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drm/i915: Mask LPSP to get PSR working even with Power Well in use by audio.
[mirror_ubuntu-bionic-kernel.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 4777
67c72a12
DV		 4778 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
4779 I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE)
4780 pipeconf |= PIPECONF_ENABLE;
4781
84b046f3
DV		 4782 if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) {
4783 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4784 * core speed.
4785 *
4786 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4787 * pipe == 0 check?
4788 */
4789 if (intel_crtc->config.requested_mode.clock >
4790 dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
4791 pipeconf |= PIPECONF_DOUBLE_WIDE;
84b046f3
DV		 4792 }
4793
ff9ce46e
DV		 4794 /* only g4x and later have fancy bpc/dither controls */
4795 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
ff9ce46e
DV		 4796 /* Bspec claims that we can't use dithering for 30bpp pipes. */
4797 if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30)
4798 pipeconf |= PIPECONF_DITHER_EN |
84b046f3 4799 PIPECONF_DITHER_TYPE_SP;
84b046f3 4800
ff9ce46e
DV		 4801 switch (intel_crtc->config.pipe_bpp) {
4802 case 18:
4803 pipeconf |= PIPECONF_6BPC;
4804 break;
4805 case 24:
4806 pipeconf |= PIPECONF_8BPC;
4807 break;
4808 case 30:
4809 pipeconf |= PIPECONF_10BPC;
4810 break;
4811 default:
4812 /* Case prevented by intel_choose_pipe_bpp_dither. */
4813 BUG();
84b046f3
DV		 4814 }
4815 }
4816
4817 if (HAS_PIPE_CXSR(dev)) {
4818 if (intel_crtc->lowfreq_avail) {
4819 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4820 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
4821 } else {
4822 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
84b046f3
DV		 4823 }
4824 }
4825
84b046f3
DV		 4826 if (!IS_GEN2(dev) &&
4827 intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
4828 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
4829 else
4830 pipeconf |= PIPECONF_PROGRESSIVE;
4831
9f11a9e4
DV		 4832 if (IS_VALLEYVIEW(dev) && intel_crtc->config.limited_color_range)
4833 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
9c8e09b7 4834
84b046f3
DV		 4835 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
4836 POSTING_READ(PIPECONF(intel_crtc->pipe));
4837}
4838
f564048e 4839static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
f564048e 4840 int x, int y,
94352cf9 4841 struct drm_framebuffer *fb)
79e53945
JB		 4842{
4843 struct drm_device *dev = crtc->dev;
4844 struct drm_i915_private *dev_priv = dev->dev_private;
4845 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
b8cecdf5 4846 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
79e53945 4847 int pipe = intel_crtc->pipe;
80824003 4848 int plane = intel_crtc->plane;
c751ce4f 4849 int refclk, num_connectors = 0;
652c393a 4850 intel_clock_t clock, reduced_clock;
84b046f3 4851 u32 dspcntr;
a16af721
DV		 4852 bool ok, has_reduced_clock = false;
4853 bool is_lvds = false;
5eddb70b 4854 struct intel_encoder *encoder;
d4906093 4855 const intel_limit_t *limit;
5c3b82e2 4856 int ret;
79e53945 4857
6c2b7c12 4858 for_each_encoder_on_crtc(dev, crtc, encoder) {
5eddb70b 4859 switch (encoder->type) {
79e53945
JB		 4860 case INTEL_OUTPUT_LVDS:
4861 is_lvds = true;
4862 break;
79e53945 4863 }
43565a06 4864
c751ce4f 4865 num_connectors++;
79e53945
JB		 4866 }
4867
c65d77d8 4868 refclk = i9xx_get_refclk(crtc, num_connectors);
79e53945 4869
d4906093
ML		 4870 /*
4871 * Returns a set of divisors for the desired target clock with the given
4872 * refclk, or FALSE. The returned values represent the clock equation:
4873 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4874 */
1b894b59 4875 limit = intel_limit(crtc, refclk);
ff9a6750
DV		 4876 ok = dev_priv->display.find_dpll(limit, crtc,
4877 intel_crtc->config.port_clock,
ee9300bb
DV		 4878 refclk, NULL, &clock);
4879 if (!ok && !intel_crtc->config.clock_set) {
79e53945 4880 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5c3b82e2 4881 return -EINVAL;
79e53945
JB		 4882 }
4883
ddc9003c 4884 if (is_lvds && dev_priv->lvds_downclock_avail) {
cec2f356
SP		 4885 /*
4886 * Ensure we match the reduced clock's P to the target clock.
4887 * If the clocks don't match, we can't switch the display clock
4888 * by using the FP0/FP1. In such case we will disable the LVDS
4889 * downclock feature.
4890 */
ee9300bb
DV		 4891 has_reduced_clock =
4892 dev_priv->display.find_dpll(limit, crtc,
5eddb70b 4893 dev_priv->lvds_downclock,
ee9300bb 4894 refclk, &clock,
5eddb70b 4895 &reduced_clock);
7026d4ac 4896 }
f47709a9
DV		 4897 /* Compat-code for transition, will disappear. */
4898 if (!intel_crtc->config.clock_set) {
4899 intel_crtc->config.dpll.n = clock.n;
4900 intel_crtc->config.dpll.m1 = clock.m1;
4901 intel_crtc->config.dpll.m2 = clock.m2;
4902 intel_crtc->config.dpll.p1 = clock.p1;
4903 intel_crtc->config.dpll.p2 = clock.p2;
4904 }
7026d4ac 4905
eb1cbe48 4906 if (IS_GEN2(dev))
8a654f3b 4907 i8xx_update_pll(intel_crtc,
2a8f64ca
VP		 4908 has_reduced_clock ? &reduced_clock : NULL,
4909 num_connectors);
a0c4da24 4910 else if (IS_VALLEYVIEW(dev))
f47709a9 4911 vlv_update_pll(intel_crtc);
79e53945 4912 else
f47709a9 4913 i9xx_update_pll(intel_crtc,
eb1cbe48 4914 has_reduced_clock ? &reduced_clock : NULL,
89b667f8 4915 num_connectors);
79e53945 4916
79e53945
JB		 4917 /* Set up the display plane register */
4918 dspcntr = DISPPLANE_GAMMA_ENABLE;
4919
da6ecc5d
JB		 4920 if (!IS_VALLEYVIEW(dev)) {
4921 if (pipe == 0)
4922 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
4923 else
4924 dspcntr |= DISPPLANE_SEL_PIPE_B;
4925 }
79e53945 4926
8a654f3b 4927 intel_set_pipe_timings(intel_crtc);
5eddb70b
CW		 4928
4929 /* pipesrc and dspsize control the size that is scaled from,
4930 * which should always be the user's requested size.
79e53945 4931 */
929c77fb
EA		 4932 I915_WRITE(DSPSIZE(plane),
4933 ((mode->vdisplay - 1) << 16) |
4934 (mode->hdisplay - 1));
4935 I915_WRITE(DSPPOS(plane), 0);
2c07245f 4936
84b046f3
DV		 4937 i9xx_set_pipeconf(intel_crtc);
4938
f564048e
EA		 4939 I915_WRITE(DSPCNTR(plane), dspcntr);
4940 POSTING_READ(DSPCNTR(plane));
4941
94352cf9 4942 ret = intel_pipe_set_base(crtc, x, y, fb);
f564048e
EA		 4943
4944 intel_update_watermarks(dev);
4945
f564048e
EA		 4946 return ret;
4947}
4948
2fa2fe9a
DV		 4949static void i9xx_get_pfit_config(struct intel_crtc *crtc,
4950 struct intel_crtc_config *pipe_config)
4951{
4952 struct drm_device *dev = crtc->base.dev;
4953 struct drm_i915_private *dev_priv = dev->dev_private;
4954 uint32_t tmp;
4955
4956 tmp = I915_READ(PFIT_CONTROL);
06922821
DV		 4957 if (!(tmp & PFIT_ENABLE))
4958 return;
2fa2fe9a 4959
06922821 4960 /* Check whether the pfit is attached to our pipe. */
2fa2fe9a
DV		 4961 if (INTEL_INFO(dev)->gen < 4) {
4962 if (crtc->pipe != PIPE_B)
4963 return;
2fa2fe9a
DV		 4964 } else {
4965 if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT))
4966 return;
4967 }
4968
06922821 4969 pipe_config->gmch_pfit.control = tmp;
2fa2fe9a
DV		 4970 pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS);
4971 if (INTEL_INFO(dev)->gen < 5)
4972 pipe_config->gmch_pfit.lvds_border_bits =
4973 I915_READ(LVDS) & LVDS_BORDER_ENABLE;
4974}
4975
0e8ffe1b
DV		 4976static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
4977 struct intel_crtc_config *pipe_config)
4978{
4979 struct drm_device *dev = crtc->base.dev;
4980 struct drm_i915_private *dev_priv = dev->dev_private;
4981 uint32_t tmp;
4982
e143a21c 4983 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
c0d43d62 4984 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
eccb140b 4985
0e8ffe1b
DV		 4986 tmp = I915_READ(PIPECONF(crtc->pipe));
4987 if (!(tmp & PIPECONF_ENABLE))
4988 return false;
4989
1bd1bd80
DV		 4990 intel_get_pipe_timings(crtc, pipe_config);
4991
2fa2fe9a
DV		 4992 i9xx_get_pfit_config(crtc, pipe_config);
4993
6c49f241
DV		 4994 if (INTEL_INFO(dev)->gen >= 4) {
4995 tmp = I915_READ(DPLL_MD(crtc->pipe));
4996 pipe_config->pixel_multiplier =
4997 ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK)
4998 >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1;
8bcc2795 4999 pipe_config->dpll_hw_state.dpll_md = tmp;
6c49f241
DV		 5000 } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
5001 tmp = I915_READ(DPLL(crtc->pipe));
5002 pipe_config->pixel_multiplier =
5003 ((tmp & SDVO_MULTIPLIER_MASK)
5004 >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1;
5005 } else {
5006 /* Note that on i915G/GM the pixel multiplier is in the sdvo
5007 * port and will be fixed up in the encoder->get_config
5008 * function. */
5009 pipe_config->pixel_multiplier = 1;
5010 }
8bcc2795
DV		 5011 pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe));
5012 if (!IS_VALLEYVIEW(dev)) {
5013 pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe));
5014 pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe));
165e901c
VS		 5015 } else {
5016 /* Mask out read-only status bits. */
5017 pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV |
5018 DPLL_PORTC_READY_MASK |
5019 DPLL_PORTB_READY_MASK);
8bcc2795 5020 }
6c49f241 5021
0e8ffe1b
DV		 5022 return true;
5023}
5024
dde86e2d 5025static void ironlake_init_pch_refclk(struct drm_device *dev)
13d83a67
JB		 5026{
5027 struct drm_i915_private *dev_priv = dev->dev_private;
5028 struct drm_mode_config *mode_config = &dev->mode_config;
13d83a67 5029 struct intel_encoder *encoder;
74cfd7ac 5030 u32 val, final;
13d83a67 5031 bool has_lvds = false;
199e5d79 5032 bool has_cpu_edp = false;
199e5d79 5033 bool has_panel = false;
99eb6a01
KP		 5034 bool has_ck505 = false;
5035 bool can_ssc = false;
13d83a67
JB		 5036
5037 /* We need to take the global config into account */
199e5d79
KP		 5038 list_for_each_entry(encoder, &mode_config->encoder_list,
5039 base.head) {
5040 switch (encoder->type) {
5041 case INTEL_OUTPUT_LVDS:
5042 has_panel = true;
5043 has_lvds = true;
5044 break;
5045 case INTEL_OUTPUT_EDP:
5046 has_panel = true;
2de6905f 5047 if (enc_to_dig_port(&encoder->base)->port == PORT_A)
199e5d79
KP		 5048 has_cpu_edp = true;
5049 break;
13d83a67
JB		 5050 }
5051 }
5052
99eb6a01 5053 if (HAS_PCH_IBX(dev)) {
41aa3448 5054 has_ck505 = dev_priv->vbt.display_clock_mode;
99eb6a01
KP		 5055 can_ssc = has_ck505;
5056 } else {
5057 has_ck505 = false;
5058 can_ssc = true;
5059 }
5060
2de6905f
ID		 5061 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
5062 has_panel, has_lvds, has_ck505);
13d83a67
JB		 5063
5064 /* Ironlake: try to setup display ref clock before DPLL
5065 * enabling. This is only under driver's control after
5066 * PCH B stepping, previous chipset stepping should be
5067 * ignoring this setting.
5068 */
74cfd7ac
CW		 5069 val = I915_READ(PCH_DREF_CONTROL);
5070
5071 /* As we must carefully and slowly disable/enable each source in turn,
5072 * compute the final state we want first and check if we need to
5073 * make any changes at all.
5074 */
5075 final = val;
5076 final &= ~DREF_NONSPREAD_SOURCE_MASK;
5077 if (has_ck505)
5078 final |= DREF_NONSPREAD_CK505_ENABLE;
5079 else
5080 final |= DREF_NONSPREAD_SOURCE_ENABLE;
5081
5082 final &= ~DREF_SSC_SOURCE_MASK;
5083 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5084 final &= ~DREF_SSC1_ENABLE;
5085
5086 if (has_panel) {
5087 final |= DREF_SSC_SOURCE_ENABLE;
5088
5089 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5090 final |= DREF_SSC1_ENABLE;
5091
5092 if (has_cpu_edp) {
5093 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5094 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5095 else
5096 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5097 } else
5098 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5099 } else {
5100 final |= DREF_SSC_SOURCE_DISABLE;
5101 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5102 }
5103
5104 if (final == val)
5105 return;
5106
13d83a67 5107 /* Always enable nonspread source */
74cfd7ac 5108 val &= ~DREF_NONSPREAD_SOURCE_MASK;
13d83a67 5109
99eb6a01 5110 if (has_ck505)
74cfd7ac 5111 val |= DREF_NONSPREAD_CK505_ENABLE;
99eb6a01 5112 else
74cfd7ac 5113 val |= DREF_NONSPREAD_SOURCE_ENABLE;
13d83a67 5114
199e5d79 5115 if (has_panel) {
74cfd7ac
CW		 5116 val &= ~DREF_SSC_SOURCE_MASK;
5117 val |= DREF_SSC_SOURCE_ENABLE;
13d83a67 5118
199e5d79 5119 /* SSC must be turned on before enabling the CPU output */
99eb6a01 5120 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
199e5d79 5121 DRM_DEBUG_KMS("Using SSC on panel\n");
74cfd7ac 5122 val |= DREF_SSC1_ENABLE;
e77166b5 5123 } else
74cfd7ac 5124 val &= ~DREF_SSC1_ENABLE;
199e5d79
KP		 5125
5126 /* Get SSC going before enabling the outputs */
74cfd7ac 5127 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5128 POSTING_READ(PCH_DREF_CONTROL);
5129 udelay(200);
5130
74cfd7ac 5131 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
13d83a67
JB		 5132
5133 /* Enable CPU source on CPU attached eDP */
199e5d79 5134 if (has_cpu_edp) {
99eb6a01 5135 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
199e5d79 5136 DRM_DEBUG_KMS("Using SSC on eDP\n");
74cfd7ac 5137 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
199e5d79 5138 }
13d83a67 5139 else
74cfd7ac 5140 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
199e5d79 5141 } else
74cfd7ac 5142 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
199e5d79 5143
74cfd7ac 5144 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5145 POSTING_READ(PCH_DREF_CONTROL);
5146 udelay(200);
5147 } else {
5148 DRM_DEBUG_KMS("Disabling SSC entirely\n");
5149
74cfd7ac 5150 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
199e5d79
KP		 5151
5152 /* Turn off CPU output */
74cfd7ac 5153 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
199e5d79 5154
74cfd7ac 5155 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5156 POSTING_READ(PCH_DREF_CONTROL);
5157 udelay(200);
5158
5159 /* Turn off the SSC source */
74cfd7ac
CW		 5160 val &= ~DREF_SSC_SOURCE_MASK;
5161 val |= DREF_SSC_SOURCE_DISABLE;
199e5d79
KP		 5162
5163 /* Turn off SSC1 */
74cfd7ac 5164 val &= ~DREF_SSC1_ENABLE;
199e5d79 5165
74cfd7ac 5166 I915_WRITE(PCH_DREF_CONTROL, val);
13d83a67
JB		 5167 POSTING_READ(PCH_DREF_CONTROL);
5168 udelay(200);
5169 }
74cfd7ac
CW		 5170
5171 BUG_ON(val != final);
13d83a67
JB		 5172}
5173
f31f2d55 5174static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv)
dde86e2d 5175{
f31f2d55 5176 uint32_t tmp;
dde86e2d 5177
0ff066a9
PZ		 5178 tmp = I915_READ(SOUTH_CHICKEN2);
5179 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
5180 I915_WRITE(SOUTH_CHICKEN2, tmp);
dde86e2d 5181
0ff066a9
PZ		 5182 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
5183 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
5184 DRM_ERROR("FDI mPHY reset assert timeout\n");
dde86e2d 5185
0ff066a9
PZ		 5186 tmp = I915_READ(SOUTH_CHICKEN2);
5187 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
5188 I915_WRITE(SOUTH_CHICKEN2, tmp);
dde86e2d 5189
0ff066a9
PZ		 5190 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
5191 FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100))
5192 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
f31f2d55
PZ		 5193}
5194
5195/* WaMPhyProgramming:hsw */
5196static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv)
5197{
5198 uint32_t tmp;
dde86e2d
PZ		 5199
5200 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
5201 tmp &= ~(0xFF << 24);
5202 tmp |= (0x12 << 24);
5203 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
5204
dde86e2d
PZ		 5205 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
5206 tmp |= (1 << 11);
5207 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
5208
5209 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
5210 tmp |= (1 << 11);
5211 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
5212
dde86e2d
PZ		 5213 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
5214 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5215 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
5216
5217 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
5218 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5219 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
5220
0ff066a9
PZ		 5221 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
5222 tmp &= ~(7 << 13);
5223 tmp |= (5 << 13);
5224 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
dde86e2d 5225
0ff066a9
PZ		 5226 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
5227 tmp &= ~(7 << 13);
5228 tmp |= (5 << 13);
5229 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
dde86e2d
PZ		 5230
5231 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
5232 tmp &= ~0xFF;
5233 tmp |= 0x1C;
5234 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
5235
5236 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
5237 tmp &= ~0xFF;
5238 tmp |= 0x1C;
5239 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
5240
5241 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
5242 tmp &= ~(0xFF << 16);
5243 tmp |= (0x1C << 16);
5244 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
5245
5246 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
5247 tmp &= ~(0xFF << 16);
5248 tmp |= (0x1C << 16);
5249 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
5250
0ff066a9
PZ		 5251 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
5252 tmp |= (1 << 27);
5253 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
dde86e2d 5254
0ff066a9
PZ		 5255 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
5256 tmp |= (1 << 27);
5257 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
dde86e2d 5258
0ff066a9
PZ		 5259 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
5260 tmp &= ~(0xF << 28);
5261 tmp |= (4 << 28);
5262 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
dde86e2d 5263
0ff066a9
PZ		 5264 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
5265 tmp &= ~(0xF << 28);
5266 tmp |= (4 << 28);
5267 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
f31f2d55
PZ		 5268}
5269
2fa86a1f
PZ		 5270/* Implements 3 different sequences from BSpec chapter "Display iCLK
5271 * Programming" based on the parameters passed:
5272 * - Sequence to enable CLKOUT_DP
5273 * - Sequence to enable CLKOUT_DP without spread
5274 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
5275 */
5276static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread,
5277 bool with_fdi)
f31f2d55
PZ		 5278{
5279 struct drm_i915_private *dev_priv = dev->dev_private;
2fa86a1f
PZ		 5280 uint32_t reg, tmp;
5281
5282 if (WARN(with_fdi && !with_spread, "FDI requires downspread\n"))
5283 with_spread = true;
5284 if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE &&
5285 with_fdi, "LP PCH doesn't have FDI\n"))
5286 with_fdi = false;
f31f2d55
PZ		 5287
5288 mutex_lock(&dev_priv->dpio_lock);
5289
5290 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5291 tmp &= ~SBI_SSCCTL_DISABLE;
5292 tmp |= SBI_SSCCTL_PATHALT;
5293 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5294
5295 udelay(24);
5296
2fa86a1f
PZ		 5297 if (with_spread) {
5298 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5299 tmp &= ~SBI_SSCCTL_PATHALT;
5300 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
f31f2d55 5301
2fa86a1f
PZ		 5302 if (with_fdi) {
5303 lpt_reset_fdi_mphy(dev_priv);
5304 lpt_program_fdi_mphy(dev_priv);
5305 }
5306 }
dde86e2d 5307
2fa86a1f
PZ		 5308 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
5309 SBI_GEN0 : SBI_DBUFF0;
5310 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
5311 tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE;
5312 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
c00db246
DV		 5313
5314 mutex_unlock(&dev_priv->dpio_lock);
dde86e2d
PZ		 5315}
5316
47701c3b
PZ		 5317/* Sequence to disable CLKOUT_DP */
5318static void lpt_disable_clkout_dp(struct drm_device *dev)
5319{
5320 struct drm_i915_private *dev_priv = dev->dev_private;
5321 uint32_t reg, tmp;
5322
5323 mutex_lock(&dev_priv->dpio_lock);
5324
5325 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
5326 SBI_GEN0 : SBI_DBUFF0;
5327 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
5328 tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE;
5329 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
5330
5331 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5332 if (!(tmp & SBI_SSCCTL_DISABLE)) {
5333 if (!(tmp & SBI_SSCCTL_PATHALT)) {
5334 tmp |= SBI_SSCCTL_PATHALT;
5335 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5336 udelay(32);
5337 }
5338 tmp |= SBI_SSCCTL_DISABLE;
5339 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5340 }
5341
5342 mutex_unlock(&dev_priv->dpio_lock);
5343}
5344
bf8fa3d3
PZ		 5345static void lpt_init_pch_refclk(struct drm_device *dev)
5346{
5347 struct drm_mode_config *mode_config = &dev->mode_config;
5348 struct intel_encoder *encoder;
5349 bool has_vga = false;
5350
5351 list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
5352 switch (encoder->type) {
5353 case INTEL_OUTPUT_ANALOG:
5354 has_vga = true;
5355 break;
5356 }
5357 }
5358
47701c3b
PZ		 5359 if (has_vga)
5360 lpt_enable_clkout_dp(dev, true, true);
5361 else
5362 lpt_disable_clkout_dp(dev);
bf8fa3d3
PZ		 5363}
5364
dde86e2d
PZ		 5365/*
5366 * Initialize reference clocks when the driver loads
5367 */
5368void intel_init_pch_refclk(struct drm_device *dev)
5369{
5370 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
5371 ironlake_init_pch_refclk(dev);
5372 else if (HAS_PCH_LPT(dev))
5373 lpt_init_pch_refclk(dev);
5374}
5375
d9d444cb
JB		 5376static int ironlake_get_refclk(struct drm_crtc *crtc)
5377{
5378 struct drm_device *dev = crtc->dev;
5379 struct drm_i915_private *dev_priv = dev->dev_private;
5380 struct intel_encoder *encoder;
d9d444cb
JB		 5381 int num_connectors = 0;
5382 bool is_lvds = false;
5383
6c2b7c12 5384 for_each_encoder_on_crtc(dev, crtc, encoder) {
d9d444cb
JB		 5385 switch (encoder->type) {
5386 case INTEL_OUTPUT_LVDS:
5387 is_lvds = true;
5388 break;
d9d444cb
JB		 5389 }
5390 num_connectors++;
5391 }
5392
5393 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
5394 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
41aa3448
RV		 5395 dev_priv->vbt.lvds_ssc_freq);
5396 return dev_priv->vbt.lvds_ssc_freq * 1000;
d9d444cb
JB		 5397 }
5398
5399 return 120000;
5400}
5401
6ff93609 5402static void ironlake_set_pipeconf(struct drm_crtc *crtc)
79e53945 5403{
c8203565 5404 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
79e53945
JB		 5405 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5406 int pipe = intel_crtc->pipe;
c8203565
PZ		 5407 uint32_t val;
5408
78114071 5409 val = 0;
c8203565 5410
965e0c48 5411 switch (intel_crtc->config.pipe_bpp) {
c8203565 5412 case 18:
dfd07d72 5413 val |= PIPECONF_6BPC;
c8203565
PZ		 5414 break;
5415 case 24:
dfd07d72 5416 val |= PIPECONF_8BPC;
c8203565
PZ		 5417 break;
5418 case 30:
dfd07d72 5419 val |= PIPECONF_10BPC;
c8203565
PZ		 5420 break;
5421 case 36:
dfd07d72 5422 val |= PIPECONF_12BPC;
c8203565
PZ		 5423 break;
5424 default:
cc769b62
PZ		 5425 /* Case prevented by intel_choose_pipe_bpp_dither. */
5426 BUG();
c8203565
PZ		 5427 }
5428
d8b32247 5429 if (intel_crtc->config.dither)
c8203565
PZ		 5430 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5431
6ff93609 5432 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
c8203565
PZ		 5433 val |= PIPECONF_INTERLACED_ILK;
5434 else
5435 val |= PIPECONF_PROGRESSIVE;
5436
50f3b016 5437 if (intel_crtc->config.limited_color_range)
3685a8f3 5438 val |= PIPECONF_COLOR_RANGE_SELECT;
3685a8f3 5439
c8203565
PZ		 5440 I915_WRITE(PIPECONF(pipe), val);
5441 POSTING_READ(PIPECONF(pipe));
5442}
5443
86d3efce
VS		 5444/*
5445 * Set up the pipe CSC unit.
5446 *
5447 * Currently only full range RGB to limited range RGB conversion
5448 * is supported, but eventually this should handle various
5449 * RGB<->YCbCr scenarios as well.
5450 */
50f3b016 5451static void intel_set_pipe_csc(struct drm_crtc *crtc)
86d3efce
VS		 5452{
5453 struct drm_device *dev = crtc->dev;
5454 struct drm_i915_private *dev_priv = dev->dev_private;
5455 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5456 int pipe = intel_crtc->pipe;
5457 uint16_t coeff = 0x7800; /* 1.0 */
5458
5459 /*
5460 * TODO: Check what kind of values actually come out of the pipe
5461 * with these coeff/postoff values and adjust to get the best
5462 * accuracy. Perhaps we even need to take the bpc value into
5463 * consideration.
5464 */
5465
50f3b016 5466 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5467 coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5468
5469 /*
5470 * GY/GU and RY/RU should be the other way around according
5471 * to BSpec, but reality doesn't agree. Just set them up in
5472 * a way that results in the correct picture.
5473 */
5474 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
5475 I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
5476
5477 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
5478 I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
5479
5480 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
5481 I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
5482
5483 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
5484 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
5485 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
5486
5487 if (INTEL_INFO(dev)->gen > 6) {
5488 uint16_t postoff = 0;
5489
50f3b016 5490 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5491 postoff = (16 * (1 << 13) / 255) & 0x1fff;
5492
5493 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
5494 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
5495 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
5496
5497 I915_WRITE(PIPE_CSC_MODE(pipe), 0);
5498 } else {
5499 uint32_t mode = CSC_MODE_YUV_TO_RGB;
5500
50f3b016 5501 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5502 mode |= CSC_BLACK_SCREEN_OFFSET;
5503
5504 I915_WRITE(PIPE_CSC_MODE(pipe), mode);
5505 }
5506}
5507
6ff93609 5508static void haswell_set_pipeconf(struct drm_crtc *crtc)
ee2b0b38
PZ		 5509{
5510 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5511 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 5512 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
ee2b0b38
PZ		 5513 uint32_t val;
5514
3eff4faa 5515 val = 0;
ee2b0b38 5516
d8b32247 5517 if (intel_crtc->config.dither)
ee2b0b38
PZ		 5518 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5519
6ff93609 5520 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
ee2b0b38
PZ		 5521 val |= PIPECONF_INTERLACED_ILK;
5522 else
5523 val |= PIPECONF_PROGRESSIVE;
5524
702e7a56
PZ		 5525 I915_WRITE(PIPECONF(cpu_transcoder), val);
5526 POSTING_READ(PIPECONF(cpu_transcoder));
3eff4faa
DV		 5527
5528 I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT);
5529 POSTING_READ(GAMMA_MODE(intel_crtc->pipe));
ee2b0b38
PZ		 5530}
5531
6591c6e4 5532static bool ironlake_compute_clocks(struct drm_crtc *crtc,
6591c6e4
PZ		 5533 intel_clock_t *clock,
5534 bool *has_reduced_clock,
5535 intel_clock_t *reduced_clock)
5536{
5537 struct drm_device *dev = crtc->dev;
5538 struct drm_i915_private *dev_priv = dev->dev_private;
5539 struct intel_encoder *intel_encoder;
5540 int refclk;
d4906093 5541 const intel_limit_t *limit;
a16af721 5542 bool ret, is_lvds = false;
79e53945 5543
6591c6e4
PZ		 5544 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5545 switch (intel_encoder->type) {
79e53945
JB		 5546 case INTEL_OUTPUT_LVDS:
5547 is_lvds = true;
5548 break;
79e53945
JB		 5549 }
5550 }
5551
d9d444cb 5552 refclk = ironlake_get_refclk(crtc);
79e53945 5553
d4906093
ML		 5554 /*
5555 * Returns a set of divisors for the desired target clock with the given
5556 * refclk, or FALSE. The returned values represent the clock equation:
5557 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
5558 */
1b894b59 5559 limit = intel_limit(crtc, refclk);
ff9a6750
DV		 5560 ret = dev_priv->display.find_dpll(limit, crtc,
5561 to_intel_crtc(crtc)->config.port_clock,
ee9300bb 5562 refclk, NULL, clock);
6591c6e4
PZ		 5563 if (!ret)
5564 return false;
cda4b7d3 5565
ddc9003c 5566 if (is_lvds && dev_priv->lvds_downclock_avail) {
cec2f356
SP		 5567 /*
5568 * Ensure we match the reduced clock's P to the target clock.
