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 static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
387 struct drm_device *dev = crtc->dev;
388 const intel_limit_t *limit;
390 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
391 if (intel_is_dual_link_lvds(dev)) {
392 if (refclk == 100000)
393 limit = &intel_limits_ironlake_dual_lvds_100m;
395 limit = &intel_limits_ironlake_dual_lvds;
397 if (refclk == 100000)
398 limit = &intel_limits_ironlake_single_lvds_100m;
400 limit = &intel_limits_ironlake_single_lvds;
403 limit = &intel_limits_ironlake_dac;
408 static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
410 struct drm_device *dev = crtc->dev;
411 const intel_limit_t *limit;
413 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
414 if (intel_is_dual_link_lvds(dev))
415 limit = &intel_limits_g4x_dual_channel_lvds;
417 limit = &intel_limits_g4x_single_channel_lvds;
418 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
419 intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
420 limit = &intel_limits_g4x_hdmi;
421 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
422 limit = &intel_limits_g4x_sdvo;
423 } else /* The option is for other outputs */
424 limit = &intel_limits_i9xx_sdvo;
429 static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
431 struct drm_device *dev = crtc->dev;
432 const intel_limit_t *limit;
434 if (HAS_PCH_SPLIT(dev))
435 limit = intel_ironlake_limit(crtc, refclk);
436 else if (IS_G4X(dev)) {
437 limit = intel_g4x_limit(crtc);
438 } else if (IS_PINEVIEW(dev)) {
439 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
440 limit = &intel_limits_pineview_lvds;
442 limit = &intel_limits_pineview_sdvo;
443 } else if (IS_VALLEYVIEW(dev)) {
444 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG))
445 limit = &intel_limits_vlv_dac;
446 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI))
447 limit = &intel_limits_vlv_hdmi;
449 limit = &intel_limits_vlv_dp;
450 } else if (!IS_GEN2(dev)) {
451 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
452 limit = &intel_limits_i9xx_lvds;
454 limit = &intel_limits_i9xx_sdvo;
456 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
457 limit = &intel_limits_i8xx_lvds;
459 limit = &intel_limits_i8xx_dvo;
464 /* m1 is reserved as 0 in Pineview, n is a ring counter */
465 static void pineview_clock(int refclk, intel_clock_t *clock)
467 clock->m = clock->m2 + 2;
468 clock->p = clock->p1 * clock->p2;
469 clock->vco = refclk * clock->m / clock->n;
470 clock->dot = clock->vco / clock->p;
473 static uint32_t i9xx_dpll_compute_m(struct dpll *dpll)
475 return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
478 static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock)
480 if (IS_PINEVIEW(dev)) {
481 pineview_clock(refclk, clock);
484 clock->m = i9xx_dpll_compute_m(clock);
485 clock->p = clock->p1 * clock->p2;
486 clock->vco = refclk * clock->m / (clock->n + 2);
487 clock->dot = clock->vco / clock->p;
491 * Returns whether any output on the specified pipe is of the specified type
493 bool intel_pipe_has_type(struct drm_crtc *crtc, int type)
495 struct drm_device *dev = crtc->dev;
496 struct intel_encoder *encoder;
498 for_each_encoder_on_crtc(dev, crtc, encoder)
499 if (encoder->type == type)
505 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
507 * Returns whether the given set of divisors are valid for a given refclk with
508 * the given connectors.
511 static bool intel_PLL_is_valid(struct drm_device *dev,
512 const intel_limit_t *limit,
513 const intel_clock_t *clock)
515 if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
516 INTELPllInvalid("p1 out of range\n");
517 if (clock->p < limit->p.min || limit->p.max < clock->p)
518 INTELPllInvalid("p out of range\n");
519 if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
520 INTELPllInvalid("m2 out of range\n");
521 if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
522 INTELPllInvalid("m1 out of range\n");
523 if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev))
524 INTELPllInvalid("m1 <= m2\n");
525 if (clock->m < limit->m.min || limit->m.max < clock->m)
526 INTELPllInvalid("m out of range\n");
527 if (clock->n < limit->n.min || limit->n.max < clock->n)
528 INTELPllInvalid("n out of range\n");
529 if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
530 INTELPllInvalid("vco out of range\n");
531 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
532 * connector, etc., rather than just a single range.
534 if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
535 INTELPllInvalid("dot out of range\n");
541 intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
542 int target, int refclk, intel_clock_t *match_clock,
543 intel_clock_t *best_clock)
546 struct drm_device *dev = crtc->dev;
550 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
552 * For LVDS just rely on its current settings for dual-channel.
553 * We haven't figured out how to reliably set up different
554 * single/dual channel state, if we even can.
556 if (intel_is_dual_link_lvds(dev))
557 clock.p2 = limit->p2.p2_fast;
559 clock.p2 = limit->p2.p2_slow;
561 if (target < limit->p2.dot_limit)
562 clock.p2 = limit->p2.p2_slow;
564 clock.p2 = limit->p2.p2_fast;
567 memset(best_clock, 0, sizeof(*best_clock));
569 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
571 for (clock.m2 = limit->m2.min;
572 clock.m2 <= limit->m2.max; clock.m2++) {
573 /* m1 is always 0 in Pineview */
574 if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev))
576 for (clock.n = limit->n.min;
577 clock.n <= limit->n.max; clock.n++) {
578 for (clock.p1 = limit->p1.min;
579 clock.p1 <= limit->p1.max; clock.p1++) {
582 intel_clock(dev, refclk, &clock);
583 if (!intel_PLL_is_valid(dev, limit,
587 clock.p != match_clock->p)
590 this_err = abs(clock.dot - target);
591 if (this_err < err) {
600 return (err != target);
604 intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
605 int target, int refclk, intel_clock_t *match_clock,
606 intel_clock_t *best_clock)
608 struct drm_device *dev = crtc->dev;
612 /* approximately equals target * 0.00585 */
613 int err_most = (target >> 8) + (target >> 9);
616 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
617 if (intel_is_dual_link_lvds(dev))
618 clock.p2 = limit->p2.p2_fast;
620 clock.p2 = limit->p2.p2_slow;
622 if (target < limit->p2.dot_limit)
623 clock.p2 = limit->p2.p2_slow;
625 clock.p2 = limit->p2.p2_fast;
628 memset(best_clock, 0, sizeof(*best_clock));
629 max_n = limit->n.max;
630 /* based on hardware requirement, prefer smaller n to precision */
631 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
632 /* based on hardware requirement, prefere larger m1,m2 */
633 for (clock.m1 = limit->m1.max;
634 clock.m1 >= limit->m1.min; clock.m1--) {
635 for (clock.m2 = limit->m2.max;
636 clock.m2 >= limit->m2.min; clock.m2--) {
637 for (clock.p1 = limit->p1.max;
638 clock.p1 >= limit->p1.min; clock.p1--) {
641 intel_clock(dev, refclk, &clock);
642 if (!intel_PLL_is_valid(dev, limit,
646 this_err = abs(clock.dot - target);
647 if (this_err < err_most) {
661 intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc,
662 int target, int refclk, intel_clock_t *match_clock,
663 intel_clock_t *best_clock)
665 u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2;
667 u32 updrate, minupdate, fracbits, p;
668 unsigned long bestppm, ppm, absppm;
672 dotclk = target * 1000;
675 fastclk = dotclk / (2*100);
679 n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0;
680 bestm1 = bestm2 = bestp1 = bestp2 = 0;
682 /* based on hardware requirement, prefer smaller n to precision */
683 for (n = limit->n.min; n <= ((refclk) / minupdate); n++) {
684 updrate = refclk / n;
685 for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) {
686 for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) {
690 /* based on hardware requirement, prefer bigger m1,m2 values */
691 for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) {
692 m2 = (((2*(fastclk * p * n / m1 )) +
693 refclk) / (2*refclk));
696 if (vco >= limit->vco.min && vco < limit->vco.max) {
697 ppm = 1000000 * ((vco / p) - fastclk) / fastclk;
698 absppm = (ppm > 0) ? ppm : (-ppm);
699 if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) {
703 if (absppm < bestppm - 10) {
720 best_clock->n = bestn;
721 best_clock->m1 = bestm1;
722 best_clock->m2 = bestm2;
723 best_clock->p1 = bestp1;
724 best_clock->p2 = bestp2;
729 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
732 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
733 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
735 return intel_crtc->config.cpu_transcoder;
738 static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe)
740 struct drm_i915_private *dev_priv = dev->dev_private;
741 u32 frame, frame_reg = PIPEFRAME(pipe);
743 frame = I915_READ(frame_reg);
745 if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50))
746 DRM_DEBUG_KMS("vblank wait timed out\n");
750 * intel_wait_for_vblank - wait for vblank on a given pipe
752 * @pipe: pipe to wait for
754 * Wait for vblank to occur on a given pipe. Needed for various bits of
757 void intel_wait_for_vblank(struct drm_device *dev, int pipe)
759 struct drm_i915_private *dev_priv = dev->dev_private;
760 int pipestat_reg = PIPESTAT(pipe);
762 if (INTEL_INFO(dev)->gen >= 5) {
763 ironlake_wait_for_vblank(dev, pipe);
767 /* Clear existing vblank status. Note this will clear any other
768 * sticky status fields as well.
770 * This races with i915_driver_irq_handler() with the result
771 * that either function could miss a vblank event. Here it is not
772 * fatal, as we will either wait upon the next vblank interrupt or
773 * timeout. Generally speaking intel_wait_for_vblank() is only
774 * called during modeset at which time the GPU should be idle and
775 * should *not* be performing page flips and thus not waiting on
777 * Currently, the result of us stealing a vblank from the irq
778 * handler is that a single frame will be skipped during swapbuffers.
780 I915_WRITE(pipestat_reg,
781 I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS);
783 /* Wait for vblank interrupt bit to set */
784 if (wait_for(I915_READ(pipestat_reg) &
785 PIPE_VBLANK_INTERRUPT_STATUS,
787 DRM_DEBUG_KMS("vblank wait timed out\n");
791 * intel_wait_for_pipe_off - wait for pipe to turn off
793 * @pipe: pipe to wait for
795 * After disabling a pipe, we can't wait for vblank in the usual way,
796 * spinning on the vblank interrupt status bit, since we won't actually
797 * see an interrupt when the pipe is disabled.
800 * wait for the pipe register state bit to turn off
803 * wait for the display line value to settle (it usually
804 * ends up stopping at the start of the next frame).
807 void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
809 struct drm_i915_private *dev_priv = dev->dev_private;
810 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
813 if (INTEL_INFO(dev)->gen >= 4) {
814 int reg = PIPECONF(cpu_transcoder);
816 /* Wait for the Pipe State to go off */
817 if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0,
819 WARN(1, "pipe_off wait timed out\n");
821 u32 last_line, line_mask;
822 int reg = PIPEDSL(pipe);
823 unsigned long timeout = jiffies + msecs_to_jiffies(100);
826 line_mask = DSL_LINEMASK_GEN2;
828 line_mask = DSL_LINEMASK_GEN3;
830 /* Wait for the display line to settle */
832 last_line = I915_READ(reg) & line_mask;
834 } while (((I915_READ(reg) & line_mask) != last_line) &&
835 time_after(timeout, jiffies));
836 if (time_after(jiffies, timeout))
837 WARN(1, "pipe_off wait timed out\n");
842 * ibx_digital_port_connected - is the specified port connected?
843 * @dev_priv: i915 private structure
844 * @port: the port to test
846 * Returns true if @port is connected, false otherwise.
848 bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
849 struct intel_digital_port *port)
853 if (HAS_PCH_IBX(dev_priv->dev)) {
856 bit = SDE_PORTB_HOTPLUG;
859 bit = SDE_PORTC_HOTPLUG;
862 bit = SDE_PORTD_HOTPLUG;
870 bit = SDE_PORTB_HOTPLUG_CPT;
873 bit = SDE_PORTC_HOTPLUG_CPT;
876 bit = SDE_PORTD_HOTPLUG_CPT;
883 return I915_READ(SDEISR) & bit;
886 static const char *state_string(bool enabled)
888 return enabled ? "on" : "off";
891 /* Only for pre-ILK configs */
892 static void assert_pll(struct drm_i915_private *dev_priv,
893 enum pipe pipe, bool state)
900 val = I915_READ(reg);
901 cur_state = !!(val & DPLL_VCO_ENABLE);
902 WARN(cur_state != state,
903 "PLL state assertion failure (expected %s, current %s)\n",
904 state_string(state), state_string(cur_state));
906 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
907 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
910 static void assert_pch_pll(struct drm_i915_private *dev_priv,
911 struct intel_pch_pll *pll,
912 struct intel_crtc *crtc,
918 if (HAS_PCH_LPT(dev_priv->dev)) {
919 DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
924 "asserting PCH PLL %s with no PLL\n", state_string(state)))
927 val = I915_READ(pll->pll_reg);
928 cur_state = !!(val & DPLL_VCO_ENABLE);
929 WARN(cur_state != state,
930 "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n",
931 pll->pll_reg, state_string(state), state_string(cur_state), val);
933 /* Make sure the selected PLL is correctly attached to the transcoder */
934 if (crtc && HAS_PCH_CPT(dev_priv->dev)) {
937 pch_dpll = I915_READ(PCH_DPLL_SEL);
938 cur_state = pll->pll_reg == _PCH_DPLL_B;
939 if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state,
940 "PLL[%d] not attached to this transcoder %c: %08x\n",
941 cur_state, pipe_name(crtc->pipe), pch_dpll)) {
942 cur_state = !!(val >> (4*crtc->pipe + 3));
943 WARN(cur_state != state,
944 "PLL[%d] not %s on this transcoder %c: %08x\n",
945 pll->pll_reg == _PCH_DPLL_B,
947 pipe_name(crtc->pipe),
952 #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true)
953 #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false)
955 static void assert_fdi_tx(struct drm_i915_private *dev_priv,
956 enum pipe pipe, bool state)
961 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
964 if (HAS_DDI(dev_priv->dev)) {
965 /* DDI does not have a specific FDI_TX register */
966 reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
967 val = I915_READ(reg);
968 cur_state = !!(val & TRANS_DDI_FUNC_ENABLE);
970 reg = FDI_TX_CTL(pipe);
971 val = I915_READ(reg);
972 cur_state = !!(val & FDI_TX_ENABLE);
974 WARN(cur_state != state,
975 "FDI TX state assertion failure (expected %s, current %s)\n",
976 state_string(state), state_string(cur_state));
978 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
979 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
981 static void assert_fdi_rx(struct drm_i915_private *dev_priv,
982 enum pipe pipe, bool state)
988 reg = FDI_RX_CTL(pipe);
989 val = I915_READ(reg);
990 cur_state = !!(val & FDI_RX_ENABLE);
991 WARN(cur_state != state,
992 "FDI RX state assertion failure (expected %s, current %s)\n",
993 state_string(state), state_string(cur_state));
995 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
996 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
998 static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
1004 /* ILK FDI PLL is always enabled */
1005 if (dev_priv->info->gen == 5)
1008 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1009 if (HAS_DDI(dev_priv->dev))
1012 reg = FDI_TX_CTL(pipe);
1013 val = I915_READ(reg);
1014 WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n");
1017 static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv,
1023 reg = FDI_RX_CTL(pipe);
1024 val = I915_READ(reg);
1025 WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n");
1028 static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1031 int pp_reg, lvds_reg;
1033 enum pipe panel_pipe = PIPE_A;
1036 if (HAS_PCH_SPLIT(dev_priv->dev)) {
1037 pp_reg = PCH_PP_CONTROL;
1038 lvds_reg = PCH_LVDS;
1040 pp_reg = PP_CONTROL;
1044 val = I915_READ(pp_reg);
1045 if (!(val & PANEL_POWER_ON) ||
1046 ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS))
1049 if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT)
1050 panel_pipe = PIPE_B;
1052 WARN(panel_pipe == pipe && locked,
1053 "panel assertion failure, pipe %c regs locked\n",
1057 void assert_pipe(struct drm_i915_private *dev_priv,
1058 enum pipe pipe, bool state)
1063 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1066 /* if we need the pipe A quirk it must be always on */
1067 if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
1070 if (!intel_display_power_enabled(dev_priv->dev,
1071 POWER_DOMAIN_TRANSCODER(cpu_transcoder))) {
1074 reg = PIPECONF(cpu_transcoder);
1075 val = I915_READ(reg);
1076 cur_state = !!(val & PIPECONF_ENABLE);
1079 WARN(cur_state != state,
1080 "pipe %c assertion failure (expected %s, current %s)\n",
1081 pipe_name(pipe), state_string(state), state_string(cur_state));
1084 static void assert_plane(struct drm_i915_private *dev_priv,
1085 enum plane plane, bool state)
1091 reg = DSPCNTR(plane);
1092 val = I915_READ(reg);
1093 cur_state = !!(val & DISPLAY_PLANE_ENABLE);
1094 WARN(cur_state != state,
1095 "plane %c assertion failure (expected %s, current %s)\n",
1096 plane_name(plane), state_string(state), state_string(cur_state));
1099 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1100 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1102 static void assert_planes_disabled(struct drm_i915_private *dev_priv,
1109 /* Planes are fixed to pipes on ILK+ */
1110 if (HAS_PCH_SPLIT(dev_priv->dev) || IS_VALLEYVIEW(dev_priv->dev)) {
1111 reg = DSPCNTR(pipe);
1112 val = I915_READ(reg);
1113 WARN((val & DISPLAY_PLANE_ENABLE),
1114 "plane %c assertion failure, should be disabled but not\n",
1119 /* Need to check both planes against the pipe */
1120 for (i = 0; i < 2; i++) {
1122 val = I915_READ(reg);
1123 cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >>
1124 DISPPLANE_SEL_PIPE_SHIFT;
1125 WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe,
1126 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1127 plane_name(i), pipe_name(pipe));
1131 static void assert_sprites_disabled(struct drm_i915_private *dev_priv,
1137 if (!IS_VALLEYVIEW(dev_priv->dev))
1140 /* Need to check both planes against the pipe */
1141 for (i = 0; i < dev_priv->num_plane; i++) {
1142 reg = SPCNTR(pipe, i);
1143 val = I915_READ(reg);
1144 WARN((val & SP_ENABLE),
1145 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1146 sprite_name(pipe, i), pipe_name(pipe));
1150 static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
1155 if (HAS_PCH_LPT(dev_priv->dev)) {
1156 DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n");
1160 val = I915_READ(PCH_DREF_CONTROL);
1161 enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK |
1162 DREF_SUPERSPREAD_SOURCE_MASK));
1163 WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n");
1166 static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1173 reg = PCH_TRANSCONF(pipe);
1174 val = I915_READ(reg);
1175 enabled = !!(val & TRANS_ENABLE);
1177 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1181 static bool dp_pipe_enabled(struct drm_i915_private *dev_priv,
1182 enum pipe pipe, u32 port_sel, u32 val)
1184 if ((val & DP_PORT_EN) == 0)
1187 if (HAS_PCH_CPT(dev_priv->dev)) {
1188 u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe);
1189 u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg);
1190 if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel)
1193 if ((val & DP_PIPE_MASK) != (pipe << 30))
1199 static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
1200 enum pipe pipe, u32 val)
1202 if ((val & SDVO_ENABLE) == 0)
1205 if (HAS_PCH_CPT(dev_priv->dev)) {
1206 if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe))
1209 if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe))
1215 static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
1216 enum pipe pipe, u32 val)
1218 if ((val & LVDS_PORT_EN) == 0)
1221 if (HAS_PCH_CPT(dev_priv->dev)) {
1222 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1225 if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
1231 static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
1232 enum pipe pipe, u32 val)
1234 if ((val & ADPA_DAC_ENABLE) == 0)
1236 if (HAS_PCH_CPT(dev_priv->dev)) {
1237 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1240 if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
1246 static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
1247 enum pipe pipe, int reg, u32 port_sel)
1249 u32 val = I915_READ(reg);
1250 WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val),
1251 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1252 reg, pipe_name(pipe));
1254 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0
1255 && (val & DP_PIPEB_SELECT),
1256 "IBX PCH dp port still using transcoder B\n");
1259 static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
1260 enum pipe pipe, int reg)
1262 u32 val = I915_READ(reg);
1263 WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
1264 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1265 reg, pipe_name(pipe));
1267 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0
1268 && (val & SDVO_PIPE_B_SELECT),
1269 "IBX PCH hdmi port still using transcoder B\n");
1272 static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
1278 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B);
1279 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
1280 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
1283 val = I915_READ(reg);
1284 WARN(adpa_pipe_enabled(dev_priv, pipe, val),
1285 "PCH VGA enabled on transcoder %c, should be disabled\n",
1289 val = I915_READ(reg);
1290 WARN(lvds_pipe_enabled(dev_priv, pipe, val),
1291 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1294 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB);
1295 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC);
1296 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID);
1300 * intel_enable_pll - enable a PLL
1301 * @dev_priv: i915 private structure
1302 * @pipe: pipe PLL to enable
1304 * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to
1305 * make sure the PLL reg is writable first though, since the panel write
1306 * protect mechanism may be enabled.
1308 * Note! This is for pre-ILK only.
1310 * Unfortunately needed by dvo_ns2501 since the dvo depends on it running.
1312 static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1317 assert_pipe_disabled(dev_priv, pipe);
1319 /* No really, not for ILK+ */
1320 BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5);
1322 /* PLL is protected by panel, make sure we can write it */
1323 if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev))
1324 assert_panel_unlocked(dev_priv, pipe);
1327 val = I915_READ(reg);
1328 val |= DPLL_VCO_ENABLE;
1330 /* We do this three times for luck */
1331 I915_WRITE(reg, val);
1333 udelay(150); /* wait for warmup */
1334 I915_WRITE(reg, val);
1336 udelay(150); /* wait for warmup */
1337 I915_WRITE(reg, val);
1339 udelay(150); /* wait for warmup */
1343 * intel_disable_pll - disable a PLL
1344 * @dev_priv: i915 private structure
1345 * @pipe: pipe PLL to disable
1347 * Disable the PLL for @pipe, making sure the pipe is off first.
1349 * Note! This is for pre-ILK only.
1351 static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1356 /* Don't disable pipe A or pipe A PLLs if needed */
1357 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1360 /* Make sure the pipe isn't still relying on us */
1361 assert_pipe_disabled(dev_priv, pipe);
1364 val = I915_READ(reg);
1365 val &= ~DPLL_VCO_ENABLE;
1366 I915_WRITE(reg, val);
1370 void vlv_wait_port_ready(struct drm_i915_private *dev_priv, int port)
1375 port_mask = DPLL_PORTB_READY_MASK;
1377 port_mask = DPLL_PORTC_READY_MASK;
1379 if (wait_for((I915_READ(DPLL(0)) & port_mask) == 0, 1000))
1380 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1381 'B' + port, I915_READ(DPLL(0)));
1385 * ironlake_enable_pch_pll - enable PCH PLL
1386 * @dev_priv: i915 private structure
1387 * @pipe: pipe PLL to enable
1389 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1390 * drives the transcoder clock.
1392 static void ironlake_enable_pch_pll(struct intel_crtc *intel_crtc)
1394 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
1395 struct intel_pch_pll *pll;
1399 /* PCH PLLs only available on ILK, SNB and IVB */
1400 BUG_ON(dev_priv->info->gen < 5);
1401 pll = intel_crtc->pch_pll;
1405 if (WARN_ON(pll->refcount == 0))
1408 DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n",
1409 pll->pll_reg, pll->active, pll->on,
1410 intel_crtc->base.base.id);
1412 /* PCH refclock must be enabled first */
1413 assert_pch_refclk_enabled(dev_priv);
1415 if (pll->active++ && pll->on) {
1416 assert_pch_pll_enabled(dev_priv, pll, NULL);
1420 DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg);
1423 val = I915_READ(reg);
1424 val |= DPLL_VCO_ENABLE;
1425 I915_WRITE(reg, val);
1432 static void intel_disable_pch_pll(struct intel_crtc *intel_crtc)
1434 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
1435 struct intel_pch_pll *pll = intel_crtc->pch_pll;
1439 /* PCH only available on ILK+ */
1440 BUG_ON(dev_priv->info->gen < 5);
1444 if (WARN_ON(pll->refcount == 0))
1447 DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n",
1448 pll->pll_reg, pll->active, pll->on,
1449 intel_crtc->base.base.id);
1451 if (WARN_ON(pll->active == 0)) {
1452 assert_pch_pll_disabled(dev_priv, pll, NULL);
1456 if (--pll->active) {
1457 assert_pch_pll_enabled(dev_priv, pll, NULL);
1461 DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg);
1463 /* Make sure transcoder isn't still depending on us */
1464 assert_pch_transcoder_disabled(dev_priv, intel_crtc->pipe);
1467 val = I915_READ(reg);
1468 val &= ~DPLL_VCO_ENABLE;
1469 I915_WRITE(reg, val);
1476 static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1479 struct drm_device *dev = dev_priv->dev;
1480 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
1481 uint32_t reg, val, pipeconf_val;
1483 /* PCH only available on ILK+ */
1484 BUG_ON(dev_priv->info->gen < 5);
1486 /* Make sure PCH DPLL is enabled */
1487 assert_pch_pll_enabled(dev_priv,
1488 to_intel_crtc(crtc)->pch_pll,
1489 to_intel_crtc(crtc));
1491 /* FDI must be feeding us bits for PCH ports */
1492 assert_fdi_tx_enabled(dev_priv, pipe);
1493 assert_fdi_rx_enabled(dev_priv, pipe);
1495 if (HAS_PCH_CPT(dev)) {
1496 /* Workaround: Set the timing override bit before enabling the
1497 * pch transcoder. */
1498 reg = TRANS_CHICKEN2(pipe);
1499 val = I915_READ(reg);
1500 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1501 I915_WRITE(reg, val);
1504 reg = PCH_TRANSCONF(pipe);
1505 val = I915_READ(reg);
1506 pipeconf_val = I915_READ(PIPECONF(pipe));
1508 if (HAS_PCH_IBX(dev_priv->dev)) {
1510 * make the BPC in transcoder be consistent with
1511 * that in pipeconf reg.
1513 val &= ~PIPECONF_BPC_MASK;
1514 val |= pipeconf_val & PIPECONF_BPC_MASK;
1517 val &= ~TRANS_INTERLACE_MASK;
1518 if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
1519 if (HAS_PCH_IBX(dev_priv->dev) &&
1520 intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO))
1521 val |= TRANS_LEGACY_INTERLACED_ILK;
1523 val |= TRANS_INTERLACED;
1525 val |= TRANS_PROGRESSIVE;
1527 I915_WRITE(reg, val | TRANS_ENABLE);
1528 if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
1529 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe));
1532 static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1533 enum transcoder cpu_transcoder)
1535 u32 val, pipeconf_val;
1537 /* PCH only available on ILK+ */
1538 BUG_ON(dev_priv->info->gen < 5);
1540 /* FDI must be feeding us bits for PCH ports */
1541 assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
1542 assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
1544 /* Workaround: set timing override bit. */
1545 val = I915_READ(_TRANSA_CHICKEN2);
1546 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1547 I915_WRITE(_TRANSA_CHICKEN2, val);
1550 pipeconf_val = I915_READ(PIPECONF(cpu_transcoder));
1552 if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) ==
1553 PIPECONF_INTERLACED_ILK)
1554 val |= TRANS_INTERLACED;
1556 val |= TRANS_PROGRESSIVE;
1558 I915_WRITE(LPT_TRANSCONF, val);
1559 if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100))
1560 DRM_ERROR("Failed to enable PCH transcoder\n");
1563 static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
1566 struct drm_device *dev = dev_priv->dev;
1569 /* FDI relies on the transcoder */
1570 assert_fdi_tx_disabled(dev_priv, pipe);
1571 assert_fdi_rx_disabled(dev_priv, pipe);
1573 /* Ports must be off as well */
1574 assert_pch_ports_disabled(dev_priv, pipe);
1576 reg = PCH_TRANSCONF(pipe);
1577 val = I915_READ(reg);
1578 val &= ~TRANS_ENABLE;
1579 I915_WRITE(reg, val);
1580 /* wait for PCH transcoder off, transcoder state */
1581 if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
1582 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe));
1584 if (!HAS_PCH_IBX(dev)) {
1585 /* Workaround: Clear the timing override chicken bit again. */
1586 reg = TRANS_CHICKEN2(pipe);
1587 val = I915_READ(reg);
1588 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1589 I915_WRITE(reg, val);
1593 static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
1597 val = I915_READ(LPT_TRANSCONF);
1598 val &= ~TRANS_ENABLE;
1599 I915_WRITE(LPT_TRANSCONF, val);
1600 /* wait for PCH transcoder off, transcoder state */
1601 if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50))
1602 DRM_ERROR("Failed to disable PCH transcoder\n");
1604 /* Workaround: clear timing override bit. */
1605 val = I915_READ(_TRANSA_CHICKEN2);
1606 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1607 I915_WRITE(_TRANSA_CHICKEN2, val);
1611 * intel_enable_pipe - enable a pipe, asserting requirements
1612 * @dev_priv: i915 private structure
1613 * @pipe: pipe to enable
1614 * @pch_port: on ILK+, is this pipe driving a PCH port or not
1616 * Enable @pipe, making sure that various hardware specific requirements
1617 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1619 * @pipe should be %PIPE_A or %PIPE_B.
1621 * Will wait until the pipe is actually running (i.e. first vblank) before
1624 static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
1627 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1629 enum pipe pch_transcoder;
1633 assert_planes_disabled(dev_priv, pipe);
1634 assert_sprites_disabled(dev_priv, pipe);
1636 if (HAS_PCH_LPT(dev_priv->dev))
1637 pch_transcoder = TRANSCODER_A;
1639 pch_transcoder = pipe;
1642 * A pipe without a PLL won't actually be able to drive bits from
1643 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1646 if (!HAS_PCH_SPLIT(dev_priv->dev))
1647 assert_pll_enabled(dev_priv, pipe);
1650 /* if driving the PCH, we need FDI enabled */
1651 assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
1652 assert_fdi_tx_pll_enabled(dev_priv,
1653 (enum pipe) cpu_transcoder);
1655 /* FIXME: assert CPU port conditions for SNB+ */
1658 reg = PIPECONF(cpu_transcoder);
1659 val = I915_READ(reg);
1660 if (val & PIPECONF_ENABLE)
1663 I915_WRITE(reg, val | PIPECONF_ENABLE);
1664 intel_wait_for_vblank(dev_priv->dev, pipe);
1668 * intel_disable_pipe - disable a pipe, asserting requirements
1669 * @dev_priv: i915 private structure
1670 * @pipe: pipe to disable
1672 * Disable @pipe, making sure that various hardware specific requirements
1673 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1675 * @pipe should be %PIPE_A or %PIPE_B.
