRM_FORMAT_RGB565: |
2714 | dspcntr |= DISPPLANE_BGRX565; | |
2715 | break; | |
2716 | case DRM_FORMAT_XRGB8888: | |
57779d06 VS |
2717 | dspcntr |= DISPPLANE_BGRX888; |
2718 | break; | |
2719 | case DRM_FORMAT_XBGR8888: | |
57779d06 VS |
2720 | dspcntr |= DISPPLANE_RGBX888; |
2721 | break; | |
2722 | case DRM_FORMAT_XRGB2101010: | |
57779d06 VS |
2723 | dspcntr |= DISPPLANE_BGRX101010; |
2724 | break; | |
2725 | case DRM_FORMAT_XBGR2101010: | |
57779d06 | 2726 | dspcntr |= DISPPLANE_RGBX101010; |
81255565 JB |
2727 | break; |
2728 | default: | |
baba133a | 2729 | BUG(); |
81255565 | 2730 | } |
57779d06 | 2731 | |
f45651ba VS |
2732 | if (INTEL_INFO(dev)->gen >= 4 && |
2733 | obj->tiling_mode != I915_TILING_NONE) | |
2734 | dspcntr |= DISPPLANE_TILED; | |
81255565 | 2735 | |
de1aa629 VS |
2736 | if (IS_G4X(dev)) |
2737 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2738 | ||
b9897127 | 2739 | linear_offset = y * fb->pitches[0] + x * pixel_size; |
81255565 | 2740 | |
c2c75131 DV |
2741 | if (INTEL_INFO(dev)->gen >= 4) { |
2742 | intel_crtc->dspaddr_offset = | |
4e9a86b6 VS |
2743 | intel_gen4_compute_page_offset(dev_priv, |
2744 | &x, &y, obj->tiling_mode, | |
b9897127 | 2745 | pixel_size, |
bc752862 | 2746 | fb->pitches[0]); |
c2c75131 DV |
2747 | linear_offset -= intel_crtc->dspaddr_offset; |
2748 | } else { | |
e506a0c6 | 2749 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 2750 | } |
e506a0c6 | 2751 | |
8e7d688b | 2752 | if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180)) { |
48404c1e SJ |
2753 | dspcntr |= DISPPLANE_ROTATE_180; |
2754 | ||
6e3c9717 ACO |
2755 | x += (intel_crtc->config->pipe_src_w - 1); |
2756 | y += (intel_crtc->config->pipe_src_h - 1); | |
48404c1e SJ |
2757 | |
2758 | /* Finding the last pixel of the last line of the display | |
2759 | data and adding to linear_offset*/ | |
2760 | linear_offset += | |
6e3c9717 ACO |
2761 | (intel_crtc->config->pipe_src_h - 1) * fb->pitches[0] + |
2762 | (intel_crtc->config->pipe_src_w - 1) * pixel_size; | |
48404c1e SJ |
2763 | } |
2764 | ||
2765 | I915_WRITE(reg, dspcntr); | |
2766 | ||
01f2c773 | 2767 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 2768 | if (INTEL_INFO(dev)->gen >= 4) { |
85ba7b7d DV |
2769 | I915_WRITE(DSPSURF(plane), |
2770 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset); | |
5eddb70b | 2771 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2772 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 2773 | } else |
f343c5f6 | 2774 | I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset); |
5eddb70b | 2775 | POSTING_READ(reg); |
17638cd6 JB |
2776 | } |
2777 | ||
29b9bde6 DV |
2778 | static void ironlake_update_primary_plane(struct drm_crtc *crtc, |
2779 | struct drm_framebuffer *fb, | |
2780 | int x, int y) | |
17638cd6 JB |
2781 | { |
2782 | struct drm_device *dev = crtc->dev; | |
2783 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2784 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
b70709a6 ML |
2785 | struct drm_plane *primary = crtc->primary; |
2786 | bool visible = to_intel_plane_state(primary->state)->visible; | |
c9ba6fad | 2787 | struct drm_i915_gem_object *obj; |
17638cd6 | 2788 | int plane = intel_crtc->plane; |
e506a0c6 | 2789 | unsigned long linear_offset; |
17638cd6 | 2790 | u32 dspcntr; |
f45651ba | 2791 | u32 reg = DSPCNTR(plane); |
48404c1e | 2792 | int pixel_size; |
f45651ba | 2793 | |
b70709a6 | 2794 | if (!visible || !fb) { |
fdd508a6 VS |
2795 | I915_WRITE(reg, 0); |
2796 | I915_WRITE(DSPSURF(plane), 0); | |
2797 | POSTING_READ(reg); | |
2798 | return; | |
2799 | } | |
2800 | ||
c9ba6fad VS |
2801 | obj = intel_fb_obj(fb); |
2802 | if (WARN_ON(obj == NULL)) | |
2803 | return; | |
2804 | ||
2805 | pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); | |
2806 | ||
f45651ba VS |
2807 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
2808 | ||
fdd508a6 | 2809 | dspcntr |= DISPLAY_PLANE_ENABLE; |
f45651ba VS |
2810 | |
2811 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) | |
2812 | dspcntr |= DISPPLANE_PIPE_CSC_ENABLE; | |
17638cd6 | 2813 | |
57779d06 VS |
2814 | switch (fb->pixel_format) { |
2815 | case DRM_FORMAT_C8: | |
17638cd6 JB |
2816 | dspcntr |= DISPPLANE_8BPP; |
2817 | break; | |
57779d06 VS |
2818 | case DRM_FORMAT_RGB565: |
2819 | dspcntr |= DISPPLANE_BGRX565; | |
17638cd6 | 2820 | break; |
57779d06 | 2821 | case DRM_FORMAT_XRGB8888: |
57779d06 VS |
2822 | dspcntr |= DISPPLANE_BGRX888; |
2823 | break; | |
2824 | case DRM_FORMAT_XBGR8888: | |
57779d06 VS |
2825 | dspcntr |= DISPPLANE_RGBX888; |
2826 | break; | |
2827 | case DRM_FORMAT_XRGB2101010: | |
57779d06 VS |
2828 | dspcntr |= DISPPLANE_BGRX101010; |
2829 | break; | |
2830 | case DRM_FORMAT_XBGR2101010: | |
57779d06 | 2831 | dspcntr |= DISPPLANE_RGBX101010; |
17638cd6 JB |
2832 | break; |
2833 | default: | |
baba133a | 2834 | BUG(); |
17638cd6 JB |
2835 | } |
2836 | ||
2837 | if (obj->tiling_mode != I915_TILING_NONE) | |
2838 | dspcntr |= DISPPLANE_TILED; | |
17638cd6 | 2839 | |
f45651ba | 2840 | if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) |
1f5d76db | 2841 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; |
17638cd6 | 2842 | |
b9897127 | 2843 | linear_offset = y * fb->pitches[0] + x * pixel_size; |
c2c75131 | 2844 | intel_crtc->dspaddr_offset = |
4e9a86b6 VS |
2845 | intel_gen4_compute_page_offset(dev_priv, |
2846 | &x, &y, obj->tiling_mode, | |
b9897127 | 2847 | pixel_size, |
bc752862 | 2848 | fb->pitches[0]); |
c2c75131 | 2849 | linear_offset -= intel_crtc->dspaddr_offset; |
8e7d688b | 2850 | if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180)) { |
48404c1e SJ |
2851 | dspcntr |= DISPPLANE_ROTATE_180; |
2852 | ||
2853 | if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) { | |
6e3c9717 ACO |
2854 | x += (intel_crtc->config->pipe_src_w - 1); |
2855 | y += (intel_crtc->config->pipe_src_h - 1); | |
48404c1e SJ |
2856 | |
2857 | /* Finding the last pixel of the last line of the display | |
2858 | data and adding to linear_offset*/ | |
2859 | linear_offset += | |
6e3c9717 ACO |
2860 | (intel_crtc->config->pipe_src_h - 1) * fb->pitches[0] + |
2861 | (intel_crtc->config->pipe_src_w - 1) * pixel_size; | |
48404c1e SJ |
2862 | } |
2863 | } | |
2864 | ||
2865 | I915_WRITE(reg, dspcntr); | |
17638cd6 | 2866 | |
01f2c773 | 2867 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
85ba7b7d DV |
2868 | I915_WRITE(DSPSURF(plane), |
2869 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset); | |
b3dc685e | 2870 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
bc1c91eb DL |
2871 | I915_WRITE(DSPOFFSET(plane), (y << 16) | x); |
2872 | } else { | |
2873 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); | |
2874 | I915_WRITE(DSPLINOFF(plane), linear_offset); | |
2875 | } | |
17638cd6 | 2876 | POSTING_READ(reg); |
17638cd6 JB |
2877 | } |
2878 | ||
b321803d DL |
2879 | u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier, |
2880 | uint32_t pixel_format) | |
2881 | { | |
2882 | u32 bits_per_pixel = drm_format_plane_cpp(pixel_format, 0) * 8; | |
2883 | ||
2884 | /* | |
2885 | * The stride is either expressed as a multiple of 64 bytes | |
2886 | * chunks for linear buffers or in number of tiles for tiled | |
2887 | * buffers. | |
2888 | */ | |
2889 | switch (fb_modifier) { | |
2890 | case DRM_FORMAT_MOD_NONE: | |
2891 | return 64; | |
2892 | case I915_FORMAT_MOD_X_TILED: | |
2893 | if (INTEL_INFO(dev)->gen == 2) | |
2894 | return 128; | |
2895 | return 512; | |
2896 | case I915_FORMAT_MOD_Y_TILED: | |
2897 | /* No need to check for old gens and Y tiling since this is | |
2898 | * about the display engine and those will be blocked before | |
2899 | * we get here. | |
2900 | */ | |
2901 | return 128; | |
2902 | case I915_FORMAT_MOD_Yf_TILED: | |
2903 | if (bits_per_pixel == 8) | |
2904 | return 64; | |
2905 | else | |
2906 | return 128; | |
2907 | default: | |
2908 | MISSING_CASE(fb_modifier); | |
2909 | return 64; | |
2910 | } | |
2911 | } | |
2912 | ||
121920fa TU |
2913 | unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane, |
2914 | struct drm_i915_gem_object *obj) | |
2915 | { | |
9abc4648 | 2916 | const struct i915_ggtt_view *view = &i915_ggtt_view_normal; |
121920fa TU |
2917 | |
2918 | if (intel_rotation_90_or_270(intel_plane->base.state->rotation)) | |
9abc4648 | 2919 | view = &i915_ggtt_view_rotated; |
121920fa TU |
2920 | |
2921 | return i915_gem_obj_ggtt_offset_view(obj, view); | |
2922 | } | |
2923 | ||
e435d6e5 ML |
2924 | static void skl_detach_scaler(struct intel_crtc *intel_crtc, int id) |
2925 | { | |
2926 | struct drm_device *dev = intel_crtc->base.dev; | |
2927 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2928 | ||
2929 | I915_WRITE(SKL_PS_CTRL(intel_crtc->pipe, id), 0); | |
2930 | I915_WRITE(SKL_PS_WIN_POS(intel_crtc->pipe, id), 0); | |
2931 | I915_WRITE(SKL_PS_WIN_SZ(intel_crtc->pipe, id), 0); | |
2932 | DRM_DEBUG_KMS("CRTC:%d Disabled scaler id %u.%u\n", | |
2933 | intel_crtc->base.base.id, intel_crtc->pipe, id); | |
2934 | } | |
2935 | ||
a1b2278e CK |
2936 | /* |
2937 | * This function detaches (aka. unbinds) unused scalers in hardware | |
2938 | */ | |
0583236e | 2939 | static void skl_detach_scalers(struct intel_crtc *intel_crtc) |
a1b2278e | 2940 | { |
a1b2278e CK |
2941 | struct intel_crtc_scaler_state *scaler_state; |
2942 | int i; | |
2943 | ||
a1b2278e CK |
2944 | scaler_state = &intel_crtc->config->scaler_state; |
2945 | ||
2946 | /* loop through and disable scalers that aren't in use */ | |
2947 | for (i = 0; i < intel_crtc->num_scalers; i++) { | |
e435d6e5 ML |
2948 | if (!scaler_state->scalers[i].in_use) |
2949 | skl_detach_scaler(intel_crtc, i); | |
a1b2278e CK |
2950 | } |
2951 | } | |
2952 | ||
6156a456 | 2953 | u32 skl_plane_ctl_format(uint32_t pixel_format) |
70d21f0e | 2954 | { |
6156a456 | 2955 | switch (pixel_format) { |
d161cf7a | 2956 | case DRM_FORMAT_C8: |
c34ce3d1 | 2957 | return PLANE_CTL_FORMAT_INDEXED; |
70d21f0e | 2958 | case DRM_FORMAT_RGB565: |
c34ce3d1 | 2959 | return PLANE_CTL_FORMAT_RGB_565; |
70d21f0e | 2960 | case DRM_FORMAT_XBGR8888: |
c34ce3d1 | 2961 | return PLANE_CTL_FORMAT_XRGB_8888 | PLANE_CTL_ORDER_RGBX; |
6156a456 | 2962 | case DRM_FORMAT_XRGB8888: |
c34ce3d1 | 2963 | return PLANE_CTL_FORMAT_XRGB_8888; |
6156a456 CK |
2964 | /* |
2965 | * XXX: For ARBG/ABGR formats we default to expecting scanout buffers | |
2966 | * to be already pre-multiplied. We need to add a knob (or a different | |
2967 | * DRM_FORMAT) for user-space to configure that. | |
2968 | */ | |
f75fb42a | 2969 | case DRM_FORMAT_ABGR8888: |
c34ce3d1 | 2970 | return PLANE_CTL_FORMAT_XRGB_8888 | PLANE_CTL_ORDER_RGBX | |
6156a456 | 2971 | PLANE_CTL_ALPHA_SW_PREMULTIPLY; |
6156a456 | 2972 | case DRM_FORMAT_ARGB8888: |
c34ce3d1 | 2973 | return PLANE_CTL_FORMAT_XRGB_8888 | |
6156a456 | 2974 | PLANE_CTL_ALPHA_SW_PREMULTIPLY; |
70d21f0e | 2975 | case DRM_FORMAT_XRGB2101010: |
c34ce3d1 | 2976 | return PLANE_CTL_FORMAT_XRGB_2101010; |
70d21f0e | 2977 | case DRM_FORMAT_XBGR2101010: |
c34ce3d1 | 2978 | return PLANE_CTL_ORDER_RGBX | PLANE_CTL_FORMAT_XRGB_2101010; |
6156a456 | 2979 | case DRM_FORMAT_YUYV: |
c34ce3d1 | 2980 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_YUYV; |
6156a456 | 2981 | case DRM_FORMAT_YVYU: |
c34ce3d1 | 2982 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_YVYU; |
6156a456 | 2983 | case DRM_FORMAT_UYVY: |
c34ce3d1 | 2984 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_UYVY; |
6156a456 | 2985 | case DRM_FORMAT_VYUY: |
c34ce3d1 | 2986 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_VYUY; |
70d21f0e | 2987 | default: |
4249eeef | 2988 | MISSING_CASE(pixel_format); |
70d21f0e | 2989 | } |
8cfcba41 | 2990 | |
c34ce3d1 | 2991 | return 0; |
6156a456 | 2992 | } |
70d21f0e | 2993 | |
6156a456 CK |
2994 | u32 skl_plane_ctl_tiling(uint64_t fb_modifier) |
2995 | { | |
6156a456 | 2996 | switch (fb_modifier) { |
30af77c4 | 2997 | case DRM_FORMAT_MOD_NONE: |
70d21f0e | 2998 | break; |
30af77c4 | 2999 | case I915_FORMAT_MOD_X_TILED: |
c34ce3d1 | 3000 | return PLANE_CTL_TILED_X; |
b321803d | 3001 | case I915_FORMAT_MOD_Y_TILED: |
c34ce3d1 | 3002 | return PLANE_CTL_TILED_Y; |
b321803d | 3003 | case I915_FORMAT_MOD_Yf_TILED: |
c34ce3d1 | 3004 | return PLANE_CTL_TILED_YF; |
70d21f0e | 3005 | default: |
6156a456 | 3006 | MISSING_CASE(fb_modifier); |
70d21f0e | 3007 | } |
8cfcba41 | 3008 | |
c34ce3d1 | 3009 | return 0; |
6156a456 | 3010 | } |
70d21f0e | 3011 | |
6156a456 CK |
3012 | u32 skl_plane_ctl_rotation(unsigned int rotation) |
3013 | { | |
3b7a5119 | 3014 | switch (rotation) { |
6156a456 CK |
3015 | case BIT(DRM_ROTATE_0): |
3016 | break; | |
1e8df167 SJ |
3017 | /* |
3018 | * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr | |
3019 | * while i915 HW rotation is clockwise, thats why this swapping. | |
3020 | */ | |
3b7a5119 | 3021 | case BIT(DRM_ROTATE_90): |
1e8df167 | 3022 | return PLANE_CTL_ROTATE_270; |
3b7a5119 | 3023 | case BIT(DRM_ROTATE_180): |
c34ce3d1 | 3024 | return PLANE_CTL_ROTATE_180; |
3b7a5119 | 3025 | case BIT(DRM_ROTATE_270): |
1e8df167 | 3026 | return PLANE_CTL_ROTATE_90; |
6156a456 CK |
3027 | default: |
3028 | MISSING_CASE(rotation); | |
3029 | } | |
3030 | ||
c34ce3d1 | 3031 | return 0; |
6156a456 CK |
3032 | } |
3033 | ||
3034 | static void skylake_update_primary_plane(struct drm_crtc *crtc, | |
3035 | struct drm_framebuffer *fb, | |
3036 | int x, int y) | |
3037 | { | |
3038 | struct drm_device *dev = crtc->dev; | |
3039 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3040 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
b70709a6 ML |
3041 | struct drm_plane *plane = crtc->primary; |
3042 | bool visible = to_intel_plane_state(plane->state)->visible; | |
6156a456 CK |
3043 | struct drm_i915_gem_object *obj; |
3044 | int pipe = intel_crtc->pipe; | |
3045 | u32 plane_ctl, stride_div, stride; | |
3046 | u32 tile_height, plane_offset, plane_size; | |
3047 | unsigned int rotation; | |
3048 | int x_offset, y_offset; | |
3049 | unsigned long surf_addr; | |
6156a456 CK |
3050 | struct intel_crtc_state *crtc_state = intel_crtc->config; |
3051 | struct intel_plane_state *plane_state; | |
3052 | int src_x = 0, src_y = 0, src_w = 0, src_h = 0; | |
3053 | int dst_x = 0, dst_y = 0, dst_w = 0, dst_h = 0; | |
3054 | int scaler_id = -1; | |
3055 | ||
6156a456 CK |
3056 | plane_state = to_intel_plane_state(plane->state); |
3057 | ||
b70709a6 | 3058 | if (!visible || !fb) { |
6156a456 CK |
3059 | I915_WRITE(PLANE_CTL(pipe, 0), 0); |
3060 | I915_WRITE(PLANE_SURF(pipe, 0), 0); | |
3061 | POSTING_READ(PLANE_CTL(pipe, 0)); | |
3062 | return; | |
3b7a5119 | 3063 | } |
70d21f0e | 3064 | |
6156a456 CK |
3065 | plane_ctl = PLANE_CTL_ENABLE | |
3066 | PLANE_CTL_PIPE_GAMMA_ENABLE | | |
3067 | PLANE_CTL_PIPE_CSC_ENABLE; | |
3068 | ||
3069 | plane_ctl |= skl_plane_ctl_format(fb->pixel_format); | |
3070 | plane_ctl |= skl_plane_ctl_tiling(fb->modifier[0]); | |
3071 | plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE; | |
3072 | ||
3073 | rotation = plane->state->rotation; | |
3074 | plane_ctl |= skl_plane_ctl_rotation(rotation); | |
3075 | ||
b321803d DL |
3076 | obj = intel_fb_obj(fb); |
3077 | stride_div = intel_fb_stride_alignment(dev, fb->modifier[0], | |
3078 | fb->pixel_format); | |
3b7a5119 SJ |
3079 | surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj); |
3080 | ||
6156a456 CK |
3081 | /* |
3082 | * FIXME: intel_plane_state->src, dst aren't set when transitional | |
3083 | * update_plane helpers are called from legacy paths. | |
3084 | * Once full atomic crtc is available, below check can be avoided. | |
3085 | */ | |
3086 | if (drm_rect_width(&plane_state->src)) { | |
3087 | scaler_id = plane_state->scaler_id; | |
3088 | src_x = plane_state->src.x1 >> 16; | |
3089 | src_y = plane_state->src.y1 >> 16; | |
3090 | src_w = drm_rect_width(&plane_state->src) >> 16; | |
3091 | src_h = drm_rect_height(&plane_state->src) >> 16; | |
3092 | dst_x = plane_state->dst.x1; | |
3093 | dst_y = plane_state->dst.y1; | |
3094 | dst_w = drm_rect_width(&plane_state->dst); | |
3095 | dst_h = drm_rect_height(&plane_state->dst); | |
3096 | ||
3097 | WARN_ON(x != src_x || y != src_y); | |
3098 | } else { | |
3099 | src_w = intel_crtc->config->pipe_src_w; | |
3100 | src_h = intel_crtc->config->pipe_src_h; | |
3101 | } | |
3102 | ||
3b7a5119 SJ |
3103 | if (intel_rotation_90_or_270(rotation)) { |
3104 | /* stride = Surface height in tiles */ | |
2614f17d | 3105 | tile_height = intel_tile_height(dev, fb->pixel_format, |
3b7a5119 SJ |
3106 | fb->modifier[0]); |
3107 | stride = DIV_ROUND_UP(fb->height, tile_height); | |
6156a456 | 3108 | x_offset = stride * tile_height - y - src_h; |
3b7a5119 | 3109 | y_offset = x; |
6156a456 | 3110 | plane_size = (src_w - 1) << 16 | (src_h - 1); |
3b7a5119 SJ |
3111 | } else { |
3112 | stride = fb->pitches[0] / stride_div; | |
3113 | x_offset = x; | |
3114 | y_offset = y; | |
6156a456 | 3115 | plane_size = (src_h - 1) << 16 | (src_w - 1); |
3b7a5119 SJ |
3116 | } |
3117 | plane_offset = y_offset << 16 | x_offset; | |
b321803d | 3118 | |
70d21f0e | 3119 | I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl); |
3b7a5119 SJ |
3120 | I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset); |
3121 | I915_WRITE(PLANE_SIZE(pipe, 0), plane_size); | |
3122 | I915_WRITE(PLANE_STRIDE(pipe, 0), stride); | |
6156a456 CK |
3123 | |
3124 | if (scaler_id >= 0) { | |
3125 | uint32_t ps_ctrl = 0; | |
3126 | ||
3127 | WARN_ON(!dst_w || !dst_h); | |
3128 | ps_ctrl = PS_SCALER_EN | PS_PLANE_SEL(0) | | |
3129 | crtc_state->scaler_state.scalers[scaler_id].mode; | |
3130 | I915_WRITE(SKL_PS_CTRL(pipe, scaler_id), ps_ctrl); | |
3131 | I915_WRITE(SKL_PS_PWR_GATE(pipe, scaler_id), 0); | |
3132 | I915_WRITE(SKL_PS_WIN_POS(pipe, scaler_id), (dst_x << 16) | dst_y); | |
3133 | I915_WRITE(SKL_PS_WIN_SZ(pipe, scaler_id), (dst_w << 16) | dst_h); | |
3134 | I915_WRITE(PLANE_POS(pipe, 0), 0); | |
3135 | } else { | |
3136 | I915_WRITE(PLANE_POS(pipe, 0), (dst_y << 16) | dst_x); | |
3137 | } | |
3138 | ||
121920fa | 3139 | I915_WRITE(PLANE_SURF(pipe, 0), surf_addr); |
70d21f0e DL |
3140 | |
3141 | POSTING_READ(PLANE_SURF(pipe, 0)); | |
3142 | } | |
3143 | ||
17638cd6 JB |
3144 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ |
3145 | static int | |
3146 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
3147 | int x, int y, enum mode_set_atomic state) | |
3148 | { | |
3149 | struct drm_device *dev = crtc->dev; | |
3150 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 3151 | |
ff2a3117 | 3152 | if (dev_priv->fbc.disable_fbc) |
7733b49b | 3153 | dev_priv->fbc.disable_fbc(dev_priv); |
81255565 | 3154 | |
29b9bde6 DV |
3155 | dev_priv->display.update_primary_plane(crtc, fb, x, y); |
3156 | ||
3157 | return 0; | |
81255565 JB |
3158 | } |
3159 | ||
7514747d | 3160 | static void intel_complete_page_flips(struct drm_device *dev) |
96a02917 | 3161 | { |
96a02917 VS |
3162 | struct drm_crtc *crtc; |
3163 | ||
70e1e0ec | 3164 | for_each_crtc(dev, crtc) { |
96a02917 VS |
3165 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3166 | enum plane plane = intel_crtc->plane; | |
3167 | ||
3168 | intel_prepare_page_flip(dev, plane); | |
3169 | intel_finish_page_flip_plane(dev, plane); | |
3170 | } | |
7514747d VS |
3171 | } |
3172 | ||
3173 | static void intel_update_primary_planes(struct drm_device *dev) | |
3174 | { | |
3175 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3176 | struct drm_crtc *crtc; | |
96a02917 | 3177 | |
70e1e0ec | 3178 | for_each_crtc(dev, crtc) { |
96a02917 VS |
3179 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3180 | ||
51fd371b | 3181 | drm_modeset_lock(&crtc->mutex, NULL); |
947fdaad CW |
3182 | /* |
3183 | * FIXME: Once we have proper support for primary planes (and | |
3184 | * disabling them without disabling the entire crtc) allow again | |
66e514c1 | 3185 | * a NULL crtc->primary->fb. |
947fdaad | 3186 | */ |
f4510a27 | 3187 | if (intel_crtc->active && crtc->primary->fb) |
262ca2b0 | 3188 | dev_priv->display.update_primary_plane(crtc, |
66e514c1 | 3189 | crtc->primary->fb, |
262ca2b0 MR |
3190 | crtc->x, |
3191 | crtc->y); | |
51fd371b | 3192 | drm_modeset_unlock(&crtc->mutex); |
96a02917 VS |
3193 | } |
3194 | } | |
3195 | ||
7514747d VS |
3196 | void intel_prepare_reset(struct drm_device *dev) |
3197 | { | |
3198 | /* no reset support for gen2 */ | |
3199 | if (IS_GEN2(dev)) | |
3200 | return; | |
3201 | ||
3202 | /* reset doesn't touch the display */ | |
3203 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) | |
3204 | return; | |
3205 | ||
3206 | drm_modeset_lock_all(dev); | |
f98ce92f VS |
3207 | /* |
3208 | * Disabling the crtcs gracefully seems nicer. Also the | |
3209 | * g33 docs say we should at least disable all the planes. | |
3210 | */ | |
6b72d486 | 3211 | intel_display_suspend(dev); |
7514747d VS |
3212 | } |
3213 | ||
3214 | void intel_finish_reset(struct drm_device *dev) | |
3215 | { | |
3216 | struct drm_i915_private *dev_priv = to_i915(dev); | |
3217 | ||
3218 | /* | |
3219 | * Flips in the rings will be nuked by the reset, | |
3220 | * so complete all pending flips so that user space | |
3221 | * will get its events and not get stuck. | |
3222 | */ | |
3223 | intel_complete_page_flips(dev); | |
3224 | ||
3225 | /* no reset support for gen2 */ | |
3226 | if (IS_GEN2(dev)) | |
3227 | return; | |
3228 | ||
3229 | /* reset doesn't touch the display */ | |
3230 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) { | |
3231 | /* | |
3232 | * Flips in the rings have been nuked by the reset, | |
3233 | * so update the base address of all primary | |
3234 | * planes to the the last fb to make sure we're | |
3235 | * showing the correct fb after a reset. | |
3236 | */ | |
3237 | intel_update_primary_planes(dev); | |
3238 | return; | |
3239 | } | |
3240 | ||
3241 | /* | |
3242 | * The display has been reset as well, | |
3243 | * so need a full re-initialization. | |
3244 | */ | |
3245 | intel_runtime_pm_disable_interrupts(dev_priv); | |
3246 | intel_runtime_pm_enable_interrupts(dev_priv); | |
3247 | ||
3248 | intel_modeset_init_hw(dev); | |
3249 | ||
3250 | spin_lock_irq(&dev_priv->irq_lock); | |
3251 | if (dev_priv->display.hpd_irq_setup) | |
3252 | dev_priv->display.hpd_irq_setup(dev); | |
3253 | spin_unlock_irq(&dev_priv->irq_lock); | |
3254 | ||
043e9bda | 3255 | intel_display_resume(dev); |
7514747d VS |
3256 | |
3257 | intel_hpd_init(dev_priv); | |
3258 | ||
3259 | drm_modeset_unlock_all(dev); | |
3260 | } | |
3261 | ||
2e2f351d | 3262 | static void |
14667a4b CW |
3263 | intel_finish_fb(struct drm_framebuffer *old_fb) |
3264 | { | |
2ff8fde1 | 3265 | struct drm_i915_gem_object *obj = intel_fb_obj(old_fb); |
2e2f351d | 3266 | struct drm_i915_private *dev_priv = to_i915(obj->base.dev); |
14667a4b CW |
3267 | bool was_interruptible = dev_priv->mm.interruptible; |
3268 | int ret; | |
3269 | ||
14667a4b CW |
3270 | /* Big Hammer, we also need to ensure that any pending |
3271 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
3272 | * current scanout is retired before unpinning the old | |
2e2f351d CW |
3273 | * framebuffer. Note that we rely on userspace rendering |
3274 | * into the buffer attached to the pipe they are waiting | |
3275 | * on. If not, userspace generates a GPU hang with IPEHR | |
3276 | * point to the MI_WAIT_FOR_EVENT. | |
14667a4b CW |
3277 | * |
3278 | * This should only fail upon a hung GPU, in which case we | |
3279 | * can safely continue. | |
3280 | */ | |
3281 | dev_priv->mm.interruptible = false; | |
2e2f351d | 3282 | ret = i915_gem_object_wait_rendering(obj, true); |
14667a4b CW |
3283 | dev_priv->mm.interruptible = was_interruptible; |
3284 | ||
2e2f351d | 3285 | WARN_ON(ret); |
14667a4b CW |
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 | ||
e30e8f75 GP |
3306 | static void intel_update_pipe_size(struct intel_crtc *crtc) |
3307 | { | |
3308 | struct drm_device *dev = crtc->base.dev; | |
3309 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3310 | const struct drm_display_mode *adjusted_mode; | |
3311 | ||
3312 | if (!i915.fastboot) | |
3313 | return; | |
3314 | ||
3315 | /* | |
3316 | * Update pipe size and adjust fitter if needed: the reason for this is | |
3317 | * that in compute_mode_changes we check the native mode (not the pfit | |
3318 | * mode) to see if we can flip rather than do a full mode set. In the | |
3319 | * fastboot case, we'll flip, but if we don't update the pipesrc and | |
3320 | * pfit state, we'll end up with a big fb scanned out into the wrong | |
3321 | * sized surface. | |
3322 | * | |
3323 | * To fix this properly, we need to hoist the checks up into | |
3324 | * compute_mode_changes (or above), check the actual pfit state and | |
3325 | * whether the platform allows pfit disable with pipe active, and only | |
3326 | * then update the pipesrc and pfit state, even on the flip path. | |
3327 | */ | |
3328 | ||
6e3c9717 | 3329 | adjusted_mode = &crtc->config->base.adjusted_mode; |
e30e8f75 GP |
3330 | |
3331 | I915_WRITE(PIPESRC(crtc->pipe), | |
3332 | ((adjusted_mode->crtc_hdisplay - 1) << 16) | | |
3333 | (adjusted_mode->crtc_vdisplay - 1)); | |
6e3c9717 | 3334 | if (!crtc->config->pch_pfit.enabled && |
409ee761 ACO |
3335 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || |
3336 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
e30e8f75 GP |
3337 | I915_WRITE(PF_CTL(crtc->pipe), 0); |
3338 | I915_WRITE(PF_WIN_POS(crtc->pipe), 0); | |
3339 | I915_WRITE(PF_WIN_SZ(crtc->pipe), 0); | |
3340 | } | |
6e3c9717 ACO |
3341 | crtc->config->pipe_src_w = adjusted_mode->crtc_hdisplay; |
3342 | crtc->config->pipe_src_h = adjusted_mode->crtc_vdisplay; | |
e30e8f75 GP |
3343 | } |
3344 | ||
5e84e1a4 ZW |
3345 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
3346 | { | |
3347 | struct drm_device *dev = crtc->dev; | |
3348 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3349 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3350 | int pipe = intel_crtc->pipe; | |
3351 | u32 reg, temp; | |
3352 | ||
3353 | /* enable normal train */ | |
3354 | reg = FDI_TX_CTL(pipe); | |
3355 | temp = I915_READ(reg); | |
61e499bf | 3356 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
3357 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
3358 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
3359 | } else { |
3360 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3361 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 3362 | } |
5e84e1a4 ZW |
3363 | I915_WRITE(reg, temp); |
3364 | ||
3365 | reg = FDI_RX_CTL(pipe); | |
3366 | temp = I915_READ(reg); | |
3367 | if (HAS_PCH_CPT(dev)) { | |
3368 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3369 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
3370 | } else { | |
3371 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3372 | temp |= FDI_LINK_TRAIN_NONE; | |
3373 | } | |
3374 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
3375 | ||
3376 | /* wait one idle pattern time */ | |
3377 | POSTING_READ(reg); | |
3378 | udelay(1000); | |
357555c0 JB |
3379 | |
3380 | /* IVB wants error correction enabled */ | |
3381 | if (IS_IVYBRIDGE(dev)) | |
3382 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
3383 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
3384 | } |
3385 | ||
8db9d77b ZW |
3386 | /* The FDI link training functions for ILK/Ibexpeak. */ |
3387 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
3388 | { | |
3389 | struct drm_device *dev = crtc->dev; | |
3390 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3391 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3392 | int pipe = intel_crtc->pipe; | |
5eddb70b | 3393 | u32 reg, temp, tries; |
8db9d77b | 3394 | |
1c8562f6 | 3395 | /* FDI needs bits from pipe first */ |
0fc932b8 | 3396 | assert_pipe_enabled(dev_priv, pipe); |
0fc932b8 | 3397 | |
e1a44743 AJ |
3398 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
3399 | for train result */ | |
5eddb70b CW |
3400 | reg = FDI_RX_IMR(pipe); |
3401 | temp = I915_READ(reg); | |
e1a44743 AJ |
3402 | temp &= ~FDI_RX_SYMBOL_LOCK; |
3403 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
3404 | I915_WRITE(reg, temp); |
3405 | I915_READ(reg); | |
e1a44743 AJ |
3406 | udelay(150); |
3407 | ||
8db9d77b | 3408 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
3409 | reg = FDI_TX_CTL(pipe); |
3410 | temp = I915_READ(reg); | |
627eb5a3 | 3411 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3412 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
8db9d77b ZW |
3413 | temp &= ~FDI_LINK_TRAIN_NONE; |
3414 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 3415 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 3416 | |
5eddb70b CW |
3417 | reg = FDI_RX_CTL(pipe); |
3418 | temp = I915_READ(reg); | |
8db9d77b ZW |
3419 | temp &= ~FDI_LINK_TRAIN_NONE; |
3420 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
3421 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
3422 | ||
3423 | POSTING_READ(reg); | |
8db9d77b ZW |
3424 | udelay(150); |
3425 | ||
5b2adf89 | 3426 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
8f5718a6 DV |
3427 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
3428 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
3429 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
5b2adf89 | 3430 | |
5eddb70b | 3431 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 3432 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 3433 | temp = I915_READ(reg); |
8db9d77b ZW |
3434 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
3435 | ||
3436 | if ((temp & FDI_RX_BIT_LOCK)) { | |
3437 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 3438 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
3439 | break; |
3440 | } | |
8db9d77b | 3441 | } |
e1a44743 | 3442 | if (tries == 5) |
5eddb70b | 3443 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
3444 | |
3445 | /* Train 2 */ | |
5eddb70b CW |
3446 | reg = FDI_TX_CTL(pipe); |
3447 | temp = I915_READ(reg); | |
8db9d77b ZW |
3448 | temp &= ~FDI_LINK_TRAIN_NONE; |
3449 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 3450 | I915_WRITE(reg, temp); |
8db9d77b | 3451 | |
5eddb70b CW |
3452 | reg = FDI_RX_CTL(pipe); |
3453 | temp = I915_READ(reg); | |
8db9d77b ZW |
3454 | temp &= ~FDI_LINK_TRAIN_NONE; |
3455 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 3456 | I915_WRITE(reg, temp); |
8db9d77b | 3457 | |
5eddb70b CW |
3458 | POSTING_READ(reg); |
3459 | udelay(150); | |
8db9d77b | 3460 | |
5eddb70b | 3461 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 3462 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 3463 | temp = I915_READ(reg); |
8db9d77b ZW |
3464 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
3465 | ||
3466 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 3467 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
3468 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
3469 | break; | |
3470 | } | |
8db9d77b | 3471 | } |
e1a44743 | 3472 | if (tries == 5) |
5eddb70b | 3473 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
3474 | |
3475 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 3476 | |
8db9d77b ZW |
3477 | } |
3478 | ||
0206e353 | 3479 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
3480 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
3481 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
3482 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
3483 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
3484 | }; | |
3485 | ||
3486 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
3487 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
3488 | { | |
3489 | struct drm_device *dev = crtc->dev; | |
3490 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3491 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3492 | int pipe = intel_crtc->pipe; | |
fa37d39e | 3493 | u32 reg, temp, i, retry; |
8db9d77b | 3494 | |
e1a44743 AJ |
3495 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
3496 | for train result */ | |
5eddb70b CW |
3497 | reg = FDI_RX_IMR(pipe); |
3498 | temp = I915_READ(reg); | |
e1a44743 AJ |
3499 | temp &= ~FDI_RX_SYMBOL_LOCK; |
3500 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
3501 | I915_WRITE(reg, temp); |
3502 | ||
3503 | POSTING_READ(reg); | |
e1a44743 AJ |
3504 | udelay(150); |
3505 | ||
8db9d77b | 3506 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
3507 | reg = FDI_TX_CTL(pipe); |
3508 | temp = I915_READ(reg); | |
627eb5a3 | 3509 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3510 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
8db9d77b ZW |
3511 | temp &= ~FDI_LINK_TRAIN_NONE; |
3512 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3513 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
3514 | /* SNB-B */ | |
3515 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 3516 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 3517 | |
d74cf324 DV |
3518 | I915_WRITE(FDI_RX_MISC(pipe), |
3519 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
3520 | ||
5eddb70b CW |
3521 | reg = FDI_RX_CTL(pipe); |
3522 | temp = I915_READ(reg); | |
8db9d77b ZW |
3523 | if (HAS_PCH_CPT(dev)) { |
3524 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3525 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
3526 | } else { | |
3527 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3528 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3529 | } | |
5eddb70b CW |
3530 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
3531 | ||
3532 | POSTING_READ(reg); | |
8db9d77b ZW |
3533 | udelay(150); |
3534 | ||
0206e353 | 3535 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
3536 | reg = FDI_TX_CTL(pipe); |
3537 | temp = I915_READ(reg); | |
8db9d77b ZW |
3538 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
3539 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
3540 | I915_WRITE(reg, temp); |
3541 | ||
3542 | POSTING_READ(reg); | |
8db9d77b ZW |
3543 | udelay(500); |
3544 | ||
fa37d39e SP |
3545 | for (retry = 0; retry < 5; retry++) { |
3546 | reg = FDI_RX_IIR(pipe); | |
3547 | temp = I915_READ(reg); | |
3548 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
3549 | if (temp & FDI_RX_BIT_LOCK) { | |
3550 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
3551 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
3552 | break; | |
3553 | } | |
3554 | udelay(50); | |
8db9d77b | 3555 | } |
fa37d39e SP |
3556 | if (retry < 5) |
3557 | break; | |
8db9d77b ZW |
3558 | } |
3559 | if (i == 4) | |
5eddb70b | 3560 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
3561 | |
3562 | /* Train 2 */ | |
5eddb70b CW |
3563 | reg = FDI_TX_CTL(pipe); |
3564 | temp = I915_READ(reg); | |
8db9d77b ZW |
3565 | temp &= ~FDI_LINK_TRAIN_NONE; |
3566 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
3567 | if (IS_GEN6(dev)) { | |
3568 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
3569 | /* SNB-B */ | |
3570 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
3571 | } | |
5eddb70b | 3572 | I915_WRITE(reg, temp); |
8db9d77b | 3573 | |
5eddb70b CW |
3574 | reg = FDI_RX_CTL(pipe); |
3575 | temp = I915_READ(reg); | |
8db9d77b ZW |
3576 | if (HAS_PCH_CPT(dev)) { |
3577 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3578 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
3579 | } else { | |
3580 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3581 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
3582 | } | |
5eddb70b CW |
3583 | I915_WRITE(reg, temp); |
3584 | ||
3585 | POSTING_READ(reg); | |
8db9d77b ZW |
3586 | udelay(150); |
3587 | ||
0206e353 | 3588 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
3589 | reg = FDI_TX_CTL(pipe); |
3590 | temp = I915_READ(reg); | |
8db9d77b ZW |
3591 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
3592 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
3593 | I915_WRITE(reg, temp); |
3594 | ||
3595 | POSTING_READ(reg); | |
8db9d77b ZW |
3596 | udelay(500); |
3597 | ||
fa37d39e SP |
3598 | for (retry = 0; retry < 5; retry++) { |
3599 | reg = FDI_RX_IIR(pipe); | |
3600 | temp = I915_READ(reg); | |
3601 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
3602 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
3603 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
3604 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
3605 | break; | |
3606 | } | |
3607 | udelay(50); | |
8db9d77b | 3608 | } |
fa37d39e SP |
3609 | if (retry < 5) |
3610 | break; | |
8db9d77b ZW |
3611 | } |
3612 | if (i == 4) | |
5eddb70b | 3613 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
3614 | |
3615 | DRM_DEBUG_KMS("FDI train done.\n"); | |
3616 | } | |
3617 | ||
357555c0 JB |
3618 | /* Manual link training for Ivy Bridge A0 parts */ |
3619 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
3620 | { | |
3621 | struct drm_device *dev = crtc->dev; | |
3622 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3623 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3624 | int pipe = intel_crtc->pipe; | |
139ccd3f | 3625 | u32 reg, temp, i, j; |
357555c0 JB |
3626 | |
3627 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
3628 | for train result */ | |
3629 | reg = FDI_RX_IMR(pipe); | |
3630 | temp = I915_READ(reg); | |
3631 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
3632 | temp &= ~FDI_RX_BIT_LOCK; | |
3633 | I915_WRITE(reg, temp); | |
3634 | ||
3635 | POSTING_READ(reg); | |
3636 | udelay(150); | |
3637 | ||
01a415fd DV |
3638 | DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n", |
3639 | I915_READ(FDI_RX_IIR(pipe))); | |
3640 | ||
139ccd3f JB |
3641 | /* Try each vswing and preemphasis setting twice before moving on */ |
3642 | for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) { | |
3643 | /* disable first in case we need to retry */ | |
3644 | reg = FDI_TX_CTL(pipe); | |
3645 | temp = I915_READ(reg); | |
3646 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
3647 | temp &= ~FDI_TX_ENABLE; | |
3648 | I915_WRITE(reg, temp); | |
357555c0 | 3649 | |
139ccd3f JB |
3650 | reg = FDI_RX_CTL(pipe); |
3651 | temp = I915_READ(reg); | |
3652 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
3653 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3654 | temp &= ~FDI_RX_ENABLE; | |
3655 | I915_WRITE(reg, temp); | |
357555c0 | 3656 | |
139ccd3f | 3657 | /* enable CPU FDI TX and PCH FDI RX */ |
357555c0 JB |
3658 | reg = FDI_TX_CTL(pipe); |
3659 | temp = I915_READ(reg); | |
139ccd3f | 3660 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3661 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
139ccd3f | 3662 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; |
357555c0 | 3663 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
139ccd3f JB |
3664 | temp |= snb_b_fdi_train_param[j/2]; |
3665 | temp |= FDI_COMPOSITE_SYNC; | |
3666 | I915_WRITE(reg, temp | FDI_TX_ENABLE); | |
357555c0 | 3667 | |
139ccd3f JB |
3668 | I915_WRITE(FDI_RX_MISC(pipe), |
3669 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
357555c0 | 3670 | |
139ccd3f | 3671 | reg = FDI_RX_CTL(pipe); |
357555c0 | 3672 | temp = I915_READ(reg); |
139ccd3f JB |
3673 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
3674 | temp |= FDI_COMPOSITE_SYNC; | |
3675 | I915_WRITE(reg, temp | FDI_RX_ENABLE); | |
357555c0 | 3676 | |
139ccd3f JB |
3677 | POSTING_READ(reg); |
3678 | udelay(1); /* should be 0.5us */ | |
357555c0 | 3679 | |
139ccd3f JB |
3680 | for (i = 0; i < 4; i++) { |
3681 | reg = FDI_RX_IIR(pipe); | |
3682 | temp = I915_READ(reg); | |
3683 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
357555c0 | 3684 | |
139ccd3f JB |
3685 | if (temp & FDI_RX_BIT_LOCK || |
3686 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
3687 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
3688 | DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", | |
3689 | i); | |
3690 | break; | |
3691 | } | |
3692 | udelay(1); /* should be 0.5us */ | |
3693 | } | |
3694 | if (i == 4) { | |
3695 | DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2); | |
3696 | continue; | |
3697 | } | |
357555c0 | 3698 | |
139ccd3f | 3699 | /* Train 2 */ |
357555c0 JB |
3700 | reg = FDI_TX_CTL(pipe); |
3701 | temp = I915_READ(reg); | |
139ccd3f JB |
3702 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
3703 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
3704 | I915_WRITE(reg, temp); | |
3705 | ||
3706 | reg = FDI_RX_CTL(pipe); | |
3707 | temp = I915_READ(reg); | |
3708 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3709 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
357555c0 JB |
3710 | I915_WRITE(reg, temp); |
3711 | ||
3712 | POSTING_READ(reg); | |
139ccd3f | 3713 | udelay(2); /* should be 1.5us */ |
357555c0 | 3714 | |
139ccd3f JB |
3715 | for (i = 0; i < 4; i++) { |
3716 | reg = FDI_RX_IIR(pipe); | |
3717 | temp = I915_READ(reg); | |
3718 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
357555c0 | 3719 | |
139ccd3f JB |
3720 | if (temp & FDI_RX_SYMBOL_LOCK || |
3721 | (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) { | |
3722 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
3723 | DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", | |
3724 | i); | |
3725 | goto train_done; | |
3726 | } | |
3727 | udelay(2); /* should be 1.5us */ | |
357555c0 | 3728 | } |
139ccd3f JB |
3729 | if (i == 4) |
3730 | DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2); | |
357555c0 | 3731 | } |
357555c0 | 3732 | |
139ccd3f | 3733 | train_done: |
357555c0 JB |
3734 | DRM_DEBUG_KMS("FDI train done.\n"); |
3735 | } | |
3736 | ||
88cefb6c | 3737 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 3738 | { |
88cefb6c | 3739 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 3740 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 3741 | int pipe = intel_crtc->pipe; |
5eddb70b | 3742 | u32 reg, temp; |
79e53945 | 3743 | |
c64e311e | 3744 | |
c98e9dcf | 3745 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
3746 | reg = FDI_RX_CTL(pipe); |
3747 | temp = I915_READ(reg); | |
627eb5a3 | 3748 | temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16)); |
6e3c9717 | 3749 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
dfd07d72 | 3750 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
5eddb70b CW |
3751 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); |
3752 | ||
3753 | POSTING_READ(reg); | |
c98e9dcf JB |
3754 | udelay(200); |
3755 | ||
3756 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
3757 | temp = I915_READ(reg); |
3758 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
3759 | ||
3760 | POSTING_READ(reg); | |
c98e9dcf JB |
3761 | udelay(200); |
3762 | ||
20749730 PZ |
3763 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
3764 | reg = FDI_TX_CTL(pipe); | |
3765 | temp = I915_READ(reg); | |
3766 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
3767 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 3768 | |
20749730 PZ |
3769 | POSTING_READ(reg); |
3770 | udelay(100); | |
6be4a607 | 3771 | } |
0e23b99d JB |
3772 | } |
3773 | ||
88cefb6c DV |
3774 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
3775 | { | |
3776 | struct drm_device *dev = intel_crtc->base.dev; | |
3777 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3778 | int pipe = intel_crtc->pipe; | |
3779 | u32 reg, temp; | |
3780 | ||
3781 | /* Switch from PCDclk to Rawclk */ | |
3782 | reg = FDI_RX_CTL(pipe); | |
3783 | temp = I915_READ(reg); | |
3784 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
3785 | ||
3786 | /* Disable CPU FDI TX PLL */ | |
3787 | reg = FDI_TX_CTL(pipe); | |
3788 | temp = I915_READ(reg); | |
3789 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
3790 | ||
3791 | POSTING_READ(reg); | |
3792 | udelay(100); | |
3793 | ||
3794 | reg = FDI_RX_CTL(pipe); | |
3795 | temp = I915_READ(reg); | |
3796 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
3797 | ||
3798 | /* Wait for the clocks to turn off. */ | |
3799 | POSTING_READ(reg); | |
3800 | udelay(100); | |
3801 | } | |
3802 | ||
0fc932b8 JB |
3803 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
3804 | { | |
3805 | struct drm_device *dev = crtc->dev; | |
3806 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3807 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3808 | int pipe = intel_crtc->pipe; | |
3809 | u32 reg, temp; | |
3810 | ||
3811 | /* disable CPU FDI tx and PCH FDI rx */ | |
3812 | reg = FDI_TX_CTL(pipe); | |
3813 | temp = I915_READ(reg); | |
3814 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
3815 | POSTING_READ(reg); | |
3816 | ||
3817 | reg = FDI_RX_CTL(pipe); | |
3818 | temp = I915_READ(reg); | |
3819 | temp &= ~(0x7 << 16); | |
dfd07d72 | 3820 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
3821 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); |
3822 | ||
3823 | POSTING_READ(reg); | |
3824 | udelay(100); | |
3825 | ||
3826 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
eba905b2 | 3827 | if (HAS_PCH_IBX(dev)) |
6f06ce18 | 3828 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
0fc932b8 JB |
3829 | |
3830 | /* still set train pattern 1 */ | |
3831 | reg = FDI_TX_CTL(pipe); | |
3832 | temp = I915_READ(reg); | |
3833 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3834 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3835 | I915_WRITE(reg, temp); | |
3836 | ||
3837 | reg = FDI_RX_CTL(pipe); | |
3838 | temp = I915_READ(reg); | |
3839 | if (HAS_PCH_CPT(dev)) { | |
3840 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3841 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
3842 | } else { | |
3843 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3844 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3845 | } | |
3846 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
3847 | temp &= ~(0x07 << 16); | |
dfd07d72 | 3848 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
3849 | I915_WRITE(reg, temp); |
3850 | ||
3851 | POSTING_READ(reg); | |
3852 | udelay(100); | |
3853 | } | |
3854 | ||
5dce5b93 CW |
3855 | bool intel_has_pending_fb_unpin(struct drm_device *dev) |
3856 | { | |
3857 | struct intel_crtc *crtc; | |
3858 | ||
3859 | /* Note that we don't need to be called with mode_config.lock here | |
3860 | * as our list of CRTC objects is static for the lifetime of the | |
3861 | * device and so cannot disappear as we iterate. Similarly, we can | |
3862 | * happily treat the predicates as racy, atomic checks as userspace | |
3863 | * cannot claim and pin a new fb without at least acquring the | |
3864 | * struct_mutex and so serialising with us. | |
3865 | */ | |
d3fcc808 | 3866 | for_each_intel_crtc(dev, crtc) { |
5dce5b93 CW |
3867 | if (atomic_read(&crtc->unpin_work_count) == 0) |
3868 | continue; | |
3869 | ||
3870 | if (crtc->unpin_work) | |
3871 | intel_wait_for_vblank(dev, crtc->pipe); | |
3872 | ||
3873 | return true; | |
3874 | } | |
3875 | ||
3876 | return false; | |
3877 | } | |
3878 | ||
d6bbafa1 CW |
3879 | static void page_flip_completed(struct intel_crtc *intel_crtc) |
3880 | { | |
3881 | struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev); | |
3882 | struct intel_unpin_work *work = intel_crtc->unpin_work; | |
3883 | ||
3884 | /* ensure that the unpin work is consistent wrt ->pending. */ | |
3885 | smp_rmb(); | |
3886 | intel_crtc->unpin_work = NULL; | |
3887 | ||
3888 | if (work->event) | |
3889 | drm_send_vblank_event(intel_crtc->base.dev, | |
3890 | intel_crtc->pipe, | |
3891 | work->event); | |
3892 | ||
3893 | drm_crtc_vblank_put(&intel_crtc->base); | |
3894 | ||
3895 | wake_up_all(&dev_priv->pending_flip_queue); | |
3896 | queue_work(dev_priv->wq, &work->work); | |
3897 | ||
3898 | trace_i915_flip_complete(intel_crtc->plane, | |
3899 | work->pending_flip_obj); | |
3900 | } | |
3901 | ||
46a55d30 | 3902 | void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
e6c3a2a6 | 3903 | { |
0f91128d | 3904 | struct drm_device *dev = crtc->dev; |
5bb61643 | 3905 | struct drm_i915_private *dev_priv = dev->dev_private; |
e6c3a2a6 | 3906 | |
2c10d571 | 3907 | WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue)); |
9c787942 CW |
3908 | if (WARN_ON(wait_event_timeout(dev_priv->pending_flip_queue, |
3909 | !intel_crtc_has_pending_flip(crtc), | |
3910 | 60*HZ) == 0)) { | |
3911 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2c10d571 | 3912 | |
5e2d7afc | 3913 | spin_lock_irq(&dev->event_lock); |
9c787942 CW |
3914 | if (intel_crtc->unpin_work) { |
3915 | WARN_ONCE(1, "Removing stuck page flip\n"); | |
3916 | page_flip_completed(intel_crtc); | |
3917 | } | |
5e2d7afc | 3918 | spin_unlock_irq(&dev->event_lock); |
9c787942 | 3919 | } |
5bb61643 | 3920 | |
975d568a CW |
3921 | if (crtc->primary->fb) { |
3922 | mutex_lock(&dev->struct_mutex); | |
3923 | intel_finish_fb(crtc->primary->fb); | |
3924 | mutex_unlock(&dev->struct_mutex); | |
3925 | } | |
e6c3a2a6 CW |
3926 | } |
3927 | ||
e615efe4 ED |
3928 | /* Program iCLKIP clock to the desired frequency */ |
3929 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
3930 | { | |
3931 | struct drm_device *dev = crtc->dev; | |
3932 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 3933 | int clock = to_intel_crtc(crtc)->config->base.adjusted_mode.crtc_clock; |
e615efe4 ED |
3934 | u32 divsel, phaseinc, auxdiv, phasedir = 0; |
3935 | u32 temp; | |
3936 | ||
a580516d | 3937 | mutex_lock(&dev_priv->sb_lock); |
09153000 | 3938 | |
e615efe4 ED |
3939 | /* It is necessary to ungate the pixclk gate prior to programming |
3940 | * the divisors, and gate it back when it is done. | |
3941 | */ | |
3942 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
3943 | ||
3944 | /* Disable SSCCTL */ | |
3945 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
988d6ee8 PZ |
3946 | intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) | |
3947 | SBI_SSCCTL_DISABLE, | |
3948 | SBI_ICLK); | |
e615efe4 ED |
3949 | |
3950 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
12d7ceed | 3951 | if (clock == 20000) { |
e615efe4 ED |
3952 | auxdiv = 1; |
3953 | divsel = 0x41; | |
3954 | phaseinc = 0x20; | |
3955 | } else { | |
3956 | /* The iCLK virtual clock root frequency is in MHz, | |
241bfc38 DL |
3957 | * but the adjusted_mode->crtc_clock in in KHz. To get the |
3958 | * divisors, it is necessary to divide one by another, so we | |
e615efe4 ED |
3959 | * convert the virtual clock precision to KHz here for higher |
3960 | * precision. | |
3961 | */ | |
3962 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
3963 | u32 iclk_pi_range = 64; | |
3964 | u32 desired_divisor, msb_divisor_value, pi_value; | |
3965 | ||
12d7ceed | 3966 | desired_divisor = (iclk_virtual_root_freq / clock); |
e615efe4 ED |
3967 | msb_divisor_value = desired_divisor / iclk_pi_range; |
3968 | pi_value = desired_divisor % iclk_pi_range; | |
3969 | ||
3970 | auxdiv = 0; | |
3971 | divsel = msb_divisor_value - 2; | |
3972 | phaseinc = pi_value; | |
3973 | } | |
3974 | ||
3975 | /* This should not happen with any sane values */ | |
3976 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
3977 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
3978 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
3979 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
3980 | ||
3981 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
12d7ceed | 3982 | clock, |
e615efe4 ED |
3983 | auxdiv, |
3984 | divsel, | |
3985 | phasedir, | |
3986 | phaseinc); | |
3987 | ||
3988 | /* Program SSCDIVINTPHASE6 */ | |
988d6ee8 | 3989 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK); |
e615efe4 ED |
3990 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; |
3991 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
3992 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
3993 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
3994 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
3995 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
988d6ee8 | 3996 | intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK); |
e615efe4 ED |
3997 | |
3998 | /* Program SSCAUXDIV */ | |
988d6ee8 | 3999 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK); |
e615efe4 ED |
4000 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); |
4001 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
988d6ee8 | 4002 | intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK); |
e615efe4 ED |
4003 | |
4004 | /* Enable modulator and associated divider */ | |
988d6ee8 | 4005 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK); |
e615efe4 | 4006 | temp &= ~SBI_SSCCTL_DISABLE; |
988d6ee8 | 4007 | intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK); |
e615efe4 ED |
4008 | |
4009 | /* Wait for initialization time */ | |
4010 | udelay(24); | |
4011 | ||
4012 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
09153000 | 4013 | |
a580516d | 4014 | mutex_unlock(&dev_priv->sb_lock); |
e615efe4 ED |
4015 | } |
4016 | ||
275f01b2 DV |
4017 | static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc, |
4018 | enum pipe pch_transcoder) | |
4019 | { | |
4020 | struct drm_device *dev = crtc->base.dev; | |
4021 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 4022 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
275f01b2 DV |
4023 | |
4024 | I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder), | |
4025 | I915_READ(HTOTAL(cpu_transcoder))); | |
4026 | I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder), | |
4027 | I915_READ(HBLANK(cpu_transcoder))); | |
4028 | I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder), | |
4029 | I915_READ(HSYNC(cpu_transcoder))); | |
4030 | ||
4031 | I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder), | |
4032 | I915_READ(VTOTAL(cpu_transcoder))); | |
4033 | I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder), | |
4034 | I915_READ(VBLANK(cpu_transcoder))); | |
4035 | I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder), | |
4036 | I915_READ(VSYNC(cpu_transcoder))); | |
4037 | I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder), | |
4038 | I915_READ(VSYNCSHIFT(cpu_transcoder))); | |
4039 | } | |
4040 | ||
003632d9 | 4041 | static void cpt_set_fdi_bc_bifurcation(struct drm_device *dev, bool enable) |
1fbc0d78 DV |
4042 | { |
4043 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4044 | uint32_t temp; | |
4045 | ||
4046 | temp = I915_READ(SOUTH_CHICKEN1); | |
003632d9 | 4047 | if (!!(temp & FDI_BC_BIFURCATION_SELECT) == enable) |
1fbc0d78 DV |
4048 | return; |
4049 | ||
4050 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); | |
4051 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
4052 | ||
003632d9 ACO |
4053 | temp &= ~FDI_BC_BIFURCATION_SELECT; |
4054 | if (enable) | |
4055 | temp |= FDI_BC_BIFURCATION_SELECT; | |
4056 | ||
4057 | DRM_DEBUG_KMS("%sabling fdi C rx\n", enable ? "en" : "dis"); | |
1fbc0d78 DV |
4058 | I915_WRITE(SOUTH_CHICKEN1, temp); |
4059 | POSTING_READ(SOUTH_CHICKEN1); | |
4060 | } | |
4061 | ||
4062 | static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc) | |
4063 | { | |
4064 | struct drm_device *dev = intel_crtc->base.dev; | |
1fbc0d78 DV |
4065 | |
4066 | switch (intel_crtc->pipe) { | |
4067 | case PIPE_A: | |
4068 | break; | |
4069 | case PIPE_B: | |
6e3c9717 | 4070 | if (intel_crtc->config->fdi_lanes > 2) |
003632d9 | 4071 | cpt_set_fdi_bc_bifurcation(dev, false); |
1fbc0d78 | 4072 | else |
003632d9 | 4073 | cpt_set_fdi_bc_bifurcation(dev, true); |
1fbc0d78 DV |
4074 | |
4075 | break; | |
4076 | case PIPE_C: | |
003632d9 | 4077 | cpt_set_fdi_bc_bifurcation(dev, true); |
1fbc0d78 DV |
4078 | |
4079 | break; | |
4080 | default: | |
4081 | BUG(); | |
4082 | } | |
4083 | } | |
4084 | ||
f67a559d JB |
4085 | /* |
4086 | * Enable PCH resources required for PCH ports: | |
4087 | * - PCH PLLs | |
4088 | * - FDI training & RX/TX | |
4089 | * - update transcoder timings | |
4090 | * - DP transcoding bits | |
4091 | * - transcoder | |
4092 | */ | |
4093 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
4094 | { |
4095 | struct drm_device *dev = crtc->dev; | |
4096 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4097 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4098 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 4099 | u32 reg, temp; |
2c07245f | 4100 | |
ab9412ba | 4101 | assert_pch_transcoder_disabled(dev_priv, pipe); |
e7e164db | 4102 | |
1fbc0d78 DV |
4103 | if (IS_IVYBRIDGE(dev)) |
4104 | ivybridge_update_fdi_bc_bifurcation(intel_crtc); | |
4105 | ||
cd986abb DV |
4106 | /* Write the TU size bits before fdi link training, so that error |
4107 | * detection works. */ | |
4108 | I915_WRITE(FDI_RX_TUSIZE1(pipe), | |
4109 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
4110 | ||
c98e9dcf | 4111 | /* For PCH output, training FDI link */ |
674cf967 | 4112 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 4113 | |
3ad8a208 DV |
4114 | /* We need to program the right clock selection before writing the pixel |
4115 | * mutliplier into the DPLL. */ | |
303b81e0 | 4116 | if (HAS_PCH_CPT(dev)) { |
ee7b9f93 | 4117 | u32 sel; |
4b645f14 | 4118 | |
c98e9dcf | 4119 | temp = I915_READ(PCH_DPLL_SEL); |
11887397 DV |
4120 | temp |= TRANS_DPLL_ENABLE(pipe); |
4121 | sel = TRANS_DPLLB_SEL(pipe); | |
6e3c9717 | 4122 | if (intel_crtc->config->shared_dpll == DPLL_ID_PCH_PLL_B) |
ee7b9f93 JB |
4123 | temp |= sel; |
4124 | else | |
4125 | temp &= ~sel; | |
c98e9dcf | 4126 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 4127 | } |
5eddb70b | 4128 | |
3ad8a208 DV |
4129 | /* XXX: pch pll's can be enabled any time before we enable the PCH |
4130 | * transcoder, and we actually should do this to not upset any PCH | |
4131 | * transcoder that already use the clock when we share it. | |
4132 | * | |
4133 | * Note that enable_shared_dpll tries to do the right thing, but | |
4134 | * get_shared_dpll unconditionally resets the pll - we need that to have | |
4135 | * the right LVDS enable sequence. */ | |
85b3894f | 4136 | intel_enable_shared_dpll(intel_crtc); |
3ad8a208 | 4137 | |
d9b6cb56 JB |
4138 | /* set transcoder timing, panel must allow it */ |
4139 | assert_panel_unlocked(dev_priv, pipe); | |
275f01b2 | 4140 | ironlake_pch_transcoder_set_timings(intel_crtc, pipe); |
8db9d77b | 4141 | |
303b81e0 | 4142 | intel_fdi_normal_train(crtc); |
5e84e1a4 | 4143 | |
c98e9dcf | 4144 | /* For PCH DP, enable TRANS_DP_CTL */ |
6e3c9717 | 4145 | if (HAS_PCH_CPT(dev) && intel_crtc->config->has_dp_encoder) { |
dfd07d72 | 4146 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5; |
5eddb70b CW |
4147 | reg = TRANS_DP_CTL(pipe); |
4148 | temp = I915_READ(reg); | |
4149 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
4150 | TRANS_DP_SYNC_MASK | |
4151 | TRANS_DP_BPC_MASK); | |
e3ef4479 | 4152 | temp |= TRANS_DP_OUTPUT_ENABLE; |
9325c9f0 | 4153 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
4154 | |
4155 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 4156 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 4157 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 4158 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
4159 | |
4160 | switch (intel_trans_dp_port_sel(crtc)) { | |
4161 | case PCH_DP_B: | |
5eddb70b | 4162 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
4163 | break; |
4164 | case PCH_DP_C: | |
5eddb70b | 4165 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
4166 | break; |
4167 | case PCH_DP_D: | |
5eddb70b | 4168 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
4169 | break; |
4170 | default: | |
e95d41e1 | 4171 | BUG(); |
32f9d658 | 4172 | } |
2c07245f | 4173 | |
5eddb70b | 4174 | I915_WRITE(reg, temp); |
6be4a607 | 4175 | } |
b52eb4dc | 4176 | |
b8a4f404 | 4177 | ironlake_enable_pch_transcoder(dev_priv, pipe); |
f67a559d JB |
4178 | } |
4179 | ||
1507e5bd PZ |
4180 | static void lpt_pch_enable(struct drm_crtc *crtc) |
4181 | { | |
4182 | struct drm_device *dev = crtc->dev; | |
4183 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4184 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6e3c9717 | 4185 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
1507e5bd | 4186 | |
ab9412ba | 4187 | assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A); |
1507e5bd | 4188 | |
8c52b5e8 | 4189 | lpt_program_iclkip(crtc); |
1507e5bd | 4190 | |
0540e488 | 4191 | /* Set transcoder timing. */ |
275f01b2 | 4192 | ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A); |
1507e5bd | 4193 | |
937bb610 | 4194 | lpt_enable_pch_transcoder(dev_priv, cpu_transcoder); |
f67a559d JB |
4195 | } |
4196 | ||
190f68c5 ACO |
4197 | struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc, |
4198 | struct intel_crtc_state *crtc_state) | |
ee7b9f93 | 4199 | { |
e2b78267 | 4200 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; |
8bd31e67 | 4201 | struct intel_shared_dpll *pll; |
de419ab6 | 4202 | struct intel_shared_dpll_config *shared_dpll; |
e2b78267 | 4203 | enum intel_dpll_id i; |
ee7b9f93 | 4204 | |
de419ab6 ML |
4205 | shared_dpll = intel_atomic_get_shared_dpll_state(crtc_state->base.state); |
4206 | ||
98b6bd99 DV |
4207 | if (HAS_PCH_IBX(dev_priv->dev)) { |
4208 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
d94ab068 | 4209 | i = (enum intel_dpll_id) crtc->pipe; |
e72f9fbf | 4210 | pll = &dev_priv->shared_dplls[i]; |
98b6bd99 | 4211 | |
46edb027 DV |
4212 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n", |
4213 | crtc->base.base.id, pll->name); | |
98b6bd99 | 4214 | |
de419ab6 | 4215 | WARN_ON(shared_dpll[i].crtc_mask); |
f2a69f44 | 4216 | |
98b6bd99 DV |
4217 | goto found; |
4218 | } | |
4219 | ||
bcddf610 S |
4220 | if (IS_BROXTON(dev_priv->dev)) { |
4221 | /* PLL is attached to port in bxt */ | |
4222 | struct intel_encoder *encoder; | |
4223 | struct intel_digital_port *intel_dig_port; | |
4224 | ||
4225 | encoder = intel_ddi_get_crtc_new_encoder(crtc_state); | |
4226 | if (WARN_ON(!encoder)) | |
4227 | return NULL; | |
4228 | ||
4229 | intel_dig_port = enc_to_dig_port(&encoder->base); | |
4230 | /* 1:1 mapping between ports and PLLs */ | |
4231 | i = (enum intel_dpll_id)intel_dig_port->port; | |
4232 | pll = &dev_priv->shared_dplls[i]; | |
4233 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n", | |
4234 | crtc->base.base.id, pll->name); | |
de419ab6 | 4235 | WARN_ON(shared_dpll[i].crtc_mask); |
bcddf610 S |
4236 | |
4237 | goto found; | |
4238 | } | |
4239 | ||
e72f9fbf DV |
4240 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
4241 | pll = &dev_priv->shared_dplls[i]; | |
ee7b9f93 JB |
4242 | |
4243 | /* Only want to check enabled timings first */ | |
de419ab6 | 4244 | if (shared_dpll[i].crtc_mask == 0) |
ee7b9f93 JB |
4245 | continue; |
4246 | ||
190f68c5 | 4247 | if (memcmp(&crtc_state->dpll_hw_state, |
de419ab6 ML |
4248 | &shared_dpll[i].hw_state, |
4249 | sizeof(crtc_state->dpll_hw_state)) == 0) { | |
8bd31e67 | 4250 | DRM_DEBUG_KMS("CRTC:%d sharing existing %s (crtc mask 0x%08x, ative %d)\n", |
1e6f2ddc | 4251 | crtc->base.base.id, pll->name, |
de419ab6 | 4252 | shared_dpll[i].crtc_mask, |
8bd31e67 | 4253 | pll->active); |
ee7b9f93 JB |
4254 | goto found; |
4255 | } | |
4256 | } | |
4257 | ||
4258 | /* Ok no matching timings, maybe there's a free one? */ | |
e72f9fbf DV |
4259 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
4260 | pll = &dev_priv->shared_dplls[i]; | |
de419ab6 | 4261 | if (shared_dpll[i].crtc_mask == 0) { |
46edb027 DV |
4262 | DRM_DEBUG_KMS("CRTC:%d allocated %s\n", |
4263 | crtc->base.base.id, pll->name); | |
ee7b9f93 JB |
4264 | goto found; |
4265 | } | |
4266 | } | |
4267 | ||
4268 | return NULL; | |
4269 | ||
4270 | found: | |
de419ab6 ML |
4271 | if (shared_dpll[i].crtc_mask == 0) |
4272 | shared_dpll[i].hw_state = | |
4273 | crtc_state->dpll_hw_state; | |
f2a69f44 | 4274 | |
190f68c5 | 4275 | crtc_state->shared_dpll = i; |
46edb027 DV |
4276 | DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name, |
4277 | pipe_name(crtc->pipe)); | |
ee7b9f93 | 4278 | |
de419ab6 | 4279 | shared_dpll[i].crtc_mask |= 1 << crtc->pipe; |
e04c7350 | 4280 | |
ee7b9f93 JB |
4281 | return pll; |
4282 | } | |
4283 | ||
de419ab6 | 4284 | static void intel_shared_dpll_commit(struct drm_atomic_state *state) |
8bd31e67 | 4285 | { |
de419ab6 ML |
4286 | struct drm_i915_private *dev_priv = to_i915(state->dev); |
4287 | struct intel_shared_dpll_config *shared_dpll; | |
8bd31e67 ACO |
4288 | struct intel_shared_dpll *pll; |
4289 | enum intel_dpll_id i; | |
4290 | ||
de419ab6 ML |
4291 | if (!to_intel_atomic_state(state)->dpll_set) |
4292 | return; | |
8bd31e67 | 4293 | |
de419ab6 | 4294 | shared_dpll = to_intel_atomic_state(state)->shared_dpll; |
8bd31e67 ACO |
4295 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
4296 | pll = &dev_priv->shared_dplls[i]; | |
de419ab6 | 4297 | pll->config = shared_dpll[i]; |
8bd31e67 ACO |
4298 | } |
4299 | } | |
4300 | ||
a1520318 | 4301 | static void cpt_verify_modeset(struct drm_device *dev, int pipe) |
d4270e57 JB |
4302 | { |
4303 | struct drm_i915_private *dev_priv = dev->dev_private; | |
23670b32 | 4304 | int dslreg = PIPEDSL(pipe); |
d4270e57 JB |
4305 | u32 temp; |
4306 | ||
4307 | temp = I915_READ(dslreg); | |
4308 | udelay(500); | |
4309 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
d4270e57 | 4310 | if (wait_for(I915_READ(dslreg) != temp, 5)) |
84f44ce7 | 4311 | DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe)); |
d4270e57 JB |
4312 | } |
4313 | } | |
4314 | ||
86adf9d7 ML |
4315 | static int |
4316 | skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach, | |
4317 | unsigned scaler_user, int *scaler_id, unsigned int rotation, | |
4318 | int src_w, int src_h, int dst_w, int dst_h) | |
a1b2278e | 4319 | { |
86adf9d7 ML |
4320 | struct intel_crtc_scaler_state *scaler_state = |
4321 | &crtc_state->scaler_state; | |
4322 | struct intel_crtc *intel_crtc = | |
4323 | to_intel_crtc(crtc_state->base.crtc); | |
a1b2278e | 4324 | int need_scaling; |
6156a456 CK |
4325 | |
4326 | need_scaling = intel_rotation_90_or_270(rotation) ? | |
4327 | (src_h != dst_w || src_w != dst_h): | |
4328 | (src_w != dst_w || src_h != dst_h); | |
a1b2278e CK |
4329 | |
4330 | /* | |
4331 | * if plane is being disabled or scaler is no more required or force detach | |
4332 | * - free scaler binded to this plane/crtc | |
4333 | * - in order to do this, update crtc->scaler_usage | |
4334 | * | |
4335 | * Here scaler state in crtc_state is set free so that | |
4336 | * scaler can be assigned to other user. Actual register | |
4337 | * update to free the scaler is done in plane/panel-fit programming. | |
4338 | * For this purpose crtc/plane_state->scaler_id isn't reset here. | |
4339 | */ | |
86adf9d7 | 4340 | if (force_detach || !need_scaling) { |
a1b2278e | 4341 | if (*scaler_id >= 0) { |
86adf9d7 | 4342 | scaler_state->scaler_users &= ~(1 << scaler_user); |
a1b2278e CK |
4343 | scaler_state->scalers[*scaler_id].in_use = 0; |
4344 | ||
86adf9d7 ML |
4345 | DRM_DEBUG_KMS("scaler_user index %u.%u: " |
4346 | "Staged freeing scaler id %d scaler_users = 0x%x\n", | |
4347 | intel_crtc->pipe, scaler_user, *scaler_id, | |
a1b2278e CK |
4348 | scaler_state->scaler_users); |
4349 | *scaler_id = -1; | |
4350 | } | |
4351 | return 0; | |
4352 | } | |
4353 | ||
4354 | /* range checks */ | |
4355 | if (src_w < SKL_MIN_SRC_W || src_h < SKL_MIN_SRC_H || | |
4356 | dst_w < SKL_MIN_DST_W || dst_h < SKL_MIN_DST_H || | |
4357 | ||
4358 | src_w > SKL_MAX_SRC_W || src_h > SKL_MAX_SRC_H || | |
4359 | dst_w > SKL_MAX_DST_W || dst_h > SKL_MAX_DST_H) { | |
86adf9d7 | 4360 | DRM_DEBUG_KMS("scaler_user index %u.%u: src %ux%u dst %ux%u " |
a1b2278e | 4361 | "size is out of scaler range\n", |
86adf9d7 | 4362 | intel_crtc->pipe, scaler_user, src_w, src_h, dst_w, dst_h); |
a1b2278e CK |
4363 | return -EINVAL; |
4364 | } | |
4365 | ||
86adf9d7 ML |
4366 | /* mark this plane as a scaler user in crtc_state */ |
4367 | scaler_state->scaler_users |= (1 << scaler_user); | |
4368 | DRM_DEBUG_KMS("scaler_user index %u.%u: " | |
4369 | "staged scaling request for %ux%u->%ux%u scaler_users = 0x%x\n", | |
4370 | intel_crtc->pipe, scaler_user, src_w, src_h, dst_w, dst_h, | |
4371 | scaler_state->scaler_users); | |
4372 | ||
4373 | return 0; | |
4374 | } | |
4375 | ||
4376 | /** | |
4377 | * skl_update_scaler_crtc - Stages update to scaler state for a given crtc. | |
4378 | * | |
4379 | * @state: crtc's scaler state | |
86adf9d7 ML |
4380 | * |
4381 | * Return | |
4382 | * 0 - scaler_usage updated successfully | |
4383 | * error - requested scaling cannot be supported or other error condition | |
4384 | */ | |
e435d6e5 | 4385 | int skl_update_scaler_crtc(struct intel_crtc_state *state) |
86adf9d7 ML |
4386 | { |
4387 | struct intel_crtc *intel_crtc = to_intel_crtc(state->base.crtc); | |
4388 | struct drm_display_mode *adjusted_mode = | |
4389 | &state->base.adjusted_mode; | |
4390 | ||
4391 | DRM_DEBUG_KMS("Updating scaler for [CRTC:%i] scaler_user index %u.%u\n", | |
4392 | intel_crtc->base.base.id, intel_crtc->pipe, SKL_CRTC_INDEX); | |
4393 | ||
e435d6e5 | 4394 | return skl_update_scaler(state, !state->base.active, SKL_CRTC_INDEX, |
86adf9d7 ML |
4395 | &state->scaler_state.scaler_id, DRM_ROTATE_0, |
4396 | state->pipe_src_w, state->pipe_src_h, | |
8c6cda29 | 4397 | adjusted_mode->hdisplay, adjusted_mode->vdisplay); |
86adf9d7 ML |
4398 | } |
4399 | ||
4400 | /** | |
4401 | * skl_update_scaler_plane - Stages update to scaler state for a given plane. | |
