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 static void intel_increase_pllclock(struct drm_crtc *crtc);
45 static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on);
47 static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
48 struct intel_crtc_config *pipe_config);
49 static void ironlake_pch_clock_get(struct intel_crtc *crtc,
50 struct intel_crtc_config *pipe_config);
52 static int intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
53 int x, int y, struct drm_framebuffer *old_fb);
65 typedef struct intel_limit intel_limit_t;
67 intel_range_t dot, vco, n, m, m1, m2, p, p1;
72 intel_pch_rawclk(struct drm_device *dev)
74 struct drm_i915_private *dev_priv = dev->dev_private;
76 WARN_ON(!HAS_PCH_SPLIT(dev));
78 return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK;
81 static inline u32 /* units of 100MHz */
82 intel_fdi_link_freq(struct drm_device *dev)
85 struct drm_i915_private *dev_priv = dev->dev_private;
86 return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2;
91 static const intel_limit_t intel_limits_i8xx_dac = {
92 .dot = { .min = 25000, .max = 350000 },
93 .vco = { .min = 930000, .max = 1400000 },
94 .n = { .min = 3, .max = 16 },
95 .m = { .min = 96, .max = 140 },
96 .m1 = { .min = 18, .max = 26 },
97 .m2 = { .min = 6, .max = 16 },
98 .p = { .min = 4, .max = 128 },
99 .p1 = { .min = 2, .max = 33 },
100 .p2 = { .dot_limit = 165000,
101 .p2_slow = 4, .p2_fast = 2 },
104 static const intel_limit_t intel_limits_i8xx_dvo = {
105 .dot = { .min = 25000, .max = 350000 },
106 .vco = { .min = 930000, .max = 1400000 },
107 .n = { .min = 3, .max = 16 },
108 .m = { .min = 96, .max = 140 },
109 .m1 = { .min = 18, .max = 26 },
110 .m2 = { .min = 6, .max = 16 },
111 .p = { .min = 4, .max = 128 },
112 .p1 = { .min = 2, .max = 33 },
113 .p2 = { .dot_limit = 165000,
114 .p2_slow = 4, .p2_fast = 4 },
117 static const intel_limit_t intel_limits_i8xx_lvds = {
118 .dot = { .min = 25000, .max = 350000 },
119 .vco = { .min = 930000, .max = 1400000 },
120 .n = { .min = 3, .max = 16 },
121 .m = { .min = 96, .max = 140 },
122 .m1 = { .min = 18, .max = 26 },
123 .m2 = { .min = 6, .max = 16 },
124 .p = { .min = 4, .max = 128 },
125 .p1 = { .min = 1, .max = 6 },
126 .p2 = { .dot_limit = 165000,
127 .p2_slow = 14, .p2_fast = 7 },
130 static const intel_limit_t intel_limits_i9xx_sdvo = {
131 .dot = { .min = 20000, .max = 400000 },
132 .vco = { .min = 1400000, .max = 2800000 },
133 .n = { .min = 1, .max = 6 },
134 .m = { .min = 70, .max = 120 },
135 .m1 = { .min = 8, .max = 18 },
136 .m2 = { .min = 3, .max = 7 },
137 .p = { .min = 5, .max = 80 },
138 .p1 = { .min = 1, .max = 8 },
139 .p2 = { .dot_limit = 200000,
140 .p2_slow = 10, .p2_fast = 5 },
143 static const intel_limit_t intel_limits_i9xx_lvds = {
144 .dot = { .min = 20000, .max = 400000 },
145 .vco = { .min = 1400000, .max = 2800000 },
146 .n = { .min = 1, .max = 6 },
147 .m = { .min = 70, .max = 120 },
148 .m1 = { .min = 8, .max = 18 },
149 .m2 = { .min = 3, .max = 7 },
150 .p = { .min = 7, .max = 98 },
151 .p1 = { .min = 1, .max = 8 },
152 .p2 = { .dot_limit = 112000,
153 .p2_slow = 14, .p2_fast = 7 },
157 static const intel_limit_t intel_limits_g4x_sdvo = {
158 .dot = { .min = 25000, .max = 270000 },
159 .vco = { .min = 1750000, .max = 3500000},
160 .n = { .min = 1, .max = 4 },
161 .m = { .min = 104, .max = 138 },
162 .m1 = { .min = 17, .max = 23 },
163 .m2 = { .min = 5, .max = 11 },
164 .p = { .min = 10, .max = 30 },
165 .p1 = { .min = 1, .max = 3},
166 .p2 = { .dot_limit = 270000,
172 static const intel_limit_t intel_limits_g4x_hdmi = {
173 .dot = { .min = 22000, .max = 400000 },
174 .vco = { .min = 1750000, .max = 3500000},
175 .n = { .min = 1, .max = 4 },
176 .m = { .min = 104, .max = 138 },
177 .m1 = { .min = 16, .max = 23 },
178 .m2 = { .min = 5, .max = 11 },
179 .p = { .min = 5, .max = 80 },
180 .p1 = { .min = 1, .max = 8},
181 .p2 = { .dot_limit = 165000,
182 .p2_slow = 10, .p2_fast = 5 },
185 static const intel_limit_t intel_limits_g4x_single_channel_lvds = {
186 .dot = { .min = 20000, .max = 115000 },
187 .vco = { .min = 1750000, .max = 3500000 },
188 .n = { .min = 1, .max = 3 },
189 .m = { .min = 104, .max = 138 },
190 .m1 = { .min = 17, .max = 23 },
191 .m2 = { .min = 5, .max = 11 },
192 .p = { .min = 28, .max = 112 },
193 .p1 = { .min = 2, .max = 8 },
194 .p2 = { .dot_limit = 0,
195 .p2_slow = 14, .p2_fast = 14
199 static const intel_limit_t intel_limits_g4x_dual_channel_lvds = {
200 .dot = { .min = 80000, .max = 224000 },
201 .vco = { .min = 1750000, .max = 3500000 },
202 .n = { .min = 1, .max = 3 },
203 .m = { .min = 104, .max = 138 },
204 .m1 = { .min = 17, .max = 23 },
205 .m2 = { .min = 5, .max = 11 },
206 .p = { .min = 14, .max = 42 },
207 .p1 = { .min = 2, .max = 6 },
208 .p2 = { .dot_limit = 0,
209 .p2_slow = 7, .p2_fast = 7
213 static const intel_limit_t intel_limits_pineview_sdvo = {
214 .dot = { .min = 20000, .max = 400000},
215 .vco = { .min = 1700000, .max = 3500000 },
216 /* Pineview's Ncounter is a ring counter */
217 .n = { .min = 3, .max = 6 },
218 .m = { .min = 2, .max = 256 },
219 /* Pineview only has one combined m divider, which we treat as m2. */
220 .m1 = { .min = 0, .max = 0 },
221 .m2 = { .min = 0, .max = 254 },
222 .p = { .min = 5, .max = 80 },
223 .p1 = { .min = 1, .max = 8 },
224 .p2 = { .dot_limit = 200000,
225 .p2_slow = 10, .p2_fast = 5 },
228 static const intel_limit_t intel_limits_pineview_lvds = {
229 .dot = { .min = 20000, .max = 400000 },
230 .vco = { .min = 1700000, .max = 3500000 },
231 .n = { .min = 3, .max = 6 },
232 .m = { .min = 2, .max = 256 },
233 .m1 = { .min = 0, .max = 0 },
234 .m2 = { .min = 0, .max = 254 },
235 .p = { .min = 7, .max = 112 },
236 .p1 = { .min = 1, .max = 8 },
237 .p2 = { .dot_limit = 112000,
238 .p2_slow = 14, .p2_fast = 14 },
241 /* Ironlake / Sandybridge
243 * We calculate clock using (register_value + 2) for N/M1/M2, so here
244 * the range value for them is (actual_value - 2).