5569 * If the clocks don't match, we can't switch the display clock
5570 * by using the FP0/FP1. In such case we will disable the LVDS
5571 * downclock feature.
5572 */
ee9300bb
DV		 5573 *has_reduced_clock =
5574 dev_priv->display.find_dpll(limit, crtc,
5575 dev_priv->lvds_downclock,
5576 refclk, clock,
5577 reduced_clock);
652c393a 5578 }
61e9653f 5579
6591c6e4
PZ		 5580 return true;
5581}
5582
01a415fd
DV		 5583static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
5584{
5585 struct drm_i915_private *dev_priv = dev->dev_private;
5586 uint32_t temp;
5587
5588 temp = I915_READ(SOUTH_CHICKEN1);
5589 if (temp & FDI_BC_BIFURCATION_SELECT)
5590 return;
5591
5592 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
5593 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
5594
5595 temp |= FDI_BC_BIFURCATION_SELECT;
5596 DRM_DEBUG_KMS("enabling fdi C rx\n");
5597 I915_WRITE(SOUTH_CHICKEN1, temp);
5598 POSTING_READ(SOUTH_CHICKEN1);
5599}
5600
ebfd86fd 5601static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
01a415fd
DV		 5602{
5603 struct drm_device *dev = intel_crtc->base.dev;
5604 struct drm_i915_private *dev_priv = dev->dev_private;
01a415fd
DV		 5605
5606 switch (intel_crtc->pipe) {
5607 case PIPE_A:
ebfd86fd 5608 break;
01a415fd 5609 case PIPE_B:
ebfd86fd 5610 if (intel_crtc->config.fdi_lanes > 2)
01a415fd
DV		 5611 WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
5612 else
5613 cpt_enable_fdi_bc_bifurcation(dev);
5614
ebfd86fd 5615 break;
01a415fd 5616 case PIPE_C:
01a415fd
DV		 5617 cpt_enable_fdi_bc_bifurcation(dev);
5618
ebfd86fd 5619 break;
01a415fd
DV		 5620 default:
5621 BUG();
5622 }
5623}
5624
d4b1931c
PZ		 5625int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
5626{
5627 /*
5628 * Account for spread spectrum to avoid
5629 * oversubscribing the link. Max center spread
5630 * is 2.5%; use 5% for safety's sake.
5631 */
5632 u32 bps = target_clock * bpp * 21 / 20;
5633 return bps / (link_bw * 8) + 1;
5634}
5635
7429e9d4 5636static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
6cf86a5e 5637{
7429e9d4 5638 return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
f48d8f23
PZ		 5639}
5640
de13a2e3 5641static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
7429e9d4 5642 u32 *fp,
9a7c7890 5643 intel_clock_t *reduced_clock, u32 *fp2)
79e53945 5644{
de13a2e3 5645 struct drm_crtc *crtc = &intel_crtc->base;
79e53945
JB		 5646 struct drm_device *dev = crtc->dev;
5647 struct drm_i915_private *dev_priv = dev->dev_private;
de13a2e3
PZ		 5648 struct intel_encoder *intel_encoder;
5649 uint32_t dpll;
6cc5f341 5650 int factor, num_connectors = 0;
09ede541 5651 bool is_lvds = false, is_sdvo = false;
79e53945 5652
de13a2e3
PZ		 5653 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5654 switch (intel_encoder->type) {
79e53945
JB		 5655 case INTEL_OUTPUT_LVDS:
5656 is_lvds = true;
5657 break;
5658 case INTEL_OUTPUT_SDVO:
7d57382e 5659 case INTEL_OUTPUT_HDMI:
79e53945 5660 is_sdvo = true;
79e53945 5661 break;
79e53945 5662 }
43565a06 5663
c751ce4f 5664 num_connectors++;
79e53945 5665 }
79e53945 5666
c1858123 5667 /* Enable autotuning of the PLL clock (if permissible) */
8febb297
EA		 5668 factor = 21;
5669 if (is_lvds) {
5670 if ((intel_panel_use_ssc(dev_priv) &&
41aa3448 5671 dev_priv->vbt.lvds_ssc_freq == 100) ||
f0b44056 5672 (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
8febb297 5673 factor = 25;
09ede541 5674 } else if (intel_crtc->config.sdvo_tv_clock)
8febb297 5675 factor = 20;
c1858123 5676
7429e9d4 5677 if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor))
7d0ac5b7 5678 *fp |= FP_CB_TUNE;
2c07245f 5679
9a7c7890
DV		 5680 if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
5681 *fp2 |= FP_CB_TUNE;
5682
5eddb70b 5683 dpll = 0;
2c07245f 5684
a07d6787
EA		 5685 if (is_lvds)
5686 dpll |= DPLLB_MODE_LVDS;
5687 else
5688 dpll |= DPLLB_MODE_DAC_SERIAL;
198a037f 5689
ef1b460d
DV		 5690 dpll |= (intel_crtc->config.pixel_multiplier - 1)
5691 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
198a037f
DV		 5692
5693 if (is_sdvo)
4a33e48d 5694 dpll |= DPLL_SDVO_HIGH_SPEED;
9566e9af 5695 if (intel_crtc->config.has_dp_encoder)
4a33e48d 5696 dpll |= DPLL_SDVO_HIGH_SPEED;
79e53945 5697
a07d6787 5698 /* compute bitmask from p1 value */
7429e9d4 5699 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
a07d6787 5700 /* also FPA1 */
7429e9d4 5701 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
a07d6787 5702
7429e9d4 5703 switch (intel_crtc->config.dpll.p2) {
a07d6787
EA		 5704 case 5:
5705 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
5706 break;
5707 case 7:
5708 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
5709 break;
5710 case 10:
5711 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
5712 break;
5713 case 14:
5714 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
5715 break;
79e53945
JB		 5716 }
5717
b4c09f3b 5718 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
43565a06 5719 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
79e53945
JB		 5720 else
5721 dpll |= PLL_REF_INPUT_DREFCLK;
5722
959e16d6 5723 return dpll | DPLL_VCO_ENABLE;
de13a2e3
PZ		 5724}
5725
5726static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
de13a2e3
PZ		 5727 int x, int y,
5728 struct drm_framebuffer *fb)
5729{
5730 struct drm_device *dev = crtc->dev;
5731 struct drm_i915_private *dev_priv = dev->dev_private;
5732 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5733 int pipe = intel_crtc->pipe;
5734 int plane = intel_crtc->plane;
5735 int num_connectors = 0;
5736 intel_clock_t clock, reduced_clock;
cbbab5bd 5737 u32 dpll = 0, fp = 0, fp2 = 0;
e2f12b07 5738 bool ok, has_reduced_clock = false;
8b47047b 5739 bool is_lvds = false;
de13a2e3 5740 struct intel_encoder *encoder;
e2b78267 5741 struct intel_shared_dpll *pll;
de13a2e3 5742 int ret;
de13a2e3
PZ		 5743
5744 for_each_encoder_on_crtc(dev, crtc, encoder) {
5745 switch (encoder->type) {
5746 case INTEL_OUTPUT_LVDS:
5747 is_lvds = true;
5748 break;
de13a2e3
PZ		 5749 }
5750
5751 num_connectors++;
a07d6787 5752 }
79e53945 5753
5dc5298b
PZ		 5754 WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
5755 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
a07d6787 5756
ff9a6750 5757 ok = ironlake_compute_clocks(crtc, &clock,
de13a2e3 5758 &has_reduced_clock, &reduced_clock);
ee9300bb 5759 if (!ok && !intel_crtc->config.clock_set) {
de13a2e3
PZ		 5760 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5761 return -EINVAL;
79e53945 5762 }
f47709a9
DV		 5763 /* Compat-code for transition, will disappear. */
5764 if (!intel_crtc->config.clock_set) {
5765 intel_crtc->config.dpll.n = clock.n;
5766 intel_crtc->config.dpll.m1 = clock.m1;
5767 intel_crtc->config.dpll.m2 = clock.m2;
5768 intel_crtc->config.dpll.p1 = clock.p1;
5769 intel_crtc->config.dpll.p2 = clock.p2;
5770 }
79e53945 5771
5dc5298b 5772 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
8b47047b 5773 if (intel_crtc->config.has_pch_encoder) {
7429e9d4 5774 fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
cbbab5bd 5775 if (has_reduced_clock)
7429e9d4 5776 fp2 = i9xx_dpll_compute_fp(&reduced_clock);
cbbab5bd 5777
7429e9d4 5778 dpll = ironlake_compute_dpll(intel_crtc,
cbbab5bd
DV		 5779 &fp, &reduced_clock,
5780 has_reduced_clock ? &fp2 : NULL);
5781
959e16d6 5782 intel_crtc->config.dpll_hw_state.dpll = dpll;
66e985c0
DV		 5783 intel_crtc->config.dpll_hw_state.fp0 = fp;
5784 if (has_reduced_clock)
5785 intel_crtc->config.dpll_hw_state.fp1 = fp2;
5786 else
5787 intel_crtc->config.dpll_hw_state.fp1 = fp;
5788
b89a1d39 5789 pll = intel_get_shared_dpll(intel_crtc);
ee7b9f93 5790 if (pll == NULL) {
84f44ce7
VS		 5791 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
5792 pipe_name(pipe));
4b645f14
JB		 5793 return -EINVAL;
5794 }
ee7b9f93 5795 } else
e72f9fbf 5796 intel_put_shared_dpll(intel_crtc);
79e53945 5797
03afc4a2
DV		 5798 if (intel_crtc->config.has_dp_encoder)
5799 intel_dp_set_m_n(intel_crtc);
79e53945 5800
bcd644e0
DV		 5801 if (is_lvds && has_reduced_clock && i915_powersave)
5802 intel_crtc->lowfreq_avail = true;
5803 else
5804 intel_crtc->lowfreq_avail = false;
e2b78267
DV		 5805
5806 if (intel_crtc->config.has_pch_encoder) {
5807 pll = intel_crtc_to_shared_dpll(intel_crtc);
5808
652c393a
JB		 5809 }
5810
8a654f3b 5811 intel_set_pipe_timings(intel_crtc);
5eddb70b 5812
ca3a0ff8 5813 if (intel_crtc->config.has_pch_encoder) {
ca3a0ff8
DV		 5814 intel_cpu_transcoder_set_m_n(intel_crtc,
5815 &intel_crtc->config.fdi_m_n);
5816 }
2c07245f 5817
ebfd86fd
DV		 5818 if (IS_IVYBRIDGE(dev))
5819 ivybridge_update_fdi_bc_bifurcation(intel_crtc);
79e53945 5820
6ff93609 5821 ironlake_set_pipeconf(crtc);
79e53945 5822
a1f9e77e
PZ		 5823 /* Set up the display plane register */
5824 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
b24e7179 5825 POSTING_READ(DSPCNTR(plane));
79e53945 5826
94352cf9 5827 ret = intel_pipe_set_base(crtc, x, y, fb);
7662c8bd
SL		 5828
5829 intel_update_watermarks(dev);
5830
1857e1da 5831 return ret;
79e53945
JB		 5832}
5833
72419203
DV		 5834static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc,
5835 struct intel_crtc_config *pipe_config)
5836{
5837 struct drm_device *dev = crtc->base.dev;
5838 struct drm_i915_private *dev_priv = dev->dev_private;
5839 enum transcoder transcoder = pipe_config->cpu_transcoder;
5840
5841 pipe_config->fdi_m_n.link_m = I915_READ(PIPE_LINK_M1(transcoder));
5842 pipe_config->fdi_m_n.link_n = I915_READ(PIPE_LINK_N1(transcoder));
5843 pipe_config->fdi_m_n.gmch_m = I915_READ(PIPE_DATA_M1(transcoder))
5844 & ~TU_SIZE_MASK;
5845 pipe_config->fdi_m_n.gmch_n = I915_READ(PIPE_DATA_N1(transcoder));
5846 pipe_config->fdi_m_n.tu = ((I915_READ(PIPE_DATA_M1(transcoder))
5847 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
5848}
5849
2fa2fe9a
DV		 5850static void ironlake_get_pfit_config(struct intel_crtc *crtc,
5851 struct intel_crtc_config *pipe_config)
5852{
5853 struct drm_device *dev = crtc->base.dev;
5854 struct drm_i915_private *dev_priv = dev->dev_private;
5855 uint32_t tmp;
5856
5857 tmp = I915_READ(PF_CTL(crtc->pipe));
5858
5859 if (tmp & PF_ENABLE) {
fd4daa9c 5860 pipe_config->pch_pfit.enabled = true;
2fa2fe9a
DV		 5861 pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe));
5862 pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe));
cb8b2a30
DV		 5863
5864 /* We currently do not free assignements of panel fitters on
5865 * ivb/hsw (since we don't use the higher upscaling modes which
5866 * differentiates them) so just WARN about this case for now. */
5867 if (IS_GEN7(dev)) {
5868 WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) !=
5869 PF_PIPE_SEL_IVB(crtc->pipe));
5870 }
2fa2fe9a 5871 }
79e53945
JB		 5872}
5873
0e8ffe1b
DV		 5874static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
5875 struct intel_crtc_config *pipe_config)
5876{
5877 struct drm_device *dev = crtc->base.dev;
5878 struct drm_i915_private *dev_priv = dev->dev_private;
5879 uint32_t tmp;
5880
e143a21c 5881 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
c0d43d62 5882 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
eccb140b 5883
0e8ffe1b
DV		 5884 tmp = I915_READ(PIPECONF(crtc->pipe));
5885 if (!(tmp & PIPECONF_ENABLE))
5886 return false;
5887
ab9412ba 5888 if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
66e985c0
DV		 5889 struct intel_shared_dpll *pll;
5890
88adfff1
DV		 5891 pipe_config->has_pch_encoder = true;
5892
627eb5a3
DV		 5893 tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
5894 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
5895 FDI_DP_PORT_WIDTH_SHIFT) + 1;
72419203
DV		 5896
5897 ironlake_get_fdi_m_n_config(crtc, pipe_config);
6c49f241 5898
c0d43d62 5899 if (HAS_PCH_IBX(dev_priv->dev)) {
d94ab068
DV		 5900 pipe_config->shared_dpll =
5901 (enum intel_dpll_id) crtc->pipe;
c0d43d62
DV		 5902 } else {
5903 tmp = I915_READ(PCH_DPLL_SEL);
5904 if (tmp & TRANS_DPLLB_SEL(crtc->pipe))
5905 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B;
5906 else
5907 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A;
5908 }
66e985c0
DV		 5909
5910 pll = &dev_priv->shared_dplls[pipe_config->shared_dpll];
5911
5912 WARN_ON(!pll->get_hw_state(dev_priv, pll,
5913 &pipe_config->dpll_hw_state));
c93f54cf
DV		 5914
5915 tmp = pipe_config->dpll_hw_state.dpll;
5916 pipe_config->pixel_multiplier =
5917 ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK)
5918 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1;
6c49f241
DV		 5919 } else {
5920 pipe_config->pixel_multiplier = 1;
627eb5a3
DV		 5921 }
5922
1bd1bd80
DV		 5923 intel_get_pipe_timings(crtc, pipe_config);
5924
2fa2fe9a
DV		 5925 ironlake_get_pfit_config(crtc, pipe_config);
5926
0e8ffe1b
DV		 5927 return true;
5928}
5929
be256dc7
PZ		 5930static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
5931{
5932 struct drm_device *dev = dev_priv->dev;
5933 struct intel_ddi_plls *plls = &dev_priv->ddi_plls;
5934 struct intel_crtc *crtc;
5935 unsigned long irqflags;
bd633a7c 5936 uint32_t val;
be256dc7
PZ		 5937
5938 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
5939 WARN(crtc->base.enabled, "CRTC for pipe %c enabled\n",
5940 pipe_name(crtc->pipe));
5941
5942 WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n");
5943 WARN(plls->spll_refcount, "SPLL enabled\n");
5944 WARN(plls->wrpll1_refcount, "WRPLL1 enabled\n");
5945 WARN(plls->wrpll2_refcount, "WRPLL2 enabled\n");
5946 WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n");
5947 WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE,
5948 "CPU PWM1 enabled\n");
5949 WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE,
5950 "CPU PWM2 enabled\n");
5951 WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE,
5952 "PCH PWM1 enabled\n");
5953 WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
5954 "Utility pin enabled\n");
5955 WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n");
5956
5957 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
5958 val = I915_READ(DEIMR);
5959 WARN((val & ~DE_PCH_EVENT_IVB) != val,
5960 "Unexpected DEIMR bits enabled: 0x%x\n", val);
5961 val = I915_READ(SDEIMR);
bd633a7c 5962 WARN((val | SDE_HOTPLUG_MASK_CPT) != 0xffffffff,
be256dc7
PZ		 5963 "Unexpected SDEIMR bits enabled: 0x%x\n", val);
5964 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
5965}
5966
5967/*
5968 * This function implements pieces of two sequences from BSpec:
5969 * - Sequence for display software to disable LCPLL
5970 * - Sequence for display software to allow package C8+
5971 * The steps implemented here are just the steps that actually touch the LCPLL
5972 * register. Callers should take care of disabling all the display engine
5973 * functions, doing the mode unset, fixing interrupts, etc.
5974 */
5975void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
5976 bool switch_to_fclk, bool allow_power_down)
5977{
5978 uint32_t val;
5979
5980 assert_can_disable_lcpll(dev_priv);
5981
5982 val = I915_READ(LCPLL_CTL);
5983
5984 if (switch_to_fclk) {
5985 val |= LCPLL_CD_SOURCE_FCLK;
5986 I915_WRITE(LCPLL_CTL, val);
5987
5988 if (wait_for_atomic_us(I915_READ(LCPLL_CTL) &
5989 LCPLL_CD_SOURCE_FCLK_DONE, 1))
5990 DRM_ERROR("Switching to FCLK failed\n");
5991
5992 val = I915_READ(LCPLL_CTL);
5993 }
5994
5995 val |= LCPLL_PLL_DISABLE;
5996 I915_WRITE(LCPLL_CTL, val);
5997 POSTING_READ(LCPLL_CTL);
5998
5999 if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1))
6000 DRM_ERROR("LCPLL still locked\n");
6001
6002 val = I915_READ(D_COMP);
6003 val |= D_COMP_COMP_DISABLE;
6004 I915_WRITE(D_COMP, val);
6005 POSTING_READ(D_COMP);
6006 ndelay(100);
6007
6008 if (wait_for((I915_READ(D_COMP) & D_COMP_RCOMP_IN_PROGRESS) == 0, 1))
6009 DRM_ERROR("D_COMP RCOMP still in progress\n");
6010
6011 if (allow_power_down) {
6012 val = I915_READ(LCPLL_CTL);
6013 val |= LCPLL_POWER_DOWN_ALLOW;
6014 I915_WRITE(LCPLL_CTL, val);
6015 POSTING_READ(LCPLL_CTL);
6016 }
6017}
6018
6019/*
6020 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
6021 * source.
6022 */
6023void hsw_restore_lcpll(struct drm_i915_private *dev_priv)
6024{
6025 uint32_t val;
6026
6027 val = I915_READ(LCPLL_CTL);
6028
6029 if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK |
6030 LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK)
6031 return;
6032
215733fa
PZ		 6033 /* Make sure we're not on PC8 state before disabling PC8, otherwise
6034 * we'll hang the machine! */
6035 dev_priv->uncore.funcs.force_wake_get(dev_priv);
6036
be256dc7
PZ		 6037 if (val & LCPLL_POWER_DOWN_ALLOW) {
6038 val &= ~LCPLL_POWER_DOWN_ALLOW;
6039 I915_WRITE(LCPLL_CTL, val);
35d8f2eb 6040 POSTING_READ(LCPLL_CTL);
be256dc7
PZ		 6041 }
6042
6043 val = I915_READ(D_COMP);
6044 val |= D_COMP_COMP_FORCE;
6045 val &= ~D_COMP_COMP_DISABLE;
6046 I915_WRITE(D_COMP, val);
35d8f2eb 6047 POSTING_READ(D_COMP);
be256dc7
PZ		 6048
6049 val = I915_READ(LCPLL_CTL);
6050 val &= ~LCPLL_PLL_DISABLE;
6051 I915_WRITE(LCPLL_CTL, val);
6052
6053 if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5))
6054 DRM_ERROR("LCPLL not locked yet\n");
6055
6056 if (val & LCPLL_CD_SOURCE_FCLK) {
6057 val = I915_READ(LCPLL_CTL);
6058 val &= ~LCPLL_CD_SOURCE_FCLK;
6059 I915_WRITE(LCPLL_CTL, val);
6060
6061 if (wait_for_atomic_us((I915_READ(LCPLL_CTL) &
6062 LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
6063 DRM_ERROR("Switching back to LCPLL failed\n");
6064 }
215733fa
PZ		 6065
6066 dev_priv->uncore.funcs.force_wake_put(dev_priv);
be256dc7
PZ		 6067}
6068
c67a470b
PZ		 6069void hsw_enable_pc8_work(struct work_struct *__work)
6070{
6071 struct drm_i915_private *dev_priv =
6072 container_of(to_delayed_work(__work), struct drm_i915_private,
6073 pc8.enable_work);
6074 struct drm_device *dev = dev_priv->dev;
6075 uint32_t val;
6076
6077 if (dev_priv->pc8.enabled)
6078 return;
6079
6080 DRM_DEBUG_KMS("Enabling package C8+\n");
6081
6082 dev_priv->pc8.enabled = true;
6083
6084 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
6085 val = I915_READ(SOUTH_DSPCLK_GATE_D);
6086 val &= ~PCH_LP_PARTITION_LEVEL_DISABLE;
6087 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
6088 }
6089
6090 lpt_disable_clkout_dp(dev);
6091 hsw_pc8_disable_interrupts(dev);
6092 hsw_disable_lcpll(dev_priv, true, true);
6093}
6094
6095static void __hsw_enable_package_c8(struct drm_i915_private *dev_priv)
6096{
6097 WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
6098 WARN(dev_priv->pc8.disable_count < 1,
6099 "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
6100
6101 dev_priv->pc8.disable_count--;
6102 if (dev_priv->pc8.disable_count != 0)
6103 return;
6104
6105 schedule_delayed_work(&dev_priv->pc8.enable_work,
90058745 6106 msecs_to_jiffies(i915_pc8_timeout));
c67a470b
PZ		 6107}
6108
6109static void __hsw_disable_package_c8(struct drm_i915_private *dev_priv)
6110{
6111 struct drm_device *dev = dev_priv->dev;
6112 uint32_t val;
6113
6114 WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
6115 WARN(dev_priv->pc8.disable_count < 0,
6116 "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
6117
6118 dev_priv->pc8.disable_count++;
6119 if (dev_priv->pc8.disable_count != 1)
6120 return;
6121
6122 cancel_delayed_work_sync(&dev_priv->pc8.enable_work);
6123 if (!dev_priv->pc8.enabled)
6124 return;
6125
6126 DRM_DEBUG_KMS("Disabling package C8+\n");
6127
6128 hsw_restore_lcpll(dev_priv);
6129 hsw_pc8_restore_interrupts(dev);
6130 lpt_init_pch_refclk(dev);
6131
6132 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
6133 val = I915_READ(SOUTH_DSPCLK_GATE_D);
6134 val |= PCH_LP_PARTITION_LEVEL_DISABLE;
6135 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
6136 }
6137
6138 intel_prepare_ddi(dev);
6139 i915_gem_init_swizzling(dev);
6140 mutex_lock(&dev_priv->rps.hw_lock);
6141 gen6_update_ring_freq(dev);
6142 mutex_unlock(&dev_priv->rps.hw_lock);
6143 dev_priv->pc8.enabled = false;
6144}
6145
6146void hsw_enable_package_c8(struct drm_i915_private *dev_priv)
6147{
6148 mutex_lock(&dev_priv->pc8.lock);
6149 __hsw_enable_package_c8(dev_priv);
6150 mutex_unlock(&dev_priv->pc8.lock);
6151}
6152
6153void hsw_disable_package_c8(struct drm_i915_private *dev_priv)
6154{
6155 mutex_lock(&dev_priv->pc8.lock);
6156 __hsw_disable_package_c8(dev_priv);
6157 mutex_unlock(&dev_priv->pc8.lock);
6158}
6159
6160static bool hsw_can_enable_package_c8(struct drm_i915_private *dev_priv)
6161{
6162 struct drm_device *dev = dev_priv->dev;
6163 struct intel_crtc *crtc;
6164 uint32_t val;
6165
6166 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
6167 if (crtc->base.enabled)
6168 return false;
6169
6170 /* This case is still possible since we have the i915.disable_power_well
6171 * parameter and also the KVMr or something else might be requesting the
6172 * power well. */
6173 val = I915_READ(HSW_PWR_WELL_DRIVER);
6174 if (val != 0) {
6175 DRM_DEBUG_KMS("Not enabling PC8: power well on\n");
6176 return false;
6177 }
6178
6179 return true;
6180}
6181
6182/* Since we're called from modeset_global_resources there's no way to
6183 * symmetrically increase and decrease the refcount, so we use
6184 * dev_priv->pc8.requirements_met to track whether we already have the refcount
6185 * or not.
6186 */
6187static void hsw_update_package_c8(struct drm_device *dev)
6188{
6189 struct drm_i915_private *dev_priv = dev->dev_private;
6190 bool allow;
6191
6192 if (!i915_enable_pc8)
6193 return;
6194
6195 mutex_lock(&dev_priv->pc8.lock);
6196
6197 allow = hsw_can_enable_package_c8(dev_priv);
6198
6199 if (allow == dev_priv->pc8.requirements_met)
6200 goto done;
6201
6202 dev_priv->pc8.requirements_met = allow;
6203
6204 if (allow)
6205 __hsw_enable_package_c8(dev_priv);
6206 else
6207 __hsw_disable_package_c8(dev_priv);
6208
6209done:
6210 mutex_unlock(&dev_priv->pc8.lock);
6211}
6212
6213static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv)
6214{
6215 if (!dev_priv->pc8.gpu_idle) {
6216 dev_priv->pc8.gpu_idle = true;
6217 hsw_enable_package_c8(dev_priv);
6218 }
6219}
6220
6221static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv)
6222{
6223 if (dev_priv->pc8.gpu_idle) {
6224 dev_priv->pc8.gpu_idle = false;
6225 hsw_disable_package_c8(dev_priv);
6226 }
be256dc7
PZ		 6227}
6228
d6dd9eb1
DV		 6229static void haswell_modeset_global_resources(struct drm_device *dev)
6230{
d6dd9eb1
DV		 6231 bool enable = false;
6232 struct intel_crtc *crtc;
d6dd9eb1
DV		 6233
6234 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
e7a639c4
DV		 6235 if (!crtc->base.enabled)
6236 continue;
d6dd9eb1 6237
fd4daa9c 6238 if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.enabled ||
e7a639c4 6239 crtc->config.cpu_transcoder != TRANSCODER_EDP)
d6dd9eb1
DV		 6240 enable = true;
6241 }
6242
d6dd9eb1 6243 intel_set_power_well(dev, enable);
c67a470b
PZ		 6244
6245 hsw_update_package_c8(dev);
d6dd9eb1
DV		 6246}
6247
09b4ddf9 6248static int haswell_crtc_mode_set(struct drm_crtc *crtc,
09b4ddf9
PZ		 6249 int x, int y,
6250 struct drm_framebuffer *fb)
6251{
6252 struct drm_device *dev = crtc->dev;
6253 struct drm_i915_private *dev_priv = dev->dev_private;
6254 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
09b4ddf9 6255 int plane = intel_crtc->plane;
09b4ddf9 6256 int ret;
09b4ddf9 6257
ff9a6750 6258 if (!intel_ddi_pll_mode_set(crtc))
6441ab5f
PZ		 6259 return -EINVAL;
6260
03afc4a2
DV		 6261 if (intel_crtc->config.has_dp_encoder)
6262 intel_dp_set_m_n(intel_crtc);
09b4ddf9
PZ		 6263
6264 intel_crtc->lowfreq_avail = false;
09b4ddf9 6265
8a654f3b 6266 intel_set_pipe_timings(intel_crtc);
09b4ddf9 6267
ca3a0ff8 6268 if (intel_crtc->config.has_pch_encoder) {
ca3a0ff8
DV		 6269 intel_cpu_transcoder_set_m_n(intel_crtc,
6270 &intel_crtc->config.fdi_m_n);
6271 }
09b4ddf9 6272
6ff93609 6273 haswell_set_pipeconf(crtc);
09b4ddf9 6274
50f3b016 6275 intel_set_pipe_csc(crtc);
86d3efce 6276
09b4ddf9 6277 /* Set up the display plane register */
86d3efce 6278 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
09b4ddf9
PZ		 6279 POSTING_READ(DSPCNTR(plane));
6280
6281 ret = intel_pipe_set_base(crtc, x, y, fb);
6282
6283 intel_update_watermarks(dev);
6284
1f803ee5 6285 return ret;
79e53945
JB		 6286}
6287
0e8ffe1b
DV		 6288static bool haswell_get_pipe_config(struct intel_crtc *crtc,
6289 struct intel_crtc_config *pipe_config)
6290{
6291 struct drm_device *dev = crtc->base.dev;
6292 struct drm_i915_private *dev_priv = dev->dev_private;
2fa2fe9a 6293 enum intel_display_power_domain pfit_domain;
0e8ffe1b
DV		 6294 uint32_t tmp;
6295
e143a21c 6296 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
c0d43d62
DV		 6297 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
6298
eccb140b
DV		 6299 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
6300 if (tmp & TRANS_DDI_FUNC_ENABLE) {
6301 enum pipe trans_edp_pipe;
6302 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
6303 default:
6304 WARN(1, "unknown pipe linked to edp transcoder\n");
6305 case TRANS_DDI_EDP_INPUT_A_ONOFF:
6306 case TRANS_DDI_EDP_INPUT_A_ON:
6307 trans_edp_pipe = PIPE_A;
6308 break;
6309 case TRANS_DDI_EDP_INPUT_B_ONOFF:
6310 trans_edp_pipe = PIPE_B;
6311 break;
6312 case TRANS_DDI_EDP_INPUT_C_ONOFF:
6313 trans_edp_pipe = PIPE_C;
6314 break;
6315 }
6316
6317 if (trans_edp_pipe == crtc->pipe)
6318 pipe_config->cpu_transcoder = TRANSCODER_EDP;
6319 }
6320
b97186f0 6321 if (!intel_display_power_enabled(dev,
eccb140b 6322 POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder)))
2bfce950
PZ		 6323 return false;
6324
eccb140b 6325 tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder));
0e8ffe1b
DV		 6326 if (!(tmp & PIPECONF_ENABLE))
6327 return false;
6328
88adfff1 6329 /*
f196e6be 6330 * Haswell has only FDI/PCH transcoder A. It is which is connected to
88adfff1
DV		 6331 * DDI E. So just check whether this pipe is wired to DDI E and whether
6332 * the PCH transcoder is on.