1677 * Will wait until the pipe has shut down before returning.
1679 static void intel_disable_pipe(struct drm_i915_private *dev_priv,
1682 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1688 * Make sure planes won't keep trying to pump pixels to us,
1689 * or we might hang the display.
1691 assert_planes_disabled(dev_priv, pipe);
1692 assert_sprites_disabled(dev_priv, pipe);
1694 /* Don't disable pipe A or pipe A PLLs if needed */
1695 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1698 reg = PIPECONF(cpu_transcoder);
1699 val = I915_READ(reg);
1700 if ((val & PIPECONF_ENABLE) == 0)
1703 I915_WRITE(reg, val & ~PIPECONF_ENABLE);
1704 intel_wait_for_pipe_off(dev_priv->dev, pipe);
1708 * Plane regs are double buffered, going from enabled->disabled needs a
1709 * trigger in order to latch. The display address reg provides this.
1711 void intel_flush_display_plane(struct drm_i915_private *dev_priv,
1714 if (dev_priv->info->gen >= 4)
1715 I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane)));
1717 I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane)));
1721 * intel_enable_plane - enable a display plane on a given pipe
1722 * @dev_priv: i915 private structure
1723 * @plane: plane to enable
1724 * @pipe: pipe being fed
1726 * Enable @plane on @pipe, making sure that @pipe is running first.
1728 static void intel_enable_plane(struct drm_i915_private *dev_priv,
1729 enum plane plane, enum pipe pipe)
1734 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1735 assert_pipe_enabled(dev_priv, pipe);
1737 reg = DSPCNTR(plane);
1738 val = I915_READ(reg);
1739 if (val & DISPLAY_PLANE_ENABLE)
1742 I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
1743 intel_flush_display_plane(dev_priv, plane);
1744 intel_wait_for_vblank(dev_priv->dev, pipe);
1748 * intel_disable_plane - disable a display plane
1749 * @dev_priv: i915 private structure
1750 * @plane: plane to disable
1751 * @pipe: pipe consuming the data
1753 * Disable @plane; should be an independent operation.
1755 static void intel_disable_plane(struct drm_i915_private *dev_priv,
1756 enum plane plane, enum pipe pipe)
1761 reg = DSPCNTR(plane);
1762 val = I915_READ(reg);
1763 if ((val & DISPLAY_PLANE_ENABLE) == 0)
1766 I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
1767 intel_flush_display_plane(dev_priv, plane);
1768 intel_wait_for_vblank(dev_priv->dev, pipe);
1771 static bool need_vtd_wa(struct drm_device *dev)
1773 #ifdef CONFIG_INTEL_IOMMU
1774 if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped)
1781 intel_pin_and_fence_fb_obj(struct drm_device *dev,
1782 struct drm_i915_gem_object *obj,
1783 struct intel_ring_buffer *pipelined)
1785 struct drm_i915_private *dev_priv = dev->dev_private;
1789 switch (obj->tiling_mode) {
1790 case I915_TILING_NONE:
1791 if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
1792 alignment = 128 * 1024;
1793 else if (INTEL_INFO(dev)->gen >= 4)
1794 alignment = 4 * 1024;
1796 alignment = 64 * 1024;
1799 /* pin() will align the object as required by fence */
1803 /* Despite that we check this in framebuffer_init userspace can
1804 * screw us over and change the tiling after the fact. Only
1805 * pinned buffers can't change their tiling. */
1806 DRM_DEBUG_DRIVER("Y tiled not allowed for scan out buffers\n");
1812 /* Note that the w/a also requires 64 PTE of padding following the
1813 * bo. We currently fill all unused PTE with the shadow page and so
1814 * we should always have valid PTE following the scanout preventing
1817 if (need_vtd_wa(dev) && alignment < 256 * 1024)
1818 alignment = 256 * 1024;
1820 dev_priv->mm.interruptible = false;
1821 ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
1823 goto err_interruptible;
1825 /* Install a fence for tiled scan-out. Pre-i965 always needs a
1826 * fence, whereas 965+ only requires a fence if using
1827 * framebuffer compression. For simplicity, we always install
1828 * a fence as the cost is not that onerous.
1830 ret = i915_gem_object_get_fence(obj);
1834 i915_gem_object_pin_fence(obj);
1836 dev_priv->mm.interruptible = true;
1840 i915_gem_object_unpin(obj);
1842 dev_priv->mm.interruptible = true;
1846 void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
1848 i915_gem_object_unpin_fence(obj);
1849 i915_gem_object_unpin(obj);
1852 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
1853 * is assumed to be a power-of-two. */
1854 unsigned long intel_gen4_compute_page_offset(int *x, int *y,
1855 unsigned int tiling_mode,
1859 if (tiling_mode != I915_TILING_NONE) {
1860 unsigned int tile_rows, tiles;
1865 tiles = *x / (512/cpp);
1868 return tile_rows * pitch * 8 + tiles * 4096;
1870 unsigned int offset;
1872 offset = *y * pitch + *x * cpp;
1874 *x = (offset & 4095) / cpp;
1875 return offset & -4096;
1879 static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
1882 struct drm_device *dev = crtc->dev;
1883 struct drm_i915_private *dev_priv = dev->dev_private;
1884 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1885 struct intel_framebuffer *intel_fb;
1886 struct drm_i915_gem_object *obj;
1887 int plane = intel_crtc->plane;
1888 unsigned long linear_offset;
1897 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
1901 intel_fb = to_intel_framebuffer(fb);
1902 obj = intel_fb->obj;
1904 reg = DSPCNTR(plane);
1905 dspcntr = I915_READ(reg);
1906 /* Mask out pixel format bits in case we change it */
1907 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
1908 switch (fb->pixel_format) {
1910 dspcntr |= DISPPLANE_8BPP;
1912 case DRM_FORMAT_XRGB1555:
1913 case DRM_FORMAT_ARGB1555:
1914 dspcntr |= DISPPLANE_BGRX555;
1916 case DRM_FORMAT_RGB565:
1917 dspcntr |= DISPPLANE_BGRX565;
1919 case DRM_FORMAT_XRGB8888:
1920 case DRM_FORMAT_ARGB8888:
1921 dspcntr |= DISPPLANE_BGRX888;
1923 case DRM_FORMAT_XBGR8888:
1924 case DRM_FORMAT_ABGR8888:
1925 dspcntr |= DISPPLANE_RGBX888;
1927 case DRM_FORMAT_XRGB2101010:
1928 case DRM_FORMAT_ARGB2101010:
1929 dspcntr |= DISPPLANE_BGRX101010;
1931 case DRM_FORMAT_XBGR2101010:
1932 case DRM_FORMAT_ABGR2101010:
1933 dspcntr |= DISPPLANE_RGBX101010;
1939 if (INTEL_INFO(dev)->gen >= 4) {
1940 if (obj->tiling_mode != I915_TILING_NONE)
1941 dspcntr |= DISPPLANE_TILED;
1943 dspcntr &= ~DISPPLANE_TILED;
1946 I915_WRITE(reg, dspcntr);
1948 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
1950 if (INTEL_INFO(dev)->gen >= 4) {
1951 intel_crtc->dspaddr_offset =
1952 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
1953 fb->bits_per_pixel / 8,
1955 linear_offset -= intel_crtc->dspaddr_offset;
1957 intel_crtc->dspaddr_offset = linear_offset;
1960 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
1961 obj->gtt_offset, linear_offset, x, y, fb->pitches[0]);
1962 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
1963 if (INTEL_INFO(dev)->gen >= 4) {
1964 I915_MODIFY_DISPBASE(DSPSURF(plane),
1965 obj->gtt_offset + intel_crtc->dspaddr_offset);
1966 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
1967 I915_WRITE(DSPLINOFF(plane), linear_offset);
1969 I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset);
1975 static int ironlake_update_plane(struct drm_crtc *crtc,
1976 struct drm_framebuffer *fb, int x, int y)
1978 struct drm_device *dev = crtc->dev;
1979 struct drm_i915_private *dev_priv = dev->dev_private;
1980 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1981 struct intel_framebuffer *intel_fb;
1982 struct drm_i915_gem_object *obj;
1983 int plane = intel_crtc->plane;
1984 unsigned long linear_offset;
1994 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
1998 intel_fb = to_intel_framebuffer(fb);
1999 obj = intel_fb->obj;
2001 reg = DSPCNTR(plane);
2002 dspcntr = I915_READ(reg);
2003 /* Mask out pixel format bits in case we change it */
2004 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2005 switch (fb->pixel_format) {
2007 dspcntr |= DISPPLANE_8BPP;
2009 case DRM_FORMAT_RGB565:
2010 dspcntr |= DISPPLANE_BGRX565;
2012 case DRM_FORMAT_XRGB8888:
2013 case DRM_FORMAT_ARGB8888:
2014 dspcntr |= DISPPLANE_BGRX888;
2016 case DRM_FORMAT_XBGR8888:
2017 case DRM_FORMAT_ABGR8888:
2018 dspcntr |= DISPPLANE_RGBX888;
2020 case DRM_FORMAT_XRGB2101010:
2021 case DRM_FORMAT_ARGB2101010:
2022 dspcntr |= DISPPLANE_BGRX101010;
2024 case DRM_FORMAT_XBGR2101010:
2025 case DRM_FORMAT_ABGR2101010:
2026 dspcntr |= DISPPLANE_RGBX101010;
2032 if (obj->tiling_mode != I915_TILING_NONE)
2033 dspcntr |= DISPPLANE_TILED;
2035 dspcntr &= ~DISPPLANE_TILED;
2038 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2040 I915_WRITE(reg, dspcntr);
2042 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2043 intel_crtc->dspaddr_offset =
2044 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2045 fb->bits_per_pixel / 8,
2047 linear_offset -= intel_crtc->dspaddr_offset;
2049 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2050 obj->gtt_offset, linear_offset, x, y, fb->pitches[0]);
2051 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2052 I915_MODIFY_DISPBASE(DSPSURF(plane),
2053 obj->gtt_offset + intel_crtc->dspaddr_offset);
2054 if (IS_HASWELL(dev)) {
2055 I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
2057 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2058 I915_WRITE(DSPLINOFF(plane), linear_offset);
2065 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2067 intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2068 int x, int y, enum mode_set_atomic state)
2070 struct drm_device *dev = crtc->dev;
2071 struct drm_i915_private *dev_priv = dev->dev_private;
2073 if (dev_priv->display.disable_fbc)
2074 dev_priv->display.disable_fbc(dev);
2075 intel_increase_pllclock(crtc);
2077 return dev_priv->display.update_plane(crtc, fb, x, y);
2080 void intel_display_handle_reset(struct drm_device *dev)
2082 struct drm_i915_private *dev_priv = dev->dev_private;
2083 struct drm_crtc *crtc;
2086 * Flips in the rings have been nuked by the reset,
2087 * so complete all pending flips so that user space
2088 * will get its events and not get stuck.
2090 * Also update the base address of all primary
2091 * planes to the the last fb to make sure we're
2092 * showing the correct fb after a reset.
2094 * Need to make two loops over the crtcs so that we
2095 * don't try to grab a crtc mutex before the
2096 * pending_flip_queue really got woken up.
2099 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2100 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2101 enum plane plane = intel_crtc->plane;
2103 intel_prepare_page_flip(dev, plane);
2104 intel_finish_page_flip_plane(dev, plane);
2107 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2108 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2110 mutex_lock(&crtc->mutex);
2111 if (intel_crtc->active)
2112 dev_priv->display.update_plane(crtc, crtc->fb,
2114 mutex_unlock(&crtc->mutex);
2119 intel_finish_fb(struct drm_framebuffer *old_fb)
2121 struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
2122 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2123 bool was_interruptible = dev_priv->mm.interruptible;
2126 /* Big Hammer, we also need to ensure that any pending
2127 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2128 * current scanout is retired before unpinning the old
2131 * This should only fail upon a hung GPU, in which case we
2132 * can safely continue.
2134 dev_priv->mm.interruptible = false;
2135 ret = i915_gem_object_finish_gpu(obj);
2136 dev_priv->mm.interruptible = was_interruptible;
2141 static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y)
2143 struct drm_device *dev = crtc->dev;
2144 struct drm_i915_master_private *master_priv;
2145 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2147 if (!dev->primary->master)
2150 master_priv = dev->primary->master->driver_priv;
2151 if (!master_priv->sarea_priv)
2154 switch (intel_crtc->pipe) {
2156 master_priv->sarea_priv->pipeA_x = x;
2157 master_priv->sarea_priv->pipeA_y = y;
2160 master_priv->sarea_priv->pipeB_x = x;
2161 master_priv->sarea_priv->pipeB_y = y;
2169 intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
2170 struct drm_framebuffer *fb)
2172 struct drm_device *dev = crtc->dev;
2173 struct drm_i915_private *dev_priv = dev->dev_private;
2174 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2175 struct drm_framebuffer *old_fb;
2180 DRM_ERROR("No FB bound\n");
2184 if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
2185 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2186 plane_name(intel_crtc->plane),
2187 INTEL_INFO(dev)->num_pipes);
2191 mutex_lock(&dev->struct_mutex);
2192 ret = intel_pin_and_fence_fb_obj(dev,
2193 to_intel_framebuffer(fb)->obj,
2196 mutex_unlock(&dev->struct_mutex);
2197 DRM_ERROR("pin & fence failed\n");
2201 ret = dev_priv->display.update_plane(crtc, fb, x, y);
2203 intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);
2204 mutex_unlock(&dev->struct_mutex);
2205 DRM_ERROR("failed to update base address\n");
2215 intel_wait_for_vblank(dev, intel_crtc->pipe);
2216 intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
2219 intel_update_fbc(dev);
2220 mutex_unlock(&dev->struct_mutex);
2222 intel_crtc_update_sarea_pos(crtc, x, y);
2227 static void intel_fdi_normal_train(struct drm_crtc *crtc)
2229 struct drm_device *dev = crtc->dev;
2230 struct drm_i915_private *dev_priv = dev->dev_private;
2231 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2232 int pipe = intel_crtc->pipe;
2235 /* enable normal train */
2236 reg = FDI_TX_CTL(pipe);
2237 temp = I915_READ(reg);
2238 if (IS_IVYBRIDGE(dev)) {
2239 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2240 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
2242 temp &= ~FDI_LINK_TRAIN_NONE;
2243 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
2245 I915_WRITE(reg, temp);
2247 reg = FDI_RX_CTL(pipe);
2248 temp = I915_READ(reg);
2249 if (HAS_PCH_CPT(dev)) {
2250 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2251 temp |= FDI_LINK_TRAIN_NORMAL_CPT;
2253 temp &= ~FDI_LINK_TRAIN_NONE;
2254 temp |= FDI_LINK_TRAIN_NONE;
2256 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
2258 /* wait one idle pattern time */
2262 /* IVB wants error correction enabled */
2263 if (IS_IVYBRIDGE(dev))
2264 I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
2265 FDI_FE_ERRC_ENABLE);
2268 static bool pipe_has_enabled_pch(struct intel_crtc *intel_crtc)
2270 return intel_crtc->base.enabled && intel_crtc->config.has_pch_encoder;
2273 static void ivb_modeset_global_resources(struct drm_device *dev)
2275 struct drm_i915_private *dev_priv = dev->dev_private;
2276 struct intel_crtc *pipe_B_crtc =
2277 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
2278 struct intel_crtc *pipe_C_crtc =
2279 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]);
2283 * When everything is off disable fdi C so that we could enable fdi B
2284 * with all lanes. Note that we don't care about enabled pipes without
2285 * an enabled pch encoder.
2287 if (!pipe_has_enabled_pch(pipe_B_crtc) &&
2288 !pipe_has_enabled_pch(pipe_C_crtc)) {
2289 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
2290 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
2292 temp = I915_READ(SOUTH_CHICKEN1);
2293 temp &= ~FDI_BC_BIFURCATION_SELECT;
2294 DRM_DEBUG_KMS("disabling fdi C rx\n");
2295 I915_WRITE(SOUTH_CHICKEN1, temp);
2299 /* The FDI link training functions for ILK/Ibexpeak. */
2300 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
2302 struct drm_device *dev = crtc->dev;
2303 struct drm_i915_private *dev_priv = dev->dev_private;
2304 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2305 int pipe = intel_crtc->pipe;
2306 int plane = intel_crtc->plane;
2307 u32 reg, temp, tries;
2309 /* FDI needs bits from pipe & plane first */
2310 assert_pipe_enabled(dev_priv, pipe);
2311 assert_plane_enabled(dev_priv, plane);
2313 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2315 reg = FDI_RX_IMR(pipe);
2316 temp = I915_READ(reg);
2317 temp &= ~FDI_RX_SYMBOL_LOCK;
2318 temp &= ~FDI_RX_BIT_LOCK;
2319 I915_WRITE(reg, temp);
2323 /* enable CPU FDI TX and PCH FDI RX */
2324 reg = FDI_TX_CTL(pipe);
2325 temp = I915_READ(reg);
2326 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2327 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2328 temp &= ~FDI_LINK_TRAIN_NONE;
2329 temp |= FDI_LINK_TRAIN_PATTERN_1;
2330 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2332 reg = FDI_RX_CTL(pipe);
2333 temp = I915_READ(reg);
2334 temp &= ~FDI_LINK_TRAIN_NONE;
2335 temp |= FDI_LINK_TRAIN_PATTERN_1;
2336 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2341 /* Ironlake workaround, enable clock pointer after FDI enable*/
2342 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2343 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
2344 FDI_RX_PHASE_SYNC_POINTER_EN);
2346 reg = FDI_RX_IIR(pipe);
2347 for (tries = 0; tries < 5; tries++) {
2348 temp = I915_READ(reg);
2349 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2351 if ((temp & FDI_RX_BIT_LOCK)) {
2352 DRM_DEBUG_KMS("FDI train 1 done.\n");
2353 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2358 DRM_ERROR("FDI train 1 fail!\n");
2361 reg = FDI_TX_CTL(pipe);
2362 temp = I915_READ(reg);
2363 temp &= ~FDI_LINK_TRAIN_NONE;
2364 temp |= FDI_LINK_TRAIN_PATTERN_2;
2365 I915_WRITE(reg, temp);
2367 reg = FDI_RX_CTL(pipe);
2368 temp = I915_READ(reg);
2369 temp &= ~FDI_LINK_TRAIN_NONE;
2370 temp |= FDI_LINK_TRAIN_PATTERN_2;
2371 I915_WRITE(reg, temp);
2376 reg = FDI_RX_IIR(pipe);
2377 for (tries = 0; tries < 5; tries++) {
2378 temp = I915_READ(reg);
2379 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2381 if (temp & FDI_RX_SYMBOL_LOCK) {
2382 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2383 DRM_DEBUG_KMS("FDI train 2 done.\n");
2388 DRM_ERROR("FDI train 2 fail!\n");
2390 DRM_DEBUG_KMS("FDI train done\n");
2394 static const int snb_b_fdi_train_param[] = {
2395 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
2396 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
2397 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
2398 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
2401 /* The FDI link training functions for SNB/Cougarpoint. */
2402 static void gen6_fdi_link_train(struct drm_crtc *crtc)
2404 struct drm_device *dev = crtc->dev;
2405 struct drm_i915_private *dev_priv = dev->dev_private;
2406 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2407 int pipe = intel_crtc->pipe;
2408 u32 reg, temp, i, retry;
2410 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2412 reg = FDI_RX_IMR(pipe);
2413 temp = I915_READ(reg);
2414 temp &= ~FDI_RX_SYMBOL_LOCK;
2415 temp &= ~FDI_RX_BIT_LOCK;
2416 I915_WRITE(reg, temp);
2421 /* enable CPU FDI TX and PCH FDI RX */
2422 reg = FDI_TX_CTL(pipe);
2423 temp = I915_READ(reg);
2424 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2425 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2426 temp &= ~FDI_LINK_TRAIN_NONE;
2427 temp |= FDI_LINK_TRAIN_PATTERN_1;
2428 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2430 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2431 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2433 I915_WRITE(FDI_RX_MISC(pipe),
2434 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2436 reg = FDI_RX_CTL(pipe);
2437 temp = I915_READ(reg);
2438 if (HAS_PCH_CPT(dev)) {
2439 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2440 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2442 temp &= ~FDI_LINK_TRAIN_NONE;
2443 temp |= FDI_LINK_TRAIN_PATTERN_1;
2445 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2450 for (i = 0; i < 4; i++) {
2451 reg = FDI_TX_CTL(pipe);
2452 temp = I915_READ(reg);
2453 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2454 temp |= snb_b_fdi_train_param[i];
2455 I915_WRITE(reg, temp);
2460 for (retry = 0; retry < 5; retry++) {
2461 reg = FDI_RX_IIR(pipe);
2462 temp = I915_READ(reg);
2463 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2464 if (temp & FDI_RX_BIT_LOCK) {
2465 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2466 DRM_DEBUG_KMS("FDI train 1 done.\n");
2475 DRM_ERROR("FDI train 1 fail!\n");
2478 reg = FDI_TX_CTL(pipe);
2479 temp = I915_READ(reg);
2480 temp &= ~FDI_LINK_TRAIN_NONE;
2481 temp |= FDI_LINK_TRAIN_PATTERN_2;
2483 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2485 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2487 I915_WRITE(reg, temp);
2489 reg = FDI_RX_CTL(pipe);
2490 temp = I915_READ(reg);
2491 if (HAS_PCH_CPT(dev)) {
2492 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2493 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2495 temp &= ~FDI_LINK_TRAIN_NONE;
2496 temp |= FDI_LINK_TRAIN_PATTERN_2;
2498 I915_WRITE(reg, temp);
2503 for (i = 0; i < 4; i++) {
2504 reg = FDI_TX_CTL(pipe);
2505 temp = I915_READ(reg);
2506 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2507 temp |= snb_b_fdi_train_param[i];
2508 I915_WRITE(reg, temp);
2513 for (retry = 0; retry < 5; retry++) {
2514 reg = FDI_RX_IIR(pipe);
2515 temp = I915_READ(reg);
2516 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2517 if (temp & FDI_RX_SYMBOL_LOCK) {
2518 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2519 DRM_DEBUG_KMS("FDI train 2 done.\n");
2528 DRM_ERROR("FDI train 2 fail!\n");
2530 DRM_DEBUG_KMS("FDI train done.\n");
2533 /* Manual link training for Ivy Bridge A0 parts */
2534 static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
2536 struct drm_device *dev = crtc->dev;
2537 struct drm_i915_private *dev_priv = dev->dev_private;
2538 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2539 int pipe = intel_crtc->pipe;
2542 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2544 reg = FDI_RX_IMR(pipe);
2545 temp = I915_READ(reg);
2546 temp &= ~FDI_RX_SYMBOL_LOCK;
2547 temp &= ~FDI_RX_BIT_LOCK;
2548 I915_WRITE(reg, temp);
2553 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2554 I915_READ(FDI_RX_IIR(pipe)));
2556 /* enable CPU FDI TX and PCH FDI RX */
2557 reg = FDI_TX_CTL(pipe);
2558 temp = I915_READ(reg);
2559 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2560 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2561 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
2562 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
2563 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2564 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2565 temp |= FDI_COMPOSITE_SYNC;
2566 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2568 I915_WRITE(FDI_RX_MISC(pipe),
2569 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2571 reg = FDI_RX_CTL(pipe);
2572 temp = I915_READ(reg);
2573 temp &= ~FDI_LINK_TRAIN_AUTO;
2574 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2575 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2576 temp |= FDI_COMPOSITE_SYNC;
2577 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2582 for (i = 0; i < 4; i++) {
2583 reg = FDI_TX_CTL(pipe);
2584 temp = I915_READ(reg);
2585 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2586 temp |= snb_b_fdi_train_param[i];
2587 I915_WRITE(reg, temp);
2592 reg = FDI_RX_IIR(pipe);
2593 temp = I915_READ(reg);
2594 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2596 if (temp & FDI_RX_BIT_LOCK ||
2597 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
2598 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2599 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", i);
2604 DRM_ERROR("FDI train 1 fail!\n");
2607 reg = FDI_TX_CTL(pipe);
2608 temp = I915_READ(reg);
2609 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2610 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
2611 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2612 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2613 I915_WRITE(reg, temp);
2615 reg = FDI_RX_CTL(pipe);
2616 temp = I915_READ(reg);
2617 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2618 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2619 I915_WRITE(reg, temp);
2624 for (i = 0; i < 4; i++) {
2625 reg = FDI_TX_CTL(pipe);
2626 temp = I915_READ(reg);
2627 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2628 temp |= snb_b_fdi_train_param[i];
2629 I915_WRITE(reg, temp);
2634 reg = FDI_RX_IIR(pipe);
2635 temp = I915_READ(reg);
2636 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2638 if (temp & FDI_RX_SYMBOL_LOCK) {
2639 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2640 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", i);
2645 DRM_ERROR("FDI train 2 fail!\n");
2647 DRM_DEBUG_KMS("FDI train done.\n");
2650 static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
2652 struct drm_device *dev = intel_crtc->base.dev;
2653 struct drm_i915_private *dev_priv = dev->dev_private;
2654 int pipe = intel_crtc->pipe;
2658 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2659 reg = FDI_RX_CTL(pipe);
2660 temp = I915_READ(reg);
2661 temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
2662 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2663 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2664 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
2669 /* Switch from Rawclk to PCDclk */
2670 temp = I915_READ(reg);
2671 I915_WRITE(reg, temp | FDI_PCDCLK);
2676 /* Enable CPU FDI TX PLL, always on for Ironlake */
2677 reg = FDI_TX_CTL(pipe);
2678 temp = I915_READ(reg);
2679 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
2680 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
2687 static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
2689 struct drm_device *dev = intel_crtc->base.dev;
2690 struct drm_i915_private *dev_priv = dev->dev_private;
2691 int pipe = intel_crtc->pipe;
2694 /* Switch from PCDclk to Rawclk */
2695 reg = FDI_RX_CTL(pipe);
2696 temp = I915_READ(reg);
2697 I915_WRITE(reg, temp & ~FDI_PCDCLK);
2699 /* Disable CPU FDI TX PLL */
2700 reg = FDI_TX_CTL(pipe);
2701 temp = I915_READ(reg);
2702 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
2707 reg = FDI_RX_CTL(pipe);
2708 temp = I915_READ(reg);
2709 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
2711 /* Wait for the clocks to turn off. */
2716 static void ironlake_fdi_disable(struct drm_crtc *crtc)
2718 struct drm_device *dev = crtc->dev;
2719 struct drm_i915_private *dev_priv = dev->dev_private;
2720 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2721 int pipe = intel_crtc->pipe;
2724 /* disable CPU FDI tx and PCH FDI rx */
2725 reg = FDI_TX_CTL(pipe);
2726 temp = I915_READ(reg);
2727 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
2730 reg = FDI_RX_CTL(pipe);
2731 temp = I915_READ(reg);
2732 temp &= ~(0x7 << 16);
2733 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2734 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
2739 /* Ironlake workaround, disable clock pointer after downing FDI */
2740 if (HAS_PCH_IBX(dev)) {
2741 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2744 /* still set train pattern 1 */
2745 reg = FDI_TX_CTL(pipe);
2746 temp = I915_READ(reg);
2747 temp &= ~FDI_LINK_TRAIN_NONE;
2748 temp |= FDI_LINK_TRAIN_PATTERN_1;
2749 I915_WRITE(reg, temp);
2751 reg = FDI_RX_CTL(pipe);
2752 temp = I915_READ(reg);
2753 if (HAS_PCH_CPT(dev)) {
2754 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2755 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2757 temp &= ~FDI_LINK_TRAIN_NONE;
2758 temp |= FDI_LINK_TRAIN_PATTERN_1;
2760 /* BPC in FDI rx is consistent with that in PIPECONF */
2761 temp &= ~(0x07 << 16);
2762 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2763 I915_WRITE(reg, temp);
2769 static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
2771 struct drm_device *dev = crtc->dev;
2772 struct drm_i915_private *dev_priv = dev->dev_private;
2773 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2774 unsigned long flags;
2777 if (i915_reset_in_progress(&dev_priv->gpu_error) ||
2778 intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
2781 spin_lock_irqsave(&dev->event_lock, flags);
2782 pending = to_intel_crtc(crtc)->unpin_work != NULL;
2783 spin_unlock_irqrestore(&dev->event_lock, flags);
2788 static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
2790 struct drm_device *dev = crtc->dev;
2791 struct drm_i915_private *dev_priv = dev->dev_private;
2793 if (crtc->fb == NULL)
2796 WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
2798 wait_event(dev_priv->pending_flip_queue,
2799 !intel_crtc_has_pending_flip(crtc));
2801 mutex_lock(&dev->struct_mutex);
2802 intel_finish_fb(crtc->fb);
2803 mutex_unlock(&dev->struct_mutex);
2806 /* Program iCLKIP clock to the desired frequency */
2807 static void lpt_program_iclkip(struct drm_crtc *crtc)
2809 struct drm_device *dev = crtc->dev;
2810 struct drm_i915_private *dev_priv = dev->dev_private;
2811 u32 divsel, phaseinc, auxdiv, phasedir = 0;
2814 mutex_lock(&dev_priv->dpio_lock);
2816 /* It is necessary to ungate the pixclk gate prior to programming
2817 * the divisors, and gate it back when it is done.
