2 * Copyright © 2006-2007 Intel Corporation
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:
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
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.
24 * Eric Anholt <eric@anholt.net>
27 #include <linux/dmi.h>
28 #include <linux/module.h>
29 #include <linux/input.h>
30 #include <linux/i2c.h>
31 #include <linux/kernel.h>
32 #include <linux/slab.h>
33 #include <linux/vgaarb.h>
34 #include <drm/drm_edid.h>
36 #include "intel_drv.h"
37 #include <drm/i915_drm.h>
39 #include "i915_trace.h"
40 #include <drm/drm_dp_helper.h>
41 #include <drm/drm_crtc_helper.h>
42 #include <linux/dma_remapping.h>
44 bool intel_pipe_has_type(struct drm_crtc *crtc, int type);
45 static void intel_increase_pllclock(struct drm_crtc *crtc);
46 static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on);
57 #define INTEL_P2_NUM 2
58 typedef struct intel_limit intel_limit_t;
60 intel_range_t dot, vco, n, m, m1, m2, p, p1;
63 * find_pll() - Find the best values for the PLL
64 * @limit: limits for the PLL
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
73 * Returns true on success, false on failure.
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);
83 #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */
86 intel_pch_rawclk(struct drm_device *dev)
88 struct drm_i915_private *dev_priv = dev->dev_private;
90 WARN_ON(!HAS_PCH_SPLIT(dev));
92 return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK;
96 intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
97 int target, int refclk, intel_clock_t *match_clock,
98 intel_clock_t *best_clock);
100 intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
101 int target, int refclk, intel_clock_t *match_clock,
102 intel_clock_t *best_clock);
105 intel_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);
109 static inline u32 /* units of 100MHz */
110 intel_fdi_link_freq(struct drm_device *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;
119 static const intel_limit_t intel_limits_i8xx_dvo = {
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 },
128 .p2 = { .dot_limit = 165000,
129 .p2_slow = 4, .p2_fast = 2 },
130 .find_pll = intel_find_best_PLL,
133 static const intel_limit_t intel_limits_i8xx_lvds = {
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 },
142 .p2 = { .dot_limit = 165000,
143 .p2_slow = 14, .p2_fast = 7 },
144 .find_pll = intel_find_best_PLL,
147 static const intel_limit_t intel_limits_i9xx_sdvo = {
148 .dot = { .min = 20000, .max = 400000 },
149 .vco = { .min = 1400000, .max = 2800000 },
150 .n = { .min = 1, .max = 6 },
151 .m = { .min = 70, .max = 120 },
152 .m1 = { .min = 8, .max = 18 },
153 .m2 = { .min = 3, .max = 7 },
154 .p = { .min = 5, .max = 80 },
155 .p1 = { .min = 1, .max = 8 },
156 .p2 = { .dot_limit = 200000,
157 .p2_slow = 10, .p2_fast = 5 },
158 .find_pll = intel_find_best_PLL,
161 static const intel_limit_t intel_limits_i9xx_lvds = {
162 .dot = { .min = 20000, .max = 400000 },
163 .vco = { .min = 1400000, .max = 2800000 },
164 .n = { .min = 1, .max = 6 },
165 .m = { .min = 70, .max = 120 },
166 .m1 = { .min = 8, .max = 18 },
167 .m2 = { .min = 3, .max = 7 },
168 .p = { .min = 7, .max = 98 },
169 .p1 = { .min = 1, .max = 8 },
170 .p2 = { .dot_limit = 112000,
171 .p2_slow = 14, .p2_fast = 7 },
172 .find_pll = intel_find_best_PLL,
176 static const intel_limit_t intel_limits_g4x_sdvo = {
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,
189 .find_pll = intel_g4x_find_best_PLL,
192 static const intel_limit_t intel_limits_g4x_hdmi = {
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 },
203 .find_pll = intel_g4x_find_best_PLL,
206 static const intel_limit_t intel_limits_g4x_single_channel_lvds = {
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
218 .find_pll = intel_g4x_find_best_PLL,
221 static const intel_limit_t intel_limits_g4x_dual_channel_lvds = {
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
233 .find_pll = intel_g4x_find_best_PLL,
236 static const intel_limit_t intel_limits_pineview_sdvo = {
237 .dot = { .min = 20000, .max = 400000},
238 .vco = { .min = 1700000, .max = 3500000 },
239 /* Pineview's Ncounter is a ring counter */
240 .n = { .min = 3, .max = 6 },
241 .m = { .min = 2, .max = 256 },
242 /* Pineview only has one combined m divider, which we treat as m2. */
243 .m1 = { .min = 0, .max = 0 },
244 .m2 = { .min = 0, .max = 254 },
245 .p = { .min = 5, .max = 80 },
246 .p1 = { .min = 1, .max = 8 },
247 .p2 = { .dot_limit = 200000,
248 .p2_slow = 10, .p2_fast = 5 },
249 .find_pll = intel_find_best_PLL,
252 static const intel_limit_t intel_limits_pineview_lvds = {
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 },
261 .p2 = { .dot_limit = 112000,
262 .p2_slow = 14, .p2_fast = 14 },
263 .find_pll = intel_find_best_PLL,
266 /* Ironlake / Sandybridge
268 * We calculate clock using (register_value + 2) for N/M1/M2, so here
269 * the range value for them is (actual_value - 2).
271 static const intel_limit_t intel_limits_ironlake_dac = {
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 },
282 .find_pll = intel_g4x_find_best_PLL,
285 static const intel_limit_t intel_limits_ironlake_single_lvds = {
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 },
296 .find_pll = intel_g4x_find_best_PLL,
299 static const intel_limit_t intel_limits_ironlake_dual_lvds = {
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 },
310 .find_pll = intel_g4x_find_best_PLL,
313 /* LVDS 100mhz refclk limits. */
314 static const intel_limit_t intel_limits_ironlake_single_lvds_100m = {
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 },
322 .p1 = { .min = 2, .max = 8 },
323 .p2 = { .dot_limit = 225000,
324 .p2_slow = 14, .p2_fast = 14 },
325 .find_pll = intel_g4x_find_best_PLL,
328 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = {
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 },
336 .p1 = { .min = 2, .max = 6 },
337 .p2 = { .dot_limit = 225000,
338 .p2_slow = 7, .p2_fast = 7 },
339 .find_pll = intel_g4x_find_best_PLL,
342 static 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 },
350 .p1 = { .min = 1, .max = 3 },
351 .p2 = { .dot_limit = 270000,
352 .p2_slow = 2, .p2_fast = 20 },
353 .find_pll = intel_vlv_find_best_pll,
356 static const intel_limit_t intel_limits_vlv_hdmi = {
357 .dot = { .min = 25000, .max = 270000 },
358 .vco = { .min = 4000000, .max = 6000000 },
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,
370 static const intel_limit_t intel_limits_vlv_dp = {
371 .dot = { .min = 25000, .max = 270000 },
372 .vco = { .min = 4000000, .max = 6000000 },
373 .n = { .min = 1, .max = 7 },
374 .m = { .min = 22, .max = 450 },
375 .m1 = { .min = 2, .max = 3 },
376 .m2 = { .min = 11, .max = 156 },
377 .p = { .min = 10, .max = 30 },
378 .p1 = { .min = 1, .max = 3 },
379 .p2 = { .dot_limit = 270000,
380 .p2_slow = 2, .p2_fast = 20 },
381 .find_pll = intel_vlv_find_best_pll,
384 u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg)
386 WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
388 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) {
389 DRM_ERROR("DPIO idle wait timed out\n");
393 I915_WRITE(DPIO_REG, reg);
394 I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_READ | DPIO_PORTID |
396 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) {
397 DRM_ERROR("DPIO read wait timed out\n");
401 return I915_READ(DPIO_DATA);
404 void intel_dpio_write(struct drm_i915_private *dev_priv, int reg, u32 val)
406 WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
408 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) {
409 DRM_ERROR("DPIO idle wait timed out\n");
413 I915_WRITE(DPIO_DATA, val);
414 I915_WRITE(DPIO_REG, reg);
415 I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_WRITE | DPIO_PORTID |
417 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100))
418 DRM_ERROR("DPIO write wait timed out\n");
421 static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
424 struct drm_device *dev = crtc->dev;
425 const intel_limit_t *limit;
427 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
428 if (intel_is_dual_link_lvds(dev)) {
429 if (refclk == 100000)
430 limit = &intel_limits_ironlake_dual_lvds_100m;
432 limit = &intel_limits_ironlake_dual_lvds;
434 if (refclk == 100000)
435 limit = &intel_limits_ironlake_single_lvds_100m;
437 limit = &intel_limits_ironlake_single_lvds;
440 limit = &intel_limits_ironlake_dac;
445 static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
447 struct drm_device *dev = crtc->dev;
448 const intel_limit_t *limit;
450 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
451 if (intel_is_dual_link_lvds(dev))
452 limit = &intel_limits_g4x_dual_channel_lvds;
454 limit = &intel_limits_g4x_single_channel_lvds;
455 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
456 intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
457 limit = &intel_limits_g4x_hdmi;
458 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
459 limit = &intel_limits_g4x_sdvo;
460 } else /* The option is for other outputs */
461 limit = &intel_limits_i9xx_sdvo;
466 static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
468 struct drm_device *dev = crtc->dev;
469 const intel_limit_t *limit;
471 if (HAS_PCH_SPLIT(dev))
472 limit = intel_ironlake_limit(crtc, refclk);
473 else if (IS_G4X(dev)) {
474 limit = intel_g4x_limit(crtc);
475 } else if (IS_PINEVIEW(dev)) {
476 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
477 limit = &intel_limits_pineview_lvds;
479 limit = &intel_limits_pineview_sdvo;
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;
486 limit = &intel_limits_vlv_dp;
487 } else if (!IS_GEN2(dev)) {
488 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
489 limit = &intel_limits_i9xx_lvds;
491 limit = &intel_limits_i9xx_sdvo;
493 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
494 limit = &intel_limits_i8xx_lvds;
496 limit = &intel_limits_i8xx_dvo;
501 /* m1 is reserved as 0 in Pineview, n is a ring counter */
502 static void pineview_clock(int refclk, intel_clock_t *clock)
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;
510 static uint32_t i9xx_dpll_compute_m(struct dpll *dpll)
512 return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
515 static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock)
517 if (IS_PINEVIEW(dev)) {
518 pineview_clock(refclk, clock);
521 clock->m = i9xx_dpll_compute_m(clock);
522 clock->p = clock->p1 * clock->p2;
523 clock->vco = refclk * clock->m / (clock->n + 2);
524 clock->dot = clock->vco / clock->p;
528 * Returns whether any output on the specified pipe is of the specified type
530 bool intel_pipe_has_type(struct drm_crtc *crtc, int type)
532 struct drm_device *dev = crtc->dev;
533 struct intel_encoder *encoder;
535 for_each_encoder_on_crtc(dev, crtc, encoder)
536 if (encoder->type == type)
542 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
544 * Returns whether the given set of divisors are valid for a given refclk with
545 * the given connectors.
548 static bool intel_PLL_is_valid(struct drm_device *dev,
549 const intel_limit_t *limit,
550 const intel_clock_t *clock)
552 if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
553 INTELPllInvalid("p1 out of range\n");
554 if (clock->p < limit->p.min || limit->p.max < clock->p)
555 INTELPllInvalid("p out of range\n");
556 if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
557 INTELPllInvalid("m2 out of range\n");
558 if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
559 INTELPllInvalid("m1 out of range\n");
560 if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev))
561 INTELPllInvalid("m1 <= m2\n");
562 if (clock->m < limit->m.min || limit->m.max < clock->m)
563 INTELPllInvalid("m out of range\n");
564 if (clock->n < limit->n.min || limit->n.max < clock->n)
565 INTELPllInvalid("n out of range\n");
566 if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
567 INTELPllInvalid("vco out of range\n");
568 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
569 * connector, etc., rather than just a single range.
571 if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
572 INTELPllInvalid("dot out of range\n");
578 intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
579 int target, int refclk, intel_clock_t *match_clock,
580 intel_clock_t *best_clock)
583 struct drm_device *dev = crtc->dev;
587 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
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.
593 if (intel_is_dual_link_lvds(dev))
594 clock.p2 = limit->p2.p2_fast;
596 clock.p2 = limit->p2.p2_slow;
598 if (target < limit->p2.dot_limit)
599 clock.p2 = limit->p2.p2_slow;
601 clock.p2 = limit->p2.p2_fast;
604 memset(best_clock, 0, sizeof(*best_clock));
606 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
608 for (clock.m2 = limit->m2.min;
609 clock.m2 <= limit->m2.max; clock.m2++) {
610 /* m1 is always 0 in Pineview */
611 if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev))
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++) {
619 intel_clock(dev, refclk, &clock);
620 if (!intel_PLL_is_valid(dev, limit,
624 clock.p != match_clock->p)
627 this_err = abs(clock.dot - target);
628 if (this_err < err) {
637 return (err != target);
641 intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
642 int target, int refclk, intel_clock_t *match_clock,
643 intel_clock_t *best_clock)
645 struct drm_device *dev = crtc->dev;
649 /* approximately equals target * 0.00585 */
650 int err_most = (target >> 8) + (target >> 9);
653 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
656 if (HAS_PCH_SPLIT(dev))
660 if (intel_is_dual_link_lvds(dev))
661 clock.p2 = limit->p2.p2_fast;
663 clock.p2 = limit->p2.p2_slow;
665 if (target < limit->p2.dot_limit)
666 clock.p2 = limit->p2.p2_slow;
668 clock.p2 = limit->p2.p2_fast;
671 memset(best_clock, 0, sizeof(*best_clock));
672 max_n = limit->n.max;
673 /* based on hardware requirement, prefer smaller n to precision */
674 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
675 /* based on hardware requirement, prefere larger m1,m2 */
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--) {
684 intel_clock(dev, refclk, &clock);
685 if (!intel_PLL_is_valid(dev, limit,
689 this_err = abs(clock.dot - target);
690 if (this_err < err_most) {
704 intel_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)
708 u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2;
710 u32 updrate, minupdate, fracbits, p;
711 unsigned long bestppm, ppm, absppm;
715 dotclk = target * 1000;
718 fastclk = dotclk / (2*100);
722 n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0;
723 bestm1 = bestm2 = bestp1 = bestp2 = 0;
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--) {
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));
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))) {
746 if (absppm < bestppm - 10) {
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;
772 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
775 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
776 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
778 return intel_crtc->config.cpu_transcoder;
781 static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe)
783 struct drm_i915_private *dev_priv = dev->dev_private;
784 u32 frame, frame_reg = PIPEFRAME(pipe);
786 frame = I915_READ(frame_reg);
788 if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50))
789 DRM_DEBUG_KMS("vblank wait timed out\n");
793 * intel_wait_for_vblank - wait for vblank on a given pipe
795 * @pipe: pipe to wait for
797 * Wait for vblank to occur on a given pipe. Needed for various bits of
800 void intel_wait_for_vblank(struct drm_device *dev, int pipe)
802 struct drm_i915_private *dev_priv = dev->dev_private;
803 int pipestat_reg = PIPESTAT(pipe);
805 if (INTEL_INFO(dev)->gen >= 5) {
806 ironlake_wait_for_vblank(dev, pipe);
810 /* Clear existing vblank status. Note this will clear any other
811 * sticky status fields as well.
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
820 * Currently, the result of us stealing a vblank from the irq
821 * handler is that a single frame will be skipped during swapbuffers.
823 I915_WRITE(pipestat_reg,
824 I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS);
826 /* Wait for vblank interrupt bit to set */
827 if (wait_for(I915_READ(pipestat_reg) &
828 PIPE_VBLANK_INTERRUPT_STATUS,
830 DRM_DEBUG_KMS("vblank wait timed out\n");
834 * intel_wait_for_pipe_off - wait for pipe to turn off
836 * @pipe: pipe to wait for
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.
843 * wait for the pipe register state bit to turn off
846 * wait for the display line value to settle (it usually
847 * ends up stopping at the start of the next frame).
850 void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
852 struct drm_i915_private *dev_priv = dev->dev_private;
853 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
856 if (INTEL_INFO(dev)->gen >= 4) {
857 int reg = PIPECONF(cpu_transcoder);
859 /* Wait for the Pipe State to go off */
860 if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0,
862 WARN(1, "pipe_off wait timed out\n");
864 u32 last_line, line_mask;
865 int reg = PIPEDSL(pipe);
866 unsigned long timeout = jiffies + msecs_to_jiffies(100);
869 line_mask = DSL_LINEMASK_GEN2;
871 line_mask = DSL_LINEMASK_GEN3;
873 /* Wait for the display line to settle */
875 last_line = I915_READ(reg) & line_mask;
877 } while (((I915_READ(reg) & line_mask) != last_line) &&
878 time_after(timeout, jiffies));
879 if (time_after(jiffies, timeout))
880 WARN(1, "pipe_off wait timed out\n");
885 * ibx_digital_port_connected - is the specified port connected?
886 * @dev_priv: i915 private structure
887 * @port: the port to test
889 * Returns true if @port is connected, false otherwise.
891 bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
892 struct intel_digital_port *port)
896 if (HAS_PCH_IBX(dev_priv->dev)) {
899 bit = SDE_PORTB_HOTPLUG;
902 bit = SDE_PORTC_HOTPLUG;
905 bit = SDE_PORTD_HOTPLUG;
913 bit = SDE_PORTB_HOTPLUG_CPT;
916 bit = SDE_PORTC_HOTPLUG_CPT;
919 bit = SDE_PORTD_HOTPLUG_CPT;
926 return I915_READ(SDEISR) & bit;
929 static const char *state_string(bool enabled)
931 return enabled ? "on" : "off";
934 /* Only for pre-ILK configs */
935 static void assert_pll(struct drm_i915_private *dev_priv,
936 enum pipe pipe, bool state)
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));
949 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
950 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
953 static void assert_pch_pll(struct drm_i915_private *dev_priv,
954 struct intel_pch_pll *pll,
955 struct intel_crtc *crtc,
961 if (HAS_PCH_LPT(dev_priv->dev)) {
962 DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
967 "asserting PCH PLL %s with no PLL\n", state_string(state)))
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);
976 /* Make sure the selected PLL is correctly attached to the transcoder */
977 if (crtc && HAS_PCH_CPT(dev_priv->dev)) {
980 pch_dpll = I915_READ(PCH_DPLL_SEL);
981 cur_state = pll->pll_reg == _PCH_DPLL_B;
982 if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state,
983 "PLL[%d] not attached to this transcoder %c: %08x\n",
984 cur_state, pipe_name(crtc->pipe), pch_dpll)) {
985 cur_state = !!(val >> (4*crtc->pipe + 3));
986 WARN(cur_state != state,
987 "PLL[%d] not %s on this transcoder %c: %08x\n",
988 pll->pll_reg == _PCH_DPLL_B,
990 pipe_name(crtc->pipe),
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)
998 static void assert_fdi_tx(struct drm_i915_private *dev_priv,
999 enum pipe pipe, bool state)
1004 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1007 if (HAS_DDI(dev_priv->dev)) {
1008 /* DDI does not have a specific FDI_TX register */
1009 reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
1010 val = I915_READ(reg);
1011 cur_state = !!(val & TRANS_DDI_FUNC_ENABLE);
1013 reg = FDI_TX_CTL(pipe);
1014 val = I915_READ(reg);
1015 cur_state = !!(val & FDI_TX_ENABLE);
1017 WARN(cur_state != state,
1018 "FDI TX state assertion failure (expected %s, current %s)\n",
1019 state_string(state), state_string(cur_state));
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)
1024 static void assert_fdi_rx(struct drm_i915_private *dev_priv,
1025 enum pipe pipe, bool state)
1031 reg = FDI_RX_CTL(pipe);
1032 val = I915_READ(reg);
1033 cur_state = !!(val & FDI_RX_ENABLE);
1034 WARN(cur_state != state,
1035 "FDI RX state assertion failure (expected %s, current %s)\n",
1036 state_string(state), state_string(cur_state));
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)
1041 static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
1047 /* ILK FDI PLL is always enabled */
1048 if (dev_priv->info->gen == 5)
1051 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1052 if (HAS_DDI(dev_priv->dev))
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");
1060 static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv,
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");
1071 static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1074 int pp_reg, lvds_reg;
1076 enum pipe panel_pipe = PIPE_A;
1079 if (HAS_PCH_SPLIT(dev_priv->dev)) {
1080 pp_reg = PCH_PP_CONTROL;
1081 lvds_reg = PCH_LVDS;
1083 pp_reg = PP_CONTROL;
1087 val = I915_READ(pp_reg);
1088 if (!(val & PANEL_POWER_ON) ||
1089 ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS))
1092 if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT)
1093 panel_pipe = PIPE_B;
1095 WARN(panel_pipe == pipe && locked,
1096 "panel assertion failure, pipe %c regs locked\n",
1100 void assert_pipe(struct drm_i915_private *dev_priv,
1101 enum pipe pipe, bool state)
1106 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1109 /* if we need the pipe A quirk it must be always on */
1110 if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
1113 if (!intel_using_power_well(dev_priv->dev) &&
1114 cpu_transcoder != TRANSCODER_EDP) {
1117 reg = PIPECONF(cpu_transcoder);
1118 val = I915_READ(reg);
1119 cur_state = !!(val & PIPECONF_ENABLE);
1122 WARN(cur_state != state,
1123 "pipe %c assertion failure (expected %s, current %s)\n",
1124 pipe_name(pipe), state_string(state), state_string(cur_state));
1127 static void assert_plane(struct drm_i915_private *dev_priv,
1128 enum plane plane, bool state)
1134 reg = DSPCNTR(plane);
1135 val = I915_READ(reg);
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));
1142 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1143 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1145 static void assert_planes_disabled(struct drm_i915_private *dev_priv,
1152 /* Planes are fixed to pipes on ILK+ */
1153 if (HAS_PCH_SPLIT(dev_priv->dev) || IS_VALLEYVIEW(dev_priv->dev)) {
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",
1162 /* Need to check both planes against the pipe */
1163 for (i = 0; i < 2; 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,
1169 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1170 plane_name(i), pipe_name(pipe));
1174 static void assert_sprites_disabled(struct drm_i915_private *dev_priv,
1180 if (!IS_VALLEYVIEW(dev_priv->dev))
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),
1188 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1189 sprite_name(pipe, i), pipe_name(pipe));
1193 static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
1198 if (HAS_PCH_LPT(dev_priv->dev)) {
1199 DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n");
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");
1209 static void assert_transcoder_disabled(struct drm_i915_private *dev_priv,
1216 reg = TRANSCONF(pipe);
1217 val = I915_READ(reg);
1218 enabled = !!(val & TRANS_ENABLE);
1220 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1224 static bool dp_pipe_enabled(struct drm_i915_private *dev_priv,
1225 enum pipe pipe, u32 port_sel, u32 val)
1227 if ((val & DP_PORT_EN) == 0)
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)
1236 if ((val & DP_PIPE_MASK) != (pipe << 30))
1242 static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
1243 enum pipe pipe, u32 val)
1245 if ((val & SDVO_ENABLE) == 0)
1248 if (HAS_PCH_CPT(dev_priv->dev)) {
1249 if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe))
1252 if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe))
1258 static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
1259 enum pipe pipe, u32 val)
1261 if ((val & LVDS_PORT_EN) == 0)
1264 if (HAS_PCH_CPT(dev_priv->dev)) {
1265 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1268 if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
1274 static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
1275 enum pipe pipe, u32 val)
1277 if ((val & ADPA_DAC_ENABLE) == 0)
1279 if (HAS_PCH_CPT(dev_priv->dev)) {
1280 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1283 if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
1289 static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
1290 enum pipe pipe, int reg, u32 port_sel)
1292 u32 val = I915_READ(reg);
1293 WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val),
1294 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1295 reg, pipe_name(pipe));
1297 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0
1298 && (val & DP_PIPEB_SELECT),
1299 "IBX PCH dp port still using transcoder B\n");
1302 static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
1303 enum pipe pipe, int reg)
1305 u32 val = I915_READ(reg);
1306 WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
1307 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1308 reg, pipe_name(pipe));
1310 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0
1311 && (val & SDVO_PIPE_B_SELECT),
1312 "IBX PCH hdmi port still using transcoder B\n");
1315 static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
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);
1326 val = I915_READ(reg);
1327 WARN(adpa_pipe_enabled(dev_priv, pipe, val),
1328 "PCH VGA enabled on transcoder %c, should be disabled\n",
1332 val = I915_READ(reg);
1333 WARN(lvds_pipe_enabled(dev_priv, pipe, val),
1334 "PCH LVDS enabled on transcoder %c, should be disabled\n",
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);
1343 * intel_enable_pll - enable a PLL
1344 * @dev_priv: i915 private structure
1345 * @pipe: pipe PLL to enable
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.
1351 * Note! This is for pre-ILK only.
1353 * Unfortunately needed by dvo_ns2501 since the dvo depends on it running.
1355 static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1360 assert_pipe_disabled(dev_priv, pipe);
1362 /* No really, not for ILK+ */
1363 BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5);
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);
1370 val = I915_READ(reg);
1371 val |= DPLL_VCO_ENABLE;
1373 /* We do this three times for luck */
1374 I915_WRITE(reg, val);
1376 udelay(150); /* wait for warmup */
1377 I915_WRITE(reg, val);
1379 udelay(150); /* wait for warmup */
1380 I915_WRITE(reg, val);
1382 udelay(150); /* wait for warmup */
1386 * intel_disable_pll - disable a PLL
1387 * @dev_priv: i915 private structure
1388 * @pipe: pipe PLL to disable
1390 * Disable the PLL for @pipe, making sure the pipe is off first.
1392 * Note! This is for pre-ILK only.
1394 static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1399 /* Don't disable pipe A or pipe A PLLs if needed */
1400 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1403 /* Make sure the pipe isn't still relying on us */
1404 assert_pipe_disabled(dev_priv, pipe);
1407 val = I915_READ(reg);
1408 val &= ~DPLL_VCO_ENABLE;
1409 I915_WRITE(reg, val);
1415 intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
1416 enum intel_sbi_destination destination)
1420 WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
1422 if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0,
1424 DRM_ERROR("timeout waiting for SBI to become ready\n");
1428 I915_WRITE(SBI_ADDR, (reg << 16));
1429 I915_WRITE(SBI_DATA, value);
1431 if (destination == SBI_ICLK)
1432 tmp = SBI_CTL_DEST_ICLK | SBI_CTL_OP_CRWR;
1434 tmp = SBI_CTL_DEST_MPHY | SBI_CTL_OP_IOWR;
1435 I915_WRITE(SBI_CTL_STAT, SBI_BUSY | tmp);
1437 if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0,
1439 DRM_ERROR("timeout waiting for SBI to complete write transaction\n");
1445 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
1446 enum intel_sbi_destination destination)
1449 WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
1451 if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0,
1453 DRM_ERROR("timeout waiting for SBI to become ready\n");
1457 I915_WRITE(SBI_ADDR, (reg << 16));
1459 if (destination == SBI_ICLK)
1460 value = SBI_CTL_DEST_ICLK | SBI_CTL_OP_CRRD;
1462 value = SBI_CTL_DEST_MPHY | SBI_CTL_OP_IORD;
1463 I915_WRITE(SBI_CTL_STAT, value | SBI_BUSY);
1465 if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0,
1467 DRM_ERROR("timeout waiting for SBI to complete read transaction\n");
1471 return I915_READ(SBI_DATA);
1474 void vlv_wait_port_ready(struct drm_i915_private *dev_priv, int port)
1479 port_mask = DPLL_PORTB_READY_MASK;
1481 port_mask = DPLL_PORTC_READY_MASK;
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)));
1489 * ironlake_enable_pch_pll - enable PCH PLL
1490 * @dev_priv: i915 private structure
1491 * @pipe: pipe PLL to enable
1493 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1494 * drives the transcoder clock.
1496 static void ironlake_enable_pch_pll(struct intel_crtc *intel_crtc)
1498 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
1499 struct intel_pch_pll *pll;
1503 /* PCH PLLs only available on ILK, SNB and IVB */
1504 BUG_ON(dev_priv->info->gen < 5);
1505 pll = intel_crtc->pch_pll;
1509 if (WARN_ON(pll->refcount == 0))
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);
1516 /* PCH refclock must be enabled first */
1517 assert_pch_refclk_enabled(dev_priv);
1519 if (pll->active++ && pll->on) {
1520 assert_pch_pll_enabled(dev_priv, pll, NULL);
1524 DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg);
1527 val = I915_READ(reg);
1528 val |= DPLL_VCO_ENABLE;
1529 I915_WRITE(reg, val);
1536 static void intel_disable_pch_pll(struct intel_crtc *intel_crtc)
1538 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
1539 struct intel_pch_pll *pll = intel_crtc->pch_pll;
1543 /* PCH only available on ILK+ */
1544 BUG_ON(dev_priv->info->gen < 5);
1548 if (WARN_ON(pll->refcount == 0))
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);
1555 if (WARN_ON(pll->active == 0)) {
1556 assert_pch_pll_disabled(dev_priv, pll, NULL);
1560 if (--pll->active) {
1561 assert_pch_pll_enabled(dev_priv, pll, NULL);
1565 DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg);
1567 /* Make sure transcoder isn't still depending on us */
1568 assert_transcoder_disabled(dev_priv, intel_crtc->pipe);
1571 val = I915_READ(reg);
1572 val &= ~DPLL_VCO_ENABLE;
1573 I915_WRITE(reg, val);
1580 static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1583 struct drm_device *dev = dev_priv->dev;
1584 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
1585 uint32_t reg, val, pipeconf_val;
1587 /* PCH only available on ILK+ */
1588 BUG_ON(dev_priv->info->gen < 5);
1590 /* Make sure PCH DPLL is enabled */
1591 assert_pch_pll_enabled(dev_priv,
1592 to_intel_crtc(crtc)->pch_pll,
1593 to_intel_crtc(crtc));
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);
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);
1608 reg = TRANSCONF(pipe);
1609 val = I915_READ(reg);
1610 pipeconf_val = I915_READ(PIPECONF(pipe));
1612 if (HAS_PCH_IBX(dev_priv->dev)) {
1614 * make the BPC in transcoder be consistent with
1615 * that in pipeconf reg.
