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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" |
760285e7 DH |
40 | #include <drm/drm_dp_helper.h> |
41 | #include <drm/drm_crtc_helper.h> | |
465c120c MR |
42 | #include <drm/drm_plane_helper.h> |
43 | #include <drm/drm_rect.h> | |
c0f372b3 | 44 | #include <linux/dma_remapping.h> |
79e53945 | 45 | |
465c120c MR |
46 | /* Primary plane formats supported by all gen */ |
47 | #define COMMON_PRIMARY_FORMATS \ | |
48 | DRM_FORMAT_C8, \ | |
49 | DRM_FORMAT_RGB565, \ | |
50 | DRM_FORMAT_XRGB8888, \ | |
51 | DRM_FORMAT_ARGB8888 | |
52 | ||
53 | /* Primary plane formats for gen <= 3 */ | |
54 | static const uint32_t intel_primary_formats_gen2[] = { | |
55 | COMMON_PRIMARY_FORMATS, | |
56 | DRM_FORMAT_XRGB1555, | |
57 | DRM_FORMAT_ARGB1555, | |
58 | }; | |
59 | ||
60 | /* Primary plane formats for gen >= 4 */ | |
61 | static const uint32_t intel_primary_formats_gen4[] = { | |
62 | COMMON_PRIMARY_FORMATS, \ | |
63 | DRM_FORMAT_XBGR8888, | |
64 | DRM_FORMAT_ABGR8888, | |
65 | DRM_FORMAT_XRGB2101010, | |
66 | DRM_FORMAT_ARGB2101010, | |
67 | DRM_FORMAT_XBGR2101010, | |
68 | DRM_FORMAT_ABGR2101010, | |
69 | }; | |
70 | ||
3d7d6510 MR |
71 | /* Cursor formats */ |
72 | static const uint32_t intel_cursor_formats[] = { | |
73 | DRM_FORMAT_ARGB8888, | |
74 | }; | |
75 | ||
6b383a7f | 76 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
79e53945 | 77 | |
f1f644dc JB |
78 | static void i9xx_crtc_clock_get(struct intel_crtc *crtc, |
79 | struct intel_crtc_config *pipe_config); | |
18442d08 VS |
80 | static void ironlake_pch_clock_get(struct intel_crtc *crtc, |
81 | struct intel_crtc_config *pipe_config); | |
f1f644dc | 82 | |
e7457a9a DL |
83 | static int intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, |
84 | int x, int y, struct drm_framebuffer *old_fb); | |
eb1bfe80 JB |
85 | static int intel_framebuffer_init(struct drm_device *dev, |
86 | struct intel_framebuffer *ifb, | |
87 | struct drm_mode_fb_cmd2 *mode_cmd, | |
88 | struct drm_i915_gem_object *obj); | |
5b18e57c DV |
89 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc); |
90 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc); | |
29407aab | 91 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, |
f769cd24 VK |
92 | struct intel_link_m_n *m_n, |
93 | struct intel_link_m_n *m2_n2); | |
29407aab | 94 | static void ironlake_set_pipeconf(struct drm_crtc *crtc); |
229fca97 DV |
95 | static void haswell_set_pipeconf(struct drm_crtc *crtc); |
96 | static void intel_set_pipe_csc(struct drm_crtc *crtc); | |
bdd4b6a6 | 97 | static void vlv_prepare_pll(struct intel_crtc *crtc); |
1ae0d137 | 98 | static void chv_prepare_pll(struct intel_crtc *crtc); |
e7457a9a | 99 | |
0e32b39c DA |
100 | static struct intel_encoder *intel_find_encoder(struct intel_connector *connector, int pipe) |
101 | { | |
102 | if (!connector->mst_port) | |
103 | return connector->encoder; | |
104 | else | |
105 | return &connector->mst_port->mst_encoders[pipe]->base; | |
106 | } | |
107 | ||
79e53945 | 108 | typedef struct { |
0206e353 | 109 | int min, max; |
79e53945 JB |
110 | } intel_range_t; |
111 | ||
112 | typedef struct { | |
0206e353 AJ |
113 | int dot_limit; |
114 | int p2_slow, p2_fast; | |
79e53945 JB |
115 | } intel_p2_t; |
116 | ||
d4906093 ML |
117 | typedef struct intel_limit intel_limit_t; |
118 | struct intel_limit { | |
0206e353 AJ |
119 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
120 | intel_p2_t p2; | |
d4906093 | 121 | }; |
79e53945 | 122 | |
d2acd215 DV |
123 | int |
124 | intel_pch_rawclk(struct drm_device *dev) | |
125 | { | |
126 | struct drm_i915_private *dev_priv = dev->dev_private; | |
127 | ||
128 | WARN_ON(!HAS_PCH_SPLIT(dev)); | |
129 | ||
130 | return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK; | |
131 | } | |
132 | ||
021357ac CW |
133 | static inline u32 /* units of 100MHz */ |
134 | intel_fdi_link_freq(struct drm_device *dev) | |
135 | { | |
8b99e68c CW |
136 | if (IS_GEN5(dev)) { |
137 | struct drm_i915_private *dev_priv = dev->dev_private; | |
138 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
139 | } else | |
140 | return 27; | |
021357ac CW |
141 | } |
142 | ||
5d536e28 | 143 | static const intel_limit_t intel_limits_i8xx_dac = { |
0206e353 | 144 | .dot = { .min = 25000, .max = 350000 }, |
9c333719 | 145 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 146 | .n = { .min = 2, .max = 16 }, |
0206e353 AJ |
147 | .m = { .min = 96, .max = 140 }, |
148 | .m1 = { .min = 18, .max = 26 }, | |
149 | .m2 = { .min = 6, .max = 16 }, | |
150 | .p = { .min = 4, .max = 128 }, | |
151 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
152 | .p2 = { .dot_limit = 165000, |
153 | .p2_slow = 4, .p2_fast = 2 }, | |
e4b36699 KP |
154 | }; |
155 | ||
5d536e28 DV |
156 | static const intel_limit_t intel_limits_i8xx_dvo = { |
157 | .dot = { .min = 25000, .max = 350000 }, | |
9c333719 | 158 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 159 | .n = { .min = 2, .max = 16 }, |
5d536e28 DV |
160 | .m = { .min = 96, .max = 140 }, |
161 | .m1 = { .min = 18, .max = 26 }, | |
162 | .m2 = { .min = 6, .max = 16 }, | |
163 | .p = { .min = 4, .max = 128 }, | |
164 | .p1 = { .min = 2, .max = 33 }, | |
165 | .p2 = { .dot_limit = 165000, | |
166 | .p2_slow = 4, .p2_fast = 4 }, | |
167 | }; | |
168 | ||
e4b36699 | 169 | static const intel_limit_t intel_limits_i8xx_lvds = { |
0206e353 | 170 | .dot = { .min = 25000, .max = 350000 }, |
9c333719 | 171 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 172 | .n = { .min = 2, .max = 16 }, |
0206e353 AJ |
173 | .m = { .min = 96, .max = 140 }, |
174 | .m1 = { .min = 18, .max = 26 }, | |
175 | .m2 = { .min = 6, .max = 16 }, | |
176 | .p = { .min = 4, .max = 128 }, | |
177 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
178 | .p2 = { .dot_limit = 165000, |
179 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 | 180 | }; |
273e27ca | 181 | |
e4b36699 | 182 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
183 | .dot = { .min = 20000, .max = 400000 }, |
184 | .vco = { .min = 1400000, .max = 2800000 }, | |
185 | .n = { .min = 1, .max = 6 }, | |
186 | .m = { .min = 70, .max = 120 }, | |
4f7dfb67 PJ |
187 | .m1 = { .min = 8, .max = 18 }, |
188 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
189 | .p = { .min = 5, .max = 80 }, |
190 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
191 | .p2 = { .dot_limit = 200000, |
192 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
193 | }; |
194 | ||
195 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
196 | .dot = { .min = 20000, .max = 400000 }, |
197 | .vco = { .min = 1400000, .max = 2800000 }, | |
198 | .n = { .min = 1, .max = 6 }, | |
199 | .m = { .min = 70, .max = 120 }, | |
53a7d2d1 PJ |
200 | .m1 = { .min = 8, .max = 18 }, |
201 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
202 | .p = { .min = 7, .max = 98 }, |
203 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
204 | .p2 = { .dot_limit = 112000, |
205 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 KP |
206 | }; |
207 | ||
273e27ca | 208 | |
e4b36699 | 209 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
210 | .dot = { .min = 25000, .max = 270000 }, |
211 | .vco = { .min = 1750000, .max = 3500000}, | |
212 | .n = { .min = 1, .max = 4 }, | |
213 | .m = { .min = 104, .max = 138 }, | |
214 | .m1 = { .min = 17, .max = 23 }, | |
215 | .m2 = { .min = 5, .max = 11 }, | |
216 | .p = { .min = 10, .max = 30 }, | |
217 | .p1 = { .min = 1, .max = 3}, | |
218 | .p2 = { .dot_limit = 270000, | |
219 | .p2_slow = 10, | |
220 | .p2_fast = 10 | |
044c7c41 | 221 | }, |
e4b36699 KP |
222 | }; |
223 | ||
224 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
225 | .dot = { .min = 22000, .max = 400000 }, |
226 | .vco = { .min = 1750000, .max = 3500000}, | |
227 | .n = { .min = 1, .max = 4 }, | |
228 | .m = { .min = 104, .max = 138 }, | |
229 | .m1 = { .min = 16, .max = 23 }, | |
230 | .m2 = { .min = 5, .max = 11 }, | |
231 | .p = { .min = 5, .max = 80 }, | |
232 | .p1 = { .min = 1, .max = 8}, | |
233 | .p2 = { .dot_limit = 165000, | |
234 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
235 | }; |
236 | ||
237 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
238 | .dot = { .min = 20000, .max = 115000 }, |
239 | .vco = { .min = 1750000, .max = 3500000 }, | |
240 | .n = { .min = 1, .max = 3 }, | |
241 | .m = { .min = 104, .max = 138 }, | |
242 | .m1 = { .min = 17, .max = 23 }, | |
243 | .m2 = { .min = 5, .max = 11 }, | |
244 | .p = { .min = 28, .max = 112 }, | |
245 | .p1 = { .min = 2, .max = 8 }, | |
246 | .p2 = { .dot_limit = 0, | |
247 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 248 | }, |
e4b36699 KP |
249 | }; |
250 | ||
251 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
252 | .dot = { .min = 80000, .max = 224000 }, |
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 = 14, .max = 42 }, | |
259 | .p1 = { .min = 2, .max = 6 }, | |
260 | .p2 = { .dot_limit = 0, | |
261 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 262 | }, |
e4b36699 KP |
263 | }; |
264 | ||
f2b115e6 | 265 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
266 | .dot = { .min = 20000, .max = 400000}, |
267 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 268 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
269 | .n = { .min = 3, .max = 6 }, |
270 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 271 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
272 | .m1 = { .min = 0, .max = 0 }, |
273 | .m2 = { .min = 0, .max = 254 }, | |
274 | .p = { .min = 5, .max = 80 }, | |
275 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
276 | .p2 = { .dot_limit = 200000, |
277 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
278 | }; |
279 | ||
f2b115e6 | 280 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
281 | .dot = { .min = 20000, .max = 400000 }, |
282 | .vco = { .min = 1700000, .max = 3500000 }, | |
283 | .n = { .min = 3, .max = 6 }, | |
284 | .m = { .min = 2, .max = 256 }, | |
285 | .m1 = { .min = 0, .max = 0 }, | |
286 | .m2 = { .min = 0, .max = 254 }, | |
287 | .p = { .min = 7, .max = 112 }, | |
288 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
289 | .p2 = { .dot_limit = 112000, |
290 | .p2_slow = 14, .p2_fast = 14 }, | |
e4b36699 KP |
291 | }; |
292 | ||
273e27ca EA |
293 | /* Ironlake / Sandybridge |
294 | * | |
295 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
296 | * the range value for them is (actual_value - 2). | |
297 | */ | |
b91ad0ec | 298 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
299 | .dot = { .min = 25000, .max = 350000 }, |
300 | .vco = { .min = 1760000, .max = 3510000 }, | |
301 | .n = { .min = 1, .max = 5 }, | |
302 | .m = { .min = 79, .max = 127 }, | |
303 | .m1 = { .min = 12, .max = 22 }, | |
304 | .m2 = { .min = 5, .max = 9 }, | |
305 | .p = { .min = 5, .max = 80 }, | |
306 | .p1 = { .min = 1, .max = 8 }, | |
307 | .p2 = { .dot_limit = 225000, | |
308 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
309 | }; |
310 | ||
b91ad0ec | 311 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
312 | .dot = { .min = 25000, .max = 350000 }, |
313 | .vco = { .min = 1760000, .max = 3510000 }, | |
314 | .n = { .min = 1, .max = 3 }, | |
315 | .m = { .min = 79, .max = 118 }, | |
316 | .m1 = { .min = 12, .max = 22 }, | |
317 | .m2 = { .min = 5, .max = 9 }, | |
318 | .p = { .min = 28, .max = 112 }, | |
319 | .p1 = { .min = 2, .max = 8 }, | |
320 | .p2 = { .dot_limit = 225000, | |
321 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
322 | }; |
323 | ||
324 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
325 | .dot = { .min = 25000, .max = 350000 }, |
326 | .vco = { .min = 1760000, .max = 3510000 }, | |
327 | .n = { .min = 1, .max = 3 }, | |
328 | .m = { .min = 79, .max = 127 }, | |
329 | .m1 = { .min = 12, .max = 22 }, | |
330 | .m2 = { .min = 5, .max = 9 }, | |
331 | .p = { .min = 14, .max = 56 }, | |
332 | .p1 = { .min = 2, .max = 8 }, | |
333 | .p2 = { .dot_limit = 225000, | |
334 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
335 | }; |
336 | ||
273e27ca | 337 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 338 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
339 | .dot = { .min = 25000, .max = 350000 }, |
340 | .vco = { .min = 1760000, .max = 3510000 }, | |
341 | .n = { .min = 1, .max = 2 }, | |
342 | .m = { .min = 79, .max = 126 }, | |
343 | .m1 = { .min = 12, .max = 22 }, | |
344 | .m2 = { .min = 5, .max = 9 }, | |
345 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 346 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
347 | .p2 = { .dot_limit = 225000, |
348 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
349 | }; |
350 | ||
351 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
352 | .dot = { .min = 25000, .max = 350000 }, |
353 | .vco = { .min = 1760000, .max = 3510000 }, | |
354 | .n = { .min = 1, .max = 3 }, | |
355 | .m = { .min = 79, .max = 126 }, | |
356 | .m1 = { .min = 12, .max = 22 }, | |
357 | .m2 = { .min = 5, .max = 9 }, | |
358 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 359 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
360 | .p2 = { .dot_limit = 225000, |
361 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
362 | }; |
363 | ||
dc730512 | 364 | static const intel_limit_t intel_limits_vlv = { |
f01b7962 VS |
365 | /* |
366 | * These are the data rate limits (measured in fast clocks) | |
367 | * since those are the strictest limits we have. The fast | |
368 | * clock and actual rate limits are more relaxed, so checking | |
369 | * them would make no difference. | |
370 | */ | |
371 | .dot = { .min = 25000 * 5, .max = 270000 * 5 }, | |
75e53986 | 372 | .vco = { .min = 4000000, .max = 6000000 }, |
a0c4da24 | 373 | .n = { .min = 1, .max = 7 }, |
a0c4da24 JB |
374 | .m1 = { .min = 2, .max = 3 }, |
375 | .m2 = { .min = 11, .max = 156 }, | |
b99ab663 | 376 | .p1 = { .min = 2, .max = 3 }, |
5fdc9c49 | 377 | .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */ |
a0c4da24 JB |
378 | }; |
379 | ||
ef9348c8 CML |
380 | static const intel_limit_t intel_limits_chv = { |
381 | /* | |
382 | * These are the data rate limits (measured in fast clocks) | |
383 | * since those are the strictest limits we have. The fast | |
384 | * clock and actual rate limits are more relaxed, so checking | |
385 | * them would make no difference. | |
386 | */ | |
387 | .dot = { .min = 25000 * 5, .max = 540000 * 5}, | |
388 | .vco = { .min = 4860000, .max = 6700000 }, | |
389 | .n = { .min = 1, .max = 1 }, | |
390 | .m1 = { .min = 2, .max = 2 }, | |
391 | .m2 = { .min = 24 << 22, .max = 175 << 22 }, | |
392 | .p1 = { .min = 2, .max = 4 }, | |
393 | .p2 = { .p2_slow = 1, .p2_fast = 14 }, | |
394 | }; | |
395 | ||
6b4bf1c4 VS |
396 | static void vlv_clock(int refclk, intel_clock_t *clock) |
397 | { | |
398 | clock->m = clock->m1 * clock->m2; | |
399 | clock->p = clock->p1 * clock->p2; | |
ed5ca77e VS |
400 | if (WARN_ON(clock->n == 0 || clock->p == 0)) |
401 | return; | |
fb03ac01 VS |
402 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); |
403 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
6b4bf1c4 VS |
404 | } |
405 | ||
e0638cdf PZ |
406 | /** |
407 | * Returns whether any output on the specified pipe is of the specified type | |
408 | */ | |
409 | static bool intel_pipe_has_type(struct drm_crtc *crtc, int type) | |
410 | { | |
411 | struct drm_device *dev = crtc->dev; | |
412 | struct intel_encoder *encoder; | |
413 | ||
414 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
415 | if (encoder->type == type) | |
416 | return true; | |
417 | ||
418 | return false; | |
419 | } | |
420 | ||
1b894b59 CW |
421 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
422 | int refclk) | |
2c07245f | 423 | { |
b91ad0ec | 424 | struct drm_device *dev = crtc->dev; |
2c07245f | 425 | const intel_limit_t *limit; |
b91ad0ec ZW |
426 | |
427 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1974cad0 | 428 | if (intel_is_dual_link_lvds(dev)) { |
1b894b59 | 429 | if (refclk == 100000) |
b91ad0ec ZW |
430 | limit = &intel_limits_ironlake_dual_lvds_100m; |
431 | else | |
432 | limit = &intel_limits_ironlake_dual_lvds; | |
433 | } else { | |
1b894b59 | 434 | if (refclk == 100000) |
b91ad0ec ZW |
435 | limit = &intel_limits_ironlake_single_lvds_100m; |
436 | else | |
437 | limit = &intel_limits_ironlake_single_lvds; | |
438 | } | |
c6bb3538 | 439 | } else |
b91ad0ec | 440 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
441 | |
442 | return limit; | |
443 | } | |
444 | ||
044c7c41 ML |
445 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
446 | { | |
447 | struct drm_device *dev = crtc->dev; | |
044c7c41 ML |
448 | const intel_limit_t *limit; |
449 | ||
450 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1974cad0 | 451 | if (intel_is_dual_link_lvds(dev)) |
e4b36699 | 452 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 | 453 | else |
e4b36699 | 454 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
455 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
456 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 457 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 458 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 459 | limit = &intel_limits_g4x_sdvo; |
044c7c41 | 460 | } else /* The option is for other outputs */ |
e4b36699 | 461 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
462 | |
463 | return limit; | |
464 | } | |
465 | ||
1b894b59 | 466 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
79e53945 JB |
467 | { |
468 | struct drm_device *dev = crtc->dev; | |
469 | const intel_limit_t *limit; | |
470 | ||
bad720ff | 471 | if (HAS_PCH_SPLIT(dev)) |
1b894b59 | 472 | limit = intel_ironlake_limit(crtc, refclk); |
2c07245f | 473 | else if (IS_G4X(dev)) { |
044c7c41 | 474 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 475 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 476 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 477 | limit = &intel_limits_pineview_lvds; |
2177832f | 478 | else |
f2b115e6 | 479 | limit = &intel_limits_pineview_sdvo; |
ef9348c8 CML |
480 | } else if (IS_CHERRYVIEW(dev)) { |
481 | limit = &intel_limits_chv; | |
a0c4da24 | 482 | } else if (IS_VALLEYVIEW(dev)) { |
dc730512 | 483 | limit = &intel_limits_vlv; |
a6c45cf0 CW |
484 | } else if (!IS_GEN2(dev)) { |
485 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
486 | limit = &intel_limits_i9xx_lvds; | |
487 | else | |
488 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 JB |
489 | } else { |
490 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 491 | limit = &intel_limits_i8xx_lvds; |
5d536e28 | 492 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO)) |
e4b36699 | 493 | limit = &intel_limits_i8xx_dvo; |
5d536e28 DV |
494 | else |
495 | limit = &intel_limits_i8xx_dac; | |
79e53945 JB |
496 | } |
497 | return limit; | |
498 | } | |
499 | ||
f2b115e6 AJ |
500 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
501 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 502 | { |
2177832f SL |
503 | clock->m = clock->m2 + 2; |
504 | clock->p = clock->p1 * clock->p2; | |
ed5ca77e VS |
505 | if (WARN_ON(clock->n == 0 || clock->p == 0)) |
506 | return; | |
fb03ac01 VS |
507 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); |
508 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
2177832f SL |
509 | } |
510 | ||
7429e9d4 DV |
511 | static uint32_t i9xx_dpll_compute_m(struct dpll *dpll) |
512 | { | |
513 | return 5 * (dpll->m1 + 2) + (dpll->m2 + 2); | |
514 | } | |
515 | ||
ac58c3f0 | 516 | static void i9xx_clock(int refclk, intel_clock_t *clock) |
2177832f | 517 | { |
7429e9d4 | 518 | clock->m = i9xx_dpll_compute_m(clock); |
79e53945 | 519 | clock->p = clock->p1 * clock->p2; |
ed5ca77e VS |
520 | if (WARN_ON(clock->n + 2 == 0 || clock->p == 0)) |
521 | return; | |
fb03ac01 VS |
522 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2); |
523 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
79e53945 JB |
524 | } |
525 | ||
ef9348c8 CML |
526 | static void chv_clock(int refclk, intel_clock_t *clock) |
527 | { | |
528 | clock->m = clock->m1 * clock->m2; | |
529 | clock->p = clock->p1 * clock->p2; | |
530 | if (WARN_ON(clock->n == 0 || clock->p == 0)) | |
531 | return; | |
532 | clock->vco = DIV_ROUND_CLOSEST_ULL((uint64_t)refclk * clock->m, | |
533 | clock->n << 22); | |
534 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
535 | } | |
536 | ||
7c04d1d9 | 537 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
538 | /** |
539 | * Returns whether the given set of divisors are valid for a given refclk with | |
540 | * the given connectors. | |
541 | */ | |
542 | ||
1b894b59 CW |
543 | static bool intel_PLL_is_valid(struct drm_device *dev, |
544 | const intel_limit_t *limit, | |
545 | const intel_clock_t *clock) | |
79e53945 | 546 | { |
f01b7962 VS |
547 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
548 | INTELPllInvalid("n out of range\n"); | |
79e53945 | 549 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 550 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 551 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 552 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 553 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 554 | INTELPllInvalid("m1 out of range\n"); |
f01b7962 VS |
555 | |
556 | if (!IS_PINEVIEW(dev) && !IS_VALLEYVIEW(dev)) | |
557 | if (clock->m1 <= clock->m2) | |
558 | INTELPllInvalid("m1 <= m2\n"); | |
559 | ||
560 | if (!IS_VALLEYVIEW(dev)) { | |
561 | if (clock->p < limit->p.min || limit->p.max < clock->p) | |
562 | INTELPllInvalid("p out of range\n"); | |
563 | if (clock->m < limit->m.min || limit->m.max < clock->m) | |
564 | INTELPllInvalid("m out of range\n"); | |
565 | } | |
566 | ||
79e53945 | 567 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 568 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
569 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
570 | * connector, etc., rather than just a single range. | |
571 | */ | |
572 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 573 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
574 | |
575 | return true; | |
576 | } | |
577 | ||
d4906093 | 578 | static bool |
a919ff14 | 579 | i9xx_find_best_dpll(const intel_limit_t *limit, struct intel_crtc *crtc, |
cec2f356 SP |
580 | int target, int refclk, intel_clock_t *match_clock, |
581 | intel_clock_t *best_clock) | |
79e53945 | 582 | { |
a919ff14 | 583 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 584 | intel_clock_t clock; |
79e53945 JB |
585 | int err = target; |
586 | ||
a919ff14 | 587 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) { |
79e53945 | 588 | /* |
a210b028 DV |
589 | * For LVDS just rely on its current settings for dual-channel. |
590 | * We haven't figured out how to reliably set up different | |
591 | * single/dual channel state, if we even can. | |
79e53945 | 592 | */ |
1974cad0 | 593 | if (intel_is_dual_link_lvds(dev)) |
79e53945 JB |
594 | clock.p2 = limit->p2.p2_fast; |
595 | else | |
596 | clock.p2 = limit->p2.p2_slow; | |
597 | } else { | |
598 | if (target < limit->p2.dot_limit) | |
599 | clock.p2 = limit->p2.p2_slow; | |
600 | else | |
601 | clock.p2 = limit->p2.p2_fast; | |
602 | } | |
603 | ||
0206e353 | 604 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 605 | |
42158660 ZY |
606 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
607 | clock.m1++) { | |
608 | for (clock.m2 = limit->m2.min; | |
609 | clock.m2 <= limit->m2.max; clock.m2++) { | |
c0efc387 | 610 | if (clock.m2 >= clock.m1) |
42158660 ZY |
611 | break; |
612 | for (clock.n = limit->n.min; | |
613 | clock.n <= limit->n.max; clock.n++) { | |
614 | for (clock.p1 = limit->p1.min; | |
615 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
616 | int this_err; |
617 | ||
ac58c3f0 DV |
618 | i9xx_clock(refclk, &clock); |
619 | if (!intel_PLL_is_valid(dev, limit, | |
620 | &clock)) | |
621 | continue; | |
622 | if (match_clock && | |
623 | clock.p != match_clock->p) | |
624 | continue; | |
625 | ||
626 | this_err = abs(clock.dot - target); | |
627 | if (this_err < err) { | |
628 | *best_clock = clock; | |
629 | err = this_err; | |
630 | } | |
631 | } | |
632 | } | |
633 | } | |
634 | } | |
635 | ||
636 | return (err != target); | |
637 | } | |
638 | ||
639 | static bool | |
a919ff14 | 640 | pnv_find_best_dpll(const intel_limit_t *limit, struct intel_crtc *crtc, |
ee9300bb DV |
641 | int target, int refclk, intel_clock_t *match_clock, |
642 | intel_clock_t *best_clock) | |
79e53945 | 643 | { |
a919ff14 | 644 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 645 | intel_clock_t clock; |
79e53945 JB |
646 | int err = target; |
647 | ||
a919ff14 | 648 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) { |
79e53945 | 649 | /* |
a210b028 DV |
650 | * For LVDS just rely on its current settings for dual-channel. |
651 | * We haven't figured out how to reliably set up different | |
652 | * single/dual channel state, if we even can. | |
79e53945 | 653 | */ |
1974cad0 | 654 | if (intel_is_dual_link_lvds(dev)) |
79e53945 JB |
655 | clock.p2 = limit->p2.p2_fast; |
656 | else | |
657 | clock.p2 = limit->p2.p2_slow; | |
658 | } else { | |
659 | if (target < limit->p2.dot_limit) | |
660 | clock.p2 = limit->p2.p2_slow; | |
661 | else | |
662 | clock.p2 = limit->p2.p2_fast; | |
663 | } | |
664 | ||
0206e353 | 665 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 666 | |
42158660 ZY |
667 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
668 | clock.m1++) { | |
669 | for (clock.m2 = limit->m2.min; | |
670 | clock.m2 <= limit->m2.max; clock.m2++) { | |
42158660 ZY |
671 | for (clock.n = limit->n.min; |
672 | clock.n <= limit->n.max; clock.n++) { | |
673 | for (clock.p1 = limit->p1.min; | |
674 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
675 | int this_err; |
676 | ||
ac58c3f0 | 677 | pineview_clock(refclk, &clock); |
1b894b59 CW |
678 | if (!intel_PLL_is_valid(dev, limit, |
679 | &clock)) | |
79e53945 | 680 | continue; |
cec2f356 SP |
681 | if (match_clock && |
682 | clock.p != match_clock->p) | |
683 | continue; | |
79e53945 JB |
684 | |
685 | this_err = abs(clock.dot - target); | |
686 | if (this_err < err) { | |
687 | *best_clock = clock; | |
688 | err = this_err; | |
689 | } | |
690 | } | |
691 | } | |
692 | } | |
693 | } | |
694 | ||
695 | return (err != target); | |
696 | } | |
697 | ||
d4906093 | 698 | static bool |
a919ff14 | 699 | g4x_find_best_dpll(const intel_limit_t *limit, struct intel_crtc *crtc, |
ee9300bb DV |
700 | int target, int refclk, intel_clock_t *match_clock, |
701 | intel_clock_t *best_clock) | |
d4906093 | 702 | { |
a919ff14 | 703 | struct drm_device *dev = crtc->base.dev; |
d4906093 ML |
704 | intel_clock_t clock; |
705 | int max_n; | |
706 | bool found; | |
6ba770dc AJ |
707 | /* approximately equals target * 0.00585 */ |
708 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
709 | found = false; |
710 | ||
a919ff14 | 711 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) { |
1974cad0 | 712 | if (intel_is_dual_link_lvds(dev)) |
d4906093 ML |
713 | clock.p2 = limit->p2.p2_fast; |
714 | else | |
715 | clock.p2 = limit->p2.p2_slow; | |
716 | } else { | |
717 | if (target < limit->p2.dot_limit) | |
718 | clock.p2 = limit->p2.p2_slow; | |
719 | else | |
720 | clock.p2 = limit->p2.p2_fast; | |
721 | } | |
722 | ||
723 | memset(best_clock, 0, sizeof(*best_clock)); | |
724 | max_n = limit->n.max; | |
f77f13e2 | 725 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 726 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 727 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
728 | for (clock.m1 = limit->m1.max; |
729 | clock.m1 >= limit->m1.min; clock.m1--) { | |
730 | for (clock.m2 = limit->m2.max; | |
731 | clock.m2 >= limit->m2.min; clock.m2--) { | |
732 | for (clock.p1 = limit->p1.max; | |
733 | clock.p1 >= limit->p1.min; clock.p1--) { | |
734 | int this_err; | |
735 | ||
ac58c3f0 | 736 | i9xx_clock(refclk, &clock); |
1b894b59 CW |
737 | if (!intel_PLL_is_valid(dev, limit, |
738 | &clock)) | |
d4906093 | 739 | continue; |
1b894b59 CW |
740 | |
741 | this_err = abs(clock.dot - target); | |
d4906093 ML |
742 | if (this_err < err_most) { |
743 | *best_clock = clock; | |
744 | err_most = this_err; | |
745 | max_n = clock.n; | |
746 | found = true; | |
747 | } | |
748 | } | |
749 | } | |
750 | } | |
751 | } | |
2c07245f ZW |
752 | return found; |
753 | } | |
754 | ||
a0c4da24 | 755 | static bool |
a919ff14 | 756 | vlv_find_best_dpll(const intel_limit_t *limit, struct intel_crtc *crtc, |
ee9300bb DV |
757 | int target, int refclk, intel_clock_t *match_clock, |
758 | intel_clock_t *best_clock) | |
a0c4da24 | 759 | { |
a919ff14 | 760 | struct drm_device *dev = crtc->base.dev; |
6b4bf1c4 | 761 | intel_clock_t clock; |
69e4f900 | 762 | unsigned int bestppm = 1000000; |
27e639bf VS |
763 | /* min update 19.2 MHz */ |
764 | int max_n = min(limit->n.max, refclk / 19200); | |
49e497ef | 765 | bool found = false; |
a0c4da24 | 766 | |
6b4bf1c4 VS |
767 | target *= 5; /* fast clock */ |
768 | ||
769 | memset(best_clock, 0, sizeof(*best_clock)); | |
a0c4da24 JB |
770 | |
771 | /* based on hardware requirement, prefer smaller n to precision */ | |
27e639bf | 772 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
811bbf05 | 773 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { |
889059d8 | 774 | for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow; |
c1a9ae43 | 775 | clock.p2 -= clock.p2 > 10 ? 2 : 1) { |
6b4bf1c4 | 776 | clock.p = clock.p1 * clock.p2; |
a0c4da24 | 777 | /* based on hardware requirement, prefer bigger m1,m2 values */ |
6b4bf1c4 | 778 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) { |
69e4f900 VS |
779 | unsigned int ppm, diff; |
780 | ||
6b4bf1c4 VS |
781 | clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n, |
782 | refclk * clock.m1); | |
783 | ||
784 | vlv_clock(refclk, &clock); | |
43b0ac53 | 785 | |
f01b7962 VS |
786 | if (!intel_PLL_is_valid(dev, limit, |
787 | &clock)) | |
43b0ac53 VS |
788 | continue; |
789 | ||
6b4bf1c4 VS |
790 | diff = abs(clock.dot - target); |
791 | ppm = div_u64(1000000ULL * diff, target); | |
792 | ||
793 | if (ppm < 100 && clock.p > best_clock->p) { | |
43b0ac53 | 794 | bestppm = 0; |
6b4bf1c4 | 795 | *best_clock = clock; |
49e497ef | 796 | found = true; |
43b0ac53 | 797 | } |
6b4bf1c4 | 798 | |
c686122c | 799 | if (bestppm >= 10 && ppm < bestppm - 10) { |
69e4f900 | 800 | bestppm = ppm; |
6b4bf1c4 | 801 | *best_clock = clock; |
49e497ef | 802 | found = true; |
a0c4da24 JB |
803 | } |
804 | } | |
805 | } | |
806 | } | |
807 | } | |
a0c4da24 | 808 | |
49e497ef | 809 | return found; |
a0c4da24 | 810 | } |
a4fc5ed6 | 811 | |
ef9348c8 | 812 | static bool |
a919ff14 | 813 | chv_find_best_dpll(const intel_limit_t *limit, struct intel_crtc *crtc, |
ef9348c8 CML |
814 | int target, int refclk, intel_clock_t *match_clock, |
815 | intel_clock_t *best_clock) | |
816 | { | |
a919ff14 | 817 | struct drm_device *dev = crtc->base.dev; |
ef9348c8 CML |
818 | intel_clock_t clock; |
819 | uint64_t m2; | |
820 | int found = false; | |
821 | ||
822 | memset(best_clock, 0, sizeof(*best_clock)); | |
823 | ||
824 | /* | |
825 | * Based on hardware doc, the n always set to 1, and m1 always | |
826 | * set to 2. If requires to support 200Mhz refclk, we need to | |
827 | * revisit this because n may not 1 anymore. | |
828 | */ | |
829 | clock.n = 1, clock.m1 = 2; | |
830 | target *= 5; /* fast clock */ | |
831 | ||
832 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { | |
833 | for (clock.p2 = limit->p2.p2_fast; | |
834 | clock.p2 >= limit->p2.p2_slow; | |
835 | clock.p2 -= clock.p2 > 10 ? 2 : 1) { | |
836 | ||
837 | clock.p = clock.p1 * clock.p2; | |
838 | ||
839 | m2 = DIV_ROUND_CLOSEST_ULL(((uint64_t)target * clock.p * | |
840 | clock.n) << 22, refclk * clock.m1); | |
841 | ||
842 | if (m2 > INT_MAX/clock.m1) | |
843 | continue; | |
844 | ||
845 | clock.m2 = m2; | |
846 | ||
847 | chv_clock(refclk, &clock); | |
848 | ||
849 | if (!intel_PLL_is_valid(dev, limit, &clock)) | |
850 | continue; | |
851 | ||
852 | /* based on hardware requirement, prefer bigger p | |
853 | */ | |
854 | if (clock.p > best_clock->p) { | |
855 | *best_clock = clock; | |
856 | found = true; | |
857 | } | |
858 | } | |
859 | } | |
860 | ||
861 | return found; | |
862 | } | |
863 | ||
20ddf665 VS |
864 | bool intel_crtc_active(struct drm_crtc *crtc) |
865 | { | |
866 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
867 | ||
868 | /* Be paranoid as we can arrive here with only partial | |
869 | * state retrieved from the hardware during setup. | |
870 | * | |
241bfc38 | 871 | * We can ditch the adjusted_mode.crtc_clock check as soon |
20ddf665 VS |
872 | * as Haswell has gained clock readout/fastboot support. |
873 | * | |
66e514c1 | 874 | * We can ditch the crtc->primary->fb check as soon as we can |
20ddf665 VS |
875 | * properly reconstruct framebuffers. |
876 | */ | |
f4510a27 | 877 | return intel_crtc->active && crtc->primary->fb && |
241bfc38 | 878 | intel_crtc->config.adjusted_mode.crtc_clock; |
20ddf665 VS |
879 | } |
880 | ||
a5c961d1 PZ |
881 | enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv, |
882 | enum pipe pipe) | |
883 | { | |
884 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
885 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
886 | ||
3b117c8f | 887 | return intel_crtc->config.cpu_transcoder; |
a5c961d1 PZ |
888 | } |
889 | ||
fbf49ea2 VS |
890 | static bool pipe_dsl_stopped(struct drm_device *dev, enum pipe pipe) |
891 | { | |
892 | struct drm_i915_private *dev_priv = dev->dev_private; | |
893 | u32 reg = PIPEDSL(pipe); | |
894 | u32 line1, line2; | |
895 | u32 line_mask; | |
896 | ||
897 | if (IS_GEN2(dev)) | |
898 | line_mask = DSL_LINEMASK_GEN2; | |
899 | else | |
900 | line_mask = DSL_LINEMASK_GEN3; | |
901 | ||
902 | line1 = I915_READ(reg) & line_mask; | |
903 | mdelay(5); | |
904 | line2 = I915_READ(reg) & line_mask; | |
905 | ||
906 | return line1 == line2; | |
907 | } | |
908 | ||
ab7ad7f6 KP |
909 | /* |
910 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
575f7ab7 | 911 | * @crtc: crtc whose pipe to wait for |
9d0498a2 JB |
912 | * |
913 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
914 | * spinning on the vblank interrupt status bit, since we won't actually | |
915 | * see an interrupt when the pipe is disabled. | |
916 | * | |
ab7ad7f6 KP |
917 | * On Gen4 and above: |
918 | * wait for the pipe register state bit to turn off | |
919 | * | |
920 | * Otherwise: | |
921 | * wait for the display line value to settle (it usually | |
922 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 923 | * |
9d0498a2 | 924 | */ |
575f7ab7 | 925 | static void intel_wait_for_pipe_off(struct intel_crtc *crtc) |
9d0498a2 | 926 | { |
575f7ab7 | 927 | struct drm_device *dev = crtc->base.dev; |
9d0498a2 | 928 | struct drm_i915_private *dev_priv = dev->dev_private; |
575f7ab7 VS |
929 | enum transcoder cpu_transcoder = crtc->config.cpu_transcoder; |
930 | enum pipe pipe = crtc->pipe; | |
ab7ad7f6 KP |
931 | |
932 | if (INTEL_INFO(dev)->gen >= 4) { | |
702e7a56 | 933 | int reg = PIPECONF(cpu_transcoder); |
ab7ad7f6 KP |
934 | |
935 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
936 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
937 | 100)) | |
284637d9 | 938 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 939 | } else { |
ab7ad7f6 | 940 | /* Wait for the display line to settle */ |
fbf49ea2 | 941 | if (wait_for(pipe_dsl_stopped(dev, pipe), 100)) |
284637d9 | 942 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 943 | } |
79e53945 JB |
944 | } |
945 | ||
b0ea7d37 DL |
946 | /* |
947 | * ibx_digital_port_connected - is the specified port connected? | |
948 | * @dev_priv: i915 private structure | |
949 | * @port: the port to test | |
950 | * | |
951 | * Returns true if @port is connected, false otherwise. | |
952 | */ | |
953 | bool ibx_digital_port_connected(struct drm_i915_private *dev_priv, | |
954 | struct intel_digital_port *port) | |
955 | { | |
956 | u32 bit; | |
957 | ||
c36346e3 | 958 | if (HAS_PCH_IBX(dev_priv->dev)) { |
eba905b2 | 959 | switch (port->port) { |
c36346e3 DL |
960 | case PORT_B: |
961 | bit = SDE_PORTB_HOTPLUG; | |
962 | break; | |
963 | case PORT_C: | |
964 | bit = SDE_PORTC_HOTPLUG; | |
965 | break; | |
966 | case PORT_D: | |
967 | bit = SDE_PORTD_HOTPLUG; | |
968 | break; | |
969 | default: | |
970 | return true; | |
971 | } | |
972 | } else { | |
eba905b2 | 973 | switch (port->port) { |
c36346e3 DL |
974 | case PORT_B: |
975 | bit = SDE_PORTB_HOTPLUG_CPT; | |
976 | break; | |
977 | case PORT_C: | |
978 | bit = SDE_PORTC_HOTPLUG_CPT; | |
979 | break; | |
980 | case PORT_D: | |
981 | bit = SDE_PORTD_HOTPLUG_CPT; | |
982 | break; | |
983 | default: | |
984 | return true; | |
985 | } | |
b0ea7d37 DL |
986 | } |
987 | ||
988 | return I915_READ(SDEISR) & bit; | |
989 | } | |
990 | ||
b24e7179 JB |
991 | static const char *state_string(bool enabled) |
992 | { | |
993 | return enabled ? "on" : "off"; | |
994 | } | |
995 | ||
996 | /* Only for pre-ILK configs */ | |
55607e8a DV |
997 | void assert_pll(struct drm_i915_private *dev_priv, |
998 | enum pipe pipe, bool state) | |
b24e7179 JB |
999 | { |
1000 | int reg; | |
1001 | u32 val; | |
1002 | bool cur_state; | |
1003 | ||
1004 | reg = DPLL(pipe); | |
1005 | val = I915_READ(reg); | |
1006 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1007 | WARN(cur_state != state, | |
1008 | "PLL state assertion failure (expected %s, current %s)\n", | |
1009 | state_string(state), state_string(cur_state)); | |
1010 | } | |
b24e7179 | 1011 | |
23538ef1 JN |
1012 | /* XXX: the dsi pll is shared between MIPI DSI ports */ |
1013 | static void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state) | |
1014 | { | |
1015 | u32 val; | |
1016 | bool cur_state; | |
1017 | ||
1018 | mutex_lock(&dev_priv->dpio_lock); | |
1019 | val = vlv_cck_read(dev_priv, CCK_REG_DSI_PLL_CONTROL); | |
1020 | mutex_unlock(&dev_priv->dpio_lock); | |
1021 | ||
1022 | cur_state = val & DSI_PLL_VCO_EN; | |
1023 | WARN(cur_state != state, | |
1024 | "DSI PLL state assertion failure (expected %s, current %s)\n", | |
1025 | state_string(state), state_string(cur_state)); | |
1026 | } | |
1027 | #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true) | |
1028 | #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false) | |
1029 | ||
55607e8a | 1030 | struct intel_shared_dpll * |
e2b78267 DV |
1031 | intel_crtc_to_shared_dpll(struct intel_crtc *crtc) |
1032 | { | |
1033 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
1034 | ||
a43f6e0f | 1035 | if (crtc->config.shared_dpll < 0) |
e2b78267 DV |
1036 | return NULL; |
1037 | ||
a43f6e0f | 1038 | return &dev_priv->shared_dplls[crtc->config.shared_dpll]; |
e2b78267 DV |
1039 | } |
1040 | ||
040484af | 1041 | /* For ILK+ */ |
55607e8a DV |
1042 | void assert_shared_dpll(struct drm_i915_private *dev_priv, |
1043 | struct intel_shared_dpll *pll, | |
1044 | bool state) | |
040484af | 1045 | { |
040484af | 1046 | bool cur_state; |
5358901f | 1047 | struct intel_dpll_hw_state hw_state; |
040484af | 1048 | |
92b27b08 | 1049 | if (WARN (!pll, |
46edb027 | 1050 | "asserting DPLL %s with no DPLL\n", state_string(state))) |
ee7b9f93 | 1051 | return; |
ee7b9f93 | 1052 | |
5358901f | 1053 | cur_state = pll->get_hw_state(dev_priv, pll, &hw_state); |
92b27b08 | 1054 | WARN(cur_state != state, |
5358901f DV |
1055 | "%s assertion failure (expected %s, current %s)\n", |
1056 | pll->name, state_string(state), state_string(cur_state)); | |
040484af | 1057 | } |
040484af JB |
1058 | |
1059 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
1060 | enum pipe pipe, bool state) | |
1061 | { | |
1062 | int reg; | |
1063 | u32 val; | |
1064 | bool cur_state; | |
ad80a810 PZ |
1065 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1066 | pipe); | |
040484af | 1067 | |
affa9354 PZ |
1068 | if (HAS_DDI(dev_priv->dev)) { |
1069 | /* DDI does not have a specific FDI_TX register */ | |
ad80a810 | 1070 | reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
bf507ef7 | 1071 | val = I915_READ(reg); |
ad80a810 | 1072 | cur_state = !!(val & TRANS_DDI_FUNC_ENABLE); |
bf507ef7 ED |
1073 | } else { |
1074 | reg = FDI_TX_CTL(pipe); | |
1075 | val = I915_READ(reg); | |
1076 | cur_state = !!(val & FDI_TX_ENABLE); | |
1077 | } | |
040484af JB |
1078 | WARN(cur_state != state, |
1079 | "FDI TX state assertion failure (expected %s, current %s)\n", | |
1080 | state_string(state), state_string(cur_state)); | |
1081 | } | |
1082 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
1083 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
1084 | ||
1085 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
1086 | enum pipe pipe, bool state) | |
1087 | { | |
1088 | int reg; | |
1089 | u32 val; | |
1090 | bool cur_state; | |
1091 | ||
d63fa0dc PZ |
1092 | reg = FDI_RX_CTL(pipe); |
1093 | val = I915_READ(reg); | |
1094 | cur_state = !!(val & FDI_RX_ENABLE); | |
040484af JB |
1095 | WARN(cur_state != state, |
1096 | "FDI RX state assertion failure (expected %s, current %s)\n", | |
1097 | state_string(state), state_string(cur_state)); | |
1098 | } | |
1099 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
1100 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1101 | ||
1102 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1103 | enum pipe pipe) | |
1104 | { | |
1105 | int reg; | |
1106 | u32 val; | |
1107 | ||
1108 | /* ILK FDI PLL is always enabled */ | |
3d13ef2e | 1109 | if (INTEL_INFO(dev_priv->dev)->gen == 5) |
040484af JB |
1110 | return; |
1111 | ||
bf507ef7 | 1112 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
affa9354 | 1113 | if (HAS_DDI(dev_priv->dev)) |
bf507ef7 ED |
1114 | return; |
1115 | ||
040484af JB |
1116 | reg = FDI_TX_CTL(pipe); |
1117 | val = I915_READ(reg); | |
1118 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); | |
1119 | } | |
1120 | ||
55607e8a DV |
1121 | void assert_fdi_rx_pll(struct drm_i915_private *dev_priv, |
1122 | enum pipe pipe, bool state) | |
040484af JB |
1123 | { |
1124 | int reg; | |
1125 | u32 val; | |
55607e8a | 1126 | bool cur_state; |
040484af JB |
1127 | |
1128 | reg = FDI_RX_CTL(pipe); | |
1129 | val = I915_READ(reg); | |
55607e8a DV |
1130 | cur_state = !!(val & FDI_RX_PLL_ENABLE); |
1131 | WARN(cur_state != state, | |
1132 | "FDI RX PLL assertion failure (expected %s, current %s)\n", | |
1133 | state_string(state), state_string(cur_state)); | |
040484af JB |
1134 | } |
1135 | ||
b680c37a DV |
1136 | void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1137 | enum pipe pipe) | |
ea0760cf | 1138 | { |
bedd4dba JN |
1139 | struct drm_device *dev = dev_priv->dev; |
1140 | int pp_reg; | |
ea0760cf JB |
1141 | u32 val; |
1142 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1143 | bool locked = true; |
ea0760cf | 1144 | |
bedd4dba JN |
1145 | if (WARN_ON(HAS_DDI(dev))) |
1146 | return; | |
1147 | ||
1148 | if (HAS_PCH_SPLIT(dev)) { | |
1149 | u32 port_sel; | |
1150 | ||
ea0760cf | 1151 | pp_reg = PCH_PP_CONTROL; |
bedd4dba JN |
1152 | port_sel = I915_READ(PCH_PP_ON_DELAYS) & PANEL_PORT_SELECT_MASK; |
1153 | ||
1154 | if (port_sel == PANEL_PORT_SELECT_LVDS && | |
1155 | I915_READ(PCH_LVDS) & LVDS_PIPEB_SELECT) | |
1156 | panel_pipe = PIPE_B; | |
1157 | /* XXX: else fix for eDP */ | |
1158 | } else if (IS_VALLEYVIEW(dev)) { | |
1159 | /* presumably write lock depends on pipe, not port select */ | |
1160 | pp_reg = VLV_PIPE_PP_CONTROL(pipe); | |
1161 | panel_pipe = pipe; | |
ea0760cf JB |
1162 | } else { |
1163 | pp_reg = PP_CONTROL; | |
bedd4dba JN |
1164 | if (I915_READ(LVDS) & LVDS_PIPEB_SELECT) |
1165 | panel_pipe = PIPE_B; | |
ea0760cf JB |
1166 | } |
1167 | ||
1168 | val = I915_READ(pp_reg); | |
1169 | if (!(val & PANEL_POWER_ON) || | |
ec49ba2d | 1170 | ((val & PANEL_UNLOCK_MASK) == PANEL_UNLOCK_REGS)) |
ea0760cf JB |
1171 | locked = false; |
1172 | ||
ea0760cf JB |
1173 | WARN(panel_pipe == pipe && locked, |
1174 | "panel assertion failure, pipe %c regs locked\n", | |
9db4a9c7 | 1175 | pipe_name(pipe)); |
ea0760cf JB |
1176 | } |
1177 | ||
93ce0ba6 JN |
1178 | static void assert_cursor(struct drm_i915_private *dev_priv, |
1179 | enum pipe pipe, bool state) | |
1180 | { | |
1181 | struct drm_device *dev = dev_priv->dev; | |
1182 | bool cur_state; | |
1183 | ||
d9d82081 | 1184 | if (IS_845G(dev) || IS_I865G(dev)) |
93ce0ba6 | 1185 | cur_state = I915_READ(_CURACNTR) & CURSOR_ENABLE; |
d9d82081 | 1186 | else |
5efb3e28 | 1187 | cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE; |
93ce0ba6 JN |
1188 | |
1189 | WARN(cur_state != state, | |
1190 | "cursor on pipe %c assertion failure (expected %s, current %s)\n", | |
1191 | pipe_name(pipe), state_string(state), state_string(cur_state)); | |
1192 | } | |
1193 | #define assert_cursor_enabled(d, p) assert_cursor(d, p, true) | |
1194 | #define assert_cursor_disabled(d, p) assert_cursor(d, p, false) | |
1195 | ||
b840d907 JB |
1196 | void assert_pipe(struct drm_i915_private *dev_priv, |
1197 | enum pipe pipe, bool state) | |
b24e7179 JB |
1198 | { |
1199 | int reg; | |
1200 | u32 val; | |
63d7bbe9 | 1201 | bool cur_state; |
702e7a56 PZ |
1202 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1203 | pipe); | |
b24e7179 | 1204 | |
b6b5d049 VS |
1205 | /* if we need the pipe quirk it must be always on */ |
1206 | if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
1207 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
8e636784 DV |
1208 | state = true; |
1209 | ||
f458ebbc | 1210 | if (!intel_display_power_is_enabled(dev_priv, |
b97186f0 | 1211 | POWER_DOMAIN_TRANSCODER(cpu_transcoder))) { |
69310161 PZ |
1212 | cur_state = false; |
1213 | } else { | |
1214 | reg = PIPECONF(cpu_transcoder); | |
1215 | val = I915_READ(reg); | |
1216 | cur_state = !!(val & PIPECONF_ENABLE); | |
1217 | } | |
1218 | ||
63d7bbe9 JB |
1219 | WARN(cur_state != state, |
1220 | "pipe %c assertion failure (expected %s, current %s)\n", | |
9db4a9c7 | 1221 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1222 | } |
1223 | ||
931872fc CW |
1224 | static void assert_plane(struct drm_i915_private *dev_priv, |
1225 | enum plane plane, bool state) | |
b24e7179 JB |
1226 | { |
1227 | int reg; | |
1228 | u32 val; | |
931872fc | 1229 | bool cur_state; |
b24e7179 JB |
1230 | |
1231 | reg = DSPCNTR(plane); | |
1232 | val = I915_READ(reg); | |
931872fc CW |
1233 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
1234 | WARN(cur_state != state, | |
1235 | "plane %c assertion failure (expected %s, current %s)\n", | |
1236 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1237 | } |
1238 | ||
931872fc CW |
1239 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1240 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1241 | ||
b24e7179 JB |
1242 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1243 | enum pipe pipe) | |
1244 | { | |
653e1026 | 1245 | struct drm_device *dev = dev_priv->dev; |
b24e7179 JB |
1246 | int reg, i; |
1247 | u32 val; | |
1248 | int cur_pipe; | |
1249 | ||
653e1026 VS |
1250 | /* Primary planes are fixed to pipes on gen4+ */ |
1251 | if (INTEL_INFO(dev)->gen >= 4) { | |
28c05794 AJ |
1252 | reg = DSPCNTR(pipe); |
1253 | val = I915_READ(reg); | |
83f26f16 | 1254 | WARN(val & DISPLAY_PLANE_ENABLE, |
28c05794 AJ |
1255 | "plane %c assertion failure, should be disabled but not\n", |
1256 | plane_name(pipe)); | |
19ec1358 | 1257 | return; |
28c05794 | 1258 | } |
19ec1358 | 1259 | |
b24e7179 | 1260 | /* Need to check both planes against the pipe */ |
055e393f | 1261 | for_each_pipe(dev_priv, i) { |
b24e7179 JB |
1262 | reg = DSPCNTR(i); |
1263 | val = I915_READ(reg); | |
1264 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1265 | DISPPLANE_SEL_PIPE_SHIFT; | |
1266 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, | |
9db4a9c7 JB |
1267 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1268 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1269 | } |
1270 | } | |
1271 | ||
19332d7a JB |
1272 | static void assert_sprites_disabled(struct drm_i915_private *dev_priv, |
1273 | enum pipe pipe) | |
1274 | { | |
20674eef | 1275 | struct drm_device *dev = dev_priv->dev; |
1fe47785 | 1276 | int reg, sprite; |
19332d7a JB |
1277 | u32 val; |
1278 | ||
7feb8b88 DL |
1279 | if (INTEL_INFO(dev)->gen >= 9) { |
1280 | for_each_sprite(pipe, sprite) { | |
1281 | val = I915_READ(PLANE_CTL(pipe, sprite)); | |
1282 | WARN(val & PLANE_CTL_ENABLE, | |
1283 | "plane %d assertion failure, should be off on pipe %c but is still active\n", | |
1284 | sprite, pipe_name(pipe)); | |
1285 | } | |
1286 | } else if (IS_VALLEYVIEW(dev)) { | |
1fe47785 DL |
1287 | for_each_sprite(pipe, sprite) { |
1288 | reg = SPCNTR(pipe, sprite); | |
20674eef | 1289 | val = I915_READ(reg); |
83f26f16 | 1290 | WARN(val & SP_ENABLE, |
20674eef | 1291 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
1fe47785 | 1292 | sprite_name(pipe, sprite), pipe_name(pipe)); |
20674eef VS |
1293 | } |
1294 | } else if (INTEL_INFO(dev)->gen >= 7) { | |
1295 | reg = SPRCTL(pipe); | |
19332d7a | 1296 | val = I915_READ(reg); |
83f26f16 | 1297 | WARN(val & SPRITE_ENABLE, |
06da8da2 | 1298 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
20674eef VS |
1299 | plane_name(pipe), pipe_name(pipe)); |
1300 | } else if (INTEL_INFO(dev)->gen >= 5) { | |
1301 | reg = DVSCNTR(pipe); | |
19332d7a | 1302 | val = I915_READ(reg); |
83f26f16 | 1303 | WARN(val & DVS_ENABLE, |
06da8da2 | 1304 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
20674eef | 1305 | plane_name(pipe), pipe_name(pipe)); |
19332d7a JB |
1306 | } |
1307 | } | |
1308 | ||
08c71e5e VS |
1309 | static void assert_vblank_disabled(struct drm_crtc *crtc) |
1310 | { | |
1311 | if (WARN_ON(drm_crtc_vblank_get(crtc) == 0)) | |
1312 | drm_crtc_vblank_put(crtc); | |
1313 | } | |
1314 | ||
89eff4be | 1315 | static void ibx_assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
92f2584a JB |
1316 | { |
1317 | u32 val; | |
1318 | bool enabled; | |
1319 | ||
89eff4be | 1320 | WARN_ON(!(HAS_PCH_IBX(dev_priv->dev) || HAS_PCH_CPT(dev_priv->dev))); |
9d82aa17 | 1321 | |
92f2584a JB |
1322 | val = I915_READ(PCH_DREF_CONTROL); |
1323 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1324 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
1325 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); | |
1326 | } | |
1327 | ||
ab9412ba DV |
1328 | static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv, |
1329 | enum pipe pipe) | |
92f2584a JB |
1330 | { |
1331 | int reg; | |
1332 | u32 val; | |
1333 | bool enabled; | |
1334 | ||
ab9412ba | 1335 | reg = PCH_TRANSCONF(pipe); |
92f2584a JB |
1336 | val = I915_READ(reg); |
1337 | enabled = !!(val & TRANS_ENABLE); | |
9db4a9c7 JB |
1338 | WARN(enabled, |
1339 | "transcoder assertion failed, should be off on pipe %c but is still active\n", | |
1340 | pipe_name(pipe)); | |
92f2584a JB |
1341 | } |
1342 | ||
4e634389 KP |
1343 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1344 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1345 | { |
1346 | if ((val & DP_PORT_EN) == 0) | |
1347 | return false; | |
1348 | ||
1349 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1350 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); | |
1351 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); | |
1352 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) | |
1353 | return false; | |
44f37d1f CML |
1354 | } else if (IS_CHERRYVIEW(dev_priv->dev)) { |
1355 | if ((val & DP_PIPE_MASK_CHV) != DP_PIPE_SELECT_CHV(pipe)) | |
1356 | return false; | |
f0575e92 KP |
1357 | } else { |
1358 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1359 | return false; | |
1360 | } | |
1361 | return true; | |
1362 | } | |
1363 | ||
1519b995 KP |
1364 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1365 | enum pipe pipe, u32 val) | |
1366 | { | |
dc0fa718 | 1367 | if ((val & SDVO_ENABLE) == 0) |
1519b995 KP |
1368 | return false; |
1369 | ||
1370 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
dc0fa718 | 1371 | if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe)) |
1519b995 | 1372 | return false; |
44f37d1f CML |
1373 | } else if (IS_CHERRYVIEW(dev_priv->dev)) { |
1374 | if ((val & SDVO_PIPE_SEL_MASK_CHV) != SDVO_PIPE_SEL_CHV(pipe)) | |
1375 | return false; | |
1519b995 | 1376 | } else { |
dc0fa718 | 1377 | if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe)) |
1519b995 KP |
1378 | return false; |
1379 | } | |
1380 | return true; | |
1381 | } | |
1382 | ||
1383 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1384 | enum pipe pipe, u32 val) | |
1385 | { | |
1386 | if ((val & LVDS_PORT_EN) == 0) | |
1387 | return false; | |
1388 | ||
1389 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1390 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1391 | return false; | |
1392 | } else { | |
1393 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1394 | return false; | |
1395 | } | |
1396 | return true; | |
1397 | } | |
1398 | ||
1399 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1400 | enum pipe pipe, u32 val) | |
1401 | { | |
1402 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1403 | return false; | |
1404 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1405 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1406 | return false; | |
1407 | } else { | |
1408 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1409 | return false; | |
1410 | } | |
1411 | return true; | |
1412 | } | |
1413 | ||
291906f1 | 1414 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0575e92 | 1415 | enum pipe pipe, int reg, u32 port_sel) |
291906f1 | 1416 | { |
47a05eca | 1417 | u32 val = I915_READ(reg); |
4e634389 | 1418 | WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1419 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1420 | reg, pipe_name(pipe)); |
de9a35ab | 1421 | |
75c5da27 DV |
1422 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 |
1423 | && (val & DP_PIPEB_SELECT), | |
de9a35ab | 1424 | "IBX PCH dp port still using transcoder B\n"); |
291906f1 JB |
1425 | } |
1426 | ||
1427 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1428 | enum pipe pipe, int reg) | |
1429 | { | |
47a05eca | 1430 | u32 val = I915_READ(reg); |
b70ad586 | 1431 | WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1432 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1433 | reg, pipe_name(pipe)); |
de9a35ab | 1434 | |
dc0fa718 | 1435 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0 |
75c5da27 | 1436 | && (val & SDVO_PIPE_B_SELECT), |
de9a35ab | 1437 | "IBX PCH hdmi port still using transcoder B\n"); |
291906f1 JB |
1438 | } |
1439 | ||
1440 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1441 | enum pipe pipe) | |
1442 | { | |
1443 | int reg; | |
1444 | u32 val; | |
291906f1 | 1445 | |
f0575e92 KP |
1446 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1447 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1448 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1449 | |
1450 | reg = PCH_ADPA; | |
1451 | val = I915_READ(reg); | |
b70ad586 | 1452 | WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1453 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1454 | pipe_name(pipe)); |
291906f1 JB |
1455 | |
1456 | reg = PCH_LVDS; | |
1457 | val = I915_READ(reg); | |
b70ad586 | 1458 | WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1459 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1460 | pipe_name(pipe)); |
291906f1 | 1461 | |
e2debe91 PZ |
1462 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB); |
1463 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC); | |
1464 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID); | |
291906f1 JB |
1465 | } |
1466 | ||
40e9cf64 JB |
1467 | static void intel_init_dpio(struct drm_device *dev) |
1468 | { | |
1469 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1470 | ||
1471 | if (!IS_VALLEYVIEW(dev)) | |
1472 | return; | |
1473 | ||
a09caddd CML |
1474 | /* |
1475 | * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C), | |
1476 | * CHV x1 PHY (DP/HDMI D) | |
1477 | * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C) | |
1478 | */ | |
1479 | if (IS_CHERRYVIEW(dev)) { | |
1480 | DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO_2; | |
1481 | DPIO_PHY_IOSF_PORT(DPIO_PHY1) = IOSF_PORT_DPIO; | |
1482 | } else { | |
1483 | DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO; | |
1484 | } | |
5382f5f3 JB |
1485 | } |
1486 | ||
426115cf | 1487 | static void vlv_enable_pll(struct intel_crtc *crtc) |
87442f73 | 1488 | { |
426115cf DV |
1489 | struct drm_device *dev = crtc->base.dev; |
1490 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1491 | int reg = DPLL(crtc->pipe); | |
1492 | u32 dpll = crtc->config.dpll_hw_state.dpll; | |
87442f73 | 1493 | |
426115cf | 1494 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87442f73 DV |
1495 | |
1496 | /* No really, not for ILK+ */ | |
1497 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev)); | |
1498 | ||
1499 | /* PLL is protected by panel, make sure we can write it */ | |
6a9e7363 | 1500 | if (IS_MOBILE(dev_priv->dev)) |
426115cf | 1501 | assert_panel_unlocked(dev_priv, crtc->pipe); |
87442f73 | 1502 | |
426115cf DV |
1503 | I915_WRITE(reg, dpll); |
1504 | POSTING_READ(reg); | |
1505 | udelay(150); | |
1506 | ||
1507 | if (wait_for(((I915_READ(reg) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) | |
1508 | DRM_ERROR("DPLL %d failed to lock\n", crtc->pipe); | |
1509 | ||
1510 | I915_WRITE(DPLL_MD(crtc->pipe), crtc->config.dpll_hw_state.dpll_md); | |
1511 | POSTING_READ(DPLL_MD(crtc->pipe)); | |
87442f73 DV |
1512 | |
1513 | /* We do this three times for luck */ | |
426115cf | 1514 | I915_WRITE(reg, dpll); |
87442f73 DV |
1515 | POSTING_READ(reg); |
1516 | udelay(150); /* wait for warmup */ | |
426115cf | 1517 | I915_WRITE(reg, dpll); |
87442f73 DV |
1518 | POSTING_READ(reg); |
1519 | udelay(150); /* wait for warmup */ | |
426115cf | 1520 | I915_WRITE(reg, dpll); |
87442f73 DV |
1521 | POSTING_READ(reg); |
1522 | udelay(150); /* wait for warmup */ | |
1523 | } | |
1524 | ||
9d556c99 CML |
1525 | static void chv_enable_pll(struct intel_crtc *crtc) |
1526 | { | |
1527 | struct drm_device *dev = crtc->base.dev; | |
1528 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1529 | int pipe = crtc->pipe; | |
1530 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
9d556c99 CML |
1531 | u32 tmp; |
1532 | ||
1533 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
1534 | ||
1535 | BUG_ON(!IS_CHERRYVIEW(dev_priv->dev)); | |
1536 | ||
1537 | mutex_lock(&dev_priv->dpio_lock); | |
1538 | ||
1539 | /* Enable back the 10bit clock to display controller */ | |
1540 | tmp = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)); | |
1541 | tmp |= DPIO_DCLKP_EN; | |
1542 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), tmp); | |
1543 | ||
1544 | /* | |
1545 | * Need to wait > 100ns between dclkp clock enable bit and PLL enable. | |
1546 | */ | |
1547 | udelay(1); | |
1548 | ||
1549 | /* Enable PLL */ | |
a11b0703 | 1550 | I915_WRITE(DPLL(pipe), crtc->config.dpll_hw_state.dpll); |
9d556c99 CML |
1551 | |
1552 | /* Check PLL is locked */ | |
a11b0703 | 1553 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) |
9d556c99 CML |
1554 | DRM_ERROR("PLL %d failed to lock\n", pipe); |
1555 | ||
a11b0703 VS |
1556 | /* not sure when this should be written */ |
1557 | I915_WRITE(DPLL_MD(pipe), crtc->config.dpll_hw_state.dpll_md); | |
1558 | POSTING_READ(DPLL_MD(pipe)); | |
1559 | ||
9d556c99 CML |
1560 | mutex_unlock(&dev_priv->dpio_lock); |
1561 | } | |
1562 | ||
1c4e0274 VS |
1563 | static int intel_num_dvo_pipes(struct drm_device *dev) |
1564 | { | |
1565 | struct intel_crtc *crtc; | |
1566 | int count = 0; | |
1567 | ||
1568 | for_each_intel_crtc(dev, crtc) | |
1569 | count += crtc->active && | |
1570 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DVO); | |
1571 | ||
1572 | return count; | |
1573 | } | |
1574 | ||
66e3d5c0 | 1575 | static void i9xx_enable_pll(struct intel_crtc *crtc) |
63d7bbe9 | 1576 | { |
66e3d5c0 DV |
1577 | struct drm_device *dev = crtc->base.dev; |
1578 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1579 | int reg = DPLL(crtc->pipe); | |
1580 | u32 dpll = crtc->config.dpll_hw_state.dpll; | |
63d7bbe9 | 1581 | |
66e3d5c0 | 1582 | assert_pipe_disabled(dev_priv, crtc->pipe); |
58c6eaa2 | 1583 | |
63d7bbe9 | 1584 | /* No really, not for ILK+ */ |
3d13ef2e | 1585 | BUG_ON(INTEL_INFO(dev)->gen >= 5); |
63d7bbe9 JB |
1586 | |
1587 | /* PLL is protected by panel, make sure we can write it */ | |
66e3d5c0 DV |
1588 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
1589 | assert_panel_unlocked(dev_priv, crtc->pipe); | |
63d7bbe9 | 1590 | |
1c4e0274 VS |
1591 | /* Enable DVO 2x clock on both PLLs if necessary */ |
1592 | if (IS_I830(dev) && intel_num_dvo_pipes(dev) > 0) { | |
1593 | /* | |
1594 | * It appears to be important that we don't enable this | |
1595 | * for the current pipe before otherwise configuring the | |
1596 | * PLL. No idea how this should be handled if multiple | |
1597 | * DVO outputs are enabled simultaneosly. | |
1598 | */ | |
1599 | dpll |= DPLL_DVO_2X_MODE; | |
1600 | I915_WRITE(DPLL(!crtc->pipe), | |
1601 | I915_READ(DPLL(!crtc->pipe)) | DPLL_DVO_2X_MODE); | |
1602 | } | |
66e3d5c0 DV |
1603 | |
1604 | /* Wait for the clocks to stabilize. */ | |
1605 | POSTING_READ(reg); | |
1606 | udelay(150); | |
1607 | ||
1608 | if (INTEL_INFO(dev)->gen >= 4) { | |
1609 | I915_WRITE(DPLL_MD(crtc->pipe), | |
1610 | crtc->config.dpll_hw_state.dpll_md); | |
1611 | } else { | |
1612 | /* The pixel multiplier can only be updated once the | |
1613 | * DPLL is enabled and the clocks are stable. | |
1614 | * | |
1615 | * So write it again. | |
1616 | */ | |
1617 | I915_WRITE(reg, dpll); | |
1618 | } | |
63d7bbe9 JB |
1619 | |
1620 | /* We do this three times for luck */ | |
66e3d5c0 | 1621 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1622 | POSTING_READ(reg); |
1623 | udelay(150); /* wait for warmup */ | |
66e3d5c0 | 1624 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1625 | POSTING_READ(reg); |
1626 | udelay(150); /* wait for warmup */ | |
66e3d5c0 | 1627 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1628 | POSTING_READ(reg); |
1629 | udelay(150); /* wait for warmup */ | |
1630 | } | |
1631 | ||
1632 | /** | |
50b44a44 | 1633 | * i9xx_disable_pll - disable a PLL |
63d7bbe9 JB |
1634 | * @dev_priv: i915 private structure |
1635 | * @pipe: pipe PLL to disable | |
1636 | * | |
1637 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1638 | * | |
1639 | * Note! This is for pre-ILK only. | |
1640 | */ | |
1c4e0274 | 1641 | static void i9xx_disable_pll(struct intel_crtc *crtc) |
63d7bbe9 | 1642 | { |
1c4e0274 VS |
1643 | struct drm_device *dev = crtc->base.dev; |
1644 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1645 | enum pipe pipe = crtc->pipe; | |
1646 | ||
1647 | /* Disable DVO 2x clock on both PLLs if necessary */ | |
1648 | if (IS_I830(dev) && | |
1649 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DVO) && | |
1650 | intel_num_dvo_pipes(dev) == 1) { | |
1651 | I915_WRITE(DPLL(PIPE_B), | |
1652 | I915_READ(DPLL(PIPE_B)) & ~DPLL_DVO_2X_MODE); | |
1653 | I915_WRITE(DPLL(PIPE_A), | |
1654 | I915_READ(DPLL(PIPE_A)) & ~DPLL_DVO_2X_MODE); | |
1655 | } | |
1656 | ||
b6b5d049 VS |
1657 | /* Don't disable pipe or pipe PLLs if needed */ |
1658 | if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
1659 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
63d7bbe9 JB |
1660 | return; |
1661 | ||
1662 | /* Make sure the pipe isn't still relying on us */ | |
1663 | assert_pipe_disabled(dev_priv, pipe); | |
1664 | ||
50b44a44 DV |
1665 | I915_WRITE(DPLL(pipe), 0); |
1666 | POSTING_READ(DPLL(pipe)); | |
63d7bbe9 JB |
1667 | } |
1668 | ||
f6071166 JB |
1669 | static void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
1670 | { | |
1671 | u32 val = 0; | |
1672 | ||
1673 | /* Make sure the pipe isn't still relying on us */ | |
1674 | assert_pipe_disabled(dev_priv, pipe); | |
1675 | ||
e5cbfbfb ID |
1676 | /* |
1677 | * Leave integrated clock source and reference clock enabled for pipe B. | |
1678 | * The latter is needed for VGA hotplug / manual detection. | |
1679 | */ | |
f6071166 | 1680 | if (pipe == PIPE_B) |
e5cbfbfb | 1681 | val = DPLL_INTEGRATED_CRI_CLK_VLV | DPLL_REFA_CLK_ENABLE_VLV; |
f6071166 JB |
1682 | I915_WRITE(DPLL(pipe), val); |
1683 | POSTING_READ(DPLL(pipe)); | |
076ed3b2 CML |
1684 | |
1685 | } | |
1686 | ||
1687 | static void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1688 | { | |
d752048d | 1689 | enum dpio_channel port = vlv_pipe_to_channel(pipe); |
076ed3b2 CML |
1690 | u32 val; |
1691 | ||
a11b0703 VS |
1692 | /* Make sure the pipe isn't still relying on us */ |
1693 | assert_pipe_disabled(dev_priv, pipe); | |
076ed3b2 | 1694 | |
a11b0703 | 1695 | /* Set PLL en = 0 */ |
d17ec4ce | 1696 | val = DPLL_SSC_REF_CLOCK_CHV | DPLL_REFA_CLK_ENABLE_VLV; |
a11b0703 VS |
1697 | if (pipe != PIPE_A) |
1698 | val |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
1699 | I915_WRITE(DPLL(pipe), val); | |
1700 | POSTING_READ(DPLL(pipe)); | |
d752048d VS |
1701 | |
1702 | mutex_lock(&dev_priv->dpio_lock); | |
1703 | ||
1704 | /* Disable 10bit clock to display controller */ | |
1705 | val = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)); | |
1706 | val &= ~DPIO_DCLKP_EN; | |
1707 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), val); | |
1708 | ||
61407f6d VS |
1709 | /* disable left/right clock distribution */ |
1710 | if (pipe != PIPE_B) { | |
1711 | val = vlv_dpio_read(dev_priv, pipe, _CHV_CMN_DW5_CH0); | |
1712 | val &= ~(CHV_BUFLEFTENA1_MASK | CHV_BUFRIGHTENA1_MASK); | |
1713 | vlv_dpio_write(dev_priv, pipe, _CHV_CMN_DW5_CH0, val); | |
1714 | } else { | |
1715 | val = vlv_dpio_read(dev_priv, pipe, _CHV_CMN_DW1_CH1); | |
1716 | val &= ~(CHV_BUFLEFTENA2_MASK | CHV_BUFRIGHTENA2_MASK); | |
1717 | vlv_dpio_write(dev_priv, pipe, _CHV_CMN_DW1_CH1, val); | |
1718 | } | |
1719 | ||
d752048d | 1720 | mutex_unlock(&dev_priv->dpio_lock); |
f6071166 JB |
1721 | } |
1722 | ||
e4607fcf CML |
1723 | void vlv_wait_port_ready(struct drm_i915_private *dev_priv, |
1724 | struct intel_digital_port *dport) | |
89b667f8 JB |
1725 | { |
1726 | u32 port_mask; | |
00fc31b7 | 1727 | int dpll_reg; |
89b667f8 | 1728 | |
e4607fcf CML |
1729 | switch (dport->port) { |
1730 | case PORT_B: | |
89b667f8 | 1731 | port_mask = DPLL_PORTB_READY_MASK; |
00fc31b7 | 1732 | dpll_reg = DPLL(0); |
e4607fcf CML |
1733 | break; |
1734 | case PORT_C: | |
89b667f8 | 1735 | port_mask = DPLL_PORTC_READY_MASK; |
00fc31b7 CML |
1736 | dpll_reg = DPLL(0); |
1737 | break; | |
1738 | case PORT_D: | |
1739 | port_mask = DPLL_PORTD_READY_MASK; | |
1740 | dpll_reg = DPIO_PHY_STATUS; | |
e4607fcf CML |
1741 | break; |
1742 | default: | |
1743 | BUG(); | |
1744 | } | |
89b667f8 | 1745 | |
00fc31b7 | 1746 | if (wait_for((I915_READ(dpll_reg) & port_mask) == 0, 1000)) |
89b667f8 | 1747 | WARN(1, "timed out waiting for port %c ready: 0x%08x\n", |
00fc31b7 | 1748 | port_name(dport->port), I915_READ(dpll_reg)); |
89b667f8 JB |
1749 | } |
1750 | ||
b14b1055 DV |
1751 | static void intel_prepare_shared_dpll(struct intel_crtc *crtc) |
1752 | { | |
1753 | struct drm_device *dev = crtc->base.dev; | |
1754 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1755 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); | |
1756 | ||
be19f0ff CW |
1757 | if (WARN_ON(pll == NULL)) |
1758 | return; | |
1759 | ||
b14b1055 DV |
1760 | WARN_ON(!pll->refcount); |
1761 | if (pll->active == 0) { | |
1762 | DRM_DEBUG_DRIVER("setting up %s\n", pll->name); | |
1763 | WARN_ON(pll->on); | |
1764 | assert_shared_dpll_disabled(dev_priv, pll); | |
1765 | ||
1766 | pll->mode_set(dev_priv, pll); | |
1767 | } | |
1768 | } | |
1769 | ||
92f2584a | 1770 | /** |
85b3894f | 1771 | * intel_enable_shared_dpll - enable PCH PLL |
92f2584a JB |
1772 | * @dev_priv: i915 private structure |
1773 | * @pipe: pipe PLL to enable | |
1774 | * | |
1775 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1776 | * drives the transcoder clock. | |
1777 | */ | |
85b3894f | 1778 | static void intel_enable_shared_dpll(struct intel_crtc *crtc) |
92f2584a | 1779 | { |
3d13ef2e DL |
1780 | struct drm_device *dev = crtc->base.dev; |
1781 | struct drm_i915_private *dev_priv = dev->dev_private; | |
e2b78267 | 1782 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); |
92f2584a | 1783 | |
87a875bb | 1784 | if (WARN_ON(pll == NULL)) |
48da64a8 CW |
1785 | return; |
1786 | ||
1787 | if (WARN_ON(pll->refcount == 0)) | |
1788 | return; | |
ee7b9f93 | 1789 | |
74dd6928 | 1790 | DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n", |
46edb027 | 1791 | pll->name, pll->active, pll->on, |
e2b78267 | 1792 | crtc->base.base.id); |
92f2584a | 1793 | |
cdbd2316 DV |
1794 | if (pll->active++) { |
1795 | WARN_ON(!pll->on); | |
e9d6944e | 1796 | assert_shared_dpll_enabled(dev_priv, pll); |
ee7b9f93 JB |
1797 | return; |
1798 | } | |
f4a091c7 | 1799 | WARN_ON(pll->on); |
ee7b9f93 | 1800 | |
bd2bb1b9 PZ |
1801 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); |
1802 | ||
46edb027 | 1803 | DRM_DEBUG_KMS("enabling %s\n", pll->name); |
e7b903d2 | 1804 | pll->enable(dev_priv, pll); |
ee7b9f93 | 1805 | pll->on = true; |
92f2584a JB |
1806 | } |
1807 | ||
f6daaec2 | 1808 | static void intel_disable_shared_dpll(struct intel_crtc *crtc) |
92f2584a | 1809 | { |
3d13ef2e DL |
1810 | struct drm_device *dev = crtc->base.dev; |
1811 | struct drm_i915_private *dev_priv = dev->dev_private; | |
e2b78267 | 1812 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); |
4c609cb8 | 1813 | |
92f2584a | 1814 | /* PCH only available on ILK+ */ |
3d13ef2e | 1815 | BUG_ON(INTEL_INFO(dev)->gen < 5); |
87a875bb | 1816 | if (WARN_ON(pll == NULL)) |
ee7b9f93 | 1817 | return; |
92f2584a | 1818 | |
48da64a8 CW |
1819 | if (WARN_ON(pll->refcount == 0)) |
1820 | return; | |
7a419866 | 1821 | |
46edb027 DV |
1822 | DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n", |
1823 | pll->name, pll->active, pll->on, | |
e2b78267 | 1824 | crtc->base.base.id); |
7a419866 | 1825 | |
48da64a8 | 1826 | if (WARN_ON(pll->active == 0)) { |
e9d6944e | 1827 | assert_shared_dpll_disabled(dev_priv, pll); |