2819 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
2821 /* Disable SSCCTL */
2822 intel_sbi_write(dev_priv, SBI_SSCCTL6,
2823 intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) |
2827 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
2828 if (crtc->mode.clock == 20000) {
2833 /* The iCLK virtual clock root frequency is in MHz,
2834 * but the crtc->mode.clock in in KHz. To get the divisors,
2835 * it is necessary to divide one by another, so we
2836 * convert the virtual clock precision to KHz here for higher
2839 u32 iclk_virtual_root_freq = 172800 * 1000;
2840 u32 iclk_pi_range = 64;
2841 u32 desired_divisor, msb_divisor_value, pi_value;
2843 desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock);
2844 msb_divisor_value = desired_divisor / iclk_pi_range;
2845 pi_value = desired_divisor % iclk_pi_range;
2848 divsel = msb_divisor_value - 2;
2849 phaseinc = pi_value;
2852 /* This should not happen with any sane values */
2853 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
2854 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
2855 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
2856 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
2858 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
2865 /* Program SSCDIVINTPHASE6 */
2866 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
2867 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
2868 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
2869 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
2870 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
2871 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
2872 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
2873 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
2875 /* Program SSCAUXDIV */
2876 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
2877 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
2878 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
2879 intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
2881 /* Enable modulator and associated divider */
2882 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
2883 temp &= ~SBI_SSCCTL_DISABLE;
2884 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
2886 /* Wait for initialization time */
2889 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
2891 mutex_unlock(&dev_priv->dpio_lock);
2894 static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc,
2895 enum pipe pch_transcoder)
2897 struct drm_device *dev = crtc->base.dev;
2898 struct drm_i915_private *dev_priv = dev->dev_private;
2899 enum transcoder cpu_transcoder = crtc->config.cpu_transcoder;
2901 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder),
2902 I915_READ(HTOTAL(cpu_transcoder)));
2903 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder),
2904 I915_READ(HBLANK(cpu_transcoder)));
2905 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder),
2906 I915_READ(HSYNC(cpu_transcoder)));
2908 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder),
2909 I915_READ(VTOTAL(cpu_transcoder)));
2910 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder),
2911 I915_READ(VBLANK(cpu_transcoder)));
2912 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder),
2913 I915_READ(VSYNC(cpu_transcoder)));
2914 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder),
2915 I915_READ(VSYNCSHIFT(cpu_transcoder)));
2919 * Enable PCH resources required for PCH ports:
2921 * - FDI training & RX/TX
2922 * - update transcoder timings
2923 * - DP transcoding bits
2926 static void ironlake_pch_enable(struct drm_crtc *crtc)
2928 struct drm_device *dev = crtc->dev;
2929 struct drm_i915_private *dev_priv = dev->dev_private;
2930 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2931 int pipe = intel_crtc->pipe;
2934 assert_pch_transcoder_disabled(dev_priv, pipe);
2936 /* Write the TU size bits before fdi link training, so that error
2937 * detection works. */
2938 I915_WRITE(FDI_RX_TUSIZE1(pipe),
2939 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
2941 /* For PCH output, training FDI link */
2942 dev_priv->display.fdi_link_train(crtc);
2944 /* XXX: pch pll's can be enabled any time before we enable the PCH
2945 * transcoder, and we actually should do this to not upset any PCH
2946 * transcoder that already use the clock when we share it.
2948 * Note that enable_pch_pll tries to do the right thing, but get_pch_pll
2949 * unconditionally resets the pll - we need that to have the right LVDS
2950 * enable sequence. */
2951 ironlake_enable_pch_pll(intel_crtc);
2953 if (HAS_PCH_CPT(dev)) {
2956 temp = I915_READ(PCH_DPLL_SEL);
2960 temp |= TRANSA_DPLL_ENABLE;
2961 sel = TRANSA_DPLLB_SEL;
2964 temp |= TRANSB_DPLL_ENABLE;
2965 sel = TRANSB_DPLLB_SEL;
2968 temp |= TRANSC_DPLL_ENABLE;
2969 sel = TRANSC_DPLLB_SEL;
2972 if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B)
2976 I915_WRITE(PCH_DPLL_SEL, temp);
2979 /* set transcoder timing, panel must allow it */
2980 assert_panel_unlocked(dev_priv, pipe);
2981 ironlake_pch_transcoder_set_timings(intel_crtc, pipe);
2983 intel_fdi_normal_train(crtc);
2985 /* For PCH DP, enable TRANS_DP_CTL */
2986 if (HAS_PCH_CPT(dev) &&
2987 (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
2988 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
2989 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
2990 reg = TRANS_DP_CTL(pipe);
2991 temp = I915_READ(reg);
2992 temp &= ~(TRANS_DP_PORT_SEL_MASK |
2993 TRANS_DP_SYNC_MASK |
2995 temp |= (TRANS_DP_OUTPUT_ENABLE |
2996 TRANS_DP_ENH_FRAMING);
2997 temp |= bpc << 9; /* same format but at 11:9 */
2999 if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
3000 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
3001 if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
3002 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
3004 switch (intel_trans_dp_port_sel(crtc)) {
3006 temp |= TRANS_DP_PORT_SEL_B;
3009 temp |= TRANS_DP_PORT_SEL_C;
3012 temp |= TRANS_DP_PORT_SEL_D;
3018 I915_WRITE(reg, temp);
3021 ironlake_enable_pch_transcoder(dev_priv, pipe);
3024 static void lpt_pch_enable(struct drm_crtc *crtc)
3026 struct drm_device *dev = crtc->dev;
3027 struct drm_i915_private *dev_priv = dev->dev_private;
3028 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3029 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
3031 assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
3033 lpt_program_iclkip(crtc);
3035 /* Set transcoder timing. */
3036 ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A);
3038 lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
3041 static void intel_put_pch_pll(struct intel_crtc *intel_crtc)
3043 struct intel_pch_pll *pll = intel_crtc->pch_pll;
3048 if (pll->refcount == 0) {
3049 WARN(1, "bad PCH PLL refcount\n");
3054 intel_crtc->pch_pll = NULL;
3057 static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp)
3059 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
3060 struct intel_pch_pll *pll;
3063 pll = intel_crtc->pch_pll;
3065 DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n",
3066 intel_crtc->base.base.id, pll->pll_reg);
3070 if (HAS_PCH_IBX(dev_priv->dev)) {
3071 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3072 i = intel_crtc->pipe;
3073 pll = &dev_priv->pch_plls[i];
3075 DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n",
3076 intel_crtc->base.base.id, pll->pll_reg);
3081 for (i = 0; i < dev_priv->num_pch_pll; i++) {
3082 pll = &dev_priv->pch_plls[i];
3084 /* Only want to check enabled timings first */
3085 if (pll->refcount == 0)
3088 if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) &&
3089 fp == I915_READ(pll->fp0_reg)) {
3090 DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n",
3091 intel_crtc->base.base.id,
3092 pll->pll_reg, pll->refcount, pll->active);
3098 /* Ok no matching timings, maybe there's a free one? */
3099 for (i = 0; i < dev_priv->num_pch_pll; i++) {
3100 pll = &dev_priv->pch_plls[i];
3101 if (pll->refcount == 0) {
3102 DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n",
3103 intel_crtc->base.base.id, pll->pll_reg);
3111 intel_crtc->pch_pll = pll;
3113 DRM_DEBUG_DRIVER("using pll %d for pipe %c\n", i, pipe_name(intel_crtc->pipe));
3114 prepare: /* separate function? */
3115 DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg);
3117 /* Wait for the clocks to stabilize before rewriting the regs */
3118 I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE);
3119 POSTING_READ(pll->pll_reg);
3122 I915_WRITE(pll->fp0_reg, fp);
3123 I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE);
3128 static void cpt_verify_modeset(struct drm_device *dev, int pipe)
3130 struct drm_i915_private *dev_priv = dev->dev_private;
3131 int dslreg = PIPEDSL(pipe);
3134 temp = I915_READ(dslreg);
3136 if (wait_for(I915_READ(dslreg) != temp, 5)) {
3137 if (wait_for(I915_READ(dslreg) != temp, 5))
3138 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe));
3142 static void ironlake_pfit_enable(struct intel_crtc *crtc)
3144 struct drm_device *dev = crtc->base.dev;
3145 struct drm_i915_private *dev_priv = dev->dev_private;
3146 int pipe = crtc->pipe;
3148 if (crtc->config.pch_pfit.size) {
3149 /* Force use of hard-coded filter coefficients
3150 * as some pre-programmed values are broken,
3153 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
3154 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
3155 PF_PIPE_SEL_IVB(pipe));
3157 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
3158 I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos);
3159 I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size);
3163 static void ironlake_crtc_enable(struct drm_crtc *crtc)
3165 struct drm_device *dev = crtc->dev;
3166 struct drm_i915_private *dev_priv = dev->dev_private;
3167 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3168 struct intel_encoder *encoder;
3169 int pipe = intel_crtc->pipe;
3170 int plane = intel_crtc->plane;
3173 WARN_ON(!crtc->enabled);
3175 if (intel_crtc->active)
3178 intel_crtc->active = true;
3180 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3181 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3183 intel_update_watermarks(dev);
3185 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
3186 temp = I915_READ(PCH_LVDS);
3187 if ((temp & LVDS_PORT_EN) == 0)
3188 I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN);
3192 if (intel_crtc->config.has_pch_encoder) {
3193 /* Note: FDI PLL enabling _must_ be done before we enable the
3194 * cpu pipes, hence this is separate from all the other fdi/pch
3196 ironlake_fdi_pll_enable(intel_crtc);
3198 assert_fdi_tx_disabled(dev_priv, pipe);
3199 assert_fdi_rx_disabled(dev_priv, pipe);
3202 for_each_encoder_on_crtc(dev, crtc, encoder)
3203 if (encoder->pre_enable)
3204 encoder->pre_enable(encoder);
3206 /* Enable panel fitting for LVDS */
3207 ironlake_pfit_enable(intel_crtc);
3210 * On ILK+ LUT must be loaded before the pipe is running but with
3213 intel_crtc_load_lut(crtc);
3215 intel_enable_pipe(dev_priv, pipe,
3216 intel_crtc->config.has_pch_encoder);
3217 intel_enable_plane(dev_priv, plane, pipe);
3219 if (intel_crtc->config.has_pch_encoder)
3220 ironlake_pch_enable(crtc);
3222 mutex_lock(&dev->struct_mutex);
3223 intel_update_fbc(dev);
3224 mutex_unlock(&dev->struct_mutex);
3226 intel_crtc_update_cursor(crtc, true);
3228 for_each_encoder_on_crtc(dev, crtc, encoder)
3229 encoder->enable(encoder);
3231 if (HAS_PCH_CPT(dev))
3232 cpt_verify_modeset(dev, intel_crtc->pipe);
3235 * There seems to be a race in PCH platform hw (at least on some
3236 * outputs) where an enabled pipe still completes any pageflip right
3237 * away (as if the pipe is off) instead of waiting for vblank. As soon
3238 * as the first vblank happend, everything works as expected. Hence just
3239 * wait for one vblank before returning to avoid strange things
3242 intel_wait_for_vblank(dev, intel_crtc->pipe);
3245 static void haswell_crtc_enable(struct drm_crtc *crtc)
3247 struct drm_device *dev = crtc->dev;
3248 struct drm_i915_private *dev_priv = dev->dev_private;
3249 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3250 struct intel_encoder *encoder;
3251 int pipe = intel_crtc->pipe;
3252 int plane = intel_crtc->plane;
3254 WARN_ON(!crtc->enabled);
3256 if (intel_crtc->active)
3259 intel_crtc->active = true;
3261 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3262 if (intel_crtc->config.has_pch_encoder)
3263 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3265 intel_update_watermarks(dev);
3267 if (intel_crtc->config.has_pch_encoder)
3268 dev_priv->display.fdi_link_train(crtc);
3270 for_each_encoder_on_crtc(dev, crtc, encoder)
3271 if (encoder->pre_enable)
3272 encoder->pre_enable(encoder);
3274 intel_ddi_enable_pipe_clock(intel_crtc);
3276 /* Enable panel fitting for eDP */
3277 ironlake_pfit_enable(intel_crtc);
3280 * On ILK+ LUT must be loaded before the pipe is running but with
3283 intel_crtc_load_lut(crtc);
3285 intel_ddi_set_pipe_settings(crtc);
3286 intel_ddi_enable_transcoder_func(crtc);
3288 intel_enable_pipe(dev_priv, pipe,
3289 intel_crtc->config.has_pch_encoder);
3290 intel_enable_plane(dev_priv, plane, pipe);
3292 if (intel_crtc->config.has_pch_encoder)
3293 lpt_pch_enable(crtc);
3295 mutex_lock(&dev->struct_mutex);
3296 intel_update_fbc(dev);
3297 mutex_unlock(&dev->struct_mutex);
3299 intel_crtc_update_cursor(crtc, true);
3301 for_each_encoder_on_crtc(dev, crtc, encoder)
3302 encoder->enable(encoder);
3305 * There seems to be a race in PCH platform hw (at least on some
3306 * outputs) where an enabled pipe still completes any pageflip right
3307 * away (as if the pipe is off) instead of waiting for vblank. As soon
3308 * as the first vblank happend, everything works as expected. Hence just
3309 * wait for one vblank before returning to avoid strange things
3312 intel_wait_for_vblank(dev, intel_crtc->pipe);
3315 static void ironlake_pfit_disable(struct intel_crtc *crtc)
3317 struct drm_device *dev = crtc->base.dev;
3318 struct drm_i915_private *dev_priv = dev->dev_private;
3319 int pipe = crtc->pipe;
3321 /* To avoid upsetting the power well on haswell only disable the pfit if
3322 * it's in use. The hw state code will make sure we get this right. */
3323 if (crtc->config.pch_pfit.size) {
3324 I915_WRITE(PF_CTL(pipe), 0);
3325 I915_WRITE(PF_WIN_POS(pipe), 0);
3326 I915_WRITE(PF_WIN_SZ(pipe), 0);
3330 static void ironlake_crtc_disable(struct drm_crtc *crtc)
3332 struct drm_device *dev = crtc->dev;
3333 struct drm_i915_private *dev_priv = dev->dev_private;
3334 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3335 struct intel_encoder *encoder;
3336 int pipe = intel_crtc->pipe;
3337 int plane = intel_crtc->plane;
3341 if (!intel_crtc->active)
3344 for_each_encoder_on_crtc(dev, crtc, encoder)
3345 encoder->disable(encoder);
3347 intel_crtc_wait_for_pending_flips(crtc);
3348 drm_vblank_off(dev, pipe);
3349 intel_crtc_update_cursor(crtc, false);
3351 intel_disable_plane(dev_priv, plane, pipe);
3353 if (dev_priv->cfb_plane == plane)
3354 intel_disable_fbc(dev);
3356 intel_set_pch_fifo_underrun_reporting(dev, pipe, false);
3357 intel_disable_pipe(dev_priv, pipe);
3359 ironlake_pfit_disable(intel_crtc);
3361 for_each_encoder_on_crtc(dev, crtc, encoder)
3362 if (encoder->post_disable)
3363 encoder->post_disable(encoder);
3365 ironlake_fdi_disable(crtc);
3367 ironlake_disable_pch_transcoder(dev_priv, pipe);
3368 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3370 if (HAS_PCH_CPT(dev)) {
3371 /* disable TRANS_DP_CTL */
3372 reg = TRANS_DP_CTL(pipe);
3373 temp = I915_READ(reg);
3374 temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK);
3375 temp |= TRANS_DP_PORT_SEL_NONE;
3376 I915_WRITE(reg, temp);
3378 /* disable DPLL_SEL */
3379 temp = I915_READ(PCH_DPLL_SEL);
3382 temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL);
3385 temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
3388 /* C shares PLL A or B */
3389 temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL);
3394 I915_WRITE(PCH_DPLL_SEL, temp);
3397 /* disable PCH DPLL */
3398 intel_disable_pch_pll(intel_crtc);
3400 ironlake_fdi_pll_disable(intel_crtc);
3402 intel_crtc->active = false;
3403 intel_update_watermarks(dev);
3405 mutex_lock(&dev->struct_mutex);
3406 intel_update_fbc(dev);
3407 mutex_unlock(&dev->struct_mutex);
3410 static void haswell_crtc_disable(struct drm_crtc *crtc)
3412 struct drm_device *dev = crtc->dev;
3413 struct drm_i915_private *dev_priv = dev->dev_private;
3414 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3415 struct intel_encoder *encoder;
3416 int pipe = intel_crtc->pipe;
3417 int plane = intel_crtc->plane;
3418 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
3420 if (!intel_crtc->active)
3423 for_each_encoder_on_crtc(dev, crtc, encoder)
3424 encoder->disable(encoder);
3426 intel_crtc_wait_for_pending_flips(crtc);
3427 drm_vblank_off(dev, pipe);
3428 intel_crtc_update_cursor(crtc, false);
3430 /* FBC must be disabled before disabling the plane on HSW. */
3431 if (dev_priv->cfb_plane == plane)
3432 intel_disable_fbc(dev);
3434 intel_disable_plane(dev_priv, plane, pipe);
3436 if (intel_crtc->config.has_pch_encoder)
3437 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false);
3438 intel_disable_pipe(dev_priv, pipe);
3440 intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
3442 ironlake_pfit_disable(intel_crtc);
3444 intel_ddi_disable_pipe_clock(intel_crtc);
3446 for_each_encoder_on_crtc(dev, crtc, encoder)
3447 if (encoder->post_disable)
3448 encoder->post_disable(encoder);
3450 if (intel_crtc->config.has_pch_encoder) {
3451 lpt_disable_pch_transcoder(dev_priv);
3452 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3453 intel_ddi_fdi_disable(crtc);
3456 intel_crtc->active = false;
3457 intel_update_watermarks(dev);
3459 mutex_lock(&dev->struct_mutex);
3460 intel_update_fbc(dev);
3461 mutex_unlock(&dev->struct_mutex);
3464 static void ironlake_crtc_off(struct drm_crtc *crtc)
3466 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3467 intel_put_pch_pll(intel_crtc);
3470 static void haswell_crtc_off(struct drm_crtc *crtc)
3472 intel_ddi_put_crtc_pll(crtc);
3475 static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
3477 if (!enable && intel_crtc->overlay) {
3478 struct drm_device *dev = intel_crtc->base.dev;
3479 struct drm_i915_private *dev_priv = dev->dev_private;
3481 mutex_lock(&dev->struct_mutex);
3482 dev_priv->mm.interruptible = false;
3483 (void) intel_overlay_switch_off(intel_crtc->overlay);
3484 dev_priv->mm.interruptible = true;
3485 mutex_unlock(&dev->struct_mutex);
3488 /* Let userspace switch the overlay on again. In most cases userspace
3489 * has to recompute where to put it anyway.
3494 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
3495 * cursor plane briefly if not already running after enabling the display
3497 * This workaround avoids occasional blank screens when self refresh is
3501 g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe)
3503 u32 cntl = I915_READ(CURCNTR(pipe));
3505 if ((cntl & CURSOR_MODE) == 0) {
3506 u32 fw_bcl_self = I915_READ(FW_BLC_SELF);
3508 I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN);
3509 I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX);
3510 intel_wait_for_vblank(dev_priv->dev, pipe);
3511 I915_WRITE(CURCNTR(pipe), cntl);
3512 I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe)));
3513 I915_WRITE(FW_BLC_SELF, fw_bcl_self);
3517 static void i9xx_pfit_enable(struct intel_crtc *crtc)
3519 struct drm_device *dev = crtc->base.dev;
3520 struct drm_i915_private *dev_priv = dev->dev_private;
3521 struct intel_crtc_config *pipe_config = &crtc->config;
3523 if (!crtc->config.gmch_pfit.control)
3527 * The panel fitter should only be adjusted whilst the pipe is disabled,
3528 * according to register description and PRM.
3530 WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
3531 assert_pipe_disabled(dev_priv, crtc->pipe);
3533 I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios);
3534 I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control);
3536 /* Border color in case we don't scale up to the full screen. Black by
3537 * default, change to something else for debugging. */
3538 I915_WRITE(BCLRPAT(crtc->pipe), 0);
3541 static void valleyview_crtc_enable(struct drm_crtc *crtc)
3543 struct drm_device *dev = crtc->dev;
3544 struct drm_i915_private *dev_priv = dev->dev_private;
3545 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3546 struct intel_encoder *encoder;
3547 int pipe = intel_crtc->pipe;
3548 int plane = intel_crtc->plane;
3550 WARN_ON(!crtc->enabled);
3552 if (intel_crtc->active)
3555 intel_crtc->active = true;
3556 intel_update_watermarks(dev);
3558 mutex_lock(&dev_priv->dpio_lock);
3560 for_each_encoder_on_crtc(dev, crtc, encoder)
3561 if (encoder->pre_pll_enable)
3562 encoder->pre_pll_enable(encoder);
3564 intel_enable_pll(dev_priv, pipe);
3566 for_each_encoder_on_crtc(dev, crtc, encoder)
3567 if (encoder->pre_enable)
3568 encoder->pre_enable(encoder);
3570 /* VLV wants encoder enabling _before_ the pipe is up. */
3571 for_each_encoder_on_crtc(dev, crtc, encoder)
3572 encoder->enable(encoder);
3574 /* Enable panel fitting for eDP */
3575 i9xx_pfit_enable(intel_crtc);
3577 intel_enable_pipe(dev_priv, pipe, false);
3578 intel_enable_plane(dev_priv, plane, pipe);
3580 intel_crtc_load_lut(crtc);
3581 intel_update_fbc(dev);
3583 /* Give the overlay scaler a chance to enable if it's on this pipe */
3584 intel_crtc_dpms_overlay(intel_crtc, true);
3585 intel_crtc_update_cursor(crtc, true);
3587 mutex_unlock(&dev_priv->dpio_lock);
3590 static void i9xx_crtc_enable(struct drm_crtc *crtc)
3592 struct drm_device *dev = crtc->dev;
3593 struct drm_i915_private *dev_priv = dev->dev_private;
3594 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3595 struct intel_encoder *encoder;
3596 int pipe = intel_crtc->pipe;
3597 int plane = intel_crtc->plane;
3599 WARN_ON(!crtc->enabled);
3601 if (intel_crtc->active)
3604 intel_crtc->active = true;
3605 intel_update_watermarks(dev);
3607 intel_enable_pll(dev_priv, pipe);
3609 for_each_encoder_on_crtc(dev, crtc, encoder)
3610 if (encoder->pre_enable)
3611 encoder->pre_enable(encoder);
3613 /* Enable panel fitting for LVDS */
3614 i9xx_pfit_enable(intel_crtc);
3616 intel_enable_pipe(dev_priv, pipe, false);
3617 intel_enable_plane(dev_priv, plane, pipe);
3619 g4x_fixup_plane(dev_priv, pipe);
3621 intel_crtc_load_lut(crtc);
3622 intel_update_fbc(dev);
3624 /* Give the overlay scaler a chance to enable if it's on this pipe */
3625 intel_crtc_dpms_overlay(intel_crtc, true);
3626 intel_crtc_update_cursor(crtc, true);
3628 for_each_encoder_on_crtc(dev, crtc, encoder)
3629 encoder->enable(encoder);
3632 static void i9xx_pfit_disable(struct intel_crtc *crtc)
3634 struct drm_device *dev = crtc->base.dev;
3635 struct drm_i915_private *dev_priv = dev->dev_private;
3637 if (!crtc->config.gmch_pfit.control)
3640 assert_pipe_disabled(dev_priv, crtc->pipe);
3642 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
3643 I915_READ(PFIT_CONTROL));
3644 I915_WRITE(PFIT_CONTROL, 0);
3647 static void i9xx_crtc_disable(struct drm_crtc *crtc)
3649 struct drm_device *dev = crtc->dev;
3650 struct drm_i915_private *dev_priv = dev->dev_private;
3651 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3652 struct intel_encoder *encoder;
3653 int pipe = intel_crtc->pipe;
3654 int plane = intel_crtc->plane;
3656 if (!intel_crtc->active)
3659 for_each_encoder_on_crtc(dev, crtc, encoder)
3660 encoder->disable(encoder);
3662 /* Give the overlay scaler a chance to disable if it's on this pipe */
3663 intel_crtc_wait_for_pending_flips(crtc);
3664 drm_vblank_off(dev, pipe);
3665 intel_crtc_dpms_overlay(intel_crtc, false);
3666 intel_crtc_update_cursor(crtc, false);
3668 if (dev_priv->cfb_plane == plane)
3669 intel_disable_fbc(dev);
3671 intel_disable_plane(dev_priv, plane, pipe);
3672 intel_disable_pipe(dev_priv, pipe);
3674 i9xx_pfit_disable(intel_crtc);
3676 for_each_encoder_on_crtc(dev, crtc, encoder)
3677 if (encoder->post_disable)
3678 encoder->post_disable(encoder);
3680 intel_disable_pll(dev_priv, pipe);
3682 intel_crtc->active = false;
3683 intel_update_fbc(dev);
3684 intel_update_watermarks(dev);
3687 static void i9xx_crtc_off(struct drm_crtc *crtc)
3691 static void intel_crtc_update_sarea(struct drm_crtc *crtc,
3694 struct drm_device *dev = crtc->dev;
3695 struct drm_i915_master_private *master_priv;
3696 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3697 int pipe = intel_crtc->pipe;
3699 if (!dev->primary->master)
3702 master_priv = dev->primary->master->driver_priv;
3703 if (!master_priv->sarea_priv)
3708 master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
3709 master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
3712 master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
3713 master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
3716 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
3722 * Sets the power management mode of the pipe and plane.
3724 void intel_crtc_update_dpms(struct drm_crtc *crtc)
3726 struct drm_device *dev = crtc->dev;
3727 struct drm_i915_private *dev_priv = dev->dev_private;
3728 struct intel_encoder *intel_encoder;
3729 bool enable = false;
3731 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
3732 enable |= intel_encoder->connectors_active;
3735 dev_priv->display.crtc_enable(crtc);
3737 dev_priv->display.crtc_disable(crtc);
3739 intel_crtc_update_sarea(crtc, enable);
3742 static void intel_crtc_disable(struct drm_crtc *crtc)
3744 struct drm_device *dev = crtc->dev;
3745 struct drm_connector *connector;
3746 struct drm_i915_private *dev_priv = dev->dev_private;
3747 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3749 /* crtc should still be enabled when we disable it. */
3750 WARN_ON(!crtc->enabled);
3752 dev_priv->display.crtc_disable(crtc);
3753 intel_crtc->eld_vld = false;
3754 intel_crtc_update_sarea(crtc, false);
3755 dev_priv->display.off(crtc);
3757 assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
3758 assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
3761 mutex_lock(&dev->struct_mutex);
3762 intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
3763 mutex_unlock(&dev->struct_mutex);
3767 /* Update computed state. */
3768 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3769 if (!connector->encoder || !connector->encoder->crtc)
3772 if (connector->encoder->crtc != crtc)
3775 connector->dpms = DRM_MODE_DPMS_OFF;
3776 to_intel_encoder(connector->encoder)->connectors_active = false;
3780 void intel_modeset_disable(struct drm_device *dev)
3782 struct drm_crtc *crtc;
3784 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
3786 intel_crtc_disable(crtc);
3790 void intel_encoder_destroy(struct drm_encoder *encoder)
3792 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
3794 drm_encoder_cleanup(encoder);
3795 kfree(intel_encoder);
3798 /* Simple dpms helper for encodres with just one connector, no cloning and only
3799 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
3800 * state of the entire output pipe. */
3801 void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
3803 if (mode == DRM_MODE_DPMS_ON) {
3804 encoder->connectors_active = true;
3806 intel_crtc_update_dpms(encoder->base.crtc);
3808 encoder->connectors_active = false;
3810 intel_crtc_update_dpms(encoder->base.crtc);
3814 /* Cross check the actual hw state with our own modeset state tracking (and it's
3815 * internal consistency). */
3816 static void intel_connector_check_state(struct intel_connector *connector)
3818 if (connector->get_hw_state(connector)) {
3819 struct intel_encoder *encoder = connector->encoder;
3820 struct drm_crtc *crtc;
3821 bool encoder_enabled;
3824 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
3825 connector->base.base.id,
3826 drm_get_connector_name(&connector->base));
3828 WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
3829 "wrong connector dpms state\n");
3830 WARN(connector->base.encoder != &encoder->base,
3831 "active connector not linked to encoder\n");
3832 WARN(!encoder->connectors_active,
3833 "encoder->connectors_active not set\n");
3835 encoder_enabled = encoder->get_hw_state(encoder, &pipe);
3836 WARN(!encoder_enabled, "encoder not enabled\n");
3837 if (WARN_ON(!encoder->base.crtc))
3840 crtc = encoder->base.crtc;
3842 WARN(!crtc->enabled, "crtc not enabled\n");
3843 WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
3844 WARN(pipe != to_intel_crtc(crtc)->pipe,
3845 "encoder active on the wrong pipe\n");
3849 /* Even simpler default implementation, if there's really no special case to
3851 void intel_connector_dpms(struct drm_connector *connector, int mode)
3853 struct intel_encoder *encoder = intel_attached_encoder(connector);
3855 /* All the simple cases only support two dpms states. */
3856 if (mode != DRM_MODE_DPMS_ON)
3857 mode = DRM_MODE_DPMS_OFF;
3859 if (mode == connector->dpms)
3862 connector->dpms = mode;
3864 /* Only need to change hw state when actually enabled */
3865 if (encoder->base.crtc)
3866 intel_encoder_dpms(encoder, mode);
3868 WARN_ON(encoder->connectors_active != false);
3870 intel_modeset_check_state(connector->dev);
3873 /* Simple connector->get_hw_state implementation for encoders that support only
3874 * one connector and no cloning and hence the encoder state determines the state
3875 * of the connector. */
3876 bool intel_connector_get_hw_state(struct intel_connector *connector)
3879 struct intel_encoder *encoder = connector->encoder;
3881 return encoder->get_hw_state(encoder, &pipe);
3884 static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
3885 struct intel_crtc_config *pipe_config)
3887 struct drm_i915_private *dev_priv = dev->dev_private;
3888 struct intel_crtc *pipe_B_crtc =
3889 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
3891 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
3892 pipe_name(pipe), pipe_config->fdi_lanes);
3893 if (pipe_config->fdi_lanes > 4) {
3894 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
3895 pipe_name(pipe), pipe_config->fdi_lanes);
3899 if (IS_HASWELL(dev)) {
3900 if (pipe_config->fdi_lanes > 2) {
3901 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
3902 pipe_config->fdi_lanes);
3909 if (INTEL_INFO(dev)->num_pipes == 2)
3912 /* Ivybridge 3 pipe is really complicated */
3917 if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled &&
3918 pipe_config->fdi_lanes > 2) {
3919 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
3920 pipe_name(pipe), pipe_config->fdi_lanes);
3925 if (!pipe_has_enabled_pch(pipe_B_crtc) ||
3926 pipe_B_crtc->config.fdi_lanes <= 2) {
3927 if (pipe_config->fdi_lanes > 2) {
3928 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
3929 pipe_name(pipe), pipe_config->fdi_lanes);
3933 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
3943 static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc,
3944 struct intel_crtc_config *pipe_config)
3946 struct drm_device *dev = intel_crtc->base.dev;
3947 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
3948 int target_clock, lane, link_bw;
3949 bool setup_ok, needs_recompute = false;
3952 /* FDI is a binary signal running at ~2.7GHz, encoding
3953 * each output octet as 10 bits. The actual frequency
3954 * is stored as a divider into a 100MHz clock, and the
3955 * mode pixel clock is stored in units of 1KHz.