1617 val &= ~PIPECONF_BPC_MASK;
1618 val |= pipeconf_val & PIPECONF_BPC_MASK;
1621 val &= ~TRANS_INTERLACE_MASK;
1622 if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
1623 if (HAS_PCH_IBX(dev_priv->dev) &&
1624 intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO))
1625 val |= TRANS_LEGACY_INTERLACED_ILK;
1627 val |= TRANS_INTERLACED;
1629 val |= TRANS_PROGRESSIVE;
1631 I915_WRITE(reg, val | TRANS_ENABLE);
1632 if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
1633 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe));
1636 static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1637 enum transcoder cpu_transcoder)
1639 u32 val, pipeconf_val;
1641 /* PCH only available on ILK+ */
1642 BUG_ON(dev_priv->info->gen < 5);
1644 /* FDI must be feeding us bits for PCH ports */
1645 assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
1646 assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
1648 /* Workaround: set timing override bit. */
1649 val = I915_READ(_TRANSA_CHICKEN2);
1650 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1651 I915_WRITE(_TRANSA_CHICKEN2, val);
1654 pipeconf_val = I915_READ(PIPECONF(cpu_transcoder));
1656 if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) ==
1657 PIPECONF_INTERLACED_ILK)
1658 val |= TRANS_INTERLACED;
1660 val |= TRANS_PROGRESSIVE;
1662 I915_WRITE(TRANSCONF(TRANSCODER_A), val);
1663 if (wait_for(I915_READ(_TRANSACONF) & TRANS_STATE_ENABLE, 100))
1664 DRM_ERROR("Failed to enable PCH transcoder\n");
1667 static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
1670 struct drm_device *dev = dev_priv->dev;
1673 /* FDI relies on the transcoder */
1674 assert_fdi_tx_disabled(dev_priv, pipe);
1675 assert_fdi_rx_disabled(dev_priv, pipe);
1677 /* Ports must be off as well */
1678 assert_pch_ports_disabled(dev_priv, pipe);
1680 reg = TRANSCONF(pipe);
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))
1686 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe));
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);
1697 static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
1701 val = I915_READ(_TRANSACONF);
1702 val &= ~TRANS_ENABLE;
1703 I915_WRITE(_TRANSACONF, val);
1704 /* wait for PCH transcoder off, transcoder state */
1705 if (wait_for((I915_READ(_TRANSACONF) & TRANS_STATE_ENABLE) == 0, 50))
1706 DRM_ERROR("Failed to disable PCH transcoder\n");
1708 /* Workaround: clear timing override bit. */
1709 val = I915_READ(_TRANSA_CHICKEN2);
1710 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1711 I915_WRITE(_TRANSA_CHICKEN2, val);
1715 * intel_enable_pipe - enable a pipe, asserting requirements
1716 * @dev_priv: i915 private structure
1717 * @pipe: pipe to enable
1718 * @pch_port: on ILK+, is this pipe driving a PCH port or not
1720 * Enable @pipe, making sure that various hardware specific requirements
1721 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1723 * @pipe should be %PIPE_A or %PIPE_B.
1725 * Will wait until the pipe is actually running (i.e. first vblank) before
1728 static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
1731 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1733 enum pipe pch_transcoder;
1737 assert_planes_disabled(dev_priv, pipe);
1738 assert_sprites_disabled(dev_priv, pipe);
1740 if (HAS_PCH_LPT(dev_priv->dev))
1741 pch_transcoder = TRANSCODER_A;
1743 pch_transcoder = pipe;
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
1750 if (!HAS_PCH_SPLIT(dev_priv->dev))
1751 assert_pll_enabled(dev_priv, pipe);
1754 /* if driving the PCH, we need FDI enabled */
1755 assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
1756 assert_fdi_tx_pll_enabled(dev_priv,
1757 (enum pipe) cpu_transcoder);
1759 /* FIXME: assert CPU port conditions for SNB+ */
1762 reg = PIPECONF(cpu_transcoder);
1763 val = I915_READ(reg);
1764 if (val & PIPECONF_ENABLE)
1767 I915_WRITE(reg, val | PIPECONF_ENABLE);
1768 intel_wait_for_vblank(dev_priv->dev, pipe);
1772 * intel_disable_pipe - disable a pipe, asserting requirements
1773 * @dev_priv: i915 private structure
1774 * @pipe: pipe to disable
1776 * Disable @pipe, making sure that various hardware specific requirements
1777 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1779 * @pipe should be %PIPE_A or %PIPE_B.
1781 * Will wait until the pipe has shut down before returning.
1783 static void intel_disable_pipe(struct drm_i915_private *dev_priv,
1786 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1792 * Make sure planes won't keep trying to pump pixels to us,
1793 * or we might hang the display.
1795 assert_planes_disabled(dev_priv, pipe);
1796 assert_sprites_disabled(dev_priv, pipe);
1798 /* Don't disable pipe A or pipe A PLLs if needed */
1799 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1802 reg = PIPECONF(cpu_transcoder);
1803 val = I915_READ(reg);
1804 if ((val & PIPECONF_ENABLE) == 0)
1807 I915_WRITE(reg, val & ~PIPECONF_ENABLE);
1808 intel_wait_for_pipe_off(dev_priv->dev, pipe);
1812 * Plane regs are double buffered, going from enabled->disabled needs a
1813 * trigger in order to latch. The display address reg provides this.
1815 void intel_flush_display_plane(struct drm_i915_private *dev_priv,
1818 if (dev_priv->info->gen >= 4)
1819 I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane)));
1821 I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane)));
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
1830 * Enable @plane on @pipe, making sure that @pipe is running first.
1832 static void intel_enable_plane(struct drm_i915_private *dev_priv,
1833 enum plane plane, enum pipe pipe)
1838 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1839 assert_pipe_enabled(dev_priv, pipe);
1841 reg = DSPCNTR(plane);
1842 val = I915_READ(reg);
1843 if (val & DISPLAY_PLANE_ENABLE)
1846 I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
1847 intel_flush_display_plane(dev_priv, plane);
1848 intel_wait_for_vblank(dev_priv->dev, pipe);
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
1857 * Disable @plane; should be an independent operation.
1859 static void intel_disable_plane(struct drm_i915_private *dev_priv,
1860 enum plane plane, enum pipe pipe)
1865 reg = DSPCNTR(plane);
1866 val = I915_READ(reg);
1867 if ((val & DISPLAY_PLANE_ENABLE) == 0)
1870 I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
1871 intel_flush_display_plane(dev_priv, plane);
1872 intel_wait_for_vblank(dev_priv->dev, pipe);
1875 static bool need_vtd_wa(struct drm_device *dev)
1877 #ifdef CONFIG_INTEL_IOMMU
1878 if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped)
1885 intel_pin_and_fence_fb_obj(struct drm_device *dev,
1886 struct drm_i915_gem_object *obj,
1887 struct intel_ring_buffer *pipelined)
1889 struct drm_i915_private *dev_priv = dev->dev_private;
1893 switch (obj->tiling_mode) {
1894 case I915_TILING_NONE:
1895 if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
1896 alignment = 128 * 1024;
1897 else if (INTEL_INFO(dev)->gen >= 4)
1898 alignment = 4 * 1024;
1900 alignment = 64 * 1024;
1903 /* pin() will align the object as required by fence */
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");
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
1921 if (need_vtd_wa(dev) && alignment < 256 * 1024)
1922 alignment = 256 * 1024;
1924 dev_priv->mm.interruptible = false;
1925 ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
1927 goto err_interruptible;
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.
1934 ret = i915_gem_object_get_fence(obj);
1938 i915_gem_object_pin_fence(obj);
1940 dev_priv->mm.interruptible = true;
1944 i915_gem_object_unpin(obj);
1946 dev_priv->mm.interruptible = true;
1950 void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
1952 i915_gem_object_unpin_fence(obj);
1953 i915_gem_object_unpin(obj);
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. */
1958 unsigned long intel_gen4_compute_page_offset(int *x, int *y,
1959 unsigned int tiling_mode,
1963 if (tiling_mode != I915_TILING_NONE) {
1964 unsigned int tile_rows, tiles;
1969 tiles = *x / (512/cpp);
1972 return tile_rows * pitch * 8 + tiles * 4096;
1974 unsigned int offset;
1976 offset = *y * pitch + *x * cpp;
1978 *x = (offset & 4095) / cpp;
1979 return offset & -4096;
1983 static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
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;
1990 struct drm_i915_gem_object *obj;
1991 int plane = intel_crtc->plane;
1992 unsigned long linear_offset;
2001 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
2005 intel_fb = to_intel_framebuffer(fb);
2006 obj = intel_fb->obj;
2008 reg = DSPCNTR(plane);
2009 dspcntr = I915_READ(reg);
2010 /* Mask out pixel format bits in case we change it */
2011 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2012 switch (fb->pixel_format) {
2014 dspcntr |= DISPPLANE_8BPP;
2016 case DRM_FORMAT_XRGB1555:
2017 case DRM_FORMAT_ARGB1555:
2018 dspcntr |= DISPPLANE_BGRX555;
2020 case DRM_FORMAT_RGB565:
2021 dspcntr |= DISPPLANE_BGRX565;
2023 case DRM_FORMAT_XRGB8888:
2024 case DRM_FORMAT_ARGB8888:
2025 dspcntr |= DISPPLANE_BGRX888;
2027 case DRM_FORMAT_XBGR8888:
2028 case DRM_FORMAT_ABGR8888:
2029 dspcntr |= DISPPLANE_RGBX888;
2031 case DRM_FORMAT_XRGB2101010:
2032 case DRM_FORMAT_ARGB2101010:
2033 dspcntr |= DISPPLANE_BGRX101010;
2035 case DRM_FORMAT_XBGR2101010:
2036 case DRM_FORMAT_ABGR2101010:
2037 dspcntr |= DISPPLANE_RGBX101010;
2043 if (INTEL_INFO(dev)->gen >= 4) {
2044 if (obj->tiling_mode != I915_TILING_NONE)
2045 dspcntr |= DISPPLANE_TILED;
2047 dspcntr &= ~DISPPLANE_TILED;
2050 I915_WRITE(reg, dspcntr);
2052 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2054 if (INTEL_INFO(dev)->gen >= 4) {
2055 intel_crtc->dspaddr_offset =
2056 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2057 fb->bits_per_pixel / 8,
2059 linear_offset -= intel_crtc->dspaddr_offset;
2061 intel_crtc->dspaddr_offset = linear_offset;
2064 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2065 obj->gtt_offset, linear_offset, x, y, fb->pitches[0]);
2066 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2067 if (INTEL_INFO(dev)->gen >= 4) {
2068 I915_MODIFY_DISPBASE(DSPSURF(plane),
2069 obj->gtt_offset + intel_crtc->dspaddr_offset);
2070 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2071 I915_WRITE(DSPLINOFF(plane), linear_offset);
2073 I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset);
2079 static int ironlake_update_plane(struct drm_crtc *crtc,
2080 struct drm_framebuffer *fb, int x, int y)
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;
2088 unsigned long linear_offset;
2098 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
2102 intel_fb = to_intel_framebuffer(fb);
2103 obj = intel_fb->obj;
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;
2109 switch (fb->pixel_format) {
2111 dspcntr |= DISPPLANE_8BPP;
2113 case DRM_FORMAT_RGB565:
2114 dspcntr |= DISPPLANE_BGRX565;
2116 case DRM_FORMAT_XRGB8888:
2117 case DRM_FORMAT_ARGB8888:
2118 dspcntr |= DISPPLANE_BGRX888;
2120 case DRM_FORMAT_XBGR8888:
2121 case DRM_FORMAT_ABGR8888:
2122 dspcntr |= DISPPLANE_RGBX888;
2124 case DRM_FORMAT_XRGB2101010:
2125 case DRM_FORMAT_ARGB2101010:
2126 dspcntr |= DISPPLANE_BGRX101010;
2128 case DRM_FORMAT_XBGR2101010:
2129 case DRM_FORMAT_ABGR2101010:
2130 dspcntr |= DISPPLANE_RGBX101010;
2136 if (obj->tiling_mode != I915_TILING_NONE)
2137 dspcntr |= DISPPLANE_TILED;
2139 dspcntr &= ~DISPPLANE_TILED;
2142 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2144 I915_WRITE(reg, dspcntr);
2146 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2147 intel_crtc->dspaddr_offset =
2148 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2149 fb->bits_per_pixel / 8,
2151 linear_offset -= intel_crtc->dspaddr_offset;
2153 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2154 obj->gtt_offset, linear_offset, x, y, fb->pitches[0]);
2155 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2156 I915_MODIFY_DISPBASE(DSPSURF(plane),
2157 obj->gtt_offset + intel_crtc->dspaddr_offset);
2158 if (IS_HASWELL(dev)) {
2159 I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
2161 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2162 I915_WRITE(DSPLINOFF(plane), linear_offset);
2169 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2171 intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2172 int x, int y, enum mode_set_atomic state)
2174 struct drm_device *dev = crtc->dev;
2175 struct drm_i915_private *dev_priv = dev->dev_private;
2177 if (dev_priv->display.disable_fbc)
2178 dev_priv->display.disable_fbc(dev);
2179 intel_increase_pllclock(crtc);
2181 return dev_priv->display.update_plane(crtc, fb, x, y);
2184 void intel_display_handle_reset(struct drm_device *dev)
2186 struct drm_i915_private *dev_priv = dev->dev_private;
2187 struct drm_crtc *crtc;
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.
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.
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.
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;
2207 intel_prepare_page_flip(dev, plane);
2208 intel_finish_page_flip_plane(dev, plane);
2211 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2212 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2214 mutex_lock(&crtc->mutex);
2215 if (intel_crtc->active)
2216 dev_priv->display.update_plane(crtc, crtc->fb,
2218 mutex_unlock(&crtc->mutex);
2223 intel_finish_fb(struct drm_framebuffer *old_fb)
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;
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
2235 * This should only fail upon a hung GPU, in which case we
2236 * can safely continue.
2238 dev_priv->mm.interruptible = false;
2239 ret = i915_gem_object_finish_gpu(obj);
2240 dev_priv->mm.interruptible = was_interruptible;
2245 static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y)
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);
2251 if (!dev->primary->master)
2254 master_priv = dev->primary->master->driver_priv;
2255 if (!master_priv->sarea_priv)
2258 switch (intel_crtc->pipe) {
2260 master_priv->sarea_priv->pipeA_x = x;
2261 master_priv->sarea_priv->pipeA_y = y;
2264 master_priv->sarea_priv->pipeB_x = x;
2265 master_priv->sarea_priv->pipeB_y = y;
2273 intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
2274 struct drm_framebuffer *fb)
2276 struct drm_device *dev = crtc->dev;
2277 struct drm_i915_private *dev_priv = dev->dev_private;
2278 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2279 struct drm_framebuffer *old_fb;
2284 DRM_ERROR("No FB bound\n");
2288 if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
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);
2295 mutex_lock(&dev->struct_mutex);
2296 ret = intel_pin_and_fence_fb_obj(dev,
2297 to_intel_framebuffer(fb)->obj,
2300 mutex_unlock(&dev->struct_mutex);
2301 DRM_ERROR("pin & fence failed\n");
2305 ret = dev_priv->display.update_plane(crtc, fb, x, y);
2307 intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);
2308 mutex_unlock(&dev->struct_mutex);
2309 DRM_ERROR("failed to update base address\n");
2319 intel_wait_for_vblank(dev, intel_crtc->pipe);
2320 intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
2323 intel_update_fbc(dev);
2324 mutex_unlock(&dev->struct_mutex);
2326 intel_crtc_update_sarea_pos(crtc, x, y);
2331 static void intel_fdi_normal_train(struct drm_crtc *crtc)
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;
2339 /* enable normal train */
2340 reg = FDI_TX_CTL(pipe);
2341 temp = I915_READ(reg);
2342 if (IS_IVYBRIDGE(dev)) {
2343 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2344 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
2346 temp &= ~FDI_LINK_TRAIN_NONE;
2347 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
2349 I915_WRITE(reg, temp);
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;
2357 temp &= ~FDI_LINK_TRAIN_NONE;
2358 temp |= FDI_LINK_TRAIN_NONE;
2360 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
2362 /* wait one idle pattern time */
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);
2372 static void ivb_modeset_global_resources(struct drm_device *dev)
2374 struct drm_i915_private *dev_priv = dev->dev_private;
2375 struct intel_crtc *pipe_B_crtc =
2376 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
2377 struct intel_crtc *pipe_C_crtc =
2378 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]);
2381 /* When everything is off disable fdi C so that we could enable fdi B
2382 * with all lanes. XXX: This misses the case where a pipe is not using
2383 * any pch resources and so doesn't need any fdi lanes. */
2384 if (!pipe_B_crtc->base.enabled && !pipe_C_crtc->base.enabled) {
2385 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
2386 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
2388 temp = I915_READ(SOUTH_CHICKEN1);
2389 temp &= ~FDI_BC_BIFURCATION_SELECT;
2390 DRM_DEBUG_KMS("disabling fdi C rx\n");
2391 I915_WRITE(SOUTH_CHICKEN1, temp);
2395 /* The FDI link training functions for ILK/Ibexpeak. */
2396 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
2398 struct drm_device *dev = crtc->dev;
2399 struct drm_i915_private *dev_priv = dev->dev_private;
2400 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2401 int pipe = intel_crtc->pipe;
2402 int plane = intel_crtc->plane;
2403 u32 reg, temp, tries;
2405 /* FDI needs bits from pipe & plane first */
2406 assert_pipe_enabled(dev_priv, pipe);
2407 assert_plane_enabled(dev_priv, plane);
2409 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2411 reg = FDI_RX_IMR(pipe);
2412 temp = I915_READ(reg);
2413 temp &= ~FDI_RX_SYMBOL_LOCK;
2414 temp &= ~FDI_RX_BIT_LOCK;
2415 I915_WRITE(reg, temp);
2419 /* enable CPU FDI TX and PCH FDI RX */
2420 reg = FDI_TX_CTL(pipe);
2421 temp = I915_READ(reg);
2422 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2423 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2424 temp &= ~FDI_LINK_TRAIN_NONE;
2425 temp |= FDI_LINK_TRAIN_PATTERN_1;
2426 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2428 reg = FDI_RX_CTL(pipe);
2429 temp = I915_READ(reg);
2430 temp &= ~FDI_LINK_TRAIN_NONE;
2431 temp |= FDI_LINK_TRAIN_PATTERN_1;
2432 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2437 /* Ironlake workaround, enable clock pointer after FDI enable*/
2438 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2439 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
2440 FDI_RX_PHASE_SYNC_POINTER_EN);
2442 reg = FDI_RX_IIR(pipe);
2443 for (tries = 0; tries < 5; tries++) {
2444 temp = I915_READ(reg);
2445 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2447 if ((temp & FDI_RX_BIT_LOCK)) {
2448 DRM_DEBUG_KMS("FDI train 1 done.\n");
2449 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2454 DRM_ERROR("FDI train 1 fail!\n");
2457 reg = FDI_TX_CTL(pipe);
2458 temp = I915_READ(reg);
2459 temp &= ~FDI_LINK_TRAIN_NONE;
2460 temp |= FDI_LINK_TRAIN_PATTERN_2;
2461 I915_WRITE(reg, temp);
2463 reg = FDI_RX_CTL(pipe);
2464 temp = I915_READ(reg);
2465 temp &= ~FDI_LINK_TRAIN_NONE;
2466 temp |= FDI_LINK_TRAIN_PATTERN_2;
2467 I915_WRITE(reg, temp);
2472 reg = FDI_RX_IIR(pipe);
2473 for (tries = 0; tries < 5; tries++) {
2474 temp = I915_READ(reg);
2475 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2477 if (temp & FDI_RX_SYMBOL_LOCK) {
2478 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2479 DRM_DEBUG_KMS("FDI train 2 done.\n");
2484 DRM_ERROR("FDI train 2 fail!\n");
2486 DRM_DEBUG_KMS("FDI train done\n");
2490 static const int snb_b_fdi_train_param[] = {
2491 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
2492 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
2493 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
2494 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
2497 /* The FDI link training functions for SNB/Cougarpoint. */
2498 static void gen6_fdi_link_train(struct drm_crtc *crtc)
2500 struct drm_device *dev = crtc->dev;
2501 struct drm_i915_private *dev_priv = dev->dev_private;
2502 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2503 int pipe = intel_crtc->pipe;
2504 u32 reg, temp, i, retry;
2506 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2508 reg = FDI_RX_IMR(pipe);
2509 temp = I915_READ(reg);
2510 temp &= ~FDI_RX_SYMBOL_LOCK;
2511 temp &= ~FDI_RX_BIT_LOCK;
2512 I915_WRITE(reg, temp);
2517 /* enable CPU FDI TX and PCH FDI RX */
2518 reg = FDI_TX_CTL(pipe);
2519 temp = I915_READ(reg);
2520 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2521 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2522 temp &= ~FDI_LINK_TRAIN_NONE;
2523 temp |= FDI_LINK_TRAIN_PATTERN_1;
2524 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2526 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2527 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2529 I915_WRITE(FDI_RX_MISC(pipe),
2530 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2532 reg = FDI_RX_CTL(pipe);
2533 temp = I915_READ(reg);
2534 if (HAS_PCH_CPT(dev)) {
2535 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2536 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2538 temp &= ~FDI_LINK_TRAIN_NONE;
2539 temp |= FDI_LINK_TRAIN_PATTERN_1;
2541 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2546 for (i = 0; i < 4; i++) {
2547 reg = FDI_TX_CTL(pipe);
2548 temp = I915_READ(reg);
2549 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2550 temp |= snb_b_fdi_train_param[i];
2551 I915_WRITE(reg, temp);
2556 for (retry = 0; retry < 5; retry++) {
2557 reg = FDI_RX_IIR(pipe);
2558 temp = I915_READ(reg);
2559 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2560 if (temp & FDI_RX_BIT_LOCK) {
2561 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2562 DRM_DEBUG_KMS("FDI train 1 done.\n");
2571 DRM_ERROR("FDI train 1 fail!\n");
2574 reg = FDI_TX_CTL(pipe);
2575 temp = I915_READ(reg);
2576 temp &= ~FDI_LINK_TRAIN_NONE;
2577 temp |= FDI_LINK_TRAIN_PATTERN_2;
2579 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2581 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2583 I915_WRITE(reg, temp);
2585 reg = FDI_RX_CTL(pipe);
2586 temp = I915_READ(reg);
2587 if (HAS_PCH_CPT(dev)) {
2588 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2589 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2591 temp &= ~FDI_LINK_TRAIN_NONE;
2592 temp |= FDI_LINK_TRAIN_PATTERN_2;
2594 I915_WRITE(reg, temp);
2599 for (i = 0; i < 4; i++) {
2600 reg = FDI_TX_CTL(pipe);
2601 temp = I915_READ(reg);
2602 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2603 temp |= snb_b_fdi_train_param[i];
2604 I915_WRITE(reg, temp);
2609 for (retry = 0; retry < 5; retry++) {
2610 reg = FDI_RX_IIR(pipe);
2611 temp = I915_READ(reg);
2612 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2613 if (temp & FDI_RX_SYMBOL_LOCK) {
2614 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2615 DRM_DEBUG_KMS("FDI train 2 done.\n");
2624 DRM_ERROR("FDI train 2 fail!\n");
2626 DRM_DEBUG_KMS("FDI train done.\n");
2629 /* Manual link training for Ivy Bridge A0 parts */
2630 static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
2632 struct drm_device *dev = crtc->dev;
2633 struct drm_i915_private *dev_priv = dev->dev_private;
2634 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2635 int pipe = intel_crtc->pipe;
2638 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2640 reg = FDI_RX_IMR(pipe);
2641 temp = I915_READ(reg);
2642 temp &= ~FDI_RX_SYMBOL_LOCK;
2643 temp &= ~FDI_RX_BIT_LOCK;
2644 I915_WRITE(reg, temp);
2649 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2650 I915_READ(FDI_RX_IIR(pipe)));
2652 /* enable CPU FDI TX and PCH FDI RX */
2653 reg = FDI_TX_CTL(pipe);
2654 temp = I915_READ(reg);
2655 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2656 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2657 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
2658 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
2659 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2660 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2661 temp |= FDI_COMPOSITE_SYNC;
2662 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2664 I915_WRITE(FDI_RX_MISC(pipe),
2665 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2667 reg = FDI_RX_CTL(pipe);
2668 temp = I915_READ(reg);
2669 temp &= ~FDI_LINK_TRAIN_AUTO;
2670 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2671 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2672 temp |= FDI_COMPOSITE_SYNC;
2673 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2678 for (i = 0; i < 4; i++) {
2679 reg = FDI_TX_CTL(pipe);
2680 temp = I915_READ(reg);
2681 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2682 temp |= snb_b_fdi_train_param[i];
2683 I915_WRITE(reg, temp);
2688 reg = FDI_RX_IIR(pipe);
2689 temp = I915_READ(reg);
2690 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2692 if (temp & FDI_RX_BIT_LOCK ||
2693 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
2694 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2695 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", i);
2700 DRM_ERROR("FDI train 1 fail!\n");
2703 reg = FDI_TX_CTL(pipe);
2704 temp = I915_READ(reg);
2705 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2706 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
2707 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2708 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2709 I915_WRITE(reg, temp);
2711 reg = FDI_RX_CTL(pipe);
2712 temp = I915_READ(reg);
2713 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2714 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2715 I915_WRITE(reg, temp);
2720 for (i = 0; i < 4; i++) {
2721 reg = FDI_TX_CTL(pipe);
2722 temp = I915_READ(reg);
2723 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2724 temp |= snb_b_fdi_train_param[i];
2725 I915_WRITE(reg, temp);
2730 reg = FDI_RX_IIR(pipe);
2731 temp = I915_READ(reg);
2732 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2734 if (temp & FDI_RX_SYMBOL_LOCK) {
2735 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2736 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", i);
2741 DRM_ERROR("FDI train 2 fail!\n");
2743 DRM_DEBUG_KMS("FDI train done.\n");
2746 static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
2748 struct drm_device *dev = intel_crtc->base.dev;
2749 struct drm_i915_private *dev_priv = dev->dev_private;
2750 int pipe = intel_crtc->pipe;
2754 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2755 reg = FDI_RX_CTL(pipe);
2756 temp = I915_READ(reg);
2757 temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
2758 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2759 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2760 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
2765 /* Switch from Rawclk to PCDclk */
2766 temp = I915_READ(reg);
2767 I915_WRITE(reg, temp | FDI_PCDCLK);
2772 /* Enable CPU FDI TX PLL, always on for Ironlake */
2773 reg = FDI_TX_CTL(pipe);
2774 temp = I915_READ(reg);
2775 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
2776 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
2783 static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
2785 struct drm_device *dev = intel_crtc->base.dev;
2786 struct drm_i915_private *dev_priv = dev->dev_private;
2787 int pipe = intel_crtc->pipe;
2790 /* Switch from PCDclk to Rawclk */
2791 reg = FDI_RX_CTL(pipe);
2792 temp = I915_READ(reg);
2793 I915_WRITE(reg, temp & ~FDI_PCDCLK);
2795 /* Disable CPU FDI TX PLL */
2796 reg = FDI_TX_CTL(pipe);
2797 temp = I915_READ(reg);
2798 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
2803 reg = FDI_RX_CTL(pipe);
2804 temp = I915_READ(reg);
2805 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
2807 /* Wait for the clocks to turn off. */
2812 static void ironlake_fdi_disable(struct drm_crtc *crtc)
2814 struct drm_device *dev = crtc->dev;
2815 struct drm_i915_private *dev_priv = dev->dev_private;
2816 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2817 int pipe = intel_crtc->pipe;
2820 /* disable CPU FDI tx and PCH FDI rx */
2821 reg = FDI_TX_CTL(pipe);
2822 temp = I915_READ(reg);
2823 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
2826 reg = FDI_RX_CTL(pipe);
2827 temp = I915_READ(reg);
2828 temp &= ~(0x7 << 16);
2829 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2830 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
2835 /* Ironlake workaround, disable clock pointer after downing FDI */
2836 if (HAS_PCH_IBX(dev)) {
2837 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2840 /* still set train pattern 1 */
2841 reg = FDI_TX_CTL(pipe);
2842 temp = I915_READ(reg);
2843 temp &= ~FDI_LINK_TRAIN_NONE;
2844 temp |= FDI_LINK_TRAIN_PATTERN_1;
2845 I915_WRITE(reg, temp);
2847 reg = FDI_RX_CTL(pipe);
2848 temp = I915_READ(reg);
2849 if (HAS_PCH_CPT(dev)) {
2850 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2851 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2853 temp &= ~FDI_LINK_TRAIN_NONE;
2854 temp |= FDI_LINK_TRAIN_PATTERN_1;
2856 /* BPC in FDI rx is consistent with that in PIPECONF */
2857 temp &= ~(0x07 << 16);
2858 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2859 I915_WRITE(reg, temp);
2865 static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
2867 struct drm_device *dev = crtc->dev;
2868 struct drm_i915_private *dev_priv = dev->dev_private;
2869 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2870 unsigned long flags;
2873 if (i915_reset_in_progress(&dev_priv->gpu_error) ||
2874 intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
2877 spin_lock_irqsave(&dev->event_lock, flags);
2878 pending = to_intel_crtc(crtc)->unpin_work != NULL;
2879 spin_unlock_irqrestore(&dev->event_lock, flags);
2884 static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
2886 struct drm_device *dev = crtc->dev;
2887 struct drm_i915_private *dev_priv = dev->dev_private;
2889 if (crtc->fb == NULL)
2892 WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
2894 wait_event(dev_priv->pending_flip_queue,
2895 !intel_crtc_has_pending_flip(crtc));
2897 mutex_lock(&dev->struct_mutex);
2898 intel_finish_fb(crtc->fb);
2899 mutex_unlock(&dev->struct_mutex);
2902 /* Program iCLKIP clock to the desired frequency */
2903 static void lpt_program_iclkip(struct drm_crtc *crtc)
2905 struct drm_device *dev = crtc->dev;
2906 struct drm_i915_private *dev_priv = dev->dev_private;
2907 u32 divsel, phaseinc, auxdiv, phasedir = 0;
2910 mutex_lock(&dev_priv->dpio_lock);
2912 /* It is necessary to ungate the pixclk gate prior to programming
2913 * the divisors, and gate it back when it is done.