48da64a8 CW |
1828 | return; |
1829 | } | |
1830 | ||
e9d6944e | 1831 | assert_shared_dpll_enabled(dev_priv, pll); |
f4a091c7 | 1832 | WARN_ON(!pll->on); |
cdbd2316 | 1833 | if (--pll->active) |
7a419866 | 1834 | return; |
ee7b9f93 | 1835 | |
46edb027 | 1836 | DRM_DEBUG_KMS("disabling %s\n", pll->name); |
e7b903d2 | 1837 | pll->disable(dev_priv, pll); |
ee7b9f93 | 1838 | pll->on = false; |
bd2bb1b9 PZ |
1839 | |
1840 | intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS); | |
92f2584a JB |
1841 | } |
1842 | ||
b8a4f404 PZ |
1843 | static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
1844 | enum pipe pipe) | |
040484af | 1845 | { |
23670b32 | 1846 | struct drm_device *dev = dev_priv->dev; |
7c26e5c6 | 1847 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
e2b78267 | 1848 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
23670b32 | 1849 | uint32_t reg, val, pipeconf_val; |
040484af JB |
1850 | |
1851 | /* PCH only available on ILK+ */ | |
55522f37 | 1852 | BUG_ON(!HAS_PCH_SPLIT(dev)); |
040484af JB |
1853 | |
1854 | /* Make sure PCH DPLL is enabled */ | |
e72f9fbf | 1855 | assert_shared_dpll_enabled(dev_priv, |
e9d6944e | 1856 | intel_crtc_to_shared_dpll(intel_crtc)); |
040484af JB |
1857 | |
1858 | /* FDI must be feeding us bits for PCH ports */ | |
1859 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1860 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1861 | ||
23670b32 DV |
1862 | if (HAS_PCH_CPT(dev)) { |
1863 | /* Workaround: Set the timing override bit before enabling the | |
1864 | * pch transcoder. */ | |
1865 | reg = TRANS_CHICKEN2(pipe); | |
1866 | val = I915_READ(reg); | |
1867 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1868 | I915_WRITE(reg, val); | |
59c859d6 | 1869 | } |
23670b32 | 1870 | |
ab9412ba | 1871 | reg = PCH_TRANSCONF(pipe); |
040484af | 1872 | val = I915_READ(reg); |
5f7f726d | 1873 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1874 | |
1875 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1876 | /* | |
1877 | * make the BPC in transcoder be consistent with | |
1878 | * that in pipeconf reg. | |
1879 | */ | |
dfd07d72 DV |
1880 | val &= ~PIPECONF_BPC_MASK; |
1881 | val |= pipeconf_val & PIPECONF_BPC_MASK; | |
e9bcff5c | 1882 | } |
5f7f726d PZ |
1883 | |
1884 | val &= ~TRANS_INTERLACE_MASK; | |
1885 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 PZ |
1886 | if (HAS_PCH_IBX(dev_priv->dev) && |
1887 | intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) | |
1888 | val |= TRANS_LEGACY_INTERLACED_ILK; | |
1889 | else | |
1890 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1891 | else |
1892 | val |= TRANS_PROGRESSIVE; | |
1893 | ||
040484af JB |
1894 | I915_WRITE(reg, val | TRANS_ENABLE); |
1895 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
4bb6f1f3 | 1896 | DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe)); |
040484af JB |
1897 | } |
1898 | ||
8fb033d7 | 1899 | static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
937bb610 | 1900 | enum transcoder cpu_transcoder) |
040484af | 1901 | { |
8fb033d7 | 1902 | u32 val, pipeconf_val; |
8fb033d7 PZ |
1903 | |
1904 | /* PCH only available on ILK+ */ | |
55522f37 | 1905 | BUG_ON(!HAS_PCH_SPLIT(dev_priv->dev)); |
8fb033d7 | 1906 | |
8fb033d7 | 1907 | /* FDI must be feeding us bits for PCH ports */ |
1a240d4d | 1908 | assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder); |
937bb610 | 1909 | assert_fdi_rx_enabled(dev_priv, TRANSCODER_A); |
8fb033d7 | 1910 | |
223a6fdf PZ |
1911 | /* Workaround: set timing override bit. */ |
1912 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 1913 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf PZ |
1914 | I915_WRITE(_TRANSA_CHICKEN2, val); |
1915 | ||
25f3ef11 | 1916 | val = TRANS_ENABLE; |
937bb610 | 1917 | pipeconf_val = I915_READ(PIPECONF(cpu_transcoder)); |
8fb033d7 | 1918 | |
9a76b1c6 PZ |
1919 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) == |
1920 | PIPECONF_INTERLACED_ILK) | |
a35f2679 | 1921 | val |= TRANS_INTERLACED; |
8fb033d7 PZ |
1922 | else |
1923 | val |= TRANS_PROGRESSIVE; | |
1924 | ||
ab9412ba DV |
1925 | I915_WRITE(LPT_TRANSCONF, val); |
1926 | if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100)) | |
937bb610 | 1927 | DRM_ERROR("Failed to enable PCH transcoder\n"); |
8fb033d7 PZ |
1928 | } |
1929 | ||
b8a4f404 PZ |
1930 | static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv, |
1931 | enum pipe pipe) | |
040484af | 1932 | { |
23670b32 DV |
1933 | struct drm_device *dev = dev_priv->dev; |
1934 | uint32_t reg, val; | |
040484af JB |
1935 | |
1936 | /* FDI relies on the transcoder */ | |
1937 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1938 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1939 | ||
291906f1 JB |
1940 | /* Ports must be off as well */ |
1941 | assert_pch_ports_disabled(dev_priv, pipe); | |
1942 | ||
ab9412ba | 1943 | reg = PCH_TRANSCONF(pipe); |
040484af JB |
1944 | val = I915_READ(reg); |
1945 | val &= ~TRANS_ENABLE; | |
1946 | I915_WRITE(reg, val); | |
1947 | /* wait for PCH transcoder off, transcoder state */ | |
1948 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4bb6f1f3 | 1949 | DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe)); |
23670b32 DV |
1950 | |
1951 | if (!HAS_PCH_IBX(dev)) { | |
1952 | /* Workaround: Clear the timing override chicken bit again. */ | |
1953 | reg = TRANS_CHICKEN2(pipe); | |
1954 | val = I915_READ(reg); | |
1955 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1956 | I915_WRITE(reg, val); | |
1957 | } | |
040484af JB |
1958 | } |
1959 | ||
ab4d966c | 1960 | static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv) |
8fb033d7 | 1961 | { |
8fb033d7 PZ |
1962 | u32 val; |
1963 | ||
ab9412ba | 1964 | val = I915_READ(LPT_TRANSCONF); |
8fb033d7 | 1965 | val &= ~TRANS_ENABLE; |
ab9412ba | 1966 | I915_WRITE(LPT_TRANSCONF, val); |
8fb033d7 | 1967 | /* wait for PCH transcoder off, transcoder state */ |
ab9412ba | 1968 | if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50)) |
8a52fd9f | 1969 | DRM_ERROR("Failed to disable PCH transcoder\n"); |
223a6fdf PZ |
1970 | |
1971 | /* Workaround: clear timing override bit. */ | |
1972 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 1973 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf | 1974 | I915_WRITE(_TRANSA_CHICKEN2, val); |
040484af JB |
1975 | } |
1976 | ||
b24e7179 | 1977 | /** |
309cfea8 | 1978 | * intel_enable_pipe - enable a pipe, asserting requirements |
0372264a | 1979 | * @crtc: crtc responsible for the pipe |
b24e7179 | 1980 | * |
0372264a | 1981 | * Enable @crtc's pipe, making sure that various hardware specific requirements |
b24e7179 | 1982 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. |
b24e7179 | 1983 | */ |
e1fdc473 | 1984 | static void intel_enable_pipe(struct intel_crtc *crtc) |
b24e7179 | 1985 | { |
0372264a PZ |
1986 | struct drm_device *dev = crtc->base.dev; |
1987 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1988 | enum pipe pipe = crtc->pipe; | |
702e7a56 PZ |
1989 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1990 | pipe); | |
1a240d4d | 1991 | enum pipe pch_transcoder; |
b24e7179 JB |
1992 | int reg; |
1993 | u32 val; | |
1994 | ||
58c6eaa2 | 1995 | assert_planes_disabled(dev_priv, pipe); |
93ce0ba6 | 1996 | assert_cursor_disabled(dev_priv, pipe); |
58c6eaa2 DV |
1997 | assert_sprites_disabled(dev_priv, pipe); |
1998 | ||
681e5811 | 1999 | if (HAS_PCH_LPT(dev_priv->dev)) |
cc391bbb PZ |
2000 | pch_transcoder = TRANSCODER_A; |
2001 | else | |
2002 | pch_transcoder = pipe; | |
2003 | ||
b24e7179 JB |
2004 | /* |
2005 | * A pipe without a PLL won't actually be able to drive bits from | |
2006 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
2007 | * need the check. | |
2008 | */ | |
2009 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
fbf3218a | 2010 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DSI)) |
23538ef1 JN |
2011 | assert_dsi_pll_enabled(dev_priv); |
2012 | else | |
2013 | assert_pll_enabled(dev_priv, pipe); | |
040484af | 2014 | else { |
30421c4f | 2015 | if (crtc->config.has_pch_encoder) { |
040484af | 2016 | /* if driving the PCH, we need FDI enabled */ |
cc391bbb | 2017 | assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder); |
1a240d4d DV |
2018 | assert_fdi_tx_pll_enabled(dev_priv, |
2019 | (enum pipe) cpu_transcoder); | |
040484af JB |
2020 | } |
2021 | /* FIXME: assert CPU port conditions for SNB+ */ | |
2022 | } | |
b24e7179 | 2023 | |
702e7a56 | 2024 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 2025 | val = I915_READ(reg); |
7ad25d48 | 2026 | if (val & PIPECONF_ENABLE) { |
b6b5d049 VS |
2027 | WARN_ON(!((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
2028 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))); | |
00d70b15 | 2029 | return; |
7ad25d48 | 2030 | } |
00d70b15 CW |
2031 | |
2032 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
851855d8 | 2033 | POSTING_READ(reg); |
b24e7179 JB |
2034 | } |
2035 | ||
2036 | /** | |
309cfea8 | 2037 | * intel_disable_pipe - disable a pipe, asserting requirements |
575f7ab7 | 2038 | * @crtc: crtc whose pipes is to be disabled |
b24e7179 | 2039 | * |
575f7ab7 VS |
2040 | * Disable the pipe of @crtc, making sure that various hardware |
2041 | * specific requirements are met, if applicable, e.g. plane | |
2042 | * disabled, panel fitter off, etc. | |
b24e7179 JB |
2043 | * |
2044 | * Will wait until the pipe has shut down before returning. | |
2045 | */ | |
575f7ab7 | 2046 | static void intel_disable_pipe(struct intel_crtc *crtc) |
b24e7179 | 2047 | { |
575f7ab7 VS |
2048 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; |
2049 | enum transcoder cpu_transcoder = crtc->config.cpu_transcoder; | |
2050 | enum pipe pipe = crtc->pipe; | |
b24e7179 JB |
2051 | int reg; |
2052 | u32 val; | |
2053 | ||
2054 | /* | |
2055 | * Make sure planes won't keep trying to pump pixels to us, | |
2056 | * or we might hang the display. | |
2057 | */ | |
2058 | assert_planes_disabled(dev_priv, pipe); | |
93ce0ba6 | 2059 | assert_cursor_disabled(dev_priv, pipe); |
19332d7a | 2060 | assert_sprites_disabled(dev_priv, pipe); |
b24e7179 | 2061 | |
702e7a56 | 2062 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 2063 | val = I915_READ(reg); |
00d70b15 CW |
2064 | if ((val & PIPECONF_ENABLE) == 0) |
2065 | return; | |
2066 | ||
67adc644 VS |
2067 | /* |
2068 | * Double wide has implications for planes | |
2069 | * so best keep it disabled when not needed. | |
2070 | */ | |
2071 | if (crtc->config.double_wide) | |
2072 | val &= ~PIPECONF_DOUBLE_WIDE; | |
2073 | ||
2074 | /* Don't disable pipe or pipe PLLs if needed */ | |
b6b5d049 VS |
2075 | if (!(pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) && |
2076 | !(pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
67adc644 VS |
2077 | val &= ~PIPECONF_ENABLE; |
2078 | ||
2079 | I915_WRITE(reg, val); | |
2080 | if ((val & PIPECONF_ENABLE) == 0) | |
2081 | intel_wait_for_pipe_off(crtc); | |
b24e7179 JB |
2082 | } |
2083 | ||
d74362c9 KP |
2084 | /* |
2085 | * Plane regs are double buffered, going from enabled->disabled needs a | |
2086 | * trigger in order to latch. The display address reg provides this. | |
2087 | */ | |
1dba99f4 VS |
2088 | void intel_flush_primary_plane(struct drm_i915_private *dev_priv, |
2089 | enum plane plane) | |
d74362c9 | 2090 | { |
3d13ef2e DL |
2091 | struct drm_device *dev = dev_priv->dev; |
2092 | u32 reg = INTEL_INFO(dev)->gen >= 4 ? DSPSURF(plane) : DSPADDR(plane); | |
1dba99f4 VS |
2093 | |
2094 | I915_WRITE(reg, I915_READ(reg)); | |
2095 | POSTING_READ(reg); | |
d74362c9 KP |
2096 | } |
2097 | ||
b24e7179 | 2098 | /** |
262ca2b0 | 2099 | * intel_enable_primary_hw_plane - enable the primary plane on a given pipe |
fdd508a6 VS |
2100 | * @plane: plane to be enabled |
2101 | * @crtc: crtc for the plane | |
b24e7179 | 2102 | * |
fdd508a6 | 2103 | * Enable @plane on @crtc, making sure that the pipe is running first. |
b24e7179 | 2104 | */ |
fdd508a6 VS |
2105 | static void intel_enable_primary_hw_plane(struct drm_plane *plane, |
2106 | struct drm_crtc *crtc) | |
b24e7179 | 2107 | { |
fdd508a6 VS |
2108 | struct drm_device *dev = plane->dev; |
2109 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2110 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
b24e7179 JB |
2111 | |
2112 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
fdd508a6 | 2113 | assert_pipe_enabled(dev_priv, intel_crtc->pipe); |
b24e7179 | 2114 | |
98ec7739 VS |
2115 | if (intel_crtc->primary_enabled) |
2116 | return; | |
0037f71c | 2117 | |
4c445e0e | 2118 | intel_crtc->primary_enabled = true; |
939c2fe8 | 2119 | |
fdd508a6 VS |
2120 | dev_priv->display.update_primary_plane(crtc, plane->fb, |
2121 | crtc->x, crtc->y); | |
33c3b0d1 VS |
2122 | |
2123 | /* | |
2124 | * BDW signals flip done immediately if the plane | |
2125 | * is disabled, even if the plane enable is already | |
2126 | * armed to occur at the next vblank :( | |
2127 | */ | |
2128 | if (IS_BROADWELL(dev)) | |
2129 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
b24e7179 JB |
2130 | } |
2131 | ||
b24e7179 | 2132 | /** |
262ca2b0 | 2133 | * intel_disable_primary_hw_plane - disable the primary hardware plane |
fdd508a6 VS |
2134 | * @plane: plane to be disabled |
2135 | * @crtc: crtc for the plane | |
b24e7179 | 2136 | * |
fdd508a6 | 2137 | * Disable @plane on @crtc, making sure that the pipe is running first. |
b24e7179 | 2138 | */ |
fdd508a6 VS |
2139 | static void intel_disable_primary_hw_plane(struct drm_plane *plane, |
2140 | struct drm_crtc *crtc) | |
b24e7179 | 2141 | { |
fdd508a6 VS |
2142 | struct drm_device *dev = plane->dev; |
2143 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2144 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2145 | ||
2146 | assert_pipe_enabled(dev_priv, intel_crtc->pipe); | |
b24e7179 | 2147 | |
98ec7739 VS |
2148 | if (!intel_crtc->primary_enabled) |
2149 | return; | |
0037f71c | 2150 | |
4c445e0e | 2151 | intel_crtc->primary_enabled = false; |
939c2fe8 | 2152 | |
fdd508a6 VS |
2153 | dev_priv->display.update_primary_plane(crtc, plane->fb, |
2154 | crtc->x, crtc->y); | |
b24e7179 JB |
2155 | } |
2156 | ||
693db184 CW |
2157 | static bool need_vtd_wa(struct drm_device *dev) |
2158 | { | |
2159 | #ifdef CONFIG_INTEL_IOMMU | |
2160 | if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped) | |
2161 | return true; | |
2162 | #endif | |
2163 | return false; | |
2164 | } | |
2165 | ||
a57ce0b2 JB |
2166 | static int intel_align_height(struct drm_device *dev, int height, bool tiled) |
2167 | { | |
2168 | int tile_height; | |
2169 | ||
2170 | tile_height = tiled ? (IS_GEN2(dev) ? 16 : 8) : 1; | |
2171 | return ALIGN(height, tile_height); | |
2172 | } | |
2173 | ||
127bd2ac | 2174 | int |
48b956c5 | 2175 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
05394f39 | 2176 | struct drm_i915_gem_object *obj, |
a4872ba6 | 2177 | struct intel_engine_cs *pipelined) |
6b95a207 | 2178 | { |
ce453d81 | 2179 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
2180 | u32 alignment; |
2181 | int ret; | |
2182 | ||
ebcdd39e MR |
2183 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
2184 | ||
05394f39 | 2185 | switch (obj->tiling_mode) { |
6b95a207 | 2186 | case I915_TILING_NONE: |
1fada4cc DL |
2187 | if (INTEL_INFO(dev)->gen >= 9) |
2188 | alignment = 256 * 1024; | |
2189 | else if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) | |
534843da | 2190 | alignment = 128 * 1024; |
a6c45cf0 | 2191 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
2192 | alignment = 4 * 1024; |
2193 | else | |
2194 | alignment = 64 * 1024; | |
6b95a207 KH |
2195 | break; |
2196 | case I915_TILING_X: | |
1fada4cc DL |
2197 | if (INTEL_INFO(dev)->gen >= 9) |
2198 | alignment = 256 * 1024; | |
2199 | else { | |
2200 | /* pin() will align the object as required by fence */ | |
2201 | alignment = 0; | |
2202 | } | |
6b95a207 KH |
2203 | break; |
2204 | case I915_TILING_Y: | |
80075d49 | 2205 | WARN(1, "Y tiled bo slipped through, driver bug!\n"); |
6b95a207 KH |
2206 | return -EINVAL; |
2207 | default: | |
2208 | BUG(); | |
2209 | } | |
2210 | ||
693db184 CW |
2211 | /* Note that the w/a also requires 64 PTE of padding following the |
2212 | * bo. We currently fill all unused PTE with the shadow page and so | |
2213 | * we should always have valid PTE following the scanout preventing | |
2214 | * the VT-d warning. | |
2215 | */ | |
2216 | if (need_vtd_wa(dev) && alignment < 256 * 1024) | |
2217 | alignment = 256 * 1024; | |
2218 | ||
d6dd6843 PZ |
2219 | /* |
2220 | * Global gtt pte registers are special registers which actually forward | |
2221 | * writes to a chunk of system memory. Which means that there is no risk | |
2222 | * that the register values disappear as soon as we call | |
2223 | * intel_runtime_pm_put(), so it is correct to wrap only the | |
2224 | * pin/unpin/fence and not more. | |
2225 | */ | |
2226 | intel_runtime_pm_get(dev_priv); | |
2227 | ||
ce453d81 | 2228 | dev_priv->mm.interruptible = false; |
2da3b9b9 | 2229 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
48b956c5 | 2230 | if (ret) |
ce453d81 | 2231 | goto err_interruptible; |
6b95a207 KH |
2232 | |
2233 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
2234 | * fence, whereas 965+ only requires a fence if using | |
2235 | * framebuffer compression. For simplicity, we always install | |
2236 | * a fence as the cost is not that onerous. | |
2237 | */ | |
06d98131 | 2238 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
2239 | if (ret) |
2240 | goto err_unpin; | |
1690e1eb | 2241 | |
9a5a53b3 | 2242 | i915_gem_object_pin_fence(obj); |
6b95a207 | 2243 | |
ce453d81 | 2244 | dev_priv->mm.interruptible = true; |
d6dd6843 | 2245 | intel_runtime_pm_put(dev_priv); |
6b95a207 | 2246 | return 0; |
48b956c5 CW |
2247 | |
2248 | err_unpin: | |
cc98b413 | 2249 | i915_gem_object_unpin_from_display_plane(obj); |
ce453d81 CW |
2250 | err_interruptible: |
2251 | dev_priv->mm.interruptible = true; | |
d6dd6843 | 2252 | intel_runtime_pm_put(dev_priv); |
48b956c5 | 2253 | return ret; |
6b95a207 KH |
2254 | } |
2255 | ||
1690e1eb CW |
2256 | void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
2257 | { | |
ebcdd39e MR |
2258 | WARN_ON(!mutex_is_locked(&obj->base.dev->struct_mutex)); |
2259 | ||
1690e1eb | 2260 | i915_gem_object_unpin_fence(obj); |
cc98b413 | 2261 | i915_gem_object_unpin_from_display_plane(obj); |
1690e1eb CW |
2262 | } |
2263 | ||
c2c75131 DV |
2264 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
2265 | * is assumed to be a power-of-two. */ | |
bc752862 CW |
2266 | unsigned long intel_gen4_compute_page_offset(int *x, int *y, |
2267 | unsigned int tiling_mode, | |
2268 | unsigned int cpp, | |
2269 | unsigned int pitch) | |
c2c75131 | 2270 | { |
bc752862 CW |
2271 | if (tiling_mode != I915_TILING_NONE) { |
2272 | unsigned int tile_rows, tiles; | |
c2c75131 | 2273 | |
bc752862 CW |
2274 | tile_rows = *y / 8; |
2275 | *y %= 8; | |
c2c75131 | 2276 | |
bc752862 CW |
2277 | tiles = *x / (512/cpp); |
2278 | *x %= 512/cpp; | |
2279 | ||
2280 | return tile_rows * pitch * 8 + tiles * 4096; | |
2281 | } else { | |
2282 | unsigned int offset; | |
2283 | ||
2284 | offset = *y * pitch + *x * cpp; | |
2285 | *y = 0; | |
2286 | *x = (offset & 4095) / cpp; | |
2287 | return offset & -4096; | |
2288 | } | |
c2c75131 DV |
2289 | } |
2290 | ||
46f297fb JB |
2291 | int intel_format_to_fourcc(int format) |
2292 | { | |
2293 | switch (format) { | |
2294 | case DISPPLANE_8BPP: | |
2295 | return DRM_FORMAT_C8; | |
2296 | case DISPPLANE_BGRX555: | |
2297 | return DRM_FORMAT_XRGB1555; | |
2298 | case DISPPLANE_BGRX565: | |
2299 | return DRM_FORMAT_RGB565; | |
2300 | default: | |
2301 | case DISPPLANE_BGRX888: | |
2302 | return DRM_FORMAT_XRGB8888; | |
2303 | case DISPPLANE_RGBX888: | |
2304 | return DRM_FORMAT_XBGR8888; | |
2305 | case DISPPLANE_BGRX101010: | |
2306 | return DRM_FORMAT_XRGB2101010; | |
2307 | case DISPPLANE_RGBX101010: | |
2308 | return DRM_FORMAT_XBGR2101010; | |
2309 | } | |
2310 | } | |
2311 | ||
484b41dd | 2312 | static bool intel_alloc_plane_obj(struct intel_crtc *crtc, |
46f297fb JB |
2313 | struct intel_plane_config *plane_config) |
2314 | { | |
2315 | struct drm_device *dev = crtc->base.dev; | |
2316 | struct drm_i915_gem_object *obj = NULL; | |
2317 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; | |
2318 | u32 base = plane_config->base; | |
2319 | ||
ff2652ea CW |
2320 | if (plane_config->size == 0) |
2321 | return false; | |
2322 | ||
46f297fb JB |
2323 | obj = i915_gem_object_create_stolen_for_preallocated(dev, base, base, |
2324 | plane_config->size); | |
2325 | if (!obj) | |
484b41dd | 2326 | return false; |
46f297fb JB |
2327 | |
2328 | if (plane_config->tiled) { | |
2329 | obj->tiling_mode = I915_TILING_X; | |
66e514c1 | 2330 | obj->stride = crtc->base.primary->fb->pitches[0]; |
46f297fb JB |
2331 | } |
2332 | ||
66e514c1 DA |
2333 | mode_cmd.pixel_format = crtc->base.primary->fb->pixel_format; |
2334 | mode_cmd.width = crtc->base.primary->fb->width; | |
2335 | mode_cmd.height = crtc->base.primary->fb->height; | |
2336 | mode_cmd.pitches[0] = crtc->base.primary->fb->pitches[0]; | |
46f297fb JB |
2337 | |
2338 | mutex_lock(&dev->struct_mutex); | |
2339 | ||
66e514c1 | 2340 | if (intel_framebuffer_init(dev, to_intel_framebuffer(crtc->base.primary->fb), |
484b41dd | 2341 | &mode_cmd, obj)) { |
46f297fb JB |
2342 | DRM_DEBUG_KMS("intel fb init failed\n"); |
2343 | goto out_unref_obj; | |
2344 | } | |
2345 | ||
a071fa00 | 2346 | obj->frontbuffer_bits = INTEL_FRONTBUFFER_PRIMARY(crtc->pipe); |
46f297fb | 2347 | mutex_unlock(&dev->struct_mutex); |
484b41dd JB |
2348 | |
2349 | DRM_DEBUG_KMS("plane fb obj %p\n", obj); | |
2350 | return true; | |
46f297fb JB |
2351 | |
2352 | out_unref_obj: | |
2353 | drm_gem_object_unreference(&obj->base); | |
2354 | mutex_unlock(&dev->struct_mutex); | |
484b41dd JB |
2355 | return false; |
2356 | } | |
2357 | ||
2358 | static void intel_find_plane_obj(struct intel_crtc *intel_crtc, | |
2359 | struct intel_plane_config *plane_config) | |
2360 | { | |
2361 | struct drm_device *dev = intel_crtc->base.dev; | |
2362 | struct drm_crtc *c; | |
2363 | struct intel_crtc *i; | |
2ff8fde1 | 2364 | struct drm_i915_gem_object *obj; |
484b41dd | 2365 | |
66e514c1 | 2366 | if (!intel_crtc->base.primary->fb) |
484b41dd JB |
2367 | return; |
2368 | ||
2369 | if (intel_alloc_plane_obj(intel_crtc, plane_config)) | |
2370 | return; | |
2371 | ||
66e514c1 DA |
2372 | kfree(intel_crtc->base.primary->fb); |
2373 | intel_crtc->base.primary->fb = NULL; | |
484b41dd JB |
2374 | |
2375 | /* | |
2376 | * Failed to alloc the obj, check to see if we should share | |
2377 | * an fb with another CRTC instead | |
2378 | */ | |
70e1e0ec | 2379 | for_each_crtc(dev, c) { |
484b41dd JB |
2380 | i = to_intel_crtc(c); |
2381 | ||
2382 | if (c == &intel_crtc->base) | |
2383 | continue; | |
2384 | ||
2ff8fde1 MR |
2385 | if (!i->active) |
2386 | continue; | |
2387 | ||
2388 | obj = intel_fb_obj(c->primary->fb); | |
2389 | if (obj == NULL) | |
484b41dd JB |
2390 | continue; |
2391 | ||
2ff8fde1 | 2392 | if (i915_gem_obj_ggtt_offset(obj) == plane_config->base) { |
66e514c1 DA |
2393 | drm_framebuffer_reference(c->primary->fb); |
2394 | intel_crtc->base.primary->fb = c->primary->fb; | |
2ff8fde1 | 2395 | obj->frontbuffer_bits |= INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe); |
484b41dd JB |
2396 | break; |
2397 | } | |
2398 | } | |
46f297fb JB |
2399 | } |
2400 | ||
29b9bde6 DV |
2401 | static void i9xx_update_primary_plane(struct drm_crtc *crtc, |
2402 | struct drm_framebuffer *fb, | |
2403 | int x, int y) | |
81255565 JB |
2404 | { |
2405 | struct drm_device *dev = crtc->dev; | |
2406 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2407 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
c9ba6fad | 2408 | struct drm_i915_gem_object *obj; |
81255565 | 2409 | int plane = intel_crtc->plane; |
e506a0c6 | 2410 | unsigned long linear_offset; |
81255565 | 2411 | u32 dspcntr; |
f45651ba | 2412 | u32 reg = DSPCNTR(plane); |
48404c1e | 2413 | int pixel_size; |
f45651ba | 2414 | |
fdd508a6 VS |
2415 | if (!intel_crtc->primary_enabled) { |
2416 | I915_WRITE(reg, 0); | |
2417 | if (INTEL_INFO(dev)->gen >= 4) | |
2418 | I915_WRITE(DSPSURF(plane), 0); | |
2419 | else | |
2420 | I915_WRITE(DSPADDR(plane), 0); | |
2421 | POSTING_READ(reg); | |
2422 | return; | |
2423 | } | |
2424 | ||
c9ba6fad VS |
2425 | obj = intel_fb_obj(fb); |
2426 | if (WARN_ON(obj == NULL)) | |
2427 | return; | |
2428 | ||
2429 | pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); | |
2430 | ||
f45651ba VS |
2431 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
2432 | ||
fdd508a6 | 2433 | dspcntr |= DISPLAY_PLANE_ENABLE; |
f45651ba VS |
2434 | |
2435 | if (INTEL_INFO(dev)->gen < 4) { | |
2436 | if (intel_crtc->pipe == PIPE_B) | |
2437 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
2438 | ||
2439 | /* pipesrc and dspsize control the size that is scaled from, | |
2440 | * which should always be the user's requested size. | |
2441 | */ | |
2442 | I915_WRITE(DSPSIZE(plane), | |
2443 | ((intel_crtc->config.pipe_src_h - 1) << 16) | | |
2444 | (intel_crtc->config.pipe_src_w - 1)); | |
2445 | I915_WRITE(DSPPOS(plane), 0); | |
2446 | } | |
81255565 | 2447 | |
57779d06 VS |
2448 | switch (fb->pixel_format) { |
2449 | case DRM_FORMAT_C8: | |
81255565 JB |
2450 | dspcntr |= DISPPLANE_8BPP; |
2451 | break; | |
57779d06 VS |
2452 | case DRM_FORMAT_XRGB1555: |
2453 | case DRM_FORMAT_ARGB1555: | |
2454 | dspcntr |= DISPPLANE_BGRX555; | |
81255565 | 2455 | break; |
57779d06 VS |
2456 | case DRM_FORMAT_RGB565: |
2457 | dspcntr |= DISPPLANE_BGRX565; | |
2458 | break; | |
2459 | case DRM_FORMAT_XRGB8888: | |
2460 | case DRM_FORMAT_ARGB8888: | |
2461 | dspcntr |= DISPPLANE_BGRX888; | |
2462 | break; | |
2463 | case DRM_FORMAT_XBGR8888: | |
2464 | case DRM_FORMAT_ABGR8888: | |
2465 | dspcntr |= DISPPLANE_RGBX888; | |
2466 | break; | |
2467 | case DRM_FORMAT_XRGB2101010: | |
2468 | case DRM_FORMAT_ARGB2101010: | |
2469 | dspcntr |= DISPPLANE_BGRX101010; | |
2470 | break; | |
2471 | case DRM_FORMAT_XBGR2101010: | |
2472 | case DRM_FORMAT_ABGR2101010: | |
2473 | dspcntr |= DISPPLANE_RGBX101010; | |
81255565 JB |
2474 | break; |
2475 | default: | |
baba133a | 2476 | BUG(); |
81255565 | 2477 | } |
57779d06 | 2478 | |
f45651ba VS |
2479 | if (INTEL_INFO(dev)->gen >= 4 && |
2480 | obj->tiling_mode != I915_TILING_NONE) | |
2481 | dspcntr |= DISPPLANE_TILED; | |
81255565 | 2482 | |
de1aa629 VS |
2483 | if (IS_G4X(dev)) |
2484 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2485 | ||
b9897127 | 2486 | linear_offset = y * fb->pitches[0] + x * pixel_size; |
81255565 | 2487 | |
c2c75131 DV |
2488 | if (INTEL_INFO(dev)->gen >= 4) { |
2489 | intel_crtc->dspaddr_offset = | |
bc752862 | 2490 | intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode, |
b9897127 | 2491 | pixel_size, |
bc752862 | 2492 | fb->pitches[0]); |
c2c75131 DV |
2493 | linear_offset -= intel_crtc->dspaddr_offset; |
2494 | } else { | |
e506a0c6 | 2495 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 2496 | } |
e506a0c6 | 2497 | |
48404c1e SJ |
2498 | if (to_intel_plane(crtc->primary)->rotation == BIT(DRM_ROTATE_180)) { |
2499 | dspcntr |= DISPPLANE_ROTATE_180; | |
2500 | ||
2501 | x += (intel_crtc->config.pipe_src_w - 1); | |
2502 | y += (intel_crtc->config.pipe_src_h - 1); | |
2503 | ||
2504 | /* Finding the last pixel of the last line of the display | |
2505 | data and adding to linear_offset*/ | |
2506 | linear_offset += | |
2507 | (intel_crtc->config.pipe_src_h - 1) * fb->pitches[0] + | |
2508 | (intel_crtc->config.pipe_src_w - 1) * pixel_size; | |
2509 | } | |
2510 | ||
2511 | I915_WRITE(reg, dspcntr); | |
2512 | ||
f343c5f6 BW |
2513 | DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n", |
2514 | i915_gem_obj_ggtt_offset(obj), linear_offset, x, y, | |
2515 | fb->pitches[0]); | |
01f2c773 | 2516 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 2517 | if (INTEL_INFO(dev)->gen >= 4) { |
85ba7b7d DV |
2518 | I915_WRITE(DSPSURF(plane), |
2519 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset); | |
5eddb70b | 2520 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2521 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 2522 | } else |
f343c5f6 | 2523 | I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset); |
5eddb70b | 2524 | POSTING_READ(reg); |
17638cd6 JB |
2525 | } |
2526 | ||
29b9bde6 DV |
2527 | static void ironlake_update_primary_plane(struct drm_crtc *crtc, |
2528 | struct drm_framebuffer *fb, | |
2529 | int x, int y) | |
17638cd6 JB |
2530 | { |
2531 | struct drm_device *dev = crtc->dev; | |
2532 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2533 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
c9ba6fad | 2534 | struct drm_i915_gem_object *obj; |
17638cd6 | 2535 | int plane = intel_crtc->plane; |
e506a0c6 | 2536 | unsigned long linear_offset; |
17638cd6 | 2537 | u32 dspcntr; |
f45651ba | 2538 | u32 reg = DSPCNTR(plane); |
48404c1e | 2539 | int pixel_size; |
f45651ba | 2540 | |
fdd508a6 VS |
2541 | if (!intel_crtc->primary_enabled) { |
2542 | I915_WRITE(reg, 0); | |
2543 | I915_WRITE(DSPSURF(plane), 0); | |
2544 | POSTING_READ(reg); | |
2545 | return; | |
2546 | } | |
2547 | ||
c9ba6fad VS |
2548 | obj = intel_fb_obj(fb); |
2549 | if (WARN_ON(obj == NULL)) | |
2550 | return; | |
2551 | ||
2552 | pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); | |
2553 | ||
f45651ba VS |
2554 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
2555 | ||
fdd508a6 | 2556 | dspcntr |= DISPLAY_PLANE_ENABLE; |
f45651ba VS |
2557 | |
2558 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) | |
2559 | dspcntr |= DISPPLANE_PIPE_CSC_ENABLE; | |
17638cd6 | 2560 | |
57779d06 VS |
2561 | switch (fb->pixel_format) { |
2562 | case DRM_FORMAT_C8: | |
17638cd6 JB |
2563 | dspcntr |= DISPPLANE_8BPP; |
2564 | break; | |
57779d06 VS |
2565 | case DRM_FORMAT_RGB565: |
2566 | dspcntr |= DISPPLANE_BGRX565; | |
17638cd6 | 2567 | break; |
57779d06 VS |
2568 | case DRM_FORMAT_XRGB8888: |
2569 | case DRM_FORMAT_ARGB8888: | |
2570 | dspcntr |= DISPPLANE_BGRX888; | |
2571 | break; | |
2572 | case DRM_FORMAT_XBGR8888: | |
2573 | case DRM_FORMAT_ABGR8888: | |
2574 | dspcntr |= DISPPLANE_RGBX888; | |
2575 | break; | |
2576 | case DRM_FORMAT_XRGB2101010: | |
2577 | case DRM_FORMAT_ARGB2101010: | |
2578 | dspcntr |= DISPPLANE_BGRX101010; | |
2579 | break; | |
2580 | case DRM_FORMAT_XBGR2101010: | |
2581 | case DRM_FORMAT_ABGR2101010: | |
2582 | dspcntr |= DISPPLANE_RGBX101010; | |
17638cd6 JB |
2583 | break; |
2584 | default: | |
baba133a | 2585 | BUG(); |
17638cd6 JB |
2586 | } |
2587 | ||
2588 | if (obj->tiling_mode != I915_TILING_NONE) | |
2589 | dspcntr |= DISPPLANE_TILED; | |
17638cd6 | 2590 | |
f45651ba | 2591 | if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) |
1f5d76db | 2592 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; |
17638cd6 | 2593 | |
b9897127 | 2594 | linear_offset = y * fb->pitches[0] + x * pixel_size; |
c2c75131 | 2595 | intel_crtc->dspaddr_offset = |
bc752862 | 2596 | intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode, |
b9897127 | 2597 | pixel_size, |
bc752862 | 2598 | fb->pitches[0]); |
c2c75131 | 2599 | linear_offset -= intel_crtc->dspaddr_offset; |
48404c1e SJ |
2600 | if (to_intel_plane(crtc->primary)->rotation == BIT(DRM_ROTATE_180)) { |
2601 | dspcntr |= DISPPLANE_ROTATE_180; | |
2602 | ||
2603 | if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) { | |
2604 | x += (intel_crtc->config.pipe_src_w - 1); | |
2605 | y += (intel_crtc->config.pipe_src_h - 1); | |
2606 | ||
2607 | /* Finding the last pixel of the last line of the display | |
2608 | data and adding to linear_offset*/ | |
2609 | linear_offset += | |
2610 | (intel_crtc->config.pipe_src_h - 1) * fb->pitches[0] + | |
2611 | (intel_crtc->config.pipe_src_w - 1) * pixel_size; | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | I915_WRITE(reg, dspcntr); | |
17638cd6 | 2616 | |
f343c5f6 BW |
2617 | DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n", |
2618 | i915_gem_obj_ggtt_offset(obj), linear_offset, x, y, | |
2619 | fb->pitches[0]); | |
01f2c773 | 2620 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
85ba7b7d DV |
2621 | I915_WRITE(DSPSURF(plane), |
2622 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset); | |
b3dc685e | 2623 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
bc1c91eb DL |
2624 | I915_WRITE(DSPOFFSET(plane), (y << 16) | x); |
2625 | } else { | |
2626 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); | |
2627 | I915_WRITE(DSPLINOFF(plane), linear_offset); | |
2628 | } | |
17638cd6 | 2629 | POSTING_READ(reg); |
17638cd6 JB |
2630 | } |
2631 | ||
70d21f0e DL |
2632 | static void skylake_update_primary_plane(struct drm_crtc *crtc, |
2633 | struct drm_framebuffer *fb, | |
2634 | int x, int y) | |
2635 | { | |
2636 | struct drm_device *dev = crtc->dev; | |
2637 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2638 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2639 | struct intel_framebuffer *intel_fb; | |
2640 | struct drm_i915_gem_object *obj; | |
2641 | int pipe = intel_crtc->pipe; | |
2642 | u32 plane_ctl, stride; | |
2643 | ||
2644 | if (!intel_crtc->primary_enabled) { | |
2645 | I915_WRITE(PLANE_CTL(pipe, 0), 0); | |
2646 | I915_WRITE(PLANE_SURF(pipe, 0), 0); | |
2647 | POSTING_READ(PLANE_CTL(pipe, 0)); | |
2648 | return; | |
2649 | } | |
2650 | ||
2651 | plane_ctl = PLANE_CTL_ENABLE | | |
2652 | PLANE_CTL_PIPE_GAMMA_ENABLE | | |
2653 | PLANE_CTL_PIPE_CSC_ENABLE; | |
2654 | ||
2655 | switch (fb->pixel_format) { | |
2656 | case DRM_FORMAT_RGB565: | |
2657 | plane_ctl |= PLANE_CTL_FORMAT_RGB_565; | |
2658 | break; | |
2659 | case DRM_FORMAT_XRGB8888: | |
2660 | plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888; | |
2661 | break; | |
2662 | case DRM_FORMAT_XBGR8888: | |
2663 | plane_ctl |= PLANE_CTL_ORDER_RGBX; | |
2664 | plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888; | |
2665 | break; | |
2666 | case DRM_FORMAT_XRGB2101010: | |
2667 | plane_ctl |= PLANE_CTL_FORMAT_XRGB_2101010; | |
2668 | break; | |
2669 | case DRM_FORMAT_XBGR2101010: | |
2670 | plane_ctl |= PLANE_CTL_ORDER_RGBX; | |
2671 | plane_ctl |= PLANE_CTL_FORMAT_XRGB_2101010; | |
2672 | break; | |
2673 | default: | |
2674 | BUG(); | |
2675 | } | |
2676 | ||
2677 | intel_fb = to_intel_framebuffer(fb); | |
2678 | obj = intel_fb->obj; | |
2679 | ||
2680 | /* | |
2681 | * The stride is either expressed as a multiple of 64 bytes chunks for | |
2682 | * linear buffers or in number of tiles for tiled buffers. | |
2683 | */ | |
2684 | switch (obj->tiling_mode) { | |
2685 | case I915_TILING_NONE: | |
2686 | stride = fb->pitches[0] >> 6; | |
2687 | break; | |
2688 | case I915_TILING_X: | |
2689 | plane_ctl |= PLANE_CTL_TILED_X; | |
2690 | stride = fb->pitches[0] >> 9; | |
2691 | break; | |
2692 | default: | |
2693 | BUG(); | |
2694 | } | |
2695 | ||
2696 | plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE; | |
1447dde0 SJ |
2697 | if (to_intel_plane(crtc->primary)->rotation == BIT(DRM_ROTATE_180)) |
2698 | plane_ctl |= PLANE_CTL_ROTATE_180; | |
70d21f0e DL |
2699 | |
2700 | I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl); | |
2701 | ||
2702 | DRM_DEBUG_KMS("Writing base %08lX %d,%d,%d,%d pitch=%d\n", | |
2703 | i915_gem_obj_ggtt_offset(obj), | |
2704 | x, y, fb->width, fb->height, | |
2705 | fb->pitches[0]); | |
2706 | ||
2707 | I915_WRITE(PLANE_POS(pipe, 0), 0); | |
2708 | I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x); | |
2709 | I915_WRITE(PLANE_SIZE(pipe, 0), | |
2710 | (intel_crtc->config.pipe_src_h - 1) << 16 | | |
2711 | (intel_crtc->config.pipe_src_w - 1)); | |
2712 | I915_WRITE(PLANE_STRIDE(pipe, 0), stride); | |
2713 | I915_WRITE(PLANE_SURF(pipe, 0), i915_gem_obj_ggtt_offset(obj)); | |
2714 | ||
2715 | POSTING_READ(PLANE_SURF(pipe, 0)); | |
2716 | } | |
2717 | ||
17638cd6 JB |
2718 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ |
2719 | static int | |
2720 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
2721 | int x, int y, enum mode_set_atomic state) | |
2722 | { | |
2723 | struct drm_device *dev = crtc->dev; | |
2724 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 2725 | |
6b8e6ed0 CW |
2726 | if (dev_priv->display.disable_fbc) |
2727 | dev_priv->display.disable_fbc(dev); | |
81255565 | 2728 | |
29b9bde6 DV |
2729 | dev_priv->display.update_primary_plane(crtc, fb, x, y); |
2730 | ||
2731 | return 0; | |
81255565 JB |
2732 | } |
2733 | ||
96a02917 VS |
2734 | void intel_display_handle_reset(struct drm_device *dev) |
2735 | { | |
2736 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2737 | struct drm_crtc *crtc; | |
2738 | ||
2739 | /* | |
2740 | * Flips in the rings have been nuked by the reset, | |
2741 | * so complete all pending flips so that user space | |
2742 | * will get its events and not get stuck. | |
2743 | * | |
2744 | * Also update the base address of all primary | |
2745 | * planes to the the last fb to make sure we're | |
2746 | * showing the correct fb after a reset. | |
2747 | * | |
2748 | * Need to make two loops over the crtcs so that we | |
2749 | * don't try to grab a crtc mutex before the | |
2750 | * pending_flip_queue really got woken up. | |
2751 | */ | |
2752 | ||
70e1e0ec | 2753 | for_each_crtc(dev, crtc) { |
96a02917 VS |
2754 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
2755 | enum plane plane = intel_crtc->plane; | |
2756 | ||
2757 | intel_prepare_page_flip(dev, plane); | |
2758 | intel_finish_page_flip_plane(dev, plane); | |
2759 | } | |
2760 | ||
70e1e0ec | 2761 | for_each_crtc(dev, crtc) { |
96a02917 VS |
2762 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
2763 | ||
51fd371b | 2764 | drm_modeset_lock(&crtc->mutex, NULL); |
947fdaad CW |
2765 | /* |
2766 | * FIXME: Once we have proper support for primary planes (and | |
2767 | * disabling them without disabling the entire crtc) allow again | |
66e514c1 | 2768 | * a NULL crtc->primary->fb. |
947fdaad | 2769 | */ |
f4510a27 | 2770 | if (intel_crtc->active && crtc->primary->fb) |
262ca2b0 | 2771 | dev_priv->display.update_primary_plane(crtc, |
66e514c1 | 2772 | crtc->primary->fb, |
262ca2b0 MR |
2773 | crtc->x, |
2774 | crtc->y); | |
51fd371b | 2775 | drm_modeset_unlock(&crtc->mutex); |
96a02917 VS |
2776 | } |
2777 | } | |
2778 | ||
14667a4b CW |
2779 | static int |
2780 | intel_finish_fb(struct drm_framebuffer *old_fb) | |
2781 | { | |
2ff8fde1 | 2782 | struct drm_i915_gem_object *obj = intel_fb_obj(old_fb); |
14667a4b CW |
2783 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
2784 | bool was_interruptible = dev_priv->mm.interruptible; | |
2785 | int ret; | |
2786 | ||
14667a4b CW |
2787 | /* Big Hammer, we also need to ensure that any pending |
2788 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
2789 | * current scanout is retired before unpinning the old | |
2790 | * framebuffer. | |
2791 | * | |
2792 | * This should only fail upon a hung GPU, in which case we | |
2793 | * can safely continue. | |
2794 | */ | |
2795 | dev_priv->mm.interruptible = false; | |
2796 | ret = i915_gem_object_finish_gpu(obj); | |
2797 | dev_priv->mm.interruptible = was_interruptible; | |
2798 | ||
2799 | return ret; | |
2800 | } | |
2801 | ||
7d5e3799 CW |
2802 | static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc) |
2803 | { | |
2804 | struct drm_device *dev = crtc->dev; | |
2805 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2806 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7d5e3799 CW |
2807 | bool pending; |
2808 | ||
2809 | if (i915_reset_in_progress(&dev_priv->gpu_error) || | |
2810 | intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) | |
2811 | return false; | |
2812 | ||
5e2d7afc | 2813 | spin_lock_irq(&dev->event_lock); |
7d5e3799 | 2814 | pending = to_intel_crtc(crtc)->unpin_work != NULL; |
5e2d7afc | 2815 | spin_unlock_irq(&dev->event_lock); |
7d5e3799 CW |
2816 | |
2817 | return pending; | |
2818 | } | |
2819 | ||
e30e8f75 GP |
2820 | static void intel_update_pipe_size(struct intel_crtc *crtc) |
2821 | { | |
2822 | struct drm_device *dev = crtc->base.dev; | |
2823 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2824 | const struct drm_display_mode *adjusted_mode; | |
2825 | ||
2826 | if (!i915.fastboot) | |
2827 | return; | |
2828 | ||
2829 | /* | |
2830 | * Update pipe size and adjust fitter if needed: the reason for this is | |
2831 | * that in compute_mode_changes we check the native mode (not the pfit | |
2832 | * mode) to see if we can flip rather than do a full mode set. In the | |
2833 | * fastboot case, we'll flip, but if we don't update the pipesrc and | |
2834 | * pfit state, we'll end up with a big fb scanned out into the wrong | |
2835 | * sized surface. | |
2836 | * | |
2837 | * To fix this properly, we need to hoist the checks up into | |
2838 | * compute_mode_changes (or above), check the actual pfit state and | |
2839 | * whether the platform allows pfit disable with pipe active, and only | |
2840 | * then update the pipesrc and pfit state, even on the flip path. | |
2841 | */ | |
2842 | ||
2843 | adjusted_mode = &crtc->config.adjusted_mode; | |
2844 | ||
2845 | I915_WRITE(PIPESRC(crtc->pipe), | |
2846 | ((adjusted_mode->crtc_hdisplay - 1) << 16) | | |
2847 | (adjusted_mode->crtc_vdisplay - 1)); | |
2848 | if (!crtc->config.pch_pfit.enabled && | |
2849 | (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) || | |
2850 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP))) { | |
2851 | I915_WRITE(PF_CTL(crtc->pipe), 0); | |
2852 | I915_WRITE(PF_WIN_POS(crtc->pipe), 0); | |
2853 | I915_WRITE(PF_WIN_SZ(crtc->pipe), 0); | |
2854 | } | |
2855 | crtc->config.pipe_src_w = adjusted_mode->crtc_hdisplay; | |
2856 | crtc->config.pipe_src_h = adjusted_mode->crtc_vdisplay; | |
2857 | } | |
2858 | ||
5c3b82e2 | 2859 | static int |
3c4fdcfb | 2860 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
94352cf9 | 2861 | struct drm_framebuffer *fb) |
79e53945 JB |
2862 | { |
2863 | struct drm_device *dev = crtc->dev; | |
6b8e6ed0 | 2864 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 2865 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
a071fa00 | 2866 | enum pipe pipe = intel_crtc->pipe; |
2ff8fde1 MR |
2867 | struct drm_framebuffer *old_fb = crtc->primary->fb; |
2868 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
2869 | struct drm_i915_gem_object *old_obj = intel_fb_obj(old_fb); | |
5c3b82e2 | 2870 | int ret; |
79e53945 | 2871 | |
7d5e3799 CW |
2872 | if (intel_crtc_has_pending_flip(crtc)) { |
2873 | DRM_ERROR("pipe is still busy with an old pageflip\n"); | |
2874 | return -EBUSY; | |
2875 | } | |
2876 | ||
79e53945 | 2877 | /* no fb bound */ |
94352cf9 | 2878 | if (!fb) { |
a5071c2f | 2879 | DRM_ERROR("No FB bound\n"); |
5c3b82e2 CW |
2880 | return 0; |
2881 | } | |
2882 | ||
7eb552ae | 2883 | if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) { |
84f44ce7 VS |
2884 | DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n", |
2885 | plane_name(intel_crtc->plane), | |
2886 | INTEL_INFO(dev)->num_pipes); | |
5c3b82e2 | 2887 | return -EINVAL; |
79e53945 JB |
2888 | } |
2889 | ||
5c3b82e2 | 2890 | mutex_lock(&dev->struct_mutex); |
a071fa00 DV |
2891 | ret = intel_pin_and_fence_fb_obj(dev, obj, NULL); |
2892 | if (ret == 0) | |
91565c85 | 2893 | i915_gem_track_fb(old_obj, obj, |
a071fa00 | 2894 | INTEL_FRONTBUFFER_PRIMARY(pipe)); |
8ac36ec1 | 2895 | mutex_unlock(&dev->struct_mutex); |
5c3b82e2 | 2896 | if (ret != 0) { |
a5071c2f | 2897 | DRM_ERROR("pin & fence failed\n"); |
5c3b82e2 CW |
2898 | return ret; |
2899 | } | |
79e53945 | 2900 | |
e30e8f75 | 2901 | intel_update_pipe_size(intel_crtc); |
4d6a3e63 | 2902 | |
29b9bde6 | 2903 | dev_priv->display.update_primary_plane(crtc, fb, x, y); |
3c4fdcfb | 2904 | |
f99d7069 DV |
2905 | if (intel_crtc->active) |
2906 | intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_PRIMARY(pipe)); | |
2907 | ||
f4510a27 | 2908 | crtc->primary->fb = fb; |
6c4c86f5 DV |
2909 | crtc->x = x; |
2910 | crtc->y = y; | |
94352cf9 | 2911 | |
b7f1de28 | 2912 | if (old_fb) { |
d7697eea DV |
2913 | if (intel_crtc->active && old_fb != fb) |
2914 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
8ac36ec1 | 2915 | mutex_lock(&dev->struct_mutex); |
2ff8fde1 | 2916 | intel_unpin_fb_obj(old_obj); |
8ac36ec1 | 2917 | mutex_unlock(&dev->struct_mutex); |
b7f1de28 | 2918 | } |
652c393a | 2919 | |
8ac36ec1 | 2920 | mutex_lock(&dev->struct_mutex); |
6b8e6ed0 | 2921 | intel_update_fbc(dev); |
5c3b82e2 | 2922 | mutex_unlock(&dev->struct_mutex); |
79e53945 | 2923 | |
5c3b82e2 | 2924 | return 0; |
79e53945 JB |
2925 | } |
2926 | ||
5e84e1a4 ZW |
2927 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
2928 | { | |
2929 | struct drm_device *dev = crtc->dev; | |
2930 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2931 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2932 | int pipe = intel_crtc->pipe; | |
2933 | u32 reg, temp; | |
2934 | ||
2935 | /* enable normal train */ | |
2936 | reg = FDI_TX_CTL(pipe); | |
2937 | temp = I915_READ(reg); | |
61e499bf | 2938 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
2939 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
2940 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
2941 | } else { |
2942 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2943 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 2944 | } |
5e84e1a4 ZW |
2945 | I915_WRITE(reg, temp); |
2946 | ||
2947 | reg = FDI_RX_CTL(pipe); | |
2948 | temp = I915_READ(reg); | |
2949 | if (HAS_PCH_CPT(dev)) { | |
2950 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2951 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2952 | } else { | |
2953 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2954 | temp |= FDI_LINK_TRAIN_NONE; | |
2955 | } | |
2956 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2957 | ||
2958 | /* wait one idle pattern time */ | |
2959 | POSTING_READ(reg); | |
2960 | udelay(1000); | |
357555c0 JB |
2961 | |
2962 | /* IVB wants error correction enabled */ | |
2963 | if (IS_IVYBRIDGE(dev)) | |
2964 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
2965 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
2966 | } |
2967 | ||
1fbc0d78 | 2968 | static bool pipe_has_enabled_pch(struct intel_crtc *crtc) |
1e833f40 | 2969 | { |
1fbc0d78 DV |
2970 | return crtc->base.enabled && crtc->active && |
2971 | crtc->config.has_pch_encoder; | |
1e833f40 DV |
2972 | } |
2973 | ||
01a415fd DV |
2974 | static void ivb_modeset_global_resources(struct drm_device *dev) |
2975 | { | |
2976 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2977 | struct intel_crtc *pipe_B_crtc = | |
2978 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]); | |
2979 | struct intel_crtc *pipe_C_crtc = | |
2980 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]); | |
2981 | uint32_t temp; | |
2982 | ||
1e833f40 DV |
2983 | /* |
2984 | * When everything is off disable fdi C so that we could enable fdi B | |
2985 | * with all lanes. Note that we don't care about enabled pipes without | |
2986 | * an enabled pch encoder. | |
2987 | */ | |
2988 | if (!pipe_has_enabled_pch(pipe_B_crtc) && | |
2989 | !pipe_has_enabled_pch(pipe_C_crtc)) { | |
01a415fd DV |
2990 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); |
2991 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
2992 | ||
2993 | temp = I915_READ(SOUTH_CHICKEN1); | |
2994 | temp &= ~FDI_BC_BIFURCATION_SELECT; | |
2995 | DRM_DEBUG_KMS("disabling fdi C rx\n"); | |
2996 | I915_WRITE(SOUTH_CHICKEN1, temp); | |
2997 | } | |
2998 | } | |
2999 | ||
8db9d77b ZW |
3000 | /* The FDI link training functions for ILK/Ibexpeak. */ |
3001 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
3002 | { | |
3003 | struct drm_device *dev = crtc->dev; | |
3004 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3005 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3006 | int pipe = intel_crtc->pipe; | |
5eddb70b | 3007 | u32 reg, temp, tries; |
8db9d77b | 3008 | |
1c8562f6 | 3009 | /* FDI needs bits from pipe first */ |
0fc932b8 | 3010 | assert_pipe_enabled(dev_priv, pipe); |
0fc932b8 | 3011 | |
e1a44743 AJ |
3012 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
3013 | for train result */ | |
5eddb70b CW |
3014 | reg = FDI_RX_IMR(pipe); |
3015 | temp = I915_READ(reg); | |
e1a44743 AJ |
3016 | temp &= ~FDI_RX_SYMBOL_LOCK; |
3017 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
3018 | I915_WRITE(reg, temp); |
3019 | I915_READ(reg); | |
e1a44743 AJ |
3020 | udelay(150); |
3021 | ||
8db9d77b | 3022 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
3023 | reg = FDI_TX_CTL(pipe); |
3024 | temp = I915_READ(reg); | |
627eb5a3 DV |
3025 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
3026 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
8db9d77b ZW |
3027 | temp &= ~FDI_LINK_TRAIN_NONE; |
3028 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 3029 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 3030 | |
5eddb70b CW |
3031 | reg = FDI_RX_CTL(pipe); |
3032 | temp = I915_READ(reg); | |
8db9d77b ZW |
3033 | temp &= ~FDI_LINK_TRAIN_NONE; |
3034 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
3035 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
3036 | ||
3037 | POSTING_READ(reg); | |
8db9d77b ZW |
3038 | udelay(150); |
3039 | ||
5b2adf89 | 3040 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
8f5718a6 DV |
3041 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
3042 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
3043 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
5b2adf89 | 3044 | |
5eddb70b | 3045 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 3046 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 3047 | temp = I915_READ(reg); |
8db9d77b ZW |
3048 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
3049 | ||
3050 | if ((temp & FDI_RX_BIT_LOCK)) { | |
3051 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 3052 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
3053 | break; |
3054 | } | |
8db9d77b | 3055 | } |
e1a44743 | 3056 | if (tries == 5) |
5eddb70b | 3057 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
3058 | |
3059 | /* Train 2 */ | |
5eddb70b CW |
3060 | reg = FDI_TX_CTL(pipe); |
3061 | temp = I915_READ(reg); | |
8db9d77b ZW |
3062 | temp &= ~FDI_LINK_TRAIN_NONE; |
3063 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 3064 | I915_WRITE(reg, temp); |
8db9d77b | 3065 | |
5eddb70b CW |
3066 | reg = FDI_RX_CTL(pipe); |
3067 | temp = I915_READ(reg); | |
8db9d77b ZW |
3068 | temp &= ~FDI_LINK_TRAIN_NONE; |
3069 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 3070 | I915_WRITE(reg, temp); |
8db9d77b | 3071 | |
5eddb70b CW |
3072 | POSTING_READ(reg); |
3073 | udelay(150); | |
8db9d77b | 3074 | |
5eddb70b | 3075 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 3076 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 3077 | temp = I915_READ(reg); |
8db9d77b ZW |
3078 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
3079 | ||
3080 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 3081 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
3082 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
3083 | break; | |
3084 | } | |
8db9d77b | 3085 | } |
e1a44743 | 3086 | if (tries == 5) |
5eddb70b | 3087 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
3088 | |
3089 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 3090 | |
8db9d77b ZW |
3091 | } |
3092 | ||
0206e353 | 3093 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
3094 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
3095 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
3096 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
3097 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
3098 | }; | |
3099 | ||
3100 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
3101 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
3102 | { | |
3103 | struct drm_device *dev = crtc->dev; | |
3104 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3105 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3106 | int pipe = intel_crtc->pipe; | |
fa37d39e | 3107 | u32 reg, temp, i, retry; |
8db9d77b | 3108 | |
e1a44743 AJ |
3109 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
3110 | for train result */ | |
5eddb70b CW |
3111 | reg = FDI_RX_IMR(pipe); |
3112 | temp = I915_READ(reg); | |
e1a44743 AJ |
3113 | temp &= ~FDI_RX_SYMBOL_LOCK; |
3114 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
3115 | I915_WRITE(reg, temp); |
3116 | ||
3117 | POSTING_READ(reg); | |
e1a44743 AJ |
3118 | udelay(150); |
3119 | ||
8db9d77b | 3120 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
3121 | reg = FDI_TX_CTL(pipe); |
3122 | temp = I915_READ(reg); | |
627eb5a3 DV |
3123 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
3124 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
8db9d77b ZW |
3125 | temp &= ~FDI_LINK_TRAIN_NONE; |
3126 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3127 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
3128 | /* SNB-B */ | |
3129 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 3130 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 3131 | |
d74cf324 DV |
3132 | I915_WRITE(FDI_RX_MISC(pipe), |
3133 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
3134 | ||
5eddb70b CW |
3135 | reg = FDI_RX_CTL(pipe); |
3136 | temp = I915_READ(reg); | |
8db9d77b ZW |
3137 | if (HAS_PCH_CPT(dev)) { |
3138 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3139 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
3140 | } else { | |
3141 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3142 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3143 | } | |
5eddb70b CW |
3144 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
3145 | ||
3146 | POSTING_READ(reg); | |
8db9d77b ZW |
3147 | udelay(150); |
3148 | ||
0206e353 | 3149 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
3150 | reg = FDI_TX_CTL(pipe); |
3151 | temp = I915_READ(reg); | |
8db9d77b ZW |
3152 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
3153 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
3154 | I915_WRITE(reg, temp); |
3155 | ||
3156 | POSTING_READ(reg); | |
8db9d77b ZW |
3157 | udelay(500); |
3158 | ||
fa37d39e SP |
3159 | for (retry = 0; retry < 5; retry++) { |
3160 | reg = FDI_RX_IIR(pipe); | |
3161 | temp = I915_READ(reg); | |
3162 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
3163 | if (temp & FDI_RX_BIT_LOCK) { | |
3164 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
3165 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
3166 | break; | |
3167 | } | |
3168 | udelay(50); | |
8db9d77b | 3169 | } |
fa37d39e SP |
3170 | if (retry < 5) |
3171 | break; | |
8db9d77b ZW |
3172 | } |
3173 | if (i == 4) | |
5eddb70b | 3174 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
3175 | |
3176 | /* Train 2 */ | |
5eddb70b CW |
3177 | reg = FDI_TX_CTL(pipe); |
3178 | temp = I915_READ(reg); | |
8db9d77b ZW |
3179 | temp &= ~FDI_LINK_TRAIN_NONE; |
3180 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
3181 | if (IS_GEN6(dev)) { | |
3182 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
3183 | /* SNB-B */ | |
3184 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
3185 | } | |
5eddb70b | 3186 | I915_WRITE(reg, temp); |
8db9d77b | 3187 | |
5eddb70b CW |
3188 | reg = FDI_RX_CTL(pipe); |
3189 | temp = I915_READ(reg); | |
8db9d77b ZW |
3190 | if (HAS_PCH_CPT(dev)) { |
3191 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3192 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
3193 | } else { | |
3194 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3195 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
3196 | } | |
5eddb70b CW |
3197 | I915_WRITE(reg, temp); |
3198 | ||
3199 | POSTING_READ(reg); | |
8db9d77b ZW |
3200 | udelay(150); |
3201 | ||
0206e353 | 3202 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
3203 | reg = FDI_TX_CTL(pipe); |
3204 | temp = I915_READ(reg); | |
8db9d77b ZW |
3205 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
3206 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
3207 | I915_WRITE(reg, temp); |
3208 | ||
3209 | POSTING_READ(reg); | |
8db9d77b ZW |
3210 | udelay(500); |
3211 | ||
fa37d39e SP |
3212 | for (retry = 0; retry < 5; retry++) { |
3213 | reg = FDI_RX_IIR(pipe); | |
3214 | temp = I915_READ(reg); | |
3215 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
3216 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
3217 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
3218 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
3219 | break; | |
3220 | } | |
3221 | udelay(50); | |
8db9d77b | 3222 | } |
fa37d39e SP |
3223 | if (retry < 5) |
3224 | break; | |
8db9d77b ZW |
3225 | } |
3226 | if (i == 4) | |
5eddb70b | 3227 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
3228 | |
3229 | DRM_DEBUG_KMS("FDI train done.\n"); | |
3230 | } | |
3231 | ||
357555c0 JB |
3232 | /* Manual link training for Ivy Bridge A0 parts */ |
3233 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
3234 | { | |
3235 | struct drm_device *dev = crtc->dev; | |
3236 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3237 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3238 | int pipe = intel_crtc->pipe; | |
139ccd3f | 3239 | u32 reg, temp, i, j; |
357555c0 JB |
3240 | |
3241 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
3242 | for train result */ | |
3243 | reg = FDI_RX_IMR(pipe); | |
3244 | temp = I915_READ(reg); | |
3245 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
3246 | temp &= ~FDI_RX_BIT_LOCK; | |
3247 | I915_WRITE(reg, temp); | |
3248 | ||
3249 | POSTING_READ(reg); | |
3250 | udelay(150); | |
3251 | ||
01a415fd DV |
3252 | DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n", |
3253 | I915_READ(FDI_RX_IIR(pipe))); | |
3254 | ||
139ccd3f JB |
3255 | /* Try each vswing and preemphasis setting twice before moving on */ |
3256 | for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) { | |
3257 | /* disable first in case we need to retry */ | |
3258 | reg = FDI_TX_CTL(pipe); | |
3259 | temp = I915_READ(reg); | |
3260 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
3261 | temp &= ~FDI_TX_ENABLE; | |
3262 | I915_WRITE(reg, temp); | |
357555c0 | 3263 | |
139ccd3f JB |
3264 | reg = FDI_RX_CTL(pipe); |
3265 | temp = I915_READ(reg); | |
3266 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
3267 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3268 | temp &= ~FDI_RX_ENABLE; | |
3269 | I915_WRITE(reg, temp); | |
357555c0 | 3270 | |
139ccd3f | 3271 | /* enable CPU FDI TX and PCH FDI RX */ |
357555c0 JB |
3272 | reg = FDI_TX_CTL(pipe); |
3273 | temp = I915_READ(reg); | |
139ccd3f JB |
3274 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
3275 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
3276 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; | |
357555c0 | 3277 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
139ccd3f JB |
3278 | temp |= snb_b_fdi_train_param[j/2]; |
3279 | temp |= FDI_COMPOSITE_SYNC; | |
3280 | I915_WRITE(reg, temp | FDI_TX_ENABLE); | |
357555c0 | 3281 | |
139ccd3f JB |
3282 | I915_WRITE(FDI_RX_MISC(pipe), |
3283 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
357555c0 | 3284 | |
139ccd3f | 3285 | reg = FDI_RX_CTL(pipe); |
357555c0 | 3286 | temp = I915_READ(reg); |
139ccd3f JB |
3287 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
3288 | temp |= FDI_COMPOSITE_SYNC; | |
3289 | I915_WRITE(reg, temp | FDI_RX_ENABLE); | |
357555c0 | 3290 | |
139ccd3f JB |
3291 | POSTING_READ(reg); |
3292 | udelay(1); /* should be 0.5us */ | |
357555c0 | 3293 | |
139ccd3f JB |
3294 | for (i = 0; i < 4; i++) { |
3295 | reg = FDI_RX_IIR(pipe); | |
3296 | temp = I915_READ(reg); | |
3297 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
357555c0 | 3298 | |
139ccd3f JB |
3299 | if (temp & FDI_RX_BIT_LOCK || |
3300 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
3301 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
3302 | DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", | |
3303 | i); | |
3304 | break; | |
3305 | } | |
3306 | udelay(1); /* should be 0.5us */ | |
3307 | } | |
3308 | if (i == 4) { | |
3309 | DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2); | |
3310 | continue; | |
3311 | } | |
357555c0 | 3312 | |
139ccd3f | 3313 | /* Train 2 */ |
357555c0 JB |
3314 | reg = FDI_TX_CTL(pipe); |
3315 | temp = I915_READ(reg); | |
139ccd3f JB |
3316 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
3317 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
3318 | I915_WRITE(reg, temp); | |
3319 | ||
3320 | reg = FDI_RX_CTL(pipe); | |
3321 | temp = I915_READ(reg); | |
3322 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3323 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
357555c0 JB |
3324 | I915_WRITE(reg, temp); |
3325 | ||
3326 | POSTING_READ(reg); | |
139ccd3f | 3327 | udelay(2); /* should be 1.5us */ |
357555c0 | 3328 | |
139ccd3f JB |
3329 | for (i = 0; i < 4; i++) { |
3330 | reg = FDI_RX_IIR(pipe); | |
3331 | temp = I915_READ(reg); | |
3332 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
357555c0 | 3333 | |
139ccd3f JB |
3334 | if (temp & FDI_RX_SYMBOL_LOCK || |
3335 | (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) { | |
3336 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
3337 | DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", | |
3338 | i); | |
3339 | goto train_done; | |
3340 | } | |
3341 | udelay(2); /* should be 1.5us */ | |
357555c0 | 3342 | } |
139ccd3f JB |
3343 | if (i == 4) |
3344 | DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2); | |
357555c0 | 3345 | } |
357555c0 | 3346 | |
139ccd3f | 3347 | train_done: |
357555c0 JB |
3348 | DRM_DEBUG_KMS("FDI train done.\n"); |
3349 | } | |
3350 | ||
88cefb6c | 3351 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 3352 | { |
88cefb6c | 3353 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 3354 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 3355 | int pipe = intel_crtc->pipe; |
5eddb70b | 3356 | u32 reg, temp; |
79e53945 | 3357 | |
c64e311e | 3358 | |
c98e9dcf | 3359 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
3360 | reg = FDI_RX_CTL(pipe); |
3361 | temp = I915_READ(reg); | |
627eb5a3 DV |
3362 | temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16)); |
3363 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
dfd07d72 | 3364 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
5eddb70b CW |
3365 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); |
3366 | ||
3367 | POSTING_READ(reg); | |
c98e9dcf JB |
3368 | udelay(200); |
3369 | ||
3370 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
3371 | temp = I915_READ(reg); |
3372 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
3373 | ||
3374 | POSTING_READ(reg); | |
c98e9dcf JB |
3375 | udelay(200); |
3376 | ||
20749730 PZ |
3377 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
3378 | reg = FDI_TX_CTL(pipe); | |
3379 | temp = I915_READ(reg); | |
3380 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
3381 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 3382 | |
20749730 PZ |
3383 | POSTING_READ(reg); |
3384 | udelay(100); | |
6be4a607 | 3385 | } |
0e23b99d JB |
3386 | } |
3387 | ||
88cefb6c DV |
3388 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
3389 | { | |
3390 | struct drm_device *dev = intel_crtc->base.dev; | |
3391 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3392 | int pipe = intel_crtc->pipe; | |
3393 | u32 reg, temp; | |
3394 | ||
3395 | /* Switch from PCDclk to Rawclk */ | |
3396 | reg = FDI_RX_CTL(pipe); | |
3397 | temp = I915_READ(reg); | |
3398 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
3399 | ||
3400 | /* Disable CPU FDI TX PLL */ | |
3401 | reg = FDI_TX_CTL(pipe); | |
3402 | temp = I915_READ(reg); | |
3403 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
3404 | ||
3405 | POSTING_READ(reg); | |
3406 | udelay(100); | |
3407 | ||
3408 | reg = FDI_RX_CTL(pipe); | |
3409 | temp = I915_READ(reg); | |
3410 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
3411 | ||
3412 | /* Wait for the clocks to turn off. */ | |
3413 | POSTING_READ(reg); | |
3414 | udelay(100); | |
3415 | } | |
3416 | ||
0fc932b8 JB |
3417 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
3418 | { | |
3419 | struct drm_device *dev = crtc->dev; | |
3420 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3421 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3422 | int pipe = intel_crtc->pipe; | |
3423 | u32 reg, temp; | |
3424 | ||
3425 | /* disable CPU FDI tx and PCH FDI rx */ | |
3426 | reg = FDI_TX_CTL(pipe); | |
3427 | temp = I915_READ(reg); | |
3428 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
3429 | POSTING_READ(reg); | |
3430 | ||
3431 | reg = FDI_RX_CTL(pipe); | |
3432 | temp = I915_READ(reg); | |
3433 | temp &= ~(0x7 << 16); | |
dfd07d72 | 3434 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
3435 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); |
3436 | ||
3437 | POSTING_READ(reg); | |
3438 | udelay(100); | |
3439 | ||
3440 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
eba905b2 | 3441 | if (HAS_PCH_IBX(dev)) |
6f06ce18 | 3442 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
0fc932b8 JB |
3443 | |
3444 | /* still set train pattern 1 */ | |
3445 | reg = FDI_TX_CTL(pipe); | |
3446 | temp = I915_READ(reg); | |
3447 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3448 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3449 | I915_WRITE(reg, temp); | |
3450 | ||
3451 | reg = FDI_RX_CTL(pipe); | |
3452 | temp = I915_READ(reg); | |
3453 | if (HAS_PCH_CPT(dev)) { | |
3454 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3455 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
3456 | } else { | |
3457 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3458 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3459 | } | |
3460 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
3461 | temp &= ~(0x07 << 16); | |
dfd07d72 | 3462 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
3463 | I915_WRITE(reg, temp); |
3464 | ||
3465 | POSTING_READ(reg); | |
3466 | udelay(100); | |
3467 | } | |
3468 | ||
5dce5b93 CW |
3469 | bool intel_has_pending_fb_unpin(struct drm_device *dev) |
3470 | { | |
3471 | struct intel_crtc *crtc; | |
3472 | ||
3473 | /* Note that we don't need to be called with mode_config.lock here | |
3474 | * as our list of CRTC objects is static for the lifetime of the | |
3475 | * device and so cannot disappear as we iterate. Similarly, we can | |
3476 | * happily treat the predicates as racy, atomic checks as userspace | |
3477 | * cannot claim and pin a new fb without at least acquring the | |
3478 | * struct_mutex and so serialising with us. | |
3479 | */ | |
d3fcc808 | 3480 | for_each_intel_crtc(dev, crtc) { |
5dce5b93 CW |
3481 | if (atomic_read(&crtc->unpin_work_count) == 0) |
3482 | continue; | |
3483 | ||
3484 | if (crtc->unpin_work) | |
3485 | intel_wait_for_vblank(dev, crtc->pipe); | |
3486 | ||
3487 | return true; | |
3488 | } | |
3489 | ||
3490 | return false; | |
3491 | } | |
3492 | ||
d6bbafa1 CW |
3493 | static void page_flip_completed(struct intel_crtc *intel_crtc) |
3494 | { | |
3495 | struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev); | |
3496 | struct intel_unpin_work *work = intel_crtc->unpin_work; | |
3497 | ||
3498 | /* ensure that the unpin work is consistent wrt ->pending. */ | |
3499 | smp_rmb(); | |
3500 | intel_crtc->unpin_work = NULL; | |
3501 | ||
3502 | if (work->event) | |
3503 | drm_send_vblank_event(intel_crtc->base.dev, | |
3504 | intel_crtc->pipe, | |
3505 | work->event); | |
3506 | ||
3507 | drm_crtc_vblank_put(&intel_crtc->base); | |
3508 | ||
3509 | wake_up_all(&dev_priv->pending_flip_queue); | |
3510 | queue_work(dev_priv->wq, &work->work); | |
3511 | ||
3512 | trace_i915_flip_complete(intel_crtc->plane, | |
3513 | work->pending_flip_obj); | |
3514 | } | |
3515 | ||
46a55d30 | 3516 | void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
e6c3a2a6 | 3517 | { |
0f91128d | 3518 | struct drm_device *dev = crtc->dev; |
5bb61643 | 3519 | struct drm_i915_private *dev_priv = dev->dev_private; |
e6c3a2a6 | 3520 | |
2c10d571 | 3521 | WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue)); |
9c787942 CW |
3522 | if (WARN_ON(wait_event_timeout(dev_priv->pending_flip_queue, |
3523 | !intel_crtc_has_pending_flip(crtc), | |
3524 | 60*HZ) == 0)) { | |
3525 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2c10d571 | 3526 | |
5e2d7afc | 3527 | spin_lock_irq(&dev->event_lock); |
9c787942 CW |
3528 | if (intel_crtc->unpin_work) { |
3529 | WARN_ONCE(1, "Removing stuck page flip\n"); | |
3530 | page_flip_completed(intel_crtc); | |
3531 | } | |
5e2d7afc | 3532 | spin_unlock_irq(&dev->event_lock); |
9c787942 | 3533 | } |
5bb61643 | 3534 | |
975d568a CW |
3535 | if (crtc->primary->fb) { |
3536 | mutex_lock(&dev->struct_mutex); | |
3537 | intel_finish_fb(crtc->primary->fb); | |
3538 | mutex_unlock(&dev->struct_mutex); | |
3539 | } | |
e6c3a2a6 CW |
3540 | } |
3541 | ||
e615efe4 ED |
3542 | /* Program iCLKIP clock to the desired frequency */ |
3543 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
3544 | { | |
3545 | struct drm_device *dev = crtc->dev; | |
3546 | struct drm_i915_private *dev_priv = dev->dev_private; | |
241bfc38 | 3547 | int clock = to_intel_crtc(crtc)->config.adjusted_mode.crtc_clock; |
e615efe4 ED |
3548 | u32 divsel, phaseinc, auxdiv, phasedir = 0; |
3549 | u32 temp; | |
3550 | ||
09153000 DV |
3551 | mutex_lock(&dev_priv->dpio_lock); |
3552 | ||
e615efe4 ED |
3553 | /* It is necessary to ungate the pixclk gate prior to programming |
3554 | * the divisors, and gate it back when it is done. | |
3555 | */ | |
3556 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
3557 | ||
3558 | /* Disable SSCCTL */ | |
3559 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
988d6ee8 PZ |
3560 | intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) | |
3561 | SBI_SSCCTL_DISABLE, | |
3562 | SBI_ICLK); | |
e615efe4 ED |
3563 | |
3564 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
12d7ceed | 3565 | if (clock == 20000) { |
e615efe4 ED |