3956 * Hence the bw of each lane in terms of the mode signal
3959 link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
3961 if (pipe_config->pixel_target_clock)
3962 target_clock = pipe_config->pixel_target_clock;
3964 target_clock = adjusted_mode->clock;
3966 lane = ironlake_get_lanes_required(target_clock, link_bw,
3967 pipe_config->pipe_bpp);
3969 pipe_config->fdi_lanes = lane;
3971 if (pipe_config->pixel_multiplier > 1)
3972 link_bw *= pipe_config->pixel_multiplier;
3973 intel_link_compute_m_n(pipe_config->pipe_bpp, lane, target_clock,
3974 link_bw, &pipe_config->fdi_m_n);
3976 setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev,
3977 intel_crtc->pipe, pipe_config);
3978 if (!setup_ok && pipe_config->pipe_bpp > 6*3) {
3979 pipe_config->pipe_bpp -= 2*3;
3980 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
3981 pipe_config->pipe_bpp);
3982 needs_recompute = true;
3983 pipe_config->bw_constrained = true;
3988 if (needs_recompute)
3991 return setup_ok ? 0 : -EINVAL;
3994 static int intel_crtc_compute_config(struct drm_crtc *crtc,
3995 struct intel_crtc_config *pipe_config)
3997 struct drm_device *dev = crtc->dev;
3998 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
4000 if (HAS_PCH_SPLIT(dev)) {
4001 /* FDI link clock is fixed at 2.7G */
4002 if (pipe_config->requested_mode.clock * 3
4003 > IRONLAKE_FDI_FREQ * 4)
4007 /* All interlaced capable intel hw wants timings in frames. Note though
4008 * that intel_lvds_mode_fixup does some funny tricks with the crtc
4009 * timings, so we need to be careful not to clobber these.*/
4010 if (!pipe_config->timings_set)
4011 drm_mode_set_crtcinfo(adjusted_mode, 0);
4013 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
4014 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
4016 if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) &&
4017 adjusted_mode->hsync_start == adjusted_mode->hdisplay)
4020 if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) {
4021 pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */
4022 } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) {
4023 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
4025 pipe_config->pipe_bpp = 8*3;
4028 if (pipe_config->has_pch_encoder)
4029 return ironlake_fdi_compute_config(to_intel_crtc(crtc), pipe_config);
4034 static int valleyview_get_display_clock_speed(struct drm_device *dev)
4036 return 400000; /* FIXME */
4039 static int i945_get_display_clock_speed(struct drm_device *dev)
4044 static int i915_get_display_clock_speed(struct drm_device *dev)
4049 static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
4054 static int i915gm_get_display_clock_speed(struct drm_device *dev)
4058 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4060 if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
4063 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4064 case GC_DISPLAY_CLOCK_333_MHZ:
4067 case GC_DISPLAY_CLOCK_190_200_MHZ:
4073 static int i865_get_display_clock_speed(struct drm_device *dev)
4078 static int i855_get_display_clock_speed(struct drm_device *dev)
4081 /* Assume that the hardware is in the high speed state. This
4082 * should be the default.
4084 switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
4085 case GC_CLOCK_133_200:
4086 case GC_CLOCK_100_200:
4088 case GC_CLOCK_166_250:
4090 case GC_CLOCK_100_133:
4094 /* Shouldn't happen */
4098 static int i830_get_display_clock_speed(struct drm_device *dev)
4104 intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den)
4106 while (*num > DATA_LINK_M_N_MASK ||
4107 *den > DATA_LINK_M_N_MASK) {
4113 static void compute_m_n(unsigned int m, unsigned int n,
4114 uint32_t *ret_m, uint32_t *ret_n)
4116 *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
4117 *ret_m = div_u64((uint64_t) m * *ret_n, n);
4118 intel_reduce_m_n_ratio(ret_m, ret_n);
4122 intel_link_compute_m_n(int bits_per_pixel, int nlanes,
4123 int pixel_clock, int link_clock,
4124 struct intel_link_m_n *m_n)
4128 compute_m_n(bits_per_pixel * pixel_clock,
4129 link_clock * nlanes * 8,
4130 &m_n->gmch_m, &m_n->gmch_n);
4132 compute_m_n(pixel_clock, link_clock,
4133 &m_n->link_m, &m_n->link_n);
4136 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
4138 if (i915_panel_use_ssc >= 0)
4139 return i915_panel_use_ssc != 0;
4140 return dev_priv->vbt.lvds_use_ssc
4141 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
4144 static int vlv_get_refclk(struct drm_crtc *crtc)
4146 struct drm_device *dev = crtc->dev;
4147 struct drm_i915_private *dev_priv = dev->dev_private;
4148 int refclk = 27000; /* for DP & HDMI */
4150 return 100000; /* only one validated so far */
4152 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
4154 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
4155 if (intel_panel_use_ssc(dev_priv))
4159 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
4166 static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
4168 struct drm_device *dev = crtc->dev;
4169 struct drm_i915_private *dev_priv = dev->dev_private;
4172 if (IS_VALLEYVIEW(dev)) {
4173 refclk = vlv_get_refclk(crtc);
4174 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
4175 intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
4176 refclk = dev_priv->vbt.lvds_ssc_freq * 1000;
4177 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4179 } else if (!IS_GEN2(dev)) {
4188 static uint32_t pnv_dpll_compute_fp(struct dpll *dpll)
4190 return (1 << dpll->n) << 16 | dpll->m1 << 8 | dpll->m2;
4193 static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll)
4195 return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
4198 static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
4199 intel_clock_t *reduced_clock)
4201 struct drm_device *dev = crtc->base.dev;
4202 struct drm_i915_private *dev_priv = dev->dev_private;
4203 int pipe = crtc->pipe;
4206 if (IS_PINEVIEW(dev)) {
4207 fp = pnv_dpll_compute_fp(&crtc->config.dpll);
4209 fp2 = pnv_dpll_compute_fp(reduced_clock);
4211 fp = i9xx_dpll_compute_fp(&crtc->config.dpll);
4213 fp2 = i9xx_dpll_compute_fp(reduced_clock);
4216 I915_WRITE(FP0(pipe), fp);
4218 crtc->lowfreq_avail = false;
4219 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4220 reduced_clock && i915_powersave) {
4221 I915_WRITE(FP1(pipe), fp2);
4222 crtc->lowfreq_avail = true;
4224 I915_WRITE(FP1(pipe), fp);
4228 static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv)
4233 * PLLB opamp always calibrates to max value of 0x3f, force enable it
4234 * and set it to a reasonable value instead.
4236 reg_val = vlv_dpio_read(dev_priv, DPIO_IREF(1));
4237 reg_val &= 0xffffff00;
4238 reg_val |= 0x00000030;
4239 vlv_dpio_write(dev_priv, DPIO_IREF(1), reg_val);
4241 reg_val = vlv_dpio_read(dev_priv, DPIO_CALIBRATION);
4242 reg_val &= 0x8cffffff;
4243 reg_val = 0x8c000000;
4244 vlv_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val);
4246 reg_val = vlv_dpio_read(dev_priv, DPIO_IREF(1));
4247 reg_val &= 0xffffff00;
4248 vlv_dpio_write(dev_priv, DPIO_IREF(1), reg_val);
4250 reg_val = vlv_dpio_read(dev_priv, DPIO_CALIBRATION);
4251 reg_val &= 0x00ffffff;
4252 reg_val |= 0xb0000000;
4253 vlv_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val);
4256 static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
4257 struct intel_link_m_n *m_n)
4259 struct drm_device *dev = crtc->base.dev;
4260 struct drm_i915_private *dev_priv = dev->dev_private;
4261 int pipe = crtc->pipe;
4263 I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4264 I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n);
4265 I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m);
4266 I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n);
4269 static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
4270 struct intel_link_m_n *m_n)
4272 struct drm_device *dev = crtc->base.dev;
4273 struct drm_i915_private *dev_priv = dev->dev_private;
4274 int pipe = crtc->pipe;
4275 enum transcoder transcoder = crtc->config.cpu_transcoder;
4277 if (INTEL_INFO(dev)->gen >= 5) {
4278 I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
4279 I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
4280 I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
4281 I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
4283 I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4284 I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n);
4285 I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m);
4286 I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n);
4290 static void intel_dp_set_m_n(struct intel_crtc *crtc)
4292 if (crtc->config.has_pch_encoder)
4293 intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4295 intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4298 static void vlv_update_pll(struct intel_crtc *crtc)
4300 struct drm_device *dev = crtc->base.dev;
4301 struct drm_i915_private *dev_priv = dev->dev_private;
4302 struct drm_display_mode *adjusted_mode =
4303 &crtc->config.adjusted_mode;
4304 struct intel_encoder *encoder;
4305 int pipe = crtc->pipe;
4307 u32 bestn, bestm1, bestm2, bestp1, bestp2;
4309 u32 coreclk, reg_val, dpll_md;
4311 mutex_lock(&dev_priv->dpio_lock);
4313 is_hdmi = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
4315 bestn = crtc->config.dpll.n;
4316 bestm1 = crtc->config.dpll.m1;
4317 bestm2 = crtc->config.dpll.m2;
4318 bestp1 = crtc->config.dpll.p1;
4319 bestp2 = crtc->config.dpll.p2;
4321 /* See eDP HDMI DPIO driver vbios notes doc */
4323 /* PLL B needs special handling */
4325 vlv_pllb_recal_opamp(dev_priv);
4327 /* Set up Tx target for periodic Rcomp update */
4328 vlv_dpio_write(dev_priv, DPIO_IREF_BCAST, 0x0100000f);
4330 /* Disable target IRef on PLL */
4331 reg_val = vlv_dpio_read(dev_priv, DPIO_IREF_CTL(pipe));
4332 reg_val &= 0x00ffffff;
4333 vlv_dpio_write(dev_priv, DPIO_IREF_CTL(pipe), reg_val);
4335 /* Disable fast lock */
4336 vlv_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x610);
4338 /* Set idtafcrecal before PLL is enabled */
4339 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
4340 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
4341 mdiv |= ((bestn << DPIO_N_SHIFT));
4342 mdiv |= (1 << DPIO_K_SHIFT);
4345 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
4346 * but we don't support that).
4347 * Note: don't use the DAC post divider as it seems unstable.
4349 mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
4350 vlv_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
4352 mdiv |= DPIO_ENABLE_CALIBRATION;
4353 vlv_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
4355 /* Set HBR and RBR LPF coefficients */
4356 if (adjusted_mode->clock == 162000 ||
4357 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI))
4358 vlv_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe),
4361 vlv_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe),
4364 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
4365 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) {
4366 /* Use SSC source */
4368 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4371 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4373 } else { /* HDMI or VGA */
4374 /* Use bend source */
4376 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4379 vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe),
4383 coreclk = vlv_dpio_read(dev_priv, DPIO_CORE_CLK(pipe));
4384 coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
4385 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) ||
4386 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP))
4387 coreclk |= 0x01000000;
4388 vlv_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), coreclk);
4390 vlv_dpio_write(dev_priv, DPIO_PLL_CML(pipe), 0x87871000);
4392 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
4393 if (encoder->pre_pll_enable)
4394 encoder->pre_pll_enable(encoder);
4396 /* Enable DPIO clock input */
4397 dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
4398 DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
4400 dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
4402 dpll |= DPLL_VCO_ENABLE;
4403 I915_WRITE(DPLL(pipe), dpll);
4404 POSTING_READ(DPLL(pipe));
4407 if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
4408 DRM_ERROR("DPLL %d failed to lock\n", pipe);
4411 if (crtc->config.pixel_multiplier > 1) {
4412 dpll_md = (crtc->config.pixel_multiplier - 1)
4413 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4415 I915_WRITE(DPLL_MD(pipe), dpll_md);
4416 POSTING_READ(DPLL_MD(pipe));
4418 if (crtc->config.has_dp_encoder)
4419 intel_dp_set_m_n(crtc);
4421 mutex_unlock(&dev_priv->dpio_lock);
4424 static void i9xx_update_pll(struct intel_crtc *crtc,
4425 intel_clock_t *reduced_clock,
4428 struct drm_device *dev = crtc->base.dev;
4429 struct drm_i915_private *dev_priv = dev->dev_private;
4430 struct intel_encoder *encoder;
4431 int pipe = crtc->pipe;
4434 struct dpll *clock = &crtc->config.dpll;
4436 i9xx_update_pll_dividers(crtc, reduced_clock);
4438 is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
4439 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
4441 dpll = DPLL_VGA_MODE_DIS;
4443 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS))
4444 dpll |= DPLLB_MODE_LVDS;
4446 dpll |= DPLLB_MODE_DAC_SERIAL;
4448 if ((crtc->config.pixel_multiplier > 1) &&
4449 (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))) {
4450 dpll |= (crtc->config.pixel_multiplier - 1)
4451 << SDVO_MULTIPLIER_SHIFT_HIRES;
4455 dpll |= DPLL_DVO_HIGH_SPEED;
4457 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
4458 dpll |= DPLL_DVO_HIGH_SPEED;
4460 /* compute bitmask from p1 value */
4461 if (IS_PINEVIEW(dev))
4462 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
4464 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4465 if (IS_G4X(dev) && reduced_clock)
4466 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
4468 switch (clock->p2) {
4470 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
4473 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
4476 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
4479 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
4482 if (INTEL_INFO(dev)->gen >= 4)
4483 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
4485 if (crtc->config.sdvo_tv_clock)
4486 dpll |= PLL_REF_INPUT_TVCLKINBC;
4487 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4488 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4489 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4491 dpll |= PLL_REF_INPUT_DREFCLK;
4493 dpll |= DPLL_VCO_ENABLE;
4494 I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
4495 POSTING_READ(DPLL(pipe));
4498 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
4499 if (encoder->pre_pll_enable)
4500 encoder->pre_pll_enable(encoder);
4502 if (crtc->config.has_dp_encoder)
4503 intel_dp_set_m_n(crtc);
4505 I915_WRITE(DPLL(pipe), dpll);
4507 /* Wait for the clocks to stabilize. */
4508 POSTING_READ(DPLL(pipe));
4511 if (INTEL_INFO(dev)->gen >= 4) {
4513 if (crtc->config.pixel_multiplier > 1) {
4514 dpll_md = (crtc->config.pixel_multiplier - 1)
4515 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4517 I915_WRITE(DPLL_MD(pipe), dpll_md);
4519 /* The pixel multiplier can only be updated once the
4520 * DPLL is enabled and the clocks are stable.
4522 * So write it again.
4524 I915_WRITE(DPLL(pipe), dpll);
4528 static void i8xx_update_pll(struct intel_crtc *crtc,
4529 struct drm_display_mode *adjusted_mode,
4530 intel_clock_t *reduced_clock,
4533 struct drm_device *dev = crtc->base.dev;
4534 struct drm_i915_private *dev_priv = dev->dev_private;
4535 struct intel_encoder *encoder;
4536 int pipe = crtc->pipe;
4538 struct dpll *clock = &crtc->config.dpll;
4540 i9xx_update_pll_dividers(crtc, reduced_clock);
4542 dpll = DPLL_VGA_MODE_DIS;
4544 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
4545 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4548 dpll |= PLL_P1_DIVIDE_BY_TWO;
4550 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4552 dpll |= PLL_P2_DIVIDE_BY_4;
4555 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4556 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4557 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4559 dpll |= PLL_REF_INPUT_DREFCLK;
4561 dpll |= DPLL_VCO_ENABLE;
4562 I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
4563 POSTING_READ(DPLL(pipe));
4566 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
4567 if (encoder->pre_pll_enable)
4568 encoder->pre_pll_enable(encoder);
4570 I915_WRITE(DPLL(pipe), dpll);
4572 /* Wait for the clocks to stabilize. */
4573 POSTING_READ(DPLL(pipe));
4576 /* The pixel multiplier can only be updated once the
4577 * DPLL is enabled and the clocks are stable.
4579 * So write it again.
4581 I915_WRITE(DPLL(pipe), dpll);
4584 static void intel_set_pipe_timings(struct intel_crtc *intel_crtc,
4585 struct drm_display_mode *mode,
4586 struct drm_display_mode *adjusted_mode)
4588 struct drm_device *dev = intel_crtc->base.dev;
4589 struct drm_i915_private *dev_priv = dev->dev_private;
4590 enum pipe pipe = intel_crtc->pipe;
4591 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
4592 uint32_t vsyncshift, crtc_vtotal, crtc_vblank_end;
4594 /* We need to be careful not to changed the adjusted mode, for otherwise
4595 * the hw state checker will get angry at the mismatch. */
4596 crtc_vtotal = adjusted_mode->crtc_vtotal;
4597 crtc_vblank_end = adjusted_mode->crtc_vblank_end;
4599 if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
4600 /* the chip adds 2 halflines automatically */
4602 crtc_vblank_end -= 1;
4603 vsyncshift = adjusted_mode->crtc_hsync_start
4604 - adjusted_mode->crtc_htotal / 2;
4609 if (INTEL_INFO(dev)->gen > 3)
4610 I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
4612 I915_WRITE(HTOTAL(cpu_transcoder),
4613 (adjusted_mode->crtc_hdisplay - 1) |
4614 ((adjusted_mode->crtc_htotal - 1) << 16));
4615 I915_WRITE(HBLANK(cpu_transcoder),
4616 (adjusted_mode->crtc_hblank_start - 1) |
4617 ((adjusted_mode->crtc_hblank_end - 1) << 16));
4618 I915_WRITE(HSYNC(cpu_transcoder),
4619 (adjusted_mode->crtc_hsync_start - 1) |
4620 ((adjusted_mode->crtc_hsync_end - 1) << 16));
4622 I915_WRITE(VTOTAL(cpu_transcoder),
4623 (adjusted_mode->crtc_vdisplay - 1) |
4624 ((crtc_vtotal - 1) << 16));
4625 I915_WRITE(VBLANK(cpu_transcoder),
4626 (adjusted_mode->crtc_vblank_start - 1) |
4627 ((crtc_vblank_end - 1) << 16));
4628 I915_WRITE(VSYNC(cpu_transcoder),
4629 (adjusted_mode->crtc_vsync_start - 1) |
4630 ((adjusted_mode->crtc_vsync_end - 1) << 16));
4632 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
4633 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
4634 * documented on the DDI_FUNC_CTL register description, EDP Input Select
4636 if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP &&
4637 (pipe == PIPE_B || pipe == PIPE_C))
4638 I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
4640 /* pipesrc controls the size that is scaled from, which should
4641 * always be the user's requested size.
4643 I915_WRITE(PIPESRC(pipe),
4644 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
4647 static void intel_get_pipe_timings(struct intel_crtc *crtc,
4648 struct intel_crtc_config *pipe_config)
4650 struct drm_device *dev = crtc->base.dev;
4651 struct drm_i915_private *dev_priv = dev->dev_private;
4652 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
4655 tmp = I915_READ(HTOTAL(cpu_transcoder));
4656 pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1;
4657 pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1;
4658 tmp = I915_READ(HBLANK(cpu_transcoder));
4659 pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1;
4660 pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1;
4661 tmp = I915_READ(HSYNC(cpu_transcoder));
4662 pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1;
4663 pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1;
4665 tmp = I915_READ(VTOTAL(cpu_transcoder));
4666 pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1;
4667 pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1;
4668 tmp = I915_READ(VBLANK(cpu_transcoder));
4669 pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1;
4670 pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1;
4671 tmp = I915_READ(VSYNC(cpu_transcoder));
4672 pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1;
4673 pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1;
4675 if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) {
4676 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE;
4677 pipe_config->adjusted_mode.crtc_vtotal += 1;
4678 pipe_config->adjusted_mode.crtc_vblank_end += 1;
4681 tmp = I915_READ(PIPESRC(crtc->pipe));
4682 pipe_config->requested_mode.vdisplay = (tmp & 0xffff) + 1;
4683 pipe_config->requested_mode.hdisplay = ((tmp >> 16) & 0xffff) + 1;
4686 static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
4688 struct drm_device *dev = intel_crtc->base.dev;
4689 struct drm_i915_private *dev_priv = dev->dev_private;
4692 pipeconf = I915_READ(PIPECONF(intel_crtc->pipe));
4694 if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) {
4695 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4698 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4701 if (intel_crtc->config.requested_mode.clock >
4702 dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
4703 pipeconf |= PIPECONF_DOUBLE_WIDE;
4705 pipeconf &= ~PIPECONF_DOUBLE_WIDE;
4708 /* only g4x and later have fancy bpc/dither controls */
4709 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
4710 pipeconf &= ~(PIPECONF_BPC_MASK |
4711 PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
4713 /* Bspec claims that we can't use dithering for 30bpp pipes. */
4714 if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30)
4715 pipeconf |= PIPECONF_DITHER_EN |
4716 PIPECONF_DITHER_TYPE_SP;
4718 switch (intel_crtc->config.pipe_bpp) {
4720 pipeconf |= PIPECONF_6BPC;
4723 pipeconf |= PIPECONF_8BPC;
4726 pipeconf |= PIPECONF_10BPC;
4729 /* Case prevented by intel_choose_pipe_bpp_dither. */
4734 if (HAS_PIPE_CXSR(dev)) {
4735 if (intel_crtc->lowfreq_avail) {
4736 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4737 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
4739 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
4740 pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
4744 pipeconf &= ~PIPECONF_INTERLACE_MASK;
4745 if (!IS_GEN2(dev) &&
4746 intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
4747 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
4749 pipeconf |= PIPECONF_PROGRESSIVE;
4751 if (IS_VALLEYVIEW(dev)) {
4752 if (intel_crtc->config.limited_color_range)
4753 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
4755 pipeconf &= ~PIPECONF_COLOR_RANGE_SELECT;
4758 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
4759 POSTING_READ(PIPECONF(intel_crtc->pipe));
4762 static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
4764 struct drm_framebuffer *fb)
4766 struct drm_device *dev = crtc->dev;
4767 struct drm_i915_private *dev_priv = dev->dev_private;
4768 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4769 struct drm_display_mode *adjusted_mode =
4770 &intel_crtc->config.adjusted_mode;
4771 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
4772 int pipe = intel_crtc->pipe;
4773 int plane = intel_crtc->plane;
4774 int refclk, num_connectors = 0;
4775 intel_clock_t clock, reduced_clock;
4777 bool ok, has_reduced_clock = false;
4778 bool is_lvds = false;
4779 struct intel_encoder *encoder;
4780 const intel_limit_t *limit;
4783 for_each_encoder_on_crtc(dev, crtc, encoder) {
4784 switch (encoder->type) {
4785 case INTEL_OUTPUT_LVDS:
4793 refclk = i9xx_get_refclk(crtc, num_connectors);
4796 * Returns a set of divisors for the desired target clock with the given
4797 * refclk, or FALSE. The returned values represent the clock equation:
4798 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4800 limit = intel_limit(crtc, refclk);
4801 ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL,
4804 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4808 /* Ensure that the cursor is valid for the new mode before changing... */
4809 intel_crtc_update_cursor(crtc, true);
4811 if (is_lvds && dev_priv->lvds_downclock_avail) {
4813 * Ensure we match the reduced clock's P to the target clock.
4814 * If the clocks don't match, we can't switch the display clock
4815 * by using the FP0/FP1. In such case we will disable the LVDS
4816 * downclock feature.
4818 has_reduced_clock = limit->find_pll(limit, crtc,
4819 dev_priv->lvds_downclock,
4824 /* Compat-code for transition, will disappear. */
4825 if (!intel_crtc->config.clock_set) {
4826 intel_crtc->config.dpll.n = clock.n;
4827 intel_crtc->config.dpll.m1 = clock.m1;
4828 intel_crtc->config.dpll.m2 = clock.m2;
4829 intel_crtc->config.dpll.p1 = clock.p1;
4830 intel_crtc->config.dpll.p2 = clock.p2;
4834 i8xx_update_pll(intel_crtc, adjusted_mode,
4835 has_reduced_clock ? &reduced_clock : NULL,
4837 else if (IS_VALLEYVIEW(dev))
4838 vlv_update_pll(intel_crtc);
4840 i9xx_update_pll(intel_crtc,
4841 has_reduced_clock ? &reduced_clock : NULL,
4844 /* Set up the display plane register */
4845 dspcntr = DISPPLANE_GAMMA_ENABLE;
4847 if (!IS_VALLEYVIEW(dev)) {
4849 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
4851 dspcntr |= DISPPLANE_SEL_PIPE_B;
4854 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
4856 /* pipesrc and dspsize control the size that is scaled from,
4857 * which should always be the user's requested size.
4859 I915_WRITE(DSPSIZE(plane),
4860 ((mode->vdisplay - 1) << 16) |
4861 (mode->hdisplay - 1));
4862 I915_WRITE(DSPPOS(plane), 0);
4864 i9xx_set_pipeconf(intel_crtc);
4866 I915_WRITE(DSPCNTR(plane), dspcntr);
4867 POSTING_READ(DSPCNTR(plane));
4869 ret = intel_pipe_set_base(crtc, x, y, fb);
4871 intel_update_watermarks(dev);
4876 static void i9xx_get_pfit_config(struct intel_crtc *crtc,
4877 struct intel_crtc_config *pipe_config)
4879 struct drm_device *dev = crtc->base.dev;
4880 struct drm_i915_private *dev_priv = dev->dev_private;
4883 tmp = I915_READ(PFIT_CONTROL);
4885 if (INTEL_INFO(dev)->gen < 4) {
4886 if (crtc->pipe != PIPE_B)
4889 /* gen2/3 store dither state in pfit control, needs to match */
4890 pipe_config->gmch_pfit.control = tmp & PANEL_8TO6_DITHER_ENABLE;
4892 if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT))
4896 if (!(tmp & PFIT_ENABLE))
4899 pipe_config->gmch_pfit.control = I915_READ(PFIT_CONTROL);
4900 pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS);
4901 if (INTEL_INFO(dev)->gen < 5)
4902 pipe_config->gmch_pfit.lvds_border_bits =
4903 I915_READ(LVDS) & LVDS_BORDER_ENABLE;
4906 static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
4907 struct intel_crtc_config *pipe_config)
4909 struct drm_device *dev = crtc->base.dev;
4910 struct drm_i915_private *dev_priv = dev->dev_private;
4913 pipe_config->cpu_transcoder = crtc->pipe;
4915 tmp = I915_READ(PIPECONF(crtc->pipe));
4916 if (!(tmp & PIPECONF_ENABLE))
4919 intel_get_pipe_timings(crtc, pipe_config);
4921 i9xx_get_pfit_config(crtc, pipe_config);
4926 static void ironlake_init_pch_refclk(struct drm_device *dev)
4928 struct drm_i915_private *dev_priv = dev->dev_private;
4929 struct drm_mode_config *mode_config = &dev->mode_config;
4930 struct intel_encoder *encoder;
4932 bool has_lvds = false;
4933 bool has_cpu_edp = false;
4934 bool has_panel = false;
4935 bool has_ck505 = false;
4936 bool can_ssc = false;
4938 /* We need to take the global config into account */
4939 list_for_each_entry(encoder, &mode_config->encoder_list,
4941 switch (encoder->type) {
4942 case INTEL_OUTPUT_LVDS:
4946 case INTEL_OUTPUT_EDP:
4948 if (enc_to_dig_port(&encoder->base)->port == PORT_A)
4954 if (HAS_PCH_IBX(dev)) {
4955 has_ck505 = dev_priv->vbt.display_clock_mode;
4956 can_ssc = has_ck505;
4962 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
4963 has_panel, has_lvds, has_ck505);
4965 /* Ironlake: try to setup display ref clock before DPLL
4966 * enabling. This is only under driver's control after
4967 * PCH B stepping, previous chipset stepping should be
4968 * ignoring this setting.
4970 val = I915_READ(PCH_DREF_CONTROL);
4972 /* As we must carefully and slowly disable/enable each source in turn,
4973 * compute the final state we want first and check if we need to
4974 * make any changes at all.