2915 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
2917 /* Disable SSCCTL */
2918 intel_sbi_write(dev_priv, SBI_SSCCTL6,
2919 intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) |
2923 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
2924 if (crtc->mode.clock == 20000) {
2929 /* The iCLK virtual clock root frequency is in MHz,
2930 * but the crtc->mode.clock in in KHz. To get the divisors,
2931 * it is necessary to divide one by another, so we
2932 * convert the virtual clock precision to KHz here for higher
2935 u32 iclk_virtual_root_freq = 172800 * 1000;
2936 u32 iclk_pi_range = 64;
2937 u32 desired_divisor, msb_divisor_value, pi_value;
2939 desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock);
2940 msb_divisor_value = desired_divisor / iclk_pi_range;
2941 pi_value = desired_divisor % iclk_pi_range;
2944 divsel = msb_divisor_value - 2;
2945 phaseinc = pi_value;
2948 /* This should not happen with any sane values */
2949 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
2950 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
2951 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
2952 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
2954 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
2961 /* Program SSCDIVINTPHASE6 */
2962 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
2963 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
2964 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
2965 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
2966 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
2967 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
2968 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
2969 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
2971 /* Program SSCAUXDIV */
2972 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
2973 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
2974 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
2975 intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
2977 /* Enable modulator and associated divider */
2978 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
2979 temp &= ~SBI_SSCCTL_DISABLE;
2980 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
2982 /* Wait for initialization time */
2985 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
2987 mutex_unlock(&dev_priv->dpio_lock);
2991 * Enable PCH resources required for PCH ports:
2993 * - FDI training & RX/TX
2994 * - update transcoder timings
2995 * - DP transcoding bits
2998 static void ironlake_pch_enable(struct drm_crtc *crtc)
3000 struct drm_device *dev = crtc->dev;
3001 struct drm_i915_private *dev_priv = dev->dev_private;
3002 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3003 int pipe = intel_crtc->pipe;
3006 assert_transcoder_disabled(dev_priv, pipe);
3008 /* Write the TU size bits before fdi link training, so that error
3009 * detection works. */
3010 I915_WRITE(FDI_RX_TUSIZE1(pipe),
3011 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
3013 /* For PCH output, training FDI link */
3014 dev_priv->display.fdi_link_train(crtc);
3016 /* XXX: pch pll's can be enabled any time before we enable the PCH
3017 * transcoder, and we actually should do this to not upset any PCH
3018 * transcoder that already use the clock when we share it.
3020 * Note that enable_pch_pll tries to do the right thing, but get_pch_pll
3021 * unconditionally resets the pll - we need that to have the right LVDS
3022 * enable sequence. */
3023 ironlake_enable_pch_pll(intel_crtc);
3025 if (HAS_PCH_CPT(dev)) {
3028 temp = I915_READ(PCH_DPLL_SEL);
3032 temp |= TRANSA_DPLL_ENABLE;
3033 sel = TRANSA_DPLLB_SEL;
3036 temp |= TRANSB_DPLL_ENABLE;
3037 sel = TRANSB_DPLLB_SEL;
3040 temp |= TRANSC_DPLL_ENABLE;
3041 sel = TRANSC_DPLLB_SEL;
3044 if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B)
3048 I915_WRITE(PCH_DPLL_SEL, temp);
3051 /* set transcoder timing, panel must allow it */
3052 assert_panel_unlocked(dev_priv, pipe);
3053 I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe)));
3054 I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe)));
3055 I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe)));
3057 I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe)));
3058 I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe)));
3059 I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe)));
3060 I915_WRITE(TRANS_VSYNCSHIFT(pipe), I915_READ(VSYNCSHIFT(pipe)));
3062 intel_fdi_normal_train(crtc);
3064 /* For PCH DP, enable TRANS_DP_CTL */
3065 if (HAS_PCH_CPT(dev) &&
3066 (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
3067 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
3068 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
3069 reg = TRANS_DP_CTL(pipe);
3070 temp = I915_READ(reg);
3071 temp &= ~(TRANS_DP_PORT_SEL_MASK |
3072 TRANS_DP_SYNC_MASK |
3074 temp |= (TRANS_DP_OUTPUT_ENABLE |
3075 TRANS_DP_ENH_FRAMING);
3076 temp |= bpc << 9; /* same format but at 11:9 */
3078 if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
3079 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
3080 if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
3081 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
3083 switch (intel_trans_dp_port_sel(crtc)) {
3085 temp |= TRANS_DP_PORT_SEL_B;
3088 temp |= TRANS_DP_PORT_SEL_C;
3091 temp |= TRANS_DP_PORT_SEL_D;
3097 I915_WRITE(reg, temp);
3100 ironlake_enable_pch_transcoder(dev_priv, pipe);
3103 static void lpt_pch_enable(struct drm_crtc *crtc)
3105 struct drm_device *dev = crtc->dev;
3106 struct drm_i915_private *dev_priv = dev->dev_private;
3107 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3108 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
3110 assert_transcoder_disabled(dev_priv, TRANSCODER_A);
3112 lpt_program_iclkip(crtc);
3114 /* Set transcoder timing. */
3115 I915_WRITE(_TRANS_HTOTAL_A, I915_READ(HTOTAL(cpu_transcoder)));
3116 I915_WRITE(_TRANS_HBLANK_A, I915_READ(HBLANK(cpu_transcoder)));
3117 I915_WRITE(_TRANS_HSYNC_A, I915_READ(HSYNC(cpu_transcoder)));
3119 I915_WRITE(_TRANS_VTOTAL_A, I915_READ(VTOTAL(cpu_transcoder)));
3120 I915_WRITE(_TRANS_VBLANK_A, I915_READ(VBLANK(cpu_transcoder)));
3121 I915_WRITE(_TRANS_VSYNC_A, I915_READ(VSYNC(cpu_transcoder)));
3122 I915_WRITE(_TRANS_VSYNCSHIFT_A, I915_READ(VSYNCSHIFT(cpu_transcoder)));
3124 lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
3127 static void intel_put_pch_pll(struct intel_crtc *intel_crtc)
3129 struct intel_pch_pll *pll = intel_crtc->pch_pll;
3134 if (pll->refcount == 0) {
3135 WARN(1, "bad PCH PLL refcount\n");
3140 intel_crtc->pch_pll = NULL;
3143 static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp)
3145 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
3146 struct intel_pch_pll *pll;
3149 pll = intel_crtc->pch_pll;
3151 DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n",
3152 intel_crtc->base.base.id, pll->pll_reg);
3156 if (HAS_PCH_IBX(dev_priv->dev)) {
3157 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3158 i = intel_crtc->pipe;
3159 pll = &dev_priv->pch_plls[i];
3161 DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n",
3162 intel_crtc->base.base.id, pll->pll_reg);
3167 for (i = 0; i < dev_priv->num_pch_pll; i++) {
3168 pll = &dev_priv->pch_plls[i];
3170 /* Only want to check enabled timings first */
3171 if (pll->refcount == 0)
3174 if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) &&
3175 fp == I915_READ(pll->fp0_reg)) {
3176 DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n",
3177 intel_crtc->base.base.id,
3178 pll->pll_reg, pll->refcount, pll->active);
3184 /* Ok no matching timings, maybe there's a free one? */
3185 for (i = 0; i < dev_priv->num_pch_pll; i++) {
3186 pll = &dev_priv->pch_plls[i];
3187 if (pll->refcount == 0) {
3188 DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n",
3189 intel_crtc->base.base.id, pll->pll_reg);
3197 intel_crtc->pch_pll = pll;
3199 DRM_DEBUG_DRIVER("using pll %d for pipe %c\n", i, pipe_name(intel_crtc->pipe));
3200 prepare: /* separate function? */
3201 DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg);
3203 /* Wait for the clocks to stabilize before rewriting the regs */
3204 I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE);
3205 POSTING_READ(pll->pll_reg);
3208 I915_WRITE(pll->fp0_reg, fp);
3209 I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE);
3214 void intel_cpt_verify_modeset(struct drm_device *dev, int pipe)
3216 struct drm_i915_private *dev_priv = dev->dev_private;
3217 int dslreg = PIPEDSL(pipe);
3220 temp = I915_READ(dslreg);
3222 if (wait_for(I915_READ(dslreg) != temp, 5)) {
3223 if (wait_for(I915_READ(dslreg) != temp, 5))
3224 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe));
3228 static void ironlake_pfit_enable(struct intel_crtc *crtc)
3230 struct drm_device *dev = crtc->base.dev;
3231 struct drm_i915_private *dev_priv = dev->dev_private;
3232 int pipe = crtc->pipe;
3234 if (crtc->config.pch_pfit.size &&
3235 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP)) {
3236 /* Force use of hard-coded filter coefficients
3237 * as some pre-programmed values are broken,
3240 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
3241 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
3242 PF_PIPE_SEL_IVB(pipe));
3244 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
3245 I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos);
3246 I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size);
3250 static void ironlake_crtc_enable(struct drm_crtc *crtc)
3252 struct drm_device *dev = crtc->dev;
3253 struct drm_i915_private *dev_priv = dev->dev_private;
3254 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3255 struct intel_encoder *encoder;
3256 int pipe = intel_crtc->pipe;
3257 int plane = intel_crtc->plane;
3260 WARN_ON(!crtc->enabled);
3262 if (intel_crtc->active)
3265 intel_crtc->active = true;
3267 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3268 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3270 intel_update_watermarks(dev);
3272 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
3273 temp = I915_READ(PCH_LVDS);
3274 if ((temp & LVDS_PORT_EN) == 0)
3275 I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN);
3279 if (intel_crtc->config.has_pch_encoder) {
3280 /* Note: FDI PLL enabling _must_ be done before we enable the
3281 * cpu pipes, hence this is separate from all the other fdi/pch
3283 ironlake_fdi_pll_enable(intel_crtc);
3285 assert_fdi_tx_disabled(dev_priv, pipe);
3286 assert_fdi_rx_disabled(dev_priv, pipe);
3289 for_each_encoder_on_crtc(dev, crtc, encoder)
3290 if (encoder->pre_enable)
3291 encoder->pre_enable(encoder);
3293 /* Enable panel fitting for LVDS */
3294 ironlake_pfit_enable(intel_crtc);
3297 * On ILK+ LUT must be loaded before the pipe is running but with
3300 intel_crtc_load_lut(crtc);
3302 intel_enable_pipe(dev_priv, pipe,
3303 intel_crtc->config.has_pch_encoder);
3304 intel_enable_plane(dev_priv, plane, pipe);
3306 if (intel_crtc->config.has_pch_encoder)
3307 ironlake_pch_enable(crtc);
3309 mutex_lock(&dev->struct_mutex);
3310 intel_update_fbc(dev);
3311 mutex_unlock(&dev->struct_mutex);
3313 intel_crtc_update_cursor(crtc, true);
3315 for_each_encoder_on_crtc(dev, crtc, encoder)
3316 encoder->enable(encoder);
3318 if (HAS_PCH_CPT(dev))
3319 intel_cpt_verify_modeset(dev, intel_crtc->pipe);
3322 * There seems to be a race in PCH platform hw (at least on some
3323 * outputs) where an enabled pipe still completes any pageflip right
3324 * away (as if the pipe is off) instead of waiting for vblank. As soon
3325 * as the first vblank happend, everything works as expected. Hence just
3326 * wait for one vblank before returning to avoid strange things
3329 intel_wait_for_vblank(dev, intel_crtc->pipe);
3332 static void haswell_crtc_enable(struct drm_crtc *crtc)
3334 struct drm_device *dev = crtc->dev;
3335 struct drm_i915_private *dev_priv = dev->dev_private;
3336 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3337 struct intel_encoder *encoder;
3338 int pipe = intel_crtc->pipe;
3339 int plane = intel_crtc->plane;
3341 WARN_ON(!crtc->enabled);
3343 if (intel_crtc->active)
3346 intel_crtc->active = true;
3348 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3349 if (intel_crtc->config.has_pch_encoder)
3350 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3352 intel_update_watermarks(dev);
3354 if (intel_crtc->config.has_pch_encoder)
3355 dev_priv->display.fdi_link_train(crtc);
3357 for_each_encoder_on_crtc(dev, crtc, encoder)
3358 if (encoder->pre_enable)
3359 encoder->pre_enable(encoder);
3361 intel_ddi_enable_pipe_clock(intel_crtc);
3363 /* Enable panel fitting for eDP */
3364 ironlake_pfit_enable(intel_crtc);
3367 * On ILK+ LUT must be loaded before the pipe is running but with
3370 intel_crtc_load_lut(crtc);
3372 intel_ddi_set_pipe_settings(crtc);
3373 intel_ddi_enable_transcoder_func(crtc);
3375 intel_enable_pipe(dev_priv, pipe,
3376 intel_crtc->config.has_pch_encoder);
3377 intel_enable_plane(dev_priv, plane, pipe);
3379 if (intel_crtc->config.has_pch_encoder)
3380 lpt_pch_enable(crtc);
3382 mutex_lock(&dev->struct_mutex);
3383 intel_update_fbc(dev);
3384 mutex_unlock(&dev->struct_mutex);
3386 intel_crtc_update_cursor(crtc, true);
3388 for_each_encoder_on_crtc(dev, crtc, encoder)
3389 encoder->enable(encoder);
3392 * There seems to be a race in PCH platform hw (at least on some
3393 * outputs) where an enabled pipe still completes any pageflip right
3394 * away (as if the pipe is off) instead of waiting for vblank. As soon
3395 * as the first vblank happend, everything works as expected. Hence just
3396 * wait for one vblank before returning to avoid strange things
3399 intel_wait_for_vblank(dev, intel_crtc->pipe);
3402 static void ironlake_crtc_disable(struct drm_crtc *crtc)
3404 struct drm_device *dev = crtc->dev;
3405 struct drm_i915_private *dev_priv = dev->dev_private;
3406 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3407 struct intel_encoder *encoder;
3408 int pipe = intel_crtc->pipe;
3409 int plane = intel_crtc->plane;
3413 if (!intel_crtc->active)
3416 for_each_encoder_on_crtc(dev, crtc, encoder)
3417 encoder->disable(encoder);
3419 intel_crtc_wait_for_pending_flips(crtc);
3420 drm_vblank_off(dev, pipe);
3421 intel_crtc_update_cursor(crtc, false);
3423 intel_disable_plane(dev_priv, plane, pipe);
3425 if (dev_priv->cfb_plane == plane)
3426 intel_disable_fbc(dev);
3428 intel_set_pch_fifo_underrun_reporting(dev, pipe, false);
3429 intel_disable_pipe(dev_priv, pipe);
3432 I915_WRITE(PF_CTL(pipe), 0);
3433 I915_WRITE(PF_WIN_SZ(pipe), 0);
3435 for_each_encoder_on_crtc(dev, crtc, encoder)
3436 if (encoder->post_disable)
3437 encoder->post_disable(encoder);
3439 ironlake_fdi_disable(crtc);
3441 ironlake_disable_pch_transcoder(dev_priv, pipe);
3442 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3444 if (HAS_PCH_CPT(dev)) {
3445 /* disable TRANS_DP_CTL */
3446 reg = TRANS_DP_CTL(pipe);
3447 temp = I915_READ(reg);
3448 temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK);
3449 temp |= TRANS_DP_PORT_SEL_NONE;
3450 I915_WRITE(reg, temp);
3452 /* disable DPLL_SEL */
3453 temp = I915_READ(PCH_DPLL_SEL);
3456 temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL);
3459 temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
3462 /* C shares PLL A or B */
3463 temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL);
3468 I915_WRITE(PCH_DPLL_SEL, temp);
3471 /* disable PCH DPLL */
3472 intel_disable_pch_pll(intel_crtc);
3474 ironlake_fdi_pll_disable(intel_crtc);
3476 intel_crtc->active = false;
3477 intel_update_watermarks(dev);
3479 mutex_lock(&dev->struct_mutex);
3480 intel_update_fbc(dev);
3481 mutex_unlock(&dev->struct_mutex);
3484 static void haswell_crtc_disable(struct drm_crtc *crtc)
3486 struct drm_device *dev = crtc->dev;
3487 struct drm_i915_private *dev_priv = dev->dev_private;
3488 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3489 struct intel_encoder *encoder;
3490 int pipe = intel_crtc->pipe;
3491 int plane = intel_crtc->plane;
3492 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
3494 if (!intel_crtc->active)
3497 for_each_encoder_on_crtc(dev, crtc, encoder)
3498 encoder->disable(encoder);
3500 intel_crtc_wait_for_pending_flips(crtc);
3501 drm_vblank_off(dev, pipe);
3502 intel_crtc_update_cursor(crtc, false);
3504 intel_disable_plane(dev_priv, plane, pipe);
3506 if (dev_priv->cfb_plane == plane)
3507 intel_disable_fbc(dev);
3509 if (intel_crtc->config.has_pch_encoder)
3510 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false);
3511 intel_disable_pipe(dev_priv, pipe);
3513 intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
3515 /* XXX: Once we have proper panel fitter state tracking implemented with
3516 * hardware state read/check support we should switch to only disable
3517 * the panel fitter when we know it's used. */
3518 if (intel_using_power_well(dev)) {
3519 I915_WRITE(PF_CTL(pipe), 0);
3520 I915_WRITE(PF_WIN_SZ(pipe), 0);
3523 intel_ddi_disable_pipe_clock(intel_crtc);
3525 for_each_encoder_on_crtc(dev, crtc, encoder)
3526 if (encoder->post_disable)
3527 encoder->post_disable(encoder);
3529 if (intel_crtc->config.has_pch_encoder) {
3530 lpt_disable_pch_transcoder(dev_priv);
3531 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3532 intel_ddi_fdi_disable(crtc);
3535 intel_crtc->active = false;
3536 intel_update_watermarks(dev);
3538 mutex_lock(&dev->struct_mutex);
3539 intel_update_fbc(dev);
3540 mutex_unlock(&dev->struct_mutex);
3543 static void ironlake_crtc_off(struct drm_crtc *crtc)
3545 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3546 intel_put_pch_pll(intel_crtc);
3549 static void haswell_crtc_off(struct drm_crtc *crtc)
3551 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3553 /* Stop saying we're using TRANSCODER_EDP because some other CRTC might
3554 * start using it. */
3555 intel_crtc->config.cpu_transcoder = (enum transcoder) intel_crtc->pipe;
3557 intel_ddi_put_crtc_pll(crtc);
3560 static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
3562 if (!enable && intel_crtc->overlay) {
3563 struct drm_device *dev = intel_crtc->base.dev;
3564 struct drm_i915_private *dev_priv = dev->dev_private;
3566 mutex_lock(&dev->struct_mutex);
3567 dev_priv->mm.interruptible = false;
3568 (void) intel_overlay_switch_off(intel_crtc->overlay);
3569 dev_priv->mm.interruptible = true;
3570 mutex_unlock(&dev->struct_mutex);
3573 /* Let userspace switch the overlay on again. In most cases userspace
3574 * has to recompute where to put it anyway.
3579 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
3580 * cursor plane briefly if not already running after enabling the display
3582 * This workaround avoids occasional blank screens when self refresh is
3586 g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe)
3588 u32 cntl = I915_READ(CURCNTR(pipe));
3590 if ((cntl & CURSOR_MODE) == 0) {
3591 u32 fw_bcl_self = I915_READ(FW_BLC_SELF);
3593 I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN);
3594 I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX);
3595 intel_wait_for_vblank(dev_priv->dev, pipe);
3596 I915_WRITE(CURCNTR(pipe), cntl);
3597 I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe)));
3598 I915_WRITE(FW_BLC_SELF, fw_bcl_self);
3602 static void i9xx_pfit_enable(struct intel_crtc *crtc)
3604 struct drm_device *dev = crtc->base.dev;
3605 struct drm_i915_private *dev_priv = dev->dev_private;
3606 struct intel_crtc_config *pipe_config = &crtc->config;
3608 if (!(intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
3609 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)))
3612 WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
3613 assert_pipe_disabled(dev_priv, crtc->pipe);
3616 * Enable automatic panel scaling so that non-native modes
3617 * fill the screen. The panel fitter should only be
3618 * adjusted whilst the pipe is disabled, according to
3619 * register description and PRM.
3621 DRM_DEBUG_KMS("applying panel-fitter: %x, %x\n",
3622 pipe_config->gmch_pfit.control,
3623 pipe_config->gmch_pfit.pgm_ratios);
3625 I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios);
3626 I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control);
3629 static void valleyview_crtc_enable(struct drm_crtc *crtc)
3631 struct drm_device *dev = crtc->dev;
3632 struct drm_i915_private *dev_priv = dev->dev_private;
3633 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3634 struct intel_encoder *encoder;
3635 int pipe = intel_crtc->pipe;
3636 int plane = intel_crtc->plane;
3638 WARN_ON(!crtc->enabled);
3640 if (intel_crtc->active)
3643 intel_crtc->active = true;
3644 intel_update_watermarks(dev);
3646 mutex_lock(&dev_priv->dpio_lock);
3648 for_each_encoder_on_crtc(dev, crtc, encoder)
3649 if (encoder->pre_pll_enable)
3650 encoder->pre_pll_enable(encoder);
3652 intel_enable_pll(dev_priv, pipe);
3654 for_each_encoder_on_crtc(dev, crtc, encoder)
3655 if (encoder->pre_enable)
3656 encoder->pre_enable(encoder);
3658 /* VLV wants encoder enabling _before_ the pipe is up. */
3659 for_each_encoder_on_crtc(dev, crtc, encoder)
3660 encoder->enable(encoder);
3662 /* Enable panel fitting for eDP */
3663 i9xx_pfit_enable(intel_crtc);
3665 intel_enable_pipe(dev_priv, pipe, false);
3666 intel_enable_plane(dev_priv, plane, pipe);
3668 intel_crtc_load_lut(crtc);
3669 intel_update_fbc(dev);
3671 /* Give the overlay scaler a chance to enable if it's on this pipe */
3672 intel_crtc_dpms_overlay(intel_crtc, true);
3673 intel_crtc_update_cursor(crtc, true);
3675 mutex_unlock(&dev_priv->dpio_lock);
3678 static void i9xx_crtc_enable(struct drm_crtc *crtc)
3680 struct drm_device *dev = crtc->dev;
3681 struct drm_i915_private *dev_priv = dev->dev_private;
3682 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3683 struct intel_encoder *encoder;
3684 int pipe = intel_crtc->pipe;
3685 int plane = intel_crtc->plane;
3687 WARN_ON(!crtc->enabled);
3689 if (intel_crtc->active)
3692 intel_crtc->active = true;
3693 intel_update_watermarks(dev);
3695 intel_enable_pll(dev_priv, pipe);
3697 for_each_encoder_on_crtc(dev, crtc, encoder)
3698 if (encoder->pre_enable)
3699 encoder->pre_enable(encoder);
3701 /* Enable panel fitting for LVDS */
3702 i9xx_pfit_enable(intel_crtc);
3704 intel_enable_pipe(dev_priv, pipe, false);
3705 intel_enable_plane(dev_priv, plane, pipe);
3707 g4x_fixup_plane(dev_priv, pipe);
3709 intel_crtc_load_lut(crtc);
3710 intel_update_fbc(dev);
3712 /* Give the overlay scaler a chance to enable if it's on this pipe */
3713 intel_crtc_dpms_overlay(intel_crtc, true);
3714 intel_crtc_update_cursor(crtc, true);
3716 for_each_encoder_on_crtc(dev, crtc, encoder)
3717 encoder->enable(encoder);
3720 static void i9xx_pfit_disable(struct intel_crtc *crtc)
3722 struct drm_device *dev = crtc->base.dev;
3723 struct drm_i915_private *dev_priv = dev->dev_private;
3725 uint32_t pctl = I915_READ(PFIT_CONTROL);
3727 assert_pipe_disabled(dev_priv, crtc->pipe);
3729 if (INTEL_INFO(dev)->gen >= 4)
3730 pipe = (pctl & PFIT_PIPE_MASK) >> PFIT_PIPE_SHIFT;
3734 if (pipe == crtc->pipe) {
3735 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n", pctl);
3736 I915_WRITE(PFIT_CONTROL, 0);
3740 static void i9xx_crtc_disable(struct drm_crtc *crtc)
3742 struct drm_device *dev = crtc->dev;
3743 struct drm_i915_private *dev_priv = dev->dev_private;
3744 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3745 struct intel_encoder *encoder;
3746 int pipe = intel_crtc->pipe;
3747 int plane = intel_crtc->plane;
3749 if (!intel_crtc->active)
3752 for_each_encoder_on_crtc(dev, crtc, encoder)
3753 encoder->disable(encoder);
3755 /* Give the overlay scaler a chance to disable if it's on this pipe */
3756 intel_crtc_wait_for_pending_flips(crtc);
3757 drm_vblank_off(dev, pipe);
3758 intel_crtc_dpms_overlay(intel_crtc, false);
3759 intel_crtc_update_cursor(crtc, false);
3761 if (dev_priv->cfb_plane == plane)
3762 intel_disable_fbc(dev);
3764 intel_disable_plane(dev_priv, plane, pipe);
3765 intel_disable_pipe(dev_priv, pipe);
3767 i9xx_pfit_disable(intel_crtc);
3769 for_each_encoder_on_crtc(dev, crtc, encoder)
3770 if (encoder->post_disable)
3771 encoder->post_disable(encoder);
3773 intel_disable_pll(dev_priv, pipe);
3775 intel_crtc->active = false;
3776 intel_update_fbc(dev);
3777 intel_update_watermarks(dev);
3780 static void i9xx_crtc_off(struct drm_crtc *crtc)
3784 static void intel_crtc_update_sarea(struct drm_crtc *crtc,
3787 struct drm_device *dev = crtc->dev;
3788 struct drm_i915_master_private *master_priv;
3789 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3790 int pipe = intel_crtc->pipe;
3792 if (!dev->primary->master)
3795 master_priv = dev->primary->master->driver_priv;
3796 if (!master_priv->sarea_priv)
3801 master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
3802 master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
3805 master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
3806 master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
3809 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
3815 * Sets the power management mode of the pipe and plane.
3817 void intel_crtc_update_dpms(struct drm_crtc *crtc)
3819 struct drm_device *dev = crtc->dev;
3820 struct drm_i915_private *dev_priv = dev->dev_private;
3821 struct intel_encoder *intel_encoder;
3822 bool enable = false;
3824 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
3825 enable |= intel_encoder->connectors_active;
3828 dev_priv->display.crtc_enable(crtc);
3830 dev_priv->display.crtc_disable(crtc);
3832 intel_crtc_update_sarea(crtc, enable);
3835 static void intel_crtc_disable(struct drm_crtc *crtc)
3837 struct drm_device *dev = crtc->dev;
3838 struct drm_connector *connector;
3839 struct drm_i915_private *dev_priv = dev->dev_private;
3840 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3842 /* crtc should still be enabled when we disable it. */
3843 WARN_ON(!crtc->enabled);
3845 intel_crtc->eld_vld = false;
3846 dev_priv->display.crtc_disable(crtc);
3847 intel_crtc_update_sarea(crtc, false);
3848 dev_priv->display.off(crtc);
3850 assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
3851 assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
3854 mutex_lock(&dev->struct_mutex);
3855 intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
3856 mutex_unlock(&dev->struct_mutex);
3860 /* Update computed state. */
3861 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3862 if (!connector->encoder || !connector->encoder->crtc)
3865 if (connector->encoder->crtc != crtc)
3868 connector->dpms = DRM_MODE_DPMS_OFF;
3869 to_intel_encoder(connector->encoder)->connectors_active = false;
3873 void intel_modeset_disable(struct drm_device *dev)
3875 struct drm_crtc *crtc;
3877 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
3879 intel_crtc_disable(crtc);
3883 void intel_encoder_destroy(struct drm_encoder *encoder)
3885 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
3887 drm_encoder_cleanup(encoder);
3888 kfree(intel_encoder);
3891 /* Simple dpms helper for encodres with just one connector, no cloning and only
3892 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
3893 * state of the entire output pipe. */
3894 void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
3896 if (mode == DRM_MODE_DPMS_ON) {
3897 encoder->connectors_active = true;
3899 intel_crtc_update_dpms(encoder->base.crtc);
3901 encoder->connectors_active = false;
3903 intel_crtc_update_dpms(encoder->base.crtc);
3907 /* Cross check the actual hw state with our own modeset state tracking (and it's
3908 * internal consistency). */
3909 static void intel_connector_check_state(struct intel_connector *connector)
3911 if (connector->get_hw_state(connector)) {
3912 struct intel_encoder *encoder = connector->encoder;
3913 struct drm_crtc *crtc;
3914 bool encoder_enabled;
3917 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
3918 connector->base.base.id,
3919 drm_get_connector_name(&connector->base));
3921 WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
3922 "wrong connector dpms state\n");
3923 WARN(connector->base.encoder != &encoder->base,
3924 "active connector not linked to encoder\n");
3925 WARN(!encoder->connectors_active,
3926 "encoder->connectors_active not set\n");
3928 encoder_enabled = encoder->get_hw_state(encoder, &pipe);
3929 WARN(!encoder_enabled, "encoder not enabled\n");
3930 if (WARN_ON(!encoder->base.crtc))
3933 crtc = encoder->base.crtc;
3935 WARN(!crtc->enabled, "crtc not enabled\n");
3936 WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
3937 WARN(pipe != to_intel_crtc(crtc)->pipe,
3938 "encoder active on the wrong pipe\n");
3942 /* Even simpler default implementation, if there's really no special case to
3944 void intel_connector_dpms(struct drm_connector *connector, int mode)
3946 struct intel_encoder *encoder = intel_attached_encoder(connector);
3948 /* All the simple cases only support two dpms states. */
3949 if (mode != DRM_MODE_DPMS_ON)
3950 mode = DRM_MODE_DPMS_OFF;
3952 if (mode == connector->dpms)
3955 connector->dpms = mode;
3957 /* Only need to change hw state when actually enabled */
3958 if (encoder->base.crtc)
3959 intel_encoder_dpms(encoder, mode);
3961 WARN_ON(encoder->connectors_active != false);
3963 intel_modeset_check_state(connector->dev);
3966 /* Simple connector->get_hw_state implementation for encoders that support only
3967 * one connector and no cloning and hence the encoder state determines the state
3968 * of the connector. */
3969 bool intel_connector_get_hw_state(struct intel_connector *connector)
3972 struct intel_encoder *encoder = connector->encoder;
3974 return encoder->get_hw_state(encoder, &pipe);
3977 static bool intel_crtc_compute_config(struct drm_crtc *crtc,
3978 struct intel_crtc_config *pipe_config)
3980 struct drm_device *dev = crtc->dev;
3981 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
3983 if (HAS_PCH_SPLIT(dev)) {
3984 /* FDI link clock is fixed at 2.7G */
3985 if (pipe_config->requested_mode.clock * 3
3986 > IRONLAKE_FDI_FREQ * 4)
3990 /* All interlaced capable intel hw wants timings in frames. Note though
3991 * that intel_lvds_mode_fixup does some funny tricks with the crtc
3992 * timings, so we need to be careful not to clobber these.*/
3993 if (!pipe_config->timings_set)
3994 drm_mode_set_crtcinfo(adjusted_mode, 0);
3996 /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes
3997 * with a hsync front porch of 0.
