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drm/i915: fix wait_for_pending_flips vs gpu hang deadlock
[deliverable/linux.git] / drivers / gpu / drm / i915 / intel_display.c
CommitLineData
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>
c0f372b3 42#include <linux/dma_remapping.h>
79e53945 43
0206e353 44bool intel_pipe_has_type(struct drm_crtc *crtc, int type);
3dec0095 45static void intel_increase_pllclock(struct drm_crtc *crtc);
6b383a7f 46static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on);
79e53945 47
f1f644dc
JB		 48static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
49 struct intel_crtc_config *pipe_config);
50static void ironlake_crtc_clock_get(struct intel_crtc *crtc,
51 struct intel_crtc_config *pipe_config);
52
e7457a9a
DL		 53static int intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
54 int x, int y, struct drm_framebuffer *old_fb);
55
56
79e53945 57typedef struct {
0206e353 58 int min, max;
79e53945
JB		 59} intel_range_t;
60
61typedef struct {
0206e353
AJ		 62 int dot_limit;
63 int p2_slow, p2_fast;
79e53945
JB		 64} intel_p2_t;
65
d4906093
ML		 66typedef struct intel_limit intel_limit_t;
67struct intel_limit {
0206e353
AJ		 68 intel_range_t dot, vco, n, m, m1, m2, p, p1;
69 intel_p2_t p2;
d4906093 70};
79e53945 71
2377b741
JB		 72/* FDI */
73#define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */
74
d2acd215
DV		 75int
76intel_pch_rawclk(struct drm_device *dev)
77{
78 struct drm_i915_private *dev_priv = dev->dev_private;
79
80 WARN_ON(!HAS_PCH_SPLIT(dev));
81
82 return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK;
83}
84
021357ac
CW		 85static inline u32 /* units of 100MHz */
86intel_fdi_link_freq(struct drm_device *dev)
87{
8b99e68c
CW		 88 if (IS_GEN5(dev)) {
89 struct drm_i915_private *dev_priv = dev->dev_private;
90 return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2;
91 } else
92 return 27;
021357ac
CW		 93}
94
5d536e28 95static const intel_limit_t intel_limits_i8xx_dac = {
0206e353
AJ		 96 .dot = { .min = 25000, .max = 350000 },
97 .vco = { .min = 930000, .max = 1400000 },
98 .n = { .min = 3, .max = 16 },
99 .m = { .min = 96, .max = 140 },
100 .m1 = { .min = 18, .max = 26 },
101 .m2 = { .min = 6, .max = 16 },
102 .p = { .min = 4, .max = 128 },
103 .p1 = { .min = 2, .max = 33 },
273e27ca
EA		 104 .p2 = { .dot_limit = 165000,
105 .p2_slow = 4, .p2_fast = 2 },
e4b36699
KP		 106};
107
5d536e28
DV		 108static const intel_limit_t intel_limits_i8xx_dvo = {
109 .dot = { .min = 25000, .max = 350000 },
110 .vco = { .min = 930000, .max = 1400000 },
111 .n = { .min = 3, .max = 16 },
112 .m = { .min = 96, .max = 140 },
113 .m1 = { .min = 18, .max = 26 },
114 .m2 = { .min = 6, .max = 16 },
115 .p = { .min = 4, .max = 128 },
116 .p1 = { .min = 2, .max = 33 },
117 .p2 = { .dot_limit = 165000,
118 .p2_slow = 4, .p2_fast = 4 },
119};
120
e4b36699 121static const intel_limit_t intel_limits_i8xx_lvds = {
0206e353
AJ		 122 .dot = { .min = 25000, .max = 350000 },
123 .vco = { .min = 930000, .max = 1400000 },
124 .n = { .min = 3, .max = 16 },
125 .m = { .min = 96, .max = 140 },
126 .m1 = { .min = 18, .max = 26 },
127 .m2 = { .min = 6, .max = 16 },
128 .p = { .min = 4, .max = 128 },
129 .p1 = { .min = 1, .max = 6 },
273e27ca
EA		 130 .p2 = { .dot_limit = 165000,
131 .p2_slow = 14, .p2_fast = 7 },
e4b36699 132};
273e27ca 133
e4b36699 134static const intel_limit_t intel_limits_i9xx_sdvo = {
0206e353
AJ		 135 .dot = { .min = 20000, .max = 400000 },
136 .vco = { .min = 1400000, .max = 2800000 },
137 .n = { .min = 1, .max = 6 },
138 .m = { .min = 70, .max = 120 },
4f7dfb67
PJ		 139 .m1 = { .min = 8, .max = 18 },
140 .m2 = { .min = 3, .max = 7 },
0206e353
AJ		 141 .p = { .min = 5, .max = 80 },
142 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 143 .p2 = { .dot_limit = 200000,
144 .p2_slow = 10, .p2_fast = 5 },
e4b36699
KP		 145};
146
147static const intel_limit_t intel_limits_i9xx_lvds = {
0206e353
AJ		 148 .dot = { .min = 20000, .max = 400000 },
149 .vco = { .min = 1400000, .max = 2800000 },
150 .n = { .min = 1, .max = 6 },
151 .m = { .min = 70, .max = 120 },
53a7d2d1
PJ		 152 .m1 = { .min = 8, .max = 18 },
153 .m2 = { .min = 3, .max = 7 },
0206e353
AJ		 154 .p = { .min = 7, .max = 98 },
155 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 156 .p2 = { .dot_limit = 112000,
157 .p2_slow = 14, .p2_fast = 7 },
e4b36699
KP		 158};
159
273e27ca 160
e4b36699 161static const intel_limit_t intel_limits_g4x_sdvo = {
273e27ca
EA		 162 .dot = { .min = 25000, .max = 270000 },
163 .vco = { .min = 1750000, .max = 3500000},
164 .n = { .min = 1, .max = 4 },
165 .m = { .min = 104, .max = 138 },
166 .m1 = { .min = 17, .max = 23 },
167 .m2 = { .min = 5, .max = 11 },
168 .p = { .min = 10, .max = 30 },
169 .p1 = { .min = 1, .max = 3},
170 .p2 = { .dot_limit = 270000,
171 .p2_slow = 10,
172 .p2_fast = 10
044c7c41 173 },
e4b36699
KP		 174};
175
176static const intel_limit_t intel_limits_g4x_hdmi = {
273e27ca
EA		 177 .dot = { .min = 22000, .max = 400000 },
178 .vco = { .min = 1750000, .max = 3500000},
179 .n = { .min = 1, .max = 4 },
180 .m = { .min = 104, .max = 138 },
181 .m1 = { .min = 16, .max = 23 },
182 .m2 = { .min = 5, .max = 11 },
183 .p = { .min = 5, .max = 80 },
184 .p1 = { .min = 1, .max = 8},
185 .p2 = { .dot_limit = 165000,
186 .p2_slow = 10, .p2_fast = 5 },
e4b36699
KP		 187};
188
189static const intel_limit_t intel_limits_g4x_single_channel_lvds = {
273e27ca
EA		 190 .dot = { .min = 20000, .max = 115000 },
191 .vco = { .min = 1750000, .max = 3500000 },
192 .n = { .min = 1, .max = 3 },
193 .m = { .min = 104, .max = 138 },
194 .m1 = { .min = 17, .max = 23 },
195 .m2 = { .min = 5, .max = 11 },
196 .p = { .min = 28, .max = 112 },
197 .p1 = { .min = 2, .max = 8 },
198 .p2 = { .dot_limit = 0,
199 .p2_slow = 14, .p2_fast = 14
044c7c41 200 },
e4b36699
KP		 201};
202
203static const intel_limit_t intel_limits_g4x_dual_channel_lvds = {
273e27ca
EA		 204 .dot = { .min = 80000, .max = 224000 },
205 .vco = { .min = 1750000, .max = 3500000 },
206 .n = { .min = 1, .max = 3 },
207 .m = { .min = 104, .max = 138 },
208 .m1 = { .min = 17, .max = 23 },
209 .m2 = { .min = 5, .max = 11 },
210 .p = { .min = 14, .max = 42 },
211 .p1 = { .min = 2, .max = 6 },
212 .p2 = { .dot_limit = 0,
213 .p2_slow = 7, .p2_fast = 7
044c7c41 214 },
e4b36699
KP		 215};
216
f2b115e6 217static const intel_limit_t intel_limits_pineview_sdvo = {
0206e353
AJ		 218 .dot = { .min = 20000, .max = 400000},
219 .vco = { .min = 1700000, .max = 3500000 },
273e27ca 220 /* Pineview's Ncounter is a ring counter */
0206e353
AJ		 221 .n = { .min = 3, .max = 6 },
222 .m = { .min = 2, .max = 256 },
273e27ca 223 /* Pineview only has one combined m divider, which we treat as m2. */
0206e353
AJ		 224 .m1 = { .min = 0, .max = 0 },
225 .m2 = { .min = 0, .max = 254 },
226 .p = { .min = 5, .max = 80 },
227 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 228 .p2 = { .dot_limit = 200000,
229 .p2_slow = 10, .p2_fast = 5 },
e4b36699
KP		 230};
231
f2b115e6 232static const intel_limit_t intel_limits_pineview_lvds = {
0206e353
AJ		 233 .dot = { .min = 20000, .max = 400000 },
234 .vco = { .min = 1700000, .max = 3500000 },
235 .n = { .min = 3, .max = 6 },
236 .m = { .min = 2, .max = 256 },
237 .m1 = { .min = 0, .max = 0 },
238 .m2 = { .min = 0, .max = 254 },
239 .p = { .min = 7, .max = 112 },
240 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 241 .p2 = { .dot_limit = 112000,
242 .p2_slow = 14, .p2_fast = 14 },
e4b36699
KP		 243};
244
273e27ca
EA		 245/* Ironlake / Sandybridge
246 *
247 * We calculate clock using (register_value + 2) for N/M1/M2, so here
248 * the range value for them is (actual_value - 2).
249 */
b91ad0ec 250static const intel_limit_t intel_limits_ironlake_dac = {
273e27ca
EA		 251 .dot = { .min = 25000, .max = 350000 },
252 .vco = { .min = 1760000, .max = 3510000 },
253 .n = { .min = 1, .max = 5 },
254 .m = { .min = 79, .max = 127 },
255 .m1 = { .min = 12, .max = 22 },
256 .m2 = { .min = 5, .max = 9 },
257 .p = { .min = 5, .max = 80 },
258 .p1 = { .min = 1, .max = 8 },
259 .p2 = { .dot_limit = 225000,
260 .p2_slow = 10, .p2_fast = 5 },
e4b36699
KP		 261};
262
b91ad0ec 263static const intel_limit_t intel_limits_ironlake_single_lvds = {
273e27ca
EA		 264 .dot = { .min = 25000, .max = 350000 },
265 .vco = { .min = 1760000, .max = 3510000 },
266 .n = { .min = 1, .max = 3 },
267 .m = { .min = 79, .max = 118 },
268 .m1 = { .min = 12, .max = 22 },
269 .m2 = { .min = 5, .max = 9 },
270 .p = { .min = 28, .max = 112 },
271 .p1 = { .min = 2, .max = 8 },
272 .p2 = { .dot_limit = 225000,
273 .p2_slow = 14, .p2_fast = 14 },
b91ad0ec
ZW		 274};
275
276static const intel_limit_t intel_limits_ironlake_dual_lvds = {
273e27ca
EA		 277 .dot = { .min = 25000, .max = 350000 },
278 .vco = { .min = 1760000, .max = 3510000 },
279 .n = { .min = 1, .max = 3 },
280 .m = { .min = 79, .max = 127 },
281 .m1 = { .min = 12, .max = 22 },
282 .m2 = { .min = 5, .max = 9 },
283 .p = { .min = 14, .max = 56 },
284 .p1 = { .min = 2, .max = 8 },
285 .p2 = { .dot_limit = 225000,
286 .p2_slow = 7, .p2_fast = 7 },
b91ad0ec
ZW		 287};
288
273e27ca 289/* LVDS 100mhz refclk limits. */
b91ad0ec 290static const intel_limit_t intel_limits_ironlake_single_lvds_100m = {
273e27ca
EA		 291 .dot = { .min = 25000, .max = 350000 },
292 .vco = { .min = 1760000, .max = 3510000 },
293 .n = { .min = 1, .max = 2 },
294 .m = { .min = 79, .max = 126 },
295 .m1 = { .min = 12, .max = 22 },
296 .m2 = { .min = 5, .max = 9 },
297 .p = { .min = 28, .max = 112 },
0206e353 298 .p1 = { .min = 2, .max = 8 },
273e27ca
EA		 299 .p2 = { .dot_limit = 225000,
300 .p2_slow = 14, .p2_fast = 14 },
b91ad0ec
ZW		 301};
302
303static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = {
273e27ca
EA		 304 .dot = { .min = 25000, .max = 350000 },
305 .vco = { .min = 1760000, .max = 3510000 },
306 .n = { .min = 1, .max = 3 },
307 .m = { .min = 79, .max = 126 },
308 .m1 = { .min = 12, .max = 22 },
309 .m2 = { .min = 5, .max = 9 },
310 .p = { .min = 14, .max = 42 },
0206e353 311 .p1 = { .min = 2, .max = 6 },
273e27ca
EA		 312 .p2 = { .dot_limit = 225000,
313 .p2_slow = 7, .p2_fast = 7 },
4547668a
ZY		 314};
315
a0c4da24
JB		 316static const intel_limit_t intel_limits_vlv_dac = {
317 .dot = { .min = 25000, .max = 270000 },
318 .vco = { .min = 4000000, .max = 6000000 },
319 .n = { .min = 1, .max = 7 },
320 .m = { .min = 22, .max = 450 }, /* guess */
321 .m1 = { .min = 2, .max = 3 },
322 .m2 = { .min = 11, .max = 156 },
323 .p = { .min = 10, .max = 30 },
75e53986 324 .p1 = { .min = 1, .max = 3 },
a0c4da24
JB		 325 .p2 = { .dot_limit = 270000,
326 .p2_slow = 2, .p2_fast = 20 },
a0c4da24
JB		 327};
328
329static const intel_limit_t intel_limits_vlv_hdmi = {
75e53986
DV		 330 .dot = { .min = 25000, .max = 270000 },
331 .vco = { .min = 4000000, .max = 6000000 },
a0c4da24
JB		 332 .n = { .min = 1, .max = 7 },
333 .m = { .min = 60, .max = 300 }, /* guess */
334 .m1 = { .min = 2, .max = 3 },
335 .m2 = { .min = 11, .max = 156 },
336 .p = { .min = 10, .max = 30 },
337 .p1 = { .min = 2, .max = 3 },
338 .p2 = { .dot_limit = 270000,
339 .p2_slow = 2, .p2_fast = 20 },
a0c4da24
JB		 340};
341
342static const intel_limit_t intel_limits_vlv_dp = {
74a4dd2e
VP		 343 .dot = { .min = 25000, .max = 270000 },
344 .vco = { .min = 4000000, .max = 6000000 },
a0c4da24 345 .n = { .min = 1, .max = 7 },
74a4dd2e 346 .m = { .min = 22, .max = 450 },
a0c4da24
JB		 347 .m1 = { .min = 2, .max = 3 },
348 .m2 = { .min = 11, .max = 156 },
349 .p = { .min = 10, .max = 30 },
75e53986 350 .p1 = { .min = 1, .max = 3 },
a0c4da24
JB		 351 .p2 = { .dot_limit = 270000,
352 .p2_slow = 2, .p2_fast = 20 },
a0c4da24
JB		 353};
354
1b894b59
CW		 355static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
356 int refclk)
2c07245f 357{
b91ad0ec 358 struct drm_device *dev = crtc->dev;
2c07245f 359 const intel_limit_t *limit;
b91ad0ec
ZW		 360
361 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
1974cad0 362 if (intel_is_dual_link_lvds(dev)) {
1b894b59 363 if (refclk == 100000)
b91ad0ec
ZW		 364 limit = &intel_limits_ironlake_dual_lvds_100m;
365 else
366 limit = &intel_limits_ironlake_dual_lvds;
367 } else {
1b894b59 368 if (refclk == 100000)
b91ad0ec
ZW		 369 limit = &intel_limits_ironlake_single_lvds_100m;
370 else
371 limit = &intel_limits_ironlake_single_lvds;
372 }
c6bb3538 373 } else
b91ad0ec 374 limit = &intel_limits_ironlake_dac;
2c07245f
ZW		 375
376 return limit;
377}
378
044c7c41
ML		 379static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
380{
381 struct drm_device *dev = crtc->dev;
044c7c41
ML		 382 const intel_limit_t *limit;
383
384 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
1974cad0 385 if (intel_is_dual_link_lvds(dev))
e4b36699 386 limit = &intel_limits_g4x_dual_channel_lvds;
044c7c41 387 else
e4b36699 388 limit = &intel_limits_g4x_single_channel_lvds;
044c7c41
ML		 389 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
390 intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
e4b36699 391 limit = &intel_limits_g4x_hdmi;
044c7c41 392 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
e4b36699 393 limit = &intel_limits_g4x_sdvo;
044c7c41 394 } else /* The option is for other outputs */
e4b36699 395 limit = &intel_limits_i9xx_sdvo;
044c7c41
ML		 396
397 return limit;
398}
399
1b894b59 400static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
79e53945
JB		 401{
402 struct drm_device *dev = crtc->dev;
403 const intel_limit_t *limit;
404
bad720ff 405 if (HAS_PCH_SPLIT(dev))
1b894b59 406 limit = intel_ironlake_limit(crtc, refclk);
2c07245f 407 else if (IS_G4X(dev)) {
044c7c41 408 limit = intel_g4x_limit(crtc);
f2b115e6 409 } else if (IS_PINEVIEW(dev)) {
2177832f 410 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
f2b115e6 411 limit = &intel_limits_pineview_lvds;
2177832f 412 else
f2b115e6 413 limit = &intel_limits_pineview_sdvo;
a0c4da24
JB		 414 } else if (IS_VALLEYVIEW(dev)) {
415 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG))
416 limit = &intel_limits_vlv_dac;
417 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI))
418 limit = &intel_limits_vlv_hdmi;
419 else
420 limit = &intel_limits_vlv_dp;
a6c45cf0
CW		 421 } else if (!IS_GEN2(dev)) {
422 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
423 limit = &intel_limits_i9xx_lvds;
424 else
425 limit = &intel_limits_i9xx_sdvo;
79e53945
JB		 426 } else {
427 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
e4b36699 428 limit = &intel_limits_i8xx_lvds;
5d536e28 429 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO))
e4b36699 430 limit = &intel_limits_i8xx_dvo;
5d536e28
DV		 431 else
432 limit = &intel_limits_i8xx_dac;
79e53945
JB		 433 }
434 return limit;
435}
436
f2b115e6
AJ		 437/* m1 is reserved as 0 in Pineview, n is a ring counter */
438static void pineview_clock(int refclk, intel_clock_t *clock)
79e53945 439{
2177832f
SL		 440 clock->m = clock->m2 + 2;
441 clock->p = clock->p1 * clock->p2;
442 clock->vco = refclk * clock->m / clock->n;
443 clock->dot = clock->vco / clock->p;
444}
445
7429e9d4
DV		 446static uint32_t i9xx_dpll_compute_m(struct dpll *dpll)
447{
448 return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
449}
450
ac58c3f0 451static void i9xx_clock(int refclk, intel_clock_t *clock)
2177832f 452{
7429e9d4 453 clock->m = i9xx_dpll_compute_m(clock);
79e53945
JB		 454 clock->p = clock->p1 * clock->p2;
455 clock->vco = refclk * clock->m / (clock->n + 2);
456 clock->dot = clock->vco / clock->p;
457}
458
79e53945
JB		 459/**
460 * Returns whether any output on the specified pipe is of the specified type
461 */
4ef69c7a 462bool intel_pipe_has_type(struct drm_crtc *crtc, int type)
79e53945 463{
4ef69c7a 464 struct drm_device *dev = crtc->dev;
4ef69c7a
CW		 465 struct intel_encoder *encoder;
466
6c2b7c12
DV		 467 for_each_encoder_on_crtc(dev, crtc, encoder)
468 if (encoder->type == type)
4ef69c7a
CW		 469 return true;
470
471 return false;
79e53945
JB		 472}
473
7c04d1d9 474#define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
79e53945
JB		 475/**
476 * Returns whether the given set of divisors are valid for a given refclk with
477 * the given connectors.
478 */
479
1b894b59
CW		 480static bool intel_PLL_is_valid(struct drm_device *dev,
481 const intel_limit_t *limit,
482 const intel_clock_t *clock)
79e53945 483{
79e53945 484 if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
0206e353 485 INTELPllInvalid("p1 out of range\n");
79e53945 486 if (clock->p < limit->p.min || limit->p.max < clock->p)
0206e353 487 INTELPllInvalid("p out of range\n");
79e53945 488 if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
0206e353 489 INTELPllInvalid("m2 out of range\n");
79e53945 490 if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
0206e353 491 INTELPllInvalid("m1 out of range\n");
f2b115e6 492 if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev))
0206e353 493 INTELPllInvalid("m1 <= m2\n");
79e53945 494 if (clock->m < limit->m.min || limit->m.max < clock->m)
0206e353 495 INTELPllInvalid("m out of range\n");
79e53945 496 if (clock->n < limit->n.min || limit->n.max < clock->n)
0206e353 497 INTELPllInvalid("n out of range\n");
79e53945 498 if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
0206e353 499 INTELPllInvalid("vco out of range\n");
79e53945
JB		 500 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
501 * connector, etc., rather than just a single range.
502 */
503 if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
0206e353 504 INTELPllInvalid("dot out of range\n");
79e53945
JB		 505
506 return true;
507}
508
d4906093 509static bool
ee9300bb 510i9xx_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
cec2f356
SP		 511 int target, int refclk, intel_clock_t *match_clock,
512 intel_clock_t *best_clock)
79e53945
JB		 513{
514 struct drm_device *dev = crtc->dev;
79e53945 515 intel_clock_t clock;
79e53945
JB		 516 int err = target;
517
a210b028 518 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
79e53945 519 /*
a210b028
DV		 520 * For LVDS just rely on its current settings for dual-channel.
521 * We haven't figured out how to reliably set up different
522 * single/dual channel state, if we even can.
79e53945 523 */
1974cad0 524 if (intel_is_dual_link_lvds(dev))
79e53945
JB		 525 clock.p2 = limit->p2.p2_fast;
526 else
527 clock.p2 = limit->p2.p2_slow;
528 } else {
529 if (target < limit->p2.dot_limit)
530 clock.p2 = limit->p2.p2_slow;
531 else
532 clock.p2 = limit->p2.p2_fast;
533 }
534
0206e353 535 memset(best_clock, 0, sizeof(*best_clock));
79e53945 536
42158660
ZY		 537 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
538 clock.m1++) {
539 for (clock.m2 = limit->m2.min;
540 clock.m2 <= limit->m2.max; clock.m2++) {
c0efc387 541 if (clock.m2 >= clock.m1)
42158660
ZY		 542 break;
543 for (clock.n = limit->n.min;
544 clock.n <= limit->n.max; clock.n++) {
545 for (clock.p1 = limit->p1.min;
546 clock.p1 <= limit->p1.max; clock.p1++) {
79e53945
JB		 547 int this_err;
548
ac58c3f0
DV		 549 i9xx_clock(refclk, &clock);
550 if (!intel_PLL_is_valid(dev, limit,
551 &clock))
552 continue;
553 if (match_clock &&
554 clock.p != match_clock->p)
555 continue;
556
557 this_err = abs(clock.dot - target);
558 if (this_err < err) {
559 *best_clock = clock;
560 err = this_err;
561 }
562 }
563 }
564 }
565 }
566
567 return (err != target);
568}
569
570static bool
ee9300bb
DV		 571pnv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
572 int target, int refclk, intel_clock_t *match_clock,
573 intel_clock_t *best_clock)
79e53945
JB		 574{
575 struct drm_device *dev = crtc->dev;
79e53945 576 intel_clock_t clock;
79e53945
JB		 577 int err = target;
578
a210b028 579 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
79e53945 580 /*
a210b028
DV		 581 * For LVDS just rely on its current settings for dual-channel.
582 * We haven't figured out how to reliably set up different
583 * single/dual channel state, if we even can.
79e53945 584 */
1974cad0 585 if (intel_is_dual_link_lvds(dev))
79e53945
JB		 586 clock.p2 = limit->p2.p2_fast;
587 else
588 clock.p2 = limit->p2.p2_slow;
589 } else {
590 if (target < limit->p2.dot_limit)
591 clock.p2 = limit->p2.p2_slow;
592 else
593 clock.p2 = limit->p2.p2_fast;
594 }
595
0206e353 596 memset(best_clock, 0, sizeof(*best_clock));
79e53945 597
42158660
ZY		 598 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
599 clock.m1++) {
600 for (clock.m2 = limit->m2.min;
601 clock.m2 <= limit->m2.max; clock.m2++) {
42158660
ZY		 602 for (clock.n = limit->n.min;
603 clock.n <= limit->n.max; clock.n++) {
604 for (clock.p1 = limit->p1.min;
605 clock.p1 <= limit->p1.max; clock.p1++) {
79e53945
JB		 606 int this_err;
607
ac58c3f0 608 pineview_clock(refclk, &clock);
1b894b59
CW		 609 if (!intel_PLL_is_valid(dev, limit,
610 &clock))
79e53945 611 continue;
cec2f356
SP		 612 if (match_clock &&
613 clock.p != match_clock->p)
614 continue;
79e53945
JB		 615
616 this_err = abs(clock.dot - target);
617 if (this_err < err) {
618 *best_clock = clock;
619 err = this_err;
620 }
621 }
622 }
623 }
624 }
625
626 return (err != target);
627}
628
d4906093 629static bool
ee9300bb
DV		 630g4x_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
631 int target, int refclk, intel_clock_t *match_clock,
632 intel_clock_t *best_clock)
d4906093
ML		 633{
634 struct drm_device *dev = crtc->dev;
d4906093
ML		 635 intel_clock_t clock;
636 int max_n;
637 bool found;
6ba770dc
AJ		 638 /* approximately equals target * 0.00585 */
639 int err_most = (target >> 8) + (target >> 9);
d4906093
ML		 640 found = false;
641
642 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
1974cad0 643 if (intel_is_dual_link_lvds(dev))
d4906093
ML		 644 clock.p2 = limit->p2.p2_fast;
645 else
646 clock.p2 = limit->p2.p2_slow;
647 } else {
648 if (target < limit->p2.dot_limit)
649 clock.p2 = limit->p2.p2_slow;
650 else
651 clock.p2 = limit->p2.p2_fast;
652 }
653
654 memset(best_clock, 0, sizeof(*best_clock));
655 max_n = limit->n.max;
f77f13e2 656 /* based on hardware requirement, prefer smaller n to precision */
d4906093 657 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
f77f13e2 658 /* based on hardware requirement, prefere larger m1,m2 */
d4906093
ML		 659 for (clock.m1 = limit->m1.max;
660 clock.m1 >= limit->m1.min; clock.m1--) {
661 for (clock.m2 = limit->m2.max;
662 clock.m2 >= limit->m2.min; clock.m2--) {
663 for (clock.p1 = limit->p1.max;
664 clock.p1 >= limit->p1.min; clock.p1--) {
665 int this_err;
666
ac58c3f0 667 i9xx_clock(refclk, &clock);
1b894b59
CW		 668 if (!intel_PLL_is_valid(dev, limit,
669 &clock))
d4906093 670 continue;
1b894b59
CW		 671
672 this_err = abs(clock.dot - target);
d4906093
ML		 673 if (this_err < err_most) {
674 *best_clock = clock;
675 err_most = this_err;
676 max_n = clock.n;
677 found = true;
678 }
679 }
680 }
681 }
682 }
2c07245f
ZW		 683 return found;
684}
685
a0c4da24 686static bool
ee9300bb
DV		 687vlv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
688 int target, int refclk, intel_clock_t *match_clock,
689 intel_clock_t *best_clock)
a0c4da24
JB		 690{
691 u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2;
692 u32 m, n, fastclk;
f3f08572 693 u32 updrate, minupdate, p;
a0c4da24
JB		 694 unsigned long bestppm, ppm, absppm;
695 int dotclk, flag;
696
af447bd3 697 flag = 0;
a0c4da24
JB		 698 dotclk = target * 1000;
699 bestppm = 1000000;
700 ppm = absppm = 0;
701 fastclk = dotclk / (2*100);
702 updrate = 0;
703 minupdate = 19200;
a0c4da24
JB		 704 n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0;
705 bestm1 = bestm2 = bestp1 = bestp2 = 0;
706
707 /* based on hardware requirement, prefer smaller n to precision */
708 for (n = limit->n.min; n <= ((refclk) / minupdate); n++) {
709 updrate = refclk / n;
710 for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) {
711 for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) {
712 if (p2 > 10)
713 p2 = p2 - 1;
714 p = p1 * p2;
715 /* based on hardware requirement, prefer bigger m1,m2 values */
716 for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) {
717 m2 = (((2*(fastclk * p * n / m1 )) +
718 refclk) / (2*refclk));
719 m = m1 * m2;
720 vco = updrate * m;
721 if (vco >= limit->vco.min && vco < limit->vco.max) {
722 ppm = 1000000 * ((vco / p) - fastclk) / fastclk;
723 absppm = (ppm > 0) ? ppm : (-ppm);
724 if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) {
725 bestppm = 0;
726 flag = 1;
727 }
728 if (absppm < bestppm - 10) {
729 bestppm = absppm;
730 flag = 1;
731 }
732 if (flag) {
733 bestn = n;
734 bestm1 = m1;
735 bestm2 = m2;
736 bestp1 = p1;
737 bestp2 = p2;
738 flag = 0;
739 }
740 }
741 }
742 }
743 }
744 }
745 best_clock->n = bestn;
746 best_clock->m1 = bestm1;
747 best_clock->m2 = bestm2;
748 best_clock->p1 = bestp1;
749 best_clock->p2 = bestp2;
750
751 return true;
752}
a4fc5ed6 753
a5c961d1
PZ		 754enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
755 enum pipe pipe)
756{
757 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
758 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
759
3b117c8f 760 return intel_crtc->config.cpu_transcoder;
a5c961d1
PZ		 761}
762
a928d536
PZ		 763static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe)
764{
765 struct drm_i915_private *dev_priv = dev->dev_private;
766 u32 frame, frame_reg = PIPEFRAME(pipe);
767
768 frame = I915_READ(frame_reg);
769
770 if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50))
771 DRM_DEBUG_KMS("vblank wait timed out\n");
772}
773
9d0498a2
JB		 774/**
775 * intel_wait_for_vblank - wait for vblank on a given pipe
776 * @dev: drm device
777 * @pipe: pipe to wait for
778 *
779 * Wait for vblank to occur on a given pipe. Needed for various bits of
780 * mode setting code.
781 */
782void intel_wait_for_vblank(struct drm_device *dev, int pipe)
79e53945 783{
9d0498a2 784 struct drm_i915_private *dev_priv = dev->dev_private;
9db4a9c7 785 int pipestat_reg = PIPESTAT(pipe);
9d0498a2 786
a928d536
PZ		 787 if (INTEL_INFO(dev)->gen >= 5) {
788 ironlake_wait_for_vblank(dev, pipe);
789 return;
790 }
791
300387c0
CW		 792 /* Clear existing vblank status. Note this will clear any other
793 * sticky status fields as well.
794 *
795 * This races with i915_driver_irq_handler() with the result
796 * that either function could miss a vblank event. Here it is not
797 * fatal, as we will either wait upon the next vblank interrupt or
798 * timeout. Generally speaking intel_wait_for_vblank() is only
799 * called during modeset at which time the GPU should be idle and
800 * should *not* be performing page flips and thus not waiting on
801 * vblanks...
802 * Currently, the result of us stealing a vblank from the irq
803 * handler is that a single frame will be skipped during swapbuffers.
804 */
805 I915_WRITE(pipestat_reg,
806 I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS);
807
9d0498a2 808 /* Wait for vblank interrupt bit to set */
481b6af3
CW		 809 if (wait_for(I915_READ(pipestat_reg) &
810 PIPE_VBLANK_INTERRUPT_STATUS,
811 50))
9d0498a2
JB		 812 DRM_DEBUG_KMS("vblank wait timed out\n");
813}
814
ab7ad7f6
KP		 815/*
816 * intel_wait_for_pipe_off - wait for pipe to turn off
9d0498a2
JB		 817 * @dev: drm device
818 * @pipe: pipe to wait for
819 *
820 * After disabling a pipe, we can't wait for vblank in the usual way,
821 * spinning on the vblank interrupt status bit, since we won't actually
822 * see an interrupt when the pipe is disabled.
823 *
ab7ad7f6
KP		 824 * On Gen4 and above:
825 * wait for the pipe register state bit to turn off
826 *
827 * Otherwise:
828 * wait for the display line value to settle (it usually
829 * ends up stopping at the start of the next frame).
58e10eb9 830 *
9d0498a2 831 */
58e10eb9 832void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
9d0498a2
JB		 833{
834 struct drm_i915_private *dev_priv = dev->dev_private;
702e7a56
PZ		 835 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
836 pipe);
ab7ad7f6
KP		 837
838 if (INTEL_INFO(dev)->gen >= 4) {
702e7a56 839 int reg = PIPECONF(cpu_transcoder);
ab7ad7f6
KP		 840
841 /* Wait for the Pipe State to go off */
58e10eb9
CW		 842 if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0,
843 100))
284637d9 844 WARN(1, "pipe_off wait timed out\n");
ab7ad7f6 845 } else {
837ba00f 846 u32 last_line, line_mask;
58e10eb9 847 int reg = PIPEDSL(pipe);
ab7ad7f6
KP		 848 unsigned long timeout = jiffies + msecs_to_jiffies(100);
849
837ba00f
PZ		 850 if (IS_GEN2(dev))
851 line_mask = DSL_LINEMASK_GEN2;
852 else
853 line_mask = DSL_LINEMASK_GEN3;
854
ab7ad7f6
KP		 855 /* Wait for the display line to settle */
856 do {
837ba00f 857 last_line = I915_READ(reg) & line_mask;
ab7ad7f6 858 mdelay(5);
837ba00f 859 } while (((I915_READ(reg) & line_mask) != last_line) &&
ab7ad7f6
KP		 860 time_after(timeout, jiffies));
861 if (time_after(jiffies, timeout))
284637d9 862 WARN(1, "pipe_off wait timed out\n");
ab7ad7f6 863 }
79e53945
JB		 864}
865
b0ea7d37
DL		 866/*
867 * ibx_digital_port_connected - is the specified port connected?
868 * @dev_priv: i915 private structure
869 * @port: the port to test
870 *
871 * Returns true if @port is connected, false otherwise.
872 */
873bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
874 struct intel_digital_port *port)
875{
876 u32 bit;
877
c36346e3
DL		 878 if (HAS_PCH_IBX(dev_priv->dev)) {
879 switch(port->port) {
880 case PORT_B:
881 bit = SDE_PORTB_HOTPLUG;
882 break;
883 case PORT_C:
884 bit = SDE_PORTC_HOTPLUG;
885 break;
886 case PORT_D:
887 bit = SDE_PORTD_HOTPLUG;
888 break;
889 default:
890 return true;
891 }
892 } else {
893 switch(port->port) {
894 case PORT_B:
895 bit = SDE_PORTB_HOTPLUG_CPT;
896 break;
897 case PORT_C:
898 bit = SDE_PORTC_HOTPLUG_CPT;
899 break;
900 case PORT_D:
901 bit = SDE_PORTD_HOTPLUG_CPT;
902 break;
903 default:
904 return true;
905 }
b0ea7d37
DL		 906 }
907
908 return I915_READ(SDEISR) & bit;
909}
910
b24e7179
JB		 911static const char *state_string(bool enabled)
912{
913 return enabled ? "on" : "off";
914}
915
916/* Only for pre-ILK configs */
55607e8a
DV		 917void assert_pll(struct drm_i915_private *dev_priv,
918 enum pipe pipe, bool state)
b24e7179
JB		 919{
920 int reg;
921 u32 val;
922 bool cur_state;
923
924 reg = DPLL(pipe);
925 val = I915_READ(reg);
926 cur_state = !!(val & DPLL_VCO_ENABLE);
927 WARN(cur_state != state,
928 "PLL state assertion failure (expected %s, current %s)\n",
929 state_string(state), state_string(cur_state));
930}
b24e7179 931
55607e8a 932struct intel_shared_dpll *
e2b78267
DV		 933intel_crtc_to_shared_dpll(struct intel_crtc *crtc)
934{
935 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
936
a43f6e0f 937 if (crtc->config.shared_dpll < 0)
e2b78267
DV		 938 return NULL;
939
a43f6e0f 940 return &dev_priv->shared_dplls[crtc->config.shared_dpll];
e2b78267
DV		 941}
942
040484af 943/* For ILK+ */
55607e8a
DV		 944void assert_shared_dpll(struct drm_i915_private *dev_priv,
945 struct intel_shared_dpll *pll,
946 bool state)
040484af 947{
040484af 948 bool cur_state;
5358901f 949 struct intel_dpll_hw_state hw_state;
040484af 950
9d82aa17
ED		 951 if (HAS_PCH_LPT(dev_priv->dev)) {
952 DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
953 return;
954 }
955
92b27b08 956 if (WARN (!pll,
46edb027 957 "asserting DPLL %s with no DPLL\n", state_string(state)))
ee7b9f93 958 return;
ee7b9f93 959
5358901f 960 cur_state = pll->get_hw_state(dev_priv, pll, &hw_state);
92b27b08 961 WARN(cur_state != state,
5358901f
DV		 962 "%s assertion failure (expected %s, current %s)\n",
963 pll->name, state_string(state), state_string(cur_state));
040484af 964}
040484af
JB		 965
966static void assert_fdi_tx(struct drm_i915_private *dev_priv,
967 enum pipe pipe, bool state)
968{
969 int reg;
970 u32 val;
971 bool cur_state;
ad80a810
PZ		 972 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
973 pipe);
040484af 974
affa9354
PZ		 975 if (HAS_DDI(dev_priv->dev)) {
976 /* DDI does not have a specific FDI_TX register */
ad80a810 977 reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
bf507ef7 978 val = I915_READ(reg);
ad80a810 979 cur_state = !!(val & TRANS_DDI_FUNC_ENABLE);
bf507ef7
ED		 980 } else {
981 reg = FDI_TX_CTL(pipe);
982 val = I915_READ(reg);
983 cur_state = !!(val & FDI_TX_ENABLE);
984 }
040484af
JB		 985 WARN(cur_state != state,
986 "FDI TX state assertion failure (expected %s, current %s)\n",
987 state_string(state), state_string(cur_state));
988}
989#define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
990#define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
991
992static void assert_fdi_rx(struct drm_i915_private *dev_priv,
993 enum pipe pipe, bool state)
994{
995 int reg;
996 u32 val;
997 bool cur_state;
998
d63fa0dc
PZ		 999 reg = FDI_RX_CTL(pipe);
1000 val = I915_READ(reg);
1001 cur_state = !!(val & FDI_RX_ENABLE);
040484af
JB		 1002 WARN(cur_state != state,
1003 "FDI RX state assertion failure (expected %s, current %s)\n",
1004 state_string(state), state_string(cur_state));
1005}
1006#define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1007#define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1008
1009static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
1010 enum pipe pipe)
1011{
1012 int reg;
1013 u32 val;
1014
1015 /* ILK FDI PLL is always enabled */
1016 if (dev_priv->info->gen == 5)
1017 return;
1018
bf507ef7 1019 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
affa9354 1020 if (HAS_DDI(dev_priv->dev))
bf507ef7
ED		 1021 return;
1022
040484af
JB		 1023 reg = FDI_TX_CTL(pipe);
1024 val = I915_READ(reg);
1025 WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n");
1026}
1027
55607e8a
DV		 1028void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1029 enum pipe pipe, bool state)
040484af
JB		 1030{
1031 int reg;
1032 u32 val;
55607e8a 1033 bool cur_state;
040484af
JB		 1034
1035 reg = FDI_RX_CTL(pipe);
1036 val = I915_READ(reg);
55607e8a
DV		 1037 cur_state = !!(val & FDI_RX_PLL_ENABLE);
1038 WARN(cur_state != state,
1039 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1040 state_string(state), state_string(cur_state));
040484af
JB		 1041}
1042
ea0760cf
JB		 1043static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1044 enum pipe pipe)
1045{
1046 int pp_reg, lvds_reg;
1047 u32 val;
1048 enum pipe panel_pipe = PIPE_A;
0de3b485 1049 bool locked = true;
ea0760cf
JB		 1050
1051 if (HAS_PCH_SPLIT(dev_priv->dev)) {
1052 pp_reg = PCH_PP_CONTROL;
1053 lvds_reg = PCH_LVDS;
1054 } else {
1055 pp_reg = PP_CONTROL;
1056 lvds_reg = LVDS;
1057 }
1058
1059 val = I915_READ(pp_reg);
1060 if (!(val & PANEL_POWER_ON) ||
1061 ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS))
1062 locked = false;
1063
1064 if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT)
1065 panel_pipe = PIPE_B;
1066
1067 WARN(panel_pipe == pipe && locked,
1068 "panel assertion failure, pipe %c regs locked\n",
9db4a9c7 1069 pipe_name(pipe));
ea0760cf
JB		 1070}
1071
b840d907
JB		 1072void assert_pipe(struct drm_i915_private *dev_priv,
1073 enum pipe pipe, bool state)
b24e7179
JB		 1074{
1075 int reg;
1076 u32 val;
63d7bbe9 1077 bool cur_state;
702e7a56
PZ		 1078 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1079 pipe);
b24e7179 1080
8e636784
DV		 1081 /* if we need the pipe A quirk it must be always on */
1082 if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
1083 state = true;
1084
b97186f0
PZ		 1085 if (!intel_display_power_enabled(dev_priv->dev,
1086 POWER_DOMAIN_TRANSCODER(cpu_transcoder))) {
69310161
PZ		 1087 cur_state = false;
1088 } else {
1089 reg = PIPECONF(cpu_transcoder);
1090 val = I915_READ(reg);
1091 cur_state = !!(val & PIPECONF_ENABLE);
1092 }
1093
63d7bbe9
JB		 1094 WARN(cur_state != state,
1095 "pipe %c assertion failure (expected %s, current %s)\n",
9db4a9c7 1096 pipe_name(pipe), state_string(state), state_string(cur_state));
b24e7179
JB		 1097}
1098
931872fc
CW		 1099static void assert_plane(struct drm_i915_private *dev_priv,
1100 enum plane plane, bool state)
b24e7179
JB		 1101{
1102 int reg;
1103 u32 val;
931872fc 1104 bool cur_state;
b24e7179
JB		 1105
1106 reg = DSPCNTR(plane);
1107 val = I915_READ(reg);
931872fc
CW		 1108 cur_state = !!(val & DISPLAY_PLANE_ENABLE);
1109 WARN(cur_state != state,
1110 "plane %c assertion failure (expected %s, current %s)\n",
1111 plane_name(plane), state_string(state), state_string(cur_state));
b24e7179
JB		 1112}
1113
931872fc
CW		 1114#define assert_plane_enabled(d, p) assert_plane(d, p, true)
1115#define assert_plane_disabled(d, p) assert_plane(d, p, false)
1116
b24e7179
JB		 1117static void assert_planes_disabled(struct drm_i915_private *dev_priv,
1118 enum pipe pipe)
1119{
653e1026 1120 struct drm_device *dev = dev_priv->dev;
b24e7179
JB		 1121 int reg, i;
1122 u32 val;
1123 int cur_pipe;
1124
653e1026
VS		 1125 /* Primary planes are fixed to pipes on gen4+ */
1126 if (INTEL_INFO(dev)->gen >= 4) {
28c05794
AJ		 1127 reg = DSPCNTR(pipe);
1128 val = I915_READ(reg);
1129 WARN((val & DISPLAY_PLANE_ENABLE),
1130 "plane %c assertion failure, should be disabled but not\n",
1131 plane_name(pipe));
19ec1358 1132 return;
28c05794 1133 }
19ec1358 1134
b24e7179 1135 /* Need to check both planes against the pipe */
08e2a7de 1136 for_each_pipe(i) {
b24e7179
JB		 1137 reg = DSPCNTR(i);
1138 val = I915_READ(reg);
1139 cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >>
1140 DISPPLANE_SEL_PIPE_SHIFT;
1141 WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe,
9db4a9c7
JB		 1142 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1143 plane_name(i), pipe_name(pipe));
b24e7179
JB		 1144 }
1145}
1146
19332d7a
JB		 1147static void assert_sprites_disabled(struct drm_i915_private *dev_priv,
1148 enum pipe pipe)
1149{
20674eef 1150 struct drm_device *dev = dev_priv->dev;
19332d7a
JB		 1151 int reg, i;
1152 u32 val;
1153
20674eef
VS		 1154 if (IS_VALLEYVIEW(dev)) {
1155 for (i = 0; i < dev_priv->num_plane; i++) {
1156 reg = SPCNTR(pipe, i);
1157 val = I915_READ(reg);
1158 WARN((val & SP_ENABLE),
1159 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1160 sprite_name(pipe, i), pipe_name(pipe));
1161 }
1162 } else if (INTEL_INFO(dev)->gen >= 7) {
1163 reg = SPRCTL(pipe);
19332d7a 1164 val = I915_READ(reg);
20674eef 1165 WARN((val & SPRITE_ENABLE),
06da8da2 1166 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
20674eef
VS		 1167 plane_name(pipe), pipe_name(pipe));
1168 } else if (INTEL_INFO(dev)->gen >= 5) {
1169 reg = DVSCNTR(pipe);
19332d7a 1170 val = I915_READ(reg);
20674eef 1171 WARN((val & DVS_ENABLE),
06da8da2 1172 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
20674eef 1173 plane_name(pipe), pipe_name(pipe));
19332d7a
JB		 1174 }
1175}
1176
92f2584a
JB		 1177static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
1178{
1179 u32 val;
1180 bool enabled;
1181
9d82aa17
ED		 1182 if (HAS_PCH_LPT(dev_priv->dev)) {
1183 DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n");
1184 return;
1185 }
1186
92f2584a
JB		 1187 val = I915_READ(PCH_DREF_CONTROL);
1188 enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK |
1189 DREF_SUPERSPREAD_SOURCE_MASK));
1190 WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n");
1191}
1192
ab9412ba
DV		 1193static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1194 enum pipe pipe)
92f2584a
JB		 1195{
1196 int reg;
1197 u32 val;
1198 bool enabled;
1199
ab9412ba 1200 reg = PCH_TRANSCONF(pipe);
92f2584a
JB		 1201 val = I915_READ(reg);
1202 enabled = !!(val & TRANS_ENABLE);
9db4a9c7
JB		 1203 WARN(enabled,
1204 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1205 pipe_name(pipe));
92f2584a
JB		 1206}
1207
4e634389
KP		 1208static bool dp_pipe_enabled(struct drm_i915_private *dev_priv,
1209 enum pipe pipe, u32 port_sel, u32 val)
f0575e92
KP		 1210{
1211 if ((val & DP_PORT_EN) == 0)
1212 return false;
1213
1214 if (HAS_PCH_CPT(dev_priv->dev)) {
1215 u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe);
1216 u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg);
1217 if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel)
1218 return false;
1219 } else {
1220 if ((val & DP_PIPE_MASK) != (pipe << 30))
1221 return false;
1222 }
1223 return true;
1224}
1225
1519b995
KP		 1226static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
1227 enum pipe pipe, u32 val)
1228{
dc0fa718 1229 if ((val & SDVO_ENABLE) == 0)
1519b995
KP		 1230 return false;
1231
1232 if (HAS_PCH_CPT(dev_priv->dev)) {
dc0fa718 1233 if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe))
1519b995
KP		 1234 return false;
1235 } else {
dc0fa718 1236 if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe))
1519b995
KP		 1237 return false;
1238 }
1239 return true;
1240}
1241
1242static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
1243 enum pipe pipe, u32 val)
1244{
1245 if ((val & LVDS_PORT_EN) == 0)
1246 return false;
1247
1248 if (HAS_PCH_CPT(dev_priv->dev)) {
1249 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1250 return false;
1251 } else {
1252 if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
1253 return false;
1254 }
1255 return true;
1256}
1257
1258static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
1259 enum pipe pipe, u32 val)
1260{
1261 if ((val & ADPA_DAC_ENABLE) == 0)
1262 return false;
1263 if (HAS_PCH_CPT(dev_priv->dev)) {
1264 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1265 return false;
1266 } else {
1267 if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
1268 return false;
1269 }
1270 return true;
1271}
1272
291906f1 1273static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
f0575e92 1274 enum pipe pipe, int reg, u32 port_sel)
291906f1 1275{
47a05eca 1276 u32 val = I915_READ(reg);
4e634389 1277 WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val),
291906f1 1278 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
9db4a9c7 1279 reg, pipe_name(pipe));
de9a35ab 1280
75c5da27
DV		 1281 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0
1282 && (val & DP_PIPEB_SELECT),
de9a35ab 1283 "IBX PCH dp port still using transcoder B\n");
291906f1
JB		 1284}
1285
1286static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
1287 enum pipe pipe, int reg)
1288{
47a05eca 1289 u32 val = I915_READ(reg);
b70ad586 1290 WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
23c99e77 1291 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
9db4a9c7 1292 reg, pipe_name(pipe));
de9a35ab 1293
dc0fa718 1294 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0
75c5da27 1295 && (val & SDVO_PIPE_B_SELECT),
de9a35ab 1296 "IBX PCH hdmi port still using transcoder B\n");
291906f1
JB		 1297}
1298
1299static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
1300 enum pipe pipe)
1301{
1302 int reg;
1303 u32 val;
291906f1 1304
f0575e92
KP		 1305 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B);
1306 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
1307 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
291906f1
JB		 1308
1309 reg = PCH_ADPA;
1310 val = I915_READ(reg);
b70ad586 1311 WARN(adpa_pipe_enabled(dev_priv, pipe, val),
291906f1 1312 "PCH VGA enabled on transcoder %c, should be disabled\n",
9db4a9c7 1313 pipe_name(pipe));
291906f1
JB		 1314
1315 reg = PCH_LVDS;
1316 val = I915_READ(reg);
b70ad586 1317 WARN(lvds_pipe_enabled(dev_priv, pipe, val),
291906f1 1318 "PCH LVDS enabled on transcoder %c, should be disabled\n",
9db4a9c7 1319 pipe_name(pipe));
291906f1 1320
e2debe91
PZ		 1321 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB);
1322 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC);
1323 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID);
291906f1
JB		 1324}
1325
426115cf 1326static void vlv_enable_pll(struct intel_crtc *crtc)
87442f73 1327{
426115cf
DV		 1328 struct drm_device *dev = crtc->base.dev;
1329 struct drm_i915_private *dev_priv = dev->dev_private;
1330 int reg = DPLL(crtc->pipe);
1331 u32 dpll = crtc->config.dpll_hw_state.dpll;
87442f73 1332
426115cf 1333 assert_pipe_disabled(dev_priv, crtc->pipe);
87442f73
DV		 1334
1335 /* No really, not for ILK+ */
1336 BUG_ON(!IS_VALLEYVIEW(dev_priv->dev));
1337
1338 /* PLL is protected by panel, make sure we can write it */
1339 if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev))
426115cf 1340 assert_panel_unlocked(dev_priv, crtc->pipe);
87442f73 1341
426115cf
DV		 1342 I915_WRITE(reg, dpll);
1343 POSTING_READ(reg);
1344 udelay(150);
1345
1346 if (wait_for(((I915_READ(reg) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
1347 DRM_ERROR("DPLL %d failed to lock\n", crtc->pipe);
1348
1349 I915_WRITE(DPLL_MD(crtc->pipe), crtc->config.dpll_hw_state.dpll_md);
1350 POSTING_READ(DPLL_MD(crtc->pipe));
87442f73
DV		 1351
1352 /* We do this three times for luck */
426115cf 1353 I915_WRITE(reg, dpll);
87442f73
DV		 1354 POSTING_READ(reg);
1355 udelay(150); /* wait for warmup */
426115cf 1356 I915_WRITE(reg, dpll);
87442f73
DV		 1357 POSTING_READ(reg);
1358 udelay(150); /* wait for warmup */
426115cf 1359 I915_WRITE(reg, dpll);
87442f73
DV		 1360 POSTING_READ(reg);
1361 udelay(150); /* wait for warmup */
1362}
1363
66e3d5c0 1364static void i9xx_enable_pll(struct intel_crtc *crtc)
63d7bbe9 1365{
66e3d5c0
DV		 1366 struct drm_device *dev = crtc->base.dev;
1367 struct drm_i915_private *dev_priv = dev->dev_private;
1368 int reg = DPLL(crtc->pipe);
1369 u32 dpll = crtc->config.dpll_hw_state.dpll;
63d7bbe9 1370
66e3d5c0 1371 assert_pipe_disabled(dev_priv, crtc->pipe);
58c6eaa2 1372
63d7bbe9 1373 /* No really, not for ILK+ */
87442f73 1374 BUG_ON(dev_priv->info->gen >= 5);
63d7bbe9
JB		 1375
1376 /* PLL is protected by panel, make sure we can write it */
66e3d5c0
DV		 1377 if (IS_MOBILE(dev) && !IS_I830(dev))
1378 assert_panel_unlocked(dev_priv, crtc->pipe);
63d7bbe9 1379
66e3d5c0
DV		 1380 I915_WRITE(reg, dpll);
1381
1382 /* Wait for the clocks to stabilize. */
1383 POSTING_READ(reg);
1384 udelay(150);
1385
1386 if (INTEL_INFO(dev)->gen >= 4) {
1387 I915_WRITE(DPLL_MD(crtc->pipe),
1388 crtc->config.dpll_hw_state.dpll_md);
1389 } else {
1390 /* The pixel multiplier can only be updated once the
1391 * DPLL is enabled and the clocks are stable.