4402 | * | |
4403 | * @state: crtc's scaler state | |
86adf9d7 ML |
4404 | * @plane_state: atomic plane state to update |
4405 | * | |
4406 | * Return | |
4407 | * 0 - scaler_usage updated successfully | |
4408 | * error - requested scaling cannot be supported or other error condition | |
4409 | */ | |
da20eabd ML |
4410 | static int skl_update_scaler_plane(struct intel_crtc_state *crtc_state, |
4411 | struct intel_plane_state *plane_state) | |
86adf9d7 ML |
4412 | { |
4413 | ||
4414 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); | |
da20eabd ML |
4415 | struct intel_plane *intel_plane = |
4416 | to_intel_plane(plane_state->base.plane); | |
86adf9d7 ML |
4417 | struct drm_framebuffer *fb = plane_state->base.fb; |
4418 | int ret; | |
4419 | ||
4420 | bool force_detach = !fb || !plane_state->visible; | |
4421 | ||
4422 | DRM_DEBUG_KMS("Updating scaler for [PLANE:%d] scaler_user index %u.%u\n", | |
4423 | intel_plane->base.base.id, intel_crtc->pipe, | |
4424 | drm_plane_index(&intel_plane->base)); | |
4425 | ||
4426 | ret = skl_update_scaler(crtc_state, force_detach, | |
4427 | drm_plane_index(&intel_plane->base), | |
4428 | &plane_state->scaler_id, | |
4429 | plane_state->base.rotation, | |
4430 | drm_rect_width(&plane_state->src) >> 16, | |
4431 | drm_rect_height(&plane_state->src) >> 16, | |
4432 | drm_rect_width(&plane_state->dst), | |
4433 | drm_rect_height(&plane_state->dst)); | |
4434 | ||
4435 | if (ret || plane_state->scaler_id < 0) | |
4436 | return ret; | |
4437 | ||
a1b2278e | 4438 | /* check colorkey */ |
818ed961 | 4439 | if (plane_state->ckey.flags != I915_SET_COLORKEY_NONE) { |
86adf9d7 | 4440 | DRM_DEBUG_KMS("[PLANE:%d] scaling with color key not allowed", |
818ed961 | 4441 | intel_plane->base.base.id); |
a1b2278e CK |
4442 | return -EINVAL; |
4443 | } | |
4444 | ||
4445 | /* Check src format */ | |
86adf9d7 ML |
4446 | switch (fb->pixel_format) { |
4447 | case DRM_FORMAT_RGB565: | |
4448 | case DRM_FORMAT_XBGR8888: | |
4449 | case DRM_FORMAT_XRGB8888: | |
4450 | case DRM_FORMAT_ABGR8888: | |
4451 | case DRM_FORMAT_ARGB8888: | |
4452 | case DRM_FORMAT_XRGB2101010: | |
4453 | case DRM_FORMAT_XBGR2101010: | |
4454 | case DRM_FORMAT_YUYV: | |
4455 | case DRM_FORMAT_YVYU: | |
4456 | case DRM_FORMAT_UYVY: | |
4457 | case DRM_FORMAT_VYUY: | |
4458 | break; | |
4459 | default: | |
4460 | DRM_DEBUG_KMS("[PLANE:%d] FB:%d unsupported scaling format 0x%x\n", | |
4461 | intel_plane->base.base.id, fb->base.id, fb->pixel_format); | |
4462 | return -EINVAL; | |
a1b2278e CK |
4463 | } |
4464 | ||
a1b2278e CK |
4465 | return 0; |
4466 | } | |
4467 | ||
e435d6e5 ML |
4468 | static void skylake_scaler_disable(struct intel_crtc *crtc) |
4469 | { | |
4470 | int i; | |
4471 | ||
4472 | for (i = 0; i < crtc->num_scalers; i++) | |
4473 | skl_detach_scaler(crtc, i); | |
4474 | } | |
4475 | ||
4476 | static void skylake_pfit_enable(struct intel_crtc *crtc) | |
bd2e244f JB |
4477 | { |
4478 | struct drm_device *dev = crtc->base.dev; | |
4479 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4480 | int pipe = crtc->pipe; | |
a1b2278e CK |
4481 | struct intel_crtc_scaler_state *scaler_state = |
4482 | &crtc->config->scaler_state; | |
4483 | ||
4484 | DRM_DEBUG_KMS("for crtc_state = %p\n", crtc->config); | |
4485 | ||
6e3c9717 | 4486 | if (crtc->config->pch_pfit.enabled) { |
a1b2278e CK |
4487 | int id; |
4488 | ||
4489 | if (WARN_ON(crtc->config->scaler_state.scaler_id < 0)) { | |
4490 | DRM_ERROR("Requesting pfit without getting a scaler first\n"); | |
4491 | return; | |
4492 | } | |
4493 | ||
4494 | id = scaler_state->scaler_id; | |
4495 | I915_WRITE(SKL_PS_CTRL(pipe, id), PS_SCALER_EN | | |
4496 | PS_FILTER_MEDIUM | scaler_state->scalers[id].mode); | |
4497 | I915_WRITE(SKL_PS_WIN_POS(pipe, id), crtc->config->pch_pfit.pos); | |
4498 | I915_WRITE(SKL_PS_WIN_SZ(pipe, id), crtc->config->pch_pfit.size); | |
4499 | ||
4500 | DRM_DEBUG_KMS("for crtc_state = %p scaler_id = %d\n", crtc->config, id); | |
bd2e244f JB |
4501 | } |
4502 | } | |
4503 | ||
b074cec8 JB |
4504 | static void ironlake_pfit_enable(struct intel_crtc *crtc) |
4505 | { | |
4506 | struct drm_device *dev = crtc->base.dev; | |
4507 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4508 | int pipe = crtc->pipe; | |
4509 | ||
6e3c9717 | 4510 | if (crtc->config->pch_pfit.enabled) { |
b074cec8 JB |
4511 | /* Force use of hard-coded filter coefficients |
4512 | * as some pre-programmed values are broken, | |
4513 | * e.g. x201. | |
4514 | */ | |
4515 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) | |
4516 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 | | |
4517 | PF_PIPE_SEL_IVB(pipe)); | |
4518 | else | |
4519 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); | |
6e3c9717 ACO |
4520 | I915_WRITE(PF_WIN_POS(pipe), crtc->config->pch_pfit.pos); |
4521 | I915_WRITE(PF_WIN_SZ(pipe), crtc->config->pch_pfit.size); | |
d4270e57 JB |
4522 | } |
4523 | } | |
4524 | ||
20bc8673 | 4525 | void hsw_enable_ips(struct intel_crtc *crtc) |
d77e4531 | 4526 | { |
cea165c3 VS |
4527 | struct drm_device *dev = crtc->base.dev; |
4528 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d77e4531 | 4529 | |
6e3c9717 | 4530 | if (!crtc->config->ips_enabled) |
d77e4531 PZ |
4531 | return; |
4532 | ||
cea165c3 VS |
4533 | /* We can only enable IPS after we enable a plane and wait for a vblank */ |
4534 | intel_wait_for_vblank(dev, crtc->pipe); | |
4535 | ||
d77e4531 | 4536 | assert_plane_enabled(dev_priv, crtc->plane); |
cea165c3 | 4537 | if (IS_BROADWELL(dev)) { |
2a114cc1 BW |
4538 | mutex_lock(&dev_priv->rps.hw_lock); |
4539 | WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0xc0000000)); | |
4540 | mutex_unlock(&dev_priv->rps.hw_lock); | |
4541 | /* Quoting Art Runyan: "its not safe to expect any particular | |
4542 | * value in IPS_CTL bit 31 after enabling IPS through the | |
e59150dc JB |
4543 | * mailbox." Moreover, the mailbox may return a bogus state, |
4544 | * so we need to just enable it and continue on. | |
2a114cc1 BW |
4545 | */ |
4546 | } else { | |
4547 | I915_WRITE(IPS_CTL, IPS_ENABLE); | |
4548 | /* The bit only becomes 1 in the next vblank, so this wait here | |
4549 | * is essentially intel_wait_for_vblank. If we don't have this | |
4550 | * and don't wait for vblanks until the end of crtc_enable, then | |
4551 | * the HW state readout code will complain that the expected | |
4552 | * IPS_CTL value is not the one we read. */ | |
4553 | if (wait_for(I915_READ_NOTRACE(IPS_CTL) & IPS_ENABLE, 50)) | |
4554 | DRM_ERROR("Timed out waiting for IPS enable\n"); | |
4555 | } | |
d77e4531 PZ |
4556 | } |
4557 | ||
20bc8673 | 4558 | void hsw_disable_ips(struct intel_crtc *crtc) |
d77e4531 PZ |
4559 | { |
4560 | struct drm_device *dev = crtc->base.dev; | |
4561 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4562 | ||
6e3c9717 | 4563 | if (!crtc->config->ips_enabled) |
d77e4531 PZ |
4564 | return; |
4565 | ||
4566 | assert_plane_enabled(dev_priv, crtc->plane); | |
23d0b130 | 4567 | if (IS_BROADWELL(dev)) { |
2a114cc1 BW |
4568 | mutex_lock(&dev_priv->rps.hw_lock); |
4569 | WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0)); | |
4570 | mutex_unlock(&dev_priv->rps.hw_lock); | |
23d0b130 BW |
4571 | /* wait for pcode to finish disabling IPS, which may take up to 42ms */ |
4572 | if (wait_for((I915_READ(IPS_CTL) & IPS_ENABLE) == 0, 42)) | |
4573 | DRM_ERROR("Timed out waiting for IPS disable\n"); | |
e59150dc | 4574 | } else { |
2a114cc1 | 4575 | I915_WRITE(IPS_CTL, 0); |
e59150dc JB |
4576 | POSTING_READ(IPS_CTL); |
4577 | } | |
d77e4531 PZ |
4578 | |
4579 | /* We need to wait for a vblank before we can disable the plane. */ | |
4580 | intel_wait_for_vblank(dev, crtc->pipe); | |
4581 | } | |
4582 | ||
4583 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ | |
4584 | static void intel_crtc_load_lut(struct drm_crtc *crtc) | |
4585 | { | |
4586 | struct drm_device *dev = crtc->dev; | |
4587 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4588 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4589 | enum pipe pipe = intel_crtc->pipe; | |
4590 | int palreg = PALETTE(pipe); | |
4591 | int i; | |
4592 | bool reenable_ips = false; | |
4593 | ||
4594 | /* The clocks have to be on to load the palette. */ | |
53d9f4e9 | 4595 | if (!crtc->state->active) |
d77e4531 PZ |
4596 | return; |
4597 | ||
50360403 | 4598 | if (HAS_GMCH_DISPLAY(dev_priv->dev)) { |
409ee761 | 4599 | if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DSI)) |
d77e4531 PZ |
4600 | assert_dsi_pll_enabled(dev_priv); |
4601 | else | |
4602 | assert_pll_enabled(dev_priv, pipe); | |
4603 | } | |
4604 | ||
4605 | /* use legacy palette for Ironlake */ | |
7a1db49a | 4606 | if (!HAS_GMCH_DISPLAY(dev)) |
d77e4531 PZ |
4607 | palreg = LGC_PALETTE(pipe); |
4608 | ||
4609 | /* Workaround : Do not read or write the pipe palette/gamma data while | |
4610 | * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled. | |
4611 | */ | |
6e3c9717 | 4612 | if (IS_HASWELL(dev) && intel_crtc->config->ips_enabled && |
d77e4531 PZ |
4613 | ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) == |
4614 | GAMMA_MODE_MODE_SPLIT)) { | |
4615 | hsw_disable_ips(intel_crtc); | |
4616 | reenable_ips = true; | |
4617 | } | |
4618 | ||
4619 | for (i = 0; i < 256; i++) { | |
4620 | I915_WRITE(palreg + 4 * i, | |
4621 | (intel_crtc->lut_r[i] << 16) | | |
4622 | (intel_crtc->lut_g[i] << 8) | | |
4623 | intel_crtc->lut_b[i]); | |
4624 | } | |
4625 | ||
4626 | if (reenable_ips) | |
4627 | hsw_enable_ips(intel_crtc); | |
4628 | } | |
4629 | ||
7cac945f | 4630 | static void intel_crtc_dpms_overlay_disable(struct intel_crtc *intel_crtc) |
d3eedb1a | 4631 | { |
7cac945f | 4632 | if (intel_crtc->overlay) { |
d3eedb1a VS |
4633 | struct drm_device *dev = intel_crtc->base.dev; |
4634 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4635 | ||
4636 | mutex_lock(&dev->struct_mutex); | |
4637 | dev_priv->mm.interruptible = false; | |
4638 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
4639 | dev_priv->mm.interruptible = true; | |
4640 | mutex_unlock(&dev->struct_mutex); | |
4641 | } | |
4642 | ||
4643 | /* Let userspace switch the overlay on again. In most cases userspace | |
4644 | * has to recompute where to put it anyway. | |
4645 | */ | |
4646 | } | |
4647 | ||
87d4300a ML |
4648 | /** |
4649 | * intel_post_enable_primary - Perform operations after enabling primary plane | |
4650 | * @crtc: the CRTC whose primary plane was just enabled | |
4651 | * | |
4652 | * Performs potentially sleeping operations that must be done after the primary | |
4653 | * plane is enabled, such as updating FBC and IPS. Note that this may be | |
4654 | * called due to an explicit primary plane update, or due to an implicit | |
4655 | * re-enable that is caused when a sprite plane is updated to no longer | |
4656 | * completely hide the primary plane. | |
4657 | */ | |
4658 | static void | |
4659 | intel_post_enable_primary(struct drm_crtc *crtc) | |
a5c4d7bc VS |
4660 | { |
4661 | struct drm_device *dev = crtc->dev; | |
87d4300a | 4662 | struct drm_i915_private *dev_priv = dev->dev_private; |
a5c4d7bc VS |
4663 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4664 | int pipe = intel_crtc->pipe; | |
a5c4d7bc | 4665 | |
87d4300a ML |
4666 | /* |
4667 | * BDW signals flip done immediately if the plane | |
4668 | * is disabled, even if the plane enable is already | |
4669 | * armed to occur at the next vblank :( | |
4670 | */ | |
4671 | if (IS_BROADWELL(dev)) | |
4672 | intel_wait_for_vblank(dev, pipe); | |
a5c4d7bc | 4673 | |
87d4300a ML |
4674 | /* |
4675 | * FIXME IPS should be fine as long as one plane is | |
4676 | * enabled, but in practice it seems to have problems | |
4677 | * when going from primary only to sprite only and vice | |
4678 | * versa. | |
4679 | */ | |
a5c4d7bc VS |
4680 | hsw_enable_ips(intel_crtc); |
4681 | ||
f99d7069 | 4682 | /* |
87d4300a ML |
4683 | * Gen2 reports pipe underruns whenever all planes are disabled. |
4684 | * So don't enable underrun reporting before at least some planes | |
4685 | * are enabled. | |
4686 | * FIXME: Need to fix the logic to work when we turn off all planes | |
4687 | * but leave the pipe running. | |
f99d7069 | 4688 | */ |
87d4300a ML |
4689 | if (IS_GEN2(dev)) |
4690 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); | |
4691 | ||
4692 | /* Underruns don't raise interrupts, so check manually. */ | |
4693 | if (HAS_GMCH_DISPLAY(dev)) | |
4694 | i9xx_check_fifo_underruns(dev_priv); | |
a5c4d7bc VS |
4695 | } |
4696 | ||
87d4300a ML |
4697 | /** |
4698 | * intel_pre_disable_primary - Perform operations before disabling primary plane | |
4699 | * @crtc: the CRTC whose primary plane is to be disabled | |
4700 | * | |
4701 | * Performs potentially sleeping operations that must be done before the | |
4702 | * primary plane is disabled, such as updating FBC and IPS. Note that this may | |
4703 | * be called due to an explicit primary plane update, or due to an implicit | |
4704 | * disable that is caused when a sprite plane completely hides the primary | |
4705 | * plane. | |
4706 | */ | |
4707 | static void | |
4708 | intel_pre_disable_primary(struct drm_crtc *crtc) | |
a5c4d7bc VS |
4709 | { |
4710 | struct drm_device *dev = crtc->dev; | |
4711 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4712 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4713 | int pipe = intel_crtc->pipe; | |
a5c4d7bc | 4714 | |
87d4300a ML |
4715 | /* |
4716 | * Gen2 reports pipe underruns whenever all planes are disabled. | |
4717 | * So diasble underrun reporting before all the planes get disabled. | |
4718 | * FIXME: Need to fix the logic to work when we turn off all planes | |
4719 | * but leave the pipe running. | |
4720 | */ | |
4721 | if (IS_GEN2(dev)) | |
4722 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); | |
a5c4d7bc | 4723 | |
87d4300a ML |
4724 | /* |
4725 | * Vblank time updates from the shadow to live plane control register | |
4726 | * are blocked if the memory self-refresh mode is active at that | |
4727 | * moment. So to make sure the plane gets truly disabled, disable | |
4728 | * first the self-refresh mode. The self-refresh enable bit in turn | |
4729 | * will be checked/applied by the HW only at the next frame start | |
4730 | * event which is after the vblank start event, so we need to have a | |
4731 | * wait-for-vblank between disabling the plane and the pipe. | |
4732 | */ | |
262cd2e1 | 4733 | if (HAS_GMCH_DISPLAY(dev)) { |
87d4300a | 4734 | intel_set_memory_cxsr(dev_priv, false); |
262cd2e1 VS |
4735 | dev_priv->wm.vlv.cxsr = false; |
4736 | intel_wait_for_vblank(dev, pipe); | |
4737 | } | |
87d4300a | 4738 | |
87d4300a ML |
4739 | /* |
4740 | * FIXME IPS should be fine as long as one plane is | |
4741 | * enabled, but in practice it seems to have problems | |
4742 | * when going from primary only to sprite only and vice | |
4743 | * versa. | |
4744 | */ | |
a5c4d7bc | 4745 | hsw_disable_ips(intel_crtc); |
87d4300a ML |
4746 | } |
4747 | ||
ac21b225 ML |
4748 | static void intel_post_plane_update(struct intel_crtc *crtc) |
4749 | { | |
4750 | struct intel_crtc_atomic_commit *atomic = &crtc->atomic; | |
4751 | struct drm_device *dev = crtc->base.dev; | |
7733b49b | 4752 | struct drm_i915_private *dev_priv = dev->dev_private; |
ac21b225 ML |
4753 | struct drm_plane *plane; |
4754 | ||
4755 | if (atomic->wait_vblank) | |
4756 | intel_wait_for_vblank(dev, crtc->pipe); | |
4757 | ||
4758 | intel_frontbuffer_flip(dev, atomic->fb_bits); | |
4759 | ||
852eb00d VS |
4760 | if (atomic->disable_cxsr) |
4761 | crtc->wm.cxsr_allowed = true; | |
4762 | ||
f015c551 VS |
4763 | if (crtc->atomic.update_wm_post) |
4764 | intel_update_watermarks(&crtc->base); | |
4765 | ||
c80ac854 | 4766 | if (atomic->update_fbc) |
7733b49b | 4767 | intel_fbc_update(dev_priv); |
ac21b225 ML |
4768 | |
4769 | if (atomic->post_enable_primary) | |
4770 | intel_post_enable_primary(&crtc->base); | |
4771 | ||
4772 | drm_for_each_plane_mask(plane, dev, atomic->update_sprite_watermarks) | |
4773 | intel_update_sprite_watermarks(plane, &crtc->base, | |
4774 | 0, 0, 0, false, false); | |
4775 | ||
4776 | memset(atomic, 0, sizeof(*atomic)); | |
4777 | } | |
4778 | ||
4779 | static void intel_pre_plane_update(struct intel_crtc *crtc) | |
4780 | { | |
4781 | struct drm_device *dev = crtc->base.dev; | |
eddfcbcd | 4782 | struct drm_i915_private *dev_priv = dev->dev_private; |
ac21b225 ML |
4783 | struct intel_crtc_atomic_commit *atomic = &crtc->atomic; |
4784 | struct drm_plane *p; | |
4785 | ||
4786 | /* Track fb's for any planes being disabled */ | |
ac21b225 ML |
4787 | drm_for_each_plane_mask(p, dev, atomic->disabled_planes) { |
4788 | struct intel_plane *plane = to_intel_plane(p); | |
ac21b225 ML |
4789 | |
4790 | mutex_lock(&dev->struct_mutex); | |
a9ff8714 VS |
4791 | i915_gem_track_fb(intel_fb_obj(plane->base.fb), NULL, |
4792 | plane->frontbuffer_bit); | |
ac21b225 ML |
4793 | mutex_unlock(&dev->struct_mutex); |
4794 | } | |
4795 | ||
4796 | if (atomic->wait_for_flips) | |
4797 | intel_crtc_wait_for_pending_flips(&crtc->base); | |
4798 | ||
c80ac854 | 4799 | if (atomic->disable_fbc) |
25ad93fd | 4800 | intel_fbc_disable_crtc(crtc); |
ac21b225 | 4801 | |
066cf55b RV |
4802 | if (crtc->atomic.disable_ips) |
4803 | hsw_disable_ips(crtc); | |
4804 | ||
ac21b225 ML |
4805 | if (atomic->pre_disable_primary) |
4806 | intel_pre_disable_primary(&crtc->base); | |
852eb00d VS |
4807 | |
4808 | if (atomic->disable_cxsr) { | |
4809 | crtc->wm.cxsr_allowed = false; | |
4810 | intel_set_memory_cxsr(dev_priv, false); | |
4811 | } | |
ac21b225 ML |
4812 | } |
4813 | ||
d032ffa0 | 4814 | static void intel_crtc_disable_planes(struct drm_crtc *crtc, unsigned plane_mask) |
87d4300a ML |
4815 | { |
4816 | struct drm_device *dev = crtc->dev; | |
4817 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
d032ffa0 | 4818 | struct drm_plane *p; |
87d4300a ML |
4819 | int pipe = intel_crtc->pipe; |
4820 | ||
7cac945f | 4821 | intel_crtc_dpms_overlay_disable(intel_crtc); |
27321ae8 | 4822 | |
d032ffa0 ML |
4823 | drm_for_each_plane_mask(p, dev, plane_mask) |
4824 | to_intel_plane(p)->disable_plane(p, crtc); | |
f98551ae | 4825 | |
f99d7069 DV |
4826 | /* |
4827 | * FIXME: Once we grow proper nuclear flip support out of this we need | |
4828 | * to compute the mask of flip planes precisely. For the time being | |
4829 | * consider this a flip to a NULL plane. | |
4830 | */ | |
4831 | intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_ALL_MASK(pipe)); | |
a5c4d7bc VS |
4832 | } |
4833 | ||
f67a559d JB |
4834 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
4835 | { | |
4836 | struct drm_device *dev = crtc->dev; | |
4837 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4838 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 4839 | struct intel_encoder *encoder; |
f67a559d | 4840 | int pipe = intel_crtc->pipe; |
f67a559d | 4841 | |
53d9f4e9 | 4842 | if (WARN_ON(intel_crtc->active)) |
f67a559d JB |
4843 | return; |
4844 | ||
6e3c9717 | 4845 | if (intel_crtc->config->has_pch_encoder) |
b14b1055 DV |
4846 | intel_prepare_shared_dpll(intel_crtc); |
4847 | ||
6e3c9717 | 4848 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 4849 | intel_dp_set_m_n(intel_crtc, M1_N1); |
29407aab DV |
4850 | |
4851 | intel_set_pipe_timings(intel_crtc); | |
4852 | ||
6e3c9717 | 4853 | if (intel_crtc->config->has_pch_encoder) { |
29407aab | 4854 | intel_cpu_transcoder_set_m_n(intel_crtc, |
6e3c9717 | 4855 | &intel_crtc->config->fdi_m_n, NULL); |
29407aab DV |
4856 | } |
4857 | ||
4858 | ironlake_set_pipeconf(crtc); | |
4859 | ||
f67a559d | 4860 | intel_crtc->active = true; |
8664281b | 4861 | |
a72e4c9f DV |
4862 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4863 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true); | |
8664281b | 4864 | |
f6736a1a | 4865 | for_each_encoder_on_crtc(dev, crtc, encoder) |
952735ee DV |
4866 | if (encoder->pre_enable) |
4867 | encoder->pre_enable(encoder); | |
f67a559d | 4868 | |
6e3c9717 | 4869 | if (intel_crtc->config->has_pch_encoder) { |
fff367c7 DV |
4870 | /* Note: FDI PLL enabling _must_ be done before we enable the |
4871 | * cpu pipes, hence this is separate from all the other fdi/pch | |
4872 | * enabling. */ | |
88cefb6c | 4873 | ironlake_fdi_pll_enable(intel_crtc); |
46b6f814 DV |
4874 | } else { |
4875 | assert_fdi_tx_disabled(dev_priv, pipe); | |
4876 | assert_fdi_rx_disabled(dev_priv, pipe); | |
4877 | } | |
f67a559d | 4878 | |
b074cec8 | 4879 | ironlake_pfit_enable(intel_crtc); |
f67a559d | 4880 | |
9c54c0dd JB |
4881 | /* |
4882 | * On ILK+ LUT must be loaded before the pipe is running but with | |
4883 | * clocks enabled | |
4884 | */ | |
4885 | intel_crtc_load_lut(crtc); | |
4886 | ||
f37fcc2a | 4887 | intel_update_watermarks(crtc); |
e1fdc473 | 4888 | intel_enable_pipe(intel_crtc); |
f67a559d | 4889 | |
6e3c9717 | 4890 | if (intel_crtc->config->has_pch_encoder) |
f67a559d | 4891 | ironlake_pch_enable(crtc); |
c98e9dcf | 4892 | |
f9b61ff6 DV |
4893 | assert_vblank_disabled(crtc); |
4894 | drm_crtc_vblank_on(crtc); | |
4895 | ||
fa5c73b1 DV |
4896 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4897 | encoder->enable(encoder); | |
61b77ddd DV |
4898 | |
4899 | if (HAS_PCH_CPT(dev)) | |
a1520318 | 4900 | cpt_verify_modeset(dev, intel_crtc->pipe); |
6be4a607 JB |
4901 | } |
4902 | ||
42db64ef PZ |
4903 | /* IPS only exists on ULT machines and is tied to pipe A. */ |
4904 | static bool hsw_crtc_supports_ips(struct intel_crtc *crtc) | |
4905 | { | |
f5adf94e | 4906 | return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A; |
42db64ef PZ |
4907 | } |
4908 | ||
4f771f10 PZ |
4909 | static void haswell_crtc_enable(struct drm_crtc *crtc) |
4910 | { | |
4911 | struct drm_device *dev = crtc->dev; | |
4912 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4913 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4914 | struct intel_encoder *encoder; | |
99d736a2 ML |
4915 | int pipe = intel_crtc->pipe, hsw_workaround_pipe; |
4916 | struct intel_crtc_state *pipe_config = | |
4917 | to_intel_crtc_state(crtc->state); | |
4f771f10 | 4918 | |
53d9f4e9 | 4919 | if (WARN_ON(intel_crtc->active)) |
4f771f10 PZ |
4920 | return; |
4921 | ||
df8ad70c DV |
4922 | if (intel_crtc_to_shared_dpll(intel_crtc)) |
4923 | intel_enable_shared_dpll(intel_crtc); | |
4924 | ||
6e3c9717 | 4925 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 4926 | intel_dp_set_m_n(intel_crtc, M1_N1); |
229fca97 DV |
4927 | |
4928 | intel_set_pipe_timings(intel_crtc); | |
4929 | ||
6e3c9717 ACO |
4930 | if (intel_crtc->config->cpu_transcoder != TRANSCODER_EDP) { |
4931 | I915_WRITE(PIPE_MULT(intel_crtc->config->cpu_transcoder), | |
4932 | intel_crtc->config->pixel_multiplier - 1); | |
ebb69c95 CT |
4933 | } |
4934 | ||
6e3c9717 | 4935 | if (intel_crtc->config->has_pch_encoder) { |
229fca97 | 4936 | intel_cpu_transcoder_set_m_n(intel_crtc, |
6e3c9717 | 4937 | &intel_crtc->config->fdi_m_n, NULL); |
229fca97 DV |
4938 | } |
4939 | ||
4940 | haswell_set_pipeconf(crtc); | |
4941 | ||
4942 | intel_set_pipe_csc(crtc); | |
4943 | ||
4f771f10 | 4944 | intel_crtc->active = true; |
8664281b | 4945 | |
a72e4c9f | 4946 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4f771f10 PZ |
4947 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4948 | if (encoder->pre_enable) | |
4949 | encoder->pre_enable(encoder); | |
4950 | ||
6e3c9717 | 4951 | if (intel_crtc->config->has_pch_encoder) { |
a72e4c9f DV |
4952 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
4953 | true); | |
4fe9467d ID |
4954 | dev_priv->display.fdi_link_train(crtc); |
4955 | } | |
4956 | ||
1f544388 | 4957 | intel_ddi_enable_pipe_clock(intel_crtc); |
4f771f10 | 4958 | |
ff6d9f55 | 4959 | if (INTEL_INFO(dev)->gen == 9) |
e435d6e5 | 4960 | skylake_pfit_enable(intel_crtc); |
ff6d9f55 | 4961 | else if (INTEL_INFO(dev)->gen < 9) |
bd2e244f | 4962 | ironlake_pfit_enable(intel_crtc); |
ff6d9f55 JB |
4963 | else |
4964 | MISSING_CASE(INTEL_INFO(dev)->gen); | |
4f771f10 PZ |
4965 | |
4966 | /* | |
4967 | * On ILK+ LUT must be loaded before the pipe is running but with | |
4968 | * clocks enabled | |
4969 | */ | |
4970 | intel_crtc_load_lut(crtc); | |
4971 | ||
1f544388 | 4972 | intel_ddi_set_pipe_settings(crtc); |
8228c251 | 4973 | intel_ddi_enable_transcoder_func(crtc); |
4f771f10 | 4974 | |
f37fcc2a | 4975 | intel_update_watermarks(crtc); |
e1fdc473 | 4976 | intel_enable_pipe(intel_crtc); |
42db64ef | 4977 | |
6e3c9717 | 4978 | if (intel_crtc->config->has_pch_encoder) |
1507e5bd | 4979 | lpt_pch_enable(crtc); |
4f771f10 | 4980 | |
6e3c9717 | 4981 | if (intel_crtc->config->dp_encoder_is_mst) |
0e32b39c DA |
4982 | intel_ddi_set_vc_payload_alloc(crtc, true); |
4983 | ||
f9b61ff6 DV |
4984 | assert_vblank_disabled(crtc); |
4985 | drm_crtc_vblank_on(crtc); | |
4986 | ||
8807e55b | 4987 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
4f771f10 | 4988 | encoder->enable(encoder); |
8807e55b JN |
4989 | intel_opregion_notify_encoder(encoder, true); |
4990 | } | |
4f771f10 | 4991 | |
e4916946 PZ |
4992 | /* If we change the relative order between pipe/planes enabling, we need |
4993 | * to change the workaround. */ | |
99d736a2 ML |
4994 | hsw_workaround_pipe = pipe_config->hsw_workaround_pipe; |
4995 | if (IS_HASWELL(dev) && hsw_workaround_pipe != INVALID_PIPE) { | |
4996 | intel_wait_for_vblank(dev, hsw_workaround_pipe); | |
4997 | intel_wait_for_vblank(dev, hsw_workaround_pipe); | |
4998 | } | |
4f771f10 PZ |
4999 | } |
5000 | ||
3f8dce3a DV |
5001 | static void ironlake_pfit_disable(struct intel_crtc *crtc) |
5002 | { | |
5003 | struct drm_device *dev = crtc->base.dev; | |
5004 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5005 | int pipe = crtc->pipe; | |
5006 | ||
5007 | /* To avoid upsetting the power well on haswell only disable the pfit if | |
5008 | * it's in use. The hw state code will make sure we get this right. */ | |
6e3c9717 | 5009 | if (crtc->config->pch_pfit.enabled) { |
3f8dce3a DV |
5010 | I915_WRITE(PF_CTL(pipe), 0); |
5011 | I915_WRITE(PF_WIN_POS(pipe), 0); | |
5012 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
5013 | } | |
5014 | } | |
5015 | ||
6be4a607 JB |
5016 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
5017 | { | |
5018 | struct drm_device *dev = crtc->dev; | |
5019 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5020 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 5021 | struct intel_encoder *encoder; |
6be4a607 | 5022 | int pipe = intel_crtc->pipe; |
5eddb70b | 5023 | u32 reg, temp; |
b52eb4dc | 5024 | |
ea9d758d DV |
5025 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5026 | encoder->disable(encoder); | |
5027 | ||
f9b61ff6 DV |
5028 | drm_crtc_vblank_off(crtc); |
5029 | assert_vblank_disabled(crtc); | |
5030 | ||
6e3c9717 | 5031 | if (intel_crtc->config->has_pch_encoder) |
a72e4c9f | 5032 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false); |
d925c59a | 5033 | |
575f7ab7 | 5034 | intel_disable_pipe(intel_crtc); |
32f9d658 | 5035 | |
3f8dce3a | 5036 | ironlake_pfit_disable(intel_crtc); |
2c07245f | 5037 | |
5a74f70a VS |
5038 | if (intel_crtc->config->has_pch_encoder) |
5039 | ironlake_fdi_disable(crtc); | |
5040 | ||
bf49ec8c DV |
5041 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5042 | if (encoder->post_disable) | |
5043 | encoder->post_disable(encoder); | |
2c07245f | 5044 | |
6e3c9717 | 5045 | if (intel_crtc->config->has_pch_encoder) { |
d925c59a | 5046 | ironlake_disable_pch_transcoder(dev_priv, pipe); |
6be4a607 | 5047 | |
d925c59a DV |
5048 | if (HAS_PCH_CPT(dev)) { |
5049 | /* disable TRANS_DP_CTL */ | |
5050 | reg = TRANS_DP_CTL(pipe); | |
5051 | temp = I915_READ(reg); | |
5052 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | | |
5053 | TRANS_DP_PORT_SEL_MASK); | |
5054 | temp |= TRANS_DP_PORT_SEL_NONE; | |
5055 | I915_WRITE(reg, temp); | |
5056 | ||
5057 | /* disable DPLL_SEL */ | |
5058 | temp = I915_READ(PCH_DPLL_SEL); | |
11887397 | 5059 | temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe)); |
d925c59a | 5060 | I915_WRITE(PCH_DPLL_SEL, temp); |
9db4a9c7 | 5061 | } |
e3421a18 | 5062 | |
d925c59a DV |
5063 | ironlake_fdi_pll_disable(intel_crtc); |
5064 | } | |
e4ca0612 PJ |
5065 | |
5066 | intel_crtc->active = false; | |
5067 | intel_update_watermarks(crtc); | |
6be4a607 | 5068 | } |
1b3c7a47 | 5069 | |
4f771f10 | 5070 | static void haswell_crtc_disable(struct drm_crtc *crtc) |
ee7b9f93 | 5071 | { |
4f771f10 PZ |
5072 | struct drm_device *dev = crtc->dev; |
5073 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee7b9f93 | 5074 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4f771f10 | 5075 | struct intel_encoder *encoder; |
6e3c9717 | 5076 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
ee7b9f93 | 5077 | |
8807e55b JN |
5078 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5079 | intel_opregion_notify_encoder(encoder, false); | |
4f771f10 | 5080 | encoder->disable(encoder); |
8807e55b | 5081 | } |
4f771f10 | 5082 | |
f9b61ff6 DV |
5083 | drm_crtc_vblank_off(crtc); |
5084 | assert_vblank_disabled(crtc); | |
5085 | ||
6e3c9717 | 5086 | if (intel_crtc->config->has_pch_encoder) |
a72e4c9f DV |
5087 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
5088 | false); | |
575f7ab7 | 5089 | intel_disable_pipe(intel_crtc); |
4f771f10 | 5090 | |
6e3c9717 | 5091 | if (intel_crtc->config->dp_encoder_is_mst) |
a4bf214f VS |
5092 | intel_ddi_set_vc_payload_alloc(crtc, false); |
5093 | ||
ad80a810 | 5094 | intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder); |
4f771f10 | 5095 | |
ff6d9f55 | 5096 | if (INTEL_INFO(dev)->gen == 9) |
e435d6e5 | 5097 | skylake_scaler_disable(intel_crtc); |
ff6d9f55 | 5098 | else if (INTEL_INFO(dev)->gen < 9) |
bd2e244f | 5099 | ironlake_pfit_disable(intel_crtc); |
ff6d9f55 JB |
5100 | else |
5101 | MISSING_CASE(INTEL_INFO(dev)->gen); | |
4f771f10 | 5102 | |
1f544388 | 5103 | intel_ddi_disable_pipe_clock(intel_crtc); |
4f771f10 | 5104 | |
6e3c9717 | 5105 | if (intel_crtc->config->has_pch_encoder) { |
ab4d966c | 5106 | lpt_disable_pch_transcoder(dev_priv); |
1ad960f2 | 5107 | intel_ddi_fdi_disable(crtc); |
83616634 | 5108 | } |
4f771f10 | 5109 | |
97b040aa ID |
5110 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5111 | if (encoder->post_disable) | |
5112 | encoder->post_disable(encoder); | |
e4ca0612 PJ |
5113 | |
5114 | intel_crtc->active = false; | |
5115 | intel_update_watermarks(crtc); | |
4f771f10 PZ |
5116 | } |
5117 | ||
2dd24552 JB |
5118 | static void i9xx_pfit_enable(struct intel_crtc *crtc) |
5119 | { | |
5120 | struct drm_device *dev = crtc->base.dev; | |
5121 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 5122 | struct intel_crtc_state *pipe_config = crtc->config; |
2dd24552 | 5123 | |
681a8504 | 5124 | if (!pipe_config->gmch_pfit.control) |
2dd24552 JB |
5125 | return; |
5126 | ||
2dd24552 | 5127 | /* |
c0b03411 DV |
5128 | * The panel fitter should only be adjusted whilst the pipe is disabled, |
5129 | * according to register description and PRM. | |
2dd24552 | 5130 | */ |
c0b03411 DV |
5131 | WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE); |
5132 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
2dd24552 | 5133 | |
b074cec8 JB |
5134 | I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios); |
5135 | I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control); | |
5a80c45c DV |
5136 | |
5137 | /* Border color in case we don't scale up to the full screen. Black by | |
5138 | * default, change to something else for debugging. */ | |
5139 | I915_WRITE(BCLRPAT(crtc->pipe), 0); | |
2dd24552 JB |
5140 | } |
5141 | ||
d05410f9 DA |
5142 | static enum intel_display_power_domain port_to_power_domain(enum port port) |
5143 | { | |
5144 | switch (port) { | |
5145 | case PORT_A: | |
5146 | return POWER_DOMAIN_PORT_DDI_A_4_LANES; | |
5147 | case PORT_B: | |
5148 | return POWER_DOMAIN_PORT_DDI_B_4_LANES; | |
5149 | case PORT_C: | |
5150 | return POWER_DOMAIN_PORT_DDI_C_4_LANES; | |
5151 | case PORT_D: | |
5152 | return POWER_DOMAIN_PORT_DDI_D_4_LANES; | |
5153 | default: | |
5154 | WARN_ON_ONCE(1); | |
5155 | return POWER_DOMAIN_PORT_OTHER; | |
5156 | } | |
5157 | } | |
5158 | ||
77d22dca ID |
5159 | #define for_each_power_domain(domain, mask) \ |
5160 | for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \ | |
5161 | if ((1 << (domain)) & (mask)) | |
5162 | ||
319be8ae ID |
5163 | enum intel_display_power_domain |
5164 | intel_display_port_power_domain(struct intel_encoder *intel_encoder) | |
5165 | { | |
5166 | struct drm_device *dev = intel_encoder->base.dev; | |
5167 | struct intel_digital_port *intel_dig_port; | |
5168 | ||
5169 | switch (intel_encoder->type) { | |
5170 | case INTEL_OUTPUT_UNKNOWN: | |
5171 | /* Only DDI platforms should ever use this output type */ | |
5172 | WARN_ON_ONCE(!HAS_DDI(dev)); | |
5173 | case INTEL_OUTPUT_DISPLAYPORT: | |
5174 | case INTEL_OUTPUT_HDMI: | |
5175 | case INTEL_OUTPUT_EDP: | |
5176 | intel_dig_port = enc_to_dig_port(&intel_encoder->base); | |
d05410f9 | 5177 | return port_to_power_domain(intel_dig_port->port); |
0e32b39c DA |
5178 | case INTEL_OUTPUT_DP_MST: |
5179 | intel_dig_port = enc_to_mst(&intel_encoder->base)->primary; | |
5180 | return port_to_power_domain(intel_dig_port->port); | |
319be8ae ID |
5181 | case INTEL_OUTPUT_ANALOG: |
5182 | return POWER_DOMAIN_PORT_CRT; | |
5183 | case INTEL_OUTPUT_DSI: | |
5184 | return POWER_DOMAIN_PORT_DSI; | |
5185 | default: | |
5186 | return POWER_DOMAIN_PORT_OTHER; | |
5187 | } | |
5188 | } | |
5189 | ||
5190 | static unsigned long get_crtc_power_domains(struct drm_crtc *crtc) | |
77d22dca | 5191 | { |
319be8ae ID |
5192 | struct drm_device *dev = crtc->dev; |
5193 | struct intel_encoder *intel_encoder; | |
5194 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5195 | enum pipe pipe = intel_crtc->pipe; | |
77d22dca ID |
5196 | unsigned long mask; |
5197 | enum transcoder transcoder; | |
5198 | ||
292b990e ML |
5199 | if (!crtc->state->active) |
5200 | return 0; | |
5201 | ||
77d22dca ID |
5202 | transcoder = intel_pipe_to_cpu_transcoder(dev->dev_private, pipe); |
5203 | ||
5204 | mask = BIT(POWER_DOMAIN_PIPE(pipe)); | |
5205 | mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder)); | |
6e3c9717 ACO |
5206 | if (intel_crtc->config->pch_pfit.enabled || |
5207 | intel_crtc->config->pch_pfit.force_thru) | |
77d22dca ID |
5208 | mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe)); |
5209 | ||
319be8ae ID |
5210 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) |
5211 | mask |= BIT(intel_display_port_power_domain(intel_encoder)); | |
5212 | ||
77d22dca ID |
5213 | return mask; |
5214 | } | |
5215 | ||
292b990e | 5216 | static unsigned long modeset_get_crtc_power_domains(struct drm_crtc *crtc) |
77d22dca | 5217 | { |
292b990e ML |
5218 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
5219 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5220 | enum intel_display_power_domain domain; | |
5221 | unsigned long domains, new_domains, old_domains; | |
77d22dca | 5222 | |
292b990e ML |
5223 | old_domains = intel_crtc->enabled_power_domains; |
5224 | intel_crtc->enabled_power_domains = new_domains = get_crtc_power_domains(crtc); | |
77d22dca | 5225 | |
292b990e ML |
5226 | domains = new_domains & ~old_domains; |
5227 | ||
5228 | for_each_power_domain(domain, domains) | |
5229 | intel_display_power_get(dev_priv, domain); | |
5230 | ||
5231 | return old_domains & ~new_domains; | |
5232 | } | |
5233 | ||
5234 | static void modeset_put_power_domains(struct drm_i915_private *dev_priv, | |
5235 | unsigned long domains) | |
5236 | { | |
5237 | enum intel_display_power_domain domain; | |
5238 | ||
5239 | for_each_power_domain(domain, domains) | |
5240 | intel_display_power_put(dev_priv, domain); | |
5241 | } | |
77d22dca | 5242 | |
292b990e ML |
5243 | static void modeset_update_crtc_power_domains(struct drm_atomic_state *state) |
5244 | { | |
5245 | struct drm_device *dev = state->dev; | |
5246 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5247 | unsigned long put_domains[I915_MAX_PIPES] = {}; | |
5248 | struct drm_crtc_state *crtc_state; | |
5249 | struct drm_crtc *crtc; | |
5250 | int i; | |
77d22dca | 5251 | |
292b990e ML |
5252 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
5253 | if (needs_modeset(crtc->state)) | |
5254 | put_domains[to_intel_crtc(crtc)->pipe] = | |
5255 | modeset_get_crtc_power_domains(crtc); | |
77d22dca ID |
5256 | } |
5257 | ||
27c329ed ML |
5258 | if (dev_priv->display.modeset_commit_cdclk) { |
5259 | unsigned int cdclk = to_intel_atomic_state(state)->cdclk; | |
5260 | ||
5261 | if (cdclk != dev_priv->cdclk_freq && | |
5262 | !WARN_ON(!state->allow_modeset)) | |
5263 | dev_priv->display.modeset_commit_cdclk(state); | |
5264 | } | |
50f6e502 | 5265 | |
292b990e ML |
5266 | for (i = 0; i < I915_MAX_PIPES; i++) |
5267 | if (put_domains[i]) | |
5268 | modeset_put_power_domains(dev_priv, put_domains[i]); | |
77d22dca ID |
5269 | } |
5270 | ||
560a7ae4 DL |
5271 | static void intel_update_max_cdclk(struct drm_device *dev) |
5272 | { | |
5273 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5274 | ||
5275 | if (IS_SKYLAKE(dev)) { | |
5276 | u32 limit = I915_READ(SKL_DFSM) & SKL_DFSM_CDCLK_LIMIT_MASK; | |
5277 | ||
5278 | if (limit == SKL_DFSM_CDCLK_LIMIT_675) | |
5279 | dev_priv->max_cdclk_freq = 675000; | |
5280 | else if (limit == SKL_DFSM_CDCLK_LIMIT_540) | |
5281 | dev_priv->max_cdclk_freq = 540000; | |
5282 | else if (limit == SKL_DFSM_CDCLK_LIMIT_450) | |
5283 | dev_priv->max_cdclk_freq = 450000; | |
5284 | else | |
5285 | dev_priv->max_cdclk_freq = 337500; | |
5286 | } else if (IS_BROADWELL(dev)) { | |
5287 | /* | |
5288 | * FIXME with extra cooling we can allow | |
5289 | * 540 MHz for ULX and 675 Mhz for ULT. | |
5290 | * How can we know if extra cooling is | |
5291 | * available? PCI ID, VTB, something else? | |
5292 | */ | |
5293 | if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) | |
5294 | dev_priv->max_cdclk_freq = 450000; | |
5295 | else if (IS_BDW_ULX(dev)) | |
5296 | dev_priv->max_cdclk_freq = 450000; | |
5297 | else if (IS_BDW_ULT(dev)) | |
5298 | dev_priv->max_cdclk_freq = 540000; | |
5299 | else | |
5300 | dev_priv->max_cdclk_freq = 675000; | |
0904deaf MK |
5301 | } else if (IS_CHERRYVIEW(dev)) { |
5302 | dev_priv->max_cdclk_freq = 320000; | |
560a7ae4 DL |
5303 | } else if (IS_VALLEYVIEW(dev)) { |
5304 | dev_priv->max_cdclk_freq = 400000; | |
5305 | } else { | |
5306 | /* otherwise assume cdclk is fixed */ | |
5307 | dev_priv->max_cdclk_freq = dev_priv->cdclk_freq; | |
5308 | } | |
5309 | ||
5310 | DRM_DEBUG_DRIVER("Max CD clock rate: %d kHz\n", | |
5311 | dev_priv->max_cdclk_freq); | |
5312 | } | |
5313 | ||
5314 | static void intel_update_cdclk(struct drm_device *dev) | |
5315 | { | |
5316 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5317 | ||
5318 | dev_priv->cdclk_freq = dev_priv->display.get_display_clock_speed(dev); | |
5319 | DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz\n", | |
5320 | dev_priv->cdclk_freq); | |
5321 | ||
5322 | /* | |
5323 | * Program the gmbus_freq based on the cdclk frequency. | |
5324 | * BSpec erroneously claims we should aim for 4MHz, but | |
5325 | * in fact 1MHz is the correct frequency. | |
5326 | */ | |
5327 | if (IS_VALLEYVIEW(dev)) { | |
5328 | /* | |
5329 | * Program the gmbus_freq based on the cdclk frequency. | |
5330 | * BSpec erroneously claims we should aim for 4MHz, but | |
5331 | * in fact 1MHz is the correct frequency. | |
5332 | */ | |
5333 | I915_WRITE(GMBUSFREQ_VLV, DIV_ROUND_UP(dev_priv->cdclk_freq, 1000)); | |
5334 | } | |
5335 | ||
5336 | if (dev_priv->max_cdclk_freq == 0) | |
5337 | intel_update_max_cdclk(dev); | |
5338 | } | |
5339 | ||
70d0c574 | 5340 | static void broxton_set_cdclk(struct drm_device *dev, int frequency) |
f8437dd1 VK |
5341 | { |
5342 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5343 | uint32_t divider; | |
5344 | uint32_t ratio; | |
5345 | uint32_t current_freq; | |
5346 | int ret; | |
5347 | ||
5348 | /* frequency = 19.2MHz * ratio / 2 / div{1,1.5,2,4} */ | |
5349 | switch (frequency) { | |
5350 | case 144000: | |
5351 | divider = BXT_CDCLK_CD2X_DIV_SEL_4; | |
5352 | ratio = BXT_DE_PLL_RATIO(60); | |
5353 | break; | |
5354 | case 288000: | |
5355 | divider = BXT_CDCLK_CD2X_DIV_SEL_2; | |
5356 | ratio = BXT_DE_PLL_RATIO(60); | |
5357 | break; | |
5358 | case 384000: | |
5359 | divider = BXT_CDCLK_CD2X_DIV_SEL_1_5; | |
5360 | ratio = BXT_DE_PLL_RATIO(60); | |
5361 | break; | |
5362 | case 576000: | |
5363 | divider = BXT_CDCLK_CD2X_DIV_SEL_1; | |
5364 | ratio = BXT_DE_PLL_RATIO(60); | |
5365 | break; | |
5366 | case 624000: | |
5367 | divider = BXT_CDCLK_CD2X_DIV_SEL_1; | |
5368 | ratio = BXT_DE_PLL_RATIO(65); | |
5369 | break; | |
5370 | case 19200: | |
5371 | /* | |
5372 | * Bypass frequency with DE PLL disabled. Init ratio, divider | |
5373 | * to suppress GCC warning. | |
5374 | */ | |
5375 | ratio = 0; | |
5376 | divider = 0; | |
5377 | break; | |
5378 | default: | |
5379 | DRM_ERROR("unsupported CDCLK freq %d", frequency); | |
5380 | ||
5381 | return; | |
5382 | } | |
5383 | ||
5384 | mutex_lock(&dev_priv->rps.hw_lock); | |
5385 | /* Inform power controller of upcoming frequency change */ | |
5386 | ret = sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, | |
5387 | 0x80000000); | |
5388 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5389 | ||
5390 | if (ret) { | |
5391 | DRM_ERROR("PCode CDCLK freq change notify failed (err %d, freq %d)\n", | |
5392 | ret, frequency); | |
5393 | return; | |
5394 | } | |
5395 | ||
5396 | current_freq = I915_READ(CDCLK_CTL) & CDCLK_FREQ_DECIMAL_MASK; | |
5397 | /* convert from .1 fixpoint MHz with -1MHz offset to kHz */ | |
5398 | current_freq = current_freq * 500 + 1000; | |
5399 | ||
5400 | /* | |
5401 | * DE PLL has to be disabled when | |
5402 | * - setting to 19.2MHz (bypass, PLL isn't used) | |
5403 | * - before setting to 624MHz (PLL needs toggling) | |
5404 | * - before setting to any frequency from 624MHz (PLL needs toggling) | |
5405 | */ | |
5406 | if (frequency == 19200 || frequency == 624000 || | |
5407 | current_freq == 624000) { | |
5408 | I915_WRITE(BXT_DE_PLL_ENABLE, ~BXT_DE_PLL_PLL_ENABLE); | |
5409 | /* Timeout 200us */ | |
5410 | if (wait_for(!(I915_READ(BXT_DE_PLL_ENABLE) & BXT_DE_PLL_LOCK), | |
5411 | 1)) | |
5412 | DRM_ERROR("timout waiting for DE PLL unlock\n"); | |
5413 | } | |
5414 | ||
5415 | if (frequency != 19200) { | |
5416 | uint32_t val; | |
5417 | ||
5418 | val = I915_READ(BXT_DE_PLL_CTL); | |
5419 | val &= ~BXT_DE_PLL_RATIO_MASK; | |
5420 | val |= ratio; | |
5421 | I915_WRITE(BXT_DE_PLL_CTL, val); | |
5422 | ||
5423 | I915_WRITE(BXT_DE_PLL_ENABLE, BXT_DE_PLL_PLL_ENABLE); | |
5424 | /* Timeout 200us */ | |
5425 | if (wait_for(I915_READ(BXT_DE_PLL_ENABLE) & BXT_DE_PLL_LOCK, 1)) | |
5426 | DRM_ERROR("timeout waiting for DE PLL lock\n"); | |
5427 | ||
5428 | val = I915_READ(CDCLK_CTL); | |
5429 | val &= ~BXT_CDCLK_CD2X_DIV_SEL_MASK; | |
5430 | val |= divider; | |
5431 | /* | |
5432 | * Disable SSA Precharge when CD clock frequency < 500 MHz, | |
5433 | * enable otherwise. | |
5434 | */ | |
5435 | val &= ~BXT_CDCLK_SSA_PRECHARGE_ENABLE; | |
5436 | if (frequency >= 500000) | |
5437 | val |= BXT_CDCLK_SSA_PRECHARGE_ENABLE; | |
5438 | ||
5439 | val &= ~CDCLK_FREQ_DECIMAL_MASK; | |
5440 | /* convert from kHz to .1 fixpoint MHz with -1MHz offset */ | |
5441 | val |= (frequency - 1000) / 500; | |
5442 | I915_WRITE(CDCLK_CTL, val); | |
5443 | } | |
5444 | ||
5445 | mutex_lock(&dev_priv->rps.hw_lock); | |
5446 | ret = sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, | |
5447 | DIV_ROUND_UP(frequency, 25000)); | |
5448 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5449 | ||
5450 | if (ret) { | |
5451 | DRM_ERROR("PCode CDCLK freq set failed, (err %d, freq %d)\n", | |
5452 | ret, frequency); | |
5453 | return; | |
5454 | } | |
5455 | ||
a47871bd | 5456 | intel_update_cdclk(dev); |
f8437dd1 VK |
5457 | } |
5458 | ||
5459 | void broxton_init_cdclk(struct drm_device *dev) | |
5460 | { | |
5461 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5462 | uint32_t val; | |
5463 | ||
5464 | /* | |
5465 | * NDE_RSTWRN_OPT RST PCH Handshake En must always be 0b on BXT | |
5466 | * or else the reset will hang because there is no PCH to respond. | |
5467 | * Move the handshake programming to initialization sequence. | |
5468 | * Previously was left up to BIOS. | |
5469 | */ | |
5470 | val = I915_READ(HSW_NDE_RSTWRN_OPT); | |
5471 | val &= ~RESET_PCH_HANDSHAKE_ENABLE; | |
5472 | I915_WRITE(HSW_NDE_RSTWRN_OPT, val); | |
5473 | ||
5474 | /* Enable PG1 for cdclk */ | |
5475 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); | |
5476 | ||
5477 | /* check if cd clock is enabled */ | |
5478 | if (I915_READ(BXT_DE_PLL_ENABLE) & BXT_DE_PLL_PLL_ENABLE) { | |
5479 | DRM_DEBUG_KMS("Display already initialized\n"); | |
5480 | return; | |
5481 | } | |
5482 | ||
5483 | /* | |
5484 | * FIXME: | |
5485 | * - The initial CDCLK needs to be read from VBT. | |
5486 | * Need to make this change after VBT has changes for BXT. | |
5487 | * - check if setting the max (or any) cdclk freq is really necessary | |
5488 | * here, it belongs to modeset time | |
5489 | */ | |
5490 | broxton_set_cdclk(dev, 624000); | |
5491 | ||
5492 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) | DBUF_POWER_REQUEST); | |
22e02c0b VS |
5493 | POSTING_READ(DBUF_CTL); |
5494 | ||
f8437dd1 VK |
5495 | udelay(10); |
5496 | ||
5497 | if (!(I915_READ(DBUF_CTL) & DBUF_POWER_STATE)) | |
5498 | DRM_ERROR("DBuf power enable timeout!\n"); | |
5499 | } | |
5500 | ||
5501 | void broxton_uninit_cdclk(struct drm_device *dev) | |
5502 | { | |
5503 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5504 | ||
5505 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) & ~DBUF_POWER_REQUEST); | |
22e02c0b VS |
5506 | POSTING_READ(DBUF_CTL); |
5507 | ||
f8437dd1 VK |
5508 | udelay(10); |
5509 | ||
5510 | if (I915_READ(DBUF_CTL) & DBUF_POWER_STATE) | |
5511 | DRM_ERROR("DBuf power disable timeout!\n"); | |
5512 | ||
5513 | /* Set minimum (bypass) frequency, in effect turning off the DE PLL */ | |
5514 | broxton_set_cdclk(dev, 19200); | |
5515 | ||
5516 | intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS); | |
5517 | } | |
5518 | ||
5d96d8af DL |
5519 | static const struct skl_cdclk_entry { |
5520 | unsigned int freq; | |
5521 | unsigned int vco; | |
5522 | } skl_cdclk_frequencies[] = { | |
5523 | { .freq = 308570, .vco = 8640 }, | |
5524 | { .freq = 337500, .vco = 8100 }, | |
5525 | { .freq = 432000, .vco = 8640 }, | |
5526 | { .freq = 450000, .vco = 8100 }, | |
5527 | { .freq = 540000, .vco = 8100 }, | |
5528 | { .freq = 617140, .vco = 8640 }, | |
5529 | { .freq = 675000, .vco = 8100 }, | |
5530 | }; | |
5531 | ||
5532 | static unsigned int skl_cdclk_decimal(unsigned int freq) | |
5533 | { | |
5534 | return (freq - 1000) / 500; | |
5535 | } | |
5536 | ||
5537 | static unsigned int skl_cdclk_get_vco(unsigned int freq) | |
5538 | { | |
5539 | unsigned int i; | |
5540 | ||
5541 | for (i = 0; i < ARRAY_SIZE(skl_cdclk_frequencies); i++) { | |
5542 | const struct skl_cdclk_entry *e = &skl_cdclk_frequencies[i]; | |
5543 | ||
5544 | if (e->freq == freq) | |
5545 | return e->vco; | |
5546 | } | |
5547 | ||
5548 | return 8100; | |
5549 | } | |
5550 | ||
5551 | static void | |
5552 | skl_dpll0_enable(struct drm_i915_private *dev_priv, unsigned int required_vco) | |
5553 | { | |
5554 | unsigned int min_freq; | |
5555 | u32 val; | |
5556 | ||
5557 | /* select the minimum CDCLK before enabling DPLL 0 */ | |
5558 | val = I915_READ(CDCLK_CTL); | |
5559 | val &= ~CDCLK_FREQ_SEL_MASK | ~CDCLK_FREQ_DECIMAL_MASK; | |
5560 | val |= CDCLK_FREQ_337_308; | |
5561 | ||
5562 | if (required_vco == 8640) | |
5563 | min_freq = 308570; | |
5564 | else | |
5565 | min_freq = 337500; | |
5566 | ||
5567 | val = CDCLK_FREQ_337_308 | skl_cdclk_decimal(min_freq); | |
5568 | ||
5569 | I915_WRITE(CDCLK_CTL, val); | |
5570 | POSTING_READ(CDCLK_CTL); | |
5571 | ||
5572 | /* | |
5573 | * We always enable DPLL0 with the lowest link rate possible, but still | |
5574 | * taking into account the VCO required to operate the eDP panel at the | |
5575 | * desired frequency. The usual DP link rates operate with a VCO of | |
5576 | * 8100 while the eDP 1.4 alternate link rates need a VCO of 8640. | |
5577 | * The modeset code is responsible for the selection of the exact link | |
5578 | * rate later on, with the constraint of choosing a frequency that | |
5579 | * works with required_vco. | |
5580 | */ | |
5581 | val = I915_READ(DPLL_CTRL1); | |
5582 | ||
5583 | val &= ~(DPLL_CTRL1_HDMI_MODE(SKL_DPLL0) | DPLL_CTRL1_SSC(SKL_DPLL0) | | |
5584 | DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0)); | |
5585 | val |= DPLL_CTRL1_OVERRIDE(SKL_DPLL0); | |
5586 | if (required_vco == 8640) | |
5587 | val |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1080, | |
5588 | SKL_DPLL0); | |
5589 | else | |
5590 | val |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_810, | |
5591 | SKL_DPLL0); | |
5592 | ||
5593 | I915_WRITE(DPLL_CTRL1, val); | |
5594 | POSTING_READ(DPLL_CTRL1); | |
5595 | ||
5596 | I915_WRITE(LCPLL1_CTL, I915_READ(LCPLL1_CTL) | LCPLL_PLL_ENABLE); | |
5597 | ||
5598 | if (wait_for(I915_READ(LCPLL1_CTL) & LCPLL_PLL_LOCK, 5)) | |
5599 | DRM_ERROR("DPLL0 not locked\n"); | |
5600 | } | |
5601 | ||
5602 | static bool skl_cdclk_pcu_ready(struct drm_i915_private *dev_priv) | |
5603 | { | |
5604 | int ret; | |
5605 | u32 val; | |
5606 | ||
5607 | /* inform PCU we want to change CDCLK */ | |
5608 | val = SKL_CDCLK_PREPARE_FOR_CHANGE; | |
5609 | mutex_lock(&dev_priv->rps.hw_lock); | |
5610 | ret = sandybridge_pcode_read(dev_priv, SKL_PCODE_CDCLK_CONTROL, &val); | |
5611 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5612 | ||
5613 | return ret == 0 && (val & SKL_CDCLK_READY_FOR_CHANGE); | |
5614 | } | |
5615 | ||
5616 | static bool skl_cdclk_wait_for_pcu_ready(struct drm_i915_private *dev_priv) | |
5617 | { | |
5618 | unsigned int i; | |
5619 | ||
5620 | for (i = 0; i < 15; i++) { | |
5621 | if (skl_cdclk_pcu_ready(dev_priv)) | |
5622 | return true; | |
5623 | udelay(10); | |
5624 | } | |
5625 | ||
5626 | return false; | |
5627 | } | |
5628 | ||
5629 | static void skl_set_cdclk(struct drm_i915_private *dev_priv, unsigned int freq) | |
5630 | { | |
560a7ae4 | 5631 | struct drm_device *dev = dev_priv->dev; |
5d96d8af DL |
5632 | u32 freq_select, pcu_ack; |
5633 | ||
5634 | DRM_DEBUG_DRIVER("Changing CDCLK to %dKHz\n", freq); | |
5635 | ||
5636 | if (!skl_cdclk_wait_for_pcu_ready(dev_priv)) { | |
5637 | DRM_ERROR("failed to inform PCU about cdclk change\n"); | |
5638 | return; | |
5639 | } | |
5640 | ||
5641 | /* set CDCLK_CTL */ | |
5642 | switch(freq) { | |
5643 | case 450000: | |
5644 | case 432000: | |
5645 | freq_select = CDCLK_FREQ_450_432; | |
5646 | pcu_ack = 1; | |
5647 | break; | |
5648 | case 540000: | |
5649 | freq_select = CDCLK_FREQ_540; | |
5650 | pcu_ack = 2; | |
5651 | break; | |
5652 | case 308570: | |
5653 | case 337500: | |
5654 | default: | |
5655 | freq_select = CDCLK_FREQ_337_308; | |
5656 | pcu_ack = 0; | |
5657 | break; | |
5658 | case 617140: | |
5659 | case 675000: | |
5660 | freq_select = CDCLK_FREQ_675_617; | |
5661 | pcu_ack = 3; | |
5662 | break; | |
5663 | } | |
5664 | ||
5665 | I915_WRITE(CDCLK_CTL, freq_select | skl_cdclk_decimal(freq)); | |
5666 | POSTING_READ(CDCLK_CTL); | |
5667 | ||
5668 | /* inform PCU of the change */ | |
5669 | mutex_lock(&dev_priv->rps.hw_lock); | |
5670 | sandybridge_pcode_write(dev_priv, SKL_PCODE_CDCLK_CONTROL, pcu_ack); | |
5671 | mutex_unlock(&dev_priv->rps.hw_lock); | |
560a7ae4 DL |
5672 | |
5673 | intel_update_cdclk(dev); | |
5d96d8af DL |
5674 | } |
5675 | ||
5676 | void skl_uninit_cdclk(struct drm_i915_private *dev_priv) | |
5677 | { | |
5678 | /* disable DBUF power */ | |
5679 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) & ~DBUF_POWER_REQUEST); | |
5680 | POSTING_READ(DBUF_CTL); | |
5681 | ||
5682 | udelay(10); | |
5683 | ||
5684 | if (I915_READ(DBUF_CTL) & DBUF_POWER_STATE) | |
5685 | DRM_ERROR("DBuf power disable timeout\n"); | |
5686 | ||
5687 | /* disable DPLL0 */ | |
5688 | I915_WRITE(LCPLL1_CTL, I915_READ(LCPLL1_CTL) & ~LCPLL_PLL_ENABLE); | |
5689 | if (wait_for(!(I915_READ(LCPLL1_CTL) & LCPLL_PLL_LOCK), 1)) | |
5690 | DRM_ERROR("Couldn't disable DPLL0\n"); | |
5691 | ||
5692 | intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS); | |
5693 | } | |
5694 | ||
5695 | void skl_init_cdclk(struct drm_i915_private *dev_priv) | |
5696 | { | |
5697 | u32 val; | |
5698 | unsigned int required_vco; | |
5699 | ||
5700 | /* enable PCH reset handshake */ | |
5701 | val = I915_READ(HSW_NDE_RSTWRN_OPT); | |
5702 | I915_WRITE(HSW_NDE_RSTWRN_OPT, val | RESET_PCH_HANDSHAKE_ENABLE); | |
5703 | ||
5704 | /* enable PG1 and Misc I/O */ | |
5705 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); | |
5706 | ||
5707 | /* DPLL0 already enabed !? */ | |
5708 | if (I915_READ(LCPLL1_CTL) & LCPLL_PLL_ENABLE) { | |
5709 | DRM_DEBUG_DRIVER("DPLL0 already running\n"); | |
5710 | return; | |
5711 | } | |
5712 | ||
5713 | /* enable DPLL0 */ | |
5714 | required_vco = skl_cdclk_get_vco(dev_priv->skl_boot_cdclk); | |
5715 | skl_dpll0_enable(dev_priv, required_vco); | |
5716 | ||
5717 | /* set CDCLK to the frequency the BIOS chose */ | |
5718 | skl_set_cdclk(dev_priv, dev_priv->skl_boot_cdclk); | |
5719 | ||
5720 | /* enable DBUF power */ | |
5721 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) | DBUF_POWER_REQUEST); | |
5722 | POSTING_READ(DBUF_CTL); | |
5723 | ||
5724 | udelay(10); | |
5725 | ||
5726 | if (!(I915_READ(DBUF_CTL) & DBUF_POWER_STATE)) | |
5727 | DRM_ERROR("DBuf power enable timeout\n"); | |
5728 | } | |
5729 | ||
dfcab17e | 5730 | /* returns HPLL frequency in kHz */ |
f8bf63fd | 5731 | static int valleyview_get_vco(struct drm_i915_private *dev_priv) |
30a970c6 | 5732 | { |
586f49dc | 5733 | int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 }; |
30a970c6 | 5734 | |
586f49dc | 5735 | /* Obtain SKU information */ |
a580516d | 5736 | mutex_lock(&dev_priv->sb_lock); |
586f49dc JB |
5737 | hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) & |
5738 | CCK_FUSE_HPLL_FREQ_MASK; | |
a580516d | 5739 | mutex_unlock(&dev_priv->sb_lock); |
30a970c6 | 5740 | |
dfcab17e | 5741 | return vco_freq[hpll_freq] * 1000; |
30a970c6 JB |
5742 | } |
5743 | ||
5744 | /* Adjust CDclk dividers to allow high res or save power if possible */ | |
5745 | static void valleyview_set_cdclk(struct drm_device *dev, int cdclk) | |
5746 | { | |
5747 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5748 | u32 val, cmd; | |
5749 | ||
164dfd28 VK |
5750 | WARN_ON(dev_priv->display.get_display_clock_speed(dev) |
5751 | != dev_priv->cdclk_freq); | |
d60c4473 | 5752 | |
dfcab17e | 5753 | if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */ |
30a970c6 | 5754 | cmd = 2; |
dfcab17e | 5755 | else if (cdclk == 266667) |
30a970c6 JB |
5756 | cmd = 1; |
5757 | else | |
5758 | cmd = 0; | |
5759 | ||
5760 | mutex_lock(&dev_priv->rps.hw_lock); | |
5761 | val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ); | |
5762 | val &= ~DSPFREQGUAR_MASK; | |
5763 | val |= (cmd << DSPFREQGUAR_SHIFT); | |
5764 | vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val); | |
5765 | if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & | |
5766 | DSPFREQSTAT_MASK) == (cmd << DSPFREQSTAT_SHIFT), | |
5767 | 50)) { | |
5768 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
5769 | } | |
5770 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5771 | ||
54433e91 VS |
5772 | mutex_lock(&dev_priv->sb_lock); |
5773 | ||
dfcab17e | 5774 | if (cdclk == 400000) { |
6bcda4f0 | 5775 | u32 divider; |
30a970c6 | 5776 | |
6bcda4f0 | 5777 | divider = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1; |
30a970c6 | 5778 | |
30a970c6 JB |
5779 | /* adjust cdclk divider */ |
5780 | val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL); | |
9cf33db5 | 5781 | val &= ~DISPLAY_FREQUENCY_VALUES; |
30a970c6 JB |
5782 | val |= divider; |
5783 | vlv_cck_write(dev_priv, CCK_DISPLAY_CLOCK_CONTROL, val); | |
a877e801 VS |
5784 | |
5785 | if (wait_for((vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL) & | |
5786 | DISPLAY_FREQUENCY_STATUS) == (divider << DISPLAY_FREQUENCY_STATUS_SHIFT), | |
5787 | 50)) | |
5788 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
30a970c6 JB |
5789 | } |
5790 | ||
30a970c6 JB |
5791 | /* adjust self-refresh exit latency value */ |
5792 | val = vlv_bunit_read(dev_priv, BUNIT_REG_BISOC); | |
5793 | val &= ~0x7f; | |
5794 | ||
5795 | /* | |
5796 | * For high bandwidth configs, we set a higher latency in the bunit | |
5797 | * so that the core display fetch happens in time to avoid underruns. | |
5798 | */ | |
dfcab17e | 5799 | if (cdclk == 400000) |
30a970c6 JB |
5800 | val |= 4500 / 250; /* 4.5 usec */ |
5801 | else | |
5802 | val |= 3000 / 250; /* 3.0 usec */ | |
5803 | vlv_bunit_write(dev_priv, BUNIT_REG_BISOC, val); | |
54433e91 | 5804 | |
a580516d | 5805 | mutex_unlock(&dev_priv->sb_lock); |
30a970c6 | 5806 | |
b6283055 | 5807 | intel_update_cdclk(dev); |
30a970c6 JB |
5808 | } |
5809 | ||
383c5a6a VS |
5810 | static void cherryview_set_cdclk(struct drm_device *dev, int cdclk) |
5811 | { | |
5812 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5813 | u32 val, cmd; | |
5814 | ||
164dfd28 VK |
5815 | WARN_ON(dev_priv->display.get_display_clock_speed(dev) |
5816 | != dev_priv->cdclk_freq); | |
383c5a6a VS |
5817 | |
5818 | switch (cdclk) { | |
383c5a6a VS |
5819 | case 333333: |
5820 | case 320000: | |
383c5a6a | 5821 | case 266667: |
383c5a6a | 5822 | case 200000: |
383c5a6a VS |
5823 | break; |
5824 | default: | |
5f77eeb0 | 5825 | MISSING_CASE(cdclk); |
383c5a6a VS |
5826 | return; |
5827 | } | |
5828 | ||
9d0d3fda VS |
5829 | /* |
5830 | * Specs are full of misinformation, but testing on actual | |
5831 | * hardware has shown that we just need to write the desired | |
5832 | * CCK divider into the Punit register. | |
5833 | */ | |
5834 | cmd = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1; | |
5835 | ||
383c5a6a VS |
5836 | mutex_lock(&dev_priv->rps.hw_lock); |
5837 | val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ); | |
5838 | val &= ~DSPFREQGUAR_MASK_CHV; | |
5839 | val |= (cmd << DSPFREQGUAR_SHIFT_CHV); | |
5840 | vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val); | |
5841 | if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & | |
5842 | DSPFREQSTAT_MASK_CHV) == (cmd << DSPFREQSTAT_SHIFT_CHV), | |
5843 | 50)) { | |
5844 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
5845 | } | |
5846 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5847 | ||
b6283055 | 5848 | intel_update_cdclk(dev); |
383c5a6a VS |
5849 | } |
5850 | ||
30a970c6 JB |
5851 | static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv, |
5852 | int max_pixclk) | |
5853 | { | |
6bcda4f0 | 5854 | int freq_320 = (dev_priv->hpll_freq << 1) % 320000 != 0 ? 333333 : 320000; |
6cca3195 | 5855 | int limit = IS_CHERRYVIEW(dev_priv) ? 95 : 90; |
29dc7ef3 | 5856 | |
30a970c6 JB |
5857 | /* |
5858 | * Really only a few cases to deal with, as only 4 CDclks are supported: | |
5859 | * 200MHz | |
5860 | * 267MHz | |
29dc7ef3 | 5861 | * 320/333MHz (depends on HPLL freq) |
6cca3195 VS |
5862 | * 400MHz (VLV only) |
5863 | * So we check to see whether we're above 90% (VLV) or 95% (CHV) | |
5864 | * of the lower bin and adjust if needed. | |
e37c67a1 VS |
5865 | * |
5866 | * We seem to get an unstable or solid color picture at 200MHz. | |
5867 | * Not sure what's wrong. For now use 200MHz only when all pipes | |
5868 | * are off. | |
30a970c6 | 5869 | */ |
6cca3195 VS |
5870 | if (!IS_CHERRYVIEW(dev_priv) && |
5871 | max_pixclk > freq_320*limit/100) | |
dfcab17e | 5872 | return 400000; |
6cca3195 | 5873 | else if (max_pixclk > 266667*limit/100) |
29dc7ef3 | 5874 | return freq_320; |
e37c67a1 | 5875 | else if (max_pixclk > 0) |
dfcab17e | 5876 | return 266667; |
e37c67a1 VS |
5877 | else |
5878 | return 200000; | |
30a970c6 JB |
5879 | } |
5880 | ||
f8437dd1 VK |
5881 | static int broxton_calc_cdclk(struct drm_i915_private *dev_priv, |
5882 | int max_pixclk) | |
5883 | { | |
5884 | /* | |
5885 | * FIXME: | |
5886 | * - remove the guardband, it's not needed on BXT | |
5887 | * - set 19.2MHz bypass frequency if there are no active pipes | |
5888 | */ | |
5889 | if (max_pixclk > 576000*9/10) | |
5890 | return 624000; | |
5891 | else if (max_pixclk > 384000*9/10) | |
5892 | return 576000; | |
5893 | else if (max_pixclk > 288000*9/10) | |
5894 | return 384000; | |
5895 | else if (max_pixclk > 144000*9/10) | |
5896 | return 288000; | |
5897 | else | |
5898 | return 144000; | |
5899 | } | |
5900 | ||
a821fc46 ACO |
5901 | /* Compute the max pixel clock for new configuration. Uses atomic state if |
5902 | * that's non-NULL, look at current state otherwise. */ | |
5903 | static int intel_mode_max_pixclk(struct drm_device *dev, | |
5904 | struct drm_atomic_state *state) | |
30a970c6 | 5905 | { |
30a970c6 | 5906 | struct intel_crtc *intel_crtc; |
304603f4 | 5907 | struct intel_crtc_state *crtc_state; |
30a970c6 JB |
5908 | int max_pixclk = 0; |
5909 | ||
d3fcc808 | 5910 | for_each_intel_crtc(dev, intel_crtc) { |
27c329ed | 5911 | crtc_state = intel_atomic_get_crtc_state(state, intel_crtc); |
304603f4 ACO |
5912 | if (IS_ERR(crtc_state)) |
5913 | return PTR_ERR(crtc_state); | |
5914 | ||
5915 | if (!crtc_state->base.enable) | |
5916 | continue; | |
5917 | ||
5918 | max_pixclk = max(max_pixclk, | |
5919 | crtc_state->base.adjusted_mode.crtc_clock); | |
30a970c6 JB |
5920 | } |
5921 | ||
5922 | return max_pixclk; | |
5923 | } | |
5924 | ||
27c329ed | 5925 | static int valleyview_modeset_calc_cdclk(struct drm_atomic_state *state) |
30a970c6 | 5926 | { |
27c329ed ML |
5927 | struct drm_device *dev = state->dev; |
5928 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5929 | int max_pixclk = intel_mode_max_pixclk(dev, state); | |
30a970c6 | 5930 | |
304603f4 ACO |
5931 | if (max_pixclk < 0) |
5932 | return max_pixclk; | |
30a970c6 | 5933 | |
27c329ed ML |
5934 | to_intel_atomic_state(state)->cdclk = |
5935 | valleyview_calc_cdclk(dev_priv, max_pixclk); | |
0a9ab303 | 5936 | |
27c329ed ML |
5937 | return 0; |
5938 | } | |
304603f4 | 5939 | |
27c329ed ML |
5940 | static int broxton_modeset_calc_cdclk(struct drm_atomic_state *state) |
5941 | { | |
5942 | struct drm_device *dev = state->dev; | |
5943 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5944 | int max_pixclk = intel_mode_max_pixclk(dev, state); | |
85a96e7a | 5945 | |
27c329ed ML |
5946 | if (max_pixclk < 0) |
5947 | return max_pixclk; | |
85a96e7a | 5948 | |
27c329ed ML |
5949 | to_intel_atomic_state(state)->cdclk = |
5950 | broxton_calc_cdclk(dev_priv, max_pixclk); | |
85a96e7a | 5951 | |
27c329ed | 5952 | return 0; |
30a970c6 JB |
5953 | } |
5954 | ||
1e69cd74 VS |
5955 | static void vlv_program_pfi_credits(struct drm_i915_private *dev_priv) |
5956 | { | |
5957 | unsigned int credits, default_credits; | |
5958 | ||
5959 | if (IS_CHERRYVIEW(dev_priv)) | |
5960 | default_credits = PFI_CREDIT(12); | |
5961 | else | |
5962 | default_credits = PFI_CREDIT(8); | |
5963 | ||
164dfd28 | 5964 | if (DIV_ROUND_CLOSEST(dev_priv->cdclk_freq, 1000) >= dev_priv->rps.cz_freq) { |
1e69cd74 VS |
5965 | /* CHV suggested value is 31 or 63 */ |
5966 | if (IS_CHERRYVIEW(dev_priv)) | |
fcc0008f | 5967 | credits = PFI_CREDIT_63; |
1e69cd74 VS |
5968 | else |
5969 | credits = PFI_CREDIT(15); | |
5970 | } else { | |
5971 | credits = default_credits; | |
5972 | } | |
5973 | ||
5974 | /* | |
5975 | * WA - write default credits before re-programming | |
5976 | * FIXME: should we also set the resend bit here? | |
5977 | */ | |
5978 | I915_WRITE(GCI_CONTROL, VGA_FAST_MODE_DISABLE | | |
5979 | default_credits); | |
5980 | ||
5981 | I915_WRITE(GCI_CONTROL, VGA_FAST_MODE_DISABLE | | |
5982 | credits | PFI_CREDIT_RESEND); | |
5983 | ||
5984 | /* | |
5985 | * FIXME is this guaranteed to clear | |
5986 | * immediately or should we poll for it? | |
5987 | */ | |
5988 | WARN_ON(I915_READ(GCI_CONTROL) & PFI_CREDIT_RESEND); | |
5989 | } | |
5990 | ||
27c329ed | 5991 | static void valleyview_modeset_commit_cdclk(struct drm_atomic_state *old_state) |
30a970c6 | 5992 | { |
a821fc46 | 5993 | struct drm_device *dev = old_state->dev; |
27c329ed | 5994 | unsigned int req_cdclk = to_intel_atomic_state(old_state)->cdclk; |
30a970c6 | 5995 | struct drm_i915_private *dev_priv = dev->dev_private; |
30a970c6 | 5996 | |
27c329ed ML |
5997 | /* |
5998 | * FIXME: We can end up here with all power domains off, yet | |
5999 | * with a CDCLK frequency other than the minimum. To account | |
6000 | * for this take the PIPE-A power domain, which covers the HW | |
6001 | * blocks needed for the following programming. This can be | |
6002 | * removed once it's guaranteed that we get here either with | |
6003 | * the minimum CDCLK set, or the required power domains | |
6004 | * enabled. | |
6005 | */ | |
6006 | intel_display_power_get(dev_priv, POWER_DOMAIN_PIPE_A); | |
738c05c0 | 6007 | |
27c329ed ML |
6008 | if (IS_CHERRYVIEW(dev)) |
6009 | cherryview_set_cdclk(dev, req_cdclk); | |
6010 | else | |
6011 | valleyview_set_cdclk(dev, req_cdclk); | |
738c05c0 | 6012 | |
27c329ed | 6013 | vlv_program_pfi_credits(dev_priv); |
1e69cd74 | 6014 | |
27c329ed | 6015 | intel_display_power_put(dev_priv, POWER_DOMAIN_PIPE_A); |
30a970c6 JB |
6016 | } |
6017 | ||
89b667f8 JB |
6018 | static void valleyview_crtc_enable(struct drm_crtc *crtc) |
6019 | { | |
6020 | struct drm_device *dev = crtc->dev; | |
a72e4c9f | 6021 | struct drm_i915_private *dev_priv = to_i915(dev); |
89b667f8 JB |
6022 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6023 | struct intel_encoder *encoder; | |
6024 | int pipe = intel_crtc->pipe; | |
23538ef1 | 6025 | bool is_dsi; |
89b667f8 | 6026 | |
53d9f4e9 | 6027 | if (WARN_ON(intel_crtc->active)) |
89b667f8 JB |
6028 | return; |
6029 | ||
409ee761 | 6030 | is_dsi = intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DSI); |
8525a235 | 6031 | |
1ae0d137 VS |
6032 | if (!is_dsi) { |
6033 | if (IS_CHERRYVIEW(dev)) | |
6e3c9717 | 6034 | chv_prepare_pll(intel_crtc, intel_crtc->config); |
1ae0d137 | 6035 | else |
6e3c9717 | 6036 | vlv_prepare_pll(intel_crtc, intel_crtc->config); |
1ae0d137 | 6037 | } |
5b18e57c | 6038 | |
6e3c9717 | 6039 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 6040 | intel_dp_set_m_n(intel_crtc, M1_N1); |
5b18e57c DV |
6041 | |
6042 | intel_set_pipe_timings(intel_crtc); | |
6043 | ||
c14b0485 VS |
6044 | if (IS_CHERRYVIEW(dev) && pipe == PIPE_B) { |
6045 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6046 | ||
6047 | I915_WRITE(CHV_BLEND(pipe), CHV_BLEND_LEGACY); | |
6048 | I915_WRITE(CHV_CANVAS(pipe), 0); | |
6049 | } | |
6050 | ||
5b18e57c DV |
6051 | i9xx_set_pipeconf(intel_crtc); |
6052 | ||
89b667f8 | 6053 | intel_crtc->active = true; |
89b667f8 | 6054 | |
a72e4c9f | 6055 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 6056 | |
89b667f8 JB |
6057 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6058 | if (encoder->pre_pll_enable) | |
6059 | encoder->pre_pll_enable(encoder); | |
6060 | ||
9d556c99 CML |
6061 | if (!is_dsi) { |
6062 | if (IS_CHERRYVIEW(dev)) | |
6e3c9717 | 6063 | chv_enable_pll(intel_crtc, intel_crtc->config); |
9d556c99 | 6064 | else |
6e3c9717 | 6065 | vlv_enable_pll(intel_crtc, intel_crtc->config); |
9d556c99 | 6066 | } |
89b667f8 JB |
6067 | |
6068 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
6069 | if (encoder->pre_enable) | |
6070 | encoder->pre_enable(encoder); | |
6071 | ||
2dd24552 JB |
6072 | i9xx_pfit_enable(intel_crtc); |
6073 | ||
63cbb074 VS |
6074 | intel_crtc_load_lut(crtc); |
6075 | ||
e1fdc473 | 6076 | intel_enable_pipe(intel_crtc); |
be6a6f8e | 6077 | |
4b3a9526 VS |
6078 | assert_vblank_disabled(crtc); |
6079 | drm_crtc_vblank_on(crtc); | |
6080 | ||
f9b61ff6 DV |
6081 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6082 | encoder->enable(encoder); | |
89b667f8 JB |
6083 | } |
6084 | ||
f13c2ef3 DV |
6085 | static void i9xx_set_pll_dividers(struct intel_crtc *crtc) |
6086 | { | |
6087 | struct drm_device *dev = crtc->base.dev; | |
6088 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6089 | ||
6e3c9717 ACO |
6090 | I915_WRITE(FP0(crtc->pipe), crtc->config->dpll_hw_state.fp0); |
6091 | I915_WRITE(FP1(crtc->pipe), crtc->config->dpll_hw_state.fp1); | |
f13c2ef3 DV |
6092 | } |
6093 | ||
0b8765c6 | 6094 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
6095 | { |
6096 | struct drm_device *dev = crtc->dev; | |
a72e4c9f | 6097 | struct drm_i915_private *dev_priv = to_i915(dev); |
79e53945 | 6098 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
ef9c3aee | 6099 | struct intel_encoder *encoder; |
79e53945 | 6100 | int pipe = intel_crtc->pipe; |
79e53945 | 6101 | |
53d9f4e9 | 6102 | if (WARN_ON(intel_crtc->active)) |
f7abfe8b CW |
6103 | return; |
6104 | ||
f13c2ef3 DV |
6105 | i9xx_set_pll_dividers(intel_crtc); |
6106 | ||
6e3c9717 | 6107 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 6108 | intel_dp_set_m_n(intel_crtc, M1_N1); |
5b18e57c DV |
6109 | |