3999 if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) &&
4000 adjusted_mode->hsync_start == adjusted_mode->hdisplay)
4003 if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) {
4004 pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */
4005 } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) {
4006 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
4008 pipe_config->pipe_bpp = 8*3;
4014 static int valleyview_get_display_clock_speed(struct drm_device *dev)
4016 return 400000; /* FIXME */
4019 static int i945_get_display_clock_speed(struct drm_device *dev)
4024 static int i915_get_display_clock_speed(struct drm_device *dev)
4029 static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
4034 static int i915gm_get_display_clock_speed(struct drm_device *dev)
4038 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4040 if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
4043 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4044 case GC_DISPLAY_CLOCK_333_MHZ:
4047 case GC_DISPLAY_CLOCK_190_200_MHZ:
4053 static int i865_get_display_clock_speed(struct drm_device *dev)
4058 static int i855_get_display_clock_speed(struct drm_device *dev)
4061 /* Assume that the hardware is in the high speed state. This
4062 * should be the default.
4064 switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
4065 case GC_CLOCK_133_200:
4066 case GC_CLOCK_100_200:
4068 case GC_CLOCK_166_250:
4070 case GC_CLOCK_100_133:
4074 /* Shouldn't happen */
4078 static int i830_get_display_clock_speed(struct drm_device *dev)
4084 intel_reduce_ratio(uint32_t *num, uint32_t *den)
4086 while (*num > 0xffffff || *den > 0xffffff) {
4093 intel_link_compute_m_n(int bits_per_pixel, int nlanes,
4094 int pixel_clock, int link_clock,
4095 struct intel_link_m_n *m_n)
4098 m_n->gmch_m = bits_per_pixel * pixel_clock;
4099 m_n->gmch_n = link_clock * nlanes * 8;
4100 intel_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n);
4101 m_n->link_m = pixel_clock;
4102 m_n->link_n = link_clock;
4103 intel_reduce_ratio(&m_n->link_m, &m_n->link_n);
4106 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
4108 if (i915_panel_use_ssc >= 0)
4109 return i915_panel_use_ssc != 0;
4110 return dev_priv->lvds_use_ssc
4111 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
4114 static int vlv_get_refclk(struct drm_crtc *crtc)
4116 struct drm_device *dev = crtc->dev;
4117 struct drm_i915_private *dev_priv = dev->dev_private;
4118 int refclk = 27000; /* for DP & HDMI */
4120 return 100000; /* only one validated so far */
4122 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
4124 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
4125 if (intel_panel_use_ssc(dev_priv))
4129 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
4136 static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
4138 struct drm_device *dev = crtc->dev;
4139 struct drm_i915_private *dev_priv = dev->dev_private;
4142 if (IS_VALLEYVIEW(dev)) {
4143 refclk = vlv_get_refclk(crtc);
4144 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
4145 intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
4146 refclk = dev_priv->lvds_ssc_freq * 1000;
4147 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4149 } else if (!IS_GEN2(dev)) {
4158 static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc *crtc)
4160 unsigned dotclock = crtc->config.adjusted_mode.clock;
4161 struct dpll *clock = &crtc->config.dpll;
4163 /* SDVO TV has fixed PLL values depend on its clock range,
4164 this mirrors vbios setting. */
4165 if (dotclock >= 100000 && dotclock < 140500) {
4171 } else if (dotclock >= 140500 && dotclock <= 200000) {
4179 crtc->config.clock_set = true;
4182 static uint32_t pnv_dpll_compute_fp(struct dpll *dpll)
4184 return (1 << dpll->n) << 16 | dpll->m1 << 8 | dpll->m2;
4187 static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll)
4189 return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
4192 static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
4193 intel_clock_t *reduced_clock)
4195 struct drm_device *dev = crtc->base.dev;
4196 struct drm_i915_private *dev_priv = dev->dev_private;
4197 int pipe = crtc->pipe;
4200 if (IS_PINEVIEW(dev)) {
4201 fp = pnv_dpll_compute_fp(&crtc->config.dpll);
4203 fp2 = pnv_dpll_compute_fp(reduced_clock);
4205 fp = i9xx_dpll_compute_fp(&crtc->config.dpll);
4207 fp2 = i9xx_dpll_compute_fp(reduced_clock);
4210 I915_WRITE(FP0(pipe), fp);
4212 crtc->lowfreq_avail = false;
4213 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4214 reduced_clock && i915_powersave) {
4215 I915_WRITE(FP1(pipe), fp2);
4216 crtc->lowfreq_avail = true;
4218 I915_WRITE(FP1(pipe), fp);
4222 static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv)
4227 * PLLB opamp always calibrates to max value of 0x3f, force enable it
4228 * and set it to a reasonable value instead.
4230 reg_val = intel_dpio_read(dev_priv, DPIO_IREF(1));
4231 reg_val &= 0xffffff00;
4232 reg_val |= 0x00000030;
4233 intel_dpio_write(dev_priv, DPIO_IREF(1), reg_val);
4235 reg_val = intel_dpio_read(dev_priv, DPIO_CALIBRATION);
4236 reg_val &= 0x8cffffff;
4237 reg_val = 0x8c000000;
4238 intel_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val);
4240 reg_val = intel_dpio_read(dev_priv, DPIO_IREF(1));
4241 reg_val &= 0xffffff00;
4242 intel_dpio_write(dev_priv, DPIO_IREF(1), reg_val);
4244 reg_val = intel_dpio_read(dev_priv, DPIO_CALIBRATION);
4245 reg_val &= 0x00ffffff;
4246 reg_val |= 0xb0000000;
4247 intel_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val);
4250 static void intel_dp_set_m_n(struct intel_crtc *crtc)
4252 if (crtc->config.has_pch_encoder)
4253 intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4255 intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4258 static void vlv_update_pll(struct intel_crtc *crtc)
4260 struct drm_device *dev = crtc->base.dev;
4261 struct drm_i915_private *dev_priv = dev->dev_private;
4262 struct drm_display_mode *adjusted_mode =
4263 &crtc->config.adjusted_mode;
4264 struct intel_encoder *encoder;
4265 int pipe = crtc->pipe;
4267 u32 bestn, bestm1, bestm2, bestp1, bestp2;
4269 u32 coreclk, reg_val, dpll_md;
4271 mutex_lock(&dev_priv->dpio_lock);
4273 is_hdmi = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
4275 bestn = crtc->config.dpll.n;
4276 bestm1 = crtc->config.dpll.m1;
4277 bestm2 = crtc->config.dpll.m2;
4278 bestp1 = crtc->config.dpll.p1;
4279 bestp2 = crtc->config.dpll.p2;
4281 /* See eDP HDMI DPIO driver vbios notes doc */
4283 /* PLL B needs special handling */
4285 vlv_pllb_recal_opamp(dev_priv);
4287 /* Set up Tx target for periodic Rcomp update */
4288 intel_dpio_write(dev_priv, DPIO_IREF_BCAST, 0x0100000f);
4290 /* Disable target IRef on PLL */
4291 reg_val = intel_dpio_read(dev_priv, DPIO_IREF_CTL(pipe));
4292 reg_val &= 0x00ffffff;
4293 intel_dpio_write(dev_priv, DPIO_IREF_CTL(pipe), reg_val);
4295 /* Disable fast lock */
4296 intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x610);
4298 /* Set idtafcrecal before PLL is enabled */
4299 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
4300 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
4301 mdiv |= ((bestn << DPIO_N_SHIFT));
4302 mdiv |= (1 << DPIO_K_SHIFT);
4303 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI) ||
4304 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
4305 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
4306 mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
4307 intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
4309 mdiv |= DPIO_ENABLE_CALIBRATION;
4310 intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
4312 /* Set HBR and RBR LPF coefficients */
4313 if (adjusted_mode->clock == 162000 ||
4314 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI))
4315 intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe),
4318 intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe),
4321 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
4322 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) {
4323 /* Use SSC source */
4325 intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4328 intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4330 } else { /* HDMI or VGA */
4331 /* Use bend source */
4333 intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4336 intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4340 coreclk = intel_dpio_read(dev_priv, DPIO_CORE_CLK(pipe));
4341 coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
4342 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) ||
4343 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP))
4344 coreclk |= 0x01000000;
4345 intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), coreclk);
4347 intel_dpio_write(dev_priv, DPIO_PLL_CML(pipe), 0x87871000);
4349 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
4350 if (encoder->pre_pll_enable)
4351 encoder->pre_pll_enable(encoder);
4353 /* Enable DPIO clock input */
4354 dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
4355 DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
4357 dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
4359 dpll |= DPLL_VCO_ENABLE;
4360 I915_WRITE(DPLL(pipe), dpll);
4361 POSTING_READ(DPLL(pipe));
4364 if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
4365 DRM_ERROR("DPLL %d failed to lock\n", pipe);
4368 if (crtc->config.pixel_multiplier > 1) {
4369 dpll_md = (crtc->config.pixel_multiplier - 1)
4370 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4372 I915_WRITE(DPLL_MD(pipe), dpll_md);
4373 POSTING_READ(DPLL_MD(pipe));
4375 if (crtc->config.has_dp_encoder)
4376 intel_dp_set_m_n(crtc);
4378 mutex_unlock(&dev_priv->dpio_lock);
4381 static void i9xx_update_pll(struct intel_crtc *crtc,
4382 intel_clock_t *reduced_clock,
4385 struct drm_device *dev = crtc->base.dev;
4386 struct drm_i915_private *dev_priv = dev->dev_private;
4387 struct intel_encoder *encoder;
4388 int pipe = crtc->pipe;
4391 struct dpll *clock = &crtc->config.dpll;
4393 i9xx_update_pll_dividers(crtc, reduced_clock);
4395 is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
4396 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
4398 dpll = DPLL_VGA_MODE_DIS;
4400 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS))
4401 dpll |= DPLLB_MODE_LVDS;
4403 dpll |= DPLLB_MODE_DAC_SERIAL;
4405 if ((crtc->config.pixel_multiplier > 1) &&
4406 (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))) {
4407 dpll |= (crtc->config.pixel_multiplier - 1)
4408 << SDVO_MULTIPLIER_SHIFT_HIRES;
4412 dpll |= DPLL_DVO_HIGH_SPEED;
4414 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
4415 dpll |= DPLL_DVO_HIGH_SPEED;
4417 /* compute bitmask from p1 value */
4418 if (IS_PINEVIEW(dev))
4419 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
4421 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4422 if (IS_G4X(dev) && reduced_clock)
4423 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
4425 switch (clock->p2) {
4427 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
4430 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
4433 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
4436 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
4439 if (INTEL_INFO(dev)->gen >= 4)
4440 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
4442 if (is_sdvo && intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_TVOUT))
4443 dpll |= PLL_REF_INPUT_TVCLKINBC;
4444 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_TVOUT))
4445 /* XXX: just matching BIOS for now */
4446 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4448 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4449 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4450 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4452 dpll |= PLL_REF_INPUT_DREFCLK;
4454 dpll |= DPLL_VCO_ENABLE;
4455 I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
4456 POSTING_READ(DPLL(pipe));
4459 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
4460 if (encoder->pre_pll_enable)
4461 encoder->pre_pll_enable(encoder);
4463 if (crtc->config.has_dp_encoder)
4464 intel_dp_set_m_n(crtc);
4466 I915_WRITE(DPLL(pipe), dpll);
4468 /* Wait for the clocks to stabilize. */
4469 POSTING_READ(DPLL(pipe));
4472 if (INTEL_INFO(dev)->gen >= 4) {
4474 if (crtc->config.pixel_multiplier > 1) {
4475 dpll_md = (crtc->config.pixel_multiplier - 1)
4476 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4478 I915_WRITE(DPLL_MD(pipe), dpll_md);
4480 /* The pixel multiplier can only be updated once the
4481 * DPLL is enabled and the clocks are stable.
4483 * So write it again.
4485 I915_WRITE(DPLL(pipe), dpll);
4489 static void i8xx_update_pll(struct intel_crtc *crtc,
4490 struct drm_display_mode *adjusted_mode,
4491 intel_clock_t *reduced_clock,
4494 struct drm_device *dev = crtc->base.dev;
4495 struct drm_i915_private *dev_priv = dev->dev_private;
4496 struct intel_encoder *encoder;
4497 int pipe = crtc->pipe;
4499 struct dpll *clock = &crtc->config.dpll;
4501 i9xx_update_pll_dividers(crtc, reduced_clock);
4503 dpll = DPLL_VGA_MODE_DIS;
4505 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
4506 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4509 dpll |= PLL_P1_DIVIDE_BY_TWO;
4511 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4513 dpll |= PLL_P2_DIVIDE_BY_4;
4516 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4517 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4518 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4520 dpll |= PLL_REF_INPUT_DREFCLK;
4522 dpll |= DPLL_VCO_ENABLE;
4523 I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
4524 POSTING_READ(DPLL(pipe));
4527 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
4528 if (encoder->pre_pll_enable)
4529 encoder->pre_pll_enable(encoder);
4531 I915_WRITE(DPLL(pipe), dpll);
4533 /* Wait for the clocks to stabilize. */
4534 POSTING_READ(DPLL(pipe));
4537 /* The pixel multiplier can only be updated once the
4538 * DPLL is enabled and the clocks are stable.
4540 * So write it again.
4542 I915_WRITE(DPLL(pipe), dpll);
4545 static void intel_set_pipe_timings(struct intel_crtc *intel_crtc,
4546 struct drm_display_mode *mode,
4547 struct drm_display_mode *adjusted_mode)
4549 struct drm_device *dev = intel_crtc->base.dev;
4550 struct drm_i915_private *dev_priv = dev->dev_private;
4551 enum pipe pipe = intel_crtc->pipe;
4552 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
4553 uint32_t vsyncshift;
4555 if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
4556 /* the chip adds 2 halflines automatically */
4557 adjusted_mode->crtc_vtotal -= 1;
4558 adjusted_mode->crtc_vblank_end -= 1;
4559 vsyncshift = adjusted_mode->crtc_hsync_start
4560 - adjusted_mode->crtc_htotal / 2;
4565 if (INTEL_INFO(dev)->gen > 3)
4566 I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
4568 I915_WRITE(HTOTAL(cpu_transcoder),
4569 (adjusted_mode->crtc_hdisplay - 1) |
4570 ((adjusted_mode->crtc_htotal - 1) << 16));
4571 I915_WRITE(HBLANK(cpu_transcoder),
4572 (adjusted_mode->crtc_hblank_start - 1) |
4573 ((adjusted_mode->crtc_hblank_end - 1) << 16));
4574 I915_WRITE(HSYNC(cpu_transcoder),
4575 (adjusted_mode->crtc_hsync_start - 1) |
4576 ((adjusted_mode->crtc_hsync_end - 1) << 16));
4578 I915_WRITE(VTOTAL(cpu_transcoder),
4579 (adjusted_mode->crtc_vdisplay - 1) |
4580 ((adjusted_mode->crtc_vtotal - 1) << 16));
4581 I915_WRITE(VBLANK(cpu_transcoder),
4582 (adjusted_mode->crtc_vblank_start - 1) |
4583 ((adjusted_mode->crtc_vblank_end - 1) << 16));
4584 I915_WRITE(VSYNC(cpu_transcoder),
4585 (adjusted_mode->crtc_vsync_start - 1) |
4586 ((adjusted_mode->crtc_vsync_end - 1) << 16));
4588 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
4589 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
4590 * documented on the DDI_FUNC_CTL register description, EDP Input Select
4592 if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP &&
4593 (pipe == PIPE_B || pipe == PIPE_C))
4594 I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
4596 /* pipesrc controls the size that is scaled from, which should
4597 * always be the user's requested size.
4599 I915_WRITE(PIPESRC(pipe),
4600 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
4603 static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
4605 struct drm_device *dev = intel_crtc->base.dev;
4606 struct drm_i915_private *dev_priv = dev->dev_private;
4609 pipeconf = I915_READ(PIPECONF(intel_crtc->pipe));
4611 if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) {
4612 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4615 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4618 if (intel_crtc->config.requested_mode.clock >
4619 dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
4620 pipeconf |= PIPECONF_DOUBLE_WIDE;
4622 pipeconf &= ~PIPECONF_DOUBLE_WIDE;
4625 /* only g4x and later have fancy bpc/dither controls */
4626 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
4627 pipeconf &= ~(PIPECONF_BPC_MASK |
4628 PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
4630 /* Bspec claims that we can't use dithering for 30bpp pipes. */
4631 if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30)
4632 pipeconf |= PIPECONF_DITHER_EN |
4633 PIPECONF_DITHER_TYPE_SP;
4635 switch (intel_crtc->config.pipe_bpp) {
4637 pipeconf |= PIPECONF_6BPC;
4640 pipeconf |= PIPECONF_8BPC;
4643 pipeconf |= PIPECONF_10BPC;
4646 /* Case prevented by intel_choose_pipe_bpp_dither. */
4651 if (HAS_PIPE_CXSR(dev)) {
4652 if (intel_crtc->lowfreq_avail) {
4653 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4654 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
4656 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
4657 pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
4661 pipeconf &= ~PIPECONF_INTERLACE_MASK;
4662 if (!IS_GEN2(dev) &&
4663 intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
4664 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
4666 pipeconf |= PIPECONF_PROGRESSIVE;
4668 if (IS_VALLEYVIEW(dev)) {
4669 if (intel_crtc->config.limited_color_range)
4670 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
4672 pipeconf &= ~PIPECONF_COLOR_RANGE_SELECT;
4675 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
4676 POSTING_READ(PIPECONF(intel_crtc->pipe));
4679 static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
4681 struct drm_framebuffer *fb)
4683 struct drm_device *dev = crtc->dev;
4684 struct drm_i915_private *dev_priv = dev->dev_private;
4685 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4686 struct drm_display_mode *adjusted_mode =
4687 &intel_crtc->config.adjusted_mode;
4688 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
4689 int pipe = intel_crtc->pipe;
4690 int plane = intel_crtc->plane;
4691 int refclk, num_connectors = 0;
4692 intel_clock_t clock, reduced_clock;
4694 bool ok, has_reduced_clock = false, is_sdvo = false;
4695 bool is_lvds = false, is_tv = false;
4696 struct intel_encoder *encoder;
4697 const intel_limit_t *limit;
4700 for_each_encoder_on_crtc(dev, crtc, encoder) {
4701 switch (encoder->type) {
4702 case INTEL_OUTPUT_LVDS:
4705 case INTEL_OUTPUT_SDVO:
4706 case INTEL_OUTPUT_HDMI:
4708 if (encoder->needs_tv_clock)
4711 case INTEL_OUTPUT_TVOUT:
4719 refclk = i9xx_get_refclk(crtc, num_connectors);
4722 * Returns a set of divisors for the desired target clock with the given
4723 * refclk, or FALSE. The returned values represent the clock equation:
4724 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4726 limit = intel_limit(crtc, refclk);
4727 ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL,
4730 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4734 /* Ensure that the cursor is valid for the new mode before changing... */
4735 intel_crtc_update_cursor(crtc, true);
4737 if (is_lvds && dev_priv->lvds_downclock_avail) {
4739 * Ensure we match the reduced clock's P to the target clock.
4740 * If the clocks don't match, we can't switch the display clock
4741 * by using the FP0/FP1. In such case we will disable the LVDS
4742 * downclock feature.
4744 has_reduced_clock = limit->find_pll(limit, crtc,
4745 dev_priv->lvds_downclock,
4750 /* Compat-code for transition, will disappear. */
4751 if (!intel_crtc->config.clock_set) {
4752 intel_crtc->config.dpll.n = clock.n;
4753 intel_crtc->config.dpll.m1 = clock.m1;
4754 intel_crtc->config.dpll.m2 = clock.m2;
4755 intel_crtc->config.dpll.p1 = clock.p1;
4756 intel_crtc->config.dpll.p2 = clock.p2;
4759 if (is_sdvo && is_tv)
4760 i9xx_adjust_sdvo_tv_clock(intel_crtc);
4763 i8xx_update_pll(intel_crtc, adjusted_mode,
4764 has_reduced_clock ? &reduced_clock : NULL,
4766 else if (IS_VALLEYVIEW(dev))
4767 vlv_update_pll(intel_crtc);
4769 i9xx_update_pll(intel_crtc,
4770 has_reduced_clock ? &reduced_clock : NULL,
4773 /* Set up the display plane register */
4774 dspcntr = DISPPLANE_GAMMA_ENABLE;
4776 if (!IS_VALLEYVIEW(dev)) {
4778 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
4780 dspcntr |= DISPPLANE_SEL_PIPE_B;
4783 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe_name(pipe));
4784 drm_mode_debug_printmodeline(mode);
4786 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
4788 /* pipesrc and dspsize control the size that is scaled from,
4789 * which should always be the user's requested size.
4791 I915_WRITE(DSPSIZE(plane),
4792 ((mode->vdisplay - 1) << 16) |
4793 (mode->hdisplay - 1));
4794 I915_WRITE(DSPPOS(plane), 0);
4796 i9xx_set_pipeconf(intel_crtc);
4798 I915_WRITE(DSPCNTR(plane), dspcntr);
4799 POSTING_READ(DSPCNTR(plane));
4801 ret = intel_pipe_set_base(crtc, x, y, fb);
4803 intel_update_watermarks(dev);
4808 static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
4809 struct intel_crtc_config *pipe_config)
4811 struct drm_device *dev = crtc->base.dev;
4812 struct drm_i915_private *dev_priv = dev->dev_private;
4815 tmp = I915_READ(PIPECONF(crtc->pipe));
4816 if (!(tmp & PIPECONF_ENABLE))
4822 static void ironlake_init_pch_refclk(struct drm_device *dev)
4824 struct drm_i915_private *dev_priv = dev->dev_private;
4825 struct drm_mode_config *mode_config = &dev->mode_config;
4826 struct intel_encoder *encoder;
4828 bool has_lvds = false;
4829 bool has_cpu_edp = false;
4830 bool has_pch_edp = false;
4831 bool has_panel = false;
4832 bool has_ck505 = false;
4833 bool can_ssc = false;
4835 /* We need to take the global config into account */
4836 list_for_each_entry(encoder, &mode_config->encoder_list,
4838 switch (encoder->type) {
4839 case INTEL_OUTPUT_LVDS:
4843 case INTEL_OUTPUT_EDP:
4845 if (intel_encoder_is_pch_edp(&encoder->base))
4853 if (HAS_PCH_IBX(dev)) {
4854 has_ck505 = dev_priv->display_clock_mode;
4855 can_ssc = has_ck505;
4861 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n",
4862 has_panel, has_lvds, has_pch_edp, has_cpu_edp,
4865 /* Ironlake: try to setup display ref clock before DPLL
4866 * enabling. This is only under driver's control after
4867 * PCH B stepping, previous chipset stepping should be
4868 * ignoring this setting.
4870 val = I915_READ(PCH_DREF_CONTROL);
4872 /* As we must carefully and slowly disable/enable each source in turn,
4873 * compute the final state we want first and check if we need to
4874 * make any changes at all.
4877 final &= ~DREF_NONSPREAD_SOURCE_MASK;
4879 final |= DREF_NONSPREAD_CK505_ENABLE;
4881 final |= DREF_NONSPREAD_SOURCE_ENABLE;
4883 final &= ~DREF_SSC_SOURCE_MASK;
4884 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
4885 final &= ~DREF_SSC1_ENABLE;
4888 final |= DREF_SSC_SOURCE_ENABLE;
4890 if (intel_panel_use_ssc(dev_priv) && can_ssc)
4891 final |= DREF_SSC1_ENABLE;
4894 if (intel_panel_use_ssc(dev_priv) && can_ssc)
4895 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
4897 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
4899 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
4901 final |= DREF_SSC_SOURCE_DISABLE;
4902 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
4908 /* Always enable nonspread source */
4909 val &= ~DREF_NONSPREAD_SOURCE_MASK;
4912 val |= DREF_NONSPREAD_CK505_ENABLE;
4914 val |= DREF_NONSPREAD_SOURCE_ENABLE;
4917 val &= ~DREF_SSC_SOURCE_MASK;
4918 val |= DREF_SSC_SOURCE_ENABLE;
4920 /* SSC must be turned on before enabling the CPU output */
4921 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
4922 DRM_DEBUG_KMS("Using SSC on panel\n");
4923 val |= DREF_SSC1_ENABLE;
4925 val &= ~DREF_SSC1_ENABLE;
4927 /* Get SSC going before enabling the outputs */
4928 I915_WRITE(PCH_DREF_CONTROL, val);
4929 POSTING_READ(PCH_DREF_CONTROL);
4932 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
4934 /* Enable CPU source on CPU attached eDP */
4936 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
4937 DRM_DEBUG_KMS("Using SSC on eDP\n");
4938 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
4941 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
4943 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
4945 I915_WRITE(PCH_DREF_CONTROL, val);
4946 POSTING_READ(PCH_DREF_CONTROL);
4949 DRM_DEBUG_KMS("Disabling SSC entirely\n");
4951 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
4953 /* Turn off CPU output */
4954 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
4956 I915_WRITE(PCH_DREF_CONTROL, val);
4957 POSTING_READ(PCH_DREF_CONTROL);
4960 /* Turn off the SSC source */
4961 val &= ~DREF_SSC_SOURCE_MASK;
4962 val |= DREF_SSC_SOURCE_DISABLE;
4965 val &= ~DREF_SSC1_ENABLE;
4967 I915_WRITE(PCH_DREF_CONTROL, val);
4968 POSTING_READ(PCH_DREF_CONTROL);
4972 BUG_ON(val != final);
4975 /* Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O. */
4976 static void lpt_init_pch_refclk(struct drm_device *dev)
4978 struct drm_i915_private *dev_priv = dev->dev_private;
4979 struct drm_mode_config *mode_config = &dev->mode_config;
4980 struct intel_encoder *encoder;
4981 bool has_vga = false;
4982 bool is_sdv = false;
4985 list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
4986 switch (encoder->type) {
4987 case INTEL_OUTPUT_ANALOG:
4996 mutex_lock(&dev_priv->dpio_lock);
4998 /* XXX: Rip out SDV support once Haswell ships for real. */
4999 if (IS_HASWELL(dev) && (dev->pci_device & 0xFF00) == 0x0C00)
5002 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5003 tmp &= ~SBI_SSCCTL_DISABLE;
5004 tmp |= SBI_SSCCTL_PATHALT;
5005 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5009 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5010 tmp &= ~SBI_SSCCTL_PATHALT;
5011 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5014 tmp = I915_READ(SOUTH_CHICKEN2);
5015 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
5016 I915_WRITE(SOUTH_CHICKEN2, tmp);
5018 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
5019 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
5020 DRM_ERROR("FDI mPHY reset assert timeout\n");
5022 tmp = I915_READ(SOUTH_CHICKEN2);
5023 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
5024 I915_WRITE(SOUTH_CHICKEN2, tmp);
5026 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
5027 FDI_MPHY_IOSFSB_RESET_STATUS) == 0,
5029 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
5032 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
5033 tmp &= ~(0xFF << 24);
5034 tmp |= (0x12 << 24);
5035 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
5038 tmp = intel_sbi_read(dev_priv, 0x800C, SBI_MPHY);
5040 intel_sbi_write(dev_priv, 0x800C, tmp, SBI_MPHY);
5043 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
5045 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
5047 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
5049 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
5052 tmp = intel_sbi_read(dev_priv, 0x2038, SBI_MPHY);
5053 tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16);
5054 intel_sbi_write(dev_priv, 0x2038, tmp, SBI_MPHY);
5056 tmp = intel_sbi_read(dev_priv, 0x2138, SBI_MPHY);
5057 tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16);
5058 intel_sbi_write(dev_priv, 0x2138, tmp, SBI_MPHY);
5060 tmp = intel_sbi_read(dev_priv, 0x203C, SBI_MPHY);
5062 intel_sbi_write(dev_priv, 0x203C, tmp, SBI_MPHY);
5064 tmp = intel_sbi_read(dev_priv, 0x213C, SBI_MPHY);
5066 intel_sbi_write(dev_priv, 0x213C, tmp, SBI_MPHY);
5069 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
5070 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5071 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
5073 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
5074 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5075 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
5078 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
5081 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
5083 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
5086 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
5089 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
5092 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
5094 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
5097 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
5099 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
5100 tmp &= ~(0xFF << 16);
5101 tmp |= (0x1C << 16);
5102 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
5104 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
5105 tmp &= ~(0xFF << 16);
5106 tmp |= (0x1C << 16);
5107 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
5110 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
5112 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
5114 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
5116 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
5118 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
5119 tmp &= ~(0xF << 28);
5121 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
5123 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
5124 tmp &= ~(0xF << 28);
5126 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
5129 /* ULT uses SBI_GEN0, but ULT doesn't have VGA, so we don't care. */
5130 tmp = intel_sbi_read(dev_priv, SBI_DBUFF0, SBI_ICLK);
5131 tmp |= SBI_DBUFF0_ENABLE;
5132 intel_sbi_write(dev_priv, SBI_DBUFF0, tmp, SBI_ICLK);
5134 mutex_unlock(&dev_priv->dpio_lock);
5138 * Initialize reference clocks when the driver loads
5140 void intel_init_pch_refclk(struct drm_device *dev)
5142 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
5143 ironlake_init_pch_refclk(dev);
5144 else if (HAS_PCH_LPT(dev))
5145 lpt_init_pch_refclk(dev);
5148 static int ironlake_get_refclk(struct drm_crtc *crtc)
5150 struct drm_device *dev = crtc->dev;
5151 struct drm_i915_private *dev_priv = dev->dev_private;
5152 struct intel_encoder *encoder;
5153 struct intel_encoder *edp_encoder = NULL;
5154 int num_connectors = 0;
5155 bool is_lvds = false;
5157 for_each_encoder_on_crtc(dev, crtc, encoder) {
5158 switch (encoder->type) {
5159 case INTEL_OUTPUT_LVDS:
5162 case INTEL_OUTPUT_EDP:
5163 edp_encoder = encoder;
5169 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
5170 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
5171 dev_priv->lvds_ssc_freq);
5172 return dev_priv->lvds_ssc_freq * 1000;
5178 static void ironlake_set_pipeconf(struct drm_crtc *crtc)
5180 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5181 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5182 int pipe = intel_crtc->pipe;
5185 val = I915_READ(PIPECONF(pipe));
5187 val &= ~PIPECONF_BPC_MASK;
5188 switch (intel_crtc->config.pipe_bpp) {
5190 val |= PIPECONF_6BPC;
5193 val |= PIPECONF_8BPC;
5196 val |= PIPECONF_10BPC;
5199 val |= PIPECONF_12BPC;
5202 /* Case prevented by intel_choose_pipe_bpp_dither. */
5206 val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
5207 if (intel_crtc->config.dither)
5208 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5210 val &= ~PIPECONF_INTERLACE_MASK;
5211 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
5212 val |= PIPECONF_INTERLACED_ILK;
5214 val |= PIPECONF_PROGRESSIVE;
5216 if (intel_crtc->config.limited_color_range)
5217 val |= PIPECONF_COLOR_RANGE_SELECT;
5219 val &= ~PIPECONF_COLOR_RANGE_SELECT;
5221 I915_WRITE(PIPECONF(pipe), val);
5222 POSTING_READ(PIPECONF(pipe));
5226 * Set up the pipe CSC unit.
