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drm/i915; Preallocate the lazy request
[deliverable/linux.git] / drivers / gpu / drm / i915 / intel_display.c
CommitLineData
79e53945
JB		 1/*
2 * Copyright © 2006-2007 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Eric Anholt <eric@anholt.net>
25 */
26
618563e3 27#include <linux/dmi.h>
c1c7af60
JB		 28#include <linux/module.h>
29#include <linux/input.h>
79e53945 30#include <linux/i2c.h>
7662c8bd 31#include <linux/kernel.h>
5a0e3ad6 32#include <linux/slab.h>
9cce37f4 33#include <linux/vgaarb.h>
e0dac65e 34#include <drm/drm_edid.h>
760285e7 35#include <drm/drmP.h>
79e53945 36#include "intel_drv.h"
760285e7 37#include <drm/i915_drm.h>
79e53945 38#include "i915_drv.h"
e5510fac 39#include "i915_trace.h"
760285e7
DH		 40#include <drm/drm_dp_helper.h>
41#include <drm/drm_crtc_helper.h>
c0f372b3 42#include <linux/dma_remapping.h>
79e53945 43
0206e353 44bool intel_pipe_has_type(struct drm_crtc *crtc, int type);
3dec0095 45static void intel_increase_pllclock(struct drm_crtc *crtc);
6b383a7f 46static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on);
79e53945 47
f1f644dc
JB		 48static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
49 struct intel_crtc_config *pipe_config);
50static void ironlake_crtc_clock_get(struct intel_crtc *crtc,
51 struct intel_crtc_config *pipe_config);
52
e7457a9a
DL		 53static int intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
54 int x, int y, struct drm_framebuffer *old_fb);
55
56
79e53945 57typedef struct {
0206e353 58 int min, max;
79e53945
JB		 59} intel_range_t;
60
61typedef struct {
0206e353
AJ		 62 int dot_limit;
63 int p2_slow, p2_fast;
79e53945
JB		 64} intel_p2_t;
65
d4906093
ML		 66typedef struct intel_limit intel_limit_t;
67struct intel_limit {
0206e353
AJ		 68 intel_range_t dot, vco, n, m, m1, m2, p, p1;
69 intel_p2_t p2;
d4906093 70};
79e53945 71
d2acd215
DV		 72int
73intel_pch_rawclk(struct drm_device *dev)
74{
75 struct drm_i915_private *dev_priv = dev->dev_private;
76
77 WARN_ON(!HAS_PCH_SPLIT(dev));
78
79 return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK;
80}
81
021357ac
CW		 82static inline u32 /* units of 100MHz */
83intel_fdi_link_freq(struct drm_device *dev)
84{
8b99e68c
CW		 85 if (IS_GEN5(dev)) {
86 struct drm_i915_private *dev_priv = dev->dev_private;
87 return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2;
88 } else
89 return 27;
021357ac
CW		 90}
91
5d536e28 92static const intel_limit_t intel_limits_i8xx_dac = {
0206e353
AJ		 93 .dot = { .min = 25000, .max = 350000 },
94 .vco = { .min = 930000, .max = 1400000 },
95 .n = { .min = 3, .max = 16 },
96 .m = { .min = 96, .max = 140 },
97 .m1 = { .min = 18, .max = 26 },
98 .m2 = { .min = 6, .max = 16 },
99 .p = { .min = 4, .max = 128 },
100 .p1 = { .min = 2, .max = 33 },
273e27ca
EA		 101 .p2 = { .dot_limit = 165000,
102 .p2_slow = 4, .p2_fast = 2 },
e4b36699
KP		 103};
104
5d536e28
DV		 105static const intel_limit_t intel_limits_i8xx_dvo = {
106 .dot = { .min = 25000, .max = 350000 },
107 .vco = { .min = 930000, .max = 1400000 },
108 .n = { .min = 3, .max = 16 },
109 .m = { .min = 96, .max = 140 },
110 .m1 = { .min = 18, .max = 26 },
111 .m2 = { .min = 6, .max = 16 },
112 .p = { .min = 4, .max = 128 },
113 .p1 = { .min = 2, .max = 33 },
114 .p2 = { .dot_limit = 165000,
115 .p2_slow = 4, .p2_fast = 4 },
116};
117
e4b36699 118static const intel_limit_t intel_limits_i8xx_lvds = {
0206e353
AJ		 119 .dot = { .min = 25000, .max = 350000 },
120 .vco = { .min = 930000, .max = 1400000 },
121 .n = { .min = 3, .max = 16 },
122 .m = { .min = 96, .max = 140 },
123 .m1 = { .min = 18, .max = 26 },
124 .m2 = { .min = 6, .max = 16 },
125 .p = { .min = 4, .max = 128 },
126 .p1 = { .min = 1, .max = 6 },
273e27ca
EA		 127 .p2 = { .dot_limit = 165000,
128 .p2_slow = 14, .p2_fast = 7 },
e4b36699 129};
273e27ca 130
e4b36699 131static const intel_limit_t intel_limits_i9xx_sdvo = {
0206e353
AJ		 132 .dot = { .min = 20000, .max = 400000 },
133 .vco = { .min = 1400000, .max = 2800000 },
134 .n = { .min = 1, .max = 6 },
135 .m = { .min = 70, .max = 120 },
4f7dfb67
PJ		 136 .m1 = { .min = 8, .max = 18 },
137 .m2 = { .min = 3, .max = 7 },
0206e353
AJ		 138 .p = { .min = 5, .max = 80 },
139 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 140 .p2 = { .dot_limit = 200000,
141 .p2_slow = 10, .p2_fast = 5 },
e4b36699
KP		 142};
143
144static const intel_limit_t intel_limits_i9xx_lvds = {
0206e353
AJ		 145 .dot = { .min = 20000, .max = 400000 },
146 .vco = { .min = 1400000, .max = 2800000 },
147 .n = { .min = 1, .max = 6 },
148 .m = { .min = 70, .max = 120 },
53a7d2d1
PJ		 149 .m1 = { .min = 8, .max = 18 },
150 .m2 = { .min = 3, .max = 7 },
0206e353
AJ		 151 .p = { .min = 7, .max = 98 },
152 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 153 .p2 = { .dot_limit = 112000,
154 .p2_slow = 14, .p2_fast = 7 },
e4b36699
KP		 155};
156
273e27ca 157
e4b36699 158static const intel_limit_t intel_limits_g4x_sdvo = {
273e27ca
EA		 159 .dot = { .min = 25000, .max = 270000 },
160 .vco = { .min = 1750000, .max = 3500000},
161 .n = { .min = 1, .max = 4 },
162 .m = { .min = 104, .max = 138 },
163 .m1 = { .min = 17, .max = 23 },
164 .m2 = { .min = 5, .max = 11 },
165 .p = { .min = 10, .max = 30 },
166 .p1 = { .min = 1, .max = 3},
167 .p2 = { .dot_limit = 270000,
168 .p2_slow = 10,
169 .p2_fast = 10
044c7c41 170 },
e4b36699
KP		 171};
172
173static const intel_limit_t intel_limits_g4x_hdmi = {
273e27ca
EA		 174 .dot = { .min = 22000, .max = 400000 },
175 .vco = { .min = 1750000, .max = 3500000},
176 .n = { .min = 1, .max = 4 },
177 .m = { .min = 104, .max = 138 },
178 .m1 = { .min = 16, .max = 23 },
179 .m2 = { .min = 5, .max = 11 },
180 .p = { .min = 5, .max = 80 },
181 .p1 = { .min = 1, .max = 8},
182 .p2 = { .dot_limit = 165000,
183 .p2_slow = 10, .p2_fast = 5 },
e4b36699
KP		 184};
185
186static const intel_limit_t intel_limits_g4x_single_channel_lvds = {
273e27ca
EA		 187 .dot = { .min = 20000, .max = 115000 },
188 .vco = { .min = 1750000, .max = 3500000 },
189 .n = { .min = 1, .max = 3 },
190 .m = { .min = 104, .max = 138 },
191 .m1 = { .min = 17, .max = 23 },
192 .m2 = { .min = 5, .max = 11 },
193 .p = { .min = 28, .max = 112 },
194 .p1 = { .min = 2, .max = 8 },
195 .p2 = { .dot_limit = 0,
196 .p2_slow = 14, .p2_fast = 14
044c7c41 197 },
e4b36699
KP		 198};
199
200static const intel_limit_t intel_limits_g4x_dual_channel_lvds = {
273e27ca
EA		 201 .dot = { .min = 80000, .max = 224000 },
202 .vco = { .min = 1750000, .max = 3500000 },
203 .n = { .min = 1, .max = 3 },
204 .m = { .min = 104, .max = 138 },
205 .m1 = { .min = 17, .max = 23 },
206 .m2 = { .min = 5, .max = 11 },
207 .p = { .min = 14, .max = 42 },
208 .p1 = { .min = 2, .max = 6 },
209 .p2 = { .dot_limit = 0,
210 .p2_slow = 7, .p2_fast = 7
044c7c41 211 },
e4b36699
KP		 212};
213
f2b115e6 214static const intel_limit_t intel_limits_pineview_sdvo = {
0206e353
AJ		 215 .dot = { .min = 20000, .max = 400000},
216 .vco = { .min = 1700000, .max = 3500000 },
273e27ca 217 /* Pineview's Ncounter is a ring counter */
0206e353
AJ		 218 .n = { .min = 3, .max = 6 },
219 .m = { .min = 2, .max = 256 },
273e27ca 220 /* Pineview only has one combined m divider, which we treat as m2. */
0206e353
AJ		 221 .m1 = { .min = 0, .max = 0 },
222 .m2 = { .min = 0, .max = 254 },
223 .p = { .min = 5, .max = 80 },
224 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 225 .p2 = { .dot_limit = 200000,
226 .p2_slow = 10, .p2_fast = 5 },
e4b36699
KP		 227};
228
f2b115e6 229static const intel_limit_t intel_limits_pineview_lvds = {
0206e353
AJ		 230 .dot = { .min = 20000, .max = 400000 },
231 .vco = { .min = 1700000, .max = 3500000 },
232 .n = { .min = 3, .max = 6 },
233 .m = { .min = 2, .max = 256 },
234 .m1 = { .min = 0, .max = 0 },
235 .m2 = { .min = 0, .max = 254 },
236 .p = { .min = 7, .max = 112 },
237 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 238 .p2 = { .dot_limit = 112000,
239 .p2_slow = 14, .p2_fast = 14 },
e4b36699
KP		 240};
241
273e27ca
EA		 242/* Ironlake / Sandybridge
243 *
244 * We calculate clock using (register_value + 2) for N/M1/M2, so here
245 * the range value for them is (actual_value - 2).
246 */
b91ad0ec 247static const intel_limit_t intel_limits_ironlake_dac = {
273e27ca
EA		 248 .dot = { .min = 25000, .max = 350000 },
249 .vco = { .min = 1760000, .max = 3510000 },
250 .n = { .min = 1, .max = 5 },
251 .m = { .min = 79, .max = 127 },
252 .m1 = { .min = 12, .max = 22 },
253 .m2 = { .min = 5, .max = 9 },
254 .p = { .min = 5, .max = 80 },
255 .p1 = { .min = 1, .max = 8 },
256 .p2 = { .dot_limit = 225000,
257 .p2_slow = 10, .p2_fast = 5 },
e4b36699
KP		 258};
259
b91ad0ec 260static const intel_limit_t intel_limits_ironlake_single_lvds = {
273e27ca
EA		 261 .dot = { .min = 25000, .max = 350000 },
262 .vco = { .min = 1760000, .max = 3510000 },
263 .n = { .min = 1, .max = 3 },
264 .m = { .min = 79, .max = 118 },
265 .m1 = { .min = 12, .max = 22 },
266 .m2 = { .min = 5, .max = 9 },
267 .p = { .min = 28, .max = 112 },
268 .p1 = { .min = 2, .max = 8 },
269 .p2 = { .dot_limit = 225000,
270 .p2_slow = 14, .p2_fast = 14 },
b91ad0ec
ZW		 271};
272
273static const intel_limit_t intel_limits_ironlake_dual_lvds = {
273e27ca
EA		 274 .dot = { .min = 25000, .max = 350000 },
275 .vco = { .min = 1760000, .max = 3510000 },
276 .n = { .min = 1, .max = 3 },
277 .m = { .min = 79, .max = 127 },
278 .m1 = { .min = 12, .max = 22 },
279 .m2 = { .min = 5, .max = 9 },
280 .p = { .min = 14, .max = 56 },
281 .p1 = { .min = 2, .max = 8 },
282 .p2 = { .dot_limit = 225000,
283 .p2_slow = 7, .p2_fast = 7 },
b91ad0ec
ZW		 284};
285
273e27ca 286/* LVDS 100mhz refclk limits. */
b91ad0ec 287static const intel_limit_t intel_limits_ironlake_single_lvds_100m = {
273e27ca
EA		 288 .dot = { .min = 25000, .max = 350000 },
289 .vco = { .min = 1760000, .max = 3510000 },
290 .n = { .min = 1, .max = 2 },
291 .m = { .min = 79, .max = 126 },
292 .m1 = { .min = 12, .max = 22 },
293 .m2 = { .min = 5, .max = 9 },
294 .p = { .min = 28, .max = 112 },
0206e353 295 .p1 = { .min = 2, .max = 8 },
273e27ca
EA		 296 .p2 = { .dot_limit = 225000,
297 .p2_slow = 14, .p2_fast = 14 },
b91ad0ec
ZW		 298};
299
300static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = {
273e27ca
EA		 301 .dot = { .min = 25000, .max = 350000 },
302 .vco = { .min = 1760000, .max = 3510000 },
303 .n = { .min = 1, .max = 3 },
304 .m = { .min = 79, .max = 126 },
305 .m1 = { .min = 12, .max = 22 },
306 .m2 = { .min = 5, .max = 9 },
307 .p = { .min = 14, .max = 42 },
0206e353 308 .p1 = { .min = 2, .max = 6 },
273e27ca
EA		 309 .p2 = { .dot_limit = 225000,
310 .p2_slow = 7, .p2_fast = 7 },
4547668a
ZY		 311};
312
a0c4da24
JB		 313static const intel_limit_t intel_limits_vlv_dac = {
314 .dot = { .min = 25000, .max = 270000 },
315 .vco = { .min = 4000000, .max = 6000000 },
316 .n = { .min = 1, .max = 7 },
317 .m = { .min = 22, .max = 450 }, /* guess */
318 .m1 = { .min = 2, .max = 3 },
319 .m2 = { .min = 11, .max = 156 },
320 .p = { .min = 10, .max = 30 },
75e53986 321 .p1 = { .min = 1, .max = 3 },
a0c4da24
JB		 322 .p2 = { .dot_limit = 270000,
323 .p2_slow = 2, .p2_fast = 20 },
a0c4da24
JB		 324};
325
326static const intel_limit_t intel_limits_vlv_hdmi = {
75e53986
DV		 327 .dot = { .min = 25000, .max = 270000 },
328 .vco = { .min = 4000000, .max = 6000000 },
a0c4da24
JB		 329 .n = { .min = 1, .max = 7 },
330 .m = { .min = 60, .max = 300 }, /* guess */
331 .m1 = { .min = 2, .max = 3 },
332 .m2 = { .min = 11, .max = 156 },
333 .p = { .min = 10, .max = 30 },
334 .p1 = { .min = 2, .max = 3 },
335 .p2 = { .dot_limit = 270000,
336 .p2_slow = 2, .p2_fast = 20 },
a0c4da24
JB		 337};
338
1b894b59
CW		 339static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
340 int refclk)
2c07245f 341{
b91ad0ec 342 struct drm_device *dev = crtc->dev;
2c07245f 343 const intel_limit_t *limit;
b91ad0ec
ZW		 344
345 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
1974cad0 346 if (intel_is_dual_link_lvds(dev)) {
1b894b59 347 if (refclk == 100000)
b91ad0ec
ZW		 348 limit = &intel_limits_ironlake_dual_lvds_100m;
349 else
350 limit = &intel_limits_ironlake_dual_lvds;
351 } else {
1b894b59 352 if (refclk == 100000)
b91ad0ec
ZW		 353 limit = &intel_limits_ironlake_single_lvds_100m;
354 else
355 limit = &intel_limits_ironlake_single_lvds;
356 }
c6bb3538 357 } else
b91ad0ec 358 limit = &intel_limits_ironlake_dac;
2c07245f
ZW		 359
360 return limit;
361}
362
044c7c41
ML		 363static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
364{
365 struct drm_device *dev = crtc->dev;
044c7c41
ML		 366 const intel_limit_t *limit;
367
368 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
1974cad0 369 if (intel_is_dual_link_lvds(dev))
e4b36699 370 limit = &intel_limits_g4x_dual_channel_lvds;
044c7c41 371 else
e4b36699 372 limit = &intel_limits_g4x_single_channel_lvds;
044c7c41
ML		 373 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
374 intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
e4b36699 375 limit = &intel_limits_g4x_hdmi;
044c7c41 376 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
e4b36699 377 limit = &intel_limits_g4x_sdvo;
044c7c41 378 } else /* The option is for other outputs */
e4b36699 379 limit = &intel_limits_i9xx_sdvo;
044c7c41
ML		 380
381 return limit;
382}
383
1b894b59 384static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
79e53945
JB		 385{
386 struct drm_device *dev = crtc->dev;
387 const intel_limit_t *limit;
388
bad720ff 389 if (HAS_PCH_SPLIT(dev))
1b894b59 390 limit = intel_ironlake_limit(crtc, refclk);
2c07245f 391 else if (IS_G4X(dev)) {
044c7c41 392 limit = intel_g4x_limit(crtc);
f2b115e6 393 } else if (IS_PINEVIEW(dev)) {
2177832f 394 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
f2b115e6 395 limit = &intel_limits_pineview_lvds;
2177832f 396 else
f2b115e6 397 limit = &intel_limits_pineview_sdvo;
a0c4da24
JB		 398 } else if (IS_VALLEYVIEW(dev)) {
399 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG))
400 limit = &intel_limits_vlv_dac;
a0c4da24 401 else
65ce4bf5 402 limit = &intel_limits_vlv_hdmi;
a6c45cf0
CW		 403 } else if (!IS_GEN2(dev)) {
404 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
405 limit = &intel_limits_i9xx_lvds;
406 else
407 limit = &intel_limits_i9xx_sdvo;
79e53945
JB		 408 } else {
409 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
e4b36699 410 limit = &intel_limits_i8xx_lvds;
5d536e28 411 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO))
e4b36699 412 limit = &intel_limits_i8xx_dvo;
5d536e28
DV		 413 else
414 limit = &intel_limits_i8xx_dac;
79e53945
JB		 415 }
416 return limit;
417}
418
f2b115e6
AJ		 419/* m1 is reserved as 0 in Pineview, n is a ring counter */
420static void pineview_clock(int refclk, intel_clock_t *clock)
79e53945 421{
2177832f
SL		 422 clock->m = clock->m2 + 2;
423 clock->p = clock->p1 * clock->p2;
424 clock->vco = refclk * clock->m / clock->n;
425 clock->dot = clock->vco / clock->p;
426}
427
7429e9d4
DV		 428static uint32_t i9xx_dpll_compute_m(struct dpll *dpll)
429{
430 return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
431}
432
ac58c3f0 433static void i9xx_clock(int refclk, intel_clock_t *clock)
2177832f 434{
7429e9d4 435 clock->m = i9xx_dpll_compute_m(clock);
79e53945
JB		 436 clock->p = clock->p1 * clock->p2;
437 clock->vco = refclk * clock->m / (clock->n + 2);
438 clock->dot = clock->vco / clock->p;
439}
440
79e53945
JB		 441/**
442 * Returns whether any output on the specified pipe is of the specified type
443 */
4ef69c7a 444bool intel_pipe_has_type(struct drm_crtc *crtc, int type)
79e53945 445{
4ef69c7a 446 struct drm_device *dev = crtc->dev;
4ef69c7a
CW		 447 struct intel_encoder *encoder;
448
6c2b7c12
DV		 449 for_each_encoder_on_crtc(dev, crtc, encoder)
450 if (encoder->type == type)
4ef69c7a
CW		 451 return true;
452
453 return false;
79e53945
JB		 454}
455
7c04d1d9 456#define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
79e53945
JB		 457/**
458 * Returns whether the given set of divisors are valid for a given refclk with
459 * the given connectors.
460 */
461
1b894b59
CW		 462static bool intel_PLL_is_valid(struct drm_device *dev,
463 const intel_limit_t *limit,
464 const intel_clock_t *clock)
79e53945 465{
79e53945 466 if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
0206e353 467 INTELPllInvalid("p1 out of range\n");
79e53945 468 if (clock->p < limit->p.min || limit->p.max < clock->p)
0206e353 469 INTELPllInvalid("p out of range\n");
79e53945 470 if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
0206e353 471 INTELPllInvalid("m2 out of range\n");
79e53945 472 if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
0206e353 473 INTELPllInvalid("m1 out of range\n");
f2b115e6 474 if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev))
0206e353 475 INTELPllInvalid("m1 <= m2\n");
79e53945 476 if (clock->m < limit->m.min || limit->m.max < clock->m)
0206e353 477 INTELPllInvalid("m out of range\n");
79e53945 478 if (clock->n < limit->n.min || limit->n.max < clock->n)
0206e353 479 INTELPllInvalid("n out of range\n");
79e53945 480 if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
0206e353 481 INTELPllInvalid("vco out of range\n");
79e53945
JB		 482 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
483 * connector, etc., rather than just a single range.
484 */
485 if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
0206e353 486 INTELPllInvalid("dot out of range\n");
79e53945
JB		 487
488 return true;
489}
490
d4906093 491static bool
ee9300bb 492i9xx_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
cec2f356
SP		 493 int target, int refclk, intel_clock_t *match_clock,
494 intel_clock_t *best_clock)
79e53945
JB		 495{
496 struct drm_device *dev = crtc->dev;
79e53945 497 intel_clock_t clock;
79e53945
JB		 498 int err = target;
499
a210b028 500 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
79e53945 501 /*
a210b028
DV		 502 * For LVDS just rely on its current settings for dual-channel.
503 * We haven't figured out how to reliably set up different
504 * single/dual channel state, if we even can.
79e53945 505 */
1974cad0 506 if (intel_is_dual_link_lvds(dev))
79e53945
JB		 507 clock.p2 = limit->p2.p2_fast;
508 else
509 clock.p2 = limit->p2.p2_slow;
510 } else {
511 if (target < limit->p2.dot_limit)
512 clock.p2 = limit->p2.p2_slow;
513 else
514 clock.p2 = limit->p2.p2_fast;
515 }
516
0206e353 517 memset(best_clock, 0, sizeof(*best_clock));
79e53945 518
42158660
ZY		 519 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
520 clock.m1++) {
521 for (clock.m2 = limit->m2.min;
522 clock.m2 <= limit->m2.max; clock.m2++) {
c0efc387 523 if (clock.m2 >= clock.m1)
42158660
ZY		 524 break;
525 for (clock.n = limit->n.min;
526 clock.n <= limit->n.max; clock.n++) {
527 for (clock.p1 = limit->p1.min;
528 clock.p1 <= limit->p1.max; clock.p1++) {
79e53945
JB		 529 int this_err;
530
ac58c3f0
DV		 531 i9xx_clock(refclk, &clock);
532 if (!intel_PLL_is_valid(dev, limit,
533 &clock))
534 continue;
535 if (match_clock &&
536 clock.p != match_clock->p)
537 continue;
538
539 this_err = abs(clock.dot - target);
540 if (this_err < err) {
541 *best_clock = clock;
542 err = this_err;
543 }
544 }
545 }
546 }
547 }
548
549 return (err != target);
550}
551
552static bool
ee9300bb
DV		 553pnv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
554 int target, int refclk, intel_clock_t *match_clock,
555 intel_clock_t *best_clock)
79e53945
JB		 556{
557 struct drm_device *dev = crtc->dev;
79e53945 558 intel_clock_t clock;
79e53945
JB		 559 int err = target;
560
a210b028 561 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
79e53945 562 /*
a210b028
DV		 563 * For LVDS just rely on its current settings for dual-channel.
564 * We haven't figured out how to reliably set up different
565 * single/dual channel state, if we even can.
79e53945 566 */
1974cad0 567 if (intel_is_dual_link_lvds(dev))
79e53945
JB		 568 clock.p2 = limit->p2.p2_fast;
569 else
570 clock.p2 = limit->p2.p2_slow;
571 } else {
572 if (target < limit->p2.dot_limit)
573 clock.p2 = limit->p2.p2_slow;
574 else
575 clock.p2 = limit->p2.p2_fast;
576 }
577
0206e353 578 memset(best_clock, 0, sizeof(*best_clock));
79e53945 579
42158660
ZY		 580 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
581 clock.m1++) {
582 for (clock.m2 = limit->m2.min;
583 clock.m2 <= limit->m2.max; clock.m2++) {
42158660
ZY		 584 for (clock.n = limit->n.min;
585 clock.n <= limit->n.max; clock.n++) {
586 for (clock.p1 = limit->p1.min;
587 clock.p1 <= limit->p1.max; clock.p1++) {
79e53945
JB		 588 int this_err;
589
ac58c3f0 590 pineview_clock(refclk, &clock);
1b894b59
CW		 591 if (!intel_PLL_is_valid(dev, limit,
592 &clock))
79e53945 593 continue;
cec2f356
SP		 594 if (match_clock &&
595 clock.p != match_clock->p)
596 continue;
79e53945
JB		 597
598 this_err = abs(clock.dot - target);
599 if (this_err < err) {
600 *best_clock = clock;
601 err = this_err;
602 }
603 }
604 }
605 }
606 }
607
608 return (err != target);
609}
610
d4906093 611static bool
ee9300bb
DV		 612g4x_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
613 int target, int refclk, intel_clock_t *match_clock,
614 intel_clock_t *best_clock)
d4906093
ML		 615{
616 struct drm_device *dev = crtc->dev;
d4906093
ML		 617 intel_clock_t clock;
618 int max_n;
619 bool found;
6ba770dc
AJ		 620 /* approximately equals target * 0.00585 */
621 int err_most = (target >> 8) + (target >> 9);
d4906093
ML		 622 found = false;
623
624 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
1974cad0 625 if (intel_is_dual_link_lvds(dev))
d4906093
ML		 626 clock.p2 = limit->p2.p2_fast;
627 else
628 clock.p2 = limit->p2.p2_slow;
629 } else {
630 if (target < limit->p2.dot_limit)
631 clock.p2 = limit->p2.p2_slow;
632 else
633 clock.p2 = limit->p2.p2_fast;
634 }
635
636 memset(best_clock, 0, sizeof(*best_clock));
637 max_n = limit->n.max;
f77f13e2 638 /* based on hardware requirement, prefer smaller n to precision */
d4906093 639 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
f77f13e2 640 /* based on hardware requirement, prefere larger m1,m2 */
d4906093
ML		 641 for (clock.m1 = limit->m1.max;
642 clock.m1 >= limit->m1.min; clock.m1--) {
643 for (clock.m2 = limit->m2.max;
644 clock.m2 >= limit->m2.min; clock.m2--) {
645 for (clock.p1 = limit->p1.max;
646 clock.p1 >= limit->p1.min; clock.p1--) {
647 int this_err;
648
ac58c3f0 649 i9xx_clock(refclk, &clock);
1b894b59
CW		 650 if (!intel_PLL_is_valid(dev, limit,
651 &clock))
d4906093 652 continue;
1b894b59
CW		 653
654 this_err = abs(clock.dot - target);
d4906093
ML		 655 if (this_err < err_most) {
656 *best_clock = clock;
657 err_most = this_err;
658 max_n = clock.n;
659 found = true;
660 }
661 }
662 }
663 }
664 }
2c07245f
ZW		 665 return found;
666}
667
a0c4da24 668static bool
ee9300bb
DV		 669vlv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
670 int target, int refclk, intel_clock_t *match_clock,
671 intel_clock_t *best_clock)
a0c4da24
JB		 672{
673 u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2;
674 u32 m, n, fastclk;
f3f08572 675 u32 updrate, minupdate, p;
a0c4da24
JB		 676 unsigned long bestppm, ppm, absppm;
677 int dotclk, flag;
678
af447bd3 679 flag = 0;
a0c4da24
JB		 680 dotclk = target * 1000;
681 bestppm = 1000000;
682 ppm = absppm = 0;
683 fastclk = dotclk / (2*100);
684 updrate = 0;
685 minupdate = 19200;
a0c4da24
JB		 686 n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0;
687 bestm1 = bestm2 = bestp1 = bestp2 = 0;
688
689 /* based on hardware requirement, prefer smaller n to precision */
690 for (n = limit->n.min; n <= ((refclk) / minupdate); n++) {
691 updrate = refclk / n;
692 for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) {
693 for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) {
694 if (p2 > 10)
695 p2 = p2 - 1;
696 p = p1 * p2;
697 /* based on hardware requirement, prefer bigger m1,m2 values */
698 for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) {
699 m2 = (((2*(fastclk * p * n / m1 )) +
700 refclk) / (2*refclk));
701 m = m1 * m2;
702 vco = updrate * m;
703 if (vco >= limit->vco.min && vco < limit->vco.max) {
704 ppm = 1000000 * ((vco / p) - fastclk) / fastclk;
705 absppm = (ppm > 0) ? ppm : (-ppm);
706 if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) {
707 bestppm = 0;
708 flag = 1;
709 }
710 if (absppm < bestppm - 10) {
711 bestppm = absppm;
712 flag = 1;
713 }
714 if (flag) {
715 bestn = n;
716 bestm1 = m1;
717 bestm2 = m2;
718 bestp1 = p1;
719 bestp2 = p2;
720 flag = 0;
721 }
722 }
723 }
724 }
725 }
726 }
727 best_clock->n = bestn;
728 best_clock->m1 = bestm1;
729 best_clock->m2 = bestm2;
730 best_clock->p1 = bestp1;
731 best_clock->p2 = bestp2;
732
733 return true;
734}
a4fc5ed6 735
a5c961d1
PZ		 736enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
737 enum pipe pipe)
738{
739 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
740 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
741
3b117c8f 742 return intel_crtc->config.cpu_transcoder;
a5c961d1
PZ		 743}
744
a928d536
PZ		 745static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe)
746{
747 struct drm_i915_private *dev_priv = dev->dev_private;
748 u32 frame, frame_reg = PIPEFRAME(pipe);
749
750 frame = I915_READ(frame_reg);
751
752 if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50))
753 DRM_DEBUG_KMS("vblank wait timed out\n");
754}
755
9d0498a2
JB		 756/**
757 * intel_wait_for_vblank - wait for vblank on a given pipe
758 * @dev: drm device
759 * @pipe: pipe to wait for
760 *
761 * Wait for vblank to occur on a given pipe. Needed for various bits of
762 * mode setting code.
763 */
764void intel_wait_for_vblank(struct drm_device *dev, int pipe)
79e53945 765{
9d0498a2 766 struct drm_i915_private *dev_priv = dev->dev_private;
9db4a9c7 767 int pipestat_reg = PIPESTAT(pipe);
9d0498a2 768
a928d536
PZ		 769 if (INTEL_INFO(dev)->gen >= 5) {
770 ironlake_wait_for_vblank(dev, pipe);
771 return;
772 }
773
300387c0
CW		 774 /* Clear existing vblank status. Note this will clear any other
775 * sticky status fields as well.
776 *
777 * This races with i915_driver_irq_handler() with the result
778 * that either function could miss a vblank event. Here it is not
779 * fatal, as we will either wait upon the next vblank interrupt or
780 * timeout. Generally speaking intel_wait_for_vblank() is only
781 * called during modeset at which time the GPU should be idle and
782 * should *not* be performing page flips and thus not waiting on
783 * vblanks...
784 * Currently, the result of us stealing a vblank from the irq
785 * handler is that a single frame will be skipped during swapbuffers.
786 */
787 I915_WRITE(pipestat_reg,
788 I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS);
789
9d0498a2 790 /* Wait for vblank interrupt bit to set */
481b6af3
CW		 791 if (wait_for(I915_READ(pipestat_reg) &
792 PIPE_VBLANK_INTERRUPT_STATUS,
793 50))
9d0498a2
JB		 794 DRM_DEBUG_KMS("vblank wait timed out\n");
795}
796
ab7ad7f6
KP		 797/*
798 * intel_wait_for_pipe_off - wait for pipe to turn off
9d0498a2
JB		 799 * @dev: drm device
800 * @pipe: pipe to wait for
801 *
802 * After disabling a pipe, we can't wait for vblank in the usual way,
803 * spinning on the vblank interrupt status bit, since we won't actually
804 * see an interrupt when the pipe is disabled.
805 *
ab7ad7f6
KP		 806 * On Gen4 and above:
807 * wait for the pipe register state bit to turn off
808 *
809 * Otherwise:
810 * wait for the display line value to settle (it usually
811 * ends up stopping at the start of the next frame).
58e10eb9 812 *
9d0498a2 813 */
58e10eb9 814void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
9d0498a2
JB		 815{
816 struct drm_i915_private *dev_priv = dev->dev_private;
702e7a56
PZ		 817 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
818 pipe);
ab7ad7f6
KP		 819
820 if (INTEL_INFO(dev)->gen >= 4) {
702e7a56 821 int reg = PIPECONF(cpu_transcoder);
ab7ad7f6
KP		 822
823 /* Wait for the Pipe State to go off */
58e10eb9
CW		 824 if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0,
825 100))
284637d9 826 WARN(1, "pipe_off wait timed out\n");
ab7ad7f6 827 } else {
837ba00f 828 u32 last_line, line_mask;
58e10eb9 829 int reg = PIPEDSL(pipe);
ab7ad7f6
KP		 830 unsigned long timeout = jiffies + msecs_to_jiffies(100);
831
837ba00f
PZ		 832 if (IS_GEN2(dev))
833 line_mask = DSL_LINEMASK_GEN2;
834 else
835 line_mask = DSL_LINEMASK_GEN3;
836
ab7ad7f6
KP		 837 /* Wait for the display line to settle */
838 do {
837ba00f 839 last_line = I915_READ(reg) & line_mask;
ab7ad7f6 840 mdelay(5);
837ba00f 841 } while (((I915_READ(reg) & line_mask) != last_line) &&
ab7ad7f6
KP		 842 time_after(timeout, jiffies));
843 if (time_after(jiffies, timeout))
284637d9 844 WARN(1, "pipe_off wait timed out\n");
ab7ad7f6 845 }
79e53945
JB		 846}
847
b0ea7d37
DL		 848/*
849 * ibx_digital_port_connected - is the specified port connected?
850 * @dev_priv: i915 private structure
851 * @port: the port to test
852 *
853 * Returns true if @port is connected, false otherwise.
854 */
855bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
856 struct intel_digital_port *port)
857{
858 u32 bit;
859
c36346e3
DL		 860 if (HAS_PCH_IBX(dev_priv->dev)) {
861 switch(port->port) {
862 case PORT_B:
863 bit = SDE_PORTB_HOTPLUG;
864 break;
865 case PORT_C:
866 bit = SDE_PORTC_HOTPLUG;
867 break;
868 case PORT_D:
869 bit = SDE_PORTD_HOTPLUG;
870 break;
871 default:
872 return true;
873 }
874 } else {
875 switch(port->port) {
876 case PORT_B:
877 bit = SDE_PORTB_HOTPLUG_CPT;
878 break;
879 case PORT_C:
880 bit = SDE_PORTC_HOTPLUG_CPT;
881 break;
882 case PORT_D:
883 bit = SDE_PORTD_HOTPLUG_CPT;
884 break;
885 default:
886 return true;
887 }
b0ea7d37
DL		 888 }
889
890 return I915_READ(SDEISR) & bit;
891}
892
b24e7179
JB		 893static const char *state_string(bool enabled)
894{
895 return enabled ? "on" : "off";
896}
897
898/* Only for pre-ILK configs */
55607e8a
DV		 899void assert_pll(struct drm_i915_private *dev_priv,
900 enum pipe pipe, bool state)
b24e7179
JB		 901{
902 int reg;
903 u32 val;
904 bool cur_state;
905
906 reg = DPLL(pipe);
907 val = I915_READ(reg);
908 cur_state = !!(val & DPLL_VCO_ENABLE);
909 WARN(cur_state != state,
910 "PLL state assertion failure (expected %s, current %s)\n",
911 state_string(state), state_string(cur_state));
912}
b24e7179 913
23538ef1
JN		 914/* XXX: the dsi pll is shared between MIPI DSI ports */
915static void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state)
916{
917 u32 val;
918 bool cur_state;
919
920 mutex_lock(&dev_priv->dpio_lock);
921 val = vlv_cck_read(dev_priv, CCK_REG_DSI_PLL_CONTROL);
922 mutex_unlock(&dev_priv->dpio_lock);
923
924 cur_state = val & DSI_PLL_VCO_EN;
925 WARN(cur_state != state,
926 "DSI PLL state assertion failure (expected %s, current %s)\n",
927 state_string(state), state_string(cur_state));
928}
929#define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
930#define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
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 1663static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
23538ef1 1664 bool pch_port, bool dsi)
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))
23538ef1
JN		 1686 if (dsi)
1687 assert_dsi_pll_enabled(dev_priv);
1688 else
1689 assert_pll_enabled(dev_priv, pipe);
040484af
JB		 1690 else {
1691 if (pch_port) {
1692 /* if driving the PCH, we need FDI enabled */
cc391bbb 1693 assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
1a240d4d
DV		 1694 assert_fdi_tx_pll_enabled(dev_priv,
1695 (enum pipe) cpu_transcoder);
040484af
JB		 1696 }
1697 /* FIXME: assert CPU port conditions for SNB+ */
1698 }
b24e7179 1699
702e7a56 1700 reg = PIPECONF(cpu_transcoder);
b24e7179 1701 val = I915_READ(reg);
00d70b15
CW		 1702 if (val & PIPECONF_ENABLE)
1703 return;
1704
1705 I915_WRITE(reg, val | PIPECONF_ENABLE);
b24e7179
JB		 1706 intel_wait_for_vblank(dev_priv->dev, pipe);
1707}
1708
1709/**
309cfea8 1710 * intel_disable_pipe - disable a pipe, asserting requirements
b24e7179
JB		 1711 * @dev_priv: i915 private structure
1712 * @pipe: pipe to disable
1713 *
1714 * Disable @pipe, making sure that various hardware specific requirements
1715 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1716 *
1717 * @pipe should be %PIPE_A or %PIPE_B.
1718 *
1719 * Will wait until the pipe has shut down before returning.
1720 */
1721static void intel_disable_pipe(struct drm_i915_private *dev_priv,
1722 enum pipe pipe)
1723{
702e7a56
PZ		 1724 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1725 pipe);
b24e7179
JB		 1726 int reg;
1727 u32 val;
1728
1729 /*
1730 * Make sure planes won't keep trying to pump pixels to us,
1731 * or we might hang the display.
1732 */
1733 assert_planes_disabled(dev_priv, pipe);
19332d7a 1734 assert_sprites_disabled(dev_priv, pipe);
b24e7179
JB		 1735
1736 /* Don't disable pipe A or pipe A PLLs if needed */
1737 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1738 return;
1739
702e7a56 1740 reg = PIPECONF(cpu_transcoder);
b24e7179 1741 val = I915_READ(reg);
00d70b15
CW		 1742 if ((val & PIPECONF_ENABLE) == 0)
1743 return;
1744
1745 I915_WRITE(reg, val & ~PIPECONF_ENABLE);
b24e7179
JB		 1746 intel_wait_for_pipe_off(dev_priv->dev, pipe);
1747}
1748
d74362c9
KP		 1749/*
1750 * Plane regs are double buffered, going from enabled->disabled needs a
1751 * trigger in order to latch. The display address reg provides this.
1752 */
6f1d69b0 1753void intel_flush_display_plane(struct drm_i915_private *dev_priv,
d74362c9
KP		 1754 enum plane plane)
1755{
14f86147
DL		 1756 if (dev_priv->info->gen >= 4)
1757 I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane)));
1758 else
1759 I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane)));
d74362c9
KP		 1760}
1761
b24e7179
JB		 1762/**
1763 * intel_enable_plane - enable a display plane on a given pipe
1764 * @dev_priv: i915 private structure
1765 * @plane: plane to enable
1766 * @pipe: pipe being fed
1767 *
1768 * Enable @plane on @pipe, making sure that @pipe is running first.
1769 */
1770static void intel_enable_plane(struct drm_i915_private *dev_priv,
1771 enum plane plane, enum pipe pipe)
1772{
1773 int reg;
1774 u32 val;
1775
1776 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1777 assert_pipe_enabled(dev_priv, pipe);
1778
1779 reg = DSPCNTR(plane);
1780 val = I915_READ(reg);
00d70b15
CW		 1781 if (val & DISPLAY_PLANE_ENABLE)
1782 return;
1783
1784 I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
d74362c9 1785 intel_flush_display_plane(dev_priv, plane);
b24e7179
JB		 1786 intel_wait_for_vblank(dev_priv->dev, pipe);
1787}
1788
b24e7179
JB		 1789/**
1790 * intel_disable_plane - disable a display plane
1791 * @dev_priv: i915 private structure
1792 * @plane: plane to disable
1793 * @pipe: pipe consuming the data
1794 *
1795 * Disable @plane; should be an independent operation.
1796 */
1797static void intel_disable_plane(struct drm_i915_private *dev_priv,
1798 enum plane plane, enum pipe pipe)
1799{
1800 int reg;
1801 u32 val;
1802
1803 reg = DSPCNTR(plane);
1804 val = I915_READ(reg);
00d70b15
CW		 1805 if ((val & DISPLAY_PLANE_ENABLE) == 0)
1806 return;
1807
1808 I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
b24e7179
JB		 1809 intel_flush_display_plane(dev_priv, plane);
1810 intel_wait_for_vblank(dev_priv->dev, pipe);
1811}
1812
693db184
CW		 1813static bool need_vtd_wa(struct drm_device *dev)
1814{
1815#ifdef CONFIG_INTEL_IOMMU
1816 if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped)
1817 return true;
1818#endif
1819 return false;
1820}
1821
127bd2ac 1822int
48b956c5 1823intel_pin_and_fence_fb_obj(struct drm_device *dev,
05394f39 1824 struct drm_i915_gem_object *obj,
919926ae 1825 struct intel_ring_buffer *pipelined)
6b95a207 1826{
ce453d81 1827 struct drm_i915_private *dev_priv = dev->dev_private;
6b95a207
KH		 1828 u32 alignment;
1829 int ret;
1830
05394f39 1831 switch (obj->tiling_mode) {
6b95a207 1832 case I915_TILING_NONE:
534843da
CW		 1833 if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
1834 alignment = 128 * 1024;
a6c45cf0 1835 else if (INTEL_INFO(dev)->gen >= 4)
534843da
CW		 1836 alignment = 4 * 1024;
1837 else
1838 alignment = 64 * 1024;
6b95a207
KH		 1839 break;
1840 case I915_TILING_X:
1841 /* pin() will align the object as required by fence */
1842 alignment = 0;
1843 break;
1844 case I915_TILING_Y:
8bb6e959
DV		 1845 /* Despite that we check this in framebuffer_init userspace can
1846 * screw us over and change the tiling after the fact. Only
1847 * pinned buffers can't change their tiling. */
1848 DRM_DEBUG_DRIVER("Y tiled not allowed for scan out buffers\n");
6b95a207
KH		 1849 return -EINVAL;
1850 default:
1851 BUG();
1852 }
1853
693db184
CW		 1854 /* Note that the w/a also requires 64 PTE of padding following the
1855 * bo. We currently fill all unused PTE with the shadow page and so
1856 * we should always have valid PTE following the scanout preventing
1857 * the VT-d warning.
1858 */
1859 if (need_vtd_wa(dev) && alignment < 256 * 1024)
1860 alignment = 256 * 1024;
1861
ce453d81 1862 dev_priv->mm.interruptible = false;
2da3b9b9 1863 ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
48b956c5 1864 if (ret)
ce453d81 1865 goto err_interruptible;
6b95a207
KH		 1866
1867 /* Install a fence for tiled scan-out. Pre-i965 always needs a
1868 * fence, whereas 965+ only requires a fence if using
1869 * framebuffer compression. For simplicity, we always install
1870 * a fence as the cost is not that onerous.
1871 */
06d98131 1872 ret = i915_gem_object_get_fence(obj);
9a5a53b3
CW		 1873 if (ret)
1874 goto err_unpin;
1690e1eb 1875
9a5a53b3 1876 i915_gem_object_pin_fence(obj);
6b95a207 1877
ce453d81 1878 dev_priv->mm.interruptible = true;
6b95a207 1879 return 0;
48b956c5
CW		 1880
1881err_unpin:
cc98b413 1882 i915_gem_object_unpin_from_display_plane(obj);
ce453d81
CW		 1883err_interruptible:
1884 dev_priv->mm.interruptible = true;
48b956c5 1885 return ret;
6b95a207
KH		 1886}
1887
1690e1eb
CW		 1888void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
1889{
1890 i915_gem_object_unpin_fence(obj);
cc98b413 1891 i915_gem_object_unpin_from_display_plane(obj);
1690e1eb
CW		 1892}
1893
c2c75131
DV		 1894/* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
1895 * is assumed to be a power-of-two. */
bc752862
CW		 1896unsigned long intel_gen4_compute_page_offset(int *x, int *y,
1897 unsigned int tiling_mode,
1898 unsigned int cpp,
1899 unsigned int pitch)
c2c75131 1900{
bc752862
CW		 1901 if (tiling_mode != I915_TILING_NONE) {
1902 unsigned int tile_rows, tiles;
c2c75131 1903
bc752862
CW		 1904 tile_rows = *y / 8;
1905 *y %= 8;
c2c75131 1906
bc752862
CW		 1907 tiles = *x / (512/cpp);
1908 *x %= 512/cpp;
1909
1910 return tile_rows * pitch * 8 + tiles * 4096;
1911 } else {
1912 unsigned int offset;
1913
1914 offset = *y * pitch + *x * cpp;
1915 *y = 0;
1916 *x = (offset & 4095) / cpp;
1917 return offset & -4096;
1918 }
c2c75131
DV		 1919}
1920
17638cd6
JB		 1921static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
1922 int x, int y)
81255565
JB		 1923{
1924 struct drm_device *dev = crtc->dev;
1925 struct drm_i915_private *dev_priv = dev->dev_private;
1926 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1927 struct intel_framebuffer *intel_fb;
05394f39 1928 struct drm_i915_gem_object *obj;
81255565 1929 int plane = intel_crtc->plane;
e506a0c6 1930 unsigned long linear_offset;
81255565 1931 u32 dspcntr;
5eddb70b 1932 u32 reg;
81255565
JB		 1933
1934 switch (plane) {
1935 case 0:
1936 case 1:
1937 break;
1938 default:
84f44ce7 1939 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
81255565
JB		 1940 return -EINVAL;
1941 }
1942
1943 intel_fb = to_intel_framebuffer(fb);
1944 obj = intel_fb->obj;
81255565 1945
5eddb70b
CW		 1946 reg = DSPCNTR(plane);
1947 dspcntr = I915_READ(reg);
81255565
JB		 1948 /* Mask out pixel format bits in case we change it */
1949 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
57779d06
VS		 1950 switch (fb->pixel_format) {
1951 case DRM_FORMAT_C8:
81255565
JB		 1952 dspcntr |= DISPPLANE_8BPP;
1953 break;
57779d06
VS		 1954 case DRM_FORMAT_XRGB1555:
1955 case DRM_FORMAT_ARGB1555:
1956 dspcntr |= DISPPLANE_BGRX555;
81255565 1957 break;
57779d06
VS		 1958 case DRM_FORMAT_RGB565:
1959 dspcntr |= DISPPLANE_BGRX565;
1960 break;
1961 case DRM_FORMAT_XRGB8888:
1962 case DRM_FORMAT_ARGB8888:
1963 dspcntr |= DISPPLANE_BGRX888;
1964 break;
1965 case DRM_FORMAT_XBGR8888:
1966 case DRM_FORMAT_ABGR8888:
1967 dspcntr |= DISPPLANE_RGBX888;
1968 break;
1969 case DRM_FORMAT_XRGB2101010:
1970 case DRM_FORMAT_ARGB2101010:
1971 dspcntr |= DISPPLANE_BGRX101010;
1972 break;
1973 case DRM_FORMAT_XBGR2101010:
1974 case DRM_FORMAT_ABGR2101010:
1975 dspcntr |= DISPPLANE_RGBX101010;
81255565
JB		 1976 break;
1977 default:
baba133a 1978 BUG();
81255565 1979 }
57779d06 1980
a6c45cf0 1981 if (INTEL_INFO(dev)->gen >= 4) {
05394f39 1982 if (obj->tiling_mode != I915_TILING_NONE)
81255565
JB		 1983 dspcntr |= DISPPLANE_TILED;
1984 else
1985 dspcntr &= ~DISPPLANE_TILED;
1986 }
1987
de1aa629
VS		 1988 if (IS_G4X(dev))
1989 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
1990
5eddb70b 1991 I915_WRITE(reg, dspcntr);
81255565 1992
e506a0c6 1993 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
81255565 1994
c2c75131
DV		 1995 if (INTEL_INFO(dev)->gen >= 4) {
1996 intel_crtc->dspaddr_offset =
bc752862
CW		 1997 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
1998 fb->bits_per_pixel / 8,
1999 fb->pitches[0]);
c2c75131
DV		 2000 linear_offset -= intel_crtc->dspaddr_offset;
2001 } else {
e506a0c6 2002 intel_crtc->dspaddr_offset = linear_offset;
c2c75131 2003 }
e506a0c6 2004
f343c5f6
BW		 2005 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2006 i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
2007 fb->pitches[0]);
01f2c773 2008 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
a6c45cf0 2009 if (INTEL_INFO(dev)->gen >= 4) {
c2c75131 2010 I915_MODIFY_DISPBASE(DSPSURF(plane),
f343c5f6 2011 i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
5eddb70b 2012 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
e506a0c6 2013 I915_WRITE(DSPLINOFF(plane), linear_offset);
5eddb70b 2014 } else
f343c5f6 2015 I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset);
5eddb70b 2016 POSTING_READ(reg);
81255565 2017
17638cd6
JB		 2018 return 0;
2019}
2020
2021static int ironlake_update_plane(struct drm_crtc *crtc,
2022 struct drm_framebuffer *fb, int x, int y)
2023{
2024 struct drm_device *dev = crtc->dev;
2025 struct drm_i915_private *dev_priv = dev->dev_private;
2026 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2027 struct intel_framebuffer *intel_fb;
2028 struct drm_i915_gem_object *obj;
2029 int plane = intel_crtc->plane;
e506a0c6 2030 unsigned long linear_offset;
17638cd6
JB		 2031 u32 dspcntr;
2032 u32 reg;
2033
2034 switch (plane) {
2035 case 0:
2036 case 1:
27f8227b 2037 case 2:
17638cd6
JB		 2038 break;
2039 default:
84f44ce7 2040 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
17638cd6
JB		 2041 return -EINVAL;
2042 }
2043
2044 intel_fb = to_intel_framebuffer(fb);
2045 obj = intel_fb->obj;
2046
2047 reg = DSPCNTR(plane);
2048 dspcntr = I915_READ(reg);
2049 /* Mask out pixel format bits in case we change it */
2050 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
57779d06
VS		 2051 switch (fb->pixel_format) {
2052 case DRM_FORMAT_C8:
17638cd6
JB		 2053 dspcntr |= DISPPLANE_8BPP;
2054 break;
57779d06
VS		 2055 case DRM_FORMAT_RGB565:
2056 dspcntr |= DISPPLANE_BGRX565;
17638cd6 2057 break;
57779d06
VS		 2058 case DRM_FORMAT_XRGB8888:
2059 case DRM_FORMAT_ARGB8888:
2060 dspcntr |= DISPPLANE_BGRX888;
2061 break;
2062 case DRM_FORMAT_XBGR8888:
2063 case DRM_FORMAT_ABGR8888:
2064 dspcntr |= DISPPLANE_RGBX888;
2065 break;
2066 case DRM_FORMAT_XRGB2101010:
2067 case DRM_FORMAT_ARGB2101010:
2068 dspcntr |= DISPPLANE_BGRX101010;
2069 break;
2070 case DRM_FORMAT_XBGR2101010:
2071 case DRM_FORMAT_ABGR2101010:
2072 dspcntr |= DISPPLANE_RGBX101010;
17638cd6
JB		 2073 break;
2074 default:
baba133a 2075 BUG();
17638cd6
JB		 2076 }
2077
2078 if (obj->tiling_mode != I915_TILING_NONE)
2079 dspcntr |= DISPPLANE_TILED;
2080 else
2081 dspcntr &= ~DISPPLANE_TILED;
2082
1f5d76db
PZ		 2083 if (IS_HASWELL(dev))
2084 dspcntr &= ~DISPPLANE_TRICKLE_FEED_DISABLE;
2085 else
2086 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
17638cd6
JB		 2087
2088 I915_WRITE(reg, dspcntr);
2089
e506a0c6 2090 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
c2c75131 2091 intel_crtc->dspaddr_offset =
bc752862
CW		 2092 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2093 fb->bits_per_pixel / 8,
2094 fb->pitches[0]);
c2c75131 2095 linear_offset -= intel_crtc->dspaddr_offset;
17638cd6 2096
f343c5f6
BW		 2097 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2098 i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
2099 fb->pitches[0]);
01f2c773 2100 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
c2c75131 2101 I915_MODIFY_DISPBASE(DSPSURF(plane),
f343c5f6 2102 i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
bc1c91eb
DL		 2103 if (IS_HASWELL(dev)) {
2104 I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
2105 } else {
2106 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2107 I915_WRITE(DSPLINOFF(plane), linear_offset);
2108 }
17638cd6
JB		 2109 POSTING_READ(reg);
2110
2111 return 0;
2112}
2113
2114/* Assume fb object is pinned & idle & fenced and just update base pointers */
2115static int
2116intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2117 int x, int y, enum mode_set_atomic state)
2118{
2119 struct drm_device *dev = crtc->dev;
2120 struct drm_i915_private *dev_priv = dev->dev_private;
17638cd6 2121
6b8e6ed0
CW		 2122 if (dev_priv->display.disable_fbc)
2123 dev_priv->display.disable_fbc(dev);
3dec0095 2124 intel_increase_pllclock(crtc);
81255565 2125
6b8e6ed0 2126 return dev_priv->display.update_plane(crtc, fb, x, y);
81255565
JB		 2127}
2128
96a02917
VS		 2129void intel_display_handle_reset(struct drm_device *dev)
2130{
2131 struct drm_i915_private *dev_priv = dev->dev_private;
2132 struct drm_crtc *crtc;
2133
2134 /*
2135 * Flips in the rings have been nuked by the reset,
2136 * so complete all pending flips so that user space
2137 * will get its events and not get stuck.