6110 | intel_set_pipe_timings(intel_crtc); | |
6111 | ||
5b18e57c DV |
6112 | i9xx_set_pipeconf(intel_crtc); |
6113 | ||
f7abfe8b | 6114 | intel_crtc->active = true; |
6b383a7f | 6115 | |
4a3436e8 | 6116 | if (!IS_GEN2(dev)) |
a72e4c9f | 6117 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 6118 | |
9d6d9f19 MK |
6119 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6120 | if (encoder->pre_enable) | |
6121 | encoder->pre_enable(encoder); | |
6122 | ||
f6736a1a DV |
6123 | i9xx_enable_pll(intel_crtc); |
6124 | ||
2dd24552 JB |
6125 | i9xx_pfit_enable(intel_crtc); |
6126 | ||
63cbb074 VS |
6127 | intel_crtc_load_lut(crtc); |
6128 | ||
f37fcc2a | 6129 | intel_update_watermarks(crtc); |
e1fdc473 | 6130 | intel_enable_pipe(intel_crtc); |
be6a6f8e | 6131 | |
4b3a9526 VS |
6132 | assert_vblank_disabled(crtc); |
6133 | drm_crtc_vblank_on(crtc); | |
6134 | ||
f9b61ff6 DV |
6135 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6136 | encoder->enable(encoder); | |
0b8765c6 | 6137 | } |
79e53945 | 6138 | |
87476d63 DV |
6139 | static void i9xx_pfit_disable(struct intel_crtc *crtc) |
6140 | { | |
6141 | struct drm_device *dev = crtc->base.dev; | |
6142 | struct drm_i915_private *dev_priv = dev->dev_private; | |
87476d63 | 6143 | |
6e3c9717 | 6144 | if (!crtc->config->gmch_pfit.control) |
328d8e82 | 6145 | return; |
87476d63 | 6146 | |
328d8e82 | 6147 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87476d63 | 6148 | |
328d8e82 DV |
6149 | DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n", |
6150 | I915_READ(PFIT_CONTROL)); | |
6151 | I915_WRITE(PFIT_CONTROL, 0); | |
87476d63 DV |
6152 | } |
6153 | ||
0b8765c6 JB |
6154 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
6155 | { | |
6156 | struct drm_device *dev = crtc->dev; | |
6157 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6158 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 6159 | struct intel_encoder *encoder; |
0b8765c6 | 6160 | int pipe = intel_crtc->pipe; |
ef9c3aee | 6161 | |
6304cd91 VS |
6162 | /* |
6163 | * On gen2 planes are double buffered but the pipe isn't, so we must | |
6164 | * wait for planes to fully turn off before disabling the pipe. | |
564ed191 ID |
6165 | * We also need to wait on all gmch platforms because of the |
6166 | * self-refresh mode constraint explained above. | |
6304cd91 | 6167 | */ |
564ed191 | 6168 | intel_wait_for_vblank(dev, pipe); |
6304cd91 | 6169 | |
4b3a9526 VS |
6170 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6171 | encoder->disable(encoder); | |
6172 | ||
f9b61ff6 DV |
6173 | drm_crtc_vblank_off(crtc); |
6174 | assert_vblank_disabled(crtc); | |
6175 | ||
575f7ab7 | 6176 | intel_disable_pipe(intel_crtc); |
24a1f16d | 6177 | |
87476d63 | 6178 | i9xx_pfit_disable(intel_crtc); |
24a1f16d | 6179 | |
89b667f8 JB |
6180 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6181 | if (encoder->post_disable) | |
6182 | encoder->post_disable(encoder); | |
6183 | ||
409ee761 | 6184 | if (!intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DSI)) { |
076ed3b2 CML |
6185 | if (IS_CHERRYVIEW(dev)) |
6186 | chv_disable_pll(dev_priv, pipe); | |
6187 | else if (IS_VALLEYVIEW(dev)) | |
6188 | vlv_disable_pll(dev_priv, pipe); | |
6189 | else | |
1c4e0274 | 6190 | i9xx_disable_pll(intel_crtc); |
076ed3b2 | 6191 | } |
0b8765c6 | 6192 | |
4a3436e8 | 6193 | if (!IS_GEN2(dev)) |
a72e4c9f | 6194 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); |
e4ca0612 PJ |
6195 | |
6196 | intel_crtc->active = false; | |
6197 | intel_update_watermarks(crtc); | |
0b8765c6 JB |
6198 | } |
6199 | ||
b17d48e2 ML |
6200 | static void intel_crtc_disable_noatomic(struct drm_crtc *crtc) |
6201 | { | |
6202 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6203 | struct drm_i915_private *dev_priv = to_i915(crtc->dev); | |
6204 | enum intel_display_power_domain domain; | |
6205 | unsigned long domains; | |
6206 | ||
6207 | if (!intel_crtc->active) | |
6208 | return; | |
6209 | ||
a539205a ML |
6210 | if (to_intel_plane_state(crtc->primary->state)->visible) { |
6211 | intel_crtc_wait_for_pending_flips(crtc); | |
6212 | intel_pre_disable_primary(crtc); | |
6213 | } | |
6214 | ||
d032ffa0 | 6215 | intel_crtc_disable_planes(crtc, crtc->state->plane_mask); |
b17d48e2 ML |
6216 | dev_priv->display.crtc_disable(crtc); |
6217 | ||
6218 | domains = intel_crtc->enabled_power_domains; | |
6219 | for_each_power_domain(domain, domains) | |
6220 | intel_display_power_put(dev_priv, domain); | |
6221 | intel_crtc->enabled_power_domains = 0; | |
6222 | } | |
6223 | ||
6b72d486 ML |
6224 | /* |
6225 | * turn all crtc's off, but do not adjust state | |
6226 | * This has to be paired with a call to intel_modeset_setup_hw_state. | |
6227 | */ | |
70e0bd74 | 6228 | int intel_display_suspend(struct drm_device *dev) |
ee7b9f93 | 6229 | { |
70e0bd74 ML |
6230 | struct drm_mode_config *config = &dev->mode_config; |
6231 | struct drm_modeset_acquire_ctx *ctx = config->acquire_ctx; | |
6232 | struct drm_atomic_state *state; | |
6b72d486 | 6233 | struct drm_crtc *crtc; |
70e0bd74 ML |
6234 | unsigned crtc_mask = 0; |
6235 | int ret = 0; | |
6236 | ||
6237 | if (WARN_ON(!ctx)) | |
6238 | return 0; | |
6239 | ||
6240 | lockdep_assert_held(&ctx->ww_ctx); | |
6241 | state = drm_atomic_state_alloc(dev); | |
6242 | if (WARN_ON(!state)) | |
6243 | return -ENOMEM; | |
6244 | ||
6245 | state->acquire_ctx = ctx; | |
6246 | state->allow_modeset = true; | |
6247 | ||
6248 | for_each_crtc(dev, crtc) { | |
6249 | struct drm_crtc_state *crtc_state = | |
6250 | drm_atomic_get_crtc_state(state, crtc); | |
6b72d486 | 6251 | |
70e0bd74 ML |
6252 | ret = PTR_ERR_OR_ZERO(crtc_state); |
6253 | if (ret) | |
6254 | goto free; | |
6255 | ||
6256 | if (!crtc_state->active) | |
6257 | continue; | |
6258 | ||
6259 | crtc_state->active = false; | |
6260 | crtc_mask |= 1 << drm_crtc_index(crtc); | |
6261 | } | |
6262 | ||
6263 | if (crtc_mask) { | |
6264 | ret = intel_set_mode(state); | |
6265 | ||
6266 | if (!ret) { | |
6267 | for_each_crtc(dev, crtc) | |
6268 | if (crtc_mask & (1 << drm_crtc_index(crtc))) | |
6269 | crtc->state->active = true; | |
6270 | ||
6271 | return ret; | |
6272 | } | |
6273 | } | |
6274 | ||
6275 | free: | |
6276 | if (ret) | |
6277 | DRM_ERROR("Suspending crtc's failed with %i\n", ret); | |
6278 | drm_atomic_state_free(state); | |
6279 | return ret; | |
ee7b9f93 JB |
6280 | } |
6281 | ||
b04c5bd6 | 6282 | /* Master function to enable/disable CRTC and corresponding power wells */ |
5da76e94 | 6283 | int intel_crtc_control(struct drm_crtc *crtc, bool enable) |
976f8a20 DV |
6284 | { |
6285 | struct drm_device *dev = crtc->dev; | |
5da76e94 ML |
6286 | struct drm_mode_config *config = &dev->mode_config; |
6287 | struct drm_modeset_acquire_ctx *ctx = config->acquire_ctx; | |
0e572fe7 | 6288 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5da76e94 ML |
6289 | struct intel_crtc_state *pipe_config; |
6290 | struct drm_atomic_state *state; | |
6291 | int ret; | |
976f8a20 | 6292 | |
1b509259 | 6293 | if (enable == intel_crtc->active) |
5da76e94 | 6294 | return 0; |
0e572fe7 | 6295 | |
1b509259 | 6296 | if (enable && !crtc->state->enable) |
5da76e94 | 6297 | return 0; |
1b509259 | 6298 | |
5da76e94 ML |
6299 | /* this function should be called with drm_modeset_lock_all for now */ |
6300 | if (WARN_ON(!ctx)) | |
6301 | return -EIO; | |
6302 | lockdep_assert_held(&ctx->ww_ctx); | |
1b509259 | 6303 | |
5da76e94 ML |
6304 | state = drm_atomic_state_alloc(dev); |
6305 | if (WARN_ON(!state)) | |
6306 | return -ENOMEM; | |
1b509259 | 6307 | |
5da76e94 ML |
6308 | state->acquire_ctx = ctx; |
6309 | state->allow_modeset = true; | |
6310 | ||
6311 | pipe_config = intel_atomic_get_crtc_state(state, intel_crtc); | |
6312 | if (IS_ERR(pipe_config)) { | |
6313 | ret = PTR_ERR(pipe_config); | |
6314 | goto err; | |
0e572fe7 | 6315 | } |
5da76e94 ML |
6316 | pipe_config->base.active = enable; |
6317 | ||
6318 | ret = intel_set_mode(state); | |
6319 | if (!ret) | |
6320 | return ret; | |
6321 | ||
6322 | err: | |
6323 | DRM_ERROR("Updating crtc active failed with %i\n", ret); | |
6324 | drm_atomic_state_free(state); | |
6325 | return ret; | |
b04c5bd6 BF |
6326 | } |
6327 | ||
6328 | /** | |
6329 | * Sets the power management mode of the pipe and plane. | |
6330 | */ | |
6331 | void intel_crtc_update_dpms(struct drm_crtc *crtc) | |
6332 | { | |
6333 | struct drm_device *dev = crtc->dev; | |
6334 | struct intel_encoder *intel_encoder; | |
6335 | bool enable = false; | |
6336 | ||
6337 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) | |
6338 | enable |= intel_encoder->connectors_active; | |
6339 | ||
6340 | intel_crtc_control(crtc, enable); | |
cdd59983 CW |
6341 | } |
6342 | ||
ea5b213a | 6343 | void intel_encoder_destroy(struct drm_encoder *encoder) |
7e7d76c3 | 6344 | { |
4ef69c7a | 6345 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 6346 | |
ea5b213a CW |
6347 | drm_encoder_cleanup(encoder); |
6348 | kfree(intel_encoder); | |
7e7d76c3 JB |
6349 | } |
6350 | ||
9237329d | 6351 | /* Simple dpms helper for encoders with just one connector, no cloning and only |
5ab432ef DV |
6352 | * one kind of off state. It clamps all !ON modes to fully OFF and changes the |
6353 | * state of the entire output pipe. */ | |
9237329d | 6354 | static void intel_encoder_dpms(struct intel_encoder *encoder, int mode) |
7e7d76c3 | 6355 | { |
5ab432ef DV |
6356 | if (mode == DRM_MODE_DPMS_ON) { |
6357 | encoder->connectors_active = true; | |
6358 | ||
b2cabb0e | 6359 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef DV |
6360 | } else { |
6361 | encoder->connectors_active = false; | |
6362 | ||
b2cabb0e | 6363 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef | 6364 | } |
79e53945 JB |
6365 | } |
6366 | ||
0a91ca29 DV |
6367 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
6368 | * internal consistency). */ | |
b980514c | 6369 | static void intel_connector_check_state(struct intel_connector *connector) |
79e53945 | 6370 | { |
0a91ca29 DV |
6371 | if (connector->get_hw_state(connector)) { |
6372 | struct intel_encoder *encoder = connector->encoder; | |
6373 | struct drm_crtc *crtc; | |
6374 | bool encoder_enabled; | |
6375 | enum pipe pipe; | |
6376 | ||
6377 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
6378 | connector->base.base.id, | |
c23cc417 | 6379 | connector->base.name); |
0a91ca29 | 6380 | |
0e32b39c DA |
6381 | /* there is no real hw state for MST connectors */ |
6382 | if (connector->mst_port) | |
6383 | return; | |
6384 | ||
e2c719b7 | 6385 | I915_STATE_WARN(connector->base.dpms == DRM_MODE_DPMS_OFF, |
0a91ca29 | 6386 | "wrong connector dpms state\n"); |
e2c719b7 | 6387 | I915_STATE_WARN(connector->base.encoder != &encoder->base, |
0a91ca29 | 6388 | "active connector not linked to encoder\n"); |
0a91ca29 | 6389 | |
36cd7444 | 6390 | if (encoder) { |
e2c719b7 | 6391 | I915_STATE_WARN(!encoder->connectors_active, |
36cd7444 DA |
6392 | "encoder->connectors_active not set\n"); |
6393 | ||
6394 | encoder_enabled = encoder->get_hw_state(encoder, &pipe); | |
e2c719b7 RC |
6395 | I915_STATE_WARN(!encoder_enabled, "encoder not enabled\n"); |
6396 | if (I915_STATE_WARN_ON(!encoder->base.crtc)) | |
36cd7444 | 6397 | return; |
0a91ca29 | 6398 | |
36cd7444 | 6399 | crtc = encoder->base.crtc; |
0a91ca29 | 6400 | |
83d65738 MR |
6401 | I915_STATE_WARN(!crtc->state->enable, |
6402 | "crtc not enabled\n"); | |
e2c719b7 RC |
6403 | I915_STATE_WARN(!to_intel_crtc(crtc)->active, "crtc not active\n"); |
6404 | I915_STATE_WARN(pipe != to_intel_crtc(crtc)->pipe, | |
36cd7444 DA |
6405 | "encoder active on the wrong pipe\n"); |
6406 | } | |
0a91ca29 | 6407 | } |
79e53945 JB |
6408 | } |
6409 | ||
08d9bc92 ACO |
6410 | int intel_connector_init(struct intel_connector *connector) |
6411 | { | |
6412 | struct drm_connector_state *connector_state; | |
6413 | ||
6414 | connector_state = kzalloc(sizeof *connector_state, GFP_KERNEL); | |
6415 | if (!connector_state) | |
6416 | return -ENOMEM; | |
6417 | ||
6418 | connector->base.state = connector_state; | |
6419 | return 0; | |
6420 | } | |
6421 | ||
6422 | struct intel_connector *intel_connector_alloc(void) | |
6423 | { | |
6424 | struct intel_connector *connector; | |
6425 | ||
6426 | connector = kzalloc(sizeof *connector, GFP_KERNEL); | |
6427 | if (!connector) | |
6428 | return NULL; | |
6429 | ||
6430 | if (intel_connector_init(connector) < 0) { | |
6431 | kfree(connector); | |
6432 | return NULL; | |
6433 | } | |
6434 | ||
6435 | return connector; | |
6436 | } | |
6437 | ||
5ab432ef DV |
6438 | /* Even simpler default implementation, if there's really no special case to |
6439 | * consider. */ | |
6440 | void intel_connector_dpms(struct drm_connector *connector, int mode) | |
79e53945 | 6441 | { |
5ab432ef DV |
6442 | /* All the simple cases only support two dpms states. */ |
6443 | if (mode != DRM_MODE_DPMS_ON) | |
6444 | mode = DRM_MODE_DPMS_OFF; | |
d4270e57 | 6445 | |
5ab432ef DV |
6446 | if (mode == connector->dpms) |
6447 | return; | |
6448 | ||
6449 | connector->dpms = mode; | |
6450 | ||
6451 | /* Only need to change hw state when actually enabled */ | |
c9976dcf CW |
6452 | if (connector->encoder) |
6453 | intel_encoder_dpms(to_intel_encoder(connector->encoder), mode); | |
0a91ca29 | 6454 | |
b980514c | 6455 | intel_modeset_check_state(connector->dev); |
79e53945 JB |
6456 | } |
6457 | ||
f0947c37 DV |
6458 | /* Simple connector->get_hw_state implementation for encoders that support only |
6459 | * one connector and no cloning and hence the encoder state determines the state | |
6460 | * of the connector. */ | |
6461 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
ea5b213a | 6462 | { |
24929352 | 6463 | enum pipe pipe = 0; |
f0947c37 | 6464 | struct intel_encoder *encoder = connector->encoder; |
ea5b213a | 6465 | |
f0947c37 | 6466 | return encoder->get_hw_state(encoder, &pipe); |
ea5b213a CW |
6467 | } |
6468 | ||
6d293983 | 6469 | static int pipe_required_fdi_lanes(struct intel_crtc_state *crtc_state) |
d272ddfa | 6470 | { |
6d293983 ACO |
6471 | if (crtc_state->base.enable && crtc_state->has_pch_encoder) |
6472 | return crtc_state->fdi_lanes; | |
d272ddfa VS |
6473 | |
6474 | return 0; | |
6475 | } | |
6476 | ||
6d293983 | 6477 | static int ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe, |
5cec258b | 6478 | struct intel_crtc_state *pipe_config) |
1857e1da | 6479 | { |
6d293983 ACO |
6480 | struct drm_atomic_state *state = pipe_config->base.state; |
6481 | struct intel_crtc *other_crtc; | |
6482 | struct intel_crtc_state *other_crtc_state; | |
6483 | ||
1857e1da DV |
6484 | DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n", |
6485 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6486 | if (pipe_config->fdi_lanes > 4) { | |
6487 | DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n", | |
6488 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6d293983 | 6489 | return -EINVAL; |
1857e1da DV |
6490 | } |
6491 | ||
bafb6553 | 6492 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
1857e1da DV |
6493 | if (pipe_config->fdi_lanes > 2) { |
6494 | DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n", | |
6495 | pipe_config->fdi_lanes); | |
6d293983 | 6496 | return -EINVAL; |
1857e1da | 6497 | } else { |
6d293983 | 6498 | return 0; |
1857e1da DV |
6499 | } |
6500 | } | |
6501 | ||
6502 | if (INTEL_INFO(dev)->num_pipes == 2) | |
6d293983 | 6503 | return 0; |
1857e1da DV |
6504 | |
6505 | /* Ivybridge 3 pipe is really complicated */ | |
6506 | switch (pipe) { | |
6507 | case PIPE_A: | |
6d293983 | 6508 | return 0; |
1857e1da | 6509 | case PIPE_B: |
6d293983 ACO |
6510 | if (pipe_config->fdi_lanes <= 2) |
6511 | return 0; | |
6512 | ||
6513 | other_crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev, PIPE_C)); | |
6514 | other_crtc_state = | |
6515 | intel_atomic_get_crtc_state(state, other_crtc); | |
6516 | if (IS_ERR(other_crtc_state)) | |
6517 | return PTR_ERR(other_crtc_state); | |
6518 | ||
6519 | if (pipe_required_fdi_lanes(other_crtc_state) > 0) { | |
1857e1da DV |
6520 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n", |
6521 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6d293983 | 6522 | return -EINVAL; |
1857e1da | 6523 | } |
6d293983 | 6524 | return 0; |
1857e1da | 6525 | case PIPE_C: |
251cc67c VS |
6526 | if (pipe_config->fdi_lanes > 2) { |
6527 | DRM_DEBUG_KMS("only 2 lanes on pipe %c: required %i lanes\n", | |
6528 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6d293983 | 6529 | return -EINVAL; |
251cc67c | 6530 | } |
6d293983 ACO |
6531 | |
6532 | other_crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev, PIPE_B)); | |
6533 | other_crtc_state = | |
6534 | intel_atomic_get_crtc_state(state, other_crtc); | |
6535 | if (IS_ERR(other_crtc_state)) | |
6536 | return PTR_ERR(other_crtc_state); | |
6537 | ||
6538 | if (pipe_required_fdi_lanes(other_crtc_state) > 2) { | |
1857e1da | 6539 | DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n"); |
6d293983 | 6540 | return -EINVAL; |
1857e1da | 6541 | } |
6d293983 | 6542 | return 0; |
1857e1da DV |
6543 | default: |
6544 | BUG(); | |
6545 | } | |
6546 | } | |
6547 | ||
e29c22c0 DV |
6548 | #define RETRY 1 |
6549 | static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc, | |
5cec258b | 6550 | struct intel_crtc_state *pipe_config) |
877d48d5 | 6551 | { |
1857e1da | 6552 | struct drm_device *dev = intel_crtc->base.dev; |
2d112de7 | 6553 | struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
6d293983 ACO |
6554 | int lane, link_bw, fdi_dotclock, ret; |
6555 | bool needs_recompute = false; | |
877d48d5 | 6556 | |
e29c22c0 | 6557 | retry: |
877d48d5 DV |
6558 | /* FDI is a binary signal running at ~2.7GHz, encoding |
6559 | * each output octet as 10 bits. The actual frequency | |
6560 | * is stored as a divider into a 100MHz clock, and the | |
6561 | * mode pixel clock is stored in units of 1KHz. | |
6562 | * Hence the bw of each lane in terms of the mode signal | |
6563 | * is: | |
6564 | */ | |
6565 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
6566 | ||
241bfc38 | 6567 | fdi_dotclock = adjusted_mode->crtc_clock; |
877d48d5 | 6568 | |
2bd89a07 | 6569 | lane = ironlake_get_lanes_required(fdi_dotclock, link_bw, |
877d48d5 DV |
6570 | pipe_config->pipe_bpp); |
6571 | ||
6572 | pipe_config->fdi_lanes = lane; | |
6573 | ||
2bd89a07 | 6574 | intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock, |
877d48d5 | 6575 | link_bw, &pipe_config->fdi_m_n); |
1857e1da | 6576 | |
6d293983 ACO |
6577 | ret = ironlake_check_fdi_lanes(intel_crtc->base.dev, |
6578 | intel_crtc->pipe, pipe_config); | |
6579 | if (ret == -EINVAL && pipe_config->pipe_bpp > 6*3) { | |
e29c22c0 DV |
6580 | pipe_config->pipe_bpp -= 2*3; |
6581 | DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n", | |
6582 | pipe_config->pipe_bpp); | |
6583 | needs_recompute = true; | |
6584 | pipe_config->bw_constrained = true; | |
6585 | ||
6586 | goto retry; | |
6587 | } | |
6588 | ||
6589 | if (needs_recompute) | |
6590 | return RETRY; | |
6591 | ||
6d293983 | 6592 | return ret; |
877d48d5 DV |
6593 | } |
6594 | ||
8cfb3407 VS |
6595 | static bool pipe_config_supports_ips(struct drm_i915_private *dev_priv, |
6596 | struct intel_crtc_state *pipe_config) | |
6597 | { | |
6598 | if (pipe_config->pipe_bpp > 24) | |
6599 | return false; | |
6600 | ||
6601 | /* HSW can handle pixel rate up to cdclk? */ | |
6602 | if (IS_HASWELL(dev_priv->dev)) | |
6603 | return true; | |
6604 | ||
6605 | /* | |
b432e5cf VS |
6606 | * We compare against max which means we must take |
6607 | * the increased cdclk requirement into account when | |
6608 | * calculating the new cdclk. | |
6609 | * | |
6610 | * Should measure whether using a lower cdclk w/o IPS | |
8cfb3407 VS |
6611 | */ |
6612 | return ilk_pipe_pixel_rate(pipe_config) <= | |
6613 | dev_priv->max_cdclk_freq * 95 / 100; | |
6614 | } | |
6615 | ||
42db64ef | 6616 | static void hsw_compute_ips_config(struct intel_crtc *crtc, |
5cec258b | 6617 | struct intel_crtc_state *pipe_config) |
42db64ef | 6618 | { |
8cfb3407 VS |
6619 | struct drm_device *dev = crtc->base.dev; |
6620 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6621 | ||
d330a953 | 6622 | pipe_config->ips_enabled = i915.enable_ips && |
8cfb3407 VS |
6623 | hsw_crtc_supports_ips(crtc) && |
6624 | pipe_config_supports_ips(dev_priv, pipe_config); | |
42db64ef PZ |
6625 | } |
6626 | ||
a43f6e0f | 6627 | static int intel_crtc_compute_config(struct intel_crtc *crtc, |
5cec258b | 6628 | struct intel_crtc_state *pipe_config) |
79e53945 | 6629 | { |
a43f6e0f | 6630 | struct drm_device *dev = crtc->base.dev; |
8bd31e67 | 6631 | struct drm_i915_private *dev_priv = dev->dev_private; |
2d112de7 | 6632 | struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
89749350 | 6633 | |
ad3a4479 | 6634 | /* FIXME should check pixel clock limits on all platforms */ |
cf532bb2 | 6635 | if (INTEL_INFO(dev)->gen < 4) { |
44913155 | 6636 | int clock_limit = dev_priv->max_cdclk_freq; |
cf532bb2 VS |
6637 | |
6638 | /* | |
6639 | * Enable pixel doubling when the dot clock | |
6640 | * is > 90% of the (display) core speed. | |
6641 | * | |
b397c96b VS |
6642 | * GDG double wide on either pipe, |
6643 | * otherwise pipe A only. | |
cf532bb2 | 6644 | */ |
b397c96b | 6645 | if ((crtc->pipe == PIPE_A || IS_I915G(dev)) && |
241bfc38 | 6646 | adjusted_mode->crtc_clock > clock_limit * 9 / 10) { |
ad3a4479 | 6647 | clock_limit *= 2; |
cf532bb2 | 6648 | pipe_config->double_wide = true; |
ad3a4479 VS |
6649 | } |
6650 | ||
241bfc38 | 6651 | if (adjusted_mode->crtc_clock > clock_limit * 9 / 10) |
e29c22c0 | 6652 | return -EINVAL; |
2c07245f | 6653 | } |
89749350 | 6654 | |
1d1d0e27 VS |
6655 | /* |
6656 | * Pipe horizontal size must be even in: | |
6657 | * - DVO ganged mode | |
6658 | * - LVDS dual channel mode | |
6659 | * - Double wide pipe | |
6660 | */ | |
a93e255f | 6661 | if ((intel_pipe_will_have_type(pipe_config, INTEL_OUTPUT_LVDS) && |
1d1d0e27 VS |
6662 | intel_is_dual_link_lvds(dev)) || pipe_config->double_wide) |
6663 | pipe_config->pipe_src_w &= ~1; | |
6664 | ||
8693a824 DL |
6665 | /* Cantiga+ cannot handle modes with a hsync front porch of 0. |
6666 | * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw. | |
44f46b42 CW |
6667 | */ |
6668 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && | |
6669 | adjusted_mode->hsync_start == adjusted_mode->hdisplay) | |
e29c22c0 | 6670 | return -EINVAL; |
44f46b42 | 6671 | |
f5adf94e | 6672 | if (HAS_IPS(dev)) |
a43f6e0f DV |
6673 | hsw_compute_ips_config(crtc, pipe_config); |
6674 | ||
877d48d5 | 6675 | if (pipe_config->has_pch_encoder) |
a43f6e0f | 6676 | return ironlake_fdi_compute_config(crtc, pipe_config); |
877d48d5 | 6677 | |
cf5a15be | 6678 | return 0; |
79e53945 JB |
6679 | } |
6680 | ||
1652d19e VS |
6681 | static int skylake_get_display_clock_speed(struct drm_device *dev) |
6682 | { | |
6683 | struct drm_i915_private *dev_priv = to_i915(dev); | |
6684 | uint32_t lcpll1 = I915_READ(LCPLL1_CTL); | |
6685 | uint32_t cdctl = I915_READ(CDCLK_CTL); | |
6686 | uint32_t linkrate; | |
6687 | ||
414355a7 | 6688 | if (!(lcpll1 & LCPLL_PLL_ENABLE)) |
1652d19e | 6689 | return 24000; /* 24MHz is the cd freq with NSSC ref */ |
1652d19e VS |
6690 | |
6691 | if ((cdctl & CDCLK_FREQ_SEL_MASK) == CDCLK_FREQ_540) | |
6692 | return 540000; | |
6693 | ||
6694 | linkrate = (I915_READ(DPLL_CTRL1) & | |
71cd8423 | 6695 | DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0)) >> 1; |
1652d19e | 6696 | |
71cd8423 DL |
6697 | if (linkrate == DPLL_CTRL1_LINK_RATE_2160 || |
6698 | linkrate == DPLL_CTRL1_LINK_RATE_1080) { | |
1652d19e VS |
6699 | /* vco 8640 */ |
6700 | switch (cdctl & CDCLK_FREQ_SEL_MASK) { | |
6701 | case CDCLK_FREQ_450_432: | |
6702 | return 432000; | |
6703 | case CDCLK_FREQ_337_308: | |
6704 | return 308570; | |
6705 | case CDCLK_FREQ_675_617: | |
6706 | return 617140; | |
6707 | default: | |
6708 | WARN(1, "Unknown cd freq selection\n"); | |
6709 | } | |
6710 | } else { | |
6711 | /* vco 8100 */ | |
6712 | switch (cdctl & CDCLK_FREQ_SEL_MASK) { | |
6713 | case CDCLK_FREQ_450_432: | |
6714 | return 450000; | |
6715 | case CDCLK_FREQ_337_308: | |
6716 | return 337500; | |
6717 | case CDCLK_FREQ_675_617: | |
6718 | return 675000; | |
6719 | default: | |
6720 | WARN(1, "Unknown cd freq selection\n"); | |
6721 | } | |
6722 | } | |
6723 | ||
6724 | /* error case, do as if DPLL0 isn't enabled */ | |
6725 | return 24000; | |
6726 | } | |
6727 | ||
acd3f3d3 BP |
6728 | static int broxton_get_display_clock_speed(struct drm_device *dev) |
6729 | { | |
6730 | struct drm_i915_private *dev_priv = to_i915(dev); | |
6731 | uint32_t cdctl = I915_READ(CDCLK_CTL); | |
6732 | uint32_t pll_ratio = I915_READ(BXT_DE_PLL_CTL) & BXT_DE_PLL_RATIO_MASK; | |
6733 | uint32_t pll_enab = I915_READ(BXT_DE_PLL_ENABLE); | |
6734 | int cdclk; | |
6735 | ||
6736 | if (!(pll_enab & BXT_DE_PLL_PLL_ENABLE)) | |
6737 | return 19200; | |
6738 | ||
6739 | cdclk = 19200 * pll_ratio / 2; | |
6740 | ||
6741 | switch (cdctl & BXT_CDCLK_CD2X_DIV_SEL_MASK) { | |
6742 | case BXT_CDCLK_CD2X_DIV_SEL_1: | |
6743 | return cdclk; /* 576MHz or 624MHz */ | |
6744 | case BXT_CDCLK_CD2X_DIV_SEL_1_5: | |
6745 | return cdclk * 2 / 3; /* 384MHz */ | |
6746 | case BXT_CDCLK_CD2X_DIV_SEL_2: | |
6747 | return cdclk / 2; /* 288MHz */ | |
6748 | case BXT_CDCLK_CD2X_DIV_SEL_4: | |
6749 | return cdclk / 4; /* 144MHz */ | |
6750 | } | |
6751 | ||
6752 | /* error case, do as if DE PLL isn't enabled */ | |
6753 | return 19200; | |
6754 | } | |
6755 | ||
1652d19e VS |
6756 | static int broadwell_get_display_clock_speed(struct drm_device *dev) |
6757 | { | |
6758 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6759 | uint32_t lcpll = I915_READ(LCPLL_CTL); | |
6760 | uint32_t freq = lcpll & LCPLL_CLK_FREQ_MASK; | |
6761 | ||
6762 | if (lcpll & LCPLL_CD_SOURCE_FCLK) | |
6763 | return 800000; | |
6764 | else if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) | |
6765 | return 450000; | |
6766 | else if (freq == LCPLL_CLK_FREQ_450) | |
6767 | return 450000; | |
6768 | else if (freq == LCPLL_CLK_FREQ_54O_BDW) | |
6769 | return 540000; | |
6770 | else if (freq == LCPLL_CLK_FREQ_337_5_BDW) | |
6771 | return 337500; | |
6772 | else | |
6773 | return 675000; | |
6774 | } | |
6775 | ||
6776 | static int haswell_get_display_clock_speed(struct drm_device *dev) | |
6777 | { | |
6778 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6779 | uint32_t lcpll = I915_READ(LCPLL_CTL); | |
6780 | uint32_t freq = lcpll & LCPLL_CLK_FREQ_MASK; | |
6781 | ||
6782 | if (lcpll & LCPLL_CD_SOURCE_FCLK) | |
6783 | return 800000; | |
6784 | else if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) | |
6785 | return 450000; | |
6786 | else if (freq == LCPLL_CLK_FREQ_450) | |
6787 | return 450000; | |
6788 | else if (IS_HSW_ULT(dev)) | |
6789 | return 337500; | |
6790 | else | |
6791 | return 540000; | |
79e53945 JB |
6792 | } |
6793 | ||
25eb05fc JB |
6794 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
6795 | { | |
d197b7d3 | 6796 | struct drm_i915_private *dev_priv = dev->dev_private; |
d197b7d3 VS |
6797 | u32 val; |
6798 | int divider; | |
6799 | ||
6bcda4f0 VS |
6800 | if (dev_priv->hpll_freq == 0) |
6801 | dev_priv->hpll_freq = valleyview_get_vco(dev_priv); | |
6802 | ||
a580516d | 6803 | mutex_lock(&dev_priv->sb_lock); |
d197b7d3 | 6804 | val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL); |
a580516d | 6805 | mutex_unlock(&dev_priv->sb_lock); |
d197b7d3 VS |
6806 | |
6807 | divider = val & DISPLAY_FREQUENCY_VALUES; | |
6808 | ||
7d007f40 VS |
6809 | WARN((val & DISPLAY_FREQUENCY_STATUS) != |
6810 | (divider << DISPLAY_FREQUENCY_STATUS_SHIFT), | |
6811 | "cdclk change in progress\n"); | |
6812 | ||
6bcda4f0 | 6813 | return DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, divider + 1); |
25eb05fc JB |
6814 | } |
6815 | ||
b37a6434 VS |
6816 | static int ilk_get_display_clock_speed(struct drm_device *dev) |
6817 | { | |
6818 | return 450000; | |
6819 | } | |
6820 | ||
e70236a8 JB |
6821 | static int i945_get_display_clock_speed(struct drm_device *dev) |
6822 | { | |
6823 | return 400000; | |
6824 | } | |
79e53945 | 6825 | |
e70236a8 | 6826 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 6827 | { |
e907f170 | 6828 | return 333333; |
e70236a8 | 6829 | } |
79e53945 | 6830 | |
e70236a8 JB |
6831 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
6832 | { | |
6833 | return 200000; | |
6834 | } | |
79e53945 | 6835 | |
257a7ffc DV |
6836 | static int pnv_get_display_clock_speed(struct drm_device *dev) |
6837 | { | |
6838 | u16 gcfgc = 0; | |
6839 | ||
6840 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); | |
6841 | ||
6842 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
6843 | case GC_DISPLAY_CLOCK_267_MHZ_PNV: | |
e907f170 | 6844 | return 266667; |
257a7ffc | 6845 | case GC_DISPLAY_CLOCK_333_MHZ_PNV: |
e907f170 | 6846 | return 333333; |
257a7ffc | 6847 | case GC_DISPLAY_CLOCK_444_MHZ_PNV: |
e907f170 | 6848 | return 444444; |
257a7ffc DV |
6849 | case GC_DISPLAY_CLOCK_200_MHZ_PNV: |
6850 | return 200000; | |
6851 | default: | |
6852 | DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc); | |
6853 | case GC_DISPLAY_CLOCK_133_MHZ_PNV: | |
e907f170 | 6854 | return 133333; |
257a7ffc | 6855 | case GC_DISPLAY_CLOCK_167_MHZ_PNV: |
e907f170 | 6856 | return 166667; |
257a7ffc DV |
6857 | } |
6858 | } | |
6859 | ||
e70236a8 JB |
6860 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
6861 | { | |
6862 | u16 gcfgc = 0; | |
79e53945 | 6863 | |
e70236a8 JB |
6864 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
6865 | ||
6866 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
e907f170 | 6867 | return 133333; |
e70236a8 JB |
6868 | else { |
6869 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
6870 | case GC_DISPLAY_CLOCK_333_MHZ: | |
e907f170 | 6871 | return 333333; |
e70236a8 JB |
6872 | default: |
6873 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
6874 | return 190000; | |
79e53945 | 6875 | } |
e70236a8 JB |
6876 | } |
6877 | } | |
6878 | ||
6879 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
6880 | { | |
e907f170 | 6881 | return 266667; |
e70236a8 JB |
6882 | } |
6883 | ||
1b1d2716 | 6884 | static int i85x_get_display_clock_speed(struct drm_device *dev) |
e70236a8 JB |
6885 | { |
6886 | u16 hpllcc = 0; | |
1b1d2716 | 6887 | |
65cd2b3f VS |
6888 | /* |
6889 | * 852GM/852GMV only supports 133 MHz and the HPLLCC | |
6890 | * encoding is different :( | |
6891 | * FIXME is this the right way to detect 852GM/852GMV? | |
6892 | */ | |
6893 | if (dev->pdev->revision == 0x1) | |
6894 | return 133333; | |
6895 | ||
1b1d2716 VS |
6896 | pci_bus_read_config_word(dev->pdev->bus, |
6897 | PCI_DEVFN(0, 3), HPLLCC, &hpllcc); | |
6898 | ||
e70236a8 JB |
6899 | /* Assume that the hardware is in the high speed state. This |
6900 | * should be the default. | |
6901 | */ | |
6902 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
6903 | case GC_CLOCK_133_200: | |
1b1d2716 | 6904 | case GC_CLOCK_133_200_2: |
e70236a8 JB |
6905 | case GC_CLOCK_100_200: |
6906 | return 200000; | |
6907 | case GC_CLOCK_166_250: | |
6908 | return 250000; | |
6909 | case GC_CLOCK_100_133: | |
e907f170 | 6910 | return 133333; |
1b1d2716 VS |
6911 | case GC_CLOCK_133_266: |
6912 | case GC_CLOCK_133_266_2: | |
6913 | case GC_CLOCK_166_266: | |
6914 | return 266667; | |
e70236a8 | 6915 | } |
79e53945 | 6916 | |
e70236a8 JB |
6917 | /* Shouldn't happen */ |
6918 | return 0; | |
6919 | } | |
79e53945 | 6920 | |
e70236a8 JB |
6921 | static int i830_get_display_clock_speed(struct drm_device *dev) |
6922 | { | |
e907f170 | 6923 | return 133333; |
79e53945 JB |
6924 | } |
6925 | ||
34edce2f VS |
6926 | static unsigned int intel_hpll_vco(struct drm_device *dev) |
6927 | { | |
6928 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6929 | static const unsigned int blb_vco[8] = { | |
6930 | [0] = 3200000, | |
6931 | [1] = 4000000, | |
6932 | [2] = 5333333, | |
6933 | [3] = 4800000, | |
6934 | [4] = 6400000, | |
6935 | }; | |
6936 | static const unsigned int pnv_vco[8] = { | |
6937 | [0] = 3200000, | |
6938 | [1] = 4000000, | |
6939 | [2] = 5333333, | |
6940 | [3] = 4800000, | |
6941 | [4] = 2666667, | |
6942 | }; | |
6943 | static const unsigned int cl_vco[8] = { | |
6944 | [0] = 3200000, | |
6945 | [1] = 4000000, | |
6946 | [2] = 5333333, | |
6947 | [3] = 6400000, | |
6948 | [4] = 3333333, | |
6949 | [5] = 3566667, | |
6950 | [6] = 4266667, | |
6951 | }; | |
6952 | static const unsigned int elk_vco[8] = { | |
6953 | [0] = 3200000, | |
6954 | [1] = 4000000, | |
6955 | [2] = 5333333, | |
6956 | [3] = 4800000, | |
6957 | }; | |
6958 | static const unsigned int ctg_vco[8] = { | |
6959 | [0] = 3200000, | |
6960 | [1] = 4000000, | |
6961 | [2] = 5333333, | |
6962 | [3] = 6400000, | |
6963 | [4] = 2666667, | |
6964 | [5] = 4266667, | |
6965 | }; | |
6966 | const unsigned int *vco_table; | |
6967 | unsigned int vco; | |
6968 | uint8_t tmp = 0; | |
6969 | ||
6970 | /* FIXME other chipsets? */ | |
6971 | if (IS_GM45(dev)) | |
6972 | vco_table = ctg_vco; | |
6973 | else if (IS_G4X(dev)) | |
6974 | vco_table = elk_vco; | |
6975 | else if (IS_CRESTLINE(dev)) | |
6976 | vco_table = cl_vco; | |
6977 | else if (IS_PINEVIEW(dev)) | |
6978 | vco_table = pnv_vco; | |
6979 | else if (IS_G33(dev)) | |
6980 | vco_table = blb_vco; | |
6981 | else | |
6982 | return 0; | |
6983 | ||
6984 | tmp = I915_READ(IS_MOBILE(dev) ? HPLLVCO_MOBILE : HPLLVCO); | |
6985 | ||
6986 | vco = vco_table[tmp & 0x7]; | |
6987 | if (vco == 0) | |
6988 | DRM_ERROR("Bad HPLL VCO (HPLLVCO=0x%02x)\n", tmp); | |
6989 | else | |
6990 | DRM_DEBUG_KMS("HPLL VCO %u kHz\n", vco); | |
6991 | ||
6992 | return vco; | |
6993 | } | |
6994 | ||
6995 | static int gm45_get_display_clock_speed(struct drm_device *dev) | |
6996 | { | |
6997 | unsigned int cdclk_sel, vco = intel_hpll_vco(dev); | |
6998 | uint16_t tmp = 0; | |
6999 | ||
7000 | pci_read_config_word(dev->pdev, GCFGC, &tmp); | |
7001 | ||
7002 | cdclk_sel = (tmp >> 12) & 0x1; | |
7003 | ||
7004 | switch (vco) { | |
7005 | case 2666667: | |
7006 | case 4000000: | |
7007 | case 5333333: | |
7008 | return cdclk_sel ? 333333 : 222222; | |
7009 | case 3200000: | |
7010 | return cdclk_sel ? 320000 : 228571; | |
7011 | default: | |
7012 | DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u, CFGC=0x%04x\n", vco, tmp); | |
7013 | return 222222; | |
7014 | } | |
7015 | } | |
7016 | ||
7017 | static int i965gm_get_display_clock_speed(struct drm_device *dev) | |
7018 | { | |
7019 | static const uint8_t div_3200[] = { 16, 10, 8 }; | |
7020 | static const uint8_t div_4000[] = { 20, 12, 10 }; | |
7021 | static const uint8_t div_5333[] = { 24, 16, 14 }; | |
7022 | const uint8_t *div_table; | |
7023 | unsigned int cdclk_sel, vco = intel_hpll_vco(dev); | |
7024 | uint16_t tmp = 0; | |
7025 | ||
7026 | pci_read_config_word(dev->pdev, GCFGC, &tmp); | |
7027 | ||
7028 | cdclk_sel = ((tmp >> 8) & 0x1f) - 1; | |
7029 | ||
7030 | if (cdclk_sel >= ARRAY_SIZE(div_3200)) | |
7031 | goto fail; | |
7032 | ||
7033 | switch (vco) { | |
7034 | case 3200000: | |
7035 | div_table = div_3200; | |
7036 | break; | |
7037 | case 4000000: | |
7038 | div_table = div_4000; | |
7039 | break; | |
7040 | case 5333333: | |
7041 | div_table = div_5333; | |
7042 | break; | |
7043 | default: | |
7044 | goto fail; | |
7045 | } | |
7046 | ||
7047 | return DIV_ROUND_CLOSEST(vco, div_table[cdclk_sel]); | |
7048 | ||
caf4e252 | 7049 | fail: |
34edce2f VS |
7050 | DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u kHz, CFGC=0x%04x\n", vco, tmp); |
7051 | return 200000; | |
7052 | } | |
7053 | ||
7054 | static int g33_get_display_clock_speed(struct drm_device *dev) | |
7055 | { | |
7056 | static const uint8_t div_3200[] = { 12, 10, 8, 7, 5, 16 }; | |
7057 | static const uint8_t div_4000[] = { 14, 12, 10, 8, 6, 20 }; | |
7058 | static const uint8_t div_4800[] = { 20, 14, 12, 10, 8, 24 }; | |
7059 | static const uint8_t div_5333[] = { 20, 16, 12, 12, 8, 28 }; | |
7060 | const uint8_t *div_table; | |
7061 | unsigned int cdclk_sel, vco = intel_hpll_vco(dev); | |
7062 | uint16_t tmp = 0; | |
7063 | ||
7064 | pci_read_config_word(dev->pdev, GCFGC, &tmp); | |
7065 | ||
7066 | cdclk_sel = (tmp >> 4) & 0x7; | |
7067 | ||
7068 | if (cdclk_sel >= ARRAY_SIZE(div_3200)) | |
7069 | goto fail; | |
7070 | ||
7071 | switch (vco) { | |
7072 | case 3200000: | |
7073 | div_table = div_3200; | |
7074 | break; | |
7075 | case 4000000: | |
7076 | div_table = div_4000; | |
7077 | break; | |
7078 | case 4800000: | |
7079 | div_table = div_4800; | |
7080 | break; | |
7081 | case 5333333: | |
7082 | div_table = div_5333; | |
7083 | break; | |
7084 | default: | |
7085 | goto fail; | |
7086 | } | |
7087 | ||
7088 | return DIV_ROUND_CLOSEST(vco, div_table[cdclk_sel]); | |
7089 | ||
caf4e252 | 7090 | fail: |
34edce2f VS |
7091 | DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u kHz, CFGC=0x%08x\n", vco, tmp); |
7092 | return 190476; | |
7093 | } | |
7094 | ||
2c07245f | 7095 | static void |
a65851af | 7096 | intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den) |
2c07245f | 7097 | { |
a65851af VS |
7098 | while (*num > DATA_LINK_M_N_MASK || |
7099 | *den > DATA_LINK_M_N_MASK) { | |
2c07245f ZW |
7100 | *num >>= 1; |
7101 | *den >>= 1; | |
7102 | } | |
7103 | } | |
7104 | ||
a65851af VS |
7105 | static void compute_m_n(unsigned int m, unsigned int n, |
7106 | uint32_t *ret_m, uint32_t *ret_n) | |
7107 | { | |
7108 | *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX); | |
7109 | *ret_m = div_u64((uint64_t) m * *ret_n, n); | |
7110 | intel_reduce_m_n_ratio(ret_m, ret_n); | |
7111 | } | |
7112 | ||
e69d0bc1 DV |
7113 | void |
7114 | intel_link_compute_m_n(int bits_per_pixel, int nlanes, | |
7115 | int pixel_clock, int link_clock, | |
7116 | struct intel_link_m_n *m_n) | |
2c07245f | 7117 | { |
e69d0bc1 | 7118 | m_n->tu = 64; |
a65851af VS |
7119 | |
7120 | compute_m_n(bits_per_pixel * pixel_clock, | |
7121 | link_clock * nlanes * 8, | |
7122 | &m_n->gmch_m, &m_n->gmch_n); | |
7123 | ||
7124 | compute_m_n(pixel_clock, link_clock, | |
7125 | &m_n->link_m, &m_n->link_n); | |
2c07245f ZW |
7126 | } |
7127 | ||
a7615030 CW |
7128 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
7129 | { | |
d330a953 JN |
7130 | if (i915.panel_use_ssc >= 0) |
7131 | return i915.panel_use_ssc != 0; | |
41aa3448 | 7132 | return dev_priv->vbt.lvds_use_ssc |
435793df | 7133 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
7134 | } |
7135 | ||
a93e255f ACO |
7136 | static int i9xx_get_refclk(const struct intel_crtc_state *crtc_state, |
7137 | int num_connectors) | |
c65d77d8 | 7138 | { |
a93e255f | 7139 | struct drm_device *dev = crtc_state->base.crtc->dev; |
c65d77d8 JB |
7140 | struct drm_i915_private *dev_priv = dev->dev_private; |
7141 | int refclk; | |
7142 | ||
a93e255f ACO |
7143 | WARN_ON(!crtc_state->base.state); |
7144 | ||
5ab7b0b7 | 7145 | if (IS_VALLEYVIEW(dev) || IS_BROXTON(dev)) { |
9a0ea498 | 7146 | refclk = 100000; |
a93e255f | 7147 | } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
c65d77d8 | 7148 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
e91e941b VS |
7149 | refclk = dev_priv->vbt.lvds_ssc_freq; |
7150 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk); | |
c65d77d8 JB |
7151 | } else if (!IS_GEN2(dev)) { |
7152 | refclk = 96000; | |
7153 | } else { | |
7154 | refclk = 48000; | |
7155 | } | |
7156 | ||
7157 | return refclk; | |
7158 | } | |
7159 | ||
7429e9d4 | 7160 | static uint32_t pnv_dpll_compute_fp(struct dpll *dpll) |
c65d77d8 | 7161 | { |
7df00d7a | 7162 | return (1 << dpll->n) << 16 | dpll->m2; |
7429e9d4 | 7163 | } |
f47709a9 | 7164 | |
7429e9d4 DV |
7165 | static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll) |
7166 | { | |
7167 | return dpll->n << 16 | dpll->m1 << 8 | dpll->m2; | |
c65d77d8 JB |
7168 | } |
7169 | ||
f47709a9 | 7170 | static void i9xx_update_pll_dividers(struct intel_crtc *crtc, |
190f68c5 | 7171 | struct intel_crtc_state *crtc_state, |
a7516a05 JB |
7172 | intel_clock_t *reduced_clock) |
7173 | { | |
f47709a9 | 7174 | struct drm_device *dev = crtc->base.dev; |
a7516a05 JB |
7175 | u32 fp, fp2 = 0; |
7176 | ||
7177 | if (IS_PINEVIEW(dev)) { | |
190f68c5 | 7178 | fp = pnv_dpll_compute_fp(&crtc_state->dpll); |
a7516a05 | 7179 | if (reduced_clock) |
7429e9d4 | 7180 | fp2 = pnv_dpll_compute_fp(reduced_clock); |
a7516a05 | 7181 | } else { |
190f68c5 | 7182 | fp = i9xx_dpll_compute_fp(&crtc_state->dpll); |
a7516a05 | 7183 | if (reduced_clock) |
7429e9d4 | 7184 | fp2 = i9xx_dpll_compute_fp(reduced_clock); |
a7516a05 JB |
7185 | } |
7186 | ||
190f68c5 | 7187 | crtc_state->dpll_hw_state.fp0 = fp; |
a7516a05 | 7188 | |
f47709a9 | 7189 | crtc->lowfreq_avail = false; |
a93e255f | 7190 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
ab585dea | 7191 | reduced_clock) { |
190f68c5 | 7192 | crtc_state->dpll_hw_state.fp1 = fp2; |
f47709a9 | 7193 | crtc->lowfreq_avail = true; |
a7516a05 | 7194 | } else { |
190f68c5 | 7195 | crtc_state->dpll_hw_state.fp1 = fp; |
a7516a05 JB |
7196 | } |
7197 | } | |
7198 | ||
5e69f97f CML |
7199 | static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe |
7200 | pipe) | |
89b667f8 JB |
7201 | { |
7202 | u32 reg_val; | |
7203 | ||
7204 | /* | |
7205 | * PLLB opamp always calibrates to max value of 0x3f, force enable it | |
7206 | * and set it to a reasonable value instead. | |
7207 | */ | |
ab3c759a | 7208 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1)); |
89b667f8 JB |
7209 | reg_val &= 0xffffff00; |
7210 | reg_val |= 0x00000030; | |
ab3c759a | 7211 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); |
89b667f8 | 7212 | |
ab3c759a | 7213 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); |
89b667f8 JB |
7214 | reg_val &= 0x8cffffff; |
7215 | reg_val = 0x8c000000; | |
ab3c759a | 7216 | vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); |
89b667f8 | 7217 | |
ab3c759a | 7218 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1)); |
89b667f8 | 7219 | reg_val &= 0xffffff00; |
ab3c759a | 7220 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); |
89b667f8 | 7221 | |
ab3c759a | 7222 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); |
89b667f8 JB |
7223 | reg_val &= 0x00ffffff; |
7224 | reg_val |= 0xb0000000; | |
ab3c759a | 7225 | vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); |
89b667f8 JB |
7226 | } |
7227 | ||
b551842d DV |
7228 | static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc, |
7229 | struct intel_link_m_n *m_n) | |
7230 | { | |
7231 | struct drm_device *dev = crtc->base.dev; | |
7232 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7233 | int pipe = crtc->pipe; | |
7234 | ||
e3b95f1e DV |
7235 | I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
7236 | I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n); | |
7237 | I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m); | |
7238 | I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n); | |
b551842d DV |
7239 | } |
7240 | ||
7241 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, | |
f769cd24 VK |
7242 | struct intel_link_m_n *m_n, |
7243 | struct intel_link_m_n *m2_n2) | |
b551842d DV |
7244 | { |
7245 | struct drm_device *dev = crtc->base.dev; | |
7246 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7247 | int pipe = crtc->pipe; | |
6e3c9717 | 7248 | enum transcoder transcoder = crtc->config->cpu_transcoder; |
b551842d DV |
7249 | |
7250 | if (INTEL_INFO(dev)->gen >= 5) { | |
7251 | I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m); | |
7252 | I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n); | |
7253 | I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m); | |
7254 | I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n); | |
f769cd24 VK |
7255 | /* M2_N2 registers to be set only for gen < 8 (M2_N2 available |
7256 | * for gen < 8) and if DRRS is supported (to make sure the | |
7257 | * registers are not unnecessarily accessed). | |
7258 | */ | |
44395bfe | 7259 | if (m2_n2 && (IS_CHERRYVIEW(dev) || INTEL_INFO(dev)->gen < 8) && |
6e3c9717 | 7260 | crtc->config->has_drrs) { |
f769cd24 VK |
7261 | I915_WRITE(PIPE_DATA_M2(transcoder), |
7262 | TU_SIZE(m2_n2->tu) | m2_n2->gmch_m); | |
7263 | I915_WRITE(PIPE_DATA_N2(transcoder), m2_n2->gmch_n); | |
7264 | I915_WRITE(PIPE_LINK_M2(transcoder), m2_n2->link_m); | |
7265 | I915_WRITE(PIPE_LINK_N2(transcoder), m2_n2->link_n); | |
7266 | } | |
b551842d | 7267 | } else { |
e3b95f1e DV |
7268 | I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
7269 | I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n); | |
7270 | I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m); | |
7271 | I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n); | |
b551842d DV |
7272 | } |
7273 | } | |
7274 | ||
fe3cd48d | 7275 | void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n) |
03afc4a2 | 7276 | { |
fe3cd48d R |
7277 | struct intel_link_m_n *dp_m_n, *dp_m2_n2 = NULL; |
7278 | ||
7279 | if (m_n == M1_N1) { | |
7280 | dp_m_n = &crtc->config->dp_m_n; | |
7281 | dp_m2_n2 = &crtc->config->dp_m2_n2; | |
7282 | } else if (m_n == M2_N2) { | |
7283 | ||
7284 | /* | |
7285 | * M2_N2 registers are not supported. Hence m2_n2 divider value | |
7286 | * needs to be programmed into M1_N1. | |
7287 | */ | |
7288 | dp_m_n = &crtc->config->dp_m2_n2; | |
7289 | } else { | |
7290 | DRM_ERROR("Unsupported divider value\n"); | |
7291 | return; | |
7292 | } | |
7293 | ||
6e3c9717 ACO |
7294 | if (crtc->config->has_pch_encoder) |
7295 | intel_pch_transcoder_set_m_n(crtc, &crtc->config->dp_m_n); | |
03afc4a2 | 7296 | else |
fe3cd48d | 7297 | intel_cpu_transcoder_set_m_n(crtc, dp_m_n, dp_m2_n2); |
03afc4a2 DV |
7298 | } |
7299 | ||
251ac862 DV |
7300 | static void vlv_compute_dpll(struct intel_crtc *crtc, |
7301 | struct intel_crtc_state *pipe_config) | |
bdd4b6a6 DV |
7302 | { |
7303 | u32 dpll, dpll_md; | |
7304 | ||
7305 | /* | |
7306 | * Enable DPIO clock input. We should never disable the reference | |
7307 | * clock for pipe B, since VGA hotplug / manual detection depends | |
7308 | * on it. | |
7309 | */ | |
60bfe44f VS |
7310 | dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REF_CLK_ENABLE_VLV | |
7311 | DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_REF_CLK_VLV; | |
bdd4b6a6 DV |
7312 | /* We should never disable this, set it here for state tracking */ |
7313 | if (crtc->pipe == PIPE_B) | |
7314 | dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
7315 | dpll |= DPLL_VCO_ENABLE; | |
d288f65f | 7316 | pipe_config->dpll_hw_state.dpll = dpll; |
bdd4b6a6 | 7317 | |
d288f65f | 7318 | dpll_md = (pipe_config->pixel_multiplier - 1) |
bdd4b6a6 | 7319 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
d288f65f | 7320 | pipe_config->dpll_hw_state.dpll_md = dpll_md; |
bdd4b6a6 DV |
7321 | } |
7322 | ||
d288f65f | 7323 | static void vlv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 7324 | const struct intel_crtc_state *pipe_config) |
a0c4da24 | 7325 | { |
f47709a9 | 7326 | struct drm_device *dev = crtc->base.dev; |
a0c4da24 | 7327 | struct drm_i915_private *dev_priv = dev->dev_private; |
f47709a9 | 7328 | int pipe = crtc->pipe; |
bdd4b6a6 | 7329 | u32 mdiv; |
a0c4da24 | 7330 | u32 bestn, bestm1, bestm2, bestp1, bestp2; |
bdd4b6a6 | 7331 | u32 coreclk, reg_val; |
a0c4da24 | 7332 | |
a580516d | 7333 | mutex_lock(&dev_priv->sb_lock); |
09153000 | 7334 | |
d288f65f VS |
7335 | bestn = pipe_config->dpll.n; |
7336 | bestm1 = pipe_config->dpll.m1; | |
7337 | bestm2 = pipe_config->dpll.m2; | |
7338 | bestp1 = pipe_config->dpll.p1; | |
7339 | bestp2 = pipe_config->dpll.p2; | |
a0c4da24 | 7340 | |
89b667f8 JB |
7341 | /* See eDP HDMI DPIO driver vbios notes doc */ |
7342 | ||
7343 | /* PLL B needs special handling */ | |
bdd4b6a6 | 7344 | if (pipe == PIPE_B) |
5e69f97f | 7345 | vlv_pllb_recal_opamp(dev_priv, pipe); |
89b667f8 JB |
7346 | |
7347 | /* Set up Tx target for periodic Rcomp update */ | |
ab3c759a | 7348 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f); |
89b667f8 JB |
7349 | |
7350 | /* Disable target IRef on PLL */ | |
ab3c759a | 7351 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe)); |
89b667f8 | 7352 | reg_val &= 0x00ffffff; |
ab3c759a | 7353 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val); |
89b667f8 JB |
7354 | |
7355 | /* Disable fast lock */ | |
ab3c759a | 7356 | vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610); |
89b667f8 JB |
7357 | |
7358 | /* Set idtafcrecal before PLL is enabled */ | |
a0c4da24 JB |
7359 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); |
7360 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
7361 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
a0c4da24 | 7362 | mdiv |= (1 << DPIO_K_SHIFT); |
7df5080b JB |
7363 | |
7364 | /* | |
7365 | * Post divider depends on pixel clock rate, DAC vs digital (and LVDS, | |
7366 | * but we don't support that). | |
7367 | * Note: don't use the DAC post divider as it seems unstable. | |
7368 | */ | |
7369 | mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT); | |
ab3c759a | 7370 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv); |
a0c4da24 | 7371 | |
a0c4da24 | 7372 | mdiv |= DPIO_ENABLE_CALIBRATION; |
ab3c759a | 7373 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv); |
a0c4da24 | 7374 | |
89b667f8 | 7375 | /* Set HBR and RBR LPF coefficients */ |
d288f65f | 7376 | if (pipe_config->port_clock == 162000 || |
409ee761 ACO |
7377 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG) || |
7378 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
ab3c759a | 7379 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe), |
885b0120 | 7380 | 0x009f0003); |
89b667f8 | 7381 | else |
ab3c759a | 7382 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe), |
89b667f8 JB |
7383 | 0x00d0000f); |
7384 | ||
681a8504 | 7385 | if (pipe_config->has_dp_encoder) { |
89b667f8 | 7386 | /* Use SSC source */ |
bdd4b6a6 | 7387 | if (pipe == PIPE_A) |
ab3c759a | 7388 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7389 | 0x0df40000); |
7390 | else | |
ab3c759a | 7391 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7392 | 0x0df70000); |
7393 | } else { /* HDMI or VGA */ | |
7394 | /* Use bend source */ | |
bdd4b6a6 | 7395 | if (pipe == PIPE_A) |
ab3c759a | 7396 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7397 | 0x0df70000); |
7398 | else | |
ab3c759a | 7399 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7400 | 0x0df40000); |
7401 | } | |
a0c4da24 | 7402 | |
ab3c759a | 7403 | coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe)); |
89b667f8 | 7404 | coreclk = (coreclk & 0x0000ff00) | 0x01c00000; |
409ee761 ACO |
7405 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
7406 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) | |
89b667f8 | 7407 | coreclk |= 0x01000000; |
ab3c759a | 7408 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk); |
a0c4da24 | 7409 | |
ab3c759a | 7410 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000); |
a580516d | 7411 | mutex_unlock(&dev_priv->sb_lock); |
a0c4da24 JB |
7412 | } |
7413 | ||
251ac862 DV |
7414 | static void chv_compute_dpll(struct intel_crtc *crtc, |
7415 | struct intel_crtc_state *pipe_config) | |
1ae0d137 | 7416 | { |
60bfe44f VS |
7417 | pipe_config->dpll_hw_state.dpll = DPLL_SSC_REF_CLK_CHV | |
7418 | DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS | | |
1ae0d137 VS |
7419 | DPLL_VCO_ENABLE; |
7420 | if (crtc->pipe != PIPE_A) | |
d288f65f | 7421 | pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; |
1ae0d137 | 7422 | |
d288f65f VS |
7423 | pipe_config->dpll_hw_state.dpll_md = |
7424 | (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
1ae0d137 VS |
7425 | } |
7426 | ||
d288f65f | 7427 | static void chv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 7428 | const struct intel_crtc_state *pipe_config) |
9d556c99 CML |
7429 | { |
7430 | struct drm_device *dev = crtc->base.dev; | |
7431 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7432 | int pipe = crtc->pipe; | |
7433 | int dpll_reg = DPLL(crtc->pipe); | |
7434 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
9cbe40c1 | 7435 | u32 loopfilter, tribuf_calcntr; |
9d556c99 | 7436 | u32 bestn, bestm1, bestm2, bestp1, bestp2, bestm2_frac; |
a945ce7e | 7437 | u32 dpio_val; |
9cbe40c1 | 7438 | int vco; |
9d556c99 | 7439 | |
d288f65f VS |
7440 | bestn = pipe_config->dpll.n; |
7441 | bestm2_frac = pipe_config->dpll.m2 & 0x3fffff; | |
7442 | bestm1 = pipe_config->dpll.m1; | |
7443 | bestm2 = pipe_config->dpll.m2 >> 22; | |
7444 | bestp1 = pipe_config->dpll.p1; | |
7445 | bestp2 = pipe_config->dpll.p2; | |
9cbe40c1 | 7446 | vco = pipe_config->dpll.vco; |
a945ce7e | 7447 | dpio_val = 0; |
9cbe40c1 | 7448 | loopfilter = 0; |
9d556c99 CML |
7449 | |
7450 | /* | |
7451 | * Enable Refclk and SSC | |
7452 | */ | |
a11b0703 | 7453 | I915_WRITE(dpll_reg, |
d288f65f | 7454 | pipe_config->dpll_hw_state.dpll & ~DPLL_VCO_ENABLE); |
a11b0703 | 7455 | |
a580516d | 7456 | mutex_lock(&dev_priv->sb_lock); |
9d556c99 | 7457 | |
9d556c99 CML |
7458 | /* p1 and p2 divider */ |
7459 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW13(port), | |
7460 | 5 << DPIO_CHV_S1_DIV_SHIFT | | |
7461 | bestp1 << DPIO_CHV_P1_DIV_SHIFT | | |
7462 | bestp2 << DPIO_CHV_P2_DIV_SHIFT | | |
7463 | 1 << DPIO_CHV_K_DIV_SHIFT); | |
7464 | ||
7465 | /* Feedback post-divider - m2 */ | |
7466 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW0(port), bestm2); | |
7467 | ||
7468 | /* Feedback refclk divider - n and m1 */ | |
7469 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW1(port), | |
7470 | DPIO_CHV_M1_DIV_BY_2 | | |
7471 | 1 << DPIO_CHV_N_DIV_SHIFT); | |
7472 | ||
7473 | /* M2 fraction division */ | |
a945ce7e VP |
7474 | if (bestm2_frac) |
7475 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW2(port), bestm2_frac); | |
9d556c99 CML |
7476 | |
7477 | /* M2 fraction division enable */ | |
a945ce7e VP |
7478 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port)); |
7479 | dpio_val &= ~(DPIO_CHV_FEEDFWD_GAIN_MASK | DPIO_CHV_FRAC_DIV_EN); | |
7480 | dpio_val |= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT); | |
7481 | if (bestm2_frac) | |
7482 | dpio_val |= DPIO_CHV_FRAC_DIV_EN; | |
7483 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW3(port), dpio_val); | |
9d556c99 | 7484 | |
de3a0fde VP |
7485 | /* Program digital lock detect threshold */ |
7486 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW9(port)); | |
7487 | dpio_val &= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK | | |
7488 | DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE); | |
7489 | dpio_val |= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT); | |
7490 | if (!bestm2_frac) | |
7491 | dpio_val |= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE; | |
7492 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW9(port), dpio_val); | |
7493 | ||
9d556c99 | 7494 | /* Loop filter */ |
9cbe40c1 VP |
7495 | if (vco == 5400000) { |
7496 | loopfilter |= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7497 | loopfilter |= (0x8 << DPIO_CHV_INT_COEFF_SHIFT); | |
7498 | loopfilter |= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7499 | tribuf_calcntr = 0x9; | |
7500 | } else if (vco <= 6200000) { | |
7501 | loopfilter |= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7502 | loopfilter |= (0xB << DPIO_CHV_INT_COEFF_SHIFT); | |
7503 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7504 | tribuf_calcntr = 0x9; | |
7505 | } else if (vco <= 6480000) { | |
7506 | loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7507 | loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT); | |
7508 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7509 | tribuf_calcntr = 0x8; | |
7510 | } else { | |
7511 | /* Not supported. Apply the same limits as in the max case */ | |
7512 | loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7513 | loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT); | |
7514 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7515 | tribuf_calcntr = 0; | |
7516 | } | |
9d556c99 CML |
7517 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW6(port), loopfilter); |
7518 | ||
968040b2 | 7519 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW8(port)); |
9cbe40c1 VP |
7520 | dpio_val &= ~DPIO_CHV_TDC_TARGET_CNT_MASK; |
7521 | dpio_val |= (tribuf_calcntr << DPIO_CHV_TDC_TARGET_CNT_SHIFT); | |
7522 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW8(port), dpio_val); | |
7523 | ||
9d556c99 CML |
7524 | /* AFC Recal */ |
7525 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), | |
7526 | vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)) | | |
7527 | DPIO_AFC_RECAL); | |
7528 | ||
a580516d | 7529 | mutex_unlock(&dev_priv->sb_lock); |
9d556c99 CML |
7530 | } |
7531 | ||
d288f65f VS |
7532 | /** |
7533 | * vlv_force_pll_on - forcibly enable just the PLL | |
7534 | * @dev_priv: i915 private structure | |
7535 | * @pipe: pipe PLL to enable | |
7536 | * @dpll: PLL configuration | |
7537 | * | |
7538 | * Enable the PLL for @pipe using the supplied @dpll config. To be used | |
7539 | * in cases where we need the PLL enabled even when @pipe is not going to | |
7540 | * be enabled. | |
7541 | */ | |
7542 | void vlv_force_pll_on(struct drm_device *dev, enum pipe pipe, | |
7543 | const struct dpll *dpll) | |
7544 | { | |
7545 | struct intel_crtc *crtc = | |
7546 | to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe)); | |
5cec258b | 7547 | struct intel_crtc_state pipe_config = { |
a93e255f | 7548 | .base.crtc = &crtc->base, |
d288f65f VS |
7549 | .pixel_multiplier = 1, |
7550 | .dpll = *dpll, | |
7551 | }; | |
7552 | ||
7553 | if (IS_CHERRYVIEW(dev)) { | |
251ac862 | 7554 | chv_compute_dpll(crtc, &pipe_config); |
d288f65f VS |
7555 | chv_prepare_pll(crtc, &pipe_config); |
7556 | chv_enable_pll(crtc, &pipe_config); | |
7557 | } else { | |
251ac862 | 7558 | vlv_compute_dpll(crtc, &pipe_config); |
d288f65f VS |
7559 | vlv_prepare_pll(crtc, &pipe_config); |
7560 | vlv_enable_pll(crtc, &pipe_config); | |
7561 | } | |
7562 | } | |
7563 | ||
7564 | /** | |
7565 | * vlv_force_pll_off - forcibly disable just the PLL | |
7566 | * @dev_priv: i915 private structure | |
7567 | * @pipe: pipe PLL to disable | |
7568 | * | |
7569 | * Disable the PLL for @pipe. To be used in cases where we need | |
7570 | * the PLL enabled even when @pipe is not going to be enabled. | |
7571 | */ | |
7572 | void vlv_force_pll_off(struct drm_device *dev, enum pipe pipe) | |
7573 | { | |
7574 | if (IS_CHERRYVIEW(dev)) | |
7575 | chv_disable_pll(to_i915(dev), pipe); | |
7576 | else | |
7577 | vlv_disable_pll(to_i915(dev), pipe); | |
7578 | } | |
7579 | ||
251ac862 DV |
7580 | static void i9xx_compute_dpll(struct intel_crtc *crtc, |
7581 | struct intel_crtc_state *crtc_state, | |
7582 | intel_clock_t *reduced_clock, | |
7583 | int num_connectors) | |
eb1cbe48 | 7584 | { |
f47709a9 | 7585 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 7586 | struct drm_i915_private *dev_priv = dev->dev_private; |
eb1cbe48 DV |
7587 | u32 dpll; |
7588 | bool is_sdvo; | |
190f68c5 | 7589 | struct dpll *clock = &crtc_state->dpll; |
eb1cbe48 | 7590 | |
190f68c5 | 7591 | i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock); |
2a8f64ca | 7592 | |
a93e255f ACO |
7593 | is_sdvo = intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_SDVO) || |
7594 | intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_HDMI); | |
eb1cbe48 DV |
7595 | |
7596 | dpll = DPLL_VGA_MODE_DIS; | |
7597 | ||
a93e255f | 7598 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) |
eb1cbe48 DV |
7599 | dpll |= DPLLB_MODE_LVDS; |
7600 | else | |
7601 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
6cc5f341 | 7602 | |
ef1b460d | 7603 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
190f68c5 | 7604 | dpll |= (crtc_state->pixel_multiplier - 1) |
198a037f | 7605 | << SDVO_MULTIPLIER_SHIFT_HIRES; |
eb1cbe48 | 7606 | } |
198a037f DV |
7607 | |
7608 | if (is_sdvo) | |
4a33e48d | 7609 | dpll |= DPLL_SDVO_HIGH_SPEED; |
198a037f | 7610 | |
190f68c5 | 7611 | if (crtc_state->has_dp_encoder) |
4a33e48d | 7612 | dpll |= DPLL_SDVO_HIGH_SPEED; |
eb1cbe48 DV |
7613 | |
7614 | /* compute bitmask from p1 value */ | |
7615 | if (IS_PINEVIEW(dev)) | |
7616 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
7617 | else { | |
7618 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
7619 | if (IS_G4X(dev) && reduced_clock) | |
7620 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
7621 | } | |
7622 | switch (clock->p2) { | |
7623 | case 5: | |
7624 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
7625 | break; | |
7626 | case 7: | |
7627 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
7628 | break; | |
7629 | case 10: | |
7630 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
7631 | break; | |
7632 | case 14: | |
7633 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
7634 | break; | |
7635 | } | |
7636 | if (INTEL_INFO(dev)->gen >= 4) | |
7637 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
7638 | ||
190f68c5 | 7639 | if (crtc_state->sdvo_tv_clock) |
eb1cbe48 | 7640 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
a93e255f | 7641 | else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
7642 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
7643 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
7644 | else | |
7645 | dpll |= PLL_REF_INPUT_DREFCLK; | |
7646 | ||
7647 | dpll |= DPLL_VCO_ENABLE; | |
190f68c5 | 7648 | crtc_state->dpll_hw_state.dpll = dpll; |
8bcc2795 | 7649 | |
eb1cbe48 | 7650 | if (INTEL_INFO(dev)->gen >= 4) { |
190f68c5 | 7651 | u32 dpll_md = (crtc_state->pixel_multiplier - 1) |
ef1b460d | 7652 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
190f68c5 | 7653 | crtc_state->dpll_hw_state.dpll_md = dpll_md; |
eb1cbe48 DV |
7654 | } |
7655 | } | |
7656 | ||
251ac862 DV |
7657 | static void i8xx_compute_dpll(struct intel_crtc *crtc, |
7658 | struct intel_crtc_state *crtc_state, | |
7659 | intel_clock_t *reduced_clock, | |
7660 | int num_connectors) | |
eb1cbe48 | 7661 | { |
f47709a9 | 7662 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 7663 | struct drm_i915_private *dev_priv = dev->dev_private; |
eb1cbe48 | 7664 | u32 dpll; |
190f68c5 | 7665 | struct dpll *clock = &crtc_state->dpll; |
eb1cbe48 | 7666 | |
190f68c5 | 7667 | i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock); |
2a8f64ca | 7668 | |
eb1cbe48 DV |
7669 | dpll = DPLL_VGA_MODE_DIS; |
7670 | ||
a93e255f | 7671 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
eb1cbe48 DV |
7672 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
7673 | } else { | |
7674 | if (clock->p1 == 2) | |
7675 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
7676 | else | |
7677 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
7678 | if (clock->p2 == 4) | |
7679 | dpll |= PLL_P2_DIVIDE_BY_4; | |
7680 | } | |
7681 | ||
a93e255f | 7682 | if (!IS_I830(dev) && intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_DVO)) |
4a33e48d DV |
7683 | dpll |= DPLL_DVO_2X_MODE; |
7684 | ||
a93e255f | 7685 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
7686 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
7687 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
7688 | else | |
7689 | dpll |= PLL_REF_INPUT_DREFCLK; | |
7690 | ||
7691 | dpll |= DPLL_VCO_ENABLE; | |
190f68c5 | 7692 | crtc_state->dpll_hw_state.dpll = dpll; |
eb1cbe48 DV |
7693 | } |
7694 | ||
8a654f3b | 7695 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc) |
b0e77b9c PZ |
7696 | { |
7697 | struct drm_device *dev = intel_crtc->base.dev; | |
7698 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7699 | enum pipe pipe = intel_crtc->pipe; | |
6e3c9717 | 7700 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
8a654f3b | 7701 | struct drm_display_mode *adjusted_mode = |
6e3c9717 | 7702 | &intel_crtc->config->base.adjusted_mode; |
1caea6e9 VS |
7703 | uint32_t crtc_vtotal, crtc_vblank_end; |
7704 | int vsyncshift = 0; | |
4d8a62ea DV |
7705 | |
7706 | /* We need to be careful not to changed the adjusted mode, for otherwise | |
7707 | * the hw state checker will get angry at the mismatch. */ | |
7708 | crtc_vtotal = adjusted_mode->crtc_vtotal; | |
7709 | crtc_vblank_end = adjusted_mode->crtc_vblank_end; | |
b0e77b9c | 7710 | |
609aeaca | 7711 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
b0e77b9c | 7712 | /* the chip adds 2 halflines automatically */ |
4d8a62ea DV |
7713 | crtc_vtotal -= 1; |
7714 | crtc_vblank_end -= 1; | |
609aeaca | 7715 | |
409ee761 | 7716 | if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
609aeaca VS |
7717 | vsyncshift = (adjusted_mode->crtc_htotal - 1) / 2; |
7718 | else | |
7719 | vsyncshift = adjusted_mode->crtc_hsync_start - | |
7720 | adjusted_mode->crtc_htotal / 2; | |
1caea6e9 VS |
7721 | if (vsyncshift < 0) |
7722 | vsyncshift += adjusted_mode->crtc_htotal; | |
b0e77b9c PZ |
7723 | } |
7724 | ||
7725 | if (INTEL_INFO(dev)->gen > 3) | |
fe2b8f9d | 7726 | I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift); |
b0e77b9c | 7727 | |
fe2b8f9d | 7728 | I915_WRITE(HTOTAL(cpu_transcoder), |
b0e77b9c PZ |
7729 | (adjusted_mode->crtc_hdisplay - 1) | |
7730 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
fe2b8f9d | 7731 | I915_WRITE(HBLANK(cpu_transcoder), |
b0e77b9c PZ |
7732 | (adjusted_mode->crtc_hblank_start - 1) | |
7733 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
fe2b8f9d | 7734 | I915_WRITE(HSYNC(cpu_transcoder), |
b0e77b9c PZ |
7735 | (adjusted_mode->crtc_hsync_start - 1) | |
7736 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
7737 | ||
fe2b8f9d | 7738 | I915_WRITE(VTOTAL(cpu_transcoder), |
b0e77b9c | 7739 | (adjusted_mode->crtc_vdisplay - 1) | |
4d8a62ea | 7740 | ((crtc_vtotal - 1) << 16)); |
fe2b8f9d | 7741 | I915_WRITE(VBLANK(cpu_transcoder), |
b0e77b9c | 7742 | (adjusted_mode->crtc_vblank_start - 1) | |
4d8a62ea | 7743 | ((crtc_vblank_end - 1) << 16)); |
fe2b8f9d | 7744 | I915_WRITE(VSYNC(cpu_transcoder), |
b0e77b9c PZ |
7745 | (adjusted_mode->crtc_vsync_start - 1) | |
7746 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
7747 | ||
b5e508d4 PZ |
7748 | /* Workaround: when the EDP input selection is B, the VTOTAL_B must be |
7749 | * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is | |
7750 | * documented on the DDI_FUNC_CTL register description, EDP Input Select | |
7751 | * bits. */ | |
7752 | if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP && | |
7753 | (pipe == PIPE_B || pipe == PIPE_C)) | |
7754 | I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder))); | |
7755 | ||
b0e77b9c PZ |
7756 | /* pipesrc controls the size that is scaled from, which should |
7757 | * always be the user's requested size. | |
7758 | */ | |
7759 | I915_WRITE(PIPESRC(pipe), | |
6e3c9717 ACO |
7760 | ((intel_crtc->config->pipe_src_w - 1) << 16) | |
7761 | (intel_crtc->config->pipe_src_h - 1)); | |
b0e77b9c PZ |
7762 | } |
7763 | ||
1bd1bd80 | 7764 | static void intel_get_pipe_timings(struct intel_crtc *crtc, |
5cec258b | 7765 | struct intel_crtc_state *pipe_config) |
1bd1bd80 DV |
7766 | { |
7767 | struct drm_device *dev = crtc->base.dev; | |
7768 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7769 | enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; | |
7770 | uint32_t tmp; | |
7771 | ||
7772 | tmp = I915_READ(HTOTAL(cpu_transcoder)); | |
2d112de7 ACO |
7773 | pipe_config->base.adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1; |
7774 | pipe_config->base.adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7775 | tmp = I915_READ(HBLANK(cpu_transcoder)); |
2d112de7 ACO |
7776 | pipe_config->base.adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1; |
7777 | pipe_config->base.adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7778 | tmp = I915_READ(HSYNC(cpu_transcoder)); |
2d112de7 ACO |
7779 | pipe_config->base.adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1; |
7780 | pipe_config->base.adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 DV |
7781 | |
7782 | tmp = I915_READ(VTOTAL(cpu_transcoder)); | |
2d112de7 ACO |
7783 | pipe_config->base.adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1; |
7784 | pipe_config->base.adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7785 | tmp = I915_READ(VBLANK(cpu_transcoder)); |
2d112de7 ACO |
7786 | pipe_config->base.adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1; |
7787 | pipe_config->base.adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7788 | tmp = I915_READ(VSYNC(cpu_transcoder)); |
2d112de7 ACO |
7789 | pipe_config->base.adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1; |
7790 | pipe_config->base.adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 DV |
7791 | |
7792 | if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) { | |
2d112de7 ACO |
7793 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE; |
7794 | pipe_config->base.adjusted_mode.crtc_vtotal += 1; | |
7795 | pipe_config->base.adjusted_mode.crtc_vblank_end += 1; | |
1bd1bd80 DV |
7796 | } |
7797 | ||
7798 | tmp = I915_READ(PIPESRC(crtc->pipe)); | |
37327abd VS |
7799 | pipe_config->pipe_src_h = (tmp & 0xffff) + 1; |
7800 | pipe_config->pipe_src_w = ((tmp >> 16) & 0xffff) + 1; | |
7801 | ||
2d112de7 ACO |
7802 | pipe_config->base.mode.vdisplay = pipe_config->pipe_src_h; |