246 static const intel_limit_t intel_limits_ironlake_dac = {
247 .dot = { .min = 25000, .max = 350000 },
248 .vco = { .min = 1760000, .max = 3510000 },
249 .n = { .min = 1, .max = 5 },
250 .m = { .min = 79, .max = 127 },
251 .m1 = { .min = 12, .max = 22 },
252 .m2 = { .min = 5, .max = 9 },
253 .p = { .min = 5, .max = 80 },
254 .p1 = { .min = 1, .max = 8 },
255 .p2 = { .dot_limit = 225000,
256 .p2_slow = 10, .p2_fast = 5 },
259 static const intel_limit_t intel_limits_ironlake_single_lvds = {
260 .dot = { .min = 25000, .max = 350000 },
261 .vco = { .min = 1760000, .max = 3510000 },
262 .n = { .min = 1, .max = 3 },
263 .m = { .min = 79, .max = 118 },
264 .m1 = { .min = 12, .max = 22 },
265 .m2 = { .min = 5, .max = 9 },
266 .p = { .min = 28, .max = 112 },
267 .p1 = { .min = 2, .max = 8 },
268 .p2 = { .dot_limit = 225000,
269 .p2_slow = 14, .p2_fast = 14 },
272 static const intel_limit_t intel_limits_ironlake_dual_lvds = {
273 .dot = { .min = 25000, .max = 350000 },
274 .vco = { .min = 1760000, .max = 3510000 },
275 .n = { .min = 1, .max = 3 },
276 .m = { .min = 79, .max = 127 },
277 .m1 = { .min = 12, .max = 22 },
278 .m2 = { .min = 5, .max = 9 },
279 .p = { .min = 14, .max = 56 },
280 .p1 = { .min = 2, .max = 8 },
281 .p2 = { .dot_limit = 225000,
282 .p2_slow = 7, .p2_fast = 7 },
285 /* LVDS 100mhz refclk limits. */
286 static const intel_limit_t intel_limits_ironlake_single_lvds_100m = {
287 .dot = { .min = 25000, .max = 350000 },
288 .vco = { .min = 1760000, .max = 3510000 },
289 .n = { .min = 1, .max = 2 },
290 .m = { .min = 79, .max = 126 },
291 .m1 = { .min = 12, .max = 22 },
292 .m2 = { .min = 5, .max = 9 },
293 .p = { .min = 28, .max = 112 },
294 .p1 = { .min = 2, .max = 8 },
295 .p2 = { .dot_limit = 225000,
296 .p2_slow = 14, .p2_fast = 14 },
299 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = {
300 .dot = { .min = 25000, .max = 350000 },
301 .vco = { .min = 1760000, .max = 3510000 },
302 .n = { .min = 1, .max = 3 },
303 .m = { .min = 79, .max = 126 },
304 .m1 = { .min = 12, .max = 22 },
305 .m2 = { .min = 5, .max = 9 },
306 .p = { .min = 14, .max = 42 },
307 .p1 = { .min = 2, .max = 6 },
308 .p2 = { .dot_limit = 225000,
309 .p2_slow = 7, .p2_fast = 7 },
312 static const intel_limit_t intel_limits_vlv = {
314 * These are the data rate limits (measured in fast clocks)
315 * since those are the strictest limits we have. The fast
316 * clock and actual rate limits are more relaxed, so checking
317 * them would make no difference.
319 .dot = { .min = 25000 * 5, .max = 270000 * 5 },
320 .vco = { .min = 4000000, .max = 6000000 },
321 .n = { .min = 1, .max = 7 },
322 .m1 = { .min = 2, .max = 3 },
323 .m2 = { .min = 11, .max = 156 },
324 .p1 = { .min = 2, .max = 3 },
325 .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */
328 static void vlv_clock(int refclk, intel_clock_t *clock)
330 clock->m = clock->m1 * clock->m2;
331 clock->p = clock->p1 * clock->p2;
332 clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
333 clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
337 * Returns whether any output on the specified pipe is of the specified type
339 static bool intel_pipe_has_type(struct drm_crtc *crtc, int type)
341 struct drm_device *dev = crtc->dev;
342 struct intel_encoder *encoder;
344 for_each_encoder_on_crtc(dev, crtc, encoder)
345 if (encoder->type == type)
351 static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
354 struct drm_device *dev = crtc->dev;
355 const intel_limit_t *limit;
357 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
358 if (intel_is_dual_link_lvds(dev)) {
359 if (refclk == 100000)
360 limit = &intel_limits_ironlake_dual_lvds_100m;
362 limit = &intel_limits_ironlake_dual_lvds;
364 if (refclk == 100000)
365 limit = &intel_limits_ironlake_single_lvds_100m;
367 limit = &intel_limits_ironlake_single_lvds;
370 limit = &intel_limits_ironlake_dac;
375 static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
377 struct drm_device *dev = crtc->dev;
378 const intel_limit_t *limit;
380 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
381 if (intel_is_dual_link_lvds(dev))
382 limit = &intel_limits_g4x_dual_channel_lvds;
384 limit = &intel_limits_g4x_single_channel_lvds;
385 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
386 intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
387 limit = &intel_limits_g4x_hdmi;
388 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
389 limit = &intel_limits_g4x_sdvo;
390 } else /* The option is for other outputs */
391 limit = &intel_limits_i9xx_sdvo;
396 static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
398 struct drm_device *dev = crtc->dev;
399 const intel_limit_t *limit;
401 if (HAS_PCH_SPLIT(dev))
402 limit = intel_ironlake_limit(crtc, refclk);
403 else if (IS_G4X(dev)) {
404 limit = intel_g4x_limit(crtc);
405 } else if (IS_PINEVIEW(dev)) {
406 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
407 limit = &intel_limits_pineview_lvds;
409 limit = &intel_limits_pineview_sdvo;
410 } else if (IS_VALLEYVIEW(dev)) {
411 limit = &intel_limits_vlv;
412 } else if (!IS_GEN2(dev)) {
413 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
414 limit = &intel_limits_i9xx_lvds;
416 limit = &intel_limits_i9xx_sdvo;
418 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
419 limit = &intel_limits_i8xx_lvds;
420 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO))
421 limit = &intel_limits_i8xx_dvo;
423 limit = &intel_limits_i8xx_dac;
428 /* m1 is reserved as 0 in Pineview, n is a ring counter */
429 static void pineview_clock(int refclk, intel_clock_t *clock)
431 clock->m = clock->m2 + 2;
432 clock->p = clock->p1 * clock->p2;
433 clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
434 clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
437 static uint32_t i9xx_dpll_compute_m(struct dpll *dpll)
439 return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
442 static void i9xx_clock(int refclk, intel_clock_t *clock)
444 clock->m = i9xx_dpll_compute_m(clock);
445 clock->p = clock->p1 * clock->p2;
446 clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2);
447 clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
450 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
452 * Returns whether the given set of divisors are valid for a given refclk with
453 * the given connectors.