6333 */
eccb140b 6334 tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
88adfff1 6335 if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
ab9412ba 6336 I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
88adfff1
DV		 6337 pipe_config->has_pch_encoder = true;
6338
627eb5a3
DV		 6339 tmp = I915_READ(FDI_RX_CTL(PIPE_A));
6340 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
6341 FDI_DP_PORT_WIDTH_SHIFT) + 1;
72419203
DV		 6342
6343 ironlake_get_fdi_m_n_config(crtc, pipe_config);
627eb5a3
DV		 6344 }
6345
1bd1bd80
DV		 6346 intel_get_pipe_timings(crtc, pipe_config);
6347
2fa2fe9a
DV		 6348 pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
6349 if (intel_display_power_enabled(dev, pfit_domain))
6350 ironlake_get_pfit_config(crtc, pipe_config);
88adfff1 6351
42db64ef
PZ		 6352 pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) &&
6353 (I915_READ(IPS_CTL) & IPS_ENABLE);
6354
6c49f241
DV		 6355 pipe_config->pixel_multiplier = 1;
6356
0e8ffe1b
DV		 6357 return true;
6358}
6359
f564048e 6360static int intel_crtc_mode_set(struct drm_crtc *crtc,
f564048e 6361 int x, int y,
94352cf9 6362 struct drm_framebuffer *fb)
f564048e
EA		 6363{
6364 struct drm_device *dev = crtc->dev;
6365 struct drm_i915_private *dev_priv = dev->dev_private;
9256aa19 6366 struct intel_encoder *encoder;
0b701d27 6367 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
b8cecdf5 6368 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
0b701d27 6369 int pipe = intel_crtc->pipe;
f564048e
EA		 6370 int ret;
6371
0b701d27 6372 drm_vblank_pre_modeset(dev, pipe);
7662c8bd 6373
b8cecdf5
DV		 6374 ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
6375
79e53945 6376 drm_vblank_post_modeset(dev, pipe);
5c3b82e2 6377
9256aa19
DV		 6378 if (ret != 0)
6379 return ret;
6380
6381 for_each_encoder_on_crtc(dev, crtc, encoder) {
6382 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
6383 encoder->base.base.id,
6384 drm_get_encoder_name(&encoder->base),
6385 mode->base.id, mode->name);
36f2d1f1 6386 encoder->mode_set(encoder);
9256aa19
DV		 6387 }
6388
6389 return 0;
79e53945
JB		 6390}
6391
3a9627f4
WF		 6392static bool intel_eld_uptodate(struct drm_connector *connector,
6393 int reg_eldv, uint32_t bits_eldv,
6394 int reg_elda, uint32_t bits_elda,
6395 int reg_edid)
6396{
6397 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6398 uint8_t *eld = connector->eld;
6399 uint32_t i;
6400
6401 i = I915_READ(reg_eldv);
6402 i &= bits_eldv;
6403
6404 if (!eld[0])
6405 return !i;
6406
6407 if (!i)
6408 return false;
6409
6410 i = I915_READ(reg_elda);
6411 i &= ~bits_elda;
6412 I915_WRITE(reg_elda, i);
6413
6414 for (i = 0; i < eld[2]; i++)
6415 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
6416 return false;
6417
6418 return true;
6419}
6420
e0dac65e
WF		 6421static void g4x_write_eld(struct drm_connector *connector,
6422 struct drm_crtc *crtc)
6423{
6424 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6425 uint8_t *eld = connector->eld;
6426 uint32_t eldv;
6427 uint32_t len;
6428 uint32_t i;
6429
6430 i = I915_READ(G4X_AUD_VID_DID);
6431
6432 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
6433 eldv = G4X_ELDV_DEVCL_DEVBLC;
6434 else
6435 eldv = G4X_ELDV_DEVCTG;
6436
3a9627f4
WF		 6437 if (intel_eld_uptodate(connector,
6438 G4X_AUD_CNTL_ST, eldv,
6439 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
6440 G4X_HDMIW_HDMIEDID))
6441 return;
6442
e0dac65e
WF		 6443 i = I915_READ(G4X_AUD_CNTL_ST);
6444 i &= ~(eldv | G4X_ELD_ADDR);
6445 len = (i >> 9) & 0x1f; /* ELD buffer size */
6446 I915_WRITE(G4X_AUD_CNTL_ST, i);
6447
6448 if (!eld[0])
6449 return;
6450
6451 len = min_t(uint8_t, eld[2], len);
6452 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6453 for (i = 0; i < len; i++)
6454 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
6455
6456 i = I915_READ(G4X_AUD_CNTL_ST);
6457 i |= eldv;
6458 I915_WRITE(G4X_AUD_CNTL_ST, i);
6459}
6460
83358c85
WX		 6461static void haswell_write_eld(struct drm_connector *connector,
6462 struct drm_crtc *crtc)
6463{
6464 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6465 uint8_t *eld = connector->eld;
6466 struct drm_device *dev = crtc->dev;
7b9f35a6 6467 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
83358c85
WX		 6468 uint32_t eldv;
6469 uint32_t i;
6470 int len;
6471 int pipe = to_intel_crtc(crtc)->pipe;
6472 int tmp;
6473
6474 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
6475 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
6476 int aud_config = HSW_AUD_CFG(pipe);
6477 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
6478
6479
6480 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
6481
6482 /* Audio output enable */
6483 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
6484 tmp = I915_READ(aud_cntrl_st2);
6485 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
6486 I915_WRITE(aud_cntrl_st2, tmp);
6487
6488 /* Wait for 1 vertical blank */
6489 intel_wait_for_vblank(dev, pipe);
6490
6491 /* Set ELD valid state */
6492 tmp = I915_READ(aud_cntrl_st2);
7e7cb34f 6493 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp);
83358c85
WX		 6494 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
6495 I915_WRITE(aud_cntrl_st2, tmp);
6496 tmp = I915_READ(aud_cntrl_st2);
7e7cb34f 6497 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp);
83358c85
WX		 6498
6499 /* Enable HDMI mode */
6500 tmp = I915_READ(aud_config);
7e7cb34f 6501 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp);
83358c85
WX		 6502 /* clear N_programing_enable and N_value_index */
6503 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
6504 I915_WRITE(aud_config, tmp);
6505
6506 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6507
6508 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
7b9f35a6 6509 intel_crtc->eld_vld = true;
83358c85
WX		 6510
6511 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6512 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6513 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6514 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6515 } else
6516 I915_WRITE(aud_config, 0);
6517
6518 if (intel_eld_uptodate(connector,
6519 aud_cntrl_st2, eldv,
6520 aud_cntl_st, IBX_ELD_ADDRESS,
6521 hdmiw_hdmiedid))
6522 return;
6523
6524 i = I915_READ(aud_cntrl_st2);
6525 i &= ~eldv;
6526 I915_WRITE(aud_cntrl_st2, i);
6527
6528 if (!eld[0])
6529 return;
6530
6531 i = I915_READ(aud_cntl_st);
6532 i &= ~IBX_ELD_ADDRESS;
6533 I915_WRITE(aud_cntl_st, i);
6534 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6535 DRM_DEBUG_DRIVER("port num:%d\n", i);
6536
6537 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6538 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6539 for (i = 0; i < len; i++)
6540 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6541
6542 i = I915_READ(aud_cntrl_st2);
6543 i |= eldv;
6544 I915_WRITE(aud_cntrl_st2, i);
6545
6546}
6547
e0dac65e
WF		 6548static void ironlake_write_eld(struct drm_connector *connector,
6549 struct drm_crtc *crtc)
6550{
6551 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6552 uint8_t *eld = connector->eld;
6553 uint32_t eldv;
6554 uint32_t i;
6555 int len;
6556 int hdmiw_hdmiedid;
b6daa025 6557 int aud_config;
e0dac65e
WF		 6558 int aud_cntl_st;
6559 int aud_cntrl_st2;
9b138a83 6560 int pipe = to_intel_crtc(crtc)->pipe;
e0dac65e 6561
b3f33cbf 6562 if (HAS_PCH_IBX(connector->dev)) {
9b138a83
WX		 6563 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
6564 aud_config = IBX_AUD_CFG(pipe);
6565 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
1202b4c6 6566 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
e0dac65e 6567 } else {
9b138a83
WX		 6568 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
6569 aud_config = CPT_AUD_CFG(pipe);
6570 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
1202b4c6 6571 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
e0dac65e
WF		 6572 }
6573
9b138a83 6574 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
e0dac65e
WF		 6575
6576 i = I915_READ(aud_cntl_st);
9b138a83 6577 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
e0dac65e
WF		 6578 if (!i) {
6579 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
6580 /* operate blindly on all ports */
1202b4c6
WF		 6581 eldv = IBX_ELD_VALIDB;
6582 eldv |= IBX_ELD_VALIDB << 4;
6583 eldv |= IBX_ELD_VALIDB << 8;
e0dac65e 6584 } else {
2582a850 6585 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i));
1202b4c6 6586 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
e0dac65e
WF		 6587 }
6588
3a9627f4
WF		 6589 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6590 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6591 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
b6daa025
WF		 6592 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6593 } else
6594 I915_WRITE(aud_config, 0);
e0dac65e 6595
3a9627f4
WF		 6596 if (intel_eld_uptodate(connector,
6597 aud_cntrl_st2, eldv,
6598 aud_cntl_st, IBX_ELD_ADDRESS,
6599 hdmiw_hdmiedid))
6600 return;
6601
e0dac65e
WF		 6602 i = I915_READ(aud_cntrl_st2);
6603 i &= ~eldv;
6604 I915_WRITE(aud_cntrl_st2, i);
6605
6606 if (!eld[0])
6607 return;
6608
e0dac65e 6609 i = I915_READ(aud_cntl_st);
1202b4c6 6610 i &= ~IBX_ELD_ADDRESS;
e0dac65e
WF		 6611 I915_WRITE(aud_cntl_st, i);
6612
6613 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6614 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6615 for (i = 0; i < len; i++)
6616 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6617
6618 i = I915_READ(aud_cntrl_st2);
6619 i |= eldv;
6620 I915_WRITE(aud_cntrl_st2, i);
6621}
6622
6623void intel_write_eld(struct drm_encoder *encoder,
6624 struct drm_display_mode *mode)
6625{
6626 struct drm_crtc *crtc = encoder->crtc;
6627 struct drm_connector *connector;
6628 struct drm_device *dev = encoder->dev;
6629 struct drm_i915_private *dev_priv = dev->dev_private;
6630
6631 connector = drm_select_eld(encoder, mode);
6632 if (!connector)
6633 return;
6634
6635 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6636 connector->base.id,
6637 drm_get_connector_name(connector),
6638 connector->encoder->base.id,
6639 drm_get_encoder_name(connector->encoder));
6640
6641 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
6642
6643 if (dev_priv->display.write_eld)
6644 dev_priv->display.write_eld(connector, crtc);
6645}
6646
79e53945
JB		 6647/** Loads the palette/gamma unit for the CRTC with the prepared values */
6648void intel_crtc_load_lut(struct drm_crtc *crtc)
6649{
6650 struct drm_device *dev = crtc->dev;
6651 struct drm_i915_private *dev_priv = dev->dev_private;
6652 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
42db64ef
PZ		 6653 enum pipe pipe = intel_crtc->pipe;
6654 int palreg = PALETTE(pipe);
79e53945 6655 int i;
42db64ef 6656 bool reenable_ips = false;
79e53945
JB		 6657
6658 /* The clocks have to be on to load the palette. */
aed3f09d 6659 if (!crtc->enabled || !intel_crtc->active)
79e53945
JB		 6660 return;
6661
14420bd0
VS		 6662 if (!HAS_PCH_SPLIT(dev_priv->dev))
6663 assert_pll_enabled(dev_priv, pipe);
6664
f2b115e6 6665 /* use legacy palette for Ironlake */
bad720ff 6666 if (HAS_PCH_SPLIT(dev))
42db64ef
PZ		 6667 palreg = LGC_PALETTE(pipe);
6668
6669 /* Workaround : Do not read or write the pipe palette/gamma data while
6670 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
6671 */
6672 if (intel_crtc->config.ips_enabled &&
6673 ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) ==
6674 GAMMA_MODE_MODE_SPLIT)) {
6675 hsw_disable_ips(intel_crtc);
6676 reenable_ips = true;
6677 }
2c07245f 6678
79e53945
JB		 6679 for (i = 0; i < 256; i++) {
6680 I915_WRITE(palreg + 4 * i,
6681 (intel_crtc->lut_r[i] << 16) |
6682 (intel_crtc->lut_g[i] << 8) |
6683 intel_crtc->lut_b[i]);
6684 }
42db64ef
PZ		 6685
6686 if (reenable_ips)
6687 hsw_enable_ips(intel_crtc);
79e53945
JB		 6688}
6689
560b85bb
CW		 6690static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
6691{
6692 struct drm_device *dev = crtc->dev;
6693 struct drm_i915_private *dev_priv = dev->dev_private;
6694 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6695 bool visible = base != 0;
6696 u32 cntl;
6697
6698 if (intel_crtc->cursor_visible == visible)
6699 return;
6700
9db4a9c7 6701 cntl = I915_READ(_CURACNTR);
560b85bb
CW		 6702 if (visible) {
6703 /* On these chipsets we can only modify the base whilst
6704 * the cursor is disabled.
6705 */
9db4a9c7 6706 I915_WRITE(_CURABASE, base);
560b85bb
CW		 6707
6708 cntl &= ~(CURSOR_FORMAT_MASK);
6709 /* XXX width must be 64, stride 256 => 0x00 << 28 */
6710 cntl |= CURSOR_ENABLE |
6711 CURSOR_GAMMA_ENABLE |
6712 CURSOR_FORMAT_ARGB;
6713 } else
6714 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
9db4a9c7 6715 I915_WRITE(_CURACNTR, cntl);
560b85bb
CW		 6716
6717 intel_crtc->cursor_visible = visible;
6718}
6719
6720static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
6721{
6722 struct drm_device *dev = crtc->dev;
6723 struct drm_i915_private *dev_priv = dev->dev_private;
6724 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6725 int pipe = intel_crtc->pipe;
6726 bool visible = base != 0;
6727
6728 if (intel_crtc->cursor_visible != visible) {
548f245b 6729 uint32_t cntl = I915_READ(CURCNTR(pipe));
560b85bb
CW		 6730 if (base) {
6731 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
6732 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6733 cntl |= pipe << 28; /* Connect to correct pipe */
6734 } else {
6735 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6736 cntl |= CURSOR_MODE_DISABLE;
6737 }
9db4a9c7 6738 I915_WRITE(CURCNTR(pipe), cntl);
560b85bb
CW		 6739
6740 intel_crtc->cursor_visible = visible;
6741 }
6742 /* and commit changes on next vblank */
9db4a9c7 6743 I915_WRITE(CURBASE(pipe), base);
560b85bb
CW		 6744}
6745
65a21cd6
JB		 6746static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
6747{
6748 struct drm_device *dev = crtc->dev;
6749 struct drm_i915_private *dev_priv = dev->dev_private;
6750 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6751 int pipe = intel_crtc->pipe;
6752 bool visible = base != 0;
6753
6754 if (intel_crtc->cursor_visible != visible) {
6755 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
6756 if (base) {
6757 cntl &= ~CURSOR_MODE;
6758 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6759 } else {
6760 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6761 cntl |= CURSOR_MODE_DISABLE;
6762 }
1f5d76db 6763 if (IS_HASWELL(dev)) {
86d3efce 6764 cntl |= CURSOR_PIPE_CSC_ENABLE;
1f5d76db
PZ		 6765 cntl &= ~CURSOR_TRICKLE_FEED_DISABLE;
6766 }
65a21cd6
JB		 6767 I915_WRITE(CURCNTR_IVB(pipe), cntl);
6768
6769 intel_crtc->cursor_visible = visible;
6770 }
6771 /* and commit changes on next vblank */
6772 I915_WRITE(CURBASE_IVB(pipe), base);
6773}
6774
cda4b7d3 6775/* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
6b383a7f
CW		 6776static void intel_crtc_update_cursor(struct drm_crtc *crtc,
6777 bool on)
cda4b7d3
CW		 6778{
6779 struct drm_device *dev = crtc->dev;
6780 struct drm_i915_private *dev_priv = dev->dev_private;
6781 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6782 int pipe = intel_crtc->pipe;
6783 int x = intel_crtc->cursor_x;
6784 int y = intel_crtc->cursor_y;
560b85bb 6785 u32 base, pos;
cda4b7d3
CW		 6786 bool visible;
6787
6788 pos = 0;
6789
6b383a7f 6790 if (on && crtc->enabled && crtc->fb) {
cda4b7d3
CW		 6791 base = intel_crtc->cursor_addr;
6792 if (x > (int) crtc->fb->width)
6793 base = 0;
6794
6795 if (y > (int) crtc->fb->height)
6796 base = 0;
6797 } else
6798 base = 0;
6799
6800 if (x < 0) {
6801 if (x + intel_crtc->cursor_width < 0)
6802 base = 0;
6803
6804 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
6805 x = -x;
6806 }
6807 pos |= x << CURSOR_X_SHIFT;
6808
6809 if (y < 0) {
6810 if (y + intel_crtc->cursor_height < 0)
6811 base = 0;
6812
6813 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
6814 y = -y;
6815 }
6816 pos |= y << CURSOR_Y_SHIFT;
6817
6818 visible = base != 0;
560b85bb 6819 if (!visible && !intel_crtc->cursor_visible)
cda4b7d3
CW		 6820 return;
6821
0cd83aa9 6822 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
65a21cd6
JB		 6823 I915_WRITE(CURPOS_IVB(pipe), pos);
6824 ivb_update_cursor(crtc, base);
6825 } else {
6826 I915_WRITE(CURPOS(pipe), pos);
6827 if (IS_845G(dev) || IS_I865G(dev))
6828 i845_update_cursor(crtc, base);
6829 else
6830 i9xx_update_cursor(crtc, base);
6831 }
cda4b7d3
CW		 6832}
6833
79e53945 6834static int intel_crtc_cursor_set(struct drm_crtc *crtc,
05394f39 6835 struct drm_file *file,
79e53945
JB		 6836 uint32_t handle,
6837 uint32_t width, uint32_t height)
6838{
6839 struct drm_device *dev = crtc->dev;
6840 struct drm_i915_private *dev_priv = dev->dev_private;
6841 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
05394f39 6842 struct drm_i915_gem_object *obj;
cda4b7d3 6843 uint32_t addr;
3f8bc370 6844 int ret;
79e53945 6845
79e53945
JB		 6846 /* if we want to turn off the cursor ignore width and height */
6847 if (!handle) {
28c97730 6848 DRM_DEBUG_KMS("cursor off\n");
3f8bc370 6849 addr = 0;
05394f39 6850 obj = NULL;
5004417d 6851 mutex_lock(&dev->struct_mutex);
3f8bc370 6852 goto finish;
79e53945
JB		 6853 }
6854
6855 /* Currently we only support 64x64 cursors */
6856 if (width != 64 || height != 64) {
6857 DRM_ERROR("we currently only support 64x64 cursors\n");
6858 return -EINVAL;
6859 }
6860
05394f39 6861 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
c8725226 6862 if (&obj->base == NULL)
79e53945
JB		 6863 return -ENOENT;
6864
05394f39 6865 if (obj->base.size < width * height * 4) {
79e53945 6866 DRM_ERROR("buffer is to small\n");
34b8686e
DA		 6867 ret = -ENOMEM;
6868 goto fail;
79e53945
JB		 6869 }
6870
71acb5eb 6871 /* we only need to pin inside GTT if cursor is non-phy */
7f9872e0 6872 mutex_lock(&dev->struct_mutex);
b295d1b6 6873 if (!dev_priv->info->cursor_needs_physical) {
693db184
CW		 6874 unsigned alignment;
6875
d9e86c0e
CW		 6876 if (obj->tiling_mode) {
6877 DRM_ERROR("cursor cannot be tiled\n");
6878 ret = -EINVAL;
6879 goto fail_locked;
6880 }
6881
693db184
CW		 6882 /* Note that the w/a also requires 2 PTE of padding following
6883 * the bo. We currently fill all unused PTE with the shadow
6884 * page and so we should always have valid PTE following the
6885 * cursor preventing the VT-d warning.
6886 */
6887 alignment = 0;
6888 if (need_vtd_wa(dev))
6889 alignment = 64*1024;
6890
6891 ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
e7b526bb
CW		 6892 if (ret) {
6893 DRM_ERROR("failed to move cursor bo into the GTT\n");
2da3b9b9 6894 goto fail_locked;
e7b526bb
CW		 6895 }
6896
d9e86c0e
CW		 6897 ret = i915_gem_object_put_fence(obj);
6898 if (ret) {
2da3b9b9 6899 DRM_ERROR("failed to release fence for cursor");
d9e86c0e
CW		 6900 goto fail_unpin;
6901 }
6902
f343c5f6 6903 addr = i915_gem_obj_ggtt_offset(obj);
71acb5eb 6904 } else {
6eeefaf3 6905 int align = IS_I830(dev) ? 16 * 1024 : 256;
05394f39 6906 ret = i915_gem_attach_phys_object(dev, obj,
6eeefaf3
CW		 6907 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
6908 align);
71acb5eb
DA		 6909 if (ret) {
6910 DRM_ERROR("failed to attach phys object\n");
7f9872e0 6911 goto fail_locked;
71acb5eb 6912 }
05394f39 6913 addr = obj->phys_obj->handle->busaddr;
3f8bc370
KH		 6914 }
6915
a6c45cf0 6916 if (IS_GEN2(dev))
14b60391
JB		 6917 I915_WRITE(CURSIZE, (height << 12) | width);
6918
3f8bc370 6919 finish:
3f8bc370 6920 if (intel_crtc->cursor_bo) {
b295d1b6 6921 if (dev_priv->info->cursor_needs_physical) {
05394f39 6922 if (intel_crtc->cursor_bo != obj)
71acb5eb
DA		 6923 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
6924 } else
cc98b413 6925 i915_gem_object_unpin_from_display_plane(intel_crtc->cursor_bo);
05394f39 6926 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
3f8bc370 6927 }
80824003 6928
7f9872e0 6929 mutex_unlock(&dev->struct_mutex);
3f8bc370
KH		 6930
6931 intel_crtc->cursor_addr = addr;
05394f39 6932 intel_crtc->cursor_bo = obj;
cda4b7d3
CW		 6933 intel_crtc->cursor_width = width;
6934 intel_crtc->cursor_height = height;
6935
f2f5f771
VS		 6936 if (intel_crtc->active)
6937 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
3f8bc370 6938
79e53945 6939 return 0;
e7b526bb 6940fail_unpin:
cc98b413 6941 i915_gem_object_unpin_from_display_plane(obj);
7f9872e0 6942fail_locked:
34b8686e 6943 mutex_unlock(&dev->struct_mutex);
bc9025bd 6944fail:
05394f39 6945 drm_gem_object_unreference_unlocked(&obj->base);
34b8686e 6946 return ret;
79e53945
JB		 6947}
6948
6949static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
6950{
79e53945 6951 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
79e53945 6952
cda4b7d3
CW		 6953 intel_crtc->cursor_x = x;
6954 intel_crtc->cursor_y = y;
652c393a 6955
f2f5f771
VS		 6956 if (intel_crtc->active)
6957 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
79e53945
JB		 6958
6959 return 0;
6960}
6961
6962/** Sets the color ramps on behalf of RandR */
6963void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
6964 u16 blue, int regno)
6965{
6966 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6967
6968 intel_crtc->lut_r[regno] = red >> 8;
6969 intel_crtc->lut_g[regno] = green >> 8;
6970 intel_crtc->lut_b[regno] = blue >> 8;
6971}
6972
b8c00ac5
DA		 6973void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
6974 u16 *blue, int regno)
6975{
6976 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6977
6978 *red = intel_crtc->lut_r[regno] << 8;
6979 *green = intel_crtc->lut_g[regno] << 8;
6980 *blue = intel_crtc->lut_b[regno] << 8;
6981}
6982
79e53945 6983static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
7203425a 6984 u16 *blue, uint32_t start, uint32_t size)
79e53945 6985{
7203425a 6986 int end = (start + size > 256) ? 256 : start + size, i;
79e53945 6987 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
79e53945 6988
7203425a 6989 for (i = start; i < end; i++) {
79e53945
JB		 6990 intel_crtc->lut_r[i] = red[i] >> 8;
6991 intel_crtc->lut_g[i] = green[i] >> 8;
6992 intel_crtc->lut_b[i] = blue[i] >> 8;
6993 }
6994
6995 intel_crtc_load_lut(crtc);
6996}
6997
79e53945
JB		 6998/* VESA 640x480x72Hz mode to set on the pipe */
6999static struct drm_display_mode load_detect_mode = {
7000 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
7001 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
7002};
7003
d2dff872
CW		 7004static struct drm_framebuffer *
7005intel_framebuffer_create(struct drm_device *dev,
308e5bcb 7006 struct drm_mode_fb_cmd2 *mode_cmd,
d2dff872
CW		 7007 struct drm_i915_gem_object *obj)
7008{
7009 struct intel_framebuffer *intel_fb;
7010 int ret;
7011
7012 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
7013 if (!intel_fb) {
7014 drm_gem_object_unreference_unlocked(&obj->base);
7015 return ERR_PTR(-ENOMEM);
7016 }
7017
7018 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
7019 if (ret) {
7020 drm_gem_object_unreference_unlocked(&obj->base);
7021 kfree(intel_fb);
7022 return ERR_PTR(ret);
7023 }
7024
7025 return &intel_fb->base;
7026}
7027
7028static u32
7029intel_framebuffer_pitch_for_width(int width, int bpp)
7030{
7031 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
7032 return ALIGN(pitch, 64);
7033}
7034
7035static u32
7036intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
7037{
7038 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
7039 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
7040}
7041
7042static struct drm_framebuffer *
7043intel_framebuffer_create_for_mode(struct drm_device *dev,
7044 struct drm_display_mode *mode,
7045 int depth, int bpp)
7046{
7047 struct drm_i915_gem_object *obj;
0fed39bd 7048 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
d2dff872
CW		 7049
7050 obj = i915_gem_alloc_object(dev,
7051 intel_framebuffer_size_for_mode(mode, bpp));
7052 if (obj == NULL)
7053 return ERR_PTR(-ENOMEM);
7054
7055 mode_cmd.width = mode->hdisplay;
7056 mode_cmd.height = mode->vdisplay;
308e5bcb
JB		 7057 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
7058 bpp);
5ca0c34a 7059 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
d2dff872
CW		 7060
7061 return intel_framebuffer_create(dev, &mode_cmd, obj);
7062}
7063
7064static struct drm_framebuffer *
7065mode_fits_in_fbdev(struct drm_device *dev,
7066 struct drm_display_mode *mode)
7067{
7068 struct drm_i915_private *dev_priv = dev->dev_private;
7069 struct drm_i915_gem_object *obj;
7070 struct drm_framebuffer *fb;
7071
7072 if (dev_priv->fbdev == NULL)
7073 return NULL;
7074
7075 obj = dev_priv->fbdev->ifb.obj;
7076 if (obj == NULL)
7077 return NULL;
7078
7079 fb = &dev_priv->fbdev->ifb.base;
01f2c773
VS		 7080 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
7081 fb->bits_per_pixel))
d2dff872
CW		 7082 return NULL;
7083
01f2c773 7084 if (obj->base.size < mode->vdisplay * fb->pitches[0])
d2dff872
CW		 7085 return NULL;
7086
7087 return fb;
7088}
7089
d2434ab7 7090bool intel_get_load_detect_pipe(struct drm_connector *connector,
7173188d 7091 struct drm_display_mode *mode,
8261b191 7092 struct intel_load_detect_pipe *old)
79e53945
JB		 7093{
7094 struct intel_crtc *intel_crtc;
d2434ab7
DV		 7095 struct intel_encoder *intel_encoder =
7096 intel_attached_encoder(connector);
79e53945 7097 struct drm_crtc *possible_crtc;
4ef69c7a 7098 struct drm_encoder *encoder = &intel_encoder->base;
79e53945
JB		 7099 struct drm_crtc *crtc = NULL;
7100 struct drm_device *dev = encoder->dev;
94352cf9 7101 struct drm_framebuffer *fb;
79e53945
JB		 7102 int i = -1;
7103
d2dff872
CW		 7104 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7105 connector->base.id, drm_get_connector_name(connector),
7106 encoder->base.id, drm_get_encoder_name(encoder));
7107
79e53945
JB		 7108 /*
7109 * Algorithm gets a little messy:
7a5e4805 7110 *
79e53945
JB		 7111 * - if the connector already has an assigned crtc, use it (but make
7112 * sure it's on first)
7a5e4805 7113 *
79e53945
JB		 7114 * - try to find the first unused crtc that can drive this connector,
7115 * and use that if we find one
79e53945
JB		 7116 */
7117
7118 /* See if we already have a CRTC for this connector */
7119 if (encoder->crtc) {
7120 crtc = encoder->crtc;
8261b191 7121
7b24056b
DV		 7122 mutex_lock(&crtc->mutex);
7123
24218aac 7124 old->dpms_mode = connector->dpms;
8261b191
CW		 7125 old->load_detect_temp = false;
7126
7127 /* Make sure the crtc and connector are running */
24218aac
DV		 7128 if (connector->dpms != DRM_MODE_DPMS_ON)
7129 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
8261b191 7130
7173188d 7131 return true;
79e53945
JB		 7132 }
7133
7134 /* Find an unused one (if possible) */
7135 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
7136 i++;
7137 if (!(encoder->possible_crtcs & (1 << i)))
7138 continue;
7139 if (!possible_crtc->enabled) {
7140 crtc = possible_crtc;
7141 break;
7142 }
79e53945
JB		 7143 }
7144
7145 /*
7146 * If we didn't find an unused CRTC, don't use any.