1392 *
1393 * So write it again.
1394 */
1395 I915_WRITE(reg, dpll);
1396 }
63d7bbe9
JB		 1397
1398 /* We do this three times for luck */
66e3d5c0 1399 I915_WRITE(reg, dpll);
63d7bbe9
JB		 1400 POSTING_READ(reg);
1401 udelay(150); /* wait for warmup */
66e3d5c0 1402 I915_WRITE(reg, dpll);
63d7bbe9
JB		 1403 POSTING_READ(reg);
1404 udelay(150); /* wait for warmup */
66e3d5c0 1405 I915_WRITE(reg, dpll);
63d7bbe9
JB		 1406 POSTING_READ(reg);
1407 udelay(150); /* wait for warmup */
1408}
1409
1410/**
50b44a44 1411 * i9xx_disable_pll - disable a PLL
63d7bbe9
JB		 1412 * @dev_priv: i915 private structure
1413 * @pipe: pipe PLL to disable
1414 *
1415 * Disable the PLL for @pipe, making sure the pipe is off first.
1416 *
1417 * Note! This is for pre-ILK only.
1418 */
50b44a44 1419static void i9xx_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
63d7bbe9 1420{
63d7bbe9
JB		 1421 /* Don't disable pipe A or pipe A PLLs if needed */
1422 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1423 return;
1424
1425 /* Make sure the pipe isn't still relying on us */
1426 assert_pipe_disabled(dev_priv, pipe);
1427
50b44a44
DV		 1428 I915_WRITE(DPLL(pipe), 0);
1429 POSTING_READ(DPLL(pipe));
63d7bbe9
JB		 1430}
1431
89b667f8
JB		 1432void vlv_wait_port_ready(struct drm_i915_private *dev_priv, int port)
1433{
1434 u32 port_mask;
1435
1436 if (!port)
1437 port_mask = DPLL_PORTB_READY_MASK;
1438 else
1439 port_mask = DPLL_PORTC_READY_MASK;
1440
1441 if (wait_for((I915_READ(DPLL(0)) & port_mask) == 0, 1000))
1442 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1443 'B' + port, I915_READ(DPLL(0)));
1444}
1445
92f2584a 1446/**
e72f9fbf 1447 * ironlake_enable_shared_dpll - enable PCH PLL
92f2584a
JB		 1448 * @dev_priv: i915 private structure
1449 * @pipe: pipe PLL to enable
1450 *
1451 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1452 * drives the transcoder clock.
1453 */
e2b78267 1454static void ironlake_enable_shared_dpll(struct intel_crtc *crtc)
92f2584a 1455{
e2b78267
DV		 1456 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
1457 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
92f2584a 1458
48da64a8 1459 /* PCH PLLs only available on ILK, SNB and IVB */
92f2584a 1460 BUG_ON(dev_priv->info->gen < 5);
87a875bb 1461 if (WARN_ON(pll == NULL))
48da64a8
CW		 1462 return;
1463
1464 if (WARN_ON(pll->refcount == 0))
1465 return;
ee7b9f93 1466
46edb027
DV		 1467 DRM_DEBUG_KMS("enable %s (active %d, on? %d)for crtc %d\n",
1468 pll->name, pll->active, pll->on,
e2b78267 1469 crtc->base.base.id);
92f2584a 1470
cdbd2316
DV		 1471 if (pll->active++) {
1472 WARN_ON(!pll->on);
e9d6944e 1473 assert_shared_dpll_enabled(dev_priv, pll);
ee7b9f93
JB		 1474 return;
1475 }
f4a091c7 1476 WARN_ON(pll->on);
ee7b9f93 1477
46edb027 1478 DRM_DEBUG_KMS("enabling %s\n", pll->name);
e7b903d2 1479 pll->enable(dev_priv, pll);
ee7b9f93 1480 pll->on = true;
92f2584a
JB		 1481}
1482
e2b78267 1483static void intel_disable_shared_dpll(struct intel_crtc *crtc)
92f2584a 1484{
e2b78267
DV		 1485 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
1486 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
4c609cb8 1487
92f2584a
JB		 1488 /* PCH only available on ILK+ */
1489 BUG_ON(dev_priv->info->gen < 5);
87a875bb 1490 if (WARN_ON(pll == NULL))
ee7b9f93 1491 return;
92f2584a 1492
48da64a8
CW		 1493 if (WARN_ON(pll->refcount == 0))
1494 return;
7a419866 1495
46edb027
DV		 1496 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1497 pll->name, pll->active, pll->on,
e2b78267 1498 crtc->base.base.id);
7a419866 1499
48da64a8 1500 if (WARN_ON(pll->active == 0)) {
e9d6944e 1501 assert_shared_dpll_disabled(dev_priv, pll);
48da64a8
CW		 1502 return;
1503 }
1504
e9d6944e 1505 assert_shared_dpll_enabled(dev_priv, pll);
f4a091c7 1506 WARN_ON(!pll->on);
cdbd2316 1507 if (--pll->active)
7a419866 1508 return;
ee7b9f93 1509
46edb027 1510 DRM_DEBUG_KMS("disabling %s\n", pll->name);
e7b903d2 1511 pll->disable(dev_priv, pll);
ee7b9f93 1512 pll->on = false;
92f2584a
JB		 1513}
1514
b8a4f404
PZ		 1515static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1516 enum pipe pipe)
040484af 1517{
23670b32 1518 struct drm_device *dev = dev_priv->dev;
7c26e5c6 1519 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
e2b78267 1520 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
23670b32 1521 uint32_t reg, val, pipeconf_val;
040484af
JB		 1522
1523 /* PCH only available on ILK+ */
1524 BUG_ON(dev_priv->info->gen < 5);
1525
1526 /* Make sure PCH DPLL is enabled */
e72f9fbf 1527 assert_shared_dpll_enabled(dev_priv,
e9d6944e 1528 intel_crtc_to_shared_dpll(intel_crtc));
040484af
JB		 1529
1530 /* FDI must be feeding us bits for PCH ports */
1531 assert_fdi_tx_enabled(dev_priv, pipe);
1532 assert_fdi_rx_enabled(dev_priv, pipe);
1533
23670b32
DV		 1534 if (HAS_PCH_CPT(dev)) {
1535 /* Workaround: Set the timing override bit before enabling the
1536 * pch transcoder. */
1537 reg = TRANS_CHICKEN2(pipe);
1538 val = I915_READ(reg);
1539 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1540 I915_WRITE(reg, val);
59c859d6 1541 }
23670b32 1542
ab9412ba 1543 reg = PCH_TRANSCONF(pipe);
040484af 1544 val = I915_READ(reg);
5f7f726d 1545 pipeconf_val = I915_READ(PIPECONF(pipe));
e9bcff5c
JB		 1546
1547 if (HAS_PCH_IBX(dev_priv->dev)) {
1548 /*
1549 * make the BPC in transcoder be consistent with
1550 * that in pipeconf reg.
1551 */
dfd07d72
DV		 1552 val &= ~PIPECONF_BPC_MASK;
1553 val |= pipeconf_val & PIPECONF_BPC_MASK;
e9bcff5c 1554 }
5f7f726d
PZ		 1555
1556 val &= ~TRANS_INTERLACE_MASK;
1557 if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
7c26e5c6
PZ		 1558 if (HAS_PCH_IBX(dev_priv->dev) &&
1559 intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO))
1560 val |= TRANS_LEGACY_INTERLACED_ILK;
1561 else
1562 val |= TRANS_INTERLACED;
5f7f726d
PZ		 1563 else
1564 val |= TRANS_PROGRESSIVE;
1565
040484af
JB		 1566 I915_WRITE(reg, val | TRANS_ENABLE);
1567 if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
4bb6f1f3 1568 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe));
040484af
JB		 1569}
1570
8fb033d7 1571static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
937bb610 1572 enum transcoder cpu_transcoder)
040484af 1573{
8fb033d7 1574 u32 val, pipeconf_val;
8fb033d7
PZ		 1575
1576 /* PCH only available on ILK+ */
1577 BUG_ON(dev_priv->info->gen < 5);
1578
8fb033d7 1579 /* FDI must be feeding us bits for PCH ports */
1a240d4d 1580 assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
937bb610 1581 assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
8fb033d7 1582
223a6fdf
PZ		 1583 /* Workaround: set timing override bit. */
1584 val = I915_READ(_TRANSA_CHICKEN2);
23670b32 1585 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
223a6fdf
PZ		 1586 I915_WRITE(_TRANSA_CHICKEN2, val);
1587
25f3ef11 1588 val = TRANS_ENABLE;
937bb610 1589 pipeconf_val = I915_READ(PIPECONF(cpu_transcoder));
8fb033d7 1590
9a76b1c6
PZ		 1591 if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) ==
1592 PIPECONF_INTERLACED_ILK)
a35f2679 1593 val |= TRANS_INTERLACED;
8fb033d7
PZ		 1594 else
1595 val |= TRANS_PROGRESSIVE;
1596
ab9412ba
DV		 1597 I915_WRITE(LPT_TRANSCONF, val);
1598 if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100))
937bb610 1599 DRM_ERROR("Failed to enable PCH transcoder\n");
8fb033d7
PZ		 1600}
1601
b8a4f404
PZ		 1602static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
1603 enum pipe pipe)
040484af 1604{
23670b32
DV		 1605 struct drm_device *dev = dev_priv->dev;
1606 uint32_t reg, val;
040484af
JB		 1607
1608 /* FDI relies on the transcoder */
1609 assert_fdi_tx_disabled(dev_priv, pipe);
1610 assert_fdi_rx_disabled(dev_priv, pipe);
1611
291906f1
JB		 1612 /* Ports must be off as well */
1613 assert_pch_ports_disabled(dev_priv, pipe);
1614
ab9412ba 1615 reg = PCH_TRANSCONF(pipe);
040484af
JB		 1616 val = I915_READ(reg);
1617 val &= ~TRANS_ENABLE;
1618 I915_WRITE(reg, val);
1619 /* wait for PCH transcoder off, transcoder state */
1620 if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
4bb6f1f3 1621 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe));
23670b32
DV		 1622
1623 if (!HAS_PCH_IBX(dev)) {
1624 /* Workaround: Clear the timing override chicken bit again. */
1625 reg = TRANS_CHICKEN2(pipe);
1626 val = I915_READ(reg);
1627 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1628 I915_WRITE(reg, val);
1629 }
040484af
JB		 1630}
1631
ab4d966c 1632static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
8fb033d7 1633{
8fb033d7
PZ		 1634 u32 val;
1635
ab9412ba 1636 val = I915_READ(LPT_TRANSCONF);
8fb033d7 1637 val &= ~TRANS_ENABLE;
ab9412ba 1638 I915_WRITE(LPT_TRANSCONF, val);
8fb033d7 1639 /* wait for PCH transcoder off, transcoder state */
ab9412ba 1640 if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50))
8a52fd9f 1641 DRM_ERROR("Failed to disable PCH transcoder\n");
223a6fdf
PZ		 1642
1643 /* Workaround: clear timing override bit. */
1644 val = I915_READ(_TRANSA_CHICKEN2);
23670b32 1645 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
223a6fdf 1646 I915_WRITE(_TRANSA_CHICKEN2, val);
040484af
JB		 1647}
1648
b24e7179 1649/**
309cfea8 1650 * intel_enable_pipe - enable a pipe, asserting requirements
b24e7179
JB		 1651 * @dev_priv: i915 private structure
1652 * @pipe: pipe to enable
040484af 1653 * @pch_port: on ILK+, is this pipe driving a PCH port or not
b24e7179
JB		 1654 *
1655 * Enable @pipe, making sure that various hardware specific requirements
1656 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1657 *
1658 * @pipe should be %PIPE_A or %PIPE_B.
1659 *
1660 * Will wait until the pipe is actually running (i.e. first vblank) before
1661 * returning.
1662 */
040484af
JB		 1663static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
1664 bool pch_port)
b24e7179 1665{
702e7a56
PZ		 1666 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1667 pipe);
1a240d4d 1668 enum pipe pch_transcoder;
b24e7179
JB		 1669 int reg;
1670 u32 val;
1671
58c6eaa2
DV		 1672 assert_planes_disabled(dev_priv, pipe);
1673 assert_sprites_disabled(dev_priv, pipe);
1674
681e5811 1675 if (HAS_PCH_LPT(dev_priv->dev))
cc391bbb
PZ		 1676 pch_transcoder = TRANSCODER_A;
1677 else
1678 pch_transcoder = pipe;
1679
b24e7179
JB		 1680 /*
1681 * A pipe without a PLL won't actually be able to drive bits from
1682 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1683 * need the check.
1684 */
1685 if (!HAS_PCH_SPLIT(dev_priv->dev))
1686 assert_pll_enabled(dev_priv, pipe);
040484af
JB		 1687 else {
1688 if (pch_port) {
1689 /* if driving the PCH, we need FDI enabled */
cc391bbb 1690 assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
1a240d4d
DV		 1691 assert_fdi_tx_pll_enabled(dev_priv,
1692 (enum pipe) cpu_transcoder);
040484af
JB		 1693 }
1694 /* FIXME: assert CPU port conditions for SNB+ */
1695 }
b24e7179 1696
702e7a56 1697 reg = PIPECONF(cpu_transcoder);
b24e7179 1698 val = I915_READ(reg);
00d70b15
CW		 1699 if (val & PIPECONF_ENABLE)
1700 return;
1701
1702 I915_WRITE(reg, val | PIPECONF_ENABLE);
b24e7179
JB		 1703 intel_wait_for_vblank(dev_priv->dev, pipe);
1704}
1705
1706/**
309cfea8 1707 * intel_disable_pipe - disable a pipe, asserting requirements
b24e7179
JB		 1708 * @dev_priv: i915 private structure
1709 * @pipe: pipe to disable
1710 *
1711 * Disable @pipe, making sure that various hardware specific requirements
1712 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1713 *
1714 * @pipe should be %PIPE_A or %PIPE_B.
1715 *
1716 * Will wait until the pipe has shut down before returning.
1717 */
1718static void intel_disable_pipe(struct drm_i915_private *dev_priv,
1719 enum pipe pipe)
1720{
702e7a56
PZ		 1721 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1722 pipe);
b24e7179
JB		 1723 int reg;
1724 u32 val;
1725
1726 /*
1727 * Make sure planes won't keep trying to pump pixels to us,
1728 * or we might hang the display.
1729 */
1730 assert_planes_disabled(dev_priv, pipe);
19332d7a 1731 assert_sprites_disabled(dev_priv, pipe);
b24e7179
JB		 1732
1733 /* Don't disable pipe A or pipe A PLLs if needed */
1734 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1735 return;
1736
702e7a56 1737 reg = PIPECONF(cpu_transcoder);
b24e7179 1738 val = I915_READ(reg);
00d70b15
CW		 1739 if ((val & PIPECONF_ENABLE) == 0)
1740 return;
1741
1742 I915_WRITE(reg, val & ~PIPECONF_ENABLE);
b24e7179
JB		 1743 intel_wait_for_pipe_off(dev_priv->dev, pipe);
1744}
1745
d74362c9
KP		 1746/*
1747 * Plane regs are double buffered, going from enabled->disabled needs a
1748 * trigger in order to latch. The display address reg provides this.
1749 */
6f1d69b0 1750void intel_flush_display_plane(struct drm_i915_private *dev_priv,
d74362c9
KP		 1751 enum plane plane)
1752{
14f86147
DL		 1753 if (dev_priv->info->gen >= 4)
1754 I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane)));
1755 else
1756 I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane)));
d74362c9
KP		 1757}
1758
b24e7179
JB		 1759/**
1760 * intel_enable_plane - enable a display plane on a given pipe
1761 * @dev_priv: i915 private structure
1762 * @plane: plane to enable
1763 * @pipe: pipe being fed
1764 *
1765 * Enable @plane on @pipe, making sure that @pipe is running first.
1766 */
1767static void intel_enable_plane(struct drm_i915_private *dev_priv,
1768 enum plane plane, enum pipe pipe)
1769{
1770 int reg;
1771 u32 val;
1772
1773 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1774 assert_pipe_enabled(dev_priv, pipe);
1775
1776 reg = DSPCNTR(plane);
1777 val = I915_READ(reg);
00d70b15
CW		 1778 if (val & DISPLAY_PLANE_ENABLE)
1779 return;
1780
1781 I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
d74362c9 1782 intel_flush_display_plane(dev_priv, plane);
b24e7179
JB		 1783 intel_wait_for_vblank(dev_priv->dev, pipe);
1784}
1785
b24e7179
JB		 1786/**
1787 * intel_disable_plane - disable a display plane
1788 * @dev_priv: i915 private structure
1789 * @plane: plane to disable
1790 * @pipe: pipe consuming the data
1791 *
1792 * Disable @plane; should be an independent operation.
1793 */
1794static void intel_disable_plane(struct drm_i915_private *dev_priv,
1795 enum plane plane, enum pipe pipe)
1796{
1797 int reg;
1798 u32 val;
1799
1800 reg = DSPCNTR(plane);
1801 val = I915_READ(reg);
00d70b15
CW		 1802 if ((val & DISPLAY_PLANE_ENABLE) == 0)
1803 return;
1804
1805 I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
b24e7179
JB		 1806 intel_flush_display_plane(dev_priv, plane);
1807 intel_wait_for_vblank(dev_priv->dev, pipe);
1808}
1809
693db184
CW		 1810static bool need_vtd_wa(struct drm_device *dev)
1811{
1812#ifdef CONFIG_INTEL_IOMMU
1813 if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped)
1814 return true;
1815#endif
1816 return false;
1817}
1818
127bd2ac 1819int
48b956c5 1820intel_pin_and_fence_fb_obj(struct drm_device *dev,
05394f39 1821 struct drm_i915_gem_object *obj,
919926ae 1822 struct intel_ring_buffer *pipelined)
6b95a207 1823{
ce453d81 1824 struct drm_i915_private *dev_priv = dev->dev_private;
6b95a207
KH		 1825 u32 alignment;
1826 int ret;
1827
05394f39 1828 switch (obj->tiling_mode) {
6b95a207 1829 case I915_TILING_NONE:
534843da
CW		 1830 if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
1831 alignment = 128 * 1024;
a6c45cf0 1832 else if (INTEL_INFO(dev)->gen >= 4)
534843da
CW		 1833 alignment = 4 * 1024;
1834 else
1835 alignment = 64 * 1024;
6b95a207
KH		 1836 break;
1837 case I915_TILING_X:
1838 /* pin() will align the object as required by fence */
1839 alignment = 0;
1840 break;
1841 case I915_TILING_Y:
8bb6e959
DV		 1842 /* Despite that we check this in framebuffer_init userspace can
1843 * screw us over and change the tiling after the fact. Only
1844 * pinned buffers can't change their tiling. */
1845 DRM_DEBUG_DRIVER("Y tiled not allowed for scan out buffers\n");
6b95a207
KH		 1846 return -EINVAL;
1847 default:
1848 BUG();
1849 }
1850
693db184
CW		 1851 /* Note that the w/a also requires 64 PTE of padding following the
1852 * bo. We currently fill all unused PTE with the shadow page and so
1853 * we should always have valid PTE following the scanout preventing
1854 * the VT-d warning.
1855 */
1856 if (need_vtd_wa(dev) && alignment < 256 * 1024)
1857 alignment = 256 * 1024;
1858
ce453d81 1859 dev_priv->mm.interruptible = false;
2da3b9b9 1860 ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
48b956c5 1861 if (ret)
ce453d81 1862 goto err_interruptible;
6b95a207
KH		 1863
1864 /* Install a fence for tiled scan-out. Pre-i965 always needs a
1865 * fence, whereas 965+ only requires a fence if using
1866 * framebuffer compression. For simplicity, we always install
1867 * a fence as the cost is not that onerous.
1868 */
06d98131 1869 ret = i915_gem_object_get_fence(obj);
9a5a53b3
CW		 1870 if (ret)
1871 goto err_unpin;
1690e1eb 1872
9a5a53b3 1873 i915_gem_object_pin_fence(obj);
6b95a207 1874
ce453d81 1875 dev_priv->mm.interruptible = true;
6b95a207 1876 return 0;
48b956c5
CW		 1877
1878err_unpin:
cc98b413 1879 i915_gem_object_unpin_from_display_plane(obj);
ce453d81
CW		 1880err_interruptible:
1881 dev_priv->mm.interruptible = true;
48b956c5 1882 return ret;
6b95a207
KH		 1883}
1884
1690e1eb
CW		 1885void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
1886{
1887 i915_gem_object_unpin_fence(obj);
cc98b413 1888 i915_gem_object_unpin_from_display_plane(obj);
1690e1eb
CW		 1889}
1890
c2c75131
DV		 1891/* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
1892 * is assumed to be a power-of-two. */
bc752862
CW		 1893unsigned long intel_gen4_compute_page_offset(int *x, int *y,
1894 unsigned int tiling_mode,
1895 unsigned int cpp,
1896 unsigned int pitch)
c2c75131 1897{
bc752862
CW		 1898 if (tiling_mode != I915_TILING_NONE) {
1899 unsigned int tile_rows, tiles;
c2c75131 1900
bc752862
CW		 1901 tile_rows = *y / 8;
1902 *y %= 8;
c2c75131 1903
bc752862
CW		 1904 tiles = *x / (512/cpp);
1905 *x %= 512/cpp;
1906
1907 return tile_rows * pitch * 8 + tiles * 4096;
1908 } else {
1909 unsigned int offset;
1910
1911 offset = *y * pitch + *x * cpp;
1912 *y = 0;
1913 *x = (offset & 4095) / cpp;
1914 return offset & -4096;
1915 }
c2c75131
DV		 1916}
1917
17638cd6
JB		 1918static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
1919 int x, int y)
81255565
JB		 1920{
1921 struct drm_device *dev = crtc->dev;
1922 struct drm_i915_private *dev_priv = dev->dev_private;
1923 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1924 struct intel_framebuffer *intel_fb;
05394f39 1925 struct drm_i915_gem_object *obj;
81255565 1926 int plane = intel_crtc->plane;
e506a0c6 1927 unsigned long linear_offset;
81255565 1928 u32 dspcntr;
5eddb70b 1929 u32 reg;
81255565
JB		 1930
1931 switch (plane) {
1932 case 0:
1933 case 1:
1934 break;
1935 default:
84f44ce7 1936 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
81255565
JB		 1937 return -EINVAL;
1938 }
1939
1940 intel_fb = to_intel_framebuffer(fb);
1941 obj = intel_fb->obj;
81255565 1942
5eddb70b
CW		 1943 reg = DSPCNTR(plane);
1944 dspcntr = I915_READ(reg);
81255565
JB		 1945 /* Mask out pixel format bits in case we change it */
1946 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
57779d06
VS		 1947 switch (fb->pixel_format) {
1948 case DRM_FORMAT_C8:
81255565
JB		 1949 dspcntr |= DISPPLANE_8BPP;
1950 break;
57779d06
VS		 1951 case DRM_FORMAT_XRGB1555:
1952 case DRM_FORMAT_ARGB1555:
1953 dspcntr |= DISPPLANE_BGRX555;
81255565 1954 break;
57779d06
VS		 1955 case DRM_FORMAT_RGB565:
1956 dspcntr |= DISPPLANE_BGRX565;
1957 break;
1958 case DRM_FORMAT_XRGB8888:
1959 case DRM_FORMAT_ARGB8888:
1960 dspcntr |= DISPPLANE_BGRX888;
1961 break;
1962 case DRM_FORMAT_XBGR8888:
1963 case DRM_FORMAT_ABGR8888:
1964 dspcntr |= DISPPLANE_RGBX888;
1965 break;
1966 case DRM_FORMAT_XRGB2101010:
1967 case DRM_FORMAT_ARGB2101010:
1968 dspcntr |= DISPPLANE_BGRX101010;
1969 break;
1970 case DRM_FORMAT_XBGR2101010:
1971 case DRM_FORMAT_ABGR2101010:
1972 dspcntr |= DISPPLANE_RGBX101010;
81255565
JB		 1973 break;
1974 default:
baba133a 1975 BUG();
81255565 1976 }
57779d06 1977
a6c45cf0 1978 if (INTEL_INFO(dev)->gen >= 4) {
05394f39 1979 if (obj->tiling_mode != I915_TILING_NONE)
81255565
JB		 1980 dspcntr |= DISPPLANE_TILED;
1981 else
1982 dspcntr &= ~DISPPLANE_TILED;
1983 }
1984
de1aa629
VS		 1985 if (IS_G4X(dev))
1986 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
1987
5eddb70b 1988 I915_WRITE(reg, dspcntr);
81255565 1989
e506a0c6 1990 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
81255565 1991
c2c75131
DV		 1992 if (INTEL_INFO(dev)->gen >= 4) {
1993 intel_crtc->dspaddr_offset =
bc752862
CW		 1994 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
1995 fb->bits_per_pixel / 8,
1996 fb->pitches[0]);
c2c75131
DV		 1997 linear_offset -= intel_crtc->dspaddr_offset;
1998 } else {
e506a0c6 1999 intel_crtc->dspaddr_offset = linear_offset;
c2c75131 2000 }
e506a0c6 2001
f343c5f6
BW		 2002 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2003 i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
2004 fb->pitches[0]);
01f2c773 2005 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
a6c45cf0 2006 if (INTEL_INFO(dev)->gen >= 4) {
c2c75131 2007 I915_MODIFY_DISPBASE(DSPSURF(plane),
f343c5f6 2008 i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
5eddb70b 2009 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
e506a0c6 2010 I915_WRITE(DSPLINOFF(plane), linear_offset);
5eddb70b 2011 } else
f343c5f6 2012 I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset);
5eddb70b 2013 POSTING_READ(reg);
81255565 2014
17638cd6
JB		 2015 return 0;
2016}
2017
2018static int ironlake_update_plane(struct drm_crtc *crtc,
2019 struct drm_framebuffer *fb, int x, int y)
2020{
2021 struct drm_device *dev = crtc->dev;
2022 struct drm_i915_private *dev_priv = dev->dev_private;
2023 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2024 struct intel_framebuffer *intel_fb;
2025 struct drm_i915_gem_object *obj;
2026 int plane = intel_crtc->plane;
e506a0c6 2027 unsigned long linear_offset;
17638cd6
JB		 2028 u32 dspcntr;
2029 u32 reg;
2030
2031 switch (plane) {
2032 case 0:
2033 case 1:
27f8227b 2034 case 2:
17638cd6
JB		 2035 break;
2036 default:
84f44ce7 2037 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
17638cd6
JB		 2038 return -EINVAL;
2039 }
2040
2041 intel_fb = to_intel_framebuffer(fb);
2042 obj = intel_fb->obj;
2043
2044 reg = DSPCNTR(plane);
2045 dspcntr = I915_READ(reg);
2046 /* Mask out pixel format bits in case we change it */
2047 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
57779d06
VS		 2048 switch (fb->pixel_format) {
2049 case DRM_FORMAT_C8:
17638cd6
JB		 2050 dspcntr |= DISPPLANE_8BPP;
2051 break;
57779d06
VS		 2052 case DRM_FORMAT_RGB565:
2053 dspcntr |= DISPPLANE_BGRX565;
17638cd6 2054 break;
57779d06
VS		 2055 case DRM_FORMAT_XRGB8888:
2056 case DRM_FORMAT_ARGB8888:
2057 dspcntr |= DISPPLANE_BGRX888;
2058 break;
2059 case DRM_FORMAT_XBGR8888:
2060 case DRM_FORMAT_ABGR8888:
2061 dspcntr |= DISPPLANE_RGBX888;
2062 break;
2063 case DRM_FORMAT_XRGB2101010:
2064 case DRM_FORMAT_ARGB2101010:
2065 dspcntr |= DISPPLANE_BGRX101010;
2066 break;
2067 case DRM_FORMAT_XBGR2101010:
2068 case DRM_FORMAT_ABGR2101010:
2069 dspcntr |= DISPPLANE_RGBX101010;
17638cd6
JB		 2070 break;
2071 default:
baba133a 2072 BUG();
17638cd6
JB		 2073 }
2074
2075 if (obj->tiling_mode != I915_TILING_NONE)
2076 dspcntr |= DISPPLANE_TILED;
2077 else
2078 dspcntr &= ~DISPPLANE_TILED;
2079
1f5d76db
PZ		 2080 if (IS_HASWELL(dev))
2081 dspcntr &= ~DISPPLANE_TRICKLE_FEED_DISABLE;
2082 else
2083 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
17638cd6
JB		 2084
2085 I915_WRITE(reg, dspcntr);
2086
e506a0c6 2087 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
c2c75131 2088 intel_crtc->dspaddr_offset =
bc752862
CW		 2089 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2090 fb->bits_per_pixel / 8,
2091 fb->pitches[0]);
c2c75131 2092 linear_offset -= intel_crtc->dspaddr_offset;
17638cd6 2093
f343c5f6
BW		 2094 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2095 i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
2096 fb->pitches[0]);
01f2c773 2097 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
c2c75131 2098 I915_MODIFY_DISPBASE(DSPSURF(plane),
f343c5f6 2099 i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
bc1c91eb
DL		 2100 if (IS_HASWELL(dev)) {
2101 I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
2102 } else {
2103 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2104 I915_WRITE(DSPLINOFF(plane), linear_offset);
2105 }
17638cd6
JB		 2106 POSTING_READ(reg);
2107
2108 return 0;
2109}
2110
2111/* Assume fb object is pinned & idle & fenced and just update base pointers */
2112static int
2113intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2114 int x, int y, enum mode_set_atomic state)
2115{
2116 struct drm_device *dev = crtc->dev;
2117 struct drm_i915_private *dev_priv = dev->dev_private;
17638cd6 2118
6b8e6ed0
CW		 2119 if (dev_priv->display.disable_fbc)
2120 dev_priv->display.disable_fbc(dev);
3dec0095 2121 intel_increase_pllclock(crtc);
81255565 2122
6b8e6ed0 2123 return dev_priv->display.update_plane(crtc, fb, x, y);
81255565
JB		 2124}
2125
96a02917
VS		 2126void intel_display_handle_reset(struct drm_device *dev)
2127{
2128 struct drm_i915_private *dev_priv = dev->dev_private;
2129 struct drm_crtc *crtc;
2130
2131 /*
2132 * Flips in the rings have been nuked by the reset,
2133 * so complete all pending flips so that user space
2134 * will get its events and not get stuck.
2135 *
2136 * Also update the base address of all primary
2137 * planes to the the last fb to make sure we're
2138 * showing the correct fb after a reset.
2139 *
2140 * Need to make two loops over the crtcs so that we
2141 * don't try to grab a crtc mutex before the
2142 * pending_flip_queue really got woken up.
2143 */
2144
2145 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2146 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2147 enum plane plane = intel_crtc->plane;
2148
2149 intel_prepare_page_flip(dev, plane);
2150 intel_finish_page_flip_plane(dev, plane);
2151 }
2152
2153 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2154 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2155
2156 mutex_lock(&crtc->mutex);
2157 if (intel_crtc->active)
2158 dev_priv->display.update_plane(crtc, crtc->fb,
2159 crtc->x, crtc->y);
2160 mutex_unlock(&crtc->mutex);
2161 }
2162}
2163
14667a4b
CW		 2164static int
2165intel_finish_fb(struct drm_framebuffer *old_fb)
2166{
2167 struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
2168 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2169 bool was_interruptible = dev_priv->mm.interruptible;
2170 int ret;
2171
14667a4b
CW		 2172 /* Big Hammer, we also need to ensure that any pending
2173 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2174 * current scanout is retired before unpinning the old
2175 * framebuffer.
2176 *
2177 * This should only fail upon a hung GPU, in which case we
2178 * can safely continue.
2179 */
2180 dev_priv->mm.interruptible = false;
2181 ret = i915_gem_object_finish_gpu(obj);
2182 dev_priv->mm.interruptible = was_interruptible;
2183
2184 return ret;
2185}
2186
198598d0
VS		 2187static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y)
2188{
2189 struct drm_device *dev = crtc->dev;
2190 struct drm_i915_master_private *master_priv;
2191 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2192
2193 if (!dev->primary->master)
2194 return;
2195
2196 master_priv = dev->primary->master->driver_priv;
2197 if (!master_priv->sarea_priv)
2198 return;
2199
2200 switch (intel_crtc->pipe) {
2201 case 0:
2202 master_priv->sarea_priv->pipeA_x = x;
2203 master_priv->sarea_priv->pipeA_y = y;
2204 break;
2205 case 1:
2206 master_priv->sarea_priv->pipeB_x = x;
2207 master_priv->sarea_priv->pipeB_y = y;
2208 break;
2209 default:
2210 break;
2211 }
2212}
2213
5c3b82e2 2214static int
3c4fdcfb 2215intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
94352cf9 2216 struct drm_framebuffer *fb)
79e53945
JB		 2217{
2218 struct drm_device *dev = crtc->dev;
6b8e6ed0 2219 struct drm_i915_private *dev_priv = dev->dev_private;
79e53945 2220 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
94352cf9 2221 struct drm_framebuffer *old_fb;
5c3b82e2 2222 int ret;
79e53945
JB		 2223
2224 /* no fb bound */
94352cf9 2225 if (!fb) {
a5071c2f 2226 DRM_ERROR("No FB bound\n");
5c3b82e2
CW		 2227 return 0;
2228 }
2229
7eb552ae 2230 if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
84f44ce7
VS		 2231 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2232 plane_name(intel_crtc->plane),
2233 INTEL_INFO(dev)->num_pipes);
5c3b82e2 2234 return -EINVAL;
79e53945
JB		 2235 }
2236
5c3b82e2 2237 mutex_lock(&dev->struct_mutex);
265db958 2238 ret = intel_pin_and_fence_fb_obj(dev,
94352cf9 2239 to_intel_framebuffer(fb)->obj,
919926ae 2240 NULL);
5c3b82e2
CW		 2241 if (ret != 0) {
2242 mutex_unlock(&dev->struct_mutex);
a5071c2f 2243 DRM_ERROR("pin & fence failed\n");
5c3b82e2
CW		 2244 return ret;
2245 }
79e53945 2246
4d6a3e63
JB		 2247 /* Update pipe size and adjust fitter if needed */
2248 if (i915_fastboot) {
2249 I915_WRITE(PIPESRC(intel_crtc->pipe),
2250 ((crtc->mode.hdisplay - 1) << 16) |
2251 (crtc->mode.vdisplay - 1));
fd4daa9c 2252 if (!intel_crtc->config.pch_pfit.enabled &&
4d6a3e63
JB		 2253 (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) ||
2254 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
2255 I915_WRITE(PF_CTL(intel_crtc->pipe), 0);
2256 I915_WRITE(PF_WIN_POS(intel_crtc->pipe), 0);
2257 I915_WRITE(PF_WIN_SZ(intel_crtc->pipe), 0);
2258 }
2259 }
2260
94352cf9 2261 ret = dev_priv->display.update_plane(crtc, fb, x, y);
4e6cfefc 2262 if (ret) {
94352cf9 2263 intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);
5c3b82e2 2264 mutex_unlock(&dev->struct_mutex);
a5071c2f 2265 DRM_ERROR("failed to update base address\n");
4e6cfefc 2266 return ret;
79e53945 2267 }
3c4fdcfb 2268
94352cf9
DV		 2269 old_fb = crtc->fb;
2270 crtc->fb = fb;
6c4c86f5
DV		 2271 crtc->x = x;
2272 crtc->y = y;
94352cf9 2273
b7f1de28 2274 if (old_fb) {
d7697eea
DV		 2275 if (intel_crtc->active && old_fb != fb)
2276 intel_wait_for_vblank(dev, intel_crtc->pipe);
1690e1eb 2277 intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
b7f1de28 2278 }
652c393a 2279
6b8e6ed0 2280 intel_update_fbc(dev);
4906557e 2281 intel_edp_psr_update(dev);
5c3b82e2 2282 mutex_unlock(&dev->struct_mutex);
79e53945 2283
198598d0 2284 intel_crtc_update_sarea_pos(crtc, x, y);
5c3b82e2
CW		 2285
2286 return 0;
79e53945
JB		 2287}
2288
5e84e1a4
ZW		 2289static void intel_fdi_normal_train(struct drm_crtc *crtc)
2290{
2291 struct drm_device *dev = crtc->dev;
2292 struct drm_i915_private *dev_priv = dev->dev_private;
2293 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2294 int pipe = intel_crtc->pipe;
2295 u32 reg, temp;
2296
2297 /* enable normal train */
2298 reg = FDI_TX_CTL(pipe);
2299 temp = I915_READ(reg);
61e499bf 2300 if (IS_IVYBRIDGE(dev)) {
357555c0
JB		 2301 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2302 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
61e499bf
KP		 2303 } else {
2304 temp &= ~FDI_LINK_TRAIN_NONE;
2305 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
357555c0 2306 }
5e84e1a4
ZW		 2307 I915_WRITE(reg, temp);
2308
2309 reg = FDI_RX_CTL(pipe);
2310 temp = I915_READ(reg);
2311 if (HAS_PCH_CPT(dev)) {
2312 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2313 temp |= FDI_LINK_TRAIN_NORMAL_CPT;
2314 } else {
2315 temp &= ~FDI_LINK_TRAIN_NONE;
2316 temp |= FDI_LINK_TRAIN_NONE;
2317 }
2318 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
2319
2320 /* wait one idle pattern time */
2321 POSTING_READ(reg);
2322 udelay(1000);
357555c0
JB		 2323
2324 /* IVB wants error correction enabled */
2325 if (IS_IVYBRIDGE(dev))
2326 I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
2327 FDI_FE_ERRC_ENABLE);
5e84e1a4
ZW		 2328}
2329
1e833f40
DV		 2330static bool pipe_has_enabled_pch(struct intel_crtc *intel_crtc)
2331{
2332 return intel_crtc->base.enabled && intel_crtc->config.has_pch_encoder;
2333}
2334
01a415fd
DV		 2335static void ivb_modeset_global_resources(struct drm_device *dev)
2336{
2337 struct drm_i915_private *dev_priv = dev->dev_private;
2338 struct intel_crtc *pipe_B_crtc =
2339 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
2340 struct intel_crtc *pipe_C_crtc =
2341 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]);
2342 uint32_t temp;
2343
1e833f40
DV		 2344 /*
2345 * When everything is off disable fdi C so that we could enable fdi B
2346 * with all lanes. Note that we don't care about enabled pipes without
2347 * an enabled pch encoder.
2348 */
2349 if (!pipe_has_enabled_pch(pipe_B_crtc) &&
2350 !pipe_has_enabled_pch(pipe_C_crtc)) {
01a415fd
DV		 2351 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
2352 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
2353
2354 temp = I915_READ(SOUTH_CHICKEN1);
2355 temp &= ~FDI_BC_BIFURCATION_SELECT;
2356 DRM_DEBUG_KMS("disabling fdi C rx\n");
2357 I915_WRITE(SOUTH_CHICKEN1, temp);
2358 }
2359}
2360
8db9d77b
ZW		 2361/* The FDI link training functions for ILK/Ibexpeak. */
2362static void ironlake_fdi_link_train(struct drm_crtc *crtc)
2363{
2364 struct drm_device *dev = crtc->dev;
2365 struct drm_i915_private *dev_priv = dev->dev_private;
2366 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2367 int pipe = intel_crtc->pipe;
0fc932b8 2368 int plane = intel_crtc->plane;
5eddb70b 2369 u32 reg, temp, tries;
8db9d77b 2370
0fc932b8
JB		 2371 /* FDI needs bits from pipe & plane first */
2372 assert_pipe_enabled(dev_priv, pipe);
2373 assert_plane_enabled(dev_priv, plane);
2374
e1a44743
AJ		 2375 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2376 for train result */
5eddb70b
CW		 2377 reg = FDI_RX_IMR(pipe);
2378 temp = I915_READ(reg);
e1a44743
AJ		 2379 temp &= ~FDI_RX_SYMBOL_LOCK;
2380 temp &= ~FDI_RX_BIT_LOCK;
5eddb70b
CW		 2381 I915_WRITE(reg, temp);
2382 I915_READ(reg);
e1a44743
AJ		 2383 udelay(150);
2384
8db9d77b 2385 /* enable CPU FDI TX and PCH FDI RX */
5eddb70b
CW		 2386 reg = FDI_TX_CTL(pipe);
2387 temp = I915_READ(reg);
627eb5a3
DV		 2388 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2389 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
8db9d77b
ZW		 2390 temp &= ~FDI_LINK_TRAIN_NONE;
2391 temp |= FDI_LINK_TRAIN_PATTERN_1;
5eddb70b 2392 I915_WRITE(reg, temp | FDI_TX_ENABLE);
8db9d77b 2393
5eddb70b
CW		 2394 reg = FDI_RX_CTL(pipe);
2395 temp = I915_READ(reg);
8db9d77b
ZW		 2396 temp &= ~FDI_LINK_TRAIN_NONE;
2397 temp |= FDI_LINK_TRAIN_PATTERN_1;
5eddb70b
CW		 2398 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2399
2400 POSTING_READ(reg);
8db9d77b
ZW		 2401 udelay(150);
2402
5b2adf89 2403 /* Ironlake workaround, enable clock pointer after FDI enable*/
8f5718a6
DV		 2404 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2405 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
2406 FDI_RX_PHASE_SYNC_POINTER_EN);
5b2adf89 2407
5eddb70b 2408 reg = FDI_RX_IIR(pipe);
e1a44743 2409 for (tries = 0; tries < 5; tries++) {
5eddb70b 2410 temp = I915_READ(reg);
8db9d77b
ZW		 2411 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2412
2413 if ((temp & FDI_RX_BIT_LOCK)) {
2414 DRM_DEBUG_KMS("FDI train 1 done.\n");
5eddb70b 2415 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
8db9d77b
ZW		 2416 break;
2417 }
8db9d77b 2418 }
e1a44743 2419 if (tries == 5)
5eddb70b 2420 DRM_ERROR("FDI train 1 fail!\n");
8db9d77b
ZW		 2421
2422 /* Train 2 */
5eddb70b
CW		 2423 reg = FDI_TX_CTL(pipe);
2424 temp = I915_READ(reg);
8db9d77b
ZW		 2425 temp &= ~FDI_LINK_TRAIN_NONE;
2426 temp |= FDI_LINK_TRAIN_PATTERN_2;
5eddb70b 2427 I915_WRITE(reg, temp);
8db9d77b 2428
5eddb70b
CW		 2429 reg = FDI_RX_CTL(pipe);
2430 temp = I915_READ(reg);
8db9d77b
ZW		 2431 temp &= ~FDI_LINK_TRAIN_NONE;
2432 temp |= FDI_LINK_TRAIN_PATTERN_2;
5eddb70b 2433 I915_WRITE(reg, temp);
8db9d77b 2434
5eddb70b
CW		 2435 POSTING_READ(reg);
2436 udelay(150);
8db9d77b 2437
5eddb70b 2438 reg = FDI_RX_IIR(pipe);
e1a44743 2439 for (tries = 0; tries < 5; tries++) {
5eddb70b 2440 temp = I915_READ(reg);
8db9d77b
ZW		 2441 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2442
2443 if (temp & FDI_RX_SYMBOL_LOCK) {
5eddb70b 2444 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
8db9d77b
ZW		 2445 DRM_DEBUG_KMS("FDI train 2 done.\n");
2446 break;
2447 }
8db9d77b 2448 }
e1a44743 2449 if (tries == 5)
5eddb70b 2450 DRM_ERROR("FDI train 2 fail!\n");
8db9d77b
ZW		 2451
2452 DRM_DEBUG_KMS("FDI train done\n");
5c5313c8 2453
8db9d77b
ZW		 2454}
2455
0206e353 2456static const int snb_b_fdi_train_param[] = {
8db9d77b
ZW		 2457 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
2458 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
2459 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
2460 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
2461};
2462
2463/* The FDI link training functions for SNB/Cougarpoint. */
2464static void gen6_fdi_link_train(struct drm_crtc *crtc)
2465{
2466 struct drm_device *dev = crtc->dev;
2467 struct drm_i915_private *dev_priv = dev->dev_private;
2468 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2469 int pipe = intel_crtc->pipe;
fa37d39e 2470 u32 reg, temp, i, retry;
8db9d77b 2471
e1a44743
AJ		 2472 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2473 for train result */
5eddb70b
CW		 2474 reg = FDI_RX_IMR(pipe);
2475 temp = I915_READ(reg);
e1a44743
AJ		 2476 temp &= ~FDI_RX_SYMBOL_LOCK;
2477 temp &= ~FDI_RX_BIT_LOCK;
5eddb70b
CW		 2478 I915_WRITE(reg, temp);
2479
2480 POSTING_READ(reg);
e1a44743
AJ		 2481 udelay(150);
2482
8db9d77b 2483 /* enable CPU FDI TX and PCH FDI RX */
5eddb70b
CW		 2484 reg = FDI_TX_CTL(pipe);
2485 temp = I915_READ(reg);
627eb5a3
DV		 2486 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2487 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
8db9d77b
ZW		 2488 temp &= ~FDI_LINK_TRAIN_NONE;
2489 temp |= FDI_LINK_TRAIN_PATTERN_1;
2490 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2491 /* SNB-B */
2492 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
5eddb70b 2493 I915_WRITE(reg, temp | FDI_TX_ENABLE);
8db9d77b 2494
d74cf324
DV		 2495 I915_WRITE(FDI_RX_MISC(pipe),
2496 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2497
5eddb70b
CW		 2498 reg = FDI_RX_CTL(pipe);
2499 temp = I915_READ(reg);
8db9d77b
ZW		 2500 if (HAS_PCH_CPT(dev)) {
2501 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2502 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2503 } else {
2504 temp &= ~FDI_LINK_TRAIN_NONE;
2505 temp |= FDI_LINK_TRAIN_PATTERN_1;
2506 }
5eddb70b
CW		 2507 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2508
2509 POSTING_READ(reg);
8db9d77b
ZW		 2510 udelay(150);
2511
0206e353 2512 for (i = 0; i < 4; i++) {
5eddb70b
CW		 2513 reg = FDI_TX_CTL(pipe);
2514 temp = I915_READ(reg);
8db9d77b
ZW		 2515 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2516 temp |= snb_b_fdi_train_param[i];
5eddb70b
CW		 2517 I915_WRITE(reg, temp);
2518
2519 POSTING_READ(reg);
8db9d77b
ZW		 2520 udelay(500);
2521
fa37d39e
SP		 2522 for (retry = 0; retry < 5; retry++) {
2523 reg = FDI_RX_IIR(pipe);
2524 temp = I915_READ(reg);
2525 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2526 if (temp & FDI_RX_BIT_LOCK) {
2527 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2528 DRM_DEBUG_KMS("FDI train 1 done.\n");
2529 break;
2530 }
2531 udelay(50);
8db9d77b 2532 }
fa37d39e
SP		 2533 if (retry < 5)
2534 break;
8db9d77b
ZW		 2535 }
2536 if (i == 4)
5eddb70b 2537 DRM_ERROR("FDI train 1 fail!\n");
8db9d77b
ZW		 2538
2539 /* Train 2 */
5eddb70b
CW		 2540 reg = FDI_TX_CTL(pipe);
2541 temp = I915_READ(reg);
8db9d77b
ZW		 2542 temp &= ~FDI_LINK_TRAIN_NONE;
2543 temp |= FDI_LINK_TRAIN_PATTERN_2;
2544 if (IS_GEN6(dev)) {
2545 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2546 /* SNB-B */
2547 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2548 }
5eddb70b 2549 I915_WRITE(reg, temp);
8db9d77b 2550
5eddb70b
CW		 2551 reg = FDI_RX_CTL(pipe);
2552 temp = I915_READ(reg);
8db9d77b
ZW		 2553 if (HAS_PCH_CPT(dev)) {
2554 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2555 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2556 } else {
2557 temp &= ~FDI_LINK_TRAIN_NONE;
2558 temp |= FDI_LINK_TRAIN_PATTERN_2;
2559 }
5eddb70b
CW		 2560 I915_WRITE(reg, temp);
2561
2562 POSTING_READ(reg);
8db9d77b
ZW		 2563 udelay(150);
2564
0206e353 2565 for (i = 0; i < 4; i++) {
5eddb70b
CW		 2566 reg = FDI_TX_CTL(pipe);
2567 temp = I915_READ(reg);
8db9d77b
ZW		 2568 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2569 temp |= snb_b_fdi_train_param[i];
5eddb70b
CW		 2570 I915_WRITE(reg, temp);
2571
2572 POSTING_READ(reg);
8db9d77b
ZW		 2573 udelay(500);
2574
fa37d39e
SP		 2575 for (retry = 0; retry < 5; retry++) {
2576 reg = FDI_RX_IIR(pipe);
2577 temp = I915_READ(reg);
2578 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2579 if (temp & FDI_RX_SYMBOL_LOCK) {
2580 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2581 DRM_DEBUG_KMS("FDI train 2 done.\n");
2582 break;
2583 }
2584 udelay(50);
8db9d77b 2585 }
fa37d39e
SP		 2586 if (retry < 5)
2587 break;
8db9d77b
ZW		 2588 }
2589 if (i == 4)
5eddb70b 2590 DRM_ERROR("FDI train 2 fail!\n");
8db9d77b
ZW		 2591
2592 DRM_DEBUG_KMS("FDI train done.\n");
2593}
2594
357555c0
JB		 2595/* Manual link training for Ivy Bridge A0 parts */
2596static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
2597{
2598 struct drm_device *dev = crtc->dev;
2599 struct drm_i915_private *dev_priv = dev->dev_private;
2600 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2601 int pipe = intel_crtc->pipe;
139ccd3f 2602 u32 reg, temp, i, j;
357555c0
JB		 2603
2604 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2605 for train result */
2606 reg = FDI_RX_IMR(pipe);
2607 temp = I915_READ(reg);
2608 temp &= ~FDI_RX_SYMBOL_LOCK;
2609 temp &= ~FDI_RX_BIT_LOCK;
2610 I915_WRITE(reg, temp);
2611
2612 POSTING_READ(reg);
2613 udelay(150);
2614
01a415fd
DV		 2615 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2616 I915_READ(FDI_RX_IIR(pipe)));
2617
139ccd3f
JB		 2618 /* Try each vswing and preemphasis setting twice before moving on */
2619 for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) {
2620 /* disable first in case we need to retry */
2621 reg = FDI_TX_CTL(pipe);
2622 temp = I915_READ(reg);
2623 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
2624 temp &= ~FDI_TX_ENABLE;
2625 I915_WRITE(reg, temp);
357555c0 2626
139ccd3f
JB		 2627 reg = FDI_RX_CTL(pipe);
2628 temp = I915_READ(reg);
2629 temp &= ~FDI_LINK_TRAIN_AUTO;
2630 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2631 temp &= ~FDI_RX_ENABLE;
2632 I915_WRITE(reg, temp);
357555c0 2633
139ccd3f 2634 /* enable CPU FDI TX and PCH FDI RX */
357555c0
JB		 2635 reg = FDI_TX_CTL(pipe);
2636 temp = I915_READ(reg);
139ccd3f
JB		 2637 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2638 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2639 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
357555c0 2640 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
139ccd3f
JB		 2641 temp |= snb_b_fdi_train_param[j/2];
2642 temp |= FDI_COMPOSITE_SYNC;
2643 I915_WRITE(reg, temp | FDI_TX_ENABLE);
357555c0 2644
139ccd3f
JB		 2645 I915_WRITE(FDI_RX_MISC(pipe),
2646 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
357555c0 2647
139ccd3f 2648 reg = FDI_RX_CTL(pipe);
357555c0 2649 temp = I915_READ(reg);
139ccd3f
JB		 2650 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2651 temp |= FDI_COMPOSITE_SYNC;
2652 I915_WRITE(reg, temp | FDI_RX_ENABLE);
357555c0 2653
139ccd3f
JB		 2654 POSTING_READ(reg);
2655 udelay(1); /* should be 0.5us */
357555c0 2656
139ccd3f
JB		 2657 for (i = 0; i < 4; i++) {
2658 reg = FDI_RX_IIR(pipe);
2659 temp = I915_READ(reg);
2660 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
357555c0 2661
139ccd3f
JB		 2662 if (temp & FDI_RX_BIT_LOCK ||
2663 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
2664 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2665 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
2666 i);
2667 break;
2668 }
2669 udelay(1); /* should be 0.5us */
2670 }
2671 if (i == 4) {
2672 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2);
2673 continue;
2674 }
357555c0 2675
139ccd3f 2676 /* Train 2 */
357555c0
JB		 2677 reg = FDI_TX_CTL(pipe);
2678 temp = I915_READ(reg);
139ccd3f
JB		 2679 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2680 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
2681 I915_WRITE(reg, temp);
2682
2683 reg = FDI_RX_CTL(pipe);
2684 temp = I915_READ(reg);
2685 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2686 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
357555c0
JB		 2687 I915_WRITE(reg, temp);
2688
2689 POSTING_READ(reg);
139ccd3f 2690 udelay(2); /* should be 1.5us */
357555c0 2691
139ccd3f
JB		 2692 for (i = 0; i < 4; i++) {
2693 reg = FDI_RX_IIR(pipe);
2694 temp = I915_READ(reg);
2695 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
357555c0 2696
139ccd3f
JB		 2697 if (temp & FDI_RX_SYMBOL_LOCK ||
2698 (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) {
2699 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2700 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
2701 i);
2702 goto train_done;
2703 }
2704 udelay(2); /* should be 1.5us */
357555c0 2705 }
139ccd3f
JB		 2706 if (i == 4)
2707 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2);
357555c0 2708 }
357555c0 2709
139ccd3f 2710train_done:
357555c0
JB		 2711 DRM_DEBUG_KMS("FDI train done.\n");
2712}
2713
88cefb6c 2714static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
2c07245f 2715{
88cefb6c 2716 struct drm_device *dev = intel_crtc->base.dev;
2c07245f 2717 struct drm_i915_private *dev_priv = dev->dev_private;
2c07245f 2718 int pipe = intel_crtc->pipe;
5eddb70b 2719 u32 reg, temp;
79e53945 2720
c64e311e 2721
c98e9dcf 2722 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
5eddb70b
CW		 2723 reg = FDI_RX_CTL(pipe);
2724 temp = I915_READ(reg);
627eb5a3
DV		 2725 temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
2726 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
dfd07d72 2727 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
5eddb70b
CW		 2728 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
2729
2730 POSTING_READ(reg);
c98e9dcf
JB		 2731 udelay(200);
2732
2733 /* Switch from Rawclk to PCDclk */
5eddb70b
CW		 2734 temp = I915_READ(reg);
2735 I915_WRITE(reg, temp | FDI_PCDCLK);
2736
2737 POSTING_READ(reg);
c98e9dcf
JB		 2738 udelay(200);
2739
20749730
PZ		 2740 /* Enable CPU FDI TX PLL, always on for Ironlake */
2741 reg = FDI_TX_CTL(pipe);
2742 temp = I915_READ(reg);
2743 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
2744 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
5eddb70b 2745
20749730
PZ		 2746 POSTING_READ(reg);
2747 udelay(100);
6be4a607 2748 }
0e23b99d
JB		 2749}
2750
88cefb6c
DV		 2751static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
2752{
2753 struct drm_device *dev = intel_crtc->base.dev;
2754 struct drm_i915_private *dev_priv = dev->dev_private;
2755 int pipe = intel_crtc->pipe;
2756 u32 reg, temp;
2757
2758 /* Switch from PCDclk to Rawclk */
2759 reg = FDI_RX_CTL(pipe);
2760 temp = I915_READ(reg);
2761 I915_WRITE(reg, temp & ~FDI_PCDCLK);
2762
2763 /* Disable CPU FDI TX PLL */
2764 reg = FDI_TX_CTL(pipe);
2765 temp = I915_READ(reg);
2766 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
2767
2768 POSTING_READ(reg);
2769 udelay(100);
2770
2771 reg = FDI_RX_CTL(pipe);
2772 temp = I915_READ(reg);
2773 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
2774
2775 /* Wait for the clocks to turn off. */
2776 POSTING_READ(reg);
2777 udelay(100);
2778}
2779
0fc932b8
JB		 2780static void ironlake_fdi_disable(struct drm_crtc *crtc)
2781{
2782 struct drm_device *dev = crtc->dev;
2783 struct drm_i915_private *dev_priv = dev->dev_private;
2784 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2785 int pipe = intel_crtc->pipe;
2786 u32 reg, temp;
2787
2788 /* disable CPU FDI tx and PCH FDI rx */
2789 reg = FDI_TX_CTL(pipe);
2790 temp = I915_READ(reg);
2791 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
2792 POSTING_READ(reg);
2793
2794 reg = FDI_RX_CTL(pipe);
2795 temp = I915_READ(reg);
2796 temp &= ~(0x7 << 16);
dfd07d72 2797 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
0fc932b8
JB		 2798 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
2799
2800 POSTING_READ(reg);
2801 udelay(100);
2802
2803 /* Ironlake workaround, disable clock pointer after downing FDI */
6f06ce18
JB		 2804 if (HAS_PCH_IBX(dev)) {
2805 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
6f06ce18 2806 }
0fc932b8
JB		 2807
2808 /* still set train pattern 1 */
2809 reg = FDI_TX_CTL(pipe);
2810 temp = I915_READ(reg);
2811 temp &= ~FDI_LINK_TRAIN_NONE;
2812 temp |= FDI_LINK_TRAIN_PATTERN_1;
2813 I915_WRITE(reg, temp);
2814
2815 reg = FDI_RX_CTL(pipe);
2816 temp = I915_READ(reg);
2817 if (HAS_PCH_CPT(dev)) {
2818 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2819 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2820 } else {
2821 temp &= ~FDI_LINK_TRAIN_NONE;
2822 temp |= FDI_LINK_TRAIN_PATTERN_1;
2823 }
2824 /* BPC in FDI rx is consistent with that in PIPECONF */
2825 temp &= ~(0x07 << 16);
dfd07d72 2826 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
0fc932b8
JB		 2827 I915_WRITE(reg, temp);
2828
2829 POSTING_READ(reg);
2830 udelay(100);
2831}
2832
5bb61643
CW		 2833static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
2834{
2835 struct drm_device *dev = crtc->dev;
2836 struct drm_i915_private *dev_priv = dev->dev_private;
10d83730 2837 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5bb61643
CW		 2838 unsigned long flags;
2839 bool pending;
2840
10d83730
VS		 2841 if (i915_reset_in_progress(&dev_priv->gpu_error) ||
2842 intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
5bb61643
CW		 2843 return false;
2844
2845 spin_lock_irqsave(&dev->event_lock, flags);
2846 pending = to_intel_crtc(crtc)->unpin_work != NULL;
2847 spin_unlock_irqrestore(&dev->event_lock, flags);
2848
2849 return pending;
2850}
2851
e6c3a2a6
CW		 2852static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
2853{
0f91128d 2854 struct drm_device *dev = crtc->dev;
5bb61643 2855 struct drm_i915_private *dev_priv = dev->dev_private;
e6c3a2a6
CW		 2856
2857 if (crtc->fb == NULL)
2858 return;
2859
2c10d571
DV		 2860 WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
2861
5bb61643
CW		 2862 wait_event(dev_priv->pending_flip_queue,
2863 !intel_crtc_has_pending_flip(crtc));
2864
0f91128d
CW		 2865 mutex_lock(&dev->struct_mutex);
2866 intel_finish_fb(crtc->fb);
2867 mutex_unlock(&dev->struct_mutex);
e6c3a2a6
CW		 2868}
2869
e615efe4
ED		 2870/* Program iCLKIP clock to the desired frequency */
2871static void lpt_program_iclkip(struct drm_crtc *crtc)
2872{
2873 struct drm_device *dev = crtc->dev;
2874 struct drm_i915_private *dev_priv = dev->dev_private;
2875 u32 divsel, phaseinc, auxdiv, phasedir = 0;
2876 u32 temp;
2877
09153000
DV		 2878 mutex_lock(&dev_priv->dpio_lock);
2879
e615efe4
ED		 2880 /* It is necessary to ungate the pixclk gate prior to programming
2881 * the divisors, and gate it back when it is done.