5228 * Currently only full range RGB to limited range RGB conversion
5229 * is supported, but eventually this should handle various
5230 * RGB<->YCbCr scenarios as well.
5232 static void intel_set_pipe_csc(struct drm_crtc *crtc)
5234 struct drm_device *dev = crtc->dev;
5235 struct drm_i915_private *dev_priv = dev->dev_private;
5236 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5237 int pipe = intel_crtc->pipe;
5238 uint16_t coeff = 0x7800; /* 1.0 */
5241 * TODO: Check what kind of values actually come out of the pipe
5242 * with these coeff/postoff values and adjust to get the best
5243 * accuracy. Perhaps we even need to take the bpc value into
5247 if (intel_crtc->config.limited_color_range)
5248 coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5251 * GY/GU and RY/RU should be the other way around according
5252 * to BSpec, but reality doesn't agree. Just set them up in
5253 * a way that results in the correct picture.
5255 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
5256 I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
5258 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
5259 I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
5261 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
5262 I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
5264 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
5265 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
5266 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
5268 if (INTEL_INFO(dev)->gen > 6) {
5269 uint16_t postoff = 0;
5271 if (intel_crtc->config.limited_color_range)
5272 postoff = (16 * (1 << 13) / 255) & 0x1fff;
5274 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
5275 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
5276 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
5278 I915_WRITE(PIPE_CSC_MODE(pipe), 0);
5280 uint32_t mode = CSC_MODE_YUV_TO_RGB;
5282 if (intel_crtc->config.limited_color_range)
5283 mode |= CSC_BLACK_SCREEN_OFFSET;
5285 I915_WRITE(PIPE_CSC_MODE(pipe), mode);
5289 static void haswell_set_pipeconf(struct drm_crtc *crtc)
5291 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5292 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5293 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
5296 val = I915_READ(PIPECONF(cpu_transcoder));
5298 val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
5299 if (intel_crtc->config.dither)
5300 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5302 val &= ~PIPECONF_INTERLACE_MASK_HSW;
5303 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
5304 val |= PIPECONF_INTERLACED_ILK;
5306 val |= PIPECONF_PROGRESSIVE;
5308 I915_WRITE(PIPECONF(cpu_transcoder), val);
5309 POSTING_READ(PIPECONF(cpu_transcoder));
5312 static bool ironlake_compute_clocks(struct drm_crtc *crtc,
5313 struct drm_display_mode *adjusted_mode,
5314 intel_clock_t *clock,
5315 bool *has_reduced_clock,
5316 intel_clock_t *reduced_clock)
5318 struct drm_device *dev = crtc->dev;
5319 struct drm_i915_private *dev_priv = dev->dev_private;
5320 struct intel_encoder *intel_encoder;
5322 const intel_limit_t *limit;
5323 bool ret, is_sdvo = false, is_tv = false, is_lvds = false;
5325 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5326 switch (intel_encoder->type) {
5327 case INTEL_OUTPUT_LVDS:
5330 case INTEL_OUTPUT_SDVO:
5331 case INTEL_OUTPUT_HDMI:
5333 if (intel_encoder->needs_tv_clock)
5336 case INTEL_OUTPUT_TVOUT:
5342 refclk = ironlake_get_refclk(crtc);
5345 * Returns a set of divisors for the desired target clock with the given
5346 * refclk, or FALSE. The returned values represent the clock equation:
5347 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
5349 limit = intel_limit(crtc, refclk);
5350 ret = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL,
5355 if (is_lvds && dev_priv->lvds_downclock_avail) {
5357 * Ensure we match the reduced clock's P to the target clock.
5358 * If the clocks don't match, we can't switch the display clock
5359 * by using the FP0/FP1. In such case we will disable the LVDS
5360 * downclock feature.
5362 *has_reduced_clock = limit->find_pll(limit, crtc,
5363 dev_priv->lvds_downclock,
5369 if (is_sdvo && is_tv)
5370 i9xx_adjust_sdvo_tv_clock(to_intel_crtc(crtc));
5375 static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
5377 struct drm_i915_private *dev_priv = dev->dev_private;
5380 temp = I915_READ(SOUTH_CHICKEN1);
5381 if (temp & FDI_BC_BIFURCATION_SELECT)
5384 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
5385 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
5387 temp |= FDI_BC_BIFURCATION_SELECT;
5388 DRM_DEBUG_KMS("enabling fdi C rx\n");
5389 I915_WRITE(SOUTH_CHICKEN1, temp);
5390 POSTING_READ(SOUTH_CHICKEN1);
5393 static bool ironlake_check_fdi_lanes(struct intel_crtc *intel_crtc)
5395 struct drm_device *dev = intel_crtc->base.dev;
5396 struct drm_i915_private *dev_priv = dev->dev_private;
5397 struct intel_crtc *pipe_B_crtc =
5398 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
5400 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
5401 pipe_name(intel_crtc->pipe), intel_crtc->config.fdi_lanes);
5402 if (intel_crtc->config.fdi_lanes > 4) {
5403 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
5404 pipe_name(intel_crtc->pipe), intel_crtc->config.fdi_lanes);
5405 /* Clamp lanes to avoid programming the hw with bogus values. */
5406 intel_crtc->config.fdi_lanes = 4;
5411 if (INTEL_INFO(dev)->num_pipes == 2)
5414 switch (intel_crtc->pipe) {
5418 if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled &&
5419 intel_crtc->config.fdi_lanes > 2) {
5420 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5421 pipe_name(intel_crtc->pipe), intel_crtc->config.fdi_lanes);
5422 /* Clamp lanes to avoid programming the hw with bogus values. */
5423 intel_crtc->config.fdi_lanes = 2;
5428 if (intel_crtc->config.fdi_lanes > 2)
5429 WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
5431 cpt_enable_fdi_bc_bifurcation(dev);
5435 if (!pipe_B_crtc->base.enabled || pipe_B_crtc->config.fdi_lanes <= 2) {
5436 if (intel_crtc->config.fdi_lanes > 2) {
5437 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5438 pipe_name(intel_crtc->pipe), intel_crtc->config.fdi_lanes);
5439 /* Clamp lanes to avoid programming the hw with bogus values. */
5440 intel_crtc->config.fdi_lanes = 2;
5445 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
5449 cpt_enable_fdi_bc_bifurcation(dev);
5457 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
5460 * Account for spread spectrum to avoid
5461 * oversubscribing the link. Max center spread
5462 * is 2.5%; use 5% for safety's sake.
5464 u32 bps = target_clock * bpp * 21 / 20;
5465 return bps / (link_bw * 8) + 1;
5468 void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
5469 struct intel_link_m_n *m_n)
5471 struct drm_device *dev = crtc->base.dev;
5472 struct drm_i915_private *dev_priv = dev->dev_private;
5473 int pipe = crtc->pipe;
5475 I915_WRITE(TRANSDATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
5476 I915_WRITE(TRANSDATA_N1(pipe), m_n->gmch_n);
5477 I915_WRITE(TRANSDPLINK_M1(pipe), m_n->link_m);
5478 I915_WRITE(TRANSDPLINK_N1(pipe), m_n->link_n);
5481 void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
5482 struct intel_link_m_n *m_n)
5484 struct drm_device *dev = crtc->base.dev;
5485 struct drm_i915_private *dev_priv = dev->dev_private;
5486 int pipe = crtc->pipe;
5487 enum transcoder transcoder = crtc->config.cpu_transcoder;
5489 if (INTEL_INFO(dev)->gen >= 5) {
5490 I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
5491 I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
5492 I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
5493 I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
5495 I915_WRITE(PIPE_GMCH_DATA_M(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
5496 I915_WRITE(PIPE_GMCH_DATA_N(pipe), m_n->gmch_n);
5497 I915_WRITE(PIPE_DP_LINK_M(pipe), m_n->link_m);
5498 I915_WRITE(PIPE_DP_LINK_N(pipe), m_n->link_n);
5502 static void ironlake_fdi_compute_config(struct intel_crtc *intel_crtc)
5504 struct drm_device *dev = intel_crtc->base.dev;
5505 struct drm_display_mode *adjusted_mode =
5506 &intel_crtc->config.adjusted_mode;
5507 int target_clock, lane, link_bw;
5509 /* FDI is a binary signal running at ~2.7GHz, encoding
5510 * each output octet as 10 bits. The actual frequency
5511 * is stored as a divider into a 100MHz clock, and the
5512 * mode pixel clock is stored in units of 1KHz.
5513 * Hence the bw of each lane in terms of the mode signal
5516 link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
5518 if (intel_crtc->config.pixel_target_clock)
5519 target_clock = intel_crtc->config.pixel_target_clock;
5521 target_clock = adjusted_mode->clock;
5523 lane = ironlake_get_lanes_required(target_clock, link_bw,
5524 intel_crtc->config.pipe_bpp);
5526 intel_crtc->config.fdi_lanes = lane;
5528 if (intel_crtc->config.pixel_multiplier > 1)
5529 link_bw *= intel_crtc->config.pixel_multiplier;
5530 intel_link_compute_m_n(intel_crtc->config.pipe_bpp, lane, target_clock,
5531 link_bw, &intel_crtc->config.fdi_m_n);
5534 static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
5536 return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
5539 static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
5541 intel_clock_t *reduced_clock, u32 *fp2)
5543 struct drm_crtc *crtc = &intel_crtc->base;
5544 struct drm_device *dev = crtc->dev;
5545 struct drm_i915_private *dev_priv = dev->dev_private;
5546 struct intel_encoder *intel_encoder;
5548 int factor, num_connectors = 0;
5549 bool is_lvds = false, is_sdvo = false, is_tv = false;
5551 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5552 switch (intel_encoder->type) {
5553 case INTEL_OUTPUT_LVDS:
5556 case INTEL_OUTPUT_SDVO:
5557 case INTEL_OUTPUT_HDMI:
5559 if (intel_encoder->needs_tv_clock)
5562 case INTEL_OUTPUT_TVOUT:
5570 /* Enable autotuning of the PLL clock (if permissible) */
5573 if ((intel_panel_use_ssc(dev_priv) &&
5574 dev_priv->lvds_ssc_freq == 100) ||
5575 (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
5577 } else if (is_sdvo && is_tv)
5580 if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor))
5583 if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
5589 dpll |= DPLLB_MODE_LVDS;
5591 dpll |= DPLLB_MODE_DAC_SERIAL;
5593 if (intel_crtc->config.pixel_multiplier > 1) {
5594 dpll |= (intel_crtc->config.pixel_multiplier - 1)
5595 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
5599 dpll |= DPLL_DVO_HIGH_SPEED;
5600 if (intel_crtc->config.has_dp_encoder)
5601 dpll |= DPLL_DVO_HIGH_SPEED;
5603 /* compute bitmask from p1 value */
5604 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
5606 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
5608 switch (intel_crtc->config.dpll.p2) {
5610 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
5613 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
5616 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
5619 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
5623 if (is_sdvo && is_tv)
5624 dpll |= PLL_REF_INPUT_TVCLKINBC;
5626 /* XXX: just matching BIOS for now */
5627 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
5629 else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
5630 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
5632 dpll |= PLL_REF_INPUT_DREFCLK;
5637 static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
5639 struct drm_framebuffer *fb)
5641 struct drm_device *dev = crtc->dev;
5642 struct drm_i915_private *dev_priv = dev->dev_private;
5643 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5644 struct drm_display_mode *adjusted_mode =
5645 &intel_crtc->config.adjusted_mode;
5646 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
5647 int pipe = intel_crtc->pipe;
5648 int plane = intel_crtc->plane;
5649 int num_connectors = 0;
5650 intel_clock_t clock, reduced_clock;
5651 u32 dpll = 0, fp = 0, fp2 = 0;
5652 bool ok, has_reduced_clock = false;
5653 bool is_lvds = false;
5654 struct intel_encoder *encoder;
5658 for_each_encoder_on_crtc(dev, crtc, encoder) {
5659 switch (encoder->type) {
5660 case INTEL_OUTPUT_LVDS:
5668 WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
5669 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
5671 intel_crtc->config.cpu_transcoder = pipe;
5673 ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock,
5674 &has_reduced_clock, &reduced_clock);
5676 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5679 /* Compat-code for transition, will disappear. */
5680 if (!intel_crtc->config.clock_set) {
5681 intel_crtc->config.dpll.n = clock.n;
5682 intel_crtc->config.dpll.m1 = clock.m1;
5683 intel_crtc->config.dpll.m2 = clock.m2;
5684 intel_crtc->config.dpll.p1 = clock.p1;
5685 intel_crtc->config.dpll.p2 = clock.p2;
5688 /* Ensure that the cursor is valid for the new mode before changing... */
5689 intel_crtc_update_cursor(crtc, true);
5691 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe_name(pipe));
5692 drm_mode_debug_printmodeline(mode);
5694 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
5695 if (intel_crtc->config.has_pch_encoder) {
5696 struct intel_pch_pll *pll;
5698 fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
5699 if (has_reduced_clock)
5700 fp2 = i9xx_dpll_compute_fp(&reduced_clock);
5702 dpll = ironlake_compute_dpll(intel_crtc,
5703 &fp, &reduced_clock,
5704 has_reduced_clock ? &fp2 : NULL);
5706 pll = intel_get_pch_pll(intel_crtc, dpll, fp);
5708 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
5713 intel_put_pch_pll(intel_crtc);
5715 if (intel_crtc->config.has_dp_encoder)
5716 intel_dp_set_m_n(intel_crtc);
5718 for_each_encoder_on_crtc(dev, crtc, encoder)
5719 if (encoder->pre_pll_enable)
5720 encoder->pre_pll_enable(encoder);
5722 if (intel_crtc->pch_pll) {
5723 I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll);
5725 /* Wait for the clocks to stabilize. */
5726 POSTING_READ(intel_crtc->pch_pll->pll_reg);
5729 /* The pixel multiplier can only be updated once the
5730 * DPLL is enabled and the clocks are stable.
5732 * So write it again.
5734 I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll);
5737 intel_crtc->lowfreq_avail = false;
5738 if (intel_crtc->pch_pll) {
5739 if (is_lvds && has_reduced_clock && i915_powersave) {
5740 I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2);
5741 intel_crtc->lowfreq_avail = true;
5743 I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp);
5747 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
5749 /* Note, this also computes intel_crtc->fdi_lanes which is used below in
5750 * ironlake_check_fdi_lanes. */
5751 intel_crtc->config.fdi_lanes = 0;
5752 if (intel_crtc->config.has_pch_encoder) {
5753 ironlake_fdi_compute_config(intel_crtc);
5755 intel_cpu_transcoder_set_m_n(intel_crtc,
5756 &intel_crtc->config.fdi_m_n);
5759 fdi_config_ok = ironlake_check_fdi_lanes(intel_crtc);
5761 ironlake_set_pipeconf(crtc);
5763 /* Set up the display plane register */
5764 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
5765 POSTING_READ(DSPCNTR(plane));
5767 ret = intel_pipe_set_base(crtc, x, y, fb);
5769 intel_update_watermarks(dev);
5771 intel_update_linetime_watermarks(dev, pipe, adjusted_mode);
5773 return fdi_config_ok ? ret : -EINVAL;
5776 static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
5777 struct intel_crtc_config *pipe_config)
5779 struct drm_device *dev = crtc->base.dev;
5780 struct drm_i915_private *dev_priv = dev->dev_private;
5783 tmp = I915_READ(PIPECONF(crtc->pipe));
5784 if (!(tmp & PIPECONF_ENABLE))
5787 if (I915_READ(TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
5788 pipe_config->has_pch_encoder = true;
5790 tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
5791 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
5792 FDI_DP_PORT_WIDTH_SHIFT) + 1;
5798 static void haswell_modeset_global_resources(struct drm_device *dev)
5800 struct drm_i915_private *dev_priv = dev->dev_private;
5801 bool enable = false;
5802 struct intel_crtc *crtc;
5803 struct intel_encoder *encoder;
5805 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
5806 if (crtc->pipe != PIPE_A && crtc->base.enabled)
5808 /* XXX: Should check for edp transcoder here, but thanks to init
5809 * sequence that's not yet available. Just in case desktop eDP
5810 * on PORT D is possible on haswell, too. */
5811 /* Even the eDP panel fitter is outside the always-on well. */
5812 if (I915_READ(PF_WIN_SZ(crtc->pipe)))
5816 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
5818 if (encoder->type != INTEL_OUTPUT_EDP &&
5819 encoder->connectors_active)
5823 intel_set_power_well(dev, enable);
5826 static int haswell_crtc_mode_set(struct drm_crtc *crtc,
5828 struct drm_framebuffer *fb)
5830 struct drm_device *dev = crtc->dev;
5831 struct drm_i915_private *dev_priv = dev->dev_private;
5832 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5833 struct drm_display_mode *adjusted_mode =
5834 &intel_crtc->config.adjusted_mode;
5835 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
5836 int pipe = intel_crtc->pipe;
5837 int plane = intel_crtc->plane;
5838 int num_connectors = 0;
5839 bool is_cpu_edp = false;
5840 struct intel_encoder *encoder;
5843 for_each_encoder_on_crtc(dev, crtc, encoder) {
5844 switch (encoder->type) {
5845 case INTEL_OUTPUT_EDP:
5846 if (!intel_encoder_is_pch_edp(&encoder->base))
5855 intel_crtc->config.cpu_transcoder = TRANSCODER_EDP;
5857 intel_crtc->config.cpu_transcoder = pipe;
5859 /* We are not sure yet this won't happen. */
5860 WARN(!HAS_PCH_LPT(dev), "Unexpected PCH type %d\n",
5861 INTEL_PCH_TYPE(dev));
5863 WARN(num_connectors != 1, "%d connectors attached to pipe %c\n",
5864 num_connectors, pipe_name(pipe));
5866 WARN_ON(I915_READ(PIPECONF(intel_crtc->config.cpu_transcoder)) &
5867 (PIPECONF_ENABLE | I965_PIPECONF_ACTIVE));
5869 WARN_ON(I915_READ(DSPCNTR(plane)) & DISPLAY_PLANE_ENABLE);
5871 if (!intel_ddi_pll_mode_set(crtc, adjusted_mode->clock))
5874 /* Ensure that the cursor is valid for the new mode before changing... */
5875 intel_crtc_update_cursor(crtc, true);
5877 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe_name(pipe));
5878 drm_mode_debug_printmodeline(mode);
5880 if (intel_crtc->config.has_dp_encoder)
5881 intel_dp_set_m_n(intel_crtc);
5883 intel_crtc->lowfreq_avail = false;
5885 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
5887 if (intel_crtc->config.has_pch_encoder) {
5888 ironlake_fdi_compute_config(intel_crtc);
5890 intel_cpu_transcoder_set_m_n(intel_crtc,
5891 &intel_crtc->config.fdi_m_n);
5894 haswell_set_pipeconf(crtc);
5896 intel_set_pipe_csc(crtc);
5898 /* Set up the display plane register */
5899 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
5900 POSTING_READ(DSPCNTR(plane));
5902 ret = intel_pipe_set_base(crtc, x, y, fb);
5904 intel_update_watermarks(dev);
5906 intel_update_linetime_watermarks(dev, pipe, adjusted_mode);
5911 static bool haswell_get_pipe_config(struct intel_crtc *crtc,
5912 struct intel_crtc_config *pipe_config)
5914 struct drm_device *dev = crtc->base.dev;
5915 struct drm_i915_private *dev_priv = dev->dev_private;
5916 enum transcoder cpu_transcoder = crtc->config.cpu_transcoder;
5919 if (!intel_using_power_well(dev_priv->dev) &&
5920 cpu_transcoder != TRANSCODER_EDP)
5923 tmp = I915_READ(PIPECONF(cpu_transcoder));
5924 if (!(tmp & PIPECONF_ENABLE))
5928 * Haswell has only FDI/PCH transcoder A. It is which is connected to
5929 * DDI E. So just check whether this pipe is wired to DDI E and whether
5930 * the PCH transcoder is on.
5932 tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
5933 if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
5934 I915_READ(TRANSCONF(PIPE_A)) & TRANS_ENABLE) {
5935 pipe_config->has_pch_encoder = true;
5937 tmp = I915_READ(FDI_RX_CTL(PIPE_A));
5938 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
5939 FDI_DP_PORT_WIDTH_SHIFT) + 1;
5945 static int intel_crtc_mode_set(struct drm_crtc *crtc,
5947 struct drm_framebuffer *fb)
5949 struct drm_device *dev = crtc->dev;
5950 struct drm_i915_private *dev_priv = dev->dev_private;
5951 struct drm_encoder_helper_funcs *encoder_funcs;
5952 struct intel_encoder *encoder;
5953 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5954 struct drm_display_mode *adjusted_mode =
5955 &intel_crtc->config.adjusted_mode;
5956 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
5957 int pipe = intel_crtc->pipe;
5960 drm_vblank_pre_modeset(dev, pipe);
5962 ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
5964 drm_vblank_post_modeset(dev, pipe);
5969 for_each_encoder_on_crtc(dev, crtc, encoder) {
5970 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
5971 encoder->base.base.id,
5972 drm_get_encoder_name(&encoder->base),
5973 mode->base.id, mode->name);
5974 if (encoder->mode_set) {
5975 encoder->mode_set(encoder);
5977 encoder_funcs = encoder->base.helper_private;
5978 encoder_funcs->mode_set(&encoder->base, mode, adjusted_mode);
5985 static bool intel_eld_uptodate(struct drm_connector *connector,
5986 int reg_eldv, uint32_t bits_eldv,
5987 int reg_elda, uint32_t bits_elda,
5990 struct drm_i915_private *dev_priv = connector->dev->dev_private;
5991 uint8_t *eld = connector->eld;
5994 i = I915_READ(reg_eldv);
6003 i = I915_READ(reg_elda);
6005 I915_WRITE(reg_elda, i);
6007 for (i = 0; i < eld[2]; i++)
6008 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
6014 static void g4x_write_eld(struct drm_connector *connector,
6015 struct drm_crtc *crtc)
6017 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6018 uint8_t *eld = connector->eld;
6023 i = I915_READ(G4X_AUD_VID_DID);
6025 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
6026 eldv = G4X_ELDV_DEVCL_DEVBLC;
6028 eldv = G4X_ELDV_DEVCTG;
6030 if (intel_eld_uptodate(connector,
6031 G4X_AUD_CNTL_ST, eldv,
6032 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
6033 G4X_HDMIW_HDMIEDID))
6036 i = I915_READ(G4X_AUD_CNTL_ST);
6037 i &= ~(eldv | G4X_ELD_ADDR);
6038 len = (i >> 9) & 0x1f; /* ELD buffer size */
6039 I915_WRITE(G4X_AUD_CNTL_ST, i);
6044 len = min_t(uint8_t, eld[2], len);
6045 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6046 for (i = 0; i < len; i++)
6047 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
6049 i = I915_READ(G4X_AUD_CNTL_ST);
6051 I915_WRITE(G4X_AUD_CNTL_ST, i);
6054 static void haswell_write_eld(struct drm_connector *connector,
6055 struct drm_crtc *crtc)
6057 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6058 uint8_t *eld = connector->eld;
6059 struct drm_device *dev = crtc->dev;
6060 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6064 int pipe = to_intel_crtc(crtc)->pipe;
6067 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
6068 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
6069 int aud_config = HSW_AUD_CFG(pipe);
6070 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
6073 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
6075 /* Audio output enable */
6076 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
6077 tmp = I915_READ(aud_cntrl_st2);
6078 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
6079 I915_WRITE(aud_cntrl_st2, tmp);
6081 /* Wait for 1 vertical blank */
6082 intel_wait_for_vblank(dev, pipe);
6084 /* Set ELD valid state */
6085 tmp = I915_READ(aud_cntrl_st2);
6086 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp);
6087 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
6088 I915_WRITE(aud_cntrl_st2, tmp);
6089 tmp = I915_READ(aud_cntrl_st2);
6090 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp);
6092 /* Enable HDMI mode */
6093 tmp = I915_READ(aud_config);
6094 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp);
6095 /* clear N_programing_enable and N_value_index */
6096 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
6097 I915_WRITE(aud_config, tmp);
6099 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6101 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
6102 intel_crtc->eld_vld = true;
6104 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6105 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6106 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6107 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6109 I915_WRITE(aud_config, 0);
6111 if (intel_eld_uptodate(connector,
6112 aud_cntrl_st2, eldv,
6113 aud_cntl_st, IBX_ELD_ADDRESS,
6117 i = I915_READ(aud_cntrl_st2);
6119 I915_WRITE(aud_cntrl_st2, i);
6124 i = I915_READ(aud_cntl_st);
6125 i &= ~IBX_ELD_ADDRESS;
6126 I915_WRITE(aud_cntl_st, i);
6127 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6128 DRM_DEBUG_DRIVER("port num:%d\n", i);
6130 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6131 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6132 for (i = 0; i < len; i++)
6133 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6135 i = I915_READ(aud_cntrl_st2);
6137 I915_WRITE(aud_cntrl_st2, i);
6141 static void ironlake_write_eld(struct drm_connector *connector,
6142 struct drm_crtc *crtc)
6144 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6145 uint8_t *eld = connector->eld;
6153 int pipe = to_intel_crtc(crtc)->pipe;
6155 if (HAS_PCH_IBX(connector->dev)) {
6156 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
6157 aud_config = IBX_AUD_CFG(pipe);
6158 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
6159 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
6161 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
6162 aud_config = CPT_AUD_CFG(pipe);
6163 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
6164 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
6167 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6169 i = I915_READ(aud_cntl_st);
6170 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6172 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
6173 /* operate blindly on all ports */
6174 eldv = IBX_ELD_VALIDB;
6175 eldv |= IBX_ELD_VALIDB << 4;
6176 eldv |= IBX_ELD_VALIDB << 8;
6178 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i));
6179 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
6182 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6183 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6184 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6185 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6187 I915_WRITE(aud_config, 0);
6189 if (intel_eld_uptodate(connector,
6190 aud_cntrl_st2, eldv,
6191 aud_cntl_st, IBX_ELD_ADDRESS,
6195 i = I915_READ(aud_cntrl_st2);
6197 I915_WRITE(aud_cntrl_st2, i);
6202 i = I915_READ(aud_cntl_st);
6203 i &= ~IBX_ELD_ADDRESS;
6204 I915_WRITE(aud_cntl_st, i);
6206 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6207 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6208 for (i = 0; i < len; i++)
6209 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6211 i = I915_READ(aud_cntrl_st2);
6213 I915_WRITE(aud_cntrl_st2, i);
6216 void intel_write_eld(struct drm_encoder *encoder,
6217 struct drm_display_mode *mode)
6219 struct drm_crtc *crtc = encoder->crtc;
6220 struct drm_connector *connector;
6221 struct drm_device *dev = encoder->dev;
6222 struct drm_i915_private *dev_priv = dev->dev_private;
6224 connector = drm_select_eld(encoder, mode);
6228 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6230 drm_get_connector_name(connector),
6231 connector->encoder->base.id,
6232 drm_get_encoder_name(connector->encoder));
6234 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
6236 if (dev_priv->display.write_eld)
6237 dev_priv->display.write_eld(connector, crtc);
6240 /** Loads the palette/gamma unit for the CRTC with the prepared values */
6241 void intel_crtc_load_lut(struct drm_crtc *crtc)
6243 struct drm_device *dev = crtc->dev;
6244 struct drm_i915_private *dev_priv = dev->dev_private;
6245 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6246 int palreg = PALETTE(intel_crtc->pipe);
6249 /* The clocks have to be on to load the palette. */
6250 if (!crtc->enabled || !intel_crtc->active)
6253 /* use legacy palette for Ironlake */
6254 if (HAS_PCH_SPLIT(dev))
6255 palreg = LGC_PALETTE(intel_crtc->pipe);
6257 for (i = 0; i < 256; i++) {
6258 I915_WRITE(palreg + 4 * i,
6259 (intel_crtc->lut_r[i] << 16) |
6260 (intel_crtc->lut_g[i] << 8) |
6261 intel_crtc->lut_b[i]);
6265 static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
6267 struct drm_device *dev = crtc->dev;
6268 struct drm_i915_private *dev_priv = dev->dev_private;
6269 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6270 bool visible = base != 0;
6273 if (intel_crtc->cursor_visible == visible)
6276 cntl = I915_READ(_CURACNTR);
6278 /* On these chipsets we can only modify the base whilst
6279 * the cursor is disabled.