4977 final &= ~DREF_NONSPREAD_SOURCE_MASK;
4979 final |= DREF_NONSPREAD_CK505_ENABLE;
4981 final |= DREF_NONSPREAD_SOURCE_ENABLE;
4983 final &= ~DREF_SSC_SOURCE_MASK;
4984 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
4985 final &= ~DREF_SSC1_ENABLE;
4988 final |= DREF_SSC_SOURCE_ENABLE;
4990 if (intel_panel_use_ssc(dev_priv) && can_ssc)
4991 final |= DREF_SSC1_ENABLE;
4994 if (intel_panel_use_ssc(dev_priv) && can_ssc)
4995 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
4997 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
4999 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5001 final |= DREF_SSC_SOURCE_DISABLE;
5002 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5008 /* Always enable nonspread source */
5009 val &= ~DREF_NONSPREAD_SOURCE_MASK;
5012 val |= DREF_NONSPREAD_CK505_ENABLE;
5014 val |= DREF_NONSPREAD_SOURCE_ENABLE;
5017 val &= ~DREF_SSC_SOURCE_MASK;
5018 val |= DREF_SSC_SOURCE_ENABLE;
5020 /* SSC must be turned on before enabling the CPU output */
5021 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
5022 DRM_DEBUG_KMS("Using SSC on panel\n");
5023 val |= DREF_SSC1_ENABLE;
5025 val &= ~DREF_SSC1_ENABLE;
5027 /* Get SSC going before enabling the outputs */
5028 I915_WRITE(PCH_DREF_CONTROL, val);
5029 POSTING_READ(PCH_DREF_CONTROL);
5032 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5034 /* Enable CPU source on CPU attached eDP */
5036 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
5037 DRM_DEBUG_KMS("Using SSC on eDP\n");
5038 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5041 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5043 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5045 I915_WRITE(PCH_DREF_CONTROL, val);
5046 POSTING_READ(PCH_DREF_CONTROL);
5049 DRM_DEBUG_KMS("Disabling SSC entirely\n");
5051 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5053 /* Turn off CPU output */
5054 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5056 I915_WRITE(PCH_DREF_CONTROL, val);
5057 POSTING_READ(PCH_DREF_CONTROL);
5060 /* Turn off the SSC source */
5061 val &= ~DREF_SSC_SOURCE_MASK;
5062 val |= DREF_SSC_SOURCE_DISABLE;
5065 val &= ~DREF_SSC1_ENABLE;
5067 I915_WRITE(PCH_DREF_CONTROL, val);
5068 POSTING_READ(PCH_DREF_CONTROL);
5072 BUG_ON(val != final);
5075 /* Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O. */
5076 static void lpt_init_pch_refclk(struct drm_device *dev)
5078 struct drm_i915_private *dev_priv = dev->dev_private;
5079 struct drm_mode_config *mode_config = &dev->mode_config;
5080 struct intel_encoder *encoder;
5081 bool has_vga = false;
5082 bool is_sdv = false;
5085 list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
5086 switch (encoder->type) {
5087 case INTEL_OUTPUT_ANALOG:
5096 mutex_lock(&dev_priv->dpio_lock);
5098 /* XXX: Rip out SDV support once Haswell ships for real. */
5099 if (IS_HASWELL(dev) && (dev->pci_device & 0xFF00) == 0x0C00)
5102 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5103 tmp &= ~SBI_SSCCTL_DISABLE;
5104 tmp |= SBI_SSCCTL_PATHALT;
5105 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5109 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5110 tmp &= ~SBI_SSCCTL_PATHALT;
5111 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5114 tmp = I915_READ(SOUTH_CHICKEN2);
5115 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
5116 I915_WRITE(SOUTH_CHICKEN2, tmp);
5118 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
5119 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
5120 DRM_ERROR("FDI mPHY reset assert timeout\n");
5122 tmp = I915_READ(SOUTH_CHICKEN2);
5123 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
5124 I915_WRITE(SOUTH_CHICKEN2, tmp);
5126 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
5127 FDI_MPHY_IOSFSB_RESET_STATUS) == 0,
5129 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
5132 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
5133 tmp &= ~(0xFF << 24);
5134 tmp |= (0x12 << 24);
5135 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
5138 tmp = intel_sbi_read(dev_priv, 0x800C, SBI_MPHY);
5140 intel_sbi_write(dev_priv, 0x800C, tmp, SBI_MPHY);
5143 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
5145 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
5147 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
5149 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
5152 tmp = intel_sbi_read(dev_priv, 0x2038, SBI_MPHY);
5153 tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16);
5154 intel_sbi_write(dev_priv, 0x2038, tmp, SBI_MPHY);
5156 tmp = intel_sbi_read(dev_priv, 0x2138, SBI_MPHY);
5157 tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16);
5158 intel_sbi_write(dev_priv, 0x2138, tmp, SBI_MPHY);
5160 tmp = intel_sbi_read(dev_priv, 0x203C, SBI_MPHY);
5162 intel_sbi_write(dev_priv, 0x203C, tmp, SBI_MPHY);
5164 tmp = intel_sbi_read(dev_priv, 0x213C, SBI_MPHY);
5166 intel_sbi_write(dev_priv, 0x213C, tmp, SBI_MPHY);
5169 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
5170 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5171 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
5173 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
5174 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5175 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
5178 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
5181 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
5183 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
5186 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
5189 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
5192 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
5194 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
5197 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
5199 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
5200 tmp &= ~(0xFF << 16);
5201 tmp |= (0x1C << 16);
5202 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
5204 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
5205 tmp &= ~(0xFF << 16);
5206 tmp |= (0x1C << 16);
5207 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
5210 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
5212 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
5214 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
5216 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
5218 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
5219 tmp &= ~(0xF << 28);
5221 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
5223 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
5224 tmp &= ~(0xF << 28);
5226 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
5229 /* ULT uses SBI_GEN0, but ULT doesn't have VGA, so we don't care. */
5230 tmp = intel_sbi_read(dev_priv, SBI_DBUFF0, SBI_ICLK);
5231 tmp |= SBI_DBUFF0_ENABLE;
5232 intel_sbi_write(dev_priv, SBI_DBUFF0, tmp, SBI_ICLK);
5234 mutex_unlock(&dev_priv->dpio_lock);
5238 * Initialize reference clocks when the driver loads
5240 void intel_init_pch_refclk(struct drm_device *dev)
5242 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
5243 ironlake_init_pch_refclk(dev);
5244 else if (HAS_PCH_LPT(dev))
5245 lpt_init_pch_refclk(dev);
5248 static int ironlake_get_refclk(struct drm_crtc *crtc)
5250 struct drm_device *dev = crtc->dev;
5251 struct drm_i915_private *dev_priv = dev->dev_private;
5252 struct intel_encoder *encoder;
5253 int num_connectors = 0;
5254 bool is_lvds = false;
5256 for_each_encoder_on_crtc(dev, crtc, encoder) {
5257 switch (encoder->type) {
5258 case INTEL_OUTPUT_LVDS:
5265 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
5266 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
5267 dev_priv->vbt.lvds_ssc_freq);
5268 return dev_priv->vbt.lvds_ssc_freq * 1000;
5274 static void ironlake_set_pipeconf(struct drm_crtc *crtc)
5276 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5277 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5278 int pipe = intel_crtc->pipe;
5281 val = I915_READ(PIPECONF(pipe));
5283 val &= ~PIPECONF_BPC_MASK;
5284 switch (intel_crtc->config.pipe_bpp) {
5286 val |= PIPECONF_6BPC;
5289 val |= PIPECONF_8BPC;
5292 val |= PIPECONF_10BPC;
5295 val |= PIPECONF_12BPC;
5298 /* Case prevented by intel_choose_pipe_bpp_dither. */
5302 val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
5303 if (intel_crtc->config.dither)
5304 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5306 val &= ~PIPECONF_INTERLACE_MASK;
5307 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
5308 val |= PIPECONF_INTERLACED_ILK;
5310 val |= PIPECONF_PROGRESSIVE;
5312 if (intel_crtc->config.limited_color_range)
5313 val |= PIPECONF_COLOR_RANGE_SELECT;
5315 val &= ~PIPECONF_COLOR_RANGE_SELECT;
5317 I915_WRITE(PIPECONF(pipe), val);
5318 POSTING_READ(PIPECONF(pipe));
5322 * Set up the pipe CSC unit.
5324 * Currently only full range RGB to limited range RGB conversion
5325 * is supported, but eventually this should handle various
5326 * RGB<->YCbCr scenarios as well.
5328 static void intel_set_pipe_csc(struct drm_crtc *crtc)
5330 struct drm_device *dev = crtc->dev;
5331 struct drm_i915_private *dev_priv = dev->dev_private;
5332 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5333 int pipe = intel_crtc->pipe;
5334 uint16_t coeff = 0x7800; /* 1.0 */
5337 * TODO: Check what kind of values actually come out of the pipe
5338 * with these coeff/postoff values and adjust to get the best
5339 * accuracy. Perhaps we even need to take the bpc value into
5343 if (intel_crtc->config.limited_color_range)
5344 coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5347 * GY/GU and RY/RU should be the other way around according
5348 * to BSpec, but reality doesn't agree. Just set them up in
5349 * a way that results in the correct picture.
5351 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
5352 I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
5354 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
5355 I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
5357 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
5358 I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
5360 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
5361 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
5362 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
5364 if (INTEL_INFO(dev)->gen > 6) {
5365 uint16_t postoff = 0;
5367 if (intel_crtc->config.limited_color_range)
5368 postoff = (16 * (1 << 13) / 255) & 0x1fff;
5370 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
5371 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
5372 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
5374 I915_WRITE(PIPE_CSC_MODE(pipe), 0);
5376 uint32_t mode = CSC_MODE_YUV_TO_RGB;
5378 if (intel_crtc->config.limited_color_range)
5379 mode |= CSC_BLACK_SCREEN_OFFSET;
5381 I915_WRITE(PIPE_CSC_MODE(pipe), mode);
5385 static void haswell_set_pipeconf(struct drm_crtc *crtc)
5387 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5388 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5389 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
5392 val = I915_READ(PIPECONF(cpu_transcoder));
5394 val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
5395 if (intel_crtc->config.dither)
5396 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5398 val &= ~PIPECONF_INTERLACE_MASK_HSW;
5399 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
5400 val |= PIPECONF_INTERLACED_ILK;
5402 val |= PIPECONF_PROGRESSIVE;
5404 I915_WRITE(PIPECONF(cpu_transcoder), val);
5405 POSTING_READ(PIPECONF(cpu_transcoder));
5408 static bool ironlake_compute_clocks(struct drm_crtc *crtc,
5409 struct drm_display_mode *adjusted_mode,
5410 intel_clock_t *clock,
5411 bool *has_reduced_clock,
5412 intel_clock_t *reduced_clock)
5414 struct drm_device *dev = crtc->dev;
5415 struct drm_i915_private *dev_priv = dev->dev_private;
5416 struct intel_encoder *intel_encoder;
5418 const intel_limit_t *limit;
5419 bool ret, is_lvds = false;
5421 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5422 switch (intel_encoder->type) {
5423 case INTEL_OUTPUT_LVDS:
5429 refclk = ironlake_get_refclk(crtc);
5432 * Returns a set of divisors for the desired target clock with the given
5433 * refclk, or FALSE. The returned values represent the clock equation:
5434 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
5436 limit = intel_limit(crtc, refclk);
5437 ret = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL,
5442 if (is_lvds && dev_priv->lvds_downclock_avail) {
5444 * Ensure we match the reduced clock's P to the target clock.
5445 * If the clocks don't match, we can't switch the display clock
5446 * by using the FP0/FP1. In such case we will disable the LVDS
5447 * downclock feature.
5449 *has_reduced_clock = limit->find_pll(limit, crtc,
5450 dev_priv->lvds_downclock,
5459 static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
5461 struct drm_i915_private *dev_priv = dev->dev_private;
5464 temp = I915_READ(SOUTH_CHICKEN1);
5465 if (temp & FDI_BC_BIFURCATION_SELECT)
5468 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
5469 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
5471 temp |= FDI_BC_BIFURCATION_SELECT;
5472 DRM_DEBUG_KMS("enabling fdi C rx\n");
5473 I915_WRITE(SOUTH_CHICKEN1, temp);
5474 POSTING_READ(SOUTH_CHICKEN1);
5477 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
5479 struct drm_device *dev = intel_crtc->base.dev;
5480 struct drm_i915_private *dev_priv = dev->dev_private;
5482 switch (intel_crtc->pipe) {
5486 if (intel_crtc->config.fdi_lanes > 2)
5487 WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
5489 cpt_enable_fdi_bc_bifurcation(dev);
5493 cpt_enable_fdi_bc_bifurcation(dev);
5501 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
5504 * Account for spread spectrum to avoid
5505 * oversubscribing the link. Max center spread
5506 * is 2.5%; use 5% for safety's sake.
5508 u32 bps = target_clock * bpp * 21 / 20;
5509 return bps / (link_bw * 8) + 1;
5512 static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
5514 return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
5517 static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
5519 intel_clock_t *reduced_clock, u32 *fp2)
5521 struct drm_crtc *crtc = &intel_crtc->base;
5522 struct drm_device *dev = crtc->dev;
5523 struct drm_i915_private *dev_priv = dev->dev_private;
5524 struct intel_encoder *intel_encoder;
5526 int factor, num_connectors = 0;
5527 bool is_lvds = false, is_sdvo = false;
5529 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5530 switch (intel_encoder->type) {
5531 case INTEL_OUTPUT_LVDS:
5534 case INTEL_OUTPUT_SDVO:
5535 case INTEL_OUTPUT_HDMI:
5543 /* Enable autotuning of the PLL clock (if permissible) */
5546 if ((intel_panel_use_ssc(dev_priv) &&
5547 dev_priv->vbt.lvds_ssc_freq == 100) ||
5548 (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
5550 } else if (intel_crtc->config.sdvo_tv_clock)
5553 if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor))
5556 if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
5562 dpll |= DPLLB_MODE_LVDS;
5564 dpll |= DPLLB_MODE_DAC_SERIAL;
5566 if (intel_crtc->config.pixel_multiplier > 1) {
5567 dpll |= (intel_crtc->config.pixel_multiplier - 1)
5568 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
5572 dpll |= DPLL_DVO_HIGH_SPEED;
5573 if (intel_crtc->config.has_dp_encoder)
5574 dpll |= DPLL_DVO_HIGH_SPEED;
5576 /* compute bitmask from p1 value */
5577 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
5579 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
5581 switch (intel_crtc->config.dpll.p2) {
5583 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
5586 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
5589 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
5592 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
5596 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
5597 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
5599 dpll |= PLL_REF_INPUT_DREFCLK;
5604 static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
5606 struct drm_framebuffer *fb)
5608 struct drm_device *dev = crtc->dev;
5609 struct drm_i915_private *dev_priv = dev->dev_private;
5610 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5611 struct drm_display_mode *adjusted_mode =
5612 &intel_crtc->config.adjusted_mode;
5613 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
5614 int pipe = intel_crtc->pipe;
5615 int plane = intel_crtc->plane;
5616 int num_connectors = 0;
5617 intel_clock_t clock, reduced_clock;
5618 u32 dpll = 0, fp = 0, fp2 = 0;
5619 bool ok, has_reduced_clock = false;
5620 bool is_lvds = false;
5621 struct intel_encoder *encoder;
5624 for_each_encoder_on_crtc(dev, crtc, encoder) {
5625 switch (encoder->type) {
5626 case INTEL_OUTPUT_LVDS:
5634 WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
5635 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
5637 ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock,
5638 &has_reduced_clock, &reduced_clock);
5640 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5643 /* Compat-code for transition, will disappear. */
5644 if (!intel_crtc->config.clock_set) {
5645 intel_crtc->config.dpll.n = clock.n;
5646 intel_crtc->config.dpll.m1 = clock.m1;
5647 intel_crtc->config.dpll.m2 = clock.m2;
5648 intel_crtc->config.dpll.p1 = clock.p1;
5649 intel_crtc->config.dpll.p2 = clock.p2;
5652 /* Ensure that the cursor is valid for the new mode before changing... */
5653 intel_crtc_update_cursor(crtc, true);
5655 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
5656 if (intel_crtc->config.has_pch_encoder) {
5657 struct intel_pch_pll *pll;
5659 fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
5660 if (has_reduced_clock)
5661 fp2 = i9xx_dpll_compute_fp(&reduced_clock);
5663 dpll = ironlake_compute_dpll(intel_crtc,
5664 &fp, &reduced_clock,
5665 has_reduced_clock ? &fp2 : NULL);
5667 pll = intel_get_pch_pll(intel_crtc, dpll, fp);
5669 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
5674 intel_put_pch_pll(intel_crtc);
5676 if (intel_crtc->config.has_dp_encoder)
5677 intel_dp_set_m_n(intel_crtc);
5679 for_each_encoder_on_crtc(dev, crtc, encoder)
5680 if (encoder->pre_pll_enable)
5681 encoder->pre_pll_enable(encoder);
5683 if (intel_crtc->pch_pll) {
5684 I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll);
5686 /* Wait for the clocks to stabilize. */
5687 POSTING_READ(intel_crtc->pch_pll->pll_reg);
5690 /* The pixel multiplier can only be updated once the
5691 * DPLL is enabled and the clocks are stable.
5693 * So write it again.
5695 I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll);
5698 intel_crtc->lowfreq_avail = false;
5699 if (intel_crtc->pch_pll) {
5700 if (is_lvds && has_reduced_clock && i915_powersave) {
5701 I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2);
5702 intel_crtc->lowfreq_avail = true;
5704 I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp);
5708 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
5710 if (intel_crtc->config.has_pch_encoder) {
5711 intel_cpu_transcoder_set_m_n(intel_crtc,
5712 &intel_crtc->config.fdi_m_n);
5715 if (IS_IVYBRIDGE(dev))
5716 ivybridge_update_fdi_bc_bifurcation(intel_crtc);
5718 ironlake_set_pipeconf(crtc);
5720 /* Set up the display plane register */
5721 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
5722 POSTING_READ(DSPCNTR(plane));
5724 ret = intel_pipe_set_base(crtc, x, y, fb);
5726 intel_update_watermarks(dev);
5731 static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc,
5732 struct intel_crtc_config *pipe_config)
5734 struct drm_device *dev = crtc->base.dev;
5735 struct drm_i915_private *dev_priv = dev->dev_private;
5736 enum transcoder transcoder = pipe_config->cpu_transcoder;
5738 pipe_config->fdi_m_n.link_m = I915_READ(PIPE_LINK_M1(transcoder));
5739 pipe_config->fdi_m_n.link_n = I915_READ(PIPE_LINK_N1(transcoder));
5740 pipe_config->fdi_m_n.gmch_m = I915_READ(PIPE_DATA_M1(transcoder))
5742 pipe_config->fdi_m_n.gmch_n = I915_READ(PIPE_DATA_N1(transcoder));
5743 pipe_config->fdi_m_n.tu = ((I915_READ(PIPE_DATA_M1(transcoder))
5744 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
5747 static void ironlake_get_pfit_config(struct intel_crtc *crtc,
5748 struct intel_crtc_config *pipe_config)
5750 struct drm_device *dev = crtc->base.dev;
5751 struct drm_i915_private *dev_priv = dev->dev_private;
5754 tmp = I915_READ(PF_CTL(crtc->pipe));
5756 if (tmp & PF_ENABLE) {
5757 pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe));
5758 pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe));
5762 static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
5763 struct intel_crtc_config *pipe_config)
5765 struct drm_device *dev = crtc->base.dev;
5766 struct drm_i915_private *dev_priv = dev->dev_private;
5769 pipe_config->cpu_transcoder = crtc->pipe;
5771 tmp = I915_READ(PIPECONF(crtc->pipe));
5772 if (!(tmp & PIPECONF_ENABLE))
5775 if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
5776 pipe_config->has_pch_encoder = true;
5778 tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
5779 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
5780 FDI_DP_PORT_WIDTH_SHIFT) + 1;
5782 ironlake_get_fdi_m_n_config(crtc, pipe_config);
5785 intel_get_pipe_timings(crtc, pipe_config);
5787 ironlake_get_pfit_config(crtc, pipe_config);
5792 static void haswell_modeset_global_resources(struct drm_device *dev)
5794 bool enable = false;
5795 struct intel_crtc *crtc;
5796 struct intel_encoder *encoder;
5798 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
5799 if (crtc->pipe != PIPE_A && crtc->base.enabled)
5801 /* XXX: Should check for edp transcoder here, but thanks to init
5802 * sequence that's not yet available. Just in case desktop eDP
5803 * on PORT D is possible on haswell, too. */
5804 /* Even the eDP panel fitter is outside the always-on well. */
5805 if (crtc->config.pch_pfit.size && crtc->base.enabled)
5809 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
5811 if (encoder->type != INTEL_OUTPUT_EDP &&
5812 encoder->connectors_active)
5816 intel_set_power_well(dev, enable);
5819 static int haswell_crtc_mode_set(struct drm_crtc *crtc,
5821 struct drm_framebuffer *fb)
5823 struct drm_device *dev = crtc->dev;
5824 struct drm_i915_private *dev_priv = dev->dev_private;
5825 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5826 struct drm_display_mode *adjusted_mode =
5827 &intel_crtc->config.adjusted_mode;
5828 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
5829 int pipe = intel_crtc->pipe;
5830 int plane = intel_crtc->plane;
5831 int num_connectors = 0;
5832 bool is_cpu_edp = false;
5833 struct intel_encoder *encoder;
5836 for_each_encoder_on_crtc(dev, crtc, encoder) {
5837 switch (encoder->type) {
5838 case INTEL_OUTPUT_EDP:
5839 if (enc_to_dig_port(&encoder->base)->port == PORT_A)
5847 WARN(num_connectors != 1, "%d connectors attached to pipe %c\n",
5848 num_connectors, pipe_name(pipe));
5850 if (!intel_ddi_pll_mode_set(crtc, adjusted_mode->clock))
5853 /* Ensure that the cursor is valid for the new mode before changing... */
5854 intel_crtc_update_cursor(crtc, true);
5856 if (intel_crtc->config.has_dp_encoder)
5857 intel_dp_set_m_n(intel_crtc);
5859 intel_crtc->lowfreq_avail = false;
5861 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
5863 if (intel_crtc->config.has_pch_encoder) {
5864 intel_cpu_transcoder_set_m_n(intel_crtc,
5865 &intel_crtc->config.fdi_m_n);
5868 haswell_set_pipeconf(crtc);
5870 intel_set_pipe_csc(crtc);
5872 /* Set up the display plane register */
5873 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
5874 POSTING_READ(DSPCNTR(plane));
5876 ret = intel_pipe_set_base(crtc, x, y, fb);
5878 intel_update_watermarks(dev);
5883 static bool haswell_get_pipe_config(struct intel_crtc *crtc,
5884 struct intel_crtc_config *pipe_config)
5886 struct drm_device *dev = crtc->base.dev;
5887 struct drm_i915_private *dev_priv = dev->dev_private;
5888 enum intel_display_power_domain pfit_domain;
5891 pipe_config->cpu_transcoder = crtc->pipe;
5892 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
5893 if (tmp & TRANS_DDI_FUNC_ENABLE) {
5894 enum pipe trans_edp_pipe;
5895 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
5897 WARN(1, "unknown pipe linked to edp transcoder\n");
5898 case TRANS_DDI_EDP_INPUT_A_ONOFF:
5899 case TRANS_DDI_EDP_INPUT_A_ON:
5900 trans_edp_pipe = PIPE_A;
5902 case TRANS_DDI_EDP_INPUT_B_ONOFF:
5903 trans_edp_pipe = PIPE_B;
5905 case TRANS_DDI_EDP_INPUT_C_ONOFF:
5906 trans_edp_pipe = PIPE_C;
5910 if (trans_edp_pipe == crtc->pipe)
5911 pipe_config->cpu_transcoder = TRANSCODER_EDP;
5914 if (!intel_display_power_enabled(dev,
5915 POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder)))
5918 tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder));
5919 if (!(tmp & PIPECONF_ENABLE))
5923 * Haswell has only FDI/PCH transcoder A. It is which is connected to
5924 * DDI E. So just check whether this pipe is wired to DDI E and whether
5925 * the PCH transcoder is on.
5927 tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
5928 if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
5929 I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
5930 pipe_config->has_pch_encoder = true;
5932 tmp = I915_READ(FDI_RX_CTL(PIPE_A));
5933 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
5934 FDI_DP_PORT_WIDTH_SHIFT) + 1;
5936 ironlake_get_fdi_m_n_config(crtc, pipe_config);
5939 intel_get_pipe_timings(crtc, pipe_config);
5941 pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
5942 if (intel_display_power_enabled(dev, pfit_domain))
5943 ironlake_get_pfit_config(crtc, pipe_config);
5948 static int intel_crtc_mode_set(struct drm_crtc *crtc,
5950 struct drm_framebuffer *fb)
5952 struct drm_device *dev = crtc->dev;
5953 struct drm_i915_private *dev_priv = dev->dev_private;
5954 struct drm_encoder_helper_funcs *encoder_funcs;
5955 struct intel_encoder *encoder;
5956 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5957 struct drm_display_mode *adjusted_mode =
5958 &intel_crtc->config.adjusted_mode;
5959 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
5960 int pipe = intel_crtc->pipe;
5963 drm_vblank_pre_modeset(dev, pipe);
5965 ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
5967 drm_vblank_post_modeset(dev, pipe);
5972 for_each_encoder_on_crtc(dev, crtc, encoder) {
5973 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
5974 encoder->base.base.id,
5975 drm_get_encoder_name(&encoder->base),
5976 mode->base.id, mode->name);
5977 if (encoder->mode_set) {
5978 encoder->mode_set(encoder);
5980 encoder_funcs = encoder->base.helper_private;
5981 encoder_funcs->mode_set(&encoder->base, mode, adjusted_mode);
5988 static bool intel_eld_uptodate(struct drm_connector *connector,
5989 int reg_eldv, uint32_t bits_eldv,
5990 int reg_elda, uint32_t bits_elda,
5993 struct drm_i915_private *dev_priv = connector->dev->dev_private;
5994 uint8_t *eld = connector->eld;
5997 i = I915_READ(reg_eldv);
6006 i = I915_READ(reg_elda);
6008 I915_WRITE(reg_elda, i);
6010 for (i = 0; i < eld[2]; i++)
6011 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
6017 static void g4x_write_eld(struct drm_connector *connector,
6018 struct drm_crtc *crtc)
6020 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6021 uint8_t *eld = connector->eld;
6026 i = I915_READ(G4X_AUD_VID_DID);
6028 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
6029 eldv = G4X_ELDV_DEVCL_DEVBLC;
6031 eldv = G4X_ELDV_DEVCTG;
6033 if (intel_eld_uptodate(connector,
6034 G4X_AUD_CNTL_ST, eldv,
6035 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
6036 G4X_HDMIW_HDMIEDID))
6039 i = I915_READ(G4X_AUD_CNTL_ST);
6040 i &= ~(eldv | G4X_ELD_ADDR);
6041 len = (i >> 9) & 0x1f; /* ELD buffer size */
6042 I915_WRITE(G4X_AUD_CNTL_ST, i);
6047 len = min_t(uint8_t, eld[2], len);
6048 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6049 for (i = 0; i < len; i++)
6050 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
6052 i = I915_READ(G4X_AUD_CNTL_ST);
6054 I915_WRITE(G4X_AUD_CNTL_ST, i);
6057 static void haswell_write_eld(struct drm_connector *connector,
6058 struct drm_crtc *crtc)
6060 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6061 uint8_t *eld = connector->eld;
6062 struct drm_device *dev = crtc->dev;
6063 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6067 int pipe = to_intel_crtc(crtc)->pipe;
6070 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
6071 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
6072 int aud_config = HSW_AUD_CFG(pipe);
6073 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
6076 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
6078 /* Audio output enable */
6079 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
6080 tmp = I915_READ(aud_cntrl_st2);
6081 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
6082 I915_WRITE(aud_cntrl_st2, tmp);
6084 /* Wait for 1 vertical blank */
6085 intel_wait_for_vblank(dev, pipe);
6087 /* Set ELD valid state */
6088 tmp = I915_READ(aud_cntrl_st2);
6089 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp);
6090 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
6091 I915_WRITE(aud_cntrl_st2, tmp);
6092 tmp = I915_READ(aud_cntrl_st2);
6093 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp);
6095 /* Enable HDMI mode */
6096 tmp = I915_READ(aud_config);
6097 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp);
6098 /* clear N_programing_enable and N_value_index */
6099 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
6100 I915_WRITE(aud_config, tmp);
6102 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6104 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
6105 intel_crtc->eld_vld = true;
6107 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6108 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6109 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6110 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6112 I915_WRITE(aud_config, 0);
6114 if (intel_eld_uptodate(connector,
6115 aud_cntrl_st2, eldv,
6116 aud_cntl_st, IBX_ELD_ADDRESS,
6120 i = I915_READ(aud_cntrl_st2);
6122 I915_WRITE(aud_cntrl_st2, i);
6127 i = I915_READ(aud_cntl_st);
6128 i &= ~IBX_ELD_ADDRESS;
6129 I915_WRITE(aud_cntl_st, i);
6130 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6131 DRM_DEBUG_DRIVER("port num:%d\n", i);
6133 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6134 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6135 for (i = 0; i < len; i++)
6136 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6138 i = I915_READ(aud_cntrl_st2);
6140 I915_WRITE(aud_cntrl_st2, i);
6144 static void ironlake_write_eld(struct drm_connector *connector,
6145 struct drm_crtc *crtc)
6147 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6148 uint8_t *eld = connector->eld;
6156 int pipe = to_intel_crtc(crtc)->pipe;
6158 if (HAS_PCH_IBX(connector->dev)) {
6159 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
6160 aud_config = IBX_AUD_CFG(pipe);
6161 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
6162 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
6164 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
6165 aud_config = CPT_AUD_CFG(pipe);
6166 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
6167 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
6170 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6172 i = I915_READ(aud_cntl_st);
6173 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6175 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
6176 /* operate blindly on all ports */
6177 eldv = IBX_ELD_VALIDB;
6178 eldv |= IBX_ELD_VALIDB << 4;
6179 eldv |= IBX_ELD_VALIDB << 8;
6181 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i));
6182 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
6185 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6186 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6187 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6188 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6190 I915_WRITE(aud_config, 0);
6192 if (intel_eld_uptodate(connector,
6193 aud_cntrl_st2, eldv,
6194 aud_cntl_st, IBX_ELD_ADDRESS,
6198 i = I915_READ(aud_cntrl_st2);
6200 I915_WRITE(aud_cntrl_st2, i);
6205 i = I915_READ(aud_cntl_st);
6206 i &= ~IBX_ELD_ADDRESS;
6207 I915_WRITE(aud_cntl_st, i);
6209 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6210 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6211 for (i = 0; i < len; i++)
6212 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6214 i = I915_READ(aud_cntrl_st2);
6216 I915_WRITE(aud_cntrl_st2, i);
6219 void intel_write_eld(struct drm_encoder *encoder,
6220 struct drm_display_mode *mode)
6222 struct drm_crtc *crtc = encoder->crtc;
6223 struct drm_connector *connector;
6224 struct drm_device *dev = encoder->dev;
6225 struct drm_i915_private *dev_priv = dev->dev_private;
6227 connector = drm_select_eld(encoder, mode);
6231 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6233 drm_get_connector_name(connector),
6234 connector->encoder->base.id,
6235 drm_get_encoder_name(connector->encoder));
6237 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
6239 if (dev_priv->display.write_eld)
6240 dev_priv->display.write_eld(connector, crtc);
6243 /** Loads the palette/gamma unit for the CRTC with the prepared values */
6244 void intel_crtc_load_lut(struct drm_crtc *crtc)
6246 struct drm_device *dev = crtc->dev;
6247 struct drm_i915_private *dev_priv = dev->dev_private;
6248 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6249 int palreg = PALETTE(intel_crtc->pipe);
6252 /* The clocks have to be on to load the palette. */
6253 if (!crtc->enabled || !intel_crtc->active)
6256 /* use legacy palette for Ironlake */
6257 if (HAS_PCH_SPLIT(dev))
6258 palreg = LGC_PALETTE(intel_crtc->pipe);
6260 for (i = 0; i < 256; i++) {
6261 I915_WRITE(palreg + 4 * i,
6262 (intel_crtc->lut_r[i] << 16) |
6263 (intel_crtc->lut_g[i] << 8) |
6264 intel_crtc->lut_b[i]);
6268 static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
6270 struct drm_device *dev = crtc->dev;
6271 struct drm_i915_private *dev_priv = dev->dev_private;
6272 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6273 bool visible = base != 0;
6276 if (intel_crtc->cursor_visible == visible)
6279 cntl = I915_READ(_CURACNTR);
6281 /* On these chipsets we can only modify the base whilst
6282 * the cursor is disabled.