2138 *
2139 * Also update the base address of all primary
2140 * planes to the the last fb to make sure we're
2141 * showing the correct fb after a reset.
2142 *
2143 * Need to make two loops over the crtcs so that we
2144 * don't try to grab a crtc mutex before the
2145 * pending_flip_queue really got woken up.
2146 */
2147
2148 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2149 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2150 enum plane plane = intel_crtc->plane;
2151
2152 intel_prepare_page_flip(dev, plane);
2153 intel_finish_page_flip_plane(dev, plane);
2154 }
2155
2156 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2157 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2158
2159 mutex_lock(&crtc->mutex);
2160 if (intel_crtc->active)
2161 dev_priv->display.update_plane(crtc, crtc->fb,
2162 crtc->x, crtc->y);
2163 mutex_unlock(&crtc->mutex);
2164 }
2165}
2166
14667a4b
CW		 2167static int
2168intel_finish_fb(struct drm_framebuffer *old_fb)
2169{
2170 struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
2171 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2172 bool was_interruptible = dev_priv->mm.interruptible;
2173 int ret;
2174
14667a4b
CW		 2175 /* Big Hammer, we also need to ensure that any pending
2176 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2177 * current scanout is retired before unpinning the old
2178 * framebuffer.
2179 *
2180 * This should only fail upon a hung GPU, in which case we
2181 * can safely continue.
2182 */
2183 dev_priv->mm.interruptible = false;
2184 ret = i915_gem_object_finish_gpu(obj);
2185 dev_priv->mm.interruptible = was_interruptible;
2186
2187 return ret;
2188}
2189
198598d0
VS		 2190static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y)
2191{
2192 struct drm_device *dev = crtc->dev;
2193 struct drm_i915_master_private *master_priv;
2194 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2195
2196 if (!dev->primary->master)
2197 return;
2198
2199 master_priv = dev->primary->master->driver_priv;
2200 if (!master_priv->sarea_priv)
2201 return;
2202
2203 switch (intel_crtc->pipe) {
2204 case 0:
2205 master_priv->sarea_priv->pipeA_x = x;
2206 master_priv->sarea_priv->pipeA_y = y;
2207 break;
2208 case 1:
2209 master_priv->sarea_priv->pipeB_x = x;
2210 master_priv->sarea_priv->pipeB_y = y;
2211 break;
2212 default:
2213 break;
2214 }
2215}
2216
5c3b82e2 2217static int
3c4fdcfb 2218intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
94352cf9 2219 struct drm_framebuffer *fb)
79e53945
JB		 2220{
2221 struct drm_device *dev = crtc->dev;
6b8e6ed0 2222 struct drm_i915_private *dev_priv = dev->dev_private;
79e53945 2223 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
94352cf9 2224 struct drm_framebuffer *old_fb;
5c3b82e2 2225 int ret;
79e53945
JB		 2226
2227 /* no fb bound */
94352cf9 2228 if (!fb) {
a5071c2f 2229 DRM_ERROR("No FB bound\n");
5c3b82e2
CW		 2230 return 0;
2231 }
2232
7eb552ae 2233 if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
84f44ce7
VS		 2234 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2235 plane_name(intel_crtc->plane),
2236 INTEL_INFO(dev)->num_pipes);
5c3b82e2 2237 return -EINVAL;
79e53945
JB		 2238 }
2239
5c3b82e2 2240 mutex_lock(&dev->struct_mutex);
265db958 2241 ret = intel_pin_and_fence_fb_obj(dev,
94352cf9 2242 to_intel_framebuffer(fb)->obj,
919926ae 2243 NULL);
5c3b82e2
CW		 2244 if (ret != 0) {
2245 mutex_unlock(&dev->struct_mutex);
a5071c2f 2246 DRM_ERROR("pin & fence failed\n");
5c3b82e2
CW		 2247 return ret;
2248 }
79e53945 2249
4d6a3e63
JB		 2250 /* Update pipe size and adjust fitter if needed */
2251 if (i915_fastboot) {
2252 I915_WRITE(PIPESRC(intel_crtc->pipe),
2253 ((crtc->mode.hdisplay - 1) << 16) |
2254 (crtc->mode.vdisplay - 1));
2255 if (!intel_crtc->config.pch_pfit.size &&
2256 (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) ||
2257 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
2258 I915_WRITE(PF_CTL(intel_crtc->pipe), 0);
2259 I915_WRITE(PF_WIN_POS(intel_crtc->pipe), 0);
2260 I915_WRITE(PF_WIN_SZ(intel_crtc->pipe), 0);
2261 }
2262 }
2263
94352cf9 2264 ret = dev_priv->display.update_plane(crtc, fb, x, y);
4e6cfefc 2265 if (ret) {
94352cf9 2266 intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);
5c3b82e2 2267 mutex_unlock(&dev->struct_mutex);
a5071c2f 2268 DRM_ERROR("failed to update base address\n");
4e6cfefc 2269 return ret;
79e53945 2270 }
3c4fdcfb 2271
94352cf9
DV		 2272 old_fb = crtc->fb;
2273 crtc->fb = fb;
6c4c86f5
DV		 2274 crtc->x = x;
2275 crtc->y = y;
94352cf9 2276
b7f1de28 2277 if (old_fb) {
d7697eea
DV		 2278 if (intel_crtc->active && old_fb != fb)
2279 intel_wait_for_vblank(dev, intel_crtc->pipe);
1690e1eb 2280 intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
b7f1de28 2281 }
652c393a 2282
6b8e6ed0 2283 intel_update_fbc(dev);
4906557e 2284 intel_edp_psr_update(dev);
5c3b82e2 2285 mutex_unlock(&dev->struct_mutex);
79e53945 2286
198598d0 2287 intel_crtc_update_sarea_pos(crtc, x, y);
5c3b82e2
CW		 2288
2289 return 0;
79e53945
JB		 2290}
2291
5e84e1a4
ZW		 2292static void intel_fdi_normal_train(struct drm_crtc *crtc)
2293{
2294 struct drm_device *dev = crtc->dev;
2295 struct drm_i915_private *dev_priv = dev->dev_private;
2296 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2297 int pipe = intel_crtc->pipe;
2298 u32 reg, temp;
2299
2300 /* enable normal train */
2301 reg = FDI_TX_CTL(pipe);
2302 temp = I915_READ(reg);
61e499bf 2303 if (IS_IVYBRIDGE(dev)) {
357555c0
JB		 2304 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2305 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
61e499bf
KP		 2306 } else {
2307 temp &= ~FDI_LINK_TRAIN_NONE;
2308 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
357555c0 2309 }
5e84e1a4
ZW		 2310 I915_WRITE(reg, temp);
2311
2312 reg = FDI_RX_CTL(pipe);
2313 temp = I915_READ(reg);
2314 if (HAS_PCH_CPT(dev)) {
2315 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2316 temp |= FDI_LINK_TRAIN_NORMAL_CPT;
2317 } else {
2318 temp &= ~FDI_LINK_TRAIN_NONE;
2319 temp |= FDI_LINK_TRAIN_NONE;
2320 }
2321 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
2322
2323 /* wait one idle pattern time */
2324 POSTING_READ(reg);
2325 udelay(1000);
357555c0
JB		 2326
2327 /* IVB wants error correction enabled */
2328 if (IS_IVYBRIDGE(dev))
2329 I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
2330 FDI_FE_ERRC_ENABLE);
5e84e1a4
ZW		 2331}
2332
1e833f40
DV		 2333static bool pipe_has_enabled_pch(struct intel_crtc *intel_crtc)
2334{
2335 return intel_crtc->base.enabled && intel_crtc->config.has_pch_encoder;
2336}
2337
01a415fd
DV		 2338static void ivb_modeset_global_resources(struct drm_device *dev)
2339{
2340 struct drm_i915_private *dev_priv = dev->dev_private;
2341 struct intel_crtc *pipe_B_crtc =
2342 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
2343 struct intel_crtc *pipe_C_crtc =
2344 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]);
2345 uint32_t temp;
2346
1e833f40
DV		 2347 /*
2348 * When everything is off disable fdi C so that we could enable fdi B
2349 * with all lanes. Note that we don't care about enabled pipes without
2350 * an enabled pch encoder.
2351 */
2352 if (!pipe_has_enabled_pch(pipe_B_crtc) &&
2353 !pipe_has_enabled_pch(pipe_C_crtc)) {
01a415fd
DV		 2354 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
2355 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
2356
2357 temp = I915_READ(SOUTH_CHICKEN1);
2358 temp &= ~FDI_BC_BIFURCATION_SELECT;
2359 DRM_DEBUG_KMS("disabling fdi C rx\n");
2360 I915_WRITE(SOUTH_CHICKEN1, temp);
2361 }
2362}
2363
8db9d77b
ZW		 2364/* The FDI link training functions for ILK/Ibexpeak. */
2365static void ironlake_fdi_link_train(struct drm_crtc *crtc)
2366{
2367 struct drm_device *dev = crtc->dev;
2368 struct drm_i915_private *dev_priv = dev->dev_private;
2369 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2370 int pipe = intel_crtc->pipe;
0fc932b8 2371 int plane = intel_crtc->plane;
5eddb70b 2372 u32 reg, temp, tries;
8db9d77b 2373
0fc932b8
JB		 2374 /* FDI needs bits from pipe & plane first */
2375 assert_pipe_enabled(dev_priv, pipe);
2376 assert_plane_enabled(dev_priv, plane);
2377
e1a44743
AJ		 2378 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2379 for train result */
5eddb70b
CW		 2380 reg = FDI_RX_IMR(pipe);
2381 temp = I915_READ(reg);
e1a44743
AJ		 2382 temp &= ~FDI_RX_SYMBOL_LOCK;
2383 temp &= ~FDI_RX_BIT_LOCK;
5eddb70b
CW		 2384 I915_WRITE(reg, temp);
2385 I915_READ(reg);
e1a44743
AJ		 2386 udelay(150);
2387
8db9d77b 2388 /* enable CPU FDI TX and PCH FDI RX */
5eddb70b
CW		 2389 reg = FDI_TX_CTL(pipe);
2390 temp = I915_READ(reg);
627eb5a3
DV		 2391 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2392 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
8db9d77b
ZW		 2393 temp &= ~FDI_LINK_TRAIN_NONE;
2394 temp |= FDI_LINK_TRAIN_PATTERN_1;
5eddb70b 2395 I915_WRITE(reg, temp | FDI_TX_ENABLE);
8db9d77b 2396
5eddb70b
CW		 2397 reg = FDI_RX_CTL(pipe);
2398 temp = I915_READ(reg);
8db9d77b
ZW		 2399 temp &= ~FDI_LINK_TRAIN_NONE;
2400 temp |= FDI_LINK_TRAIN_PATTERN_1;
5eddb70b
CW		 2401 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2402
2403 POSTING_READ(reg);
8db9d77b
ZW		 2404 udelay(150);
2405
5b2adf89 2406 /* Ironlake workaround, enable clock pointer after FDI enable*/
8f5718a6
DV		 2407 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2408 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
2409 FDI_RX_PHASE_SYNC_POINTER_EN);
5b2adf89 2410
5eddb70b 2411 reg = FDI_RX_IIR(pipe);
e1a44743 2412 for (tries = 0; tries < 5; tries++) {
5eddb70b 2413 temp = I915_READ(reg);
8db9d77b
ZW		 2414 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2415
2416 if ((temp & FDI_RX_BIT_LOCK)) {
2417 DRM_DEBUG_KMS("FDI train 1 done.\n");
5eddb70b 2418 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
8db9d77b
ZW		 2419 break;
2420 }
8db9d77b 2421 }
e1a44743 2422 if (tries == 5)
5eddb70b 2423 DRM_ERROR("FDI train 1 fail!\n");
8db9d77b
ZW		 2424
2425 /* Train 2 */
5eddb70b
CW		 2426 reg = FDI_TX_CTL(pipe);
2427 temp = I915_READ(reg);
8db9d77b
ZW		 2428 temp &= ~FDI_LINK_TRAIN_NONE;
2429 temp |= FDI_LINK_TRAIN_PATTERN_2;
5eddb70b 2430 I915_WRITE(reg, temp);
8db9d77b 2431
5eddb70b
CW		 2432 reg = FDI_RX_CTL(pipe);
2433 temp = I915_READ(reg);
8db9d77b
ZW		 2434 temp &= ~FDI_LINK_TRAIN_NONE;
2435 temp |= FDI_LINK_TRAIN_PATTERN_2;
5eddb70b 2436 I915_WRITE(reg, temp);
8db9d77b 2437
5eddb70b
CW		 2438 POSTING_READ(reg);
2439 udelay(150);
8db9d77b 2440
5eddb70b 2441 reg = FDI_RX_IIR(pipe);
e1a44743 2442 for (tries = 0; tries < 5; tries++) {
5eddb70b 2443 temp = I915_READ(reg);
8db9d77b
ZW		 2444 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2445
2446 if (temp & FDI_RX_SYMBOL_LOCK) {
5eddb70b 2447 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
8db9d77b
ZW		 2448 DRM_DEBUG_KMS("FDI train 2 done.\n");
2449 break;
2450 }
8db9d77b 2451 }
e1a44743 2452 if (tries == 5)
5eddb70b 2453 DRM_ERROR("FDI train 2 fail!\n");
8db9d77b
ZW		 2454
2455 DRM_DEBUG_KMS("FDI train done\n");
5c5313c8 2456
8db9d77b
ZW		 2457}
2458
0206e353 2459static const int snb_b_fdi_train_param[] = {
8db9d77b
ZW		 2460 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
2461 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
2462 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
2463 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
2464};
2465
2466/* The FDI link training functions for SNB/Cougarpoint. */
2467static void gen6_fdi_link_train(struct drm_crtc *crtc)
2468{
2469 struct drm_device *dev = crtc->dev;
2470 struct drm_i915_private *dev_priv = dev->dev_private;
2471 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2472 int pipe = intel_crtc->pipe;
fa37d39e 2473 u32 reg, temp, i, retry;
8db9d77b 2474
e1a44743
AJ		 2475 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2476 for train result */
5eddb70b
CW		 2477 reg = FDI_RX_IMR(pipe);
2478 temp = I915_READ(reg);
e1a44743
AJ		 2479 temp &= ~FDI_RX_SYMBOL_LOCK;
2480 temp &= ~FDI_RX_BIT_LOCK;
5eddb70b
CW		 2481 I915_WRITE(reg, temp);
2482
2483 POSTING_READ(reg);
e1a44743
AJ		 2484 udelay(150);
2485
8db9d77b 2486 /* enable CPU FDI TX and PCH FDI RX */
5eddb70b
CW		 2487 reg = FDI_TX_CTL(pipe);
2488 temp = I915_READ(reg);
627eb5a3
DV		 2489 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2490 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
8db9d77b
ZW		 2491 temp &= ~FDI_LINK_TRAIN_NONE;
2492 temp |= FDI_LINK_TRAIN_PATTERN_1;
2493 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2494 /* SNB-B */
2495 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
5eddb70b 2496 I915_WRITE(reg, temp | FDI_TX_ENABLE);
8db9d77b 2497
d74cf324
DV		 2498 I915_WRITE(FDI_RX_MISC(pipe),
2499 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2500
5eddb70b
CW		 2501 reg = FDI_RX_CTL(pipe);
2502 temp = I915_READ(reg);
8db9d77b
ZW		 2503 if (HAS_PCH_CPT(dev)) {
2504 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2505 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2506 } else {
2507 temp &= ~FDI_LINK_TRAIN_NONE;
2508 temp |= FDI_LINK_TRAIN_PATTERN_1;
2509 }
5eddb70b
CW		 2510 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2511
2512 POSTING_READ(reg);
8db9d77b
ZW		 2513 udelay(150);
2514
0206e353 2515 for (i = 0; i < 4; i++) {
5eddb70b
CW		 2516 reg = FDI_TX_CTL(pipe);
2517 temp = I915_READ(reg);
8db9d77b
ZW		 2518 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2519 temp |= snb_b_fdi_train_param[i];
5eddb70b
CW		 2520 I915_WRITE(reg, temp);
2521
2522 POSTING_READ(reg);
8db9d77b
ZW		 2523 udelay(500);
2524
fa37d39e
SP		 2525 for (retry = 0; retry < 5; retry++) {
2526 reg = FDI_RX_IIR(pipe);
2527 temp = I915_READ(reg);
2528 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2529 if (temp & FDI_RX_BIT_LOCK) {
2530 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2531 DRM_DEBUG_KMS("FDI train 1 done.\n");
2532 break;
2533 }
2534 udelay(50);
8db9d77b 2535 }
fa37d39e
SP		 2536 if (retry < 5)
2537 break;
8db9d77b
ZW		 2538 }
2539 if (i == 4)
5eddb70b 2540 DRM_ERROR("FDI train 1 fail!\n");
8db9d77b
ZW		 2541
2542 /* Train 2 */
5eddb70b
CW		 2543 reg = FDI_TX_CTL(pipe);
2544 temp = I915_READ(reg);
8db9d77b
ZW		 2545 temp &= ~FDI_LINK_TRAIN_NONE;
2546 temp |= FDI_LINK_TRAIN_PATTERN_2;
2547 if (IS_GEN6(dev)) {
2548 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2549 /* SNB-B */
2550 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2551 }
5eddb70b 2552 I915_WRITE(reg, temp);
8db9d77b 2553
5eddb70b
CW		 2554 reg = FDI_RX_CTL(pipe);
2555 temp = I915_READ(reg);
8db9d77b
ZW		 2556 if (HAS_PCH_CPT(dev)) {
2557 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2558 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2559 } else {
2560 temp &= ~FDI_LINK_TRAIN_NONE;
2561 temp |= FDI_LINK_TRAIN_PATTERN_2;
2562 }
5eddb70b
CW		 2563 I915_WRITE(reg, temp);
2564
2565 POSTING_READ(reg);
8db9d77b
ZW		 2566 udelay(150);
2567
0206e353 2568 for (i = 0; i < 4; i++) {
5eddb70b
CW		 2569 reg = FDI_TX_CTL(pipe);
2570 temp = I915_READ(reg);
8db9d77b
ZW		 2571 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2572 temp |= snb_b_fdi_train_param[i];
5eddb70b
CW		 2573 I915_WRITE(reg, temp);
2574
2575 POSTING_READ(reg);
8db9d77b
ZW		 2576 udelay(500);
2577
fa37d39e
SP		 2578 for (retry = 0; retry < 5; retry++) {
2579 reg = FDI_RX_IIR(pipe);
2580 temp = I915_READ(reg);
2581 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2582 if (temp & FDI_RX_SYMBOL_LOCK) {
2583 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2584 DRM_DEBUG_KMS("FDI train 2 done.\n");
2585 break;
2586 }
2587 udelay(50);
8db9d77b 2588 }
fa37d39e
SP		 2589 if (retry < 5)
2590 break;
8db9d77b
ZW		 2591 }
2592 if (i == 4)
5eddb70b 2593 DRM_ERROR("FDI train 2 fail!\n");
8db9d77b
ZW		 2594
2595 DRM_DEBUG_KMS("FDI train done.\n");
2596}
2597
357555c0
JB		 2598/* Manual link training for Ivy Bridge A0 parts */
2599static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
2600{
2601 struct drm_device *dev = crtc->dev;
2602 struct drm_i915_private *dev_priv = dev->dev_private;
2603 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2604 int pipe = intel_crtc->pipe;
139ccd3f 2605 u32 reg, temp, i, j;
357555c0
JB		 2606
2607 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2608 for train result */
2609 reg = FDI_RX_IMR(pipe);
2610 temp = I915_READ(reg);
2611 temp &= ~FDI_RX_SYMBOL_LOCK;
2612 temp &= ~FDI_RX_BIT_LOCK;
2613 I915_WRITE(reg, temp);
2614
2615 POSTING_READ(reg);
2616 udelay(150);
2617
01a415fd
DV		 2618 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2619 I915_READ(FDI_RX_IIR(pipe)));
2620
139ccd3f
JB		 2621 /* Try each vswing and preemphasis setting twice before moving on */
2622 for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) {
2623 /* disable first in case we need to retry */
2624 reg = FDI_TX_CTL(pipe);
2625 temp = I915_READ(reg);
2626 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
2627 temp &= ~FDI_TX_ENABLE;
2628 I915_WRITE(reg, temp);
357555c0 2629
139ccd3f
JB		 2630 reg = FDI_RX_CTL(pipe);
2631 temp = I915_READ(reg);
2632 temp &= ~FDI_LINK_TRAIN_AUTO;
2633 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2634 temp &= ~FDI_RX_ENABLE;
2635 I915_WRITE(reg, temp);
357555c0 2636
139ccd3f 2637 /* enable CPU FDI TX and PCH FDI RX */
357555c0
JB		 2638 reg = FDI_TX_CTL(pipe);
2639 temp = I915_READ(reg);
139ccd3f
JB		 2640 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2641 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2642 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
357555c0 2643 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
139ccd3f
JB		 2644 temp |= snb_b_fdi_train_param[j/2];
2645 temp |= FDI_COMPOSITE_SYNC;
2646 I915_WRITE(reg, temp | FDI_TX_ENABLE);
357555c0 2647
139ccd3f
JB		 2648 I915_WRITE(FDI_RX_MISC(pipe),
2649 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
357555c0 2650
139ccd3f 2651 reg = FDI_RX_CTL(pipe);
357555c0 2652 temp = I915_READ(reg);
139ccd3f
JB		 2653 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2654 temp |= FDI_COMPOSITE_SYNC;
2655 I915_WRITE(reg, temp | FDI_RX_ENABLE);
357555c0 2656
139ccd3f
JB		 2657 POSTING_READ(reg);
2658 udelay(1); /* should be 0.5us */
357555c0 2659
139ccd3f
JB		 2660 for (i = 0; i < 4; i++) {
2661 reg = FDI_RX_IIR(pipe);
2662 temp = I915_READ(reg);
2663 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
357555c0 2664
139ccd3f
JB		 2665 if (temp & FDI_RX_BIT_LOCK ||
2666 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
2667 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2668 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
2669 i);
2670 break;
2671 }
2672 udelay(1); /* should be 0.5us */
2673 }
2674 if (i == 4) {
2675 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2);
2676 continue;
2677 }
357555c0 2678
139ccd3f 2679 /* Train 2 */
357555c0
JB		 2680 reg = FDI_TX_CTL(pipe);
2681 temp = I915_READ(reg);
139ccd3f
JB		 2682 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2683 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
2684 I915_WRITE(reg, temp);
2685
2686 reg = FDI_RX_CTL(pipe);
2687 temp = I915_READ(reg);
2688 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2689 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
357555c0
JB		 2690 I915_WRITE(reg, temp);
2691
2692 POSTING_READ(reg);
139ccd3f 2693 udelay(2); /* should be 1.5us */
357555c0 2694
139ccd3f
JB		 2695 for (i = 0; i < 4; i++) {
2696 reg = FDI_RX_IIR(pipe);
2697 temp = I915_READ(reg);
2698 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
357555c0 2699
139ccd3f
JB		 2700 if (temp & FDI_RX_SYMBOL_LOCK ||
2701 (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) {
2702 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2703 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
2704 i);
2705 goto train_done;
2706 }
2707 udelay(2); /* should be 1.5us */
357555c0 2708 }
139ccd3f
JB		 2709 if (i == 4)
2710 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2);
357555c0 2711 }
357555c0 2712
139ccd3f 2713train_done:
357555c0
JB		 2714 DRM_DEBUG_KMS("FDI train done.\n");
2715}
2716
88cefb6c 2717static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
2c07245f 2718{
88cefb6c 2719 struct drm_device *dev = intel_crtc->base.dev;
2c07245f 2720 struct drm_i915_private *dev_priv = dev->dev_private;
2c07245f 2721 int pipe = intel_crtc->pipe;
5eddb70b 2722 u32 reg, temp;
79e53945 2723
c64e311e 2724
c98e9dcf 2725 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
5eddb70b
CW		 2726 reg = FDI_RX_CTL(pipe);
2727 temp = I915_READ(reg);
627eb5a3
DV		 2728 temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
2729 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
dfd07d72 2730 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
5eddb70b
CW		 2731 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
2732
2733 POSTING_READ(reg);
c98e9dcf
JB		 2734 udelay(200);
2735
2736 /* Switch from Rawclk to PCDclk */
5eddb70b
CW		 2737 temp = I915_READ(reg);
2738 I915_WRITE(reg, temp | FDI_PCDCLK);
2739
2740 POSTING_READ(reg);
c98e9dcf
JB		 2741 udelay(200);
2742
20749730
PZ		 2743 /* Enable CPU FDI TX PLL, always on for Ironlake */
2744 reg = FDI_TX_CTL(pipe);
2745 temp = I915_READ(reg);
2746 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
2747 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
5eddb70b 2748
20749730
PZ		 2749 POSTING_READ(reg);
2750 udelay(100);
6be4a607 2751 }
0e23b99d
JB		 2752}
2753
88cefb6c
DV		 2754static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
2755{
2756 struct drm_device *dev = intel_crtc->base.dev;
2757 struct drm_i915_private *dev_priv = dev->dev_private;
2758 int pipe = intel_crtc->pipe;
2759 u32 reg, temp;
2760
2761 /* Switch from PCDclk to Rawclk */
2762 reg = FDI_RX_CTL(pipe);
2763 temp = I915_READ(reg);
2764 I915_WRITE(reg, temp & ~FDI_PCDCLK);
2765
2766 /* Disable CPU FDI TX PLL */
2767 reg = FDI_TX_CTL(pipe);
2768 temp = I915_READ(reg);
2769 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
2770
2771 POSTING_READ(reg);
2772 udelay(100);
2773
2774 reg = FDI_RX_CTL(pipe);
2775 temp = I915_READ(reg);
2776 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
2777
2778 /* Wait for the clocks to turn off. */
2779 POSTING_READ(reg);
2780 udelay(100);
2781}
2782
0fc932b8
JB		 2783static void ironlake_fdi_disable(struct drm_crtc *crtc)
2784{
2785 struct drm_device *dev = crtc->dev;
2786 struct drm_i915_private *dev_priv = dev->dev_private;
2787 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2788 int pipe = intel_crtc->pipe;
2789 u32 reg, temp;
2790
2791 /* disable CPU FDI tx and PCH FDI rx */
2792 reg = FDI_TX_CTL(pipe);
2793 temp = I915_READ(reg);
2794 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
2795 POSTING_READ(reg);
2796
2797 reg = FDI_RX_CTL(pipe);
2798 temp = I915_READ(reg);
2799 temp &= ~(0x7 << 16);
dfd07d72 2800 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
0fc932b8
JB		 2801 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
2802
2803 POSTING_READ(reg);
2804 udelay(100);
2805
2806 /* Ironlake workaround, disable clock pointer after downing FDI */
6f06ce18
JB		 2807 if (HAS_PCH_IBX(dev)) {
2808 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
6f06ce18 2809 }
0fc932b8
JB		 2810
2811 /* still set train pattern 1 */
2812 reg = FDI_TX_CTL(pipe);
2813 temp = I915_READ(reg);
2814 temp &= ~FDI_LINK_TRAIN_NONE;
2815 temp |= FDI_LINK_TRAIN_PATTERN_1;
2816 I915_WRITE(reg, temp);
2817
2818 reg = FDI_RX_CTL(pipe);
2819 temp = I915_READ(reg);
2820 if (HAS_PCH_CPT(dev)) {
2821 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2822 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2823 } else {
2824 temp &= ~FDI_LINK_TRAIN_NONE;
2825 temp |= FDI_LINK_TRAIN_PATTERN_1;
2826 }
2827 /* BPC in FDI rx is consistent with that in PIPECONF */
2828 temp &= ~(0x07 << 16);
dfd07d72 2829 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
0fc932b8
JB		 2830 I915_WRITE(reg, temp);
2831
2832 POSTING_READ(reg);
2833 udelay(100);
2834}
2835
5bb61643
CW		 2836static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
2837{
2838 struct drm_device *dev = crtc->dev;
2839 struct drm_i915_private *dev_priv = dev->dev_private;
10d83730 2840 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5bb61643
CW		 2841 unsigned long flags;
2842 bool pending;
2843
10d83730
VS		 2844 if (i915_reset_in_progress(&dev_priv->gpu_error) ||
2845 intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
5bb61643
CW		 2846 return false;
2847
2848 spin_lock_irqsave(&dev->event_lock, flags);
2849 pending = to_intel_crtc(crtc)->unpin_work != NULL;
2850 spin_unlock_irqrestore(&dev->event_lock, flags);
2851
2852 return pending;
2853}
2854
e6c3a2a6
CW		 2855static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
2856{
0f91128d 2857 struct drm_device *dev = crtc->dev;
5bb61643 2858 struct drm_i915_private *dev_priv = dev->dev_private;
e6c3a2a6
CW		 2859
2860 if (crtc->fb == NULL)
2861 return;
2862
2c10d571
DV		 2863 WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
2864
5bb61643
CW		 2865 wait_event(dev_priv->pending_flip_queue,
2866 !intel_crtc_has_pending_flip(crtc));
2867
0f91128d
CW		 2868 mutex_lock(&dev->struct_mutex);
2869 intel_finish_fb(crtc->fb);
2870 mutex_unlock(&dev->struct_mutex);
e6c3a2a6
CW		 2871}
2872
e615efe4
ED		 2873/* Program iCLKIP clock to the desired frequency */
2874static void lpt_program_iclkip(struct drm_crtc *crtc)
2875{
2876 struct drm_device *dev = crtc->dev;
2877 struct drm_i915_private *dev_priv = dev->dev_private;
2878 u32 divsel, phaseinc, auxdiv, phasedir = 0;
2879 u32 temp;
2880
09153000
DV		 2881 mutex_lock(&dev_priv->dpio_lock);
2882
e615efe4
ED		 2883 /* It is necessary to ungate the pixclk gate prior to programming
2884 * the divisors, and gate it back when it is done.
2885 */
2886 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
2887
2888 /* Disable SSCCTL */
2889 intel_sbi_write(dev_priv, SBI_SSCCTL6,
988d6ee8
PZ		 2890 intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) |
2891 SBI_SSCCTL_DISABLE,
2892 SBI_ICLK);
e615efe4
ED		 2893
2894 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
2895 if (crtc->mode.clock == 20000) {
2896 auxdiv = 1;
2897 divsel = 0x41;
2898 phaseinc = 0x20;
2899 } else {
2900 /* The iCLK virtual clock root frequency is in MHz,
2901 * but the crtc->mode.clock in in KHz. To get the divisors,
2902 * it is necessary to divide one by another, so we
2903 * convert the virtual clock precision to KHz here for higher
2904 * precision.
2905 */
2906 u32 iclk_virtual_root_freq = 172800 * 1000;
2907 u32 iclk_pi_range = 64;
2908 u32 desired_divisor, msb_divisor_value, pi_value;
2909
2910 desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock);
2911 msb_divisor_value = desired_divisor / iclk_pi_range;
2912 pi_value = desired_divisor % iclk_pi_range;
2913
2914 auxdiv = 0;
2915 divsel = msb_divisor_value - 2;
2916 phaseinc = pi_value;
2917 }
2918
2919 /* This should not happen with any sane values */
2920 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
2921 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
2922 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
2923 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
2924
2925 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
2926 crtc->mode.clock,
2927 auxdiv,
2928 divsel,
2929 phasedir,
2930 phaseinc);
2931
2932 /* Program SSCDIVINTPHASE6 */
988d6ee8 2933 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
e615efe4
ED		 2934 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
2935 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
2936 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
2937 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
2938 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
2939 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
988d6ee8 2940 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
e615efe4
ED		 2941
2942 /* Program SSCAUXDIV */
988d6ee8 2943 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
e615efe4
ED		 2944 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
2945 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
988d6ee8 2946 intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
e615efe4
ED		 2947
2948 /* Enable modulator and associated divider */
988d6ee8 2949 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
e615efe4 2950 temp &= ~SBI_SSCCTL_DISABLE;
988d6ee8 2951 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
e615efe4
ED		 2952
2953 /* Wait for initialization time */
2954 udelay(24);
2955
2956 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
09153000
DV		 2957
2958 mutex_unlock(&dev_priv->dpio_lock);
e615efe4
ED		 2959}
2960
275f01b2
DV		 2961static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc,
2962 enum pipe pch_transcoder)
2963{
2964 struct drm_device *dev = crtc->base.dev;
2965 struct drm_i915_private *dev_priv = dev->dev_private;
2966 enum transcoder cpu_transcoder = crtc->config.cpu_transcoder;
2967
2968 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder),
2969 I915_READ(HTOTAL(cpu_transcoder)));
2970 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder),
2971 I915_READ(HBLANK(cpu_transcoder)));
2972 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder),
2973 I915_READ(HSYNC(cpu_transcoder)));
2974
2975 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder),
2976 I915_READ(VTOTAL(cpu_transcoder)));
2977 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder),
2978 I915_READ(VBLANK(cpu_transcoder)));
2979 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder),
2980 I915_READ(VSYNC(cpu_transcoder)));
2981 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder),
2982 I915_READ(VSYNCSHIFT(cpu_transcoder)));
2983}
2984
f67a559d
JB		 2985/*
2986 * Enable PCH resources required for PCH ports:
2987 * - PCH PLLs
2988 * - FDI training & RX/TX
2989 * - update transcoder timings
2990 * - DP transcoding bits
2991 * - transcoder
2992 */
2993static void ironlake_pch_enable(struct drm_crtc *crtc)
0e23b99d
JB		 2994{
2995 struct drm_device *dev = crtc->dev;
2996 struct drm_i915_private *dev_priv = dev->dev_private;
2997 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2998 int pipe = intel_crtc->pipe;
ee7b9f93 2999 u32 reg, temp;
2c07245f 3000
ab9412ba 3001 assert_pch_transcoder_disabled(dev_priv, pipe);
e7e164db 3002
cd986abb
DV		 3003 /* Write the TU size bits before fdi link training, so that error
3004 * detection works. */
3005 I915_WRITE(FDI_RX_TUSIZE1(pipe),
3006 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
3007
c98e9dcf 3008 /* For PCH output, training FDI link */
674cf967 3009 dev_priv->display.fdi_link_train(crtc);
2c07245f 3010
3ad8a208
DV		 3011 /* We need to program the right clock selection before writing the pixel
3012 * mutliplier into the DPLL. */
303b81e0 3013 if (HAS_PCH_CPT(dev)) {
ee7b9f93 3014 u32 sel;
4b645f14 3015
c98e9dcf 3016 temp = I915_READ(PCH_DPLL_SEL);
11887397
DV		 3017 temp |= TRANS_DPLL_ENABLE(pipe);
3018 sel = TRANS_DPLLB_SEL(pipe);
a43f6e0f 3019 if (intel_crtc->config.shared_dpll == DPLL_ID_PCH_PLL_B)
ee7b9f93
JB		 3020 temp |= sel;
3021 else
3022 temp &= ~sel;
c98e9dcf 3023 I915_WRITE(PCH_DPLL_SEL, temp);
c98e9dcf 3024 }
5eddb70b 3025
3ad8a208
DV		 3026 /* XXX: pch pll's can be enabled any time before we enable the PCH
3027 * transcoder, and we actually should do this to not upset any PCH
3028 * transcoder that already use the clock when we share it.
3029 *
3030 * Note that enable_shared_dpll tries to do the right thing, but
3031 * get_shared_dpll unconditionally resets the pll - we need that to have
3032 * the right LVDS enable sequence. */
3033 ironlake_enable_shared_dpll(intel_crtc);
3034
d9b6cb56
JB		 3035 /* set transcoder timing, panel must allow it */
3036 assert_panel_unlocked(dev_priv, pipe);
275f01b2 3037 ironlake_pch_transcoder_set_timings(intel_crtc, pipe);
8db9d77b 3038
303b81e0 3039 intel_fdi_normal_train(crtc);
5e84e1a4 3040
c98e9dcf
JB		 3041 /* For PCH DP, enable TRANS_DP_CTL */
3042 if (HAS_PCH_CPT(dev) &&
417e822d
KP		 3043 (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
3044 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
dfd07d72 3045 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
5eddb70b
CW		 3046 reg = TRANS_DP_CTL(pipe);
3047 temp = I915_READ(reg);
3048 temp &= ~(TRANS_DP_PORT_SEL_MASK |
220cad3c
EA		 3049 TRANS_DP_SYNC_MASK |
3050 TRANS_DP_BPC_MASK);
5eddb70b
CW		 3051 temp |= (TRANS_DP_OUTPUT_ENABLE |
3052 TRANS_DP_ENH_FRAMING);
9325c9f0 3053 temp |= bpc << 9; /* same format but at 11:9 */
c98e9dcf
JB		 3054
3055 if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
5eddb70b 3056 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
c98e9dcf 3057 if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
5eddb70b 3058 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
c98e9dcf
JB		 3059
3060 switch (intel_trans_dp_port_sel(crtc)) {
3061 case PCH_DP_B:
5eddb70b 3062 temp |= TRANS_DP_PORT_SEL_B;
c98e9dcf
JB		 3063 break;
3064 case PCH_DP_C:
5eddb70b 3065 temp |= TRANS_DP_PORT_SEL_C;
c98e9dcf
JB		 3066 break;
3067 case PCH_DP_D:
5eddb70b 3068 temp |= TRANS_DP_PORT_SEL_D;
c98e9dcf
JB		 3069 break;
3070 default:
e95d41e1 3071 BUG();
32f9d658 3072 }
2c07245f 3073
5eddb70b 3074 I915_WRITE(reg, temp);
6be4a607 3075 }
b52eb4dc 3076
b8a4f404 3077 ironlake_enable_pch_transcoder(dev_priv, pipe);
f67a559d
JB		 3078}
3079
1507e5bd
PZ		 3080static void lpt_pch_enable(struct drm_crtc *crtc)
3081{
3082 struct drm_device *dev = crtc->dev;
3083 struct drm_i915_private *dev_priv = dev->dev_private;
3084 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 3085 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
1507e5bd 3086
ab9412ba 3087 assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
1507e5bd 3088
8c52b5e8 3089 lpt_program_iclkip(crtc);
1507e5bd 3090
0540e488 3091 /* Set transcoder timing. */
275f01b2 3092 ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A);
1507e5bd 3093
937bb610 3094 lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
f67a559d
JB		 3095}
3096
e2b78267 3097static void intel_put_shared_dpll(struct intel_crtc *crtc)
ee7b9f93 3098{
e2b78267 3099 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
ee7b9f93
JB		 3100
3101 if (pll == NULL)
3102 return;
3103
3104 if (pll->refcount == 0) {
46edb027 3105 WARN(1, "bad %s refcount\n", pll->name);
ee7b9f93
JB		 3106 return;
3107 }
3108
f4a091c7
DV		 3109 if (--pll->refcount == 0) {
3110 WARN_ON(pll->on);
3111 WARN_ON(pll->active);
3112 }
3113
a43f6e0f 3114 crtc->config.shared_dpll = DPLL_ID_PRIVATE;
ee7b9f93
JB		 3115}
3116
b89a1d39 3117static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc)
ee7b9f93 3118{
e2b78267
DV		 3119 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
3120 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
3121 enum intel_dpll_id i;
ee7b9f93 3122
ee7b9f93 3123 if (pll) {
46edb027
DV		 3124 DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
3125 crtc->base.base.id, pll->name);
e2b78267 3126 intel_put_shared_dpll(crtc);
ee7b9f93
JB		 3127 }
3128
98b6bd99
DV		 3129 if (HAS_PCH_IBX(dev_priv->dev)) {
3130 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
d94ab068 3131 i = (enum intel_dpll_id) crtc->pipe;
e72f9fbf 3132 pll = &dev_priv->shared_dplls[i];
98b6bd99 3133
46edb027
DV		 3134 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
3135 crtc->base.base.id, pll->name);
98b6bd99
DV		 3136
3137 goto found;
3138 }
3139
e72f9fbf
DV		 3140 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3141 pll = &dev_priv->shared_dplls[i];
ee7b9f93
JB		 3142
3143 /* Only want to check enabled timings first */
3144 if (pll->refcount == 0)
3145 continue;
3146
b89a1d39
DV		 3147 if (memcmp(&crtc->config.dpll_hw_state, &pll->hw_state,
3148 sizeof(pll->hw_state)) == 0) {
46edb027 3149 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
e2b78267 3150 crtc->base.base.id,
46edb027 3151 pll->name, pll->refcount, pll->active);
ee7b9f93
JB		 3152
3153 goto found;
3154 }
3155 }
3156
3157 /* Ok no matching timings, maybe there's a free one? */
e72f9fbf
DV		 3158 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3159 pll = &dev_priv->shared_dplls[i];
ee7b9f93 3160 if (pll->refcount == 0) {
46edb027
DV		 3161 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
3162 crtc->base.base.id, pll->name);
ee7b9f93
JB		 3163 goto found;
3164 }
3165 }
3166
3167 return NULL;
3168
3169found:
a43f6e0f 3170 crtc->config.shared_dpll = i;
46edb027
DV		 3171 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name,
3172 pipe_name(crtc->pipe));
ee7b9f93 3173
cdbd2316 3174 if (pll->active == 0) {
66e985c0
DV		 3175 memcpy(&pll->hw_state, &crtc->config.dpll_hw_state,
3176 sizeof(pll->hw_state));
3177
46edb027 3178 DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
cdbd2316 3179 WARN_ON(pll->on);
e9d6944e 3180 assert_shared_dpll_disabled(dev_priv, pll);
ee7b9f93 3181
15bdd4cf 3182 pll->mode_set(dev_priv, pll);
cdbd2316
DV		 3183 }
3184 pll->refcount++;
e04c7350 3185
ee7b9f93
JB		 3186 return pll;
3187}
3188
a1520318 3189static void cpt_verify_modeset(struct drm_device *dev, int pipe)
d4270e57
JB		 3190{
3191 struct drm_i915_private *dev_priv = dev->dev_private;
23670b32 3192 int dslreg = PIPEDSL(pipe);
d4270e57
JB		 3193 u32 temp;
3194
3195 temp = I915_READ(dslreg);
3196 udelay(500);
3197 if (wait_for(I915_READ(dslreg) != temp, 5)) {
d4270e57 3198 if (wait_for(I915_READ(dslreg) != temp, 5))
84f44ce7 3199 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe));
d4270e57
JB		 3200 }
3201}
3202
b074cec8
JB		 3203static void ironlake_pfit_enable(struct intel_crtc *crtc)
3204{
3205 struct drm_device *dev = crtc->base.dev;
3206 struct drm_i915_private *dev_priv = dev->dev_private;
3207 int pipe = crtc->pipe;
3208
0ef37f3f 3209 if (crtc->config.pch_pfit.size) {
b074cec8
JB		 3210 /* Force use of hard-coded filter coefficients
3211 * as some pre-programmed values are broken,
3212 * e.g. x201.