2882 */
2883 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
2884
2885 /* Disable SSCCTL */
2886 intel_sbi_write(dev_priv, SBI_SSCCTL6,
988d6ee8
PZ		 2887 intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) |
2888 SBI_SSCCTL_DISABLE,
2889 SBI_ICLK);
e615efe4
ED		 2890
2891 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
2892 if (crtc->mode.clock == 20000) {
2893 auxdiv = 1;
2894 divsel = 0x41;
2895 phaseinc = 0x20;
2896 } else {
2897 /* The iCLK virtual clock root frequency is in MHz,
2898 * but the crtc->mode.clock in in KHz. To get the divisors,
2899 * it is necessary to divide one by another, so we
2900 * convert the virtual clock precision to KHz here for higher
2901 * precision.
2902 */
2903 u32 iclk_virtual_root_freq = 172800 * 1000;
2904 u32 iclk_pi_range = 64;
2905 u32 desired_divisor, msb_divisor_value, pi_value;
2906
2907 desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock);
2908 msb_divisor_value = desired_divisor / iclk_pi_range;
2909 pi_value = desired_divisor % iclk_pi_range;
2910
2911 auxdiv = 0;
2912 divsel = msb_divisor_value - 2;
2913 phaseinc = pi_value;
2914 }
2915
2916 /* This should not happen with any sane values */
2917 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
2918 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
2919 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
2920 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
2921
2922 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
2923 crtc->mode.clock,
2924 auxdiv,
2925 divsel,
2926 phasedir,
2927 phaseinc);
2928
2929 /* Program SSCDIVINTPHASE6 */
988d6ee8 2930 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
e615efe4
ED		 2931 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
2932 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
2933 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
2934 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
2935 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
2936 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
988d6ee8 2937 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
e615efe4
ED		 2938
2939 /* Program SSCAUXDIV */
988d6ee8 2940 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
e615efe4
ED		 2941 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
2942 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
988d6ee8 2943 intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
e615efe4
ED		 2944
2945 /* Enable modulator and associated divider */
988d6ee8 2946 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
e615efe4 2947 temp &= ~SBI_SSCCTL_DISABLE;
988d6ee8 2948 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
e615efe4
ED		 2949
2950 /* Wait for initialization time */
2951 udelay(24);
2952
2953 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
09153000
DV		 2954
2955 mutex_unlock(&dev_priv->dpio_lock);
e615efe4
ED		 2956}
2957
275f01b2
DV		 2958static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc,
2959 enum pipe pch_transcoder)
2960{
2961 struct drm_device *dev = crtc->base.dev;
2962 struct drm_i915_private *dev_priv = dev->dev_private;
2963 enum transcoder cpu_transcoder = crtc->config.cpu_transcoder;
2964
2965 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder),
2966 I915_READ(HTOTAL(cpu_transcoder)));
2967 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder),
2968 I915_READ(HBLANK(cpu_transcoder)));
2969 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder),
2970 I915_READ(HSYNC(cpu_transcoder)));
2971
2972 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder),
2973 I915_READ(VTOTAL(cpu_transcoder)));
2974 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder),
2975 I915_READ(VBLANK(cpu_transcoder)));
2976 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder),
2977 I915_READ(VSYNC(cpu_transcoder)));
2978 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder),
2979 I915_READ(VSYNCSHIFT(cpu_transcoder)));
2980}
2981
f67a559d
JB		 2982/*
2983 * Enable PCH resources required for PCH ports:
2984 * - PCH PLLs
2985 * - FDI training & RX/TX
2986 * - update transcoder timings
2987 * - DP transcoding bits
2988 * - transcoder
2989 */
2990static void ironlake_pch_enable(struct drm_crtc *crtc)
0e23b99d
JB		 2991{
2992 struct drm_device *dev = crtc->dev;
2993 struct drm_i915_private *dev_priv = dev->dev_private;
2994 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2995 int pipe = intel_crtc->pipe;
ee7b9f93 2996 u32 reg, temp;
2c07245f 2997
ab9412ba 2998 assert_pch_transcoder_disabled(dev_priv, pipe);
e7e164db 2999
cd986abb
DV		 3000 /* Write the TU size bits before fdi link training, so that error
3001 * detection works. */
3002 I915_WRITE(FDI_RX_TUSIZE1(pipe),
3003 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
3004
c98e9dcf 3005 /* For PCH output, training FDI link */
674cf967 3006 dev_priv->display.fdi_link_train(crtc);
2c07245f 3007
3ad8a208
DV		 3008 /* We need to program the right clock selection before writing the pixel
3009 * mutliplier into the DPLL. */
303b81e0 3010 if (HAS_PCH_CPT(dev)) {
ee7b9f93 3011 u32 sel;
4b645f14 3012
c98e9dcf 3013 temp = I915_READ(PCH_DPLL_SEL);
11887397
DV		 3014 temp |= TRANS_DPLL_ENABLE(pipe);
3015 sel = TRANS_DPLLB_SEL(pipe);
a43f6e0f 3016 if (intel_crtc->config.shared_dpll == DPLL_ID_PCH_PLL_B)
ee7b9f93
JB		 3017 temp |= sel;
3018 else
3019 temp &= ~sel;
c98e9dcf 3020 I915_WRITE(PCH_DPLL_SEL, temp);
c98e9dcf 3021 }
5eddb70b 3022
3ad8a208
DV		 3023 /* XXX: pch pll's can be enabled any time before we enable the PCH
3024 * transcoder, and we actually should do this to not upset any PCH
3025 * transcoder that already use the clock when we share it.
3026 *
3027 * Note that enable_shared_dpll tries to do the right thing, but
3028 * get_shared_dpll unconditionally resets the pll - we need that to have
3029 * the right LVDS enable sequence. */
3030 ironlake_enable_shared_dpll(intel_crtc);
3031
d9b6cb56
JB		 3032 /* set transcoder timing, panel must allow it */
3033 assert_panel_unlocked(dev_priv, pipe);
275f01b2 3034 ironlake_pch_transcoder_set_timings(intel_crtc, pipe);
8db9d77b 3035
303b81e0 3036 intel_fdi_normal_train(crtc);
5e84e1a4 3037
c98e9dcf
JB		 3038 /* For PCH DP, enable TRANS_DP_CTL */
3039 if (HAS_PCH_CPT(dev) &&
417e822d
KP		 3040 (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
3041 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
dfd07d72 3042 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
5eddb70b
CW		 3043 reg = TRANS_DP_CTL(pipe);
3044 temp = I915_READ(reg);
3045 temp &= ~(TRANS_DP_PORT_SEL_MASK |
220cad3c
EA		 3046 TRANS_DP_SYNC_MASK |
3047 TRANS_DP_BPC_MASK);
5eddb70b
CW		 3048 temp |= (TRANS_DP_OUTPUT_ENABLE |
3049 TRANS_DP_ENH_FRAMING);
9325c9f0 3050 temp |= bpc << 9; /* same format but at 11:9 */
c98e9dcf
JB		 3051
3052 if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
5eddb70b 3053 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
c98e9dcf 3054 if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
5eddb70b 3055 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
c98e9dcf
JB		 3056
3057 switch (intel_trans_dp_port_sel(crtc)) {
3058 case PCH_DP_B:
5eddb70b 3059 temp |= TRANS_DP_PORT_SEL_B;
c98e9dcf
JB		 3060 break;
3061 case PCH_DP_C:
5eddb70b 3062 temp |= TRANS_DP_PORT_SEL_C;
c98e9dcf
JB		 3063 break;
3064 case PCH_DP_D:
5eddb70b 3065 temp |= TRANS_DP_PORT_SEL_D;
c98e9dcf
JB		 3066 break;
3067 default:
e95d41e1 3068 BUG();
32f9d658 3069 }
2c07245f 3070
5eddb70b 3071 I915_WRITE(reg, temp);
6be4a607 3072 }
b52eb4dc 3073
b8a4f404 3074 ironlake_enable_pch_transcoder(dev_priv, pipe);
f67a559d
JB		 3075}
3076
1507e5bd
PZ		 3077static void lpt_pch_enable(struct drm_crtc *crtc)
3078{
3079 struct drm_device *dev = crtc->dev;
3080 struct drm_i915_private *dev_priv = dev->dev_private;
3081 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 3082 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
1507e5bd 3083
ab9412ba 3084 assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
1507e5bd 3085
8c52b5e8 3086 lpt_program_iclkip(crtc);
1507e5bd 3087
0540e488 3088 /* Set transcoder timing. */
275f01b2 3089 ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A);
1507e5bd 3090
937bb610 3091 lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
f67a559d
JB		 3092}
3093
e2b78267 3094static void intel_put_shared_dpll(struct intel_crtc *crtc)
ee7b9f93 3095{
e2b78267 3096 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
ee7b9f93
JB		 3097
3098 if (pll == NULL)
3099 return;
3100
3101 if (pll->refcount == 0) {
46edb027 3102 WARN(1, "bad %s refcount\n", pll->name);
ee7b9f93
JB		 3103 return;
3104 }
3105
f4a091c7
DV		 3106 if (--pll->refcount == 0) {
3107 WARN_ON(pll->on);
3108 WARN_ON(pll->active);
3109 }
3110
a43f6e0f 3111 crtc->config.shared_dpll = DPLL_ID_PRIVATE;
ee7b9f93
JB		 3112}
3113
b89a1d39 3114static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc)
ee7b9f93 3115{
e2b78267
DV		 3116 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
3117 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
3118 enum intel_dpll_id i;
ee7b9f93 3119
ee7b9f93 3120 if (pll) {
46edb027
DV		 3121 DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
3122 crtc->base.base.id, pll->name);
e2b78267 3123 intel_put_shared_dpll(crtc);
ee7b9f93
JB		 3124 }
3125
98b6bd99
DV		 3126 if (HAS_PCH_IBX(dev_priv->dev)) {
3127 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
d94ab068 3128 i = (enum intel_dpll_id) crtc->pipe;
e72f9fbf 3129 pll = &dev_priv->shared_dplls[i];
98b6bd99 3130
46edb027
DV		 3131 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
3132 crtc->base.base.id, pll->name);
98b6bd99
DV		 3133
3134 goto found;
3135 }
3136
e72f9fbf
DV		 3137 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3138 pll = &dev_priv->shared_dplls[i];
ee7b9f93
JB		 3139
3140 /* Only want to check enabled timings first */
3141 if (pll->refcount == 0)
3142 continue;
3143
b89a1d39
DV		 3144 if (memcmp(&crtc->config.dpll_hw_state, &pll->hw_state,
3145 sizeof(pll->hw_state)) == 0) {
46edb027 3146 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
e2b78267 3147 crtc->base.base.id,
46edb027 3148 pll->name, pll->refcount, pll->active);
ee7b9f93
JB		 3149
3150 goto found;
3151 }
3152 }
3153
3154 /* Ok no matching timings, maybe there's a free one? */
e72f9fbf
DV		 3155 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3156 pll = &dev_priv->shared_dplls[i];
ee7b9f93 3157 if (pll->refcount == 0) {
46edb027
DV		 3158 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
3159 crtc->base.base.id, pll->name);
ee7b9f93
JB		 3160 goto found;
3161 }
3162 }
3163
3164 return NULL;
3165
3166found:
a43f6e0f 3167 crtc->config.shared_dpll = i;
46edb027
DV		 3168 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name,
3169 pipe_name(crtc->pipe));
ee7b9f93 3170
cdbd2316 3171 if (pll->active == 0) {
66e985c0
DV		 3172 memcpy(&pll->hw_state, &crtc->config.dpll_hw_state,
3173 sizeof(pll->hw_state));
3174
46edb027 3175 DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
cdbd2316 3176 WARN_ON(pll->on);
e9d6944e 3177 assert_shared_dpll_disabled(dev_priv, pll);
ee7b9f93 3178
15bdd4cf 3179 pll->mode_set(dev_priv, pll);
cdbd2316
DV		 3180 }
3181 pll->refcount++;
e04c7350 3182
ee7b9f93
JB		 3183 return pll;
3184}
3185
a1520318 3186static void cpt_verify_modeset(struct drm_device *dev, int pipe)
d4270e57
JB		 3187{
3188 struct drm_i915_private *dev_priv = dev->dev_private;
23670b32 3189 int dslreg = PIPEDSL(pipe);
d4270e57
JB		 3190 u32 temp;
3191
3192 temp = I915_READ(dslreg);
3193 udelay(500);
3194 if (wait_for(I915_READ(dslreg) != temp, 5)) {
d4270e57 3195 if (wait_for(I915_READ(dslreg) != temp, 5))
84f44ce7 3196 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe));
d4270e57
JB		 3197 }
3198}
3199
b074cec8
JB		 3200static void ironlake_pfit_enable(struct intel_crtc *crtc)
3201{
3202 struct drm_device *dev = crtc->base.dev;
3203 struct drm_i915_private *dev_priv = dev->dev_private;
3204 int pipe = crtc->pipe;
3205
fd4daa9c 3206 if (crtc->config.pch_pfit.enabled) {
b074cec8
JB		 3207 /* Force use of hard-coded filter coefficients
3208 * as some pre-programmed values are broken,
3209 * e.g. x201.
3210 */
3211 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
3212 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
3213 PF_PIPE_SEL_IVB(pipe));
3214 else
3215 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
3216 I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos);
3217 I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size);
d4270e57
JB		 3218 }
3219}
3220
bb53d4ae
VS		 3221static void intel_enable_planes(struct drm_crtc *crtc)
3222{
3223 struct drm_device *dev = crtc->dev;
3224 enum pipe pipe = to_intel_crtc(crtc)->pipe;
3225 struct intel_plane *intel_plane;
3226
3227 list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head)
3228 if (intel_plane->pipe == pipe)
3229 intel_plane_restore(&intel_plane->base);
3230}
3231
3232static void intel_disable_planes(struct drm_crtc *crtc)
3233{
3234 struct drm_device *dev = crtc->dev;
3235 enum pipe pipe = to_intel_crtc(crtc)->pipe;
3236 struct intel_plane *intel_plane;
3237
3238 list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head)
3239 if (intel_plane->pipe == pipe)
3240 intel_plane_disable(&intel_plane->base);
3241}
3242
f67a559d
JB		 3243static void ironlake_crtc_enable(struct drm_crtc *crtc)
3244{
3245 struct drm_device *dev = crtc->dev;
3246 struct drm_i915_private *dev_priv = dev->dev_private;
3247 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3248 struct intel_encoder *encoder;
f67a559d
JB		 3249 int pipe = intel_crtc->pipe;
3250 int plane = intel_crtc->plane;
f67a559d 3251
08a48469
DV		 3252 WARN_ON(!crtc->enabled);
3253
f67a559d
JB		 3254 if (intel_crtc->active)
3255 return;
3256
3257 intel_crtc->active = true;
8664281b
PZ		 3258
3259 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3260 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3261
f67a559d
JB		 3262 intel_update_watermarks(dev);
3263
f6736a1a 3264 for_each_encoder_on_crtc(dev, crtc, encoder)
952735ee
DV		 3265 if (encoder->pre_enable)
3266 encoder->pre_enable(encoder);
f67a559d 3267
5bfe2ac0 3268 if (intel_crtc->config.has_pch_encoder) {
fff367c7
DV		 3269 /* Note: FDI PLL enabling _must_ be done before we enable the
3270 * cpu pipes, hence this is separate from all the other fdi/pch
3271 * enabling. */
88cefb6c 3272 ironlake_fdi_pll_enable(intel_crtc);
46b6f814
DV		 3273 } else {
3274 assert_fdi_tx_disabled(dev_priv, pipe);
3275 assert_fdi_rx_disabled(dev_priv, pipe);
3276 }
f67a559d 3277
b074cec8 3278 ironlake_pfit_enable(intel_crtc);
f67a559d 3279
9c54c0dd
JB		 3280 /*
3281 * On ILK+ LUT must be loaded before the pipe is running but with
3282 * clocks enabled
3283 */
3284 intel_crtc_load_lut(crtc);
3285
5bfe2ac0
DV		 3286 intel_enable_pipe(dev_priv, pipe,
3287 intel_crtc->config.has_pch_encoder);
f67a559d 3288 intel_enable_plane(dev_priv, plane, pipe);
bb53d4ae 3289 intel_enable_planes(crtc);
5c38d48c 3290 intel_crtc_update_cursor(crtc, true);
f67a559d 3291
5bfe2ac0 3292 if (intel_crtc->config.has_pch_encoder)
f67a559d 3293 ironlake_pch_enable(crtc);
c98e9dcf 3294
d1ebd816 3295 mutex_lock(&dev->struct_mutex);
bed4a673 3296 intel_update_fbc(dev);
d1ebd816
BW		 3297 mutex_unlock(&dev->struct_mutex);
3298
fa5c73b1
DV		 3299 for_each_encoder_on_crtc(dev, crtc, encoder)
3300 encoder->enable(encoder);
61b77ddd
DV		 3301
3302 if (HAS_PCH_CPT(dev))
a1520318 3303 cpt_verify_modeset(dev, intel_crtc->pipe);
6ce94100
DV		 3304
3305 /*
3306 * There seems to be a race in PCH platform hw (at least on some
3307 * outputs) where an enabled pipe still completes any pageflip right
3308 * away (as if the pipe is off) instead of waiting for vblank. As soon
3309 * as the first vblank happend, everything works as expected. Hence just
3310 * wait for one vblank before returning to avoid strange things
3311 * happening.
3312 */
3313 intel_wait_for_vblank(dev, intel_crtc->pipe);
6be4a607
JB		 3314}
3315
42db64ef
PZ		 3316/* IPS only exists on ULT machines and is tied to pipe A. */
3317static bool hsw_crtc_supports_ips(struct intel_crtc *crtc)
3318{
f5adf94e 3319 return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A;
42db64ef
PZ		 3320}
3321
3322static void hsw_enable_ips(struct intel_crtc *crtc)
3323{
3324 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
3325
3326 if (!crtc->config.ips_enabled)
3327 return;
3328
3329 /* We can only enable IPS after we enable a plane and wait for a vblank.
3330 * We guarantee that the plane is enabled by calling intel_enable_ips
3331 * only after intel_enable_plane. And intel_enable_plane already waits
3332 * for a vblank, so all we need to do here is to enable the IPS bit. */
3333 assert_plane_enabled(dev_priv, crtc->plane);
3334 I915_WRITE(IPS_CTL, IPS_ENABLE);
3335}
3336
3337static void hsw_disable_ips(struct intel_crtc *crtc)
3338{
3339 struct drm_device *dev = crtc->base.dev;
3340 struct drm_i915_private *dev_priv = dev->dev_private;
3341
3342 if (!crtc->config.ips_enabled)
3343 return;
3344
3345 assert_plane_enabled(dev_priv, crtc->plane);
3346 I915_WRITE(IPS_CTL, 0);
3347
3348 /* We need to wait for a vblank before we can disable the plane. */
3349 intel_wait_for_vblank(dev, crtc->pipe);
3350}
3351
4f771f10
PZ		 3352static void haswell_crtc_enable(struct drm_crtc *crtc)
3353{
3354 struct drm_device *dev = crtc->dev;
3355 struct drm_i915_private *dev_priv = dev->dev_private;
3356 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3357 struct intel_encoder *encoder;
3358 int pipe = intel_crtc->pipe;
3359 int plane = intel_crtc->plane;
4f771f10
PZ		 3360
3361 WARN_ON(!crtc->enabled);
3362
3363 if (intel_crtc->active)
3364 return;
3365
3366 intel_crtc->active = true;
8664281b
PZ		 3367
3368 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3369 if (intel_crtc->config.has_pch_encoder)
3370 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3371
4f771f10
PZ		 3372 intel_update_watermarks(dev);
3373
5bfe2ac0 3374 if (intel_crtc->config.has_pch_encoder)
04945641 3375 dev_priv->display.fdi_link_train(crtc);
4f771f10
PZ		 3376
3377 for_each_encoder_on_crtc(dev, crtc, encoder)
3378 if (encoder->pre_enable)
3379 encoder->pre_enable(encoder);
3380
1f544388 3381 intel_ddi_enable_pipe_clock(intel_crtc);
4f771f10 3382
b074cec8 3383 ironlake_pfit_enable(intel_crtc);
4f771f10
PZ		 3384
3385 /*
3386 * On ILK+ LUT must be loaded before the pipe is running but with
3387 * clocks enabled
3388 */
3389 intel_crtc_load_lut(crtc);
3390
1f544388 3391 intel_ddi_set_pipe_settings(crtc);
8228c251 3392 intel_ddi_enable_transcoder_func(crtc);
4f771f10 3393
5bfe2ac0
DV		 3394 intel_enable_pipe(dev_priv, pipe,
3395 intel_crtc->config.has_pch_encoder);
4f771f10 3396 intel_enable_plane(dev_priv, plane, pipe);
bb53d4ae 3397 intel_enable_planes(crtc);
5c38d48c 3398 intel_crtc_update_cursor(crtc, true);
4f771f10 3399
42db64ef
PZ		 3400 hsw_enable_ips(intel_crtc);
3401
5bfe2ac0 3402 if (intel_crtc->config.has_pch_encoder)
1507e5bd 3403 lpt_pch_enable(crtc);
4f771f10
PZ		 3404
3405 mutex_lock(&dev->struct_mutex);
3406 intel_update_fbc(dev);
3407 mutex_unlock(&dev->struct_mutex);
3408
4f771f10
PZ		 3409 for_each_encoder_on_crtc(dev, crtc, encoder)
3410 encoder->enable(encoder);
3411
4f771f10
PZ		 3412 /*
3413 * There seems to be a race in PCH platform hw (at least on some
3414 * outputs) where an enabled pipe still completes any pageflip right
3415 * away (as if the pipe is off) instead of waiting for vblank. As soon
3416 * as the first vblank happend, everything works as expected. Hence just
3417 * wait for one vblank before returning to avoid strange things
3418 * happening.
3419 */
3420 intel_wait_for_vblank(dev, intel_crtc->pipe);
3421}
3422
3f8dce3a
DV		 3423static void ironlake_pfit_disable(struct intel_crtc *crtc)
3424{
3425 struct drm_device *dev = crtc->base.dev;
3426 struct drm_i915_private *dev_priv = dev->dev_private;
3427 int pipe = crtc->pipe;
3428
3429 /* To avoid upsetting the power well on haswell only disable the pfit if
3430 * it's in use. The hw state code will make sure we get this right. */
fd4daa9c 3431 if (crtc->config.pch_pfit.enabled) {
3f8dce3a
DV		 3432 I915_WRITE(PF_CTL(pipe), 0);
3433 I915_WRITE(PF_WIN_POS(pipe), 0);
3434 I915_WRITE(PF_WIN_SZ(pipe), 0);
3435 }
3436}
3437
6be4a607
JB		 3438static void ironlake_crtc_disable(struct drm_crtc *crtc)
3439{
3440 struct drm_device *dev = crtc->dev;
3441 struct drm_i915_private *dev_priv = dev->dev_private;
3442 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3443 struct intel_encoder *encoder;
6be4a607
JB		 3444 int pipe = intel_crtc->pipe;
3445 int plane = intel_crtc->plane;
5eddb70b 3446 u32 reg, temp;
b52eb4dc 3447
ef9c3aee 3448
f7abfe8b
CW		 3449 if (!intel_crtc->active)
3450 return;
3451
ea9d758d
DV		 3452 for_each_encoder_on_crtc(dev, crtc, encoder)
3453 encoder->disable(encoder);
3454
e6c3a2a6 3455 intel_crtc_wait_for_pending_flips(crtc);
6be4a607 3456 drm_vblank_off(dev, pipe);
913d8d11 3457
5c3fe8b0 3458 if (dev_priv->fbc.plane == plane)
973d04f9 3459 intel_disable_fbc(dev);
2c07245f 3460
0d5b8c61 3461 intel_crtc_update_cursor(crtc, false);
bb53d4ae 3462 intel_disable_planes(crtc);
0d5b8c61
VS		 3463 intel_disable_plane(dev_priv, plane, pipe);
3464
d925c59a
DV		 3465 if (intel_crtc->config.has_pch_encoder)
3466 intel_set_pch_fifo_underrun_reporting(dev, pipe, false);
3467
b24e7179 3468 intel_disable_pipe(dev_priv, pipe);
32f9d658 3469
3f8dce3a 3470 ironlake_pfit_disable(intel_crtc);
2c07245f 3471
bf49ec8c
DV		 3472 for_each_encoder_on_crtc(dev, crtc, encoder)
3473 if (encoder->post_disable)
3474 encoder->post_disable(encoder);
2c07245f 3475
d925c59a
DV		 3476 if (intel_crtc->config.has_pch_encoder) {
3477 ironlake_fdi_disable(crtc);
913d8d11 3478
d925c59a
DV		 3479 ironlake_disable_pch_transcoder(dev_priv, pipe);
3480 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
6be4a607 3481
d925c59a
DV		 3482 if (HAS_PCH_CPT(dev)) {
3483 /* disable TRANS_DP_CTL */
3484 reg = TRANS_DP_CTL(pipe);
3485 temp = I915_READ(reg);
3486 temp &= ~(TRANS_DP_OUTPUT_ENABLE |
3487 TRANS_DP_PORT_SEL_MASK);
3488 temp |= TRANS_DP_PORT_SEL_NONE;
3489 I915_WRITE(reg, temp);
3490
3491 /* disable DPLL_SEL */
3492 temp = I915_READ(PCH_DPLL_SEL);
11887397 3493 temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe));
d925c59a 3494 I915_WRITE(PCH_DPLL_SEL, temp);
9db4a9c7 3495 }
e3421a18 3496
d925c59a 3497 /* disable PCH DPLL */
e72f9fbf 3498 intel_disable_shared_dpll(intel_crtc);
8db9d77b 3499
d925c59a
DV		 3500 ironlake_fdi_pll_disable(intel_crtc);
3501 }
6b383a7f 3502
f7abfe8b 3503 intel_crtc->active = false;
6b383a7f 3504 intel_update_watermarks(dev);
d1ebd816
BW		 3505
3506 mutex_lock(&dev->struct_mutex);
6b383a7f 3507 intel_update_fbc(dev);
d1ebd816 3508 mutex_unlock(&dev->struct_mutex);
6be4a607 3509}
1b3c7a47 3510
4f771f10 3511static void haswell_crtc_disable(struct drm_crtc *crtc)
ee7b9f93 3512{
4f771f10
PZ		 3513 struct drm_device *dev = crtc->dev;
3514 struct drm_i915_private *dev_priv = dev->dev_private;
ee7b9f93 3515 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4f771f10
PZ		 3516 struct intel_encoder *encoder;
3517 int pipe = intel_crtc->pipe;
3518 int plane = intel_crtc->plane;
3b117c8f 3519 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
ee7b9f93 3520
4f771f10
PZ		 3521 if (!intel_crtc->active)
3522 return;
3523
3524 for_each_encoder_on_crtc(dev, crtc, encoder)
3525 encoder->disable(encoder);
3526
3527 intel_crtc_wait_for_pending_flips(crtc);
3528 drm_vblank_off(dev, pipe);
4f771f10 3529
891348b2 3530 /* FBC must be disabled before disabling the plane on HSW. */
5c3fe8b0 3531 if (dev_priv->fbc.plane == plane)
4f771f10
PZ		 3532 intel_disable_fbc(dev);
3533
42db64ef
PZ		 3534 hsw_disable_ips(intel_crtc);
3535
0d5b8c61 3536 intel_crtc_update_cursor(crtc, false);
bb53d4ae 3537 intel_disable_planes(crtc);
891348b2
RV		 3538 intel_disable_plane(dev_priv, plane, pipe);
3539
8664281b
PZ		 3540 if (intel_crtc->config.has_pch_encoder)
3541 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false);
4f771f10
PZ		 3542 intel_disable_pipe(dev_priv, pipe);
3543
ad80a810 3544 intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
4f771f10 3545
3f8dce3a 3546 ironlake_pfit_disable(intel_crtc);
4f771f10 3547
1f544388 3548 intel_ddi_disable_pipe_clock(intel_crtc);
4f771f10
PZ		 3549
3550 for_each_encoder_on_crtc(dev, crtc, encoder)
3551 if (encoder->post_disable)
3552 encoder->post_disable(encoder);
3553
88adfff1 3554 if (intel_crtc->config.has_pch_encoder) {
ab4d966c 3555 lpt_disable_pch_transcoder(dev_priv);
8664281b 3556 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
1ad960f2 3557 intel_ddi_fdi_disable(crtc);
83616634 3558 }
4f771f10
PZ		 3559
3560 intel_crtc->active = false;
3561 intel_update_watermarks(dev);
3562
3563 mutex_lock(&dev->struct_mutex);
3564 intel_update_fbc(dev);
3565 mutex_unlock(&dev->struct_mutex);
3566}
3567
ee7b9f93
JB		 3568static void ironlake_crtc_off(struct drm_crtc *crtc)
3569{
3570 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
e72f9fbf 3571 intel_put_shared_dpll(intel_crtc);
ee7b9f93
JB		 3572}
3573
6441ab5f
PZ		 3574static void haswell_crtc_off(struct drm_crtc *crtc)
3575{
3576 intel_ddi_put_crtc_pll(crtc);
3577}
3578
02e792fb
DV		 3579static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
3580{
02e792fb 3581 if (!enable && intel_crtc->overlay) {
23f09ce3 3582 struct drm_device *dev = intel_crtc->base.dev;
ce453d81 3583 struct drm_i915_private *dev_priv = dev->dev_private;
03f77ea5 3584
23f09ce3 3585 mutex_lock(&dev->struct_mutex);
ce453d81
CW		 3586 dev_priv->mm.interruptible = false;
3587 (void) intel_overlay_switch_off(intel_crtc->overlay);
3588 dev_priv->mm.interruptible = true;
23f09ce3 3589 mutex_unlock(&dev->struct_mutex);
02e792fb 3590 }
02e792fb 3591
5dcdbcb0
CW		 3592 /* Let userspace switch the overlay on again. In most cases userspace
3593 * has to recompute where to put it anyway.
3594 */
02e792fb
DV		 3595}
3596
61bc95c1
EE		 3597/**
3598 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
3599 * cursor plane briefly if not already running after enabling the display
3600 * plane.
3601 * This workaround avoids occasional blank screens when self refresh is
3602 * enabled.
3603 */
3604static void
3605g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe)
3606{
3607 u32 cntl = I915_READ(CURCNTR(pipe));
3608
3609 if ((cntl & CURSOR_MODE) == 0) {
3610 u32 fw_bcl_self = I915_READ(FW_BLC_SELF);
3611
3612 I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN);
3613 I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX);
3614 intel_wait_for_vblank(dev_priv->dev, pipe);
3615 I915_WRITE(CURCNTR(pipe), cntl);
3616 I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe)));
3617 I915_WRITE(FW_BLC_SELF, fw_bcl_self);
3618 }
3619}
3620
2dd24552
JB		 3621static void i9xx_pfit_enable(struct intel_crtc *crtc)
3622{
3623 struct drm_device *dev = crtc->base.dev;
3624 struct drm_i915_private *dev_priv = dev->dev_private;
3625 struct intel_crtc_config *pipe_config = &crtc->config;
3626
328d8e82 3627 if (!crtc->config.gmch_pfit.control)
2dd24552
JB		 3628 return;
3629
2dd24552 3630 /*
c0b03411
DV		 3631 * The panel fitter should only be adjusted whilst the pipe is disabled,
3632 * according to register description and PRM.
2dd24552 3633 */
c0b03411
DV		 3634 WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
3635 assert_pipe_disabled(dev_priv, crtc->pipe);
2dd24552 3636
b074cec8
JB		 3637 I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios);
3638 I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control);
5a80c45c
DV		 3639
3640 /* Border color in case we don't scale up to the full screen. Black by
3641 * default, change to something else for debugging. */
3642 I915_WRITE(BCLRPAT(crtc->pipe), 0);
2dd24552
JB		 3643}
3644
89b667f8
JB		 3645static void valleyview_crtc_enable(struct drm_crtc *crtc)
3646{
3647 struct drm_device *dev = crtc->dev;
3648 struct drm_i915_private *dev_priv = dev->dev_private;
3649 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3650 struct intel_encoder *encoder;
3651 int pipe = intel_crtc->pipe;
3652 int plane = intel_crtc->plane;
3653
3654 WARN_ON(!crtc->enabled);
3655
3656 if (intel_crtc->active)
3657 return;
3658
3659 intel_crtc->active = true;
3660 intel_update_watermarks(dev);
3661
89b667f8
JB		 3662 for_each_encoder_on_crtc(dev, crtc, encoder)
3663 if (encoder->pre_pll_enable)
3664 encoder->pre_pll_enable(encoder);
3665
426115cf 3666 vlv_enable_pll(intel_crtc);
89b667f8
JB		 3667
3668 for_each_encoder_on_crtc(dev, crtc, encoder)
3669 if (encoder->pre_enable)
3670 encoder->pre_enable(encoder);
3671
2dd24552
JB		 3672 i9xx_pfit_enable(intel_crtc);
3673
63cbb074
VS		 3674 intel_crtc_load_lut(crtc);
3675
89b667f8
JB		 3676 intel_enable_pipe(dev_priv, pipe, false);
3677 intel_enable_plane(dev_priv, plane, pipe);
bb53d4ae 3678 intel_enable_planes(crtc);
5c38d48c 3679 intel_crtc_update_cursor(crtc, true);
89b667f8 3680
89b667f8 3681 intel_update_fbc(dev);
5004945f
JN		 3682
3683 for_each_encoder_on_crtc(dev, crtc, encoder)
3684 encoder->enable(encoder);
89b667f8
JB		 3685}
3686
0b8765c6 3687static void i9xx_crtc_enable(struct drm_crtc *crtc)
79e53945
JB		 3688{
3689 struct drm_device *dev = crtc->dev;
79e53945
JB		 3690 struct drm_i915_private *dev_priv = dev->dev_private;
3691 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3692 struct intel_encoder *encoder;
79e53945 3693 int pipe = intel_crtc->pipe;
80824003 3694 int plane = intel_crtc->plane;
79e53945 3695
08a48469
DV		 3696 WARN_ON(!crtc->enabled);
3697
f7abfe8b
CW		 3698 if (intel_crtc->active)
3699 return;
3700
3701 intel_crtc->active = true;
6b383a7f
CW		 3702 intel_update_watermarks(dev);
3703
9d6d9f19
MK		 3704 for_each_encoder_on_crtc(dev, crtc, encoder)
3705 if (encoder->pre_enable)
3706 encoder->pre_enable(encoder);
3707
f6736a1a
DV		 3708 i9xx_enable_pll(intel_crtc);
3709
2dd24552
JB		 3710 i9xx_pfit_enable(intel_crtc);
3711
63cbb074
VS		 3712 intel_crtc_load_lut(crtc);
3713
040484af 3714 intel_enable_pipe(dev_priv, pipe, false);
b24e7179 3715 intel_enable_plane(dev_priv, plane, pipe);
bb53d4ae 3716 intel_enable_planes(crtc);
22e407d7 3717 /* The fixup needs to happen before cursor is enabled */
61bc95c1
EE		 3718 if (IS_G4X(dev))
3719 g4x_fixup_plane(dev_priv, pipe);
22e407d7 3720 intel_crtc_update_cursor(crtc, true);
79e53945 3721
0b8765c6
JB		 3722 /* Give the overlay scaler a chance to enable if it's on this pipe */
3723 intel_crtc_dpms_overlay(intel_crtc, true);
ef9c3aee 3724
f440eb13 3725 intel_update_fbc(dev);
ef9c3aee 3726
fa5c73b1
DV		 3727 for_each_encoder_on_crtc(dev, crtc, encoder)
3728 encoder->enable(encoder);
0b8765c6 3729}
79e53945 3730
87476d63
DV		 3731static void i9xx_pfit_disable(struct intel_crtc *crtc)
3732{
3733 struct drm_device *dev = crtc->base.dev;
3734 struct drm_i915_private *dev_priv = dev->dev_private;
87476d63 3735
328d8e82
DV		 3736 if (!crtc->config.gmch_pfit.control)
3737 return;
87476d63 3738
328d8e82 3739 assert_pipe_disabled(dev_priv, crtc->pipe);
87476d63 3740
328d8e82
DV		 3741 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
3742 I915_READ(PFIT_CONTROL));
3743 I915_WRITE(PFIT_CONTROL, 0);
87476d63
DV		 3744}
3745
0b8765c6
JB		 3746static void i9xx_crtc_disable(struct drm_crtc *crtc)
3747{
3748 struct drm_device *dev = crtc->dev;
3749 struct drm_i915_private *dev_priv = dev->dev_private;
3750 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3751 struct intel_encoder *encoder;
0b8765c6
JB		 3752 int pipe = intel_crtc->pipe;
3753 int plane = intel_crtc->plane;
ef9c3aee 3754
f7abfe8b
CW		 3755 if (!intel_crtc->active)
3756 return;
3757
ea9d758d
DV		 3758 for_each_encoder_on_crtc(dev, crtc, encoder)
3759 encoder->disable(encoder);
3760
0b8765c6 3761 /* Give the overlay scaler a chance to disable if it's on this pipe */
e6c3a2a6
CW		 3762 intel_crtc_wait_for_pending_flips(crtc);
3763 drm_vblank_off(dev, pipe);
0b8765c6 3764
5c3fe8b0 3765 if (dev_priv->fbc.plane == plane)
973d04f9 3766 intel_disable_fbc(dev);
79e53945 3767
0d5b8c61
VS		 3768 intel_crtc_dpms_overlay(intel_crtc, false);
3769 intel_crtc_update_cursor(crtc, false);
bb53d4ae 3770 intel_disable_planes(crtc);
b24e7179 3771 intel_disable_plane(dev_priv, plane, pipe);
0d5b8c61 3772
b24e7179 3773 intel_disable_pipe(dev_priv, pipe);
24a1f16d 3774
87476d63 3775 i9xx_pfit_disable(intel_crtc);
24a1f16d 3776
89b667f8
JB		 3777 for_each_encoder_on_crtc(dev, crtc, encoder)
3778 if (encoder->post_disable)
3779 encoder->post_disable(encoder);
3780
50b44a44 3781 i9xx_disable_pll(dev_priv, pipe);
0b8765c6 3782
f7abfe8b 3783 intel_crtc->active = false;
6b383a7f
CW		 3784 intel_update_fbc(dev);
3785 intel_update_watermarks(dev);
0b8765c6
JB		 3786}
3787
ee7b9f93
JB		 3788static void i9xx_crtc_off(struct drm_crtc *crtc)
3789{
3790}
3791
976f8a20
DV		 3792static void intel_crtc_update_sarea(struct drm_crtc *crtc,
3793 bool enabled)
2c07245f
ZW		 3794{
3795 struct drm_device *dev = crtc->dev;
3796 struct drm_i915_master_private *master_priv;
3797 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3798 int pipe = intel_crtc->pipe;
79e53945
JB		 3799
3800 if (!dev->primary->master)
3801 return;
3802
3803 master_priv = dev->primary->master->driver_priv;
3804 if (!master_priv->sarea_priv)
3805 return;
3806
79e53945
JB		 3807 switch (pipe) {
3808 case 0:
3809 master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
3810 master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
3811 break;
3812 case 1:
3813 master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
3814 master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
3815 break;
3816 default:
9db4a9c7 3817 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
79e53945
JB		 3818 break;
3819 }
79e53945
JB		 3820}
3821
976f8a20
DV		 3822/**
3823 * Sets the power management mode of the pipe and plane.
3824 */
3825void intel_crtc_update_dpms(struct drm_crtc *crtc)
3826{
3827 struct drm_device *dev = crtc->dev;
3828 struct drm_i915_private *dev_priv = dev->dev_private;
3829 struct intel_encoder *intel_encoder;
3830 bool enable = false;
3831
3832 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
3833 enable |= intel_encoder->connectors_active;
3834
3835 if (enable)
3836 dev_priv->display.crtc_enable(crtc);
3837 else
3838 dev_priv->display.crtc_disable(crtc);
3839
3840 intel_crtc_update_sarea(crtc, enable);
3841}
3842
cdd59983
CW		 3843static void intel_crtc_disable(struct drm_crtc *crtc)
3844{
cdd59983 3845 struct drm_device *dev = crtc->dev;
976f8a20 3846 struct drm_connector *connector;
ee7b9f93 3847 struct drm_i915_private *dev_priv = dev->dev_private;
7b9f35a6 3848 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
cdd59983 3849
976f8a20
DV		 3850 /* crtc should still be enabled when we disable it. */
3851 WARN_ON(!crtc->enabled);
3852
3853 dev_priv->display.crtc_disable(crtc);
c77bf565 3854 intel_crtc->eld_vld = false;
976f8a20 3855 intel_crtc_update_sarea(crtc, false);
ee7b9f93
JB		 3856 dev_priv->display.off(crtc);
3857
931872fc
CW		 3858 assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
3859 assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
cdd59983
CW		 3860
3861 if (crtc->fb) {
3862 mutex_lock(&dev->struct_mutex);
1690e1eb 3863 intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
cdd59983 3864 mutex_unlock(&dev->struct_mutex);
976f8a20
DV		 3865 crtc->fb = NULL;
3866 }
3867
3868 /* Update computed state. */
3869 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3870 if (!connector->encoder || !connector->encoder->crtc)
3871 continue;
3872
3873 if (connector->encoder->crtc != crtc)
3874 continue;
3875
3876 connector->dpms = DRM_MODE_DPMS_OFF;
3877 to_intel_encoder(connector->encoder)->connectors_active = false;
cdd59983
CW		 3878 }
3879}
3880
ea5b213a 3881void intel_encoder_destroy(struct drm_encoder *encoder)
7e7d76c3 3882{
4ef69c7a 3883 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
ea5b213a 3884
ea5b213a
CW		 3885 drm_encoder_cleanup(encoder);
3886 kfree(intel_encoder);
7e7d76c3
JB		 3887}
3888
9237329d 3889/* Simple dpms helper for encoders with just one connector, no cloning and only
5ab432ef
DV		 3890 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
3891 * state of the entire output pipe. */
9237329d 3892static void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
7e7d76c3 3893{
5ab432ef
DV		 3894 if (mode == DRM_MODE_DPMS_ON) {
3895 encoder->connectors_active = true;
3896
b2cabb0e 3897 intel_crtc_update_dpms(encoder->base.crtc);
5ab432ef
DV		 3898 } else {
3899 encoder->connectors_active = false;
3900
b2cabb0e 3901 intel_crtc_update_dpms(encoder->base.crtc);
5ab432ef 3902 }
79e53945
JB		 3903}
3904
0a91ca29
DV		 3905/* Cross check the actual hw state with our own modeset state tracking (and it's
3906 * internal consistency). */
b980514c 3907static void intel_connector_check_state(struct intel_connector *connector)
79e53945 3908{
0a91ca29
DV		 3909 if (connector->get_hw_state(connector)) {
3910 struct intel_encoder *encoder = connector->encoder;
3911 struct drm_crtc *crtc;
3912 bool encoder_enabled;
3913 enum pipe pipe;
3914
3915 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
3916 connector->base.base.id,
3917 drm_get_connector_name(&connector->base));
3918
3919 WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
3920 "wrong connector dpms state\n");
3921 WARN(connector->base.encoder != &encoder->base,
3922 "active connector not linked to encoder\n");
3923 WARN(!encoder->connectors_active,
3924 "encoder->connectors_active not set\n");
3925
3926 encoder_enabled = encoder->get_hw_state(encoder, &pipe);
3927 WARN(!encoder_enabled, "encoder not enabled\n");
3928 if (WARN_ON(!encoder->base.crtc))
3929 return;
3930
3931 crtc = encoder->base.crtc;
3932
3933 WARN(!crtc->enabled, "crtc not enabled\n");
3934 WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
3935 WARN(pipe != to_intel_crtc(crtc)->pipe,
3936 "encoder active on the wrong pipe\n");
3937 }
79e53945
JB		 3938}
3939
5ab432ef
DV		 3940/* Even simpler default implementation, if there's really no special case to
3941 * consider. */
3942void intel_connector_dpms(struct drm_connector *connector, int mode)
79e53945 3943{
5ab432ef 3944 struct intel_encoder *encoder = intel_attached_encoder(connector);
d4270e57 3945
5ab432ef
DV		 3946 /* All the simple cases only support two dpms states. */
3947 if (mode != DRM_MODE_DPMS_ON)
3948 mode = DRM_MODE_DPMS_OFF;
d4270e57 3949
5ab432ef
DV		 3950 if (mode == connector->dpms)
3951 return;
3952
3953 connector->dpms = mode;
3954
3955 /* Only need to change hw state when actually enabled */
3956 if (encoder->base.crtc)
3957 intel_encoder_dpms(encoder, mode);
3958 else
8af6cf88 3959 WARN_ON(encoder->connectors_active != false);
0a91ca29 3960
b980514c 3961 intel_modeset_check_state(connector->dev);
79e53945
JB		 3962}
3963
f0947c37
DV		 3964/* Simple connector->get_hw_state implementation for encoders that support only
3965 * one connector and no cloning and hence the encoder state determines the state
3966 * of the connector. */
3967bool intel_connector_get_hw_state(struct intel_connector *connector)
ea5b213a 3968{
24929352 3969 enum pipe pipe = 0;
f0947c37 3970 struct intel_encoder *encoder = connector->encoder;
ea5b213a 3971
f0947c37 3972 return encoder->get_hw_state(encoder, &pipe);
ea5b213a
CW		 3973}
3974
1857e1da
DV		 3975static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
3976 struct intel_crtc_config *pipe_config)
3977{
3978 struct drm_i915_private *dev_priv = dev->dev_private;
3979 struct intel_crtc *pipe_B_crtc =
3980 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
3981
3982 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
3983 pipe_name(pipe), pipe_config->fdi_lanes);
3984 if (pipe_config->fdi_lanes > 4) {
3985 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
3986 pipe_name(pipe), pipe_config->fdi_lanes);
3987 return false;
3988 }
3989
3990 if (IS_HASWELL(dev)) {
3991 if (pipe_config->fdi_lanes > 2) {
3992 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
3993 pipe_config->fdi_lanes);
3994 return false;
3995 } else {
3996 return true;
3997 }
3998 }
3999
4000 if (INTEL_INFO(dev)->num_pipes == 2)
4001 return true;
4002
4003 /* Ivybridge 3 pipe is really complicated */
4004 switch (pipe) {
4005 case PIPE_A:
4006 return true;
4007 case PIPE_B:
4008 if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled &&
4009 pipe_config->fdi_lanes > 2) {
4010 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4011 pipe_name(pipe), pipe_config->fdi_lanes);
4012 return false;
4013 }
4014 return true;
4015 case PIPE_C:
1e833f40 4016 if (!pipe_has_enabled_pch(pipe_B_crtc) ||
1857e1da
DV		 4017 pipe_B_crtc->config.fdi_lanes <= 2) {
4018 if (pipe_config->fdi_lanes > 2) {
4019 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4020 pipe_name(pipe), pipe_config->fdi_lanes);
4021 return false;
4022 }
4023 } else {
4024 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
4025 return false;
4026 }
4027 return true;
4028 default:
4029 BUG();
4030 }
4031}
4032
e29c22c0
DV		 4033#define RETRY 1
4034static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc,
4035 struct intel_crtc_config *pipe_config)
877d48d5 4036{
1857e1da 4037 struct drm_device *dev = intel_crtc->base.dev;
877d48d5 4038 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
ff9a6750 4039 int lane, link_bw, fdi_dotclock;
e29c22c0 4040 bool setup_ok, needs_recompute = false;
877d48d5 4041
e29c22c0 4042retry:
877d48d5
DV		 4043 /* FDI is a binary signal running at ~2.7GHz, encoding
4044 * each output octet as 10 bits. The actual frequency
4045 * is stored as a divider into a 100MHz clock, and the
4046 * mode pixel clock is stored in units of 1KHz.