7803 | pipe_config->base.mode.hdisplay = pipe_config->pipe_src_w; | |
1bd1bd80 DV |
7804 | } |
7805 | ||
f6a83288 | 7806 | void intel_mode_from_pipe_config(struct drm_display_mode *mode, |
5cec258b | 7807 | struct intel_crtc_state *pipe_config) |
babea61d | 7808 | { |
2d112de7 ACO |
7809 | mode->hdisplay = pipe_config->base.adjusted_mode.crtc_hdisplay; |
7810 | mode->htotal = pipe_config->base.adjusted_mode.crtc_htotal; | |
7811 | mode->hsync_start = pipe_config->base.adjusted_mode.crtc_hsync_start; | |
7812 | mode->hsync_end = pipe_config->base.adjusted_mode.crtc_hsync_end; | |
babea61d | 7813 | |
2d112de7 ACO |
7814 | mode->vdisplay = pipe_config->base.adjusted_mode.crtc_vdisplay; |
7815 | mode->vtotal = pipe_config->base.adjusted_mode.crtc_vtotal; | |
7816 | mode->vsync_start = pipe_config->base.adjusted_mode.crtc_vsync_start; | |
7817 | mode->vsync_end = pipe_config->base.adjusted_mode.crtc_vsync_end; | |
babea61d | 7818 | |
2d112de7 | 7819 | mode->flags = pipe_config->base.adjusted_mode.flags; |
babea61d | 7820 | |
2d112de7 ACO |
7821 | mode->clock = pipe_config->base.adjusted_mode.crtc_clock; |
7822 | mode->flags |= pipe_config->base.adjusted_mode.flags; | |
babea61d JB |
7823 | } |
7824 | ||
84b046f3 DV |
7825 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc) |
7826 | { | |
7827 | struct drm_device *dev = intel_crtc->base.dev; | |
7828 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7829 | uint32_t pipeconf; | |
7830 | ||
9f11a9e4 | 7831 | pipeconf = 0; |
84b046f3 | 7832 | |
b6b5d049 VS |
7833 | if ((intel_crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
7834 | (intel_crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
7835 | pipeconf |= I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE; | |
67c72a12 | 7836 | |
6e3c9717 | 7837 | if (intel_crtc->config->double_wide) |
cf532bb2 | 7838 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
84b046f3 | 7839 | |
ff9ce46e DV |
7840 | /* only g4x and later have fancy bpc/dither controls */ |
7841 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) { | |
ff9ce46e | 7842 | /* Bspec claims that we can't use dithering for 30bpp pipes. */ |
6e3c9717 | 7843 | if (intel_crtc->config->dither && intel_crtc->config->pipe_bpp != 30) |
ff9ce46e | 7844 | pipeconf |= PIPECONF_DITHER_EN | |
84b046f3 | 7845 | PIPECONF_DITHER_TYPE_SP; |
84b046f3 | 7846 | |
6e3c9717 | 7847 | switch (intel_crtc->config->pipe_bpp) { |
ff9ce46e DV |
7848 | case 18: |
7849 | pipeconf |= PIPECONF_6BPC; | |
7850 | break; | |
7851 | case 24: | |
7852 | pipeconf |= PIPECONF_8BPC; | |
7853 | break; | |
7854 | case 30: | |
7855 | pipeconf |= PIPECONF_10BPC; | |
7856 | break; | |
7857 | default: | |
7858 | /* Case prevented by intel_choose_pipe_bpp_dither. */ | |
7859 | BUG(); | |
84b046f3 DV |
7860 | } |
7861 | } | |
7862 | ||
7863 | if (HAS_PIPE_CXSR(dev)) { | |
7864 | if (intel_crtc->lowfreq_avail) { | |
7865 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); | |
7866 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; | |
7867 | } else { | |
7868 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); | |
84b046f3 DV |
7869 | } |
7870 | } | |
7871 | ||
6e3c9717 | 7872 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) { |
efc2cfff | 7873 | if (INTEL_INFO(dev)->gen < 4 || |
409ee761 | 7874 | intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
efc2cfff VS |
7875 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
7876 | else | |
7877 | pipeconf |= PIPECONF_INTERLACE_W_SYNC_SHIFT; | |
7878 | } else | |
84b046f3 DV |
7879 | pipeconf |= PIPECONF_PROGRESSIVE; |
7880 | ||
6e3c9717 | 7881 | if (IS_VALLEYVIEW(dev) && intel_crtc->config->limited_color_range) |
9f11a9e4 | 7882 | pipeconf |= PIPECONF_COLOR_RANGE_SELECT; |
9c8e09b7 | 7883 | |
84b046f3 DV |
7884 | I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf); |
7885 | POSTING_READ(PIPECONF(intel_crtc->pipe)); | |
7886 | } | |
7887 | ||
190f68c5 ACO |
7888 | static int i9xx_crtc_compute_clock(struct intel_crtc *crtc, |
7889 | struct intel_crtc_state *crtc_state) | |
79e53945 | 7890 | { |
c7653199 | 7891 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 7892 | struct drm_i915_private *dev_priv = dev->dev_private; |
c751ce4f | 7893 | int refclk, num_connectors = 0; |
c329a4ec DV |
7894 | intel_clock_t clock; |
7895 | bool ok; | |
7896 | bool is_dsi = false; | |
5eddb70b | 7897 | struct intel_encoder *encoder; |
d4906093 | 7898 | const intel_limit_t *limit; |
55bb9992 | 7899 | struct drm_atomic_state *state = crtc_state->base.state; |
da3ced29 | 7900 | struct drm_connector *connector; |
55bb9992 ACO |
7901 | struct drm_connector_state *connector_state; |
7902 | int i; | |
79e53945 | 7903 | |
dd3cd74a ACO |
7904 | memset(&crtc_state->dpll_hw_state, 0, |
7905 | sizeof(crtc_state->dpll_hw_state)); | |
7906 | ||
da3ced29 | 7907 | for_each_connector_in_state(state, connector, connector_state, i) { |
55bb9992 ACO |
7908 | if (connector_state->crtc != &crtc->base) |
7909 | continue; | |
7910 | ||
7911 | encoder = to_intel_encoder(connector_state->best_encoder); | |
7912 | ||
5eddb70b | 7913 | switch (encoder->type) { |
e9fd1c02 JN |
7914 | case INTEL_OUTPUT_DSI: |
7915 | is_dsi = true; | |
7916 | break; | |
6847d71b PZ |
7917 | default: |
7918 | break; | |
79e53945 | 7919 | } |
43565a06 | 7920 | |
c751ce4f | 7921 | num_connectors++; |
79e53945 JB |
7922 | } |
7923 | ||
f2335330 | 7924 | if (is_dsi) |
5b18e57c | 7925 | return 0; |
f2335330 | 7926 | |
190f68c5 | 7927 | if (!crtc_state->clock_set) { |
a93e255f | 7928 | refclk = i9xx_get_refclk(crtc_state, num_connectors); |
79e53945 | 7929 | |
e9fd1c02 JN |
7930 | /* |
7931 | * Returns a set of divisors for the desired target clock with | |
7932 | * the given refclk, or FALSE. The returned values represent | |
7933 | * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + | |
7934 | * 2) / p1 / p2. | |
7935 | */ | |
a93e255f ACO |
7936 | limit = intel_limit(crtc_state, refclk); |
7937 | ok = dev_priv->display.find_dpll(limit, crtc_state, | |
190f68c5 | 7938 | crtc_state->port_clock, |
e9fd1c02 | 7939 | refclk, NULL, &clock); |
f2335330 | 7940 | if (!ok) { |
e9fd1c02 JN |
7941 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
7942 | return -EINVAL; | |
7943 | } | |
79e53945 | 7944 | |
f2335330 | 7945 | /* Compat-code for transition, will disappear. */ |
190f68c5 ACO |
7946 | crtc_state->dpll.n = clock.n; |
7947 | crtc_state->dpll.m1 = clock.m1; | |
7948 | crtc_state->dpll.m2 = clock.m2; | |
7949 | crtc_state->dpll.p1 = clock.p1; | |
7950 | crtc_state->dpll.p2 = clock.p2; | |
f47709a9 | 7951 | } |
7026d4ac | 7952 | |
e9fd1c02 | 7953 | if (IS_GEN2(dev)) { |
c329a4ec | 7954 | i8xx_compute_dpll(crtc, crtc_state, NULL, |
251ac862 | 7955 | num_connectors); |
9d556c99 | 7956 | } else if (IS_CHERRYVIEW(dev)) { |
251ac862 | 7957 | chv_compute_dpll(crtc, crtc_state); |
e9fd1c02 | 7958 | } else if (IS_VALLEYVIEW(dev)) { |
251ac862 | 7959 | vlv_compute_dpll(crtc, crtc_state); |
e9fd1c02 | 7960 | } else { |
c329a4ec | 7961 | i9xx_compute_dpll(crtc, crtc_state, NULL, |
251ac862 | 7962 | num_connectors); |
e9fd1c02 | 7963 | } |
79e53945 | 7964 | |
c8f7a0db | 7965 | return 0; |
f564048e EA |
7966 | } |
7967 | ||
2fa2fe9a | 7968 | static void i9xx_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 7969 | struct intel_crtc_state *pipe_config) |
2fa2fe9a DV |
7970 | { |
7971 | struct drm_device *dev = crtc->base.dev; | |
7972 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7973 | uint32_t tmp; | |
7974 | ||
dc9e7dec VS |
7975 | if (INTEL_INFO(dev)->gen <= 3 && (IS_I830(dev) || !IS_MOBILE(dev))) |
7976 | return; | |
7977 | ||
2fa2fe9a | 7978 | tmp = I915_READ(PFIT_CONTROL); |
06922821 DV |
7979 | if (!(tmp & PFIT_ENABLE)) |
7980 | return; | |
2fa2fe9a | 7981 | |
06922821 | 7982 | /* Check whether the pfit is attached to our pipe. */ |
2fa2fe9a DV |
7983 | if (INTEL_INFO(dev)->gen < 4) { |
7984 | if (crtc->pipe != PIPE_B) | |
7985 | return; | |
2fa2fe9a DV |
7986 | } else { |
7987 | if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT)) | |
7988 | return; | |
7989 | } | |
7990 | ||
06922821 | 7991 | pipe_config->gmch_pfit.control = tmp; |
2fa2fe9a DV |
7992 | pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS); |
7993 | if (INTEL_INFO(dev)->gen < 5) | |
7994 | pipe_config->gmch_pfit.lvds_border_bits = | |
7995 | I915_READ(LVDS) & LVDS_BORDER_ENABLE; | |
7996 | } | |
7997 | ||
acbec814 | 7998 | static void vlv_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 7999 | struct intel_crtc_state *pipe_config) |
acbec814 JB |
8000 | { |
8001 | struct drm_device *dev = crtc->base.dev; | |
8002 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8003 | int pipe = pipe_config->cpu_transcoder; | |
8004 | intel_clock_t clock; | |
8005 | u32 mdiv; | |
662c6ecb | 8006 | int refclk = 100000; |
acbec814 | 8007 | |
f573de5a SK |
8008 | /* In case of MIPI DPLL will not even be used */ |
8009 | if (!(pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE)) | |
8010 | return; | |
8011 | ||
a580516d | 8012 | mutex_lock(&dev_priv->sb_lock); |
ab3c759a | 8013 | mdiv = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW3(pipe)); |
a580516d | 8014 | mutex_unlock(&dev_priv->sb_lock); |
acbec814 JB |
8015 | |
8016 | clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7; | |
8017 | clock.m2 = mdiv & DPIO_M2DIV_MASK; | |
8018 | clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf; | |
8019 | clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7; | |
8020 | clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f; | |
8021 | ||
dccbea3b | 8022 | pipe_config->port_clock = vlv_calc_dpll_params(refclk, &clock); |
acbec814 JB |
8023 | } |
8024 | ||
5724dbd1 DL |
8025 | static void |
8026 | i9xx_get_initial_plane_config(struct intel_crtc *crtc, | |
8027 | struct intel_initial_plane_config *plane_config) | |
1ad292b5 JB |
8028 | { |
8029 | struct drm_device *dev = crtc->base.dev; | |
8030 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8031 | u32 val, base, offset; | |
8032 | int pipe = crtc->pipe, plane = crtc->plane; | |
8033 | int fourcc, pixel_format; | |
6761dd31 | 8034 | unsigned int aligned_height; |
b113d5ee | 8035 | struct drm_framebuffer *fb; |
1b842c89 | 8036 | struct intel_framebuffer *intel_fb; |
1ad292b5 | 8037 | |
42a7b088 DL |
8038 | val = I915_READ(DSPCNTR(plane)); |
8039 | if (!(val & DISPLAY_PLANE_ENABLE)) | |
8040 | return; | |
8041 | ||
d9806c9f | 8042 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 8043 | if (!intel_fb) { |
1ad292b5 JB |
8044 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
8045 | return; | |
8046 | } | |
8047 | ||
1b842c89 DL |
8048 | fb = &intel_fb->base; |
8049 | ||
18c5247e DV |
8050 | if (INTEL_INFO(dev)->gen >= 4) { |
8051 | if (val & DISPPLANE_TILED) { | |
49af449b | 8052 | plane_config->tiling = I915_TILING_X; |
18c5247e DV |
8053 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; |
8054 | } | |
8055 | } | |
1ad292b5 JB |
8056 | |
8057 | pixel_format = val & DISPPLANE_PIXFORMAT_MASK; | |
b35d63fa | 8058 | fourcc = i9xx_format_to_fourcc(pixel_format); |
b113d5ee DL |
8059 | fb->pixel_format = fourcc; |
8060 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
1ad292b5 JB |
8061 | |
8062 | if (INTEL_INFO(dev)->gen >= 4) { | |
49af449b | 8063 | if (plane_config->tiling) |
1ad292b5 JB |
8064 | offset = I915_READ(DSPTILEOFF(plane)); |
8065 | else | |
8066 | offset = I915_READ(DSPLINOFF(plane)); | |
8067 | base = I915_READ(DSPSURF(plane)) & 0xfffff000; | |
8068 | } else { | |
8069 | base = I915_READ(DSPADDR(plane)); | |
8070 | } | |
8071 | plane_config->base = base; | |
8072 | ||
8073 | val = I915_READ(PIPESRC(pipe)); | |
b113d5ee DL |
8074 | fb->width = ((val >> 16) & 0xfff) + 1; |
8075 | fb->height = ((val >> 0) & 0xfff) + 1; | |
1ad292b5 JB |
8076 | |
8077 | val = I915_READ(DSPSTRIDE(pipe)); | |
b113d5ee | 8078 | fb->pitches[0] = val & 0xffffffc0; |
1ad292b5 | 8079 | |
b113d5ee | 8080 | aligned_height = intel_fb_align_height(dev, fb->height, |
091df6cb DV |
8081 | fb->pixel_format, |
8082 | fb->modifier[0]); | |
1ad292b5 | 8083 | |
f37b5c2b | 8084 | plane_config->size = fb->pitches[0] * aligned_height; |
1ad292b5 | 8085 | |
2844a921 DL |
8086 | DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", |
8087 | pipe_name(pipe), plane, fb->width, fb->height, | |
8088 | fb->bits_per_pixel, base, fb->pitches[0], | |
8089 | plane_config->size); | |
1ad292b5 | 8090 | |
2d14030b | 8091 | plane_config->fb = intel_fb; |
1ad292b5 JB |
8092 | } |
8093 | ||
70b23a98 | 8094 | static void chv_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 8095 | struct intel_crtc_state *pipe_config) |
70b23a98 VS |
8096 | { |
8097 | struct drm_device *dev = crtc->base.dev; | |
8098 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8099 | int pipe = pipe_config->cpu_transcoder; | |
8100 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
8101 | intel_clock_t clock; | |
8102 | u32 cmn_dw13, pll_dw0, pll_dw1, pll_dw2; | |
8103 | int refclk = 100000; | |
8104 | ||
a580516d | 8105 | mutex_lock(&dev_priv->sb_lock); |
70b23a98 VS |
8106 | cmn_dw13 = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW13(port)); |
8107 | pll_dw0 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW0(port)); | |
8108 | pll_dw1 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW1(port)); | |
8109 | pll_dw2 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW2(port)); | |
a580516d | 8110 | mutex_unlock(&dev_priv->sb_lock); |
70b23a98 VS |
8111 | |
8112 | clock.m1 = (pll_dw1 & 0x7) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0; | |
8113 | clock.m2 = ((pll_dw0 & 0xff) << 22) | (pll_dw2 & 0x3fffff); | |
8114 | clock.n = (pll_dw1 >> DPIO_CHV_N_DIV_SHIFT) & 0xf; | |
8115 | clock.p1 = (cmn_dw13 >> DPIO_CHV_P1_DIV_SHIFT) & 0x7; | |
8116 | clock.p2 = (cmn_dw13 >> DPIO_CHV_P2_DIV_SHIFT) & 0x1f; | |
8117 | ||
dccbea3b | 8118 | pipe_config->port_clock = chv_calc_dpll_params(refclk, &clock); |
70b23a98 VS |
8119 | } |
8120 | ||
0e8ffe1b | 8121 | static bool i9xx_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 8122 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
8123 | { |
8124 | struct drm_device *dev = crtc->base.dev; | |
8125 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8126 | uint32_t tmp; | |
8127 | ||
f458ebbc DV |
8128 | if (!intel_display_power_is_enabled(dev_priv, |
8129 | POWER_DOMAIN_PIPE(crtc->pipe))) | |
b5482bd0 ID |
8130 | return false; |
8131 | ||
e143a21c | 8132 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 | 8133 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
eccb140b | 8134 | |
0e8ffe1b DV |
8135 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
8136 | if (!(tmp & PIPECONF_ENABLE)) | |
8137 | return false; | |
8138 | ||
42571aef VS |
8139 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) { |
8140 | switch (tmp & PIPECONF_BPC_MASK) { | |
8141 | case PIPECONF_6BPC: | |
8142 | pipe_config->pipe_bpp = 18; | |
8143 | break; | |
8144 | case PIPECONF_8BPC: | |
8145 | pipe_config->pipe_bpp = 24; | |
8146 | break; | |
8147 | case PIPECONF_10BPC: | |
8148 | pipe_config->pipe_bpp = 30; | |
8149 | break; | |
8150 | default: | |
8151 | break; | |
8152 | } | |
8153 | } | |
8154 | ||
b5a9fa09 DV |
8155 | if (IS_VALLEYVIEW(dev) && (tmp & PIPECONF_COLOR_RANGE_SELECT)) |
8156 | pipe_config->limited_color_range = true; | |
8157 | ||
282740f7 VS |
8158 | if (INTEL_INFO(dev)->gen < 4) |
8159 | pipe_config->double_wide = tmp & PIPECONF_DOUBLE_WIDE; | |
8160 | ||
1bd1bd80 DV |
8161 | intel_get_pipe_timings(crtc, pipe_config); |
8162 | ||
2fa2fe9a DV |
8163 | i9xx_get_pfit_config(crtc, pipe_config); |
8164 | ||
6c49f241 DV |
8165 | if (INTEL_INFO(dev)->gen >= 4) { |
8166 | tmp = I915_READ(DPLL_MD(crtc->pipe)); | |
8167 | pipe_config->pixel_multiplier = | |
8168 | ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK) | |
8169 | >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1; | |
8bcc2795 | 8170 | pipe_config->dpll_hw_state.dpll_md = tmp; |
6c49f241 DV |
8171 | } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
8172 | tmp = I915_READ(DPLL(crtc->pipe)); | |
8173 | pipe_config->pixel_multiplier = | |
8174 | ((tmp & SDVO_MULTIPLIER_MASK) | |
8175 | >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1; | |
8176 | } else { | |
8177 | /* Note that on i915G/GM the pixel multiplier is in the sdvo | |
8178 | * port and will be fixed up in the encoder->get_config | |
8179 | * function. */ | |
8180 | pipe_config->pixel_multiplier = 1; | |
8181 | } | |
8bcc2795 DV |
8182 | pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe)); |
8183 | if (!IS_VALLEYVIEW(dev)) { | |
1c4e0274 VS |
8184 | /* |
8185 | * DPLL_DVO_2X_MODE must be enabled for both DPLLs | |
8186 | * on 830. Filter it out here so that we don't | |
8187 | * report errors due to that. | |
8188 | */ | |
8189 | if (IS_I830(dev)) | |
8190 | pipe_config->dpll_hw_state.dpll &= ~DPLL_DVO_2X_MODE; | |
8191 | ||
8bcc2795 DV |
8192 | pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe)); |
8193 | pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe)); | |
165e901c VS |
8194 | } else { |
8195 | /* Mask out read-only status bits. */ | |
8196 | pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV | | |
8197 | DPLL_PORTC_READY_MASK | | |
8198 | DPLL_PORTB_READY_MASK); | |
8bcc2795 | 8199 | } |
6c49f241 | 8200 | |
70b23a98 VS |
8201 | if (IS_CHERRYVIEW(dev)) |
8202 | chv_crtc_clock_get(crtc, pipe_config); | |
8203 | else if (IS_VALLEYVIEW(dev)) | |
acbec814 JB |
8204 | vlv_crtc_clock_get(crtc, pipe_config); |
8205 | else | |
8206 | i9xx_crtc_clock_get(crtc, pipe_config); | |
18442d08 | 8207 | |
0e8ffe1b DV |
8208 | return true; |
8209 | } | |
8210 | ||
dde86e2d | 8211 | static void ironlake_init_pch_refclk(struct drm_device *dev) |
13d83a67 JB |
8212 | { |
8213 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13d83a67 | 8214 | struct intel_encoder *encoder; |
74cfd7ac | 8215 | u32 val, final; |
13d83a67 | 8216 | bool has_lvds = false; |
199e5d79 | 8217 | bool has_cpu_edp = false; |
199e5d79 | 8218 | bool has_panel = false; |
99eb6a01 KP |
8219 | bool has_ck505 = false; |
8220 | bool can_ssc = false; | |
13d83a67 JB |
8221 | |
8222 | /* We need to take the global config into account */ | |
b2784e15 | 8223 | for_each_intel_encoder(dev, encoder) { |
199e5d79 KP |
8224 | switch (encoder->type) { |
8225 | case INTEL_OUTPUT_LVDS: | |
8226 | has_panel = true; | |
8227 | has_lvds = true; | |
8228 | break; | |
8229 | case INTEL_OUTPUT_EDP: | |
8230 | has_panel = true; | |
2de6905f | 8231 | if (enc_to_dig_port(&encoder->base)->port == PORT_A) |
199e5d79 KP |
8232 | has_cpu_edp = true; |
8233 | break; | |
6847d71b PZ |
8234 | default: |
8235 | break; | |
13d83a67 JB |
8236 | } |
8237 | } | |
8238 | ||
99eb6a01 | 8239 | if (HAS_PCH_IBX(dev)) { |
41aa3448 | 8240 | has_ck505 = dev_priv->vbt.display_clock_mode; |
99eb6a01 KP |
8241 | can_ssc = has_ck505; |
8242 | } else { | |
8243 | has_ck505 = false; | |
8244 | can_ssc = true; | |
8245 | } | |
8246 | ||
2de6905f ID |
8247 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n", |
8248 | has_panel, has_lvds, has_ck505); | |
13d83a67 JB |
8249 | |
8250 | /* Ironlake: try to setup display ref clock before DPLL | |
8251 | * enabling. This is only under driver's control after | |
8252 | * PCH B stepping, previous chipset stepping should be | |
8253 | * ignoring this setting. | |
8254 | */ | |
74cfd7ac CW |
8255 | val = I915_READ(PCH_DREF_CONTROL); |
8256 | ||
8257 | /* As we must carefully and slowly disable/enable each source in turn, | |
8258 | * compute the final state we want first and check if we need to | |
8259 | * make any changes at all. | |
8260 | */ | |
8261 | final = val; | |
8262 | final &= ~DREF_NONSPREAD_SOURCE_MASK; | |
8263 | if (has_ck505) | |
8264 | final |= DREF_NONSPREAD_CK505_ENABLE; | |
8265 | else | |
8266 | final |= DREF_NONSPREAD_SOURCE_ENABLE; | |
8267 | ||
8268 | final &= ~DREF_SSC_SOURCE_MASK; | |
8269 | final &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
8270 | final &= ~DREF_SSC1_ENABLE; | |
8271 | ||
8272 | if (has_panel) { | |
8273 | final |= DREF_SSC_SOURCE_ENABLE; | |
8274 | ||
8275 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
8276 | final |= DREF_SSC1_ENABLE; | |
8277 | ||
8278 | if (has_cpu_edp) { | |
8279 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
8280 | final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; | |
8281 | else | |
8282 | final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
8283 | } else | |
8284 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
8285 | } else { | |
8286 | final |= DREF_SSC_SOURCE_DISABLE; | |
8287 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
8288 | } | |
8289 | ||
8290 | if (final == val) | |
8291 | return; | |
8292 | ||
13d83a67 | 8293 | /* Always enable nonspread source */ |
74cfd7ac | 8294 | val &= ~DREF_NONSPREAD_SOURCE_MASK; |
13d83a67 | 8295 | |
99eb6a01 | 8296 | if (has_ck505) |
74cfd7ac | 8297 | val |= DREF_NONSPREAD_CK505_ENABLE; |
99eb6a01 | 8298 | else |
74cfd7ac | 8299 | val |= DREF_NONSPREAD_SOURCE_ENABLE; |
13d83a67 | 8300 | |
199e5d79 | 8301 | if (has_panel) { |
74cfd7ac CW |
8302 | val &= ~DREF_SSC_SOURCE_MASK; |
8303 | val |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 8304 | |
199e5d79 | 8305 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 8306 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 8307 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
74cfd7ac | 8308 | val |= DREF_SSC1_ENABLE; |
e77166b5 | 8309 | } else |
74cfd7ac | 8310 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 KP |
8311 | |
8312 | /* Get SSC going before enabling the outputs */ | |
74cfd7ac | 8313 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
8314 | POSTING_READ(PCH_DREF_CONTROL); |
8315 | udelay(200); | |
8316 | ||
74cfd7ac | 8317 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
13d83a67 JB |
8318 | |
8319 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 8320 | if (has_cpu_edp) { |
99eb6a01 | 8321 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 8322 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
74cfd7ac | 8323 | val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
eba905b2 | 8324 | } else |
74cfd7ac | 8325 | val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; |
199e5d79 | 8326 | } else |
74cfd7ac | 8327 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 8328 | |
74cfd7ac | 8329 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
8330 | POSTING_READ(PCH_DREF_CONTROL); |
8331 | udelay(200); | |
8332 | } else { | |
8333 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
8334 | ||
74cfd7ac | 8335 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
199e5d79 KP |
8336 | |
8337 | /* Turn off CPU output */ | |
74cfd7ac | 8338 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 8339 | |
74cfd7ac | 8340 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
8341 | POSTING_READ(PCH_DREF_CONTROL); |
8342 | udelay(200); | |
8343 | ||
8344 | /* Turn off the SSC source */ | |
74cfd7ac CW |
8345 | val &= ~DREF_SSC_SOURCE_MASK; |
8346 | val |= DREF_SSC_SOURCE_DISABLE; | |
199e5d79 KP |
8347 | |
8348 | /* Turn off SSC1 */ | |
74cfd7ac | 8349 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 | 8350 | |
74cfd7ac | 8351 | I915_WRITE(PCH_DREF_CONTROL, val); |
13d83a67 JB |
8352 | POSTING_READ(PCH_DREF_CONTROL); |
8353 | udelay(200); | |
8354 | } | |
74cfd7ac CW |
8355 | |
8356 | BUG_ON(val != final); | |
13d83a67 JB |
8357 | } |
8358 | ||
f31f2d55 | 8359 | static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv) |
dde86e2d | 8360 | { |
f31f2d55 | 8361 | uint32_t tmp; |
dde86e2d | 8362 | |
0ff066a9 PZ |
8363 | tmp = I915_READ(SOUTH_CHICKEN2); |
8364 | tmp |= FDI_MPHY_IOSFSB_RESET_CTL; | |
8365 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
dde86e2d | 8366 | |
0ff066a9 PZ |
8367 | if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) & |
8368 | FDI_MPHY_IOSFSB_RESET_STATUS, 100)) | |
8369 | DRM_ERROR("FDI mPHY reset assert timeout\n"); | |
dde86e2d | 8370 | |
0ff066a9 PZ |
8371 | tmp = I915_READ(SOUTH_CHICKEN2); |
8372 | tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL; | |
8373 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
dde86e2d | 8374 | |
0ff066a9 PZ |
8375 | if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) & |
8376 | FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100)) | |
8377 | DRM_ERROR("FDI mPHY reset de-assert timeout\n"); | |
f31f2d55 PZ |
8378 | } |
8379 | ||
8380 | /* WaMPhyProgramming:hsw */ | |
8381 | static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv) | |
8382 | { | |
8383 | uint32_t tmp; | |
dde86e2d PZ |
8384 | |
8385 | tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY); | |
8386 | tmp &= ~(0xFF << 24); | |
8387 | tmp |= (0x12 << 24); | |
8388 | intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY); | |
8389 | ||
dde86e2d PZ |
8390 | tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY); |
8391 | tmp |= (1 << 11); | |
8392 | intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY); | |
8393 | ||
8394 | tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY); | |
8395 | tmp |= (1 << 11); | |
8396 | intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY); | |
8397 | ||
dde86e2d PZ |
8398 | tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY); |
8399 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
8400 | intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY); | |
8401 | ||
8402 | tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY); | |
8403 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
8404 | intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY); | |
8405 | ||
0ff066a9 PZ |
8406 | tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY); |
8407 | tmp &= ~(7 << 13); | |
8408 | tmp |= (5 << 13); | |
8409 | intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY); | |
dde86e2d | 8410 | |
0ff066a9 PZ |
8411 | tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY); |
8412 | tmp &= ~(7 << 13); | |
8413 | tmp |= (5 << 13); | |
8414 | intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY); | |
dde86e2d PZ |
8415 | |
8416 | tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY); | |
8417 | tmp &= ~0xFF; | |
8418 | tmp |= 0x1C; | |
8419 | intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY); | |
8420 | ||
8421 | tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY); | |
8422 | tmp &= ~0xFF; | |
8423 | tmp |= 0x1C; | |
8424 | intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY); | |
8425 | ||
8426 | tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY); | |
8427 | tmp &= ~(0xFF << 16); | |
8428 | tmp |= (0x1C << 16); | |
8429 | intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY); | |
8430 | ||
8431 | tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY); | |
8432 | tmp &= ~(0xFF << 16); | |
8433 | tmp |= (0x1C << 16); | |
8434 | intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY); | |
8435 | ||
0ff066a9 PZ |
8436 | tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY); |
8437 | tmp |= (1 << 27); | |
8438 | intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY); | |
dde86e2d | 8439 | |
0ff066a9 PZ |
8440 | tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY); |
8441 | tmp |= (1 << 27); | |
8442 | intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY); | |
dde86e2d | 8443 | |
0ff066a9 PZ |
8444 | tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY); |
8445 | tmp &= ~(0xF << 28); | |
8446 | tmp |= (4 << 28); | |
8447 | intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY); | |
dde86e2d | 8448 | |
0ff066a9 PZ |
8449 | tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY); |
8450 | tmp &= ~(0xF << 28); | |
8451 | tmp |= (4 << 28); | |
8452 | intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); | |
f31f2d55 PZ |
8453 | } |
8454 | ||
2fa86a1f PZ |
8455 | /* Implements 3 different sequences from BSpec chapter "Display iCLK |
8456 | * Programming" based on the parameters passed: | |
8457 | * - Sequence to enable CLKOUT_DP | |
8458 | * - Sequence to enable CLKOUT_DP without spread | |
8459 | * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O | |
8460 | */ | |
8461 | static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread, | |
8462 | bool with_fdi) | |
f31f2d55 PZ |
8463 | { |
8464 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa86a1f PZ |
8465 | uint32_t reg, tmp; |
8466 | ||
8467 | if (WARN(with_fdi && !with_spread, "FDI requires downspread\n")) | |
8468 | with_spread = true; | |
8469 | if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE && | |
8470 | with_fdi, "LP PCH doesn't have FDI\n")) | |
8471 | with_fdi = false; | |
f31f2d55 | 8472 | |
a580516d | 8473 | mutex_lock(&dev_priv->sb_lock); |
f31f2d55 PZ |
8474 | |
8475 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
8476 | tmp &= ~SBI_SSCCTL_DISABLE; | |
8477 | tmp |= SBI_SSCCTL_PATHALT; | |
8478 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
8479 | ||
8480 | udelay(24); | |
8481 | ||
2fa86a1f PZ |
8482 | if (with_spread) { |
8483 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
8484 | tmp &= ~SBI_SSCCTL_PATHALT; | |
8485 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
f31f2d55 | 8486 | |
2fa86a1f PZ |
8487 | if (with_fdi) { |
8488 | lpt_reset_fdi_mphy(dev_priv); | |
8489 | lpt_program_fdi_mphy(dev_priv); | |
8490 | } | |
8491 | } | |
dde86e2d | 8492 | |
2fa86a1f PZ |
8493 | reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ? |
8494 | SBI_GEN0 : SBI_DBUFF0; | |
8495 | tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK); | |
8496 | tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE; | |
8497 | intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK); | |
c00db246 | 8498 | |
a580516d | 8499 | mutex_unlock(&dev_priv->sb_lock); |
dde86e2d PZ |
8500 | } |
8501 | ||
47701c3b PZ |
8502 | /* Sequence to disable CLKOUT_DP */ |
8503 | static void lpt_disable_clkout_dp(struct drm_device *dev) | |
8504 | { | |
8505 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8506 | uint32_t reg, tmp; | |
8507 | ||
a580516d | 8508 | mutex_lock(&dev_priv->sb_lock); |
47701c3b PZ |
8509 | |
8510 | reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ? | |
8511 | SBI_GEN0 : SBI_DBUFF0; | |
8512 | tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK); | |
8513 | tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE; | |
8514 | intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK); | |
8515 | ||
8516 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
8517 | if (!(tmp & SBI_SSCCTL_DISABLE)) { | |
8518 | if (!(tmp & SBI_SSCCTL_PATHALT)) { | |
8519 | tmp |= SBI_SSCCTL_PATHALT; | |
8520 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
8521 | udelay(32); | |
8522 | } | |
8523 | tmp |= SBI_SSCCTL_DISABLE; | |
8524 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
8525 | } | |
8526 | ||
a580516d | 8527 | mutex_unlock(&dev_priv->sb_lock); |
47701c3b PZ |
8528 | } |
8529 | ||
bf8fa3d3 PZ |
8530 | static void lpt_init_pch_refclk(struct drm_device *dev) |
8531 | { | |
bf8fa3d3 PZ |
8532 | struct intel_encoder *encoder; |
8533 | bool has_vga = false; | |
8534 | ||
b2784e15 | 8535 | for_each_intel_encoder(dev, encoder) { |
bf8fa3d3 PZ |
8536 | switch (encoder->type) { |
8537 | case INTEL_OUTPUT_ANALOG: | |
8538 | has_vga = true; | |
8539 | break; | |
6847d71b PZ |
8540 | default: |
8541 | break; | |
bf8fa3d3 PZ |
8542 | } |
8543 | } | |
8544 | ||
47701c3b PZ |
8545 | if (has_vga) |
8546 | lpt_enable_clkout_dp(dev, true, true); | |
8547 | else | |
8548 | lpt_disable_clkout_dp(dev); | |
bf8fa3d3 PZ |
8549 | } |
8550 | ||
dde86e2d PZ |
8551 | /* |
8552 | * Initialize reference clocks when the driver loads | |
8553 | */ | |
8554 | void intel_init_pch_refclk(struct drm_device *dev) | |
8555 | { | |
8556 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
8557 | ironlake_init_pch_refclk(dev); | |
8558 | else if (HAS_PCH_LPT(dev)) | |
8559 | lpt_init_pch_refclk(dev); | |
8560 | } | |
8561 | ||
55bb9992 | 8562 | static int ironlake_get_refclk(struct intel_crtc_state *crtc_state) |
d9d444cb | 8563 | { |
55bb9992 | 8564 | struct drm_device *dev = crtc_state->base.crtc->dev; |
d9d444cb | 8565 | struct drm_i915_private *dev_priv = dev->dev_private; |
55bb9992 | 8566 | struct drm_atomic_state *state = crtc_state->base.state; |
da3ced29 | 8567 | struct drm_connector *connector; |
55bb9992 | 8568 | struct drm_connector_state *connector_state; |
d9d444cb | 8569 | struct intel_encoder *encoder; |
55bb9992 | 8570 | int num_connectors = 0, i; |
d9d444cb JB |
8571 | bool is_lvds = false; |
8572 | ||
da3ced29 | 8573 | for_each_connector_in_state(state, connector, connector_state, i) { |
55bb9992 ACO |
8574 | if (connector_state->crtc != crtc_state->base.crtc) |
8575 | continue; | |
8576 | ||
8577 | encoder = to_intel_encoder(connector_state->best_encoder); | |
8578 | ||
d9d444cb JB |
8579 | switch (encoder->type) { |
8580 | case INTEL_OUTPUT_LVDS: | |
8581 | is_lvds = true; | |
8582 | break; | |
6847d71b PZ |
8583 | default: |
8584 | break; | |
d9d444cb JB |
8585 | } |
8586 | num_connectors++; | |
8587 | } | |
8588 | ||
8589 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
e91e941b | 8590 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", |
41aa3448 | 8591 | dev_priv->vbt.lvds_ssc_freq); |
e91e941b | 8592 | return dev_priv->vbt.lvds_ssc_freq; |
d9d444cb JB |
8593 | } |
8594 | ||
8595 | return 120000; | |
8596 | } | |
8597 | ||
6ff93609 | 8598 | static void ironlake_set_pipeconf(struct drm_crtc *crtc) |
79e53945 | 8599 | { |
c8203565 | 8600 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
79e53945 JB |
8601 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8602 | int pipe = intel_crtc->pipe; | |
c8203565 PZ |
8603 | uint32_t val; |
8604 | ||
78114071 | 8605 | val = 0; |
c8203565 | 8606 | |
6e3c9717 | 8607 | switch (intel_crtc->config->pipe_bpp) { |
c8203565 | 8608 | case 18: |
dfd07d72 | 8609 | val |= PIPECONF_6BPC; |
c8203565 PZ |
8610 | break; |
8611 | case 24: | |
dfd07d72 | 8612 | val |= PIPECONF_8BPC; |
c8203565 PZ |
8613 | break; |
8614 | case 30: | |
dfd07d72 | 8615 | val |= PIPECONF_10BPC; |
c8203565 PZ |
8616 | break; |
8617 | case 36: | |
dfd07d72 | 8618 | val |= PIPECONF_12BPC; |
c8203565 PZ |
8619 | break; |
8620 | default: | |
cc769b62 PZ |
8621 | /* Case prevented by intel_choose_pipe_bpp_dither. */ |
8622 | BUG(); | |
c8203565 PZ |
8623 | } |
8624 | ||
6e3c9717 | 8625 | if (intel_crtc->config->dither) |
c8203565 PZ |
8626 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
8627 | ||
6e3c9717 | 8628 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
c8203565 PZ |
8629 | val |= PIPECONF_INTERLACED_ILK; |
8630 | else | |
8631 | val |= PIPECONF_PROGRESSIVE; | |
8632 | ||
6e3c9717 | 8633 | if (intel_crtc->config->limited_color_range) |
3685a8f3 | 8634 | val |= PIPECONF_COLOR_RANGE_SELECT; |
3685a8f3 | 8635 | |
c8203565 PZ |
8636 | I915_WRITE(PIPECONF(pipe), val); |
8637 | POSTING_READ(PIPECONF(pipe)); | |
8638 | } | |
8639 | ||
86d3efce VS |
8640 | /* |
8641 | * Set up the pipe CSC unit. | |
8642 | * | |
8643 | * Currently only full range RGB to limited range RGB conversion | |
8644 | * is supported, but eventually this should handle various | |
8645 | * RGB<->YCbCr scenarios as well. | |
8646 | */ | |
50f3b016 | 8647 | static void intel_set_pipe_csc(struct drm_crtc *crtc) |
86d3efce VS |
8648 | { |
8649 | struct drm_device *dev = crtc->dev; | |
8650 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8651 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8652 | int pipe = intel_crtc->pipe; | |
8653 | uint16_t coeff = 0x7800; /* 1.0 */ | |
8654 | ||
8655 | /* | |
8656 | * TODO: Check what kind of values actually come out of the pipe | |
8657 | * with these coeff/postoff values and adjust to get the best | |
8658 | * accuracy. Perhaps we even need to take the bpc value into | |
8659 | * consideration. | |
8660 | */ | |
8661 | ||
6e3c9717 | 8662 | if (intel_crtc->config->limited_color_range) |
86d3efce VS |
8663 | coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */ |
8664 | ||
8665 | /* | |
8666 | * GY/GU and RY/RU should be the other way around according | |
8667 | * to BSpec, but reality doesn't agree. Just set them up in | |
8668 | * a way that results in the correct picture. | |
8669 | */ | |
8670 | I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16); | |
8671 | I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0); | |
8672 | ||
8673 | I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff); | |
8674 | I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0); | |
8675 | ||
8676 | I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0); | |
8677 | I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16); | |
8678 | ||
8679 | I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0); | |
8680 | I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0); | |
8681 | I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0); | |
8682 | ||
8683 | if (INTEL_INFO(dev)->gen > 6) { | |
8684 | uint16_t postoff = 0; | |
8685 | ||
6e3c9717 | 8686 | if (intel_crtc->config->limited_color_range) |
32cf0cb0 | 8687 | postoff = (16 * (1 << 12) / 255) & 0x1fff; |
86d3efce VS |
8688 | |
8689 | I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff); | |
8690 | I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff); | |
8691 | I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff); | |
8692 | ||
8693 | I915_WRITE(PIPE_CSC_MODE(pipe), 0); | |
8694 | } else { | |
8695 | uint32_t mode = CSC_MODE_YUV_TO_RGB; | |
8696 | ||
6e3c9717 | 8697 | if (intel_crtc->config->limited_color_range) |
86d3efce VS |
8698 | mode |= CSC_BLACK_SCREEN_OFFSET; |
8699 | ||
8700 | I915_WRITE(PIPE_CSC_MODE(pipe), mode); | |
8701 | } | |
8702 | } | |
8703 | ||
6ff93609 | 8704 | static void haswell_set_pipeconf(struct drm_crtc *crtc) |
ee2b0b38 | 8705 | { |
756f85cf PZ |
8706 | struct drm_device *dev = crtc->dev; |
8707 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee2b0b38 | 8708 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
756f85cf | 8709 | enum pipe pipe = intel_crtc->pipe; |
6e3c9717 | 8710 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
ee2b0b38 PZ |
8711 | uint32_t val; |
8712 | ||
3eff4faa | 8713 | val = 0; |
ee2b0b38 | 8714 | |
6e3c9717 | 8715 | if (IS_HASWELL(dev) && intel_crtc->config->dither) |
ee2b0b38 PZ |
8716 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
8717 | ||
6e3c9717 | 8718 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
ee2b0b38 PZ |
8719 | val |= PIPECONF_INTERLACED_ILK; |
8720 | else | |
8721 | val |= PIPECONF_PROGRESSIVE; | |
8722 | ||
702e7a56 PZ |
8723 | I915_WRITE(PIPECONF(cpu_transcoder), val); |
8724 | POSTING_READ(PIPECONF(cpu_transcoder)); | |
3eff4faa DV |
8725 | |
8726 | I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT); | |
8727 | POSTING_READ(GAMMA_MODE(intel_crtc->pipe)); | |
756f85cf | 8728 | |
3cdf122c | 8729 | if (IS_BROADWELL(dev) || INTEL_INFO(dev)->gen >= 9) { |
756f85cf PZ |
8730 | val = 0; |
8731 | ||
6e3c9717 | 8732 | switch (intel_crtc->config->pipe_bpp) { |
756f85cf PZ |
8733 | case 18: |
8734 | val |= PIPEMISC_DITHER_6_BPC; | |
8735 | break; | |
8736 | case 24: | |
8737 | val |= PIPEMISC_DITHER_8_BPC; | |
8738 | break; | |
8739 | case 30: | |
8740 | val |= PIPEMISC_DITHER_10_BPC; | |
8741 | break; | |
8742 | case 36: | |
8743 | val |= PIPEMISC_DITHER_12_BPC; | |
8744 | break; | |
8745 | default: | |
8746 | /* Case prevented by pipe_config_set_bpp. */ | |
8747 | BUG(); | |
8748 | } | |
8749 | ||
6e3c9717 | 8750 | if (intel_crtc->config->dither) |
756f85cf PZ |
8751 | val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP; |
8752 | ||
8753 | I915_WRITE(PIPEMISC(pipe), val); | |
8754 | } | |
ee2b0b38 PZ |
8755 | } |
8756 | ||
6591c6e4 | 8757 | static bool ironlake_compute_clocks(struct drm_crtc *crtc, |
190f68c5 | 8758 | struct intel_crtc_state *crtc_state, |
6591c6e4 PZ |
8759 | intel_clock_t *clock, |
8760 | bool *has_reduced_clock, | |
8761 | intel_clock_t *reduced_clock) | |
8762 | { | |
8763 | struct drm_device *dev = crtc->dev; | |
8764 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6591c6e4 | 8765 | int refclk; |
d4906093 | 8766 | const intel_limit_t *limit; |
c329a4ec | 8767 | bool ret; |
79e53945 | 8768 | |
55bb9992 | 8769 | refclk = ironlake_get_refclk(crtc_state); |
79e53945 | 8770 | |
d4906093 ML |
8771 | /* |
8772 | * Returns a set of divisors for the desired target clock with the given | |
8773 | * refclk, or FALSE. The returned values represent the clock equation: | |
8774 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
8775 | */ | |
a93e255f ACO |
8776 | limit = intel_limit(crtc_state, refclk); |
8777 | ret = dev_priv->display.find_dpll(limit, crtc_state, | |
190f68c5 | 8778 | crtc_state->port_clock, |
ee9300bb | 8779 | refclk, NULL, clock); |
6591c6e4 PZ |
8780 | if (!ret) |
8781 | return false; | |
cda4b7d3 | 8782 | |
6591c6e4 PZ |
8783 | return true; |
8784 | } | |
8785 | ||
d4b1931c PZ |
8786 | int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp) |
8787 | { | |
8788 | /* | |
8789 | * Account for spread spectrum to avoid | |
8790 | * oversubscribing the link. Max center spread | |
8791 | * is 2.5%; use 5% for safety's sake. | |
8792 | */ | |
8793 | u32 bps = target_clock * bpp * 21 / 20; | |
619d4d04 | 8794 | return DIV_ROUND_UP(bps, link_bw * 8); |
d4b1931c PZ |
8795 | } |
8796 | ||
7429e9d4 | 8797 | static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor) |
6cf86a5e | 8798 | { |
7429e9d4 | 8799 | return i9xx_dpll_compute_m(dpll) < factor * dpll->n; |
f48d8f23 PZ |
8800 | } |
8801 | ||
de13a2e3 | 8802 | static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, |
190f68c5 | 8803 | struct intel_crtc_state *crtc_state, |
7429e9d4 | 8804 | u32 *fp, |
9a7c7890 | 8805 | intel_clock_t *reduced_clock, u32 *fp2) |
79e53945 | 8806 | { |
de13a2e3 | 8807 | struct drm_crtc *crtc = &intel_crtc->base; |
79e53945 JB |
8808 | struct drm_device *dev = crtc->dev; |
8809 | struct drm_i915_private *dev_priv = dev->dev_private; | |
55bb9992 | 8810 | struct drm_atomic_state *state = crtc_state->base.state; |
da3ced29 | 8811 | struct drm_connector *connector; |
55bb9992 ACO |
8812 | struct drm_connector_state *connector_state; |
8813 | struct intel_encoder *encoder; | |
de13a2e3 | 8814 | uint32_t dpll; |
55bb9992 | 8815 | int factor, num_connectors = 0, i; |
09ede541 | 8816 | bool is_lvds = false, is_sdvo = false; |
79e53945 | 8817 | |
da3ced29 | 8818 | for_each_connector_in_state(state, connector, connector_state, i) { |
55bb9992 ACO |
8819 | if (connector_state->crtc != crtc_state->base.crtc) |
8820 | continue; | |
8821 | ||
8822 | encoder = to_intel_encoder(connector_state->best_encoder); | |
8823 | ||
8824 | switch (encoder->type) { | |
79e53945 JB |
8825 | case INTEL_OUTPUT_LVDS: |
8826 | is_lvds = true; | |
8827 | break; | |
8828 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 8829 | case INTEL_OUTPUT_HDMI: |
79e53945 | 8830 | is_sdvo = true; |
79e53945 | 8831 | break; |
6847d71b PZ |
8832 | default: |
8833 | break; | |
79e53945 | 8834 | } |
43565a06 | 8835 | |
c751ce4f | 8836 | num_connectors++; |
79e53945 | 8837 | } |
79e53945 | 8838 | |
c1858123 | 8839 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
8840 | factor = 21; |
8841 | if (is_lvds) { | |
8842 | if ((intel_panel_use_ssc(dev_priv) && | |
e91e941b | 8843 | dev_priv->vbt.lvds_ssc_freq == 100000) || |
f0b44056 | 8844 | (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev))) |
8febb297 | 8845 | factor = 25; |
190f68c5 | 8846 | } else if (crtc_state->sdvo_tv_clock) |
8febb297 | 8847 | factor = 20; |
c1858123 | 8848 | |
190f68c5 | 8849 | if (ironlake_needs_fb_cb_tune(&crtc_state->dpll, factor)) |
7d0ac5b7 | 8850 | *fp |= FP_CB_TUNE; |
2c07245f | 8851 | |
9a7c7890 DV |
8852 | if (fp2 && (reduced_clock->m < factor * reduced_clock->n)) |
8853 | *fp2 |= FP_CB_TUNE; | |
8854 | ||
5eddb70b | 8855 | dpll = 0; |
2c07245f | 8856 | |
a07d6787 EA |
8857 | if (is_lvds) |
8858 | dpll |= DPLLB_MODE_LVDS; | |
8859 | else | |
8860 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
198a037f | 8861 | |
190f68c5 | 8862 | dpll |= (crtc_state->pixel_multiplier - 1) |
ef1b460d | 8863 | << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; |
198a037f DV |
8864 | |
8865 | if (is_sdvo) | |
4a33e48d | 8866 | dpll |= DPLL_SDVO_HIGH_SPEED; |
190f68c5 | 8867 | if (crtc_state->has_dp_encoder) |
4a33e48d | 8868 | dpll |= DPLL_SDVO_HIGH_SPEED; |
79e53945 | 8869 | |
a07d6787 | 8870 | /* compute bitmask from p1 value */ |
190f68c5 | 8871 | dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
a07d6787 | 8872 | /* also FPA1 */ |
190f68c5 | 8873 | dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
a07d6787 | 8874 | |
190f68c5 | 8875 | switch (crtc_state->dpll.p2) { |
a07d6787 EA |
8876 | case 5: |
8877 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
8878 | break; | |
8879 | case 7: | |
8880 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
8881 | break; | |
8882 | case 10: | |
8883 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
8884 | break; | |
8885 | case 14: | |
8886 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
8887 | break; | |
79e53945 JB |
8888 | } |
8889 | ||
b4c09f3b | 8890 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 8891 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
8892 | else |
8893 | dpll |= PLL_REF_INPUT_DREFCLK; | |
8894 | ||
959e16d6 | 8895 | return dpll | DPLL_VCO_ENABLE; |
de13a2e3 PZ |
8896 | } |
8897 | ||
190f68c5 ACO |
8898 | static int ironlake_crtc_compute_clock(struct intel_crtc *crtc, |
8899 | struct intel_crtc_state *crtc_state) | |
de13a2e3 | 8900 | { |
c7653199 | 8901 | struct drm_device *dev = crtc->base.dev; |
de13a2e3 | 8902 | intel_clock_t clock, reduced_clock; |
cbbab5bd | 8903 | u32 dpll = 0, fp = 0, fp2 = 0; |
e2f12b07 | 8904 | bool ok, has_reduced_clock = false; |
8b47047b | 8905 | bool is_lvds = false; |
e2b78267 | 8906 | struct intel_shared_dpll *pll; |
de13a2e3 | 8907 | |
dd3cd74a ACO |
8908 | memset(&crtc_state->dpll_hw_state, 0, |
8909 | sizeof(crtc_state->dpll_hw_state)); | |
8910 | ||
409ee761 | 8911 | is_lvds = intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS); |
79e53945 | 8912 | |
5dc5298b PZ |
8913 | WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)), |
8914 | "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev)); | |
a07d6787 | 8915 | |
190f68c5 | 8916 | ok = ironlake_compute_clocks(&crtc->base, crtc_state, &clock, |
de13a2e3 | 8917 | &has_reduced_clock, &reduced_clock); |
190f68c5 | 8918 | if (!ok && !crtc_state->clock_set) { |
de13a2e3 PZ |
8919 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
8920 | return -EINVAL; | |
79e53945 | 8921 | } |
f47709a9 | 8922 | /* Compat-code for transition, will disappear. */ |
190f68c5 ACO |
8923 | if (!crtc_state->clock_set) { |
8924 | crtc_state->dpll.n = clock.n; | |
8925 | crtc_state->dpll.m1 = clock.m1; | |
8926 | crtc_state->dpll.m2 = clock.m2; | |
8927 | crtc_state->dpll.p1 = clock.p1; | |
8928 | crtc_state->dpll.p2 = clock.p2; | |
f47709a9 | 8929 | } |
79e53945 | 8930 | |
5dc5298b | 8931 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ |
190f68c5 ACO |
8932 | if (crtc_state->has_pch_encoder) { |
8933 | fp = i9xx_dpll_compute_fp(&crtc_state->dpll); | |
cbbab5bd | 8934 | if (has_reduced_clock) |
7429e9d4 | 8935 | fp2 = i9xx_dpll_compute_fp(&reduced_clock); |
cbbab5bd | 8936 | |
190f68c5 | 8937 | dpll = ironlake_compute_dpll(crtc, crtc_state, |
cbbab5bd DV |
8938 | &fp, &reduced_clock, |
8939 | has_reduced_clock ? &fp2 : NULL); | |
8940 | ||
190f68c5 ACO |
8941 | crtc_state->dpll_hw_state.dpll = dpll; |
8942 | crtc_state->dpll_hw_state.fp0 = fp; | |
66e985c0 | 8943 | if (has_reduced_clock) |
190f68c5 | 8944 | crtc_state->dpll_hw_state.fp1 = fp2; |
66e985c0 | 8945 | else |
190f68c5 | 8946 | crtc_state->dpll_hw_state.fp1 = fp; |
66e985c0 | 8947 | |
190f68c5 | 8948 | pll = intel_get_shared_dpll(crtc, crtc_state); |
ee7b9f93 | 8949 | if (pll == NULL) { |
84f44ce7 | 8950 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n", |
c7653199 | 8951 | pipe_name(crtc->pipe)); |
4b645f14 JB |
8952 | return -EINVAL; |
8953 | } | |
3fb37703 | 8954 | } |
79e53945 | 8955 | |
ab585dea | 8956 | if (is_lvds && has_reduced_clock) |
c7653199 | 8957 | crtc->lowfreq_avail = true; |
bcd644e0 | 8958 | else |
c7653199 | 8959 | crtc->lowfreq_avail = false; |
e2b78267 | 8960 | |
c8f7a0db | 8961 | return 0; |
79e53945 JB |
8962 | } |
8963 | ||
eb14cb74 VS |
8964 | static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc, |
8965 | struct intel_link_m_n *m_n) | |
8966 | { | |
8967 | struct drm_device *dev = crtc->base.dev; | |
8968 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8969 | enum pipe pipe = crtc->pipe; | |
8970 | ||
8971 | m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe)); | |
8972 | m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe)); | |
8973 | m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe)) | |
8974 | & ~TU_SIZE_MASK; | |
8975 | m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe)); | |
8976 | m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe)) | |
8977 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
8978 | } | |
8979 | ||
8980 | static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc, | |
8981 | enum transcoder transcoder, | |
b95af8be VK |
8982 | struct intel_link_m_n *m_n, |
8983 | struct intel_link_m_n *m2_n2) | |
72419203 DV |
8984 | { |
8985 | struct drm_device *dev = crtc->base.dev; | |
8986 | struct drm_i915_private *dev_priv = dev->dev_private; | |
eb14cb74 | 8987 | enum pipe pipe = crtc->pipe; |
72419203 | 8988 | |
eb14cb74 VS |
8989 | if (INTEL_INFO(dev)->gen >= 5) { |
8990 | m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder)); | |
8991 | m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder)); | |
8992 | m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder)) | |
8993 | & ~TU_SIZE_MASK; | |
8994 | m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder)); | |
8995 | m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder)) | |
8996 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
b95af8be VK |
8997 | /* Read M2_N2 registers only for gen < 8 (M2_N2 available for |
8998 | * gen < 8) and if DRRS is supported (to make sure the | |
8999 | * registers are not unnecessarily read). | |
9000 | */ | |
9001 | if (m2_n2 && INTEL_INFO(dev)->gen < 8 && | |
6e3c9717 | 9002 | crtc->config->has_drrs) { |
b95af8be VK |
9003 | m2_n2->link_m = I915_READ(PIPE_LINK_M2(transcoder)); |
9004 | m2_n2->link_n = I915_READ(PIPE_LINK_N2(transcoder)); | |
9005 | m2_n2->gmch_m = I915_READ(PIPE_DATA_M2(transcoder)) | |
9006 | & ~TU_SIZE_MASK; | |
9007 | m2_n2->gmch_n = I915_READ(PIPE_DATA_N2(transcoder)); | |
9008 | m2_n2->tu = ((I915_READ(PIPE_DATA_M2(transcoder)) | |
9009 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
9010 | } | |
eb14cb74 VS |
9011 | } else { |
9012 | m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe)); | |
9013 | m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe)); | |
9014 | m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe)) | |
9015 | & ~TU_SIZE_MASK; | |
9016 | m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe)); | |
9017 | m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe)) | |
9018 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
9019 | } | |
9020 | } | |
9021 | ||
9022 | void intel_dp_get_m_n(struct intel_crtc *crtc, | |
5cec258b | 9023 | struct intel_crtc_state *pipe_config) |
eb14cb74 | 9024 | { |
681a8504 | 9025 | if (pipe_config->has_pch_encoder) |
eb14cb74 VS |
9026 | intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n); |
9027 | else | |
9028 | intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, | |
b95af8be VK |
9029 | &pipe_config->dp_m_n, |
9030 | &pipe_config->dp_m2_n2); | |
eb14cb74 | 9031 | } |
72419203 | 9032 | |
eb14cb74 | 9033 | static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc, |
5cec258b | 9034 | struct intel_crtc_state *pipe_config) |
eb14cb74 VS |
9035 | { |
9036 | intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, | |
b95af8be | 9037 | &pipe_config->fdi_m_n, NULL); |
72419203 DV |
9038 | } |
9039 | ||
bd2e244f | 9040 | static void skylake_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 9041 | struct intel_crtc_state *pipe_config) |
bd2e244f JB |
9042 | { |
9043 | struct drm_device *dev = crtc->base.dev; | |
9044 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a1b2278e CK |
9045 | struct intel_crtc_scaler_state *scaler_state = &pipe_config->scaler_state; |
9046 | uint32_t ps_ctrl = 0; | |
9047 | int id = -1; | |
9048 | int i; | |
bd2e244f | 9049 | |
a1b2278e CK |
9050 | /* find scaler attached to this pipe */ |
9051 | for (i = 0; i < crtc->num_scalers; i++) { | |
9052 | ps_ctrl = I915_READ(SKL_PS_CTRL(crtc->pipe, i)); | |
9053 | if (ps_ctrl & PS_SCALER_EN && !(ps_ctrl & PS_PLANE_SEL_MASK)) { | |
9054 | id = i; | |
9055 | pipe_config->pch_pfit.enabled = true; | |
9056 | pipe_config->pch_pfit.pos = I915_READ(SKL_PS_WIN_POS(crtc->pipe, i)); | |
9057 | pipe_config->pch_pfit.size = I915_READ(SKL_PS_WIN_SZ(crtc->pipe, i)); | |
9058 | break; | |
9059 | } | |
9060 | } | |
bd2e244f | 9061 | |
a1b2278e CK |
9062 | scaler_state->scaler_id = id; |
9063 | if (id >= 0) { | |
9064 | scaler_state->scaler_users |= (1 << SKL_CRTC_INDEX); | |
9065 | } else { | |
9066 | scaler_state->scaler_users &= ~(1 << SKL_CRTC_INDEX); | |
bd2e244f JB |
9067 | } |
9068 | } | |
9069 | ||
5724dbd1 DL |
9070 | static void |
9071 | skylake_get_initial_plane_config(struct intel_crtc *crtc, | |
9072 | struct intel_initial_plane_config *plane_config) | |
bc8d7dff DL |
9073 | { |
9074 | struct drm_device *dev = crtc->base.dev; | |
9075 | struct drm_i915_private *dev_priv = dev->dev_private; | |
40f46283 | 9076 | u32 val, base, offset, stride_mult, tiling; |
bc8d7dff DL |
9077 | int pipe = crtc->pipe; |
9078 | int fourcc, pixel_format; | |
6761dd31 | 9079 | unsigned int aligned_height; |
bc8d7dff | 9080 | struct drm_framebuffer *fb; |
1b842c89 | 9081 | struct intel_framebuffer *intel_fb; |
bc8d7dff | 9082 | |
d9806c9f | 9083 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 9084 | if (!intel_fb) { |
bc8d7dff DL |
9085 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
9086 | return; | |
9087 | } | |
9088 | ||
1b842c89 DL |
9089 | fb = &intel_fb->base; |
9090 | ||
bc8d7dff | 9091 | val = I915_READ(PLANE_CTL(pipe, 0)); |
42a7b088 DL |
9092 | if (!(val & PLANE_CTL_ENABLE)) |
9093 | goto error; | |
9094 | ||
bc8d7dff DL |
9095 | pixel_format = val & PLANE_CTL_FORMAT_MASK; |
9096 | fourcc = skl_format_to_fourcc(pixel_format, | |
9097 | val & PLANE_CTL_ORDER_RGBX, | |
9098 | val & PLANE_CTL_ALPHA_MASK); | |
9099 | fb->pixel_format = fourcc; | |
9100 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
9101 | ||
40f46283 DL |
9102 | tiling = val & PLANE_CTL_TILED_MASK; |
9103 | switch (tiling) { | |
9104 | case PLANE_CTL_TILED_LINEAR: | |
9105 | fb->modifier[0] = DRM_FORMAT_MOD_NONE; | |
9106 | break; | |
9107 | case PLANE_CTL_TILED_X: | |
9108 | plane_config->tiling = I915_TILING_X; | |
9109 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; | |
9110 | break; | |
9111 | case PLANE_CTL_TILED_Y: | |
9112 | fb->modifier[0] = I915_FORMAT_MOD_Y_TILED; | |
9113 | break; | |
9114 | case PLANE_CTL_TILED_YF: | |
9115 | fb->modifier[0] = I915_FORMAT_MOD_Yf_TILED; | |
9116 | break; | |
9117 | default: | |
9118 | MISSING_CASE(tiling); | |
9119 | goto error; | |
9120 | } | |
9121 | ||
bc8d7dff DL |
9122 | base = I915_READ(PLANE_SURF(pipe, 0)) & 0xfffff000; |
9123 | plane_config->base = base; | |
9124 | ||
9125 | offset = I915_READ(PLANE_OFFSET(pipe, 0)); | |
9126 | ||
9127 | val = I915_READ(PLANE_SIZE(pipe, 0)); | |
9128 | fb->height = ((val >> 16) & 0xfff) + 1; | |
9129 | fb->width = ((val >> 0) & 0x1fff) + 1; | |
9130 | ||
9131 | val = I915_READ(PLANE_STRIDE(pipe, 0)); | |
40f46283 DL |
9132 | stride_mult = intel_fb_stride_alignment(dev, fb->modifier[0], |
9133 | fb->pixel_format); | |
bc8d7dff DL |
9134 | fb->pitches[0] = (val & 0x3ff) * stride_mult; |
9135 | ||
9136 | aligned_height = intel_fb_align_height(dev, fb->height, | |
091df6cb DV |
9137 | fb->pixel_format, |
9138 | fb->modifier[0]); | |
bc8d7dff | 9139 | |
f37b5c2b | 9140 | plane_config->size = fb->pitches[0] * aligned_height; |
bc8d7dff DL |
9141 | |
9142 | DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", | |
9143 | pipe_name(pipe), fb->width, fb->height, | |
9144 | fb->bits_per_pixel, base, fb->pitches[0], | |
9145 | plane_config->size); | |
9146 | ||
2d14030b | 9147 | plane_config->fb = intel_fb; |
bc8d7dff DL |
9148 | return; |
9149 | ||
9150 | error: | |
9151 | kfree(fb); | |
9152 | } | |
9153 | ||
2fa2fe9a | 9154 | static void ironlake_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 9155 | struct intel_crtc_state *pipe_config) |
2fa2fe9a DV |
9156 | { |
9157 | struct drm_device *dev = crtc->base.dev; | |
9158 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9159 | uint32_t tmp; | |
9160 | ||
9161 | tmp = I915_READ(PF_CTL(crtc->pipe)); | |
9162 | ||
9163 | if (tmp & PF_ENABLE) { | |
fd4daa9c | 9164 | pipe_config->pch_pfit.enabled = true; |
2fa2fe9a DV |
9165 | pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe)); |
9166 | pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe)); | |
cb8b2a30 DV |
9167 | |
9168 | /* We currently do not free assignements of panel fitters on | |
9169 | * ivb/hsw (since we don't use the higher upscaling modes which | |
9170 | * differentiates them) so just WARN about this case for now. */ | |
9171 | if (IS_GEN7(dev)) { | |
9172 | WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) != | |
9173 | PF_PIPE_SEL_IVB(crtc->pipe)); | |
9174 | } | |
2fa2fe9a | 9175 | } |
79e53945 JB |
9176 | } |
9177 | ||
5724dbd1 DL |
9178 | static void |
9179 | ironlake_get_initial_plane_config(struct intel_crtc *crtc, | |
9180 | struct intel_initial_plane_config *plane_config) | |
4c6baa59 JB |
9181 | { |
9182 | struct drm_device *dev = crtc->base.dev; | |
9183 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9184 | u32 val, base, offset; | |
aeee5a49 | 9185 | int pipe = crtc->pipe; |
4c6baa59 | 9186 | int fourcc, pixel_format; |
6761dd31 | 9187 | unsigned int aligned_height; |
b113d5ee | 9188 | struct drm_framebuffer *fb; |
1b842c89 | 9189 | struct intel_framebuffer *intel_fb; |
4c6baa59 | 9190 | |
42a7b088 DL |
9191 | val = I915_READ(DSPCNTR(pipe)); |
9192 | if (!(val & DISPLAY_PLANE_ENABLE)) | |
9193 | return; | |
9194 | ||
d9806c9f | 9195 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 9196 | if (!intel_fb) { |
4c6baa59 JB |
9197 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
9198 | return; | |
9199 | } | |
9200 | ||
1b842c89 DL |
9201 | fb = &intel_fb->base; |
9202 | ||
18c5247e DV |
9203 | if (INTEL_INFO(dev)->gen >= 4) { |
9204 | if (val & DISPPLANE_TILED) { | |
49af449b | 9205 | plane_config->tiling = I915_TILING_X; |
18c5247e DV |
9206 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; |
9207 | } | |
9208 | } | |
4c6baa59 JB |
9209 | |
9210 | pixel_format = val & DISPPLANE_PIXFORMAT_MASK; | |
b35d63fa | 9211 | fourcc = i9xx_format_to_fourcc(pixel_format); |
b113d5ee DL |
9212 | fb->pixel_format = fourcc; |
9213 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
4c6baa59 | 9214 | |
aeee5a49 | 9215 | base = I915_READ(DSPSURF(pipe)) & 0xfffff000; |
4c6baa59 | 9216 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
aeee5a49 | 9217 | offset = I915_READ(DSPOFFSET(pipe)); |
4c6baa59 | 9218 | } else { |
49af449b | 9219 | if (plane_config->tiling) |
aeee5a49 | 9220 | offset = I915_READ(DSPTILEOFF(pipe)); |
4c6baa59 | 9221 | else |
aeee5a49 | 9222 | offset = I915_READ(DSPLINOFF(pipe)); |
4c6baa59 JB |
9223 | } |
9224 | plane_config->base = base; | |
9225 | ||
9226 | val = I915_READ(PIPESRC(pipe)); | |
b113d5ee DL |
9227 | fb->width = ((val >> 16) & 0xfff) + 1; |
9228 | fb->height = ((val >> 0) & 0xfff) + 1; | |
4c6baa59 JB |
9229 | |
9230 | val = I915_READ(DSPSTRIDE(pipe)); | |
b113d5ee | 9231 | fb->pitches[0] = val & 0xffffffc0; |
4c6baa59 | 9232 | |
b113d5ee | 9233 | aligned_height = intel_fb_align_height(dev, fb->height, |
091df6cb DV |
9234 | fb->pixel_format, |
9235 | fb->modifier[0]); | |
4c6baa59 | 9236 | |
f37b5c2b | 9237 | plane_config->size = fb->pitches[0] * aligned_height; |
4c6baa59 | 9238 | |
2844a921 DL |
9239 | DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", |
9240 | pipe_name(pipe), fb->width, fb->height, | |
9241 | fb->bits_per_pixel, base, fb->pitches[0], | |
9242 | plane_config->size); | |
b113d5ee | 9243 | |
2d14030b | 9244 | plane_config->fb = intel_fb; |
4c6baa59 JB |
9245 | } |
9246 | ||
0e8ffe1b | 9247 | static bool ironlake_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 9248 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
9249 | { |
9250 | struct drm_device *dev = crtc->base.dev; | |
9251 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9252 | uint32_t tmp; | |
9253 | ||
f458ebbc DV |
9254 | if (!intel_display_power_is_enabled(dev_priv, |
9255 | POWER_DOMAIN_PIPE(crtc->pipe))) | |
930e8c9e PZ |
9256 | return false; |
9257 | ||
e143a21c | 9258 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 | 9259 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
eccb140b | 9260 | |
0e8ffe1b DV |
9261 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
9262 | if (!(tmp & PIPECONF_ENABLE)) | |
9263 | return false; | |
9264 | ||
42571aef VS |
9265 | switch (tmp & PIPECONF_BPC_MASK) { |
9266 | case PIPECONF_6BPC: | |
9267 | pipe_config->pipe_bpp = 18; | |
9268 | break; | |
9269 | case PIPECONF_8BPC: | |
9270 | pipe_config->pipe_bpp = 24; | |
9271 | break; | |
9272 | case PIPECONF_10BPC: | |
9273 | pipe_config->pipe_bpp = 30; | |
9274 | break; | |
9275 | case PIPECONF_12BPC: | |
9276 | pipe_config->pipe_bpp = 36; | |
9277 | break; | |
9278 | default: | |
9279 | break; | |
9280 | } | |
9281 | ||
b5a9fa09 DV |
9282 | if (tmp & PIPECONF_COLOR_RANGE_SELECT) |
9283 | pipe_config->limited_color_range = true; | |
9284 | ||
ab9412ba | 9285 | if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) { |
66e985c0 DV |
9286 | struct intel_shared_dpll *pll; |
9287 | ||
88adfff1 DV |
9288 | pipe_config->has_pch_encoder = true; |
9289 | ||
627eb5a3 DV |
9290 | tmp = I915_READ(FDI_RX_CTL(crtc->pipe)); |
9291 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
9292 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
72419203 DV |
9293 | |
9294 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
6c49f241 | 9295 | |
c0d43d62 | 9296 | if (HAS_PCH_IBX(dev_priv->dev)) { |
d94ab068 DV |
9297 | pipe_config->shared_dpll = |
9298 | (enum intel_dpll_id) crtc->pipe; | |
c0d43d62 DV |
9299 | } else { |
9300 | tmp = I915_READ(PCH_DPLL_SEL); | |
9301 | if (tmp & TRANS_DPLLB_SEL(crtc->pipe)) | |
9302 | pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B; | |
9303 | else | |
9304 | pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A; | |
9305 | } | |
66e985c0 DV |
9306 | |
9307 | pll = &dev_priv->shared_dplls[pipe_config->shared_dpll]; | |
9308 | ||
9309 | WARN_ON(!pll->get_hw_state(dev_priv, pll, | |
9310 | &pipe_config->dpll_hw_state)); | |
c93f54cf DV |
9311 | |
9312 | tmp = pipe_config->dpll_hw_state.dpll; | |
9313 | pipe_config->pixel_multiplier = | |
9314 | ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK) | |
9315 | >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1; | |
18442d08 VS |
9316 | |
9317 | ironlake_pch_clock_get(crtc, pipe_config); | |
6c49f241 DV |
9318 | } else { |
9319 | pipe_config->pixel_multiplier = 1; | |
627eb5a3 DV |
9320 | } |
9321 | ||
1bd1bd80 DV |
9322 | intel_get_pipe_timings(crtc, pipe_config); |
9323 | ||
2fa2fe9a DV |
9324 | ironlake_get_pfit_config(crtc, pipe_config); |
9325 | ||
0e8ffe1b DV |
9326 | return true; |
9327 | } | |
9328 | ||
be256dc7 PZ |
9329 | static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv) |
9330 | { | |
9331 | struct drm_device *dev = dev_priv->dev; | |
be256dc7 | 9332 | struct intel_crtc *crtc; |
be256dc7 | 9333 | |
d3fcc808 | 9334 | for_each_intel_crtc(dev, crtc) |
e2c719b7 | 9335 | I915_STATE_WARN(crtc->active, "CRTC for pipe %c enabled\n", |
be256dc7 PZ |
9336 | pipe_name(crtc->pipe)); |
9337 | ||
e2c719b7 RC |
9338 | I915_STATE_WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n"); |
9339 | I915_STATE_WARN(I915_READ(SPLL_CTL) & SPLL_PLL_ENABLE, "SPLL enabled\n"); | |
9340 | I915_STATE_WARN(I915_READ(WRPLL_CTL1) & WRPLL_PLL_ENABLE, "WRPLL1 enabled\n"); | |
9341 | I915_STATE_WARN(I915_READ(WRPLL_CTL2) & WRPLL_PLL_ENABLE, "WRPLL2 enabled\n"); | |
9342 | I915_STATE_WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n"); | |
9343 | I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE, | |
be256dc7 | 9344 | "CPU PWM1 enabled\n"); |
c5107b87 | 9345 | if (IS_HASWELL(dev)) |
e2c719b7 | 9346 | I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE, |
c5107b87 | 9347 | "CPU PWM2 enabled\n"); |
e2c719b7 | 9348 | I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE, |
be256dc7 | 9349 | "PCH PWM1 enabled\n"); |
e2c719b7 | 9350 | I915_STATE_WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE, |
be256dc7 | 9351 | "Utility pin enabled\n"); |
e2c719b7 | 9352 | I915_STATE_WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n"); |
be256dc7 | 9353 | |
9926ada1 PZ |
9354 | /* |
9355 | * In theory we can still leave IRQs enabled, as long as only the HPD | |
9356 | * interrupts remain enabled. We used to check for that, but since it's | |
9357 | * gen-specific and since we only disable LCPLL after we fully disable | |
9358 | * the interrupts, the check below should be enough. | |
9359 | */ | |
e2c719b7 | 9360 | I915_STATE_WARN(intel_irqs_enabled(dev_priv), "IRQs enabled\n"); |
be256dc7 PZ |
9361 | } |
9362 | ||
9ccd5aeb PZ |
9363 | static uint32_t hsw_read_dcomp(struct drm_i915_private *dev_priv) |
9364 | { | |
9365 | struct drm_device *dev = dev_priv->dev; | |
9366 | ||
9367 | if (IS_HASWELL(dev)) | |
9368 | return I915_READ(D_COMP_HSW); | |
9369 | else | |
9370 | return I915_READ(D_COMP_BDW); | |
9371 | } | |
9372 | ||
3c4c9b81 PZ |
9373 | static void hsw_write_dcomp(struct drm_i915_private *dev_priv, uint32_t val) |
9374 | { | |
9375 | struct drm_device *dev = dev_priv->dev; | |
9376 | ||
9377 | if (IS_HASWELL(dev)) { | |
9378 | mutex_lock(&dev_priv->rps.hw_lock); | |
9379 | if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, | |
9380 | val)) | |
f475dadf | 9381 | DRM_ERROR("Failed to write to D_COMP\n"); |
3c4c9b81 PZ |
9382 | mutex_unlock(&dev_priv->rps.hw_lock); |
9383 | } else { | |
9ccd5aeb PZ |
9384 | I915_WRITE(D_COMP_BDW, val); |
9385 | POSTING_READ(D_COMP_BDW); | |
3c4c9b81 | 9386 | } |
be256dc7 PZ |
9387 | } |
9388 | ||
9389 | /* | |
9390 | * This function implements pieces of two sequences from BSpec: | |
9391 | * - Sequence for display software to disable LCPLL | |
9392 | * - Sequence for display software to allow package C8+ | |
9393 | * The steps implemented here are just the steps that actually touch the LCPLL | |
9394 | * register. Callers should take care of disabling all the display engine | |
9395 | * functions, doing the mode unset, fixing interrupts, etc. | |
9396 | */ | |
6ff58d53 PZ |
9397 | static void hsw_disable_lcpll(struct drm_i915_private *dev_priv, |
9398 | bool switch_to_fclk, bool allow_power_down) | |
be256dc7 PZ |
9399 | { |
9400 | uint32_t val; | |
9401 | ||
9402 | assert_can_disable_lcpll(dev_priv); | |
9403 | ||
9404 | val = I915_READ(LCPLL_CTL); | |
9405 | ||
9406 | if (switch_to_fclk) { | |
9407 | val |= LCPLL_CD_SOURCE_FCLK; | |
9408 | I915_WRITE(LCPLL_CTL, val); | |
9409 | ||
9410 | if (wait_for_atomic_us(I915_READ(LCPLL_CTL) & | |
9411 | LCPLL_CD_SOURCE_FCLK_DONE, 1)) | |
9412 | DRM_ERROR("Switching to FCLK failed\n"); | |
9413 | ||
9414 | val = I915_READ(LCPLL_CTL); | |
9415 | } | |
9416 | ||
9417 | val |= LCPLL_PLL_DISABLE; | |
9418 | I915_WRITE(LCPLL_CTL, val); | |
9419 | POSTING_READ(LCPLL_CTL); | |
9420 | ||
9421 | if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1)) | |
9422 | DRM_ERROR("LCPLL still locked\n"); | |
9423 | ||
9ccd5aeb | 9424 | val = hsw_read_dcomp(dev_priv); |
be256dc7 | 9425 | val |= D_COMP_COMP_DISABLE; |
3c4c9b81 | 9426 | hsw_write_dcomp(dev_priv, val); |
be256dc7 PZ |
9427 | ndelay(100); |
9428 | ||
9ccd5aeb PZ |
9429 | if (wait_for((hsw_read_dcomp(dev_priv) & D_COMP_RCOMP_IN_PROGRESS) == 0, |
9430 | 1)) | |
be256dc7 PZ |
9431 | DRM_ERROR("D_COMP RCOMP still in progress\n"); |
9432 | ||
9433 | if (allow_power_down) { | |
9434 | val = I915_READ(LCPLL_CTL); | |
9435 | val |= LCPLL_POWER_DOWN_ALLOW; | |
9436 | I915_WRITE(LCPLL_CTL, val); | |
9437 | POSTING_READ(LCPLL_CTL); | |
9438 | } | |
9439 | } | |
9440 | ||
9441 | /* | |
9442 | * Fully restores LCPLL, disallowing power down and switching back to LCPLL | |
9443 | * source. | |
9444 | */ | |
6ff58d53 | 9445 | static void hsw_restore_lcpll(struct drm_i915_private *dev_priv) |
be256dc7 PZ |
9446 | { |
9447 | uint32_t val; | |
9448 | ||
9449 | val = I915_READ(LCPLL_CTL); | |
9450 | ||
9451 | if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK | | |
9452 | LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK) | |
9453 | return; | |
9454 | ||
a8a8bd54 PZ |
9455 | /* |