3213 */
3214 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
3215 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
3216 PF_PIPE_SEL_IVB(pipe));
3217 else
3218 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
3219 I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos);
3220 I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size);
d4270e57
JB		 3221 }
3222}
3223
bb53d4ae
VS		 3224static void intel_enable_planes(struct drm_crtc *crtc)
3225{
3226 struct drm_device *dev = crtc->dev;
3227 enum pipe pipe = to_intel_crtc(crtc)->pipe;
3228 struct intel_plane *intel_plane;
3229
3230 list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head)
3231 if (intel_plane->pipe == pipe)
3232 intel_plane_restore(&intel_plane->base);
3233}
3234
3235static void intel_disable_planes(struct drm_crtc *crtc)
3236{
3237 struct drm_device *dev = crtc->dev;
3238 enum pipe pipe = to_intel_crtc(crtc)->pipe;
3239 struct intel_plane *intel_plane;
3240
3241 list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head)
3242 if (intel_plane->pipe == pipe)
3243 intel_plane_disable(&intel_plane->base);
3244}
3245
f67a559d
JB		 3246static void ironlake_crtc_enable(struct drm_crtc *crtc)
3247{
3248 struct drm_device *dev = crtc->dev;
3249 struct drm_i915_private *dev_priv = dev->dev_private;
3250 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3251 struct intel_encoder *encoder;
f67a559d
JB		 3252 int pipe = intel_crtc->pipe;
3253 int plane = intel_crtc->plane;
f67a559d 3254
08a48469
DV		 3255 WARN_ON(!crtc->enabled);
3256
f67a559d
JB		 3257 if (intel_crtc->active)
3258 return;
3259
3260 intel_crtc->active = true;
8664281b
PZ		 3261
3262 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3263 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3264
f67a559d
JB		 3265 intel_update_watermarks(dev);
3266
f6736a1a 3267 for_each_encoder_on_crtc(dev, crtc, encoder)
952735ee
DV		 3268 if (encoder->pre_enable)
3269 encoder->pre_enable(encoder);
f67a559d 3270
5bfe2ac0 3271 if (intel_crtc->config.has_pch_encoder) {
fff367c7
DV		 3272 /* Note: FDI PLL enabling _must_ be done before we enable the
3273 * cpu pipes, hence this is separate from all the other fdi/pch
3274 * enabling. */
88cefb6c 3275 ironlake_fdi_pll_enable(intel_crtc);
46b6f814
DV		 3276 } else {
3277 assert_fdi_tx_disabled(dev_priv, pipe);
3278 assert_fdi_rx_disabled(dev_priv, pipe);
3279 }
f67a559d 3280
b074cec8 3281 ironlake_pfit_enable(intel_crtc);
f67a559d 3282
9c54c0dd
JB		 3283 /*
3284 * On ILK+ LUT must be loaded before the pipe is running but with
3285 * clocks enabled
3286 */
3287 intel_crtc_load_lut(crtc);
3288
5bfe2ac0 3289 intel_enable_pipe(dev_priv, pipe,
23538ef1 3290 intel_crtc->config.has_pch_encoder, false);
f67a559d 3291 intel_enable_plane(dev_priv, plane, pipe);
bb53d4ae 3292 intel_enable_planes(crtc);
5c38d48c 3293 intel_crtc_update_cursor(crtc, true);
f67a559d 3294
5bfe2ac0 3295 if (intel_crtc->config.has_pch_encoder)
f67a559d 3296 ironlake_pch_enable(crtc);
c98e9dcf 3297
d1ebd816 3298 mutex_lock(&dev->struct_mutex);
bed4a673 3299 intel_update_fbc(dev);
d1ebd816
BW		 3300 mutex_unlock(&dev->struct_mutex);
3301
fa5c73b1
DV		 3302 for_each_encoder_on_crtc(dev, crtc, encoder)
3303 encoder->enable(encoder);
61b77ddd
DV		 3304
3305 if (HAS_PCH_CPT(dev))
a1520318 3306 cpt_verify_modeset(dev, intel_crtc->pipe);
6ce94100
DV		 3307
3308 /*
3309 * There seems to be a race in PCH platform hw (at least on some
3310 * outputs) where an enabled pipe still completes any pageflip right
3311 * away (as if the pipe is off) instead of waiting for vblank. As soon
3312 * as the first vblank happend, everything works as expected. Hence just
3313 * wait for one vblank before returning to avoid strange things
3314 * happening.
3315 */
3316 intel_wait_for_vblank(dev, intel_crtc->pipe);
6be4a607
JB		 3317}
3318
42db64ef
PZ		 3319/* IPS only exists on ULT machines and is tied to pipe A. */
3320static bool hsw_crtc_supports_ips(struct intel_crtc *crtc)
3321{
f5adf94e 3322 return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A;
42db64ef
PZ		 3323}
3324
3325static void hsw_enable_ips(struct intel_crtc *crtc)
3326{
3327 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
3328
3329 if (!crtc->config.ips_enabled)
3330 return;
3331
3332 /* We can only enable IPS after we enable a plane and wait for a vblank.
3333 * We guarantee that the plane is enabled by calling intel_enable_ips
3334 * only after intel_enable_plane. And intel_enable_plane already waits
3335 * for a vblank, so all we need to do here is to enable the IPS bit. */
3336 assert_plane_enabled(dev_priv, crtc->plane);
3337 I915_WRITE(IPS_CTL, IPS_ENABLE);
3338}
3339
3340static void hsw_disable_ips(struct intel_crtc *crtc)
3341{
3342 struct drm_device *dev = crtc->base.dev;
3343 struct drm_i915_private *dev_priv = dev->dev_private;
3344
3345 if (!crtc->config.ips_enabled)
3346 return;
3347
3348 assert_plane_enabled(dev_priv, crtc->plane);
3349 I915_WRITE(IPS_CTL, 0);
3350
3351 /* We need to wait for a vblank before we can disable the plane. */
3352 intel_wait_for_vblank(dev, crtc->pipe);
3353}
3354
4f771f10
PZ		 3355static void haswell_crtc_enable(struct drm_crtc *crtc)
3356{
3357 struct drm_device *dev = crtc->dev;
3358 struct drm_i915_private *dev_priv = dev->dev_private;
3359 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3360 struct intel_encoder *encoder;
3361 int pipe = intel_crtc->pipe;
3362 int plane = intel_crtc->plane;
4f771f10
PZ		 3363
3364 WARN_ON(!crtc->enabled);
3365
3366 if (intel_crtc->active)
3367 return;
3368
3369 intel_crtc->active = true;
8664281b
PZ		 3370
3371 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3372 if (intel_crtc->config.has_pch_encoder)
3373 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3374
4f771f10
PZ		 3375 intel_update_watermarks(dev);
3376
5bfe2ac0 3377 if (intel_crtc->config.has_pch_encoder)
04945641 3378 dev_priv->display.fdi_link_train(crtc);
4f771f10
PZ		 3379
3380 for_each_encoder_on_crtc(dev, crtc, encoder)
3381 if (encoder->pre_enable)
3382 encoder->pre_enable(encoder);
3383
1f544388 3384 intel_ddi_enable_pipe_clock(intel_crtc);
4f771f10 3385
b074cec8 3386 ironlake_pfit_enable(intel_crtc);
4f771f10
PZ		 3387
3388 /*
3389 * On ILK+ LUT must be loaded before the pipe is running but with
3390 * clocks enabled
3391 */
3392 intel_crtc_load_lut(crtc);
3393
1f544388 3394 intel_ddi_set_pipe_settings(crtc);
8228c251 3395 intel_ddi_enable_transcoder_func(crtc);
4f771f10 3396
5bfe2ac0 3397 intel_enable_pipe(dev_priv, pipe,
23538ef1 3398 intel_crtc->config.has_pch_encoder, false);
4f771f10 3399 intel_enable_plane(dev_priv, plane, pipe);
bb53d4ae 3400 intel_enable_planes(crtc);
5c38d48c 3401 intel_crtc_update_cursor(crtc, true);
4f771f10 3402
42db64ef
PZ		 3403 hsw_enable_ips(intel_crtc);
3404
5bfe2ac0 3405 if (intel_crtc->config.has_pch_encoder)
1507e5bd 3406 lpt_pch_enable(crtc);
4f771f10
PZ		 3407
3408 mutex_lock(&dev->struct_mutex);
3409 intel_update_fbc(dev);
3410 mutex_unlock(&dev->struct_mutex);
3411
8807e55b 3412 for_each_encoder_on_crtc(dev, crtc, encoder) {
4f771f10 3413 encoder->enable(encoder);
8807e55b
JN		 3414 intel_opregion_notify_encoder(encoder, true);
3415 }
4f771f10 3416
4f771f10
PZ		 3417 /*
3418 * There seems to be a race in PCH platform hw (at least on some
3419 * outputs) where an enabled pipe still completes any pageflip right
3420 * away (as if the pipe is off) instead of waiting for vblank. As soon
3421 * as the first vblank happend, everything works as expected. Hence just
3422 * wait for one vblank before returning to avoid strange things
3423 * happening.
3424 */
3425 intel_wait_for_vblank(dev, intel_crtc->pipe);
3426}
3427
3f8dce3a
DV		 3428static void ironlake_pfit_disable(struct intel_crtc *crtc)
3429{
3430 struct drm_device *dev = crtc->base.dev;
3431 struct drm_i915_private *dev_priv = dev->dev_private;
3432 int pipe = crtc->pipe;
3433
3434 /* To avoid upsetting the power well on haswell only disable the pfit if
3435 * it's in use. The hw state code will make sure we get this right. */
3436 if (crtc->config.pch_pfit.size) {
3437 I915_WRITE(PF_CTL(pipe), 0);
3438 I915_WRITE(PF_WIN_POS(pipe), 0);
3439 I915_WRITE(PF_WIN_SZ(pipe), 0);
3440 }
3441}
3442
6be4a607
JB		 3443static void ironlake_crtc_disable(struct drm_crtc *crtc)
3444{
3445 struct drm_device *dev = crtc->dev;
3446 struct drm_i915_private *dev_priv = dev->dev_private;
3447 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3448 struct intel_encoder *encoder;
6be4a607
JB		 3449 int pipe = intel_crtc->pipe;
3450 int plane = intel_crtc->plane;
5eddb70b 3451 u32 reg, temp;
b52eb4dc 3452
ef9c3aee 3453
f7abfe8b
CW		 3454 if (!intel_crtc->active)
3455 return;
3456
ea9d758d
DV		 3457 for_each_encoder_on_crtc(dev, crtc, encoder)
3458 encoder->disable(encoder);
3459
e6c3a2a6 3460 intel_crtc_wait_for_pending_flips(crtc);
6be4a607 3461 drm_vblank_off(dev, pipe);
913d8d11 3462
5c3fe8b0 3463 if (dev_priv->fbc.plane == plane)
973d04f9 3464 intel_disable_fbc(dev);
2c07245f 3465
0d5b8c61 3466 intel_crtc_update_cursor(crtc, false);
bb53d4ae 3467 intel_disable_planes(crtc);
0d5b8c61
VS		 3468 intel_disable_plane(dev_priv, plane, pipe);
3469
d925c59a
DV		 3470 if (intel_crtc->config.has_pch_encoder)
3471 intel_set_pch_fifo_underrun_reporting(dev, pipe, false);
3472
b24e7179 3473 intel_disable_pipe(dev_priv, pipe);
32f9d658 3474
3f8dce3a 3475 ironlake_pfit_disable(intel_crtc);
2c07245f 3476
bf49ec8c
DV		 3477 for_each_encoder_on_crtc(dev, crtc, encoder)
3478 if (encoder->post_disable)
3479 encoder->post_disable(encoder);
2c07245f 3480
d925c59a
DV		 3481 if (intel_crtc->config.has_pch_encoder) {
3482 ironlake_fdi_disable(crtc);
913d8d11 3483
d925c59a
DV		 3484 ironlake_disable_pch_transcoder(dev_priv, pipe);
3485 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
6be4a607 3486
d925c59a
DV		 3487 if (HAS_PCH_CPT(dev)) {
3488 /* disable TRANS_DP_CTL */
3489 reg = TRANS_DP_CTL(pipe);
3490 temp = I915_READ(reg);
3491 temp &= ~(TRANS_DP_OUTPUT_ENABLE |
3492 TRANS_DP_PORT_SEL_MASK);
3493 temp |= TRANS_DP_PORT_SEL_NONE;
3494 I915_WRITE(reg, temp);
3495
3496 /* disable DPLL_SEL */
3497 temp = I915_READ(PCH_DPLL_SEL);
11887397 3498 temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe));
d925c59a 3499 I915_WRITE(PCH_DPLL_SEL, temp);
9db4a9c7 3500 }
e3421a18 3501
d925c59a 3502 /* disable PCH DPLL */
e72f9fbf 3503 intel_disable_shared_dpll(intel_crtc);
8db9d77b 3504
d925c59a
DV		 3505 ironlake_fdi_pll_disable(intel_crtc);
3506 }
6b383a7f 3507
f7abfe8b 3508 intel_crtc->active = false;
6b383a7f 3509 intel_update_watermarks(dev);
d1ebd816
BW		 3510
3511 mutex_lock(&dev->struct_mutex);
6b383a7f 3512 intel_update_fbc(dev);
d1ebd816 3513 mutex_unlock(&dev->struct_mutex);
6be4a607 3514}
1b3c7a47 3515
4f771f10 3516static void haswell_crtc_disable(struct drm_crtc *crtc)
ee7b9f93 3517{
4f771f10
PZ		 3518 struct drm_device *dev = crtc->dev;
3519 struct drm_i915_private *dev_priv = dev->dev_private;
ee7b9f93 3520 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4f771f10
PZ		 3521 struct intel_encoder *encoder;
3522 int pipe = intel_crtc->pipe;
3523 int plane = intel_crtc->plane;
3b117c8f 3524 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
ee7b9f93 3525
4f771f10
PZ		 3526 if (!intel_crtc->active)
3527 return;
3528
8807e55b
JN		 3529 for_each_encoder_on_crtc(dev, crtc, encoder) {
3530 intel_opregion_notify_encoder(encoder, false);
4f771f10 3531 encoder->disable(encoder);
8807e55b 3532 }
4f771f10
PZ		 3533
3534 intel_crtc_wait_for_pending_flips(crtc);
3535 drm_vblank_off(dev, pipe);
4f771f10 3536
891348b2 3537 /* FBC must be disabled before disabling the plane on HSW. */
5c3fe8b0 3538 if (dev_priv->fbc.plane == plane)
4f771f10
PZ		 3539 intel_disable_fbc(dev);
3540
42db64ef
PZ		 3541 hsw_disable_ips(intel_crtc);
3542
0d5b8c61 3543 intel_crtc_update_cursor(crtc, false);
bb53d4ae 3544 intel_disable_planes(crtc);
891348b2
RV		 3545 intel_disable_plane(dev_priv, plane, pipe);
3546
8664281b
PZ		 3547 if (intel_crtc->config.has_pch_encoder)
3548 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false);
4f771f10
PZ		 3549 intel_disable_pipe(dev_priv, pipe);
3550
ad80a810 3551 intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
4f771f10 3552
3f8dce3a 3553 ironlake_pfit_disable(intel_crtc);
4f771f10 3554
1f544388 3555 intel_ddi_disable_pipe_clock(intel_crtc);
4f771f10
PZ		 3556
3557 for_each_encoder_on_crtc(dev, crtc, encoder)
3558 if (encoder->post_disable)
3559 encoder->post_disable(encoder);
3560
88adfff1 3561 if (intel_crtc->config.has_pch_encoder) {
ab4d966c 3562 lpt_disable_pch_transcoder(dev_priv);
8664281b 3563 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
1ad960f2 3564 intel_ddi_fdi_disable(crtc);
83616634 3565 }
4f771f10
PZ		 3566
3567 intel_crtc->active = false;
3568 intel_update_watermarks(dev);
3569
3570 mutex_lock(&dev->struct_mutex);
3571 intel_update_fbc(dev);
3572 mutex_unlock(&dev->struct_mutex);
3573}
3574
ee7b9f93
JB		 3575static void ironlake_crtc_off(struct drm_crtc *crtc)
3576{
3577 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
e72f9fbf 3578 intel_put_shared_dpll(intel_crtc);
ee7b9f93
JB		 3579}
3580
6441ab5f
PZ		 3581static void haswell_crtc_off(struct drm_crtc *crtc)
3582{
3583 intel_ddi_put_crtc_pll(crtc);
3584}
3585
02e792fb
DV		 3586static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
3587{
02e792fb 3588 if (!enable && intel_crtc->overlay) {
23f09ce3 3589 struct drm_device *dev = intel_crtc->base.dev;
ce453d81 3590 struct drm_i915_private *dev_priv = dev->dev_private;
03f77ea5 3591
23f09ce3 3592 mutex_lock(&dev->struct_mutex);
ce453d81
CW		 3593 dev_priv->mm.interruptible = false;
3594 (void) intel_overlay_switch_off(intel_crtc->overlay);
3595 dev_priv->mm.interruptible = true;
23f09ce3 3596 mutex_unlock(&dev->struct_mutex);
02e792fb 3597 }
02e792fb 3598
5dcdbcb0
CW		 3599 /* Let userspace switch the overlay on again. In most cases userspace
3600 * has to recompute where to put it anyway.
3601 */
02e792fb
DV		 3602}
3603
61bc95c1
EE		 3604/**
3605 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
3606 * cursor plane briefly if not already running after enabling the display
3607 * plane.
3608 * This workaround avoids occasional blank screens when self refresh is
3609 * enabled.
3610 */
3611static void
3612g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe)
3613{
3614 u32 cntl = I915_READ(CURCNTR(pipe));
3615
3616 if ((cntl & CURSOR_MODE) == 0) {
3617 u32 fw_bcl_self = I915_READ(FW_BLC_SELF);
3618
3619 I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN);
3620 I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX);
3621 intel_wait_for_vblank(dev_priv->dev, pipe);
3622 I915_WRITE(CURCNTR(pipe), cntl);
3623 I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe)));
3624 I915_WRITE(FW_BLC_SELF, fw_bcl_self);
3625 }
3626}
3627
2dd24552
JB		 3628static void i9xx_pfit_enable(struct intel_crtc *crtc)
3629{
3630 struct drm_device *dev = crtc->base.dev;
3631 struct drm_i915_private *dev_priv = dev->dev_private;
3632 struct intel_crtc_config *pipe_config = &crtc->config;
3633
328d8e82 3634 if (!crtc->config.gmch_pfit.control)
2dd24552
JB		 3635 return;
3636
2dd24552 3637 /*
c0b03411
DV		 3638 * The panel fitter should only be adjusted whilst the pipe is disabled,
3639 * according to register description and PRM.
2dd24552 3640 */
c0b03411
DV		 3641 WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
3642 assert_pipe_disabled(dev_priv, crtc->pipe);
2dd24552 3643
b074cec8
JB		 3644 I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios);
3645 I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control);
5a80c45c
DV		 3646
3647 /* Border color in case we don't scale up to the full screen. Black by
3648 * default, change to something else for debugging. */
3649 I915_WRITE(BCLRPAT(crtc->pipe), 0);
2dd24552
JB		 3650}
3651
89b667f8
JB		 3652static void valleyview_crtc_enable(struct drm_crtc *crtc)
3653{
3654 struct drm_device *dev = crtc->dev;
3655 struct drm_i915_private *dev_priv = dev->dev_private;
3656 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3657 struct intel_encoder *encoder;
3658 int pipe = intel_crtc->pipe;
3659 int plane = intel_crtc->plane;
23538ef1 3660 bool is_dsi;
89b667f8
JB		 3661
3662 WARN_ON(!crtc->enabled);
3663
3664 if (intel_crtc->active)
3665 return;
3666
3667 intel_crtc->active = true;
3668 intel_update_watermarks(dev);
3669
89b667f8
JB		 3670 for_each_encoder_on_crtc(dev, crtc, encoder)
3671 if (encoder->pre_pll_enable)
3672 encoder->pre_pll_enable(encoder);
3673
23538ef1
JN		 3674 is_dsi = intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI);
3675
e9fd1c02
JN		 3676 if (!is_dsi)
3677 vlv_enable_pll(intel_crtc);
89b667f8
JB		 3678
3679 for_each_encoder_on_crtc(dev, crtc, encoder)
3680 if (encoder->pre_enable)
3681 encoder->pre_enable(encoder);
3682
2dd24552
JB		 3683 i9xx_pfit_enable(intel_crtc);
3684
63cbb074
VS		 3685 intel_crtc_load_lut(crtc);
3686
23538ef1 3687 intel_enable_pipe(dev_priv, pipe, false, is_dsi);
89b667f8 3688 intel_enable_plane(dev_priv, plane, pipe);
bb53d4ae 3689 intel_enable_planes(crtc);
5c38d48c 3690 intel_crtc_update_cursor(crtc, true);
89b667f8 3691
89b667f8 3692 intel_update_fbc(dev);
5004945f
JN		 3693
3694 for_each_encoder_on_crtc(dev, crtc, encoder)
3695 encoder->enable(encoder);
89b667f8
JB		 3696}
3697
0b8765c6 3698static void i9xx_crtc_enable(struct drm_crtc *crtc)
79e53945
JB		 3699{
3700 struct drm_device *dev = crtc->dev;
79e53945
JB		 3701 struct drm_i915_private *dev_priv = dev->dev_private;
3702 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3703 struct intel_encoder *encoder;
79e53945 3704 int pipe = intel_crtc->pipe;
80824003 3705 int plane = intel_crtc->plane;
79e53945 3706
08a48469
DV		 3707 WARN_ON(!crtc->enabled);
3708
f7abfe8b
CW		 3709 if (intel_crtc->active)
3710 return;
3711
3712 intel_crtc->active = true;
6b383a7f
CW		 3713 intel_update_watermarks(dev);
3714
9d6d9f19
MK		 3715 for_each_encoder_on_crtc(dev, crtc, encoder)
3716 if (encoder->pre_enable)
3717 encoder->pre_enable(encoder);
3718
f6736a1a
DV		 3719 i9xx_enable_pll(intel_crtc);
3720
2dd24552
JB		 3721 i9xx_pfit_enable(intel_crtc);
3722
63cbb074
VS		 3723 intel_crtc_load_lut(crtc);
3724
23538ef1 3725 intel_enable_pipe(dev_priv, pipe, false, false);
b24e7179 3726 intel_enable_plane(dev_priv, plane, pipe);
bb53d4ae 3727 intel_enable_planes(crtc);
22e407d7 3728 /* The fixup needs to happen before cursor is enabled */
61bc95c1
EE		 3729 if (IS_G4X(dev))
3730 g4x_fixup_plane(dev_priv, pipe);
22e407d7 3731 intel_crtc_update_cursor(crtc, true);
79e53945 3732
0b8765c6
JB		 3733 /* Give the overlay scaler a chance to enable if it's on this pipe */
3734 intel_crtc_dpms_overlay(intel_crtc, true);
ef9c3aee 3735
f440eb13 3736 intel_update_fbc(dev);
ef9c3aee 3737
fa5c73b1
DV		 3738 for_each_encoder_on_crtc(dev, crtc, encoder)
3739 encoder->enable(encoder);
0b8765c6 3740}
79e53945 3741
87476d63
DV		 3742static void i9xx_pfit_disable(struct intel_crtc *crtc)
3743{
3744 struct drm_device *dev = crtc->base.dev;
3745 struct drm_i915_private *dev_priv = dev->dev_private;
87476d63 3746
328d8e82
DV		 3747 if (!crtc->config.gmch_pfit.control)
3748 return;
87476d63 3749
328d8e82 3750 assert_pipe_disabled(dev_priv, crtc->pipe);
87476d63 3751
328d8e82
DV		 3752 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
3753 I915_READ(PFIT_CONTROL));
3754 I915_WRITE(PFIT_CONTROL, 0);
87476d63
DV		 3755}
3756
0b8765c6
JB		 3757static void i9xx_crtc_disable(struct drm_crtc *crtc)
3758{
3759 struct drm_device *dev = crtc->dev;
3760 struct drm_i915_private *dev_priv = dev->dev_private;
3761 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3762 struct intel_encoder *encoder;
0b8765c6
JB		 3763 int pipe = intel_crtc->pipe;
3764 int plane = intel_crtc->plane;
ef9c3aee 3765
f7abfe8b
CW		 3766 if (!intel_crtc->active)
3767 return;
3768
ea9d758d
DV		 3769 for_each_encoder_on_crtc(dev, crtc, encoder)
3770 encoder->disable(encoder);
3771
0b8765c6 3772 /* Give the overlay scaler a chance to disable if it's on this pipe */
e6c3a2a6
CW		 3773 intel_crtc_wait_for_pending_flips(crtc);
3774 drm_vblank_off(dev, pipe);
0b8765c6 3775
5c3fe8b0 3776 if (dev_priv->fbc.plane == plane)
973d04f9 3777 intel_disable_fbc(dev);
79e53945 3778
0d5b8c61
VS		 3779 intel_crtc_dpms_overlay(intel_crtc, false);
3780 intel_crtc_update_cursor(crtc, false);
bb53d4ae 3781 intel_disable_planes(crtc);
b24e7179 3782 intel_disable_plane(dev_priv, plane, pipe);
0d5b8c61 3783
b24e7179 3784 intel_disable_pipe(dev_priv, pipe);
24a1f16d 3785
87476d63 3786 i9xx_pfit_disable(intel_crtc);
24a1f16d 3787
89b667f8
JB		 3788 for_each_encoder_on_crtc(dev, crtc, encoder)
3789 if (encoder->post_disable)
3790 encoder->post_disable(encoder);
3791
e9fd1c02
JN		 3792 if (!intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI))
3793 i9xx_disable_pll(dev_priv, pipe);
0b8765c6 3794
f7abfe8b 3795 intel_crtc->active = false;
6b383a7f
CW		 3796 intel_update_fbc(dev);
3797 intel_update_watermarks(dev);
0b8765c6
JB		 3798}
3799
ee7b9f93
JB		 3800static void i9xx_crtc_off(struct drm_crtc *crtc)
3801{
3802}
3803
976f8a20
DV		 3804static void intel_crtc_update_sarea(struct drm_crtc *crtc,
3805 bool enabled)
2c07245f
ZW		 3806{
3807 struct drm_device *dev = crtc->dev;
3808 struct drm_i915_master_private *master_priv;
3809 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3810 int pipe = intel_crtc->pipe;
79e53945
JB		 3811
3812 if (!dev->primary->master)
3813 return;
3814
3815 master_priv = dev->primary->master->driver_priv;
3816 if (!master_priv->sarea_priv)
3817 return;
3818
79e53945
JB		 3819 switch (pipe) {
3820 case 0:
3821 master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
3822 master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
3823 break;
3824 case 1:
3825 master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
3826 master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
3827 break;
3828 default:
9db4a9c7 3829 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
79e53945
JB		 3830 break;
3831 }
79e53945
JB		 3832}
3833
976f8a20
DV		 3834/**
3835 * Sets the power management mode of the pipe and plane.
3836 */
3837void intel_crtc_update_dpms(struct drm_crtc *crtc)
3838{
3839 struct drm_device *dev = crtc->dev;
3840 struct drm_i915_private *dev_priv = dev->dev_private;
3841 struct intel_encoder *intel_encoder;
3842 bool enable = false;
3843
3844 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
3845 enable |= intel_encoder->connectors_active;
3846
3847 if (enable)
3848 dev_priv->display.crtc_enable(crtc);
3849 else
3850 dev_priv->display.crtc_disable(crtc);
3851
3852 intel_crtc_update_sarea(crtc, enable);
3853}
3854
cdd59983
CW		 3855static void intel_crtc_disable(struct drm_crtc *crtc)
3856{
cdd59983 3857 struct drm_device *dev = crtc->dev;
976f8a20 3858 struct drm_connector *connector;
ee7b9f93 3859 struct drm_i915_private *dev_priv = dev->dev_private;
7b9f35a6 3860 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
cdd59983 3861
976f8a20
DV		 3862 /* crtc should still be enabled when we disable it. */
3863 WARN_ON(!crtc->enabled);
3864
3865 dev_priv->display.crtc_disable(crtc);
c77bf565 3866 intel_crtc->eld_vld = false;
976f8a20 3867 intel_crtc_update_sarea(crtc, false);
ee7b9f93
JB		 3868 dev_priv->display.off(crtc);
3869
931872fc
CW		 3870 assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
3871 assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
cdd59983
CW		 3872
3873 if (crtc->fb) {
3874 mutex_lock(&dev->struct_mutex);
1690e1eb 3875 intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
cdd59983 3876 mutex_unlock(&dev->struct_mutex);
976f8a20
DV		 3877 crtc->fb = NULL;
3878 }
3879
3880 /* Update computed state. */
3881 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3882 if (!connector->encoder || !connector->encoder->crtc)
3883 continue;
3884
3885 if (connector->encoder->crtc != crtc)
3886 continue;
3887
3888 connector->dpms = DRM_MODE_DPMS_OFF;
3889 to_intel_encoder(connector->encoder)->connectors_active = false;
cdd59983
CW		 3890 }
3891}
3892
ea5b213a 3893void intel_encoder_destroy(struct drm_encoder *encoder)
7e7d76c3 3894{
4ef69c7a 3895 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
ea5b213a 3896
ea5b213a
CW		 3897 drm_encoder_cleanup(encoder);
3898 kfree(intel_encoder);
7e7d76c3
JB		 3899}
3900
9237329d 3901/* Simple dpms helper for encoders with just one connector, no cloning and only
5ab432ef
DV		 3902 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
3903 * state of the entire output pipe. */
9237329d 3904static void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
7e7d76c3 3905{
5ab432ef
DV		 3906 if (mode == DRM_MODE_DPMS_ON) {
3907 encoder->connectors_active = true;
3908
b2cabb0e 3909 intel_crtc_update_dpms(encoder->base.crtc);
5ab432ef
DV		 3910 } else {
3911 encoder->connectors_active = false;
3912
b2cabb0e 3913 intel_crtc_update_dpms(encoder->base.crtc);
5ab432ef 3914 }
79e53945
JB		 3915}
3916
0a91ca29
DV		 3917/* Cross check the actual hw state with our own modeset state tracking (and it's
3918 * internal consistency). */
b980514c 3919static void intel_connector_check_state(struct intel_connector *connector)
79e53945 3920{
0a91ca29
DV		 3921 if (connector->get_hw_state(connector)) {
3922 struct intel_encoder *encoder = connector->encoder;
3923 struct drm_crtc *crtc;
3924 bool encoder_enabled;
3925 enum pipe pipe;
3926
3927 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
3928 connector->base.base.id,
3929 drm_get_connector_name(&connector->base));
3930
3931 WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
3932 "wrong connector dpms state\n");
3933 WARN(connector->base.encoder != &encoder->base,
3934 "active connector not linked to encoder\n");
3935 WARN(!encoder->connectors_active,
3936 "encoder->connectors_active not set\n");
3937
3938 encoder_enabled = encoder->get_hw_state(encoder, &pipe);
3939 WARN(!encoder_enabled, "encoder not enabled\n");
3940 if (WARN_ON(!encoder->base.crtc))
3941 return;
3942
3943 crtc = encoder->base.crtc;
3944
3945 WARN(!crtc->enabled, "crtc not enabled\n");
3946 WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
3947 WARN(pipe != to_intel_crtc(crtc)->pipe,
3948 "encoder active on the wrong pipe\n");
3949 }
79e53945
JB		 3950}
3951
5ab432ef
DV		 3952/* Even simpler default implementation, if there's really no special case to
3953 * consider. */
3954void intel_connector_dpms(struct drm_connector *connector, int mode)
79e53945 3955{
5ab432ef 3956 struct intel_encoder *encoder = intel_attached_encoder(connector);
d4270e57 3957
5ab432ef
DV		 3958 /* All the simple cases only support two dpms states. */
3959 if (mode != DRM_MODE_DPMS_ON)
3960 mode = DRM_MODE_DPMS_OFF;
d4270e57 3961
5ab432ef
DV		 3962 if (mode == connector->dpms)
3963 return;
3964
3965 connector->dpms = mode;
3966
3967 /* Only need to change hw state when actually enabled */
3968 if (encoder->base.crtc)
3969 intel_encoder_dpms(encoder, mode);
3970 else
8af6cf88 3971 WARN_ON(encoder->connectors_active != false);
0a91ca29 3972
b980514c 3973 intel_modeset_check_state(connector->dev);
79e53945
JB		 3974}
3975
f0947c37
DV		 3976/* Simple connector->get_hw_state implementation for encoders that support only
3977 * one connector and no cloning and hence the encoder state determines the state
3978 * of the connector. */
3979bool intel_connector_get_hw_state(struct intel_connector *connector)
ea5b213a 3980{
24929352 3981 enum pipe pipe = 0;
f0947c37 3982 struct intel_encoder *encoder = connector->encoder;
ea5b213a 3983
f0947c37 3984 return encoder->get_hw_state(encoder, &pipe);
ea5b213a
CW		 3985}
3986
1857e1da
DV		 3987static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
3988 struct intel_crtc_config *pipe_config)
3989{
3990 struct drm_i915_private *dev_priv = dev->dev_private;
3991 struct intel_crtc *pipe_B_crtc =
3992 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
3993
3994 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
3995 pipe_name(pipe), pipe_config->fdi_lanes);
3996 if (pipe_config->fdi_lanes > 4) {
3997 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
3998 pipe_name(pipe), pipe_config->fdi_lanes);
3999 return false;
4000 }
4001
4002 if (IS_HASWELL(dev)) {
4003 if (pipe_config->fdi_lanes > 2) {
4004 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
4005 pipe_config->fdi_lanes);
4006 return false;
4007 } else {
4008 return true;
4009 }
4010 }
4011
4012 if (INTEL_INFO(dev)->num_pipes == 2)
4013 return true;
4014
4015 /* Ivybridge 3 pipe is really complicated */
4016 switch (pipe) {
4017 case PIPE_A:
4018 return true;
4019 case PIPE_B:
4020 if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled &&
4021 pipe_config->fdi_lanes > 2) {
4022 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4023 pipe_name(pipe), pipe_config->fdi_lanes);
4024 return false;
4025 }
4026 return true;
4027 case PIPE_C:
1e833f40 4028 if (!pipe_has_enabled_pch(pipe_B_crtc) ||
1857e1da
DV		 4029 pipe_B_crtc->config.fdi_lanes <= 2) {
4030 if (pipe_config->fdi_lanes > 2) {
4031 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4032 pipe_name(pipe), pipe_config->fdi_lanes);
4033 return false;
4034 }
4035 } else {
4036 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
4037 return false;
4038 }
4039 return true;
4040 default:
4041 BUG();
4042 }
4043}
4044
e29c22c0
DV		 4045#define RETRY 1
4046static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc,
4047 struct intel_crtc_config *pipe_config)
877d48d5 4048{
1857e1da 4049 struct drm_device *dev = intel_crtc->base.dev;
877d48d5 4050 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
ff9a6750 4051 int lane, link_bw, fdi_dotclock;
e29c22c0 4052 bool setup_ok, needs_recompute = false;
877d48d5 4053
e29c22c0 4054retry:
877d48d5
DV		 4055 /* FDI is a binary signal running at ~2.7GHz, encoding
4056 * each output octet as 10 bits. The actual frequency
4057 * is stored as a divider into a 100MHz clock, and the
4058 * mode pixel clock is stored in units of 1KHz.
4059 * Hence the bw of each lane in terms of the mode signal
4060 * is:
4061 */
4062 link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
4063
ff9a6750 4064 fdi_dotclock = adjusted_mode->clock;
ef1b460d 4065 fdi_dotclock /= pipe_config->pixel_multiplier;
877d48d5 4066
2bd89a07 4067 lane = ironlake_get_lanes_required(fdi_dotclock, link_bw,
877d48d5
DV		 4068 pipe_config->pipe_bpp);
4069
4070 pipe_config->fdi_lanes = lane;
4071
2bd89a07 4072 intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock,
877d48d5 4073 link_bw, &pipe_config->fdi_m_n);
1857e1da 4074
e29c22c0
DV		 4075 setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev,
4076 intel_crtc->pipe, pipe_config);
4077 if (!setup_ok && pipe_config->pipe_bpp > 6*3) {
4078 pipe_config->pipe_bpp -= 2*3;
4079 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
4080 pipe_config->pipe_bpp);
4081 needs_recompute = true;
4082 pipe_config->bw_constrained = true;
4083
4084 goto retry;
4085 }
4086
4087 if (needs_recompute)
4088 return RETRY;
4089
4090 return setup_ok ? 0 : -EINVAL;
877d48d5
DV		 4091}
4092
42db64ef
PZ		 4093static void hsw_compute_ips_config(struct intel_crtc *crtc,
4094 struct intel_crtc_config *pipe_config)
4095{
3c4ca58c
PZ		 4096 pipe_config->ips_enabled = i915_enable_ips &&
4097 hsw_crtc_supports_ips(crtc) &&
b6dfdc9b 4098 pipe_config->pipe_bpp <= 24;
42db64ef
PZ		 4099}
4100
a43f6e0f 4101static int intel_crtc_compute_config(struct intel_crtc *crtc,
e29c22c0 4102 struct intel_crtc_config *pipe_config)
79e53945 4103{
a43f6e0f 4104 struct drm_device *dev = crtc->base.dev;
b8cecdf5 4105 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
89749350 4106
8693a824
DL		 4107 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
4108 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
44f46b42
CW		 4109 */
4110 if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) &&
4111 adjusted_mode->hsync_start == adjusted_mode->hdisplay)
e29c22c0 4112 return -EINVAL;
44f46b42 4113
bd080ee5 4114 if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) {
5d2d38dd 4115 pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */
bd080ee5 4116 } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) {
5d2d38dd
DV		 4117 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
4118 * for lvds. */
4119 pipe_config->pipe_bpp = 8*3;
4120 }
4121
f5adf94e 4122 if (HAS_IPS(dev))
a43f6e0f
DV		 4123 hsw_compute_ips_config(crtc, pipe_config);
4124
4125 /* XXX: PCH clock sharing is done in ->mode_set, so make sure the old
4126 * clock survives for now. */
4127 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
4128 pipe_config->shared_dpll = crtc->config.shared_dpll;
42db64ef 4129
877d48d5 4130 if (pipe_config->has_pch_encoder)
a43f6e0f 4131 return ironlake_fdi_compute_config(crtc, pipe_config);
877d48d5 4132
e29c22c0 4133 return 0;
79e53945
JB		 4134}
4135
25eb05fc
JB		 4136static int valleyview_get_display_clock_speed(struct drm_device *dev)
4137{
4138 return 400000; /* FIXME */
4139}
4140
e70236a8
JB		 4141static int i945_get_display_clock_speed(struct drm_device *dev)
4142{
4143 return 400000;
4144}
79e53945 4145
e70236a8 4146static int i915_get_display_clock_speed(struct drm_device *dev)
79e53945 4147{
e70236a8
JB		 4148 return 333000;
4149}
79e53945 4150
e70236a8
JB		 4151static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
4152{
4153 return 200000;
4154}
79e53945 4155
257a7ffc
DV		 4156static int pnv_get_display_clock_speed(struct drm_device *dev)
4157{
4158 u16 gcfgc = 0;
4159
4160 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4161
4162 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4163 case GC_DISPLAY_CLOCK_267_MHZ_PNV:
4164 return 267000;
4165 case GC_DISPLAY_CLOCK_333_MHZ_PNV:
4166 return 333000;
4167 case GC_DISPLAY_CLOCK_444_MHZ_PNV:
4168 return 444000;
4169 case GC_DISPLAY_CLOCK_200_MHZ_PNV:
4170 return 200000;
4171 default:
4172 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc);
4173 case GC_DISPLAY_CLOCK_133_MHZ_PNV:
4174 return 133000;
4175 case GC_DISPLAY_CLOCK_167_MHZ_PNV:
4176 return 167000;
4177 }
4178}
4179
e70236a8
JB		 4180static int i915gm_get_display_clock_speed(struct drm_device *dev)
4181{
4182 u16 gcfgc = 0;
79e53945 4183
e70236a8
JB		 4184 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4185
4186 if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
4187 return 133000;
4188 else {
4189 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4190 case GC_DISPLAY_CLOCK_333_MHZ:
4191 return 333000;
4192 default:
4193 case GC_DISPLAY_CLOCK_190_200_MHZ:
4194 return 190000;
79e53945 4195 }
e70236a8
JB		 4196 }
4197}
4198
4199static int i865_get_display_clock_speed(struct drm_device *dev)
4200{
4201 return 266000;
4202}
4203
4204static int i855_get_display_clock_speed(struct drm_device *dev)
4205{
4206 u16 hpllcc = 0;
4207 /* Assume that the hardware is in the high speed state. This
4208 * should be the default.
4209 */
4210 switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
4211 case GC_CLOCK_133_200:
4212 case GC_CLOCK_100_200:
4213 return 200000;
4214 case GC_CLOCK_166_250:
4215 return 250000;
4216 case GC_CLOCK_100_133:
79e53945 4217 return 133000;
e70236a8 4218 }
79e53945 4219
e70236a8
JB		 4220 /* Shouldn't happen */
4221 return 0;
4222}
79e53945 4223
e70236a8
JB		 4224static int i830_get_display_clock_speed(struct drm_device *dev)
4225{
4226 return 133000;
79e53945
JB		 4227}
4228
2c07245f 4229static void
a65851af 4230intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den)
2c07245f 4231{
a65851af
VS		 4232 while (*num > DATA_LINK_M_N_MASK ||
4233 *den > DATA_LINK_M_N_MASK) {
2c07245f
ZW		 4234 *num >>= 1;
4235 *den >>= 1;
4236 }
4237}
4238
a65851af
VS		 4239static void compute_m_n(unsigned int m, unsigned int n,
4240 uint32_t *ret_m, uint32_t *ret_n)
4241{
4242 *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
4243 *ret_m = div_u64((uint64_t) m * *ret_n, n);
4244 intel_reduce_m_n_ratio(ret_m, ret_n);
4245}
4246
e69d0bc1
DV		 4247void
4248intel_link_compute_m_n(int bits_per_pixel, int nlanes,
4249 int pixel_clock, int link_clock,
4250 struct intel_link_m_n *m_n)
2c07245f 4251{
e69d0bc1 4252 m_n->tu = 64;
a65851af
VS		 4253
4254 compute_m_n(bits_per_pixel * pixel_clock,
4255 link_clock * nlanes * 8,
4256 &m_n->gmch_m, &m_n->gmch_n);
4257
4258 compute_m_n(pixel_clock, link_clock,
4259 &m_n->link_m, &m_n->link_n);
2c07245f
ZW		 4260}
4261
a7615030
CW		 4262static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
4263{
72bbe58c
KP		 4264 if (i915_panel_use_ssc >= 0)
4265 return i915_panel_use_ssc != 0;
41aa3448 4266 return dev_priv->vbt.lvds_use_ssc
435793df 4267 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
a7615030
CW		 4268}
4269
a0c4da24
JB		 4270static int vlv_get_refclk(struct drm_crtc *crtc)
4271{
4272 struct drm_device *dev = crtc->dev;
4273 struct drm_i915_private *dev_priv = dev->dev_private;
4274 int refclk = 27000; /* for DP & HDMI */
4275
4276 return 100000; /* only one validated so far */
4277
4278 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
4279 refclk = 96000;
4280 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
4281 if (intel_panel_use_ssc(dev_priv))
4282 refclk = 100000;
4283 else
4284 refclk = 96000;
4285 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
4286 refclk = 100000;
4287 }
4288
4289 return refclk;
4290}
4291
c65d77d8
JB		 4292static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
4293{
4294 struct drm_device *dev = crtc->dev;
4295 struct drm_i915_private *dev_priv = dev->dev_private;
4296 int refclk;
4297
a0c4da24
JB		 4298 if (IS_VALLEYVIEW(dev)) {
4299 refclk = vlv_get_refclk(crtc);
4300 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
c65d77d8 4301 intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
41aa3448 4302 refclk = dev_priv->vbt.lvds_ssc_freq * 1000;
c65d77d8
JB		 4303 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4304 refclk / 1000);
4305 } else if (!IS_GEN2(dev)) {
4306 refclk = 96000;
4307 } else {
4308 refclk = 48000;
4309 }
4310
4311 return refclk;
4312}
4313
7429e9d4 4314static uint32_t pnv_dpll_compute_fp(struct dpll *dpll)
c65d77d8 4315{
7df00d7a 4316 return (1 << dpll->n) << 16 | dpll->m2;
7429e9d4 4317}
f47709a9 4318
7429e9d4
DV		 4319static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll)
4320{
4321 return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
c65d77d8
JB		 4322}
4323
f47709a9 4324static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
a7516a05
JB		 4325 intel_clock_t *reduced_clock)
4326{
f47709a9 4327 struct drm_device *dev = crtc->base.dev;
a7516a05 4328 struct drm_i915_private *dev_priv = dev->dev_private;
f47709a9 4329 int pipe = crtc->pipe;
a7516a05
JB		 4330 u32 fp, fp2 = 0;
4331
4332 if (IS_PINEVIEW(dev)) {
7429e9d4 4333 fp = pnv_dpll_compute_fp(&crtc->config.dpll);
a7516a05 4334 if (reduced_clock)
7429e9d4 4335 fp2 = pnv_dpll_compute_fp(reduced_clock);
a7516a05 4336 } else {
7429e9d4 4337 fp = i9xx_dpll_compute_fp(&crtc->config.dpll);
a7516a05 4338 if (reduced_clock)
7429e9d4 4339 fp2 = i9xx_dpll_compute_fp(reduced_clock);
a7516a05
JB		 4340 }
4341
4342 I915_WRITE(FP0(pipe), fp);
8bcc2795 4343 crtc->config.dpll_hw_state.fp0 = fp;
a7516a05 4344
f47709a9
DV		 4345 crtc->lowfreq_avail = false;
4346 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
a7516a05
JB		 4347 reduced_clock && i915_powersave) {
4348 I915_WRITE(FP1(pipe), fp2);
8bcc2795 4349 crtc->config.dpll_hw_state.fp1 = fp2;
f47709a9 4350 crtc->lowfreq_avail = true;
a7516a05
JB		 4351 } else {
4352 I915_WRITE(FP1(pipe), fp);
8bcc2795 4353 crtc->config.dpll_hw_state.fp1 = fp;
a7516a05
JB		 4354 }
4355}
4356
89b667f8
JB		 4357static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv)
4358{
4359 u32 reg_val;
4360
4361 /*
4362 * PLLB opamp always calibrates to max value of 0x3f, force enable it
4363 * and set it to a reasonable value instead.
4364 */
ae99258f 4365 reg_val = vlv_dpio_read(dev_priv, DPIO_IREF(1));
89b667f8
JB		 4366 reg_val &= 0xffffff00;
4367 reg_val |= 0x00000030;
ae99258f 4368 vlv_dpio_write(dev_priv, DPIO_IREF(1), reg_val);
89b667f8 4369
ae99258f 4370 reg_val = vlv_dpio_read(dev_priv, DPIO_CALIBRATION);
89b667f8
JB		 4371 reg_val &= 0x8cffffff;
4372 reg_val = 0x8c000000;
ae99258f 4373 vlv_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val);
89b667f8 4374
ae99258f 4375 reg_val = vlv_dpio_read(dev_priv, DPIO_IREF(1));
89b667f8 4376 reg_val &= 0xffffff00;
ae99258f 4377 vlv_dpio_write(dev_priv, DPIO_IREF(1), reg_val);
89b667f8 4378
ae99258f 4379 reg_val = vlv_dpio_read(dev_priv, DPIO_CALIBRATION);
89b667f8
JB		 4380 reg_val &= 0x00ffffff;
4381 reg_val |= 0xb0000000;
ae99258f 4382 vlv_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val);
89b667f8
JB		 4383}
4384
b551842d
DV		 4385static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
4386 struct intel_link_m_n *m_n)
4387{
4388 struct drm_device *dev = crtc->base.dev;
4389 struct drm_i915_private *dev_priv = dev->dev_private;
4390 int pipe = crtc->pipe;
4391
e3b95f1e
DV		 4392 I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4393 I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n);
4394 I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m);
4395 I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n);
b551842d
DV		 4396}
4397
4398static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
4399 struct intel_link_m_n *m_n)
4400{
4401 struct drm_device *dev = crtc->base.dev;
4402 struct drm_i915_private *dev_priv = dev->dev_private;
4403 int pipe = crtc->pipe;
4404 enum transcoder transcoder = crtc->config.cpu_transcoder;
4405
4406 if (INTEL_INFO(dev)->gen >= 5) {
4407 I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
4408 I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
4409 I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
4410 I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
4411 } else {
e3b95f1e
DV		 4412 I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4413 I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n);
4414 I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m);
4415 I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n);
b551842d
DV		 4416 }
4417}
4418
03afc4a2
DV		 4419static void intel_dp_set_m_n(struct intel_crtc *crtc)
4420{
4421 if (crtc->config.has_pch_encoder)
4422 intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4423 else
4424 intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4425}
4426
f47709a9 4427static void vlv_update_pll(struct intel_crtc *crtc)
a0c4da24 4428{
f47709a9 4429 struct drm_device *dev = crtc->base.dev;
a0c4da24 4430 struct drm_i915_private *dev_priv = dev->dev_private;
f47709a9 4431 int pipe = crtc->pipe;
89b667f8 4432 u32 dpll, mdiv;
a0c4da24 4433 u32 bestn, bestm1, bestm2, bestp1, bestp2;
198a037f 4434 u32 coreclk, reg_val, dpll_md;
a0c4da24 4435
09153000
DV		 4436 mutex_lock(&dev_priv->dpio_lock);
4437
f47709a9
DV		 4438 bestn = crtc->config.dpll.n;
4439 bestm1 = crtc->config.dpll.m1;
4440 bestm2 = crtc->config.dpll.m2;
4441 bestp1 = crtc->config.dpll.p1;
4442 bestp2 = crtc->config.dpll.p2;
a0c4da24 4443
89b667f8
JB		 4444 /* See eDP HDMI DPIO driver vbios notes doc */
4445
4446 /* PLL B needs special handling */
4447 if (pipe)
4448 vlv_pllb_recal_opamp(dev_priv);
4449
4450 /* Set up Tx target for periodic Rcomp update */
ae99258f 4451 vlv_dpio_write(dev_priv, DPIO_IREF_BCAST, 0x0100000f);
89b667f8
JB		 4452
4453 /* Disable target IRef on PLL */
ae99258f 4454 reg_val = vlv_dpio_read(dev_priv, DPIO_IREF_CTL(pipe));
89b667f8 4455 reg_val &= 0x00ffffff;
ae99258f 4456 vlv_dpio_write(dev_priv, DPIO_IREF_CTL(pipe), reg_val);
89b667f8
JB		 4457
4458 /* Disable fast lock */
ae99258f 4459 vlv_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x610);
89b667f8
JB		 4460
4461 /* Set idtafcrecal before PLL is enabled */
a0c4da24
JB		 4462 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
4463 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
4464 mdiv |= ((bestn << DPIO_N_SHIFT));
a0c4da24 4465 mdiv |= (1 << DPIO_K_SHIFT);
7df5080b
JB		 4466
4467 /*
4468 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
4469 * but we don't support that).
4470 * Note: don't use the DAC post divider as it seems unstable.