3566 | auxdiv = 1; |
3567 | divsel = 0x41; | |
3568 | phaseinc = 0x20; | |
3569 | } else { | |
3570 | /* The iCLK virtual clock root frequency is in MHz, | |
241bfc38 DL |
3571 | * but the adjusted_mode->crtc_clock in in KHz. To get the |
3572 | * divisors, it is necessary to divide one by another, so we | |
e615efe4 ED |
3573 | * convert the virtual clock precision to KHz here for higher |
3574 | * precision. | |
3575 | */ | |
3576 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
3577 | u32 iclk_pi_range = 64; | |
3578 | u32 desired_divisor, msb_divisor_value, pi_value; | |
3579 | ||
12d7ceed | 3580 | desired_divisor = (iclk_virtual_root_freq / clock); |
e615efe4 ED |
3581 | msb_divisor_value = desired_divisor / iclk_pi_range; |
3582 | pi_value = desired_divisor % iclk_pi_range; | |
3583 | ||
3584 | auxdiv = 0; | |
3585 | divsel = msb_divisor_value - 2; | |
3586 | phaseinc = pi_value; | |
3587 | } | |
3588 | ||
3589 | /* This should not happen with any sane values */ | |
3590 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
3591 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
3592 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
3593 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
3594 | ||
3595 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
12d7ceed | 3596 | clock, |
e615efe4 ED |
3597 | auxdiv, |
3598 | divsel, | |
3599 | phasedir, | |
3600 | phaseinc); | |
3601 | ||
3602 | /* Program SSCDIVINTPHASE6 */ | |
988d6ee8 | 3603 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK); |
e615efe4 ED |
3604 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; |
3605 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
3606 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
3607 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
3608 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
3609 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
988d6ee8 | 3610 | intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK); |
e615efe4 ED |
3611 | |
3612 | /* Program SSCAUXDIV */ | |
988d6ee8 | 3613 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK); |
e615efe4 ED |
3614 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); |
3615 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
988d6ee8 | 3616 | intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK); |
e615efe4 ED |
3617 | |
3618 | /* Enable modulator and associated divider */ | |
988d6ee8 | 3619 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK); |
e615efe4 | 3620 | temp &= ~SBI_SSCCTL_DISABLE; |
988d6ee8 | 3621 | intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK); |
e615efe4 ED |
3622 | |
3623 | /* Wait for initialization time */ | |
3624 | udelay(24); | |
3625 | ||
3626 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
09153000 DV |
3627 | |
3628 | mutex_unlock(&dev_priv->dpio_lock); | |
e615efe4 ED |
3629 | } |
3630 | ||
275f01b2 DV |
3631 | static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc, |
3632 | enum pipe pch_transcoder) | |
3633 | { | |
3634 | struct drm_device *dev = crtc->base.dev; | |
3635 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3636 | enum transcoder cpu_transcoder = crtc->config.cpu_transcoder; | |
3637 | ||
3638 | I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder), | |
3639 | I915_READ(HTOTAL(cpu_transcoder))); | |
3640 | I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder), | |
3641 | I915_READ(HBLANK(cpu_transcoder))); | |
3642 | I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder), | |
3643 | I915_READ(HSYNC(cpu_transcoder))); | |
3644 | ||
3645 | I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder), | |
3646 | I915_READ(VTOTAL(cpu_transcoder))); | |
3647 | I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder), | |
3648 | I915_READ(VBLANK(cpu_transcoder))); | |
3649 | I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder), | |
3650 | I915_READ(VSYNC(cpu_transcoder))); | |
3651 | I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder), | |
3652 | I915_READ(VSYNCSHIFT(cpu_transcoder))); | |
3653 | } | |
3654 | ||
1fbc0d78 DV |
3655 | static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev) |
3656 | { | |
3657 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3658 | uint32_t temp; | |
3659 | ||
3660 | temp = I915_READ(SOUTH_CHICKEN1); | |
3661 | if (temp & FDI_BC_BIFURCATION_SELECT) | |
3662 | return; | |
3663 | ||
3664 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); | |
3665 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
3666 | ||
3667 | temp |= FDI_BC_BIFURCATION_SELECT; | |
3668 | DRM_DEBUG_KMS("enabling fdi C rx\n"); | |
3669 | I915_WRITE(SOUTH_CHICKEN1, temp); | |
3670 | POSTING_READ(SOUTH_CHICKEN1); | |
3671 | } | |
3672 | ||
3673 | static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc) | |
3674 | { | |
3675 | struct drm_device *dev = intel_crtc->base.dev; | |
3676 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3677 | ||
3678 | switch (intel_crtc->pipe) { | |
3679 | case PIPE_A: | |
3680 | break; | |
3681 | case PIPE_B: | |
3682 | if (intel_crtc->config.fdi_lanes > 2) | |
3683 | WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT); | |
3684 | else | |
3685 | cpt_enable_fdi_bc_bifurcation(dev); | |
3686 | ||
3687 | break; | |
3688 | case PIPE_C: | |
3689 | cpt_enable_fdi_bc_bifurcation(dev); | |
3690 | ||
3691 | break; | |
3692 | default: | |
3693 | BUG(); | |
3694 | } | |
3695 | } | |
3696 | ||
f67a559d JB |
3697 | /* |
3698 | * Enable PCH resources required for PCH ports: | |
3699 | * - PCH PLLs | |
3700 | * - FDI training & RX/TX | |
3701 | * - update transcoder timings | |
3702 | * - DP transcoding bits | |
3703 | * - transcoder | |
3704 | */ | |
3705 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
3706 | { |
3707 | struct drm_device *dev = crtc->dev; | |
3708 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3709 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3710 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 3711 | u32 reg, temp; |
2c07245f | 3712 | |
ab9412ba | 3713 | assert_pch_transcoder_disabled(dev_priv, pipe); |
e7e164db | 3714 | |
1fbc0d78 DV |
3715 | if (IS_IVYBRIDGE(dev)) |
3716 | ivybridge_update_fdi_bc_bifurcation(intel_crtc); | |
3717 | ||
cd986abb DV |
3718 | /* Write the TU size bits before fdi link training, so that error |
3719 | * detection works. */ | |
3720 | I915_WRITE(FDI_RX_TUSIZE1(pipe), | |
3721 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
3722 | ||
c98e9dcf | 3723 | /* For PCH output, training FDI link */ |
674cf967 | 3724 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 3725 | |
3ad8a208 DV |
3726 | /* We need to program the right clock selection before writing the pixel |
3727 | * mutliplier into the DPLL. */ | |
303b81e0 | 3728 | if (HAS_PCH_CPT(dev)) { |
ee7b9f93 | 3729 | u32 sel; |
4b645f14 | 3730 | |
c98e9dcf | 3731 | temp = I915_READ(PCH_DPLL_SEL); |
11887397 DV |
3732 | temp |= TRANS_DPLL_ENABLE(pipe); |
3733 | sel = TRANS_DPLLB_SEL(pipe); | |
a43f6e0f | 3734 | if (intel_crtc->config.shared_dpll == DPLL_ID_PCH_PLL_B) |
ee7b9f93 JB |
3735 | temp |= sel; |
3736 | else | |
3737 | temp &= ~sel; | |
c98e9dcf | 3738 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 3739 | } |
5eddb70b | 3740 | |
3ad8a208 DV |
3741 | /* XXX: pch pll's can be enabled any time before we enable the PCH |
3742 | * transcoder, and we actually should do this to not upset any PCH | |
3743 | * transcoder that already use the clock when we share it. | |
3744 | * | |
3745 | * Note that enable_shared_dpll tries to do the right thing, but | |
3746 | * get_shared_dpll unconditionally resets the pll - we need that to have | |
3747 | * the right LVDS enable sequence. */ | |
85b3894f | 3748 | intel_enable_shared_dpll(intel_crtc); |
3ad8a208 | 3749 | |
d9b6cb56 JB |
3750 | /* set transcoder timing, panel must allow it */ |
3751 | assert_panel_unlocked(dev_priv, pipe); | |
275f01b2 | 3752 | ironlake_pch_transcoder_set_timings(intel_crtc, pipe); |
8db9d77b | 3753 | |
303b81e0 | 3754 | intel_fdi_normal_train(crtc); |
5e84e1a4 | 3755 | |
c98e9dcf JB |
3756 | /* For PCH DP, enable TRANS_DP_CTL */ |
3757 | if (HAS_PCH_CPT(dev) && | |
417e822d KP |
3758 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
3759 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
dfd07d72 | 3760 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5; |
5eddb70b CW |
3761 | reg = TRANS_DP_CTL(pipe); |
3762 | temp = I915_READ(reg); | |
3763 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
3764 | TRANS_DP_SYNC_MASK | |
3765 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
3766 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
3767 | TRANS_DP_ENH_FRAMING); | |
9325c9f0 | 3768 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
3769 | |
3770 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 3771 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 3772 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 3773 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
3774 | |
3775 | switch (intel_trans_dp_port_sel(crtc)) { | |
3776 | case PCH_DP_B: | |
5eddb70b | 3777 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
3778 | break; |
3779 | case PCH_DP_C: | |
5eddb70b | 3780 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
3781 | break; |
3782 | case PCH_DP_D: | |
5eddb70b | 3783 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
3784 | break; |
3785 | default: | |
e95d41e1 | 3786 | BUG(); |
32f9d658 | 3787 | } |
2c07245f | 3788 | |
5eddb70b | 3789 | I915_WRITE(reg, temp); |
6be4a607 | 3790 | } |
b52eb4dc | 3791 | |
b8a4f404 | 3792 | ironlake_enable_pch_transcoder(dev_priv, pipe); |
f67a559d JB |
3793 | } |
3794 | ||
1507e5bd PZ |
3795 | static void lpt_pch_enable(struct drm_crtc *crtc) |
3796 | { | |
3797 | struct drm_device *dev = crtc->dev; | |
3798 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3799 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3b117c8f | 3800 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
1507e5bd | 3801 | |
ab9412ba | 3802 | assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A); |
1507e5bd | 3803 | |
8c52b5e8 | 3804 | lpt_program_iclkip(crtc); |
1507e5bd | 3805 | |
0540e488 | 3806 | /* Set transcoder timing. */ |
275f01b2 | 3807 | ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A); |
1507e5bd | 3808 | |
937bb610 | 3809 | lpt_enable_pch_transcoder(dev_priv, cpu_transcoder); |
f67a559d JB |
3810 | } |
3811 | ||
716c2e55 | 3812 | void intel_put_shared_dpll(struct intel_crtc *crtc) |
ee7b9f93 | 3813 | { |
e2b78267 | 3814 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); |
ee7b9f93 JB |
3815 | |
3816 | if (pll == NULL) | |
3817 | return; | |
3818 | ||
3819 | if (pll->refcount == 0) { | |
46edb027 | 3820 | WARN(1, "bad %s refcount\n", pll->name); |
ee7b9f93 JB |
3821 | return; |
3822 | } | |
3823 | ||
f4a091c7 DV |
3824 | if (--pll->refcount == 0) { |
3825 | WARN_ON(pll->on); | |
3826 | WARN_ON(pll->active); | |
3827 | } | |
3828 | ||
a43f6e0f | 3829 | crtc->config.shared_dpll = DPLL_ID_PRIVATE; |
ee7b9f93 JB |
3830 | } |
3831 | ||
716c2e55 | 3832 | struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc) |
ee7b9f93 | 3833 | { |
e2b78267 DV |
3834 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; |
3835 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); | |
3836 | enum intel_dpll_id i; | |
ee7b9f93 | 3837 | |
ee7b9f93 | 3838 | if (pll) { |
46edb027 DV |
3839 | DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n", |
3840 | crtc->base.base.id, pll->name); | |
e2b78267 | 3841 | intel_put_shared_dpll(crtc); |
ee7b9f93 JB |
3842 | } |
3843 | ||
98b6bd99 DV |
3844 | if (HAS_PCH_IBX(dev_priv->dev)) { |
3845 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
d94ab068 | 3846 | i = (enum intel_dpll_id) crtc->pipe; |
e72f9fbf | 3847 | pll = &dev_priv->shared_dplls[i]; |
98b6bd99 | 3848 | |
46edb027 DV |
3849 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n", |
3850 | crtc->base.base.id, pll->name); | |
98b6bd99 | 3851 | |
f2a69f44 DV |
3852 | WARN_ON(pll->refcount); |
3853 | ||
98b6bd99 DV |
3854 | goto found; |
3855 | } | |
3856 | ||
e72f9fbf DV |
3857 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
3858 | pll = &dev_priv->shared_dplls[i]; | |
ee7b9f93 JB |
3859 | |
3860 | /* Only want to check enabled timings first */ | |
3861 | if (pll->refcount == 0) | |
3862 | continue; | |
3863 | ||
b89a1d39 DV |
3864 | if (memcmp(&crtc->config.dpll_hw_state, &pll->hw_state, |
3865 | sizeof(pll->hw_state)) == 0) { | |
46edb027 | 3866 | DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n", |
e2b78267 | 3867 | crtc->base.base.id, |
46edb027 | 3868 | pll->name, pll->refcount, pll->active); |
ee7b9f93 JB |
3869 | |
3870 | goto found; | |
3871 | } | |
3872 | } | |
3873 | ||
3874 | /* Ok no matching timings, maybe there's a free one? */ | |
e72f9fbf DV |
3875 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
3876 | pll = &dev_priv->shared_dplls[i]; | |
ee7b9f93 | 3877 | if (pll->refcount == 0) { |
46edb027 DV |
3878 | DRM_DEBUG_KMS("CRTC:%d allocated %s\n", |
3879 | crtc->base.base.id, pll->name); | |
ee7b9f93 JB |
3880 | goto found; |
3881 | } | |
3882 | } | |
3883 | ||
3884 | return NULL; | |
3885 | ||
3886 | found: | |
f2a69f44 DV |
3887 | if (pll->refcount == 0) |
3888 | pll->hw_state = crtc->config.dpll_hw_state; | |
3889 | ||
a43f6e0f | 3890 | crtc->config.shared_dpll = i; |
46edb027 DV |
3891 | DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name, |
3892 | pipe_name(crtc->pipe)); | |
ee7b9f93 | 3893 | |
cdbd2316 | 3894 | pll->refcount++; |
e04c7350 | 3895 | |
ee7b9f93 JB |
3896 | return pll; |
3897 | } | |
3898 | ||
a1520318 | 3899 | static void cpt_verify_modeset(struct drm_device *dev, int pipe) |
d4270e57 JB |
3900 | { |
3901 | struct drm_i915_private *dev_priv = dev->dev_private; | |
23670b32 | 3902 | int dslreg = PIPEDSL(pipe); |
d4270e57 JB |
3903 | u32 temp; |
3904 | ||
3905 | temp = I915_READ(dslreg); | |
3906 | udelay(500); | |
3907 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
d4270e57 | 3908 | if (wait_for(I915_READ(dslreg) != temp, 5)) |
84f44ce7 | 3909 | DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe)); |
d4270e57 JB |
3910 | } |
3911 | } | |
3912 | ||
b074cec8 JB |
3913 | static void ironlake_pfit_enable(struct intel_crtc *crtc) |
3914 | { | |
3915 | struct drm_device *dev = crtc->base.dev; | |
3916 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3917 | int pipe = crtc->pipe; | |
3918 | ||
fd4daa9c | 3919 | if (crtc->config.pch_pfit.enabled) { |
b074cec8 JB |
3920 | /* Force use of hard-coded filter coefficients |
3921 | * as some pre-programmed values are broken, | |
3922 | * e.g. x201. | |
3923 | */ | |
3924 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) | |
3925 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 | | |
3926 | PF_PIPE_SEL_IVB(pipe)); | |
3927 | else | |
3928 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); | |
3929 | I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos); | |
3930 | I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size); | |
d4270e57 JB |
3931 | } |
3932 | } | |
3933 | ||
bb53d4ae VS |
3934 | static void intel_enable_planes(struct drm_crtc *crtc) |
3935 | { | |
3936 | struct drm_device *dev = crtc->dev; | |
3937 | enum pipe pipe = to_intel_crtc(crtc)->pipe; | |
af2b653b | 3938 | struct drm_plane *plane; |
bb53d4ae VS |
3939 | struct intel_plane *intel_plane; |
3940 | ||
af2b653b MR |
3941 | drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) { |
3942 | intel_plane = to_intel_plane(plane); | |
bb53d4ae VS |
3943 | if (intel_plane->pipe == pipe) |
3944 | intel_plane_restore(&intel_plane->base); | |
af2b653b | 3945 | } |
bb53d4ae VS |
3946 | } |
3947 | ||
3948 | static void intel_disable_planes(struct drm_crtc *crtc) | |
3949 | { | |
3950 | struct drm_device *dev = crtc->dev; | |
3951 | enum pipe pipe = to_intel_crtc(crtc)->pipe; | |
af2b653b | 3952 | struct drm_plane *plane; |
bb53d4ae VS |
3953 | struct intel_plane *intel_plane; |
3954 | ||
af2b653b MR |
3955 | drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) { |
3956 | intel_plane = to_intel_plane(plane); | |
bb53d4ae VS |
3957 | if (intel_plane->pipe == pipe) |
3958 | intel_plane_disable(&intel_plane->base); | |
af2b653b | 3959 | } |
bb53d4ae VS |
3960 | } |
3961 | ||
20bc8673 | 3962 | void hsw_enable_ips(struct intel_crtc *crtc) |
d77e4531 | 3963 | { |
cea165c3 VS |
3964 | struct drm_device *dev = crtc->base.dev; |
3965 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d77e4531 PZ |
3966 | |
3967 | if (!crtc->config.ips_enabled) | |
3968 | return; | |
3969 | ||
cea165c3 VS |
3970 | /* We can only enable IPS after we enable a plane and wait for a vblank */ |
3971 | intel_wait_for_vblank(dev, crtc->pipe); | |
3972 | ||
d77e4531 | 3973 | assert_plane_enabled(dev_priv, crtc->plane); |
cea165c3 | 3974 | if (IS_BROADWELL(dev)) { |
2a114cc1 BW |
3975 | mutex_lock(&dev_priv->rps.hw_lock); |
3976 | WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0xc0000000)); | |
3977 | mutex_unlock(&dev_priv->rps.hw_lock); | |
3978 | /* Quoting Art Runyan: "its not safe to expect any particular | |
3979 | * value in IPS_CTL bit 31 after enabling IPS through the | |
e59150dc JB |
3980 | * mailbox." Moreover, the mailbox may return a bogus state, |
3981 | * so we need to just enable it and continue on. | |
2a114cc1 BW |
3982 | */ |
3983 | } else { | |
3984 | I915_WRITE(IPS_CTL, IPS_ENABLE); | |
3985 | /* The bit only becomes 1 in the next vblank, so this wait here | |
3986 | * is essentially intel_wait_for_vblank. If we don't have this | |
3987 | * and don't wait for vblanks until the end of crtc_enable, then | |
3988 | * the HW state readout code will complain that the expected | |
3989 | * IPS_CTL value is not the one we read. */ | |
3990 | if (wait_for(I915_READ_NOTRACE(IPS_CTL) & IPS_ENABLE, 50)) | |
3991 | DRM_ERROR("Timed out waiting for IPS enable\n"); | |
3992 | } | |
d77e4531 PZ |
3993 | } |
3994 | ||
20bc8673 | 3995 | void hsw_disable_ips(struct intel_crtc *crtc) |
d77e4531 PZ |
3996 | { |
3997 | struct drm_device *dev = crtc->base.dev; | |
3998 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3999 | ||
4000 | if (!crtc->config.ips_enabled) | |
4001 | return; | |
4002 | ||
4003 | assert_plane_enabled(dev_priv, crtc->plane); | |
23d0b130 | 4004 | if (IS_BROADWELL(dev)) { |
2a114cc1 BW |
4005 | mutex_lock(&dev_priv->rps.hw_lock); |
4006 | WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0)); | |
4007 | mutex_unlock(&dev_priv->rps.hw_lock); | |
23d0b130 BW |
4008 | /* wait for pcode to finish disabling IPS, which may take up to 42ms */ |
4009 | if (wait_for((I915_READ(IPS_CTL) & IPS_ENABLE) == 0, 42)) | |
4010 | DRM_ERROR("Timed out waiting for IPS disable\n"); | |
e59150dc | 4011 | } else { |
2a114cc1 | 4012 | I915_WRITE(IPS_CTL, 0); |
e59150dc JB |
4013 | POSTING_READ(IPS_CTL); |
4014 | } | |
d77e4531 PZ |
4015 | |
4016 | /* We need to wait for a vblank before we can disable the plane. */ | |
4017 | intel_wait_for_vblank(dev, crtc->pipe); | |
4018 | } | |
4019 | ||
4020 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ | |
4021 | static void intel_crtc_load_lut(struct drm_crtc *crtc) | |
4022 | { | |
4023 | struct drm_device *dev = crtc->dev; | |
4024 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4025 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4026 | enum pipe pipe = intel_crtc->pipe; | |
4027 | int palreg = PALETTE(pipe); | |
4028 | int i; | |
4029 | bool reenable_ips = false; | |
4030 | ||
4031 | /* The clocks have to be on to load the palette. */ | |
4032 | if (!crtc->enabled || !intel_crtc->active) | |
4033 | return; | |
4034 | ||
4035 | if (!HAS_PCH_SPLIT(dev_priv->dev)) { | |
4036 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI)) | |
4037 | assert_dsi_pll_enabled(dev_priv); | |
4038 | else | |
4039 | assert_pll_enabled(dev_priv, pipe); | |
4040 | } | |
4041 | ||
4042 | /* use legacy palette for Ironlake */ | |
7a1db49a | 4043 | if (!HAS_GMCH_DISPLAY(dev)) |
d77e4531 PZ |
4044 | palreg = LGC_PALETTE(pipe); |
4045 | ||
4046 | /* Workaround : Do not read or write the pipe palette/gamma data while | |
4047 | * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled. | |
4048 | */ | |
41e6fc4c | 4049 | if (IS_HASWELL(dev) && intel_crtc->config.ips_enabled && |
d77e4531 PZ |
4050 | ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) == |
4051 | GAMMA_MODE_MODE_SPLIT)) { | |
4052 | hsw_disable_ips(intel_crtc); | |
4053 | reenable_ips = true; | |
4054 | } | |
4055 | ||
4056 | for (i = 0; i < 256; i++) { | |
4057 | I915_WRITE(palreg + 4 * i, | |
4058 | (intel_crtc->lut_r[i] << 16) | | |
4059 | (intel_crtc->lut_g[i] << 8) | | |
4060 | intel_crtc->lut_b[i]); | |
4061 | } | |
4062 | ||
4063 | if (reenable_ips) | |
4064 | hsw_enable_ips(intel_crtc); | |
4065 | } | |
4066 | ||
d3eedb1a VS |
4067 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
4068 | { | |
4069 | if (!enable && intel_crtc->overlay) { | |
4070 | struct drm_device *dev = intel_crtc->base.dev; | |
4071 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4072 | ||
4073 | mutex_lock(&dev->struct_mutex); | |
4074 | dev_priv->mm.interruptible = false; | |
4075 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
4076 | dev_priv->mm.interruptible = true; | |
4077 | mutex_unlock(&dev->struct_mutex); | |
4078 | } | |
4079 | ||
4080 | /* Let userspace switch the overlay on again. In most cases userspace | |
4081 | * has to recompute where to put it anyway. | |
4082 | */ | |
4083 | } | |
4084 | ||
d3eedb1a | 4085 | static void intel_crtc_enable_planes(struct drm_crtc *crtc) |
a5c4d7bc VS |
4086 | { |
4087 | struct drm_device *dev = crtc->dev; | |
a5c4d7bc VS |
4088 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4089 | int pipe = intel_crtc->pipe; | |
a5c4d7bc | 4090 | |
fdd508a6 | 4091 | intel_enable_primary_hw_plane(crtc->primary, crtc); |
a5c4d7bc VS |
4092 | intel_enable_planes(crtc); |
4093 | intel_crtc_update_cursor(crtc, true); | |
d3eedb1a | 4094 | intel_crtc_dpms_overlay(intel_crtc, true); |
a5c4d7bc VS |
4095 | |
4096 | hsw_enable_ips(intel_crtc); | |
4097 | ||
4098 | mutex_lock(&dev->struct_mutex); | |
4099 | intel_update_fbc(dev); | |
4100 | mutex_unlock(&dev->struct_mutex); | |
f99d7069 DV |
4101 | |
4102 | /* | |
4103 | * FIXME: Once we grow proper nuclear flip support out of this we need | |
4104 | * to compute the mask of flip planes precisely. For the time being | |
4105 | * consider this a flip from a NULL plane. | |
4106 | */ | |
4107 | intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_ALL_MASK(pipe)); | |
a5c4d7bc VS |
4108 | } |
4109 | ||
d3eedb1a | 4110 | static void intel_crtc_disable_planes(struct drm_crtc *crtc) |
a5c4d7bc VS |
4111 | { |
4112 | struct drm_device *dev = crtc->dev; | |
4113 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4114 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4115 | int pipe = intel_crtc->pipe; | |
4116 | int plane = intel_crtc->plane; | |
4117 | ||
4118 | intel_crtc_wait_for_pending_flips(crtc); | |
a5c4d7bc VS |
4119 | |
4120 | if (dev_priv->fbc.plane == plane) | |
4121 | intel_disable_fbc(dev); | |
4122 | ||
4123 | hsw_disable_ips(intel_crtc); | |
4124 | ||
d3eedb1a | 4125 | intel_crtc_dpms_overlay(intel_crtc, false); |
a5c4d7bc VS |
4126 | intel_crtc_update_cursor(crtc, false); |
4127 | intel_disable_planes(crtc); | |
fdd508a6 | 4128 | intel_disable_primary_hw_plane(crtc->primary, crtc); |
f98551ae | 4129 | |
f99d7069 DV |
4130 | /* |
4131 | * FIXME: Once we grow proper nuclear flip support out of this we need | |
4132 | * to compute the mask of flip planes precisely. For the time being | |
4133 | * consider this a flip to a NULL plane. | |
4134 | */ | |
4135 | intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_ALL_MASK(pipe)); | |
a5c4d7bc VS |
4136 | } |
4137 | ||
f67a559d JB |
4138 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
4139 | { | |
4140 | struct drm_device *dev = crtc->dev; | |
4141 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4142 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 4143 | struct intel_encoder *encoder; |
f67a559d | 4144 | int pipe = intel_crtc->pipe; |
f67a559d | 4145 | |
08a48469 DV |
4146 | WARN_ON(!crtc->enabled); |
4147 | ||
f67a559d JB |
4148 | if (intel_crtc->active) |
4149 | return; | |
4150 | ||
b14b1055 DV |
4151 | if (intel_crtc->config.has_pch_encoder) |
4152 | intel_prepare_shared_dpll(intel_crtc); | |
4153 | ||
29407aab DV |
4154 | if (intel_crtc->config.has_dp_encoder) |
4155 | intel_dp_set_m_n(intel_crtc); | |
4156 | ||
4157 | intel_set_pipe_timings(intel_crtc); | |
4158 | ||
4159 | if (intel_crtc->config.has_pch_encoder) { | |
4160 | intel_cpu_transcoder_set_m_n(intel_crtc, | |
f769cd24 | 4161 | &intel_crtc->config.fdi_m_n, NULL); |
29407aab DV |
4162 | } |
4163 | ||
4164 | ironlake_set_pipeconf(crtc); | |
4165 | ||
f67a559d | 4166 | intel_crtc->active = true; |
8664281b | 4167 | |
a72e4c9f DV |
4168 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4169 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true); | |
8664281b | 4170 | |
f6736a1a | 4171 | for_each_encoder_on_crtc(dev, crtc, encoder) |
952735ee DV |
4172 | if (encoder->pre_enable) |
4173 | encoder->pre_enable(encoder); | |
f67a559d | 4174 | |
5bfe2ac0 | 4175 | if (intel_crtc->config.has_pch_encoder) { |
fff367c7 DV |
4176 | /* Note: FDI PLL enabling _must_ be done before we enable the |
4177 | * cpu pipes, hence this is separate from all the other fdi/pch | |
4178 | * enabling. */ | |
88cefb6c | 4179 | ironlake_fdi_pll_enable(intel_crtc); |
46b6f814 DV |
4180 | } else { |
4181 | assert_fdi_tx_disabled(dev_priv, pipe); | |
4182 | assert_fdi_rx_disabled(dev_priv, pipe); | |
4183 | } | |
f67a559d | 4184 | |
b074cec8 | 4185 | ironlake_pfit_enable(intel_crtc); |
f67a559d | 4186 | |
9c54c0dd JB |
4187 | /* |
4188 | * On ILK+ LUT must be loaded before the pipe is running but with | |
4189 | * clocks enabled | |
4190 | */ | |
4191 | intel_crtc_load_lut(crtc); | |
4192 | ||
f37fcc2a | 4193 | intel_update_watermarks(crtc); |
e1fdc473 | 4194 | intel_enable_pipe(intel_crtc); |
f67a559d | 4195 | |
5bfe2ac0 | 4196 | if (intel_crtc->config.has_pch_encoder) |
f67a559d | 4197 | ironlake_pch_enable(crtc); |
c98e9dcf | 4198 | |
fa5c73b1 DV |
4199 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4200 | encoder->enable(encoder); | |
61b77ddd DV |
4201 | |
4202 | if (HAS_PCH_CPT(dev)) | |
a1520318 | 4203 | cpt_verify_modeset(dev, intel_crtc->pipe); |
6ce94100 | 4204 | |
4b3a9526 VS |
4205 | assert_vblank_disabled(crtc); |
4206 | drm_crtc_vblank_on(crtc); | |
4207 | ||
d3eedb1a | 4208 | intel_crtc_enable_planes(crtc); |
6be4a607 JB |
4209 | } |
4210 | ||
42db64ef PZ |
4211 | /* IPS only exists on ULT machines and is tied to pipe A. */ |
4212 | static bool hsw_crtc_supports_ips(struct intel_crtc *crtc) | |
4213 | { | |
f5adf94e | 4214 | return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A; |
42db64ef PZ |
4215 | } |
4216 | ||
e4916946 PZ |
4217 | /* |
4218 | * This implements the workaround described in the "notes" section of the mode | |
4219 | * set sequence documentation. When going from no pipes or single pipe to | |
4220 | * multiple pipes, and planes are enabled after the pipe, we need to wait at | |
4221 | * least 2 vblanks on the first pipe before enabling planes on the second pipe. | |
4222 | */ | |
4223 | static void haswell_mode_set_planes_workaround(struct intel_crtc *crtc) | |
4224 | { | |
4225 | struct drm_device *dev = crtc->base.dev; | |
4226 | struct intel_crtc *crtc_it, *other_active_crtc = NULL; | |
4227 | ||
4228 | /* We want to get the other_active_crtc only if there's only 1 other | |
4229 | * active crtc. */ | |
d3fcc808 | 4230 | for_each_intel_crtc(dev, crtc_it) { |
e4916946 PZ |
4231 | if (!crtc_it->active || crtc_it == crtc) |
4232 | continue; | |
4233 | ||
4234 | if (other_active_crtc) | |
4235 | return; | |
4236 | ||
4237 | other_active_crtc = crtc_it; | |
4238 | } | |
4239 | if (!other_active_crtc) | |
4240 | return; | |
4241 | ||
4242 | intel_wait_for_vblank(dev, other_active_crtc->pipe); | |
4243 | intel_wait_for_vblank(dev, other_active_crtc->pipe); | |
4244 | } | |
4245 | ||
4f771f10 PZ |
4246 | static void haswell_crtc_enable(struct drm_crtc *crtc) |
4247 | { | |
4248 | struct drm_device *dev = crtc->dev; | |
4249 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4250 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4251 | struct intel_encoder *encoder; | |
4252 | int pipe = intel_crtc->pipe; | |
4f771f10 PZ |
4253 | |
4254 | WARN_ON(!crtc->enabled); | |
4255 | ||
4256 | if (intel_crtc->active) | |
4257 | return; | |
4258 | ||
df8ad70c DV |
4259 | if (intel_crtc_to_shared_dpll(intel_crtc)) |
4260 | intel_enable_shared_dpll(intel_crtc); | |
4261 | ||
229fca97 DV |
4262 | if (intel_crtc->config.has_dp_encoder) |
4263 | intel_dp_set_m_n(intel_crtc); | |
4264 | ||
4265 | intel_set_pipe_timings(intel_crtc); | |
4266 | ||
ebb69c95 CT |
4267 | if (intel_crtc->config.cpu_transcoder != TRANSCODER_EDP) { |
4268 | I915_WRITE(PIPE_MULT(intel_crtc->config.cpu_transcoder), | |
4269 | intel_crtc->config.pixel_multiplier - 1); | |
4270 | } | |
4271 | ||
229fca97 DV |
4272 | if (intel_crtc->config.has_pch_encoder) { |
4273 | intel_cpu_transcoder_set_m_n(intel_crtc, | |
f769cd24 | 4274 | &intel_crtc->config.fdi_m_n, NULL); |
229fca97 DV |
4275 | } |
4276 | ||
4277 | haswell_set_pipeconf(crtc); | |
4278 | ||
4279 | intel_set_pipe_csc(crtc); | |
4280 | ||
4f771f10 | 4281 | intel_crtc->active = true; |
8664281b | 4282 | |
a72e4c9f | 4283 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4f771f10 PZ |
4284 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4285 | if (encoder->pre_enable) | |
4286 | encoder->pre_enable(encoder); | |
4287 | ||
4fe9467d | 4288 | if (intel_crtc->config.has_pch_encoder) { |
a72e4c9f DV |
4289 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
4290 | true); | |
4fe9467d ID |
4291 | dev_priv->display.fdi_link_train(crtc); |
4292 | } | |
4293 | ||
1f544388 | 4294 | intel_ddi_enable_pipe_clock(intel_crtc); |
4f771f10 | 4295 | |
b074cec8 | 4296 | ironlake_pfit_enable(intel_crtc); |
4f771f10 PZ |
4297 | |
4298 | /* | |
4299 | * On ILK+ LUT must be loaded before the pipe is running but with | |
4300 | * clocks enabled | |
4301 | */ | |
4302 | intel_crtc_load_lut(crtc); | |
4303 | ||
1f544388 | 4304 | intel_ddi_set_pipe_settings(crtc); |
8228c251 | 4305 | intel_ddi_enable_transcoder_func(crtc); |
4f771f10 | 4306 | |
f37fcc2a | 4307 | intel_update_watermarks(crtc); |
e1fdc473 | 4308 | intel_enable_pipe(intel_crtc); |
42db64ef | 4309 | |
5bfe2ac0 | 4310 | if (intel_crtc->config.has_pch_encoder) |
1507e5bd | 4311 | lpt_pch_enable(crtc); |
4f771f10 | 4312 | |
0e32b39c DA |
4313 | if (intel_crtc->config.dp_encoder_is_mst) |
4314 | intel_ddi_set_vc_payload_alloc(crtc, true); | |
4315 | ||
8807e55b | 4316 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
4f771f10 | 4317 | encoder->enable(encoder); |
8807e55b JN |
4318 | intel_opregion_notify_encoder(encoder, true); |
4319 | } | |
4f771f10 | 4320 | |
4b3a9526 VS |
4321 | assert_vblank_disabled(crtc); |
4322 | drm_crtc_vblank_on(crtc); | |
4323 | ||
e4916946 PZ |
4324 | /* If we change the relative order between pipe/planes enabling, we need |
4325 | * to change the workaround. */ | |
4326 | haswell_mode_set_planes_workaround(intel_crtc); | |
d3eedb1a | 4327 | intel_crtc_enable_planes(crtc); |
4f771f10 PZ |
4328 | } |
4329 | ||
3f8dce3a DV |
4330 | static void ironlake_pfit_disable(struct intel_crtc *crtc) |
4331 | { | |
4332 | struct drm_device *dev = crtc->base.dev; | |
4333 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4334 | int pipe = crtc->pipe; | |
4335 | ||
4336 | /* To avoid upsetting the power well on haswell only disable the pfit if | |
4337 | * it's in use. The hw state code will make sure we get this right. */ | |
fd4daa9c | 4338 | if (crtc->config.pch_pfit.enabled) { |
3f8dce3a DV |
4339 | I915_WRITE(PF_CTL(pipe), 0); |
4340 | I915_WRITE(PF_WIN_POS(pipe), 0); | |
4341 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
4342 | } | |
4343 | } | |
4344 | ||
6be4a607 JB |
4345 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
4346 | { | |
4347 | struct drm_device *dev = crtc->dev; | |
4348 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4349 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 4350 | struct intel_encoder *encoder; |
6be4a607 | 4351 | int pipe = intel_crtc->pipe; |
5eddb70b | 4352 | u32 reg, temp; |
b52eb4dc | 4353 | |
f7abfe8b CW |
4354 | if (!intel_crtc->active) |
4355 | return; | |
4356 | ||
d3eedb1a | 4357 | intel_crtc_disable_planes(crtc); |
a5c4d7bc | 4358 | |
4b3a9526 VS |
4359 | drm_crtc_vblank_off(crtc); |
4360 | assert_vblank_disabled(crtc); | |
4361 | ||
ea9d758d DV |
4362 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4363 | encoder->disable(encoder); | |
4364 | ||
d925c59a | 4365 | if (intel_crtc->config.has_pch_encoder) |
a72e4c9f | 4366 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false); |
d925c59a | 4367 | |
575f7ab7 | 4368 | intel_disable_pipe(intel_crtc); |
32f9d658 | 4369 | |
3f8dce3a | 4370 | ironlake_pfit_disable(intel_crtc); |
2c07245f | 4371 | |
bf49ec8c DV |
4372 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4373 | if (encoder->post_disable) | |
4374 | encoder->post_disable(encoder); | |
2c07245f | 4375 | |
d925c59a DV |
4376 | if (intel_crtc->config.has_pch_encoder) { |
4377 | ironlake_fdi_disable(crtc); | |
913d8d11 | 4378 | |
d925c59a | 4379 | ironlake_disable_pch_transcoder(dev_priv, pipe); |
a72e4c9f | 4380 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true); |
6be4a607 | 4381 | |
d925c59a DV |
4382 | if (HAS_PCH_CPT(dev)) { |
4383 | /* disable TRANS_DP_CTL */ | |
4384 | reg = TRANS_DP_CTL(pipe); | |
4385 | temp = I915_READ(reg); | |
4386 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | | |
4387 | TRANS_DP_PORT_SEL_MASK); | |
4388 | temp |= TRANS_DP_PORT_SEL_NONE; | |
4389 | I915_WRITE(reg, temp); | |
4390 | ||
4391 | /* disable DPLL_SEL */ | |
4392 | temp = I915_READ(PCH_DPLL_SEL); | |
11887397 | 4393 | temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe)); |
d925c59a | 4394 | I915_WRITE(PCH_DPLL_SEL, temp); |
9db4a9c7 | 4395 | } |
e3421a18 | 4396 | |
d925c59a | 4397 | /* disable PCH DPLL */ |
e72f9fbf | 4398 | intel_disable_shared_dpll(intel_crtc); |
8db9d77b | 4399 | |
d925c59a DV |
4400 | ironlake_fdi_pll_disable(intel_crtc); |
4401 | } | |
6b383a7f | 4402 | |
f7abfe8b | 4403 | intel_crtc->active = false; |
46ba614c | 4404 | intel_update_watermarks(crtc); |
d1ebd816 BW |
4405 | |
4406 | mutex_lock(&dev->struct_mutex); | |
6b383a7f | 4407 | intel_update_fbc(dev); |
d1ebd816 | 4408 | mutex_unlock(&dev->struct_mutex); |
6be4a607 | 4409 | } |
1b3c7a47 | 4410 | |
4f771f10 | 4411 | static void haswell_crtc_disable(struct drm_crtc *crtc) |
ee7b9f93 | 4412 | { |
4f771f10 PZ |
4413 | struct drm_device *dev = crtc->dev; |
4414 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee7b9f93 | 4415 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4f771f10 | 4416 | struct intel_encoder *encoder; |
3b117c8f | 4417 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
ee7b9f93 | 4418 | |
4f771f10 PZ |
4419 | if (!intel_crtc->active) |
4420 | return; | |
4421 | ||
d3eedb1a | 4422 | intel_crtc_disable_planes(crtc); |
dda9a66a | 4423 | |
4b3a9526 VS |
4424 | drm_crtc_vblank_off(crtc); |
4425 | assert_vblank_disabled(crtc); | |
4426 | ||
8807e55b JN |
4427 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
4428 | intel_opregion_notify_encoder(encoder, false); | |
4f771f10 | 4429 | encoder->disable(encoder); |
8807e55b | 4430 | } |
4f771f10 | 4431 | |
8664281b | 4432 | if (intel_crtc->config.has_pch_encoder) |
a72e4c9f DV |
4433 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
4434 | false); | |
575f7ab7 | 4435 | intel_disable_pipe(intel_crtc); |
4f771f10 | 4436 | |
a4bf214f VS |
4437 | if (intel_crtc->config.dp_encoder_is_mst) |
4438 | intel_ddi_set_vc_payload_alloc(crtc, false); | |
4439 | ||
ad80a810 | 4440 | intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder); |
4f771f10 | 4441 | |
3f8dce3a | 4442 | ironlake_pfit_disable(intel_crtc); |
4f771f10 | 4443 | |
1f544388 | 4444 | intel_ddi_disable_pipe_clock(intel_crtc); |
4f771f10 | 4445 | |
88adfff1 | 4446 | if (intel_crtc->config.has_pch_encoder) { |
ab4d966c | 4447 | lpt_disable_pch_transcoder(dev_priv); |
a72e4c9f DV |
4448 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
4449 | true); | |
1ad960f2 | 4450 | intel_ddi_fdi_disable(crtc); |
83616634 | 4451 | } |
4f771f10 | 4452 | |
97b040aa ID |
4453 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4454 | if (encoder->post_disable) | |
4455 | encoder->post_disable(encoder); | |
4456 | ||
4f771f10 | 4457 | intel_crtc->active = false; |
46ba614c | 4458 | intel_update_watermarks(crtc); |
4f771f10 PZ |
4459 | |
4460 | mutex_lock(&dev->struct_mutex); | |
4461 | intel_update_fbc(dev); | |
4462 | mutex_unlock(&dev->struct_mutex); | |
df8ad70c DV |
4463 | |
4464 | if (intel_crtc_to_shared_dpll(intel_crtc)) | |
4465 | intel_disable_shared_dpll(intel_crtc); | |
4f771f10 PZ |
4466 | } |
4467 | ||
ee7b9f93 JB |
4468 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
4469 | { | |
4470 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
e72f9fbf | 4471 | intel_put_shared_dpll(intel_crtc); |
ee7b9f93 JB |
4472 | } |
4473 | ||
6441ab5f | 4474 | |
2dd24552 JB |
4475 | static void i9xx_pfit_enable(struct intel_crtc *crtc) |
4476 | { | |
4477 | struct drm_device *dev = crtc->base.dev; | |
4478 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4479 | struct intel_crtc_config *pipe_config = &crtc->config; | |
4480 | ||
328d8e82 | 4481 | if (!crtc->config.gmch_pfit.control) |
2dd24552 JB |
4482 | return; |
4483 | ||
2dd24552 | 4484 | /* |
c0b03411 DV |
4485 | * The panel fitter should only be adjusted whilst the pipe is disabled, |
4486 | * according to register description and PRM. | |
2dd24552 | 4487 | */ |
c0b03411 DV |
4488 | WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE); |
4489 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
2dd24552 | 4490 | |
b074cec8 JB |
4491 | I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios); |
4492 | I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control); | |
5a80c45c DV |
4493 | |
4494 | /* Border color in case we don't scale up to the full screen. Black by | |
4495 | * default, change to something else for debugging. */ | |
4496 | I915_WRITE(BCLRPAT(crtc->pipe), 0); | |
2dd24552 JB |
4497 | } |
4498 | ||
d05410f9 DA |
4499 | static enum intel_display_power_domain port_to_power_domain(enum port port) |
4500 | { | |
4501 | switch (port) { | |
4502 | case PORT_A: | |
4503 | return POWER_DOMAIN_PORT_DDI_A_4_LANES; | |
4504 | case PORT_B: | |
4505 | return POWER_DOMAIN_PORT_DDI_B_4_LANES; | |
4506 | case PORT_C: | |
4507 | return POWER_DOMAIN_PORT_DDI_C_4_LANES; | |
4508 | case PORT_D: | |
4509 | return POWER_DOMAIN_PORT_DDI_D_4_LANES; | |
4510 | default: | |
4511 | WARN_ON_ONCE(1); | |
4512 | return POWER_DOMAIN_PORT_OTHER; | |
4513 | } | |
4514 | } | |
4515 | ||
77d22dca ID |
4516 | #define for_each_power_domain(domain, mask) \ |
4517 | for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \ | |
4518 | if ((1 << (domain)) & (mask)) | |
4519 | ||
319be8ae ID |
4520 | enum intel_display_power_domain |
4521 | intel_display_port_power_domain(struct intel_encoder *intel_encoder) | |
4522 | { | |
4523 | struct drm_device *dev = intel_encoder->base.dev; | |
4524 | struct intel_digital_port *intel_dig_port; | |
4525 | ||
4526 | switch (intel_encoder->type) { | |
4527 | case INTEL_OUTPUT_UNKNOWN: | |
4528 | /* Only DDI platforms should ever use this output type */ | |
4529 | WARN_ON_ONCE(!HAS_DDI(dev)); | |
4530 | case INTEL_OUTPUT_DISPLAYPORT: | |
4531 | case INTEL_OUTPUT_HDMI: | |
4532 | case INTEL_OUTPUT_EDP: | |
4533 | intel_dig_port = enc_to_dig_port(&intel_encoder->base); | |
d05410f9 | 4534 | return port_to_power_domain(intel_dig_port->port); |
0e32b39c DA |
4535 | case INTEL_OUTPUT_DP_MST: |
4536 | intel_dig_port = enc_to_mst(&intel_encoder->base)->primary; | |
4537 | return port_to_power_domain(intel_dig_port->port); | |
319be8ae ID |
4538 | case INTEL_OUTPUT_ANALOG: |
4539 | return POWER_DOMAIN_PORT_CRT; | |
4540 | case INTEL_OUTPUT_DSI: | |
4541 | return POWER_DOMAIN_PORT_DSI; | |
4542 | default: | |
4543 | return POWER_DOMAIN_PORT_OTHER; | |
4544 | } | |
4545 | } | |
4546 | ||
4547 | static unsigned long get_crtc_power_domains(struct drm_crtc *crtc) | |
77d22dca | 4548 | { |
319be8ae ID |
4549 | struct drm_device *dev = crtc->dev; |
4550 | struct intel_encoder *intel_encoder; | |
4551 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4552 | enum pipe pipe = intel_crtc->pipe; | |
77d22dca ID |
4553 | unsigned long mask; |
4554 | enum transcoder transcoder; | |
4555 | ||
4556 | transcoder = intel_pipe_to_cpu_transcoder(dev->dev_private, pipe); | |
4557 | ||
4558 | mask = BIT(POWER_DOMAIN_PIPE(pipe)); | |
4559 | mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder)); | |
fabf6e51 DV |
4560 | if (intel_crtc->config.pch_pfit.enabled || |
4561 | intel_crtc->config.pch_pfit.force_thru) | |
77d22dca ID |
4562 | mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe)); |
4563 | ||
319be8ae ID |
4564 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) |
4565 | mask |= BIT(intel_display_port_power_domain(intel_encoder)); | |
4566 | ||
77d22dca ID |
4567 | return mask; |
4568 | } | |
4569 | ||
77d22dca ID |
4570 | static void modeset_update_crtc_power_domains(struct drm_device *dev) |
4571 | { | |
4572 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4573 | unsigned long pipe_domains[I915_MAX_PIPES] = { 0, }; | |
4574 | struct intel_crtc *crtc; | |
4575 | ||
4576 | /* | |
4577 | * First get all needed power domains, then put all unneeded, to avoid | |
4578 | * any unnecessary toggling of the power wells. | |
4579 | */ | |
d3fcc808 | 4580 | for_each_intel_crtc(dev, crtc) { |
77d22dca ID |
4581 | enum intel_display_power_domain domain; |
4582 | ||
4583 | if (!crtc->base.enabled) | |
4584 | continue; | |
4585 | ||
319be8ae | 4586 | pipe_domains[crtc->pipe] = get_crtc_power_domains(&crtc->base); |
77d22dca ID |
4587 | |
4588 | for_each_power_domain(domain, pipe_domains[crtc->pipe]) | |
4589 | intel_display_power_get(dev_priv, domain); | |
4590 | } | |
4591 | ||
d3fcc808 | 4592 | for_each_intel_crtc(dev, crtc) { |
77d22dca ID |
4593 | enum intel_display_power_domain domain; |
4594 | ||
4595 | for_each_power_domain(domain, crtc->enabled_power_domains) | |
4596 | intel_display_power_put(dev_priv, domain); | |
4597 | ||
4598 | crtc->enabled_power_domains = pipe_domains[crtc->pipe]; | |
4599 | } | |
4600 | ||
4601 | intel_display_set_init_power(dev_priv, false); | |
4602 | } | |
4603 | ||
dfcab17e | 4604 | /* returns HPLL frequency in kHz */ |
f8bf63fd | 4605 | static int valleyview_get_vco(struct drm_i915_private *dev_priv) |
30a970c6 | 4606 | { |
586f49dc | 4607 | int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 }; |
30a970c6 | 4608 | |
586f49dc JB |
4609 | /* Obtain SKU information */ |
4610 | mutex_lock(&dev_priv->dpio_lock); | |
4611 | hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) & | |
4612 | CCK_FUSE_HPLL_FREQ_MASK; | |
4613 | mutex_unlock(&dev_priv->dpio_lock); | |
30a970c6 | 4614 | |
dfcab17e | 4615 | return vco_freq[hpll_freq] * 1000; |
30a970c6 JB |
4616 | } |
4617 | ||
f8bf63fd VS |
4618 | static void vlv_update_cdclk(struct drm_device *dev) |
4619 | { | |
4620 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4621 | ||
4622 | dev_priv->vlv_cdclk_freq = dev_priv->display.get_display_clock_speed(dev); | |
43dc52c3 | 4623 | DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz\n", |
f8bf63fd VS |
4624 | dev_priv->vlv_cdclk_freq); |
4625 | ||
4626 | /* | |
4627 | * Program the gmbus_freq based on the cdclk frequency. | |
4628 | * BSpec erroneously claims we should aim for 4MHz, but | |
4629 | * in fact 1MHz is the correct frequency. | |
4630 | */ | |
4631 | I915_WRITE(GMBUSFREQ_VLV, dev_priv->vlv_cdclk_freq); | |
4632 | } | |
4633 | ||
30a970c6 JB |
4634 | /* Adjust CDclk dividers to allow high res or save power if possible */ |
4635 | static void valleyview_set_cdclk(struct drm_device *dev, int cdclk) | |
4636 | { | |
4637 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4638 | u32 val, cmd; | |
4639 | ||
d197b7d3 | 4640 | WARN_ON(dev_priv->display.get_display_clock_speed(dev) != dev_priv->vlv_cdclk_freq); |
d60c4473 | 4641 | |
dfcab17e | 4642 | if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */ |
30a970c6 | 4643 | cmd = 2; |
dfcab17e | 4644 | else if (cdclk == 266667) |
30a970c6 JB |
4645 | cmd = 1; |
4646 | else | |
4647 | cmd = 0; | |
4648 | ||
4649 | mutex_lock(&dev_priv->rps.hw_lock); | |
4650 | val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ); | |
4651 | val &= ~DSPFREQGUAR_MASK; | |
4652 | val |= (cmd << DSPFREQGUAR_SHIFT); | |
4653 | vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val); | |
4654 | if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & | |
4655 | DSPFREQSTAT_MASK) == (cmd << DSPFREQSTAT_SHIFT), | |
4656 | 50)) { | |
4657 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
4658 | } | |
4659 | mutex_unlock(&dev_priv->rps.hw_lock); | |
4660 | ||
dfcab17e | 4661 | if (cdclk == 400000) { |
30a970c6 JB |
4662 | u32 divider, vco; |
4663 | ||
4664 | vco = valleyview_get_vco(dev_priv); | |
dfcab17e | 4665 | divider = DIV_ROUND_CLOSEST(vco << 1, cdclk) - 1; |
30a970c6 JB |
4666 | |
4667 | mutex_lock(&dev_priv->dpio_lock); | |
4668 | /* adjust cdclk divider */ | |
4669 | val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL); | |
9cf33db5 | 4670 | val &= ~DISPLAY_FREQUENCY_VALUES; |
30a970c6 JB |
4671 | val |= divider; |
4672 | vlv_cck_write(dev_priv, CCK_DISPLAY_CLOCK_CONTROL, val); | |
a877e801 VS |
4673 | |
4674 | if (wait_for((vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL) & | |
4675 | DISPLAY_FREQUENCY_STATUS) == (divider << DISPLAY_FREQUENCY_STATUS_SHIFT), | |
4676 | 50)) | |
4677 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
30a970c6 JB |
4678 | mutex_unlock(&dev_priv->dpio_lock); |
4679 | } | |
4680 | ||
4681 | mutex_lock(&dev_priv->dpio_lock); | |
4682 | /* adjust self-refresh exit latency value */ | |
4683 | val = vlv_bunit_read(dev_priv, BUNIT_REG_BISOC); | |
4684 | val &= ~0x7f; | |
4685 | ||
4686 | /* | |
4687 | * For high bandwidth configs, we set a higher latency in the bunit | |
4688 | * so that the core display fetch happens in time to avoid underruns. | |
4689 | */ | |
dfcab17e | 4690 | if (cdclk == 400000) |
30a970c6 JB |
4691 | val |= 4500 / 250; /* 4.5 usec */ |
4692 | else | |
4693 | val |= 3000 / 250; /* 3.0 usec */ | |
4694 | vlv_bunit_write(dev_priv, BUNIT_REG_BISOC, val); | |
4695 | mutex_unlock(&dev_priv->dpio_lock); | |
4696 | ||
f8bf63fd | 4697 | vlv_update_cdclk(dev); |
30a970c6 JB |
4698 | } |
4699 | ||
383c5a6a VS |
4700 | static void cherryview_set_cdclk(struct drm_device *dev, int cdclk) |
4701 | { | |
4702 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4703 | u32 val, cmd; | |
4704 | ||
4705 | WARN_ON(dev_priv->display.get_display_clock_speed(dev) != dev_priv->vlv_cdclk_freq); | |
4706 | ||
4707 | switch (cdclk) { | |
4708 | case 400000: | |
4709 | cmd = 3; | |
4710 | break; | |
4711 | case 333333: | |
4712 | case 320000: | |
4713 | cmd = 2; | |
4714 | break; | |
4715 | case 266667: | |
4716 | cmd = 1; | |
4717 | break; | |
4718 | case 200000: | |
4719 | cmd = 0; | |
4720 | break; | |
4721 | default: | |
4722 | WARN_ON(1); | |
4723 | return; | |
4724 | } | |
4725 | ||
4726 | mutex_lock(&dev_priv->rps.hw_lock); | |
4727 | val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ); | |
4728 | val &= ~DSPFREQGUAR_MASK_CHV; | |
4729 | val |= (cmd << DSPFREQGUAR_SHIFT_CHV); | |
4730 | vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val); | |
4731 | if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & | |
4732 | DSPFREQSTAT_MASK_CHV) == (cmd << DSPFREQSTAT_SHIFT_CHV), | |
4733 | 50)) { | |
4734 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
4735 | } | |
4736 | mutex_unlock(&dev_priv->rps.hw_lock); | |
4737 | ||
4738 | vlv_update_cdclk(dev); | |
4739 | } | |
4740 | ||
30a970c6 JB |
4741 | static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv, |
4742 | int max_pixclk) | |
4743 | { | |
29dc7ef3 VS |
4744 | int vco = valleyview_get_vco(dev_priv); |
4745 | int freq_320 = (vco << 1) % 320000 != 0 ? 333333 : 320000; | |
4746 | ||
d49a340d VS |
4747 | /* FIXME: Punit isn't quite ready yet */ |
4748 | if (IS_CHERRYVIEW(dev_priv->dev)) | |
4749 | return 400000; | |
4750 | ||
30a970c6 JB |
4751 | /* |
4752 | * Really only a few cases to deal with, as only 4 CDclks are supported: | |
4753 | * 200MHz | |
4754 | * 267MHz | |
29dc7ef3 | 4755 | * 320/333MHz (depends on HPLL freq) |
30a970c6 JB |
4756 | * 400MHz |
4757 | * So we check to see whether we're above 90% of the lower bin and | |
4758 | * adjust if needed. | |
e37c67a1 VS |
4759 | * |
4760 | * We seem to get an unstable or solid color picture at 200MHz. | |
4761 | * Not sure what's wrong. For now use 200MHz only when all pipes | |
4762 | * are off. | |
30a970c6 | 4763 | */ |
29dc7ef3 | 4764 | if (max_pixclk > freq_320*9/10) |
dfcab17e VS |
4765 | return 400000; |
4766 | else if (max_pixclk > 266667*9/10) | |
29dc7ef3 | 4767 | return freq_320; |
e37c67a1 | 4768 | else if (max_pixclk > 0) |
dfcab17e | 4769 | return 266667; |
e37c67a1 VS |
4770 | else |
4771 | return 200000; | |
30a970c6 JB |
4772 | } |
4773 | ||
2f2d7aa1 VS |
4774 | /* compute the max pixel clock for new configuration */ |
4775 | static int intel_mode_max_pixclk(struct drm_i915_private *dev_priv) | |
30a970c6 JB |
4776 | { |
4777 | struct drm_device *dev = dev_priv->dev; | |
4778 | struct intel_crtc *intel_crtc; | |
4779 | int max_pixclk = 0; | |
4780 | ||
d3fcc808 | 4781 | for_each_intel_crtc(dev, intel_crtc) { |
2f2d7aa1 | 4782 | if (intel_crtc->new_enabled) |
30a970c6 | 4783 | max_pixclk = max(max_pixclk, |
2f2d7aa1 | 4784 | intel_crtc->new_config->adjusted_mode.crtc_clock); |
30a970c6 JB |
4785 | } |
4786 | ||
4787 | return max_pixclk; | |
4788 | } | |
4789 | ||
4790 | static void valleyview_modeset_global_pipes(struct drm_device *dev, | |
2f2d7aa1 | 4791 | unsigned *prepare_pipes) |
30a970c6 JB |
4792 | { |
4793 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4794 | struct intel_crtc *intel_crtc; | |
2f2d7aa1 | 4795 | int max_pixclk = intel_mode_max_pixclk(dev_priv); |
30a970c6 | 4796 | |
d60c4473 ID |
4797 | if (valleyview_calc_cdclk(dev_priv, max_pixclk) == |
4798 | dev_priv->vlv_cdclk_freq) | |
30a970c6 JB |
4799 | return; |
4800 | ||
2f2d7aa1 | 4801 | /* disable/enable all currently active pipes while we change cdclk */ |
d3fcc808 | 4802 | for_each_intel_crtc(dev, intel_crtc) |
30a970c6 JB |
4803 | if (intel_crtc->base.enabled) |
4804 | *prepare_pipes |= (1 << intel_crtc->pipe); | |
4805 | } | |
4806 | ||
4807 | static void valleyview_modeset_global_resources(struct drm_device *dev) | |
4808 | { | |
4809 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2f2d7aa1 | 4810 | int max_pixclk = intel_mode_max_pixclk(dev_priv); |
30a970c6 JB |
4811 | int req_cdclk = valleyview_calc_cdclk(dev_priv, max_pixclk); |
4812 | ||
383c5a6a VS |
4813 | if (req_cdclk != dev_priv->vlv_cdclk_freq) { |
4814 | if (IS_CHERRYVIEW(dev)) | |
4815 | cherryview_set_cdclk(dev, req_cdclk); | |
4816 | else | |
4817 | valleyview_set_cdclk(dev, req_cdclk); | |
4818 | } | |
4819 | ||
77961eb9 | 4820 | modeset_update_crtc_power_domains(dev); |
30a970c6 JB |
4821 | } |
4822 | ||
89b667f8 JB |
4823 | static void valleyview_crtc_enable(struct drm_crtc *crtc) |
4824 | { | |
4825 | struct drm_device *dev = crtc->dev; | |
a72e4c9f | 4826 | struct drm_i915_private *dev_priv = to_i915(dev); |
89b667f8 JB |
4827 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4828 | struct intel_encoder *encoder; | |
4829 | int pipe = intel_crtc->pipe; | |
23538ef1 | 4830 | bool is_dsi; |
89b667f8 JB |
4831 | |
4832 | WARN_ON(!crtc->enabled); | |
4833 | ||
4834 | if (intel_crtc->active) | |
4835 | return; | |
4836 | ||
8525a235 SK |
4837 | is_dsi = intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI); |
4838 | ||
1ae0d137 VS |
4839 | if (!is_dsi) { |
4840 | if (IS_CHERRYVIEW(dev)) | |
4841 | chv_prepare_pll(intel_crtc); | |
4842 | else | |
4843 | vlv_prepare_pll(intel_crtc); | |
4844 | } | |
5b18e57c DV |
4845 | |
4846 | if (intel_crtc->config.has_dp_encoder) | |
4847 | intel_dp_set_m_n(intel_crtc); | |
4848 | ||
4849 | intel_set_pipe_timings(intel_crtc); | |
4850 | ||
5b18e57c DV |
4851 | i9xx_set_pipeconf(intel_crtc); |
4852 | ||
89b667f8 | 4853 | intel_crtc->active = true; |
89b667f8 | 4854 | |
a72e4c9f | 4855 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 4856 | |
89b667f8 JB |
4857 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4858 | if (encoder->pre_pll_enable) | |
4859 | encoder->pre_pll_enable(encoder); | |
4860 | ||
9d556c99 CML |
4861 | if (!is_dsi) { |
4862 | if (IS_CHERRYVIEW(dev)) | |
4863 | chv_enable_pll(intel_crtc); | |
4864 | else | |
4865 | vlv_enable_pll(intel_crtc); | |
4866 | } | |
89b667f8 JB |
4867 | |
4868 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
4869 | if (encoder->pre_enable) | |
4870 | encoder->pre_enable(encoder); | |
4871 | ||
2dd24552 JB |
4872 | i9xx_pfit_enable(intel_crtc); |
4873 | ||
63cbb074 VS |
4874 | intel_crtc_load_lut(crtc); |
4875 | ||
f37fcc2a | 4876 | intel_update_watermarks(crtc); |
e1fdc473 | 4877 | intel_enable_pipe(intel_crtc); |
be6a6f8e | 4878 | |
5004945f JN |
4879 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4880 | encoder->enable(encoder); | |
9ab0460b | 4881 | |
4b3a9526 VS |
4882 | assert_vblank_disabled(crtc); |
4883 | drm_crtc_vblank_on(crtc); | |
4884 | ||
9ab0460b | 4885 | intel_crtc_enable_planes(crtc); |
d40d9187 | 4886 | |
56b80e1f | 4887 | /* Underruns don't raise interrupts, so check manually. */ |
a72e4c9f | 4888 | i9xx_check_fifo_underruns(dev_priv); |
89b667f8 JB |
4889 | } |
4890 | ||
f13c2ef3 DV |
4891 | static void i9xx_set_pll_dividers(struct intel_crtc *crtc) |
4892 | { | |
4893 | struct drm_device *dev = crtc->base.dev; | |
4894 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4895 | ||
4896 | I915_WRITE(FP0(crtc->pipe), crtc->config.dpll_hw_state.fp0); | |
4897 | I915_WRITE(FP1(crtc->pipe), crtc->config.dpll_hw_state.fp1); | |
4898 | } | |
4899 | ||
0b8765c6 | 4900 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
4901 | { |
4902 | struct drm_device *dev = crtc->dev; | |
a72e4c9f | 4903 | struct drm_i915_private *dev_priv = to_i915(dev); |
79e53945 | 4904 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
ef9c3aee | 4905 | struct intel_encoder *encoder; |
79e53945 | 4906 | int pipe = intel_crtc->pipe; |
79e53945 | 4907 | |
08a48469 DV |
4908 | WARN_ON(!crtc->enabled); |
4909 | ||
f7abfe8b CW |
4910 | if (intel_crtc->active) |
4911 | return; | |
4912 | ||
f13c2ef3 DV |
4913 | i9xx_set_pll_dividers(intel_crtc); |
4914 | ||
5b18e57c DV |
4915 | if (intel_crtc->config.has_dp_encoder) |
4916 | intel_dp_set_m_n(intel_crtc); | |
4917 | ||
4918 | intel_set_pipe_timings(intel_crtc); | |
4919 | ||
5b18e57c DV |
4920 | i9xx_set_pipeconf(intel_crtc); |
4921 | ||
f7abfe8b | 4922 | intel_crtc->active = true; |
6b383a7f | 4923 | |
4a3436e8 | 4924 | if (!IS_GEN2(dev)) |
a72e4c9f | 4925 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 4926 | |
9d6d9f19 MK |
4927 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4928 | if (encoder->pre_enable) | |
4929 | encoder->pre_enable(encoder); | |
4930 | ||
f6736a1a DV |
4931 | i9xx_enable_pll(intel_crtc); |
4932 | ||
2dd24552 JB |
4933 | i9xx_pfit_enable(intel_crtc); |
4934 | ||
63cbb074 VS |
4935 | intel_crtc_load_lut(crtc); |
4936 | ||
f37fcc2a | 4937 | intel_update_watermarks(crtc); |
e1fdc473 | 4938 | intel_enable_pipe(intel_crtc); |
be6a6f8e | 4939 | |
fa5c73b1 DV |
4940 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4941 | encoder->enable(encoder); | |
9ab0460b | 4942 | |
4b3a9526 VS |
4943 | assert_vblank_disabled(crtc); |
4944 | drm_crtc_vblank_on(crtc); | |
4945 | ||
9ab0460b | 4946 | intel_crtc_enable_planes(crtc); |
d40d9187 | 4947 | |
4a3436e8 VS |
4948 | /* |
4949 | * Gen2 reports pipe underruns whenever all planes are disabled. | |
4950 | * So don't enable underrun reporting before at least some planes | |
4951 | * are enabled. | |
4952 | * FIXME: Need to fix the logic to work when we turn off all planes | |
4953 | * but leave the pipe running. | |
4954 | */ | |
4955 | if (IS_GEN2(dev)) | |
a72e4c9f | 4956 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 4957 | |
56b80e1f | 4958 | /* Underruns don't raise interrupts, so check manually. */ |
a72e4c9f | 4959 | i9xx_check_fifo_underruns(dev_priv); |
0b8765c6 | 4960 | } |
79e53945 | 4961 | |
87476d63 DV |
4962 | static void i9xx_pfit_disable(struct intel_crtc *crtc) |
4963 | { | |
4964 | struct drm_device *dev = crtc->base.dev; | |
4965 | struct drm_i915_private *dev_priv = dev->dev_private; | |
87476d63 | 4966 | |
328d8e82 DV |
4967 | if (!crtc->config.gmch_pfit.control) |
4968 | return; | |
87476d63 | 4969 | |
328d8e82 | 4970 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87476d63 | 4971 | |
328d8e82 DV |
4972 | DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n", |
4973 | I915_READ(PFIT_CONTROL)); | |
4974 | I915_WRITE(PFIT_CONTROL, 0); | |
87476d63 DV |
4975 | } |
4976 | ||
0b8765c6 JB |
4977 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
4978 | { | |
4979 | struct drm_device *dev = crtc->dev; | |
4980 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4981 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 4982 | struct intel_encoder *encoder; |
0b8765c6 | 4983 | int pipe = intel_crtc->pipe; |
ef9c3aee | 4984 | |
f7abfe8b CW |
4985 | if (!intel_crtc->active) |
4986 | return; | |
4987 | ||
4a3436e8 VS |
4988 | /* |
4989 | * Gen2 reports pipe underruns whenever all planes are disabled. | |
4990 | * So diasble underrun reporting before all the planes get disabled. | |
4991 | * FIXME: Need to fix the logic to work when we turn off all planes | |
4992 | * but leave the pipe running. | |
4993 | */ | |
4994 | if (IS_GEN2(dev)) | |
a72e4c9f | 4995 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); |
4a3436e8 | 4996 | |
564ed191 ID |
4997 | /* |
4998 | * Vblank time updates from the shadow to live plane control register | |
4999 | * are blocked if the memory self-refresh mode is active at that | |
5000 | * moment. So to make sure the plane gets truly disabled, disable | |
5001 | * first the self-refresh mode. The self-refresh enable bit in turn | |
5002 | * will be checked/applied by the HW only at the next frame start | |
5003 | * event which is after the vblank start event, so we need to have a | |
5004 | * wait-for-vblank between disabling the plane and the pipe. | |
5005 | */ | |
5006 | intel_set_memory_cxsr(dev_priv, false); | |
9ab0460b VS |
5007 | intel_crtc_disable_planes(crtc); |
5008 | ||
6304cd91 VS |
5009 | /* |
5010 | * On gen2 planes are double buffered but the pipe isn't, so we must | |
5011 | * wait for planes to fully turn off before disabling the pipe. | |
564ed191 ID |
5012 | * We also need to wait on all gmch platforms because of the |
5013 | * self-refresh mode constraint explained above. | |
6304cd91 | 5014 | */ |
564ed191 | 5015 | intel_wait_for_vblank(dev, pipe); |
6304cd91 | 5016 | |
4b3a9526 VS |
5017 | drm_crtc_vblank_off(crtc); |
5018 | assert_vblank_disabled(crtc); | |
5019 | ||
5020 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
5021 | encoder->disable(encoder); | |
5022 | ||
575f7ab7 | 5023 | intel_disable_pipe(intel_crtc); |
24a1f16d | 5024 | |
87476d63 | 5025 | i9xx_pfit_disable(intel_crtc); |
24a1f16d | 5026 | |
89b667f8 JB |
5027 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5028 | if (encoder->post_disable) | |
5029 | encoder->post_disable(encoder); | |
5030 | ||
076ed3b2 CML |
5031 | if (!intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI)) { |
5032 | if (IS_CHERRYVIEW(dev)) | |
5033 | chv_disable_pll(dev_priv, pipe); | |
5034 | else if (IS_VALLEYVIEW(dev)) | |
5035 | vlv_disable_pll(dev_priv, pipe); | |
5036 | else | |
1c4e0274 | 5037 | i9xx_disable_pll(intel_crtc); |
076ed3b2 | 5038 | } |
0b8765c6 | 5039 | |
4a3436e8 | 5040 | if (!IS_GEN2(dev)) |
a72e4c9f | 5041 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); |
4a3436e8 | 5042 | |
f7abfe8b | 5043 | intel_crtc->active = false; |
46ba614c | 5044 | intel_update_watermarks(crtc); |
f37fcc2a | 5045 | |
efa9624e | 5046 | mutex_lock(&dev->struct_mutex); |
6b383a7f | 5047 | intel_update_fbc(dev); |
efa9624e | 5048 | mutex_unlock(&dev->struct_mutex); |
0b8765c6 JB |
5049 | } |
5050 | ||
ee7b9f93 JB |
5051 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
5052 | { | |
5053 | } | |
5054 | ||
976f8a20 DV |
5055 | static void intel_crtc_update_sarea(struct drm_crtc *crtc, |
5056 | bool enabled) | |
2c07245f ZW |
5057 | { |
5058 | struct drm_device *dev = crtc->dev; | |
5059 | struct drm_i915_master_private *master_priv; | |
5060 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5061 | int pipe = intel_crtc->pipe; | |
79e53945 JB |
5062 | |
5063 | if (!dev->primary->master) | |
5064 | return; | |
5065 | ||
5066 | master_priv = dev->primary->master->driver_priv; | |
5067 | if (!master_priv->sarea_priv) | |
5068 | return; | |
5069 | ||
79e53945 JB |
5070 | switch (pipe) { |
5071 | case 0: | |
5072 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
5073 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
5074 | break; | |
5075 | case 1: | |
5076 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
5077 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
5078 | break; | |
5079 | default: | |
9db4a9c7 | 5080 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
79e53945 JB |
5081 | break; |
5082 | } | |
79e53945 JB |
5083 | } |
5084 | ||
b04c5bd6 BF |
5085 | /* Master function to enable/disable CRTC and corresponding power wells */ |
5086 | void intel_crtc_control(struct drm_crtc *crtc, bool enable) | |
976f8a20 DV |
5087 | { |
5088 | struct drm_device *dev = crtc->dev; | |
5089 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0e572fe7 | 5090 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
0e572fe7 DV |
5091 | enum intel_display_power_domain domain; |
5092 | unsigned long domains; | |
976f8a20 | 5093 | |
0e572fe7 DV |
5094 | if (enable) { |
5095 | if (!intel_crtc->active) { | |
e1e9fb84 DV |
5096 | domains = get_crtc_power_domains(crtc); |
5097 | for_each_power_domain(domain, domains) | |
5098 | intel_display_power_get(dev_priv, domain); | |
5099 | intel_crtc->enabled_power_domains = domains; | |
0e572fe7 DV |
5100 | |
5101 | dev_priv->display.crtc_enable(crtc); | |
5102 | } | |
5103 | } else { | |
5104 | if (intel_crtc->active) { | |
5105 | dev_priv->display.crtc_disable(crtc); | |
5106 | ||
e1e9fb84 DV |
5107 | domains = intel_crtc->enabled_power_domains; |
5108 | for_each_power_domain(domain, domains) | |
5109 | intel_display_power_put(dev_priv, domain); | |
5110 | intel_crtc->enabled_power_domains = 0; | |
0e572fe7 DV |
5111 | } |
5112 | } | |
b04c5bd6 BF |
5113 | } |
5114 | ||
5115 | /** | |
5116 | * Sets the power management mode of the pipe and plane. | |
5117 | */ | |
5118 | void intel_crtc_update_dpms(struct drm_crtc *crtc) | |
5119 | { | |
5120 | struct drm_device *dev = crtc->dev; | |
5121 | struct intel_encoder *intel_encoder; | |
5122 | bool enable = false; | |
5123 | ||
5124 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) | |
5125 | enable |= intel_encoder->connectors_active; | |
5126 | ||
5127 | intel_crtc_control(crtc, enable); | |
976f8a20 DV |
5128 | |
5129 | intel_crtc_update_sarea(crtc, enable); | |
5130 | } | |
5131 | ||
cdd59983 CW |
5132 | static void intel_crtc_disable(struct drm_crtc *crtc) |
5133 | { | |
cdd59983 | 5134 | struct drm_device *dev = crtc->dev; |
976f8a20 | 5135 | struct drm_connector *connector; |
ee7b9f93 | 5136 | struct drm_i915_private *dev_priv = dev->dev_private; |
2ff8fde1 | 5137 | struct drm_i915_gem_object *old_obj = intel_fb_obj(crtc->primary->fb); |
a071fa00 | 5138 | enum pipe pipe = to_intel_crtc(crtc)->pipe; |
cdd59983 | 5139 | |
976f8a20 DV |
5140 | /* crtc should still be enabled when we disable it. */ |
5141 | WARN_ON(!crtc->enabled); | |
5142 | ||
5143 | dev_priv->display.crtc_disable(crtc); | |
5144 | intel_crtc_update_sarea(crtc, false); | |
ee7b9f93 JB |
5145 | dev_priv->display.off(crtc); |
5146 | ||
f4510a27 | 5147 | if (crtc->primary->fb) { |
cdd59983 | 5148 | mutex_lock(&dev->struct_mutex); |
a071fa00 DV |
5149 | intel_unpin_fb_obj(old_obj); |
5150 | i915_gem_track_fb(old_obj, NULL, | |
5151 | INTEL_FRONTBUFFER_PRIMARY(pipe)); | |
cdd59983 | 5152 | mutex_unlock(&dev->struct_mutex); |
f4510a27 | 5153 | crtc->primary->fb = NULL; |
976f8a20 DV |
5154 | } |
5155 | ||
5156 | /* Update computed state. */ | |
5157 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
5158 | if (!connector->encoder || !connector->encoder->crtc) | |
5159 | continue; | |
5160 | ||
5161 | if (connector->encoder->crtc != crtc) | |
5162 | continue; | |
5163 | ||
5164 | connector->dpms = DRM_MODE_DPMS_OFF; | |
5165 | to_intel_encoder(connector->encoder)->connectors_active = false; | |
cdd59983 CW |
5166 | } |
5167 | } | |
5168 | ||
ea5b213a | 5169 | void intel_encoder_destroy(struct drm_encoder *encoder) |
7e7d76c3 | 5170 | { |
4ef69c7a | 5171 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 5172 | |
ea5b213a CW |
5173 | drm_encoder_cleanup(encoder); |
5174 | kfree(intel_encoder); | |
7e7d76c3 JB |
5175 | } |
5176 | ||
9237329d | 5177 | /* Simple dpms helper for encoders with just one connector, no cloning and only |
5ab432ef DV |
5178 | * one kind of off state. It clamps all !ON modes to fully OFF and changes the |
5179 | * state of the entire output pipe. */ | |
9237329d | 5180 | static void intel_encoder_dpms(struct intel_encoder *encoder, int mode) |
7e7d76c3 | 5181 | { |
5ab432ef DV |
5182 | if (mode == DRM_MODE_DPMS_ON) { |
5183 | encoder->connectors_active = true; | |
5184 | ||
b2cabb0e | 5185 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef DV |
5186 | } else { |
5187 | encoder->connectors_active = false; | |
5188 | ||
b2cabb0e | 5189 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef | 5190 | } |
79e53945 JB |
5191 | } |
5192 | ||
0a91ca29 DV |
5193 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
5194 | * internal consistency). */ | |
b980514c | 5195 | static void intel_connector_check_state(struct intel_connector *connector) |
79e53945 | 5196 | { |
0a91ca29 DV |
5197 | if (connector->get_hw_state(connector)) { |
5198 | struct intel_encoder *encoder = connector->encoder; | |
5199 | struct drm_crtc *crtc; | |
5200 | bool encoder_enabled; | |
5201 | enum pipe pipe; | |
5202 | ||
5203 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
5204 | connector->base.base.id, | |
c23cc417 | 5205 | connector->base.name); |
0a91ca29 | 5206 | |
0e32b39c DA |
5207 | /* there is no real hw state for MST connectors */ |
5208 | if (connector->mst_port) | |
5209 | return; | |
5210 | ||
0a91ca29 DV |
5211 | WARN(connector->base.dpms == DRM_MODE_DPMS_OFF, |
5212 | "wrong connector dpms state\n"); | |
5213 | WARN(connector->base.encoder != &encoder->base, | |
5214 | "active connector not linked to encoder\n"); | |
0a91ca29 | 5215 | |
36cd7444 DA |
5216 | if (encoder) { |
5217 | WARN(!encoder->connectors_active, | |
5218 | "encoder->connectors_active not set\n"); | |
5219 | ||
5220 | encoder_enabled = encoder->get_hw_state(encoder, &pipe); | |
5221 | WARN(!encoder_enabled, "encoder not enabled\n"); | |
5222 | if (WARN_ON(!encoder->base.crtc)) | |
5223 | return; | |
0a91ca29 | 5224 | |
36cd7444 | 5225 | crtc = encoder->base.crtc; |
0a91ca29 | 5226 | |
36cd7444 DA |
5227 | WARN(!crtc->enabled, "crtc not enabled\n"); |
5228 | WARN(!to_intel_crtc(crtc)->active, "crtc not active\n"); | |
5229 | WARN(pipe != to_intel_crtc(crtc)->pipe, | |
5230 | "encoder active on the wrong pipe\n"); | |
5231 | } | |
0a91ca29 | 5232 | } |
79e53945 JB |
5233 | } |
5234 | ||
5ab432ef DV |
5235 | /* Even simpler default implementation, if there's really no special case to |
5236 | * consider. */ | |
5237 | void intel_connector_dpms(struct drm_connector *connector, int mode) | |
79e53945 | 5238 | { |
5ab432ef DV |
5239 | /* All the simple cases only support two dpms states. */ |
5240 | if (mode != DRM_MODE_DPMS_ON) | |
5241 | mode = DRM_MODE_DPMS_OFF; | |
d4270e57 | 5242 | |
5ab432ef DV |
5243 | if (mode == connector->dpms) |
5244 | return; | |
5245 | ||
5246 | connector->dpms = mode; | |
5247 | ||
5248 | /* Only need to change hw state when actually enabled */ | |
c9976dcf CW |
5249 | if (connector->encoder) |
5250 | intel_encoder_dpms(to_intel_encoder(connector->encoder), mode); | |
0a91ca29 | 5251 | |
b980514c | 5252 | intel_modeset_check_state(connector->dev); |
79e53945 JB |
5253 | } |
5254 | ||
f0947c37 DV |
5255 | /* Simple connector->get_hw_state implementation for encoders that support only |
5256 | * one connector and no cloning and hence the encoder state determines the state | |
5257 | * of the connector. */ | |
5258 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
ea5b213a | 5259 | { |
24929352 | 5260 | enum pipe pipe = 0; |
f0947c37 | 5261 | struct intel_encoder *encoder = connector->encoder; |
ea5b213a | 5262 | |
f0947c37 | 5263 | return encoder->get_hw_state(encoder, &pipe); |
ea5b213a CW |
5264 | } |
5265 | ||
1857e1da DV |
5266 | static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe, |
5267 | struct intel_crtc_config *pipe_config) | |
5268 | { | |
5269 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5270 | struct intel_crtc *pipe_B_crtc = | |
5271 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]); | |
5272 | ||
5273 | DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n", | |
5274 | pipe_name(pipe), pipe_config->fdi_lanes); | |
5275 | if (pipe_config->fdi_lanes > 4) { | |
5276 | DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n", | |
5277 | pipe_name(pipe), pipe_config->fdi_lanes); | |
5278 | return false; | |
5279 | } | |
5280 | ||
bafb6553 | 5281 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
1857e1da DV |
5282 | if (pipe_config->fdi_lanes > 2) { |