9456 | * Make sure we're not on PC8 state before disabling PC8, otherwise | |
9457 | * we'll hang the machine. To prevent PC8 state, just enable force_wake. | |
a8a8bd54 | 9458 | */ |
59bad947 | 9459 | intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); |
215733fa | 9460 | |
be256dc7 PZ |
9461 | if (val & LCPLL_POWER_DOWN_ALLOW) { |
9462 | val &= ~LCPLL_POWER_DOWN_ALLOW; | |
9463 | I915_WRITE(LCPLL_CTL, val); | |
35d8f2eb | 9464 | POSTING_READ(LCPLL_CTL); |
be256dc7 PZ |
9465 | } |
9466 | ||
9ccd5aeb | 9467 | val = hsw_read_dcomp(dev_priv); |
be256dc7 PZ |
9468 | val |= D_COMP_COMP_FORCE; |
9469 | val &= ~D_COMP_COMP_DISABLE; | |
3c4c9b81 | 9470 | hsw_write_dcomp(dev_priv, val); |
be256dc7 PZ |
9471 | |
9472 | val = I915_READ(LCPLL_CTL); | |
9473 | val &= ~LCPLL_PLL_DISABLE; | |
9474 | I915_WRITE(LCPLL_CTL, val); | |
9475 | ||
9476 | if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5)) | |
9477 | DRM_ERROR("LCPLL not locked yet\n"); | |
9478 | ||
9479 | if (val & LCPLL_CD_SOURCE_FCLK) { | |
9480 | val = I915_READ(LCPLL_CTL); | |
9481 | val &= ~LCPLL_CD_SOURCE_FCLK; | |
9482 | I915_WRITE(LCPLL_CTL, val); | |
9483 | ||
9484 | if (wait_for_atomic_us((I915_READ(LCPLL_CTL) & | |
9485 | LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1)) | |
9486 | DRM_ERROR("Switching back to LCPLL failed\n"); | |
9487 | } | |
215733fa | 9488 | |
59bad947 | 9489 | intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); |
b6283055 | 9490 | intel_update_cdclk(dev_priv->dev); |
be256dc7 PZ |
9491 | } |
9492 | ||
765dab67 PZ |
9493 | /* |
9494 | * Package states C8 and deeper are really deep PC states that can only be | |
9495 | * reached when all the devices on the system allow it, so even if the graphics | |
9496 | * device allows PC8+, it doesn't mean the system will actually get to these | |
9497 | * states. Our driver only allows PC8+ when going into runtime PM. | |
9498 | * | |
9499 | * The requirements for PC8+ are that all the outputs are disabled, the power | |
9500 | * well is disabled and most interrupts are disabled, and these are also | |
9501 | * requirements for runtime PM. When these conditions are met, we manually do | |
9502 | * the other conditions: disable the interrupts, clocks and switch LCPLL refclk | |
9503 | * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard | |
9504 | * hang the machine. | |
9505 | * | |
9506 | * When we really reach PC8 or deeper states (not just when we allow it) we lose | |
9507 | * the state of some registers, so when we come back from PC8+ we need to | |
9508 | * restore this state. We don't get into PC8+ if we're not in RC6, so we don't | |
9509 | * need to take care of the registers kept by RC6. Notice that this happens even | |
9510 | * if we don't put the device in PCI D3 state (which is what currently happens | |
9511 | * because of the runtime PM support). | |
9512 | * | |
9513 | * For more, read "Display Sequences for Package C8" on the hardware | |
9514 | * documentation. | |
9515 | */ | |
a14cb6fc | 9516 | void hsw_enable_pc8(struct drm_i915_private *dev_priv) |
c67a470b | 9517 | { |
c67a470b PZ |
9518 | struct drm_device *dev = dev_priv->dev; |
9519 | uint32_t val; | |
9520 | ||
c67a470b PZ |
9521 | DRM_DEBUG_KMS("Enabling package C8+\n"); |
9522 | ||
c67a470b PZ |
9523 | if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) { |
9524 | val = I915_READ(SOUTH_DSPCLK_GATE_D); | |
9525 | val &= ~PCH_LP_PARTITION_LEVEL_DISABLE; | |
9526 | I915_WRITE(SOUTH_DSPCLK_GATE_D, val); | |
9527 | } | |
9528 | ||
9529 | lpt_disable_clkout_dp(dev); | |
c67a470b PZ |
9530 | hsw_disable_lcpll(dev_priv, true, true); |
9531 | } | |
9532 | ||
a14cb6fc | 9533 | void hsw_disable_pc8(struct drm_i915_private *dev_priv) |
c67a470b PZ |
9534 | { |
9535 | struct drm_device *dev = dev_priv->dev; | |
9536 | uint32_t val; | |
9537 | ||
c67a470b PZ |
9538 | DRM_DEBUG_KMS("Disabling package C8+\n"); |
9539 | ||
9540 | hsw_restore_lcpll(dev_priv); | |
c67a470b PZ |
9541 | lpt_init_pch_refclk(dev); |
9542 | ||
9543 | if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) { | |
9544 | val = I915_READ(SOUTH_DSPCLK_GATE_D); | |
9545 | val |= PCH_LP_PARTITION_LEVEL_DISABLE; | |
9546 | I915_WRITE(SOUTH_DSPCLK_GATE_D, val); | |
9547 | } | |
9548 | ||
9549 | intel_prepare_ddi(dev); | |
c67a470b PZ |
9550 | } |
9551 | ||
27c329ed | 9552 | static void broxton_modeset_commit_cdclk(struct drm_atomic_state *old_state) |
f8437dd1 | 9553 | { |
a821fc46 | 9554 | struct drm_device *dev = old_state->dev; |
27c329ed | 9555 | unsigned int req_cdclk = to_intel_atomic_state(old_state)->cdclk; |
f8437dd1 | 9556 | |
27c329ed | 9557 | broxton_set_cdclk(dev, req_cdclk); |
f8437dd1 VK |
9558 | } |
9559 | ||
b432e5cf | 9560 | /* compute the max rate for new configuration */ |
27c329ed | 9561 | static int ilk_max_pixel_rate(struct drm_atomic_state *state) |
b432e5cf | 9562 | { |
b432e5cf | 9563 | struct intel_crtc *intel_crtc; |
27c329ed | 9564 | struct intel_crtc_state *crtc_state; |
b432e5cf | 9565 | int max_pixel_rate = 0; |
b432e5cf | 9566 | |
27c329ed ML |
9567 | for_each_intel_crtc(state->dev, intel_crtc) { |
9568 | int pixel_rate; | |
9569 | ||
9570 | crtc_state = intel_atomic_get_crtc_state(state, intel_crtc); | |
9571 | if (IS_ERR(crtc_state)) | |
9572 | return PTR_ERR(crtc_state); | |
9573 | ||
9574 | if (!crtc_state->base.enable) | |
b432e5cf VS |
9575 | continue; |
9576 | ||
27c329ed | 9577 | pixel_rate = ilk_pipe_pixel_rate(crtc_state); |
b432e5cf VS |
9578 | |
9579 | /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */ | |
27c329ed | 9580 | if (IS_BROADWELL(state->dev) && crtc_state->ips_enabled) |
b432e5cf VS |
9581 | pixel_rate = DIV_ROUND_UP(pixel_rate * 100, 95); |
9582 | ||
9583 | max_pixel_rate = max(max_pixel_rate, pixel_rate); | |
9584 | } | |
9585 | ||
9586 | return max_pixel_rate; | |
9587 | } | |
9588 | ||
9589 | static void broadwell_set_cdclk(struct drm_device *dev, int cdclk) | |
9590 | { | |
9591 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9592 | uint32_t val, data; | |
9593 | int ret; | |
9594 | ||
9595 | if (WARN((I915_READ(LCPLL_CTL) & | |
9596 | (LCPLL_PLL_DISABLE | LCPLL_PLL_LOCK | | |
9597 | LCPLL_CD_CLOCK_DISABLE | LCPLL_ROOT_CD_CLOCK_DISABLE | | |
9598 | LCPLL_CD2X_CLOCK_DISABLE | LCPLL_POWER_DOWN_ALLOW | | |
9599 | LCPLL_CD_SOURCE_FCLK)) != LCPLL_PLL_LOCK, | |
9600 | "trying to change cdclk frequency with cdclk not enabled\n")) | |
9601 | return; | |
9602 | ||
9603 | mutex_lock(&dev_priv->rps.hw_lock); | |
9604 | ret = sandybridge_pcode_write(dev_priv, | |
9605 | BDW_PCODE_DISPLAY_FREQ_CHANGE_REQ, 0x0); | |
9606 | mutex_unlock(&dev_priv->rps.hw_lock); | |
9607 | if (ret) { | |
9608 | DRM_ERROR("failed to inform pcode about cdclk change\n"); | |
9609 | return; | |
9610 | } | |
9611 | ||
9612 | val = I915_READ(LCPLL_CTL); | |
9613 | val |= LCPLL_CD_SOURCE_FCLK; | |
9614 | I915_WRITE(LCPLL_CTL, val); | |
9615 | ||
9616 | if (wait_for_atomic_us(I915_READ(LCPLL_CTL) & | |
9617 | LCPLL_CD_SOURCE_FCLK_DONE, 1)) | |
9618 | DRM_ERROR("Switching to FCLK failed\n"); | |
9619 | ||
9620 | val = I915_READ(LCPLL_CTL); | |
9621 | val &= ~LCPLL_CLK_FREQ_MASK; | |
9622 | ||
9623 | switch (cdclk) { | |
9624 | case 450000: | |
9625 | val |= LCPLL_CLK_FREQ_450; | |
9626 | data = 0; | |
9627 | break; | |
9628 | case 540000: | |
9629 | val |= LCPLL_CLK_FREQ_54O_BDW; | |
9630 | data = 1; | |
9631 | break; | |
9632 | case 337500: | |
9633 | val |= LCPLL_CLK_FREQ_337_5_BDW; | |
9634 | data = 2; | |
9635 | break; | |
9636 | case 675000: | |
9637 | val |= LCPLL_CLK_FREQ_675_BDW; | |
9638 | data = 3; | |
9639 | break; | |
9640 | default: | |
9641 | WARN(1, "invalid cdclk frequency\n"); | |
9642 | return; | |
9643 | } | |
9644 | ||
9645 | I915_WRITE(LCPLL_CTL, val); | |
9646 | ||
9647 | val = I915_READ(LCPLL_CTL); | |
9648 | val &= ~LCPLL_CD_SOURCE_FCLK; | |
9649 | I915_WRITE(LCPLL_CTL, val); | |
9650 | ||
9651 | if (wait_for_atomic_us((I915_READ(LCPLL_CTL) & | |
9652 | LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1)) | |
9653 | DRM_ERROR("Switching back to LCPLL failed\n"); | |
9654 | ||
9655 | mutex_lock(&dev_priv->rps.hw_lock); | |
9656 | sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, data); | |
9657 | mutex_unlock(&dev_priv->rps.hw_lock); | |
9658 | ||
9659 | intel_update_cdclk(dev); | |
9660 | ||
9661 | WARN(cdclk != dev_priv->cdclk_freq, | |
9662 | "cdclk requested %d kHz but got %d kHz\n", | |
9663 | cdclk, dev_priv->cdclk_freq); | |
9664 | } | |
9665 | ||
27c329ed | 9666 | static int broadwell_modeset_calc_cdclk(struct drm_atomic_state *state) |
b432e5cf | 9667 | { |
27c329ed ML |
9668 | struct drm_i915_private *dev_priv = to_i915(state->dev); |
9669 | int max_pixclk = ilk_max_pixel_rate(state); | |
b432e5cf VS |
9670 | int cdclk; |
9671 | ||
9672 | /* | |
9673 | * FIXME should also account for plane ratio | |
9674 | * once 64bpp pixel formats are supported. | |
9675 | */ | |
27c329ed | 9676 | if (max_pixclk > 540000) |
b432e5cf | 9677 | cdclk = 675000; |
27c329ed | 9678 | else if (max_pixclk > 450000) |
b432e5cf | 9679 | cdclk = 540000; |
27c329ed | 9680 | else if (max_pixclk > 337500) |
b432e5cf VS |
9681 | cdclk = 450000; |
9682 | else | |
9683 | cdclk = 337500; | |
9684 | ||
9685 | /* | |
9686 | * FIXME move the cdclk caclulation to | |
9687 | * compute_config() so we can fail gracegully. | |
9688 | */ | |
9689 | if (cdclk > dev_priv->max_cdclk_freq) { | |
9690 | DRM_ERROR("requested cdclk (%d kHz) exceeds max (%d kHz)\n", | |
9691 | cdclk, dev_priv->max_cdclk_freq); | |
9692 | cdclk = dev_priv->max_cdclk_freq; | |
9693 | } | |
9694 | ||
27c329ed | 9695 | to_intel_atomic_state(state)->cdclk = cdclk; |
b432e5cf VS |
9696 | |
9697 | return 0; | |
9698 | } | |
9699 | ||
27c329ed | 9700 | static void broadwell_modeset_commit_cdclk(struct drm_atomic_state *old_state) |
b432e5cf | 9701 | { |
27c329ed ML |
9702 | struct drm_device *dev = old_state->dev; |
9703 | unsigned int req_cdclk = to_intel_atomic_state(old_state)->cdclk; | |
b432e5cf | 9704 | |
27c329ed | 9705 | broadwell_set_cdclk(dev, req_cdclk); |
b432e5cf VS |
9706 | } |
9707 | ||
190f68c5 ACO |
9708 | static int haswell_crtc_compute_clock(struct intel_crtc *crtc, |
9709 | struct intel_crtc_state *crtc_state) | |
09b4ddf9 | 9710 | { |
190f68c5 | 9711 | if (!intel_ddi_pll_select(crtc, crtc_state)) |
6441ab5f | 9712 | return -EINVAL; |
716c2e55 | 9713 | |
c7653199 | 9714 | crtc->lowfreq_avail = false; |
644cef34 | 9715 | |
c8f7a0db | 9716 | return 0; |
79e53945 JB |
9717 | } |
9718 | ||
3760b59c S |
9719 | static void bxt_get_ddi_pll(struct drm_i915_private *dev_priv, |
9720 | enum port port, | |
9721 | struct intel_crtc_state *pipe_config) | |
9722 | { | |
9723 | switch (port) { | |
9724 | case PORT_A: | |
9725 | pipe_config->ddi_pll_sel = SKL_DPLL0; | |
9726 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL1; | |
9727 | break; | |
9728 | case PORT_B: | |
9729 | pipe_config->ddi_pll_sel = SKL_DPLL1; | |
9730 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL2; | |
9731 | break; | |
9732 | case PORT_C: | |
9733 | pipe_config->ddi_pll_sel = SKL_DPLL2; | |
9734 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL3; | |
9735 | break; | |
9736 | default: | |
9737 | DRM_ERROR("Incorrect port type\n"); | |
9738 | } | |
9739 | } | |
9740 | ||
96b7dfb7 S |
9741 | static void skylake_get_ddi_pll(struct drm_i915_private *dev_priv, |
9742 | enum port port, | |
5cec258b | 9743 | struct intel_crtc_state *pipe_config) |
96b7dfb7 | 9744 | { |
3148ade7 | 9745 | u32 temp, dpll_ctl1; |
96b7dfb7 S |
9746 | |
9747 | temp = I915_READ(DPLL_CTRL2) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port); | |
9748 | pipe_config->ddi_pll_sel = temp >> (port * 3 + 1); | |
9749 | ||
9750 | switch (pipe_config->ddi_pll_sel) { | |
3148ade7 DL |
9751 | case SKL_DPLL0: |
9752 | /* | |
9753 | * On SKL the eDP DPLL (DPLL0 as we don't use SSC) is not part | |
9754 | * of the shared DPLL framework and thus needs to be read out | |
9755 | * separately | |
9756 | */ | |
9757 | dpll_ctl1 = I915_READ(DPLL_CTRL1); | |
9758 | pipe_config->dpll_hw_state.ctrl1 = dpll_ctl1 & 0x3f; | |
9759 | break; | |
96b7dfb7 S |
9760 | case SKL_DPLL1: |
9761 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL1; | |
9762 | break; | |
9763 | case SKL_DPLL2: | |
9764 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL2; | |
9765 | break; | |
9766 | case SKL_DPLL3: | |
9767 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL3; | |
9768 | break; | |
96b7dfb7 S |
9769 | } |
9770 | } | |
9771 | ||
7d2c8175 DL |
9772 | static void haswell_get_ddi_pll(struct drm_i915_private *dev_priv, |
9773 | enum port port, | |
5cec258b | 9774 | struct intel_crtc_state *pipe_config) |
7d2c8175 DL |
9775 | { |
9776 | pipe_config->ddi_pll_sel = I915_READ(PORT_CLK_SEL(port)); | |
9777 | ||
9778 | switch (pipe_config->ddi_pll_sel) { | |
9779 | case PORT_CLK_SEL_WRPLL1: | |
9780 | pipe_config->shared_dpll = DPLL_ID_WRPLL1; | |
9781 | break; | |
9782 | case PORT_CLK_SEL_WRPLL2: | |
9783 | pipe_config->shared_dpll = DPLL_ID_WRPLL2; | |
9784 | break; | |
9785 | } | |
9786 | } | |
9787 | ||
26804afd | 9788 | static void haswell_get_ddi_port_state(struct intel_crtc *crtc, |
5cec258b | 9789 | struct intel_crtc_state *pipe_config) |
26804afd DV |
9790 | { |
9791 | struct drm_device *dev = crtc->base.dev; | |
9792 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d452c5b6 | 9793 | struct intel_shared_dpll *pll; |
26804afd DV |
9794 | enum port port; |
9795 | uint32_t tmp; | |
9796 | ||
9797 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder)); | |
9798 | ||
9799 | port = (tmp & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT; | |
9800 | ||
96b7dfb7 S |
9801 | if (IS_SKYLAKE(dev)) |
9802 | skylake_get_ddi_pll(dev_priv, port, pipe_config); | |
3760b59c S |
9803 | else if (IS_BROXTON(dev)) |
9804 | bxt_get_ddi_pll(dev_priv, port, pipe_config); | |
96b7dfb7 S |
9805 | else |
9806 | haswell_get_ddi_pll(dev_priv, port, pipe_config); | |
9cd86933 | 9807 | |
d452c5b6 DV |
9808 | if (pipe_config->shared_dpll >= 0) { |
9809 | pll = &dev_priv->shared_dplls[pipe_config->shared_dpll]; | |
9810 | ||
9811 | WARN_ON(!pll->get_hw_state(dev_priv, pll, | |
9812 | &pipe_config->dpll_hw_state)); | |
9813 | } | |
9814 | ||
26804afd DV |
9815 | /* |
9816 | * Haswell has only FDI/PCH transcoder A. It is which is connected to | |
9817 | * DDI E. So just check whether this pipe is wired to DDI E and whether | |
9818 | * the PCH transcoder is on. | |
9819 | */ | |
ca370455 DL |
9820 | if (INTEL_INFO(dev)->gen < 9 && |
9821 | (port == PORT_E) && I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) { | |
26804afd DV |
9822 | pipe_config->has_pch_encoder = true; |
9823 | ||
9824 | tmp = I915_READ(FDI_RX_CTL(PIPE_A)); | |
9825 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
9826 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
9827 | ||
9828 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
9829 | } | |
9830 | } | |
9831 | ||
0e8ffe1b | 9832 | static bool haswell_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 9833 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
9834 | { |
9835 | struct drm_device *dev = crtc->base.dev; | |
9836 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa2fe9a | 9837 | enum intel_display_power_domain pfit_domain; |
0e8ffe1b DV |
9838 | uint32_t tmp; |
9839 | ||
f458ebbc | 9840 | if (!intel_display_power_is_enabled(dev_priv, |
b5482bd0 ID |
9841 | POWER_DOMAIN_PIPE(crtc->pipe))) |
9842 | return false; | |
9843 | ||
e143a21c | 9844 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 DV |
9845 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
9846 | ||
eccb140b DV |
9847 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); |
9848 | if (tmp & TRANS_DDI_FUNC_ENABLE) { | |
9849 | enum pipe trans_edp_pipe; | |
9850 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { | |
9851 | default: | |
9852 | WARN(1, "unknown pipe linked to edp transcoder\n"); | |
9853 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
9854 | case TRANS_DDI_EDP_INPUT_A_ON: | |
9855 | trans_edp_pipe = PIPE_A; | |
9856 | break; | |
9857 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
9858 | trans_edp_pipe = PIPE_B; | |
9859 | break; | |
9860 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
9861 | trans_edp_pipe = PIPE_C; | |
9862 | break; | |
9863 | } | |
9864 | ||
9865 | if (trans_edp_pipe == crtc->pipe) | |
9866 | pipe_config->cpu_transcoder = TRANSCODER_EDP; | |
9867 | } | |
9868 | ||
f458ebbc | 9869 | if (!intel_display_power_is_enabled(dev_priv, |
eccb140b | 9870 | POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder))) |
2bfce950 PZ |
9871 | return false; |
9872 | ||
eccb140b | 9873 | tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder)); |
0e8ffe1b DV |
9874 | if (!(tmp & PIPECONF_ENABLE)) |
9875 | return false; | |
9876 | ||
26804afd | 9877 | haswell_get_ddi_port_state(crtc, pipe_config); |
627eb5a3 | 9878 | |
1bd1bd80 DV |
9879 | intel_get_pipe_timings(crtc, pipe_config); |
9880 | ||
a1b2278e CK |
9881 | if (INTEL_INFO(dev)->gen >= 9) { |
9882 | skl_init_scalers(dev, crtc, pipe_config); | |
9883 | } | |
9884 | ||
2fa2fe9a | 9885 | pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe); |
af99ceda CK |
9886 | |
9887 | if (INTEL_INFO(dev)->gen >= 9) { | |
9888 | pipe_config->scaler_state.scaler_id = -1; | |
9889 | pipe_config->scaler_state.scaler_users &= ~(1 << SKL_CRTC_INDEX); | |
9890 | } | |
9891 | ||
bd2e244f | 9892 | if (intel_display_power_is_enabled(dev_priv, pfit_domain)) { |
ff6d9f55 | 9893 | if (INTEL_INFO(dev)->gen == 9) |
bd2e244f | 9894 | skylake_get_pfit_config(crtc, pipe_config); |
ff6d9f55 | 9895 | else if (INTEL_INFO(dev)->gen < 9) |
bd2e244f | 9896 | ironlake_get_pfit_config(crtc, pipe_config); |
ff6d9f55 JB |
9897 | else |
9898 | MISSING_CASE(INTEL_INFO(dev)->gen); | |
bd2e244f | 9899 | } |
88adfff1 | 9900 | |
e59150dc JB |
9901 | if (IS_HASWELL(dev)) |
9902 | pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) && | |
9903 | (I915_READ(IPS_CTL) & IPS_ENABLE); | |
42db64ef | 9904 | |
ebb69c95 CT |
9905 | if (pipe_config->cpu_transcoder != TRANSCODER_EDP) { |
9906 | pipe_config->pixel_multiplier = | |
9907 | I915_READ(PIPE_MULT(pipe_config->cpu_transcoder)) + 1; | |
9908 | } else { | |
9909 | pipe_config->pixel_multiplier = 1; | |
9910 | } | |
6c49f241 | 9911 | |
0e8ffe1b DV |
9912 | return true; |
9913 | } | |
9914 | ||
560b85bb CW |
9915 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
9916 | { | |
9917 | struct drm_device *dev = crtc->dev; | |
9918 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9919 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
dc41c154 | 9920 | uint32_t cntl = 0, size = 0; |
560b85bb | 9921 | |
dc41c154 | 9922 | if (base) { |
3dd512fb MR |
9923 | unsigned int width = intel_crtc->base.cursor->state->crtc_w; |
9924 | unsigned int height = intel_crtc->base.cursor->state->crtc_h; | |
dc41c154 VS |
9925 | unsigned int stride = roundup_pow_of_two(width) * 4; |
9926 | ||
9927 | switch (stride) { | |
9928 | default: | |
9929 | WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n", | |
9930 | width, stride); | |
9931 | stride = 256; | |
9932 | /* fallthrough */ | |
9933 | case 256: | |
9934 | case 512: | |
9935 | case 1024: | |
9936 | case 2048: | |
9937 | break; | |
4b0e333e CW |
9938 | } |
9939 | ||
dc41c154 VS |
9940 | cntl |= CURSOR_ENABLE | |
9941 | CURSOR_GAMMA_ENABLE | | |
9942 | CURSOR_FORMAT_ARGB | | |
9943 | CURSOR_STRIDE(stride); | |
9944 | ||
9945 | size = (height << 12) | width; | |
4b0e333e | 9946 | } |
560b85bb | 9947 | |
dc41c154 VS |
9948 | if (intel_crtc->cursor_cntl != 0 && |
9949 | (intel_crtc->cursor_base != base || | |
9950 | intel_crtc->cursor_size != size || | |
9951 | intel_crtc->cursor_cntl != cntl)) { | |
9952 | /* On these chipsets we can only modify the base/size/stride | |
9953 | * whilst the cursor is disabled. | |
9954 | */ | |
9955 | I915_WRITE(_CURACNTR, 0); | |
4b0e333e | 9956 | POSTING_READ(_CURACNTR); |
dc41c154 | 9957 | intel_crtc->cursor_cntl = 0; |
4b0e333e | 9958 | } |
560b85bb | 9959 | |
99d1f387 | 9960 | if (intel_crtc->cursor_base != base) { |
9db4a9c7 | 9961 | I915_WRITE(_CURABASE, base); |
99d1f387 VS |
9962 | intel_crtc->cursor_base = base; |
9963 | } | |
4726e0b0 | 9964 | |
dc41c154 VS |
9965 | if (intel_crtc->cursor_size != size) { |
9966 | I915_WRITE(CURSIZE, size); | |
9967 | intel_crtc->cursor_size = size; | |
4b0e333e | 9968 | } |
560b85bb | 9969 | |
4b0e333e | 9970 | if (intel_crtc->cursor_cntl != cntl) { |
4b0e333e CW |
9971 | I915_WRITE(_CURACNTR, cntl); |
9972 | POSTING_READ(_CURACNTR); | |
4b0e333e | 9973 | intel_crtc->cursor_cntl = cntl; |
560b85bb | 9974 | } |
560b85bb CW |
9975 | } |
9976 | ||
560b85bb | 9977 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) |
65a21cd6 JB |
9978 | { |
9979 | struct drm_device *dev = crtc->dev; | |
9980 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9981 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9982 | int pipe = intel_crtc->pipe; | |
4b0e333e CW |
9983 | uint32_t cntl; |
9984 | ||
9985 | cntl = 0; | |
9986 | if (base) { | |
9987 | cntl = MCURSOR_GAMMA_ENABLE; | |
3dd512fb | 9988 | switch (intel_crtc->base.cursor->state->crtc_w) { |
4726e0b0 SK |
9989 | case 64: |
9990 | cntl |= CURSOR_MODE_64_ARGB_AX; | |
9991 | break; | |
9992 | case 128: | |
9993 | cntl |= CURSOR_MODE_128_ARGB_AX; | |
9994 | break; | |
9995 | case 256: | |
9996 | cntl |= CURSOR_MODE_256_ARGB_AX; | |
9997 | break; | |
9998 | default: | |
3dd512fb | 9999 | MISSING_CASE(intel_crtc->base.cursor->state->crtc_w); |
4726e0b0 | 10000 | return; |
65a21cd6 | 10001 | } |
4b0e333e | 10002 | cntl |= pipe << 28; /* Connect to correct pipe */ |
47bf17a7 VS |
10003 | |
10004 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) | |
10005 | cntl |= CURSOR_PIPE_CSC_ENABLE; | |
4b0e333e | 10006 | } |
65a21cd6 | 10007 | |
8e7d688b | 10008 | if (crtc->cursor->state->rotation == BIT(DRM_ROTATE_180)) |
4398ad45 VS |
10009 | cntl |= CURSOR_ROTATE_180; |
10010 | ||
4b0e333e CW |
10011 | if (intel_crtc->cursor_cntl != cntl) { |
10012 | I915_WRITE(CURCNTR(pipe), cntl); | |
10013 | POSTING_READ(CURCNTR(pipe)); | |
10014 | intel_crtc->cursor_cntl = cntl; | |
65a21cd6 | 10015 | } |
4b0e333e | 10016 | |
65a21cd6 | 10017 | /* and commit changes on next vblank */ |
5efb3e28 VS |
10018 | I915_WRITE(CURBASE(pipe), base); |
10019 | POSTING_READ(CURBASE(pipe)); | |
99d1f387 VS |
10020 | |
10021 | intel_crtc->cursor_base = base; | |
65a21cd6 JB |
10022 | } |
10023 | ||
cda4b7d3 | 10024 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
10025 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
10026 | bool on) | |
cda4b7d3 CW |
10027 | { |
10028 | struct drm_device *dev = crtc->dev; | |
10029 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10030 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
10031 | int pipe = intel_crtc->pipe; | |
3d7d6510 MR |
10032 | int x = crtc->cursor_x; |
10033 | int y = crtc->cursor_y; | |
d6e4db15 | 10034 | u32 base = 0, pos = 0; |
cda4b7d3 | 10035 | |
d6e4db15 | 10036 | if (on) |
cda4b7d3 | 10037 | base = intel_crtc->cursor_addr; |
cda4b7d3 | 10038 | |
6e3c9717 | 10039 | if (x >= intel_crtc->config->pipe_src_w) |
d6e4db15 VS |
10040 | base = 0; |
10041 | ||
6e3c9717 | 10042 | if (y >= intel_crtc->config->pipe_src_h) |
cda4b7d3 CW |
10043 | base = 0; |
10044 | ||
10045 | if (x < 0) { | |
3dd512fb | 10046 | if (x + intel_crtc->base.cursor->state->crtc_w <= 0) |
cda4b7d3 CW |
10047 | base = 0; |
10048 | ||
10049 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
10050 | x = -x; | |
10051 | } | |
10052 | pos |= x << CURSOR_X_SHIFT; | |
10053 | ||
10054 | if (y < 0) { | |
3dd512fb | 10055 | if (y + intel_crtc->base.cursor->state->crtc_h <= 0) |
cda4b7d3 CW |
10056 | base = 0; |
10057 | ||
10058 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
10059 | y = -y; | |
10060 | } | |
10061 | pos |= y << CURSOR_Y_SHIFT; | |
10062 | ||
4b0e333e | 10063 | if (base == 0 && intel_crtc->cursor_base == 0) |
cda4b7d3 CW |
10064 | return; |
10065 | ||
5efb3e28 VS |
10066 | I915_WRITE(CURPOS(pipe), pos); |
10067 | ||
4398ad45 VS |
10068 | /* ILK+ do this automagically */ |
10069 | if (HAS_GMCH_DISPLAY(dev) && | |
8e7d688b | 10070 | crtc->cursor->state->rotation == BIT(DRM_ROTATE_180)) { |
3dd512fb MR |
10071 | base += (intel_crtc->base.cursor->state->crtc_h * |
10072 | intel_crtc->base.cursor->state->crtc_w - 1) * 4; | |
4398ad45 VS |
10073 | } |
10074 | ||
8ac54669 | 10075 | if (IS_845G(dev) || IS_I865G(dev)) |
5efb3e28 VS |
10076 | i845_update_cursor(crtc, base); |
10077 | else | |
10078 | i9xx_update_cursor(crtc, base); | |
cda4b7d3 CW |
10079 | } |
10080 | ||
dc41c154 VS |
10081 | static bool cursor_size_ok(struct drm_device *dev, |
10082 | uint32_t width, uint32_t height) | |
10083 | { | |
10084 | if (width == 0 || height == 0) | |
10085 | return false; | |
10086 | ||
10087 | /* | |
10088 | * 845g/865g are special in that they are only limited by | |
10089 | * the width of their cursors, the height is arbitrary up to | |
10090 | * the precision of the register. Everything else requires | |
10091 | * square cursors, limited to a few power-of-two sizes. | |
10092 | */ | |
10093 | if (IS_845G(dev) || IS_I865G(dev)) { | |
10094 | if ((width & 63) != 0) | |
10095 | return false; | |
10096 | ||
10097 | if (width > (IS_845G(dev) ? 64 : 512)) | |
10098 | return false; | |
10099 | ||
10100 | if (height > 1023) | |
10101 | return false; | |
10102 | } else { | |
10103 | switch (width | height) { | |
10104 | case 256: | |
10105 | case 128: | |
10106 | if (IS_GEN2(dev)) | |
10107 | return false; | |
10108 | case 64: | |
10109 | break; | |
10110 | default: | |
10111 | return false; | |
10112 | } | |
10113 | } | |
10114 | ||
10115 | return true; | |
10116 | } | |
10117 | ||
79e53945 | 10118 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 10119 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 10120 | { |
7203425a | 10121 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 10122 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 10123 | |
7203425a | 10124 | for (i = start; i < end; i++) { |
79e53945 JB |
10125 | intel_crtc->lut_r[i] = red[i] >> 8; |
10126 | intel_crtc->lut_g[i] = green[i] >> 8; | |
10127 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
10128 | } | |
10129 | ||
10130 | intel_crtc_load_lut(crtc); | |
10131 | } | |
10132 | ||
79e53945 JB |
10133 | /* VESA 640x480x72Hz mode to set on the pipe */ |
10134 | static struct drm_display_mode load_detect_mode = { | |
10135 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
10136 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
10137 | }; | |
10138 | ||
a8bb6818 DV |
10139 | struct drm_framebuffer * |
10140 | __intel_framebuffer_create(struct drm_device *dev, | |
10141 | struct drm_mode_fb_cmd2 *mode_cmd, | |
10142 | struct drm_i915_gem_object *obj) | |
d2dff872 CW |
10143 | { |
10144 | struct intel_framebuffer *intel_fb; | |
10145 | int ret; | |
10146 | ||
10147 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
10148 | if (!intel_fb) { | |
6ccb81f2 | 10149 | drm_gem_object_unreference(&obj->base); |
d2dff872 CW |
10150 | return ERR_PTR(-ENOMEM); |
10151 | } | |
10152 | ||
10153 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
dd4916c5 DV |
10154 | if (ret) |
10155 | goto err; | |
d2dff872 CW |
10156 | |
10157 | return &intel_fb->base; | |
dd4916c5 | 10158 | err: |
6ccb81f2 | 10159 | drm_gem_object_unreference(&obj->base); |
dd4916c5 DV |
10160 | kfree(intel_fb); |
10161 | ||
10162 | return ERR_PTR(ret); | |
d2dff872 CW |
10163 | } |
10164 | ||
b5ea642a | 10165 | static struct drm_framebuffer * |
a8bb6818 DV |
10166 | intel_framebuffer_create(struct drm_device *dev, |
10167 | struct drm_mode_fb_cmd2 *mode_cmd, | |
10168 | struct drm_i915_gem_object *obj) | |
10169 | { | |
10170 | struct drm_framebuffer *fb; | |
10171 | int ret; | |
10172 | ||
10173 | ret = i915_mutex_lock_interruptible(dev); | |
10174 | if (ret) | |
10175 | return ERR_PTR(ret); | |
10176 | fb = __intel_framebuffer_create(dev, mode_cmd, obj); | |
10177 | mutex_unlock(&dev->struct_mutex); | |
10178 | ||
10179 | return fb; | |
10180 | } | |
10181 | ||
d2dff872 CW |
10182 | static u32 |
10183 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
10184 | { | |
10185 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
10186 | return ALIGN(pitch, 64); | |
10187 | } | |
10188 | ||
10189 | static u32 | |
10190 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
10191 | { | |
10192 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
1267a26b | 10193 | return PAGE_ALIGN(pitch * mode->vdisplay); |
d2dff872 CW |
10194 | } |
10195 | ||
10196 | static struct drm_framebuffer * | |
10197 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
10198 | struct drm_display_mode *mode, | |
10199 | int depth, int bpp) | |
10200 | { | |
10201 | struct drm_i915_gem_object *obj; | |
0fed39bd | 10202 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; |
d2dff872 CW |
10203 | |
10204 | obj = i915_gem_alloc_object(dev, | |
10205 | intel_framebuffer_size_for_mode(mode, bpp)); | |
10206 | if (obj == NULL) | |
10207 | return ERR_PTR(-ENOMEM); | |
10208 | ||
10209 | mode_cmd.width = mode->hdisplay; | |
10210 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
10211 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
10212 | bpp); | |
5ca0c34a | 10213 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
10214 | |
10215 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
10216 | } | |
10217 | ||
10218 | static struct drm_framebuffer * | |
10219 | mode_fits_in_fbdev(struct drm_device *dev, | |
10220 | struct drm_display_mode *mode) | |
10221 | { | |
4520f53a | 10222 | #ifdef CONFIG_DRM_I915_FBDEV |
d2dff872 CW |
10223 | struct drm_i915_private *dev_priv = dev->dev_private; |
10224 | struct drm_i915_gem_object *obj; | |
10225 | struct drm_framebuffer *fb; | |
10226 | ||
4c0e5528 | 10227 | if (!dev_priv->fbdev) |
d2dff872 CW |
10228 | return NULL; |
10229 | ||
4c0e5528 | 10230 | if (!dev_priv->fbdev->fb) |
d2dff872 CW |
10231 | return NULL; |
10232 | ||
4c0e5528 DV |
10233 | obj = dev_priv->fbdev->fb->obj; |
10234 | BUG_ON(!obj); | |
10235 | ||
8bcd4553 | 10236 | fb = &dev_priv->fbdev->fb->base; |
01f2c773 VS |
10237 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
10238 | fb->bits_per_pixel)) | |
d2dff872 CW |
10239 | return NULL; |
10240 | ||
01f2c773 | 10241 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
10242 | return NULL; |
10243 | ||
10244 | return fb; | |
4520f53a DV |
10245 | #else |
10246 | return NULL; | |
10247 | #endif | |
d2dff872 CW |
10248 | } |
10249 | ||
d3a40d1b ACO |
10250 | static int intel_modeset_setup_plane_state(struct drm_atomic_state *state, |
10251 | struct drm_crtc *crtc, | |
10252 | struct drm_display_mode *mode, | |
10253 | struct drm_framebuffer *fb, | |
10254 | int x, int y) | |
10255 | { | |
10256 | struct drm_plane_state *plane_state; | |
10257 | int hdisplay, vdisplay; | |
10258 | int ret; | |
10259 | ||
10260 | plane_state = drm_atomic_get_plane_state(state, crtc->primary); | |
10261 | if (IS_ERR(plane_state)) | |
10262 | return PTR_ERR(plane_state); | |
10263 | ||
10264 | if (mode) | |
10265 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); | |
10266 | else | |
10267 | hdisplay = vdisplay = 0; | |
10268 | ||
10269 | ret = drm_atomic_set_crtc_for_plane(plane_state, fb ? crtc : NULL); | |
10270 | if (ret) | |
10271 | return ret; | |
10272 | drm_atomic_set_fb_for_plane(plane_state, fb); | |
10273 | plane_state->crtc_x = 0; | |
10274 | plane_state->crtc_y = 0; | |
10275 | plane_state->crtc_w = hdisplay; | |
10276 | plane_state->crtc_h = vdisplay; | |
10277 | plane_state->src_x = x << 16; | |
10278 | plane_state->src_y = y << 16; | |
10279 | plane_state->src_w = hdisplay << 16; | |
10280 | plane_state->src_h = vdisplay << 16; | |
10281 | ||
10282 | return 0; | |
10283 | } | |
10284 | ||
d2434ab7 | 10285 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 10286 | struct drm_display_mode *mode, |
51fd371b RC |
10287 | struct intel_load_detect_pipe *old, |
10288 | struct drm_modeset_acquire_ctx *ctx) | |
79e53945 JB |
10289 | { |
10290 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
10291 | struct intel_encoder *intel_encoder = |
10292 | intel_attached_encoder(connector); | |
79e53945 | 10293 | struct drm_crtc *possible_crtc; |
4ef69c7a | 10294 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
10295 | struct drm_crtc *crtc = NULL; |
10296 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 10297 | struct drm_framebuffer *fb; |
51fd371b | 10298 | struct drm_mode_config *config = &dev->mode_config; |
83a57153 | 10299 | struct drm_atomic_state *state = NULL; |
944b0c76 | 10300 | struct drm_connector_state *connector_state; |
4be07317 | 10301 | struct intel_crtc_state *crtc_state; |
51fd371b | 10302 | int ret, i = -1; |
79e53945 | 10303 | |
d2dff872 | 10304 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
c23cc417 | 10305 | connector->base.id, connector->name, |
8e329a03 | 10306 | encoder->base.id, encoder->name); |
d2dff872 | 10307 | |
51fd371b RC |
10308 | retry: |
10309 | ret = drm_modeset_lock(&config->connection_mutex, ctx); | |
10310 | if (ret) | |
ad3c558f | 10311 | goto fail; |
6e9f798d | 10312 | |
79e53945 JB |
10313 | /* |
10314 | * Algorithm gets a little messy: | |
7a5e4805 | 10315 | * |
79e53945 JB |
10316 | * - if the connector already has an assigned crtc, use it (but make |
10317 | * sure it's on first) | |
7a5e4805 | 10318 | * |
79e53945 JB |
10319 | * - try to find the first unused crtc that can drive this connector, |
10320 | * and use that if we find one | |
79e53945 JB |
10321 | */ |
10322 | ||
10323 | /* See if we already have a CRTC for this connector */ | |
10324 | if (encoder->crtc) { | |
10325 | crtc = encoder->crtc; | |
8261b191 | 10326 | |
51fd371b | 10327 | ret = drm_modeset_lock(&crtc->mutex, ctx); |
4d02e2de | 10328 | if (ret) |
ad3c558f | 10329 | goto fail; |
4d02e2de | 10330 | ret = drm_modeset_lock(&crtc->primary->mutex, ctx); |
51fd371b | 10331 | if (ret) |
ad3c558f | 10332 | goto fail; |
7b24056b | 10333 | |
24218aac | 10334 | old->dpms_mode = connector->dpms; |
8261b191 CW |
10335 | old->load_detect_temp = false; |
10336 | ||
10337 | /* Make sure the crtc and connector are running */ | |
24218aac DV |
10338 | if (connector->dpms != DRM_MODE_DPMS_ON) |
10339 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); | |
8261b191 | 10340 | |
7173188d | 10341 | return true; |
79e53945 JB |
10342 | } |
10343 | ||
10344 | /* Find an unused one (if possible) */ | |
70e1e0ec | 10345 | for_each_crtc(dev, possible_crtc) { |
79e53945 JB |
10346 | i++; |
10347 | if (!(encoder->possible_crtcs & (1 << i))) | |
10348 | continue; | |
83d65738 | 10349 | if (possible_crtc->state->enable) |
a459249c | 10350 | continue; |
a459249c VS |
10351 | |
10352 | crtc = possible_crtc; | |
10353 | break; | |
79e53945 JB |
10354 | } |
10355 | ||
10356 | /* | |
10357 | * If we didn't find an unused CRTC, don't use any. | |
10358 | */ | |
10359 | if (!crtc) { | |
7173188d | 10360 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
ad3c558f | 10361 | goto fail; |
79e53945 JB |
10362 | } |
10363 | ||
51fd371b RC |
10364 | ret = drm_modeset_lock(&crtc->mutex, ctx); |
10365 | if (ret) | |
ad3c558f | 10366 | goto fail; |
4d02e2de DV |
10367 | ret = drm_modeset_lock(&crtc->primary->mutex, ctx); |
10368 | if (ret) | |
ad3c558f | 10369 | goto fail; |
79e53945 JB |
10370 | |
10371 | intel_crtc = to_intel_crtc(crtc); | |
24218aac | 10372 | old->dpms_mode = connector->dpms; |
8261b191 | 10373 | old->load_detect_temp = true; |
d2dff872 | 10374 | old->release_fb = NULL; |
79e53945 | 10375 | |
83a57153 ACO |
10376 | state = drm_atomic_state_alloc(dev); |
10377 | if (!state) | |
10378 | return false; | |
10379 | ||
10380 | state->acquire_ctx = ctx; | |
10381 | ||
944b0c76 ACO |
10382 | connector_state = drm_atomic_get_connector_state(state, connector); |
10383 | if (IS_ERR(connector_state)) { | |
10384 | ret = PTR_ERR(connector_state); | |
10385 | goto fail; | |
10386 | } | |
10387 | ||
10388 | connector_state->crtc = crtc; | |
10389 | connector_state->best_encoder = &intel_encoder->base; | |
10390 | ||
4be07317 ACO |
10391 | crtc_state = intel_atomic_get_crtc_state(state, intel_crtc); |
10392 | if (IS_ERR(crtc_state)) { | |
10393 | ret = PTR_ERR(crtc_state); | |
10394 | goto fail; | |
10395 | } | |
10396 | ||
49d6fa21 | 10397 | crtc_state->base.active = crtc_state->base.enable = true; |
4be07317 | 10398 | |
6492711d CW |
10399 | if (!mode) |
10400 | mode = &load_detect_mode; | |
79e53945 | 10401 | |
d2dff872 CW |
10402 | /* We need a framebuffer large enough to accommodate all accesses |
10403 | * that the plane may generate whilst we perform load detection. | |
10404 | * We can not rely on the fbcon either being present (we get called | |
10405 | * during its initialisation to detect all boot displays, or it may | |
10406 | * not even exist) or that it is large enough to satisfy the | |
10407 | * requested mode. | |
10408 | */ | |
94352cf9 DV |
10409 | fb = mode_fits_in_fbdev(dev, mode); |
10410 | if (fb == NULL) { | |
d2dff872 | 10411 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 DV |
10412 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
10413 | old->release_fb = fb; | |
d2dff872 CW |
10414 | } else |
10415 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 10416 | if (IS_ERR(fb)) { |
d2dff872 | 10417 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
412b61d8 | 10418 | goto fail; |
79e53945 | 10419 | } |
79e53945 | 10420 | |
d3a40d1b ACO |
10421 | ret = intel_modeset_setup_plane_state(state, crtc, mode, fb, 0, 0); |
10422 | if (ret) | |
10423 | goto fail; | |
10424 | ||
8c7b5ccb ACO |
10425 | drm_mode_copy(&crtc_state->base.mode, mode); |
10426 | ||
568c634a | 10427 | if (intel_set_mode(state)) { |
6492711d | 10428 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
10429 | if (old->release_fb) |
10430 | old->release_fb->funcs->destroy(old->release_fb); | |
412b61d8 | 10431 | goto fail; |
79e53945 | 10432 | } |
9128b040 | 10433 | crtc->primary->crtc = crtc; |
7173188d | 10434 | |
79e53945 | 10435 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 10436 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
7173188d | 10437 | return true; |
412b61d8 | 10438 | |
ad3c558f | 10439 | fail: |
e5d958ef ACO |
10440 | drm_atomic_state_free(state); |
10441 | state = NULL; | |
83a57153 | 10442 | |
51fd371b RC |
10443 | if (ret == -EDEADLK) { |
10444 | drm_modeset_backoff(ctx); | |
10445 | goto retry; | |
10446 | } | |
10447 | ||
412b61d8 | 10448 | return false; |
79e53945 JB |
10449 | } |
10450 | ||
d2434ab7 | 10451 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
49172fee ACO |
10452 | struct intel_load_detect_pipe *old, |
10453 | struct drm_modeset_acquire_ctx *ctx) | |
79e53945 | 10454 | { |
83a57153 | 10455 | struct drm_device *dev = connector->dev; |
d2434ab7 DV |
10456 | struct intel_encoder *intel_encoder = |
10457 | intel_attached_encoder(connector); | |
4ef69c7a | 10458 | struct drm_encoder *encoder = &intel_encoder->base; |
7b24056b | 10459 | struct drm_crtc *crtc = encoder->crtc; |
412b61d8 | 10460 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
83a57153 | 10461 | struct drm_atomic_state *state; |
944b0c76 | 10462 | struct drm_connector_state *connector_state; |
4be07317 | 10463 | struct intel_crtc_state *crtc_state; |
d3a40d1b | 10464 | int ret; |
79e53945 | 10465 | |
d2dff872 | 10466 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
c23cc417 | 10467 | connector->base.id, connector->name, |
8e329a03 | 10468 | encoder->base.id, encoder->name); |
d2dff872 | 10469 | |
8261b191 | 10470 | if (old->load_detect_temp) { |
83a57153 | 10471 | state = drm_atomic_state_alloc(dev); |
944b0c76 ACO |
10472 | if (!state) |
10473 | goto fail; | |
83a57153 ACO |
10474 | |
10475 | state->acquire_ctx = ctx; | |
10476 | ||
944b0c76 ACO |
10477 | connector_state = drm_atomic_get_connector_state(state, connector); |
10478 | if (IS_ERR(connector_state)) | |
10479 | goto fail; | |
10480 | ||
4be07317 ACO |
10481 | crtc_state = intel_atomic_get_crtc_state(state, intel_crtc); |
10482 | if (IS_ERR(crtc_state)) | |
10483 | goto fail; | |
10484 | ||
944b0c76 ACO |
10485 | connector_state->best_encoder = NULL; |
10486 | connector_state->crtc = NULL; | |
10487 | ||
49d6fa21 | 10488 | crtc_state->base.enable = crtc_state->base.active = false; |
4be07317 | 10489 | |
d3a40d1b ACO |
10490 | ret = intel_modeset_setup_plane_state(state, crtc, NULL, NULL, |
10491 | 0, 0); | |
10492 | if (ret) | |
10493 | goto fail; | |
10494 | ||
568c634a | 10495 | ret = intel_set_mode(state); |
2bfb4627 ACO |
10496 | if (ret) |
10497 | goto fail; | |
d2dff872 | 10498 | |
36206361 DV |
10499 | if (old->release_fb) { |
10500 | drm_framebuffer_unregister_private(old->release_fb); | |
10501 | drm_framebuffer_unreference(old->release_fb); | |
10502 | } | |
d2dff872 | 10503 | |
0622a53c | 10504 | return; |
79e53945 JB |
10505 | } |
10506 | ||
c751ce4f | 10507 | /* Switch crtc and encoder back off if necessary */ |
24218aac DV |
10508 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
10509 | connector->funcs->dpms(connector, old->dpms_mode); | |
944b0c76 ACO |
10510 | |
10511 | return; | |
10512 | fail: | |
10513 | DRM_DEBUG_KMS("Couldn't release load detect pipe.\n"); | |
10514 | drm_atomic_state_free(state); | |
79e53945 JB |
10515 | } |
10516 | ||
da4a1efa | 10517 | static int i9xx_pll_refclk(struct drm_device *dev, |
5cec258b | 10518 | const struct intel_crtc_state *pipe_config) |
da4a1efa VS |
10519 | { |
10520 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10521 | u32 dpll = pipe_config->dpll_hw_state.dpll; | |
10522 | ||
10523 | if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN) | |
e91e941b | 10524 | return dev_priv->vbt.lvds_ssc_freq; |
da4a1efa VS |
10525 | else if (HAS_PCH_SPLIT(dev)) |
10526 | return 120000; | |
10527 | else if (!IS_GEN2(dev)) | |
10528 | return 96000; | |
10529 | else | |
10530 | return 48000; | |
10531 | } | |
10532 | ||
79e53945 | 10533 | /* Returns the clock of the currently programmed mode of the given pipe. */ |
f1f644dc | 10534 | static void i9xx_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 10535 | struct intel_crtc_state *pipe_config) |
79e53945 | 10536 | { |
f1f644dc | 10537 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 10538 | struct drm_i915_private *dev_priv = dev->dev_private; |
f1f644dc | 10539 | int pipe = pipe_config->cpu_transcoder; |
293623f7 | 10540 | u32 dpll = pipe_config->dpll_hw_state.dpll; |
79e53945 JB |
10541 | u32 fp; |
10542 | intel_clock_t clock; | |
dccbea3b | 10543 | int port_clock; |
da4a1efa | 10544 | int refclk = i9xx_pll_refclk(dev, pipe_config); |
79e53945 JB |
10545 | |
10546 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
293623f7 | 10547 | fp = pipe_config->dpll_hw_state.fp0; |
79e53945 | 10548 | else |
293623f7 | 10549 | fp = pipe_config->dpll_hw_state.fp1; |
79e53945 JB |
10550 | |
10551 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
10552 | if (IS_PINEVIEW(dev)) { |
10553 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
10554 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
10555 | } else { |
10556 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
10557 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
10558 | } | |
10559 | ||
a6c45cf0 | 10560 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
10561 | if (IS_PINEVIEW(dev)) |
10562 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
10563 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
10564 | else |
10565 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
10566 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
10567 | ||
10568 | switch (dpll & DPLL_MODE_MASK) { | |
10569 | case DPLLB_MODE_DAC_SERIAL: | |
10570 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
10571 | 5 : 10; | |
10572 | break; | |
10573 | case DPLLB_MODE_LVDS: | |
10574 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
10575 | 7 : 14; | |
10576 | break; | |
10577 | default: | |
28c97730 | 10578 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 | 10579 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
f1f644dc | 10580 | return; |
79e53945 JB |
10581 | } |
10582 | ||
ac58c3f0 | 10583 | if (IS_PINEVIEW(dev)) |
dccbea3b | 10584 | port_clock = pnv_calc_dpll_params(refclk, &clock); |
ac58c3f0 | 10585 | else |
dccbea3b | 10586 | port_clock = i9xx_calc_dpll_params(refclk, &clock); |
79e53945 | 10587 | } else { |
0fb58223 | 10588 | u32 lvds = IS_I830(dev) ? 0 : I915_READ(LVDS); |
b1c560d1 | 10589 | bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN); |
79e53945 JB |
10590 | |
10591 | if (is_lvds) { | |
10592 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
10593 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
b1c560d1 VS |
10594 | |
10595 | if (lvds & LVDS_CLKB_POWER_UP) | |
10596 | clock.p2 = 7; | |
10597 | else | |
10598 | clock.p2 = 14; | |
79e53945 JB |
10599 | } else { |
10600 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
10601 | clock.p1 = 2; | |
10602 | else { | |
10603 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
10604 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
10605 | } | |
10606 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
10607 | clock.p2 = 4; | |
10608 | else | |
10609 | clock.p2 = 2; | |
79e53945 | 10610 | } |
da4a1efa | 10611 | |
dccbea3b | 10612 | port_clock = i9xx_calc_dpll_params(refclk, &clock); |
79e53945 JB |
10613 | } |
10614 | ||
18442d08 VS |
10615 | /* |
10616 | * This value includes pixel_multiplier. We will use | |
241bfc38 | 10617 | * port_clock to compute adjusted_mode.crtc_clock in the |
18442d08 VS |
10618 | * encoder's get_config() function. |
10619 | */ | |
dccbea3b | 10620 | pipe_config->port_clock = port_clock; |
f1f644dc JB |
10621 | } |
10622 | ||
6878da05 VS |
10623 | int intel_dotclock_calculate(int link_freq, |
10624 | const struct intel_link_m_n *m_n) | |
f1f644dc | 10625 | { |
f1f644dc JB |
10626 | /* |
10627 | * The calculation for the data clock is: | |
1041a02f | 10628 | * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp |
f1f644dc | 10629 | * But we want to avoid losing precison if possible, so: |
1041a02f | 10630 | * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp)) |
f1f644dc JB |
10631 | * |
10632 | * and the link clock is simpler: | |
1041a02f | 10633 | * link_clock = (m * link_clock) / n |
f1f644dc JB |
10634 | */ |
10635 | ||
6878da05 VS |
10636 | if (!m_n->link_n) |
10637 | return 0; | |
f1f644dc | 10638 | |
6878da05 VS |
10639 | return div_u64((u64)m_n->link_m * link_freq, m_n->link_n); |
10640 | } | |
f1f644dc | 10641 | |
18442d08 | 10642 | static void ironlake_pch_clock_get(struct intel_crtc *crtc, |
5cec258b | 10643 | struct intel_crtc_state *pipe_config) |
6878da05 VS |
10644 | { |
10645 | struct drm_device *dev = crtc->base.dev; | |
79e53945 | 10646 | |
18442d08 VS |
10647 | /* read out port_clock from the DPLL */ |
10648 | i9xx_crtc_clock_get(crtc, pipe_config); | |
f1f644dc | 10649 | |
f1f644dc | 10650 | /* |
18442d08 | 10651 | * This value does not include pixel_multiplier. |
241bfc38 | 10652 | * We will check that port_clock and adjusted_mode.crtc_clock |
18442d08 VS |
10653 | * agree once we know their relationship in the encoder's |
10654 | * get_config() function. | |
79e53945 | 10655 | */ |
2d112de7 | 10656 | pipe_config->base.adjusted_mode.crtc_clock = |
18442d08 VS |
10657 | intel_dotclock_calculate(intel_fdi_link_freq(dev) * 10000, |
10658 | &pipe_config->fdi_m_n); | |
79e53945 JB |
10659 | } |
10660 | ||
10661 | /** Returns the currently programmed mode of the given pipe. */ | |
10662 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
10663 | struct drm_crtc *crtc) | |
10664 | { | |
548f245b | 10665 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 10666 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6e3c9717 | 10667 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
79e53945 | 10668 | struct drm_display_mode *mode; |
5cec258b | 10669 | struct intel_crtc_state pipe_config; |
fe2b8f9d PZ |
10670 | int htot = I915_READ(HTOTAL(cpu_transcoder)); |
10671 | int hsync = I915_READ(HSYNC(cpu_transcoder)); | |
10672 | int vtot = I915_READ(VTOTAL(cpu_transcoder)); | |
10673 | int vsync = I915_READ(VSYNC(cpu_transcoder)); | |
293623f7 | 10674 | enum pipe pipe = intel_crtc->pipe; |
79e53945 JB |
10675 | |
10676 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
10677 | if (!mode) | |
10678 | return NULL; | |
10679 | ||
f1f644dc JB |
10680 | /* |
10681 | * Construct a pipe_config sufficient for getting the clock info | |
10682 | * back out of crtc_clock_get. | |
10683 | * | |
10684 | * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need | |
10685 | * to use a real value here instead. | |
10686 | */ | |
293623f7 | 10687 | pipe_config.cpu_transcoder = (enum transcoder) pipe; |
f1f644dc | 10688 | pipe_config.pixel_multiplier = 1; |
293623f7 VS |
10689 | pipe_config.dpll_hw_state.dpll = I915_READ(DPLL(pipe)); |
10690 | pipe_config.dpll_hw_state.fp0 = I915_READ(FP0(pipe)); | |
10691 | pipe_config.dpll_hw_state.fp1 = I915_READ(FP1(pipe)); | |
f1f644dc JB |
10692 | i9xx_crtc_clock_get(intel_crtc, &pipe_config); |
10693 | ||
773ae034 | 10694 | mode->clock = pipe_config.port_clock / pipe_config.pixel_multiplier; |
79e53945 JB |
10695 | mode->hdisplay = (htot & 0xffff) + 1; |
10696 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
10697 | mode->hsync_start = (hsync & 0xffff) + 1; | |
10698 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
10699 | mode->vdisplay = (vtot & 0xffff) + 1; | |
10700 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
10701 | mode->vsync_start = (vsync & 0xffff) + 1; | |
10702 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
10703 | ||
10704 | drm_mode_set_name(mode); | |
79e53945 JB |
10705 | |
10706 | return mode; | |
10707 | } | |
10708 | ||
f047e395 CW |
10709 | void intel_mark_busy(struct drm_device *dev) |
10710 | { | |
c67a470b PZ |
10711 | struct drm_i915_private *dev_priv = dev->dev_private; |
10712 | ||
f62a0076 CW |
10713 | if (dev_priv->mm.busy) |
10714 | return; | |
10715 | ||
43694d69 | 10716 | intel_runtime_pm_get(dev_priv); |
c67a470b | 10717 | i915_update_gfx_val(dev_priv); |
43cf3bf0 CW |
10718 | if (INTEL_INFO(dev)->gen >= 6) |
10719 | gen6_rps_busy(dev_priv); | |
f62a0076 | 10720 | dev_priv->mm.busy = true; |
f047e395 CW |
10721 | } |
10722 | ||
10723 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 10724 | { |
c67a470b | 10725 | struct drm_i915_private *dev_priv = dev->dev_private; |
652c393a | 10726 | |
f62a0076 CW |
10727 | if (!dev_priv->mm.busy) |
10728 | return; | |
10729 | ||
10730 | dev_priv->mm.busy = false; | |
10731 | ||
3d13ef2e | 10732 | if (INTEL_INFO(dev)->gen >= 6) |
b29c19b6 | 10733 | gen6_rps_idle(dev->dev_private); |
bb4cdd53 | 10734 | |
43694d69 | 10735 | intel_runtime_pm_put(dev_priv); |
652c393a JB |
10736 | } |
10737 | ||
79e53945 JB |
10738 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
10739 | { | |
10740 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
10741 | struct drm_device *dev = crtc->dev; |
10742 | struct intel_unpin_work *work; | |
67e77c5a | 10743 | |
5e2d7afc | 10744 | spin_lock_irq(&dev->event_lock); |
67e77c5a DV |
10745 | work = intel_crtc->unpin_work; |
10746 | intel_crtc->unpin_work = NULL; | |
5e2d7afc | 10747 | spin_unlock_irq(&dev->event_lock); |
67e77c5a DV |
10748 | |
10749 | if (work) { | |
10750 | cancel_work_sync(&work->work); | |
10751 | kfree(work); | |
10752 | } | |
79e53945 JB |
10753 | |
10754 | drm_crtc_cleanup(crtc); | |
67e77c5a | 10755 | |
79e53945 JB |
10756 | kfree(intel_crtc); |
10757 | } | |
10758 | ||
6b95a207 KH |
10759 | static void intel_unpin_work_fn(struct work_struct *__work) |
10760 | { | |
10761 | struct intel_unpin_work *work = | |
10762 | container_of(__work, struct intel_unpin_work, work); | |
a9ff8714 VS |
10763 | struct intel_crtc *crtc = to_intel_crtc(work->crtc); |
10764 | struct drm_device *dev = crtc->base.dev; | |
7733b49b | 10765 | struct drm_i915_private *dev_priv = dev->dev_private; |
a9ff8714 | 10766 | struct drm_plane *primary = crtc->base.primary; |
6b95a207 | 10767 | |
b4a98e57 | 10768 | mutex_lock(&dev->struct_mutex); |
a9ff8714 | 10769 | intel_unpin_fb_obj(work->old_fb, primary->state); |
05394f39 | 10770 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
d9e86c0e | 10771 | |
7733b49b | 10772 | intel_fbc_update(dev_priv); |
f06cc1b9 JH |
10773 | |
10774 | if (work->flip_queued_req) | |
146d84f0 | 10775 | i915_gem_request_assign(&work->flip_queued_req, NULL); |
b4a98e57 CW |
10776 | mutex_unlock(&dev->struct_mutex); |
10777 | ||
a9ff8714 | 10778 | intel_frontbuffer_flip_complete(dev, to_intel_plane(primary)->frontbuffer_bit); |
89ed88ba | 10779 | drm_framebuffer_unreference(work->old_fb); |
f99d7069 | 10780 | |
a9ff8714 VS |
10781 | BUG_ON(atomic_read(&crtc->unpin_work_count) == 0); |
10782 | atomic_dec(&crtc->unpin_work_count); | |
b4a98e57 | 10783 | |
6b95a207 KH |
10784 | kfree(work); |
10785 | } | |
10786 | ||
1afe3e9d | 10787 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 10788 | struct drm_crtc *crtc) |
6b95a207 | 10789 | { |
6b95a207 KH |
10790 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
10791 | struct intel_unpin_work *work; | |
6b95a207 KH |
10792 | unsigned long flags; |
10793 | ||
10794 | /* Ignore early vblank irqs */ | |
10795 | if (intel_crtc == NULL) | |
10796 | return; | |
10797 | ||
f326038a DV |
10798 | /* |
10799 | * This is called both by irq handlers and the reset code (to complete | |
10800 | * lost pageflips) so needs the full irqsave spinlocks. | |
10801 | */ | |
6b95a207 KH |
10802 | spin_lock_irqsave(&dev->event_lock, flags); |
10803 | work = intel_crtc->unpin_work; | |
e7d841ca CW |
10804 | |
10805 | /* Ensure we don't miss a work->pending update ... */ | |
10806 | smp_rmb(); | |
10807 | ||
10808 | if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) { | |
6b95a207 KH |
10809 | spin_unlock_irqrestore(&dev->event_lock, flags); |
10810 | return; | |
10811 | } | |
10812 | ||
d6bbafa1 | 10813 | page_flip_completed(intel_crtc); |
0af7e4df | 10814 | |
6b95a207 | 10815 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6b95a207 KH |
10816 | } |
10817 | ||
1afe3e9d JB |
10818 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
10819 | { | |
fbee40df | 10820 | struct drm_i915_private *dev_priv = dev->dev_private; |
1afe3e9d JB |
10821 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
10822 | ||
49b14a5c | 10823 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
10824 | } |
10825 | ||
10826 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
10827 | { | |
fbee40df | 10828 | struct drm_i915_private *dev_priv = dev->dev_private; |
1afe3e9d JB |
10829 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; |
10830 | ||
49b14a5c | 10831 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
10832 | } |
10833 | ||
75f7f3ec VS |
10834 | /* Is 'a' after or equal to 'b'? */ |
10835 | static bool g4x_flip_count_after_eq(u32 a, u32 b) | |
10836 | { | |
10837 | return !((a - b) & 0x80000000); | |
10838 | } | |
10839 | ||
10840 | static bool page_flip_finished(struct intel_crtc *crtc) | |
10841 | { | |
10842 | struct drm_device *dev = crtc->base.dev; | |
10843 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10844 | ||
bdfa7542 VS |
10845 | if (i915_reset_in_progress(&dev_priv->gpu_error) || |
10846 | crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) | |
10847 | return true; | |
10848 | ||
75f7f3ec VS |
10849 | /* |
10850 | * The relevant registers doen't exist on pre-ctg. | |
10851 | * As the flip done interrupt doesn't trigger for mmio | |
10852 | * flips on gmch platforms, a flip count check isn't | |
10853 | * really needed there. But since ctg has the registers, | |
10854 | * include it in the check anyway. | |
10855 | */ | |
10856 | if (INTEL_INFO(dev)->gen < 5 && !IS_G4X(dev)) | |
10857 | return true; | |
10858 | ||
10859 | /* | |
10860 | * A DSPSURFLIVE check isn't enough in case the mmio and CS flips | |
10861 | * used the same base address. In that case the mmio flip might | |
10862 | * have completed, but the CS hasn't even executed the flip yet. | |
10863 | * | |
10864 | * A flip count check isn't enough as the CS might have updated | |
10865 | * the base address just after start of vblank, but before we | |
10866 | * managed to process the interrupt. This means we'd complete the | |
10867 | * CS flip too soon. | |
10868 | * | |
10869 | * Combining both checks should get us a good enough result. It may | |
10870 | * still happen that the CS flip has been executed, but has not | |
10871 | * yet actually completed. But in case the base address is the same | |
10872 | * anyway, we don't really care. | |
10873 | */ | |
10874 | return (I915_READ(DSPSURFLIVE(crtc->plane)) & ~0xfff) == | |
10875 | crtc->unpin_work->gtt_offset && | |
10876 | g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc->pipe)), | |
10877 | crtc->unpin_work->flip_count); | |
10878 | } | |
10879 | ||
6b95a207 KH |
10880 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
10881 | { | |
fbee40df | 10882 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
10883 | struct intel_crtc *intel_crtc = |
10884 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
10885 | unsigned long flags; | |
10886 | ||
f326038a DV |
10887 | |
10888 | /* | |
10889 | * This is called both by irq handlers and the reset code (to complete | |
10890 | * lost pageflips) so needs the full irqsave spinlocks. | |
10891 | * | |
10892 | * NB: An MMIO update of the plane base pointer will also | |
e7d841ca CW |
10893 | * generate a page-flip completion irq, i.e. every modeset |
10894 | * is also accompanied by a spurious intel_prepare_page_flip(). | |
10895 | */ | |
6b95a207 | 10896 | spin_lock_irqsave(&dev->event_lock, flags); |
75f7f3ec | 10897 | if (intel_crtc->unpin_work && page_flip_finished(intel_crtc)) |
e7d841ca | 10898 | atomic_inc_not_zero(&intel_crtc->unpin_work->pending); |
6b95a207 KH |
10899 | spin_unlock_irqrestore(&dev->event_lock, flags); |
10900 | } | |
10901 | ||
eba905b2 | 10902 | static inline void intel_mark_page_flip_active(struct intel_crtc *intel_crtc) |
e7d841ca CW |
10903 | { |
10904 | /* Ensure that the work item is consistent when activating it ... */ | |
10905 | smp_wmb(); | |
10906 | atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING); | |
10907 | /* and that it is marked active as soon as the irq could fire. */ | |
10908 | smp_wmb(); | |
10909 | } | |
10910 | ||
8c9f3aaf JB |
10911 | static int intel_gen2_queue_flip(struct drm_device *dev, |
10912 | struct drm_crtc *crtc, | |
10913 | struct drm_framebuffer *fb, | |
ed8d1975 | 10914 | struct drm_i915_gem_object *obj, |
6258fbe2 | 10915 | struct drm_i915_gem_request *req, |
ed8d1975 | 10916 | uint32_t flags) |
8c9f3aaf | 10917 | { |
6258fbe2 | 10918 | struct intel_engine_cs *ring = req->ring; |
8c9f3aaf | 10919 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8c9f3aaf JB |
10920 | u32 flip_mask; |
10921 | int ret; | |
10922 | ||
5fb9de1a | 10923 | ret = intel_ring_begin(req, 6); |
8c9f3aaf | 10924 | if (ret) |
4fa62c89 | 10925 | return ret; |
8c9f3aaf JB |
10926 | |
10927 | /* Can't queue multiple flips, so wait for the previous | |
10928 | * one to finish before executing the next. | |
10929 | */ | |
10930 | if (intel_crtc->plane) | |
10931 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
10932 | else | |
10933 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
10934 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
10935 | intel_ring_emit(ring, MI_NOOP); | |
10936 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
10937 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
10938 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 10939 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
6d90c952 | 10940 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
e7d841ca CW |
10941 | |
10942 | intel_mark_page_flip_active(intel_crtc); | |
83d4092b | 10943 | return 0; |
8c9f3aaf JB |
10944 | } |
10945 | ||
10946 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
10947 | struct drm_crtc *crtc, | |
10948 | struct drm_framebuffer *fb, | |
ed8d1975 | 10949 | struct drm_i915_gem_object *obj, |
6258fbe2 | 10950 | struct drm_i915_gem_request *req, |
ed8d1975 | 10951 | uint32_t flags) |
8c9f3aaf | 10952 | { |
6258fbe2 | 10953 | struct intel_engine_cs *ring = req->ring; |
8c9f3aaf | 10954 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8c9f3aaf JB |
10955 | u32 flip_mask; |
10956 | int ret; | |
10957 | ||
5fb9de1a | 10958 | ret = intel_ring_begin(req, 6); |
8c9f3aaf | 10959 | if (ret) |
4fa62c89 | 10960 | return ret; |
8c9f3aaf JB |
10961 | |
10962 | if (intel_crtc->plane) | |
10963 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
10964 | else | |
10965 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
10966 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
10967 | intel_ring_emit(ring, MI_NOOP); | |
10968 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
10969 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
10970 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 10971 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
6d90c952 DV |
10972 | intel_ring_emit(ring, MI_NOOP); |
10973 | ||
e7d841ca | 10974 | intel_mark_page_flip_active(intel_crtc); |
83d4092b | 10975 | return 0; |
8c9f3aaf JB |
10976 | } |
10977 | ||
10978 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
10979 | struct drm_crtc *crtc, | |
10980 | struct drm_framebuffer *fb, | |
ed8d1975 | 10981 | struct drm_i915_gem_object *obj, |
6258fbe2 | 10982 | struct drm_i915_gem_request *req, |
ed8d1975 | 10983 | uint32_t flags) |
8c9f3aaf | 10984 | { |
6258fbe2 | 10985 | struct intel_engine_cs *ring = req->ring; |
8c9f3aaf JB |
10986 | struct drm_i915_private *dev_priv = dev->dev_private; |
10987 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
10988 | uint32_t pf, pipesrc; | |
10989 | int ret; | |
10990 | ||
5fb9de1a | 10991 | ret = intel_ring_begin(req, 4); |
8c9f3aaf | 10992 | if (ret) |
4fa62c89 | 10993 | return ret; |
8c9f3aaf JB |
10994 | |
10995 | /* i965+ uses the linear or tiled offsets from the | |
10996 | * Display Registers (which do not change across a page-flip) | |
10997 | * so we need only reprogram the base address. | |
10998 | */ | |
6d90c952 DV |
10999 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
11000 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
11001 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 11002 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset | |
c2c75131 | 11003 | obj->tiling_mode); |
8c9f3aaf JB |
11004 | |
11005 | /* XXX Enabling the panel-fitter across page-flip is so far | |
11006 | * untested on non-native modes, so ignore it for now. | |
11007 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
11008 | */ | |
11009 | pf = 0; | |
11010 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 | 11011 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca CW |
11012 | |
11013 | intel_mark_page_flip_active(intel_crtc); | |
83d4092b | 11014 | return 0; |
8c9f3aaf JB |
11015 | } |
11016 | ||
11017 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
11018 | struct drm_crtc *crtc, | |
11019 | struct drm_framebuffer *fb, | |
ed8d1975 | 11020 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11021 | struct drm_i915_gem_request *req, |
ed8d1975 | 11022 | uint32_t flags) |
8c9f3aaf | 11023 | { |
6258fbe2 | 11024 | struct intel_engine_cs *ring = req->ring; |
8c9f3aaf JB |
11025 | struct drm_i915_private *dev_priv = dev->dev_private; |
11026 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11027 | uint32_t pf, pipesrc; | |
11028 | int ret; | |
11029 | ||
5fb9de1a | 11030 | ret = intel_ring_begin(req, 4); |
8c9f3aaf | 11031 | if (ret) |
4fa62c89 | 11032 | return ret; |
8c9f3aaf | 11033 | |
6d90c952 DV |
11034 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
11035 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
11036 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
75f7f3ec | 11037 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
8c9f3aaf | 11038 | |
dc257cf1 DV |
11039 | /* Contrary to the suggestions in the documentation, |
11040 | * "Enable Panel Fitter" does not seem to be required when page | |
11041 | * flipping with a non-native mode, and worse causes a normal | |
11042 | * modeset to fail. | |
11043 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
11044 | */ | |
11045 | pf = 0; | |
8c9f3aaf | 11046 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 | 11047 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca CW |
11048 | |
11049 | intel_mark_page_flip_active(intel_crtc); | |
83d4092b | 11050 | return 0; |
8c9f3aaf JB |
11051 | } |
11052 | ||
7c9017e5 JB |
11053 | static int intel_gen7_queue_flip(struct drm_device *dev, |
11054 | struct drm_crtc *crtc, | |
11055 | struct drm_framebuffer *fb, | |
ed8d1975 | 11056 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11057 | struct drm_i915_gem_request *req, |
ed8d1975 | 11058 | uint32_t flags) |
7c9017e5 | 11059 | { |
6258fbe2 | 11060 | struct intel_engine_cs *ring = req->ring; |
7c9017e5 | 11061 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
cb05d8de | 11062 | uint32_t plane_bit = 0; |
ffe74d75 CW |
11063 | int len, ret; |
11064 | ||
eba905b2 | 11065 | switch (intel_crtc->plane) { |
cb05d8de DV |
11066 | case PLANE_A: |
11067 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
11068 | break; | |
11069 | case PLANE_B: | |
11070 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
11071 | break; | |
11072 | case PLANE_C: | |
11073 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
11074 | break; | |
11075 | default: | |
11076 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
4fa62c89 | 11077 | return -ENODEV; |
cb05d8de DV |
11078 | } |
11079 | ||
ffe74d75 | 11080 | len = 4; |
f476828a | 11081 | if (ring->id == RCS) { |
ffe74d75 | 11082 | len += 6; |
f476828a DL |
11083 | /* |
11084 | * On Gen 8, SRM is now taking an extra dword to accommodate | |
11085 | * 48bits addresses, and we need a NOOP for the batch size to | |
11086 | * stay even. | |
11087 | */ | |
11088 | if (IS_GEN8(dev)) | |
11089 | len += 2; | |
11090 | } | |
ffe74d75 | 11091 | |
f66fab8e VS |
11092 | /* |
11093 | * BSpec MI_DISPLAY_FLIP for IVB: | |
11094 | * "The full packet must be contained within the same cache line." | |
11095 | * | |
11096 | * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same | |
11097 | * cacheline, if we ever start emitting more commands before | |
11098 | * the MI_DISPLAY_FLIP we may need to first emit everything else, | |
11099 | * then do the cacheline alignment, and finally emit the | |
11100 | * MI_DISPLAY_FLIP. | |
11101 | */ | |
bba09b12 | 11102 | ret = intel_ring_cacheline_align(req); |
f66fab8e | 11103 | if (ret) |
4fa62c89 | 11104 | return ret; |
f66fab8e | 11105 | |
5fb9de1a | 11106 | ret = intel_ring_begin(req, len); |
7c9017e5 | 11107 | if (ret) |
4fa62c89 | 11108 | return ret; |
7c9017e5 | 11109 | |
ffe74d75 CW |
11110 | /* Unmask the flip-done completion message. Note that the bspec says that |
11111 | * we should do this for both the BCS and RCS, and that we must not unmask | |
11112 | * more than one flip event at any time (or ensure that one flip message | |
11113 | * can be sent by waiting for flip-done prior to queueing new flips). | |
11114 | * Experimentation says that BCS works despite DERRMR masking all | |
11115 | * flip-done completion events and that unmasking all planes at once | |
11116 | * for the RCS also doesn't appear to drop events. Setting the DERRMR | |
11117 | * to zero does lead to lockups within MI_DISPLAY_FLIP. | |
11118 | */ | |
11119 | if (ring->id == RCS) { | |
11120 | intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); | |
11121 | intel_ring_emit(ring, DERRMR); | |
11122 | intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE | | |
11123 | DERRMR_PIPEB_PRI_FLIP_DONE | | |
11124 | DERRMR_PIPEC_PRI_FLIP_DONE)); | |
f476828a DL |
11125 | if (IS_GEN8(dev)) |
11126 | intel_ring_emit(ring, MI_STORE_REGISTER_MEM_GEN8(1) | | |
11127 | MI_SRM_LRM_GLOBAL_GTT); | |
11128 | else | |
11129 | intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1) | | |
11130 | MI_SRM_LRM_GLOBAL_GTT); | |
ffe74d75 CW |
11131 | intel_ring_emit(ring, DERRMR); |
11132 | intel_ring_emit(ring, ring->scratch.gtt_offset + 256); | |
f476828a DL |
11133 | if (IS_GEN8(dev)) { |
11134 | intel_ring_emit(ring, 0); | |
11135 | intel_ring_emit(ring, MI_NOOP); | |
11136 | } | |
ffe74d75 CW |
11137 | } |
11138 | ||
cb05d8de | 11139 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 11140 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
75f7f3ec | 11141 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
7c9017e5 | 11142 | intel_ring_emit(ring, (MI_NOOP)); |
e7d841ca CW |
11143 | |
11144 | intel_mark_page_flip_active(intel_crtc); | |
83d4092b | 11145 | return 0; |
7c9017e5 JB |
11146 | } |
11147 | ||
84c33a64 SG |
11148 | static bool use_mmio_flip(struct intel_engine_cs *ring, |
11149 | struct drm_i915_gem_object *obj) | |
11150 | { | |
11151 | /* | |
