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drm/i915: set proper DPIO post divider for VGA on VLV v4
[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / i915 / intel_display.c
CommitLineData
79e53945
JB		 1/*
2 * Copyright © 2006-2007 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Eric Anholt <eric@anholt.net>
25 */
26
618563e3 27#include <linux/dmi.h>
c1c7af60
JB		 28#include <linux/module.h>
29#include <linux/input.h>
79e53945 30#include <linux/i2c.h>
7662c8bd 31#include <linux/kernel.h>
5a0e3ad6 32#include <linux/slab.h>
9cce37f4 33#include <linux/vgaarb.h>
e0dac65e 34#include <drm/drm_edid.h>
760285e7 35#include <drm/drmP.h>
79e53945 36#include "intel_drv.h"
760285e7 37#include <drm/i915_drm.h>
79e53945 38#include "i915_drv.h"
e5510fac 39#include "i915_trace.h"
760285e7
DH		 40#include <drm/drm_dp_helper.h>
41#include <drm/drm_crtc_helper.h>
c0f372b3 42#include <linux/dma_remapping.h>
79e53945 43
0206e353 44bool intel_pipe_has_type(struct drm_crtc *crtc, int type);
3dec0095 45static void intel_increase_pllclock(struct drm_crtc *crtc);
6b383a7f 46static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on);
79e53945 47
79e53945 48typedef struct {
0206e353 49 int min, max;
79e53945
JB		 50} intel_range_t;
51
52typedef struct {
0206e353
AJ		 53 int dot_limit;
54 int p2_slow, p2_fast;
79e53945
JB		 55} intel_p2_t;
56
57#define INTEL_P2_NUM 2
d4906093
ML		 58typedef struct intel_limit intel_limit_t;
59struct intel_limit {
0206e353
AJ		 60 intel_range_t dot, vco, n, m, m1, m2, p, p1;
61 intel_p2_t p2;
f4808ab8
VS		 62 /**
63 * find_pll() - Find the best values for the PLL
64 * @limit: limits for the PLL
65 * @crtc: current CRTC
66 * @target: target frequency in kHz
67 * @refclk: reference clock frequency in kHz
68 * @match_clock: if provided, @best_clock P divider must
69 * match the P divider from @match_clock
70 * used for LVDS downclocking
71 * @best_clock: best PLL values found
72 *
73 * Returns true on success, false on failure.
74 */
75 bool (*find_pll)(const intel_limit_t *limit,
76 struct drm_crtc *crtc,
77 int target, int refclk,
78 intel_clock_t *match_clock,
79 intel_clock_t *best_clock);
d4906093 80};
79e53945 81
2377b741
JB		 82/* FDI */
83#define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */
84
d2acd215
DV		 85int
86intel_pch_rawclk(struct drm_device *dev)
87{
88 struct drm_i915_private *dev_priv = dev->dev_private;
89
90 WARN_ON(!HAS_PCH_SPLIT(dev));
91
92 return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK;
93}
94
d4906093
ML		 95static bool
96intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
cec2f356
SP		 97 int target, int refclk, intel_clock_t *match_clock,
98 intel_clock_t *best_clock);
d4906093
ML		 99static bool
100intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
cec2f356
SP		 101 int target, int refclk, intel_clock_t *match_clock,
102 intel_clock_t *best_clock);
79e53945 103
a0c4da24
JB		 104static bool
105intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc,
106 int target, int refclk, intel_clock_t *match_clock,
107 intel_clock_t *best_clock);
108
021357ac
CW		 109static inline u32 /* units of 100MHz */
110intel_fdi_link_freq(struct drm_device *dev)
111{
8b99e68c
CW		 112 if (IS_GEN5(dev)) {
113 struct drm_i915_private *dev_priv = dev->dev_private;
114 return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2;
115 } else
116 return 27;
021357ac
CW		 117}
118
e4b36699 119static const intel_limit_t intel_limits_i8xx_dvo = {
0206e353
AJ		 120 .dot = { .min = 25000, .max = 350000 },
121 .vco = { .min = 930000, .max = 1400000 },
122 .n = { .min = 3, .max = 16 },
123 .m = { .min = 96, .max = 140 },
124 .m1 = { .min = 18, .max = 26 },
125 .m2 = { .min = 6, .max = 16 },
126 .p = { .min = 4, .max = 128 },
127 .p1 = { .min = 2, .max = 33 },
273e27ca
EA		 128 .p2 = { .dot_limit = 165000,
129 .p2_slow = 4, .p2_fast = 2 },
d4906093 130 .find_pll = intel_find_best_PLL,
e4b36699
KP		 131};
132
133static const intel_limit_t intel_limits_i8xx_lvds = {
0206e353
AJ		 134 .dot = { .min = 25000, .max = 350000 },
135 .vco = { .min = 930000, .max = 1400000 },
136 .n = { .min = 3, .max = 16 },
137 .m = { .min = 96, .max = 140 },
138 .m1 = { .min = 18, .max = 26 },
139 .m2 = { .min = 6, .max = 16 },
140 .p = { .min = 4, .max = 128 },
141 .p1 = { .min = 1, .max = 6 },
273e27ca
EA		 142 .p2 = { .dot_limit = 165000,
143 .p2_slow = 14, .p2_fast = 7 },
d4906093 144 .find_pll = intel_find_best_PLL,
e4b36699 145};
273e27ca 146
e4b36699 147static const intel_limit_t intel_limits_i9xx_sdvo = {
0206e353
AJ		 148 .dot = { .min = 20000, .max = 400000 },
149 .vco = { .min = 1400000, .max = 2800000 },
150 .n = { .min = 1, .max = 6 },
151 .m = { .min = 70, .max = 120 },
4f7dfb67
PJ		 152 .m1 = { .min = 8, .max = 18 },
153 .m2 = { .min = 3, .max = 7 },
0206e353
AJ		 154 .p = { .min = 5, .max = 80 },
155 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 156 .p2 = { .dot_limit = 200000,
157 .p2_slow = 10, .p2_fast = 5 },
d4906093 158 .find_pll = intel_find_best_PLL,
e4b36699
KP		 159};
160
161static const intel_limit_t intel_limits_i9xx_lvds = {
0206e353
AJ		 162 .dot = { .min = 20000, .max = 400000 },
163 .vco = { .min = 1400000, .max = 2800000 },
164 .n = { .min = 1, .max = 6 },
165 .m = { .min = 70, .max = 120 },
53a7d2d1
PJ		 166 .m1 = { .min = 8, .max = 18 },
167 .m2 = { .min = 3, .max = 7 },
0206e353
AJ		 168 .p = { .min = 7, .max = 98 },
169 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 170 .p2 = { .dot_limit = 112000,
171 .p2_slow = 14, .p2_fast = 7 },
d4906093 172 .find_pll = intel_find_best_PLL,
e4b36699
KP		 173};
174
273e27ca 175
e4b36699 176static const intel_limit_t intel_limits_g4x_sdvo = {
273e27ca
EA		 177 .dot = { .min = 25000, .max = 270000 },
178 .vco = { .min = 1750000, .max = 3500000},
179 .n = { .min = 1, .max = 4 },
180 .m = { .min = 104, .max = 138 },
181 .m1 = { .min = 17, .max = 23 },
182 .m2 = { .min = 5, .max = 11 },
183 .p = { .min = 10, .max = 30 },
184 .p1 = { .min = 1, .max = 3},
185 .p2 = { .dot_limit = 270000,
186 .p2_slow = 10,
187 .p2_fast = 10
044c7c41 188 },
d4906093 189 .find_pll = intel_g4x_find_best_PLL,
e4b36699
KP		 190};
191
192static const intel_limit_t intel_limits_g4x_hdmi = {
273e27ca
EA		 193 .dot = { .min = 22000, .max = 400000 },
194 .vco = { .min = 1750000, .max = 3500000},
195 .n = { .min = 1, .max = 4 },
196 .m = { .min = 104, .max = 138 },
197 .m1 = { .min = 16, .max = 23 },
198 .m2 = { .min = 5, .max = 11 },
199 .p = { .min = 5, .max = 80 },
200 .p1 = { .min = 1, .max = 8},
201 .p2 = { .dot_limit = 165000,
202 .p2_slow = 10, .p2_fast = 5 },
d4906093 203 .find_pll = intel_g4x_find_best_PLL,
e4b36699
KP		 204};
205
206static const intel_limit_t intel_limits_g4x_single_channel_lvds = {
273e27ca
EA		 207 .dot = { .min = 20000, .max = 115000 },
208 .vco = { .min = 1750000, .max = 3500000 },
209 .n = { .min = 1, .max = 3 },
210 .m = { .min = 104, .max = 138 },
211 .m1 = { .min = 17, .max = 23 },
212 .m2 = { .min = 5, .max = 11 },
213 .p = { .min = 28, .max = 112 },
214 .p1 = { .min = 2, .max = 8 },
215 .p2 = { .dot_limit = 0,
216 .p2_slow = 14, .p2_fast = 14
044c7c41 217 },
d4906093 218 .find_pll = intel_g4x_find_best_PLL,
e4b36699
KP		 219};
220
221static const intel_limit_t intel_limits_g4x_dual_channel_lvds = {
273e27ca
EA		 222 .dot = { .min = 80000, .max = 224000 },
223 .vco = { .min = 1750000, .max = 3500000 },
224 .n = { .min = 1, .max = 3 },
225 .m = { .min = 104, .max = 138 },
226 .m1 = { .min = 17, .max = 23 },
227 .m2 = { .min = 5, .max = 11 },
228 .p = { .min = 14, .max = 42 },
229 .p1 = { .min = 2, .max = 6 },
230 .p2 = { .dot_limit = 0,
231 .p2_slow = 7, .p2_fast = 7
044c7c41 232 },
d4906093 233 .find_pll = intel_g4x_find_best_PLL,
e4b36699
KP		 234};
235
f2b115e6 236static const intel_limit_t intel_limits_pineview_sdvo = {
0206e353
AJ		 237 .dot = { .min = 20000, .max = 400000},
238 .vco = { .min = 1700000, .max = 3500000 },
273e27ca 239 /* Pineview's Ncounter is a ring counter */
0206e353
AJ		 240 .n = { .min = 3, .max = 6 },
241 .m = { .min = 2, .max = 256 },
273e27ca 242 /* Pineview only has one combined m divider, which we treat as m2. */
0206e353
AJ		 243 .m1 = { .min = 0, .max = 0 },
244 .m2 = { .min = 0, .max = 254 },
245 .p = { .min = 5, .max = 80 },
246 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 247 .p2 = { .dot_limit = 200000,
248 .p2_slow = 10, .p2_fast = 5 },
6115707b 249 .find_pll = intel_find_best_PLL,
e4b36699
KP		 250};
251
f2b115e6 252static const intel_limit_t intel_limits_pineview_lvds = {
0206e353
AJ		 253 .dot = { .min = 20000, .max = 400000 },
254 .vco = { .min = 1700000, .max = 3500000 },
255 .n = { .min = 3, .max = 6 },
256 .m = { .min = 2, .max = 256 },
257 .m1 = { .min = 0, .max = 0 },
258 .m2 = { .min = 0, .max = 254 },
259 .p = { .min = 7, .max = 112 },
260 .p1 = { .min = 1, .max = 8 },
273e27ca
EA		 261 .p2 = { .dot_limit = 112000,
262 .p2_slow = 14, .p2_fast = 14 },
6115707b 263 .find_pll = intel_find_best_PLL,
e4b36699
KP		 264};
265
273e27ca
EA		 266/* Ironlake / Sandybridge
267 *
268 * We calculate clock using (register_value + 2) for N/M1/M2, so here
269 * the range value for them is (actual_value - 2).
270 */
b91ad0ec 271static const intel_limit_t intel_limits_ironlake_dac = {
273e27ca
EA		 272 .dot = { .min = 25000, .max = 350000 },
273 .vco = { .min = 1760000, .max = 3510000 },
274 .n = { .min = 1, .max = 5 },
275 .m = { .min = 79, .max = 127 },
276 .m1 = { .min = 12, .max = 22 },
277 .m2 = { .min = 5, .max = 9 },
278 .p = { .min = 5, .max = 80 },
279 .p1 = { .min = 1, .max = 8 },
280 .p2 = { .dot_limit = 225000,
281 .p2_slow = 10, .p2_fast = 5 },
4547668a 282 .find_pll = intel_g4x_find_best_PLL,
e4b36699
KP		 283};
284
b91ad0ec 285static const intel_limit_t intel_limits_ironlake_single_lvds = {
273e27ca
EA		 286 .dot = { .min = 25000, .max = 350000 },
287 .vco = { .min = 1760000, .max = 3510000 },
288 .n = { .min = 1, .max = 3 },
289 .m = { .min = 79, .max = 118 },
290 .m1 = { .min = 12, .max = 22 },
291 .m2 = { .min = 5, .max = 9 },
292 .p = { .min = 28, .max = 112 },
293 .p1 = { .min = 2, .max = 8 },
294 .p2 = { .dot_limit = 225000,
295 .p2_slow = 14, .p2_fast = 14 },
b91ad0ec
ZW		 296 .find_pll = intel_g4x_find_best_PLL,
297};
298
299static const intel_limit_t intel_limits_ironlake_dual_lvds = {
273e27ca
EA		 300 .dot = { .min = 25000, .max = 350000 },
301 .vco = { .min = 1760000, .max = 3510000 },
302 .n = { .min = 1, .max = 3 },
303 .m = { .min = 79, .max = 127 },
304 .m1 = { .min = 12, .max = 22 },
305 .m2 = { .min = 5, .max = 9 },
306 .p = { .min = 14, .max = 56 },
307 .p1 = { .min = 2, .max = 8 },
308 .p2 = { .dot_limit = 225000,
309 .p2_slow = 7, .p2_fast = 7 },
b91ad0ec
ZW		 310 .find_pll = intel_g4x_find_best_PLL,
311};
312
273e27ca 313/* LVDS 100mhz refclk limits. */
b91ad0ec 314static const intel_limit_t intel_limits_ironlake_single_lvds_100m = {
273e27ca
EA		 315 .dot = { .min = 25000, .max = 350000 },
316 .vco = { .min = 1760000, .max = 3510000 },
317 .n = { .min = 1, .max = 2 },
318 .m = { .min = 79, .max = 126 },
319 .m1 = { .min = 12, .max = 22 },
320 .m2 = { .min = 5, .max = 9 },
321 .p = { .min = 28, .max = 112 },
0206e353 322 .p1 = { .min = 2, .max = 8 },
273e27ca
EA		 323 .p2 = { .dot_limit = 225000,
324 .p2_slow = 14, .p2_fast = 14 },
b91ad0ec
ZW		 325 .find_pll = intel_g4x_find_best_PLL,
326};
327
328static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = {
273e27ca
EA		 329 .dot = { .min = 25000, .max = 350000 },
330 .vco = { .min = 1760000, .max = 3510000 },
331 .n = { .min = 1, .max = 3 },
332 .m = { .min = 79, .max = 126 },
333 .m1 = { .min = 12, .max = 22 },
334 .m2 = { .min = 5, .max = 9 },
335 .p = { .min = 14, .max = 42 },
0206e353 336 .p1 = { .min = 2, .max = 6 },
273e27ca
EA		 337 .p2 = { .dot_limit = 225000,
338 .p2_slow = 7, .p2_fast = 7 },
4547668a
ZY		 339 .find_pll = intel_g4x_find_best_PLL,
340};
341
a0c4da24
JB		 342static const intel_limit_t intel_limits_vlv_dac = {
343 .dot = { .min = 25000, .max = 270000 },
344 .vco = { .min = 4000000, .max = 6000000 },
345 .n = { .min = 1, .max = 7 },
346 .m = { .min = 22, .max = 450 }, /* guess */
347 .m1 = { .min = 2, .max = 3 },
348 .m2 = { .min = 11, .max = 156 },
349 .p = { .min = 10, .max = 30 },
75e53986 350 .p1 = { .min = 1, .max = 3 },
a0c4da24
JB		 351 .p2 = { .dot_limit = 270000,
352 .p2_slow = 2, .p2_fast = 20 },
353 .find_pll = intel_vlv_find_best_pll,
354};
355
356static const intel_limit_t intel_limits_vlv_hdmi = {
75e53986
DV		 357 .dot = { .min = 25000, .max = 270000 },
358 .vco = { .min = 4000000, .max = 6000000 },
a0c4da24
JB		 359 .n = { .min = 1, .max = 7 },
360 .m = { .min = 60, .max = 300 }, /* guess */
361 .m1 = { .min = 2, .max = 3 },
362 .m2 = { .min = 11, .max = 156 },
363 .p = { .min = 10, .max = 30 },
364 .p1 = { .min = 2, .max = 3 },
365 .p2 = { .dot_limit = 270000,
366 .p2_slow = 2, .p2_fast = 20 },
367 .find_pll = intel_vlv_find_best_pll,
368};
369
370static const intel_limit_t intel_limits_vlv_dp = {
74a4dd2e
VP		 371 .dot = { .min = 25000, .max = 270000 },
372 .vco = { .min = 4000000, .max = 6000000 },
a0c4da24 373 .n = { .min = 1, .max = 7 },
74a4dd2e 374 .m = { .min = 22, .max = 450 },
a0c4da24
JB		 375 .m1 = { .min = 2, .max = 3 },
376 .m2 = { .min = 11, .max = 156 },
377 .p = { .min = 10, .max = 30 },
75e53986 378 .p1 = { .min = 1, .max = 3 },
a0c4da24
JB		 379 .p2 = { .dot_limit = 270000,
380 .p2_slow = 2, .p2_fast = 20 },
381 .find_pll = intel_vlv_find_best_pll,
382};
383
57f350b6
JB		 384u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg)
385{
09153000 386 WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
57f350b6 387
57f350b6
JB		 388 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) {
389 DRM_ERROR("DPIO idle wait timed out\n");
09153000 390 return 0;
57f350b6
JB		 391 }
392
393 I915_WRITE(DPIO_REG, reg);
394 I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_READ | DPIO_PORTID |
395 DPIO_BYTE);
396 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) {
397 DRM_ERROR("DPIO read wait timed out\n");
09153000 398 return 0;
57f350b6 399 }
57f350b6 400
09153000 401 return I915_READ(DPIO_DATA);
57f350b6
JB		 402}
403
e2fa6fba 404void intel_dpio_write(struct drm_i915_private *dev_priv, int reg, u32 val)
a0c4da24 405{
09153000 406 WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
a0c4da24 407
a0c4da24
JB		 408 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) {
409 DRM_ERROR("DPIO idle wait timed out\n");
09153000 410 return;
a0c4da24
JB		 411 }
412
413 I915_WRITE(DPIO_DATA, val);
414 I915_WRITE(DPIO_REG, reg);
415 I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_WRITE | DPIO_PORTID |
416 DPIO_BYTE);
417 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100))
418 DRM_ERROR("DPIO write wait timed out\n");
a0c4da24
JB		 419}
420
1b894b59
CW		 421static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
422 int refclk)
2c07245f 423{
b91ad0ec 424 struct drm_device *dev = crtc->dev;
2c07245f 425 const intel_limit_t *limit;
b91ad0ec
ZW		 426
427 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
1974cad0 428 if (intel_is_dual_link_lvds(dev)) {
1b894b59 429 if (refclk == 100000)
b91ad0ec
ZW		 430 limit = &intel_limits_ironlake_dual_lvds_100m;
431 else
432 limit = &intel_limits_ironlake_dual_lvds;
433 } else {
1b894b59 434 if (refclk == 100000)
b91ad0ec
ZW		 435 limit = &intel_limits_ironlake_single_lvds_100m;
436 else
437 limit = &intel_limits_ironlake_single_lvds;
438 }
c6bb3538 439 } else
b91ad0ec 440 limit = &intel_limits_ironlake_dac;
2c07245f
ZW		 441
442 return limit;
443}
444
044c7c41
ML		 445static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
446{
447 struct drm_device *dev = crtc->dev;
044c7c41
ML		 448 const intel_limit_t *limit;
449
450 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
1974cad0 451 if (intel_is_dual_link_lvds(dev))
e4b36699 452 limit = &intel_limits_g4x_dual_channel_lvds;
044c7c41 453 else
e4b36699 454 limit = &intel_limits_g4x_single_channel_lvds;
044c7c41
ML		 455 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
456 intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
e4b36699 457 limit = &intel_limits_g4x_hdmi;
044c7c41 458 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
e4b36699 459 limit = &intel_limits_g4x_sdvo;
044c7c41 460 } else /* The option is for other outputs */
e4b36699 461 limit = &intel_limits_i9xx_sdvo;
044c7c41
ML		 462
463 return limit;
464}
465
1b894b59 466static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
79e53945
JB		 467{
468 struct drm_device *dev = crtc->dev;
469 const intel_limit_t *limit;
470
bad720ff 471 if (HAS_PCH_SPLIT(dev))
1b894b59 472 limit = intel_ironlake_limit(crtc, refclk);
2c07245f 473 else if (IS_G4X(dev)) {
044c7c41 474 limit = intel_g4x_limit(crtc);
f2b115e6 475 } else if (IS_PINEVIEW(dev)) {
2177832f 476 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
f2b115e6 477 limit = &intel_limits_pineview_lvds;
2177832f 478 else
f2b115e6 479 limit = &intel_limits_pineview_sdvo;
a0c4da24
JB		 480 } else if (IS_VALLEYVIEW(dev)) {
481 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG))
482 limit = &intel_limits_vlv_dac;
483 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI))
484 limit = &intel_limits_vlv_hdmi;
485 else
486 limit = &intel_limits_vlv_dp;
a6c45cf0
CW		 487 } else if (!IS_GEN2(dev)) {
488 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
489 limit = &intel_limits_i9xx_lvds;
490 else
491 limit = &intel_limits_i9xx_sdvo;
79e53945
JB		 492 } else {
493 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
e4b36699 494 limit = &intel_limits_i8xx_lvds;
79e53945 495 else
e4b36699 496 limit = &intel_limits_i8xx_dvo;
79e53945
JB		 497 }
498 return limit;
499}
500
f2b115e6
AJ		 501/* m1 is reserved as 0 in Pineview, n is a ring counter */
502static void pineview_clock(int refclk, intel_clock_t *clock)
79e53945 503{
2177832f
SL		 504 clock->m = clock->m2 + 2;
505 clock->p = clock->p1 * clock->p2;
506 clock->vco = refclk * clock->m / clock->n;
507 clock->dot = clock->vco / clock->p;
508}
509
7429e9d4
DV		 510static uint32_t i9xx_dpll_compute_m(struct dpll *dpll)
511{
512 return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
513}
514
2177832f
SL		 515static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock)
516{
f2b115e6
AJ		 517 if (IS_PINEVIEW(dev)) {
518 pineview_clock(refclk, clock);
2177832f
SL		 519 return;
520 }
7429e9d4 521 clock->m = i9xx_dpll_compute_m(clock);
79e53945
JB		 522 clock->p = clock->p1 * clock->p2;
523 clock->vco = refclk * clock->m / (clock->n + 2);
524 clock->dot = clock->vco / clock->p;
525}
526
79e53945
JB		 527/**
528 * Returns whether any output on the specified pipe is of the specified type
529 */
4ef69c7a 530bool intel_pipe_has_type(struct drm_crtc *crtc, int type)
79e53945 531{
4ef69c7a 532 struct drm_device *dev = crtc->dev;
4ef69c7a
CW		 533 struct intel_encoder *encoder;
534
6c2b7c12
DV		 535 for_each_encoder_on_crtc(dev, crtc, encoder)
536 if (encoder->type == type)
4ef69c7a
CW		 537 return true;
538
539 return false;
79e53945
JB		 540}
541
7c04d1d9 542#define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
79e53945
JB		 543/**
544 * Returns whether the given set of divisors are valid for a given refclk with
545 * the given connectors.
546 */
547
1b894b59
CW		 548static bool intel_PLL_is_valid(struct drm_device *dev,
549 const intel_limit_t *limit,
550 const intel_clock_t *clock)
79e53945 551{
79e53945 552 if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
0206e353 553 INTELPllInvalid("p1 out of range\n");
79e53945 554 if (clock->p < limit->p.min || limit->p.max < clock->p)
0206e353 555 INTELPllInvalid("p out of range\n");
79e53945 556 if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
0206e353 557 INTELPllInvalid("m2 out of range\n");
79e53945 558 if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
0206e353 559 INTELPllInvalid("m1 out of range\n");
f2b115e6 560 if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev))
0206e353 561 INTELPllInvalid("m1 <= m2\n");
79e53945 562 if (clock->m < limit->m.min || limit->m.max < clock->m)
0206e353 563 INTELPllInvalid("m out of range\n");
79e53945 564 if (clock->n < limit->n.min || limit->n.max < clock->n)
0206e353 565 INTELPllInvalid("n out of range\n");
79e53945 566 if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
0206e353 567 INTELPllInvalid("vco out of range\n");
79e53945
JB		 568 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
569 * connector, etc., rather than just a single range.
570 */
571 if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
0206e353 572 INTELPllInvalid("dot out of range\n");
79e53945
JB		 573
574 return true;
575}
576
d4906093
ML		 577static bool
578intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
cec2f356
SP		 579 int target, int refclk, intel_clock_t *match_clock,
580 intel_clock_t *best_clock)
d4906093 581
79e53945
JB		 582{
583 struct drm_device *dev = crtc->dev;
79e53945 584 intel_clock_t clock;
79e53945
JB		 585 int err = target;
586
a210b028 587 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
79e53945 588 /*
a210b028
DV		 589 * For LVDS just rely on its current settings for dual-channel.
590 * We haven't figured out how to reliably set up different
591 * single/dual channel state, if we even can.
79e53945 592 */
1974cad0 593 if (intel_is_dual_link_lvds(dev))
79e53945
JB		 594 clock.p2 = limit->p2.p2_fast;
595 else
596 clock.p2 = limit->p2.p2_slow;
597 } else {
598 if (target < limit->p2.dot_limit)
599 clock.p2 = limit->p2.p2_slow;
600 else
601 clock.p2 = limit->p2.p2_fast;
602 }
603
0206e353 604 memset(best_clock, 0, sizeof(*best_clock));
79e53945 605
42158660
ZY		 606 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
607 clock.m1++) {
608 for (clock.m2 = limit->m2.min;
609 clock.m2 <= limit->m2.max; clock.m2++) {
f2b115e6
AJ		 610 /* m1 is always 0 in Pineview */
611 if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev))
42158660
ZY		 612 break;
613 for (clock.n = limit->n.min;
614 clock.n <= limit->n.max; clock.n++) {
615 for (clock.p1 = limit->p1.min;
616 clock.p1 <= limit->p1.max; clock.p1++) {
79e53945
JB		 617 int this_err;
618
2177832f 619 intel_clock(dev, refclk, &clock);
1b894b59
CW		 620 if (!intel_PLL_is_valid(dev, limit,
621 &clock))
79e53945 622 continue;
cec2f356
SP		 623 if (match_clock &&
624 clock.p != match_clock->p)
625 continue;
79e53945
JB		 626
627 this_err = abs(clock.dot - target);
628 if (this_err < err) {
629 *best_clock = clock;
630 err = this_err;
631 }
632 }
633 }
634 }
635 }
636
637 return (err != target);
638}
639
d4906093
ML		 640static bool
641intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
cec2f356
SP		 642 int target, int refclk, intel_clock_t *match_clock,
643 intel_clock_t *best_clock)
d4906093
ML		 644{
645 struct drm_device *dev = crtc->dev;
d4906093
ML		 646 intel_clock_t clock;
647 int max_n;
648 bool found;
6ba770dc
AJ		 649 /* approximately equals target * 0.00585 */
650 int err_most = (target >> 8) + (target >> 9);
d4906093
ML		 651 found = false;
652
653 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
4547668a
ZY		 654 int lvds_reg;
655
c619eed4 656 if (HAS_PCH_SPLIT(dev))
4547668a
ZY		 657 lvds_reg = PCH_LVDS;
658 else
659 lvds_reg = LVDS;
1974cad0 660 if (intel_is_dual_link_lvds(dev))
d4906093
ML		 661 clock.p2 = limit->p2.p2_fast;
662 else
663 clock.p2 = limit->p2.p2_slow;
664 } else {
665 if (target < limit->p2.dot_limit)
666 clock.p2 = limit->p2.p2_slow;
667 else
668 clock.p2 = limit->p2.p2_fast;
669 }
670
671 memset(best_clock, 0, sizeof(*best_clock));
672 max_n = limit->n.max;
f77f13e2 673 /* based on hardware requirement, prefer smaller n to precision */
d4906093 674 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
f77f13e2 675 /* based on hardware requirement, prefere larger m1,m2 */
d4906093
ML		 676 for (clock.m1 = limit->m1.max;
677 clock.m1 >= limit->m1.min; clock.m1--) {
678 for (clock.m2 = limit->m2.max;
679 clock.m2 >= limit->m2.min; clock.m2--) {
680 for (clock.p1 = limit->p1.max;
681 clock.p1 >= limit->p1.min; clock.p1--) {
682 int this_err;
683
2177832f 684 intel_clock(dev, refclk, &clock);
1b894b59
CW		 685 if (!intel_PLL_is_valid(dev, limit,
686 &clock))
d4906093 687 continue;
1b894b59
CW		 688
689 this_err = abs(clock.dot - target);
d4906093
ML		 690 if (this_err < err_most) {
691 *best_clock = clock;
692 err_most = this_err;
693 max_n = clock.n;
694 found = true;
695 }
696 }
697 }
698 }
699 }
2c07245f
ZW		 700 return found;
701}
702
a0c4da24
JB		 703static bool
704intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc,
705 int target, int refclk, intel_clock_t *match_clock,
706 intel_clock_t *best_clock)
707{
708 u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2;
709 u32 m, n, fastclk;
710 u32 updrate, minupdate, fracbits, p;
711 unsigned long bestppm, ppm, absppm;
712 int dotclk, flag;
713
af447bd3 714 flag = 0;
a0c4da24
JB		 715 dotclk = target * 1000;
716 bestppm = 1000000;
717 ppm = absppm = 0;
718 fastclk = dotclk / (2*100);
719 updrate = 0;
720 minupdate = 19200;
721 fracbits = 1;
722 n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0;
723 bestm1 = bestm2 = bestp1 = bestp2 = 0;
724
725 /* based on hardware requirement, prefer smaller n to precision */
726 for (n = limit->n.min; n <= ((refclk) / minupdate); n++) {
727 updrate = refclk / n;
728 for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) {
729 for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) {
730 if (p2 > 10)
731 p2 = p2 - 1;
732 p = p1 * p2;
733 /* based on hardware requirement, prefer bigger m1,m2 values */
734 for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) {
735 m2 = (((2*(fastclk * p * n / m1 )) +
736 refclk) / (2*refclk));
737 m = m1 * m2;
738 vco = updrate * m;
739 if (vco >= limit->vco.min && vco < limit->vco.max) {
740 ppm = 1000000 * ((vco / p) - fastclk) / fastclk;
741 absppm = (ppm > 0) ? ppm : (-ppm);
742 if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) {
743 bestppm = 0;
744 flag = 1;
745 }
746 if (absppm < bestppm - 10) {
747 bestppm = absppm;
748 flag = 1;
749 }
750 if (flag) {
751 bestn = n;
752 bestm1 = m1;
753 bestm2 = m2;
754 bestp1 = p1;
755 bestp2 = p2;
756 flag = 0;
757 }
758 }
759 }
760 }
761 }
762 }
763 best_clock->n = bestn;
764 best_clock->m1 = bestm1;
765 best_clock->m2 = bestm2;
766 best_clock->p1 = bestp1;
767 best_clock->p2 = bestp2;
768
769 return true;
770}
a4fc5ed6 771
a5c961d1
PZ		 772enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
773 enum pipe pipe)
774{
775 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
776 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
777
3b117c8f 778 return intel_crtc->config.cpu_transcoder;
a5c961d1
PZ		 779}
780
a928d536
PZ		 781static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe)
782{
783 struct drm_i915_private *dev_priv = dev->dev_private;
784 u32 frame, frame_reg = PIPEFRAME(pipe);
785
786 frame = I915_READ(frame_reg);
787
788 if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50))
789 DRM_DEBUG_KMS("vblank wait timed out\n");
790}
791
9d0498a2
JB		 792/**
793 * intel_wait_for_vblank - wait for vblank on a given pipe
794 * @dev: drm device
795 * @pipe: pipe to wait for
796 *
797 * Wait for vblank to occur on a given pipe. Needed for various bits of
798 * mode setting code.
799 */
800void intel_wait_for_vblank(struct drm_device *dev, int pipe)
79e53945 801{
9d0498a2 802 struct drm_i915_private *dev_priv = dev->dev_private;
9db4a9c7 803 int pipestat_reg = PIPESTAT(pipe);
9d0498a2 804
a928d536
PZ		 805 if (INTEL_INFO(dev)->gen >= 5) {
806 ironlake_wait_for_vblank(dev, pipe);
807 return;
808 }
809
300387c0
CW		 810 /* Clear existing vblank status. Note this will clear any other
811 * sticky status fields as well.
812 *
813 * This races with i915_driver_irq_handler() with the result
814 * that either function could miss a vblank event. Here it is not
815 * fatal, as we will either wait upon the next vblank interrupt or
816 * timeout. Generally speaking intel_wait_for_vblank() is only
817 * called during modeset at which time the GPU should be idle and
818 * should *not* be performing page flips and thus not waiting on
819 * vblanks...
820 * Currently, the result of us stealing a vblank from the irq
821 * handler is that a single frame will be skipped during swapbuffers.
822 */
823 I915_WRITE(pipestat_reg,
824 I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS);
825
9d0498a2 826 /* Wait for vblank interrupt bit to set */
481b6af3
CW		 827 if (wait_for(I915_READ(pipestat_reg) &
828 PIPE_VBLANK_INTERRUPT_STATUS,
829 50))
9d0498a2
JB		 830 DRM_DEBUG_KMS("vblank wait timed out\n");
831}
832
ab7ad7f6
KP		 833/*
834 * intel_wait_for_pipe_off - wait for pipe to turn off
9d0498a2
JB		 835 * @dev: drm device
836 * @pipe: pipe to wait for
837 *
838 * After disabling a pipe, we can't wait for vblank in the usual way,
839 * spinning on the vblank interrupt status bit, since we won't actually
840 * see an interrupt when the pipe is disabled.
841 *
ab7ad7f6
KP		 842 * On Gen4 and above:
843 * wait for the pipe register state bit to turn off
844 *
845 * Otherwise:
846 * wait for the display line value to settle (it usually
847 * ends up stopping at the start of the next frame).
58e10eb9 848 *
9d0498a2 849 */
58e10eb9 850void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
9d0498a2
JB		 851{
852 struct drm_i915_private *dev_priv = dev->dev_private;
702e7a56
PZ		 853 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
854 pipe);
ab7ad7f6
KP		 855
856 if (INTEL_INFO(dev)->gen >= 4) {
702e7a56 857 int reg = PIPECONF(cpu_transcoder);
ab7ad7f6
KP		 858
859 /* Wait for the Pipe State to go off */
58e10eb9
CW		 860 if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0,
861 100))
284637d9 862 WARN(1, "pipe_off wait timed out\n");
ab7ad7f6 863 } else {
837ba00f 864 u32 last_line, line_mask;
58e10eb9 865 int reg = PIPEDSL(pipe);
ab7ad7f6
KP		 866 unsigned long timeout = jiffies + msecs_to_jiffies(100);
867
837ba00f
PZ		 868 if (IS_GEN2(dev))
869 line_mask = DSL_LINEMASK_GEN2;
870 else
871 line_mask = DSL_LINEMASK_GEN3;
872
ab7ad7f6
KP		 873 /* Wait for the display line to settle */
874 do {
837ba00f 875 last_line = I915_READ(reg) & line_mask;
ab7ad7f6 876 mdelay(5);
837ba00f 877 } while (((I915_READ(reg) & line_mask) != last_line) &&
ab7ad7f6
KP		 878 time_after(timeout, jiffies));
879 if (time_after(jiffies, timeout))
284637d9 880 WARN(1, "pipe_off wait timed out\n");
ab7ad7f6 881 }
79e53945
JB		 882}
883
b0ea7d37
DL		 884/*
885 * ibx_digital_port_connected - is the specified port connected?
886 * @dev_priv: i915 private structure
887 * @port: the port to test
888 *
889 * Returns true if @port is connected, false otherwise.
890 */
891bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
892 struct intel_digital_port *port)
893{
894 u32 bit;
895
c36346e3
DL		 896 if (HAS_PCH_IBX(dev_priv->dev)) {
897 switch(port->port) {
898 case PORT_B:
899 bit = SDE_PORTB_HOTPLUG;
900 break;
901 case PORT_C:
902 bit = SDE_PORTC_HOTPLUG;
903 break;
904 case PORT_D:
905 bit = SDE_PORTD_HOTPLUG;
906 break;
907 default:
908 return true;
909 }
910 } else {
911 switch(port->port) {
912 case PORT_B:
913 bit = SDE_PORTB_HOTPLUG_CPT;
914 break;
915 case PORT_C:
916 bit = SDE_PORTC_HOTPLUG_CPT;
917 break;
918 case PORT_D:
919 bit = SDE_PORTD_HOTPLUG_CPT;
920 break;
921 default:
922 return true;
923 }
b0ea7d37
DL		 924 }
925
926 return I915_READ(SDEISR) & bit;
927}
928
b24e7179
JB		 929static const char *state_string(bool enabled)
930{
931 return enabled ? "on" : "off";
932}
933
934/* Only for pre-ILK configs */
935static void assert_pll(struct drm_i915_private *dev_priv,
936 enum pipe pipe, bool state)
937{
938 int reg;
939 u32 val;
940 bool cur_state;
941
942 reg = DPLL(pipe);
943 val = I915_READ(reg);
944 cur_state = !!(val & DPLL_VCO_ENABLE);
945 WARN(cur_state != state,
946 "PLL state assertion failure (expected %s, current %s)\n",
947 state_string(state), state_string(cur_state));
948}
949#define assert_pll_enabled(d, p) assert_pll(d, p, true)
950#define assert_pll_disabled(d, p) assert_pll(d, p, false)
951
040484af
JB		 952/* For ILK+ */
953static void assert_pch_pll(struct drm_i915_private *dev_priv,
92b27b08
CW		 954 struct intel_pch_pll *pll,
955 struct intel_crtc *crtc,
956 bool state)
040484af 957{
040484af
JB		 958 u32 val;
959 bool cur_state;
960
9d82aa17
ED		 961 if (HAS_PCH_LPT(dev_priv->dev)) {
962 DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
963 return;
964 }
965
92b27b08
CW		 966 if (WARN (!pll,
967 "asserting PCH PLL %s with no PLL\n", state_string(state)))
ee7b9f93 968 return;
ee7b9f93 969
92b27b08
CW		 970 val = I915_READ(pll->pll_reg);
971 cur_state = !!(val & DPLL_VCO_ENABLE);
972 WARN(cur_state != state,
973 "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n",
974 pll->pll_reg, state_string(state), state_string(cur_state), val);
975
976 /* Make sure the selected PLL is correctly attached to the transcoder */
977 if (crtc && HAS_PCH_CPT(dev_priv->dev)) {
d3ccbe86
JB		 978 u32 pch_dpll;
979
980 pch_dpll = I915_READ(PCH_DPLL_SEL);
92b27b08
CW		 981 cur_state = pll->pll_reg == _PCH_DPLL_B;
982 if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state,
4bb6f1f3
VS		 983 "PLL[%d] not attached to this transcoder %c: %08x\n",
984 cur_state, pipe_name(crtc->pipe), pch_dpll)) {
92b27b08
CW		 985 cur_state = !!(val >> (4*crtc->pipe + 3));
986 WARN(cur_state != state,
4bb6f1f3 987 "PLL[%d] not %s on this transcoder %c: %08x\n",
92b27b08
CW		 988 pll->pll_reg == _PCH_DPLL_B,
989 state_string(state),
4bb6f1f3 990 pipe_name(crtc->pipe),
92b27b08
CW		 991 val);
992 }
d3ccbe86 993 }
040484af 994}
92b27b08
CW		 995#define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true)
996#define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false)
040484af
JB		 997
998static void assert_fdi_tx(struct drm_i915_private *dev_priv,
999 enum pipe pipe, bool state)
1000{
1001 int reg;
1002 u32 val;
1003 bool cur_state;
ad80a810
PZ		 1004 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1005 pipe);
040484af 1006
affa9354
PZ		 1007 if (HAS_DDI(dev_priv->dev)) {
1008 /* DDI does not have a specific FDI_TX register */
ad80a810 1009 reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
bf507ef7 1010 val = I915_READ(reg);
ad80a810 1011 cur_state = !!(val & TRANS_DDI_FUNC_ENABLE);
bf507ef7
ED		 1012 } else {
1013 reg = FDI_TX_CTL(pipe);
1014 val = I915_READ(reg);
1015 cur_state = !!(val & FDI_TX_ENABLE);
1016 }
040484af
JB		 1017 WARN(cur_state != state,
1018 "FDI TX state assertion failure (expected %s, current %s)\n",
1019 state_string(state), state_string(cur_state));
1020}
1021#define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1022#define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1023
1024static void assert_fdi_rx(struct drm_i915_private *dev_priv,
1025 enum pipe pipe, bool state)
1026{
1027 int reg;
1028 u32 val;
1029 bool cur_state;
1030
d63fa0dc
PZ		 1031 reg = FDI_RX_CTL(pipe);
1032 val = I915_READ(reg);
1033 cur_state = !!(val & FDI_RX_ENABLE);
040484af
JB		 1034 WARN(cur_state != state,
1035 "FDI RX state assertion failure (expected %s, current %s)\n",
1036 state_string(state), state_string(cur_state));
1037}
1038#define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1039#define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1040
1041static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
1042 enum pipe pipe)
1043{
1044 int reg;
1045 u32 val;
1046
1047 /* ILK FDI PLL is always enabled */
1048 if (dev_priv->info->gen == 5)
1049 return;
1050
bf507ef7 1051 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
affa9354 1052 if (HAS_DDI(dev_priv->dev))
bf507ef7
ED		 1053 return;
1054
040484af
JB		 1055 reg = FDI_TX_CTL(pipe);
1056 val = I915_READ(reg);
1057 WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n");
1058}
1059
1060static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv,
1061 enum pipe pipe)
1062{
1063 int reg;
1064 u32 val;
1065
1066 reg = FDI_RX_CTL(pipe);
1067 val = I915_READ(reg);
1068 WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n");
1069}
1070
ea0760cf
JB		 1071static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1072 enum pipe pipe)
1073{
1074 int pp_reg, lvds_reg;
1075 u32 val;
1076 enum pipe panel_pipe = PIPE_A;
0de3b485 1077 bool locked = true;
ea0760cf
JB		 1078
1079 if (HAS_PCH_SPLIT(dev_priv->dev)) {
1080 pp_reg = PCH_PP_CONTROL;
1081 lvds_reg = PCH_LVDS;
1082 } else {
1083 pp_reg = PP_CONTROL;
1084 lvds_reg = LVDS;
1085 }
1086
1087 val = I915_READ(pp_reg);
1088 if (!(val & PANEL_POWER_ON) ||
1089 ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS))
1090 locked = false;
1091
1092 if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT)
1093 panel_pipe = PIPE_B;
1094
1095 WARN(panel_pipe == pipe && locked,
1096 "panel assertion failure, pipe %c regs locked\n",
9db4a9c7 1097 pipe_name(pipe));
ea0760cf
JB		 1098}
1099
b840d907
JB		 1100void assert_pipe(struct drm_i915_private *dev_priv,
1101 enum pipe pipe, bool state)
b24e7179
JB		 1102{
1103 int reg;
1104 u32 val;
63d7bbe9 1105 bool cur_state;
702e7a56
PZ		 1106 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1107 pipe);
b24e7179 1108
8e636784
DV		 1109 /* if we need the pipe A quirk it must be always on */
1110 if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
1111 state = true;
1112
15d199ea
PZ		 1113 if (!intel_using_power_well(dev_priv->dev) &&
1114 cpu_transcoder != TRANSCODER_EDP) {
69310161
PZ		 1115 cur_state = false;
1116 } else {
1117 reg = PIPECONF(cpu_transcoder);
1118 val = I915_READ(reg);
1119 cur_state = !!(val & PIPECONF_ENABLE);
1120 }
1121
63d7bbe9
JB		 1122 WARN(cur_state != state,
1123 "pipe %c assertion failure (expected %s, current %s)\n",
9db4a9c7 1124 pipe_name(pipe), state_string(state), state_string(cur_state));
b24e7179
JB		 1125}
1126
931872fc
CW		 1127static void assert_plane(struct drm_i915_private *dev_priv,
1128 enum plane plane, bool state)
b24e7179
JB		 1129{
1130 int reg;
1131 u32 val;
931872fc 1132 bool cur_state;
b24e7179
JB		 1133
1134 reg = DSPCNTR(plane);
1135 val = I915_READ(reg);
931872fc
CW		 1136 cur_state = !!(val & DISPLAY_PLANE_ENABLE);
1137 WARN(cur_state != state,
1138 "plane %c assertion failure (expected %s, current %s)\n",
1139 plane_name(plane), state_string(state), state_string(cur_state));
b24e7179
JB		 1140}
1141
931872fc
CW		 1142#define assert_plane_enabled(d, p) assert_plane(d, p, true)
1143#define assert_plane_disabled(d, p) assert_plane(d, p, false)
1144
b24e7179
JB		 1145static void assert_planes_disabled(struct drm_i915_private *dev_priv,
1146 enum pipe pipe)
1147{
1148 int reg, i;
1149 u32 val;
1150 int cur_pipe;
1151
19ec1358 1152 /* Planes are fixed to pipes on ILK+ */
da6ecc5d 1153 if (HAS_PCH_SPLIT(dev_priv->dev) || IS_VALLEYVIEW(dev_priv->dev)) {
28c05794
AJ		 1154 reg = DSPCNTR(pipe);
1155 val = I915_READ(reg);
1156 WARN((val & DISPLAY_PLANE_ENABLE),
1157 "plane %c assertion failure, should be disabled but not\n",
1158 plane_name(pipe));
19ec1358 1159 return;
28c05794 1160 }
19ec1358 1161
b24e7179
JB		 1162 /* Need to check both planes against the pipe */
1163 for (i = 0; i < 2; i++) {
1164 reg = DSPCNTR(i);
1165 val = I915_READ(reg);
1166 cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >>
1167 DISPPLANE_SEL_PIPE_SHIFT;
1168 WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe,
9db4a9c7
JB		 1169 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1170 plane_name(i), pipe_name(pipe));
b24e7179
JB		 1171 }
1172}
1173
19332d7a
JB		 1174static void assert_sprites_disabled(struct drm_i915_private *dev_priv,
1175 enum pipe pipe)
1176{
1177 int reg, i;
1178 u32 val;
1179
1180 if (!IS_VALLEYVIEW(dev_priv->dev))
1181 return;
1182
1183 /* Need to check both planes against the pipe */
1184 for (i = 0; i < dev_priv->num_plane; i++) {
1185 reg = SPCNTR(pipe, i);
1186 val = I915_READ(reg);
1187 WARN((val & SP_ENABLE),
06da8da2
VS		 1188 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1189 sprite_name(pipe, i), pipe_name(pipe));
19332d7a
JB		 1190 }
1191}
1192
92f2584a
JB		 1193static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
1194{
1195 u32 val;
1196 bool enabled;
1197
9d82aa17
ED		 1198 if (HAS_PCH_LPT(dev_priv->dev)) {
1199 DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n");
1200 return;
1201 }
1202
92f2584a
JB		 1203 val = I915_READ(PCH_DREF_CONTROL);
1204 enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK |
1205 DREF_SUPERSPREAD_SOURCE_MASK));
1206 WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n");
1207}
1208
ab9412ba
DV		 1209static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1210 enum pipe pipe)
92f2584a
JB		 1211{
1212 int reg;
1213 u32 val;
1214 bool enabled;
1215
ab9412ba 1216 reg = PCH_TRANSCONF(pipe);
92f2584a
JB		 1217 val = I915_READ(reg);
1218 enabled = !!(val & TRANS_ENABLE);
9db4a9c7
JB		 1219 WARN(enabled,
1220 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1221 pipe_name(pipe));
92f2584a
JB		 1222}
1223
4e634389
KP		 1224static bool dp_pipe_enabled(struct drm_i915_private *dev_priv,
1225 enum pipe pipe, u32 port_sel, u32 val)
f0575e92
KP		 1226{
1227 if ((val & DP_PORT_EN) == 0)
1228 return false;
1229
1230 if (HAS_PCH_CPT(dev_priv->dev)) {
1231 u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe);
1232 u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg);
1233 if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel)
1234 return false;
1235 } else {
1236 if ((val & DP_PIPE_MASK) != (pipe << 30))
1237 return false;
1238 }
1239 return true;
1240}
1241
1519b995
KP		 1242static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
1243 enum pipe pipe, u32 val)
1244{
dc0fa718 1245 if ((val & SDVO_ENABLE) == 0)
1519b995
KP		 1246 return false;
1247
1248 if (HAS_PCH_CPT(dev_priv->dev)) {
dc0fa718 1249 if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe))
1519b995
KP		 1250 return false;
1251 } else {
dc0fa718 1252 if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe))
1519b995
KP		 1253 return false;
1254 }
1255 return true;
1256}
1257
1258static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
1259 enum pipe pipe, u32 val)
1260{
1261 if ((val & LVDS_PORT_EN) == 0)
1262 return false;
1263
1264 if (HAS_PCH_CPT(dev_priv->dev)) {
1265 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1266 return false;
1267 } else {
1268 if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
1269 return false;
1270 }
1271 return true;
1272}
1273
1274static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
1275 enum pipe pipe, u32 val)
1276{
1277 if ((val & ADPA_DAC_ENABLE) == 0)
1278 return false;
1279 if (HAS_PCH_CPT(dev_priv->dev)) {
1280 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1281 return false;
1282 } else {
1283 if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
1284 return false;
1285 }
1286 return true;
1287}
1288
291906f1 1289static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
f0575e92 1290 enum pipe pipe, int reg, u32 port_sel)
291906f1 1291{
47a05eca 1292 u32 val = I915_READ(reg);
4e634389 1293 WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val),
291906f1 1294 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
9db4a9c7 1295 reg, pipe_name(pipe));
de9a35ab 1296
75c5da27
DV		 1297 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0
1298 && (val & DP_PIPEB_SELECT),
de9a35ab 1299 "IBX PCH dp port still using transcoder B\n");
291906f1
JB		 1300}
1301
1302static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
1303 enum pipe pipe, int reg)
1304{
47a05eca 1305 u32 val = I915_READ(reg);
b70ad586 1306 WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
23c99e77 1307 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
9db4a9c7 1308 reg, pipe_name(pipe));
de9a35ab 1309
dc0fa718 1310 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0
75c5da27 1311 && (val & SDVO_PIPE_B_SELECT),
de9a35ab 1312 "IBX PCH hdmi port still using transcoder B\n");
291906f1
JB		 1313}
1314
1315static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
1316 enum pipe pipe)
1317{
1318 int reg;
1319 u32 val;
291906f1 1320
f0575e92
KP		 1321 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B);
1322 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
1323 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
291906f1
JB		 1324
1325 reg = PCH_ADPA;
1326 val = I915_READ(reg);
b70ad586 1327 WARN(adpa_pipe_enabled(dev_priv, pipe, val),
291906f1 1328 "PCH VGA enabled on transcoder %c, should be disabled\n",
9db4a9c7 1329 pipe_name(pipe));
291906f1
JB		 1330
1331 reg = PCH_LVDS;
1332 val = I915_READ(reg);
b70ad586 1333 WARN(lvds_pipe_enabled(dev_priv, pipe, val),
291906f1 1334 "PCH LVDS enabled on transcoder %c, should be disabled\n",
9db4a9c7 1335 pipe_name(pipe));
291906f1 1336
e2debe91
PZ		 1337 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB);
1338 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC);
1339 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID);
291906f1
JB		 1340}
1341
63d7bbe9
JB		 1342/**
1343 * intel_enable_pll - enable a PLL
1344 * @dev_priv: i915 private structure
1345 * @pipe: pipe PLL to enable
1346 *
1347 * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to
1348 * make sure the PLL reg is writable first though, since the panel write
1349 * protect mechanism may be enabled.