456 static bool intel_PLL_is_valid(struct drm_device *dev,
457 const intel_limit_t *limit,
458 const intel_clock_t *clock)
460 if (clock->n < limit->n.min || limit->n.max < clock->n)
461 INTELPllInvalid("n out of range\n");
462 if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
463 INTELPllInvalid("p1 out of range\n");
464 if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
465 INTELPllInvalid("m2 out of range\n");
466 if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
467 INTELPllInvalid("m1 out of range\n");
469 if (!IS_PINEVIEW(dev) && !IS_VALLEYVIEW(dev))
470 if (clock->m1 <= clock->m2)
471 INTELPllInvalid("m1 <= m2\n");
473 if (!IS_VALLEYVIEW(dev)) {
474 if (clock->p < limit->p.min || limit->p.max < clock->p)
475 INTELPllInvalid("p out of range\n");
476 if (clock->m < limit->m.min || limit->m.max < clock->m)
477 INTELPllInvalid("m out of range\n");
480 if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
481 INTELPllInvalid("vco out of range\n");
482 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
483 * connector, etc., rather than just a single range.
485 if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
486 INTELPllInvalid("dot out of range\n");
492 i9xx_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
493 int target, int refclk, intel_clock_t *match_clock,
494 intel_clock_t *best_clock)
496 struct drm_device *dev = crtc->dev;
500 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
502 * For LVDS just rely on its current settings for dual-channel.
503 * We haven't figured out how to reliably set up different
504 * single/dual channel state, if we even can.
506 if (intel_is_dual_link_lvds(dev))
507 clock.p2 = limit->p2.p2_fast;
509 clock.p2 = limit->p2.p2_slow;
511 if (target < limit->p2.dot_limit)
512 clock.p2 = limit->p2.p2_slow;
514 clock.p2 = limit->p2.p2_fast;
517 memset(best_clock, 0, sizeof(*best_clock));
519 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
521 for (clock.m2 = limit->m2.min;
522 clock.m2 <= limit->m2.max; clock.m2++) {
523 if (clock.m2 >= clock.m1)
525 for (clock.n = limit->n.min;
526 clock.n <= limit->n.max; clock.n++) {
527 for (clock.p1 = limit->p1.min;
528 clock.p1 <= limit->p1.max; clock.p1++) {
531 i9xx_clock(refclk, &clock);
532 if (!intel_PLL_is_valid(dev, limit,
536 clock.p != match_clock->p)
539 this_err = abs(clock.dot - target);
540 if (this_err < err) {
549 return (err != target);
553 pnv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
554 int target, int refclk, intel_clock_t *match_clock,
555 intel_clock_t *best_clock)
557 struct drm_device *dev = crtc->dev;
561 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
563 * For LVDS just rely on its current settings for dual-channel.
564 * We haven't figured out how to reliably set up different
565 * single/dual channel state, if we even can.
567 if (intel_is_dual_link_lvds(dev))
568 clock.p2 = limit->p2.p2_fast;
570 clock.p2 = limit->p2.p2_slow;
572 if (target < limit->p2.dot_limit)
573 clock.p2 = limit->p2.p2_slow;
575 clock.p2 = limit->p2.p2_fast;
578 memset(best_clock, 0, sizeof(*best_clock));
580 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
582 for (clock.m2 = limit->m2.min;
583 clock.m2 <= limit->m2.max; clock.m2++) {
584 for (clock.n = limit->n.min;
585 clock.n <= limit->n.max; clock.n++) {
586 for (clock.p1 = limit->p1.min;
587 clock.p1 <= limit->p1.max; clock.p1++) {
590 pineview_clock(refclk, &clock);
591 if (!intel_PLL_is_valid(dev, limit,
595 clock.p != match_clock->p)
598 this_err = abs(clock.dot - target);
599 if (this_err < err) {
608 return (err != target);
612 g4x_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
613 int target, int refclk, intel_clock_t *match_clock,
614 intel_clock_t *best_clock)
616 struct drm_device *dev = crtc->dev;
620 /* approximately equals target * 0.00585 */
621 int err_most = (target >> 8) + (target >> 9);
624 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
625 if (intel_is_dual_link_lvds(dev))
626 clock.p2 = limit->p2.p2_fast;
628 clock.p2 = limit->p2.p2_slow;
630 if (target < limit->p2.dot_limit)
631 clock.p2 = limit->p2.p2_slow;
633 clock.p2 = limit->p2.p2_fast;
636 memset(best_clock, 0, sizeof(*best_clock));
637 max_n = limit->n.max;
638 /* based on hardware requirement, prefer smaller n to precision */
639 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
640 /* based on hardware requirement, prefere larger m1,m2 */
641 for (clock.m1 = limit->m1.max;
642 clock.m1 >= limit->m1.min; clock.m1--) {
643 for (clock.m2 = limit->m2.max;
644 clock.m2 >= limit->m2.min; clock.m2--) {
645 for (clock.p1 = limit->p1.max;
646 clock.p1 >= limit->p1.min; clock.p1--) {
649 i9xx_clock(refclk, &clock);
650 if (!intel_PLL_is_valid(dev, limit,
654 this_err = abs(clock.dot - target);
655 if (this_err < err_most) {
669 vlv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
670 int target, int refclk, intel_clock_t *match_clock,
671 intel_clock_t *best_clock)
673 struct drm_device *dev = crtc->dev;
675 unsigned int bestppm = 1000000;
676 /* min update 19.2 MHz */
677 int max_n = min(limit->n.max, refclk / 19200);
680 target *= 5; /* fast clock */
682 memset(best_clock, 0, sizeof(*best_clock));
684 /* based on hardware requirement, prefer smaller n to precision */
685 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
686 for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
687 for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow;
688 clock.p2 -= clock.p2 > 10 ? 2 : 1) {
689 clock.p = clock.p1 * clock.p2;
690 /* based on hardware requirement, prefer bigger m1,m2 values */
691 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) {
692 unsigned int ppm, diff;
694 clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n,
697 vlv_clock(refclk, &clock);
699 if (!intel_PLL_is_valid(dev, limit,
703 diff = abs(clock.dot - target);
704 ppm = div_u64(1000000ULL * diff, target);
706 if (ppm < 100 && clock.p > best_clock->p) {
712 if (bestppm >= 10 && ppm < bestppm - 10) {
725 bool intel_crtc_active(struct drm_crtc *crtc)
727 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
729 /* Be paranoid as we can arrive here with only partial
730 * state retrieved from the hardware during setup.
732 * We can ditch the adjusted_mode.crtc_clock check as soon
733 * as Haswell has gained clock readout/fastboot support.
735 * We can ditch the crtc->fb check as soon as we can
736 * properly reconstruct framebuffers.