4471 */
4472 mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
ae99258f 4473 vlv_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
a0c4da24 4474
a0c4da24 4475 mdiv |= DPIO_ENABLE_CALIBRATION;
ae99258f 4476 vlv_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
a0c4da24 4477
89b667f8 4478 /* Set HBR and RBR LPF coefficients */
ff9a6750 4479 if (crtc->config.port_clock == 162000 ||
99750bd4 4480 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_ANALOG) ||
89b667f8 4481 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI))
4abb2c39 4482 vlv_dpio_write(dev_priv, DPIO_LPF_COEFF(pipe),
885b0120 4483 0x009f0003);
89b667f8 4484 else
4abb2c39 4485 vlv_dpio_write(dev_priv, DPIO_LPF_COEFF(pipe),
89b667f8
JB		 4486 0x00d0000f);
4487
4488 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
4489 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) {
4490 /* Use SSC source */
4491 if (!pipe)
ae99258f 4492 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
89b667f8
JB		 4493 0x0df40000);
4494 else
ae99258f 4495 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
89b667f8
JB		 4496 0x0df70000);
4497 } else { /* HDMI or VGA */
4498 /* Use bend source */
4499 if (!pipe)
ae99258f 4500 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
89b667f8
JB		 4501 0x0df70000);
4502 else
ae99258f 4503 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
89b667f8
JB		 4504 0x0df40000);
4505 }
a0c4da24 4506
ae99258f 4507 coreclk = vlv_dpio_read(dev_priv, DPIO_CORE_CLK(pipe));
89b667f8
JB		 4508 coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
4509 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) ||
4510 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP))
4511 coreclk |= 0x01000000;
ae99258f 4512 vlv_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), coreclk);
a0c4da24 4513
ae99258f 4514 vlv_dpio_write(dev_priv, DPIO_PLL_CML(pipe), 0x87871000);
a0c4da24 4515
89b667f8
JB		 4516 /* Enable DPIO clock input */
4517 dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
4518 DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
4519 if (pipe)
4520 dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
a0c4da24
JB		 4521
4522 dpll |= DPLL_VCO_ENABLE;
8bcc2795
DV		 4523 crtc->config.dpll_hw_state.dpll = dpll;
4524
ef1b460d
DV		 4525 dpll_md = (crtc->config.pixel_multiplier - 1)
4526 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
8bcc2795
DV		 4527 crtc->config.dpll_hw_state.dpll_md = dpll_md;
4528
89b667f8
JB		 4529 if (crtc->config.has_dp_encoder)
4530 intel_dp_set_m_n(crtc);
09153000
DV		 4531
4532 mutex_unlock(&dev_priv->dpio_lock);
a0c4da24
JB		 4533}
4534
f47709a9
DV		 4535static void i9xx_update_pll(struct intel_crtc *crtc,
4536 intel_clock_t *reduced_clock,
eb1cbe48
DV		 4537 int num_connectors)
4538{
f47709a9 4539 struct drm_device *dev = crtc->base.dev;
eb1cbe48 4540 struct drm_i915_private *dev_priv = dev->dev_private;
eb1cbe48
DV		 4541 u32 dpll;
4542 bool is_sdvo;
f47709a9 4543 struct dpll *clock = &crtc->config.dpll;
eb1cbe48 4544
f47709a9 4545 i9xx_update_pll_dividers(crtc, reduced_clock);
2a8f64ca 4546
f47709a9
DV		 4547 is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
4548 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
eb1cbe48
DV		 4549
4550 dpll = DPLL_VGA_MODE_DIS;
4551
f47709a9 4552 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS))
eb1cbe48
DV		 4553 dpll |= DPLLB_MODE_LVDS;
4554 else
4555 dpll |= DPLLB_MODE_DAC_SERIAL;
6cc5f341 4556
ef1b460d 4557 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
198a037f
DV		 4558 dpll |= (crtc->config.pixel_multiplier - 1)
4559 << SDVO_MULTIPLIER_SHIFT_HIRES;
eb1cbe48 4560 }
198a037f
DV		 4561
4562 if (is_sdvo)
4a33e48d 4563 dpll |= DPLL_SDVO_HIGH_SPEED;
198a037f 4564
f47709a9 4565 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
4a33e48d 4566 dpll |= DPLL_SDVO_HIGH_SPEED;
eb1cbe48
DV		 4567
4568 /* compute bitmask from p1 value */
4569 if (IS_PINEVIEW(dev))
4570 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
4571 else {
4572 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4573 if (IS_G4X(dev) && reduced_clock)
4574 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
4575 }
4576 switch (clock->p2) {
4577 case 5:
4578 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
4579 break;
4580 case 7:
4581 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
4582 break;
4583 case 10:
4584 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
4585 break;
4586 case 14:
4587 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
4588 break;
4589 }
4590 if (INTEL_INFO(dev)->gen >= 4)
4591 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
4592
09ede541 4593 if (crtc->config.sdvo_tv_clock)
eb1cbe48 4594 dpll |= PLL_REF_INPUT_TVCLKINBC;
f47709a9 4595 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
eb1cbe48
DV		 4596 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4597 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4598 else
4599 dpll |= PLL_REF_INPUT_DREFCLK;
4600
4601 dpll |= DPLL_VCO_ENABLE;
8bcc2795
DV		 4602 crtc->config.dpll_hw_state.dpll = dpll;
4603
eb1cbe48 4604 if (INTEL_INFO(dev)->gen >= 4) {
ef1b460d
DV		 4605 u32 dpll_md = (crtc->config.pixel_multiplier - 1)
4606 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
8bcc2795 4607 crtc->config.dpll_hw_state.dpll_md = dpll_md;
eb1cbe48 4608 }
66e3d5c0
DV		 4609
4610 if (crtc->config.has_dp_encoder)
4611 intel_dp_set_m_n(crtc);
eb1cbe48
DV		 4612}
4613
f47709a9 4614static void i8xx_update_pll(struct intel_crtc *crtc,
f47709a9 4615 intel_clock_t *reduced_clock,
eb1cbe48
DV		 4616 int num_connectors)
4617{
f47709a9 4618 struct drm_device *dev = crtc->base.dev;
eb1cbe48 4619 struct drm_i915_private *dev_priv = dev->dev_private;
eb1cbe48 4620 u32 dpll;
f47709a9 4621 struct dpll *clock = &crtc->config.dpll;
eb1cbe48 4622
f47709a9 4623 i9xx_update_pll_dividers(crtc, reduced_clock);
2a8f64ca 4624
eb1cbe48
DV		 4625 dpll = DPLL_VGA_MODE_DIS;
4626
f47709a9 4627 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
eb1cbe48
DV		 4628 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4629 } else {
4630 if (clock->p1 == 2)
4631 dpll |= PLL_P1_DIVIDE_BY_TWO;
4632 else
4633 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4634 if (clock->p2 == 4)
4635 dpll |= PLL_P2_DIVIDE_BY_4;
4636 }
4637
4a33e48d
DV		 4638 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DVO))
4639 dpll |= DPLL_DVO_2X_MODE;
4640
f47709a9 4641 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
eb1cbe48
DV		 4642 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4643 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4644 else
4645 dpll |= PLL_REF_INPUT_DREFCLK;
4646
4647 dpll |= DPLL_VCO_ENABLE;
8bcc2795 4648 crtc->config.dpll_hw_state.dpll = dpll;
eb1cbe48
DV		 4649}
4650
8a654f3b 4651static void intel_set_pipe_timings(struct intel_crtc *intel_crtc)
b0e77b9c
PZ		 4652{
4653 struct drm_device *dev = intel_crtc->base.dev;
4654 struct drm_i915_private *dev_priv = dev->dev_private;
4655 enum pipe pipe = intel_crtc->pipe;
3b117c8f 4656 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
8a654f3b
DV		 4657 struct drm_display_mode *adjusted_mode =
4658 &intel_crtc->config.adjusted_mode;
4659 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
4d8a62ea
DV		 4660 uint32_t vsyncshift, crtc_vtotal, crtc_vblank_end;
4661
4662 /* We need to be careful not to changed the adjusted mode, for otherwise
4663 * the hw state checker will get angry at the mismatch. */
4664 crtc_vtotal = adjusted_mode->crtc_vtotal;
4665 crtc_vblank_end = adjusted_mode->crtc_vblank_end;
b0e77b9c
PZ		 4666
4667 if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
4668 /* the chip adds 2 halflines automatically */
4d8a62ea
DV		 4669 crtc_vtotal -= 1;
4670 crtc_vblank_end -= 1;
b0e77b9c
PZ		 4671 vsyncshift = adjusted_mode->crtc_hsync_start
4672 - adjusted_mode->crtc_htotal / 2;
4673 } else {
4674 vsyncshift = 0;
4675 }
4676
4677 if (INTEL_INFO(dev)->gen > 3)
fe2b8f9d 4678 I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
b0e77b9c 4679
fe2b8f9d 4680 I915_WRITE(HTOTAL(cpu_transcoder),
b0e77b9c
PZ		 4681 (adjusted_mode->crtc_hdisplay - 1) |
4682 ((adjusted_mode->crtc_htotal - 1) << 16));
fe2b8f9d 4683 I915_WRITE(HBLANK(cpu_transcoder),
b0e77b9c
PZ		 4684 (adjusted_mode->crtc_hblank_start - 1) |
4685 ((adjusted_mode->crtc_hblank_end - 1) << 16));
fe2b8f9d 4686 I915_WRITE(HSYNC(cpu_transcoder),
b0e77b9c
PZ		 4687 (adjusted_mode->crtc_hsync_start - 1) |
4688 ((adjusted_mode->crtc_hsync_end - 1) << 16));
4689
fe2b8f9d 4690 I915_WRITE(VTOTAL(cpu_transcoder),
b0e77b9c 4691 (adjusted_mode->crtc_vdisplay - 1) |
4d8a62ea 4692 ((crtc_vtotal - 1) << 16));
fe2b8f9d 4693 I915_WRITE(VBLANK(cpu_transcoder),
b0e77b9c 4694 (adjusted_mode->crtc_vblank_start - 1) |
4d8a62ea 4695 ((crtc_vblank_end - 1) << 16));
fe2b8f9d 4696 I915_WRITE(VSYNC(cpu_transcoder),
b0e77b9c
PZ		 4697 (adjusted_mode->crtc_vsync_start - 1) |
4698 ((adjusted_mode->crtc_vsync_end - 1) << 16));
4699
b5e508d4
PZ		 4700 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
4701 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
4702 * documented on the DDI_FUNC_CTL register description, EDP Input Select
4703 * bits. */
4704 if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP &&
4705 (pipe == PIPE_B || pipe == PIPE_C))
4706 I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
4707
b0e77b9c
PZ		 4708 /* pipesrc controls the size that is scaled from, which should
4709 * always be the user's requested size.
4710 */
4711 I915_WRITE(PIPESRC(pipe),
4712 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
4713}
4714
1bd1bd80
DV		 4715static void intel_get_pipe_timings(struct intel_crtc *crtc,
4716 struct intel_crtc_config *pipe_config)
4717{
4718 struct drm_device *dev = crtc->base.dev;
4719 struct drm_i915_private *dev_priv = dev->dev_private;
4720 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
4721 uint32_t tmp;
4722
4723 tmp = I915_READ(HTOTAL(cpu_transcoder));
4724 pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1;
4725 pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1;
4726 tmp = I915_READ(HBLANK(cpu_transcoder));
4727 pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1;
4728 pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1;
4729 tmp = I915_READ(HSYNC(cpu_transcoder));
4730 pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1;
4731 pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1;
4732
4733 tmp = I915_READ(VTOTAL(cpu_transcoder));
4734 pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1;
4735 pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1;
4736 tmp = I915_READ(VBLANK(cpu_transcoder));
4737 pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1;
4738 pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1;
4739 tmp = I915_READ(VSYNC(cpu_transcoder));
4740 pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1;
4741 pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1;
4742
4743 if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) {
4744 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE;
4745 pipe_config->adjusted_mode.crtc_vtotal += 1;
4746 pipe_config->adjusted_mode.crtc_vblank_end += 1;
4747 }
4748
4749 tmp = I915_READ(PIPESRC(crtc->pipe));
4750 pipe_config->requested_mode.vdisplay = (tmp & 0xffff) + 1;
4751 pipe_config->requested_mode.hdisplay = ((tmp >> 16) & 0xffff) + 1;
4752}
4753
babea61d
JB		 4754static void intel_crtc_mode_from_pipe_config(struct intel_crtc *intel_crtc,
4755 struct intel_crtc_config *pipe_config)
4756{
4757 struct drm_crtc *crtc = &intel_crtc->base;
4758
4759 crtc->mode.hdisplay = pipe_config->adjusted_mode.crtc_hdisplay;
4760 crtc->mode.htotal = pipe_config->adjusted_mode.crtc_htotal;
4761 crtc->mode.hsync_start = pipe_config->adjusted_mode.crtc_hsync_start;
4762 crtc->mode.hsync_end = pipe_config->adjusted_mode.crtc_hsync_end;
4763
4764 crtc->mode.vdisplay = pipe_config->adjusted_mode.crtc_vdisplay;
4765 crtc->mode.vtotal = pipe_config->adjusted_mode.crtc_vtotal;
4766 crtc->mode.vsync_start = pipe_config->adjusted_mode.crtc_vsync_start;
4767 crtc->mode.vsync_end = pipe_config->adjusted_mode.crtc_vsync_end;
4768
4769 crtc->mode.flags = pipe_config->adjusted_mode.flags;
4770
4771 crtc->mode.clock = pipe_config->adjusted_mode.clock;
4772 crtc->mode.flags |= pipe_config->adjusted_mode.flags;
4773}
4774
84b046f3
DV		 4775static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
4776{
4777 struct drm_device *dev = intel_crtc->base.dev;
4778 struct drm_i915_private *dev_priv = dev->dev_private;
4779 uint32_t pipeconf;
4780
9f11a9e4 4781 pipeconf = 0;
84b046f3
DV		 4782
4783 if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) {
4784 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4785 * core speed.
4786 *
4787 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4788 * pipe == 0 check?
4789 */
4790 if (intel_crtc->config.requested_mode.clock >
4791 dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
4792 pipeconf |= PIPECONF_DOUBLE_WIDE;
84b046f3
DV		 4793 }
4794
ff9ce46e
DV		 4795 /* only g4x and later have fancy bpc/dither controls */
4796 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
ff9ce46e
DV		 4797 /* Bspec claims that we can't use dithering for 30bpp pipes. */
4798 if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30)
4799 pipeconf |= PIPECONF_DITHER_EN |
84b046f3 4800 PIPECONF_DITHER_TYPE_SP;
84b046f3 4801
ff9ce46e
DV		 4802 switch (intel_crtc->config.pipe_bpp) {
4803 case 18:
4804 pipeconf |= PIPECONF_6BPC;
4805 break;
4806 case 24:
4807 pipeconf |= PIPECONF_8BPC;
4808 break;
4809 case 30:
4810 pipeconf |= PIPECONF_10BPC;
4811 break;
4812 default:
4813 /* Case prevented by intel_choose_pipe_bpp_dither. */
4814 BUG();
84b046f3
DV		 4815 }
4816 }
4817
4818 if (HAS_PIPE_CXSR(dev)) {
4819 if (intel_crtc->lowfreq_avail) {
4820 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4821 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
4822 } else {
4823 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
84b046f3
DV		 4824 }
4825 }
4826
84b046f3
DV		 4827 if (!IS_GEN2(dev) &&
4828 intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
4829 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
4830 else
4831 pipeconf |= PIPECONF_PROGRESSIVE;
4832
9f11a9e4
DV		 4833 if (IS_VALLEYVIEW(dev) && intel_crtc->config.limited_color_range)
4834 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
9c8e09b7 4835
84b046f3
DV		 4836 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
4837 POSTING_READ(PIPECONF(intel_crtc->pipe));
4838}
4839
f564048e 4840static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
f564048e 4841 int x, int y,
94352cf9 4842 struct drm_framebuffer *fb)
79e53945
JB		 4843{
4844 struct drm_device *dev = crtc->dev;
4845 struct drm_i915_private *dev_priv = dev->dev_private;
4846 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
b8cecdf5 4847 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
79e53945 4848 int pipe = intel_crtc->pipe;
80824003 4849 int plane = intel_crtc->plane;
c751ce4f 4850 int refclk, num_connectors = 0;
652c393a 4851 intel_clock_t clock, reduced_clock;
84b046f3 4852 u32 dspcntr;
a16af721 4853 bool ok, has_reduced_clock = false;
e9fd1c02 4854 bool is_lvds = false, is_dsi = false;
5eddb70b 4855 struct intel_encoder *encoder;
d4906093 4856 const intel_limit_t *limit;
5c3b82e2 4857 int ret;
79e53945 4858
6c2b7c12 4859 for_each_encoder_on_crtc(dev, crtc, encoder) {
5eddb70b 4860 switch (encoder->type) {
79e53945
JB		 4861 case INTEL_OUTPUT_LVDS:
4862 is_lvds = true;
4863 break;
e9fd1c02
JN		 4864 case INTEL_OUTPUT_DSI:
4865 is_dsi = true;
4866 break;
79e53945 4867 }
43565a06 4868
c751ce4f 4869 num_connectors++;
79e53945
JB		 4870 }
4871
c65d77d8 4872 refclk = i9xx_get_refclk(crtc, num_connectors);
79e53945 4873
65ce4bf5 4874 if (!is_dsi && !intel_crtc->config.clock_set) {
e9fd1c02
JN		 4875 /*
4876 * Returns a set of divisors for the desired target clock with
4877 * the given refclk, or FALSE. The returned values represent
4878 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
4879 * 2) / p1 / p2.
4880 */
4881 limit = intel_limit(crtc, refclk);
4882 ok = dev_priv->display.find_dpll(limit, crtc,
4883 intel_crtc->config.port_clock,
4884 refclk, NULL, &clock);
4885 if (!ok && !intel_crtc->config.clock_set) {
4886 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4887 return -EINVAL;
4888 }
79e53945
JB		 4889 }
4890
cda4b7d3 4891 /* Ensure that the cursor is valid for the new mode before changing... */
6b383a7f 4892 intel_crtc_update_cursor(crtc, true);
cda4b7d3 4893
e9fd1c02 4894 if (!is_dsi && is_lvds && dev_priv->lvds_downclock_avail) {
cec2f356
SP		 4895 /*
4896 * Ensure we match the reduced clock's P to the target clock.
4897 * If the clocks don't match, we can't switch the display clock
4898 * by using the FP0/FP1. In such case we will disable the LVDS
4899 * downclock feature.
4900 */
65ce4bf5 4901 limit = intel_limit(crtc, refclk);
ee9300bb
DV		 4902 has_reduced_clock =
4903 dev_priv->display.find_dpll(limit, crtc,
5eddb70b 4904 dev_priv->lvds_downclock,
ee9300bb 4905 refclk, &clock,
5eddb70b 4906 &reduced_clock);
7026d4ac 4907 }
f47709a9
DV		 4908 /* Compat-code for transition, will disappear. */
4909 if (!intel_crtc->config.clock_set) {
4910 intel_crtc->config.dpll.n = clock.n;
4911 intel_crtc->config.dpll.m1 = clock.m1;
4912 intel_crtc->config.dpll.m2 = clock.m2;
4913 intel_crtc->config.dpll.p1 = clock.p1;
4914 intel_crtc->config.dpll.p2 = clock.p2;
4915 }
7026d4ac 4916
e9fd1c02 4917 if (IS_GEN2(dev)) {
8a654f3b 4918 i8xx_update_pll(intel_crtc,
2a8f64ca
VP		 4919 has_reduced_clock ? &reduced_clock : NULL,
4920 num_connectors);
e9fd1c02
JN		 4921 } else if (IS_VALLEYVIEW(dev)) {
4922 if (!is_dsi)
4923 vlv_update_pll(intel_crtc);
4924 } else {
f47709a9 4925 i9xx_update_pll(intel_crtc,
eb1cbe48 4926 has_reduced_clock ? &reduced_clock : NULL,
89b667f8 4927 num_connectors);
e9fd1c02 4928 }
79e53945 4929
79e53945
JB		 4930 /* Set up the display plane register */
4931 dspcntr = DISPPLANE_GAMMA_ENABLE;
4932
da6ecc5d
JB		 4933 if (!IS_VALLEYVIEW(dev)) {
4934 if (pipe == 0)
4935 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
4936 else
4937 dspcntr |= DISPPLANE_SEL_PIPE_B;
4938 }
79e53945 4939
8a654f3b 4940 intel_set_pipe_timings(intel_crtc);
5eddb70b
CW		 4941
4942 /* pipesrc and dspsize control the size that is scaled from,
4943 * which should always be the user's requested size.
79e53945 4944 */
929c77fb
EA		 4945 I915_WRITE(DSPSIZE(plane),
4946 ((mode->vdisplay - 1) << 16) |
4947 (mode->hdisplay - 1));
4948 I915_WRITE(DSPPOS(plane), 0);
2c07245f 4949
84b046f3
DV		 4950 i9xx_set_pipeconf(intel_crtc);
4951
f564048e
EA		 4952 I915_WRITE(DSPCNTR(plane), dspcntr);
4953 POSTING_READ(DSPCNTR(plane));
4954
94352cf9 4955 ret = intel_pipe_set_base(crtc, x, y, fb);
f564048e
EA		 4956
4957 intel_update_watermarks(dev);
4958
f564048e
EA		 4959 return ret;
4960}
4961
2fa2fe9a
DV		 4962static void i9xx_get_pfit_config(struct intel_crtc *crtc,
4963 struct intel_crtc_config *pipe_config)
4964{
4965 struct drm_device *dev = crtc->base.dev;
4966 struct drm_i915_private *dev_priv = dev->dev_private;
4967 uint32_t tmp;
4968
4969 tmp = I915_READ(PFIT_CONTROL);
06922821
DV		 4970 if (!(tmp & PFIT_ENABLE))
4971 return;
2fa2fe9a 4972
06922821 4973 /* Check whether the pfit is attached to our pipe. */
2fa2fe9a
DV		 4974 if (INTEL_INFO(dev)->gen < 4) {
4975 if (crtc->pipe != PIPE_B)
4976 return;
2fa2fe9a
DV		 4977 } else {
4978 if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT))
4979 return;
4980 }
4981
06922821 4982 pipe_config->gmch_pfit.control = tmp;
2fa2fe9a
DV		 4983 pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS);
4984 if (INTEL_INFO(dev)->gen < 5)
4985 pipe_config->gmch_pfit.lvds_border_bits =
4986 I915_READ(LVDS) & LVDS_BORDER_ENABLE;
4987}
4988
0e8ffe1b
DV		 4989static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
4990 struct intel_crtc_config *pipe_config)
4991{
4992 struct drm_device *dev = crtc->base.dev;
4993 struct drm_i915_private *dev_priv = dev->dev_private;
4994 uint32_t tmp;
4995
e143a21c 4996 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
c0d43d62 4997 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
eccb140b 4998
0e8ffe1b
DV		 4999 tmp = I915_READ(PIPECONF(crtc->pipe));
5000 if (!(tmp & PIPECONF_ENABLE))
5001 return false;
5002
1bd1bd80
DV		 5003 intel_get_pipe_timings(crtc, pipe_config);
5004
2fa2fe9a
DV		 5005 i9xx_get_pfit_config(crtc, pipe_config);
5006
6c49f241
DV		 5007 if (INTEL_INFO(dev)->gen >= 4) {
5008 tmp = I915_READ(DPLL_MD(crtc->pipe));
5009 pipe_config->pixel_multiplier =
5010 ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK)
5011 >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1;
8bcc2795 5012 pipe_config->dpll_hw_state.dpll_md = tmp;
6c49f241
DV		 5013 } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
5014 tmp = I915_READ(DPLL(crtc->pipe));
5015 pipe_config->pixel_multiplier =
5016 ((tmp & SDVO_MULTIPLIER_MASK)
5017 >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1;
5018 } else {
5019 /* Note that on i915G/GM the pixel multiplier is in the sdvo
5020 * port and will be fixed up in the encoder->get_config
5021 * function. */
5022 pipe_config->pixel_multiplier = 1;
5023 }
8bcc2795
DV		 5024 pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe));
5025 if (!IS_VALLEYVIEW(dev)) {
5026 pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe));
5027 pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe));
165e901c
VS		 5028 } else {
5029 /* Mask out read-only status bits. */
5030 pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV |
5031 DPLL_PORTC_READY_MASK |
5032 DPLL_PORTB_READY_MASK);
8bcc2795 5033 }
6c49f241 5034
0e8ffe1b
DV		 5035 return true;
5036}
5037
dde86e2d 5038static void ironlake_init_pch_refclk(struct drm_device *dev)
13d83a67
JB		 5039{
5040 struct drm_i915_private *dev_priv = dev->dev_private;
5041 struct drm_mode_config *mode_config = &dev->mode_config;
13d83a67 5042 struct intel_encoder *encoder;
74cfd7ac 5043 u32 val, final;
13d83a67 5044 bool has_lvds = false;
199e5d79 5045 bool has_cpu_edp = false;
199e5d79 5046 bool has_panel = false;
99eb6a01
KP		 5047 bool has_ck505 = false;
5048 bool can_ssc = false;
13d83a67
JB		 5049
5050 /* We need to take the global config into account */
199e5d79
KP		 5051 list_for_each_entry(encoder, &mode_config->encoder_list,
5052 base.head) {
5053 switch (encoder->type) {
5054 case INTEL_OUTPUT_LVDS:
5055 has_panel = true;
5056 has_lvds = true;
5057 break;
5058 case INTEL_OUTPUT_EDP:
5059 has_panel = true;
2de6905f 5060 if (enc_to_dig_port(&encoder->base)->port == PORT_A)
199e5d79
KP		 5061 has_cpu_edp = true;
5062 break;
13d83a67
JB		 5063 }
5064 }
5065
99eb6a01 5066 if (HAS_PCH_IBX(dev)) {
41aa3448 5067 has_ck505 = dev_priv->vbt.display_clock_mode;
99eb6a01
KP		 5068 can_ssc = has_ck505;
5069 } else {
5070 has_ck505 = false;
5071 can_ssc = true;
5072 }
5073
2de6905f
ID		 5074 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
5075 has_panel, has_lvds, has_ck505);
13d83a67
JB		 5076
5077 /* Ironlake: try to setup display ref clock before DPLL
5078 * enabling. This is only under driver's control after
5079 * PCH B stepping, previous chipset stepping should be
5080 * ignoring this setting.
5081 */
74cfd7ac
CW		 5082 val = I915_READ(PCH_DREF_CONTROL);
5083
5084 /* As we must carefully and slowly disable/enable each source in turn,
5085 * compute the final state we want first and check if we need to
5086 * make any changes at all.
5087 */
5088 final = val;
5089 final &= ~DREF_NONSPREAD_SOURCE_MASK;
5090 if (has_ck505)
5091 final |= DREF_NONSPREAD_CK505_ENABLE;
5092 else
5093 final |= DREF_NONSPREAD_SOURCE_ENABLE;
5094
5095 final &= ~DREF_SSC_SOURCE_MASK;
5096 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5097 final &= ~DREF_SSC1_ENABLE;
5098
5099 if (has_panel) {
5100 final |= DREF_SSC_SOURCE_ENABLE;
5101
5102 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5103 final |= DREF_SSC1_ENABLE;
5104
5105 if (has_cpu_edp) {
5106 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5107 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5108 else
5109 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5110 } else
5111 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5112 } else {
5113 final |= DREF_SSC_SOURCE_DISABLE;
5114 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5115 }
5116
5117 if (final == val)
5118 return;
5119
13d83a67 5120 /* Always enable nonspread source */
74cfd7ac 5121 val &= ~DREF_NONSPREAD_SOURCE_MASK;
13d83a67 5122
99eb6a01 5123 if (has_ck505)
74cfd7ac 5124 val |= DREF_NONSPREAD_CK505_ENABLE;
99eb6a01 5125 else
74cfd7ac 5126 val |= DREF_NONSPREAD_SOURCE_ENABLE;
13d83a67 5127
199e5d79 5128 if (has_panel) {
74cfd7ac
CW		 5129 val &= ~DREF_SSC_SOURCE_MASK;
5130 val |= DREF_SSC_SOURCE_ENABLE;
13d83a67 5131
199e5d79 5132 /* SSC must be turned on before enabling the CPU output */
99eb6a01 5133 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
199e5d79 5134 DRM_DEBUG_KMS("Using SSC on panel\n");
74cfd7ac 5135 val |= DREF_SSC1_ENABLE;
e77166b5 5136 } else
74cfd7ac 5137 val &= ~DREF_SSC1_ENABLE;
199e5d79
KP		 5138
5139 /* Get SSC going before enabling the outputs */
74cfd7ac 5140 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5141 POSTING_READ(PCH_DREF_CONTROL);
5142 udelay(200);
5143
74cfd7ac 5144 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
13d83a67
JB		 5145
5146 /* Enable CPU source on CPU attached eDP */
199e5d79 5147 if (has_cpu_edp) {
99eb6a01 5148 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
199e5d79 5149 DRM_DEBUG_KMS("Using SSC on eDP\n");
74cfd7ac 5150 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
199e5d79 5151 }
13d83a67 5152 else
74cfd7ac 5153 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
199e5d79 5154 } else
74cfd7ac 5155 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
199e5d79 5156
74cfd7ac 5157 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5158 POSTING_READ(PCH_DREF_CONTROL);
5159 udelay(200);
5160 } else {
5161 DRM_DEBUG_KMS("Disabling SSC entirely\n");
5162
74cfd7ac 5163 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
199e5d79
KP		 5164
5165 /* Turn off CPU output */
74cfd7ac 5166 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
199e5d79 5167
74cfd7ac 5168 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5169 POSTING_READ(PCH_DREF_CONTROL);
5170 udelay(200);
5171
5172 /* Turn off the SSC source */
74cfd7ac
CW		 5173 val &= ~DREF_SSC_SOURCE_MASK;
5174 val |= DREF_SSC_SOURCE_DISABLE;
199e5d79
KP		 5175
5176 /* Turn off SSC1 */
74cfd7ac 5177 val &= ~DREF_SSC1_ENABLE;
199e5d79 5178
74cfd7ac 5179 I915_WRITE(PCH_DREF_CONTROL, val);
13d83a67
JB		 5180 POSTING_READ(PCH_DREF_CONTROL);
5181 udelay(200);
5182 }
74cfd7ac
CW		 5183
5184 BUG_ON(val != final);
13d83a67
JB		 5185}
5186
f31f2d55 5187static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv)
dde86e2d 5188{
f31f2d55 5189 uint32_t tmp;
dde86e2d 5190
0ff066a9
PZ		 5191 tmp = I915_READ(SOUTH_CHICKEN2);
5192 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
5193 I915_WRITE(SOUTH_CHICKEN2, tmp);
dde86e2d 5194
0ff066a9
PZ		 5195 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
5196 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
5197 DRM_ERROR("FDI mPHY reset assert timeout\n");
dde86e2d 5198
0ff066a9
PZ		 5199 tmp = I915_READ(SOUTH_CHICKEN2);
5200 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
5201 I915_WRITE(SOUTH_CHICKEN2, tmp);
dde86e2d 5202
0ff066a9
PZ		 5203 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
5204 FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100))
5205 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
f31f2d55
PZ		 5206}
5207
5208/* WaMPhyProgramming:hsw */
5209static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv)
5210{
5211 uint32_t tmp;
dde86e2d
PZ		 5212
5213 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
5214 tmp &= ~(0xFF << 24);
5215 tmp |= (0x12 << 24);
5216 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
5217
dde86e2d
PZ		 5218 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
5219 tmp |= (1 << 11);
5220 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
5221
5222 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
5223 tmp |= (1 << 11);
5224 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
5225
dde86e2d
PZ		 5226 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
5227 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5228 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
5229
5230 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
5231 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5232 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
5233
0ff066a9
PZ		 5234 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
5235 tmp &= ~(7 << 13);
5236 tmp |= (5 << 13);
5237 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
dde86e2d 5238
0ff066a9
PZ		 5239 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
5240 tmp &= ~(7 << 13);
5241 tmp |= (5 << 13);
5242 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
dde86e2d
PZ		 5243
5244 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
5245 tmp &= ~0xFF;
5246 tmp |= 0x1C;
5247 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
5248
5249 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
5250 tmp &= ~0xFF;
5251 tmp |= 0x1C;
5252 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
5253
5254 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
5255 tmp &= ~(0xFF << 16);
5256 tmp |= (0x1C << 16);
5257 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
5258
5259 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
5260 tmp &= ~(0xFF << 16);
5261 tmp |= (0x1C << 16);
5262 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
5263
0ff066a9
PZ		 5264 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
5265 tmp |= (1 << 27);
5266 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
dde86e2d 5267
0ff066a9
PZ		 5268 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
5269 tmp |= (1 << 27);
5270 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
dde86e2d 5271
0ff066a9
PZ		 5272 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
5273 tmp &= ~(0xF << 28);
5274 tmp |= (4 << 28);
5275 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
dde86e2d 5276
0ff066a9
PZ		 5277 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
5278 tmp &= ~(0xF << 28);
5279 tmp |= (4 << 28);
5280 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
f31f2d55
PZ		 5281}
5282
2fa86a1f
PZ		 5283/* Implements 3 different sequences from BSpec chapter "Display iCLK
5284 * Programming" based on the parameters passed:
5285 * - Sequence to enable CLKOUT_DP
5286 * - Sequence to enable CLKOUT_DP without spread
5287 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
5288 */
5289static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread,
5290 bool with_fdi)
f31f2d55
PZ		 5291{
5292 struct drm_i915_private *dev_priv = dev->dev_private;
2fa86a1f
PZ		 5293 uint32_t reg, tmp;
5294
5295 if (WARN(with_fdi && !with_spread, "FDI requires downspread\n"))
5296 with_spread = true;
5297 if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE &&
5298 with_fdi, "LP PCH doesn't have FDI\n"))
5299 with_fdi = false;
f31f2d55
PZ		 5300
5301 mutex_lock(&dev_priv->dpio_lock);
5302
5303 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5304 tmp &= ~SBI_SSCCTL_DISABLE;
5305 tmp |= SBI_SSCCTL_PATHALT;
5306 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5307
5308 udelay(24);
5309
2fa86a1f
PZ		 5310 if (with_spread) {
5311 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5312 tmp &= ~SBI_SSCCTL_PATHALT;
5313 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
f31f2d55 5314
2fa86a1f
PZ		 5315 if (with_fdi) {
5316 lpt_reset_fdi_mphy(dev_priv);
5317 lpt_program_fdi_mphy(dev_priv);
5318 }
5319 }
dde86e2d 5320
2fa86a1f
PZ		 5321 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
5322 SBI_GEN0 : SBI_DBUFF0;
5323 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
5324 tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE;
5325 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
c00db246
DV		 5326
5327 mutex_unlock(&dev_priv->dpio_lock);
dde86e2d
PZ		 5328}
5329
47701c3b
PZ		 5330/* Sequence to disable CLKOUT_DP */
5331static void lpt_disable_clkout_dp(struct drm_device *dev)
5332{
5333 struct drm_i915_private *dev_priv = dev->dev_private;
5334 uint32_t reg, tmp;
5335
5336 mutex_lock(&dev_priv->dpio_lock);
5337
5338 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
5339 SBI_GEN0 : SBI_DBUFF0;
5340 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
5341 tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE;
5342 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
5343
5344 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5345 if (!(tmp & SBI_SSCCTL_DISABLE)) {
5346 if (!(tmp & SBI_SSCCTL_PATHALT)) {
5347 tmp |= SBI_SSCCTL_PATHALT;
5348 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5349 udelay(32);
5350 }
5351 tmp |= SBI_SSCCTL_DISABLE;
5352 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5353 }
5354
5355 mutex_unlock(&dev_priv->dpio_lock);
5356}
5357
bf8fa3d3
PZ		 5358static void lpt_init_pch_refclk(struct drm_device *dev)
5359{
5360 struct drm_mode_config *mode_config = &dev->mode_config;
5361 struct intel_encoder *encoder;
5362 bool has_vga = false;
5363
5364 list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
5365 switch (encoder->type) {
5366 case INTEL_OUTPUT_ANALOG:
5367 has_vga = true;
5368 break;
5369 }
5370 }
5371
47701c3b
PZ		 5372 if (has_vga)
5373 lpt_enable_clkout_dp(dev, true, true);
5374 else
5375 lpt_disable_clkout_dp(dev);
bf8fa3d3
PZ		 5376}
5377
dde86e2d
PZ		 5378/*
5379 * Initialize reference clocks when the driver loads
5380 */
5381void intel_init_pch_refclk(struct drm_device *dev)
5382{
5383 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
5384 ironlake_init_pch_refclk(dev);
5385 else if (HAS_PCH_LPT(dev))
5386 lpt_init_pch_refclk(dev);
5387}
5388
d9d444cb
JB		 5389static int ironlake_get_refclk(struct drm_crtc *crtc)
5390{
5391 struct drm_device *dev = crtc->dev;
5392 struct drm_i915_private *dev_priv = dev->dev_private;
5393 struct intel_encoder *encoder;
d9d444cb
JB		 5394 int num_connectors = 0;
5395 bool is_lvds = false;
5396
6c2b7c12 5397 for_each_encoder_on_crtc(dev, crtc, encoder) {
d9d444cb
JB		 5398 switch (encoder->type) {
5399 case INTEL_OUTPUT_LVDS:
5400 is_lvds = true;
5401 break;
d9d444cb
JB		 5402 }
5403 num_connectors++;
5404 }
5405
5406 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
5407 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
41aa3448
RV		 5408 dev_priv->vbt.lvds_ssc_freq);
5409 return dev_priv->vbt.lvds_ssc_freq * 1000;
d9d444cb
JB		 5410 }
5411
5412 return 120000;
5413}
5414
6ff93609 5415static void ironlake_set_pipeconf(struct drm_crtc *crtc)
79e53945 5416{
c8203565 5417 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
79e53945
JB		 5418 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5419 int pipe = intel_crtc->pipe;
c8203565
PZ		 5420 uint32_t val;
5421
78114071 5422 val = 0;
c8203565 5423
965e0c48 5424 switch (intel_crtc->config.pipe_bpp) {
c8203565 5425 case 18:
dfd07d72 5426 val |= PIPECONF_6BPC;
c8203565
PZ		 5427 break;
5428 case 24:
dfd07d72 5429 val |= PIPECONF_8BPC;
c8203565
PZ		 5430 break;
5431 case 30:
dfd07d72 5432 val |= PIPECONF_10BPC;
c8203565
PZ		 5433 break;
5434 case 36:
dfd07d72 5435 val |= PIPECONF_12BPC;
c8203565
PZ		 5436 break;
5437 default:
cc769b62
PZ		 5438 /* Case prevented by intel_choose_pipe_bpp_dither. */
5439 BUG();
c8203565
PZ		 5440 }
5441
d8b32247 5442 if (intel_crtc->config.dither)
c8203565
PZ		 5443 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5444
6ff93609 5445 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
c8203565
PZ		 5446 val |= PIPECONF_INTERLACED_ILK;
5447 else
5448 val |= PIPECONF_PROGRESSIVE;
5449
50f3b016 5450 if (intel_crtc->config.limited_color_range)
3685a8f3 5451 val |= PIPECONF_COLOR_RANGE_SELECT;
3685a8f3 5452
c8203565
PZ		 5453 I915_WRITE(PIPECONF(pipe), val);
5454 POSTING_READ(PIPECONF(pipe));
5455}
5456
86d3efce
VS		 5457/*
5458 * Set up the pipe CSC unit.
5459 *
5460 * Currently only full range RGB to limited range RGB conversion
5461 * is supported, but eventually this should handle various
5462 * RGB<->YCbCr scenarios as well.
5463 */
50f3b016 5464static void intel_set_pipe_csc(struct drm_crtc *crtc)
86d3efce
VS		 5465{
5466 struct drm_device *dev = crtc->dev;
5467 struct drm_i915_private *dev_priv = dev->dev_private;
5468 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5469 int pipe = intel_crtc->pipe;
5470 uint16_t coeff = 0x7800; /* 1.0 */
5471
5472 /*
5473 * TODO: Check what kind of values actually come out of the pipe
5474 * with these coeff/postoff values and adjust to get the best
5475 * accuracy. Perhaps we even need to take the bpc value into
5476 * consideration.
5477 */
5478
50f3b016 5479 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5480 coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5481
5482 /*
5483 * GY/GU and RY/RU should be the other way around according
5484 * to BSpec, but reality doesn't agree. Just set them up in
5485 * a way that results in the correct picture.
5486 */
5487 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
5488 I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
5489
5490 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
5491 I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
5492
5493 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
5494 I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
5495
5496 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
5497 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
5498 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
5499
5500 if (INTEL_INFO(dev)->gen > 6) {
5501 uint16_t postoff = 0;
5502
50f3b016 5503 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5504 postoff = (16 * (1 << 13) / 255) & 0x1fff;
5505
5506 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
5507 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
5508 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
5509
5510 I915_WRITE(PIPE_CSC_MODE(pipe), 0);
5511 } else {
5512 uint32_t mode = CSC_MODE_YUV_TO_RGB;
5513
50f3b016 5514 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5515 mode |= CSC_BLACK_SCREEN_OFFSET;
5516
5517 I915_WRITE(PIPE_CSC_MODE(pipe), mode);
5518 }
5519}
5520
6ff93609 5521static void haswell_set_pipeconf(struct drm_crtc *crtc)
ee2b0b38
PZ		 5522{
5523 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5524 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 5525 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
ee2b0b38
PZ		 5526 uint32_t val;
5527
3eff4faa 5528 val = 0;
ee2b0b38 5529
d8b32247 5530 if (intel_crtc->config.dither)
ee2b0b38
PZ		 5531 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5532
6ff93609 5533 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
ee2b0b38
PZ		 5534 val |= PIPECONF_INTERLACED_ILK;
5535 else
5536 val |= PIPECONF_PROGRESSIVE;
5537
702e7a56
PZ		 5538 I915_WRITE(PIPECONF(cpu_transcoder), val);
5539 POSTING_READ(PIPECONF(cpu_transcoder));
3eff4faa
DV		 5540
5541 I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT);
5542 POSTING_READ(GAMMA_MODE(intel_crtc->pipe));
ee2b0b38
PZ		 5543}
5544
6591c6e4 5545static bool ironlake_compute_clocks(struct drm_crtc *crtc,
6591c6e4
PZ		 5546 intel_clock_t *clock,
5547 bool *has_reduced_clock,
5548 intel_clock_t *reduced_clock)
5549{
5550 struct drm_device *dev = crtc->dev;
5551 struct drm_i915_private *dev_priv = dev->dev_private;
5552 struct intel_encoder *intel_encoder;
5553 int refclk;
d4906093 5554 const intel_limit_t *limit;
a16af721 5555 bool ret, is_lvds = false;
79e53945 5556
6591c6e4
PZ		 5557 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5558 switch (intel_encoder->type) {
79e53945
JB		 5559 case INTEL_OUTPUT_LVDS:
5560 is_lvds = true;
5561 break;
79e53945
JB		 5562 }
5563 }
5564
d9d444cb 5565 refclk = ironlake_get_refclk(crtc);
79e53945 5566
d4906093
ML		 5567 /*
5568 * Returns a set of divisors for the desired target clock with the given
5569 * refclk, or FALSE. The returned values represent the clock equation:
5570 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
5571 */
1b894b59 5572 limit = intel_limit(crtc, refclk);
ff9a6750
DV		 5573 ret = dev_priv->display.find_dpll(limit, crtc,
5574 to_intel_crtc(crtc)->config.port_clock,
ee9300bb 5575 refclk, NULL, clock);
6591c6e4
PZ		 5576 if (!ret)
5577 return false;
cda4b7d3 5578
ddc9003c 5579 if (is_lvds && dev_priv->lvds_downclock_avail) {
cec2f356
SP		 5580 /*
5581 * Ensure we match the reduced clock's P to the target clock.
5582 * If the clocks don't match, we can't switch the display clock
5583 * by using the FP0/FP1. In such case we will disable the LVDS
5584 * downclock feature.
5585 */
ee9300bb
DV		 5586 *has_reduced_clock =
5587 dev_priv->display.find_dpll(limit, crtc,
5588 dev_priv->lvds_downclock,
5589 refclk, clock,
5590 reduced_clock);
652c393a 5591 }
61e9653f 5592
6591c6e4
PZ		 5593 return true;
5594}
5595
01a415fd
DV		 5596static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
5597{
5598 struct drm_i915_private *dev_priv = dev->dev_private;
5599 uint32_t temp;
5600
5601 temp = I915_READ(SOUTH_CHICKEN1);
5602 if (temp & FDI_BC_BIFURCATION_SELECT)
5603 return;
5604
5605 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
5606 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
5607
5608 temp |= FDI_BC_BIFURCATION_SELECT;
5609 DRM_DEBUG_KMS("enabling fdi C rx\n");
5610 I915_WRITE(SOUTH_CHICKEN1, temp);
5611 POSTING_READ(SOUTH_CHICKEN1);
5612}
5613
ebfd86fd 5614static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
01a415fd
DV		 5615{
5616 struct drm_device *dev = intel_crtc->base.dev;
5617 struct drm_i915_private *dev_priv = dev->dev_private;
01a415fd
DV		 5618
5619 switch (intel_crtc->pipe) {
5620 case PIPE_A:
ebfd86fd 5621 break;
01a415fd 5622 case PIPE_B:
ebfd86fd 5623 if (intel_crtc->config.fdi_lanes > 2)
01a415fd
DV		 5624 WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
5625 else
5626 cpt_enable_fdi_bc_bifurcation(dev);
5627
ebfd86fd 5628 break;
01a415fd 5629 case PIPE_C:
01a415fd
DV		 5630 cpt_enable_fdi_bc_bifurcation(dev);
5631
ebfd86fd 5632 break;
01a415fd
DV		 5633 default:
5634 BUG();
5635 }
5636}
5637
d4b1931c
PZ		 5638int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
5639{
5640 /*
5641 * Account for spread spectrum to avoid
5642 * oversubscribing the link. Max center spread
5643 * is 2.5%; use 5% for safety's sake.