7147 */
7148 if (!crtc) {
7173188d
CW		 7149 DRM_DEBUG_KMS("no pipe available for load-detect\n");
7150 return false;
79e53945
JB		 7151 }
7152
7b24056b 7153 mutex_lock(&crtc->mutex);
fc303101
DV		 7154 intel_encoder->new_crtc = to_intel_crtc(crtc);
7155 to_intel_connector(connector)->new_encoder = intel_encoder;
79e53945
JB		 7156
7157 intel_crtc = to_intel_crtc(crtc);
24218aac 7158 old->dpms_mode = connector->dpms;
8261b191 7159 old->load_detect_temp = true;
d2dff872 7160 old->release_fb = NULL;
79e53945 7161
6492711d
CW		 7162 if (!mode)
7163 mode = &load_detect_mode;
79e53945 7164
d2dff872
CW		 7165 /* We need a framebuffer large enough to accommodate all accesses
7166 * that the plane may generate whilst we perform load detection.
7167 * We can not rely on the fbcon either being present (we get called
7168 * during its initialisation to detect all boot displays, or it may
7169 * not even exist) or that it is large enough to satisfy the
7170 * requested mode.
7171 */
94352cf9
DV		 7172 fb = mode_fits_in_fbdev(dev, mode);
7173 if (fb == NULL) {
d2dff872 7174 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
94352cf9
DV		 7175 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
7176 old->release_fb = fb;
d2dff872
CW		 7177 } else
7178 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
94352cf9 7179 if (IS_ERR(fb)) {
d2dff872 7180 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
7b24056b 7181 mutex_unlock(&crtc->mutex);
0e8b3d3e 7182 return false;
79e53945 7183 }
79e53945 7184
c0c36b94 7185 if (intel_set_mode(crtc, mode, 0, 0, fb)) {
6492711d 7186 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
d2dff872
CW		 7187 if (old->release_fb)
7188 old->release_fb->funcs->destroy(old->release_fb);
7b24056b 7189 mutex_unlock(&crtc->mutex);
0e8b3d3e 7190 return false;
79e53945 7191 }
7173188d 7192
79e53945 7193 /* let the connector get through one full cycle before testing */
9d0498a2 7194 intel_wait_for_vblank(dev, intel_crtc->pipe);
7173188d 7195 return true;
79e53945
JB		 7196}
7197
d2434ab7 7198void intel_release_load_detect_pipe(struct drm_connector *connector,
8261b191 7199 struct intel_load_detect_pipe *old)
79e53945 7200{
d2434ab7
DV		 7201 struct intel_encoder *intel_encoder =
7202 intel_attached_encoder(connector);
4ef69c7a 7203 struct drm_encoder *encoder = &intel_encoder->base;
7b24056b 7204 struct drm_crtc *crtc = encoder->crtc;
79e53945 7205
d2dff872
CW		 7206 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7207 connector->base.id, drm_get_connector_name(connector),
7208 encoder->base.id, drm_get_encoder_name(encoder));
7209
8261b191 7210 if (old->load_detect_temp) {
fc303101
DV		 7211 to_intel_connector(connector)->new_encoder = NULL;
7212 intel_encoder->new_crtc = NULL;
7213 intel_set_mode(crtc, NULL, 0, 0, NULL);
d2dff872 7214
36206361
DV		 7215 if (old->release_fb) {
7216 drm_framebuffer_unregister_private(old->release_fb);
7217 drm_framebuffer_unreference(old->release_fb);
7218 }
d2dff872 7219
67c96400 7220 mutex_unlock(&crtc->mutex);
0622a53c 7221 return;
79e53945
JB		 7222 }
7223
c751ce4f 7224 /* Switch crtc and encoder back off if necessary */
24218aac
DV		 7225 if (old->dpms_mode != DRM_MODE_DPMS_ON)
7226 connector->funcs->dpms(connector, old->dpms_mode);
7b24056b
DV		 7227
7228 mutex_unlock(&crtc->mutex);
79e53945
JB		 7229}
7230
7231/* Returns the clock of the currently programmed mode of the given pipe. */
f1f644dc
JB		 7232static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
7233 struct intel_crtc_config *pipe_config)
79e53945 7234{
f1f644dc 7235 struct drm_device *dev = crtc->base.dev;
79e53945 7236 struct drm_i915_private *dev_priv = dev->dev_private;
f1f644dc 7237 int pipe = pipe_config->cpu_transcoder;
548f245b 7238 u32 dpll = I915_READ(DPLL(pipe));
79e53945
JB		 7239 u32 fp;
7240 intel_clock_t clock;
7241
7242 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
39adb7a5 7243 fp = I915_READ(FP0(pipe));
79e53945 7244 else
39adb7a5 7245 fp = I915_READ(FP1(pipe));
79e53945
JB		 7246
7247 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
f2b115e6
AJ		 7248 if (IS_PINEVIEW(dev)) {
7249 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
7250 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
2177832f
SL		 7251 } else {
7252 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
7253 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
7254 }
7255
a6c45cf0 7256 if (!IS_GEN2(dev)) {
f2b115e6
AJ		 7257 if (IS_PINEVIEW(dev))
7258 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
7259 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
2177832f
SL		 7260 else
7261 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
79e53945
JB		 7262 DPLL_FPA01_P1_POST_DIV_SHIFT);
7263
7264 switch (dpll & DPLL_MODE_MASK) {
7265 case DPLLB_MODE_DAC_SERIAL:
7266 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
7267 5 : 10;
7268 break;
7269 case DPLLB_MODE_LVDS:
7270 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
7271 7 : 14;
7272 break;
7273 default:
28c97730 7274 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
79e53945 7275 "mode\n", (int)(dpll & DPLL_MODE_MASK));
f1f644dc
JB		 7276 pipe_config->adjusted_mode.clock = 0;
7277 return;
79e53945
JB		 7278 }
7279
ac58c3f0
DV		 7280 if (IS_PINEVIEW(dev))
7281 pineview_clock(96000, &clock);
7282 else
7283 i9xx_clock(96000, &clock);
79e53945
JB		 7284 } else {
7285 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
7286
7287 if (is_lvds) {
7288 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
7289 DPLL_FPA01_P1_POST_DIV_SHIFT);
7290 clock.p2 = 14;
7291
7292 if ((dpll & PLL_REF_INPUT_MASK) ==
7293 PLLB_REF_INPUT_SPREADSPECTRUMIN) {
7294 /* XXX: might not be 66MHz */
ac58c3f0 7295 i9xx_clock(66000, &clock);
79e53945 7296 } else
ac58c3f0 7297 i9xx_clock(48000, &clock);
79e53945
JB		 7298 } else {
7299 if (dpll & PLL_P1_DIVIDE_BY_TWO)
7300 clock.p1 = 2;
7301 else {
7302 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
7303 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
7304 }
7305 if (dpll & PLL_P2_DIVIDE_BY_4)
7306 clock.p2 = 4;
7307 else
7308 clock.p2 = 2;
7309
ac58c3f0 7310 i9xx_clock(48000, &clock);
79e53945
JB		 7311 }
7312 }
7313
a2dc53e7 7314 pipe_config->adjusted_mode.clock = clock.dot;
f1f644dc
JB		 7315}
7316
7317static void ironlake_crtc_clock_get(struct intel_crtc *crtc,
7318 struct intel_crtc_config *pipe_config)
7319{
7320 struct drm_device *dev = crtc->base.dev;
7321 struct drm_i915_private *dev_priv = dev->dev_private;
7322 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
7323 int link_freq, repeat;
7324 u64 clock;
7325 u32 link_m, link_n;
7326
7327 repeat = pipe_config->pixel_multiplier;
7328
7329 /*
7330 * The calculation for the data clock is:
7331 * pixel_clock = ((m/n)*(link_clock * nr_lanes * repeat))/bpp
7332 * But we want to avoid losing precison if possible, so:
7333 * pixel_clock = ((m * link_clock * nr_lanes * repeat)/(n*bpp))
7334 *
7335 * and the link clock is simpler:
7336 * link_clock = (m * link_clock * repeat) / n
7337 */
7338
7339 /*
7340 * We need to get the FDI or DP link clock here to derive
7341 * the M/N dividers.
7342 *
7343 * For FDI, we read it from the BIOS or use a fixed 2.7GHz.
7344 * For DP, it's either 1.62GHz or 2.7GHz.
7345 * We do our calculations in 10*MHz since we don't need much precison.
79e53945 7346 */
f1f644dc
JB		 7347 if (pipe_config->has_pch_encoder)
7348 link_freq = intel_fdi_link_freq(dev) * 10000;
7349 else
7350 link_freq = pipe_config->port_clock;
7351
7352 link_m = I915_READ(PIPE_LINK_M1(cpu_transcoder));
7353 link_n = I915_READ(PIPE_LINK_N1(cpu_transcoder));
7354
7355 if (!link_m || !link_n)
7356 return;
79e53945 7357
f1f644dc
JB		 7358 clock = ((u64)link_m * (u64)link_freq * (u64)repeat);
7359 do_div(clock, link_n);
7360
7361 pipe_config->adjusted_mode.clock = clock;
79e53945
JB		 7362}
7363
7364/** Returns the currently programmed mode of the given pipe. */
7365struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
7366 struct drm_crtc *crtc)
7367{
548f245b 7368 struct drm_i915_private *dev_priv = dev->dev_private;
79e53945 7369 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 7370 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
79e53945 7371 struct drm_display_mode *mode;
f1f644dc 7372 struct intel_crtc_config pipe_config;
fe2b8f9d
PZ		 7373 int htot = I915_READ(HTOTAL(cpu_transcoder));
7374 int hsync = I915_READ(HSYNC(cpu_transcoder));
7375 int vtot = I915_READ(VTOTAL(cpu_transcoder));
7376 int vsync = I915_READ(VSYNC(cpu_transcoder));
79e53945
JB		 7377
7378 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
7379 if (!mode)
7380 return NULL;
7381
f1f644dc
JB		 7382 /*
7383 * Construct a pipe_config sufficient for getting the clock info
7384 * back out of crtc_clock_get.
7385 *
7386 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
7387 * to use a real value here instead.
7388 */
e143a21c 7389 pipe_config.cpu_transcoder = (enum transcoder) intel_crtc->pipe;
f1f644dc
JB		 7390 pipe_config.pixel_multiplier = 1;
7391 i9xx_crtc_clock_get(intel_crtc, &pipe_config);
7392
7393 mode->clock = pipe_config.adjusted_mode.clock;
79e53945
JB		 7394 mode->hdisplay = (htot & 0xffff) + 1;
7395 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
7396 mode->hsync_start = (hsync & 0xffff) + 1;
7397 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
7398 mode->vdisplay = (vtot & 0xffff) + 1;
7399 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
7400 mode->vsync_start = (vsync & 0xffff) + 1;
7401 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
7402
7403 drm_mode_set_name(mode);
79e53945
JB		 7404
7405 return mode;
7406}
7407
3dec0095 7408static void intel_increase_pllclock(struct drm_crtc *crtc)
652c393a
JB		 7409{
7410 struct drm_device *dev = crtc->dev;
7411 drm_i915_private_t *dev_priv = dev->dev_private;
7412 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7413 int pipe = intel_crtc->pipe;
dbdc6479
JB		 7414 int dpll_reg = DPLL(pipe);
7415 int dpll;
652c393a 7416
bad720ff 7417 if (HAS_PCH_SPLIT(dev))
652c393a
JB		 7418 return;
7419
7420 if (!dev_priv->lvds_downclock_avail)
7421 return;
7422
dbdc6479 7423 dpll = I915_READ(dpll_reg);
652c393a 7424 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
44d98a61 7425 DRM_DEBUG_DRIVER("upclocking LVDS\n");
652c393a 7426
8ac5a6d5 7427 assert_panel_unlocked(dev_priv, pipe);
652c393a
JB		 7428
7429 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
7430 I915_WRITE(dpll_reg, dpll);
9d0498a2 7431 intel_wait_for_vblank(dev, pipe);
dbdc6479 7432
652c393a
JB		 7433 dpll = I915_READ(dpll_reg);
7434 if (dpll & DISPLAY_RATE_SELECT_FPA1)
44d98a61 7435 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
652c393a 7436 }
652c393a
JB		 7437}
7438
7439static void intel_decrease_pllclock(struct drm_crtc *crtc)
7440{
7441 struct drm_device *dev = crtc->dev;
7442 drm_i915_private_t *dev_priv = dev->dev_private;
7443 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
652c393a 7444
bad720ff 7445 if (HAS_PCH_SPLIT(dev))
652c393a
JB		 7446 return;
7447
7448 if (!dev_priv->lvds_downclock_avail)
7449 return;
7450
7451 /*
7452 * Since this is called by a timer, we should never get here in
7453 * the manual case.
7454 */
7455 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
dc257cf1
DV		 7456 int pipe = intel_crtc->pipe;
7457 int dpll_reg = DPLL(pipe);
7458 int dpll;
f6e5b160 7459
44d98a61 7460 DRM_DEBUG_DRIVER("downclocking LVDS\n");
652c393a 7461
8ac5a6d5 7462 assert_panel_unlocked(dev_priv, pipe);
652c393a 7463
dc257cf1 7464 dpll = I915_READ(dpll_reg);
652c393a
JB		 7465 dpll |= DISPLAY_RATE_SELECT_FPA1;
7466 I915_WRITE(dpll_reg, dpll);
9d0498a2 7467 intel_wait_for_vblank(dev, pipe);
652c393a
JB		 7468 dpll = I915_READ(dpll_reg);
7469 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
44d98a61 7470 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
652c393a
JB		 7471 }
7472
7473}
7474
f047e395
CW		 7475void intel_mark_busy(struct drm_device *dev)
7476{
c67a470b
PZ		 7477 struct drm_i915_private *dev_priv = dev->dev_private;
7478
7479 hsw_package_c8_gpu_busy(dev_priv);
7480 i915_update_gfx_val(dev_priv);
f047e395
CW		 7481}
7482
7483void intel_mark_idle(struct drm_device *dev)
652c393a 7484{
c67a470b 7485 struct drm_i915_private *dev_priv = dev->dev_private;
652c393a 7486 struct drm_crtc *crtc;
652c393a 7487
c67a470b
PZ		 7488 hsw_package_c8_gpu_idle(dev_priv);
7489
652c393a
JB		 7490 if (!i915_powersave)
7491 return;
7492
652c393a 7493 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
652c393a
JB		 7494 if (!crtc->fb)
7495 continue;
7496
725a5b54 7497 intel_decrease_pllclock(crtc);
652c393a 7498 }
652c393a
JB		 7499}
7500
c65355bb
CW		 7501void intel_mark_fb_busy(struct drm_i915_gem_object *obj,
7502 struct intel_ring_buffer *ring)
652c393a 7503{
f047e395
CW		 7504 struct drm_device *dev = obj->base.dev;
7505 struct drm_crtc *crtc;
652c393a 7506
f047e395 7507 if (!i915_powersave)
acb87dfb
CW		 7508 return;
7509
652c393a
JB		 7510 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7511 if (!crtc->fb)
7512 continue;
7513
c65355bb
CW		 7514 if (to_intel_framebuffer(crtc->fb)->obj != obj)
7515 continue;
7516
7517 intel_increase_pllclock(crtc);
7518 if (ring && intel_fbc_enabled(dev))
7519 ring->fbc_dirty = true;
652c393a
JB		 7520 }
7521}
7522
79e53945
JB		 7523static void intel_crtc_destroy(struct drm_crtc *crtc)
7524{
7525 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
67e77c5a
DV		 7526 struct drm_device *dev = crtc->dev;
7527 struct intel_unpin_work *work;
7528 unsigned long flags;
7529
7530 spin_lock_irqsave(&dev->event_lock, flags);
7531 work = intel_crtc->unpin_work;
7532 intel_crtc->unpin_work = NULL;
7533 spin_unlock_irqrestore(&dev->event_lock, flags);
7534
7535 if (work) {
7536 cancel_work_sync(&work->work);
7537 kfree(work);
7538 }
79e53945 7539
40ccc72b
MK		 7540 intel_crtc_cursor_set(crtc, NULL, 0, 0, 0);
7541
79e53945 7542 drm_crtc_cleanup(crtc);
67e77c5a 7543
79e53945
JB		 7544 kfree(intel_crtc);
7545}
7546
6b95a207
KH		 7547static void intel_unpin_work_fn(struct work_struct *__work)
7548{
7549 struct intel_unpin_work *work =
7550 container_of(__work, struct intel_unpin_work, work);
b4a98e57 7551 struct drm_device *dev = work->crtc->dev;
6b95a207 7552
b4a98e57 7553 mutex_lock(&dev->struct_mutex);
1690e1eb 7554 intel_unpin_fb_obj(work->old_fb_obj);
05394f39
CW		 7555 drm_gem_object_unreference(&work->pending_flip_obj->base);
7556 drm_gem_object_unreference(&work->old_fb_obj->base);
d9e86c0e 7557
b4a98e57
CW		 7558 intel_update_fbc(dev);
7559 mutex_unlock(&dev->struct_mutex);
7560
7561 BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
7562 atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
7563
6b95a207
KH		 7564 kfree(work);
7565}
7566
1afe3e9d 7567static void do_intel_finish_page_flip(struct drm_device *dev,
49b14a5c 7568 struct drm_crtc *crtc)
6b95a207
KH		 7569{
7570 drm_i915_private_t *dev_priv = dev->dev_private;
6b95a207
KH		 7571 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7572 struct intel_unpin_work *work;
6b95a207
KH		 7573 unsigned long flags;
7574
7575 /* Ignore early vblank irqs */
7576 if (intel_crtc == NULL)
7577 return;
7578
7579 spin_lock_irqsave(&dev->event_lock, flags);
7580 work = intel_crtc->unpin_work;
e7d841ca
CW		 7581
7582 /* Ensure we don't miss a work->pending update ... */
7583 smp_rmb();
7584
7585 if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
6b95a207
KH		 7586 spin_unlock_irqrestore(&dev->event_lock, flags);
7587 return;
7588 }
7589
e7d841ca
CW		 7590 /* and that the unpin work is consistent wrt ->pending. */
7591 smp_rmb();
7592
6b95a207 7593 intel_crtc->unpin_work = NULL;
6b95a207 7594
45a066eb
RC		 7595 if (work->event)
7596 drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
6b95a207 7597
0af7e4df
MK		 7598 drm_vblank_put(dev, intel_crtc->pipe);
7599
6b95a207
KH		 7600 spin_unlock_irqrestore(&dev->event_lock, flags);
7601
2c10d571 7602 wake_up_all(&dev_priv->pending_flip_queue);
b4a98e57
CW		 7603
7604 queue_work(dev_priv->wq, &work->work);
e5510fac
JB		 7605
7606 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
6b95a207
KH		 7607}
7608
1afe3e9d
JB		 7609void intel_finish_page_flip(struct drm_device *dev, int pipe)
7610{
7611 drm_i915_private_t *dev_priv = dev->dev_private;
7612 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
7613
49b14a5c 7614 do_intel_finish_page_flip(dev, crtc);
1afe3e9d
JB		 7615}
7616
7617void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
7618{
7619 drm_i915_private_t *dev_priv = dev->dev_private;
7620 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
7621
49b14a5c 7622 do_intel_finish_page_flip(dev, crtc);
1afe3e9d
JB		 7623}
7624
6b95a207
KH		 7625void intel_prepare_page_flip(struct drm_device *dev, int plane)
7626{
7627 drm_i915_private_t *dev_priv = dev->dev_private;
7628 struct intel_crtc *intel_crtc =
7629 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
7630 unsigned long flags;
7631
e7d841ca
CW		 7632 /* NB: An MMIO update of the plane base pointer will also
7633 * generate a page-flip completion irq, i.e. every modeset
7634 * is also accompanied by a spurious intel_prepare_page_flip().
7635 */
6b95a207 7636 spin_lock_irqsave(&dev->event_lock, flags);
e7d841ca
CW		 7637 if (intel_crtc->unpin_work)
7638 atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
6b95a207
KH		 7639 spin_unlock_irqrestore(&dev->event_lock, flags);
7640}
7641
e7d841ca
CW		 7642inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
7643{
7644 /* Ensure that the work item is consistent when activating it ... */
7645 smp_wmb();
7646 atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
7647 /* and that it is marked active as soon as the irq could fire. */
7648 smp_wmb();
7649}
7650
8c9f3aaf
JB		 7651static int intel_gen2_queue_flip(struct drm_device *dev,
7652 struct drm_crtc *crtc,
7653 struct drm_framebuffer *fb,
ed8d1975
KP		 7654 struct drm_i915_gem_object *obj,
7655 uint32_t flags)
8c9f3aaf
JB		 7656{
7657 struct drm_i915_private *dev_priv = dev->dev_private;
7658 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8c9f3aaf 7659 u32 flip_mask;
6d90c952 7660 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7661 int ret;
7662
6d90c952 7663 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7664 if (ret)
83d4092b 7665 goto err;
8c9f3aaf 7666
6d90c952 7667 ret = intel_ring_begin(ring, 6);
8c9f3aaf 7668 if (ret)
83d4092b 7669 goto err_unpin;
8c9f3aaf
JB		 7670
7671 /* Can't queue multiple flips, so wait for the previous
7672 * one to finish before executing the next.
7673 */
7674 if (intel_crtc->plane)
7675 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7676 else
7677 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
6d90c952
DV		 7678 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7679 intel_ring_emit(ring, MI_NOOP);
7680 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7681 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7682 intel_ring_emit(ring, fb->pitches[0]);
f343c5f6 7683 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
6d90c952 7684 intel_ring_emit(ring, 0); /* aux display base address, unused */
e7d841ca
CW		 7685
7686 intel_mark_page_flip_active(intel_crtc);
6d90c952 7687 intel_ring_advance(ring);
83d4092b
CW		 7688 return 0;
7689
7690err_unpin:
7691 intel_unpin_fb_obj(obj);
7692err:
8c9f3aaf
JB		 7693 return ret;
7694}
7695
7696static int intel_gen3_queue_flip(struct drm_device *dev,
7697 struct drm_crtc *crtc,
7698 struct drm_framebuffer *fb,
ed8d1975
KP		 7699 struct drm_i915_gem_object *obj,
7700 uint32_t flags)
8c9f3aaf
JB		 7701{
7702 struct drm_i915_private *dev_priv = dev->dev_private;
7703 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8c9f3aaf 7704 u32 flip_mask;
6d90c952 7705 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7706 int ret;
7707
6d90c952 7708 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7709 if (ret)
83d4092b 7710 goto err;
8c9f3aaf 7711
6d90c952 7712 ret = intel_ring_begin(ring, 6);
8c9f3aaf 7713 if (ret)
83d4092b 7714 goto err_unpin;
8c9f3aaf
JB		 7715
7716 if (intel_crtc->plane)
7717 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7718 else
7719 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
6d90c952
DV		 7720 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7721 intel_ring_emit(ring, MI_NOOP);
7722 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
7723 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7724 intel_ring_emit(ring, fb->pitches[0]);
f343c5f6 7725 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
6d90c952
DV		 7726 intel_ring_emit(ring, MI_NOOP);
7727
e7d841ca 7728 intel_mark_page_flip_active(intel_crtc);
6d90c952 7729 intel_ring_advance(ring);
83d4092b
CW		 7730 return 0;
7731
7732err_unpin:
7733 intel_unpin_fb_obj(obj);
7734err:
8c9f3aaf
JB		 7735 return ret;
7736}
7737
7738static int intel_gen4_queue_flip(struct drm_device *dev,
7739 struct drm_crtc *crtc,
7740 struct drm_framebuffer *fb,
ed8d1975
KP		 7741 struct drm_i915_gem_object *obj,
7742 uint32_t flags)
8c9f3aaf
JB		 7743{
7744 struct drm_i915_private *dev_priv = dev->dev_private;
7745 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7746 uint32_t pf, pipesrc;
6d90c952 7747 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7748 int ret;
7749
6d90c952 7750 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7751 if (ret)
83d4092b 7752 goto err;
8c9f3aaf 7753
6d90c952 7754 ret = intel_ring_begin(ring, 4);
8c9f3aaf 7755 if (ret)
83d4092b 7756 goto err_unpin;
8c9f3aaf
JB		 7757
7758 /* i965+ uses the linear or tiled offsets from the
7759 * Display Registers (which do not change across a page-flip)
7760 * so we need only reprogram the base address.
7761 */
6d90c952
DV		 7762 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7763 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7764 intel_ring_emit(ring, fb->pitches[0]);
c2c75131 7765 intel_ring_emit(ring,
f343c5f6 7766 (i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset) |
c2c75131 7767 obj->tiling_mode);
8c9f3aaf
JB		 7768
7769 /* XXX Enabling the panel-fitter across page-flip is so far
7770 * untested on non-native modes, so ignore it for now.
7771 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
7772 */
7773 pf = 0;
7774 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
6d90c952 7775 intel_ring_emit(ring, pf | pipesrc);
e7d841ca
CW		 7776
7777 intel_mark_page_flip_active(intel_crtc);
6d90c952 7778 intel_ring_advance(ring);
83d4092b
CW		 7779 return 0;
7780
7781err_unpin:
7782 intel_unpin_fb_obj(obj);
7783err:
8c9f3aaf
JB		 7784 return ret;
7785}
7786
7787static int intel_gen6_queue_flip(struct drm_device *dev,
7788 struct drm_crtc *crtc,
7789 struct drm_framebuffer *fb,
ed8d1975
KP		 7790 struct drm_i915_gem_object *obj,
7791 uint32_t flags)
8c9f3aaf
JB		 7792{
7793 struct drm_i915_private *dev_priv = dev->dev_private;
7794 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6d90c952 7795 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7796 uint32_t pf, pipesrc;
7797 int ret;
7798
6d90c952 7799 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7800 if (ret)
83d4092b 7801 goto err;
8c9f3aaf 7802
6d90c952 7803 ret = intel_ring_begin(ring, 4);
8c9f3aaf 7804 if (ret)
83d4092b 7805 goto err_unpin;
8c9f3aaf 7806
6d90c952
DV		 7807 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7808 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7809 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
f343c5f6 7810 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8c9f3aaf 7811
dc257cf1
DV		 7812 /* Contrary to the suggestions in the documentation,
7813 * "Enable Panel Fitter" does not seem to be required when page
7814 * flipping with a non-native mode, and worse causes a normal
7815 * modeset to fail.
7816 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
7817 */
7818 pf = 0;
8c9f3aaf 7819 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
6d90c952 7820 intel_ring_emit(ring, pf | pipesrc);
e7d841ca
CW		 7821
7822 intel_mark_page_flip_active(intel_crtc);
6d90c952 7823 intel_ring_advance(ring);
83d4092b
CW		 7824 return 0;
7825
7826err_unpin:
7827 intel_unpin_fb_obj(obj);
7828err:
8c9f3aaf
JB		 7829 return ret;
7830}
7831
7c9017e5
JB		 7832static int intel_gen7_queue_flip(struct drm_device *dev,
7833 struct drm_crtc *crtc,
7834 struct drm_framebuffer *fb,
ed8d1975
KP		 7835 struct drm_i915_gem_object *obj,
7836 uint32_t flags)
7c9017e5
JB		 7837{
7838 struct drm_i915_private *dev_priv = dev->dev_private;
7839 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ffe74d75 7840 struct intel_ring_buffer *ring;
cb05d8de 7841 uint32_t plane_bit = 0;
ffe74d75
CW		 7842 int len, ret;
7843
7844 ring = obj->ring;
1c5fd085 7845 if (IS_VALLEYVIEW(dev) || ring == NULL || ring->id != RCS)
ffe74d75 7846 ring = &dev_priv->ring[BCS];
7c9017e5
JB		 7847
7848 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7849 if (ret)
83d4092b 7850 goto err;
7c9017e5 7851
cb05d8de
DV		 7852 switch(intel_crtc->plane) {
7853 case PLANE_A:
7854 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
7855 break;
7856 case PLANE_B:
7857 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
7858 break;
7859 case PLANE_C:
7860 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
7861 break;
7862 default:
7863 WARN_ONCE(1, "unknown plane in flip command\n");
7864 ret = -ENODEV;
ab3951eb 7865 goto err_unpin;
cb05d8de
DV		 7866 }
7867
ffe74d75
CW		 7868 len = 4;
7869 if (ring->id == RCS)
7870 len += 6;
7871
7872 ret = intel_ring_begin(ring, len);
7c9017e5 7873 if (ret)
83d4092b 7874 goto err_unpin;
7c9017e5 7875
ffe74d75
CW		 7876 /* Unmask the flip-done completion message. Note that the bspec says that
7877 * we should do this for both the BCS and RCS, and that we must not unmask
7878 * more than one flip event at any time (or ensure that one flip message
7879 * can be sent by waiting for flip-done prior to queueing new flips).