738 return intel_crtc->active && crtc->fb &&
739 intel_crtc->config.adjusted_mode.crtc_clock;
742 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
745 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
746 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
748 return intel_crtc->config.cpu_transcoder;
751 static void g4x_wait_for_vblank(struct drm_device *dev, int pipe)
753 struct drm_i915_private *dev_priv = dev->dev_private;
754 u32 frame, frame_reg = PIPE_FRMCOUNT_GM45(pipe);
756 frame = I915_READ(frame_reg);
758 if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50))
759 DRM_DEBUG_KMS("vblank wait timed out\n");
763 * intel_wait_for_vblank - wait for vblank on a given pipe
765 * @pipe: pipe to wait for
767 * Wait for vblank to occur on a given pipe. Needed for various bits of
770 void intel_wait_for_vblank(struct drm_device *dev, int pipe)
772 struct drm_i915_private *dev_priv = dev->dev_private;
773 int pipestat_reg = PIPESTAT(pipe);
775 if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) {
776 g4x_wait_for_vblank(dev, pipe);
780 /* Clear existing vblank status. Note this will clear any other
781 * sticky status fields as well.
783 * This races with i915_driver_irq_handler() with the result
784 * that either function could miss a vblank event. Here it is not
785 * fatal, as we will either wait upon the next vblank interrupt or
786 * timeout. Generally speaking intel_wait_for_vblank() is only
787 * called during modeset at which time the GPU should be idle and
788 * should *not* be performing page flips and thus not waiting on
790 * Currently, the result of us stealing a vblank from the irq
791 * handler is that a single frame will be skipped during swapbuffers.
793 I915_WRITE(pipestat_reg,
794 I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS);
796 /* Wait for vblank interrupt bit to set */
797 if (wait_for(I915_READ(pipestat_reg) &
798 PIPE_VBLANK_INTERRUPT_STATUS,
800 DRM_DEBUG_KMS("vblank wait timed out\n");
803 static bool pipe_dsl_stopped(struct drm_device *dev, enum pipe pipe)
805 struct drm_i915_private *dev_priv = dev->dev_private;
806 u32 reg = PIPEDSL(pipe);
811 line_mask = DSL_LINEMASK_GEN2;
813 line_mask = DSL_LINEMASK_GEN3;
815 line1 = I915_READ(reg) & line_mask;
817 line2 = I915_READ(reg) & line_mask;
819 return line1 == line2;
823 * intel_wait_for_pipe_off - wait for pipe to turn off
825 * @pipe: pipe to wait for
827 * After disabling a pipe, we can't wait for vblank in the usual way,
828 * spinning on the vblank interrupt status bit, since we won't actually
829 * see an interrupt when the pipe is disabled.
832 * wait for the pipe register state bit to turn off
835 * wait for the display line value to settle (it usually
836 * ends up stopping at the start of the next frame).
839 void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
841 struct drm_i915_private *dev_priv = dev->dev_private;
842 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
845 if (INTEL_INFO(dev)->gen >= 4) {
846 int reg = PIPECONF(cpu_transcoder);
848 /* Wait for the Pipe State to go off */
849 if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0,
851 WARN(1, "pipe_off wait timed out\n");
853 /* Wait for the display line to settle */
854 if (wait_for(pipe_dsl_stopped(dev, pipe), 100))
855 WARN(1, "pipe_off wait timed out\n");
860 * ibx_digital_port_connected - is the specified port connected?
861 * @dev_priv: i915 private structure
862 * @port: the port to test
864 * Returns true if @port is connected, false otherwise.
866 bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
867 struct intel_digital_port *port)
871 if (HAS_PCH_IBX(dev_priv->dev)) {
874 bit = SDE_PORTB_HOTPLUG;
877 bit = SDE_PORTC_HOTPLUG;
880 bit = SDE_PORTD_HOTPLUG;
888 bit = SDE_PORTB_HOTPLUG_CPT;
891 bit = SDE_PORTC_HOTPLUG_CPT;
894 bit = SDE_PORTD_HOTPLUG_CPT;
901 return I915_READ(SDEISR) & bit;
904 static const char *state_string(bool enabled)
906 return enabled ? "on" : "off";
909 /* Only for pre-ILK configs */
910 void assert_pll(struct drm_i915_private *dev_priv,
911 enum pipe pipe, bool state)
918 val = I915_READ(reg);
919 cur_state = !!(val & DPLL_VCO_ENABLE);
920 WARN(cur_state != state,
921 "PLL state assertion failure (expected %s, current %s)\n",
922 state_string(state), state_string(cur_state));
925 /* XXX: the dsi pll is shared between MIPI DSI ports */
926 static void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state)
931 mutex_lock(&dev_priv->dpio_lock);
932 val = vlv_cck_read(dev_priv, CCK_REG_DSI_PLL_CONTROL);
933 mutex_unlock(&dev_priv->dpio_lock);
935 cur_state = val & DSI_PLL_VCO_EN;
936 WARN(cur_state != state,
937 "DSI PLL state assertion failure (expected %s, current %s)\n",
938 state_string(state), state_string(cur_state));
940 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
941 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
943 struct intel_shared_dpll *
944 intel_crtc_to_shared_dpll(struct intel_crtc *crtc)
946 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
948 if (crtc->config.shared_dpll < 0)
951 return &dev_priv->shared_dplls[crtc->config.shared_dpll];
955 void assert_shared_dpll(struct drm_i915_private *dev_priv,
956 struct intel_shared_dpll *pll,
960 struct intel_dpll_hw_state hw_state;
962 if (HAS_PCH_LPT(dev_priv->dev)) {
963 DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
968 "asserting DPLL %s with no DPLL\n", state_string(state)))
971 cur_state = pll->get_hw_state(dev_priv, pll, &hw_state);
972 WARN(cur_state != state,
973 "%s assertion failure (expected %s, current %s)\n",
974 pll->name, state_string(state), state_string(cur_state));
977 static void assert_fdi_tx(struct drm_i915_private *dev_priv,
978 enum pipe pipe, bool state)
983 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
986 if (HAS_DDI(dev_priv->dev)) {
987 /* DDI does not have a specific FDI_TX register */
988 reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
989 val = I915_READ(reg);
990 cur_state = !!(val & TRANS_DDI_FUNC_ENABLE);
992 reg = FDI_TX_CTL(pipe);
993 val = I915_READ(reg);
994 cur_state = !!(val & FDI_TX_ENABLE);
996 WARN(cur_state != state,
997 "FDI TX state assertion failure (expected %s, current %s)\n",
998 state_string(state), state_string(cur_state));
1000 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1001 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1003 static void assert_fdi_rx(struct drm_i915_private *dev_priv,
1004 enum pipe pipe, bool state)
1010 reg = FDI_RX_CTL(pipe);
1011 val = I915_READ(reg);
1012 cur_state = !!(val & FDI_RX_ENABLE);
1013 WARN(cur_state != state,
1014 "FDI RX state assertion failure (expected %s, current %s)\n",
1015 state_string(state), state_string(cur_state));
1017 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1018 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1020 static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
1026 /* ILK FDI PLL is always enabled */
1027 if (dev_priv->info->gen == 5)
1030 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1031 if (HAS_DDI(dev_priv->dev))
1034 reg = FDI_TX_CTL(pipe);
1035 val = I915_READ(reg);
1036 WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n");
1039 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1040 enum pipe pipe, bool state)
1046 reg = FDI_RX_CTL(pipe);
1047 val = I915_READ(reg);
1048 cur_state = !!(val & FDI_RX_PLL_ENABLE);
1049 WARN(cur_state != state,
1050 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1051 state_string(state), state_string(cur_state));
1054 static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1057 int pp_reg, lvds_reg;
1059 enum pipe panel_pipe = PIPE_A;
1062 if (HAS_PCH_SPLIT(dev_priv->dev)) {
1063 pp_reg = PCH_PP_CONTROL;
1064 lvds_reg = PCH_LVDS;