5644 */
5645 u32 bps = target_clock * bpp * 21 / 20;
5646 return bps / (link_bw * 8) + 1;
5647}
5648
7429e9d4 5649static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
6cf86a5e 5650{
7429e9d4 5651 return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
f48d8f23
PZ		 5652}
5653
de13a2e3 5654static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
7429e9d4 5655 u32 *fp,
9a7c7890 5656 intel_clock_t *reduced_clock, u32 *fp2)
79e53945 5657{
de13a2e3 5658 struct drm_crtc *crtc = &intel_crtc->base;
79e53945
JB		 5659 struct drm_device *dev = crtc->dev;
5660 struct drm_i915_private *dev_priv = dev->dev_private;
de13a2e3
PZ		 5661 struct intel_encoder *intel_encoder;
5662 uint32_t dpll;
6cc5f341 5663 int factor, num_connectors = 0;
09ede541 5664 bool is_lvds = false, is_sdvo = false;
79e53945 5665
de13a2e3
PZ		 5666 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5667 switch (intel_encoder->type) {
79e53945
JB		 5668 case INTEL_OUTPUT_LVDS:
5669 is_lvds = true;
5670 break;
5671 case INTEL_OUTPUT_SDVO:
7d57382e 5672 case INTEL_OUTPUT_HDMI:
79e53945 5673 is_sdvo = true;
79e53945 5674 break;
79e53945 5675 }
43565a06 5676
c751ce4f 5677 num_connectors++;
79e53945 5678 }
79e53945 5679
c1858123 5680 /* Enable autotuning of the PLL clock (if permissible) */
8febb297
EA		 5681 factor = 21;
5682 if (is_lvds) {
5683 if ((intel_panel_use_ssc(dev_priv) &&
41aa3448 5684 dev_priv->vbt.lvds_ssc_freq == 100) ||
f0b44056 5685 (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
8febb297 5686 factor = 25;
09ede541 5687 } else if (intel_crtc->config.sdvo_tv_clock)
8febb297 5688 factor = 20;
c1858123 5689
7429e9d4 5690 if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor))
7d0ac5b7 5691 *fp |= FP_CB_TUNE;
2c07245f 5692
9a7c7890
DV		 5693 if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
5694 *fp2 |= FP_CB_TUNE;
5695
5eddb70b 5696 dpll = 0;
2c07245f 5697
a07d6787
EA		 5698 if (is_lvds)
5699 dpll |= DPLLB_MODE_LVDS;
5700 else
5701 dpll |= DPLLB_MODE_DAC_SERIAL;
198a037f 5702
ef1b460d
DV		 5703 dpll |= (intel_crtc->config.pixel_multiplier - 1)
5704 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
198a037f
DV		 5705
5706 if (is_sdvo)
4a33e48d 5707 dpll |= DPLL_SDVO_HIGH_SPEED;
9566e9af 5708 if (intel_crtc->config.has_dp_encoder)
4a33e48d 5709 dpll |= DPLL_SDVO_HIGH_SPEED;
79e53945 5710
a07d6787 5711 /* compute bitmask from p1 value */
7429e9d4 5712 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
a07d6787 5713 /* also FPA1 */
7429e9d4 5714 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
a07d6787 5715
7429e9d4 5716 switch (intel_crtc->config.dpll.p2) {
a07d6787
EA		 5717 case 5:
5718 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
5719 break;
5720 case 7:
5721 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
5722 break;
5723 case 10:
5724 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
5725 break;
5726 case 14:
5727 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
5728 break;
79e53945
JB		 5729 }
5730
b4c09f3b 5731 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
43565a06 5732 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
79e53945
JB		 5733 else
5734 dpll |= PLL_REF_INPUT_DREFCLK;
5735
959e16d6 5736 return dpll | DPLL_VCO_ENABLE;
de13a2e3
PZ		 5737}
5738
5739static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
de13a2e3
PZ		 5740 int x, int y,
5741 struct drm_framebuffer *fb)
5742{
5743 struct drm_device *dev = crtc->dev;
5744 struct drm_i915_private *dev_priv = dev->dev_private;
5745 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5746 int pipe = intel_crtc->pipe;
5747 int plane = intel_crtc->plane;
5748 int num_connectors = 0;
5749 intel_clock_t clock, reduced_clock;
cbbab5bd 5750 u32 dpll = 0, fp = 0, fp2 = 0;
e2f12b07 5751 bool ok, has_reduced_clock = false;
8b47047b 5752 bool is_lvds = false;
de13a2e3 5753 struct intel_encoder *encoder;
e2b78267 5754 struct intel_shared_dpll *pll;
de13a2e3 5755 int ret;
de13a2e3
PZ		 5756
5757 for_each_encoder_on_crtc(dev, crtc, encoder) {
5758 switch (encoder->type) {
5759 case INTEL_OUTPUT_LVDS:
5760 is_lvds = true;
5761 break;
de13a2e3
PZ		 5762 }
5763
5764 num_connectors++;
a07d6787 5765 }
79e53945 5766
5dc5298b
PZ		 5767 WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
5768 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
a07d6787 5769
ff9a6750 5770 ok = ironlake_compute_clocks(crtc, &clock,
de13a2e3 5771 &has_reduced_clock, &reduced_clock);
ee9300bb 5772 if (!ok && !intel_crtc->config.clock_set) {
de13a2e3
PZ		 5773 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5774 return -EINVAL;
79e53945 5775 }
f47709a9
DV		 5776 /* Compat-code for transition, will disappear. */
5777 if (!intel_crtc->config.clock_set) {
5778 intel_crtc->config.dpll.n = clock.n;
5779 intel_crtc->config.dpll.m1 = clock.m1;
5780 intel_crtc->config.dpll.m2 = clock.m2;
5781 intel_crtc->config.dpll.p1 = clock.p1;
5782 intel_crtc->config.dpll.p2 = clock.p2;
5783 }
79e53945 5784
de13a2e3
PZ		 5785 /* Ensure that the cursor is valid for the new mode before changing... */
5786 intel_crtc_update_cursor(crtc, true);
5787
5dc5298b 5788 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
8b47047b 5789 if (intel_crtc->config.has_pch_encoder) {
7429e9d4 5790 fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
cbbab5bd 5791 if (has_reduced_clock)
7429e9d4 5792 fp2 = i9xx_dpll_compute_fp(&reduced_clock);
cbbab5bd 5793
7429e9d4 5794 dpll = ironlake_compute_dpll(intel_crtc,
cbbab5bd
DV		 5795 &fp, &reduced_clock,
5796 has_reduced_clock ? &fp2 : NULL);
5797
959e16d6 5798 intel_crtc->config.dpll_hw_state.dpll = dpll;
66e985c0
DV		 5799 intel_crtc->config.dpll_hw_state.fp0 = fp;
5800 if (has_reduced_clock)
5801 intel_crtc->config.dpll_hw_state.fp1 = fp2;
5802 else
5803 intel_crtc->config.dpll_hw_state.fp1 = fp;
5804
b89a1d39 5805 pll = intel_get_shared_dpll(intel_crtc);
ee7b9f93 5806 if (pll == NULL) {
84f44ce7
VS		 5807 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
5808 pipe_name(pipe));
4b645f14
JB		 5809 return -EINVAL;
5810 }
ee7b9f93 5811 } else
e72f9fbf 5812 intel_put_shared_dpll(intel_crtc);
79e53945 5813
03afc4a2
DV		 5814 if (intel_crtc->config.has_dp_encoder)
5815 intel_dp_set_m_n(intel_crtc);
79e53945 5816
bcd644e0
DV		 5817 if (is_lvds && has_reduced_clock && i915_powersave)
5818 intel_crtc->lowfreq_avail = true;
5819 else
5820 intel_crtc->lowfreq_avail = false;
e2b78267
DV		 5821
5822 if (intel_crtc->config.has_pch_encoder) {
5823 pll = intel_crtc_to_shared_dpll(intel_crtc);
5824
652c393a
JB		 5825 }
5826
8a654f3b 5827 intel_set_pipe_timings(intel_crtc);
5eddb70b 5828
ca3a0ff8 5829 if (intel_crtc->config.has_pch_encoder) {
ca3a0ff8
DV		 5830 intel_cpu_transcoder_set_m_n(intel_crtc,
5831 &intel_crtc->config.fdi_m_n);
5832 }
2c07245f 5833
ebfd86fd
DV		 5834 if (IS_IVYBRIDGE(dev))
5835 ivybridge_update_fdi_bc_bifurcation(intel_crtc);
79e53945 5836
6ff93609 5837 ironlake_set_pipeconf(crtc);
79e53945 5838
a1f9e77e
PZ		 5839 /* Set up the display plane register */
5840 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
b24e7179 5841 POSTING_READ(DSPCNTR(plane));
79e53945 5842
94352cf9 5843 ret = intel_pipe_set_base(crtc, x, y, fb);
7662c8bd
SL		 5844
5845 intel_update_watermarks(dev);
5846
1857e1da 5847 return ret;
79e53945
JB		 5848}
5849
72419203
DV		 5850static void ironlake_get_fdi_m_n_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 enum transcoder transcoder = pipe_config->cpu_transcoder;
5856
5857 pipe_config->fdi_m_n.link_m = I915_READ(PIPE_LINK_M1(transcoder));
5858 pipe_config->fdi_m_n.link_n = I915_READ(PIPE_LINK_N1(transcoder));
5859 pipe_config->fdi_m_n.gmch_m = I915_READ(PIPE_DATA_M1(transcoder))
5860 & ~TU_SIZE_MASK;
5861 pipe_config->fdi_m_n.gmch_n = I915_READ(PIPE_DATA_N1(transcoder));
5862 pipe_config->fdi_m_n.tu = ((I915_READ(PIPE_DATA_M1(transcoder))
5863 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
5864}
5865
2fa2fe9a
DV		 5866static void ironlake_get_pfit_config(struct intel_crtc *crtc,
5867 struct intel_crtc_config *pipe_config)
5868{
5869 struct drm_device *dev = crtc->base.dev;
5870 struct drm_i915_private *dev_priv = dev->dev_private;
5871 uint32_t tmp;
5872
5873 tmp = I915_READ(PF_CTL(crtc->pipe));
5874
5875 if (tmp & PF_ENABLE) {
5876 pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe));
5877 pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe));
cb8b2a30
DV		 5878
5879 /* We currently do not free assignements of panel fitters on
5880 * ivb/hsw (since we don't use the higher upscaling modes which
5881 * differentiates them) so just WARN about this case for now. */
5882 if (IS_GEN7(dev)) {
5883 WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) !=
5884 PF_PIPE_SEL_IVB(crtc->pipe));
5885 }
2fa2fe9a 5886 }
79e53945
JB		 5887}
5888
0e8ffe1b
DV		 5889static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
5890 struct intel_crtc_config *pipe_config)
5891{
5892 struct drm_device *dev = crtc->base.dev;
5893 struct drm_i915_private *dev_priv = dev->dev_private;
5894 uint32_t tmp;
5895
e143a21c 5896 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
c0d43d62 5897 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
eccb140b 5898
0e8ffe1b
DV		 5899 tmp = I915_READ(PIPECONF(crtc->pipe));
5900 if (!(tmp & PIPECONF_ENABLE))
5901 return false;
5902
ab9412ba 5903 if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
66e985c0
DV		 5904 struct intel_shared_dpll *pll;
5905
88adfff1
DV		 5906 pipe_config->has_pch_encoder = true;
5907
627eb5a3
DV		 5908 tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
5909 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
5910 FDI_DP_PORT_WIDTH_SHIFT) + 1;
72419203
DV		 5911
5912 ironlake_get_fdi_m_n_config(crtc, pipe_config);
6c49f241 5913
c0d43d62 5914 if (HAS_PCH_IBX(dev_priv->dev)) {
d94ab068
DV		 5915 pipe_config->shared_dpll =
5916 (enum intel_dpll_id) crtc->pipe;
c0d43d62
DV		 5917 } else {
5918 tmp = I915_READ(PCH_DPLL_SEL);
5919 if (tmp & TRANS_DPLLB_SEL(crtc->pipe))
5920 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B;
5921 else
5922 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A;
5923 }
66e985c0
DV		 5924
5925 pll = &dev_priv->shared_dplls[pipe_config->shared_dpll];
5926
5927 WARN_ON(!pll->get_hw_state(dev_priv, pll,
5928 &pipe_config->dpll_hw_state));
c93f54cf
DV		 5929
5930 tmp = pipe_config->dpll_hw_state.dpll;
5931 pipe_config->pixel_multiplier =
5932 ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK)
5933 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1;
6c49f241
DV		 5934 } else {
5935 pipe_config->pixel_multiplier = 1;
627eb5a3
DV		 5936 }
5937
1bd1bd80
DV		 5938 intel_get_pipe_timings(crtc, pipe_config);
5939
2fa2fe9a
DV		 5940 ironlake_get_pfit_config(crtc, pipe_config);
5941
0e8ffe1b
DV		 5942 return true;
5943}
5944
be256dc7
PZ		 5945static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
5946{
5947 struct drm_device *dev = dev_priv->dev;
5948 struct intel_ddi_plls *plls = &dev_priv->ddi_plls;
5949 struct intel_crtc *crtc;
5950 unsigned long irqflags;
bd633a7c 5951 uint32_t val;
be256dc7
PZ		 5952
5953 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
5954 WARN(crtc->base.enabled, "CRTC for pipe %c enabled\n",
5955 pipe_name(crtc->pipe));
5956
5957 WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n");
5958 WARN(plls->spll_refcount, "SPLL enabled\n");
5959 WARN(plls->wrpll1_refcount, "WRPLL1 enabled\n");
5960 WARN(plls->wrpll2_refcount, "WRPLL2 enabled\n");
5961 WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n");
5962 WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE,
5963 "CPU PWM1 enabled\n");
5964 WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE,
5965 "CPU PWM2 enabled\n");
5966 WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE,
5967 "PCH PWM1 enabled\n");
5968 WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
5969 "Utility pin enabled\n");
5970 WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n");
5971
5972 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
5973 val = I915_READ(DEIMR);
5974 WARN((val & ~DE_PCH_EVENT_IVB) != val,
5975 "Unexpected DEIMR bits enabled: 0x%x\n", val);
5976 val = I915_READ(SDEIMR);
bd633a7c 5977 WARN((val | SDE_HOTPLUG_MASK_CPT) != 0xffffffff,
be256dc7
PZ		 5978 "Unexpected SDEIMR bits enabled: 0x%x\n", val);
5979 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
5980}
5981
5982/*
5983 * This function implements pieces of two sequences from BSpec:
5984 * - Sequence for display software to disable LCPLL
5985 * - Sequence for display software to allow package C8+
5986 * The steps implemented here are just the steps that actually touch the LCPLL
5987 * register. Callers should take care of disabling all the display engine
5988 * functions, doing the mode unset, fixing interrupts, etc.
5989 */
5990void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
5991 bool switch_to_fclk, bool allow_power_down)
5992{
5993 uint32_t val;
5994
5995 assert_can_disable_lcpll(dev_priv);
5996
5997 val = I915_READ(LCPLL_CTL);
5998
5999 if (switch_to_fclk) {
6000 val |= LCPLL_CD_SOURCE_FCLK;
6001 I915_WRITE(LCPLL_CTL, val);
6002
6003 if (wait_for_atomic_us(I915_READ(LCPLL_CTL) &
6004 LCPLL_CD_SOURCE_FCLK_DONE, 1))
6005 DRM_ERROR("Switching to FCLK failed\n");
6006
6007 val = I915_READ(LCPLL_CTL);
6008 }
6009
6010 val |= LCPLL_PLL_DISABLE;
6011 I915_WRITE(LCPLL_CTL, val);
6012 POSTING_READ(LCPLL_CTL);
6013
6014 if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1))
6015 DRM_ERROR("LCPLL still locked\n");
6016
6017 val = I915_READ(D_COMP);
6018 val |= D_COMP_COMP_DISABLE;
6019 I915_WRITE(D_COMP, val);
6020 POSTING_READ(D_COMP);
6021 ndelay(100);
6022
6023 if (wait_for((I915_READ(D_COMP) & D_COMP_RCOMP_IN_PROGRESS) == 0, 1))
6024 DRM_ERROR("D_COMP RCOMP still in progress\n");
6025
6026 if (allow_power_down) {
6027 val = I915_READ(LCPLL_CTL);
6028 val |= LCPLL_POWER_DOWN_ALLOW;
6029 I915_WRITE(LCPLL_CTL, val);
6030 POSTING_READ(LCPLL_CTL);
6031 }
6032}
6033
6034/*
6035 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
6036 * source.
6037 */
6038void hsw_restore_lcpll(struct drm_i915_private *dev_priv)
6039{
6040 uint32_t val;
6041
6042 val = I915_READ(LCPLL_CTL);
6043
6044 if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK |
6045 LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK)
6046 return;
6047
215733fa
PZ		 6048 /* Make sure we're not on PC8 state before disabling PC8, otherwise
6049 * we'll hang the machine! */
6050 dev_priv->uncore.funcs.force_wake_get(dev_priv);
6051
be256dc7
PZ		 6052 if (val & LCPLL_POWER_DOWN_ALLOW) {
6053 val &= ~LCPLL_POWER_DOWN_ALLOW;
6054 I915_WRITE(LCPLL_CTL, val);
35d8f2eb 6055 POSTING_READ(LCPLL_CTL);
be256dc7
PZ		 6056 }
6057
6058 val = I915_READ(D_COMP);
6059 val |= D_COMP_COMP_FORCE;
6060 val &= ~D_COMP_COMP_DISABLE;
6061 I915_WRITE(D_COMP, val);
35d8f2eb 6062 POSTING_READ(D_COMP);
be256dc7
PZ		 6063
6064 val = I915_READ(LCPLL_CTL);
6065 val &= ~LCPLL_PLL_DISABLE;
6066 I915_WRITE(LCPLL_CTL, val);
6067
6068 if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5))
6069 DRM_ERROR("LCPLL not locked yet\n");
6070
6071 if (val & LCPLL_CD_SOURCE_FCLK) {
6072 val = I915_READ(LCPLL_CTL);
6073 val &= ~LCPLL_CD_SOURCE_FCLK;
6074 I915_WRITE(LCPLL_CTL, val);
6075
6076 if (wait_for_atomic_us((I915_READ(LCPLL_CTL) &
6077 LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
6078 DRM_ERROR("Switching back to LCPLL failed\n");
6079 }
215733fa
PZ		 6080
6081 dev_priv->uncore.funcs.force_wake_put(dev_priv);
be256dc7
PZ		 6082}
6083
c67a470b
PZ		 6084void hsw_enable_pc8_work(struct work_struct *__work)
6085{
6086 struct drm_i915_private *dev_priv =
6087 container_of(to_delayed_work(__work), struct drm_i915_private,
6088 pc8.enable_work);
6089 struct drm_device *dev = dev_priv->dev;
6090 uint32_t val;
6091
6092 if (dev_priv->pc8.enabled)
6093 return;
6094
6095 DRM_DEBUG_KMS("Enabling package C8+\n");
6096
6097 dev_priv->pc8.enabled = true;
6098
6099 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
6100 val = I915_READ(SOUTH_DSPCLK_GATE_D);
6101 val &= ~PCH_LP_PARTITION_LEVEL_DISABLE;
6102 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
6103 }
6104
6105 lpt_disable_clkout_dp(dev);
6106 hsw_pc8_disable_interrupts(dev);
6107 hsw_disable_lcpll(dev_priv, true, true);
6108}
6109
6110static void __hsw_enable_package_c8(struct drm_i915_private *dev_priv)
6111{
6112 WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
6113 WARN(dev_priv->pc8.disable_count < 1,
6114 "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
6115
6116 dev_priv->pc8.disable_count--;
6117 if (dev_priv->pc8.disable_count != 0)
6118 return;
6119
6120 schedule_delayed_work(&dev_priv->pc8.enable_work,
90058745 6121 msecs_to_jiffies(i915_pc8_timeout));
c67a470b
PZ		 6122}
6123
6124static void __hsw_disable_package_c8(struct drm_i915_private *dev_priv)
6125{
6126 struct drm_device *dev = dev_priv->dev;
6127 uint32_t val;
6128
6129 WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
6130 WARN(dev_priv->pc8.disable_count < 0,
6131 "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
6132
6133 dev_priv->pc8.disable_count++;
6134 if (dev_priv->pc8.disable_count != 1)
6135 return;
6136
6137 cancel_delayed_work_sync(&dev_priv->pc8.enable_work);
6138 if (!dev_priv->pc8.enabled)
6139 return;
6140
6141 DRM_DEBUG_KMS("Disabling package C8+\n");
6142
6143 hsw_restore_lcpll(dev_priv);
6144 hsw_pc8_restore_interrupts(dev);
6145 lpt_init_pch_refclk(dev);
6146
6147 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
6148 val = I915_READ(SOUTH_DSPCLK_GATE_D);
6149 val |= PCH_LP_PARTITION_LEVEL_DISABLE;
6150 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
6151 }
6152
6153 intel_prepare_ddi(dev);
6154 i915_gem_init_swizzling(dev);
6155 mutex_lock(&dev_priv->rps.hw_lock);
6156 gen6_update_ring_freq(dev);
6157 mutex_unlock(&dev_priv->rps.hw_lock);
6158 dev_priv->pc8.enabled = false;
6159}
6160
6161void hsw_enable_package_c8(struct drm_i915_private *dev_priv)
6162{
6163 mutex_lock(&dev_priv->pc8.lock);
6164 __hsw_enable_package_c8(dev_priv);
6165 mutex_unlock(&dev_priv->pc8.lock);
6166}
6167
6168void hsw_disable_package_c8(struct drm_i915_private *dev_priv)
6169{
6170 mutex_lock(&dev_priv->pc8.lock);
6171 __hsw_disable_package_c8(dev_priv);
6172 mutex_unlock(&dev_priv->pc8.lock);
6173}
6174
6175static bool hsw_can_enable_package_c8(struct drm_i915_private *dev_priv)
6176{
6177 struct drm_device *dev = dev_priv->dev;
6178 struct intel_crtc *crtc;
6179 uint32_t val;
6180
6181 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
6182 if (crtc->base.enabled)
6183 return false;
6184
6185 /* This case is still possible since we have the i915.disable_power_well
6186 * parameter and also the KVMr or something else might be requesting the
6187 * power well. */
6188 val = I915_READ(HSW_PWR_WELL_DRIVER);
6189 if (val != 0) {
6190 DRM_DEBUG_KMS("Not enabling PC8: power well on\n");
6191 return false;
6192 }
6193
6194 return true;
6195}
6196
6197/* Since we're called from modeset_global_resources there's no way to
6198 * symmetrically increase and decrease the refcount, so we use
6199 * dev_priv->pc8.requirements_met to track whether we already have the refcount
6200 * or not.
6201 */
6202static void hsw_update_package_c8(struct drm_device *dev)
6203{
6204 struct drm_i915_private *dev_priv = dev->dev_private;
6205 bool allow;
6206
6207 if (!i915_enable_pc8)
6208 return;
6209
6210 mutex_lock(&dev_priv->pc8.lock);
6211
6212 allow = hsw_can_enable_package_c8(dev_priv);
6213
6214 if (allow == dev_priv->pc8.requirements_met)
6215 goto done;
6216
6217 dev_priv->pc8.requirements_met = allow;
6218
6219 if (allow)
6220 __hsw_enable_package_c8(dev_priv);
6221 else
6222 __hsw_disable_package_c8(dev_priv);
6223
6224done:
6225 mutex_unlock(&dev_priv->pc8.lock);
6226}
6227
6228static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv)
6229{
6230 if (!dev_priv->pc8.gpu_idle) {
6231 dev_priv->pc8.gpu_idle = true;
6232 hsw_enable_package_c8(dev_priv);
6233 }
6234}
6235
6236static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv)
6237{
6238 if (dev_priv->pc8.gpu_idle) {
6239 dev_priv->pc8.gpu_idle = false;
6240 hsw_disable_package_c8(dev_priv);
6241 }
be256dc7
PZ		 6242}
6243
d6dd9eb1
DV		 6244static void haswell_modeset_global_resources(struct drm_device *dev)
6245{
d6dd9eb1
DV		 6246 bool enable = false;
6247 struct intel_crtc *crtc;
d6dd9eb1
DV		 6248
6249 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
e7a639c4
DV		 6250 if (!crtc->base.enabled)
6251 continue;
d6dd9eb1 6252
e7a639c4
DV		 6253 if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.size ||
6254 crtc->config.cpu_transcoder != TRANSCODER_EDP)
d6dd9eb1
DV		 6255 enable = true;
6256 }
6257
d6dd9eb1 6258 intel_set_power_well(dev, enable);
c67a470b
PZ		 6259
6260 hsw_update_package_c8(dev);
d6dd9eb1
DV		 6261}
6262
09b4ddf9 6263static int haswell_crtc_mode_set(struct drm_crtc *crtc,
09b4ddf9
PZ		 6264 int x, int y,
6265 struct drm_framebuffer *fb)
6266{
6267 struct drm_device *dev = crtc->dev;
6268 struct drm_i915_private *dev_priv = dev->dev_private;
6269 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
09b4ddf9 6270 int plane = intel_crtc->plane;
09b4ddf9 6271 int ret;
09b4ddf9 6272
ff9a6750 6273 if (!intel_ddi_pll_mode_set(crtc))
6441ab5f
PZ		 6274 return -EINVAL;
6275
09b4ddf9
PZ		 6276 /* Ensure that the cursor is valid for the new mode before changing... */
6277 intel_crtc_update_cursor(crtc, true);
6278
03afc4a2
DV		 6279 if (intel_crtc->config.has_dp_encoder)
6280 intel_dp_set_m_n(intel_crtc);
09b4ddf9
PZ		 6281
6282 intel_crtc->lowfreq_avail = false;
09b4ddf9 6283
8a654f3b 6284 intel_set_pipe_timings(intel_crtc);
09b4ddf9 6285
ca3a0ff8 6286 if (intel_crtc->config.has_pch_encoder) {
ca3a0ff8
DV		 6287 intel_cpu_transcoder_set_m_n(intel_crtc,
6288 &intel_crtc->config.fdi_m_n);
6289 }
09b4ddf9 6290
6ff93609 6291 haswell_set_pipeconf(crtc);
09b4ddf9 6292
50f3b016 6293 intel_set_pipe_csc(crtc);
86d3efce 6294
09b4ddf9 6295 /* Set up the display plane register */
86d3efce 6296 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
09b4ddf9
PZ		 6297 POSTING_READ(DSPCNTR(plane));
6298
6299 ret = intel_pipe_set_base(crtc, x, y, fb);
6300
6301 intel_update_watermarks(dev);
6302
1f803ee5 6303 return ret;
79e53945
JB		 6304}
6305
0e8ffe1b
DV		 6306static bool haswell_get_pipe_config(struct intel_crtc *crtc,
6307 struct intel_crtc_config *pipe_config)
6308{
6309 struct drm_device *dev = crtc->base.dev;
6310 struct drm_i915_private *dev_priv = dev->dev_private;
2fa2fe9a 6311 enum intel_display_power_domain pfit_domain;
0e8ffe1b
DV		 6312 uint32_t tmp;
6313
e143a21c 6314 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
c0d43d62
DV		 6315 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
6316
eccb140b
DV		 6317 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
6318 if (tmp & TRANS_DDI_FUNC_ENABLE) {
6319 enum pipe trans_edp_pipe;
6320 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
6321 default:
6322 WARN(1, "unknown pipe linked to edp transcoder\n");
6323 case TRANS_DDI_EDP_INPUT_A_ONOFF:
6324 case TRANS_DDI_EDP_INPUT_A_ON:
6325 trans_edp_pipe = PIPE_A;
6326 break;
6327 case TRANS_DDI_EDP_INPUT_B_ONOFF:
6328 trans_edp_pipe = PIPE_B;
6329 break;
6330 case TRANS_DDI_EDP_INPUT_C_ONOFF:
6331 trans_edp_pipe = PIPE_C;
6332 break;
6333 }
6334
6335 if (trans_edp_pipe == crtc->pipe)
6336 pipe_config->cpu_transcoder = TRANSCODER_EDP;
6337 }
6338
b97186f0 6339 if (!intel_display_power_enabled(dev,
eccb140b 6340 POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder)))
2bfce950
PZ		 6341 return false;
6342
eccb140b 6343 tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder));
0e8ffe1b
DV		 6344 if (!(tmp & PIPECONF_ENABLE))
6345 return false;
6346
88adfff1 6347 /*
f196e6be 6348 * Haswell has only FDI/PCH transcoder A. It is which is connected to
88adfff1
DV		 6349 * DDI E. So just check whether this pipe is wired to DDI E and whether
6350 * the PCH transcoder is on.
6351 */
eccb140b 6352 tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
88adfff1 6353 if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
ab9412ba 6354 I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
88adfff1
DV		 6355 pipe_config->has_pch_encoder = true;
6356
627eb5a3
DV		 6357 tmp = I915_READ(FDI_RX_CTL(PIPE_A));
6358 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
6359 FDI_DP_PORT_WIDTH_SHIFT) + 1;
72419203
DV		 6360
6361 ironlake_get_fdi_m_n_config(crtc, pipe_config);
627eb5a3
DV		 6362 }
6363
1bd1bd80
DV		 6364 intel_get_pipe_timings(crtc, pipe_config);
6365
2fa2fe9a
DV		 6366 pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
6367 if (intel_display_power_enabled(dev, pfit_domain))
6368 ironlake_get_pfit_config(crtc, pipe_config);
88adfff1 6369
42db64ef
PZ		 6370 pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) &&
6371 (I915_READ(IPS_CTL) & IPS_ENABLE);
6372
6c49f241
DV		 6373 pipe_config->pixel_multiplier = 1;
6374
0e8ffe1b
DV		 6375 return true;
6376}
6377
f564048e 6378static int intel_crtc_mode_set(struct drm_crtc *crtc,
f564048e 6379 int x, int y,
94352cf9 6380 struct drm_framebuffer *fb)
f564048e
EA		 6381{
6382 struct drm_device *dev = crtc->dev;
6383 struct drm_i915_private *dev_priv = dev->dev_private;
9256aa19 6384 struct intel_encoder *encoder;
0b701d27 6385 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
b8cecdf5 6386 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
0b701d27 6387 int pipe = intel_crtc->pipe;
f564048e
EA		 6388 int ret;
6389
0b701d27 6390 drm_vblank_pre_modeset(dev, pipe);
7662c8bd 6391
b8cecdf5
DV		 6392 ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
6393
79e53945 6394 drm_vblank_post_modeset(dev, pipe);
5c3b82e2 6395
9256aa19
DV		 6396 if (ret != 0)
6397 return ret;
6398
6399 for_each_encoder_on_crtc(dev, crtc, encoder) {
6400 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
6401 encoder->base.base.id,
6402 drm_get_encoder_name(&encoder->base),
6403 mode->base.id, mode->name);
36f2d1f1 6404 encoder->mode_set(encoder);
9256aa19
DV		 6405 }
6406
6407 return 0;
79e53945
JB		 6408}
6409
3a9627f4
WF		 6410static bool intel_eld_uptodate(struct drm_connector *connector,
6411 int reg_eldv, uint32_t bits_eldv,
6412 int reg_elda, uint32_t bits_elda,
6413 int reg_edid)
6414{
6415 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6416 uint8_t *eld = connector->eld;
6417 uint32_t i;
6418
6419 i = I915_READ(reg_eldv);
6420 i &= bits_eldv;
6421
6422 if (!eld[0])
6423 return !i;
6424
6425 if (!i)
6426 return false;
6427
6428 i = I915_READ(reg_elda);
6429 i &= ~bits_elda;
6430 I915_WRITE(reg_elda, i);
6431
6432 for (i = 0; i < eld[2]; i++)
6433 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
6434 return false;
6435
6436 return true;
6437}
6438
e0dac65e
WF		 6439static void g4x_write_eld(struct drm_connector *connector,
6440 struct drm_crtc *crtc)
6441{
6442 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6443 uint8_t *eld = connector->eld;
6444 uint32_t eldv;
6445 uint32_t len;
6446 uint32_t i;
6447
6448 i = I915_READ(G4X_AUD_VID_DID);
6449
6450 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
6451 eldv = G4X_ELDV_DEVCL_DEVBLC;
6452 else
6453 eldv = G4X_ELDV_DEVCTG;
6454
3a9627f4
WF		 6455 if (intel_eld_uptodate(connector,
6456 G4X_AUD_CNTL_ST, eldv,
6457 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
6458 G4X_HDMIW_HDMIEDID))
6459 return;
6460
e0dac65e
WF		 6461 i = I915_READ(G4X_AUD_CNTL_ST);
6462 i &= ~(eldv | G4X_ELD_ADDR);
6463 len = (i >> 9) & 0x1f; /* ELD buffer size */
6464 I915_WRITE(G4X_AUD_CNTL_ST, i);
6465
6466 if (!eld[0])
6467 return;
6468
6469 len = min_t(uint8_t, eld[2], len);
6470 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6471 for (i = 0; i < len; i++)
6472 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
6473
6474 i = I915_READ(G4X_AUD_CNTL_ST);
6475 i |= eldv;
6476 I915_WRITE(G4X_AUD_CNTL_ST, i);
6477}
6478
83358c85
WX		 6479static void haswell_write_eld(struct drm_connector *connector,
6480 struct drm_crtc *crtc)
6481{
6482 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6483 uint8_t *eld = connector->eld;
6484 struct drm_device *dev = crtc->dev;
7b9f35a6 6485 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
83358c85
WX		 6486 uint32_t eldv;
6487 uint32_t i;
6488 int len;
6489 int pipe = to_intel_crtc(crtc)->pipe;
6490 int tmp;
6491
6492 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
6493 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
6494 int aud_config = HSW_AUD_CFG(pipe);
6495 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
6496
6497
6498 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
6499
6500 /* Audio output enable */
6501 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
6502 tmp = I915_READ(aud_cntrl_st2);
6503 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
6504 I915_WRITE(aud_cntrl_st2, tmp);
6505
6506 /* Wait for 1 vertical blank */
6507 intel_wait_for_vblank(dev, pipe);
6508
6509 /* Set ELD valid state */
6510 tmp = I915_READ(aud_cntrl_st2);
6511 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp);
6512 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
6513 I915_WRITE(aud_cntrl_st2, tmp);
6514 tmp = I915_READ(aud_cntrl_st2);
6515 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp);
6516
6517 /* Enable HDMI mode */
6518 tmp = I915_READ(aud_config);
6519 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp);
6520 /* clear N_programing_enable and N_value_index */
6521 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
6522 I915_WRITE(aud_config, tmp);
6523
6524 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6525
6526 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
7b9f35a6 6527 intel_crtc->eld_vld = true;
83358c85
WX		 6528
6529 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6530 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6531 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6532 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6533 } else
6534 I915_WRITE(aud_config, 0);
6535
6536 if (intel_eld_uptodate(connector,
6537 aud_cntrl_st2, eldv,
6538 aud_cntl_st, IBX_ELD_ADDRESS,
6539 hdmiw_hdmiedid))
6540 return;
6541
6542 i = I915_READ(aud_cntrl_st2);
6543 i &= ~eldv;
6544 I915_WRITE(aud_cntrl_st2, i);
6545
6546 if (!eld[0])
6547 return;
6548
6549 i = I915_READ(aud_cntl_st);
6550 i &= ~IBX_ELD_ADDRESS;
6551 I915_WRITE(aud_cntl_st, i);
6552 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6553 DRM_DEBUG_DRIVER("port num:%d\n", i);
6554
6555 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6556 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6557 for (i = 0; i < len; i++)
6558 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6559
6560 i = I915_READ(aud_cntrl_st2);
6561 i |= eldv;
6562 I915_WRITE(aud_cntrl_st2, i);
6563
6564}
6565
e0dac65e
WF		 6566static void ironlake_write_eld(struct drm_connector *connector,
6567 struct drm_crtc *crtc)
6568{
6569 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6570 uint8_t *eld = connector->eld;
6571 uint32_t eldv;
6572 uint32_t i;
6573 int len;
6574 int hdmiw_hdmiedid;
b6daa025 6575 int aud_config;
e0dac65e
WF		 6576 int aud_cntl_st;
6577 int aud_cntrl_st2;
9b138a83 6578 int pipe = to_intel_crtc(crtc)->pipe;
e0dac65e 6579
b3f33cbf 6580 if (HAS_PCH_IBX(connector->dev)) {
9b138a83
WX		 6581 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
6582 aud_config = IBX_AUD_CFG(pipe);
6583 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
1202b4c6 6584 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
e0dac65e 6585 } else {
9b138a83
WX		 6586 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
6587 aud_config = CPT_AUD_CFG(pipe);
6588 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
1202b4c6 6589 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
e0dac65e
WF		 6590 }
6591
9b138a83 6592 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
e0dac65e
WF		 6593
6594 i = I915_READ(aud_cntl_st);
9b138a83 6595 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
e0dac65e
WF		 6596 if (!i) {
6597 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
6598 /* operate blindly on all ports */
1202b4c6
WF		 6599 eldv = IBX_ELD_VALIDB;
6600 eldv |= IBX_ELD_VALIDB << 4;
6601 eldv |= IBX_ELD_VALIDB << 8;
e0dac65e 6602 } else {
2582a850 6603 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i));
1202b4c6 6604 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
e0dac65e
WF		 6605 }
6606
3a9627f4
WF		 6607 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6608 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6609 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
b6daa025
WF		 6610 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6611 } else
6612 I915_WRITE(aud_config, 0);
e0dac65e 6613
3a9627f4
WF		 6614 if (intel_eld_uptodate(connector,
6615 aud_cntrl_st2, eldv,
6616 aud_cntl_st, IBX_ELD_ADDRESS,
6617 hdmiw_hdmiedid))
6618 return;
6619
e0dac65e
WF		 6620 i = I915_READ(aud_cntrl_st2);
6621 i &= ~eldv;
6622 I915_WRITE(aud_cntrl_st2, i);
6623
6624 if (!eld[0])
6625 return;
6626
e0dac65e 6627 i = I915_READ(aud_cntl_st);
1202b4c6 6628 i &= ~IBX_ELD_ADDRESS;
e0dac65e
WF		 6629 I915_WRITE(aud_cntl_st, i);
6630
6631 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6632 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6633 for (i = 0; i < len; i++)
6634 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6635
6636 i = I915_READ(aud_cntrl_st2);
6637 i |= eldv;
6638 I915_WRITE(aud_cntrl_st2, i);
6639}
6640
6641void intel_write_eld(struct drm_encoder *encoder,
6642 struct drm_display_mode *mode)
6643{
6644 struct drm_crtc *crtc = encoder->crtc;
6645 struct drm_connector *connector;
6646 struct drm_device *dev = encoder->dev;
6647 struct drm_i915_private *dev_priv = dev->dev_private;
6648
6649 connector = drm_select_eld(encoder, mode);
6650 if (!connector)
6651 return;
6652
6653 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6654 connector->base.id,
6655 drm_get_connector_name(connector),
6656 connector->encoder->base.id,
6657 drm_get_encoder_name(connector->encoder));
6658
6659 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
6660
6661 if (dev_priv->display.write_eld)
6662 dev_priv->display.write_eld(connector, crtc);
6663}
6664
79e53945
JB		 6665/** Loads the palette/gamma unit for the CRTC with the prepared values */
6666void intel_crtc_load_lut(struct drm_crtc *crtc)
6667{
6668 struct drm_device *dev = crtc->dev;
6669 struct drm_i915_private *dev_priv = dev->dev_private;
6670 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
42db64ef
PZ		 6671 enum pipe pipe = intel_crtc->pipe;
6672 int palreg = PALETTE(pipe);
79e53945 6673 int i;
42db64ef 6674 bool reenable_ips = false;
79e53945
JB		 6675
6676 /* The clocks have to be on to load the palette. */
aed3f09d 6677 if (!crtc->enabled || !intel_crtc->active)
79e53945
JB		 6678 return;
6679
23538ef1
JN		 6680 if (!HAS_PCH_SPLIT(dev_priv->dev)) {
6681 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI))
6682 assert_dsi_pll_enabled(dev_priv);
6683 else
6684 assert_pll_enabled(dev_priv, pipe);
6685 }
14420bd0 6686
f2b115e6 6687 /* use legacy palette for Ironlake */
bad720ff 6688 if (HAS_PCH_SPLIT(dev))
42db64ef
PZ		 6689 palreg = LGC_PALETTE(pipe);
6690
6691 /* Workaround : Do not read or write the pipe palette/gamma data while
6692 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
6693 */
6694 if (intel_crtc->config.ips_enabled &&
6695 ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) ==
6696 GAMMA_MODE_MODE_SPLIT)) {
6697 hsw_disable_ips(intel_crtc);
6698 reenable_ips = true;
6699 }
2c07245f 6700
79e53945
JB		 6701 for (i = 0; i < 256; i++) {
6702 I915_WRITE(palreg + 4 * i,
6703 (intel_crtc->lut_r[i] << 16) |
6704 (intel_crtc->lut_g[i] << 8) |
6705 intel_crtc->lut_b[i]);
6706 }
42db64ef
PZ		 6707
6708 if (reenable_ips)
6709 hsw_enable_ips(intel_crtc);
79e53945
JB		 6710}
6711
560b85bb
CW		 6712static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
6713{
6714 struct drm_device *dev = crtc->dev;
6715 struct drm_i915_private *dev_priv = dev->dev_private;
6716 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6717 bool visible = base != 0;
6718 u32 cntl;
6719
6720 if (intel_crtc->cursor_visible == visible)
6721 return;
6722
9db4a9c7 6723 cntl = I915_READ(_CURACNTR);
560b85bb
CW		 6724 if (visible) {
6725 /* On these chipsets we can only modify the base whilst
6726 * the cursor is disabled.
6727 */
9db4a9c7 6728 I915_WRITE(_CURABASE, base);
560b85bb
CW		 6729
6730 cntl &= ~(CURSOR_FORMAT_MASK);
6731 /* XXX width must be 64, stride 256 => 0x00 << 28 */
6732 cntl |= CURSOR_ENABLE |
6733 CURSOR_GAMMA_ENABLE |
6734 CURSOR_FORMAT_ARGB;
6735 } else
6736 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
9db4a9c7 6737 I915_WRITE(_CURACNTR, cntl);
560b85bb
CW		 6738
6739 intel_crtc->cursor_visible = visible;
6740}
6741
6742static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
6743{
6744 struct drm_device *dev = crtc->dev;
6745 struct drm_i915_private *dev_priv = dev->dev_private;
6746 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6747 int pipe = intel_crtc->pipe;
6748 bool visible = base != 0;
6749
6750 if (intel_crtc->cursor_visible != visible) {
548f245b 6751 uint32_t cntl = I915_READ(CURCNTR(pipe));
560b85bb
CW		 6752 if (base) {
6753 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
6754 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6755 cntl |= pipe << 28; /* Connect to correct pipe */
6756 } else {
6757 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6758 cntl |= CURSOR_MODE_DISABLE;
6759 }
9db4a9c7 6760 I915_WRITE(CURCNTR(pipe), cntl);
560b85bb
CW		 6761
6762 intel_crtc->cursor_visible = visible;
6763 }
6764 /* and commit changes on next vblank */
9db4a9c7 6765 I915_WRITE(CURBASE(pipe), base);
560b85bb
CW		 6766}
6767
65a21cd6
JB		 6768static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
6769{
6770 struct drm_device *dev = crtc->dev;
6771 struct drm_i915_private *dev_priv = dev->dev_private;
6772 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6773 int pipe = intel_crtc->pipe;
6774 bool visible = base != 0;
6775
6776 if (intel_crtc->cursor_visible != visible) {
6777 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
6778 if (base) {
6779 cntl &= ~CURSOR_MODE;
6780 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6781 } else {
6782 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6783 cntl |= CURSOR_MODE_DISABLE;
6784 }
1f5d76db 6785 if (IS_HASWELL(dev)) {
86d3efce 6786 cntl |= CURSOR_PIPE_CSC_ENABLE;
1f5d76db
PZ		 6787 cntl &= ~CURSOR_TRICKLE_FEED_DISABLE;
6788 }
65a21cd6
JB		 6789 I915_WRITE(CURCNTR_IVB(pipe), cntl);
6790
6791 intel_crtc->cursor_visible = visible;
6792 }
6793 /* and commit changes on next vblank */
6794 I915_WRITE(CURBASE_IVB(pipe), base);
6795}
6796
cda4b7d3 6797/* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
6b383a7f
CW		 6798static void intel_crtc_update_cursor(struct drm_crtc *crtc,
6799 bool on)
cda4b7d3
CW		 6800{
6801 struct drm_device *dev = crtc->dev;
6802 struct drm_i915_private *dev_priv = dev->dev_private;
6803 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6804 int pipe = intel_crtc->pipe;
6805 int x = intel_crtc->cursor_x;
6806 int y = intel_crtc->cursor_y;
560b85bb 6807 u32 base, pos;
cda4b7d3
CW		 6808 bool visible;
6809
6810 pos = 0;
6811
6b383a7f 6812 if (on && crtc->enabled && crtc->fb) {
cda4b7d3
CW		 6813 base = intel_crtc->cursor_addr;
6814 if (x > (int) crtc->fb->width)
6815 base = 0;
6816
6817 if (y > (int) crtc->fb->height)
6818 base = 0;
6819 } else
6820 base = 0;
6821
6822 if (x < 0) {
6823 if (x + intel_crtc->cursor_width < 0)
6824 base = 0;
6825
6826 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
6827 x = -x;
6828 }
6829 pos |= x << CURSOR_X_SHIFT;
6830
6831 if (y < 0) {
6832 if (y + intel_crtc->cursor_height < 0)
6833 base = 0;
6834
6835 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
6836 y = -y;
6837 }
6838 pos |= y << CURSOR_Y_SHIFT;
6839
6840 visible = base != 0;
560b85bb 6841 if (!visible && !intel_crtc->cursor_visible)
cda4b7d3
CW		 6842 return;
6843
0cd83aa9 6844 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
65a21cd6
JB		 6845 I915_WRITE(CURPOS_IVB(pipe), pos);
6846 ivb_update_cursor(crtc, base);
6847 } else {
6848 I915_WRITE(CURPOS(pipe), pos);
6849 if (IS_845G(dev) || IS_I865G(dev))
6850 i845_update_cursor(crtc, base);
6851 else
6852 i9xx_update_cursor(crtc, base);
6853 }
cda4b7d3
CW		 6854}
6855
79e53945 6856static int intel_crtc_cursor_set(struct drm_crtc *crtc,
05394f39 6857 struct drm_file *file,
79e53945
JB		 6858 uint32_t handle,
6859 uint32_t width, uint32_t height)
6860{
6861 struct drm_device *dev = crtc->dev;
6862 struct drm_i915_private *dev_priv = dev->dev_private;
6863 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
05394f39 6864 struct drm_i915_gem_object *obj;
cda4b7d3 6865 uint32_t addr;
3f8bc370 6866 int ret;
79e53945 6867
79e53945
JB		 6868 /* if we want to turn off the cursor ignore width and height */
6869 if (!handle) {
28c97730 6870 DRM_DEBUG_KMS("cursor off\n");
3f8bc370 6871 addr = 0;
05394f39 6872 obj = NULL;
5004417d 6873 mutex_lock(&dev->struct_mutex);
3f8bc370 6874 goto finish;
79e53945
JB		 6875 }
6876
6877 /* Currently we only support 64x64 cursors */
6878 if (width != 64 || height != 64) {
6879 DRM_ERROR("we currently only support 64x64 cursors\n");
6880 return -EINVAL;
6881 }
6882
05394f39 6883 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
c8725226 6884 if (&obj->base == NULL)
79e53945
JB		 6885 return -ENOENT;
6886
05394f39 6887 if (obj->base.size < width * height * 4) {
79e53945 6888 DRM_ERROR("buffer is to small\n");
34b8686e
DA		 6889 ret = -ENOMEM;
6890 goto fail;
79e53945
JB		 6891 }
6892
71acb5eb 6893 /* we only need to pin inside GTT if cursor is non-phy */
7f9872e0 6894 mutex_lock(&dev->struct_mutex);
b295d1b6 6895 if (!dev_priv->info->cursor_needs_physical) {
693db184
CW		 6896 unsigned alignment;
6897
d9e86c0e
CW		 6898 if (obj->tiling_mode) {
6899 DRM_ERROR("cursor cannot be tiled\n");
6900 ret = -EINVAL;
6901 goto fail_locked;
6902 }
6903
693db184
CW		 6904 /* Note that the w/a also requires 2 PTE of padding following
6905 * the bo. We currently fill all unused PTE with the shadow
6906 * page and so we should always have valid PTE following the
6907 * cursor preventing the VT-d warning.
6908 */
6909 alignment = 0;
6910 if (need_vtd_wa(dev))
6911 alignment = 64*1024;
6912
6913 ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
e7b526bb
CW		 6914 if (ret) {
6915 DRM_ERROR("failed to move cursor bo into the GTT\n");
2da3b9b9 6916 goto fail_locked;
e7b526bb
CW		 6917 }
6918
d9e86c0e
CW		 6919 ret = i915_gem_object_put_fence(obj);
6920 if (ret) {
2da3b9b9 6921 DRM_ERROR("failed to release fence for cursor");
d9e86c0e
CW		 6922 goto fail_unpin;
6923 }
6924
f343c5f6 6925 addr = i915_gem_obj_ggtt_offset(obj);
71acb5eb 6926 } else {
6eeefaf3 6927 int align = IS_I830(dev) ? 16 * 1024 : 256;
05394f39 6928 ret = i915_gem_attach_phys_object(dev, obj,
6eeefaf3
CW		 6929 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
6930 align);
71acb5eb
DA		 6931 if (ret) {
6932 DRM_ERROR("failed to attach phys object\n");
7f9872e0 6933 goto fail_locked;
71acb5eb 6934 }
05394f39 6935 addr = obj->phys_obj->handle->busaddr;
3f8bc370
KH		 6936 }
6937
a6c45cf0 6938 if (IS_GEN2(dev))
14b60391
JB		 6939 I915_WRITE(CURSIZE, (height << 12) | width);
6940
3f8bc370 6941 finish:
3f8bc370 6942 if (intel_crtc->cursor_bo) {
b295d1b6 6943 if (dev_priv->info->cursor_needs_physical) {
05394f39 6944 if (intel_crtc->cursor_bo != obj)
71acb5eb
DA		 6945 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
6946 } else
cc98b413 6947 i915_gem_object_unpin_from_display_plane(intel_crtc->cursor_bo);
05394f39 6948 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
3f8bc370 6949 }
80824003 6950
7f9872e0 6951 mutex_unlock(&dev->struct_mutex);
3f8bc370
KH		 6952
6953 intel_crtc->cursor_addr = addr;
05394f39 6954 intel_crtc->cursor_bo = obj;
cda4b7d3
CW		 6955 intel_crtc->cursor_width = width;
6956 intel_crtc->cursor_height = height;
6957
40ccc72b 6958 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
3f8bc370 6959
79e53945 6960 return 0;
e7b526bb 6961fail_unpin:
cc98b413 6962 i915_gem_object_unpin_from_display_plane(obj);
7f9872e0 6963fail_locked:
34b8686e 6964 mutex_unlock(&dev->struct_mutex);
bc9025bd 6965fail:
05394f39 6966 drm_gem_object_unreference_unlocked(&obj->base);
34b8686e 6967 return ret;
79e53945
JB		 6968}
6969
6970static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
6971{
79e53945 6972 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
79e53945 6973
cda4b7d3
CW		 6974 intel_crtc->cursor_x = x;
6975 intel_crtc->cursor_y = y;
652c393a 6976
40ccc72b 6977 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
79e53945
JB		 6978
6979 return 0;
6980}
6981
6982/** Sets the color ramps on behalf of RandR */
6983void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
6984 u16 blue, int regno)
6985{
6986 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6987
6988 intel_crtc->lut_r[regno] = red >> 8;
6989 intel_crtc->lut_g[regno] = green >> 8;
6990 intel_crtc->lut_b[regno] = blue >> 8;
6991}
6992
b8c00ac5
DA		 6993void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
6994 u16 *blue, int regno)
6995{
6996 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6997
6998 *red = intel_crtc->lut_r[regno] << 8;
6999 *green = intel_crtc->lut_g[regno] << 8;
7000 *blue = intel_crtc->lut_b[regno] << 8;
7001}
7002
79e53945 7003static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
7203425a 7004 u16 *blue, uint32_t start, uint32_t size)
79e53945 7005{
7203425a 7006 int end = (start + size > 256) ? 256 : start + size, i;
79e53945 7007 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
79e53945 7008
7203425a 7009 for (i = start; i < end; i++) {
79e53945
JB		 7010 intel_crtc->lut_r[i] = red[i] >> 8;
7011 intel_crtc->lut_g[i] = green[i] >> 8;
7012 intel_crtc->lut_b[i] = blue[i] >> 8;
7013 }
7014
7015 intel_crtc_load_lut(crtc);
7016}
7017
79e53945
JB		 7018/* VESA 640x480x72Hz mode to set on the pipe */
7019static struct drm_display_mode load_detect_mode = {
7020 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
7021 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
7022};
7023
d2dff872
CW		 7024static struct drm_framebuffer *
7025intel_framebuffer_create(struct drm_device *dev,
308e5bcb 7026 struct drm_mode_fb_cmd2 *mode_cmd,
d2dff872
CW		 7027 struct drm_i915_gem_object *obj)
7028{
7029 struct intel_framebuffer *intel_fb;
7030 int ret;
7031
7032 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
7033 if (!intel_fb) {
7034 drm_gem_object_unreference_unlocked(&obj->base);
7035 return ERR_PTR(-ENOMEM);
7036 }
7037
7038 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
7039 if (ret) {
7040 drm_gem_object_unreference_unlocked(&obj->base);
7041 kfree(intel_fb);
7042 return ERR_PTR(ret);
7043 }
7044
7045 return &intel_fb->base;
7046}
7047
7048static u32
7049intel_framebuffer_pitch_for_width(int width, int bpp)
7050{
7051 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
7052 return ALIGN(pitch, 64);
7053}
7054
7055static u32
7056intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
7057{
7058 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
7059 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
7060}
7061
7062static struct drm_framebuffer *
7063intel_framebuffer_create_for_mode(struct drm_device *dev,
7064 struct drm_display_mode *mode,
7065 int depth, int bpp)
7066{
7067 struct drm_i915_gem_object *obj;
0fed39bd 7068 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
d2dff872
CW		 7069
7070 obj = i915_gem_alloc_object(dev,
7071 intel_framebuffer_size_for_mode(mode, bpp));
7072 if (obj == NULL)
7073 return ERR_PTR(-ENOMEM);
7074
7075 mode_cmd.width = mode->hdisplay;
7076 mode_cmd.height = mode->vdisplay;
308e5bcb
JB		 7077 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
7078 bpp);
5ca0c34a 7079 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
d2dff872
CW		 7080
7081 return intel_framebuffer_create(dev, &mode_cmd, obj);
7082}
7083
7084static struct drm_framebuffer *
7085mode_fits_in_fbdev(struct drm_device *dev,
7086 struct drm_display_mode *mode)
7087{
7088 struct drm_i915_private *dev_priv = dev->dev_private;
7089 struct drm_i915_gem_object *obj;
7090 struct drm_framebuffer *fb;
7091
7092 if (dev_priv->fbdev == NULL)
7093 return NULL;
7094
7095 obj = dev_priv->fbdev->ifb.obj;
7096 if (obj == NULL)
7097 return NULL;
7098
7099 fb = &dev_priv->fbdev->ifb.base;
01f2c773
VS		 7100 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
7101 fb->bits_per_pixel))
d2dff872
CW		 7102 return NULL;
7103
01f2c773 7104 if (obj->base.size < mode->vdisplay * fb->pitches[0])
d2dff872
CW		 7105 return NULL;
7106
7107 return fb;
7108}
7109
d2434ab7 7110bool intel_get_load_detect_pipe(struct drm_connector *connector,
7173188d 7111 struct drm_display_mode *mode,
8261b191 7112 struct intel_load_detect_pipe *old)
79e53945
JB		 7113{
7114 struct intel_crtc *intel_crtc;
d2434ab7
DV		 7115 struct intel_encoder *intel_encoder =
7116 intel_attached_encoder(connector);
79e53945 7117 struct drm_crtc *possible_crtc;
4ef69c7a 7118 struct drm_encoder *encoder = &intel_encoder->base;
79e53945
JB		 7119 struct drm_crtc *crtc = NULL;
7120 struct drm_device *dev = encoder->dev;
94352cf9 7121 struct drm_framebuffer *fb;
79e53945
JB		 7122 int i = -1;
7123
d2dff872
CW		 7124 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7125 connector->base.id, drm_get_connector_name(connector),
7126 encoder->base.id, drm_get_encoder_name(encoder));
7127
79e53945
JB		 7128 /*
7129 * Algorithm gets a little messy:
7a5e4805 7130 *
79e53945
JB		 7131 * - if the connector already has an assigned crtc, use it (but make
7132 * sure it's on first)
7a5e4805 7133 *
79e53945
JB		 7134 * - try to find the first unused crtc that can drive this connector,
7135 * and use that if we find one
79e53945
JB		 7136 */
7137
7138 /* See if we already have a CRTC for this connector */
7139 if (encoder->crtc) {
7140 crtc = encoder->crtc;
8261b191 7141
7b24056b
DV		 7142 mutex_lock(&crtc->mutex);
7143
24218aac 7144 old->dpms_mode = connector->dpms;
8261b191
CW		 7145 old->load_detect_temp = false;
7146
7147 /* Make sure the crtc and connector are running */
24218aac
DV		 7148 if (connector->dpms != DRM_MODE_DPMS_ON)
7149 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
8261b191 7150
7173188d 7151 return true;
79e53945
JB		 7152 }
7153
7154 /* Find an unused one (if possible) */
7155 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
7156 i++;
7157 if (!(encoder->possible_crtcs & (1 << i)))
7158 continue;
7159 if (!possible_crtc->enabled) {
7160 crtc = possible_crtc;
7161 break;
7162 }
79e53945
JB		 7163 }
7164
7165 /*
7166 * If we didn't find an unused CRTC, don't use any.