1350 *
1351 * Note! This is for pre-ILK only.
7434a255
TR		 1352 *
1353 * Unfortunately needed by dvo_ns2501 since the dvo depends on it running.
63d7bbe9
JB		 1354 */
1355static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1356{
1357 int reg;
1358 u32 val;
1359
58c6eaa2
DV		 1360 assert_pipe_disabled(dev_priv, pipe);
1361
63d7bbe9 1362 /* No really, not for ILK+ */
a0c4da24 1363 BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5);
63d7bbe9
JB		 1364
1365 /* PLL is protected by panel, make sure we can write it */
1366 if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev))
1367 assert_panel_unlocked(dev_priv, pipe);
1368
1369 reg = DPLL(pipe);
1370 val = I915_READ(reg);
1371 val |= DPLL_VCO_ENABLE;
1372
1373 /* We do this three times for luck */
1374 I915_WRITE(reg, val);
1375 POSTING_READ(reg);
1376 udelay(150); /* wait for warmup */
1377 I915_WRITE(reg, val);
1378 POSTING_READ(reg);
1379 udelay(150); /* wait for warmup */
1380 I915_WRITE(reg, val);
1381 POSTING_READ(reg);
1382 udelay(150); /* wait for warmup */
1383}
1384
1385/**
1386 * intel_disable_pll - disable a PLL
1387 * @dev_priv: i915 private structure
1388 * @pipe: pipe PLL to disable
1389 *
1390 * Disable the PLL for @pipe, making sure the pipe is off first.
1391 *
1392 * Note! This is for pre-ILK only.
1393 */
1394static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1395{
1396 int reg;
1397 u32 val;
1398
1399 /* Don't disable pipe A or pipe A PLLs if needed */
1400 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1401 return;
1402
1403 /* Make sure the pipe isn't still relying on us */
1404 assert_pipe_disabled(dev_priv, pipe);
1405
1406 reg = DPLL(pipe);
1407 val = I915_READ(reg);
1408 val &= ~DPLL_VCO_ENABLE;
1409 I915_WRITE(reg, val);
1410 POSTING_READ(reg);
1411}
1412
a416edef
ED		 1413/* SBI access */
1414static void
988d6ee8
PZ		 1415intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
1416 enum intel_sbi_destination destination)
a416edef 1417{
988d6ee8 1418 u32 tmp;
a416edef 1419
09153000 1420 WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
a416edef 1421
39fb50f6 1422 if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0,
a416edef
ED		 1423 100)) {
1424 DRM_ERROR("timeout waiting for SBI to become ready\n");
09153000 1425 return;
a416edef
ED		 1426 }
1427
988d6ee8
PZ		 1428 I915_WRITE(SBI_ADDR, (reg << 16));
1429 I915_WRITE(SBI_DATA, value);
1430
1431 if (destination == SBI_ICLK)
1432 tmp = SBI_CTL_DEST_ICLK | SBI_CTL_OP_CRWR;
1433 else
1434 tmp = SBI_CTL_DEST_MPHY | SBI_CTL_OP_IOWR;
1435 I915_WRITE(SBI_CTL_STAT, SBI_BUSY | tmp);
a416edef 1436
39fb50f6 1437 if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0,
a416edef
ED		 1438 100)) {
1439 DRM_ERROR("timeout waiting for SBI to complete write transaction\n");
09153000 1440 return;
a416edef 1441 }
a416edef
ED		 1442}
1443
1444static u32
988d6ee8
PZ		 1445intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
1446 enum intel_sbi_destination destination)
a416edef 1447{
39fb50f6 1448 u32 value = 0;
09153000 1449 WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
a416edef 1450
39fb50f6 1451 if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0,
a416edef
ED		 1452 100)) {
1453 DRM_ERROR("timeout waiting for SBI to become ready\n");
09153000 1454 return 0;
a416edef
ED		 1455 }
1456
988d6ee8
PZ		 1457 I915_WRITE(SBI_ADDR, (reg << 16));
1458
1459 if (destination == SBI_ICLK)
1460 value = SBI_CTL_DEST_ICLK | SBI_CTL_OP_CRRD;
1461 else
1462 value = SBI_CTL_DEST_MPHY | SBI_CTL_OP_IORD;
1463 I915_WRITE(SBI_CTL_STAT, value | SBI_BUSY);
a416edef 1464
39fb50f6 1465 if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0,
a416edef
ED		 1466 100)) {
1467 DRM_ERROR("timeout waiting for SBI to complete read transaction\n");
09153000 1468 return 0;
a416edef
ED		 1469 }
1470
09153000 1471 return I915_READ(SBI_DATA);
a416edef
ED		 1472}
1473
89b667f8
JB		 1474void vlv_wait_port_ready(struct drm_i915_private *dev_priv, int port)
1475{
1476 u32 port_mask;
1477
1478 if (!port)
1479 port_mask = DPLL_PORTB_READY_MASK;
1480 else
1481 port_mask = DPLL_PORTC_READY_MASK;
1482
1483 if (wait_for((I915_READ(DPLL(0)) & port_mask) == 0, 1000))
1484 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1485 'B' + port, I915_READ(DPLL(0)));
1486}
1487
92f2584a 1488/**
b6b4e185 1489 * ironlake_enable_pch_pll - enable PCH PLL
92f2584a
JB		 1490 * @dev_priv: i915 private structure
1491 * @pipe: pipe PLL to enable
1492 *
1493 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1494 * drives the transcoder clock.
1495 */
b6b4e185 1496static void ironlake_enable_pch_pll(struct intel_crtc *intel_crtc)
92f2584a 1497{
ee7b9f93 1498 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
48da64a8 1499 struct intel_pch_pll *pll;
92f2584a
JB		 1500 int reg;
1501 u32 val;
1502
48da64a8 1503 /* PCH PLLs only available on ILK, SNB and IVB */
92f2584a 1504 BUG_ON(dev_priv->info->gen < 5);
48da64a8
CW		 1505 pll = intel_crtc->pch_pll;
1506 if (pll == NULL)
1507 return;
1508
1509 if (WARN_ON(pll->refcount == 0))
1510 return;
ee7b9f93
JB		 1511
1512 DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n",
1513 pll->pll_reg, pll->active, pll->on,
1514 intel_crtc->base.base.id);
92f2584a
JB		 1515
1516 /* PCH refclock must be enabled first */
1517 assert_pch_refclk_enabled(dev_priv);
1518
ee7b9f93 1519 if (pll->active++ && pll->on) {
92b27b08 1520 assert_pch_pll_enabled(dev_priv, pll, NULL);
ee7b9f93
JB		 1521 return;
1522 }
1523
1524 DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg);
1525
1526 reg = pll->pll_reg;
92f2584a
JB		 1527 val = I915_READ(reg);
1528 val |= DPLL_VCO_ENABLE;
1529 I915_WRITE(reg, val);
1530 POSTING_READ(reg);
1531 udelay(200);
ee7b9f93
JB		 1532
1533 pll->on = true;
92f2584a
JB		 1534}
1535
ee7b9f93 1536static void intel_disable_pch_pll(struct intel_crtc *intel_crtc)
92f2584a 1537{
ee7b9f93
JB		 1538 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
1539 struct intel_pch_pll *pll = intel_crtc->pch_pll;
92f2584a 1540 int reg;
ee7b9f93 1541 u32 val;
4c609cb8 1542
92f2584a
JB		 1543 /* PCH only available on ILK+ */
1544 BUG_ON(dev_priv->info->gen < 5);
ee7b9f93
JB		 1545 if (pll == NULL)
1546 return;
92f2584a 1547
48da64a8
CW		 1548 if (WARN_ON(pll->refcount == 0))
1549 return;
7a419866 1550
ee7b9f93
JB		 1551 DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n",
1552 pll->pll_reg, pll->active, pll->on,
1553 intel_crtc->base.base.id);
7a419866 1554
48da64a8 1555 if (WARN_ON(pll->active == 0)) {
92b27b08 1556 assert_pch_pll_disabled(dev_priv, pll, NULL);
48da64a8
CW		 1557 return;
1558 }
1559
ee7b9f93 1560 if (--pll->active) {
92b27b08 1561 assert_pch_pll_enabled(dev_priv, pll, NULL);
7a419866 1562 return;
ee7b9f93
JB		 1563 }
1564
1565 DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg);
1566
1567 /* Make sure transcoder isn't still depending on us */
ab9412ba 1568 assert_pch_transcoder_disabled(dev_priv, intel_crtc->pipe);
7a419866 1569
ee7b9f93 1570 reg = pll->pll_reg;
92f2584a
JB		 1571 val = I915_READ(reg);
1572 val &= ~DPLL_VCO_ENABLE;
1573 I915_WRITE(reg, val);
1574 POSTING_READ(reg);
1575 udelay(200);
ee7b9f93
JB		 1576
1577 pll->on = false;
92f2584a
JB		 1578}
1579
b8a4f404
PZ		 1580static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1581 enum pipe pipe)
040484af 1582{
23670b32 1583 struct drm_device *dev = dev_priv->dev;
7c26e5c6 1584 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
23670b32 1585 uint32_t reg, val, pipeconf_val;
040484af
JB		 1586
1587 /* PCH only available on ILK+ */
1588 BUG_ON(dev_priv->info->gen < 5);
1589
1590 /* Make sure PCH DPLL is enabled */
92b27b08
CW		 1591 assert_pch_pll_enabled(dev_priv,
1592 to_intel_crtc(crtc)->pch_pll,
1593 to_intel_crtc(crtc));
040484af
JB		 1594
1595 /* FDI must be feeding us bits for PCH ports */
1596 assert_fdi_tx_enabled(dev_priv, pipe);
1597 assert_fdi_rx_enabled(dev_priv, pipe);
1598
23670b32
DV		 1599 if (HAS_PCH_CPT(dev)) {
1600 /* Workaround: Set the timing override bit before enabling the
1601 * pch transcoder. */
1602 reg = TRANS_CHICKEN2(pipe);
1603 val = I915_READ(reg);
1604 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1605 I915_WRITE(reg, val);
59c859d6 1606 }
23670b32 1607
ab9412ba 1608 reg = PCH_TRANSCONF(pipe);
040484af 1609 val = I915_READ(reg);
5f7f726d 1610 pipeconf_val = I915_READ(PIPECONF(pipe));
e9bcff5c
JB		 1611
1612 if (HAS_PCH_IBX(dev_priv->dev)) {
1613 /*
1614 * make the BPC in transcoder be consistent with
1615 * that in pipeconf reg.
1616 */
dfd07d72
DV		 1617 val &= ~PIPECONF_BPC_MASK;
1618 val |= pipeconf_val & PIPECONF_BPC_MASK;
e9bcff5c 1619 }
5f7f726d
PZ		 1620
1621 val &= ~TRANS_INTERLACE_MASK;
1622 if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
7c26e5c6
PZ		 1623 if (HAS_PCH_IBX(dev_priv->dev) &&
1624 intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO))
1625 val |= TRANS_LEGACY_INTERLACED_ILK;
1626 else
1627 val |= TRANS_INTERLACED;
5f7f726d
PZ		 1628 else
1629 val |= TRANS_PROGRESSIVE;
1630
040484af
JB		 1631 I915_WRITE(reg, val | TRANS_ENABLE);
1632 if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
4bb6f1f3 1633 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe));
040484af
JB		 1634}
1635
8fb033d7 1636static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
937bb610 1637 enum transcoder cpu_transcoder)
040484af 1638{
8fb033d7 1639 u32 val, pipeconf_val;
8fb033d7
PZ		 1640
1641 /* PCH only available on ILK+ */
1642 BUG_ON(dev_priv->info->gen < 5);
1643
8fb033d7 1644 /* FDI must be feeding us bits for PCH ports */
1a240d4d 1645 assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
937bb610 1646 assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
8fb033d7 1647
223a6fdf
PZ		 1648 /* Workaround: set timing override bit. */
1649 val = I915_READ(_TRANSA_CHICKEN2);
23670b32 1650 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
223a6fdf
PZ		 1651 I915_WRITE(_TRANSA_CHICKEN2, val);
1652
25f3ef11 1653 val = TRANS_ENABLE;
937bb610 1654 pipeconf_val = I915_READ(PIPECONF(cpu_transcoder));
8fb033d7 1655
9a76b1c6
PZ		 1656 if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) ==
1657 PIPECONF_INTERLACED_ILK)
a35f2679 1658 val |= TRANS_INTERLACED;
8fb033d7
PZ		 1659 else
1660 val |= TRANS_PROGRESSIVE;
1661
ab9412ba
DV		 1662 I915_WRITE(LPT_TRANSCONF, val);
1663 if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100))
937bb610 1664 DRM_ERROR("Failed to enable PCH transcoder\n");
8fb033d7
PZ		 1665}
1666
b8a4f404
PZ		 1667static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
1668 enum pipe pipe)
040484af 1669{
23670b32
DV		 1670 struct drm_device *dev = dev_priv->dev;
1671 uint32_t reg, val;
040484af
JB		 1672
1673 /* FDI relies on the transcoder */
1674 assert_fdi_tx_disabled(dev_priv, pipe);
1675 assert_fdi_rx_disabled(dev_priv, pipe);
1676
291906f1
JB		 1677 /* Ports must be off as well */
1678 assert_pch_ports_disabled(dev_priv, pipe);
1679
ab9412ba 1680 reg = PCH_TRANSCONF(pipe);
040484af
JB		 1681 val = I915_READ(reg);
1682 val &= ~TRANS_ENABLE;
1683 I915_WRITE(reg, val);
1684 /* wait for PCH transcoder off, transcoder state */
1685 if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
4bb6f1f3 1686 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe));
23670b32
DV		 1687
1688 if (!HAS_PCH_IBX(dev)) {
1689 /* Workaround: Clear the timing override chicken bit again. */
1690 reg = TRANS_CHICKEN2(pipe);
1691 val = I915_READ(reg);
1692 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1693 I915_WRITE(reg, val);
1694 }
040484af
JB		 1695}
1696
ab4d966c 1697static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
8fb033d7 1698{
8fb033d7
PZ		 1699 u32 val;
1700
ab9412ba 1701 val = I915_READ(LPT_TRANSCONF);
8fb033d7 1702 val &= ~TRANS_ENABLE;
ab9412ba 1703 I915_WRITE(LPT_TRANSCONF, val);
8fb033d7 1704 /* wait for PCH transcoder off, transcoder state */
ab9412ba 1705 if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50))
8a52fd9f 1706 DRM_ERROR("Failed to disable PCH transcoder\n");
223a6fdf
PZ		 1707
1708 /* Workaround: clear timing override bit. */
1709 val = I915_READ(_TRANSA_CHICKEN2);
23670b32 1710 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
223a6fdf 1711 I915_WRITE(_TRANSA_CHICKEN2, val);
040484af
JB		 1712}
1713
b24e7179 1714/**
309cfea8 1715 * intel_enable_pipe - enable a pipe, asserting requirements
b24e7179
JB		 1716 * @dev_priv: i915 private structure
1717 * @pipe: pipe to enable
040484af 1718 * @pch_port: on ILK+, is this pipe driving a PCH port or not
b24e7179
JB		 1719 *
1720 * Enable @pipe, making sure that various hardware specific requirements
1721 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1722 *
1723 * @pipe should be %PIPE_A or %PIPE_B.
1724 *
1725 * Will wait until the pipe is actually running (i.e. first vblank) before
1726 * returning.
1727 */
040484af
JB		 1728static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
1729 bool pch_port)
b24e7179 1730{
702e7a56
PZ		 1731 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1732 pipe);
1a240d4d 1733 enum pipe pch_transcoder;
b24e7179
JB		 1734 int reg;
1735 u32 val;
1736
58c6eaa2
DV		 1737 assert_planes_disabled(dev_priv, pipe);
1738 assert_sprites_disabled(dev_priv, pipe);
1739
681e5811 1740 if (HAS_PCH_LPT(dev_priv->dev))
cc391bbb
PZ		 1741 pch_transcoder = TRANSCODER_A;
1742 else
1743 pch_transcoder = pipe;
1744
b24e7179
JB		 1745 /*
1746 * A pipe without a PLL won't actually be able to drive bits from
1747 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1748 * need the check.
1749 */
1750 if (!HAS_PCH_SPLIT(dev_priv->dev))
1751 assert_pll_enabled(dev_priv, pipe);
040484af
JB		 1752 else {
1753 if (pch_port) {
1754 /* if driving the PCH, we need FDI enabled */
cc391bbb 1755 assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
1a240d4d
DV		 1756 assert_fdi_tx_pll_enabled(dev_priv,
1757 (enum pipe) cpu_transcoder);
040484af
JB		 1758 }
1759 /* FIXME: assert CPU port conditions for SNB+ */
1760 }
b24e7179 1761
702e7a56 1762 reg = PIPECONF(cpu_transcoder);
b24e7179 1763 val = I915_READ(reg);
00d70b15
CW		 1764 if (val & PIPECONF_ENABLE)
1765 return;
1766
1767 I915_WRITE(reg, val | PIPECONF_ENABLE);
b24e7179
JB		 1768 intel_wait_for_vblank(dev_priv->dev, pipe);
1769}
1770
1771/**
309cfea8 1772 * intel_disable_pipe - disable a pipe, asserting requirements
b24e7179
JB		 1773 * @dev_priv: i915 private structure
1774 * @pipe: pipe to disable
1775 *
1776 * Disable @pipe, making sure that various hardware specific requirements
1777 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1778 *
1779 * @pipe should be %PIPE_A or %PIPE_B.
1780 *
1781 * Will wait until the pipe has shut down before returning.
1782 */
1783static void intel_disable_pipe(struct drm_i915_private *dev_priv,
1784 enum pipe pipe)
1785{
702e7a56
PZ		 1786 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1787 pipe);
b24e7179
JB		 1788 int reg;
1789 u32 val;
1790
1791 /*
1792 * Make sure planes won't keep trying to pump pixels to us,
1793 * or we might hang the display.
1794 */
1795 assert_planes_disabled(dev_priv, pipe);
19332d7a 1796 assert_sprites_disabled(dev_priv, pipe);
b24e7179
JB		 1797
1798 /* Don't disable pipe A or pipe A PLLs if needed */
1799 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1800 return;
1801
702e7a56 1802 reg = PIPECONF(cpu_transcoder);
b24e7179 1803 val = I915_READ(reg);
00d70b15
CW		 1804 if ((val & PIPECONF_ENABLE) == 0)
1805 return;
1806
1807 I915_WRITE(reg, val & ~PIPECONF_ENABLE);
b24e7179
JB		 1808 intel_wait_for_pipe_off(dev_priv->dev, pipe);
1809}
1810
d74362c9
KP		 1811/*
1812 * Plane regs are double buffered, going from enabled->disabled needs a
1813 * trigger in order to latch. The display address reg provides this.
1814 */
6f1d69b0 1815void intel_flush_display_plane(struct drm_i915_private *dev_priv,
d74362c9
KP		 1816 enum plane plane)
1817{
14f86147
DL		 1818 if (dev_priv->info->gen >= 4)
1819 I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane)));
1820 else
1821 I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane)));
d74362c9
KP		 1822}
1823
b24e7179
JB		 1824/**
1825 * intel_enable_plane - enable a display plane on a given pipe
1826 * @dev_priv: i915 private structure
1827 * @plane: plane to enable
1828 * @pipe: pipe being fed
1829 *
1830 * Enable @plane on @pipe, making sure that @pipe is running first.
1831 */
1832static void intel_enable_plane(struct drm_i915_private *dev_priv,
1833 enum plane plane, enum pipe pipe)
1834{
1835 int reg;
1836 u32 val;
1837
1838 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1839 assert_pipe_enabled(dev_priv, pipe);
1840
1841 reg = DSPCNTR(plane);
1842 val = I915_READ(reg);
00d70b15
CW		 1843 if (val & DISPLAY_PLANE_ENABLE)
1844 return;
1845
1846 I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
d74362c9 1847 intel_flush_display_plane(dev_priv, plane);
b24e7179
JB		 1848 intel_wait_for_vblank(dev_priv->dev, pipe);
1849}
1850
b24e7179
JB		 1851/**
1852 * intel_disable_plane - disable a display plane
1853 * @dev_priv: i915 private structure
1854 * @plane: plane to disable
1855 * @pipe: pipe consuming the data
1856 *
1857 * Disable @plane; should be an independent operation.
1858 */
1859static void intel_disable_plane(struct drm_i915_private *dev_priv,
1860 enum plane plane, enum pipe pipe)
1861{
1862 int reg;
1863 u32 val;
1864
1865 reg = DSPCNTR(plane);
1866 val = I915_READ(reg);
00d70b15
CW		 1867 if ((val & DISPLAY_PLANE_ENABLE) == 0)
1868 return;
1869
1870 I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
b24e7179
JB		 1871 intel_flush_display_plane(dev_priv, plane);
1872 intel_wait_for_vblank(dev_priv->dev, pipe);
1873}
1874
693db184
CW		 1875static bool need_vtd_wa(struct drm_device *dev)
1876{
1877#ifdef CONFIG_INTEL_IOMMU
1878 if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped)
1879 return true;
1880#endif
1881 return false;
1882}
1883
127bd2ac 1884int
48b956c5 1885intel_pin_and_fence_fb_obj(struct drm_device *dev,
05394f39 1886 struct drm_i915_gem_object *obj,
919926ae 1887 struct intel_ring_buffer *pipelined)
6b95a207 1888{
ce453d81 1889 struct drm_i915_private *dev_priv = dev->dev_private;
6b95a207
KH		 1890 u32 alignment;
1891 int ret;
1892
05394f39 1893 switch (obj->tiling_mode) {
6b95a207 1894 case I915_TILING_NONE:
534843da
CW		 1895 if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
1896 alignment = 128 * 1024;
a6c45cf0 1897 else if (INTEL_INFO(dev)->gen >= 4)
534843da
CW		 1898 alignment = 4 * 1024;
1899 else
1900 alignment = 64 * 1024;
6b95a207
KH		 1901 break;
1902 case I915_TILING_X:
1903 /* pin() will align the object as required by fence */
1904 alignment = 0;
1905 break;
1906 case I915_TILING_Y:
8bb6e959
DV		 1907 /* Despite that we check this in framebuffer_init userspace can
1908 * screw us over and change the tiling after the fact. Only
1909 * pinned buffers can't change their tiling. */
1910 DRM_DEBUG_DRIVER("Y tiled not allowed for scan out buffers\n");
6b95a207
KH		 1911 return -EINVAL;
1912 default:
1913 BUG();
1914 }
1915
693db184
CW		 1916 /* Note that the w/a also requires 64 PTE of padding following the
1917 * bo. We currently fill all unused PTE with the shadow page and so
1918 * we should always have valid PTE following the scanout preventing
1919 * the VT-d warning.
1920 */
1921 if (need_vtd_wa(dev) && alignment < 256 * 1024)
1922 alignment = 256 * 1024;
1923
ce453d81 1924 dev_priv->mm.interruptible = false;
2da3b9b9 1925 ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
48b956c5 1926 if (ret)
ce453d81 1927 goto err_interruptible;
6b95a207
KH		 1928
1929 /* Install a fence for tiled scan-out. Pre-i965 always needs a
1930 * fence, whereas 965+ only requires a fence if using
1931 * framebuffer compression. For simplicity, we always install
1932 * a fence as the cost is not that onerous.
1933 */
06d98131 1934 ret = i915_gem_object_get_fence(obj);
9a5a53b3
CW		 1935 if (ret)
1936 goto err_unpin;
1690e1eb 1937
9a5a53b3 1938 i915_gem_object_pin_fence(obj);
6b95a207 1939
ce453d81 1940 dev_priv->mm.interruptible = true;
6b95a207 1941 return 0;
48b956c5
CW		 1942
1943err_unpin:
1944 i915_gem_object_unpin(obj);
ce453d81
CW		 1945err_interruptible:
1946 dev_priv->mm.interruptible = true;
48b956c5 1947 return ret;
6b95a207
KH		 1948}
1949
1690e1eb
CW		 1950void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
1951{
1952 i915_gem_object_unpin_fence(obj);
1953 i915_gem_object_unpin(obj);
1954}
1955
c2c75131
DV		 1956/* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
1957 * is assumed to be a power-of-two. */
bc752862
CW		 1958unsigned long intel_gen4_compute_page_offset(int *x, int *y,
1959 unsigned int tiling_mode,
1960 unsigned int cpp,
1961 unsigned int pitch)
c2c75131 1962{
bc752862
CW		 1963 if (tiling_mode != I915_TILING_NONE) {
1964 unsigned int tile_rows, tiles;
c2c75131 1965
bc752862
CW		 1966 tile_rows = *y / 8;
1967 *y %= 8;
c2c75131 1968
bc752862
CW		 1969 tiles = *x / (512/cpp);
1970 *x %= 512/cpp;
1971
1972 return tile_rows * pitch * 8 + tiles * 4096;
1973 } else {
1974 unsigned int offset;
1975
1976 offset = *y * pitch + *x * cpp;
1977 *y = 0;
1978 *x = (offset & 4095) / cpp;
1979 return offset & -4096;
1980 }
c2c75131
DV		 1981}
1982
17638cd6
JB		 1983static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
1984 int x, int y)
81255565
JB		 1985{
1986 struct drm_device *dev = crtc->dev;
1987 struct drm_i915_private *dev_priv = dev->dev_private;
1988 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1989 struct intel_framebuffer *intel_fb;
05394f39 1990 struct drm_i915_gem_object *obj;
81255565 1991 int plane = intel_crtc->plane;
e506a0c6 1992 unsigned long linear_offset;
81255565 1993 u32 dspcntr;
5eddb70b 1994 u32 reg;
81255565
JB		 1995
1996 switch (plane) {
1997 case 0:
1998 case 1:
1999 break;
2000 default:
84f44ce7 2001 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
81255565
JB		 2002 return -EINVAL;
2003 }
2004
2005 intel_fb = to_intel_framebuffer(fb);
2006 obj = intel_fb->obj;
81255565 2007
5eddb70b
CW		 2008 reg = DSPCNTR(plane);
2009 dspcntr = I915_READ(reg);
81255565
JB		 2010 /* Mask out pixel format bits in case we change it */
2011 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
57779d06
VS		 2012 switch (fb->pixel_format) {
2013 case DRM_FORMAT_C8:
81255565
JB		 2014 dspcntr |= DISPPLANE_8BPP;
2015 break;
57779d06
VS		 2016 case DRM_FORMAT_XRGB1555:
2017 case DRM_FORMAT_ARGB1555:
2018 dspcntr |= DISPPLANE_BGRX555;
81255565 2019 break;
57779d06
VS		 2020 case DRM_FORMAT_RGB565:
2021 dspcntr |= DISPPLANE_BGRX565;
2022 break;
2023 case DRM_FORMAT_XRGB8888:
2024 case DRM_FORMAT_ARGB8888:
2025 dspcntr |= DISPPLANE_BGRX888;
2026 break;
2027 case DRM_FORMAT_XBGR8888:
2028 case DRM_FORMAT_ABGR8888:
2029 dspcntr |= DISPPLANE_RGBX888;
2030 break;
2031 case DRM_FORMAT_XRGB2101010:
2032 case DRM_FORMAT_ARGB2101010:
2033 dspcntr |= DISPPLANE_BGRX101010;
2034 break;
2035 case DRM_FORMAT_XBGR2101010:
2036 case DRM_FORMAT_ABGR2101010:
2037 dspcntr |= DISPPLANE_RGBX101010;
81255565
JB		 2038 break;
2039 default:
baba133a 2040 BUG();
81255565 2041 }
57779d06 2042
a6c45cf0 2043 if (INTEL_INFO(dev)->gen >= 4) {
05394f39 2044 if (obj->tiling_mode != I915_TILING_NONE)
81255565
JB		 2045 dspcntr |= DISPPLANE_TILED;
2046 else
2047 dspcntr &= ~DISPPLANE_TILED;
2048 }
2049
5eddb70b 2050 I915_WRITE(reg, dspcntr);
81255565 2051
e506a0c6 2052 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
81255565 2053
c2c75131
DV		 2054 if (INTEL_INFO(dev)->gen >= 4) {
2055 intel_crtc->dspaddr_offset =
bc752862
CW		 2056 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2057 fb->bits_per_pixel / 8,
2058 fb->pitches[0]);
c2c75131
DV		 2059 linear_offset -= intel_crtc->dspaddr_offset;
2060 } else {
e506a0c6 2061 intel_crtc->dspaddr_offset = linear_offset;
c2c75131 2062 }
e506a0c6
DV		 2063
2064 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2065 obj->gtt_offset, linear_offset, x, y, fb->pitches[0]);
01f2c773 2066 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
a6c45cf0 2067 if (INTEL_INFO(dev)->gen >= 4) {
c2c75131
DV		 2068 I915_MODIFY_DISPBASE(DSPSURF(plane),
2069 obj->gtt_offset + intel_crtc->dspaddr_offset);
5eddb70b 2070 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
e506a0c6 2071 I915_WRITE(DSPLINOFF(plane), linear_offset);
5eddb70b 2072 } else
e506a0c6 2073 I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset);
5eddb70b 2074 POSTING_READ(reg);
81255565 2075
17638cd6
JB		 2076 return 0;
2077}
2078
2079static int ironlake_update_plane(struct drm_crtc *crtc,
2080 struct drm_framebuffer *fb, int x, int y)
2081{
2082 struct drm_device *dev = crtc->dev;
2083 struct drm_i915_private *dev_priv = dev->dev_private;
2084 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2085 struct intel_framebuffer *intel_fb;
2086 struct drm_i915_gem_object *obj;
2087 int plane = intel_crtc->plane;
e506a0c6 2088 unsigned long linear_offset;
17638cd6
JB		 2089 u32 dspcntr;
2090 u32 reg;
2091
2092 switch (plane) {
2093 case 0:
2094 case 1:
27f8227b 2095 case 2:
17638cd6
JB		 2096 break;
2097 default:
84f44ce7 2098 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
17638cd6
JB		 2099 return -EINVAL;
2100 }
2101
2102 intel_fb = to_intel_framebuffer(fb);
2103 obj = intel_fb->obj;
2104
2105 reg = DSPCNTR(plane);
2106 dspcntr = I915_READ(reg);
2107 /* Mask out pixel format bits in case we change it */
2108 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
57779d06
VS		 2109 switch (fb->pixel_format) {
2110 case DRM_FORMAT_C8:
17638cd6
JB		 2111 dspcntr |= DISPPLANE_8BPP;
2112 break;
57779d06
VS		 2113 case DRM_FORMAT_RGB565:
2114 dspcntr |= DISPPLANE_BGRX565;
17638cd6 2115 break;
57779d06
VS		 2116 case DRM_FORMAT_XRGB8888:
2117 case DRM_FORMAT_ARGB8888:
2118 dspcntr |= DISPPLANE_BGRX888;
2119 break;
2120 case DRM_FORMAT_XBGR8888:
2121 case DRM_FORMAT_ABGR8888:
2122 dspcntr |= DISPPLANE_RGBX888;
2123 break;
2124 case DRM_FORMAT_XRGB2101010:
2125 case DRM_FORMAT_ARGB2101010:
2126 dspcntr |= DISPPLANE_BGRX101010;
2127 break;
2128 case DRM_FORMAT_XBGR2101010:
2129 case DRM_FORMAT_ABGR2101010:
2130 dspcntr |= DISPPLANE_RGBX101010;
17638cd6
JB		 2131 break;
2132 default:
baba133a 2133 BUG();
17638cd6
JB		 2134 }
2135
2136 if (obj->tiling_mode != I915_TILING_NONE)
2137 dspcntr |= DISPPLANE_TILED;
2138 else
2139 dspcntr &= ~DISPPLANE_TILED;
2140
2141 /* must disable */
2142 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2143
2144 I915_WRITE(reg, dspcntr);
2145
e506a0c6 2146 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
c2c75131 2147 intel_crtc->dspaddr_offset =
bc752862
CW		 2148 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2149 fb->bits_per_pixel / 8,
2150 fb->pitches[0]);
c2c75131 2151 linear_offset -= intel_crtc->dspaddr_offset;
17638cd6 2152
e506a0c6
DV		 2153 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2154 obj->gtt_offset, linear_offset, x, y, fb->pitches[0]);
01f2c773 2155 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
c2c75131
DV		 2156 I915_MODIFY_DISPBASE(DSPSURF(plane),
2157 obj->gtt_offset + intel_crtc->dspaddr_offset);
bc1c91eb
DL		 2158 if (IS_HASWELL(dev)) {
2159 I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
2160 } else {
2161 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2162 I915_WRITE(DSPLINOFF(plane), linear_offset);
2163 }
17638cd6
JB		 2164 POSTING_READ(reg);
2165
2166 return 0;
2167}
2168
2169/* Assume fb object is pinned & idle & fenced and just update base pointers */
2170static int
2171intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2172 int x, int y, enum mode_set_atomic state)
2173{
2174 struct drm_device *dev = crtc->dev;
2175 struct drm_i915_private *dev_priv = dev->dev_private;
17638cd6 2176
6b8e6ed0
CW		 2177 if (dev_priv->display.disable_fbc)
2178 dev_priv->display.disable_fbc(dev);
3dec0095 2179 intel_increase_pllclock(crtc);
81255565 2180
6b8e6ed0 2181 return dev_priv->display.update_plane(crtc, fb, x, y);
81255565
JB		 2182}
2183
96a02917
VS		 2184void intel_display_handle_reset(struct drm_device *dev)
2185{
2186 struct drm_i915_private *dev_priv = dev->dev_private;
2187 struct drm_crtc *crtc;
2188
2189 /*
2190 * Flips in the rings have been nuked by the reset,
2191 * so complete all pending flips so that user space
2192 * will get its events and not get stuck.
2193 *
2194 * Also update the base address of all primary
2195 * planes to the the last fb to make sure we're
2196 * showing the correct fb after a reset.
2197 *
2198 * Need to make two loops over the crtcs so that we
2199 * don't try to grab a crtc mutex before the
2200 * pending_flip_queue really got woken up.
2201 */
2202
2203 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2204 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2205 enum plane plane = intel_crtc->plane;
2206
2207 intel_prepare_page_flip(dev, plane);
2208 intel_finish_page_flip_plane(dev, plane);
2209 }
2210
2211 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2212 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2213
2214 mutex_lock(&crtc->mutex);
2215 if (intel_crtc->active)
2216 dev_priv->display.update_plane(crtc, crtc->fb,
2217 crtc->x, crtc->y);
2218 mutex_unlock(&crtc->mutex);
2219 }
2220}
2221
14667a4b
CW		 2222static int
2223intel_finish_fb(struct drm_framebuffer *old_fb)
2224{
2225 struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
2226 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2227 bool was_interruptible = dev_priv->mm.interruptible;
2228 int ret;
2229
14667a4b
CW		 2230 /* Big Hammer, we also need to ensure that any pending
2231 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2232 * current scanout is retired before unpinning the old
2233 * framebuffer.
2234 *
2235 * This should only fail upon a hung GPU, in which case we
2236 * can safely continue.
2237 */
2238 dev_priv->mm.interruptible = false;
2239 ret = i915_gem_object_finish_gpu(obj);
2240 dev_priv->mm.interruptible = was_interruptible;
2241
2242 return ret;
2243}
2244
198598d0
VS		 2245static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y)
2246{
2247 struct drm_device *dev = crtc->dev;
2248 struct drm_i915_master_private *master_priv;
2249 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2250
2251 if (!dev->primary->master)
2252 return;
2253
2254 master_priv = dev->primary->master->driver_priv;
2255 if (!master_priv->sarea_priv)
2256 return;
2257
2258 switch (intel_crtc->pipe) {
2259 case 0:
2260 master_priv->sarea_priv->pipeA_x = x;
2261 master_priv->sarea_priv->pipeA_y = y;
2262 break;
2263 case 1:
2264 master_priv->sarea_priv->pipeB_x = x;
2265 master_priv->sarea_priv->pipeB_y = y;
2266 break;
2267 default:
2268 break;
2269 }
2270}
2271
5c3b82e2 2272static int
3c4fdcfb 2273intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
94352cf9 2274 struct drm_framebuffer *fb)
79e53945
JB		 2275{
2276 struct drm_device *dev = crtc->dev;
6b8e6ed0 2277 struct drm_i915_private *dev_priv = dev->dev_private;
79e53945 2278 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
94352cf9 2279 struct drm_framebuffer *old_fb;
5c3b82e2 2280 int ret;
79e53945
JB		 2281
2282 /* no fb bound */
94352cf9 2283 if (!fb) {
a5071c2f 2284 DRM_ERROR("No FB bound\n");
5c3b82e2
CW		 2285 return 0;
2286 }
2287
7eb552ae 2288 if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
84f44ce7
VS		 2289 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2290 plane_name(intel_crtc->plane),
2291 INTEL_INFO(dev)->num_pipes);
5c3b82e2 2292 return -EINVAL;
79e53945
JB		 2293 }
2294
5c3b82e2 2295 mutex_lock(&dev->struct_mutex);
265db958 2296 ret = intel_pin_and_fence_fb_obj(dev,
94352cf9 2297 to_intel_framebuffer(fb)->obj,
919926ae 2298 NULL);
5c3b82e2
CW		 2299 if (ret != 0) {
2300 mutex_unlock(&dev->struct_mutex);
a5071c2f 2301 DRM_ERROR("pin & fence failed\n");
5c3b82e2
CW		 2302 return ret;
2303 }
79e53945 2304
94352cf9 2305 ret = dev_priv->display.update_plane(crtc, fb, x, y);
4e6cfefc 2306 if (ret) {
94352cf9 2307 intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);
5c3b82e2 2308 mutex_unlock(&dev->struct_mutex);
a5071c2f 2309 DRM_ERROR("failed to update base address\n");
4e6cfefc 2310 return ret;
79e53945 2311 }
3c4fdcfb 2312
94352cf9
DV		 2313 old_fb = crtc->fb;
2314 crtc->fb = fb;
6c4c86f5
DV		 2315 crtc->x = x;
2316 crtc->y = y;
94352cf9 2317
b7f1de28
CW		 2318 if (old_fb) {
2319 intel_wait_for_vblank(dev, intel_crtc->pipe);
1690e1eb 2320 intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
b7f1de28 2321 }
652c393a 2322
6b8e6ed0 2323 intel_update_fbc(dev);
5c3b82e2 2324 mutex_unlock(&dev->struct_mutex);
79e53945 2325
198598d0 2326 intel_crtc_update_sarea_pos(crtc, x, y);
5c3b82e2
CW		 2327
2328 return 0;
79e53945
JB		 2329}
2330
5e84e1a4
ZW		 2331static void intel_fdi_normal_train(struct drm_crtc *crtc)
2332{
2333 struct drm_device *dev = crtc->dev;
2334 struct drm_i915_private *dev_priv = dev->dev_private;
2335 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2336 int pipe = intel_crtc->pipe;
2337 u32 reg, temp;
2338
2339 /* enable normal train */
2340 reg = FDI_TX_CTL(pipe);
2341 temp = I915_READ(reg);
61e499bf 2342 if (IS_IVYBRIDGE(dev)) {
357555c0
JB		 2343 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2344 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
61e499bf
KP		 2345 } else {
2346 temp &= ~FDI_LINK_TRAIN_NONE;
2347 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
357555c0 2348 }
5e84e1a4
ZW		 2349 I915_WRITE(reg, temp);
2350
2351 reg = FDI_RX_CTL(pipe);
2352 temp = I915_READ(reg);
2353 if (HAS_PCH_CPT(dev)) {
2354 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2355 temp |= FDI_LINK_TRAIN_NORMAL_CPT;
2356 } else {
2357 temp &= ~FDI_LINK_TRAIN_NONE;
2358 temp |= FDI_LINK_TRAIN_NONE;
2359 }
2360 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
2361
2362 /* wait one idle pattern time */
2363 POSTING_READ(reg);
2364 udelay(1000);
357555c0
JB		 2365
2366 /* IVB wants error correction enabled */
2367 if (IS_IVYBRIDGE(dev))
2368 I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
2369 FDI_FE_ERRC_ENABLE);
5e84e1a4
ZW		 2370}
2371
1e833f40
DV		 2372static bool pipe_has_enabled_pch(struct intel_crtc *intel_crtc)
2373{
2374 return intel_crtc->base.enabled && intel_crtc->config.has_pch_encoder;
2375}
2376
01a415fd
DV		 2377static void ivb_modeset_global_resources(struct drm_device *dev)
2378{
2379 struct drm_i915_private *dev_priv = dev->dev_private;
2380 struct intel_crtc *pipe_B_crtc =
2381 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
2382 struct intel_crtc *pipe_C_crtc =
2383 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]);
2384 uint32_t temp;
2385
1e833f40
DV		 2386 /*
2387 * When everything is off disable fdi C so that we could enable fdi B
2388 * with all lanes. Note that we don't care about enabled pipes without
2389 * an enabled pch encoder.