1066 pp_reg = PP_CONTROL;
1070 val = I915_READ(pp_reg);
1071 if (!(val & PANEL_POWER_ON) ||
1072 ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS))
1075 if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT)
1076 panel_pipe = PIPE_B;
1078 WARN(panel_pipe == pipe && locked,
1079 "panel assertion failure, pipe %c regs locked\n",
1083 static void assert_cursor(struct drm_i915_private *dev_priv,
1084 enum pipe pipe, bool state)
1086 struct drm_device *dev = dev_priv->dev;
1089 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1090 cur_state = I915_READ(CURCNTR_IVB(pipe)) & CURSOR_MODE;
1091 else if (IS_845G(dev) || IS_I865G(dev))
1092 cur_state = I915_READ(_CURACNTR) & CURSOR_ENABLE;
1094 cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
1096 WARN(cur_state != state,
1097 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1098 pipe_name(pipe), state_string(state), state_string(cur_state));
1100 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1101 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1103 void assert_pipe(struct drm_i915_private *dev_priv,
1104 enum pipe pipe, bool state)
1109 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1112 /* if we need the pipe A quirk it must be always on */
1113 if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
1116 if (!intel_display_power_enabled(dev_priv->dev,
1117 POWER_DOMAIN_TRANSCODER(cpu_transcoder))) {
1120 reg = PIPECONF(cpu_transcoder);
1121 val = I915_READ(reg);
1122 cur_state = !!(val & PIPECONF_ENABLE);
1125 WARN(cur_state != state,
1126 "pipe %c assertion failure (expected %s, current %s)\n",
1127 pipe_name(pipe), state_string(state), state_string(cur_state));
1130 static void assert_plane(struct drm_i915_private *dev_priv,
1131 enum plane plane, bool state)
1137 reg = DSPCNTR(plane);
1138 val = I915_READ(reg);
1139 cur_state = !!(val & DISPLAY_PLANE_ENABLE);
1140 WARN(cur_state != state,
1141 "plane %c assertion failure (expected %s, current %s)\n",
1142 plane_name(plane), state_string(state), state_string(cur_state));
1145 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1146 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1148 static void assert_planes_disabled(struct drm_i915_private *dev_priv,
1151 struct drm_device *dev = dev_priv->dev;
1156 /* Primary planes are fixed to pipes on gen4+ */
1157 if (INTEL_INFO(dev)->gen >= 4) {
1158 reg = DSPCNTR(pipe);
1159 val = I915_READ(reg);
1160 WARN((val & DISPLAY_PLANE_ENABLE),
1161 "plane %c assertion failure, should be disabled but not\n",
1166 /* Need to check both planes against the pipe */
1169 val = I915_READ(reg);
1170 cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >>
1171 DISPPLANE_SEL_PIPE_SHIFT;
1172 WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe,
1173 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1174 plane_name(i), pipe_name(pipe));
1178 static void assert_sprites_disabled(struct drm_i915_private *dev_priv,
1181 struct drm_device *dev = dev_priv->dev;
1185 if (IS_VALLEYVIEW(dev)) {
1186 for (i = 0; i < dev_priv->num_plane; i++) {
1187 reg = SPCNTR(pipe, i);
1188 val = I915_READ(reg);
1189 WARN((val & SP_ENABLE),
1190 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1191 sprite_name(pipe, i), pipe_name(pipe));
1193 } else if (INTEL_INFO(dev)->gen >= 7) {
1195 val = I915_READ(reg);
1196 WARN((val & SPRITE_ENABLE),
1197 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1198 plane_name(pipe), pipe_name(pipe));
1199 } else if (INTEL_INFO(dev)->gen >= 5) {
1200 reg = DVSCNTR(pipe);
1201 val = I915_READ(reg);
1202 WARN((val & DVS_ENABLE),
1203 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1204 plane_name(pipe), pipe_name(pipe));
1208 static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
1213 if (HAS_PCH_LPT(dev_priv->dev)) {
1214 DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n");
1218 val = I915_READ(PCH_DREF_CONTROL);
1219 enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK |
1220 DREF_SUPERSPREAD_SOURCE_MASK));
1221 WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n");
1224 static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1231 reg = PCH_TRANSCONF(pipe);
1232 val = I915_READ(reg);
1233 enabled = !!(val & TRANS_ENABLE);
1235 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1239 static bool dp_pipe_enabled(struct drm_i915_private *dev_priv,
1240 enum pipe pipe, u32 port_sel, u32 val)
1242 if ((val & DP_PORT_EN) == 0)
1245 if (HAS_PCH_CPT(dev_priv->dev)) {
1246 u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe);
1247 u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg);
1248 if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel)
1251 if ((val & DP_PIPE_MASK) != (pipe << 30))
1257 static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
1258 enum pipe pipe, u32 val)
1260 if ((val & SDVO_ENABLE) == 0)
1263 if (HAS_PCH_CPT(dev_priv->dev)) {
1264 if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe))
1267 if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe))
1273 static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
1274 enum pipe pipe, u32 val)
1276 if ((val & LVDS_PORT_EN) == 0)
1279 if (HAS_PCH_CPT(dev_priv->dev)) {
1280 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1283 if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
1289 static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
1290 enum pipe pipe, u32 val)
1292 if ((val & ADPA_DAC_ENABLE) == 0)
1294 if (HAS_PCH_CPT(dev_priv->dev)) {
1295 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1298 if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
1304 static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
1305 enum pipe pipe, int reg, u32 port_sel)
1307 u32 val = I915_READ(reg);
1308 WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val),
1309 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1310 reg, pipe_name(pipe));
1312 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0
1313 && (val & DP_PIPEB_SELECT),
1314 "IBX PCH dp port still using transcoder B\n");
1317 static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
1318 enum pipe pipe, int reg)
1320 u32 val = I915_READ(reg);
1321 WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
1322 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1323 reg, pipe_name(pipe));
1325 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0
1326 && (val & SDVO_PIPE_B_SELECT),
1327 "IBX PCH hdmi port still using transcoder B\n");
1330 static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
1336 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B);
1337 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
1338 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
1341 val = I915_READ(reg);
1342 WARN(adpa_pipe_enabled(dev_priv, pipe, val),
1343 "PCH VGA enabled on transcoder %c, should be disabled\n",
1347 val = I915_READ(reg);
1348 WARN(lvds_pipe_enabled(dev_priv, pipe, val),
1349 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1352 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB);
1353 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC);
1354 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID);
1357 static void intel_init_dpio(struct drm_device *dev)
1359 struct drm_i915_private *dev_priv = dev->dev_private;
1361 if (!IS_VALLEYVIEW(dev))
1364 DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO;
1366 * From VLV2A0_DP_eDP_DPIO_driver_vbios_notes_10.docx -
1367 * 6. De-assert cmn_reset/side_reset. Same as VLV X0.
1368 * a. GUnit 0x2110 bit[0] set to 1 (def 0)
1369 * b. The other bits such as sfr settings / modesel may all be set
1372 * This should only be done on init and resume from S3 with both
1373 * PLLs disabled, or we risk losing DPIO and PLL synchronization.