6284 I915_WRITE(_CURABASE, base);
6286 cntl &= ~(CURSOR_FORMAT_MASK);
6287 /* XXX width must be 64, stride 256 => 0x00 << 28 */
6288 cntl |= CURSOR_ENABLE |
6289 CURSOR_GAMMA_ENABLE |
6292 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
6293 I915_WRITE(_CURACNTR, cntl);
6295 intel_crtc->cursor_visible = visible;
6298 static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
6300 struct drm_device *dev = crtc->dev;
6301 struct drm_i915_private *dev_priv = dev->dev_private;
6302 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6303 int pipe = intel_crtc->pipe;
6304 bool visible = base != 0;
6306 if (intel_crtc->cursor_visible != visible) {
6307 uint32_t cntl = I915_READ(CURCNTR(pipe));
6309 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
6310 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6311 cntl |= pipe << 28; /* Connect to correct pipe */
6313 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6314 cntl |= CURSOR_MODE_DISABLE;
6316 I915_WRITE(CURCNTR(pipe), cntl);
6318 intel_crtc->cursor_visible = visible;
6320 /* and commit changes on next vblank */
6321 I915_WRITE(CURBASE(pipe), base);
6324 static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
6326 struct drm_device *dev = crtc->dev;
6327 struct drm_i915_private *dev_priv = dev->dev_private;
6328 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6329 int pipe = intel_crtc->pipe;
6330 bool visible = base != 0;
6332 if (intel_crtc->cursor_visible != visible) {
6333 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
6335 cntl &= ~CURSOR_MODE;
6336 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6338 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6339 cntl |= CURSOR_MODE_DISABLE;
6341 if (IS_HASWELL(dev))
6342 cntl |= CURSOR_PIPE_CSC_ENABLE;
6343 I915_WRITE(CURCNTR_IVB(pipe), cntl);
6345 intel_crtc->cursor_visible = visible;
6347 /* and commit changes on next vblank */
6348 I915_WRITE(CURBASE_IVB(pipe), base);
6351 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
6352 static void intel_crtc_update_cursor(struct drm_crtc *crtc,
6355 struct drm_device *dev = crtc->dev;
6356 struct drm_i915_private *dev_priv = dev->dev_private;
6357 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6358 int pipe = intel_crtc->pipe;
6359 int x = intel_crtc->cursor_x;
6360 int y = intel_crtc->cursor_y;
6366 if (on && crtc->enabled && crtc->fb) {
6367 base = intel_crtc->cursor_addr;
6368 if (x > (int) crtc->fb->width)
6371 if (y > (int) crtc->fb->height)
6377 if (x + intel_crtc->cursor_width < 0)
6380 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
6383 pos |= x << CURSOR_X_SHIFT;
6386 if (y + intel_crtc->cursor_height < 0)
6389 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
6392 pos |= y << CURSOR_Y_SHIFT;
6394 visible = base != 0;
6395 if (!visible && !intel_crtc->cursor_visible)
6398 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
6399 I915_WRITE(CURPOS_IVB(pipe), pos);
6400 ivb_update_cursor(crtc, base);
6402 I915_WRITE(CURPOS(pipe), pos);
6403 if (IS_845G(dev) || IS_I865G(dev))
6404 i845_update_cursor(crtc, base);
6406 i9xx_update_cursor(crtc, base);
6410 static int intel_crtc_cursor_set(struct drm_crtc *crtc,
6411 struct drm_file *file,
6413 uint32_t width, uint32_t height)
6415 struct drm_device *dev = crtc->dev;
6416 struct drm_i915_private *dev_priv = dev->dev_private;
6417 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6418 struct drm_i915_gem_object *obj;
6422 /* if we want to turn off the cursor ignore width and height */
6424 DRM_DEBUG_KMS("cursor off\n");
6427 mutex_lock(&dev->struct_mutex);
6431 /* Currently we only support 64x64 cursors */
6432 if (width != 64 || height != 64) {
6433 DRM_ERROR("we currently only support 64x64 cursors\n");
6437 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
6438 if (&obj->base == NULL)
6441 if (obj->base.size < width * height * 4) {
6442 DRM_ERROR("buffer is to small\n");
6447 /* we only need to pin inside GTT if cursor is non-phy */
6448 mutex_lock(&dev->struct_mutex);
6449 if (!dev_priv->info->cursor_needs_physical) {
6452 if (obj->tiling_mode) {
6453 DRM_ERROR("cursor cannot be tiled\n");
6458 /* Note that the w/a also requires 2 PTE of padding following
6459 * the bo. We currently fill all unused PTE with the shadow
6460 * page and so we should always have valid PTE following the
6461 * cursor preventing the VT-d warning.
6464 if (need_vtd_wa(dev))
6465 alignment = 64*1024;
6467 ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
6469 DRM_ERROR("failed to move cursor bo into the GTT\n");
6473 ret = i915_gem_object_put_fence(obj);
6475 DRM_ERROR("failed to release fence for cursor");
6479 addr = obj->gtt_offset;
6481 int align = IS_I830(dev) ? 16 * 1024 : 256;
6482 ret = i915_gem_attach_phys_object(dev, obj,
6483 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
6486 DRM_ERROR("failed to attach phys object\n");
6489 addr = obj->phys_obj->handle->busaddr;
6493 I915_WRITE(CURSIZE, (height << 12) | width);
6496 if (intel_crtc->cursor_bo) {
6497 if (dev_priv->info->cursor_needs_physical) {
6498 if (intel_crtc->cursor_bo != obj)
6499 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
6501 i915_gem_object_unpin(intel_crtc->cursor_bo);
6502 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
6505 mutex_unlock(&dev->struct_mutex);
6507 intel_crtc->cursor_addr = addr;
6508 intel_crtc->cursor_bo = obj;
6509 intel_crtc->cursor_width = width;
6510 intel_crtc->cursor_height = height;
6512 intel_crtc_update_cursor(crtc, true);
6516 i915_gem_object_unpin(obj);
6518 mutex_unlock(&dev->struct_mutex);
6520 drm_gem_object_unreference_unlocked(&obj->base);
6524 static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
6526 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6528 intel_crtc->cursor_x = x;
6529 intel_crtc->cursor_y = y;
6531 intel_crtc_update_cursor(crtc, true);
6536 /** Sets the color ramps on behalf of RandR */
6537 void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
6538 u16 blue, int regno)
6540 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6542 intel_crtc->lut_r[regno] = red >> 8;
6543 intel_crtc->lut_g[regno] = green >> 8;
6544 intel_crtc->lut_b[regno] = blue >> 8;
6547 void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
6548 u16 *blue, int regno)
6550 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6552 *red = intel_crtc->lut_r[regno] << 8;
6553 *green = intel_crtc->lut_g[regno] << 8;
6554 *blue = intel_crtc->lut_b[regno] << 8;
6557 static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
6558 u16 *blue, uint32_t start, uint32_t size)
6560 int end = (start + size > 256) ? 256 : start + size, i;
6561 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6563 for (i = start; i < end; i++) {
6564 intel_crtc->lut_r[i] = red[i] >> 8;
6565 intel_crtc->lut_g[i] = green[i] >> 8;
6566 intel_crtc->lut_b[i] = blue[i] >> 8;
6569 intel_crtc_load_lut(crtc);
6572 /* VESA 640x480x72Hz mode to set on the pipe */
6573 static struct drm_display_mode load_detect_mode = {
6574 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
6575 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
6578 static struct drm_framebuffer *
6579 intel_framebuffer_create(struct drm_device *dev,
6580 struct drm_mode_fb_cmd2 *mode_cmd,
6581 struct drm_i915_gem_object *obj)
6583 struct intel_framebuffer *intel_fb;
6586 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
6588 drm_gem_object_unreference_unlocked(&obj->base);
6589 return ERR_PTR(-ENOMEM);
6592 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
6594 drm_gem_object_unreference_unlocked(&obj->base);
6596 return ERR_PTR(ret);
6599 return &intel_fb->base;
6603 intel_framebuffer_pitch_for_width(int width, int bpp)
6605 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
6606 return ALIGN(pitch, 64);
6610 intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
6612 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
6613 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
6616 static struct drm_framebuffer *
6617 intel_framebuffer_create_for_mode(struct drm_device *dev,
6618 struct drm_display_mode *mode,
6621 struct drm_i915_gem_object *obj;
6622 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
6624 obj = i915_gem_alloc_object(dev,
6625 intel_framebuffer_size_for_mode(mode, bpp));
6627 return ERR_PTR(-ENOMEM);
6629 mode_cmd.width = mode->hdisplay;
6630 mode_cmd.height = mode->vdisplay;
6631 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
6633 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
6635 return intel_framebuffer_create(dev, &mode_cmd, obj);
6638 static struct drm_framebuffer *
6639 mode_fits_in_fbdev(struct drm_device *dev,
6640 struct drm_display_mode *mode)
6642 struct drm_i915_private *dev_priv = dev->dev_private;
6643 struct drm_i915_gem_object *obj;
6644 struct drm_framebuffer *fb;
6646 if (dev_priv->fbdev == NULL)
6649 obj = dev_priv->fbdev->ifb.obj;
6653 fb = &dev_priv->fbdev->ifb.base;
6654 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
6655 fb->bits_per_pixel))
6658 if (obj->base.size < mode->vdisplay * fb->pitches[0])
6664 bool intel_get_load_detect_pipe(struct drm_connector *connector,
6665 struct drm_display_mode *mode,
6666 struct intel_load_detect_pipe *old)
6668 struct intel_crtc *intel_crtc;
6669 struct intel_encoder *intel_encoder =
6670 intel_attached_encoder(connector);
6671 struct drm_crtc *possible_crtc;
6672 struct drm_encoder *encoder = &intel_encoder->base;
6673 struct drm_crtc *crtc = NULL;
6674 struct drm_device *dev = encoder->dev;
6675 struct drm_framebuffer *fb;
6678 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6679 connector->base.id, drm_get_connector_name(connector),
6680 encoder->base.id, drm_get_encoder_name(encoder));
6683 * Algorithm gets a little messy:
6685 * - if the connector already has an assigned crtc, use it (but make
6686 * sure it's on first)
6688 * - try to find the first unused crtc that can drive this connector,
6689 * and use that if we find one
6692 /* See if we already have a CRTC for this connector */
6693 if (encoder->crtc) {
6694 crtc = encoder->crtc;
6696 mutex_lock(&crtc->mutex);
6698 old->dpms_mode = connector->dpms;
6699 old->load_detect_temp = false;
6701 /* Make sure the crtc and connector are running */
6702 if (connector->dpms != DRM_MODE_DPMS_ON)
6703 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
6708 /* Find an unused one (if possible) */
6709 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
6711 if (!(encoder->possible_crtcs & (1 << i)))
6713 if (!possible_crtc->enabled) {
6714 crtc = possible_crtc;
6720 * If we didn't find an unused CRTC, don't use any.
6723 DRM_DEBUG_KMS("no pipe available for load-detect\n");
6727 mutex_lock(&crtc->mutex);
6728 intel_encoder->new_crtc = to_intel_crtc(crtc);
6729 to_intel_connector(connector)->new_encoder = intel_encoder;
6731 intel_crtc = to_intel_crtc(crtc);
6732 old->dpms_mode = connector->dpms;
6733 old->load_detect_temp = true;
6734 old->release_fb = NULL;
6737 mode = &load_detect_mode;
6739 /* We need a framebuffer large enough to accommodate all accesses
6740 * that the plane may generate whilst we perform load detection.
6741 * We can not rely on the fbcon either being present (we get called
6742 * during its initialisation to detect all boot displays, or it may
6743 * not even exist) or that it is large enough to satisfy the
6746 fb = mode_fits_in_fbdev(dev, mode);
6748 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
6749 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
6750 old->release_fb = fb;
6752 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
6754 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
6755 mutex_unlock(&crtc->mutex);
6759 if (intel_set_mode(crtc, mode, 0, 0, fb)) {
6760 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
6761 if (old->release_fb)
6762 old->release_fb->funcs->destroy(old->release_fb);
6763 mutex_unlock(&crtc->mutex);
6767 /* let the connector get through one full cycle before testing */
6768 intel_wait_for_vblank(dev, intel_crtc->pipe);
6772 void intel_release_load_detect_pipe(struct drm_connector *connector,
6773 struct intel_load_detect_pipe *old)
6775 struct intel_encoder *intel_encoder =
6776 intel_attached_encoder(connector);
6777 struct drm_encoder *encoder = &intel_encoder->base;
6778 struct drm_crtc *crtc = encoder->crtc;
6780 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6781 connector->base.id, drm_get_connector_name(connector),
6782 encoder->base.id, drm_get_encoder_name(encoder));
6784 if (old->load_detect_temp) {
6785 to_intel_connector(connector)->new_encoder = NULL;
6786 intel_encoder->new_crtc = NULL;
6787 intel_set_mode(crtc, NULL, 0, 0, NULL);
6789 if (old->release_fb) {
6790 drm_framebuffer_unregister_private(old->release_fb);
6791 drm_framebuffer_unreference(old->release_fb);
6794 mutex_unlock(&crtc->mutex);
6798 /* Switch crtc and encoder back off if necessary */
6799 if (old->dpms_mode != DRM_MODE_DPMS_ON)
6800 connector->funcs->dpms(connector, old->dpms_mode);
6802 mutex_unlock(&crtc->mutex);
6805 /* Returns the clock of the currently programmed mode of the given pipe. */
6806 static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
6808 struct drm_i915_private *dev_priv = dev->dev_private;
6809 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6810 int pipe = intel_crtc->pipe;
6811 u32 dpll = I915_READ(DPLL(pipe));
6813 intel_clock_t clock;
6815 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
6816 fp = I915_READ(FP0(pipe));
6818 fp = I915_READ(FP1(pipe));
6820 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
6821 if (IS_PINEVIEW(dev)) {
6822 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
6823 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
6825 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
6826 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
6829 if (!IS_GEN2(dev)) {
6830 if (IS_PINEVIEW(dev))
6831 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
6832 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
6834 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
6835 DPLL_FPA01_P1_POST_DIV_SHIFT);
6837 switch (dpll & DPLL_MODE_MASK) {
6838 case DPLLB_MODE_DAC_SERIAL:
6839 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
6842 case DPLLB_MODE_LVDS:
6843 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
6847 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
6848 "mode\n", (int)(dpll & DPLL_MODE_MASK));
6852 /* XXX: Handle the 100Mhz refclk */
6853 intel_clock(dev, 96000, &clock);
6855 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
6858 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
6859 DPLL_FPA01_P1_POST_DIV_SHIFT);
6862 if ((dpll & PLL_REF_INPUT_MASK) ==
6863 PLLB_REF_INPUT_SPREADSPECTRUMIN) {
6864 /* XXX: might not be 66MHz */
6865 intel_clock(dev, 66000, &clock);
6867 intel_clock(dev, 48000, &clock);
6869 if (dpll & PLL_P1_DIVIDE_BY_TWO)
6872 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
6873 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
6875 if (dpll & PLL_P2_DIVIDE_BY_4)
6880 intel_clock(dev, 48000, &clock);
6884 /* XXX: It would be nice to validate the clocks, but we can't reuse
6885 * i830PllIsValid() because it relies on the xf86_config connector
6886 * configuration being accurate, which it isn't necessarily.
6892 /** Returns the currently programmed mode of the given pipe. */
6893 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
6894 struct drm_crtc *crtc)
6896 struct drm_i915_private *dev_priv = dev->dev_private;
6897 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6898 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
6899 struct drm_display_mode *mode;
6900 int htot = I915_READ(HTOTAL(cpu_transcoder));
6901 int hsync = I915_READ(HSYNC(cpu_transcoder));
6902 int vtot = I915_READ(VTOTAL(cpu_transcoder));
6903 int vsync = I915_READ(VSYNC(cpu_transcoder));
6905 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
6909 mode->clock = intel_crtc_clock_get(dev, crtc);
6910 mode->hdisplay = (htot & 0xffff) + 1;
6911 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
6912 mode->hsync_start = (hsync & 0xffff) + 1;
6913 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
6914 mode->vdisplay = (vtot & 0xffff) + 1;
6915 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
6916 mode->vsync_start = (vsync & 0xffff) + 1;
6917 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
6919 drm_mode_set_name(mode);
6924 static void intel_increase_pllclock(struct drm_crtc *crtc)
6926 struct drm_device *dev = crtc->dev;
6927 drm_i915_private_t *dev_priv = dev->dev_private;
6928 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6929 int pipe = intel_crtc->pipe;
6930 int dpll_reg = DPLL(pipe);
6933 if (HAS_PCH_SPLIT(dev))
6936 if (!dev_priv->lvds_downclock_avail)
6939 dpll = I915_READ(dpll_reg);
6940 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
6941 DRM_DEBUG_DRIVER("upclocking LVDS\n");
6943 assert_panel_unlocked(dev_priv, pipe);
6945 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
6946 I915_WRITE(dpll_reg, dpll);
6947 intel_wait_for_vblank(dev, pipe);
6949 dpll = I915_READ(dpll_reg);
6950 if (dpll & DISPLAY_RATE_SELECT_FPA1)
6951 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
6955 static void intel_decrease_pllclock(struct drm_crtc *crtc)
6957 struct drm_device *dev = crtc->dev;
6958 drm_i915_private_t *dev_priv = dev->dev_private;
6959 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6961 if (HAS_PCH_SPLIT(dev))
6964 if (!dev_priv->lvds_downclock_avail)
6968 * Since this is called by a timer, we should never get here in
6971 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
6972 int pipe = intel_crtc->pipe;
6973 int dpll_reg = DPLL(pipe);
6976 DRM_DEBUG_DRIVER("downclocking LVDS\n");
6978 assert_panel_unlocked(dev_priv, pipe);
6980 dpll = I915_READ(dpll_reg);
6981 dpll |= DISPLAY_RATE_SELECT_FPA1;
6982 I915_WRITE(dpll_reg, dpll);
6983 intel_wait_for_vblank(dev, pipe);
6984 dpll = I915_READ(dpll_reg);
6985 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
6986 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
6991 void intel_mark_busy(struct drm_device *dev)
6993 i915_update_gfx_val(dev->dev_private);
6996 void intel_mark_idle(struct drm_device *dev)
6998 struct drm_crtc *crtc;
7000 if (!i915_powersave)
7003 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7007 intel_decrease_pllclock(crtc);
7011 void intel_mark_fb_busy(struct drm_i915_gem_object *obj)
7013 struct drm_device *dev = obj->base.dev;
7014 struct drm_crtc *crtc;
7016 if (!i915_powersave)
7019 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7023 if (to_intel_framebuffer(crtc->fb)->obj == obj)
7024 intel_increase_pllclock(crtc);
7028 static void intel_crtc_destroy(struct drm_crtc *crtc)
7030 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7031 struct drm_device *dev = crtc->dev;
7032 struct intel_unpin_work *work;
7033 unsigned long flags;
7035 spin_lock_irqsave(&dev->event_lock, flags);
7036 work = intel_crtc->unpin_work;
7037 intel_crtc->unpin_work = NULL;
7038 spin_unlock_irqrestore(&dev->event_lock, flags);
7041 cancel_work_sync(&work->work);
7045 drm_crtc_cleanup(crtc);
7050 static void intel_unpin_work_fn(struct work_struct *__work)
7052 struct intel_unpin_work *work =
7053 container_of(__work, struct intel_unpin_work, work);
7054 struct drm_device *dev = work->crtc->dev;
7056 mutex_lock(&dev->struct_mutex);
7057 intel_unpin_fb_obj(work->old_fb_obj);
7058 drm_gem_object_unreference(&work->pending_flip_obj->base);
7059 drm_gem_object_unreference(&work->old_fb_obj->base);
7061 intel_update_fbc(dev);
7062 mutex_unlock(&dev->struct_mutex);
7064 BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
7065 atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
7070 static void do_intel_finish_page_flip(struct drm_device *dev,
7071 struct drm_crtc *crtc)
7073 drm_i915_private_t *dev_priv = dev->dev_private;
7074 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7075 struct intel_unpin_work *work;
7076 unsigned long flags;
7078 /* Ignore early vblank irqs */
7079 if (intel_crtc == NULL)
7082 spin_lock_irqsave(&dev->event_lock, flags);
7083 work = intel_crtc->unpin_work;
7085 /* Ensure we don't miss a work->pending update ... */
7088 if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
7089 spin_unlock_irqrestore(&dev->event_lock, flags);
7093 /* and that the unpin work is consistent wrt ->pending. */
7096 intel_crtc->unpin_work = NULL;
7099 drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
7101 drm_vblank_put(dev, intel_crtc->pipe);
7103 spin_unlock_irqrestore(&dev->event_lock, flags);
7105 wake_up_all(&dev_priv->pending_flip_queue);
7107 queue_work(dev_priv->wq, &work->work);
7109 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
7112 void intel_finish_page_flip(struct drm_device *dev, int pipe)
7114 drm_i915_private_t *dev_priv = dev->dev_private;
7115 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
7117 do_intel_finish_page_flip(dev, crtc);
7120 void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
7122 drm_i915_private_t *dev_priv = dev->dev_private;
7123 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
7125 do_intel_finish_page_flip(dev, crtc);
7128 void intel_prepare_page_flip(struct drm_device *dev, int plane)
7130 drm_i915_private_t *dev_priv = dev->dev_private;
7131 struct intel_crtc *intel_crtc =
7132 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
7133 unsigned long flags;
7135 /* NB: An MMIO update of the plane base pointer will also
7136 * generate a page-flip completion irq, i.e. every modeset
7137 * is also accompanied by a spurious intel_prepare_page_flip().
7139 spin_lock_irqsave(&dev->event_lock, flags);
7140 if (intel_crtc->unpin_work)
7141 atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
7142 spin_unlock_irqrestore(&dev->event_lock, flags);
7145 inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
7147 /* Ensure that the work item is consistent when activating it ... */
7149 atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
7150 /* and that it is marked active as soon as the irq could fire. */
7154 static int intel_gen2_queue_flip(struct drm_device *dev,
7155 struct drm_crtc *crtc,
7156 struct drm_framebuffer *fb,
7157 struct drm_i915_gem_object *obj)
7159 struct drm_i915_private *dev_priv = dev->dev_private;
7160 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7162 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7165 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7169 ret = intel_ring_begin(ring, 6);
7173 /* Can't queue multiple flips, so wait for the previous
7174 * one to finish before executing the next.
7176 if (intel_crtc->plane)
7177 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7179 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
7180 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7181 intel_ring_emit(ring, MI_NOOP);
7182 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7183 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7184 intel_ring_emit(ring, fb->pitches[0]);
7185 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7186 intel_ring_emit(ring, 0); /* aux display base address, unused */
7188 intel_mark_page_flip_active(intel_crtc);
7189 intel_ring_advance(ring);
7193 intel_unpin_fb_obj(obj);
7198 static int intel_gen3_queue_flip(struct drm_device *dev,
7199 struct drm_crtc *crtc,
7200 struct drm_framebuffer *fb,
7201 struct drm_i915_gem_object *obj)
7203 struct drm_i915_private *dev_priv = dev->dev_private;
7204 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7206 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7209 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7213 ret = intel_ring_begin(ring, 6);
7217 if (intel_crtc->plane)
7218 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7220 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
7221 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7222 intel_ring_emit(ring, MI_NOOP);
7223 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
7224 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7225 intel_ring_emit(ring, fb->pitches[0]);
7226 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7227 intel_ring_emit(ring, MI_NOOP);
7229 intel_mark_page_flip_active(intel_crtc);
7230 intel_ring_advance(ring);
7234 intel_unpin_fb_obj(obj);
7239 static int intel_gen4_queue_flip(struct drm_device *dev,
7240 struct drm_crtc *crtc,
7241 struct drm_framebuffer *fb,
7242 struct drm_i915_gem_object *obj)
7244 struct drm_i915_private *dev_priv = dev->dev_private;
7245 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7246 uint32_t pf, pipesrc;
7247 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7250 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7254 ret = intel_ring_begin(ring, 4);
7258 /* i965+ uses the linear or tiled offsets from the
7259 * Display Registers (which do not change across a page-flip)
7260 * so we need only reprogram the base address.
7262 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7263 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7264 intel_ring_emit(ring, fb->pitches[0]);
7265 intel_ring_emit(ring,
7266 (obj->gtt_offset + intel_crtc->dspaddr_offset) |
7269 /* XXX Enabling the panel-fitter across page-flip is so far
7270 * untested on non-native modes, so ignore it for now.
7271 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
7274 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
7275 intel_ring_emit(ring, pf | pipesrc);
7277 intel_mark_page_flip_active(intel_crtc);
7278 intel_ring_advance(ring);
7282 intel_unpin_fb_obj(obj);
7287 static int intel_gen6_queue_flip(struct drm_device *dev,
7288 struct drm_crtc *crtc,
7289 struct drm_framebuffer *fb,
7290 struct drm_i915_gem_object *obj)
7292 struct drm_i915_private *dev_priv = dev->dev_private;
7293 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7294 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7295 uint32_t pf, pipesrc;
7298 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7302 ret = intel_ring_begin(ring, 4);
7306 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7307 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7308 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
7309 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7311 /* Contrary to the suggestions in the documentation,
7312 * "Enable Panel Fitter" does not seem to be required when page
7313 * flipping with a non-native mode, and worse causes a normal
7315 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
7318 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
7319 intel_ring_emit(ring, pf | pipesrc);
7321 intel_mark_page_flip_active(intel_crtc);
7322 intel_ring_advance(ring);
7326 intel_unpin_fb_obj(obj);
7332 * On gen7 we currently use the blit ring because (in early silicon at least)
7333 * the render ring doesn't give us interrpts for page flip completion, which
7334 * means clients will hang after the first flip is queued. Fortunately the
7335 * blit ring generates interrupts properly, so use it instead.
7337 static int intel_gen7_queue_flip(struct drm_device *dev,
7338 struct drm_crtc *crtc,
7339 struct drm_framebuffer *fb,
7340 struct drm_i915_gem_object *obj)
7342 struct drm_i915_private *dev_priv = dev->dev_private;
7343 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7344 struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
7345 uint32_t plane_bit = 0;
7348 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7352 switch(intel_crtc->plane) {
7354 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
7357 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
7360 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
7363 WARN_ONCE(1, "unknown plane in flip command\n");
7368 ret = intel_ring_begin(ring, 4);
7372 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
7373 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
7374 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7375 intel_ring_emit(ring, (MI_NOOP));
7377 intel_mark_page_flip_active(intel_crtc);
7378 intel_ring_advance(ring);
7382 intel_unpin_fb_obj(obj);
7387 static int intel_default_queue_flip(struct drm_device *dev,
7388 struct drm_crtc *crtc,
7389 struct drm_framebuffer *fb,
7390 struct drm_i915_gem_object *obj)
7395 static int intel_crtc_page_flip(struct drm_crtc *crtc,
7396 struct drm_framebuffer *fb,
7397 struct drm_pending_vblank_event *event)
7399 struct drm_device *dev = crtc->dev;
7400 struct drm_i915_private *dev_priv = dev->dev_private;
7401 struct drm_framebuffer *old_fb = crtc->fb;
7402 struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
7403 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7404 struct intel_unpin_work *work;
7405 unsigned long flags;
7408 /* Can't change pixel format via MI display flips. */
7409 if (fb->pixel_format != crtc->fb->pixel_format)
7413 * TILEOFF/LINOFF registers can't be changed via MI display flips.
7414 * Note that pitch changes could also affect these register.
7416 if (INTEL_INFO(dev)->gen > 3 &&
7417 (fb->offsets[0] != crtc->fb->offsets[0] ||
7418 fb->pitches[0] != crtc->fb->pitches[0]))
7421 work = kzalloc(sizeof *work, GFP_KERNEL);
7425 work->event = event;
7427 work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
7428 INIT_WORK(&work->work, intel_unpin_work_fn);
7430 ret = drm_vblank_get(dev, intel_crtc->pipe);
7434 /* We borrow the event spin lock for protecting unpin_work */
7435 spin_lock_irqsave(&dev->event_lock, flags);
7436 if (intel_crtc->unpin_work) {
7437 spin_unlock_irqrestore(&dev->event_lock, flags);
7439 drm_vblank_put(dev, intel_crtc->pipe);
7441 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
7444 intel_crtc->unpin_work = work;
7445 spin_unlock_irqrestore(&dev->event_lock, flags);
7447 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
7448 flush_workqueue(dev_priv->wq);
7450 ret = i915_mutex_lock_interruptible(dev);
7454 /* Reference the objects for the scheduled work. */
7455 drm_gem_object_reference(&work->old_fb_obj->base);
7456 drm_gem_object_reference(&obj->base);
7460 work->pending_flip_obj = obj;
7462 work->enable_stall_check = true;
7464 atomic_inc(&intel_crtc->unpin_work_count);
7465 intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
7467 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj);
7469 goto cleanup_pending;
7471 intel_disable_fbc(dev);
7472 intel_mark_fb_busy(obj);
7473 mutex_unlock(&dev->struct_mutex);
7475 trace_i915_flip_request(intel_crtc->plane, obj);
7480 atomic_dec(&intel_crtc->unpin_work_count);
7482 drm_gem_object_unreference(&work->old_fb_obj->base);
7483 drm_gem_object_unreference(&obj->base);
7484 mutex_unlock(&dev->struct_mutex);
7487 spin_lock_irqsave(&dev->event_lock, flags);
7488 intel_crtc->unpin_work = NULL;
7489 spin_unlock_irqrestore(&dev->event_lock, flags);
7491 drm_vblank_put(dev, intel_crtc->pipe);
7498 static struct drm_crtc_helper_funcs intel_helper_funcs = {
7499 .mode_set_base_atomic = intel_pipe_set_base_atomic,
7500 .load_lut = intel_crtc_load_lut,
7503 bool intel_encoder_check_is_cloned(struct intel_encoder *encoder)
7505 struct intel_encoder *other_encoder;
7506 struct drm_crtc *crtc = &encoder->new_crtc->base;
7511 list_for_each_entry(other_encoder,
7512 &crtc->dev->mode_config.encoder_list,
7515 if (&other_encoder->new_crtc->base != crtc ||
7516 encoder == other_encoder)
7525 static bool intel_encoder_crtc_ok(struct drm_encoder *encoder,
7526 struct drm_crtc *crtc)
7528 struct drm_device *dev;
7529 struct drm_crtc *tmp;
7532 WARN(!crtc, "checking null crtc?\n");
7536 list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
7542 if (encoder->possible_crtcs & crtc_mask)
7548 * intel_modeset_update_staged_output_state
7550 * Updates the staged output configuration state, e.g. after we've read out the
7553 static void intel_modeset_update_staged_output_state(struct drm_device *dev)
7555 struct intel_encoder *encoder;
7556 struct intel_connector *connector;
7558 list_for_each_entry(connector, &dev->mode_config.connector_list,
7560 connector->new_encoder =
7561 to_intel_encoder(connector->base.encoder);
7564 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7567 to_intel_crtc(encoder->base.crtc);
7572 * intel_modeset_commit_output_state
7574 * This function copies the stage display pipe configuration to the real one.