2390 */
2391 if (!pipe_has_enabled_pch(pipe_B_crtc) &&
2392 !pipe_has_enabled_pch(pipe_C_crtc)) {
01a415fd
DV		 2393 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
2394 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
2395
2396 temp = I915_READ(SOUTH_CHICKEN1);
2397 temp &= ~FDI_BC_BIFURCATION_SELECT;
2398 DRM_DEBUG_KMS("disabling fdi C rx\n");
2399 I915_WRITE(SOUTH_CHICKEN1, temp);
2400 }
2401}
2402
8db9d77b
ZW		 2403/* The FDI link training functions for ILK/Ibexpeak. */
2404static void ironlake_fdi_link_train(struct drm_crtc *crtc)
2405{
2406 struct drm_device *dev = crtc->dev;
2407 struct drm_i915_private *dev_priv = dev->dev_private;
2408 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2409 int pipe = intel_crtc->pipe;
0fc932b8 2410 int plane = intel_crtc->plane;
5eddb70b 2411 u32 reg, temp, tries;
8db9d77b 2412
0fc932b8
JB		 2413 /* FDI needs bits from pipe & plane first */
2414 assert_pipe_enabled(dev_priv, pipe);
2415 assert_plane_enabled(dev_priv, plane);
2416
e1a44743
AJ		 2417 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2418 for train result */
5eddb70b
CW		 2419 reg = FDI_RX_IMR(pipe);
2420 temp = I915_READ(reg);
e1a44743
AJ		 2421 temp &= ~FDI_RX_SYMBOL_LOCK;
2422 temp &= ~FDI_RX_BIT_LOCK;
5eddb70b
CW		 2423 I915_WRITE(reg, temp);
2424 I915_READ(reg);
e1a44743
AJ		 2425 udelay(150);
2426
8db9d77b 2427 /* enable CPU FDI TX and PCH FDI RX */
5eddb70b
CW		 2428 reg = FDI_TX_CTL(pipe);
2429 temp = I915_READ(reg);
627eb5a3
DV		 2430 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2431 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
8db9d77b
ZW		 2432 temp &= ~FDI_LINK_TRAIN_NONE;
2433 temp |= FDI_LINK_TRAIN_PATTERN_1;
5eddb70b 2434 I915_WRITE(reg, temp | FDI_TX_ENABLE);
8db9d77b 2435
5eddb70b
CW		 2436 reg = FDI_RX_CTL(pipe);
2437 temp = I915_READ(reg);
8db9d77b
ZW		 2438 temp &= ~FDI_LINK_TRAIN_NONE;
2439 temp |= FDI_LINK_TRAIN_PATTERN_1;
5eddb70b
CW		 2440 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2441
2442 POSTING_READ(reg);
8db9d77b
ZW		 2443 udelay(150);
2444
5b2adf89 2445 /* Ironlake workaround, enable clock pointer after FDI enable*/
8f5718a6
DV		 2446 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2447 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
2448 FDI_RX_PHASE_SYNC_POINTER_EN);
5b2adf89 2449
5eddb70b 2450 reg = FDI_RX_IIR(pipe);
e1a44743 2451 for (tries = 0; tries < 5; tries++) {
5eddb70b 2452 temp = I915_READ(reg);
8db9d77b
ZW		 2453 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2454
2455 if ((temp & FDI_RX_BIT_LOCK)) {
2456 DRM_DEBUG_KMS("FDI train 1 done.\n");
5eddb70b 2457 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
8db9d77b
ZW		 2458 break;
2459 }
8db9d77b 2460 }
e1a44743 2461 if (tries == 5)
5eddb70b 2462 DRM_ERROR("FDI train 1 fail!\n");
8db9d77b
ZW		 2463
2464 /* Train 2 */
5eddb70b
CW		 2465 reg = FDI_TX_CTL(pipe);
2466 temp = I915_READ(reg);
8db9d77b
ZW		 2467 temp &= ~FDI_LINK_TRAIN_NONE;
2468 temp |= FDI_LINK_TRAIN_PATTERN_2;
5eddb70b 2469 I915_WRITE(reg, temp);
8db9d77b 2470
5eddb70b
CW		 2471 reg = FDI_RX_CTL(pipe);
2472 temp = I915_READ(reg);
8db9d77b
ZW		 2473 temp &= ~FDI_LINK_TRAIN_NONE;
2474 temp |= FDI_LINK_TRAIN_PATTERN_2;
5eddb70b 2475 I915_WRITE(reg, temp);
8db9d77b 2476
5eddb70b
CW		 2477 POSTING_READ(reg);
2478 udelay(150);
8db9d77b 2479
5eddb70b 2480 reg = FDI_RX_IIR(pipe);
e1a44743 2481 for (tries = 0; tries < 5; tries++) {
5eddb70b 2482 temp = I915_READ(reg);
8db9d77b
ZW		 2483 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2484
2485 if (temp & FDI_RX_SYMBOL_LOCK) {
5eddb70b 2486 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
8db9d77b
ZW		 2487 DRM_DEBUG_KMS("FDI train 2 done.\n");
2488 break;
2489 }
8db9d77b 2490 }
e1a44743 2491 if (tries == 5)
5eddb70b 2492 DRM_ERROR("FDI train 2 fail!\n");
8db9d77b
ZW		 2493
2494 DRM_DEBUG_KMS("FDI train done\n");
5c5313c8 2495
8db9d77b
ZW		 2496}
2497
0206e353 2498static const int snb_b_fdi_train_param[] = {
8db9d77b
ZW		 2499 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
2500 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
2501 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
2502 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
2503};
2504
2505/* The FDI link training functions for SNB/Cougarpoint. */
2506static void gen6_fdi_link_train(struct drm_crtc *crtc)
2507{
2508 struct drm_device *dev = crtc->dev;
2509 struct drm_i915_private *dev_priv = dev->dev_private;
2510 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2511 int pipe = intel_crtc->pipe;
fa37d39e 2512 u32 reg, temp, i, retry;
8db9d77b 2513
e1a44743
AJ		 2514 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2515 for train result */
5eddb70b
CW		 2516 reg = FDI_RX_IMR(pipe);
2517 temp = I915_READ(reg);
e1a44743
AJ		 2518 temp &= ~FDI_RX_SYMBOL_LOCK;
2519 temp &= ~FDI_RX_BIT_LOCK;
5eddb70b
CW		 2520 I915_WRITE(reg, temp);
2521
2522 POSTING_READ(reg);
e1a44743
AJ		 2523 udelay(150);
2524
8db9d77b 2525 /* enable CPU FDI TX and PCH FDI RX */
5eddb70b
CW		 2526 reg = FDI_TX_CTL(pipe);
2527 temp = I915_READ(reg);
627eb5a3
DV		 2528 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2529 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
8db9d77b
ZW		 2530 temp &= ~FDI_LINK_TRAIN_NONE;
2531 temp |= FDI_LINK_TRAIN_PATTERN_1;
2532 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2533 /* SNB-B */
2534 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
5eddb70b 2535 I915_WRITE(reg, temp | FDI_TX_ENABLE);
8db9d77b 2536
d74cf324
DV		 2537 I915_WRITE(FDI_RX_MISC(pipe),
2538 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2539
5eddb70b
CW		 2540 reg = FDI_RX_CTL(pipe);
2541 temp = I915_READ(reg);
8db9d77b
ZW		 2542 if (HAS_PCH_CPT(dev)) {
2543 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2544 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2545 } else {
2546 temp &= ~FDI_LINK_TRAIN_NONE;
2547 temp |= FDI_LINK_TRAIN_PATTERN_1;
2548 }
5eddb70b
CW		 2549 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2550
2551 POSTING_READ(reg);
8db9d77b
ZW		 2552 udelay(150);
2553
0206e353 2554 for (i = 0; i < 4; i++) {
5eddb70b
CW		 2555 reg = FDI_TX_CTL(pipe);
2556 temp = I915_READ(reg);
8db9d77b
ZW		 2557 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2558 temp |= snb_b_fdi_train_param[i];
5eddb70b
CW		 2559 I915_WRITE(reg, temp);
2560
2561 POSTING_READ(reg);
8db9d77b
ZW		 2562 udelay(500);
2563
fa37d39e
SP		 2564 for (retry = 0; retry < 5; retry++) {
2565 reg = FDI_RX_IIR(pipe);
2566 temp = I915_READ(reg);
2567 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2568 if (temp & FDI_RX_BIT_LOCK) {
2569 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2570 DRM_DEBUG_KMS("FDI train 1 done.\n");
2571 break;
2572 }
2573 udelay(50);
8db9d77b 2574 }
fa37d39e
SP		 2575 if (retry < 5)
2576 break;
8db9d77b
ZW		 2577 }
2578 if (i == 4)
5eddb70b 2579 DRM_ERROR("FDI train 1 fail!\n");
8db9d77b
ZW		 2580
2581 /* Train 2 */
5eddb70b
CW		 2582 reg = FDI_TX_CTL(pipe);
2583 temp = I915_READ(reg);
8db9d77b
ZW		 2584 temp &= ~FDI_LINK_TRAIN_NONE;
2585 temp |= FDI_LINK_TRAIN_PATTERN_2;
2586 if (IS_GEN6(dev)) {
2587 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2588 /* SNB-B */
2589 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2590 }
5eddb70b 2591 I915_WRITE(reg, temp);
8db9d77b 2592
5eddb70b
CW		 2593 reg = FDI_RX_CTL(pipe);
2594 temp = I915_READ(reg);
8db9d77b
ZW		 2595 if (HAS_PCH_CPT(dev)) {
2596 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2597 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2598 } else {
2599 temp &= ~FDI_LINK_TRAIN_NONE;
2600 temp |= FDI_LINK_TRAIN_PATTERN_2;
2601 }
5eddb70b
CW		 2602 I915_WRITE(reg, temp);
2603
2604 POSTING_READ(reg);
8db9d77b
ZW		 2605 udelay(150);
2606
0206e353 2607 for (i = 0; i < 4; i++) {
5eddb70b
CW		 2608 reg = FDI_TX_CTL(pipe);
2609 temp = I915_READ(reg);
8db9d77b
ZW		 2610 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2611 temp |= snb_b_fdi_train_param[i];
5eddb70b
CW		 2612 I915_WRITE(reg, temp);
2613
2614 POSTING_READ(reg);
8db9d77b
ZW		 2615 udelay(500);
2616
fa37d39e
SP		 2617 for (retry = 0; retry < 5; retry++) {
2618 reg = FDI_RX_IIR(pipe);
2619 temp = I915_READ(reg);
2620 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2621 if (temp & FDI_RX_SYMBOL_LOCK) {
2622 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2623 DRM_DEBUG_KMS("FDI train 2 done.\n");
2624 break;
2625 }
2626 udelay(50);
8db9d77b 2627 }
fa37d39e
SP		 2628 if (retry < 5)
2629 break;
8db9d77b
ZW		 2630 }
2631 if (i == 4)
5eddb70b 2632 DRM_ERROR("FDI train 2 fail!\n");
8db9d77b
ZW		 2633
2634 DRM_DEBUG_KMS("FDI train done.\n");
2635}
2636
357555c0
JB		 2637/* Manual link training for Ivy Bridge A0 parts */
2638static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
2639{
2640 struct drm_device *dev = crtc->dev;
2641 struct drm_i915_private *dev_priv = dev->dev_private;
2642 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2643 int pipe = intel_crtc->pipe;
2644 u32 reg, temp, i;
2645
2646 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2647 for train result */
2648 reg = FDI_RX_IMR(pipe);
2649 temp = I915_READ(reg);
2650 temp &= ~FDI_RX_SYMBOL_LOCK;
2651 temp &= ~FDI_RX_BIT_LOCK;
2652 I915_WRITE(reg, temp);
2653
2654 POSTING_READ(reg);
2655 udelay(150);
2656
01a415fd
DV		 2657 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2658 I915_READ(FDI_RX_IIR(pipe)));
2659
357555c0
JB		 2660 /* enable CPU FDI TX and PCH FDI RX */
2661 reg = FDI_TX_CTL(pipe);
2662 temp = I915_READ(reg);
627eb5a3
DV		 2663 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2664 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
357555c0
JB		 2665 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
2666 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
2667 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2668 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
c4f9c4c2 2669 temp |= FDI_COMPOSITE_SYNC;
357555c0
JB		 2670 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2671
d74cf324
DV		 2672 I915_WRITE(FDI_RX_MISC(pipe),
2673 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2674
357555c0
JB		 2675 reg = FDI_RX_CTL(pipe);
2676 temp = I915_READ(reg);
2677 temp &= ~FDI_LINK_TRAIN_AUTO;
2678 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2679 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
c4f9c4c2 2680 temp |= FDI_COMPOSITE_SYNC;
357555c0
JB		 2681 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2682
2683 POSTING_READ(reg);
2684 udelay(150);
2685
0206e353 2686 for (i = 0; i < 4; i++) {
357555c0
JB		 2687 reg = FDI_TX_CTL(pipe);
2688 temp = I915_READ(reg);
2689 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2690 temp |= snb_b_fdi_train_param[i];
2691 I915_WRITE(reg, temp);
2692
2693 POSTING_READ(reg);
2694 udelay(500);
2695
2696 reg = FDI_RX_IIR(pipe);
2697 temp = I915_READ(reg);
2698 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2699
2700 if (temp & FDI_RX_BIT_LOCK ||
2701 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
2702 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
01a415fd 2703 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", i);
357555c0
JB		 2704 break;
2705 }
2706 }
2707 if (i == 4)
2708 DRM_ERROR("FDI train 1 fail!\n");
2709
2710 /* Train 2 */
2711 reg = FDI_TX_CTL(pipe);
2712 temp = I915_READ(reg);
2713 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2714 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
2715 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2716 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2717 I915_WRITE(reg, temp);
2718
2719 reg = FDI_RX_CTL(pipe);
2720 temp = I915_READ(reg);
2721 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2722 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2723 I915_WRITE(reg, temp);
2724
2725 POSTING_READ(reg);
2726 udelay(150);
2727
0206e353 2728 for (i = 0; i < 4; i++) {
357555c0
JB		 2729 reg = FDI_TX_CTL(pipe);
2730 temp = I915_READ(reg);
2731 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2732 temp |= snb_b_fdi_train_param[i];
2733 I915_WRITE(reg, temp);
2734
2735 POSTING_READ(reg);
2736 udelay(500);
2737
2738 reg = FDI_RX_IIR(pipe);
2739 temp = I915_READ(reg);
2740 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2741
2742 if (temp & FDI_RX_SYMBOL_LOCK) {
2743 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
01a415fd 2744 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", i);
357555c0
JB		 2745 break;
2746 }
2747 }
2748 if (i == 4)
2749 DRM_ERROR("FDI train 2 fail!\n");
2750
2751 DRM_DEBUG_KMS("FDI train done.\n");
2752}
2753
88cefb6c 2754static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
2c07245f 2755{
88cefb6c 2756 struct drm_device *dev = intel_crtc->base.dev;
2c07245f 2757 struct drm_i915_private *dev_priv = dev->dev_private;
2c07245f 2758 int pipe = intel_crtc->pipe;
5eddb70b 2759 u32 reg, temp;
79e53945 2760
c64e311e 2761
c98e9dcf 2762 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
5eddb70b
CW		 2763 reg = FDI_RX_CTL(pipe);
2764 temp = I915_READ(reg);
627eb5a3
DV		 2765 temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
2766 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
dfd07d72 2767 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
5eddb70b
CW		 2768 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
2769
2770 POSTING_READ(reg);
c98e9dcf
JB		 2771 udelay(200);
2772
2773 /* Switch from Rawclk to PCDclk */
5eddb70b
CW		 2774 temp = I915_READ(reg);
2775 I915_WRITE(reg, temp | FDI_PCDCLK);
2776
2777 POSTING_READ(reg);
c98e9dcf
JB		 2778 udelay(200);
2779
20749730
PZ		 2780 /* Enable CPU FDI TX PLL, always on for Ironlake */
2781 reg = FDI_TX_CTL(pipe);
2782 temp = I915_READ(reg);
2783 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
2784 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
5eddb70b 2785
20749730
PZ		 2786 POSTING_READ(reg);
2787 udelay(100);
6be4a607 2788 }
0e23b99d
JB		 2789}
2790
88cefb6c
DV		 2791static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
2792{
2793 struct drm_device *dev = intel_crtc->base.dev;
2794 struct drm_i915_private *dev_priv = dev->dev_private;
2795 int pipe = intel_crtc->pipe;
2796 u32 reg, temp;
2797
2798 /* Switch from PCDclk to Rawclk */
2799 reg = FDI_RX_CTL(pipe);
2800 temp = I915_READ(reg);
2801 I915_WRITE(reg, temp & ~FDI_PCDCLK);
2802
2803 /* Disable CPU FDI TX PLL */
2804 reg = FDI_TX_CTL(pipe);
2805 temp = I915_READ(reg);
2806 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
2807
2808 POSTING_READ(reg);
2809 udelay(100);
2810
2811 reg = FDI_RX_CTL(pipe);
2812 temp = I915_READ(reg);
2813 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
2814
2815 /* Wait for the clocks to turn off. */
2816 POSTING_READ(reg);
2817 udelay(100);
2818}
2819
0fc932b8
JB		 2820static void ironlake_fdi_disable(struct drm_crtc *crtc)
2821{
2822 struct drm_device *dev = crtc->dev;
2823 struct drm_i915_private *dev_priv = dev->dev_private;
2824 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2825 int pipe = intel_crtc->pipe;
2826 u32 reg, temp;
2827
2828 /* disable CPU FDI tx and PCH FDI rx */
2829 reg = FDI_TX_CTL(pipe);
2830 temp = I915_READ(reg);
2831 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
2832 POSTING_READ(reg);
2833
2834 reg = FDI_RX_CTL(pipe);
2835 temp = I915_READ(reg);
2836 temp &= ~(0x7 << 16);
dfd07d72 2837 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
0fc932b8
JB		 2838 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
2839
2840 POSTING_READ(reg);
2841 udelay(100);
2842
2843 /* Ironlake workaround, disable clock pointer after downing FDI */
6f06ce18
JB		 2844 if (HAS_PCH_IBX(dev)) {
2845 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
6f06ce18 2846 }
0fc932b8
JB		 2847
2848 /* still set train pattern 1 */
2849 reg = FDI_TX_CTL(pipe);
2850 temp = I915_READ(reg);
2851 temp &= ~FDI_LINK_TRAIN_NONE;
2852 temp |= FDI_LINK_TRAIN_PATTERN_1;
2853 I915_WRITE(reg, temp);
2854
2855 reg = FDI_RX_CTL(pipe);
2856 temp = I915_READ(reg);
2857 if (HAS_PCH_CPT(dev)) {
2858 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2859 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2860 } else {
2861 temp &= ~FDI_LINK_TRAIN_NONE;
2862 temp |= FDI_LINK_TRAIN_PATTERN_1;
2863 }
2864 /* BPC in FDI rx is consistent with that in PIPECONF */
2865 temp &= ~(0x07 << 16);
dfd07d72 2866 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
0fc932b8
JB		 2867 I915_WRITE(reg, temp);
2868
2869 POSTING_READ(reg);
2870 udelay(100);
2871}
2872
5bb61643
CW		 2873static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
2874{
2875 struct drm_device *dev = crtc->dev;
2876 struct drm_i915_private *dev_priv = dev->dev_private;
10d83730 2877 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5bb61643
CW		 2878 unsigned long flags;
2879 bool pending;
2880
10d83730
VS		 2881 if (i915_reset_in_progress(&dev_priv->gpu_error) ||
2882 intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
5bb61643
CW		 2883 return false;
2884
2885 spin_lock_irqsave(&dev->event_lock, flags);
2886 pending = to_intel_crtc(crtc)->unpin_work != NULL;
2887 spin_unlock_irqrestore(&dev->event_lock, flags);
2888
2889 return pending;
2890}
2891
e6c3a2a6
CW		 2892static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
2893{
0f91128d 2894 struct drm_device *dev = crtc->dev;
5bb61643 2895 struct drm_i915_private *dev_priv = dev->dev_private;
e6c3a2a6
CW		 2896
2897 if (crtc->fb == NULL)
2898 return;
2899
2c10d571
DV		 2900 WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
2901
5bb61643
CW		 2902 wait_event(dev_priv->pending_flip_queue,
2903 !intel_crtc_has_pending_flip(crtc));
2904
0f91128d
CW		 2905 mutex_lock(&dev->struct_mutex);
2906 intel_finish_fb(crtc->fb);
2907 mutex_unlock(&dev->struct_mutex);
e6c3a2a6
CW		 2908}
2909
e615efe4
ED		 2910/* Program iCLKIP clock to the desired frequency */
2911static void lpt_program_iclkip(struct drm_crtc *crtc)
2912{
2913 struct drm_device *dev = crtc->dev;
2914 struct drm_i915_private *dev_priv = dev->dev_private;
2915 u32 divsel, phaseinc, auxdiv, phasedir = 0;
2916 u32 temp;
2917
09153000
DV		 2918 mutex_lock(&dev_priv->dpio_lock);
2919
e615efe4
ED		 2920 /* It is necessary to ungate the pixclk gate prior to programming
2921 * the divisors, and gate it back when it is done.
2922 */
2923 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
2924
2925 /* Disable SSCCTL */
2926 intel_sbi_write(dev_priv, SBI_SSCCTL6,
988d6ee8
PZ		 2927 intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) |
2928 SBI_SSCCTL_DISABLE,
2929 SBI_ICLK);
e615efe4
ED		 2930
2931 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
2932 if (crtc->mode.clock == 20000) {
2933 auxdiv = 1;
2934 divsel = 0x41;
2935 phaseinc = 0x20;
2936 } else {
2937 /* The iCLK virtual clock root frequency is in MHz,
2938 * but the crtc->mode.clock in in KHz. To get the divisors,
2939 * it is necessary to divide one by another, so we
2940 * convert the virtual clock precision to KHz here for higher
2941 * precision.
2942 */
2943 u32 iclk_virtual_root_freq = 172800 * 1000;
2944 u32 iclk_pi_range = 64;
2945 u32 desired_divisor, msb_divisor_value, pi_value;
2946
2947 desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock);
2948 msb_divisor_value = desired_divisor / iclk_pi_range;
2949 pi_value = desired_divisor % iclk_pi_range;
2950
2951 auxdiv = 0;
2952 divsel = msb_divisor_value - 2;
2953 phaseinc = pi_value;
2954 }
2955
2956 /* This should not happen with any sane values */
2957 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
2958 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
2959 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
2960 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
2961
2962 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
2963 crtc->mode.clock,
2964 auxdiv,
2965 divsel,
2966 phasedir,
2967 phaseinc);
2968
2969 /* Program SSCDIVINTPHASE6 */
988d6ee8 2970 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
e615efe4
ED		 2971 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
2972 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
2973 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
2974 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
2975 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
2976 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
988d6ee8 2977 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
e615efe4
ED		 2978
2979 /* Program SSCAUXDIV */
988d6ee8 2980 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
e615efe4
ED		 2981 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
2982 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
988d6ee8 2983 intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
e615efe4
ED		 2984
2985 /* Enable modulator and associated divider */
988d6ee8 2986 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
e615efe4 2987 temp &= ~SBI_SSCCTL_DISABLE;
988d6ee8 2988 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
e615efe4
ED		 2989
2990 /* Wait for initialization time */
2991 udelay(24);
2992
2993 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
09153000
DV		 2994
2995 mutex_unlock(&dev_priv->dpio_lock);
e615efe4
ED		 2996}
2997
275f01b2
DV		 2998static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc,
2999 enum pipe pch_transcoder)
3000{
3001 struct drm_device *dev = crtc->base.dev;
3002 struct drm_i915_private *dev_priv = dev->dev_private;
3003 enum transcoder cpu_transcoder = crtc->config.cpu_transcoder;
3004
3005 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder),
3006 I915_READ(HTOTAL(cpu_transcoder)));
3007 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder),
3008 I915_READ(HBLANK(cpu_transcoder)));
3009 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder),
3010 I915_READ(HSYNC(cpu_transcoder)));
3011
3012 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder),
3013 I915_READ(VTOTAL(cpu_transcoder)));
3014 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder),
3015 I915_READ(VBLANK(cpu_transcoder)));
3016 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder),
3017 I915_READ(VSYNC(cpu_transcoder)));
3018 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder),
3019 I915_READ(VSYNCSHIFT(cpu_transcoder)));
3020}
3021
f67a559d
JB		 3022/*
3023 * Enable PCH resources required for PCH ports:
3024 * - PCH PLLs
3025 * - FDI training & RX/TX
3026 * - update transcoder timings
3027 * - DP transcoding bits
3028 * - transcoder
3029 */
3030static void ironlake_pch_enable(struct drm_crtc *crtc)
0e23b99d
JB		 3031{
3032 struct drm_device *dev = crtc->dev;
3033 struct drm_i915_private *dev_priv = dev->dev_private;
3034 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3035 int pipe = intel_crtc->pipe;
ee7b9f93 3036 u32 reg, temp;
2c07245f 3037
ab9412ba 3038 assert_pch_transcoder_disabled(dev_priv, pipe);
e7e164db 3039
cd986abb
DV		 3040 /* Write the TU size bits before fdi link training, so that error
3041 * detection works. */
3042 I915_WRITE(FDI_RX_TUSIZE1(pipe),
3043 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
3044
c98e9dcf 3045 /* For PCH output, training FDI link */
674cf967 3046 dev_priv->display.fdi_link_train(crtc);
2c07245f 3047
572deb37
DV		 3048 /* XXX: pch pll's can be enabled any time before we enable the PCH
3049 * transcoder, and we actually should do this to not upset any PCH
3050 * transcoder that already use the clock when we share it.
3051 *
3052 * Note that enable_pch_pll tries to do the right thing, but get_pch_pll
3053 * unconditionally resets the pll - we need that to have the right LVDS
3054 * enable sequence. */
b6b4e185 3055 ironlake_enable_pch_pll(intel_crtc);
6f13b7b5 3056
303b81e0 3057 if (HAS_PCH_CPT(dev)) {
ee7b9f93 3058 u32 sel;
4b645f14 3059
c98e9dcf 3060 temp = I915_READ(PCH_DPLL_SEL);
ee7b9f93
JB		 3061 switch (pipe) {
3062 default:
3063 case 0:
3064 temp |= TRANSA_DPLL_ENABLE;
3065 sel = TRANSA_DPLLB_SEL;
3066 break;
3067 case 1:
3068 temp |= TRANSB_DPLL_ENABLE;
3069 sel = TRANSB_DPLLB_SEL;
3070 break;
3071 case 2:
3072 temp |= TRANSC_DPLL_ENABLE;
3073 sel = TRANSC_DPLLB_SEL;
3074 break;
d64311ab 3075 }
ee7b9f93
JB		 3076 if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B)
3077 temp |= sel;
3078 else
3079 temp &= ~sel;
c98e9dcf 3080 I915_WRITE(PCH_DPLL_SEL, temp);
c98e9dcf 3081 }
5eddb70b 3082
d9b6cb56
JB		 3083 /* set transcoder timing, panel must allow it */
3084 assert_panel_unlocked(dev_priv, pipe);
275f01b2 3085 ironlake_pch_transcoder_set_timings(intel_crtc, pipe);
8db9d77b 3086
303b81e0 3087 intel_fdi_normal_train(crtc);
5e84e1a4 3088
c98e9dcf
JB		 3089 /* For PCH DP, enable TRANS_DP_CTL */
3090 if (HAS_PCH_CPT(dev) &&
417e822d
KP		 3091 (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
3092 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
dfd07d72 3093 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
5eddb70b
CW		 3094 reg = TRANS_DP_CTL(pipe);
3095 temp = I915_READ(reg);
3096 temp &= ~(TRANS_DP_PORT_SEL_MASK |
220cad3c
EA		 3097 TRANS_DP_SYNC_MASK |
3098 TRANS_DP_BPC_MASK);
5eddb70b
CW		 3099 temp |= (TRANS_DP_OUTPUT_ENABLE |
3100 TRANS_DP_ENH_FRAMING);
9325c9f0 3101 temp |= bpc << 9; /* same format but at 11:9 */
c98e9dcf
JB		 3102
3103 if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
5eddb70b 3104 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
c98e9dcf 3105 if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
5eddb70b 3106 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
c98e9dcf
JB		 3107
3108 switch (intel_trans_dp_port_sel(crtc)) {
3109 case PCH_DP_B:
5eddb70b 3110 temp |= TRANS_DP_PORT_SEL_B;
c98e9dcf
JB		 3111 break;
3112 case PCH_DP_C:
5eddb70b 3113 temp |= TRANS_DP_PORT_SEL_C;
c98e9dcf
JB		 3114 break;
3115 case PCH_DP_D:
5eddb70b 3116 temp |= TRANS_DP_PORT_SEL_D;
c98e9dcf
JB		 3117 break;
3118 default:
e95d41e1 3119 BUG();
32f9d658 3120 }
2c07245f 3121
5eddb70b 3122 I915_WRITE(reg, temp);
6be4a607 3123 }
b52eb4dc 3124
b8a4f404 3125 ironlake_enable_pch_transcoder(dev_priv, pipe);
f67a559d
JB		 3126}
3127
1507e5bd
PZ		 3128static void lpt_pch_enable(struct drm_crtc *crtc)
3129{
3130 struct drm_device *dev = crtc->dev;
3131 struct drm_i915_private *dev_priv = dev->dev_private;
3132 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 3133 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
1507e5bd 3134
ab9412ba 3135 assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
1507e5bd 3136
8c52b5e8 3137 lpt_program_iclkip(crtc);
1507e5bd 3138
0540e488 3139 /* Set transcoder timing. */
275f01b2 3140 ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A);
1507e5bd 3141
937bb610 3142 lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
f67a559d
JB		 3143}
3144
ee7b9f93
JB		 3145static void intel_put_pch_pll(struct intel_crtc *intel_crtc)
3146{
3147 struct intel_pch_pll *pll = intel_crtc->pch_pll;
3148
3149 if (pll == NULL)
3150 return;
3151
3152 if (pll->refcount == 0) {
3153 WARN(1, "bad PCH PLL refcount\n");
3154 return;
3155 }
3156
3157 --pll->refcount;
3158 intel_crtc->pch_pll = NULL;
3159}
3160
3161static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp)
3162{
3163 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
3164 struct intel_pch_pll *pll;
3165 int i;
3166
3167 pll = intel_crtc->pch_pll;
3168 if (pll) {
3169 DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n",
3170 intel_crtc->base.base.id, pll->pll_reg);
3171 goto prepare;
3172 }
3173
98b6bd99
DV		 3174 if (HAS_PCH_IBX(dev_priv->dev)) {
3175 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3176 i = intel_crtc->pipe;
3177 pll = &dev_priv->pch_plls[i];
3178
3179 DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n",
3180 intel_crtc->base.base.id, pll->pll_reg);
3181
3182 goto found;
3183 }
3184
ee7b9f93
JB		 3185 for (i = 0; i < dev_priv->num_pch_pll; i++) {
3186 pll = &dev_priv->pch_plls[i];
3187
3188 /* Only want to check enabled timings first */
3189 if (pll->refcount == 0)
3190 continue;
3191
3192 if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) &&
3193 fp == I915_READ(pll->fp0_reg)) {
3194 DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n",
3195 intel_crtc->base.base.id,
3196 pll->pll_reg, pll->refcount, pll->active);
3197
3198 goto found;
3199 }
3200 }
3201
3202 /* Ok no matching timings, maybe there's a free one? */
3203 for (i = 0; i < dev_priv->num_pch_pll; i++) {
3204 pll = &dev_priv->pch_plls[i];
3205 if (pll->refcount == 0) {
3206 DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n",
3207 intel_crtc->base.base.id, pll->pll_reg);
3208 goto found;
3209 }
3210 }
3211
3212 return NULL;
3213
3214found:
3215 intel_crtc->pch_pll = pll;
3216 pll->refcount++;
84f44ce7 3217 DRM_DEBUG_DRIVER("using pll %d for pipe %c\n", i, pipe_name(intel_crtc->pipe));
ee7b9f93
JB		 3218prepare: /* separate function? */
3219 DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg);
ee7b9f93 3220
e04c7350
CW		 3221 /* Wait for the clocks to stabilize before rewriting the regs */
3222 I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE);
ee7b9f93
JB		 3223 POSTING_READ(pll->pll_reg);
3224 udelay(150);
e04c7350
CW		 3225
3226 I915_WRITE(pll->fp0_reg, fp);
3227 I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE);
ee7b9f93
JB		 3228 pll->on = false;
3229 return pll;
3230}
3231
a1520318 3232static void cpt_verify_modeset(struct drm_device *dev, int pipe)
d4270e57
JB		 3233{
3234 struct drm_i915_private *dev_priv = dev->dev_private;
23670b32 3235 int dslreg = PIPEDSL(pipe);
d4270e57
JB		 3236 u32 temp;
3237
3238 temp = I915_READ(dslreg);
3239 udelay(500);
3240 if (wait_for(I915_READ(dslreg) != temp, 5)) {
d4270e57 3241 if (wait_for(I915_READ(dslreg) != temp, 5))
84f44ce7 3242 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe));
d4270e57
JB		 3243 }
3244}
3245
b074cec8
JB		 3246static void ironlake_pfit_enable(struct intel_crtc *crtc)
3247{
3248 struct drm_device *dev = crtc->base.dev;
3249 struct drm_i915_private *dev_priv = dev->dev_private;
3250 int pipe = crtc->pipe;
3251
0ef37f3f 3252 if (crtc->config.pch_pfit.size) {
b074cec8
JB		 3253 /* Force use of hard-coded filter coefficients
3254 * as some pre-programmed values are broken,
3255 * e.g. x201.
3256 */
3257 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
3258 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
3259 PF_PIPE_SEL_IVB(pipe));
3260 else
3261 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
3262 I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos);
3263 I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size);
3264 }
3265}
3266
f67a559d
JB		 3267static void ironlake_crtc_enable(struct drm_crtc *crtc)
3268{
3269 struct drm_device *dev = crtc->dev;
3270 struct drm_i915_private *dev_priv = dev->dev_private;
3271 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3272 struct intel_encoder *encoder;
f67a559d
JB		 3273 int pipe = intel_crtc->pipe;
3274 int plane = intel_crtc->plane;
3275 u32 temp;
f67a559d 3276
08a48469
DV		 3277 WARN_ON(!crtc->enabled);
3278
f67a559d
JB		 3279 if (intel_crtc->active)
3280 return;
3281
3282 intel_crtc->active = true;
8664281b
PZ		 3283
3284 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3285 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3286
f67a559d
JB		 3287 intel_update_watermarks(dev);
3288
3289 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
3290 temp = I915_READ(PCH_LVDS);
3291 if ((temp & LVDS_PORT_EN) == 0)
3292 I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN);
3293 }
3294
f67a559d 3295
5bfe2ac0 3296 if (intel_crtc->config.has_pch_encoder) {
fff367c7
DV		 3297 /* Note: FDI PLL enabling _must_ be done before we enable the
3298 * cpu pipes, hence this is separate from all the other fdi/pch
3299 * enabling. */
88cefb6c 3300 ironlake_fdi_pll_enable(intel_crtc);
46b6f814
DV		 3301 } else {
3302 assert_fdi_tx_disabled(dev_priv, pipe);
3303 assert_fdi_rx_disabled(dev_priv, pipe);
3304 }
f67a559d 3305
bf49ec8c
DV		 3306 for_each_encoder_on_crtc(dev, crtc, encoder)
3307 if (encoder->pre_enable)
3308 encoder->pre_enable(encoder);
f67a559d
JB		 3309
3310 /* Enable panel fitting for LVDS */
b074cec8 3311 ironlake_pfit_enable(intel_crtc);
f67a559d 3312
9c54c0dd
JB		 3313 /*
3314 * On ILK+ LUT must be loaded before the pipe is running but with
3315 * clocks enabled
3316 */
3317 intel_crtc_load_lut(crtc);
3318
5bfe2ac0
DV		 3319 intel_enable_pipe(dev_priv, pipe,
3320 intel_crtc->config.has_pch_encoder);
f67a559d
JB		 3321 intel_enable_plane(dev_priv, plane, pipe);
3322
5bfe2ac0 3323 if (intel_crtc->config.has_pch_encoder)
f67a559d 3324 ironlake_pch_enable(crtc);
c98e9dcf 3325
d1ebd816 3326 mutex_lock(&dev->struct_mutex);
bed4a673 3327 intel_update_fbc(dev);
d1ebd816
BW		 3328 mutex_unlock(&dev->struct_mutex);
3329
6b383a7f 3330 intel_crtc_update_cursor(crtc, true);
ef9c3aee 3331
fa5c73b1
DV		 3332 for_each_encoder_on_crtc(dev, crtc, encoder)
3333 encoder->enable(encoder);
61b77ddd
DV		 3334
3335 if (HAS_PCH_CPT(dev))
a1520318 3336 cpt_verify_modeset(dev, intel_crtc->pipe);
6ce94100
DV		 3337
3338 /*
3339 * There seems to be a race in PCH platform hw (at least on some
3340 * outputs) where an enabled pipe still completes any pageflip right
3341 * away (as if the pipe is off) instead of waiting for vblank. As soon
3342 * as the first vblank happend, everything works as expected. Hence just
3343 * wait for one vblank before returning to avoid strange things
3344 * happening.
3345 */
3346 intel_wait_for_vblank(dev, intel_crtc->pipe);
6be4a607
JB		 3347}
3348
4f771f10
PZ		 3349static void haswell_crtc_enable(struct drm_crtc *crtc)
3350{
3351 struct drm_device *dev = crtc->dev;
3352 struct drm_i915_private *dev_priv = dev->dev_private;
3353 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3354 struct intel_encoder *encoder;
3355 int pipe = intel_crtc->pipe;
3356 int plane = intel_crtc->plane;
4f771f10
PZ		 3357
3358 WARN_ON(!crtc->enabled);
3359
3360 if (intel_crtc->active)
3361 return;
3362
3363 intel_crtc->active = true;
8664281b
PZ		 3364
3365 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3366 if (intel_crtc->config.has_pch_encoder)
3367 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3368
4f771f10
PZ		 3369 intel_update_watermarks(dev);
3370
5bfe2ac0 3371 if (intel_crtc->config.has_pch_encoder)
04945641 3372 dev_priv->display.fdi_link_train(crtc);
4f771f10
PZ		 3373
3374 for_each_encoder_on_crtc(dev, crtc, encoder)
3375 if (encoder->pre_enable)
3376 encoder->pre_enable(encoder);
3377
1f544388 3378 intel_ddi_enable_pipe_clock(intel_crtc);
4f771f10 3379
1f544388 3380 /* Enable panel fitting for eDP */
b074cec8 3381 ironlake_pfit_enable(intel_crtc);
4f771f10
PZ		 3382
3383 /*
3384 * On ILK+ LUT must be loaded before the pipe is running but with
3385 * clocks enabled
3386 */
3387 intel_crtc_load_lut(crtc);
3388
1f544388 3389 intel_ddi_set_pipe_settings(crtc);
8228c251 3390 intel_ddi_enable_transcoder_func(crtc);
4f771f10 3391
5bfe2ac0
DV		 3392 intel_enable_pipe(dev_priv, pipe,
3393 intel_crtc->config.has_pch_encoder);
4f771f10
PZ		 3394 intel_enable_plane(dev_priv, plane, pipe);
3395
5bfe2ac0 3396 if (intel_crtc->config.has_pch_encoder)
1507e5bd 3397 lpt_pch_enable(crtc);
4f771f10
PZ		 3398
3399 mutex_lock(&dev->struct_mutex);
3400 intel_update_fbc(dev);
3401 mutex_unlock(&dev->struct_mutex);
3402
3403 intel_crtc_update_cursor(crtc, true);
3404
3405 for_each_encoder_on_crtc(dev, crtc, encoder)
3406 encoder->enable(encoder);
3407
4f771f10
PZ		 3408 /*
3409 * There seems to be a race in PCH platform hw (at least on some
3410 * outputs) where an enabled pipe still completes any pageflip right
3411 * away (as if the pipe is off) instead of waiting for vblank. As soon
3412 * as the first vblank happend, everything works as expected. Hence just
3413 * wait for one vblank before returning to avoid strange things
3414 * happening.
3415 */
3416 intel_wait_for_vblank(dev, intel_crtc->pipe);
3417}
3418
6be4a607
JB		 3419static void ironlake_crtc_disable(struct drm_crtc *crtc)
3420{
3421 struct drm_device *dev = crtc->dev;
3422 struct drm_i915_private *dev_priv = dev->dev_private;
3423 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3424 struct intel_encoder *encoder;
6be4a607
JB		 3425 int pipe = intel_crtc->pipe;
3426 int plane = intel_crtc->plane;
5eddb70b 3427 u32 reg, temp;
b52eb4dc 3428
ef9c3aee 3429
f7abfe8b
CW		 3430 if (!intel_crtc->active)
3431 return;
3432
ea9d758d
DV		 3433 for_each_encoder_on_crtc(dev, crtc, encoder)
3434 encoder->disable(encoder);
3435
e6c3a2a6 3436 intel_crtc_wait_for_pending_flips(crtc);
6be4a607 3437 drm_vblank_off(dev, pipe);
6b383a7f 3438 intel_crtc_update_cursor(crtc, false);
5eddb70b 3439
b24e7179 3440 intel_disable_plane(dev_priv, plane, pipe);
913d8d11 3441
973d04f9
CW		 3442 if (dev_priv->cfb_plane == plane)
3443 intel_disable_fbc(dev);
2c07245f 3444
8664281b 3445 intel_set_pch_fifo_underrun_reporting(dev, pipe, false);
b24e7179 3446 intel_disable_pipe(dev_priv, pipe);
32f9d658 3447
6be4a607 3448 /* Disable PF */
9db4a9c7
JB		 3449 I915_WRITE(PF_CTL(pipe), 0);
3450 I915_WRITE(PF_WIN_SZ(pipe), 0);
2c07245f 3451
bf49ec8c
DV		 3452 for_each_encoder_on_crtc(dev, crtc, encoder)
3453 if (encoder->post_disable)
3454 encoder->post_disable(encoder);
2c07245f 3455
0fc932b8 3456 ironlake_fdi_disable(crtc);
249c0e64 3457
b8a4f404 3458 ironlake_disable_pch_transcoder(dev_priv, pipe);
8664281b 3459 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
913d8d11 3460
6be4a607
JB		 3461 if (HAS_PCH_CPT(dev)) {
3462 /* disable TRANS_DP_CTL */
5eddb70b
CW		 3463 reg = TRANS_DP_CTL(pipe);
3464 temp = I915_READ(reg);
3465 temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK);
cb3543c6 3466 temp |= TRANS_DP_PORT_SEL_NONE;
5eddb70b 3467 I915_WRITE(reg, temp);
6be4a607
JB		 3468
3469 /* disable DPLL_SEL */
3470 temp = I915_READ(PCH_DPLL_SEL);
9db4a9c7
JB		 3471 switch (pipe) {
3472 case 0:
d64311ab 3473 temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL);
9db4a9c7
JB		 3474 break;
3475 case 1:
6be4a607 3476 temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
9db4a9c7
JB		 3477 break;
3478 case 2:
4b645f14 3479 /* C shares PLL A or B */
d64311ab 3480 temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL);
9db4a9c7
JB		 3481 break;
3482 default:
3483 BUG(); /* wtf */
3484 }
6be4a607 3485 I915_WRITE(PCH_DPLL_SEL, temp);
6be4a607 3486 }
e3421a18 3487
6be4a607 3488 /* disable PCH DPLL */
ee7b9f93 3489 intel_disable_pch_pll(intel_crtc);
8db9d77b 3490
88cefb6c 3491 ironlake_fdi_pll_disable(intel_crtc);
6b383a7f 3492
f7abfe8b 3493 intel_crtc->active = false;
6b383a7f 3494 intel_update_watermarks(dev);
d1ebd816
BW		 3495
3496 mutex_lock(&dev->struct_mutex);
6b383a7f 3497 intel_update_fbc(dev);
d1ebd816 3498 mutex_unlock(&dev->struct_mutex);
6be4a607 3499}
1b3c7a47 3500
4f771f10 3501static void haswell_crtc_disable(struct drm_crtc *crtc)
ee7b9f93 3502{
4f771f10
PZ		 3503 struct drm_device *dev = crtc->dev;
3504 struct drm_i915_private *dev_priv = dev->dev_private;
ee7b9f93 3505 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4f771f10
PZ		 3506 struct intel_encoder *encoder;
3507 int pipe = intel_crtc->pipe;
3508 int plane = intel_crtc->plane;
3b117c8f 3509 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
ee7b9f93 3510
4f771f10
PZ		 3511 if (!intel_crtc->active)
3512 return;
3513
3514 for_each_encoder_on_crtc(dev, crtc, encoder)
3515 encoder->disable(encoder);
3516
3517 intel_crtc_wait_for_pending_flips(crtc);
3518 drm_vblank_off(dev, pipe);
3519 intel_crtc_update_cursor(crtc, false);
3520
3521 intel_disable_plane(dev_priv, plane, pipe);
3522
3523 if (dev_priv->cfb_plane == plane)
3524 intel_disable_fbc(dev);
3525
8664281b
PZ		 3526 if (intel_crtc->config.has_pch_encoder)
3527 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false);
4f771f10
PZ		 3528 intel_disable_pipe(dev_priv, pipe);
3529
ad80a810 3530 intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
4f771f10 3531
f7708f78
PZ		 3532 /* XXX: Once we have proper panel fitter state tracking implemented with
3533 * hardware state read/check support we should switch to only disable
3534 * the panel fitter when we know it's used. */
3535 if (intel_using_power_well(dev)) {
3536 I915_WRITE(PF_CTL(pipe), 0);
3537 I915_WRITE(PF_WIN_SZ(pipe), 0);
3538 }
4f771f10 3539
1f544388 3540 intel_ddi_disable_pipe_clock(intel_crtc);
4f771f10
PZ		 3541
3542 for_each_encoder_on_crtc(dev, crtc, encoder)
3543 if (encoder->post_disable)
3544 encoder->post_disable(encoder);
3545
88adfff1 3546 if (intel_crtc->config.has_pch_encoder) {
ab4d966c 3547 lpt_disable_pch_transcoder(dev_priv);
8664281b 3548 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
1ad960f2 3549 intel_ddi_fdi_disable(crtc);
83616634 3550 }
4f771f10
PZ		 3551
3552 intel_crtc->active = false;
3553 intel_update_watermarks(dev);
3554
3555 mutex_lock(&dev->struct_mutex);
3556 intel_update_fbc(dev);
3557 mutex_unlock(&dev->struct_mutex);
3558}
3559
ee7b9f93
JB		 3560static void ironlake_crtc_off(struct drm_crtc *crtc)
3561{
3562 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3563 intel_put_pch_pll(intel_crtc);
3564}
3565
6441ab5f
PZ		 3566static void haswell_crtc_off(struct drm_crtc *crtc)
3567{
a5c961d1
PZ		 3568 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3569
3570 /* Stop saying we're using TRANSCODER_EDP because some other CRTC might
3571 * start using it. */
3b117c8f 3572 intel_crtc->config.cpu_transcoder = (enum transcoder) intel_crtc->pipe;
a5c961d1 3573
6441ab5f
PZ		 3574 intel_ddi_put_crtc_pll(crtc);
3575}
3576
02e792fb
DV		 3577static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
3578{
02e792fb 3579 if (!enable && intel_crtc->overlay) {
23f09ce3 3580 struct drm_device *dev = intel_crtc->base.dev;
ce453d81 3581 struct drm_i915_private *dev_priv = dev->dev_private;
03f77ea5 3582
23f09ce3 3583 mutex_lock(&dev->struct_mutex);
ce453d81
CW		 3584 dev_priv->mm.interruptible = false;
3585 (void) intel_overlay_switch_off(intel_crtc->overlay);
3586 dev_priv->mm.interruptible = true;
23f09ce3 3587 mutex_unlock(&dev->struct_mutex);
02e792fb 3588 }
02e792fb 3589
5dcdbcb0
CW		 3590 /* Let userspace switch the overlay on again. In most cases userspace
3591 * has to recompute where to put it anyway.
3592 */
02e792fb
DV		 3593}
3594
61bc95c1
EE		 3595/**
3596 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
3597 * cursor plane briefly if not already running after enabling the display
3598 * plane.
3599 * This workaround avoids occasional blank screens when self refresh is
3600 * enabled.
3601 */
3602static void
3603g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe)
3604{
3605 u32 cntl = I915_READ(CURCNTR(pipe));
3606
3607 if ((cntl & CURSOR_MODE) == 0) {
3608 u32 fw_bcl_self = I915_READ(FW_BLC_SELF);
3609
3610 I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN);
3611 I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX);
3612 intel_wait_for_vblank(dev_priv->dev, pipe);
3613 I915_WRITE(CURCNTR(pipe), cntl);
3614 I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe)));
3615 I915_WRITE(FW_BLC_SELF, fw_bcl_self);
3616 }
3617}
3618
2dd24552
JB		 3619static void i9xx_pfit_enable(struct intel_crtc *crtc)
3620{
3621 struct drm_device *dev = crtc->base.dev;
3622 struct drm_i915_private *dev_priv = dev->dev_private;
3623 struct intel_crtc_config *pipe_config = &crtc->config;
3624
3625 if (!(intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
3626 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)))
3627 return;
3628
3629 WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
3630 assert_pipe_disabled(dev_priv, crtc->pipe);
3631
3632 /*
3633 * Enable automatic panel scaling so that non-native modes
3634 * fill the screen. The panel fitter should only be
3635 * adjusted whilst the pipe is disabled, according to
3636 * register description and PRM.