6281 I915_WRITE(_CURABASE, base);
6283 cntl &= ~(CURSOR_FORMAT_MASK);
6284 /* XXX width must be 64, stride 256 => 0x00 << 28 */
6285 cntl |= CURSOR_ENABLE |
6286 CURSOR_GAMMA_ENABLE |
6289 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
6290 I915_WRITE(_CURACNTR, cntl);
6292 intel_crtc->cursor_visible = visible;
6295 static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
6297 struct drm_device *dev = crtc->dev;
6298 struct drm_i915_private *dev_priv = dev->dev_private;
6299 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6300 int pipe = intel_crtc->pipe;
6301 bool visible = base != 0;
6303 if (intel_crtc->cursor_visible != visible) {
6304 uint32_t cntl = I915_READ(CURCNTR(pipe));
6306 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
6307 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6308 cntl |= pipe << 28; /* Connect to correct pipe */
6310 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6311 cntl |= CURSOR_MODE_DISABLE;
6313 I915_WRITE(CURCNTR(pipe), cntl);
6315 intel_crtc->cursor_visible = visible;
6317 /* and commit changes on next vblank */
6318 I915_WRITE(CURBASE(pipe), base);
6321 static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
6323 struct drm_device *dev = crtc->dev;
6324 struct drm_i915_private *dev_priv = dev->dev_private;
6325 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6326 int pipe = intel_crtc->pipe;
6327 bool visible = base != 0;
6329 if (intel_crtc->cursor_visible != visible) {
6330 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
6332 cntl &= ~CURSOR_MODE;
6333 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6335 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6336 cntl |= CURSOR_MODE_DISABLE;
6338 if (IS_HASWELL(dev))
6339 cntl |= CURSOR_PIPE_CSC_ENABLE;
6340 I915_WRITE(CURCNTR_IVB(pipe), cntl);
6342 intel_crtc->cursor_visible = visible;
6344 /* and commit changes on next vblank */
6345 I915_WRITE(CURBASE_IVB(pipe), base);
6348 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
6349 static void intel_crtc_update_cursor(struct drm_crtc *crtc,
6352 struct drm_device *dev = crtc->dev;
6353 struct drm_i915_private *dev_priv = dev->dev_private;
6354 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6355 int pipe = intel_crtc->pipe;
6356 int x = intel_crtc->cursor_x;
6357 int y = intel_crtc->cursor_y;
6363 if (on && crtc->enabled && crtc->fb) {
6364 base = intel_crtc->cursor_addr;
6365 if (x > (int) crtc->fb->width)
6368 if (y > (int) crtc->fb->height)
6374 if (x + intel_crtc->cursor_width < 0)
6377 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
6380 pos |= x << CURSOR_X_SHIFT;
6383 if (y + intel_crtc->cursor_height < 0)
6386 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
6389 pos |= y << CURSOR_Y_SHIFT;
6391 visible = base != 0;
6392 if (!visible && !intel_crtc->cursor_visible)
6395 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
6396 I915_WRITE(CURPOS_IVB(pipe), pos);
6397 ivb_update_cursor(crtc, base);
6399 I915_WRITE(CURPOS(pipe), pos);
6400 if (IS_845G(dev) || IS_I865G(dev))
6401 i845_update_cursor(crtc, base);
6403 i9xx_update_cursor(crtc, base);
6407 static int intel_crtc_cursor_set(struct drm_crtc *crtc,
6408 struct drm_file *file,
6410 uint32_t width, uint32_t height)
6412 struct drm_device *dev = crtc->dev;
6413 struct drm_i915_private *dev_priv = dev->dev_private;
6414 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6415 struct drm_i915_gem_object *obj;
6419 /* if we want to turn off the cursor ignore width and height */
6421 DRM_DEBUG_KMS("cursor off\n");
6424 mutex_lock(&dev->struct_mutex);
6428 /* Currently we only support 64x64 cursors */
6429 if (width != 64 || height != 64) {
6430 DRM_ERROR("we currently only support 64x64 cursors\n");
6434 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
6435 if (&obj->base == NULL)
6438 if (obj->base.size < width * height * 4) {
6439 DRM_ERROR("buffer is to small\n");
6444 /* we only need to pin inside GTT if cursor is non-phy */
6445 mutex_lock(&dev->struct_mutex);
6446 if (!dev_priv->info->cursor_needs_physical) {
6449 if (obj->tiling_mode) {
6450 DRM_ERROR("cursor cannot be tiled\n");
6455 /* Note that the w/a also requires 2 PTE of padding following
6456 * the bo. We currently fill all unused PTE with the shadow
6457 * page and so we should always have valid PTE following the
6458 * cursor preventing the VT-d warning.
6461 if (need_vtd_wa(dev))
6462 alignment = 64*1024;
6464 ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
6466 DRM_ERROR("failed to move cursor bo into the GTT\n");
6470 ret = i915_gem_object_put_fence(obj);
6472 DRM_ERROR("failed to release fence for cursor");
6476 addr = obj->gtt_offset;
6478 int align = IS_I830(dev) ? 16 * 1024 : 256;
6479 ret = i915_gem_attach_phys_object(dev, obj,
6480 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
6483 DRM_ERROR("failed to attach phys object\n");
6486 addr = obj->phys_obj->handle->busaddr;
6490 I915_WRITE(CURSIZE, (height << 12) | width);
6493 if (intel_crtc->cursor_bo) {
6494 if (dev_priv->info->cursor_needs_physical) {
6495 if (intel_crtc->cursor_bo != obj)
6496 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
6498 i915_gem_object_unpin(intel_crtc->cursor_bo);
6499 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
6502 mutex_unlock(&dev->struct_mutex);
6504 intel_crtc->cursor_addr = addr;
6505 intel_crtc->cursor_bo = obj;
6506 intel_crtc->cursor_width = width;
6507 intel_crtc->cursor_height = height;
6509 intel_crtc_update_cursor(crtc, true);
6513 i915_gem_object_unpin(obj);
6515 mutex_unlock(&dev->struct_mutex);
6517 drm_gem_object_unreference_unlocked(&obj->base);
6521 static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
6523 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6525 intel_crtc->cursor_x = x;
6526 intel_crtc->cursor_y = y;
6528 intel_crtc_update_cursor(crtc, true);
6533 /** Sets the color ramps on behalf of RandR */
6534 void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
6535 u16 blue, int regno)
6537 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6539 intel_crtc->lut_r[regno] = red >> 8;
6540 intel_crtc->lut_g[regno] = green >> 8;
6541 intel_crtc->lut_b[regno] = blue >> 8;
6544 void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
6545 u16 *blue, int regno)
6547 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6549 *red = intel_crtc->lut_r[regno] << 8;
6550 *green = intel_crtc->lut_g[regno] << 8;
6551 *blue = intel_crtc->lut_b[regno] << 8;
6554 static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
6555 u16 *blue, uint32_t start, uint32_t size)
6557 int end = (start + size > 256) ? 256 : start + size, i;
6558 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6560 for (i = start; i < end; i++) {
6561 intel_crtc->lut_r[i] = red[i] >> 8;
6562 intel_crtc->lut_g[i] = green[i] >> 8;
6563 intel_crtc->lut_b[i] = blue[i] >> 8;
6566 intel_crtc_load_lut(crtc);
6569 /* VESA 640x480x72Hz mode to set on the pipe */
6570 static struct drm_display_mode load_detect_mode = {
6571 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
6572 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
6575 static struct drm_framebuffer *
6576 intel_framebuffer_create(struct drm_device *dev,
6577 struct drm_mode_fb_cmd2 *mode_cmd,
6578 struct drm_i915_gem_object *obj)
6580 struct intel_framebuffer *intel_fb;
6583 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
6585 drm_gem_object_unreference_unlocked(&obj->base);
6586 return ERR_PTR(-ENOMEM);
6589 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
6591 drm_gem_object_unreference_unlocked(&obj->base);
6593 return ERR_PTR(ret);
6596 return &intel_fb->base;
6600 intel_framebuffer_pitch_for_width(int width, int bpp)
6602 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
6603 return ALIGN(pitch, 64);
6607 intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
6609 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
6610 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
6613 static struct drm_framebuffer *
6614 intel_framebuffer_create_for_mode(struct drm_device *dev,
6615 struct drm_display_mode *mode,
6618 struct drm_i915_gem_object *obj;
6619 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
6621 obj = i915_gem_alloc_object(dev,
6622 intel_framebuffer_size_for_mode(mode, bpp));
6624 return ERR_PTR(-ENOMEM);
6626 mode_cmd.width = mode->hdisplay;
6627 mode_cmd.height = mode->vdisplay;
6628 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
6630 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
6632 return intel_framebuffer_create(dev, &mode_cmd, obj);
6635 static struct drm_framebuffer *
6636 mode_fits_in_fbdev(struct drm_device *dev,
6637 struct drm_display_mode *mode)
6639 struct drm_i915_private *dev_priv = dev->dev_private;
6640 struct drm_i915_gem_object *obj;
6641 struct drm_framebuffer *fb;
6643 if (dev_priv->fbdev == NULL)
6646 obj = dev_priv->fbdev->ifb.obj;
6650 fb = &dev_priv->fbdev->ifb.base;
6651 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
6652 fb->bits_per_pixel))
6655 if (obj->base.size < mode->vdisplay * fb->pitches[0])
6661 bool intel_get_load_detect_pipe(struct drm_connector *connector,
6662 struct drm_display_mode *mode,
6663 struct intel_load_detect_pipe *old)
6665 struct intel_crtc *intel_crtc;
6666 struct intel_encoder *intel_encoder =
6667 intel_attached_encoder(connector);
6668 struct drm_crtc *possible_crtc;
6669 struct drm_encoder *encoder = &intel_encoder->base;
6670 struct drm_crtc *crtc = NULL;
6671 struct drm_device *dev = encoder->dev;
6672 struct drm_framebuffer *fb;
6675 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6676 connector->base.id, drm_get_connector_name(connector),
6677 encoder->base.id, drm_get_encoder_name(encoder));
6680 * Algorithm gets a little messy:
6682 * - if the connector already has an assigned crtc, use it (but make
6683 * sure it's on first)
6685 * - try to find the first unused crtc that can drive this connector,
6686 * and use that if we find one
6689 /* See if we already have a CRTC for this connector */
6690 if (encoder->crtc) {
6691 crtc = encoder->crtc;
6693 mutex_lock(&crtc->mutex);
6695 old->dpms_mode = connector->dpms;
6696 old->load_detect_temp = false;
6698 /* Make sure the crtc and connector are running */
6699 if (connector->dpms != DRM_MODE_DPMS_ON)
6700 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
6705 /* Find an unused one (if possible) */
6706 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
6708 if (!(encoder->possible_crtcs & (1 << i)))
6710 if (!possible_crtc->enabled) {
6711 crtc = possible_crtc;
6717 * If we didn't find an unused CRTC, don't use any.
6720 DRM_DEBUG_KMS("no pipe available for load-detect\n");
6724 mutex_lock(&crtc->mutex);
6725 intel_encoder->new_crtc = to_intel_crtc(crtc);
6726 to_intel_connector(connector)->new_encoder = intel_encoder;
6728 intel_crtc = to_intel_crtc(crtc);
6729 old->dpms_mode = connector->dpms;
6730 old->load_detect_temp = true;
6731 old->release_fb = NULL;
6734 mode = &load_detect_mode;
6736 /* We need a framebuffer large enough to accommodate all accesses
6737 * that the plane may generate whilst we perform load detection.
6738 * We can not rely on the fbcon either being present (we get called
6739 * during its initialisation to detect all boot displays, or it may
6740 * not even exist) or that it is large enough to satisfy the
6743 fb = mode_fits_in_fbdev(dev, mode);
6745 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
6746 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
6747 old->release_fb = fb;
6749 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
6751 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
6752 mutex_unlock(&crtc->mutex);
6756 if (intel_set_mode(crtc, mode, 0, 0, fb)) {
6757 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
6758 if (old->release_fb)
6759 old->release_fb->funcs->destroy(old->release_fb);
6760 mutex_unlock(&crtc->mutex);
6764 /* let the connector get through one full cycle before testing */
6765 intel_wait_for_vblank(dev, intel_crtc->pipe);
6769 void intel_release_load_detect_pipe(struct drm_connector *connector,
6770 struct intel_load_detect_pipe *old)
6772 struct intel_encoder *intel_encoder =
6773 intel_attached_encoder(connector);
6774 struct drm_encoder *encoder = &intel_encoder->base;
6775 struct drm_crtc *crtc = encoder->crtc;
6777 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6778 connector->base.id, drm_get_connector_name(connector),
6779 encoder->base.id, drm_get_encoder_name(encoder));
6781 if (old->load_detect_temp) {
6782 to_intel_connector(connector)->new_encoder = NULL;
6783 intel_encoder->new_crtc = NULL;
6784 intel_set_mode(crtc, NULL, 0, 0, NULL);
6786 if (old->release_fb) {
6787 drm_framebuffer_unregister_private(old->release_fb);
6788 drm_framebuffer_unreference(old->release_fb);
6791 mutex_unlock(&crtc->mutex);
6795 /* Switch crtc and encoder back off if necessary */
6796 if (old->dpms_mode != DRM_MODE_DPMS_ON)
6797 connector->funcs->dpms(connector, old->dpms_mode);
6799 mutex_unlock(&crtc->mutex);
6802 /* Returns the clock of the currently programmed mode of the given pipe. */
6803 static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
6805 struct drm_i915_private *dev_priv = dev->dev_private;
6806 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6807 int pipe = intel_crtc->pipe;
6808 u32 dpll = I915_READ(DPLL(pipe));
6810 intel_clock_t clock;
6812 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
6813 fp = I915_READ(FP0(pipe));
6815 fp = I915_READ(FP1(pipe));
6817 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
6818 if (IS_PINEVIEW(dev)) {
6819 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
6820 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
6822 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
6823 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
6826 if (!IS_GEN2(dev)) {
6827 if (IS_PINEVIEW(dev))
6828 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
6829 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
6831 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
6832 DPLL_FPA01_P1_POST_DIV_SHIFT);
6834 switch (dpll & DPLL_MODE_MASK) {
6835 case DPLLB_MODE_DAC_SERIAL:
6836 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
6839 case DPLLB_MODE_LVDS:
6840 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
6844 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
6845 "mode\n", (int)(dpll & DPLL_MODE_MASK));
6849 /* XXX: Handle the 100Mhz refclk */
6850 intel_clock(dev, 96000, &clock);
6852 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
6855 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
6856 DPLL_FPA01_P1_POST_DIV_SHIFT);
6859 if ((dpll & PLL_REF_INPUT_MASK) ==
6860 PLLB_REF_INPUT_SPREADSPECTRUMIN) {
6861 /* XXX: might not be 66MHz */
6862 intel_clock(dev, 66000, &clock);
6864 intel_clock(dev, 48000, &clock);
6866 if (dpll & PLL_P1_DIVIDE_BY_TWO)
6869 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
6870 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
6872 if (dpll & PLL_P2_DIVIDE_BY_4)
6877 intel_clock(dev, 48000, &clock);
6881 /* XXX: It would be nice to validate the clocks, but we can't reuse
6882 * i830PllIsValid() because it relies on the xf86_config connector
6883 * configuration being accurate, which it isn't necessarily.
6889 /** Returns the currently programmed mode of the given pipe. */
6890 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
6891 struct drm_crtc *crtc)
6893 struct drm_i915_private *dev_priv = dev->dev_private;
6894 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6895 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
6896 struct drm_display_mode *mode;
6897 int htot = I915_READ(HTOTAL(cpu_transcoder));
6898 int hsync = I915_READ(HSYNC(cpu_transcoder));
6899 int vtot = I915_READ(VTOTAL(cpu_transcoder));
6900 int vsync = I915_READ(VSYNC(cpu_transcoder));
6902 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
6906 mode->clock = intel_crtc_clock_get(dev, crtc);
6907 mode->hdisplay = (htot & 0xffff) + 1;
6908 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
6909 mode->hsync_start = (hsync & 0xffff) + 1;
6910 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
6911 mode->vdisplay = (vtot & 0xffff) + 1;
6912 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
6913 mode->vsync_start = (vsync & 0xffff) + 1;
6914 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
6916 drm_mode_set_name(mode);
6921 static void intel_increase_pllclock(struct drm_crtc *crtc)
6923 struct drm_device *dev = crtc->dev;
6924 drm_i915_private_t *dev_priv = dev->dev_private;
6925 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6926 int pipe = intel_crtc->pipe;
6927 int dpll_reg = DPLL(pipe);
6930 if (HAS_PCH_SPLIT(dev))
6933 if (!dev_priv->lvds_downclock_avail)
6936 dpll = I915_READ(dpll_reg);
6937 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
6938 DRM_DEBUG_DRIVER("upclocking LVDS\n");
6940 assert_panel_unlocked(dev_priv, pipe);
6942 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
6943 I915_WRITE(dpll_reg, dpll);
6944 intel_wait_for_vblank(dev, pipe);
6946 dpll = I915_READ(dpll_reg);
6947 if (dpll & DISPLAY_RATE_SELECT_FPA1)
6948 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
6952 static void intel_decrease_pllclock(struct drm_crtc *crtc)
6954 struct drm_device *dev = crtc->dev;
6955 drm_i915_private_t *dev_priv = dev->dev_private;
6956 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6958 if (HAS_PCH_SPLIT(dev))
6961 if (!dev_priv->lvds_downclock_avail)
6965 * Since this is called by a timer, we should never get here in
6968 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
6969 int pipe = intel_crtc->pipe;
6970 int dpll_reg = DPLL(pipe);
6973 DRM_DEBUG_DRIVER("downclocking LVDS\n");
6975 assert_panel_unlocked(dev_priv, pipe);
6977 dpll = I915_READ(dpll_reg);
6978 dpll |= DISPLAY_RATE_SELECT_FPA1;
6979 I915_WRITE(dpll_reg, dpll);
6980 intel_wait_for_vblank(dev, pipe);
6981 dpll = I915_READ(dpll_reg);
6982 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
6983 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
6988 void intel_mark_busy(struct drm_device *dev)
6990 i915_update_gfx_val(dev->dev_private);
6993 void intel_mark_idle(struct drm_device *dev)
6995 struct drm_crtc *crtc;
6997 if (!i915_powersave)
7000 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7004 intel_decrease_pllclock(crtc);
7008 void intel_mark_fb_busy(struct drm_i915_gem_object *obj)
7010 struct drm_device *dev = obj->base.dev;
7011 struct drm_crtc *crtc;
7013 if (!i915_powersave)
7016 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7020 if (to_intel_framebuffer(crtc->fb)->obj == obj)
7021 intel_increase_pllclock(crtc);
7025 static void intel_crtc_destroy(struct drm_crtc *crtc)
7027 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7028 struct drm_device *dev = crtc->dev;
7029 struct intel_unpin_work *work;
7030 unsigned long flags;
7032 spin_lock_irqsave(&dev->event_lock, flags);
7033 work = intel_crtc->unpin_work;
7034 intel_crtc->unpin_work = NULL;
7035 spin_unlock_irqrestore(&dev->event_lock, flags);
7038 cancel_work_sync(&work->work);
7042 drm_crtc_cleanup(crtc);
7047 static void intel_unpin_work_fn(struct work_struct *__work)
7049 struct intel_unpin_work *work =
7050 container_of(__work, struct intel_unpin_work, work);
7051 struct drm_device *dev = work->crtc->dev;
7053 mutex_lock(&dev->struct_mutex);
7054 intel_unpin_fb_obj(work->old_fb_obj);
7055 drm_gem_object_unreference(&work->pending_flip_obj->base);
7056 drm_gem_object_unreference(&work->old_fb_obj->base);
7058 intel_update_fbc(dev);
7059 mutex_unlock(&dev->struct_mutex);
7061 BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
7062 atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
7067 static void do_intel_finish_page_flip(struct drm_device *dev,
7068 struct drm_crtc *crtc)
7070 drm_i915_private_t *dev_priv = dev->dev_private;
7071 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7072 struct intel_unpin_work *work;
7073 unsigned long flags;
7075 /* Ignore early vblank irqs */
7076 if (intel_crtc == NULL)
7079 spin_lock_irqsave(&dev->event_lock, flags);
7080 work = intel_crtc->unpin_work;
7082 /* Ensure we don't miss a work->pending update ... */
7085 if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
7086 spin_unlock_irqrestore(&dev->event_lock, flags);
7090 /* and that the unpin work is consistent wrt ->pending. */
7093 intel_crtc->unpin_work = NULL;
7096 drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
7098 drm_vblank_put(dev, intel_crtc->pipe);
7100 spin_unlock_irqrestore(&dev->event_lock, flags);
7102 wake_up_all(&dev_priv->pending_flip_queue);
7104 queue_work(dev_priv->wq, &work->work);
7106 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
7109 void intel_finish_page_flip(struct drm_device *dev, int pipe)
7111 drm_i915_private_t *dev_priv = dev->dev_private;
7112 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
7114 do_intel_finish_page_flip(dev, crtc);
7117 void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
7119 drm_i915_private_t *dev_priv = dev->dev_private;
7120 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
7122 do_intel_finish_page_flip(dev, crtc);
7125 void intel_prepare_page_flip(struct drm_device *dev, int plane)
7127 drm_i915_private_t *dev_priv = dev->dev_private;
7128 struct intel_crtc *intel_crtc =
7129 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
7130 unsigned long flags;
7132 /* NB: An MMIO update of the plane base pointer will also
7133 * generate a page-flip completion irq, i.e. every modeset
7134 * is also accompanied by a spurious intel_prepare_page_flip().
7136 spin_lock_irqsave(&dev->event_lock, flags);
7137 if (intel_crtc->unpin_work)
7138 atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
7139 spin_unlock_irqrestore(&dev->event_lock, flags);
7142 inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
7144 /* Ensure that the work item is consistent when activating it ... */
7146 atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
7147 /* and that it is marked active as soon as the irq could fire. */
7151 static int intel_gen2_queue_flip(struct drm_device *dev,
7152 struct drm_crtc *crtc,
7153 struct drm_framebuffer *fb,
7154 struct drm_i915_gem_object *obj)
7156 struct drm_i915_private *dev_priv = dev->dev_private;
7157 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7159 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7162 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7166 ret = intel_ring_begin(ring, 6);
7170 /* Can't queue multiple flips, so wait for the previous
7171 * one to finish before executing the next.
7173 if (intel_crtc->plane)
7174 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7176 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
7177 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7178 intel_ring_emit(ring, MI_NOOP);
7179 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7180 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7181 intel_ring_emit(ring, fb->pitches[0]);
7182 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7183 intel_ring_emit(ring, 0); /* aux display base address, unused */
7185 intel_mark_page_flip_active(intel_crtc);
7186 intel_ring_advance(ring);
7190 intel_unpin_fb_obj(obj);
7195 static int intel_gen3_queue_flip(struct drm_device *dev,
7196 struct drm_crtc *crtc,
7197 struct drm_framebuffer *fb,
7198 struct drm_i915_gem_object *obj)
7200 struct drm_i915_private *dev_priv = dev->dev_private;
7201 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7203 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7206 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7210 ret = intel_ring_begin(ring, 6);
7214 if (intel_crtc->plane)
7215 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7217 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
7218 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7219 intel_ring_emit(ring, MI_NOOP);
7220 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
7221 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7222 intel_ring_emit(ring, fb->pitches[0]);
7223 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7224 intel_ring_emit(ring, MI_NOOP);
7226 intel_mark_page_flip_active(intel_crtc);
7227 intel_ring_advance(ring);
7231 intel_unpin_fb_obj(obj);
7236 static int intel_gen4_queue_flip(struct drm_device *dev,
7237 struct drm_crtc *crtc,
7238 struct drm_framebuffer *fb,
7239 struct drm_i915_gem_object *obj)
7241 struct drm_i915_private *dev_priv = dev->dev_private;
7242 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7243 uint32_t pf, pipesrc;
7244 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7247 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7251 ret = intel_ring_begin(ring, 4);
7255 /* i965+ uses the linear or tiled offsets from the
7256 * Display Registers (which do not change across a page-flip)
7257 * so we need only reprogram the base address.
7259 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7260 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7261 intel_ring_emit(ring, fb->pitches[0]);
7262 intel_ring_emit(ring,
7263 (obj->gtt_offset + intel_crtc->dspaddr_offset) |
7266 /* XXX Enabling the panel-fitter across page-flip is so far
7267 * untested on non-native modes, so ignore it for now.
7268 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
7271 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
7272 intel_ring_emit(ring, pf | pipesrc);
7274 intel_mark_page_flip_active(intel_crtc);
7275 intel_ring_advance(ring);
7279 intel_unpin_fb_obj(obj);
7284 static int intel_gen6_queue_flip(struct drm_device *dev,
7285 struct drm_crtc *crtc,
7286 struct drm_framebuffer *fb,
7287 struct drm_i915_gem_object *obj)
7289 struct drm_i915_private *dev_priv = dev->dev_private;
7290 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7291 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7292 uint32_t pf, pipesrc;
7295 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7299 ret = intel_ring_begin(ring, 4);
7303 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7304 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7305 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
7306 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7308 /* Contrary to the suggestions in the documentation,
7309 * "Enable Panel Fitter" does not seem to be required when page
7310 * flipping with a non-native mode, and worse causes a normal
7312 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
7315 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
7316 intel_ring_emit(ring, pf | pipesrc);
7318 intel_mark_page_flip_active(intel_crtc);
7319 intel_ring_advance(ring);
7323 intel_unpin_fb_obj(obj);
7329 * On gen7 we currently use the blit ring because (in early silicon at least)
7330 * the render ring doesn't give us interrpts for page flip completion, which
7331 * means clients will hang after the first flip is queued. Fortunately the
7332 * blit ring generates interrupts properly, so use it instead.
7334 static int intel_gen7_queue_flip(struct drm_device *dev,
7335 struct drm_crtc *crtc,
7336 struct drm_framebuffer *fb,
7337 struct drm_i915_gem_object *obj)
7339 struct drm_i915_private *dev_priv = dev->dev_private;
7340 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7341 struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
7342 uint32_t plane_bit = 0;
7345 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7349 switch(intel_crtc->plane) {
7351 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
7354 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
7357 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
7360 WARN_ONCE(1, "unknown plane in flip command\n");
7365 ret = intel_ring_begin(ring, 4);
7369 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
7370 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
7371 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7372 intel_ring_emit(ring, (MI_NOOP));
7374 intel_mark_page_flip_active(intel_crtc);
7375 intel_ring_advance(ring);
7379 intel_unpin_fb_obj(obj);
7384 static int intel_default_queue_flip(struct drm_device *dev,
7385 struct drm_crtc *crtc,
7386 struct drm_framebuffer *fb,
7387 struct drm_i915_gem_object *obj)
7392 static int intel_crtc_page_flip(struct drm_crtc *crtc,
7393 struct drm_framebuffer *fb,
7394 struct drm_pending_vblank_event *event)
7396 struct drm_device *dev = crtc->dev;
7397 struct drm_i915_private *dev_priv = dev->dev_private;
7398 struct drm_framebuffer *old_fb = crtc->fb;
7399 struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
7400 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7401 struct intel_unpin_work *work;
7402 unsigned long flags;
7405 /* Can't change pixel format via MI display flips. */
7406 if (fb->pixel_format != crtc->fb->pixel_format)
7410 * TILEOFF/LINOFF registers can't be changed via MI display flips.
7411 * Note that pitch changes could also affect these register.