7880 * Experimentation says that BCS works despite DERRMR masking all
7881 * flip-done completion events and that unmasking all planes at once
7882 * for the RCS also doesn't appear to drop events. Setting the DERRMR
7883 * to zero does lead to lockups within MI_DISPLAY_FLIP.
7884 */
7885 if (ring->id == RCS) {
7886 intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
7887 intel_ring_emit(ring, DERRMR);
7888 intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE |
7889 DERRMR_PIPEB_PRI_FLIP_DONE |
7890 DERRMR_PIPEC_PRI_FLIP_DONE));
7891 intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1));
7892 intel_ring_emit(ring, DERRMR);
7893 intel_ring_emit(ring, ring->scratch.gtt_offset + 256);
7894 }
7895
cb05d8de 7896 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
01f2c773 7897 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
f343c5f6 7898 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
7c9017e5 7899 intel_ring_emit(ring, (MI_NOOP));
e7d841ca
CW		 7900
7901 intel_mark_page_flip_active(intel_crtc);
7c9017e5 7902 intel_ring_advance(ring);
83d4092b
CW		 7903 return 0;
7904
7905err_unpin:
7906 intel_unpin_fb_obj(obj);
7907err:
7c9017e5
JB		 7908 return ret;
7909}
7910
8c9f3aaf
JB		 7911static int intel_default_queue_flip(struct drm_device *dev,
7912 struct drm_crtc *crtc,
7913 struct drm_framebuffer *fb,
ed8d1975
KP		 7914 struct drm_i915_gem_object *obj,
7915 uint32_t flags)
8c9f3aaf
JB		 7916{
7917 return -ENODEV;
7918}
7919
6b95a207
KH		 7920static int intel_crtc_page_flip(struct drm_crtc *crtc,
7921 struct drm_framebuffer *fb,
ed8d1975
KP		 7922 struct drm_pending_vblank_event *event,
7923 uint32_t page_flip_flags)
6b95a207
KH		 7924{
7925 struct drm_device *dev = crtc->dev;
7926 struct drm_i915_private *dev_priv = dev->dev_private;
4a35f83b
VS		 7927 struct drm_framebuffer *old_fb = crtc->fb;
7928 struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
6b95a207
KH		 7929 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7930 struct intel_unpin_work *work;
8c9f3aaf 7931 unsigned long flags;
52e68630 7932 int ret;
6b95a207 7933
e6a595d2
VS		 7934 /* Can't change pixel format via MI display flips. */
7935 if (fb->pixel_format != crtc->fb->pixel_format)
7936 return -EINVAL;
7937
7938 /*
7939 * TILEOFF/LINOFF registers can't be changed via MI display flips.
7940 * Note that pitch changes could also affect these register.
7941 */
7942 if (INTEL_INFO(dev)->gen > 3 &&
7943 (fb->offsets[0] != crtc->fb->offsets[0] ||
7944 fb->pitches[0] != crtc->fb->pitches[0]))
7945 return -EINVAL;
7946
6b95a207
KH		 7947 work = kzalloc(sizeof *work, GFP_KERNEL);
7948 if (work == NULL)
7949 return -ENOMEM;
7950
6b95a207 7951 work->event = event;
b4a98e57 7952 work->crtc = crtc;
4a35f83b 7953 work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
6b95a207
KH		 7954 INIT_WORK(&work->work, intel_unpin_work_fn);
7955
7317c75e
JB		 7956 ret = drm_vblank_get(dev, intel_crtc->pipe);
7957 if (ret)
7958 goto free_work;
7959
6b95a207
KH		 7960 /* We borrow the event spin lock for protecting unpin_work */
7961 spin_lock_irqsave(&dev->event_lock, flags);
7962 if (intel_crtc->unpin_work) {
7963 spin_unlock_irqrestore(&dev->event_lock, flags);
7964 kfree(work);
7317c75e 7965 drm_vblank_put(dev, intel_crtc->pipe);
468f0b44
CW		 7966
7967 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
6b95a207
KH		 7968 return -EBUSY;
7969 }
7970 intel_crtc->unpin_work = work;
7971 spin_unlock_irqrestore(&dev->event_lock, flags);
7972
b4a98e57
CW		 7973 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
7974 flush_workqueue(dev_priv->wq);
7975
79158103
CW		 7976 ret = i915_mutex_lock_interruptible(dev);
7977 if (ret)
7978 goto cleanup;
6b95a207 7979
75dfca80 7980 /* Reference the objects for the scheduled work. */
05394f39
CW		 7981 drm_gem_object_reference(&work->old_fb_obj->base);
7982 drm_gem_object_reference(&obj->base);
6b95a207
KH		 7983
7984 crtc->fb = fb;
96b099fd 7985
e1f99ce6 7986 work->pending_flip_obj = obj;
e1f99ce6 7987
4e5359cd
SF		 7988 work->enable_stall_check = true;
7989
b4a98e57 7990 atomic_inc(&intel_crtc->unpin_work_count);
10d83730 7991 intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
e1f99ce6 7992
ed8d1975 7993 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, page_flip_flags);
8c9f3aaf
JB		 7994 if (ret)
7995 goto cleanup_pending;
6b95a207 7996
7782de3b 7997 intel_disable_fbc(dev);
c65355bb 7998 intel_mark_fb_busy(obj, NULL);
6b95a207
KH		 7999 mutex_unlock(&dev->struct_mutex);
8000
e5510fac
JB		 8001 trace_i915_flip_request(intel_crtc->plane, obj);
8002
6b95a207 8003 return 0;
96b099fd 8004
8c9f3aaf 8005cleanup_pending:
b4a98e57 8006 atomic_dec(&intel_crtc->unpin_work_count);
4a35f83b 8007 crtc->fb = old_fb;
05394f39
CW		 8008 drm_gem_object_unreference(&work->old_fb_obj->base);
8009 drm_gem_object_unreference(&obj->base);
96b099fd
CW		 8010 mutex_unlock(&dev->struct_mutex);
8011
79158103 8012cleanup:
96b099fd
CW		 8013 spin_lock_irqsave(&dev->event_lock, flags);
8014 intel_crtc->unpin_work = NULL;
8015 spin_unlock_irqrestore(&dev->event_lock, flags);
8016
7317c75e
JB		 8017 drm_vblank_put(dev, intel_crtc->pipe);
8018free_work:
96b099fd
CW		 8019 kfree(work);
8020
8021 return ret;
6b95a207
KH		 8022}
8023
f6e5b160 8024static struct drm_crtc_helper_funcs intel_helper_funcs = {
f6e5b160
CW		 8025 .mode_set_base_atomic = intel_pipe_set_base_atomic,
8026 .load_lut = intel_crtc_load_lut,
f6e5b160
CW		 8027};
8028
50f56119
DV		 8029static bool intel_encoder_crtc_ok(struct drm_encoder *encoder,
8030 struct drm_crtc *crtc)
8031{
8032 struct drm_device *dev;
8033 struct drm_crtc *tmp;
8034 int crtc_mask = 1;
47f1c6c9 8035
50f56119 8036 WARN(!crtc, "checking null crtc?\n");
47f1c6c9 8037
50f56119 8038 dev = crtc->dev;
47f1c6c9 8039
50f56119
DV		 8040 list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
8041 if (tmp == crtc)
8042 break;
8043 crtc_mask <<= 1;
8044 }
47f1c6c9 8045
50f56119
DV		 8046 if (encoder->possible_crtcs & crtc_mask)
8047 return true;
8048 return false;
47f1c6c9 8049}
79e53945 8050
9a935856
DV		 8051/**
8052 * intel_modeset_update_staged_output_state
8053 *
8054 * Updates the staged output configuration state, e.g. after we've read out the
8055 * current hw state.
8056 */
8057static void intel_modeset_update_staged_output_state(struct drm_device *dev)
f6e5b160 8058{
9a935856
DV		 8059 struct intel_encoder *encoder;
8060 struct intel_connector *connector;
f6e5b160 8061
9a935856
DV		 8062 list_for_each_entry(connector, &dev->mode_config.connector_list,
8063 base.head) {
8064 connector->new_encoder =
8065 to_intel_encoder(connector->base.encoder);
8066 }
f6e5b160 8067
9a935856
DV		 8068 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8069 base.head) {
8070 encoder->new_crtc =
8071 to_intel_crtc(encoder->base.crtc);
8072 }
f6e5b160
CW		 8073}
8074
9a935856
DV		 8075/**
8076 * intel_modeset_commit_output_state
8077 *
8078 * This function copies the stage display pipe configuration to the real one.
8079 */
8080static void intel_modeset_commit_output_state(struct drm_device *dev)
8081{
8082 struct intel_encoder *encoder;
8083 struct intel_connector *connector;
f6e5b160 8084
9a935856
DV		 8085 list_for_each_entry(connector, &dev->mode_config.connector_list,
8086 base.head) {
8087 connector->base.encoder = &connector->new_encoder->base;
8088 }
f6e5b160 8089
9a935856
DV		 8090 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8091 base.head) {
8092 encoder->base.crtc = &encoder->new_crtc->base;
8093 }
8094}
8095
050f7aeb
DV		 8096static void
8097connected_sink_compute_bpp(struct intel_connector * connector,
8098 struct intel_crtc_config *pipe_config)
8099{
8100 int bpp = pipe_config->pipe_bpp;
8101
8102 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
8103 connector->base.base.id,
8104 drm_get_connector_name(&connector->base));
8105
8106 /* Don't use an invalid EDID bpc value */
8107 if (connector->base.display_info.bpc &&
8108 connector->base.display_info.bpc * 3 < bpp) {
8109 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
8110 bpp, connector->base.display_info.bpc*3);
8111 pipe_config->pipe_bpp = connector->base.display_info.bpc*3;
8112 }
8113
8114 /* Clamp bpp to 8 on screens without EDID 1.4 */
8115 if (connector->base.display_info.bpc == 0 && bpp > 24) {
8116 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
8117 bpp);
8118 pipe_config->pipe_bpp = 24;
8119 }
8120}
8121
4e53c2e0 8122static int
050f7aeb
DV		 8123compute_baseline_pipe_bpp(struct intel_crtc *crtc,
8124 struct drm_framebuffer *fb,
8125 struct intel_crtc_config *pipe_config)
4e53c2e0 8126{
050f7aeb
DV		 8127 struct drm_device *dev = crtc->base.dev;
8128 struct intel_connector *connector;
4e53c2e0
DV		 8129 int bpp;
8130
d42264b1
DV		 8131 switch (fb->pixel_format) {
8132 case DRM_FORMAT_C8:
4e53c2e0
DV		 8133 bpp = 8*3; /* since we go through a colormap */
8134 break;
d42264b1
DV		 8135 case DRM_FORMAT_XRGB1555:
8136 case DRM_FORMAT_ARGB1555:
8137 /* checked in intel_framebuffer_init already */
8138 if (WARN_ON(INTEL_INFO(dev)->gen > 3))
8139 return -EINVAL;
8140 case DRM_FORMAT_RGB565:
4e53c2e0
DV		 8141 bpp = 6*3; /* min is 18bpp */
8142 break;
d42264b1
DV		 8143 case DRM_FORMAT_XBGR8888:
8144 case DRM_FORMAT_ABGR8888:
8145 /* checked in intel_framebuffer_init already */
8146 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
8147 return -EINVAL;
8148 case DRM_FORMAT_XRGB8888:
8149 case DRM_FORMAT_ARGB8888:
4e53c2e0
DV		 8150 bpp = 8*3;
8151 break;
d42264b1
DV		 8152 case DRM_FORMAT_XRGB2101010:
8153 case DRM_FORMAT_ARGB2101010:
8154 case DRM_FORMAT_XBGR2101010:
8155 case DRM_FORMAT_ABGR2101010:
8156 /* checked in intel_framebuffer_init already */
8157 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
baba133a 8158 return -EINVAL;
4e53c2e0
DV		 8159 bpp = 10*3;
8160 break;
baba133a 8161 /* TODO: gen4+ supports 16 bpc floating point, too. */
4e53c2e0
DV		 8162 default:
8163 DRM_DEBUG_KMS("unsupported depth\n");
8164 return -EINVAL;
8165 }
8166
4e53c2e0
DV		 8167 pipe_config->pipe_bpp = bpp;
8168
8169 /* Clamp display bpp to EDID value */
8170 list_for_each_entry(connector, &dev->mode_config.connector_list,
050f7aeb 8171 base.head) {
1b829e05
DV		 8172 if (!connector->new_encoder ||
8173 connector->new_encoder->new_crtc != crtc)
4e53c2e0
DV		 8174 continue;
8175
050f7aeb 8176 connected_sink_compute_bpp(connector, pipe_config);
4e53c2e0
DV		 8177 }
8178
8179 return bpp;
8180}
8181
c0b03411
DV		 8182static void intel_dump_pipe_config(struct intel_crtc *crtc,
8183 struct intel_crtc_config *pipe_config,
8184 const char *context)
8185{
8186 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id,
8187 context, pipe_name(crtc->pipe));
8188
8189 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder));
8190 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
8191 pipe_config->pipe_bpp, pipe_config->dither);
8192 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
8193 pipe_config->has_pch_encoder,
8194 pipe_config->fdi_lanes,
8195 pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n,
8196 pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n,
8197 pipe_config->fdi_m_n.tu);
8198 DRM_DEBUG_KMS("requested mode:\n");
8199 drm_mode_debug_printmodeline(&pipe_config->requested_mode);
8200 DRM_DEBUG_KMS("adjusted mode:\n");
8201 drm_mode_debug_printmodeline(&pipe_config->adjusted_mode);
8202 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
8203 pipe_config->gmch_pfit.control,
8204 pipe_config->gmch_pfit.pgm_ratios,
8205 pipe_config->gmch_pfit.lvds_border_bits);
fd4daa9c 8206 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
c0b03411 8207 pipe_config->pch_pfit.pos,
fd4daa9c
CW		 8208 pipe_config->pch_pfit.size,
8209 pipe_config->pch_pfit.enabled ? "enabled" : "disabled");
42db64ef 8210 DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled);
c0b03411
DV		 8211}
8212
accfc0c5
DV		 8213static bool check_encoder_cloning(struct drm_crtc *crtc)
8214{
8215 int num_encoders = 0;
8216 bool uncloneable_encoders = false;
8217 struct intel_encoder *encoder;
8218
8219 list_for_each_entry(encoder, &crtc->dev->mode_config.encoder_list,
8220 base.head) {
8221 if (&encoder->new_crtc->base != crtc)
8222 continue;
8223
8224 num_encoders++;
8225 if (!encoder->cloneable)
8226 uncloneable_encoders = true;
8227 }
8228
8229 return !(num_encoders > 1 && uncloneable_encoders);
8230}
8231
b8cecdf5
DV		 8232static struct intel_crtc_config *
8233intel_modeset_pipe_config(struct drm_crtc *crtc,
4e53c2e0 8234 struct drm_framebuffer *fb,
b8cecdf5 8235 struct drm_display_mode *mode)
ee7b9f93 8236{
7758a113 8237 struct drm_device *dev = crtc->dev;
7758a113 8238 struct intel_encoder *encoder;
b8cecdf5 8239 struct intel_crtc_config *pipe_config;
e29c22c0
DV		 8240 int plane_bpp, ret = -EINVAL;
8241 bool retry = true;
ee7b9f93 8242
accfc0c5
DV		 8243 if (!check_encoder_cloning(crtc)) {
8244 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
8245 return ERR_PTR(-EINVAL);
8246 }
8247
b8cecdf5
DV		 8248 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
8249 if (!pipe_config)
7758a113
DV		 8250 return ERR_PTR(-ENOMEM);
8251
b8cecdf5
DV		 8252 drm_mode_copy(&pipe_config->adjusted_mode, mode);
8253 drm_mode_copy(&pipe_config->requested_mode, mode);
e143a21c
DV		 8254 pipe_config->cpu_transcoder =
8255 (enum transcoder) to_intel_crtc(crtc)->pipe;
c0d43d62 8256 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
b8cecdf5 8257
2960bc9c
ID		 8258 /*
8259 * Sanitize sync polarity flags based on requested ones. If neither
8260 * positive or negative polarity is requested, treat this as meaning
8261 * negative polarity.
8262 */
8263 if (!(pipe_config->adjusted_mode.flags &
8264 (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC)))
8265 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC;
8266
8267 if (!(pipe_config->adjusted_mode.flags &
8268 (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC)))
8269 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC;
8270
050f7aeb
DV		 8271 /* Compute a starting value for pipe_config->pipe_bpp taking the source
8272 * plane pixel format and any sink constraints into account. Returns the
8273 * source plane bpp so that dithering can be selected on mismatches
8274 * after encoders and crtc also have had their say. */
8275 plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc),
8276 fb, pipe_config);
4e53c2e0
DV		 8277 if (plane_bpp < 0)
8278 goto fail;
8279
e29c22c0 8280encoder_retry:
ef1b460d 8281 /* Ensure the port clock defaults are reset when retrying. */
ff9a6750 8282 pipe_config->port_clock = 0;
ef1b460d 8283 pipe_config->pixel_multiplier = 1;
ff9a6750 8284
135c81b8
DV		 8285 /* Fill in default crtc timings, allow encoders to overwrite them. */
8286 drm_mode_set_crtcinfo(&pipe_config->adjusted_mode, 0);
8287
7758a113
DV		 8288 /* Pass our mode to the connectors and the CRTC to give them a chance to
8289 * adjust it according to limitations or connector properties, and also
8290 * a chance to reject the mode entirely.
47f1c6c9 8291 */
7758a113
DV		 8292 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8293 base.head) {
47f1c6c9 8294
7758a113
DV		 8295 if (&encoder->new_crtc->base != crtc)
8296 continue;
7ae89233 8297
efea6e8e
DV		 8298 if (!(encoder->compute_config(encoder, pipe_config))) {
8299 DRM_DEBUG_KMS("Encoder config failure\n");
7758a113
DV		 8300 goto fail;
8301 }
ee7b9f93 8302 }
47f1c6c9 8303
ff9a6750
DV		 8304 /* Set default port clock if not overwritten by the encoder. Needs to be
8305 * done afterwards in case the encoder adjusts the mode. */
8306 if (!pipe_config->port_clock)
8307 pipe_config->port_clock = pipe_config->adjusted_mode.clock;
8308
a43f6e0f 8309 ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config);
e29c22c0 8310 if (ret < 0) {
7758a113
DV		 8311 DRM_DEBUG_KMS("CRTC fixup failed\n");
8312 goto fail;
ee7b9f93 8313 }
e29c22c0
DV		 8314
8315 if (ret == RETRY) {
8316 if (WARN(!retry, "loop in pipe configuration computation\n")) {
8317 ret = -EINVAL;
8318 goto fail;
8319 }
8320
8321 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
8322 retry = false;
8323 goto encoder_retry;
8324 }
8325
4e53c2e0
DV		 8326 pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
8327 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
8328 plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
8329
b8cecdf5 8330 return pipe_config;
7758a113 8331fail:
b8cecdf5 8332 kfree(pipe_config);
e29c22c0 8333 return ERR_PTR(ret);
ee7b9f93 8334}
47f1c6c9 8335
e2e1ed41
DV		 8336/* Computes which crtcs are affected and sets the relevant bits in the mask. For
8337 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
8338static void
8339intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
8340 unsigned *prepare_pipes, unsigned *disable_pipes)
79e53945
JB		 8341{
8342 struct intel_crtc *intel_crtc;
e2e1ed41
DV		 8343 struct drm_device *dev = crtc->dev;
8344 struct intel_encoder *encoder;
8345 struct intel_connector *connector;
8346 struct drm_crtc *tmp_crtc;
79e53945 8347
e2e1ed41 8348 *disable_pipes = *modeset_pipes = *prepare_pipes = 0;
79e53945 8349
e2e1ed41
DV		 8350 /* Check which crtcs have changed outputs connected to them, these need
8351 * to be part of the prepare_pipes mask. We don't (yet) support global
8352 * modeset across multiple crtcs, so modeset_pipes will only have one
8353 * bit set at most. */
8354 list_for_each_entry(connector, &dev->mode_config.connector_list,
8355 base.head) {
8356 if (connector->base.encoder == &connector->new_encoder->base)
8357 continue;
79e53945 8358
e2e1ed41
DV		 8359 if (connector->base.encoder) {
8360 tmp_crtc = connector->base.encoder->crtc;
8361
8362 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
8363 }
8364
8365 if (connector->new_encoder)
8366 *prepare_pipes |=
8367 1 << connector->new_encoder->new_crtc->pipe;
79e53945
JB		 8368 }
8369
e2e1ed41
DV		 8370 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8371 base.head) {
8372 if (encoder->base.crtc == &encoder->new_crtc->base)
8373 continue;
8374
8375 if (encoder->base.crtc) {
8376 tmp_crtc = encoder->base.crtc;
8377
8378 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
8379 }
8380
8381 if (encoder->new_crtc)
8382 *prepare_pipes |= 1 << encoder->new_crtc->pipe;
80824003
JB		 8383 }
8384
e2e1ed41
DV		 8385 /* Check for any pipes that will be fully disabled ... */
8386 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
8387 base.head) {
8388 bool used = false;
22fd0fab 8389
e2e1ed41
DV		 8390 /* Don't try to disable disabled crtcs. */
8391 if (!intel_crtc->base.enabled)
8392 continue;
7e7d76c3 8393
e2e1ed41
DV		 8394 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8395 base.head) {
8396 if (encoder->new_crtc == intel_crtc)
8397 used = true;
8398 }
8399
8400 if (!used)
8401 *disable_pipes |= 1 << intel_crtc->pipe;
7e7d76c3
JB		 8402 }
8403
e2e1ed41
DV		 8404
8405 /* set_mode is also used to update properties on life display pipes. */
8406 intel_crtc = to_intel_crtc(crtc);
8407 if (crtc->enabled)
8408 *prepare_pipes |= 1 << intel_crtc->pipe;
8409
b6c5164d
DV		 8410 /*
8411 * For simplicity do a full modeset on any pipe where the output routing
8412 * changed. We could be more clever, but that would require us to be
8413 * more careful with calling the relevant encoder->mode_set functions.
8414 */
e2e1ed41
DV		 8415 if (*prepare_pipes)
8416 *modeset_pipes = *prepare_pipes;
8417
8418 /* ... and mask these out. */
8419 *modeset_pipes &= ~(*disable_pipes);
8420 *prepare_pipes &= ~(*disable_pipes);
b6c5164d
DV		 8421
8422 /*
8423 * HACK: We don't (yet) fully support global modesets. intel_set_config
8424 * obies this rule, but the modeset restore mode of
8425 * intel_modeset_setup_hw_state does not.