5283 | DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n", | |
5284 | pipe_config->fdi_lanes); | |
5285 | return false; | |
5286 | } else { | |
5287 | return true; | |
5288 | } | |
5289 | } | |
5290 | ||
5291 | if (INTEL_INFO(dev)->num_pipes == 2) | |
5292 | return true; | |
5293 | ||
5294 | /* Ivybridge 3 pipe is really complicated */ | |
5295 | switch (pipe) { | |
5296 | case PIPE_A: | |
5297 | return true; | |
5298 | case PIPE_B: | |
5299 | if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled && | |
5300 | pipe_config->fdi_lanes > 2) { | |
5301 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n", | |
5302 | pipe_name(pipe), pipe_config->fdi_lanes); | |
5303 | return false; | |
5304 | } | |
5305 | return true; | |
5306 | case PIPE_C: | |
1e833f40 | 5307 | if (!pipe_has_enabled_pch(pipe_B_crtc) || |
1857e1da DV |
5308 | pipe_B_crtc->config.fdi_lanes <= 2) { |
5309 | if (pipe_config->fdi_lanes > 2) { | |
5310 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n", | |
5311 | pipe_name(pipe), pipe_config->fdi_lanes); | |
5312 | return false; | |
5313 | } | |
5314 | } else { | |
5315 | DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n"); | |
5316 | return false; | |
5317 | } | |
5318 | return true; | |
5319 | default: | |
5320 | BUG(); | |
5321 | } | |
5322 | } | |
5323 | ||
e29c22c0 DV |
5324 | #define RETRY 1 |
5325 | static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc, | |
5326 | struct intel_crtc_config *pipe_config) | |
877d48d5 | 5327 | { |
1857e1da | 5328 | struct drm_device *dev = intel_crtc->base.dev; |
877d48d5 | 5329 | struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; |
ff9a6750 | 5330 | int lane, link_bw, fdi_dotclock; |
e29c22c0 | 5331 | bool setup_ok, needs_recompute = false; |
877d48d5 | 5332 | |
e29c22c0 | 5333 | retry: |
877d48d5 DV |
5334 | /* FDI is a binary signal running at ~2.7GHz, encoding |
5335 | * each output octet as 10 bits. The actual frequency | |
5336 | * is stored as a divider into a 100MHz clock, and the | |
5337 | * mode pixel clock is stored in units of 1KHz. | |
5338 | * Hence the bw of each lane in terms of the mode signal | |
5339 | * is: | |
5340 | */ | |
5341 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
5342 | ||
241bfc38 | 5343 | fdi_dotclock = adjusted_mode->crtc_clock; |
877d48d5 | 5344 | |
2bd89a07 | 5345 | lane = ironlake_get_lanes_required(fdi_dotclock, link_bw, |
877d48d5 DV |
5346 | pipe_config->pipe_bpp); |
5347 | ||
5348 | pipe_config->fdi_lanes = lane; | |
5349 | ||
2bd89a07 | 5350 | intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock, |
877d48d5 | 5351 | link_bw, &pipe_config->fdi_m_n); |
1857e1da | 5352 | |
e29c22c0 DV |
5353 | setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev, |
5354 | intel_crtc->pipe, pipe_config); | |
5355 | if (!setup_ok && pipe_config->pipe_bpp > 6*3) { | |
5356 | pipe_config->pipe_bpp -= 2*3; | |
5357 | DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n", | |
5358 | pipe_config->pipe_bpp); | |
5359 | needs_recompute = true; | |
5360 | pipe_config->bw_constrained = true; | |
5361 | ||
5362 | goto retry; | |
5363 | } | |
5364 | ||
5365 | if (needs_recompute) | |
5366 | return RETRY; | |
5367 | ||
5368 | return setup_ok ? 0 : -EINVAL; | |
877d48d5 DV |
5369 | } |
5370 | ||
42db64ef PZ |
5371 | static void hsw_compute_ips_config(struct intel_crtc *crtc, |
5372 | struct intel_crtc_config *pipe_config) | |
5373 | { | |
d330a953 | 5374 | pipe_config->ips_enabled = i915.enable_ips && |
3c4ca58c | 5375 | hsw_crtc_supports_ips(crtc) && |
b6dfdc9b | 5376 | pipe_config->pipe_bpp <= 24; |
42db64ef PZ |
5377 | } |
5378 | ||
a43f6e0f | 5379 | static int intel_crtc_compute_config(struct intel_crtc *crtc, |
e29c22c0 | 5380 | struct intel_crtc_config *pipe_config) |
79e53945 | 5381 | { |
a43f6e0f | 5382 | struct drm_device *dev = crtc->base.dev; |
b8cecdf5 | 5383 | struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; |
89749350 | 5384 | |
ad3a4479 | 5385 | /* FIXME should check pixel clock limits on all platforms */ |
cf532bb2 VS |
5386 | if (INTEL_INFO(dev)->gen < 4) { |
5387 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5388 | int clock_limit = | |
5389 | dev_priv->display.get_display_clock_speed(dev); | |
5390 | ||
5391 | /* | |
5392 | * Enable pixel doubling when the dot clock | |
5393 | * is > 90% of the (display) core speed. | |
5394 | * | |
b397c96b VS |
5395 | * GDG double wide on either pipe, |
5396 | * otherwise pipe A only. | |
cf532bb2 | 5397 | */ |
b397c96b | 5398 | if ((crtc->pipe == PIPE_A || IS_I915G(dev)) && |
241bfc38 | 5399 | adjusted_mode->crtc_clock > clock_limit * 9 / 10) { |
ad3a4479 | 5400 | clock_limit *= 2; |
cf532bb2 | 5401 | pipe_config->double_wide = true; |
ad3a4479 VS |
5402 | } |
5403 | ||
241bfc38 | 5404 | if (adjusted_mode->crtc_clock > clock_limit * 9 / 10) |
e29c22c0 | 5405 | return -EINVAL; |
2c07245f | 5406 | } |
89749350 | 5407 | |
1d1d0e27 VS |
5408 | /* |
5409 | * Pipe horizontal size must be even in: | |
5410 | * - DVO ganged mode | |
5411 | * - LVDS dual channel mode | |
5412 | * - Double wide pipe | |
5413 | */ | |
5414 | if ((intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && | |
5415 | intel_is_dual_link_lvds(dev)) || pipe_config->double_wide) | |
5416 | pipe_config->pipe_src_w &= ~1; | |
5417 | ||
8693a824 DL |
5418 | /* Cantiga+ cannot handle modes with a hsync front porch of 0. |
5419 | * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw. | |
44f46b42 CW |
5420 | */ |
5421 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && | |
5422 | adjusted_mode->hsync_start == adjusted_mode->hdisplay) | |
e29c22c0 | 5423 | return -EINVAL; |
44f46b42 | 5424 | |
bd080ee5 | 5425 | if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) { |
5d2d38dd | 5426 | pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */ |
bd080ee5 | 5427 | } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) { |
5d2d38dd DV |
5428 | /* only a 8bpc pipe, with 6bpc dither through the panel fitter |
5429 | * for lvds. */ | |
5430 | pipe_config->pipe_bpp = 8*3; | |
5431 | } | |
5432 | ||
f5adf94e | 5433 | if (HAS_IPS(dev)) |
a43f6e0f DV |
5434 | hsw_compute_ips_config(crtc, pipe_config); |
5435 | ||
12030431 DV |
5436 | /* |
5437 | * XXX: PCH/WRPLL clock sharing is done in ->mode_set, so make sure the | |
5438 | * old clock survives for now. | |
5439 | */ | |
5440 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev) || HAS_DDI(dev)) | |
a43f6e0f | 5441 | pipe_config->shared_dpll = crtc->config.shared_dpll; |
42db64ef | 5442 | |
877d48d5 | 5443 | if (pipe_config->has_pch_encoder) |
a43f6e0f | 5444 | return ironlake_fdi_compute_config(crtc, pipe_config); |
877d48d5 | 5445 | |
e29c22c0 | 5446 | return 0; |
79e53945 JB |
5447 | } |
5448 | ||
25eb05fc JB |
5449 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
5450 | { | |
d197b7d3 VS |
5451 | struct drm_i915_private *dev_priv = dev->dev_private; |
5452 | int vco = valleyview_get_vco(dev_priv); | |
5453 | u32 val; | |
5454 | int divider; | |
5455 | ||
d49a340d VS |
5456 | /* FIXME: Punit isn't quite ready yet */ |
5457 | if (IS_CHERRYVIEW(dev)) | |
5458 | return 400000; | |
5459 | ||
d197b7d3 VS |
5460 | mutex_lock(&dev_priv->dpio_lock); |
5461 | val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL); | |
5462 | mutex_unlock(&dev_priv->dpio_lock); | |
5463 | ||
5464 | divider = val & DISPLAY_FREQUENCY_VALUES; | |
5465 | ||
7d007f40 VS |
5466 | WARN((val & DISPLAY_FREQUENCY_STATUS) != |
5467 | (divider << DISPLAY_FREQUENCY_STATUS_SHIFT), | |
5468 | "cdclk change in progress\n"); | |
5469 | ||
d197b7d3 | 5470 | return DIV_ROUND_CLOSEST(vco << 1, divider + 1); |
25eb05fc JB |
5471 | } |
5472 | ||
e70236a8 JB |
5473 | static int i945_get_display_clock_speed(struct drm_device *dev) |
5474 | { | |
5475 | return 400000; | |
5476 | } | |
79e53945 | 5477 | |
e70236a8 | 5478 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 5479 | { |
e70236a8 JB |
5480 | return 333000; |
5481 | } | |
79e53945 | 5482 | |
e70236a8 JB |
5483 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
5484 | { | |
5485 | return 200000; | |
5486 | } | |
79e53945 | 5487 | |
257a7ffc DV |
5488 | static int pnv_get_display_clock_speed(struct drm_device *dev) |
5489 | { | |
5490 | u16 gcfgc = 0; | |
5491 | ||
5492 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); | |
5493 | ||
5494 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
5495 | case GC_DISPLAY_CLOCK_267_MHZ_PNV: | |
5496 | return 267000; | |
5497 | case GC_DISPLAY_CLOCK_333_MHZ_PNV: | |
5498 | return 333000; | |
5499 | case GC_DISPLAY_CLOCK_444_MHZ_PNV: | |
5500 | return 444000; | |
5501 | case GC_DISPLAY_CLOCK_200_MHZ_PNV: | |
5502 | return 200000; | |
5503 | default: | |
5504 | DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc); | |
5505 | case GC_DISPLAY_CLOCK_133_MHZ_PNV: | |
5506 | return 133000; | |
5507 | case GC_DISPLAY_CLOCK_167_MHZ_PNV: | |
5508 | return 167000; | |
5509 | } | |
5510 | } | |
5511 | ||
e70236a8 JB |
5512 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
5513 | { | |
5514 | u16 gcfgc = 0; | |
79e53945 | 5515 | |
e70236a8 JB |
5516 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
5517 | ||
5518 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
5519 | return 133000; | |
5520 | else { | |
5521 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
5522 | case GC_DISPLAY_CLOCK_333_MHZ: | |
5523 | return 333000; | |
5524 | default: | |
5525 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
5526 | return 190000; | |
79e53945 | 5527 | } |
e70236a8 JB |
5528 | } |
5529 | } | |
5530 | ||
5531 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
5532 | { | |
5533 | return 266000; | |
5534 | } | |
5535 | ||
5536 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
5537 | { | |
5538 | u16 hpllcc = 0; | |
5539 | /* Assume that the hardware is in the high speed state. This | |
5540 | * should be the default. | |
5541 | */ | |
5542 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
5543 | case GC_CLOCK_133_200: | |
5544 | case GC_CLOCK_100_200: | |
5545 | return 200000; | |
5546 | case GC_CLOCK_166_250: | |
5547 | return 250000; | |
5548 | case GC_CLOCK_100_133: | |
79e53945 | 5549 | return 133000; |
e70236a8 | 5550 | } |
79e53945 | 5551 | |
e70236a8 JB |
5552 | /* Shouldn't happen */ |
5553 | return 0; | |
5554 | } | |
79e53945 | 5555 | |
e70236a8 JB |
5556 | static int i830_get_display_clock_speed(struct drm_device *dev) |
5557 | { | |
5558 | return 133000; | |
79e53945 JB |
5559 | } |
5560 | ||
2c07245f | 5561 | static void |
a65851af | 5562 | intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den) |
2c07245f | 5563 | { |
a65851af VS |
5564 | while (*num > DATA_LINK_M_N_MASK || |
5565 | *den > DATA_LINK_M_N_MASK) { | |
2c07245f ZW |
5566 | *num >>= 1; |
5567 | *den >>= 1; | |
5568 | } | |
5569 | } | |
5570 | ||
a65851af VS |
5571 | static void compute_m_n(unsigned int m, unsigned int n, |
5572 | uint32_t *ret_m, uint32_t *ret_n) | |
5573 | { | |
5574 | *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX); | |
5575 | *ret_m = div_u64((uint64_t) m * *ret_n, n); | |
5576 | intel_reduce_m_n_ratio(ret_m, ret_n); | |
5577 | } | |
5578 | ||
e69d0bc1 DV |
5579 | void |
5580 | intel_link_compute_m_n(int bits_per_pixel, int nlanes, | |
5581 | int pixel_clock, int link_clock, | |
5582 | struct intel_link_m_n *m_n) | |
2c07245f | 5583 | { |
e69d0bc1 | 5584 | m_n->tu = 64; |
a65851af VS |
5585 | |
5586 | compute_m_n(bits_per_pixel * pixel_clock, | |
5587 | link_clock * nlanes * 8, | |
5588 | &m_n->gmch_m, &m_n->gmch_n); | |
5589 | ||
5590 | compute_m_n(pixel_clock, link_clock, | |
5591 | &m_n->link_m, &m_n->link_n); | |
2c07245f ZW |
5592 | } |
5593 | ||
a7615030 CW |
5594 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
5595 | { | |
d330a953 JN |
5596 | if (i915.panel_use_ssc >= 0) |
5597 | return i915.panel_use_ssc != 0; | |
41aa3448 | 5598 | return dev_priv->vbt.lvds_use_ssc |
435793df | 5599 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
5600 | } |
5601 | ||
c65d77d8 JB |
5602 | static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors) |
5603 | { | |
5604 | struct drm_device *dev = crtc->dev; | |
5605 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5606 | int refclk; | |
5607 | ||
a0c4da24 | 5608 | if (IS_VALLEYVIEW(dev)) { |
9a0ea498 | 5609 | refclk = 100000; |
a0c4da24 | 5610 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
c65d77d8 | 5611 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
e91e941b VS |
5612 | refclk = dev_priv->vbt.lvds_ssc_freq; |
5613 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk); | |
c65d77d8 JB |
5614 | } else if (!IS_GEN2(dev)) { |
5615 | refclk = 96000; | |
5616 | } else { | |
5617 | refclk = 48000; | |
5618 | } | |
5619 | ||
5620 | return refclk; | |
5621 | } | |
5622 | ||
7429e9d4 | 5623 | static uint32_t pnv_dpll_compute_fp(struct dpll *dpll) |
c65d77d8 | 5624 | { |
7df00d7a | 5625 | return (1 << dpll->n) << 16 | dpll->m2; |
7429e9d4 | 5626 | } |
f47709a9 | 5627 | |
7429e9d4 DV |
5628 | static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll) |
5629 | { | |
5630 | return dpll->n << 16 | dpll->m1 << 8 | dpll->m2; | |
c65d77d8 JB |
5631 | } |
5632 | ||
f47709a9 | 5633 | static void i9xx_update_pll_dividers(struct intel_crtc *crtc, |
a7516a05 JB |
5634 | intel_clock_t *reduced_clock) |
5635 | { | |
f47709a9 | 5636 | struct drm_device *dev = crtc->base.dev; |
a7516a05 JB |
5637 | u32 fp, fp2 = 0; |
5638 | ||
5639 | if (IS_PINEVIEW(dev)) { | |
7429e9d4 | 5640 | fp = pnv_dpll_compute_fp(&crtc->config.dpll); |
a7516a05 | 5641 | if (reduced_clock) |
7429e9d4 | 5642 | fp2 = pnv_dpll_compute_fp(reduced_clock); |
a7516a05 | 5643 | } else { |
7429e9d4 | 5644 | fp = i9xx_dpll_compute_fp(&crtc->config.dpll); |
a7516a05 | 5645 | if (reduced_clock) |
7429e9d4 | 5646 | fp2 = i9xx_dpll_compute_fp(reduced_clock); |
a7516a05 JB |
5647 | } |
5648 | ||
8bcc2795 | 5649 | crtc->config.dpll_hw_state.fp0 = fp; |
a7516a05 | 5650 | |
f47709a9 DV |
5651 | crtc->lowfreq_avail = false; |
5652 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && | |
d330a953 | 5653 | reduced_clock && i915.powersave) { |
8bcc2795 | 5654 | crtc->config.dpll_hw_state.fp1 = fp2; |
f47709a9 | 5655 | crtc->lowfreq_avail = true; |
a7516a05 | 5656 | } else { |
8bcc2795 | 5657 | crtc->config.dpll_hw_state.fp1 = fp; |
a7516a05 JB |
5658 | } |
5659 | } | |
5660 | ||
5e69f97f CML |
5661 | static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe |
5662 | pipe) | |
89b667f8 JB |
5663 | { |
5664 | u32 reg_val; | |
5665 | ||
5666 | /* | |
5667 | * PLLB opamp always calibrates to max value of 0x3f, force enable it | |
5668 | * and set it to a reasonable value instead. | |
5669 | */ | |
ab3c759a | 5670 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1)); |
89b667f8 JB |
5671 | reg_val &= 0xffffff00; |
5672 | reg_val |= 0x00000030; | |
ab3c759a | 5673 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); |
89b667f8 | 5674 | |
ab3c759a | 5675 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); |
89b667f8 JB |
5676 | reg_val &= 0x8cffffff; |
5677 | reg_val = 0x8c000000; | |
ab3c759a | 5678 | vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); |
89b667f8 | 5679 | |
ab3c759a | 5680 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1)); |
89b667f8 | 5681 | reg_val &= 0xffffff00; |
ab3c759a | 5682 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); |
89b667f8 | 5683 | |
ab3c759a | 5684 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); |
89b667f8 JB |
5685 | reg_val &= 0x00ffffff; |
5686 | reg_val |= 0xb0000000; | |
ab3c759a | 5687 | vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); |
89b667f8 JB |
5688 | } |
5689 | ||
b551842d DV |
5690 | static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc, |
5691 | struct intel_link_m_n *m_n) | |
5692 | { | |
5693 | struct drm_device *dev = crtc->base.dev; | |
5694 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5695 | int pipe = crtc->pipe; | |
5696 | ||
e3b95f1e DV |
5697 | I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
5698 | I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n); | |
5699 | I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m); | |
5700 | I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n); | |
b551842d DV |
5701 | } |
5702 | ||
5703 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, | |
f769cd24 VK |
5704 | struct intel_link_m_n *m_n, |
5705 | struct intel_link_m_n *m2_n2) | |
b551842d DV |
5706 | { |
5707 | struct drm_device *dev = crtc->base.dev; | |
5708 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5709 | int pipe = crtc->pipe; | |
5710 | enum transcoder transcoder = crtc->config.cpu_transcoder; | |
5711 | ||
5712 | if (INTEL_INFO(dev)->gen >= 5) { | |
5713 | I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m); | |
5714 | I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n); | |
5715 | I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m); | |
5716 | I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n); | |
f769cd24 VK |
5717 | /* M2_N2 registers to be set only for gen < 8 (M2_N2 available |
5718 | * for gen < 8) and if DRRS is supported (to make sure the | |
5719 | * registers are not unnecessarily accessed). | |
5720 | */ | |
5721 | if (m2_n2 && INTEL_INFO(dev)->gen < 8 && | |
5722 | crtc->config.has_drrs) { | |
5723 | I915_WRITE(PIPE_DATA_M2(transcoder), | |
5724 | TU_SIZE(m2_n2->tu) | m2_n2->gmch_m); | |
5725 | I915_WRITE(PIPE_DATA_N2(transcoder), m2_n2->gmch_n); | |
5726 | I915_WRITE(PIPE_LINK_M2(transcoder), m2_n2->link_m); | |
5727 | I915_WRITE(PIPE_LINK_N2(transcoder), m2_n2->link_n); | |
5728 | } | |
b551842d | 5729 | } else { |
e3b95f1e DV |
5730 | I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
5731 | I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n); | |
5732 | I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m); | |
5733 | I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n); | |
b551842d DV |
5734 | } |
5735 | } | |
5736 | ||
f769cd24 | 5737 | void intel_dp_set_m_n(struct intel_crtc *crtc) |
03afc4a2 DV |
5738 | { |
5739 | if (crtc->config.has_pch_encoder) | |
5740 | intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n); | |
5741 | else | |
f769cd24 VK |
5742 | intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n, |
5743 | &crtc->config.dp_m2_n2); | |
03afc4a2 DV |
5744 | } |
5745 | ||
f47709a9 | 5746 | static void vlv_update_pll(struct intel_crtc *crtc) |
bdd4b6a6 DV |
5747 | { |
5748 | u32 dpll, dpll_md; | |
5749 | ||
5750 | /* | |
5751 | * Enable DPIO clock input. We should never disable the reference | |
5752 | * clock for pipe B, since VGA hotplug / manual detection depends | |
5753 | * on it. | |
5754 | */ | |
5755 | dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV | | |
5756 | DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV; | |
5757 | /* We should never disable this, set it here for state tracking */ | |
5758 | if (crtc->pipe == PIPE_B) | |
5759 | dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
5760 | dpll |= DPLL_VCO_ENABLE; | |
5761 | crtc->config.dpll_hw_state.dpll = dpll; | |
5762 | ||
5763 | dpll_md = (crtc->config.pixel_multiplier - 1) | |
5764 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
5765 | crtc->config.dpll_hw_state.dpll_md = dpll_md; | |
5766 | } | |
5767 | ||
5768 | static void vlv_prepare_pll(struct intel_crtc *crtc) | |
a0c4da24 | 5769 | { |
f47709a9 | 5770 | struct drm_device *dev = crtc->base.dev; |
a0c4da24 | 5771 | struct drm_i915_private *dev_priv = dev->dev_private; |
f47709a9 | 5772 | int pipe = crtc->pipe; |
bdd4b6a6 | 5773 | u32 mdiv; |
a0c4da24 | 5774 | u32 bestn, bestm1, bestm2, bestp1, bestp2; |
bdd4b6a6 | 5775 | u32 coreclk, reg_val; |
a0c4da24 | 5776 | |
09153000 DV |
5777 | mutex_lock(&dev_priv->dpio_lock); |
5778 | ||
f47709a9 DV |
5779 | bestn = crtc->config.dpll.n; |
5780 | bestm1 = crtc->config.dpll.m1; | |
5781 | bestm2 = crtc->config.dpll.m2; | |
5782 | bestp1 = crtc->config.dpll.p1; | |
5783 | bestp2 = crtc->config.dpll.p2; | |
a0c4da24 | 5784 | |
89b667f8 JB |
5785 | /* See eDP HDMI DPIO driver vbios notes doc */ |
5786 | ||
5787 | /* PLL B needs special handling */ | |
bdd4b6a6 | 5788 | if (pipe == PIPE_B) |
5e69f97f | 5789 | vlv_pllb_recal_opamp(dev_priv, pipe); |
89b667f8 JB |
5790 | |
5791 | /* Set up Tx target for periodic Rcomp update */ | |
ab3c759a | 5792 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f); |
89b667f8 JB |
5793 | |
5794 | /* Disable target IRef on PLL */ | |
ab3c759a | 5795 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe)); |
89b667f8 | 5796 | reg_val &= 0x00ffffff; |
ab3c759a | 5797 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val); |
89b667f8 JB |
5798 | |
5799 | /* Disable fast lock */ | |
ab3c759a | 5800 | vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610); |
89b667f8 JB |
5801 | |
5802 | /* Set idtafcrecal before PLL is enabled */ | |
a0c4da24 JB |
5803 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); |
5804 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
5805 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
a0c4da24 | 5806 | mdiv |= (1 << DPIO_K_SHIFT); |
7df5080b JB |
5807 | |
5808 | /* | |
5809 | * Post divider depends on pixel clock rate, DAC vs digital (and LVDS, | |
5810 | * but we don't support that). | |
5811 | * Note: don't use the DAC post divider as it seems unstable. | |
5812 | */ | |
5813 | mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT); | |
ab3c759a | 5814 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv); |
a0c4da24 | 5815 | |
a0c4da24 | 5816 | mdiv |= DPIO_ENABLE_CALIBRATION; |
ab3c759a | 5817 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv); |
a0c4da24 | 5818 | |
89b667f8 | 5819 | /* Set HBR and RBR LPF coefficients */ |
ff9a6750 | 5820 | if (crtc->config.port_clock == 162000 || |
99750bd4 | 5821 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_ANALOG) || |
89b667f8 | 5822 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI)) |
ab3c759a | 5823 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe), |
885b0120 | 5824 | 0x009f0003); |
89b667f8 | 5825 | else |
ab3c759a | 5826 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe), |
89b667f8 JB |
5827 | 0x00d0000f); |
5828 | ||
5829 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) || | |
5830 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) { | |
5831 | /* Use SSC source */ | |
bdd4b6a6 | 5832 | if (pipe == PIPE_A) |
ab3c759a | 5833 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
5834 | 0x0df40000); |
5835 | else | |
ab3c759a | 5836 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
5837 | 0x0df70000); |
5838 | } else { /* HDMI or VGA */ | |
5839 | /* Use bend source */ | |
bdd4b6a6 | 5840 | if (pipe == PIPE_A) |
ab3c759a | 5841 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
5842 | 0x0df70000); |
5843 | else | |
ab3c759a | 5844 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
5845 | 0x0df40000); |
5846 | } | |
a0c4da24 | 5847 | |
ab3c759a | 5848 | coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe)); |
89b667f8 JB |
5849 | coreclk = (coreclk & 0x0000ff00) | 0x01c00000; |
5850 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) || | |
5851 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP)) | |
5852 | coreclk |= 0x01000000; | |
ab3c759a | 5853 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk); |
a0c4da24 | 5854 | |
ab3c759a | 5855 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000); |
09153000 | 5856 | mutex_unlock(&dev_priv->dpio_lock); |
a0c4da24 JB |
5857 | } |
5858 | ||
9d556c99 | 5859 | static void chv_update_pll(struct intel_crtc *crtc) |
1ae0d137 VS |
5860 | { |
5861 | crtc->config.dpll_hw_state.dpll = DPLL_SSC_REF_CLOCK_CHV | | |
5862 | DPLL_REFA_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS | | |
5863 | DPLL_VCO_ENABLE; | |
5864 | if (crtc->pipe != PIPE_A) | |
5865 | crtc->config.dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
5866 | ||
5867 | crtc->config.dpll_hw_state.dpll_md = | |
5868 | (crtc->config.pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
5869 | } | |
5870 | ||
5871 | static void chv_prepare_pll(struct intel_crtc *crtc) | |
9d556c99 CML |
5872 | { |
5873 | struct drm_device *dev = crtc->base.dev; | |
5874 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5875 | int pipe = crtc->pipe; | |
5876 | int dpll_reg = DPLL(crtc->pipe); | |
5877 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
580d3811 | 5878 | u32 loopfilter, intcoeff; |
9d556c99 CML |
5879 | u32 bestn, bestm1, bestm2, bestp1, bestp2, bestm2_frac; |
5880 | int refclk; | |
5881 | ||
9d556c99 CML |
5882 | bestn = crtc->config.dpll.n; |
5883 | bestm2_frac = crtc->config.dpll.m2 & 0x3fffff; | |
5884 | bestm1 = crtc->config.dpll.m1; | |
5885 | bestm2 = crtc->config.dpll.m2 >> 22; | |
5886 | bestp1 = crtc->config.dpll.p1; | |
5887 | bestp2 = crtc->config.dpll.p2; | |
5888 | ||
5889 | /* | |
5890 | * Enable Refclk and SSC | |
5891 | */ | |
a11b0703 VS |
5892 | I915_WRITE(dpll_reg, |
5893 | crtc->config.dpll_hw_state.dpll & ~DPLL_VCO_ENABLE); | |
5894 | ||
5895 | mutex_lock(&dev_priv->dpio_lock); | |
9d556c99 | 5896 | |
9d556c99 CML |
5897 | /* p1 and p2 divider */ |
5898 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW13(port), | |
5899 | 5 << DPIO_CHV_S1_DIV_SHIFT | | |
5900 | bestp1 << DPIO_CHV_P1_DIV_SHIFT | | |
5901 | bestp2 << DPIO_CHV_P2_DIV_SHIFT | | |
5902 | 1 << DPIO_CHV_K_DIV_SHIFT); | |
5903 | ||
5904 | /* Feedback post-divider - m2 */ | |
5905 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW0(port), bestm2); | |
5906 | ||
5907 | /* Feedback refclk divider - n and m1 */ | |
5908 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW1(port), | |
5909 | DPIO_CHV_M1_DIV_BY_2 | | |
5910 | 1 << DPIO_CHV_N_DIV_SHIFT); | |
5911 | ||
5912 | /* M2 fraction division */ | |
5913 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW2(port), bestm2_frac); | |
5914 | ||
5915 | /* M2 fraction division enable */ | |
5916 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW3(port), | |
5917 | DPIO_CHV_FRAC_DIV_EN | | |
5918 | (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT)); | |
5919 | ||
5920 | /* Loop filter */ | |
5921 | refclk = i9xx_get_refclk(&crtc->base, 0); | |
5922 | loopfilter = 5 << DPIO_CHV_PROP_COEFF_SHIFT | | |
5923 | 2 << DPIO_CHV_GAIN_CTRL_SHIFT; | |
5924 | if (refclk == 100000) | |
5925 | intcoeff = 11; | |
5926 | else if (refclk == 38400) | |
5927 | intcoeff = 10; | |
5928 | else | |
5929 | intcoeff = 9; | |
5930 | loopfilter |= intcoeff << DPIO_CHV_INT_COEFF_SHIFT; | |
5931 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW6(port), loopfilter); | |
5932 | ||
5933 | /* AFC Recal */ | |
5934 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), | |
5935 | vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)) | | |
5936 | DPIO_AFC_RECAL); | |
5937 | ||
5938 | mutex_unlock(&dev_priv->dpio_lock); | |
5939 | } | |
5940 | ||
f47709a9 DV |
5941 | static void i9xx_update_pll(struct intel_crtc *crtc, |
5942 | intel_clock_t *reduced_clock, | |
eb1cbe48 DV |
5943 | int num_connectors) |
5944 | { | |
f47709a9 | 5945 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 5946 | struct drm_i915_private *dev_priv = dev->dev_private; |
eb1cbe48 DV |
5947 | u32 dpll; |
5948 | bool is_sdvo; | |
f47709a9 | 5949 | struct dpll *clock = &crtc->config.dpll; |
eb1cbe48 | 5950 | |
f47709a9 | 5951 | i9xx_update_pll_dividers(crtc, reduced_clock); |
2a8f64ca | 5952 | |
f47709a9 DV |
5953 | is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) || |
5954 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI); | |
eb1cbe48 DV |
5955 | |
5956 | dpll = DPLL_VGA_MODE_DIS; | |
5957 | ||
f47709a9 | 5958 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) |
eb1cbe48 DV |
5959 | dpll |= DPLLB_MODE_LVDS; |
5960 | else | |
5961 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
6cc5f341 | 5962 | |
ef1b460d | 5963 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
198a037f DV |
5964 | dpll |= (crtc->config.pixel_multiplier - 1) |
5965 | << SDVO_MULTIPLIER_SHIFT_HIRES; | |
eb1cbe48 | 5966 | } |
198a037f DV |
5967 | |
5968 | if (is_sdvo) | |
4a33e48d | 5969 | dpll |= DPLL_SDVO_HIGH_SPEED; |
198a037f | 5970 | |
f47709a9 | 5971 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) |
4a33e48d | 5972 | dpll |= DPLL_SDVO_HIGH_SPEED; |
eb1cbe48 DV |
5973 | |
5974 | /* compute bitmask from p1 value */ | |
5975 | if (IS_PINEVIEW(dev)) | |
5976 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
5977 | else { | |
5978 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
5979 | if (IS_G4X(dev) && reduced_clock) | |
5980 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
5981 | } | |
5982 | switch (clock->p2) { | |
5983 | case 5: | |
5984 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
5985 | break; | |
5986 | case 7: | |
5987 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
5988 | break; | |
5989 | case 10: | |
5990 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
5991 | break; | |
5992 | case 14: | |
5993 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
5994 | break; | |
5995 | } | |
5996 | if (INTEL_INFO(dev)->gen >= 4) | |
5997 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
5998 | ||
09ede541 | 5999 | if (crtc->config.sdvo_tv_clock) |
eb1cbe48 | 6000 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
f47709a9 | 6001 | else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
6002 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
6003 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
6004 | else | |
6005 | dpll |= PLL_REF_INPUT_DREFCLK; | |
6006 | ||
6007 | dpll |= DPLL_VCO_ENABLE; | |
8bcc2795 DV |
6008 | crtc->config.dpll_hw_state.dpll = dpll; |
6009 | ||
eb1cbe48 | 6010 | if (INTEL_INFO(dev)->gen >= 4) { |
ef1b460d DV |
6011 | u32 dpll_md = (crtc->config.pixel_multiplier - 1) |
6012 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
8bcc2795 | 6013 | crtc->config.dpll_hw_state.dpll_md = dpll_md; |
eb1cbe48 DV |
6014 | } |
6015 | } | |
6016 | ||
f47709a9 | 6017 | static void i8xx_update_pll(struct intel_crtc *crtc, |
f47709a9 | 6018 | intel_clock_t *reduced_clock, |
eb1cbe48 DV |
6019 | int num_connectors) |
6020 | { | |
f47709a9 | 6021 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 6022 | struct drm_i915_private *dev_priv = dev->dev_private; |
eb1cbe48 | 6023 | u32 dpll; |
f47709a9 | 6024 | struct dpll *clock = &crtc->config.dpll; |
eb1cbe48 | 6025 | |
f47709a9 | 6026 | i9xx_update_pll_dividers(crtc, reduced_clock); |
2a8f64ca | 6027 | |
eb1cbe48 DV |
6028 | dpll = DPLL_VGA_MODE_DIS; |
6029 | ||
f47709a9 | 6030 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) { |
eb1cbe48 DV |
6031 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
6032 | } else { | |
6033 | if (clock->p1 == 2) | |
6034 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
6035 | else | |
6036 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
6037 | if (clock->p2 == 4) | |
6038 | dpll |= PLL_P2_DIVIDE_BY_4; | |
6039 | } | |
6040 | ||
1c4e0274 | 6041 | if (!IS_I830(dev) && intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DVO)) |
4a33e48d DV |
6042 | dpll |= DPLL_DVO_2X_MODE; |
6043 | ||
f47709a9 | 6044 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
6045 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
6046 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
6047 | else | |
6048 | dpll |= PLL_REF_INPUT_DREFCLK; | |
6049 | ||
6050 | dpll |= DPLL_VCO_ENABLE; | |
8bcc2795 | 6051 | crtc->config.dpll_hw_state.dpll = dpll; |
eb1cbe48 DV |
6052 | } |
6053 | ||
8a654f3b | 6054 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc) |
b0e77b9c PZ |
6055 | { |
6056 | struct drm_device *dev = intel_crtc->base.dev; | |
6057 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6058 | enum pipe pipe = intel_crtc->pipe; | |
3b117c8f | 6059 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
8a654f3b DV |
6060 | struct drm_display_mode *adjusted_mode = |
6061 | &intel_crtc->config.adjusted_mode; | |
1caea6e9 VS |
6062 | uint32_t crtc_vtotal, crtc_vblank_end; |
6063 | int vsyncshift = 0; | |
4d8a62ea DV |
6064 | |
6065 | /* We need to be careful not to changed the adjusted mode, for otherwise | |
6066 | * the hw state checker will get angry at the mismatch. */ | |
6067 | crtc_vtotal = adjusted_mode->crtc_vtotal; | |
6068 | crtc_vblank_end = adjusted_mode->crtc_vblank_end; | |
b0e77b9c | 6069 | |
609aeaca | 6070 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
b0e77b9c | 6071 | /* the chip adds 2 halflines automatically */ |
4d8a62ea DV |
6072 | crtc_vtotal -= 1; |
6073 | crtc_vblank_end -= 1; | |
609aeaca VS |
6074 | |
6075 | if (intel_pipe_has_type(&intel_crtc->base, INTEL_OUTPUT_SDVO)) | |
6076 | vsyncshift = (adjusted_mode->crtc_htotal - 1) / 2; | |
6077 | else | |
6078 | vsyncshift = adjusted_mode->crtc_hsync_start - | |
6079 | adjusted_mode->crtc_htotal / 2; | |
1caea6e9 VS |
6080 | if (vsyncshift < 0) |
6081 | vsyncshift += adjusted_mode->crtc_htotal; | |
b0e77b9c PZ |
6082 | } |
6083 | ||
6084 | if (INTEL_INFO(dev)->gen > 3) | |
fe2b8f9d | 6085 | I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift); |
b0e77b9c | 6086 | |
fe2b8f9d | 6087 | I915_WRITE(HTOTAL(cpu_transcoder), |
b0e77b9c PZ |
6088 | (adjusted_mode->crtc_hdisplay - 1) | |
6089 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
fe2b8f9d | 6090 | I915_WRITE(HBLANK(cpu_transcoder), |
b0e77b9c PZ |
6091 | (adjusted_mode->crtc_hblank_start - 1) | |
6092 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
fe2b8f9d | 6093 | I915_WRITE(HSYNC(cpu_transcoder), |
b0e77b9c PZ |
6094 | (adjusted_mode->crtc_hsync_start - 1) | |
6095 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
6096 | ||
fe2b8f9d | 6097 | I915_WRITE(VTOTAL(cpu_transcoder), |
b0e77b9c | 6098 | (adjusted_mode->crtc_vdisplay - 1) | |
4d8a62ea | 6099 | ((crtc_vtotal - 1) << 16)); |
fe2b8f9d | 6100 | I915_WRITE(VBLANK(cpu_transcoder), |
b0e77b9c | 6101 | (adjusted_mode->crtc_vblank_start - 1) | |
4d8a62ea | 6102 | ((crtc_vblank_end - 1) << 16)); |
fe2b8f9d | 6103 | I915_WRITE(VSYNC(cpu_transcoder), |
b0e77b9c PZ |
6104 | (adjusted_mode->crtc_vsync_start - 1) | |
6105 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
6106 | ||
b5e508d4 PZ |
6107 | /* Workaround: when the EDP input selection is B, the VTOTAL_B must be |
6108 | * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is | |
6109 | * documented on the DDI_FUNC_CTL register description, EDP Input Select | |
6110 | * bits. */ | |
6111 | if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP && | |
6112 | (pipe == PIPE_B || pipe == PIPE_C)) | |
6113 | I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder))); | |
6114 | ||
b0e77b9c PZ |
6115 | /* pipesrc controls the size that is scaled from, which should |
6116 | * always be the user's requested size. | |
6117 | */ | |
6118 | I915_WRITE(PIPESRC(pipe), | |
37327abd VS |
6119 | ((intel_crtc->config.pipe_src_w - 1) << 16) | |
6120 | (intel_crtc->config.pipe_src_h - 1)); | |
b0e77b9c PZ |
6121 | } |
6122 | ||
1bd1bd80 DV |
6123 | static void intel_get_pipe_timings(struct intel_crtc *crtc, |
6124 | struct intel_crtc_config *pipe_config) | |
6125 | { | |
6126 | struct drm_device *dev = crtc->base.dev; | |
6127 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6128 | enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; | |
6129 | uint32_t tmp; | |
6130 | ||
6131 | tmp = I915_READ(HTOTAL(cpu_transcoder)); | |
6132 | pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1; | |
6133 | pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1; | |
6134 | tmp = I915_READ(HBLANK(cpu_transcoder)); | |
6135 | pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1; | |
6136 | pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1; | |
6137 | tmp = I915_READ(HSYNC(cpu_transcoder)); | |
6138 | pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1; | |
6139 | pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1; | |
6140 | ||
6141 | tmp = I915_READ(VTOTAL(cpu_transcoder)); | |
6142 | pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1; | |
6143 | pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1; | |
6144 | tmp = I915_READ(VBLANK(cpu_transcoder)); | |
6145 | pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1; | |
6146 | pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1; | |
6147 | tmp = I915_READ(VSYNC(cpu_transcoder)); | |
6148 | pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1; | |
6149 | pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1; | |
6150 | ||
6151 | if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) { | |
6152 | pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE; | |
6153 | pipe_config->adjusted_mode.crtc_vtotal += 1; | |
6154 | pipe_config->adjusted_mode.crtc_vblank_end += 1; | |
6155 | } | |
6156 | ||
6157 | tmp = I915_READ(PIPESRC(crtc->pipe)); | |
37327abd VS |
6158 | pipe_config->pipe_src_h = (tmp & 0xffff) + 1; |
6159 | pipe_config->pipe_src_w = ((tmp >> 16) & 0xffff) + 1; | |
6160 | ||
6161 | pipe_config->requested_mode.vdisplay = pipe_config->pipe_src_h; | |
6162 | pipe_config->requested_mode.hdisplay = pipe_config->pipe_src_w; | |
1bd1bd80 DV |
6163 | } |
6164 | ||
f6a83288 DV |
6165 | void intel_mode_from_pipe_config(struct drm_display_mode *mode, |
6166 | struct intel_crtc_config *pipe_config) | |
babea61d | 6167 | { |
f6a83288 DV |
6168 | mode->hdisplay = pipe_config->adjusted_mode.crtc_hdisplay; |
6169 | mode->htotal = pipe_config->adjusted_mode.crtc_htotal; | |
6170 | mode->hsync_start = pipe_config->adjusted_mode.crtc_hsync_start; | |
6171 | mode->hsync_end = pipe_config->adjusted_mode.crtc_hsync_end; | |
babea61d | 6172 | |
f6a83288 DV |
6173 | mode->vdisplay = pipe_config->adjusted_mode.crtc_vdisplay; |
6174 | mode->vtotal = pipe_config->adjusted_mode.crtc_vtotal; | |
6175 | mode->vsync_start = pipe_config->adjusted_mode.crtc_vsync_start; | |
6176 | mode->vsync_end = pipe_config->adjusted_mode.crtc_vsync_end; | |
babea61d | 6177 | |
f6a83288 | 6178 | mode->flags = pipe_config->adjusted_mode.flags; |
babea61d | 6179 | |
f6a83288 DV |
6180 | mode->clock = pipe_config->adjusted_mode.crtc_clock; |
6181 | mode->flags |= pipe_config->adjusted_mode.flags; | |
babea61d JB |
6182 | } |
6183 | ||
84b046f3 DV |
6184 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc) |
6185 | { | |
6186 | struct drm_device *dev = intel_crtc->base.dev; | |
6187 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6188 | uint32_t pipeconf; | |
6189 | ||
9f11a9e4 | 6190 | pipeconf = 0; |
84b046f3 | 6191 | |
b6b5d049 VS |
6192 | if ((intel_crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
6193 | (intel_crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
6194 | pipeconf |= I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE; | |
67c72a12 | 6195 | |
cf532bb2 VS |
6196 | if (intel_crtc->config.double_wide) |
6197 | pipeconf |= PIPECONF_DOUBLE_WIDE; | |
84b046f3 | 6198 | |
ff9ce46e DV |
6199 | /* only g4x and later have fancy bpc/dither controls */ |
6200 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) { | |
ff9ce46e DV |
6201 | /* Bspec claims that we can't use dithering for 30bpp pipes. */ |
6202 | if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30) | |
6203 | pipeconf |= PIPECONF_DITHER_EN | | |
84b046f3 | 6204 | PIPECONF_DITHER_TYPE_SP; |
84b046f3 | 6205 | |
ff9ce46e DV |
6206 | switch (intel_crtc->config.pipe_bpp) { |
6207 | case 18: | |
6208 | pipeconf |= PIPECONF_6BPC; | |
6209 | break; | |
6210 | case 24: | |
6211 | pipeconf |= PIPECONF_8BPC; | |
6212 | break; | |
6213 | case 30: | |
6214 | pipeconf |= PIPECONF_10BPC; | |
6215 | break; | |
6216 | default: | |
6217 | /* Case prevented by intel_choose_pipe_bpp_dither. */ | |
6218 | BUG(); | |
84b046f3 DV |
6219 | } |
6220 | } | |
6221 | ||
6222 | if (HAS_PIPE_CXSR(dev)) { | |
6223 | if (intel_crtc->lowfreq_avail) { | |
6224 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); | |
6225 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; | |
6226 | } else { | |
6227 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); | |
84b046f3 DV |
6228 | } |
6229 | } | |
6230 | ||
efc2cfff VS |
6231 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) { |
6232 | if (INTEL_INFO(dev)->gen < 4 || | |
6233 | intel_pipe_has_type(&intel_crtc->base, INTEL_OUTPUT_SDVO)) | |
6234 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; | |
6235 | else | |
6236 | pipeconf |= PIPECONF_INTERLACE_W_SYNC_SHIFT; | |
6237 | } else | |
84b046f3 DV |
6238 | pipeconf |= PIPECONF_PROGRESSIVE; |
6239 | ||
9f11a9e4 DV |
6240 | if (IS_VALLEYVIEW(dev) && intel_crtc->config.limited_color_range) |
6241 | pipeconf |= PIPECONF_COLOR_RANGE_SELECT; | |
9c8e09b7 | 6242 | |
84b046f3 DV |
6243 | I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf); |
6244 | POSTING_READ(PIPECONF(intel_crtc->pipe)); | |
6245 | } | |
6246 | ||
f564048e | 6247 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
f564048e | 6248 | int x, int y, |
94352cf9 | 6249 | struct drm_framebuffer *fb) |
79e53945 JB |
6250 | { |
6251 | struct drm_device *dev = crtc->dev; | |
6252 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6253 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
c751ce4f | 6254 | int refclk, num_connectors = 0; |
652c393a | 6255 | intel_clock_t clock, reduced_clock; |
a16af721 | 6256 | bool ok, has_reduced_clock = false; |
e9fd1c02 | 6257 | bool is_lvds = false, is_dsi = false; |
5eddb70b | 6258 | struct intel_encoder *encoder; |
d4906093 | 6259 | const intel_limit_t *limit; |
79e53945 | 6260 | |
6c2b7c12 | 6261 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5eddb70b | 6262 | switch (encoder->type) { |
79e53945 JB |
6263 | case INTEL_OUTPUT_LVDS: |
6264 | is_lvds = true; | |
6265 | break; | |
e9fd1c02 JN |
6266 | case INTEL_OUTPUT_DSI: |
6267 | is_dsi = true; | |
6268 | break; | |
79e53945 | 6269 | } |
43565a06 | 6270 | |
c751ce4f | 6271 | num_connectors++; |
79e53945 JB |
6272 | } |
6273 | ||
f2335330 | 6274 | if (is_dsi) |
5b18e57c | 6275 | return 0; |
f2335330 JN |
6276 | |
6277 | if (!intel_crtc->config.clock_set) { | |
6278 | refclk = i9xx_get_refclk(crtc, num_connectors); | |
79e53945 | 6279 | |
e9fd1c02 JN |
6280 | /* |
6281 | * Returns a set of divisors for the desired target clock with | |
6282 | * the given refclk, or FALSE. The returned values represent | |
6283 | * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + | |
6284 | * 2) / p1 / p2. | |
6285 | */ | |
6286 | limit = intel_limit(crtc, refclk); | |
a919ff14 | 6287 | ok = dev_priv->display.find_dpll(limit, intel_crtc, |
e9fd1c02 JN |
6288 | intel_crtc->config.port_clock, |
6289 | refclk, NULL, &clock); | |
f2335330 | 6290 | if (!ok) { |
e9fd1c02 JN |
6291 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
6292 | return -EINVAL; | |
6293 | } | |
79e53945 | 6294 | |
f2335330 JN |
6295 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
6296 | /* | |
6297 | * Ensure we match the reduced clock's P to the target | |
6298 | * clock. If the clocks don't match, we can't switch | |
6299 | * the display clock by using the FP0/FP1. In such case | |
6300 | * we will disable the LVDS downclock feature. | |
6301 | */ | |
6302 | has_reduced_clock = | |
a919ff14 | 6303 | dev_priv->display.find_dpll(limit, intel_crtc, |
f2335330 JN |
6304 | dev_priv->lvds_downclock, |
6305 | refclk, &clock, | |
6306 | &reduced_clock); | |
6307 | } | |
6308 | /* Compat-code for transition, will disappear. */ | |
f47709a9 DV |
6309 | intel_crtc->config.dpll.n = clock.n; |
6310 | intel_crtc->config.dpll.m1 = clock.m1; | |
6311 | intel_crtc->config.dpll.m2 = clock.m2; | |
6312 | intel_crtc->config.dpll.p1 = clock.p1; | |
6313 | intel_crtc->config.dpll.p2 = clock.p2; | |
6314 | } | |
7026d4ac | 6315 | |
e9fd1c02 | 6316 | if (IS_GEN2(dev)) { |
8a654f3b | 6317 | i8xx_update_pll(intel_crtc, |
2a8f64ca VP |
6318 | has_reduced_clock ? &reduced_clock : NULL, |
6319 | num_connectors); | |
9d556c99 CML |
6320 | } else if (IS_CHERRYVIEW(dev)) { |
6321 | chv_update_pll(intel_crtc); | |
e9fd1c02 | 6322 | } else if (IS_VALLEYVIEW(dev)) { |
f2335330 | 6323 | vlv_update_pll(intel_crtc); |
e9fd1c02 | 6324 | } else { |
f47709a9 | 6325 | i9xx_update_pll(intel_crtc, |
eb1cbe48 | 6326 | has_reduced_clock ? &reduced_clock : NULL, |
eba905b2 | 6327 | num_connectors); |
e9fd1c02 | 6328 | } |
79e53945 | 6329 | |
c8f7a0db | 6330 | return 0; |
f564048e EA |
6331 | } |
6332 | ||
2fa2fe9a DV |
6333 | static void i9xx_get_pfit_config(struct intel_crtc *crtc, |
6334 | struct intel_crtc_config *pipe_config) | |
6335 | { | |
6336 | struct drm_device *dev = crtc->base.dev; | |
6337 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6338 | uint32_t tmp; | |
6339 | ||
dc9e7dec VS |
6340 | if (INTEL_INFO(dev)->gen <= 3 && (IS_I830(dev) || !IS_MOBILE(dev))) |
6341 | return; | |
6342 | ||
2fa2fe9a | 6343 | tmp = I915_READ(PFIT_CONTROL); |
06922821 DV |
6344 | if (!(tmp & PFIT_ENABLE)) |
6345 | return; | |
2fa2fe9a | 6346 | |
06922821 | 6347 | /* Check whether the pfit is attached to our pipe. */ |
2fa2fe9a DV |
6348 | if (INTEL_INFO(dev)->gen < 4) { |
6349 | if (crtc->pipe != PIPE_B) | |
6350 | return; | |
2fa2fe9a DV |
6351 | } else { |
6352 | if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT)) | |
6353 | return; | |
6354 | } | |
6355 | ||
06922821 | 6356 | pipe_config->gmch_pfit.control = tmp; |
2fa2fe9a DV |
6357 | pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS); |
6358 | if (INTEL_INFO(dev)->gen < 5) | |
6359 | pipe_config->gmch_pfit.lvds_border_bits = | |
6360 | I915_READ(LVDS) & LVDS_BORDER_ENABLE; | |
6361 | } | |
6362 | ||
acbec814 JB |
6363 | static void vlv_crtc_clock_get(struct intel_crtc *crtc, |
6364 | struct intel_crtc_config *pipe_config) | |
6365 | { | |
6366 | struct drm_device *dev = crtc->base.dev; | |
6367 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6368 | int pipe = pipe_config->cpu_transcoder; | |
6369 | intel_clock_t clock; | |
6370 | u32 mdiv; | |
662c6ecb | 6371 | int refclk = 100000; |
acbec814 | 6372 | |
f573de5a SK |
6373 | /* In case of MIPI DPLL will not even be used */ |
6374 | if (!(pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE)) | |
6375 | return; | |
6376 | ||
acbec814 | 6377 | mutex_lock(&dev_priv->dpio_lock); |
ab3c759a | 6378 | mdiv = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW3(pipe)); |
acbec814 JB |
6379 | mutex_unlock(&dev_priv->dpio_lock); |
6380 | ||
6381 | clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7; | |
6382 | clock.m2 = mdiv & DPIO_M2DIV_MASK; | |
6383 | clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf; | |
6384 | clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7; | |
6385 | clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f; | |
6386 | ||
f646628b | 6387 | vlv_clock(refclk, &clock); |
acbec814 | 6388 | |
f646628b VS |
6389 | /* clock.dot is the fast clock */ |
6390 | pipe_config->port_clock = clock.dot / 5; | |
acbec814 JB |
6391 | } |
6392 | ||
1ad292b5 JB |
6393 | static void i9xx_get_plane_config(struct intel_crtc *crtc, |
6394 | struct intel_plane_config *plane_config) | |
6395 | { | |
6396 | struct drm_device *dev = crtc->base.dev; | |
6397 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6398 | u32 val, base, offset; | |
6399 | int pipe = crtc->pipe, plane = crtc->plane; | |
6400 | int fourcc, pixel_format; | |
6401 | int aligned_height; | |
6402 | ||
66e514c1 DA |
6403 | crtc->base.primary->fb = kzalloc(sizeof(struct intel_framebuffer), GFP_KERNEL); |
6404 | if (!crtc->base.primary->fb) { | |
1ad292b5 JB |
6405 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
6406 | return; | |
6407 | } | |
6408 | ||
6409 | val = I915_READ(DSPCNTR(plane)); | |
6410 | ||
6411 | if (INTEL_INFO(dev)->gen >= 4) | |
6412 | if (val & DISPPLANE_TILED) | |
6413 | plane_config->tiled = true; | |
6414 | ||
6415 | pixel_format = val & DISPPLANE_PIXFORMAT_MASK; | |
6416 | fourcc = intel_format_to_fourcc(pixel_format); | |
66e514c1 DA |
6417 | crtc->base.primary->fb->pixel_format = fourcc; |
6418 | crtc->base.primary->fb->bits_per_pixel = | |
1ad292b5 JB |
6419 | drm_format_plane_cpp(fourcc, 0) * 8; |
6420 | ||
6421 | if (INTEL_INFO(dev)->gen >= 4) { | |
6422 | if (plane_config->tiled) | |
6423 | offset = I915_READ(DSPTILEOFF(plane)); | |
6424 | else | |
6425 | offset = I915_READ(DSPLINOFF(plane)); | |
6426 | base = I915_READ(DSPSURF(plane)) & 0xfffff000; | |
6427 | } else { | |
6428 | base = I915_READ(DSPADDR(plane)); | |
6429 | } | |
6430 | plane_config->base = base; | |
6431 | ||
6432 | val = I915_READ(PIPESRC(pipe)); | |
66e514c1 DA |
6433 | crtc->base.primary->fb->width = ((val >> 16) & 0xfff) + 1; |
6434 | crtc->base.primary->fb->height = ((val >> 0) & 0xfff) + 1; | |
1ad292b5 JB |
6435 | |
6436 | val = I915_READ(DSPSTRIDE(pipe)); | |
026b96e2 | 6437 | crtc->base.primary->fb->pitches[0] = val & 0xffffffc0; |
1ad292b5 | 6438 | |
66e514c1 | 6439 | aligned_height = intel_align_height(dev, crtc->base.primary->fb->height, |
1ad292b5 JB |
6440 | plane_config->tiled); |
6441 | ||
1267a26b FF |
6442 | plane_config->size = PAGE_ALIGN(crtc->base.primary->fb->pitches[0] * |
6443 | aligned_height); | |
1ad292b5 JB |
6444 | |
6445 | DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", | |
66e514c1 DA |
6446 | pipe, plane, crtc->base.primary->fb->width, |
6447 | crtc->base.primary->fb->height, | |
6448 | crtc->base.primary->fb->bits_per_pixel, base, | |
6449 | crtc->base.primary->fb->pitches[0], | |
1ad292b5 JB |
6450 | plane_config->size); |
6451 | ||
6452 | } | |
6453 | ||
70b23a98 VS |
6454 | static void chv_crtc_clock_get(struct intel_crtc *crtc, |
6455 | struct intel_crtc_config *pipe_config) | |
6456 | { | |
6457 | struct drm_device *dev = crtc->base.dev; | |
6458 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6459 | int pipe = pipe_config->cpu_transcoder; | |
6460 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
6461 | intel_clock_t clock; | |
6462 | u32 cmn_dw13, pll_dw0, pll_dw1, pll_dw2; | |
6463 | int refclk = 100000; | |
6464 | ||
6465 | mutex_lock(&dev_priv->dpio_lock); | |
6466 | cmn_dw13 = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW13(port)); | |
6467 | pll_dw0 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW0(port)); | |
6468 | pll_dw1 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW1(port)); | |
6469 | pll_dw2 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW2(port)); | |
6470 | mutex_unlock(&dev_priv->dpio_lock); | |
6471 | ||
6472 | clock.m1 = (pll_dw1 & 0x7) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0; | |
6473 | clock.m2 = ((pll_dw0 & 0xff) << 22) | (pll_dw2 & 0x3fffff); | |
6474 | clock.n = (pll_dw1 >> DPIO_CHV_N_DIV_SHIFT) & 0xf; | |
6475 | clock.p1 = (cmn_dw13 >> DPIO_CHV_P1_DIV_SHIFT) & 0x7; | |
6476 | clock.p2 = (cmn_dw13 >> DPIO_CHV_P2_DIV_SHIFT) & 0x1f; | |
6477 | ||
6478 | chv_clock(refclk, &clock); | |
6479 | ||
6480 | /* clock.dot is the fast clock */ | |
6481 | pipe_config->port_clock = clock.dot / 5; | |
6482 | } | |
6483 | ||
0e8ffe1b DV |
6484 | static bool i9xx_get_pipe_config(struct intel_crtc *crtc, |
6485 | struct intel_crtc_config *pipe_config) | |
6486 | { | |
6487 | struct drm_device *dev = crtc->base.dev; | |
6488 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6489 | uint32_t tmp; | |
6490 | ||
f458ebbc DV |
6491 | if (!intel_display_power_is_enabled(dev_priv, |
6492 | POWER_DOMAIN_PIPE(crtc->pipe))) | |
b5482bd0 ID |
6493 | return false; |
6494 | ||
e143a21c | 6495 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 | 6496 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
eccb140b | 6497 | |
0e8ffe1b DV |
6498 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
6499 | if (!(tmp & PIPECONF_ENABLE)) | |
6500 | return false; | |
6501 | ||
42571aef VS |
6502 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) { |
6503 | switch (tmp & PIPECONF_BPC_MASK) { | |
6504 | case PIPECONF_6BPC: | |
6505 | pipe_config->pipe_bpp = 18; | |
6506 | break; | |
6507 | case PIPECONF_8BPC: | |
6508 | pipe_config->pipe_bpp = 24; | |
6509 | break; | |
6510 | case PIPECONF_10BPC: | |
6511 | pipe_config->pipe_bpp = 30; | |
6512 | break; | |
6513 | default: | |
6514 | break; | |
6515 | } | |
6516 | } | |
6517 | ||
b5a9fa09 DV |
6518 | if (IS_VALLEYVIEW(dev) && (tmp & PIPECONF_COLOR_RANGE_SELECT)) |
6519 | pipe_config->limited_color_range = true; | |
6520 | ||
282740f7 VS |
6521 | if (INTEL_INFO(dev)->gen < 4) |
6522 | pipe_config->double_wide = tmp & PIPECONF_DOUBLE_WIDE; | |
6523 | ||
1bd1bd80 DV |
6524 | intel_get_pipe_timings(crtc, pipe_config); |
6525 | ||
2fa2fe9a DV |
6526 | i9xx_get_pfit_config(crtc, pipe_config); |
6527 | ||
6c49f241 DV |
6528 | if (INTEL_INFO(dev)->gen >= 4) { |
6529 | tmp = I915_READ(DPLL_MD(crtc->pipe)); | |
6530 | pipe_config->pixel_multiplier = | |
6531 | ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK) | |
6532 | >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1; | |
8bcc2795 | 6533 | pipe_config->dpll_hw_state.dpll_md = tmp; |
6c49f241 DV |
6534 | } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
6535 | tmp = I915_READ(DPLL(crtc->pipe)); | |
6536 | pipe_config->pixel_multiplier = | |
6537 | ((tmp & SDVO_MULTIPLIER_MASK) | |
6538 | >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1; | |
6539 | } else { | |
6540 | /* Note that on i915G/GM the pixel multiplier is in the sdvo | |
6541 | * port and will be fixed up in the encoder->get_config | |
6542 | * function. */ | |
6543 | pipe_config->pixel_multiplier = 1; | |
6544 | } | |
8bcc2795 DV |
6545 | pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe)); |
6546 | if (!IS_VALLEYVIEW(dev)) { | |
1c4e0274 VS |
6547 | /* |
6548 | * DPLL_DVO_2X_MODE must be enabled for both DPLLs | |
6549 | * on 830. Filter it out here so that we don't | |
6550 | * report errors due to that. | |
6551 | */ | |
6552 | if (IS_I830(dev)) | |
6553 | pipe_config->dpll_hw_state.dpll &= ~DPLL_DVO_2X_MODE; | |
6554 | ||
8bcc2795 DV |
6555 | pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe)); |
6556 | pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe)); | |
165e901c VS |
6557 | } else { |
6558 | /* Mask out read-only status bits. */ | |
6559 | pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV | | |
6560 | DPLL_PORTC_READY_MASK | | |
6561 | DPLL_PORTB_READY_MASK); | |
8bcc2795 | 6562 | } |
6c49f241 | 6563 | |
70b23a98 VS |
6564 | if (IS_CHERRYVIEW(dev)) |
6565 | chv_crtc_clock_get(crtc, pipe_config); | |
6566 | else if (IS_VALLEYVIEW(dev)) | |
acbec814 JB |
6567 | vlv_crtc_clock_get(crtc, pipe_config); |
6568 | else | |
6569 | i9xx_crtc_clock_get(crtc, pipe_config); | |
18442d08 | 6570 | |
0e8ffe1b DV |
6571 | return true; |
6572 | } | |
6573 | ||
dde86e2d | 6574 | static void ironlake_init_pch_refclk(struct drm_device *dev) |
13d83a67 JB |
6575 | { |
6576 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13d83a67 | 6577 | struct intel_encoder *encoder; |
74cfd7ac | 6578 | u32 val, final; |
13d83a67 | 6579 | bool has_lvds = false; |
199e5d79 | 6580 | bool has_cpu_edp = false; |
199e5d79 | 6581 | bool has_panel = false; |
99eb6a01 KP |
6582 | bool has_ck505 = false; |
6583 | bool can_ssc = false; | |
13d83a67 JB |
6584 | |
6585 | /* We need to take the global config into account */ | |
b2784e15 | 6586 | for_each_intel_encoder(dev, encoder) { |
199e5d79 KP |
6587 | switch (encoder->type) { |
6588 | case INTEL_OUTPUT_LVDS: | |
6589 | has_panel = true; | |
6590 | has_lvds = true; | |
6591 | break; | |
6592 | case INTEL_OUTPUT_EDP: | |
6593 | has_panel = true; | |
2de6905f | 6594 | if (enc_to_dig_port(&encoder->base)->port == PORT_A) |
199e5d79 KP |
6595 | has_cpu_edp = true; |
6596 | break; | |
13d83a67 JB |
6597 | } |
6598 | } | |
6599 | ||
99eb6a01 | 6600 | if (HAS_PCH_IBX(dev)) { |
41aa3448 | 6601 | has_ck505 = dev_priv->vbt.display_clock_mode; |
99eb6a01 KP |
6602 | can_ssc = has_ck505; |
6603 | } else { | |
6604 | has_ck505 = false; | |
6605 | can_ssc = true; | |
6606 | } | |
6607 | ||
2de6905f ID |
6608 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n", |
6609 | has_panel, has_lvds, has_ck505); | |
13d83a67 JB |
6610 | |
6611 | /* Ironlake: try to setup display ref clock before DPLL | |
6612 | * enabling. This is only under driver's control after | |
6613 | * PCH B stepping, previous chipset stepping should be | |
6614 | * ignoring this setting. | |
6615 | */ | |
74cfd7ac CW |
6616 | val = I915_READ(PCH_DREF_CONTROL); |
6617 | ||
6618 | /* As we must carefully and slowly disable/enable each source in turn, | |
6619 | * compute the final state we want first and check if we need to | |
6620 | * make any changes at all. | |
6621 | */ | |
6622 | final = val; | |
6623 | final &= ~DREF_NONSPREAD_SOURCE_MASK; | |
6624 | if (has_ck505) | |
6625 | final |= DREF_NONSPREAD_CK505_ENABLE; | |
6626 | else | |
6627 | final |= DREF_NONSPREAD_SOURCE_ENABLE; | |
6628 | ||
6629 | final &= ~DREF_SSC_SOURCE_MASK; | |
6630 | final &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
6631 | final &= ~DREF_SSC1_ENABLE; | |
6632 | ||
6633 | if (has_panel) { | |
6634 | final |= DREF_SSC_SOURCE_ENABLE; | |
6635 | ||
6636 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
6637 | final |= DREF_SSC1_ENABLE; | |
6638 | ||
6639 | if (has_cpu_edp) { | |
6640 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
6641 | final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; | |
6642 | else | |
6643 | final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
6644 | } else | |
6645 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
6646 | } else { | |
6647 | final |= DREF_SSC_SOURCE_DISABLE; | |
6648 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
6649 | } | |
6650 | ||
6651 | if (final == val) | |
6652 | return; | |
6653 | ||
13d83a67 | 6654 | /* Always enable nonspread source */ |
74cfd7ac | 6655 | val &= ~DREF_NONSPREAD_SOURCE_MASK; |
13d83a67 | 6656 | |
99eb6a01 | 6657 | if (has_ck505) |
74cfd7ac | 6658 | val |= DREF_NONSPREAD_CK505_ENABLE; |
99eb6a01 | 6659 | else |
74cfd7ac | 6660 | val |= DREF_NONSPREAD_SOURCE_ENABLE; |
13d83a67 | 6661 | |
199e5d79 | 6662 | if (has_panel) { |
74cfd7ac CW |
6663 | val &= ~DREF_SSC_SOURCE_MASK; |
6664 | val |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 6665 | |
199e5d79 | 6666 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 6667 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 6668 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
74cfd7ac | 6669 | val |= DREF_SSC1_ENABLE; |
e77166b5 | 6670 | } else |
74cfd7ac | 6671 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 KP |
6672 | |
6673 | /* Get SSC going before enabling the outputs */ | |
74cfd7ac | 6674 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
6675 | POSTING_READ(PCH_DREF_CONTROL); |
6676 | udelay(200); | |
6677 | ||
74cfd7ac | 6678 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
13d83a67 JB |
6679 | |
6680 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 6681 | if (has_cpu_edp) { |
99eb6a01 | 6682 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 6683 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
74cfd7ac | 6684 | val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
eba905b2 | 6685 | } else |
74cfd7ac | 6686 | val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; |
199e5d79 | 6687 | } else |
74cfd7ac | 6688 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 6689 | |
74cfd7ac | 6690 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
6691 | POSTING_READ(PCH_DREF_CONTROL); |
6692 | udelay(200); | |
6693 | } else { | |
6694 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
6695 | ||
74cfd7ac | 6696 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
199e5d79 KP |
6697 | |
6698 | /* Turn off CPU output */ | |
74cfd7ac | 6699 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 6700 | |
74cfd7ac | 6701 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
6702 | POSTING_READ(PCH_DREF_CONTROL); |
6703 | udelay(200); | |
6704 | ||
6705 | /* Turn off the SSC source */ | |
74cfd7ac CW |
6706 | val &= ~DREF_SSC_SOURCE_MASK; |
6707 | val |= DREF_SSC_SOURCE_DISABLE; | |
199e5d79 KP |
6708 | |
6709 | /* Turn off SSC1 */ | |
74cfd7ac | 6710 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 | 6711 | |
74cfd7ac | 6712 | I915_WRITE(PCH_DREF_CONTROL, val); |
13d83a67 JB |
6713 | POSTING_READ(PCH_DREF_CONTROL); |
6714 | udelay(200); | |
6715 | } | |
74cfd7ac CW |
6716 | |
6717 | BUG_ON(val != final); | |
13d83a67 JB |
6718 | } |
6719 | ||
f31f2d55 | 6720 | static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv) |
dde86e2d | 6721 | { |
f31f2d55 | 6722 | uint32_t tmp; |
dde86e2d | 6723 | |
0ff066a9 PZ |
6724 | tmp = I915_READ(SOUTH_CHICKEN2); |
6725 | tmp |= FDI_MPHY_IOSFSB_RESET_CTL; | |
6726 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
dde86e2d | 6727 | |
0ff066a9 PZ |
6728 | if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) & |
6729 | FDI_MPHY_IOSFSB_RESET_STATUS, 100)) | |
6730 | DRM_ERROR("FDI mPHY reset assert timeout\n"); | |
dde86e2d | 6731 | |
0ff066a9 PZ |
6732 | tmp = I915_READ(SOUTH_CHICKEN2); |
6733 | tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL; | |
6734 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
dde86e2d | 6735 | |
0ff066a9 PZ |
6736 | if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) & |
6737 | FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100)) | |
6738 | DRM_ERROR("FDI mPHY reset de-assert timeout\n"); | |
f31f2d55 PZ |
6739 | } |
6740 | ||
6741 | /* WaMPhyProgramming:hsw */ | |
6742 | static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv) | |
6743 | { | |
6744 | uint32_t tmp; | |
dde86e2d PZ |
6745 | |
6746 | tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY); | |
6747 | tmp &= ~(0xFF << 24); | |
6748 | tmp |= (0x12 << 24); | |
6749 | intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY); | |
6750 | ||
dde86e2d PZ |
6751 | tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY); |
6752 | tmp |= (1 << 11); | |
6753 | intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY); | |
6754 | ||
6755 | tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY); | |
6756 | tmp |= (1 << 11); | |
6757 | intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY); | |
6758 | ||
dde86e2d PZ |
6759 | tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY); |
6760 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
6761 | intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY); | |
6762 | ||
6763 | tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY); | |
6764 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
6765 | intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY); | |
6766 | ||
0ff066a9 PZ |
6767 | tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY); |
6768 | tmp &= ~(7 << 13); | |
6769 | tmp |= (5 << 13); | |
6770 | intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY); | |
dde86e2d | 6771 | |
0ff066a9 PZ |
6772 | tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY); |
6773 | tmp &= ~(7 << 13); | |
6774 | tmp |= (5 << 13); | |
6775 | intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY); | |
dde86e2d PZ |
6776 | |
6777 | tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY); | |
6778 | tmp &= ~0xFF; | |
6779 | tmp |= 0x1C; | |
6780 | intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY); | |
6781 | ||
6782 | tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY); | |
6783 | tmp &= ~0xFF; | |
6784 | tmp |= 0x1C; | |
6785 | intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY); | |
6786 | ||
6787 | tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY); | |
6788 | tmp &= ~(0xFF << 16); | |
6789 | tmp |= (0x1C << 16); | |
6790 | intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY); | |
6791 | ||
6792 | tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY); | |
6793 | tmp &= ~(0xFF << 16); | |
6794 | tmp |= (0x1C << 16); | |
6795 | intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY); | |
6796 | ||
0ff066a9 PZ |
6797 | tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY); |
6798 | tmp |= (1 << 27); | |
6799 | intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY); | |
dde86e2d | 6800 | |
0ff066a9 PZ |
6801 | tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY); |
6802 | tmp |= (1 << 27); | |
6803 | intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY); | |
dde86e2d | 6804 | |
0ff066a9 PZ |
6805 | tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY); |
6806 | tmp &= ~(0xF << 28); | |
6807 | tmp |= (4 << 28); | |
6808 | intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY); | |
dde86e2d | 6809 | |
0ff066a9 PZ |
6810 | tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY); |
6811 | tmp &= ~(0xF << 28); | |
6812 | tmp |= (4 << 28); | |
6813 | intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); | |
f31f2d55 PZ |
6814 | } |
6815 | ||
2fa86a1f PZ |
6816 | /* Implements 3 different sequences from BSpec chapter "Display iCLK |
6817 | * Programming" based on the parameters passed: | |
6818 | * - Sequence to enable CLKOUT_DP | |
6819 | * - Sequence to enable CLKOUT_DP without spread | |
6820 | * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O | |
6821 | */ | |
6822 | static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread, | |
6823 | bool with_fdi) | |
f31f2d55 PZ |
6824 | { |
6825 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa86a1f PZ |
6826 | uint32_t reg, tmp; |
6827 | ||
6828 | if (WARN(with_fdi && !with_spread, "FDI requires downspread\n")) | |
6829 | with_spread = true; | |
6830 | if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE && | |
6831 | with_fdi, "LP PCH doesn't have FDI\n")) | |
6832 | with_fdi = false; | |
f31f2d55 PZ |
6833 | |
6834 | mutex_lock(&dev_priv->dpio_lock); | |
6835 | ||
6836 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
6837 | tmp &= ~SBI_SSCCTL_DISABLE; | |
6838 | tmp |= SBI_SSCCTL_PATHALT; | |
6839 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
6840 | ||
6841 | udelay(24); | |
6842 | ||
2fa86a1f PZ |
6843 | if (with_spread) { |
6844 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
6845 | tmp &= ~SBI_SSCCTL_PATHALT; | |
6846 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
f31f2d55 | 6847 | |
2fa86a1f PZ |
6848 | if (with_fdi) { |
6849 | lpt_reset_fdi_mphy(dev_priv); | |
6850 | lpt_program_fdi_mphy(dev_priv); | |
6851 | } | |
6852 | } | |
dde86e2d | 6853 | |
2fa86a1f PZ |
6854 | reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ? |
6855 | SBI_GEN0 : SBI_DBUFF0; | |
6856 | tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK); | |
6857 | tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE; | |
6858 | intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK); | |
c00db246 DV |
6859 | |
6860 | mutex_unlock(&dev_priv->dpio_lock); | |
dde86e2d PZ |
6861 | } |
6862 | ||
47701c3b PZ |
6863 | /* Sequence to disable CLKOUT_DP */ |
6864 | static void lpt_disable_clkout_dp(struct drm_device *dev) | |
6865 | { | |
6866 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6867 | uint32_t reg, tmp; | |
6868 | ||
6869 | mutex_lock(&dev_priv->dpio_lock); | |
6870 | ||
6871 | reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ? | |
6872 | SBI_GEN0 : SBI_DBUFF0; | |
6873 | tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK); | |
6874 | tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE; | |
6875 | intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK); | |
6876 | ||
6877 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
6878 | if (!(tmp & SBI_SSCCTL_DISABLE)) { | |
6879 | if (!(tmp & SBI_SSCCTL_PATHALT)) { | |
6880 | tmp |= SBI_SSCCTL_PATHALT; | |
6881 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
6882 | udelay(32); | |
6883 | } | |
6884 | tmp |= SBI_SSCCTL_DISABLE; | |
6885 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
6886 | } | |
6887 | ||
6888 | mutex_unlock(&dev_priv->dpio_lock); | |
6889 | } | |
6890 | ||
bf8fa3d3 PZ |
6891 | static void lpt_init_pch_refclk(struct drm_device *dev) |
6892 | { | |
bf8fa3d3 PZ |
6893 | struct intel_encoder *encoder; |
6894 | bool has_vga = false; | |
6895 | ||
b2784e15 | 6896 | for_each_intel_encoder(dev, encoder) { |
bf8fa3d3 PZ |
6897 | switch (encoder->type) { |
6898 | case INTEL_OUTPUT_ANALOG: | |
6899 | has_vga = true; | |
6900 | break; | |
6901 | } | |
6902 | } | |
6903 | ||
47701c3b PZ |
6904 | if (has_vga) |
6905 | lpt_enable_clkout_dp(dev, true, true); | |
6906 | else | |
6907 | lpt_disable_clkout_dp(dev); | |
bf8fa3d3 PZ |
6908 | } |
6909 | ||
dde86e2d PZ |
6910 | /* |
6911 | * Initialize reference clocks when the driver loads | |
6912 | */ | |
6913 | void intel_init_pch_refclk(struct drm_device *dev) | |
6914 | { | |
6915 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
6916 | ironlake_init_pch_refclk(dev); | |
6917 | else if (HAS_PCH_LPT(dev)) | |
6918 | lpt_init_pch_refclk(dev); | |
6919 | } | |
6920 | ||
d9d444cb JB |
6921 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
6922 | { | |
6923 | struct drm_device *dev = crtc->dev; | |
6924 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6925 | struct intel_encoder *encoder; | |
d9d444cb JB |
6926 | int num_connectors = 0; |
6927 | bool is_lvds = false; | |
6928 | ||
6c2b7c12 | 6929 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
d9d444cb JB |
6930 | switch (encoder->type) { |
6931 | case INTEL_OUTPUT_LVDS: | |
6932 | is_lvds = true; | |
6933 | break; | |
d9d444cb JB |
6934 | } |
6935 | num_connectors++; | |
6936 | } | |
6937 | ||
6938 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
e91e941b | 6939 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", |
41aa3448 | 6940 | dev_priv->vbt.lvds_ssc_freq); |
e91e941b | 6941 | return dev_priv->vbt.lvds_ssc_freq; |
d9d444cb JB |
6942 | } |
6943 | ||
6944 | return 120000; | |
6945 | } | |
6946 | ||
6ff93609 | 6947 | static void ironlake_set_pipeconf(struct drm_crtc *crtc) |
79e53945 | 6948 | { |
c8203565 | 6949 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
79e53945 JB |
6950 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6951 | int pipe = intel_crtc->pipe; | |
c8203565 PZ |
6952 | uint32_t val; |
6953 | ||
78114071 | 6954 | val = 0; |
c8203565 | 6955 | |
965e0c48 | 6956 | switch (intel_crtc->config.pipe_bpp) { |
c8203565 | 6957 | case 18: |
dfd07d72 | 6958 | val |= PIPECONF_6BPC; |
c8203565 PZ |
6959 | break; |
6960 | case 24: | |
dfd07d72 | 6961 | val |= PIPECONF_8BPC; |