3637 */
3638 DRM_DEBUG_KMS("applying panel-fitter: %x, %x\n",
b074cec8
JB		 3639 pipe_config->gmch_pfit.control,
3640 pipe_config->gmch_pfit.pgm_ratios);
2dd24552 3641
b074cec8
JB		 3642 I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios);
3643 I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control);
5a80c45c
DV		 3644
3645 /* Border color in case we don't scale up to the full screen. Black by
3646 * default, change to something else for debugging. */
3647 I915_WRITE(BCLRPAT(crtc->pipe), 0);
2dd24552
JB		 3648}
3649
89b667f8
JB		 3650static void valleyview_crtc_enable(struct drm_crtc *crtc)
3651{
3652 struct drm_device *dev = crtc->dev;
3653 struct drm_i915_private *dev_priv = dev->dev_private;
3654 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3655 struct intel_encoder *encoder;
3656 int pipe = intel_crtc->pipe;
3657 int plane = intel_crtc->plane;
3658
3659 WARN_ON(!crtc->enabled);
3660
3661 if (intel_crtc->active)
3662 return;
3663
3664 intel_crtc->active = true;
3665 intel_update_watermarks(dev);
3666
3667 mutex_lock(&dev_priv->dpio_lock);
3668
3669 for_each_encoder_on_crtc(dev, crtc, encoder)
3670 if (encoder->pre_pll_enable)
3671 encoder->pre_pll_enable(encoder);
3672
3673 intel_enable_pll(dev_priv, pipe);
3674
3675 for_each_encoder_on_crtc(dev, crtc, encoder)
3676 if (encoder->pre_enable)
3677 encoder->pre_enable(encoder);
3678
3679 /* VLV wants encoder enabling _before_ the pipe is up. */
3680 for_each_encoder_on_crtc(dev, crtc, encoder)
3681 encoder->enable(encoder);
3682
2dd24552
JB		 3683 /* Enable panel fitting for eDP */
3684 i9xx_pfit_enable(intel_crtc);
3685
89b667f8
JB		 3686 intel_enable_pipe(dev_priv, pipe, false);
3687 intel_enable_plane(dev_priv, plane, pipe);
3688
3689 intel_crtc_load_lut(crtc);
3690 intel_update_fbc(dev);
3691
3692 /* Give the overlay scaler a chance to enable if it's on this pipe */
3693 intel_crtc_dpms_overlay(intel_crtc, true);
3694 intel_crtc_update_cursor(crtc, true);
3695
3696 mutex_unlock(&dev_priv->dpio_lock);
3697}
3698
0b8765c6 3699static void i9xx_crtc_enable(struct drm_crtc *crtc)
79e53945
JB		 3700{
3701 struct drm_device *dev = crtc->dev;
79e53945
JB		 3702 struct drm_i915_private *dev_priv = dev->dev_private;
3703 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3704 struct intel_encoder *encoder;
79e53945 3705 int pipe = intel_crtc->pipe;
80824003 3706 int plane = intel_crtc->plane;
79e53945 3707
08a48469
DV		 3708 WARN_ON(!crtc->enabled);
3709
f7abfe8b
CW		 3710 if (intel_crtc->active)
3711 return;
3712
3713 intel_crtc->active = true;
6b383a7f
CW		 3714 intel_update_watermarks(dev);
3715
63d7bbe9 3716 intel_enable_pll(dev_priv, pipe);
9d6d9f19
MK		 3717
3718 for_each_encoder_on_crtc(dev, crtc, encoder)
3719 if (encoder->pre_enable)
3720 encoder->pre_enable(encoder);
3721
2dd24552
JB		 3722 /* Enable panel fitting for LVDS */
3723 i9xx_pfit_enable(intel_crtc);
3724
040484af 3725 intel_enable_pipe(dev_priv, pipe, false);
b24e7179 3726 intel_enable_plane(dev_priv, plane, pipe);
61bc95c1
EE		 3727 if (IS_G4X(dev))
3728 g4x_fixup_plane(dev_priv, pipe);
79e53945 3729
0b8765c6 3730 intel_crtc_load_lut(crtc);
bed4a673 3731 intel_update_fbc(dev);
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);
6b383a7f 3735 intel_crtc_update_cursor(crtc, true);
ef9c3aee 3736
fa5c73b1
DV		 3737 for_each_encoder_on_crtc(dev, crtc, encoder)
3738 encoder->enable(encoder);
0b8765c6 3739}
79e53945 3740
87476d63
DV		 3741static void i9xx_pfit_disable(struct intel_crtc *crtc)
3742{
3743 struct drm_device *dev = crtc->base.dev;
3744 struct drm_i915_private *dev_priv = dev->dev_private;
3745 enum pipe pipe;
3746 uint32_t pctl = I915_READ(PFIT_CONTROL);
3747
3748 assert_pipe_disabled(dev_priv, crtc->pipe);
3749
3750 if (INTEL_INFO(dev)->gen >= 4)
3751 pipe = (pctl & PFIT_PIPE_MASK) >> PFIT_PIPE_SHIFT;
3752 else
3753 pipe = PIPE_B;
3754
3755 if (pipe == crtc->pipe) {
3756 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n", pctl);
3757 I915_WRITE(PFIT_CONTROL, 0);
3758 }
3759}
3760
0b8765c6
JB		 3761static void i9xx_crtc_disable(struct drm_crtc *crtc)
3762{
3763 struct drm_device *dev = crtc->dev;
3764 struct drm_i915_private *dev_priv = dev->dev_private;
3765 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ef9c3aee 3766 struct intel_encoder *encoder;
0b8765c6
JB		 3767 int pipe = intel_crtc->pipe;
3768 int plane = intel_crtc->plane;
ef9c3aee 3769
f7abfe8b
CW		 3770 if (!intel_crtc->active)
3771 return;
3772
ea9d758d
DV		 3773 for_each_encoder_on_crtc(dev, crtc, encoder)
3774 encoder->disable(encoder);
3775
0b8765c6 3776 /* Give the overlay scaler a chance to disable if it's on this pipe */
e6c3a2a6
CW		 3777 intel_crtc_wait_for_pending_flips(crtc);
3778 drm_vblank_off(dev, pipe);
0b8765c6 3779 intel_crtc_dpms_overlay(intel_crtc, false);
6b383a7f 3780 intel_crtc_update_cursor(crtc, false);
0b8765c6 3781
973d04f9
CW		 3782 if (dev_priv->cfb_plane == plane)
3783 intel_disable_fbc(dev);
79e53945 3784
b24e7179 3785 intel_disable_plane(dev_priv, plane, pipe);
b24e7179 3786 intel_disable_pipe(dev_priv, pipe);
24a1f16d 3787
87476d63 3788 i9xx_pfit_disable(intel_crtc);
24a1f16d 3789
89b667f8
JB		 3790 for_each_encoder_on_crtc(dev, crtc, encoder)
3791 if (encoder->post_disable)
3792 encoder->post_disable(encoder);
3793
63d7bbe9 3794 intel_disable_pll(dev_priv, pipe);
0b8765c6 3795
f7abfe8b 3796 intel_crtc->active = false;
6b383a7f
CW		 3797 intel_update_fbc(dev);
3798 intel_update_watermarks(dev);
0b8765c6
JB		 3799}
3800
ee7b9f93
JB		 3801static void i9xx_crtc_off(struct drm_crtc *crtc)
3802{
3803}
3804
976f8a20
DV		 3805static void intel_crtc_update_sarea(struct drm_crtc *crtc,
3806 bool enabled)
2c07245f
ZW		 3807{
3808 struct drm_device *dev = crtc->dev;
3809 struct drm_i915_master_private *master_priv;
3810 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3811 int pipe = intel_crtc->pipe;
79e53945
JB		 3812
3813 if (!dev->primary->master)
3814 return;
3815
3816 master_priv = dev->primary->master->driver_priv;
3817 if (!master_priv->sarea_priv)
3818 return;
3819
79e53945
JB		 3820 switch (pipe) {
3821 case 0:
3822 master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
3823 master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
3824 break;
3825 case 1:
3826 master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
3827 master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
3828 break;
3829 default:
9db4a9c7 3830 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
79e53945
JB		 3831 break;
3832 }
79e53945
JB		 3833}
3834
976f8a20
DV		 3835/**
3836 * Sets the power management mode of the pipe and plane.
3837 */
3838void intel_crtc_update_dpms(struct drm_crtc *crtc)
3839{
3840 struct drm_device *dev = crtc->dev;
3841 struct drm_i915_private *dev_priv = dev->dev_private;
3842 struct intel_encoder *intel_encoder;
3843 bool enable = false;
3844
3845 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
3846 enable |= intel_encoder->connectors_active;
3847
3848 if (enable)
3849 dev_priv->display.crtc_enable(crtc);
3850 else
3851 dev_priv->display.crtc_disable(crtc);
3852
3853 intel_crtc_update_sarea(crtc, enable);
3854}
3855
cdd59983
CW		 3856static void intel_crtc_disable(struct drm_crtc *crtc)
3857{
cdd59983 3858 struct drm_device *dev = crtc->dev;
976f8a20 3859 struct drm_connector *connector;
ee7b9f93 3860 struct drm_i915_private *dev_priv = dev->dev_private;
7b9f35a6 3861 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
cdd59983 3862
976f8a20
DV		 3863 /* crtc should still be enabled when we disable it. */
3864 WARN_ON(!crtc->enabled);
3865
7b9f35a6 3866 intel_crtc->eld_vld = false;
976f8a20
DV		 3867 dev_priv->display.crtc_disable(crtc);
3868 intel_crtc_update_sarea(crtc, false);
ee7b9f93
JB		 3869 dev_priv->display.off(crtc);
3870
931872fc
CW		 3871 assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
3872 assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
cdd59983
CW		 3873
3874 if (crtc->fb) {
3875 mutex_lock(&dev->struct_mutex);
1690e1eb 3876 intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
cdd59983 3877 mutex_unlock(&dev->struct_mutex);
976f8a20
DV		 3878 crtc->fb = NULL;
3879 }
3880
3881 /* Update computed state. */
3882 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3883 if (!connector->encoder || !connector->encoder->crtc)
3884 continue;
3885
3886 if (connector->encoder->crtc != crtc)
3887 continue;
3888
3889 connector->dpms = DRM_MODE_DPMS_OFF;
3890 to_intel_encoder(connector->encoder)->connectors_active = false;
cdd59983
CW		 3891 }
3892}
3893
a261b246 3894void intel_modeset_disable(struct drm_device *dev)
79e53945 3895{
a261b246
DV		 3896 struct drm_crtc *crtc;
3897
3898 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
3899 if (crtc->enabled)
3900 intel_crtc_disable(crtc);
3901 }
79e53945
JB		 3902}
3903
ea5b213a 3904void intel_encoder_destroy(struct drm_encoder *encoder)
7e7d76c3 3905{
4ef69c7a 3906 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
ea5b213a 3907
ea5b213a
CW		 3908 drm_encoder_cleanup(encoder);
3909 kfree(intel_encoder);
7e7d76c3
JB		 3910}
3911
5ab432ef
DV		 3912/* Simple dpms helper for encodres with just one connector, no cloning and only
3913 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
3914 * state of the entire output pipe. */
3915void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
7e7d76c3 3916{
5ab432ef
DV		 3917 if (mode == DRM_MODE_DPMS_ON) {
3918 encoder->connectors_active = true;
3919
b2cabb0e 3920 intel_crtc_update_dpms(encoder->base.crtc);
5ab432ef
DV		 3921 } else {
3922 encoder->connectors_active = false;
3923
b2cabb0e 3924 intel_crtc_update_dpms(encoder->base.crtc);
5ab432ef 3925 }
79e53945
JB		 3926}
3927
0a91ca29
DV		 3928/* Cross check the actual hw state with our own modeset state tracking (and it's
3929 * internal consistency). */
b980514c 3930static void intel_connector_check_state(struct intel_connector *connector)
79e53945 3931{
0a91ca29
DV		 3932 if (connector->get_hw_state(connector)) {
3933 struct intel_encoder *encoder = connector->encoder;
3934 struct drm_crtc *crtc;
3935 bool encoder_enabled;
3936 enum pipe pipe;
3937
3938 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
3939 connector->base.base.id,
3940 drm_get_connector_name(&connector->base));
3941
3942 WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
3943 "wrong connector dpms state\n");
3944 WARN(connector->base.encoder != &encoder->base,
3945 "active connector not linked to encoder\n");
3946 WARN(!encoder->connectors_active,
3947 "encoder->connectors_active not set\n");
3948
3949 encoder_enabled = encoder->get_hw_state(encoder, &pipe);
3950 WARN(!encoder_enabled, "encoder not enabled\n");
3951 if (WARN_ON(!encoder->base.crtc))
3952 return;
3953
3954 crtc = encoder->base.crtc;
3955
3956 WARN(!crtc->enabled, "crtc not enabled\n");
3957 WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
3958 WARN(pipe != to_intel_crtc(crtc)->pipe,
3959 "encoder active on the wrong pipe\n");
3960 }
79e53945
JB		 3961}
3962
5ab432ef
DV		 3963/* Even simpler default implementation, if there's really no special case to
3964 * consider. */
3965void intel_connector_dpms(struct drm_connector *connector, int mode)
79e53945 3966{
5ab432ef 3967 struct intel_encoder *encoder = intel_attached_encoder(connector);
d4270e57 3968
5ab432ef
DV		 3969 /* All the simple cases only support two dpms states. */
3970 if (mode != DRM_MODE_DPMS_ON)
3971 mode = DRM_MODE_DPMS_OFF;
d4270e57 3972
5ab432ef
DV		 3973 if (mode == connector->dpms)
3974 return;
3975
3976 connector->dpms = mode;
3977
3978 /* Only need to change hw state when actually enabled */
3979 if (encoder->base.crtc)
3980 intel_encoder_dpms(encoder, mode);
3981 else
8af6cf88 3982 WARN_ON(encoder->connectors_active != false);
0a91ca29 3983
b980514c 3984 intel_modeset_check_state(connector->dev);
79e53945
JB		 3985}
3986
f0947c37
DV		 3987/* Simple connector->get_hw_state implementation for encoders that support only
3988 * one connector and no cloning and hence the encoder state determines the state
3989 * of the connector. */
3990bool intel_connector_get_hw_state(struct intel_connector *connector)
ea5b213a 3991{
24929352 3992 enum pipe pipe = 0;
f0947c37 3993 struct intel_encoder *encoder = connector->encoder;
ea5b213a 3994
f0947c37 3995 return encoder->get_hw_state(encoder, &pipe);
ea5b213a
CW		 3996}
3997
1857e1da
DV		 3998static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
3999 struct intel_crtc_config *pipe_config)
4000{
4001 struct drm_i915_private *dev_priv = dev->dev_private;
4002 struct intel_crtc *pipe_B_crtc =
4003 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
4004
4005 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
4006 pipe_name(pipe), pipe_config->fdi_lanes);
4007 if (pipe_config->fdi_lanes > 4) {
4008 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
4009 pipe_name(pipe), pipe_config->fdi_lanes);
4010 return false;
4011 }
4012
4013 if (IS_HASWELL(dev)) {
4014 if (pipe_config->fdi_lanes > 2) {
4015 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
4016 pipe_config->fdi_lanes);
4017 return false;
4018 } else {
4019 return true;
4020 }
4021 }
4022
4023 if (INTEL_INFO(dev)->num_pipes == 2)
4024 return true;
4025
4026 /* Ivybridge 3 pipe is really complicated */
4027 switch (pipe) {
4028 case PIPE_A:
4029 return true;
4030 case PIPE_B:
4031 if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled &&
4032 pipe_config->fdi_lanes > 2) {
4033 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4034 pipe_name(pipe), pipe_config->fdi_lanes);
4035 return false;
4036 }
4037 return true;
4038 case PIPE_C:
1e833f40 4039 if (!pipe_has_enabled_pch(pipe_B_crtc) ||
1857e1da
DV		 4040 pipe_B_crtc->config.fdi_lanes <= 2) {
4041 if (pipe_config->fdi_lanes > 2) {
4042 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4043 pipe_name(pipe), pipe_config->fdi_lanes);
4044 return false;
4045 }
4046 } else {
4047 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
4048 return false;
4049 }
4050 return true;
4051 default:
4052 BUG();
4053 }
4054}
4055
e29c22c0
DV		 4056#define RETRY 1
4057static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc,
4058 struct intel_crtc_config *pipe_config)
877d48d5 4059{
1857e1da 4060 struct drm_device *dev = intel_crtc->base.dev;
877d48d5
DV		 4061 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
4062 int target_clock, lane, link_bw;
e29c22c0 4063 bool setup_ok, needs_recompute = false;
877d48d5 4064
e29c22c0 4065retry:
877d48d5
DV		 4066 /* FDI is a binary signal running at ~2.7GHz, encoding
4067 * each output octet as 10 bits. The actual frequency
4068 * is stored as a divider into a 100MHz clock, and the
4069 * mode pixel clock is stored in units of 1KHz.
4070 * Hence the bw of each lane in terms of the mode signal
4071 * is:
4072 */
4073 link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
4074
4075 if (pipe_config->pixel_target_clock)
4076 target_clock = pipe_config->pixel_target_clock;
4077 else
4078 target_clock = adjusted_mode->clock;
4079
4080 lane = ironlake_get_lanes_required(target_clock, link_bw,
4081 pipe_config->pipe_bpp);
4082
4083 pipe_config->fdi_lanes = lane;
4084
4085 if (pipe_config->pixel_multiplier > 1)
4086 link_bw *= pipe_config->pixel_multiplier;
4087 intel_link_compute_m_n(pipe_config->pipe_bpp, lane, target_clock,
4088 link_bw, &pipe_config->fdi_m_n);
1857e1da 4089
e29c22c0
DV		 4090 setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev,
4091 intel_crtc->pipe, pipe_config);
4092 if (!setup_ok && pipe_config->pipe_bpp > 6*3) {
4093 pipe_config->pipe_bpp -= 2*3;
4094 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
4095 pipe_config->pipe_bpp);
4096 needs_recompute = true;
4097 pipe_config->bw_constrained = true;
4098
4099 goto retry;
4100 }
4101
4102 if (needs_recompute)
4103 return RETRY;
4104
4105 return setup_ok ? 0 : -EINVAL;
877d48d5
DV		 4106}
4107
e29c22c0
DV		 4108static int intel_crtc_compute_config(struct drm_crtc *crtc,
4109 struct intel_crtc_config *pipe_config)
79e53945 4110{
2c07245f 4111 struct drm_device *dev = crtc->dev;
b8cecdf5 4112 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
89749350 4113
bad720ff 4114 if (HAS_PCH_SPLIT(dev)) {
2c07245f 4115 /* FDI link clock is fixed at 2.7G */
b8cecdf5
DV		 4116 if (pipe_config->requested_mode.clock * 3
4117 > IRONLAKE_FDI_FREQ * 4)
e29c22c0 4118 return -EINVAL;
2c07245f 4119 }
89749350 4120
f9bef081
DV		 4121 /* All interlaced capable intel hw wants timings in frames. Note though
4122 * that intel_lvds_mode_fixup does some funny tricks with the crtc
4123 * timings, so we need to be careful not to clobber these.*/
7ae89233 4124 if (!pipe_config->timings_set)
f9bef081 4125 drm_mode_set_crtcinfo(adjusted_mode, 0);
89749350 4126
44f46b42
CW		 4127 /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes
4128 * with a hsync front porch of 0.
4129 */
4130 if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) &&
4131 adjusted_mode->hsync_start == adjusted_mode->hdisplay)
e29c22c0 4132 return -EINVAL;
44f46b42 4133
bd080ee5 4134 if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) {
5d2d38dd 4135 pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */
bd080ee5 4136 } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) {
5d2d38dd
DV		 4137 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
4138 * for lvds. */
4139 pipe_config->pipe_bpp = 8*3;
4140 }
4141
877d48d5 4142 if (pipe_config->has_pch_encoder)
1857e1da 4143 return ironlake_fdi_compute_config(to_intel_crtc(crtc), pipe_config);
877d48d5 4144
e29c22c0 4145 return 0;
79e53945
JB		 4146}
4147
25eb05fc
JB		 4148static int valleyview_get_display_clock_speed(struct drm_device *dev)
4149{
4150 return 400000; /* FIXME */
4151}
4152
e70236a8
JB		 4153static int i945_get_display_clock_speed(struct drm_device *dev)
4154{
4155 return 400000;
4156}
79e53945 4157
e70236a8 4158static int i915_get_display_clock_speed(struct drm_device *dev)
79e53945 4159{
e70236a8
JB		 4160 return 333000;
4161}
79e53945 4162
e70236a8
JB		 4163static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
4164{
4165 return 200000;
4166}
79e53945 4167
e70236a8
JB		 4168static int i915gm_get_display_clock_speed(struct drm_device *dev)
4169{
4170 u16 gcfgc = 0;
79e53945 4171
e70236a8
JB		 4172 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4173
4174 if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
4175 return 133000;
4176 else {
4177 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4178 case GC_DISPLAY_CLOCK_333_MHZ:
4179 return 333000;
4180 default:
4181 case GC_DISPLAY_CLOCK_190_200_MHZ:
4182 return 190000;
79e53945 4183 }
e70236a8
JB		 4184 }
4185}
4186
4187static int i865_get_display_clock_speed(struct drm_device *dev)
4188{
4189 return 266000;
4190}
4191
4192static int i855_get_display_clock_speed(struct drm_device *dev)
4193{
4194 u16 hpllcc = 0;
4195 /* Assume that the hardware is in the high speed state. This
4196 * should be the default.
4197 */
4198 switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
4199 case GC_CLOCK_133_200:
4200 case GC_CLOCK_100_200:
4201 return 200000;
4202 case GC_CLOCK_166_250:
4203 return 250000;
4204 case GC_CLOCK_100_133:
79e53945 4205 return 133000;
e70236a8 4206 }
79e53945 4207
e70236a8
JB		 4208 /* Shouldn't happen */
4209 return 0;
4210}
79e53945 4211
e70236a8
JB		 4212static int i830_get_display_clock_speed(struct drm_device *dev)
4213{
4214 return 133000;
79e53945
JB		 4215}
4216
2c07245f 4217static void
e69d0bc1 4218intel_reduce_ratio(uint32_t *num, uint32_t *den)
2c07245f
ZW		 4219{
4220 while (*num > 0xffffff || *den > 0xffffff) {
4221 *num >>= 1;
4222 *den >>= 1;
4223 }
4224}
4225
e69d0bc1
DV		 4226void
4227intel_link_compute_m_n(int bits_per_pixel, int nlanes,
4228 int pixel_clock, int link_clock,
4229 struct intel_link_m_n *m_n)
2c07245f 4230{
e69d0bc1 4231 m_n->tu = 64;
22ed1113
CW		 4232 m_n->gmch_m = bits_per_pixel * pixel_clock;
4233 m_n->gmch_n = link_clock * nlanes * 8;
e69d0bc1 4234 intel_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n);
22ed1113
CW		 4235 m_n->link_m = pixel_clock;
4236 m_n->link_n = link_clock;
e69d0bc1 4237 intel_reduce_ratio(&m_n->link_m, &m_n->link_n);
2c07245f
ZW		 4238}
4239
a7615030
CW		 4240static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
4241{
72bbe58c
KP		 4242 if (i915_panel_use_ssc >= 0)
4243 return i915_panel_use_ssc != 0;
4244 return dev_priv->lvds_use_ssc
435793df 4245 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
a7615030
CW		 4246}
4247
a0c4da24
JB		 4248static int vlv_get_refclk(struct drm_crtc *crtc)
4249{
4250 struct drm_device *dev = crtc->dev;
4251 struct drm_i915_private *dev_priv = dev->dev_private;
4252 int refclk = 27000; /* for DP & HDMI */
4253
4254 return 100000; /* only one validated so far */
4255
4256 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
4257 refclk = 96000;
4258 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
4259 if (intel_panel_use_ssc(dev_priv))
4260 refclk = 100000;
4261 else
4262 refclk = 96000;
4263 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
4264 refclk = 100000;
4265 }
4266
4267 return refclk;
4268}
4269
c65d77d8
JB		 4270static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
4271{
4272 struct drm_device *dev = crtc->dev;
4273 struct drm_i915_private *dev_priv = dev->dev_private;
4274 int refclk;
4275
a0c4da24
JB		 4276 if (IS_VALLEYVIEW(dev)) {
4277 refclk = vlv_get_refclk(crtc);
4278 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
c65d77d8
JB		 4279 intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
4280 refclk = dev_priv->lvds_ssc_freq * 1000;
4281 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4282 refclk / 1000);
4283 } else if (!IS_GEN2(dev)) {
4284 refclk = 96000;
4285 } else {
4286 refclk = 48000;
4287 }
4288
4289 return refclk;
4290}
4291
f47709a9 4292static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc *crtc)
c65d77d8 4293{
f47709a9
DV		 4294 unsigned dotclock = crtc->config.adjusted_mode.clock;
4295 struct dpll *clock = &crtc->config.dpll;
4296
c65d77d8
JB		 4297 /* SDVO TV has fixed PLL values depend on its clock range,
4298 this mirrors vbios setting. */
f47709a9 4299 if (dotclock >= 100000 && dotclock < 140500) {
c65d77d8
JB		 4300 clock->p1 = 2;
4301 clock->p2 = 10;
4302 clock->n = 3;
4303 clock->m1 = 16;
4304 clock->m2 = 8;
f47709a9 4305 } else if (dotclock >= 140500 && dotclock <= 200000) {
c65d77d8
JB		 4306 clock->p1 = 1;
4307 clock->p2 = 10;
4308 clock->n = 6;
4309 clock->m1 = 12;
4310 clock->m2 = 8;
4311 }
f47709a9
DV		 4312
4313 crtc->config.clock_set = true;
c65d77d8
JB		 4314}
4315
7429e9d4
DV		 4316static uint32_t pnv_dpll_compute_fp(struct dpll *dpll)
4317{
4318 return (1 << dpll->n) << 16 | dpll->m1 << 8 | dpll->m2;
4319}
4320
4321static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll)
4322{
4323 return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
4324}
4325
f47709a9 4326static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
a7516a05
JB		 4327 intel_clock_t *reduced_clock)
4328{
f47709a9 4329 struct drm_device *dev = crtc->base.dev;
a7516a05 4330 struct drm_i915_private *dev_priv = dev->dev_private;
f47709a9 4331 int pipe = crtc->pipe;
a7516a05
JB		 4332 u32 fp, fp2 = 0;
4333
4334 if (IS_PINEVIEW(dev)) {
7429e9d4 4335 fp = pnv_dpll_compute_fp(&crtc->config.dpll);
a7516a05 4336 if (reduced_clock)
7429e9d4 4337 fp2 = pnv_dpll_compute_fp(reduced_clock);
a7516a05 4338 } else {
7429e9d4 4339 fp = i9xx_dpll_compute_fp(&crtc->config.dpll);
a7516a05 4340 if (reduced_clock)
7429e9d4 4341 fp2 = i9xx_dpll_compute_fp(reduced_clock);
a7516a05
JB		 4342 }
4343
4344 I915_WRITE(FP0(pipe), fp);
4345
f47709a9
DV		 4346 crtc->lowfreq_avail = false;
4347 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
a7516a05
JB		 4348 reduced_clock && i915_powersave) {
4349 I915_WRITE(FP1(pipe), fp2);
f47709a9 4350 crtc->lowfreq_avail = true;
a7516a05
JB		 4351 } else {
4352 I915_WRITE(FP1(pipe), fp);
4353 }
4354}
4355
89b667f8
JB		 4356static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv)
4357{
4358 u32 reg_val;
4359
4360 /*
4361 * PLLB opamp always calibrates to max value of 0x3f, force enable it
4362 * and set it to a reasonable value instead.
4363 */
4364 reg_val = intel_dpio_read(dev_priv, DPIO_IREF(1));
4365 reg_val &= 0xffffff00;
4366 reg_val |= 0x00000030;
4367 intel_dpio_write(dev_priv, DPIO_IREF(1), reg_val);
4368
4369 reg_val = intel_dpio_read(dev_priv, DPIO_CALIBRATION);
4370 reg_val &= 0x8cffffff;
4371 reg_val = 0x8c000000;
4372 intel_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val);
4373
4374 reg_val = intel_dpio_read(dev_priv, DPIO_IREF(1));
4375 reg_val &= 0xffffff00;
4376 intel_dpio_write(dev_priv, DPIO_IREF(1), reg_val);
4377
4378 reg_val = intel_dpio_read(dev_priv, DPIO_CALIBRATION);
4379 reg_val &= 0x00ffffff;
4380 reg_val |= 0xb0000000;
4381 intel_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val);
4382}
4383
b551842d
DV		 4384static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
4385 struct intel_link_m_n *m_n)
4386{
4387 struct drm_device *dev = crtc->base.dev;
4388 struct drm_i915_private *dev_priv = dev->dev_private;
4389 int pipe = crtc->pipe;
4390
e3b95f1e
DV		 4391 I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4392 I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n);
4393 I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m);
4394 I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n);
b551842d
DV		 4395}
4396
4397static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
4398 struct intel_link_m_n *m_n)
4399{
4400 struct drm_device *dev = crtc->base.dev;
4401 struct drm_i915_private *dev_priv = dev->dev_private;
4402 int pipe = crtc->pipe;
4403 enum transcoder transcoder = crtc->config.cpu_transcoder;
4404
4405 if (INTEL_INFO(dev)->gen >= 5) {
4406 I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
4407 I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
4408 I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
4409 I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
4410 } else {
e3b95f1e
DV		 4411 I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4412 I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n);
4413 I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m);
4414 I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n);
b551842d
DV		 4415 }
4416}
4417
03afc4a2
DV		 4418static void intel_dp_set_m_n(struct intel_crtc *crtc)
4419{
4420 if (crtc->config.has_pch_encoder)
4421 intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4422 else
4423 intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4424}
4425
f47709a9 4426static void vlv_update_pll(struct intel_crtc *crtc)
a0c4da24 4427{
f47709a9 4428 struct drm_device *dev = crtc->base.dev;
a0c4da24 4429 struct drm_i915_private *dev_priv = dev->dev_private;
89b667f8
JB		 4430 struct drm_display_mode *adjusted_mode =
4431 &crtc->config.adjusted_mode;
4432 struct intel_encoder *encoder;
f47709a9 4433 int pipe = crtc->pipe;
89b667f8 4434 u32 dpll, mdiv;
a0c4da24 4435 u32 bestn, bestm1, bestm2, bestp1, bestp2;
89b667f8 4436 bool is_hdmi;
198a037f 4437 u32 coreclk, reg_val, dpll_md;
a0c4da24 4438
09153000
DV		 4439 mutex_lock(&dev_priv->dpio_lock);
4440
89b667f8 4441 is_hdmi = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
a0c4da24 4442
f47709a9
DV		 4443 bestn = crtc->config.dpll.n;
4444 bestm1 = crtc->config.dpll.m1;
4445 bestm2 = crtc->config.dpll.m2;
4446 bestp1 = crtc->config.dpll.p1;
4447 bestp2 = crtc->config.dpll.p2;
a0c4da24 4448
89b667f8
JB		 4449 /* See eDP HDMI DPIO driver vbios notes doc */
4450
4451 /* PLL B needs special handling */
4452 if (pipe)
4453 vlv_pllb_recal_opamp(dev_priv);
4454
4455 /* Set up Tx target for periodic Rcomp update */
4456 intel_dpio_write(dev_priv, DPIO_IREF_BCAST, 0x0100000f);
4457
4458 /* Disable target IRef on PLL */
4459 reg_val = intel_dpio_read(dev_priv, DPIO_IREF_CTL(pipe));
4460 reg_val &= 0x00ffffff;
4461 intel_dpio_write(dev_priv, DPIO_IREF_CTL(pipe), reg_val);
4462
4463 /* Disable fast lock */
4464 intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x610);
4465
4466 /* Set idtafcrecal before PLL is enabled */
a0c4da24
JB		 4467 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
4468 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
4469 mdiv |= ((bestn << DPIO_N_SHIFT));
a0c4da24 4470 mdiv |= (1 << DPIO_K_SHIFT);
7df5080b
JB		 4471
4472 /*
4473 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
4474 * but we don't support that).
4475 * Note: don't use the DAC post divider as it seems unstable.
4476 */
4477 mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
a0c4da24
JB		 4478 intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
4479
89b667f8
JB		 4480 mdiv |= DPIO_ENABLE_CALIBRATION;
4481 intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
a0c4da24 4482
89b667f8
JB		 4483 /* Set HBR and RBR LPF coefficients */
4484 if (adjusted_mode->clock == 162000 ||
4485 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI))
4486 intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe),
4487 0x005f0021);
4488 else
4489 intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe),
4490 0x00d0000f);
4491
4492 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
4493 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) {
4494 /* Use SSC source */
4495 if (!pipe)
4496 intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4497 0x0df40000);
4498 else
4499 intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4500 0x0df70000);
4501 } else { /* HDMI or VGA */
4502 /* Use bend source */
4503 if (!pipe)
4504 intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4505 0x0df70000);
4506 else
4507 intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4508 0x0df40000);
4509 }
a0c4da24 4510
89b667f8
JB		 4511 coreclk = intel_dpio_read(dev_priv, DPIO_CORE_CLK(pipe));
4512 coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
4513 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) ||
4514 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP))
4515 coreclk |= 0x01000000;
4516 intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), coreclk);
a0c4da24 4517
89b667f8 4518 intel_dpio_write(dev_priv, DPIO_PLL_CML(pipe), 0x87871000);
a0c4da24 4519
89b667f8
JB		 4520 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
4521 if (encoder->pre_pll_enable)
4522 encoder->pre_pll_enable(encoder);
2a8f64ca 4523
89b667f8
JB		 4524 /* Enable DPIO clock input */
4525 dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
4526 DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
4527 if (pipe)
4528 dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
2a8f64ca 4529
89b667f8 4530 dpll |= DPLL_VCO_ENABLE;
2a8f64ca 4531 I915_WRITE(DPLL(pipe), dpll);
2a8f64ca
VP		 4532 POSTING_READ(DPLL(pipe));
4533 udelay(150);
a0c4da24 4534
89b667f8
JB		 4535 if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
4536 DRM_ERROR("DPLL %d failed to lock\n", pipe);
4537
198a037f
DV		 4538 dpll_md = 0;
4539 if (crtc->config.pixel_multiplier > 1) {
4540 dpll_md = (crtc->config.pixel_multiplier - 1)
4541 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
2a8f64ca 4542 }
198a037f
DV		 4543 I915_WRITE(DPLL_MD(pipe), dpll_md);
4544 POSTING_READ(DPLL_MD(pipe));
f47709a9 4545
89b667f8
JB		 4546 if (crtc->config.has_dp_encoder)
4547 intel_dp_set_m_n(crtc);
09153000
DV		 4548
4549 mutex_unlock(&dev_priv->dpio_lock);
a0c4da24
JB		 4550}
4551
f47709a9
DV		 4552static void i9xx_update_pll(struct intel_crtc *crtc,
4553 intel_clock_t *reduced_clock,
eb1cbe48
DV		 4554 int num_connectors)
4555{
f47709a9 4556 struct drm_device *dev = crtc->base.dev;
eb1cbe48 4557 struct drm_i915_private *dev_priv = dev->dev_private;
dafd226c 4558 struct intel_encoder *encoder;
f47709a9 4559 int pipe = crtc->pipe;
eb1cbe48
DV		 4560 u32 dpll;
4561 bool is_sdvo;
f47709a9 4562 struct dpll *clock = &crtc->config.dpll;
eb1cbe48 4563
f47709a9 4564 i9xx_update_pll_dividers(crtc, reduced_clock);
2a8f64ca 4565
f47709a9
DV		 4566 is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
4567 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
eb1cbe48
DV		 4568
4569 dpll = DPLL_VGA_MODE_DIS;
4570
f47709a9 4571 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS))
eb1cbe48
DV		 4572 dpll |= DPLLB_MODE_LVDS;
4573 else
4574 dpll |= DPLLB_MODE_DAC_SERIAL;
6cc5f341 4575
198a037f
DV		 4576 if ((crtc->config.pixel_multiplier > 1) &&
4577 (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))) {
4578 dpll |= (crtc->config.pixel_multiplier - 1)
4579 << SDVO_MULTIPLIER_SHIFT_HIRES;
eb1cbe48 4580 }
198a037f
DV		 4581
4582 if (is_sdvo)
4583 dpll |= DPLL_DVO_HIGH_SPEED;
4584
f47709a9 4585 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
eb1cbe48
DV		 4586 dpll |= DPLL_DVO_HIGH_SPEED;
4587
4588 /* compute bitmask from p1 value */
4589 if (IS_PINEVIEW(dev))
4590 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
4591 else {
4592 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4593 if (IS_G4X(dev) && reduced_clock)
4594 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
4595 }
4596 switch (clock->p2) {
4597 case 5:
4598 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
4599 break;
4600 case 7:
4601 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
4602 break;
4603 case 10:
4604 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
4605 break;
4606 case 14:
4607 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
4608 break;
4609 }
4610 if (INTEL_INFO(dev)->gen >= 4)
4611 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
4612
f47709a9 4613 if (is_sdvo && intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_TVOUT))
eb1cbe48 4614 dpll |= PLL_REF_INPUT_TVCLKINBC;
f47709a9 4615 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_TVOUT))
eb1cbe48
DV		 4616 /* XXX: just matching BIOS for now */
4617 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4618 dpll |= 3;
f47709a9 4619 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
eb1cbe48
DV		 4620 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4621 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4622 else
4623 dpll |= PLL_REF_INPUT_DREFCLK;
4624
4625 dpll |= DPLL_VCO_ENABLE;
4626 I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
4627 POSTING_READ(DPLL(pipe));
4628 udelay(150);
4629
f47709a9 4630 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
dafd226c
DV		 4631 if (encoder->pre_pll_enable)
4632 encoder->pre_pll_enable(encoder);
eb1cbe48 4633
f47709a9
DV		 4634 if (crtc->config.has_dp_encoder)
4635 intel_dp_set_m_n(crtc);
eb1cbe48
DV		 4636
4637 I915_WRITE(DPLL(pipe), dpll);
4638
4639 /* Wait for the clocks to stabilize. */
4640 POSTING_READ(DPLL(pipe));
4641 udelay(150);
4642
4643 if (INTEL_INFO(dev)->gen >= 4) {
198a037f
DV		 4644 u32 dpll_md = 0;
4645 if (crtc->config.pixel_multiplier > 1) {
4646 dpll_md = (crtc->config.pixel_multiplier - 1)
4647 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
eb1cbe48 4648 }
198a037f 4649 I915_WRITE(DPLL_MD(pipe), dpll_md);
eb1cbe48
DV		 4650 } else {
4651 /* The pixel multiplier can only be updated once the
4652 * DPLL is enabled and the clocks are stable.
4653 *
4654 * So write it again.
4655 */
4656 I915_WRITE(DPLL(pipe), dpll);
4657 }
4658}
4659
f47709a9 4660static void i8xx_update_pll(struct intel_crtc *crtc,
eb1cbe48 4661 struct drm_display_mode *adjusted_mode,
f47709a9 4662 intel_clock_t *reduced_clock,
eb1cbe48
DV		 4663 int num_connectors)
4664{
f47709a9 4665 struct drm_device *dev = crtc->base.dev;
eb1cbe48 4666 struct drm_i915_private *dev_priv = dev->dev_private;
dafd226c 4667 struct intel_encoder *encoder;
f47709a9 4668 int pipe = crtc->pipe;
eb1cbe48 4669 u32 dpll;
f47709a9 4670 struct dpll *clock = &crtc->config.dpll;
eb1cbe48 4671
f47709a9 4672 i9xx_update_pll_dividers(crtc, reduced_clock);
2a8f64ca 4673
eb1cbe48
DV		 4674 dpll = DPLL_VGA_MODE_DIS;
4675
f47709a9 4676 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
eb1cbe48
DV		 4677 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4678 } else {
4679 if (clock->p1 == 2)
4680 dpll |= PLL_P1_DIVIDE_BY_TWO;
4681 else
4682 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4683 if (clock->p2 == 4)
4684 dpll |= PLL_P2_DIVIDE_BY_4;
4685 }
4686
f47709a9 4687 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
eb1cbe48
DV		 4688 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4689 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4690 else
4691 dpll |= PLL_REF_INPUT_DREFCLK;
4692
4693 dpll |= DPLL_VCO_ENABLE;
4694 I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
4695 POSTING_READ(DPLL(pipe));
4696 udelay(150);
4697
f47709a9 4698 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
dafd226c
DV		 4699 if (encoder->pre_pll_enable)
4700 encoder->pre_pll_enable(encoder);
eb1cbe48 4701
5b5896e4
DV		 4702 I915_WRITE(DPLL(pipe), dpll);
4703
4704 /* Wait for the clocks to stabilize. */
4705 POSTING_READ(DPLL(pipe));
4706 udelay(150);
4707
eb1cbe48
DV		 4708 /* The pixel multiplier can only be updated once the
4709 * DPLL is enabled and the clocks are stable.
4710 *
4711 * So write it again.
4712 */
4713 I915_WRITE(DPLL(pipe), dpll);
4714}
4715
b0e77b9c
PZ		 4716static void intel_set_pipe_timings(struct intel_crtc *intel_crtc,
4717 struct drm_display_mode *mode,
4718 struct drm_display_mode *adjusted_mode)
4719{
4720 struct drm_device *dev = intel_crtc->base.dev;
4721 struct drm_i915_private *dev_priv = dev->dev_private;
4722 enum pipe pipe = intel_crtc->pipe;
3b117c8f 4723 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
4d8a62ea
DV		 4724 uint32_t vsyncshift, crtc_vtotal, crtc_vblank_end;
4725
4726 /* We need to be careful not to changed the adjusted mode, for otherwise
4727 * the hw state checker will get angry at the mismatch. */
4728 crtc_vtotal = adjusted_mode->crtc_vtotal;
4729 crtc_vblank_end = adjusted_mode->crtc_vblank_end;
b0e77b9c
PZ		 4730
4731 if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
4732 /* the chip adds 2 halflines automatically */
4d8a62ea
DV		 4733 crtc_vtotal -= 1;
4734 crtc_vblank_end -= 1;
b0e77b9c
PZ		 4735 vsyncshift = adjusted_mode->crtc_hsync_start
4736 - adjusted_mode->crtc_htotal / 2;
4737 } else {
4738 vsyncshift = 0;
4739 }
4740
4741 if (INTEL_INFO(dev)->gen > 3)
fe2b8f9d 4742 I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
b0e77b9c 4743
fe2b8f9d 4744 I915_WRITE(HTOTAL(cpu_transcoder),
b0e77b9c
PZ		 4745 (adjusted_mode->crtc_hdisplay - 1) |
4746 ((adjusted_mode->crtc_htotal - 1) << 16));
fe2b8f9d 4747 I915_WRITE(HBLANK(cpu_transcoder),
b0e77b9c
PZ		 4748 (adjusted_mode->crtc_hblank_start - 1) |
4749 ((adjusted_mode->crtc_hblank_end - 1) << 16));
fe2b8f9d 4750 I915_WRITE(HSYNC(cpu_transcoder),
b0e77b9c
PZ		 4751 (adjusted_mode->crtc_hsync_start - 1) |
4752 ((adjusted_mode->crtc_hsync_end - 1) << 16));
4753
fe2b8f9d 4754 I915_WRITE(VTOTAL(cpu_transcoder),
b0e77b9c 4755 (adjusted_mode->crtc_vdisplay - 1) |
4d8a62ea 4756 ((crtc_vtotal - 1) << 16));
fe2b8f9d 4757 I915_WRITE(VBLANK(cpu_transcoder),
b0e77b9c 4758 (adjusted_mode->crtc_vblank_start - 1) |
4d8a62ea 4759 ((crtc_vblank_end - 1) << 16));
fe2b8f9d 4760 I915_WRITE(VSYNC(cpu_transcoder),
b0e77b9c
PZ		 4761 (adjusted_mode->crtc_vsync_start - 1) |
4762 ((adjusted_mode->crtc_vsync_end - 1) << 16));
4763
b5e508d4
PZ		 4764 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
4765 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
4766 * documented on the DDI_FUNC_CTL register description, EDP Input Select
4767 * bits. */
4768 if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP &&
4769 (pipe == PIPE_B || pipe == PIPE_C))
4770 I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
4771
b0e77b9c
PZ		 4772 /* pipesrc controls the size that is scaled from, which should
4773 * always be the user's requested size.
4774 */
4775 I915_WRITE(PIPESRC(pipe),
4776 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
4777}
4778
1bd1bd80
DV		 4779static void intel_get_pipe_timings(struct intel_crtc *crtc,
4780 struct intel_crtc_config *pipe_config)
4781{
4782 struct drm_device *dev = crtc->base.dev;
4783 struct drm_i915_private *dev_priv = dev->dev_private;
4784 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
4785 uint32_t tmp;
4786
4787 tmp = I915_READ(HTOTAL(cpu_transcoder));
4788 pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1;
4789 pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1;
4790 tmp = I915_READ(HBLANK(cpu_transcoder));
4791 pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1;
4792 pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1;
4793 tmp = I915_READ(HSYNC(cpu_transcoder));
4794 pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1;
4795 pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1;
4796
4797 tmp = I915_READ(VTOTAL(cpu_transcoder));
4798 pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1;
4799 pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1;
4800 tmp = I915_READ(VBLANK(cpu_transcoder));
4801 pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1;
4802 pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1;
4803 tmp = I915_READ(VSYNC(cpu_transcoder));
4804 pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1;
4805 pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1;
4806
4807 if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) {
4808 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE;
4809 pipe_config->adjusted_mode.crtc_vtotal += 1;
4810 pipe_config->adjusted_mode.crtc_vblank_end += 1;
4811 }
4812
4813 tmp = I915_READ(PIPESRC(crtc->pipe));
4814 pipe_config->requested_mode.vdisplay = (tmp & 0xffff) + 1;
4815 pipe_config->requested_mode.hdisplay = ((tmp >> 16) & 0xffff) + 1;
4816}
4817
84b046f3
DV		 4818static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
4819{
4820 struct drm_device *dev = intel_crtc->base.dev;
4821 struct drm_i915_private *dev_priv = dev->dev_private;
4822 uint32_t pipeconf;
4823
4824 pipeconf = I915_READ(PIPECONF(intel_crtc->pipe));
4825
4826 if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) {
4827 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4828 * core speed.
4829 *
4830 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4831 * pipe == 0 check?
4832 */
4833 if (intel_crtc->config.requested_mode.clock >
4834 dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
4835 pipeconf |= PIPECONF_DOUBLE_WIDE;
4836 else
4837 pipeconf &= ~PIPECONF_DOUBLE_WIDE;
4838 }
4839
ff9ce46e
DV		 4840 /* only g4x and later have fancy bpc/dither controls */
4841 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
4842 pipeconf &= ~(PIPECONF_BPC_MASK |
4843 PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
4844
4845 /* Bspec claims that we can't use dithering for 30bpp pipes. */
4846 if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30)
4847 pipeconf |= PIPECONF_DITHER_EN |
84b046f3 4848 PIPECONF_DITHER_TYPE_SP;
84b046f3 4849
ff9ce46e
DV		 4850 switch (intel_crtc->config.pipe_bpp) {
4851 case 18:
4852 pipeconf |= PIPECONF_6BPC;
4853 break;
4854 case 24:
4855 pipeconf |= PIPECONF_8BPC;
4856 break;
4857 case 30:
4858 pipeconf |= PIPECONF_10BPC;
4859 break;
4860 default:
4861 /* Case prevented by intel_choose_pipe_bpp_dither. */
4862 BUG();
84b046f3
DV		 4863 }
4864 }
4865
4866 if (HAS_PIPE_CXSR(dev)) {
4867 if (intel_crtc->lowfreq_avail) {
4868 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4869 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
4870 } else {
4871 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
4872 pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
4873 }
4874 }
4875
4876 pipeconf &= ~PIPECONF_INTERLACE_MASK;
4877 if (!IS_GEN2(dev) &&
4878 intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
4879 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
4880 else
4881 pipeconf |= PIPECONF_PROGRESSIVE;
4882
9c8e09b7
VS		 4883 if (IS_VALLEYVIEW(dev)) {
4884 if (intel_crtc->config.limited_color_range)
4885 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
4886 else
4887 pipeconf &= ~PIPECONF_COLOR_RANGE_SELECT;
4888 }
4889
84b046f3
DV		 4890 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
4891 POSTING_READ(PIPECONF(intel_crtc->pipe));
4892}
4893
f564048e 4894static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
f564048e 4895 int x, int y,
94352cf9 4896 struct drm_framebuffer *fb)
79e53945
JB		 4897{
4898 struct drm_device *dev = crtc->dev;
4899 struct drm_i915_private *dev_priv = dev->dev_private;
4900 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
b8cecdf5
DV		 4901 struct drm_display_mode *adjusted_mode =
4902 &intel_crtc->config.adjusted_mode;
4903 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
79e53945 4904 int pipe = intel_crtc->pipe;
80824003 4905 int plane = intel_crtc->plane;
c751ce4f 4906 int refclk, num_connectors = 0;
652c393a 4907 intel_clock_t clock, reduced_clock;
84b046f3 4908 u32 dspcntr;
eb1cbe48 4909 bool ok, has_reduced_clock = false, is_sdvo = false;
8b47047b 4910 bool is_lvds = false, is_tv = false;
5eddb70b 4911 struct intel_encoder *encoder;
d4906093 4912 const intel_limit_t *limit;
5c3b82e2 4913 int ret;
79e53945 4914
6c2b7c12 4915 for_each_encoder_on_crtc(dev, crtc, encoder) {
5eddb70b 4916 switch (encoder->type) {
79e53945
JB		 4917 case INTEL_OUTPUT_LVDS:
4918 is_lvds = true;
4919 break;
4920 case INTEL_OUTPUT_SDVO:
7d57382e 4921 case INTEL_OUTPUT_HDMI:
79e53945 4922 is_sdvo = true;
5eddb70b 4923 if (encoder->needs_tv_clock)
e2f0ba97 4924 is_tv = true;
79e53945 4925 break;
79e53945
JB		 4926 case INTEL_OUTPUT_TVOUT:
4927 is_tv = true;
4928 break;
79e53945 4929 }
43565a06 4930
c751ce4f 4931 num_connectors++;
79e53945
JB		 4932 }
4933
c65d77d8 4934 refclk = i9xx_get_refclk(crtc, num_connectors);
79e53945 4935
d4906093
ML		 4936 /*
4937 * Returns a set of divisors for the desired target clock with the given
4938 * refclk, or FALSE. The returned values represent the clock equation:
4939 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4940 */
1b894b59 4941 limit = intel_limit(crtc, refclk);
cec2f356
SP		 4942 ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL,
4943 &clock);
79e53945
JB		 4944 if (!ok) {
4945 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5c3b82e2 4946 return -EINVAL;
79e53945
JB		 4947 }
4948
cda4b7d3 4949 /* Ensure that the cursor is valid for the new mode before changing... */
6b383a7f 4950 intel_crtc_update_cursor(crtc, true);
cda4b7d3 4951
ddc9003c 4952 if (is_lvds && dev_priv->lvds_downclock_avail) {
cec2f356
SP		 4953 /*
4954 * Ensure we match the reduced clock's P to the target clock.