1375 I915_WRITE(DPIO_CTL, I915_READ(DPIO_CTL) | DPIO_CMNRST);
1378 static void vlv_enable_pll(struct intel_crtc *crtc)
1380 struct drm_device *dev = crtc->base.dev;
1381 struct drm_i915_private *dev_priv = dev->dev_private;
1382 int reg = DPLL(crtc->pipe);
1383 u32 dpll = crtc->config.dpll_hw_state.dpll;
1385 assert_pipe_disabled(dev_priv, crtc->pipe);
1387 /* No really, not for ILK+ */
1388 BUG_ON(!IS_VALLEYVIEW(dev_priv->dev));
1390 /* PLL is protected by panel, make sure we can write it */
1391 if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev))
1392 assert_panel_unlocked(dev_priv, crtc->pipe);
1394 I915_WRITE(reg, dpll);
1398 if (wait_for(((I915_READ(reg) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
1399 DRM_ERROR("DPLL %d failed to lock\n", crtc->pipe);
1401 I915_WRITE(DPLL_MD(crtc->pipe), crtc->config.dpll_hw_state.dpll_md);
1402 POSTING_READ(DPLL_MD(crtc->pipe));
1404 /* We do this three times for luck */
1405 I915_WRITE(reg, dpll);
1407 udelay(150); /* wait for warmup */
1408 I915_WRITE(reg, dpll);
1410 udelay(150); /* wait for warmup */
1411 I915_WRITE(reg, dpll);
1413 udelay(150); /* wait for warmup */
1416 static void i9xx_enable_pll(struct intel_crtc *crtc)
1418 struct drm_device *dev = crtc->base.dev;
1419 struct drm_i915_private *dev_priv = dev->dev_private;
1420 int reg = DPLL(crtc->pipe);
1421 u32 dpll = crtc->config.dpll_hw_state.dpll;
1423 assert_pipe_disabled(dev_priv, crtc->pipe);
1425 /* No really, not for ILK+ */
1426 BUG_ON(dev_priv->info->gen >= 5);
1428 /* PLL is protected by panel, make sure we can write it */
1429 if (IS_MOBILE(dev) && !IS_I830(dev))
1430 assert_panel_unlocked(dev_priv, crtc->pipe);
1432 I915_WRITE(reg, dpll);
1434 /* Wait for the clocks to stabilize. */
1438 if (INTEL_INFO(dev)->gen >= 4) {
1439 I915_WRITE(DPLL_MD(crtc->pipe),
1440 crtc->config.dpll_hw_state.dpll_md);
1442 /* The pixel multiplier can only be updated once the
1443 * DPLL is enabled and the clocks are stable.
1445 * So write it again.
1447 I915_WRITE(reg, dpll);
1450 /* We do this three times for luck */
1451 I915_WRITE(reg, dpll);
1453 udelay(150); /* wait for warmup */
1454 I915_WRITE(reg, dpll);
1456 udelay(150); /* wait for warmup */
1457 I915_WRITE(reg, dpll);
1459 udelay(150); /* wait for warmup */
1463 * i9xx_disable_pll - disable a PLL
1464 * @dev_priv: i915 private structure
1465 * @pipe: pipe PLL to disable
1467 * Disable the PLL for @pipe, making sure the pipe is off first.
1469 * Note! This is for pre-ILK only.
1471 static void i9xx_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1473 /* Don't disable pipe A or pipe A PLLs if needed */
1474 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1477 /* Make sure the pipe isn't still relying on us */
1478 assert_pipe_disabled(dev_priv, pipe);
1480 I915_WRITE(DPLL(pipe), 0);
1481 POSTING_READ(DPLL(pipe));
1484 static void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1488 /* Make sure the pipe isn't still relying on us */
1489 assert_pipe_disabled(dev_priv, pipe);
1491 /* Leave integrated clock source enabled */
1493 val = DPLL_INTEGRATED_CRI_CLK_VLV;
1494 I915_WRITE(DPLL(pipe), val);
1495 POSTING_READ(DPLL(pipe));
1498 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1499 struct intel_digital_port *dport)
1503 switch (dport->port) {
1505 port_mask = DPLL_PORTB_READY_MASK;
1508 port_mask = DPLL_PORTC_READY_MASK;
1514 if (wait_for((I915_READ(DPLL(0)) & port_mask) == 0, 1000))
1515 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1516 port_name(dport->port), I915_READ(DPLL(0)));
1520 * ironlake_enable_shared_dpll - enable PCH PLL
1521 * @dev_priv: i915 private structure
1522 * @pipe: pipe PLL to enable
1524 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1525 * drives the transcoder clock.
1527 static void ironlake_enable_shared_dpll(struct intel_crtc *crtc)
1529 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
1530 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
1532 /* PCH PLLs only available on ILK, SNB and IVB */
1533 BUG_ON(dev_priv->info->gen < 5);
1534 if (WARN_ON(pll == NULL))
1537 if (WARN_ON(pll->refcount == 0))
1540 DRM_DEBUG_KMS("enable %s (active %d, on? %d)for crtc %d\n",
1541 pll->name, pll->active, pll->on,
1542 crtc->base.base.id);
1544 if (pll->active++) {
1546 assert_shared_dpll_enabled(dev_priv, pll);
1551 DRM_DEBUG_KMS("enabling %s\n", pll->name);
1552 pll->enable(dev_priv, pll);
1556 static void intel_disable_shared_dpll(struct intel_crtc *crtc)
1558 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
1559 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
1561 /* PCH only available on ILK+ */
1562 BUG_ON(dev_priv->info->gen < 5);
1563 if (WARN_ON(pll == NULL))
1566 if (WARN_ON(pll->refcount == 0))
1569 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1570 pll->name, pll->active, pll->on,
1571 crtc->base.base.id);
1573 if (WARN_ON(pll->active == 0)) {
1574 assert_shared_dpll_disabled(dev_priv, pll);
1578 assert_shared_dpll_enabled(dev_priv, pll);
1583 DRM_DEBUG_KMS("disabling %s\n", pll->name);
1584 pll->disable(dev_priv, pll);
1588 static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1591 struct drm_device *dev = dev_priv->dev;
1592 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
1593 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1594 uint32_t reg, val, pipeconf_val;
1596 /* PCH only available on ILK+ */
1597 BUG_ON(dev_priv->info->gen < 5);
1599 /* Make sure PCH DPLL is enabled */
1600 assert_shared_dpll_enabled(dev_priv,
1601 intel_crtc_to_shared_dpll(intel_crtc));
1603 /* FDI must be feeding us bits for PCH ports */
1604 assert_fdi_tx_enabled(dev_priv, pipe);
1605 assert_fdi_rx_enabled(dev_priv, pipe);
1607 if (HAS_PCH_CPT(dev)) {
1608 /* Workaround: Set the timing override bit before enabling the
1609 * pch transcoder. */
1610 reg = TRANS_CHICKEN2(pipe);
1611 val = I915_READ(reg);
1612 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1613 I915_WRITE(reg, val);
1616 reg = PCH_TRANSCONF(pipe);
1617 val = I915_READ(reg);
1618 pipeconf_val = I915_READ(PIPECONF(pipe));
1620 if (HAS_PCH_IBX(dev_priv->dev)) {
1622 * make the BPC in transcoder be consistent with
1623 * that in pipeconf reg.