c8203565 PZ |
6962 | break; |
6963 | case 30: | |
dfd07d72 | 6964 | val |= PIPECONF_10BPC; |
c8203565 PZ |
6965 | break; |
6966 | case 36: | |
dfd07d72 | 6967 | val |= PIPECONF_12BPC; |
c8203565 PZ |
6968 | break; |
6969 | default: | |
cc769b62 PZ |
6970 | /* Case prevented by intel_choose_pipe_bpp_dither. */ |
6971 | BUG(); | |
c8203565 PZ |
6972 | } |
6973 | ||
d8b32247 | 6974 | if (intel_crtc->config.dither) |
c8203565 PZ |
6975 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
6976 | ||
6ff93609 | 6977 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
c8203565 PZ |
6978 | val |= PIPECONF_INTERLACED_ILK; |
6979 | else | |
6980 | val |= PIPECONF_PROGRESSIVE; | |
6981 | ||
50f3b016 | 6982 | if (intel_crtc->config.limited_color_range) |
3685a8f3 | 6983 | val |= PIPECONF_COLOR_RANGE_SELECT; |
3685a8f3 | 6984 | |
c8203565 PZ |
6985 | I915_WRITE(PIPECONF(pipe), val); |
6986 | POSTING_READ(PIPECONF(pipe)); | |
6987 | } | |
6988 | ||
86d3efce VS |
6989 | /* |
6990 | * Set up the pipe CSC unit. | |
6991 | * | |
6992 | * Currently only full range RGB to limited range RGB conversion | |
6993 | * is supported, but eventually this should handle various | |
6994 | * RGB<->YCbCr scenarios as well. | |
6995 | */ | |
50f3b016 | 6996 | static void intel_set_pipe_csc(struct drm_crtc *crtc) |
86d3efce VS |
6997 | { |
6998 | struct drm_device *dev = crtc->dev; | |
6999 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7000 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7001 | int pipe = intel_crtc->pipe; | |
7002 | uint16_t coeff = 0x7800; /* 1.0 */ | |
7003 | ||
7004 | /* | |
7005 | * TODO: Check what kind of values actually come out of the pipe | |
7006 | * with these coeff/postoff values and adjust to get the best | |
7007 | * accuracy. Perhaps we even need to take the bpc value into | |
7008 | * consideration. | |
7009 | */ | |
7010 | ||
50f3b016 | 7011 | if (intel_crtc->config.limited_color_range) |
86d3efce VS |
7012 | coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */ |
7013 | ||
7014 | /* | |
7015 | * GY/GU and RY/RU should be the other way around according | |
7016 | * to BSpec, but reality doesn't agree. Just set them up in | |
7017 | * a way that results in the correct picture. | |
7018 | */ | |
7019 | I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16); | |
7020 | I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0); | |
7021 | ||
7022 | I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff); | |
7023 | I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0); | |
7024 | ||
7025 | I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0); | |
7026 | I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16); | |
7027 | ||
7028 | I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0); | |
7029 | I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0); | |
7030 | I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0); | |
7031 | ||
7032 | if (INTEL_INFO(dev)->gen > 6) { | |
7033 | uint16_t postoff = 0; | |
7034 | ||
50f3b016 | 7035 | if (intel_crtc->config.limited_color_range) |
32cf0cb0 | 7036 | postoff = (16 * (1 << 12) / 255) & 0x1fff; |
86d3efce VS |
7037 | |
7038 | I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff); | |
7039 | I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff); | |
7040 | I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff); | |
7041 | ||
7042 | I915_WRITE(PIPE_CSC_MODE(pipe), 0); | |
7043 | } else { | |
7044 | uint32_t mode = CSC_MODE_YUV_TO_RGB; | |
7045 | ||
50f3b016 | 7046 | if (intel_crtc->config.limited_color_range) |
86d3efce VS |
7047 | mode |= CSC_BLACK_SCREEN_OFFSET; |
7048 | ||
7049 | I915_WRITE(PIPE_CSC_MODE(pipe), mode); | |
7050 | } | |
7051 | } | |
7052 | ||
6ff93609 | 7053 | static void haswell_set_pipeconf(struct drm_crtc *crtc) |
ee2b0b38 | 7054 | { |
756f85cf PZ |
7055 | struct drm_device *dev = crtc->dev; |
7056 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee2b0b38 | 7057 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
756f85cf | 7058 | enum pipe pipe = intel_crtc->pipe; |
3b117c8f | 7059 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
ee2b0b38 PZ |
7060 | uint32_t val; |
7061 | ||
3eff4faa | 7062 | val = 0; |
ee2b0b38 | 7063 | |
756f85cf | 7064 | if (IS_HASWELL(dev) && intel_crtc->config.dither) |
ee2b0b38 PZ |
7065 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
7066 | ||
6ff93609 | 7067 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
ee2b0b38 PZ |
7068 | val |= PIPECONF_INTERLACED_ILK; |
7069 | else | |
7070 | val |= PIPECONF_PROGRESSIVE; | |
7071 | ||
702e7a56 PZ |
7072 | I915_WRITE(PIPECONF(cpu_transcoder), val); |
7073 | POSTING_READ(PIPECONF(cpu_transcoder)); | |
3eff4faa DV |
7074 | |
7075 | I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT); | |
7076 | POSTING_READ(GAMMA_MODE(intel_crtc->pipe)); | |
756f85cf | 7077 | |
3cdf122c | 7078 | if (IS_BROADWELL(dev) || INTEL_INFO(dev)->gen >= 9) { |
756f85cf PZ |
7079 | val = 0; |
7080 | ||
7081 | switch (intel_crtc->config.pipe_bpp) { | |
7082 | case 18: | |
7083 | val |= PIPEMISC_DITHER_6_BPC; | |
7084 | break; | |
7085 | case 24: | |
7086 | val |= PIPEMISC_DITHER_8_BPC; | |
7087 | break; | |
7088 | case 30: | |
7089 | val |= PIPEMISC_DITHER_10_BPC; | |
7090 | break; | |
7091 | case 36: | |
7092 | val |= PIPEMISC_DITHER_12_BPC; | |
7093 | break; | |
7094 | default: | |
7095 | /* Case prevented by pipe_config_set_bpp. */ | |
7096 | BUG(); | |
7097 | } | |
7098 | ||
7099 | if (intel_crtc->config.dither) | |
7100 | val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP; | |
7101 | ||
7102 | I915_WRITE(PIPEMISC(pipe), val); | |
7103 | } | |
ee2b0b38 PZ |
7104 | } |
7105 | ||
6591c6e4 | 7106 | static bool ironlake_compute_clocks(struct drm_crtc *crtc, |
6591c6e4 PZ |
7107 | intel_clock_t *clock, |
7108 | bool *has_reduced_clock, | |
7109 | intel_clock_t *reduced_clock) | |
7110 | { | |
7111 | struct drm_device *dev = crtc->dev; | |
7112 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a919ff14 | 7113 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6591c6e4 | 7114 | int refclk; |
d4906093 | 7115 | const intel_limit_t *limit; |
a16af721 | 7116 | bool ret, is_lvds = false; |
79e53945 | 7117 | |
6e2cc096 | 7118 | is_lvds = intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS); |
79e53945 | 7119 | |
d9d444cb | 7120 | refclk = ironlake_get_refclk(crtc); |
79e53945 | 7121 | |
d4906093 ML |
7122 | /* |
7123 | * Returns a set of divisors for the desired target clock with the given | |
7124 | * refclk, or FALSE. The returned values represent the clock equation: | |
7125 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
7126 | */ | |
1b894b59 | 7127 | limit = intel_limit(crtc, refclk); |
a919ff14 ACO |
7128 | ret = dev_priv->display.find_dpll(limit, intel_crtc, |
7129 | intel_crtc->config.port_clock, | |
ee9300bb | 7130 | refclk, NULL, clock); |
6591c6e4 PZ |
7131 | if (!ret) |
7132 | return false; | |
cda4b7d3 | 7133 | |
ddc9003c | 7134 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
7135 | /* |
7136 | * Ensure we match the reduced clock's P to the target clock. | |
7137 | * If the clocks don't match, we can't switch the display clock | |
7138 | * by using the FP0/FP1. In such case we will disable the LVDS | |
7139 | * downclock feature. | |
7140 | */ | |
ee9300bb | 7141 | *has_reduced_clock = |
a919ff14 | 7142 | dev_priv->display.find_dpll(limit, intel_crtc, |
ee9300bb DV |
7143 | dev_priv->lvds_downclock, |
7144 | refclk, clock, | |
7145 | reduced_clock); | |
652c393a | 7146 | } |
61e9653f | 7147 | |
6591c6e4 PZ |
7148 | return true; |
7149 | } | |
7150 | ||
d4b1931c PZ |
7151 | int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp) |
7152 | { | |
7153 | /* | |
7154 | * Account for spread spectrum to avoid | |
7155 | * oversubscribing the link. Max center spread | |
7156 | * is 2.5%; use 5% for safety's sake. | |
7157 | */ | |
7158 | u32 bps = target_clock * bpp * 21 / 20; | |
619d4d04 | 7159 | return DIV_ROUND_UP(bps, link_bw * 8); |
d4b1931c PZ |
7160 | } |
7161 | ||
7429e9d4 | 7162 | static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor) |
6cf86a5e | 7163 | { |
7429e9d4 | 7164 | return i9xx_dpll_compute_m(dpll) < factor * dpll->n; |
f48d8f23 PZ |
7165 | } |
7166 | ||
de13a2e3 | 7167 | static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, |
7429e9d4 | 7168 | u32 *fp, |
9a7c7890 | 7169 | intel_clock_t *reduced_clock, u32 *fp2) |
79e53945 | 7170 | { |
de13a2e3 | 7171 | struct drm_crtc *crtc = &intel_crtc->base; |
79e53945 JB |
7172 | struct drm_device *dev = crtc->dev; |
7173 | struct drm_i915_private *dev_priv = dev->dev_private; | |
de13a2e3 PZ |
7174 | struct intel_encoder *intel_encoder; |
7175 | uint32_t dpll; | |
6cc5f341 | 7176 | int factor, num_connectors = 0; |
09ede541 | 7177 | bool is_lvds = false, is_sdvo = false; |
79e53945 | 7178 | |
de13a2e3 PZ |
7179 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
7180 | switch (intel_encoder->type) { | |
79e53945 JB |
7181 | case INTEL_OUTPUT_LVDS: |
7182 | is_lvds = true; | |
7183 | break; | |
7184 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 7185 | case INTEL_OUTPUT_HDMI: |
79e53945 | 7186 | is_sdvo = true; |
79e53945 | 7187 | break; |
79e53945 | 7188 | } |
43565a06 | 7189 | |
c751ce4f | 7190 | num_connectors++; |
79e53945 | 7191 | } |
79e53945 | 7192 | |
c1858123 | 7193 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
7194 | factor = 21; |
7195 | if (is_lvds) { | |
7196 | if ((intel_panel_use_ssc(dev_priv) && | |
e91e941b | 7197 | dev_priv->vbt.lvds_ssc_freq == 100000) || |
f0b44056 | 7198 | (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev))) |
8febb297 | 7199 | factor = 25; |
09ede541 | 7200 | } else if (intel_crtc->config.sdvo_tv_clock) |
8febb297 | 7201 | factor = 20; |
c1858123 | 7202 | |
7429e9d4 | 7203 | if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor)) |
7d0ac5b7 | 7204 | *fp |= FP_CB_TUNE; |
2c07245f | 7205 | |
9a7c7890 DV |
7206 | if (fp2 && (reduced_clock->m < factor * reduced_clock->n)) |
7207 | *fp2 |= FP_CB_TUNE; | |
7208 | ||
5eddb70b | 7209 | dpll = 0; |
2c07245f | 7210 | |
a07d6787 EA |
7211 | if (is_lvds) |
7212 | dpll |= DPLLB_MODE_LVDS; | |
7213 | else | |
7214 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
198a037f | 7215 | |
ef1b460d DV |
7216 | dpll |= (intel_crtc->config.pixel_multiplier - 1) |
7217 | << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
198a037f DV |
7218 | |
7219 | if (is_sdvo) | |
4a33e48d | 7220 | dpll |= DPLL_SDVO_HIGH_SPEED; |
9566e9af | 7221 | if (intel_crtc->config.has_dp_encoder) |
4a33e48d | 7222 | dpll |= DPLL_SDVO_HIGH_SPEED; |
79e53945 | 7223 | |
a07d6787 | 7224 | /* compute bitmask from p1 value */ |
7429e9d4 | 7225 | dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
a07d6787 | 7226 | /* also FPA1 */ |
7429e9d4 | 7227 | dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
a07d6787 | 7228 | |
7429e9d4 | 7229 | switch (intel_crtc->config.dpll.p2) { |
a07d6787 EA |
7230 | case 5: |
7231 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
7232 | break; | |
7233 | case 7: | |
7234 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
7235 | break; | |
7236 | case 10: | |
7237 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
7238 | break; | |
7239 | case 14: | |
7240 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
7241 | break; | |
79e53945 JB |
7242 | } |
7243 | ||
b4c09f3b | 7244 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 7245 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
7246 | else |
7247 | dpll |= PLL_REF_INPUT_DREFCLK; | |
7248 | ||
959e16d6 | 7249 | return dpll | DPLL_VCO_ENABLE; |
de13a2e3 PZ |
7250 | } |
7251 | ||
7252 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, | |
de13a2e3 PZ |
7253 | int x, int y, |
7254 | struct drm_framebuffer *fb) | |
7255 | { | |
7256 | struct drm_device *dev = crtc->dev; | |
de13a2e3 | 7257 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
de13a2e3 | 7258 | intel_clock_t clock, reduced_clock; |
cbbab5bd | 7259 | u32 dpll = 0, fp = 0, fp2 = 0; |
e2f12b07 | 7260 | bool ok, has_reduced_clock = false; |
8b47047b | 7261 | bool is_lvds = false; |
e2b78267 | 7262 | struct intel_shared_dpll *pll; |
de13a2e3 | 7263 | |
6e2cc096 | 7264 | is_lvds = intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS); |
79e53945 | 7265 | |
5dc5298b PZ |
7266 | WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)), |
7267 | "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev)); | |
a07d6787 | 7268 | |
ff9a6750 | 7269 | ok = ironlake_compute_clocks(crtc, &clock, |
de13a2e3 | 7270 | &has_reduced_clock, &reduced_clock); |
ee9300bb | 7271 | if (!ok && !intel_crtc->config.clock_set) { |
de13a2e3 PZ |
7272 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
7273 | return -EINVAL; | |
79e53945 | 7274 | } |
f47709a9 DV |
7275 | /* Compat-code for transition, will disappear. */ |
7276 | if (!intel_crtc->config.clock_set) { | |
7277 | intel_crtc->config.dpll.n = clock.n; | |
7278 | intel_crtc->config.dpll.m1 = clock.m1; | |
7279 | intel_crtc->config.dpll.m2 = clock.m2; | |
7280 | intel_crtc->config.dpll.p1 = clock.p1; | |
7281 | intel_crtc->config.dpll.p2 = clock.p2; | |
7282 | } | |
79e53945 | 7283 | |
5dc5298b | 7284 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ |
8b47047b | 7285 | if (intel_crtc->config.has_pch_encoder) { |
7429e9d4 | 7286 | fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll); |
cbbab5bd | 7287 | if (has_reduced_clock) |
7429e9d4 | 7288 | fp2 = i9xx_dpll_compute_fp(&reduced_clock); |
cbbab5bd | 7289 | |
7429e9d4 | 7290 | dpll = ironlake_compute_dpll(intel_crtc, |
cbbab5bd DV |
7291 | &fp, &reduced_clock, |
7292 | has_reduced_clock ? &fp2 : NULL); | |
7293 | ||
959e16d6 | 7294 | intel_crtc->config.dpll_hw_state.dpll = dpll; |
66e985c0 DV |
7295 | intel_crtc->config.dpll_hw_state.fp0 = fp; |
7296 | if (has_reduced_clock) | |
7297 | intel_crtc->config.dpll_hw_state.fp1 = fp2; | |
7298 | else | |
7299 | intel_crtc->config.dpll_hw_state.fp1 = fp; | |
7300 | ||
b89a1d39 | 7301 | pll = intel_get_shared_dpll(intel_crtc); |
ee7b9f93 | 7302 | if (pll == NULL) { |
84f44ce7 | 7303 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n", |
29407aab | 7304 | pipe_name(intel_crtc->pipe)); |
4b645f14 JB |
7305 | return -EINVAL; |
7306 | } | |
ee7b9f93 | 7307 | } else |
e72f9fbf | 7308 | intel_put_shared_dpll(intel_crtc); |
79e53945 | 7309 | |
d330a953 | 7310 | if (is_lvds && has_reduced_clock && i915.powersave) |
bcd644e0 DV |
7311 | intel_crtc->lowfreq_avail = true; |
7312 | else | |
7313 | intel_crtc->lowfreq_avail = false; | |
e2b78267 | 7314 | |
c8f7a0db | 7315 | return 0; |
79e53945 JB |
7316 | } |
7317 | ||
eb14cb74 VS |
7318 | static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc, |
7319 | struct intel_link_m_n *m_n) | |
7320 | { | |
7321 | struct drm_device *dev = crtc->base.dev; | |
7322 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7323 | enum pipe pipe = crtc->pipe; | |
7324 | ||
7325 | m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe)); | |
7326 | m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe)); | |
7327 | m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe)) | |
7328 | & ~TU_SIZE_MASK; | |
7329 | m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe)); | |
7330 | m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe)) | |
7331 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
7332 | } | |
7333 | ||
7334 | static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc, | |
7335 | enum transcoder transcoder, | |
b95af8be VK |
7336 | struct intel_link_m_n *m_n, |
7337 | struct intel_link_m_n *m2_n2) | |
72419203 DV |
7338 | { |
7339 | struct drm_device *dev = crtc->base.dev; | |
7340 | struct drm_i915_private *dev_priv = dev->dev_private; | |
eb14cb74 | 7341 | enum pipe pipe = crtc->pipe; |
72419203 | 7342 | |
eb14cb74 VS |
7343 | if (INTEL_INFO(dev)->gen >= 5) { |
7344 | m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder)); | |
7345 | m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder)); | |
7346 | m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder)) | |
7347 | & ~TU_SIZE_MASK; | |
7348 | m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder)); | |
7349 | m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder)) | |
7350 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
b95af8be VK |
7351 | /* Read M2_N2 registers only for gen < 8 (M2_N2 available for |
7352 | * gen < 8) and if DRRS is supported (to make sure the | |
7353 | * registers are not unnecessarily read). | |
7354 | */ | |
7355 | if (m2_n2 && INTEL_INFO(dev)->gen < 8 && | |
7356 | crtc->config.has_drrs) { | |
7357 | m2_n2->link_m = I915_READ(PIPE_LINK_M2(transcoder)); | |
7358 | m2_n2->link_n = I915_READ(PIPE_LINK_N2(transcoder)); | |
7359 | m2_n2->gmch_m = I915_READ(PIPE_DATA_M2(transcoder)) | |
7360 | & ~TU_SIZE_MASK; | |
7361 | m2_n2->gmch_n = I915_READ(PIPE_DATA_N2(transcoder)); | |
7362 | m2_n2->tu = ((I915_READ(PIPE_DATA_M2(transcoder)) | |
7363 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
7364 | } | |
eb14cb74 VS |
7365 | } else { |
7366 | m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe)); | |
7367 | m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe)); | |
7368 | m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe)) | |
7369 | & ~TU_SIZE_MASK; | |
7370 | m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe)); | |
7371 | m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe)) | |
7372 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
7373 | } | |
7374 | } | |
7375 | ||
7376 | void intel_dp_get_m_n(struct intel_crtc *crtc, | |
7377 | struct intel_crtc_config *pipe_config) | |
7378 | { | |
7379 | if (crtc->config.has_pch_encoder) | |
7380 | intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n); | |
7381 | else | |
7382 | intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, | |
b95af8be VK |
7383 | &pipe_config->dp_m_n, |
7384 | &pipe_config->dp_m2_n2); | |
eb14cb74 | 7385 | } |
72419203 | 7386 | |
eb14cb74 VS |
7387 | static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc, |
7388 | struct intel_crtc_config *pipe_config) | |
7389 | { | |
7390 | intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, | |
b95af8be | 7391 | &pipe_config->fdi_m_n, NULL); |
72419203 DV |
7392 | } |
7393 | ||
2fa2fe9a DV |
7394 | static void ironlake_get_pfit_config(struct intel_crtc *crtc, |
7395 | struct intel_crtc_config *pipe_config) | |
7396 | { | |
7397 | struct drm_device *dev = crtc->base.dev; | |
7398 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7399 | uint32_t tmp; | |
7400 | ||
7401 | tmp = I915_READ(PF_CTL(crtc->pipe)); | |
7402 | ||
7403 | if (tmp & PF_ENABLE) { | |
fd4daa9c | 7404 | pipe_config->pch_pfit.enabled = true; |
2fa2fe9a DV |
7405 | pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe)); |
7406 | pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe)); | |
cb8b2a30 DV |
7407 | |
7408 | /* We currently do not free assignements of panel fitters on | |
7409 | * ivb/hsw (since we don't use the higher upscaling modes which | |
7410 | * differentiates them) so just WARN about this case for now. */ | |
7411 | if (IS_GEN7(dev)) { | |
7412 | WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) != | |
7413 | PF_PIPE_SEL_IVB(crtc->pipe)); | |
7414 | } | |
2fa2fe9a | 7415 | } |
79e53945 JB |
7416 | } |
7417 | ||
4c6baa59 JB |
7418 | static void ironlake_get_plane_config(struct intel_crtc *crtc, |
7419 | struct intel_plane_config *plane_config) | |
7420 | { | |
7421 | struct drm_device *dev = crtc->base.dev; | |
7422 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7423 | u32 val, base, offset; | |
7424 | int pipe = crtc->pipe, plane = crtc->plane; | |
7425 | int fourcc, pixel_format; | |
7426 | int aligned_height; | |
7427 | ||
66e514c1 DA |
7428 | crtc->base.primary->fb = kzalloc(sizeof(struct intel_framebuffer), GFP_KERNEL); |
7429 | if (!crtc->base.primary->fb) { | |
4c6baa59 JB |
7430 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
7431 | return; | |
7432 | } | |
7433 | ||
7434 | val = I915_READ(DSPCNTR(plane)); | |
7435 | ||
7436 | if (INTEL_INFO(dev)->gen >= 4) | |
7437 | if (val & DISPPLANE_TILED) | |
7438 | plane_config->tiled = true; | |
7439 | ||
7440 | pixel_format = val & DISPPLANE_PIXFORMAT_MASK; | |
7441 | fourcc = intel_format_to_fourcc(pixel_format); | |
66e514c1 DA |
7442 | crtc->base.primary->fb->pixel_format = fourcc; |
7443 | crtc->base.primary->fb->bits_per_pixel = | |
4c6baa59 JB |
7444 | drm_format_plane_cpp(fourcc, 0) * 8; |
7445 | ||
7446 | base = I915_READ(DSPSURF(plane)) & 0xfffff000; | |
7447 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { | |
7448 | offset = I915_READ(DSPOFFSET(plane)); | |
7449 | } else { | |
7450 | if (plane_config->tiled) | |
7451 | offset = I915_READ(DSPTILEOFF(plane)); | |
7452 | else | |
7453 | offset = I915_READ(DSPLINOFF(plane)); | |
7454 | } | |
7455 | plane_config->base = base; | |
7456 | ||
7457 | val = I915_READ(PIPESRC(pipe)); | |
66e514c1 DA |
7458 | crtc->base.primary->fb->width = ((val >> 16) & 0xfff) + 1; |
7459 | crtc->base.primary->fb->height = ((val >> 0) & 0xfff) + 1; | |
4c6baa59 JB |
7460 | |
7461 | val = I915_READ(DSPSTRIDE(pipe)); | |
026b96e2 | 7462 | crtc->base.primary->fb->pitches[0] = val & 0xffffffc0; |
4c6baa59 | 7463 | |
66e514c1 | 7464 | aligned_height = intel_align_height(dev, crtc->base.primary->fb->height, |
4c6baa59 JB |
7465 | plane_config->tiled); |
7466 | ||
1267a26b FF |
7467 | plane_config->size = PAGE_ALIGN(crtc->base.primary->fb->pitches[0] * |
7468 | aligned_height); | |
4c6baa59 JB |
7469 | |
7470 | DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", | |
66e514c1 DA |
7471 | pipe, plane, crtc->base.primary->fb->width, |
7472 | crtc->base.primary->fb->height, | |
7473 | crtc->base.primary->fb->bits_per_pixel, base, | |
7474 | crtc->base.primary->fb->pitches[0], | |
4c6baa59 JB |
7475 | plane_config->size); |
7476 | } | |
7477 | ||
0e8ffe1b DV |
7478 | static bool ironlake_get_pipe_config(struct intel_crtc *crtc, |
7479 | struct intel_crtc_config *pipe_config) | |
7480 | { | |
7481 | struct drm_device *dev = crtc->base.dev; | |
7482 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7483 | uint32_t tmp; | |
7484 | ||
f458ebbc DV |
7485 | if (!intel_display_power_is_enabled(dev_priv, |
7486 | POWER_DOMAIN_PIPE(crtc->pipe))) | |
930e8c9e PZ |
7487 | return false; |
7488 | ||
e143a21c | 7489 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 | 7490 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
eccb140b | 7491 | |
0e8ffe1b DV |
7492 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
7493 | if (!(tmp & PIPECONF_ENABLE)) | |
7494 | return false; | |
7495 | ||
42571aef VS |
7496 | switch (tmp & PIPECONF_BPC_MASK) { |
7497 | case PIPECONF_6BPC: | |
7498 | pipe_config->pipe_bpp = 18; | |
7499 | break; | |
7500 | case PIPECONF_8BPC: | |
7501 | pipe_config->pipe_bpp = 24; | |
7502 | break; | |
7503 | case PIPECONF_10BPC: | |
7504 | pipe_config->pipe_bpp = 30; | |
7505 | break; | |
7506 | case PIPECONF_12BPC: | |
7507 | pipe_config->pipe_bpp = 36; | |
7508 | break; | |
7509 | default: | |
7510 | break; | |
7511 | } | |
7512 | ||
b5a9fa09 DV |
7513 | if (tmp & PIPECONF_COLOR_RANGE_SELECT) |
7514 | pipe_config->limited_color_range = true; | |
7515 | ||
ab9412ba | 7516 | if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) { |
66e985c0 DV |
7517 | struct intel_shared_dpll *pll; |
7518 | ||
88adfff1 DV |
7519 | pipe_config->has_pch_encoder = true; |
7520 | ||
627eb5a3 DV |
7521 | tmp = I915_READ(FDI_RX_CTL(crtc->pipe)); |
7522 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
7523 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
72419203 DV |
7524 | |
7525 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
6c49f241 | 7526 | |
c0d43d62 | 7527 | if (HAS_PCH_IBX(dev_priv->dev)) { |
d94ab068 DV |
7528 | pipe_config->shared_dpll = |
7529 | (enum intel_dpll_id) crtc->pipe; | |
c0d43d62 DV |
7530 | } else { |
7531 | tmp = I915_READ(PCH_DPLL_SEL); | |
7532 | if (tmp & TRANS_DPLLB_SEL(crtc->pipe)) | |
7533 | pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B; | |
7534 | else | |
7535 | pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A; | |
7536 | } | |
66e985c0 DV |
7537 | |
7538 | pll = &dev_priv->shared_dplls[pipe_config->shared_dpll]; | |
7539 | ||
7540 | WARN_ON(!pll->get_hw_state(dev_priv, pll, | |
7541 | &pipe_config->dpll_hw_state)); | |
c93f54cf DV |
7542 | |
7543 | tmp = pipe_config->dpll_hw_state.dpll; | |
7544 | pipe_config->pixel_multiplier = | |
7545 | ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK) | |
7546 | >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1; | |
18442d08 VS |
7547 | |
7548 | ironlake_pch_clock_get(crtc, pipe_config); | |
6c49f241 DV |
7549 | } else { |
7550 | pipe_config->pixel_multiplier = 1; | |
627eb5a3 DV |
7551 | } |
7552 | ||
1bd1bd80 DV |
7553 | intel_get_pipe_timings(crtc, pipe_config); |
7554 | ||
2fa2fe9a DV |
7555 | ironlake_get_pfit_config(crtc, pipe_config); |
7556 | ||
0e8ffe1b DV |
7557 | return true; |
7558 | } | |
7559 | ||
be256dc7 PZ |
7560 | static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv) |
7561 | { | |
7562 | struct drm_device *dev = dev_priv->dev; | |
be256dc7 | 7563 | struct intel_crtc *crtc; |
be256dc7 | 7564 | |
d3fcc808 | 7565 | for_each_intel_crtc(dev, crtc) |
798183c5 | 7566 | WARN(crtc->active, "CRTC for pipe %c enabled\n", |
be256dc7 PZ |
7567 | pipe_name(crtc->pipe)); |
7568 | ||
7569 | WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n"); | |
8cc3e169 DV |
7570 | WARN(I915_READ(SPLL_CTL) & SPLL_PLL_ENABLE, "SPLL enabled\n"); |
7571 | WARN(I915_READ(WRPLL_CTL1) & WRPLL_PLL_ENABLE, "WRPLL1 enabled\n"); | |
7572 | WARN(I915_READ(WRPLL_CTL2) & WRPLL_PLL_ENABLE, "WRPLL2 enabled\n"); | |
be256dc7 PZ |
7573 | WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n"); |
7574 | WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE, | |
7575 | "CPU PWM1 enabled\n"); | |
c5107b87 PZ |
7576 | if (IS_HASWELL(dev)) |
7577 | WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE, | |
7578 | "CPU PWM2 enabled\n"); | |
be256dc7 PZ |
7579 | WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE, |
7580 | "PCH PWM1 enabled\n"); | |
7581 | WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE, | |
7582 | "Utility pin enabled\n"); | |
7583 | WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n"); | |
7584 | ||
9926ada1 PZ |
7585 | /* |
7586 | * In theory we can still leave IRQs enabled, as long as only the HPD | |
7587 | * interrupts remain enabled. We used to check for that, but since it's | |
7588 | * gen-specific and since we only disable LCPLL after we fully disable | |
7589 | * the interrupts, the check below should be enough. | |
7590 | */ | |
9df7575f | 7591 | WARN(intel_irqs_enabled(dev_priv), "IRQs enabled\n"); |
be256dc7 PZ |
7592 | } |
7593 | ||
9ccd5aeb PZ |
7594 | static uint32_t hsw_read_dcomp(struct drm_i915_private *dev_priv) |
7595 | { | |
7596 | struct drm_device *dev = dev_priv->dev; | |
7597 | ||
7598 | if (IS_HASWELL(dev)) | |
7599 | return I915_READ(D_COMP_HSW); | |
7600 | else | |
7601 | return I915_READ(D_COMP_BDW); | |
7602 | } | |
7603 | ||
3c4c9b81 PZ |
7604 | static void hsw_write_dcomp(struct drm_i915_private *dev_priv, uint32_t val) |
7605 | { | |
7606 | struct drm_device *dev = dev_priv->dev; | |
7607 | ||
7608 | if (IS_HASWELL(dev)) { | |
7609 | mutex_lock(&dev_priv->rps.hw_lock); | |
7610 | if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, | |
7611 | val)) | |
f475dadf | 7612 | DRM_ERROR("Failed to write to D_COMP\n"); |
3c4c9b81 PZ |
7613 | mutex_unlock(&dev_priv->rps.hw_lock); |
7614 | } else { | |
9ccd5aeb PZ |
7615 | I915_WRITE(D_COMP_BDW, val); |
7616 | POSTING_READ(D_COMP_BDW); | |
3c4c9b81 | 7617 | } |
be256dc7 PZ |
7618 | } |
7619 | ||
7620 | /* | |
7621 | * This function implements pieces of two sequences from BSpec: | |
7622 | * - Sequence for display software to disable LCPLL | |
7623 | * - Sequence for display software to allow package C8+ | |
7624 | * The steps implemented here are just the steps that actually touch the LCPLL | |
7625 | * register. Callers should take care of disabling all the display engine | |
7626 | * functions, doing the mode unset, fixing interrupts, etc. | |
7627 | */ | |
6ff58d53 PZ |
7628 | static void hsw_disable_lcpll(struct drm_i915_private *dev_priv, |
7629 | bool switch_to_fclk, bool allow_power_down) | |
be256dc7 PZ |
7630 | { |
7631 | uint32_t val; | |
7632 | ||
7633 | assert_can_disable_lcpll(dev_priv); | |
7634 | ||
7635 | val = I915_READ(LCPLL_CTL); | |
7636 | ||
7637 | if (switch_to_fclk) { | |
7638 | val |= LCPLL_CD_SOURCE_FCLK; | |
7639 | I915_WRITE(LCPLL_CTL, val); | |
7640 | ||
7641 | if (wait_for_atomic_us(I915_READ(LCPLL_CTL) & | |
7642 | LCPLL_CD_SOURCE_FCLK_DONE, 1)) | |
7643 | DRM_ERROR("Switching to FCLK failed\n"); | |
7644 | ||
7645 | val = I915_READ(LCPLL_CTL); | |
7646 | } | |
7647 | ||
7648 | val |= LCPLL_PLL_DISABLE; | |
7649 | I915_WRITE(LCPLL_CTL, val); | |
7650 | POSTING_READ(LCPLL_CTL); | |
7651 | ||
7652 | if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1)) | |
7653 | DRM_ERROR("LCPLL still locked\n"); | |
7654 | ||
9ccd5aeb | 7655 | val = hsw_read_dcomp(dev_priv); |
be256dc7 | 7656 | val |= D_COMP_COMP_DISABLE; |
3c4c9b81 | 7657 | hsw_write_dcomp(dev_priv, val); |
be256dc7 PZ |
7658 | ndelay(100); |
7659 | ||
9ccd5aeb PZ |
7660 | if (wait_for((hsw_read_dcomp(dev_priv) & D_COMP_RCOMP_IN_PROGRESS) == 0, |
7661 | 1)) | |
be256dc7 PZ |
7662 | DRM_ERROR("D_COMP RCOMP still in progress\n"); |
7663 | ||
7664 | if (allow_power_down) { | |
7665 | val = I915_READ(LCPLL_CTL); | |
7666 | val |= LCPLL_POWER_DOWN_ALLOW; | |
7667 | I915_WRITE(LCPLL_CTL, val); | |
7668 | POSTING_READ(LCPLL_CTL); | |
7669 | } | |
7670 | } | |
7671 | ||
7672 | /* | |
7673 | * Fully restores LCPLL, disallowing power down and switching back to LCPLL | |
7674 | * source. | |
7675 | */ | |
6ff58d53 | 7676 | static void hsw_restore_lcpll(struct drm_i915_private *dev_priv) |
be256dc7 PZ |
7677 | { |
7678 | uint32_t val; | |
7679 | ||
7680 | val = I915_READ(LCPLL_CTL); | |
7681 | ||
7682 | if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK | | |
7683 | LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK) | |
7684 | return; | |
7685 | ||
a8a8bd54 PZ |
7686 | /* |
7687 | * Make sure we're not on PC8 state before disabling PC8, otherwise | |
7688 | * we'll hang the machine. To prevent PC8 state, just enable force_wake. | |
7689 | * | |
7690 | * The other problem is that hsw_restore_lcpll() is called as part of | |
7691 | * the runtime PM resume sequence, so we can't just call | |
7692 | * gen6_gt_force_wake_get() because that function calls | |
7693 | * intel_runtime_pm_get(), and we can't change the runtime PM refcount | |
7694 | * while we are on the resume sequence. So to solve this problem we have | |
7695 | * to call special forcewake code that doesn't touch runtime PM and | |
7696 | * doesn't enable the forcewake delayed work. | |
7697 | */ | |
d2e40e27 | 7698 | spin_lock_irq(&dev_priv->uncore.lock); |
a8a8bd54 PZ |
7699 | if (dev_priv->uncore.forcewake_count++ == 0) |
7700 | dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_ALL); | |
d2e40e27 | 7701 | spin_unlock_irq(&dev_priv->uncore.lock); |
215733fa | 7702 | |
be256dc7 PZ |
7703 | if (val & LCPLL_POWER_DOWN_ALLOW) { |
7704 | val &= ~LCPLL_POWER_DOWN_ALLOW; | |
7705 | I915_WRITE(LCPLL_CTL, val); | |
35d8f2eb | 7706 | POSTING_READ(LCPLL_CTL); |
be256dc7 PZ |
7707 | } |
7708 | ||
9ccd5aeb | 7709 | val = hsw_read_dcomp(dev_priv); |
be256dc7 PZ |
7710 | val |= D_COMP_COMP_FORCE; |
7711 | val &= ~D_COMP_COMP_DISABLE; | |
3c4c9b81 | 7712 | hsw_write_dcomp(dev_priv, val); |
be256dc7 PZ |
7713 | |
7714 | val = I915_READ(LCPLL_CTL); | |
7715 | val &= ~LCPLL_PLL_DISABLE; | |
7716 | I915_WRITE(LCPLL_CTL, val); | |
7717 | ||
7718 | if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5)) | |
7719 | DRM_ERROR("LCPLL not locked yet\n"); | |
7720 | ||
7721 | if (val & LCPLL_CD_SOURCE_FCLK) { | |
7722 | val = I915_READ(LCPLL_CTL); | |
7723 | val &= ~LCPLL_CD_SOURCE_FCLK; | |
7724 | I915_WRITE(LCPLL_CTL, val); | |
7725 | ||
7726 | if (wait_for_atomic_us((I915_READ(LCPLL_CTL) & | |
7727 | LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1)) | |
7728 | DRM_ERROR("Switching back to LCPLL failed\n"); | |
7729 | } | |
215733fa | 7730 | |
a8a8bd54 | 7731 | /* See the big comment above. */ |
d2e40e27 | 7732 | spin_lock_irq(&dev_priv->uncore.lock); |
a8a8bd54 PZ |
7733 | if (--dev_priv->uncore.forcewake_count == 0) |
7734 | dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_ALL); | |
d2e40e27 | 7735 | spin_unlock_irq(&dev_priv->uncore.lock); |
be256dc7 PZ |
7736 | } |
7737 | ||
765dab67 PZ |
7738 | /* |
7739 | * Package states C8 and deeper are really deep PC states that can only be | |
7740 | * reached when all the devices on the system allow it, so even if the graphics | |
7741 | * device allows PC8+, it doesn't mean the system will actually get to these | |
7742 | * states. Our driver only allows PC8+ when going into runtime PM. | |
7743 | * | |
7744 | * The requirements for PC8+ are that all the outputs are disabled, the power | |
7745 | * well is disabled and most interrupts are disabled, and these are also | |
7746 | * requirements for runtime PM. When these conditions are met, we manually do | |
7747 | * the other conditions: disable the interrupts, clocks and switch LCPLL refclk | |
7748 | * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard | |
7749 | * hang the machine. | |
7750 | * | |
7751 | * When we really reach PC8 or deeper states (not just when we allow it) we lose | |
7752 | * the state of some registers, so when we come back from PC8+ we need to | |
7753 | * restore this state. We don't get into PC8+ if we're not in RC6, so we don't | |
7754 | * need to take care of the registers kept by RC6. Notice that this happens even | |
7755 | * if we don't put the device in PCI D3 state (which is what currently happens | |
7756 | * because of the runtime PM support). | |
7757 | * | |
7758 | * For more, read "Display Sequences for Package C8" on the hardware | |
7759 | * documentation. | |
7760 | */ | |
a14cb6fc | 7761 | void hsw_enable_pc8(struct drm_i915_private *dev_priv) |
c67a470b | 7762 | { |
c67a470b PZ |
7763 | struct drm_device *dev = dev_priv->dev; |
7764 | uint32_t val; | |
7765 | ||
c67a470b PZ |
7766 | DRM_DEBUG_KMS("Enabling package C8+\n"); |
7767 | ||
c67a470b PZ |
7768 | if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) { |
7769 | val = I915_READ(SOUTH_DSPCLK_GATE_D); | |
7770 | val &= ~PCH_LP_PARTITION_LEVEL_DISABLE; | |
7771 | I915_WRITE(SOUTH_DSPCLK_GATE_D, val); | |
7772 | } | |
7773 | ||
7774 | lpt_disable_clkout_dp(dev); | |
c67a470b PZ |
7775 | hsw_disable_lcpll(dev_priv, true, true); |
7776 | } | |
7777 | ||
a14cb6fc | 7778 | void hsw_disable_pc8(struct drm_i915_private *dev_priv) |
c67a470b PZ |
7779 | { |
7780 | struct drm_device *dev = dev_priv->dev; | |
7781 | uint32_t val; | |
7782 | ||
c67a470b PZ |
7783 | DRM_DEBUG_KMS("Disabling package C8+\n"); |
7784 | ||
7785 | hsw_restore_lcpll(dev_priv); | |
c67a470b PZ |
7786 | lpt_init_pch_refclk(dev); |
7787 | ||
7788 | if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) { | |
7789 | val = I915_READ(SOUTH_DSPCLK_GATE_D); | |
7790 | val |= PCH_LP_PARTITION_LEVEL_DISABLE; | |
7791 | I915_WRITE(SOUTH_DSPCLK_GATE_D, val); | |
7792 | } | |
7793 | ||
7794 | intel_prepare_ddi(dev); | |
c67a470b PZ |
7795 | } |
7796 | ||
9a952a0d PZ |
7797 | static void snb_modeset_global_resources(struct drm_device *dev) |
7798 | { | |
7799 | modeset_update_crtc_power_domains(dev); | |
7800 | } | |
7801 | ||
4f074129 ID |
7802 | static void haswell_modeset_global_resources(struct drm_device *dev) |
7803 | { | |
da723569 | 7804 | modeset_update_crtc_power_domains(dev); |
d6dd9eb1 DV |
7805 | } |
7806 | ||
09b4ddf9 | 7807 | static int haswell_crtc_mode_set(struct drm_crtc *crtc, |
09b4ddf9 PZ |
7808 | int x, int y, |
7809 | struct drm_framebuffer *fb) | |
7810 | { | |
09b4ddf9 | 7811 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
09b4ddf9 | 7812 | |
566b734a | 7813 | if (!intel_ddi_pll_select(intel_crtc)) |
6441ab5f | 7814 | return -EINVAL; |
716c2e55 | 7815 | |
644cef34 DV |
7816 | intel_crtc->lowfreq_avail = false; |
7817 | ||
c8f7a0db | 7818 | return 0; |
79e53945 JB |
7819 | } |
7820 | ||
7d2c8175 DL |
7821 | static void haswell_get_ddi_pll(struct drm_i915_private *dev_priv, |
7822 | enum port port, | |
7823 | struct intel_crtc_config *pipe_config) | |
7824 | { | |
7825 | pipe_config->ddi_pll_sel = I915_READ(PORT_CLK_SEL(port)); | |
7826 | ||
7827 | switch (pipe_config->ddi_pll_sel) { | |
7828 | case PORT_CLK_SEL_WRPLL1: | |
7829 | pipe_config->shared_dpll = DPLL_ID_WRPLL1; | |
7830 | break; | |
7831 | case PORT_CLK_SEL_WRPLL2: | |
7832 | pipe_config->shared_dpll = DPLL_ID_WRPLL2; | |
7833 | break; | |
7834 | } | |
7835 | } | |
7836 | ||
26804afd DV |
7837 | static void haswell_get_ddi_port_state(struct intel_crtc *crtc, |
7838 | struct intel_crtc_config *pipe_config) | |
7839 | { | |
7840 | struct drm_device *dev = crtc->base.dev; | |
7841 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d452c5b6 | 7842 | struct intel_shared_dpll *pll; |
26804afd DV |
7843 | enum port port; |
7844 | uint32_t tmp; | |
7845 | ||
7846 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder)); | |
7847 | ||
7848 | port = (tmp & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT; | |
7849 | ||
7d2c8175 | 7850 | haswell_get_ddi_pll(dev_priv, port, pipe_config); |
9cd86933 | 7851 | |
d452c5b6 DV |
7852 | if (pipe_config->shared_dpll >= 0) { |
7853 | pll = &dev_priv->shared_dplls[pipe_config->shared_dpll]; | |
7854 | ||
7855 | WARN_ON(!pll->get_hw_state(dev_priv, pll, | |
7856 | &pipe_config->dpll_hw_state)); | |
7857 | } | |
7858 | ||
26804afd DV |
7859 | /* |
7860 | * Haswell has only FDI/PCH transcoder A. It is which is connected to | |
7861 | * DDI E. So just check whether this pipe is wired to DDI E and whether | |
7862 | * the PCH transcoder is on. | |
7863 | */ | |
ca370455 DL |
7864 | if (INTEL_INFO(dev)->gen < 9 && |
7865 | (port == PORT_E) && I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) { | |
26804afd DV |
7866 | pipe_config->has_pch_encoder = true; |
7867 | ||
7868 | tmp = I915_READ(FDI_RX_CTL(PIPE_A)); | |
7869 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
7870 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
7871 | ||
7872 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
7873 | } | |
7874 | } | |
7875 | ||
0e8ffe1b DV |
7876 | static bool haswell_get_pipe_config(struct intel_crtc *crtc, |
7877 | struct intel_crtc_config *pipe_config) | |
7878 | { | |
7879 | struct drm_device *dev = crtc->base.dev; | |
7880 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa2fe9a | 7881 | enum intel_display_power_domain pfit_domain; |
0e8ffe1b DV |
7882 | uint32_t tmp; |
7883 | ||
f458ebbc | 7884 | if (!intel_display_power_is_enabled(dev_priv, |
b5482bd0 ID |
7885 | POWER_DOMAIN_PIPE(crtc->pipe))) |
7886 | return false; | |
7887 | ||
e143a21c | 7888 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 DV |
7889 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
7890 | ||
eccb140b DV |
7891 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); |
7892 | if (tmp & TRANS_DDI_FUNC_ENABLE) { | |
7893 | enum pipe trans_edp_pipe; | |
7894 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { | |
7895 | default: | |
7896 | WARN(1, "unknown pipe linked to edp transcoder\n"); | |
7897 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
7898 | case TRANS_DDI_EDP_INPUT_A_ON: | |
7899 | trans_edp_pipe = PIPE_A; | |
7900 | break; | |
7901 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
7902 | trans_edp_pipe = PIPE_B; | |
7903 | break; | |
7904 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
7905 | trans_edp_pipe = PIPE_C; | |
7906 | break; | |
7907 | } | |
7908 | ||
7909 | if (trans_edp_pipe == crtc->pipe) | |
7910 | pipe_config->cpu_transcoder = TRANSCODER_EDP; | |
7911 | } | |
7912 | ||
f458ebbc | 7913 | if (!intel_display_power_is_enabled(dev_priv, |
eccb140b | 7914 | POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder))) |
2bfce950 PZ |
7915 | return false; |
7916 | ||
eccb140b | 7917 | tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder)); |
0e8ffe1b DV |
7918 | if (!(tmp & PIPECONF_ENABLE)) |
7919 | return false; | |
7920 | ||
26804afd | 7921 | haswell_get_ddi_port_state(crtc, pipe_config); |
627eb5a3 | 7922 | |
1bd1bd80 DV |
7923 | intel_get_pipe_timings(crtc, pipe_config); |
7924 | ||
2fa2fe9a | 7925 | pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe); |
f458ebbc | 7926 | if (intel_display_power_is_enabled(dev_priv, pfit_domain)) |
2fa2fe9a | 7927 | ironlake_get_pfit_config(crtc, pipe_config); |
88adfff1 | 7928 | |
e59150dc JB |
7929 | if (IS_HASWELL(dev)) |
7930 | pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) && | |
7931 | (I915_READ(IPS_CTL) & IPS_ENABLE); | |
42db64ef | 7932 | |
ebb69c95 CT |
7933 | if (pipe_config->cpu_transcoder != TRANSCODER_EDP) { |
7934 | pipe_config->pixel_multiplier = | |
7935 | I915_READ(PIPE_MULT(pipe_config->cpu_transcoder)) + 1; | |
7936 | } else { | |
7937 | pipe_config->pixel_multiplier = 1; | |
7938 | } | |
6c49f241 | 7939 | |
0e8ffe1b DV |
7940 | return true; |
7941 | } | |
7942 | ||
1a91510d JN |
7943 | static struct { |
7944 | int clock; | |
7945 | u32 config; | |
7946 | } hdmi_audio_clock[] = { | |
7947 | { DIV_ROUND_UP(25200 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_25175 }, | |
7948 | { 25200, AUD_CONFIG_PIXEL_CLOCK_HDMI_25200 }, /* default per bspec */ | |
7949 | { 27000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27000 }, | |
7950 | { 27000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27027 }, | |
7951 | { 54000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54000 }, | |
7952 | { 54000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54054 }, | |
7953 | { DIV_ROUND_UP(74250 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_74176 }, | |
7954 | { 74250, AUD_CONFIG_PIXEL_CLOCK_HDMI_74250 }, | |
7955 | { DIV_ROUND_UP(148500 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_148352 }, | |
7956 | { 148500, AUD_CONFIG_PIXEL_CLOCK_HDMI_148500 }, | |
7957 | }; | |
7958 | ||
7959 | /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */ | |
7960 | static u32 audio_config_hdmi_pixel_clock(struct drm_display_mode *mode) | |
7961 | { | |
7962 | int i; | |
7963 | ||
7964 | for (i = 0; i < ARRAY_SIZE(hdmi_audio_clock); i++) { | |
7965 | if (mode->clock == hdmi_audio_clock[i].clock) | |
7966 | break; | |
7967 | } | |
7968 | ||
7969 | if (i == ARRAY_SIZE(hdmi_audio_clock)) { | |
7970 | DRM_DEBUG_KMS("HDMI audio pixel clock setting for %d not found, falling back to defaults\n", mode->clock); | |
7971 | i = 1; | |
7972 | } | |
7973 | ||
7974 | DRM_DEBUG_KMS("Configuring HDMI audio for pixel clock %d (0x%08x)\n", | |
7975 | hdmi_audio_clock[i].clock, | |
7976 | hdmi_audio_clock[i].config); | |
7977 | ||
7978 | return hdmi_audio_clock[i].config; | |
7979 | } | |
7980 | ||
3a9627f4 WF |
7981 | static bool intel_eld_uptodate(struct drm_connector *connector, |
7982 | int reg_eldv, uint32_t bits_eldv, | |
7983 | int reg_elda, uint32_t bits_elda, | |
7984 | int reg_edid) | |
7985 | { | |
7986 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
7987 | uint8_t *eld = connector->eld; | |
7988 | uint32_t i; | |
7989 | ||
7990 | i = I915_READ(reg_eldv); | |
7991 | i &= bits_eldv; | |
7992 | ||
7993 | if (!eld[0]) | |
7994 | return !i; | |
7995 | ||
7996 | if (!i) | |
7997 | return false; | |
7998 | ||
7999 | i = I915_READ(reg_elda); | |
8000 | i &= ~bits_elda; | |
8001 | I915_WRITE(reg_elda, i); | |
8002 | ||
8003 | for (i = 0; i < eld[2]; i++) | |
8004 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) | |
8005 | return false; | |
8006 | ||
8007 | return true; | |
8008 | } | |
8009 | ||
e0dac65e | 8010 | static void g4x_write_eld(struct drm_connector *connector, |
34427052 JN |
8011 | struct drm_crtc *crtc, |
8012 | struct drm_display_mode *mode) | |
e0dac65e WF |
8013 | { |
8014 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
8015 | uint8_t *eld = connector->eld; | |
8016 | uint32_t eldv; | |
8017 | uint32_t len; | |
8018 | uint32_t i; | |
8019 | ||
8020 | i = I915_READ(G4X_AUD_VID_DID); | |
8021 | ||
8022 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) | |
8023 | eldv = G4X_ELDV_DEVCL_DEVBLC; | |
8024 | else | |
8025 | eldv = G4X_ELDV_DEVCTG; | |
8026 | ||
3a9627f4 WF |
8027 | if (intel_eld_uptodate(connector, |
8028 | G4X_AUD_CNTL_ST, eldv, | |
8029 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, | |
8030 | G4X_HDMIW_HDMIEDID)) | |
8031 | return; | |
8032 | ||
e0dac65e WF |
8033 | i = I915_READ(G4X_AUD_CNTL_ST); |
8034 | i &= ~(eldv | G4X_ELD_ADDR); | |
8035 | len = (i >> 9) & 0x1f; /* ELD buffer size */ | |
8036 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
8037 | ||
8038 | if (!eld[0]) | |
8039 | return; | |
8040 | ||
8041 | len = min_t(uint8_t, eld[2], len); | |
8042 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
8043 | for (i = 0; i < len; i++) | |
8044 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); | |
8045 | ||
8046 | i = I915_READ(G4X_AUD_CNTL_ST); | |
8047 | i |= eldv; | |
8048 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
8049 | } | |
8050 | ||
83358c85 | 8051 | static void haswell_write_eld(struct drm_connector *connector, |
34427052 JN |
8052 | struct drm_crtc *crtc, |
8053 | struct drm_display_mode *mode) | |
83358c85 WX |
8054 | { |
8055 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
8056 | uint8_t *eld = connector->eld; | |
83358c85 WX |
8057 | uint32_t eldv; |
8058 | uint32_t i; | |
8059 | int len; | |
8060 | int pipe = to_intel_crtc(crtc)->pipe; | |
8061 | int tmp; | |
8062 | ||
8063 | int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe); | |
8064 | int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe); | |
8065 | int aud_config = HSW_AUD_CFG(pipe); | |
8066 | int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD; | |
8067 | ||
83358c85 WX |
8068 | /* Audio output enable */ |
8069 | DRM_DEBUG_DRIVER("HDMI audio: enable codec\n"); | |
8070 | tmp = I915_READ(aud_cntrl_st2); | |
8071 | tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4)); | |
8072 | I915_WRITE(aud_cntrl_st2, tmp); | |
c7905792 | 8073 | POSTING_READ(aud_cntrl_st2); |
83358c85 | 8074 | |
c7905792 | 8075 | assert_pipe_disabled(dev_priv, to_intel_crtc(crtc)->pipe); |
83358c85 WX |
8076 | |
8077 | /* Set ELD valid state */ | |
8078 | tmp = I915_READ(aud_cntrl_st2); | |
7e7cb34f | 8079 | DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp); |
83358c85 WX |
8080 | tmp |= (AUDIO_ELD_VALID_A << (pipe * 4)); |
8081 | I915_WRITE(aud_cntrl_st2, tmp); | |
8082 | tmp = I915_READ(aud_cntrl_st2); | |
7e7cb34f | 8083 | DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp); |
83358c85 WX |
8084 | |
8085 | /* Enable HDMI mode */ | |
8086 | tmp = I915_READ(aud_config); | |
7e7cb34f | 8087 | DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp); |
83358c85 WX |
8088 | /* clear N_programing_enable and N_value_index */ |
8089 | tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE); | |
8090 | I915_WRITE(aud_config, tmp); | |
8091 | ||
8092 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); | |
8093 | ||
8094 | eldv = AUDIO_ELD_VALID_A << (pipe * 4); | |
8095 | ||
8096 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { | |
8097 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
8098 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
8099 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ | |
1a91510d JN |
8100 | } else { |
8101 | I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode)); | |
8102 | } | |
83358c85 WX |
8103 | |
8104 | if (intel_eld_uptodate(connector, | |
8105 | aud_cntrl_st2, eldv, | |
8106 | aud_cntl_st, IBX_ELD_ADDRESS, | |
8107 | hdmiw_hdmiedid)) | |
8108 | return; | |
8109 | ||
8110 | i = I915_READ(aud_cntrl_st2); | |
8111 | i &= ~eldv; | |
8112 | I915_WRITE(aud_cntrl_st2, i); | |
8113 | ||
8114 | if (!eld[0]) | |
8115 | return; | |
8116 | ||
8117 | i = I915_READ(aud_cntl_st); | |
8118 | i &= ~IBX_ELD_ADDRESS; | |
8119 | I915_WRITE(aud_cntl_st, i); | |
8120 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ | |
8121 | DRM_DEBUG_DRIVER("port num:%d\n", i); | |
8122 | ||
8123 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
8124 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
8125 | for (i = 0; i < len; i++) | |
8126 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
8127 | ||
8128 | i = I915_READ(aud_cntrl_st2); | |
8129 | i |= eldv; | |
8130 | I915_WRITE(aud_cntrl_st2, i); | |
8131 | ||
8132 | } | |
8133 | ||
e0dac65e | 8134 | static void ironlake_write_eld(struct drm_connector *connector, |
34427052 JN |
8135 | struct drm_crtc *crtc, |
8136 | struct drm_display_mode *mode) | |
e0dac65e WF |
8137 | { |
8138 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
8139 | uint8_t *eld = connector->eld; | |
8140 | uint32_t eldv; | |
8141 | uint32_t i; | |
8142 | int len; | |
8143 | int hdmiw_hdmiedid; | |
b6daa025 | 8144 | int aud_config; |
e0dac65e WF |
8145 | int aud_cntl_st; |
8146 | int aud_cntrl_st2; | |
9b138a83 | 8147 | int pipe = to_intel_crtc(crtc)->pipe; |
e0dac65e | 8148 | |
b3f33cbf | 8149 | if (HAS_PCH_IBX(connector->dev)) { |
9b138a83 WX |
8150 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe); |
8151 | aud_config = IBX_AUD_CFG(pipe); | |
8152 | aud_cntl_st = IBX_AUD_CNTL_ST(pipe); | |
1202b4c6 | 8153 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; |
9ca2fe73 ML |
8154 | } else if (IS_VALLEYVIEW(connector->dev)) { |
8155 | hdmiw_hdmiedid = VLV_HDMIW_HDMIEDID(pipe); | |
8156 | aud_config = VLV_AUD_CFG(pipe); | |
8157 | aud_cntl_st = VLV_AUD_CNTL_ST(pipe); | |
8158 | aud_cntrl_st2 = VLV_AUD_CNTL_ST2; | |
e0dac65e | 8159 | } else { |
9b138a83 WX |
8160 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe); |
8161 | aud_config = CPT_AUD_CFG(pipe); | |
8162 | aud_cntl_st = CPT_AUD_CNTL_ST(pipe); | |
1202b4c6 | 8163 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; |
e0dac65e WF |
8164 | } |
8165 | ||
9b138a83 | 8166 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); |
e0dac65e | 8167 | |
9ca2fe73 ML |
8168 | if (IS_VALLEYVIEW(connector->dev)) { |
8169 | struct intel_encoder *intel_encoder; | |
8170 | struct intel_digital_port *intel_dig_port; | |
8171 | ||
8172 | intel_encoder = intel_attached_encoder(connector); | |
8173 | intel_dig_port = enc_to_dig_port(&intel_encoder->base); | |
8174 | i = intel_dig_port->port; | |
8175 | } else { | |
8176 | i = I915_READ(aud_cntl_st); | |
8177 | i = (i >> 29) & DIP_PORT_SEL_MASK; | |
8178 | /* DIP_Port_Select, 0x1 = PortB */ | |
8179 | } | |
8180 | ||
e0dac65e WF |
8181 | if (!i) { |
8182 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); | |
8183 | /* operate blindly on all ports */ | |
1202b4c6 WF |
8184 | eldv = IBX_ELD_VALIDB; |
8185 | eldv |= IBX_ELD_VALIDB << 4; | |
8186 | eldv |= IBX_ELD_VALIDB << 8; | |
e0dac65e | 8187 | } else { |
2582a850 | 8188 | DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i)); |
1202b4c6 | 8189 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
e0dac65e WF |
8190 | } |
8191 | ||
3a9627f4 WF |
8192 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
8193 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
8194 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
b6daa025 | 8195 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
1a91510d JN |
8196 | } else { |
8197 | I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode)); | |
8198 | } | |
e0dac65e | 8199 | |
3a9627f4 WF |
8200 | if (intel_eld_uptodate(connector, |
8201 | aud_cntrl_st2, eldv, | |
8202 | aud_cntl_st, IBX_ELD_ADDRESS, | |
8203 | hdmiw_hdmiedid)) | |
8204 | return; | |
8205 | ||
e0dac65e WF |
8206 | i = I915_READ(aud_cntrl_st2); |
8207 | i &= ~eldv; | |
8208 | I915_WRITE(aud_cntrl_st2, i); | |
8209 | ||
8210 | if (!eld[0]) | |
8211 | return; | |
8212 | ||
e0dac65e | 8213 | i = I915_READ(aud_cntl_st); |
1202b4c6 | 8214 | i &= ~IBX_ELD_ADDRESS; |
e0dac65e WF |
8215 | I915_WRITE(aud_cntl_st, i); |
8216 | ||
8217 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
8218 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
8219 | for (i = 0; i < len; i++) | |
8220 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
8221 | ||
8222 | i = I915_READ(aud_cntrl_st2); | |
8223 | i |= eldv; | |
8224 | I915_WRITE(aud_cntrl_st2, i); | |
8225 | } | |
8226 | ||
8227 | void intel_write_eld(struct drm_encoder *encoder, | |
8228 | struct drm_display_mode *mode) | |
8229 | { | |
8230 | struct drm_crtc *crtc = encoder->crtc; | |
8231 | struct drm_connector *connector; | |
8232 | struct drm_device *dev = encoder->dev; | |
8233 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8234 | ||
8235 | connector = drm_select_eld(encoder, mode); | |
8236 | if (!connector) | |
8237 | return; | |
8238 | ||
8239 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", | |
8240 | connector->base.id, | |
c23cc417 | 8241 | connector->name, |
e0dac65e | 8242 | connector->encoder->base.id, |
8e329a03 | 8243 | connector->encoder->name); |
e0dac65e WF |
8244 | |
8245 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; | |
8246 | ||
8247 | if (dev_priv->display.write_eld) | |
34427052 | 8248 | dev_priv->display.write_eld(connector, crtc, mode); |
e0dac65e WF |
8249 | } |
8250 | ||
560b85bb CW |
8251 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
8252 | { | |
8253 | struct drm_device *dev = crtc->dev; | |
8254 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8255 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
dc41c154 | 8256 | uint32_t cntl = 0, size = 0; |
560b85bb | 8257 | |
dc41c154 VS |
8258 | if (base) { |
8259 | unsigned int width = intel_crtc->cursor_width; | |
8260 | unsigned int height = intel_crtc->cursor_height; | |
8261 | unsigned int stride = roundup_pow_of_two(width) * 4; | |
8262 | ||
8263 | switch (stride) { | |
8264 | default: | |
8265 | WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n", | |
8266 | width, stride); | |
8267 | stride = 256; | |
8268 | /* fallthrough */ | |
8269 | case 256: | |
8270 | case 512: | |
8271 | case 1024: | |
8272 | case 2048: | |
8273 | break; | |
4b0e333e CW |
8274 | } |
8275 | ||
dc41c154 VS |
8276 | cntl |= CURSOR_ENABLE | |
8277 | CURSOR_GAMMA_ENABLE | | |
8278 | CURSOR_FORMAT_ARGB | | |
8279 | CURSOR_STRIDE(stride); | |
8280 | ||
8281 | size = (height << 12) | width; | |
4b0e333e | 8282 | } |
560b85bb | 8283 | |
dc41c154 VS |
8284 | if (intel_crtc->cursor_cntl != 0 && |
8285 | (intel_crtc->cursor_base != base || | |
8286 | intel_crtc->cursor_size != size || | |
8287 | intel_crtc->cursor_cntl != cntl)) { | |
8288 | /* On these chipsets we can only modify the base/size/stride | |
8289 | * whilst the cursor is disabled. | |
8290 | */ | |
8291 | I915_WRITE(_CURACNTR, 0); | |
4b0e333e | 8292 | POSTING_READ(_CURACNTR); |
dc41c154 | 8293 | intel_crtc->cursor_cntl = 0; |
4b0e333e | 8294 | } |
560b85bb | 8295 | |
99d1f387 | 8296 | if (intel_crtc->cursor_base != base) { |
9db4a9c7 | 8297 | I915_WRITE(_CURABASE, base); |
99d1f387 VS |
8298 | intel_crtc->cursor_base = base; |
8299 | } | |
4726e0b0 | 8300 | |
dc41c154 VS |
8301 | if (intel_crtc->cursor_size != size) { |
8302 | I915_WRITE(CURSIZE, size); | |
8303 | intel_crtc->cursor_size = size; | |
4b0e333e | 8304 | } |
560b85bb | 8305 | |
4b0e333e | 8306 | if (intel_crtc->cursor_cntl != cntl) { |
4b0e333e CW |
8307 | I915_WRITE(_CURACNTR, cntl); |
8308 | POSTING_READ(_CURACNTR); | |
4b0e333e | 8309 | intel_crtc->cursor_cntl = cntl; |
560b85bb | 8310 | } |
560b85bb CW |
8311 | } |
8312 | ||
560b85bb | 8313 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) |
65a21cd6 JB |
8314 | { |
8315 | struct drm_device *dev = crtc->dev; | |
8316 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8317 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8318 | int pipe = intel_crtc->pipe; | |
4b0e333e CW |
8319 | uint32_t cntl; |
8320 | ||
8321 | cntl = 0; | |
8322 | if (base) { | |
8323 | cntl = MCURSOR_GAMMA_ENABLE; | |
8324 | switch (intel_crtc->cursor_width) { | |
4726e0b0 SK |
8325 | case 64: |
8326 | cntl |= CURSOR_MODE_64_ARGB_AX; | |
8327 | break; | |
8328 | case 128: | |
8329 | cntl |= CURSOR_MODE_128_ARGB_AX; | |
8330 | break; | |
8331 | case 256: | |
8332 | cntl |= CURSOR_MODE_256_ARGB_AX; | |
8333 | break; | |
8334 | default: | |
8335 | WARN_ON(1); | |
8336 | return; | |
65a21cd6 | 8337 | } |
4b0e333e | 8338 | cntl |= pipe << 28; /* Connect to correct pipe */ |
47bf17a7 VS |
8339 | |
8340 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) | |
8341 | cntl |= CURSOR_PIPE_CSC_ENABLE; | |
4b0e333e | 8342 | } |
65a21cd6 | 8343 | |
4b0e333e CW |
8344 | if (intel_crtc->cursor_cntl != cntl) { |
8345 | I915_WRITE(CURCNTR(pipe), cntl); | |
8346 | POSTING_READ(CURCNTR(pipe)); | |
8347 | intel_crtc->cursor_cntl = cntl; | |
65a21cd6 | 8348 | } |
4b0e333e | 8349 | |
65a21cd6 | 8350 | /* and commit changes on next vblank */ |
5efb3e28 VS |
8351 | I915_WRITE(CURBASE(pipe), base); |
8352 | POSTING_READ(CURBASE(pipe)); | |
99d1f387 VS |
8353 | |
8354 | intel_crtc->cursor_base = base; | |
65a21cd6 JB |
8355 | } |
8356 | ||
cda4b7d3 | 8357 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
8358 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
8359 | bool on) | |
cda4b7d3 CW |
8360 | { |
8361 | struct drm_device *dev = crtc->dev; | |
8362 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8363 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8364 | int pipe = intel_crtc->pipe; | |
3d7d6510 MR |
8365 | int x = crtc->cursor_x; |
8366 | int y = crtc->cursor_y; | |
d6e4db15 | 8367 | u32 base = 0, pos = 0; |
cda4b7d3 | 8368 | |
d6e4db15 | 8369 | if (on) |
cda4b7d3 | 8370 | base = intel_crtc->cursor_addr; |
cda4b7d3 | 8371 | |
d6e4db15 VS |
8372 | if (x >= intel_crtc->config.pipe_src_w) |
8373 | base = 0; | |
8374 | ||
8375 | if (y >= intel_crtc->config.pipe_src_h) | |
cda4b7d3 CW |
8376 | base = 0; |
8377 | ||
8378 | if (x < 0) { | |
efc9064e | 8379 | if (x + intel_crtc->cursor_width <= 0) |
cda4b7d3 CW |
8380 | base = 0; |
8381 | ||
8382 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
8383 | x = -x; | |
8384 | } | |
8385 | pos |= x << CURSOR_X_SHIFT; | |
8386 | ||
8387 | if (y < 0) { | |
efc9064e | 8388 | if (y + intel_crtc->cursor_height <= 0) |
cda4b7d3 CW |
8389 | base = 0; |
8390 | ||
8391 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
8392 | y = -y; | |
8393 | } | |
8394 | pos |= y << CURSOR_Y_SHIFT; | |
8395 | ||
4b0e333e | 8396 | if (base == 0 && intel_crtc->cursor_base == 0) |
cda4b7d3 CW |
8397 | return; |
8398 | ||
5efb3e28 VS |
8399 | I915_WRITE(CURPOS(pipe), pos); |
8400 | ||
8ac54669 | 8401 | if (IS_845G(dev) || IS_I865G(dev)) |
5efb3e28 VS |
8402 | i845_update_cursor(crtc, base); |
8403 | else | |
8404 | i9xx_update_cursor(crtc, base); | |
cda4b7d3 CW |
8405 | } |
8406 | ||
dc41c154 VS |
8407 | static bool cursor_size_ok(struct drm_device *dev, |
8408 | uint32_t width, uint32_t height) | |
8409 | { | |
8410 | if (width == 0 || height == 0) | |
8411 | return false; | |
8412 | ||
8413 | /* | |
8414 | * 845g/865g are special in that they are only limited by | |
8415 | * the width of their cursors, the height is arbitrary up to | |
8416 | * the precision of the register. Everything else requires | |
8417 | * square cursors, limited to a few power-of-two sizes. | |
8418 | */ | |
8419 | if (IS_845G(dev) || IS_I865G(dev)) { | |
8420 | if ((width & 63) != 0) | |
8421 | return false; | |
8422 | ||
8423 | if (width > (IS_845G(dev) ? 64 : 512)) | |
8424 | return false; | |
8425 | ||
8426 | if (height > 1023) | |
8427 | return false; | |
8428 | } else { | |
8429 | switch (width | height) { | |
8430 | case 256: | |
8431 | case 128: | |
8432 | if (IS_GEN2(dev)) | |
8433 | return false; | |
8434 | case 64: | |
8435 | break; | |
8436 | default: | |
8437 | return false; | |
8438 | } | |
8439 | } | |
8440 | ||
8441 | return true; | |
8442 | } | |
8443 | ||
e3287951 MR |
8444 | static int intel_crtc_cursor_set_obj(struct drm_crtc *crtc, |
8445 | struct drm_i915_gem_object *obj, | |
8446 | uint32_t width, uint32_t height) | |
79e53945 JB |
8447 | { |
8448 | struct drm_device *dev = crtc->dev; | |
8449 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8450 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
a071fa00 | 8451 | enum pipe pipe = intel_crtc->pipe; |
757f9a3e | 8452 | unsigned old_width; |
cda4b7d3 | 8453 | uint32_t addr; |
3f8bc370 | 8454 | int ret; |
79e53945 | 8455 | |
79e53945 | 8456 | /* if we want to turn off the cursor ignore width and height */ |
e3287951 | 8457 | if (!obj) { |
28c97730 | 8458 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 | 8459 | addr = 0; |
5004417d | 8460 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 8461 | goto finish; |
79e53945 JB |
8462 | } |
8463 | ||
71acb5eb | 8464 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 8465 | mutex_lock(&dev->struct_mutex); |
3d13ef2e | 8466 | if (!INTEL_INFO(dev)->cursor_needs_physical) { |
693db184 CW |
8467 | unsigned alignment; |
8468 | ||
d6dd6843 PZ |
8469 | /* |
8470 | * Global gtt pte registers are special registers which actually | |
8471 | * forward writes to a chunk of system memory. Which means that | |
8472 | * there is no risk that the register values disappear as soon | |
8473 | * as we call intel_runtime_pm_put(), so it is correct to wrap | |
8474 | * only the pin/unpin/fence and not more. | |
8475 | */ | |
8476 | intel_runtime_pm_get(dev_priv); | |
8477 | ||
693db184 CW |
8478 | /* Note that the w/a also requires 2 PTE of padding following |
8479 | * the bo. We currently fill all unused PTE with the shadow | |
8480 | * page and so we should always have valid PTE following the | |
8481 | * cursor preventing the VT-d warning. | |
8482 | */ | |
8483 | alignment = 0; | |
8484 | if (need_vtd_wa(dev)) | |
8485 | alignment = 64*1024; | |
8486 | ||
8487 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL); | |
e7b526bb | 8488 | if (ret) { |
3b25b31f | 8489 | DRM_DEBUG_KMS("failed to move cursor bo into the GTT\n"); |
d6dd6843 | 8490 | intel_runtime_pm_put(dev_priv); |
2da3b9b9 | 8491 | goto fail_locked; |
e7b526bb CW |
8492 | } |
8493 | ||
d9e86c0e CW |
8494 | ret = i915_gem_object_put_fence(obj); |
8495 | if (ret) { | |
3b25b31f | 8496 | DRM_DEBUG_KMS("failed to release fence for cursor"); |
d6dd6843 | 8497 | intel_runtime_pm_put(dev_priv); |
d9e86c0e CW |
8498 | goto fail_unpin; |
8499 | } | |
8500 | ||
f343c5f6 | 8501 | addr = i915_gem_obj_ggtt_offset(obj); |
d6dd6843 PZ |
8502 | |
8503 | intel_runtime_pm_put(dev_priv); | |
71acb5eb | 8504 | } else { |
6eeefaf3 | 8505 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
00731155 | 8506 | ret = i915_gem_object_attach_phys(obj, align); |
71acb5eb | 8507 | if (ret) { |
3b25b31f | 8508 | DRM_DEBUG_KMS("failed to attach phys object\n"); |
7f9872e0 | 8509 | goto fail_locked; |
71acb5eb | 8510 | } |
00731155 | 8511 | addr = obj->phys_handle->busaddr; |
3f8bc370 KH |
8512 | } |
8513 | ||
3f8bc370 | 8514 | finish: |
3f8bc370 | 8515 | if (intel_crtc->cursor_bo) { |
00731155 | 8516 | if (!INTEL_INFO(dev)->cursor_needs_physical) |
cc98b413 | 8517 | i915_gem_object_unpin_from_display_plane(intel_crtc->cursor_bo); |
3f8bc370 | 8518 | } |
80824003 | 8519 | |
a071fa00 DV |
8520 | i915_gem_track_fb(intel_crtc->cursor_bo, obj, |
8521 | INTEL_FRONTBUFFER_CURSOR(pipe)); | |
7f9872e0 | 8522 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 | 8523 | |
64f962e3 CW |
8524 | old_width = intel_crtc->cursor_width; |
8525 | ||
3f8bc370 | 8526 | intel_crtc->cursor_addr = addr; |
05394f39 | 8527 | intel_crtc->cursor_bo = obj; |
cda4b7d3 CW |
8528 | intel_crtc->cursor_width = width; |
8529 | intel_crtc->cursor_height = height; | |
8530 | ||
64f962e3 CW |
8531 | if (intel_crtc->active) { |
8532 | if (old_width != width) | |
8533 | intel_update_watermarks(crtc); | |
f2f5f771 | 8534 | intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL); |
64f962e3 | 8535 | } |
3f8bc370 | 8536 | |
f99d7069 DV |
8537 | intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_CURSOR(pipe)); |
8538 | ||
79e53945 | 8539 | return 0; |
e7b526bb | 8540 | fail_unpin: |
cc98b413 | 8541 | i915_gem_object_unpin_from_display_plane(obj); |
7f9872e0 | 8542 | fail_locked: |
34b8686e DA |
8543 | mutex_unlock(&dev->struct_mutex); |
8544 | return ret; | |
79e53945 JB |
8545 | } |
8546 | ||
79e53945 | 8547 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 8548 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 8549 | { |
7203425a | 8550 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 8551 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 8552 | |
7203425a | 8553 | for (i = start; i < end; i++) { |
79e53945 JB |
8554 | intel_crtc->lut_r[i] = red[i] >> 8; |
8555 | intel_crtc->lut_g[i] = green[i] >> 8; | |
8556 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
8557 | } | |
8558 | ||
8559 | intel_crtc_load_lut(crtc); | |
8560 | } | |
8561 | ||
79e53945 JB |
8562 | /* VESA 640x480x72Hz mode to set on the pipe */ |
8563 | static struct drm_display_mode load_detect_mode = { | |
8564 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
8565 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
8566 | }; | |
8567 | ||
a8bb6818 DV |
8568 | struct drm_framebuffer * |
8569 | __intel_framebuffer_create(struct drm_device *dev, | |
8570 | struct drm_mode_fb_cmd2 *mode_cmd, | |
8571 | struct drm_i915_gem_object *obj) | |
d2dff872 CW |
8572 | { |
8573 | struct intel_framebuffer *intel_fb; | |
8574 | int ret; | |
8575 | ||
8576 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
8577 | if (!intel_fb) { | |
8578 | drm_gem_object_unreference_unlocked(&obj->base); | |
8579 | return ERR_PTR(-ENOMEM); | |
8580 | } | |
8581 | ||
8582 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
dd4916c5 DV |
8583 | if (ret) |
8584 | goto err; | |
d2dff872 CW |
8585 | |
8586 | return &intel_fb->base; | |
dd4916c5 DV |
8587 | err: |
8588 | drm_gem_object_unreference_unlocked(&obj->base); | |
8589 | kfree(intel_fb); | |
8590 | ||
8591 | return ERR_PTR(ret); | |
d2dff872 CW |
8592 | } |
8593 | ||
b5ea642a | 8594 | static struct drm_framebuffer * |
a8bb6818 DV |
8595 | intel_framebuffer_create(struct drm_device *dev, |
8596 | struct drm_mode_fb_cmd2 *mode_cmd, | |
8597 | struct drm_i915_gem_object *obj) | |
8598 | { | |
8599 | struct drm_framebuffer *fb; | |
8600 | int ret; | |
8601 | ||
8602 | ret = i915_mutex_lock_interruptible(dev); | |
8603 | if (ret) | |
8604 | return ERR_PTR(ret); | |
8605 | fb = __intel_framebuffer_create(dev, mode_cmd, obj); | |
8606 | mutex_unlock(&dev->struct_mutex); | |
8607 | ||
8608 | return fb; | |
8609 | } | |
8610 | ||
d2dff872 CW |
8611 | static u32 |
8612 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
8613 | { | |
8614 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
8615 | return ALIGN(pitch, 64); | |
8616 | } | |
8617 | ||
8618 | static u32 | |
8619 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
8620 | { | |
8621 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
1267a26b | 8622 | return PAGE_ALIGN(pitch * mode->vdisplay); |
d2dff872 CW |
8623 | } |
8624 | ||
8625 | static struct drm_framebuffer * | |
8626 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
8627 | struct drm_display_mode *mode, | |
8628 | int depth, int bpp) | |
8629 | { | |
8630 | struct drm_i915_gem_object *obj; | |
0fed39bd | 8631 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; |
d2dff872 CW |
8632 | |
8633 | obj = i915_gem_alloc_object(dev, | |
8634 | intel_framebuffer_size_for_mode(mode, bpp)); | |
8635 | if (obj == NULL) | |
8636 | return ERR_PTR(-ENOMEM); | |
8637 | ||
8638 | mode_cmd.width = mode->hdisplay; | |
8639 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
8640 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
8641 | bpp); | |
5ca0c34a | 8642 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
8643 | |
8644 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
8645 | } | |
8646 | ||
8647 | static struct drm_framebuffer * | |
8648 | mode_fits_in_fbdev(struct drm_device *dev, | |
8649 | struct drm_display_mode *mode) | |
8650 | { | |
4520f53a | 8651 | #ifdef CONFIG_DRM_I915_FBDEV |
d2dff872 CW |
8652 | struct drm_i915_private *dev_priv = dev->dev_private; |
8653 | struct drm_i915_gem_object *obj; | |
8654 | struct drm_framebuffer *fb; | |
8655 | ||
4c0e5528 | 8656 | if (!dev_priv->fbdev) |
d2dff872 CW |
8657 | return NULL; |
8658 | ||
4c0e5528 | 8659 | if (!dev_priv->fbdev->fb) |
d2dff872 CW |
8660 | return NULL; |
8661 | ||
4c0e5528 DV |
8662 | obj = dev_priv->fbdev->fb->obj; |
8663 | BUG_ON(!obj); | |
8664 | ||
8bcd4553 | 8665 | fb = &dev_priv->fbdev->fb->base; |
01f2c773 VS |
8666 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
8667 | fb->bits_per_pixel)) | |
d2dff872 CW |
8668 | return NULL; |
8669 | ||
01f2c773 | 8670 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
8671 | return NULL; |
8672 | ||
8673 | return fb; | |
4520f53a DV |
8674 | #else |
8675 | return NULL; | |
8676 | #endif | |
d2dff872 CW |
8677 | } |
8678 | ||
d2434ab7 | 8679 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 8680 | struct drm_display_mode *mode, |
51fd371b RC |
8681 | struct intel_load_detect_pipe *old, |
8682 | struct drm_modeset_acquire_ctx *ctx) | |
79e53945 JB |
8683 | { |
8684 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
8685 | struct intel_encoder *intel_encoder = |
8686 | intel_attached_encoder(connector); | |
79e53945 | 8687 | struct drm_crtc *possible_crtc; |
4ef69c7a | 8688 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
8689 | struct drm_crtc *crtc = NULL; |
8690 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 8691 | struct drm_framebuffer *fb; |
51fd371b RC |
8692 | struct drm_mode_config *config = &dev->mode_config; |
8693 | int ret, i = -1; | |
79e53945 | 8694 | |
d2dff872 | 8695 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
c23cc417 | 8696 | connector->base.id, connector->name, |
8e329a03 | 8697 | encoder->base.id, encoder->name); |
d2dff872 | 8698 | |
51fd371b RC |
8699 | retry: |