11152 | * This is not being used for older platforms, because | |
11153 | * non-availability of flip done interrupt forces us to use | |
11154 | * CS flips. Older platforms derive flip done using some clever | |
11155 | * tricks involving the flip_pending status bits and vblank irqs. | |
11156 | * So using MMIO flips there would disrupt this mechanism. | |
11157 | */ | |
11158 | ||
8e09bf83 CW |
11159 | if (ring == NULL) |
11160 | return true; | |
11161 | ||
84c33a64 SG |
11162 | if (INTEL_INFO(ring->dev)->gen < 5) |
11163 | return false; | |
11164 | ||
11165 | if (i915.use_mmio_flip < 0) | |
11166 | return false; | |
11167 | else if (i915.use_mmio_flip > 0) | |
11168 | return true; | |
14bf993e OM |
11169 | else if (i915.enable_execlists) |
11170 | return true; | |
84c33a64 | 11171 | else |
b4716185 | 11172 | return ring != i915_gem_request_get_ring(obj->last_write_req); |
84c33a64 SG |
11173 | } |
11174 | ||
ff944564 DL |
11175 | static void skl_do_mmio_flip(struct intel_crtc *intel_crtc) |
11176 | { | |
11177 | struct drm_device *dev = intel_crtc->base.dev; | |
11178 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11179 | struct drm_framebuffer *fb = intel_crtc->base.primary->fb; | |
ff944564 DL |
11180 | const enum pipe pipe = intel_crtc->pipe; |
11181 | u32 ctl, stride; | |
11182 | ||
11183 | ctl = I915_READ(PLANE_CTL(pipe, 0)); | |
11184 | ctl &= ~PLANE_CTL_TILED_MASK; | |
2ebef630 TU |
11185 | switch (fb->modifier[0]) { |
11186 | case DRM_FORMAT_MOD_NONE: | |
11187 | break; | |
11188 | case I915_FORMAT_MOD_X_TILED: | |
ff944564 | 11189 | ctl |= PLANE_CTL_TILED_X; |
2ebef630 TU |
11190 | break; |
11191 | case I915_FORMAT_MOD_Y_TILED: | |
11192 | ctl |= PLANE_CTL_TILED_Y; | |
11193 | break; | |
11194 | case I915_FORMAT_MOD_Yf_TILED: | |
11195 | ctl |= PLANE_CTL_TILED_YF; | |
11196 | break; | |
11197 | default: | |
11198 | MISSING_CASE(fb->modifier[0]); | |
11199 | } | |
ff944564 DL |
11200 | |
11201 | /* | |
11202 | * The stride is either expressed as a multiple of 64 bytes chunks for | |
11203 | * linear buffers or in number of tiles for tiled buffers. | |
11204 | */ | |
2ebef630 TU |
11205 | stride = fb->pitches[0] / |
11206 | intel_fb_stride_alignment(dev, fb->modifier[0], | |
11207 | fb->pixel_format); | |
ff944564 DL |
11208 | |
11209 | /* | |
11210 | * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on | |
11211 | * PLANE_SURF updates, the update is then guaranteed to be atomic. | |
11212 | */ | |
11213 | I915_WRITE(PLANE_CTL(pipe, 0), ctl); | |
11214 | I915_WRITE(PLANE_STRIDE(pipe, 0), stride); | |
11215 | ||
11216 | I915_WRITE(PLANE_SURF(pipe, 0), intel_crtc->unpin_work->gtt_offset); | |
11217 | POSTING_READ(PLANE_SURF(pipe, 0)); | |
11218 | } | |
11219 | ||
11220 | static void ilk_do_mmio_flip(struct intel_crtc *intel_crtc) | |
84c33a64 SG |
11221 | { |
11222 | struct drm_device *dev = intel_crtc->base.dev; | |
11223 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11224 | struct intel_framebuffer *intel_fb = | |
11225 | to_intel_framebuffer(intel_crtc->base.primary->fb); | |
11226 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
11227 | u32 dspcntr; | |
11228 | u32 reg; | |
11229 | ||
84c33a64 SG |
11230 | reg = DSPCNTR(intel_crtc->plane); |
11231 | dspcntr = I915_READ(reg); | |
11232 | ||
c5d97472 DL |
11233 | if (obj->tiling_mode != I915_TILING_NONE) |
11234 | dspcntr |= DISPPLANE_TILED; | |
11235 | else | |
11236 | dspcntr &= ~DISPPLANE_TILED; | |
11237 | ||
84c33a64 SG |
11238 | I915_WRITE(reg, dspcntr); |
11239 | ||
11240 | I915_WRITE(DSPSURF(intel_crtc->plane), | |
11241 | intel_crtc->unpin_work->gtt_offset); | |
11242 | POSTING_READ(DSPSURF(intel_crtc->plane)); | |
84c33a64 | 11243 | |
ff944564 DL |
11244 | } |
11245 | ||
11246 | /* | |
11247 | * XXX: This is the temporary way to update the plane registers until we get | |
11248 | * around to using the usual plane update functions for MMIO flips | |
11249 | */ | |
11250 | static void intel_do_mmio_flip(struct intel_crtc *intel_crtc) | |
11251 | { | |
11252 | struct drm_device *dev = intel_crtc->base.dev; | |
11253 | bool atomic_update; | |
11254 | u32 start_vbl_count; | |
11255 | ||
11256 | intel_mark_page_flip_active(intel_crtc); | |
11257 | ||
11258 | atomic_update = intel_pipe_update_start(intel_crtc, &start_vbl_count); | |
11259 | ||
11260 | if (INTEL_INFO(dev)->gen >= 9) | |
11261 | skl_do_mmio_flip(intel_crtc); | |
11262 | else | |
11263 | /* use_mmio_flip() retricts MMIO flips to ilk+ */ | |
11264 | ilk_do_mmio_flip(intel_crtc); | |
11265 | ||
9362c7c5 ACO |
11266 | if (atomic_update) |
11267 | intel_pipe_update_end(intel_crtc, start_vbl_count); | |
84c33a64 SG |
11268 | } |
11269 | ||
9362c7c5 | 11270 | static void intel_mmio_flip_work_func(struct work_struct *work) |
84c33a64 | 11271 | { |
b2cfe0ab CW |
11272 | struct intel_mmio_flip *mmio_flip = |
11273 | container_of(work, struct intel_mmio_flip, work); | |
84c33a64 | 11274 | |
eed29a5b DV |
11275 | if (mmio_flip->req) |
11276 | WARN_ON(__i915_wait_request(mmio_flip->req, | |
b2cfe0ab | 11277 | mmio_flip->crtc->reset_counter, |
bcafc4e3 CW |
11278 | false, NULL, |
11279 | &mmio_flip->i915->rps.mmioflips)); | |
84c33a64 | 11280 | |
b2cfe0ab CW |
11281 | intel_do_mmio_flip(mmio_flip->crtc); |
11282 | ||
eed29a5b | 11283 | i915_gem_request_unreference__unlocked(mmio_flip->req); |
b2cfe0ab | 11284 | kfree(mmio_flip); |
84c33a64 SG |
11285 | } |
11286 | ||
11287 | static int intel_queue_mmio_flip(struct drm_device *dev, | |
11288 | struct drm_crtc *crtc, | |
11289 | struct drm_framebuffer *fb, | |
11290 | struct drm_i915_gem_object *obj, | |
11291 | struct intel_engine_cs *ring, | |
11292 | uint32_t flags) | |
11293 | { | |
b2cfe0ab CW |
11294 | struct intel_mmio_flip *mmio_flip; |
11295 | ||
11296 | mmio_flip = kmalloc(sizeof(*mmio_flip), GFP_KERNEL); | |
11297 | if (mmio_flip == NULL) | |
11298 | return -ENOMEM; | |
84c33a64 | 11299 | |
bcafc4e3 | 11300 | mmio_flip->i915 = to_i915(dev); |
eed29a5b | 11301 | mmio_flip->req = i915_gem_request_reference(obj->last_write_req); |
b2cfe0ab | 11302 | mmio_flip->crtc = to_intel_crtc(crtc); |
536f5b5e | 11303 | |
b2cfe0ab CW |
11304 | INIT_WORK(&mmio_flip->work, intel_mmio_flip_work_func); |
11305 | schedule_work(&mmio_flip->work); | |
84c33a64 | 11306 | |
84c33a64 SG |
11307 | return 0; |
11308 | } | |
11309 | ||
8c9f3aaf JB |
11310 | static int intel_default_queue_flip(struct drm_device *dev, |
11311 | struct drm_crtc *crtc, | |
11312 | struct drm_framebuffer *fb, | |
ed8d1975 | 11313 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11314 | struct drm_i915_gem_request *req, |
ed8d1975 | 11315 | uint32_t flags) |
8c9f3aaf JB |
11316 | { |
11317 | return -ENODEV; | |
11318 | } | |
11319 | ||
d6bbafa1 CW |
11320 | static bool __intel_pageflip_stall_check(struct drm_device *dev, |
11321 | struct drm_crtc *crtc) | |
11322 | { | |
11323 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11324 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11325 | struct intel_unpin_work *work = intel_crtc->unpin_work; | |
11326 | u32 addr; | |
11327 | ||
11328 | if (atomic_read(&work->pending) >= INTEL_FLIP_COMPLETE) | |
11329 | return true; | |
11330 | ||
11331 | if (!work->enable_stall_check) | |
11332 | return false; | |
11333 | ||
11334 | if (work->flip_ready_vblank == 0) { | |
3a8a946e DV |
11335 | if (work->flip_queued_req && |
11336 | !i915_gem_request_completed(work->flip_queued_req, true)) | |
d6bbafa1 CW |
11337 | return false; |
11338 | ||
1e3feefd | 11339 | work->flip_ready_vblank = drm_crtc_vblank_count(crtc); |
d6bbafa1 CW |
11340 | } |
11341 | ||
1e3feefd | 11342 | if (drm_crtc_vblank_count(crtc) - work->flip_ready_vblank < 3) |
d6bbafa1 CW |
11343 | return false; |
11344 | ||
11345 | /* Potential stall - if we see that the flip has happened, | |
11346 | * assume a missed interrupt. */ | |
11347 | if (INTEL_INFO(dev)->gen >= 4) | |
11348 | addr = I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc->plane))); | |
11349 | else | |
11350 | addr = I915_READ(DSPADDR(intel_crtc->plane)); | |
11351 | ||
11352 | /* There is a potential issue here with a false positive after a flip | |
11353 | * to the same address. We could address this by checking for a | |
11354 | * non-incrementing frame counter. | |
11355 | */ | |
11356 | return addr == work->gtt_offset; | |
11357 | } | |
11358 | ||
11359 | void intel_check_page_flip(struct drm_device *dev, int pipe) | |
11360 | { | |
11361 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11362 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
11363 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6ad790c0 | 11364 | struct intel_unpin_work *work; |
f326038a | 11365 | |
6c51d46f | 11366 | WARN_ON(!in_interrupt()); |
d6bbafa1 CW |
11367 | |
11368 | if (crtc == NULL) | |
11369 | return; | |
11370 | ||
f326038a | 11371 | spin_lock(&dev->event_lock); |
6ad790c0 CW |
11372 | work = intel_crtc->unpin_work; |
11373 | if (work != NULL && __intel_pageflip_stall_check(dev, crtc)) { | |
d6bbafa1 | 11374 | WARN_ONCE(1, "Kicking stuck page flip: queued at %d, now %d\n", |
6ad790c0 | 11375 | work->flip_queued_vblank, drm_vblank_count(dev, pipe)); |
d6bbafa1 | 11376 | page_flip_completed(intel_crtc); |
6ad790c0 | 11377 | work = NULL; |
d6bbafa1 | 11378 | } |
6ad790c0 CW |
11379 | if (work != NULL && |
11380 | drm_vblank_count(dev, pipe) - work->flip_queued_vblank > 1) | |
11381 | intel_queue_rps_boost_for_request(dev, work->flip_queued_req); | |
f326038a | 11382 | spin_unlock(&dev->event_lock); |
d6bbafa1 CW |
11383 | } |
11384 | ||
6b95a207 KH |
11385 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
11386 | struct drm_framebuffer *fb, | |
ed8d1975 KP |
11387 | struct drm_pending_vblank_event *event, |
11388 | uint32_t page_flip_flags) | |
6b95a207 KH |
11389 | { |
11390 | struct drm_device *dev = crtc->dev; | |
11391 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f4510a27 | 11392 | struct drm_framebuffer *old_fb = crtc->primary->fb; |
2ff8fde1 | 11393 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
6b95a207 | 11394 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
455a6808 | 11395 | struct drm_plane *primary = crtc->primary; |
a071fa00 | 11396 | enum pipe pipe = intel_crtc->pipe; |
6b95a207 | 11397 | struct intel_unpin_work *work; |
a4872ba6 | 11398 | struct intel_engine_cs *ring; |
cf5d8a46 | 11399 | bool mmio_flip; |
91af127f | 11400 | struct drm_i915_gem_request *request = NULL; |
52e68630 | 11401 | int ret; |
6b95a207 | 11402 | |
2ff8fde1 MR |
11403 | /* |
11404 | * drm_mode_page_flip_ioctl() should already catch this, but double | |
11405 | * check to be safe. In the future we may enable pageflipping from | |
11406 | * a disabled primary plane. | |
11407 | */ | |
11408 | if (WARN_ON(intel_fb_obj(old_fb) == NULL)) | |
11409 | return -EBUSY; | |
11410 | ||
e6a595d2 | 11411 | /* Can't change pixel format via MI display flips. */ |
f4510a27 | 11412 | if (fb->pixel_format != crtc->primary->fb->pixel_format) |
e6a595d2 VS |
11413 | return -EINVAL; |
11414 | ||
11415 | /* | |
11416 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
11417 | * Note that pitch changes could also affect these register. | |
11418 | */ | |
11419 | if (INTEL_INFO(dev)->gen > 3 && | |
f4510a27 MR |
11420 | (fb->offsets[0] != crtc->primary->fb->offsets[0] || |
11421 | fb->pitches[0] != crtc->primary->fb->pitches[0])) | |
e6a595d2 VS |
11422 | return -EINVAL; |
11423 | ||
f900db47 CW |
11424 | if (i915_terminally_wedged(&dev_priv->gpu_error)) |
11425 | goto out_hang; | |
11426 | ||
b14c5679 | 11427 | work = kzalloc(sizeof(*work), GFP_KERNEL); |
6b95a207 KH |
11428 | if (work == NULL) |
11429 | return -ENOMEM; | |
11430 | ||
6b95a207 | 11431 | work->event = event; |
b4a98e57 | 11432 | work->crtc = crtc; |
ab8d6675 | 11433 | work->old_fb = old_fb; |
6b95a207 KH |
11434 | INIT_WORK(&work->work, intel_unpin_work_fn); |
11435 | ||
87b6b101 | 11436 | ret = drm_crtc_vblank_get(crtc); |
7317c75e JB |
11437 | if (ret) |
11438 | goto free_work; | |
11439 | ||
6b95a207 | 11440 | /* We borrow the event spin lock for protecting unpin_work */ |
5e2d7afc | 11441 | spin_lock_irq(&dev->event_lock); |
6b95a207 | 11442 | if (intel_crtc->unpin_work) { |
d6bbafa1 CW |
11443 | /* Before declaring the flip queue wedged, check if |
11444 | * the hardware completed the operation behind our backs. | |
11445 | */ | |
11446 | if (__intel_pageflip_stall_check(dev, crtc)) { | |
11447 | DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n"); | |
11448 | page_flip_completed(intel_crtc); | |
11449 | } else { | |
11450 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
5e2d7afc | 11451 | spin_unlock_irq(&dev->event_lock); |
468f0b44 | 11452 | |
d6bbafa1 CW |
11453 | drm_crtc_vblank_put(crtc); |
11454 | kfree(work); | |
11455 | return -EBUSY; | |
11456 | } | |
6b95a207 KH |
11457 | } |
11458 | intel_crtc->unpin_work = work; | |
5e2d7afc | 11459 | spin_unlock_irq(&dev->event_lock); |
6b95a207 | 11460 | |
b4a98e57 CW |
11461 | if (atomic_read(&intel_crtc->unpin_work_count) >= 2) |
11462 | flush_workqueue(dev_priv->wq); | |
11463 | ||
75dfca80 | 11464 | /* Reference the objects for the scheduled work. */ |
ab8d6675 | 11465 | drm_framebuffer_reference(work->old_fb); |
05394f39 | 11466 | drm_gem_object_reference(&obj->base); |
6b95a207 | 11467 | |
f4510a27 | 11468 | crtc->primary->fb = fb; |
afd65eb4 | 11469 | update_state_fb(crtc->primary); |
1ed1f968 | 11470 | |
e1f99ce6 | 11471 | work->pending_flip_obj = obj; |
e1f99ce6 | 11472 | |
89ed88ba CW |
11473 | ret = i915_mutex_lock_interruptible(dev); |
11474 | if (ret) | |
11475 | goto cleanup; | |
11476 | ||
b4a98e57 | 11477 | atomic_inc(&intel_crtc->unpin_work_count); |
10d83730 | 11478 | intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
e1f99ce6 | 11479 | |
75f7f3ec | 11480 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) |
a071fa00 | 11481 | work->flip_count = I915_READ(PIPE_FLIPCOUNT_GM45(pipe)) + 1; |
75f7f3ec | 11482 | |
4fa62c89 VS |
11483 | if (IS_VALLEYVIEW(dev)) { |
11484 | ring = &dev_priv->ring[BCS]; | |
ab8d6675 | 11485 | if (obj->tiling_mode != intel_fb_obj(work->old_fb)->tiling_mode) |
8e09bf83 CW |
11486 | /* vlv: DISPLAY_FLIP fails to change tiling */ |
11487 | ring = NULL; | |
48bf5b2d | 11488 | } else if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
2a92d5bc | 11489 | ring = &dev_priv->ring[BCS]; |
4fa62c89 | 11490 | } else if (INTEL_INFO(dev)->gen >= 7) { |
b4716185 | 11491 | ring = i915_gem_request_get_ring(obj->last_write_req); |
4fa62c89 VS |
11492 | if (ring == NULL || ring->id != RCS) |
11493 | ring = &dev_priv->ring[BCS]; | |
11494 | } else { | |
11495 | ring = &dev_priv->ring[RCS]; | |
11496 | } | |
11497 | ||
cf5d8a46 CW |
11498 | mmio_flip = use_mmio_flip(ring, obj); |
11499 | ||
11500 | /* When using CS flips, we want to emit semaphores between rings. | |
11501 | * However, when using mmio flips we will create a task to do the | |
11502 | * synchronisation, so all we want here is to pin the framebuffer | |
11503 | * into the display plane and skip any waits. | |
11504 | */ | |
82bc3b2d | 11505 | ret = intel_pin_and_fence_fb_obj(crtc->primary, fb, |
cf5d8a46 | 11506 | crtc->primary->state, |
91af127f | 11507 | mmio_flip ? i915_gem_request_get_ring(obj->last_write_req) : ring, &request); |
8c9f3aaf JB |
11508 | if (ret) |
11509 | goto cleanup_pending; | |
6b95a207 | 11510 | |
121920fa TU |
11511 | work->gtt_offset = intel_plane_obj_offset(to_intel_plane(primary), obj) |
11512 | + intel_crtc->dspaddr_offset; | |
4fa62c89 | 11513 | |
cf5d8a46 | 11514 | if (mmio_flip) { |
84c33a64 SG |
11515 | ret = intel_queue_mmio_flip(dev, crtc, fb, obj, ring, |
11516 | page_flip_flags); | |
d6bbafa1 CW |
11517 | if (ret) |
11518 | goto cleanup_unpin; | |
11519 | ||
f06cc1b9 JH |
11520 | i915_gem_request_assign(&work->flip_queued_req, |
11521 | obj->last_write_req); | |
d6bbafa1 | 11522 | } else { |
6258fbe2 JH |
11523 | if (!request) { |
11524 | ret = i915_gem_request_alloc(ring, ring->default_context, &request); | |
11525 | if (ret) | |
11526 | goto cleanup_unpin; | |
11527 | } | |
11528 | ||
11529 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, request, | |
d6bbafa1 CW |
11530 | page_flip_flags); |
11531 | if (ret) | |
11532 | goto cleanup_unpin; | |
11533 | ||
6258fbe2 | 11534 | i915_gem_request_assign(&work->flip_queued_req, request); |
d6bbafa1 CW |
11535 | } |
11536 | ||
91af127f | 11537 | if (request) |
75289874 | 11538 | i915_add_request_no_flush(request); |
91af127f | 11539 | |
1e3feefd | 11540 | work->flip_queued_vblank = drm_crtc_vblank_count(crtc); |
d6bbafa1 | 11541 | work->enable_stall_check = true; |
4fa62c89 | 11542 | |
ab8d6675 | 11543 | i915_gem_track_fb(intel_fb_obj(work->old_fb), obj, |
a9ff8714 | 11544 | to_intel_plane(primary)->frontbuffer_bit); |
c80ac854 | 11545 | mutex_unlock(&dev->struct_mutex); |
a071fa00 | 11546 | |
7733b49b | 11547 | intel_fbc_disable(dev_priv); |
a9ff8714 VS |
11548 | intel_frontbuffer_flip_prepare(dev, |
11549 | to_intel_plane(primary)->frontbuffer_bit); | |
6b95a207 | 11550 | |
e5510fac JB |
11551 | trace_i915_flip_request(intel_crtc->plane, obj); |
11552 | ||
6b95a207 | 11553 | return 0; |
96b099fd | 11554 | |
4fa62c89 | 11555 | cleanup_unpin: |
82bc3b2d | 11556 | intel_unpin_fb_obj(fb, crtc->primary->state); |
8c9f3aaf | 11557 | cleanup_pending: |
91af127f JH |
11558 | if (request) |
11559 | i915_gem_request_cancel(request); | |
b4a98e57 | 11560 | atomic_dec(&intel_crtc->unpin_work_count); |
89ed88ba CW |
11561 | mutex_unlock(&dev->struct_mutex); |
11562 | cleanup: | |
f4510a27 | 11563 | crtc->primary->fb = old_fb; |
afd65eb4 | 11564 | update_state_fb(crtc->primary); |
89ed88ba CW |
11565 | |
11566 | drm_gem_object_unreference_unlocked(&obj->base); | |
ab8d6675 | 11567 | drm_framebuffer_unreference(work->old_fb); |
96b099fd | 11568 | |
5e2d7afc | 11569 | spin_lock_irq(&dev->event_lock); |
96b099fd | 11570 | intel_crtc->unpin_work = NULL; |
5e2d7afc | 11571 | spin_unlock_irq(&dev->event_lock); |
96b099fd | 11572 | |
87b6b101 | 11573 | drm_crtc_vblank_put(crtc); |
7317c75e | 11574 | free_work: |
96b099fd CW |
11575 | kfree(work); |
11576 | ||
f900db47 | 11577 | if (ret == -EIO) { |
02e0efb5 ML |
11578 | struct drm_atomic_state *state; |
11579 | struct drm_plane_state *plane_state; | |
11580 | ||
f900db47 | 11581 | out_hang: |
02e0efb5 ML |
11582 | state = drm_atomic_state_alloc(dev); |
11583 | if (!state) | |
11584 | return -ENOMEM; | |
11585 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); | |
11586 | ||
11587 | retry: | |
11588 | plane_state = drm_atomic_get_plane_state(state, primary); | |
11589 | ret = PTR_ERR_OR_ZERO(plane_state); | |
11590 | if (!ret) { | |
11591 | drm_atomic_set_fb_for_plane(plane_state, fb); | |
11592 | ||
11593 | ret = drm_atomic_set_crtc_for_plane(plane_state, crtc); | |
11594 | if (!ret) | |
11595 | ret = drm_atomic_commit(state); | |
11596 | } | |
11597 | ||
11598 | if (ret == -EDEADLK) { | |
11599 | drm_modeset_backoff(state->acquire_ctx); | |
11600 | drm_atomic_state_clear(state); | |
11601 | goto retry; | |
11602 | } | |
11603 | ||
11604 | if (ret) | |
11605 | drm_atomic_state_free(state); | |
11606 | ||
f0d3dad3 | 11607 | if (ret == 0 && event) { |
5e2d7afc | 11608 | spin_lock_irq(&dev->event_lock); |
a071fa00 | 11609 | drm_send_vblank_event(dev, pipe, event); |
5e2d7afc | 11610 | spin_unlock_irq(&dev->event_lock); |
f0d3dad3 | 11611 | } |
f900db47 | 11612 | } |
96b099fd | 11613 | return ret; |
6b95a207 KH |
11614 | } |
11615 | ||
da20eabd ML |
11616 | |
11617 | /** | |
11618 | * intel_wm_need_update - Check whether watermarks need updating | |
11619 | * @plane: drm plane | |
11620 | * @state: new plane state | |
11621 | * | |
11622 | * Check current plane state versus the new one to determine whether | |
11623 | * watermarks need to be recalculated. | |
11624 | * | |
11625 | * Returns true or false. | |
11626 | */ | |
11627 | static bool intel_wm_need_update(struct drm_plane *plane, | |
11628 | struct drm_plane_state *state) | |
11629 | { | |
11630 | /* Update watermarks on tiling changes. */ | |
11631 | if (!plane->state->fb || !state->fb || | |
11632 | plane->state->fb->modifier[0] != state->fb->modifier[0] || | |
11633 | plane->state->rotation != state->rotation) | |
11634 | return true; | |
11635 | ||
11636 | if (plane->state->crtc_w != state->crtc_w) | |
11637 | return true; | |
11638 | ||
11639 | return false; | |
11640 | } | |
11641 | ||
11642 | int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state, | |
11643 | struct drm_plane_state *plane_state) | |
11644 | { | |
11645 | struct drm_crtc *crtc = crtc_state->crtc; | |
11646 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11647 | struct drm_plane *plane = plane_state->plane; | |
11648 | struct drm_device *dev = crtc->dev; | |
11649 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11650 | struct intel_plane_state *old_plane_state = | |
11651 | to_intel_plane_state(plane->state); | |
11652 | int idx = intel_crtc->base.base.id, ret; | |
11653 | int i = drm_plane_index(plane); | |
11654 | bool mode_changed = needs_modeset(crtc_state); | |
11655 | bool was_crtc_enabled = crtc->state->active; | |
11656 | bool is_crtc_enabled = crtc_state->active; | |
11657 | ||
11658 | bool turn_off, turn_on, visible, was_visible; | |
11659 | struct drm_framebuffer *fb = plane_state->fb; | |
11660 | ||
11661 | if (crtc_state && INTEL_INFO(dev)->gen >= 9 && | |
11662 | plane->type != DRM_PLANE_TYPE_CURSOR) { | |
11663 | ret = skl_update_scaler_plane( | |
11664 | to_intel_crtc_state(crtc_state), | |
11665 | to_intel_plane_state(plane_state)); | |
11666 | if (ret) | |
11667 | return ret; | |
11668 | } | |
11669 | ||
11670 | /* | |
11671 | * Disabling a plane is always okay; we just need to update | |
11672 | * fb tracking in a special way since cleanup_fb() won't | |
11673 | * get called by the plane helpers. | |
11674 | */ | |
11675 | if (old_plane_state->base.fb && !fb) | |
11676 | intel_crtc->atomic.disabled_planes |= 1 << i; | |
11677 | ||
da20eabd ML |
11678 | was_visible = old_plane_state->visible; |
11679 | visible = to_intel_plane_state(plane_state)->visible; | |
11680 | ||
11681 | if (!was_crtc_enabled && WARN_ON(was_visible)) | |
11682 | was_visible = false; | |
11683 | ||
11684 | if (!is_crtc_enabled && WARN_ON(visible)) | |
11685 | visible = false; | |
11686 | ||
11687 | if (!was_visible && !visible) | |
11688 | return 0; | |
11689 | ||
11690 | turn_off = was_visible && (!visible || mode_changed); | |
11691 | turn_on = visible && (!was_visible || mode_changed); | |
11692 | ||
11693 | DRM_DEBUG_ATOMIC("[CRTC:%i] has [PLANE:%i] with fb %i\n", idx, | |
11694 | plane->base.id, fb ? fb->base.id : -1); | |
11695 | ||
11696 | DRM_DEBUG_ATOMIC("[PLANE:%i] visible %i -> %i, off %i, on %i, ms %i\n", | |
11697 | plane->base.id, was_visible, visible, | |
11698 | turn_off, turn_on, mode_changed); | |
11699 | ||
852eb00d | 11700 | if (turn_on) { |
f015c551 | 11701 | intel_crtc->atomic.update_wm_pre = true; |
852eb00d VS |
11702 | /* must disable cxsr around plane enable/disable */ |
11703 | if (plane->type != DRM_PLANE_TYPE_CURSOR) { | |
11704 | intel_crtc->atomic.disable_cxsr = true; | |
11705 | /* to potentially re-enable cxsr */ | |
11706 | intel_crtc->atomic.wait_vblank = true; | |
11707 | intel_crtc->atomic.update_wm_post = true; | |
11708 | } | |
11709 | } else if (turn_off) { | |
f015c551 | 11710 | intel_crtc->atomic.update_wm_post = true; |
852eb00d VS |
11711 | /* must disable cxsr around plane enable/disable */ |
11712 | if (plane->type != DRM_PLANE_TYPE_CURSOR) { | |
11713 | if (is_crtc_enabled) | |
11714 | intel_crtc->atomic.wait_vblank = true; | |
11715 | intel_crtc->atomic.disable_cxsr = true; | |
11716 | } | |
11717 | } else if (intel_wm_need_update(plane, plane_state)) { | |
f015c551 | 11718 | intel_crtc->atomic.update_wm_pre = true; |
852eb00d | 11719 | } |
da20eabd | 11720 | |
a9ff8714 VS |
11721 | if (visible) |
11722 | intel_crtc->atomic.fb_bits |= | |
11723 | to_intel_plane(plane)->frontbuffer_bit; | |
11724 | ||
da20eabd ML |
11725 | switch (plane->type) { |
11726 | case DRM_PLANE_TYPE_PRIMARY: | |
da20eabd ML |
11727 | intel_crtc->atomic.wait_for_flips = true; |
11728 | intel_crtc->atomic.pre_disable_primary = turn_off; | |
11729 | intel_crtc->atomic.post_enable_primary = turn_on; | |
11730 | ||
066cf55b RV |
11731 | if (turn_off) { |
11732 | /* | |
11733 | * FIXME: Actually if we will still have any other | |
11734 | * plane enabled on the pipe we could let IPS enabled | |
11735 | * still, but for now lets consider that when we make | |
11736 | * primary invisible by setting DSPCNTR to 0 on | |
11737 | * update_primary_plane function IPS needs to be | |
11738 | * disable. | |
11739 | */ | |
11740 | intel_crtc->atomic.disable_ips = true; | |
11741 | ||
da20eabd | 11742 | intel_crtc->atomic.disable_fbc = true; |
066cf55b | 11743 | } |
da20eabd ML |
11744 | |
11745 | /* | |
11746 | * FBC does not work on some platforms for rotated | |
11747 | * planes, so disable it when rotation is not 0 and | |
11748 | * update it when rotation is set back to 0. | |
11749 | * | |
11750 | * FIXME: This is redundant with the fbc update done in | |
11751 | * the primary plane enable function except that that | |
11752 | * one is done too late. We eventually need to unify | |
11753 | * this. | |
11754 | */ | |
11755 | ||
11756 | if (visible && | |
11757 | INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev) && | |
11758 | dev_priv->fbc.crtc == intel_crtc && | |
11759 | plane_state->rotation != BIT(DRM_ROTATE_0)) | |
11760 | intel_crtc->atomic.disable_fbc = true; | |
11761 | ||
11762 | /* | |
11763 | * BDW signals flip done immediately if the plane | |
11764 | * is disabled, even if the plane enable is already | |
11765 | * armed to occur at the next vblank :( | |
11766 | */ | |
11767 | if (turn_on && IS_BROADWELL(dev)) | |
11768 | intel_crtc->atomic.wait_vblank = true; | |
11769 | ||
11770 | intel_crtc->atomic.update_fbc |= visible || mode_changed; | |
11771 | break; | |
11772 | case DRM_PLANE_TYPE_CURSOR: | |
da20eabd ML |
11773 | break; |
11774 | case DRM_PLANE_TYPE_OVERLAY: | |
d032ffa0 | 11775 | if (turn_off && !mode_changed) { |
da20eabd ML |
11776 | intel_crtc->atomic.wait_vblank = true; |
11777 | intel_crtc->atomic.update_sprite_watermarks |= | |
11778 | 1 << i; | |
11779 | } | |
da20eabd ML |
11780 | } |
11781 | return 0; | |
11782 | } | |
11783 | ||
6d3a1ce7 ML |
11784 | static bool encoders_cloneable(const struct intel_encoder *a, |
11785 | const struct intel_encoder *b) | |
11786 | { | |
11787 | /* masks could be asymmetric, so check both ways */ | |
11788 | return a == b || (a->cloneable & (1 << b->type) && | |
11789 | b->cloneable & (1 << a->type)); | |
11790 | } | |
11791 | ||
11792 | static bool check_single_encoder_cloning(struct drm_atomic_state *state, | |
11793 | struct intel_crtc *crtc, | |
11794 | struct intel_encoder *encoder) | |
11795 | { | |
11796 | struct intel_encoder *source_encoder; | |
11797 | struct drm_connector *connector; | |
11798 | struct drm_connector_state *connector_state; | |
11799 | int i; | |
11800 | ||
11801 | for_each_connector_in_state(state, connector, connector_state, i) { | |
11802 | if (connector_state->crtc != &crtc->base) | |
11803 | continue; | |
11804 | ||
11805 | source_encoder = | |
11806 | to_intel_encoder(connector_state->best_encoder); | |
11807 | if (!encoders_cloneable(encoder, source_encoder)) | |
11808 | return false; | |
11809 | } | |
11810 | ||
11811 | return true; | |
11812 | } | |
11813 | ||
11814 | static bool check_encoder_cloning(struct drm_atomic_state *state, | |
11815 | struct intel_crtc *crtc) | |
11816 | { | |
11817 | struct intel_encoder *encoder; | |
11818 | struct drm_connector *connector; | |
11819 | struct drm_connector_state *connector_state; | |
11820 | int i; | |
11821 | ||
11822 | for_each_connector_in_state(state, connector, connector_state, i) { | |
11823 | if (connector_state->crtc != &crtc->base) | |
11824 | continue; | |
11825 | ||
11826 | encoder = to_intel_encoder(connector_state->best_encoder); | |
11827 | if (!check_single_encoder_cloning(state, crtc, encoder)) | |
11828 | return false; | |
11829 | } | |
11830 | ||
11831 | return true; | |
11832 | } | |
11833 | ||
11834 | static int intel_crtc_atomic_check(struct drm_crtc *crtc, | |
11835 | struct drm_crtc_state *crtc_state) | |
11836 | { | |
cf5a15be | 11837 | struct drm_device *dev = crtc->dev; |
ad421372 | 11838 | struct drm_i915_private *dev_priv = dev->dev_private; |
6d3a1ce7 | 11839 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
cf5a15be ML |
11840 | struct intel_crtc_state *pipe_config = |
11841 | to_intel_crtc_state(crtc_state); | |
6d3a1ce7 | 11842 | struct drm_atomic_state *state = crtc_state->state; |
ad421372 | 11843 | int ret, idx = crtc->base.id; |
6d3a1ce7 ML |
11844 | bool mode_changed = needs_modeset(crtc_state); |
11845 | ||
11846 | if (mode_changed && !check_encoder_cloning(state, intel_crtc)) { | |
11847 | DRM_DEBUG_KMS("rejecting invalid cloning configuration\n"); | |
11848 | return -EINVAL; | |
11849 | } | |
11850 | ||
11851 | I915_STATE_WARN(crtc->state->active != intel_crtc->active, | |
11852 | "[CRTC:%i] mismatch between state->active(%i) and crtc->active(%i)\n", | |
11853 | idx, crtc->state->active, intel_crtc->active); | |
11854 | ||
852eb00d VS |
11855 | if (mode_changed && !crtc_state->active) |
11856 | intel_crtc->atomic.update_wm_post = true; | |
eddfcbcd | 11857 | |
ad421372 ML |
11858 | if (mode_changed && crtc_state->enable && |
11859 | dev_priv->display.crtc_compute_clock && | |
11860 | !WARN_ON(pipe_config->shared_dpll != DPLL_ID_PRIVATE)) { | |
11861 | ret = dev_priv->display.crtc_compute_clock(intel_crtc, | |
11862 | pipe_config); | |
11863 | if (ret) | |
11864 | return ret; | |
11865 | } | |
11866 | ||
e435d6e5 ML |
11867 | ret = 0; |
11868 | if (INTEL_INFO(dev)->gen >= 9) { | |
11869 | if (mode_changed) | |
11870 | ret = skl_update_scaler_crtc(pipe_config); | |
11871 | ||
11872 | if (!ret) | |
11873 | ret = intel_atomic_setup_scalers(dev, intel_crtc, | |
11874 | pipe_config); | |
11875 | } | |
11876 | ||
11877 | return ret; | |
6d3a1ce7 ML |
11878 | } |
11879 | ||
65b38e0d | 11880 | static const struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 CW |
11881 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
11882 | .load_lut = intel_crtc_load_lut, | |
ea2c67bb MR |
11883 | .atomic_begin = intel_begin_crtc_commit, |
11884 | .atomic_flush = intel_finish_crtc_commit, | |
6d3a1ce7 | 11885 | .atomic_check = intel_crtc_atomic_check, |
f6e5b160 CW |
11886 | }; |
11887 | ||
d29b2f9d ACO |
11888 | static void intel_modeset_update_connector_atomic_state(struct drm_device *dev) |
11889 | { | |
11890 | struct intel_connector *connector; | |
11891 | ||
11892 | for_each_intel_connector(dev, connector) { | |
11893 | if (connector->base.encoder) { | |
11894 | connector->base.state->best_encoder = | |
11895 | connector->base.encoder; | |
11896 | connector->base.state->crtc = | |
11897 | connector->base.encoder->crtc; | |
11898 | } else { | |
11899 | connector->base.state->best_encoder = NULL; | |
11900 | connector->base.state->crtc = NULL; | |
11901 | } | |
11902 | } | |
11903 | } | |
11904 | ||
050f7aeb | 11905 | static void |
eba905b2 | 11906 | connected_sink_compute_bpp(struct intel_connector *connector, |
5cec258b | 11907 | struct intel_crtc_state *pipe_config) |
050f7aeb DV |
11908 | { |
11909 | int bpp = pipe_config->pipe_bpp; | |
11910 | ||
11911 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n", | |
11912 | connector->base.base.id, | |
c23cc417 | 11913 | connector->base.name); |
050f7aeb DV |
11914 | |
11915 | /* Don't use an invalid EDID bpc value */ | |
11916 | if (connector->base.display_info.bpc && | |
11917 | connector->base.display_info.bpc * 3 < bpp) { | |
11918 | DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n", | |
11919 | bpp, connector->base.display_info.bpc*3); | |
11920 | pipe_config->pipe_bpp = connector->base.display_info.bpc*3; | |
11921 | } | |
11922 | ||
11923 | /* Clamp bpp to 8 on screens without EDID 1.4 */ | |
11924 | if (connector->base.display_info.bpc == 0 && bpp > 24) { | |
11925 | DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n", | |
11926 | bpp); | |
11927 | pipe_config->pipe_bpp = 24; | |
11928 | } | |
11929 | } | |
11930 | ||
4e53c2e0 | 11931 | static int |
050f7aeb | 11932 | compute_baseline_pipe_bpp(struct intel_crtc *crtc, |
5cec258b | 11933 | struct intel_crtc_state *pipe_config) |
4e53c2e0 | 11934 | { |
050f7aeb | 11935 | struct drm_device *dev = crtc->base.dev; |
1486017f | 11936 | struct drm_atomic_state *state; |
da3ced29 ACO |
11937 | struct drm_connector *connector; |
11938 | struct drm_connector_state *connector_state; | |
1486017f | 11939 | int bpp, i; |
4e53c2e0 | 11940 | |
d328c9d7 | 11941 | if ((IS_G4X(dev) || IS_VALLEYVIEW(dev))) |
4e53c2e0 | 11942 | bpp = 10*3; |
d328c9d7 DV |
11943 | else if (INTEL_INFO(dev)->gen >= 5) |
11944 | bpp = 12*3; | |
11945 | else | |
11946 | bpp = 8*3; | |
11947 | ||
4e53c2e0 | 11948 | |
4e53c2e0 DV |
11949 | pipe_config->pipe_bpp = bpp; |
11950 | ||
1486017f ACO |
11951 | state = pipe_config->base.state; |
11952 | ||
4e53c2e0 | 11953 | /* Clamp display bpp to EDID value */ |
da3ced29 ACO |
11954 | for_each_connector_in_state(state, connector, connector_state, i) { |
11955 | if (connector_state->crtc != &crtc->base) | |
4e53c2e0 DV |
11956 | continue; |
11957 | ||
da3ced29 ACO |
11958 | connected_sink_compute_bpp(to_intel_connector(connector), |
11959 | pipe_config); | |
4e53c2e0 DV |
11960 | } |
11961 | ||
11962 | return bpp; | |
11963 | } | |
11964 | ||
644db711 DV |
11965 | static void intel_dump_crtc_timings(const struct drm_display_mode *mode) |
11966 | { | |
11967 | DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, " | |
11968 | "type: 0x%x flags: 0x%x\n", | |
1342830c | 11969 | mode->crtc_clock, |
644db711 DV |
11970 | mode->crtc_hdisplay, mode->crtc_hsync_start, |
11971 | mode->crtc_hsync_end, mode->crtc_htotal, | |
11972 | mode->crtc_vdisplay, mode->crtc_vsync_start, | |
11973 | mode->crtc_vsync_end, mode->crtc_vtotal, mode->type, mode->flags); | |
11974 | } | |
11975 | ||
c0b03411 | 11976 | static void intel_dump_pipe_config(struct intel_crtc *crtc, |
5cec258b | 11977 | struct intel_crtc_state *pipe_config, |
c0b03411 DV |
11978 | const char *context) |
11979 | { | |
6a60cd87 CK |
11980 | struct drm_device *dev = crtc->base.dev; |
11981 | struct drm_plane *plane; | |
11982 | struct intel_plane *intel_plane; | |
11983 | struct intel_plane_state *state; | |
11984 | struct drm_framebuffer *fb; | |
11985 | ||
11986 | DRM_DEBUG_KMS("[CRTC:%d]%s config %p for pipe %c\n", crtc->base.base.id, | |
11987 | context, pipe_config, pipe_name(crtc->pipe)); | |
c0b03411 DV |
11988 | |
11989 | DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder)); | |
11990 | DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n", | |
11991 | pipe_config->pipe_bpp, pipe_config->dither); | |
11992 | DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", | |
11993 | pipe_config->has_pch_encoder, | |
11994 | pipe_config->fdi_lanes, | |
11995 | pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n, | |
11996 | pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n, | |
11997 | pipe_config->fdi_m_n.tu); | |
eb14cb74 VS |
11998 | DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", |
11999 | pipe_config->has_dp_encoder, | |
12000 | pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n, | |
12001 | pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n, | |
12002 | pipe_config->dp_m_n.tu); | |
b95af8be VK |
12003 | |
12004 | DRM_DEBUG_KMS("dp: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n", | |
12005 | pipe_config->has_dp_encoder, | |
12006 | pipe_config->dp_m2_n2.gmch_m, | |
12007 | pipe_config->dp_m2_n2.gmch_n, | |
12008 | pipe_config->dp_m2_n2.link_m, | |
12009 | pipe_config->dp_m2_n2.link_n, | |
12010 | pipe_config->dp_m2_n2.tu); | |
12011 | ||
55072d19 DV |
12012 | DRM_DEBUG_KMS("audio: %i, infoframes: %i\n", |
12013 | pipe_config->has_audio, | |
12014 | pipe_config->has_infoframe); | |
12015 | ||
c0b03411 | 12016 | DRM_DEBUG_KMS("requested mode:\n"); |
2d112de7 | 12017 | drm_mode_debug_printmodeline(&pipe_config->base.mode); |
c0b03411 | 12018 | DRM_DEBUG_KMS("adjusted mode:\n"); |
2d112de7 ACO |
12019 | drm_mode_debug_printmodeline(&pipe_config->base.adjusted_mode); |
12020 | intel_dump_crtc_timings(&pipe_config->base.adjusted_mode); | |
d71b8d4a | 12021 | DRM_DEBUG_KMS("port clock: %d\n", pipe_config->port_clock); |
37327abd VS |
12022 | DRM_DEBUG_KMS("pipe src size: %dx%d\n", |
12023 | pipe_config->pipe_src_w, pipe_config->pipe_src_h); | |
0ec463d3 TU |
12024 | DRM_DEBUG_KMS("num_scalers: %d, scaler_users: 0x%x, scaler_id: %d\n", |
12025 | crtc->num_scalers, | |
12026 | pipe_config->scaler_state.scaler_users, | |
12027 | pipe_config->scaler_state.scaler_id); | |
c0b03411 DV |
12028 | DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n", |
12029 | pipe_config->gmch_pfit.control, | |
12030 | pipe_config->gmch_pfit.pgm_ratios, | |
12031 | pipe_config->gmch_pfit.lvds_border_bits); | |
fd4daa9c | 12032 | DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n", |
c0b03411 | 12033 | pipe_config->pch_pfit.pos, |
fd4daa9c CW |
12034 | pipe_config->pch_pfit.size, |
12035 | pipe_config->pch_pfit.enabled ? "enabled" : "disabled"); | |
42db64ef | 12036 | DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled); |
cf532bb2 | 12037 | DRM_DEBUG_KMS("double wide: %i\n", pipe_config->double_wide); |
6a60cd87 | 12038 | |
415ff0f6 | 12039 | if (IS_BROXTON(dev)) { |
05712c15 | 12040 | DRM_DEBUG_KMS("ddi_pll_sel: %u; dpll_hw_state: ebb0: 0x%x, ebb4: 0x%x," |
415ff0f6 | 12041 | "pll0: 0x%x, pll1: 0x%x, pll2: 0x%x, pll3: 0x%x, " |
c8453338 | 12042 | "pll6: 0x%x, pll8: 0x%x, pll9: 0x%x, pll10: 0x%x, pcsdw12: 0x%x\n", |
415ff0f6 TU |
12043 | pipe_config->ddi_pll_sel, |
12044 | pipe_config->dpll_hw_state.ebb0, | |
05712c15 | 12045 | pipe_config->dpll_hw_state.ebb4, |
415ff0f6 TU |
12046 | pipe_config->dpll_hw_state.pll0, |
12047 | pipe_config->dpll_hw_state.pll1, | |
12048 | pipe_config->dpll_hw_state.pll2, | |
12049 | pipe_config->dpll_hw_state.pll3, | |
12050 | pipe_config->dpll_hw_state.pll6, | |
12051 | pipe_config->dpll_hw_state.pll8, | |
05712c15 | 12052 | pipe_config->dpll_hw_state.pll9, |
c8453338 | 12053 | pipe_config->dpll_hw_state.pll10, |
415ff0f6 TU |
12054 | pipe_config->dpll_hw_state.pcsdw12); |
12055 | } else if (IS_SKYLAKE(dev)) { | |
12056 | DRM_DEBUG_KMS("ddi_pll_sel: %u; dpll_hw_state: " | |
12057 | "ctrl1: 0x%x, cfgcr1: 0x%x, cfgcr2: 0x%x\n", | |
12058 | pipe_config->ddi_pll_sel, | |
12059 | pipe_config->dpll_hw_state.ctrl1, | |
12060 | pipe_config->dpll_hw_state.cfgcr1, | |
12061 | pipe_config->dpll_hw_state.cfgcr2); | |
12062 | } else if (HAS_DDI(dev)) { | |
12063 | DRM_DEBUG_KMS("ddi_pll_sel: %u; dpll_hw_state: wrpll: 0x%x\n", | |
12064 | pipe_config->ddi_pll_sel, | |
12065 | pipe_config->dpll_hw_state.wrpll); | |
12066 | } else { | |
12067 | DRM_DEBUG_KMS("dpll_hw_state: dpll: 0x%x, dpll_md: 0x%x, " | |
12068 | "fp0: 0x%x, fp1: 0x%x\n", | |
12069 | pipe_config->dpll_hw_state.dpll, | |
12070 | pipe_config->dpll_hw_state.dpll_md, | |
12071 | pipe_config->dpll_hw_state.fp0, | |
12072 | pipe_config->dpll_hw_state.fp1); | |
12073 | } | |
12074 | ||
6a60cd87 CK |
12075 | DRM_DEBUG_KMS("planes on this crtc\n"); |
12076 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { | |
12077 | intel_plane = to_intel_plane(plane); | |
12078 | if (intel_plane->pipe != crtc->pipe) | |
12079 | continue; | |
12080 | ||
12081 | state = to_intel_plane_state(plane->state); | |
12082 | fb = state->base.fb; | |
12083 | if (!fb) { | |
12084 | DRM_DEBUG_KMS("%s PLANE:%d plane: %u.%u idx: %d " | |
12085 | "disabled, scaler_id = %d\n", | |
12086 | plane->type == DRM_PLANE_TYPE_CURSOR ? "CURSOR" : "STANDARD", | |
12087 | plane->base.id, intel_plane->pipe, | |
12088 | (crtc->base.primary == plane) ? 0 : intel_plane->plane + 1, | |
12089 | drm_plane_index(plane), state->scaler_id); | |
12090 | continue; | |
12091 | } | |
12092 | ||
12093 | DRM_DEBUG_KMS("%s PLANE:%d plane: %u.%u idx: %d enabled", | |
12094 | plane->type == DRM_PLANE_TYPE_CURSOR ? "CURSOR" : "STANDARD", | |
12095 | plane->base.id, intel_plane->pipe, | |
12096 | crtc->base.primary == plane ? 0 : intel_plane->plane + 1, | |
12097 | drm_plane_index(plane)); | |
12098 | DRM_DEBUG_KMS("\tFB:%d, fb = %ux%u format = 0x%x", | |
12099 | fb->base.id, fb->width, fb->height, fb->pixel_format); | |
12100 | DRM_DEBUG_KMS("\tscaler:%d src (%u, %u) %ux%u dst (%u, %u) %ux%u\n", | |
12101 | state->scaler_id, | |
12102 | state->src.x1 >> 16, state->src.y1 >> 16, | |
12103 | drm_rect_width(&state->src) >> 16, | |
12104 | drm_rect_height(&state->src) >> 16, | |
12105 | state->dst.x1, state->dst.y1, | |
12106 | drm_rect_width(&state->dst), drm_rect_height(&state->dst)); | |
12107 | } | |
c0b03411 DV |
12108 | } |
12109 | ||
5448a00d | 12110 | static bool check_digital_port_conflicts(struct drm_atomic_state *state) |
00f0b378 | 12111 | { |
5448a00d ACO |
12112 | struct drm_device *dev = state->dev; |
12113 | struct intel_encoder *encoder; | |
da3ced29 | 12114 | struct drm_connector *connector; |
5448a00d | 12115 | struct drm_connector_state *connector_state; |
00f0b378 | 12116 | unsigned int used_ports = 0; |
5448a00d | 12117 | int i; |
00f0b378 VS |
12118 | |
12119 | /* | |
12120 | * Walk the connector list instead of the encoder | |
12121 | * list to detect the problem on ddi platforms | |
12122 | * where there's just one encoder per digital port. | |
12123 | */ | |
da3ced29 | 12124 | for_each_connector_in_state(state, connector, connector_state, i) { |
5448a00d | 12125 | if (!connector_state->best_encoder) |
00f0b378 VS |
12126 | continue; |
12127 | ||
5448a00d ACO |
12128 | encoder = to_intel_encoder(connector_state->best_encoder); |
12129 | ||
12130 | WARN_ON(!connector_state->crtc); | |
00f0b378 VS |
12131 | |
12132 | switch (encoder->type) { | |
12133 | unsigned int port_mask; | |
12134 | case INTEL_OUTPUT_UNKNOWN: | |
12135 | if (WARN_ON(!HAS_DDI(dev))) | |
12136 | break; | |
12137 | case INTEL_OUTPUT_DISPLAYPORT: | |
12138 | case INTEL_OUTPUT_HDMI: | |
12139 | case INTEL_OUTPUT_EDP: | |
12140 | port_mask = 1 << enc_to_dig_port(&encoder->base)->port; | |
12141 | ||
12142 | /* the same port mustn't appear more than once */ | |
12143 | if (used_ports & port_mask) | |
12144 | return false; | |
12145 | ||
12146 | used_ports |= port_mask; | |
12147 | default: | |
12148 | break; | |
12149 | } | |
12150 | } | |
12151 | ||
12152 | return true; | |
12153 | } | |
12154 | ||
83a57153 ACO |
12155 | static void |
12156 | clear_intel_crtc_state(struct intel_crtc_state *crtc_state) | |
12157 | { | |
12158 | struct drm_crtc_state tmp_state; | |
663a3640 | 12159 | struct intel_crtc_scaler_state scaler_state; |
4978cc93 ACO |
12160 | struct intel_dpll_hw_state dpll_hw_state; |
12161 | enum intel_dpll_id shared_dpll; | |
8504c74c | 12162 | uint32_t ddi_pll_sel; |
83a57153 | 12163 | |
7546a384 ACO |
12164 | /* FIXME: before the switch to atomic started, a new pipe_config was |
12165 | * kzalloc'd. Code that depends on any field being zero should be | |
12166 | * fixed, so that the crtc_state can be safely duplicated. For now, | |
12167 | * only fields that are know to not cause problems are preserved. */ | |
12168 | ||
83a57153 | 12169 | tmp_state = crtc_state->base; |
663a3640 | 12170 | scaler_state = crtc_state->scaler_state; |
4978cc93 ACO |
12171 | shared_dpll = crtc_state->shared_dpll; |
12172 | dpll_hw_state = crtc_state->dpll_hw_state; | |
8504c74c | 12173 | ddi_pll_sel = crtc_state->ddi_pll_sel; |
4978cc93 | 12174 | |
83a57153 | 12175 | memset(crtc_state, 0, sizeof *crtc_state); |
4978cc93 | 12176 | |
83a57153 | 12177 | crtc_state->base = tmp_state; |
663a3640 | 12178 | crtc_state->scaler_state = scaler_state; |
4978cc93 ACO |
12179 | crtc_state->shared_dpll = shared_dpll; |
12180 | crtc_state->dpll_hw_state = dpll_hw_state; | |
8504c74c | 12181 | crtc_state->ddi_pll_sel = ddi_pll_sel; |
83a57153 ACO |
12182 | } |
12183 | ||
548ee15b | 12184 | static int |
b8cecdf5 | 12185 | intel_modeset_pipe_config(struct drm_crtc *crtc, |
b359283a | 12186 | struct intel_crtc_state *pipe_config) |
ee7b9f93 | 12187 | { |
b359283a | 12188 | struct drm_atomic_state *state = pipe_config->base.state; |
7758a113 | 12189 | struct intel_encoder *encoder; |
da3ced29 | 12190 | struct drm_connector *connector; |
0b901879 | 12191 | struct drm_connector_state *connector_state; |
d328c9d7 | 12192 | int base_bpp, ret = -EINVAL; |
0b901879 | 12193 | int i; |
e29c22c0 | 12194 | bool retry = true; |
ee7b9f93 | 12195 | |
83a57153 | 12196 | clear_intel_crtc_state(pipe_config); |
7758a113 | 12197 | |
e143a21c DV |
12198 | pipe_config->cpu_transcoder = |
12199 | (enum transcoder) to_intel_crtc(crtc)->pipe; | |
b8cecdf5 | 12200 | |
2960bc9c ID |
12201 | /* |
12202 | * Sanitize sync polarity flags based on requested ones. If neither | |
12203 | * positive or negative polarity is requested, treat this as meaning | |
12204 | * negative polarity. | |
12205 | */ | |
2d112de7 | 12206 | if (!(pipe_config->base.adjusted_mode.flags & |
2960bc9c | 12207 | (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC))) |
2d112de7 | 12208 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC; |
2960bc9c | 12209 | |
2d112de7 | 12210 | if (!(pipe_config->base.adjusted_mode.flags & |
2960bc9c | 12211 | (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC))) |
2d112de7 | 12212 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC; |
2960bc9c | 12213 | |
050f7aeb DV |
12214 | /* Compute a starting value for pipe_config->pipe_bpp taking the source |
12215 | * plane pixel format and any sink constraints into account. Returns the | |
12216 | * source plane bpp so that dithering can be selected on mismatches | |
12217 | * after encoders and crtc also have had their say. */ | |
d328c9d7 DV |
12218 | base_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc), |
12219 | pipe_config); | |
12220 | if (base_bpp < 0) | |
4e53c2e0 DV |
12221 | goto fail; |
12222 | ||
e41a56be VS |
12223 | /* |
12224 | * Determine the real pipe dimensions. Note that stereo modes can | |
12225 | * increase the actual pipe size due to the frame doubling and | |
12226 | * insertion of additional space for blanks between the frame. This | |
12227 | * is stored in the crtc timings. We use the requested mode to do this | |
12228 | * computation to clearly distinguish it from the adjusted mode, which | |
12229 | * can be changed by the connectors in the below retry loop. | |
12230 | */ | |
2d112de7 | 12231 | drm_crtc_get_hv_timing(&pipe_config->base.mode, |
ecb7e16b GP |
12232 | &pipe_config->pipe_src_w, |
12233 | &pipe_config->pipe_src_h); | |
e41a56be | 12234 | |
e29c22c0 | 12235 | encoder_retry: |
ef1b460d | 12236 | /* Ensure the port clock defaults are reset when retrying. */ |
ff9a6750 | 12237 | pipe_config->port_clock = 0; |
ef1b460d | 12238 | pipe_config->pixel_multiplier = 1; |
ff9a6750 | 12239 | |
135c81b8 | 12240 | /* Fill in default crtc timings, allow encoders to overwrite them. */ |
2d112de7 ACO |
12241 | drm_mode_set_crtcinfo(&pipe_config->base.adjusted_mode, |
12242 | CRTC_STEREO_DOUBLE); | |
135c81b8 | 12243 | |
7758a113 DV |
12244 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
12245 | * adjust it according to limitations or connector properties, and also | |
12246 | * a chance to reject the mode entirely. | |
47f1c6c9 | 12247 | */ |
da3ced29 | 12248 | for_each_connector_in_state(state, connector, connector_state, i) { |
0b901879 | 12249 | if (connector_state->crtc != crtc) |
7758a113 | 12250 | continue; |
7ae89233 | 12251 | |
0b901879 ACO |
12252 | encoder = to_intel_encoder(connector_state->best_encoder); |
12253 | ||
efea6e8e DV |
12254 | if (!(encoder->compute_config(encoder, pipe_config))) { |
12255 | DRM_DEBUG_KMS("Encoder config failure\n"); | |
7758a113 DV |
12256 | goto fail; |
12257 | } | |
ee7b9f93 | 12258 | } |
47f1c6c9 | 12259 | |
ff9a6750 DV |
12260 | /* Set default port clock if not overwritten by the encoder. Needs to be |
12261 | * done afterwards in case the encoder adjusts the mode. */ | |
12262 | if (!pipe_config->port_clock) | |
2d112de7 | 12263 | pipe_config->port_clock = pipe_config->base.adjusted_mode.crtc_clock |
241bfc38 | 12264 | * pipe_config->pixel_multiplier; |
ff9a6750 | 12265 | |
a43f6e0f | 12266 | ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config); |
e29c22c0 | 12267 | if (ret < 0) { |
7758a113 DV |
12268 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
12269 | goto fail; | |
ee7b9f93 | 12270 | } |
e29c22c0 DV |
12271 | |
12272 | if (ret == RETRY) { | |
12273 | if (WARN(!retry, "loop in pipe configuration computation\n")) { | |
12274 | ret = -EINVAL; | |
12275 | goto fail; | |
12276 | } | |
12277 | ||
12278 | DRM_DEBUG_KMS("CRTC bw constrained, retrying\n"); | |
12279 | retry = false; | |
12280 | goto encoder_retry; | |
12281 | } | |
12282 | ||
d328c9d7 | 12283 | pipe_config->dither = pipe_config->pipe_bpp != base_bpp; |
4e53c2e0 | 12284 | DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n", |
d328c9d7 | 12285 | base_bpp, pipe_config->pipe_bpp, pipe_config->dither); |
4e53c2e0 | 12286 | |
7758a113 | 12287 | fail: |
548ee15b | 12288 | return ret; |
ee7b9f93 | 12289 | } |
47f1c6c9 | 12290 | |
ea9d758d | 12291 | static bool intel_crtc_in_use(struct drm_crtc *crtc) |
f6e5b160 | 12292 | { |
ea9d758d | 12293 | struct drm_encoder *encoder; |
f6e5b160 | 12294 | struct drm_device *dev = crtc->dev; |
f6e5b160 | 12295 | |
ea9d758d DV |
12296 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
12297 | if (encoder->crtc == crtc) | |
12298 | return true; | |
12299 | ||
12300 | return false; | |
12301 | } | |
12302 | ||
12303 | static void | |
0a9ab303 | 12304 | intel_modeset_update_state(struct drm_atomic_state *state) |
ea9d758d | 12305 | { |
0a9ab303 | 12306 | struct drm_device *dev = state->dev; |
ea9d758d | 12307 | struct intel_encoder *intel_encoder; |
0a9ab303 ACO |
12308 | struct drm_crtc *crtc; |
12309 | struct drm_crtc_state *crtc_state; | |
ea9d758d | 12310 | struct drm_connector *connector; |
8a75d157 | 12311 | int i; |
ea9d758d | 12312 | |
de419ab6 | 12313 | intel_shared_dpll_commit(state); |
ba41c0de | 12314 | |
b2784e15 | 12315 | for_each_intel_encoder(dev, intel_encoder) { |
ea9d758d DV |
12316 | if (!intel_encoder->base.crtc) |
12317 | continue; | |
12318 | ||
69024de8 ML |
12319 | crtc = intel_encoder->base.crtc; |
12320 | crtc_state = drm_atomic_get_existing_crtc_state(state, crtc); | |
12321 | if (!crtc_state || !needs_modeset(crtc->state)) | |
12322 | continue; | |
ea9d758d | 12323 | |
69024de8 | 12324 | intel_encoder->connectors_active = false; |
ea9d758d DV |
12325 | } |
12326 | ||
3cb480bc | 12327 | drm_atomic_helper_update_legacy_modeset_state(state->dev, state); |
ea9d758d | 12328 | |
7668851f | 12329 | /* Double check state. */ |
8a75d157 | 12330 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
0a9ab303 | 12331 | WARN_ON(crtc->state->enable != intel_crtc_in_use(crtc)); |
3cb480bc ML |
12332 | |
12333 | to_intel_crtc(crtc)->config = to_intel_crtc_state(crtc->state); | |
fc467a22 ML |
12334 | |
12335 | /* Update hwmode for vblank functions */ | |
12336 | if (crtc->state->active) | |
12337 | crtc->hwmode = crtc->state->adjusted_mode; | |
12338 | else | |
12339 | crtc->hwmode.crtc_clock = 0; | |
ea9d758d DV |
12340 | } |
12341 | ||
12342 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
12343 | if (!connector->encoder || !connector->encoder->crtc) | |
12344 | continue; | |
12345 | ||
69024de8 ML |
12346 | crtc = connector->encoder->crtc; |
12347 | crtc_state = drm_atomic_get_existing_crtc_state(state, crtc); | |
12348 | if (!crtc_state || !needs_modeset(crtc->state)) | |
12349 | continue; | |
ea9d758d | 12350 | |
53d9f4e9 | 12351 | if (crtc->state->active) { |
69024de8 ML |
12352 | struct drm_property *dpms_property = |
12353 | dev->mode_config.dpms_property; | |
68d34720 | 12354 | |
69024de8 ML |
12355 | connector->dpms = DRM_MODE_DPMS_ON; |
12356 | drm_object_property_set_value(&connector->base, dpms_property, DRM_MODE_DPMS_ON); | |
ea9d758d | 12357 | |
69024de8 ML |
12358 | intel_encoder = to_intel_encoder(connector->encoder); |
12359 | intel_encoder->connectors_active = true; | |
12360 | } else | |
12361 | connector->dpms = DRM_MODE_DPMS_OFF; | |
ea9d758d | 12362 | } |
ea9d758d DV |
12363 | } |
12364 | ||
3bd26263 | 12365 | static bool intel_fuzzy_clock_check(int clock1, int clock2) |
f1f644dc | 12366 | { |
3bd26263 | 12367 | int diff; |
f1f644dc JB |
12368 | |
12369 | if (clock1 == clock2) | |
12370 | return true; | |
12371 | ||
12372 | if (!clock1 || !clock2) | |
12373 | return false; | |
12374 | ||
12375 | diff = abs(clock1 - clock2); | |
12376 | ||
12377 | if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105) | |
12378 | return true; | |
12379 | ||
12380 | return false; | |
12381 | } | |
12382 | ||
25c5b266 DV |
12383 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
12384 | list_for_each_entry((intel_crtc), \ | |
12385 | &(dev)->mode_config.crtc_list, \ | |
12386 | base.head) \ | |
0973f18f | 12387 | if (mask & (1 <<(intel_crtc)->pipe)) |
25c5b266 | 12388 | |
cfb23ed6 ML |
12389 | |
12390 | static bool | |
12391 | intel_compare_m_n(unsigned int m, unsigned int n, | |
12392 | unsigned int m2, unsigned int n2, | |
12393 | bool exact) | |
12394 | { | |
12395 | if (m == m2 && n == n2) | |
12396 | return true; | |
12397 | ||
12398 | if (exact || !m || !n || !m2 || !n2) | |
12399 | return false; | |
12400 | ||
12401 | BUILD_BUG_ON(DATA_LINK_M_N_MASK > INT_MAX); | |
12402 | ||
12403 | if (m > m2) { | |
12404 | while (m > m2) { | |
12405 | m2 <<= 1; | |
12406 | n2 <<= 1; | |
12407 | } | |
12408 | } else if (m < m2) { | |
12409 | while (m < m2) { | |
12410 | m <<= 1; | |
12411 | n <<= 1; | |
12412 | } | |
12413 | } | |
12414 | ||
12415 | return m == m2 && n == n2; | |
12416 | } | |
12417 | ||
12418 | static bool | |
12419 | intel_compare_link_m_n(const struct intel_link_m_n *m_n, | |
12420 | struct intel_link_m_n *m2_n2, | |
12421 | bool adjust) | |
12422 | { | |
12423 | if (m_n->tu == m2_n2->tu && | |
12424 | intel_compare_m_n(m_n->gmch_m, m_n->gmch_n, | |
12425 | m2_n2->gmch_m, m2_n2->gmch_n, !adjust) && | |
12426 | intel_compare_m_n(m_n->link_m, m_n->link_n, | |
12427 | m2_n2->link_m, m2_n2->link_n, !adjust)) { | |
12428 | if (adjust) | |
12429 | *m2_n2 = *m_n; | |
12430 | ||
12431 | return true; | |
12432 | } | |
12433 | ||
12434 | return false; | |
12435 | } | |
12436 | ||
0e8ffe1b | 12437 | static bool |
2fa2fe9a | 12438 | intel_pipe_config_compare(struct drm_device *dev, |
5cec258b | 12439 | struct intel_crtc_state *current_config, |
cfb23ed6 ML |
12440 | struct intel_crtc_state *pipe_config, |
12441 | bool adjust) | |
0e8ffe1b | 12442 | { |
cfb23ed6 ML |
12443 | bool ret = true; |
12444 | ||
12445 | #define INTEL_ERR_OR_DBG_KMS(fmt, ...) \ | |
12446 | do { \ | |
12447 | if (!adjust) \ | |
12448 | DRM_ERROR(fmt, ##__VA_ARGS__); \ | |
12449 | else \ | |
12450 | DRM_DEBUG_KMS(fmt, ##__VA_ARGS__); \ | |
12451 | } while (0) | |
12452 | ||
66e985c0 DV |
12453 | #define PIPE_CONF_CHECK_X(name) \ |
12454 | if (current_config->name != pipe_config->name) { \ | |
cfb23ed6 | 12455 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
66e985c0 DV |
12456 | "(expected 0x%08x, found 0x%08x)\n", \ |
12457 | current_config->name, \ | |
12458 | pipe_config->name); \ | |
cfb23ed6 | 12459 | ret = false; \ |
66e985c0 DV |
12460 | } |
12461 | ||
08a24034 DV |
12462 | #define PIPE_CONF_CHECK_I(name) \ |
12463 | if (current_config->name != pipe_config->name) { \ | |
cfb23ed6 | 12464 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
08a24034 DV |
12465 | "(expected %i, found %i)\n", \ |
12466 | current_config->name, \ | |
12467 | pipe_config->name); \ | |
cfb23ed6 ML |
12468 | ret = false; \ |
12469 | } | |
12470 | ||
12471 | #define PIPE_CONF_CHECK_M_N(name) \ | |
12472 | if (!intel_compare_link_m_n(¤t_config->name, \ | |
12473 | &pipe_config->name,\ | |
12474 | adjust)) { \ | |
12475 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ | |
12476 | "(expected tu %i gmch %i/%i link %i/%i, " \ | |
12477 | "found tu %i, gmch %i/%i link %i/%i)\n", \ | |
12478 | current_config->name.tu, \ | |
12479 | current_config->name.gmch_m, \ | |
12480 | current_config->name.gmch_n, \ | |
12481 | current_config->name.link_m, \ | |
12482 | current_config->name.link_n, \ | |
12483 | pipe_config->name.tu, \ | |
12484 | pipe_config->name.gmch_m, \ | |
12485 | pipe_config->name.gmch_n, \ | |
12486 | pipe_config->name.link_m, \ | |
12487 | pipe_config->name.link_n); \ | |
12488 | ret = false; \ | |
12489 | } | |
12490 | ||
12491 | #define PIPE_CONF_CHECK_M_N_ALT(name, alt_name) \ | |
12492 | if (!intel_compare_link_m_n(¤t_config->name, \ | |
12493 | &pipe_config->name, adjust) && \ | |
12494 | !intel_compare_link_m_n(¤t_config->alt_name, \ | |
12495 | &pipe_config->name, adjust)) { \ | |
12496 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ | |
12497 | "(expected tu %i gmch %i/%i link %i/%i, " \ | |
12498 | "or tu %i gmch %i/%i link %i/%i, " \ | |
12499 | "found tu %i, gmch %i/%i link %i/%i)\n", \ | |
12500 | current_config->name.tu, \ | |
12501 | current_config->name.gmch_m, \ | |
12502 | current_config->name.gmch_n, \ | |
12503 | current_config->name.link_m, \ | |
12504 | current_config->name.link_n, \ | |
12505 | current_config->alt_name.tu, \ | |
12506 | current_config->alt_name.gmch_m, \ | |
12507 | current_config->alt_name.gmch_n, \ | |
12508 | current_config->alt_name.link_m, \ | |
12509 | current_config->alt_name.link_n, \ | |
12510 | pipe_config->name.tu, \ | |
12511 | pipe_config->name.gmch_m, \ | |
12512 | pipe_config->name.gmch_n, \ | |
12513 | pipe_config->name.link_m, \ | |
12514 | pipe_config->name.link_n); \ | |
12515 | ret = false; \ | |
88adfff1 DV |
12516 | } |
12517 | ||
b95af8be VK |
12518 | /* This is required for BDW+ where there is only one set of registers for |
12519 | * switching between high and low RR. | |
12520 | * This macro can be used whenever a comparison has to be made between one | |
12521 | * hw state and multiple sw state variables. | |
12522 | */ | |
12523 | #define PIPE_CONF_CHECK_I_ALT(name, alt_name) \ | |
12524 | if ((current_config->name != pipe_config->name) && \ | |
12525 | (current_config->alt_name != pipe_config->name)) { \ | |
cfb23ed6 | 12526 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
b95af8be VK |
12527 | "(expected %i or %i, found %i)\n", \ |
12528 | current_config->name, \ | |
12529 | current_config->alt_name, \ | |
12530 | pipe_config->name); \ | |
cfb23ed6 | 12531 | ret = false; \ |
b95af8be VK |
12532 | } |
12533 | ||
1bd1bd80 DV |
12534 | #define PIPE_CONF_CHECK_FLAGS(name, mask) \ |
12535 | if ((current_config->name ^ pipe_config->name) & (mask)) { \ | |
cfb23ed6 | 12536 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name "(" #mask ") " \ |
1bd1bd80 DV |
12537 | "(expected %i, found %i)\n", \ |
12538 | current_config->name & (mask), \ | |
12539 | pipe_config->name & (mask)); \ | |
cfb23ed6 | 12540 | ret = false; \ |
1bd1bd80 DV |
12541 | } |
12542 | ||
5e550656 VS |
12543 | #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \ |
12544 | if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \ | |
cfb23ed6 | 12545 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
5e550656 VS |
12546 | "(expected %i, found %i)\n", \ |
12547 | current_config->name, \ | |
12548 | pipe_config->name); \ | |
cfb23ed6 | 12549 | ret = false; \ |
5e550656 VS |
12550 | } |
12551 | ||
bb760063 DV |
12552 | #define PIPE_CONF_QUIRK(quirk) \ |
12553 | ((current_config->quirks | pipe_config->quirks) & (quirk)) | |
12554 | ||
eccb140b DV |
12555 | PIPE_CONF_CHECK_I(cpu_transcoder); |
12556 | ||
08a24034 DV |
12557 | PIPE_CONF_CHECK_I(has_pch_encoder); |
12558 | PIPE_CONF_CHECK_I(fdi_lanes); | |
cfb23ed6 | 12559 | PIPE_CONF_CHECK_M_N(fdi_m_n); |
08a24034 | 12560 | |
eb14cb74 | 12561 | PIPE_CONF_CHECK_I(has_dp_encoder); |
b95af8be VK |
12562 | |
12563 | if (INTEL_INFO(dev)->gen < 8) { | |
cfb23ed6 ML |
12564 | PIPE_CONF_CHECK_M_N(dp_m_n); |
12565 | ||
12566 | PIPE_CONF_CHECK_I(has_drrs); | |
12567 | if (current_config->has_drrs) | |
12568 | PIPE_CONF_CHECK_M_N(dp_m2_n2); | |
12569 | } else | |
12570 | PIPE_CONF_CHECK_M_N_ALT(dp_m_n, dp_m2_n2); | |
eb14cb74 | 12571 | |
2d112de7 ACO |
12572 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hdisplay); |
12573 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_htotal); | |
12574 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hblank_start); | |
12575 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hblank_end); | |
12576 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hsync_start); | |
12577 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hsync_end); | |
1bd1bd80 | 12578 | |
2d112de7 ACO |
12579 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vdisplay); |
12580 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vtotal); | |
12581 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vblank_start); | |
12582 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vblank_end); | |
12583 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_start); | |
12584 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_end); | |
1bd1bd80 | 12585 | |
c93f54cf | 12586 | PIPE_CONF_CHECK_I(pixel_multiplier); |
6897b4b5 | 12587 | PIPE_CONF_CHECK_I(has_hdmi_sink); |
b5a9fa09 DV |
12588 | if ((INTEL_INFO(dev)->gen < 8 && !IS_HASWELL(dev)) || |
12589 | IS_VALLEYVIEW(dev)) | |
12590 | PIPE_CONF_CHECK_I(limited_color_range); | |
e43823ec | 12591 | PIPE_CONF_CHECK_I(has_infoframe); |
6c49f241 | 12592 | |
9ed109a7 DV |
12593 | PIPE_CONF_CHECK_I(has_audio); |
12594 | ||
2d112de7 | 12595 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
1bd1bd80 DV |
12596 | DRM_MODE_FLAG_INTERLACE); |
12597 | ||
bb760063 | 12598 | if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) { |
2d112de7 | 12599 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 12600 | DRM_MODE_FLAG_PHSYNC); |
2d112de7 | 12601 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 12602 | DRM_MODE_FLAG_NHSYNC); |
2d112de7 | 12603 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 12604 | DRM_MODE_FLAG_PVSYNC); |
2d112de7 | 12605 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 DV |
12606 | DRM_MODE_FLAG_NVSYNC); |
12607 | } | |
045ac3b5 | 12608 | |
37327abd VS |
12609 | PIPE_CONF_CHECK_I(pipe_src_w); |
12610 | PIPE_CONF_CHECK_I(pipe_src_h); | |
1bd1bd80 | 12611 | |
9953599b DV |
12612 | /* |
12613 | * FIXME: BIOS likes to set up a cloned config with lvds+external | |
12614 | * screen. Since we don't yet re-compute the pipe config when moving | |
12615 | * just the lvds port away to another pipe the sw tracking won't match. | |
12616 | * | |
12617 | * Proper atomic modesets with recomputed global state will fix this. | |
12618 | * Until then just don't check gmch state for inherited modes. | |
12619 | */ | |
12620 | if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE)) { | |
12621 | PIPE_CONF_CHECK_I(gmch_pfit.control); | |
12622 | /* pfit ratios are autocomputed by the hw on gen4+ */ | |
12623 | if (INTEL_INFO(dev)->gen < 4) | |
12624 | PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios); | |
12625 | PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits); | |
12626 | } | |
12627 | ||
fd4daa9c CW |
12628 | PIPE_CONF_CHECK_I(pch_pfit.enabled); |
12629 | if (current_config->pch_pfit.enabled) { | |
12630 | PIPE_CONF_CHECK_I(pch_pfit.pos); | |
12631 | PIPE_CONF_CHECK_I(pch_pfit.size); | |
12632 | } | |
2fa2fe9a | 12633 | |
a1b2278e CK |
12634 | PIPE_CONF_CHECK_I(scaler_state.scaler_id); |
12635 | ||
e59150dc JB |
12636 | /* BDW+ don't expose a synchronous way to read the state */ |
12637 | if (IS_HASWELL(dev)) | |
12638 | PIPE_CONF_CHECK_I(ips_enabled); | |
42db64ef | 12639 | |
282740f7 VS |
12640 | PIPE_CONF_CHECK_I(double_wide); |
12641 | ||
26804afd DV |
12642 | PIPE_CONF_CHECK_X(ddi_pll_sel); |
12643 | ||
c0d43d62 | 12644 | PIPE_CONF_CHECK_I(shared_dpll); |
66e985c0 | 12645 | PIPE_CONF_CHECK_X(dpll_hw_state.dpll); |
8bcc2795 | 12646 | PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md); |
66e985c0 DV |
12647 | PIPE_CONF_CHECK_X(dpll_hw_state.fp0); |
12648 | PIPE_CONF_CHECK_X(dpll_hw_state.fp1); | |
d452c5b6 | 12649 | PIPE_CONF_CHECK_X(dpll_hw_state.wrpll); |
3f4cd19f DL |
12650 | PIPE_CONF_CHECK_X(dpll_hw_state.ctrl1); |
12651 | PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr1); | |
12652 | PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr2); | |
c0d43d62 | 12653 | |
42571aef VS |
12654 | if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) |
12655 | PIPE_CONF_CHECK_I(pipe_bpp); | |
12656 | ||
2d112de7 | 12657 | PIPE_CONF_CHECK_CLOCK_FUZZY(base.adjusted_mode.crtc_clock); |
a9a7e98a | 12658 | PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock); |
5e550656 | 12659 | |
66e985c0 | 12660 | #undef PIPE_CONF_CHECK_X |
08a24034 | 12661 | #undef PIPE_CONF_CHECK_I |
b95af8be | 12662 | #undef PIPE_CONF_CHECK_I_ALT |
1bd1bd80 | 12663 | #undef PIPE_CONF_CHECK_FLAGS |
5e550656 | 12664 | #undef PIPE_CONF_CHECK_CLOCK_FUZZY |
bb760063 | 12665 | #undef PIPE_CONF_QUIRK |
cfb23ed6 | 12666 | #undef INTEL_ERR_OR_DBG_KMS |
88adfff1 | 12667 | |
cfb23ed6 | 12668 | return ret; |
0e8ffe1b DV |
12669 | } |
12670 | ||
08db6652 DL |
12671 | static void check_wm_state(struct drm_device *dev) |
12672 | { | |
12673 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12674 | struct skl_ddb_allocation hw_ddb, *sw_ddb; | |
12675 | struct intel_crtc *intel_crtc; | |
12676 | int plane; | |
12677 | ||
12678 | if (INTEL_INFO(dev)->gen < 9) | |
12679 | return; | |
12680 | ||
12681 | skl_ddb_get_hw_state(dev_priv, &hw_ddb); | |
12682 | sw_ddb = &dev_priv->wm.skl_hw.ddb; | |
12683 | ||
12684 | for_each_intel_crtc(dev, intel_crtc) { | |
12685 | struct skl_ddb_entry *hw_entry, *sw_entry; | |
12686 | const enum pipe pipe = intel_crtc->pipe; | |
12687 | ||
12688 | if (!intel_crtc->active) | |
12689 | continue; | |
12690 | ||
12691 | /* planes */ | |
dd740780 | 12692 | for_each_plane(dev_priv, pipe, plane) { |
08db6652 DL |
12693 | hw_entry = &hw_ddb.plane[pipe][plane]; |
12694 | sw_entry = &sw_ddb->plane[pipe][plane]; | |
12695 | ||
12696 | if (skl_ddb_entry_equal(hw_entry, sw_entry)) | |
12697 | continue; | |
12698 | ||
12699 | DRM_ERROR("mismatch in DDB state pipe %c plane %d " | |
12700 | "(expected (%u,%u), found (%u,%u))\n", | |
12701 | pipe_name(pipe), plane + 1, | |
12702 | sw_entry->start, sw_entry->end, | |
12703 | hw_entry->start, hw_entry->end); | |
12704 | } | |
12705 | ||
12706 | /* cursor */ | |
12707 | hw_entry = &hw_ddb.cursor[pipe]; | |
12708 | sw_entry = &sw_ddb->cursor[pipe]; | |
12709 | ||
12710 | if (skl_ddb_entry_equal(hw_entry, sw_entry)) | |
12711 | continue; | |
12712 | ||
12713 | DRM_ERROR("mismatch in DDB state pipe %c cursor " | |
12714 | "(expected (%u,%u), found (%u,%u))\n", | |
12715 | pipe_name(pipe), | |
12716 | sw_entry->start, sw_entry->end, | |
12717 | hw_entry->start, hw_entry->end); | |
12718 | } | |
12719 | } | |
12720 | ||
91d1b4bd DV |
12721 | static void |
12722 | check_connector_state(struct drm_device *dev) | |
8af6cf88 | 12723 | { |
8af6cf88 DV |
12724 | struct intel_connector *connector; |
12725 | ||
3a3371ff | 12726 | for_each_intel_connector(dev, connector) { |
ad3c558f ML |
12727 | struct drm_encoder *encoder = connector->base.encoder; |
12728 | struct drm_connector_state *state = connector->base.state; | |
12729 | ||
8af6cf88 DV |
12730 | /* This also checks the encoder/connector hw state with the |
12731 | * ->get_hw_state callbacks. */ | |
12732 | intel_connector_check_state(connector); | |
12733 | ||
ad3c558f | 12734 | I915_STATE_WARN(state->best_encoder != encoder, |
8af6cf88 DV |
12735 | "connector's staged encoder doesn't match current encoder\n"); |
12736 | } | |
91d1b4bd DV |
12737 | } |
12738 | ||
12739 | static void | |
12740 | check_encoder_state(struct drm_device *dev) | |
12741 | { | |
12742 | struct intel_encoder *encoder; | |
12743 | struct intel_connector *connector; | |
8af6cf88 | 12744 | |
b2784e15 | 12745 | for_each_intel_encoder(dev, encoder) { |
8af6cf88 DV |
12746 | bool enabled = false; |
12747 | bool active = false; | |
12748 | enum pipe pipe, tracked_pipe; | |
12749 | ||
12750 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", | |
12751 | encoder->base.base.id, | |
8e329a03 | 12752 | encoder->base.name); |
8af6cf88 | 12753 | |
e2c719b7 | 12754 | I915_STATE_WARN(encoder->connectors_active && !encoder->base.crtc, |
8af6cf88 DV |
12755 | "encoder's active_connectors set, but no crtc\n"); |
12756 | ||
3a3371ff | 12757 | for_each_intel_connector(dev, connector) { |
8af6cf88 DV |
12758 | if (connector->base.encoder != &encoder->base) |
12759 | continue; | |
12760 | enabled = true; | |
12761 | if (connector->base.dpms != DRM_MODE_DPMS_OFF) | |
12762 | active = true; | |
ad3c558f ML |
12763 | |
12764 | I915_STATE_WARN(connector->base.state->crtc != | |
12765 | encoder->base.crtc, | |
12766 | "connector's crtc doesn't match encoder crtc\n"); | |
8af6cf88 | 12767 | } |
0e32b39c DA |
12768 | /* |