4955 * If the clocks don't match, we can't switch the display clock
4956 * by using the FP0/FP1. In such case we will disable the LVDS
4957 * downclock feature.
4958 */
ddc9003c 4959 has_reduced_clock = limit->find_pll(limit, crtc,
5eddb70b
CW		 4960 dev_priv->lvds_downclock,
4961 refclk,
cec2f356 4962 &clock,
5eddb70b 4963 &reduced_clock);
7026d4ac 4964 }
f47709a9
DV		 4965 /* Compat-code for transition, will disappear. */
4966 if (!intel_crtc->config.clock_set) {
4967 intel_crtc->config.dpll.n = clock.n;
4968 intel_crtc->config.dpll.m1 = clock.m1;
4969 intel_crtc->config.dpll.m2 = clock.m2;
4970 intel_crtc->config.dpll.p1 = clock.p1;
4971 intel_crtc->config.dpll.p2 = clock.p2;
4972 }
7026d4ac 4973
c65d77d8 4974 if (is_sdvo && is_tv)
f47709a9 4975 i9xx_adjust_sdvo_tv_clock(intel_crtc);
7026d4ac 4976
eb1cbe48 4977 if (IS_GEN2(dev))
f47709a9 4978 i8xx_update_pll(intel_crtc, adjusted_mode,
2a8f64ca
VP		 4979 has_reduced_clock ? &reduced_clock : NULL,
4980 num_connectors);
a0c4da24 4981 else if (IS_VALLEYVIEW(dev))
f47709a9 4982 vlv_update_pll(intel_crtc);
79e53945 4983 else
f47709a9 4984 i9xx_update_pll(intel_crtc,
eb1cbe48 4985 has_reduced_clock ? &reduced_clock : NULL,
89b667f8 4986 num_connectors);
79e53945 4987
79e53945
JB		 4988 /* Set up the display plane register */
4989 dspcntr = DISPPLANE_GAMMA_ENABLE;
4990
da6ecc5d
JB		 4991 if (!IS_VALLEYVIEW(dev)) {
4992 if (pipe == 0)
4993 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
4994 else
4995 dspcntr |= DISPPLANE_SEL_PIPE_B;
4996 }
79e53945 4997
2582a850 4998 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe_name(pipe));
79e53945
JB		 4999 drm_mode_debug_printmodeline(mode);
5000
b0e77b9c 5001 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
5eddb70b
CW		 5002
5003 /* pipesrc and dspsize control the size that is scaled from,
5004 * which should always be the user's requested size.
79e53945 5005 */
929c77fb
EA		 5006 I915_WRITE(DSPSIZE(plane),
5007 ((mode->vdisplay - 1) << 16) |
5008 (mode->hdisplay - 1));
5009 I915_WRITE(DSPPOS(plane), 0);
2c07245f 5010
84b046f3
DV		 5011 i9xx_set_pipeconf(intel_crtc);
5012
f564048e
EA		 5013 I915_WRITE(DSPCNTR(plane), dspcntr);
5014 POSTING_READ(DSPCNTR(plane));
5015
94352cf9 5016 ret = intel_pipe_set_base(crtc, x, y, fb);
f564048e
EA		 5017
5018 intel_update_watermarks(dev);
5019
f564048e
EA		 5020 return ret;
5021}
5022
0e8ffe1b
DV		 5023static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
5024 struct intel_crtc_config *pipe_config)
5025{
5026 struct drm_device *dev = crtc->base.dev;
5027 struct drm_i915_private *dev_priv = dev->dev_private;
5028 uint32_t tmp;
5029
5030 tmp = I915_READ(PIPECONF(crtc->pipe));
5031 if (!(tmp & PIPECONF_ENABLE))
5032 return false;
5033
1bd1bd80
DV		 5034 intel_get_pipe_timings(crtc, pipe_config);
5035
0e8ffe1b
DV		 5036 return true;
5037}
5038
dde86e2d 5039static void ironlake_init_pch_refclk(struct drm_device *dev)
13d83a67
JB		 5040{
5041 struct drm_i915_private *dev_priv = dev->dev_private;
5042 struct drm_mode_config *mode_config = &dev->mode_config;
13d83a67 5043 struct intel_encoder *encoder;
74cfd7ac 5044 u32 val, final;
13d83a67 5045 bool has_lvds = false;
199e5d79
KP		 5046 bool has_cpu_edp = false;
5047 bool has_pch_edp = false;
5048 bool has_panel = false;
99eb6a01
KP		 5049 bool has_ck505 = false;
5050 bool can_ssc = false;
13d83a67
JB		 5051
5052 /* We need to take the global config into account */
199e5d79
KP		 5053 list_for_each_entry(encoder, &mode_config->encoder_list,
5054 base.head) {
5055 switch (encoder->type) {
5056 case INTEL_OUTPUT_LVDS:
5057 has_panel = true;
5058 has_lvds = true;
5059 break;
5060 case INTEL_OUTPUT_EDP:
5061 has_panel = true;
5062 if (intel_encoder_is_pch_edp(&encoder->base))
5063 has_pch_edp = true;
5064 else
5065 has_cpu_edp = true;
5066 break;
13d83a67
JB		 5067 }
5068 }
5069
99eb6a01
KP		 5070 if (HAS_PCH_IBX(dev)) {
5071 has_ck505 = dev_priv->display_clock_mode;
5072 can_ssc = has_ck505;
5073 } else {
5074 has_ck505 = false;
5075 can_ssc = true;
5076 }
5077
5078 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n",
5079 has_panel, has_lvds, has_pch_edp, has_cpu_edp,
5080 has_ck505);
13d83a67
JB		 5081
5082 /* Ironlake: try to setup display ref clock before DPLL
5083 * enabling. This is only under driver's control after
5084 * PCH B stepping, previous chipset stepping should be
5085 * ignoring this setting.
5086 */
74cfd7ac
CW		 5087 val = I915_READ(PCH_DREF_CONTROL);
5088
5089 /* As we must carefully and slowly disable/enable each source in turn,
5090 * compute the final state we want first and check if we need to
5091 * make any changes at all.
5092 */
5093 final = val;
5094 final &= ~DREF_NONSPREAD_SOURCE_MASK;
5095 if (has_ck505)
5096 final |= DREF_NONSPREAD_CK505_ENABLE;
5097 else
5098 final |= DREF_NONSPREAD_SOURCE_ENABLE;
5099
5100 final &= ~DREF_SSC_SOURCE_MASK;
5101 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5102 final &= ~DREF_SSC1_ENABLE;
5103
5104 if (has_panel) {
5105 final |= DREF_SSC_SOURCE_ENABLE;
5106
5107 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5108 final |= DREF_SSC1_ENABLE;
5109
5110 if (has_cpu_edp) {
5111 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5112 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5113 else
5114 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5115 } else
5116 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5117 } else {
5118 final |= DREF_SSC_SOURCE_DISABLE;
5119 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5120 }
5121
5122 if (final == val)
5123 return;
5124
13d83a67 5125 /* Always enable nonspread source */
74cfd7ac 5126 val &= ~DREF_NONSPREAD_SOURCE_MASK;
13d83a67 5127
99eb6a01 5128 if (has_ck505)
74cfd7ac 5129 val |= DREF_NONSPREAD_CK505_ENABLE;
99eb6a01 5130 else
74cfd7ac 5131 val |= DREF_NONSPREAD_SOURCE_ENABLE;
13d83a67 5132
199e5d79 5133 if (has_panel) {
74cfd7ac
CW		 5134 val &= ~DREF_SSC_SOURCE_MASK;
5135 val |= DREF_SSC_SOURCE_ENABLE;
13d83a67 5136
199e5d79 5137 /* SSC must be turned on before enabling the CPU output */
99eb6a01 5138 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
199e5d79 5139 DRM_DEBUG_KMS("Using SSC on panel\n");
74cfd7ac 5140 val |= DREF_SSC1_ENABLE;
e77166b5 5141 } else
74cfd7ac 5142 val &= ~DREF_SSC1_ENABLE;
199e5d79
KP		 5143
5144 /* Get SSC going before enabling the outputs */
74cfd7ac 5145 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5146 POSTING_READ(PCH_DREF_CONTROL);
5147 udelay(200);
5148
74cfd7ac 5149 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
13d83a67
JB		 5150
5151 /* Enable CPU source on CPU attached eDP */
199e5d79 5152 if (has_cpu_edp) {
99eb6a01 5153 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
199e5d79 5154 DRM_DEBUG_KMS("Using SSC on eDP\n");
74cfd7ac 5155 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
199e5d79 5156 }
13d83a67 5157 else
74cfd7ac 5158 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
199e5d79 5159 } else
74cfd7ac 5160 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
199e5d79 5161
74cfd7ac 5162 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5163 POSTING_READ(PCH_DREF_CONTROL);
5164 udelay(200);
5165 } else {
5166 DRM_DEBUG_KMS("Disabling SSC entirely\n");
5167
74cfd7ac 5168 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
199e5d79
KP		 5169
5170 /* Turn off CPU output */
74cfd7ac 5171 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
199e5d79 5172
74cfd7ac 5173 I915_WRITE(PCH_DREF_CONTROL, val);
199e5d79
KP		 5174 POSTING_READ(PCH_DREF_CONTROL);
5175 udelay(200);
5176
5177 /* Turn off the SSC source */
74cfd7ac
CW		 5178 val &= ~DREF_SSC_SOURCE_MASK;
5179 val |= DREF_SSC_SOURCE_DISABLE;
199e5d79
KP		 5180
5181 /* Turn off SSC1 */
74cfd7ac 5182 val &= ~DREF_SSC1_ENABLE;
199e5d79 5183
74cfd7ac 5184 I915_WRITE(PCH_DREF_CONTROL, val);
13d83a67
JB		 5185 POSTING_READ(PCH_DREF_CONTROL);
5186 udelay(200);
5187 }
74cfd7ac
CW		 5188
5189 BUG_ON(val != final);
13d83a67
JB		 5190}
5191
dde86e2d
PZ		 5192/* Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O. */
5193static void lpt_init_pch_refclk(struct drm_device *dev)
5194{
5195 struct drm_i915_private *dev_priv = dev->dev_private;
5196 struct drm_mode_config *mode_config = &dev->mode_config;
5197 struct intel_encoder *encoder;
5198 bool has_vga = false;
5199 bool is_sdv = false;
5200 u32 tmp;
5201
5202 list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
5203 switch (encoder->type) {
5204 case INTEL_OUTPUT_ANALOG:
5205 has_vga = true;
5206 break;
5207 }
5208 }
5209
5210 if (!has_vga)
5211 return;
5212
c00db246
DV		 5213 mutex_lock(&dev_priv->dpio_lock);
5214
dde86e2d
PZ		 5215 /* XXX: Rip out SDV support once Haswell ships for real. */
5216 if (IS_HASWELL(dev) && (dev->pci_device & 0xFF00) == 0x0C00)
5217 is_sdv = true;
5218
5219 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5220 tmp &= ~SBI_SSCCTL_DISABLE;
5221 tmp |= SBI_SSCCTL_PATHALT;
5222 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5223
5224 udelay(24);
5225
5226 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5227 tmp &= ~SBI_SSCCTL_PATHALT;
5228 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5229
5230 if (!is_sdv) {
5231 tmp = I915_READ(SOUTH_CHICKEN2);
5232 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
5233 I915_WRITE(SOUTH_CHICKEN2, tmp);
5234
5235 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
5236 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
5237 DRM_ERROR("FDI mPHY reset assert timeout\n");
5238
5239 tmp = I915_READ(SOUTH_CHICKEN2);
5240 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
5241 I915_WRITE(SOUTH_CHICKEN2, tmp);
5242
5243 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
5244 FDI_MPHY_IOSFSB_RESET_STATUS) == 0,
5245 100))
5246 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
5247 }
5248
5249 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
5250 tmp &= ~(0xFF << 24);
5251 tmp |= (0x12 << 24);
5252 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
5253
dde86e2d
PZ		 5254 if (is_sdv) {
5255 tmp = intel_sbi_read(dev_priv, 0x800C, SBI_MPHY);
5256 tmp |= 0x7FFF;
5257 intel_sbi_write(dev_priv, 0x800C, tmp, SBI_MPHY);
5258 }
5259
5260 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
5261 tmp |= (1 << 11);
5262 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
5263
5264 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
5265 tmp |= (1 << 11);
5266 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
5267
5268 if (is_sdv) {
5269 tmp = intel_sbi_read(dev_priv, 0x2038, SBI_MPHY);
5270 tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16);
5271 intel_sbi_write(dev_priv, 0x2038, tmp, SBI_MPHY);
5272
5273 tmp = intel_sbi_read(dev_priv, 0x2138, SBI_MPHY);
5274 tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16);
5275 intel_sbi_write(dev_priv, 0x2138, tmp, SBI_MPHY);
5276
5277 tmp = intel_sbi_read(dev_priv, 0x203C, SBI_MPHY);
5278 tmp |= (0x3F << 8);
5279 intel_sbi_write(dev_priv, 0x203C, tmp, SBI_MPHY);
5280
5281 tmp = intel_sbi_read(dev_priv, 0x213C, SBI_MPHY);
5282 tmp |= (0x3F << 8);
5283 intel_sbi_write(dev_priv, 0x213C, tmp, SBI_MPHY);
5284 }
5285
5286 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
5287 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5288 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
5289
5290 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
5291 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5292 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
5293
5294 if (!is_sdv) {
5295 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
5296 tmp &= ~(7 << 13);
5297 tmp |= (5 << 13);
5298 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
5299
5300 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
5301 tmp &= ~(7 << 13);
5302 tmp |= (5 << 13);
5303 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
5304 }
5305
5306 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
5307 tmp &= ~0xFF;
5308 tmp |= 0x1C;
5309 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
5310
5311 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
5312 tmp &= ~0xFF;
5313 tmp |= 0x1C;
5314 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
5315
5316 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
5317 tmp &= ~(0xFF << 16);
5318 tmp |= (0x1C << 16);
5319 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
5320
5321 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
5322 tmp &= ~(0xFF << 16);
5323 tmp |= (0x1C << 16);
5324 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
5325
5326 if (!is_sdv) {
5327 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
5328 tmp |= (1 << 27);
5329 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
5330
5331 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
5332 tmp |= (1 << 27);
5333 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
5334
5335 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
5336 tmp &= ~(0xF << 28);
5337 tmp |= (4 << 28);
5338 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
5339
5340 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
5341 tmp &= ~(0xF << 28);
5342 tmp |= (4 << 28);
5343 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
5344 }
5345
5346 /* ULT uses SBI_GEN0, but ULT doesn't have VGA, so we don't care. */
5347 tmp = intel_sbi_read(dev_priv, SBI_DBUFF0, SBI_ICLK);
5348 tmp |= SBI_DBUFF0_ENABLE;
5349 intel_sbi_write(dev_priv, SBI_DBUFF0, tmp, SBI_ICLK);
c00db246
DV		 5350
5351 mutex_unlock(&dev_priv->dpio_lock);
dde86e2d
PZ		 5352}
5353
5354/*
5355 * Initialize reference clocks when the driver loads
5356 */
5357void intel_init_pch_refclk(struct drm_device *dev)
5358{
5359 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
5360 ironlake_init_pch_refclk(dev);
5361 else if (HAS_PCH_LPT(dev))
5362 lpt_init_pch_refclk(dev);
5363}
5364
d9d444cb
JB		 5365static int ironlake_get_refclk(struct drm_crtc *crtc)
5366{
5367 struct drm_device *dev = crtc->dev;
5368 struct drm_i915_private *dev_priv = dev->dev_private;
5369 struct intel_encoder *encoder;
d9d444cb
JB		 5370 struct intel_encoder *edp_encoder = NULL;
5371 int num_connectors = 0;
5372 bool is_lvds = false;
5373
6c2b7c12 5374 for_each_encoder_on_crtc(dev, crtc, encoder) {
d9d444cb
JB		 5375 switch (encoder->type) {
5376 case INTEL_OUTPUT_LVDS:
5377 is_lvds = true;
5378 break;
5379 case INTEL_OUTPUT_EDP:
5380 edp_encoder = encoder;
5381 break;
5382 }
5383 num_connectors++;
5384 }
5385
5386 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
5387 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
5388 dev_priv->lvds_ssc_freq);
5389 return dev_priv->lvds_ssc_freq * 1000;
5390 }
5391
5392 return 120000;
5393}
5394
6ff93609 5395static void ironlake_set_pipeconf(struct drm_crtc *crtc)
79e53945 5396{
c8203565 5397 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
79e53945
JB		 5398 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5399 int pipe = intel_crtc->pipe;
c8203565
PZ		 5400 uint32_t val;
5401
5402 val = I915_READ(PIPECONF(pipe));
5403
dfd07d72 5404 val &= ~PIPECONF_BPC_MASK;
965e0c48 5405 switch (intel_crtc->config.pipe_bpp) {
c8203565 5406 case 18:
dfd07d72 5407 val |= PIPECONF_6BPC;
c8203565
PZ		 5408 break;
5409 case 24:
dfd07d72 5410 val |= PIPECONF_8BPC;
c8203565
PZ		 5411 break;
5412 case 30:
dfd07d72 5413 val |= PIPECONF_10BPC;
c8203565
PZ		 5414 break;
5415 case 36:
dfd07d72 5416 val |= PIPECONF_12BPC;
c8203565
PZ		 5417 break;
5418 default:
cc769b62
PZ		 5419 /* Case prevented by intel_choose_pipe_bpp_dither. */
5420 BUG();
c8203565
PZ		 5421 }
5422
5423 val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
d8b32247 5424 if (intel_crtc->config.dither)
c8203565
PZ		 5425 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5426
5427 val &= ~PIPECONF_INTERLACE_MASK;
6ff93609 5428 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
c8203565
PZ		 5429 val |= PIPECONF_INTERLACED_ILK;
5430 else
5431 val |= PIPECONF_PROGRESSIVE;
5432
50f3b016 5433 if (intel_crtc->config.limited_color_range)
3685a8f3
VS		 5434 val |= PIPECONF_COLOR_RANGE_SELECT;
5435 else
5436 val &= ~PIPECONF_COLOR_RANGE_SELECT;
5437
c8203565
PZ		 5438 I915_WRITE(PIPECONF(pipe), val);
5439 POSTING_READ(PIPECONF(pipe));
5440}
5441
86d3efce
VS		 5442/*
5443 * Set up the pipe CSC unit.
5444 *
5445 * Currently only full range RGB to limited range RGB conversion
5446 * is supported, but eventually this should handle various
5447 * RGB<->YCbCr scenarios as well.
5448 */
50f3b016 5449static void intel_set_pipe_csc(struct drm_crtc *crtc)
86d3efce
VS		 5450{
5451 struct drm_device *dev = crtc->dev;
5452 struct drm_i915_private *dev_priv = dev->dev_private;
5453 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5454 int pipe = intel_crtc->pipe;
5455 uint16_t coeff = 0x7800; /* 1.0 */
5456
5457 /*
5458 * TODO: Check what kind of values actually come out of the pipe
5459 * with these coeff/postoff values and adjust to get the best
5460 * accuracy. Perhaps we even need to take the bpc value into
5461 * consideration.
5462 */
5463
50f3b016 5464 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5465 coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5466
5467 /*
5468 * GY/GU and RY/RU should be the other way around according
5469 * to BSpec, but reality doesn't agree. Just set them up in
5470 * a way that results in the correct picture.
5471 */
5472 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
5473 I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
5474
5475 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
5476 I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
5477
5478 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
5479 I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
5480
5481 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
5482 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
5483 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
5484
5485 if (INTEL_INFO(dev)->gen > 6) {
5486 uint16_t postoff = 0;
5487
50f3b016 5488 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5489 postoff = (16 * (1 << 13) / 255) & 0x1fff;
5490
5491 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
5492 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
5493 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
5494
5495 I915_WRITE(PIPE_CSC_MODE(pipe), 0);
5496 } else {
5497 uint32_t mode = CSC_MODE_YUV_TO_RGB;
5498
50f3b016 5499 if (intel_crtc->config.limited_color_range)
86d3efce
VS		 5500 mode |= CSC_BLACK_SCREEN_OFFSET;
5501
5502 I915_WRITE(PIPE_CSC_MODE(pipe), mode);
5503 }
5504}
5505
6ff93609 5506static void haswell_set_pipeconf(struct drm_crtc *crtc)
ee2b0b38
PZ		 5507{
5508 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5509 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 5510 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
ee2b0b38
PZ		 5511 uint32_t val;
5512
702e7a56 5513 val = I915_READ(PIPECONF(cpu_transcoder));
ee2b0b38
PZ		 5514
5515 val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
d8b32247 5516 if (intel_crtc->config.dither)
ee2b0b38
PZ		 5517 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5518
5519 val &= ~PIPECONF_INTERLACE_MASK_HSW;
6ff93609 5520 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
ee2b0b38
PZ		 5521 val |= PIPECONF_INTERLACED_ILK;
5522 else
5523 val |= PIPECONF_PROGRESSIVE;
5524
702e7a56
PZ		 5525 I915_WRITE(PIPECONF(cpu_transcoder), val);
5526 POSTING_READ(PIPECONF(cpu_transcoder));
ee2b0b38
PZ		 5527}
5528
6591c6e4
PZ		 5529static bool ironlake_compute_clocks(struct drm_crtc *crtc,
5530 struct drm_display_mode *adjusted_mode,
5531 intel_clock_t *clock,
5532 bool *has_reduced_clock,
5533 intel_clock_t *reduced_clock)
5534{
5535 struct drm_device *dev = crtc->dev;
5536 struct drm_i915_private *dev_priv = dev->dev_private;
5537 struct intel_encoder *intel_encoder;
5538 int refclk;
d4906093 5539 const intel_limit_t *limit;
6591c6e4 5540 bool ret, is_sdvo = false, is_tv = false, is_lvds = false;
79e53945 5541
6591c6e4
PZ		 5542 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5543 switch (intel_encoder->type) {
79e53945
JB		 5544 case INTEL_OUTPUT_LVDS:
5545 is_lvds = true;
5546 break;
5547 case INTEL_OUTPUT_SDVO:
7d57382e 5548 case INTEL_OUTPUT_HDMI:
79e53945 5549 is_sdvo = true;
6591c6e4 5550 if (intel_encoder->needs_tv_clock)
e2f0ba97 5551 is_tv = true;
79e53945 5552 break;
79e53945
JB		 5553 case INTEL_OUTPUT_TVOUT:
5554 is_tv = true;
5555 break;
79e53945
JB		 5556 }
5557 }
5558
d9d444cb 5559 refclk = ironlake_get_refclk(crtc);
79e53945 5560
d4906093
ML		 5561 /*
5562 * Returns a set of divisors for the desired target clock with the given
5563 * refclk, or FALSE. The returned values represent the clock equation:
5564 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
5565 */
1b894b59 5566 limit = intel_limit(crtc, refclk);
6591c6e4
PZ		 5567 ret = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL,
5568 clock);
5569 if (!ret)
5570 return false;
cda4b7d3 5571
ddc9003c 5572 if (is_lvds && dev_priv->lvds_downclock_avail) {
cec2f356
SP		 5573 /*
5574 * Ensure we match the reduced clock's P to the target clock.
5575 * If the clocks don't match, we can't switch the display clock
5576 * by using the FP0/FP1. In such case we will disable the LVDS
5577 * downclock feature.
5578 */
6591c6e4
PZ		 5579 *has_reduced_clock = limit->find_pll(limit, crtc,
5580 dev_priv->lvds_downclock,
5581 refclk,
5582 clock,
5583 reduced_clock);
652c393a 5584 }
61e9653f
DV		 5585
5586 if (is_sdvo && is_tv)
f47709a9 5587 i9xx_adjust_sdvo_tv_clock(to_intel_crtc(crtc));
6591c6e4
PZ		 5588
5589 return true;
5590}
5591
01a415fd
DV		 5592static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
5593{
5594 struct drm_i915_private *dev_priv = dev->dev_private;
5595 uint32_t temp;
5596
5597 temp = I915_READ(SOUTH_CHICKEN1);
5598 if (temp & FDI_BC_BIFURCATION_SELECT)
5599 return;
5600
5601 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
5602 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
5603
5604 temp |= FDI_BC_BIFURCATION_SELECT;
5605 DRM_DEBUG_KMS("enabling fdi C rx\n");
5606 I915_WRITE(SOUTH_CHICKEN1, temp);
5607 POSTING_READ(SOUTH_CHICKEN1);
5608}
5609
ebfd86fd
DV		 5610static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
5611{
5612 struct drm_device *dev = intel_crtc->base.dev;
5613 struct drm_i915_private *dev_priv = dev->dev_private;
5614
5615 switch (intel_crtc->pipe) {
5616 case PIPE_A:
5617 break;
5618 case PIPE_B:
5619 if (intel_crtc->config.fdi_lanes > 2)
5620 WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
5621 else
5622 cpt_enable_fdi_bc_bifurcation(dev);
5623
5624 break;
5625 case PIPE_C:
01a415fd
DV		 5626 cpt_enable_fdi_bc_bifurcation(dev);
5627
ebfd86fd 5628 break;
01a415fd
DV		 5629 default:
5630 BUG();
5631 }
5632}
5633
d4b1931c
PZ		 5634int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
5635{
5636 /*
5637 * Account for spread spectrum to avoid
5638 * oversubscribing the link. Max center spread
5639 * is 2.5%; use 5% for safety's sake.
5640 */
5641 u32 bps = target_clock * bpp * 21 / 20;
5642 return bps / (link_bw * 8) + 1;
5643}
5644
7429e9d4
DV		 5645static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
5646{
5647 return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
5648}
5649
de13a2e3 5650static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
7429e9d4 5651 u32 *fp,
9a7c7890 5652 intel_clock_t *reduced_clock, u32 *fp2)
79e53945 5653{
de13a2e3 5654 struct drm_crtc *crtc = &intel_crtc->base;
79e53945
JB		 5655 struct drm_device *dev = crtc->dev;
5656 struct drm_i915_private *dev_priv = dev->dev_private;
de13a2e3
PZ		 5657 struct intel_encoder *intel_encoder;
5658 uint32_t dpll;
6cc5f341 5659 int factor, num_connectors = 0;
de13a2e3 5660 bool is_lvds = false, is_sdvo = false, is_tv = false;
79e53945 5661
de13a2e3
PZ		 5662 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5663 switch (intel_encoder->type) {
79e53945
JB		 5664 case INTEL_OUTPUT_LVDS:
5665 is_lvds = true;
5666 break;
5667 case INTEL_OUTPUT_SDVO:
7d57382e 5668 case INTEL_OUTPUT_HDMI:
79e53945 5669 is_sdvo = true;
de13a2e3 5670 if (intel_encoder->needs_tv_clock)
e2f0ba97 5671 is_tv = true;
79e53945 5672 break;
79e53945
JB		 5673 case INTEL_OUTPUT_TVOUT:
5674 is_tv = true;
5675 break;
79e53945 5676 }
43565a06 5677
c751ce4f 5678 num_connectors++;
79e53945 5679 }
79e53945 5680
c1858123 5681 /* Enable autotuning of the PLL clock (if permissible) */
8febb297
EA		 5682 factor = 21;
5683 if (is_lvds) {
5684 if ((intel_panel_use_ssc(dev_priv) &&
5685 dev_priv->lvds_ssc_freq == 100) ||
f0b44056 5686 (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
8febb297
EA		 5687 factor = 25;
5688 } else if (is_sdvo && is_tv)
5689 factor = 20;
c1858123 5690
7429e9d4 5691 if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor))
7d0ac5b7 5692 *fp |= FP_CB_TUNE;
2c07245f 5693
9a7c7890
DV		 5694 if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
5695 *fp2 |= FP_CB_TUNE;
5696
5eddb70b 5697 dpll = 0;
2c07245f 5698
a07d6787
EA		 5699 if (is_lvds)
5700 dpll |= DPLLB_MODE_LVDS;
5701 else
5702 dpll |= DPLLB_MODE_DAC_SERIAL;
198a037f
DV		 5703
5704 if (intel_crtc->config.pixel_multiplier > 1) {
5705 dpll |= (intel_crtc->config.pixel_multiplier - 1)
5706 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
a07d6787 5707 }
198a037f
DV		 5708
5709 if (is_sdvo)
5710 dpll |= DPLL_DVO_HIGH_SPEED;
9566e9af 5711 if (intel_crtc->config.has_dp_encoder)
a07d6787 5712 dpll |= DPLL_DVO_HIGH_SPEED;
79e53945 5713
a07d6787 5714 /* compute bitmask from p1 value */
7429e9d4 5715 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
a07d6787 5716 /* also FPA1 */
7429e9d4 5717 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
a07d6787 5718
7429e9d4 5719 switch (intel_crtc->config.dpll.p2) {
a07d6787
EA		 5720 case 5:
5721 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
5722 break;
5723 case 7:
5724 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
5725 break;
5726 case 10:
5727 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
5728 break;
5729 case 14:
5730 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
5731 break;
79e53945
JB		 5732 }
5733
43565a06
KH		 5734 if (is_sdvo && is_tv)
5735 dpll |= PLL_REF_INPUT_TVCLKINBC;
5736 else if (is_tv)
79e53945 5737 /* XXX: just matching BIOS for now */
43565a06 5738 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
79e53945 5739 dpll |= 3;
a7615030 5740 else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
43565a06 5741 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
79e53945
JB		 5742 else
5743 dpll |= PLL_REF_INPUT_DREFCLK;
5744
de13a2e3
PZ		 5745 return dpll;
5746}
5747
5748static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
de13a2e3
PZ		 5749 int x, int y,
5750 struct drm_framebuffer *fb)
5751{
5752 struct drm_device *dev = crtc->dev;
5753 struct drm_i915_private *dev_priv = dev->dev_private;
5754 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
b8cecdf5
DV		 5755 struct drm_display_mode *adjusted_mode =
5756 &intel_crtc->config.adjusted_mode;
5757 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
de13a2e3
PZ		 5758 int pipe = intel_crtc->pipe;
5759 int plane = intel_crtc->plane;
5760 int num_connectors = 0;
5761 intel_clock_t clock, reduced_clock;
cbbab5bd 5762 u32 dpll = 0, fp = 0, fp2 = 0;
e2f12b07 5763 bool ok, has_reduced_clock = false;
8b47047b 5764 bool is_lvds = false;
de13a2e3 5765 struct intel_encoder *encoder;
de13a2e3 5766 int ret;
de13a2e3
PZ		 5767
5768 for_each_encoder_on_crtc(dev, crtc, encoder) {
5769 switch (encoder->type) {
5770 case INTEL_OUTPUT_LVDS:
5771 is_lvds = true;
5772 break;
de13a2e3
PZ		 5773 }
5774
5775 num_connectors++;
a07d6787 5776 }
79e53945 5777
5dc5298b
PZ		 5778 WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
5779 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
a07d6787 5780
3b117c8f 5781 intel_crtc->config.cpu_transcoder = pipe;
6cf86a5e 5782
de13a2e3
PZ		 5783 ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock,
5784 &has_reduced_clock, &reduced_clock);
5785 if (!ok) {
5786 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5787 return -EINVAL;
79e53945 5788 }
f47709a9
DV		 5789 /* Compat-code for transition, will disappear. */
5790 if (!intel_crtc->config.clock_set) {
5791 intel_crtc->config.dpll.n = clock.n;
5792 intel_crtc->config.dpll.m1 = clock.m1;
5793 intel_crtc->config.dpll.m2 = clock.m2;
5794 intel_crtc->config.dpll.p1 = clock.p1;
5795 intel_crtc->config.dpll.p2 = clock.p2;
5796 }
79e53945 5797
de13a2e3
PZ		 5798 /* Ensure that the cursor is valid for the new mode before changing... */
5799 intel_crtc_update_cursor(crtc, true);
5800
84f44ce7 5801 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe_name(pipe));
79e53945
JB		 5802 drm_mode_debug_printmodeline(mode);
5803
5dc5298b 5804 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
8b47047b 5805 if (intel_crtc->config.has_pch_encoder) {
ee7b9f93 5806 struct intel_pch_pll *pll;
4b645f14 5807
7429e9d4 5808 fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
cbbab5bd 5809 if (has_reduced_clock)
7429e9d4 5810 fp2 = i9xx_dpll_compute_fp(&reduced_clock);
cbbab5bd 5811
7429e9d4 5812 dpll = ironlake_compute_dpll(intel_crtc,
cbbab5bd
DV		 5813 &fp, &reduced_clock,
5814 has_reduced_clock ? &fp2 : NULL);
5815
ee7b9f93
JB		 5816 pll = intel_get_pch_pll(intel_crtc, dpll, fp);
5817 if (pll == NULL) {
84f44ce7
VS		 5818 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
5819 pipe_name(pipe));
4b645f14
JB		 5820 return -EINVAL;
5821 }
ee7b9f93
JB		 5822 } else
5823 intel_put_pch_pll(intel_crtc);
79e53945 5824
03afc4a2
DV		 5825 if (intel_crtc->config.has_dp_encoder)
5826 intel_dp_set_m_n(intel_crtc);
79e53945 5827
dafd226c
DV		 5828 for_each_encoder_on_crtc(dev, crtc, encoder)
5829 if (encoder->pre_pll_enable)
5830 encoder->pre_pll_enable(encoder);
79e53945 5831
ee7b9f93
JB		 5832 if (intel_crtc->pch_pll) {
5833 I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll);
5eddb70b 5834
32f9d658 5835 /* Wait for the clocks to stabilize. */
ee7b9f93 5836 POSTING_READ(intel_crtc->pch_pll->pll_reg);
32f9d658
ZW		 5837 udelay(150);
5838
8febb297
EA		 5839 /* The pixel multiplier can only be updated once the
5840 * DPLL is enabled and the clocks are stable.
5841 *
5842 * So write it again.
5843 */
ee7b9f93 5844 I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll);
79e53945 5845 }
79e53945 5846
5eddb70b 5847 intel_crtc->lowfreq_avail = false;
ee7b9f93 5848 if (intel_crtc->pch_pll) {
4b645f14 5849 if (is_lvds && has_reduced_clock && i915_powersave) {
ee7b9f93 5850 I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2);
4b645f14 5851 intel_crtc->lowfreq_avail = true;
4b645f14 5852 } else {
ee7b9f93 5853 I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp);
652c393a
JB		 5854 }
5855 }
5856
b0e77b9c 5857 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
5eddb70b 5858
ca3a0ff8 5859 if (intel_crtc->config.has_pch_encoder) {
ca3a0ff8
DV		 5860 intel_cpu_transcoder_set_m_n(intel_crtc,
5861 &intel_crtc->config.fdi_m_n);
5862 }
2c07245f 5863
ebfd86fd
DV		 5864 if (IS_IVYBRIDGE(dev))
5865 ivybridge_update_fdi_bc_bifurcation(intel_crtc);
2c07245f 5866
6ff93609 5867 ironlake_set_pipeconf(crtc);
79e53945 5868
a1f9e77e
PZ		 5869 /* Set up the display plane register */
5870 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
b24e7179 5871 POSTING_READ(DSPCNTR(plane));
79e53945 5872
94352cf9 5873 ret = intel_pipe_set_base(crtc, x, y, fb);
7662c8bd
SL		 5874
5875 intel_update_watermarks(dev);
5876
1f8eeabf
ED		 5877 intel_update_linetime_watermarks(dev, pipe, adjusted_mode);
5878
1857e1da 5879 return ret;
79e53945
JB		 5880}
5881
72419203
DV		 5882static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc,
5883 struct intel_crtc_config *pipe_config)
5884{
5885 struct drm_device *dev = crtc->base.dev;
5886 struct drm_i915_private *dev_priv = dev->dev_private;
5887 enum transcoder transcoder = pipe_config->cpu_transcoder;
5888
5889 pipe_config->fdi_m_n.link_m = I915_READ(PIPE_LINK_M1(transcoder));
5890 pipe_config->fdi_m_n.link_n = I915_READ(PIPE_LINK_N1(transcoder));
5891 pipe_config->fdi_m_n.gmch_m = I915_READ(PIPE_DATA_M1(transcoder))
5892 & ~TU_SIZE_MASK;
5893 pipe_config->fdi_m_n.gmch_n = I915_READ(PIPE_DATA_N1(transcoder));
5894 pipe_config->fdi_m_n.tu = ((I915_READ(PIPE_DATA_M1(transcoder))
5895 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
5896}
5897
0e8ffe1b
DV		 5898static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
5899 struct intel_crtc_config *pipe_config)
5900{
5901 struct drm_device *dev = crtc->base.dev;
5902 struct drm_i915_private *dev_priv = dev->dev_private;
5903 uint32_t tmp;
5904
5905 tmp = I915_READ(PIPECONF(crtc->pipe));
5906 if (!(tmp & PIPECONF_ENABLE))
5907 return false;
5908
ab9412ba 5909 if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
88adfff1
DV		 5910 pipe_config->has_pch_encoder = true;
5911
627eb5a3
DV		 5912 tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
5913 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
5914 FDI_DP_PORT_WIDTH_SHIFT) + 1;
72419203
DV		 5915
5916 ironlake_get_fdi_m_n_config(crtc, pipe_config);
627eb5a3
DV		 5917 }
5918
1bd1bd80
DV		 5919 intel_get_pipe_timings(crtc, pipe_config);
5920
0e8ffe1b
DV		 5921 return true;
5922}
5923
d6dd9eb1
DV		 5924static void haswell_modeset_global_resources(struct drm_device *dev)
5925{
d6dd9eb1
DV		 5926 bool enable = false;
5927 struct intel_crtc *crtc;
5928 struct intel_encoder *encoder;
5929
5930 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
5931 if (crtc->pipe != PIPE_A && crtc->base.enabled)
5932 enable = true;
5933 /* XXX: Should check for edp transcoder here, but thanks to init
5934 * sequence that's not yet available. Just in case desktop eDP
5935 * on PORT D is possible on haswell, too. */
b074cec8 5936 /* Even the eDP panel fitter is outside the always-on well. */
2b87f3b1 5937 if (crtc->config.pch_pfit.size && crtc->base.enabled)
b074cec8 5938 enable = true;
d6dd9eb1
DV		 5939 }
5940
5941 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
5942 base.head) {
5943 if (encoder->type != INTEL_OUTPUT_EDP &&
5944 encoder->connectors_active)
5945 enable = true;
5946 }
5947
d6dd9eb1
DV		 5948 intel_set_power_well(dev, enable);
5949}
5950
09b4ddf9 5951static int haswell_crtc_mode_set(struct drm_crtc *crtc,
09b4ddf9
PZ		 5952 int x, int y,
5953 struct drm_framebuffer *fb)
5954{
5955 struct drm_device *dev = crtc->dev;
5956 struct drm_i915_private *dev_priv = dev->dev_private;
5957 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
b8cecdf5
DV		 5958 struct drm_display_mode *adjusted_mode =
5959 &intel_crtc->config.adjusted_mode;
5960 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
09b4ddf9
PZ		 5961 int pipe = intel_crtc->pipe;
5962 int plane = intel_crtc->plane;
5963 int num_connectors = 0;
8b47047b 5964 bool is_cpu_edp = false;
09b4ddf9 5965 struct intel_encoder *encoder;
09b4ddf9 5966 int ret;
09b4ddf9
PZ		 5967
5968 for_each_encoder_on_crtc(dev, crtc, encoder) {
5969 switch (encoder->type) {
09b4ddf9 5970 case INTEL_OUTPUT_EDP:
09b4ddf9
PZ		 5971 if (!intel_encoder_is_pch_edp(&encoder->base))
5972 is_cpu_edp = true;
5973 break;
5974 }
5975
5976 num_connectors++;
5977 }
5978
bba2181c 5979 if (is_cpu_edp)
3b117c8f 5980 intel_crtc->config.cpu_transcoder = TRANSCODER_EDP;
bba2181c 5981 else
3b117c8f 5982 intel_crtc->config.cpu_transcoder = pipe;
bba2181c 5983
5dc5298b
PZ		 5984 /* We are not sure yet this won't happen. */
5985 WARN(!HAS_PCH_LPT(dev), "Unexpected PCH type %d\n",
5986 INTEL_PCH_TYPE(dev));
5987
5988 WARN(num_connectors != 1, "%d connectors attached to pipe %c\n",
5989 num_connectors, pipe_name(pipe));
5990
3b117c8f 5991 WARN_ON(I915_READ(PIPECONF(intel_crtc->config.cpu_transcoder)) &
1ce42920
PZ		 5992 (PIPECONF_ENABLE | I965_PIPECONF_ACTIVE));
5993
5994 WARN_ON(I915_READ(DSPCNTR(plane)) & DISPLAY_PLANE_ENABLE);
5995
6441ab5f
PZ		 5996 if (!intel_ddi_pll_mode_set(crtc, adjusted_mode->clock))
5997 return -EINVAL;
5998
09b4ddf9
PZ		 5999 /* Ensure that the cursor is valid for the new mode before changing... */
6000 intel_crtc_update_cursor(crtc, true);
6001
84f44ce7 6002 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe_name(pipe));
09b4ddf9
PZ		 6003 drm_mode_debug_printmodeline(mode);
6004
03afc4a2
DV		 6005 if (intel_crtc->config.has_dp_encoder)
6006 intel_dp_set_m_n(intel_crtc);
09b4ddf9
PZ		 6007
6008 intel_crtc->lowfreq_avail = false;
09b4ddf9
PZ		 6009
6010 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
6011
ca3a0ff8 6012 if (intel_crtc->config.has_pch_encoder) {
ca3a0ff8
DV		 6013 intel_cpu_transcoder_set_m_n(intel_crtc,
6014 &intel_crtc->config.fdi_m_n);
6015 }
09b4ddf9 6016
6ff93609 6017 haswell_set_pipeconf(crtc);
09b4ddf9 6018
50f3b016 6019 intel_set_pipe_csc(crtc);
86d3efce 6020
09b4ddf9 6021 /* Set up the display plane register */
86d3efce 6022 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
09b4ddf9
PZ		 6023 POSTING_READ(DSPCNTR(plane));
6024
6025 ret = intel_pipe_set_base(crtc, x, y, fb);
6026
6027 intel_update_watermarks(dev);
6028
6029 intel_update_linetime_watermarks(dev, pipe, adjusted_mode);
6030
1f803ee5 6031 return ret;
79e53945
JB		 6032}
6033
0e8ffe1b
DV		 6034static bool haswell_get_pipe_config(struct intel_crtc *crtc,
6035 struct intel_crtc_config *pipe_config)
6036{
6037 struct drm_device *dev = crtc->base.dev;
6038 struct drm_i915_private *dev_priv = dev->dev_private;
2bfce950 6039 enum transcoder cpu_transcoder = crtc->config.cpu_transcoder;
0e8ffe1b
DV		 6040 uint32_t tmp;
6041
2bfce950
PZ		 6042 if (!intel_using_power_well(dev_priv->dev) &&
6043 cpu_transcoder != TRANSCODER_EDP)
6044 return false;
6045
6046 tmp = I915_READ(PIPECONF(cpu_transcoder));
0e8ffe1b
DV		 6047 if (!(tmp & PIPECONF_ENABLE))
6048 return false;
6049
88adfff1 6050 /*
f196e6be 6051 * Haswell has only FDI/PCH transcoder A. It is which is connected to
88adfff1
DV		 6052 * DDI E. So just check whether this pipe is wired to DDI E and whether
6053 * the PCH transcoder is on.