7167 */
7168 if (!crtc) {
7173188d
CW		 7169 DRM_DEBUG_KMS("no pipe available for load-detect\n");
7170 return false;
79e53945
JB		 7171 }
7172
7b24056b 7173 mutex_lock(&crtc->mutex);
fc303101
DV		 7174 intel_encoder->new_crtc = to_intel_crtc(crtc);
7175 to_intel_connector(connector)->new_encoder = intel_encoder;
79e53945
JB		 7176
7177 intel_crtc = to_intel_crtc(crtc);
24218aac 7178 old->dpms_mode = connector->dpms;
8261b191 7179 old->load_detect_temp = true;
d2dff872 7180 old->release_fb = NULL;
79e53945 7181
6492711d
CW		 7182 if (!mode)
7183 mode = &load_detect_mode;
79e53945 7184
d2dff872
CW		 7185 /* We need a framebuffer large enough to accommodate all accesses
7186 * that the plane may generate whilst we perform load detection.
7187 * We can not rely on the fbcon either being present (we get called
7188 * during its initialisation to detect all boot displays, or it may
7189 * not even exist) or that it is large enough to satisfy the
7190 * requested mode.
7191 */
94352cf9
DV		 7192 fb = mode_fits_in_fbdev(dev, mode);
7193 if (fb == NULL) {
d2dff872 7194 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
94352cf9
DV		 7195 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
7196 old->release_fb = fb;
d2dff872
CW		 7197 } else
7198 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
94352cf9 7199 if (IS_ERR(fb)) {
d2dff872 7200 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
7b24056b 7201 mutex_unlock(&crtc->mutex);
0e8b3d3e 7202 return false;
79e53945 7203 }
79e53945 7204
c0c36b94 7205 if (intel_set_mode(crtc, mode, 0, 0, fb)) {
6492711d 7206 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
d2dff872
CW		 7207 if (old->release_fb)
7208 old->release_fb->funcs->destroy(old->release_fb);
7b24056b 7209 mutex_unlock(&crtc->mutex);
0e8b3d3e 7210 return false;
79e53945 7211 }
7173188d 7212
79e53945 7213 /* let the connector get through one full cycle before testing */
9d0498a2 7214 intel_wait_for_vblank(dev, intel_crtc->pipe);
7173188d 7215 return true;
79e53945
JB		 7216}
7217
d2434ab7 7218void intel_release_load_detect_pipe(struct drm_connector *connector,
8261b191 7219 struct intel_load_detect_pipe *old)
79e53945 7220{
d2434ab7
DV		 7221 struct intel_encoder *intel_encoder =
7222 intel_attached_encoder(connector);
4ef69c7a 7223 struct drm_encoder *encoder = &intel_encoder->base;
7b24056b 7224 struct drm_crtc *crtc = encoder->crtc;
79e53945 7225
d2dff872
CW		 7226 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7227 connector->base.id, drm_get_connector_name(connector),
7228 encoder->base.id, drm_get_encoder_name(encoder));
7229
8261b191 7230 if (old->load_detect_temp) {
fc303101
DV		 7231 to_intel_connector(connector)->new_encoder = NULL;
7232 intel_encoder->new_crtc = NULL;
7233 intel_set_mode(crtc, NULL, 0, 0, NULL);
d2dff872 7234
36206361
DV		 7235 if (old->release_fb) {
7236 drm_framebuffer_unregister_private(old->release_fb);
7237 drm_framebuffer_unreference(old->release_fb);
7238 }
d2dff872 7239
67c96400 7240 mutex_unlock(&crtc->mutex);
0622a53c 7241 return;
79e53945
JB		 7242 }
7243
c751ce4f 7244 /* Switch crtc and encoder back off if necessary */
24218aac
DV		 7245 if (old->dpms_mode != DRM_MODE_DPMS_ON)
7246 connector->funcs->dpms(connector, old->dpms_mode);
7b24056b
DV		 7247
7248 mutex_unlock(&crtc->mutex);
79e53945
JB		 7249}
7250
7251/* Returns the clock of the currently programmed mode of the given pipe. */
f1f644dc
JB		 7252static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
7253 struct intel_crtc_config *pipe_config)
79e53945 7254{
f1f644dc 7255 struct drm_device *dev = crtc->base.dev;
79e53945 7256 struct drm_i915_private *dev_priv = dev->dev_private;
f1f644dc 7257 int pipe = pipe_config->cpu_transcoder;
548f245b 7258 u32 dpll = I915_READ(DPLL(pipe));
79e53945
JB		 7259 u32 fp;
7260 intel_clock_t clock;
7261
7262 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
39adb7a5 7263 fp = I915_READ(FP0(pipe));
79e53945 7264 else
39adb7a5 7265 fp = I915_READ(FP1(pipe));
79e53945
JB		 7266
7267 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
f2b115e6
AJ		 7268 if (IS_PINEVIEW(dev)) {
7269 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
7270 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
2177832f
SL		 7271 } else {
7272 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
7273 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
7274 }
7275
a6c45cf0 7276 if (!IS_GEN2(dev)) {
f2b115e6
AJ		 7277 if (IS_PINEVIEW(dev))
7278 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
7279 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
2177832f
SL		 7280 else
7281 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
79e53945
JB		 7282 DPLL_FPA01_P1_POST_DIV_SHIFT);
7283
7284 switch (dpll & DPLL_MODE_MASK) {
7285 case DPLLB_MODE_DAC_SERIAL:
7286 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
7287 5 : 10;
7288 break;
7289 case DPLLB_MODE_LVDS:
7290 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
7291 7 : 14;
7292 break;
7293 default:
28c97730 7294 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
79e53945 7295 "mode\n", (int)(dpll & DPLL_MODE_MASK));
f1f644dc
JB		 7296 pipe_config->adjusted_mode.clock = 0;
7297 return;
79e53945
JB		 7298 }
7299
ac58c3f0
DV		 7300 if (IS_PINEVIEW(dev))
7301 pineview_clock(96000, &clock);
7302 else
7303 i9xx_clock(96000, &clock);
79e53945
JB		 7304 } else {
7305 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
7306
7307 if (is_lvds) {
7308 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
7309 DPLL_FPA01_P1_POST_DIV_SHIFT);
7310 clock.p2 = 14;
7311
7312 if ((dpll & PLL_REF_INPUT_MASK) ==
7313 PLLB_REF_INPUT_SPREADSPECTRUMIN) {
7314 /* XXX: might not be 66MHz */
ac58c3f0 7315 i9xx_clock(66000, &clock);
79e53945 7316 } else
ac58c3f0 7317 i9xx_clock(48000, &clock);
79e53945
JB		 7318 } else {
7319 if (dpll & PLL_P1_DIVIDE_BY_TWO)
7320 clock.p1 = 2;
7321 else {
7322 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
7323 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
7324 }
7325 if (dpll & PLL_P2_DIVIDE_BY_4)
7326 clock.p2 = 4;
7327 else
7328 clock.p2 = 2;
7329
ac58c3f0 7330 i9xx_clock(48000, &clock);
79e53945
JB		 7331 }
7332 }
7333
a2dc53e7 7334 pipe_config->adjusted_mode.clock = clock.dot;
f1f644dc
JB		 7335}
7336
7337static void ironlake_crtc_clock_get(struct intel_crtc *crtc,
7338 struct intel_crtc_config *pipe_config)
7339{
7340 struct drm_device *dev = crtc->base.dev;
7341 struct drm_i915_private *dev_priv = dev->dev_private;
7342 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
7343 int link_freq, repeat;
7344 u64 clock;
7345 u32 link_m, link_n;
7346
7347 repeat = pipe_config->pixel_multiplier;
7348
7349 /*
7350 * The calculation for the data clock is:
7351 * pixel_clock = ((m/n)*(link_clock * nr_lanes * repeat))/bpp
7352 * But we want to avoid losing precison if possible, so:
7353 * pixel_clock = ((m * link_clock * nr_lanes * repeat)/(n*bpp))
7354 *
7355 * and the link clock is simpler:
7356 * link_clock = (m * link_clock * repeat) / n
7357 */
7358
7359 /*
7360 * We need to get the FDI or DP link clock here to derive
7361 * the M/N dividers.
7362 *
7363 * For FDI, we read it from the BIOS or use a fixed 2.7GHz.
7364 * For DP, it's either 1.62GHz or 2.7GHz.
7365 * We do our calculations in 10*MHz since we don't need much precison.
79e53945 7366 */
f1f644dc
JB		 7367 if (pipe_config->has_pch_encoder)
7368 link_freq = intel_fdi_link_freq(dev) * 10000;
7369 else
7370 link_freq = pipe_config->port_clock;
7371
7372 link_m = I915_READ(PIPE_LINK_M1(cpu_transcoder));
7373 link_n = I915_READ(PIPE_LINK_N1(cpu_transcoder));
7374
7375 if (!link_m || !link_n)
7376 return;
79e53945 7377
f1f644dc
JB		 7378 clock = ((u64)link_m * (u64)link_freq * (u64)repeat);
7379 do_div(clock, link_n);
7380
7381 pipe_config->adjusted_mode.clock = clock;
79e53945
JB		 7382}
7383
7384/** Returns the currently programmed mode of the given pipe. */
7385struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
7386 struct drm_crtc *crtc)
7387{
548f245b 7388 struct drm_i915_private *dev_priv = dev->dev_private;
79e53945 7389 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 7390 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
79e53945 7391 struct drm_display_mode *mode;
f1f644dc 7392 struct intel_crtc_config pipe_config;
fe2b8f9d
PZ		 7393 int htot = I915_READ(HTOTAL(cpu_transcoder));
7394 int hsync = I915_READ(HSYNC(cpu_transcoder));
7395 int vtot = I915_READ(VTOTAL(cpu_transcoder));
7396 int vsync = I915_READ(VSYNC(cpu_transcoder));
79e53945
JB		 7397
7398 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
7399 if (!mode)
7400 return NULL;
7401
f1f644dc
JB		 7402 /*
7403 * Construct a pipe_config sufficient for getting the clock info
7404 * back out of crtc_clock_get.
7405 *
7406 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
7407 * to use a real value here instead.
7408 */
e143a21c 7409 pipe_config.cpu_transcoder = (enum transcoder) intel_crtc->pipe;
f1f644dc
JB		 7410 pipe_config.pixel_multiplier = 1;
7411 i9xx_crtc_clock_get(intel_crtc, &pipe_config);
7412
7413 mode->clock = pipe_config.adjusted_mode.clock;
79e53945
JB		 7414 mode->hdisplay = (htot & 0xffff) + 1;
7415 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
7416 mode->hsync_start = (hsync & 0xffff) + 1;
7417 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
7418 mode->vdisplay = (vtot & 0xffff) + 1;
7419 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
7420 mode->vsync_start = (vsync & 0xffff) + 1;
7421 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
7422
7423 drm_mode_set_name(mode);
79e53945
JB		 7424
7425 return mode;
7426}
7427
3dec0095 7428static void intel_increase_pllclock(struct drm_crtc *crtc)
652c393a
JB		 7429{
7430 struct drm_device *dev = crtc->dev;
7431 drm_i915_private_t *dev_priv = dev->dev_private;
7432 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7433 int pipe = intel_crtc->pipe;
dbdc6479
JB		 7434 int dpll_reg = DPLL(pipe);
7435 int dpll;
652c393a 7436
bad720ff 7437 if (HAS_PCH_SPLIT(dev))
652c393a
JB		 7438 return;
7439
7440 if (!dev_priv->lvds_downclock_avail)
7441 return;
7442
dbdc6479 7443 dpll = I915_READ(dpll_reg);
652c393a 7444 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
44d98a61 7445 DRM_DEBUG_DRIVER("upclocking LVDS\n");
652c393a 7446
8ac5a6d5 7447 assert_panel_unlocked(dev_priv, pipe);
652c393a
JB		 7448
7449 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
7450 I915_WRITE(dpll_reg, dpll);
9d0498a2 7451 intel_wait_for_vblank(dev, pipe);
dbdc6479 7452
652c393a
JB		 7453 dpll = I915_READ(dpll_reg);
7454 if (dpll & DISPLAY_RATE_SELECT_FPA1)
44d98a61 7455 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
652c393a 7456 }
652c393a
JB		 7457}
7458
7459static void intel_decrease_pllclock(struct drm_crtc *crtc)
7460{
7461 struct drm_device *dev = crtc->dev;
7462 drm_i915_private_t *dev_priv = dev->dev_private;
7463 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
652c393a 7464
bad720ff 7465 if (HAS_PCH_SPLIT(dev))
652c393a
JB		 7466 return;
7467
7468 if (!dev_priv->lvds_downclock_avail)
7469 return;
7470
7471 /*
7472 * Since this is called by a timer, we should never get here in
7473 * the manual case.
7474 */
7475 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
dc257cf1
DV		 7476 int pipe = intel_crtc->pipe;
7477 int dpll_reg = DPLL(pipe);
7478 int dpll;
f6e5b160 7479
44d98a61 7480 DRM_DEBUG_DRIVER("downclocking LVDS\n");
652c393a 7481
8ac5a6d5 7482 assert_panel_unlocked(dev_priv, pipe);
652c393a 7483
dc257cf1 7484 dpll = I915_READ(dpll_reg);
652c393a
JB		 7485 dpll |= DISPLAY_RATE_SELECT_FPA1;
7486 I915_WRITE(dpll_reg, dpll);
9d0498a2 7487 intel_wait_for_vblank(dev, pipe);
652c393a
JB		 7488 dpll = I915_READ(dpll_reg);
7489 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
44d98a61 7490 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
652c393a
JB		 7491 }
7492
7493}
7494
f047e395
CW		 7495void intel_mark_busy(struct drm_device *dev)
7496{
c67a470b
PZ		 7497 struct drm_i915_private *dev_priv = dev->dev_private;
7498
7499 hsw_package_c8_gpu_busy(dev_priv);
7500 i915_update_gfx_val(dev_priv);
f047e395
CW		 7501}
7502
7503void intel_mark_idle(struct drm_device *dev)
652c393a 7504{
c67a470b 7505 struct drm_i915_private *dev_priv = dev->dev_private;
652c393a 7506 struct drm_crtc *crtc;
652c393a 7507
c67a470b
PZ		 7508 hsw_package_c8_gpu_idle(dev_priv);
7509
652c393a
JB		 7510 if (!i915_powersave)
7511 return;
7512
652c393a 7513 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
652c393a
JB		 7514 if (!crtc->fb)
7515 continue;
7516
725a5b54 7517 intel_decrease_pllclock(crtc);
652c393a 7518 }
652c393a
JB		 7519}
7520
c65355bb
CW		 7521void intel_mark_fb_busy(struct drm_i915_gem_object *obj,
7522 struct intel_ring_buffer *ring)
652c393a 7523{
f047e395
CW		 7524 struct drm_device *dev = obj->base.dev;
7525 struct drm_crtc *crtc;
652c393a 7526
f047e395 7527 if (!i915_powersave)
acb87dfb
CW		 7528 return;
7529
652c393a
JB		 7530 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7531 if (!crtc->fb)
7532 continue;
7533
c65355bb
CW		 7534 if (to_intel_framebuffer(crtc->fb)->obj != obj)
7535 continue;
7536
7537 intel_increase_pllclock(crtc);
7538 if (ring && intel_fbc_enabled(dev))
7539 ring->fbc_dirty = true;
652c393a
JB		 7540 }
7541}
7542
79e53945
JB		 7543static void intel_crtc_destroy(struct drm_crtc *crtc)
7544{
7545 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
67e77c5a
DV		 7546 struct drm_device *dev = crtc->dev;
7547 struct intel_unpin_work *work;
7548 unsigned long flags;
7549
7550 spin_lock_irqsave(&dev->event_lock, flags);
7551 work = intel_crtc->unpin_work;
7552 intel_crtc->unpin_work = NULL;
7553 spin_unlock_irqrestore(&dev->event_lock, flags);
7554
7555 if (work) {
7556 cancel_work_sync(&work->work);
7557 kfree(work);
7558 }
79e53945 7559
40ccc72b
MK		 7560 intel_crtc_cursor_set(crtc, NULL, 0, 0, 0);
7561
79e53945 7562 drm_crtc_cleanup(crtc);
67e77c5a 7563
79e53945
JB		 7564 kfree(intel_crtc);
7565}
7566
6b95a207
KH		 7567static void intel_unpin_work_fn(struct work_struct *__work)
7568{
7569 struct intel_unpin_work *work =
7570 container_of(__work, struct intel_unpin_work, work);
b4a98e57 7571 struct drm_device *dev = work->crtc->dev;
6b95a207 7572
b4a98e57 7573 mutex_lock(&dev->struct_mutex);
1690e1eb 7574 intel_unpin_fb_obj(work->old_fb_obj);
05394f39
CW		 7575 drm_gem_object_unreference(&work->pending_flip_obj->base);
7576 drm_gem_object_unreference(&work->old_fb_obj->base);
d9e86c0e 7577
b4a98e57
CW		 7578 intel_update_fbc(dev);
7579 mutex_unlock(&dev->struct_mutex);
7580
7581 BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
7582 atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
7583
6b95a207
KH		 7584 kfree(work);
7585}
7586
1afe3e9d 7587static void do_intel_finish_page_flip(struct drm_device *dev,
49b14a5c 7588 struct drm_crtc *crtc)
6b95a207
KH		 7589{
7590 drm_i915_private_t *dev_priv = dev->dev_private;
6b95a207
KH		 7591 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7592 struct intel_unpin_work *work;
6b95a207
KH		 7593 unsigned long flags;
7594
7595 /* Ignore early vblank irqs */
7596 if (intel_crtc == NULL)
7597 return;
7598
7599 spin_lock_irqsave(&dev->event_lock, flags);
7600 work = intel_crtc->unpin_work;
e7d841ca
CW		 7601
7602 /* Ensure we don't miss a work->pending update ... */
7603 smp_rmb();
7604
7605 if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
6b95a207
KH		 7606 spin_unlock_irqrestore(&dev->event_lock, flags);
7607 return;
7608 }
7609
e7d841ca
CW		 7610 /* and that the unpin work is consistent wrt ->pending. */
7611 smp_rmb();
7612
6b95a207 7613 intel_crtc->unpin_work = NULL;
6b95a207 7614
45a066eb
RC		 7615 if (work->event)
7616 drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
6b95a207 7617
0af7e4df
MK		 7618 drm_vblank_put(dev, intel_crtc->pipe);
7619
6b95a207
KH		 7620 spin_unlock_irqrestore(&dev->event_lock, flags);
7621
2c10d571 7622 wake_up_all(&dev_priv->pending_flip_queue);
b4a98e57
CW		 7623
7624 queue_work(dev_priv->wq, &work->work);
e5510fac
JB		 7625
7626 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
6b95a207
KH		 7627}
7628
1afe3e9d
JB		 7629void intel_finish_page_flip(struct drm_device *dev, int pipe)
7630{
7631 drm_i915_private_t *dev_priv = dev->dev_private;
7632 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
7633
49b14a5c 7634 do_intel_finish_page_flip(dev, crtc);
1afe3e9d
JB		 7635}
7636
7637void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
7638{
7639 drm_i915_private_t *dev_priv = dev->dev_private;
7640 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
7641
49b14a5c 7642 do_intel_finish_page_flip(dev, crtc);
1afe3e9d
JB		 7643}
7644
6b95a207
KH		 7645void intel_prepare_page_flip(struct drm_device *dev, int plane)
7646{
7647 drm_i915_private_t *dev_priv = dev->dev_private;
7648 struct intel_crtc *intel_crtc =
7649 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
7650 unsigned long flags;
7651
e7d841ca
CW		 7652 /* NB: An MMIO update of the plane base pointer will also
7653 * generate a page-flip completion irq, i.e. every modeset
7654 * is also accompanied by a spurious intel_prepare_page_flip().
7655 */
6b95a207 7656 spin_lock_irqsave(&dev->event_lock, flags);
e7d841ca
CW		 7657 if (intel_crtc->unpin_work)
7658 atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
6b95a207
KH		 7659 spin_unlock_irqrestore(&dev->event_lock, flags);
7660}
7661
e7d841ca
CW		 7662inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
7663{
7664 /* Ensure that the work item is consistent when activating it ... */
7665 smp_wmb();
7666 atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
7667 /* and that it is marked active as soon as the irq could fire. */
7668 smp_wmb();
7669}
7670
8c9f3aaf
JB		 7671static int intel_gen2_queue_flip(struct drm_device *dev,
7672 struct drm_crtc *crtc,
7673 struct drm_framebuffer *fb,
ed8d1975
KP		 7674 struct drm_i915_gem_object *obj,
7675 uint32_t flags)
8c9f3aaf
JB		 7676{
7677 struct drm_i915_private *dev_priv = dev->dev_private;
7678 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8c9f3aaf 7679 u32 flip_mask;
6d90c952 7680 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7681 int ret;
7682
6d90c952 7683 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7684 if (ret)
83d4092b 7685 goto err;
8c9f3aaf 7686
6d90c952 7687 ret = intel_ring_begin(ring, 6);
8c9f3aaf 7688 if (ret)
83d4092b 7689 goto err_unpin;
8c9f3aaf
JB		 7690
7691 /* Can't queue multiple flips, so wait for the previous
7692 * one to finish before executing the next.
7693 */
7694 if (intel_crtc->plane)
7695 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7696 else
7697 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
6d90c952
DV		 7698 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7699 intel_ring_emit(ring, MI_NOOP);
7700 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7701 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7702 intel_ring_emit(ring, fb->pitches[0]);
f343c5f6 7703 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
6d90c952 7704 intel_ring_emit(ring, 0); /* aux display base address, unused */
e7d841ca
CW		 7705
7706 intel_mark_page_flip_active(intel_crtc);
6d90c952 7707 intel_ring_advance(ring);
83d4092b
CW		 7708 return 0;
7709
7710err_unpin:
7711 intel_unpin_fb_obj(obj);
7712err:
8c9f3aaf
JB		 7713 return ret;
7714}
7715
7716static int intel_gen3_queue_flip(struct drm_device *dev,
7717 struct drm_crtc *crtc,
7718 struct drm_framebuffer *fb,
ed8d1975
KP		 7719 struct drm_i915_gem_object *obj,
7720 uint32_t flags)
8c9f3aaf
JB		 7721{
7722 struct drm_i915_private *dev_priv = dev->dev_private;
7723 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8c9f3aaf 7724 u32 flip_mask;
6d90c952 7725 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7726 int ret;
7727
6d90c952 7728 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7729 if (ret)
83d4092b 7730 goto err;
8c9f3aaf 7731
6d90c952 7732 ret = intel_ring_begin(ring, 6);
8c9f3aaf 7733 if (ret)
83d4092b 7734 goto err_unpin;
8c9f3aaf
JB		 7735
7736 if (intel_crtc->plane)
7737 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7738 else
7739 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
6d90c952
DV		 7740 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7741 intel_ring_emit(ring, MI_NOOP);
7742 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
7743 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7744 intel_ring_emit(ring, fb->pitches[0]);
f343c5f6 7745 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
6d90c952
DV		 7746 intel_ring_emit(ring, MI_NOOP);
7747
e7d841ca 7748 intel_mark_page_flip_active(intel_crtc);
6d90c952 7749 intel_ring_advance(ring);
83d4092b
CW		 7750 return 0;
7751
7752err_unpin:
7753 intel_unpin_fb_obj(obj);
7754err:
8c9f3aaf
JB		 7755 return ret;
7756}
7757
7758static int intel_gen4_queue_flip(struct drm_device *dev,
7759 struct drm_crtc *crtc,
7760 struct drm_framebuffer *fb,
ed8d1975
KP		 7761 struct drm_i915_gem_object *obj,
7762 uint32_t flags)
8c9f3aaf
JB		 7763{
7764 struct drm_i915_private *dev_priv = dev->dev_private;
7765 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7766 uint32_t pf, pipesrc;
6d90c952 7767 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7768 int ret;
7769
6d90c952 7770 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7771 if (ret)
83d4092b 7772 goto err;
8c9f3aaf 7773
6d90c952 7774 ret = intel_ring_begin(ring, 4);
8c9f3aaf 7775 if (ret)
83d4092b 7776 goto err_unpin;
8c9f3aaf
JB		 7777
7778 /* i965+ uses the linear or tiled offsets from the
7779 * Display Registers (which do not change across a page-flip)
7780 * so we need only reprogram the base address.
7781 */
6d90c952
DV		 7782 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7783 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7784 intel_ring_emit(ring, fb->pitches[0]);
c2c75131 7785 intel_ring_emit(ring,
f343c5f6 7786 (i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset) |
c2c75131 7787 obj->tiling_mode);
8c9f3aaf
JB		 7788
7789 /* XXX Enabling the panel-fitter across page-flip is so far
7790 * untested on non-native modes, so ignore it for now.
7791 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
7792 */
7793 pf = 0;
7794 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
6d90c952 7795 intel_ring_emit(ring, pf | pipesrc);
e7d841ca
CW		 7796
7797 intel_mark_page_flip_active(intel_crtc);
6d90c952 7798 intel_ring_advance(ring);
83d4092b
CW		 7799 return 0;
7800
7801err_unpin:
7802 intel_unpin_fb_obj(obj);
7803err:
8c9f3aaf
JB		 7804 return ret;
7805}
7806
7807static int intel_gen6_queue_flip(struct drm_device *dev,
7808 struct drm_crtc *crtc,
7809 struct drm_framebuffer *fb,
ed8d1975
KP		 7810 struct drm_i915_gem_object *obj,
7811 uint32_t flags)
8c9f3aaf
JB		 7812{
7813 struct drm_i915_private *dev_priv = dev->dev_private;
7814 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6d90c952 7815 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7816 uint32_t pf, pipesrc;
7817 int ret;
7818
6d90c952 7819 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7820 if (ret)
83d4092b 7821 goto err;
8c9f3aaf 7822
6d90c952 7823 ret = intel_ring_begin(ring, 4);
8c9f3aaf 7824 if (ret)
83d4092b 7825 goto err_unpin;
8c9f3aaf 7826
6d90c952
DV		 7827 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7828 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7829 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
f343c5f6 7830 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8c9f3aaf 7831
dc257cf1
DV		 7832 /* Contrary to the suggestions in the documentation,
7833 * "Enable Panel Fitter" does not seem to be required when page
7834 * flipping with a non-native mode, and worse causes a normal
7835 * modeset to fail.
7836 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
7837 */
7838 pf = 0;
8c9f3aaf 7839 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
6d90c952 7840 intel_ring_emit(ring, pf | pipesrc);
e7d841ca
CW		 7841
7842 intel_mark_page_flip_active(intel_crtc);
6d90c952 7843 intel_ring_advance(ring);
83d4092b
CW		 7844 return 0;
7845
7846err_unpin:
7847 intel_unpin_fb_obj(obj);
7848err:
8c9f3aaf
JB		 7849 return ret;
7850}
7851
7c9017e5
JB		 7852static int intel_gen7_queue_flip(struct drm_device *dev,
7853 struct drm_crtc *crtc,
7854 struct drm_framebuffer *fb,
ed8d1975
KP		 7855 struct drm_i915_gem_object *obj,
7856 uint32_t flags)
7c9017e5
JB		 7857{
7858 struct drm_i915_private *dev_priv = dev->dev_private;
7859 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ffe74d75 7860 struct intel_ring_buffer *ring;
cb05d8de 7861 uint32_t plane_bit = 0;
ffe74d75
CW		 7862 int len, ret;
7863
7864 ring = obj->ring;
7865 if (ring == NULL || ring->id != RCS)
7866 ring = &dev_priv->ring[BCS];
7c9017e5
JB		 7867
7868 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7869 if (ret)
83d4092b 7870 goto err;
7c9017e5 7871
cb05d8de
DV		 7872 switch(intel_crtc->plane) {
7873 case PLANE_A:
7874 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
7875 break;
7876 case PLANE_B:
7877 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
7878 break;
7879 case PLANE_C:
7880 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
7881 break;
7882 default:
7883 WARN_ONCE(1, "unknown plane in flip command\n");
7884 ret = -ENODEV;
ab3951eb 7885 goto err_unpin;
cb05d8de
DV		 7886 }
7887
ffe74d75
CW		 7888 len = 4;
7889 if (ring->id == RCS)
7890 len += 6;
7891
7892 ret = intel_ring_begin(ring, len);
7c9017e5 7893 if (ret)
83d4092b 7894 goto err_unpin;
7c9017e5 7895
ffe74d75
CW		 7896 /* Unmask the flip-done completion message. Note that the bspec says that
7897 * we should do this for both the BCS and RCS, and that we must not unmask
7898 * more than one flip event at any time (or ensure that one flip message
7899 * can be sent by waiting for flip-done prior to queueing new flips).
7900 * Experimentation says that BCS works despite DERRMR masking all
7901 * flip-done completion events and that unmasking all planes at once
7902 * for the RCS also doesn't appear to drop events. Setting the DERRMR
7903 * to zero does lead to lockups within MI_DISPLAY_FLIP.
7904 */
7905 if (ring->id == RCS) {
7906 intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
7907 intel_ring_emit(ring, DERRMR);
7908 intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE |
7909 DERRMR_PIPEB_PRI_FLIP_DONE |
7910 DERRMR_PIPEC_PRI_FLIP_DONE));
7911 intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1));
7912 intel_ring_emit(ring, DERRMR);
7913 intel_ring_emit(ring, ring->scratch.gtt_offset + 256);
7914 }
7915
cb05d8de 7916 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
01f2c773 7917 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
f343c5f6 7918 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
7c9017e5 7919 intel_ring_emit(ring, (MI_NOOP));
e7d841ca
CW		 7920
7921 intel_mark_page_flip_active(intel_crtc);
7c9017e5 7922 intel_ring_advance(ring);
83d4092b
CW		 7923 return 0;
7924
7925err_unpin:
7926 intel_unpin_fb_obj(obj);
7927err:
7c9017e5
JB		 7928 return ret;
7929}
7930
8c9f3aaf
JB		 7931static int intel_default_queue_flip(struct drm_device *dev,
7932 struct drm_crtc *crtc,
7933 struct drm_framebuffer *fb,
ed8d1975
KP		 7934 struct drm_i915_gem_object *obj,
7935 uint32_t flags)
8c9f3aaf
JB		 7936{
7937 return -ENODEV;
7938}
7939
6b95a207
KH		 7940static int intel_crtc_page_flip(struct drm_crtc *crtc,
7941 struct drm_framebuffer *fb,
ed8d1975
KP		 7942 struct drm_pending_vblank_event *event,
7943 uint32_t page_flip_flags)
6b95a207
KH		 7944{
7945 struct drm_device *dev = crtc->dev;
7946 struct drm_i915_private *dev_priv = dev->dev_private;
4a35f83b
VS		 7947 struct drm_framebuffer *old_fb = crtc->fb;
7948 struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
6b95a207
KH		 7949 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7950 struct intel_unpin_work *work;
8c9f3aaf 7951 unsigned long flags;
52e68630 7952 int ret;
6b95a207 7953
e6a595d2
VS		 7954 /* Can't change pixel format via MI display flips. */
7955 if (fb->pixel_format != crtc->fb->pixel_format)
7956 return -EINVAL;
7957
7958 /*
7959 * TILEOFF/LINOFF registers can't be changed via MI display flips.
7960 * Note that pitch changes could also affect these register.
7961 */
7962 if (INTEL_INFO(dev)->gen > 3 &&
7963 (fb->offsets[0] != crtc->fb->offsets[0] ||
7964 fb->pitches[0] != crtc->fb->pitches[0]))
7965 return -EINVAL;
7966
6b95a207
KH		 7967 work = kzalloc(sizeof *work, GFP_KERNEL);
7968 if (work == NULL)
7969 return -ENOMEM;
7970
6b95a207 7971 work->event = event;
b4a98e57 7972 work->crtc = crtc;
4a35f83b 7973 work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
6b95a207
KH		 7974 INIT_WORK(&work->work, intel_unpin_work_fn);
7975
7317c75e
JB		 7976 ret = drm_vblank_get(dev, intel_crtc->pipe);
7977 if (ret)
7978 goto free_work;
7979
6b95a207
KH		 7980 /* We borrow the event spin lock for protecting unpin_work */
7981 spin_lock_irqsave(&dev->event_lock, flags);
7982 if (intel_crtc->unpin_work) {
7983 spin_unlock_irqrestore(&dev->event_lock, flags);
7984 kfree(work);
7317c75e 7985 drm_vblank_put(dev, intel_crtc->pipe);
468f0b44
CW		 7986
7987 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
6b95a207
KH		 7988 return -EBUSY;
7989 }
7990 intel_crtc->unpin_work = work;
7991 spin_unlock_irqrestore(&dev->event_lock, flags);
7992
b4a98e57
CW		 7993 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
7994 flush_workqueue(dev_priv->wq);
7995
79158103
CW		 7996 ret = i915_mutex_lock_interruptible(dev);
7997 if (ret)
7998 goto cleanup;
6b95a207 7999
75dfca80 8000 /* Reference the objects for the scheduled work. */
05394f39
CW		 8001 drm_gem_object_reference(&work->old_fb_obj->base);
8002 drm_gem_object_reference(&obj->base);
6b95a207
KH		 8003
8004 crtc->fb = fb;
96b099fd 8005
e1f99ce6 8006 work->pending_flip_obj = obj;
e1f99ce6 8007
4e5359cd
SF		 8008 work->enable_stall_check = true;
8009
b4a98e57 8010 atomic_inc(&intel_crtc->unpin_work_count);
10d83730 8011 intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
e1f99ce6 8012
ed8d1975 8013 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, page_flip_flags);
8c9f3aaf
JB		 8014 if (ret)
8015 goto cleanup_pending;
6b95a207 8016
7782de3b 8017 intel_disable_fbc(dev);
c65355bb 8018 intel_mark_fb_busy(obj, NULL);
6b95a207
KH		 8019 mutex_unlock(&dev->struct_mutex);
8020
e5510fac
JB		 8021 trace_i915_flip_request(intel_crtc->plane, obj);
8022
6b95a207 8023 return 0;
96b099fd 8024
8c9f3aaf 8025cleanup_pending:
b4a98e57 8026 atomic_dec(&intel_crtc->unpin_work_count);
4a35f83b 8027 crtc->fb = old_fb;
05394f39
CW		 8028 drm_gem_object_unreference(&work->old_fb_obj->base);
8029 drm_gem_object_unreference(&obj->base);
96b099fd
CW		 8030 mutex_unlock(&dev->struct_mutex);
8031
79158103 8032cleanup:
96b099fd
CW		 8033 spin_lock_irqsave(&dev->event_lock, flags);
8034 intel_crtc->unpin_work = NULL;
8035 spin_unlock_irqrestore(&dev->event_lock, flags);
8036
7317c75e
JB		 8037 drm_vblank_put(dev, intel_crtc->pipe);
8038free_work:
96b099fd
CW		 8039 kfree(work);
8040
8041 return ret;
6b95a207
KH		 8042}
8043
f6e5b160 8044static struct drm_crtc_helper_funcs intel_helper_funcs = {
f6e5b160
CW		 8045 .mode_set_base_atomic = intel_pipe_set_base_atomic,
8046 .load_lut = intel_crtc_load_lut,
f6e5b160
CW		 8047};
8048
50f56119
DV		 8049static bool intel_encoder_crtc_ok(struct drm_encoder *encoder,
8050 struct drm_crtc *crtc)
8051{
8052 struct drm_device *dev;
8053 struct drm_crtc *tmp;
8054 int crtc_mask = 1;
47f1c6c9 8055
50f56119 8056 WARN(!crtc, "checking null crtc?\n");
47f1c6c9 8057
50f56119 8058 dev = crtc->dev;
47f1c6c9 8059
50f56119
DV		 8060 list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
8061 if (tmp == crtc)
8062 break;
8063 crtc_mask <<= 1;
8064 }
47f1c6c9 8065
50f56119
DV		 8066 if (encoder->possible_crtcs & crtc_mask)
8067 return true;
8068 return false;
47f1c6c9 8069}
79e53945 8070
9a935856
DV		 8071/**
8072 * intel_modeset_update_staged_output_state
8073 *
8074 * Updates the staged output configuration state, e.g. after we've read out the
8075 * current hw state.
8076 */
8077static void intel_modeset_update_staged_output_state(struct drm_device *dev)
f6e5b160 8078{
9a935856
DV		 8079 struct intel_encoder *encoder;
8080 struct intel_connector *connector;
f6e5b160 8081
9a935856
DV		 8082 list_for_each_entry(connector, &dev->mode_config.connector_list,
8083 base.head) {
8084 connector->new_encoder =
8085 to_intel_encoder(connector->base.encoder);
8086 }
f6e5b160 8087
9a935856
DV		 8088 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8089 base.head) {
8090 encoder->new_crtc =
8091 to_intel_crtc(encoder->base.crtc);
8092 }
f6e5b160
CW		 8093}
8094
9a935856
DV		 8095/**
8096 * intel_modeset_commit_output_state
8097 *
8098 * This function copies the stage display pipe configuration to the real one.
8099 */
8100static void intel_modeset_commit_output_state(struct drm_device *dev)
8101{
8102 struct intel_encoder *encoder;
8103 struct intel_connector *connector;
f6e5b160 8104
9a935856
DV		 8105 list_for_each_entry(connector, &dev->mode_config.connector_list,
8106 base.head) {
8107 connector->base.encoder = &connector->new_encoder->base;
8108 }
f6e5b160 8109
9a935856
DV		 8110 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8111 base.head) {
8112 encoder->base.crtc = &encoder->new_crtc->base;
8113 }
8114}
8115
050f7aeb
DV		 8116static void
8117connected_sink_compute_bpp(struct intel_connector * connector,
8118 struct intel_crtc_config *pipe_config)
8119{
8120 int bpp = pipe_config->pipe_bpp;
8121
8122 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
8123 connector->base.base.id,
8124 drm_get_connector_name(&connector->base));
8125
8126 /* Don't use an invalid EDID bpc value */
8127 if (connector->base.display_info.bpc &&
8128 connector->base.display_info.bpc * 3 < bpp) {
8129 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
8130 bpp, connector->base.display_info.bpc*3);
8131 pipe_config->pipe_bpp = connector->base.display_info.bpc*3;
8132 }
8133
8134 /* Clamp bpp to 8 on screens without EDID 1.4 */
8135 if (connector->base.display_info.bpc == 0 && bpp > 24) {
8136 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
8137 bpp);
8138 pipe_config->pipe_bpp = 24;
8139 }
8140}
8141
4e53c2e0 8142static int
050f7aeb
DV		 8143compute_baseline_pipe_bpp(struct intel_crtc *crtc,
8144 struct drm_framebuffer *fb,
8145 struct intel_crtc_config *pipe_config)
4e53c2e0 8146{
050f7aeb
DV		 8147 struct drm_device *dev = crtc->base.dev;
8148 struct intel_connector *connector;
4e53c2e0
DV		 8149 int bpp;
8150
d42264b1
DV		 8151 switch (fb->pixel_format) {
8152 case DRM_FORMAT_C8:
4e53c2e0
DV		 8153 bpp = 8*3; /* since we go through a colormap */
8154 break;
d42264b1
DV		 8155 case DRM_FORMAT_XRGB1555:
8156 case DRM_FORMAT_ARGB1555:
8157 /* checked in intel_framebuffer_init already */
8158 if (WARN_ON(INTEL_INFO(dev)->gen > 3))
8159 return -EINVAL;
8160 case DRM_FORMAT_RGB565:
4e53c2e0
DV		 8161 bpp = 6*3; /* min is 18bpp */
8162 break;
d42264b1
DV		 8163 case DRM_FORMAT_XBGR8888:
8164 case DRM_FORMAT_ABGR8888:
8165 /* checked in intel_framebuffer_init already */
8166 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
8167 return -EINVAL;
8168 case DRM_FORMAT_XRGB8888:
8169 case DRM_FORMAT_ARGB8888:
4e53c2e0
DV		 8170 bpp = 8*3;
8171 break;
d42264b1
DV		 8172 case DRM_FORMAT_XRGB2101010:
8173 case DRM_FORMAT_ARGB2101010:
8174 case DRM_FORMAT_XBGR2101010:
8175 case DRM_FORMAT_ABGR2101010:
8176 /* checked in intel_framebuffer_init already */
8177 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
baba133a 8178 return -EINVAL;
4e53c2e0
DV		 8179 bpp = 10*3;
8180 break;
baba133a 8181 /* TODO: gen4+ supports 16 bpc floating point, too. */
4e53c2e0
DV		 8182 default:
8183 DRM_DEBUG_KMS("unsupported depth\n");
8184 return -EINVAL;
8185 }
8186
4e53c2e0
DV		 8187 pipe_config->pipe_bpp = bpp;
8188
8189 /* Clamp display bpp to EDID value */
8190 list_for_each_entry(connector, &dev->mode_config.connector_list,
050f7aeb 8191 base.head) {
1b829e05
DV		 8192 if (!connector->new_encoder ||
8193 connector->new_encoder->new_crtc != crtc)
4e53c2e0
DV		 8194 continue;
8195
050f7aeb 8196 connected_sink_compute_bpp(connector, pipe_config);
4e53c2e0
DV		 8197 }
8198
8199 return bpp;
8200}
8201
c0b03411
DV		 8202static void intel_dump_pipe_config(struct intel_crtc *crtc,
8203 struct intel_crtc_config *pipe_config,
8204 const char *context)
8205{
8206 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id,
8207 context, pipe_name(crtc->pipe));
8208
8209 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder));
8210 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
8211 pipe_config->pipe_bpp, pipe_config->dither);
8212 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
8213 pipe_config->has_pch_encoder,
8214 pipe_config->fdi_lanes,
8215 pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n,
8216 pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n,
8217 pipe_config->fdi_m_n.tu);
8218 DRM_DEBUG_KMS("requested mode:\n");
8219 drm_mode_debug_printmodeline(&pipe_config->requested_mode);
8220 DRM_DEBUG_KMS("adjusted mode:\n");
8221 drm_mode_debug_printmodeline(&pipe_config->adjusted_mode);
8222 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
8223 pipe_config->gmch_pfit.control,
8224 pipe_config->gmch_pfit.pgm_ratios,
8225 pipe_config->gmch_pfit.lvds_border_bits);
8226 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x\n",
8227 pipe_config->pch_pfit.pos,
8228 pipe_config->pch_pfit.size);
42db64ef 8229 DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled);
c0b03411
DV		 8230}
8231
accfc0c5
DV		 8232static bool check_encoder_cloning(struct drm_crtc *crtc)
8233{
8234 int num_encoders = 0;
8235 bool uncloneable_encoders = false;
8236 struct intel_encoder *encoder;
8237
8238 list_for_each_entry(encoder, &crtc->dev->mode_config.encoder_list,
8239 base.head) {
8240 if (&encoder->new_crtc->base != crtc)
8241 continue;
8242
8243 num_encoders++;
8244 if (!encoder->cloneable)
8245 uncloneable_encoders = true;
8246 }
8247
8248 return !(num_encoders > 1 && uncloneable_encoders);
8249}
8250
b8cecdf5
DV		 8251static struct intel_crtc_config *
8252intel_modeset_pipe_config(struct drm_crtc *crtc,
4e53c2e0 8253 struct drm_framebuffer *fb,
b8cecdf5 8254 struct drm_display_mode *mode)
ee7b9f93 8255{
7758a113 8256 struct drm_device *dev = crtc->dev;
7758a113 8257 struct intel_encoder *encoder;
b8cecdf5 8258 struct intel_crtc_config *pipe_config;
e29c22c0
DV		 8259 int plane_bpp, ret = -EINVAL;
8260 bool retry = true;
ee7b9f93 8261
accfc0c5
DV		 8262 if (!check_encoder_cloning(crtc)) {
8263 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
8264 return ERR_PTR(-EINVAL);
8265 }
8266
b8cecdf5
DV		 8267 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
8268 if (!pipe_config)
7758a113
DV		 8269 return ERR_PTR(-ENOMEM);
8270
b8cecdf5
DV		 8271 drm_mode_copy(&pipe_config->adjusted_mode, mode);
8272 drm_mode_copy(&pipe_config->requested_mode, mode);
e143a21c
DV		 8273 pipe_config->cpu_transcoder =
8274 (enum transcoder) to_intel_crtc(crtc)->pipe;
c0d43d62 8275 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
b8cecdf5 8276
2960bc9c
ID		 8277 /*
8278 * Sanitize sync polarity flags based on requested ones. If neither
8279 * positive or negative polarity is requested, treat this as meaning
8280 * negative polarity.
8281 */
8282 if (!(pipe_config->adjusted_mode.flags &
8283 (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC)))
8284 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC;
8285
8286 if (!(pipe_config->adjusted_mode.flags &
8287 (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC)))
8288 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC;
8289
050f7aeb
DV		 8290 /* Compute a starting value for pipe_config->pipe_bpp taking the source
8291 * plane pixel format and any sink constraints into account. Returns the
8292 * source plane bpp so that dithering can be selected on mismatches
8293 * after encoders and crtc also have had their say. */
8294 plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc),
8295 fb, pipe_config);
4e53c2e0
DV		 8296 if (plane_bpp < 0)
8297 goto fail;
8298
e29c22c0 8299encoder_retry:
ef1b460d 8300 /* Ensure the port clock defaults are reset when retrying. */
ff9a6750 8301 pipe_config->port_clock = 0;
ef1b460d 8302 pipe_config->pixel_multiplier = 1;
ff9a6750 8303
135c81b8
DV		 8304 /* Fill in default crtc timings, allow encoders to overwrite them. */
8305 drm_mode_set_crtcinfo(&pipe_config->adjusted_mode, 0);
8306
7758a113
DV		 8307 /* Pass our mode to the connectors and the CRTC to give them a chance to
8308 * adjust it according to limitations or connector properties, and also
8309 * a chance to reject the mode entirely.