1625 val &= ~PIPECONF_BPC_MASK;
1626 val |= pipeconf_val & PIPECONF_BPC_MASK;
1629 val &= ~TRANS_INTERLACE_MASK;
1630 if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
1631 if (HAS_PCH_IBX(dev_priv->dev) &&
1632 intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO))
1633 val |= TRANS_LEGACY_INTERLACED_ILK;
1635 val |= TRANS_INTERLACED;
1637 val |= TRANS_PROGRESSIVE;
1639 I915_WRITE(reg, val | TRANS_ENABLE);
1640 if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
1641 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe));
1644 static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1645 enum transcoder cpu_transcoder)
1647 u32 val, pipeconf_val;
1649 /* PCH only available on ILK+ */
1650 BUG_ON(dev_priv->info->gen < 5);
1652 /* FDI must be feeding us bits for PCH ports */
1653 assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
1654 assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
1656 /* Workaround: set timing override bit. */
1657 val = I915_READ(_TRANSA_CHICKEN2);
1658 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1659 I915_WRITE(_TRANSA_CHICKEN2, val);
1662 pipeconf_val = I915_READ(PIPECONF(cpu_transcoder));
1664 if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) ==
1665 PIPECONF_INTERLACED_ILK)
1666 val |= TRANS_INTERLACED;
1668 val |= TRANS_PROGRESSIVE;
1670 I915_WRITE(LPT_TRANSCONF, val);
1671 if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100))
1672 DRM_ERROR("Failed to enable PCH transcoder\n");
1675 static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
1678 struct drm_device *dev = dev_priv->dev;
1681 /* FDI relies on the transcoder */
1682 assert_fdi_tx_disabled(dev_priv, pipe);
1683 assert_fdi_rx_disabled(dev_priv, pipe);
1685 /* Ports must be off as well */
1686 assert_pch_ports_disabled(dev_priv, pipe);
1688 reg = PCH_TRANSCONF(pipe);
1689 val = I915_READ(reg);
1690 val &= ~TRANS_ENABLE;
1691 I915_WRITE(reg, val);
1692 /* wait for PCH transcoder off, transcoder state */
1693 if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
1694 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe));
1696 if (!HAS_PCH_IBX(dev)) {
1697 /* Workaround: Clear the timing override chicken bit again. */
1698 reg = TRANS_CHICKEN2(pipe);
1699 val = I915_READ(reg);
1700 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1701 I915_WRITE(reg, val);
1705 static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
1709 val = I915_READ(LPT_TRANSCONF);
1710 val &= ~TRANS_ENABLE;
1711 I915_WRITE(LPT_TRANSCONF, val);
1712 /* wait for PCH transcoder off, transcoder state */
1713 if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50))
1714 DRM_ERROR("Failed to disable PCH transcoder\n");
1716 /* Workaround: clear timing override bit. */
1717 val = I915_READ(_TRANSA_CHICKEN2);
1718 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1719 I915_WRITE(_TRANSA_CHICKEN2, val);
1723 * intel_enable_pipe - enable a pipe, asserting requirements
1724 * @dev_priv: i915 private structure
1725 * @pipe: pipe to enable
1726 * @pch_port: on ILK+, is this pipe driving a PCH port or not
1728 * Enable @pipe, making sure that various hardware specific requirements
1729 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1731 * @pipe should be %PIPE_A or %PIPE_B.
1733 * Will wait until the pipe is actually running (i.e. first vblank) before
1736 static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
1737 bool pch_port, bool dsi)
1739 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1741 enum pipe pch_transcoder;
1745 assert_planes_disabled(dev_priv, pipe);
1746 assert_cursor_disabled(dev_priv, pipe);
1747 assert_sprites_disabled(dev_priv, pipe);
1749 if (HAS_PCH_LPT(dev_priv->dev))
1750 pch_transcoder = TRANSCODER_A;
1752 pch_transcoder = pipe;
1755 * A pipe without a PLL won't actually be able to drive bits from
1756 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1759 if (!HAS_PCH_SPLIT(dev_priv->dev))
1761 assert_dsi_pll_enabled(dev_priv);
1763 assert_pll_enabled(dev_priv, pipe);
1766 /* if driving the PCH, we need FDI enabled */
1767 assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
1768 assert_fdi_tx_pll_enabled(dev_priv,
1769 (enum pipe) cpu_transcoder);
1771 /* FIXME: assert CPU port conditions for SNB+ */
1774 reg = PIPECONF(cpu_transcoder);
1775 val = I915_READ(reg);
1776 if (val & PIPECONF_ENABLE)
1779 I915_WRITE(reg, val | PIPECONF_ENABLE);
1780 intel_wait_for_vblank(dev_priv->dev, pipe);
1784 * intel_disable_pipe - disable a pipe, asserting requirements
1785 * @dev_priv: i915 private structure
1786 * @pipe: pipe to disable
1788 * Disable @pipe, making sure that various hardware specific requirements
1789 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1791 * @pipe should be %PIPE_A or %PIPE_B.
1793 * Will wait until the pipe has shut down before returning.
1795 static void intel_disable_pipe(struct drm_i915_private *dev_priv,
1798 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1804 * Make sure planes won't keep trying to pump pixels to us,
1805 * or we might hang the display.
1807 assert_planes_disabled(dev_priv, pipe);
1808 assert_cursor_disabled(dev_priv, pipe);
1809 assert_sprites_disabled(dev_priv, pipe);
1811 /* Don't disable pipe A or pipe A PLLs if needed */
1812 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1815 reg = PIPECONF(cpu_transcoder);
1816 val = I915_READ(reg);
1817 if ((val & PIPECONF_ENABLE) == 0)
1820 I915_WRITE(reg, val & ~PIPECONF_ENABLE);
1821 intel_wait_for_pipe_off(dev_priv->dev, pipe);
1825 * Plane regs are double buffered, going from enabled->disabled needs a
1826 * trigger in order to latch. The display address reg provides this.
1828 void intel_flush_primary_plane(struct drm_i915_private *dev_priv,
1831 u32 reg = dev_priv->info->gen >= 4 ? DSPSURF(plane) : DSPADDR(plane);
1833 I915_WRITE(reg, I915_READ(reg));
1838 * intel_enable_primary_plane - enable the primary plane on a given pipe
1839 * @dev_priv: i915 private structure
1840 * @plane: plane to enable
1841 * @pipe: pipe being fed
1843 * Enable @plane on @pipe, making sure that @pipe is running first.
1845 static void intel_enable_primary_plane(struct drm_i915_private *dev_priv,
1846 enum plane plane, enum pipe pipe)
1848 struct intel_crtc *intel_crtc =
1849 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
1853 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1854 assert_pipe_enabled(dev_priv, pipe);
1856 WARN(intel_crtc->primary_enabled, "Primary plane already enabled\n");
1858 intel_crtc->primary_enabled = true;
1860 reg = DSPCNTR(plane);
1861 val = I915_READ(reg);
1862 if (val & DISPLAY_PLANE_ENABLE)
1865 I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
1866 intel_flush_primary_plane(dev_priv, plane);
1867 intel_wait_for_vblank(dev_priv->dev, pipe);
1871 * intel_disable_primary_plane - disable the primary plane
1872 * @dev_priv: i915 private structure
1873 * @plane: plane to disable
1874 * @pipe: pipe consuming the data
1876 * Disable @plane; should be an independent operation.