4047 * Hence the bw of each lane in terms of the mode signal
4048 * is:
4049 */
4050 link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
4051
ff9a6750 4052 fdi_dotclock = adjusted_mode->clock;
ef1b460d 4053 fdi_dotclock /= pipe_config->pixel_multiplier;
877d48d5 4054
2bd89a07 4055 lane = ironlake_get_lanes_required(fdi_dotclock, link_bw,
877d48d5
DV		 4056 pipe_config->pipe_bpp);
4057
4058 pipe_config->fdi_lanes = lane;
4059
2bd89a07 4060 intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock,
877d48d5 4061 link_bw, &pipe_config->fdi_m_n);
1857e1da 4062
e29c22c0
DV		 4063 setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev,
4064 intel_crtc->pipe, pipe_config);
4065 if (!setup_ok && pipe_config->pipe_bpp > 6*3) {
4066 pipe_config->pipe_bpp -= 2*3;
4067 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
4068 pipe_config->pipe_bpp);
4069 needs_recompute = true;
4070 pipe_config->bw_constrained = true;
4071
4072 goto retry;
4073 }
4074
4075 if (needs_recompute)
4076 return RETRY;
4077
4078 return setup_ok ? 0 : -EINVAL;
877d48d5
DV		 4079}
4080
42db64ef
PZ		 4081static void hsw_compute_ips_config(struct intel_crtc *crtc,
4082 struct intel_crtc_config *pipe_config)
4083{
3c4ca58c
PZ		 4084 pipe_config->ips_enabled = i915_enable_ips &&
4085 hsw_crtc_supports_ips(crtc) &&
b6dfdc9b 4086 pipe_config->pipe_bpp <= 24;
42db64ef
PZ		 4087}
4088
a43f6e0f 4089static int intel_crtc_compute_config(struct intel_crtc *crtc,
e29c22c0 4090 struct intel_crtc_config *pipe_config)
79e53945 4091{
a43f6e0f 4092 struct drm_device *dev = crtc->base.dev;
b8cecdf5 4093 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
89749350 4094
bad720ff 4095 if (HAS_PCH_SPLIT(dev)) {
2c07245f 4096 /* FDI link clock is fixed at 2.7G */
b8cecdf5
DV		 4097 if (pipe_config->requested_mode.clock * 3
4098 > IRONLAKE_FDI_FREQ * 4)
e29c22c0 4099 return -EINVAL;
2c07245f 4100 }
89749350 4101
8693a824
DL		 4102 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
4103 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
44f46b42
CW		 4104 */
4105 if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) &&
4106 adjusted_mode->hsync_start == adjusted_mode->hdisplay)
e29c22c0 4107 return -EINVAL;
44f46b42 4108
bd080ee5 4109 if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) {
5d2d38dd 4110 pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */
bd080ee5 4111 } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) {
5d2d38dd
DV		 4112 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
4113 * for lvds. */
4114 pipe_config->pipe_bpp = 8*3;
4115 }
4116
f5adf94e 4117 if (HAS_IPS(dev))
a43f6e0f
DV		 4118 hsw_compute_ips_config(crtc, pipe_config);
4119
4120 /* XXX: PCH clock sharing is done in ->mode_set, so make sure the old
4121 * clock survives for now. */
4122 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
4123 pipe_config->shared_dpll = crtc->config.shared_dpll;
42db64ef 4124
877d48d5 4125 if (pipe_config->has_pch_encoder)
a43f6e0f 4126 return ironlake_fdi_compute_config(crtc, pipe_config);
877d48d5 4127
e29c22c0 4128 return 0;
79e53945
JB		 4129}
4130
25eb05fc
JB		 4131static int valleyview_get_display_clock_speed(struct drm_device *dev)
4132{
4133 return 400000; /* FIXME */
4134}
4135
e70236a8
JB		 4136static int i945_get_display_clock_speed(struct drm_device *dev)
4137{
4138 return 400000;
4139}
79e53945 4140
e70236a8 4141static int i915_get_display_clock_speed(struct drm_device *dev)
79e53945 4142{
e70236a8
JB		 4143 return 333000;
4144}
79e53945 4145
e70236a8
JB		 4146static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
4147{
4148 return 200000;
4149}
79e53945 4150
257a7ffc
DV		 4151static int pnv_get_display_clock_speed(struct drm_device *dev)
4152{
4153 u16 gcfgc = 0;
4154
4155 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4156
4157 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4158 case GC_DISPLAY_CLOCK_267_MHZ_PNV:
4159 return 267000;
4160 case GC_DISPLAY_CLOCK_333_MHZ_PNV:
4161 return 333000;
4162 case GC_DISPLAY_CLOCK_444_MHZ_PNV:
4163 return 444000;
4164 case GC_DISPLAY_CLOCK_200_MHZ_PNV:
4165 return 200000;
4166 default:
4167 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc);
4168 case GC_DISPLAY_CLOCK_133_MHZ_PNV:
4169 return 133000;
4170 case GC_DISPLAY_CLOCK_167_MHZ_PNV:
4171 return 167000;
4172 }
4173}
4174
e70236a8
JB		 4175static int i915gm_get_display_clock_speed(struct drm_device *dev)
4176{
4177 u16 gcfgc = 0;
79e53945 4178
e70236a8
JB		 4179 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4180
4181 if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
4182 return 133000;
4183 else {
4184 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4185 case GC_DISPLAY_CLOCK_333_MHZ:
4186 return 333000;
4187 default:
4188 case GC_DISPLAY_CLOCK_190_200_MHZ:
4189 return 190000;
79e53945 4190 }
e70236a8
JB		 4191 }
4192}
4193
4194static int i865_get_display_clock_speed(struct drm_device *dev)
4195{
4196 return 266000;
4197}
4198
4199static int i855_get_display_clock_speed(struct drm_device *dev)
4200{
4201 u16 hpllcc = 0;
4202 /* Assume that the hardware is in the high speed state. This
4203 * should be the default.
4204 */
4205 switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
4206 case GC_CLOCK_133_200:
4207 case GC_CLOCK_100_200:
4208 return 200000;
4209 case GC_CLOCK_166_250:
4210 return 250000;
4211 case GC_CLOCK_100_133:
79e53945 4212 return 133000;
e70236a8 4213 }
79e53945 4214
e70236a8
JB		 4215 /* Shouldn't happen */
4216 return 0;
4217}
79e53945 4218
e70236a8
JB		 4219static int i830_get_display_clock_speed(struct drm_device *dev)
4220{
4221 return 133000;
79e53945
JB		 4222}
4223
2c07245f 4224static void
a65851af 4225intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den)
2c07245f 4226{
a65851af
VS		 4227 while (*num > DATA_LINK_M_N_MASK ||
4228 *den > DATA_LINK_M_N_MASK) {
2c07245f
ZW		 4229 *num >>= 1;
4230 *den >>= 1;
4231 }
4232}
4233
a65851af
VS		 4234static void compute_m_n(unsigned int m, unsigned int n,
4235 uint32_t *ret_m, uint32_t *ret_n)
4236{
4237 *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
4238 *ret_m = div_u64((uint64_t) m * *ret_n, n);
4239 intel_reduce_m_n_ratio(ret_m, ret_n);
4240}
4241
e69d0bc1
DV		 4242void
4243intel_link_compute_m_n(int bits_per_pixel, int nlanes,
4244 int pixel_clock, int link_clock,
4245 struct intel_link_m_n *m_n)
2c07245f 4246{
e69d0bc1 4247 m_n->tu = 64;
a65851af
VS		 4248
4249 compute_m_n(bits_per_pixel * pixel_clock,
4250 link_clock * nlanes * 8,
4251 &m_n->gmch_m, &m_n->gmch_n);
4252
4253 compute_m_n(pixel_clock, link_clock,
4254 &m_n->link_m, &m_n->link_n);
2c07245f
ZW		 4255}
4256
a7615030
CW		 4257static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
4258{
72bbe58c
KP		 4259 if (i915_panel_use_ssc >= 0)
4260 return i915_panel_use_ssc != 0;
41aa3448 4261 return dev_priv->vbt.lvds_use_ssc
435793df 4262 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
a7615030
CW		 4263}
4264
a0c4da24
JB		 4265static int vlv_get_refclk(struct drm_crtc *crtc)
4266{
4267 struct drm_device *dev = crtc->dev;
4268 struct drm_i915_private *dev_priv = dev->dev_private;
4269 int refclk = 27000; /* for DP & HDMI */
4270
4271 return 100000; /* only one validated so far */
4272
4273 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
4274 refclk = 96000;
4275 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
4276 if (intel_panel_use_ssc(dev_priv))
4277 refclk = 100000;
4278 else
4279 refclk = 96000;
4280 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
4281 refclk = 100000;
4282 }
4283
4284 return refclk;
4285}
4286
c65d77d8
JB		 4287static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
4288{
4289 struct drm_device *dev = crtc->dev;
4290 struct drm_i915_private *dev_priv = dev->dev_private;
4291 int refclk;
4292
a0c4da24
JB		 4293 if (IS_VALLEYVIEW(dev)) {
4294 refclk = vlv_get_refclk(crtc);
4295 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
c65d77d8 4296 intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
41aa3448 4297 refclk = dev_priv->vbt.lvds_ssc_freq * 1000;
c65d77d8
JB		 4298 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4299 refclk / 1000);
4300 } else if (!IS_GEN2(dev)) {
4301 refclk = 96000;
4302 } else {
4303 refclk = 48000;
4304 }
4305
4306 return refclk;
4307}
4308
7429e9d4 4309static uint32_t pnv_dpll_compute_fp(struct dpll *dpll)
c65d77d8 4310{
7df00d7a 4311 return (1 << dpll->n) << 16 | dpll->m2;
7429e9d4 4312}
f47709a9 4313
7429e9d4
DV		 4314static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll)
4315{
4316 return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
c65d77d8
JB		 4317}
4318
f47709a9 4319static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
a7516a05
JB		 4320 intel_clock_t *reduced_clock)
4321{
f47709a9 4322 struct drm_device *dev = crtc->base.dev;
a7516a05 4323 struct drm_i915_private *dev_priv = dev->dev_private;
f47709a9 4324 int pipe = crtc->pipe;
a7516a05
JB		 4325 u32 fp, fp2 = 0;
4326
4327 if (IS_PINEVIEW(dev)) {
7429e9d4 4328 fp = pnv_dpll_compute_fp(&crtc->config.dpll);
a7516a05 4329 if (reduced_clock)
7429e9d4 4330 fp2 = pnv_dpll_compute_fp(reduced_clock);
a7516a05 4331 } else {
7429e9d4 4332 fp = i9xx_dpll_compute_fp(&crtc->config.dpll);
a7516a05 4333 if (reduced_clock)
7429e9d4 4334 fp2 = i9xx_dpll_compute_fp(reduced_clock);
a7516a05
JB		 4335 }
4336
4337 I915_WRITE(FP0(pipe), fp);
8bcc2795 4338 crtc->config.dpll_hw_state.fp0 = fp;
a7516a05 4339
f47709a9
DV		 4340 crtc->lowfreq_avail = false;
4341 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
a7516a05
JB		 4342 reduced_clock && i915_powersave) {
4343 I915_WRITE(FP1(pipe), fp2);
8bcc2795 4344 crtc->config.dpll_hw_state.fp1 = fp2;
f47709a9 4345 crtc->lowfreq_avail = true;
a7516a05
JB		 4346 } else {
4347 I915_WRITE(FP1(pipe), fp);
8bcc2795 4348 crtc->config.dpll_hw_state.fp1 = fp;
a7516a05
JB		 4349 }
4350}
4351
89b667f8
JB		 4352static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv)
4353{
4354 u32 reg_val;
4355
4356 /*
4357 * PLLB opamp always calibrates to max value of 0x3f, force enable it
4358 * and set it to a reasonable value instead.
4359 */
ae99258f 4360 reg_val = vlv_dpio_read(dev_priv, DPIO_IREF(1));
89b667f8
JB		 4361 reg_val &= 0xffffff00;
4362 reg_val |= 0x00000030;
ae99258f 4363 vlv_dpio_write(dev_priv, DPIO_IREF(1), reg_val);
89b667f8 4364
ae99258f 4365 reg_val = vlv_dpio_read(dev_priv, DPIO_CALIBRATION);
89b667f8
JB		 4366 reg_val &= 0x8cffffff;
4367 reg_val = 0x8c000000;
ae99258f 4368 vlv_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val);
89b667f8 4369
ae99258f 4370 reg_val = vlv_dpio_read(dev_priv, DPIO_IREF(1));
89b667f8 4371 reg_val &= 0xffffff00;
ae99258f 4372 vlv_dpio_write(dev_priv, DPIO_IREF(1), reg_val);
89b667f8 4373
ae99258f 4374 reg_val = vlv_dpio_read(dev_priv, DPIO_CALIBRATION);
89b667f8
JB		 4375 reg_val &= 0x00ffffff;
4376 reg_val |= 0xb0000000;
ae99258f 4377 vlv_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val);
89b667f8
JB		 4378}
4379
b551842d
DV		 4380static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
4381 struct intel_link_m_n *m_n)
4382{
4383 struct drm_device *dev = crtc->base.dev;
4384 struct drm_i915_private *dev_priv = dev->dev_private;
4385 int pipe = crtc->pipe;
4386
e3b95f1e
DV		 4387 I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4388 I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n);
4389 I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m);
4390 I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n);
b551842d
DV		 4391}
4392
4393static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
4394 struct intel_link_m_n *m_n)
4395{
4396 struct drm_device *dev = crtc->base.dev;
4397 struct drm_i915_private *dev_priv = dev->dev_private;
4398 int pipe = crtc->pipe;
4399 enum transcoder transcoder = crtc->config.cpu_transcoder;
4400
4401 if (INTEL_INFO(dev)->gen >= 5) {
4402 I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
4403 I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
4404 I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
4405 I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
4406 } else {
e3b95f1e
DV		 4407 I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4408 I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n);
4409 I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m);
4410 I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n);
b551842d
DV		 4411 }
4412}
4413
03afc4a2
DV		 4414static void intel_dp_set_m_n(struct intel_crtc *crtc)
4415{
4416 if (crtc->config.has_pch_encoder)
4417 intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4418 else
4419 intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4420}
4421
f47709a9 4422static void vlv_update_pll(struct intel_crtc *crtc)
a0c4da24 4423{
f47709a9 4424 struct drm_device *dev = crtc->base.dev;
a0c4da24 4425 struct drm_i915_private *dev_priv = dev->dev_private;
f47709a9 4426 int pipe = crtc->pipe;
89b667f8 4427 u32 dpll, mdiv;
a0c4da24 4428 u32 bestn, bestm1, bestm2, bestp1, bestp2;
198a037f 4429 u32 coreclk, reg_val, dpll_md;
a0c4da24 4430
09153000
DV		 4431 mutex_lock(&dev_priv->dpio_lock);
4432
f47709a9
DV		 4433 bestn = crtc->config.dpll.n;
4434 bestm1 = crtc->config.dpll.m1;
4435 bestm2 = crtc->config.dpll.m2;
4436 bestp1 = crtc->config.dpll.p1;
4437 bestp2 = crtc->config.dpll.p2;
a0c4da24 4438
89b667f8
JB		 4439 /* See eDP HDMI DPIO driver vbios notes doc */
4440
4441 /* PLL B needs special handling */
4442 if (pipe)
4443 vlv_pllb_recal_opamp(dev_priv);
4444
4445 /* Set up Tx target for periodic Rcomp update */
ae99258f 4446 vlv_dpio_write(dev_priv, DPIO_IREF_BCAST, 0x0100000f);
89b667f8
JB		 4447
4448 /* Disable target IRef on PLL */
ae99258f 4449 reg_val = vlv_dpio_read(dev_priv, DPIO_IREF_CTL(pipe));
89b667f8 4450 reg_val &= 0x00ffffff;
ae99258f 4451 vlv_dpio_write(dev_priv, DPIO_IREF_CTL(pipe), reg_val);
89b667f8
JB		 4452
4453 /* Disable fast lock */
ae99258f 4454 vlv_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x610);
89b667f8
JB		 4455
4456 /* Set idtafcrecal before PLL is enabled */
a0c4da24
JB		 4457 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
4458 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
4459 mdiv |= ((bestn << DPIO_N_SHIFT));
a0c4da24 4460 mdiv |= (1 << DPIO_K_SHIFT);
7df5080b
JB		 4461
4462 /*
4463 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
4464 * but we don't support that).
4465 * Note: don't use the DAC post divider as it seems unstable.
4466 */
4467 mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
ae99258f 4468 vlv_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
a0c4da24 4469
a0c4da24 4470 mdiv |= DPIO_ENABLE_CALIBRATION;
ae99258f 4471 vlv_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
a0c4da24 4472
89b667f8 4473 /* Set HBR and RBR LPF coefficients */
ff9a6750 4474 if (crtc->config.port_clock == 162000 ||
99750bd4 4475 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_ANALOG) ||
89b667f8 4476 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI))
4abb2c39 4477 vlv_dpio_write(dev_priv, DPIO_LPF_COEFF(pipe),
885b0120 4478 0x009f0003);
89b667f8 4479 else
4abb2c39 4480 vlv_dpio_write(dev_priv, DPIO_LPF_COEFF(pipe),
89b667f8
JB		 4481 0x00d0000f);
4482
4483 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
4484 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) {
4485 /* Use SSC source */
4486 if (!pipe)
ae99258f 4487 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
89b667f8
JB		 4488 0x0df40000);
4489 else
ae99258f 4490 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
89b667f8
JB		 4491 0x0df70000);
4492 } else { /* HDMI or VGA */
4493 /* Use bend source */
4494 if (!pipe)
ae99258f 4495 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
89b667f8
JB		 4496 0x0df70000);
4497 else
ae99258f 4498 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
89b667f8
JB		 4499 0x0df40000);
4500 }
a0c4da24 4501
ae99258f 4502 coreclk = vlv_dpio_read(dev_priv, DPIO_CORE_CLK(pipe));
89b667f8
JB		 4503 coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
4504 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) ||
4505 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP))
4506 coreclk |= 0x01000000;
ae99258f 4507 vlv_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), coreclk);
a0c4da24 4508
ae99258f 4509 vlv_dpio_write(dev_priv, DPIO_PLL_CML(pipe), 0x87871000);
a0c4da24 4510
89b667f8
JB		 4511 /* Enable DPIO clock input */
4512 dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
4513 DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
4514 if (pipe)
4515 dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
a0c4da24
JB		 4516
4517 dpll |= DPLL_VCO_ENABLE;
8bcc2795
DV		 4518 crtc->config.dpll_hw_state.dpll = dpll;
4519
ef1b460d
DV		 4520 dpll_md = (crtc->config.pixel_multiplier - 1)
4521 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
8bcc2795
DV		 4522 crtc->config.dpll_hw_state.dpll_md = dpll_md;
4523
89b667f8
JB		 4524 if (crtc->config.has_dp_encoder)
4525 intel_dp_set_m_n(crtc);
09153000
DV		 4526
4527 mutex_unlock(&dev_priv->dpio_lock);
a0c4da24
JB		 4528}
4529
f47709a9
DV		 4530static void i9xx_update_pll(struct intel_crtc *crtc,
4531 intel_clock_t *reduced_clock,
eb1cbe48
DV		 4532 int num_connectors)
4533{
f47709a9 4534 struct drm_device *dev = crtc->base.dev;
eb1cbe48 4535 struct drm_i915_private *dev_priv = dev->dev_private;
eb1cbe48
DV		 4536 u32 dpll;
4537 bool is_sdvo;
f47709a9 4538 struct dpll *clock = &crtc->config.dpll;
eb1cbe48 4539
f47709a9 4540 i9xx_update_pll_dividers(crtc, reduced_clock);
2a8f64ca 4541
f47709a9
DV		 4542 is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
4543 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
eb1cbe48
DV		 4544
4545 dpll = DPLL_VGA_MODE_DIS;
4546
f47709a9 4547 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS))
eb1cbe48
DV		 4548 dpll |= DPLLB_MODE_LVDS;
4549 else
4550 dpll |= DPLLB_MODE_DAC_SERIAL;
6cc5f341 4551
ef1b460d 4552 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
198a037f
DV		 4553 dpll |= (crtc->config.pixel_multiplier - 1)
4554 << SDVO_MULTIPLIER_SHIFT_HIRES;
eb1cbe48 4555 }
198a037f
DV		 4556
4557 if (is_sdvo)
4a33e48d 4558 dpll |= DPLL_SDVO_HIGH_SPEED;
198a037f 4559
f47709a9 4560 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
4a33e48d 4561 dpll |= DPLL_SDVO_HIGH_SPEED;
eb1cbe48
DV		 4562
4563 /* compute bitmask from p1 value */
4564 if (IS_PINEVIEW(dev))
4565 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
4566 else {
4567 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4568 if (IS_G4X(dev) && reduced_clock)
4569 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
4570 }
4571 switch (clock->p2) {
4572 case 5:
4573 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
4574 break;
4575 case 7:
4576 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
4577 break;
4578 case 10:
4579 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
4580 break;
4581 case 14:
4582 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
4583 break;
4584 }
4585 if (INTEL_INFO(dev)->gen >= 4)
4586 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
4587
09ede541 4588 if (crtc->config.sdvo_tv_clock)
eb1cbe48 4589 dpll |= PLL_REF_INPUT_TVCLKINBC;
f47709a9 4590 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
eb1cbe48
DV		 4591 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4592 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4593 else
4594 dpll |= PLL_REF_INPUT_DREFCLK;
4595
4596 dpll |= DPLL_VCO_ENABLE;
8bcc2795
DV		 4597 crtc->config.dpll_hw_state.dpll = dpll;
4598
eb1cbe48 4599 if (INTEL_INFO(dev)->gen >= 4) {
ef1b460d
DV		 4600 u32 dpll_md = (crtc->config.pixel_multiplier - 1)
4601 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
8bcc2795 4602 crtc->config.dpll_hw_state.dpll_md = dpll_md;
eb1cbe48 4603 }
66e3d5c0
DV		 4604
4605 if (crtc->config.has_dp_encoder)
4606 intel_dp_set_m_n(crtc);
eb1cbe48
DV		 4607}
4608
f47709a9 4609static void i8xx_update_pll(struct intel_crtc *crtc,
f47709a9 4610 intel_clock_t *reduced_clock,
eb1cbe48
DV		 4611 int num_connectors)
4612{
f47709a9 4613 struct drm_device *dev = crtc->base.dev;
eb1cbe48 4614 struct drm_i915_private *dev_priv = dev->dev_private;
eb1cbe48 4615 u32 dpll;
f47709a9 4616 struct dpll *clock = &crtc->config.dpll;
eb1cbe48 4617
f47709a9 4618 i9xx_update_pll_dividers(crtc, reduced_clock);
2a8f64ca 4619
eb1cbe48
DV		 4620 dpll = DPLL_VGA_MODE_DIS;
4621
f47709a9 4622 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
eb1cbe48
DV		 4623 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4624 } else {
4625 if (clock->p1 == 2)
4626 dpll |= PLL_P1_DIVIDE_BY_TWO;
4627 else
4628 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4629 if (clock->p2 == 4)
4630 dpll |= PLL_P2_DIVIDE_BY_4;
4631 }
4632
4a33e48d
DV		 4633 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DVO))
4634 dpll |= DPLL_DVO_2X_MODE;
4635
f47709a9 4636 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
eb1cbe48
DV		 4637 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4638 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4639 else
4640 dpll |= PLL_REF_INPUT_DREFCLK;
4641
4642 dpll |= DPLL_VCO_ENABLE;
8bcc2795 4643 crtc->config.dpll_hw_state.dpll = dpll;
eb1cbe48
DV		 4644}
4645
8a654f3b 4646static void intel_set_pipe_timings(struct intel_crtc *intel_crtc)
b0e77b9c
PZ		 4647{
4648 struct drm_device *dev = intel_crtc->base.dev;
4649 struct drm_i915_private *dev_priv = dev->dev_private;
4650 enum pipe pipe = intel_crtc->pipe;
3b117c8f 4651 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
8a654f3b
DV		 4652 struct drm_display_mode *adjusted_mode =
4653 &intel_crtc->config.adjusted_mode;
4654 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
4d8a62ea
DV		 4655 uint32_t vsyncshift, crtc_vtotal, crtc_vblank_end;
4656
4657 /* We need to be careful not to changed the adjusted mode, for otherwise
4658 * the hw state checker will get angry at the mismatch. */
4659 crtc_vtotal = adjusted_mode->crtc_vtotal;
4660 crtc_vblank_end = adjusted_mode->crtc_vblank_end;
b0e77b9c
PZ		 4661
4662 if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
4663 /* the chip adds 2 halflines automatically */
4d8a62ea
DV		 4664 crtc_vtotal -= 1;
4665 crtc_vblank_end -= 1;
b0e77b9c
PZ		 4666 vsyncshift = adjusted_mode->crtc_hsync_start
4667 - adjusted_mode->crtc_htotal / 2;
4668 } else {
4669 vsyncshift = 0;
4670 }
4671
4672 if (INTEL_INFO(dev)->gen > 3)
fe2b8f9d 4673 I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
b0e77b9c 4674
fe2b8f9d 4675 I915_WRITE(HTOTAL(cpu_transcoder),
b0e77b9c
PZ		 4676 (adjusted_mode->crtc_hdisplay - 1) |
4677 ((adjusted_mode->crtc_htotal - 1) << 16));
fe2b8f9d 4678 I915_WRITE(HBLANK(cpu_transcoder),
b0e77b9c
PZ		 4679 (adjusted_mode->crtc_hblank_start - 1) |
4680 ((adjusted_mode->crtc_hblank_end - 1) << 16));
fe2b8f9d 4681 I915_WRITE(HSYNC(cpu_transcoder),
b0e77b9c
PZ		 4682 (adjusted_mode->crtc_hsync_start - 1) |
4683 ((adjusted_mode->crtc_hsync_end - 1) << 16));
4684
fe2b8f9d 4685 I915_WRITE(VTOTAL(cpu_transcoder),
b0e77b9c 4686 (adjusted_mode->crtc_vdisplay - 1) |
4d8a62ea 4687 ((crtc_vtotal - 1) << 16));
fe2b8f9d 4688 I915_WRITE(VBLANK(cpu_transcoder),
b0e77b9c 4689 (adjusted_mode->crtc_vblank_start - 1) |
4d8a62ea 4690 ((crtc_vblank_end - 1) << 16));
fe2b8f9d 4691 I915_WRITE(VSYNC(cpu_transcoder),
b0e77b9c
PZ		 4692 (adjusted_mode->crtc_vsync_start - 1) |
4693 ((adjusted_mode->crtc_vsync_end - 1) << 16));
4694
b5e508d4
PZ		 4695 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
4696 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
4697 * documented on the DDI_FUNC_CTL register description, EDP Input Select
4698 * bits. */
4699 if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP &&
4700 (pipe == PIPE_B || pipe == PIPE_C))
4701 I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
4702
b0e77b9c
PZ		 4703 /* pipesrc controls the size that is scaled from, which should
4704 * always be the user's requested size.
4705 */
4706 I915_WRITE(PIPESRC(pipe),
4707 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
4708}
4709
1bd1bd80
DV		 4710static void intel_get_pipe_timings(struct intel_crtc *crtc,
4711 struct intel_crtc_config *pipe_config)
4712{
4713 struct drm_device *dev = crtc->base.dev;
4714 struct drm_i915_private *dev_priv = dev->dev_private;
4715 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
4716 uint32_t tmp;
4717
4718 tmp = I915_READ(HTOTAL(cpu_transcoder));
4719 pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1;
4720 pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1;
4721 tmp = I915_READ(HBLANK(cpu_transcoder));
4722 pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1;
4723 pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1;
4724 tmp = I915_READ(HSYNC(cpu_transcoder));
4725 pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1;
4726 pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1;
4727
4728 tmp = I915_READ(VTOTAL(cpu_transcoder));
4729 pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1;
4730 pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1;
4731 tmp = I915_READ(VBLANK(cpu_transcoder));
4732 pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1;
4733 pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1;
4734 tmp = I915_READ(VSYNC(cpu_transcoder));
4735 pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1;
4736 pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1;
4737
4738 if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) {
4739 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE;
4740 pipe_config->adjusted_mode.crtc_vtotal += 1;
4741 pipe_config->adjusted_mode.crtc_vblank_end += 1;
4742 }
4743
4744 tmp = I915_READ(PIPESRC(crtc->pipe));
4745 pipe_config->requested_mode.vdisplay = (tmp & 0xffff) + 1;
4746 pipe_config->requested_mode.hdisplay = ((tmp >> 16) & 0xffff) + 1;
4747}
4748
babea61d
JB		 4749static void intel_crtc_mode_from_pipe_config(struct intel_crtc *intel_crtc,
4750 struct intel_crtc_config *pipe_config)
4751{
4752 struct drm_crtc *crtc = &intel_crtc->base;
4753
4754 crtc->mode.hdisplay = pipe_config->adjusted_mode.crtc_hdisplay;
4755 crtc->mode.htotal = pipe_config->adjusted_mode.crtc_htotal;
4756 crtc->mode.hsync_start = pipe_config->adjusted_mode.crtc_hsync_start;
4757 crtc->mode.hsync_end = pipe_config->adjusted_mode.crtc_hsync_end;
4758
4759 crtc->mode.vdisplay = pipe_config->adjusted_mode.crtc_vdisplay;
4760 crtc->mode.vtotal = pipe_config->adjusted_mode.crtc_vtotal;
4761 crtc->mode.vsync_start = pipe_config->adjusted_mode.crtc_vsync_start;
4762 crtc->mode.vsync_end = pipe_config->adjusted_mode.crtc_vsync_end;
4763
4764 crtc->mode.flags = pipe_config->adjusted_mode.flags;
4765
4766 crtc->mode.clock = pipe_config->adjusted_mode.clock;
4767 crtc->mode.flags |= pipe_config->adjusted_mode.flags;
4768}
4769
84b046f3
DV		 4770static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
4771{
4772 struct drm_device *dev = intel_crtc->base.dev;
4773 struct drm_i915_private *dev_priv = dev->dev_private;
4774 uint32_t pipeconf;
4775
9f11a9e4 4776 pipeconf = 0;
84b046f3
DV		 4777
4778 if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) {
4779 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4780 * core speed.
4781 *
4782 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4783 * pipe == 0 check?
4784 */
4785 if (intel_crtc->config.requested_mode.clock >
4786 dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
4787 pipeconf |= PIPECONF_DOUBLE_WIDE;
84b046f3
DV		 4788 }
4789
ff9ce46e
DV		 4790 /* only g4x and later have fancy bpc/dither controls */
4791 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
ff9ce46e
DV		 4792 /* Bspec claims that we can't use dithering for 30bpp pipes. */
4793 if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30)
4794 pipeconf |= PIPECONF_DITHER_EN |
84b046f3 4795 PIPECONF_DITHER_TYPE_SP;
84b046f3 4796
ff9ce46e
DV		 4797 switch (intel_crtc->config.pipe_bpp) {
4798 case 18:
4799 pipeconf |= PIPECONF_6BPC;
4800 break;
4801 case 24:
4802 pipeconf |= PIPECONF_8BPC;
4803 break;
4804 case 30:
4805 pipeconf |= PIPECONF_10BPC;
4806 break;
4807 default:
4808 /* Case prevented by intel_choose_pipe_bpp_dither. */
4809 BUG();
84b046f3
DV		 4810 }
4811 }
4812
4813 if (HAS_PIPE_CXSR(dev)) {
4814 if (intel_crtc->lowfreq_avail) {
4815 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4816 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
4817 } else {
4818 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
84b046f3
DV		 4819 }
4820 }
4821
84b046f3
DV		 4822 if (!IS_GEN2(dev) &&
4823 intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
4824 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
4825 else
4826 pipeconf |= PIPECONF_PROGRESSIVE;
4827
9f11a9e4
DV		 4828 if (IS_VALLEYVIEW(dev) && intel_crtc->config.limited_color_range)
4829 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
9c8e09b7 4830
84b046f3
DV		 4831 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
4832 POSTING_READ(PIPECONF(intel_crtc->pipe));
4833}
4834
f564048e 4835static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
f564048e 4836 int x, int y,
94352cf9 4837 struct drm_framebuffer *fb)
79e53945
JB		 4838{
4839 struct drm_device *dev = crtc->dev;
4840 struct drm_i915_private *dev_priv = dev->dev_private;
4841 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
b8cecdf5 4842 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
79e53945 4843 int pipe = intel_crtc->pipe;
80824003 4844 int plane = intel_crtc->plane;
c751ce4f 4845 int refclk, num_connectors = 0;
652c393a 4846 intel_clock_t clock, reduced_clock;
84b046f3 4847 u32 dspcntr;
a16af721
DV		 4848 bool ok, has_reduced_clock = false;
4849 bool is_lvds = false;
5eddb70b 4850 struct intel_encoder *encoder;
d4906093 4851 const intel_limit_t *limit;
5c3b82e2 4852 int ret;
79e53945 4853
6c2b7c12 4854 for_each_encoder_on_crtc(dev, crtc, encoder) {
5eddb70b 4855 switch (encoder->type) {
79e53945
JB		 4856 case INTEL_OUTPUT_LVDS:
4857 is_lvds = true;
4858 break;
79e53945 4859 }
43565a06 4860
c751ce4f 4861 num_connectors++;
79e53945
JB		 4862 }
4863
c65d77d8 4864 refclk = i9xx_get_refclk(crtc, num_connectors);
79e53945 4865
d4906093
ML		 4866 /*
4867 * Returns a set of divisors for the desired target clock with the given
4868 * refclk, or FALSE. The returned values represent the clock equation:
4869 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4870 */
1b894b59 4871 limit = intel_limit(crtc, refclk);
ff9a6750
DV		 4872 ok = dev_priv->display.find_dpll(limit, crtc,
4873 intel_crtc->config.port_clock,
ee9300bb
DV		 4874 refclk, NULL, &clock);
4875 if (!ok && !intel_crtc->config.clock_set) {
79e53945 4876 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5c3b82e2 4877 return -EINVAL;
79e53945
JB		 4878 }
4879
cda4b7d3 4880 /* Ensure that the cursor is valid for the new mode before changing... */
6b383a7f 4881 intel_crtc_update_cursor(crtc, true);
cda4b7d3 4882
ddc9003c 4883 if (is_lvds && dev_priv->lvds_downclock_avail) {
cec2f356
SP		 4884 /*
4885 * Ensure we match the reduced clock's P to the target clock.
4886 * If the clocks don't match, we can't switch the display clock
4887 * by using the FP0/FP1. In such case we will disable the LVDS
4888 * downclock feature.
4889 */
ee9300bb
DV		 4890 has_reduced_clock =
4891 dev_priv->display.find_dpll(limit, crtc,
5eddb70b 4892 dev_priv->lvds_downclock,
ee9300bb 4893 refclk, &clock,
5eddb70b 4894 &reduced_clock);
7026d4ac 4895 }
f47709a9
DV		 4896 /* Compat-code for transition, will disappear. */
4897 if (!intel_crtc->config.clock_set) {
4898 intel_crtc->config.dpll.n = clock.n;
4899 intel_crtc->config.dpll.m1 = clock.m1;
4900 intel_crtc->config.dpll.m2 = clock.m2;
4901 intel_crtc->config.dpll.p1 = clock.p1;
4902 intel_crtc->config.dpll.p2 = clock.p2;
4903 }
7026d4ac 4904
eb1cbe48 4905 if (IS_GEN2(dev))
8a654f3b 4906 i8xx_update_pll(intel_crtc,
2a8f64ca
VP		 4907 has_reduced_clock ? &reduced_clock : NULL,
4908 num_connectors);
a0c4da24 4909 else if (IS_VALLEYVIEW(dev))
f47709a9 4910 vlv_update_pll(intel_crtc);
79e53945 4911 else
f47709a9 4912 i9xx_update_pll(intel_crtc,
eb1cbe48 4913 has_reduced_clock ? &reduced_clock : NULL,
89b667f8 4914 num_connectors);
79e53945 4915
79e53945
JB		 4916 /* Set up the display plane register */
4917 dspcntr = DISPPLANE_GAMMA_ENABLE;
4918
da6ecc5d
JB		 4919 if (!IS_VALLEYVIEW(dev)) {
4920 if (pipe == 0)
4921 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
4922 else
4923 dspcntr |= DISPPLANE_SEL_PIPE_B;
4924 }
79e53945 4925
8a654f3b 4926 intel_set_pipe_timings(intel_crtc);
5eddb70b
CW		 4927
4928 /* pipesrc and dspsize control the size that is scaled from,
4929 * which should always be the user's requested size.
79e53945 4930 */
929c77fb
EA		 4931 I915_WRITE(DSPSIZE(plane),
4932 ((mode->vdisplay - 1) << 16) |
4933 (mode->hdisplay - 1));
4934 I915_WRITE(DSPPOS(plane), 0);
2c07245f 4935
84b046f3
DV		 4936 i9xx_set_pipeconf(intel_crtc);
4937
f564048e
EA		 4938 I915_WRITE(DSPCNTR(plane), dspcntr);
4939 POSTING_READ(DSPCNTR(plane));
4940
94352cf9 4941 ret = intel_pipe_set_base(crtc, x, y, fb);
f564048e
EA		 4942
4943 intel_update_watermarks(dev);
4944
f564048e
EA		 4945 return ret;
4946}
4947
2fa2fe9a
DV		 4948static void i9xx_get_pfit_config(struct intel_crtc *crtc,
4949 struct intel_crtc_config *pipe_config)
4950{
4951 struct drm_device *dev = crtc->base.dev;
4952 struct drm_i915_private *dev_priv = dev->dev_private;
4953 uint32_t tmp;
4954
4955 tmp = I915_READ(PFIT_CONTROL);
06922821
DV		 4956 if (!(tmp & PFIT_ENABLE))
4957 return;
2fa2fe9a 4958
06922821 4959 /* Check whether the pfit is attached to our pipe. */
2fa2fe9a
DV		 4960 if (INTEL_INFO(dev)->gen < 4) {
4961 if (crtc->pipe != PIPE_B)
4962 return;
2fa2fe9a
DV		 4963 } else {
4964 if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT))
4965 return;
4966 }
4967
06922821 4968 pipe_config->gmch_pfit.control = tmp;
2fa2fe9a
DV		 4969 pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS);
4970 if (INTEL_INFO(dev)->gen < 5)
4971 pipe_config->gmch_pfit.lvds_border_bits =
4972 I915_READ(LVDS) & LVDS_BORDER_ENABLE;
4973}
4974
0e8ffe1b
DV		 4975static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
4976 struct intel_crtc_config *pipe_config)
4977{
4978 struct drm_device *dev = crtc->base.dev;
4979 struct drm_i915_private *dev_priv = dev->dev_private;
4980 uint32_t tmp;
4981
e143a21c 4982 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
c0d43d62 4983 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
eccb140b 4984
0e8ffe1b
DV		 4985 tmp = I915_READ(PIPECONF(crtc->pipe));
4986 if (!(tmp & PIPECONF_ENABLE))
4987 return false;
4988
1bd1bd80
DV		 4989 intel_get_pipe_timings(crtc, pipe_config);
4990
2fa2fe9a
DV		 4991 i9xx_get_pfit_config(crtc, pipe_config);
4992
6c49f241
DV		 4993 if (INTEL_INFO(dev)->gen >= 4) {
4994 tmp = I915_READ(DPLL_MD(crtc->pipe));
4995 pipe_config->pixel_multiplier =
4996 ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK)
4997 >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1;
8bcc2795 4998 pipe_config->dpll_hw_state.dpll_md = tmp;
6c49f241
DV		 4999 } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
5000 tmp = I915_READ(DPLL(crtc->pipe));
5001 pipe_config->pixel_multiplier =
5002 ((tmp & SDVO_MULTIPLIER_MASK)
5003 >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1;
5004 } else {
5005 /* Note that on i915G/GM the pixel multiplier is in the sdvo
5006 * port and will be fixed up in the encoder->get_config
5007 * function. */
5008 pipe_config->pixel_multiplier = 1;
5009 }
8bcc2795
DV		 5010 pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe));
5011 if (!IS_VALLEYVIEW(dev)) {
5012 pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe));
5013 pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe));
165e901c
VS		 5014 } else {
5015 /* Mask out read-only status bits. */
5016 pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV |
5017 DPLL_PORTC_READY_MASK |
5018 DPLL_PORTB_READY_MASK);
8bcc2795 5019 }
6c49f241 5020
0e8ffe1b
DV		 5021 return true;
5022}
5023
dde86e2d 5024static void ironlake_init_pch_refclk(struct drm_device *dev)
13d83a67
JB		 5025{
5026 struct drm_i915_private *dev_priv = dev->dev_private;
5027 struct drm_mode_config *mode_config = &dev->mode_config;
13d83a67 5028 struct intel_encoder *encoder;
74cfd7ac 5029 u32 val, final;
13d83a67 5030 bool has_lvds = false;
199e5d79 5031 bool has_cpu_edp = false;
199e5d79 5032 bool has_panel = false;
99eb6a01
KP		 5033 bool has_ck505 = false;
5034 bool can_ssc = false;
13d83a67
JB		 5035
5036 /* We need to take the global config into account */
199e5d79
KP		 5037 list_for_each_entry(encoder, &mode_config->encoder_list,
5038 base.head) {
5039 switch (encoder->type) {
5040 case INTEL_OUTPUT_LVDS:
5041 has_panel = true;
5042 has_lvds = true;
5043 break;
5044 case INTEL_OUTPUT_EDP:
5045 has_panel = true;
2de6905f 5046 if (enc_to_dig_port(&encoder->base)->port == PORT_A)
199e5d79
KP		 5047 has_cpu_edp = true;
5048 break;
13d83a67
JB		 5049 }
5050 }
5051
99eb6a01 5052 if (HAS_PCH_IBX(dev)) {
41aa3448 5053 has_ck505 = dev_priv->vbt.display_clock_mode;
99eb6a01
KP		 5054 can_ssc = has_ck505;
5055 } else {
5056 has_ck505 = false;
5057 can_ssc = true;
5058 }
5059
2de6905f
ID		 5060 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
5061 has_panel, has_lvds, has_ck505);
13d83a67
JB		 5062
5063 /* Ironlake: try to setup display ref clock before DPLL
5064 * enabling. This is only under driver's control after
5065 * PCH B stepping, previous chipset stepping should be
5066 * ignoring this setting.
5067 */
74cfd7ac
CW		 5068 val = I915_READ(PCH_DREF_CONTROL);
5069
5070 /* As we must carefully and slowly disable/enable each source in turn,
5071 * compute the final state we want first and check if we need to
5072 * make any changes at all.
5073 */
5074 final = val;
5075 final &= ~DREF_NONSPREAD_SOURCE_MASK;
5076 if (has_ck505)
5077 final |= DREF_NONSPREAD_CK505_ENABLE;
5078 else
5079 final |= DREF_NONSPREAD_SOURCE_ENABLE;
5080
5081 final &= ~DREF_SSC_SOURCE_MASK;
5082 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5083 final &= ~DREF_SSC1_ENABLE;
5084
5085 if (has_panel) {
5086 final |= DREF_SSC_SOURCE_ENABLE;
5087
5088 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5089 final |= DREF_SSC1_ENABLE;
5090
5091 if (has_cpu_edp) {
5092 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5093 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5094 else
5095 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5096 } else
5097 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5098 } else {
5099 final |= DREF_SSC_SOURCE_DISABLE;
5100 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5101 }
5102
5103 if (final == val)
5104 return;
5105
13d83a67 5106 /* Always enable nonspread source */
74cfd7ac 5107 val &= ~DREF_NONSPREAD_SOURCE_MASK;
13d83a67 5108
99eb6a01 5109 if (has_ck505)
74cfd7ac 5110 val |= DREF_NONSPREAD_CK505_ENABLE;
99eb6a01 5111 else
74cfd7ac 5112 val |= DREF_NONSPREAD_SOURCE_ENABLE;
13d83a67 5113
199e5d79 5114 if (has_panel) {
74cfd7ac
CW		 5115 val &= ~DREF_SSC_SOURCE_MASK;
5116 val |= DREF_SSC_SOURCE_ENABLE;
13d83a67 5117
199e5d79 5118 /* SSC must be turned on before enabling the CPU output */
99eb6a01 5119 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
199e5d79 5120 DRM_DEBUG_KMS("Using SSC on panel\n");
74cfd7ac 5121 val |= DREF_SSC1_ENABLE;
e77166b5 5122 } else
74cfd7ac 5123 val &= ~DREF_SSC1_ENABLE;
199e5d79
KP		 5124
5125 /* Get SSC going before enabling the outputs */
74cfd7ac 5126 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5127 POSTING_READ(PCH_DREF_CONTROL);
5128 udelay(200);
5129
74cfd7ac 5130 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
13d83a67
JB		 5131
5132 /* Enable CPU source on CPU attached eDP */
199e5d79 5133 if (has_cpu_edp) {
99eb6a01 5134 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
199e5d79 5135 DRM_DEBUG_KMS("Using SSC on eDP\n");
74cfd7ac 5136 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
199e5d79 5137 }
13d83a67 5138 else
74cfd7ac 5139 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
199e5d79 5140 } else
74cfd7ac 5141 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
199e5d79 5142
74cfd7ac 5143 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5144 POSTING_READ(PCH_DREF_CONTROL);
5145 udelay(200);
5146 } else {
5147 DRM_DEBUG_KMS("Disabling SSC entirely\n");
5148
74cfd7ac 5149 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
199e5d79
KP		 5150
5151 /* Turn off CPU output */
74cfd7ac 5152 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
199e5d79 5153
74cfd7ac 5154 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5155 POSTING_READ(PCH_DREF_CONTROL);
5156 udelay(200);
5157
5158 /* Turn off the SSC source */
74cfd7ac
CW		 5159 val &= ~DREF_SSC_SOURCE_MASK;
5160 val |= DREF_SSC_SOURCE_DISABLE;
199e5d79
KP		 5161
5162 /* Turn off SSC1 */
74cfd7ac 5163 val &= ~DREF_SSC1_ENABLE;
199e5d79 5164
74cfd7ac 5165 I915_WRITE(PCH_DREF_CONTROL, val);
13d83a67
JB		 5166 POSTING_READ(PCH_DREF_CONTROL);
5167 udelay(200);
5168 }
74cfd7ac
CW		 5169
5170 BUG_ON(val != final);
13d83a67
JB		 5171}
5172
f31f2d55 5173static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv)
dde86e2d 5174{
f31f2d55 5175 uint32_t tmp;
dde86e2d 5176
0ff066a9
PZ		 5177 tmp = I915_READ(SOUTH_CHICKEN2);
5178 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
5179 I915_WRITE(SOUTH_CHICKEN2, tmp);
dde86e2d 5180
0ff066a9
PZ		 5181 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
5182 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
5183 DRM_ERROR("FDI mPHY reset assert timeout\n");
dde86e2d 5184
0ff066a9
PZ		 5185 tmp = I915_READ(SOUTH_CHICKEN2);
5186 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
5187 I915_WRITE(SOUTH_CHICKEN2, tmp);
dde86e2d 5188
0ff066a9
PZ		 5189 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
5190 FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100))
5191 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
f31f2d55
PZ		 5192}
5193
5194/* WaMPhyProgramming:hsw */
5195static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv)
5196{
5197 uint32_t tmp;
dde86e2d
PZ		 5198
5199 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
5200 tmp &= ~(0xFF << 24);
5201 tmp |= (0x12 << 24);
5202 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
5203
dde86e2d
PZ		 5204 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
5205 tmp |= (1 << 11);
5206 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
5207
5208 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
5209 tmp |= (1 << 11);
5210 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
5211
dde86e2d
PZ		 5212 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
5213 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5214 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
5215
5216 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
5217 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5218 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
5219
0ff066a9
PZ		 5220 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
5221 tmp &= ~(7 << 13);
5222 tmp |= (5 << 13);
5223 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
dde86e2d 5224
0ff066a9
PZ		 5225 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
5226 tmp &= ~(7 << 13);
5227 tmp |= (5 << 13);
5228 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
dde86e2d
PZ		 5229
5230 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
5231 tmp &= ~0xFF;
5232 tmp |= 0x1C;
5233 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
5234
5235 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
5236 tmp &= ~0xFF;
5237 tmp |= 0x1C;
5238 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
5239
5240 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
5241 tmp &= ~(0xFF << 16);
5242 tmp |= (0x1C << 16);
5243 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
5244
5245 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
5246 tmp &= ~(0xFF << 16);
5247 tmp |= (0x1C << 16);
5248 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
5249
0ff066a9
PZ		 5250 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
5251 tmp |= (1 << 27);
5252 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
dde86e2d 5253
0ff066a9
PZ		 5254 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
5255 tmp |= (1 << 27);
5256 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
dde86e2d 5257
0ff066a9
PZ		 5258 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
5259 tmp &= ~(0xF << 28);
5260 tmp |= (4 << 28);
5261 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
dde86e2d 5262
0ff066a9
PZ		 5263 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
5264 tmp &= ~(0xF << 28);
5265 tmp |= (4 << 28);
5266 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
f31f2d55
PZ		 5267}
5268
2fa86a1f
PZ		 5269/* Implements 3 different sequences from BSpec chapter "Display iCLK
5270 * Programming" based on the parameters passed:
5271 * - Sequence to enable CLKOUT_DP
5272 * - Sequence to enable CLKOUT_DP without spread
5273 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
5274 */
5275static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread,
5276 bool with_fdi)
f31f2d55
PZ		 5277{
5278 struct drm_i915_private *dev_priv = dev->dev_private;
2fa86a1f
PZ		 5279 uint32_t reg, tmp;
5280
5281 if (WARN(with_fdi && !with_spread, "FDI requires downspread\n"))
5282 with_spread = true;
5283 if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE &&
5284 with_fdi, "LP PCH doesn't have FDI\n"))
5285 with_fdi = false;
f31f2d55
PZ		 5286
5287 mutex_lock(&dev_priv->dpio_lock);
5288
5289 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5290 tmp &= ~SBI_SSCCTL_DISABLE;
5291 tmp |= SBI_SSCCTL_PATHALT;
5292 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5293
5294 udelay(24);
5295
2fa86a1f
PZ		 5296 if (with_spread) {
5297 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5298 tmp &= ~SBI_SSCCTL_PATHALT;
5299 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
f31f2d55 5300
2fa86a1f
PZ		 5301 if (with_fdi) {
5302 lpt_reset_fdi_mphy(dev_priv);
5303 lpt_program_fdi_mphy(dev_priv);
5304 }
5305 }
dde86e2d 5306
2fa86a1f
PZ		 5307 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
5308 SBI_GEN0 : SBI_DBUFF0;
5309 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
5310 tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE;
5311 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
c00db246
DV		 5312
5313 mutex_unlock(&dev_priv->dpio_lock);
dde86e2d
PZ		 5314}
5315
47701c3b
PZ		 5316/* Sequence to disable CLKOUT_DP */
5317static void lpt_disable_clkout_dp(struct drm_device *dev)
5318{
5319 struct drm_i915_private *dev_priv = dev->dev_private;
5320 uint32_t reg, tmp;
5321
5322 mutex_lock(&dev_priv->dpio_lock);
5323
5324 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
5325 SBI_GEN0 : SBI_DBUFF0;
5326 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
5327 tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE;
5328 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
5329
5330 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5331 if (!(tmp & SBI_SSCCTL_DISABLE)) {
5332 if (!(tmp & SBI_SSCCTL_PATHALT)) {
5333 tmp |= SBI_SSCCTL_PATHALT;
5334 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5335 udelay(32);
5336 }
5337 tmp |= SBI_SSCCTL_DISABLE;
5338 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5339 }
5340
5341 mutex_unlock(&dev_priv->dpio_lock);
5342}
5343
bf8fa3d3
PZ		 5344static void lpt_init_pch_refclk(struct drm_device *dev)
5345{
5346 struct drm_mode_config *mode_config = &dev->mode_config;
5347 struct intel_encoder *encoder;
5348 bool has_vga = false;
5349
5350 list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
5351 switch (encoder->type) {
5352 case INTEL_OUTPUT_ANALOG:
5353 has_vga = true;
5354 break;
5355 }
5356 }
5357
47701c3b
PZ		 5358 if (has_vga)
5359 lpt_enable_clkout_dp(dev, true, true);
5360 else
5361 lpt_disable_clkout_dp(dev);
bf8fa3d3
PZ		 5362}
5363
dde86e2d
PZ		 5364/*
5365 * Initialize reference clocks when the driver loads
5366 */
5367void intel_init_pch_refclk(struct drm_device *dev)
5368{
5369 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
5370 ironlake_init_pch_refclk(dev);
5371 else if (HAS_PCH_LPT(dev))
5372 lpt_init_pch_refclk(dev);
5373}
5374
d9d444cb
JB		 5375static int ironlake_get_refclk(struct drm_crtc *crtc)
5376{
5377 struct drm_device *dev = crtc->dev;
5378 struct drm_i915_private *dev_priv = dev->dev_private;
5379 struct intel_encoder *encoder;
d9d444cb
JB		 5380 int num_connectors = 0;
5381 bool is_lvds = false;
5382
6c2b7c12 5383 for_each_encoder_on_crtc(dev, crtc, encoder) {
d9d444cb
JB		 5384 switch (encoder->type) {
5385 case INTEL_OUTPUT_LVDS:
5386 is_lvds = true;
5387 break;
d9d444cb
JB		 5388 }
5389 num_connectors++;
5390 }
5391
5392 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
5393 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
41aa3448
RV		 5394 dev_priv->vbt.lvds_ssc_freq);
5395 return dev_priv->vbt.lvds_ssc_freq * 1000;
d9d444cb
JB		 5396 }
5397
5398 return 120000;
5399}
5400
6ff93609 5401static void ironlake_set_pipeconf(struct drm_crtc *crtc)
79e53945 5402{
c8203565 5403 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
79e53945
JB		 5404 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5405 int pipe = intel_crtc->pipe;
c8203565
PZ		 5406 uint32_t val;
5407
78114071 5408 val = 0;
c8203565 5409
965e0c48 5410 switch (intel_crtc->config.pipe_bpp) {
c8203565 5411 case 18:
dfd07d72 5412 val |= PIPECONF_6BPC;
c8203565
PZ		 5413 break;
5414 case 24:
dfd07d72 5415 val |= PIPECONF_8BPC;
c8203565
PZ		 5416 break;
5417 case 30:
dfd07d72 5418 val |= PIPECONF_10BPC;
c8203565
PZ		 5419 break;
5420 case 36:
dfd07d72 5421 val |= PIPECONF_12BPC;
c8203565
PZ		 5422 break;
5423 default:
cc769b62
PZ		 5424 /* Case prevented by intel_choose_pipe_bpp_dither. */
5425 BUG();
c8203565
PZ		 5426 }
5427
d8b32247 5428 if (intel_crtc->config.dither)
c8203565
PZ		 5429 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5430
6ff93609 5431 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
c8203565
PZ		 5432 val |= PIPECONF_INTERLACED_ILK;
5433 else
5434 val |= PIPECONF_PROGRESSIVE;
5435
50f3b016 5436 if (intel_crtc->config.limited_color_range)
3685a8f3 5437 val |= PIPECONF_COLOR_RANGE_SELECT;
3685a8f3 5438
c8203565
PZ		 5439 I915_WRITE(PIPECONF(pipe), val);
5440 POSTING_READ(PIPECONF(pipe));
5441}
5442
86d3efce
VS		 5443/*
5444 * Set up the pipe CSC unit.