8700 | ret = drm_modeset_lock(&config->connection_mutex, ctx); | |
8701 | if (ret) | |
8702 | goto fail_unlock; | |
6e9f798d | 8703 | |
79e53945 JB |
8704 | /* |
8705 | * Algorithm gets a little messy: | |
7a5e4805 | 8706 | * |
79e53945 JB |
8707 | * - if the connector already has an assigned crtc, use it (but make |
8708 | * sure it's on first) | |
7a5e4805 | 8709 | * |
79e53945 JB |
8710 | * - try to find the first unused crtc that can drive this connector, |
8711 | * and use that if we find one | |
79e53945 JB |
8712 | */ |
8713 | ||
8714 | /* See if we already have a CRTC for this connector */ | |
8715 | if (encoder->crtc) { | |
8716 | crtc = encoder->crtc; | |
8261b191 | 8717 | |
51fd371b RC |
8718 | ret = drm_modeset_lock(&crtc->mutex, ctx); |
8719 | if (ret) | |
8720 | goto fail_unlock; | |
7b24056b | 8721 | |
24218aac | 8722 | old->dpms_mode = connector->dpms; |
8261b191 CW |
8723 | old->load_detect_temp = false; |
8724 | ||
8725 | /* Make sure the crtc and connector are running */ | |
24218aac DV |
8726 | if (connector->dpms != DRM_MODE_DPMS_ON) |
8727 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); | |
8261b191 | 8728 | |
7173188d | 8729 | return true; |
79e53945 JB |
8730 | } |
8731 | ||
8732 | /* Find an unused one (if possible) */ | |
70e1e0ec | 8733 | for_each_crtc(dev, possible_crtc) { |
79e53945 JB |
8734 | i++; |
8735 | if (!(encoder->possible_crtcs & (1 << i))) | |
8736 | continue; | |
a459249c VS |
8737 | if (possible_crtc->enabled) |
8738 | continue; | |
8739 | /* This can occur when applying the pipe A quirk on resume. */ | |
8740 | if (to_intel_crtc(possible_crtc)->new_enabled) | |
8741 | continue; | |
8742 | ||
8743 | crtc = possible_crtc; | |
8744 | break; | |
79e53945 JB |
8745 | } |
8746 | ||
8747 | /* | |
8748 | * If we didn't find an unused CRTC, don't use any. | |
8749 | */ | |
8750 | if (!crtc) { | |
7173188d | 8751 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
51fd371b | 8752 | goto fail_unlock; |
79e53945 JB |
8753 | } |
8754 | ||
51fd371b RC |
8755 | ret = drm_modeset_lock(&crtc->mutex, ctx); |
8756 | if (ret) | |
8757 | goto fail_unlock; | |
fc303101 DV |
8758 | intel_encoder->new_crtc = to_intel_crtc(crtc); |
8759 | to_intel_connector(connector)->new_encoder = intel_encoder; | |
79e53945 JB |
8760 | |
8761 | intel_crtc = to_intel_crtc(crtc); | |
412b61d8 VS |
8762 | intel_crtc->new_enabled = true; |
8763 | intel_crtc->new_config = &intel_crtc->config; | |
24218aac | 8764 | old->dpms_mode = connector->dpms; |
8261b191 | 8765 | old->load_detect_temp = true; |
d2dff872 | 8766 | old->release_fb = NULL; |
79e53945 | 8767 | |
6492711d CW |
8768 | if (!mode) |
8769 | mode = &load_detect_mode; | |
79e53945 | 8770 | |
d2dff872 CW |
8771 | /* We need a framebuffer large enough to accommodate all accesses |
8772 | * that the plane may generate whilst we perform load detection. | |
8773 | * We can not rely on the fbcon either being present (we get called | |
8774 | * during its initialisation to detect all boot displays, or it may | |
8775 | * not even exist) or that it is large enough to satisfy the | |
8776 | * requested mode. | |
8777 | */ | |
94352cf9 DV |
8778 | fb = mode_fits_in_fbdev(dev, mode); |
8779 | if (fb == NULL) { | |
d2dff872 | 8780 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 DV |
8781 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
8782 | old->release_fb = fb; | |
d2dff872 CW |
8783 | } else |
8784 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 8785 | if (IS_ERR(fb)) { |
d2dff872 | 8786 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
412b61d8 | 8787 | goto fail; |
79e53945 | 8788 | } |
79e53945 | 8789 | |
c0c36b94 | 8790 | if (intel_set_mode(crtc, mode, 0, 0, fb)) { |
6492711d | 8791 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
8792 | if (old->release_fb) |
8793 | old->release_fb->funcs->destroy(old->release_fb); | |
412b61d8 | 8794 | goto fail; |
79e53945 | 8795 | } |
7173188d | 8796 | |
79e53945 | 8797 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 8798 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
7173188d | 8799 | return true; |
412b61d8 VS |
8800 | |
8801 | fail: | |
8802 | intel_crtc->new_enabled = crtc->enabled; | |
8803 | if (intel_crtc->new_enabled) | |
8804 | intel_crtc->new_config = &intel_crtc->config; | |
8805 | else | |
8806 | intel_crtc->new_config = NULL; | |
51fd371b RC |
8807 | fail_unlock: |
8808 | if (ret == -EDEADLK) { | |
8809 | drm_modeset_backoff(ctx); | |
8810 | goto retry; | |
8811 | } | |
8812 | ||
412b61d8 | 8813 | return false; |
79e53945 JB |
8814 | } |
8815 | ||
d2434ab7 | 8816 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
208bf9fd | 8817 | struct intel_load_detect_pipe *old) |
79e53945 | 8818 | { |
d2434ab7 DV |
8819 | struct intel_encoder *intel_encoder = |
8820 | intel_attached_encoder(connector); | |
4ef69c7a | 8821 | struct drm_encoder *encoder = &intel_encoder->base; |
7b24056b | 8822 | struct drm_crtc *crtc = encoder->crtc; |
412b61d8 | 8823 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 8824 | |
d2dff872 | 8825 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
c23cc417 | 8826 | connector->base.id, connector->name, |
8e329a03 | 8827 | encoder->base.id, encoder->name); |
d2dff872 | 8828 | |
8261b191 | 8829 | if (old->load_detect_temp) { |
fc303101 DV |
8830 | to_intel_connector(connector)->new_encoder = NULL; |
8831 | intel_encoder->new_crtc = NULL; | |
412b61d8 VS |
8832 | intel_crtc->new_enabled = false; |
8833 | intel_crtc->new_config = NULL; | |
fc303101 | 8834 | intel_set_mode(crtc, NULL, 0, 0, NULL); |
d2dff872 | 8835 | |
36206361 DV |
8836 | if (old->release_fb) { |
8837 | drm_framebuffer_unregister_private(old->release_fb); | |
8838 | drm_framebuffer_unreference(old->release_fb); | |
8839 | } | |
d2dff872 | 8840 | |
0622a53c | 8841 | return; |
79e53945 JB |
8842 | } |
8843 | ||
c751ce4f | 8844 | /* Switch crtc and encoder back off if necessary */ |
24218aac DV |
8845 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
8846 | connector->funcs->dpms(connector, old->dpms_mode); | |
79e53945 JB |
8847 | } |
8848 | ||
da4a1efa VS |
8849 | static int i9xx_pll_refclk(struct drm_device *dev, |
8850 | const struct intel_crtc_config *pipe_config) | |
8851 | { | |
8852 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8853 | u32 dpll = pipe_config->dpll_hw_state.dpll; | |
8854 | ||
8855 | if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN) | |
e91e941b | 8856 | return dev_priv->vbt.lvds_ssc_freq; |
da4a1efa VS |
8857 | else if (HAS_PCH_SPLIT(dev)) |
8858 | return 120000; | |
8859 | else if (!IS_GEN2(dev)) | |
8860 | return 96000; | |
8861 | else | |
8862 | return 48000; | |
8863 | } | |
8864 | ||
79e53945 | 8865 | /* Returns the clock of the currently programmed mode of the given pipe. */ |
f1f644dc JB |
8866 | static void i9xx_crtc_clock_get(struct intel_crtc *crtc, |
8867 | struct intel_crtc_config *pipe_config) | |
79e53945 | 8868 | { |
f1f644dc | 8869 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 8870 | struct drm_i915_private *dev_priv = dev->dev_private; |
f1f644dc | 8871 | int pipe = pipe_config->cpu_transcoder; |
293623f7 | 8872 | u32 dpll = pipe_config->dpll_hw_state.dpll; |
79e53945 JB |
8873 | u32 fp; |
8874 | intel_clock_t clock; | |
da4a1efa | 8875 | int refclk = i9xx_pll_refclk(dev, pipe_config); |
79e53945 JB |
8876 | |
8877 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
293623f7 | 8878 | fp = pipe_config->dpll_hw_state.fp0; |
79e53945 | 8879 | else |
293623f7 | 8880 | fp = pipe_config->dpll_hw_state.fp1; |
79e53945 JB |
8881 | |
8882 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
8883 | if (IS_PINEVIEW(dev)) { |
8884 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
8885 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
8886 | } else { |
8887 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
8888 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
8889 | } | |
8890 | ||
a6c45cf0 | 8891 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
8892 | if (IS_PINEVIEW(dev)) |
8893 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
8894 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
8895 | else |
8896 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
8897 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
8898 | ||
8899 | switch (dpll & DPLL_MODE_MASK) { | |
8900 | case DPLLB_MODE_DAC_SERIAL: | |
8901 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
8902 | 5 : 10; | |
8903 | break; | |
8904 | case DPLLB_MODE_LVDS: | |
8905 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
8906 | 7 : 14; | |
8907 | break; | |
8908 | default: | |
28c97730 | 8909 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 | 8910 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
f1f644dc | 8911 | return; |
79e53945 JB |
8912 | } |
8913 | ||
ac58c3f0 | 8914 | if (IS_PINEVIEW(dev)) |
da4a1efa | 8915 | pineview_clock(refclk, &clock); |
ac58c3f0 | 8916 | else |
da4a1efa | 8917 | i9xx_clock(refclk, &clock); |
79e53945 | 8918 | } else { |
0fb58223 | 8919 | u32 lvds = IS_I830(dev) ? 0 : I915_READ(LVDS); |
b1c560d1 | 8920 | bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN); |
79e53945 JB |
8921 | |
8922 | if (is_lvds) { | |
8923 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
8924 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
b1c560d1 VS |
8925 | |
8926 | if (lvds & LVDS_CLKB_POWER_UP) | |
8927 | clock.p2 = 7; | |
8928 | else | |
8929 | clock.p2 = 14; | |
79e53945 JB |
8930 | } else { |
8931 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
8932 | clock.p1 = 2; | |
8933 | else { | |
8934 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
8935 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
8936 | } | |
8937 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
8938 | clock.p2 = 4; | |
8939 | else | |
8940 | clock.p2 = 2; | |
79e53945 | 8941 | } |
da4a1efa VS |
8942 | |
8943 | i9xx_clock(refclk, &clock); | |
79e53945 JB |
8944 | } |
8945 | ||
18442d08 VS |
8946 | /* |
8947 | * This value includes pixel_multiplier. We will use | |
241bfc38 | 8948 | * port_clock to compute adjusted_mode.crtc_clock in the |
18442d08 VS |
8949 | * encoder's get_config() function. |
8950 | */ | |
8951 | pipe_config->port_clock = clock.dot; | |
f1f644dc JB |
8952 | } |
8953 | ||
6878da05 VS |
8954 | int intel_dotclock_calculate(int link_freq, |
8955 | const struct intel_link_m_n *m_n) | |
f1f644dc | 8956 | { |
f1f644dc JB |
8957 | /* |
8958 | * The calculation for the data clock is: | |
1041a02f | 8959 | * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp |
f1f644dc | 8960 | * But we want to avoid losing precison if possible, so: |
1041a02f | 8961 | * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp)) |
f1f644dc JB |
8962 | * |
8963 | * and the link clock is simpler: | |
1041a02f | 8964 | * link_clock = (m * link_clock) / n |
f1f644dc JB |
8965 | */ |
8966 | ||
6878da05 VS |
8967 | if (!m_n->link_n) |
8968 | return 0; | |
f1f644dc | 8969 | |
6878da05 VS |
8970 | return div_u64((u64)m_n->link_m * link_freq, m_n->link_n); |
8971 | } | |
f1f644dc | 8972 | |
18442d08 VS |
8973 | static void ironlake_pch_clock_get(struct intel_crtc *crtc, |
8974 | struct intel_crtc_config *pipe_config) | |
6878da05 VS |
8975 | { |
8976 | struct drm_device *dev = crtc->base.dev; | |
79e53945 | 8977 | |
18442d08 VS |
8978 | /* read out port_clock from the DPLL */ |
8979 | i9xx_crtc_clock_get(crtc, pipe_config); | |
f1f644dc | 8980 | |
f1f644dc | 8981 | /* |
18442d08 | 8982 | * This value does not include pixel_multiplier. |
241bfc38 | 8983 | * We will check that port_clock and adjusted_mode.crtc_clock |
18442d08 VS |
8984 | * agree once we know their relationship in the encoder's |
8985 | * get_config() function. | |
79e53945 | 8986 | */ |
241bfc38 | 8987 | pipe_config->adjusted_mode.crtc_clock = |
18442d08 VS |
8988 | intel_dotclock_calculate(intel_fdi_link_freq(dev) * 10000, |
8989 | &pipe_config->fdi_m_n); | |
79e53945 JB |
8990 | } |
8991 | ||
8992 | /** Returns the currently programmed mode of the given pipe. */ | |
8993 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
8994 | struct drm_crtc *crtc) | |
8995 | { | |
548f245b | 8996 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 8997 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3b117c8f | 8998 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
79e53945 | 8999 | struct drm_display_mode *mode; |
f1f644dc | 9000 | struct intel_crtc_config pipe_config; |
fe2b8f9d PZ |
9001 | int htot = I915_READ(HTOTAL(cpu_transcoder)); |
9002 | int hsync = I915_READ(HSYNC(cpu_transcoder)); | |
9003 | int vtot = I915_READ(VTOTAL(cpu_transcoder)); | |
9004 | int vsync = I915_READ(VSYNC(cpu_transcoder)); | |
293623f7 | 9005 | enum pipe pipe = intel_crtc->pipe; |
79e53945 JB |
9006 | |
9007 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
9008 | if (!mode) | |
9009 | return NULL; | |
9010 | ||
f1f644dc JB |
9011 | /* |
9012 | * Construct a pipe_config sufficient for getting the clock info | |
9013 | * back out of crtc_clock_get. | |
9014 | * | |
9015 | * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need | |
9016 | * to use a real value here instead. | |
9017 | */ | |
293623f7 | 9018 | pipe_config.cpu_transcoder = (enum transcoder) pipe; |
f1f644dc | 9019 | pipe_config.pixel_multiplier = 1; |
293623f7 VS |
9020 | pipe_config.dpll_hw_state.dpll = I915_READ(DPLL(pipe)); |
9021 | pipe_config.dpll_hw_state.fp0 = I915_READ(FP0(pipe)); | |
9022 | pipe_config.dpll_hw_state.fp1 = I915_READ(FP1(pipe)); | |
f1f644dc JB |
9023 | i9xx_crtc_clock_get(intel_crtc, &pipe_config); |
9024 | ||
773ae034 | 9025 | mode->clock = pipe_config.port_clock / pipe_config.pixel_multiplier; |
79e53945 JB |
9026 | mode->hdisplay = (htot & 0xffff) + 1; |
9027 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
9028 | mode->hsync_start = (hsync & 0xffff) + 1; | |
9029 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
9030 | mode->vdisplay = (vtot & 0xffff) + 1; | |
9031 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
9032 | mode->vsync_start = (vsync & 0xffff) + 1; | |
9033 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
9034 | ||
9035 | drm_mode_set_name(mode); | |
79e53945 JB |
9036 | |
9037 | return mode; | |
9038 | } | |
9039 | ||
652c393a JB |
9040 | static void intel_decrease_pllclock(struct drm_crtc *crtc) |
9041 | { | |
9042 | struct drm_device *dev = crtc->dev; | |
fbee40df | 9043 | struct drm_i915_private *dev_priv = dev->dev_private; |
652c393a | 9044 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
652c393a | 9045 | |
baff296c | 9046 | if (!HAS_GMCH_DISPLAY(dev)) |
652c393a JB |
9047 | return; |
9048 | ||
9049 | if (!dev_priv->lvds_downclock_avail) | |
9050 | return; | |
9051 | ||
9052 | /* | |
9053 | * Since this is called by a timer, we should never get here in | |
9054 | * the manual case. | |
9055 | */ | |
9056 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
dc257cf1 DV |
9057 | int pipe = intel_crtc->pipe; |
9058 | int dpll_reg = DPLL(pipe); | |
9059 | int dpll; | |
f6e5b160 | 9060 | |
44d98a61 | 9061 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a | 9062 | |
8ac5a6d5 | 9063 | assert_panel_unlocked(dev_priv, pipe); |
652c393a | 9064 | |
dc257cf1 | 9065 | dpll = I915_READ(dpll_reg); |
652c393a JB |
9066 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
9067 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 9068 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
9069 | dpll = I915_READ(dpll_reg); |
9070 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 9071 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
9072 | } |
9073 | ||
9074 | } | |
9075 | ||
f047e395 CW |
9076 | void intel_mark_busy(struct drm_device *dev) |
9077 | { | |
c67a470b PZ |
9078 | struct drm_i915_private *dev_priv = dev->dev_private; |
9079 | ||
f62a0076 CW |
9080 | if (dev_priv->mm.busy) |
9081 | return; | |
9082 | ||
43694d69 | 9083 | intel_runtime_pm_get(dev_priv); |
c67a470b | 9084 | i915_update_gfx_val(dev_priv); |
f62a0076 | 9085 | dev_priv->mm.busy = true; |
f047e395 CW |
9086 | } |
9087 | ||
9088 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 9089 | { |
c67a470b | 9090 | struct drm_i915_private *dev_priv = dev->dev_private; |
652c393a | 9091 | struct drm_crtc *crtc; |
652c393a | 9092 | |
f62a0076 CW |
9093 | if (!dev_priv->mm.busy) |
9094 | return; | |
9095 | ||
9096 | dev_priv->mm.busy = false; | |
9097 | ||
d330a953 | 9098 | if (!i915.powersave) |
bb4cdd53 | 9099 | goto out; |
652c393a | 9100 | |
70e1e0ec | 9101 | for_each_crtc(dev, crtc) { |
f4510a27 | 9102 | if (!crtc->primary->fb) |
652c393a JB |
9103 | continue; |
9104 | ||
725a5b54 | 9105 | intel_decrease_pllclock(crtc); |
652c393a | 9106 | } |
b29c19b6 | 9107 | |
3d13ef2e | 9108 | if (INTEL_INFO(dev)->gen >= 6) |
b29c19b6 | 9109 | gen6_rps_idle(dev->dev_private); |
bb4cdd53 PZ |
9110 | |
9111 | out: | |
43694d69 | 9112 | intel_runtime_pm_put(dev_priv); |
652c393a JB |
9113 | } |
9114 | ||
79e53945 JB |
9115 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
9116 | { | |
9117 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
9118 | struct drm_device *dev = crtc->dev; |
9119 | struct intel_unpin_work *work; | |
67e77c5a | 9120 | |
5e2d7afc | 9121 | spin_lock_irq(&dev->event_lock); |
67e77c5a DV |
9122 | work = intel_crtc->unpin_work; |
9123 | intel_crtc->unpin_work = NULL; | |
5e2d7afc | 9124 | spin_unlock_irq(&dev->event_lock); |
67e77c5a DV |
9125 | |
9126 | if (work) { | |
9127 | cancel_work_sync(&work->work); | |
9128 | kfree(work); | |
9129 | } | |
79e53945 JB |
9130 | |
9131 | drm_crtc_cleanup(crtc); | |
67e77c5a | 9132 | |
79e53945 JB |
9133 | kfree(intel_crtc); |
9134 | } | |
9135 | ||
6b95a207 KH |
9136 | static void intel_unpin_work_fn(struct work_struct *__work) |
9137 | { | |
9138 | struct intel_unpin_work *work = | |
9139 | container_of(__work, struct intel_unpin_work, work); | |
b4a98e57 | 9140 | struct drm_device *dev = work->crtc->dev; |
f99d7069 | 9141 | enum pipe pipe = to_intel_crtc(work->crtc)->pipe; |
6b95a207 | 9142 | |
b4a98e57 | 9143 | mutex_lock(&dev->struct_mutex); |
1690e1eb | 9144 | intel_unpin_fb_obj(work->old_fb_obj); |
05394f39 CW |
9145 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
9146 | drm_gem_object_unreference(&work->old_fb_obj->base); | |
d9e86c0e | 9147 | |
b4a98e57 CW |
9148 | intel_update_fbc(dev); |
9149 | mutex_unlock(&dev->struct_mutex); | |
9150 | ||
f99d7069 DV |
9151 | intel_frontbuffer_flip_complete(dev, INTEL_FRONTBUFFER_PRIMARY(pipe)); |
9152 | ||
b4a98e57 CW |
9153 | BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0); |
9154 | atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count); | |
9155 | ||
6b95a207 KH |
9156 | kfree(work); |
9157 | } | |
9158 | ||
1afe3e9d | 9159 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 9160 | struct drm_crtc *crtc) |
6b95a207 | 9161 | { |
6b95a207 KH |
9162 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
9163 | struct intel_unpin_work *work; | |
6b95a207 KH |
9164 | unsigned long flags; |
9165 | ||
9166 | /* Ignore early vblank irqs */ | |
9167 | if (intel_crtc == NULL) | |
9168 | return; | |
9169 | ||
f326038a DV |
9170 | /* |
9171 | * This is called both by irq handlers and the reset code (to complete | |
9172 | * lost pageflips) so needs the full irqsave spinlocks. | |
9173 | */ | |
6b95a207 KH |
9174 | spin_lock_irqsave(&dev->event_lock, flags); |
9175 | work = intel_crtc->unpin_work; | |
e7d841ca CW |
9176 | |
9177 | /* Ensure we don't miss a work->pending update ... */ | |
9178 | smp_rmb(); | |
9179 | ||
9180 | if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) { | |
6b95a207 KH |
9181 | spin_unlock_irqrestore(&dev->event_lock, flags); |
9182 | return; | |
9183 | } | |
9184 | ||
d6bbafa1 | 9185 | page_flip_completed(intel_crtc); |
0af7e4df | 9186 | |
6b95a207 | 9187 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6b95a207 KH |
9188 | } |
9189 | ||
1afe3e9d JB |
9190 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
9191 | { | |
fbee40df | 9192 | struct drm_i915_private *dev_priv = dev->dev_private; |
1afe3e9d JB |
9193 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
9194 | ||
49b14a5c | 9195 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
9196 | } |
9197 | ||
9198 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
9199 | { | |
fbee40df | 9200 | struct drm_i915_private *dev_priv = dev->dev_private; |
1afe3e9d JB |
9201 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; |
9202 | ||
49b14a5c | 9203 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
9204 | } |
9205 | ||
75f7f3ec VS |
9206 | /* Is 'a' after or equal to 'b'? */ |
9207 | static bool g4x_flip_count_after_eq(u32 a, u32 b) | |
9208 | { | |
9209 | return !((a - b) & 0x80000000); | |
9210 | } | |
9211 | ||
9212 | static bool page_flip_finished(struct intel_crtc *crtc) | |
9213 | { | |
9214 | struct drm_device *dev = crtc->base.dev; | |
9215 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9216 | ||
9217 | /* | |
9218 | * The relevant registers doen't exist on pre-ctg. | |
9219 | * As the flip done interrupt doesn't trigger for mmio | |
9220 | * flips on gmch platforms, a flip count check isn't | |
9221 | * really needed there. But since ctg has the registers, | |
9222 | * include it in the check anyway. | |
9223 | */ | |
9224 | if (INTEL_INFO(dev)->gen < 5 && !IS_G4X(dev)) | |
9225 | return true; | |
9226 | ||
9227 | /* | |
9228 | * A DSPSURFLIVE check isn't enough in case the mmio and CS flips | |
9229 | * used the same base address. In that case the mmio flip might | |
9230 | * have completed, but the CS hasn't even executed the flip yet. | |
9231 | * | |
9232 | * A flip count check isn't enough as the CS might have updated | |
9233 | * the base address just after start of vblank, but before we | |
9234 | * managed to process the interrupt. This means we'd complete the | |
9235 | * CS flip too soon. | |
9236 | * | |
9237 | * Combining both checks should get us a good enough result. It may | |
9238 | * still happen that the CS flip has been executed, but has not | |
9239 | * yet actually completed. But in case the base address is the same | |
9240 | * anyway, we don't really care. | |
9241 | */ | |
9242 | return (I915_READ(DSPSURFLIVE(crtc->plane)) & ~0xfff) == | |
9243 | crtc->unpin_work->gtt_offset && | |
9244 | g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc->pipe)), | |
9245 | crtc->unpin_work->flip_count); | |
9246 | } | |
9247 | ||
6b95a207 KH |
9248 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
9249 | { | |
fbee40df | 9250 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
9251 | struct intel_crtc *intel_crtc = |
9252 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
9253 | unsigned long flags; | |
9254 | ||
f326038a DV |
9255 | |
9256 | /* | |
9257 | * This is called both by irq handlers and the reset code (to complete | |
9258 | * lost pageflips) so needs the full irqsave spinlocks. | |
9259 | * | |
9260 | * NB: An MMIO update of the plane base pointer will also | |
e7d841ca CW |
9261 | * generate a page-flip completion irq, i.e. every modeset |
9262 | * is also accompanied by a spurious intel_prepare_page_flip(). | |
9263 | */ | |
6b95a207 | 9264 | spin_lock_irqsave(&dev->event_lock, flags); |
75f7f3ec | 9265 | if (intel_crtc->unpin_work && page_flip_finished(intel_crtc)) |
e7d841ca | 9266 | atomic_inc_not_zero(&intel_crtc->unpin_work->pending); |
6b95a207 KH |
9267 | spin_unlock_irqrestore(&dev->event_lock, flags); |
9268 | } | |
9269 | ||
eba905b2 | 9270 | static inline void intel_mark_page_flip_active(struct intel_crtc *intel_crtc) |
e7d841ca CW |
9271 | { |
9272 | /* Ensure that the work item is consistent when activating it ... */ | |
9273 | smp_wmb(); | |
9274 | atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING); | |
9275 | /* and that it is marked active as soon as the irq could fire. */ | |
9276 | smp_wmb(); | |
9277 | } | |
9278 | ||
8c9f3aaf JB |
9279 | static int intel_gen2_queue_flip(struct drm_device *dev, |
9280 | struct drm_crtc *crtc, | |
9281 | struct drm_framebuffer *fb, | |
ed8d1975 | 9282 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9283 | struct intel_engine_cs *ring, |
ed8d1975 | 9284 | uint32_t flags) |
8c9f3aaf | 9285 | { |
8c9f3aaf | 9286 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8c9f3aaf JB |
9287 | u32 flip_mask; |
9288 | int ret; | |
9289 | ||
6d90c952 | 9290 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 9291 | if (ret) |
4fa62c89 | 9292 | return ret; |
8c9f3aaf JB |
9293 | |
9294 | /* Can't queue multiple flips, so wait for the previous | |
9295 | * one to finish before executing the next. | |
9296 | */ | |
9297 | if (intel_crtc->plane) | |
9298 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
9299 | else | |
9300 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
9301 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
9302 | intel_ring_emit(ring, MI_NOOP); | |
9303 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
9304 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
9305 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 9306 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
6d90c952 | 9307 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
e7d841ca CW |
9308 | |
9309 | intel_mark_page_flip_active(intel_crtc); | |
09246732 | 9310 | __intel_ring_advance(ring); |
83d4092b | 9311 | return 0; |
8c9f3aaf JB |
9312 | } |
9313 | ||
9314 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
9315 | struct drm_crtc *crtc, | |
9316 | struct drm_framebuffer *fb, | |
ed8d1975 | 9317 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9318 | struct intel_engine_cs *ring, |
ed8d1975 | 9319 | uint32_t flags) |
8c9f3aaf | 9320 | { |
8c9f3aaf | 9321 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8c9f3aaf JB |
9322 | u32 flip_mask; |
9323 | int ret; | |
9324 | ||
6d90c952 | 9325 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 9326 | if (ret) |
4fa62c89 | 9327 | return ret; |
8c9f3aaf JB |
9328 | |
9329 | if (intel_crtc->plane) | |
9330 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
9331 | else | |
9332 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
9333 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
9334 | intel_ring_emit(ring, MI_NOOP); | |
9335 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
9336 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
9337 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 9338 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
6d90c952 DV |
9339 | intel_ring_emit(ring, MI_NOOP); |
9340 | ||
e7d841ca | 9341 | intel_mark_page_flip_active(intel_crtc); |
09246732 | 9342 | __intel_ring_advance(ring); |
83d4092b | 9343 | return 0; |
8c9f3aaf JB |
9344 | } |
9345 | ||
9346 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
9347 | struct drm_crtc *crtc, | |
9348 | struct drm_framebuffer *fb, | |
ed8d1975 | 9349 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9350 | struct intel_engine_cs *ring, |
ed8d1975 | 9351 | uint32_t flags) |
8c9f3aaf JB |
9352 | { |
9353 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9354 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9355 | uint32_t pf, pipesrc; | |
9356 | int ret; | |
9357 | ||
6d90c952 | 9358 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 9359 | if (ret) |
4fa62c89 | 9360 | return ret; |
8c9f3aaf JB |
9361 | |
9362 | /* i965+ uses the linear or tiled offsets from the | |
9363 | * Display Registers (which do not change across a page-flip) | |
9364 | * so we need only reprogram the base address. | |
9365 | */ | |
6d90c952 DV |
9366 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
9367 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
9368 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 9369 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset | |
c2c75131 | 9370 | obj->tiling_mode); |
8c9f3aaf JB |
9371 | |
9372 | /* XXX Enabling the panel-fitter across page-flip is so far | |
9373 | * untested on non-native modes, so ignore it for now. | |
9374 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
9375 | */ | |
9376 | pf = 0; | |
9377 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 | 9378 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca CW |
9379 | |
9380 | intel_mark_page_flip_active(intel_crtc); | |
09246732 | 9381 | __intel_ring_advance(ring); |
83d4092b | 9382 | return 0; |
8c9f3aaf JB |
9383 | } |
9384 | ||
9385 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
9386 | struct drm_crtc *crtc, | |
9387 | struct drm_framebuffer *fb, | |
ed8d1975 | 9388 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9389 | struct intel_engine_cs *ring, |
ed8d1975 | 9390 | uint32_t flags) |
8c9f3aaf JB |
9391 | { |
9392 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9393 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9394 | uint32_t pf, pipesrc; | |
9395 | int ret; | |
9396 | ||
6d90c952 | 9397 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 9398 | if (ret) |
4fa62c89 | 9399 | return ret; |
8c9f3aaf | 9400 | |
6d90c952 DV |
9401 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
9402 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
9403 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
75f7f3ec | 9404 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
8c9f3aaf | 9405 | |
dc257cf1 DV |
9406 | /* Contrary to the suggestions in the documentation, |
9407 | * "Enable Panel Fitter" does not seem to be required when page | |
9408 | * flipping with a non-native mode, and worse causes a normal | |
9409 | * modeset to fail. | |
9410 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
9411 | */ | |
9412 | pf = 0; | |
8c9f3aaf | 9413 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 | 9414 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca CW |
9415 | |
9416 | intel_mark_page_flip_active(intel_crtc); | |
09246732 | 9417 | __intel_ring_advance(ring); |
83d4092b | 9418 | return 0; |
8c9f3aaf JB |
9419 | } |
9420 | ||
7c9017e5 JB |
9421 | static int intel_gen7_queue_flip(struct drm_device *dev, |
9422 | struct drm_crtc *crtc, | |
9423 | struct drm_framebuffer *fb, | |
ed8d1975 | 9424 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9425 | struct intel_engine_cs *ring, |
ed8d1975 | 9426 | uint32_t flags) |
7c9017e5 | 9427 | { |
7c9017e5 | 9428 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
cb05d8de | 9429 | uint32_t plane_bit = 0; |
ffe74d75 CW |
9430 | int len, ret; |
9431 | ||
eba905b2 | 9432 | switch (intel_crtc->plane) { |
cb05d8de DV |
9433 | case PLANE_A: |
9434 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
9435 | break; | |
9436 | case PLANE_B: | |
9437 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
9438 | break; | |
9439 | case PLANE_C: | |
9440 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
9441 | break; | |
9442 | default: | |
9443 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
4fa62c89 | 9444 | return -ENODEV; |
cb05d8de DV |
9445 | } |
9446 | ||
ffe74d75 | 9447 | len = 4; |
f476828a | 9448 | if (ring->id == RCS) { |
ffe74d75 | 9449 | len += 6; |
f476828a DL |
9450 | /* |
9451 | * On Gen 8, SRM is now taking an extra dword to accommodate | |
9452 | * 48bits addresses, and we need a NOOP for the batch size to | |
9453 | * stay even. | |
9454 | */ | |
9455 | if (IS_GEN8(dev)) | |
9456 | len += 2; | |
9457 | } | |
ffe74d75 | 9458 | |
f66fab8e VS |
9459 | /* |
9460 | * BSpec MI_DISPLAY_FLIP for IVB: | |
9461 | * "The full packet must be contained within the same cache line." | |
9462 | * | |
9463 | * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same | |
9464 | * cacheline, if we ever start emitting more commands before | |
9465 | * the MI_DISPLAY_FLIP we may need to first emit everything else, | |
9466 | * then do the cacheline alignment, and finally emit the | |
9467 | * MI_DISPLAY_FLIP. | |
9468 | */ | |
9469 | ret = intel_ring_cacheline_align(ring); | |
9470 | if (ret) | |
4fa62c89 | 9471 | return ret; |
f66fab8e | 9472 | |
ffe74d75 | 9473 | ret = intel_ring_begin(ring, len); |
7c9017e5 | 9474 | if (ret) |
4fa62c89 | 9475 | return ret; |
7c9017e5 | 9476 | |
ffe74d75 CW |
9477 | /* Unmask the flip-done completion message. Note that the bspec says that |
9478 | * we should do this for both the BCS and RCS, and that we must not unmask | |
9479 | * more than one flip event at any time (or ensure that one flip message | |
9480 | * can be sent by waiting for flip-done prior to queueing new flips). | |
9481 | * Experimentation says that BCS works despite DERRMR masking all | |
9482 | * flip-done completion events and that unmasking all planes at once | |
9483 | * for the RCS also doesn't appear to drop events. Setting the DERRMR | |
9484 | * to zero does lead to lockups within MI_DISPLAY_FLIP. | |
9485 | */ | |
9486 | if (ring->id == RCS) { | |
9487 | intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); | |
9488 | intel_ring_emit(ring, DERRMR); | |
9489 | intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE | | |
9490 | DERRMR_PIPEB_PRI_FLIP_DONE | | |
9491 | DERRMR_PIPEC_PRI_FLIP_DONE)); | |
f476828a DL |
9492 | if (IS_GEN8(dev)) |
9493 | intel_ring_emit(ring, MI_STORE_REGISTER_MEM_GEN8(1) | | |
9494 | MI_SRM_LRM_GLOBAL_GTT); | |
9495 | else | |
9496 | intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1) | | |
9497 | MI_SRM_LRM_GLOBAL_GTT); | |
ffe74d75 CW |
9498 | intel_ring_emit(ring, DERRMR); |
9499 | intel_ring_emit(ring, ring->scratch.gtt_offset + 256); | |
f476828a DL |
9500 | if (IS_GEN8(dev)) { |
9501 | intel_ring_emit(ring, 0); | |
9502 | intel_ring_emit(ring, MI_NOOP); | |
9503 | } | |
ffe74d75 CW |
9504 | } |
9505 | ||
cb05d8de | 9506 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 9507 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
75f7f3ec | 9508 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
7c9017e5 | 9509 | intel_ring_emit(ring, (MI_NOOP)); |
e7d841ca CW |
9510 | |
9511 | intel_mark_page_flip_active(intel_crtc); | |
09246732 | 9512 | __intel_ring_advance(ring); |
83d4092b | 9513 | return 0; |
7c9017e5 JB |
9514 | } |
9515 | ||
84c33a64 SG |
9516 | static bool use_mmio_flip(struct intel_engine_cs *ring, |
9517 | struct drm_i915_gem_object *obj) | |
9518 | { | |
9519 | /* | |
9520 | * This is not being used for older platforms, because | |
9521 | * non-availability of flip done interrupt forces us to use | |
9522 | * CS flips. Older platforms derive flip done using some clever | |
9523 | * tricks involving the flip_pending status bits and vblank irqs. | |
9524 | * So using MMIO flips there would disrupt this mechanism. | |
9525 | */ | |
9526 | ||
8e09bf83 CW |
9527 | if (ring == NULL) |
9528 | return true; | |
9529 | ||
84c33a64 SG |
9530 | if (INTEL_INFO(ring->dev)->gen < 5) |
9531 | return false; | |
9532 | ||
9533 | if (i915.use_mmio_flip < 0) | |
9534 | return false; | |
9535 | else if (i915.use_mmio_flip > 0) | |
9536 | return true; | |
14bf993e OM |
9537 | else if (i915.enable_execlists) |
9538 | return true; | |
84c33a64 SG |
9539 | else |
9540 | return ring != obj->ring; | |
9541 | } | |
9542 | ||
9543 | static void intel_do_mmio_flip(struct intel_crtc *intel_crtc) | |
9544 | { | |
9545 | struct drm_device *dev = intel_crtc->base.dev; | |
9546 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9547 | struct intel_framebuffer *intel_fb = | |
9548 | to_intel_framebuffer(intel_crtc->base.primary->fb); | |
9549 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
9550 | u32 dspcntr; | |
9551 | u32 reg; | |
9552 | ||
9553 | intel_mark_page_flip_active(intel_crtc); | |
9554 | ||
9555 | reg = DSPCNTR(intel_crtc->plane); | |
9556 | dspcntr = I915_READ(reg); | |
9557 | ||
9558 | if (INTEL_INFO(dev)->gen >= 4) { | |
9559 | if (obj->tiling_mode != I915_TILING_NONE) | |
9560 | dspcntr |= DISPPLANE_TILED; | |
9561 | else | |
9562 | dspcntr &= ~DISPPLANE_TILED; | |
9563 | } | |
9564 | I915_WRITE(reg, dspcntr); | |
9565 | ||
9566 | I915_WRITE(DSPSURF(intel_crtc->plane), | |
9567 | intel_crtc->unpin_work->gtt_offset); | |
9568 | POSTING_READ(DSPSURF(intel_crtc->plane)); | |
9569 | } | |
9570 | ||
9571 | static int intel_postpone_flip(struct drm_i915_gem_object *obj) | |
9572 | { | |
9573 | struct intel_engine_cs *ring; | |
9574 | int ret; | |
9575 | ||
9576 | lockdep_assert_held(&obj->base.dev->struct_mutex); | |
9577 | ||
9578 | if (!obj->last_write_seqno) | |
9579 | return 0; | |
9580 | ||
9581 | ring = obj->ring; | |
9582 | ||
9583 | if (i915_seqno_passed(ring->get_seqno(ring, true), | |
9584 | obj->last_write_seqno)) | |
9585 | return 0; | |
9586 | ||
9587 | ret = i915_gem_check_olr(ring, obj->last_write_seqno); | |
9588 | if (ret) | |
9589 | return ret; | |
9590 | ||
9591 | if (WARN_ON(!ring->irq_get(ring))) | |
9592 | return 0; | |
9593 | ||
9594 | return 1; | |
9595 | } | |
9596 | ||
9597 | void intel_notify_mmio_flip(struct intel_engine_cs *ring) | |
9598 | { | |
9599 | struct drm_i915_private *dev_priv = to_i915(ring->dev); | |
9600 | struct intel_crtc *intel_crtc; | |
9601 | unsigned long irq_flags; | |
9602 | u32 seqno; | |
9603 | ||
9604 | seqno = ring->get_seqno(ring, false); | |
9605 | ||
9606 | spin_lock_irqsave(&dev_priv->mmio_flip_lock, irq_flags); | |
9607 | for_each_intel_crtc(ring->dev, intel_crtc) { | |
9608 | struct intel_mmio_flip *mmio_flip; | |
9609 | ||
9610 | mmio_flip = &intel_crtc->mmio_flip; | |
9611 | if (mmio_flip->seqno == 0) | |
9612 | continue; | |
9613 | ||
9614 | if (ring->id != mmio_flip->ring_id) | |
9615 | continue; | |
9616 | ||
9617 | if (i915_seqno_passed(seqno, mmio_flip->seqno)) { | |
9618 | intel_do_mmio_flip(intel_crtc); | |
9619 | mmio_flip->seqno = 0; | |
9620 | ring->irq_put(ring); | |
9621 | } | |
9622 | } | |
9623 | spin_unlock_irqrestore(&dev_priv->mmio_flip_lock, irq_flags); | |
9624 | } | |
9625 | ||
9626 | static int intel_queue_mmio_flip(struct drm_device *dev, | |
9627 | struct drm_crtc *crtc, | |
9628 | struct drm_framebuffer *fb, | |
9629 | struct drm_i915_gem_object *obj, | |
9630 | struct intel_engine_cs *ring, | |
9631 | uint32_t flags) | |
9632 | { | |
9633 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9634 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
84c33a64 SG |
9635 | int ret; |
9636 | ||
9637 | if (WARN_ON(intel_crtc->mmio_flip.seqno)) | |
9638 | return -EBUSY; | |
9639 | ||
9640 | ret = intel_postpone_flip(obj); | |
9641 | if (ret < 0) | |
9642 | return ret; | |
9643 | if (ret == 0) { | |
9644 | intel_do_mmio_flip(intel_crtc); | |
9645 | return 0; | |
9646 | } | |
9647 | ||
24955f24 | 9648 | spin_lock_irq(&dev_priv->mmio_flip_lock); |
84c33a64 SG |
9649 | intel_crtc->mmio_flip.seqno = obj->last_write_seqno; |
9650 | intel_crtc->mmio_flip.ring_id = obj->ring->id; | |
24955f24 | 9651 | spin_unlock_irq(&dev_priv->mmio_flip_lock); |
84c33a64 SG |
9652 | |
9653 | /* | |
9654 | * Double check to catch cases where irq fired before | |
9655 | * mmio flip data was ready | |
9656 | */ | |
9657 | intel_notify_mmio_flip(obj->ring); | |
9658 | return 0; | |
9659 | } | |
9660 | ||
8c9f3aaf JB |
9661 | static int intel_default_queue_flip(struct drm_device *dev, |
9662 | struct drm_crtc *crtc, | |
9663 | struct drm_framebuffer *fb, | |
ed8d1975 | 9664 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9665 | struct intel_engine_cs *ring, |
ed8d1975 | 9666 | uint32_t flags) |
8c9f3aaf JB |
9667 | { |
9668 | return -ENODEV; | |
9669 | } | |
9670 | ||
d6bbafa1 CW |
9671 | static bool __intel_pageflip_stall_check(struct drm_device *dev, |
9672 | struct drm_crtc *crtc) | |
9673 | { | |
9674 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9675 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9676 | struct intel_unpin_work *work = intel_crtc->unpin_work; | |
9677 | u32 addr; | |
9678 | ||
9679 | if (atomic_read(&work->pending) >= INTEL_FLIP_COMPLETE) | |
9680 | return true; | |
9681 | ||
9682 | if (!work->enable_stall_check) | |
9683 | return false; | |
9684 | ||
9685 | if (work->flip_ready_vblank == 0) { | |
9686 | if (work->flip_queued_ring && | |
9687 | !i915_seqno_passed(work->flip_queued_ring->get_seqno(work->flip_queued_ring, true), | |
9688 | work->flip_queued_seqno)) | |
9689 | return false; | |
9690 | ||
9691 | work->flip_ready_vblank = drm_vblank_count(dev, intel_crtc->pipe); | |
9692 | } | |
9693 | ||
9694 | if (drm_vblank_count(dev, intel_crtc->pipe) - work->flip_ready_vblank < 3) | |
9695 | return false; | |
9696 | ||
9697 | /* Potential stall - if we see that the flip has happened, | |
9698 | * assume a missed interrupt. */ | |
9699 | if (INTEL_INFO(dev)->gen >= 4) | |
9700 | addr = I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc->plane))); | |
9701 | else | |
9702 | addr = I915_READ(DSPADDR(intel_crtc->plane)); | |
9703 | ||
9704 | /* There is a potential issue here with a false positive after a flip | |
9705 | * to the same address. We could address this by checking for a | |
9706 | * non-incrementing frame counter. | |
9707 | */ | |
9708 | return addr == work->gtt_offset; | |
9709 | } | |
9710 | ||
9711 | void intel_check_page_flip(struct drm_device *dev, int pipe) | |
9712 | { | |
9713 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9714 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
9715 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
f326038a DV |
9716 | |
9717 | WARN_ON(!in_irq()); | |
d6bbafa1 CW |
9718 | |
9719 | if (crtc == NULL) | |
9720 | return; | |
9721 | ||
f326038a | 9722 | spin_lock(&dev->event_lock); |
d6bbafa1 CW |
9723 | if (intel_crtc->unpin_work && __intel_pageflip_stall_check(dev, crtc)) { |
9724 | WARN_ONCE(1, "Kicking stuck page flip: queued at %d, now %d\n", | |
9725 | intel_crtc->unpin_work->flip_queued_vblank, drm_vblank_count(dev, pipe)); | |
9726 | page_flip_completed(intel_crtc); | |
9727 | } | |
f326038a | 9728 | spin_unlock(&dev->event_lock); |
d6bbafa1 CW |
9729 | } |
9730 | ||
6b95a207 KH |
9731 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
9732 | struct drm_framebuffer *fb, | |
ed8d1975 KP |
9733 | struct drm_pending_vblank_event *event, |
9734 | uint32_t page_flip_flags) | |
6b95a207 KH |
9735 | { |
9736 | struct drm_device *dev = crtc->dev; | |
9737 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f4510a27 | 9738 | struct drm_framebuffer *old_fb = crtc->primary->fb; |
2ff8fde1 | 9739 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
6b95a207 | 9740 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
a071fa00 | 9741 | enum pipe pipe = intel_crtc->pipe; |
6b95a207 | 9742 | struct intel_unpin_work *work; |
a4872ba6 | 9743 | struct intel_engine_cs *ring; |
52e68630 | 9744 | int ret; |
6b95a207 | 9745 | |
2ff8fde1 MR |
9746 | /* |
9747 | * drm_mode_page_flip_ioctl() should already catch this, but double | |
9748 | * check to be safe. In the future we may enable pageflipping from | |
9749 | * a disabled primary plane. | |
9750 | */ | |
9751 | if (WARN_ON(intel_fb_obj(old_fb) == NULL)) | |
9752 | return -EBUSY; | |
9753 | ||
e6a595d2 | 9754 | /* Can't change pixel format via MI display flips. */ |
f4510a27 | 9755 | if (fb->pixel_format != crtc->primary->fb->pixel_format) |
e6a595d2 VS |
9756 | return -EINVAL; |
9757 | ||
9758 | /* | |
9759 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
9760 | * Note that pitch changes could also affect these register. | |
9761 | */ | |
9762 | if (INTEL_INFO(dev)->gen > 3 && | |
f4510a27 MR |
9763 | (fb->offsets[0] != crtc->primary->fb->offsets[0] || |
9764 | fb->pitches[0] != crtc->primary->fb->pitches[0])) | |
e6a595d2 VS |
9765 | return -EINVAL; |
9766 | ||
f900db47 CW |
9767 | if (i915_terminally_wedged(&dev_priv->gpu_error)) |
9768 | goto out_hang; | |
9769 | ||
b14c5679 | 9770 | work = kzalloc(sizeof(*work), GFP_KERNEL); |
6b95a207 KH |
9771 | if (work == NULL) |
9772 | return -ENOMEM; | |
9773 | ||
6b95a207 | 9774 | work->event = event; |
b4a98e57 | 9775 | work->crtc = crtc; |
2ff8fde1 | 9776 | work->old_fb_obj = intel_fb_obj(old_fb); |
6b95a207 KH |
9777 | INIT_WORK(&work->work, intel_unpin_work_fn); |
9778 | ||
87b6b101 | 9779 | ret = drm_crtc_vblank_get(crtc); |
7317c75e JB |
9780 | if (ret) |
9781 | goto free_work; | |
9782 | ||
6b95a207 | 9783 | /* We borrow the event spin lock for protecting unpin_work */ |
5e2d7afc | 9784 | spin_lock_irq(&dev->event_lock); |
6b95a207 | 9785 | if (intel_crtc->unpin_work) { |
d6bbafa1 CW |
9786 | /* Before declaring the flip queue wedged, check if |
9787 | * the hardware completed the operation behind our backs. | |
9788 | */ | |
9789 | if (__intel_pageflip_stall_check(dev, crtc)) { | |
9790 | DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n"); | |
9791 | page_flip_completed(intel_crtc); | |
9792 | } else { | |
9793 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
5e2d7afc | 9794 | spin_unlock_irq(&dev->event_lock); |
468f0b44 | 9795 | |
d6bbafa1 CW |
9796 | drm_crtc_vblank_put(crtc); |
9797 | kfree(work); | |
9798 | return -EBUSY; | |
9799 | } | |
6b95a207 KH |
9800 | } |
9801 | intel_crtc->unpin_work = work; | |
5e2d7afc | 9802 | spin_unlock_irq(&dev->event_lock); |
6b95a207 | 9803 | |
b4a98e57 CW |
9804 | if (atomic_read(&intel_crtc->unpin_work_count) >= 2) |
9805 | flush_workqueue(dev_priv->wq); | |
9806 | ||
79158103 CW |
9807 | ret = i915_mutex_lock_interruptible(dev); |
9808 | if (ret) | |
9809 | goto cleanup; | |
6b95a207 | 9810 | |
75dfca80 | 9811 | /* Reference the objects for the scheduled work. */ |
05394f39 CW |
9812 | drm_gem_object_reference(&work->old_fb_obj->base); |
9813 | drm_gem_object_reference(&obj->base); | |
6b95a207 | 9814 | |
f4510a27 | 9815 | crtc->primary->fb = fb; |
96b099fd | 9816 | |
e1f99ce6 | 9817 | work->pending_flip_obj = obj; |
e1f99ce6 | 9818 | |
b4a98e57 | 9819 | atomic_inc(&intel_crtc->unpin_work_count); |
10d83730 | 9820 | intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
e1f99ce6 | 9821 | |
75f7f3ec | 9822 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) |
a071fa00 | 9823 | work->flip_count = I915_READ(PIPE_FLIPCOUNT_GM45(pipe)) + 1; |
75f7f3ec | 9824 | |
4fa62c89 VS |
9825 | if (IS_VALLEYVIEW(dev)) { |
9826 | ring = &dev_priv->ring[BCS]; | |
8e09bf83 CW |
9827 | if (obj->tiling_mode != work->old_fb_obj->tiling_mode) |
9828 | /* vlv: DISPLAY_FLIP fails to change tiling */ | |
9829 | ring = NULL; | |
2a92d5bc CW |
9830 | } else if (IS_IVYBRIDGE(dev)) { |
9831 | ring = &dev_priv->ring[BCS]; | |
4fa62c89 VS |
9832 | } else if (INTEL_INFO(dev)->gen >= 7) { |
9833 | ring = obj->ring; | |
9834 | if (ring == NULL || ring->id != RCS) | |
9835 | ring = &dev_priv->ring[BCS]; | |
9836 | } else { | |
9837 | ring = &dev_priv->ring[RCS]; | |
9838 | } | |
9839 | ||
9840 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); | |
8c9f3aaf JB |
9841 | if (ret) |
9842 | goto cleanup_pending; | |
6b95a207 | 9843 | |
4fa62c89 VS |
9844 | work->gtt_offset = |
9845 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset; | |
9846 | ||
d6bbafa1 | 9847 | if (use_mmio_flip(ring, obj)) { |
84c33a64 SG |
9848 | ret = intel_queue_mmio_flip(dev, crtc, fb, obj, ring, |
9849 | page_flip_flags); | |
d6bbafa1 CW |
9850 | if (ret) |
9851 | goto cleanup_unpin; | |
9852 | ||
9853 | work->flip_queued_seqno = obj->last_write_seqno; | |
9854 | work->flip_queued_ring = obj->ring; | |
9855 | } else { | |
84c33a64 | 9856 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, ring, |
d6bbafa1 CW |
9857 | page_flip_flags); |
9858 | if (ret) | |
9859 | goto cleanup_unpin; | |
9860 | ||
9861 | work->flip_queued_seqno = intel_ring_get_seqno(ring); | |
9862 | work->flip_queued_ring = ring; | |
9863 | } | |
9864 | ||
9865 | work->flip_queued_vblank = drm_vblank_count(dev, intel_crtc->pipe); | |
9866 | work->enable_stall_check = true; | |
4fa62c89 | 9867 | |
a071fa00 DV |
9868 | i915_gem_track_fb(work->old_fb_obj, obj, |
9869 | INTEL_FRONTBUFFER_PRIMARY(pipe)); | |
9870 | ||
7782de3b | 9871 | intel_disable_fbc(dev); |
f99d7069 | 9872 | intel_frontbuffer_flip_prepare(dev, INTEL_FRONTBUFFER_PRIMARY(pipe)); |
6b95a207 KH |
9873 | mutex_unlock(&dev->struct_mutex); |
9874 | ||
e5510fac JB |
9875 | trace_i915_flip_request(intel_crtc->plane, obj); |
9876 | ||
6b95a207 | 9877 | return 0; |
96b099fd | 9878 | |
4fa62c89 VS |
9879 | cleanup_unpin: |
9880 | intel_unpin_fb_obj(obj); | |
8c9f3aaf | 9881 | cleanup_pending: |
b4a98e57 | 9882 | atomic_dec(&intel_crtc->unpin_work_count); |
f4510a27 | 9883 | crtc->primary->fb = old_fb; |
05394f39 CW |
9884 | drm_gem_object_unreference(&work->old_fb_obj->base); |
9885 | drm_gem_object_unreference(&obj->base); | |
96b099fd CW |
9886 | mutex_unlock(&dev->struct_mutex); |
9887 | ||
79158103 | 9888 | cleanup: |
5e2d7afc | 9889 | spin_lock_irq(&dev->event_lock); |
96b099fd | 9890 | intel_crtc->unpin_work = NULL; |
5e2d7afc | 9891 | spin_unlock_irq(&dev->event_lock); |
96b099fd | 9892 | |
87b6b101 | 9893 | drm_crtc_vblank_put(crtc); |
7317c75e | 9894 | free_work: |
96b099fd CW |
9895 | kfree(work); |
9896 | ||
f900db47 CW |
9897 | if (ret == -EIO) { |
9898 | out_hang: | |
9899 | intel_crtc_wait_for_pending_flips(crtc); | |
9900 | ret = intel_pipe_set_base(crtc, crtc->x, crtc->y, fb); | |
f0d3dad3 | 9901 | if (ret == 0 && event) { |
5e2d7afc | 9902 | spin_lock_irq(&dev->event_lock); |
a071fa00 | 9903 | drm_send_vblank_event(dev, pipe, event); |
5e2d7afc | 9904 | spin_unlock_irq(&dev->event_lock); |
f0d3dad3 | 9905 | } |
f900db47 | 9906 | } |
96b099fd | 9907 | return ret; |
6b95a207 KH |
9908 | } |
9909 | ||
f6e5b160 | 9910 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 CW |
9911 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
9912 | .load_lut = intel_crtc_load_lut, | |
f6e5b160 CW |
9913 | }; |
9914 | ||
9a935856 DV |
9915 | /** |
9916 | * intel_modeset_update_staged_output_state | |
9917 | * | |
9918 | * Updates the staged output configuration state, e.g. after we've read out the | |
9919 | * current hw state. | |
9920 | */ | |
9921 | static void intel_modeset_update_staged_output_state(struct drm_device *dev) | |
f6e5b160 | 9922 | { |
7668851f | 9923 | struct intel_crtc *crtc; |
9a935856 DV |
9924 | struct intel_encoder *encoder; |
9925 | struct intel_connector *connector; | |
f6e5b160 | 9926 | |
9a935856 DV |
9927 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
9928 | base.head) { | |
9929 | connector->new_encoder = | |
9930 | to_intel_encoder(connector->base.encoder); | |
9931 | } | |
f6e5b160 | 9932 | |
b2784e15 | 9933 | for_each_intel_encoder(dev, encoder) { |
9a935856 DV |
9934 | encoder->new_crtc = |
9935 | to_intel_crtc(encoder->base.crtc); | |
9936 | } | |
7668851f | 9937 | |
d3fcc808 | 9938 | for_each_intel_crtc(dev, crtc) { |
7668851f | 9939 | crtc->new_enabled = crtc->base.enabled; |
7bd0a8e7 VS |
9940 | |
9941 | if (crtc->new_enabled) | |
9942 | crtc->new_config = &crtc->config; | |
9943 | else | |
9944 | crtc->new_config = NULL; | |
7668851f | 9945 | } |
f6e5b160 CW |
9946 | } |
9947 | ||
9a935856 DV |
9948 | /** |
9949 | * intel_modeset_commit_output_state | |
9950 | * | |
9951 | * This function copies the stage display pipe configuration to the real one. | |
9952 | */ | |
9953 | static void intel_modeset_commit_output_state(struct drm_device *dev) | |
9954 | { | |
7668851f | 9955 | struct intel_crtc *crtc; |
9a935856 DV |
9956 | struct intel_encoder *encoder; |
9957 | struct intel_connector *connector; | |
f6e5b160 | 9958 | |
9a935856 DV |
9959 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
9960 | base.head) { | |
9961 | connector->base.encoder = &connector->new_encoder->base; | |
9962 | } | |
f6e5b160 | 9963 | |
b2784e15 | 9964 | for_each_intel_encoder(dev, encoder) { |
9a935856 DV |
9965 | encoder->base.crtc = &encoder->new_crtc->base; |
9966 | } | |
7668851f | 9967 | |
d3fcc808 | 9968 | for_each_intel_crtc(dev, crtc) { |
7668851f VS |
9969 | crtc->base.enabled = crtc->new_enabled; |
9970 | } | |
9a935856 DV |
9971 | } |
9972 | ||
050f7aeb | 9973 | static void |
eba905b2 | 9974 | connected_sink_compute_bpp(struct intel_connector *connector, |
050f7aeb DV |
9975 | struct intel_crtc_config *pipe_config) |
9976 | { | |
9977 | int bpp = pipe_config->pipe_bpp; | |
9978 | ||
9979 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n", | |
9980 | connector->base.base.id, | |
c23cc417 | 9981 | connector->base.name); |
050f7aeb DV |
9982 | |
9983 | /* Don't use an invalid EDID bpc value */ | |
9984 | if (connector->base.display_info.bpc && | |
9985 | connector->base.display_info.bpc * 3 < bpp) { | |
9986 | DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n", | |
9987 | bpp, connector->base.display_info.bpc*3); | |
9988 | pipe_config->pipe_bpp = connector->base.display_info.bpc*3; | |
9989 | } | |
9990 | ||
9991 | /* Clamp bpp to 8 on screens without EDID 1.4 */ | |
9992 | if (connector->base.display_info.bpc == 0 && bpp > 24) { | |
9993 | DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n", | |
9994 | bpp); | |
9995 | pipe_config->pipe_bpp = 24; | |
9996 | } | |
9997 | } | |
9998 | ||
4e53c2e0 | 9999 | static int |
050f7aeb DV |
10000 | compute_baseline_pipe_bpp(struct intel_crtc *crtc, |
10001 | struct drm_framebuffer *fb, | |
10002 | struct intel_crtc_config *pipe_config) | |
4e53c2e0 | 10003 | { |
050f7aeb DV |
10004 | struct drm_device *dev = crtc->base.dev; |
10005 | struct intel_connector *connector; | |
4e53c2e0 DV |
10006 | int bpp; |
10007 | ||
d42264b1 DV |
10008 | switch (fb->pixel_format) { |
10009 | case DRM_FORMAT_C8: | |
4e53c2e0 DV |
10010 | bpp = 8*3; /* since we go through a colormap */ |
10011 | break; | |
d42264b1 DV |
10012 | case DRM_FORMAT_XRGB1555: |
10013 | case DRM_FORMAT_ARGB1555: | |
10014 | /* checked in intel_framebuffer_init already */ | |
10015 | if (WARN_ON(INTEL_INFO(dev)->gen > 3)) | |
10016 | return -EINVAL; | |
10017 | case DRM_FORMAT_RGB565: | |
4e53c2e0 DV |
10018 | bpp = 6*3; /* min is 18bpp */ |
10019 | break; | |
d42264b1 DV |
10020 | case DRM_FORMAT_XBGR8888: |
10021 | case DRM_FORMAT_ABGR8888: | |
10022 | /* checked in intel_framebuffer_init already */ | |
10023 | if (WARN_ON(INTEL_INFO(dev)->gen < 4)) | |
10024 | return -EINVAL; | |
10025 | case DRM_FORMAT_XRGB8888: | |
10026 | case DRM_FORMAT_ARGB8888: | |
4e53c2e0 DV |
10027 | bpp = 8*3; |
10028 | break; | |
d42264b1 DV |
10029 | case DRM_FORMAT_XRGB2101010: |
10030 | case DRM_FORMAT_ARGB2101010: | |
10031 | case DRM_FORMAT_XBGR2101010: | |
10032 | case DRM_FORMAT_ABGR2101010: | |
10033 | /* checked in intel_framebuffer_init already */ | |
10034 | if (WARN_ON(INTEL_INFO(dev)->gen < 4)) | |
baba133a | 10035 | return -EINVAL; |
4e53c2e0 DV |
10036 | bpp = 10*3; |
10037 | break; | |
baba133a | 10038 | /* TODO: gen4+ supports 16 bpc floating point, too. */ |
4e53c2e0 DV |
10039 | default: |
10040 | DRM_DEBUG_KMS("unsupported depth\n"); | |
10041 | return -EINVAL; | |
10042 | } | |
10043 | ||
4e53c2e0 DV |
10044 | pipe_config->pipe_bpp = bpp; |
10045 | ||
10046 | /* Clamp display bpp to EDID value */ | |
10047 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
050f7aeb | 10048 | base.head) { |
1b829e05 DV |
10049 | if (!connector->new_encoder || |
10050 | connector->new_encoder->new_crtc != crtc) | |
4e53c2e0 DV |
10051 | continue; |
10052 | ||
050f7aeb | 10053 | connected_sink_compute_bpp(connector, pipe_config); |
4e53c2e0 DV |
10054 | } |
10055 | ||
10056 | return bpp; | |
10057 | } | |
10058 | ||
644db711 DV |
10059 | static void intel_dump_crtc_timings(const struct drm_display_mode *mode) |
10060 | { | |
10061 | DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, " | |
10062 | "type: 0x%x flags: 0x%x\n", | |
1342830c | 10063 | mode->crtc_clock, |
644db711 DV |
10064 | mode->crtc_hdisplay, mode->crtc_hsync_start, |
10065 | mode->crtc_hsync_end, mode->crtc_htotal, | |
10066 | mode->crtc_vdisplay, mode->crtc_vsync_start, | |
10067 | mode->crtc_vsync_end, mode->crtc_vtotal, mode->type, mode->flags); | |
10068 | } | |
10069 | ||
c0b03411 DV |
10070 | static void intel_dump_pipe_config(struct intel_crtc *crtc, |
10071 | struct intel_crtc_config *pipe_config, | |
10072 | const char *context) | |
10073 | { | |
10074 | DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id, | |
10075 | context, pipe_name(crtc->pipe)); | |
10076 | ||
10077 | DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder)); | |
10078 | DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n", | |
10079 | pipe_config->pipe_bpp, pipe_config->dither); | |
10080 | DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", | |
10081 | pipe_config->has_pch_encoder, | |
10082 | pipe_config->fdi_lanes, | |
10083 | pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n, | |
10084 | pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n, | |
10085 | pipe_config->fdi_m_n.tu); | |
eb14cb74 VS |
10086 | DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", |
10087 | pipe_config->has_dp_encoder, | |
10088 | pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n, | |
10089 | pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n, | |
10090 | pipe_config->dp_m_n.tu); | |
b95af8be VK |
10091 | |
10092 | DRM_DEBUG_KMS("dp: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n", | |
10093 | pipe_config->has_dp_encoder, | |
10094 | pipe_config->dp_m2_n2.gmch_m, | |
10095 | pipe_config->dp_m2_n2.gmch_n, | |
10096 | pipe_config->dp_m2_n2.link_m, | |
10097 | pipe_config->dp_m2_n2.link_n, | |
10098 | pipe_config->dp_m2_n2.tu); | |
10099 | ||
c0b03411 DV |
10100 | DRM_DEBUG_KMS("requested mode:\n"); |
10101 | drm_mode_debug_printmodeline(&pipe_config->requested_mode); | |
10102 | DRM_DEBUG_KMS("adjusted mode:\n"); | |
10103 | drm_mode_debug_printmodeline(&pipe_config->adjusted_mode); | |
644db711 | 10104 | intel_dump_crtc_timings(&pipe_config->adjusted_mode); |
d71b8d4a | 10105 | DRM_DEBUG_KMS("port clock: %d\n", pipe_config->port_clock); |
37327abd VS |
10106 | DRM_DEBUG_KMS("pipe src size: %dx%d\n", |
10107 | pipe_config->pipe_src_w, pipe_config->pipe_src_h); | |
c0b03411 DV |
10108 | DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n", |
10109 | pipe_config->gmch_pfit.control, | |
10110 | pipe_config->gmch_pfit.pgm_ratios, | |
10111 | pipe_config->gmch_pfit.lvds_border_bits); | |
fd4daa9c | 10112 | DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n", |
c0b03411 | 10113 | pipe_config->pch_pfit.pos, |
fd4daa9c CW |
10114 | pipe_config->pch_pfit.size, |
10115 | pipe_config->pch_pfit.enabled ? "enabled" : "disabled"); | |
42db64ef | 10116 | DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled); |
cf532bb2 | 10117 | DRM_DEBUG_KMS("double wide: %i\n", pipe_config->double_wide); |
c0b03411 DV |
10118 | } |
10119 | ||
bc079e8b VS |
10120 | static bool encoders_cloneable(const struct intel_encoder *a, |
10121 | const struct intel_encoder *b) | |
accfc0c5 | 10122 | { |
bc079e8b VS |
10123 | /* masks could be asymmetric, so check both ways */ |
10124 | return a == b || (a->cloneable & (1 << b->type) && | |
10125 | b->cloneable & (1 << a->type)); | |
10126 | } | |
10127 | ||
10128 | static bool check_single_encoder_cloning(struct intel_crtc *crtc, | |
10129 | struct intel_encoder *encoder) | |
10130 | { | |
10131 | struct drm_device *dev = crtc->base.dev; | |
10132 | struct intel_encoder *source_encoder; | |
10133 | ||
b2784e15 | 10134 | for_each_intel_encoder(dev, source_encoder) { |
bc079e8b VS |
10135 | if (source_encoder->new_crtc != crtc) |
10136 | continue; | |
10137 | ||
10138 | if (!encoders_cloneable(encoder, source_encoder)) | |
10139 | return false; | |
10140 | } | |
10141 | ||
10142 | return true; | |
10143 | } | |
10144 | ||
10145 | static bool check_encoder_cloning(struct intel_crtc *crtc) | |
10146 | { | |
10147 | struct drm_device *dev = crtc->base.dev; | |
accfc0c5 DV |
10148 | struct intel_encoder *encoder; |
10149 | ||
b2784e15 | 10150 | for_each_intel_encoder(dev, encoder) { |
bc079e8b | 10151 | if (encoder->new_crtc != crtc) |
accfc0c5 DV |
10152 | continue; |
10153 | ||
bc079e8b VS |
10154 | if (!check_single_encoder_cloning(crtc, encoder)) |
10155 | return false; | |
accfc0c5 DV |
10156 | } |
10157 | ||
bc079e8b | 10158 | return true; |
accfc0c5 DV |
10159 | } |
10160 | ||
b8cecdf5 DV |
10161 | static struct intel_crtc_config * |
10162 | intel_modeset_pipe_config(struct drm_crtc *crtc, | |
4e53c2e0 | 10163 | struct drm_framebuffer *fb, |
b8cecdf5 | 10164 | struct drm_display_mode *mode) |
ee7b9f93 | 10165 | { |
7758a113 | 10166 | struct drm_device *dev = crtc->dev; |
7758a113 | 10167 | struct intel_encoder *encoder; |
b8cecdf5 | 10168 | struct intel_crtc_config *pipe_config; |
e29c22c0 DV |
10169 | int plane_bpp, ret = -EINVAL; |
10170 | bool retry = true; | |
ee7b9f93 | 10171 | |
bc079e8b | 10172 | if (!check_encoder_cloning(to_intel_crtc(crtc))) { |
accfc0c5 DV |
10173 | DRM_DEBUG_KMS("rejecting invalid cloning configuration\n"); |
10174 | return ERR_PTR(-EINVAL); | |
10175 | } | |
10176 | ||
b8cecdf5 DV |
10177 | pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL); |
10178 | if (!pipe_config) | |
7758a113 DV |
10179 | return ERR_PTR(-ENOMEM); |
10180 | ||
b8cecdf5 DV |
10181 | drm_mode_copy(&pipe_config->adjusted_mode, mode); |
10182 | drm_mode_copy(&pipe_config->requested_mode, mode); | |
37327abd | 10183 | |
e143a21c DV |
10184 | pipe_config->cpu_transcoder = |
10185 | (enum transcoder) to_intel_crtc(crtc)->pipe; | |
c0d43d62 | 10186 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
b8cecdf5 | 10187 | |
2960bc9c ID |
10188 | /* |
10189 | * Sanitize sync polarity flags based on requested ones. If neither | |
10190 | * positive or negative polarity is requested, treat this as meaning | |
10191 | * negative polarity. | |
10192 | */ | |
10193 | if (!(pipe_config->adjusted_mode.flags & | |
10194 | (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC))) | |
10195 | pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC; | |
10196 | ||
10197 | if (!(pipe_config->adjusted_mode.flags & | |
10198 | (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC))) | |
10199 | pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC; | |
10200 | ||
050f7aeb DV |
10201 | /* Compute a starting value for pipe_config->pipe_bpp taking the source |
10202 | * plane pixel format and any sink constraints into account. Returns the | |
10203 | * source plane bpp so that dithering can be selected on mismatches | |
10204 | * after encoders and crtc also have had their say. */ | |
10205 | plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc), | |
10206 | fb, pipe_config); | |
4e53c2e0 DV |
10207 | if (plane_bpp < 0) |
10208 | goto fail; | |
10209 | ||
e41a56be VS |
10210 | /* |
10211 | * Determine the real pipe dimensions. Note that stereo modes can | |
10212 | * increase the actual pipe size due to the frame doubling and | |
10213 | * insertion of additional space for blanks between the frame. This | |
10214 | * is stored in the crtc timings. We use the requested mode to do this | |
10215 | * computation to clearly distinguish it from the adjusted mode, which | |
10216 | * can be changed by the connectors in the below retry loop. | |
10217 | */ | |
10218 | drm_mode_set_crtcinfo(&pipe_config->requested_mode, CRTC_STEREO_DOUBLE); | |
10219 | pipe_config->pipe_src_w = pipe_config->requested_mode.crtc_hdisplay; | |
10220 | pipe_config->pipe_src_h = pipe_config->requested_mode.crtc_vdisplay; | |
10221 | ||
e29c22c0 | 10222 | encoder_retry: |
ef1b460d | 10223 | /* Ensure the port clock defaults are reset when retrying. */ |
ff9a6750 | 10224 | pipe_config->port_clock = 0; |
ef1b460d | 10225 | pipe_config->pixel_multiplier = 1; |
ff9a6750 | 10226 | |
135c81b8 | 10227 | /* Fill in default crtc timings, allow encoders to overwrite them. */ |
6ce70f5e | 10228 | drm_mode_set_crtcinfo(&pipe_config->adjusted_mode, CRTC_STEREO_DOUBLE); |
135c81b8 | 10229 | |
7758a113 DV |
10230 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
10231 | * adjust it according to limitations or connector properties, and also | |
10232 | * a chance to reject the mode entirely. | |
47f1c6c9 | 10233 | */ |
b2784e15 | 10234 | for_each_intel_encoder(dev, encoder) { |
47f1c6c9 | 10235 | |
7758a113 DV |
10236 | if (&encoder->new_crtc->base != crtc) |
10237 | continue; | |
7ae89233 | 10238 | |
efea6e8e DV |
10239 | if (!(encoder->compute_config(encoder, pipe_config))) { |
10240 | DRM_DEBUG_KMS("Encoder config failure\n"); | |
7758a113 DV |
10241 | goto fail; |
10242 | } | |
ee7b9f93 | 10243 | } |
47f1c6c9 | 10244 | |
ff9a6750 DV |
10245 | /* Set default port clock if not overwritten by the encoder. Needs to be |
10246 | * done afterwards in case the encoder adjusts the mode. */ | |
10247 | if (!pipe_config->port_clock) | |
241bfc38 DL |
10248 | pipe_config->port_clock = pipe_config->adjusted_mode.crtc_clock |
10249 | * pipe_config->pixel_multiplier; | |
ff9a6750 | 10250 | |
a43f6e0f | 10251 | ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config); |
e29c22c0 | 10252 | if (ret < 0) { |
7758a113 DV |
10253 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
10254 | goto fail; | |
ee7b9f93 | 10255 | } |
e29c22c0 DV |
10256 | |
10257 | if (ret == RETRY) { | |
10258 | if (WARN(!retry, "loop in pipe configuration computation\n")) { | |
10259 | ret = -EINVAL; | |
10260 | goto fail; | |
10261 | } | |
10262 | ||
10263 | DRM_DEBUG_KMS("CRTC bw constrained, retrying\n"); | |
10264 | retry = false; | |
10265 | goto encoder_retry; | |
10266 | } | |
10267 | ||
4e53c2e0 DV |
10268 | pipe_config->dither = pipe_config->pipe_bpp != plane_bpp; |
10269 | DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n", | |
10270 | plane_bpp, pipe_config->pipe_bpp, pipe_config->dither); | |
10271 | ||
b8cecdf5 | 10272 | return pipe_config; |
7758a113 | 10273 | fail: |
b8cecdf5 | 10274 | kfree(pipe_config); |
e29c22c0 | 10275 | return ERR_PTR(ret); |
ee7b9f93 | 10276 | } |
47f1c6c9 | 10277 | |
e2e1ed41 DV |
10278 | /* Computes which crtcs are affected and sets the relevant bits in the mask. For |
10279 | * simplicity we use the crtc's pipe number (because it's easier to obtain). */ | |
10280 | static void | |
10281 | intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes, | |
10282 | unsigned *prepare_pipes, unsigned *disable_pipes) | |
79e53945 JB |
10283 | { |
10284 | struct intel_crtc *intel_crtc; | |
e2e1ed41 DV |
10285 | struct drm_device *dev = crtc->dev; |
10286 | struct intel_encoder *encoder; | |
10287 | struct intel_connector *connector; | |
10288 | struct drm_crtc *tmp_crtc; | |
79e53945 | 10289 | |
e2e1ed41 | 10290 | *disable_pipes = *modeset_pipes = *prepare_pipes = 0; |
79e53945 | 10291 | |
e2e1ed41 DV |
10292 | /* Check which crtcs have changed outputs connected to them, these need |
10293 | * to be part of the prepare_pipes mask. We don't (yet) support global | |
10294 | * modeset across multiple crtcs, so modeset_pipes will only have one | |
10295 | * bit set at most. */ | |
10296 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
10297 | base.head) { | |
10298 | if (connector->base.encoder == &connector->new_encoder->base) | |
10299 | continue; | |
79e53945 | 10300 | |
e2e1ed41 DV |
10301 | if (connector->base.encoder) { |
10302 | tmp_crtc = connector->base.encoder->crtc; | |
10303 | ||
10304 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
10305 | } | |
10306 | ||
10307 | if (connector->new_encoder) | |
10308 | *prepare_pipes |= | |
10309 | 1 << connector->new_encoder->new_crtc->pipe; | |
79e53945 JB |
10310 | } |
10311 | ||
b2784e15 | 10312 | for_each_intel_encoder(dev, encoder) { |
e2e1ed41 DV |
10313 | if (encoder->base.crtc == &encoder->new_crtc->base) |
10314 | continue; | |
10315 | ||
10316 | if (encoder->base.crtc) { | |
10317 | tmp_crtc = encoder->base.crtc; | |
10318 | ||
10319 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
10320 | } | |
10321 | ||
10322 | if (encoder->new_crtc) | |
10323 | *prepare_pipes |= 1 << encoder->new_crtc->pipe; | |
80824003 JB |
10324 | } |
10325 | ||
7668851f | 10326 | /* Check for pipes that will be enabled/disabled ... */ |
d3fcc808 | 10327 | for_each_intel_crtc(dev, intel_crtc) { |
7668851f | 10328 | if (intel_crtc->base.enabled == intel_crtc->new_enabled) |
e2e1ed41 | 10329 | continue; |
7e7d76c3 | 10330 | |
7668851f | 10331 | if (!intel_crtc->new_enabled) |
e2e1ed41 | 10332 | *disable_pipes |= 1 << intel_crtc->pipe; |
7668851f VS |
10333 | else |
10334 | *prepare_pipes |= 1 << intel_crtc->pipe; | |
7e7d76c3 JB |
10335 | } |
10336 | ||
e2e1ed41 DV |
10337 | |
10338 | /* set_mode is also used to update properties on life display pipes. */ | |
10339 | intel_crtc = to_intel_crtc(crtc); | |
7668851f | 10340 | if (intel_crtc->new_enabled) |
e2e1ed41 DV |
10341 | *prepare_pipes |= 1 << intel_crtc->pipe; |
10342 | ||
b6c5164d DV |
10343 | /* |
10344 | * For simplicity do a full modeset on any pipe where the output routing | |
10345 | * changed. We could be more clever, but that would require us to be | |
10346 | * more careful with calling the relevant encoder->mode_set functions. | |
10347 | */ | |
e2e1ed41 DV |
10348 | if (*prepare_pipes) |
10349 | *modeset_pipes = *prepare_pipes; | |
10350 | ||
10351 | /* ... and mask these out. */ | |
10352 | *modeset_pipes &= ~(*disable_pipes); | |
10353 | *prepare_pipes &= ~(*disable_pipes); | |
b6c5164d DV |
10354 | |
10355 | /* | |
10356 | * HACK: We don't (yet) fully support global modesets. intel_set_config | |
10357 | * obies this rule, but the modeset restore mode of | |
10358 | * intel_modeset_setup_hw_state does not. | |
10359 | */ | |
10360 | *modeset_pipes &= 1 << intel_crtc->pipe; | |
10361 | *prepare_pipes &= 1 << intel_crtc->pipe; | |
e3641d3f DV |
10362 | |
10363 | DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n", | |
10364 | *modeset_pipes, *prepare_pipes, *disable_pipes); | |
47f1c6c9 | 10365 | } |
79e53945 | 10366 | |
ea9d758d | 10367 | static bool intel_crtc_in_use(struct drm_crtc *crtc) |
f6e5b160 | 10368 | { |
ea9d758d | 10369 | struct drm_encoder *encoder; |
f6e5b160 | 10370 | struct drm_device *dev = crtc->dev; |
f6e5b160 | 10371 | |
ea9d758d DV |
10372 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
10373 | if (encoder->crtc == crtc) | |
10374 | return true; | |
10375 | ||
10376 | return false; | |
10377 | } | |
10378 | ||
10379 | static void | |
10380 | intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes) | |
10381 | { | |
10382 | struct intel_encoder *intel_encoder; | |
10383 | struct intel_crtc *intel_crtc; | |
10384 | struct drm_connector *connector; | |
10385 | ||
b2784e15 | 10386 | for_each_intel_encoder(dev, intel_encoder) { |