8426 */
8427 *modeset_pipes &= 1 << intel_crtc->pipe;
8428 *prepare_pipes &= 1 << intel_crtc->pipe;
e3641d3f
DV		 8429
8430 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
8431 *modeset_pipes, *prepare_pipes, *disable_pipes);
47f1c6c9 8432}
79e53945 8433
ea9d758d 8434static bool intel_crtc_in_use(struct drm_crtc *crtc)
f6e5b160 8435{
ea9d758d 8436 struct drm_encoder *encoder;
f6e5b160 8437 struct drm_device *dev = crtc->dev;
f6e5b160 8438
ea9d758d
DV		 8439 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
8440 if (encoder->crtc == crtc)
8441 return true;
8442
8443 return false;
8444}
8445
8446static void
8447intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
8448{
8449 struct intel_encoder *intel_encoder;
8450 struct intel_crtc *intel_crtc;
8451 struct drm_connector *connector;
8452
8453 list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
8454 base.head) {
8455 if (!intel_encoder->base.crtc)
8456 continue;
8457
8458 intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
8459
8460 if (prepare_pipes & (1 << intel_crtc->pipe))
8461 intel_encoder->connectors_active = false;
8462 }
8463
8464 intel_modeset_commit_output_state(dev);
8465
8466 /* Update computed state. */
8467 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
8468 base.head) {
8469 intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base);
8470 }
8471
8472 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
8473 if (!connector->encoder || !connector->encoder->crtc)
8474 continue;
8475
8476 intel_crtc = to_intel_crtc(connector->encoder->crtc);
8477
8478 if (prepare_pipes & (1 << intel_crtc->pipe)) {
68d34720
DV		 8479 struct drm_property *dpms_property =
8480 dev->mode_config.dpms_property;
8481
ea9d758d 8482 connector->dpms = DRM_MODE_DPMS_ON;
662595df 8483 drm_object_property_set_value(&connector->base,
68d34720
DV		 8484 dpms_property,
8485 DRM_MODE_DPMS_ON);
ea9d758d
DV		 8486
8487 intel_encoder = to_intel_encoder(connector->encoder);
8488 intel_encoder->connectors_active = true;
8489 }
8490 }
8491
8492}
8493
f1f644dc
JB		 8494static bool intel_fuzzy_clock_check(struct intel_crtc_config *cur,
8495 struct intel_crtc_config *new)
8496{
8497 int clock1, clock2, diff;
8498
8499 clock1 = cur->adjusted_mode.clock;
8500 clock2 = new->adjusted_mode.clock;
8501
8502 if (clock1 == clock2)
8503 return true;
8504
8505 if (!clock1 || !clock2)
8506 return false;
8507
8508 diff = abs(clock1 - clock2);
8509
8510 if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105)
8511 return true;
8512
8513 return false;
8514}
8515
25c5b266
DV		 8516#define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
8517 list_for_each_entry((intel_crtc), \
8518 &(dev)->mode_config.crtc_list, \
8519 base.head) \
0973f18f 8520 if (mask & (1 <<(intel_crtc)->pipe))
25c5b266 8521
0e8ffe1b 8522static bool
2fa2fe9a
DV		 8523intel_pipe_config_compare(struct drm_device *dev,
8524 struct intel_crtc_config *current_config,
0e8ffe1b
DV		 8525 struct intel_crtc_config *pipe_config)
8526{
66e985c0
DV		 8527#define PIPE_CONF_CHECK_X(name) \
8528 if (current_config->name != pipe_config->name) { \
8529 DRM_ERROR("mismatch in " #name " " \
8530 "(expected 0x%08x, found 0x%08x)\n", \
8531 current_config->name, \
8532 pipe_config->name); \
8533 return false; \
8534 }
8535
08a24034
DV		 8536#define PIPE_CONF_CHECK_I(name) \
8537 if (current_config->name != pipe_config->name) { \
8538 DRM_ERROR("mismatch in " #name " " \
8539 "(expected %i, found %i)\n", \
8540 current_config->name, \
8541 pipe_config->name); \
8542 return false; \
88adfff1
DV		 8543 }
8544
1bd1bd80
DV		 8545#define PIPE_CONF_CHECK_FLAGS(name, mask) \
8546 if ((current_config->name ^ pipe_config->name) & (mask)) { \
6f02488e 8547 DRM_ERROR("mismatch in " #name "(" #mask ") " \
1bd1bd80
DV		 8548 "(expected %i, found %i)\n", \
8549 current_config->name & (mask), \
8550 pipe_config->name & (mask)); \
8551 return false; \
8552 }
8553
bb760063
DV		 8554#define PIPE_CONF_QUIRK(quirk) \
8555 ((current_config->quirks | pipe_config->quirks) & (quirk))
8556
eccb140b
DV		 8557 PIPE_CONF_CHECK_I(cpu_transcoder);
8558
08a24034
DV		 8559 PIPE_CONF_CHECK_I(has_pch_encoder);
8560 PIPE_CONF_CHECK_I(fdi_lanes);
72419203
DV		 8561 PIPE_CONF_CHECK_I(fdi_m_n.gmch_m);
8562 PIPE_CONF_CHECK_I(fdi_m_n.gmch_n);
8563 PIPE_CONF_CHECK_I(fdi_m_n.link_m);
8564 PIPE_CONF_CHECK_I(fdi_m_n.link_n);
8565 PIPE_CONF_CHECK_I(fdi_m_n.tu);
08a24034 8566
1bd1bd80
DV		 8567 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay);
8568 PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal);
8569 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start);
8570 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end);
8571 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start);
8572 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end);
8573
8574 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay);
8575 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal);
8576 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start);
8577 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end);
8578 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start);
8579 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end);
8580
c93f54cf 8581 PIPE_CONF_CHECK_I(pixel_multiplier);
6c49f241 8582
1bd1bd80
DV		 8583 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8584 DRM_MODE_FLAG_INTERLACE);
8585
bb760063
DV		 8586 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) {
8587 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8588 DRM_MODE_FLAG_PHSYNC);
8589 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8590 DRM_MODE_FLAG_NHSYNC);
8591 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8592 DRM_MODE_FLAG_PVSYNC);
8593 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8594 DRM_MODE_FLAG_NVSYNC);
8595 }
045ac3b5 8596
1bd1bd80
DV		 8597 PIPE_CONF_CHECK_I(requested_mode.hdisplay);
8598 PIPE_CONF_CHECK_I(requested_mode.vdisplay);
8599
2fa2fe9a
DV		 8600 PIPE_CONF_CHECK_I(gmch_pfit.control);
8601 /* pfit ratios are autocomputed by the hw on gen4+ */
8602 if (INTEL_INFO(dev)->gen < 4)
8603 PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios);
8604 PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits);
fd4daa9c
CW		 8605 PIPE_CONF_CHECK_I(pch_pfit.enabled);
8606 if (current_config->pch_pfit.enabled) {
8607 PIPE_CONF_CHECK_I(pch_pfit.pos);
8608 PIPE_CONF_CHECK_I(pch_pfit.size);
8609 }
2fa2fe9a 8610
42db64ef
PZ		 8611 PIPE_CONF_CHECK_I(ips_enabled);
8612
c0d43d62 8613 PIPE_CONF_CHECK_I(shared_dpll);
66e985c0 8614 PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
8bcc2795 8615 PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
66e985c0
DV		 8616 PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
8617 PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
c0d43d62 8618
66e985c0 8619#undef PIPE_CONF_CHECK_X
08a24034 8620#undef PIPE_CONF_CHECK_I
1bd1bd80 8621#undef PIPE_CONF_CHECK_FLAGS
bb760063 8622#undef PIPE_CONF_QUIRK
88adfff1 8623
f1f644dc
JB		 8624 if (!IS_HASWELL(dev)) {
8625 if (!intel_fuzzy_clock_check(current_config, pipe_config)) {
6f02488e 8626 DRM_ERROR("mismatch in clock (expected %d, found %d)\n",
f1f644dc
JB		 8627 current_config->adjusted_mode.clock,
8628 pipe_config->adjusted_mode.clock);
8629 return false;
8630 }
8631 }
8632
0e8ffe1b
DV		 8633 return true;
8634}
8635
91d1b4bd
DV		 8636static void
8637check_connector_state(struct drm_device *dev)
8af6cf88 8638{
8af6cf88
DV		 8639 struct intel_connector *connector;
8640
8641 list_for_each_entry(connector, &dev->mode_config.connector_list,
8642 base.head) {
8643 /* This also checks the encoder/connector hw state with the
8644 * ->get_hw_state callbacks. */
8645 intel_connector_check_state(connector);
8646
8647 WARN(&connector->new_encoder->base != connector->base.encoder,
8648 "connector's staged encoder doesn't match current encoder\n");
8649 }
91d1b4bd
DV		 8650}
8651
8652static void
8653check_encoder_state(struct drm_device *dev)
8654{
8655 struct intel_encoder *encoder;
8656 struct intel_connector *connector;
8af6cf88
DV		 8657
8658 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8659 base.head) {
8660 bool enabled = false;
8661 bool active = false;
8662 enum pipe pipe, tracked_pipe;
8663
8664 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
8665 encoder->base.base.id,
8666 drm_get_encoder_name(&encoder->base));
8667
8668 WARN(&encoder->new_crtc->base != encoder->base.crtc,
8669 "encoder's stage crtc doesn't match current crtc\n");
8670 WARN(encoder->connectors_active && !encoder->base.crtc,
8671 "encoder's active_connectors set, but no crtc\n");
8672
8673 list_for_each_entry(connector, &dev->mode_config.connector_list,
8674 base.head) {
8675 if (connector->base.encoder != &encoder->base)
8676 continue;
8677 enabled = true;
8678 if (connector->base.dpms != DRM_MODE_DPMS_OFF)
8679 active = true;
8680 }
8681 WARN(!!encoder->base.crtc != enabled,
8682 "encoder's enabled state mismatch "
8683 "(expected %i, found %i)\n",
8684 !!encoder->base.crtc, enabled);
8685 WARN(active && !encoder->base.crtc,
8686 "active encoder with no crtc\n");
8687
8688 WARN(encoder->connectors_active != active,
8689 "encoder's computed active state doesn't match tracked active state "
8690 "(expected %i, found %i)\n", active, encoder->connectors_active);
8691
8692 active = encoder->get_hw_state(encoder, &pipe);
8693 WARN(active != encoder->connectors_active,
8694 "encoder's hw state doesn't match sw tracking "
8695 "(expected %i, found %i)\n",
8696 encoder->connectors_active, active);
8697
8698 if (!encoder->base.crtc)
8699 continue;
8700
8701 tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
8702 WARN(active && pipe != tracked_pipe,
8703 "active encoder's pipe doesn't match"
8704 "(expected %i, found %i)\n",
8705 tracked_pipe, pipe);
8706
8707 }
91d1b4bd
DV		 8708}
8709
8710static void
8711check_crtc_state(struct drm_device *dev)
8712{
8713 drm_i915_private_t *dev_priv = dev->dev_private;
8714 struct intel_crtc *crtc;
8715 struct intel_encoder *encoder;
8716 struct intel_crtc_config pipe_config;
8af6cf88
DV		 8717
8718 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
8719 base.head) {
8720 bool enabled = false;
8721 bool active = false;
8722
045ac3b5
JB		 8723 memset(&pipe_config, 0, sizeof(pipe_config));
8724
8af6cf88
DV		 8725 DRM_DEBUG_KMS("[CRTC:%d]\n",
8726 crtc->base.base.id);
8727
8728 WARN(crtc->active && !crtc->base.enabled,
8729 "active crtc, but not enabled in sw tracking\n");
8730
8731 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8732 base.head) {
8733 if (encoder->base.crtc != &crtc->base)
8734 continue;
8735 enabled = true;
8736 if (encoder->connectors_active)
8737 active = true;
8738 }
6c49f241 8739
8af6cf88
DV		 8740 WARN(active != crtc->active,
8741 "crtc's computed active state doesn't match tracked active state "
8742 "(expected %i, found %i)\n", active, crtc->active);
8743 WARN(enabled != crtc->base.enabled,
8744 "crtc's computed enabled state doesn't match tracked enabled state "
8745 "(expected %i, found %i)\n", enabled, crtc->base.enabled);
8746
0e8ffe1b
DV		 8747 active = dev_priv->display.get_pipe_config(crtc,
8748 &pipe_config);
d62cf62a
DV		 8749
8750 /* hw state is inconsistent with the pipe A quirk */
8751 if (crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
8752 active = crtc->active;
8753
6c49f241
DV		 8754 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8755 base.head) {
3eaba51c 8756 enum pipe pipe;
6c49f241
DV		 8757 if (encoder->base.crtc != &crtc->base)
8758 continue;
3eaba51c
VS		 8759 if (encoder->get_config &&
8760 encoder->get_hw_state(encoder, &pipe))
6c49f241
DV		 8761 encoder->get_config(encoder, &pipe_config);
8762 }
8763
510d5f2f
JB		 8764 if (dev_priv->display.get_clock)
8765 dev_priv->display.get_clock(crtc, &pipe_config);
8766
0e8ffe1b
DV		 8767 WARN(crtc->active != active,
8768 "crtc active state doesn't match with hw state "
8769 "(expected %i, found %i)\n", crtc->active, active);
8770
c0b03411
DV		 8771 if (active &&
8772 !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) {
8773 WARN(1, "pipe state doesn't match!\n");
8774 intel_dump_pipe_config(crtc, &pipe_config,
8775 "[hw state]");
8776 intel_dump_pipe_config(crtc, &crtc->config,
8777 "[sw state]");
8778 }
8af6cf88
DV		 8779 }
8780}
8781
91d1b4bd
DV		 8782static void
8783check_shared_dpll_state(struct drm_device *dev)
8784{
8785 drm_i915_private_t *dev_priv = dev->dev_private;
8786 struct intel_crtc *crtc;
8787 struct intel_dpll_hw_state dpll_hw_state;
8788 int i;
5358901f
DV		 8789
8790 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
8791 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
8792 int enabled_crtcs = 0, active_crtcs = 0;
8793 bool active;
8794
8795 memset(&dpll_hw_state, 0, sizeof(dpll_hw_state));
8796
8797 DRM_DEBUG_KMS("%s\n", pll->name);
8798
8799 active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state);
8800
8801 WARN(pll->active > pll->refcount,
8802 "more active pll users than references: %i vs %i\n",
8803 pll->active, pll->refcount);
8804 WARN(pll->active && !pll->on,
8805 "pll in active use but not on in sw tracking\n");
35c95375
DV		 8806 WARN(pll->on && !pll->active,
8807 "pll in on but not on in use in sw tracking\n");
5358901f
DV		 8808 WARN(pll->on != active,
8809 "pll on state mismatch (expected %i, found %i)\n",
8810 pll->on, active);
8811
8812 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
8813 base.head) {
8814 if (crtc->base.enabled && intel_crtc_to_shared_dpll(crtc) == pll)
8815 enabled_crtcs++;
8816 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
8817 active_crtcs++;
8818 }
8819 WARN(pll->active != active_crtcs,
8820 "pll active crtcs mismatch (expected %i, found %i)\n",
8821 pll->active, active_crtcs);
8822 WARN(pll->refcount != enabled_crtcs,
8823 "pll enabled crtcs mismatch (expected %i, found %i)\n",
8824 pll->refcount, enabled_crtcs);
66e985c0
DV		 8825
8826 WARN(pll->on && memcmp(&pll->hw_state, &dpll_hw_state,
8827 sizeof(dpll_hw_state)),
8828 "pll hw state mismatch\n");
5358901f 8829 }
8af6cf88
DV		 8830}
8831
91d1b4bd
DV		 8832void
8833intel_modeset_check_state(struct drm_device *dev)
8834{
8835 check_connector_state(dev);
8836 check_encoder_state(dev);
8837 check_crtc_state(dev);
8838 check_shared_dpll_state(dev);
8839}
8840
f30da187
DV		 8841static int __intel_set_mode(struct drm_crtc *crtc,
8842 struct drm_display_mode *mode,
8843 int x, int y, struct drm_framebuffer *fb)
a6778b3c
DV		 8844{
8845 struct drm_device *dev = crtc->dev;
dbf2b54e 8846 drm_i915_private_t *dev_priv = dev->dev_private;
b8cecdf5
DV		 8847 struct drm_display_mode *saved_mode, *saved_hwmode;
8848 struct intel_crtc_config *pipe_config = NULL;
25c5b266
DV		 8849 struct intel_crtc *intel_crtc;
8850 unsigned disable_pipes, prepare_pipes, modeset_pipes;
c0c36b94 8851 int ret = 0;
a6778b3c 8852
3ac18232 8853 saved_mode = kmalloc(2 * sizeof(*saved_mode), GFP_KERNEL);
c0c36b94
CW		 8854 if (!saved_mode)
8855 return -ENOMEM;
3ac18232 8856 saved_hwmode = saved_mode + 1;
a6778b3c 8857
e2e1ed41 8858 intel_modeset_affected_pipes(crtc, &modeset_pipes,
25c5b266
DV		 8859 &prepare_pipes, &disable_pipes);
8860
3ac18232
TG		 8861 *saved_hwmode = crtc->hwmode;
8862 *saved_mode = crtc->mode;
a6778b3c 8863
25c5b266
DV		 8864 /* Hack: Because we don't (yet) support global modeset on multiple
8865 * crtcs, we don't keep track of the new mode for more than one crtc.
8866 * Hence simply check whether any bit is set in modeset_pipes in all the
8867 * pieces of code that are not yet converted to deal with mutliple crtcs
8868 * changing their mode at the same time. */
25c5b266 8869 if (modeset_pipes) {
4e53c2e0 8870 pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
b8cecdf5
DV		 8871 if (IS_ERR(pipe_config)) {
8872 ret = PTR_ERR(pipe_config);
8873 pipe_config = NULL;
8874
3ac18232 8875 goto out;
25c5b266 8876 }
c0b03411
DV		 8877 intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config,
8878 "[modeset]");
25c5b266 8879 }
a6778b3c 8880
460da916
DV		 8881 for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
8882 intel_crtc_disable(&intel_crtc->base);
8883
ea9d758d
DV		 8884 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
8885 if (intel_crtc->base.enabled)
8886 dev_priv->display.crtc_disable(&intel_crtc->base);
8887 }
a6778b3c 8888
6c4c86f5
DV		 8889 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
8890 * to set it here already despite that we pass it down the callchain.
f6e5b160 8891 */
b8cecdf5 8892 if (modeset_pipes) {
25c5b266 8893 crtc->mode = *mode;
b8cecdf5
DV		 8894 /* mode_set/enable/disable functions rely on a correct pipe
8895 * config. */
8896 to_intel_crtc(crtc)->config = *pipe_config;
8897 }
7758a113 8898
ea9d758d
DV		 8899 /* Only after disabling all output pipelines that will be changed can we
8900 * update the the output configuration. */
8901 intel_modeset_update_state(dev, prepare_pipes);
f6e5b160 8902
47fab737
DV		 8903 if (dev_priv->display.modeset_global_resources)
8904 dev_priv->display.modeset_global_resources(dev);
8905
a6778b3c
DV		 8906 /* Set up the DPLL and any encoders state that needs to adjust or depend
8907 * on the DPLL.
f6e5b160 8908 */
25c5b266 8909 for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
c0c36b94 8910 ret = intel_crtc_mode_set(&intel_crtc->base,
c0c36b94
CW		 8911 x, y, fb);
8912 if (ret)
8913 goto done;
a6778b3c
DV		 8914 }
8915
8916 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
25c5b266
DV		 8917 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
8918 dev_priv->display.crtc_enable(&intel_crtc->base);
a6778b3c 8919
25c5b266
DV		 8920 if (modeset_pipes) {
8921 /* Store real post-adjustment hardware mode. */
b8cecdf5 8922 crtc->hwmode = pipe_config->adjusted_mode;
a6778b3c 8923
25c5b266
DV		 8924 /* Calculate and store various constants which
8925 * are later needed by vblank and swap-completion
8926 * timestamping. They are derived from true hwmode.
8927 */
8928 drm_calc_timestamping_constants(crtc);
8929 }
a6778b3c
DV		 8930
8931 /* FIXME: add subpixel order */
8932done:
c0c36b94 8933 if (ret && crtc->enabled) {
3ac18232
TG		 8934 crtc->hwmode = *saved_hwmode;
8935 crtc->mode = *saved_mode;
a6778b3c
DV		 8936 }
8937
3ac18232 8938out:
b8cecdf5 8939 kfree(pipe_config);
3ac18232 8940 kfree(saved_mode);
a6778b3c 8941 return ret;
f6e5b160
CW		 8942}
8943
e7457a9a
DL		 8944static int intel_set_mode(struct drm_crtc *crtc,
8945 struct drm_display_mode *mode,
8946 int x, int y, struct drm_framebuffer *fb)
f30da187
DV		 8947{
8948 int ret;
8949
8950 ret = __intel_set_mode(crtc, mode, x, y, fb);
8951
8952 if (ret == 0)
8953 intel_modeset_check_state(crtc->dev);
8954
8955 return ret;
8956}
8957
c0c36b94
CW		 8958void intel_crtc_restore_mode(struct drm_crtc *crtc)
8959{
8960 intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb);
8961}
8962
25c5b266
DV		 8963#undef for_each_intel_crtc_masked
8964
d9e55608
DV		 8965static void intel_set_config_free(struct intel_set_config *config)
8966{
8967 if (!config)
8968 return;
8969
1aa4b628
DV		 8970 kfree(config->save_connector_encoders);
8971 kfree(config->save_encoder_crtcs);
d9e55608
DV		 8972 kfree(config);
8973}
8974
85f9eb71
DV		 8975static int intel_set_config_save_state(struct drm_device *dev,
8976 struct intel_set_config *config)
8977{
85f9eb71
DV		 8978 struct drm_encoder *encoder;
8979 struct drm_connector *connector;
8980 int count;
8981
1aa4b628
DV		 8982 config->save_encoder_crtcs =
8983 kcalloc(dev->mode_config.num_encoder,
8984 sizeof(struct drm_crtc *), GFP_KERNEL);
8985 if (!config->save_encoder_crtcs)
85f9eb71
DV		 8986 return -ENOMEM;
8987
1aa4b628
DV		 8988 config->save_connector_encoders =
8989 kcalloc(dev->mode_config.num_connector,
8990 sizeof(struct drm_encoder *), GFP_KERNEL);
8991 if (!config->save_connector_encoders)
85f9eb71
DV		 8992 return -ENOMEM;
8993
8994 /* Copy data. Note that driver private data is not affected.
8995 * Should anything bad happen only the expected state is
8996 * restored, not the drivers personal bookkeeping.
8997 */
85f9eb71
DV		 8998 count = 0;
8999 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1aa4b628 9000 config->save_encoder_crtcs[count++] = encoder->crtc;
85f9eb71
DV		 9001 }
9002
9003 count = 0;
9004 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1aa4b628 9005 config->save_connector_encoders[count++] = connector->encoder;
85f9eb71
DV		 9006 }
9007
9008 return 0;
9009}
9010
9011static void intel_set_config_restore_state(struct drm_device *dev,
9012 struct intel_set_config *config)
9013{
9a935856
DV		 9014 struct intel_encoder *encoder;
9015 struct intel_connector *connector;
85f9eb71
DV		 9016 int count;
9017
85f9eb71 9018 count = 0;
9a935856
DV		 9019 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
9020 encoder->new_crtc =
9021 to_intel_crtc(config->save_encoder_crtcs[count++]);
85f9eb71
DV		 9022 }
9023
9024 count = 0;
9a935856
DV		 9025 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
9026 connector->new_encoder =
9027 to_intel_encoder(config->save_connector_encoders[count++]);
85f9eb71
DV		 9028 }
9029}
9030
e3de42b6 9031static bool
2e57f47d 9032is_crtc_connector_off(struct drm_mode_set *set)
e3de42b6
ID		 9033{
9034 int i;
9035
2e57f47d
CW		 9036 if (set->num_connectors == 0)
9037 return false;
9038
9039 if (WARN_ON(set->connectors == NULL))
9040 return false;
9041
9042 for (i = 0; i < set->num_connectors; i++)
9043 if (set->connectors[i]->encoder &&
9044 set->connectors[i]->encoder->crtc == set->crtc &&
9045 set->connectors[i]->dpms != DRM_MODE_DPMS_ON)
e3de42b6
ID		 9046 return true;
9047
9048 return false;
9049}
9050
5e2b584e
DV		 9051static void
9052intel_set_config_compute_mode_changes(struct drm_mode_set *set,
9053 struct intel_set_config *config)
9054{
9055
9056 /* We should be able to check here if the fb has the same properties
9057 * and then just flip_or_move it */
2e57f47d
CW		 9058 if (is_crtc_connector_off(set)) {
9059 config->mode_changed = true;
e3de42b6 9060 } else if (set->crtc->fb != set->fb) {
5e2b584e
DV		 9061 /* If we have no fb then treat it as a full mode set */
9062 if (set->crtc->fb == NULL) {
319d9827
JB		 9063 struct intel_crtc *intel_crtc =
9064 to_intel_crtc(set->crtc);
9065
9066 if (intel_crtc->active && i915_fastboot) {
9067 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
9068 config->fb_changed = true;
9069 } else {
9070 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
9071 config->mode_changed = true;
9072 }
5e2b584e
DV		 9073 } else if (set->fb == NULL) {
9074 config->mode_changed = true;
72f4901e
DV		 9075 } else if (set->fb->pixel_format !=
9076 set->crtc->fb->pixel_format) {
5e2b584e 9077 config->mode_changed = true;
e3de42b6 9078 } else {
5e2b584e 9079 config->fb_changed = true;
e3de42b6 9080 }
5e2b584e
DV		 9081 }
9082
835c5873 9083 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
5e2b584e
DV		 9084 config->fb_changed = true;
9085
9086 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
9087 DRM_DEBUG_KMS("modes are different, full mode set\n");
9088 drm_mode_debug_printmodeline(&set->crtc->mode);
9089 drm_mode_debug_printmodeline(set->mode);
9090 config->mode_changed = true;
9091 }
a1d95703
CW		 9092
9093 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
9094 set->crtc->base.id, config->mode_changed, config->fb_changed);
5e2b584e
DV		 9095}
9096
2e431051 9097static int
9a935856
DV		 9098intel_modeset_stage_output_state(struct drm_device *dev,
9099 struct drm_mode_set *set,
9100 struct intel_set_config *config)
50f56119 9101{
85f9eb71 9102 struct drm_crtc *new_crtc;
9a935856
DV		 9103 struct intel_connector *connector;
9104 struct intel_encoder *encoder;
f3f08572 9105 int ro;
50f56119 9106
9abdda74 9107 /* The upper layers ensure that we either disable a crtc or have a list
9a935856
DV		 9108 * of connectors. For paranoia, double-check this. */
9109 WARN_ON(!set->fb && (set->num_connectors != 0));
9110 WARN_ON(set->fb && (set->num_connectors == 0));
9111
9a935856
DV		 9112 list_for_each_entry(connector, &dev->mode_config.connector_list,
9113 base.head) {
9114 /* Otherwise traverse passed in connector list and get encoders
9115 * for them. */
50f56119 9116 for (ro = 0; ro < set->num_connectors; ro++) {
9a935856
DV		 9117 if (set->connectors[ro] == &connector->base) {
9118 connector->new_encoder = connector->encoder;
50f56119
DV		 9119 break;
9120 }
9121 }
9122
9a935856
DV		 9123 /* If we disable the crtc, disable all its connectors. Also, if
9124 * the connector is on the changing crtc but not on the new
9125 * connector list, disable it. */
9126 if ((!set->fb || ro == set->num_connectors) &&
9127 connector->base.encoder &&
9128 connector->base.encoder->crtc == set->crtc) {
9129 connector->new_encoder = NULL;
9130
9131 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
9132 connector->base.base.id,
9133 drm_get_connector_name(&connector->base));
9134 }
9135
9136
9137 if (&connector->new_encoder->base != connector->base.encoder) {
50f56119 9138 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
5e2b584e 9139 config->mode_changed = true;
50f56119
DV		 9140 }
9141 }
9a935856 9142 /* connector->new_encoder is now updated for all connectors. */
50f56119 9143
9a935856 9144 /* Update crtc of enabled connectors. */
9a935856
DV		 9145 list_for_each_entry(connector, &dev->mode_config.connector_list,
9146 base.head) {
9147 if (!connector->new_encoder)
50f56119
DV		 9148 continue;
9149
9a935856 9150 new_crtc = connector->new_encoder->base.crtc;
50f56119
DV		 9151
9152 for (ro = 0; ro < set->num_connectors; ro++) {
9a935856 9153 if (set->connectors[ro] == &connector->base)
50f56119
DV		 9154 new_crtc = set->crtc;
9155 }
9156
9157 /* Make sure the new CRTC will work with the encoder */
9a935856
DV		 9158 if (!intel_encoder_crtc_ok(&connector->new_encoder->base,
9159 new_crtc)) {
5e2b584e 9160 return -EINVAL;
50f56119 9161 }
9a935856
DV		 9162 connector->encoder->new_crtc = to_intel_crtc(new_crtc);
9163
9164 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
9165 connector->base.base.id,
9166 drm_get_connector_name(&connector->base),
9167 new_crtc->base.id);
9168 }
9169
9170 /* Check for any encoders that needs to be disabled. */
9171 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9172 base.head) {
9173 list_for_each_entry(connector,
9174 &dev->mode_config.connector_list,
9175 base.head) {
9176 if (connector->new_encoder == encoder) {
9177 WARN_ON(!connector->new_encoder->new_crtc);
9178
9179 goto next_encoder;
9180 }
9181 }
9182 encoder->new_crtc = NULL;
9183next_encoder:
9184 /* Only now check for crtc changes so we don't miss encoders
9185 * that will be disabled. */
9186 if (&encoder->new_crtc->base != encoder->base.crtc) {
50f56119 9187 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
5e2b584e 9188 config->mode_changed = true;
50f56119
DV		 9189 }
9190 }
9a935856 9191 /* Now we've also updated encoder->new_crtc for all encoders. */
50f56119 9192
2e431051
DV		 9193 return 0;
9194}
9195
9196static int intel_crtc_set_config(struct drm_mode_set *set)
9197{
9198 struct drm_device *dev;
2e431051
DV		 9199 struct drm_mode_set save_set;
9200 struct intel_set_config *config;
9201 int ret;
2e431051 9202
8d3e375e
DV		 9203 BUG_ON(!set);
9204 BUG_ON(!set->crtc);
9205 BUG_ON(!set->crtc->helper_private);
2e431051 9206
7e53f3a4
DV		 9207 /* Enforce sane interface api - has been abused by the fb helper. */
9208 BUG_ON(!set->mode && set->fb);
9209 BUG_ON(set->fb && set->num_connectors == 0);
431e50f7 9210
2e431051
DV		 9211 if (set->fb) {
9212 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
9213 set->crtc->base.id, set->fb->base.id,
9214 (int)set->num_connectors, set->x, set->y);
9215 } else {
9216 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
2e431051
DV		 9217 }
9218
9219 dev = set->crtc->dev;
9220
9221 ret = -ENOMEM;
9222 config = kzalloc(sizeof(*config), GFP_KERNEL);
9223 if (!config)
9224 goto out_config;
9225
9226 ret = intel_set_config_save_state(dev, config);
9227 if (ret)
9228 goto out_config;
9229
9230 save_set.crtc = set->crtc;
9231 save_set.mode = &set->crtc->mode;
9232 save_set.x = set->crtc->x;
9233 save_set.y = set->crtc->y;
9234 save_set.fb = set->crtc->fb;
9235
9236 /* Compute whether we need a full modeset, only an fb base update or no
9237 * change at all. In the future we might also check whether only the
9238 * mode changed, e.g. for LVDS where we only change the panel fitter in
9239 * such cases. */
9240 intel_set_config_compute_mode_changes(set, config);
9241
9a935856 9242 ret = intel_modeset_stage_output_state(dev, set, config);
2e431051
DV		 9243 if (ret)
9244 goto fail;
9245
5e2b584e 9246 if (config->mode_changed) {
c0c36b94
CW		 9247 ret = intel_set_mode(set->crtc, set->mode,
9248 set->x, set->y, set->fb);
5e2b584e 9249 } else if (config->fb_changed) {
4878cae2
VS		 9250 intel_crtc_wait_for_pending_flips(set->crtc);
9251
4f660f49 9252 ret = intel_pipe_set_base(set->crtc,
94352cf9 9253 set->x, set->y, set->fb);
50f56119
DV		 9254 }
9255
2d05eae1 9256 if (ret) {
bf67dfeb
DV		 9257 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
9258 set->crtc->base.id, ret);
50f56119 9259fail:
2d05eae1 9260 intel_set_config_restore_state(dev, config);
50f56119 9261
2d05eae1
CW		 9262 /* Try to restore the config */
9263 if (config->mode_changed &&
9264 intel_set_mode(save_set.crtc, save_set.mode,
9265 save_set.x, save_set.y, save_set.fb))
9266 DRM_ERROR("failed to restore config after modeset failure\n");
9267 }
50f56119 9268
d9e55608
DV		 9269out_config:
9270 intel_set_config_free(config);
50f56119
DV		 9271 return ret;
9272}
f6e5b160
CW		 9273
9274static const struct drm_crtc_funcs intel_crtc_funcs = {
f6e5b160
CW		 9275 .cursor_set = intel_crtc_cursor_set,
9276 .cursor_move = intel_crtc_cursor_move,
9277 .gamma_set = intel_crtc_gamma_set,
50f56119 9278 .set_config = intel_crtc_set_config,
f6e5b160
CW		 9279 .destroy = intel_crtc_destroy,
9280 .page_flip = intel_crtc_page_flip,
9281};
9282
79f689aa
PZ		 9283static void intel_cpu_pll_init(struct drm_device *dev)
9284{
affa9354 9285 if (HAS_DDI(dev))
79f689aa
PZ		 9286 intel_ddi_pll_init(dev);
9287}
9288
5358901f
DV		 9289static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv,
9290 struct intel_shared_dpll *pll,
9291 struct intel_dpll_hw_state *hw_state)
ee7b9f93 9292{
5358901f 9293 uint32_t val;
ee7b9f93 9294
5358901f 9295 val = I915_READ(PCH_DPLL(pll->id));
66e985c0
DV		 9296 hw_state->dpll = val;
9297 hw_state->fp0 = I915_READ(PCH_FP0(pll->id));
9298 hw_state->fp1 = I915_READ(PCH_FP1(pll->id));
5358901f
DV		 9299
9300 return val & DPLL_VCO_ENABLE;
9301}
9302
15bdd4cf
DV		 9303static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv,
9304 struct intel_shared_dpll *pll)
9305{
9306 I915_WRITE(PCH_FP0(pll->id), pll->hw_state.fp0);
9307 I915_WRITE(PCH_FP1(pll->id), pll->hw_state.fp1);
9308}
9309
e7b903d2
DV		 9310static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv,
9311 struct intel_shared_dpll *pll)
9312{
e7b903d2
DV		 9313 /* PCH refclock must be enabled first */
9314 assert_pch_refclk_enabled(dev_priv);
9315
15bdd4cf
DV		 9316 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
9317
9318 /* Wait for the clocks to stabilize. */
9319 POSTING_READ(PCH_DPLL(pll->id));
9320 udelay(150);
9321
9322 /* The pixel multiplier can only be updated once the
9323 * DPLL is enabled and the clocks are stable.