6054 */
f196e6be 6055 tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
88adfff1 6056 if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
ab9412ba 6057 I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
88adfff1
DV		 6058 pipe_config->has_pch_encoder = true;
6059
627eb5a3
DV		 6060 tmp = I915_READ(FDI_RX_CTL(PIPE_A));
6061 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
6062 FDI_DP_PORT_WIDTH_SHIFT) + 1;
72419203
DV		 6063
6064 ironlake_get_fdi_m_n_config(crtc, pipe_config);
627eb5a3
DV		 6065 }
6066
1bd1bd80
DV		 6067 intel_get_pipe_timings(crtc, pipe_config);
6068
0e8ffe1b
DV		 6069 return true;
6070}
6071
f564048e 6072static int intel_crtc_mode_set(struct drm_crtc *crtc,
f564048e 6073 int x, int y,
94352cf9 6074 struct drm_framebuffer *fb)
f564048e
EA		 6075{
6076 struct drm_device *dev = crtc->dev;
6077 struct drm_i915_private *dev_priv = dev->dev_private;
9256aa19
DV		 6078 struct drm_encoder_helper_funcs *encoder_funcs;
6079 struct intel_encoder *encoder;
0b701d27 6080 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
b8cecdf5
DV		 6081 struct drm_display_mode *adjusted_mode =
6082 &intel_crtc->config.adjusted_mode;
6083 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
0b701d27 6084 int pipe = intel_crtc->pipe;
f564048e
EA		 6085 int ret;
6086
0b701d27 6087 drm_vblank_pre_modeset(dev, pipe);
7662c8bd 6088
b8cecdf5
DV		 6089 ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
6090
79e53945 6091 drm_vblank_post_modeset(dev, pipe);
5c3b82e2 6092
9256aa19
DV		 6093 if (ret != 0)
6094 return ret;
6095
6096 for_each_encoder_on_crtc(dev, crtc, encoder) {
6097 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
6098 encoder->base.base.id,
6099 drm_get_encoder_name(&encoder->base),
6100 mode->base.id, mode->name);
6cc5f341
DV		 6101 if (encoder->mode_set) {
6102 encoder->mode_set(encoder);
6103 } else {
6104 encoder_funcs = encoder->base.helper_private;
6105 encoder_funcs->mode_set(&encoder->base, mode, adjusted_mode);
6106 }
9256aa19
DV		 6107 }
6108
6109 return 0;
79e53945
JB		 6110}
6111
3a9627f4
WF		 6112static bool intel_eld_uptodate(struct drm_connector *connector,
6113 int reg_eldv, uint32_t bits_eldv,
6114 int reg_elda, uint32_t bits_elda,
6115 int reg_edid)
6116{
6117 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6118 uint8_t *eld = connector->eld;
6119 uint32_t i;
6120
6121 i = I915_READ(reg_eldv);
6122 i &= bits_eldv;
6123
6124 if (!eld[0])
6125 return !i;
6126
6127 if (!i)
6128 return false;
6129
6130 i = I915_READ(reg_elda);
6131 i &= ~bits_elda;
6132 I915_WRITE(reg_elda, i);
6133
6134 for (i = 0; i < eld[2]; i++)
6135 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
6136 return false;
6137
6138 return true;
6139}
6140
e0dac65e
WF		 6141static void g4x_write_eld(struct drm_connector *connector,
6142 struct drm_crtc *crtc)
6143{
6144 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6145 uint8_t *eld = connector->eld;
6146 uint32_t eldv;
6147 uint32_t len;
6148 uint32_t i;
6149
6150 i = I915_READ(G4X_AUD_VID_DID);
6151
6152 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
6153 eldv = G4X_ELDV_DEVCL_DEVBLC;
6154 else
6155 eldv = G4X_ELDV_DEVCTG;
6156
3a9627f4
WF		 6157 if (intel_eld_uptodate(connector,
6158 G4X_AUD_CNTL_ST, eldv,
6159 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
6160 G4X_HDMIW_HDMIEDID))
6161 return;
6162
e0dac65e
WF		 6163 i = I915_READ(G4X_AUD_CNTL_ST);
6164 i &= ~(eldv | G4X_ELD_ADDR);
6165 len = (i >> 9) & 0x1f; /* ELD buffer size */
6166 I915_WRITE(G4X_AUD_CNTL_ST, i);
6167
6168 if (!eld[0])
6169 return;
6170
6171 len = min_t(uint8_t, eld[2], len);
6172 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6173 for (i = 0; i < len; i++)
6174 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
6175
6176 i = I915_READ(G4X_AUD_CNTL_ST);
6177 i |= eldv;
6178 I915_WRITE(G4X_AUD_CNTL_ST, i);
6179}
6180
83358c85
WX		 6181static void haswell_write_eld(struct drm_connector *connector,
6182 struct drm_crtc *crtc)
6183{
6184 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6185 uint8_t *eld = connector->eld;
6186 struct drm_device *dev = crtc->dev;
7b9f35a6 6187 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
83358c85
WX		 6188 uint32_t eldv;
6189 uint32_t i;
6190 int len;
6191 int pipe = to_intel_crtc(crtc)->pipe;
6192 int tmp;
6193
6194 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
6195 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
6196 int aud_config = HSW_AUD_CFG(pipe);
6197 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
6198
6199
6200 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
6201
6202 /* Audio output enable */
6203 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
6204 tmp = I915_READ(aud_cntrl_st2);
6205 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
6206 I915_WRITE(aud_cntrl_st2, tmp);
6207
6208 /* Wait for 1 vertical blank */
6209 intel_wait_for_vblank(dev, pipe);
6210
6211 /* Set ELD valid state */
6212 tmp = I915_READ(aud_cntrl_st2);
6213 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp);
6214 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
6215 I915_WRITE(aud_cntrl_st2, tmp);
6216 tmp = I915_READ(aud_cntrl_st2);
6217 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp);
6218
6219 /* Enable HDMI mode */
6220 tmp = I915_READ(aud_config);
6221 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp);
6222 /* clear N_programing_enable and N_value_index */
6223 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
6224 I915_WRITE(aud_config, tmp);
6225
6226 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6227
6228 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
7b9f35a6 6229 intel_crtc->eld_vld = true;
83358c85
WX		 6230
6231 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6232 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6233 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6234 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6235 } else
6236 I915_WRITE(aud_config, 0);
6237
6238 if (intel_eld_uptodate(connector,
6239 aud_cntrl_st2, eldv,
6240 aud_cntl_st, IBX_ELD_ADDRESS,
6241 hdmiw_hdmiedid))
6242 return;
6243
6244 i = I915_READ(aud_cntrl_st2);
6245 i &= ~eldv;
6246 I915_WRITE(aud_cntrl_st2, i);
6247
6248 if (!eld[0])
6249 return;
6250
6251 i = I915_READ(aud_cntl_st);
6252 i &= ~IBX_ELD_ADDRESS;
6253 I915_WRITE(aud_cntl_st, i);
6254 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6255 DRM_DEBUG_DRIVER("port num:%d\n", i);
6256
6257 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6258 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6259 for (i = 0; i < len; i++)
6260 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6261
6262 i = I915_READ(aud_cntrl_st2);
6263 i |= eldv;
6264 I915_WRITE(aud_cntrl_st2, i);
6265
6266}
6267
e0dac65e
WF		 6268static void ironlake_write_eld(struct drm_connector *connector,
6269 struct drm_crtc *crtc)
6270{
6271 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6272 uint8_t *eld = connector->eld;
6273 uint32_t eldv;
6274 uint32_t i;
6275 int len;
6276 int hdmiw_hdmiedid;
b6daa025 6277 int aud_config;
e0dac65e
WF		 6278 int aud_cntl_st;
6279 int aud_cntrl_st2;
9b138a83 6280 int pipe = to_intel_crtc(crtc)->pipe;
e0dac65e 6281
b3f33cbf 6282 if (HAS_PCH_IBX(connector->dev)) {
9b138a83
WX		 6283 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
6284 aud_config = IBX_AUD_CFG(pipe);
6285 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
1202b4c6 6286 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
e0dac65e 6287 } else {
9b138a83
WX		 6288 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
6289 aud_config = CPT_AUD_CFG(pipe);
6290 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
1202b4c6 6291 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
e0dac65e
WF		 6292 }
6293
9b138a83 6294 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
e0dac65e
WF		 6295
6296 i = I915_READ(aud_cntl_st);
9b138a83 6297 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
e0dac65e
WF		 6298 if (!i) {
6299 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
6300 /* operate blindly on all ports */
1202b4c6
WF		 6301 eldv = IBX_ELD_VALIDB;
6302 eldv |= IBX_ELD_VALIDB << 4;
6303 eldv |= IBX_ELD_VALIDB << 8;
e0dac65e 6304 } else {
2582a850 6305 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i));
1202b4c6 6306 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
e0dac65e
WF		 6307 }
6308
3a9627f4
WF		 6309 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6310 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6311 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
b6daa025
WF		 6312 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6313 } else
6314 I915_WRITE(aud_config, 0);
e0dac65e 6315
3a9627f4
WF		 6316 if (intel_eld_uptodate(connector,
6317 aud_cntrl_st2, eldv,
6318 aud_cntl_st, IBX_ELD_ADDRESS,
6319 hdmiw_hdmiedid))
6320 return;
6321
e0dac65e
WF		 6322 i = I915_READ(aud_cntrl_st2);
6323 i &= ~eldv;
6324 I915_WRITE(aud_cntrl_st2, i);
6325
6326 if (!eld[0])
6327 return;
6328
e0dac65e 6329 i = I915_READ(aud_cntl_st);
1202b4c6 6330 i &= ~IBX_ELD_ADDRESS;
e0dac65e
WF		 6331 I915_WRITE(aud_cntl_st, i);
6332
6333 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6334 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6335 for (i = 0; i < len; i++)
6336 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6337
6338 i = I915_READ(aud_cntrl_st2);
6339 i |= eldv;
6340 I915_WRITE(aud_cntrl_st2, i);
6341}
6342
6343void intel_write_eld(struct drm_encoder *encoder,
6344 struct drm_display_mode *mode)
6345{
6346 struct drm_crtc *crtc = encoder->crtc;
6347 struct drm_connector *connector;
6348 struct drm_device *dev = encoder->dev;
6349 struct drm_i915_private *dev_priv = dev->dev_private;
6350
6351 connector = drm_select_eld(encoder, mode);
6352 if (!connector)
6353 return;
6354
6355 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6356 connector->base.id,
6357 drm_get_connector_name(connector),
6358 connector->encoder->base.id,
6359 drm_get_encoder_name(connector->encoder));
6360
6361 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
6362
6363 if (dev_priv->display.write_eld)
6364 dev_priv->display.write_eld(connector, crtc);
6365}
6366
79e53945
JB		 6367/** Loads the palette/gamma unit for the CRTC with the prepared values */
6368void intel_crtc_load_lut(struct drm_crtc *crtc)
6369{
6370 struct drm_device *dev = crtc->dev;
6371 struct drm_i915_private *dev_priv = dev->dev_private;
6372 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
9db4a9c7 6373 int palreg = PALETTE(intel_crtc->pipe);
79e53945
JB		 6374 int i;
6375
6376 /* The clocks have to be on to load the palette. */
aed3f09d 6377 if (!crtc->enabled || !intel_crtc->active)
79e53945
JB		 6378 return;
6379
f2b115e6 6380 /* use legacy palette for Ironlake */
bad720ff 6381 if (HAS_PCH_SPLIT(dev))
9db4a9c7 6382 palreg = LGC_PALETTE(intel_crtc->pipe);
2c07245f 6383
79e53945
JB		 6384 for (i = 0; i < 256; i++) {
6385 I915_WRITE(palreg + 4 * i,
6386 (intel_crtc->lut_r[i] << 16) |
6387 (intel_crtc->lut_g[i] << 8) |
6388 intel_crtc->lut_b[i]);
6389 }
6390}
6391
560b85bb
CW		 6392static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
6393{
6394 struct drm_device *dev = crtc->dev;
6395 struct drm_i915_private *dev_priv = dev->dev_private;
6396 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6397 bool visible = base != 0;
6398 u32 cntl;
6399
6400 if (intel_crtc->cursor_visible == visible)
6401 return;
6402
9db4a9c7 6403 cntl = I915_READ(_CURACNTR);
560b85bb
CW		 6404 if (visible) {
6405 /* On these chipsets we can only modify the base whilst
6406 * the cursor is disabled.
6407 */
9db4a9c7 6408 I915_WRITE(_CURABASE, base);
560b85bb
CW		 6409
6410 cntl &= ~(CURSOR_FORMAT_MASK);
6411 /* XXX width must be 64, stride 256 => 0x00 << 28 */
6412 cntl |= CURSOR_ENABLE |
6413 CURSOR_GAMMA_ENABLE |
6414 CURSOR_FORMAT_ARGB;
6415 } else
6416 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
9db4a9c7 6417 I915_WRITE(_CURACNTR, cntl);
560b85bb
CW		 6418
6419 intel_crtc->cursor_visible = visible;
6420}
6421
6422static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
6423{
6424 struct drm_device *dev = crtc->dev;
6425 struct drm_i915_private *dev_priv = dev->dev_private;
6426 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6427 int pipe = intel_crtc->pipe;
6428 bool visible = base != 0;
6429
6430 if (intel_crtc->cursor_visible != visible) {
548f245b 6431 uint32_t cntl = I915_READ(CURCNTR(pipe));
560b85bb
CW		 6432 if (base) {
6433 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
6434 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6435 cntl |= pipe << 28; /* Connect to correct pipe */
6436 } else {
6437 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6438 cntl |= CURSOR_MODE_DISABLE;
6439 }
9db4a9c7 6440 I915_WRITE(CURCNTR(pipe), cntl);
560b85bb
CW		 6441
6442 intel_crtc->cursor_visible = visible;
6443 }
6444 /* and commit changes on next vblank */
9db4a9c7 6445 I915_WRITE(CURBASE(pipe), base);
560b85bb
CW		 6446}
6447
65a21cd6
JB		 6448static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
6449{
6450 struct drm_device *dev = crtc->dev;
6451 struct drm_i915_private *dev_priv = dev->dev_private;
6452 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6453 int pipe = intel_crtc->pipe;
6454 bool visible = base != 0;
6455
6456 if (intel_crtc->cursor_visible != visible) {
6457 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
6458 if (base) {
6459 cntl &= ~CURSOR_MODE;
6460 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6461 } else {
6462 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6463 cntl |= CURSOR_MODE_DISABLE;
6464 }
86d3efce
VS		 6465 if (IS_HASWELL(dev))
6466 cntl |= CURSOR_PIPE_CSC_ENABLE;
65a21cd6
JB		 6467 I915_WRITE(CURCNTR_IVB(pipe), cntl);
6468
6469 intel_crtc->cursor_visible = visible;
6470 }
6471 /* and commit changes on next vblank */
6472 I915_WRITE(CURBASE_IVB(pipe), base);
6473}
6474
cda4b7d3 6475/* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
6b383a7f
CW		 6476static void intel_crtc_update_cursor(struct drm_crtc *crtc,
6477 bool on)
cda4b7d3
CW		 6478{
6479 struct drm_device *dev = crtc->dev;
6480 struct drm_i915_private *dev_priv = dev->dev_private;
6481 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6482 int pipe = intel_crtc->pipe;
6483 int x = intel_crtc->cursor_x;
6484 int y = intel_crtc->cursor_y;
560b85bb 6485 u32 base, pos;
cda4b7d3
CW		 6486 bool visible;
6487
6488 pos = 0;
6489
6b383a7f 6490 if (on && crtc->enabled && crtc->fb) {
cda4b7d3
CW		 6491 base = intel_crtc->cursor_addr;
6492 if (x > (int) crtc->fb->width)
6493 base = 0;
6494
6495 if (y > (int) crtc->fb->height)
6496 base = 0;
6497 } else
6498 base = 0;
6499
6500 if (x < 0) {
6501 if (x + intel_crtc->cursor_width < 0)
6502 base = 0;
6503
6504 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
6505 x = -x;
6506 }
6507 pos |= x << CURSOR_X_SHIFT;
6508
6509 if (y < 0) {
6510 if (y + intel_crtc->cursor_height < 0)
6511 base = 0;
6512
6513 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
6514 y = -y;
6515 }
6516 pos |= y << CURSOR_Y_SHIFT;
6517
6518 visible = base != 0;
560b85bb 6519 if (!visible && !intel_crtc->cursor_visible)
cda4b7d3
CW		 6520 return;
6521
0cd83aa9 6522 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
65a21cd6
JB		 6523 I915_WRITE(CURPOS_IVB(pipe), pos);
6524 ivb_update_cursor(crtc, base);
6525 } else {
6526 I915_WRITE(CURPOS(pipe), pos);
6527 if (IS_845G(dev) || IS_I865G(dev))
6528 i845_update_cursor(crtc, base);
6529 else
6530 i9xx_update_cursor(crtc, base);
6531 }
cda4b7d3
CW		 6532}
6533
79e53945 6534static int intel_crtc_cursor_set(struct drm_crtc *crtc,
05394f39 6535 struct drm_file *file,
79e53945
JB		 6536 uint32_t handle,
6537 uint32_t width, uint32_t height)
6538{
6539 struct drm_device *dev = crtc->dev;
6540 struct drm_i915_private *dev_priv = dev->dev_private;
6541 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
05394f39 6542 struct drm_i915_gem_object *obj;
cda4b7d3 6543 uint32_t addr;
3f8bc370 6544 int ret;
79e53945 6545
79e53945
JB		 6546 /* if we want to turn off the cursor ignore width and height */
6547 if (!handle) {
28c97730 6548 DRM_DEBUG_KMS("cursor off\n");
3f8bc370 6549 addr = 0;
05394f39 6550 obj = NULL;
5004417d 6551 mutex_lock(&dev->struct_mutex);
3f8bc370 6552 goto finish;
79e53945
JB		 6553 }
6554
6555 /* Currently we only support 64x64 cursors */
6556 if (width != 64 || height != 64) {
6557 DRM_ERROR("we currently only support 64x64 cursors\n");
6558 return -EINVAL;
6559 }
6560
05394f39 6561 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
c8725226 6562 if (&obj->base == NULL)
79e53945
JB		 6563 return -ENOENT;
6564
05394f39 6565 if (obj->base.size < width * height * 4) {
79e53945 6566 DRM_ERROR("buffer is to small\n");
34b8686e
DA		 6567 ret = -ENOMEM;
6568 goto fail;
79e53945
JB		 6569 }
6570
71acb5eb 6571 /* we only need to pin inside GTT if cursor is non-phy */
7f9872e0 6572 mutex_lock(&dev->struct_mutex);
b295d1b6 6573 if (!dev_priv->info->cursor_needs_physical) {
693db184
CW		 6574 unsigned alignment;
6575
d9e86c0e
CW		 6576 if (obj->tiling_mode) {
6577 DRM_ERROR("cursor cannot be tiled\n");
6578 ret = -EINVAL;
6579 goto fail_locked;
6580 }
6581
693db184
CW		 6582 /* Note that the w/a also requires 2 PTE of padding following
6583 * the bo. We currently fill all unused PTE with the shadow
6584 * page and so we should always have valid PTE following the
6585 * cursor preventing the VT-d warning.
6586 */
6587 alignment = 0;
6588 if (need_vtd_wa(dev))
6589 alignment = 64*1024;
6590
6591 ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
e7b526bb
CW		 6592 if (ret) {
6593 DRM_ERROR("failed to move cursor bo into the GTT\n");
2da3b9b9 6594 goto fail_locked;
e7b526bb
CW		 6595 }
6596
d9e86c0e
CW		 6597 ret = i915_gem_object_put_fence(obj);
6598 if (ret) {
2da3b9b9 6599 DRM_ERROR("failed to release fence for cursor");
d9e86c0e
CW		 6600 goto fail_unpin;
6601 }
6602
05394f39 6603 addr = obj->gtt_offset;
71acb5eb 6604 } else {
6eeefaf3 6605 int align = IS_I830(dev) ? 16 * 1024 : 256;
05394f39 6606 ret = i915_gem_attach_phys_object(dev, obj,
6eeefaf3
CW		 6607 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
6608 align);
71acb5eb
DA		 6609 if (ret) {
6610 DRM_ERROR("failed to attach phys object\n");
7f9872e0 6611 goto fail_locked;
71acb5eb 6612 }
05394f39 6613 addr = obj->phys_obj->handle->busaddr;
3f8bc370
KH		 6614 }
6615
a6c45cf0 6616 if (IS_GEN2(dev))
14b60391
JB		 6617 I915_WRITE(CURSIZE, (height << 12) | width);
6618
3f8bc370 6619 finish:
3f8bc370 6620 if (intel_crtc->cursor_bo) {
b295d1b6 6621 if (dev_priv->info->cursor_needs_physical) {
05394f39 6622 if (intel_crtc->cursor_bo != obj)
71acb5eb
DA		 6623 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
6624 } else
6625 i915_gem_object_unpin(intel_crtc->cursor_bo);
05394f39 6626 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
3f8bc370 6627 }
80824003 6628
7f9872e0 6629 mutex_unlock(&dev->struct_mutex);
3f8bc370
KH		 6630
6631 intel_crtc->cursor_addr = addr;
05394f39 6632 intel_crtc->cursor_bo = obj;
cda4b7d3
CW		 6633 intel_crtc->cursor_width = width;
6634 intel_crtc->cursor_height = height;
6635
6b383a7f 6636 intel_crtc_update_cursor(crtc, true);
3f8bc370 6637
79e53945 6638 return 0;
e7b526bb 6639fail_unpin:
05394f39 6640 i915_gem_object_unpin(obj);
7f9872e0 6641fail_locked:
34b8686e 6642 mutex_unlock(&dev->struct_mutex);
bc9025bd 6643fail:
05394f39 6644 drm_gem_object_unreference_unlocked(&obj->base);
34b8686e 6645 return ret;
79e53945
JB		 6646}
6647
6648static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
6649{
79e53945 6650 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
79e53945 6651
cda4b7d3
CW		 6652 intel_crtc->cursor_x = x;
6653 intel_crtc->cursor_y = y;
652c393a 6654
6b383a7f 6655 intel_crtc_update_cursor(crtc, true);
79e53945
JB		 6656
6657 return 0;
6658}
6659
6660/** Sets the color ramps on behalf of RandR */
6661void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
6662 u16 blue, int regno)
6663{
6664 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6665
6666 intel_crtc->lut_r[regno] = red >> 8;
6667 intel_crtc->lut_g[regno] = green >> 8;
6668 intel_crtc->lut_b[regno] = blue >> 8;
6669}
6670
b8c00ac5
DA		 6671void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
6672 u16 *blue, int regno)
6673{
6674 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6675
6676 *red = intel_crtc->lut_r[regno] << 8;
6677 *green = intel_crtc->lut_g[regno] << 8;
6678 *blue = intel_crtc->lut_b[regno] << 8;
6679}
6680
79e53945 6681static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
7203425a 6682 u16 *blue, uint32_t start, uint32_t size)
79e53945 6683{
7203425a 6684 int end = (start + size > 256) ? 256 : start + size, i;
79e53945 6685 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
79e53945 6686
7203425a 6687 for (i = start; i < end; i++) {
79e53945
JB		 6688 intel_crtc->lut_r[i] = red[i] >> 8;
6689 intel_crtc->lut_g[i] = green[i] >> 8;
6690 intel_crtc->lut_b[i] = blue[i] >> 8;
6691 }
6692
6693 intel_crtc_load_lut(crtc);
6694}
6695
79e53945
JB		 6696/* VESA 640x480x72Hz mode to set on the pipe */
6697static struct drm_display_mode load_detect_mode = {
6698 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
6699 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
6700};
6701
d2dff872
CW		 6702static struct drm_framebuffer *
6703intel_framebuffer_create(struct drm_device *dev,
308e5bcb 6704 struct drm_mode_fb_cmd2 *mode_cmd,
d2dff872
CW		 6705 struct drm_i915_gem_object *obj)
6706{
6707 struct intel_framebuffer *intel_fb;
6708 int ret;
6709
6710 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
6711 if (!intel_fb) {
6712 drm_gem_object_unreference_unlocked(&obj->base);
6713 return ERR_PTR(-ENOMEM);
6714 }
6715
6716 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
6717 if (ret) {
6718 drm_gem_object_unreference_unlocked(&obj->base);
6719 kfree(intel_fb);
6720 return ERR_PTR(ret);
6721 }
6722
6723 return &intel_fb->base;
6724}
6725
6726static u32
6727intel_framebuffer_pitch_for_width(int width, int bpp)
6728{
6729 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
6730 return ALIGN(pitch, 64);
6731}
6732
6733static u32
6734intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
6735{
6736 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
6737 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
6738}
6739
6740static struct drm_framebuffer *
6741intel_framebuffer_create_for_mode(struct drm_device *dev,
6742 struct drm_display_mode *mode,
6743 int depth, int bpp)
6744{
6745 struct drm_i915_gem_object *obj;
0fed39bd 6746 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
d2dff872
CW		 6747
6748 obj = i915_gem_alloc_object(dev,
6749 intel_framebuffer_size_for_mode(mode, bpp));
6750 if (obj == NULL)
6751 return ERR_PTR(-ENOMEM);
6752
6753 mode_cmd.width = mode->hdisplay;
6754 mode_cmd.height = mode->vdisplay;
308e5bcb
JB		 6755 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
6756 bpp);
5ca0c34a 6757 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
d2dff872
CW		 6758
6759 return intel_framebuffer_create(dev, &mode_cmd, obj);
6760}
6761
6762static struct drm_framebuffer *
6763mode_fits_in_fbdev(struct drm_device *dev,
6764 struct drm_display_mode *mode)
6765{
6766 struct drm_i915_private *dev_priv = dev->dev_private;
6767 struct drm_i915_gem_object *obj;
6768 struct drm_framebuffer *fb;
6769
6770 if (dev_priv->fbdev == NULL)
6771 return NULL;
6772
6773 obj = dev_priv->fbdev->ifb.obj;
6774 if (obj == NULL)
6775 return NULL;
6776
6777 fb = &dev_priv->fbdev->ifb.base;
01f2c773
VS		 6778 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
6779 fb->bits_per_pixel))
d2dff872
CW		 6780 return NULL;
6781
01f2c773 6782 if (obj->base.size < mode->vdisplay * fb->pitches[0])
d2dff872
CW		 6783 return NULL;
6784
6785 return fb;
6786}
6787
d2434ab7 6788bool intel_get_load_detect_pipe(struct drm_connector *connector,
7173188d 6789 struct drm_display_mode *mode,
8261b191 6790 struct intel_load_detect_pipe *old)
79e53945
JB		 6791{
6792 struct intel_crtc *intel_crtc;
d2434ab7
DV		 6793 struct intel_encoder *intel_encoder =
6794 intel_attached_encoder(connector);
79e53945 6795 struct drm_crtc *possible_crtc;
4ef69c7a 6796 struct drm_encoder *encoder = &intel_encoder->base;
79e53945
JB		 6797 struct drm_crtc *crtc = NULL;
6798 struct drm_device *dev = encoder->dev;
94352cf9 6799 struct drm_framebuffer *fb;
79e53945
JB		 6800 int i = -1;
6801
d2dff872
CW		 6802 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6803 connector->base.id, drm_get_connector_name(connector),
6804 encoder->base.id, drm_get_encoder_name(encoder));
6805
79e53945
JB		 6806 /*
6807 * Algorithm gets a little messy:
7a5e4805 6808 *
79e53945
JB		 6809 * - if the connector already has an assigned crtc, use it (but make
6810 * sure it's on first)
7a5e4805 6811 *
79e53945
JB		 6812 * - try to find the first unused crtc that can drive this connector,
6813 * and use that if we find one
79e53945
JB		 6814 */
6815
6816 /* See if we already have a CRTC for this connector */
6817 if (encoder->crtc) {
6818 crtc = encoder->crtc;
8261b191 6819
7b24056b
DV		 6820 mutex_lock(&crtc->mutex);
6821
24218aac 6822 old->dpms_mode = connector->dpms;
8261b191
CW		 6823 old->load_detect_temp = false;
6824
6825 /* Make sure the crtc and connector are running */
24218aac
DV		 6826 if (connector->dpms != DRM_MODE_DPMS_ON)
6827 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
8261b191 6828
7173188d 6829 return true;
79e53945
JB		 6830 }
6831
6832 /* Find an unused one (if possible) */
6833 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
6834 i++;
6835 if (!(encoder->possible_crtcs & (1 << i)))
6836 continue;
6837 if (!possible_crtc->enabled) {
6838 crtc = possible_crtc;
6839 break;
6840 }
79e53945
JB		 6841 }
6842
6843 /*
6844 * If we didn't find an unused CRTC, don't use any.
6845 */
6846 if (!crtc) {
7173188d
CW		 6847 DRM_DEBUG_KMS("no pipe available for load-detect\n");
6848 return false;
79e53945
JB		 6849 }
6850
7b24056b 6851 mutex_lock(&crtc->mutex);
fc303101
DV		 6852 intel_encoder->new_crtc = to_intel_crtc(crtc);
6853 to_intel_connector(connector)->new_encoder = intel_encoder;
79e53945
JB		 6854
6855 intel_crtc = to_intel_crtc(crtc);
24218aac 6856 old->dpms_mode = connector->dpms;
8261b191 6857 old->load_detect_temp = true;
d2dff872 6858 old->release_fb = NULL;
79e53945 6859
6492711d
CW		 6860 if (!mode)
6861 mode = &load_detect_mode;
79e53945 6862
d2dff872
CW		 6863 /* We need a framebuffer large enough to accommodate all accesses
6864 * that the plane may generate whilst we perform load detection.
6865 * We can not rely on the fbcon either being present (we get called
6866 * during its initialisation to detect all boot displays, or it may
6867 * not even exist) or that it is large enough to satisfy the
6868 * requested mode.
6869 */
94352cf9
DV		 6870 fb = mode_fits_in_fbdev(dev, mode);
6871 if (fb == NULL) {
d2dff872 6872 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
94352cf9
DV		 6873 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
6874 old->release_fb = fb;
d2dff872
CW		 6875 } else
6876 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
94352cf9 6877 if (IS_ERR(fb)) {
d2dff872 6878 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
7b24056b 6879 mutex_unlock(&crtc->mutex);
0e8b3d3e 6880 return false;
79e53945 6881 }
79e53945 6882
c0c36b94 6883 if (intel_set_mode(crtc, mode, 0, 0, fb)) {
6492711d 6884 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
d2dff872
CW		 6885 if (old->release_fb)
6886 old->release_fb->funcs->destroy(old->release_fb);
7b24056b 6887 mutex_unlock(&crtc->mutex);
0e8b3d3e 6888 return false;
79e53945 6889 }
7173188d 6890
79e53945 6891 /* let the connector get through one full cycle before testing */
9d0498a2 6892 intel_wait_for_vblank(dev, intel_crtc->pipe);
7173188d 6893 return true;
79e53945
JB		 6894}
6895
d2434ab7 6896void intel_release_load_detect_pipe(struct drm_connector *connector,
8261b191 6897 struct intel_load_detect_pipe *old)
79e53945 6898{
d2434ab7
DV		 6899 struct intel_encoder *intel_encoder =
6900 intel_attached_encoder(connector);
4ef69c7a 6901 struct drm_encoder *encoder = &intel_encoder->base;
7b24056b 6902 struct drm_crtc *crtc = encoder->crtc;
79e53945 6903
d2dff872
CW		 6904 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6905 connector->base.id, drm_get_connector_name(connector),
6906 encoder->base.id, drm_get_encoder_name(encoder));
6907
8261b191 6908 if (old->load_detect_temp) {
fc303101
DV		 6909 to_intel_connector(connector)->new_encoder = NULL;
6910 intel_encoder->new_crtc = NULL;
6911 intel_set_mode(crtc, NULL, 0, 0, NULL);
d2dff872 6912
36206361
DV		 6913 if (old->release_fb) {
6914 drm_framebuffer_unregister_private(old->release_fb);
6915 drm_framebuffer_unreference(old->release_fb);
6916 }
d2dff872 6917
67c96400 6918 mutex_unlock(&crtc->mutex);
0622a53c 6919 return;
79e53945
JB		 6920 }
6921
c751ce4f 6922 /* Switch crtc and encoder back off if necessary */
24218aac
DV		 6923 if (old->dpms_mode != DRM_MODE_DPMS_ON)
6924 connector->funcs->dpms(connector, old->dpms_mode);
7b24056b
DV		 6925
6926 mutex_unlock(&crtc->mutex);
79e53945
JB		 6927}
6928
6929/* Returns the clock of the currently programmed mode of the given pipe. */
6930static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
6931{
6932 struct drm_i915_private *dev_priv = dev->dev_private;
6933 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6934 int pipe = intel_crtc->pipe;
548f245b 6935 u32 dpll = I915_READ(DPLL(pipe));
79e53945
JB		 6936 u32 fp;
6937 intel_clock_t clock;
6938
6939 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
39adb7a5 6940 fp = I915_READ(FP0(pipe));
79e53945 6941 else
39adb7a5 6942 fp = I915_READ(FP1(pipe));
79e53945
JB		 6943
6944 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
f2b115e6
AJ		 6945 if (IS_PINEVIEW(dev)) {
6946 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
6947 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
2177832f
SL		 6948 } else {
6949 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
6950 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
6951 }
6952
a6c45cf0 6953 if (!IS_GEN2(dev)) {
f2b115e6
AJ		 6954 if (IS_PINEVIEW(dev))
6955 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
6956 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
2177832f
SL		 6957 else
6958 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
79e53945
JB		 6959 DPLL_FPA01_P1_POST_DIV_SHIFT);
6960
6961 switch (dpll & DPLL_MODE_MASK) {
6962 case DPLLB_MODE_DAC_SERIAL:
6963 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
6964 5 : 10;
6965 break;
6966 case DPLLB_MODE_LVDS:
6967 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
6968 7 : 14;
6969 break;
6970 default:
28c97730 6971 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
79e53945
JB		 6972 "mode\n", (int)(dpll & DPLL_MODE_MASK));
6973 return 0;
6974 }
6975
6976 /* XXX: Handle the 100Mhz refclk */
2177832f 6977 intel_clock(dev, 96000, &clock);
79e53945
JB		 6978 } else {
6979 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
6980
6981 if (is_lvds) {
6982 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
6983 DPLL_FPA01_P1_POST_DIV_SHIFT);
6984 clock.p2 = 14;
6985
6986 if ((dpll & PLL_REF_INPUT_MASK) ==
6987 PLLB_REF_INPUT_SPREADSPECTRUMIN) {
6988 /* XXX: might not be 66MHz */
2177832f 6989 intel_clock(dev, 66000, &clock);
79e53945 6990 } else
2177832f 6991 intel_clock(dev, 48000, &clock);
79e53945
JB		 6992 } else {
6993 if (dpll & PLL_P1_DIVIDE_BY_TWO)
6994 clock.p1 = 2;
6995 else {
6996 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
6997 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
6998 }
6999 if (dpll & PLL_P2_DIVIDE_BY_4)
7000 clock.p2 = 4;
7001 else
7002 clock.p2 = 2;
7003
2177832f 7004 intel_clock(dev, 48000, &clock);
79e53945
JB		 7005 }
7006 }
7007
7008 /* XXX: It would be nice to validate the clocks, but we can't reuse
7009 * i830PllIsValid() because it relies on the xf86_config connector
7010 * configuration being accurate, which it isn't necessarily.
7011 */
7012
7013 return clock.dot;
7014}
7015
7016/** Returns the currently programmed mode of the given pipe. */
7017struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
7018 struct drm_crtc *crtc)
7019{
548f245b 7020 struct drm_i915_private *dev_priv = dev->dev_private;
79e53945 7021 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3b117c8f 7022 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
79e53945 7023 struct drm_display_mode *mode;
fe2b8f9d
PZ		 7024 int htot = I915_READ(HTOTAL(cpu_transcoder));
7025 int hsync = I915_READ(HSYNC(cpu_transcoder));
7026 int vtot = I915_READ(VTOTAL(cpu_transcoder));
7027 int vsync = I915_READ(VSYNC(cpu_transcoder));
79e53945
JB		 7028
7029 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
7030 if (!mode)
7031 return NULL;
7032
7033 mode->clock = intel_crtc_clock_get(dev, crtc);
7034 mode->hdisplay = (htot & 0xffff) + 1;
7035 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
7036 mode->hsync_start = (hsync & 0xffff) + 1;
7037 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
7038 mode->vdisplay = (vtot & 0xffff) + 1;
7039 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
7040 mode->vsync_start = (vsync & 0xffff) + 1;
7041 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
7042
7043 drm_mode_set_name(mode);
79e53945
JB		 7044
7045 return mode;
7046}
7047
3dec0095 7048static void intel_increase_pllclock(struct drm_crtc *crtc)
652c393a
JB		 7049{
7050 struct drm_device *dev = crtc->dev;
7051 drm_i915_private_t *dev_priv = dev->dev_private;
7052 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7053 int pipe = intel_crtc->pipe;
dbdc6479
JB		 7054 int dpll_reg = DPLL(pipe);
7055 int dpll;
652c393a 7056
bad720ff 7057 if (HAS_PCH_SPLIT(dev))
652c393a
JB		 7058 return;
7059
7060 if (!dev_priv->lvds_downclock_avail)
7061 return;
7062
dbdc6479 7063 dpll = I915_READ(dpll_reg);
652c393a 7064 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
44d98a61 7065 DRM_DEBUG_DRIVER("upclocking LVDS\n");
652c393a 7066
8ac5a6d5 7067 assert_panel_unlocked(dev_priv, pipe);
652c393a
JB		 7068
7069 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
7070 I915_WRITE(dpll_reg, dpll);
9d0498a2 7071 intel_wait_for_vblank(dev, pipe);
dbdc6479 7072
652c393a
JB		 7073 dpll = I915_READ(dpll_reg);
7074 if (dpll & DISPLAY_RATE_SELECT_FPA1)
44d98a61 7075 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
652c393a 7076 }
652c393a
JB		 7077}
7078
7079static void intel_decrease_pllclock(struct drm_crtc *crtc)
7080{
7081 struct drm_device *dev = crtc->dev;
7082 drm_i915_private_t *dev_priv = dev->dev_private;
7083 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
652c393a 7084
bad720ff 7085 if (HAS_PCH_SPLIT(dev))
652c393a
JB		 7086 return;
7087
7088 if (!dev_priv->lvds_downclock_avail)
7089 return;
7090
7091 /*
7092 * Since this is called by a timer, we should never get here in
7093 * the manual case.
7094 */
7095 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
dc257cf1
DV		 7096 int pipe = intel_crtc->pipe;
7097 int dpll_reg = DPLL(pipe);
7098 int dpll;
f6e5b160 7099
44d98a61 7100 DRM_DEBUG_DRIVER("downclocking LVDS\n");
652c393a 7101
8ac5a6d5 7102 assert_panel_unlocked(dev_priv, pipe);
652c393a 7103
dc257cf1 7104 dpll = I915_READ(dpll_reg);
652c393a
JB		 7105 dpll |= DISPLAY_RATE_SELECT_FPA1;
7106 I915_WRITE(dpll_reg, dpll);
9d0498a2 7107 intel_wait_for_vblank(dev, pipe);
652c393a
JB		 7108 dpll = I915_READ(dpll_reg);
7109 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
44d98a61 7110 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
652c393a
JB		 7111 }
7112
7113}
7114
f047e395
CW		 7115void intel_mark_busy(struct drm_device *dev)
7116{
f047e395
CW		 7117 i915_update_gfx_val(dev->dev_private);
7118}
7119
7120void intel_mark_idle(struct drm_device *dev)
652c393a 7121{
652c393a 7122 struct drm_crtc *crtc;
652c393a
JB		 7123
7124 if (!i915_powersave)
7125 return;
7126
652c393a 7127 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
652c393a
JB		 7128 if (!crtc->fb)
7129 continue;
7130
725a5b54 7131 intel_decrease_pllclock(crtc);
652c393a 7132 }
652c393a
JB		 7133}
7134
725a5b54 7135void intel_mark_fb_busy(struct drm_i915_gem_object *obj)
652c393a 7136{
f047e395
CW		 7137 struct drm_device *dev = obj->base.dev;
7138 struct drm_crtc *crtc;
652c393a 7139
f047e395 7140 if (!i915_powersave)
acb87dfb
CW		 7141 return;
7142
652c393a
JB		 7143 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7144 if (!crtc->fb)
7145 continue;
7146
f047e395 7147 if (to_intel_framebuffer(crtc->fb)->obj == obj)
725a5b54 7148 intel_increase_pllclock(crtc);
652c393a
JB		 7149 }
7150}
7151
79e53945
JB		 7152static void intel_crtc_destroy(struct drm_crtc *crtc)
7153{
7154 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
67e77c5a
DV		 7155 struct drm_device *dev = crtc->dev;
7156 struct intel_unpin_work *work;
7157 unsigned long flags;
7158
7159 spin_lock_irqsave(&dev->event_lock, flags);
7160 work = intel_crtc->unpin_work;
7161 intel_crtc->unpin_work = NULL;
7162 spin_unlock_irqrestore(&dev->event_lock, flags);
7163
7164 if (work) {
7165 cancel_work_sync(&work->work);
7166 kfree(work);
7167 }
79e53945
JB		 7168
7169 drm_crtc_cleanup(crtc);
67e77c5a 7170
79e53945
JB		 7171 kfree(intel_crtc);
7172}
7173
6b95a207
KH		 7174static void intel_unpin_work_fn(struct work_struct *__work)
7175{
7176 struct intel_unpin_work *work =
7177 container_of(__work, struct intel_unpin_work, work);
b4a98e57 7178 struct drm_device *dev = work->crtc->dev;
6b95a207 7179
b4a98e57 7180 mutex_lock(&dev->struct_mutex);
1690e1eb 7181 intel_unpin_fb_obj(work->old_fb_obj);
05394f39
CW		 7182 drm_gem_object_unreference(&work->pending_flip_obj->base);
7183 drm_gem_object_unreference(&work->old_fb_obj->base);
d9e86c0e 7184
b4a98e57
CW		 7185 intel_update_fbc(dev);
7186 mutex_unlock(&dev->struct_mutex);
7187
7188 BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
7189 atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
7190
6b95a207
KH		 7191 kfree(work);
7192}
7193
1afe3e9d 7194static void do_intel_finish_page_flip(struct drm_device *dev,
49b14a5c 7195 struct drm_crtc *crtc)
6b95a207
KH		 7196{
7197 drm_i915_private_t *dev_priv = dev->dev_private;
6b95a207
KH		 7198 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7199 struct intel_unpin_work *work;
6b95a207
KH		 7200 unsigned long flags;
7201
7202 /* Ignore early vblank irqs */
7203 if (intel_crtc == NULL)
7204 return;
7205
7206 spin_lock_irqsave(&dev->event_lock, flags);
7207 work = intel_crtc->unpin_work;
e7d841ca
CW		 7208
7209 /* Ensure we don't miss a work->pending update ... */
7210 smp_rmb();
7211
7212 if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
6b95a207
KH		 7213 spin_unlock_irqrestore(&dev->event_lock, flags);
7214 return;
7215 }
7216
e7d841ca
CW		 7217 /* and that the unpin work is consistent wrt ->pending. */
7218 smp_rmb();
7219
6b95a207 7220 intel_crtc->unpin_work = NULL;
6b95a207 7221
45a066eb
RC		 7222 if (work->event)
7223 drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
6b95a207 7224
0af7e4df
MK		 7225 drm_vblank_put(dev, intel_crtc->pipe);
7226
6b95a207
KH		 7227 spin_unlock_irqrestore(&dev->event_lock, flags);
7228
2c10d571 7229 wake_up_all(&dev_priv->pending_flip_queue);
b4a98e57
CW		 7230
7231 queue_work(dev_priv->wq, &work->work);
e5510fac
JB		 7232
7233 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
6b95a207
KH		 7234}
7235
1afe3e9d
JB		 7236void intel_finish_page_flip(struct drm_device *dev, int pipe)
7237{
7238 drm_i915_private_t *dev_priv = dev->dev_private;
7239 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
7240
49b14a5c 7241 do_intel_finish_page_flip(dev, crtc);
1afe3e9d
JB		 7242}
7243
7244void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
7245{
7246 drm_i915_private_t *dev_priv = dev->dev_private;
7247 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
7248
49b14a5c 7249 do_intel_finish_page_flip(dev, crtc);
1afe3e9d
JB		 7250}
7251
6b95a207
KH		 7252void intel_prepare_page_flip(struct drm_device *dev, int plane)
7253{
7254 drm_i915_private_t *dev_priv = dev->dev_private;
7255 struct intel_crtc *intel_crtc =
7256 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
7257 unsigned long flags;
7258
e7d841ca
CW		 7259 /* NB: An MMIO update of the plane base pointer will also
7260 * generate a page-flip completion irq, i.e. every modeset
7261 * is also accompanied by a spurious intel_prepare_page_flip().
7262 */
6b95a207 7263 spin_lock_irqsave(&dev->event_lock, flags);
e7d841ca
CW		 7264 if (intel_crtc->unpin_work)
7265 atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
6b95a207
KH		 7266 spin_unlock_irqrestore(&dev->event_lock, flags);
7267}
7268
e7d841ca
CW		 7269inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
7270{
7271 /* Ensure that the work item is consistent when activating it ... */
7272 smp_wmb();
7273 atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
7274 /* and that it is marked active as soon as the irq could fire. */
7275 smp_wmb();
7276}
7277
8c9f3aaf
JB		 7278static int intel_gen2_queue_flip(struct drm_device *dev,
7279 struct drm_crtc *crtc,
7280 struct drm_framebuffer *fb,
7281 struct drm_i915_gem_object *obj)
7282{
7283 struct drm_i915_private *dev_priv = dev->dev_private;
7284 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8c9f3aaf 7285 u32 flip_mask;
6d90c952 7286 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7287 int ret;
7288
6d90c952 7289 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7290 if (ret)
83d4092b 7291 goto err;
8c9f3aaf 7292
6d90c952 7293 ret = intel_ring_begin(ring, 6);
8c9f3aaf 7294 if (ret)
83d4092b 7295 goto err_unpin;
8c9f3aaf
JB		 7296
7297 /* Can't queue multiple flips, so wait for the previous
7298 * one to finish before executing the next.
7299 */
7300 if (intel_crtc->plane)
7301 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7302 else
7303 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
6d90c952
DV		 7304 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7305 intel_ring_emit(ring, MI_NOOP);
7306 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7307 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7308 intel_ring_emit(ring, fb->pitches[0]);
e506a0c6 7309 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
6d90c952 7310 intel_ring_emit(ring, 0); /* aux display base address, unused */
e7d841ca
CW		 7311
7312 intel_mark_page_flip_active(intel_crtc);
6d90c952 7313 intel_ring_advance(ring);
83d4092b
CW		 7314 return 0;
7315
7316err_unpin:
7317 intel_unpin_fb_obj(obj);
7318err:
8c9f3aaf
JB		 7319 return ret;
7320}
7321
7322static int intel_gen3_queue_flip(struct drm_device *dev,
7323 struct drm_crtc *crtc,
7324 struct drm_framebuffer *fb,
7325 struct drm_i915_gem_object *obj)
7326{
7327 struct drm_i915_private *dev_priv = dev->dev_private;
7328 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8c9f3aaf 7329 u32 flip_mask;
6d90c952 7330 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7331 int ret;
7332
6d90c952 7333 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7334 if (ret)
83d4092b 7335 goto err;
8c9f3aaf 7336
6d90c952 7337 ret = intel_ring_begin(ring, 6);
8c9f3aaf 7338 if (ret)
83d4092b 7339 goto err_unpin;
8c9f3aaf
JB		 7340
7341 if (intel_crtc->plane)
7342 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7343 else
7344 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
6d90c952
DV		 7345 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7346 intel_ring_emit(ring, MI_NOOP);
7347 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
7348 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7349 intel_ring_emit(ring, fb->pitches[0]);
e506a0c6 7350 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
6d90c952
DV		 7351 intel_ring_emit(ring, MI_NOOP);
7352
e7d841ca 7353 intel_mark_page_flip_active(intel_crtc);
6d90c952 7354 intel_ring_advance(ring);
83d4092b
CW		 7355 return 0;
7356
7357err_unpin:
7358 intel_unpin_fb_obj(obj);
7359err:
8c9f3aaf
JB		 7360 return ret;
7361}
7362
7363static int intel_gen4_queue_flip(struct drm_device *dev,
7364 struct drm_crtc *crtc,
7365 struct drm_framebuffer *fb,
7366 struct drm_i915_gem_object *obj)
7367{
7368 struct drm_i915_private *dev_priv = dev->dev_private;
7369 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7370 uint32_t pf, pipesrc;
6d90c952 7371 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7372 int ret;
7373
6d90c952 7374 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7375 if (ret)
83d4092b 7376 goto err;
8c9f3aaf 7377
6d90c952 7378 ret = intel_ring_begin(ring, 4);
8c9f3aaf 7379 if (ret)
83d4092b 7380 goto err_unpin;
8c9f3aaf
JB		 7381
7382 /* i965+ uses the linear or tiled offsets from the
7383 * Display Registers (which do not change across a page-flip)
7384 * so we need only reprogram the base address.
7385 */
6d90c952
DV		 7386 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7387 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7388 intel_ring_emit(ring, fb->pitches[0]);
c2c75131
DV		 7389 intel_ring_emit(ring,
7390 (obj->gtt_offset + intel_crtc->dspaddr_offset) |
7391 obj->tiling_mode);
8c9f3aaf
JB		 7392
7393 /* XXX Enabling the panel-fitter across page-flip is so far
7394 * untested on non-native modes, so ignore it for now.
7395 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
7396 */
7397 pf = 0;
7398 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
6d90c952 7399 intel_ring_emit(ring, pf | pipesrc);
e7d841ca
CW		 7400
7401 intel_mark_page_flip_active(intel_crtc);
6d90c952 7402 intel_ring_advance(ring);
83d4092b
CW		 7403 return 0;
7404
7405err_unpin:
7406 intel_unpin_fb_obj(obj);
7407err:
8c9f3aaf
JB		 7408 return ret;
7409}
7410
7411static int intel_gen6_queue_flip(struct drm_device *dev,
7412 struct drm_crtc *crtc,
7413 struct drm_framebuffer *fb,
7414 struct drm_i915_gem_object *obj)
7415{
7416 struct drm_i915_private *dev_priv = dev->dev_private;
7417 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6d90c952 7418 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8c9f3aaf
JB		 7419 uint32_t pf, pipesrc;
7420 int ret;
7421
6d90c952 7422 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8c9f3aaf 7423 if (ret)
83d4092b 7424 goto err;
8c9f3aaf 7425
6d90c952 7426 ret = intel_ring_begin(ring, 4);
8c9f3aaf 7427 if (ret)
83d4092b 7428 goto err_unpin;
8c9f3aaf 7429
6d90c952
DV		 7430 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7431 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7432 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
c2c75131 7433 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
8c9f3aaf 7434
dc257cf1
DV		 7435 /* Contrary to the suggestions in the documentation,
7436 * "Enable Panel Fitter" does not seem to be required when page
7437 * flipping with a non-native mode, and worse causes a normal
7438 * modeset to fail.
7439 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
7440 */
7441 pf = 0;
8c9f3aaf 7442 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
6d90c952 7443 intel_ring_emit(ring, pf | pipesrc);
e7d841ca
CW		 7444
7445 intel_mark_page_flip_active(intel_crtc);
6d90c952 7446 intel_ring_advance(ring);
83d4092b
CW		 7447 return 0;
7448
7449err_unpin:
7450 intel_unpin_fb_obj(obj);
7451err:
8c9f3aaf
JB		 7452 return ret;
7453}
7454
7c9017e5
JB		 7455/*
7456 * On gen7 we currently use the blit ring because (in early silicon at least)
7457 * the render ring doesn't give us interrpts for page flip completion, which
7458 * means clients will hang after the first flip is queued. Fortunately the
7459 * blit ring generates interrupts properly, so use it instead.