5445 *
5446 * Currently only full range RGB to limited range RGB conversion
5447 * is supported, but eventually this should handle various
5448 * RGB<->YCbCr scenarios as well.
5449 */
50f3b016 5450static void intel_set_pipe_csc(struct drm_crtc *crtc)
86d3efce
VS		 5451{
5452 struct drm_device *dev = crtc->dev;
5453 struct drm_i915_private *dev_priv = dev->dev_private;
5454 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5455 int pipe = intel_crtc->pipe;
5456 uint16_t coeff = 0x7800; /* 1.0 */
5457
5458 /*
5459 * TODO: Check what kind of values actually come out of the pipe
5460 * with these coeff/postoff values and adjust to get the best
5461 * accuracy. Perhaps we even need to take the bpc value into
5462 * consideration.
5463 */
5464
50f3b016 5465 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5466 coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5467
5468 /*
5469 * GY/GU and RY/RU should be the other way around according
5470 * to BSpec, but reality doesn't agree. Just set them up in
5471 * a way that results in the correct picture.
5472 */
5473 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
5474 I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
5475
5476 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
5477 I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
5478
5479 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
5480 I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
5481
5482 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
5483 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
5484 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
5485
5486 if (INTEL_INFO(dev)->gen > 6) {
5487 uint16_t postoff = 0;
5488
50f3b016 5489 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5490 postoff = (16 * (1 << 13) / 255) & 0x1fff;
5491
5492 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
5493 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
5494 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
5495
5496 I915_WRITE(PIPE_CSC_MODE(pipe), 0);
5497 } else {
5498 uint32_t mode = CSC_MODE_YUV_TO_RGB;
5499
50f3b016 5500 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5501 mode |= CSC_BLACK_SCREEN_OFFSET;
5502
5503 I915_WRITE(PIPE_CSC_MODE(pipe), mode);
5504 }
5505}
5506
6ff93609 5507static void haswell_set_pipeconf(struct drm_crtc *crtc)
ee2b0b38
PZ		 5508{
5509 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5510 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 5511 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
ee2b0b38
PZ		 5512 uint32_t val;
5513
3eff4faa 5514 val = 0;
ee2b0b38 5515
d8b32247 5516 if (intel_crtc->config.dither)
ee2b0b38
PZ		 5517 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5518
6ff93609 5519 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
ee2b0b38
PZ		 5520 val |= PIPECONF_INTERLACED_ILK;
5521 else
5522 val |= PIPECONF_PROGRESSIVE;
5523
702e7a56
PZ		 5524 I915_WRITE(PIPECONF(cpu_transcoder), val);
5525 POSTING_READ(PIPECONF(cpu_transcoder));
3eff4faa
DV		 5526
5527 I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT);
5528 POSTING_READ(GAMMA_MODE(intel_crtc->pipe));
ee2b0b38
PZ		 5529}
5530
6591c6e4 5531static bool ironlake_compute_clocks(struct drm_crtc *crtc,
6591c6e4
PZ		 5532 intel_clock_t *clock,
5533 bool *has_reduced_clock,
5534 intel_clock_t *reduced_clock)
5535{
5536 struct drm_device *dev = crtc->dev;
5537 struct drm_i915_private *dev_priv = dev->dev_private;
5538 struct intel_encoder *intel_encoder;
5539 int refclk;
d4906093 5540 const intel_limit_t *limit;
a16af721 5541 bool ret, is_lvds = false;
79e53945 5542
6591c6e4
PZ		 5543 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5544 switch (intel_encoder->type) {
79e53945
JB		 5545 case INTEL_OUTPUT_LVDS:
5546 is_lvds = true;
5547 break;
79e53945
JB		 5548 }
5549 }
5550
d9d444cb 5551 refclk = ironlake_get_refclk(crtc);
79e53945 5552
d4906093
ML		 5553 /*
5554 * Returns a set of divisors for the desired target clock with the given
5555 * refclk, or FALSE. The returned values represent the clock equation:
5556 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
5557 */
1b894b59 5558 limit = intel_limit(crtc, refclk);
ff9a6750
DV		 5559 ret = dev_priv->display.find_dpll(limit, crtc,
5560 to_intel_crtc(crtc)->config.port_clock,
ee9300bb 5561 refclk, NULL, clock);
6591c6e4
PZ		 5562 if (!ret)
5563 return false;
cda4b7d3 5564
ddc9003c 5565 if (is_lvds && dev_priv->lvds_downclock_avail) {
cec2f356
SP		 5566 /*
5567 * Ensure we match the reduced clock's P to the target clock.
5568 * If the clocks don't match, we can't switch the display clock
5569 * by using the FP0/FP1. In such case we will disable the LVDS
5570 * downclock feature.
5571 */
ee9300bb
DV		 5572 *has_reduced_clock =
5573 dev_priv->display.find_dpll(limit, crtc,
5574 dev_priv->lvds_downclock,
5575 refclk, clock,
5576 reduced_clock);
652c393a 5577 }
61e9653f 5578
6591c6e4
PZ		 5579 return true;
5580}
5581
01a415fd
DV		 5582static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
5583{
5584 struct drm_i915_private *dev_priv = dev->dev_private;
5585 uint32_t temp;
5586
5587 temp = I915_READ(SOUTH_CHICKEN1);
5588 if (temp & FDI_BC_BIFURCATION_SELECT)
5589 return;
5590
5591 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
5592 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
5593
5594 temp |= FDI_BC_BIFURCATION_SELECT;
5595 DRM_DEBUG_KMS("enabling fdi C rx\n");
5596 I915_WRITE(SOUTH_CHICKEN1, temp);
5597 POSTING_READ(SOUTH_CHICKEN1);
5598}
5599
ebfd86fd 5600static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
01a415fd
DV		 5601{
5602 struct drm_device *dev = intel_crtc->base.dev;
5603 struct drm_i915_private *dev_priv = dev->dev_private;
01a415fd
DV		 5604
5605 switch (intel_crtc->pipe) {
5606 case PIPE_A:
ebfd86fd 5607 break;
01a415fd 5608 case PIPE_B:
ebfd86fd 5609 if (intel_crtc->config.fdi_lanes > 2)
01a415fd
DV		 5610 WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
5611 else
5612 cpt_enable_fdi_bc_bifurcation(dev);
5613
ebfd86fd 5614 break;
01a415fd 5615 case PIPE_C:
01a415fd
DV		 5616 cpt_enable_fdi_bc_bifurcation(dev);
5617
ebfd86fd 5618 break;
01a415fd
DV		 5619 default:
5620 BUG();
5621 }
5622}
5623
d4b1931c
PZ		 5624int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
5625{
5626 /*
5627 * Account for spread spectrum to avoid
5628 * oversubscribing the link. Max center spread
5629 * is 2.5%; use 5% for safety's sake.
5630 */
5631 u32 bps = target_clock * bpp * 21 / 20;
5632 return bps / (link_bw * 8) + 1;
5633}
5634
7429e9d4 5635static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
6cf86a5e 5636{
7429e9d4 5637 return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
f48d8f23
PZ		 5638}
5639
de13a2e3 5640static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
7429e9d4 5641 u32 *fp,
9a7c7890 5642 intel_clock_t *reduced_clock, u32 *fp2)
79e53945 5643{
de13a2e3 5644 struct drm_crtc *crtc = &intel_crtc->base;
79e53945
JB		 5645 struct drm_device *dev = crtc->dev;
5646 struct drm_i915_private *dev_priv = dev->dev_private;
de13a2e3
PZ		 5647 struct intel_encoder *intel_encoder;
5648 uint32_t dpll;
6cc5f341 5649 int factor, num_connectors = 0;
09ede541 5650 bool is_lvds = false, is_sdvo = false;
79e53945 5651
de13a2e3
PZ		 5652 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5653 switch (intel_encoder->type) {
79e53945
JB		 5654 case INTEL_OUTPUT_LVDS:
5655 is_lvds = true;
5656 break;
5657 case INTEL_OUTPUT_SDVO:
7d57382e 5658 case INTEL_OUTPUT_HDMI:
79e53945 5659 is_sdvo = true;
79e53945 5660 break;
79e53945 5661 }
43565a06 5662
c751ce4f 5663 num_connectors++;
79e53945 5664 }
79e53945 5665
c1858123 5666 /* Enable autotuning of the PLL clock (if permissible) */
8febb297
EA		 5667 factor = 21;
5668 if (is_lvds) {
5669 if ((intel_panel_use_ssc(dev_priv) &&
41aa3448 5670 dev_priv->vbt.lvds_ssc_freq == 100) ||
f0b44056 5671 (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
8febb297 5672 factor = 25;
09ede541 5673 } else if (intel_crtc->config.sdvo_tv_clock)
8febb297 5674 factor = 20;
c1858123 5675
7429e9d4 5676 if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor))
7d0ac5b7 5677 *fp |= FP_CB_TUNE;
2c07245f 5678
9a7c7890
DV		 5679 if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
5680 *fp2 |= FP_CB_TUNE;
5681
5eddb70b 5682 dpll = 0;
2c07245f 5683
a07d6787
EA		 5684 if (is_lvds)
5685 dpll |= DPLLB_MODE_LVDS;
5686 else
5687 dpll |= DPLLB_MODE_DAC_SERIAL;
198a037f 5688
ef1b460d
DV		 5689 dpll |= (intel_crtc->config.pixel_multiplier - 1)
5690 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
198a037f
DV		 5691
5692 if (is_sdvo)
4a33e48d 5693 dpll |= DPLL_SDVO_HIGH_SPEED;
9566e9af 5694 if (intel_crtc->config.has_dp_encoder)
4a33e48d 5695 dpll |= DPLL_SDVO_HIGH_SPEED;
79e53945 5696
a07d6787 5697 /* compute bitmask from p1 value */
7429e9d4 5698 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
a07d6787 5699 /* also FPA1 */
7429e9d4 5700 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
a07d6787 5701
7429e9d4 5702 switch (intel_crtc->config.dpll.p2) {
a07d6787
EA		 5703 case 5:
5704 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
5705 break;
5706 case 7:
5707 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
5708 break;
5709 case 10:
5710 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
5711 break;
5712 case 14:
5713 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
5714 break;
79e53945
JB		 5715 }
5716
b4c09f3b 5717 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
43565a06 5718 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
79e53945
JB		 5719 else
5720 dpll |= PLL_REF_INPUT_DREFCLK;
5721
959e16d6 5722 return dpll | DPLL_VCO_ENABLE;
de13a2e3
PZ		 5723}
5724
5725static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
de13a2e3
PZ		 5726 int x, int y,
5727 struct drm_framebuffer *fb)
5728{
5729 struct drm_device *dev = crtc->dev;
5730 struct drm_i915_private *dev_priv = dev->dev_private;
5731 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5732 int pipe = intel_crtc->pipe;
5733 int plane = intel_crtc->plane;
5734 int num_connectors = 0;
5735 intel_clock_t clock, reduced_clock;
cbbab5bd 5736 u32 dpll = 0, fp = 0, fp2 = 0;
e2f12b07 5737 bool ok, has_reduced_clock = false;
8b47047b 5738 bool is_lvds = false;
de13a2e3 5739 struct intel_encoder *encoder;
e2b78267 5740 struct intel_shared_dpll *pll;
de13a2e3 5741 int ret;
de13a2e3
PZ		 5742
5743 for_each_encoder_on_crtc(dev, crtc, encoder) {
5744 switch (encoder->type) {
5745 case INTEL_OUTPUT_LVDS:
5746 is_lvds = true;
5747 break;
de13a2e3
PZ		 5748 }
5749
5750 num_connectors++;
a07d6787 5751 }
79e53945 5752
5dc5298b
PZ		 5753 WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
5754 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
a07d6787 5755
ff9a6750 5756 ok = ironlake_compute_clocks(crtc, &clock,
de13a2e3 5757 &has_reduced_clock, &reduced_clock);
ee9300bb 5758 if (!ok && !intel_crtc->config.clock_set) {
de13a2e3
PZ		 5759 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5760 return -EINVAL;
79e53945 5761 }
f47709a9
DV		 5762 /* Compat-code for transition, will disappear. */
5763 if (!intel_crtc->config.clock_set) {
5764 intel_crtc->config.dpll.n = clock.n;
5765 intel_crtc->config.dpll.m1 = clock.m1;
5766 intel_crtc->config.dpll.m2 = clock.m2;
5767 intel_crtc->config.dpll.p1 = clock.p1;
5768 intel_crtc->config.dpll.p2 = clock.p2;
5769 }
79e53945 5770
de13a2e3
PZ		 5771 /* Ensure that the cursor is valid for the new mode before changing... */
5772 intel_crtc_update_cursor(crtc, true);
5773
5dc5298b 5774 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
8b47047b 5775 if (intel_crtc->config.has_pch_encoder) {
7429e9d4 5776 fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
cbbab5bd 5777 if (has_reduced_clock)
7429e9d4 5778 fp2 = i9xx_dpll_compute_fp(&reduced_clock);
cbbab5bd 5779
7429e9d4 5780 dpll = ironlake_compute_dpll(intel_crtc,
cbbab5bd
DV		 5781 &fp, &reduced_clock,
5782 has_reduced_clock ? &fp2 : NULL);
5783
959e16d6 5784 intel_crtc->config.dpll_hw_state.dpll = dpll;
66e985c0
DV		 5785 intel_crtc->config.dpll_hw_state.fp0 = fp;
5786 if (has_reduced_clock)
5787 intel_crtc->config.dpll_hw_state.fp1 = fp2;
5788 else
5789 intel_crtc->config.dpll_hw_state.fp1 = fp;
5790
b89a1d39 5791 pll = intel_get_shared_dpll(intel_crtc);
ee7b9f93 5792 if (pll == NULL) {
84f44ce7
VS		 5793 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
5794 pipe_name(pipe));
4b645f14
JB		 5795 return -EINVAL;
5796 }
ee7b9f93 5797 } else
e72f9fbf 5798 intel_put_shared_dpll(intel_crtc);
79e53945 5799
03afc4a2
DV		 5800 if (intel_crtc->config.has_dp_encoder)
5801 intel_dp_set_m_n(intel_crtc);
79e53945 5802
bcd644e0
DV		 5803 if (is_lvds && has_reduced_clock && i915_powersave)
5804 intel_crtc->lowfreq_avail = true;
5805 else
5806 intel_crtc->lowfreq_avail = false;
e2b78267
DV		 5807
5808 if (intel_crtc->config.has_pch_encoder) {
5809 pll = intel_crtc_to_shared_dpll(intel_crtc);
5810
652c393a
JB		 5811 }
5812
8a654f3b 5813 intel_set_pipe_timings(intel_crtc);
5eddb70b 5814
ca3a0ff8 5815 if (intel_crtc->config.has_pch_encoder) {
ca3a0ff8
DV		 5816 intel_cpu_transcoder_set_m_n(intel_crtc,
5817 &intel_crtc->config.fdi_m_n);
5818 }
2c07245f 5819
ebfd86fd
DV		 5820 if (IS_IVYBRIDGE(dev))
5821 ivybridge_update_fdi_bc_bifurcation(intel_crtc);
79e53945 5822
6ff93609 5823 ironlake_set_pipeconf(crtc);
79e53945 5824
a1f9e77e
PZ		 5825 /* Set up the display plane register */
5826 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
b24e7179 5827 POSTING_READ(DSPCNTR(plane));
79e53945 5828
94352cf9 5829 ret = intel_pipe_set_base(crtc, x, y, fb);
7662c8bd
SL		 5830
5831 intel_update_watermarks(dev);
5832
1857e1da 5833 return ret;
79e53945
JB		 5834}
5835
72419203
DV		 5836static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc,
5837 struct intel_crtc_config *pipe_config)
5838{
5839 struct drm_device *dev = crtc->base.dev;
5840 struct drm_i915_private *dev_priv = dev->dev_private;
5841 enum transcoder transcoder = pipe_config->cpu_transcoder;
5842
5843 pipe_config->fdi_m_n.link_m = I915_READ(PIPE_LINK_M1(transcoder));
5844 pipe_config->fdi_m_n.link_n = I915_READ(PIPE_LINK_N1(transcoder));
5845 pipe_config->fdi_m_n.gmch_m = I915_READ(PIPE_DATA_M1(transcoder))
5846 & ~TU_SIZE_MASK;
5847 pipe_config->fdi_m_n.gmch_n = I915_READ(PIPE_DATA_N1(transcoder));
5848 pipe_config->fdi_m_n.tu = ((I915_READ(PIPE_DATA_M1(transcoder))
5849 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
5850}
5851
2fa2fe9a
DV		 5852static void ironlake_get_pfit_config(struct intel_crtc *crtc,
5853 struct intel_crtc_config *pipe_config)
5854{
5855 struct drm_device *dev = crtc->base.dev;
5856 struct drm_i915_private *dev_priv = dev->dev_private;
5857 uint32_t tmp;
5858
5859 tmp = I915_READ(PF_CTL(crtc->pipe));
5860
5861 if (tmp & PF_ENABLE) {
fd4daa9c 5862 pipe_config->pch_pfit.enabled = true;
2fa2fe9a
DV		 5863 pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe));
5864 pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe));
cb8b2a30
DV		 5865
5866 /* We currently do not free assignements of panel fitters on
5867 * ivb/hsw (since we don't use the higher upscaling modes which
5868 * differentiates them) so just WARN about this case for now. */
5869 if (IS_GEN7(dev)) {
5870 WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) !=
5871 PF_PIPE_SEL_IVB(crtc->pipe));
5872 }
2fa2fe9a 5873 }
79e53945
JB		 5874}
5875
0e8ffe1b
DV		 5876static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
5877 struct intel_crtc_config *pipe_config)
5878{
5879 struct drm_device *dev = crtc->base.dev;
5880 struct drm_i915_private *dev_priv = dev->dev_private;
5881 uint32_t tmp;
5882
e143a21c 5883 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
c0d43d62 5884 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
eccb140b 5885
0e8ffe1b
DV		 5886 tmp = I915_READ(PIPECONF(crtc->pipe));
5887 if (!(tmp & PIPECONF_ENABLE))
5888 return false;
5889
ab9412ba 5890 if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
66e985c0
DV		 5891 struct intel_shared_dpll *pll;
5892
88adfff1
DV		 5893 pipe_config->has_pch_encoder = true;
5894
627eb5a3
DV		 5895 tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
5896 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
5897 FDI_DP_PORT_WIDTH_SHIFT) + 1;
72419203
DV		 5898
5899 ironlake_get_fdi_m_n_config(crtc, pipe_config);
6c49f241 5900
c0d43d62 5901 if (HAS_PCH_IBX(dev_priv->dev)) {
d94ab068
DV		 5902 pipe_config->shared_dpll =
5903 (enum intel_dpll_id) crtc->pipe;
c0d43d62
DV		 5904 } else {
5905 tmp = I915_READ(PCH_DPLL_SEL);
5906 if (tmp & TRANS_DPLLB_SEL(crtc->pipe))
5907 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B;
5908 else
5909 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A;
5910 }
66e985c0
DV		 5911
5912 pll = &dev_priv->shared_dplls[pipe_config->shared_dpll];
5913
5914 WARN_ON(!pll->get_hw_state(dev_priv, pll,
5915 &pipe_config->dpll_hw_state));
c93f54cf
DV		 5916
5917 tmp = pipe_config->dpll_hw_state.dpll;
5918 pipe_config->pixel_multiplier =
5919 ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK)
5920 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1;
6c49f241
DV		 5921 } else {
5922 pipe_config->pixel_multiplier = 1;
627eb5a3
DV		 5923 }
5924
1bd1bd80
DV		 5925 intel_get_pipe_timings(crtc, pipe_config);
5926
2fa2fe9a
DV		 5927 ironlake_get_pfit_config(crtc, pipe_config);
5928
0e8ffe1b
DV		 5929 return true;
5930}
5931
be256dc7
PZ		 5932static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
5933{
5934 struct drm_device *dev = dev_priv->dev;
5935 struct intel_ddi_plls *plls = &dev_priv->ddi_plls;
5936 struct intel_crtc *crtc;
5937 unsigned long irqflags;
bd633a7c 5938 uint32_t val;
be256dc7
PZ		 5939
5940 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
5941 WARN(crtc->base.enabled, "CRTC for pipe %c enabled\n",
5942 pipe_name(crtc->pipe));
5943
5944 WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n");
5945 WARN(plls->spll_refcount, "SPLL enabled\n");
5946 WARN(plls->wrpll1_refcount, "WRPLL1 enabled\n");
5947 WARN(plls->wrpll2_refcount, "WRPLL2 enabled\n");
5948 WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n");
5949 WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE,
5950 "CPU PWM1 enabled\n");
5951 WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE,
5952 "CPU PWM2 enabled\n");
5953 WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE,
5954 "PCH PWM1 enabled\n");
5955 WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
5956 "Utility pin enabled\n");
5957 WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n");
5958
5959 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
5960 val = I915_READ(DEIMR);
5961 WARN((val & ~DE_PCH_EVENT_IVB) != val,
5962 "Unexpected DEIMR bits enabled: 0x%x\n", val);
5963 val = I915_READ(SDEIMR);
bd633a7c 5964 WARN((val | SDE_HOTPLUG_MASK_CPT) != 0xffffffff,
be256dc7
PZ		 5965 "Unexpected SDEIMR bits enabled: 0x%x\n", val);
5966 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
5967}
5968
5969/*
5970 * This function implements pieces of two sequences from BSpec:
5971 * - Sequence for display software to disable LCPLL
5972 * - Sequence for display software to allow package C8+
5973 * The steps implemented here are just the steps that actually touch the LCPLL
5974 * register. Callers should take care of disabling all the display engine
5975 * functions, doing the mode unset, fixing interrupts, etc.
5976 */
5977void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
5978 bool switch_to_fclk, bool allow_power_down)
5979{
5980 uint32_t val;
5981
5982 assert_can_disable_lcpll(dev_priv);
5983
5984 val = I915_READ(LCPLL_CTL);
5985
5986 if (switch_to_fclk) {
5987 val |= LCPLL_CD_SOURCE_FCLK;
5988 I915_WRITE(LCPLL_CTL, val);
5989
5990 if (wait_for_atomic_us(I915_READ(LCPLL_CTL) &
5991 LCPLL_CD_SOURCE_FCLK_DONE, 1))
5992 DRM_ERROR("Switching to FCLK failed\n");
5993
5994 val = I915_READ(LCPLL_CTL);
5995 }
5996
5997 val |= LCPLL_PLL_DISABLE;
5998 I915_WRITE(LCPLL_CTL, val);
5999 POSTING_READ(LCPLL_CTL);
6000
6001 if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1))
6002 DRM_ERROR("LCPLL still locked\n");
6003
6004 val = I915_READ(D_COMP);
6005 val |= D_COMP_COMP_DISABLE;
6006 I915_WRITE(D_COMP, val);
6007 POSTING_READ(D_COMP);
6008 ndelay(100);
6009
6010 if (wait_for((I915_READ(D_COMP) & D_COMP_RCOMP_IN_PROGRESS) == 0, 1))
6011 DRM_ERROR("D_COMP RCOMP still in progress\n");
6012
6013 if (allow_power_down) {
6014 val = I915_READ(LCPLL_CTL);
6015 val |= LCPLL_POWER_DOWN_ALLOW;
6016 I915_WRITE(LCPLL_CTL, val);
6017 POSTING_READ(LCPLL_CTL);
6018 }
6019}
6020
6021/*
6022 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
6023 * source.
6024 */
6025void hsw_restore_lcpll(struct drm_i915_private *dev_priv)
6026{
6027 uint32_t val;
6028
6029 val = I915_READ(LCPLL_CTL);
6030
6031 if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK |
6032 LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK)
6033 return;
6034
215733fa
PZ		 6035 /* Make sure we're not on PC8 state before disabling PC8, otherwise
6036 * we'll hang the machine! */
6037 dev_priv->uncore.funcs.force_wake_get(dev_priv);
6038
be256dc7
PZ		 6039 if (val & LCPLL_POWER_DOWN_ALLOW) {
6040 val &= ~LCPLL_POWER_DOWN_ALLOW;
6041 I915_WRITE(LCPLL_CTL, val);
35d8f2eb 6042 POSTING_READ(LCPLL_CTL);
be256dc7
PZ		 6043 }
6044
6045 val = I915_READ(D_COMP);
6046 val |= D_COMP_COMP_FORCE;
6047 val &= ~D_COMP_COMP_DISABLE;
6048 I915_WRITE(D_COMP, val);
35d8f2eb 6049 POSTING_READ(D_COMP);
be256dc7
PZ		 6050
6051 val = I915_READ(LCPLL_CTL);
6052 val &= ~LCPLL_PLL_DISABLE;
6053 I915_WRITE(LCPLL_CTL, val);
6054
6055 if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5))
6056 DRM_ERROR("LCPLL not locked yet\n");
6057
6058 if (val & LCPLL_CD_SOURCE_FCLK) {
6059 val = I915_READ(LCPLL_CTL);
6060 val &= ~LCPLL_CD_SOURCE_FCLK;
6061 I915_WRITE(LCPLL_CTL, val);
6062
6063 if (wait_for_atomic_us((I915_READ(LCPLL_CTL) &
6064 LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
6065 DRM_ERROR("Switching back to LCPLL failed\n");
6066 }
215733fa
PZ		 6067
6068 dev_priv->uncore.funcs.force_wake_put(dev_priv);
be256dc7
PZ		 6069}
6070
c67a470b
PZ		 6071void hsw_enable_pc8_work(struct work_struct *__work)
6072{
6073 struct drm_i915_private *dev_priv =
6074 container_of(to_delayed_work(__work), struct drm_i915_private,
6075 pc8.enable_work);
6076 struct drm_device *dev = dev_priv->dev;
6077 uint32_t val;
6078
6079 if (dev_priv->pc8.enabled)
6080 return;
6081
6082 DRM_DEBUG_KMS("Enabling package C8+\n");
6083
6084 dev_priv->pc8.enabled = true;
6085
6086 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
6087 val = I915_READ(SOUTH_DSPCLK_GATE_D);
6088 val &= ~PCH_LP_PARTITION_LEVEL_DISABLE;
6089 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
6090 }
6091
6092 lpt_disable_clkout_dp(dev);
6093 hsw_pc8_disable_interrupts(dev);
6094 hsw_disable_lcpll(dev_priv, true, true);
6095}
6096
6097static void __hsw_enable_package_c8(struct drm_i915_private *dev_priv)
6098{
6099 WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
6100 WARN(dev_priv->pc8.disable_count < 1,
6101 "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
6102
6103 dev_priv->pc8.disable_count--;
6104 if (dev_priv->pc8.disable_count != 0)
6105 return;
6106
6107 schedule_delayed_work(&dev_priv->pc8.enable_work,
90058745 6108 msecs_to_jiffies(i915_pc8_timeout));
c67a470b
PZ		 6109}
6110
6111static void __hsw_disable_package_c8(struct drm_i915_private *dev_priv)
6112{
6113 struct drm_device *dev = dev_priv->dev;
6114 uint32_t val;
6115
6116 WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
6117 WARN(dev_priv->pc8.disable_count < 0,
6118 "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
6119
6120 dev_priv->pc8.disable_count++;
6121 if (dev_priv->pc8.disable_count != 1)
6122 return;
6123
6124 cancel_delayed_work_sync(&dev_priv->pc8.enable_work);
6125 if (!dev_priv->pc8.enabled)
6126 return;
6127
6128 DRM_DEBUG_KMS("Disabling package C8+\n");
6129
6130 hsw_restore_lcpll(dev_priv);
6131 hsw_pc8_restore_interrupts(dev);
6132 lpt_init_pch_refclk(dev);
6133
6134 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
6135 val = I915_READ(SOUTH_DSPCLK_GATE_D);
6136 val |= PCH_LP_PARTITION_LEVEL_DISABLE;
6137 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
6138 }
6139
6140 intel_prepare_ddi(dev);
6141 i915_gem_init_swizzling(dev);
6142 mutex_lock(&dev_priv->rps.hw_lock);
6143 gen6_update_ring_freq(dev);
6144 mutex_unlock(&dev_priv->rps.hw_lock);
6145 dev_priv->pc8.enabled = false;
6146}
6147
6148void hsw_enable_package_c8(struct drm_i915_private *dev_priv)
6149{
6150 mutex_lock(&dev_priv->pc8.lock);
6151 __hsw_enable_package_c8(dev_priv);
6152 mutex_unlock(&dev_priv->pc8.lock);
6153}
6154
6155void hsw_disable_package_c8(struct drm_i915_private *dev_priv)
6156{
6157 mutex_lock(&dev_priv->pc8.lock);
6158 __hsw_disable_package_c8(dev_priv);
6159 mutex_unlock(&dev_priv->pc8.lock);
6160}
6161
6162static bool hsw_can_enable_package_c8(struct drm_i915_private *dev_priv)
6163{
6164 struct drm_device *dev = dev_priv->dev;
6165 struct intel_crtc *crtc;
6166 uint32_t val;
6167
6168 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
6169 if (crtc->base.enabled)
6170 return false;
6171
6172 /* This case is still possible since we have the i915.disable_power_well
6173 * parameter and also the KVMr or something else might be requesting the
6174 * power well. */
6175 val = I915_READ(HSW_PWR_WELL_DRIVER);
6176 if (val != 0) {
6177 DRM_DEBUG_KMS("Not enabling PC8: power well on\n");
6178 return false;
6179 }
6180
6181 return true;
6182}
6183
6184/* Since we're called from modeset_global_resources there's no way to
6185 * symmetrically increase and decrease the refcount, so we use
6186 * dev_priv->pc8.requirements_met to track whether we already have the refcount
6187 * or not.
6188 */
6189static void hsw_update_package_c8(struct drm_device *dev)
6190{
6191 struct drm_i915_private *dev_priv = dev->dev_private;
6192 bool allow;
6193
6194 if (!i915_enable_pc8)
6195 return;
6196
6197 mutex_lock(&dev_priv->pc8.lock);
6198
6199 allow = hsw_can_enable_package_c8(dev_priv);
6200
6201 if (allow == dev_priv->pc8.requirements_met)
6202 goto done;
6203
6204 dev_priv->pc8.requirements_met = allow;
6205
6206 if (allow)
6207 __hsw_enable_package_c8(dev_priv);
6208 else
6209 __hsw_disable_package_c8(dev_priv);
6210
6211done:
6212 mutex_unlock(&dev_priv->pc8.lock);
6213}
6214
6215static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv)
6216{
6217 if (!dev_priv->pc8.gpu_idle) {
6218 dev_priv->pc8.gpu_idle = true;
6219 hsw_enable_package_c8(dev_priv);
6220 }
6221}
6222
6223static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv)
6224{
6225 if (dev_priv->pc8.gpu_idle) {
6226 dev_priv->pc8.gpu_idle = false;
6227 hsw_disable_package_c8(dev_priv);
6228 }
be256dc7
PZ		 6229}
6230
d6dd9eb1
DV		 6231static void haswell_modeset_global_resources(struct drm_device *dev)
6232{
d6dd9eb1
DV		 6233 bool enable = false;
6234 struct intel_crtc *crtc;
d6dd9eb1
DV		 6235
6236 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
e7a639c4
DV		 6237 if (!crtc->base.enabled)
6238 continue;
d6dd9eb1 6239
fd4daa9c 6240 if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.enabled ||
e7a639c4 6241 crtc->config.cpu_transcoder != TRANSCODER_EDP)
d6dd9eb1
DV		 6242 enable = true;
6243 }
6244
d6dd9eb1 6245 intel_set_power_well(dev, enable);
c67a470b
PZ		 6246
6247 hsw_update_package_c8(dev);
d6dd9eb1
DV		 6248}
6249
09b4ddf9 6250static int haswell_crtc_mode_set(struct drm_crtc *crtc,
09b4ddf9
PZ		 6251 int x, int y,
6252 struct drm_framebuffer *fb)
6253{
6254 struct drm_device *dev = crtc->dev;
6255 struct drm_i915_private *dev_priv = dev->dev_private;
6256 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
09b4ddf9 6257 int plane = intel_crtc->plane;
09b4ddf9 6258 int ret;
09b4ddf9 6259
ff9a6750 6260 if (!intel_ddi_pll_mode_set(crtc))
6441ab5f
PZ		 6261 return -EINVAL;
6262
09b4ddf9
PZ		 6263 /* Ensure that the cursor is valid for the new mode before changing... */
6264 intel_crtc_update_cursor(crtc, true);
6265
03afc4a2
DV		 6266 if (intel_crtc->config.has_dp_encoder)
6267 intel_dp_set_m_n(intel_crtc);
09b4ddf9
PZ		 6268
6269 intel_crtc->lowfreq_avail = false;
09b4ddf9 6270
8a654f3b 6271 intel_set_pipe_timings(intel_crtc);
09b4ddf9 6272
ca3a0ff8 6273 if (intel_crtc->config.has_pch_encoder) {
ca3a0ff8
DV		 6274 intel_cpu_transcoder_set_m_n(intel_crtc,
6275 &intel_crtc->config.fdi_m_n);
6276 }
09b4ddf9 6277
6ff93609 6278 haswell_set_pipeconf(crtc);
09b4ddf9 6279
50f3b016 6280 intel_set_pipe_csc(crtc);
86d3efce 6281
09b4ddf9 6282 /* Set up the display plane register */
86d3efce 6283 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
09b4ddf9
PZ		 6284 POSTING_READ(DSPCNTR(plane));
6285
6286 ret = intel_pipe_set_base(crtc, x, y, fb);
6287
6288 intel_update_watermarks(dev);
6289
1f803ee5 6290 return ret;
79e53945
JB		 6291}
6292
0e8ffe1b
DV		 6293static bool haswell_get_pipe_config(struct intel_crtc *crtc,
6294 struct intel_crtc_config *pipe_config)
6295{
6296 struct drm_device *dev = crtc->base.dev;
6297 struct drm_i915_private *dev_priv = dev->dev_private;
2fa2fe9a 6298 enum intel_display_power_domain pfit_domain;
0e8ffe1b
DV		 6299 uint32_t tmp;
6300
e143a21c 6301 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
c0d43d62
DV		 6302 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
6303
eccb140b
DV		 6304 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
6305 if (tmp & TRANS_DDI_FUNC_ENABLE) {
6306 enum pipe trans_edp_pipe;
6307 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
6308 default:
6309 WARN(1, "unknown pipe linked to edp transcoder\n");
6310 case TRANS_DDI_EDP_INPUT_A_ONOFF:
6311 case TRANS_DDI_EDP_INPUT_A_ON:
6312 trans_edp_pipe = PIPE_A;
6313 break;
6314 case TRANS_DDI_EDP_INPUT_B_ONOFF:
6315 trans_edp_pipe = PIPE_B;
6316 break;
6317 case TRANS_DDI_EDP_INPUT_C_ONOFF:
6318 trans_edp_pipe = PIPE_C;
6319 break;
6320 }
6321
6322 if (trans_edp_pipe == crtc->pipe)
6323 pipe_config->cpu_transcoder = TRANSCODER_EDP;
6324 }
6325
b97186f0 6326 if (!intel_display_power_enabled(dev,
eccb140b 6327 POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder)))
2bfce950
PZ		 6328 return false;
6329
eccb140b 6330 tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder));
0e8ffe1b
DV		 6331 if (!(tmp & PIPECONF_ENABLE))
6332 return false;
6333
88adfff1 6334 /*
f196e6be 6335 * Haswell has only FDI/PCH transcoder A. It is which is connected to
88adfff1
DV		 6336 * DDI E. So just check whether this pipe is wired to DDI E and whether
6337 * the PCH transcoder is on.
6338 */
eccb140b 6339 tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
88adfff1 6340 if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
ab9412ba 6341 I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
88adfff1
DV		 6342 pipe_config->has_pch_encoder = true;
6343
627eb5a3
DV		 6344 tmp = I915_READ(FDI_RX_CTL(PIPE_A));
6345 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
6346 FDI_DP_PORT_WIDTH_SHIFT) + 1;
72419203
DV		 6347
6348 ironlake_get_fdi_m_n_config(crtc, pipe_config);
627eb5a3
DV		 6349 }
6350
1bd1bd80
DV		 6351 intel_get_pipe_timings(crtc, pipe_config);
6352
2fa2fe9a
DV		 6353 pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
6354 if (intel_display_power_enabled(dev, pfit_domain))
6355 ironlake_get_pfit_config(crtc, pipe_config);
88adfff1 6356
42db64ef
PZ		 6357 pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) &&
6358 (I915_READ(IPS_CTL) & IPS_ENABLE);
6359
6c49f241
DV		 6360 pipe_config->pixel_multiplier = 1;
6361
0e8ffe1b
DV		 6362 return true;
6363}
6364
f564048e 6365static int intel_crtc_mode_set(struct drm_crtc *crtc,
f564048e 6366 int x, int y,
94352cf9 6367 struct drm_framebuffer *fb)
f564048e
EA		 6368{
6369 struct drm_device *dev = crtc->dev;
6370 struct drm_i915_private *dev_priv = dev->dev_private;
9256aa19 6371 struct intel_encoder *encoder;
0b701d27 6372 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
b8cecdf5 6373 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
0b701d27 6374 int pipe = intel_crtc->pipe;
f564048e
EA		 6375 int ret;
6376
0b701d27 6377 drm_vblank_pre_modeset(dev, pipe);
7662c8bd 6378
b8cecdf5
DV		 6379 ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
6380
79e53945 6381 drm_vblank_post_modeset(dev, pipe);
5c3b82e2 6382
9256aa19
DV		 6383 if (ret != 0)
6384 return ret;
6385
6386 for_each_encoder_on_crtc(dev, crtc, encoder) {
6387 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
6388 encoder->base.base.id,
6389 drm_get_encoder_name(&encoder->base),
6390 mode->base.id, mode->name);
36f2d1f1 6391 encoder->mode_set(encoder);
9256aa19
DV		 6392 }
6393
6394 return 0;
79e53945
JB		 6395}
6396
3a9627f4
WF		 6397static bool intel_eld_uptodate(struct drm_connector *connector,
6398 int reg_eldv, uint32_t bits_eldv,
6399 int reg_elda, uint32_t bits_elda,
6400 int reg_edid)
6401{
6402 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6403 uint8_t *eld = connector->eld;
6404 uint32_t i;
6405
6406 i = I915_READ(reg_eldv);
6407 i &= bits_eldv;
6408
6409 if (!eld[0])
6410 return !i;
6411
6412 if (!i)
6413 return false;
6414
6415 i = I915_READ(reg_elda);
6416 i &= ~bits_elda;
6417 I915_WRITE(reg_elda, i);
6418
6419 for (i = 0; i < eld[2]; i++)
6420 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
6421 return false;
6422
6423 return true;
6424}
6425
e0dac65e
WF		 6426static void g4x_write_eld(struct drm_connector *connector,
6427 struct drm_crtc *crtc)
6428{
6429 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6430 uint8_t *eld = connector->eld;
6431 uint32_t eldv;
6432 uint32_t len;
6433 uint32_t i;
6434
6435 i = I915_READ(G4X_AUD_VID_DID);
6436
6437 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
6438 eldv = G4X_ELDV_DEVCL_DEVBLC;
6439 else
6440 eldv = G4X_ELDV_DEVCTG;
6441
3a9627f4
WF		 6442 if (intel_eld_uptodate(connector,
6443 G4X_AUD_CNTL_ST, eldv,
6444 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
6445 G4X_HDMIW_HDMIEDID))
6446 return;
6447
e0dac65e
WF		 6448 i = I915_READ(G4X_AUD_CNTL_ST);
6449 i &= ~(eldv | G4X_ELD_ADDR);
6450 len = (i >> 9) & 0x1f; /* ELD buffer size */
6451 I915_WRITE(G4X_AUD_CNTL_ST, i);
6452
6453 if (!eld[0])
6454 return;
6455
6456 len = min_t(uint8_t, eld[2], len);
6457 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6458 for (i = 0; i < len; i++)
6459 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
6460
6461 i = I915_READ(G4X_AUD_CNTL_ST);
6462 i |= eldv;
6463 I915_WRITE(G4X_AUD_CNTL_ST, i);
6464}
6465
83358c85
WX		 6466static void haswell_write_eld(struct drm_connector *connector,
6467 struct drm_crtc *crtc)
6468{
6469 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6470 uint8_t *eld = connector->eld;
6471 struct drm_device *dev = crtc->dev;
7b9f35a6 6472 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
83358c85
WX		 6473 uint32_t eldv;
6474 uint32_t i;
6475 int len;
6476 int pipe = to_intel_crtc(crtc)->pipe;
6477 int tmp;
6478
6479 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
6480 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
6481 int aud_config = HSW_AUD_CFG(pipe);
6482 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
6483
6484
6485 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
6486
6487 /* Audio output enable */
6488 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
6489 tmp = I915_READ(aud_cntrl_st2);
6490 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
6491 I915_WRITE(aud_cntrl_st2, tmp);
6492
6493 /* Wait for 1 vertical blank */
6494 intel_wait_for_vblank(dev, pipe);
6495
6496 /* Set ELD valid state */
6497 tmp = I915_READ(aud_cntrl_st2);
6498 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp);
6499 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
6500 I915_WRITE(aud_cntrl_st2, tmp);
6501 tmp = I915_READ(aud_cntrl_st2);
6502 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp);
6503
6504 /* Enable HDMI mode */
6505 tmp = I915_READ(aud_config);
6506 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp);
6507 /* clear N_programing_enable and N_value_index */
6508 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
6509 I915_WRITE(aud_config, tmp);
6510
6511 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6512
6513 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
7b9f35a6 6514 intel_crtc->eld_vld = true;
83358c85
WX		 6515
6516 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6517 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6518 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6519 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6520 } else
6521 I915_WRITE(aud_config, 0);
6522
6523 if (intel_eld_uptodate(connector,
6524 aud_cntrl_st2, eldv,
6525 aud_cntl_st, IBX_ELD_ADDRESS,
6526 hdmiw_hdmiedid))
6527 return;
6528
6529 i = I915_READ(aud_cntrl_st2);
6530 i &= ~eldv;
6531 I915_WRITE(aud_cntrl_st2, i);
6532
6533 if (!eld[0])
6534 return;
6535
6536 i = I915_READ(aud_cntl_st);
6537 i &= ~IBX_ELD_ADDRESS;
6538 I915_WRITE(aud_cntl_st, i);
6539 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6540 DRM_DEBUG_DRIVER("port num:%d\n", i);
6541
6542 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6543 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6544 for (i = 0; i < len; i++)
6545 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6546
6547 i = I915_READ(aud_cntrl_st2);
6548 i |= eldv;
6549 I915_WRITE(aud_cntrl_st2, i);
6550
6551}
6552
e0dac65e
WF		 6553static void ironlake_write_eld(struct drm_connector *connector,
6554 struct drm_crtc *crtc)
6555{
6556 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6557 uint8_t *eld = connector->eld;
6558 uint32_t eldv;
6559 uint32_t i;
6560 int len;
6561 int hdmiw_hdmiedid;
b6daa025 6562 int aud_config;
e0dac65e
WF		 6563 int aud_cntl_st;
6564 int aud_cntrl_st2;
9b138a83 6565 int pipe = to_intel_crtc(crtc)->pipe;
e0dac65e 6566
b3f33cbf 6567 if (HAS_PCH_IBX(connector->dev)) {
9b138a83
WX		 6568 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
6569 aud_config = IBX_AUD_CFG(pipe);
6570 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
1202b4c6 6571 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
e0dac65e 6572 } else {
9b138a83
WX		 6573 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
6574 aud_config = CPT_AUD_CFG(pipe);
6575 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
1202b4c6 6576 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
e0dac65e
WF		 6577 }
6578
9b138a83 6579 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
e0dac65e
WF		 6580
6581 i = I915_READ(aud_cntl_st);
9b138a83 6582 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
e0dac65e
WF		 6583 if (!i) {
6584 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
6585 /* operate blindly on all ports */
1202b4c6
WF		 6586 eldv = IBX_ELD_VALIDB;
6587 eldv |= IBX_ELD_VALIDB << 4;
6588 eldv |= IBX_ELD_VALIDB << 8;
e0dac65e 6589 } else {
2582a850 6590 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i));
1202b4c6 6591 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
e0dac65e
WF		 6592 }
6593
3a9627f4
WF		 6594 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6595 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6596 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
b6daa025
WF		 6597 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6598 } else
6599 I915_WRITE(aud_config, 0);
e0dac65e 6600
3a9627f4
WF		 6601 if (intel_eld_uptodate(connector,
6602 aud_cntrl_st2, eldv,
6603 aud_cntl_st, IBX_ELD_ADDRESS,
6604 hdmiw_hdmiedid))
6605 return;
6606
e0dac65e
WF		 6607 i = I915_READ(aud_cntrl_st2);
6608 i &= ~eldv;
6609 I915_WRITE(aud_cntrl_st2, i);
6610
6611 if (!eld[0])
6612 return;
6613
e0dac65e 6614 i = I915_READ(aud_cntl_st);
1202b4c6 6615 i &= ~IBX_ELD_ADDRESS;
e0dac65e
WF		 6616 I915_WRITE(aud_cntl_st, i);
6617
6618 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6619 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6620 for (i = 0; i < len; i++)
6621 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6622
6623 i = I915_READ(aud_cntrl_st2);
6624 i |= eldv;
6625 I915_WRITE(aud_cntrl_st2, i);
6626}
6627
6628void intel_write_eld(struct drm_encoder *encoder,
6629 struct drm_display_mode *mode)
6630{
6631 struct drm_crtc *crtc = encoder->crtc;
6632 struct drm_connector *connector;
6633 struct drm_device *dev = encoder->dev;
6634 struct drm_i915_private *dev_priv = dev->dev_private;
6635
6636 connector = drm_select_eld(encoder, mode);
6637 if (!connector)
6638 return;
6639
6640 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6641 connector->base.id,
6642 drm_get_connector_name(connector),
6643 connector->encoder->base.id,
6644 drm_get_encoder_name(connector->encoder));
6645
6646 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
6647
6648 if (dev_priv->display.write_eld)
6649 dev_priv->display.write_eld(connector, crtc);
6650}
6651
79e53945
JB		 6652/** Loads the palette/gamma unit for the CRTC with the prepared values */
6653void intel_crtc_load_lut(struct drm_crtc *crtc)
6654{
6655 struct drm_device *dev = crtc->dev;
6656 struct drm_i915_private *dev_priv = dev->dev_private;
6657 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
42db64ef
PZ		 6658 enum pipe pipe = intel_crtc->pipe;
6659 int palreg = PALETTE(pipe);
79e53945 6660 int i;
42db64ef 6661 bool reenable_ips = false;
79e53945
JB		 6662
6663 /* The clocks have to be on to load the palette. */
aed3f09d 6664 if (!crtc->enabled || !intel_crtc->active)
79e53945
JB		 6665 return;
6666
14420bd0
VS		 6667 if (!HAS_PCH_SPLIT(dev_priv->dev))
6668 assert_pll_enabled(dev_priv, pipe);
6669
f2b115e6 6670 /* use legacy palette for Ironlake */
bad720ff 6671 if (HAS_PCH_SPLIT(dev))
42db64ef
PZ		 6672 palreg = LGC_PALETTE(pipe);
6673
6674 /* Workaround : Do not read or write the pipe palette/gamma data while
6675 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
6676 */
6677 if (intel_crtc->config.ips_enabled &&
6678 ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) ==
6679 GAMMA_MODE_MODE_SPLIT)) {
6680 hsw_disable_ips(intel_crtc);
6681 reenable_ips = true;
6682 }
2c07245f 6683
79e53945
JB		 6684 for (i = 0; i < 256; i++) {
6685 I915_WRITE(palreg + 4 * i,
6686 (intel_crtc->lut_r[i] << 16) |
6687 (intel_crtc->lut_g[i] << 8) |
6688 intel_crtc->lut_b[i]);
6689 }
42db64ef
PZ		 6690
6691 if (reenable_ips)
6692 hsw_enable_ips(intel_crtc);
79e53945
JB		 6693}
6694
560b85bb
CW		 6695static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
6696{
6697 struct drm_device *dev = crtc->dev;
6698 struct drm_i915_private *dev_priv = dev->dev_private;
6699 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6700 bool visible = base != 0;
6701 u32 cntl;
6702
6703 if (intel_crtc->cursor_visible == visible)
6704 return;
6705
9db4a9c7 6706 cntl = I915_READ(_CURACNTR);
560b85bb
CW		 6707 if (visible) {
6708 /* On these chipsets we can only modify the base whilst
6709 * the cursor is disabled.