7413 if (INTEL_INFO(dev)->gen > 3 &&
7414 (fb->offsets[0] != crtc->fb->offsets[0] ||
7415 fb->pitches[0] != crtc->fb->pitches[0]))
7418 work = kzalloc(sizeof *work, GFP_KERNEL);
7422 work->event = event;
7424 work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
7425 INIT_WORK(&work->work, intel_unpin_work_fn);
7427 ret = drm_vblank_get(dev, intel_crtc->pipe);
7431 /* We borrow the event spin lock for protecting unpin_work */
7432 spin_lock_irqsave(&dev->event_lock, flags);
7433 if (intel_crtc->unpin_work) {
7434 spin_unlock_irqrestore(&dev->event_lock, flags);
7436 drm_vblank_put(dev, intel_crtc->pipe);
7438 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
7441 intel_crtc->unpin_work = work;
7442 spin_unlock_irqrestore(&dev->event_lock, flags);
7444 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
7445 flush_workqueue(dev_priv->wq);
7447 ret = i915_mutex_lock_interruptible(dev);
7451 /* Reference the objects for the scheduled work. */
7452 drm_gem_object_reference(&work->old_fb_obj->base);
7453 drm_gem_object_reference(&obj->base);
7457 work->pending_flip_obj = obj;
7459 work->enable_stall_check = true;
7461 atomic_inc(&intel_crtc->unpin_work_count);
7462 intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
7464 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj);
7466 goto cleanup_pending;
7468 intel_disable_fbc(dev);
7469 intel_mark_fb_busy(obj);
7470 mutex_unlock(&dev->struct_mutex);
7472 trace_i915_flip_request(intel_crtc->plane, obj);
7477 atomic_dec(&intel_crtc->unpin_work_count);
7479 drm_gem_object_unreference(&work->old_fb_obj->base);
7480 drm_gem_object_unreference(&obj->base);
7481 mutex_unlock(&dev->struct_mutex);
7484 spin_lock_irqsave(&dev->event_lock, flags);
7485 intel_crtc->unpin_work = NULL;
7486 spin_unlock_irqrestore(&dev->event_lock, flags);
7488 drm_vblank_put(dev, intel_crtc->pipe);
7495 static struct drm_crtc_helper_funcs intel_helper_funcs = {
7496 .mode_set_base_atomic = intel_pipe_set_base_atomic,
7497 .load_lut = intel_crtc_load_lut,
7500 bool intel_encoder_check_is_cloned(struct intel_encoder *encoder)
7502 struct intel_encoder *other_encoder;
7503 struct drm_crtc *crtc = &encoder->new_crtc->base;
7508 list_for_each_entry(other_encoder,
7509 &crtc->dev->mode_config.encoder_list,
7512 if (&other_encoder->new_crtc->base != crtc ||
7513 encoder == other_encoder)
7522 static bool intel_encoder_crtc_ok(struct drm_encoder *encoder,
7523 struct drm_crtc *crtc)
7525 struct drm_device *dev;
7526 struct drm_crtc *tmp;
7529 WARN(!crtc, "checking null crtc?\n");
7533 list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
7539 if (encoder->possible_crtcs & crtc_mask)
7545 * intel_modeset_update_staged_output_state
7547 * Updates the staged output configuration state, e.g. after we've read out the
7550 static void intel_modeset_update_staged_output_state(struct drm_device *dev)
7552 struct intel_encoder *encoder;
7553 struct intel_connector *connector;
7555 list_for_each_entry(connector, &dev->mode_config.connector_list,
7557 connector->new_encoder =
7558 to_intel_encoder(connector->base.encoder);
7561 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7564 to_intel_crtc(encoder->base.crtc);
7569 * intel_modeset_commit_output_state
7571 * This function copies the stage display pipe configuration to the real one.
7573 static void intel_modeset_commit_output_state(struct drm_device *dev)
7575 struct intel_encoder *encoder;
7576 struct intel_connector *connector;
7578 list_for_each_entry(connector, &dev->mode_config.connector_list,
7580 connector->base.encoder = &connector->new_encoder->base;
7583 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7585 encoder->base.crtc = &encoder->new_crtc->base;
7590 pipe_config_set_bpp(struct drm_crtc *crtc,
7591 struct drm_framebuffer *fb,
7592 struct intel_crtc_config *pipe_config)
7594 struct drm_device *dev = crtc->dev;
7595 struct drm_connector *connector;
7598 switch (fb->pixel_format) {
7600 bpp = 8*3; /* since we go through a colormap */
7602 case DRM_FORMAT_XRGB1555:
7603 case DRM_FORMAT_ARGB1555:
7604 /* checked in intel_framebuffer_init already */
7605 if (WARN_ON(INTEL_INFO(dev)->gen > 3))
7607 case DRM_FORMAT_RGB565:
7608 bpp = 6*3; /* min is 18bpp */
7610 case DRM_FORMAT_XBGR8888:
7611 case DRM_FORMAT_ABGR8888:
7612 /* checked in intel_framebuffer_init already */
7613 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
7615 case DRM_FORMAT_XRGB8888:
7616 case DRM_FORMAT_ARGB8888:
7619 case DRM_FORMAT_XRGB2101010:
7620 case DRM_FORMAT_ARGB2101010:
7621 case DRM_FORMAT_XBGR2101010:
7622 case DRM_FORMAT_ABGR2101010:
7623 /* checked in intel_framebuffer_init already */
7624 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
7628 /* TODO: gen4+ supports 16 bpc floating point, too. */
7630 DRM_DEBUG_KMS("unsupported depth\n");
7634 pipe_config->pipe_bpp = bpp;
7636 /* Clamp display bpp to EDID value */
7637 list_for_each_entry(connector, &dev->mode_config.connector_list,
7639 if (connector->encoder && connector->encoder->crtc != crtc)
7642 /* Don't use an invalid EDID bpc value */
7643 if (connector->display_info.bpc &&
7644 connector->display_info.bpc * 3 < bpp) {
7645 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
7646 bpp, connector->display_info.bpc*3);
7647 pipe_config->pipe_bpp = connector->display_info.bpc*3;
7650 /* Clamp bpp to 8 on screens without EDID 1.4 */
7651 if (connector->display_info.bpc == 0 && bpp > 24) {
7652 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
7654 pipe_config->pipe_bpp = 24;
7661 static struct intel_crtc_config *
7662 intel_modeset_pipe_config(struct drm_crtc *crtc,
7663 struct drm_framebuffer *fb,
7664 struct drm_display_mode *mode)
7666 struct drm_device *dev = crtc->dev;
7667 struct drm_encoder_helper_funcs *encoder_funcs;
7668 struct intel_encoder *encoder;
7669 struct intel_crtc_config *pipe_config;
7672 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
7674 return ERR_PTR(-ENOMEM);
7676 drm_mode_copy(&pipe_config->adjusted_mode, mode);
7677 drm_mode_copy(&pipe_config->requested_mode, mode);
7679 plane_bpp = pipe_config_set_bpp(crtc, fb, pipe_config);
7683 /* Pass our mode to the connectors and the CRTC to give them a chance to
7684 * adjust it according to limitations or connector properties, and also
7685 * a chance to reject the mode entirely.
7687 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7690 if (&encoder->new_crtc->base != crtc)
7693 if (encoder->compute_config) {
7694 if (!(encoder->compute_config(encoder, pipe_config))) {
7695 DRM_DEBUG_KMS("Encoder config failure\n");
7702 encoder_funcs = encoder->base.helper_private;
7703 if (!(encoder_funcs->mode_fixup(&encoder->base,
7704 &pipe_config->requested_mode,
7705 &pipe_config->adjusted_mode))) {
7706 DRM_DEBUG_KMS("Encoder fixup failed\n");
7711 if (!(intel_crtc_compute_config(crtc, pipe_config))) {
7712 DRM_DEBUG_KMS("CRTC fixup failed\n");
7715 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
7717 pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
7718 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
7719 plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
7724 return ERR_PTR(-EINVAL);
7727 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
7728 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
7730 intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
7731 unsigned *prepare_pipes, unsigned *disable_pipes)
7733 struct intel_crtc *intel_crtc;
7734 struct drm_device *dev = crtc->dev;
7735 struct intel_encoder *encoder;
7736 struct intel_connector *connector;
7737 struct drm_crtc *tmp_crtc;
7739 *disable_pipes = *modeset_pipes = *prepare_pipes = 0;
7741 /* Check which crtcs have changed outputs connected to them, these need
7742 * to be part of the prepare_pipes mask. We don't (yet) support global
7743 * modeset across multiple crtcs, so modeset_pipes will only have one
7744 * bit set at most. */
7745 list_for_each_entry(connector, &dev->mode_config.connector_list,
7747 if (connector->base.encoder == &connector->new_encoder->base)
7750 if (connector->base.encoder) {
7751 tmp_crtc = connector->base.encoder->crtc;
7753 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
7756 if (connector->new_encoder)
7758 1 << connector->new_encoder->new_crtc->pipe;
7761 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7763 if (encoder->base.crtc == &encoder->new_crtc->base)
7766 if (encoder->base.crtc) {
7767 tmp_crtc = encoder->base.crtc;
7769 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
7772 if (encoder->new_crtc)
7773 *prepare_pipes |= 1 << encoder->new_crtc->pipe;
7776 /* Check for any pipes that will be fully disabled ... */
7777 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
7781 /* Don't try to disable disabled crtcs. */
7782 if (!intel_crtc->base.enabled)
7785 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7787 if (encoder->new_crtc == intel_crtc)
7792 *disable_pipes |= 1 << intel_crtc->pipe;
7796 /* set_mode is also used to update properties on life display pipes. */
7797 intel_crtc = to_intel_crtc(crtc);
7799 *prepare_pipes |= 1 << intel_crtc->pipe;
7802 * For simplicity do a full modeset on any pipe where the output routing
7803 * changed. We could be more clever, but that would require us to be
7804 * more careful with calling the relevant encoder->mode_set functions.
7807 *modeset_pipes = *prepare_pipes;
7809 /* ... and mask these out. */
7810 *modeset_pipes &= ~(*disable_pipes);
7811 *prepare_pipes &= ~(*disable_pipes);
7814 * HACK: We don't (yet) fully support global modesets. intel_set_config
7815 * obies this rule, but the modeset restore mode of
7816 * intel_modeset_setup_hw_state does not.
7818 *modeset_pipes &= 1 << intel_crtc->pipe;
7819 *prepare_pipes &= 1 << intel_crtc->pipe;
7821 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
7822 *modeset_pipes, *prepare_pipes, *disable_pipes);
7825 static bool intel_crtc_in_use(struct drm_crtc *crtc)
7827 struct drm_encoder *encoder;
7828 struct drm_device *dev = crtc->dev;
7830 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
7831 if (encoder->crtc == crtc)
7838 intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
7840 struct intel_encoder *intel_encoder;
7841 struct intel_crtc *intel_crtc;
7842 struct drm_connector *connector;
7844 list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
7846 if (!intel_encoder->base.crtc)
7849 intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
7851 if (prepare_pipes & (1 << intel_crtc->pipe))
7852 intel_encoder->connectors_active = false;
7855 intel_modeset_commit_output_state(dev);
7857 /* Update computed state. */
7858 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
7860 intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base);
7863 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
7864 if (!connector->encoder || !connector->encoder->crtc)
7867 intel_crtc = to_intel_crtc(connector->encoder->crtc);
7869 if (prepare_pipes & (1 << intel_crtc->pipe)) {
7870 struct drm_property *dpms_property =
7871 dev->mode_config.dpms_property;
7873 connector->dpms = DRM_MODE_DPMS_ON;
7874 drm_object_property_set_value(&connector->base,
7878 intel_encoder = to_intel_encoder(connector->encoder);
7879 intel_encoder->connectors_active = true;
7885 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
7886 list_for_each_entry((intel_crtc), \
7887 &(dev)->mode_config.crtc_list, \
7889 if (mask & (1 <<(intel_crtc)->pipe)) \
7892 intel_pipe_config_compare(struct intel_crtc_config *current_config,
7893 struct intel_crtc_config *pipe_config)
7895 if (current_config->has_pch_encoder != pipe_config->has_pch_encoder) {
7896 DRM_ERROR("mismatch in has_pch_encoder "
7897 "(expected %i, found %i)\n",
7898 current_config->has_pch_encoder,
7899 pipe_config->has_pch_encoder);
7903 if (current_config->fdi_lanes != pipe_config->fdi_lanes) {
7904 DRM_ERROR("mismatch in fdi_lanes "
7905 "(expected %i, found %i)\n",
7906 current_config->fdi_lanes,
7907 pipe_config->fdi_lanes);
7915 intel_modeset_check_state(struct drm_device *dev)
7917 drm_i915_private_t *dev_priv = dev->dev_private;
7918 struct intel_crtc *crtc;
7919 struct intel_encoder *encoder;
7920 struct intel_connector *connector;
7921 struct intel_crtc_config pipe_config;
7923 list_for_each_entry(connector, &dev->mode_config.connector_list,
7925 /* This also checks the encoder/connector hw state with the
7926 * ->get_hw_state callbacks. */
7927 intel_connector_check_state(connector);
7929 WARN(&connector->new_encoder->base != connector->base.encoder,
7930 "connector's staged encoder doesn't match current encoder\n");
7933 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7935 bool enabled = false;
7936 bool active = false;
7937 enum pipe pipe, tracked_pipe;
7939 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
7940 encoder->base.base.id,
7941 drm_get_encoder_name(&encoder->base));
7943 WARN(&encoder->new_crtc->base != encoder->base.crtc,
7944 "encoder's stage crtc doesn't match current crtc\n");
7945 WARN(encoder->connectors_active && !encoder->base.crtc,
7946 "encoder's active_connectors set, but no crtc\n");
7948 list_for_each_entry(connector, &dev->mode_config.connector_list,
7950 if (connector->base.encoder != &encoder->base)
7953 if (connector->base.dpms != DRM_MODE_DPMS_OFF)
7956 WARN(!!encoder->base.crtc != enabled,
7957 "encoder's enabled state mismatch "
7958 "(expected %i, found %i)\n",
7959 !!encoder->base.crtc, enabled);
7960 WARN(active && !encoder->base.crtc,
7961 "active encoder with no crtc\n");
7963 WARN(encoder->connectors_active != active,
7964 "encoder's computed active state doesn't match tracked active state "
7965 "(expected %i, found %i)\n", active, encoder->connectors_active);
7967 active = encoder->get_hw_state(encoder, &pipe);
7968 WARN(active != encoder->connectors_active,
7969 "encoder's hw state doesn't match sw tracking "
7970 "(expected %i, found %i)\n",
7971 encoder->connectors_active, active);
7973 if (!encoder->base.crtc)
7976 tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
7977 WARN(active && pipe != tracked_pipe,
7978 "active encoder's pipe doesn't match"
7979 "(expected %i, found %i)\n",
7980 tracked_pipe, pipe);
7984 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
7986 bool enabled = false;
7987 bool active = false;
7989 DRM_DEBUG_KMS("[CRTC:%d]\n",
7990 crtc->base.base.id);
7992 WARN(crtc->active && !crtc->base.enabled,
7993 "active crtc, but not enabled in sw tracking\n");
7995 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7997 if (encoder->base.crtc != &crtc->base)
8000 if (encoder->connectors_active)
8003 WARN(active != crtc->active,
8004 "crtc's computed active state doesn't match tracked active state "
8005 "(expected %i, found %i)\n", active, crtc->active);
8006 WARN(enabled != crtc->base.enabled,
8007 "crtc's computed enabled state doesn't match tracked enabled state "
8008 "(expected %i, found %i)\n", enabled, crtc->base.enabled);
8010 memset(&pipe_config, 0, sizeof(pipe_config));
8011 pipe_config.cpu_transcoder = crtc->config.cpu_transcoder;
8012 active = dev_priv->display.get_pipe_config(crtc,
8014 WARN(crtc->active != active,
8015 "crtc active state doesn't match with hw state "
8016 "(expected %i, found %i)\n", crtc->active, active);
8019 !intel_pipe_config_compare(&crtc->config, &pipe_config),
8020 "pipe state doesn't match!\n");
8024 static int __intel_set_mode(struct drm_crtc *crtc,
8025 struct drm_display_mode *mode,
8026 int x, int y, struct drm_framebuffer *fb)
8028 struct drm_device *dev = crtc->dev;
8029 drm_i915_private_t *dev_priv = dev->dev_private;
8030 struct drm_display_mode *saved_mode, *saved_hwmode;
8031 struct intel_crtc_config *pipe_config = NULL;
8032 struct intel_crtc *intel_crtc;
8033 unsigned disable_pipes, prepare_pipes, modeset_pipes;
8036 saved_mode = kmalloc(2 * sizeof(*saved_mode), GFP_KERNEL);
8039 saved_hwmode = saved_mode + 1;
8041 intel_modeset_affected_pipes(crtc, &modeset_pipes,
8042 &prepare_pipes, &disable_pipes);
8044 *saved_hwmode = crtc->hwmode;
8045 *saved_mode = crtc->mode;
8047 /* Hack: Because we don't (yet) support global modeset on multiple
8048 * crtcs, we don't keep track of the new mode for more than one crtc.
8049 * Hence simply check whether any bit is set in modeset_pipes in all the
8050 * pieces of code that are not yet converted to deal with mutliple crtcs
8051 * changing their mode at the same time. */
8052 if (modeset_pipes) {
8053 pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
8054 if (IS_ERR(pipe_config)) {
8055 ret = PTR_ERR(pipe_config);
8062 for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
8063 intel_crtc_disable(&intel_crtc->base);
8065 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
8066 if (intel_crtc->base.enabled)
8067 dev_priv->display.crtc_disable(&intel_crtc->base);
8070 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
8071 * to set it here already despite that we pass it down the callchain.
8073 if (modeset_pipes) {
8074 enum transcoder tmp = to_intel_crtc(crtc)->config.cpu_transcoder;
8076 /* mode_set/enable/disable functions rely on a correct pipe
8078 to_intel_crtc(crtc)->config = *pipe_config;
8079 to_intel_crtc(crtc)->config.cpu_transcoder = tmp;
8082 /* Only after disabling all output pipelines that will be changed can we
8083 * update the the output configuration. */
8084 intel_modeset_update_state(dev, prepare_pipes);
8086 if (dev_priv->display.modeset_global_resources)
8087 dev_priv->display.modeset_global_resources(dev);
8089 /* Set up the DPLL and any encoders state that needs to adjust or depend
8092 for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
8093 ret = intel_crtc_mode_set(&intel_crtc->base,
8099 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
8100 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
8101 dev_priv->display.crtc_enable(&intel_crtc->base);
8103 if (modeset_pipes) {
8104 /* Store real post-adjustment hardware mode. */
8105 crtc->hwmode = pipe_config->adjusted_mode;
8107 /* Calculate and store various constants which
8108 * are later needed by vblank and swap-completion
8109 * timestamping. They are derived from true hwmode.
8111 drm_calc_timestamping_constants(crtc);
8114 /* FIXME: add subpixel order */
8116 if (ret && crtc->enabled) {
8117 crtc->hwmode = *saved_hwmode;
8118 crtc->mode = *saved_mode;
8127 int intel_set_mode(struct drm_crtc *crtc,
8128 struct drm_display_mode *mode,
8129 int x, int y, struct drm_framebuffer *fb)
8133 ret = __intel_set_mode(crtc, mode, x, y, fb);
8136 intel_modeset_check_state(crtc->dev);
8141 void intel_crtc_restore_mode(struct drm_crtc *crtc)
8143 intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb);
8146 #undef for_each_intel_crtc_masked
8148 static void intel_set_config_free(struct intel_set_config *config)
8153 kfree(config->save_connector_encoders);
8154 kfree(config->save_encoder_crtcs);
8158 static int intel_set_config_save_state(struct drm_device *dev,
8159 struct intel_set_config *config)
8161 struct drm_encoder *encoder;
8162 struct drm_connector *connector;
8165 config->save_encoder_crtcs =
8166 kcalloc(dev->mode_config.num_encoder,
8167 sizeof(struct drm_crtc *), GFP_KERNEL);
8168 if (!config->save_encoder_crtcs)
8171 config->save_connector_encoders =
8172 kcalloc(dev->mode_config.num_connector,
8173 sizeof(struct drm_encoder *), GFP_KERNEL);
8174 if (!config->save_connector_encoders)
8177 /* Copy data. Note that driver private data is not affected.
8178 * Should anything bad happen only the expected state is
8179 * restored, not the drivers personal bookkeeping.
8182 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
8183 config->save_encoder_crtcs[count++] = encoder->crtc;
8187 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
8188 config->save_connector_encoders[count++] = connector->encoder;
8194 static void intel_set_config_restore_state(struct drm_device *dev,
8195 struct intel_set_config *config)
8197 struct intel_encoder *encoder;
8198 struct intel_connector *connector;
8202 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
8204 to_intel_crtc(config->save_encoder_crtcs[count++]);
8208 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
8209 connector->new_encoder =
8210 to_intel_encoder(config->save_connector_encoders[count++]);
8215 intel_set_config_compute_mode_changes(struct drm_mode_set *set,
8216 struct intel_set_config *config)
8219 /* We should be able to check here if the fb has the same properties
8220 * and then just flip_or_move it */
8221 if (set->crtc->fb != set->fb) {
8222 /* If we have no fb then treat it as a full mode set */
8223 if (set->crtc->fb == NULL) {
8224 DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
8225 config->mode_changed = true;
8226 } else if (set->fb == NULL) {
8227 config->mode_changed = true;
8228 } else if (set->fb->pixel_format !=
8229 set->crtc->fb->pixel_format) {
8230 config->mode_changed = true;
8232 config->fb_changed = true;
8235 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
8236 config->fb_changed = true;
8238 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
8239 DRM_DEBUG_KMS("modes are different, full mode set\n");
8240 drm_mode_debug_printmodeline(&set->crtc->mode);
8241 drm_mode_debug_printmodeline(set->mode);
8242 config->mode_changed = true;
8247 intel_modeset_stage_output_state(struct drm_device *dev,
8248 struct drm_mode_set *set,
8249 struct intel_set_config *config)
8251 struct drm_crtc *new_crtc;
8252 struct intel_connector *connector;
8253 struct intel_encoder *encoder;
8256 /* The upper layers ensure that we either disable a crtc or have a list
8257 * of connectors. For paranoia, double-check this. */
8258 WARN_ON(!set->fb && (set->num_connectors != 0));
8259 WARN_ON(set->fb && (set->num_connectors == 0));
8262 list_for_each_entry(connector, &dev->mode_config.connector_list,
8264 /* Otherwise traverse passed in connector list and get encoders
8266 for (ro = 0; ro < set->num_connectors; ro++) {
8267 if (set->connectors[ro] == &connector->base) {
8268 connector->new_encoder = connector->encoder;
8273 /* If we disable the crtc, disable all its connectors. Also, if
8274 * the connector is on the changing crtc but not on the new
8275 * connector list, disable it. */
8276 if ((!set->fb || ro == set->num_connectors) &&
8277 connector->base.encoder &&
8278 connector->base.encoder->crtc == set->crtc) {
8279 connector->new_encoder = NULL;
8281 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
8282 connector->base.base.id,
8283 drm_get_connector_name(&connector->base));
8287 if (&connector->new_encoder->base != connector->base.encoder) {
8288 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
8289 config->mode_changed = true;
8292 /* connector->new_encoder is now updated for all connectors. */
8294 /* Update crtc of enabled connectors. */
8296 list_for_each_entry(connector, &dev->mode_config.connector_list,
8298 if (!connector->new_encoder)
8301 new_crtc = connector->new_encoder->base.crtc;
8303 for (ro = 0; ro < set->num_connectors; ro++) {
8304 if (set->connectors[ro] == &connector->base)
8305 new_crtc = set->crtc;
8308 /* Make sure the new CRTC will work with the encoder */
8309 if (!intel_encoder_crtc_ok(&connector->new_encoder->base,
8313 connector->encoder->new_crtc = to_intel_crtc(new_crtc);
8315 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
8316 connector->base.base.id,
8317 drm_get_connector_name(&connector->base),
8321 /* Check for any encoders that needs to be disabled. */
8322 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8324 list_for_each_entry(connector,
8325 &dev->mode_config.connector_list,
8327 if (connector->new_encoder == encoder) {
8328 WARN_ON(!connector->new_encoder->new_crtc);
8333 encoder->new_crtc = NULL;
8335 /* Only now check for crtc changes so we don't miss encoders
8336 * that will be disabled. */
8337 if (&encoder->new_crtc->base != encoder->base.crtc) {
8338 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
8339 config->mode_changed = true;
8342 /* Now we've also updated encoder->new_crtc for all encoders. */
8347 static int intel_crtc_set_config(struct drm_mode_set *set)
8349 struct drm_device *dev;
8350 struct drm_mode_set save_set;
8351 struct intel_set_config *config;
8356 BUG_ON(!set->crtc->helper_private);
8358 /* Enforce sane interface api - has been abused by the fb helper. */
8359 BUG_ON(!set->mode && set->fb);
8360 BUG_ON(set->fb && set->num_connectors == 0);
8363 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
8364 set->crtc->base.id, set->fb->base.id,
8365 (int)set->num_connectors, set->x, set->y);
8367 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
8370 dev = set->crtc->dev;
8373 config = kzalloc(sizeof(*config), GFP_KERNEL);
8377 ret = intel_set_config_save_state(dev, config);
8381 save_set.crtc = set->crtc;
8382 save_set.mode = &set->crtc->mode;
8383 save_set.x = set->crtc->x;
8384 save_set.y = set->crtc->y;
8385 save_set.fb = set->crtc->fb;
8387 /* Compute whether we need a full modeset, only an fb base update or no
8388 * change at all. In the future we might also check whether only the
8389 * mode changed, e.g. for LVDS where we only change the panel fitter in
8391 intel_set_config_compute_mode_changes(set, config);
8393 ret = intel_modeset_stage_output_state(dev, set, config);
8397 if (config->mode_changed) {
8399 DRM_DEBUG_KMS("attempting to set mode from"
8401 drm_mode_debug_printmodeline(set->mode);
8404 ret = intel_set_mode(set->crtc, set->mode,
8405 set->x, set->y, set->fb);
8407 DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n",
8408 set->crtc->base.id, ret);
8411 } else if (config->fb_changed) {
8412 intel_crtc_wait_for_pending_flips(set->crtc);
8414 ret = intel_pipe_set_base(set->crtc,
8415 set->x, set->y, set->fb);
8418 intel_set_config_free(config);
8423 intel_set_config_restore_state(dev, config);
8425 /* Try to restore the config */
8426 if (config->mode_changed &&
8427 intel_set_mode(save_set.crtc, save_set.mode,
8428 save_set.x, save_set.y, save_set.fb))
8429 DRM_ERROR("failed to restore config after modeset failure\n");
8432 intel_set_config_free(config);
8436 static const struct drm_crtc_funcs intel_crtc_funcs = {
8437 .cursor_set = intel_crtc_cursor_set,
8438 .cursor_move = intel_crtc_cursor_move,
8439 .gamma_set = intel_crtc_gamma_set,
8440 .set_config = intel_crtc_set_config,
8441 .destroy = intel_crtc_destroy,
8442 .page_flip = intel_crtc_page_flip,
8445 static void intel_cpu_pll_init(struct drm_device *dev)
8448 intel_ddi_pll_init(dev);
8451 static void intel_pch_pll_init(struct drm_device *dev)
8453 drm_i915_private_t *dev_priv = dev->dev_private;
8456 if (dev_priv->num_pch_pll == 0) {
8457 DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n");
8461 for (i = 0; i < dev_priv->num_pch_pll; i++) {
8462 dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i);
8463 dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i);
8464 dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i);
8468 static void intel_crtc_init(struct drm_device *dev, int pipe)
8470 drm_i915_private_t *dev_priv = dev->dev_private;
8471 struct intel_crtc *intel_crtc;
8474 intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
8475 if (intel_crtc == NULL)
8478 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
8480 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
8481 for (i = 0; i < 256; i++) {
8482 intel_crtc->lut_r[i] = i;
8483 intel_crtc->lut_g[i] = i;
8484 intel_crtc->lut_b[i] = i;
8487 /* Swap pipes & planes for FBC on pre-965 */
8488 intel_crtc->pipe = pipe;
8489 intel_crtc->plane = pipe;
8490 intel_crtc->config.cpu_transcoder = pipe;
8491 if (IS_MOBILE(dev) && IS_GEN3(dev)) {
8492 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
8493 intel_crtc->plane = !pipe;
8496 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
8497 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
8498 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
8499 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
8501 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
8504 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
8505 struct drm_file *file)
8507 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
8508 struct drm_mode_object *drmmode_obj;
8509 struct intel_crtc *crtc;
8511 if (!drm_core_check_feature(dev, DRIVER_MODESET))
8514 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
8515 DRM_MODE_OBJECT_CRTC);
8518 DRM_ERROR("no such CRTC id\n");
8522 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
8523 pipe_from_crtc_id->pipe = crtc->pipe;
8528 static int intel_encoder_clones(struct intel_encoder *encoder)
8530 struct drm_device *dev = encoder->base.dev;
8531 struct intel_encoder *source_encoder;
8535 list_for_each_entry(source_encoder,
8536 &dev->mode_config.encoder_list, base.head) {
8538 if (encoder == source_encoder)
8539 index_mask |= (1 << entry);
8541 /* Intel hw has only one MUX where enocoders could be cloned. */
8542 if (encoder->cloneable && source_encoder->cloneable)
8543 index_mask |= (1 << entry);
8551 static bool has_edp_a(struct drm_device *dev)
8553 struct drm_i915_private *dev_priv = dev->dev_private;
8555 if (!IS_MOBILE(dev))
8558 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
8562 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
8568 static void intel_setup_outputs(struct drm_device *dev)
8570 struct drm_i915_private *dev_priv = dev->dev_private;
8571 struct intel_encoder *encoder;
8572 bool dpd_is_edp = false;
8575 has_lvds = intel_lvds_init(dev);
8576 if (!has_lvds && !HAS_PCH_SPLIT(dev)) {
8577 /* disable the panel fitter on everything but LVDS */
8578 I915_WRITE(PFIT_CONTROL, 0);
8582 intel_crt_init(dev);
8587 /* Haswell uses DDI functions to detect digital outputs */
8588 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
8589 /* DDI A only supports eDP */
8591 intel_ddi_init(dev, PORT_A);
8593 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
8595 found = I915_READ(SFUSE_STRAP);
8597 if (found & SFUSE_STRAP_DDIB_DETECTED)
8598 intel_ddi_init(dev, PORT_B);
8599 if (found & SFUSE_STRAP_DDIC_DETECTED)
8600 intel_ddi_init(dev, PORT_C);
8601 if (found & SFUSE_STRAP_DDID_DETECTED)
8602 intel_ddi_init(dev, PORT_D);
8603 } else if (HAS_PCH_SPLIT(dev)) {
8605 dpd_is_edp = intel_dpd_is_edp(dev);
8608 intel_dp_init(dev, DP_A, PORT_A);
8610 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
8611 /* PCH SDVOB multiplex with HDMIB */
8612 found = intel_sdvo_init(dev, PCH_SDVOB, true);
8614 intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