7460 */
7461static int intel_gen7_queue_flip(struct drm_device *dev,
7462 struct drm_crtc *crtc,
7463 struct drm_framebuffer *fb,
7464 struct drm_i915_gem_object *obj)
7465{
7466 struct drm_i915_private *dev_priv = dev->dev_private;
7467 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7468 struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
cb05d8de 7469 uint32_t plane_bit = 0;
7c9017e5
JB		 7470 int ret;
7471
7472 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7473 if (ret)
83d4092b 7474 goto err;
7c9017e5 7475
cb05d8de
DV		 7476 switch(intel_crtc->plane) {
7477 case PLANE_A:
7478 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
7479 break;
7480 case PLANE_B:
7481 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
7482 break;
7483 case PLANE_C:
7484 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
7485 break;
7486 default:
7487 WARN_ONCE(1, "unknown plane in flip command\n");
7488 ret = -ENODEV;
ab3951eb 7489 goto err_unpin;
cb05d8de
DV		 7490 }
7491
7c9017e5
JB		 7492 ret = intel_ring_begin(ring, 4);
7493 if (ret)
83d4092b 7494 goto err_unpin;
7c9017e5 7495
cb05d8de 7496 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
01f2c773 7497 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
c2c75131 7498 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7c9017e5 7499 intel_ring_emit(ring, (MI_NOOP));
e7d841ca
CW		 7500
7501 intel_mark_page_flip_active(intel_crtc);
7c9017e5 7502 intel_ring_advance(ring);
83d4092b
CW		 7503 return 0;
7504
7505err_unpin:
7506 intel_unpin_fb_obj(obj);
7507err:
7c9017e5
JB		 7508 return ret;
7509}
7510
8c9f3aaf
JB		 7511static int intel_default_queue_flip(struct drm_device *dev,
7512 struct drm_crtc *crtc,
7513 struct drm_framebuffer *fb,
7514 struct drm_i915_gem_object *obj)
7515{
7516 return -ENODEV;
7517}
7518
6b95a207
KH		 7519static int intel_crtc_page_flip(struct drm_crtc *crtc,
7520 struct drm_framebuffer *fb,
7521 struct drm_pending_vblank_event *event)
7522{
7523 struct drm_device *dev = crtc->dev;
7524 struct drm_i915_private *dev_priv = dev->dev_private;
4a35f83b
VS		 7525 struct drm_framebuffer *old_fb = crtc->fb;
7526 struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
6b95a207
KH		 7527 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7528 struct intel_unpin_work *work;
8c9f3aaf 7529 unsigned long flags;
52e68630 7530 int ret;
6b95a207 7531
e6a595d2
VS		 7532 /* Can't change pixel format via MI display flips. */
7533 if (fb->pixel_format != crtc->fb->pixel_format)
7534 return -EINVAL;
7535
7536 /*
7537 * TILEOFF/LINOFF registers can't be changed via MI display flips.
7538 * Note that pitch changes could also affect these register.
7539 */
7540 if (INTEL_INFO(dev)->gen > 3 &&
7541 (fb->offsets[0] != crtc->fb->offsets[0] ||
7542 fb->pitches[0] != crtc->fb->pitches[0]))
7543 return -EINVAL;
7544
6b95a207
KH		 7545 work = kzalloc(sizeof *work, GFP_KERNEL);
7546 if (work == NULL)
7547 return -ENOMEM;
7548
6b95a207 7549 work->event = event;
b4a98e57 7550 work->crtc = crtc;
4a35f83b 7551 work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
6b95a207
KH		 7552 INIT_WORK(&work->work, intel_unpin_work_fn);
7553
7317c75e
JB		 7554 ret = drm_vblank_get(dev, intel_crtc->pipe);
7555 if (ret)
7556 goto free_work;
7557
6b95a207
KH		 7558 /* We borrow the event spin lock for protecting unpin_work */
7559 spin_lock_irqsave(&dev->event_lock, flags);
7560 if (intel_crtc->unpin_work) {
7561 spin_unlock_irqrestore(&dev->event_lock, flags);
7562 kfree(work);
7317c75e 7563 drm_vblank_put(dev, intel_crtc->pipe);
468f0b44
CW		 7564
7565 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
6b95a207
KH		 7566 return -EBUSY;
7567 }
7568 intel_crtc->unpin_work = work;
7569 spin_unlock_irqrestore(&dev->event_lock, flags);
7570
b4a98e57
CW		 7571 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
7572 flush_workqueue(dev_priv->wq);
7573
79158103
CW		 7574 ret = i915_mutex_lock_interruptible(dev);
7575 if (ret)
7576 goto cleanup;
6b95a207 7577
75dfca80 7578 /* Reference the objects for the scheduled work. */
05394f39
CW		 7579 drm_gem_object_reference(&work->old_fb_obj->base);
7580 drm_gem_object_reference(&obj->base);
6b95a207
KH		 7581
7582 crtc->fb = fb;
96b099fd 7583
e1f99ce6 7584 work->pending_flip_obj = obj;
e1f99ce6 7585
4e5359cd
SF		 7586 work->enable_stall_check = true;
7587
b4a98e57 7588 atomic_inc(&intel_crtc->unpin_work_count);
10d83730 7589 intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
e1f99ce6 7590
8c9f3aaf
JB		 7591 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj);
7592 if (ret)
7593 goto cleanup_pending;
6b95a207 7594
7782de3b 7595 intel_disable_fbc(dev);
f047e395 7596 intel_mark_fb_busy(obj);
6b95a207
KH		 7597 mutex_unlock(&dev->struct_mutex);
7598
e5510fac
JB		 7599 trace_i915_flip_request(intel_crtc->plane, obj);
7600
6b95a207 7601 return 0;
96b099fd 7602
8c9f3aaf 7603cleanup_pending:
b4a98e57 7604 atomic_dec(&intel_crtc->unpin_work_count);
4a35f83b 7605 crtc->fb = old_fb;
05394f39
CW		 7606 drm_gem_object_unreference(&work->old_fb_obj->base);
7607 drm_gem_object_unreference(&obj->base);
96b099fd
CW		 7608 mutex_unlock(&dev->struct_mutex);
7609
79158103 7610cleanup:
96b099fd
CW		 7611 spin_lock_irqsave(&dev->event_lock, flags);
7612 intel_crtc->unpin_work = NULL;
7613 spin_unlock_irqrestore(&dev->event_lock, flags);
7614
7317c75e
JB		 7615 drm_vblank_put(dev, intel_crtc->pipe);
7616free_work:
96b099fd
CW		 7617 kfree(work);
7618
7619 return ret;
6b95a207
KH		 7620}
7621
f6e5b160 7622static struct drm_crtc_helper_funcs intel_helper_funcs = {
f6e5b160
CW		 7623 .mode_set_base_atomic = intel_pipe_set_base_atomic,
7624 .load_lut = intel_crtc_load_lut,
f6e5b160
CW		 7625};
7626
6ed0f796 7627bool intel_encoder_check_is_cloned(struct intel_encoder *encoder)
47f1c6c9 7628{
6ed0f796
DV		 7629 struct intel_encoder *other_encoder;
7630 struct drm_crtc *crtc = &encoder->new_crtc->base;
47f1c6c9 7631
6ed0f796
DV		 7632 if (WARN_ON(!crtc))
7633 return false;
7634
7635 list_for_each_entry(other_encoder,
7636 &crtc->dev->mode_config.encoder_list,
7637 base.head) {
7638
7639 if (&other_encoder->new_crtc->base != crtc ||
7640 encoder == other_encoder)
7641 continue;
7642 else
7643 return true;
f47166d2
CW		 7644 }
7645
6ed0f796
DV		 7646 return false;
7647}
47f1c6c9 7648
50f56119
DV		 7649static bool intel_encoder_crtc_ok(struct drm_encoder *encoder,
7650 struct drm_crtc *crtc)
7651{
7652 struct drm_device *dev;
7653 struct drm_crtc *tmp;
7654 int crtc_mask = 1;
47f1c6c9 7655
50f56119 7656 WARN(!crtc, "checking null crtc?\n");
47f1c6c9 7657
50f56119 7658 dev = crtc->dev;
47f1c6c9 7659
50f56119
DV		 7660 list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
7661 if (tmp == crtc)
7662 break;
7663 crtc_mask <<= 1;
7664 }
47f1c6c9 7665
50f56119
DV		 7666 if (encoder->possible_crtcs & crtc_mask)
7667 return true;
7668 return false;
47f1c6c9 7669}
79e53945 7670
9a935856
DV		 7671/**
7672 * intel_modeset_update_staged_output_state
7673 *
7674 * Updates the staged output configuration state, e.g. after we've read out the
7675 * current hw state.
7676 */
7677static void intel_modeset_update_staged_output_state(struct drm_device *dev)
f6e5b160 7678{
9a935856
DV		 7679 struct intel_encoder *encoder;
7680 struct intel_connector *connector;
f6e5b160 7681
9a935856
DV		 7682 list_for_each_entry(connector, &dev->mode_config.connector_list,
7683 base.head) {
7684 connector->new_encoder =
7685 to_intel_encoder(connector->base.encoder);
7686 }
f6e5b160 7687
9a935856
DV		 7688 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7689 base.head) {
7690 encoder->new_crtc =
7691 to_intel_crtc(encoder->base.crtc);
7692 }
f6e5b160
CW		 7693}
7694
9a935856
DV		 7695/**
7696 * intel_modeset_commit_output_state
7697 *
7698 * This function copies the stage display pipe configuration to the real one.
7699 */
7700static void intel_modeset_commit_output_state(struct drm_device *dev)
7701{
7702 struct intel_encoder *encoder;
7703 struct intel_connector *connector;
f6e5b160 7704
9a935856
DV		 7705 list_for_each_entry(connector, &dev->mode_config.connector_list,
7706 base.head) {
7707 connector->base.encoder = &connector->new_encoder->base;
7708 }
f6e5b160 7709
9a935856
DV		 7710 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7711 base.head) {
7712 encoder->base.crtc = &encoder->new_crtc->base;
7713 }
7714}
7715
4e53c2e0
DV		 7716static int
7717pipe_config_set_bpp(struct drm_crtc *crtc,
7718 struct drm_framebuffer *fb,
7719 struct intel_crtc_config *pipe_config)
7720{
7721 struct drm_device *dev = crtc->dev;
7722 struct drm_connector *connector;
7723 int bpp;
7724
d42264b1
DV		 7725 switch (fb->pixel_format) {
7726 case DRM_FORMAT_C8:
4e53c2e0
DV		 7727 bpp = 8*3; /* since we go through a colormap */
7728 break;
d42264b1
DV		 7729 case DRM_FORMAT_XRGB1555:
7730 case DRM_FORMAT_ARGB1555:
7731 /* checked in intel_framebuffer_init already */
7732 if (WARN_ON(INTEL_INFO(dev)->gen > 3))
7733 return -EINVAL;
7734 case DRM_FORMAT_RGB565:
4e53c2e0
DV		 7735 bpp = 6*3; /* min is 18bpp */
7736 break;
d42264b1
DV		 7737 case DRM_FORMAT_XBGR8888:
7738 case DRM_FORMAT_ABGR8888:
7739 /* checked in intel_framebuffer_init already */
7740 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
7741 return -EINVAL;
7742 case DRM_FORMAT_XRGB8888:
7743 case DRM_FORMAT_ARGB8888:
4e53c2e0
DV		 7744 bpp = 8*3;
7745 break;
d42264b1
DV		 7746 case DRM_FORMAT_XRGB2101010:
7747 case DRM_FORMAT_ARGB2101010:
7748 case DRM_FORMAT_XBGR2101010:
7749 case DRM_FORMAT_ABGR2101010:
7750 /* checked in intel_framebuffer_init already */
7751 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
baba133a 7752 return -EINVAL;
4e53c2e0
DV		 7753 bpp = 10*3;
7754 break;
baba133a 7755 /* TODO: gen4+ supports 16 bpc floating point, too. */
4e53c2e0
DV		 7756 default:
7757 DRM_DEBUG_KMS("unsupported depth\n");
7758 return -EINVAL;
7759 }
7760
4e53c2e0
DV		 7761 pipe_config->pipe_bpp = bpp;
7762
7763 /* Clamp display bpp to EDID value */
7764 list_for_each_entry(connector, &dev->mode_config.connector_list,
7765 head) {
7766 if (connector->encoder && connector->encoder->crtc != crtc)
7767 continue;
7768
7769 /* Don't use an invalid EDID bpc value */
7770 if (connector->display_info.bpc &&
7771 connector->display_info.bpc * 3 < bpp) {
7772 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
7773 bpp, connector->display_info.bpc*3);
7774 pipe_config->pipe_bpp = connector->display_info.bpc*3;
7775 }
996a2239
DV		 7776
7777 /* Clamp bpp to 8 on screens without EDID 1.4 */
7778 if (connector->display_info.bpc == 0 && bpp > 24) {
7779 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
7780 bpp);
7781 pipe_config->pipe_bpp = 24;
7782 }
4e53c2e0
DV		 7783 }
7784
7785 return bpp;
7786}
7787
b8cecdf5
DV		 7788static struct intel_crtc_config *
7789intel_modeset_pipe_config(struct drm_crtc *crtc,
4e53c2e0 7790 struct drm_framebuffer *fb,
b8cecdf5 7791 struct drm_display_mode *mode)
ee7b9f93 7792{
7758a113 7793 struct drm_device *dev = crtc->dev;
7758a113
DV		 7794 struct drm_encoder_helper_funcs *encoder_funcs;
7795 struct intel_encoder *encoder;
b8cecdf5 7796 struct intel_crtc_config *pipe_config;
e29c22c0
DV		 7797 int plane_bpp, ret = -EINVAL;
7798 bool retry = true;
ee7b9f93 7799
b8cecdf5
DV		 7800 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
7801 if (!pipe_config)
7758a113
DV		 7802 return ERR_PTR(-ENOMEM);
7803
b8cecdf5
DV		 7804 drm_mode_copy(&pipe_config->adjusted_mode, mode);
7805 drm_mode_copy(&pipe_config->requested_mode, mode);
7806
4e53c2e0
DV		 7807 plane_bpp = pipe_config_set_bpp(crtc, fb, pipe_config);
7808 if (plane_bpp < 0)
7809 goto fail;
7810
e29c22c0 7811encoder_retry:
7758a113
DV		 7812 /* Pass our mode to the connectors and the CRTC to give them a chance to
7813 * adjust it according to limitations or connector properties, and also
7814 * a chance to reject the mode entirely.
47f1c6c9 7815 */
7758a113
DV		 7816 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7817 base.head) {
47f1c6c9 7818
7758a113
DV		 7819 if (&encoder->new_crtc->base != crtc)
7820 continue;
7ae89233
DV		 7821
7822 if (encoder->compute_config) {
7823 if (!(encoder->compute_config(encoder, pipe_config))) {
7824 DRM_DEBUG_KMS("Encoder config failure\n");
7825 goto fail;
7826 }
7827
7828 continue;
7829 }
7830
7758a113 7831 encoder_funcs = encoder->base.helper_private;
b8cecdf5
DV		 7832 if (!(encoder_funcs->mode_fixup(&encoder->base,
7833 &pipe_config->requested_mode,
7834 &pipe_config->adjusted_mode))) {
7758a113
DV		 7835 DRM_DEBUG_KMS("Encoder fixup failed\n");
7836 goto fail;
7837 }
ee7b9f93 7838 }
47f1c6c9 7839
e29c22c0
DV		 7840 ret = intel_crtc_compute_config(crtc, pipe_config);
7841 if (ret < 0) {
7758a113
DV		 7842 DRM_DEBUG_KMS("CRTC fixup failed\n");
7843 goto fail;
ee7b9f93 7844 }
e29c22c0
DV		 7845
7846 if (ret == RETRY) {
7847 if (WARN(!retry, "loop in pipe configuration computation\n")) {
7848 ret = -EINVAL;
7849 goto fail;
7850 }
7851
7852 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
7853 retry = false;
7854 goto encoder_retry;
7855 }
7856
7758a113 7857 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
47f1c6c9 7858
4e53c2e0
DV		 7859 pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
7860 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
7861 plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
7862
b8cecdf5 7863 return pipe_config;
7758a113 7864fail:
b8cecdf5 7865 kfree(pipe_config);
e29c22c0 7866 return ERR_PTR(ret);
ee7b9f93 7867}
47f1c6c9 7868
e2e1ed41
DV		 7869/* Computes which crtcs are affected and sets the relevant bits in the mask. For
7870 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
7871static void
7872intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
7873 unsigned *prepare_pipes, unsigned *disable_pipes)
79e53945
JB		 7874{
7875 struct intel_crtc *intel_crtc;
e2e1ed41
DV		 7876 struct drm_device *dev = crtc->dev;
7877 struct intel_encoder *encoder;
7878 struct intel_connector *connector;
7879 struct drm_crtc *tmp_crtc;
79e53945 7880
e2e1ed41 7881 *disable_pipes = *modeset_pipes = *prepare_pipes = 0;
79e53945 7882
e2e1ed41
DV		 7883 /* Check which crtcs have changed outputs connected to them, these need
7884 * to be part of the prepare_pipes mask. We don't (yet) support global
7885 * modeset across multiple crtcs, so modeset_pipes will only have one
7886 * bit set at most. */
7887 list_for_each_entry(connector, &dev->mode_config.connector_list,
7888 base.head) {
7889 if (connector->base.encoder == &connector->new_encoder->base)
7890 continue;
79e53945 7891
e2e1ed41
DV		 7892 if (connector->base.encoder) {
7893 tmp_crtc = connector->base.encoder->crtc;
7894
7895 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
7896 }
7897
7898 if (connector->new_encoder)
7899 *prepare_pipes |=
7900 1 << connector->new_encoder->new_crtc->pipe;
79e53945
JB		 7901 }
7902
e2e1ed41
DV		 7903 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7904 base.head) {
7905 if (encoder->base.crtc == &encoder->new_crtc->base)
7906 continue;
7907
7908 if (encoder->base.crtc) {
7909 tmp_crtc = encoder->base.crtc;
7910
7911 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
7912 }
7913
7914 if (encoder->new_crtc)
7915 *prepare_pipes |= 1 << encoder->new_crtc->pipe;
80824003
JB		 7916 }
7917
e2e1ed41
DV		 7918 /* Check for any pipes that will be fully disabled ... */
7919 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
7920 base.head) {
7921 bool used = false;
22fd0fab 7922
e2e1ed41
DV		 7923 /* Don't try to disable disabled crtcs. */
7924 if (!intel_crtc->base.enabled)
7925 continue;
7e7d76c3 7926
e2e1ed41
DV		 7927 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7928 base.head) {
7929 if (encoder->new_crtc == intel_crtc)
7930 used = true;
7931 }
7932
7933 if (!used)
7934 *disable_pipes |= 1 << intel_crtc->pipe;
7e7d76c3
JB		 7935 }
7936
e2e1ed41
DV		 7937
7938 /* set_mode is also used to update properties on life display pipes. */
7939 intel_crtc = to_intel_crtc(crtc);
7940 if (crtc->enabled)
7941 *prepare_pipes |= 1 << intel_crtc->pipe;
7942
b6c5164d
DV		 7943 /*
7944 * For simplicity do a full modeset on any pipe where the output routing
7945 * changed. We could be more clever, but that would require us to be
7946 * more careful with calling the relevant encoder->mode_set functions.
7947 */
e2e1ed41
DV		 7948 if (*prepare_pipes)
7949 *modeset_pipes = *prepare_pipes;
7950
7951 /* ... and mask these out. */
7952 *modeset_pipes &= ~(*disable_pipes);
7953 *prepare_pipes &= ~(*disable_pipes);
b6c5164d
DV		 7954
7955 /*
7956 * HACK: We don't (yet) fully support global modesets. intel_set_config
7957 * obies this rule, but the modeset restore mode of
7958 * intel_modeset_setup_hw_state does not.
7959 */
7960 *modeset_pipes &= 1 << intel_crtc->pipe;
7961 *prepare_pipes &= 1 << intel_crtc->pipe;
e3641d3f
DV		 7962
7963 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
7964 *modeset_pipes, *prepare_pipes, *disable_pipes);
47f1c6c9 7965}
79e53945 7966
ea9d758d 7967static bool intel_crtc_in_use(struct drm_crtc *crtc)
f6e5b160 7968{
ea9d758d 7969 struct drm_encoder *encoder;
f6e5b160 7970 struct drm_device *dev = crtc->dev;
f6e5b160 7971
ea9d758d
DV		 7972 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
7973 if (encoder->crtc == crtc)
7974 return true;
7975
7976 return false;
7977}
7978
7979static void
7980intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
7981{
7982 struct intel_encoder *intel_encoder;
7983 struct intel_crtc *intel_crtc;
7984 struct drm_connector *connector;
7985
7986 list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
7987 base.head) {
7988 if (!intel_encoder->base.crtc)
7989 continue;
7990
7991 intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
7992
7993 if (prepare_pipes & (1 << intel_crtc->pipe))
7994 intel_encoder->connectors_active = false;
7995 }
7996
7997 intel_modeset_commit_output_state(dev);
7998
7999 /* Update computed state. */
8000 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
8001 base.head) {
8002 intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base);
8003 }
8004
8005 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
8006 if (!connector->encoder || !connector->encoder->crtc)
8007 continue;
8008
8009 intel_crtc = to_intel_crtc(connector->encoder->crtc);
8010
8011 if (prepare_pipes & (1 << intel_crtc->pipe)) {
68d34720
DV		 8012 struct drm_property *dpms_property =
8013 dev->mode_config.dpms_property;
8014
ea9d758d 8015 connector->dpms = DRM_MODE_DPMS_ON;
662595df 8016 drm_object_property_set_value(&connector->base,
68d34720
DV		 8017 dpms_property,
8018 DRM_MODE_DPMS_ON);
ea9d758d
DV		 8019
8020 intel_encoder = to_intel_encoder(connector->encoder);
8021 intel_encoder->connectors_active = true;
8022 }
8023 }
8024
8025}
8026
25c5b266
DV		 8027#define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
8028 list_for_each_entry((intel_crtc), \
8029 &(dev)->mode_config.crtc_list, \
8030 base.head) \
0973f18f 8031 if (mask & (1 <<(intel_crtc)->pipe))
25c5b266 8032
0e8ffe1b
DV		 8033static bool
8034intel_pipe_config_compare(struct intel_crtc_config *current_config,
8035 struct intel_crtc_config *pipe_config)
8036{
08a24034
DV		 8037#define PIPE_CONF_CHECK_I(name) \
8038 if (current_config->name != pipe_config->name) { \
8039 DRM_ERROR("mismatch in " #name " " \
8040 "(expected %i, found %i)\n", \
8041 current_config->name, \
8042 pipe_config->name); \
8043 return false; \
88adfff1
DV		 8044 }
8045
1bd1bd80
DV		 8046#define PIPE_CONF_CHECK_FLAGS(name, mask) \
8047 if ((current_config->name ^ pipe_config->name) & (mask)) { \
8048 DRM_ERROR("mismatch in " #name " " \
8049 "(expected %i, found %i)\n", \
8050 current_config->name & (mask), \
8051 pipe_config->name & (mask)); \
8052 return false; \
8053 }
8054
08a24034
DV		 8055 PIPE_CONF_CHECK_I(has_pch_encoder);
8056 PIPE_CONF_CHECK_I(fdi_lanes);
72419203
DV		 8057 PIPE_CONF_CHECK_I(fdi_m_n.gmch_m);
8058 PIPE_CONF_CHECK_I(fdi_m_n.gmch_n);
8059 PIPE_CONF_CHECK_I(fdi_m_n.link_m);
8060 PIPE_CONF_CHECK_I(fdi_m_n.link_n);
8061 PIPE_CONF_CHECK_I(fdi_m_n.tu);
08a24034 8062
1bd1bd80
DV		 8063 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay);
8064 PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal);
8065 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start);
8066 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end);
8067 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start);
8068 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end);
8069
8070 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay);
8071 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal);
8072 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start);
8073 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end);
8074 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start);
8075 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end);
8076
8077 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
8078 DRM_MODE_FLAG_INTERLACE);
8079
8080 PIPE_CONF_CHECK_I(requested_mode.hdisplay);
8081 PIPE_CONF_CHECK_I(requested_mode.vdisplay);
8082
08a24034 8083#undef PIPE_CONF_CHECK_I
1bd1bd80 8084#undef PIPE_CONF_CHECK_FLAGS
627eb5a3 8085
0e8ffe1b
DV		 8086 return true;
8087}
8088
b980514c 8089void
8af6cf88
DV		 8090intel_modeset_check_state(struct drm_device *dev)
8091{
0e8ffe1b 8092 drm_i915_private_t *dev_priv = dev->dev_private;
8af6cf88
DV		 8093 struct intel_crtc *crtc;
8094 struct intel_encoder *encoder;
8095 struct intel_connector *connector;
0e8ffe1b 8096 struct intel_crtc_config pipe_config;
8af6cf88
DV		 8097
8098 list_for_each_entry(connector, &dev->mode_config.connector_list,
8099 base.head) {
8100 /* This also checks the encoder/connector hw state with the
8101 * ->get_hw_state callbacks. */
8102 intel_connector_check_state(connector);
8103
8104 WARN(&connector->new_encoder->base != connector->base.encoder,
8105 "connector's staged encoder doesn't match current encoder\n");
8106 }
8107
8108 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8109 base.head) {
8110 bool enabled = false;
8111 bool active = false;
8112 enum pipe pipe, tracked_pipe;
8113
8114 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
8115 encoder->base.base.id,
8116 drm_get_encoder_name(&encoder->base));
8117
8118 WARN(&encoder->new_crtc->base != encoder->base.crtc,
8119 "encoder's stage crtc doesn't match current crtc\n");
8120 WARN(encoder->connectors_active && !encoder->base.crtc,
8121 "encoder's active_connectors set, but no crtc\n");
8122
8123 list_for_each_entry(connector, &dev->mode_config.connector_list,
8124 base.head) {
8125 if (connector->base.encoder != &encoder->base)
8126 continue;
8127 enabled = true;
8128 if (connector->base.dpms != DRM_MODE_DPMS_OFF)
8129 active = true;
8130 }
8131 WARN(!!encoder->base.crtc != enabled,
8132 "encoder's enabled state mismatch "
8133 "(expected %i, found %i)\n",
8134 !!encoder->base.crtc, enabled);
8135 WARN(active && !encoder->base.crtc,
8136 "active encoder with no crtc\n");
8137
8138 WARN(encoder->connectors_active != active,
8139 "encoder's computed active state doesn't match tracked active state "
8140 "(expected %i, found %i)\n", active, encoder->connectors_active);
8141
8142 active = encoder->get_hw_state(encoder, &pipe);
8143 WARN(active != encoder->connectors_active,
8144 "encoder's hw state doesn't match sw tracking "
8145 "(expected %i, found %i)\n",
8146 encoder->connectors_active, active);
8147
8148 if (!encoder->base.crtc)
8149 continue;
8150
8151 tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
8152 WARN(active && pipe != tracked_pipe,
8153 "active encoder's pipe doesn't match"
8154 "(expected %i, found %i)\n",
8155 tracked_pipe, pipe);
8156
8157 }
8158
8159 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
8160 base.head) {
8161 bool enabled = false;
8162 bool active = false;
8163
8164 DRM_DEBUG_KMS("[CRTC:%d]\n",
8165 crtc->base.base.id);
8166
8167 WARN(crtc->active && !crtc->base.enabled,
8168 "active crtc, but not enabled in sw tracking\n");
8169
8170 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8171 base.head) {
8172 if (encoder->base.crtc != &crtc->base)
8173 continue;
8174 enabled = true;
8175 if (encoder->connectors_active)
8176 active = true;
8177 }
8178 WARN(active != crtc->active,
8179 "crtc's computed active state doesn't match tracked active state "
8180 "(expected %i, found %i)\n", active, crtc->active);
8181 WARN(enabled != crtc->base.enabled,
8182 "crtc's computed enabled state doesn't match tracked enabled state "
8183 "(expected %i, found %i)\n", enabled, crtc->base.enabled);
8184
88adfff1 8185 memset(&pipe_config, 0, sizeof(pipe_config));
60c4ae10 8186 pipe_config.cpu_transcoder = crtc->config.cpu_transcoder;
0e8ffe1b
DV		 8187 active = dev_priv->display.get_pipe_config(crtc,
8188 &pipe_config);
8189 WARN(crtc->active != active,
8190 "crtc active state doesn't match with hw state "
8191 "(expected %i, found %i)\n", crtc->active, active);
8192
8193 WARN(active &&
8194 !intel_pipe_config_compare(&crtc->config, &pipe_config),
8195 "pipe state doesn't match!\n");
8af6cf88
DV		 8196 }
8197}
8198
f30da187
DV		 8199static int __intel_set_mode(struct drm_crtc *crtc,
8200 struct drm_display_mode *mode,
8201 int x, int y, struct drm_framebuffer *fb)
a6778b3c
DV		 8202{
8203 struct drm_device *dev = crtc->dev;
dbf2b54e 8204 drm_i915_private_t *dev_priv = dev->dev_private;
b8cecdf5
DV		 8205 struct drm_display_mode *saved_mode, *saved_hwmode;
8206 struct intel_crtc_config *pipe_config = NULL;
25c5b266
DV		 8207 struct intel_crtc *intel_crtc;
8208 unsigned disable_pipes, prepare_pipes, modeset_pipes;
c0c36b94 8209 int ret = 0;
a6778b3c 8210
3ac18232 8211 saved_mode = kmalloc(2 * sizeof(*saved_mode), GFP_KERNEL);
c0c36b94
CW		 8212 if (!saved_mode)
8213 return -ENOMEM;
3ac18232 8214 saved_hwmode = saved_mode + 1;
a6778b3c 8215
e2e1ed41 8216 intel_modeset_affected_pipes(crtc, &modeset_pipes,
25c5b266
DV		 8217 &prepare_pipes, &disable_pipes);
8218
3ac18232
TG		 8219 *saved_hwmode = crtc->hwmode;
8220 *saved_mode = crtc->mode;
a6778b3c 8221
25c5b266
DV		 8222 /* Hack: Because we don't (yet) support global modeset on multiple
8223 * crtcs, we don't keep track of the new mode for more than one crtc.
8224 * Hence simply check whether any bit is set in modeset_pipes in all the
8225 * pieces of code that are not yet converted to deal with mutliple crtcs
8226 * changing their mode at the same time. */
25c5b266 8227 if (modeset_pipes) {
4e53c2e0 8228 pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
b8cecdf5
DV		 8229 if (IS_ERR(pipe_config)) {
8230 ret = PTR_ERR(pipe_config);
8231 pipe_config = NULL;
8232
3ac18232 8233 goto out;
25c5b266 8234 }
25c5b266 8235 }
a6778b3c 8236
460da916
DV		 8237 for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
8238 intel_crtc_disable(&intel_crtc->base);
8239
ea9d758d
DV		 8240 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
8241 if (intel_crtc->base.enabled)
8242 dev_priv->display.crtc_disable(&intel_crtc->base);
8243 }
a6778b3c 8244
6c4c86f5
DV		 8245 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
8246 * to set it here already despite that we pass it down the callchain.
f6e5b160 8247 */
b8cecdf5 8248 if (modeset_pipes) {
3b117c8f 8249 enum transcoder tmp = to_intel_crtc(crtc)->config.cpu_transcoder;
25c5b266 8250 crtc->mode = *mode;
b8cecdf5
DV		 8251 /* mode_set/enable/disable functions rely on a correct pipe
8252 * config. */
8253 to_intel_crtc(crtc)->config = *pipe_config;
3b117c8f 8254 to_intel_crtc(crtc)->config.cpu_transcoder = tmp;
b8cecdf5 8255 }
7758a113 8256
ea9d758d
DV		 8257 /* Only after disabling all output pipelines that will be changed can we
8258 * update the the output configuration. */
8259 intel_modeset_update_state(dev, prepare_pipes);
f6e5b160 8260
47fab737
DV		 8261 if (dev_priv->display.modeset_global_resources)
8262 dev_priv->display.modeset_global_resources(dev);
8263
a6778b3c
DV		 8264 /* Set up the DPLL and any encoders state that needs to adjust or depend
8265 * on the DPLL.
f6e5b160 8266 */
25c5b266 8267 for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
c0c36b94 8268 ret = intel_crtc_mode_set(&intel_crtc->base,
c0c36b94
CW		 8269 x, y, fb);
8270 if (ret)
8271 goto done;
a6778b3c
DV		 8272 }
8273
8274 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
25c5b266
DV		 8275 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
8276 dev_priv->display.crtc_enable(&intel_crtc->base);
a6778b3c 8277
25c5b266
DV		 8278 if (modeset_pipes) {
8279 /* Store real post-adjustment hardware mode. */
b8cecdf5 8280 crtc->hwmode = pipe_config->adjusted_mode;
a6778b3c 8281
25c5b266
DV		 8282 /* Calculate and store various constants which
8283 * are later needed by vblank and swap-completion
8284 * timestamping. They are derived from true hwmode.
8285 */
8286 drm_calc_timestamping_constants(crtc);
8287 }
a6778b3c
DV		 8288
8289 /* FIXME: add subpixel order */
8290done:
c0c36b94 8291 if (ret && crtc->enabled) {
3ac18232
TG		 8292 crtc->hwmode = *saved_hwmode;
8293 crtc->mode = *saved_mode;
a6778b3c
DV		 8294 }
8295
3ac18232 8296out:
b8cecdf5 8297 kfree(pipe_config);
3ac18232 8298 kfree(saved_mode);
a6778b3c 8299 return ret;
f6e5b160
CW		 8300}
8301
f30da187
DV		 8302int intel_set_mode(struct drm_crtc *crtc,
8303 struct drm_display_mode *mode,
8304 int x, int y, struct drm_framebuffer *fb)
8305{
8306 int ret;
8307
8308 ret = __intel_set_mode(crtc, mode, x, y, fb);
8309
8310 if (ret == 0)
8311 intel_modeset_check_state(crtc->dev);
8312
8313 return ret;
8314}
8315
c0c36b94
CW		 8316void intel_crtc_restore_mode(struct drm_crtc *crtc)
8317{
8318 intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb);
8319}
8320
25c5b266
DV		 8321#undef for_each_intel_crtc_masked
8322
d9e55608
DV		 8323static void intel_set_config_free(struct intel_set_config *config)
8324{
8325 if (!config)
8326 return;
8327
1aa4b628
DV		 8328 kfree(config->save_connector_encoders);
8329 kfree(config->save_encoder_crtcs);
d9e55608
DV		 8330 kfree(config);
8331}
8332
85f9eb71
DV		 8333static int intel_set_config_save_state(struct drm_device *dev,
8334 struct intel_set_config *config)
8335{
85f9eb71
DV		 8336 struct drm_encoder *encoder;
8337 struct drm_connector *connector;
8338 int count;
8339
1aa4b628
DV		 8340 config->save_encoder_crtcs =
8341 kcalloc(dev->mode_config.num_encoder,
8342 sizeof(struct drm_crtc *), GFP_KERNEL);
8343 if (!config->save_encoder_crtcs)
85f9eb71
DV		 8344 return -ENOMEM;
8345
1aa4b628
DV		 8346 config->save_connector_encoders =
8347 kcalloc(dev->mode_config.num_connector,
8348 sizeof(struct drm_encoder *), GFP_KERNEL);
8349 if (!config->save_connector_encoders)
85f9eb71
DV		 8350 return -ENOMEM;
8351
8352 /* Copy data. Note that driver private data is not affected.
8353 * Should anything bad happen only the expected state is
8354 * restored, not the drivers personal bookkeeping.