12769 | * for MST connectors if we unplug the connector is gone | |
12770 | * away but the encoder is still connected to a crtc | |
12771 | * until a modeset happens in response to the hotplug. | |
12772 | */ | |
12773 | if (!enabled && encoder->base.encoder_type == DRM_MODE_ENCODER_DPMST) | |
12774 | continue; | |
12775 | ||
e2c719b7 | 12776 | I915_STATE_WARN(!!encoder->base.crtc != enabled, |
8af6cf88 DV |
12777 | "encoder's enabled state mismatch " |
12778 | "(expected %i, found %i)\n", | |
12779 | !!encoder->base.crtc, enabled); | |
e2c719b7 | 12780 | I915_STATE_WARN(active && !encoder->base.crtc, |
8af6cf88 DV |
12781 | "active encoder with no crtc\n"); |
12782 | ||
e2c719b7 | 12783 | I915_STATE_WARN(encoder->connectors_active != active, |
8af6cf88 DV |
12784 | "encoder's computed active state doesn't match tracked active state " |
12785 | "(expected %i, found %i)\n", active, encoder->connectors_active); | |
12786 | ||
12787 | active = encoder->get_hw_state(encoder, &pipe); | |
e2c719b7 | 12788 | I915_STATE_WARN(active != encoder->connectors_active, |
8af6cf88 DV |
12789 | "encoder's hw state doesn't match sw tracking " |
12790 | "(expected %i, found %i)\n", | |
12791 | encoder->connectors_active, active); | |
12792 | ||
12793 | if (!encoder->base.crtc) | |
12794 | continue; | |
12795 | ||
12796 | tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe; | |
e2c719b7 | 12797 | I915_STATE_WARN(active && pipe != tracked_pipe, |
8af6cf88 DV |
12798 | "active encoder's pipe doesn't match" |
12799 | "(expected %i, found %i)\n", | |
12800 | tracked_pipe, pipe); | |
12801 | ||
12802 | } | |
91d1b4bd DV |
12803 | } |
12804 | ||
12805 | static void | |
12806 | check_crtc_state(struct drm_device *dev) | |
12807 | { | |
fbee40df | 12808 | struct drm_i915_private *dev_priv = dev->dev_private; |
91d1b4bd DV |
12809 | struct intel_crtc *crtc; |
12810 | struct intel_encoder *encoder; | |
5cec258b | 12811 | struct intel_crtc_state pipe_config; |
8af6cf88 | 12812 | |
d3fcc808 | 12813 | for_each_intel_crtc(dev, crtc) { |
8af6cf88 DV |
12814 | bool enabled = false; |
12815 | bool active = false; | |
12816 | ||
045ac3b5 JB |
12817 | memset(&pipe_config, 0, sizeof(pipe_config)); |
12818 | ||
8af6cf88 DV |
12819 | DRM_DEBUG_KMS("[CRTC:%d]\n", |
12820 | crtc->base.base.id); | |
12821 | ||
83d65738 | 12822 | I915_STATE_WARN(crtc->active && !crtc->base.state->enable, |
8af6cf88 DV |
12823 | "active crtc, but not enabled in sw tracking\n"); |
12824 | ||
b2784e15 | 12825 | for_each_intel_encoder(dev, encoder) { |
8af6cf88 DV |
12826 | if (encoder->base.crtc != &crtc->base) |
12827 | continue; | |
12828 | enabled = true; | |
12829 | if (encoder->connectors_active) | |
12830 | active = true; | |
12831 | } | |
6c49f241 | 12832 | |
e2c719b7 | 12833 | I915_STATE_WARN(active != crtc->active, |
8af6cf88 DV |
12834 | "crtc's computed active state doesn't match tracked active state " |
12835 | "(expected %i, found %i)\n", active, crtc->active); | |
83d65738 | 12836 | I915_STATE_WARN(enabled != crtc->base.state->enable, |
8af6cf88 | 12837 | "crtc's computed enabled state doesn't match tracked enabled state " |
83d65738 MR |
12838 | "(expected %i, found %i)\n", enabled, |
12839 | crtc->base.state->enable); | |
8af6cf88 | 12840 | |
0e8ffe1b DV |
12841 | active = dev_priv->display.get_pipe_config(crtc, |
12842 | &pipe_config); | |
d62cf62a | 12843 | |
b6b5d049 VS |
12844 | /* hw state is inconsistent with the pipe quirk */ |
12845 | if ((crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
12846 | (crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
d62cf62a DV |
12847 | active = crtc->active; |
12848 | ||
b2784e15 | 12849 | for_each_intel_encoder(dev, encoder) { |
3eaba51c | 12850 | enum pipe pipe; |
6c49f241 DV |
12851 | if (encoder->base.crtc != &crtc->base) |
12852 | continue; | |
1d37b689 | 12853 | if (encoder->get_hw_state(encoder, &pipe)) |
6c49f241 DV |
12854 | encoder->get_config(encoder, &pipe_config); |
12855 | } | |
12856 | ||
e2c719b7 | 12857 | I915_STATE_WARN(crtc->active != active, |
0e8ffe1b DV |
12858 | "crtc active state doesn't match with hw state " |
12859 | "(expected %i, found %i)\n", crtc->active, active); | |
12860 | ||
53d9f4e9 ML |
12861 | I915_STATE_WARN(crtc->active != crtc->base.state->active, |
12862 | "transitional active state does not match atomic hw state " | |
12863 | "(expected %i, found %i)\n", crtc->base.state->active, crtc->active); | |
12864 | ||
cfb23ed6 ML |
12865 | if (!active) |
12866 | continue; | |
12867 | ||
12868 | if (!intel_pipe_config_compare(dev, crtc->config, | |
12869 | &pipe_config, false)) { | |
e2c719b7 | 12870 | I915_STATE_WARN(1, "pipe state doesn't match!\n"); |
c0b03411 DV |
12871 | intel_dump_pipe_config(crtc, &pipe_config, |
12872 | "[hw state]"); | |
6e3c9717 | 12873 | intel_dump_pipe_config(crtc, crtc->config, |
c0b03411 DV |
12874 | "[sw state]"); |
12875 | } | |
8af6cf88 DV |
12876 | } |
12877 | } | |
12878 | ||
91d1b4bd DV |
12879 | static void |
12880 | check_shared_dpll_state(struct drm_device *dev) | |
12881 | { | |
fbee40df | 12882 | struct drm_i915_private *dev_priv = dev->dev_private; |
91d1b4bd DV |
12883 | struct intel_crtc *crtc; |
12884 | struct intel_dpll_hw_state dpll_hw_state; | |
12885 | int i; | |
5358901f DV |
12886 | |
12887 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { | |
12888 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
12889 | int enabled_crtcs = 0, active_crtcs = 0; | |
12890 | bool active; | |
12891 | ||
12892 | memset(&dpll_hw_state, 0, sizeof(dpll_hw_state)); | |
12893 | ||
12894 | DRM_DEBUG_KMS("%s\n", pll->name); | |
12895 | ||
12896 | active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state); | |
12897 | ||
e2c719b7 | 12898 | I915_STATE_WARN(pll->active > hweight32(pll->config.crtc_mask), |
5358901f | 12899 | "more active pll users than references: %i vs %i\n", |
3e369b76 | 12900 | pll->active, hweight32(pll->config.crtc_mask)); |
e2c719b7 | 12901 | I915_STATE_WARN(pll->active && !pll->on, |
5358901f | 12902 | "pll in active use but not on in sw tracking\n"); |
e2c719b7 | 12903 | I915_STATE_WARN(pll->on && !pll->active, |
35c95375 | 12904 | "pll in on but not on in use in sw tracking\n"); |
e2c719b7 | 12905 | I915_STATE_WARN(pll->on != active, |
5358901f DV |
12906 | "pll on state mismatch (expected %i, found %i)\n", |
12907 | pll->on, active); | |
12908 | ||
d3fcc808 | 12909 | for_each_intel_crtc(dev, crtc) { |
83d65738 | 12910 | if (crtc->base.state->enable && intel_crtc_to_shared_dpll(crtc) == pll) |
5358901f DV |
12911 | enabled_crtcs++; |
12912 | if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll) | |
12913 | active_crtcs++; | |
12914 | } | |
e2c719b7 | 12915 | I915_STATE_WARN(pll->active != active_crtcs, |
5358901f DV |
12916 | "pll active crtcs mismatch (expected %i, found %i)\n", |
12917 | pll->active, active_crtcs); | |
e2c719b7 | 12918 | I915_STATE_WARN(hweight32(pll->config.crtc_mask) != enabled_crtcs, |
5358901f | 12919 | "pll enabled crtcs mismatch (expected %i, found %i)\n", |
3e369b76 | 12920 | hweight32(pll->config.crtc_mask), enabled_crtcs); |
66e985c0 | 12921 | |
e2c719b7 | 12922 | I915_STATE_WARN(pll->on && memcmp(&pll->config.hw_state, &dpll_hw_state, |
66e985c0 DV |
12923 | sizeof(dpll_hw_state)), |
12924 | "pll hw state mismatch\n"); | |
5358901f | 12925 | } |
8af6cf88 DV |
12926 | } |
12927 | ||
91d1b4bd DV |
12928 | void |
12929 | intel_modeset_check_state(struct drm_device *dev) | |
12930 | { | |
08db6652 | 12931 | check_wm_state(dev); |
91d1b4bd DV |
12932 | check_connector_state(dev); |
12933 | check_encoder_state(dev); | |
12934 | check_crtc_state(dev); | |
12935 | check_shared_dpll_state(dev); | |
12936 | } | |
12937 | ||
5cec258b | 12938 | void ironlake_check_encoder_dotclock(const struct intel_crtc_state *pipe_config, |
18442d08 VS |
12939 | int dotclock) |
12940 | { | |
12941 | /* | |
12942 | * FDI already provided one idea for the dotclock. | |
12943 | * Yell if the encoder disagrees. | |
12944 | */ | |
2d112de7 | 12945 | WARN(!intel_fuzzy_clock_check(pipe_config->base.adjusted_mode.crtc_clock, dotclock), |
18442d08 | 12946 | "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n", |
2d112de7 | 12947 | pipe_config->base.adjusted_mode.crtc_clock, dotclock); |
18442d08 VS |
12948 | } |
12949 | ||
80715b2f VS |
12950 | static void update_scanline_offset(struct intel_crtc *crtc) |
12951 | { | |
12952 | struct drm_device *dev = crtc->base.dev; | |
12953 | ||
12954 | /* | |
12955 | * The scanline counter increments at the leading edge of hsync. | |
12956 | * | |
12957 | * On most platforms it starts counting from vtotal-1 on the | |
12958 | * first active line. That means the scanline counter value is | |
12959 | * always one less than what we would expect. Ie. just after | |
12960 | * start of vblank, which also occurs at start of hsync (on the | |
12961 | * last active line), the scanline counter will read vblank_start-1. | |
12962 | * | |
12963 | * On gen2 the scanline counter starts counting from 1 instead | |
12964 | * of vtotal-1, so we have to subtract one (or rather add vtotal-1 | |
12965 | * to keep the value positive), instead of adding one. | |
12966 | * | |
12967 | * On HSW+ the behaviour of the scanline counter depends on the output | |
12968 | * type. For DP ports it behaves like most other platforms, but on HDMI | |
12969 | * there's an extra 1 line difference. So we need to add two instead of | |
12970 | * one to the value. | |
12971 | */ | |
12972 | if (IS_GEN2(dev)) { | |
6e3c9717 | 12973 | const struct drm_display_mode *mode = &crtc->config->base.adjusted_mode; |
80715b2f VS |
12974 | int vtotal; |
12975 | ||
12976 | vtotal = mode->crtc_vtotal; | |
12977 | if (mode->flags & DRM_MODE_FLAG_INTERLACE) | |
12978 | vtotal /= 2; | |
12979 | ||
12980 | crtc->scanline_offset = vtotal - 1; | |
12981 | } else if (HAS_DDI(dev) && | |
409ee761 | 12982 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) { |
80715b2f VS |
12983 | crtc->scanline_offset = 2; |
12984 | } else | |
12985 | crtc->scanline_offset = 1; | |
12986 | } | |
12987 | ||
ad421372 | 12988 | static void intel_modeset_clear_plls(struct drm_atomic_state *state) |
ed6739ef | 12989 | { |
225da59b | 12990 | struct drm_device *dev = state->dev; |
ed6739ef | 12991 | struct drm_i915_private *dev_priv = to_i915(dev); |
ad421372 | 12992 | struct intel_shared_dpll_config *shared_dpll = NULL; |
ed6739ef | 12993 | struct intel_crtc *intel_crtc; |
0a9ab303 ACO |
12994 | struct intel_crtc_state *intel_crtc_state; |
12995 | struct drm_crtc *crtc; | |
12996 | struct drm_crtc_state *crtc_state; | |
0a9ab303 | 12997 | int i; |
ed6739ef ACO |
12998 | |
12999 | if (!dev_priv->display.crtc_compute_clock) | |
ad421372 | 13000 | return; |
ed6739ef | 13001 | |
0a9ab303 | 13002 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
ad421372 ML |
13003 | int dpll; |
13004 | ||
0a9ab303 | 13005 | intel_crtc = to_intel_crtc(crtc); |
4978cc93 | 13006 | intel_crtc_state = to_intel_crtc_state(crtc_state); |
ad421372 | 13007 | dpll = intel_crtc_state->shared_dpll; |
0a9ab303 | 13008 | |
ad421372 | 13009 | if (!needs_modeset(crtc_state) || dpll == DPLL_ID_PRIVATE) |
225da59b ACO |
13010 | continue; |
13011 | ||
ad421372 | 13012 | intel_crtc_state->shared_dpll = DPLL_ID_PRIVATE; |
0a9ab303 | 13013 | |
ad421372 ML |
13014 | if (!shared_dpll) |
13015 | shared_dpll = intel_atomic_get_shared_dpll_state(state); | |
ed6739ef | 13016 | |
ad421372 ML |
13017 | shared_dpll[dpll].crtc_mask &= ~(1 << intel_crtc->pipe); |
13018 | } | |
ed6739ef ACO |
13019 | } |
13020 | ||
99d736a2 ML |
13021 | /* |
13022 | * This implements the workaround described in the "notes" section of the mode | |
13023 | * set sequence documentation. When going from no pipes or single pipe to | |
13024 | * multiple pipes, and planes are enabled after the pipe, we need to wait at | |
13025 | * least 2 vblanks on the first pipe before enabling planes on the second pipe. | |
13026 | */ | |
13027 | static int haswell_mode_set_planes_workaround(struct drm_atomic_state *state) | |
13028 | { | |
13029 | struct drm_crtc_state *crtc_state; | |
13030 | struct intel_crtc *intel_crtc; | |
13031 | struct drm_crtc *crtc; | |
13032 | struct intel_crtc_state *first_crtc_state = NULL; | |
13033 | struct intel_crtc_state *other_crtc_state = NULL; | |
13034 | enum pipe first_pipe = INVALID_PIPE, enabled_pipe = INVALID_PIPE; | |
13035 | int i; | |
13036 | ||
13037 | /* look at all crtc's that are going to be enabled in during modeset */ | |
13038 | for_each_crtc_in_state(state, crtc, crtc_state, i) { | |
13039 | intel_crtc = to_intel_crtc(crtc); | |
13040 | ||
13041 | if (!crtc_state->active || !needs_modeset(crtc_state)) | |
13042 | continue; | |
13043 | ||
13044 | if (first_crtc_state) { | |
13045 | other_crtc_state = to_intel_crtc_state(crtc_state); | |
13046 | break; | |
13047 | } else { | |
13048 | first_crtc_state = to_intel_crtc_state(crtc_state); | |
13049 | first_pipe = intel_crtc->pipe; | |
13050 | } | |
13051 | } | |
13052 | ||
13053 | /* No workaround needed? */ | |
13054 | if (!first_crtc_state) | |
13055 | return 0; | |
13056 | ||
13057 | /* w/a possibly needed, check how many crtc's are already enabled. */ | |
13058 | for_each_intel_crtc(state->dev, intel_crtc) { | |
13059 | struct intel_crtc_state *pipe_config; | |
13060 | ||
13061 | pipe_config = intel_atomic_get_crtc_state(state, intel_crtc); | |
13062 | if (IS_ERR(pipe_config)) | |
13063 | return PTR_ERR(pipe_config); | |
13064 | ||
13065 | pipe_config->hsw_workaround_pipe = INVALID_PIPE; | |
13066 | ||
13067 | if (!pipe_config->base.active || | |
13068 | needs_modeset(&pipe_config->base)) | |
13069 | continue; | |
13070 | ||
13071 | /* 2 or more enabled crtcs means no need for w/a */ | |
13072 | if (enabled_pipe != INVALID_PIPE) | |
13073 | return 0; | |
13074 | ||
13075 | enabled_pipe = intel_crtc->pipe; | |
13076 | } | |
13077 | ||
13078 | if (enabled_pipe != INVALID_PIPE) | |
13079 | first_crtc_state->hsw_workaround_pipe = enabled_pipe; | |
13080 | else if (other_crtc_state) | |
13081 | other_crtc_state->hsw_workaround_pipe = first_pipe; | |
13082 | ||
13083 | return 0; | |
13084 | } | |
13085 | ||
27c329ed ML |
13086 | static int intel_modeset_all_pipes(struct drm_atomic_state *state) |
13087 | { | |
13088 | struct drm_crtc *crtc; | |
13089 | struct drm_crtc_state *crtc_state; | |
13090 | int ret = 0; | |
13091 | ||
13092 | /* add all active pipes to the state */ | |
13093 | for_each_crtc(state->dev, crtc) { | |
13094 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
13095 | if (IS_ERR(crtc_state)) | |
13096 | return PTR_ERR(crtc_state); | |
13097 | ||
13098 | if (!crtc_state->active || needs_modeset(crtc_state)) | |
13099 | continue; | |
13100 | ||
13101 | crtc_state->mode_changed = true; | |
13102 | ||
13103 | ret = drm_atomic_add_affected_connectors(state, crtc); | |
13104 | if (ret) | |
13105 | break; | |
13106 | ||
13107 | ret = drm_atomic_add_affected_planes(state, crtc); | |
13108 | if (ret) | |
13109 | break; | |
13110 | } | |
13111 | ||
13112 | return ret; | |
13113 | } | |
13114 | ||
13115 | ||
054518dd | 13116 | /* Code that should eventually be part of atomic_check() */ |
c347a676 | 13117 | static int intel_modeset_checks(struct drm_atomic_state *state) |
054518dd ACO |
13118 | { |
13119 | struct drm_device *dev = state->dev; | |
27c329ed | 13120 | struct drm_i915_private *dev_priv = dev->dev_private; |
054518dd ACO |
13121 | int ret; |
13122 | ||
b359283a ML |
13123 | if (!check_digital_port_conflicts(state)) { |
13124 | DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n"); | |
13125 | return -EINVAL; | |
13126 | } | |
13127 | ||
054518dd ACO |
13128 | /* |
13129 | * See if the config requires any additional preparation, e.g. | |
13130 | * to adjust global state with pipes off. We need to do this | |
13131 | * here so we can get the modeset_pipe updated config for the new | |
13132 | * mode set on this crtc. For other crtcs we need to use the | |
13133 | * adjusted_mode bits in the crtc directly. | |
13134 | */ | |
27c329ed ML |
13135 | if (dev_priv->display.modeset_calc_cdclk) { |
13136 | unsigned int cdclk; | |
b432e5cf | 13137 | |
27c329ed ML |
13138 | ret = dev_priv->display.modeset_calc_cdclk(state); |
13139 | ||
13140 | cdclk = to_intel_atomic_state(state)->cdclk; | |
13141 | if (!ret && cdclk != dev_priv->cdclk_freq) | |
13142 | ret = intel_modeset_all_pipes(state); | |
13143 | ||
13144 | if (ret < 0) | |
054518dd | 13145 | return ret; |
27c329ed ML |
13146 | } else |
13147 | to_intel_atomic_state(state)->cdclk = dev_priv->cdclk_freq; | |
054518dd | 13148 | |
ad421372 | 13149 | intel_modeset_clear_plls(state); |
054518dd | 13150 | |
99d736a2 | 13151 | if (IS_HASWELL(dev)) |
ad421372 | 13152 | return haswell_mode_set_planes_workaround(state); |
99d736a2 | 13153 | |
ad421372 | 13154 | return 0; |
c347a676 ACO |
13155 | } |
13156 | ||
13157 | static int | |
13158 | intel_modeset_compute_config(struct drm_atomic_state *state) | |
13159 | { | |
13160 | struct drm_crtc *crtc; | |
13161 | struct drm_crtc_state *crtc_state; | |
13162 | int ret, i; | |
61333b60 | 13163 | bool any_ms = false; |
c347a676 ACO |
13164 | |
13165 | ret = drm_atomic_helper_check_modeset(state->dev, state); | |
054518dd ACO |
13166 | if (ret) |
13167 | return ret; | |
13168 | ||
c347a676 | 13169 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
cfb23ed6 ML |
13170 | struct intel_crtc_state *pipe_config = |
13171 | to_intel_crtc_state(crtc_state); | |
5c1e3426 | 13172 | bool modeset, recalc = false; |
cfb23ed6 | 13173 | |
61333b60 ML |
13174 | if (!crtc_state->enable) { |
13175 | if (needs_modeset(crtc_state)) | |
13176 | any_ms = true; | |
c347a676 | 13177 | continue; |
61333b60 | 13178 | } |
c347a676 | 13179 | |
cfb23ed6 | 13180 | modeset = needs_modeset(crtc_state); |
5c1e3426 ML |
13181 | /* see comment in intel_modeset_readout_hw_state */ |
13182 | if (!modeset && crtc_state->mode_blob != crtc->state->mode_blob && | |
13183 | pipe_config->quirks & PIPE_CONFIG_QUIRK_INHERITED_MODE) | |
13184 | recalc = true; | |
cfb23ed6 ML |
13185 | |
13186 | if (!modeset && !recalc) | |
13187 | continue; | |
13188 | ||
13189 | if (recalc) { | |
b359283a ML |
13190 | ret = drm_atomic_add_affected_connectors(state, crtc); |
13191 | if (ret) | |
13192 | return ret; | |
13193 | } | |
13194 | ||
cfb23ed6 | 13195 | ret = intel_modeset_pipe_config(crtc, pipe_config); |
c347a676 ACO |
13196 | if (ret) |
13197 | return ret; | |
13198 | ||
5c1e3426 ML |
13199 | if (recalc && (!i915.fastboot || |
13200 | !intel_pipe_config_compare(state->dev, | |
cfb23ed6 | 13201 | to_intel_crtc_state(crtc->state), |
5c1e3426 | 13202 | pipe_config, true))) { |
cfb23ed6 ML |
13203 | modeset = crtc_state->mode_changed = true; |
13204 | ||
13205 | ret = drm_atomic_add_affected_planes(state, crtc); | |
13206 | if (ret) | |
13207 | return ret; | |
13208 | } | |
61333b60 | 13209 | |
cfb23ed6 | 13210 | any_ms = modeset; |
c347a676 | 13211 | intel_dump_pipe_config(to_intel_crtc(crtc), |
cfb23ed6 ML |
13212 | pipe_config, |
13213 | modeset ? "[modeset]" : "[fastboot]"); | |
c347a676 ACO |
13214 | } |
13215 | ||
61333b60 ML |
13216 | if (any_ms) { |
13217 | ret = intel_modeset_checks(state); | |
13218 | ||
13219 | if (ret) | |
13220 | return ret; | |
27c329ed ML |
13221 | } else |
13222 | to_intel_atomic_state(state)->cdclk = | |
13223 | to_i915(state->dev)->cdclk_freq; | |
c347a676 ACO |
13224 | |
13225 | return drm_atomic_helper_check_planes(state->dev, state); | |
054518dd ACO |
13226 | } |
13227 | ||
c72d969b | 13228 | static int __intel_set_mode(struct drm_atomic_state *state) |
a6778b3c | 13229 | { |
c72d969b | 13230 | struct drm_device *dev = state->dev; |
fbee40df | 13231 | struct drm_i915_private *dev_priv = dev->dev_private; |
0a9ab303 ACO |
13232 | struct drm_crtc *crtc; |
13233 | struct drm_crtc_state *crtc_state; | |
c0c36b94 | 13234 | int ret = 0; |
0a9ab303 | 13235 | int i; |
61333b60 | 13236 | bool any_ms = false; |
a6778b3c | 13237 | |
d4afb8cc ACO |
13238 | ret = drm_atomic_helper_prepare_planes(dev, state); |
13239 | if (ret) | |
13240 | return ret; | |
13241 | ||
1c5e19f8 ML |
13242 | drm_atomic_helper_swap_state(dev, state); |
13243 | ||
0a9ab303 | 13244 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
a539205a ML |
13245 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
13246 | ||
61333b60 ML |
13247 | if (!needs_modeset(crtc->state)) |
13248 | continue; | |
13249 | ||
13250 | any_ms = true; | |
a539205a | 13251 | intel_pre_plane_update(intel_crtc); |
460da916 | 13252 | |
a539205a ML |
13253 | if (crtc_state->active) { |
13254 | intel_crtc_disable_planes(crtc, crtc_state->plane_mask); | |
13255 | dev_priv->display.crtc_disable(crtc); | |
eddfcbcd ML |
13256 | intel_crtc->active = false; |
13257 | intel_disable_shared_dpll(intel_crtc); | |
a539205a | 13258 | } |
b8cecdf5 | 13259 | } |
7758a113 | 13260 | |
ea9d758d DV |
13261 | /* Only after disabling all output pipelines that will be changed can we |
13262 | * update the the output configuration. */ | |
0a9ab303 | 13263 | intel_modeset_update_state(state); |
f6e5b160 | 13264 | |
a821fc46 ACO |
13265 | /* The state has been swaped above, so state actually contains the |
13266 | * old state now. */ | |
61333b60 ML |
13267 | if (any_ms) |
13268 | modeset_update_crtc_power_domains(state); | |
47fab737 | 13269 | |
a6778b3c | 13270 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ |
0a9ab303 | 13271 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
a539205a ML |
13272 | if (needs_modeset(crtc->state) && crtc->state->active) { |
13273 | update_scanline_offset(to_intel_crtc(crtc)); | |
13274 | dev_priv->display.crtc_enable(crtc); | |
13275 | } | |
80715b2f | 13276 | |
a539205a | 13277 | drm_atomic_helper_commit_planes_on_crtc(crtc_state); |
80715b2f | 13278 | } |
a6778b3c | 13279 | |
a6778b3c | 13280 | /* FIXME: add subpixel order */ |
83a57153 | 13281 | |
d4afb8cc ACO |
13282 | drm_atomic_helper_cleanup_planes(dev, state); |
13283 | ||
2bfb4627 ACO |
13284 | drm_atomic_state_free(state); |
13285 | ||
9eb45f22 | 13286 | return 0; |
f6e5b160 CW |
13287 | } |
13288 | ||
568c634a | 13289 | static int intel_set_mode_checked(struct drm_atomic_state *state) |
f30da187 | 13290 | { |
568c634a | 13291 | struct drm_device *dev = state->dev; |
f30da187 DV |
13292 | int ret; |
13293 | ||
568c634a | 13294 | ret = __intel_set_mode(state); |
f30da187 | 13295 | if (ret == 0) |
568c634a | 13296 | intel_modeset_check_state(dev); |
f30da187 DV |
13297 | |
13298 | return ret; | |
13299 | } | |
13300 | ||
568c634a | 13301 | static int intel_set_mode(struct drm_atomic_state *state) |
7f27126e | 13302 | { |
568c634a | 13303 | int ret; |
83a57153 | 13304 | |
568c634a | 13305 | ret = intel_modeset_compute_config(state); |
83a57153 | 13306 | if (ret) |
568c634a | 13307 | return ret; |
7f27126e | 13308 | |
568c634a | 13309 | return intel_set_mode_checked(state); |
7f27126e JB |
13310 | } |
13311 | ||
c0c36b94 CW |
13312 | void intel_crtc_restore_mode(struct drm_crtc *crtc) |
13313 | { | |
83a57153 ACO |
13314 | struct drm_device *dev = crtc->dev; |
13315 | struct drm_atomic_state *state; | |
e694eb02 | 13316 | struct drm_crtc_state *crtc_state; |
2bfb4627 | 13317 | int ret; |
83a57153 ACO |
13318 | |
13319 | state = drm_atomic_state_alloc(dev); | |
13320 | if (!state) { | |
e694eb02 | 13321 | DRM_DEBUG_KMS("[CRTC:%d] crtc restore failed, out of memory", |
83a57153 ACO |
13322 | crtc->base.id); |
13323 | return; | |
13324 | } | |
13325 | ||
e694eb02 | 13326 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); |
83a57153 | 13327 | |
e694eb02 ML |
13328 | retry: |
13329 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
13330 | ret = PTR_ERR_OR_ZERO(crtc_state); | |
13331 | if (!ret) { | |
13332 | if (!crtc_state->active) | |
13333 | goto out; | |
83a57153 | 13334 | |
e694eb02 ML |
13335 | crtc_state->mode_changed = true; |
13336 | ret = intel_set_mode(state); | |
83a57153 ACO |
13337 | } |
13338 | ||
e694eb02 ML |
13339 | if (ret == -EDEADLK) { |
13340 | drm_atomic_state_clear(state); | |
13341 | drm_modeset_backoff(state->acquire_ctx); | |
13342 | goto retry; | |
4ed9fb37 | 13343 | } |
4be07317 | 13344 | |
2bfb4627 | 13345 | if (ret) |
e694eb02 | 13346 | out: |
2bfb4627 | 13347 | drm_atomic_state_free(state); |
c0c36b94 CW |
13348 | } |
13349 | ||
25c5b266 DV |
13350 | #undef for_each_intel_crtc_masked |
13351 | ||
b7885264 ACO |
13352 | static bool intel_connector_in_mode_set(struct intel_connector *connector, |
13353 | struct drm_mode_set *set) | |
13354 | { | |
13355 | int ro; | |
13356 | ||
13357 | for (ro = 0; ro < set->num_connectors; ro++) | |
13358 | if (set->connectors[ro] == &connector->base) | |
13359 | return true; | |
13360 | ||
13361 | return false; | |
13362 | } | |
13363 | ||
2e431051 | 13364 | static int |
9a935856 DV |
13365 | intel_modeset_stage_output_state(struct drm_device *dev, |
13366 | struct drm_mode_set *set, | |
944b0c76 | 13367 | struct drm_atomic_state *state) |
50f56119 | 13368 | { |
9a935856 | 13369 | struct intel_connector *connector; |
d5432a9d | 13370 | struct drm_connector *drm_connector; |
944b0c76 | 13371 | struct drm_connector_state *connector_state; |
d5432a9d ACO |
13372 | struct drm_crtc *crtc; |
13373 | struct drm_crtc_state *crtc_state; | |
13374 | int i, ret; | |
50f56119 | 13375 | |
9abdda74 | 13376 | /* The upper layers ensure that we either disable a crtc or have a list |
9a935856 DV |
13377 | * of connectors. For paranoia, double-check this. */ |
13378 | WARN_ON(!set->fb && (set->num_connectors != 0)); | |
13379 | WARN_ON(set->fb && (set->num_connectors == 0)); | |
13380 | ||
3a3371ff | 13381 | for_each_intel_connector(dev, connector) { |
b7885264 ACO |
13382 | bool in_mode_set = intel_connector_in_mode_set(connector, set); |
13383 | ||
d5432a9d ACO |
13384 | if (!in_mode_set && connector->base.state->crtc != set->crtc) |
13385 | continue; | |
13386 | ||
13387 | connector_state = | |
13388 | drm_atomic_get_connector_state(state, &connector->base); | |
13389 | if (IS_ERR(connector_state)) | |
13390 | return PTR_ERR(connector_state); | |
13391 | ||
b7885264 ACO |
13392 | if (in_mode_set) { |
13393 | int pipe = to_intel_crtc(set->crtc)->pipe; | |
d5432a9d ACO |
13394 | connector_state->best_encoder = |
13395 | &intel_find_encoder(connector, pipe)->base; | |
50f56119 DV |
13396 | } |
13397 | ||
d5432a9d | 13398 | if (connector->base.state->crtc != set->crtc) |
b7885264 ACO |
13399 | continue; |
13400 | ||
9a935856 DV |
13401 | /* If we disable the crtc, disable all its connectors. Also, if |
13402 | * the connector is on the changing crtc but not on the new | |
13403 | * connector list, disable it. */ | |
b7885264 | 13404 | if (!set->fb || !in_mode_set) { |
d5432a9d | 13405 | connector_state->best_encoder = NULL; |
9a935856 DV |
13406 | |
13407 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", | |
13408 | connector->base.base.id, | |
c23cc417 | 13409 | connector->base.name); |
9a935856 | 13410 | } |
50f56119 | 13411 | } |
9a935856 | 13412 | /* connector->new_encoder is now updated for all connectors. */ |
50f56119 | 13413 | |
d5432a9d ACO |
13414 | for_each_connector_in_state(state, drm_connector, connector_state, i) { |
13415 | connector = to_intel_connector(drm_connector); | |
13416 | ||
13417 | if (!connector_state->best_encoder) { | |
13418 | ret = drm_atomic_set_crtc_for_connector(connector_state, | |
13419 | NULL); | |
13420 | if (ret) | |
13421 | return ret; | |
7668851f | 13422 | |
50f56119 | 13423 | continue; |
d5432a9d | 13424 | } |
50f56119 | 13425 | |
d5432a9d ACO |
13426 | if (intel_connector_in_mode_set(connector, set)) { |
13427 | struct drm_crtc *crtc = connector->base.state->crtc; | |
13428 | ||
13429 | /* If this connector was in a previous crtc, add it | |
13430 | * to the state. We might need to disable it. */ | |
13431 | if (crtc) { | |
13432 | crtc_state = | |
13433 | drm_atomic_get_crtc_state(state, crtc); | |
13434 | if (IS_ERR(crtc_state)) | |
13435 | return PTR_ERR(crtc_state); | |
13436 | } | |
13437 | ||
13438 | ret = drm_atomic_set_crtc_for_connector(connector_state, | |
13439 | set->crtc); | |
13440 | if (ret) | |
13441 | return ret; | |
13442 | } | |
50f56119 DV |
13443 | |
13444 | /* Make sure the new CRTC will work with the encoder */ | |
d5432a9d ACO |
13445 | if (!drm_encoder_crtc_ok(connector_state->best_encoder, |
13446 | connector_state->crtc)) { | |
5e2b584e | 13447 | return -EINVAL; |
50f56119 | 13448 | } |
944b0c76 | 13449 | |
9a935856 DV |
13450 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", |
13451 | connector->base.base.id, | |
c23cc417 | 13452 | connector->base.name, |
d5432a9d | 13453 | connector_state->crtc->base.id); |
944b0c76 | 13454 | |
d5432a9d ACO |
13455 | if (connector_state->best_encoder != &connector->encoder->base) |
13456 | connector->encoder = | |
13457 | to_intel_encoder(connector_state->best_encoder); | |
0e32b39c | 13458 | } |
7668851f | 13459 | |
d5432a9d | 13460 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
49d6fa21 ML |
13461 | bool has_connectors; |
13462 | ||
d5432a9d ACO |
13463 | ret = drm_atomic_add_affected_connectors(state, crtc); |
13464 | if (ret) | |
13465 | return ret; | |
4be07317 | 13466 | |
49d6fa21 ML |
13467 | has_connectors = !!drm_atomic_connectors_for_crtc(state, crtc); |
13468 | if (has_connectors != crtc_state->enable) | |
13469 | crtc_state->enable = | |
13470 | crtc_state->active = has_connectors; | |
7668851f VS |
13471 | } |
13472 | ||
8c7b5ccb ACO |
13473 | ret = intel_modeset_setup_plane_state(state, set->crtc, set->mode, |
13474 | set->fb, set->x, set->y); | |
13475 | if (ret) | |
13476 | return ret; | |
13477 | ||
13478 | crtc_state = drm_atomic_get_crtc_state(state, set->crtc); | |
13479 | if (IS_ERR(crtc_state)) | |
13480 | return PTR_ERR(crtc_state); | |
13481 | ||
ce52299c MR |
13482 | ret = drm_atomic_set_mode_for_crtc(crtc_state, set->mode); |
13483 | if (ret) | |
13484 | return ret; | |
8c7b5ccb ACO |
13485 | |
13486 | if (set->num_connectors) | |
13487 | crtc_state->active = true; | |
13488 | ||
2e431051 DV |
13489 | return 0; |
13490 | } | |
13491 | ||
13492 | static int intel_crtc_set_config(struct drm_mode_set *set) | |
13493 | { | |
13494 | struct drm_device *dev; | |
83a57153 | 13495 | struct drm_atomic_state *state = NULL; |
2e431051 | 13496 | int ret; |
2e431051 | 13497 | |
8d3e375e DV |
13498 | BUG_ON(!set); |
13499 | BUG_ON(!set->crtc); | |
13500 | BUG_ON(!set->crtc->helper_private); | |
2e431051 | 13501 | |
7e53f3a4 DV |
13502 | /* Enforce sane interface api - has been abused by the fb helper. */ |
13503 | BUG_ON(!set->mode && set->fb); | |
13504 | BUG_ON(set->fb && set->num_connectors == 0); | |
431e50f7 | 13505 | |
2e431051 DV |
13506 | if (set->fb) { |
13507 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", | |
13508 | set->crtc->base.id, set->fb->base.id, | |
13509 | (int)set->num_connectors, set->x, set->y); | |
13510 | } else { | |
13511 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); | |
2e431051 DV |
13512 | } |
13513 | ||
13514 | dev = set->crtc->dev; | |
13515 | ||
83a57153 | 13516 | state = drm_atomic_state_alloc(dev); |
7cbf41d6 ACO |
13517 | if (!state) |
13518 | return -ENOMEM; | |
83a57153 ACO |
13519 | |
13520 | state->acquire_ctx = dev->mode_config.acquire_ctx; | |
13521 | ||
462a425a | 13522 | ret = intel_modeset_stage_output_state(dev, set, state); |
2e431051 | 13523 | if (ret) |
7cbf41d6 | 13524 | goto out; |
2e431051 | 13525 | |
568c634a ACO |
13526 | ret = intel_modeset_compute_config(state); |
13527 | if (ret) | |
7cbf41d6 | 13528 | goto out; |
50f52756 | 13529 | |
1f9954d0 JB |
13530 | intel_update_pipe_size(to_intel_crtc(set->crtc)); |
13531 | ||
568c634a | 13532 | ret = intel_set_mode_checked(state); |
2d05eae1 | 13533 | if (ret) { |
bf67dfeb DV |
13534 | DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n", |
13535 | set->crtc->base.id, ret); | |
2d05eae1 | 13536 | } |
50f56119 | 13537 | |
7cbf41d6 | 13538 | out: |
2bfb4627 ACO |
13539 | if (ret) |
13540 | drm_atomic_state_free(state); | |
50f56119 DV |
13541 | return ret; |
13542 | } | |
f6e5b160 CW |
13543 | |
13544 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
f6e5b160 | 13545 | .gamma_set = intel_crtc_gamma_set, |
50f56119 | 13546 | .set_config = intel_crtc_set_config, |
f6e5b160 CW |
13547 | .destroy = intel_crtc_destroy, |
13548 | .page_flip = intel_crtc_page_flip, | |
1356837e MR |
13549 | .atomic_duplicate_state = intel_crtc_duplicate_state, |
13550 | .atomic_destroy_state = intel_crtc_destroy_state, | |
f6e5b160 CW |
13551 | }; |
13552 | ||
5358901f DV |
13553 | static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv, |
13554 | struct intel_shared_dpll *pll, | |
13555 | struct intel_dpll_hw_state *hw_state) | |
ee7b9f93 | 13556 | { |
5358901f | 13557 | uint32_t val; |
ee7b9f93 | 13558 | |
f458ebbc | 13559 | if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PLLS)) |
bd2bb1b9 PZ |
13560 | return false; |
13561 | ||
5358901f | 13562 | val = I915_READ(PCH_DPLL(pll->id)); |
66e985c0 DV |
13563 | hw_state->dpll = val; |
13564 | hw_state->fp0 = I915_READ(PCH_FP0(pll->id)); | |
13565 | hw_state->fp1 = I915_READ(PCH_FP1(pll->id)); | |
5358901f DV |
13566 | |
13567 | return val & DPLL_VCO_ENABLE; | |
13568 | } | |
13569 | ||
15bdd4cf DV |
13570 | static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv, |
13571 | struct intel_shared_dpll *pll) | |
13572 | { | |
3e369b76 ACO |
13573 | I915_WRITE(PCH_FP0(pll->id), pll->config.hw_state.fp0); |
13574 | I915_WRITE(PCH_FP1(pll->id), pll->config.hw_state.fp1); | |
15bdd4cf DV |
13575 | } |
13576 | ||
e7b903d2 DV |
13577 | static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv, |
13578 | struct intel_shared_dpll *pll) | |
13579 | { | |
e7b903d2 | 13580 | /* PCH refclock must be enabled first */ |
89eff4be | 13581 | ibx_assert_pch_refclk_enabled(dev_priv); |
e7b903d2 | 13582 | |
3e369b76 | 13583 | I915_WRITE(PCH_DPLL(pll->id), pll->config.hw_state.dpll); |
15bdd4cf DV |
13584 | |
13585 | /* Wait for the clocks to stabilize. */ | |
13586 | POSTING_READ(PCH_DPLL(pll->id)); | |
13587 | udelay(150); | |
13588 | ||
13589 | /* The pixel multiplier can only be updated once the | |
13590 | * DPLL is enabled and the clocks are stable. | |
13591 | * | |
13592 | * So write it again. | |
13593 | */ | |
3e369b76 | 13594 | I915_WRITE(PCH_DPLL(pll->id), pll->config.hw_state.dpll); |
15bdd4cf | 13595 | POSTING_READ(PCH_DPLL(pll->id)); |
e7b903d2 DV |
13596 | udelay(200); |
13597 | } | |
13598 | ||
13599 | static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv, | |
13600 | struct intel_shared_dpll *pll) | |
13601 | { | |
13602 | struct drm_device *dev = dev_priv->dev; | |
13603 | struct intel_crtc *crtc; | |
e7b903d2 DV |
13604 | |
13605 | /* Make sure no transcoder isn't still depending on us. */ | |
d3fcc808 | 13606 | for_each_intel_crtc(dev, crtc) { |
e7b903d2 DV |
13607 | if (intel_crtc_to_shared_dpll(crtc) == pll) |
13608 | assert_pch_transcoder_disabled(dev_priv, crtc->pipe); | |
ee7b9f93 JB |
13609 | } |
13610 | ||
15bdd4cf DV |
13611 | I915_WRITE(PCH_DPLL(pll->id), 0); |
13612 | POSTING_READ(PCH_DPLL(pll->id)); | |
e7b903d2 DV |
13613 | udelay(200); |
13614 | } | |
13615 | ||
46edb027 DV |
13616 | static char *ibx_pch_dpll_names[] = { |
13617 | "PCH DPLL A", | |
13618 | "PCH DPLL B", | |
13619 | }; | |
13620 | ||
7c74ade1 | 13621 | static void ibx_pch_dpll_init(struct drm_device *dev) |
ee7b9f93 | 13622 | { |
e7b903d2 | 13623 | struct drm_i915_private *dev_priv = dev->dev_private; |
ee7b9f93 JB |
13624 | int i; |
13625 | ||
7c74ade1 | 13626 | dev_priv->num_shared_dpll = 2; |
ee7b9f93 | 13627 | |
e72f9fbf | 13628 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
46edb027 DV |
13629 | dev_priv->shared_dplls[i].id = i; |
13630 | dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i]; | |
15bdd4cf | 13631 | dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set; |
e7b903d2 DV |
13632 | dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable; |
13633 | dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable; | |
5358901f DV |
13634 | dev_priv->shared_dplls[i].get_hw_state = |
13635 | ibx_pch_dpll_get_hw_state; | |
ee7b9f93 JB |
13636 | } |
13637 | } | |
13638 | ||
7c74ade1 DV |
13639 | static void intel_shared_dpll_init(struct drm_device *dev) |
13640 | { | |
e7b903d2 | 13641 | struct drm_i915_private *dev_priv = dev->dev_private; |
7c74ade1 | 13642 | |
b6283055 VS |
13643 | intel_update_cdclk(dev); |
13644 | ||
9cd86933 DV |
13645 | if (HAS_DDI(dev)) |
13646 | intel_ddi_pll_init(dev); | |
13647 | else if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
7c74ade1 DV |
13648 | ibx_pch_dpll_init(dev); |
13649 | else | |
13650 | dev_priv->num_shared_dpll = 0; | |
13651 | ||
13652 | BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS); | |
7c74ade1 DV |
13653 | } |
13654 | ||
6beb8c23 MR |
13655 | /** |
13656 | * intel_prepare_plane_fb - Prepare fb for usage on plane | |
13657 | * @plane: drm plane to prepare for | |
13658 | * @fb: framebuffer to prepare for presentation | |
13659 | * | |
13660 | * Prepares a framebuffer for usage on a display plane. Generally this | |
13661 | * involves pinning the underlying object and updating the frontbuffer tracking | |
13662 | * bits. Some older platforms need special physical address handling for | |
13663 | * cursor planes. | |
13664 | * | |
13665 | * Returns 0 on success, negative error code on failure. | |
13666 | */ | |
13667 | int | |
13668 | intel_prepare_plane_fb(struct drm_plane *plane, | |
d136dfee TU |
13669 | struct drm_framebuffer *fb, |
13670 | const struct drm_plane_state *new_state) | |
465c120c MR |
13671 | { |
13672 | struct drm_device *dev = plane->dev; | |
6beb8c23 | 13673 | struct intel_plane *intel_plane = to_intel_plane(plane); |
6beb8c23 MR |
13674 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
13675 | struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->fb); | |
6beb8c23 | 13676 | int ret = 0; |
465c120c | 13677 | |
ea2c67bb | 13678 | if (!obj) |
465c120c MR |
13679 | return 0; |
13680 | ||
6beb8c23 | 13681 | mutex_lock(&dev->struct_mutex); |
465c120c | 13682 | |
6beb8c23 MR |
13683 | if (plane->type == DRM_PLANE_TYPE_CURSOR && |
13684 | INTEL_INFO(dev)->cursor_needs_physical) { | |
13685 | int align = IS_I830(dev) ? 16 * 1024 : 256; | |
13686 | ret = i915_gem_object_attach_phys(obj, align); | |
13687 | if (ret) | |
13688 | DRM_DEBUG_KMS("failed to attach phys object\n"); | |
13689 | } else { | |
91af127f | 13690 | ret = intel_pin_and_fence_fb_obj(plane, fb, new_state, NULL, NULL); |
6beb8c23 | 13691 | } |
465c120c | 13692 | |
6beb8c23 | 13693 | if (ret == 0) |
a9ff8714 | 13694 | i915_gem_track_fb(old_obj, obj, intel_plane->frontbuffer_bit); |
fdd508a6 | 13695 | |
4c34574f | 13696 | mutex_unlock(&dev->struct_mutex); |
465c120c | 13697 | |
6beb8c23 MR |
13698 | return ret; |
13699 | } | |
13700 | ||
38f3ce3a MR |
13701 | /** |
13702 | * intel_cleanup_plane_fb - Cleans up an fb after plane use | |
13703 | * @plane: drm plane to clean up for | |
13704 | * @fb: old framebuffer that was on plane | |
13705 | * | |
13706 | * Cleans up a framebuffer that has just been removed from a plane. | |
13707 | */ | |
13708 | void | |
13709 | intel_cleanup_plane_fb(struct drm_plane *plane, | |
d136dfee TU |
13710 | struct drm_framebuffer *fb, |
13711 | const struct drm_plane_state *old_state) | |
38f3ce3a MR |
13712 | { |
13713 | struct drm_device *dev = plane->dev; | |
13714 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
13715 | ||
13716 | if (WARN_ON(!obj)) | |
13717 | return; | |
13718 | ||
13719 | if (plane->type != DRM_PLANE_TYPE_CURSOR || | |
13720 | !INTEL_INFO(dev)->cursor_needs_physical) { | |
13721 | mutex_lock(&dev->struct_mutex); | |
82bc3b2d | 13722 | intel_unpin_fb_obj(fb, old_state); |
38f3ce3a MR |
13723 | mutex_unlock(&dev->struct_mutex); |
13724 | } | |
465c120c MR |
13725 | } |
13726 | ||
6156a456 CK |
13727 | int |
13728 | skl_max_scale(struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state) | |
13729 | { | |
13730 | int max_scale; | |
13731 | struct drm_device *dev; | |
13732 | struct drm_i915_private *dev_priv; | |
13733 | int crtc_clock, cdclk; | |
13734 | ||
13735 | if (!intel_crtc || !crtc_state) | |
13736 | return DRM_PLANE_HELPER_NO_SCALING; | |
13737 | ||
13738 | dev = intel_crtc->base.dev; | |
13739 | dev_priv = dev->dev_private; | |
13740 | crtc_clock = crtc_state->base.adjusted_mode.crtc_clock; | |
27c329ed | 13741 | cdclk = to_intel_atomic_state(crtc_state->base.state)->cdclk; |
6156a456 CK |
13742 | |
13743 | if (!crtc_clock || !cdclk) | |
13744 | return DRM_PLANE_HELPER_NO_SCALING; | |
13745 | ||
13746 | /* | |
13747 | * skl max scale is lower of: | |
13748 | * close to 3 but not 3, -1 is for that purpose | |
13749 | * or | |
13750 | * cdclk/crtc_clock | |
13751 | */ | |
13752 | max_scale = min((1 << 16) * 3 - 1, (1 << 8) * ((cdclk << 8) / crtc_clock)); | |
13753 | ||
13754 | return max_scale; | |
13755 | } | |
13756 | ||
465c120c | 13757 | static int |
3c692a41 | 13758 | intel_check_primary_plane(struct drm_plane *plane, |
061e4b8d | 13759 | struct intel_crtc_state *crtc_state, |
3c692a41 GP |
13760 | struct intel_plane_state *state) |
13761 | { | |
2b875c22 MR |
13762 | struct drm_crtc *crtc = state->base.crtc; |
13763 | struct drm_framebuffer *fb = state->base.fb; | |
6156a456 | 13764 | int min_scale = DRM_PLANE_HELPER_NO_SCALING; |
061e4b8d ML |
13765 | int max_scale = DRM_PLANE_HELPER_NO_SCALING; |
13766 | bool can_position = false; | |
465c120c | 13767 | |
061e4b8d ML |
13768 | /* use scaler when colorkey is not required */ |
13769 | if (INTEL_INFO(plane->dev)->gen >= 9 && | |
818ed961 | 13770 | state->ckey.flags == I915_SET_COLORKEY_NONE) { |
061e4b8d ML |
13771 | min_scale = 1; |
13772 | max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state); | |
d8106366 | 13773 | can_position = true; |
6156a456 | 13774 | } |
d8106366 | 13775 | |
061e4b8d ML |
13776 | return drm_plane_helper_check_update(plane, crtc, fb, &state->src, |
13777 | &state->dst, &state->clip, | |
da20eabd ML |
13778 | min_scale, max_scale, |
13779 | can_position, true, | |
13780 | &state->visible); | |
14af293f GP |
13781 | } |
13782 | ||
13783 | static void | |
13784 | intel_commit_primary_plane(struct drm_plane *plane, | |
13785 | struct intel_plane_state *state) | |
13786 | { | |
2b875c22 MR |
13787 | struct drm_crtc *crtc = state->base.crtc; |
13788 | struct drm_framebuffer *fb = state->base.fb; | |
13789 | struct drm_device *dev = plane->dev; | |
14af293f | 13790 | struct drm_i915_private *dev_priv = dev->dev_private; |
ea2c67bb | 13791 | struct intel_crtc *intel_crtc; |
14af293f GP |
13792 | struct drm_rect *src = &state->src; |
13793 | ||
ea2c67bb MR |
13794 | crtc = crtc ? crtc : plane->crtc; |
13795 | intel_crtc = to_intel_crtc(crtc); | |
cf4c7c12 MR |
13796 | |
13797 | plane->fb = fb; | |
9dc806fc MR |
13798 | crtc->x = src->x1 >> 16; |
13799 | crtc->y = src->y1 >> 16; | |
ccc759dc | 13800 | |
a539205a | 13801 | if (!crtc->state->active) |
302d19ac | 13802 | return; |
465c120c | 13803 | |
302d19ac ML |
13804 | if (state->visible) |
13805 | /* FIXME: kill this fastboot hack */ | |
13806 | intel_update_pipe_size(intel_crtc); | |
13807 | ||
13808 | dev_priv->display.update_primary_plane(crtc, fb, crtc->x, crtc->y); | |
465c120c MR |
13809 | } |
13810 | ||
a8ad0d8e ML |
13811 | static void |
13812 | intel_disable_primary_plane(struct drm_plane *plane, | |
7fabf5ef | 13813 | struct drm_crtc *crtc) |
a8ad0d8e ML |
13814 | { |
13815 | struct drm_device *dev = plane->dev; | |
13816 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13817 | ||
a8ad0d8e ML |
13818 | dev_priv->display.update_primary_plane(crtc, NULL, 0, 0); |
13819 | } | |
13820 | ||
32b7eeec | 13821 | static void intel_begin_crtc_commit(struct drm_crtc *crtc) |
3c692a41 | 13822 | { |
32b7eeec | 13823 | struct drm_device *dev = crtc->dev; |
140fd38d | 13824 | struct drm_i915_private *dev_priv = dev->dev_private; |
3c692a41 | 13825 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3c692a41 | 13826 | |
a539205a ML |
13827 | if (!needs_modeset(crtc->state)) |
13828 | intel_pre_plane_update(intel_crtc); | |
3c692a41 | 13829 | |
f015c551 | 13830 | if (intel_crtc->atomic.update_wm_pre) |
32b7eeec | 13831 | intel_update_watermarks(crtc); |
3c692a41 | 13832 | |
32b7eeec | 13833 | intel_runtime_pm_get(dev_priv); |
3c692a41 | 13834 | |
c34c9ee4 | 13835 | /* Perform vblank evasion around commit operation */ |
a539205a | 13836 | if (crtc->state->active) |
c34c9ee4 MR |
13837 | intel_crtc->atomic.evade = |
13838 | intel_pipe_update_start(intel_crtc, | |
13839 | &intel_crtc->atomic.start_vbl_count); | |
0583236e ML |
13840 | |
13841 | if (!needs_modeset(crtc->state) && INTEL_INFO(dev)->gen >= 9) | |
13842 | skl_detach_scalers(intel_crtc); | |
32b7eeec MR |
13843 | } |
13844 | ||
13845 | static void intel_finish_crtc_commit(struct drm_crtc *crtc) | |
13846 | { | |
13847 | struct drm_device *dev = crtc->dev; | |
13848 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13849 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
32b7eeec | 13850 | |
c34c9ee4 MR |
13851 | if (intel_crtc->atomic.evade) |
13852 | intel_pipe_update_end(intel_crtc, | |
13853 | intel_crtc->atomic.start_vbl_count); | |
3c692a41 | 13854 | |
140fd38d | 13855 | intel_runtime_pm_put(dev_priv); |
3c692a41 | 13856 | |
ac21b225 | 13857 | intel_post_plane_update(intel_crtc); |
3c692a41 GP |
13858 | } |
13859 | ||
cf4c7c12 | 13860 | /** |
4a3b8769 MR |
13861 | * intel_plane_destroy - destroy a plane |
13862 | * @plane: plane to destroy | |
cf4c7c12 | 13863 | * |
4a3b8769 MR |
13864 | * Common destruction function for all types of planes (primary, cursor, |
13865 | * sprite). | |
cf4c7c12 | 13866 | */ |
4a3b8769 | 13867 | void intel_plane_destroy(struct drm_plane *plane) |
465c120c MR |
13868 | { |
13869 | struct intel_plane *intel_plane = to_intel_plane(plane); | |
13870 | drm_plane_cleanup(plane); | |
13871 | kfree(intel_plane); | |
13872 | } | |
13873 | ||
65a3fea0 | 13874 | const struct drm_plane_funcs intel_plane_funcs = { |
70a101f8 MR |
13875 | .update_plane = drm_atomic_helper_update_plane, |
13876 | .disable_plane = drm_atomic_helper_disable_plane, | |
3d7d6510 | 13877 | .destroy = intel_plane_destroy, |
c196e1d6 | 13878 | .set_property = drm_atomic_helper_plane_set_property, |
a98b3431 MR |
13879 | .atomic_get_property = intel_plane_atomic_get_property, |
13880 | .atomic_set_property = intel_plane_atomic_set_property, | |
ea2c67bb MR |
13881 | .atomic_duplicate_state = intel_plane_duplicate_state, |
13882 | .atomic_destroy_state = intel_plane_destroy_state, | |
13883 | ||
465c120c MR |
13884 | }; |
13885 | ||
13886 | static struct drm_plane *intel_primary_plane_create(struct drm_device *dev, | |
13887 | int pipe) | |
13888 | { | |
13889 | struct intel_plane *primary; | |
8e7d688b | 13890 | struct intel_plane_state *state; |
465c120c MR |
13891 | const uint32_t *intel_primary_formats; |
13892 | int num_formats; | |
13893 | ||
13894 | primary = kzalloc(sizeof(*primary), GFP_KERNEL); | |
13895 | if (primary == NULL) | |
13896 | return NULL; | |
13897 | ||
8e7d688b MR |
13898 | state = intel_create_plane_state(&primary->base); |
13899 | if (!state) { | |
ea2c67bb MR |
13900 | kfree(primary); |
13901 | return NULL; | |
13902 | } | |
8e7d688b | 13903 | primary->base.state = &state->base; |
ea2c67bb | 13904 | |
465c120c MR |
13905 | primary->can_scale = false; |
13906 | primary->max_downscale = 1; | |
6156a456 CK |
13907 | if (INTEL_INFO(dev)->gen >= 9) { |
13908 | primary->can_scale = true; | |
af99ceda | 13909 | state->scaler_id = -1; |
6156a456 | 13910 | } |
465c120c MR |
13911 | primary->pipe = pipe; |
13912 | primary->plane = pipe; | |
a9ff8714 | 13913 | primary->frontbuffer_bit = INTEL_FRONTBUFFER_PRIMARY(pipe); |
c59cb179 MR |
13914 | primary->check_plane = intel_check_primary_plane; |
13915 | primary->commit_plane = intel_commit_primary_plane; | |
a8ad0d8e | 13916 | primary->disable_plane = intel_disable_primary_plane; |
465c120c MR |
13917 | if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) |
13918 | primary->plane = !pipe; | |
13919 | ||
6c0fd451 DL |
13920 | if (INTEL_INFO(dev)->gen >= 9) { |
13921 | intel_primary_formats = skl_primary_formats; | |
13922 | num_formats = ARRAY_SIZE(skl_primary_formats); | |
13923 | } else if (INTEL_INFO(dev)->gen >= 4) { | |
568db4f2 DL |
13924 | intel_primary_formats = i965_primary_formats; |
13925 | num_formats = ARRAY_SIZE(i965_primary_formats); | |
6c0fd451 DL |
13926 | } else { |
13927 | intel_primary_formats = i8xx_primary_formats; | |
13928 | num_formats = ARRAY_SIZE(i8xx_primary_formats); | |
465c120c MR |
13929 | } |
13930 | ||
13931 | drm_universal_plane_init(dev, &primary->base, 0, | |
65a3fea0 | 13932 | &intel_plane_funcs, |
465c120c MR |
13933 | intel_primary_formats, num_formats, |
13934 | DRM_PLANE_TYPE_PRIMARY); | |
48404c1e | 13935 | |
3b7a5119 SJ |
13936 | if (INTEL_INFO(dev)->gen >= 4) |
13937 | intel_create_rotation_property(dev, primary); | |
48404c1e | 13938 | |
ea2c67bb MR |
13939 | drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs); |
13940 | ||
465c120c MR |
13941 | return &primary->base; |
13942 | } | |
13943 | ||
3b7a5119 SJ |
13944 | void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane) |
13945 | { | |
13946 | if (!dev->mode_config.rotation_property) { | |
13947 | unsigned long flags = BIT(DRM_ROTATE_0) | | |
13948 | BIT(DRM_ROTATE_180); | |
13949 | ||
13950 | if (INTEL_INFO(dev)->gen >= 9) | |
13951 | flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270); | |
13952 | ||
13953 | dev->mode_config.rotation_property = | |
13954 | drm_mode_create_rotation_property(dev, flags); | |
13955 | } | |
13956 | if (dev->mode_config.rotation_property) | |
13957 | drm_object_attach_property(&plane->base.base, | |
13958 | dev->mode_config.rotation_property, | |
13959 | plane->base.state->rotation); | |
13960 | } | |
13961 | ||
3d7d6510 | 13962 | static int |
852e787c | 13963 | intel_check_cursor_plane(struct drm_plane *plane, |
061e4b8d | 13964 | struct intel_crtc_state *crtc_state, |
852e787c | 13965 | struct intel_plane_state *state) |
3d7d6510 | 13966 | { |
061e4b8d | 13967 | struct drm_crtc *crtc = crtc_state->base.crtc; |
2b875c22 | 13968 | struct drm_framebuffer *fb = state->base.fb; |
757f9a3e | 13969 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
757f9a3e GP |
13970 | unsigned stride; |
13971 | int ret; | |
3d7d6510 | 13972 | |
061e4b8d ML |
13973 | ret = drm_plane_helper_check_update(plane, crtc, fb, &state->src, |
13974 | &state->dst, &state->clip, | |
3d7d6510 MR |
13975 | DRM_PLANE_HELPER_NO_SCALING, |
13976 | DRM_PLANE_HELPER_NO_SCALING, | |
852e787c | 13977 | true, true, &state->visible); |
757f9a3e GP |
13978 | if (ret) |
13979 | return ret; | |
13980 | ||
757f9a3e GP |
13981 | /* if we want to turn off the cursor ignore width and height */ |
13982 | if (!obj) | |
da20eabd | 13983 | return 0; |
757f9a3e | 13984 | |
757f9a3e | 13985 | /* Check for which cursor types we support */ |
061e4b8d | 13986 | if (!cursor_size_ok(plane->dev, state->base.crtc_w, state->base.crtc_h)) { |
ea2c67bb MR |
13987 | DRM_DEBUG("Cursor dimension %dx%d not supported\n", |
13988 | state->base.crtc_w, state->base.crtc_h); | |
757f9a3e GP |
13989 | return -EINVAL; |
13990 | } | |
13991 | ||
ea2c67bb MR |
13992 | stride = roundup_pow_of_two(state->base.crtc_w) * 4; |
13993 | if (obj->base.size < stride * state->base.crtc_h) { | |
757f9a3e GP |
13994 | DRM_DEBUG_KMS("buffer is too small\n"); |
13995 | return -ENOMEM; | |
13996 | } | |
13997 | ||
3a656b54 | 13998 | if (fb->modifier[0] != DRM_FORMAT_MOD_NONE) { |
757f9a3e | 13999 | DRM_DEBUG_KMS("cursor cannot be tiled\n"); |
da20eabd | 14000 | return -EINVAL; |
32b7eeec MR |
14001 | } |
14002 | ||
da20eabd | 14003 | return 0; |
852e787c | 14004 | } |
3d7d6510 | 14005 | |
a8ad0d8e ML |
14006 | static void |
14007 | intel_disable_cursor_plane(struct drm_plane *plane, | |
7fabf5ef | 14008 | struct drm_crtc *crtc) |
a8ad0d8e | 14009 | { |
a8ad0d8e ML |
14010 | intel_crtc_update_cursor(crtc, false); |
14011 | } | |
14012 | ||
f4a2cf29 | 14013 | static void |
852e787c GP |
14014 | intel_commit_cursor_plane(struct drm_plane *plane, |
14015 | struct intel_plane_state *state) | |
14016 | { | |
2b875c22 | 14017 | struct drm_crtc *crtc = state->base.crtc; |
ea2c67bb MR |
14018 | struct drm_device *dev = plane->dev; |
14019 | struct intel_crtc *intel_crtc; | |
2b875c22 | 14020 | struct drm_i915_gem_object *obj = intel_fb_obj(state->base.fb); |
a912f12f | 14021 | uint32_t addr; |
852e787c | 14022 | |
ea2c67bb MR |
14023 | crtc = crtc ? crtc : plane->crtc; |
14024 | intel_crtc = to_intel_crtc(crtc); | |
14025 | ||
2b875c22 | 14026 | plane->fb = state->base.fb; |
ea2c67bb MR |
14027 | crtc->cursor_x = state->base.crtc_x; |
14028 | crtc->cursor_y = state->base.crtc_y; | |
14029 | ||
a912f12f GP |
14030 | if (intel_crtc->cursor_bo == obj) |
14031 | goto update; | |
4ed91096 | 14032 | |
f4a2cf29 | 14033 | if (!obj) |
a912f12f | 14034 | addr = 0; |
f4a2cf29 | 14035 | else if (!INTEL_INFO(dev)->cursor_needs_physical) |
a912f12f | 14036 | addr = i915_gem_obj_ggtt_offset(obj); |
f4a2cf29 | 14037 | else |
a912f12f | 14038 | addr = obj->phys_handle->busaddr; |
852e787c | 14039 | |
a912f12f GP |
14040 | intel_crtc->cursor_addr = addr; |
14041 | intel_crtc->cursor_bo = obj; | |
852e787c | 14042 | |
302d19ac | 14043 | update: |
a539205a | 14044 | if (crtc->state->active) |
a912f12f | 14045 | intel_crtc_update_cursor(crtc, state->visible); |
852e787c GP |
14046 | } |
14047 | ||
3d7d6510 MR |
14048 | static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev, |
14049 | int pipe) | |
14050 | { | |
14051 | struct intel_plane *cursor; | |
8e7d688b | 14052 | struct intel_plane_state *state; |
3d7d6510 MR |
14053 | |
14054 | cursor = kzalloc(sizeof(*cursor), GFP_KERNEL); | |
14055 | if (cursor == NULL) | |
14056 | return NULL; | |
14057 | ||
8e7d688b MR |
14058 | state = intel_create_plane_state(&cursor->base); |
14059 | if (!state) { | |
ea2c67bb MR |
14060 | kfree(cursor); |
14061 | return NULL; | |
14062 | } | |
8e7d688b | 14063 | cursor->base.state = &state->base; |
ea2c67bb | 14064 | |
3d7d6510 MR |
14065 | cursor->can_scale = false; |
14066 | cursor->max_downscale = 1; | |
14067 | cursor->pipe = pipe; | |
14068 | cursor->plane = pipe; | |
a9ff8714 | 14069 | cursor->frontbuffer_bit = INTEL_FRONTBUFFER_CURSOR(pipe); |
c59cb179 MR |
14070 | cursor->check_plane = intel_check_cursor_plane; |
14071 | cursor->commit_plane = intel_commit_cursor_plane; | |
a8ad0d8e | 14072 | cursor->disable_plane = intel_disable_cursor_plane; |
3d7d6510 MR |
14073 | |
14074 | drm_universal_plane_init(dev, &cursor->base, 0, | |
65a3fea0 | 14075 | &intel_plane_funcs, |
3d7d6510 MR |
14076 | intel_cursor_formats, |
14077 | ARRAY_SIZE(intel_cursor_formats), | |
14078 | DRM_PLANE_TYPE_CURSOR); | |
4398ad45 VS |
14079 | |
14080 | if (INTEL_INFO(dev)->gen >= 4) { | |
14081 | if (!dev->mode_config.rotation_property) | |
14082 | dev->mode_config.rotation_property = | |
14083 | drm_mode_create_rotation_property(dev, | |
14084 | BIT(DRM_ROTATE_0) | | |
14085 | BIT(DRM_ROTATE_180)); | |
14086 | if (dev->mode_config.rotation_property) | |
14087 | drm_object_attach_property(&cursor->base.base, | |
14088 | dev->mode_config.rotation_property, | |
8e7d688b | 14089 | state->base.rotation); |
4398ad45 VS |
14090 | } |
14091 | ||
af99ceda CK |
14092 | if (INTEL_INFO(dev)->gen >=9) |
14093 | state->scaler_id = -1; | |
14094 | ||
ea2c67bb MR |
14095 | drm_plane_helper_add(&cursor->base, &intel_plane_helper_funcs); |
14096 | ||
3d7d6510 MR |
14097 | return &cursor->base; |
14098 | } | |
14099 | ||
549e2bfb CK |
14100 | static void skl_init_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc, |
14101 | struct intel_crtc_state *crtc_state) | |
14102 | { | |
14103 | int i; | |
14104 | struct intel_scaler *intel_scaler; | |
14105 | struct intel_crtc_scaler_state *scaler_state = &crtc_state->scaler_state; | |
14106 | ||
14107 | for (i = 0; i < intel_crtc->num_scalers; i++) { | |
14108 | intel_scaler = &scaler_state->scalers[i]; | |
14109 | intel_scaler->in_use = 0; | |
549e2bfb CK |
14110 | intel_scaler->mode = PS_SCALER_MODE_DYN; |
14111 | } | |
14112 | ||
14113 | scaler_state->scaler_id = -1; | |
14114 | } | |
14115 | ||
b358d0a6 | 14116 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 14117 | { |
fbee40df | 14118 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 14119 | struct intel_crtc *intel_crtc; |
f5de6e07 | 14120 | struct intel_crtc_state *crtc_state = NULL; |
3d7d6510 MR |
14121 | struct drm_plane *primary = NULL; |
14122 | struct drm_plane *cursor = NULL; | |
465c120c | 14123 | int i, ret; |
79e53945 | 14124 | |
955382f3 | 14125 | intel_crtc = kzalloc(sizeof(*intel_crtc), GFP_KERNEL); |
79e53945 JB |
14126 | if (intel_crtc == NULL) |
14127 | return; | |
14128 | ||
f5de6e07 ACO |
14129 | crtc_state = kzalloc(sizeof(*crtc_state), GFP_KERNEL); |
14130 | if (!crtc_state) | |
14131 | goto fail; | |
550acefd ACO |
14132 | intel_crtc->config = crtc_state; |
14133 | intel_crtc->base.state = &crtc_state->base; | |
07878248 | 14134 | crtc_state->base.crtc = &intel_crtc->base; |
f5de6e07 | 14135 | |
549e2bfb CK |
14136 | /* initialize shared scalers */ |
14137 | if (INTEL_INFO(dev)->gen >= 9) { | |
14138 | if (pipe == PIPE_C) | |
14139 | intel_crtc->num_scalers = 1; | |
14140 | else | |
14141 | intel_crtc->num_scalers = SKL_NUM_SCALERS; | |
14142 | ||
14143 | skl_init_scalers(dev, intel_crtc, crtc_state); | |
14144 | } | |
14145 | ||
465c120c | 14146 | primary = intel_primary_plane_create(dev, pipe); |
3d7d6510 MR |
14147 | if (!primary) |
14148 | goto fail; | |
14149 | ||
14150 | cursor = intel_cursor_plane_create(dev, pipe); | |
14151 | if (!cursor) | |
14152 | goto fail; | |
14153 | ||
465c120c | 14154 | ret = drm_crtc_init_with_planes(dev, &intel_crtc->base, primary, |
3d7d6510 MR |
14155 | cursor, &intel_crtc_funcs); |
14156 | if (ret) | |
14157 | goto fail; | |
79e53945 JB |
14158 | |
14159 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
14160 | for (i = 0; i < 256; i++) { |
14161 | intel_crtc->lut_r[i] = i; | |
14162 | intel_crtc->lut_g[i] = i; | |
14163 | intel_crtc->lut_b[i] = i; | |
14164 | } | |
14165 | ||
1f1c2e24 VS |
14166 | /* |
14167 | * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port | |
8c0f92e1 | 14168 | * is hooked to pipe B. Hence we want plane A feeding pipe B. |
1f1c2e24 | 14169 | */ |
80824003 JB |
14170 | intel_crtc->pipe = pipe; |
14171 | intel_crtc->plane = pipe; | |
3a77c4c4 | 14172 | if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) { |
28c97730 | 14173 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 14174 | intel_crtc->plane = !pipe; |
80824003 JB |
14175 | } |
14176 | ||
4b0e333e CW |
14177 | intel_crtc->cursor_base = ~0; |
14178 | intel_crtc->cursor_cntl = ~0; | |
dc41c154 | 14179 | intel_crtc->cursor_size = ~0; |
8d7849db | 14180 | |
852eb00d VS |
14181 | intel_crtc->wm.cxsr_allowed = true; |
14182 | ||
22fd0fab JB |
14183 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
14184 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
14185 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
14186 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
14187 | ||
79e53945 | 14188 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
87b6b101 DV |
14189 | |
14190 | WARN_ON(drm_crtc_index(&intel_crtc->base) != intel_crtc->pipe); | |
3d7d6510 MR |
14191 | return; |
14192 | ||
14193 | fail: | |
14194 | if (primary) | |
14195 | drm_plane_cleanup(primary); | |
14196 | if (cursor) | |
14197 | drm_plane_cleanup(cursor); | |
f5de6e07 | 14198 | kfree(crtc_state); |
3d7d6510 | 14199 | kfree(intel_crtc); |
79e53945 JB |
14200 | } |
14201 | ||
752aa88a JB |
14202 | enum pipe intel_get_pipe_from_connector(struct intel_connector *connector) |
14203 | { | |
14204 | struct drm_encoder *encoder = connector->base.encoder; | |
6e9f798d | 14205 | struct drm_device *dev = connector->base.dev; |
752aa88a | 14206 | |
51fd371b | 14207 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
752aa88a | 14208 | |
d3babd3f | 14209 | if (!encoder || WARN_ON(!encoder->crtc)) |
752aa88a JB |
14210 | return INVALID_PIPE; |
14211 | ||
14212 | return to_intel_crtc(encoder->crtc)->pipe; | |
14213 | } | |
14214 | ||
08d7b3d1 | 14215 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 14216 | struct drm_file *file) |
08d7b3d1 | 14217 | { |
08d7b3d1 | 14218 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
7707e653 | 14219 | struct drm_crtc *drmmode_crtc; |
c05422d5 | 14220 | struct intel_crtc *crtc; |
08d7b3d1 | 14221 | |
7707e653 | 14222 | drmmode_crtc = drm_crtc_find(dev, pipe_from_crtc_id->crtc_id); |
08d7b3d1 | 14223 | |
7707e653 | 14224 | if (!drmmode_crtc) { |
08d7b3d1 | 14225 | DRM_ERROR("no such CRTC id\n"); |
3f2c2057 | 14226 | return -ENOENT; |
08d7b3d1 CW |
14227 | } |
14228 | ||
7707e653 | 14229 | crtc = to_intel_crtc(drmmode_crtc); |
c05422d5 | 14230 | pipe_from_crtc_id->pipe = crtc->pipe; |
08d7b3d1 | 14231 | |
c05422d5 | 14232 | return 0; |
08d7b3d1 CW |
14233 | } |
14234 | ||
66a9278e | 14235 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 14236 | { |
66a9278e DV |
14237 | struct drm_device *dev = encoder->base.dev; |
14238 | struct intel_encoder *source_encoder; | |
79e53945 | 14239 | int index_mask = 0; |
79e53945 JB |
14240 | int entry = 0; |
14241 | ||
b2784e15 | 14242 | for_each_intel_encoder(dev, source_encoder) { |
bc079e8b | 14243 | if (encoders_cloneable(encoder, source_encoder)) |
66a9278e DV |
14244 | index_mask |= (1 << entry); |
14245 | ||
79e53945 JB |
14246 | entry++; |
14247 | } | |
4ef69c7a | 14248 | |
79e53945 JB |
14249 | return index_mask; |
14250 | } | |
14251 | ||
4d302442 CW |
14252 | static bool has_edp_a(struct drm_device *dev) |
14253 | { | |
14254 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14255 | ||
14256 | if (!IS_MOBILE(dev)) | |
14257 | return false; | |
14258 | ||
14259 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
14260 | return false; | |
14261 | ||
e3589908 | 14262 | if (IS_GEN5(dev) && (I915_READ(FUSE_STRAP) & ILK_eDP_A_DISABLE)) |
4d302442 CW |
14263 | return false; |
14264 | ||
14265 | return true; | |
14266 | } | |
14267 | ||
84b4e042 JB |
14268 | static bool intel_crt_present(struct drm_device *dev) |
14269 | { | |
14270 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14271 | ||
884497ed DL |
14272 | if (INTEL_INFO(dev)->gen >= 9) |
14273 | return false; | |
14274 | ||
cf404ce4 | 14275 | if (IS_HSW_ULT(dev) || IS_BDW_ULT(dev)) |
84b4e042 JB |
14276 | return false; |
14277 | ||
14278 | if (IS_CHERRYVIEW(dev)) | |
14279 | return false; | |
14280 | ||
14281 | if (IS_VALLEYVIEW(dev) && !dev_priv->vbt.int_crt_support) | |
14282 | return false; | |
14283 | ||
14284 | return true; | |
14285 | } | |
14286 | ||
79e53945 JB |
14287 | static void intel_setup_outputs(struct drm_device *dev) |
14288 | { | |
725e30ad | 14289 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 14290 | struct intel_encoder *encoder; |
cb0953d7 | 14291 | bool dpd_is_edp = false; |
79e53945 | 14292 | |
c9093354 | 14293 | intel_lvds_init(dev); |
79e53945 | 14294 | |
84b4e042 | 14295 | if (intel_crt_present(dev)) |
79935fca | 14296 | intel_crt_init(dev); |
cb0953d7 | 14297 | |
c776eb2e VK |
14298 | if (IS_BROXTON(dev)) { |
14299 | /* | |
14300 | * FIXME: Broxton doesn't support port detection via the | |
14301 | * DDI_BUF_CTL_A or SFUSE_STRAP registers, find another way to | |
14302 | * detect the ports. | |
14303 | */ | |
14304 | intel_ddi_init(dev, PORT_A); | |
14305 | intel_ddi_init(dev, PORT_B); | |
14306 | intel_ddi_init(dev, PORT_C); | |
14307 | } else if (HAS_DDI(dev)) { | |
0e72a5b5 ED |
14308 | int found; |
14309 | ||
de31facd JB |
14310 | /* |
14311 | * Haswell uses DDI functions to detect digital outputs. | |
14312 | * On SKL pre-D0 the strap isn't connected, so we assume | |
14313 | * it's there. | |
14314 | */ | |
0e72a5b5 | 14315 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; |
de31facd JB |
14316 | /* WaIgnoreDDIAStrap: skl */ |
14317 | if (found || | |
14318 | (IS_SKYLAKE(dev) && INTEL_REVID(dev) < SKL_REVID_D0)) | |
0e72a5b5 ED |
14319 | intel_ddi_init(dev, PORT_A); |
14320 | ||
14321 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
14322 | * register */ | |
14323 | found = I915_READ(SFUSE_STRAP); | |
14324 | ||
14325 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
14326 | intel_ddi_init(dev, PORT_B); | |
14327 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
14328 | intel_ddi_init(dev, PORT_C); | |
14329 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
14330 | intel_ddi_init(dev, PORT_D); | |
14331 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 | 14332 | int found; |
5d8a7752 | 14333 | dpd_is_edp = intel_dp_is_edp(dev, PORT_D); |
270b3042 DV |
14334 | |
14335 | if (has_edp_a(dev)) | |
14336 | intel_dp_init(dev, DP_A, PORT_A); | |
cb0953d7 | 14337 | |
dc0fa718 | 14338 | if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) { |
461ed3ca | 14339 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 14340 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 | 14341 | if (!found) |
e2debe91 | 14342 | intel_hdmi_init(dev, PCH_HDMIB, PORT_B); |
5eb08b69 | 14343 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 14344 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
14345 | } |
14346 | ||
dc0fa718 | 14347 | if (I915_READ(PCH_HDMIC) & SDVO_DETECTED) |
e2debe91 | 14348 | intel_hdmi_init(dev, PCH_HDMIC, PORT_C); |
30ad48b7 | 14349 | |
dc0fa718 | 14350 | if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED) |
e2debe91 | 14351 | intel_hdmi_init(dev, PCH_HDMID, PORT_D); |
30ad48b7 | 14352 | |
5eb08b69 | 14353 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 14354 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 14355 | |
270b3042 | 14356 | if (I915_READ(PCH_DP_D) & DP_DETECTED) |
ab9d7c30 | 14357 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
4a87d65d | 14358 | } else if (IS_VALLEYVIEW(dev)) { |
e17ac6db VS |
14359 | /* |
14360 | * The DP_DETECTED bit is the latched state of the DDC | |
14361 | * SDA pin at boot. However since eDP doesn't require DDC | |
14362 | * (no way to plug in a DP->HDMI dongle) the DDC pins for | |
14363 | * eDP ports may have been muxed to an alternate function. | |
14364 | * Thus we can't rely on the DP_DETECTED bit alone to detect | |
14365 | * eDP ports. Consult the VBT as well as DP_DETECTED to | |
14366 | * detect eDP ports. | |
14367 | */ | |
d2182a66 VS |
14368 | if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED && |
14369 | !intel_dp_is_edp(dev, PORT_B)) | |
585a94b8 AB |
14370 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB, |
14371 | PORT_B); | |
e17ac6db VS |
14372 | if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED || |
14373 | intel_dp_is_edp(dev, PORT_B)) | |
14374 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B); | |
585a94b8 | 14375 | |
d2182a66 VS |
14376 | if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED && |
14377 | !intel_dp_is_edp(dev, PORT_C)) | |
6f6005a5 JB |
14378 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC, |
14379 | PORT_C); | |
e17ac6db VS |
14380 | if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED || |
14381 | intel_dp_is_edp(dev, PORT_C)) | |
14382 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C); | |
19c03924 | 14383 | |
9418c1f1 | 14384 | if (IS_CHERRYVIEW(dev)) { |
e17ac6db | 14385 | if (I915_READ(VLV_DISPLAY_BASE + CHV_HDMID) & SDVO_DETECTED) |
9418c1f1 VS |
14386 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + CHV_HDMID, |
14387 | PORT_D); | |
e17ac6db VS |
14388 | /* eDP not supported on port D, so don't check VBT */ |
14389 | if (I915_READ(VLV_DISPLAY_BASE + DP_D) & DP_DETECTED) | |
14390 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_D, PORT_D); | |
9418c1f1 VS |
14391 | } |
14392 | ||
3cfca973 | 14393 | intel_dsi_init(dev); |
09da55dc | 14394 | } else if (!IS_GEN2(dev) && !IS_PINEVIEW(dev)) { |
27185ae1 | 14395 | bool found = false; |
7d57382e | 14396 | |
e2debe91 | 14397 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 14398 | DRM_DEBUG_KMS("probing SDVOB\n"); |
e2debe91 | 14399 | found = intel_sdvo_init(dev, GEN3_SDVOB, true); |
3fec3d2f | 14400 | if (!found && IS_G4X(dev)) { |
b01f2c3a | 14401 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); |
e2debe91 | 14402 | intel_hdmi_init(dev, GEN4_HDMIB, PORT_B); |
b01f2c3a | 14403 | } |
27185ae1 | 14404 | |
3fec3d2f | 14405 | if (!found && IS_G4X(dev)) |
ab9d7c30 | 14406 | intel_dp_init(dev, DP_B, PORT_B); |
725e30ad | 14407 | } |
13520b05 KH |
14408 | |
14409 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 14410 | |
e2debe91 | 14411 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 14412 | DRM_DEBUG_KMS("probing SDVOC\n"); |
e2debe91 | 14413 | found = intel_sdvo_init(dev, GEN3_SDVOC, false); |
b01f2c3a | 14414 | } |
27185ae1 | 14415 | |
e2debe91 | 14416 | if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) { |
27185ae1 | 14417 | |
3fec3d2f | 14418 | if (IS_G4X(dev)) { |
b01f2c3a | 14419 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); |