47f1c6c9 8310 */
7758a113
DV		 8311 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8312 base.head) {
47f1c6c9 8313
7758a113
DV		 8314 if (&encoder->new_crtc->base != crtc)
8315 continue;
7ae89233 8316
efea6e8e
DV		 8317 if (!(encoder->compute_config(encoder, pipe_config))) {
8318 DRM_DEBUG_KMS("Encoder config failure\n");
7758a113
DV		 8319 goto fail;
8320 }
ee7b9f93 8321 }
47f1c6c9 8322
ff9a6750
DV		 8323 /* Set default port clock if not overwritten by the encoder. Needs to be
8324 * done afterwards in case the encoder adjusts the mode. */
8325 if (!pipe_config->port_clock)
8326 pipe_config->port_clock = pipe_config->adjusted_mode.clock;
8327
a43f6e0f 8328 ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config);
e29c22c0 8329 if (ret < 0) {
7758a113
DV		 8330 DRM_DEBUG_KMS("CRTC fixup failed\n");
8331 goto fail;
ee7b9f93 8332 }
e29c22c0
DV		 8333
8334 if (ret == RETRY) {
8335 if (WARN(!retry, "loop in pipe configuration computation\n")) {
8336 ret = -EINVAL;
8337 goto fail;
8338 }
8339
8340 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
8341 retry = false;
8342 goto encoder_retry;
8343 }
8344
4e53c2e0
DV		 8345 pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
8346 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
8347 plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
8348
b8cecdf5 8349 return pipe_config;
7758a113 8350fail:
b8cecdf5 8351 kfree(pipe_config);
e29c22c0 8352 return ERR_PTR(ret);
ee7b9f93 8353}
47f1c6c9 8354
e2e1ed41
DV		 8355/* Computes which crtcs are affected and sets the relevant bits in the mask. For
8356 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
8357static void
8358intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
8359 unsigned *prepare_pipes, unsigned *disable_pipes)
79e53945
JB		 8360{
8361 struct intel_crtc *intel_crtc;
e2e1ed41
DV		 8362 struct drm_device *dev = crtc->dev;
8363 struct intel_encoder *encoder;
8364 struct intel_connector *connector;
8365 struct drm_crtc *tmp_crtc;
79e53945 8366
e2e1ed41 8367 *disable_pipes = *modeset_pipes = *prepare_pipes = 0;
79e53945 8368
e2e1ed41
DV		 8369 /* Check which crtcs have changed outputs connected to them, these need
8370 * to be part of the prepare_pipes mask. We don't (yet) support global
8371 * modeset across multiple crtcs, so modeset_pipes will only have one
8372 * bit set at most. */
8373 list_for_each_entry(connector, &dev->mode_config.connector_list,
8374 base.head) {
8375 if (connector->base.encoder == &connector->new_encoder->base)
8376 continue;
79e53945 8377
e2e1ed41
DV		 8378 if (connector->base.encoder) {
8379 tmp_crtc = connector->base.encoder->crtc;
8380
8381 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
8382 }
8383
8384 if (connector->new_encoder)
8385 *prepare_pipes |=
8386 1 << connector->new_encoder->new_crtc->pipe;
79e53945
JB		 8387 }
8388
e2e1ed41
DV		 8389 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8390 base.head) {
8391 if (encoder->base.crtc == &encoder->new_crtc->base)
8392 continue;
8393
8394 if (encoder->base.crtc) {
8395 tmp_crtc = encoder->base.crtc;
8396
8397 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
8398 }
8399
8400 if (encoder->new_crtc)
8401 *prepare_pipes |= 1 << encoder->new_crtc->pipe;
80824003
JB		 8402 }
8403
e2e1ed41
DV		 8404 /* Check for any pipes that will be fully disabled ... */
8405 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
8406 base.head) {
8407 bool used = false;
22fd0fab 8408
e2e1ed41
DV		 8409 /* Don't try to disable disabled crtcs. */
8410 if (!intel_crtc->base.enabled)
8411 continue;
7e7d76c3 8412
e2e1ed41
DV		 8413 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8414 base.head) {
8415 if (encoder->new_crtc == intel_crtc)
8416 used = true;
8417 }
8418
8419 if (!used)
8420 *disable_pipes |= 1 << intel_crtc->pipe;
7e7d76c3
JB		 8421 }
8422
e2e1ed41
DV		 8423
8424 /* set_mode is also used to update properties on life display pipes. */
8425 intel_crtc = to_intel_crtc(crtc);
8426 if (crtc->enabled)
8427 *prepare_pipes |= 1 << intel_crtc->pipe;
8428
b6c5164d
DV		 8429 /*
8430 * For simplicity do a full modeset on any pipe where the output routing
8431 * changed. We could be more clever, but that would require us to be
8432 * more careful with calling the relevant encoder->mode_set functions.
8433 */
e2e1ed41
DV		 8434 if (*prepare_pipes)
8435 *modeset_pipes = *prepare_pipes;
8436
8437 /* ... and mask these out. */
8438 *modeset_pipes &= ~(*disable_pipes);
8439 *prepare_pipes &= ~(*disable_pipes);
b6c5164d
DV		 8440
8441 /*
8442 * HACK: We don't (yet) fully support global modesets. intel_set_config
8443 * obies this rule, but the modeset restore mode of
8444 * intel_modeset_setup_hw_state does not.
8445 */
8446 *modeset_pipes &= 1 << intel_crtc->pipe;
8447 *prepare_pipes &= 1 << intel_crtc->pipe;
e3641d3f
DV		 8448
8449 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
8450 *modeset_pipes, *prepare_pipes, *disable_pipes);
47f1c6c9 8451}
79e53945 8452
ea9d758d 8453static bool intel_crtc_in_use(struct drm_crtc *crtc)
f6e5b160 8454{
ea9d758d 8455 struct drm_encoder *encoder;
f6e5b160 8456 struct drm_device *dev = crtc->dev;
f6e5b160 8457
ea9d758d
DV		 8458 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
8459 if (encoder->crtc == crtc)
8460 return true;
8461
8462 return false;
8463}
8464
8465static void
8466intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
8467{
8468 struct intel_encoder *intel_encoder;
8469 struct intel_crtc *intel_crtc;
8470 struct drm_connector *connector;
8471
8472 list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
8473 base.head) {
8474 if (!intel_encoder->base.crtc)
8475 continue;
8476
8477 intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
8478
8479 if (prepare_pipes & (1 << intel_crtc->pipe))
8480 intel_encoder->connectors_active = false;
8481 }
8482
8483 intel_modeset_commit_output_state(dev);
8484
8485 /* Update computed state. */
8486 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
8487 base.head) {
8488 intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base);
8489 }
8490
8491 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
8492 if (!connector->encoder || !connector->encoder->crtc)
8493 continue;
8494
8495 intel_crtc = to_intel_crtc(connector->encoder->crtc);
8496
8497 if (prepare_pipes & (1 << intel_crtc->pipe)) {
68d34720
DV		 8498 struct drm_property *dpms_property =
8499 dev->mode_config.dpms_property;
8500
ea9d758d 8501 connector->dpms = DRM_MODE_DPMS_ON;
662595df 8502 drm_object_property_set_value(&connector->base,
68d34720
DV		 8503 dpms_property,
8504 DRM_MODE_DPMS_ON);
ea9d758d
DV		 8505
8506 intel_encoder = to_intel_encoder(connector->encoder);
8507 intel_encoder->connectors_active = true;
8508 }
8509 }
8510
8511}
8512
f1f644dc
JB		 8513static bool intel_fuzzy_clock_check(struct intel_crtc_config *cur,
8514 struct intel_crtc_config *new)
8515{
8516 int clock1, clock2, diff;
8517
8518 clock1 = cur->adjusted_mode.clock;
8519 clock2 = new->adjusted_mode.clock;
8520
8521 if (clock1 == clock2)
8522 return true;
8523
8524 if (!clock1 || !clock2)
8525 return false;
8526
8527 diff = abs(clock1 - clock2);
8528
8529 if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105)
8530 return true;
8531
8532 return false;
8533}
8534
25c5b266
DV		 8535#define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
8536 list_for_each_entry((intel_crtc), \
8537 &(dev)->mode_config.crtc_list, \
8538 base.head) \
0973f18f 8539 if (mask & (1 <<(intel_crtc)->pipe))
25c5b266 8540
0e8ffe1b 8541static bool
2fa2fe9a
DV		 8542intel_pipe_config_compare(struct drm_device *dev,
8543 struct intel_crtc_config *current_config,
0e8ffe1b
DV		 8544 struct intel_crtc_config *pipe_config)
8545{
66e985c0
DV		 8546#define PIPE_CONF_CHECK_X(name) \
8547 if (current_config->name != pipe_config->name) { \
8548 DRM_ERROR("mismatch in " #name " " \
8549 "(expected 0x%08x, found 0x%08x)\n", \
8550 current_config->name, \
8551 pipe_config->name); \
8552 return false; \
8553 }
8554
08a24034
DV		 8555#define PIPE_CONF_CHECK_I(name) \
8556 if (current_config->name != pipe_config->name) { \
8557 DRM_ERROR("mismatch in " #name " " \
8558 "(expected %i, found %i)\n", \
8559 current_config->name, \
8560 pipe_config->name); \
8561 return false; \
88adfff1
DV		 8562 }
8563
1bd1bd80
DV		 8564#define PIPE_CONF_CHECK_FLAGS(name, mask) \
8565 if ((current_config->name ^ pipe_config->name) & (mask)) { \
6f02488e 8566 DRM_ERROR("mismatch in " #name "(" #mask ") " \
1bd1bd80
DV		 8567 "(expected %i, found %i)\n", \
8568 current_config->name & (mask), \
8569 pipe_config->name & (mask)); \
8570 return false; \
8571 }
8572
bb760063
DV		 8573#define PIPE_CONF_QUIRK(quirk) \
8574 ((current_config->quirks | pipe_config->quirks) & (quirk))
8575
eccb140b
DV		 8576 PIPE_CONF_CHECK_I(cpu_transcoder);
8577
08a24034
DV		 8578 PIPE_CONF_CHECK_I(has_pch_encoder);
8579 PIPE_CONF_CHECK_I(fdi_lanes);
72419203
DV		 8580 PIPE_CONF_CHECK_I(fdi_m_n.gmch_m);
8581 PIPE_CONF_CHECK_I(fdi_m_n.gmch_n);
8582 PIPE_CONF_CHECK_I(fdi_m_n.link_m);
8583 PIPE_CONF_CHECK_I(fdi_m_n.link_n);
8584 PIPE_CONF_CHECK_I(fdi_m_n.tu);
08a24034 8585
1bd1bd80
DV		 8586 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay);
8587 PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal);
8588 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start);
8589 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end);
8590 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start);
8591 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end);
8592
8593 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay);
8594 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal);
8595 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start);
8596 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end);
8597 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start);
8598 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end);
8599
c93f54cf 8600 PIPE_CONF_CHECK_I(pixel_multiplier);
6c49f241 8601
1bd1bd80
DV		 8602 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8603 DRM_MODE_FLAG_INTERLACE);
8604
bb760063
DV		 8605 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) {
8606 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8607 DRM_MODE_FLAG_PHSYNC);
8608 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8609 DRM_MODE_FLAG_NHSYNC);
8610 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8611 DRM_MODE_FLAG_PVSYNC);
8612 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8613 DRM_MODE_FLAG_NVSYNC);
8614 }
045ac3b5 8615
1bd1bd80
DV		 8616 PIPE_CONF_CHECK_I(requested_mode.hdisplay);
8617 PIPE_CONF_CHECK_I(requested_mode.vdisplay);
8618
2fa2fe9a
DV		 8619 PIPE_CONF_CHECK_I(gmch_pfit.control);
8620 /* pfit ratios are autocomputed by the hw on gen4+ */
8621 if (INTEL_INFO(dev)->gen < 4)
8622 PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios);
8623 PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits);
8624 PIPE_CONF_CHECK_I(pch_pfit.pos);
8625 PIPE_CONF_CHECK_I(pch_pfit.size);
8626
42db64ef
PZ		 8627 PIPE_CONF_CHECK_I(ips_enabled);
8628
c0d43d62 8629 PIPE_CONF_CHECK_I(shared_dpll);
66e985c0 8630 PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
8bcc2795 8631 PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
66e985c0
DV		 8632 PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
8633 PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
c0d43d62 8634
66e985c0 8635#undef PIPE_CONF_CHECK_X
08a24034 8636#undef PIPE_CONF_CHECK_I
1bd1bd80 8637#undef PIPE_CONF_CHECK_FLAGS
bb760063 8638#undef PIPE_CONF_QUIRK
88adfff1 8639
f1f644dc
JB		 8640 if (!IS_HASWELL(dev)) {
8641 if (!intel_fuzzy_clock_check(current_config, pipe_config)) {
6f02488e 8642 DRM_ERROR("mismatch in clock (expected %d, found %d)\n",
f1f644dc
JB		 8643 current_config->adjusted_mode.clock,
8644 pipe_config->adjusted_mode.clock);
8645 return false;
8646 }
8647 }
8648
0e8ffe1b
DV		 8649 return true;
8650}
8651
91d1b4bd
DV		 8652static void
8653check_connector_state(struct drm_device *dev)
8af6cf88 8654{
8af6cf88
DV		 8655 struct intel_connector *connector;
8656
8657 list_for_each_entry(connector, &dev->mode_config.connector_list,
8658 base.head) {
8659 /* This also checks the encoder/connector hw state with the
8660 * ->get_hw_state callbacks. */
8661 intel_connector_check_state(connector);
8662
8663 WARN(&connector->new_encoder->base != connector->base.encoder,
8664 "connector's staged encoder doesn't match current encoder\n");
8665 }
91d1b4bd
DV		 8666}
8667
8668static void
8669check_encoder_state(struct drm_device *dev)
8670{
8671 struct intel_encoder *encoder;
8672 struct intel_connector *connector;
8af6cf88
DV		 8673
8674 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8675 base.head) {
8676 bool enabled = false;
8677 bool active = false;
8678 enum pipe pipe, tracked_pipe;
8679
8680 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
8681 encoder->base.base.id,
8682 drm_get_encoder_name(&encoder->base));
8683
8684 WARN(&encoder->new_crtc->base != encoder->base.crtc,
8685 "encoder's stage crtc doesn't match current crtc\n");
8686 WARN(encoder->connectors_active && !encoder->base.crtc,
8687 "encoder's active_connectors set, but no crtc\n");
8688
8689 list_for_each_entry(connector, &dev->mode_config.connector_list,
8690 base.head) {
8691 if (connector->base.encoder != &encoder->base)
8692 continue;
8693 enabled = true;
8694 if (connector->base.dpms != DRM_MODE_DPMS_OFF)
8695 active = true;
8696 }
8697 WARN(!!encoder->base.crtc != enabled,
8698 "encoder's enabled state mismatch "
8699 "(expected %i, found %i)\n",
8700 !!encoder->base.crtc, enabled);
8701 WARN(active && !encoder->base.crtc,
8702 "active encoder with no crtc\n");
8703
8704 WARN(encoder->connectors_active != active,
8705 "encoder's computed active state doesn't match tracked active state "
8706 "(expected %i, found %i)\n", active, encoder->connectors_active);
8707
8708 active = encoder->get_hw_state(encoder, &pipe);
8709 WARN(active != encoder->connectors_active,
8710 "encoder's hw state doesn't match sw tracking "
8711 "(expected %i, found %i)\n",
8712 encoder->connectors_active, active);
8713
8714 if (!encoder->base.crtc)
8715 continue;
8716
8717 tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
8718 WARN(active && pipe != tracked_pipe,
8719 "active encoder's pipe doesn't match"
8720 "(expected %i, found %i)\n",
8721 tracked_pipe, pipe);
8722
8723 }
91d1b4bd
DV		 8724}
8725
8726static void
8727check_crtc_state(struct drm_device *dev)
8728{
8729 drm_i915_private_t *dev_priv = dev->dev_private;
8730 struct intel_crtc *crtc;
8731 struct intel_encoder *encoder;
8732 struct intel_crtc_config pipe_config;
8af6cf88
DV		 8733
8734 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
8735 base.head) {
8736 bool enabled = false;
8737 bool active = false;
8738
045ac3b5
JB		 8739 memset(&pipe_config, 0, sizeof(pipe_config));
8740
8af6cf88
DV		 8741 DRM_DEBUG_KMS("[CRTC:%d]\n",
8742 crtc->base.base.id);
8743
8744 WARN(crtc->active && !crtc->base.enabled,
8745 "active crtc, but not enabled in sw tracking\n");
8746
8747 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8748 base.head) {
8749 if (encoder->base.crtc != &crtc->base)
8750 continue;
8751 enabled = true;
8752 if (encoder->connectors_active)
8753 active = true;
8754 }
6c49f241 8755
8af6cf88
DV		 8756 WARN(active != crtc->active,
8757 "crtc's computed active state doesn't match tracked active state "
8758 "(expected %i, found %i)\n", active, crtc->active);
8759 WARN(enabled != crtc->base.enabled,
8760 "crtc's computed enabled state doesn't match tracked enabled state "
8761 "(expected %i, found %i)\n", enabled, crtc->base.enabled);
8762
0e8ffe1b
DV		 8763 active = dev_priv->display.get_pipe_config(crtc,
8764 &pipe_config);
d62cf62a
DV		 8765
8766 /* hw state is inconsistent with the pipe A quirk */
8767 if (crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
8768 active = crtc->active;
8769
6c49f241
DV		 8770 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8771 base.head) {
3eaba51c 8772 enum pipe pipe;
6c49f241
DV		 8773 if (encoder->base.crtc != &crtc->base)
8774 continue;
3eaba51c
VS		 8775 if (encoder->get_config &&
8776 encoder->get_hw_state(encoder, &pipe))
6c49f241
DV		 8777 encoder->get_config(encoder, &pipe_config);
8778 }
8779
510d5f2f
JB		 8780 if (dev_priv->display.get_clock)
8781 dev_priv->display.get_clock(crtc, &pipe_config);
8782
0e8ffe1b
DV		 8783 WARN(crtc->active != active,
8784 "crtc active state doesn't match with hw state "
8785 "(expected %i, found %i)\n", crtc->active, active);
8786
c0b03411
DV		 8787 if (active &&
8788 !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) {
8789 WARN(1, "pipe state doesn't match!\n");
8790 intel_dump_pipe_config(crtc, &pipe_config,
8791 "[hw state]");
8792 intel_dump_pipe_config(crtc, &crtc->config,
8793 "[sw state]");
8794 }
8af6cf88
DV		 8795 }
8796}
8797
91d1b4bd
DV		 8798static void
8799check_shared_dpll_state(struct drm_device *dev)
8800{
8801 drm_i915_private_t *dev_priv = dev->dev_private;
8802 struct intel_crtc *crtc;
8803 struct intel_dpll_hw_state dpll_hw_state;
8804 int i;
5358901f
DV		 8805
8806 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
8807 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
8808 int enabled_crtcs = 0, active_crtcs = 0;
8809 bool active;
8810
8811 memset(&dpll_hw_state, 0, sizeof(dpll_hw_state));
8812
8813 DRM_DEBUG_KMS("%s\n", pll->name);
8814
8815 active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state);
8816
8817 WARN(pll->active > pll->refcount,
8818 "more active pll users than references: %i vs %i\n",
8819 pll->active, pll->refcount);
8820 WARN(pll->active && !pll->on,
8821 "pll in active use but not on in sw tracking\n");
35c95375
DV		 8822 WARN(pll->on && !pll->active,
8823 "pll in on but not on in use in sw tracking\n");
5358901f
DV		 8824 WARN(pll->on != active,
8825 "pll on state mismatch (expected %i, found %i)\n",
8826 pll->on, active);
8827
8828 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
8829 base.head) {
8830 if (crtc->base.enabled && intel_crtc_to_shared_dpll(crtc) == pll)
8831 enabled_crtcs++;
8832 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
8833 active_crtcs++;
8834 }
8835 WARN(pll->active != active_crtcs,
8836 "pll active crtcs mismatch (expected %i, found %i)\n",
8837 pll->active, active_crtcs);
8838 WARN(pll->refcount != enabled_crtcs,
8839 "pll enabled crtcs mismatch (expected %i, found %i)\n",
8840 pll->refcount, enabled_crtcs);
66e985c0
DV		 8841
8842 WARN(pll->on && memcmp(&pll->hw_state, &dpll_hw_state,
8843 sizeof(dpll_hw_state)),
8844 "pll hw state mismatch\n");
5358901f 8845 }
8af6cf88
DV		 8846}
8847
91d1b4bd
DV		 8848void
8849intel_modeset_check_state(struct drm_device *dev)
8850{
8851 check_connector_state(dev);
8852 check_encoder_state(dev);
8853 check_crtc_state(dev);
8854 check_shared_dpll_state(dev);
8855}
8856
f30da187
DV		 8857static int __intel_set_mode(struct drm_crtc *crtc,
8858 struct drm_display_mode *mode,
8859 int x, int y, struct drm_framebuffer *fb)
a6778b3c
DV		 8860{
8861 struct drm_device *dev = crtc->dev;
dbf2b54e 8862 drm_i915_private_t *dev_priv = dev->dev_private;
b8cecdf5
DV		 8863 struct drm_display_mode *saved_mode, *saved_hwmode;
8864 struct intel_crtc_config *pipe_config = NULL;
25c5b266
DV		 8865 struct intel_crtc *intel_crtc;
8866 unsigned disable_pipes, prepare_pipes, modeset_pipes;
c0c36b94 8867 int ret = 0;
a6778b3c 8868
3ac18232 8869 saved_mode = kmalloc(2 * sizeof(*saved_mode), GFP_KERNEL);
c0c36b94
CW		 8870 if (!saved_mode)
8871 return -ENOMEM;
3ac18232 8872 saved_hwmode = saved_mode + 1;
a6778b3c 8873
e2e1ed41 8874 intel_modeset_affected_pipes(crtc, &modeset_pipes,
25c5b266
DV		 8875 &prepare_pipes, &disable_pipes);
8876
3ac18232
TG		 8877 *saved_hwmode = crtc->hwmode;
8878 *saved_mode = crtc->mode;
a6778b3c 8879
25c5b266
DV		 8880 /* Hack: Because we don't (yet) support global modeset on multiple
8881 * crtcs, we don't keep track of the new mode for more than one crtc.
8882 * Hence simply check whether any bit is set in modeset_pipes in all the
8883 * pieces of code that are not yet converted to deal with mutliple crtcs
8884 * changing their mode at the same time. */
25c5b266 8885 if (modeset_pipes) {
4e53c2e0 8886 pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
b8cecdf5
DV		 8887 if (IS_ERR(pipe_config)) {
8888 ret = PTR_ERR(pipe_config);
8889 pipe_config = NULL;
8890
3ac18232 8891 goto out;
25c5b266 8892 }
c0b03411
DV		 8893 intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config,
8894 "[modeset]");
25c5b266 8895 }
a6778b3c 8896
460da916
DV		 8897 for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
8898 intel_crtc_disable(&intel_crtc->base);
8899
ea9d758d
DV		 8900 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
8901 if (intel_crtc->base.enabled)
8902 dev_priv->display.crtc_disable(&intel_crtc->base);
8903 }
a6778b3c 8904
6c4c86f5
DV		 8905 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
8906 * to set it here already despite that we pass it down the callchain.
f6e5b160 8907 */
b8cecdf5 8908 if (modeset_pipes) {
25c5b266 8909 crtc->mode = *mode;
b8cecdf5
DV		 8910 /* mode_set/enable/disable functions rely on a correct pipe
8911 * config. */
8912 to_intel_crtc(crtc)->config = *pipe_config;
8913 }
7758a113 8914
ea9d758d
DV		 8915 /* Only after disabling all output pipelines that will be changed can we
8916 * update the the output configuration. */
8917 intel_modeset_update_state(dev, prepare_pipes);
f6e5b160 8918
47fab737
DV		 8919 if (dev_priv->display.modeset_global_resources)
8920 dev_priv->display.modeset_global_resources(dev);
8921
a6778b3c
DV		 8922 /* Set up the DPLL and any encoders state that needs to adjust or depend
8923 * on the DPLL.
f6e5b160 8924 */
25c5b266 8925 for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
c0c36b94 8926 ret = intel_crtc_mode_set(&intel_crtc->base,
c0c36b94
CW		 8927 x, y, fb);
8928 if (ret)
8929 goto done;
a6778b3c
DV		 8930 }
8931
8932 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
25c5b266
DV		 8933 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
8934 dev_priv->display.crtc_enable(&intel_crtc->base);
a6778b3c 8935
25c5b266
DV		 8936 if (modeset_pipes) {
8937 /* Store real post-adjustment hardware mode. */
b8cecdf5 8938 crtc->hwmode = pipe_config->adjusted_mode;
a6778b3c 8939
25c5b266
DV		 8940 /* Calculate and store various constants which
8941 * are later needed by vblank and swap-completion
8942 * timestamping. They are derived from true hwmode.
8943 */
8944 drm_calc_timestamping_constants(crtc);
8945 }
a6778b3c
DV		 8946
8947 /* FIXME: add subpixel order */
8948done:
c0c36b94 8949 if (ret && crtc->enabled) {
3ac18232
TG		 8950 crtc->hwmode = *saved_hwmode;
8951 crtc->mode = *saved_mode;
a6778b3c
DV		 8952 }
8953
3ac18232 8954out:
b8cecdf5 8955 kfree(pipe_config);
3ac18232 8956 kfree(saved_mode);
a6778b3c 8957 return ret;
f6e5b160
CW		 8958}
8959
e7457a9a
DL		 8960static int intel_set_mode(struct drm_crtc *crtc,
8961 struct drm_display_mode *mode,
8962 int x, int y, struct drm_framebuffer *fb)
f30da187
DV		 8963{
8964 int ret;
8965
8966 ret = __intel_set_mode(crtc, mode, x, y, fb);
8967
8968 if (ret == 0)
8969 intel_modeset_check_state(crtc->dev);
8970
8971 return ret;
8972}
8973
c0c36b94
CW		 8974void intel_crtc_restore_mode(struct drm_crtc *crtc)
8975{
8976 intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb);
8977}
8978
25c5b266
DV		 8979#undef for_each_intel_crtc_masked
8980
d9e55608
DV		 8981static void intel_set_config_free(struct intel_set_config *config)
8982{
8983 if (!config)
8984 return;
8985
1aa4b628
DV		 8986 kfree(config->save_connector_encoders);
8987 kfree(config->save_encoder_crtcs);
d9e55608
DV		 8988 kfree(config);
8989}
8990
85f9eb71
DV		 8991static int intel_set_config_save_state(struct drm_device *dev,
8992 struct intel_set_config *config)
8993{
85f9eb71
DV		 8994 struct drm_encoder *encoder;
8995 struct drm_connector *connector;
8996 int count;
8997
1aa4b628
DV		 8998 config->save_encoder_crtcs =
8999 kcalloc(dev->mode_config.num_encoder,
9000 sizeof(struct drm_crtc *), GFP_KERNEL);
9001 if (!config->save_encoder_crtcs)
85f9eb71
DV		 9002 return -ENOMEM;
9003
1aa4b628
DV		 9004 config->save_connector_encoders =
9005 kcalloc(dev->mode_config.num_connector,
9006 sizeof(struct drm_encoder *), GFP_KERNEL);
9007 if (!config->save_connector_encoders)
85f9eb71
DV		 9008 return -ENOMEM;
9009
9010 /* Copy data. Note that driver private data is not affected.
9011 * Should anything bad happen only the expected state is
9012 * restored, not the drivers personal bookkeeping.
9013 */
85f9eb71
DV		 9014 count = 0;
9015 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1aa4b628 9016 config->save_encoder_crtcs[count++] = encoder->crtc;
85f9eb71
DV		 9017 }
9018
9019 count = 0;
9020 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1aa4b628 9021 config->save_connector_encoders[count++] = connector->encoder;
85f9eb71
DV		 9022 }
9023
9024 return 0;
9025}
9026
9027static void intel_set_config_restore_state(struct drm_device *dev,
9028 struct intel_set_config *config)
9029{
9a935856
DV		 9030 struct intel_encoder *encoder;
9031 struct intel_connector *connector;
85f9eb71
DV		 9032 int count;
9033
85f9eb71 9034 count = 0;
9a935856
DV		 9035 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
9036 encoder->new_crtc =
9037 to_intel_crtc(config->save_encoder_crtcs[count++]);
85f9eb71
DV		 9038 }
9039
9040 count = 0;
9a935856
DV		 9041 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
9042 connector->new_encoder =
9043 to_intel_encoder(config->save_connector_encoders[count++]);
85f9eb71
DV		 9044 }
9045}
9046
e3de42b6 9047static bool
2e57f47d 9048is_crtc_connector_off(struct drm_mode_set *set)
e3de42b6
ID		 9049{
9050 int i;
9051
2e57f47d
CW		 9052 if (set->num_connectors == 0)
9053 return false;
9054
9055 if (WARN_ON(set->connectors == NULL))
9056 return false;
9057
9058 for (i = 0; i < set->num_connectors; i++)
9059 if (set->connectors[i]->encoder &&
9060 set->connectors[i]->encoder->crtc == set->crtc &&
9061 set->connectors[i]->dpms != DRM_MODE_DPMS_ON)
e3de42b6
ID		 9062 return true;
9063
9064 return false;
9065}
9066
5e2b584e
DV		 9067static void
9068intel_set_config_compute_mode_changes(struct drm_mode_set *set,
9069 struct intel_set_config *config)
9070{
9071
9072 /* We should be able to check here if the fb has the same properties
9073 * and then just flip_or_move it */
2e57f47d
CW		 9074 if (is_crtc_connector_off(set)) {
9075 config->mode_changed = true;
e3de42b6 9076 } else if (set->crtc->fb != set->fb) {
5e2b584e
DV		 9077 /* If we have no fb then treat it as a full mode set */
9078 if (set->crtc->fb == NULL) {
319d9827
JB		 9079 struct intel_crtc *intel_crtc =
9080 to_intel_crtc(set->crtc);
9081
9082 if (intel_crtc->active && i915_fastboot) {
9083 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
9084 config->fb_changed = true;
9085 } else {
9086 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
9087 config->mode_changed = true;
9088 }
5e2b584e
DV		 9089 } else if (set->fb == NULL) {
9090 config->mode_changed = true;
72f4901e
DV		 9091 } else if (set->fb->pixel_format !=
9092 set->crtc->fb->pixel_format) {
5e2b584e 9093 config->mode_changed = true;
e3de42b6 9094 } else {
5e2b584e 9095 config->fb_changed = true;
e3de42b6 9096 }
5e2b584e
DV		 9097 }
9098
835c5873 9099 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
5e2b584e
DV		 9100 config->fb_changed = true;
9101
9102 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
9103 DRM_DEBUG_KMS("modes are different, full mode set\n");
9104 drm_mode_debug_printmodeline(&set->crtc->mode);
9105 drm_mode_debug_printmodeline(set->mode);
9106 config->mode_changed = true;
9107 }
a1d95703
CW		 9108
9109 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
9110 set->crtc->base.id, config->mode_changed, config->fb_changed);
5e2b584e
DV		 9111}
9112
2e431051 9113static int
9a935856
DV		 9114intel_modeset_stage_output_state(struct drm_device *dev,
9115 struct drm_mode_set *set,
9116 struct intel_set_config *config)
50f56119 9117{
85f9eb71 9118 struct drm_crtc *new_crtc;
9a935856
DV		 9119 struct intel_connector *connector;
9120 struct intel_encoder *encoder;
f3f08572 9121 int ro;
50f56119 9122
9abdda74 9123 /* The upper layers ensure that we either disable a crtc or have a list
9a935856
DV		 9124 * of connectors. For paranoia, double-check this. */
9125 WARN_ON(!set->fb && (set->num_connectors != 0));
9126 WARN_ON(set->fb && (set->num_connectors == 0));
9127
9a935856
DV		 9128 list_for_each_entry(connector, &dev->mode_config.connector_list,
9129 base.head) {
9130 /* Otherwise traverse passed in connector list and get encoders
9131 * for them. */
50f56119 9132 for (ro = 0; ro < set->num_connectors; ro++) {
9a935856
DV		 9133 if (set->connectors[ro] == &connector->base) {
9134 connector->new_encoder = connector->encoder;
50f56119
DV		 9135 break;
9136 }
9137 }
9138
9a935856
DV		 9139 /* If we disable the crtc, disable all its connectors. Also, if
9140 * the connector is on the changing crtc but not on the new
9141 * connector list, disable it. */
9142 if ((!set->fb || ro == set->num_connectors) &&
9143 connector->base.encoder &&
9144 connector->base.encoder->crtc == set->crtc) {
9145 connector->new_encoder = NULL;
9146
9147 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
9148 connector->base.base.id,
9149 drm_get_connector_name(&connector->base));
9150 }
9151
9152
9153 if (&connector->new_encoder->base != connector->base.encoder) {
50f56119 9154 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
5e2b584e 9155 config->mode_changed = true;
50f56119
DV		 9156 }
9157 }
9a935856 9158 /* connector->new_encoder is now updated for all connectors. */
50f56119 9159
9a935856 9160 /* Update crtc of enabled connectors. */
9a935856
DV		 9161 list_for_each_entry(connector, &dev->mode_config.connector_list,
9162 base.head) {
9163 if (!connector->new_encoder)
50f56119
DV		 9164 continue;
9165
9a935856 9166 new_crtc = connector->new_encoder->base.crtc;
50f56119
DV		 9167
9168 for (ro = 0; ro < set->num_connectors; ro++) {
9a935856 9169 if (set->connectors[ro] == &connector->base)
50f56119
DV		 9170 new_crtc = set->crtc;
9171 }
9172
9173 /* Make sure the new CRTC will work with the encoder */
9a935856
DV		 9174 if (!intel_encoder_crtc_ok(&connector->new_encoder->base,
9175 new_crtc)) {
5e2b584e 9176 return -EINVAL;
50f56119 9177 }
9a935856
DV		 9178 connector->encoder->new_crtc = to_intel_crtc(new_crtc);
9179
9180 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
9181 connector->base.base.id,
9182 drm_get_connector_name(&connector->base),
9183 new_crtc->base.id);
9184 }
9185
9186 /* Check for any encoders that needs to be disabled. */
9187 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9188 base.head) {
9189 list_for_each_entry(connector,
9190 &dev->mode_config.connector_list,
9191 base.head) {
9192 if (connector->new_encoder == encoder) {
9193 WARN_ON(!connector->new_encoder->new_crtc);
9194
9195 goto next_encoder;
9196 }
9197 }
9198 encoder->new_crtc = NULL;
9199next_encoder:
9200 /* Only now check for crtc changes so we don't miss encoders
9201 * that will be disabled. */
9202 if (&encoder->new_crtc->base != encoder->base.crtc) {
50f56119 9203 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
5e2b584e 9204 config->mode_changed = true;
50f56119
DV		 9205 }
9206 }
9a935856 9207 /* Now we've also updated encoder->new_crtc for all encoders. */
50f56119 9208
2e431051
DV		 9209 return 0;
9210}
9211
9212static int intel_crtc_set_config(struct drm_mode_set *set)
9213{
9214 struct drm_device *dev;
2e431051
DV		 9215 struct drm_mode_set save_set;
9216 struct intel_set_config *config;
9217 int ret;
2e431051 9218
8d3e375e
DV		 9219 BUG_ON(!set);
9220 BUG_ON(!set->crtc);
9221 BUG_ON(!set->crtc->helper_private);
2e431051 9222
7e53f3a4
DV		 9223 /* Enforce sane interface api - has been abused by the fb helper. */
9224 BUG_ON(!set->mode && set->fb);
9225 BUG_ON(set->fb && set->num_connectors == 0);
431e50f7 9226
2e431051
DV		 9227 if (set->fb) {
9228 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
9229 set->crtc->base.id, set->fb->base.id,
9230 (int)set->num_connectors, set->x, set->y);
9231 } else {
9232 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
2e431051
DV		 9233 }
9234
9235 dev = set->crtc->dev;
9236
9237 ret = -ENOMEM;
9238 config = kzalloc(sizeof(*config), GFP_KERNEL);
9239 if (!config)
9240 goto out_config;
9241
9242 ret = intel_set_config_save_state(dev, config);
9243 if (ret)
9244 goto out_config;
9245
9246 save_set.crtc = set->crtc;
9247 save_set.mode = &set->crtc->mode;
9248 save_set.x = set->crtc->x;
9249 save_set.y = set->crtc->y;
9250 save_set.fb = set->crtc->fb;
9251
9252 /* Compute whether we need a full modeset, only an fb base update or no
9253 * change at all. In the future we might also check whether only the
9254 * mode changed, e.g. for LVDS where we only change the panel fitter in
9255 * such cases. */
9256 intel_set_config_compute_mode_changes(set, config);
9257
9a935856 9258 ret = intel_modeset_stage_output_state(dev, set, config);
2e431051
DV		 9259 if (ret)
9260 goto fail;
9261
5e2b584e 9262 if (config->mode_changed) {
c0c36b94
CW		 9263 ret = intel_set_mode(set->crtc, set->mode,
9264 set->x, set->y, set->fb);
5e2b584e 9265 } else if (config->fb_changed) {
4878cae2
VS		 9266 intel_crtc_wait_for_pending_flips(set->crtc);
9267
4f660f49 9268 ret = intel_pipe_set_base(set->crtc,
94352cf9 9269 set->x, set->y, set->fb);
50f56119
DV		 9270 }
9271
2d05eae1 9272 if (ret) {
bf67dfeb
DV		 9273 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
9274 set->crtc->base.id, ret);
50f56119 9275fail:
2d05eae1 9276 intel_set_config_restore_state(dev, config);
50f56119 9277
2d05eae1
CW		 9278 /* Try to restore the config */
9279 if (config->mode_changed &&
9280 intel_set_mode(save_set.crtc, save_set.mode,
9281 save_set.x, save_set.y, save_set.fb))
9282 DRM_ERROR("failed to restore config after modeset failure\n");
9283 }
50f56119 9284
d9e55608
DV		 9285out_config:
9286 intel_set_config_free(config);
50f56119
DV		 9287 return ret;
9288}
f6e5b160
CW		 9289
9290static const struct drm_crtc_funcs intel_crtc_funcs = {
f6e5b160
CW		 9291 .cursor_set = intel_crtc_cursor_set,
9292 .cursor_move = intel_crtc_cursor_move,
9293 .gamma_set = intel_crtc_gamma_set,
50f56119 9294 .set_config = intel_crtc_set_config,
f6e5b160
CW		 9295 .destroy = intel_crtc_destroy,
9296 .page_flip = intel_crtc_page_flip,
9297};
9298
79f689aa
PZ		 9299static void intel_cpu_pll_init(struct drm_device *dev)
9300{
affa9354 9301 if (HAS_DDI(dev))
79f689aa
PZ		 9302 intel_ddi_pll_init(dev);
9303}
9304
5358901f
DV		 9305static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv,
9306 struct intel_shared_dpll *pll,
9307 struct intel_dpll_hw_state *hw_state)
ee7b9f93 9308{
5358901f 9309 uint32_t val;
ee7b9f93 9310
5358901f 9311 val = I915_READ(PCH_DPLL(pll->id));
66e985c0
DV		 9312 hw_state->dpll = val;
9313 hw_state->fp0 = I915_READ(PCH_FP0(pll->id));
9314 hw_state->fp1 = I915_READ(PCH_FP1(pll->id));
5358901f
DV		 9315
9316 return val & DPLL_VCO_ENABLE;
9317}
9318
15bdd4cf
DV		 9319static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv,
9320 struct intel_shared_dpll *pll)
9321{
9322 I915_WRITE(PCH_FP0(pll->id), pll->hw_state.fp0);
9323 I915_WRITE(PCH_FP1(pll->id), pll->hw_state.fp1);
9324}
9325
e7b903d2
DV		 9326static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv,
9327 struct intel_shared_dpll *pll)
9328{
e7b903d2
DV		 9329 /* PCH refclock must be enabled first */
9330 assert_pch_refclk_enabled(dev_priv);
9331
15bdd4cf
DV		 9332 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
9333
9334 /* Wait for the clocks to stabilize. */
9335 POSTING_READ(PCH_DPLL(pll->id));
9336 udelay(150);
9337
9338 /* The pixel multiplier can only be updated once the
9339 * DPLL is enabled and the clocks are stable.
9340 *
9341 * So write it again.