8355 */
85f9eb71
DV		 8356 count = 0;
8357 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1aa4b628 8358 config->save_encoder_crtcs[count++] = encoder->crtc;
85f9eb71
DV		 8359 }
8360
8361 count = 0;
8362 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1aa4b628 8363 config->save_connector_encoders[count++] = connector->encoder;
85f9eb71
DV		 8364 }
8365
8366 return 0;
8367}
8368
8369static void intel_set_config_restore_state(struct drm_device *dev,
8370 struct intel_set_config *config)
8371{
9a935856
DV		 8372 struct intel_encoder *encoder;
8373 struct intel_connector *connector;
85f9eb71
DV		 8374 int count;
8375
85f9eb71 8376 count = 0;
9a935856
DV		 8377 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
8378 encoder->new_crtc =
8379 to_intel_crtc(config->save_encoder_crtcs[count++]);
85f9eb71
DV		 8380 }
8381
8382 count = 0;
9a935856
DV		 8383 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
8384 connector->new_encoder =
8385 to_intel_encoder(config->save_connector_encoders[count++]);
85f9eb71
DV		 8386 }
8387}
8388
5e2b584e
DV		 8389static void
8390intel_set_config_compute_mode_changes(struct drm_mode_set *set,
8391 struct intel_set_config *config)
8392{
8393
8394 /* We should be able to check here if the fb has the same properties
8395 * and then just flip_or_move it */
8396 if (set->crtc->fb != set->fb) {
8397 /* If we have no fb then treat it as a full mode set */
8398 if (set->crtc->fb == NULL) {
8399 DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
8400 config->mode_changed = true;
8401 } else if (set->fb == NULL) {
8402 config->mode_changed = true;
72f4901e
DV		 8403 } else if (set->fb->pixel_format !=
8404 set->crtc->fb->pixel_format) {
5e2b584e
DV		 8405 config->mode_changed = true;
8406 } else
8407 config->fb_changed = true;
8408 }
8409
835c5873 8410 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
5e2b584e
DV		 8411 config->fb_changed = true;
8412
8413 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
8414 DRM_DEBUG_KMS("modes are different, full mode set\n");
8415 drm_mode_debug_printmodeline(&set->crtc->mode);
8416 drm_mode_debug_printmodeline(set->mode);
8417 config->mode_changed = true;
8418 }
8419}
8420
2e431051 8421static int
9a935856
DV		 8422intel_modeset_stage_output_state(struct drm_device *dev,
8423 struct drm_mode_set *set,
8424 struct intel_set_config *config)
50f56119 8425{
85f9eb71 8426 struct drm_crtc *new_crtc;
9a935856
DV		 8427 struct intel_connector *connector;
8428 struct intel_encoder *encoder;
2e431051 8429 int count, ro;
50f56119 8430
9abdda74 8431 /* The upper layers ensure that we either disable a crtc or have a list
9a935856
DV		 8432 * of connectors. For paranoia, double-check this. */
8433 WARN_ON(!set->fb && (set->num_connectors != 0));
8434 WARN_ON(set->fb && (set->num_connectors == 0));
8435
50f56119 8436 count = 0;
9a935856
DV		 8437 list_for_each_entry(connector, &dev->mode_config.connector_list,
8438 base.head) {
8439 /* Otherwise traverse passed in connector list and get encoders
8440 * for them. */
50f56119 8441 for (ro = 0; ro < set->num_connectors; ro++) {
9a935856
DV		 8442 if (set->connectors[ro] == &connector->base) {
8443 connector->new_encoder = connector->encoder;
50f56119
DV		 8444 break;
8445 }
8446 }
8447
9a935856
DV		 8448 /* If we disable the crtc, disable all its connectors. Also, if
8449 * the connector is on the changing crtc but not on the new
8450 * connector list, disable it. */
8451 if ((!set->fb || ro == set->num_connectors) &&
8452 connector->base.encoder &&
8453 connector->base.encoder->crtc == set->crtc) {
8454 connector->new_encoder = NULL;
8455
8456 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
8457 connector->base.base.id,
8458 drm_get_connector_name(&connector->base));
8459 }
8460
8461
8462 if (&connector->new_encoder->base != connector->base.encoder) {
50f56119 8463 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
5e2b584e 8464 config->mode_changed = true;
50f56119
DV		 8465 }
8466 }
9a935856 8467 /* connector->new_encoder is now updated for all connectors. */
50f56119 8468
9a935856 8469 /* Update crtc of enabled connectors. */
50f56119 8470 count = 0;
9a935856
DV		 8471 list_for_each_entry(connector, &dev->mode_config.connector_list,
8472 base.head) {
8473 if (!connector->new_encoder)
50f56119
DV		 8474 continue;
8475
9a935856 8476 new_crtc = connector->new_encoder->base.crtc;
50f56119
DV		 8477
8478 for (ro = 0; ro < set->num_connectors; ro++) {
9a935856 8479 if (set->connectors[ro] == &connector->base)
50f56119
DV		 8480 new_crtc = set->crtc;
8481 }
8482
8483 /* Make sure the new CRTC will work with the encoder */
9a935856
DV		 8484 if (!intel_encoder_crtc_ok(&connector->new_encoder->base,
8485 new_crtc)) {
5e2b584e 8486 return -EINVAL;
50f56119 8487 }
9a935856
DV		 8488 connector->encoder->new_crtc = to_intel_crtc(new_crtc);
8489
8490 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
8491 connector->base.base.id,
8492 drm_get_connector_name(&connector->base),
8493 new_crtc->base.id);
8494 }
8495
8496 /* Check for any encoders that needs to be disabled. */
8497 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8498 base.head) {
8499 list_for_each_entry(connector,
8500 &dev->mode_config.connector_list,
8501 base.head) {
8502 if (connector->new_encoder == encoder) {
8503 WARN_ON(!connector->new_encoder->new_crtc);
8504
8505 goto next_encoder;
8506 }
8507 }
8508 encoder->new_crtc = NULL;
8509next_encoder:
8510 /* Only now check for crtc changes so we don't miss encoders
8511 * that will be disabled. */
8512 if (&encoder->new_crtc->base != encoder->base.crtc) {
50f56119 8513 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
5e2b584e 8514 config->mode_changed = true;
50f56119
DV		 8515 }
8516 }
9a935856 8517 /* Now we've also updated encoder->new_crtc for all encoders. */
50f56119 8518
2e431051
DV		 8519 return 0;
8520}
8521
8522static int intel_crtc_set_config(struct drm_mode_set *set)
8523{
8524 struct drm_device *dev;
2e431051
DV		 8525 struct drm_mode_set save_set;
8526 struct intel_set_config *config;
8527 int ret;
2e431051 8528
8d3e375e
DV		 8529 BUG_ON(!set);
8530 BUG_ON(!set->crtc);
8531 BUG_ON(!set->crtc->helper_private);
2e431051 8532
7e53f3a4
DV		 8533 /* Enforce sane interface api - has been abused by the fb helper. */
8534 BUG_ON(!set->mode && set->fb);
8535 BUG_ON(set->fb && set->num_connectors == 0);
431e50f7 8536
2e431051
DV		 8537 if (set->fb) {
8538 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
8539 set->crtc->base.id, set->fb->base.id,
8540 (int)set->num_connectors, set->x, set->y);
8541 } else {
8542 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
2e431051
DV		 8543 }
8544
8545 dev = set->crtc->dev;
8546
8547 ret = -ENOMEM;
8548 config = kzalloc(sizeof(*config), GFP_KERNEL);
8549 if (!config)
8550 goto out_config;
8551
8552 ret = intel_set_config_save_state(dev, config);
8553 if (ret)
8554 goto out_config;
8555
8556 save_set.crtc = set->crtc;
8557 save_set.mode = &set->crtc->mode;
8558 save_set.x = set->crtc->x;
8559 save_set.y = set->crtc->y;
8560 save_set.fb = set->crtc->fb;
8561
8562 /* Compute whether we need a full modeset, only an fb base update or no
8563 * change at all. In the future we might also check whether only the
8564 * mode changed, e.g. for LVDS where we only change the panel fitter in
8565 * such cases. */
8566 intel_set_config_compute_mode_changes(set, config);
8567
9a935856 8568 ret = intel_modeset_stage_output_state(dev, set, config);
2e431051
DV		 8569 if (ret)
8570 goto fail;
8571
5e2b584e 8572 if (config->mode_changed) {
87f1faa6 8573 if (set->mode) {
50f56119
DV		 8574 DRM_DEBUG_KMS("attempting to set mode from"
8575 " userspace\n");
8576 drm_mode_debug_printmodeline(set->mode);
87f1faa6
DV		 8577 }
8578
c0c36b94
CW		 8579 ret = intel_set_mode(set->crtc, set->mode,
8580 set->x, set->y, set->fb);
8581 if (ret) {
8582 DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n",
8583 set->crtc->base.id, ret);
87f1faa6
DV		 8584 goto fail;
8585 }
5e2b584e 8586 } else if (config->fb_changed) {
4878cae2
VS		 8587 intel_crtc_wait_for_pending_flips(set->crtc);
8588
4f660f49 8589 ret = intel_pipe_set_base(set->crtc,
94352cf9 8590 set->x, set->y, set->fb);
50f56119
DV		 8591 }
8592
d9e55608
DV		 8593 intel_set_config_free(config);
8594
50f56119
DV		 8595 return 0;
8596
8597fail:
85f9eb71 8598 intel_set_config_restore_state(dev, config);
50f56119
DV		 8599
8600 /* Try to restore the config */
5e2b584e 8601 if (config->mode_changed &&
c0c36b94
CW		 8602 intel_set_mode(save_set.crtc, save_set.mode,
8603 save_set.x, save_set.y, save_set.fb))
50f56119
DV		 8604 DRM_ERROR("failed to restore config after modeset failure\n");
8605
d9e55608
DV		 8606out_config:
8607 intel_set_config_free(config);
50f56119
DV		 8608 return ret;
8609}
f6e5b160
CW		 8610
8611static const struct drm_crtc_funcs intel_crtc_funcs = {
f6e5b160
CW		 8612 .cursor_set = intel_crtc_cursor_set,
8613 .cursor_move = intel_crtc_cursor_move,
8614 .gamma_set = intel_crtc_gamma_set,
50f56119 8615 .set_config = intel_crtc_set_config,
f6e5b160
CW		 8616 .destroy = intel_crtc_destroy,
8617 .page_flip = intel_crtc_page_flip,
8618};
8619
79f689aa
PZ		 8620static void intel_cpu_pll_init(struct drm_device *dev)
8621{
affa9354 8622 if (HAS_DDI(dev))
79f689aa
PZ		 8623 intel_ddi_pll_init(dev);
8624}
8625
ee7b9f93
JB		 8626static void intel_pch_pll_init(struct drm_device *dev)
8627{
8628 drm_i915_private_t *dev_priv = dev->dev_private;
8629 int i;
8630
8631 if (dev_priv->num_pch_pll == 0) {
8632 DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n");
8633 return;
8634 }
8635
8636 for (i = 0; i < dev_priv->num_pch_pll; i++) {
8637 dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i);
8638 dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i);
8639 dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i);
8640 }
8641}
8642
b358d0a6 8643static void intel_crtc_init(struct drm_device *dev, int pipe)
79e53945 8644{
22fd0fab 8645 drm_i915_private_t *dev_priv = dev->dev_private;
79e53945
JB		 8646 struct intel_crtc *intel_crtc;
8647 int i;
8648
8649 intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
8650 if (intel_crtc == NULL)
8651 return;
8652
8653 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
8654
8655 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
79e53945
JB		 8656 for (i = 0; i < 256; i++) {
8657 intel_crtc->lut_r[i] = i;
8658 intel_crtc->lut_g[i] = i;
8659 intel_crtc->lut_b[i] = i;
8660 }
8661
80824003
JB		 8662 /* Swap pipes & planes for FBC on pre-965 */
8663 intel_crtc->pipe = pipe;
8664 intel_crtc->plane = pipe;
3b117c8f 8665 intel_crtc->config.cpu_transcoder = pipe;
e2e767ab 8666 if (IS_MOBILE(dev) && IS_GEN3(dev)) {
28c97730 8667 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
e2e767ab 8668 intel_crtc->plane = !pipe;
80824003
JB		 8669 }
8670
22fd0fab
JB		 8671 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
8672 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
8673 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
8674 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
8675
79e53945 8676 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
79e53945
JB		 8677}
8678
08d7b3d1 8679int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
05394f39 8680 struct drm_file *file)
08d7b3d1 8681{
08d7b3d1 8682 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
c05422d5
DV		 8683 struct drm_mode_object *drmmode_obj;
8684 struct intel_crtc *crtc;
08d7b3d1 8685
1cff8f6b
DV		 8686 if (!drm_core_check_feature(dev, DRIVER_MODESET))
8687 return -ENODEV;
08d7b3d1 8688
c05422d5
DV		 8689 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
8690 DRM_MODE_OBJECT_CRTC);
08d7b3d1 8691
c05422d5 8692 if (!drmmode_obj) {
08d7b3d1
CW		 8693 DRM_ERROR("no such CRTC id\n");
8694 return -EINVAL;
8695 }
8696
c05422d5
DV		 8697 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
8698 pipe_from_crtc_id->pipe = crtc->pipe;
08d7b3d1 8699
c05422d5 8700 return 0;
08d7b3d1
CW		 8701}
8702
66a9278e 8703static int intel_encoder_clones(struct intel_encoder *encoder)
79e53945 8704{
66a9278e
DV		 8705 struct drm_device *dev = encoder->base.dev;
8706 struct intel_encoder *source_encoder;
79e53945 8707 int index_mask = 0;
79e53945
JB		 8708 int entry = 0;
8709
66a9278e
DV		 8710 list_for_each_entry(source_encoder,
8711 &dev->mode_config.encoder_list, base.head) {
8712
8713 if (encoder == source_encoder)
79e53945 8714 index_mask |= (1 << entry);
66a9278e
DV		 8715
8716 /* Intel hw has only one MUX where enocoders could be cloned. */
8717 if (encoder->cloneable && source_encoder->cloneable)
8718 index_mask |= (1 << entry);
8719
79e53945
JB		 8720 entry++;
8721 }
4ef69c7a 8722
79e53945
JB		 8723 return index_mask;
8724}
8725
4d302442
CW		 8726static bool has_edp_a(struct drm_device *dev)
8727{
8728 struct drm_i915_private *dev_priv = dev->dev_private;
8729
8730 if (!IS_MOBILE(dev))
8731 return false;
8732
8733 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
8734 return false;
8735
8736 if (IS_GEN5(dev) &&
8737 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
8738 return false;
8739
8740 return true;
8741}
8742
79e53945
JB		 8743static void intel_setup_outputs(struct drm_device *dev)
8744{
725e30ad 8745 struct drm_i915_private *dev_priv = dev->dev_private;
4ef69c7a 8746 struct intel_encoder *encoder;
cb0953d7 8747 bool dpd_is_edp = false;
f3cfcba6 8748 bool has_lvds;
79e53945 8749
f3cfcba6 8750 has_lvds = intel_lvds_init(dev);
c5d1b51d
CW		 8751 if (!has_lvds && !HAS_PCH_SPLIT(dev)) {
8752 /* disable the panel fitter on everything but LVDS */
8753 I915_WRITE(PFIT_CONTROL, 0);
8754 }
79e53945 8755
c40c0f5b 8756 if (!IS_ULT(dev))
79935fca 8757 intel_crt_init(dev);
cb0953d7 8758
affa9354 8759 if (HAS_DDI(dev)) {
0e72a5b5
ED		 8760 int found;
8761
8762 /* Haswell uses DDI functions to detect digital outputs */
8763 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
8764 /* DDI A only supports eDP */
8765 if (found)
8766 intel_ddi_init(dev, PORT_A);
8767
8768 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
8769 * register */
8770 found = I915_READ(SFUSE_STRAP);
8771
8772 if (found & SFUSE_STRAP_DDIB_DETECTED)
8773 intel_ddi_init(dev, PORT_B);
8774 if (found & SFUSE_STRAP_DDIC_DETECTED)
8775 intel_ddi_init(dev, PORT_C);
8776 if (found & SFUSE_STRAP_DDID_DETECTED)
8777 intel_ddi_init(dev, PORT_D);
8778 } else if (HAS_PCH_SPLIT(dev)) {
cb0953d7 8779 int found;
270b3042
DV		 8780 dpd_is_edp = intel_dpd_is_edp(dev);
8781
8782 if (has_edp_a(dev))
8783 intel_dp_init(dev, DP_A, PORT_A);
cb0953d7 8784
dc0fa718 8785 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
461ed3ca 8786 /* PCH SDVOB multiplex with HDMIB */
eef4eacb 8787 found = intel_sdvo_init(dev, PCH_SDVOB, true);
30ad48b7 8788 if (!found)
e2debe91 8789 intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
5eb08b69 8790 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
ab9d7c30 8791 intel_dp_init(dev, PCH_DP_B, PORT_B);
30ad48b7
ZW		 8792 }
8793
dc0fa718 8794 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
e2debe91 8795 intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
30ad48b7 8796
dc0fa718 8797 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
e2debe91 8798 intel_hdmi_init(dev, PCH_HDMID, PORT_D);
30ad48b7 8799
5eb08b69 8800 if (I915_READ(PCH_DP_C) & DP_DETECTED)
ab9d7c30 8801 intel_dp_init(dev, PCH_DP_C, PORT_C);
5eb08b69 8802
270b3042 8803 if (I915_READ(PCH_DP_D) & DP_DETECTED)
ab9d7c30 8804 intel_dp_init(dev, PCH_DP_D, PORT_D);
4a87d65d 8805 } else if (IS_VALLEYVIEW(dev)) {
19c03924 8806 /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */
67cfc203
VS		 8807 if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
8808 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C);
19c03924 8809
dc0fa718 8810 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
e2debe91
PZ		 8811 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
8812 PORT_B);
67cfc203
VS		 8813 if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
8814 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
4a87d65d 8815 }
103a196f 8816 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
27185ae1 8817 bool found = false;
7d57382e 8818
e2debe91 8819 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
b01f2c3a 8820 DRM_DEBUG_KMS("probing SDVOB\n");
e2debe91 8821 found = intel_sdvo_init(dev, GEN3_SDVOB, true);
b01f2c3a
JB		 8822 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
8823 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
e2debe91 8824 intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
b01f2c3a 8825 }
27185ae1 8826
b01f2c3a
JB		 8827 if (!found && SUPPORTS_INTEGRATED_DP(dev)) {
8828 DRM_DEBUG_KMS("probing DP_B\n");
ab9d7c30 8829 intel_dp_init(dev, DP_B, PORT_B);
b01f2c3a 8830 }
725e30ad 8831 }
13520b05
KH		 8832
8833 /* Before G4X SDVOC doesn't have its own detect register */
13520b05 8834
e2debe91 8835 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
b01f2c3a 8836 DRM_DEBUG_KMS("probing SDVOC\n");
e2debe91 8837 found = intel_sdvo_init(dev, GEN3_SDVOC, false);
b01f2c3a 8838 }
27185ae1 8839
e2debe91 8840 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
27185ae1 8841
b01f2c3a
JB		 8842 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
8843 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
e2debe91 8844 intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
b01f2c3a
JB		 8845 }
8846 if (SUPPORTS_INTEGRATED_DP(dev)) {
8847 DRM_DEBUG_KMS("probing DP_C\n");
ab9d7c30 8848 intel_dp_init(dev, DP_C, PORT_C);
b01f2c3a 8849 }
725e30ad 8850 }
27185ae1 8851
b01f2c3a
JB		 8852 if (SUPPORTS_INTEGRATED_DP(dev) &&
8853 (I915_READ(DP_D) & DP_DETECTED)) {
8854 DRM_DEBUG_KMS("probing DP_D\n");
ab9d7c30 8855 intel_dp_init(dev, DP_D, PORT_D);
b01f2c3a 8856 }
bad720ff 8857 } else if (IS_GEN2(dev))
79e53945
JB		 8858 intel_dvo_init(dev);
8859
103a196f 8860 if (SUPPORTS_TV(dev))
79e53945
JB		 8861 intel_tv_init(dev);
8862
4ef69c7a
CW		 8863 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
8864 encoder->base.possible_crtcs = encoder->crtc_mask;
8865 encoder->base.possible_clones =
66a9278e 8866 intel_encoder_clones(encoder);
79e53945 8867 }
47356eb6 8868
dde86e2d 8869 intel_init_pch_refclk(dev);
270b3042
DV		 8870
8871 drm_helper_move_panel_connectors_to_head(dev);
79e53945
JB		 8872}
8873
8874static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
8875{
8876 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
79e53945
JB		 8877
8878 drm_framebuffer_cleanup(fb);
05394f39 8879 drm_gem_object_unreference_unlocked(&intel_fb->obj->base);
79e53945
JB		 8880
8881 kfree(intel_fb);
8882}
8883
8884static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
05394f39 8885 struct drm_file *file,
79e53945
JB		 8886 unsigned int *handle)
8887{
8888 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
05394f39 8889 struct drm_i915_gem_object *obj = intel_fb->obj;
79e53945 8890
05394f39 8891 return drm_gem_handle_create(file, &obj->base, handle);
79e53945
JB		 8892}
8893
8894static const struct drm_framebuffer_funcs intel_fb_funcs = {
8895 .destroy = intel_user_framebuffer_destroy,
8896 .create_handle = intel_user_framebuffer_create_handle,
8897};
8898
38651674
DA		 8899int intel_framebuffer_init(struct drm_device *dev,
8900 struct intel_framebuffer *intel_fb,
308e5bcb 8901 struct drm_mode_fb_cmd2 *mode_cmd,
05394f39 8902 struct drm_i915_gem_object *obj)
79e53945 8903{
79e53945
JB		 8904 int ret;
8905
c16ed4be
CW		 8906 if (obj->tiling_mode == I915_TILING_Y) {
8907 DRM_DEBUG("hardware does not support tiling Y\n");
57cd6508 8908 return -EINVAL;
c16ed4be 8909 }
57cd6508 8910
c16ed4be
CW		 8911 if (mode_cmd->pitches[0] & 63) {
8912 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
8913 mode_cmd->pitches[0]);
57cd6508 8914 return -EINVAL;
c16ed4be 8915 }
57cd6508 8916
5d7bd705 8917 /* FIXME <= Gen4 stride limits are bit unclear */
c16ed4be
CW		 8918 if (mode_cmd->pitches[0] > 32768) {
8919 DRM_DEBUG("pitch (%d) must be at less than 32768\n",
8920 mode_cmd->pitches[0]);
5d7bd705 8921 return -EINVAL;
c16ed4be 8922 }
5d7bd705
VS		 8923
8924 if (obj->tiling_mode != I915_TILING_NONE &&
c16ed4be
CW		 8925 mode_cmd->pitches[0] != obj->stride) {
8926 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
8927 mode_cmd->pitches[0], obj->stride);
5d7bd705 8928 return -EINVAL;
c16ed4be 8929 }
5d7bd705 8930
57779d06 8931 /* Reject formats not supported by any plane early. */
308e5bcb 8932 switch (mode_cmd->pixel_format) {
57779d06 8933 case DRM_FORMAT_C8:
04b3924d
VS		 8934 case DRM_FORMAT_RGB565:
8935 case DRM_FORMAT_XRGB8888:
8936 case DRM_FORMAT_ARGB8888:
57779d06
VS		 8937 break;
8938 case DRM_FORMAT_XRGB1555:
8939 case DRM_FORMAT_ARGB1555:
c16ed4be
CW		 8940 if (INTEL_INFO(dev)->gen > 3) {
8941 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
57779d06 8942 return -EINVAL;
c16ed4be 8943 }
57779d06
VS		 8944 break;
8945 case DRM_FORMAT_XBGR8888:
8946 case DRM_FORMAT_ABGR8888:
04b3924d
VS		 8947 case DRM_FORMAT_XRGB2101010:
8948 case DRM_FORMAT_ARGB2101010:
57779d06
VS		 8949 case DRM_FORMAT_XBGR2101010:
8950 case DRM_FORMAT_ABGR2101010:
c16ed4be
CW		 8951 if (INTEL_INFO(dev)->gen < 4) {
8952 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
57779d06 8953 return -EINVAL;
c16ed4be 8954 }
b5626747 8955 break;
04b3924d
VS		 8956 case DRM_FORMAT_YUYV:
8957 case DRM_FORMAT_UYVY:
8958 case DRM_FORMAT_YVYU:
8959 case DRM_FORMAT_VYUY:
c16ed4be
CW		 8960 if (INTEL_INFO(dev)->gen < 5) {
8961 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
57779d06 8962 return -EINVAL;
c16ed4be 8963 }
57cd6508
CW		 8964 break;
8965 default:
c16ed4be 8966 DRM_DEBUG("unsupported pixel format 0x%08x\n", mode_cmd->pixel_format);
57cd6508
CW		 8967 return -EINVAL;
8968 }
8969
90f9a336
VS		 8970 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
8971 if (mode_cmd->offsets[0] != 0)
8972 return -EINVAL;
8973
c7d73f6a
DV		 8974 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
8975 intel_fb->obj = obj;
8976
79e53945
JB		 8977 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
8978 if (ret) {
8979 DRM_ERROR("framebuffer init failed %d\n", ret);
8980 return ret;
8981 }
8982
79e53945
JB		 8983 return 0;
8984}
8985
79e53945
JB		 8986static struct drm_framebuffer *
8987intel_user_framebuffer_create(struct drm_device *dev,
8988 struct drm_file *filp,
308e5bcb 8989 struct drm_mode_fb_cmd2 *mode_cmd)
79e53945 8990{
05394f39 8991 struct drm_i915_gem_object *obj;
79e53945 8992
308e5bcb
JB		 8993 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
8994 mode_cmd->handles[0]));
c8725226 8995 if (&obj->base == NULL)
cce13ff7 8996 return ERR_PTR(-ENOENT);
79e53945 8997
d2dff872 8998 return intel_framebuffer_create(dev, mode_cmd, obj);
79e53945
JB		 8999}
9000
79e53945 9001static const struct drm_mode_config_funcs intel_mode_funcs = {
79e53945 9002 .fb_create = intel_user_framebuffer_create,
eb1f8e4f 9003 .output_poll_changed = intel_fb_output_poll_changed,
79e53945
JB		 9004};
9005
e70236a8
JB		 9006/* Set up chip specific display functions */
9007static void intel_init_display(struct drm_device *dev)
9008{
9009 struct drm_i915_private *dev_priv = dev->dev_private;
9010
affa9354 9011 if (HAS_DDI(dev)) {
0e8ffe1b 9012 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
09b4ddf9 9013 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
4f771f10
PZ		 9014 dev_priv->display.crtc_enable = haswell_crtc_enable;
9015 dev_priv->display.crtc_disable = haswell_crtc_disable;
6441ab5f 9016 dev_priv->display.off = haswell_crtc_off;
09b4ddf9
PZ		 9017 dev_priv->display.update_plane = ironlake_update_plane;
9018 } else if (HAS_PCH_SPLIT(dev)) {
0e8ffe1b 9019 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
f564048e 9020 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
76e5a89c
DV		 9021 dev_priv->display.crtc_enable = ironlake_crtc_enable;
9022 dev_priv->display.crtc_disable = ironlake_crtc_disable;
ee7b9f93 9023 dev_priv->display.off = ironlake_crtc_off;
17638cd6 9024 dev_priv->display.update_plane = ironlake_update_plane;
89b667f8
JB		 9025 } else if (IS_VALLEYVIEW(dev)) {
9026 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
9027 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
9028 dev_priv->display.crtc_enable = valleyview_crtc_enable;
9029 dev_priv->display.crtc_disable = i9xx_crtc_disable;
9030 dev_priv->display.off = i9xx_crtc_off;
9031 dev_priv->display.update_plane = i9xx_update_plane;
f564048e 9032 } else {
0e8ffe1b 9033 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
f564048e 9034 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
76e5a89c
DV		 9035 dev_priv->display.crtc_enable = i9xx_crtc_enable;
9036 dev_priv->display.crtc_disable = i9xx_crtc_disable;
ee7b9f93 9037 dev_priv->display.off = i9xx_crtc_off;
17638cd6 9038 dev_priv->display.update_plane = i9xx_update_plane;
f564048e 9039 }
e70236a8 9040
e70236a8 9041 /* Returns the core display clock speed */
25eb05fc
JB		 9042 if (IS_VALLEYVIEW(dev))
9043 dev_priv->display.get_display_clock_speed =
9044 valleyview_get_display_clock_speed;
9045 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
e70236a8
JB		 9046 dev_priv->display.get_display_clock_speed =
9047 i945_get_display_clock_speed;
9048 else if (IS_I915G(dev))
9049 dev_priv->display.get_display_clock_speed =
9050 i915_get_display_clock_speed;
f2b115e6 9051 else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev))
e70236a8
JB		 9052 dev_priv->display.get_display_clock_speed =
9053 i9xx_misc_get_display_clock_speed;
9054 else if (IS_I915GM(dev))
9055 dev_priv->display.get_display_clock_speed =
9056 i915gm_get_display_clock_speed;
9057 else if (IS_I865G(dev))
9058 dev_priv->display.get_display_clock_speed =
9059 i865_get_display_clock_speed;
f0f8a9ce 9060 else if (IS_I85X(dev))
e70236a8
JB		 9061 dev_priv->display.get_display_clock_speed =
9062 i855_get_display_clock_speed;
9063 else /* 852, 830 */
9064 dev_priv->display.get_display_clock_speed =
9065 i830_get_display_clock_speed;
9066
7f8a8569 9067 if (HAS_PCH_SPLIT(dev)) {
f00a3ddf 9068 if (IS_GEN5(dev)) {
674cf967 9069 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
e0dac65e 9070 dev_priv->display.write_eld = ironlake_write_eld;
1398261a 9071 } else if (IS_GEN6(dev)) {
674cf967 9072 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
e0dac65e 9073 dev_priv->display.write_eld = ironlake_write_eld;
357555c0
JB		 9074 } else if (IS_IVYBRIDGE(dev)) {
9075 /* FIXME: detect B0+ stepping and use auto training */
9076 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
e0dac65e 9077 dev_priv->display.write_eld = ironlake_write_eld;
01a415fd
DV		 9078 dev_priv->display.modeset_global_resources =
9079 ivb_modeset_global_resources;
c82e4d26
ED		 9080 } else if (IS_HASWELL(dev)) {
9081 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
83358c85 9082 dev_priv->display.write_eld = haswell_write_eld;
d6dd9eb1
DV		 9083 dev_priv->display.modeset_global_resources =
9084 haswell_modeset_global_resources;
a0e63c22 9085 }
6067aaea 9086 } else if (IS_G4X(dev)) {
e0dac65e 9087 dev_priv->display.write_eld = g4x_write_eld;
e70236a8 9088 }
8c9f3aaf
JB		 9089
9090 /* Default just returns -ENODEV to indicate unsupported */
9091 dev_priv->display.queue_flip = intel_default_queue_flip;
9092
9093 switch (INTEL_INFO(dev)->gen) {
9094 case 2:
9095 dev_priv->display.queue_flip = intel_gen2_queue_flip;
9096 break;
9097
9098 case 3:
9099 dev_priv->display.queue_flip = intel_gen3_queue_flip;
9100 break;
9101
9102 case 4:
9103 case 5:
9104 dev_priv->display.queue_flip = intel_gen4_queue_flip;
9105 break;
9106
9107 case 6:
9108 dev_priv->display.queue_flip = intel_gen6_queue_flip;
9109 break;
7c9017e5
JB		 9110 case 7:
9111 dev_priv->display.queue_flip = intel_gen7_queue_flip;
9112 break;
8c9f3aaf 9113 }
e70236a8
JB		 9114}
9115
b690e96c
JB		 9116/*
9117 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
9118 * resume, or other times. This quirk makes sure that's the case for
9119 * affected systems.
9120 */
0206e353 9121static void quirk_pipea_force(struct drm_device *dev)
b690e96c
JB		 9122{
9123 struct drm_i915_private *dev_priv = dev->dev_private;
9124
9125 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
bc0daf48 9126 DRM_INFO("applying pipe a force quirk\n");
b690e96c
JB		 9127}
9128
435793df
KP		 9129/*
9130 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
9131 */
9132static void quirk_ssc_force_disable(struct drm_device *dev)
9133{
9134 struct drm_i915_private *dev_priv = dev->dev_private;
9135 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
bc0daf48 9136 DRM_INFO("applying lvds SSC disable quirk\n");
435793df
KP		 9137}
9138
4dca20ef 9139/*
5a15ab5b
CE		 9140 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
9141 * brightness value
4dca20ef
CE		 9142 */
9143static void quirk_invert_brightness(struct drm_device *dev)
9144{
9145 struct drm_i915_private *dev_priv = dev->dev_private;
9146 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
bc0daf48 9147 DRM_INFO("applying inverted panel brightness quirk\n");
435793df
KP		 9148}
9149
b690e96c
JB		 9150struct intel_quirk {
9151 int device;
9152 int subsystem_vendor;
9153 int subsystem_device;
9154 void (*hook)(struct drm_device *dev);
9155};
9156
5f85f176
EE		 9157/* For systems that don't have a meaningful PCI subdevice/subvendor ID */
9158struct intel_dmi_quirk {
9159 void (*hook)(struct drm_device *dev);
9160 const struct dmi_system_id (*dmi_id_list)[];
9161};
9162
9163static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
9164{
9165 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
9166 return 1;
9167}
9168
9169static const struct intel_dmi_quirk intel_dmi_quirks[] = {
9170 {
9171 .dmi_id_list = &(const struct dmi_system_id[]) {
9172 {
9173 .callback = intel_dmi_reverse_brightness,
9174 .ident = "NCR Corporation",
9175 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
9176 DMI_MATCH(DMI_PRODUCT_NAME, ""),
9177 },
9178 },
9179 { } /* terminating entry */
9180 },
9181 .hook = quirk_invert_brightness,
9182 },
9183};
9184
c43b5634 9185static struct intel_quirk intel_quirks[] = {
b690e96c 9186 /* HP Mini needs pipe A force quirk (LP: #322104) */
0206e353 9187 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
b690e96c 9188
b690e96c
JB		 9189 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
9190 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
9191
b690e96c
JB		 9192 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
9193 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
9194
ccd0d36e 9195 /* 830/845 need to leave pipe A & dpll A up */
b690e96c 9196 { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
dcdaed6e 9197 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
435793df
KP		 9198
9199 /* Lenovo U160 cannot use SSC on LVDS */
9200 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
070d329a
MAS		 9201
9202 /* Sony Vaio Y cannot use SSC on LVDS */
9203 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
5a15ab5b
CE		 9204
9205 /* Acer Aspire 5734Z must invert backlight brightness */
9206 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
1ffff603
JN		 9207
9208 /* Acer/eMachines G725 */
9209 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
01e3a8fe
JN		 9210
9211 /* Acer/eMachines e725 */
9212 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
5559ecad
JN		 9213
9214 /* Acer/Packard Bell NCL20 */
9215 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
ac4199e0
DV		 9216
9217 /* Acer Aspire 4736Z */
9218 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
b690e96c
JB		 9219};
9220
9221static void intel_init_quirks(struct drm_device *dev)
9222{
9223 struct pci_dev *d = dev->pdev;
9224 int i;
9225
9226 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
9227 struct intel_quirk *q = &intel_quirks[i];
9228
9229 if (d->device == q->device &&
9230 (d->subsystem_vendor == q->subsystem_vendor ||
9231 q->subsystem_vendor == PCI_ANY_ID) &&
9232 (d->subsystem_device == q->subsystem_device ||
9233 q->subsystem_device == PCI_ANY_ID))
9234 q->hook(dev);
9235 }
5f85f176
EE		 9236 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
9237 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
9238 intel_dmi_quirks[i].hook(dev);
9239 }
b690e96c
JB		 9240}
9241
9cce37f4
JB		 9242/* Disable the VGA plane that we never use */
9243static void i915_disable_vga(struct drm_device *dev)
9244{
9245 struct drm_i915_private *dev_priv = dev->dev_private;
9246 u8 sr1;
766aa1c4 9247 u32 vga_reg = i915_vgacntrl_reg(dev);
9cce37f4
JB		 9248
9249 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
3fdcf431 9250 outb(SR01, VGA_SR_INDEX);
9cce37f4
JB		 9251 sr1 = inb(VGA_SR_DATA);
9252 outb(sr1 | 1<<5, VGA_SR_DATA);
9253 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
9254 udelay(300);
9255
9256 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
9257 POSTING_READ(vga_reg);
9258}
9259
f817586c
DV		 9260void intel_modeset_init_hw(struct drm_device *dev)
9261{
fa42e23c 9262 intel_init_power_well(dev);
0232e927 9263
a8f78b58
ED		 9264 intel_prepare_ddi(dev);
9265
f817586c
DV		 9266 intel_init_clock_gating(dev);
9267
79f5b2c7 9268 mutex_lock(&dev->struct_mutex);
8090c6b9 9269 intel_enable_gt_powersave(dev);
79f5b2c7 9270 mutex_unlock(&dev->struct_mutex);
f817586c
DV		 9271}
9272
79e53945
JB		 9273void intel_modeset_init(struct drm_device *dev)
9274{
652c393a 9275 struct drm_i915_private *dev_priv = dev->dev_private;
7f1f3851 9276 int i, j, ret;
79e53945
JB		 9277
9278 drm_mode_config_init(dev);
9279
9280 dev->mode_config.min_width = 0;
9281 dev->mode_config.min_height = 0;
9282
019d96cb
DA		 9283 dev->mode_config.preferred_depth = 24;
9284 dev->mode_config.prefer_shadow = 1;
9285
e6ecefaa 9286 dev->mode_config.funcs = &intel_mode_funcs;
79e53945 9287
b690e96c
JB		 9288 intel_init_quirks(dev);
9289
1fa61106
ED		 9290 intel_init_pm(dev);
9291
e3c74757
BW		 9292 if (INTEL_INFO(dev)->num_pipes == 0)
9293 return;
9294
e70236a8
JB		 9295 intel_init_display(dev);
9296
a6c45cf0
CW		 9297 if (IS_GEN2(dev)) {
9298 dev->mode_config.max_width = 2048;
9299 dev->mode_config.max_height = 2048;
9300 } else if (IS_GEN3(dev)) {
5e4d6fa7
KP		 9301 dev->mode_config.max_width = 4096;
9302 dev->mode_config.max_height = 4096;
79e53945 9303 } else {
a6c45cf0
CW		 9304 dev->mode_config.max_width = 8192;
9305 dev->mode_config.max_height = 8192;
79e53945 9306 }
5d4545ae 9307 dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
79e53945 9308
28c97730 9309 DRM_DEBUG_KMS("%d display pipe%s available.\n",
7eb552ae
BW		 9310 INTEL_INFO(dev)->num_pipes,
9311 INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
79e53945 9312
7eb552ae 9313 for (i = 0; i < INTEL_INFO(dev)->num_pipes; i++) {
79e53945 9314 intel_crtc_init(dev, i);
7f1f3851
JB		 9315 for (j = 0; j < dev_priv->num_plane; j++) {
9316 ret = intel_plane_init(dev, i, j);
9317 if (ret)
06da8da2
VS		 9318 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
9319 pipe_name(i), sprite_name(i, j), ret);
7f1f3851 9320 }
79e53945
JB		 9321 }
9322
79f689aa 9323 intel_cpu_pll_init(dev);
ee7b9f93
JB		 9324 intel_pch_pll_init(dev);
9325
9cce37f4
JB		 9326 /* Just disable it once at startup */
9327 i915_disable_vga(dev);
79e53945 9328 intel_setup_outputs(dev);
11be49eb
CW		 9329
9330 /* Just in case the BIOS is doing something questionable. */
9331 intel_disable_fbc(dev);
2c7111db
CW		 9332}
9333
24929352
DV		 9334static void
9335intel_connector_break_all_links(struct intel_connector *connector)
9336{
9337 connector->base.dpms = DRM_MODE_DPMS_OFF;
9338 connector->base.encoder = NULL;
9339 connector->encoder->connectors_active = false;
9340 connector->encoder->base.crtc = NULL;
9341}
9342
7fad798e
DV		 9343static void intel_enable_pipe_a(struct drm_device *dev)
9344{
9345 struct intel_connector *connector;
9346 struct drm_connector *crt = NULL;
9347 struct intel_load_detect_pipe load_detect_temp;
9348
9349 /* We can't just switch on the pipe A, we need to set things up with a
9350 * proper mode and output configuration. As a gross hack, enable pipe A
9351 * by enabling the load detect pipe once. */
9352 list_for_each_entry(connector,
9353 &dev->mode_config.connector_list,
9354 base.head) {
9355 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
9356 crt = &connector->base;
9357 break;
9358 }
9359 }
9360
9361 if (!crt)
9362 return;
9363
9364 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
9365 intel_release_load_detect_pipe(crt, &load_detect_temp);
9366
652c393a 9367
7fad798e
DV		 9368}
9369
fa555837
DV		 9370static bool
9371intel_check_plane_mapping(struct intel_crtc *crtc)
9372{
7eb552ae
BW		 9373 struct drm_device *dev = crtc->base.dev;
9374 struct drm_i915_private *dev_priv = dev->dev_private;
fa555837
DV		 9375 u32 reg, val;
9376
7eb552ae 9377 if (INTEL_INFO(dev)->num_pipes == 1)
fa555837
DV		 9378 return true;
9379
9380 reg = DSPCNTR(!crtc->plane);
9381 val = I915_READ(reg);
9382
9383 if ((val & DISPLAY_PLANE_ENABLE) &&
9384 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
9385 return false;
9386
9387 return true;
9388}
9389
24929352
DV		 9390static void intel_sanitize_crtc(struct intel_crtc *crtc)
9391{
9392 struct drm_device *dev = crtc->base.dev;
9393 struct drm_i915_private *dev_priv = dev->dev_private;
fa555837 9394 u32 reg;
24929352 9395
24929352 9396 /* Clear any frame start delays used for debugging left by the BIOS */
3b117c8f 9397 reg = PIPECONF(crtc->config.cpu_transcoder);
24929352
DV		 9398 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
9399
9400 /* We need to sanitize the plane -> pipe mapping first because this will
fa555837
DV		 9401 * disable the crtc (and hence change the state) if it is wrong. Note
9402 * that gen4+ has a fixed plane -> pipe mapping. */
9403 if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
24929352
DV		 9404 struct intel_connector *connector;
9405 bool plane;
9406
24929352
DV		 9407 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
9408 crtc->base.base.id);
9409
9410 /* Pipe has the wrong plane attached and the plane is active.
9411 * Temporarily change the plane mapping and disable everything
9412 * ... */
9413 plane = crtc->plane;
9414 crtc->plane = !plane;
9415 dev_priv->display.crtc_disable(&crtc->base);
9416 crtc->plane = plane;
9417
9418 /* ... and break all links. */
9419 list_for_each_entry(connector, &dev->mode_config.connector_list,
9420 base.head) {
9421 if (connector->encoder->base.crtc != &crtc->base)
9422 continue;
9423
9424 intel_connector_break_all_links(connector);
9425 }
9426
9427 WARN_ON(crtc->active);
9428 crtc->base.enabled = false;
9429 }
24929352 9430
7fad798e
DV		 9431 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
9432 crtc->pipe == PIPE_A && !crtc->active) {
9433 /* BIOS forgot to enable pipe A, this mostly happens after
9434 * resume. Force-enable the pipe to fix this, the update_dpms
9435 * call below we restore the pipe to the right state, but leave
9436 * the required bits on. */
9437 intel_enable_pipe_a(dev);
9438 }
9439
24929352
DV		 9440 /* Adjust the state of the output pipe according to whether we
9441 * have active connectors/encoders. */
9442 intel_crtc_update_dpms(&crtc->base);
9443
9444 if (crtc->active != crtc->base.enabled) {
9445 struct intel_encoder *encoder;
9446
9447 /* This can happen either due to bugs in the get_hw_state
9448 * functions or because the pipe is force-enabled due to the
9449 * pipe A quirk. */
9450 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
9451 crtc->base.base.id,
9452 crtc->base.enabled ? "enabled" : "disabled",
9453 crtc->active ? "enabled" : "disabled");
9454
9455 crtc->base.enabled = crtc->active;
9456
9457 /* Because we only establish the connector -> encoder ->
9458 * crtc links if something is active, this means the
9459 * crtc is now deactivated. Break the links. connector
9460 * -> encoder links are only establish when things are
9461 * actually up, hence no need to break them. */
9462 WARN_ON(crtc->active);
9463
9464 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
9465 WARN_ON(encoder->connectors_active);
9466 encoder->base.crtc = NULL;
9467 }
9468 }
9469}
9470
9471static void intel_sanitize_encoder(struct intel_encoder *encoder)
9472{
9473 struct intel_connector *connector;
9474 struct drm_device *dev = encoder->base.dev;
9475
9476 /* We need to check both for a crtc link (meaning that the
9477 * encoder is active and trying to read from a pipe) and the
9478 * pipe itself being active. */
9479 bool has_active_crtc = encoder->base.crtc &&
9480 to_intel_crtc(encoder->base.crtc)->active;
9481
9482 if (encoder->connectors_active && !has_active_crtc) {
9483 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
9484 encoder->base.base.id,
9485 drm_get_encoder_name(&encoder->base));
9486
9487 /* Connector is active, but has no active pipe. This is
9488 * fallout from our resume register restoring. Disable
9489 * the encoder manually again. */
9490 if (encoder->base.crtc) {
9491 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
9492 encoder->base.base.id,
9493 drm_get_encoder_name(&encoder->base));
9494 encoder->disable(encoder);
9495 }
9496
9497 /* Inconsistent output/port/pipe state happens presumably due to
9498 * a bug in one of the get_hw_state functions. Or someplace else
9499 * in our code, like the register restore mess on resume. Clamp
9500 * things to off as a safer default. */
9501 list_for_each_entry(connector,
9502 &dev->mode_config.connector_list,
9503 base.head) {
9504 if (connector->encoder != encoder)
9505 continue;
9506
9507 intel_connector_break_all_links(connector);
9508 }
9509 }
9510 /* Enabled encoders without active connectors will be fixed in
9511 * the crtc fixup. */
9512}
9513
44cec740 9514void i915_redisable_vga(struct drm_device *dev)
0fde901f
KM		 9515{
9516 struct drm_i915_private *dev_priv = dev->dev_private;
766aa1c4 9517 u32 vga_reg = i915_vgacntrl_reg(dev);
0fde901f
KM		 9518
9519 if (I915_READ(vga_reg) != VGA_DISP_DISABLE) {
9520 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
209d5211 9521 i915_disable_vga(dev);
0fde901f
KM		 9522 }
9523}
9524
24929352
DV		 9525/* Scan out the current hw modeset state, sanitizes it and maps it into the drm
9526 * and i915 state tracking structures. */
45e2b5f6
DV		 9527void intel_modeset_setup_hw_state(struct drm_device *dev,
9528 bool force_restore)
24929352
DV		 9529{
9530 struct drm_i915_private *dev_priv = dev->dev_private;
9531 enum pipe pipe;
9532 u32 tmp;
b5644d05 9533 struct drm_plane *plane;
24929352
DV		 9534 struct intel_crtc *crtc;
9535 struct intel_encoder *encoder;
9536 struct intel_connector *connector;
9537
affa9354 9538 if (HAS_DDI(dev)) {
e28d54cb
PZ		 9539 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
9540
9541 if (tmp & TRANS_DDI_FUNC_ENABLE) {
9542 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
9543 case TRANS_DDI_EDP_INPUT_A_ON:
9544 case TRANS_DDI_EDP_INPUT_A_ONOFF:
9545 pipe = PIPE_A;
9546 break;
9547 case TRANS_DDI_EDP_INPUT_B_ONOFF:
9548 pipe = PIPE_B;
9549 break;
9550 case TRANS_DDI_EDP_INPUT_C_ONOFF:
9551 pipe = PIPE_C;
9552 break;
aaa148ec
DL		 9553 default:
9554 /* A bogus value has been programmed, disable
9555 * the transcoder */
9556 WARN(1, "Bogus eDP source %08x\n", tmp);
9557 intel_ddi_disable_transcoder_func(dev_priv,
9558 TRANSCODER_EDP);
9559 goto setup_pipes;
e28d54cb
PZ		 9560 }
9561
9562 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
3b117c8f 9563 crtc->config.cpu_transcoder = TRANSCODER_EDP;
e28d54cb
PZ		 9564
9565 DRM_DEBUG_KMS("Pipe %c using transcoder EDP\n",
9566 pipe_name(pipe));
9567 }
9568 }
9569
aaa148ec 9570setup_pipes:
0e8ffe1b
DV		 9571 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9572 base.head) {
3b117c8f 9573 enum transcoder tmp = crtc->config.cpu_transcoder;
88adfff1 9574 memset(&crtc->config, 0, sizeof(crtc->config));
3b117c8f
DV		 9575 crtc->config.cpu_transcoder = tmp;
9576
0e8ffe1b
DV		 9577 crtc->active = dev_priv->display.get_pipe_config(crtc,
9578 &crtc->config);
24929352
DV		 9579
9580 crtc->base.enabled = crtc->active;
9581
9582 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
9583 crtc->base.base.id,
9584 crtc->active ? "enabled" : "disabled");
9585 }
9586
affa9354 9587 if (HAS_DDI(dev))
6441ab5f
PZ		 9588 intel_ddi_setup_hw_pll_state(dev);
9589
24929352
DV		 9590 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9591 base.head) {
9592 pipe = 0;
9593
9594 if (encoder->get_hw_state(encoder, &pipe)) {
9595 encoder->base.crtc =
9596 dev_priv->pipe_to_crtc_mapping[pipe];
9597 } else {
9598 encoder->base.crtc = NULL;
9599 }
9600
9601 encoder->connectors_active = false;
9602 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
9603 encoder->base.base.id,
9604 drm_get_encoder_name(&encoder->base),
9605 encoder->base.crtc ? "enabled" : "disabled",
9606 pipe);
9607 }
9608
9609 list_for_each_entry(connector, &dev->mode_config.connector_list,
9610 base.head) {
9611 if (connector->get_hw_state(connector)) {
9612 connector->base.dpms = DRM_MODE_DPMS_ON;
9613 connector->encoder->connectors_active = true;
9614 connector->base.encoder = &connector->encoder->base;
9615 } else {
9616 connector->base.dpms = DRM_MODE_DPMS_OFF;
9617 connector->base.encoder = NULL;
9618 }
9619 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
9620 connector->base.base.id,
9621 drm_get_connector_name(&connector->base),
9622 connector->base.encoder ? "enabled" : "disabled");
9623 }
9624
9625 /* HW state is read out, now we need to sanitize this mess. */
9626 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9627 base.head) {
9628 intel_sanitize_encoder(encoder);
9629 }
9630
9631 for_each_pipe(pipe) {
9632 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
9633 intel_sanitize_crtc(crtc);
9634 }
9a935856 9635
45e2b5f6 9636 if (force_restore) {
f30da187
DV		 9637 /*
9638 * We need to use raw interfaces for restoring state to avoid
9639 * checking (bogus) intermediate states.
9640 */
45e2b5f6 9641 for_each_pipe(pipe) {
b5644d05
JB		 9642 struct drm_crtc *crtc =
9643 dev_priv->pipe_to_crtc_mapping[pipe];
f30da187
DV		 9644
9645 __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
9646 crtc->fb);
45e2b5f6 9647 }
b5644d05
JB		 9648 list_for_each_entry(plane, &dev->mode_config.plane_list, head)
9649 intel_plane_restore(plane);
0fde901f
KM		 9650
9651 i915_redisable_vga(dev);
45e2b5f6
DV		 9652 } else {
9653 intel_modeset_update_staged_output_state(dev);
9654 }
8af6cf88
DV		 9655
9656 intel_modeset_check_state(dev);
2e938892
DV		 9657
9658 drm_mode_config_reset(dev);
2c7111db
CW		 9659}
9660
9661void intel_modeset_gem_init(struct drm_device *dev)
9662{
1833b134 9663 intel_modeset_init_hw(dev);
02e792fb
DV		 9664
9665 intel_setup_overlay(dev);
24929352 9666
45e2b5f6 9667 intel_modeset_setup_hw_state(dev, false);
79e53945
JB		 9668}
9669
9670void intel_modeset_cleanup(struct drm_device *dev)
9671{
652c393a
JB		 9672 struct drm_i915_private *dev_priv = dev->dev_private;
9673 struct drm_crtc *crtc;
9674 struct intel_crtc *intel_crtc;
9675
fd0c0642
DV		 9676 /*
9677 * Interrupts and polling as the first thing to avoid creating havoc.
9678 * Too much stuff here (turning of rps, connectors, ...) would
9679 * experience fancy races otherwise.
9680 */
9681 drm_irq_uninstall(dev);
9682 cancel_work_sync(&dev_priv->hotplug_work);
9683 /*
9684 * Due to the hpd irq storm handling the hotplug work can re-arm the
9685 * poll handlers. Hence disable polling after hpd handling is shut down.
9686 */
f87ea761 9687 drm_kms_helper_poll_fini(dev);
fd0c0642 9688
652c393a
JB		 9689 mutex_lock(&dev->struct_mutex);
9690
723bfd70
JB		 9691 intel_unregister_dsm_handler();
9692
652c393a
JB		 9693 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
9694 /* Skip inactive CRTCs */
9695 if (!crtc->fb)
9696 continue;
9697
9698 intel_crtc = to_intel_crtc(crtc);
3dec0095 9699 intel_increase_pllclock(crtc);
652c393a
JB		 9700 }
9701
973d04f9 9702 intel_disable_fbc(dev);
e70236a8 9703
8090c6b9 9704 intel_disable_gt_powersave(dev);
0cdab21f 9705
930ebb46
DV		 9706 ironlake_teardown_rc6(dev);
9707
69341a5e
KH		 9708 mutex_unlock(&dev->struct_mutex);
9709
1630fe75
CW		 9710 /* flush any delayed tasks or pending work */
9711 flush_scheduled_work();
9712
dc652f90
JN		 9713 /* destroy backlight, if any, before the connectors */
9714 intel_panel_destroy_backlight(dev);
9715
79e53945 9716 drm_mode_config_cleanup(dev);
4d7bb011
DV		 9717
9718 intel_cleanup_overlay(dev);
79e53945
JB		 9719}
9720
f1c79df3
ZW		 9721/*
9722 * Return which encoder is currently attached for connector.
9723 */
df0e9248 9724struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
79e53945 9725{
df0e9248
CW		 9726 return &intel_attached_encoder(connector)->base;
9727}
f1c79df3 9728
df0e9248
CW		 9729void intel_connector_attach_encoder(struct intel_connector *connector,
9730 struct intel_encoder *encoder)
9731{
9732 connector->encoder = encoder;
9733 drm_mode_connector_attach_encoder(&connector->base,
9734 &encoder->base);
79e53945 9735}
28d52043
DA		 9736
9737/*
9738 * set vga decode state - true == enable VGA decode
9739 */
9740int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
9741{
9742 struct drm_i915_private *dev_priv = dev->dev_private;
9743 u16 gmch_ctrl;
9744
9745 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
9746 if (state)
9747 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
9748 else
9749 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
9750 pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
9751 return 0;
9752}
c4a1d9e4
CW		 9753
9754#ifdef CONFIG_DEBUG_FS
9755#include <linux/seq_file.h>
9756
9757struct intel_display_error_state {
9758 struct intel_cursor_error_state {
9759 u32 control;
9760 u32 position;
9761 u32 base;
9762 u32 size;
52331309 9763 } cursor[I915_MAX_PIPES];
c4a1d9e4
CW		 9764
9765 struct intel_pipe_error_state {
9766 u32 conf;
9767 u32 source;
9768
9769 u32 htotal;
9770 u32 hblank;
9771 u32 hsync;
9772 u32 vtotal;
9773 u32 vblank;
9774 u32 vsync;
52331309 9775 } pipe[I915_MAX_PIPES];
c4a1d9e4
CW		 9776
9777 struct intel_plane_error_state {
9778 u32 control;
9779 u32 stride;
9780 u32 size;
9781 u32 pos;
9782 u32 addr;
9783 u32 surface;
9784 u32 tile_offset;
52331309 9785 } plane[I915_MAX_PIPES];
c4a1d9e4
CW		 9786};
9787
9788struct intel_display_error_state *
9789intel_display_capture_error_state(struct drm_device *dev)
9790{
0206e353 9791 drm_i915_private_t *dev_priv = dev->dev_private;
c4a1d9e4 9792 struct intel_display_error_state *error;
702e7a56 9793 enum transcoder cpu_transcoder;
c4a1d9e4
CW		 9794 int i;
9795
9796 error = kmalloc(sizeof(*error), GFP_ATOMIC);
9797 if (error == NULL)
9798 return NULL;
9799
52331309 9800 for_each_pipe(i) {
702e7a56
PZ		 9801 cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, i);
9802
a18c4c3d
PZ		 9803 if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
9804 error->cursor[i].control = I915_READ(CURCNTR(i));
9805 error->cursor[i].position = I915_READ(CURPOS(i));
9806 error->cursor[i].base = I915_READ(CURBASE(i));
9807 } else {
9808 error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
9809 error->cursor[i].position = I915_READ(CURPOS_IVB(i));
9810 error->cursor[i].base = I915_READ(CURBASE_IVB(i));
9811 }
c4a1d9e4
CW		 9812
9813 error->plane[i].control = I915_READ(DSPCNTR(i));
9814 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
80ca378b 9815 if (INTEL_INFO(dev)->gen <= 3) {
51889b35 9816 error->plane[i].size = I915_READ(DSPSIZE(i));
80ca378b
PZ		 9817 error->plane[i].pos = I915_READ(DSPPOS(i));
9818 }
ca291363
PZ		 9819 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
9820 error->plane[i].addr = I915_READ(DSPADDR(i));
c4a1d9e4
CW		 9821 if (INTEL_INFO(dev)->gen >= 4) {
9822 error->plane[i].surface = I915_READ(DSPSURF(i));
9823 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
9824 }
9825
702e7a56 9826 error->pipe[i].conf = I915_READ(PIPECONF(cpu_transcoder));
c4a1d9e4 9827 error->pipe[i].source = I915_READ(PIPESRC(i));
fe2b8f9d
PZ		 9828 error->pipe[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
9829 error->pipe[i].hblank = I915_READ(HBLANK(cpu_transcoder));
9830 error->pipe[i].hsync = I915_READ(HSYNC(cpu_transcoder));
9831 error->pipe[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
9832 error->pipe[i].vblank = I915_READ(VBLANK(cpu_transcoder));
9833 error->pipe[i].vsync = I915_READ(VSYNC(cpu_transcoder));
c4a1d9e4
CW		 9834 }
9835
9836 return error;
9837}
9838
9839void
9840intel_display_print_error_state(struct seq_file *m,
9841 struct drm_device *dev,
9842 struct intel_display_error_state *error)
9843{
9844 int i;
9845
7eb552ae 9846 seq_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
52331309 9847 for_each_pipe(i) {
c4a1d9e4
CW		 9848 seq_printf(m, "Pipe [%d]:\n", i);
9849 seq_printf(m, " CONF: %08x\n", error->pipe[i].conf);
9850 seq_printf(m, " SRC: %08x\n", error->pipe[i].source);
9851 seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal);
9852 seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank);
9853 seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync);
9854 seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal);
9855 seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank);
9856 seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync);
9857
9858 seq_printf(m, "Plane [%d]:\n", i);
9859 seq_printf(m, " CNTR: %08x\n", error->plane[i].control);
9860 seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
80ca378b 9861 if (INTEL_INFO(dev)->gen <= 3) {
51889b35 9862 seq_printf(m, " SIZE: %08x\n", error->plane[i].size);
80ca378b
PZ		 9863 seq_printf(m, " POS: %08x\n", error->plane[i].pos);
9864 }
4b71a570 9865 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
ca291363 9866 seq_printf(m, " ADDR: %08x\n", error->plane[i].addr);
c4a1d9e4
CW		 9867 if (INTEL_INFO(dev)->gen >= 4) {
9868 seq_printf(m, " SURF: %08x\n", error->plane[i].surface);
9869 seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
9870 }
9871
9872 seq_printf(m, "Cursor [%d]:\n", i);
9873 seq_printf(m, " CNTR: %08x\n", error->cursor[i].control);
9874 seq_printf(m, " POS: %08x\n", error->cursor[i].position);
9875 seq_printf(m, " BASE: %08x\n", error->cursor[i].base);
9876 }
9877}
9878#endif
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