ea9d758d DV |
10387 | if (!intel_encoder->base.crtc) |
10388 | continue; | |
10389 | ||
10390 | intel_crtc = to_intel_crtc(intel_encoder->base.crtc); | |
10391 | ||
10392 | if (prepare_pipes & (1 << intel_crtc->pipe)) | |
10393 | intel_encoder->connectors_active = false; | |
10394 | } | |
10395 | ||
10396 | intel_modeset_commit_output_state(dev); | |
10397 | ||
7668851f | 10398 | /* Double check state. */ |
d3fcc808 | 10399 | for_each_intel_crtc(dev, intel_crtc) { |
7668851f | 10400 | WARN_ON(intel_crtc->base.enabled != intel_crtc_in_use(&intel_crtc->base)); |
7bd0a8e7 VS |
10401 | WARN_ON(intel_crtc->new_config && |
10402 | intel_crtc->new_config != &intel_crtc->config); | |
10403 | WARN_ON(intel_crtc->base.enabled != !!intel_crtc->new_config); | |
ea9d758d DV |
10404 | } |
10405 | ||
10406 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
10407 | if (!connector->encoder || !connector->encoder->crtc) | |
10408 | continue; | |
10409 | ||
10410 | intel_crtc = to_intel_crtc(connector->encoder->crtc); | |
10411 | ||
10412 | if (prepare_pipes & (1 << intel_crtc->pipe)) { | |
68d34720 DV |
10413 | struct drm_property *dpms_property = |
10414 | dev->mode_config.dpms_property; | |
10415 | ||
ea9d758d | 10416 | connector->dpms = DRM_MODE_DPMS_ON; |
662595df | 10417 | drm_object_property_set_value(&connector->base, |
68d34720 DV |
10418 | dpms_property, |
10419 | DRM_MODE_DPMS_ON); | |
ea9d758d DV |
10420 | |
10421 | intel_encoder = to_intel_encoder(connector->encoder); | |
10422 | intel_encoder->connectors_active = true; | |
10423 | } | |
10424 | } | |
10425 | ||
10426 | } | |
10427 | ||
3bd26263 | 10428 | static bool intel_fuzzy_clock_check(int clock1, int clock2) |
f1f644dc | 10429 | { |
3bd26263 | 10430 | int diff; |
f1f644dc JB |
10431 | |
10432 | if (clock1 == clock2) | |
10433 | return true; | |
10434 | ||
10435 | if (!clock1 || !clock2) | |
10436 | return false; | |
10437 | ||
10438 | diff = abs(clock1 - clock2); | |
10439 | ||
10440 | if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105) | |
10441 | return true; | |
10442 | ||
10443 | return false; | |
10444 | } | |
10445 | ||
25c5b266 DV |
10446 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
10447 | list_for_each_entry((intel_crtc), \ | |
10448 | &(dev)->mode_config.crtc_list, \ | |
10449 | base.head) \ | |
0973f18f | 10450 | if (mask & (1 <<(intel_crtc)->pipe)) |
25c5b266 | 10451 | |
0e8ffe1b | 10452 | static bool |
2fa2fe9a DV |
10453 | intel_pipe_config_compare(struct drm_device *dev, |
10454 | struct intel_crtc_config *current_config, | |
0e8ffe1b DV |
10455 | struct intel_crtc_config *pipe_config) |
10456 | { | |
66e985c0 DV |
10457 | #define PIPE_CONF_CHECK_X(name) \ |
10458 | if (current_config->name != pipe_config->name) { \ | |
10459 | DRM_ERROR("mismatch in " #name " " \ | |
10460 | "(expected 0x%08x, found 0x%08x)\n", \ | |
10461 | current_config->name, \ | |
10462 | pipe_config->name); \ | |
10463 | return false; \ | |
10464 | } | |
10465 | ||
08a24034 DV |
10466 | #define PIPE_CONF_CHECK_I(name) \ |
10467 | if (current_config->name != pipe_config->name) { \ | |
10468 | DRM_ERROR("mismatch in " #name " " \ | |
10469 | "(expected %i, found %i)\n", \ | |
10470 | current_config->name, \ | |
10471 | pipe_config->name); \ | |
10472 | return false; \ | |
88adfff1 DV |
10473 | } |
10474 | ||
b95af8be VK |
10475 | /* This is required for BDW+ where there is only one set of registers for |
10476 | * switching between high and low RR. | |
10477 | * This macro can be used whenever a comparison has to be made between one | |
10478 | * hw state and multiple sw state variables. | |
10479 | */ | |
10480 | #define PIPE_CONF_CHECK_I_ALT(name, alt_name) \ | |
10481 | if ((current_config->name != pipe_config->name) && \ | |
10482 | (current_config->alt_name != pipe_config->name)) { \ | |
10483 | DRM_ERROR("mismatch in " #name " " \ | |
10484 | "(expected %i or %i, found %i)\n", \ | |
10485 | current_config->name, \ | |
10486 | current_config->alt_name, \ | |
10487 | pipe_config->name); \ | |
10488 | return false; \ | |
10489 | } | |
10490 | ||
1bd1bd80 DV |
10491 | #define PIPE_CONF_CHECK_FLAGS(name, mask) \ |
10492 | if ((current_config->name ^ pipe_config->name) & (mask)) { \ | |
6f02488e | 10493 | DRM_ERROR("mismatch in " #name "(" #mask ") " \ |
1bd1bd80 DV |
10494 | "(expected %i, found %i)\n", \ |
10495 | current_config->name & (mask), \ | |
10496 | pipe_config->name & (mask)); \ | |
10497 | return false; \ | |
10498 | } | |
10499 | ||
5e550656 VS |
10500 | #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \ |
10501 | if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \ | |
10502 | DRM_ERROR("mismatch in " #name " " \ | |
10503 | "(expected %i, found %i)\n", \ | |
10504 | current_config->name, \ | |
10505 | pipe_config->name); \ | |
10506 | return false; \ | |
10507 | } | |
10508 | ||
bb760063 DV |
10509 | #define PIPE_CONF_QUIRK(quirk) \ |
10510 | ((current_config->quirks | pipe_config->quirks) & (quirk)) | |
10511 | ||
eccb140b DV |
10512 | PIPE_CONF_CHECK_I(cpu_transcoder); |
10513 | ||
08a24034 DV |
10514 | PIPE_CONF_CHECK_I(has_pch_encoder); |
10515 | PIPE_CONF_CHECK_I(fdi_lanes); | |
72419203 DV |
10516 | PIPE_CONF_CHECK_I(fdi_m_n.gmch_m); |
10517 | PIPE_CONF_CHECK_I(fdi_m_n.gmch_n); | |
10518 | PIPE_CONF_CHECK_I(fdi_m_n.link_m); | |
10519 | PIPE_CONF_CHECK_I(fdi_m_n.link_n); | |
10520 | PIPE_CONF_CHECK_I(fdi_m_n.tu); | |
08a24034 | 10521 | |
eb14cb74 | 10522 | PIPE_CONF_CHECK_I(has_dp_encoder); |
b95af8be VK |
10523 | |
10524 | if (INTEL_INFO(dev)->gen < 8) { | |
10525 | PIPE_CONF_CHECK_I(dp_m_n.gmch_m); | |
10526 | PIPE_CONF_CHECK_I(dp_m_n.gmch_n); | |
10527 | PIPE_CONF_CHECK_I(dp_m_n.link_m); | |
10528 | PIPE_CONF_CHECK_I(dp_m_n.link_n); | |
10529 | PIPE_CONF_CHECK_I(dp_m_n.tu); | |
10530 | ||
10531 | if (current_config->has_drrs) { | |
10532 | PIPE_CONF_CHECK_I(dp_m2_n2.gmch_m); | |
10533 | PIPE_CONF_CHECK_I(dp_m2_n2.gmch_n); | |
10534 | PIPE_CONF_CHECK_I(dp_m2_n2.link_m); | |
10535 | PIPE_CONF_CHECK_I(dp_m2_n2.link_n); | |
10536 | PIPE_CONF_CHECK_I(dp_m2_n2.tu); | |
10537 | } | |
10538 | } else { | |
10539 | PIPE_CONF_CHECK_I_ALT(dp_m_n.gmch_m, dp_m2_n2.gmch_m); | |
10540 | PIPE_CONF_CHECK_I_ALT(dp_m_n.gmch_n, dp_m2_n2.gmch_n); | |
10541 | PIPE_CONF_CHECK_I_ALT(dp_m_n.link_m, dp_m2_n2.link_m); | |
10542 | PIPE_CONF_CHECK_I_ALT(dp_m_n.link_n, dp_m2_n2.link_n); | |
10543 | PIPE_CONF_CHECK_I_ALT(dp_m_n.tu, dp_m2_n2.tu); | |
10544 | } | |
eb14cb74 | 10545 | |
1bd1bd80 DV |
10546 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay); |
10547 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal); | |
10548 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start); | |
10549 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end); | |
10550 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start); | |
10551 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end); | |
10552 | ||
10553 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay); | |
10554 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal); | |
10555 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start); | |
10556 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end); | |
10557 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start); | |
10558 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end); | |
10559 | ||
c93f54cf | 10560 | PIPE_CONF_CHECK_I(pixel_multiplier); |
6897b4b5 | 10561 | PIPE_CONF_CHECK_I(has_hdmi_sink); |
b5a9fa09 DV |
10562 | if ((INTEL_INFO(dev)->gen < 8 && !IS_HASWELL(dev)) || |
10563 | IS_VALLEYVIEW(dev)) | |
10564 | PIPE_CONF_CHECK_I(limited_color_range); | |
6c49f241 | 10565 | |
9ed109a7 DV |
10566 | PIPE_CONF_CHECK_I(has_audio); |
10567 | ||
1bd1bd80 DV |
10568 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, |
10569 | DRM_MODE_FLAG_INTERLACE); | |
10570 | ||
bb760063 DV |
10571 | if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) { |
10572 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
10573 | DRM_MODE_FLAG_PHSYNC); | |
10574 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
10575 | DRM_MODE_FLAG_NHSYNC); | |
10576 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
10577 | DRM_MODE_FLAG_PVSYNC); | |
10578 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
10579 | DRM_MODE_FLAG_NVSYNC); | |
10580 | } | |
045ac3b5 | 10581 | |
37327abd VS |
10582 | PIPE_CONF_CHECK_I(pipe_src_w); |
10583 | PIPE_CONF_CHECK_I(pipe_src_h); | |
1bd1bd80 | 10584 | |
9953599b DV |
10585 | /* |
10586 | * FIXME: BIOS likes to set up a cloned config with lvds+external | |
10587 | * screen. Since we don't yet re-compute the pipe config when moving | |
10588 | * just the lvds port away to another pipe the sw tracking won't match. | |
10589 | * | |
10590 | * Proper atomic modesets with recomputed global state will fix this. | |
10591 | * Until then just don't check gmch state for inherited modes. | |
10592 | */ | |
10593 | if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE)) { | |
10594 | PIPE_CONF_CHECK_I(gmch_pfit.control); | |
10595 | /* pfit ratios are autocomputed by the hw on gen4+ */ | |
10596 | if (INTEL_INFO(dev)->gen < 4) | |
10597 | PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios); | |
10598 | PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits); | |
10599 | } | |
10600 | ||
fd4daa9c CW |
10601 | PIPE_CONF_CHECK_I(pch_pfit.enabled); |
10602 | if (current_config->pch_pfit.enabled) { | |
10603 | PIPE_CONF_CHECK_I(pch_pfit.pos); | |
10604 | PIPE_CONF_CHECK_I(pch_pfit.size); | |
10605 | } | |
2fa2fe9a | 10606 | |
e59150dc JB |
10607 | /* BDW+ don't expose a synchronous way to read the state */ |
10608 | if (IS_HASWELL(dev)) | |
10609 | PIPE_CONF_CHECK_I(ips_enabled); | |
42db64ef | 10610 | |
282740f7 VS |
10611 | PIPE_CONF_CHECK_I(double_wide); |
10612 | ||
26804afd DV |
10613 | PIPE_CONF_CHECK_X(ddi_pll_sel); |
10614 | ||
c0d43d62 | 10615 | PIPE_CONF_CHECK_I(shared_dpll); |
66e985c0 | 10616 | PIPE_CONF_CHECK_X(dpll_hw_state.dpll); |
8bcc2795 | 10617 | PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md); |
66e985c0 DV |
10618 | PIPE_CONF_CHECK_X(dpll_hw_state.fp0); |
10619 | PIPE_CONF_CHECK_X(dpll_hw_state.fp1); | |
d452c5b6 | 10620 | PIPE_CONF_CHECK_X(dpll_hw_state.wrpll); |
c0d43d62 | 10621 | |
42571aef VS |
10622 | if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) |
10623 | PIPE_CONF_CHECK_I(pipe_bpp); | |
10624 | ||
a9a7e98a JB |
10625 | PIPE_CONF_CHECK_CLOCK_FUZZY(adjusted_mode.crtc_clock); |
10626 | PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock); | |
5e550656 | 10627 | |
66e985c0 | 10628 | #undef PIPE_CONF_CHECK_X |
08a24034 | 10629 | #undef PIPE_CONF_CHECK_I |
b95af8be | 10630 | #undef PIPE_CONF_CHECK_I_ALT |
1bd1bd80 | 10631 | #undef PIPE_CONF_CHECK_FLAGS |
5e550656 | 10632 | #undef PIPE_CONF_CHECK_CLOCK_FUZZY |
bb760063 | 10633 | #undef PIPE_CONF_QUIRK |
88adfff1 | 10634 | |
0e8ffe1b DV |
10635 | return true; |
10636 | } | |
10637 | ||
91d1b4bd DV |
10638 | static void |
10639 | check_connector_state(struct drm_device *dev) | |
8af6cf88 | 10640 | { |
8af6cf88 DV |
10641 | struct intel_connector *connector; |
10642 | ||
10643 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
10644 | base.head) { | |
10645 | /* This also checks the encoder/connector hw state with the | |
10646 | * ->get_hw_state callbacks. */ | |
10647 | intel_connector_check_state(connector); | |
10648 | ||
10649 | WARN(&connector->new_encoder->base != connector->base.encoder, | |
10650 | "connector's staged encoder doesn't match current encoder\n"); | |
10651 | } | |
91d1b4bd DV |
10652 | } |
10653 | ||
10654 | static void | |
10655 | check_encoder_state(struct drm_device *dev) | |
10656 | { | |
10657 | struct intel_encoder *encoder; | |
10658 | struct intel_connector *connector; | |
8af6cf88 | 10659 | |
b2784e15 | 10660 | for_each_intel_encoder(dev, encoder) { |
8af6cf88 DV |
10661 | bool enabled = false; |
10662 | bool active = false; | |
10663 | enum pipe pipe, tracked_pipe; | |
10664 | ||
10665 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", | |
10666 | encoder->base.base.id, | |
8e329a03 | 10667 | encoder->base.name); |
8af6cf88 DV |
10668 | |
10669 | WARN(&encoder->new_crtc->base != encoder->base.crtc, | |
10670 | "encoder's stage crtc doesn't match current crtc\n"); | |
10671 | WARN(encoder->connectors_active && !encoder->base.crtc, | |
10672 | "encoder's active_connectors set, but no crtc\n"); | |
10673 | ||
10674 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
10675 | base.head) { | |
10676 | if (connector->base.encoder != &encoder->base) | |
10677 | continue; | |
10678 | enabled = true; | |
10679 | if (connector->base.dpms != DRM_MODE_DPMS_OFF) | |
10680 | active = true; | |
10681 | } | |
0e32b39c DA |
10682 | /* |
10683 | * for MST connectors if we unplug the connector is gone | |
10684 | * away but the encoder is still connected to a crtc | |
10685 | * until a modeset happens in response to the hotplug. | |
10686 | */ | |
10687 | if (!enabled && encoder->base.encoder_type == DRM_MODE_ENCODER_DPMST) | |
10688 | continue; | |
10689 | ||
8af6cf88 DV |
10690 | WARN(!!encoder->base.crtc != enabled, |
10691 | "encoder's enabled state mismatch " | |
10692 | "(expected %i, found %i)\n", | |
10693 | !!encoder->base.crtc, enabled); | |
10694 | WARN(active && !encoder->base.crtc, | |
10695 | "active encoder with no crtc\n"); | |
10696 | ||
10697 | WARN(encoder->connectors_active != active, | |
10698 | "encoder's computed active state doesn't match tracked active state " | |
10699 | "(expected %i, found %i)\n", active, encoder->connectors_active); | |
10700 | ||
10701 | active = encoder->get_hw_state(encoder, &pipe); | |
10702 | WARN(active != encoder->connectors_active, | |
10703 | "encoder's hw state doesn't match sw tracking " | |
10704 | "(expected %i, found %i)\n", | |
10705 | encoder->connectors_active, active); | |
10706 | ||
10707 | if (!encoder->base.crtc) | |
10708 | continue; | |
10709 | ||
10710 | tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe; | |
10711 | WARN(active && pipe != tracked_pipe, | |
10712 | "active encoder's pipe doesn't match" | |
10713 | "(expected %i, found %i)\n", | |
10714 | tracked_pipe, pipe); | |
10715 | ||
10716 | } | |
91d1b4bd DV |
10717 | } |
10718 | ||
10719 | static void | |
10720 | check_crtc_state(struct drm_device *dev) | |
10721 | { | |
fbee40df | 10722 | struct drm_i915_private *dev_priv = dev->dev_private; |
91d1b4bd DV |
10723 | struct intel_crtc *crtc; |
10724 | struct intel_encoder *encoder; | |
10725 | struct intel_crtc_config pipe_config; | |
8af6cf88 | 10726 | |
d3fcc808 | 10727 | for_each_intel_crtc(dev, crtc) { |
8af6cf88 DV |
10728 | bool enabled = false; |
10729 | bool active = false; | |
10730 | ||
045ac3b5 JB |
10731 | memset(&pipe_config, 0, sizeof(pipe_config)); |
10732 | ||
8af6cf88 DV |
10733 | DRM_DEBUG_KMS("[CRTC:%d]\n", |
10734 | crtc->base.base.id); | |
10735 | ||
10736 | WARN(crtc->active && !crtc->base.enabled, | |
10737 | "active crtc, but not enabled in sw tracking\n"); | |
10738 | ||
b2784e15 | 10739 | for_each_intel_encoder(dev, encoder) { |
8af6cf88 DV |
10740 | if (encoder->base.crtc != &crtc->base) |
10741 | continue; | |
10742 | enabled = true; | |
10743 | if (encoder->connectors_active) | |
10744 | active = true; | |
10745 | } | |
6c49f241 | 10746 | |
8af6cf88 DV |
10747 | WARN(active != crtc->active, |
10748 | "crtc's computed active state doesn't match tracked active state " | |
10749 | "(expected %i, found %i)\n", active, crtc->active); | |
10750 | WARN(enabled != crtc->base.enabled, | |
10751 | "crtc's computed enabled state doesn't match tracked enabled state " | |
10752 | "(expected %i, found %i)\n", enabled, crtc->base.enabled); | |
10753 | ||
0e8ffe1b DV |
10754 | active = dev_priv->display.get_pipe_config(crtc, |
10755 | &pipe_config); | |
d62cf62a | 10756 | |
b6b5d049 VS |
10757 | /* hw state is inconsistent with the pipe quirk */ |
10758 | if ((crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
10759 | (crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
d62cf62a DV |
10760 | active = crtc->active; |
10761 | ||
b2784e15 | 10762 | for_each_intel_encoder(dev, encoder) { |
3eaba51c | 10763 | enum pipe pipe; |
6c49f241 DV |
10764 | if (encoder->base.crtc != &crtc->base) |
10765 | continue; | |
1d37b689 | 10766 | if (encoder->get_hw_state(encoder, &pipe)) |
6c49f241 DV |
10767 | encoder->get_config(encoder, &pipe_config); |
10768 | } | |
10769 | ||
0e8ffe1b DV |
10770 | WARN(crtc->active != active, |
10771 | "crtc active state doesn't match with hw state " | |
10772 | "(expected %i, found %i)\n", crtc->active, active); | |
10773 | ||
c0b03411 DV |
10774 | if (active && |
10775 | !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) { | |
10776 | WARN(1, "pipe state doesn't match!\n"); | |
10777 | intel_dump_pipe_config(crtc, &pipe_config, | |
10778 | "[hw state]"); | |
10779 | intel_dump_pipe_config(crtc, &crtc->config, | |
10780 | "[sw state]"); | |
10781 | } | |
8af6cf88 DV |
10782 | } |
10783 | } | |
10784 | ||
91d1b4bd DV |
10785 | static void |
10786 | check_shared_dpll_state(struct drm_device *dev) | |
10787 | { | |
fbee40df | 10788 | struct drm_i915_private *dev_priv = dev->dev_private; |
91d1b4bd DV |
10789 | struct intel_crtc *crtc; |
10790 | struct intel_dpll_hw_state dpll_hw_state; | |
10791 | int i; | |
5358901f DV |
10792 | |
10793 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { | |
10794 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
10795 | int enabled_crtcs = 0, active_crtcs = 0; | |
10796 | bool active; | |
10797 | ||
10798 | memset(&dpll_hw_state, 0, sizeof(dpll_hw_state)); | |
10799 | ||
10800 | DRM_DEBUG_KMS("%s\n", pll->name); | |
10801 | ||
10802 | active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state); | |
10803 | ||
10804 | WARN(pll->active > pll->refcount, | |
10805 | "more active pll users than references: %i vs %i\n", | |
10806 | pll->active, pll->refcount); | |
10807 | WARN(pll->active && !pll->on, | |
10808 | "pll in active use but not on in sw tracking\n"); | |
35c95375 DV |
10809 | WARN(pll->on && !pll->active, |
10810 | "pll in on but not on in use in sw tracking\n"); | |
5358901f DV |
10811 | WARN(pll->on != active, |
10812 | "pll on state mismatch (expected %i, found %i)\n", | |
10813 | pll->on, active); | |
10814 | ||
d3fcc808 | 10815 | for_each_intel_crtc(dev, crtc) { |
5358901f DV |
10816 | if (crtc->base.enabled && intel_crtc_to_shared_dpll(crtc) == pll) |
10817 | enabled_crtcs++; | |
10818 | if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll) | |
10819 | active_crtcs++; | |
10820 | } | |
10821 | WARN(pll->active != active_crtcs, | |
10822 | "pll active crtcs mismatch (expected %i, found %i)\n", | |
10823 | pll->active, active_crtcs); | |
10824 | WARN(pll->refcount != enabled_crtcs, | |
10825 | "pll enabled crtcs mismatch (expected %i, found %i)\n", | |
10826 | pll->refcount, enabled_crtcs); | |
66e985c0 DV |
10827 | |
10828 | WARN(pll->on && memcmp(&pll->hw_state, &dpll_hw_state, | |
10829 | sizeof(dpll_hw_state)), | |
10830 | "pll hw state mismatch\n"); | |
5358901f | 10831 | } |
8af6cf88 DV |
10832 | } |
10833 | ||
91d1b4bd DV |
10834 | void |
10835 | intel_modeset_check_state(struct drm_device *dev) | |
10836 | { | |
10837 | check_connector_state(dev); | |
10838 | check_encoder_state(dev); | |
10839 | check_crtc_state(dev); | |
10840 | check_shared_dpll_state(dev); | |
10841 | } | |
10842 | ||
18442d08 VS |
10843 | void ironlake_check_encoder_dotclock(const struct intel_crtc_config *pipe_config, |
10844 | int dotclock) | |
10845 | { | |
10846 | /* | |
10847 | * FDI already provided one idea for the dotclock. | |
10848 | * Yell if the encoder disagrees. | |
10849 | */ | |
241bfc38 | 10850 | WARN(!intel_fuzzy_clock_check(pipe_config->adjusted_mode.crtc_clock, dotclock), |
18442d08 | 10851 | "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n", |
241bfc38 | 10852 | pipe_config->adjusted_mode.crtc_clock, dotclock); |
18442d08 VS |
10853 | } |
10854 | ||
80715b2f VS |
10855 | static void update_scanline_offset(struct intel_crtc *crtc) |
10856 | { | |
10857 | struct drm_device *dev = crtc->base.dev; | |
10858 | ||
10859 | /* | |
10860 | * The scanline counter increments at the leading edge of hsync. | |
10861 | * | |
10862 | * On most platforms it starts counting from vtotal-1 on the | |
10863 | * first active line. That means the scanline counter value is | |
10864 | * always one less than what we would expect. Ie. just after | |
10865 | * start of vblank, which also occurs at start of hsync (on the | |
10866 | * last active line), the scanline counter will read vblank_start-1. | |
10867 | * | |
10868 | * On gen2 the scanline counter starts counting from 1 instead | |
10869 | * of vtotal-1, so we have to subtract one (or rather add vtotal-1 | |
10870 | * to keep the value positive), instead of adding one. | |
10871 | * | |
10872 | * On HSW+ the behaviour of the scanline counter depends on the output | |
10873 | * type. For DP ports it behaves like most other platforms, but on HDMI | |
10874 | * there's an extra 1 line difference. So we need to add two instead of | |
10875 | * one to the value. | |
10876 | */ | |
10877 | if (IS_GEN2(dev)) { | |
10878 | const struct drm_display_mode *mode = &crtc->config.adjusted_mode; | |
10879 | int vtotal; | |
10880 | ||
10881 | vtotal = mode->crtc_vtotal; | |
10882 | if (mode->flags & DRM_MODE_FLAG_INTERLACE) | |
10883 | vtotal /= 2; | |
10884 | ||
10885 | crtc->scanline_offset = vtotal - 1; | |
10886 | } else if (HAS_DDI(dev) && | |
10887 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI)) { | |
10888 | crtc->scanline_offset = 2; | |
10889 | } else | |
10890 | crtc->scanline_offset = 1; | |
10891 | } | |
10892 | ||
f30da187 DV |
10893 | static int __intel_set_mode(struct drm_crtc *crtc, |
10894 | struct drm_display_mode *mode, | |
10895 | int x, int y, struct drm_framebuffer *fb) | |
a6778b3c DV |
10896 | { |
10897 | struct drm_device *dev = crtc->dev; | |
fbee40df | 10898 | struct drm_i915_private *dev_priv = dev->dev_private; |
4b4b9238 | 10899 | struct drm_display_mode *saved_mode; |
b8cecdf5 | 10900 | struct intel_crtc_config *pipe_config = NULL; |
25c5b266 DV |
10901 | struct intel_crtc *intel_crtc; |
10902 | unsigned disable_pipes, prepare_pipes, modeset_pipes; | |
c0c36b94 | 10903 | int ret = 0; |
a6778b3c | 10904 | |
4b4b9238 | 10905 | saved_mode = kmalloc(sizeof(*saved_mode), GFP_KERNEL); |
c0c36b94 CW |
10906 | if (!saved_mode) |
10907 | return -ENOMEM; | |
a6778b3c | 10908 | |
e2e1ed41 | 10909 | intel_modeset_affected_pipes(crtc, &modeset_pipes, |
25c5b266 DV |
10910 | &prepare_pipes, &disable_pipes); |
10911 | ||
3ac18232 | 10912 | *saved_mode = crtc->mode; |
a6778b3c | 10913 | |
25c5b266 DV |
10914 | /* Hack: Because we don't (yet) support global modeset on multiple |
10915 | * crtcs, we don't keep track of the new mode for more than one crtc. | |
10916 | * Hence simply check whether any bit is set in modeset_pipes in all the | |
10917 | * pieces of code that are not yet converted to deal with mutliple crtcs | |
10918 | * changing their mode at the same time. */ | |
25c5b266 | 10919 | if (modeset_pipes) { |
4e53c2e0 | 10920 | pipe_config = intel_modeset_pipe_config(crtc, fb, mode); |
b8cecdf5 DV |
10921 | if (IS_ERR(pipe_config)) { |
10922 | ret = PTR_ERR(pipe_config); | |
10923 | pipe_config = NULL; | |
10924 | ||
3ac18232 | 10925 | goto out; |
25c5b266 | 10926 | } |
c0b03411 DV |
10927 | intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config, |
10928 | "[modeset]"); | |
50741abc | 10929 | to_intel_crtc(crtc)->new_config = pipe_config; |
25c5b266 | 10930 | } |
a6778b3c | 10931 | |
30a970c6 JB |
10932 | /* |
10933 | * See if the config requires any additional preparation, e.g. | |
10934 | * to adjust global state with pipes off. We need to do this | |
10935 | * here so we can get the modeset_pipe updated config for the new | |
10936 | * mode set on this crtc. For other crtcs we need to use the | |
10937 | * adjusted_mode bits in the crtc directly. | |
10938 | */ | |
c164f833 | 10939 | if (IS_VALLEYVIEW(dev)) { |
2f2d7aa1 | 10940 | valleyview_modeset_global_pipes(dev, &prepare_pipes); |
30a970c6 | 10941 | |
c164f833 VS |
10942 | /* may have added more to prepare_pipes than we should */ |
10943 | prepare_pipes &= ~disable_pipes; | |
10944 | } | |
10945 | ||
460da916 DV |
10946 | for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) |
10947 | intel_crtc_disable(&intel_crtc->base); | |
10948 | ||
ea9d758d DV |
10949 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) { |
10950 | if (intel_crtc->base.enabled) | |
10951 | dev_priv->display.crtc_disable(&intel_crtc->base); | |
10952 | } | |
a6778b3c | 10953 | |
6c4c86f5 DV |
10954 | /* crtc->mode is already used by the ->mode_set callbacks, hence we need |
10955 | * to set it here already despite that we pass it down the callchain. | |
f6e5b160 | 10956 | */ |
b8cecdf5 | 10957 | if (modeset_pipes) { |
25c5b266 | 10958 | crtc->mode = *mode; |
b8cecdf5 DV |
10959 | /* mode_set/enable/disable functions rely on a correct pipe |
10960 | * config. */ | |
10961 | to_intel_crtc(crtc)->config = *pipe_config; | |
50741abc | 10962 | to_intel_crtc(crtc)->new_config = &to_intel_crtc(crtc)->config; |
c326c0a9 VS |
10963 | |
10964 | /* | |
10965 | * Calculate and store various constants which | |
10966 | * are later needed by vblank and swap-completion | |
10967 | * timestamping. They are derived from true hwmode. | |
10968 | */ | |
10969 | drm_calc_timestamping_constants(crtc, | |
10970 | &pipe_config->adjusted_mode); | |
b8cecdf5 | 10971 | } |
7758a113 | 10972 | |
ea9d758d DV |
10973 | /* Only after disabling all output pipelines that will be changed can we |
10974 | * update the the output configuration. */ | |
10975 | intel_modeset_update_state(dev, prepare_pipes); | |
f6e5b160 | 10976 | |
47fab737 DV |
10977 | if (dev_priv->display.modeset_global_resources) |
10978 | dev_priv->display.modeset_global_resources(dev); | |
10979 | ||
a6778b3c DV |
10980 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
10981 | * on the DPLL. | |
f6e5b160 | 10982 | */ |
25c5b266 | 10983 | for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { |
2ff8fde1 MR |
10984 | struct drm_framebuffer *old_fb = crtc->primary->fb; |
10985 | struct drm_i915_gem_object *old_obj = intel_fb_obj(old_fb); | |
10986 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
4c10794f DV |
10987 | |
10988 | mutex_lock(&dev->struct_mutex); | |
10989 | ret = intel_pin_and_fence_fb_obj(dev, | |
a071fa00 | 10990 | obj, |
4c10794f DV |
10991 | NULL); |
10992 | if (ret != 0) { | |
10993 | DRM_ERROR("pin & fence failed\n"); | |
10994 | mutex_unlock(&dev->struct_mutex); | |
10995 | goto done; | |
10996 | } | |
2ff8fde1 | 10997 | if (old_fb) |
a071fa00 | 10998 | intel_unpin_fb_obj(old_obj); |
a071fa00 DV |
10999 | i915_gem_track_fb(old_obj, obj, |
11000 | INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe)); | |
4c10794f DV |
11001 | mutex_unlock(&dev->struct_mutex); |
11002 | ||
11003 | crtc->primary->fb = fb; | |
11004 | crtc->x = x; | |
11005 | crtc->y = y; | |
11006 | ||
4271b753 DV |
11007 | ret = dev_priv->display.crtc_mode_set(&intel_crtc->base, |
11008 | x, y, fb); | |
c0c36b94 CW |
11009 | if (ret) |
11010 | goto done; | |
a6778b3c DV |
11011 | } |
11012 | ||
11013 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ | |
80715b2f VS |
11014 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) { |
11015 | update_scanline_offset(intel_crtc); | |
11016 | ||
25c5b266 | 11017 | dev_priv->display.crtc_enable(&intel_crtc->base); |
80715b2f | 11018 | } |
a6778b3c | 11019 | |
a6778b3c DV |
11020 | /* FIXME: add subpixel order */ |
11021 | done: | |
4b4b9238 | 11022 | if (ret && crtc->enabled) |
3ac18232 | 11023 | crtc->mode = *saved_mode; |
a6778b3c | 11024 | |
3ac18232 | 11025 | out: |
b8cecdf5 | 11026 | kfree(pipe_config); |
3ac18232 | 11027 | kfree(saved_mode); |
a6778b3c | 11028 | return ret; |
f6e5b160 CW |
11029 | } |
11030 | ||
e7457a9a DL |
11031 | static int intel_set_mode(struct drm_crtc *crtc, |
11032 | struct drm_display_mode *mode, | |
11033 | int x, int y, struct drm_framebuffer *fb) | |
f30da187 DV |
11034 | { |
11035 | int ret; | |
11036 | ||
11037 | ret = __intel_set_mode(crtc, mode, x, y, fb); | |
11038 | ||
11039 | if (ret == 0) | |
11040 | intel_modeset_check_state(crtc->dev); | |
11041 | ||
11042 | return ret; | |
11043 | } | |
11044 | ||
c0c36b94 CW |
11045 | void intel_crtc_restore_mode(struct drm_crtc *crtc) |
11046 | { | |
f4510a27 | 11047 | intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->primary->fb); |
c0c36b94 CW |
11048 | } |
11049 | ||
25c5b266 DV |
11050 | #undef for_each_intel_crtc_masked |
11051 | ||
d9e55608 DV |
11052 | static void intel_set_config_free(struct intel_set_config *config) |
11053 | { | |
11054 | if (!config) | |
11055 | return; | |
11056 | ||
1aa4b628 DV |
11057 | kfree(config->save_connector_encoders); |
11058 | kfree(config->save_encoder_crtcs); | |
7668851f | 11059 | kfree(config->save_crtc_enabled); |
d9e55608 DV |
11060 | kfree(config); |
11061 | } | |
11062 | ||
85f9eb71 DV |
11063 | static int intel_set_config_save_state(struct drm_device *dev, |
11064 | struct intel_set_config *config) | |
11065 | { | |
7668851f | 11066 | struct drm_crtc *crtc; |
85f9eb71 DV |
11067 | struct drm_encoder *encoder; |
11068 | struct drm_connector *connector; | |
11069 | int count; | |
11070 | ||
7668851f VS |
11071 | config->save_crtc_enabled = |
11072 | kcalloc(dev->mode_config.num_crtc, | |
11073 | sizeof(bool), GFP_KERNEL); | |
11074 | if (!config->save_crtc_enabled) | |
11075 | return -ENOMEM; | |
11076 | ||
1aa4b628 DV |
11077 | config->save_encoder_crtcs = |
11078 | kcalloc(dev->mode_config.num_encoder, | |
11079 | sizeof(struct drm_crtc *), GFP_KERNEL); | |
11080 | if (!config->save_encoder_crtcs) | |
85f9eb71 DV |
11081 | return -ENOMEM; |
11082 | ||
1aa4b628 DV |
11083 | config->save_connector_encoders = |
11084 | kcalloc(dev->mode_config.num_connector, | |
11085 | sizeof(struct drm_encoder *), GFP_KERNEL); | |
11086 | if (!config->save_connector_encoders) | |
85f9eb71 DV |
11087 | return -ENOMEM; |
11088 | ||
11089 | /* Copy data. Note that driver private data is not affected. | |
11090 | * Should anything bad happen only the expected state is | |
11091 | * restored, not the drivers personal bookkeeping. | |
11092 | */ | |
7668851f | 11093 | count = 0; |
70e1e0ec | 11094 | for_each_crtc(dev, crtc) { |
7668851f VS |
11095 | config->save_crtc_enabled[count++] = crtc->enabled; |
11096 | } | |
11097 | ||
85f9eb71 DV |
11098 | count = 0; |
11099 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
1aa4b628 | 11100 | config->save_encoder_crtcs[count++] = encoder->crtc; |
85f9eb71 DV |
11101 | } |
11102 | ||
11103 | count = 0; | |
11104 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1aa4b628 | 11105 | config->save_connector_encoders[count++] = connector->encoder; |
85f9eb71 DV |
11106 | } |
11107 | ||
11108 | return 0; | |
11109 | } | |
11110 | ||
11111 | static void intel_set_config_restore_state(struct drm_device *dev, | |
11112 | struct intel_set_config *config) | |
11113 | { | |
7668851f | 11114 | struct intel_crtc *crtc; |
9a935856 DV |
11115 | struct intel_encoder *encoder; |
11116 | struct intel_connector *connector; | |
85f9eb71 DV |
11117 | int count; |
11118 | ||
7668851f | 11119 | count = 0; |
d3fcc808 | 11120 | for_each_intel_crtc(dev, crtc) { |
7668851f | 11121 | crtc->new_enabled = config->save_crtc_enabled[count++]; |
7bd0a8e7 VS |
11122 | |
11123 | if (crtc->new_enabled) | |
11124 | crtc->new_config = &crtc->config; | |
11125 | else | |
11126 | crtc->new_config = NULL; | |
7668851f VS |
11127 | } |
11128 | ||
85f9eb71 | 11129 | count = 0; |
b2784e15 | 11130 | for_each_intel_encoder(dev, encoder) { |
9a935856 DV |
11131 | encoder->new_crtc = |
11132 | to_intel_crtc(config->save_encoder_crtcs[count++]); | |
85f9eb71 DV |
11133 | } |
11134 | ||
11135 | count = 0; | |
9a935856 DV |
11136 | list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) { |
11137 | connector->new_encoder = | |
11138 | to_intel_encoder(config->save_connector_encoders[count++]); | |
85f9eb71 DV |
11139 | } |
11140 | } | |
11141 | ||
e3de42b6 | 11142 | static bool |
2e57f47d | 11143 | is_crtc_connector_off(struct drm_mode_set *set) |
e3de42b6 ID |
11144 | { |
11145 | int i; | |
11146 | ||
2e57f47d CW |
11147 | if (set->num_connectors == 0) |
11148 | return false; | |
11149 | ||
11150 | if (WARN_ON(set->connectors == NULL)) | |
11151 | return false; | |
11152 | ||
11153 | for (i = 0; i < set->num_connectors; i++) | |
11154 | if (set->connectors[i]->encoder && | |
11155 | set->connectors[i]->encoder->crtc == set->crtc && | |
11156 | set->connectors[i]->dpms != DRM_MODE_DPMS_ON) | |
e3de42b6 ID |
11157 | return true; |
11158 | ||
11159 | return false; | |
11160 | } | |
11161 | ||
5e2b584e DV |
11162 | static void |
11163 | intel_set_config_compute_mode_changes(struct drm_mode_set *set, | |
11164 | struct intel_set_config *config) | |
11165 | { | |
11166 | ||
11167 | /* We should be able to check here if the fb has the same properties | |
11168 | * and then just flip_or_move it */ | |
2e57f47d CW |
11169 | if (is_crtc_connector_off(set)) { |
11170 | config->mode_changed = true; | |
f4510a27 | 11171 | } else if (set->crtc->primary->fb != set->fb) { |
3b150f08 MR |
11172 | /* |
11173 | * If we have no fb, we can only flip as long as the crtc is | |
11174 | * active, otherwise we need a full mode set. The crtc may | |
11175 | * be active if we've only disabled the primary plane, or | |
11176 | * in fastboot situations. | |
11177 | */ | |
f4510a27 | 11178 | if (set->crtc->primary->fb == NULL) { |
319d9827 JB |
11179 | struct intel_crtc *intel_crtc = |
11180 | to_intel_crtc(set->crtc); | |
11181 | ||
3b150f08 | 11182 | if (intel_crtc->active) { |
319d9827 JB |
11183 | DRM_DEBUG_KMS("crtc has no fb, will flip\n"); |
11184 | config->fb_changed = true; | |
11185 | } else { | |
11186 | DRM_DEBUG_KMS("inactive crtc, full mode set\n"); | |
11187 | config->mode_changed = true; | |
11188 | } | |
5e2b584e DV |
11189 | } else if (set->fb == NULL) { |
11190 | config->mode_changed = true; | |
72f4901e | 11191 | } else if (set->fb->pixel_format != |
f4510a27 | 11192 | set->crtc->primary->fb->pixel_format) { |
5e2b584e | 11193 | config->mode_changed = true; |
e3de42b6 | 11194 | } else { |
5e2b584e | 11195 | config->fb_changed = true; |
e3de42b6 | 11196 | } |
5e2b584e DV |
11197 | } |
11198 | ||
835c5873 | 11199 | if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) |
5e2b584e DV |
11200 | config->fb_changed = true; |
11201 | ||
11202 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { | |
11203 | DRM_DEBUG_KMS("modes are different, full mode set\n"); | |
11204 | drm_mode_debug_printmodeline(&set->crtc->mode); | |
11205 | drm_mode_debug_printmodeline(set->mode); | |
11206 | config->mode_changed = true; | |
11207 | } | |
a1d95703 CW |
11208 | |
11209 | DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n", | |
11210 | set->crtc->base.id, config->mode_changed, config->fb_changed); | |
5e2b584e DV |
11211 | } |
11212 | ||
2e431051 | 11213 | static int |
9a935856 DV |
11214 | intel_modeset_stage_output_state(struct drm_device *dev, |
11215 | struct drm_mode_set *set, | |
11216 | struct intel_set_config *config) | |
50f56119 | 11217 | { |
9a935856 DV |
11218 | struct intel_connector *connector; |
11219 | struct intel_encoder *encoder; | |
7668851f | 11220 | struct intel_crtc *crtc; |
f3f08572 | 11221 | int ro; |
50f56119 | 11222 | |
9abdda74 | 11223 | /* The upper layers ensure that we either disable a crtc or have a list |
9a935856 DV |
11224 | * of connectors. For paranoia, double-check this. */ |
11225 | WARN_ON(!set->fb && (set->num_connectors != 0)); | |
11226 | WARN_ON(set->fb && (set->num_connectors == 0)); | |
11227 | ||
9a935856 DV |
11228 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
11229 | base.head) { | |
11230 | /* Otherwise traverse passed in connector list and get encoders | |
11231 | * for them. */ | |
50f56119 | 11232 | for (ro = 0; ro < set->num_connectors; ro++) { |
9a935856 | 11233 | if (set->connectors[ro] == &connector->base) { |
0e32b39c | 11234 | connector->new_encoder = intel_find_encoder(connector, to_intel_crtc(set->crtc)->pipe); |
50f56119 DV |
11235 | break; |
11236 | } | |
11237 | } | |
11238 | ||
9a935856 DV |
11239 | /* If we disable the crtc, disable all its connectors. Also, if |
11240 | * the connector is on the changing crtc but not on the new | |
11241 | * connector list, disable it. */ | |
11242 | if ((!set->fb || ro == set->num_connectors) && | |
11243 | connector->base.encoder && | |
11244 | connector->base.encoder->crtc == set->crtc) { | |
11245 | connector->new_encoder = NULL; | |
11246 | ||
11247 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", | |
11248 | connector->base.base.id, | |
c23cc417 | 11249 | connector->base.name); |
9a935856 DV |
11250 | } |
11251 | ||
11252 | ||
11253 | if (&connector->new_encoder->base != connector->base.encoder) { | |
50f56119 | 11254 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
5e2b584e | 11255 | config->mode_changed = true; |
50f56119 DV |
11256 | } |
11257 | } | |
9a935856 | 11258 | /* connector->new_encoder is now updated for all connectors. */ |
50f56119 | 11259 | |
9a935856 | 11260 | /* Update crtc of enabled connectors. */ |
9a935856 DV |
11261 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
11262 | base.head) { | |
7668851f VS |
11263 | struct drm_crtc *new_crtc; |
11264 | ||
9a935856 | 11265 | if (!connector->new_encoder) |
50f56119 DV |
11266 | continue; |
11267 | ||
9a935856 | 11268 | new_crtc = connector->new_encoder->base.crtc; |
50f56119 DV |
11269 | |
11270 | for (ro = 0; ro < set->num_connectors; ro++) { | |
9a935856 | 11271 | if (set->connectors[ro] == &connector->base) |
50f56119 DV |
11272 | new_crtc = set->crtc; |
11273 | } | |
11274 | ||
11275 | /* Make sure the new CRTC will work with the encoder */ | |
14509916 TR |
11276 | if (!drm_encoder_crtc_ok(&connector->new_encoder->base, |
11277 | new_crtc)) { | |
5e2b584e | 11278 | return -EINVAL; |
50f56119 | 11279 | } |
0e32b39c | 11280 | connector->new_encoder->new_crtc = to_intel_crtc(new_crtc); |
9a935856 DV |
11281 | |
11282 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", | |
11283 | connector->base.base.id, | |
c23cc417 | 11284 | connector->base.name, |
9a935856 DV |
11285 | new_crtc->base.id); |
11286 | } | |
11287 | ||
11288 | /* Check for any encoders that needs to be disabled. */ | |
b2784e15 | 11289 | for_each_intel_encoder(dev, encoder) { |
5a65f358 | 11290 | int num_connectors = 0; |
9a935856 DV |
11291 | list_for_each_entry(connector, |
11292 | &dev->mode_config.connector_list, | |
11293 | base.head) { | |
11294 | if (connector->new_encoder == encoder) { | |
11295 | WARN_ON(!connector->new_encoder->new_crtc); | |
5a65f358 | 11296 | num_connectors++; |
9a935856 DV |
11297 | } |
11298 | } | |
5a65f358 PZ |
11299 | |
11300 | if (num_connectors == 0) | |
11301 | encoder->new_crtc = NULL; | |
11302 | else if (num_connectors > 1) | |
11303 | return -EINVAL; | |
11304 | ||
9a935856 DV |
11305 | /* Only now check for crtc changes so we don't miss encoders |
11306 | * that will be disabled. */ | |
11307 | if (&encoder->new_crtc->base != encoder->base.crtc) { | |
50f56119 | 11308 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
5e2b584e | 11309 | config->mode_changed = true; |
50f56119 DV |
11310 | } |
11311 | } | |
9a935856 | 11312 | /* Now we've also updated encoder->new_crtc for all encoders. */ |
0e32b39c DA |
11313 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
11314 | base.head) { | |
11315 | if (connector->new_encoder) | |
11316 | if (connector->new_encoder != connector->encoder) | |
11317 | connector->encoder = connector->new_encoder; | |
11318 | } | |
d3fcc808 | 11319 | for_each_intel_crtc(dev, crtc) { |
7668851f VS |
11320 | crtc->new_enabled = false; |
11321 | ||
b2784e15 | 11322 | for_each_intel_encoder(dev, encoder) { |
7668851f VS |
11323 | if (encoder->new_crtc == crtc) { |
11324 | crtc->new_enabled = true; | |
11325 | break; | |
11326 | } | |
11327 | } | |
11328 | ||
11329 | if (crtc->new_enabled != crtc->base.enabled) { | |
11330 | DRM_DEBUG_KMS("crtc %sabled, full mode switch\n", | |
11331 | crtc->new_enabled ? "en" : "dis"); | |
11332 | config->mode_changed = true; | |
11333 | } | |
7bd0a8e7 VS |
11334 | |
11335 | if (crtc->new_enabled) | |
11336 | crtc->new_config = &crtc->config; | |
11337 | else | |
11338 | crtc->new_config = NULL; | |
7668851f VS |
11339 | } |
11340 | ||
2e431051 DV |
11341 | return 0; |
11342 | } | |
11343 | ||
7d00a1f5 VS |
11344 | static void disable_crtc_nofb(struct intel_crtc *crtc) |
11345 | { | |
11346 | struct drm_device *dev = crtc->base.dev; | |
11347 | struct intel_encoder *encoder; | |
11348 | struct intel_connector *connector; | |
11349 | ||
11350 | DRM_DEBUG_KMS("Trying to restore without FB -> disabling pipe %c\n", | |
11351 | pipe_name(crtc->pipe)); | |
11352 | ||
11353 | list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) { | |
11354 | if (connector->new_encoder && | |
11355 | connector->new_encoder->new_crtc == crtc) | |
11356 | connector->new_encoder = NULL; | |
11357 | } | |
11358 | ||
b2784e15 | 11359 | for_each_intel_encoder(dev, encoder) { |
7d00a1f5 VS |
11360 | if (encoder->new_crtc == crtc) |
11361 | encoder->new_crtc = NULL; | |
11362 | } | |
11363 | ||
11364 | crtc->new_enabled = false; | |
7bd0a8e7 | 11365 | crtc->new_config = NULL; |
7d00a1f5 VS |
11366 | } |
11367 | ||
2e431051 DV |
11368 | static int intel_crtc_set_config(struct drm_mode_set *set) |
11369 | { | |
11370 | struct drm_device *dev; | |
2e431051 DV |
11371 | struct drm_mode_set save_set; |
11372 | struct intel_set_config *config; | |
11373 | int ret; | |
2e431051 | 11374 | |
8d3e375e DV |
11375 | BUG_ON(!set); |
11376 | BUG_ON(!set->crtc); | |
11377 | BUG_ON(!set->crtc->helper_private); | |
2e431051 | 11378 | |
7e53f3a4 DV |
11379 | /* Enforce sane interface api - has been abused by the fb helper. */ |
11380 | BUG_ON(!set->mode && set->fb); | |
11381 | BUG_ON(set->fb && set->num_connectors == 0); | |
431e50f7 | 11382 | |
2e431051 DV |
11383 | if (set->fb) { |
11384 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", | |
11385 | set->crtc->base.id, set->fb->base.id, | |
11386 | (int)set->num_connectors, set->x, set->y); | |
11387 | } else { | |
11388 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); | |
2e431051 DV |
11389 | } |
11390 | ||
11391 | dev = set->crtc->dev; | |
11392 | ||
11393 | ret = -ENOMEM; | |
11394 | config = kzalloc(sizeof(*config), GFP_KERNEL); | |
11395 | if (!config) | |
11396 | goto out_config; | |
11397 | ||
11398 | ret = intel_set_config_save_state(dev, config); | |
11399 | if (ret) | |
11400 | goto out_config; | |
11401 | ||
11402 | save_set.crtc = set->crtc; | |
11403 | save_set.mode = &set->crtc->mode; | |
11404 | save_set.x = set->crtc->x; | |
11405 | save_set.y = set->crtc->y; | |
f4510a27 | 11406 | save_set.fb = set->crtc->primary->fb; |
2e431051 DV |
11407 | |
11408 | /* Compute whether we need a full modeset, only an fb base update or no | |
11409 | * change at all. In the future we might also check whether only the | |
11410 | * mode changed, e.g. for LVDS where we only change the panel fitter in | |
11411 | * such cases. */ | |
11412 | intel_set_config_compute_mode_changes(set, config); | |
11413 | ||
9a935856 | 11414 | ret = intel_modeset_stage_output_state(dev, set, config); |
2e431051 DV |
11415 | if (ret) |
11416 | goto fail; | |
11417 | ||
5e2b584e | 11418 | if (config->mode_changed) { |
c0c36b94 CW |
11419 | ret = intel_set_mode(set->crtc, set->mode, |
11420 | set->x, set->y, set->fb); | |
5e2b584e | 11421 | } else if (config->fb_changed) { |
3b150f08 MR |
11422 | struct intel_crtc *intel_crtc = to_intel_crtc(set->crtc); |
11423 | ||
4878cae2 VS |
11424 | intel_crtc_wait_for_pending_flips(set->crtc); |
11425 | ||
4f660f49 | 11426 | ret = intel_pipe_set_base(set->crtc, |
94352cf9 | 11427 | set->x, set->y, set->fb); |
3b150f08 MR |
11428 | |
11429 | /* | |
11430 | * We need to make sure the primary plane is re-enabled if it | |
11431 | * has previously been turned off. | |
11432 | */ | |
11433 | if (!intel_crtc->primary_enabled && ret == 0) { | |
11434 | WARN_ON(!intel_crtc->active); | |
fdd508a6 | 11435 | intel_enable_primary_hw_plane(set->crtc->primary, set->crtc); |
3b150f08 MR |
11436 | } |
11437 | ||
7ca51a3a JB |
11438 | /* |
11439 | * In the fastboot case this may be our only check of the | |
11440 | * state after boot. It would be better to only do it on | |
11441 | * the first update, but we don't have a nice way of doing that | |
11442 | * (and really, set_config isn't used much for high freq page | |
11443 | * flipping, so increasing its cost here shouldn't be a big | |
11444 | * deal). | |
11445 | */ | |
d330a953 | 11446 | if (i915.fastboot && ret == 0) |
7ca51a3a | 11447 | intel_modeset_check_state(set->crtc->dev); |
50f56119 DV |
11448 | } |
11449 | ||
2d05eae1 | 11450 | if (ret) { |
bf67dfeb DV |
11451 | DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n", |
11452 | set->crtc->base.id, ret); | |
50f56119 | 11453 | fail: |
2d05eae1 | 11454 | intel_set_config_restore_state(dev, config); |
50f56119 | 11455 | |
7d00a1f5 VS |
11456 | /* |
11457 | * HACK: if the pipe was on, but we didn't have a framebuffer, | |
11458 | * force the pipe off to avoid oopsing in the modeset code | |
11459 | * due to fb==NULL. This should only happen during boot since | |
11460 | * we don't yet reconstruct the FB from the hardware state. | |
11461 | */ | |
11462 | if (to_intel_crtc(save_set.crtc)->new_enabled && !save_set.fb) | |
11463 | disable_crtc_nofb(to_intel_crtc(save_set.crtc)); | |
11464 | ||
2d05eae1 CW |
11465 | /* Try to restore the config */ |
11466 | if (config->mode_changed && | |
11467 | intel_set_mode(save_set.crtc, save_set.mode, | |
11468 | save_set.x, save_set.y, save_set.fb)) | |
11469 | DRM_ERROR("failed to restore config after modeset failure\n"); | |
11470 | } | |
50f56119 | 11471 | |
d9e55608 DV |
11472 | out_config: |
11473 | intel_set_config_free(config); | |
50f56119 DV |
11474 | return ret; |
11475 | } | |
f6e5b160 CW |
11476 | |
11477 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
f6e5b160 | 11478 | .gamma_set = intel_crtc_gamma_set, |
50f56119 | 11479 | .set_config = intel_crtc_set_config, |
f6e5b160 CW |
11480 | .destroy = intel_crtc_destroy, |
11481 | .page_flip = intel_crtc_page_flip, | |
11482 | }; | |
11483 | ||
5358901f DV |
11484 | static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv, |
11485 | struct intel_shared_dpll *pll, | |
11486 | struct intel_dpll_hw_state *hw_state) | |
ee7b9f93 | 11487 | { |
5358901f | 11488 | uint32_t val; |
ee7b9f93 | 11489 | |
f458ebbc | 11490 | if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PLLS)) |
bd2bb1b9 PZ |
11491 | return false; |
11492 | ||
5358901f | 11493 | val = I915_READ(PCH_DPLL(pll->id)); |
66e985c0 DV |
11494 | hw_state->dpll = val; |
11495 | hw_state->fp0 = I915_READ(PCH_FP0(pll->id)); | |
11496 | hw_state->fp1 = I915_READ(PCH_FP1(pll->id)); | |
5358901f DV |
11497 | |
11498 | return val & DPLL_VCO_ENABLE; | |
11499 | } | |
11500 | ||
15bdd4cf DV |
11501 | static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv, |
11502 | struct intel_shared_dpll *pll) | |
11503 | { | |
11504 | I915_WRITE(PCH_FP0(pll->id), pll->hw_state.fp0); | |
11505 | I915_WRITE(PCH_FP1(pll->id), pll->hw_state.fp1); | |
11506 | } | |
11507 | ||
e7b903d2 DV |
11508 | static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv, |
11509 | struct intel_shared_dpll *pll) | |
11510 | { | |
e7b903d2 | 11511 | /* PCH refclock must be enabled first */ |
89eff4be | 11512 | ibx_assert_pch_refclk_enabled(dev_priv); |
e7b903d2 | 11513 | |
15bdd4cf DV |
11514 | I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll); |
11515 | ||
11516 | /* Wait for the clocks to stabilize. */ | |
11517 | POSTING_READ(PCH_DPLL(pll->id)); | |
11518 | udelay(150); | |
11519 | ||
11520 | /* The pixel multiplier can only be updated once the | |
11521 | * DPLL is enabled and the clocks are stable. | |
11522 | * | |
11523 | * So write it again. | |
11524 | */ | |
11525 | I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll); | |
11526 | POSTING_READ(PCH_DPLL(pll->id)); | |
e7b903d2 DV |
11527 | udelay(200); |
11528 | } | |
11529 | ||
11530 | static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv, | |
11531 | struct intel_shared_dpll *pll) | |
11532 | { | |
11533 | struct drm_device *dev = dev_priv->dev; | |
11534 | struct intel_crtc *crtc; | |
e7b903d2 DV |
11535 | |
11536 | /* Make sure no transcoder isn't still depending on us. */ | |
d3fcc808 | 11537 | for_each_intel_crtc(dev, crtc) { |
e7b903d2 DV |
11538 | if (intel_crtc_to_shared_dpll(crtc) == pll) |
11539 | assert_pch_transcoder_disabled(dev_priv, crtc->pipe); | |
ee7b9f93 JB |
11540 | } |
11541 | ||
15bdd4cf DV |
11542 | I915_WRITE(PCH_DPLL(pll->id), 0); |
11543 | POSTING_READ(PCH_DPLL(pll->id)); | |
e7b903d2 DV |
11544 | udelay(200); |
11545 | } | |
11546 | ||
46edb027 DV |
11547 | static char *ibx_pch_dpll_names[] = { |
11548 | "PCH DPLL A", | |
11549 | "PCH DPLL B", | |
11550 | }; | |
11551 | ||
7c74ade1 | 11552 | static void ibx_pch_dpll_init(struct drm_device *dev) |
ee7b9f93 | 11553 | { |
e7b903d2 | 11554 | struct drm_i915_private *dev_priv = dev->dev_private; |
ee7b9f93 JB |
11555 | int i; |
11556 | ||
7c74ade1 | 11557 | dev_priv->num_shared_dpll = 2; |
ee7b9f93 | 11558 | |
e72f9fbf | 11559 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
46edb027 DV |
11560 | dev_priv->shared_dplls[i].id = i; |
11561 | dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i]; | |
15bdd4cf | 11562 | dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set; |
e7b903d2 DV |
11563 | dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable; |
11564 | dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable; | |
5358901f DV |
11565 | dev_priv->shared_dplls[i].get_hw_state = |
11566 | ibx_pch_dpll_get_hw_state; | |
ee7b9f93 JB |
11567 | } |
11568 | } | |
11569 | ||
7c74ade1 DV |
11570 | static void intel_shared_dpll_init(struct drm_device *dev) |
11571 | { | |
e7b903d2 | 11572 | struct drm_i915_private *dev_priv = dev->dev_private; |
7c74ade1 | 11573 | |
9cd86933 DV |
11574 | if (HAS_DDI(dev)) |
11575 | intel_ddi_pll_init(dev); | |
11576 | else if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
7c74ade1 DV |
11577 | ibx_pch_dpll_init(dev); |
11578 | else | |
11579 | dev_priv->num_shared_dpll = 0; | |
11580 | ||
11581 | BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS); | |
7c74ade1 DV |
11582 | } |
11583 | ||
465c120c MR |
11584 | static int |
11585 | intel_primary_plane_disable(struct drm_plane *plane) | |
11586 | { | |
11587 | struct drm_device *dev = plane->dev; | |
465c120c MR |
11588 | struct intel_crtc *intel_crtc; |
11589 | ||
11590 | if (!plane->fb) | |
11591 | return 0; | |
11592 | ||
11593 | BUG_ON(!plane->crtc); | |
11594 | ||
11595 | intel_crtc = to_intel_crtc(plane->crtc); | |
11596 | ||
11597 | /* | |
11598 | * Even though we checked plane->fb above, it's still possible that | |
11599 | * the primary plane has been implicitly disabled because the crtc | |
11600 | * coordinates given weren't visible, or because we detected | |
11601 | * that it was 100% covered by a sprite plane. Or, the CRTC may be | |
11602 | * off and we've set a fb, but haven't actually turned on the CRTC yet. | |
11603 | * In either case, we need to unpin the FB and let the fb pointer get | |
11604 | * updated, but otherwise we don't need to touch the hardware. | |
11605 | */ | |
11606 | if (!intel_crtc->primary_enabled) | |
11607 | goto disable_unpin; | |
11608 | ||
11609 | intel_crtc_wait_for_pending_flips(plane->crtc); | |
fdd508a6 VS |
11610 | intel_disable_primary_hw_plane(plane, plane->crtc); |
11611 | ||
465c120c | 11612 | disable_unpin: |
4c34574f | 11613 | mutex_lock(&dev->struct_mutex); |
2ff8fde1 | 11614 | i915_gem_track_fb(intel_fb_obj(plane->fb), NULL, |
a071fa00 | 11615 | INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe)); |
2ff8fde1 | 11616 | intel_unpin_fb_obj(intel_fb_obj(plane->fb)); |
4c34574f | 11617 | mutex_unlock(&dev->struct_mutex); |
465c120c MR |
11618 | plane->fb = NULL; |
11619 | ||
11620 | return 0; | |
11621 | } | |
11622 | ||
11623 | static int | |
3c692a41 GP |
11624 | intel_check_primary_plane(struct drm_plane *plane, |
11625 | struct intel_plane_state *state) | |
11626 | { | |
11627 | struct drm_crtc *crtc = state->crtc; | |
11628 | struct drm_framebuffer *fb = state->fb; | |
11629 | struct drm_rect *dest = &state->dst; | |
11630 | struct drm_rect *src = &state->src; | |
11631 | const struct drm_rect *clip = &state->clip; | |
ccc759dc | 11632 | int ret; |
3c692a41 | 11633 | |
ccc759dc | 11634 | ret = drm_plane_helper_check_update(plane, crtc, fb, |
3c692a41 GP |
11635 | src, dest, clip, |
11636 | DRM_PLANE_HELPER_NO_SCALING, | |
11637 | DRM_PLANE_HELPER_NO_SCALING, | |
11638 | false, true, &state->visible); | |
ccc759dc GP |
11639 | if (ret) |
11640 | return ret; | |
11641 | ||
11642 | /* no fb bound */ | |
11643 | if (state->visible && !fb) { | |
11644 | DRM_ERROR("No FB bound\n"); | |
11645 | return -EINVAL; | |
11646 | } | |
11647 | ||
11648 | return 0; | |
3c692a41 GP |
11649 | } |
11650 | ||
11651 | static int | |
11652 | intel_commit_primary_plane(struct drm_plane *plane, | |
11653 | struct intel_plane_state *state) | |
465c120c | 11654 | { |
3c692a41 GP |
11655 | struct drm_crtc *crtc = state->crtc; |
11656 | struct drm_framebuffer *fb = state->fb; | |
465c120c | 11657 | struct drm_device *dev = crtc->dev; |
48404c1e | 11658 | struct drm_i915_private *dev_priv = dev->dev_private; |
465c120c | 11659 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
ccc759dc GP |
11660 | enum pipe pipe = intel_crtc->pipe; |
11661 | struct drm_framebuffer *old_fb = plane->fb; | |
2ff8fde1 MR |
11662 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
11663 | struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->fb); | |
ce54d85a | 11664 | struct intel_plane *intel_plane = to_intel_plane(plane); |
3c692a41 | 11665 | struct drm_rect *src = &state->src; |
465c120c MR |
11666 | int ret; |
11667 | ||
465c120c MR |
11668 | intel_crtc_wait_for_pending_flips(crtc); |
11669 | ||
ccc759dc GP |
11670 | if (intel_crtc_has_pending_flip(crtc)) { |
11671 | DRM_ERROR("pipe is still busy with an old pageflip\n"); | |
11672 | return -EBUSY; | |
11673 | } | |
11674 | ||
11675 | if (plane->fb != fb) { | |
4c34574f | 11676 | mutex_lock(&dev->struct_mutex); |
ccc759dc GP |
11677 | ret = intel_pin_and_fence_fb_obj(dev, obj, NULL); |
11678 | if (ret == 0) | |
11679 | i915_gem_track_fb(old_obj, obj, | |
11680 | INTEL_FRONTBUFFER_PRIMARY(pipe)); | |
11681 | mutex_unlock(&dev->struct_mutex); | |
11682 | if (ret != 0) { | |
11683 | DRM_DEBUG_KMS("pin & fence failed\n"); | |
11684 | return ret; | |
11685 | } | |
11686 | } | |
11687 | ||
11688 | crtc->primary->fb = fb; | |
11689 | crtc->x = src->x1; | |
11690 | crtc->y = src->y1; | |
11691 | ||
11692 | intel_plane->crtc_x = state->orig_dst.x1; | |
11693 | intel_plane->crtc_y = state->orig_dst.y1; | |
11694 | intel_plane->crtc_w = drm_rect_width(&state->orig_dst); | |
11695 | intel_plane->crtc_h = drm_rect_height(&state->orig_dst); | |
11696 | intel_plane->src_x = state->orig_src.x1; | |
11697 | intel_plane->src_y = state->orig_src.y1; | |
11698 | intel_plane->src_w = drm_rect_width(&state->orig_src); | |
11699 | intel_plane->src_h = drm_rect_height(&state->orig_src); | |
11700 | intel_plane->obj = obj; | |
4c34574f | 11701 | |
ccc759dc | 11702 | if (intel_crtc->active) { |
465c120c | 11703 | /* |
ccc759dc GP |
11704 | * FBC does not work on some platforms for rotated |
11705 | * planes, so disable it when rotation is not 0 and | |
11706 | * update it when rotation is set back to 0. | |
11707 | * | |
11708 | * FIXME: This is redundant with the fbc update done in | |
11709 | * the primary plane enable function except that that | |
11710 | * one is done too late. We eventually need to unify | |
11711 | * this. | |
465c120c | 11712 | */ |
ccc759dc GP |
11713 | if (intel_crtc->primary_enabled && |
11714 | INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev) && | |
11715 | dev_priv->fbc.plane == intel_crtc->plane && | |
11716 | intel_plane->rotation != BIT(DRM_ROTATE_0)) { | |
11717 | intel_disable_fbc(dev); | |
465c120c MR |
11718 | } |
11719 | ||
ccc759dc GP |
11720 | if (state->visible) { |
11721 | bool was_enabled = intel_crtc->primary_enabled; | |
465c120c | 11722 | |
ccc759dc GP |
11723 | /* FIXME: kill this fastboot hack */ |
11724 | intel_update_pipe_size(intel_crtc); | |
465c120c | 11725 | |
ccc759dc | 11726 | intel_crtc->primary_enabled = true; |
465c120c | 11727 | |
ccc759dc GP |
11728 | dev_priv->display.update_primary_plane(crtc, plane->fb, |
11729 | crtc->x, crtc->y); | |
4c34574f | 11730 | |
48404c1e | 11731 | /* |
ccc759dc GP |
11732 | * BDW signals flip done immediately if the plane |
11733 | * is disabled, even if the plane enable is already | |
11734 | * armed to occur at the next vblank :( | |
48404c1e | 11735 | */ |
ccc759dc GP |
11736 | if (IS_BROADWELL(dev) && !was_enabled) |
11737 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
11738 | } else { | |
11739 | /* | |
11740 | * If clipping results in a non-visible primary plane, | |
11741 | * we'll disable the primary plane. Note that this is | |
11742 | * a bit different than what happens if userspace | |
11743 | * explicitly disables the plane by passing fb=0 | |
11744 | * because plane->fb still gets set and pinned. | |
11745 | */ | |
11746 | intel_disable_primary_hw_plane(plane, crtc); | |
48404c1e | 11747 | } |
465c120c | 11748 | |
ccc759dc GP |
11749 | intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_PRIMARY(pipe)); |
11750 | ||
11751 | mutex_lock(&dev->struct_mutex); | |
11752 | intel_update_fbc(dev); | |
11753 | mutex_unlock(&dev->struct_mutex); | |
ce54d85a | 11754 | } |
465c120c | 11755 | |
ccc759dc GP |
11756 | if (old_fb && old_fb != fb) { |
11757 | if (intel_crtc->active) | |
11758 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
11759 | ||
11760 | mutex_lock(&dev->struct_mutex); | |
11761 | intel_unpin_fb_obj(old_obj); | |
11762 | mutex_unlock(&dev->struct_mutex); | |
11763 | } | |
465c120c MR |
11764 | |
11765 | return 0; | |
11766 | } | |
11767 | ||
3c692a41 GP |
11768 | static int |
11769 | intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc, | |
11770 | struct drm_framebuffer *fb, int crtc_x, int crtc_y, | |
11771 | unsigned int crtc_w, unsigned int crtc_h, | |
11772 | uint32_t src_x, uint32_t src_y, | |
11773 | uint32_t src_w, uint32_t src_h) | |
11774 | { | |
11775 | struct intel_plane_state state; | |
11776 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11777 | int ret; | |
11778 | ||
11779 | state.crtc = crtc; | |
11780 | state.fb = fb; | |
11781 | ||
11782 | /* sample coordinates in 16.16 fixed point */ | |
11783 | state.src.x1 = src_x; | |
11784 | state.src.x2 = src_x + src_w; | |
11785 | state.src.y1 = src_y; | |
11786 | state.src.y2 = src_y + src_h; | |
11787 | ||
11788 | /* integer pixels */ | |
11789 | state.dst.x1 = crtc_x; | |
11790 | state.dst.x2 = crtc_x + crtc_w; | |
11791 | state.dst.y1 = crtc_y; | |
11792 | state.dst.y2 = crtc_y + crtc_h; | |
11793 | ||
11794 | state.clip.x1 = 0; | |
11795 | state.clip.y1 = 0; | |
11796 | state.clip.x2 = intel_crtc->active ? intel_crtc->config.pipe_src_w : 0; | |
11797 | state.clip.y2 = intel_crtc->active ? intel_crtc->config.pipe_src_h : 0; | |
11798 | ||
11799 | state.orig_src = state.src; | |
11800 | state.orig_dst = state.dst; | |
11801 | ||
11802 | ret = intel_check_primary_plane(plane, &state); | |
11803 | if (ret) | |
11804 | return ret; | |
11805 | ||
11806 | intel_commit_primary_plane(plane, &state); | |
11807 | ||
11808 | return 0; | |
11809 | } | |
11810 | ||
3d7d6510 MR |
11811 | /* Common destruction function for both primary and cursor planes */ |
11812 | static void intel_plane_destroy(struct drm_plane *plane) | |
465c120c MR |
11813 | { |
11814 | struct intel_plane *intel_plane = to_intel_plane(plane); | |
11815 | drm_plane_cleanup(plane); | |
11816 | kfree(intel_plane); | |
11817 | } | |
11818 | ||
11819 | static const struct drm_plane_funcs intel_primary_plane_funcs = { | |
11820 | .update_plane = intel_primary_plane_setplane, | |
11821 | .disable_plane = intel_primary_plane_disable, | |
3d7d6510 | 11822 | .destroy = intel_plane_destroy, |
48404c1e | 11823 | .set_property = intel_plane_set_property |
465c120c MR |
11824 | }; |
11825 | ||
11826 | static struct drm_plane *intel_primary_plane_create(struct drm_device *dev, | |
11827 | int pipe) | |
11828 | { | |
11829 | struct intel_plane *primary; | |
11830 | const uint32_t *intel_primary_formats; | |
11831 | int num_formats; | |
11832 | ||
11833 | primary = kzalloc(sizeof(*primary), GFP_KERNEL); | |
11834 | if (primary == NULL) | |
11835 | return NULL; | |
11836 | ||
11837 | primary->can_scale = false; | |
11838 | primary->max_downscale = 1; | |
11839 | primary->pipe = pipe; | |
11840 | primary->plane = pipe; | |
48404c1e | 11841 | primary->rotation = BIT(DRM_ROTATE_0); |
465c120c MR |
11842 | if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) |
11843 | primary->plane = !pipe; | |
11844 | ||
11845 | if (INTEL_INFO(dev)->gen <= 3) { | |
11846 | intel_primary_formats = intel_primary_formats_gen2; | |
11847 | num_formats = ARRAY_SIZE(intel_primary_formats_gen2); | |
11848 | } else { | |
11849 | intel_primary_formats = intel_primary_formats_gen4; | |
11850 | num_formats = ARRAY_SIZE(intel_primary_formats_gen4); | |
11851 | } | |
11852 | ||
11853 | drm_universal_plane_init(dev, &primary->base, 0, | |
11854 | &intel_primary_plane_funcs, | |
11855 | intel_primary_formats, num_formats, | |
11856 | DRM_PLANE_TYPE_PRIMARY); | |
48404c1e SJ |
11857 | |
11858 | if (INTEL_INFO(dev)->gen >= 4) { | |
11859 | if (!dev->mode_config.rotation_property) | |
11860 | dev->mode_config.rotation_property = | |
11861 | drm_mode_create_rotation_property(dev, | |
11862 | BIT(DRM_ROTATE_0) | | |
11863 | BIT(DRM_ROTATE_180)); | |
11864 | if (dev->mode_config.rotation_property) | |
11865 | drm_object_attach_property(&primary->base.base, | |
11866 | dev->mode_config.rotation_property, | |
11867 | primary->rotation); | |
11868 | } | |
11869 | ||
465c120c MR |
11870 | return &primary->base; |
11871 | } | |
11872 | ||
3d7d6510 MR |
11873 | static int |
11874 | intel_cursor_plane_disable(struct drm_plane *plane) | |
11875 | { | |
11876 | if (!plane->fb) | |
11877 | return 0; | |
11878 | ||
11879 | BUG_ON(!plane->crtc); | |
11880 | ||
11881 | return intel_crtc_cursor_set_obj(plane->crtc, NULL, 0, 0); | |
11882 | } | |
11883 | ||
11884 | static int | |
852e787c GP |
11885 | intel_check_cursor_plane(struct drm_plane *plane, |
11886 | struct intel_plane_state *state) | |
3d7d6510 | 11887 | { |
852e787c | 11888 | struct drm_crtc *crtc = state->crtc; |
757f9a3e | 11889 | struct drm_device *dev = crtc->dev; |
852e787c GP |
11890 | struct drm_framebuffer *fb = state->fb; |
11891 | struct drm_rect *dest = &state->dst; | |
11892 | struct drm_rect *src = &state->src; | |
11893 | const struct drm_rect *clip = &state->clip; | |
757f9a3e GP |
11894 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
11895 | int crtc_w, crtc_h; | |
11896 | unsigned stride; | |
11897 | int ret; | |
3d7d6510 | 11898 | |
757f9a3e | 11899 | ret = drm_plane_helper_check_update(plane, crtc, fb, |
852e787c | 11900 | src, dest, clip, |
3d7d6510 MR |
11901 | DRM_PLANE_HELPER_NO_SCALING, |
11902 | DRM_PLANE_HELPER_NO_SCALING, | |
852e787c | 11903 | true, true, &state->visible); |
757f9a3e GP |
11904 | if (ret) |
11905 | return ret; | |
11906 | ||
11907 | ||
11908 | /* if we want to turn off the cursor ignore width and height */ | |
11909 | if (!obj) | |
11910 | return 0; | |
11911 | ||
757f9a3e GP |
11912 | /* Check for which cursor types we support */ |
11913 | crtc_w = drm_rect_width(&state->orig_dst); | |
11914 | crtc_h = drm_rect_height(&state->orig_dst); | |
11915 | if (!cursor_size_ok(dev, crtc_w, crtc_h)) { | |
11916 | DRM_DEBUG("Cursor dimension not supported\n"); | |
11917 | return -EINVAL; | |
11918 | } | |
11919 | ||
11920 | stride = roundup_pow_of_two(crtc_w) * 4; | |
11921 | if (obj->base.size < stride * crtc_h) { | |
11922 | DRM_DEBUG_KMS("buffer is too small\n"); | |
11923 | return -ENOMEM; | |
11924 | } | |
11925 | ||
e391ea88 GP |
11926 | if (fb == crtc->cursor->fb) |
11927 | return 0; | |
11928 | ||
757f9a3e GP |
11929 | /* we only need to pin inside GTT if cursor is non-phy */ |
11930 | mutex_lock(&dev->struct_mutex); | |
11931 | if (!INTEL_INFO(dev)->cursor_needs_physical && obj->tiling_mode) { | |
11932 | DRM_DEBUG_KMS("cursor cannot be tiled\n"); | |
11933 | ret = -EINVAL; | |
11934 | } | |
11935 | mutex_unlock(&dev->struct_mutex); | |
11936 | ||
11937 | return ret; | |
852e787c | 11938 | } |
3d7d6510 | 11939 | |
852e787c GP |
11940 | static int |
11941 | intel_commit_cursor_plane(struct drm_plane *plane, | |
11942 | struct intel_plane_state *state) | |
11943 | { | |
11944 | struct drm_crtc *crtc = state->crtc; | |
11945 | struct drm_framebuffer *fb = state->fb; | |
11946 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11947 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
11948 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
11949 | int crtc_w, crtc_h; | |
11950 | ||
11951 | crtc->cursor_x = state->orig_dst.x1; | |
11952 | crtc->cursor_y = state->orig_dst.y1; | |
3d7d6510 | 11953 | if (fb != crtc->cursor->fb) { |
852e787c GP |
11954 | crtc_w = drm_rect_width(&state->orig_dst); |
11955 | crtc_h = drm_rect_height(&state->orig_dst); | |
3d7d6510 MR |
11956 | return intel_crtc_cursor_set_obj(crtc, obj, crtc_w, crtc_h); |
11957 | } else { | |
852e787c | 11958 | intel_crtc_update_cursor(crtc, state->visible); |
4ed91096 DV |
11959 | |
11960 | intel_frontbuffer_flip(crtc->dev, | |
11961 | INTEL_FRONTBUFFER_CURSOR(intel_crtc->pipe)); | |
11962 | ||
3d7d6510 MR |
11963 | return 0; |
11964 | } | |
11965 | } | |
852e787c GP |
11966 | |
11967 | static int | |
11968 | intel_cursor_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, | |
11969 | struct drm_framebuffer *fb, int crtc_x, int crtc_y, | |
11970 | unsigned int crtc_w, unsigned int crtc_h, | |
11971 | uint32_t src_x, uint32_t src_y, | |
11972 | uint32_t src_w, uint32_t src_h) | |
11973 | { | |
11974 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11975 | struct intel_plane_state state; | |
11976 | int ret; | |
11977 | ||
11978 | state.crtc = crtc; | |
11979 | state.fb = fb; | |
11980 | ||
11981 | /* sample coordinates in 16.16 fixed point */ | |
11982 | state.src.x1 = src_x; | |
11983 | state.src.x2 = src_x + src_w; | |
11984 | state.src.y1 = src_y; | |
11985 | state.src.y2 = src_y + src_h; | |
11986 | ||
11987 | /* integer pixels */ | |
11988 | state.dst.x1 = crtc_x; | |
11989 | state.dst.x2 = crtc_x + crtc_w; | |
11990 | state.dst.y1 = crtc_y; | |
11991 | state.dst.y2 = crtc_y + crtc_h; | |
11992 | ||
11993 | state.clip.x1 = 0; | |
11994 | state.clip.y1 = 0; | |
11995 | state.clip.x2 = intel_crtc->active ? intel_crtc->config.pipe_src_w : 0; | |
11996 | state.clip.y2 = intel_crtc->active ? intel_crtc->config.pipe_src_h : 0; | |
11997 | ||
11998 | state.orig_src = state.src; | |
11999 | state.orig_dst = state.dst; | |
12000 | ||
12001 | ret = intel_check_cursor_plane(plane, &state); | |
12002 | if (ret) | |
12003 | return ret; | |
12004 | ||
12005 | return intel_commit_cursor_plane(plane, &state); | |
12006 | } | |
12007 | ||
3d7d6510 MR |
12008 | static const struct drm_plane_funcs intel_cursor_plane_funcs = { |
12009 | .update_plane = intel_cursor_plane_update, | |
12010 | .disable_plane = intel_cursor_plane_disable, | |
12011 | .destroy = intel_plane_destroy, | |
12012 | }; | |
12013 | ||
12014 | static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev, | |
12015 | int pipe) | |
12016 | { | |
12017 | struct intel_plane *cursor; | |
12018 | ||
12019 | cursor = kzalloc(sizeof(*cursor), GFP_KERNEL); | |
12020 | if (cursor == NULL) | |
12021 | return NULL; | |
12022 | ||
12023 | cursor->can_scale = false; | |
12024 | cursor->max_downscale = 1; | |
12025 | cursor->pipe = pipe; | |
12026 | cursor->plane = pipe; | |
12027 | ||
12028 | drm_universal_plane_init(dev, &cursor->base, 0, | |
12029 | &intel_cursor_plane_funcs, | |
12030 | intel_cursor_formats, | |
12031 | ARRAY_SIZE(intel_cursor_formats), | |
12032 | DRM_PLANE_TYPE_CURSOR); | |
12033 | return &cursor->base; | |
12034 | } | |
12035 | ||
b358d0a6 | 12036 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 12037 | { |
fbee40df | 12038 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 12039 | struct intel_crtc *intel_crtc; |
3d7d6510 MR |
12040 | struct drm_plane *primary = NULL; |
12041 | struct drm_plane *cursor = NULL; | |
465c120c | 12042 | int i, ret; |
79e53945 | 12043 | |
955382f3 | 12044 | intel_crtc = kzalloc(sizeof(*intel_crtc), GFP_KERNEL); |
79e53945 JB |
12045 | if (intel_crtc == NULL) |
12046 | return; | |
12047 | ||
465c120c | 12048 | primary = intel_primary_plane_create(dev, pipe); |
3d7d6510 MR |
12049 | if (!primary) |
12050 | goto fail; | |
12051 | ||
12052 | cursor = intel_cursor_plane_create(dev, pipe); | |
12053 | if (!cursor) | |
12054 | goto fail; | |
12055 | ||
465c120c | 12056 | ret = drm_crtc_init_with_planes(dev, &intel_crtc->base, primary, |
3d7d6510 MR |
12057 | cursor, &intel_crtc_funcs); |
12058 | if (ret) | |
12059 | goto fail; | |
79e53945 JB |
12060 | |
12061 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
12062 | for (i = 0; i < 256; i++) { |
12063 | intel_crtc->lut_r[i] = i; | |
12064 | intel_crtc->lut_g[i] = i; | |
12065 | intel_crtc->lut_b[i] = i; | |
12066 | } | |
12067 | ||
1f1c2e24 VS |
12068 | /* |
12069 | * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port | |
8c0f92e1 | 12070 | * is hooked to pipe B. Hence we want plane A feeding pipe B. |
1f1c2e24 | 12071 | */ |
80824003 JB |
12072 | intel_crtc->pipe = pipe; |
12073 | intel_crtc->plane = pipe; | |
3a77c4c4 | 12074 | if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) { |