9342 */
9343 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
9344 POSTING_READ(PCH_DPLL(pll->id));
e7b903d2
DV		 9345 udelay(200);
9346}
9347
9348static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv,
9349 struct intel_shared_dpll *pll)
9350{
9351 struct drm_device *dev = dev_priv->dev;
9352 struct intel_crtc *crtc;
e7b903d2
DV		 9353
9354 /* Make sure no transcoder isn't still depending on us. */
9355 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
9356 if (intel_crtc_to_shared_dpll(crtc) == pll)
9357 assert_pch_transcoder_disabled(dev_priv, crtc->pipe);
ee7b9f93
JB		 9358 }
9359
15bdd4cf
DV		 9360 I915_WRITE(PCH_DPLL(pll->id), 0);
9361 POSTING_READ(PCH_DPLL(pll->id));
e7b903d2
DV		 9362 udelay(200);
9363}
9364
46edb027
DV		 9365static char *ibx_pch_dpll_names[] = {
9366 "PCH DPLL A",
9367 "PCH DPLL B",
9368};
9369
7c74ade1 9370static void ibx_pch_dpll_init(struct drm_device *dev)
ee7b9f93 9371{
e7b903d2 9372 struct drm_i915_private *dev_priv = dev->dev_private;
ee7b9f93
JB		 9373 int i;
9374
7c74ade1 9375 dev_priv->num_shared_dpll = 2;
ee7b9f93 9376
e72f9fbf 9377 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
46edb027
DV		 9378 dev_priv->shared_dplls[i].id = i;
9379 dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i];
15bdd4cf 9380 dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set;
e7b903d2
DV		 9381 dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable;
9382 dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable;
5358901f
DV		 9383 dev_priv->shared_dplls[i].get_hw_state =
9384 ibx_pch_dpll_get_hw_state;
ee7b9f93
JB		 9385 }
9386}
9387
7c74ade1
DV		 9388static void intel_shared_dpll_init(struct drm_device *dev)
9389{
e7b903d2 9390 struct drm_i915_private *dev_priv = dev->dev_private;
7c74ade1
DV		 9391
9392 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
9393 ibx_pch_dpll_init(dev);
9394 else
9395 dev_priv->num_shared_dpll = 0;
9396
9397 BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS);
9398 DRM_DEBUG_KMS("%i shared PLLs initialized\n",
9399 dev_priv->num_shared_dpll);
9400}
9401
b358d0a6 9402static void intel_crtc_init(struct drm_device *dev, int pipe)
79e53945 9403{
22fd0fab 9404 drm_i915_private_t *dev_priv = dev->dev_private;
79e53945
JB		 9405 struct intel_crtc *intel_crtc;
9406 int i;
9407
9408 intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
9409 if (intel_crtc == NULL)
9410 return;
9411
9412 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
9413
9414 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
79e53945
JB		 9415 for (i = 0; i < 256; i++) {
9416 intel_crtc->lut_r[i] = i;
9417 intel_crtc->lut_g[i] = i;
9418 intel_crtc->lut_b[i] = i;
9419 }
9420
80824003
JB		 9421 /* Swap pipes & planes for FBC on pre-965 */
9422 intel_crtc->pipe = pipe;
9423 intel_crtc->plane = pipe;
e2e767ab 9424 if (IS_MOBILE(dev) && IS_GEN3(dev)) {
28c97730 9425 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
e2e767ab 9426 intel_crtc->plane = !pipe;
80824003
JB		 9427 }
9428
22fd0fab
JB		 9429 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
9430 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
9431 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
9432 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
9433
79e53945 9434 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
79e53945
JB		 9435}
9436
08d7b3d1 9437int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
05394f39 9438 struct drm_file *file)
08d7b3d1 9439{
08d7b3d1 9440 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
c05422d5
DV		 9441 struct drm_mode_object *drmmode_obj;
9442 struct intel_crtc *crtc;
08d7b3d1 9443
1cff8f6b
DV		 9444 if (!drm_core_check_feature(dev, DRIVER_MODESET))
9445 return -ENODEV;
08d7b3d1 9446
c05422d5
DV		 9447 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
9448 DRM_MODE_OBJECT_CRTC);
08d7b3d1 9449
c05422d5 9450 if (!drmmode_obj) {
08d7b3d1
CW		 9451 DRM_ERROR("no such CRTC id\n");
9452 return -EINVAL;
9453 }
9454
c05422d5
DV		 9455 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
9456 pipe_from_crtc_id->pipe = crtc->pipe;
08d7b3d1 9457
c05422d5 9458 return 0;
08d7b3d1
CW		 9459}
9460
66a9278e 9461static int intel_encoder_clones(struct intel_encoder *encoder)
79e53945 9462{
66a9278e
DV		 9463 struct drm_device *dev = encoder->base.dev;
9464 struct intel_encoder *source_encoder;
79e53945 9465 int index_mask = 0;
79e53945
JB		 9466 int entry = 0;
9467
66a9278e
DV		 9468 list_for_each_entry(source_encoder,
9469 &dev->mode_config.encoder_list, base.head) {
9470
9471 if (encoder == source_encoder)
79e53945 9472 index_mask |= (1 << entry);
66a9278e
DV		 9473
9474 /* Intel hw has only one MUX where enocoders could be cloned. */
9475 if (encoder->cloneable && source_encoder->cloneable)
9476 index_mask |= (1 << entry);
9477
79e53945
JB		 9478 entry++;
9479 }
4ef69c7a 9480
79e53945
JB		 9481 return index_mask;
9482}
9483
4d302442
CW		 9484static bool has_edp_a(struct drm_device *dev)
9485{
9486 struct drm_i915_private *dev_priv = dev->dev_private;
9487
9488 if (!IS_MOBILE(dev))
9489 return false;
9490
9491 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
9492 return false;
9493
9494 if (IS_GEN5(dev) &&
9495 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
9496 return false;
9497
9498 return true;
9499}
9500
79e53945
JB		 9501static void intel_setup_outputs(struct drm_device *dev)
9502{
725e30ad 9503 struct drm_i915_private *dev_priv = dev->dev_private;
4ef69c7a 9504 struct intel_encoder *encoder;
cb0953d7 9505 bool dpd_is_edp = false;
79e53945 9506
c9093354 9507 intel_lvds_init(dev);
79e53945 9508
c40c0f5b 9509 if (!IS_ULT(dev))
79935fca 9510 intel_crt_init(dev);
cb0953d7 9511
affa9354 9512 if (HAS_DDI(dev)) {
0e72a5b5
ED		 9513 int found;
9514
9515 /* Haswell uses DDI functions to detect digital outputs */
9516 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
9517 /* DDI A only supports eDP */
9518 if (found)
9519 intel_ddi_init(dev, PORT_A);
9520
9521 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
9522 * register */
9523 found = I915_READ(SFUSE_STRAP);
9524
9525 if (found & SFUSE_STRAP_DDIB_DETECTED)
9526 intel_ddi_init(dev, PORT_B);
9527 if (found & SFUSE_STRAP_DDIC_DETECTED)
9528 intel_ddi_init(dev, PORT_C);
9529 if (found & SFUSE_STRAP_DDID_DETECTED)
9530 intel_ddi_init(dev, PORT_D);
9531 } else if (HAS_PCH_SPLIT(dev)) {
cb0953d7 9532 int found;
270b3042
DV		 9533 dpd_is_edp = intel_dpd_is_edp(dev);
9534
9535 if (has_edp_a(dev))
9536 intel_dp_init(dev, DP_A, PORT_A);
cb0953d7 9537
dc0fa718 9538 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
461ed3ca 9539 /* PCH SDVOB multiplex with HDMIB */
eef4eacb 9540 found = intel_sdvo_init(dev, PCH_SDVOB, true);
30ad48b7 9541 if (!found)
e2debe91 9542 intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
5eb08b69 9543 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
ab9d7c30 9544 intel_dp_init(dev, PCH_DP_B, PORT_B);
30ad48b7
ZW		 9545 }
9546
dc0fa718 9547 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
e2debe91 9548 intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
30ad48b7 9549
dc0fa718 9550 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
e2debe91 9551 intel_hdmi_init(dev, PCH_HDMID, PORT_D);
30ad48b7 9552
5eb08b69 9553 if (I915_READ(PCH_DP_C) & DP_DETECTED)
ab9d7c30 9554 intel_dp_init(dev, PCH_DP_C, PORT_C);
5eb08b69 9555
270b3042 9556 if (I915_READ(PCH_DP_D) & DP_DETECTED)
ab9d7c30 9557 intel_dp_init(dev, PCH_DP_D, PORT_D);
4a87d65d 9558 } else if (IS_VALLEYVIEW(dev)) {
19c03924 9559 /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */
6f6005a5
JB		 9560 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED) {
9561 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC,
9562 PORT_C);
9563 if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
9564 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C,
9565 PORT_C);
9566 }
19c03924 9567
dc0fa718 9568 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
e2debe91
PZ		 9569 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
9570 PORT_B);
67cfc203
VS		 9571 if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
9572 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
4a87d65d 9573 }
3cfca973
JN		 9574
9575 intel_dsi_init(dev);
103a196f 9576 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
27185ae1 9577 bool found = false;
7d57382e 9578
e2debe91 9579 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
b01f2c3a 9580 DRM_DEBUG_KMS("probing SDVOB\n");
e2debe91 9581 found = intel_sdvo_init(dev, GEN3_SDVOB, true);
b01f2c3a
JB		 9582 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
9583 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
e2debe91 9584 intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
b01f2c3a 9585 }
27185ae1 9586
e7281eab 9587 if (!found && SUPPORTS_INTEGRATED_DP(dev))
ab9d7c30 9588 intel_dp_init(dev, DP_B, PORT_B);
725e30ad 9589 }
13520b05
KH		 9590
9591 /* Before G4X SDVOC doesn't have its own detect register */
13520b05 9592
e2debe91 9593 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
b01f2c3a 9594 DRM_DEBUG_KMS("probing SDVOC\n");
e2debe91 9595 found = intel_sdvo_init(dev, GEN3_SDVOC, false);
b01f2c3a 9596 }
27185ae1 9597
e2debe91 9598 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
27185ae1 9599
b01f2c3a
JB		 9600 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
9601 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
e2debe91 9602 intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
b01f2c3a 9603 }
e7281eab 9604 if (SUPPORTS_INTEGRATED_DP(dev))
ab9d7c30 9605 intel_dp_init(dev, DP_C, PORT_C);
725e30ad 9606 }
27185ae1 9607
b01f2c3a 9608 if (SUPPORTS_INTEGRATED_DP(dev) &&
e7281eab 9609 (I915_READ(DP_D) & DP_DETECTED))
ab9d7c30 9610 intel_dp_init(dev, DP_D, PORT_D);
bad720ff 9611 } else if (IS_GEN2(dev))
79e53945
JB		 9612 intel_dvo_init(dev);
9613
103a196f 9614 if (SUPPORTS_TV(dev))
79e53945
JB		 9615 intel_tv_init(dev);
9616
4ef69c7a
CW		 9617 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
9618 encoder->base.possible_crtcs = encoder->crtc_mask;
9619 encoder->base.possible_clones =
66a9278e 9620 intel_encoder_clones(encoder);
79e53945 9621 }
47356eb6 9622
dde86e2d 9623 intel_init_pch_refclk(dev);
270b3042
DV		 9624
9625 drm_helper_move_panel_connectors_to_head(dev);
79e53945
JB		 9626}
9627
ddfe1567
CW		 9628void intel_framebuffer_fini(struct intel_framebuffer *fb)
9629{
9630 drm_framebuffer_cleanup(&fb->base);
9631 drm_gem_object_unreference_unlocked(&fb->obj->base);
9632}
9633
79e53945
JB		 9634static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
9635{
9636 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
79e53945 9637
ddfe1567 9638 intel_framebuffer_fini(intel_fb);
79e53945
JB		 9639 kfree(intel_fb);
9640}
9641
9642static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
05394f39 9643 struct drm_file *file,
79e53945
JB		 9644 unsigned int *handle)
9645{
9646 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
05394f39 9647 struct drm_i915_gem_object *obj = intel_fb->obj;
79e53945 9648
05394f39 9649 return drm_gem_handle_create(file, &obj->base, handle);
79e53945
JB		 9650}
9651
9652static const struct drm_framebuffer_funcs intel_fb_funcs = {
9653 .destroy = intel_user_framebuffer_destroy,
9654 .create_handle = intel_user_framebuffer_create_handle,
9655};
9656
38651674
DA		 9657int intel_framebuffer_init(struct drm_device *dev,
9658 struct intel_framebuffer *intel_fb,
308e5bcb 9659 struct drm_mode_fb_cmd2 *mode_cmd,
05394f39 9660 struct drm_i915_gem_object *obj)
79e53945 9661{
a35cdaa0 9662 int pitch_limit;
79e53945
JB		 9663 int ret;
9664
c16ed4be
CW		 9665 if (obj->tiling_mode == I915_TILING_Y) {
9666 DRM_DEBUG("hardware does not support tiling Y\n");
57cd6508 9667 return -EINVAL;
c16ed4be 9668 }
57cd6508 9669
c16ed4be
CW		 9670 if (mode_cmd->pitches[0] & 63) {
9671 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
9672 mode_cmd->pitches[0]);
57cd6508 9673 return -EINVAL;
c16ed4be 9674 }
57cd6508 9675
a35cdaa0
CW		 9676 if (INTEL_INFO(dev)->gen >= 5 && !IS_VALLEYVIEW(dev)) {
9677 pitch_limit = 32*1024;
9678 } else if (INTEL_INFO(dev)->gen >= 4) {
9679 if (obj->tiling_mode)
9680 pitch_limit = 16*1024;
9681 else
9682 pitch_limit = 32*1024;
9683 } else if (INTEL_INFO(dev)->gen >= 3) {
9684 if (obj->tiling_mode)
9685 pitch_limit = 8*1024;
9686 else
9687 pitch_limit = 16*1024;
9688 } else
9689 /* XXX DSPC is limited to 4k tiled */
9690 pitch_limit = 8*1024;
9691
9692 if (mode_cmd->pitches[0] > pitch_limit) {
9693 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
9694 obj->tiling_mode ? "tiled" : "linear",
9695 mode_cmd->pitches[0], pitch_limit);
5d7bd705 9696 return -EINVAL;
c16ed4be 9697 }
5d7bd705
VS		 9698
9699 if (obj->tiling_mode != I915_TILING_NONE &&
c16ed4be
CW		 9700 mode_cmd->pitches[0] != obj->stride) {
9701 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
9702 mode_cmd->pitches[0], obj->stride);
5d7bd705 9703 return -EINVAL;
c16ed4be 9704 }
5d7bd705 9705
57779d06 9706 /* Reject formats not supported by any plane early. */
308e5bcb 9707 switch (mode_cmd->pixel_format) {
57779d06 9708 case DRM_FORMAT_C8:
04b3924d
VS		 9709 case DRM_FORMAT_RGB565:
9710 case DRM_FORMAT_XRGB8888:
9711 case DRM_FORMAT_ARGB8888:
57779d06
VS		 9712 break;
9713 case DRM_FORMAT_XRGB1555:
9714 case DRM_FORMAT_ARGB1555:
c16ed4be 9715 if (INTEL_INFO(dev)->gen > 3) {
4ee62c76
VS		 9716 DRM_DEBUG("unsupported pixel format: %s\n",
9717 drm_get_format_name(mode_cmd->pixel_format));
57779d06 9718 return -EINVAL;
c16ed4be 9719 }
57779d06
VS		 9720 break;
9721 case DRM_FORMAT_XBGR8888:
9722 case DRM_FORMAT_ABGR8888:
04b3924d
VS		 9723 case DRM_FORMAT_XRGB2101010:
9724 case DRM_FORMAT_ARGB2101010:
57779d06
VS		 9725 case DRM_FORMAT_XBGR2101010:
9726 case DRM_FORMAT_ABGR2101010:
c16ed4be 9727 if (INTEL_INFO(dev)->gen < 4) {
4ee62c76
VS		 9728 DRM_DEBUG("unsupported pixel format: %s\n",
9729 drm_get_format_name(mode_cmd->pixel_format));
57779d06 9730 return -EINVAL;
c16ed4be 9731 }
b5626747 9732 break;
04b3924d
VS		 9733 case DRM_FORMAT_YUYV:
9734 case DRM_FORMAT_UYVY:
9735 case DRM_FORMAT_YVYU:
9736 case DRM_FORMAT_VYUY:
c16ed4be 9737 if (INTEL_INFO(dev)->gen < 5) {
4ee62c76
VS		 9738 DRM_DEBUG("unsupported pixel format: %s\n",
9739 drm_get_format_name(mode_cmd->pixel_format));
57779d06 9740 return -EINVAL;
c16ed4be 9741 }
57cd6508
CW		 9742 break;
9743 default:
4ee62c76
VS		 9744 DRM_DEBUG("unsupported pixel format: %s\n",
9745 drm_get_format_name(mode_cmd->pixel_format));
57cd6508
CW		 9746 return -EINVAL;
9747 }
9748
90f9a336
VS		 9749 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
9750 if (mode_cmd->offsets[0] != 0)
9751 return -EINVAL;
9752
c7d73f6a
DV		 9753 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
9754 intel_fb->obj = obj;
9755
79e53945
JB		 9756 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
9757 if (ret) {
9758 DRM_ERROR("framebuffer init failed %d\n", ret);
9759 return ret;
9760 }
9761
79e53945
JB		 9762 return 0;
9763}
9764
79e53945
JB		 9765static struct drm_framebuffer *
9766intel_user_framebuffer_create(struct drm_device *dev,
9767 struct drm_file *filp,
308e5bcb 9768 struct drm_mode_fb_cmd2 *mode_cmd)
79e53945 9769{
05394f39 9770 struct drm_i915_gem_object *obj;
79e53945 9771
308e5bcb
JB		 9772 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
9773 mode_cmd->handles[0]));
c8725226 9774 if (&obj->base == NULL)
cce13ff7 9775 return ERR_PTR(-ENOENT);
79e53945 9776
d2dff872 9777 return intel_framebuffer_create(dev, mode_cmd, obj);
79e53945
JB		 9778}
9779
79e53945 9780static const struct drm_mode_config_funcs intel_mode_funcs = {
79e53945 9781 .fb_create = intel_user_framebuffer_create,
eb1f8e4f 9782 .output_poll_changed = intel_fb_output_poll_changed,
79e53945
JB		 9783};
9784
e70236a8
JB		 9785/* Set up chip specific display functions */
9786static void intel_init_display(struct drm_device *dev)
9787{
9788 struct drm_i915_private *dev_priv = dev->dev_private;
9789
ee9300bb
DV		 9790 if (HAS_PCH_SPLIT(dev) || IS_G4X(dev))
9791 dev_priv->display.find_dpll = g4x_find_best_dpll;
9792 else if (IS_VALLEYVIEW(dev))
9793 dev_priv->display.find_dpll = vlv_find_best_dpll;
9794 else if (IS_PINEVIEW(dev))
9795 dev_priv->display.find_dpll = pnv_find_best_dpll;
9796 else
9797 dev_priv->display.find_dpll = i9xx_find_best_dpll;
9798
affa9354 9799 if (HAS_DDI(dev)) {
0e8ffe1b 9800 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
09b4ddf9 9801 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
4f771f10
PZ		 9802 dev_priv->display.crtc_enable = haswell_crtc_enable;
9803 dev_priv->display.crtc_disable = haswell_crtc_disable;
6441ab5f 9804 dev_priv->display.off = haswell_crtc_off;
09b4ddf9
PZ		 9805 dev_priv->display.update_plane = ironlake_update_plane;
9806 } else if (HAS_PCH_SPLIT(dev)) {
0e8ffe1b 9807 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
f1f644dc 9808 dev_priv->display.get_clock = ironlake_crtc_clock_get;
f564048e 9809 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
76e5a89c
DV		 9810 dev_priv->display.crtc_enable = ironlake_crtc_enable;
9811 dev_priv->display.crtc_disable = ironlake_crtc_disable;
ee7b9f93 9812 dev_priv->display.off = ironlake_crtc_off;
17638cd6 9813 dev_priv->display.update_plane = ironlake_update_plane;
89b667f8
JB		 9814 } else if (IS_VALLEYVIEW(dev)) {
9815 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
f1f644dc 9816 dev_priv->display.get_clock = i9xx_crtc_clock_get;
89b667f8
JB		 9817 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
9818 dev_priv->display.crtc_enable = valleyview_crtc_enable;
9819 dev_priv->display.crtc_disable = i9xx_crtc_disable;
9820 dev_priv->display.off = i9xx_crtc_off;
9821 dev_priv->display.update_plane = i9xx_update_plane;
f564048e 9822 } else {
0e8ffe1b 9823 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
f1f644dc 9824 dev_priv->display.get_clock = i9xx_crtc_clock_get;
f564048e 9825 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
76e5a89c
DV		 9826 dev_priv->display.crtc_enable = i9xx_crtc_enable;
9827 dev_priv->display.crtc_disable = i9xx_crtc_disable;
ee7b9f93 9828 dev_priv->display.off = i9xx_crtc_off;
17638cd6 9829 dev_priv->display.update_plane = i9xx_update_plane;
f564048e 9830 }
e70236a8 9831
e70236a8 9832 /* Returns the core display clock speed */
25eb05fc
JB		 9833 if (IS_VALLEYVIEW(dev))
9834 dev_priv->display.get_display_clock_speed =
9835 valleyview_get_display_clock_speed;
9836 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
e70236a8
JB		 9837 dev_priv->display.get_display_clock_speed =
9838 i945_get_display_clock_speed;
9839 else if (IS_I915G(dev))
9840 dev_priv->display.get_display_clock_speed =
9841 i915_get_display_clock_speed;
257a7ffc 9842 else if (IS_I945GM(dev) || IS_845G(dev))
e70236a8
JB		 9843 dev_priv->display.get_display_clock_speed =
9844 i9xx_misc_get_display_clock_speed;
257a7ffc
DV		 9845 else if (IS_PINEVIEW(dev))
9846 dev_priv->display.get_display_clock_speed =
9847 pnv_get_display_clock_speed;
e70236a8
JB		 9848 else if (IS_I915GM(dev))
9849 dev_priv->display.get_display_clock_speed =
9850 i915gm_get_display_clock_speed;
9851 else if (IS_I865G(dev))
9852 dev_priv->display.get_display_clock_speed =
9853 i865_get_display_clock_speed;
f0f8a9ce 9854 else if (IS_I85X(dev))
e70236a8
JB		 9855 dev_priv->display.get_display_clock_speed =
9856 i855_get_display_clock_speed;
9857 else /* 852, 830 */
9858 dev_priv->display.get_display_clock_speed =
9859 i830_get_display_clock_speed;
9860
7f8a8569 9861 if (HAS_PCH_SPLIT(dev)) {
f00a3ddf 9862 if (IS_GEN5(dev)) {
674cf967 9863 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
e0dac65e 9864 dev_priv->display.write_eld = ironlake_write_eld;
1398261a 9865 } else if (IS_GEN6(dev)) {
674cf967 9866 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
e0dac65e 9867 dev_priv->display.write_eld = ironlake_write_eld;
357555c0
JB		 9868 } else if (IS_IVYBRIDGE(dev)) {
9869 /* FIXME: detect B0+ stepping and use auto training */
9870 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
e0dac65e 9871 dev_priv->display.write_eld = ironlake_write_eld;
01a415fd
DV		 9872 dev_priv->display.modeset_global_resources =
9873 ivb_modeset_global_resources;
c82e4d26
ED		 9874 } else if (IS_HASWELL(dev)) {
9875 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
83358c85 9876 dev_priv->display.write_eld = haswell_write_eld;
d6dd9eb1
DV		 9877 dev_priv->display.modeset_global_resources =
9878 haswell_modeset_global_resources;
a0e63c22 9879 }
6067aaea 9880 } else if (IS_G4X(dev)) {
e0dac65e 9881 dev_priv->display.write_eld = g4x_write_eld;
e70236a8 9882 }
8c9f3aaf
JB		 9883
9884 /* Default just returns -ENODEV to indicate unsupported */
9885 dev_priv->display.queue_flip = intel_default_queue_flip;
9886
9887 switch (INTEL_INFO(dev)->gen) {
9888 case 2:
9889 dev_priv->display.queue_flip = intel_gen2_queue_flip;
9890 break;
9891
9892 case 3:
9893 dev_priv->display.queue_flip = intel_gen3_queue_flip;
9894 break;
9895
9896 case 4:
9897 case 5:
9898 dev_priv->display.queue_flip = intel_gen4_queue_flip;
9899 break;
9900
9901 case 6:
9902 dev_priv->display.queue_flip = intel_gen6_queue_flip;
9903 break;
7c9017e5
JB		 9904 case 7:
9905 dev_priv->display.queue_flip = intel_gen7_queue_flip;
9906 break;
8c9f3aaf 9907 }
e70236a8
JB		 9908}
9909
b690e96c
JB		 9910/*
9911 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
9912 * resume, or other times. This quirk makes sure that's the case for
9913 * affected systems.
9914 */
0206e353 9915static void quirk_pipea_force(struct drm_device *dev)
b690e96c
JB		 9916{
9917 struct drm_i915_private *dev_priv = dev->dev_private;
9918
9919 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
bc0daf48 9920 DRM_INFO("applying pipe a force quirk\n");
b690e96c
JB		 9921}
9922
435793df
KP		 9923/*
9924 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
9925 */
9926static void quirk_ssc_force_disable(struct drm_device *dev)
9927{
9928 struct drm_i915_private *dev_priv = dev->dev_private;
9929 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
bc0daf48 9930 DRM_INFO("applying lvds SSC disable quirk\n");
435793df
KP		 9931}
9932
4dca20ef 9933/*
5a15ab5b
CE		 9934 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
9935 * brightness value
4dca20ef
CE		 9936 */
9937static void quirk_invert_brightness(struct drm_device *dev)
9938{
9939 struct drm_i915_private *dev_priv = dev->dev_private;
9940 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
bc0daf48 9941 DRM_INFO("applying inverted panel brightness quirk\n");
435793df
KP		 9942}
9943
e85843be
KM		 9944/*
9945 * Some machines (Dell XPS13) suffer broken backlight controls if
9946 * BLM_PCH_PWM_ENABLE is set.
9947 */
9948static void quirk_no_pcm_pwm_enable(struct drm_device *dev)
9949{
9950 struct drm_i915_private *dev_priv = dev->dev_private;
9951 dev_priv->quirks |= QUIRK_NO_PCH_PWM_ENABLE;
9952 DRM_INFO("applying no-PCH_PWM_ENABLE quirk\n");
9953}
9954
b690e96c
JB		 9955struct intel_quirk {
9956 int device;
9957 int subsystem_vendor;
9958 int subsystem_device;
9959 void (*hook)(struct drm_device *dev);
9960};
9961
5f85f176
EE		 9962/* For systems that don't have a meaningful PCI subdevice/subvendor ID */
9963struct intel_dmi_quirk {
9964 void (*hook)(struct drm_device *dev);
9965 const struct dmi_system_id (*dmi_id_list)[];
9966};
9967
9968static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
9969{
9970 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
9971 return 1;
9972}
9973
9974static const struct intel_dmi_quirk intel_dmi_quirks[] = {
9975 {
9976 .dmi_id_list = &(const struct dmi_system_id[]) {
9977 {
9978 .callback = intel_dmi_reverse_brightness,
9979 .ident = "NCR Corporation",
9980 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
9981 DMI_MATCH(DMI_PRODUCT_NAME, ""),
9982 },
9983 },
9984 { } /* terminating entry */
9985 },
9986 .hook = quirk_invert_brightness,
9987 },
9988};
9989
c43b5634 9990static struct intel_quirk intel_quirks[] = {
b690e96c 9991 /* HP Mini needs pipe A force quirk (LP: #322104) */
0206e353 9992 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
b690e96c 9993
b690e96c
JB		 9994 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
9995 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
9996
b690e96c
JB		 9997 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
9998 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
9999
ccd0d36e 10000 /* 830/845 need to leave pipe A & dpll A up */
b690e96c 10001 { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
dcdaed6e 10002 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
435793df
KP		 10003
10004 /* Lenovo U160 cannot use SSC on LVDS */
10005 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
070d329a
MAS		 10006
10007 /* Sony Vaio Y cannot use SSC on LVDS */
10008 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
5a15ab5b
CE		 10009
10010 /* Acer Aspire 5734Z must invert backlight brightness */
10011 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
1ffff603
JN		 10012
10013 /* Acer/eMachines G725 */
10014 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
01e3a8fe
JN		 10015
10016 /* Acer/eMachines e725 */
10017 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
5559ecad
JN		 10018
10019 /* Acer/Packard Bell NCL20 */
10020 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
ac4199e0
DV		 10021
10022 /* Acer Aspire 4736Z */
10023 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
e85843be
KM		 10024
10025 /* Dell XPS13 HD Sandy Bridge */
10026 { 0x0116, 0x1028, 0x052e, quirk_no_pcm_pwm_enable },
10027 /* Dell XPS13 HD and XPS13 FHD Ivy Bridge */
10028 { 0x0166, 0x1028, 0x058b, quirk_no_pcm_pwm_enable },
b690e96c
JB		 10029};
10030
10031static void intel_init_quirks(struct drm_device *dev)
10032{
10033 struct pci_dev *d = dev->pdev;
10034 int i;
10035
10036 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
10037 struct intel_quirk *q = &intel_quirks[i];
10038
10039 if (d->device == q->device &&
10040 (d->subsystem_vendor == q->subsystem_vendor ||
10041 q->subsystem_vendor == PCI_ANY_ID) &&
10042 (d->subsystem_device == q->subsystem_device ||
10043 q->subsystem_device == PCI_ANY_ID))
10044 q->hook(dev);
10045 }
5f85f176
EE		 10046 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
10047 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
10048 intel_dmi_quirks[i].hook(dev);
10049 }
b690e96c
JB		 10050}
10051
9cce37f4
JB		 10052/* Disable the VGA plane that we never use */
10053static void i915_disable_vga(struct drm_device *dev)
10054{
10055 struct drm_i915_private *dev_priv = dev->dev_private;
10056 u8 sr1;
766aa1c4 10057 u32 vga_reg = i915_vgacntrl_reg(dev);
9cce37f4
JB		 10058
10059 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
3fdcf431 10060 outb(SR01, VGA_SR_INDEX);
9cce37f4
JB		 10061 sr1 = inb(VGA_SR_DATA);
10062 outb(sr1 | 1<<5, VGA_SR_DATA);
81b5c7bc
AW		 10063
10064 /* Disable VGA memory on Intel HD */
10065 if (HAS_PCH_SPLIT(dev)) {
10066 outb(inb(VGA_MSR_READ) & ~VGA_MSR_MEM_EN, VGA_MSR_WRITE);
10067 vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO |
10068 VGA_RSRC_NORMAL_IO |
10069 VGA_RSRC_NORMAL_MEM);
10070 }
10071
9cce37f4
JB		 10072 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10073 udelay(300);
10074
10075 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
10076 POSTING_READ(vga_reg);
10077}
10078
81b5c7bc
AW		 10079static void i915_enable_vga(struct drm_device *dev)
10080{
10081 /* Enable VGA memory on Intel HD */
10082 if (HAS_PCH_SPLIT(dev)) {
10083 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
10084 outb(inb(VGA_MSR_READ) | VGA_MSR_MEM_EN, VGA_MSR_WRITE);
10085 vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO |
10086 VGA_RSRC_LEGACY_MEM |
10087 VGA_RSRC_NORMAL_IO |
10088 VGA_RSRC_NORMAL_MEM);
10089 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10090 }
10091}
10092
f817586c
DV		 10093void intel_modeset_init_hw(struct drm_device *dev)
10094{
fa42e23c 10095 intel_init_power_well(dev);
0232e927 10096
a8f78b58
ED		 10097 intel_prepare_ddi(dev);
10098
f817586c
DV		 10099 intel_init_clock_gating(dev);
10100
79f5b2c7 10101 mutex_lock(&dev->struct_mutex);
8090c6b9 10102 intel_enable_gt_powersave(dev);
79f5b2c7 10103 mutex_unlock(&dev->struct_mutex);
f817586c
DV		 10104}
10105
7d708ee4
ID		 10106void intel_modeset_suspend_hw(struct drm_device *dev)
10107{
10108 intel_suspend_hw(dev);
10109}
10110
79e53945
JB		 10111void intel_modeset_init(struct drm_device *dev)
10112{
652c393a 10113 struct drm_i915_private *dev_priv = dev->dev_private;
7f1f3851 10114 int i, j, ret;
79e53945
JB		 10115
10116 drm_mode_config_init(dev);
10117
10118 dev->mode_config.min_width = 0;
10119 dev->mode_config.min_height = 0;
10120
019d96cb
DA		 10121 dev->mode_config.preferred_depth = 24;
10122 dev->mode_config.prefer_shadow = 1;
10123
e6ecefaa 10124 dev->mode_config.funcs = &intel_mode_funcs;
79e53945 10125
b690e96c
JB		 10126 intel_init_quirks(dev);
10127
1fa61106
ED		 10128 intel_init_pm(dev);
10129
e3c74757
BW		 10130 if (INTEL_INFO(dev)->num_pipes == 0)
10131 return;
10132
e70236a8
JB		 10133 intel_init_display(dev);
10134
a6c45cf0
CW		 10135 if (IS_GEN2(dev)) {
10136 dev->mode_config.max_width = 2048;
10137 dev->mode_config.max_height = 2048;
10138 } else if (IS_GEN3(dev)) {
5e4d6fa7
KP		 10139 dev->mode_config.max_width = 4096;
10140 dev->mode_config.max_height = 4096;
79e53945 10141 } else {
a6c45cf0
CW		 10142 dev->mode_config.max_width = 8192;
10143 dev->mode_config.max_height = 8192;
79e53945 10144 }
5d4545ae 10145 dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
79e53945 10146
28c97730 10147 DRM_DEBUG_KMS("%d display pipe%s available.\n",
7eb552ae
BW		 10148 INTEL_INFO(dev)->num_pipes,
10149 INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
79e53945 10150
08e2a7de 10151 for_each_pipe(i) {
79e53945 10152 intel_crtc_init(dev, i);
7f1f3851
JB		 10153 for (j = 0; j < dev_priv->num_plane; j++) {
10154 ret = intel_plane_init(dev, i, j);
10155 if (ret)
06da8da2
VS		 10156 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
10157 pipe_name(i), sprite_name(i, j), ret);
7f1f3851 10158 }
79e53945
JB		 10159 }
10160
79f689aa 10161 intel_cpu_pll_init(dev);
e72f9fbf 10162 intel_shared_dpll_init(dev);
ee7b9f93 10163
9cce37f4
JB		 10164 /* Just disable it once at startup */
10165 i915_disable_vga(dev);
79e53945 10166 intel_setup_outputs(dev);
11be49eb
CW		 10167
10168 /* Just in case the BIOS is doing something questionable. */
10169 intel_disable_fbc(dev);
2c7111db
CW		 10170}
10171
24929352
DV		 10172static void
10173intel_connector_break_all_links(struct intel_connector *connector)
10174{
10175 connector->base.dpms = DRM_MODE_DPMS_OFF;
10176 connector->base.encoder = NULL;
10177 connector->encoder->connectors_active = false;
10178 connector->encoder->base.crtc = NULL;
10179}
10180
7fad798e
DV		 10181static void intel_enable_pipe_a(struct drm_device *dev)
10182{
10183 struct intel_connector *connector;
10184 struct drm_connector *crt = NULL;
10185 struct intel_load_detect_pipe load_detect_temp;
10186
10187 /* We can't just switch on the pipe A, we need to set things up with a
10188 * proper mode and output configuration. As a gross hack, enable pipe A
10189 * by enabling the load detect pipe once. */
10190 list_for_each_entry(connector,
10191 &dev->mode_config.connector_list,
10192 base.head) {
10193 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
10194 crt = &connector->base;
10195 break;
10196 }
10197 }
10198
10199 if (!crt)
10200 return;
10201
10202 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
10203 intel_release_load_detect_pipe(crt, &load_detect_temp);
10204
652c393a 10205
7fad798e
DV		 10206}
10207
fa555837
DV		 10208static bool
10209intel_check_plane_mapping(struct intel_crtc *crtc)
10210{
7eb552ae
BW		 10211 struct drm_device *dev = crtc->base.dev;
10212 struct drm_i915_private *dev_priv = dev->dev_private;
fa555837
DV		 10213 u32 reg, val;
10214
7eb552ae 10215 if (INTEL_INFO(dev)->num_pipes == 1)
fa555837
DV		 10216 return true;
10217
10218 reg = DSPCNTR(!crtc->plane);
10219 val = I915_READ(reg);
10220
10221 if ((val & DISPLAY_PLANE_ENABLE) &&
10222 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
10223 return false;
10224
10225 return true;
10226}
10227
24929352
DV		 10228static void intel_sanitize_crtc(struct intel_crtc *crtc)
10229{
10230 struct drm_device *dev = crtc->base.dev;
10231 struct drm_i915_private *dev_priv = dev->dev_private;
fa555837 10232 u32 reg;
24929352 10233
24929352 10234 /* Clear any frame start delays used for debugging left by the BIOS */
3b117c8f 10235 reg = PIPECONF(crtc->config.cpu_transcoder);
24929352
DV		 10236 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
10237
10238 /* We need to sanitize the plane -> pipe mapping first because this will
fa555837
DV		 10239 * disable the crtc (and hence change the state) if it is wrong. Note
10240 * that gen4+ has a fixed plane -> pipe mapping. */
10241 if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
24929352
DV		 10242 struct intel_connector *connector;
10243 bool plane;
10244
24929352
DV		 10245 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
10246 crtc->base.base.id);
10247
10248 /* Pipe has the wrong plane attached and the plane is active.
10249 * Temporarily change the plane mapping and disable everything
10250 * ... */
10251 plane = crtc->plane;
10252 crtc->plane = !plane;
10253 dev_priv->display.crtc_disable(&crtc->base);
10254 crtc->plane = plane;
10255
10256 /* ... and break all links. */
10257 list_for_each_entry(connector, &dev->mode_config.connector_list,
10258 base.head) {
10259 if (connector->encoder->base.crtc != &crtc->base)
10260 continue;
10261
10262 intel_connector_break_all_links(connector);
10263 }
10264
10265 WARN_ON(crtc->active);
10266 crtc->base.enabled = false;
10267 }
24929352 10268
7fad798e
DV		 10269 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
10270 crtc->pipe == PIPE_A && !crtc->active) {
10271 /* BIOS forgot to enable pipe A, this mostly happens after
10272 * resume. Force-enable the pipe to fix this, the update_dpms
10273 * call below we restore the pipe to the right state, but leave
10274 * the required bits on. */
10275 intel_enable_pipe_a(dev);
10276 }
10277
24929352
DV		 10278 /* Adjust the state of the output pipe according to whether we
10279 * have active connectors/encoders. */
10280 intel_crtc_update_dpms(&crtc->base);
10281
10282 if (crtc->active != crtc->base.enabled) {
10283 struct intel_encoder *encoder;
10284
10285 /* This can happen either due to bugs in the get_hw_state
10286 * functions or because the pipe is force-enabled due to the
10287 * pipe A quirk. */
10288 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
10289 crtc->base.base.id,
10290 crtc->base.enabled ? "enabled" : "disabled",
10291 crtc->active ? "enabled" : "disabled");
10292
10293 crtc->base.enabled = crtc->active;
10294
10295 /* Because we only establish the connector -> encoder ->
10296 * crtc links if something is active, this means the
10297 * crtc is now deactivated. Break the links. connector
10298 * -> encoder links are only establish when things are
10299 * actually up, hence no need to break them. */
10300 WARN_ON(crtc->active);
10301
10302 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
10303 WARN_ON(encoder->connectors_active);
10304 encoder->base.crtc = NULL;
10305 }
10306 }
10307}
10308
10309static void intel_sanitize_encoder(struct intel_encoder *encoder)
10310{
10311 struct intel_connector *connector;
10312 struct drm_device *dev = encoder->base.dev;
10313
10314 /* We need to check both for a crtc link (meaning that the
10315 * encoder is active and trying to read from a pipe) and the
10316 * pipe itself being active. */
10317 bool has_active_crtc = encoder->base.crtc &&
10318 to_intel_crtc(encoder->base.crtc)->active;
10319
10320 if (encoder->connectors_active && !has_active_crtc) {
10321 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
10322 encoder->base.base.id,
10323 drm_get_encoder_name(&encoder->base));
10324
10325 /* Connector is active, but has no active pipe. This is
10326 * fallout from our resume register restoring. Disable
10327 * the encoder manually again. */
10328 if (encoder->base.crtc) {
10329 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
10330 encoder->base.base.id,
10331 drm_get_encoder_name(&encoder->base));
10332 encoder->disable(encoder);
10333 }
10334
10335 /* Inconsistent output/port/pipe state happens presumably due to
10336 * a bug in one of the get_hw_state functions. Or someplace else
10337 * in our code, like the register restore mess on resume. Clamp
10338 * things to off as a safer default. */
10339 list_for_each_entry(connector,
10340 &dev->mode_config.connector_list,
10341 base.head) {
10342 if (connector->encoder != encoder)
10343 continue;
10344
10345 intel_connector_break_all_links(connector);
10346 }
10347 }
10348 /* Enabled encoders without active connectors will be fixed in
10349 * the crtc fixup. */
10350}
10351
44cec740 10352void i915_redisable_vga(struct drm_device *dev)
0fde901f
KM		 10353{
10354 struct drm_i915_private *dev_priv = dev->dev_private;
766aa1c4 10355 u32 vga_reg = i915_vgacntrl_reg(dev);
0fde901f 10356
8dc8a27c
PZ		 10357 /* This function can be called both from intel_modeset_setup_hw_state or
10358 * at a very early point in our resume sequence, where the power well
10359 * structures are not yet restored. Since this function is at a very
10360 * paranoid "someone might have enabled VGA while we were not looking"
10361 * level, just check if the power well is enabled instead of trying to
10362 * follow the "don't touch the power well if we don't need it" policy
10363 * the rest of the driver uses. */
10364 if (HAS_POWER_WELL(dev) &&
6aedd1f5 10365 (I915_READ(HSW_PWR_WELL_DRIVER) & HSW_PWR_WELL_STATE_ENABLED) == 0)
8dc8a27c
PZ		 10366 return;
10367
0fde901f
KM		 10368 if (I915_READ(vga_reg) != VGA_DISP_DISABLE) {
10369 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
209d5211 10370 i915_disable_vga(dev);
0fde901f
KM		 10371 }
10372}
10373
30e984df 10374static void intel_modeset_readout_hw_state(struct drm_device *dev)
24929352
DV		 10375{
10376 struct drm_i915_private *dev_priv = dev->dev_private;
10377 enum pipe pipe;
24929352
DV		 10378 struct intel_crtc *crtc;
10379 struct intel_encoder *encoder;
10380 struct intel_connector *connector;
5358901f 10381 int i;
24929352 10382
0e8ffe1b
DV		 10383 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10384 base.head) {
88adfff1 10385 memset(&crtc->config, 0, sizeof(crtc->config));
3b117c8f 10386
0e8ffe1b
DV		 10387 crtc->active = dev_priv->display.get_pipe_config(crtc,
10388 &crtc->config);
24929352
DV		 10389
10390 crtc->base.enabled = crtc->active;
10391
10392 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
10393 crtc->base.base.id,
10394 crtc->active ? "enabled" : "disabled");
10395 }
10396
5358901f 10397 /* FIXME: Smash this into the new shared dpll infrastructure. */
affa9354 10398 if (HAS_DDI(dev))
6441ab5f
PZ		 10399 intel_ddi_setup_hw_pll_state(dev);
10400
5358901f
DV		 10401 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
10402 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
10403
10404 pll->on = pll->get_hw_state(dev_priv, pll, &pll->hw_state);
10405 pll->active = 0;
10406 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10407 base.head) {
10408 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
10409 pll->active++;
10410 }
10411 pll->refcount = pll->active;
10412
35c95375
DV		 10413 DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
10414 pll->name, pll->refcount, pll->on);
5358901f
DV		 10415 }
10416
24929352
DV		 10417 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
10418 base.head) {
10419 pipe = 0;
10420
10421 if (encoder->get_hw_state(encoder, &pipe)) {
045ac3b5
JB		 10422 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
10423 encoder->base.crtc = &crtc->base;
510d5f2f 10424 if (encoder->get_config)
045ac3b5 10425 encoder->get_config(encoder, &crtc->config);
24929352
DV		 10426 } else {
10427 encoder->base.crtc = NULL;
10428 }
10429
10430 encoder->connectors_active = false;
10431 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
10432 encoder->base.base.id,
10433 drm_get_encoder_name(&encoder->base),
10434 encoder->base.crtc ? "enabled" : "disabled",
10435 pipe);
10436 }
10437
510d5f2f
JB		 10438 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10439 base.head) {
10440 if (!crtc->active)
10441 continue;
10442 if (dev_priv->display.get_clock)
10443 dev_priv->display.get_clock(crtc,
10444 &crtc->config);
10445 }
10446
24929352
DV		 10447 list_for_each_entry(connector, &dev->mode_config.connector_list,
10448 base.head) {
10449 if (connector->get_hw_state(connector)) {
10450 connector->base.dpms = DRM_MODE_DPMS_ON;
10451 connector->encoder->connectors_active = true;
10452 connector->base.encoder = &connector->encoder->base;
10453 } else {
10454 connector->base.dpms = DRM_MODE_DPMS_OFF;
10455 connector->base.encoder = NULL;
10456 }
10457 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
10458 connector->base.base.id,
10459 drm_get_connector_name(&connector->base),
10460 connector->base.encoder ? "enabled" : "disabled");
10461 }
30e984df
DV		 10462}
10463
10464/* Scan out the current hw modeset state, sanitizes it and maps it into the drm
10465 * and i915 state tracking structures. */
10466void intel_modeset_setup_hw_state(struct drm_device *dev,
10467 bool force_restore)
10468{
10469 struct drm_i915_private *dev_priv = dev->dev_private;
10470 enum pipe pipe;
10471 struct drm_plane *plane;
10472 struct intel_crtc *crtc;
10473 struct intel_encoder *encoder;
35c95375 10474 int i;
30e984df
DV		 10475
10476 intel_modeset_readout_hw_state(dev);
24929352 10477
babea61d
JB		 10478 /*
10479 * Now that we have the config, copy it to each CRTC struct
10480 * Note that this could go away if we move to using crtc_config
10481 * checking everywhere.
10482 */
10483 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10484 base.head) {
10485 if (crtc->active && i915_fastboot) {
10486 intel_crtc_mode_from_pipe_config(crtc, &crtc->config);
10487
10488 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
10489 crtc->base.base.id);
10490 drm_mode_debug_printmodeline(&crtc->base.mode);
10491 }
10492 }
10493
24929352
DV		 10494 /* HW state is read out, now we need to sanitize this mess. */
10495 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
10496 base.head) {
10497 intel_sanitize_encoder(encoder);
10498 }
10499
10500 for_each_pipe(pipe) {
10501 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
10502 intel_sanitize_crtc(crtc);
c0b03411 10503 intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]");
24929352 10504 }
9a935856 10505
35c95375
DV		 10506 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
10507 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
10508
10509 if (!pll->on || pll->active)
10510 continue;
10511
10512 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name);
10513
10514 pll->disable(dev_priv, pll);
10515 pll->on = false;
10516 }
10517
45e2b5f6 10518 if (force_restore) {
f30da187
DV		 10519 /*
10520 * We need to use raw interfaces for restoring state to avoid
10521 * checking (bogus) intermediate states.
10522 */
45e2b5f6 10523 for_each_pipe(pipe) {
b5644d05
JB		 10524 struct drm_crtc *crtc =
10525 dev_priv->pipe_to_crtc_mapping[pipe];
f30da187
DV		 10526
10527 __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
10528 crtc->fb);
45e2b5f6 10529 }
b5644d05
JB		 10530 list_for_each_entry(plane, &dev->mode_config.plane_list, head)
10531 intel_plane_restore(plane);
0fde901f
KM		 10532
10533 i915_redisable_vga(dev);
45e2b5f6
DV		 10534 } else {
10535 intel_modeset_update_staged_output_state(dev);
10536 }
8af6cf88
DV		 10537
10538 intel_modeset_check_state(dev);
2e938892
DV		 10539
10540 drm_mode_config_reset(dev);
2c7111db
CW		 10541}
10542
10543void intel_modeset_gem_init(struct drm_device *dev)
10544{
1833b134 10545 intel_modeset_init_hw(dev);
02e792fb
DV		 10546
10547 intel_setup_overlay(dev);
24929352 10548
45e2b5f6 10549 intel_modeset_setup_hw_state(dev, false);
79e53945
JB		 10550}
10551
10552void intel_modeset_cleanup(struct drm_device *dev)
10553{
652c393a
JB		 10554 struct drm_i915_private *dev_priv = dev->dev_private;
10555 struct drm_crtc *crtc;
652c393a 10556
fd0c0642
DV		 10557 /*
10558 * Interrupts and polling as the first thing to avoid creating havoc.
10559 * Too much stuff here (turning of rps, connectors, ...) would
10560 * experience fancy races otherwise.
10561 */
10562 drm_irq_uninstall(dev);
10563 cancel_work_sync(&dev_priv->hotplug_work);
10564 /*
10565 * Due to the hpd irq storm handling the hotplug work can re-arm the
10566 * poll handlers. Hence disable polling after hpd handling is shut down.
10567 */
f87ea761 10568 drm_kms_helper_poll_fini(dev);
fd0c0642 10569
652c393a
JB		 10570 mutex_lock(&dev->struct_mutex);
10571
723bfd70
JB		 10572 intel_unregister_dsm_handler();
10573
652c393a
JB		 10574 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
10575 /* Skip inactive CRTCs */
10576 if (!crtc->fb)
10577 continue;
10578
3dec0095 10579 intel_increase_pllclock(crtc);
652c393a
JB		 10580 }
10581
973d04f9 10582 intel_disable_fbc(dev);
e70236a8 10583
81b5c7bc
AW		 10584 i915_enable_vga(dev);
10585
8090c6b9 10586 intel_disable_gt_powersave(dev);
0cdab21f 10587
930ebb46
DV		 10588 ironlake_teardown_rc6(dev);
10589
69341a5e
KH		 10590 mutex_unlock(&dev->struct_mutex);
10591
1630fe75
CW		 10592 /* flush any delayed tasks or pending work */
10593 flush_scheduled_work();
10594
dc652f90
JN		 10595 /* destroy backlight, if any, before the connectors */
10596 intel_panel_destroy_backlight(dev);
10597
79e53945 10598 drm_mode_config_cleanup(dev);
4d7bb011
DV		 10599
10600 intel_cleanup_overlay(dev);
79e53945
JB		 10601}
10602
f1c79df3
ZW		 10603/*
10604 * Return which encoder is currently attached for connector.
10605 */
df0e9248 10606struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
79e53945 10607{
df0e9248
CW		 10608 return &intel_attached_encoder(connector)->base;
10609}
f1c79df3 10610
df0e9248
CW		 10611void intel_connector_attach_encoder(struct intel_connector *connector,
10612 struct intel_encoder *encoder)
10613{
10614 connector->encoder = encoder;
10615 drm_mode_connector_attach_encoder(&connector->base,
10616 &encoder->base);
79e53945 10617}
28d52043
DA		 10618
10619/*
10620 * set vga decode state - true == enable VGA decode
10621 */
10622int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
10623{
10624 struct drm_i915_private *dev_priv = dev->dev_private;
10625 u16 gmch_ctrl;
10626
10627 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
10628 if (state)
10629 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
10630 else
10631 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
10632 pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
10633 return 0;
10634}
c4a1d9e4 10635
c4a1d9e4 10636struct intel_display_error_state {
ff57f1b0
PZ		 10637
10638 u32 power_well_driver;
10639
63b66e5b
CW		 10640 int num_transcoders;
10641
c4a1d9e4
CW		 10642 struct intel_cursor_error_state {
10643 u32 control;
10644 u32 position;
10645 u32 base;
10646 u32 size;
52331309 10647 } cursor[I915_MAX_PIPES];
c4a1d9e4
CW		 10648
10649 struct intel_pipe_error_state {
c4a1d9e4 10650 u32 source;
52331309 10651 } pipe[I915_MAX_PIPES];
c4a1d9e4
CW		 10652
10653 struct intel_plane_error_state {
10654 u32 control;
10655 u32 stride;
10656 u32 size;
10657 u32 pos;
10658 u32 addr;
10659 u32 surface;
10660 u32 tile_offset;
52331309 10661 } plane[I915_MAX_PIPES];
63b66e5b
CW		 10662
10663 struct intel_transcoder_error_state {
10664 enum transcoder cpu_transcoder;
10665
10666 u32 conf;
10667
10668 u32 htotal;
10669 u32 hblank;
10670 u32 hsync;
10671 u32 vtotal;
10672 u32 vblank;
10673 u32 vsync;
10674 } transcoder[4];
c4a1d9e4
CW		 10675};
10676
10677struct intel_display_error_state *
10678intel_display_capture_error_state(struct drm_device *dev)
10679{
0206e353 10680 drm_i915_private_t *dev_priv = dev->dev_private;
c4a1d9e4 10681 struct intel_display_error_state *error;
63b66e5b
CW		 10682 int transcoders[] = {
10683 TRANSCODER_A,
10684 TRANSCODER_B,
10685 TRANSCODER_C,
10686 TRANSCODER_EDP,
10687 };
c4a1d9e4
CW		 10688 int i;
10689
63b66e5b
CW		 10690 if (INTEL_INFO(dev)->num_pipes == 0)
10691 return NULL;
10692
c4a1d9e4
CW		 10693 error = kmalloc(sizeof(*error), GFP_ATOMIC);
10694 if (error == NULL)
10695 return NULL;
10696
ff57f1b0
PZ		 10697 if (HAS_POWER_WELL(dev))
10698 error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
10699
52331309 10700 for_each_pipe(i) {
a18c4c3d
PZ		 10701 if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
10702 error->cursor[i].control = I915_READ(CURCNTR(i));
10703 error->cursor[i].position = I915_READ(CURPOS(i));
10704 error->cursor[i].base = I915_READ(CURBASE(i));
10705 } else {
10706 error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
10707 error->cursor[i].position = I915_READ(CURPOS_IVB(i));
10708 error->cursor[i].base = I915_READ(CURBASE_IVB(i));
10709 }
c4a1d9e4
CW		 10710
10711 error->plane[i].control = I915_READ(DSPCNTR(i));
10712 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
80ca378b 10713 if (INTEL_INFO(dev)->gen <= 3) {
51889b35 10714 error->plane[i].size = I915_READ(DSPSIZE(i));
80ca378b
PZ		 10715 error->plane[i].pos = I915_READ(DSPPOS(i));
10716 }
ca291363
PZ		 10717 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
10718 error->plane[i].addr = I915_READ(DSPADDR(i));
c4a1d9e4
CW		 10719 if (INTEL_INFO(dev)->gen >= 4) {
10720 error->plane[i].surface = I915_READ(DSPSURF(i));
10721 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
10722 }
10723
c4a1d9e4 10724 error->pipe[i].source = I915_READ(PIPESRC(i));
63b66e5b
CW		 10725 }
10726
10727 error->num_transcoders = INTEL_INFO(dev)->num_pipes;
10728 if (HAS_DDI(dev_priv->dev))
10729 error->num_transcoders++; /* Account for eDP. */
10730
10731 for (i = 0; i < error->num_transcoders; i++) {
10732 enum transcoder cpu_transcoder = transcoders[i];
10733
10734 error->transcoder[i].cpu_transcoder = cpu_transcoder;
10735
10736 error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder));
10737 error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
10738 error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder));
10739 error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder));
10740 error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
10741 error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder));
10742 error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder));
c4a1d9e4
CW		 10743 }
10744
12d217c7
PZ		 10745 /* In the code above we read the registers without checking if the power
10746 * well was on, so here we have to clear the FPGA_DBG_RM_NOCLAIM bit to
10747 * prevent the next I915_WRITE from detecting it and printing an error
10748 * message. */
907b28c5 10749 intel_uncore_clear_errors(dev);
12d217c7 10750
c4a1d9e4
CW		 10751 return error;
10752}
10753
edc3d884
MK		 10754#define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
10755
c4a1d9e4 10756void
edc3d884 10757intel_display_print_error_state(struct drm_i915_error_state_buf *m,
c4a1d9e4
CW		 10758 struct drm_device *dev,
10759 struct intel_display_error_state *error)
10760{
10761 int i;
10762
63b66e5b
CW		 10763 if (!error)
10764 return;
10765
edc3d884 10766 err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
ff57f1b0 10767 if (HAS_POWER_WELL(dev))
edc3d884 10768 err_printf(m, "PWR_WELL_CTL2: %08x\n",
ff57f1b0 10769 error->power_well_driver);
52331309 10770 for_each_pipe(i) {
edc3d884 10771 err_printf(m, "Pipe [%d]:\n", i);
edc3d884 10772 err_printf(m, " SRC: %08x\n", error->pipe[i].source);
edc3d884
MK		 10773
10774 err_printf(m, "Plane [%d]:\n", i);
10775 err_printf(m, " CNTR: %08x\n", error->plane[i].control);
10776 err_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
80ca378b 10777 if (INTEL_INFO(dev)->gen <= 3) {
edc3d884
MK		 10778 err_printf(m, " SIZE: %08x\n", error->plane[i].size);
10779 err_printf(m, " POS: %08x\n", error->plane[i].pos);
80ca378b 10780 }
4b71a570 10781 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
edc3d884 10782 err_printf(m, " ADDR: %08x\n", error->plane[i].addr);
c4a1d9e4 10783 if (INTEL_INFO(dev)->gen >= 4) {
edc3d884
MK		 10784 err_printf(m, " SURF: %08x\n", error->plane[i].surface);
10785 err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
c4a1d9e4
CW		 10786 }
10787
edc3d884
MK		 10788 err_printf(m, "Cursor [%d]:\n", i);
10789 err_printf(m, " CNTR: %08x\n", error->cursor[i].control);
10790 err_printf(m, " POS: %08x\n", error->cursor[i].position);
10791 err_printf(m, " BASE: %08x\n", error->cursor[i].base);
c4a1d9e4 10792 }
63b66e5b
CW		 10793
10794 for (i = 0; i < error->num_transcoders; i++) {
10795 err_printf(m, " CPU transcoder: %c\n",
10796 transcoder_name(error->transcoder[i].cpu_transcoder));
10797 err_printf(m, " CONF: %08x\n", error->transcoder[i].conf);
10798 err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal);
10799 err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank);
10800 err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync);
10801 err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal);
10802 err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank);
10803 err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync);
10804 }
c4a1d9e4 10805}
Linux kernel - Deliverables
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