9324 *
9325 * So write it again.
9326 */
9327 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
9328 POSTING_READ(PCH_DPLL(pll->id));
e7b903d2
DV		 9329 udelay(200);
9330}
9331
9332static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv,
9333 struct intel_shared_dpll *pll)
9334{
9335 struct drm_device *dev = dev_priv->dev;
9336 struct intel_crtc *crtc;
e7b903d2
DV		 9337
9338 /* Make sure no transcoder isn't still depending on us. */
9339 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
9340 if (intel_crtc_to_shared_dpll(crtc) == pll)
9341 assert_pch_transcoder_disabled(dev_priv, crtc->pipe);
ee7b9f93
JB		 9342 }
9343
15bdd4cf
DV		 9344 I915_WRITE(PCH_DPLL(pll->id), 0);
9345 POSTING_READ(PCH_DPLL(pll->id));
e7b903d2
DV		 9346 udelay(200);
9347}
9348
46edb027
DV		 9349static char *ibx_pch_dpll_names[] = {
9350 "PCH DPLL A",
9351 "PCH DPLL B",
9352};
9353
7c74ade1 9354static void ibx_pch_dpll_init(struct drm_device *dev)
ee7b9f93 9355{
e7b903d2 9356 struct drm_i915_private *dev_priv = dev->dev_private;
ee7b9f93
JB		 9357 int i;
9358
7c74ade1 9359 dev_priv->num_shared_dpll = 2;
ee7b9f93 9360
e72f9fbf 9361 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
46edb027
DV		 9362 dev_priv->shared_dplls[i].id = i;
9363 dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i];
15bdd4cf 9364 dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set;
e7b903d2
DV		 9365 dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable;
9366 dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable;
5358901f
DV		 9367 dev_priv->shared_dplls[i].get_hw_state =
9368 ibx_pch_dpll_get_hw_state;
ee7b9f93
JB		 9369 }
9370}
9371
7c74ade1
DV		 9372static void intel_shared_dpll_init(struct drm_device *dev)
9373{
e7b903d2 9374 struct drm_i915_private *dev_priv = dev->dev_private;
7c74ade1
DV		 9375
9376 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
9377 ibx_pch_dpll_init(dev);
9378 else
9379 dev_priv->num_shared_dpll = 0;
9380
9381 BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS);
9382 DRM_DEBUG_KMS("%i shared PLLs initialized\n",
9383 dev_priv->num_shared_dpll);
9384}
9385
b358d0a6 9386static void intel_crtc_init(struct drm_device *dev, int pipe)
79e53945 9387{
22fd0fab 9388 drm_i915_private_t *dev_priv = dev->dev_private;
79e53945
JB		 9389 struct intel_crtc *intel_crtc;
9390 int i;
9391
9392 intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
9393 if (intel_crtc == NULL)
9394 return;
9395
9396 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
9397
9398 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
79e53945
JB		 9399 for (i = 0; i < 256; i++) {
9400 intel_crtc->lut_r[i] = i;
9401 intel_crtc->lut_g[i] = i;
9402 intel_crtc->lut_b[i] = i;
9403 }
9404
80824003
JB		 9405 /* Swap pipes & planes for FBC on pre-965 */
9406 intel_crtc->pipe = pipe;
9407 intel_crtc->plane = pipe;
e2e767ab 9408 if (IS_MOBILE(dev) && IS_GEN3(dev)) {
28c97730 9409 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
e2e767ab 9410 intel_crtc->plane = !pipe;
80824003
JB		 9411 }
9412
22fd0fab
JB		 9413 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
9414 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
9415 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
9416 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
9417
79e53945 9418 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
79e53945
JB		 9419}
9420
08d7b3d1 9421int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
05394f39 9422 struct drm_file *file)
08d7b3d1 9423{
08d7b3d1 9424 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
c05422d5
DV		 9425 struct drm_mode_object *drmmode_obj;
9426 struct intel_crtc *crtc;
08d7b3d1 9427
1cff8f6b
DV		 9428 if (!drm_core_check_feature(dev, DRIVER_MODESET))
9429 return -ENODEV;
08d7b3d1 9430
c05422d5
DV		 9431 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
9432 DRM_MODE_OBJECT_CRTC);
08d7b3d1 9433
c05422d5 9434 if (!drmmode_obj) {
08d7b3d1
CW		 9435 DRM_ERROR("no such CRTC id\n");
9436 return -EINVAL;
9437 }
9438
c05422d5
DV		 9439 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
9440 pipe_from_crtc_id->pipe = crtc->pipe;
08d7b3d1 9441
c05422d5 9442 return 0;
08d7b3d1
CW		 9443}
9444
66a9278e 9445static int intel_encoder_clones(struct intel_encoder *encoder)
79e53945 9446{
66a9278e
DV		 9447 struct drm_device *dev = encoder->base.dev;
9448 struct intel_encoder *source_encoder;
79e53945 9449 int index_mask = 0;
79e53945
JB		 9450 int entry = 0;
9451
66a9278e
DV		 9452 list_for_each_entry(source_encoder,
9453 &dev->mode_config.encoder_list, base.head) {
9454
9455 if (encoder == source_encoder)
79e53945 9456 index_mask |= (1 << entry);
66a9278e
DV		 9457
9458 /* Intel hw has only one MUX where enocoders could be cloned. */
9459 if (encoder->cloneable && source_encoder->cloneable)
9460 index_mask |= (1 << entry);
9461
79e53945
JB		 9462 entry++;
9463 }
4ef69c7a 9464
79e53945
JB		 9465 return index_mask;
9466}
9467
4d302442
CW		 9468static bool has_edp_a(struct drm_device *dev)
9469{
9470 struct drm_i915_private *dev_priv = dev->dev_private;
9471
9472 if (!IS_MOBILE(dev))
9473 return false;
9474
9475 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
9476 return false;
9477
9478 if (IS_GEN5(dev) &&
9479 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
9480 return false;
9481
9482 return true;
9483}
9484
79e53945
JB		 9485static void intel_setup_outputs(struct drm_device *dev)
9486{
725e30ad 9487 struct drm_i915_private *dev_priv = dev->dev_private;
4ef69c7a 9488 struct intel_encoder *encoder;
cb0953d7 9489 bool dpd_is_edp = false;
79e53945 9490
c9093354 9491 intel_lvds_init(dev);
79e53945 9492
c40c0f5b 9493 if (!IS_ULT(dev))
79935fca 9494 intel_crt_init(dev);
cb0953d7 9495
affa9354 9496 if (HAS_DDI(dev)) {
0e72a5b5
ED		 9497 int found;
9498
9499 /* Haswell uses DDI functions to detect digital outputs */
9500 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
9501 /* DDI A only supports eDP */
9502 if (found)
9503 intel_ddi_init(dev, PORT_A);
9504
9505 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
9506 * register */
9507 found = I915_READ(SFUSE_STRAP);
9508
9509 if (found & SFUSE_STRAP_DDIB_DETECTED)
9510 intel_ddi_init(dev, PORT_B);
9511 if (found & SFUSE_STRAP_DDIC_DETECTED)
9512 intel_ddi_init(dev, PORT_C);
9513 if (found & SFUSE_STRAP_DDID_DETECTED)
9514 intel_ddi_init(dev, PORT_D);
9515 } else if (HAS_PCH_SPLIT(dev)) {
cb0953d7 9516 int found;
270b3042
DV		 9517 dpd_is_edp = intel_dpd_is_edp(dev);
9518
9519 if (has_edp_a(dev))
9520 intel_dp_init(dev, DP_A, PORT_A);
cb0953d7 9521
dc0fa718 9522 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
461ed3ca 9523 /* PCH SDVOB multiplex with HDMIB */
eef4eacb 9524 found = intel_sdvo_init(dev, PCH_SDVOB, true);
30ad48b7 9525 if (!found)
e2debe91 9526 intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
5eb08b69 9527 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
ab9d7c30 9528 intel_dp_init(dev, PCH_DP_B, PORT_B);
30ad48b7
ZW		 9529 }
9530
dc0fa718 9531 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
e2debe91 9532 intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
30ad48b7 9533
dc0fa718 9534 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
e2debe91 9535 intel_hdmi_init(dev, PCH_HDMID, PORT_D);
30ad48b7 9536
5eb08b69 9537 if (I915_READ(PCH_DP_C) & DP_DETECTED)
ab9d7c30 9538 intel_dp_init(dev, PCH_DP_C, PORT_C);
5eb08b69 9539
270b3042 9540 if (I915_READ(PCH_DP_D) & DP_DETECTED)
ab9d7c30 9541 intel_dp_init(dev, PCH_DP_D, PORT_D);
4a87d65d 9542 } else if (IS_VALLEYVIEW(dev)) {
19c03924 9543 /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */
6f6005a5
JB		 9544 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED) {
9545 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC,
9546 PORT_C);
9547 if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
9548 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C,
9549 PORT_C);
9550 }
19c03924 9551
dc0fa718 9552 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
e2debe91
PZ		 9553 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
9554 PORT_B);
67cfc203
VS		 9555 if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
9556 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
4a87d65d 9557 }
103a196f 9558 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
27185ae1 9559 bool found = false;
7d57382e 9560
e2debe91 9561 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
b01f2c3a 9562 DRM_DEBUG_KMS("probing SDVOB\n");
e2debe91 9563 found = intel_sdvo_init(dev, GEN3_SDVOB, true);
b01f2c3a
JB		 9564 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
9565 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
e2debe91 9566 intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
b01f2c3a 9567 }
27185ae1 9568
e7281eab 9569 if (!found && SUPPORTS_INTEGRATED_DP(dev))
ab9d7c30 9570 intel_dp_init(dev, DP_B, PORT_B);
725e30ad 9571 }
13520b05
KH		 9572
9573 /* Before G4X SDVOC doesn't have its own detect register */
13520b05 9574
e2debe91 9575 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
b01f2c3a 9576 DRM_DEBUG_KMS("probing SDVOC\n");
e2debe91 9577 found = intel_sdvo_init(dev, GEN3_SDVOC, false);
b01f2c3a 9578 }
27185ae1 9579
e2debe91 9580 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
27185ae1 9581
b01f2c3a
JB		 9582 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
9583 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
e2debe91 9584 intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
b01f2c3a 9585 }
e7281eab 9586 if (SUPPORTS_INTEGRATED_DP(dev))
ab9d7c30 9587 intel_dp_init(dev, DP_C, PORT_C);
725e30ad 9588 }
27185ae1 9589
b01f2c3a 9590 if (SUPPORTS_INTEGRATED_DP(dev) &&
e7281eab 9591 (I915_READ(DP_D) & DP_DETECTED))
ab9d7c30 9592 intel_dp_init(dev, DP_D, PORT_D);
bad720ff 9593 } else if (IS_GEN2(dev))
79e53945
JB		 9594 intel_dvo_init(dev);
9595
103a196f 9596 if (SUPPORTS_TV(dev))
79e53945
JB		 9597 intel_tv_init(dev);
9598
4ef69c7a
CW		 9599 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
9600 encoder->base.possible_crtcs = encoder->crtc_mask;
9601 encoder->base.possible_clones =
66a9278e 9602 intel_encoder_clones(encoder);
79e53945 9603 }
47356eb6 9604
dde86e2d 9605 intel_init_pch_refclk(dev);
270b3042
DV		 9606
9607 drm_helper_move_panel_connectors_to_head(dev);
79e53945
JB		 9608}
9609
ddfe1567
CW		 9610void intel_framebuffer_fini(struct intel_framebuffer *fb)
9611{
9612 drm_framebuffer_cleanup(&fb->base);
9613 drm_gem_object_unreference_unlocked(&fb->obj->base);
9614}
9615
79e53945
JB		 9616static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
9617{
9618 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
79e53945 9619
ddfe1567 9620 intel_framebuffer_fini(intel_fb);
79e53945
JB		 9621 kfree(intel_fb);
9622}
9623
9624static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
05394f39 9625 struct drm_file *file,
79e53945
JB		 9626 unsigned int *handle)
9627{
9628 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
05394f39 9629 struct drm_i915_gem_object *obj = intel_fb->obj;
79e53945 9630
05394f39 9631 return drm_gem_handle_create(file, &obj->base, handle);
79e53945
JB		 9632}
9633
9634static const struct drm_framebuffer_funcs intel_fb_funcs = {
9635 .destroy = intel_user_framebuffer_destroy,
9636 .create_handle = intel_user_framebuffer_create_handle,
9637};
9638
38651674
DA		 9639int intel_framebuffer_init(struct drm_device *dev,
9640 struct intel_framebuffer *intel_fb,
308e5bcb 9641 struct drm_mode_fb_cmd2 *mode_cmd,
05394f39 9642 struct drm_i915_gem_object *obj)
79e53945 9643{
a35cdaa0 9644 int pitch_limit;
79e53945
JB		 9645 int ret;
9646
c16ed4be
CW		 9647 if (obj->tiling_mode == I915_TILING_Y) {
9648 DRM_DEBUG("hardware does not support tiling Y\n");
57cd6508 9649 return -EINVAL;
c16ed4be 9650 }
57cd6508 9651
c16ed4be
CW		 9652 if (mode_cmd->pitches[0] & 63) {
9653 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
9654 mode_cmd->pitches[0]);
57cd6508 9655 return -EINVAL;
c16ed4be 9656 }
57cd6508 9657
a35cdaa0
CW		 9658 if (INTEL_INFO(dev)->gen >= 5 && !IS_VALLEYVIEW(dev)) {
9659 pitch_limit = 32*1024;
9660 } else if (INTEL_INFO(dev)->gen >= 4) {
9661 if (obj->tiling_mode)
9662 pitch_limit = 16*1024;
9663 else
9664 pitch_limit = 32*1024;
9665 } else if (INTEL_INFO(dev)->gen >= 3) {
9666 if (obj->tiling_mode)
9667 pitch_limit = 8*1024;
9668 else
9669 pitch_limit = 16*1024;
9670 } else
9671 /* XXX DSPC is limited to 4k tiled */
9672 pitch_limit = 8*1024;
9673
9674 if (mode_cmd->pitches[0] > pitch_limit) {
9675 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
9676 obj->tiling_mode ? "tiled" : "linear",
9677 mode_cmd->pitches[0], pitch_limit);
5d7bd705 9678 return -EINVAL;
c16ed4be 9679 }
5d7bd705
VS		 9680
9681 if (obj->tiling_mode != I915_TILING_NONE &&
c16ed4be
CW		 9682 mode_cmd->pitches[0] != obj->stride) {
9683 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
9684 mode_cmd->pitches[0], obj->stride);
5d7bd705 9685 return -EINVAL;
c16ed4be 9686 }
5d7bd705 9687
57779d06 9688 /* Reject formats not supported by any plane early. */
308e5bcb 9689 switch (mode_cmd->pixel_format) {
57779d06 9690 case DRM_FORMAT_C8:
04b3924d
VS		 9691 case DRM_FORMAT_RGB565:
9692 case DRM_FORMAT_XRGB8888:
9693 case DRM_FORMAT_ARGB8888:
57779d06
VS		 9694 break;
9695 case DRM_FORMAT_XRGB1555:
9696 case DRM_FORMAT_ARGB1555:
c16ed4be 9697 if (INTEL_INFO(dev)->gen > 3) {
4ee62c76
VS		 9698 DRM_DEBUG("unsupported pixel format: %s\n",
9699 drm_get_format_name(mode_cmd->pixel_format));
57779d06 9700 return -EINVAL;
c16ed4be 9701 }
57779d06
VS		 9702 break;
9703 case DRM_FORMAT_XBGR8888:
9704 case DRM_FORMAT_ABGR8888:
04b3924d
VS		 9705 case DRM_FORMAT_XRGB2101010:
9706 case DRM_FORMAT_ARGB2101010:
57779d06
VS		 9707 case DRM_FORMAT_XBGR2101010:
9708 case DRM_FORMAT_ABGR2101010:
c16ed4be 9709 if (INTEL_INFO(dev)->gen < 4) {
4ee62c76
VS		 9710 DRM_DEBUG("unsupported pixel format: %s\n",
9711 drm_get_format_name(mode_cmd->pixel_format));
57779d06 9712 return -EINVAL;
c16ed4be 9713 }
b5626747 9714 break;
04b3924d
VS		 9715 case DRM_FORMAT_YUYV:
9716 case DRM_FORMAT_UYVY:
9717 case DRM_FORMAT_YVYU:
9718 case DRM_FORMAT_VYUY:
c16ed4be 9719 if (INTEL_INFO(dev)->gen < 5) {
4ee62c76
VS		 9720 DRM_DEBUG("unsupported pixel format: %s\n",
9721 drm_get_format_name(mode_cmd->pixel_format));
57779d06 9722 return -EINVAL;
c16ed4be 9723 }
57cd6508
CW		 9724 break;
9725 default:
4ee62c76
VS		 9726 DRM_DEBUG("unsupported pixel format: %s\n",
9727 drm_get_format_name(mode_cmd->pixel_format));
57cd6508
CW		 9728 return -EINVAL;
9729 }
9730
90f9a336
VS		 9731 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
9732 if (mode_cmd->offsets[0] != 0)
9733 return -EINVAL;
9734
c7d73f6a
DV		 9735 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
9736 intel_fb->obj = obj;
9737
79e53945
JB		 9738 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
9739 if (ret) {
9740 DRM_ERROR("framebuffer init failed %d\n", ret);
9741 return ret;
9742 }
9743
79e53945
JB		 9744 return 0;
9745}
9746
79e53945
JB		 9747static struct drm_framebuffer *
9748intel_user_framebuffer_create(struct drm_device *dev,
9749 struct drm_file *filp,
308e5bcb 9750 struct drm_mode_fb_cmd2 *mode_cmd)
79e53945 9751{
05394f39 9752 struct drm_i915_gem_object *obj;
79e53945 9753
308e5bcb
JB		 9754 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
9755 mode_cmd->handles[0]));
c8725226 9756 if (&obj->base == NULL)
cce13ff7 9757 return ERR_PTR(-ENOENT);
79e53945 9758
d2dff872 9759 return intel_framebuffer_create(dev, mode_cmd, obj);
79e53945
JB		 9760}
9761
79e53945 9762static const struct drm_mode_config_funcs intel_mode_funcs = {
79e53945 9763 .fb_create = intel_user_framebuffer_create,
eb1f8e4f 9764 .output_poll_changed = intel_fb_output_poll_changed,
79e53945
JB		 9765};
9766
e70236a8
JB		 9767/* Set up chip specific display functions */
9768static void intel_init_display(struct drm_device *dev)
9769{
9770 struct drm_i915_private *dev_priv = dev->dev_private;
9771
ee9300bb
DV		 9772 if (HAS_PCH_SPLIT(dev) || IS_G4X(dev))
9773 dev_priv->display.find_dpll = g4x_find_best_dpll;
9774 else if (IS_VALLEYVIEW(dev))
9775 dev_priv->display.find_dpll = vlv_find_best_dpll;
9776 else if (IS_PINEVIEW(dev))
9777 dev_priv->display.find_dpll = pnv_find_best_dpll;
9778 else
9779 dev_priv->display.find_dpll = i9xx_find_best_dpll;
9780
affa9354 9781 if (HAS_DDI(dev)) {
0e8ffe1b 9782 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
09b4ddf9 9783 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
4f771f10
PZ		 9784 dev_priv->display.crtc_enable = haswell_crtc_enable;
9785 dev_priv->display.crtc_disable = haswell_crtc_disable;
6441ab5f 9786 dev_priv->display.off = haswell_crtc_off;
09b4ddf9
PZ		 9787 dev_priv->display.update_plane = ironlake_update_plane;
9788 } else if (HAS_PCH_SPLIT(dev)) {
0e8ffe1b 9789 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
f1f644dc 9790 dev_priv->display.get_clock = ironlake_crtc_clock_get;
f564048e 9791 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
76e5a89c
DV		 9792 dev_priv->display.crtc_enable = ironlake_crtc_enable;
9793 dev_priv->display.crtc_disable = ironlake_crtc_disable;
ee7b9f93 9794 dev_priv->display.off = ironlake_crtc_off;
17638cd6 9795 dev_priv->display.update_plane = ironlake_update_plane;
89b667f8
JB		 9796 } else if (IS_VALLEYVIEW(dev)) {
9797 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
f1f644dc 9798 dev_priv->display.get_clock = i9xx_crtc_clock_get;
89b667f8
JB		 9799 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
9800 dev_priv->display.crtc_enable = valleyview_crtc_enable;
9801 dev_priv->display.crtc_disable = i9xx_crtc_disable;
9802 dev_priv->display.off = i9xx_crtc_off;
9803 dev_priv->display.update_plane = i9xx_update_plane;
f564048e 9804 } else {
0e8ffe1b 9805 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
f1f644dc 9806 dev_priv->display.get_clock = i9xx_crtc_clock_get;
f564048e 9807 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
76e5a89c
DV		 9808 dev_priv->display.crtc_enable = i9xx_crtc_enable;
9809 dev_priv->display.crtc_disable = i9xx_crtc_disable;
ee7b9f93 9810 dev_priv->display.off = i9xx_crtc_off;
17638cd6 9811 dev_priv->display.update_plane = i9xx_update_plane;
f564048e 9812 }
e70236a8 9813
e70236a8 9814 /* Returns the core display clock speed */
25eb05fc
JB		 9815 if (IS_VALLEYVIEW(dev))
9816 dev_priv->display.get_display_clock_speed =
9817 valleyview_get_display_clock_speed;
9818 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
e70236a8
JB		 9819 dev_priv->display.get_display_clock_speed =
9820 i945_get_display_clock_speed;
9821 else if (IS_I915G(dev))
9822 dev_priv->display.get_display_clock_speed =
9823 i915_get_display_clock_speed;
257a7ffc 9824 else if (IS_I945GM(dev) || IS_845G(dev))
e70236a8
JB		 9825 dev_priv->display.get_display_clock_speed =
9826 i9xx_misc_get_display_clock_speed;
257a7ffc
DV		 9827 else if (IS_PINEVIEW(dev))
9828 dev_priv->display.get_display_clock_speed =
9829 pnv_get_display_clock_speed;
e70236a8
JB		 9830 else if (IS_I915GM(dev))
9831 dev_priv->display.get_display_clock_speed =
9832 i915gm_get_display_clock_speed;
9833 else if (IS_I865G(dev))
9834 dev_priv->display.get_display_clock_speed =
9835 i865_get_display_clock_speed;
f0f8a9ce 9836 else if (IS_I85X(dev))
e70236a8
JB		 9837 dev_priv->display.get_display_clock_speed =
9838 i855_get_display_clock_speed;
9839 else /* 852, 830 */
9840 dev_priv->display.get_display_clock_speed =
9841 i830_get_display_clock_speed;
9842
7f8a8569 9843 if (HAS_PCH_SPLIT(dev)) {
f00a3ddf 9844 if (IS_GEN5(dev)) {
674cf967 9845 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
e0dac65e 9846 dev_priv->display.write_eld = ironlake_write_eld;
1398261a 9847 } else if (IS_GEN6(dev)) {
674cf967 9848 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
e0dac65e 9849 dev_priv->display.write_eld = ironlake_write_eld;
357555c0
JB		 9850 } else if (IS_IVYBRIDGE(dev)) {
9851 /* FIXME: detect B0+ stepping and use auto training */
9852 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
e0dac65e 9853 dev_priv->display.write_eld = ironlake_write_eld;
01a415fd
DV		 9854 dev_priv->display.modeset_global_resources =
9855 ivb_modeset_global_resources;
c82e4d26
ED		 9856 } else if (IS_HASWELL(dev)) {
9857 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
83358c85 9858 dev_priv->display.write_eld = haswell_write_eld;
d6dd9eb1
DV		 9859 dev_priv->display.modeset_global_resources =
9860 haswell_modeset_global_resources;
a0e63c22 9861 }
6067aaea 9862 } else if (IS_G4X(dev)) {
e0dac65e 9863 dev_priv->display.write_eld = g4x_write_eld;
e70236a8 9864 }
8c9f3aaf
JB		 9865
9866 /* Default just returns -ENODEV to indicate unsupported */
9867 dev_priv->display.queue_flip = intel_default_queue_flip;
9868
9869 switch (INTEL_INFO(dev)->gen) {
9870 case 2:
9871 dev_priv->display.queue_flip = intel_gen2_queue_flip;
9872 break;
9873
9874 case 3:
9875 dev_priv->display.queue_flip = intel_gen3_queue_flip;
9876 break;
9877
9878 case 4:
9879 case 5:
9880 dev_priv->display.queue_flip = intel_gen4_queue_flip;
9881 break;
9882
9883 case 6:
9884 dev_priv->display.queue_flip = intel_gen6_queue_flip;
9885 break;
7c9017e5
JB		 9886 case 7:
9887 dev_priv->display.queue_flip = intel_gen7_queue_flip;
9888 break;
8c9f3aaf 9889 }
e70236a8
JB		 9890}
9891
b690e96c
JB		 9892/*
9893 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
9894 * resume, or other times. This quirk makes sure that's the case for
9895 * affected systems.
9896 */
0206e353 9897static void quirk_pipea_force(struct drm_device *dev)
b690e96c
JB		 9898{
9899 struct drm_i915_private *dev_priv = dev->dev_private;
9900
9901 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
bc0daf48 9902 DRM_INFO("applying pipe a force quirk\n");
b690e96c
JB		 9903}
9904
435793df
KP		 9905/*
9906 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
9907 */
9908static void quirk_ssc_force_disable(struct drm_device *dev)
9909{
9910 struct drm_i915_private *dev_priv = dev->dev_private;
9911 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
bc0daf48 9912 DRM_INFO("applying lvds SSC disable quirk\n");
435793df
KP		 9913}
9914
4dca20ef 9915/*
5a15ab5b
CE		 9916 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
9917 * brightness value
4dca20ef
CE		 9918 */
9919static void quirk_invert_brightness(struct drm_device *dev)
9920{
9921 struct drm_i915_private *dev_priv = dev->dev_private;
9922 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
bc0daf48 9923 DRM_INFO("applying inverted panel brightness quirk\n");
435793df
KP		 9924}
9925
e85843be
KM		 9926/*
9927 * Some machines (Dell XPS13) suffer broken backlight controls if
9928 * BLM_PCH_PWM_ENABLE is set.