6710 */
9db4a9c7 6711 I915_WRITE(_CURABASE, base);
560b85bb
CW		 6712
6713 cntl &= ~(CURSOR_FORMAT_MASK);
6714 /* XXX width must be 64, stride 256 => 0x00 << 28 */
6715 cntl |= CURSOR_ENABLE |
6716 CURSOR_GAMMA_ENABLE |
6717 CURSOR_FORMAT_ARGB;
6718 } else
6719 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
9db4a9c7 6720 I915_WRITE(_CURACNTR, cntl);
560b85bb
CW		 6721
6722 intel_crtc->cursor_visible = visible;
6723}
6724
6725static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
6726{
6727 struct drm_device *dev = crtc->dev;
6728 struct drm_i915_private *dev_priv = dev->dev_private;
6729 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6730 int pipe = intel_crtc->pipe;
6731 bool visible = base != 0;
6732
6733 if (intel_crtc->cursor_visible != visible) {
548f245b 6734 uint32_t cntl = I915_READ(CURCNTR(pipe));
560b85bb
CW		 6735 if (base) {
6736 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
6737 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6738 cntl |= pipe << 28; /* Connect to correct pipe */
6739 } else {
6740 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6741 cntl |= CURSOR_MODE_DISABLE;
6742 }
9db4a9c7 6743 I915_WRITE(CURCNTR(pipe), cntl);
560b85bb
CW		 6744
6745 intel_crtc->cursor_visible = visible;
6746 }
6747 /* and commit changes on next vblank */
9db4a9c7 6748 I915_WRITE(CURBASE(pipe), base);
560b85bb
CW		 6749}
6750
65a21cd6
JB		 6751static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
6752{
6753 struct drm_device *dev = crtc->dev;
6754 struct drm_i915_private *dev_priv = dev->dev_private;
6755 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6756 int pipe = intel_crtc->pipe;
6757 bool visible = base != 0;
6758
6759 if (intel_crtc->cursor_visible != visible) {
6760 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
6761 if (base) {
6762 cntl &= ~CURSOR_MODE;
6763 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6764 } else {
6765 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6766 cntl |= CURSOR_MODE_DISABLE;
6767 }
1f5d76db 6768 if (IS_HASWELL(dev)) {
86d3efce 6769 cntl |= CURSOR_PIPE_CSC_ENABLE;
1f5d76db
PZ		 6770 cntl &= ~CURSOR_TRICKLE_FEED_DISABLE;
6771 }
65a21cd6
JB		 6772 I915_WRITE(CURCNTR_IVB(pipe), cntl);
6773
6774 intel_crtc->cursor_visible = visible;
6775 }
6776 /* and commit changes on next vblank */
6777 I915_WRITE(CURBASE_IVB(pipe), base);
6778}
6779
cda4b7d3 6780/* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
6b383a7f
CW		 6781static void intel_crtc_update_cursor(struct drm_crtc *crtc,
6782 bool on)
cda4b7d3
CW		 6783{
6784 struct drm_device *dev = crtc->dev;
6785 struct drm_i915_private *dev_priv = dev->dev_private;
6786 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6787 int pipe = intel_crtc->pipe;
6788 int x = intel_crtc->cursor_x;
6789 int y = intel_crtc->cursor_y;
560b85bb 6790 u32 base, pos;
cda4b7d3
CW		 6791 bool visible;
6792
6793 pos = 0;
6794
6b383a7f 6795 if (on && crtc->enabled && crtc->fb) {
cda4b7d3
CW		 6796 base = intel_crtc->cursor_addr;
6797 if (x > (int) crtc->fb->width)
6798 base = 0;
6799
6800 if (y > (int) crtc->fb->height)
6801 base = 0;
6802 } else
6803 base = 0;
6804
6805 if (x < 0) {
6806 if (x + intel_crtc->cursor_width < 0)
6807 base = 0;
6808
6809 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
6810 x = -x;
6811 }
6812 pos |= x << CURSOR_X_SHIFT;
6813
6814 if (y < 0) {
6815 if (y + intel_crtc->cursor_height < 0)
6816 base = 0;
6817
6818 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
6819 y = -y;
6820 }
6821 pos |= y << CURSOR_Y_SHIFT;
6822
6823 visible = base != 0;
560b85bb 6824 if (!visible && !intel_crtc->cursor_visible)
cda4b7d3
CW		 6825 return;
6826
0cd83aa9 6827 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
65a21cd6
JB		 6828 I915_WRITE(CURPOS_IVB(pipe), pos);
6829 ivb_update_cursor(crtc, base);
6830 } else {
6831 I915_WRITE(CURPOS(pipe), pos);
6832 if (IS_845G(dev) || IS_I865G(dev))
6833 i845_update_cursor(crtc, base);
6834 else
6835 i9xx_update_cursor(crtc, base);
6836 }
cda4b7d3
CW		 6837}
6838
79e53945 6839static int intel_crtc_cursor_set(struct drm_crtc *crtc,
05394f39 6840 struct drm_file *file,
79e53945
JB		 6841 uint32_t handle,
6842 uint32_t width, uint32_t height)
6843{
6844 struct drm_device *dev = crtc->dev;
6845 struct drm_i915_private *dev_priv = dev->dev_private;
6846 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
05394f39 6847 struct drm_i915_gem_object *obj;
cda4b7d3 6848 uint32_t addr;
3f8bc370 6849 int ret;
79e53945 6850
79e53945
JB		 6851 /* if we want to turn off the cursor ignore width and height */
6852 if (!handle) {
28c97730 6853 DRM_DEBUG_KMS("cursor off\n");
3f8bc370 6854 addr = 0;
05394f39 6855 obj = NULL;
5004417d 6856 mutex_lock(&dev->struct_mutex);
3f8bc370 6857 goto finish;
79e53945
JB		 6858 }
6859
6860 /* Currently we only support 64x64 cursors */
6861 if (width != 64 || height != 64) {
6862 DRM_ERROR("we currently only support 64x64 cursors\n");
6863 return -EINVAL;
6864 }
6865
05394f39 6866 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
c8725226 6867 if (&obj->base == NULL)
79e53945
JB		 6868 return -ENOENT;
6869
05394f39 6870 if (obj->base.size < width * height * 4) {
79e53945 6871 DRM_ERROR("buffer is to small\n");
34b8686e
DA		 6872 ret = -ENOMEM;
6873 goto fail;
79e53945
JB		 6874 }
6875
71acb5eb 6876 /* we only need to pin inside GTT if cursor is non-phy */
7f9872e0 6877 mutex_lock(&dev->struct_mutex);
b295d1b6 6878 if (!dev_priv->info->cursor_needs_physical) {
693db184
CW		 6879 unsigned alignment;
6880
d9e86c0e
CW		 6881 if (obj->tiling_mode) {
6882 DRM_ERROR("cursor cannot be tiled\n");
6883 ret = -EINVAL;
6884 goto fail_locked;
6885 }
6886
693db184
CW		 6887 /* Note that the w/a also requires 2 PTE of padding following
6888 * the bo. We currently fill all unused PTE with the shadow
6889 * page and so we should always have valid PTE following the
6890 * cursor preventing the VT-d warning.
6891 */
6892 alignment = 0;
6893 if (need_vtd_wa(dev))
6894 alignment = 64*1024;
6895
6896 ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
e7b526bb
CW		 6897 if (ret) {
6898 DRM_ERROR("failed to move cursor bo into the GTT\n");
2da3b9b9 6899 goto fail_locked;
e7b526bb
CW		 6900 }
6901
d9e86c0e
CW		 6902 ret = i915_gem_object_put_fence(obj);
6903 if (ret) {
2da3b9b9 6904 DRM_ERROR("failed to release fence for cursor");
d9e86c0e
CW		 6905 goto fail_unpin;
6906 }
6907
f343c5f6 6908 addr = i915_gem_obj_ggtt_offset(obj);
71acb5eb 6909 } else {
6eeefaf3 6910 int align = IS_I830(dev) ? 16 * 1024 : 256;
05394f39 6911 ret = i915_gem_attach_phys_object(dev, obj,
6eeefaf3
CW		 6912 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
6913 align);
71acb5eb
DA		 6914 if (ret) {
6915 DRM_ERROR("failed to attach phys object\n");
7f9872e0 6916 goto fail_locked;
71acb5eb 6917 }
05394f39 6918 addr = obj->phys_obj->handle->busaddr;
3f8bc370
KH		 6919 }
6920
a6c45cf0 6921 if (IS_GEN2(dev))
14b60391
JB		 6922 I915_WRITE(CURSIZE, (height << 12) | width);
6923
3f8bc370 6924 finish:
3f8bc370 6925 if (intel_crtc->cursor_bo) {
b295d1b6 6926 if (dev_priv->info->cursor_needs_physical) {
05394f39 6927 if (intel_crtc->cursor_bo != obj)
71acb5eb
DA		 6928 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
6929 } else
cc98b413 6930 i915_gem_object_unpin_from_display_plane(intel_crtc->cursor_bo);
05394f39 6931 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
3f8bc370 6932 }
80824003 6933
7f9872e0 6934 mutex_unlock(&dev->struct_mutex);
3f8bc370
KH		 6935
6936 intel_crtc->cursor_addr = addr;
05394f39 6937 intel_crtc->cursor_bo = obj;
cda4b7d3
CW		 6938 intel_crtc->cursor_width = width;
6939 intel_crtc->cursor_height = height;
6940
40ccc72b 6941 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
3f8bc370 6942
79e53945 6943 return 0;
e7b526bb 6944fail_unpin:
cc98b413 6945 i915_gem_object_unpin_from_display_plane(obj);
7f9872e0 6946fail_locked:
34b8686e 6947 mutex_unlock(&dev->struct_mutex);
bc9025bd 6948fail:
05394f39 6949 drm_gem_object_unreference_unlocked(&obj->base);
34b8686e 6950 return ret;
79e53945
JB		 6951}
6952
6953static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
6954{
79e53945 6955 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
79e53945 6956
cda4b7d3
CW		 6957 intel_crtc->cursor_x = x;
6958 intel_crtc->cursor_y = y;
652c393a 6959
40ccc72b 6960 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
79e53945
JB		 6961
6962 return 0;
6963}
6964
6965/** Sets the color ramps on behalf of RandR */
6966void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
6967 u16 blue, int regno)
6968{
6969 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6970
6971 intel_crtc->lut_r[regno] = red >> 8;
6972 intel_crtc->lut_g[regno] = green >> 8;
6973 intel_crtc->lut_b[regno] = blue >> 8;
6974}
6975
b8c00ac5
DA		 6976void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
6977 u16 *blue, int regno)
6978{
6979 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6980
6981 *red = intel_crtc->lut_r[regno] << 8;
6982 *green = intel_crtc->lut_g[regno] << 8;
6983 *blue = intel_crtc->lut_b[regno] << 8;
6984}
6985
79e53945 6986static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
7203425a 6987 u16 *blue, uint32_t start, uint32_t size)
79e53945 6988{
7203425a 6989 int end = (start + size > 256) ? 256 : start + size, i;
79e53945 6990 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
79e53945 6991
7203425a 6992 for (i = start; i < end; i++) {
79e53945
JB		 6993 intel_crtc->lut_r[i] = red[i] >> 8;
6994 intel_crtc->lut_g[i] = green[i] >> 8;
6995 intel_crtc->lut_b[i] = blue[i] >> 8;
6996 }
6997
6998 intel_crtc_load_lut(crtc);
6999}
7000
79e53945
JB		 7001/* VESA 640x480x72Hz mode to set on the pipe */
7002static struct drm_display_mode load_detect_mode = {
7003 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
7004 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
7005};
7006
d2dff872
CW		 7007static struct drm_framebuffer *
7008intel_framebuffer_create(struct drm_device *dev,
308e5bcb 7009 struct drm_mode_fb_cmd2 *mode_cmd,
d2dff872
CW		 7010 struct drm_i915_gem_object *obj)
7011{
7012 struct intel_framebuffer *intel_fb;
7013 int ret;
7014
7015 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
7016 if (!intel_fb) {
7017 drm_gem_object_unreference_unlocked(&obj->base);
7018 return ERR_PTR(-ENOMEM);
7019 }
7020
7021 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
7022 if (ret) {
7023 drm_gem_object_unreference_unlocked(&obj->base);
7024 kfree(intel_fb);
7025 return ERR_PTR(ret);
7026 }
7027
7028 return &intel_fb->base;
7029}
7030
7031static u32
7032intel_framebuffer_pitch_for_width(int width, int bpp)
7033{
7034 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
7035 return ALIGN(pitch, 64);
7036}
7037
7038static u32
7039intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
7040{
7041 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
7042 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
7043}
7044
7045static struct drm_framebuffer *
7046intel_framebuffer_create_for_mode(struct drm_device *dev,
7047 struct drm_display_mode *mode,
7048 int depth, int bpp)
7049{
7050 struct drm_i915_gem_object *obj;
0fed39bd 7051 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
d2dff872
CW		 7052
7053 obj = i915_gem_alloc_object(dev,
7054 intel_framebuffer_size_for_mode(mode, bpp));
7055 if (obj == NULL)
7056 return ERR_PTR(-ENOMEM);
7057
7058 mode_cmd.width = mode->hdisplay;
7059 mode_cmd.height = mode->vdisplay;
308e5bcb
JB		 7060 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
7061 bpp);
5ca0c34a 7062 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
d2dff872
CW		 7063
7064 return intel_framebuffer_create(dev, &mode_cmd, obj);
7065}
7066
7067static struct drm_framebuffer *
7068mode_fits_in_fbdev(struct drm_device *dev,
7069 struct drm_display_mode *mode)
7070{
7071 struct drm_i915_private *dev_priv = dev->dev_private;
7072 struct drm_i915_gem_object *obj;
7073 struct drm_framebuffer *fb;
7074
7075 if (dev_priv->fbdev == NULL)
7076 return NULL;
7077
7078 obj = dev_priv->fbdev->ifb.obj;
7079 if (obj == NULL)
7080 return NULL;
7081
7082 fb = &dev_priv->fbdev->ifb.base;
01f2c773
VS		 7083 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
7084 fb->bits_per_pixel))
d2dff872
CW		 7085 return NULL;
7086
01f2c773 7087 if (obj->base.size < mode->vdisplay * fb->pitches[0])
d2dff872
CW		 7088 return NULL;
7089
7090 return fb;
7091}
7092
d2434ab7 7093bool intel_get_load_detect_pipe(struct drm_connector *connector,
7173188d 7094 struct drm_display_mode *mode,
8261b191 7095 struct intel_load_detect_pipe *old)
79e53945
JB		 7096{
7097 struct intel_crtc *intel_crtc;
d2434ab7
DV		 7098 struct intel_encoder *intel_encoder =
7099 intel_attached_encoder(connector);
79e53945 7100 struct drm_crtc *possible_crtc;
4ef69c7a 7101 struct drm_encoder *encoder = &intel_encoder->base;
79e53945
JB		 7102 struct drm_crtc *crtc = NULL;
7103 struct drm_device *dev = encoder->dev;
94352cf9 7104 struct drm_framebuffer *fb;
79e53945
JB		 7105 int i = -1;
7106
d2dff872
CW		 7107 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7108 connector->base.id, drm_get_connector_name(connector),
7109 encoder->base.id, drm_get_encoder_name(encoder));
7110
79e53945
JB		 7111 /*
7112 * Algorithm gets a little messy:
7a5e4805 7113 *
79e53945
JB		 7114 * - if the connector already has an assigned crtc, use it (but make
7115 * sure it's on first)
7a5e4805 7116 *
79e53945
JB		 7117 * - try to find the first unused crtc that can drive this connector,
7118 * and use that if we find one
79e53945
JB		 7119 */
7120
7121 /* See if we already have a CRTC for this connector */
7122 if (encoder->crtc) {
7123 crtc = encoder->crtc;
8261b191 7124
7b24056b
DV		 7125 mutex_lock(&crtc->mutex);
7126
24218aac 7127 old->dpms_mode = connector->dpms;
8261b191
CW		 7128 old->load_detect_temp = false;
7129
7130 /* Make sure the crtc and connector are running */
24218aac
DV		 7131 if (connector->dpms != DRM_MODE_DPMS_ON)
7132 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
8261b191 7133
7173188d 7134 return true;
79e53945
JB		 7135 }
7136
7137 /* Find an unused one (if possible) */
7138 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
7139 i++;
7140 if (!(encoder->possible_crtcs & (1 << i)))
7141 continue;
7142 if (!possible_crtc->enabled) {
7143 crtc = possible_crtc;
7144 break;
7145 }
79e53945
JB		 7146 }
7147
7148 /*
7149 * If we didn't find an unused CRTC, don't use any.
7150 */
7151 if (!crtc) {
7173188d
CW		 7152 DRM_DEBUG_KMS("no pipe available for load-detect\n");
7153 return false;
79e53945
JB		 7154 }
7155
7b24056b 7156 mutex_lock(&crtc->mutex);
fc303101
DV		 7157 intel_encoder->new_crtc = to_intel_crtc(crtc);
7158 to_intel_connector(connector)->new_encoder = intel_encoder;
79e53945
JB		 7159
7160 intel_crtc = to_intel_crtc(crtc);
24218aac 7161 old->dpms_mode = connector->dpms;
8261b191 7162 old->load_detect_temp = true;
d2dff872 7163 old->release_fb = NULL;
79e53945 7164
6492711d
CW		 7165 if (!mode)
7166 mode = &load_detect_mode;
79e53945 7167
d2dff872
CW		 7168 /* We need a framebuffer large enough to accommodate all accesses
7169 * that the plane may generate whilst we perform load detection.
7170 * We can not rely on the fbcon either being present (we get called
7171 * during its initialisation to detect all boot displays, or it may
7172 * not even exist) or that it is large enough to satisfy the
7173 * requested mode.
7174 */
94352cf9
DV		 7175 fb = mode_fits_in_fbdev(dev, mode);
7176 if (fb == NULL) {
d2dff872 7177 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
94352cf9
DV		 7178 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
7179 old->release_fb = fb;
d2dff872
CW		 7180 } else
7181 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
94352cf9 7182 if (IS_ERR(fb)) {
d2dff872 7183 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
7b24056b 7184 mutex_unlock(&crtc->mutex);
0e8b3d3e 7185 return false;
79e53945 7186 }
79e53945 7187
c0c36b94 7188 if (intel_set_mode(crtc, mode, 0, 0, fb)) {
6492711d 7189 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
d2dff872
CW		 7190 if (old->release_fb)
7191 old->release_fb->funcs->destroy(old->release_fb);
7b24056b 7192 mutex_unlock(&crtc->mutex);
0e8b3d3e 7193 return false;
79e53945 7194 }
7173188d 7195
79e53945 7196 /* let the connector get through one full cycle before testing */
9d0498a2 7197 intel_wait_for_vblank(dev, intel_crtc->pipe);
7173188d 7198 return true;
79e53945
JB		 7199}
7200
d2434ab7 7201void intel_release_load_detect_pipe(struct drm_connector *connector,
8261b191 7202 struct intel_load_detect_pipe *old)
79e53945 7203{
d2434ab7
DV		 7204 struct intel_encoder *intel_encoder =
7205 intel_attached_encoder(connector);
4ef69c7a 7206 struct drm_encoder *encoder = &intel_encoder->base;
7b24056b 7207 struct drm_crtc *crtc = encoder->crtc;
79e53945 7208
d2dff872
CW		 7209 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7210 connector->base.id, drm_get_connector_name(connector),
7211 encoder->base.id, drm_get_encoder_name(encoder));
7212
8261b191 7213 if (old->load_detect_temp) {
fc303101
DV		 7214 to_intel_connector(connector)->new_encoder = NULL;
7215 intel_encoder->new_crtc = NULL;
7216 intel_set_mode(crtc, NULL, 0, 0, NULL);
d2dff872 7217
36206361
DV		 7218 if (old->release_fb) {
7219 drm_framebuffer_unregister_private(old->release_fb);
7220 drm_framebuffer_unreference(old->release_fb);
7221 }
d2dff872 7222
67c96400 7223 mutex_unlock(&crtc->mutex);
0622a53c 7224 return;
79e53945
JB		 7225 }
7226
c751ce4f 7227 /* Switch crtc and encoder back off if necessary */
24218aac
DV		 7228 if (old->dpms_mode != DRM_MODE_DPMS_ON)
7229 connector->funcs->dpms(connector, old->dpms_mode);
7b24056b
DV		 7230
7231 mutex_unlock(&crtc->mutex);
79e53945
JB		 7232}
7233
7234/* Returns the clock of the currently programmed mode of the given pipe. */
f1f644dc
JB		 7235static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
7236 struct intel_crtc_config *pipe_config)
79e53945 7237{
f1f644dc 7238 struct drm_device *dev = crtc->base.dev;
79e53945 7239 struct drm_i915_private *dev_priv = dev->dev_private;
f1f644dc 7240 int pipe = pipe_config->cpu_transcoder;
548f245b 7241 u32 dpll = I915_READ(DPLL(pipe));
79e53945
JB		 7242 u32 fp;
7243 intel_clock_t clock;
7244
7245 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
39adb7a5 7246 fp = I915_READ(FP0(pipe));
79e53945 7247 else
39adb7a5 7248 fp = I915_READ(FP1(pipe));
79e53945
JB		 7249
7250 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
f2b115e6
AJ		 7251 if (IS_PINEVIEW(dev)) {
7252 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
7253 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
2177832f
SL		 7254 } else {
7255 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
7256 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
7257 }
7258
a6c45cf0 7259 if (!IS_GEN2(dev)) {
f2b115e6
AJ		 7260 if (IS_PINEVIEW(dev))
7261 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
7262 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
2177832f
SL		 7263 else
7264 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
79e53945
JB		 7265 DPLL_FPA01_P1_POST_DIV_SHIFT);
7266
7267 switch (dpll & DPLL_MODE_MASK) {
7268 case DPLLB_MODE_DAC_SERIAL:
7269 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
7270 5 : 10;
7271 break;
7272 case DPLLB_MODE_LVDS:
7273 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
7274 7 : 14;
7275 break;
7276 default:
28c97730 7277 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
79e53945 7278 "mode\n", (int)(dpll & DPLL_MODE_MASK));
f1f644dc
JB		 7279 pipe_config->adjusted_mode.clock = 0;
7280 return;
79e53945
JB		 7281 }
7282
ac58c3f0
DV		 7283 if (IS_PINEVIEW(dev))
7284 pineview_clock(96000, &clock);
7285 else
7286 i9xx_clock(96000, &clock);
79e53945
JB		 7287 } else {
7288 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
7289
7290 if (is_lvds) {
7291 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
7292 DPLL_FPA01_P1_POST_DIV_SHIFT);
7293 clock.p2 = 14;
7294
7295 if ((dpll & PLL_REF_INPUT_MASK) ==
7296 PLLB_REF_INPUT_SPREADSPECTRUMIN) {
7297 /* XXX: might not be 66MHz */
ac58c3f0 7298 i9xx_clock(66000, &clock);
79e53945 7299 } else
ac58c3f0 7300 i9xx_clock(48000, &clock);
79e53945
JB		 7301 } else {
7302 if (dpll & PLL_P1_DIVIDE_BY_TWO)
7303 clock.p1 = 2;
7304 else {
7305 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
7306 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
7307 }
7308 if (dpll & PLL_P2_DIVIDE_BY_4)
7309 clock.p2 = 4;
7310 else
7311 clock.p2 = 2;
7312
ac58c3f0 7313 i9xx_clock(48000, &clock);
79e53945
JB		 7314 }
7315 }
7316
a2dc53e7 7317 pipe_config->adjusted_mode.clock = clock.dot;
f1f644dc
JB		 7318}
7319
7320static void ironlake_crtc_clock_get(struct intel_crtc *crtc,
7321 struct intel_crtc_config *pipe_config)
7322{
7323 struct drm_device *dev = crtc->base.dev;
7324 struct drm_i915_private *dev_priv = dev->dev_private;
7325 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
7326 int link_freq, repeat;
7327 u64 clock;
7328 u32 link_m, link_n;
7329
7330 repeat = pipe_config->pixel_multiplier;
7331
7332 /*
7333 * The calculation for the data clock is:
7334 * pixel_clock = ((m/n)*(link_clock * nr_lanes * repeat))/bpp
7335 * But we want to avoid losing precison if possible, so:
7336 * pixel_clock = ((m * link_clock * nr_lanes * repeat)/(n*bpp))
7337 *
7338 * and the link clock is simpler:
7339 * link_clock = (m * link_clock * repeat) / n
7340 */
7341
7342 /*
7343 * We need to get the FDI or DP link clock here to derive
7344 * the M/N dividers.
7345 *
7346 * For FDI, we read it from the BIOS or use a fixed 2.7GHz.
7347 * For DP, it's either 1.62GHz or 2.7GHz.
7348 * We do our calculations in 10*MHz since we don't need much precison.
79e53945 7349 */
f1f644dc
JB		 7350 if (pipe_config->has_pch_encoder)
7351 link_freq = intel_fdi_link_freq(dev) * 10000;
7352 else
7353 link_freq = pipe_config->port_clock;
7354
7355 link_m = I915_READ(PIPE_LINK_M1(cpu_transcoder));
7356 link_n = I915_READ(PIPE_LINK_N1(cpu_transcoder));
7357
7358 if (!link_m || !link_n)
7359 return;
79e53945 7360
f1f644dc
JB		 7361 clock = ((u64)link_m * (u64)link_freq * (u64)repeat);
7362 do_div(clock, link_n);
7363
7364 pipe_config->adjusted_mode.clock = clock;
79e53945
JB		 7365}
7366
7367/** Returns the currently programmed mode of the given pipe. */
7368struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
7369 struct drm_crtc *crtc)
7370{
548f245b 7371 struct drm_i915_private *dev_priv = dev->dev_private;
79e53945 7372 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 7373 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
79e53945 7374 struct drm_display_mode *mode;
f1f644dc 7375 struct intel_crtc_config pipe_config;
fe2b8f9d
PZ		 7376 int htot = I915_READ(HTOTAL(cpu_transcoder));
7377 int hsync = I915_READ(HSYNC(cpu_transcoder));
7378 int vtot = I915_READ(VTOTAL(cpu_transcoder));
7379 int vsync = I915_READ(VSYNC(cpu_transcoder));
79e53945
JB		 7380
7381 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
7382 if (!mode)
7383 return NULL;
7384
f1f644dc
JB		 7385 /*
7386 * Construct a pipe_config sufficient for getting the clock info
7387 * back out of crtc_clock_get.
7388 *
7389 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
7390 * to use a real value here instead.
7391 */
e143a21c 7392 pipe_config.cpu_transcoder = (enum transcoder) intel_crtc->pipe;
f1f644dc
JB		 7393 pipe_config.pixel_multiplier = 1;
7394 i9xx_crtc_clock_get(intel_crtc, &pipe_config);
7395
7396 mode->clock = pipe_config.adjusted_mode.clock;
79e53945
JB		 7397 mode->hdisplay = (htot & 0xffff) + 1;
7398 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
7399 mode->hsync_start = (hsync & 0xffff) + 1;
7400 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
7401 mode->vdisplay = (vtot & 0xffff) + 1;
7402 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
7403 mode->vsync_start = (vsync & 0xffff) + 1;
7404 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
7405
7406 drm_mode_set_name(mode);
79e53945
JB		 7407
7408 return mode;
7409}
7410
3dec0095 7411static void intel_increase_pllclock(struct drm_crtc *crtc)
652c393a
JB		 7412{
7413 struct drm_device *dev = crtc->dev;
7414 drm_i915_private_t *dev_priv = dev->dev_private;
7415 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7416 int pipe = intel_crtc->pipe;
dbdc6479
JB		 7417 int dpll_reg = DPLL(pipe);
7418 int dpll;
652c393a 7419
bad720ff 7420 if (HAS_PCH_SPLIT(dev))
652c393a
JB		 7421 return;
7422
7423 if (!dev_priv->lvds_downclock_avail)
7424 return;
7425
dbdc6479 7426 dpll = I915_READ(dpll_reg);
652c393a 7427 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
44d98a61 7428 DRM_DEBUG_DRIVER("upclocking LVDS\n");
652c393a 7429
8ac5a6d5 7430 assert_panel_unlocked(dev_priv, pipe);
652c393a
JB		 7431
7432 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
7433 I915_WRITE(dpll_reg, dpll);
9d0498a2 7434 intel_wait_for_vblank(dev, pipe);
dbdc6479 7435
652c393a
JB		 7436 dpll = I915_READ(dpll_reg);
7437 if (dpll & DISPLAY_RATE_SELECT_FPA1)
44d98a61 7438 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
652c393a 7439 }
652c393a
JB		 7440}
7441
7442static void intel_decrease_pllclock(struct drm_crtc *crtc)
7443{
7444 struct drm_device *dev = crtc->dev;
7445 drm_i915_private_t *dev_priv = dev->dev_private;
7446 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
652c393a 7447
bad720ff 7448 if (HAS_PCH_SPLIT(dev))
652c393a
JB		 7449 return;
7450
7451 if (!dev_priv->lvds_downclock_avail)
7452 return;
7453
7454 /*
7455 * Since this is called by a timer, we should never get here in
7456 * the manual case.
7457 */
7458 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
dc257cf1
DV		 7459 int pipe = intel_crtc->pipe;
7460 int dpll_reg = DPLL(pipe);
7461 int dpll;
f6e5b160 7462
44d98a61 7463 DRM_DEBUG_DRIVER("downclocking LVDS\n");
652c393a 7464
8ac5a6d5 7465 assert_panel_unlocked(dev_priv, pipe);
652c393a 7466
dc257cf1 7467 dpll = I915_READ(dpll_reg);
652c393a
JB		 7468 dpll |= DISPLAY_RATE_SELECT_FPA1;
7469 I915_WRITE(dpll_reg, dpll);
9d0498a2 7470 intel_wait_for_vblank(dev, pipe);
652c393a
JB		 7471 dpll = I915_READ(dpll_reg);
7472 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
44d98a61 7473 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
652c393a
JB		 7474 }
7475
7476}
7477
f047e395
CW		 7478void intel_mark_busy(struct drm_device *dev)
7479{
c67a470b
PZ		 7480 struct drm_i915_private *dev_priv = dev->dev_private;
7481
7482 hsw_package_c8_gpu_busy(dev_priv);
7483 i915_update_gfx_val(dev_priv);
f047e395
CW		 7484}
7485
7486void intel_mark_idle(struct drm_device *dev)
652c393a 7487{
c67a470b 7488 struct drm_i915_private *dev_priv = dev->dev_private;
652c393a 7489 struct drm_crtc *crtc;
652c393a 7490
c67a470b
PZ		 7491 hsw_package_c8_gpu_idle(dev_priv);
7492
652c393a
JB		 7493 if (!i915_powersave)
7494 return;
7495
652c393a 7496 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
652c393a
JB		 7497 if (!crtc->fb)
7498 continue;
7499
725a5b54 7500 intel_decrease_pllclock(crtc);
652c393a 7501 }
652c393a
JB		 7502}
7503
c65355bb
CW		 7504void intel_mark_fb_busy(struct drm_i915_gem_object *obj,
7505 struct intel_ring_buffer *ring)
652c393a 7506{
f047e395
CW		 7507 struct drm_device *dev = obj->base.dev;
7508 struct drm_crtc *crtc;
652c393a 7509
f047e395 7510 if (!i915_powersave)
acb87dfb
CW		 7511 return;
7512
652c393a
JB		 7513 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7514 if (!crtc->fb)
7515 continue;
7516
c65355bb
CW		 7517 if (to_intel_framebuffer(crtc->fb)->obj != obj)
7518 continue;
7519
7520 intel_increase_pllclock(crtc);
7521 if (ring && intel_fbc_enabled(dev))
7522 ring->fbc_dirty = true;
652c393a
JB		 7523 }
7524}
7525
79e53945
JB		 7526static void intel_crtc_destroy(struct drm_crtc *crtc)
7527{
7528 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
67e77c5a
DV		 7529 struct drm_device *dev = crtc->dev;
7530 struct intel_unpin_work *work;
7531 unsigned long flags;
7532
7533 spin_lock_irqsave(&dev->event_lock, flags);
7534 work = intel_crtc->unpin_work;
7535 intel_crtc->unpin_work = NULL;
7536 spin_unlock_irqrestore(&dev->event_lock, flags);
7537
7538 if (work) {
7539 cancel_work_sync(&work->work);
7540 kfree(work);
7541 }
79e53945 7542
40ccc72b
MK		 7543 intel_crtc_cursor_set(crtc, NULL, 0, 0, 0);
7544
79e53945 7545 drm_crtc_cleanup(crtc);
67e77c5a 7546
79e53945
JB		 7547 kfree(intel_crtc);
7548}
7549
6b95a207
KH		 7550static void intel_unpin_work_fn(struct work_struct *__work)
7551{
7552 struct intel_unpin_work *work =
7553 container_of(__work, struct intel_unpin_work, work);
b4a98e57 7554 struct drm_device *dev = work->crtc->dev;
6b95a207 7555
b4a98e57 7556 mutex_lock(&dev->struct_mutex);
1690e1eb 7557 intel_unpin_fb_obj(work->old_fb_obj);
05394f39
CW		 7558 drm_gem_object_unreference(&work->pending_flip_obj->base);
7559 drm_gem_object_unreference(&work->old_fb_obj->base);
d9e86c0e 7560
b4a98e57
CW		 7561 intel_update_fbc(dev);
7562 mutex_unlock(&dev->struct_mutex);
7563
7564 BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
7565 atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
7566
6b95a207
KH		 7567 kfree(work);
7568}
7569
1afe3e9d 7570static void do_intel_finish_page_flip(struct drm_device *dev,
49b14a5c 7571 struct drm_crtc *crtc)
6b95a207
KH		 7572{
7573 drm_i915_private_t *dev_priv = dev->dev_private;
6b95a207
KH		 7574 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7575 struct intel_unpin_work *work;
6b95a207
KH		 7576 unsigned long flags;
7577
7578 /* Ignore early vblank irqs */
7579 if (intel_crtc == NULL)
7580 return;
7581
7582 spin_lock_irqsave(&dev->event_lock, flags);
7583 work = intel_crtc->unpin_work;
e7d841ca
CW		 7584
7585 /* Ensure we don't miss a work->pending update ... */
7586 smp_rmb();
7587
7588 if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
6b95a207
KH		 7589 spin_unlock_irqrestore(&dev->event_lock, flags);
7590 return;
7591 }
7592
e7d841ca
CW		 7593 /* and that the unpin work is consistent wrt ->pending. */
7594 smp_rmb();
7595
6b95a207 7596 intel_crtc->unpin_work = NULL;
6b95a207 7597
45a066eb
RC		 7598 if (work->event)
7599 drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
6b95a207 7600
0af7e4df
MK		 7601 drm_vblank_put(dev, intel_crtc->pipe);
7602
6b95a207
KH		 7603 spin_unlock_irqrestore(&dev->event_lock, flags);
7604
2c10d571 7605 wake_up_all(&dev_priv->pending_flip_queue);
b4a98e57
CW		 7606
7607 queue_work(dev_priv->wq, &work->work);
e5510fac
JB		 7608
7609 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
6b95a207
KH		 7610}
7611
1afe3e9d
JB		 7612void intel_finish_page_flip(struct drm_device *dev, int pipe)
7613{
7614 drm_i915_private_t *dev_priv = dev->dev_private;
7615 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
7616
49b14a5c 7617 do_intel_finish_page_flip(dev, crtc);
1afe3e9d
JB		 7618}
7619
7620void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
7621{
7622 drm_i915_private_t *dev_priv = dev->dev_private;
7623 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
7624
49b14a5c 7625 do_intel_finish_page_flip(dev, crtc);
1afe3e9d
JB		 7626}
7627
6b95a207
KH		 7628void intel_prepare_page_flip(struct drm_device *dev, int plane)
7629{
7630 drm_i915_private_t *dev_priv = dev->dev_private;
7631 struct intel_crtc *intel_crtc =
7632 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
7633 unsigned long flags;
7634
e7d841ca
CW		 7635 /* NB: An MMIO update of the plane base pointer will also
7636 * generate a page-flip completion irq, i.e. every modeset
7637 * is also accompanied by a spurious intel_prepare_page_flip().
7638 */
6b95a207 7639 spin_lock_irqsave(&dev->event_lock, flags);
e7d841ca
CW		 7640 if (intel_crtc->unpin_work)
7641 atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
6b95a207
KH		 7642 spin_unlock_irqrestore(&dev->event_lock, flags);
7643}
7644
e7d841ca
CW		 7645inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
7646{
7647 /* Ensure that the work item is consistent when activating it ... */
7648 smp_wmb();
7649 atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
7650 /* and that it is marked active as soon as the irq could fire. */
7651 smp_wmb();
7652}
7653
8c9f3aaf
JB		 7654static int intel_gen2_queue_flip(struct drm_device *dev,
7655 struct drm_crtc *crtc,
7656 struct drm_framebuffer *fb,
ed8d1975
KP		 7657 struct drm_i915_gem_object *obj,
7658 uint32_t flags)
8c9f3aaf
JB		 7659{
7660 struct drm_i915_private *dev_priv = dev->dev_private;
7661 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8c9f3aaf 7662 u32 flip_mask;
6d90c952 7663 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7664 int ret;
7665
6d90c952 7666 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7667 if (ret)
83d4092b 7668 goto err;
8c9f3aaf 7669
6d90c952 7670 ret = intel_ring_begin(ring, 6);
8c9f3aaf 7671 if (ret)
83d4092b 7672 goto err_unpin;
8c9f3aaf
JB		 7673
7674 /* Can't queue multiple flips, so wait for the previous
7675 * one to finish before executing the next.
7676 */
7677 if (intel_crtc->plane)
7678 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7679 else
7680 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
6d90c952
DV		 7681 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7682 intel_ring_emit(ring, MI_NOOP);
7683 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7684 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7685 intel_ring_emit(ring, fb->pitches[0]);
f343c5f6 7686 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
6d90c952 7687 intel_ring_emit(ring, 0); /* aux display base address, unused */
e7d841ca
CW		 7688
7689 intel_mark_page_flip_active(intel_crtc);
6d90c952 7690 intel_ring_advance(ring);
83d4092b
CW		 7691 return 0;
7692
7693err_unpin:
7694 intel_unpin_fb_obj(obj);
7695err:
8c9f3aaf
JB		 7696 return ret;
7697}
7698
7699static int intel_gen3_queue_flip(struct drm_device *dev,
7700 struct drm_crtc *crtc,
7701 struct drm_framebuffer *fb,
ed8d1975
KP		 7702 struct drm_i915_gem_object *obj,
7703 uint32_t flags)
8c9f3aaf
JB		 7704{
7705 struct drm_i915_private *dev_priv = dev->dev_private;
7706 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8c9f3aaf 7707 u32 flip_mask;
6d90c952 7708 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7709 int ret;
7710
6d90c952 7711 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7712 if (ret)
83d4092b 7713 goto err;
8c9f3aaf 7714
6d90c952 7715 ret = intel_ring_begin(ring, 6);
8c9f3aaf 7716 if (ret)
83d4092b 7717 goto err_unpin;
8c9f3aaf
JB		 7718
7719 if (intel_crtc->plane)
7720 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7721 else
7722 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
6d90c952
DV		 7723 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7724 intel_ring_emit(ring, MI_NOOP);
7725 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
7726 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7727 intel_ring_emit(ring, fb->pitches[0]);
f343c5f6 7728 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
6d90c952
DV		 7729 intel_ring_emit(ring, MI_NOOP);
7730
e7d841ca 7731 intel_mark_page_flip_active(intel_crtc);
6d90c952 7732 intel_ring_advance(ring);
83d4092b
CW		 7733 return 0;
7734
7735err_unpin:
7736 intel_unpin_fb_obj(obj);
7737err:
8c9f3aaf
JB		 7738 return ret;
7739}
7740
7741static int intel_gen4_queue_flip(struct drm_device *dev,
7742 struct drm_crtc *crtc,
7743 struct drm_framebuffer *fb,
ed8d1975
KP		 7744 struct drm_i915_gem_object *obj,
7745 uint32_t flags)
8c9f3aaf
JB		 7746{
7747 struct drm_i915_private *dev_priv = dev->dev_private;
7748 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7749 uint32_t pf, pipesrc;
6d90c952 7750 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7751 int ret;
7752
6d90c952 7753 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7754 if (ret)
83d4092b 7755 goto err;
8c9f3aaf 7756
6d90c952 7757 ret = intel_ring_begin(ring, 4);
8c9f3aaf 7758 if (ret)
83d4092b 7759 goto err_unpin;
8c9f3aaf
JB		 7760
7761 /* i965+ uses the linear or tiled offsets from the
7762 * Display Registers (which do not change across a page-flip)
7763 * so we need only reprogram the base address.
7764 */
6d90c952
DV		 7765 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7766 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7767 intel_ring_emit(ring, fb->pitches[0]);
c2c75131 7768 intel_ring_emit(ring,
f343c5f6 7769 (i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset) |
c2c75131 7770 obj->tiling_mode);
8c9f3aaf
JB		 7771
7772 /* XXX Enabling the panel-fitter across page-flip is so far
7773 * untested on non-native modes, so ignore it for now.
7774 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
7775 */
7776 pf = 0;
7777 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
6d90c952 7778 intel_ring_emit(ring, pf | pipesrc);
e7d841ca
CW		 7779
7780 intel_mark_page_flip_active(intel_crtc);
6d90c952 7781 intel_ring_advance(ring);
83d4092b
CW		 7782 return 0;
7783
7784err_unpin:
7785 intel_unpin_fb_obj(obj);
7786err:
8c9f3aaf
JB		 7787 return ret;
7788}
7789
7790static int intel_gen6_queue_flip(struct drm_device *dev,
7791 struct drm_crtc *crtc,
7792 struct drm_framebuffer *fb,
ed8d1975
KP		 7793 struct drm_i915_gem_object *obj,
7794 uint32_t flags)
8c9f3aaf
JB		 7795{
7796 struct drm_i915_private *dev_priv = dev->dev_private;
7797 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6d90c952 7798 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7799 uint32_t pf, pipesrc;
7800 int ret;
7801
6d90c952 7802 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7803 if (ret)
83d4092b 7804 goto err;
8c9f3aaf 7805
6d90c952 7806 ret = intel_ring_begin(ring, 4);
8c9f3aaf 7807 if (ret)
83d4092b 7808 goto err_unpin;
8c9f3aaf 7809
6d90c952
DV		 7810 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7811 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7812 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
f343c5f6 7813 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8c9f3aaf 7814
dc257cf1
DV		 7815 /* Contrary to the suggestions in the documentation,
7816 * "Enable Panel Fitter" does not seem to be required when page
7817 * flipping with a non-native mode, and worse causes a normal
7818 * modeset to fail.
7819 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
7820 */
7821 pf = 0;
8c9f3aaf 7822 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
6d90c952 7823 intel_ring_emit(ring, pf | pipesrc);
e7d841ca
CW		 7824
7825 intel_mark_page_flip_active(intel_crtc);
6d90c952 7826 intel_ring_advance(ring);
83d4092b
CW		 7827 return 0;
7828
7829err_unpin:
7830 intel_unpin_fb_obj(obj);
7831err:
8c9f3aaf
JB		 7832 return ret;
7833}
7834
7c9017e5
JB		 7835static int intel_gen7_queue_flip(struct drm_device *dev,
7836 struct drm_crtc *crtc,
7837 struct drm_framebuffer *fb,
ed8d1975
KP		 7838 struct drm_i915_gem_object *obj,
7839 uint32_t flags)
7c9017e5
JB		 7840{
7841 struct drm_i915_private *dev_priv = dev->dev_private;
7842 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ffe74d75 7843 struct intel_ring_buffer *ring;
cb05d8de 7844 uint32_t plane_bit = 0;
ffe74d75
CW		 7845 int len, ret;
7846
7847 ring = obj->ring;
1c5fd085 7848 if (IS_VALLEYVIEW(dev) || ring == NULL || ring->id != RCS)
ffe74d75 7849 ring = &dev_priv->ring[BCS];
7c9017e5
JB		 7850
7851 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7852 if (ret)
83d4092b 7853 goto err;
7c9017e5 7854
cb05d8de
DV		 7855 switch(intel_crtc->plane) {
7856 case PLANE_A:
7857 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
7858 break;
7859 case PLANE_B:
7860 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
7861 break;
7862 case PLANE_C:
7863 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
7864 break;
7865 default:
7866 WARN_ONCE(1, "unknown plane in flip command\n");
7867 ret = -ENODEV;
ab3951eb 7868 goto err_unpin;
cb05d8de
DV		 7869 }
7870
ffe74d75
CW		 7871 len = 4;
7872 if (ring->id == RCS)
7873 len += 6;
7874
7875 ret = intel_ring_begin(ring, len);
7c9017e5 7876 if (ret)
83d4092b 7877 goto err_unpin;
7c9017e5 7878
ffe74d75
CW		 7879 /* Unmask the flip-done completion message. Note that the bspec says that
7880 * we should do this for both the BCS and RCS, and that we must not unmask
7881 * more than one flip event at any time (or ensure that one flip message
7882 * can be sent by waiting for flip-done prior to queueing new flips).
7883 * Experimentation says that BCS works despite DERRMR masking all
7884 * flip-done completion events and that unmasking all planes at once
7885 * for the RCS also doesn't appear to drop events. Setting the DERRMR
7886 * to zero does lead to lockups within MI_DISPLAY_FLIP.
7887 */
7888 if (ring->id == RCS) {
7889 intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
7890 intel_ring_emit(ring, DERRMR);
7891 intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE |
7892 DERRMR_PIPEB_PRI_FLIP_DONE |
7893 DERRMR_PIPEC_PRI_FLIP_DONE));
7894 intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1));
7895 intel_ring_emit(ring, DERRMR);
7896 intel_ring_emit(ring, ring->scratch.gtt_offset + 256);
7897 }
7898
cb05d8de 7899 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
01f2c773 7900 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
f343c5f6 7901 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
7c9017e5 7902 intel_ring_emit(ring, (MI_NOOP));
e7d841ca
CW		 7903
7904 intel_mark_page_flip_active(intel_crtc);
7c9017e5 7905 intel_ring_advance(ring);
83d4092b
CW		 7906 return 0;
7907
7908err_unpin:
7909 intel_unpin_fb_obj(obj);
7910err:
7c9017e5
JB		 7911 return ret;
7912}
7913
8c9f3aaf
JB		 7914static int intel_default_queue_flip(struct drm_device *dev,
7915 struct drm_crtc *crtc,
7916 struct drm_framebuffer *fb,
ed8d1975
KP		 7917 struct drm_i915_gem_object *obj,
7918 uint32_t flags)
8c9f3aaf
JB		 7919{
7920 return -ENODEV;
7921}
7922
6b95a207
KH		 7923static int intel_crtc_page_flip(struct drm_crtc *crtc,
7924 struct drm_framebuffer *fb,
ed8d1975
KP		 7925 struct drm_pending_vblank_event *event,
7926 uint32_t page_flip_flags)
6b95a207
KH		 7927{
7928 struct drm_device *dev = crtc->dev;
7929 struct drm_i915_private *dev_priv = dev->dev_private;
4a35f83b
VS		 7930 struct drm_framebuffer *old_fb = crtc->fb;
7931 struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
6b95a207
KH		 7932 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7933 struct intel_unpin_work *work;
8c9f3aaf 7934 unsigned long flags;
52e68630 7935 int ret;
6b95a207 7936
e6a595d2
VS		 7937 /* Can't change pixel format via MI display flips. */
7938 if (fb->pixel_format != crtc->fb->pixel_format)
7939 return -EINVAL;
7940
7941 /*
7942 * TILEOFF/LINOFF registers can't be changed via MI display flips.
7943 * Note that pitch changes could also affect these register.
7944 */
7945 if (INTEL_INFO(dev)->gen > 3 &&
7946 (fb->offsets[0] != crtc->fb->offsets[0] ||
7947 fb->pitches[0] != crtc->fb->pitches[0]))
7948 return -EINVAL;
7949
6b95a207
KH		 7950 work = kzalloc(sizeof *work, GFP_KERNEL);
7951 if (work == NULL)
7952 return -ENOMEM;
7953
6b95a207 7954 work->event = event;
b4a98e57 7955 work->crtc = crtc;
4a35f83b 7956 work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
6b95a207
KH		 7957 INIT_WORK(&work->work, intel_unpin_work_fn);
7958
7317c75e
JB		 7959 ret = drm_vblank_get(dev, intel_crtc->pipe);
7960 if (ret)
7961 goto free_work;
7962
6b95a207
KH		 7963 /* We borrow the event spin lock for protecting unpin_work */
7964 spin_lock_irqsave(&dev->event_lock, flags);
7965 if (intel_crtc->unpin_work) {
7966 spin_unlock_irqrestore(&dev->event_lock, flags);
7967 kfree(work);
7317c75e 7968 drm_vblank_put(dev, intel_crtc->pipe);
468f0b44
CW		 7969
7970 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
6b95a207
KH		 7971 return -EBUSY;
7972 }
7973 intel_crtc->unpin_work = work;
7974 spin_unlock_irqrestore(&dev->event_lock, flags);
7975
b4a98e57
CW		 7976 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
7977 flush_workqueue(dev_priv->wq);
7978
79158103
CW		 7979 ret = i915_mutex_lock_interruptible(dev);
7980 if (ret)
7981 goto cleanup;
6b95a207 7982
75dfca80 7983 /* Reference the objects for the scheduled work. */
05394f39
CW		 7984 drm_gem_object_reference(&work->old_fb_obj->base);
7985 drm_gem_object_reference(&obj->base);
6b95a207
KH		 7986
7987 crtc->fb = fb;
96b099fd 7988
e1f99ce6 7989 work->pending_flip_obj = obj;
e1f99ce6 7990
4e5359cd
SF		 7991 work->enable_stall_check = true;
7992
b4a98e57 7993 atomic_inc(&intel_crtc->unpin_work_count);
10d83730 7994 intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
e1f99ce6 7995
ed8d1975 7996 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, page_flip_flags);
8c9f3aaf
JB		 7997 if (ret)
7998 goto cleanup_pending;
6b95a207 7999
7782de3b 8000 intel_disable_fbc(dev);
c65355bb 8001 intel_mark_fb_busy(obj, NULL);
6b95a207
KH		 8002 mutex_unlock(&dev->struct_mutex);
8003
e5510fac
JB		 8004 trace_i915_flip_request(intel_crtc->plane, obj);
8005
6b95a207 8006 return 0;
96b099fd 8007
8c9f3aaf 8008cleanup_pending:
b4a98e57 8009 atomic_dec(&intel_crtc->unpin_work_count);
4a35f83b 8010 crtc->fb = old_fb;
05394f39
CW		 8011 drm_gem_object_unreference(&work->old_fb_obj->base);
8012 drm_gem_object_unreference(&obj->base);
96b099fd
CW		 8013 mutex_unlock(&dev->struct_mutex);
8014
79158103 8015cleanup:
96b099fd
CW		 8016 spin_lock_irqsave(&dev->event_lock, flags);
8017 intel_crtc->unpin_work = NULL;
8018 spin_unlock_irqrestore(&dev->event_lock, flags);
8019
7317c75e
JB		 8020 drm_vblank_put(dev, intel_crtc->pipe);
8021free_work:
96b099fd
CW		 8022 kfree(work);
8023
8024 return ret;
6b95a207
KH		 8025}
8026
f6e5b160 8027static struct drm_crtc_helper_funcs intel_helper_funcs = {
f6e5b160
CW		 8028 .mode_set_base_atomic = intel_pipe_set_base_atomic,
8029 .load_lut = intel_crtc_load_lut,
f6e5b160
CW		 8030};
8031
50f56119
DV		 8032static bool intel_encoder_crtc_ok(struct drm_encoder *encoder,
8033 struct drm_crtc *crtc)
8034{
8035 struct drm_device *dev;
8036 struct drm_crtc *tmp;
8037 int crtc_mask = 1;
47f1c6c9 8038
50f56119 8039 WARN(!crtc, "checking null crtc?\n");
47f1c6c9 8040
50f56119 8041 dev = crtc->dev;
47f1c6c9 8042
50f56119
DV		 8043 list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
8044 if (tmp == crtc)
8045 break;
8046 crtc_mask <<= 1;
8047 }
47f1c6c9 8048
50f56119
DV		 8049 if (encoder->possible_crtcs & crtc_mask)
8050 return true;
8051 return false;
47f1c6c9 8052}
79e53945 8053
9a935856
DV		 8054/**
8055 * intel_modeset_update_staged_output_state
8056 *
8057 * Updates the staged output configuration state, e.g. after we've read out the
8058 * current hw state.
8059 */
8060static void intel_modeset_update_staged_output_state(struct drm_device *dev)
f6e5b160 8061{
9a935856
DV		 8062 struct intel_encoder *encoder;
8063 struct intel_connector *connector;
f6e5b160 8064
9a935856
DV		 8065 list_for_each_entry(connector, &dev->mode_config.connector_list,
8066 base.head) {
8067 connector->new_encoder =
8068 to_intel_encoder(connector->base.encoder);
8069 }
f6e5b160 8070
9a935856
DV		 8071 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8072 base.head) {
8073 encoder->new_crtc =
8074 to_intel_crtc(encoder->base.crtc);
8075 }
f6e5b160
CW		 8076}
8077
9a935856
DV		 8078/**
8079 * intel_modeset_commit_output_state
8080 *
8081 * This function copies the stage display pipe configuration to the real one.