28c97730 | 12075 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 12076 | intel_crtc->plane = !pipe; |
80824003 JB |
12077 | } |
12078 | ||
4b0e333e CW |
12079 | intel_crtc->cursor_base = ~0; |
12080 | intel_crtc->cursor_cntl = ~0; | |
dc41c154 | 12081 | intel_crtc->cursor_size = ~0; |
8d7849db | 12082 | |
22fd0fab JB |
12083 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
12084 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
12085 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
12086 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
12087 | ||
79e53945 | 12088 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
87b6b101 DV |
12089 | |
12090 | WARN_ON(drm_crtc_index(&intel_crtc->base) != intel_crtc->pipe); | |
3d7d6510 MR |
12091 | return; |
12092 | ||
12093 | fail: | |
12094 | if (primary) | |
12095 | drm_plane_cleanup(primary); | |
12096 | if (cursor) | |
12097 | drm_plane_cleanup(cursor); | |
12098 | kfree(intel_crtc); | |
79e53945 JB |
12099 | } |
12100 | ||
752aa88a JB |
12101 | enum pipe intel_get_pipe_from_connector(struct intel_connector *connector) |
12102 | { | |
12103 | struct drm_encoder *encoder = connector->base.encoder; | |
6e9f798d | 12104 | struct drm_device *dev = connector->base.dev; |
752aa88a | 12105 | |
51fd371b | 12106 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
752aa88a JB |
12107 | |
12108 | if (!encoder) | |
12109 | return INVALID_PIPE; | |
12110 | ||
12111 | return to_intel_crtc(encoder->crtc)->pipe; | |
12112 | } | |
12113 | ||
08d7b3d1 | 12114 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 12115 | struct drm_file *file) |
08d7b3d1 | 12116 | { |
08d7b3d1 | 12117 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
7707e653 | 12118 | struct drm_crtc *drmmode_crtc; |
c05422d5 | 12119 | struct intel_crtc *crtc; |
08d7b3d1 | 12120 | |
1cff8f6b DV |
12121 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
12122 | return -ENODEV; | |
08d7b3d1 | 12123 | |
7707e653 | 12124 | drmmode_crtc = drm_crtc_find(dev, pipe_from_crtc_id->crtc_id); |
08d7b3d1 | 12125 | |
7707e653 | 12126 | if (!drmmode_crtc) { |
08d7b3d1 | 12127 | DRM_ERROR("no such CRTC id\n"); |
3f2c2057 | 12128 | return -ENOENT; |
08d7b3d1 CW |
12129 | } |
12130 | ||
7707e653 | 12131 | crtc = to_intel_crtc(drmmode_crtc); |
c05422d5 | 12132 | pipe_from_crtc_id->pipe = crtc->pipe; |
08d7b3d1 | 12133 | |
c05422d5 | 12134 | return 0; |
08d7b3d1 CW |
12135 | } |
12136 | ||
66a9278e | 12137 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 12138 | { |
66a9278e DV |
12139 | struct drm_device *dev = encoder->base.dev; |
12140 | struct intel_encoder *source_encoder; | |
79e53945 | 12141 | int index_mask = 0; |
79e53945 JB |
12142 | int entry = 0; |
12143 | ||
b2784e15 | 12144 | for_each_intel_encoder(dev, source_encoder) { |
bc079e8b | 12145 | if (encoders_cloneable(encoder, source_encoder)) |
66a9278e DV |
12146 | index_mask |= (1 << entry); |
12147 | ||
79e53945 JB |
12148 | entry++; |
12149 | } | |
4ef69c7a | 12150 | |
79e53945 JB |
12151 | return index_mask; |
12152 | } | |
12153 | ||
4d302442 CW |
12154 | static bool has_edp_a(struct drm_device *dev) |
12155 | { | |
12156 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12157 | ||
12158 | if (!IS_MOBILE(dev)) | |
12159 | return false; | |
12160 | ||
12161 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
12162 | return false; | |
12163 | ||
e3589908 | 12164 | if (IS_GEN5(dev) && (I915_READ(FUSE_STRAP) & ILK_eDP_A_DISABLE)) |
4d302442 CW |
12165 | return false; |
12166 | ||
12167 | return true; | |
12168 | } | |
12169 | ||
ba0fbca4 DL |
12170 | const char *intel_output_name(int output) |
12171 | { | |
12172 | static const char *names[] = { | |
12173 | [INTEL_OUTPUT_UNUSED] = "Unused", | |
12174 | [INTEL_OUTPUT_ANALOG] = "Analog", | |
12175 | [INTEL_OUTPUT_DVO] = "DVO", | |
12176 | [INTEL_OUTPUT_SDVO] = "SDVO", | |
12177 | [INTEL_OUTPUT_LVDS] = "LVDS", | |
12178 | [INTEL_OUTPUT_TVOUT] = "TV", | |
12179 | [INTEL_OUTPUT_HDMI] = "HDMI", | |
12180 | [INTEL_OUTPUT_DISPLAYPORT] = "DisplayPort", | |
12181 | [INTEL_OUTPUT_EDP] = "eDP", | |
12182 | [INTEL_OUTPUT_DSI] = "DSI", | |
12183 | [INTEL_OUTPUT_UNKNOWN] = "Unknown", | |
12184 | }; | |
12185 | ||
12186 | if (output < 0 || output >= ARRAY_SIZE(names) || !names[output]) | |
12187 | return "Invalid"; | |
12188 | ||
12189 | return names[output]; | |
12190 | } | |
12191 | ||
84b4e042 JB |
12192 | static bool intel_crt_present(struct drm_device *dev) |
12193 | { | |
12194 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12195 | ||
884497ed DL |
12196 | if (INTEL_INFO(dev)->gen >= 9) |
12197 | return false; | |
12198 | ||
cf404ce4 | 12199 | if (IS_HSW_ULT(dev) || IS_BDW_ULT(dev)) |
84b4e042 JB |
12200 | return false; |
12201 | ||
12202 | if (IS_CHERRYVIEW(dev)) | |
12203 | return false; | |
12204 | ||
12205 | if (IS_VALLEYVIEW(dev) && !dev_priv->vbt.int_crt_support) | |
12206 | return false; | |
12207 | ||
12208 | return true; | |
12209 | } | |
12210 | ||
79e53945 JB |
12211 | static void intel_setup_outputs(struct drm_device *dev) |
12212 | { | |
725e30ad | 12213 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 12214 | struct intel_encoder *encoder; |
cb0953d7 | 12215 | bool dpd_is_edp = false; |
79e53945 | 12216 | |
c9093354 | 12217 | intel_lvds_init(dev); |
79e53945 | 12218 | |
84b4e042 | 12219 | if (intel_crt_present(dev)) |
79935fca | 12220 | intel_crt_init(dev); |
cb0953d7 | 12221 | |
affa9354 | 12222 | if (HAS_DDI(dev)) { |
0e72a5b5 ED |
12223 | int found; |
12224 | ||
12225 | /* Haswell uses DDI functions to detect digital outputs */ | |
12226 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; | |
12227 | /* DDI A only supports eDP */ | |
12228 | if (found) | |
12229 | intel_ddi_init(dev, PORT_A); | |
12230 | ||
12231 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
12232 | * register */ | |
12233 | found = I915_READ(SFUSE_STRAP); | |
12234 | ||
12235 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
12236 | intel_ddi_init(dev, PORT_B); | |
12237 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
12238 | intel_ddi_init(dev, PORT_C); | |
12239 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
12240 | intel_ddi_init(dev, PORT_D); | |
12241 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 | 12242 | int found; |
5d8a7752 | 12243 | dpd_is_edp = intel_dp_is_edp(dev, PORT_D); |
270b3042 DV |
12244 | |
12245 | if (has_edp_a(dev)) | |
12246 | intel_dp_init(dev, DP_A, PORT_A); | |
cb0953d7 | 12247 | |
dc0fa718 | 12248 | if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) { |
461ed3ca | 12249 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 12250 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 | 12251 | if (!found) |
e2debe91 | 12252 | intel_hdmi_init(dev, PCH_HDMIB, PORT_B); |
5eb08b69 | 12253 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 12254 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
12255 | } |
12256 | ||
dc0fa718 | 12257 | if (I915_READ(PCH_HDMIC) & SDVO_DETECTED) |
e2debe91 | 12258 | intel_hdmi_init(dev, PCH_HDMIC, PORT_C); |
30ad48b7 | 12259 | |
dc0fa718 | 12260 | if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED) |
e2debe91 | 12261 | intel_hdmi_init(dev, PCH_HDMID, PORT_D); |
30ad48b7 | 12262 | |
5eb08b69 | 12263 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 12264 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 12265 | |
270b3042 | 12266 | if (I915_READ(PCH_DP_D) & DP_DETECTED) |
ab9d7c30 | 12267 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
4a87d65d | 12268 | } else if (IS_VALLEYVIEW(dev)) { |
e17ac6db VS |
12269 | /* |
12270 | * The DP_DETECTED bit is the latched state of the DDC | |
12271 | * SDA pin at boot. However since eDP doesn't require DDC | |
12272 | * (no way to plug in a DP->HDMI dongle) the DDC pins for | |
12273 | * eDP ports may have been muxed to an alternate function. | |
12274 | * Thus we can't rely on the DP_DETECTED bit alone to detect | |
12275 | * eDP ports. Consult the VBT as well as DP_DETECTED to | |
12276 | * detect eDP ports. | |
12277 | */ | |
12278 | if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) | |
585a94b8 AB |
12279 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB, |
12280 | PORT_B); | |
e17ac6db VS |
12281 | if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED || |
12282 | intel_dp_is_edp(dev, PORT_B)) | |
12283 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B); | |
585a94b8 | 12284 | |
e17ac6db | 12285 | if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED) |
6f6005a5 JB |
12286 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC, |
12287 | PORT_C); | |
e17ac6db VS |
12288 | if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED || |
12289 | intel_dp_is_edp(dev, PORT_C)) | |
12290 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C); | |
19c03924 | 12291 | |
9418c1f1 | 12292 | if (IS_CHERRYVIEW(dev)) { |
e17ac6db | 12293 | if (I915_READ(VLV_DISPLAY_BASE + CHV_HDMID) & SDVO_DETECTED) |
9418c1f1 VS |
12294 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + CHV_HDMID, |
12295 | PORT_D); | |
e17ac6db VS |
12296 | /* eDP not supported on port D, so don't check VBT */ |
12297 | if (I915_READ(VLV_DISPLAY_BASE + DP_D) & DP_DETECTED) | |
12298 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_D, PORT_D); | |
9418c1f1 VS |
12299 | } |
12300 | ||
3cfca973 | 12301 | intel_dsi_init(dev); |
103a196f | 12302 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 12303 | bool found = false; |
7d57382e | 12304 | |
e2debe91 | 12305 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 12306 | DRM_DEBUG_KMS("probing SDVOB\n"); |
e2debe91 | 12307 | found = intel_sdvo_init(dev, GEN3_SDVOB, true); |
b01f2c3a JB |
12308 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
12309 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
e2debe91 | 12310 | intel_hdmi_init(dev, GEN4_HDMIB, PORT_B); |
b01f2c3a | 12311 | } |
27185ae1 | 12312 | |
e7281eab | 12313 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) |
ab9d7c30 | 12314 | intel_dp_init(dev, DP_B, PORT_B); |
725e30ad | 12315 | } |
13520b05 KH |
12316 | |
12317 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 12318 | |
e2debe91 | 12319 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 12320 | DRM_DEBUG_KMS("probing SDVOC\n"); |
e2debe91 | 12321 | found = intel_sdvo_init(dev, GEN3_SDVOC, false); |
b01f2c3a | 12322 | } |
27185ae1 | 12323 | |
e2debe91 | 12324 | if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) { |
27185ae1 | 12325 | |
b01f2c3a JB |
12326 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
12327 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
e2debe91 | 12328 | intel_hdmi_init(dev, GEN4_HDMIC, PORT_C); |
b01f2c3a | 12329 | } |
e7281eab | 12330 | if (SUPPORTS_INTEGRATED_DP(dev)) |
ab9d7c30 | 12331 | intel_dp_init(dev, DP_C, PORT_C); |
725e30ad | 12332 | } |
27185ae1 | 12333 | |
b01f2c3a | 12334 | if (SUPPORTS_INTEGRATED_DP(dev) && |
e7281eab | 12335 | (I915_READ(DP_D) & DP_DETECTED)) |
ab9d7c30 | 12336 | intel_dp_init(dev, DP_D, PORT_D); |
bad720ff | 12337 | } else if (IS_GEN2(dev)) |
79e53945 JB |
12338 | intel_dvo_init(dev); |
12339 | ||
103a196f | 12340 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
12341 | intel_tv_init(dev); |
12342 | ||
7c8f8a70 RV |
12343 | intel_edp_psr_init(dev); |
12344 | ||
b2784e15 | 12345 | for_each_intel_encoder(dev, encoder) { |
4ef69c7a CW |
12346 | encoder->base.possible_crtcs = encoder->crtc_mask; |
12347 | encoder->base.possible_clones = | |
66a9278e | 12348 | intel_encoder_clones(encoder); |
79e53945 | 12349 | } |
47356eb6 | 12350 | |
dde86e2d | 12351 | intel_init_pch_refclk(dev); |
270b3042 DV |
12352 | |
12353 | drm_helper_move_panel_connectors_to_head(dev); | |
79e53945 JB |
12354 | } |
12355 | ||
12356 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
12357 | { | |
60a5ca01 | 12358 | struct drm_device *dev = fb->dev; |
79e53945 | 12359 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
79e53945 | 12360 | |
ef2d633e | 12361 | drm_framebuffer_cleanup(fb); |
60a5ca01 | 12362 | mutex_lock(&dev->struct_mutex); |
ef2d633e | 12363 | WARN_ON(!intel_fb->obj->framebuffer_references--); |
60a5ca01 VS |
12364 | drm_gem_object_unreference(&intel_fb->obj->base); |
12365 | mutex_unlock(&dev->struct_mutex); | |
79e53945 JB |
12366 | kfree(intel_fb); |
12367 | } | |
12368 | ||
12369 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 12370 | struct drm_file *file, |
79e53945 JB |
12371 | unsigned int *handle) |
12372 | { | |
12373 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 12374 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 12375 | |
05394f39 | 12376 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
12377 | } |
12378 | ||
12379 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
12380 | .destroy = intel_user_framebuffer_destroy, | |
12381 | .create_handle = intel_user_framebuffer_create_handle, | |
12382 | }; | |
12383 | ||
b5ea642a DV |
12384 | static int intel_framebuffer_init(struct drm_device *dev, |
12385 | struct intel_framebuffer *intel_fb, | |
12386 | struct drm_mode_fb_cmd2 *mode_cmd, | |
12387 | struct drm_i915_gem_object *obj) | |
79e53945 | 12388 | { |
a57ce0b2 | 12389 | int aligned_height; |
a35cdaa0 | 12390 | int pitch_limit; |
79e53945 JB |
12391 | int ret; |
12392 | ||
dd4916c5 DV |
12393 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
12394 | ||
c16ed4be CW |
12395 | if (obj->tiling_mode == I915_TILING_Y) { |
12396 | DRM_DEBUG("hardware does not support tiling Y\n"); | |
57cd6508 | 12397 | return -EINVAL; |
c16ed4be | 12398 | } |
57cd6508 | 12399 | |
c16ed4be CW |
12400 | if (mode_cmd->pitches[0] & 63) { |
12401 | DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n", | |
12402 | mode_cmd->pitches[0]); | |
57cd6508 | 12403 | return -EINVAL; |
c16ed4be | 12404 | } |
57cd6508 | 12405 | |
a35cdaa0 CW |
12406 | if (INTEL_INFO(dev)->gen >= 5 && !IS_VALLEYVIEW(dev)) { |
12407 | pitch_limit = 32*1024; | |
12408 | } else if (INTEL_INFO(dev)->gen >= 4) { | |
12409 | if (obj->tiling_mode) | |
12410 | pitch_limit = 16*1024; | |
12411 | else | |
12412 | pitch_limit = 32*1024; | |
12413 | } else if (INTEL_INFO(dev)->gen >= 3) { | |
12414 | if (obj->tiling_mode) | |
12415 | pitch_limit = 8*1024; | |
12416 | else | |
12417 | pitch_limit = 16*1024; | |
12418 | } else | |
12419 | /* XXX DSPC is limited to 4k tiled */ | |
12420 | pitch_limit = 8*1024; | |
12421 | ||
12422 | if (mode_cmd->pitches[0] > pitch_limit) { | |
12423 | DRM_DEBUG("%s pitch (%d) must be at less than %d\n", | |
12424 | obj->tiling_mode ? "tiled" : "linear", | |
12425 | mode_cmd->pitches[0], pitch_limit); | |
5d7bd705 | 12426 | return -EINVAL; |
c16ed4be | 12427 | } |
5d7bd705 VS |
12428 | |
12429 | if (obj->tiling_mode != I915_TILING_NONE && | |
c16ed4be CW |
12430 | mode_cmd->pitches[0] != obj->stride) { |
12431 | DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n", | |
12432 | mode_cmd->pitches[0], obj->stride); | |
5d7bd705 | 12433 | return -EINVAL; |
c16ed4be | 12434 | } |
5d7bd705 | 12435 | |
57779d06 | 12436 | /* Reject formats not supported by any plane early. */ |
308e5bcb | 12437 | switch (mode_cmd->pixel_format) { |
57779d06 | 12438 | case DRM_FORMAT_C8: |
04b3924d VS |
12439 | case DRM_FORMAT_RGB565: |
12440 | case DRM_FORMAT_XRGB8888: | |
12441 | case DRM_FORMAT_ARGB8888: | |
57779d06 VS |
12442 | break; |
12443 | case DRM_FORMAT_XRGB1555: | |
12444 | case DRM_FORMAT_ARGB1555: | |
c16ed4be | 12445 | if (INTEL_INFO(dev)->gen > 3) { |
4ee62c76 VS |
12446 | DRM_DEBUG("unsupported pixel format: %s\n", |
12447 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 12448 | return -EINVAL; |
c16ed4be | 12449 | } |
57779d06 VS |
12450 | break; |
12451 | case DRM_FORMAT_XBGR8888: | |
12452 | case DRM_FORMAT_ABGR8888: | |
04b3924d VS |
12453 | case DRM_FORMAT_XRGB2101010: |
12454 | case DRM_FORMAT_ARGB2101010: | |
57779d06 VS |
12455 | case DRM_FORMAT_XBGR2101010: |
12456 | case DRM_FORMAT_ABGR2101010: | |
c16ed4be | 12457 | if (INTEL_INFO(dev)->gen < 4) { |
4ee62c76 VS |
12458 | DRM_DEBUG("unsupported pixel format: %s\n", |
12459 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 12460 | return -EINVAL; |
c16ed4be | 12461 | } |
b5626747 | 12462 | break; |
04b3924d VS |
12463 | case DRM_FORMAT_YUYV: |
12464 | case DRM_FORMAT_UYVY: | |
12465 | case DRM_FORMAT_YVYU: | |
12466 | case DRM_FORMAT_VYUY: | |
c16ed4be | 12467 | if (INTEL_INFO(dev)->gen < 5) { |
4ee62c76 VS |
12468 | DRM_DEBUG("unsupported pixel format: %s\n", |
12469 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 12470 | return -EINVAL; |
c16ed4be | 12471 | } |
57cd6508 CW |
12472 | break; |
12473 | default: | |
4ee62c76 VS |
12474 | DRM_DEBUG("unsupported pixel format: %s\n", |
12475 | drm_get_format_name(mode_cmd->pixel_format)); | |
57cd6508 CW |
12476 | return -EINVAL; |
12477 | } | |
12478 | ||
90f9a336 VS |
12479 | /* FIXME need to adjust LINOFF/TILEOFF accordingly. */ |
12480 | if (mode_cmd->offsets[0] != 0) | |
12481 | return -EINVAL; | |
12482 | ||
a57ce0b2 JB |
12483 | aligned_height = intel_align_height(dev, mode_cmd->height, |
12484 | obj->tiling_mode); | |
53155c0a DV |
12485 | /* FIXME drm helper for size checks (especially planar formats)? */ |
12486 | if (obj->base.size < aligned_height * mode_cmd->pitches[0]) | |
12487 | return -EINVAL; | |
12488 | ||
c7d73f6a DV |
12489 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); |
12490 | intel_fb->obj = obj; | |
80075d49 | 12491 | intel_fb->obj->framebuffer_references++; |
c7d73f6a | 12492 | |
79e53945 JB |
12493 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
12494 | if (ret) { | |
12495 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
12496 | return ret; | |
12497 | } | |
12498 | ||
79e53945 JB |
12499 | return 0; |
12500 | } | |
12501 | ||
79e53945 JB |
12502 | static struct drm_framebuffer * |
12503 | intel_user_framebuffer_create(struct drm_device *dev, | |
12504 | struct drm_file *filp, | |
308e5bcb | 12505 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 12506 | { |
05394f39 | 12507 | struct drm_i915_gem_object *obj; |
79e53945 | 12508 | |
308e5bcb JB |
12509 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
12510 | mode_cmd->handles[0])); | |
c8725226 | 12511 | if (&obj->base == NULL) |
cce13ff7 | 12512 | return ERR_PTR(-ENOENT); |
79e53945 | 12513 | |
d2dff872 | 12514 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
12515 | } |
12516 | ||
4520f53a | 12517 | #ifndef CONFIG_DRM_I915_FBDEV |
0632fef6 | 12518 | static inline void intel_fbdev_output_poll_changed(struct drm_device *dev) |
4520f53a DV |
12519 | { |
12520 | } | |
12521 | #endif | |
12522 | ||
79e53945 | 12523 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 12524 | .fb_create = intel_user_framebuffer_create, |
0632fef6 | 12525 | .output_poll_changed = intel_fbdev_output_poll_changed, |
79e53945 JB |
12526 | }; |
12527 | ||
e70236a8 JB |
12528 | /* Set up chip specific display functions */ |
12529 | static void intel_init_display(struct drm_device *dev) | |
12530 | { | |
12531 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12532 | ||
ee9300bb DV |
12533 | if (HAS_PCH_SPLIT(dev) || IS_G4X(dev)) |
12534 | dev_priv->display.find_dpll = g4x_find_best_dpll; | |
ef9348c8 CML |
12535 | else if (IS_CHERRYVIEW(dev)) |
12536 | dev_priv->display.find_dpll = chv_find_best_dpll; | |
ee9300bb DV |
12537 | else if (IS_VALLEYVIEW(dev)) |
12538 | dev_priv->display.find_dpll = vlv_find_best_dpll; | |
12539 | else if (IS_PINEVIEW(dev)) | |
12540 | dev_priv->display.find_dpll = pnv_find_best_dpll; | |
12541 | else | |
12542 | dev_priv->display.find_dpll = i9xx_find_best_dpll; | |
12543 | ||
affa9354 | 12544 | if (HAS_DDI(dev)) { |
0e8ffe1b | 12545 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; |
4c6baa59 | 12546 | dev_priv->display.get_plane_config = ironlake_get_plane_config; |
09b4ddf9 | 12547 | dev_priv->display.crtc_mode_set = haswell_crtc_mode_set; |
4f771f10 PZ |
12548 | dev_priv->display.crtc_enable = haswell_crtc_enable; |
12549 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
df8ad70c | 12550 | dev_priv->display.off = ironlake_crtc_off; |
70d21f0e DL |
12551 | if (INTEL_INFO(dev)->gen >= 9) |
12552 | dev_priv->display.update_primary_plane = | |
12553 | skylake_update_primary_plane; | |
12554 | else | |
12555 | dev_priv->display.update_primary_plane = | |
12556 | ironlake_update_primary_plane; | |
09b4ddf9 | 12557 | } else if (HAS_PCH_SPLIT(dev)) { |
0e8ffe1b | 12558 | dev_priv->display.get_pipe_config = ironlake_get_pipe_config; |
4c6baa59 | 12559 | dev_priv->display.get_plane_config = ironlake_get_plane_config; |
f564048e | 12560 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
76e5a89c DV |
12561 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
12562 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
ee7b9f93 | 12563 | dev_priv->display.off = ironlake_crtc_off; |
262ca2b0 MR |
12564 | dev_priv->display.update_primary_plane = |
12565 | ironlake_update_primary_plane; | |
89b667f8 JB |
12566 | } else if (IS_VALLEYVIEW(dev)) { |
12567 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; | |
1ad292b5 | 12568 | dev_priv->display.get_plane_config = i9xx_get_plane_config; |
89b667f8 JB |
12569 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
12570 | dev_priv->display.crtc_enable = valleyview_crtc_enable; | |
12571 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
12572 | dev_priv->display.off = i9xx_crtc_off; | |
262ca2b0 MR |
12573 | dev_priv->display.update_primary_plane = |
12574 | i9xx_update_primary_plane; | |
f564048e | 12575 | } else { |
0e8ffe1b | 12576 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; |
1ad292b5 | 12577 | dev_priv->display.get_plane_config = i9xx_get_plane_config; |
f564048e | 12578 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
76e5a89c DV |
12579 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
12580 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
ee7b9f93 | 12581 | dev_priv->display.off = i9xx_crtc_off; |
262ca2b0 MR |
12582 | dev_priv->display.update_primary_plane = |
12583 | i9xx_update_primary_plane; | |
f564048e | 12584 | } |
e70236a8 | 12585 | |
e70236a8 | 12586 | /* Returns the core display clock speed */ |
25eb05fc JB |
12587 | if (IS_VALLEYVIEW(dev)) |
12588 | dev_priv->display.get_display_clock_speed = | |
12589 | valleyview_get_display_clock_speed; | |
12590 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) | |
e70236a8 JB |
12591 | dev_priv->display.get_display_clock_speed = |
12592 | i945_get_display_clock_speed; | |
12593 | else if (IS_I915G(dev)) | |
12594 | dev_priv->display.get_display_clock_speed = | |
12595 | i915_get_display_clock_speed; | |
257a7ffc | 12596 | else if (IS_I945GM(dev) || IS_845G(dev)) |
e70236a8 JB |
12597 | dev_priv->display.get_display_clock_speed = |
12598 | i9xx_misc_get_display_clock_speed; | |
257a7ffc DV |
12599 | else if (IS_PINEVIEW(dev)) |
12600 | dev_priv->display.get_display_clock_speed = | |
12601 | pnv_get_display_clock_speed; | |
e70236a8 JB |
12602 | else if (IS_I915GM(dev)) |
12603 | dev_priv->display.get_display_clock_speed = | |
12604 | i915gm_get_display_clock_speed; | |
12605 | else if (IS_I865G(dev)) | |
12606 | dev_priv->display.get_display_clock_speed = | |
12607 | i865_get_display_clock_speed; | |
f0f8a9ce | 12608 | else if (IS_I85X(dev)) |
e70236a8 JB |
12609 | dev_priv->display.get_display_clock_speed = |
12610 | i855_get_display_clock_speed; | |
12611 | else /* 852, 830 */ | |
12612 | dev_priv->display.get_display_clock_speed = | |
12613 | i830_get_display_clock_speed; | |
12614 | ||
3bb11b53 | 12615 | if (IS_G4X(dev)) { |
e0dac65e | 12616 | dev_priv->display.write_eld = g4x_write_eld; |
3bb11b53 SJ |
12617 | } else if (IS_GEN5(dev)) { |
12618 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; | |
12619 | dev_priv->display.write_eld = ironlake_write_eld; | |
12620 | } else if (IS_GEN6(dev)) { | |
12621 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; | |
12622 | dev_priv->display.write_eld = ironlake_write_eld; | |
12623 | dev_priv->display.modeset_global_resources = | |
12624 | snb_modeset_global_resources; | |
12625 | } else if (IS_IVYBRIDGE(dev)) { | |
12626 | /* FIXME: detect B0+ stepping and use auto training */ | |
12627 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
12628 | dev_priv->display.write_eld = ironlake_write_eld; | |
12629 | dev_priv->display.modeset_global_resources = | |
12630 | ivb_modeset_global_resources; | |
059b2fe9 | 12631 | } else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
3bb11b53 SJ |
12632 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; |
12633 | dev_priv->display.write_eld = haswell_write_eld; | |
12634 | dev_priv->display.modeset_global_resources = | |
12635 | haswell_modeset_global_resources; | |
30a970c6 JB |
12636 | } else if (IS_VALLEYVIEW(dev)) { |
12637 | dev_priv->display.modeset_global_resources = | |
12638 | valleyview_modeset_global_resources; | |
9ca2fe73 | 12639 | dev_priv->display.write_eld = ironlake_write_eld; |
02c29259 S |
12640 | } else if (INTEL_INFO(dev)->gen >= 9) { |
12641 | dev_priv->display.write_eld = haswell_write_eld; | |
12642 | dev_priv->display.modeset_global_resources = | |
12643 | haswell_modeset_global_resources; | |
e70236a8 | 12644 | } |
8c9f3aaf JB |
12645 | |
12646 | /* Default just returns -ENODEV to indicate unsupported */ | |
12647 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
12648 | ||
12649 | switch (INTEL_INFO(dev)->gen) { | |
12650 | case 2: | |
12651 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
12652 | break; | |
12653 | ||
12654 | case 3: | |
12655 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
12656 | break; | |
12657 | ||
12658 | case 4: | |
12659 | case 5: | |
12660 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
12661 | break; | |
12662 | ||
12663 | case 6: | |
12664 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
12665 | break; | |
7c9017e5 | 12666 | case 7: |
4e0bbc31 | 12667 | case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */ |
7c9017e5 JB |
12668 | dev_priv->display.queue_flip = intel_gen7_queue_flip; |
12669 | break; | |
8c9f3aaf | 12670 | } |
7bd688cd JN |
12671 | |
12672 | intel_panel_init_backlight_funcs(dev); | |
e39b999a VS |
12673 | |
12674 | mutex_init(&dev_priv->pps_mutex); | |
e70236a8 JB |
12675 | } |
12676 | ||
b690e96c JB |
12677 | /* |
12678 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
12679 | * resume, or other times. This quirk makes sure that's the case for | |
12680 | * affected systems. | |
12681 | */ | |
0206e353 | 12682 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
12683 | { |
12684 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12685 | ||
12686 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 12687 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
12688 | } |
12689 | ||
b6b5d049 VS |
12690 | static void quirk_pipeb_force(struct drm_device *dev) |
12691 | { | |
12692 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12693 | ||
12694 | dev_priv->quirks |= QUIRK_PIPEB_FORCE; | |
12695 | DRM_INFO("applying pipe b force quirk\n"); | |
12696 | } | |
12697 | ||
435793df KP |
12698 | /* |
12699 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
12700 | */ | |
12701 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
12702 | { | |
12703 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12704 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 12705 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
12706 | } |
12707 | ||
4dca20ef | 12708 | /* |
5a15ab5b CE |
12709 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
12710 | * brightness value | |
4dca20ef CE |
12711 | */ |
12712 | static void quirk_invert_brightness(struct drm_device *dev) | |
12713 | { | |
12714 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12715 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 12716 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
12717 | } |
12718 | ||
9c72cc6f SD |
12719 | /* Some VBT's incorrectly indicate no backlight is present */ |
12720 | static void quirk_backlight_present(struct drm_device *dev) | |
12721 | { | |
12722 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12723 | dev_priv->quirks |= QUIRK_BACKLIGHT_PRESENT; | |
12724 | DRM_INFO("applying backlight present quirk\n"); | |
12725 | } | |
12726 | ||
b690e96c JB |
12727 | struct intel_quirk { |
12728 | int device; | |
12729 | int subsystem_vendor; | |
12730 | int subsystem_device; | |
12731 | void (*hook)(struct drm_device *dev); | |
12732 | }; | |
12733 | ||
5f85f176 EE |
12734 | /* For systems that don't have a meaningful PCI subdevice/subvendor ID */ |
12735 | struct intel_dmi_quirk { | |
12736 | void (*hook)(struct drm_device *dev); | |
12737 | const struct dmi_system_id (*dmi_id_list)[]; | |
12738 | }; | |
12739 | ||
12740 | static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) | |
12741 | { | |
12742 | DRM_INFO("Backlight polarity reversed on %s\n", id->ident); | |
12743 | return 1; | |
12744 | } | |
12745 | ||
12746 | static const struct intel_dmi_quirk intel_dmi_quirks[] = { | |
12747 | { | |
12748 | .dmi_id_list = &(const struct dmi_system_id[]) { | |
12749 | { | |
12750 | .callback = intel_dmi_reverse_brightness, | |
12751 | .ident = "NCR Corporation", | |
12752 | .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), | |
12753 | DMI_MATCH(DMI_PRODUCT_NAME, ""), | |
12754 | }, | |
12755 | }, | |
12756 | { } /* terminating entry */ | |
12757 | }, | |
12758 | .hook = quirk_invert_brightness, | |
12759 | }, | |
12760 | }; | |
12761 | ||
c43b5634 | 12762 | static struct intel_quirk intel_quirks[] = { |
b690e96c | 12763 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
0206e353 | 12764 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
b690e96c | 12765 | |
b690e96c JB |
12766 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
12767 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
12768 | ||
b690e96c JB |
12769 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
12770 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
12771 | ||
5f080c0f VS |
12772 | /* 830 needs to leave pipe A & dpll A up */ |
12773 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
12774 | ||
b6b5d049 VS |
12775 | /* 830 needs to leave pipe B & dpll B up */ |
12776 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipeb_force }, | |
12777 | ||
435793df KP |
12778 | /* Lenovo U160 cannot use SSC on LVDS */ |
12779 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
12780 | |
12781 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
12782 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b | 12783 | |
be505f64 AH |
12784 | /* Acer Aspire 5734Z must invert backlight brightness */ |
12785 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
12786 | ||
12787 | /* Acer/eMachines G725 */ | |
12788 | { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness }, | |
12789 | ||
12790 | /* Acer/eMachines e725 */ | |
12791 | { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness }, | |
12792 | ||
12793 | /* Acer/Packard Bell NCL20 */ | |
12794 | { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness }, | |
12795 | ||
12796 | /* Acer Aspire 4736Z */ | |
12797 | { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness }, | |
0f540c3a JN |
12798 | |
12799 | /* Acer Aspire 5336 */ | |
12800 | { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness }, | |
2e93a1aa SD |
12801 | |
12802 | /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */ | |
12803 | { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present }, | |
d4967d8c | 12804 | |
dfb3d47b SD |
12805 | /* Acer C720 Chromebook (Core i3 4005U) */ |
12806 | { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present }, | |
12807 | ||
d4967d8c SD |
12808 | /* Toshiba CB35 Chromebook (Celeron 2955U) */ |
12809 | { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present }, | |
724cb06f SD |
12810 | |
12811 | /* HP Chromebook 14 (Celeron 2955U) */ | |
12812 | { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present }, | |
b690e96c JB |
12813 | }; |
12814 | ||
12815 | static void intel_init_quirks(struct drm_device *dev) | |
12816 | { | |
12817 | struct pci_dev *d = dev->pdev; | |
12818 | int i; | |
12819 | ||
12820 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
12821 | struct intel_quirk *q = &intel_quirks[i]; | |
12822 | ||
12823 | if (d->device == q->device && | |
12824 | (d->subsystem_vendor == q->subsystem_vendor || | |
12825 | q->subsystem_vendor == PCI_ANY_ID) && | |
12826 | (d->subsystem_device == q->subsystem_device || | |
12827 | q->subsystem_device == PCI_ANY_ID)) | |
12828 | q->hook(dev); | |
12829 | } | |
5f85f176 EE |
12830 | for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { |
12831 | if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) | |
12832 | intel_dmi_quirks[i].hook(dev); | |
12833 | } | |
b690e96c JB |
12834 | } |
12835 | ||
9cce37f4 JB |
12836 | /* Disable the VGA plane that we never use */ |
12837 | static void i915_disable_vga(struct drm_device *dev) | |
12838 | { | |
12839 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12840 | u8 sr1; | |
766aa1c4 | 12841 | u32 vga_reg = i915_vgacntrl_reg(dev); |
9cce37f4 | 12842 | |
2b37c616 | 12843 | /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */ |
9cce37f4 | 12844 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); |
3fdcf431 | 12845 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
12846 | sr1 = inb(VGA_SR_DATA); |
12847 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
12848 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
12849 | udelay(300); | |
12850 | ||
69769f9a VS |
12851 | /* |
12852 | * Fujitsu-Siemens Lifebook S6010 (830) has problems resuming | |
12853 | * from S3 without preserving (some of?) the other bits. | |
12854 | */ | |
12855 | I915_WRITE(vga_reg, dev_priv->bios_vgacntr | VGA_DISP_DISABLE); | |
9cce37f4 JB |
12856 | POSTING_READ(vga_reg); |
12857 | } | |
12858 | ||
f817586c DV |
12859 | void intel_modeset_init_hw(struct drm_device *dev) |
12860 | { | |
a8f78b58 ED |
12861 | intel_prepare_ddi(dev); |
12862 | ||
f8bf63fd VS |
12863 | if (IS_VALLEYVIEW(dev)) |
12864 | vlv_update_cdclk(dev); | |
12865 | ||
f817586c DV |
12866 | intel_init_clock_gating(dev); |
12867 | ||
8090c6b9 | 12868 | intel_enable_gt_powersave(dev); |
f817586c DV |
12869 | } |
12870 | ||
79e53945 JB |
12871 | void intel_modeset_init(struct drm_device *dev) |
12872 | { | |
652c393a | 12873 | struct drm_i915_private *dev_priv = dev->dev_private; |
1fe47785 | 12874 | int sprite, ret; |
8cc87b75 | 12875 | enum pipe pipe; |
46f297fb | 12876 | struct intel_crtc *crtc; |
79e53945 JB |
12877 | |
12878 | drm_mode_config_init(dev); | |
12879 | ||
12880 | dev->mode_config.min_width = 0; | |
12881 | dev->mode_config.min_height = 0; | |
12882 | ||
019d96cb DA |
12883 | dev->mode_config.preferred_depth = 24; |
12884 | dev->mode_config.prefer_shadow = 1; | |
12885 | ||
e6ecefaa | 12886 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 12887 | |
b690e96c JB |
12888 | intel_init_quirks(dev); |
12889 | ||
1fa61106 ED |
12890 | intel_init_pm(dev); |
12891 | ||
e3c74757 BW |
12892 | if (INTEL_INFO(dev)->num_pipes == 0) |
12893 | return; | |
12894 | ||
e70236a8 JB |
12895 | intel_init_display(dev); |
12896 | ||
a6c45cf0 CW |
12897 | if (IS_GEN2(dev)) { |
12898 | dev->mode_config.max_width = 2048; | |
12899 | dev->mode_config.max_height = 2048; | |
12900 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
12901 | dev->mode_config.max_width = 4096; |
12902 | dev->mode_config.max_height = 4096; | |
79e53945 | 12903 | } else { |
a6c45cf0 CW |
12904 | dev->mode_config.max_width = 8192; |
12905 | dev->mode_config.max_height = 8192; | |
79e53945 | 12906 | } |
068be561 | 12907 | |
dc41c154 VS |
12908 | if (IS_845G(dev) || IS_I865G(dev)) { |
12909 | dev->mode_config.cursor_width = IS_845G(dev) ? 64 : 512; | |
12910 | dev->mode_config.cursor_height = 1023; | |
12911 | } else if (IS_GEN2(dev)) { | |
068be561 DL |
12912 | dev->mode_config.cursor_width = GEN2_CURSOR_WIDTH; |
12913 | dev->mode_config.cursor_height = GEN2_CURSOR_HEIGHT; | |
12914 | } else { | |
12915 | dev->mode_config.cursor_width = MAX_CURSOR_WIDTH; | |
12916 | dev->mode_config.cursor_height = MAX_CURSOR_HEIGHT; | |
12917 | } | |
12918 | ||
5d4545ae | 12919 | dev->mode_config.fb_base = dev_priv->gtt.mappable_base; |
79e53945 | 12920 | |
28c97730 | 12921 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
7eb552ae BW |
12922 | INTEL_INFO(dev)->num_pipes, |
12923 | INTEL_INFO(dev)->num_pipes > 1 ? "s" : ""); | |
79e53945 | 12924 | |
055e393f | 12925 | for_each_pipe(dev_priv, pipe) { |
8cc87b75 | 12926 | intel_crtc_init(dev, pipe); |
1fe47785 DL |
12927 | for_each_sprite(pipe, sprite) { |
12928 | ret = intel_plane_init(dev, pipe, sprite); | |
7f1f3851 | 12929 | if (ret) |
06da8da2 | 12930 | DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n", |
1fe47785 | 12931 | pipe_name(pipe), sprite_name(pipe, sprite), ret); |
7f1f3851 | 12932 | } |
79e53945 JB |
12933 | } |
12934 | ||
f42bb70d JB |
12935 | intel_init_dpio(dev); |
12936 | ||
e72f9fbf | 12937 | intel_shared_dpll_init(dev); |
ee7b9f93 | 12938 | |
69769f9a VS |
12939 | /* save the BIOS value before clobbering it */ |
12940 | dev_priv->bios_vgacntr = I915_READ(i915_vgacntrl_reg(dev)); | |
9cce37f4 JB |
12941 | /* Just disable it once at startup */ |
12942 | i915_disable_vga(dev); | |
79e53945 | 12943 | intel_setup_outputs(dev); |
11be49eb CW |
12944 | |
12945 | /* Just in case the BIOS is doing something questionable. */ | |
12946 | intel_disable_fbc(dev); | |
fa9fa083 | 12947 | |
6e9f798d | 12948 | drm_modeset_lock_all(dev); |
fa9fa083 | 12949 | intel_modeset_setup_hw_state(dev, false); |
6e9f798d | 12950 | drm_modeset_unlock_all(dev); |
46f297fb | 12951 | |
d3fcc808 | 12952 | for_each_intel_crtc(dev, crtc) { |
46f297fb JB |
12953 | if (!crtc->active) |
12954 | continue; | |
12955 | ||
46f297fb | 12956 | /* |
46f297fb JB |
12957 | * Note that reserving the BIOS fb up front prevents us |
12958 | * from stuffing other stolen allocations like the ring | |
12959 | * on top. This prevents some ugliness at boot time, and | |
12960 | * can even allow for smooth boot transitions if the BIOS | |
12961 | * fb is large enough for the active pipe configuration. | |
12962 | */ | |
12963 | if (dev_priv->display.get_plane_config) { | |
12964 | dev_priv->display.get_plane_config(crtc, | |
12965 | &crtc->plane_config); | |
12966 | /* | |
12967 | * If the fb is shared between multiple heads, we'll | |
12968 | * just get the first one. | |
12969 | */ | |
484b41dd | 12970 | intel_find_plane_obj(crtc, &crtc->plane_config); |
46f297fb | 12971 | } |
46f297fb | 12972 | } |
2c7111db CW |
12973 | } |
12974 | ||
7fad798e DV |
12975 | static void intel_enable_pipe_a(struct drm_device *dev) |
12976 | { | |
12977 | struct intel_connector *connector; | |
12978 | struct drm_connector *crt = NULL; | |
12979 | struct intel_load_detect_pipe load_detect_temp; | |
208bf9fd | 12980 | struct drm_modeset_acquire_ctx *ctx = dev->mode_config.acquire_ctx; |
7fad798e DV |
12981 | |
12982 | /* We can't just switch on the pipe A, we need to set things up with a | |
12983 | * proper mode and output configuration. As a gross hack, enable pipe A | |
12984 | * by enabling the load detect pipe once. */ | |
12985 | list_for_each_entry(connector, | |
12986 | &dev->mode_config.connector_list, | |
12987 | base.head) { | |
12988 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { | |
12989 | crt = &connector->base; | |
12990 | break; | |
12991 | } | |
12992 | } | |
12993 | ||
12994 | if (!crt) | |
12995 | return; | |
12996 | ||
208bf9fd VS |
12997 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp, ctx)) |
12998 | intel_release_load_detect_pipe(crt, &load_detect_temp); | |
7fad798e DV |
12999 | } |
13000 | ||
fa555837 DV |
13001 | static bool |
13002 | intel_check_plane_mapping(struct intel_crtc *crtc) | |
13003 | { | |
7eb552ae BW |
13004 | struct drm_device *dev = crtc->base.dev; |
13005 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 DV |
13006 | u32 reg, val; |
13007 | ||
7eb552ae | 13008 | if (INTEL_INFO(dev)->num_pipes == 1) |
fa555837 DV |
13009 | return true; |
13010 | ||
13011 | reg = DSPCNTR(!crtc->plane); | |
13012 | val = I915_READ(reg); | |
13013 | ||
13014 | if ((val & DISPLAY_PLANE_ENABLE) && | |
13015 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
13016 | return false; | |
13017 | ||
13018 | return true; | |
13019 | } | |
13020 | ||
24929352 DV |
13021 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
13022 | { | |
13023 | struct drm_device *dev = crtc->base.dev; | |
13024 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 | 13025 | u32 reg; |
24929352 | 13026 | |
24929352 | 13027 | /* Clear any frame start delays used for debugging left by the BIOS */ |
3b117c8f | 13028 | reg = PIPECONF(crtc->config.cpu_transcoder); |
24929352 DV |
13029 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); |
13030 | ||
d3eaf884 | 13031 | /* restore vblank interrupts to correct state */ |
d297e103 VS |
13032 | if (crtc->active) { |
13033 | update_scanline_offset(crtc); | |
d3eaf884 | 13034 | drm_vblank_on(dev, crtc->pipe); |
d297e103 | 13035 | } else |
d3eaf884 VS |
13036 | drm_vblank_off(dev, crtc->pipe); |
13037 | ||
24929352 | 13038 | /* We need to sanitize the plane -> pipe mapping first because this will |
fa555837 DV |
13039 | * disable the crtc (and hence change the state) if it is wrong. Note |
13040 | * that gen4+ has a fixed plane -> pipe mapping. */ | |
13041 | if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) { | |
24929352 DV |
13042 | struct intel_connector *connector; |
13043 | bool plane; | |
13044 | ||
24929352 DV |
13045 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", |
13046 | crtc->base.base.id); | |
13047 | ||
13048 | /* Pipe has the wrong plane attached and the plane is active. | |
13049 | * Temporarily change the plane mapping and disable everything | |
13050 | * ... */ | |
13051 | plane = crtc->plane; | |
13052 | crtc->plane = !plane; | |
9c8958bc | 13053 | crtc->primary_enabled = true; |
24929352 DV |
13054 | dev_priv->display.crtc_disable(&crtc->base); |
13055 | crtc->plane = plane; | |
13056 | ||
13057 | /* ... and break all links. */ | |
13058 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
13059 | base.head) { | |
13060 | if (connector->encoder->base.crtc != &crtc->base) | |
13061 | continue; | |
13062 | ||
7f1950fb EE |
13063 | connector->base.dpms = DRM_MODE_DPMS_OFF; |
13064 | connector->base.encoder = NULL; | |
24929352 | 13065 | } |
7f1950fb EE |
13066 | /* multiple connectors may have the same encoder: |
13067 | * handle them and break crtc link separately */ | |
13068 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
13069 | base.head) | |
13070 | if (connector->encoder->base.crtc == &crtc->base) { | |
13071 | connector->encoder->base.crtc = NULL; | |
13072 | connector->encoder->connectors_active = false; | |
13073 | } | |
24929352 DV |
13074 | |
13075 | WARN_ON(crtc->active); | |
13076 | crtc->base.enabled = false; | |
13077 | } | |
24929352 | 13078 | |
7fad798e DV |
13079 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
13080 | crtc->pipe == PIPE_A && !crtc->active) { | |
13081 | /* BIOS forgot to enable pipe A, this mostly happens after | |
13082 | * resume. Force-enable the pipe to fix this, the update_dpms | |
13083 | * call below we restore the pipe to the right state, but leave | |
13084 | * the required bits on. */ | |
13085 | intel_enable_pipe_a(dev); | |
13086 | } | |
13087 | ||
24929352 DV |
13088 | /* Adjust the state of the output pipe according to whether we |
13089 | * have active connectors/encoders. */ | |
13090 | intel_crtc_update_dpms(&crtc->base); | |
13091 | ||
13092 | if (crtc->active != crtc->base.enabled) { | |
13093 | struct intel_encoder *encoder; | |
13094 | ||
13095 | /* This can happen either due to bugs in the get_hw_state | |
13096 | * functions or because the pipe is force-enabled due to the | |
13097 | * pipe A quirk. */ | |
13098 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", | |
13099 | crtc->base.base.id, | |
13100 | crtc->base.enabled ? "enabled" : "disabled", | |
13101 | crtc->active ? "enabled" : "disabled"); | |
13102 | ||
13103 | crtc->base.enabled = crtc->active; | |
13104 | ||
13105 | /* Because we only establish the connector -> encoder -> | |
13106 | * crtc links if something is active, this means the | |
13107 | * crtc is now deactivated. Break the links. connector | |
13108 | * -> encoder links are only establish when things are | |
13109 | * actually up, hence no need to break them. */ | |
13110 | WARN_ON(crtc->active); | |
13111 | ||
13112 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { | |
13113 | WARN_ON(encoder->connectors_active); | |
13114 | encoder->base.crtc = NULL; | |
13115 | } | |
13116 | } | |
c5ab3bc0 | 13117 | |
a3ed6aad | 13118 | if (crtc->active || HAS_GMCH_DISPLAY(dev)) { |
4cc31489 DV |
13119 | /* |
13120 | * We start out with underrun reporting disabled to avoid races. | |
13121 | * For correct bookkeeping mark this on active crtcs. | |
13122 | * | |
c5ab3bc0 DV |
13123 | * Also on gmch platforms we dont have any hardware bits to |
13124 | * disable the underrun reporting. Which means we need to start | |
13125 | * out with underrun reporting disabled also on inactive pipes, | |
13126 | * since otherwise we'll complain about the garbage we read when | |
13127 | * e.g. coming up after runtime pm. | |
13128 | * | |
4cc31489 DV |
13129 | * No protection against concurrent access is required - at |
13130 | * worst a fifo underrun happens which also sets this to false. | |
13131 | */ | |
13132 | crtc->cpu_fifo_underrun_disabled = true; | |
13133 | crtc->pch_fifo_underrun_disabled = true; | |
13134 | } | |
24929352 DV |
13135 | } |
13136 | ||
13137 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
13138 | { | |
13139 | struct intel_connector *connector; | |
13140 | struct drm_device *dev = encoder->base.dev; | |
13141 | ||
13142 | /* We need to check both for a crtc link (meaning that the | |
13143 | * encoder is active and trying to read from a pipe) and the | |
13144 | * pipe itself being active. */ | |
13145 | bool has_active_crtc = encoder->base.crtc && | |
13146 | to_intel_crtc(encoder->base.crtc)->active; | |
13147 | ||
13148 | if (encoder->connectors_active && !has_active_crtc) { | |
13149 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", | |
13150 | encoder->base.base.id, | |
8e329a03 | 13151 | encoder->base.name); |
24929352 DV |
13152 | |
13153 | /* Connector is active, but has no active pipe. This is | |
13154 | * fallout from our resume register restoring. Disable | |
13155 | * the encoder manually again. */ | |
13156 | if (encoder->base.crtc) { | |
13157 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
13158 | encoder->base.base.id, | |
8e329a03 | 13159 | encoder->base.name); |
24929352 | 13160 | encoder->disable(encoder); |
a62d1497 VS |
13161 | if (encoder->post_disable) |
13162 | encoder->post_disable(encoder); | |
24929352 | 13163 | } |
7f1950fb EE |
13164 | encoder->base.crtc = NULL; |
13165 | encoder->connectors_active = false; | |
24929352 DV |
13166 | |
13167 | /* Inconsistent output/port/pipe state happens presumably due to | |
13168 | * a bug in one of the get_hw_state functions. Or someplace else | |
13169 | * in our code, like the register restore mess on resume. Clamp | |
13170 | * things to off as a safer default. */ | |
13171 | list_for_each_entry(connector, | |
13172 | &dev->mode_config.connector_list, | |
13173 | base.head) { | |
13174 | if (connector->encoder != encoder) | |
13175 | continue; | |
7f1950fb EE |
13176 | connector->base.dpms = DRM_MODE_DPMS_OFF; |
13177 | connector->base.encoder = NULL; | |
24929352 DV |
13178 | } |
13179 | } | |
13180 | /* Enabled encoders without active connectors will be fixed in | |
13181 | * the crtc fixup. */ | |
13182 | } | |
13183 | ||
04098753 | 13184 | void i915_redisable_vga_power_on(struct drm_device *dev) |
0fde901f KM |
13185 | { |
13186 | struct drm_i915_private *dev_priv = dev->dev_private; | |
766aa1c4 | 13187 | u32 vga_reg = i915_vgacntrl_reg(dev); |
0fde901f | 13188 | |
04098753 ID |
13189 | if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) { |
13190 | DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n"); | |
13191 | i915_disable_vga(dev); | |
13192 | } | |
13193 | } | |
13194 | ||
13195 | void i915_redisable_vga(struct drm_device *dev) | |
13196 | { | |
13197 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13198 | ||
8dc8a27c PZ |
13199 | /* This function can be called both from intel_modeset_setup_hw_state or |
13200 | * at a very early point in our resume sequence, where the power well | |
13201 | * structures are not yet restored. Since this function is at a very | |
13202 | * paranoid "someone might have enabled VGA while we were not looking" | |
13203 | * level, just check if the power well is enabled instead of trying to | |
13204 | * follow the "don't touch the power well if we don't need it" policy | |
13205 | * the rest of the driver uses. */ | |
f458ebbc | 13206 | if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_VGA)) |
8dc8a27c PZ |
13207 | return; |
13208 | ||
04098753 | 13209 | i915_redisable_vga_power_on(dev); |
0fde901f KM |
13210 | } |
13211 | ||
98ec7739 VS |
13212 | static bool primary_get_hw_state(struct intel_crtc *crtc) |
13213 | { | |
13214 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
13215 | ||
13216 | if (!crtc->active) | |
13217 | return false; | |
13218 | ||
13219 | return I915_READ(DSPCNTR(crtc->plane)) & DISPLAY_PLANE_ENABLE; | |
13220 | } | |
13221 | ||
30e984df | 13222 | static void intel_modeset_readout_hw_state(struct drm_device *dev) |
24929352 DV |
13223 | { |
13224 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13225 | enum pipe pipe; | |
24929352 DV |
13226 | struct intel_crtc *crtc; |
13227 | struct intel_encoder *encoder; | |
13228 | struct intel_connector *connector; | |
5358901f | 13229 | int i; |
24929352 | 13230 | |
d3fcc808 | 13231 | for_each_intel_crtc(dev, crtc) { |
88adfff1 | 13232 | memset(&crtc->config, 0, sizeof(crtc->config)); |
3b117c8f | 13233 | |
9953599b DV |
13234 | crtc->config.quirks |= PIPE_CONFIG_QUIRK_INHERITED_MODE; |
13235 | ||
0e8ffe1b DV |
13236 | crtc->active = dev_priv->display.get_pipe_config(crtc, |
13237 | &crtc->config); | |
24929352 DV |
13238 | |
13239 | crtc->base.enabled = crtc->active; | |
98ec7739 | 13240 | crtc->primary_enabled = primary_get_hw_state(crtc); |
24929352 DV |
13241 | |
13242 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
13243 | crtc->base.base.id, | |
13244 | crtc->active ? "enabled" : "disabled"); | |
13245 | } | |
13246 | ||
5358901f DV |
13247 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
13248 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
13249 | ||
13250 | pll->on = pll->get_hw_state(dev_priv, pll, &pll->hw_state); | |
13251 | pll->active = 0; | |
d3fcc808 | 13252 | for_each_intel_crtc(dev, crtc) { |
5358901f DV |
13253 | if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll) |
13254 | pll->active++; | |
13255 | } | |
13256 | pll->refcount = pll->active; | |
13257 | ||
35c95375 DV |
13258 | DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n", |
13259 | pll->name, pll->refcount, pll->on); | |
bd2bb1b9 PZ |
13260 | |
13261 | if (pll->refcount) | |
13262 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); | |
5358901f DV |
13263 | } |
13264 | ||
b2784e15 | 13265 | for_each_intel_encoder(dev, encoder) { |
24929352 DV |
13266 | pipe = 0; |
13267 | ||
13268 | if (encoder->get_hw_state(encoder, &pipe)) { | |
045ac3b5 JB |
13269 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
13270 | encoder->base.crtc = &crtc->base; | |
1d37b689 | 13271 | encoder->get_config(encoder, &crtc->config); |
24929352 DV |
13272 | } else { |
13273 | encoder->base.crtc = NULL; | |
13274 | } | |
13275 | ||
13276 | encoder->connectors_active = false; | |
6f2bcceb | 13277 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n", |
24929352 | 13278 | encoder->base.base.id, |
8e329a03 | 13279 | encoder->base.name, |
24929352 | 13280 | encoder->base.crtc ? "enabled" : "disabled", |
6f2bcceb | 13281 | pipe_name(pipe)); |
24929352 DV |
13282 | } |
13283 | ||
13284 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
13285 | base.head) { | |
13286 | if (connector->get_hw_state(connector)) { | |
13287 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
13288 | connector->encoder->connectors_active = true; | |
13289 | connector->base.encoder = &connector->encoder->base; | |
13290 | } else { | |
13291 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
13292 | connector->base.encoder = NULL; | |
13293 | } | |
13294 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
13295 | connector->base.base.id, | |
c23cc417 | 13296 | connector->base.name, |
24929352 DV |
13297 | connector->base.encoder ? "enabled" : "disabled"); |
13298 | } | |
30e984df DV |
13299 | } |
13300 | ||
13301 | /* Scan out the current hw modeset state, sanitizes it and maps it into the drm | |
13302 | * and i915 state tracking structures. */ | |
13303 | void intel_modeset_setup_hw_state(struct drm_device *dev, | |
13304 | bool force_restore) | |
13305 | { | |
13306 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13307 | enum pipe pipe; | |
30e984df DV |
13308 | struct intel_crtc *crtc; |
13309 | struct intel_encoder *encoder; | |
35c95375 | 13310 | int i; |
30e984df DV |
13311 | |
13312 | intel_modeset_readout_hw_state(dev); | |
24929352 | 13313 | |
babea61d JB |
13314 | /* |
13315 | * Now that we have the config, copy it to each CRTC struct | |
13316 | * Note that this could go away if we move to using crtc_config | |
13317 | * checking everywhere. | |
13318 | */ | |
d3fcc808 | 13319 | for_each_intel_crtc(dev, crtc) { |
d330a953 | 13320 | if (crtc->active && i915.fastboot) { |
f6a83288 | 13321 | intel_mode_from_pipe_config(&crtc->base.mode, &crtc->config); |
babea61d JB |
13322 | DRM_DEBUG_KMS("[CRTC:%d] found active mode: ", |
13323 | crtc->base.base.id); | |
13324 | drm_mode_debug_printmodeline(&crtc->base.mode); | |
13325 | } | |
13326 | } | |
13327 | ||
24929352 | 13328 | /* HW state is read out, now we need to sanitize this mess. */ |
b2784e15 | 13329 | for_each_intel_encoder(dev, encoder) { |
24929352 DV |
13330 | intel_sanitize_encoder(encoder); |
13331 | } | |
13332 | ||
055e393f | 13333 | for_each_pipe(dev_priv, pipe) { |
24929352 DV |
13334 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
13335 | intel_sanitize_crtc(crtc); | |
c0b03411 | 13336 | intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]"); |
24929352 | 13337 | } |
9a935856 | 13338 | |
35c95375 DV |
13339 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
13340 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
13341 | ||
13342 | if (!pll->on || pll->active) | |
13343 | continue; | |
13344 | ||
13345 | DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name); | |
13346 | ||
13347 | pll->disable(dev_priv, pll); | |
13348 | pll->on = false; | |
13349 | } | |
13350 | ||
96f90c54 | 13351 | if (HAS_PCH_SPLIT(dev)) |
243e6a44 VS |
13352 | ilk_wm_get_hw_state(dev); |
13353 | ||
45e2b5f6 | 13354 | if (force_restore) { |
7d0bc1ea VS |
13355 | i915_redisable_vga(dev); |
13356 | ||
f30da187 DV |
13357 | /* |
13358 | * We need to use raw interfaces for restoring state to avoid | |
13359 | * checking (bogus) intermediate states. | |
13360 | */ | |
055e393f | 13361 | for_each_pipe(dev_priv, pipe) { |
b5644d05 JB |
13362 | struct drm_crtc *crtc = |
13363 | dev_priv->pipe_to_crtc_mapping[pipe]; | |
f30da187 DV |
13364 | |
13365 | __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, | |
f4510a27 | 13366 | crtc->primary->fb); |
45e2b5f6 DV |
13367 | } |
13368 | } else { | |
13369 | intel_modeset_update_staged_output_state(dev); | |
13370 | } | |
8af6cf88 DV |
13371 | |
13372 | intel_modeset_check_state(dev); | |
2c7111db CW |
13373 | } |
13374 | ||
13375 | void intel_modeset_gem_init(struct drm_device *dev) | |
13376 | { | |
484b41dd | 13377 | struct drm_crtc *c; |
2ff8fde1 | 13378 | struct drm_i915_gem_object *obj; |
484b41dd | 13379 | |
ae48434c ID |
13380 | mutex_lock(&dev->struct_mutex); |
13381 | intel_init_gt_powersave(dev); | |
13382 | mutex_unlock(&dev->struct_mutex); | |
13383 | ||
1833b134 | 13384 | intel_modeset_init_hw(dev); |
02e792fb DV |
13385 | |
13386 | intel_setup_overlay(dev); | |
484b41dd JB |
13387 | |
13388 | /* | |
13389 | * Make sure any fbs we allocated at startup are properly | |
13390 | * pinned & fenced. When we do the allocation it's too early | |
13391 | * for this. | |
13392 | */ | |
13393 | mutex_lock(&dev->struct_mutex); | |
70e1e0ec | 13394 | for_each_crtc(dev, c) { |
2ff8fde1 MR |
13395 | obj = intel_fb_obj(c->primary->fb); |
13396 | if (obj == NULL) | |
484b41dd JB |
13397 | continue; |
13398 | ||
2ff8fde1 | 13399 | if (intel_pin_and_fence_fb_obj(dev, obj, NULL)) { |
484b41dd JB |
13400 | DRM_ERROR("failed to pin boot fb on pipe %d\n", |
13401 | to_intel_crtc(c)->pipe); | |
66e514c1 DA |
13402 | drm_framebuffer_unreference(c->primary->fb); |
13403 | c->primary->fb = NULL; | |
484b41dd JB |
13404 | } |
13405 | } | |
13406 | mutex_unlock(&dev->struct_mutex); | |
79e53945 JB |
13407 | } |
13408 | ||
4932e2c3 ID |
13409 | void intel_connector_unregister(struct intel_connector *intel_connector) |
13410 | { | |
13411 | struct drm_connector *connector = &intel_connector->base; | |
13412 | ||
13413 | intel_panel_destroy_backlight(connector); | |
34ea3d38 | 13414 | drm_connector_unregister(connector); |
4932e2c3 ID |
13415 | } |
13416 | ||
79e53945 JB |
13417 | void intel_modeset_cleanup(struct drm_device *dev) |
13418 | { | |
652c393a | 13419 | struct drm_i915_private *dev_priv = dev->dev_private; |
d9255d57 | 13420 | struct drm_connector *connector; |
652c393a | 13421 | |
fd0c0642 DV |
13422 | /* |
13423 | * Interrupts and polling as the first thing to avoid creating havoc. | |
13424 | * Too much stuff here (turning of rps, connectors, ...) would | |
13425 | * experience fancy races otherwise. | |
13426 | */ | |
2aeb7d3a | 13427 | intel_irq_uninstall(dev_priv); |
eb21b92b | 13428 | |
fd0c0642 DV |
13429 | /* |
13430 | * Due to the hpd irq storm handling the hotplug work can re-arm the | |
13431 | * poll handlers. Hence disable polling after hpd handling is shut down. | |
13432 | */ | |
f87ea761 | 13433 | drm_kms_helper_poll_fini(dev); |
fd0c0642 | 13434 | |
652c393a JB |
13435 | mutex_lock(&dev->struct_mutex); |
13436 | ||
723bfd70 JB |
13437 | intel_unregister_dsm_handler(); |
13438 | ||
973d04f9 | 13439 | intel_disable_fbc(dev); |
e70236a8 | 13440 | |
8090c6b9 | 13441 | intel_disable_gt_powersave(dev); |
0cdab21f | 13442 | |
930ebb46 DV |
13443 | ironlake_teardown_rc6(dev); |
13444 | ||
69341a5e KH |
13445 | mutex_unlock(&dev->struct_mutex); |
13446 | ||
1630fe75 CW |
13447 | /* flush any delayed tasks or pending work */ |
13448 | flush_scheduled_work(); | |
13449 | ||
db31af1d JN |
13450 | /* destroy the backlight and sysfs files before encoders/connectors */ |
13451 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
4932e2c3 ID |
13452 | struct intel_connector *intel_connector; |
13453 | ||
13454 | intel_connector = to_intel_connector(connector); | |
13455 | intel_connector->unregister(intel_connector); | |
db31af1d | 13456 | } |
d9255d57 | 13457 | |
79e53945 | 13458 | drm_mode_config_cleanup(dev); |
4d7bb011 DV |
13459 | |
13460 | intel_cleanup_overlay(dev); | |
ae48434c ID |
13461 | |
13462 | mutex_lock(&dev->struct_mutex); | |
13463 | intel_cleanup_gt_powersave(dev); | |
13464 | mutex_unlock(&dev->struct_mutex); | |
79e53945 JB |
13465 | } |
13466 | ||
f1c79df3 ZW |
13467 | /* |
13468 | * Return which encoder is currently attached for connector. | |
13469 | */ | |
df0e9248 | 13470 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 13471 | { |
df0e9248 CW |
13472 | return &intel_attached_encoder(connector)->base; |
13473 | } | |
f1c79df3 | 13474 | |
df0e9248 CW |
13475 | void intel_connector_attach_encoder(struct intel_connector *connector, |
13476 | struct intel_encoder *encoder) | |
13477 | { | |
13478 | connector->encoder = encoder; | |
13479 | drm_mode_connector_attach_encoder(&connector->base, | |
13480 | &encoder->base); | |
79e53945 | 13481 | } |
28d52043 DA |
13482 | |
13483 | /* | |
13484 | * set vga decode state - true == enable VGA decode | |
13485 | */ | |
13486 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
13487 | { | |
13488 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a885b3cc | 13489 | unsigned reg = INTEL_INFO(dev)->gen >= 6 ? SNB_GMCH_CTRL : INTEL_GMCH_CTRL; |
28d52043 DA |
13490 | u16 gmch_ctrl; |
13491 | ||
75fa041d CW |
13492 | if (pci_read_config_word(dev_priv->bridge_dev, reg, &gmch_ctrl)) { |
13493 | DRM_ERROR("failed to read control word\n"); | |
13494 | return -EIO; | |
13495 | } | |
13496 | ||
c0cc8a55 CW |
13497 | if (!!(gmch_ctrl & INTEL_GMCH_VGA_DISABLE) == !state) |
13498 | return 0; | |
13499 | ||
28d52043 DA |
13500 | if (state) |
13501 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
13502 | else | |
13503 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
75fa041d CW |
13504 | |
13505 | if (pci_write_config_word(dev_priv->bridge_dev, reg, gmch_ctrl)) { | |
13506 | DRM_ERROR("failed to write control word\n"); | |
13507 | return -EIO; | |
13508 | } | |
13509 | ||
28d52043 DA |
13510 | return 0; |
13511 | } | |
c4a1d9e4 | 13512 | |
c4a1d9e4 | 13513 | struct intel_display_error_state { |
ff57f1b0 PZ |
13514 | |
13515 | u32 power_well_driver; | |
13516 | ||
63b66e5b CW |
13517 | int num_transcoders; |
13518 | ||
c4a1d9e4 CW |
13519 | struct intel_cursor_error_state { |
13520 | u32 control; | |
13521 | u32 position; | |
13522 | u32 base; | |
13523 | u32 size; | |
52331309 | 13524 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
13525 | |
13526 | struct intel_pipe_error_state { | |
ddf9c536 | 13527 | bool power_domain_on; |
c4a1d9e4 | 13528 | u32 source; |
f301b1e1 | 13529 | u32 stat; |
52331309 | 13530 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
13531 | |
13532 | struct intel_plane_error_state { | |
13533 | u32 control; | |
13534 | u32 stride; | |
13535 | u32 size; | |
13536 | u32 pos; | |
13537 | u32 addr; | |
13538 | u32 surface; | |
13539 | u32 tile_offset; | |
52331309 | 13540 | } plane[I915_MAX_PIPES]; |
63b66e5b CW |
13541 | |
13542 | struct intel_transcoder_error_state { | |
ddf9c536 | 13543 | bool power_domain_on; |
63b66e5b CW |
13544 | enum transcoder cpu_transcoder; |
13545 | ||
13546 | u32 conf; | |
13547 | ||
13548 | u32 htotal; | |
13549 | u32 hblank; | |
13550 | u32 hsync; | |
13551 | u32 vtotal; | |
13552 | u32 vblank; | |
13553 | u32 vsync; | |
13554 | } transcoder[4]; | |
c4a1d9e4 CW |
13555 | }; |
13556 | ||
13557 | struct intel_display_error_state * | |
13558 | intel_display_capture_error_state(struct drm_device *dev) | |
13559 | { | |
fbee40df | 13560 | struct drm_i915_private *dev_priv = dev->dev_private; |
c4a1d9e4 | 13561 | struct intel_display_error_state *error; |
63b66e5b CW |
13562 | int transcoders[] = { |
13563 | TRANSCODER_A, | |
13564 | TRANSCODER_B, | |
13565 | TRANSCODER_C, | |
13566 | TRANSCODER_EDP, | |
13567 | }; | |
c4a1d9e4 CW |
13568 | int i; |
13569 | ||
63b66e5b CW |
13570 | if (INTEL_INFO(dev)->num_pipes == 0) |
13571 | return NULL; | |
13572 | ||
9d1cb914 | 13573 | error = kzalloc(sizeof(*error), GFP_ATOMIC); |
c4a1d9e4 CW |
13574 | if (error == NULL) |
13575 | return NULL; | |
13576 | ||
190be112 | 13577 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
ff57f1b0 PZ |
13578 | error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER); |
13579 | ||
055e393f | 13580 | for_each_pipe(dev_priv, i) { |
ddf9c536 | 13581 | error->pipe[i].power_domain_on = |
f458ebbc DV |
13582 | __intel_display_power_is_enabled(dev_priv, |
13583 | POWER_DOMAIN_PIPE(i)); | |
ddf9c536 | 13584 | if (!error->pipe[i].power_domain_on) |
9d1cb914 PZ |
13585 | continue; |
13586 | ||
5efb3e28 VS |
13587 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
13588 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
13589 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
c4a1d9e4 CW |
13590 | |
13591 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
13592 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
80ca378b | 13593 | if (INTEL_INFO(dev)->gen <= 3) { |
51889b35 | 13594 | error->plane[i].size = I915_READ(DSPSIZE(i)); |
80ca378b PZ |
13595 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
13596 | } | |
ca291363 PZ |
13597 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
13598 | error->plane[i].addr = I915_READ(DSPADDR(i)); | |
c4a1d9e4 CW |
13599 | if (INTEL_INFO(dev)->gen >= 4) { |
13600 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
13601 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
13602 | } | |
13603 | ||
c4a1d9e4 | 13604 | error->pipe[i].source = I915_READ(PIPESRC(i)); |
f301b1e1 | 13605 | |
3abfce77 | 13606 | if (HAS_GMCH_DISPLAY(dev)) |
f301b1e1 | 13607 | error->pipe[i].stat = I915_READ(PIPESTAT(i)); |
63b66e5b CW |
13608 | } |
13609 | ||
13610 | error->num_transcoders = INTEL_INFO(dev)->num_pipes; | |
13611 | if (HAS_DDI(dev_priv->dev)) | |
13612 | error->num_transcoders++; /* Account for eDP. */ | |
13613 | ||
13614 | for (i = 0; i < error->num_transcoders; i++) { | |
13615 | enum transcoder cpu_transcoder = transcoders[i]; | |
13616 | ||
ddf9c536 | 13617 | error->transcoder[i].power_domain_on = |
f458ebbc | 13618 | __intel_display_power_is_enabled(dev_priv, |
38cc1daf | 13619 | POWER_DOMAIN_TRANSCODER(cpu_transcoder)); |
ddf9c536 | 13620 | if (!error->transcoder[i].power_domain_on) |
9d1cb914 PZ |
13621 | continue; |
13622 | ||
63b66e5b CW |
13623 | error->transcoder[i].cpu_transcoder = cpu_transcoder; |
13624 | ||
13625 | error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder)); | |
13626 | error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder)); | |
13627 | error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder)); | |
13628 | error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder)); | |
13629 | error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder)); | |
13630 | error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder)); | |
13631 | error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder)); | |
c4a1d9e4 CW |
13632 | } |
13633 | ||
13634 | return error; | |
13635 | } | |
13636 | ||
edc3d884 MK |
13637 | #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__) |
13638 | ||
c4a1d9e4 | 13639 | void |
edc3d884 | 13640 | intel_display_print_error_state(struct drm_i915_error_state_buf *m, |
c4a1d9e4 CW |
13641 | struct drm_device *dev, |
13642 | struct intel_display_error_state *error) | |
13643 | { | |
055e393f | 13644 | struct drm_i915_private *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
13645 | int i; |
13646 | ||
63b66e5b CW |
13647 | if (!error) |
13648 | return; | |
13649 | ||
edc3d884 | 13650 | err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes); |
190be112 | 13651 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
edc3d884 | 13652 | err_printf(m, "PWR_WELL_CTL2: %08x\n", |
ff57f1b0 | 13653 | error->power_well_driver); |
055e393f | 13654 | for_each_pipe(dev_priv, i) { |
edc3d884 | 13655 | err_printf(m, "Pipe [%d]:\n", i); |
ddf9c536 ID |
13656 | err_printf(m, " Power: %s\n", |
13657 | error->pipe[i].power_domain_on ? "on" : "off"); | |
edc3d884 | 13658 | err_printf(m, " SRC: %08x\n", error->pipe[i].source); |
f301b1e1 | 13659 | err_printf(m, " STAT: %08x\n", error->pipe[i].stat); |
edc3d884 MK |
13660 | |
13661 | err_printf(m, "Plane [%d]:\n", i); | |
13662 | err_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
13663 | err_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
80ca378b | 13664 | if (INTEL_INFO(dev)->gen <= 3) { |
edc3d884 MK |
13665 | err_printf(m, " SIZE: %08x\n", error->plane[i].size); |
13666 | err_printf(m, " POS: %08x\n", error->plane[i].pos); | |
80ca378b | 13667 | } |
4b71a570 | 13668 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
edc3d884 | 13669 | err_printf(m, " ADDR: %08x\n", error->plane[i].addr); |
c4a1d9e4 | 13670 | if (INTEL_INFO(dev)->gen >= 4) { |
edc3d884 MK |
13671 | err_printf(m, " SURF: %08x\n", error->plane[i].surface); |
13672 | err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
c4a1d9e4 CW |
13673 | } |
13674 | ||
edc3d884 MK |
13675 | err_printf(m, "Cursor [%d]:\n", i); |
13676 | err_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
13677 | err_printf(m, " POS: %08x\n", error->cursor[i].position); | |
13678 | err_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
c4a1d9e4 | 13679 | } |
63b66e5b CW |
13680 | |
13681 | for (i = 0; i < error->num_transcoders; i++) { | |
1cf84bb6 | 13682 | err_printf(m, "CPU transcoder: %c\n", |
63b66e5b | 13683 | transcoder_name(error->transcoder[i].cpu_transcoder)); |
ddf9c536 ID |
13684 | err_printf(m, " Power: %s\n", |
13685 | error->transcoder[i].power_domain_on ? "on" : "off"); | |
63b66e5b CW |
13686 | err_printf(m, " CONF: %08x\n", error->transcoder[i].conf); |
13687 | err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal); | |
13688 | err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank); | |
13689 | err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync); | |
13690 | err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal); | |
13691 | err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank); | |
13692 | err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync); | |
13693 | } | |
c4a1d9e4 | 13694 | } |
e2fcdaa9 VS |
13695 | |
13696 | void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file) | |
13697 | { | |
13698 | struct intel_crtc *crtc; | |
13699 | ||
13700 | for_each_intel_crtc(dev, crtc) { | |
13701 | struct intel_unpin_work *work; | |
e2fcdaa9 | 13702 | |
5e2d7afc | 13703 | spin_lock_irq(&dev->event_lock); |
e2fcdaa9 VS |
13704 | |
13705 | work = crtc->unpin_work; | |
13706 | ||
13707 | if (work && work->event && | |
13708 | work->event->base.file_priv == file) { | |
13709 | kfree(work->event); | |
13710 | work->event = NULL; | |
13711 | } | |
13712 | ||
5e2d7afc | 13713 | spin_unlock_irq(&dev->event_lock); |
e2fcdaa9 VS |
13714 | } |
13715 | } |