8615 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
8616 intel_dp_init(dev, PCH_DP_B, PORT_B);
8619 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
8620 intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
8622 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
8623 intel_hdmi_init(dev, PCH_HDMID, PORT_D);
8625 if (I915_READ(PCH_DP_C) & DP_DETECTED)
8626 intel_dp_init(dev, PCH_DP_C, PORT_C);
8628 if (I915_READ(PCH_DP_D) & DP_DETECTED)
8629 intel_dp_init(dev, PCH_DP_D, PORT_D);
8630 } else if (IS_VALLEYVIEW(dev)) {
8631 /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */
8632 if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
8633 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C);
8635 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
8636 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
8638 if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
8639 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
8641 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
8644 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
8645 DRM_DEBUG_KMS("probing SDVOB\n");
8646 found = intel_sdvo_init(dev, GEN3_SDVOB, true);
8647 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
8648 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
8649 intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
8652 if (!found && SUPPORTS_INTEGRATED_DP(dev)) {
8653 DRM_DEBUG_KMS("probing DP_B\n");
8654 intel_dp_init(dev, DP_B, PORT_B);
8658 /* Before G4X SDVOC doesn't have its own detect register */
8660 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
8661 DRM_DEBUG_KMS("probing SDVOC\n");
8662 found = intel_sdvo_init(dev, GEN3_SDVOC, false);
8665 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
8667 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
8668 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
8669 intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
8671 if (SUPPORTS_INTEGRATED_DP(dev)) {
8672 DRM_DEBUG_KMS("probing DP_C\n");
8673 intel_dp_init(dev, DP_C, PORT_C);
8677 if (SUPPORTS_INTEGRATED_DP(dev) &&
8678 (I915_READ(DP_D) & DP_DETECTED)) {
8679 DRM_DEBUG_KMS("probing DP_D\n");
8680 intel_dp_init(dev, DP_D, PORT_D);
8682 } else if (IS_GEN2(dev))
8683 intel_dvo_init(dev);
8685 if (SUPPORTS_TV(dev))
8688 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
8689 encoder->base.possible_crtcs = encoder->crtc_mask;
8690 encoder->base.possible_clones =
8691 intel_encoder_clones(encoder);
8694 intel_init_pch_refclk(dev);
8696 drm_helper_move_panel_connectors_to_head(dev);
8699 static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
8701 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
8703 drm_framebuffer_cleanup(fb);
8704 drm_gem_object_unreference_unlocked(&intel_fb->obj->base);
8709 static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
8710 struct drm_file *file,
8711 unsigned int *handle)
8713 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
8714 struct drm_i915_gem_object *obj = intel_fb->obj;
8716 return drm_gem_handle_create(file, &obj->base, handle);
8719 static const struct drm_framebuffer_funcs intel_fb_funcs = {
8720 .destroy = intel_user_framebuffer_destroy,
8721 .create_handle = intel_user_framebuffer_create_handle,
8724 int intel_framebuffer_init(struct drm_device *dev,
8725 struct intel_framebuffer *intel_fb,
8726 struct drm_mode_fb_cmd2 *mode_cmd,
8727 struct drm_i915_gem_object *obj)
8731 if (obj->tiling_mode == I915_TILING_Y) {
8732 DRM_DEBUG("hardware does not support tiling Y\n");
8736 if (mode_cmd->pitches[0] & 63) {
8737 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
8738 mode_cmd->pitches[0]);
8742 /* FIXME <= Gen4 stride limits are bit unclear */
8743 if (mode_cmd->pitches[0] > 32768) {
8744 DRM_DEBUG("pitch (%d) must be at less than 32768\n",
8745 mode_cmd->pitches[0]);
8749 if (obj->tiling_mode != I915_TILING_NONE &&
8750 mode_cmd->pitches[0] != obj->stride) {
8751 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
8752 mode_cmd->pitches[0], obj->stride);
8756 /* Reject formats not supported by any plane early. */
8757 switch (mode_cmd->pixel_format) {
8759 case DRM_FORMAT_RGB565:
8760 case DRM_FORMAT_XRGB8888:
8761 case DRM_FORMAT_ARGB8888:
8763 case DRM_FORMAT_XRGB1555:
8764 case DRM_FORMAT_ARGB1555:
8765 if (INTEL_INFO(dev)->gen > 3) {
8766 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
8770 case DRM_FORMAT_XBGR8888:
8771 case DRM_FORMAT_ABGR8888:
8772 case DRM_FORMAT_XRGB2101010:
8773 case DRM_FORMAT_ARGB2101010:
8774 case DRM_FORMAT_XBGR2101010:
8775 case DRM_FORMAT_ABGR2101010:
8776 if (INTEL_INFO(dev)->gen < 4) {
8777 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
8781 case DRM_FORMAT_YUYV:
8782 case DRM_FORMAT_UYVY:
8783 case DRM_FORMAT_YVYU:
8784 case DRM_FORMAT_VYUY:
8785 if (INTEL_INFO(dev)->gen < 5) {
8786 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
8791 DRM_DEBUG("unsupported pixel format 0x%08x\n", mode_cmd->pixel_format);
8795 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
8796 if (mode_cmd->offsets[0] != 0)
8799 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
8800 intel_fb->obj = obj;
8802 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
8804 DRM_ERROR("framebuffer init failed %d\n", ret);
8811 static struct drm_framebuffer *
8812 intel_user_framebuffer_create(struct drm_device *dev,
8813 struct drm_file *filp,
8814 struct drm_mode_fb_cmd2 *mode_cmd)
8816 struct drm_i915_gem_object *obj;
8818 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
8819 mode_cmd->handles[0]));
8820 if (&obj->base == NULL)
8821 return ERR_PTR(-ENOENT);
8823 return intel_framebuffer_create(dev, mode_cmd, obj);
8826 static const struct drm_mode_config_funcs intel_mode_funcs = {
8827 .fb_create = intel_user_framebuffer_create,
8828 .output_poll_changed = intel_fb_output_poll_changed,
8831 /* Set up chip specific display functions */
8832 static void intel_init_display(struct drm_device *dev)
8834 struct drm_i915_private *dev_priv = dev->dev_private;
8837 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
8838 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
8839 dev_priv->display.crtc_enable = haswell_crtc_enable;
8840 dev_priv->display.crtc_disable = haswell_crtc_disable;
8841 dev_priv->display.off = haswell_crtc_off;
8842 dev_priv->display.update_plane = ironlake_update_plane;
8843 } else if (HAS_PCH_SPLIT(dev)) {
8844 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
8845 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
8846 dev_priv->display.crtc_enable = ironlake_crtc_enable;
8847 dev_priv->display.crtc_disable = ironlake_crtc_disable;
8848 dev_priv->display.off = ironlake_crtc_off;
8849 dev_priv->display.update_plane = ironlake_update_plane;
8850 } else if (IS_VALLEYVIEW(dev)) {
8851 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
8852 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
8853 dev_priv->display.crtc_enable = valleyview_crtc_enable;
8854 dev_priv->display.crtc_disable = i9xx_crtc_disable;
8855 dev_priv->display.off = i9xx_crtc_off;
8856 dev_priv->display.update_plane = i9xx_update_plane;
8858 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
8859 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
8860 dev_priv->display.crtc_enable = i9xx_crtc_enable;
8861 dev_priv->display.crtc_disable = i9xx_crtc_disable;
8862 dev_priv->display.off = i9xx_crtc_off;
8863 dev_priv->display.update_plane = i9xx_update_plane;
8866 /* Returns the core display clock speed */
8867 if (IS_VALLEYVIEW(dev))
8868 dev_priv->display.get_display_clock_speed =
8869 valleyview_get_display_clock_speed;
8870 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
8871 dev_priv->display.get_display_clock_speed =
8872 i945_get_display_clock_speed;
8873 else if (IS_I915G(dev))
8874 dev_priv->display.get_display_clock_speed =
8875 i915_get_display_clock_speed;
8876 else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev))
8877 dev_priv->display.get_display_clock_speed =
8878 i9xx_misc_get_display_clock_speed;
8879 else if (IS_I915GM(dev))
8880 dev_priv->display.get_display_clock_speed =
8881 i915gm_get_display_clock_speed;
8882 else if (IS_I865G(dev))
8883 dev_priv->display.get_display_clock_speed =
8884 i865_get_display_clock_speed;
8885 else if (IS_I85X(dev))
8886 dev_priv->display.get_display_clock_speed =
8887 i855_get_display_clock_speed;
8889 dev_priv->display.get_display_clock_speed =
8890 i830_get_display_clock_speed;
8892 if (HAS_PCH_SPLIT(dev)) {
8894 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
8895 dev_priv->display.write_eld = ironlake_write_eld;
8896 } else if (IS_GEN6(dev)) {
8897 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
8898 dev_priv->display.write_eld = ironlake_write_eld;
8899 } else if (IS_IVYBRIDGE(dev)) {
8900 /* FIXME: detect B0+ stepping and use auto training */
8901 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
8902 dev_priv->display.write_eld = ironlake_write_eld;
8903 dev_priv->display.modeset_global_resources =
8904 ivb_modeset_global_resources;
8905 } else if (IS_HASWELL(dev)) {
8906 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
8907 dev_priv->display.write_eld = haswell_write_eld;
8908 dev_priv->display.modeset_global_resources =
8909 haswell_modeset_global_resources;
8911 } else if (IS_G4X(dev)) {
8912 dev_priv->display.write_eld = g4x_write_eld;
8915 /* Default just returns -ENODEV to indicate unsupported */
8916 dev_priv->display.queue_flip = intel_default_queue_flip;
8918 switch (INTEL_INFO(dev)->gen) {
8920 dev_priv->display.queue_flip = intel_gen2_queue_flip;
8924 dev_priv->display.queue_flip = intel_gen3_queue_flip;
8929 dev_priv->display.queue_flip = intel_gen4_queue_flip;
8933 dev_priv->display.queue_flip = intel_gen6_queue_flip;
8936 dev_priv->display.queue_flip = intel_gen7_queue_flip;
8942 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
8943 * resume, or other times. This quirk makes sure that's the case for
8946 static void quirk_pipea_force(struct drm_device *dev)
8948 struct drm_i915_private *dev_priv = dev->dev_private;
8950 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
8951 DRM_INFO("applying pipe a force quirk\n");
8955 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
8957 static void quirk_ssc_force_disable(struct drm_device *dev)
8959 struct drm_i915_private *dev_priv = dev->dev_private;
8960 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
8961 DRM_INFO("applying lvds SSC disable quirk\n");
8965 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
8968 static void quirk_invert_brightness(struct drm_device *dev)
8970 struct drm_i915_private *dev_priv = dev->dev_private;
8971 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
8972 DRM_INFO("applying inverted panel brightness quirk\n");
8975 struct intel_quirk {
8977 int subsystem_vendor;
8978 int subsystem_device;
8979 void (*hook)(struct drm_device *dev);
8982 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
8983 struct intel_dmi_quirk {
8984 void (*hook)(struct drm_device *dev);
8985 const struct dmi_system_id (*dmi_id_list)[];
8988 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
8990 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
8994 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
8996 .dmi_id_list = &(const struct dmi_system_id[]) {
8998 .callback = intel_dmi_reverse_brightness,
8999 .ident = "NCR Corporation",
9000 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
9001 DMI_MATCH(DMI_PRODUCT_NAME, ""),
9004 { } /* terminating entry */
9006 .hook = quirk_invert_brightness,
9010 static struct intel_quirk intel_quirks[] = {
9011 /* HP Mini needs pipe A force quirk (LP: #322104) */
9012 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
9014 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
9015 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
9017 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
9018 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
9020 /* 830/845 need to leave pipe A & dpll A up */
9021 { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
9022 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
9024 /* Lenovo U160 cannot use SSC on LVDS */
9025 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
9027 /* Sony Vaio Y cannot use SSC on LVDS */
9028 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
9030 /* Acer Aspire 5734Z must invert backlight brightness */
9031 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
9033 /* Acer/eMachines G725 */
9034 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
9036 /* Acer/eMachines e725 */
9037 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
9039 /* Acer/Packard Bell NCL20 */
9040 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
9042 /* Acer Aspire 4736Z */
9043 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
9046 static void intel_init_quirks(struct drm_device *dev)
9048 struct pci_dev *d = dev->pdev;
9051 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
9052 struct intel_quirk *q = &intel_quirks[i];
9054 if (d->device == q->device &&
9055 (d->subsystem_vendor == q->subsystem_vendor ||
9056 q->subsystem_vendor == PCI_ANY_ID) &&
9057 (d->subsystem_device == q->subsystem_device ||
9058 q->subsystem_device == PCI_ANY_ID))
9061 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
9062 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
9063 intel_dmi_quirks[i].hook(dev);
9067 /* Disable the VGA plane that we never use */
9068 static void i915_disable_vga(struct drm_device *dev)
9070 struct drm_i915_private *dev_priv = dev->dev_private;
9072 u32 vga_reg = i915_vgacntrl_reg(dev);
9074 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
9075 outb(SR01, VGA_SR_INDEX);
9076 sr1 = inb(VGA_SR_DATA);
9077 outb(sr1 | 1<<5, VGA_SR_DATA);
9078 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
9081 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
9082 POSTING_READ(vga_reg);
9085 void intel_modeset_init_hw(struct drm_device *dev)
9087 intel_init_power_well(dev);
9089 intel_prepare_ddi(dev);
9091 intel_init_clock_gating(dev);
9093 mutex_lock(&dev->struct_mutex);
9094 intel_enable_gt_powersave(dev);
9095 mutex_unlock(&dev->struct_mutex);
9098 void intel_modeset_init(struct drm_device *dev)
9100 struct drm_i915_private *dev_priv = dev->dev_private;
9103 drm_mode_config_init(dev);
9105 dev->mode_config.min_width = 0;
9106 dev->mode_config.min_height = 0;
9108 dev->mode_config.preferred_depth = 24;
9109 dev->mode_config.prefer_shadow = 1;
9111 dev->mode_config.funcs = &intel_mode_funcs;
9113 intel_init_quirks(dev);
9117 if (INTEL_INFO(dev)->num_pipes == 0)
9120 intel_init_display(dev);
9123 dev->mode_config.max_width = 2048;
9124 dev->mode_config.max_height = 2048;
9125 } else if (IS_GEN3(dev)) {
9126 dev->mode_config.max_width = 4096;
9127 dev->mode_config.max_height = 4096;
9129 dev->mode_config.max_width = 8192;
9130 dev->mode_config.max_height = 8192;
9132 dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
9134 DRM_DEBUG_KMS("%d display pipe%s available.\n",
9135 INTEL_INFO(dev)->num_pipes,
9136 INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
9138 for (i = 0; i < INTEL_INFO(dev)->num_pipes; i++) {
9139 intel_crtc_init(dev, i);
9140 for (j = 0; j < dev_priv->num_plane; j++) {
9141 ret = intel_plane_init(dev, i, j);
9143 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
9144 pipe_name(i), sprite_name(i, j), ret);
9148 intel_cpu_pll_init(dev);
9149 intel_pch_pll_init(dev);
9151 /* Just disable it once at startup */
9152 i915_disable_vga(dev);
9153 intel_setup_outputs(dev);
9155 /* Just in case the BIOS is doing something questionable. */
9156 intel_disable_fbc(dev);
9160 intel_connector_break_all_links(struct intel_connector *connector)
9162 connector->base.dpms = DRM_MODE_DPMS_OFF;
9163 connector->base.encoder = NULL;
9164 connector->encoder->connectors_active = false;
9165 connector->encoder->base.crtc = NULL;
9168 static void intel_enable_pipe_a(struct drm_device *dev)
9170 struct intel_connector *connector;
9171 struct drm_connector *crt = NULL;
9172 struct intel_load_detect_pipe load_detect_temp;
9174 /* We can't just switch on the pipe A, we need to set things up with a
9175 * proper mode and output configuration. As a gross hack, enable pipe A
9176 * by enabling the load detect pipe once. */
9177 list_for_each_entry(connector,
9178 &dev->mode_config.connector_list,
9180 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
9181 crt = &connector->base;
9189 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
9190 intel_release_load_detect_pipe(crt, &load_detect_temp);
9196 intel_check_plane_mapping(struct intel_crtc *crtc)
9198 struct drm_device *dev = crtc->base.dev;
9199 struct drm_i915_private *dev_priv = dev->dev_private;
9202 if (INTEL_INFO(dev)->num_pipes == 1)
9205 reg = DSPCNTR(!crtc->plane);
9206 val = I915_READ(reg);
9208 if ((val & DISPLAY_PLANE_ENABLE) &&
9209 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
9215 static void intel_sanitize_crtc(struct intel_crtc *crtc)
9217 struct drm_device *dev = crtc->base.dev;
9218 struct drm_i915_private *dev_priv = dev->dev_private;
9221 /* Clear any frame start delays used for debugging left by the BIOS */
9222 reg = PIPECONF(crtc->config.cpu_transcoder);
9223 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
9225 /* We need to sanitize the plane -> pipe mapping first because this will
9226 * disable the crtc (and hence change the state) if it is wrong. Note
9227 * that gen4+ has a fixed plane -> pipe mapping. */
9228 if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
9229 struct intel_connector *connector;
9232 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
9233 crtc->base.base.id);
9235 /* Pipe has the wrong plane attached and the plane is active.
9236 * Temporarily change the plane mapping and disable everything
9238 plane = crtc->plane;
9239 crtc->plane = !plane;
9240 dev_priv->display.crtc_disable(&crtc->base);
9241 crtc->plane = plane;
9243 /* ... and break all links. */
9244 list_for_each_entry(connector, &dev->mode_config.connector_list,
9246 if (connector->encoder->base.crtc != &crtc->base)
9249 intel_connector_break_all_links(connector);
9252 WARN_ON(crtc->active);
9253 crtc->base.enabled = false;
9256 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
9257 crtc->pipe == PIPE_A && !crtc->active) {
9258 /* BIOS forgot to enable pipe A, this mostly happens after
9259 * resume. Force-enable the pipe to fix this, the update_dpms
9260 * call below we restore the pipe to the right state, but leave
9261 * the required bits on. */
9262 intel_enable_pipe_a(dev);
9265 /* Adjust the state of the output pipe according to whether we
9266 * have active connectors/encoders. */
9267 intel_crtc_update_dpms(&crtc->base);
9269 if (crtc->active != crtc->base.enabled) {
9270 struct intel_encoder *encoder;
9272 /* This can happen either due to bugs in the get_hw_state
9273 * functions or because the pipe is force-enabled due to the
9275 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
9277 crtc->base.enabled ? "enabled" : "disabled",
9278 crtc->active ? "enabled" : "disabled");
9280 crtc->base.enabled = crtc->active;
9282 /* Because we only establish the connector -> encoder ->
9283 * crtc links if something is active, this means the
9284 * crtc is now deactivated. Break the links. connector
9285 * -> encoder links are only establish when things are
9286 * actually up, hence no need to break them. */
9287 WARN_ON(crtc->active);
9289 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
9290 WARN_ON(encoder->connectors_active);
9291 encoder->base.crtc = NULL;
9296 static void intel_sanitize_encoder(struct intel_encoder *encoder)
9298 struct intel_connector *connector;
9299 struct drm_device *dev = encoder->base.dev;
9301 /* We need to check both for a crtc link (meaning that the
9302 * encoder is active and trying to read from a pipe) and the
9303 * pipe itself being active. */
9304 bool has_active_crtc = encoder->base.crtc &&
9305 to_intel_crtc(encoder->base.crtc)->active;
9307 if (encoder->connectors_active && !has_active_crtc) {
9308 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
9309 encoder->base.base.id,
9310 drm_get_encoder_name(&encoder->base));
9312 /* Connector is active, but has no active pipe. This is
9313 * fallout from our resume register restoring. Disable
9314 * the encoder manually again. */
9315 if (encoder->base.crtc) {
9316 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
9317 encoder->base.base.id,
9318 drm_get_encoder_name(&encoder->base));
9319 encoder->disable(encoder);
9322 /* Inconsistent output/port/pipe state happens presumably due to
9323 * a bug in one of the get_hw_state functions. Or someplace else
9324 * in our code, like the register restore mess on resume. Clamp
9325 * things to off as a safer default. */
9326 list_for_each_entry(connector,
9327 &dev->mode_config.connector_list,
9329 if (connector->encoder != encoder)
9332 intel_connector_break_all_links(connector);
9335 /* Enabled encoders without active connectors will be fixed in
9336 * the crtc fixup. */
9339 void i915_redisable_vga(struct drm_device *dev)
9341 struct drm_i915_private *dev_priv = dev->dev_private;
9342 u32 vga_reg = i915_vgacntrl_reg(dev);
9344 if (I915_READ(vga_reg) != VGA_DISP_DISABLE) {
9345 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
9346 i915_disable_vga(dev);
9350 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
9351 * and i915 state tracking structures. */
9352 void intel_modeset_setup_hw_state(struct drm_device *dev,
9355 struct drm_i915_private *dev_priv = dev->dev_private;
9358 struct drm_plane *plane;
9359 struct intel_crtc *crtc;
9360 struct intel_encoder *encoder;
9361 struct intel_connector *connector;
9364 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
9366 if (tmp & TRANS_DDI_FUNC_ENABLE) {
9367 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
9368 case TRANS_DDI_EDP_INPUT_A_ON:
9369 case TRANS_DDI_EDP_INPUT_A_ONOFF:
9372 case TRANS_DDI_EDP_INPUT_B_ONOFF:
9375 case TRANS_DDI_EDP_INPUT_C_ONOFF:
9379 /* A bogus value has been programmed, disable
9381 WARN(1, "Bogus eDP source %08x\n", tmp);
9382 intel_ddi_disable_transcoder_func(dev_priv,
9387 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
9388 crtc->config.cpu_transcoder = TRANSCODER_EDP;
9390 DRM_DEBUG_KMS("Pipe %c using transcoder EDP\n",
9396 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9398 enum transcoder tmp = crtc->config.cpu_transcoder;
9399 memset(&crtc->config, 0, sizeof(crtc->config));
9400 crtc->config.cpu_transcoder = tmp;
9402 crtc->active = dev_priv->display.get_pipe_config(crtc,
9405 crtc->base.enabled = crtc->active;
9407 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
9409 crtc->active ? "enabled" : "disabled");
9413 intel_ddi_setup_hw_pll_state(dev);
9415 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9419 if (encoder->get_hw_state(encoder, &pipe)) {
9420 encoder->base.crtc =
9421 dev_priv->pipe_to_crtc_mapping[pipe];
9423 encoder->base.crtc = NULL;
9426 encoder->connectors_active = false;
9427 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
9428 encoder->base.base.id,
9429 drm_get_encoder_name(&encoder->base),
9430 encoder->base.crtc ? "enabled" : "disabled",
9434 list_for_each_entry(connector, &dev->mode_config.connector_list,
9436 if (connector->get_hw_state(connector)) {
9437 connector->base.dpms = DRM_MODE_DPMS_ON;
9438 connector->encoder->connectors_active = true;
9439 connector->base.encoder = &connector->encoder->base;
9441 connector->base.dpms = DRM_MODE_DPMS_OFF;
9442 connector->base.encoder = NULL;
9444 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
9445 connector->base.base.id,
9446 drm_get_connector_name(&connector->base),
9447 connector->base.encoder ? "enabled" : "disabled");
9450 /* HW state is read out, now we need to sanitize this mess. */
9451 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9453 intel_sanitize_encoder(encoder);
9456 for_each_pipe(pipe) {
9457 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
9458 intel_sanitize_crtc(crtc);
9461 if (force_restore) {
9463 * We need to use raw interfaces for restoring state to avoid
9464 * checking (bogus) intermediate states.
9466 for_each_pipe(pipe) {
9467 struct drm_crtc *crtc =
9468 dev_priv->pipe_to_crtc_mapping[pipe];
9470 __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
9473 list_for_each_entry(plane, &dev->mode_config.plane_list, head)
9474 intel_plane_restore(plane);
9476 i915_redisable_vga(dev);
9478 intel_modeset_update_staged_output_state(dev);
9481 intel_modeset_check_state(dev);
9483 drm_mode_config_reset(dev);
9486 void intel_modeset_gem_init(struct drm_device *dev)
9488 intel_modeset_init_hw(dev);
9490 intel_setup_overlay(dev);
9492 intel_modeset_setup_hw_state(dev, false);
9495 void intel_modeset_cleanup(struct drm_device *dev)
9497 struct drm_i915_private *dev_priv = dev->dev_private;
9498 struct drm_crtc *crtc;
9499 struct intel_crtc *intel_crtc;
9502 * Interrupts and polling as the first thing to avoid creating havoc.
9503 * Too much stuff here (turning of rps, connectors, ...) would
9504 * experience fancy races otherwise.
9506 drm_irq_uninstall(dev);
9507 cancel_work_sync(&dev_priv->hotplug_work);
9509 * Due to the hpd irq storm handling the hotplug work can re-arm the
9510 * poll handlers. Hence disable polling after hpd handling is shut down.
9512 drm_kms_helper_poll_fini(dev);
9514 mutex_lock(&dev->struct_mutex);
9516 intel_unregister_dsm_handler();
9518 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
9519 /* Skip inactive CRTCs */
9523 intel_crtc = to_intel_crtc(crtc);
9524 intel_increase_pllclock(crtc);
9527 intel_disable_fbc(dev);
9529 intel_disable_gt_powersave(dev);
9531 ironlake_teardown_rc6(dev);
9533 mutex_unlock(&dev->struct_mutex);
9535 /* flush any delayed tasks or pending work */
9536 flush_scheduled_work();
9538 /* destroy backlight, if any, before the connectors */
9539 intel_panel_destroy_backlight(dev);
9541 drm_mode_config_cleanup(dev);
9543 intel_cleanup_overlay(dev);
9547 * Return which encoder is currently attached for connector.
9549 struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
9551 return &intel_attached_encoder(connector)->base;
9554 void intel_connector_attach_encoder(struct intel_connector *connector,
9555 struct intel_encoder *encoder)
9557 connector->encoder = encoder;
9558 drm_mode_connector_attach_encoder(&connector->base,
9563 * set vga decode state - true == enable VGA decode
9565 int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
9567 struct drm_i915_private *dev_priv = dev->dev_private;
9570 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
9572 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
9574 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
9575 pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
9579 #ifdef CONFIG_DEBUG_FS
9580 #include <linux/seq_file.h>
9582 struct intel_display_error_state {
9583 struct intel_cursor_error_state {
9588 } cursor[I915_MAX_PIPES];
9590 struct intel_pipe_error_state {
9600 } pipe[I915_MAX_PIPES];
9602 struct intel_plane_error_state {
9610 } plane[I915_MAX_PIPES];
9613 struct intel_display_error_state *
9614 intel_display_capture_error_state(struct drm_device *dev)
9616 drm_i915_private_t *dev_priv = dev->dev_private;
9617 struct intel_display_error_state *error;
9618 enum transcoder cpu_transcoder;
9621 error = kmalloc(sizeof(*error), GFP_ATOMIC);
9626 cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, i);
9628 if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
9629 error->cursor[i].control = I915_READ(CURCNTR(i));
9630 error->cursor[i].position = I915_READ(CURPOS(i));
9631 error->cursor[i].base = I915_READ(CURBASE(i));
9633 error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
9634 error->cursor[i].position = I915_READ(CURPOS_IVB(i));
9635 error->cursor[i].base = I915_READ(CURBASE_IVB(i));
9638 error->plane[i].control = I915_READ(DSPCNTR(i));
9639 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
9640 if (INTEL_INFO(dev)->gen <= 3) {
9641 error->plane[i].size = I915_READ(DSPSIZE(i));
9642 error->plane[i].pos = I915_READ(DSPPOS(i));
9644 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
9645 error->plane[i].addr = I915_READ(DSPADDR(i));
9646 if (INTEL_INFO(dev)->gen >= 4) {
9647 error->plane[i].surface = I915_READ(DSPSURF(i));
9648 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
9651 error->pipe[i].conf = I915_READ(PIPECONF(cpu_transcoder));
9652 error->pipe[i].source = I915_READ(PIPESRC(i));
9653 error->pipe[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
9654 error->pipe[i].hblank = I915_READ(HBLANK(cpu_transcoder));
9655 error->pipe[i].hsync = I915_READ(HSYNC(cpu_transcoder));
9656 error->pipe[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
9657 error->pipe[i].vblank = I915_READ(VBLANK(cpu_transcoder));
9658 error->pipe[i].vsync = I915_READ(VSYNC(cpu_transcoder));
9665 intel_display_print_error_state(struct seq_file *m,
9666 struct drm_device *dev,
9667 struct intel_display_error_state *error)
9671 seq_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
9673 seq_printf(m, "Pipe [%d]:\n", i);
9674 seq_printf(m, " CONF: %08x\n", error->pipe[i].conf);
9675 seq_printf(m, " SRC: %08x\n", error->pipe[i].source);
9676 seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal);
9677 seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank);
9678 seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync);
9679 seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal);
9680 seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank);
9681 seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync);
9683 seq_printf(m, "Plane [%d]:\n", i);
9684 seq_printf(m, " CNTR: %08x\n", error->plane[i].control);
9685 seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
9686 if (INTEL_INFO(dev)->gen <= 3) {
9687 seq_printf(m, " SIZE: %08x\n", error->plane[i].size);
9688 seq_printf(m, " POS: %08x\n", error->plane[i].pos);
9690 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
9691 seq_printf(m, " ADDR: %08x\n", error->plane[i].addr);
9692 if (INTEL_INFO(dev)->gen >= 4) {
9693 seq_printf(m, " SURF: %08x\n", error->plane[i].surface);
9694 seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
9697 seq_printf(m, "Cursor [%d]:\n", i);
9698 seq_printf(m, " CNTR: %08x\n", error->cursor[i].control);
9699 seq_printf(m, " POS: %08x\n", error->cursor[i].position);
9700 seq_printf(m, " BASE: %08x\n", error->cursor[i].base);