9929 */
9930static void quirk_no_pcm_pwm_enable(struct drm_device *dev)
9931{
9932 struct drm_i915_private *dev_priv = dev->dev_private;
9933 dev_priv->quirks |= QUIRK_NO_PCH_PWM_ENABLE;
9934 DRM_INFO("applying no-PCH_PWM_ENABLE quirk\n");
9935}
9936
b690e96c
JB		 9937struct intel_quirk {
9938 int device;
9939 int subsystem_vendor;
9940 int subsystem_device;
9941 void (*hook)(struct drm_device *dev);
9942};
9943
5f85f176
EE		 9944/* For systems that don't have a meaningful PCI subdevice/subvendor ID */
9945struct intel_dmi_quirk {
9946 void (*hook)(struct drm_device *dev);
9947 const struct dmi_system_id (*dmi_id_list)[];
9948};
9949
9950static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
9951{
9952 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
9953 return 1;
9954}
9955
9956static const struct intel_dmi_quirk intel_dmi_quirks[] = {
9957 {
9958 .dmi_id_list = &(const struct dmi_system_id[]) {
9959 {
9960 .callback = intel_dmi_reverse_brightness,
9961 .ident = "NCR Corporation",
9962 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
9963 DMI_MATCH(DMI_PRODUCT_NAME, ""),
9964 },
9965 },
9966 { } /* terminating entry */
9967 },
9968 .hook = quirk_invert_brightness,
9969 },
9970};
9971
c43b5634 9972static struct intel_quirk intel_quirks[] = {
b690e96c 9973 /* HP Mini needs pipe A force quirk (LP: #322104) */
0206e353 9974 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
b690e96c 9975
b690e96c
JB		 9976 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
9977 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
9978
b690e96c
JB		 9979 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
9980 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
9981
ccd0d36e 9982 /* 830/845 need to leave pipe A & dpll A up */
b690e96c 9983 { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
dcdaed6e 9984 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
435793df
KP		 9985
9986 /* Lenovo U160 cannot use SSC on LVDS */
9987 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
070d329a
MAS		 9988
9989 /* Sony Vaio Y cannot use SSC on LVDS */
9990 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
5a15ab5b
CE		 9991
9992 /* Acer Aspire 5734Z must invert backlight brightness */
9993 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
1ffff603
JN		 9994
9995 /* Acer/eMachines G725 */
9996 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
01e3a8fe
JN		 9997
9998 /* Acer/eMachines e725 */
9999 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
5559ecad
JN		 10000
10001 /* Acer/Packard Bell NCL20 */
10002 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
ac4199e0
DV		 10003
10004 /* Acer Aspire 4736Z */
10005 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
e85843be
KM		 10006
10007 /* Dell XPS13 HD Sandy Bridge */
10008 { 0x0116, 0x1028, 0x052e, quirk_no_pcm_pwm_enable },
10009 /* Dell XPS13 HD and XPS13 FHD Ivy Bridge */
10010 { 0x0166, 0x1028, 0x058b, quirk_no_pcm_pwm_enable },
b690e96c
JB		 10011};
10012
10013static void intel_init_quirks(struct drm_device *dev)
10014{
10015 struct pci_dev *d = dev->pdev;
10016 int i;
10017
10018 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
10019 struct intel_quirk *q = &intel_quirks[i];
10020
10021 if (d->device == q->device &&
10022 (d->subsystem_vendor == q->subsystem_vendor ||
10023 q->subsystem_vendor == PCI_ANY_ID) &&
10024 (d->subsystem_device == q->subsystem_device ||
10025 q->subsystem_device == PCI_ANY_ID))
10026 q->hook(dev);
10027 }
5f85f176
EE		 10028 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
10029 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
10030 intel_dmi_quirks[i].hook(dev);
10031 }
b690e96c
JB		 10032}
10033
9cce37f4
JB		 10034/* Disable the VGA plane that we never use */
10035static void i915_disable_vga(struct drm_device *dev)
10036{
10037 struct drm_i915_private *dev_priv = dev->dev_private;
10038 u8 sr1;
766aa1c4 10039 u32 vga_reg = i915_vgacntrl_reg(dev);
9cce37f4
JB		 10040
10041 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
3fdcf431 10042 outb(SR01, VGA_SR_INDEX);
9cce37f4
JB		 10043 sr1 = inb(VGA_SR_DATA);
10044 outb(sr1 | 1<<5, VGA_SR_DATA);
10045 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10046 udelay(300);
10047
10048 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
10049 POSTING_READ(vga_reg);
10050}
10051
6e1b4fda 10052static void i915_enable_vga_mem(struct drm_device *dev)
81b5c7bc
AW		 10053{
10054 /* Enable VGA memory on Intel HD */
10055 if (HAS_PCH_SPLIT(dev)) {
10056 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
10057 outb(inb(VGA_MSR_READ) | VGA_MSR_MEM_EN, VGA_MSR_WRITE);
10058 vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO |
10059 VGA_RSRC_LEGACY_MEM |
10060 VGA_RSRC_NORMAL_IO |
10061 VGA_RSRC_NORMAL_MEM);
10062 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10063 }
10064}
10065
6e1b4fda
VS		 10066void i915_disable_vga_mem(struct drm_device *dev)
10067{
10068 /* Disable VGA memory on Intel HD */
10069 if (HAS_PCH_SPLIT(dev)) {
10070 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
10071 outb(inb(VGA_MSR_READ) & ~VGA_MSR_MEM_EN, VGA_MSR_WRITE);
10072 vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO |
10073 VGA_RSRC_NORMAL_IO |
10074 VGA_RSRC_NORMAL_MEM);
10075 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10076 }
10077}
10078
f817586c
DV		 10079void intel_modeset_init_hw(struct drm_device *dev)
10080{
fa42e23c 10081 intel_init_power_well(dev);
0232e927 10082
a8f78b58
ED		 10083 intel_prepare_ddi(dev);
10084
f817586c
DV		 10085 intel_init_clock_gating(dev);
10086
79f5b2c7 10087 mutex_lock(&dev->struct_mutex);
8090c6b9 10088 intel_enable_gt_powersave(dev);
79f5b2c7 10089 mutex_unlock(&dev->struct_mutex);
f817586c
DV		 10090}
10091
7d708ee4
ID		 10092void intel_modeset_suspend_hw(struct drm_device *dev)
10093{
10094 intel_suspend_hw(dev);
10095}
10096
79e53945
JB		 10097void intel_modeset_init(struct drm_device *dev)
10098{
652c393a 10099 struct drm_i915_private *dev_priv = dev->dev_private;
7f1f3851 10100 int i, j, ret;
79e53945
JB		 10101
10102 drm_mode_config_init(dev);
10103
10104 dev->mode_config.min_width = 0;
10105 dev->mode_config.min_height = 0;
10106
019d96cb
DA		 10107 dev->mode_config.preferred_depth = 24;
10108 dev->mode_config.prefer_shadow = 1;
10109
e6ecefaa 10110 dev->mode_config.funcs = &intel_mode_funcs;
79e53945 10111
b690e96c
JB		 10112 intel_init_quirks(dev);
10113
1fa61106
ED		 10114 intel_init_pm(dev);
10115
e3c74757
BW		 10116 if (INTEL_INFO(dev)->num_pipes == 0)
10117 return;
10118
e70236a8
JB		 10119 intel_init_display(dev);
10120
a6c45cf0
CW		 10121 if (IS_GEN2(dev)) {
10122 dev->mode_config.max_width = 2048;
10123 dev->mode_config.max_height = 2048;
10124 } else if (IS_GEN3(dev)) {
5e4d6fa7
KP		 10125 dev->mode_config.max_width = 4096;
10126 dev->mode_config.max_height = 4096;
79e53945 10127 } else {
a6c45cf0
CW		 10128 dev->mode_config.max_width = 8192;
10129 dev->mode_config.max_height = 8192;
79e53945 10130 }
5d4545ae 10131 dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
79e53945 10132
28c97730 10133 DRM_DEBUG_KMS("%d display pipe%s available.\n",
7eb552ae
BW		 10134 INTEL_INFO(dev)->num_pipes,
10135 INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
79e53945 10136
08e2a7de 10137 for_each_pipe(i) {
79e53945 10138 intel_crtc_init(dev, i);
7f1f3851
JB		 10139 for (j = 0; j < dev_priv->num_plane; j++) {
10140 ret = intel_plane_init(dev, i, j);
10141 if (ret)
06da8da2
VS		 10142 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
10143 pipe_name(i), sprite_name(i, j), ret);
7f1f3851 10144 }
79e53945
JB		 10145 }
10146
79f689aa 10147 intel_cpu_pll_init(dev);
e72f9fbf 10148 intel_shared_dpll_init(dev);
ee7b9f93 10149
9cce37f4
JB		 10150 /* Just disable it once at startup */
10151 i915_disable_vga(dev);
79e53945 10152 intel_setup_outputs(dev);
11be49eb
CW		 10153
10154 /* Just in case the BIOS is doing something questionable. */
10155 intel_disable_fbc(dev);
2c7111db
CW		 10156}
10157
24929352
DV		 10158static void
10159intel_connector_break_all_links(struct intel_connector *connector)
10160{
10161 connector->base.dpms = DRM_MODE_DPMS_OFF;
10162 connector->base.encoder = NULL;
10163 connector->encoder->connectors_active = false;
10164 connector->encoder->base.crtc = NULL;
10165}
10166
7fad798e
DV		 10167static void intel_enable_pipe_a(struct drm_device *dev)
10168{
10169 struct intel_connector *connector;
10170 struct drm_connector *crt = NULL;
10171 struct intel_load_detect_pipe load_detect_temp;
10172
10173 /* We can't just switch on the pipe A, we need to set things up with a
10174 * proper mode and output configuration. As a gross hack, enable pipe A
10175 * by enabling the load detect pipe once. */
10176 list_for_each_entry(connector,
10177 &dev->mode_config.connector_list,
10178 base.head) {
10179 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
10180 crt = &connector->base;
10181 break;
10182 }
10183 }
10184
10185 if (!crt)
10186 return;
10187
10188 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
10189 intel_release_load_detect_pipe(crt, &load_detect_temp);
10190
652c393a 10191
7fad798e
DV		 10192}
10193
fa555837
DV		 10194static bool
10195intel_check_plane_mapping(struct intel_crtc *crtc)
10196{
7eb552ae
BW		 10197 struct drm_device *dev = crtc->base.dev;
10198 struct drm_i915_private *dev_priv = dev->dev_private;
fa555837
DV		 10199 u32 reg, val;
10200
7eb552ae 10201 if (INTEL_INFO(dev)->num_pipes == 1)
fa555837
DV		 10202 return true;
10203
10204 reg = DSPCNTR(!crtc->plane);
10205 val = I915_READ(reg);
10206
10207 if ((val & DISPLAY_PLANE_ENABLE) &&
10208 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
10209 return false;
10210
10211 return true;
10212}
10213
24929352
DV		 10214static void intel_sanitize_crtc(struct intel_crtc *crtc)
10215{
10216 struct drm_device *dev = crtc->base.dev;
10217 struct drm_i915_private *dev_priv = dev->dev_private;
fa555837 10218 u32 reg;
24929352 10219
24929352 10220 /* Clear any frame start delays used for debugging left by the BIOS */
3b117c8f 10221 reg = PIPECONF(crtc->config.cpu_transcoder);
24929352
DV		 10222 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
10223
10224 /* We need to sanitize the plane -> pipe mapping first because this will
fa555837
DV		 10225 * disable the crtc (and hence change the state) if it is wrong. Note
10226 * that gen4+ has a fixed plane -> pipe mapping. */
10227 if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
24929352
DV		 10228 struct intel_connector *connector;
10229 bool plane;
10230
24929352
DV		 10231 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
10232 crtc->base.base.id);
10233
10234 /* Pipe has the wrong plane attached and the plane is active.
10235 * Temporarily change the plane mapping and disable everything
10236 * ... */
10237 plane = crtc->plane;
10238 crtc->plane = !plane;
10239 dev_priv->display.crtc_disable(&crtc->base);
10240 crtc->plane = plane;
10241
10242 /* ... and break all links. */
10243 list_for_each_entry(connector, &dev->mode_config.connector_list,
10244 base.head) {
10245 if (connector->encoder->base.crtc != &crtc->base)
10246 continue;
10247
10248 intel_connector_break_all_links(connector);
10249 }
10250
10251 WARN_ON(crtc->active);
10252 crtc->base.enabled = false;
10253 }
24929352 10254
7fad798e
DV		 10255 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
10256 crtc->pipe == PIPE_A && !crtc->active) {
10257 /* BIOS forgot to enable pipe A, this mostly happens after
10258 * resume. Force-enable the pipe to fix this, the update_dpms
10259 * call below we restore the pipe to the right state, but leave
10260 * the required bits on. */
10261 intel_enable_pipe_a(dev);
10262 }
10263
24929352
DV		 10264 /* Adjust the state of the output pipe according to whether we
10265 * have active connectors/encoders. */
10266 intel_crtc_update_dpms(&crtc->base);
10267
10268 if (crtc->active != crtc->base.enabled) {
10269 struct intel_encoder *encoder;
10270
10271 /* This can happen either due to bugs in the get_hw_state
10272 * functions or because the pipe is force-enabled due to the
10273 * pipe A quirk. */
10274 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
10275 crtc->base.base.id,
10276 crtc->base.enabled ? "enabled" : "disabled",
10277 crtc->active ? "enabled" : "disabled");
10278
10279 crtc->base.enabled = crtc->active;
10280
10281 /* Because we only establish the connector -> encoder ->
10282 * crtc links if something is active, this means the
10283 * crtc is now deactivated. Break the links. connector
10284 * -> encoder links are only establish when things are
10285 * actually up, hence no need to break them. */
10286 WARN_ON(crtc->active);
10287
10288 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
10289 WARN_ON(encoder->connectors_active);
10290 encoder->base.crtc = NULL;
10291 }
10292 }
10293}
10294
10295static void intel_sanitize_encoder(struct intel_encoder *encoder)
10296{
10297 struct intel_connector *connector;
10298 struct drm_device *dev = encoder->base.dev;
10299
10300 /* We need to check both for a crtc link (meaning that the
10301 * encoder is active and trying to read from a pipe) and the
10302 * pipe itself being active. */
10303 bool has_active_crtc = encoder->base.crtc &&
10304 to_intel_crtc(encoder->base.crtc)->active;
10305
10306 if (encoder->connectors_active && !has_active_crtc) {
10307 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
10308 encoder->base.base.id,
10309 drm_get_encoder_name(&encoder->base));
10310
10311 /* Connector is active, but has no active pipe. This is
10312 * fallout from our resume register restoring. Disable
10313 * the encoder manually again. */
10314 if (encoder->base.crtc) {
10315 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
10316 encoder->base.base.id,
10317 drm_get_encoder_name(&encoder->base));
10318 encoder->disable(encoder);
10319 }
10320
10321 /* Inconsistent output/port/pipe state happens presumably due to
10322 * a bug in one of the get_hw_state functions. Or someplace else
10323 * in our code, like the register restore mess on resume. Clamp
10324 * things to off as a safer default. */
10325 list_for_each_entry(connector,
10326 &dev->mode_config.connector_list,
10327 base.head) {
10328 if (connector->encoder != encoder)
10329 continue;
10330
10331 intel_connector_break_all_links(connector);
10332 }
10333 }
10334 /* Enabled encoders without active connectors will be fixed in
10335 * the crtc fixup. */
10336}
10337
44cec740 10338void i915_redisable_vga(struct drm_device *dev)
0fde901f
KM		 10339{
10340 struct drm_i915_private *dev_priv = dev->dev_private;
766aa1c4 10341 u32 vga_reg = i915_vgacntrl_reg(dev);
0fde901f 10342
8dc8a27c
PZ		 10343 /* This function can be called both from intel_modeset_setup_hw_state or
10344 * at a very early point in our resume sequence, where the power well
10345 * structures are not yet restored. Since this function is at a very
10346 * paranoid "someone might have enabled VGA while we were not looking"
10347 * level, just check if the power well is enabled instead of trying to
10348 * follow the "don't touch the power well if we don't need it" policy
10349 * the rest of the driver uses. */
10350 if (HAS_POWER_WELL(dev) &&
6aedd1f5 10351 (I915_READ(HSW_PWR_WELL_DRIVER) & HSW_PWR_WELL_STATE_ENABLED) == 0)
8dc8a27c
PZ		 10352 return;
10353
0fde901f
KM		 10354 if (I915_READ(vga_reg) != VGA_DISP_DISABLE) {
10355 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
209d5211 10356 i915_disable_vga(dev);
6e1b4fda 10357 i915_disable_vga_mem(dev);
0fde901f
KM		 10358 }
10359}
10360
30e984df 10361static void intel_modeset_readout_hw_state(struct drm_device *dev)
24929352
DV		 10362{
10363 struct drm_i915_private *dev_priv = dev->dev_private;
10364 enum pipe pipe;
24929352
DV		 10365 struct intel_crtc *crtc;
10366 struct intel_encoder *encoder;
10367 struct intel_connector *connector;
5358901f 10368 int i;
24929352 10369
0e8ffe1b
DV		 10370 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10371 base.head) {
88adfff1 10372 memset(&crtc->config, 0, sizeof(crtc->config));
3b117c8f 10373
0e8ffe1b
DV		 10374 crtc->active = dev_priv->display.get_pipe_config(crtc,
10375 &crtc->config);
24929352
DV		 10376
10377 crtc->base.enabled = crtc->active;
10378
10379 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
10380 crtc->base.base.id,
10381 crtc->active ? "enabled" : "disabled");
10382 }
10383
5358901f 10384 /* FIXME: Smash this into the new shared dpll infrastructure. */
affa9354 10385 if (HAS_DDI(dev))
6441ab5f
PZ		 10386 intel_ddi_setup_hw_pll_state(dev);
10387
5358901f
DV		 10388 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
10389 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
10390
10391 pll->on = pll->get_hw_state(dev_priv, pll, &pll->hw_state);
10392 pll->active = 0;
10393 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10394 base.head) {
10395 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
10396 pll->active++;
10397 }
10398 pll->refcount = pll->active;
10399
35c95375
DV		 10400 DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
10401 pll->name, pll->refcount, pll->on);
5358901f
DV		 10402 }
10403
24929352
DV		 10404 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
10405 base.head) {
10406 pipe = 0;
10407
10408 if (encoder->get_hw_state(encoder, &pipe)) {
045ac3b5
JB		 10409 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
10410 encoder->base.crtc = &crtc->base;
510d5f2f 10411 if (encoder->get_config)
045ac3b5 10412 encoder->get_config(encoder, &crtc->config);
24929352
DV		 10413 } else {
10414 encoder->base.crtc = NULL;
10415 }
10416
10417 encoder->connectors_active = false;
10418 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
10419 encoder->base.base.id,
10420 drm_get_encoder_name(&encoder->base),
10421 encoder->base.crtc ? "enabled" : "disabled",
10422 pipe);
10423 }
10424
510d5f2f
JB		 10425 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10426 base.head) {
10427 if (!crtc->active)
10428 continue;
10429 if (dev_priv->display.get_clock)
10430 dev_priv->display.get_clock(crtc,
10431 &crtc->config);
10432 }
10433
24929352
DV		 10434 list_for_each_entry(connector, &dev->mode_config.connector_list,
10435 base.head) {
10436 if (connector->get_hw_state(connector)) {
10437 connector->base.dpms = DRM_MODE_DPMS_ON;
10438 connector->encoder->connectors_active = true;
10439 connector->base.encoder = &connector->encoder->base;
10440 } else {
10441 connector->base.dpms = DRM_MODE_DPMS_OFF;
10442 connector->base.encoder = NULL;
10443 }
10444 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
10445 connector->base.base.id,
10446 drm_get_connector_name(&connector->base),
10447 connector->base.encoder ? "enabled" : "disabled");
10448 }
30e984df
DV		 10449}
10450
10451/* Scan out the current hw modeset state, sanitizes it and maps it into the drm
10452 * and i915 state tracking structures. */
10453void intel_modeset_setup_hw_state(struct drm_device *dev,
10454 bool force_restore)
10455{
10456 struct drm_i915_private *dev_priv = dev->dev_private;
10457 enum pipe pipe;
10458 struct drm_plane *plane;
10459 struct intel_crtc *crtc;
10460 struct intel_encoder *encoder;
35c95375 10461 int i;
30e984df
DV		 10462
10463 intel_modeset_readout_hw_state(dev);
24929352 10464
babea61d
JB		 10465 /*
10466 * Now that we have the config, copy it to each CRTC struct
10467 * Note that this could go away if we move to using crtc_config
10468 * checking everywhere.
10469 */
10470 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10471 base.head) {
10472 if (crtc->active && i915_fastboot) {
10473 intel_crtc_mode_from_pipe_config(crtc, &crtc->config);
10474
10475 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
10476 crtc->base.base.id);
10477 drm_mode_debug_printmodeline(&crtc->base.mode);
10478 }
10479 }
10480
24929352
DV		 10481 /* HW state is read out, now we need to sanitize this mess. */
10482 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
10483 base.head) {
10484 intel_sanitize_encoder(encoder);
10485 }
10486
10487 for_each_pipe(pipe) {
10488 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
10489 intel_sanitize_crtc(crtc);
c0b03411 10490 intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]");
24929352 10491 }
9a935856 10492
35c95375
DV		 10493 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
10494 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
10495
10496 if (!pll->on || pll->active)
10497 continue;
10498
10499 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name);
10500
10501 pll->disable(dev_priv, pll);
10502 pll->on = false;
10503 }
10504
45e2b5f6 10505 if (force_restore) {
f30da187
DV		 10506 /*
10507 * We need to use raw interfaces for restoring state to avoid
10508 * checking (bogus) intermediate states.
10509 */
45e2b5f6 10510 for_each_pipe(pipe) {
b5644d05
JB		 10511 struct drm_crtc *crtc =
10512 dev_priv->pipe_to_crtc_mapping[pipe];
f30da187
DV		 10513
10514 __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
10515 crtc->fb);
45e2b5f6 10516 }
b5644d05
JB		 10517 list_for_each_entry(plane, &dev->mode_config.plane_list, head)
10518 intel_plane_restore(plane);
0fde901f
KM		 10519
10520 i915_redisable_vga(dev);
45e2b5f6
DV		 10521 } else {
10522 intel_modeset_update_staged_output_state(dev);
10523 }
8af6cf88
DV		 10524
10525 intel_modeset_check_state(dev);
2e938892
DV		 10526
10527 drm_mode_config_reset(dev);
2c7111db
CW		 10528}
10529
10530void intel_modeset_gem_init(struct drm_device *dev)
10531{
1833b134 10532 intel_modeset_init_hw(dev);
02e792fb
DV		 10533
10534 intel_setup_overlay(dev);
24929352 10535
45e2b5f6 10536 intel_modeset_setup_hw_state(dev, false);
79e53945
JB		 10537}
10538
10539void intel_modeset_cleanup(struct drm_device *dev)
10540{
652c393a
JB		 10541 struct drm_i915_private *dev_priv = dev->dev_private;
10542 struct drm_crtc *crtc;
652c393a 10543
fd0c0642
DV		 10544 /*
10545 * Interrupts and polling as the first thing to avoid creating havoc.
10546 * Too much stuff here (turning of rps, connectors, ...) would
10547 * experience fancy races otherwise.
10548 */
10549 drm_irq_uninstall(dev);
10550 cancel_work_sync(&dev_priv->hotplug_work);
10551 /*
10552 * Due to the hpd irq storm handling the hotplug work can re-arm the
10553 * poll handlers. Hence disable polling after hpd handling is shut down.
10554 */
f87ea761 10555 drm_kms_helper_poll_fini(dev);
fd0c0642 10556
652c393a
JB		 10557 mutex_lock(&dev->struct_mutex);
10558
723bfd70
JB		 10559 intel_unregister_dsm_handler();
10560
652c393a
JB		 10561 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
10562 /* Skip inactive CRTCs */
10563 if (!crtc->fb)
10564 continue;
10565
3dec0095 10566 intel_increase_pllclock(crtc);
652c393a
JB		 10567 }
10568
973d04f9 10569 intel_disable_fbc(dev);
e70236a8 10570
6e1b4fda 10571 i915_enable_vga_mem(dev);
81b5c7bc 10572
8090c6b9 10573 intel_disable_gt_powersave(dev);
0cdab21f 10574
930ebb46
DV		 10575 ironlake_teardown_rc6(dev);
10576
69341a5e
KH		 10577 mutex_unlock(&dev->struct_mutex);
10578
1630fe75
CW		 10579 /* flush any delayed tasks or pending work */
10580 flush_scheduled_work();
10581
dc652f90
JN		 10582 /* destroy backlight, if any, before the connectors */
10583 intel_panel_destroy_backlight(dev);
10584
79e53945 10585 drm_mode_config_cleanup(dev);
4d7bb011
DV		 10586
10587 intel_cleanup_overlay(dev);
79e53945
JB		 10588}
10589
f1c79df3
ZW		 10590/*
10591 * Return which encoder is currently attached for connector.
10592 */
df0e9248 10593struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
79e53945 10594{
df0e9248
CW		 10595 return &intel_attached_encoder(connector)->base;
10596}
f1c79df3 10597
df0e9248
CW		 10598void intel_connector_attach_encoder(struct intel_connector *connector,
10599 struct intel_encoder *encoder)
10600{
10601 connector->encoder = encoder;
10602 drm_mode_connector_attach_encoder(&connector->base,
10603 &encoder->base);
79e53945 10604}
28d52043
DA		 10605
10606/*
10607 * set vga decode state - true == enable VGA decode
10608 */
10609int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
10610{
10611 struct drm_i915_private *dev_priv = dev->dev_private;
10612 u16 gmch_ctrl;
10613
10614 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
10615 if (state)
10616 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
10617 else
10618 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
10619 pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
10620 return 0;
10621}
c4a1d9e4 10622
c4a1d9e4 10623struct intel_display_error_state {
ff57f1b0
PZ		 10624
10625 u32 power_well_driver;
10626
63b66e5b
CW		 10627 int num_transcoders;
10628
c4a1d9e4
CW		 10629 struct intel_cursor_error_state {
10630 u32 control;
10631 u32 position;
10632 u32 base;
10633 u32 size;
52331309 10634 } cursor[I915_MAX_PIPES];
c4a1d9e4
CW		 10635
10636 struct intel_pipe_error_state {
c4a1d9e4 10637 u32 source;
52331309 10638 } pipe[I915_MAX_PIPES];
c4a1d9e4
CW		 10639
10640 struct intel_plane_error_state {
10641 u32 control;
10642 u32 stride;
10643 u32 size;
10644 u32 pos;
10645 u32 addr;
10646 u32 surface;
10647 u32 tile_offset;
52331309 10648 } plane[I915_MAX_PIPES];
63b66e5b
CW		 10649
10650 struct intel_transcoder_error_state {
10651 enum transcoder cpu_transcoder;
10652
10653 u32 conf;
10654
10655 u32 htotal;
10656 u32 hblank;
10657 u32 hsync;
10658 u32 vtotal;
10659 u32 vblank;
10660 u32 vsync;
10661 } transcoder[4];
c4a1d9e4
CW		 10662};
10663
10664struct intel_display_error_state *
10665intel_display_capture_error_state(struct drm_device *dev)
10666{
0206e353 10667 drm_i915_private_t *dev_priv = dev->dev_private;
c4a1d9e4 10668 struct intel_display_error_state *error;
63b66e5b
CW		 10669 int transcoders[] = {
10670 TRANSCODER_A,
10671 TRANSCODER_B,
10672 TRANSCODER_C,
10673 TRANSCODER_EDP,
10674 };
c4a1d9e4
CW		 10675 int i;
10676
63b66e5b
CW		 10677 if (INTEL_INFO(dev)->num_pipes == 0)
10678 return NULL;
10679
c4a1d9e4
CW		 10680 error = kmalloc(sizeof(*error), GFP_ATOMIC);
10681 if (error == NULL)
10682 return NULL;
10683
ff57f1b0
PZ		 10684 if (HAS_POWER_WELL(dev))
10685 error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
10686
52331309 10687 for_each_pipe(i) {
a18c4c3d
PZ		 10688 if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
10689 error->cursor[i].control = I915_READ(CURCNTR(i));
10690 error->cursor[i].position = I915_READ(CURPOS(i));
10691 error->cursor[i].base = I915_READ(CURBASE(i));
10692 } else {
10693 error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
10694 error->cursor[i].position = I915_READ(CURPOS_IVB(i));
10695 error->cursor[i].base = I915_READ(CURBASE_IVB(i));
10696 }
c4a1d9e4
CW		 10697
10698 error->plane[i].control = I915_READ(DSPCNTR(i));
10699 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
80ca378b 10700 if (INTEL_INFO(dev)->gen <= 3) {
51889b35 10701 error->plane[i].size = I915_READ(DSPSIZE(i));
80ca378b
PZ		 10702 error->plane[i].pos = I915_READ(DSPPOS(i));
10703 }
ca291363
PZ		 10704 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
10705 error->plane[i].addr = I915_READ(DSPADDR(i));
c4a1d9e4
CW		 10706 if (INTEL_INFO(dev)->gen >= 4) {
10707 error->plane[i].surface = I915_READ(DSPSURF(i));
10708 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
10709 }
10710
c4a1d9e4 10711 error->pipe[i].source = I915_READ(PIPESRC(i));
63b66e5b
CW		 10712 }
10713
10714 error->num_transcoders = INTEL_INFO(dev)->num_pipes;
10715 if (HAS_DDI(dev_priv->dev))
10716 error->num_transcoders++; /* Account for eDP. */
10717
10718 for (i = 0; i < error->num_transcoders; i++) {
10719 enum transcoder cpu_transcoder = transcoders[i];
10720
10721 error->transcoder[i].cpu_transcoder = cpu_transcoder;
10722
10723 error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder));
10724 error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
10725 error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder));
10726 error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder));
10727 error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
10728 error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder));
10729 error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder));
c4a1d9e4
CW		 10730 }
10731
12d217c7
PZ		 10732 /* In the code above we read the registers without checking if the power
10733 * well was on, so here we have to clear the FPGA_DBG_RM_NOCLAIM bit to
10734 * prevent the next I915_WRITE from detecting it and printing an error
10735 * message. */
907b28c5 10736 intel_uncore_clear_errors(dev);
12d217c7 10737
c4a1d9e4
CW		 10738 return error;
10739}
10740
edc3d884
MK		 10741#define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
10742
c4a1d9e4 10743void
edc3d884 10744intel_display_print_error_state(struct drm_i915_error_state_buf *m,
c4a1d9e4
CW		 10745 struct drm_device *dev,
10746 struct intel_display_error_state *error)
10747{
10748 int i;
10749
63b66e5b
CW		 10750 if (!error)
10751 return;
10752
edc3d884 10753 err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
ff57f1b0 10754 if (HAS_POWER_WELL(dev))
edc3d884 10755 err_printf(m, "PWR_WELL_CTL2: %08x\n",
ff57f1b0 10756 error->power_well_driver);
52331309 10757 for_each_pipe(i) {
edc3d884 10758 err_printf(m, "Pipe [%d]:\n", i);
edc3d884 10759 err_printf(m, " SRC: %08x\n", error->pipe[i].source);
edc3d884
MK		 10760
10761 err_printf(m, "Plane [%d]:\n", i);
10762 err_printf(m, " CNTR: %08x\n", error->plane[i].control);
10763 err_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
80ca378b 10764 if (INTEL_INFO(dev)->gen <= 3) {
edc3d884
MK		 10765 err_printf(m, " SIZE: %08x\n", error->plane[i].size);
10766 err_printf(m, " POS: %08x\n", error->plane[i].pos);
80ca378b 10767 }
4b71a570 10768 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
edc3d884 10769 err_printf(m, " ADDR: %08x\n", error->plane[i].addr);
c4a1d9e4 10770 if (INTEL_INFO(dev)->gen >= 4) {
edc3d884
MK		 10771 err_printf(m, " SURF: %08x\n", error->plane[i].surface);
10772 err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
c4a1d9e4
CW		 10773 }
10774
edc3d884
MK		 10775 err_printf(m, "Cursor [%d]:\n", i);
10776 err_printf(m, " CNTR: %08x\n", error->cursor[i].control);
10777 err_printf(m, " POS: %08x\n", error->cursor[i].position);
10778 err_printf(m, " BASE: %08x\n", error->cursor[i].base);
c4a1d9e4 10779 }
63b66e5b
CW		 10780
10781 for (i = 0; i < error->num_transcoders; i++) {
10782 err_printf(m, " CPU transcoder: %c\n",
10783 transcoder_name(error->transcoder[i].cpu_transcoder));
10784 err_printf(m, " CONF: %08x\n", error->transcoder[i].conf);
10785 err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal);
10786 err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank);
10787 err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync);
10788 err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal);
10789 err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank);
10790 err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync);
10791 }
c4a1d9e4 10792}
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