7576 static void intel_modeset_commit_output_state(struct drm_device *dev)
7578 struct intel_encoder *encoder;
7579 struct intel_connector *connector;
7581 list_for_each_entry(connector, &dev->mode_config.connector_list,
7583 connector->base.encoder = &connector->new_encoder->base;
7586 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7588 encoder->base.crtc = &encoder->new_crtc->base;
7593 pipe_config_set_bpp(struct drm_crtc *crtc,
7594 struct drm_framebuffer *fb,
7595 struct intel_crtc_config *pipe_config)
7597 struct drm_device *dev = crtc->dev;
7598 struct drm_connector *connector;
7601 switch (fb->pixel_format) {
7603 bpp = 8*3; /* since we go through a colormap */
7605 case DRM_FORMAT_XRGB1555:
7606 case DRM_FORMAT_ARGB1555:
7607 /* checked in intel_framebuffer_init already */
7608 if (WARN_ON(INTEL_INFO(dev)->gen > 3))
7610 case DRM_FORMAT_RGB565:
7611 bpp = 6*3; /* min is 18bpp */
7613 case DRM_FORMAT_XBGR8888:
7614 case DRM_FORMAT_ABGR8888:
7615 /* checked in intel_framebuffer_init already */
7616 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
7618 case DRM_FORMAT_XRGB8888:
7619 case DRM_FORMAT_ARGB8888:
7622 case DRM_FORMAT_XRGB2101010:
7623 case DRM_FORMAT_ARGB2101010:
7624 case DRM_FORMAT_XBGR2101010:
7625 case DRM_FORMAT_ABGR2101010:
7626 /* checked in intel_framebuffer_init already */
7627 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
7631 /* TODO: gen4+ supports 16 bpc floating point, too. */
7633 DRM_DEBUG_KMS("unsupported depth\n");
7637 pipe_config->pipe_bpp = bpp;
7639 /* Clamp display bpp to EDID value */
7640 list_for_each_entry(connector, &dev->mode_config.connector_list,
7642 if (connector->encoder && connector->encoder->crtc != crtc)
7645 /* Don't use an invalid EDID bpc value */
7646 if (connector->display_info.bpc &&
7647 connector->display_info.bpc * 3 < bpp) {
7648 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
7649 bpp, connector->display_info.bpc*3);
7650 pipe_config->pipe_bpp = connector->display_info.bpc*3;
7653 /* Clamp bpp to 8 on screens without EDID 1.4 */
7654 if (connector->display_info.bpc == 0 && bpp > 24) {
7655 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
7657 pipe_config->pipe_bpp = 24;
7664 static void intel_dump_pipe_config(struct intel_crtc *crtc,
7665 struct intel_crtc_config *pipe_config,
7666 const char *context)
7668 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id,
7669 context, pipe_name(crtc->pipe));
7671 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder));
7672 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
7673 pipe_config->pipe_bpp, pipe_config->dither);
7674 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
7675 pipe_config->has_pch_encoder,
7676 pipe_config->fdi_lanes,
7677 pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n,
7678 pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n,
7679 pipe_config->fdi_m_n.tu);
7680 DRM_DEBUG_KMS("requested mode:\n");
7681 drm_mode_debug_printmodeline(&pipe_config->requested_mode);
7682 DRM_DEBUG_KMS("adjusted mode:\n");
7683 drm_mode_debug_printmodeline(&pipe_config->adjusted_mode);
7684 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
7685 pipe_config->gmch_pfit.control,
7686 pipe_config->gmch_pfit.pgm_ratios,
7687 pipe_config->gmch_pfit.lvds_border_bits);
7688 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x\n",
7689 pipe_config->pch_pfit.pos,
7690 pipe_config->pch_pfit.size);
7693 static struct intel_crtc_config *
7694 intel_modeset_pipe_config(struct drm_crtc *crtc,
7695 struct drm_framebuffer *fb,
7696 struct drm_display_mode *mode)
7698 struct drm_device *dev = crtc->dev;
7699 struct drm_encoder_helper_funcs *encoder_funcs;
7700 struct intel_encoder *encoder;
7701 struct intel_crtc_config *pipe_config;
7702 int plane_bpp, ret = -EINVAL;
7705 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
7707 return ERR_PTR(-ENOMEM);
7709 drm_mode_copy(&pipe_config->adjusted_mode, mode);
7710 drm_mode_copy(&pipe_config->requested_mode, mode);
7711 pipe_config->cpu_transcoder = to_intel_crtc(crtc)->pipe;
7713 plane_bpp = pipe_config_set_bpp(crtc, fb, pipe_config);
7718 /* Pass our mode to the connectors and the CRTC to give them a chance to
7719 * adjust it according to limitations or connector properties, and also
7720 * a chance to reject the mode entirely.
7722 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7725 if (&encoder->new_crtc->base != crtc)
7728 if (encoder->compute_config) {
7729 if (!(encoder->compute_config(encoder, pipe_config))) {
7730 DRM_DEBUG_KMS("Encoder config failure\n");
7737 encoder_funcs = encoder->base.helper_private;
7738 if (!(encoder_funcs->mode_fixup(&encoder->base,
7739 &pipe_config->requested_mode,
7740 &pipe_config->adjusted_mode))) {
7741 DRM_DEBUG_KMS("Encoder fixup failed\n");
7746 ret = intel_crtc_compute_config(crtc, pipe_config);
7748 DRM_DEBUG_KMS("CRTC fixup failed\n");
7753 if (WARN(!retry, "loop in pipe configuration computation\n")) {
7758 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
7763 pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
7764 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
7765 plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
7770 return ERR_PTR(ret);
7773 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
7774 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
7776 intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
7777 unsigned *prepare_pipes, unsigned *disable_pipes)
7779 struct intel_crtc *intel_crtc;
7780 struct drm_device *dev = crtc->dev;
7781 struct intel_encoder *encoder;
7782 struct intel_connector *connector;
7783 struct drm_crtc *tmp_crtc;
7785 *disable_pipes = *modeset_pipes = *prepare_pipes = 0;
7787 /* Check which crtcs have changed outputs connected to them, these need
7788 * to be part of the prepare_pipes mask. We don't (yet) support global
7789 * modeset across multiple crtcs, so modeset_pipes will only have one
7790 * bit set at most. */
7791 list_for_each_entry(connector, &dev->mode_config.connector_list,
7793 if (connector->base.encoder == &connector->new_encoder->base)
7796 if (connector->base.encoder) {
7797 tmp_crtc = connector->base.encoder->crtc;
7799 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
7802 if (connector->new_encoder)
7804 1 << connector->new_encoder->new_crtc->pipe;
7807 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7809 if (encoder->base.crtc == &encoder->new_crtc->base)
7812 if (encoder->base.crtc) {
7813 tmp_crtc = encoder->base.crtc;
7815 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
7818 if (encoder->new_crtc)
7819 *prepare_pipes |= 1 << encoder->new_crtc->pipe;
7822 /* Check for any pipes that will be fully disabled ... */
7823 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
7827 /* Don't try to disable disabled crtcs. */
7828 if (!intel_crtc->base.enabled)
7831 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7833 if (encoder->new_crtc == intel_crtc)
7838 *disable_pipes |= 1 << intel_crtc->pipe;
7842 /* set_mode is also used to update properties on life display pipes. */
7843 intel_crtc = to_intel_crtc(crtc);
7845 *prepare_pipes |= 1 << intel_crtc->pipe;
7848 * For simplicity do a full modeset on any pipe where the output routing
7849 * changed. We could be more clever, but that would require us to be
7850 * more careful with calling the relevant encoder->mode_set functions.
7853 *modeset_pipes = *prepare_pipes;
7855 /* ... and mask these out. */
7856 *modeset_pipes &= ~(*disable_pipes);
7857 *prepare_pipes &= ~(*disable_pipes);
7860 * HACK: We don't (yet) fully support global modesets. intel_set_config
7861 * obies this rule, but the modeset restore mode of
7862 * intel_modeset_setup_hw_state does not.
7864 *modeset_pipes &= 1 << intel_crtc->pipe;
7865 *prepare_pipes &= 1 << intel_crtc->pipe;
7867 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
7868 *modeset_pipes, *prepare_pipes, *disable_pipes);
7871 static bool intel_crtc_in_use(struct drm_crtc *crtc)
7873 struct drm_encoder *encoder;
7874 struct drm_device *dev = crtc->dev;
7876 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
7877 if (encoder->crtc == crtc)
7884 intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
7886 struct intel_encoder *intel_encoder;
7887 struct intel_crtc *intel_crtc;
7888 struct drm_connector *connector;
7890 list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
7892 if (!intel_encoder->base.crtc)
7895 intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
7897 if (prepare_pipes & (1 << intel_crtc->pipe))
7898 intel_encoder->connectors_active = false;
7901 intel_modeset_commit_output_state(dev);
7903 /* Update computed state. */
7904 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
7906 intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base);
7909 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
7910 if (!connector->encoder || !connector->encoder->crtc)
7913 intel_crtc = to_intel_crtc(connector->encoder->crtc);
7915 if (prepare_pipes & (1 << intel_crtc->pipe)) {
7916 struct drm_property *dpms_property =
7917 dev->mode_config.dpms_property;
7919 connector->dpms = DRM_MODE_DPMS_ON;
7920 drm_object_property_set_value(&connector->base,
7924 intel_encoder = to_intel_encoder(connector->encoder);
7925 intel_encoder->connectors_active = true;
7931 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
7932 list_for_each_entry((intel_crtc), \
7933 &(dev)->mode_config.crtc_list, \
7935 if (mask & (1 <<(intel_crtc)->pipe))
7938 intel_pipe_config_compare(struct drm_device *dev,
7939 struct intel_crtc_config *current_config,
7940 struct intel_crtc_config *pipe_config)
7942 #define PIPE_CONF_CHECK_I(name) \
7943 if (current_config->name != pipe_config->name) { \
7944 DRM_ERROR("mismatch in " #name " " \
7945 "(expected %i, found %i)\n", \
7946 current_config->name, \
7947 pipe_config->name); \
7951 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
7952 if ((current_config->name ^ pipe_config->name) & (mask)) { \
7953 DRM_ERROR("mismatch in " #name " " \
7954 "(expected %i, found %i)\n", \
7955 current_config->name & (mask), \
7956 pipe_config->name & (mask)); \
7960 PIPE_CONF_CHECK_I(cpu_transcoder);
7962 PIPE_CONF_CHECK_I(has_pch_encoder);
7963 PIPE_CONF_CHECK_I(fdi_lanes);
7964 PIPE_CONF_CHECK_I(fdi_m_n.gmch_m);
7965 PIPE_CONF_CHECK_I(fdi_m_n.gmch_n);
7966 PIPE_CONF_CHECK_I(fdi_m_n.link_m);
7967 PIPE_CONF_CHECK_I(fdi_m_n.link_n);
7968 PIPE_CONF_CHECK_I(fdi_m_n.tu);
7970 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay);
7971 PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal);
7972 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start);
7973 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end);
7974 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start);
7975 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end);
7977 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay);
7978 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal);
7979 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start);
7980 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end);
7981 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start);
7982 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end);
7984 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
7985 DRM_MODE_FLAG_INTERLACE);
7987 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
7988 DRM_MODE_FLAG_PHSYNC);
7989 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
7990 DRM_MODE_FLAG_NHSYNC);
7991 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
7992 DRM_MODE_FLAG_PVSYNC);
7993 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
7994 DRM_MODE_FLAG_NVSYNC);
7996 PIPE_CONF_CHECK_I(requested_mode.hdisplay);
7997 PIPE_CONF_CHECK_I(requested_mode.vdisplay);
7999 PIPE_CONF_CHECK_I(gmch_pfit.control);
8000 /* pfit ratios are autocomputed by the hw on gen4+ */
8001 if (INTEL_INFO(dev)->gen < 4)
8002 PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios);
8003 PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits);
8004 PIPE_CONF_CHECK_I(pch_pfit.pos);
8005 PIPE_CONF_CHECK_I(pch_pfit.size);
8007 #undef PIPE_CONF_CHECK_I
8008 #undef PIPE_CONF_CHECK_FLAGS
8014 intel_modeset_check_state(struct drm_device *dev)
8016 drm_i915_private_t *dev_priv = dev->dev_private;
8017 struct intel_crtc *crtc;
8018 struct intel_encoder *encoder;
8019 struct intel_connector *connector;
8020 struct intel_crtc_config pipe_config;
8022 list_for_each_entry(connector, &dev->mode_config.connector_list,
8024 /* This also checks the encoder/connector hw state with the
8025 * ->get_hw_state callbacks. */
8026 intel_connector_check_state(connector);
8028 WARN(&connector->new_encoder->base != connector->base.encoder,
8029 "connector's staged encoder doesn't match current encoder\n");
8032 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8034 bool enabled = false;
8035 bool active = false;
8036 enum pipe pipe, tracked_pipe;
8038 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
8039 encoder->base.base.id,
8040 drm_get_encoder_name(&encoder->base));
8042 WARN(&encoder->new_crtc->base != encoder->base.crtc,
8043 "encoder's stage crtc doesn't match current crtc\n");
8044 WARN(encoder->connectors_active && !encoder->base.crtc,
8045 "encoder's active_connectors set, but no crtc\n");
8047 list_for_each_entry(connector, &dev->mode_config.connector_list,
8049 if (connector->base.encoder != &encoder->base)
8052 if (connector->base.dpms != DRM_MODE_DPMS_OFF)
8055 WARN(!!encoder->base.crtc != enabled,
8056 "encoder's enabled state mismatch "
8057 "(expected %i, found %i)\n",
8058 !!encoder->base.crtc, enabled);
8059 WARN(active && !encoder->base.crtc,
8060 "active encoder with no crtc\n");
8062 WARN(encoder->connectors_active != active,
8063 "encoder's computed active state doesn't match tracked active state "
8064 "(expected %i, found %i)\n", active, encoder->connectors_active);
8066 active = encoder->get_hw_state(encoder, &pipe);
8067 WARN(active != encoder->connectors_active,
8068 "encoder's hw state doesn't match sw tracking "
8069 "(expected %i, found %i)\n",
8070 encoder->connectors_active, active);
8072 if (!encoder->base.crtc)
8075 tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
8076 WARN(active && pipe != tracked_pipe,
8077 "active encoder's pipe doesn't match"
8078 "(expected %i, found %i)\n",
8079 tracked_pipe, pipe);
8083 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
8085 bool enabled = false;
8086 bool active = false;
8088 memset(&pipe_config, 0, sizeof(pipe_config));
8090 DRM_DEBUG_KMS("[CRTC:%d]\n",
8091 crtc->base.base.id);
8093 WARN(crtc->active && !crtc->base.enabled,
8094 "active crtc, but not enabled in sw tracking\n");
8096 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8098 if (encoder->base.crtc != &crtc->base)
8101 if (encoder->connectors_active)
8103 if (encoder->get_config)
8104 encoder->get_config(encoder, &pipe_config);
8106 WARN(active != crtc->active,
8107 "crtc's computed active state doesn't match tracked active state "
8108 "(expected %i, found %i)\n", active, crtc->active);
8109 WARN(enabled != crtc->base.enabled,
8110 "crtc's computed enabled state doesn't match tracked enabled state "
8111 "(expected %i, found %i)\n", enabled, crtc->base.enabled);
8113 active = dev_priv->display.get_pipe_config(crtc,
8115 WARN(crtc->active != active,
8116 "crtc active state doesn't match with hw state "
8117 "(expected %i, found %i)\n", crtc->active, active);
8120 !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) {
8121 WARN(1, "pipe state doesn't match!\n");
8122 intel_dump_pipe_config(crtc, &pipe_config,
8124 intel_dump_pipe_config(crtc, &crtc->config,
8130 static int __intel_set_mode(struct drm_crtc *crtc,
8131 struct drm_display_mode *mode,
8132 int x, int y, struct drm_framebuffer *fb)
8134 struct drm_device *dev = crtc->dev;
8135 drm_i915_private_t *dev_priv = dev->dev_private;
8136 struct drm_display_mode *saved_mode, *saved_hwmode;
8137 struct intel_crtc_config *pipe_config = NULL;
8138 struct intel_crtc *intel_crtc;
8139 unsigned disable_pipes, prepare_pipes, modeset_pipes;
8142 saved_mode = kmalloc(2 * sizeof(*saved_mode), GFP_KERNEL);
8145 saved_hwmode = saved_mode + 1;
8147 intel_modeset_affected_pipes(crtc, &modeset_pipes,
8148 &prepare_pipes, &disable_pipes);
8150 *saved_hwmode = crtc->hwmode;
8151 *saved_mode = crtc->mode;
8153 /* Hack: Because we don't (yet) support global modeset on multiple
8154 * crtcs, we don't keep track of the new mode for more than one crtc.
8155 * Hence simply check whether any bit is set in modeset_pipes in all the
8156 * pieces of code that are not yet converted to deal with mutliple crtcs
8157 * changing their mode at the same time. */
8158 if (modeset_pipes) {
8159 pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
8160 if (IS_ERR(pipe_config)) {
8161 ret = PTR_ERR(pipe_config);
8166 intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config,
8170 for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
8171 intel_crtc_disable(&intel_crtc->base);
8173 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
8174 if (intel_crtc->base.enabled)
8175 dev_priv->display.crtc_disable(&intel_crtc->base);
8178 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
8179 * to set it here already despite that we pass it down the callchain.
8181 if (modeset_pipes) {
8183 /* mode_set/enable/disable functions rely on a correct pipe
8185 to_intel_crtc(crtc)->config = *pipe_config;
8188 /* Only after disabling all output pipelines that will be changed can we
8189 * update the the output configuration. */
8190 intel_modeset_update_state(dev, prepare_pipes);
8192 if (dev_priv->display.modeset_global_resources)
8193 dev_priv->display.modeset_global_resources(dev);
8195 /* Set up the DPLL and any encoders state that needs to adjust or depend
8198 for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
8199 ret = intel_crtc_mode_set(&intel_crtc->base,
8205 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
8206 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
8207 dev_priv->display.crtc_enable(&intel_crtc->base);
8209 if (modeset_pipes) {
8210 /* Store real post-adjustment hardware mode. */
8211 crtc->hwmode = pipe_config->adjusted_mode;
8213 /* Calculate and store various constants which
8214 * are later needed by vblank and swap-completion
8215 * timestamping. They are derived from true hwmode.
8217 drm_calc_timestamping_constants(crtc);
8220 /* FIXME: add subpixel order */
8222 if (ret && crtc->enabled) {
8223 crtc->hwmode = *saved_hwmode;
8224 crtc->mode = *saved_mode;
8233 int intel_set_mode(struct drm_crtc *crtc,
8234 struct drm_display_mode *mode,
8235 int x, int y, struct drm_framebuffer *fb)
8239 ret = __intel_set_mode(crtc, mode, x, y, fb);
8242 intel_modeset_check_state(crtc->dev);
8247 void intel_crtc_restore_mode(struct drm_crtc *crtc)
8249 intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb);
8252 #undef for_each_intel_crtc_masked
8254 static void intel_set_config_free(struct intel_set_config *config)
8259 kfree(config->save_connector_encoders);
8260 kfree(config->save_encoder_crtcs);
8264 static int intel_set_config_save_state(struct drm_device *dev,
8265 struct intel_set_config *config)
8267 struct drm_encoder *encoder;
8268 struct drm_connector *connector;
8271 config->save_encoder_crtcs =
8272 kcalloc(dev->mode_config.num_encoder,
8273 sizeof(struct drm_crtc *), GFP_KERNEL);
8274 if (!config->save_encoder_crtcs)
8277 config->save_connector_encoders =
8278 kcalloc(dev->mode_config.num_connector,
8279 sizeof(struct drm_encoder *), GFP_KERNEL);
8280 if (!config->save_connector_encoders)
8283 /* Copy data. Note that driver private data is not affected.
8284 * Should anything bad happen only the expected state is
8285 * restored, not the drivers personal bookkeeping.
8288 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
8289 config->save_encoder_crtcs[count++] = encoder->crtc;
8293 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
8294 config->save_connector_encoders[count++] = connector->encoder;
8300 static void intel_set_config_restore_state(struct drm_device *dev,
8301 struct intel_set_config *config)
8303 struct intel_encoder *encoder;
8304 struct intel_connector *connector;
8308 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
8310 to_intel_crtc(config->save_encoder_crtcs[count++]);
8314 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
8315 connector->new_encoder =
8316 to_intel_encoder(config->save_connector_encoders[count++]);
8321 intel_set_config_compute_mode_changes(struct drm_mode_set *set,
8322 struct intel_set_config *config)
8325 /* We should be able to check here if the fb has the same properties
8326 * and then just flip_or_move it */
8327 if (set->crtc->fb != set->fb) {
8328 /* If we have no fb then treat it as a full mode set */
8329 if (set->crtc->fb == NULL) {
8330 DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
8331 config->mode_changed = true;
8332 } else if (set->fb == NULL) {
8333 config->mode_changed = true;
8334 } else if (set->fb->pixel_format !=
8335 set->crtc->fb->pixel_format) {
8336 config->mode_changed = true;
8338 config->fb_changed = true;
8341 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
8342 config->fb_changed = true;
8344 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
8345 DRM_DEBUG_KMS("modes are different, full mode set\n");
8346 drm_mode_debug_printmodeline(&set->crtc->mode);
8347 drm_mode_debug_printmodeline(set->mode);
8348 config->mode_changed = true;
8353 intel_modeset_stage_output_state(struct drm_device *dev,
8354 struct drm_mode_set *set,
8355 struct intel_set_config *config)
8357 struct drm_crtc *new_crtc;
8358 struct intel_connector *connector;
8359 struct intel_encoder *encoder;
8362 /* The upper layers ensure that we either disable a crtc or have a list
8363 * of connectors. For paranoia, double-check this. */
8364 WARN_ON(!set->fb && (set->num_connectors != 0));
8365 WARN_ON(set->fb && (set->num_connectors == 0));
8368 list_for_each_entry(connector, &dev->mode_config.connector_list,
8370 /* Otherwise traverse passed in connector list and get encoders
8372 for (ro = 0; ro < set->num_connectors; ro++) {
8373 if (set->connectors[ro] == &connector->base) {
8374 connector->new_encoder = connector->encoder;
8379 /* If we disable the crtc, disable all its connectors. Also, if
8380 * the connector is on the changing crtc but not on the new
8381 * connector list, disable it. */
8382 if ((!set->fb || ro == set->num_connectors) &&
8383 connector->base.encoder &&
8384 connector->base.encoder->crtc == set->crtc) {
8385 connector->new_encoder = NULL;
8387 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
8388 connector->base.base.id,
8389 drm_get_connector_name(&connector->base));
8393 if (&connector->new_encoder->base != connector->base.encoder) {
8394 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
8395 config->mode_changed = true;
8398 /* connector->new_encoder is now updated for all connectors. */
8400 /* Update crtc of enabled connectors. */
8402 list_for_each_entry(connector, &dev->mode_config.connector_list,
8404 if (!connector->new_encoder)
8407 new_crtc = connector->new_encoder->base.crtc;
8409 for (ro = 0; ro < set->num_connectors; ro++) {
8410 if (set->connectors[ro] == &connector->base)
8411 new_crtc = set->crtc;
8414 /* Make sure the new CRTC will work with the encoder */
8415 if (!intel_encoder_crtc_ok(&connector->new_encoder->base,
8419 connector->encoder->new_crtc = to_intel_crtc(new_crtc);
8421 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
8422 connector->base.base.id,
8423 drm_get_connector_name(&connector->base),
8427 /* Check for any encoders that needs to be disabled. */
8428 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8430 list_for_each_entry(connector,
8431 &dev->mode_config.connector_list,
8433 if (connector->new_encoder == encoder) {
8434 WARN_ON(!connector->new_encoder->new_crtc);
8439 encoder->new_crtc = NULL;
8441 /* Only now check for crtc changes so we don't miss encoders
8442 * that will be disabled. */
8443 if (&encoder->new_crtc->base != encoder->base.crtc) {
8444 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
8445 config->mode_changed = true;
8448 /* Now we've also updated encoder->new_crtc for all encoders. */
8453 static int intel_crtc_set_config(struct drm_mode_set *set)
8455 struct drm_device *dev;
8456 struct drm_mode_set save_set;
8457 struct intel_set_config *config;
8462 BUG_ON(!set->crtc->helper_private);
8464 /* Enforce sane interface api - has been abused by the fb helper. */
8465 BUG_ON(!set->mode && set->fb);
8466 BUG_ON(set->fb && set->num_connectors == 0);
8469 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
8470 set->crtc->base.id, set->fb->base.id,
8471 (int)set->num_connectors, set->x, set->y);
8473 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
8476 dev = set->crtc->dev;
8479 config = kzalloc(sizeof(*config), GFP_KERNEL);
8483 ret = intel_set_config_save_state(dev, config);
8487 save_set.crtc = set->crtc;
8488 save_set.mode = &set->crtc->mode;
8489 save_set.x = set->crtc->x;
8490 save_set.y = set->crtc->y;
8491 save_set.fb = set->crtc->fb;
8493 /* Compute whether we need a full modeset, only an fb base update or no
8494 * change at all. In the future we might also check whether only the
8495 * mode changed, e.g. for LVDS where we only change the panel fitter in
8497 intel_set_config_compute_mode_changes(set, config);
8499 ret = intel_modeset_stage_output_state(dev, set, config);
8503 if (config->mode_changed) {
8504 ret = intel_set_mode(set->crtc, set->mode,
8505 set->x, set->y, set->fb);
8507 DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n",
8508 set->crtc->base.id, ret);
8511 } else if (config->fb_changed) {
8512 intel_crtc_wait_for_pending_flips(set->crtc);
8514 ret = intel_pipe_set_base(set->crtc,
8515 set->x, set->y, set->fb);
8518 intel_set_config_free(config);
8523 intel_set_config_restore_state(dev, config);
8525 /* Try to restore the config */
8526 if (config->mode_changed &&
8527 intel_set_mode(save_set.crtc, save_set.mode,
8528 save_set.x, save_set.y, save_set.fb))
8529 DRM_ERROR("failed to restore config after modeset failure\n");
8532 intel_set_config_free(config);
8536 static const struct drm_crtc_funcs intel_crtc_funcs = {
8537 .cursor_set = intel_crtc_cursor_set,
8538 .cursor_move = intel_crtc_cursor_move,
8539 .gamma_set = intel_crtc_gamma_set,
8540 .set_config = intel_crtc_set_config,
8541 .destroy = intel_crtc_destroy,
8542 .page_flip = intel_crtc_page_flip,
8545 static void intel_cpu_pll_init(struct drm_device *dev)
8548 intel_ddi_pll_init(dev);
8551 static void intel_pch_pll_init(struct drm_device *dev)
8553 drm_i915_private_t *dev_priv = dev->dev_private;
8556 if (dev_priv->num_pch_pll == 0) {
8557 DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n");
8561 for (i = 0; i < dev_priv->num_pch_pll; i++) {
8562 dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i);
8563 dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i);
8564 dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i);
8568 static void intel_crtc_init(struct drm_device *dev, int pipe)
8570 drm_i915_private_t *dev_priv = dev->dev_private;
8571 struct intel_crtc *intel_crtc;
8574 intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
8575 if (intel_crtc == NULL)
8578 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
8580 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
8581 for (i = 0; i < 256; i++) {
8582 intel_crtc->lut_r[i] = i;
8583 intel_crtc->lut_g[i] = i;
8584 intel_crtc->lut_b[i] = i;
8587 /* Swap pipes & planes for FBC on pre-965 */
8588 intel_crtc->pipe = pipe;
8589 intel_crtc->plane = pipe;
8590 if (IS_MOBILE(dev) && IS_GEN3(dev)) {
8591 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
8592 intel_crtc->plane = !pipe;
8595 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
8596 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
8597 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
8598 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
8600 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
8603 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
8604 struct drm_file *file)
8606 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
8607 struct drm_mode_object *drmmode_obj;
8608 struct intel_crtc *crtc;
8610 if (!drm_core_check_feature(dev, DRIVER_MODESET))
8613 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
8614 DRM_MODE_OBJECT_CRTC);
8617 DRM_ERROR("no such CRTC id\n");
8621 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
8622 pipe_from_crtc_id->pipe = crtc->pipe;
8627 static int intel_encoder_clones(struct intel_encoder *encoder)
8629 struct drm_device *dev = encoder->base.dev;
8630 struct intel_encoder *source_encoder;
8634 list_for_each_entry(source_encoder,
8635 &dev->mode_config.encoder_list, base.head) {
8637 if (encoder == source_encoder)
8638 index_mask |= (1 << entry);
8640 /* Intel hw has only one MUX where enocoders could be cloned. */
8641 if (encoder->cloneable && source_encoder->cloneable)
8642 index_mask |= (1 << entry);
8650 static bool has_edp_a(struct drm_device *dev)
8652 struct drm_i915_private *dev_priv = dev->dev_private;
8654 if (!IS_MOBILE(dev))
8657 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
8661 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
8667 static void intel_setup_outputs(struct drm_device *dev)
8669 struct drm_i915_private *dev_priv = dev->dev_private;
8670 struct intel_encoder *encoder;
8671 bool dpd_is_edp = false;
8674 has_lvds = intel_lvds_init(dev);
8675 if (!has_lvds && !HAS_PCH_SPLIT(dev)) {
8676 /* disable the panel fitter on everything but LVDS */
8677 I915_WRITE(PFIT_CONTROL, 0);
8681 intel_crt_init(dev);
8686 /* Haswell uses DDI functions to detect digital outputs */
8687 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
8688 /* DDI A only supports eDP */
8690 intel_ddi_init(dev, PORT_A);
8692 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
8694 found = I915_READ(SFUSE_STRAP);
8696 if (found & SFUSE_STRAP_DDIB_DETECTED)
8697 intel_ddi_init(dev, PORT_B);
8698 if (found & SFUSE_STRAP_DDIC_DETECTED)
8699 intel_ddi_init(dev, PORT_C);
8700 if (found & SFUSE_STRAP_DDID_DETECTED)
8701 intel_ddi_init(dev, PORT_D);
8702 } else if (HAS_PCH_SPLIT(dev)) {
8704 dpd_is_edp = intel_dpd_is_edp(dev);
8707 intel_dp_init(dev, DP_A, PORT_A);
8709 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
8710 /* PCH SDVOB multiplex with HDMIB */
8711 found = intel_sdvo_init(dev, PCH_SDVOB, true);
8713 intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
8714 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