8082 */
8083static void intel_modeset_commit_output_state(struct drm_device *dev)
8084{
8085 struct intel_encoder *encoder;
8086 struct intel_connector *connector;
f6e5b160 8087
9a935856
DV		 8088 list_for_each_entry(connector, &dev->mode_config.connector_list,
8089 base.head) {
8090 connector->base.encoder = &connector->new_encoder->base;
8091 }
f6e5b160 8092
9a935856
DV		 8093 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8094 base.head) {
8095 encoder->base.crtc = &encoder->new_crtc->base;
8096 }
8097}
8098
050f7aeb
DV		 8099static void
8100connected_sink_compute_bpp(struct intel_connector * connector,
8101 struct intel_crtc_config *pipe_config)
8102{
8103 int bpp = pipe_config->pipe_bpp;
8104
8105 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
8106 connector->base.base.id,
8107 drm_get_connector_name(&connector->base));
8108
8109 /* Don't use an invalid EDID bpc value */
8110 if (connector->base.display_info.bpc &&
8111 connector->base.display_info.bpc * 3 < bpp) {
8112 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
8113 bpp, connector->base.display_info.bpc*3);
8114 pipe_config->pipe_bpp = connector->base.display_info.bpc*3;
8115 }
8116
8117 /* Clamp bpp to 8 on screens without EDID 1.4 */
8118 if (connector->base.display_info.bpc == 0 && bpp > 24) {
8119 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
8120 bpp);
8121 pipe_config->pipe_bpp = 24;
8122 }
8123}
8124
4e53c2e0 8125static int
050f7aeb
DV		 8126compute_baseline_pipe_bpp(struct intel_crtc *crtc,
8127 struct drm_framebuffer *fb,
8128 struct intel_crtc_config *pipe_config)
4e53c2e0 8129{
050f7aeb
DV		 8130 struct drm_device *dev = crtc->base.dev;
8131 struct intel_connector *connector;
4e53c2e0
DV		 8132 int bpp;
8133
d42264b1
DV		 8134 switch (fb->pixel_format) {
8135 case DRM_FORMAT_C8:
4e53c2e0
DV		 8136 bpp = 8*3; /* since we go through a colormap */
8137 break;
d42264b1
DV		 8138 case DRM_FORMAT_XRGB1555:
8139 case DRM_FORMAT_ARGB1555:
8140 /* checked in intel_framebuffer_init already */
8141 if (WARN_ON(INTEL_INFO(dev)->gen > 3))
8142 return -EINVAL;
8143 case DRM_FORMAT_RGB565:
4e53c2e0
DV		 8144 bpp = 6*3; /* min is 18bpp */
8145 break;
d42264b1
DV		 8146 case DRM_FORMAT_XBGR8888:
8147 case DRM_FORMAT_ABGR8888:
8148 /* checked in intel_framebuffer_init already */
8149 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
8150 return -EINVAL;
8151 case DRM_FORMAT_XRGB8888:
8152 case DRM_FORMAT_ARGB8888:
4e53c2e0
DV		 8153 bpp = 8*3;
8154 break;
d42264b1
DV		 8155 case DRM_FORMAT_XRGB2101010:
8156 case DRM_FORMAT_ARGB2101010:
8157 case DRM_FORMAT_XBGR2101010:
8158 case DRM_FORMAT_ABGR2101010:
8159 /* checked in intel_framebuffer_init already */
8160 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
baba133a 8161 return -EINVAL;
4e53c2e0
DV		 8162 bpp = 10*3;
8163 break;
baba133a 8164 /* TODO: gen4+ supports 16 bpc floating point, too. */
4e53c2e0
DV		 8165 default:
8166 DRM_DEBUG_KMS("unsupported depth\n");
8167 return -EINVAL;
8168 }
8169
4e53c2e0
DV		 8170 pipe_config->pipe_bpp = bpp;
8171
8172 /* Clamp display bpp to EDID value */
8173 list_for_each_entry(connector, &dev->mode_config.connector_list,
050f7aeb 8174 base.head) {
1b829e05
DV		 8175 if (!connector->new_encoder ||
8176 connector->new_encoder->new_crtc != crtc)
4e53c2e0
DV		 8177 continue;
8178
050f7aeb 8179 connected_sink_compute_bpp(connector, pipe_config);
4e53c2e0
DV		 8180 }
8181
8182 return bpp;
8183}
8184
c0b03411
DV		 8185static void intel_dump_pipe_config(struct intel_crtc *crtc,
8186 struct intel_crtc_config *pipe_config,
8187 const char *context)
8188{
8189 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id,
8190 context, pipe_name(crtc->pipe));
8191
8192 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder));
8193 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
8194 pipe_config->pipe_bpp, pipe_config->dither);
8195 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
8196 pipe_config->has_pch_encoder,
8197 pipe_config->fdi_lanes,
8198 pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n,
8199 pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n,
8200 pipe_config->fdi_m_n.tu);
8201 DRM_DEBUG_KMS("requested mode:\n");
8202 drm_mode_debug_printmodeline(&pipe_config->requested_mode);
8203 DRM_DEBUG_KMS("adjusted mode:\n");
8204 drm_mode_debug_printmodeline(&pipe_config->adjusted_mode);
8205 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
8206 pipe_config->gmch_pfit.control,
8207 pipe_config->gmch_pfit.pgm_ratios,
8208 pipe_config->gmch_pfit.lvds_border_bits);
fd4daa9c 8209 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
c0b03411 8210 pipe_config->pch_pfit.pos,
fd4daa9c
CW		 8211 pipe_config->pch_pfit.size,
8212 pipe_config->pch_pfit.enabled ? "enabled" : "disabled");
42db64ef 8213 DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled);
c0b03411
DV		 8214}
8215
accfc0c5
DV		 8216static bool check_encoder_cloning(struct drm_crtc *crtc)
8217{
8218 int num_encoders = 0;
8219 bool uncloneable_encoders = false;
8220 struct intel_encoder *encoder;
8221
8222 list_for_each_entry(encoder, &crtc->dev->mode_config.encoder_list,
8223 base.head) {
8224 if (&encoder->new_crtc->base != crtc)
8225 continue;
8226
8227 num_encoders++;
8228 if (!encoder->cloneable)
8229 uncloneable_encoders = true;
8230 }
8231
8232 return !(num_encoders > 1 && uncloneable_encoders);
8233}
8234
b8cecdf5
DV		 8235static struct intel_crtc_config *
8236intel_modeset_pipe_config(struct drm_crtc *crtc,
4e53c2e0 8237 struct drm_framebuffer *fb,
b8cecdf5 8238 struct drm_display_mode *mode)
ee7b9f93 8239{
7758a113 8240 struct drm_device *dev = crtc->dev;
7758a113 8241 struct intel_encoder *encoder;
b8cecdf5 8242 struct intel_crtc_config *pipe_config;
e29c22c0
DV		 8243 int plane_bpp, ret = -EINVAL;
8244 bool retry = true;
ee7b9f93 8245
accfc0c5
DV		 8246 if (!check_encoder_cloning(crtc)) {
8247 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
8248 return ERR_PTR(-EINVAL);
8249 }
8250
b8cecdf5
DV		 8251 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
8252 if (!pipe_config)
7758a113
DV		 8253 return ERR_PTR(-ENOMEM);
8254
b8cecdf5
DV		 8255 drm_mode_copy(&pipe_config->adjusted_mode, mode);
8256 drm_mode_copy(&pipe_config->requested_mode, mode);
e143a21c
DV		 8257 pipe_config->cpu_transcoder =
8258 (enum transcoder) to_intel_crtc(crtc)->pipe;
c0d43d62 8259 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
b8cecdf5 8260
2960bc9c
ID		 8261 /*
8262 * Sanitize sync polarity flags based on requested ones. If neither
8263 * positive or negative polarity is requested, treat this as meaning
8264 * negative polarity.
8265 */
8266 if (!(pipe_config->adjusted_mode.flags &
8267 (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC)))
8268 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC;
8269
8270 if (!(pipe_config->adjusted_mode.flags &
8271 (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC)))
8272 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC;
8273
050f7aeb
DV		 8274 /* Compute a starting value for pipe_config->pipe_bpp taking the source
8275 * plane pixel format and any sink constraints into account. Returns the
8276 * source plane bpp so that dithering can be selected on mismatches
8277 * after encoders and crtc also have had their say. */
8278 plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc),
8279 fb, pipe_config);
4e53c2e0
DV		 8280 if (plane_bpp < 0)
8281 goto fail;
8282
e29c22c0 8283encoder_retry:
ef1b460d 8284 /* Ensure the port clock defaults are reset when retrying. */
ff9a6750 8285 pipe_config->port_clock = 0;
ef1b460d 8286 pipe_config->pixel_multiplier = 1;
ff9a6750 8287
135c81b8
DV		 8288 /* Fill in default crtc timings, allow encoders to overwrite them. */
8289 drm_mode_set_crtcinfo(&pipe_config->adjusted_mode, 0);
8290
7758a113
DV		 8291 /* Pass our mode to the connectors and the CRTC to give them a chance to
8292 * adjust it according to limitations or connector properties, and also
8293 * a chance to reject the mode entirely.
47f1c6c9 8294 */
7758a113
DV		 8295 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8296 base.head) {
47f1c6c9 8297
7758a113
DV		 8298 if (&encoder->new_crtc->base != crtc)
8299 continue;
7ae89233 8300
efea6e8e
DV		 8301 if (!(encoder->compute_config(encoder, pipe_config))) {
8302 DRM_DEBUG_KMS("Encoder config failure\n");
7758a113
DV		 8303 goto fail;
8304 }
ee7b9f93 8305 }
47f1c6c9 8306
ff9a6750
DV		 8307 /* Set default port clock if not overwritten by the encoder. Needs to be
8308 * done afterwards in case the encoder adjusts the mode. */
8309 if (!pipe_config->port_clock)
8310 pipe_config->port_clock = pipe_config->adjusted_mode.clock;
8311
a43f6e0f 8312 ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config);
e29c22c0 8313 if (ret < 0) {
7758a113
DV		 8314 DRM_DEBUG_KMS("CRTC fixup failed\n");
8315 goto fail;
ee7b9f93 8316 }
e29c22c0
DV		 8317
8318 if (ret == RETRY) {
8319 if (WARN(!retry, "loop in pipe configuration computation\n")) {
8320 ret = -EINVAL;
8321 goto fail;
8322 }
8323
8324 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
8325 retry = false;
8326 goto encoder_retry;
8327 }
8328
4e53c2e0
DV		 8329 pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
8330 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
8331 plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
8332
b8cecdf5 8333 return pipe_config;
7758a113 8334fail:
b8cecdf5 8335 kfree(pipe_config);
e29c22c0 8336 return ERR_PTR(ret);
ee7b9f93 8337}
47f1c6c9 8338
e2e1ed41
DV		 8339/* Computes which crtcs are affected and sets the relevant bits in the mask. For
8340 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
8341static void
8342intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
8343 unsigned *prepare_pipes, unsigned *disable_pipes)
79e53945
JB		 8344{
8345 struct intel_crtc *intel_crtc;
e2e1ed41
DV		 8346 struct drm_device *dev = crtc->dev;
8347 struct intel_encoder *encoder;
8348 struct intel_connector *connector;
8349 struct drm_crtc *tmp_crtc;
79e53945 8350
e2e1ed41 8351 *disable_pipes = *modeset_pipes = *prepare_pipes = 0;
79e53945 8352
e2e1ed41
DV		 8353 /* Check which crtcs have changed outputs connected to them, these need
8354 * to be part of the prepare_pipes mask. We don't (yet) support global
8355 * modeset across multiple crtcs, so modeset_pipes will only have one
8356 * bit set at most. */
8357 list_for_each_entry(connector, &dev->mode_config.connector_list,
8358 base.head) {
8359 if (connector->base.encoder == &connector->new_encoder->base)
8360 continue;
79e53945 8361
e2e1ed41
DV		 8362 if (connector->base.encoder) {
8363 tmp_crtc = connector->base.encoder->crtc;
8364
8365 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
8366 }
8367
8368 if (connector->new_encoder)
8369 *prepare_pipes |=
8370 1 << connector->new_encoder->new_crtc->pipe;
79e53945
JB		 8371 }
8372
e2e1ed41
DV		 8373 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8374 base.head) {
8375 if (encoder->base.crtc == &encoder->new_crtc->base)
8376 continue;
8377
8378 if (encoder->base.crtc) {
8379 tmp_crtc = encoder->base.crtc;
8380
8381 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
8382 }
8383
8384 if (encoder->new_crtc)
8385 *prepare_pipes |= 1 << encoder->new_crtc->pipe;
80824003
JB		 8386 }
8387
e2e1ed41
DV		 8388 /* Check for any pipes that will be fully disabled ... */
8389 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
8390 base.head) {
8391 bool used = false;
22fd0fab 8392
e2e1ed41
DV		 8393 /* Don't try to disable disabled crtcs. */
8394 if (!intel_crtc->base.enabled)
8395 continue;
7e7d76c3 8396
e2e1ed41
DV		 8397 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8398 base.head) {
8399 if (encoder->new_crtc == intel_crtc)
8400 used = true;
8401 }
8402
8403 if (!used)
8404 *disable_pipes |= 1 << intel_crtc->pipe;
7e7d76c3
JB		 8405 }
8406
e2e1ed41
DV		 8407
8408 /* set_mode is also used to update properties on life display pipes. */
8409 intel_crtc = to_intel_crtc(crtc);
8410 if (crtc->enabled)
8411 *prepare_pipes |= 1 << intel_crtc->pipe;
8412
b6c5164d
DV		 8413 /*
8414 * For simplicity do a full modeset on any pipe where the output routing
8415 * changed. We could be more clever, but that would require us to be
8416 * more careful with calling the relevant encoder->mode_set functions.
8417 */
e2e1ed41
DV		 8418 if (*prepare_pipes)
8419 *modeset_pipes = *prepare_pipes;
8420
8421 /* ... and mask these out. */
8422 *modeset_pipes &= ~(*disable_pipes);
8423 *prepare_pipes &= ~(*disable_pipes);
b6c5164d
DV		 8424
8425 /*
8426 * HACK: We don't (yet) fully support global modesets. intel_set_config
8427 * obies this rule, but the modeset restore mode of
8428 * intel_modeset_setup_hw_state does not.
8429 */
8430 *modeset_pipes &= 1 << intel_crtc->pipe;
8431 *prepare_pipes &= 1 << intel_crtc->pipe;
e3641d3f
DV		 8432
8433 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
8434 *modeset_pipes, *prepare_pipes, *disable_pipes);
47f1c6c9 8435}
79e53945 8436
ea9d758d 8437static bool intel_crtc_in_use(struct drm_crtc *crtc)
f6e5b160 8438{
ea9d758d 8439 struct drm_encoder *encoder;
f6e5b160 8440 struct drm_device *dev = crtc->dev;
f6e5b160 8441
ea9d758d
DV		 8442 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
8443 if (encoder->crtc == crtc)
8444 return true;
8445
8446 return false;
8447}
8448
8449static void
8450intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
8451{
8452 struct intel_encoder *intel_encoder;
8453 struct intel_crtc *intel_crtc;
8454 struct drm_connector *connector;
8455
8456 list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
8457 base.head) {
8458 if (!intel_encoder->base.crtc)
8459 continue;
8460
8461 intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
8462
8463 if (prepare_pipes & (1 << intel_crtc->pipe))
8464 intel_encoder->connectors_active = false;
8465 }
8466
8467 intel_modeset_commit_output_state(dev);
8468
8469 /* Update computed state. */
8470 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
8471 base.head) {
8472 intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base);
8473 }
8474
8475 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
8476 if (!connector->encoder || !connector->encoder->crtc)
8477 continue;
8478
8479 intel_crtc = to_intel_crtc(connector->encoder->crtc);
8480
8481 if (prepare_pipes & (1 << intel_crtc->pipe)) {
68d34720
DV		 8482 struct drm_property *dpms_property =
8483 dev->mode_config.dpms_property;
8484
ea9d758d 8485 connector->dpms = DRM_MODE_DPMS_ON;
662595df 8486 drm_object_property_set_value(&connector->base,
68d34720
DV		 8487 dpms_property,
8488 DRM_MODE_DPMS_ON);
ea9d758d
DV		 8489
8490 intel_encoder = to_intel_encoder(connector->encoder);
8491 intel_encoder->connectors_active = true;
8492 }
8493 }
8494
8495}
8496
f1f644dc
JB		 8497static bool intel_fuzzy_clock_check(struct intel_crtc_config *cur,
8498 struct intel_crtc_config *new)
8499{
8500 int clock1, clock2, diff;
8501
8502 clock1 = cur->adjusted_mode.clock;
8503 clock2 = new->adjusted_mode.clock;
8504
8505 if (clock1 == clock2)
8506 return true;
8507
8508 if (!clock1 || !clock2)
8509 return false;
8510
8511 diff = abs(clock1 - clock2);
8512
8513 if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105)
8514 return true;
8515
8516 return false;
8517}
8518
25c5b266
DV		 8519#define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
8520 list_for_each_entry((intel_crtc), \
8521 &(dev)->mode_config.crtc_list, \
8522 base.head) \
0973f18f 8523 if (mask & (1 <<(intel_crtc)->pipe))
25c5b266 8524
0e8ffe1b 8525static bool
2fa2fe9a
DV		 8526intel_pipe_config_compare(struct drm_device *dev,
8527 struct intel_crtc_config *current_config,
0e8ffe1b
DV		 8528 struct intel_crtc_config *pipe_config)
8529{
66e985c0
DV		 8530#define PIPE_CONF_CHECK_X(name) \
8531 if (current_config->name != pipe_config->name) { \
8532 DRM_ERROR("mismatch in " #name " " \
8533 "(expected 0x%08x, found 0x%08x)\n", \
8534 current_config->name, \
8535 pipe_config->name); \
8536 return false; \
8537 }
8538
08a24034
DV		 8539#define PIPE_CONF_CHECK_I(name) \
8540 if (current_config->name != pipe_config->name) { \
8541 DRM_ERROR("mismatch in " #name " " \
8542 "(expected %i, found %i)\n", \
8543 current_config->name, \
8544 pipe_config->name); \
8545 return false; \
88adfff1
DV		 8546 }
8547
1bd1bd80
DV		 8548#define PIPE_CONF_CHECK_FLAGS(name, mask) \
8549 if ((current_config->name ^ pipe_config->name) & (mask)) { \
6f02488e 8550 DRM_ERROR("mismatch in " #name "(" #mask ") " \
1bd1bd80
DV		 8551 "(expected %i, found %i)\n", \
8552 current_config->name & (mask), \
8553 pipe_config->name & (mask)); \
8554 return false; \
8555 }
8556
bb760063
DV		 8557#define PIPE_CONF_QUIRK(quirk) \
8558 ((current_config->quirks | pipe_config->quirks) & (quirk))
8559
eccb140b
DV		 8560 PIPE_CONF_CHECK_I(cpu_transcoder);
8561
08a24034
DV		 8562 PIPE_CONF_CHECK_I(has_pch_encoder);
8563 PIPE_CONF_CHECK_I(fdi_lanes);
72419203
DV		 8564 PIPE_CONF_CHECK_I(fdi_m_n.gmch_m);
8565 PIPE_CONF_CHECK_I(fdi_m_n.gmch_n);
8566 PIPE_CONF_CHECK_I(fdi_m_n.link_m);
8567 PIPE_CONF_CHECK_I(fdi_m_n.link_n);
8568 PIPE_CONF_CHECK_I(fdi_m_n.tu);
08a24034 8569
1bd1bd80
DV		 8570 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay);
8571 PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal);
8572 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start);
8573 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end);
8574 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start);
8575 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end);
8576
8577 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay);
8578 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal);
8579 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start);
8580 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end);
8581 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start);
8582 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end);
8583
c93f54cf 8584 PIPE_CONF_CHECK_I(pixel_multiplier);
6c49f241 8585
1bd1bd80
DV		 8586 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8587 DRM_MODE_FLAG_INTERLACE);
8588
bb760063
DV		 8589 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) {
8590 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8591 DRM_MODE_FLAG_PHSYNC);
8592 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8593 DRM_MODE_FLAG_NHSYNC);
8594 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8595 DRM_MODE_FLAG_PVSYNC);
8596 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8597 DRM_MODE_FLAG_NVSYNC);
8598 }
045ac3b5 8599
1bd1bd80
DV		 8600 PIPE_CONF_CHECK_I(requested_mode.hdisplay);
8601 PIPE_CONF_CHECK_I(requested_mode.vdisplay);
8602
2fa2fe9a
DV		 8603 PIPE_CONF_CHECK_I(gmch_pfit.control);
8604 /* pfit ratios are autocomputed by the hw on gen4+ */
8605 if (INTEL_INFO(dev)->gen < 4)
8606 PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios);
8607 PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits);
fd4daa9c
CW		 8608 PIPE_CONF_CHECK_I(pch_pfit.enabled);
8609 if (current_config->pch_pfit.enabled) {
8610 PIPE_CONF_CHECK_I(pch_pfit.pos);
8611 PIPE_CONF_CHECK_I(pch_pfit.size);
8612 }
2fa2fe9a 8613
42db64ef
PZ		 8614 PIPE_CONF_CHECK_I(ips_enabled);
8615
c0d43d62 8616 PIPE_CONF_CHECK_I(shared_dpll);
66e985c0 8617 PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
8bcc2795 8618 PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
66e985c0
DV		 8619 PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
8620 PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
c0d43d62 8621
66e985c0 8622#undef PIPE_CONF_CHECK_X
08a24034 8623#undef PIPE_CONF_CHECK_I
1bd1bd80 8624#undef PIPE_CONF_CHECK_FLAGS
bb760063 8625#undef PIPE_CONF_QUIRK
88adfff1 8626
f1f644dc
JB		 8627 if (!IS_HASWELL(dev)) {
8628 if (!intel_fuzzy_clock_check(current_config, pipe_config)) {
6f02488e 8629 DRM_ERROR("mismatch in clock (expected %d, found %d)\n",
f1f644dc
JB		 8630 current_config->adjusted_mode.clock,
8631 pipe_config->adjusted_mode.clock);
8632 return false;
8633 }
8634 }
8635
0e8ffe1b
DV		 8636 return true;
8637}
8638
91d1b4bd
DV		 8639static void
8640check_connector_state(struct drm_device *dev)
8af6cf88 8641{
8af6cf88
DV		 8642 struct intel_connector *connector;
8643
8644 list_for_each_entry(connector, &dev->mode_config.connector_list,
8645 base.head) {
8646 /* This also checks the encoder/connector hw state with the
8647 * ->get_hw_state callbacks. */
8648 intel_connector_check_state(connector);
8649
8650 WARN(&connector->new_encoder->base != connector->base.encoder,
8651 "connector's staged encoder doesn't match current encoder\n");
8652 }
91d1b4bd
DV		 8653}
8654
8655static void
8656check_encoder_state(struct drm_device *dev)
8657{
8658 struct intel_encoder *encoder;
8659 struct intel_connector *connector;
8af6cf88
DV		 8660
8661 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8662 base.head) {
8663 bool enabled = false;
8664 bool active = false;
8665 enum pipe pipe, tracked_pipe;
8666
8667 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
8668 encoder->base.base.id,
8669 drm_get_encoder_name(&encoder->base));
8670
8671 WARN(&encoder->new_crtc->base != encoder->base.crtc,
8672 "encoder's stage crtc doesn't match current crtc\n");
8673 WARN(encoder->connectors_active && !encoder->base.crtc,
8674 "encoder's active_connectors set, but no crtc\n");
8675
8676 list_for_each_entry(connector, &dev->mode_config.connector_list,
8677 base.head) {
8678 if (connector->base.encoder != &encoder->base)
8679 continue;
8680 enabled = true;
8681 if (connector->base.dpms != DRM_MODE_DPMS_OFF)
8682 active = true;
8683 }
8684 WARN(!!encoder->base.crtc != enabled,
8685 "encoder's enabled state mismatch "
8686 "(expected %i, found %i)\n",
8687 !!encoder->base.crtc, enabled);
8688 WARN(active && !encoder->base.crtc,
8689 "active encoder with no crtc\n");
8690
8691 WARN(encoder->connectors_active != active,
8692 "encoder's computed active state doesn't match tracked active state "
8693 "(expected %i, found %i)\n", active, encoder->connectors_active);
8694
8695 active = encoder->get_hw_state(encoder, &pipe);
8696 WARN(active != encoder->connectors_active,
8697 "encoder's hw state doesn't match sw tracking "
8698 "(expected %i, found %i)\n",
8699 encoder->connectors_active, active);
8700
8701 if (!encoder->base.crtc)
8702 continue;
8703
8704 tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
8705 WARN(active && pipe != tracked_pipe,
8706 "active encoder's pipe doesn't match"
8707 "(expected %i, found %i)\n",
8708 tracked_pipe, pipe);
8709
8710 }
91d1b4bd
DV		 8711}
8712
8713static void
8714check_crtc_state(struct drm_device *dev)
8715{
8716 drm_i915_private_t *dev_priv = dev->dev_private;
8717 struct intel_crtc *crtc;
8718 struct intel_encoder *encoder;
8719 struct intel_crtc_config pipe_config;
8af6cf88
DV		 8720
8721 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
8722 base.head) {
8723 bool enabled = false;
8724 bool active = false;
8725
045ac3b5
JB		 8726 memset(&pipe_config, 0, sizeof(pipe_config));
8727
8af6cf88
DV		 8728 DRM_DEBUG_KMS("[CRTC:%d]\n",
8729 crtc->base.base.id);
8730
8731 WARN(crtc->active && !crtc->base.enabled,
8732 "active crtc, but not enabled in sw tracking\n");
8733
8734 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8735 base.head) {
8736 if (encoder->base.crtc != &crtc->base)
8737 continue;
8738 enabled = true;
8739 if (encoder->connectors_active)
8740 active = true;
8741 }
6c49f241 8742
8af6cf88
DV		 8743 WARN(active != crtc->active,
8744 "crtc's computed active state doesn't match tracked active state "
8745 "(expected %i, found %i)\n", active, crtc->active);
8746 WARN(enabled != crtc->base.enabled,
8747 "crtc's computed enabled state doesn't match tracked enabled state "
8748 "(expected %i, found %i)\n", enabled, crtc->base.enabled);
8749
0e8ffe1b
DV		 8750 active = dev_priv->display.get_pipe_config(crtc,
8751 &pipe_config);
d62cf62a
DV		 8752
8753 /* hw state is inconsistent with the pipe A quirk */
8754 if (crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
8755 active = crtc->active;
8756
6c49f241
DV		 8757 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8758 base.head) {
3eaba51c 8759 enum pipe pipe;
6c49f241
DV		 8760 if (encoder->base.crtc != &crtc->base)
8761 continue;
3eaba51c
VS		 8762 if (encoder->get_config &&
8763 encoder->get_hw_state(encoder, &pipe))
6c49f241
DV		 8764 encoder->get_config(encoder, &pipe_config);
8765 }
8766
510d5f2f
JB		 8767 if (dev_priv->display.get_clock)
8768 dev_priv->display.get_clock(crtc, &pipe_config);
8769
0e8ffe1b
DV		 8770 WARN(crtc->active != active,
8771 "crtc active state doesn't match with hw state "
8772 "(expected %i, found %i)\n", crtc->active, active);
8773
c0b03411
DV		 8774 if (active &&
8775 !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) {
8776 WARN(1, "pipe state doesn't match!\n");
8777 intel_dump_pipe_config(crtc, &pipe_config,
8778 "[hw state]");
8779 intel_dump_pipe_config(crtc, &crtc->config,
8780 "[sw state]");
8781 }
8af6cf88
DV		 8782 }
8783}
8784
91d1b4bd
DV		 8785static void
8786check_shared_dpll_state(struct drm_device *dev)
8787{
8788 drm_i915_private_t *dev_priv = dev->dev_private;
8789 struct intel_crtc *crtc;
8790 struct intel_dpll_hw_state dpll_hw_state;
8791 int i;
5358901f
DV		 8792
8793 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
8794 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
8795 int enabled_crtcs = 0, active_crtcs = 0;
8796 bool active;
8797
8798 memset(&dpll_hw_state, 0, sizeof(dpll_hw_state));
8799
8800 DRM_DEBUG_KMS("%s\n", pll->name);
8801
8802 active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state);
8803
8804 WARN(pll->active > pll->refcount,
8805 "more active pll users than references: %i vs %i\n",
8806 pll->active, pll->refcount);
8807 WARN(pll->active && !pll->on,
8808 "pll in active use but not on in sw tracking\n");
35c95375
DV		 8809 WARN(pll->on && !pll->active,
8810 "pll in on but not on in use in sw tracking\n");
5358901f
DV		 8811 WARN(pll->on != active,
8812 "pll on state mismatch (expected %i, found %i)\n",
8813 pll->on, active);
8814
8815 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
8816 base.head) {
8817 if (crtc->base.enabled && intel_crtc_to_shared_dpll(crtc) == pll)
8818 enabled_crtcs++;
8819 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
8820 active_crtcs++;
8821 }
8822 WARN(pll->active != active_crtcs,
8823 "pll active crtcs mismatch (expected %i, found %i)\n",
8824 pll->active, active_crtcs);
8825 WARN(pll->refcount != enabled_crtcs,
8826 "pll enabled crtcs mismatch (expected %i, found %i)\n",
8827 pll->refcount, enabled_crtcs);
66e985c0
DV		 8828
8829 WARN(pll->on && memcmp(&pll->hw_state, &dpll_hw_state,
8830 sizeof(dpll_hw_state)),
8831 "pll hw state mismatch\n");
5358901f 8832 }
8af6cf88
DV		 8833}
8834
91d1b4bd
DV		 8835void
8836intel_modeset_check_state(struct drm_device *dev)
8837{
8838 check_connector_state(dev);
8839 check_encoder_state(dev);
8840 check_crtc_state(dev);
8841 check_shared_dpll_state(dev);
8842}
8843
f30da187
DV		 8844static int __intel_set_mode(struct drm_crtc *crtc,
8845 struct drm_display_mode *mode,
8846 int x, int y, struct drm_framebuffer *fb)
a6778b3c
DV		 8847{
8848 struct drm_device *dev = crtc->dev;
dbf2b54e 8849 drm_i915_private_t *dev_priv = dev->dev_private;
b8cecdf5
DV		 8850 struct drm_display_mode *saved_mode, *saved_hwmode;
8851 struct intel_crtc_config *pipe_config = NULL;
25c5b266
DV		 8852 struct intel_crtc *intel_crtc;
8853 unsigned disable_pipes, prepare_pipes, modeset_pipes;
c0c36b94 8854 int ret = 0;
a6778b3c 8855
3ac18232 8856 saved_mode = kmalloc(2 * sizeof(*saved_mode), GFP_KERNEL);
c0c36b94
CW		 8857 if (!saved_mode)
8858 return -ENOMEM;
3ac18232 8859 saved_hwmode = saved_mode + 1;
a6778b3c 8860
e2e1ed41 8861 intel_modeset_affected_pipes(crtc, &modeset_pipes,
25c5b266
DV		 8862 &prepare_pipes, &disable_pipes);
8863
3ac18232
TG		 8864 *saved_hwmode = crtc->hwmode;
8865 *saved_mode = crtc->mode;
a6778b3c 8866
25c5b266
DV		 8867 /* Hack: Because we don't (yet) support global modeset on multiple
8868 * crtcs, we don't keep track of the new mode for more than one crtc.
8869 * Hence simply check whether any bit is set in modeset_pipes in all the
8870 * pieces of code that are not yet converted to deal with mutliple crtcs
8871 * changing their mode at the same time. */
25c5b266 8872 if (modeset_pipes) {
4e53c2e0 8873 pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
b8cecdf5
DV		 8874 if (IS_ERR(pipe_config)) {
8875 ret = PTR_ERR(pipe_config);
8876 pipe_config = NULL;
8877
3ac18232 8878 goto out;
25c5b266 8879 }
c0b03411
DV		 8880 intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config,
8881 "[modeset]");
25c5b266 8882 }
a6778b3c 8883
460da916
DV		 8884 for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
8885 intel_crtc_disable(&intel_crtc->base);
8886
ea9d758d
DV		 8887 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
8888 if (intel_crtc->base.enabled)
8889 dev_priv->display.crtc_disable(&intel_crtc->base);
8890 }
a6778b3c 8891
6c4c86f5
DV		 8892 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
8893 * to set it here already despite that we pass it down the callchain.
f6e5b160 8894 */
b8cecdf5 8895 if (modeset_pipes) {
25c5b266 8896 crtc->mode = *mode;
b8cecdf5
DV		 8897 /* mode_set/enable/disable functions rely on a correct pipe
8898 * config. */
8899 to_intel_crtc(crtc)->config = *pipe_config;
8900 }
7758a113 8901
ea9d758d
DV		 8902 /* Only after disabling all output pipelines that will be changed can we
8903 * update the the output configuration. */
8904 intel_modeset_update_state(dev, prepare_pipes);
f6e5b160 8905
47fab737
DV		 8906 if (dev_priv->display.modeset_global_resources)
8907 dev_priv->display.modeset_global_resources(dev);
8908
a6778b3c
DV		 8909 /* Set up the DPLL and any encoders state that needs to adjust or depend
8910 * on the DPLL.
f6e5b160 8911 */
25c5b266 8912 for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
c0c36b94 8913 ret = intel_crtc_mode_set(&intel_crtc->base,
c0c36b94
CW		 8914 x, y, fb);
8915 if (ret)
8916 goto done;
a6778b3c
DV		 8917 }
8918
8919 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
25c5b266
DV		 8920 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
8921 dev_priv->display.crtc_enable(&intel_crtc->base);
a6778b3c 8922
25c5b266
DV		 8923 if (modeset_pipes) {
8924 /* Store real post-adjustment hardware mode. */
b8cecdf5 8925 crtc->hwmode = pipe_config->adjusted_mode;
a6778b3c 8926
25c5b266
DV		 8927 /* Calculate and store various constants which
8928 * are later needed by vblank and swap-completion
8929 * timestamping. They are derived from true hwmode.
8930 */
8931 drm_calc_timestamping_constants(crtc);
8932 }
a6778b3c
DV		 8933
8934 /* FIXME: add subpixel order */
8935done:
c0c36b94 8936 if (ret && crtc->enabled) {
3ac18232
TG		 8937 crtc->hwmode = *saved_hwmode;
8938 crtc->mode = *saved_mode;
a6778b3c
DV		 8939 }
8940
3ac18232 8941out:
b8cecdf5 8942 kfree(pipe_config);
3ac18232 8943 kfree(saved_mode);
a6778b3c 8944 return ret;
f6e5b160
CW		 8945}
8946
e7457a9a
DL		 8947static int intel_set_mode(struct drm_crtc *crtc,
8948 struct drm_display_mode *mode,
8949 int x, int y, struct drm_framebuffer *fb)
f30da187
DV		 8950{
8951 int ret;
8952
8953 ret = __intel_set_mode(crtc, mode, x, y, fb);
8954
8955 if (ret == 0)
8956 intel_modeset_check_state(crtc->dev);
8957
8958 return ret;
8959}
8960
c0c36b94
CW		 8961void intel_crtc_restore_mode(struct drm_crtc *crtc)
8962{
8963 intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb);
8964}
8965
25c5b266
DV		 8966#undef for_each_intel_crtc_masked
8967
d9e55608
DV		 8968static void intel_set_config_free(struct intel_set_config *config)
8969{
8970 if (!config)
8971 return;
8972
1aa4b628
DV		 8973 kfree(config->save_connector_encoders);
8974 kfree(config->save_encoder_crtcs);
d9e55608
DV		 8975 kfree(config);
8976}
8977
85f9eb71
DV		 8978static int intel_set_config_save_state(struct drm_device *dev,
8979 struct intel_set_config *config)
8980{
85f9eb71
DV		 8981 struct drm_encoder *encoder;
8982 struct drm_connector *connector;
8983 int count;
8984
1aa4b628
DV		 8985 config->save_encoder_crtcs =
8986 kcalloc(dev->mode_config.num_encoder,
8987 sizeof(struct drm_crtc *), GFP_KERNEL);
8988 if (!config->save_encoder_crtcs)
85f9eb71
DV		 8989 return -ENOMEM;
8990
1aa4b628
DV		 8991 config->save_connector_encoders =
8992 kcalloc(dev->mode_config.num_connector,
8993 sizeof(struct drm_encoder *), GFP_KERNEL);
8994 if (!config->save_connector_encoders)
85f9eb71
DV		 8995 return -ENOMEM;
8996
8997 /* Copy data. Note that driver private data is not affected.
8998 * Should anything bad happen only the expected state is
8999 * restored, not the drivers personal bookkeeping.
9000 */
85f9eb71
DV		 9001 count = 0;
9002 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1aa4b628 9003 config->save_encoder_crtcs[count++] = encoder->crtc;
85f9eb71
DV		 9004 }
9005
9006 count = 0;
9007 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1aa4b628 9008 config->save_connector_encoders[count++] = connector->encoder;
85f9eb71
DV		 9009 }
9010
9011 return 0;
9012}
9013
9014static void intel_set_config_restore_state(struct drm_device *dev,
9015 struct intel_set_config *config)
9016{
9a935856
DV		 9017 struct intel_encoder *encoder;
9018 struct intel_connector *connector;
85f9eb71
DV		 9019 int count;
9020
85f9eb71 9021 count = 0;
9a935856
DV		 9022 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
9023 encoder->new_crtc =
9024 to_intel_crtc(config->save_encoder_crtcs[count++]);
85f9eb71
DV		 9025 }
9026
9027 count = 0;
9a935856
DV		 9028 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
9029 connector->new_encoder =
9030 to_intel_encoder(config->save_connector_encoders[count++]);
85f9eb71
DV		 9031 }
9032}
9033
e3de42b6 9034static bool
2e57f47d 9035is_crtc_connector_off(struct drm_mode_set *set)
e3de42b6
ID		 9036{
9037 int i;
9038
2e57f47d
CW		 9039 if (set->num_connectors == 0)
9040 return false;
9041
9042 if (WARN_ON(set->connectors == NULL))
9043 return false;
9044
9045 for (i = 0; i < set->num_connectors; i++)
9046 if (set->connectors[i]->encoder &&
9047 set->connectors[i]->encoder->crtc == set->crtc &&
9048 set->connectors[i]->dpms != DRM_MODE_DPMS_ON)
e3de42b6
ID		 9049 return true;
9050
9051 return false;
9052}
9053
5e2b584e
DV		 9054static void
9055intel_set_config_compute_mode_changes(struct drm_mode_set *set,
9056 struct intel_set_config *config)
9057{
9058
9059 /* We should be able to check here if the fb has the same properties
9060 * and then just flip_or_move it */
2e57f47d
CW		 9061 if (is_crtc_connector_off(set)) {
9062 config->mode_changed = true;
e3de42b6 9063 } else if (set->crtc->fb != set->fb) {
5e2b584e
DV		 9064 /* If we have no fb then treat it as a full mode set */
9065 if (set->crtc->fb == NULL) {
319d9827
JB		 9066 struct intel_crtc *intel_crtc =
9067 to_intel_crtc(set->crtc);
9068
9069 if (intel_crtc->active && i915_fastboot) {
9070 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
9071 config->fb_changed = true;
9072 } else {
9073 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
9074 config->mode_changed = true;
9075 }
5e2b584e
DV		 9076 } else if (set->fb == NULL) {
9077 config->mode_changed = true;
72f4901e
DV		 9078 } else if (set->fb->pixel_format !=
9079 set->crtc->fb->pixel_format) {
5e2b584e 9080 config->mode_changed = true;
e3de42b6 9081 } else {
5e2b584e 9082 config->fb_changed = true;
e3de42b6 9083 }
5e2b584e
DV		 9084 }
9085
835c5873 9086 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
5e2b584e
DV		 9087 config->fb_changed = true;
9088
9089 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
9090 DRM_DEBUG_KMS("modes are different, full mode set\n");
9091 drm_mode_debug_printmodeline(&set->crtc->mode);
9092 drm_mode_debug_printmodeline(set->mode);
9093 config->mode_changed = true;
9094 }
a1d95703
CW		 9095
9096 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
9097 set->crtc->base.id, config->mode_changed, config->fb_changed);
5e2b584e
DV		 9098}
9099
2e431051 9100static int
9a935856
DV		 9101intel_modeset_stage_output_state(struct drm_device *dev,
9102 struct drm_mode_set *set,
9103 struct intel_set_config *config)
50f56119 9104{
85f9eb71 9105 struct drm_crtc *new_crtc;
9a935856
DV		 9106 struct intel_connector *connector;
9107 struct intel_encoder *encoder;
f3f08572 9108 int ro;
50f56119 9109
9abdda74 9110 /* The upper layers ensure that we either disable a crtc or have a list
9a935856
DV		 9111 * of connectors. For paranoia, double-check this. */
9112 WARN_ON(!set->fb && (set->num_connectors != 0));
9113 WARN_ON(set->fb && (set->num_connectors == 0));
9114
9a935856
DV		 9115 list_for_each_entry(connector, &dev->mode_config.connector_list,
9116 base.head) {
9117 /* Otherwise traverse passed in connector list and get encoders
9118 * for them. */
50f56119 9119 for (ro = 0; ro < set->num_connectors; ro++) {
9a935856
DV		 9120 if (set->connectors[ro] == &connector->base) {
9121 connector->new_encoder = connector->encoder;
50f56119
DV		 9122 break;
9123 }
9124 }
9125
9a935856
DV		 9126 /* If we disable the crtc, disable all its connectors. Also, if
9127 * the connector is on the changing crtc but not on the new
9128 * connector list, disable it. */
9129 if ((!set->fb || ro == set->num_connectors) &&
9130 connector->base.encoder &&
9131 connector->base.encoder->crtc == set->crtc) {
9132 connector->new_encoder = NULL;
9133
9134 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
9135 connector->base.base.id,
9136 drm_get_connector_name(&connector->base));
9137 }
9138
9139
9140 if (&connector->new_encoder->base != connector->base.encoder) {
50f56119 9141 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
5e2b584e 9142 config->mode_changed = true;
50f56119
DV		 9143 }
9144 }
9a935856 9145 /* connector->new_encoder is now updated for all connectors. */
50f56119 9146
9a935856 9147 /* Update crtc of enabled connectors. */
9a935856
DV		 9148 list_for_each_entry(connector, &dev->mode_config.connector_list,
9149 base.head) {
9150 if (!connector->new_encoder)
50f56119
DV		 9151 continue;
9152
9a935856 9153 new_crtc = connector->new_encoder->base.crtc;
50f56119
DV		 9154
9155 for (ro = 0; ro < set->num_connectors; ro++) {
9a935856 9156 if (set->connectors[ro] == &connector->base)
50f56119
DV		 9157 new_crtc = set->crtc;
9158 }
9159
9160 /* Make sure the new CRTC will work with the encoder */
9a935856
DV		 9161 if (!intel_encoder_crtc_ok(&connector->new_encoder->base,
9162 new_crtc)) {
5e2b584e 9163 return -EINVAL;
50f56119 9164 }
9a935856
DV		 9165 connector->encoder->new_crtc = to_intel_crtc(new_crtc);
9166
9167 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
9168 connector->base.base.id,
9169 drm_get_connector_name(&connector->base),
9170 new_crtc->base.id);
9171 }
9172
9173 /* Check for any encoders that needs to be disabled. */
9174 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9175 base.head) {
9176 list_for_each_entry(connector,
9177 &dev->mode_config.connector_list,
9178 base.head) {
9179 if (connector->new_encoder == encoder) {
9180 WARN_ON(!connector->new_encoder->new_crtc);
9181
9182 goto next_encoder;
9183 }
9184 }
9185 encoder->new_crtc = NULL;
9186next_encoder:
9187 /* Only now check for crtc changes so we don't miss encoders
9188 * that will be disabled. */
9189 if (&encoder->new_crtc->base != encoder->base.crtc) {
50f56119 9190 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
5e2b584e 9191 config->mode_changed = true;
50f56119
DV		 9192 }
9193 }
9a935856 9194 /* Now we've also updated encoder->new_crtc for all encoders. */
50f56119 9195
2e431051
DV		 9196 return 0;
9197}
9198
9199static int intel_crtc_set_config(struct drm_mode_set *set)
9200{
9201 struct drm_device *dev;
2e431051
DV		 9202 struct drm_mode_set save_set;
9203 struct intel_set_config *config;
9204 int ret;
2e431051 9205
8d3e375e
DV		 9206 BUG_ON(!set);
9207 BUG_ON(!set->crtc);
9208 BUG_ON(!set->crtc->helper_private);
2e431051 9209
7e53f3a4
DV		 9210 /* Enforce sane interface api - has been abused by the fb helper. */
9211 BUG_ON(!set->mode && set->fb);
9212 BUG_ON(set->fb && set->num_connectors == 0);
431e50f7 9213
2e431051
DV		 9214 if (set->fb) {
9215 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
9216 set->crtc->base.id, set->fb->base.id,
9217 (int)set->num_connectors, set->x, set->y);
9218 } else {
9219 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
2e431051
DV		 9220 }
9221
9222 dev = set->crtc->dev;
9223
9224 ret = -ENOMEM;
9225 config = kzalloc(sizeof(*config), GFP_KERNEL);
9226 if (!config)
9227 goto out_config;
9228
9229 ret = intel_set_config_save_state(dev, config);
9230 if (ret)
9231 goto out_config;
9232
9233 save_set.crtc = set->crtc;
9234 save_set.mode = &set->crtc->mode;
9235 save_set.x = set->crtc->x;
9236 save_set.y = set->crtc->y;
9237 save_set.fb = set->crtc->fb;
9238
9239 /* Compute whether we need a full modeset, only an fb base update or no
9240 * change at all. In the future we might also check whether only the
9241 * mode changed, e.g. for LVDS where we only change the panel fitter in
9242 * such cases. */
9243 intel_set_config_compute_mode_changes(set, config);
9244
9a935856 9245 ret = intel_modeset_stage_output_state(dev, set, config);
2e431051
DV		 9246 if (ret)
9247 goto fail;
9248
5e2b584e 9249 if (config->mode_changed) {
c0c36b94
CW		 9250 ret = intel_set_mode(set->crtc, set->mode,
9251 set->x, set->y, set->fb);
5e2b584e 9252 } else if (config->fb_changed) {
4878cae2
VS		 9253 intel_crtc_wait_for_pending_flips(set->crtc);
9254
4f660f49 9255 ret = intel_pipe_set_base(set->crtc,
94352cf9 9256 set->x, set->y, set->fb);
50f56119
DV		 9257 }
9258
2d05eae1 9259 if (ret) {
bf67dfeb
DV		 9260 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
9261 set->crtc->base.id, ret);
50f56119 9262fail:
2d05eae1 9263 intel_set_config_restore_state(dev, config);
50f56119 9264
2d05eae1
CW		 9265 /* Try to restore the config */
9266 if (config->mode_changed &&
9267 intel_set_mode(save_set.crtc, save_set.mode,
9268 save_set.x, save_set.y, save_set.fb))
9269 DRM_ERROR("failed to restore config after modeset failure\n");
9270 }
50f56119 9271
d9e55608
DV		 9272out_config:
9273 intel_set_config_free(config);
50f56119
DV		 9274 return ret;
9275}
f6e5b160
CW		 9276
9277static const struct drm_crtc_funcs intel_crtc_funcs = {
f6e5b160
CW		 9278 .cursor_set = intel_crtc_cursor_set,
9279 .cursor_move = intel_crtc_cursor_move,
9280 .gamma_set = intel_crtc_gamma_set,
50f56119 9281 .set_config = intel_crtc_set_config,
f6e5b160
CW		 9282 .destroy = intel_crtc_destroy,
9283 .page_flip = intel_crtc_page_flip,
9284};
9285
79f689aa
PZ		 9286static void intel_cpu_pll_init(struct drm_device *dev)
9287{
affa9354 9288 if (HAS_DDI(dev))
79f689aa
PZ		 9289 intel_ddi_pll_init(dev);
9290}
9291
5358901f
DV		 9292static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv,
9293 struct intel_shared_dpll *pll,
9294 struct intel_dpll_hw_state *hw_state)
ee7b9f93 9295{
5358901f 9296 uint32_t val;
ee7b9f93 9297
5358901f 9298 val = I915_READ(PCH_DPLL(pll->id));
66e985c0
DV		 9299 hw_state->dpll = val;
9300 hw_state->fp0 = I915_READ(PCH_FP0(pll->id));
9301 hw_state->fp1 = I915_READ(PCH_FP1(pll->id));
5358901f
DV		 9302
9303 return val & DPLL_VCO_ENABLE;
9304}
9305
15bdd4cf
DV		 9306static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv,
9307 struct intel_shared_dpll *pll)
9308{
9309 I915_WRITE(PCH_FP0(pll->id), pll->hw_state.fp0);
9310 I915_WRITE(PCH_FP1(pll->id), pll->hw_state.fp1);
9311}
9312
e7b903d2
DV		 9313static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv,
9314 struct intel_shared_dpll *pll)
9315{
e7b903d2
DV		 9316 /* PCH refclock must be enabled first */
9317 assert_pch_refclk_enabled(dev_priv);
9318
15bdd4cf
DV		 9319 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
9320
9321 /* Wait for the clocks to stabilize. */
9322 POSTING_READ(PCH_DPLL(pll->id));
9323 udelay(150);
9324
9325 /* The pixel multiplier can only be updated once the
9326 * DPLL is enabled and the clocks are stable.
9327 *
9328 * So write it again.