e2debe91 | 14420 | intel_hdmi_init(dev, GEN4_HDMIC, PORT_C); |
b01f2c3a | 14421 | } |
3fec3d2f | 14422 | if (IS_G4X(dev)) |
ab9d7c30 | 14423 | intel_dp_init(dev, DP_C, PORT_C); |
725e30ad | 14424 | } |
27185ae1 | 14425 | |
3fec3d2f | 14426 | if (IS_G4X(dev) && |
e7281eab | 14427 | (I915_READ(DP_D) & DP_DETECTED)) |
ab9d7c30 | 14428 | intel_dp_init(dev, DP_D, PORT_D); |
bad720ff | 14429 | } else if (IS_GEN2(dev)) |
79e53945 JB |
14430 | intel_dvo_init(dev); |
14431 | ||
103a196f | 14432 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
14433 | intel_tv_init(dev); |
14434 | ||
0bc12bcb | 14435 | intel_psr_init(dev); |
7c8f8a70 | 14436 | |
b2784e15 | 14437 | for_each_intel_encoder(dev, encoder) { |
4ef69c7a CW |
14438 | encoder->base.possible_crtcs = encoder->crtc_mask; |
14439 | encoder->base.possible_clones = | |
66a9278e | 14440 | intel_encoder_clones(encoder); |
79e53945 | 14441 | } |
47356eb6 | 14442 | |
dde86e2d | 14443 | intel_init_pch_refclk(dev); |
270b3042 DV |
14444 | |
14445 | drm_helper_move_panel_connectors_to_head(dev); | |
79e53945 JB |
14446 | } |
14447 | ||
14448 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
14449 | { | |
60a5ca01 | 14450 | struct drm_device *dev = fb->dev; |
79e53945 | 14451 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
79e53945 | 14452 | |
ef2d633e | 14453 | drm_framebuffer_cleanup(fb); |
60a5ca01 | 14454 | mutex_lock(&dev->struct_mutex); |
ef2d633e | 14455 | WARN_ON(!intel_fb->obj->framebuffer_references--); |
60a5ca01 VS |
14456 | drm_gem_object_unreference(&intel_fb->obj->base); |
14457 | mutex_unlock(&dev->struct_mutex); | |
79e53945 JB |
14458 | kfree(intel_fb); |
14459 | } | |
14460 | ||
14461 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 14462 | struct drm_file *file, |
79e53945 JB |
14463 | unsigned int *handle) |
14464 | { | |
14465 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 14466 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 14467 | |
05394f39 | 14468 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
14469 | } |
14470 | ||
86c98588 RV |
14471 | static int intel_user_framebuffer_dirty(struct drm_framebuffer *fb, |
14472 | struct drm_file *file, | |
14473 | unsigned flags, unsigned color, | |
14474 | struct drm_clip_rect *clips, | |
14475 | unsigned num_clips) | |
14476 | { | |
14477 | struct drm_device *dev = fb->dev; | |
14478 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
14479 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
14480 | ||
14481 | mutex_lock(&dev->struct_mutex); | |
14482 | intel_fb_obj_flush(obj, false, ORIGIN_GTT); | |
14483 | mutex_unlock(&dev->struct_mutex); | |
14484 | ||
14485 | return 0; | |
14486 | } | |
14487 | ||
79e53945 JB |
14488 | static const struct drm_framebuffer_funcs intel_fb_funcs = { |
14489 | .destroy = intel_user_framebuffer_destroy, | |
14490 | .create_handle = intel_user_framebuffer_create_handle, | |
86c98588 | 14491 | .dirty = intel_user_framebuffer_dirty, |
79e53945 JB |
14492 | }; |
14493 | ||
b321803d DL |
14494 | static |
14495 | u32 intel_fb_pitch_limit(struct drm_device *dev, uint64_t fb_modifier, | |
14496 | uint32_t pixel_format) | |
14497 | { | |
14498 | u32 gen = INTEL_INFO(dev)->gen; | |
14499 | ||
14500 | if (gen >= 9) { | |
14501 | /* "The stride in bytes must not exceed the of the size of 8K | |
14502 | * pixels and 32K bytes." | |
14503 | */ | |
14504 | return min(8192*drm_format_plane_cpp(pixel_format, 0), 32768); | |
14505 | } else if (gen >= 5 && !IS_VALLEYVIEW(dev)) { | |
14506 | return 32*1024; | |
14507 | } else if (gen >= 4) { | |
14508 | if (fb_modifier == I915_FORMAT_MOD_X_TILED) | |
14509 | return 16*1024; | |
14510 | else | |
14511 | return 32*1024; | |
14512 | } else if (gen >= 3) { | |
14513 | if (fb_modifier == I915_FORMAT_MOD_X_TILED) | |
14514 | return 8*1024; | |
14515 | else | |
14516 | return 16*1024; | |
14517 | } else { | |
14518 | /* XXX DSPC is limited to 4k tiled */ | |
14519 | return 8*1024; | |
14520 | } | |
14521 | } | |
14522 | ||
b5ea642a DV |
14523 | static int intel_framebuffer_init(struct drm_device *dev, |
14524 | struct intel_framebuffer *intel_fb, | |
14525 | struct drm_mode_fb_cmd2 *mode_cmd, | |
14526 | struct drm_i915_gem_object *obj) | |
79e53945 | 14527 | { |
6761dd31 | 14528 | unsigned int aligned_height; |
79e53945 | 14529 | int ret; |
b321803d | 14530 | u32 pitch_limit, stride_alignment; |
79e53945 | 14531 | |
dd4916c5 DV |
14532 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
14533 | ||
2a80eada DV |
14534 | if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) { |
14535 | /* Enforce that fb modifier and tiling mode match, but only for | |
14536 | * X-tiled. This is needed for FBC. */ | |
14537 | if (!!(obj->tiling_mode == I915_TILING_X) != | |
14538 | !!(mode_cmd->modifier[0] == I915_FORMAT_MOD_X_TILED)) { | |
14539 | DRM_DEBUG("tiling_mode doesn't match fb modifier\n"); | |
14540 | return -EINVAL; | |
14541 | } | |
14542 | } else { | |
14543 | if (obj->tiling_mode == I915_TILING_X) | |
14544 | mode_cmd->modifier[0] = I915_FORMAT_MOD_X_TILED; | |
14545 | else if (obj->tiling_mode == I915_TILING_Y) { | |
14546 | DRM_DEBUG("No Y tiling for legacy addfb\n"); | |
14547 | return -EINVAL; | |
14548 | } | |
14549 | } | |
14550 | ||
9a8f0a12 TU |
14551 | /* Passed in modifier sanity checking. */ |
14552 | switch (mode_cmd->modifier[0]) { | |
14553 | case I915_FORMAT_MOD_Y_TILED: | |
14554 | case I915_FORMAT_MOD_Yf_TILED: | |
14555 | if (INTEL_INFO(dev)->gen < 9) { | |
14556 | DRM_DEBUG("Unsupported tiling 0x%llx!\n", | |
14557 | mode_cmd->modifier[0]); | |
14558 | return -EINVAL; | |
14559 | } | |
14560 | case DRM_FORMAT_MOD_NONE: | |
14561 | case I915_FORMAT_MOD_X_TILED: | |
14562 | break; | |
14563 | default: | |
c0f40428 JB |
14564 | DRM_DEBUG("Unsupported fb modifier 0x%llx!\n", |
14565 | mode_cmd->modifier[0]); | |
57cd6508 | 14566 | return -EINVAL; |
c16ed4be | 14567 | } |
57cd6508 | 14568 | |
b321803d DL |
14569 | stride_alignment = intel_fb_stride_alignment(dev, mode_cmd->modifier[0], |
14570 | mode_cmd->pixel_format); | |
14571 | if (mode_cmd->pitches[0] & (stride_alignment - 1)) { | |
14572 | DRM_DEBUG("pitch (%d) must be at least %u byte aligned\n", | |
14573 | mode_cmd->pitches[0], stride_alignment); | |
57cd6508 | 14574 | return -EINVAL; |
c16ed4be | 14575 | } |
57cd6508 | 14576 | |
b321803d DL |
14577 | pitch_limit = intel_fb_pitch_limit(dev, mode_cmd->modifier[0], |
14578 | mode_cmd->pixel_format); | |
a35cdaa0 | 14579 | if (mode_cmd->pitches[0] > pitch_limit) { |
b321803d DL |
14580 | DRM_DEBUG("%s pitch (%u) must be at less than %d\n", |
14581 | mode_cmd->modifier[0] != DRM_FORMAT_MOD_NONE ? | |
2a80eada | 14582 | "tiled" : "linear", |
a35cdaa0 | 14583 | mode_cmd->pitches[0], pitch_limit); |
5d7bd705 | 14584 | return -EINVAL; |
c16ed4be | 14585 | } |
5d7bd705 | 14586 | |
2a80eada | 14587 | if (mode_cmd->modifier[0] == I915_FORMAT_MOD_X_TILED && |
c16ed4be CW |
14588 | mode_cmd->pitches[0] != obj->stride) { |
14589 | DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n", | |
14590 | mode_cmd->pitches[0], obj->stride); | |
5d7bd705 | 14591 | return -EINVAL; |
c16ed4be | 14592 | } |
5d7bd705 | 14593 | |
57779d06 | 14594 | /* Reject formats not supported by any plane early. */ |
308e5bcb | 14595 | switch (mode_cmd->pixel_format) { |
57779d06 | 14596 | case DRM_FORMAT_C8: |
04b3924d VS |
14597 | case DRM_FORMAT_RGB565: |
14598 | case DRM_FORMAT_XRGB8888: | |
14599 | case DRM_FORMAT_ARGB8888: | |
57779d06 VS |
14600 | break; |
14601 | case DRM_FORMAT_XRGB1555: | |
c16ed4be | 14602 | if (INTEL_INFO(dev)->gen > 3) { |
4ee62c76 VS |
14603 | DRM_DEBUG("unsupported pixel format: %s\n", |
14604 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 14605 | return -EINVAL; |
c16ed4be | 14606 | } |
57779d06 | 14607 | break; |
57779d06 | 14608 | case DRM_FORMAT_ABGR8888: |
6c0fd451 DL |
14609 | if (!IS_VALLEYVIEW(dev) && INTEL_INFO(dev)->gen < 9) { |
14610 | DRM_DEBUG("unsupported pixel format: %s\n", | |
14611 | drm_get_format_name(mode_cmd->pixel_format)); | |
14612 | return -EINVAL; | |
14613 | } | |
14614 | break; | |
14615 | case DRM_FORMAT_XBGR8888: | |
04b3924d | 14616 | case DRM_FORMAT_XRGB2101010: |
57779d06 | 14617 | case DRM_FORMAT_XBGR2101010: |
c16ed4be | 14618 | if (INTEL_INFO(dev)->gen < 4) { |
4ee62c76 VS |
14619 | DRM_DEBUG("unsupported pixel format: %s\n", |
14620 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 14621 | return -EINVAL; |
c16ed4be | 14622 | } |
b5626747 | 14623 | break; |
7531208b DL |
14624 | case DRM_FORMAT_ABGR2101010: |
14625 | if (!IS_VALLEYVIEW(dev)) { | |
14626 | DRM_DEBUG("unsupported pixel format: %s\n", | |
14627 | drm_get_format_name(mode_cmd->pixel_format)); | |
14628 | return -EINVAL; | |
14629 | } | |
14630 | break; | |
04b3924d VS |
14631 | case DRM_FORMAT_YUYV: |
14632 | case DRM_FORMAT_UYVY: | |
14633 | case DRM_FORMAT_YVYU: | |
14634 | case DRM_FORMAT_VYUY: | |
c16ed4be | 14635 | if (INTEL_INFO(dev)->gen < 5) { |
4ee62c76 VS |
14636 | DRM_DEBUG("unsupported pixel format: %s\n", |
14637 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 14638 | return -EINVAL; |
c16ed4be | 14639 | } |
57cd6508 CW |
14640 | break; |
14641 | default: | |
4ee62c76 VS |
14642 | DRM_DEBUG("unsupported pixel format: %s\n", |
14643 | drm_get_format_name(mode_cmd->pixel_format)); | |
57cd6508 CW |
14644 | return -EINVAL; |
14645 | } | |
14646 | ||
90f9a336 VS |
14647 | /* FIXME need to adjust LINOFF/TILEOFF accordingly. */ |
14648 | if (mode_cmd->offsets[0] != 0) | |
14649 | return -EINVAL; | |
14650 | ||
ec2c981e | 14651 | aligned_height = intel_fb_align_height(dev, mode_cmd->height, |
091df6cb DV |
14652 | mode_cmd->pixel_format, |
14653 | mode_cmd->modifier[0]); | |
53155c0a DV |
14654 | /* FIXME drm helper for size checks (especially planar formats)? */ |
14655 | if (obj->base.size < aligned_height * mode_cmd->pitches[0]) | |
14656 | return -EINVAL; | |
14657 | ||
c7d73f6a DV |
14658 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); |
14659 | intel_fb->obj = obj; | |
80075d49 | 14660 | intel_fb->obj->framebuffer_references++; |
c7d73f6a | 14661 | |
79e53945 JB |
14662 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
14663 | if (ret) { | |
14664 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
14665 | return ret; | |
14666 | } | |
14667 | ||
79e53945 JB |
14668 | return 0; |
14669 | } | |
14670 | ||
79e53945 JB |
14671 | static struct drm_framebuffer * |
14672 | intel_user_framebuffer_create(struct drm_device *dev, | |
14673 | struct drm_file *filp, | |
308e5bcb | 14674 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 14675 | { |
05394f39 | 14676 | struct drm_i915_gem_object *obj; |
79e53945 | 14677 | |
308e5bcb JB |
14678 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
14679 | mode_cmd->handles[0])); | |
c8725226 | 14680 | if (&obj->base == NULL) |
cce13ff7 | 14681 | return ERR_PTR(-ENOENT); |
79e53945 | 14682 | |
d2dff872 | 14683 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
14684 | } |
14685 | ||
4520f53a | 14686 | #ifndef CONFIG_DRM_I915_FBDEV |
0632fef6 | 14687 | static inline void intel_fbdev_output_poll_changed(struct drm_device *dev) |
4520f53a DV |
14688 | { |
14689 | } | |
14690 | #endif | |
14691 | ||
79e53945 | 14692 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 14693 | .fb_create = intel_user_framebuffer_create, |
0632fef6 | 14694 | .output_poll_changed = intel_fbdev_output_poll_changed, |
5ee67f1c MR |
14695 | .atomic_check = intel_atomic_check, |
14696 | .atomic_commit = intel_atomic_commit, | |
de419ab6 ML |
14697 | .atomic_state_alloc = intel_atomic_state_alloc, |
14698 | .atomic_state_clear = intel_atomic_state_clear, | |
79e53945 JB |
14699 | }; |
14700 | ||
e70236a8 JB |
14701 | /* Set up chip specific display functions */ |
14702 | static void intel_init_display(struct drm_device *dev) | |
14703 | { | |
14704 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14705 | ||
ee9300bb DV |
14706 | if (HAS_PCH_SPLIT(dev) || IS_G4X(dev)) |
14707 | dev_priv->display.find_dpll = g4x_find_best_dpll; | |
ef9348c8 CML |
14708 | else if (IS_CHERRYVIEW(dev)) |
14709 | dev_priv->display.find_dpll = chv_find_best_dpll; | |
ee9300bb DV |
14710 | else if (IS_VALLEYVIEW(dev)) |
14711 | dev_priv->display.find_dpll = vlv_find_best_dpll; | |
14712 | else if (IS_PINEVIEW(dev)) | |
14713 | dev_priv->display.find_dpll = pnv_find_best_dpll; | |
14714 | else | |
14715 | dev_priv->display.find_dpll = i9xx_find_best_dpll; | |
14716 | ||
bc8d7dff DL |
14717 | if (INTEL_INFO(dev)->gen >= 9) { |
14718 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; | |
5724dbd1 DL |
14719 | dev_priv->display.get_initial_plane_config = |
14720 | skylake_get_initial_plane_config; | |
bc8d7dff DL |
14721 | dev_priv->display.crtc_compute_clock = |
14722 | haswell_crtc_compute_clock; | |
14723 | dev_priv->display.crtc_enable = haswell_crtc_enable; | |
14724 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
bc8d7dff DL |
14725 | dev_priv->display.update_primary_plane = |
14726 | skylake_update_primary_plane; | |
14727 | } else if (HAS_DDI(dev)) { | |
0e8ffe1b | 14728 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; |
5724dbd1 DL |
14729 | dev_priv->display.get_initial_plane_config = |
14730 | ironlake_get_initial_plane_config; | |
797d0259 ACO |
14731 | dev_priv->display.crtc_compute_clock = |
14732 | haswell_crtc_compute_clock; | |
4f771f10 PZ |
14733 | dev_priv->display.crtc_enable = haswell_crtc_enable; |
14734 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
bc8d7dff DL |
14735 | dev_priv->display.update_primary_plane = |
14736 | ironlake_update_primary_plane; | |
09b4ddf9 | 14737 | } else if (HAS_PCH_SPLIT(dev)) { |
0e8ffe1b | 14738 | dev_priv->display.get_pipe_config = ironlake_get_pipe_config; |
5724dbd1 DL |
14739 | dev_priv->display.get_initial_plane_config = |
14740 | ironlake_get_initial_plane_config; | |
3fb37703 ACO |
14741 | dev_priv->display.crtc_compute_clock = |
14742 | ironlake_crtc_compute_clock; | |
76e5a89c DV |
14743 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
14744 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
262ca2b0 MR |
14745 | dev_priv->display.update_primary_plane = |
14746 | ironlake_update_primary_plane; | |
89b667f8 JB |
14747 | } else if (IS_VALLEYVIEW(dev)) { |
14748 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; | |
5724dbd1 DL |
14749 | dev_priv->display.get_initial_plane_config = |
14750 | i9xx_get_initial_plane_config; | |
d6dfee7a | 14751 | dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock; |
89b667f8 JB |
14752 | dev_priv->display.crtc_enable = valleyview_crtc_enable; |
14753 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
262ca2b0 MR |
14754 | dev_priv->display.update_primary_plane = |
14755 | i9xx_update_primary_plane; | |
f564048e | 14756 | } else { |
0e8ffe1b | 14757 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; |
5724dbd1 DL |
14758 | dev_priv->display.get_initial_plane_config = |
14759 | i9xx_get_initial_plane_config; | |
d6dfee7a | 14760 | dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock; |
76e5a89c DV |
14761 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
14762 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
262ca2b0 MR |
14763 | dev_priv->display.update_primary_plane = |
14764 | i9xx_update_primary_plane; | |
f564048e | 14765 | } |
e70236a8 | 14766 | |
e70236a8 | 14767 | /* Returns the core display clock speed */ |
1652d19e VS |
14768 | if (IS_SKYLAKE(dev)) |
14769 | dev_priv->display.get_display_clock_speed = | |
14770 | skylake_get_display_clock_speed; | |
acd3f3d3 BP |
14771 | else if (IS_BROXTON(dev)) |
14772 | dev_priv->display.get_display_clock_speed = | |
14773 | broxton_get_display_clock_speed; | |
1652d19e VS |
14774 | else if (IS_BROADWELL(dev)) |
14775 | dev_priv->display.get_display_clock_speed = | |
14776 | broadwell_get_display_clock_speed; | |
14777 | else if (IS_HASWELL(dev)) | |
14778 | dev_priv->display.get_display_clock_speed = | |
14779 | haswell_get_display_clock_speed; | |
14780 | else if (IS_VALLEYVIEW(dev)) | |
25eb05fc JB |
14781 | dev_priv->display.get_display_clock_speed = |
14782 | valleyview_get_display_clock_speed; | |
b37a6434 VS |
14783 | else if (IS_GEN5(dev)) |
14784 | dev_priv->display.get_display_clock_speed = | |
14785 | ilk_get_display_clock_speed; | |
a7c66cd8 | 14786 | else if (IS_I945G(dev) || IS_BROADWATER(dev) || |
34edce2f | 14787 | IS_GEN6(dev) || IS_IVYBRIDGE(dev)) |
e70236a8 JB |
14788 | dev_priv->display.get_display_clock_speed = |
14789 | i945_get_display_clock_speed; | |
34edce2f VS |
14790 | else if (IS_GM45(dev)) |
14791 | dev_priv->display.get_display_clock_speed = | |
14792 | gm45_get_display_clock_speed; | |
14793 | else if (IS_CRESTLINE(dev)) | |
14794 | dev_priv->display.get_display_clock_speed = | |
14795 | i965gm_get_display_clock_speed; | |
14796 | else if (IS_PINEVIEW(dev)) | |
14797 | dev_priv->display.get_display_clock_speed = | |
14798 | pnv_get_display_clock_speed; | |
14799 | else if (IS_G33(dev) || IS_G4X(dev)) | |
14800 | dev_priv->display.get_display_clock_speed = | |
14801 | g33_get_display_clock_speed; | |
e70236a8 JB |
14802 | else if (IS_I915G(dev)) |
14803 | dev_priv->display.get_display_clock_speed = | |
14804 | i915_get_display_clock_speed; | |
257a7ffc | 14805 | else if (IS_I945GM(dev) || IS_845G(dev)) |
e70236a8 JB |
14806 | dev_priv->display.get_display_clock_speed = |
14807 | i9xx_misc_get_display_clock_speed; | |
257a7ffc DV |
14808 | else if (IS_PINEVIEW(dev)) |
14809 | dev_priv->display.get_display_clock_speed = | |
14810 | pnv_get_display_clock_speed; | |
e70236a8 JB |
14811 | else if (IS_I915GM(dev)) |
14812 | dev_priv->display.get_display_clock_speed = | |
14813 | i915gm_get_display_clock_speed; | |
14814 | else if (IS_I865G(dev)) | |
14815 | dev_priv->display.get_display_clock_speed = | |
14816 | i865_get_display_clock_speed; | |
f0f8a9ce | 14817 | else if (IS_I85X(dev)) |
e70236a8 | 14818 | dev_priv->display.get_display_clock_speed = |
1b1d2716 | 14819 | i85x_get_display_clock_speed; |
623e01e5 VS |
14820 | else { /* 830 */ |
14821 | WARN(!IS_I830(dev), "Unknown platform. Assuming 133 MHz CDCLK\n"); | |
e70236a8 JB |
14822 | dev_priv->display.get_display_clock_speed = |
14823 | i830_get_display_clock_speed; | |
623e01e5 | 14824 | } |
e70236a8 | 14825 | |
7c10a2b5 | 14826 | if (IS_GEN5(dev)) { |
3bb11b53 | 14827 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
3bb11b53 SJ |
14828 | } else if (IS_GEN6(dev)) { |
14829 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; | |
3bb11b53 SJ |
14830 | } else if (IS_IVYBRIDGE(dev)) { |
14831 | /* FIXME: detect B0+ stepping and use auto training */ | |
14832 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
059b2fe9 | 14833 | } else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
3bb11b53 | 14834 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; |
27c329ed ML |
14835 | if (IS_BROADWELL(dev)) { |
14836 | dev_priv->display.modeset_commit_cdclk = | |
14837 | broadwell_modeset_commit_cdclk; | |
14838 | dev_priv->display.modeset_calc_cdclk = | |
14839 | broadwell_modeset_calc_cdclk; | |
14840 | } | |
30a970c6 | 14841 | } else if (IS_VALLEYVIEW(dev)) { |
27c329ed ML |
14842 | dev_priv->display.modeset_commit_cdclk = |
14843 | valleyview_modeset_commit_cdclk; | |
14844 | dev_priv->display.modeset_calc_cdclk = | |
14845 | valleyview_modeset_calc_cdclk; | |
f8437dd1 | 14846 | } else if (IS_BROXTON(dev)) { |
27c329ed ML |
14847 | dev_priv->display.modeset_commit_cdclk = |
14848 | broxton_modeset_commit_cdclk; | |
14849 | dev_priv->display.modeset_calc_cdclk = | |
14850 | broxton_modeset_calc_cdclk; | |
e70236a8 | 14851 | } |
8c9f3aaf | 14852 | |
8c9f3aaf JB |
14853 | switch (INTEL_INFO(dev)->gen) { |
14854 | case 2: | |
14855 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
14856 | break; | |
14857 | ||
14858 | case 3: | |
14859 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
14860 | break; | |
14861 | ||
14862 | case 4: | |
14863 | case 5: | |
14864 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
14865 | break; | |
14866 | ||
14867 | case 6: | |
14868 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
14869 | break; | |
7c9017e5 | 14870 | case 7: |
4e0bbc31 | 14871 | case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */ |
7c9017e5 JB |
14872 | dev_priv->display.queue_flip = intel_gen7_queue_flip; |
14873 | break; | |
830c81db | 14874 | case 9: |
ba343e02 TU |
14875 | /* Drop through - unsupported since execlist only. */ |
14876 | default: | |
14877 | /* Default just returns -ENODEV to indicate unsupported */ | |
14878 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
8c9f3aaf | 14879 | } |
7bd688cd JN |
14880 | |
14881 | intel_panel_init_backlight_funcs(dev); | |
e39b999a VS |
14882 | |
14883 | mutex_init(&dev_priv->pps_mutex); | |
e70236a8 JB |
14884 | } |
14885 | ||
b690e96c JB |
14886 | /* |
14887 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
14888 | * resume, or other times. This quirk makes sure that's the case for | |
14889 | * affected systems. | |
14890 | */ | |
0206e353 | 14891 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
14892 | { |
14893 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14894 | ||
14895 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 14896 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
14897 | } |
14898 | ||
b6b5d049 VS |
14899 | static void quirk_pipeb_force(struct drm_device *dev) |
14900 | { | |
14901 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14902 | ||
14903 | dev_priv->quirks |= QUIRK_PIPEB_FORCE; | |
14904 | DRM_INFO("applying pipe b force quirk\n"); | |
14905 | } | |
14906 | ||
435793df KP |
14907 | /* |
14908 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
14909 | */ | |
14910 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
14911 | { | |
14912 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14913 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 14914 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
14915 | } |
14916 | ||
4dca20ef | 14917 | /* |
5a15ab5b CE |
14918 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
14919 | * brightness value | |
4dca20ef CE |
14920 | */ |
14921 | static void quirk_invert_brightness(struct drm_device *dev) | |
14922 | { | |
14923 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14924 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 14925 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
14926 | } |
14927 | ||
9c72cc6f SD |
14928 | /* Some VBT's incorrectly indicate no backlight is present */ |
14929 | static void quirk_backlight_present(struct drm_device *dev) | |
14930 | { | |
14931 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14932 | dev_priv->quirks |= QUIRK_BACKLIGHT_PRESENT; | |
14933 | DRM_INFO("applying backlight present quirk\n"); | |
14934 | } | |
14935 | ||
b690e96c JB |
14936 | struct intel_quirk { |
14937 | int device; | |
14938 | int subsystem_vendor; | |
14939 | int subsystem_device; | |
14940 | void (*hook)(struct drm_device *dev); | |
14941 | }; | |
14942 | ||
5f85f176 EE |
14943 | /* For systems that don't have a meaningful PCI subdevice/subvendor ID */ |
14944 | struct intel_dmi_quirk { | |
14945 | void (*hook)(struct drm_device *dev); | |
14946 | const struct dmi_system_id (*dmi_id_list)[]; | |
14947 | }; | |
14948 | ||
14949 | static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) | |
14950 | { | |
14951 | DRM_INFO("Backlight polarity reversed on %s\n", id->ident); | |
14952 | return 1; | |
14953 | } | |
14954 | ||
14955 | static const struct intel_dmi_quirk intel_dmi_quirks[] = { | |
14956 | { | |
14957 | .dmi_id_list = &(const struct dmi_system_id[]) { | |
14958 | { | |
14959 | .callback = intel_dmi_reverse_brightness, | |
14960 | .ident = "NCR Corporation", | |
14961 | .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), | |
14962 | DMI_MATCH(DMI_PRODUCT_NAME, ""), | |
14963 | }, | |
14964 | }, | |
14965 | { } /* terminating entry */ | |
14966 | }, | |
14967 | .hook = quirk_invert_brightness, | |
14968 | }, | |
14969 | }; | |
14970 | ||
c43b5634 | 14971 | static struct intel_quirk intel_quirks[] = { |
b690e96c JB |
14972 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
14973 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
14974 | ||
b690e96c JB |
14975 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
14976 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
14977 | ||
5f080c0f VS |
14978 | /* 830 needs to leave pipe A & dpll A up */ |
14979 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
14980 | ||
b6b5d049 VS |
14981 | /* 830 needs to leave pipe B & dpll B up */ |
14982 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipeb_force }, | |
14983 | ||
435793df KP |
14984 | /* Lenovo U160 cannot use SSC on LVDS */ |
14985 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
14986 | |
14987 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
14988 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b | 14989 | |
be505f64 AH |
14990 | /* Acer Aspire 5734Z must invert backlight brightness */ |
14991 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
14992 | ||
14993 | /* Acer/eMachines G725 */ | |
14994 | { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness }, | |
14995 | ||
14996 | /* Acer/eMachines e725 */ | |
14997 | { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness }, | |
14998 | ||
14999 | /* Acer/Packard Bell NCL20 */ | |
15000 | { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness }, | |
15001 | ||
15002 | /* Acer Aspire 4736Z */ | |
15003 | { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness }, | |
0f540c3a JN |
15004 | |
15005 | /* Acer Aspire 5336 */ | |
15006 | { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness }, | |
2e93a1aa SD |
15007 | |
15008 | /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */ | |
15009 | { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present }, | |
d4967d8c | 15010 | |
dfb3d47b SD |
15011 | /* Acer C720 Chromebook (Core i3 4005U) */ |
15012 | { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present }, | |
15013 | ||
b2a9601c | 15014 | /* Apple Macbook 2,1 (Core 2 T7400) */ |
15015 | { 0x27a2, 0x8086, 0x7270, quirk_backlight_present }, | |
15016 | ||
d4967d8c SD |
15017 | /* Toshiba CB35 Chromebook (Celeron 2955U) */ |
15018 | { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present }, | |
724cb06f SD |
15019 | |
15020 | /* HP Chromebook 14 (Celeron 2955U) */ | |
15021 | { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present }, | |
cf6f0af9 JN |
15022 | |
15023 | /* Dell Chromebook 11 */ | |
15024 | { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present }, | |
b690e96c JB |
15025 | }; |
15026 | ||
15027 | static void intel_init_quirks(struct drm_device *dev) | |
15028 | { | |
15029 | struct pci_dev *d = dev->pdev; | |
15030 | int i; | |
15031 | ||
15032 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
15033 | struct intel_quirk *q = &intel_quirks[i]; | |
15034 | ||
15035 | if (d->device == q->device && | |
15036 | (d->subsystem_vendor == q->subsystem_vendor || | |
15037 | q->subsystem_vendor == PCI_ANY_ID) && | |
15038 | (d->subsystem_device == q->subsystem_device || | |
15039 | q->subsystem_device == PCI_ANY_ID)) | |
15040 | q->hook(dev); | |
15041 | } | |
5f85f176 EE |
15042 | for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { |
15043 | if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) | |
15044 | intel_dmi_quirks[i].hook(dev); | |
15045 | } | |
b690e96c JB |
15046 | } |
15047 | ||
9cce37f4 JB |
15048 | /* Disable the VGA plane that we never use */ |
15049 | static void i915_disable_vga(struct drm_device *dev) | |
15050 | { | |
15051 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15052 | u8 sr1; | |
766aa1c4 | 15053 | u32 vga_reg = i915_vgacntrl_reg(dev); |
9cce37f4 | 15054 | |
2b37c616 | 15055 | /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */ |
9cce37f4 | 15056 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); |
3fdcf431 | 15057 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
15058 | sr1 = inb(VGA_SR_DATA); |
15059 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
15060 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
15061 | udelay(300); | |
15062 | ||
01f5a626 | 15063 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); |
9cce37f4 JB |
15064 | POSTING_READ(vga_reg); |
15065 | } | |
15066 | ||
f817586c DV |
15067 | void intel_modeset_init_hw(struct drm_device *dev) |
15068 | { | |
b6283055 | 15069 | intel_update_cdclk(dev); |
a8f78b58 | 15070 | intel_prepare_ddi(dev); |
f817586c | 15071 | intel_init_clock_gating(dev); |
8090c6b9 | 15072 | intel_enable_gt_powersave(dev); |
f817586c DV |
15073 | } |
15074 | ||
79e53945 JB |
15075 | void intel_modeset_init(struct drm_device *dev) |
15076 | { | |
652c393a | 15077 | struct drm_i915_private *dev_priv = dev->dev_private; |
1fe47785 | 15078 | int sprite, ret; |
8cc87b75 | 15079 | enum pipe pipe; |
46f297fb | 15080 | struct intel_crtc *crtc; |
79e53945 JB |
15081 | |
15082 | drm_mode_config_init(dev); | |
15083 | ||
15084 | dev->mode_config.min_width = 0; | |
15085 | dev->mode_config.min_height = 0; | |
15086 | ||
019d96cb DA |
15087 | dev->mode_config.preferred_depth = 24; |
15088 | dev->mode_config.prefer_shadow = 1; | |
15089 | ||
25bab385 TU |
15090 | dev->mode_config.allow_fb_modifiers = true; |
15091 | ||
e6ecefaa | 15092 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 15093 | |
b690e96c JB |
15094 | intel_init_quirks(dev); |
15095 | ||
1fa61106 ED |
15096 | intel_init_pm(dev); |
15097 | ||
e3c74757 BW |
15098 | if (INTEL_INFO(dev)->num_pipes == 0) |
15099 | return; | |
15100 | ||
e70236a8 | 15101 | intel_init_display(dev); |
7c10a2b5 | 15102 | intel_init_audio(dev); |
e70236a8 | 15103 | |
a6c45cf0 CW |
15104 | if (IS_GEN2(dev)) { |
15105 | dev->mode_config.max_width = 2048; | |
15106 | dev->mode_config.max_height = 2048; | |
15107 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
15108 | dev->mode_config.max_width = 4096; |
15109 | dev->mode_config.max_height = 4096; | |
79e53945 | 15110 | } else { |
a6c45cf0 CW |
15111 | dev->mode_config.max_width = 8192; |
15112 | dev->mode_config.max_height = 8192; | |
79e53945 | 15113 | } |
068be561 | 15114 | |
dc41c154 VS |
15115 | if (IS_845G(dev) || IS_I865G(dev)) { |
15116 | dev->mode_config.cursor_width = IS_845G(dev) ? 64 : 512; | |
15117 | dev->mode_config.cursor_height = 1023; | |
15118 | } else if (IS_GEN2(dev)) { | |
068be561 DL |
15119 | dev->mode_config.cursor_width = GEN2_CURSOR_WIDTH; |
15120 | dev->mode_config.cursor_height = GEN2_CURSOR_HEIGHT; | |
15121 | } else { | |
15122 | dev->mode_config.cursor_width = MAX_CURSOR_WIDTH; | |
15123 | dev->mode_config.cursor_height = MAX_CURSOR_HEIGHT; | |
15124 | } | |
15125 | ||
5d4545ae | 15126 | dev->mode_config.fb_base = dev_priv->gtt.mappable_base; |
79e53945 | 15127 | |
28c97730 | 15128 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
7eb552ae BW |
15129 | INTEL_INFO(dev)->num_pipes, |
15130 | INTEL_INFO(dev)->num_pipes > 1 ? "s" : ""); | |
79e53945 | 15131 | |
055e393f | 15132 | for_each_pipe(dev_priv, pipe) { |
8cc87b75 | 15133 | intel_crtc_init(dev, pipe); |
3bdcfc0c | 15134 | for_each_sprite(dev_priv, pipe, sprite) { |
1fe47785 | 15135 | ret = intel_plane_init(dev, pipe, sprite); |
7f1f3851 | 15136 | if (ret) |
06da8da2 | 15137 | DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n", |
1fe47785 | 15138 | pipe_name(pipe), sprite_name(pipe, sprite), ret); |
7f1f3851 | 15139 | } |
79e53945 JB |
15140 | } |
15141 | ||
f42bb70d JB |
15142 | intel_init_dpio(dev); |
15143 | ||
e72f9fbf | 15144 | intel_shared_dpll_init(dev); |
ee7b9f93 | 15145 | |
9cce37f4 JB |
15146 | /* Just disable it once at startup */ |
15147 | i915_disable_vga(dev); | |
79e53945 | 15148 | intel_setup_outputs(dev); |
11be49eb CW |
15149 | |
15150 | /* Just in case the BIOS is doing something questionable. */ | |
7733b49b | 15151 | intel_fbc_disable(dev_priv); |
fa9fa083 | 15152 | |
6e9f798d | 15153 | drm_modeset_lock_all(dev); |
043e9bda | 15154 | intel_modeset_setup_hw_state(dev); |
6e9f798d | 15155 | drm_modeset_unlock_all(dev); |
46f297fb | 15156 | |
d3fcc808 | 15157 | for_each_intel_crtc(dev, crtc) { |
eeebeac5 ML |
15158 | struct intel_initial_plane_config plane_config = {}; |
15159 | ||
46f297fb JB |
15160 | if (!crtc->active) |
15161 | continue; | |
15162 | ||
46f297fb | 15163 | /* |
46f297fb JB |
15164 | * Note that reserving the BIOS fb up front prevents us |
15165 | * from stuffing other stolen allocations like the ring | |
15166 | * on top. This prevents some ugliness at boot time, and | |
15167 | * can even allow for smooth boot transitions if the BIOS | |
15168 | * fb is large enough for the active pipe configuration. | |
15169 | */ | |
eeebeac5 ML |
15170 | dev_priv->display.get_initial_plane_config(crtc, |
15171 | &plane_config); | |
15172 | ||
15173 | /* | |
15174 | * If the fb is shared between multiple heads, we'll | |
15175 | * just get the first one. | |
15176 | */ | |
15177 | intel_find_initial_plane_obj(crtc, &plane_config); | |
46f297fb | 15178 | } |
2c7111db CW |
15179 | } |
15180 | ||
7fad798e DV |
15181 | static void intel_enable_pipe_a(struct drm_device *dev) |
15182 | { | |
15183 | struct intel_connector *connector; | |
15184 | struct drm_connector *crt = NULL; | |
15185 | struct intel_load_detect_pipe load_detect_temp; | |
208bf9fd | 15186 | struct drm_modeset_acquire_ctx *ctx = dev->mode_config.acquire_ctx; |
7fad798e DV |
15187 | |
15188 | /* We can't just switch on the pipe A, we need to set things up with a | |
15189 | * proper mode and output configuration. As a gross hack, enable pipe A | |
15190 | * by enabling the load detect pipe once. */ | |
3a3371ff | 15191 | for_each_intel_connector(dev, connector) { |
7fad798e DV |
15192 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { |
15193 | crt = &connector->base; | |
15194 | break; | |
15195 | } | |
15196 | } | |
15197 | ||
15198 | if (!crt) | |
15199 | return; | |
15200 | ||
208bf9fd | 15201 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp, ctx)) |
49172fee | 15202 | intel_release_load_detect_pipe(crt, &load_detect_temp, ctx); |
7fad798e DV |
15203 | } |
15204 | ||
fa555837 DV |
15205 | static bool |
15206 | intel_check_plane_mapping(struct intel_crtc *crtc) | |
15207 | { | |
7eb552ae BW |
15208 | struct drm_device *dev = crtc->base.dev; |
15209 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 DV |
15210 | u32 reg, val; |
15211 | ||
7eb552ae | 15212 | if (INTEL_INFO(dev)->num_pipes == 1) |
fa555837 DV |
15213 | return true; |
15214 | ||
15215 | reg = DSPCNTR(!crtc->plane); | |
15216 | val = I915_READ(reg); | |
15217 | ||
15218 | if ((val & DISPLAY_PLANE_ENABLE) && | |
15219 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
15220 | return false; | |
15221 | ||
15222 | return true; | |
15223 | } | |
15224 | ||
24929352 DV |
15225 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
15226 | { | |
15227 | struct drm_device *dev = crtc->base.dev; | |
15228 | struct drm_i915_private *dev_priv = dev->dev_private; | |
b17d48e2 | 15229 | struct intel_encoder *encoder; |
fa555837 | 15230 | u32 reg; |
b17d48e2 | 15231 | bool enable; |
24929352 | 15232 | |
24929352 | 15233 | /* Clear any frame start delays used for debugging left by the BIOS */ |
6e3c9717 | 15234 | reg = PIPECONF(crtc->config->cpu_transcoder); |
24929352 DV |
15235 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); |
15236 | ||
d3eaf884 | 15237 | /* restore vblank interrupts to correct state */ |
9625604c | 15238 | drm_crtc_vblank_reset(&crtc->base); |
d297e103 | 15239 | if (crtc->active) { |
3a03dfb0 | 15240 | drm_calc_timestamping_constants(&crtc->base, &crtc->base.hwmode); |
d297e103 | 15241 | update_scanline_offset(crtc); |
9625604c DV |
15242 | drm_crtc_vblank_on(&crtc->base); |
15243 | } | |
d3eaf884 | 15244 | |
24929352 | 15245 | /* We need to sanitize the plane -> pipe mapping first because this will |
fa555837 DV |
15246 | * disable the crtc (and hence change the state) if it is wrong. Note |
15247 | * that gen4+ has a fixed plane -> pipe mapping. */ | |
15248 | if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) { | |
24929352 DV |
15249 | bool plane; |
15250 | ||
24929352 DV |
15251 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", |
15252 | crtc->base.base.id); | |
15253 | ||
15254 | /* Pipe has the wrong plane attached and the plane is active. | |
15255 | * Temporarily change the plane mapping and disable everything | |
15256 | * ... */ | |
15257 | plane = crtc->plane; | |
b70709a6 | 15258 | to_intel_plane_state(crtc->base.primary->state)->visible = true; |
24929352 | 15259 | crtc->plane = !plane; |
b17d48e2 | 15260 | intel_crtc_disable_noatomic(&crtc->base); |
24929352 | 15261 | crtc->plane = plane; |
24929352 | 15262 | } |
24929352 | 15263 | |
7fad798e DV |
15264 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
15265 | crtc->pipe == PIPE_A && !crtc->active) { | |
15266 | /* BIOS forgot to enable pipe A, this mostly happens after | |
15267 | * resume. Force-enable the pipe to fix this, the update_dpms | |
15268 | * call below we restore the pipe to the right state, but leave | |
15269 | * the required bits on. */ | |
15270 | intel_enable_pipe_a(dev); | |
15271 | } | |
15272 | ||
24929352 DV |
15273 | /* Adjust the state of the output pipe according to whether we |
15274 | * have active connectors/encoders. */ | |
b17d48e2 ML |
15275 | enable = false; |
15276 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) | |
15277 | enable |= encoder->connectors_active; | |
24929352 | 15278 | |
b17d48e2 ML |
15279 | if (!enable) |
15280 | intel_crtc_disable_noatomic(&crtc->base); | |
24929352 | 15281 | |
53d9f4e9 | 15282 | if (crtc->active != crtc->base.state->active) { |
24929352 DV |
15283 | |
15284 | /* This can happen either due to bugs in the get_hw_state | |
b17d48e2 ML |
15285 | * functions or because of calls to intel_crtc_disable_noatomic, |
15286 | * or because the pipe is force-enabled due to the | |
24929352 DV |
15287 | * pipe A quirk. */ |
15288 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", | |
15289 | crtc->base.base.id, | |
83d65738 | 15290 | crtc->base.state->enable ? "enabled" : "disabled", |
24929352 DV |
15291 | crtc->active ? "enabled" : "disabled"); |
15292 | ||
4be40c98 | 15293 | WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, NULL) < 0); |
49d6fa21 | 15294 | crtc->base.state->active = crtc->active; |
24929352 DV |
15295 | crtc->base.enabled = crtc->active; |
15296 | ||
15297 | /* Because we only establish the connector -> encoder -> | |
15298 | * crtc links if something is active, this means the | |
15299 | * crtc is now deactivated. Break the links. connector | |
15300 | * -> encoder links are only establish when things are | |
15301 | * actually up, hence no need to break them. */ | |
15302 | WARN_ON(crtc->active); | |
15303 | ||
15304 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { | |
15305 | WARN_ON(encoder->connectors_active); | |
15306 | encoder->base.crtc = NULL; | |
15307 | } | |
15308 | } | |
c5ab3bc0 | 15309 | |
a3ed6aad | 15310 | if (crtc->active || HAS_GMCH_DISPLAY(dev)) { |
4cc31489 DV |
15311 | /* |
15312 | * We start out with underrun reporting disabled to avoid races. | |
15313 | * For correct bookkeeping mark this on active crtcs. | |
15314 | * | |
c5ab3bc0 DV |
15315 | * Also on gmch platforms we dont have any hardware bits to |
15316 | * disable the underrun reporting. Which means we need to start | |
15317 | * out with underrun reporting disabled also on inactive pipes, | |
15318 | * since otherwise we'll complain about the garbage we read when | |
15319 | * e.g. coming up after runtime pm. | |
15320 | * | |
4cc31489 DV |
15321 | * No protection against concurrent access is required - at |
15322 | * worst a fifo underrun happens which also sets this to false. | |
15323 | */ | |
15324 | crtc->cpu_fifo_underrun_disabled = true; | |
15325 | crtc->pch_fifo_underrun_disabled = true; | |
15326 | } | |
24929352 DV |
15327 | } |
15328 | ||
15329 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
15330 | { | |
15331 | struct intel_connector *connector; | |
15332 | struct drm_device *dev = encoder->base.dev; | |
15333 | ||
15334 | /* We need to check both for a crtc link (meaning that the | |
15335 | * encoder is active and trying to read from a pipe) and the | |
15336 | * pipe itself being active. */ | |
15337 | bool has_active_crtc = encoder->base.crtc && | |
15338 | to_intel_crtc(encoder->base.crtc)->active; | |
15339 | ||
15340 | if (encoder->connectors_active && !has_active_crtc) { | |
15341 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", | |
15342 | encoder->base.base.id, | |
8e329a03 | 15343 | encoder->base.name); |
24929352 DV |
15344 | |
15345 | /* Connector is active, but has no active pipe. This is | |
15346 | * fallout from our resume register restoring. Disable | |
15347 | * the encoder manually again. */ | |
15348 | if (encoder->base.crtc) { | |
15349 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
15350 | encoder->base.base.id, | |
8e329a03 | 15351 | encoder->base.name); |
24929352 | 15352 | encoder->disable(encoder); |
a62d1497 VS |
15353 | if (encoder->post_disable) |
15354 | encoder->post_disable(encoder); | |
24929352 | 15355 | } |
7f1950fb EE |
15356 | encoder->base.crtc = NULL; |
15357 | encoder->connectors_active = false; | |
24929352 DV |
15358 | |
15359 | /* Inconsistent output/port/pipe state happens presumably due to | |
15360 | * a bug in one of the get_hw_state functions. Or someplace else | |
15361 | * in our code, like the register restore mess on resume. Clamp | |
15362 | * things to off as a safer default. */ | |
3a3371ff | 15363 | for_each_intel_connector(dev, connector) { |
24929352 DV |
15364 | if (connector->encoder != encoder) |
15365 | continue; | |
7f1950fb EE |
15366 | connector->base.dpms = DRM_MODE_DPMS_OFF; |
15367 | connector->base.encoder = NULL; | |
24929352 DV |
15368 | } |
15369 | } | |
15370 | /* Enabled encoders without active connectors will be fixed in | |
15371 | * the crtc fixup. */ | |
15372 | } | |
15373 | ||
04098753 | 15374 | void i915_redisable_vga_power_on(struct drm_device *dev) |
0fde901f KM |
15375 | { |
15376 | struct drm_i915_private *dev_priv = dev->dev_private; | |
766aa1c4 | 15377 | u32 vga_reg = i915_vgacntrl_reg(dev); |
0fde901f | 15378 | |
04098753 ID |
15379 | if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) { |
15380 | DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n"); | |
15381 | i915_disable_vga(dev); | |
15382 | } | |
15383 | } | |
15384 | ||
15385 | void i915_redisable_vga(struct drm_device *dev) | |
15386 | { | |
15387 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15388 | ||
8dc8a27c PZ |
15389 | /* This function can be called both from intel_modeset_setup_hw_state or |
15390 | * at a very early point in our resume sequence, where the power well | |
15391 | * structures are not yet restored. Since this function is at a very | |
15392 | * paranoid "someone might have enabled VGA while we were not looking" | |
15393 | * level, just check if the power well is enabled instead of trying to | |
15394 | * follow the "don't touch the power well if we don't need it" policy | |
15395 | * the rest of the driver uses. */ | |
f458ebbc | 15396 | if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_VGA)) |
8dc8a27c PZ |
15397 | return; |
15398 | ||
04098753 | 15399 | i915_redisable_vga_power_on(dev); |
0fde901f KM |
15400 | } |
15401 | ||
98ec7739 VS |
15402 | static bool primary_get_hw_state(struct intel_crtc *crtc) |
15403 | { | |
15404 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
15405 | ||
d032ffa0 ML |
15406 | return !!(I915_READ(DSPCNTR(crtc->plane)) & DISPLAY_PLANE_ENABLE); |
15407 | } | |
15408 | ||
15409 | static void readout_plane_state(struct intel_crtc *crtc, | |
15410 | struct intel_crtc_state *crtc_state) | |
15411 | { | |
15412 | struct intel_plane *p; | |
4cf0ebbd | 15413 | struct intel_plane_state *plane_state; |
d032ffa0 ML |
15414 | bool active = crtc_state->base.active; |
15415 | ||
d032ffa0 | 15416 | for_each_intel_plane(crtc->base.dev, p) { |
d032ffa0 ML |
15417 | if (crtc->pipe != p->pipe) |
15418 | continue; | |
15419 | ||
4cf0ebbd | 15420 | plane_state = to_intel_plane_state(p->base.state); |
e435d6e5 | 15421 | |
4cf0ebbd ML |
15422 | if (p->base.type == DRM_PLANE_TYPE_PRIMARY) |
15423 | plane_state->visible = primary_get_hw_state(crtc); | |
15424 | else { | |
15425 | if (active) | |
15426 | p->disable_plane(&p->base, &crtc->base); | |
d032ffa0 | 15427 | |
4cf0ebbd | 15428 | plane_state->visible = false; |
d032ffa0 ML |
15429 | } |
15430 | } | |
98ec7739 VS |
15431 | } |
15432 | ||
30e984df | 15433 | static void intel_modeset_readout_hw_state(struct drm_device *dev) |
24929352 DV |
15434 | { |
15435 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15436 | enum pipe pipe; | |
24929352 DV |
15437 | struct intel_crtc *crtc; |
15438 | struct intel_encoder *encoder; | |
15439 | struct intel_connector *connector; | |
5358901f | 15440 | int i; |
24929352 | 15441 | |
d3fcc808 | 15442 | for_each_intel_crtc(dev, crtc) { |
b06f8b0d | 15443 | __drm_atomic_helper_crtc_destroy_state(&crtc->base, crtc->base.state); |
6e3c9717 | 15444 | memset(crtc->config, 0, sizeof(*crtc->config)); |
f7217905 | 15445 | crtc->config->base.crtc = &crtc->base; |
3b117c8f | 15446 | |
6e3c9717 | 15447 | crtc->config->quirks |= PIPE_CONFIG_QUIRK_INHERITED_MODE; |
9953599b | 15448 | |
0e8ffe1b | 15449 | crtc->active = dev_priv->display.get_pipe_config(crtc, |
6e3c9717 | 15450 | crtc->config); |
24929352 | 15451 | |
49d6fa21 | 15452 | crtc->base.state->active = crtc->active; |
24929352 | 15453 | crtc->base.enabled = crtc->active; |
b70709a6 | 15454 | |
5c1e3426 ML |
15455 | memset(&crtc->base.mode, 0, sizeof(crtc->base.mode)); |
15456 | if (crtc->base.state->active) { | |
15457 | intel_mode_from_pipe_config(&crtc->base.mode, crtc->config); | |
15458 | intel_mode_from_pipe_config(&crtc->base.state->adjusted_mode, crtc->config); | |
15459 | WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, &crtc->base.mode)); | |
15460 | ||
15461 | /* | |
15462 | * The initial mode needs to be set in order to keep | |
15463 | * the atomic core happy. It wants a valid mode if the | |
15464 | * crtc's enabled, so we do the above call. | |
15465 | * | |
15466 | * At this point some state updated by the connectors | |
15467 | * in their ->detect() callback has not run yet, so | |
15468 | * no recalculation can be done yet. | |
15469 | * | |
15470 | * Even if we could do a recalculation and modeset | |
15471 | * right now it would cause a double modeset if | |
15472 | * fbdev or userspace chooses a different initial mode. | |
15473 | * | |
15474 | * So to prevent the double modeset, fail the memcmp | |
15475 | * test in drm_atomic_set_mode_for_crtc to get a new | |
15476 | * mode blob, and compare if the mode blob changed | |
15477 | * when the PIPE_CONFIG_QUIRK_INHERITED_MODE quirk is | |
15478 | * set. | |
15479 | * | |
15480 | * If that happens, someone indicated they wanted a | |
15481 | * mode change, which means it's safe to do a full | |
15482 | * recalculation. | |
15483 | */ | |
15484 | crtc->base.state->mode.private_flags = ~0; | |
15485 | } | |
15486 | ||
15487 | crtc->base.hwmode = crtc->config->base.adjusted_mode; | |
d032ffa0 | 15488 | readout_plane_state(crtc, to_intel_crtc_state(crtc->base.state)); |
24929352 DV |
15489 | |
15490 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
15491 | crtc->base.base.id, | |
15492 | crtc->active ? "enabled" : "disabled"); | |
15493 | } | |
15494 | ||
5358901f DV |
15495 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
15496 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
15497 | ||
3e369b76 ACO |
15498 | pll->on = pll->get_hw_state(dev_priv, pll, |
15499 | &pll->config.hw_state); | |
5358901f | 15500 | pll->active = 0; |
3e369b76 | 15501 | pll->config.crtc_mask = 0; |
d3fcc808 | 15502 | for_each_intel_crtc(dev, crtc) { |
1e6f2ddc | 15503 | if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll) { |
5358901f | 15504 | pll->active++; |
3e369b76 | 15505 | pll->config.crtc_mask |= 1 << crtc->pipe; |
1e6f2ddc | 15506 | } |
5358901f | 15507 | } |
5358901f | 15508 | |
1e6f2ddc | 15509 | DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n", |
3e369b76 | 15510 | pll->name, pll->config.crtc_mask, pll->on); |
bd2bb1b9 | 15511 | |
3e369b76 | 15512 | if (pll->config.crtc_mask) |
bd2bb1b9 | 15513 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); |
5358901f DV |
15514 | } |
15515 | ||
b2784e15 | 15516 | for_each_intel_encoder(dev, encoder) { |
24929352 DV |
15517 | pipe = 0; |
15518 | ||
15519 | if (encoder->get_hw_state(encoder, &pipe)) { | |
045ac3b5 JB |
15520 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
15521 | encoder->base.crtc = &crtc->base; | |
6e3c9717 | 15522 | encoder->get_config(encoder, crtc->config); |
24929352 DV |
15523 | } else { |
15524 | encoder->base.crtc = NULL; | |
15525 | } | |
15526 | ||
15527 | encoder->connectors_active = false; | |
6f2bcceb | 15528 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n", |
24929352 | 15529 | encoder->base.base.id, |
8e329a03 | 15530 | encoder->base.name, |
24929352 | 15531 | encoder->base.crtc ? "enabled" : "disabled", |
6f2bcceb | 15532 | pipe_name(pipe)); |
24929352 DV |
15533 | } |
15534 | ||
3a3371ff | 15535 | for_each_intel_connector(dev, connector) { |
24929352 DV |
15536 | if (connector->get_hw_state(connector)) { |
15537 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
15538 | connector->encoder->connectors_active = true; | |
15539 | connector->base.encoder = &connector->encoder->base; | |
15540 | } else { | |
15541 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
15542 | connector->base.encoder = NULL; | |
15543 | } | |
15544 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
15545 | connector->base.base.id, | |
c23cc417 | 15546 | connector->base.name, |
24929352 DV |
15547 | connector->base.encoder ? "enabled" : "disabled"); |
15548 | } | |
30e984df DV |
15549 | } |
15550 | ||
043e9bda ML |
15551 | /* Scan out the current hw modeset state, |
15552 | * and sanitizes it to the current state | |
15553 | */ | |
15554 | static void | |
15555 | intel_modeset_setup_hw_state(struct drm_device *dev) | |
30e984df DV |
15556 | { |
15557 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15558 | enum pipe pipe; | |
30e984df DV |
15559 | struct intel_crtc *crtc; |
15560 | struct intel_encoder *encoder; | |
35c95375 | 15561 | int i; |
30e984df DV |
15562 | |
15563 | intel_modeset_readout_hw_state(dev); | |
24929352 DV |
15564 | |
15565 | /* HW state is read out, now we need to sanitize this mess. */ | |
b2784e15 | 15566 | for_each_intel_encoder(dev, encoder) { |
24929352 DV |
15567 | intel_sanitize_encoder(encoder); |
15568 | } | |
15569 | ||
055e393f | 15570 | for_each_pipe(dev_priv, pipe) { |
24929352 DV |
15571 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
15572 | intel_sanitize_crtc(crtc); | |
6e3c9717 ACO |
15573 | intel_dump_pipe_config(crtc, crtc->config, |
15574 | "[setup_hw_state]"); | |
24929352 | 15575 | } |
9a935856 | 15576 | |
d29b2f9d ACO |
15577 | intel_modeset_update_connector_atomic_state(dev); |
15578 | ||
35c95375 DV |
15579 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
15580 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
15581 | ||
15582 | if (!pll->on || pll->active) | |
15583 | continue; | |
15584 | ||
15585 | DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name); | |
15586 | ||
15587 | pll->disable(dev_priv, pll); | |
15588 | pll->on = false; | |
15589 | } | |
15590 | ||
26e1fe4f | 15591 | if (IS_VALLEYVIEW(dev)) |
6eb1a681 VS |
15592 | vlv_wm_get_hw_state(dev); |
15593 | else if (IS_GEN9(dev)) | |
3078999f PB |
15594 | skl_wm_get_hw_state(dev); |
15595 | else if (HAS_PCH_SPLIT(dev)) | |
243e6a44 | 15596 | ilk_wm_get_hw_state(dev); |
292b990e ML |
15597 | |
15598 | for_each_intel_crtc(dev, crtc) { | |
15599 | unsigned long put_domains; | |
15600 | ||
15601 | put_domains = modeset_get_crtc_power_domains(&crtc->base); | |
15602 | if (WARN_ON(put_domains)) | |
15603 | modeset_put_power_domains(dev_priv, put_domains); | |
15604 | } | |
15605 | intel_display_set_init_power(dev_priv, false); | |
043e9bda | 15606 | } |
7d0bc1ea | 15607 | |
043e9bda ML |
15608 | void intel_display_resume(struct drm_device *dev) |
15609 | { | |
15610 | struct drm_atomic_state *state = drm_atomic_state_alloc(dev); | |
15611 | struct intel_connector *conn; | |
15612 | struct intel_plane *plane; | |
15613 | struct drm_crtc *crtc; | |
15614 | int ret; | |
f30da187 | 15615 | |
043e9bda ML |
15616 | if (!state) |
15617 | return; | |
15618 | ||
15619 | state->acquire_ctx = dev->mode_config.acquire_ctx; | |
15620 | ||
15621 | /* preserve complete old state, including dpll */ | |
15622 | intel_atomic_get_shared_dpll_state(state); | |
15623 | ||
15624 | for_each_crtc(dev, crtc) { | |
15625 | struct drm_crtc_state *crtc_state = | |
15626 | drm_atomic_get_crtc_state(state, crtc); | |
15627 | ||
15628 | ret = PTR_ERR_OR_ZERO(crtc_state); | |
15629 | if (ret) | |
15630 | goto err; | |
15631 | ||
15632 | /* force a restore */ | |
15633 | crtc_state->mode_changed = true; | |
45e2b5f6 | 15634 | } |
8af6cf88 | 15635 | |
043e9bda ML |
15636 | for_each_intel_plane(dev, plane) { |
15637 | ret = PTR_ERR_OR_ZERO(drm_atomic_get_plane_state(state, &plane->base)); | |
15638 | if (ret) | |
15639 | goto err; | |
15640 | } | |
15641 | ||
15642 | for_each_intel_connector(dev, conn) { | |
15643 | ret = PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(state, &conn->base)); | |
15644 | if (ret) | |
15645 | goto err; | |
15646 | } | |
15647 | ||
15648 | intel_modeset_setup_hw_state(dev); | |
15649 | ||
15650 | i915_redisable_vga(dev); | |
15651 | ret = intel_set_mode(state); | |
15652 | if (!ret) | |
15653 | return; | |
15654 | ||
15655 | err: | |
15656 | DRM_ERROR("Restoring old state failed with %i\n", ret); | |
15657 | drm_atomic_state_free(state); | |
2c7111db CW |
15658 | } |
15659 | ||
15660 | void intel_modeset_gem_init(struct drm_device *dev) | |
15661 | { | |
92122789 | 15662 | struct drm_i915_private *dev_priv = dev->dev_private; |
484b41dd | 15663 | struct drm_crtc *c; |
2ff8fde1 | 15664 | struct drm_i915_gem_object *obj; |
e0d6149b | 15665 | int ret; |
484b41dd | 15666 | |
ae48434c ID |
15667 | mutex_lock(&dev->struct_mutex); |
15668 | intel_init_gt_powersave(dev); | |
15669 | mutex_unlock(&dev->struct_mutex); | |
15670 | ||
92122789 JB |
15671 | /* |
15672 | * There may be no VBT; and if the BIOS enabled SSC we can | |
15673 | * just keep using it to avoid unnecessary flicker. Whereas if the | |
15674 | * BIOS isn't using it, don't assume it will work even if the VBT | |
15675 | * indicates as much. | |
15676 | */ | |
15677 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
15678 | dev_priv->vbt.lvds_use_ssc = !!(I915_READ(PCH_DREF_CONTROL) & | |
15679 | DREF_SSC1_ENABLE); | |
15680 | ||
1833b134 | 15681 | intel_modeset_init_hw(dev); |
02e792fb DV |
15682 | |
15683 | intel_setup_overlay(dev); | |
484b41dd JB |
15684 | |
15685 | /* | |
15686 | * Make sure any fbs we allocated at startup are properly | |
15687 | * pinned & fenced. When we do the allocation it's too early | |
15688 | * for this. | |
15689 | */ | |
70e1e0ec | 15690 | for_each_crtc(dev, c) { |
2ff8fde1 MR |
15691 | obj = intel_fb_obj(c->primary->fb); |
15692 | if (obj == NULL) | |
484b41dd JB |
15693 | continue; |
15694 | ||
e0d6149b TU |
15695 | mutex_lock(&dev->struct_mutex); |
15696 | ret = intel_pin_and_fence_fb_obj(c->primary, | |
15697 | c->primary->fb, | |
15698 | c->primary->state, | |
91af127f | 15699 | NULL, NULL); |
e0d6149b TU |
15700 | mutex_unlock(&dev->struct_mutex); |
15701 | if (ret) { | |
484b41dd JB |
15702 | DRM_ERROR("failed to pin boot fb on pipe %d\n", |
15703 | to_intel_crtc(c)->pipe); | |
66e514c1 DA |
15704 | drm_framebuffer_unreference(c->primary->fb); |
15705 | c->primary->fb = NULL; | |
36750f28 | 15706 | c->primary->crtc = c->primary->state->crtc = NULL; |
afd65eb4 | 15707 | update_state_fb(c->primary); |
36750f28 | 15708 | c->state->plane_mask &= ~(1 << drm_plane_index(c->primary)); |
484b41dd JB |
15709 | } |
15710 | } | |
0962c3c9 VS |
15711 | |
15712 | intel_backlight_register(dev); | |
79e53945 JB |
15713 | } |
15714 | ||
4932e2c3 ID |
15715 | void intel_connector_unregister(struct intel_connector *intel_connector) |
15716 | { | |
15717 | struct drm_connector *connector = &intel_connector->base; | |
15718 | ||
15719 | intel_panel_destroy_backlight(connector); | |
34ea3d38 | 15720 | drm_connector_unregister(connector); |
4932e2c3 ID |
15721 | } |
15722 | ||
79e53945 JB |
15723 | void intel_modeset_cleanup(struct drm_device *dev) |
15724 | { | |
652c393a | 15725 | struct drm_i915_private *dev_priv = dev->dev_private; |
d9255d57 | 15726 | struct drm_connector *connector; |
652c393a | 15727 | |
2eb5252e ID |
15728 | intel_disable_gt_powersave(dev); |
15729 | ||
0962c3c9 VS |
15730 | intel_backlight_unregister(dev); |
15731 | ||
fd0c0642 DV |
15732 | /* |
15733 | * Interrupts and polling as the first thing to avoid creating havoc. | |
2eb5252e | 15734 | * Too much stuff here (turning of connectors, ...) would |
fd0c0642 DV |
15735 | * experience fancy races otherwise. |
15736 | */ | |
2aeb7d3a | 15737 | intel_irq_uninstall(dev_priv); |
eb21b92b | 15738 | |
fd0c0642 DV |
15739 | /* |
15740 | * Due to the hpd irq storm handling the hotplug work can re-arm the | |
15741 | * poll handlers. Hence disable polling after hpd handling is shut down. | |
15742 | */ | |
f87ea761 | 15743 | drm_kms_helper_poll_fini(dev); |
fd0c0642 | 15744 | |
723bfd70 JB |
15745 | intel_unregister_dsm_handler(); |
15746 | ||
7733b49b | 15747 | intel_fbc_disable(dev_priv); |
69341a5e | 15748 | |
1630fe75 CW |
15749 | /* flush any delayed tasks or pending work */ |
15750 | flush_scheduled_work(); | |
15751 | ||
db31af1d JN |
15752 | /* destroy the backlight and sysfs files before encoders/connectors */ |
15753 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
4932e2c3 ID |
15754 | struct intel_connector *intel_connector; |
15755 | ||
15756 | intel_connector = to_intel_connector(connector); | |
15757 | intel_connector->unregister(intel_connector); | |
db31af1d | 15758 | } |
d9255d57 | 15759 | |
79e53945 | 15760 | drm_mode_config_cleanup(dev); |
4d7bb011 DV |
15761 | |
15762 | intel_cleanup_overlay(dev); | |
ae48434c ID |
15763 | |
15764 | mutex_lock(&dev->struct_mutex); | |
15765 | intel_cleanup_gt_powersave(dev); | |
15766 | mutex_unlock(&dev->struct_mutex); | |
79e53945 JB |
15767 | } |
15768 | ||
f1c79df3 ZW |
15769 | /* |
15770 | * Return which encoder is currently attached for connector. | |
15771 | */ | |
df0e9248 | 15772 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 15773 | { |
df0e9248 CW |
15774 | return &intel_attached_encoder(connector)->base; |
15775 | } | |
f1c79df3 | 15776 | |
df0e9248 CW |
15777 | void intel_connector_attach_encoder(struct intel_connector *connector, |
15778 | struct intel_encoder *encoder) | |
15779 | { | |
15780 | connector->encoder = encoder; | |
15781 | drm_mode_connector_attach_encoder(&connector->base, | |
15782 | &encoder->base); | |
79e53945 | 15783 | } |
28d52043 DA |
15784 | |
15785 | /* | |
15786 | * set vga decode state - true == enable VGA decode | |
15787 | */ | |
15788 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
15789 | { | |
15790 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a885b3cc | 15791 | unsigned reg = INTEL_INFO(dev)->gen >= 6 ? SNB_GMCH_CTRL : INTEL_GMCH_CTRL; |
28d52043 DA |
15792 | u16 gmch_ctrl; |
15793 | ||
75fa041d CW |
15794 | if (pci_read_config_word(dev_priv->bridge_dev, reg, &gmch_ctrl)) { |
15795 | DRM_ERROR("failed to read control word\n"); | |
15796 | return -EIO; | |
15797 | } | |
15798 | ||
c0cc8a55 CW |
15799 | if (!!(gmch_ctrl & INTEL_GMCH_VGA_DISABLE) == !state) |
15800 | return 0; | |
15801 | ||
28d52043 DA |
15802 | if (state) |
15803 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
15804 | else | |
15805 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
75fa041d CW |
15806 | |
15807 | if (pci_write_config_word(dev_priv->bridge_dev, reg, gmch_ctrl)) { | |
15808 | DRM_ERROR("failed to write control word\n"); | |
15809 | return -EIO; | |
15810 | } | |
15811 | ||
28d52043 DA |
15812 | return 0; |
15813 | } | |
c4a1d9e4 | 15814 | |
c4a1d9e4 | 15815 | struct intel_display_error_state { |
ff57f1b0 PZ |
15816 | |
15817 | u32 power_well_driver; | |
15818 | ||
63b66e5b CW |
15819 | int num_transcoders; |
15820 | ||
c4a1d9e4 CW |
15821 | struct intel_cursor_error_state { |
15822 | u32 control; | |
15823 | u32 position; | |
15824 | u32 base; | |
15825 | u32 size; | |
52331309 | 15826 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
15827 | |
15828 | struct intel_pipe_error_state { | |
ddf9c536 | 15829 | bool power_domain_on; |
c4a1d9e4 | 15830 | u32 source; |
f301b1e1 | 15831 | u32 stat; |
52331309 | 15832 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
15833 | |
15834 | struct intel_plane_error_state { | |
15835 | u32 control; | |
15836 | u32 stride; | |
15837 | u32 size; | |
15838 | u32 pos; | |
15839 | u32 addr; | |
15840 | u32 surface; | |
15841 | u32 tile_offset; | |
52331309 | 15842 | } plane[I915_MAX_PIPES]; |
63b66e5b CW |
15843 | |
15844 | struct intel_transcoder_error_state { | |
ddf9c536 | 15845 | bool power_domain_on; |
63b66e5b CW |
15846 | enum transcoder cpu_transcoder; |
15847 | ||
15848 | u32 conf; | |
15849 | ||
15850 | u32 htotal; | |
15851 | u32 hblank; | |
15852 | u32 hsync; | |
15853 | u32 vtotal; | |
15854 | u32 vblank; | |
15855 | u32 vsync; | |
15856 | } transcoder[4]; | |
c4a1d9e4 CW |
15857 | }; |
15858 | ||
15859 | struct intel_display_error_state * | |
15860 | intel_display_capture_error_state(struct drm_device *dev) | |
15861 | { | |
fbee40df | 15862 | struct drm_i915_private *dev_priv = dev->dev_private; |
c4a1d9e4 | 15863 | struct intel_display_error_state *error; |
63b66e5b CW |
15864 | int transcoders[] = { |
15865 | TRANSCODER_A, | |
15866 | TRANSCODER_B, | |
15867 | TRANSCODER_C, | |
15868 | TRANSCODER_EDP, | |
15869 | }; | |
c4a1d9e4 CW |
15870 | int i; |
15871 | ||
63b66e5b CW |
15872 | if (INTEL_INFO(dev)->num_pipes == 0) |
15873 | return NULL; | |
15874 | ||
9d1cb914 | 15875 | error = kzalloc(sizeof(*error), GFP_ATOMIC); |
c4a1d9e4 CW |
15876 | if (error == NULL) |
15877 | return NULL; | |
15878 | ||
190be112 | 15879 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
ff57f1b0 PZ |
15880 | error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER); |
15881 | ||
055e393f | 15882 | for_each_pipe(dev_priv, i) { |
ddf9c536 | 15883 | error->pipe[i].power_domain_on = |
f458ebbc DV |
15884 | __intel_display_power_is_enabled(dev_priv, |
15885 | POWER_DOMAIN_PIPE(i)); | |
ddf9c536 | 15886 | if (!error->pipe[i].power_domain_on) |
9d1cb914 PZ |
15887 | continue; |
15888 | ||
5efb3e28 VS |
15889 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
15890 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
15891 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
c4a1d9e4 CW |
15892 | |
15893 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
15894 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
80ca378b | 15895 | if (INTEL_INFO(dev)->gen <= 3) { |
51889b35 | 15896 | error->plane[i].size = I915_READ(DSPSIZE(i)); |
80ca378b PZ |
15897 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
15898 | } | |
ca291363 PZ |
15899 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
15900 | error->plane[i].addr = I915_READ(DSPADDR(i)); | |
c4a1d9e4 CW |
15901 | if (INTEL_INFO(dev)->gen >= 4) { |
15902 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
15903 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
15904 | } | |
15905 | ||
c4a1d9e4 | 15906 | error->pipe[i].source = I915_READ(PIPESRC(i)); |
f301b1e1 | 15907 | |
3abfce77 | 15908 | if (HAS_GMCH_DISPLAY(dev)) |
f301b1e1 | 15909 | error->pipe[i].stat = I915_READ(PIPESTAT(i)); |
63b66e5b CW |
15910 | } |
15911 | ||
15912 | error->num_transcoders = INTEL_INFO(dev)->num_pipes; | |
15913 | if (HAS_DDI(dev_priv->dev)) | |
15914 | error->num_transcoders++; /* Account for eDP. */ | |
15915 | ||
15916 | for (i = 0; i < error->num_transcoders; i++) { | |
15917 | enum transcoder cpu_transcoder = transcoders[i]; | |
15918 | ||
ddf9c536 | 15919 | error->transcoder[i].power_domain_on = |
f458ebbc | 15920 | __intel_display_power_is_enabled(dev_priv, |
38cc1daf | 15921 | POWER_DOMAIN_TRANSCODER(cpu_transcoder)); |
ddf9c536 | 15922 | if (!error->transcoder[i].power_domain_on) |
9d1cb914 PZ |
15923 | continue; |
15924 | ||
63b66e5b CW |
15925 | error->transcoder[i].cpu_transcoder = cpu_transcoder; |
15926 | ||
15927 | error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder)); | |
15928 | error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder)); | |
15929 | error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder)); | |
15930 | error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder)); | |
15931 | error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder)); | |
15932 | error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder)); | |
15933 | error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder)); | |
c4a1d9e4 CW |
15934 | } |
15935 | ||
15936 | return error; | |
15937 | } | |
15938 | ||
edc3d884 MK |
15939 | #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__) |
15940 | ||
c4a1d9e4 | 15941 | void |
edc3d884 | 15942 | intel_display_print_error_state(struct drm_i915_error_state_buf *m, |
c4a1d9e4 CW |
15943 | struct drm_device *dev, |
15944 | struct intel_display_error_state *error) | |
15945 | { | |
055e393f | 15946 | struct drm_i915_private *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
15947 | int i; |
15948 | ||
63b66e5b CW |
15949 | if (!error) |
15950 | return; | |
15951 | ||
edc3d884 | 15952 | err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes); |
190be112 | 15953 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
edc3d884 | 15954 | err_printf(m, "PWR_WELL_CTL2: %08x\n", |
ff57f1b0 | 15955 | error->power_well_driver); |
055e393f | 15956 | for_each_pipe(dev_priv, i) { |
edc3d884 | 15957 | err_printf(m, "Pipe [%d]:\n", i); |
ddf9c536 ID |
15958 | err_printf(m, " Power: %s\n", |
15959 | error->pipe[i].power_domain_on ? "on" : "off"); | |
edc3d884 | 15960 | err_printf(m, " SRC: %08x\n", error->pipe[i].source); |
f301b1e1 | 15961 | err_printf(m, " STAT: %08x\n", error->pipe[i].stat); |
edc3d884 MK |
15962 | |
15963 | err_printf(m, "Plane [%d]:\n", i); | |
15964 | err_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
15965 | err_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
80ca378b | 15966 | if (INTEL_INFO(dev)->gen <= 3) { |
edc3d884 MK |
15967 | err_printf(m, " SIZE: %08x\n", error->plane[i].size); |
15968 | err_printf(m, " POS: %08x\n", error->plane[i].pos); | |
80ca378b | 15969 | } |
4b71a570 | 15970 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
edc3d884 | 15971 | err_printf(m, " ADDR: %08x\n", error->plane[i].addr); |
c4a1d9e4 | 15972 | if (INTEL_INFO(dev)->gen >= 4) { |
edc3d884 MK |
15973 | err_printf(m, " SURF: %08x\n", error->plane[i].surface); |
15974 | err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
c4a1d9e4 CW |
15975 | } |
15976 | ||
edc3d884 MK |
15977 | err_printf(m, "Cursor [%d]:\n", i); |
15978 | err_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
15979 | err_printf(m, " POS: %08x\n", error->cursor[i].position); | |
15980 | err_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
c4a1d9e4 | 15981 | } |
63b66e5b CW |
15982 | |
15983 | for (i = 0; i < error->num_transcoders; i++) { | |
1cf84bb6 | 15984 | err_printf(m, "CPU transcoder: %c\n", |
63b66e5b | 15985 | transcoder_name(error->transcoder[i].cpu_transcoder)); |
ddf9c536 ID |
15986 | err_printf(m, " Power: %s\n", |
15987 | error->transcoder[i].power_domain_on ? "on" : "off"); | |
63b66e5b CW |
15988 | err_printf(m, " CONF: %08x\n", error->transcoder[i].conf); |
15989 | err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal); | |
15990 | err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank); | |
15991 | err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync); | |
15992 | err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal); | |
15993 | err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank); | |
15994 | err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync); | |
15995 | } | |
c4a1d9e4 | 15996 | } |
e2fcdaa9 VS |
15997 | |
15998 | void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file) | |
15999 | { | |
16000 | struct intel_crtc *crtc; | |
16001 | ||
16002 | for_each_intel_crtc(dev, crtc) { | |
16003 | struct intel_unpin_work *work; | |
e2fcdaa9 | 16004 | |
5e2d7afc | 16005 | spin_lock_irq(&dev->event_lock); |
e2fcdaa9 VS |
16006 | |
16007 | work = crtc->unpin_work; | |
16008 | ||
16009 | if (work && work->event && | |
16010 | work->event->base.file_priv == file) { | |
16011 | kfree(work->event); | |
16012 | work->event = NULL; | |
16013 | } | |
16014 | ||
5e2d7afc | 16015 | spin_unlock_irq(&dev->event_lock); |
e2fcdaa9 VS |
16016 | } |
16017 | } |