8715 intel_dp_init(dev, PCH_DP_B, PORT_B);
8718 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
8719 intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
8721 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
8722 intel_hdmi_init(dev, PCH_HDMID, PORT_D);
8724 if (I915_READ(PCH_DP_C) & DP_DETECTED)
8725 intel_dp_init(dev, PCH_DP_C, PORT_C);
8727 if (I915_READ(PCH_DP_D) & DP_DETECTED)
8728 intel_dp_init(dev, PCH_DP_D, PORT_D);
8729 } else if (IS_VALLEYVIEW(dev)) {
8730 /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */
8731 if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
8732 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C);
8734 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
8735 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
8737 if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
8738 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
8740 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
8743 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
8744 DRM_DEBUG_KMS("probing SDVOB\n");
8745 found = intel_sdvo_init(dev, GEN3_SDVOB, true);
8746 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
8747 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
8748 intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
8751 if (!found && SUPPORTS_INTEGRATED_DP(dev))
8752 intel_dp_init(dev, DP_B, PORT_B);
8755 /* Before G4X SDVOC doesn't have its own detect register */
8757 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
8758 DRM_DEBUG_KMS("probing SDVOC\n");
8759 found = intel_sdvo_init(dev, GEN3_SDVOC, false);
8762 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
8764 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
8765 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
8766 intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
8768 if (SUPPORTS_INTEGRATED_DP(dev))
8769 intel_dp_init(dev, DP_C, PORT_C);
8772 if (SUPPORTS_INTEGRATED_DP(dev) &&
8773 (I915_READ(DP_D) & DP_DETECTED))
8774 intel_dp_init(dev, DP_D, PORT_D);
8775 } else if (IS_GEN2(dev))
8776 intel_dvo_init(dev);
8778 if (SUPPORTS_TV(dev))
8781 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
8782 encoder->base.possible_crtcs = encoder->crtc_mask;
8783 encoder->base.possible_clones =
8784 intel_encoder_clones(encoder);
8787 intel_init_pch_refclk(dev);
8789 drm_helper_move_panel_connectors_to_head(dev);
8792 static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
8794 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
8796 drm_framebuffer_cleanup(fb);
8797 drm_gem_object_unreference_unlocked(&intel_fb->obj->base);
8802 static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
8803 struct drm_file *file,
8804 unsigned int *handle)
8806 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
8807 struct drm_i915_gem_object *obj = intel_fb->obj;
8809 return drm_gem_handle_create(file, &obj->base, handle);
8812 static const struct drm_framebuffer_funcs intel_fb_funcs = {
8813 .destroy = intel_user_framebuffer_destroy,
8814 .create_handle = intel_user_framebuffer_create_handle,
8817 int intel_framebuffer_init(struct drm_device *dev,
8818 struct intel_framebuffer *intel_fb,
8819 struct drm_mode_fb_cmd2 *mode_cmd,
8820 struct drm_i915_gem_object *obj)
8824 if (obj->tiling_mode == I915_TILING_Y) {
8825 DRM_DEBUG("hardware does not support tiling Y\n");
8829 if (mode_cmd->pitches[0] & 63) {
8830 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
8831 mode_cmd->pitches[0]);
8835 /* FIXME <= Gen4 stride limits are bit unclear */
8836 if (mode_cmd->pitches[0] > 32768) {
8837 DRM_DEBUG("pitch (%d) must be at less than 32768\n",
8838 mode_cmd->pitches[0]);
8842 if (obj->tiling_mode != I915_TILING_NONE &&
8843 mode_cmd->pitches[0] != obj->stride) {
8844 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
8845 mode_cmd->pitches[0], obj->stride);
8849 /* Reject formats not supported by any plane early. */
8850 switch (mode_cmd->pixel_format) {
8852 case DRM_FORMAT_RGB565:
8853 case DRM_FORMAT_XRGB8888:
8854 case DRM_FORMAT_ARGB8888:
8856 case DRM_FORMAT_XRGB1555:
8857 case DRM_FORMAT_ARGB1555:
8858 if (INTEL_INFO(dev)->gen > 3) {
8859 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
8863 case DRM_FORMAT_XBGR8888:
8864 case DRM_FORMAT_ABGR8888:
8865 case DRM_FORMAT_XRGB2101010:
8866 case DRM_FORMAT_ARGB2101010:
8867 case DRM_FORMAT_XBGR2101010:
8868 case DRM_FORMAT_ABGR2101010:
8869 if (INTEL_INFO(dev)->gen < 4) {
8870 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
8874 case DRM_FORMAT_YUYV:
8875 case DRM_FORMAT_UYVY:
8876 case DRM_FORMAT_YVYU:
8877 case DRM_FORMAT_VYUY:
8878 if (INTEL_INFO(dev)->gen < 5) {
8879 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
8884 DRM_DEBUG("unsupported pixel format 0x%08x\n", mode_cmd->pixel_format);
8888 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
8889 if (mode_cmd->offsets[0] != 0)
8892 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
8893 intel_fb->obj = obj;
8895 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
8897 DRM_ERROR("framebuffer init failed %d\n", ret);
8904 static struct drm_framebuffer *
8905 intel_user_framebuffer_create(struct drm_device *dev,
8906 struct drm_file *filp,
8907 struct drm_mode_fb_cmd2 *mode_cmd)
8909 struct drm_i915_gem_object *obj;
8911 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
8912 mode_cmd->handles[0]));
8913 if (&obj->base == NULL)
8914 return ERR_PTR(-ENOENT);
8916 return intel_framebuffer_create(dev, mode_cmd, obj);
8919 static const struct drm_mode_config_funcs intel_mode_funcs = {
8920 .fb_create = intel_user_framebuffer_create,
8921 .output_poll_changed = intel_fb_output_poll_changed,
8924 /* Set up chip specific display functions */
8925 static void intel_init_display(struct drm_device *dev)
8927 struct drm_i915_private *dev_priv = dev->dev_private;
8930 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
8931 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
8932 dev_priv->display.crtc_enable = haswell_crtc_enable;
8933 dev_priv->display.crtc_disable = haswell_crtc_disable;
8934 dev_priv->display.off = haswell_crtc_off;
8935 dev_priv->display.update_plane = ironlake_update_plane;
8936 } else if (HAS_PCH_SPLIT(dev)) {
8937 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
8938 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
8939 dev_priv->display.crtc_enable = ironlake_crtc_enable;
8940 dev_priv->display.crtc_disable = ironlake_crtc_disable;
8941 dev_priv->display.off = ironlake_crtc_off;
8942 dev_priv->display.update_plane = ironlake_update_plane;
8943 } else if (IS_VALLEYVIEW(dev)) {
8944 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
8945 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
8946 dev_priv->display.crtc_enable = valleyview_crtc_enable;
8947 dev_priv->display.crtc_disable = i9xx_crtc_disable;
8948 dev_priv->display.off = i9xx_crtc_off;
8949 dev_priv->display.update_plane = i9xx_update_plane;
8951 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
8952 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
8953 dev_priv->display.crtc_enable = i9xx_crtc_enable;
8954 dev_priv->display.crtc_disable = i9xx_crtc_disable;
8955 dev_priv->display.off = i9xx_crtc_off;
8956 dev_priv->display.update_plane = i9xx_update_plane;
8959 /* Returns the core display clock speed */
8960 if (IS_VALLEYVIEW(dev))
8961 dev_priv->display.get_display_clock_speed =
8962 valleyview_get_display_clock_speed;
8963 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
8964 dev_priv->display.get_display_clock_speed =
8965 i945_get_display_clock_speed;
8966 else if (IS_I915G(dev))
8967 dev_priv->display.get_display_clock_speed =
8968 i915_get_display_clock_speed;
8969 else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev))
8970 dev_priv->display.get_display_clock_speed =
8971 i9xx_misc_get_display_clock_speed;
8972 else if (IS_I915GM(dev))
8973 dev_priv->display.get_display_clock_speed =
8974 i915gm_get_display_clock_speed;
8975 else if (IS_I865G(dev))
8976 dev_priv->display.get_display_clock_speed =
8977 i865_get_display_clock_speed;
8978 else if (IS_I85X(dev))
8979 dev_priv->display.get_display_clock_speed =
8980 i855_get_display_clock_speed;
8982 dev_priv->display.get_display_clock_speed =
8983 i830_get_display_clock_speed;
8985 if (HAS_PCH_SPLIT(dev)) {
8987 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
8988 dev_priv->display.write_eld = ironlake_write_eld;
8989 } else if (IS_GEN6(dev)) {
8990 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
8991 dev_priv->display.write_eld = ironlake_write_eld;
8992 } else if (IS_IVYBRIDGE(dev)) {
8993 /* FIXME: detect B0+ stepping and use auto training */
8994 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
8995 dev_priv->display.write_eld = ironlake_write_eld;
8996 dev_priv->display.modeset_global_resources =
8997 ivb_modeset_global_resources;
8998 } else if (IS_HASWELL(dev)) {
8999 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
9000 dev_priv->display.write_eld = haswell_write_eld;
9001 dev_priv->display.modeset_global_resources =
9002 haswell_modeset_global_resources;
9004 } else if (IS_G4X(dev)) {
9005 dev_priv->display.write_eld = g4x_write_eld;
9008 /* Default just returns -ENODEV to indicate unsupported */
9009 dev_priv->display.queue_flip = intel_default_queue_flip;
9011 switch (INTEL_INFO(dev)->gen) {
9013 dev_priv->display.queue_flip = intel_gen2_queue_flip;
9017 dev_priv->display.queue_flip = intel_gen3_queue_flip;
9022 dev_priv->display.queue_flip = intel_gen4_queue_flip;
9026 dev_priv->display.queue_flip = intel_gen6_queue_flip;
9029 dev_priv->display.queue_flip = intel_gen7_queue_flip;
9035 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
9036 * resume, or other times. This quirk makes sure that's the case for
9039 static void quirk_pipea_force(struct drm_device *dev)
9041 struct drm_i915_private *dev_priv = dev->dev_private;
9043 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
9044 DRM_INFO("applying pipe a force quirk\n");
9048 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
9050 static void quirk_ssc_force_disable(struct drm_device *dev)
9052 struct drm_i915_private *dev_priv = dev->dev_private;
9053 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
9054 DRM_INFO("applying lvds SSC disable quirk\n");
9058 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
9061 static void quirk_invert_brightness(struct drm_device *dev)
9063 struct drm_i915_private *dev_priv = dev->dev_private;
9064 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
9065 DRM_INFO("applying inverted panel brightness quirk\n");
9068 struct intel_quirk {
9070 int subsystem_vendor;
9071 int subsystem_device;
9072 void (*hook)(struct drm_device *dev);
9075 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
9076 struct intel_dmi_quirk {
9077 void (*hook)(struct drm_device *dev);
9078 const struct dmi_system_id (*dmi_id_list)[];
9081 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
9083 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
9087 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
9089 .dmi_id_list = &(const struct dmi_system_id[]) {
9091 .callback = intel_dmi_reverse_brightness,
9092 .ident = "NCR Corporation",
9093 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
9094 DMI_MATCH(DMI_PRODUCT_NAME, ""),
9097 { } /* terminating entry */
9099 .hook = quirk_invert_brightness,
9103 static struct intel_quirk intel_quirks[] = {
9104 /* HP Mini needs pipe A force quirk (LP: #322104) */
9105 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
9107 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
9108 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
9110 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
9111 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
9113 /* 830/845 need to leave pipe A & dpll A up */
9114 { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
9115 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
9117 /* Lenovo U160 cannot use SSC on LVDS */
9118 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
9120 /* Sony Vaio Y cannot use SSC on LVDS */
9121 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
9123 /* Acer Aspire 5734Z must invert backlight brightness */
9124 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
9126 /* Acer/eMachines G725 */
9127 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
9129 /* Acer/eMachines e725 */
9130 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
9132 /* Acer/Packard Bell NCL20 */
9133 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
9135 /* Acer Aspire 4736Z */
9136 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
9139 static void intel_init_quirks(struct drm_device *dev)
9141 struct pci_dev *d = dev->pdev;
9144 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
9145 struct intel_quirk *q = &intel_quirks[i];
9147 if (d->device == q->device &&
9148 (d->subsystem_vendor == q->subsystem_vendor ||
9149 q->subsystem_vendor == PCI_ANY_ID) &&
9150 (d->subsystem_device == q->subsystem_device ||
9151 q->subsystem_device == PCI_ANY_ID))
9154 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
9155 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
9156 intel_dmi_quirks[i].hook(dev);
9160 /* Disable the VGA plane that we never use */
9161 static void i915_disable_vga(struct drm_device *dev)
9163 struct drm_i915_private *dev_priv = dev->dev_private;
9165 u32 vga_reg = i915_vgacntrl_reg(dev);
9167 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
9168 outb(SR01, VGA_SR_INDEX);
9169 sr1 = inb(VGA_SR_DATA);
9170 outb(sr1 | 1<<5, VGA_SR_DATA);
9171 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
9174 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
9175 POSTING_READ(vga_reg);
9178 void intel_modeset_init_hw(struct drm_device *dev)
9180 intel_init_power_well(dev);
9182 intel_prepare_ddi(dev);
9184 intel_init_clock_gating(dev);
9186 mutex_lock(&dev->struct_mutex);
9187 intel_enable_gt_powersave(dev);
9188 mutex_unlock(&dev->struct_mutex);
9191 void intel_modeset_suspend_hw(struct drm_device *dev)
9193 intel_suspend_hw(dev);
9196 void intel_modeset_init(struct drm_device *dev)
9198 struct drm_i915_private *dev_priv = dev->dev_private;
9201 drm_mode_config_init(dev);
9203 dev->mode_config.min_width = 0;
9204 dev->mode_config.min_height = 0;
9206 dev->mode_config.preferred_depth = 24;
9207 dev->mode_config.prefer_shadow = 1;
9209 dev->mode_config.funcs = &intel_mode_funcs;
9211 intel_init_quirks(dev);
9215 if (INTEL_INFO(dev)->num_pipes == 0)
9218 intel_init_display(dev);
9221 dev->mode_config.max_width = 2048;
9222 dev->mode_config.max_height = 2048;
9223 } else if (IS_GEN3(dev)) {
9224 dev->mode_config.max_width = 4096;
9225 dev->mode_config.max_height = 4096;
9227 dev->mode_config.max_width = 8192;
9228 dev->mode_config.max_height = 8192;
9230 dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
9232 DRM_DEBUG_KMS("%d display pipe%s available.\n",
9233 INTEL_INFO(dev)->num_pipes,
9234 INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
9236 for (i = 0; i < INTEL_INFO(dev)->num_pipes; i++) {
9237 intel_crtc_init(dev, i);
9238 for (j = 0; j < dev_priv->num_plane; j++) {
9239 ret = intel_plane_init(dev, i, j);
9241 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
9242 pipe_name(i), sprite_name(i, j), ret);
9246 intel_cpu_pll_init(dev);
9247 intel_pch_pll_init(dev);
9249 /* Just disable it once at startup */
9250 i915_disable_vga(dev);
9251 intel_setup_outputs(dev);
9253 /* Just in case the BIOS is doing something questionable. */
9254 intel_disable_fbc(dev);
9258 intel_connector_break_all_links(struct intel_connector *connector)
9260 connector->base.dpms = DRM_MODE_DPMS_OFF;
9261 connector->base.encoder = NULL;
9262 connector->encoder->connectors_active = false;
9263 connector->encoder->base.crtc = NULL;
9266 static void intel_enable_pipe_a(struct drm_device *dev)
9268 struct intel_connector *connector;
9269 struct drm_connector *crt = NULL;
9270 struct intel_load_detect_pipe load_detect_temp;
9272 /* We can't just switch on the pipe A, we need to set things up with a
9273 * proper mode and output configuration. As a gross hack, enable pipe A
9274 * by enabling the load detect pipe once. */
9275 list_for_each_entry(connector,
9276 &dev->mode_config.connector_list,
9278 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
9279 crt = &connector->base;
9287 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
9288 intel_release_load_detect_pipe(crt, &load_detect_temp);
9294 intel_check_plane_mapping(struct intel_crtc *crtc)
9296 struct drm_device *dev = crtc->base.dev;
9297 struct drm_i915_private *dev_priv = dev->dev_private;
9300 if (INTEL_INFO(dev)->num_pipes == 1)
9303 reg = DSPCNTR(!crtc->plane);
9304 val = I915_READ(reg);
9306 if ((val & DISPLAY_PLANE_ENABLE) &&
9307 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
9313 static void intel_sanitize_crtc(struct intel_crtc *crtc)
9315 struct drm_device *dev = crtc->base.dev;
9316 struct drm_i915_private *dev_priv = dev->dev_private;
9319 /* Clear any frame start delays used for debugging left by the BIOS */
9320 reg = PIPECONF(crtc->config.cpu_transcoder);
9321 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
9323 /* We need to sanitize the plane -> pipe mapping first because this will
9324 * disable the crtc (and hence change the state) if it is wrong. Note
9325 * that gen4+ has a fixed plane -> pipe mapping. */
9326 if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
9327 struct intel_connector *connector;
9330 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
9331 crtc->base.base.id);
9333 /* Pipe has the wrong plane attached and the plane is active.
9334 * Temporarily change the plane mapping and disable everything
9336 plane = crtc->plane;
9337 crtc->plane = !plane;
9338 dev_priv->display.crtc_disable(&crtc->base);
9339 crtc->plane = plane;
9341 /* ... and break all links. */
9342 list_for_each_entry(connector, &dev->mode_config.connector_list,
9344 if (connector->encoder->base.crtc != &crtc->base)
9347 intel_connector_break_all_links(connector);
9350 WARN_ON(crtc->active);
9351 crtc->base.enabled = false;
9354 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
9355 crtc->pipe == PIPE_A && !crtc->active) {
9356 /* BIOS forgot to enable pipe A, this mostly happens after
9357 * resume. Force-enable the pipe to fix this, the update_dpms
9358 * call below we restore the pipe to the right state, but leave
9359 * the required bits on. */
9360 intel_enable_pipe_a(dev);
9363 /* Adjust the state of the output pipe according to whether we
9364 * have active connectors/encoders. */
9365 intel_crtc_update_dpms(&crtc->base);
9367 if (crtc->active != crtc->base.enabled) {
9368 struct intel_encoder *encoder;
9370 /* This can happen either due to bugs in the get_hw_state
9371 * functions or because the pipe is force-enabled due to the
9373 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
9375 crtc->base.enabled ? "enabled" : "disabled",
9376 crtc->active ? "enabled" : "disabled");
9378 crtc->base.enabled = crtc->active;
9380 /* Because we only establish the connector -> encoder ->
9381 * crtc links if something is active, this means the
9382 * crtc is now deactivated. Break the links. connector
9383 * -> encoder links are only establish when things are
9384 * actually up, hence no need to break them. */
9385 WARN_ON(crtc->active);
9387 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
9388 WARN_ON(encoder->connectors_active);
9389 encoder->base.crtc = NULL;
9394 static void intel_sanitize_encoder(struct intel_encoder *encoder)
9396 struct intel_connector *connector;
9397 struct drm_device *dev = encoder->base.dev;
9399 /* We need to check both for a crtc link (meaning that the
9400 * encoder is active and trying to read from a pipe) and the
9401 * pipe itself being active. */
9402 bool has_active_crtc = encoder->base.crtc &&
9403 to_intel_crtc(encoder->base.crtc)->active;
9405 if (encoder->connectors_active && !has_active_crtc) {
9406 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
9407 encoder->base.base.id,
9408 drm_get_encoder_name(&encoder->base));
9410 /* Connector is active, but has no active pipe. This is
9411 * fallout from our resume register restoring. Disable
9412 * the encoder manually again. */
9413 if (encoder->base.crtc) {
9414 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
9415 encoder->base.base.id,
9416 drm_get_encoder_name(&encoder->base));
9417 encoder->disable(encoder);
9420 /* Inconsistent output/port/pipe state happens presumably due to
9421 * a bug in one of the get_hw_state functions. Or someplace else
9422 * in our code, like the register restore mess on resume. Clamp
9423 * things to off as a safer default. */
9424 list_for_each_entry(connector,
9425 &dev->mode_config.connector_list,
9427 if (connector->encoder != encoder)
9430 intel_connector_break_all_links(connector);
9433 /* Enabled encoders without active connectors will be fixed in
9434 * the crtc fixup. */
9437 void i915_redisable_vga(struct drm_device *dev)
9439 struct drm_i915_private *dev_priv = dev->dev_private;
9440 u32 vga_reg = i915_vgacntrl_reg(dev);
9442 if (I915_READ(vga_reg) != VGA_DISP_DISABLE) {
9443 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
9444 i915_disable_vga(dev);
9448 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
9449 * and i915 state tracking structures. */
9450 void intel_modeset_setup_hw_state(struct drm_device *dev,
9453 struct drm_i915_private *dev_priv = dev->dev_private;
9455 struct drm_plane *plane;
9456 struct intel_crtc *crtc;
9457 struct intel_encoder *encoder;
9458 struct intel_connector *connector;
9460 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9462 memset(&crtc->config, 0, sizeof(crtc->config));
9464 crtc->active = dev_priv->display.get_pipe_config(crtc,
9467 crtc->base.enabled = crtc->active;
9469 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
9471 crtc->active ? "enabled" : "disabled");
9475 intel_ddi_setup_hw_pll_state(dev);
9477 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9481 if (encoder->get_hw_state(encoder, &pipe)) {
9482 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
9483 encoder->base.crtc = &crtc->base;
9484 if (encoder->get_config)
9485 encoder->get_config(encoder, &crtc->config);
9487 encoder->base.crtc = NULL;
9490 encoder->connectors_active = false;
9491 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
9492 encoder->base.base.id,
9493 drm_get_encoder_name(&encoder->base),
9494 encoder->base.crtc ? "enabled" : "disabled",
9498 list_for_each_entry(connector, &dev->mode_config.connector_list,
9500 if (connector->get_hw_state(connector)) {
9501 connector->base.dpms = DRM_MODE_DPMS_ON;
9502 connector->encoder->connectors_active = true;
9503 connector->base.encoder = &connector->encoder->base;
9505 connector->base.dpms = DRM_MODE_DPMS_OFF;
9506 connector->base.encoder = NULL;
9508 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
9509 connector->base.base.id,
9510 drm_get_connector_name(&connector->base),
9511 connector->base.encoder ? "enabled" : "disabled");
9514 /* HW state is read out, now we need to sanitize this mess. */
9515 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9517 intel_sanitize_encoder(encoder);
9520 for_each_pipe(pipe) {
9521 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
9522 intel_sanitize_crtc(crtc);
9523 intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]");
9526 if (force_restore) {
9528 * We need to use raw interfaces for restoring state to avoid
9529 * checking (bogus) intermediate states.
9531 for_each_pipe(pipe) {
9532 struct drm_crtc *crtc =
9533 dev_priv->pipe_to_crtc_mapping[pipe];
9535 __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
9538 list_for_each_entry(plane, &dev->mode_config.plane_list, head)
9539 intel_plane_restore(plane);
9541 i915_redisable_vga(dev);
9543 intel_modeset_update_staged_output_state(dev);
9546 intel_modeset_check_state(dev);
9548 drm_mode_config_reset(dev);
9551 void intel_modeset_gem_init(struct drm_device *dev)
9553 intel_modeset_init_hw(dev);
9555 intel_setup_overlay(dev);
9557 intel_modeset_setup_hw_state(dev, false);
9560 void intel_modeset_cleanup(struct drm_device *dev)
9562 struct drm_i915_private *dev_priv = dev->dev_private;
9563 struct drm_crtc *crtc;
9564 struct intel_crtc *intel_crtc;
9567 * Interrupts and polling as the first thing to avoid creating havoc.
9568 * Too much stuff here (turning of rps, connectors, ...) would
9569 * experience fancy races otherwise.
9571 drm_irq_uninstall(dev);
9572 cancel_work_sync(&dev_priv->hotplug_work);
9574 * Due to the hpd irq storm handling the hotplug work can re-arm the
9575 * poll handlers. Hence disable polling after hpd handling is shut down.
9577 drm_kms_helper_poll_fini(dev);
9579 mutex_lock(&dev->struct_mutex);
9581 intel_unregister_dsm_handler();
9583 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
9584 /* Skip inactive CRTCs */
9588 intel_crtc = to_intel_crtc(crtc);
9589 intel_increase_pllclock(crtc);
9592 intel_disable_fbc(dev);
9594 intel_disable_gt_powersave(dev);
9596 ironlake_teardown_rc6(dev);
9598 mutex_unlock(&dev->struct_mutex);
9600 /* flush any delayed tasks or pending work */
9601 flush_scheduled_work();
9603 /* destroy backlight, if any, before the connectors */
9604 intel_panel_destroy_backlight(dev);
9606 drm_mode_config_cleanup(dev);
9608 intel_cleanup_overlay(dev);
9612 * Return which encoder is currently attached for connector.
9614 struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
9616 return &intel_attached_encoder(connector)->base;
9619 void intel_connector_attach_encoder(struct intel_connector *connector,
9620 struct intel_encoder *encoder)
9622 connector->encoder = encoder;
9623 drm_mode_connector_attach_encoder(&connector->base,
9628 * set vga decode state - true == enable VGA decode
9630 int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
9632 struct drm_i915_private *dev_priv = dev->dev_private;
9635 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
9637 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
9639 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
9640 pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
9644 #ifdef CONFIG_DEBUG_FS
9645 #include <linux/seq_file.h>
9647 struct intel_display_error_state {
9649 u32 power_well_driver;
9651 struct intel_cursor_error_state {
9656 } cursor[I915_MAX_PIPES];
9658 struct intel_pipe_error_state {
9659 enum transcoder cpu_transcoder;
9669 } pipe[I915_MAX_PIPES];
9671 struct intel_plane_error_state {
9679 } plane[I915_MAX_PIPES];
9682 struct intel_display_error_state *
9683 intel_display_capture_error_state(struct drm_device *dev)
9685 drm_i915_private_t *dev_priv = dev->dev_private;
9686 struct intel_display_error_state *error;
9687 enum transcoder cpu_transcoder;
9690 error = kmalloc(sizeof(*error), GFP_ATOMIC);
9694 if (HAS_POWER_WELL(dev))
9695 error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
9698 cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, i);
9699 error->pipe[i].cpu_transcoder = cpu_transcoder;
9701 if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
9702 error->cursor[i].control = I915_READ(CURCNTR(i));
9703 error->cursor[i].position = I915_READ(CURPOS(i));
9704 error->cursor[i].base = I915_READ(CURBASE(i));
9706 error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
9707 error->cursor[i].position = I915_READ(CURPOS_IVB(i));
9708 error->cursor[i].base = I915_READ(CURBASE_IVB(i));
9711 error->plane[i].control = I915_READ(DSPCNTR(i));
9712 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
9713 if (INTEL_INFO(dev)->gen <= 3) {
9714 error->plane[i].size = I915_READ(DSPSIZE(i));
9715 error->plane[i].pos = I915_READ(DSPPOS(i));
9717 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
9718 error->plane[i].addr = I915_READ(DSPADDR(i));
9719 if (INTEL_INFO(dev)->gen >= 4) {
9720 error->plane[i].surface = I915_READ(DSPSURF(i));
9721 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
9724 error->pipe[i].conf = I915_READ(PIPECONF(cpu_transcoder));
9725 error->pipe[i].source = I915_READ(PIPESRC(i));
9726 error->pipe[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
9727 error->pipe[i].hblank = I915_READ(HBLANK(cpu_transcoder));
9728 error->pipe[i].hsync = I915_READ(HSYNC(cpu_transcoder));
9729 error->pipe[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
9730 error->pipe[i].vblank = I915_READ(VBLANK(cpu_transcoder));
9731 error->pipe[i].vsync = I915_READ(VSYNC(cpu_transcoder));
9734 /* In the code above we read the registers without checking if the power
9735 * well was on, so here we have to clear the FPGA_DBG_RM_NOCLAIM bit to
9736 * prevent the next I915_WRITE from detecting it and printing an error
9738 if (HAS_POWER_WELL(dev))
9739 I915_WRITE_NOTRACE(FPGA_DBG, FPGA_DBG_RM_NOCLAIM);
9744 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
9747 intel_display_print_error_state(struct drm_i915_error_state_buf *m,
9748 struct drm_device *dev,
9749 struct intel_display_error_state *error)
9753 err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
9754 if (HAS_POWER_WELL(dev))
9755 err_printf(m, "PWR_WELL_CTL2: %08x\n",
9756 error->power_well_driver);
9758 err_printf(m, "Pipe [%d]:\n", i);
9759 err_printf(m, " CPU transcoder: %c\n",
9760 transcoder_name(error->pipe[i].cpu_transcoder));
9761 err_printf(m, " CONF: %08x\n", error->pipe[i].conf);
9762 err_printf(m, " SRC: %08x\n", error->pipe[i].source);
9763 err_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal);
9764 err_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank);
9765 err_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync);
9766 err_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal);
9767 err_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank);
9768 err_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync);
9770 err_printf(m, "Plane [%d]:\n", i);
9771 err_printf(m, " CNTR: %08x\n", error->plane[i].control);
9772 err_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
9773 if (INTEL_INFO(dev)->gen <= 3) {
9774 err_printf(m, " SIZE: %08x\n", error->plane[i].size);
9775 err_printf(m, " POS: %08x\n", error->plane[i].pos);
9777 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
9778 err_printf(m, " ADDR: %08x\n", error->plane[i].addr);
9779 if (INTEL_INFO(dev)->gen >= 4) {
9780 err_printf(m, " SURF: %08x\n", error->plane[i].surface);
9781 err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
9784 err_printf(m, "Cursor [%d]:\n", i);
9785 err_printf(m, " CNTR: %08x\n", error->cursor[i].control);
9786 err_printf(m, " POS: %08x\n", error->cursor[i].position);
9787 err_printf(m, " BASE: %08x\n", error->cursor[i].base);