9329 */
9330 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
9331 POSTING_READ(PCH_DPLL(pll->id));
e7b903d2
DV		 9332 udelay(200);
9333}
9334
9335static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv,
9336 struct intel_shared_dpll *pll)
9337{
9338 struct drm_device *dev = dev_priv->dev;
9339 struct intel_crtc *crtc;
e7b903d2
DV		 9340
9341 /* Make sure no transcoder isn't still depending on us. */
9342 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
9343 if (intel_crtc_to_shared_dpll(crtc) == pll)
9344 assert_pch_transcoder_disabled(dev_priv, crtc->pipe);
ee7b9f93
JB		 9345 }
9346
15bdd4cf
DV		 9347 I915_WRITE(PCH_DPLL(pll->id), 0);
9348 POSTING_READ(PCH_DPLL(pll->id));
e7b903d2
DV		 9349 udelay(200);
9350}
9351
46edb027
DV		 9352static char *ibx_pch_dpll_names[] = {
9353 "PCH DPLL A",
9354 "PCH DPLL B",
9355};
9356
7c74ade1 9357static void ibx_pch_dpll_init(struct drm_device *dev)
ee7b9f93 9358{
e7b903d2 9359 struct drm_i915_private *dev_priv = dev->dev_private;
ee7b9f93
JB		 9360 int i;
9361
7c74ade1 9362 dev_priv->num_shared_dpll = 2;
ee7b9f93 9363
e72f9fbf 9364 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
46edb027
DV		 9365 dev_priv->shared_dplls[i].id = i;
9366 dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i];
15bdd4cf 9367 dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set;
e7b903d2
DV		 9368 dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable;
9369 dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable;
5358901f
DV		 9370 dev_priv->shared_dplls[i].get_hw_state =
9371 ibx_pch_dpll_get_hw_state;
ee7b9f93
JB		 9372 }
9373}
9374
7c74ade1
DV		 9375static void intel_shared_dpll_init(struct drm_device *dev)
9376{
e7b903d2 9377 struct drm_i915_private *dev_priv = dev->dev_private;
7c74ade1
DV		 9378
9379 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
9380 ibx_pch_dpll_init(dev);
9381 else
9382 dev_priv->num_shared_dpll = 0;
9383
9384 BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS);
9385 DRM_DEBUG_KMS("%i shared PLLs initialized\n",
9386 dev_priv->num_shared_dpll);
9387}
9388
b358d0a6 9389static void intel_crtc_init(struct drm_device *dev, int pipe)
79e53945 9390{
22fd0fab 9391 drm_i915_private_t *dev_priv = dev->dev_private;
79e53945
JB		 9392 struct intel_crtc *intel_crtc;
9393 int i;
9394
9395 intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
9396 if (intel_crtc == NULL)
9397 return;
9398
9399 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
9400
9401 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
79e53945
JB		 9402 for (i = 0; i < 256; i++) {
9403 intel_crtc->lut_r[i] = i;
9404 intel_crtc->lut_g[i] = i;
9405 intel_crtc->lut_b[i] = i;
9406 }
9407
80824003
JB		 9408 /* Swap pipes & planes for FBC on pre-965 */
9409 intel_crtc->pipe = pipe;
9410 intel_crtc->plane = pipe;
e2e767ab 9411 if (IS_MOBILE(dev) && IS_GEN3(dev)) {
28c97730 9412 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
e2e767ab 9413 intel_crtc->plane = !pipe;
80824003
JB		 9414 }
9415
22fd0fab
JB		 9416 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
9417 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
9418 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
9419 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
9420
79e53945 9421 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
79e53945
JB		 9422}
9423
08d7b3d1 9424int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
05394f39 9425 struct drm_file *file)
08d7b3d1 9426{
08d7b3d1 9427 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
c05422d5
DV		 9428 struct drm_mode_object *drmmode_obj;
9429 struct intel_crtc *crtc;
08d7b3d1 9430
1cff8f6b
DV		 9431 if (!drm_core_check_feature(dev, DRIVER_MODESET))
9432 return -ENODEV;
08d7b3d1 9433
c05422d5
DV		 9434 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
9435 DRM_MODE_OBJECT_CRTC);
08d7b3d1 9436
c05422d5 9437 if (!drmmode_obj) {
08d7b3d1
CW		 9438 DRM_ERROR("no such CRTC id\n");
9439 return -EINVAL;
9440 }
9441
c05422d5
DV		 9442 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
9443 pipe_from_crtc_id->pipe = crtc->pipe;
08d7b3d1 9444
c05422d5 9445 return 0;
08d7b3d1
CW		 9446}
9447
66a9278e 9448static int intel_encoder_clones(struct intel_encoder *encoder)
79e53945 9449{
66a9278e
DV		 9450 struct drm_device *dev = encoder->base.dev;
9451 struct intel_encoder *source_encoder;
79e53945 9452 int index_mask = 0;
79e53945
JB		 9453 int entry = 0;
9454
66a9278e
DV		 9455 list_for_each_entry(source_encoder,
9456 &dev->mode_config.encoder_list, base.head) {
9457
9458 if (encoder == source_encoder)
79e53945 9459 index_mask |= (1 << entry);
66a9278e
DV		 9460
9461 /* Intel hw has only one MUX where enocoders could be cloned. */
9462 if (encoder->cloneable && source_encoder->cloneable)
9463 index_mask |= (1 << entry);
9464
79e53945
JB		 9465 entry++;
9466 }
4ef69c7a 9467
79e53945
JB		 9468 return index_mask;
9469}
9470
4d302442
CW		 9471static bool has_edp_a(struct drm_device *dev)
9472{
9473 struct drm_i915_private *dev_priv = dev->dev_private;
9474
9475 if (!IS_MOBILE(dev))
9476 return false;
9477
9478 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
9479 return false;
9480
9481 if (IS_GEN5(dev) &&
9482 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
9483 return false;
9484
9485 return true;
9486}
9487
79e53945
JB		 9488static void intel_setup_outputs(struct drm_device *dev)
9489{
725e30ad 9490 struct drm_i915_private *dev_priv = dev->dev_private;
4ef69c7a 9491 struct intel_encoder *encoder;
cb0953d7 9492 bool dpd_is_edp = false;
79e53945 9493
c9093354 9494 intel_lvds_init(dev);
79e53945 9495
c40c0f5b 9496 if (!IS_ULT(dev))
79935fca 9497 intel_crt_init(dev);
cb0953d7 9498
affa9354 9499 if (HAS_DDI(dev)) {
0e72a5b5
ED		 9500 int found;
9501
9502 /* Haswell uses DDI functions to detect digital outputs */
9503 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
9504 /* DDI A only supports eDP */
9505 if (found)
9506 intel_ddi_init(dev, PORT_A);
9507
9508 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
9509 * register */
9510 found = I915_READ(SFUSE_STRAP);
9511
9512 if (found & SFUSE_STRAP_DDIB_DETECTED)
9513 intel_ddi_init(dev, PORT_B);
9514 if (found & SFUSE_STRAP_DDIC_DETECTED)
9515 intel_ddi_init(dev, PORT_C);
9516 if (found & SFUSE_STRAP_DDID_DETECTED)
9517 intel_ddi_init(dev, PORT_D);
9518 } else if (HAS_PCH_SPLIT(dev)) {
cb0953d7 9519 int found;
270b3042
DV		 9520 dpd_is_edp = intel_dpd_is_edp(dev);
9521
9522 if (has_edp_a(dev))
9523 intel_dp_init(dev, DP_A, PORT_A);
cb0953d7 9524
dc0fa718 9525 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
461ed3ca 9526 /* PCH SDVOB multiplex with HDMIB */
eef4eacb 9527 found = intel_sdvo_init(dev, PCH_SDVOB, true);
30ad48b7 9528 if (!found)
e2debe91 9529 intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
5eb08b69 9530 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
ab9d7c30 9531 intel_dp_init(dev, PCH_DP_B, PORT_B);
30ad48b7
ZW		 9532 }
9533
dc0fa718 9534 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
e2debe91 9535 intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
30ad48b7 9536
dc0fa718 9537 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
e2debe91 9538 intel_hdmi_init(dev, PCH_HDMID, PORT_D);
30ad48b7 9539
5eb08b69 9540 if (I915_READ(PCH_DP_C) & DP_DETECTED)
ab9d7c30 9541 intel_dp_init(dev, PCH_DP_C, PORT_C);
5eb08b69 9542
270b3042 9543 if (I915_READ(PCH_DP_D) & DP_DETECTED)
ab9d7c30 9544 intel_dp_init(dev, PCH_DP_D, PORT_D);
4a87d65d 9545 } else if (IS_VALLEYVIEW(dev)) {
19c03924 9546 /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */
6f6005a5
JB		 9547 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED) {
9548 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC,
9549 PORT_C);
9550 if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
9551 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C,
9552 PORT_C);
9553 }
19c03924 9554
dc0fa718 9555 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
e2debe91
PZ		 9556 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
9557 PORT_B);
67cfc203
VS		 9558 if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
9559 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
4a87d65d 9560 }
103a196f 9561 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
27185ae1 9562 bool found = false;
7d57382e 9563
e2debe91 9564 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
b01f2c3a 9565 DRM_DEBUG_KMS("probing SDVOB\n");
e2debe91 9566 found = intel_sdvo_init(dev, GEN3_SDVOB, true);
b01f2c3a
JB		 9567 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
9568 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
e2debe91 9569 intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
b01f2c3a 9570 }
27185ae1 9571
e7281eab 9572 if (!found && SUPPORTS_INTEGRATED_DP(dev))
ab9d7c30 9573 intel_dp_init(dev, DP_B, PORT_B);
725e30ad 9574 }
13520b05
KH		 9575
9576 /* Before G4X SDVOC doesn't have its own detect register */
13520b05 9577
e2debe91 9578 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
b01f2c3a 9579 DRM_DEBUG_KMS("probing SDVOC\n");
e2debe91 9580 found = intel_sdvo_init(dev, GEN3_SDVOC, false);
b01f2c3a 9581 }
27185ae1 9582
e2debe91 9583 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
27185ae1 9584
b01f2c3a
JB		 9585 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
9586 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
e2debe91 9587 intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
b01f2c3a 9588 }
e7281eab 9589 if (SUPPORTS_INTEGRATED_DP(dev))
ab9d7c30 9590 intel_dp_init(dev, DP_C, PORT_C);
725e30ad 9591 }
27185ae1 9592
b01f2c3a 9593 if (SUPPORTS_INTEGRATED_DP(dev) &&
e7281eab 9594 (I915_READ(DP_D) & DP_DETECTED))
ab9d7c30 9595 intel_dp_init(dev, DP_D, PORT_D);
bad720ff 9596 } else if (IS_GEN2(dev))
79e53945
JB		 9597 intel_dvo_init(dev);
9598
103a196f 9599 if (SUPPORTS_TV(dev))
79e53945
JB		 9600 intel_tv_init(dev);
9601
4ef69c7a
CW		 9602 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
9603 encoder->base.possible_crtcs = encoder->crtc_mask;
9604 encoder->base.possible_clones =
66a9278e 9605 intel_encoder_clones(encoder);
79e53945 9606 }
47356eb6 9607
dde86e2d 9608 intel_init_pch_refclk(dev);
270b3042
DV		 9609
9610 drm_helper_move_panel_connectors_to_head(dev);
79e53945
JB		 9611}
9612
ddfe1567
CW		 9613void intel_framebuffer_fini(struct intel_framebuffer *fb)
9614{
9615 drm_framebuffer_cleanup(&fb->base);
9616 drm_gem_object_unreference_unlocked(&fb->obj->base);
9617}
9618
79e53945
JB		 9619static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
9620{
9621 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
79e53945 9622
ddfe1567 9623 intel_framebuffer_fini(intel_fb);
79e53945
JB		 9624 kfree(intel_fb);
9625}
9626
9627static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
05394f39 9628 struct drm_file *file,
79e53945
JB		 9629 unsigned int *handle)
9630{
9631 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
05394f39 9632 struct drm_i915_gem_object *obj = intel_fb->obj;
79e53945 9633
05394f39 9634 return drm_gem_handle_create(file, &obj->base, handle);
79e53945
JB		 9635}
9636
9637static const struct drm_framebuffer_funcs intel_fb_funcs = {
9638 .destroy = intel_user_framebuffer_destroy,
9639 .create_handle = intel_user_framebuffer_create_handle,
9640};
9641
38651674
DA		 9642int intel_framebuffer_init(struct drm_device *dev,
9643 struct intel_framebuffer *intel_fb,
308e5bcb 9644 struct drm_mode_fb_cmd2 *mode_cmd,
05394f39 9645 struct drm_i915_gem_object *obj)
79e53945 9646{
a35cdaa0 9647 int pitch_limit;
79e53945
JB		 9648 int ret;
9649
c16ed4be
CW		 9650 if (obj->tiling_mode == I915_TILING_Y) {
9651 DRM_DEBUG("hardware does not support tiling Y\n");
57cd6508 9652 return -EINVAL;
c16ed4be 9653 }
57cd6508 9654
c16ed4be
CW		 9655 if (mode_cmd->pitches[0] & 63) {
9656 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
9657 mode_cmd->pitches[0]);
57cd6508 9658 return -EINVAL;
c16ed4be 9659 }
57cd6508 9660
a35cdaa0
CW		 9661 if (INTEL_INFO(dev)->gen >= 5 && !IS_VALLEYVIEW(dev)) {
9662 pitch_limit = 32*1024;
9663 } else if (INTEL_INFO(dev)->gen >= 4) {
9664 if (obj->tiling_mode)
9665 pitch_limit = 16*1024;
9666 else
9667 pitch_limit = 32*1024;
9668 } else if (INTEL_INFO(dev)->gen >= 3) {
9669 if (obj->tiling_mode)
9670 pitch_limit = 8*1024;
9671 else
9672 pitch_limit = 16*1024;
9673 } else
9674 /* XXX DSPC is limited to 4k tiled */
9675 pitch_limit = 8*1024;
9676
9677 if (mode_cmd->pitches[0] > pitch_limit) {
9678 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
9679 obj->tiling_mode ? "tiled" : "linear",
9680 mode_cmd->pitches[0], pitch_limit);
5d7bd705 9681 return -EINVAL;
c16ed4be 9682 }
5d7bd705
VS		 9683
9684 if (obj->tiling_mode != I915_TILING_NONE &&
c16ed4be
CW		 9685 mode_cmd->pitches[0] != obj->stride) {
9686 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
9687 mode_cmd->pitches[0], obj->stride);
5d7bd705 9688 return -EINVAL;
c16ed4be 9689 }
5d7bd705 9690
57779d06 9691 /* Reject formats not supported by any plane early. */
308e5bcb 9692 switch (mode_cmd->pixel_format) {
57779d06 9693 case DRM_FORMAT_C8:
04b3924d
VS		 9694 case DRM_FORMAT_RGB565:
9695 case DRM_FORMAT_XRGB8888:
9696 case DRM_FORMAT_ARGB8888:
57779d06
VS		 9697 break;
9698 case DRM_FORMAT_XRGB1555:
9699 case DRM_FORMAT_ARGB1555:
c16ed4be 9700 if (INTEL_INFO(dev)->gen > 3) {
4ee62c76
VS		 9701 DRM_DEBUG("unsupported pixel format: %s\n",
9702 drm_get_format_name(mode_cmd->pixel_format));
57779d06 9703 return -EINVAL;
c16ed4be 9704 }
57779d06
VS		 9705 break;
9706 case DRM_FORMAT_XBGR8888:
9707 case DRM_FORMAT_ABGR8888:
04b3924d
VS		 9708 case DRM_FORMAT_XRGB2101010:
9709 case DRM_FORMAT_ARGB2101010:
57779d06
VS		 9710 case DRM_FORMAT_XBGR2101010:
9711 case DRM_FORMAT_ABGR2101010:
c16ed4be 9712 if (INTEL_INFO(dev)->gen < 4) {
4ee62c76
VS		 9713 DRM_DEBUG("unsupported pixel format: %s\n",
9714 drm_get_format_name(mode_cmd->pixel_format));
57779d06 9715 return -EINVAL;
c16ed4be 9716 }
b5626747 9717 break;
04b3924d
VS		 9718 case DRM_FORMAT_YUYV:
9719 case DRM_FORMAT_UYVY:
9720 case DRM_FORMAT_YVYU:
9721 case DRM_FORMAT_VYUY:
c16ed4be 9722 if (INTEL_INFO(dev)->gen < 5) {
4ee62c76
VS		 9723 DRM_DEBUG("unsupported pixel format: %s\n",
9724 drm_get_format_name(mode_cmd->pixel_format));
57779d06 9725 return -EINVAL;
c16ed4be 9726 }
57cd6508
CW		 9727 break;
9728 default:
4ee62c76
VS		 9729 DRM_DEBUG("unsupported pixel format: %s\n",
9730 drm_get_format_name(mode_cmd->pixel_format));
57cd6508
CW		 9731 return -EINVAL;
9732 }
9733
90f9a336
VS		 9734 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
9735 if (mode_cmd->offsets[0] != 0)
9736 return -EINVAL;
9737
c7d73f6a
DV		 9738 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
9739 intel_fb->obj = obj;
9740
79e53945
JB		 9741 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
9742 if (ret) {
9743 DRM_ERROR("framebuffer init failed %d\n", ret);
9744 return ret;
9745 }
9746
79e53945
JB		 9747 return 0;
9748}
9749
79e53945
JB		 9750static struct drm_framebuffer *
9751intel_user_framebuffer_create(struct drm_device *dev,
9752 struct drm_file *filp,
308e5bcb 9753 struct drm_mode_fb_cmd2 *mode_cmd)
79e53945 9754{
05394f39 9755 struct drm_i915_gem_object *obj;
79e53945 9756
308e5bcb
JB		 9757 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
9758 mode_cmd->handles[0]));
c8725226 9759 if (&obj->base == NULL)
cce13ff7 9760 return ERR_PTR(-ENOENT);
79e53945 9761
d2dff872 9762 return intel_framebuffer_create(dev, mode_cmd, obj);
79e53945
JB		 9763}
9764
79e53945 9765static const struct drm_mode_config_funcs intel_mode_funcs = {
79e53945 9766 .fb_create = intel_user_framebuffer_create,
eb1f8e4f 9767 .output_poll_changed = intel_fb_output_poll_changed,
79e53945
JB		 9768};
9769
e70236a8
JB		 9770/* Set up chip specific display functions */
9771static void intel_init_display(struct drm_device *dev)
9772{
9773 struct drm_i915_private *dev_priv = dev->dev_private;
9774
ee9300bb
DV		 9775 if (HAS_PCH_SPLIT(dev) || IS_G4X(dev))
9776 dev_priv->display.find_dpll = g4x_find_best_dpll;
9777 else if (IS_VALLEYVIEW(dev))
9778 dev_priv->display.find_dpll = vlv_find_best_dpll;
9779 else if (IS_PINEVIEW(dev))
9780 dev_priv->display.find_dpll = pnv_find_best_dpll;
9781 else
9782 dev_priv->display.find_dpll = i9xx_find_best_dpll;
9783
affa9354 9784 if (HAS_DDI(dev)) {
0e8ffe1b 9785 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
09b4ddf9 9786 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
4f771f10
PZ		 9787 dev_priv->display.crtc_enable = haswell_crtc_enable;
9788 dev_priv->display.crtc_disable = haswell_crtc_disable;
6441ab5f 9789 dev_priv->display.off = haswell_crtc_off;
09b4ddf9
PZ		 9790 dev_priv->display.update_plane = ironlake_update_plane;
9791 } else if (HAS_PCH_SPLIT(dev)) {
0e8ffe1b 9792 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
f1f644dc 9793 dev_priv->display.get_clock = ironlake_crtc_clock_get;
f564048e 9794 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
76e5a89c
DV		 9795 dev_priv->display.crtc_enable = ironlake_crtc_enable;
9796 dev_priv->display.crtc_disable = ironlake_crtc_disable;
ee7b9f93 9797 dev_priv->display.off = ironlake_crtc_off;
17638cd6 9798 dev_priv->display.update_plane = ironlake_update_plane;
89b667f8
JB		 9799 } else if (IS_VALLEYVIEW(dev)) {
9800 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
f1f644dc 9801 dev_priv->display.get_clock = i9xx_crtc_clock_get;
89b667f8
JB		 9802 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
9803 dev_priv->display.crtc_enable = valleyview_crtc_enable;
9804 dev_priv->display.crtc_disable = i9xx_crtc_disable;
9805 dev_priv->display.off = i9xx_crtc_off;
9806 dev_priv->display.update_plane = i9xx_update_plane;
f564048e 9807 } else {
0e8ffe1b 9808 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
f1f644dc 9809 dev_priv->display.get_clock = i9xx_crtc_clock_get;
f564048e 9810 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
76e5a89c
DV		 9811 dev_priv->display.crtc_enable = i9xx_crtc_enable;
9812 dev_priv->display.crtc_disable = i9xx_crtc_disable;
ee7b9f93 9813 dev_priv->display.off = i9xx_crtc_off;
17638cd6 9814 dev_priv->display.update_plane = i9xx_update_plane;
f564048e 9815 }
e70236a8 9816
e70236a8 9817 /* Returns the core display clock speed */
25eb05fc
JB		 9818 if (IS_VALLEYVIEW(dev))
9819 dev_priv->display.get_display_clock_speed =
9820 valleyview_get_display_clock_speed;
9821 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
e70236a8
JB		 9822 dev_priv->display.get_display_clock_speed =
9823 i945_get_display_clock_speed;
9824 else if (IS_I915G(dev))
9825 dev_priv->display.get_display_clock_speed =
9826 i915_get_display_clock_speed;
257a7ffc 9827 else if (IS_I945GM(dev) || IS_845G(dev))
e70236a8
JB		 9828 dev_priv->display.get_display_clock_speed =
9829 i9xx_misc_get_display_clock_speed;
257a7ffc
DV		 9830 else if (IS_PINEVIEW(dev))
9831 dev_priv->display.get_display_clock_speed =
9832 pnv_get_display_clock_speed;
e70236a8
JB		 9833 else if (IS_I915GM(dev))
9834 dev_priv->display.get_display_clock_speed =
9835 i915gm_get_display_clock_speed;
9836 else if (IS_I865G(dev))
9837 dev_priv->display.get_display_clock_speed =
9838 i865_get_display_clock_speed;
f0f8a9ce 9839 else if (IS_I85X(dev))
e70236a8
JB		 9840 dev_priv->display.get_display_clock_speed =
9841 i855_get_display_clock_speed;
9842 else /* 852, 830 */
9843 dev_priv->display.get_display_clock_speed =
9844 i830_get_display_clock_speed;
9845
7f8a8569 9846 if (HAS_PCH_SPLIT(dev)) {
f00a3ddf 9847 if (IS_GEN5(dev)) {
674cf967 9848 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
e0dac65e 9849 dev_priv->display.write_eld = ironlake_write_eld;
1398261a 9850 } else if (IS_GEN6(dev)) {
674cf967 9851 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
e0dac65e 9852 dev_priv->display.write_eld = ironlake_write_eld;
357555c0
JB		 9853 } else if (IS_IVYBRIDGE(dev)) {
9854 /* FIXME: detect B0+ stepping and use auto training */
9855 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
e0dac65e 9856 dev_priv->display.write_eld = ironlake_write_eld;
01a415fd
DV		 9857 dev_priv->display.modeset_global_resources =
9858 ivb_modeset_global_resources;
c82e4d26
ED		 9859 } else if (IS_HASWELL(dev)) {
9860 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
83358c85 9861 dev_priv->display.write_eld = haswell_write_eld;
d6dd9eb1
DV		 9862 dev_priv->display.modeset_global_resources =
9863 haswell_modeset_global_resources;
a0e63c22 9864 }
6067aaea 9865 } else if (IS_G4X(dev)) {
e0dac65e 9866 dev_priv->display.write_eld = g4x_write_eld;
e70236a8 9867 }
8c9f3aaf
JB		 9868
9869 /* Default just returns -ENODEV to indicate unsupported */
9870 dev_priv->display.queue_flip = intel_default_queue_flip;
9871
9872 switch (INTEL_INFO(dev)->gen) {
9873 case 2:
9874 dev_priv->display.queue_flip = intel_gen2_queue_flip;
9875 break;
9876
9877 case 3:
9878 dev_priv->display.queue_flip = intel_gen3_queue_flip;
9879 break;
9880
9881 case 4:
9882 case 5:
9883 dev_priv->display.queue_flip = intel_gen4_queue_flip;
9884 break;
9885
9886 case 6:
9887 dev_priv->display.queue_flip = intel_gen6_queue_flip;
9888 break;
7c9017e5
JB		 9889 case 7:
9890 dev_priv->display.queue_flip = intel_gen7_queue_flip;
9891 break;
8c9f3aaf 9892 }
e70236a8
JB		 9893}
9894
b690e96c
JB		 9895/*
9896 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
9897 * resume, or other times. This quirk makes sure that's the case for
9898 * affected systems.
9899 */
0206e353 9900static void quirk_pipea_force(struct drm_device *dev)
b690e96c
JB		 9901{
9902 struct drm_i915_private *dev_priv = dev->dev_private;
9903
9904 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
bc0daf48 9905 DRM_INFO("applying pipe a force quirk\n");
b690e96c
JB		 9906}
9907
435793df
KP		 9908/*
9909 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
9910 */
9911static void quirk_ssc_force_disable(struct drm_device *dev)
9912{
9913 struct drm_i915_private *dev_priv = dev->dev_private;
9914 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
bc0daf48 9915 DRM_INFO("applying lvds SSC disable quirk\n");
435793df
KP		 9916}
9917
4dca20ef 9918/*
5a15ab5b
CE		 9919 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
9920 * brightness value
4dca20ef
CE		 9921 */
9922static void quirk_invert_brightness(struct drm_device *dev)
9923{
9924 struct drm_i915_private *dev_priv = dev->dev_private;
9925 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
bc0daf48 9926 DRM_INFO("applying inverted panel brightness quirk\n");
435793df
KP		 9927}
9928
e85843be
KM		 9929/*
9930 * Some machines (Dell XPS13) suffer broken backlight controls if
9931 * BLM_PCH_PWM_ENABLE is set.
9932 */
9933static void quirk_no_pcm_pwm_enable(struct drm_device *dev)
9934{
9935 struct drm_i915_private *dev_priv = dev->dev_private;
9936 dev_priv->quirks |= QUIRK_NO_PCH_PWM_ENABLE;
9937 DRM_INFO("applying no-PCH_PWM_ENABLE quirk\n");
9938}
9939
b690e96c
JB		 9940struct intel_quirk {
9941 int device;
9942 int subsystem_vendor;
9943 int subsystem_device;
9944 void (*hook)(struct drm_device *dev);
9945};
9946
5f85f176
EE		 9947/* For systems that don't have a meaningful PCI subdevice/subvendor ID */
9948struct intel_dmi_quirk {
9949 void (*hook)(struct drm_device *dev);
9950 const struct dmi_system_id (*dmi_id_list)[];
9951};
9952
9953static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
9954{
9955 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
9956 return 1;
9957}
9958
9959static const struct intel_dmi_quirk intel_dmi_quirks[] = {
9960 {
9961 .dmi_id_list = &(const struct dmi_system_id[]) {
9962 {
9963 .callback = intel_dmi_reverse_brightness,
9964 .ident = "NCR Corporation",
9965 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
9966 DMI_MATCH(DMI_PRODUCT_NAME, ""),
9967 },
9968 },
9969 { } /* terminating entry */
9970 },
9971 .hook = quirk_invert_brightness,
9972 },
9973};
9974
c43b5634 9975static struct intel_quirk intel_quirks[] = {
b690e96c 9976 /* HP Mini needs pipe A force quirk (LP: #322104) */
0206e353 9977 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
b690e96c 9978
b690e96c
JB		 9979 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
9980 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
9981
b690e96c
JB		 9982 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
9983 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
9984
ccd0d36e 9985 /* 830/845 need to leave pipe A & dpll A up */
b690e96c 9986 { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
dcdaed6e 9987 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
435793df
KP		 9988
9989 /* Lenovo U160 cannot use SSC on LVDS */
9990 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
070d329a
MAS		 9991
9992 /* Sony Vaio Y cannot use SSC on LVDS */
9993 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
5a15ab5b
CE		 9994
9995 /* Acer Aspire 5734Z must invert backlight brightness */
9996 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
1ffff603
JN		 9997
9998 /* Acer/eMachines G725 */
9999 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
01e3a8fe
JN		 10000
10001 /* Acer/eMachines e725 */
10002 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
5559ecad
JN		 10003
10004 /* Acer/Packard Bell NCL20 */
10005 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
ac4199e0
DV		 10006
10007 /* Acer Aspire 4736Z */
10008 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
e85843be
KM		 10009
10010 /* Dell XPS13 HD Sandy Bridge */
10011 { 0x0116, 0x1028, 0x052e, quirk_no_pcm_pwm_enable },
10012 /* Dell XPS13 HD and XPS13 FHD Ivy Bridge */
10013 { 0x0166, 0x1028, 0x058b, quirk_no_pcm_pwm_enable },
b690e96c
JB		 10014};
10015
10016static void intel_init_quirks(struct drm_device *dev)
10017{
10018 struct pci_dev *d = dev->pdev;
10019 int i;
10020
10021 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
10022 struct intel_quirk *q = &intel_quirks[i];
10023
10024 if (d->device == q->device &&
10025 (d->subsystem_vendor == q->subsystem_vendor ||
10026 q->subsystem_vendor == PCI_ANY_ID) &&
10027 (d->subsystem_device == q->subsystem_device ||
10028 q->subsystem_device == PCI_ANY_ID))
10029 q->hook(dev);
10030 }
5f85f176
EE		 10031 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
10032 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
10033 intel_dmi_quirks[i].hook(dev);
10034 }
b690e96c
JB		 10035}
10036
9cce37f4
JB		 10037/* Disable the VGA plane that we never use */
10038static void i915_disable_vga(struct drm_device *dev)
10039{
10040 struct drm_i915_private *dev_priv = dev->dev_private;
10041 u8 sr1;
766aa1c4 10042 u32 vga_reg = i915_vgacntrl_reg(dev);
9cce37f4
JB		 10043
10044 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
3fdcf431 10045 outb(SR01, VGA_SR_INDEX);
9cce37f4
JB		 10046 sr1 = inb(VGA_SR_DATA);
10047 outb(sr1 | 1<<5, VGA_SR_DATA);
10048 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10049 udelay(300);
10050
10051 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
10052 POSTING_READ(vga_reg);
10053}
10054
6e1b4fda 10055static void i915_enable_vga_mem(struct drm_device *dev)
81b5c7bc
AW		 10056{
10057 /* Enable VGA memory on Intel HD */
10058 if (HAS_PCH_SPLIT(dev)) {
10059 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
10060 outb(inb(VGA_MSR_READ) | VGA_MSR_MEM_EN, VGA_MSR_WRITE);
10061 vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO |
10062 VGA_RSRC_LEGACY_MEM |
10063 VGA_RSRC_NORMAL_IO |
10064 VGA_RSRC_NORMAL_MEM);
10065 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10066 }
10067}
10068
6e1b4fda
VS		 10069void i915_disable_vga_mem(struct drm_device *dev)
10070{
10071 /* Disable VGA memory on Intel HD */
10072 if (HAS_PCH_SPLIT(dev)) {
10073 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
10074 outb(inb(VGA_MSR_READ) & ~VGA_MSR_MEM_EN, VGA_MSR_WRITE);
10075 vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO |
10076 VGA_RSRC_NORMAL_IO |
10077 VGA_RSRC_NORMAL_MEM);
10078 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10079 }
10080}
10081
f817586c
DV		 10082void intel_modeset_init_hw(struct drm_device *dev)
10083{
fa42e23c 10084 intel_init_power_well(dev);
0232e927 10085
a8f78b58
ED		 10086 intel_prepare_ddi(dev);
10087
f817586c
DV		 10088 intel_init_clock_gating(dev);
10089
79f5b2c7 10090 mutex_lock(&dev->struct_mutex);
8090c6b9 10091 intel_enable_gt_powersave(dev);
79f5b2c7 10092 mutex_unlock(&dev->struct_mutex);
f817586c
DV		 10093}
10094
7d708ee4
ID		 10095void intel_modeset_suspend_hw(struct drm_device *dev)
10096{
10097 intel_suspend_hw(dev);
10098}
10099
79e53945
JB		 10100void intel_modeset_init(struct drm_device *dev)
10101{
652c393a 10102 struct drm_i915_private *dev_priv = dev->dev_private;
7f1f3851 10103 int i, j, ret;
79e53945
JB		 10104
10105 drm_mode_config_init(dev);
10106
10107 dev->mode_config.min_width = 0;
10108 dev->mode_config.min_height = 0;
10109
019d96cb
DA		 10110 dev->mode_config.preferred_depth = 24;
10111 dev->mode_config.prefer_shadow = 1;
10112
e6ecefaa 10113 dev->mode_config.funcs = &intel_mode_funcs;
79e53945 10114
b690e96c
JB		 10115 intel_init_quirks(dev);
10116
1fa61106
ED		 10117 intel_init_pm(dev);
10118
e3c74757
BW		 10119 if (INTEL_INFO(dev)->num_pipes == 0)
10120 return;
10121
e70236a8
JB		 10122 intel_init_display(dev);
10123
a6c45cf0
CW		 10124 if (IS_GEN2(dev)) {
10125 dev->mode_config.max_width = 2048;
10126 dev->mode_config.max_height = 2048;
10127 } else if (IS_GEN3(dev)) {
5e4d6fa7
KP		 10128 dev->mode_config.max_width = 4096;
10129 dev->mode_config.max_height = 4096;
79e53945 10130 } else {
a6c45cf0
CW		 10131 dev->mode_config.max_width = 8192;
10132 dev->mode_config.max_height = 8192;
79e53945 10133 }
5d4545ae 10134 dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
79e53945 10135
28c97730 10136 DRM_DEBUG_KMS("%d display pipe%s available.\n",
7eb552ae
BW		 10137 INTEL_INFO(dev)->num_pipes,
10138 INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
79e53945 10139
08e2a7de 10140 for_each_pipe(i) {
79e53945 10141 intel_crtc_init(dev, i);
7f1f3851
JB		 10142 for (j = 0; j < dev_priv->num_plane; j++) {
10143 ret = intel_plane_init(dev, i, j);
10144 if (ret)
06da8da2
VS		 10145 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
10146 pipe_name(i), sprite_name(i, j), ret);
7f1f3851 10147 }
79e53945
JB		 10148 }
10149
79f689aa 10150 intel_cpu_pll_init(dev);
e72f9fbf 10151 intel_shared_dpll_init(dev);
ee7b9f93 10152
9cce37f4
JB		 10153 /* Just disable it once at startup */
10154 i915_disable_vga(dev);
79e53945 10155 intel_setup_outputs(dev);
11be49eb
CW		 10156
10157 /* Just in case the BIOS is doing something questionable. */
10158 intel_disable_fbc(dev);
2c7111db
CW		 10159}
10160
24929352
DV		 10161static void
10162intel_connector_break_all_links(struct intel_connector *connector)
10163{
10164 connector->base.dpms = DRM_MODE_DPMS_OFF;
10165 connector->base.encoder = NULL;
10166 connector->encoder->connectors_active = false;
10167 connector->encoder->base.crtc = NULL;
10168}
10169
7fad798e
DV		 10170static void intel_enable_pipe_a(struct drm_device *dev)
10171{
10172 struct intel_connector *connector;
10173 struct drm_connector *crt = NULL;
10174 struct intel_load_detect_pipe load_detect_temp;
10175
10176 /* We can't just switch on the pipe A, we need to set things up with a
10177 * proper mode and output configuration. As a gross hack, enable pipe A
10178 * by enabling the load detect pipe once. */
10179 list_for_each_entry(connector,
10180 &dev->mode_config.connector_list,
10181 base.head) {
10182 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
10183 crt = &connector->base;
10184 break;
10185 }
10186 }
10187
10188 if (!crt)
10189 return;
10190
10191 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
10192 intel_release_load_detect_pipe(crt, &load_detect_temp);
10193
652c393a 10194
7fad798e
DV		 10195}
10196
fa555837
DV		 10197static bool
10198intel_check_plane_mapping(struct intel_crtc *crtc)
10199{
7eb552ae
BW		 10200 struct drm_device *dev = crtc->base.dev;
10201 struct drm_i915_private *dev_priv = dev->dev_private;
fa555837
DV		 10202 u32 reg, val;
10203
7eb552ae 10204 if (INTEL_INFO(dev)->num_pipes == 1)
fa555837
DV		 10205 return true;
10206
10207 reg = DSPCNTR(!crtc->plane);
10208 val = I915_READ(reg);
10209
10210 if ((val & DISPLAY_PLANE_ENABLE) &&
10211 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
10212 return false;
10213
10214 return true;
10215}
10216
24929352
DV		 10217static void intel_sanitize_crtc(struct intel_crtc *crtc)
10218{
10219 struct drm_device *dev = crtc->base.dev;
10220 struct drm_i915_private *dev_priv = dev->dev_private;
fa555837 10221 u32 reg;
24929352 10222
24929352 10223 /* Clear any frame start delays used for debugging left by the BIOS */
3b117c8f 10224 reg = PIPECONF(crtc->config.cpu_transcoder);
24929352
DV		 10225 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
10226
10227 /* We need to sanitize the plane -> pipe mapping first because this will
fa555837
DV		 10228 * disable the crtc (and hence change the state) if it is wrong. Note
10229 * that gen4+ has a fixed plane -> pipe mapping. */
10230 if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
24929352
DV		 10231 struct intel_connector *connector;
10232 bool plane;
10233
24929352
DV		 10234 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
10235 crtc->base.base.id);
10236
10237 /* Pipe has the wrong plane attached and the plane is active.
10238 * Temporarily change the plane mapping and disable everything
10239 * ... */
10240 plane = crtc->plane;
10241 crtc->plane = !plane;
10242 dev_priv->display.crtc_disable(&crtc->base);
10243 crtc->plane = plane;
10244
10245 /* ... and break all links. */
10246 list_for_each_entry(connector, &dev->mode_config.connector_list,
10247 base.head) {
10248 if (connector->encoder->base.crtc != &crtc->base)
10249 continue;
10250
10251 intel_connector_break_all_links(connector);
10252 }
10253
10254 WARN_ON(crtc->active);
10255 crtc->base.enabled = false;
10256 }
24929352 10257
7fad798e
DV		 10258 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
10259 crtc->pipe == PIPE_A && !crtc->active) {
10260 /* BIOS forgot to enable pipe A, this mostly happens after
10261 * resume. Force-enable the pipe to fix this, the update_dpms
10262 * call below we restore the pipe to the right state, but leave
10263 * the required bits on. */
10264 intel_enable_pipe_a(dev);
10265 }
10266
24929352
DV		 10267 /* Adjust the state of the output pipe according to whether we
10268 * have active connectors/encoders. */
10269 intel_crtc_update_dpms(&crtc->base);
10270
10271 if (crtc->active != crtc->base.enabled) {
10272 struct intel_encoder *encoder;
10273
10274 /* This can happen either due to bugs in the get_hw_state
10275 * functions or because the pipe is force-enabled due to the
10276 * pipe A quirk. */
10277 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
10278 crtc->base.base.id,
10279 crtc->base.enabled ? "enabled" : "disabled",
10280 crtc->active ? "enabled" : "disabled");
10281
10282 crtc->base.enabled = crtc->active;
10283
10284 /* Because we only establish the connector -> encoder ->
10285 * crtc links if something is active, this means the
10286 * crtc is now deactivated. Break the links. connector
10287 * -> encoder links are only establish when things are
10288 * actually up, hence no need to break them. */
10289 WARN_ON(crtc->active);
10290
10291 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
10292 WARN_ON(encoder->connectors_active);
10293 encoder->base.crtc = NULL;
10294 }
10295 }
10296}
10297
10298static void intel_sanitize_encoder(struct intel_encoder *encoder)
10299{
10300 struct intel_connector *connector;
10301 struct drm_device *dev = encoder->base.dev;
10302
10303 /* We need to check both for a crtc link (meaning that the
10304 * encoder is active and trying to read from a pipe) and the
10305 * pipe itself being active. */
10306 bool has_active_crtc = encoder->base.crtc &&
10307 to_intel_crtc(encoder->base.crtc)->active;
10308
10309 if (encoder->connectors_active && !has_active_crtc) {
10310 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
10311 encoder->base.base.id,
10312 drm_get_encoder_name(&encoder->base));
10313
10314 /* Connector is active, but has no active pipe. This is
10315 * fallout from our resume register restoring. Disable
10316 * the encoder manually again. */
10317 if (encoder->base.crtc) {
10318 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
10319 encoder->base.base.id,
10320 drm_get_encoder_name(&encoder->base));
10321 encoder->disable(encoder);
10322 }
10323
10324 /* Inconsistent output/port/pipe state happens presumably due to
10325 * a bug in one of the get_hw_state functions. Or someplace else
10326 * in our code, like the register restore mess on resume. Clamp
10327 * things to off as a safer default. */
10328 list_for_each_entry(connector,
10329 &dev->mode_config.connector_list,
10330 base.head) {
10331 if (connector->encoder != encoder)
10332 continue;
10333
10334 intel_connector_break_all_links(connector);
10335 }
10336 }
10337 /* Enabled encoders without active connectors will be fixed in
10338 * the crtc fixup. */
10339}
10340
44cec740 10341void i915_redisable_vga(struct drm_device *dev)
0fde901f
KM		 10342{
10343 struct drm_i915_private *dev_priv = dev->dev_private;
766aa1c4 10344 u32 vga_reg = i915_vgacntrl_reg(dev);
0fde901f 10345
8dc8a27c
PZ		 10346 /* This function can be called both from intel_modeset_setup_hw_state or
10347 * at a very early point in our resume sequence, where the power well
10348 * structures are not yet restored. Since this function is at a very
10349 * paranoid "someone might have enabled VGA while we were not looking"
10350 * level, just check if the power well is enabled instead of trying to
10351 * follow the "don't touch the power well if we don't need it" policy
10352 * the rest of the driver uses. */
10353 if (HAS_POWER_WELL(dev) &&
6aedd1f5 10354 (I915_READ(HSW_PWR_WELL_DRIVER) & HSW_PWR_WELL_STATE_ENABLED) == 0)
8dc8a27c
PZ		 10355 return;
10356
0fde901f
KM		 10357 if (I915_READ(vga_reg) != VGA_DISP_DISABLE) {
10358 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
209d5211 10359 i915_disable_vga(dev);
6e1b4fda 10360 i915_disable_vga_mem(dev);
0fde901f
KM		 10361 }
10362}
10363
30e984df 10364static void intel_modeset_readout_hw_state(struct drm_device *dev)
24929352
DV		 10365{
10366 struct drm_i915_private *dev_priv = dev->dev_private;
10367 enum pipe pipe;
24929352
DV		 10368 struct intel_crtc *crtc;
10369 struct intel_encoder *encoder;
10370 struct intel_connector *connector;
5358901f 10371 int i;
24929352 10372
0e8ffe1b
DV		 10373 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10374 base.head) {
88adfff1 10375 memset(&crtc->config, 0, sizeof(crtc->config));
3b117c8f 10376
0e8ffe1b
DV		 10377 crtc->active = dev_priv->display.get_pipe_config(crtc,
10378 &crtc->config);
24929352
DV		 10379
10380 crtc->base.enabled = crtc->active;
10381
10382 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
10383 crtc->base.base.id,
10384 crtc->active ? "enabled" : "disabled");
10385 }
10386
5358901f 10387 /* FIXME: Smash this into the new shared dpll infrastructure. */
affa9354 10388 if (HAS_DDI(dev))
6441ab5f
PZ		 10389 intel_ddi_setup_hw_pll_state(dev);
10390
5358901f
DV		 10391 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
10392 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
10393
10394 pll->on = pll->get_hw_state(dev_priv, pll, &pll->hw_state);
10395 pll->active = 0;
10396 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10397 base.head) {
10398 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
10399 pll->active++;
10400 }
10401 pll->refcount = pll->active;
10402
35c95375
DV		 10403 DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
10404 pll->name, pll->refcount, pll->on);
5358901f
DV		 10405 }
10406
24929352
DV		 10407 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
10408 base.head) {
10409 pipe = 0;
10410
10411 if (encoder->get_hw_state(encoder, &pipe)) {
045ac3b5
JB		 10412 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
10413 encoder->base.crtc = &crtc->base;
510d5f2f 10414 if (encoder->get_config)
045ac3b5 10415 encoder->get_config(encoder, &crtc->config);
24929352
DV		 10416 } else {
10417 encoder->base.crtc = NULL;
10418 }
10419
10420 encoder->connectors_active = false;
10421 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
10422 encoder->base.base.id,
10423 drm_get_encoder_name(&encoder->base),
10424 encoder->base.crtc ? "enabled" : "disabled",
10425 pipe);
10426 }
10427
510d5f2f
JB		 10428 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10429 base.head) {
10430 if (!crtc->active)
10431 continue;
10432 if (dev_priv->display.get_clock)
10433 dev_priv->display.get_clock(crtc,
10434 &crtc->config);
10435 }
10436
24929352
DV		 10437 list_for_each_entry(connector, &dev->mode_config.connector_list,
10438 base.head) {
10439 if (connector->get_hw_state(connector)) {
10440 connector->base.dpms = DRM_MODE_DPMS_ON;
10441 connector->encoder->connectors_active = true;
10442 connector->base.encoder = &connector->encoder->base;
10443 } else {
10444 connector->base.dpms = DRM_MODE_DPMS_OFF;
10445 connector->base.encoder = NULL;
10446 }
10447 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
10448 connector->base.base.id,
10449 drm_get_connector_name(&connector->base),
10450 connector->base.encoder ? "enabled" : "disabled");
10451 }
30e984df
DV		 10452}
10453
10454/* Scan out the current hw modeset state, sanitizes it and maps it into the drm
10455 * and i915 state tracking structures. */
10456void intel_modeset_setup_hw_state(struct drm_device *dev,
10457 bool force_restore)
10458{
10459 struct drm_i915_private *dev_priv = dev->dev_private;
10460 enum pipe pipe;
10461 struct drm_plane *plane;
10462 struct intel_crtc *crtc;
10463 struct intel_encoder *encoder;
35c95375 10464 int i;
30e984df
DV		 10465
10466 intel_modeset_readout_hw_state(dev);
24929352 10467
babea61d
JB		 10468 /*
10469 * Now that we have the config, copy it to each CRTC struct
10470 * Note that this could go away if we move to using crtc_config
10471 * checking everywhere.
10472 */
10473 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10474 base.head) {
10475 if (crtc->active && i915_fastboot) {
10476 intel_crtc_mode_from_pipe_config(crtc, &crtc->config);
10477
10478 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
10479 crtc->base.base.id);
10480 drm_mode_debug_printmodeline(&crtc->base.mode);
10481 }
10482 }
10483
24929352
DV		 10484 /* HW state is read out, now we need to sanitize this mess. */
10485 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
10486 base.head) {
10487 intel_sanitize_encoder(encoder);
10488 }
10489
10490 for_each_pipe(pipe) {
10491 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
10492 intel_sanitize_crtc(crtc);
c0b03411 10493 intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]");
24929352 10494 }
9a935856 10495
35c95375
DV		 10496 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
10497 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
10498
10499 if (!pll->on || pll->active)
10500 continue;
10501
10502 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name);
10503
10504 pll->disable(dev_priv, pll);
10505 pll->on = false;
10506 }
10507
45e2b5f6 10508 if (force_restore) {
f30da187
DV		 10509 /*
10510 * We need to use raw interfaces for restoring state to avoid
10511 * checking (bogus) intermediate states.
10512 */
45e2b5f6 10513 for_each_pipe(pipe) {
b5644d05
JB		 10514 struct drm_crtc *crtc =
10515 dev_priv->pipe_to_crtc_mapping[pipe];
f30da187
DV		 10516
10517 __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
10518 crtc->fb);
45e2b5f6 10519 }
b5644d05
JB		 10520 list_for_each_entry(plane, &dev->mode_config.plane_list, head)
10521 intel_plane_restore(plane);
0fde901f
KM		 10522
10523 i915_redisable_vga(dev);
45e2b5f6
DV		 10524 } else {
10525 intel_modeset_update_staged_output_state(dev);
10526 }
8af6cf88
DV		 10527
10528 intel_modeset_check_state(dev);
2e938892
DV		 10529
10530 drm_mode_config_reset(dev);
2c7111db
CW		 10531}
10532
10533void intel_modeset_gem_init(struct drm_device *dev)
10534{
1833b134 10535 intel_modeset_init_hw(dev);
02e792fb
DV		 10536
10537 intel_setup_overlay(dev);
24929352 10538
45e2b5f6 10539 intel_modeset_setup_hw_state(dev, false);
79e53945
JB		 10540}
10541
10542void intel_modeset_cleanup(struct drm_device *dev)
10543{
652c393a
JB		 10544 struct drm_i915_private *dev_priv = dev->dev_private;
10545 struct drm_crtc *crtc;
652c393a 10546
fd0c0642
DV		 10547 /*
10548 * Interrupts and polling as the first thing to avoid creating havoc.
10549 * Too much stuff here (turning of rps, connectors, ...) would
10550 * experience fancy races otherwise.
10551 */
10552 drm_irq_uninstall(dev);
10553 cancel_work_sync(&dev_priv->hotplug_work);
10554 /*
10555 * Due to the hpd irq storm handling the hotplug work can re-arm the
10556 * poll handlers. Hence disable polling after hpd handling is shut down.
10557 */
f87ea761 10558 drm_kms_helper_poll_fini(dev);
fd0c0642 10559
652c393a
JB		 10560 mutex_lock(&dev->struct_mutex);
10561
723bfd70
JB		 10562 intel_unregister_dsm_handler();
10563
652c393a
JB		 10564 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
10565 /* Skip inactive CRTCs */
10566 if (!crtc->fb)
10567 continue;
10568
3dec0095 10569 intel_increase_pllclock(crtc);
652c393a
JB		 10570 }
10571
973d04f9 10572 intel_disable_fbc(dev);
e70236a8 10573
6e1b4fda 10574 i915_enable_vga_mem(dev);
81b5c7bc 10575
8090c6b9 10576 intel_disable_gt_powersave(dev);
0cdab21f 10577
930ebb46
DV		 10578 ironlake_teardown_rc6(dev);
10579
69341a5e
KH		 10580 mutex_unlock(&dev->struct_mutex);
10581
1630fe75
CW		 10582 /* flush any delayed tasks or pending work */
10583 flush_scheduled_work();
10584
dc652f90
JN		 10585 /* destroy backlight, if any, before the connectors */
10586 intel_panel_destroy_backlight(dev);
10587
79e53945 10588 drm_mode_config_cleanup(dev);
4d7bb011
DV		 10589
10590 intel_cleanup_overlay(dev);
79e53945
JB		 10591}
10592
f1c79df3
ZW		 10593/*
10594 * Return which encoder is currently attached for connector.
10595 */
df0e9248 10596struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
79e53945 10597{
df0e9248
CW		 10598 return &intel_attached_encoder(connector)->base;
10599}
f1c79df3 10600
df0e9248
CW		 10601void intel_connector_attach_encoder(struct intel_connector *connector,
10602 struct intel_encoder *encoder)
10603{
10604 connector->encoder = encoder;
10605 drm_mode_connector_attach_encoder(&connector->base,
10606 &encoder->base);
79e53945 10607}
28d52043
DA		 10608
10609/*
10610 * set vga decode state - true == enable VGA decode
10611 */
10612int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
10613{
10614 struct drm_i915_private *dev_priv = dev->dev_private;
10615 u16 gmch_ctrl;
10616
10617 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
10618 if (state)
10619 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
10620 else
10621 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
10622 pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
10623 return 0;
10624}
c4a1d9e4 10625
c4a1d9e4 10626struct intel_display_error_state {
ff57f1b0
PZ		 10627
10628 u32 power_well_driver;
10629
63b66e5b
CW		 10630 int num_transcoders;
10631
c4a1d9e4
CW		 10632 struct intel_cursor_error_state {
10633 u32 control;
10634 u32 position;
10635 u32 base;
10636 u32 size;
52331309 10637 } cursor[I915_MAX_PIPES];
c4a1d9e4
CW		 10638
10639 struct intel_pipe_error_state {
c4a1d9e4 10640 u32 source;
52331309 10641 } pipe[I915_MAX_PIPES];
c4a1d9e4
CW		 10642
10643 struct intel_plane_error_state {
10644 u32 control;
10645 u32 stride;
10646 u32 size;
10647 u32 pos;
10648 u32 addr;
10649 u32 surface;
10650 u32 tile_offset;
52331309 10651 } plane[I915_MAX_PIPES];
63b66e5b
CW		 10652
10653 struct intel_transcoder_error_state {
10654 enum transcoder cpu_transcoder;
10655
10656 u32 conf;
10657
10658 u32 htotal;
10659 u32 hblank;
10660 u32 hsync;
10661 u32 vtotal;
10662 u32 vblank;
10663 u32 vsync;
10664 } transcoder[4];
c4a1d9e4
CW		 10665};
10666
10667struct intel_display_error_state *
10668intel_display_capture_error_state(struct drm_device *dev)
10669{
0206e353 10670 drm_i915_private_t *dev_priv = dev->dev_private;
c4a1d9e4 10671 struct intel_display_error_state *error;
63b66e5b
CW		 10672 int transcoders[] = {
10673 TRANSCODER_A,
10674 TRANSCODER_B,
10675 TRANSCODER_C,
10676 TRANSCODER_EDP,
10677 };
c4a1d9e4
CW		 10678 int i;
10679
63b66e5b
CW		 10680 if (INTEL_INFO(dev)->num_pipes == 0)
10681 return NULL;
10682
c4a1d9e4
CW		 10683 error = kmalloc(sizeof(*error), GFP_ATOMIC);
10684 if (error == NULL)
10685 return NULL;
10686
ff57f1b0
PZ		 10687 if (HAS_POWER_WELL(dev))
10688 error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
10689
52331309 10690 for_each_pipe(i) {
a18c4c3d
PZ		 10691 if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
10692 error->cursor[i].control = I915_READ(CURCNTR(i));
10693 error->cursor[i].position = I915_READ(CURPOS(i));
10694 error->cursor[i].base = I915_READ(CURBASE(i));
10695 } else {
10696 error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
10697 error->cursor[i].position = I915_READ(CURPOS_IVB(i));
10698 error->cursor[i].base = I915_READ(CURBASE_IVB(i));
10699 }
c4a1d9e4
CW		 10700
10701 error->plane[i].control = I915_READ(DSPCNTR(i));
10702 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
80ca378b 10703 if (INTEL_INFO(dev)->gen <= 3) {
51889b35 10704 error->plane[i].size = I915_READ(DSPSIZE(i));
80ca378b
PZ		 10705 error->plane[i].pos = I915_READ(DSPPOS(i));
10706 }
ca291363
PZ		 10707 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
10708 error->plane[i].addr = I915_READ(DSPADDR(i));
c4a1d9e4
CW		 10709 if (INTEL_INFO(dev)->gen >= 4) {
10710 error->plane[i].surface = I915_READ(DSPSURF(i));
10711 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
10712 }
10713
c4a1d9e4 10714 error->pipe[i].source = I915_READ(PIPESRC(i));
63b66e5b
CW		 10715 }
10716
10717 error->num_transcoders = INTEL_INFO(dev)->num_pipes;
10718 if (HAS_DDI(dev_priv->dev))
10719 error->num_transcoders++; /* Account for eDP. */
10720
10721 for (i = 0; i < error->num_transcoders; i++) {
10722 enum transcoder cpu_transcoder = transcoders[i];
10723
10724 error->transcoder[i].cpu_transcoder = cpu_transcoder;
10725
10726 error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder));
10727 error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
10728 error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder));
10729 error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder));
10730 error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
10731 error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder));
10732 error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder));
c4a1d9e4
CW		 10733 }
10734
12d217c7
PZ		 10735 /* In the code above we read the registers without checking if the power
10736 * well was on, so here we have to clear the FPGA_DBG_RM_NOCLAIM bit to
10737 * prevent the next I915_WRITE from detecting it and printing an error
10738 * message. */
907b28c5 10739 intel_uncore_clear_errors(dev);
12d217c7 10740
c4a1d9e4
CW		 10741 return error;
10742}
10743
edc3d884
MK		 10744#define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
10745
c4a1d9e4 10746void
edc3d884 10747intel_display_print_error_state(struct drm_i915_error_state_buf *m,
c4a1d9e4
CW		 10748 struct drm_device *dev,
10749 struct intel_display_error_state *error)
10750{
10751 int i;
10752
63b66e5b
CW		 10753 if (!error)
10754 return;
10755
edc3d884 10756 err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
ff57f1b0 10757 if (HAS_POWER_WELL(dev))
edc3d884 10758 err_printf(m, "PWR_WELL_CTL2: %08x\n",
ff57f1b0 10759 error->power_well_driver);
52331309 10760 for_each_pipe(i) {
edc3d884 10761 err_printf(m, "Pipe [%d]:\n", i);
edc3d884 10762 err_printf(m, " SRC: %08x\n", error->pipe[i].source);
edc3d884
MK		 10763
10764 err_printf(m, "Plane [%d]:\n", i);
10765 err_printf(m, " CNTR: %08x\n", error->plane[i].control);
10766 err_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
80ca378b 10767 if (INTEL_INFO(dev)->gen <= 3) {
edc3d884
MK		 10768 err_printf(m, " SIZE: %08x\n", error->plane[i].size);
10769 err_printf(m, " POS: %08x\n", error->plane[i].pos);
80ca378b 10770 }
4b71a570 10771 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
edc3d884 10772 err_printf(m, " ADDR: %08x\n", error->plane[i].addr);
c4a1d9e4 10773 if (INTEL_INFO(dev)->gen >= 4) {
edc3d884
MK		 10774 err_printf(m, " SURF: %08x\n", error->plane[i].surface);
10775 err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
c4a1d9e4
CW		 10776 }
10777
edc3d884
MK		 10778 err_printf(m, "Cursor [%d]:\n", i);
10779 err_printf(m, " CNTR: %08x\n", error->cursor[i].control);
10780 err_printf(m, " POS: %08x\n", error->cursor[i].position);
10781 err_printf(m, " BASE: %08x\n", error->cursor[i].base);
c4a1d9e4 10782 }
63b66e5b
CW		 10783
10784 for (i = 0; i < error->num_transcoders; i++) {
10785 err_printf(m, " CPU transcoder: %c\n",
10786 transcoder_name(error->transcoder[i].cpu_transcoder));
10787 err_printf(m, " CONF: %08x\n", error->transcoder[i].conf);
10788 err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal);
10789 err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank);
10790 err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync);
10791 err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal);
10792 err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank);
10793 err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync);
10794 }
c4a1d9e4 10795}
Linux kernel - Deliverables
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