1878 static void intel_disable_primary_plane(struct drm_i915_private *dev_priv,
1879 enum plane plane, enum pipe pipe)
1881 struct intel_crtc *intel_crtc =
1882 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
1886 WARN(!intel_crtc->primary_enabled, "Primary plane already disabled\n");
1888 intel_crtc->primary_enabled = false;
1890 reg = DSPCNTR(plane);
1891 val = I915_READ(reg);
1892 if ((val & DISPLAY_PLANE_ENABLE) == 0)
1895 I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
1896 intel_flush_primary_plane(dev_priv, plane);
1897 intel_wait_for_vblank(dev_priv->dev, pipe);
1900 static bool need_vtd_wa(struct drm_device *dev)
1902 #ifdef CONFIG_INTEL_IOMMU
1903 if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped)
1910 intel_pin_and_fence_fb_obj(struct drm_device *dev,
1911 struct drm_i915_gem_object *obj,
1912 struct intel_ring_buffer *pipelined)
1914 struct drm_i915_private *dev_priv = dev->dev_private;
1918 switch (obj->tiling_mode) {
1919 case I915_TILING_NONE:
1920 if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
1921 alignment = 128 * 1024;
1922 else if (INTEL_INFO(dev)->gen >= 4)
1923 alignment = 4 * 1024;
1925 alignment = 64 * 1024;
1928 /* pin() will align the object as required by fence */
1932 WARN(1, "Y tiled bo slipped through, driver bug!\n");
1938 /* Note that the w/a also requires 64 PTE of padding following the
1939 * bo. We currently fill all unused PTE with the shadow page and so
1940 * we should always have valid PTE following the scanout preventing
1943 if (need_vtd_wa(dev) && alignment < 256 * 1024)
1944 alignment = 256 * 1024;
1946 dev_priv->mm.interruptible = false;
1947 ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
1949 goto err_interruptible;
1951 /* Install a fence for tiled scan-out. Pre-i965 always needs a
1952 * fence, whereas 965+ only requires a fence if using
1953 * framebuffer compression. For simplicity, we always install
1954 * a fence as the cost is not that onerous.
1956 ret = i915_gem_object_get_fence(obj);
1960 i915_gem_object_pin_fence(obj);
1962 dev_priv->mm.interruptible = true;
1966 i915_gem_object_unpin_from_display_plane(obj);
1968 dev_priv->mm.interruptible = true;
1972 void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
1974 i915_gem_object_unpin_fence(obj);
1975 i915_gem_object_unpin_from_display_plane(obj);
1978 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
1979 * is assumed to be a power-of-two. */
1980 unsigned long intel_gen4_compute_page_offset(int *x, int *y,
1981 unsigned int tiling_mode,
1985 if (tiling_mode != I915_TILING_NONE) {
1986 unsigned int tile_rows, tiles;
1991 tiles = *x / (512/cpp);
1994 return tile_rows * pitch * 8 + tiles * 4096;
1996 unsigned int offset;
1998 offset = *y * pitch + *x * cpp;
2000 *x = (offset & 4095) / cpp;
2001 return offset & -4096;
2005 static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2008 struct drm_device *dev = crtc->dev;
2009 struct drm_i915_private *dev_priv = dev->dev_private;
2010 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2011 struct intel_framebuffer *intel_fb;
2012 struct drm_i915_gem_object *obj;
2013 int plane = intel_crtc->plane;
2014 unsigned long linear_offset;
2023 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
2027 intel_fb = to_intel_framebuffer(fb);
2028 obj = intel_fb->obj;
2030 reg = DSPCNTR(plane);
2031 dspcntr = I915_READ(reg);
2032 /* Mask out pixel format bits in case we change it */
2033 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2034 switch (fb->pixel_format) {
2036 dspcntr |= DISPPLANE_8BPP;
2038 case DRM_FORMAT_XRGB1555:
2039 case DRM_FORMAT_ARGB1555:
2040 dspcntr |= DISPPLANE_BGRX555;
2042 case DRM_FORMAT_RGB565:
2043 dspcntr |= DISPPLANE_BGRX565;
2045 case DRM_FORMAT_XRGB8888:
2046 case DRM_FORMAT_ARGB8888:
2047 dspcntr |= DISPPLANE_BGRX888;
2049 case DRM_FORMAT_XBGR8888:
2050 case DRM_FORMAT_ABGR8888:
2051 dspcntr |= DISPPLANE_RGBX888;
2053 case DRM_FORMAT_XRGB2101010:
2054 case DRM_FORMAT_ARGB2101010:
2055 dspcntr |= DISPPLANE_BGRX101010;
2057 case DRM_FORMAT_XBGR2101010:
2058 case DRM_FORMAT_ABGR2101010:
2059 dspcntr |= DISPPLANE_RGBX101010;
2065 if (INTEL_INFO(dev)->gen >= 4) {
2066 if (obj->tiling_mode != I915_TILING_NONE)
2067 dspcntr |= DISPPLANE_TILED;
2069 dspcntr &= ~DISPPLANE_TILED;
2073 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2075 I915_WRITE(reg, dspcntr);
2077 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2079 if (INTEL_INFO(dev)->gen >= 4) {
2080 intel_crtc->dspaddr_offset =
2081 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2082 fb->bits_per_pixel / 8,
2084 linear_offset -= intel_crtc->dspaddr_offset;
2086 intel_crtc->dspaddr_offset = linear_offset;
2089 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2090 i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
2092 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2093 if (INTEL_INFO(dev)->gen >= 4) {
2094 I915_MODIFY_DISPBASE(DSPSURF(plane),
2095 i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
2096 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2097 I915_WRITE(DSPLINOFF(plane), linear_offset);
2099 I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset);
2105 static int ironlake_update_plane(struct drm_crtc *crtc,
2106 struct drm_framebuffer *fb, int x, int y)
2108 struct drm_device *dev = crtc->dev;
2109 struct drm_i915_private *dev_priv = dev->dev_private;
2110 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2111 struct intel_framebuffer *intel_fb;
2112 struct drm_i915_gem_object *obj;
2113 int plane = intel_crtc->plane;
2114 unsigned long linear_offset;
2124 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
2128 intel_fb = to_intel_framebuffer(fb);
2129 obj = intel_fb->obj;
2131 reg = DSPCNTR(plane);
2132 dspcntr = I915_READ(reg);
2133 /* Mask out pixel format bits in case we change it */
2134 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2135 switch (fb->pixel_format) {
2137 dspcntr |= DISPPLANE_8BPP;
2139 case DRM_FORMAT_RGB565:
2140 dspcntr |= DISPPLANE_BGRX565;
2142 case DRM_FORMAT_XRGB8888:
2143 case DRM_FORMAT_ARGB8888:
2144 dspcntr |= DISPPLANE_BGRX888;
2146 case DRM_FORMAT_XBGR8888:
2147 case DRM_FORMAT_ABGR8888:
2148 dspcntr |= DISPPLANE_RGBX888;
2150 case DRM_FORMAT_XRGB2101010:
2151 case DRM_FORMAT_ARGB2101010:
2152 dspcntr |= DISPPLANE_BGRX101010;
2154 case DRM_FORMAT_XBGR2101010:
2155 case DRM_FORMAT_ABGR2101010:
2156 dspcntr |= DISPPLANE_RGBX101010;
2162 if (obj->tiling_mode != I915_TILING_NONE)
2163 dspcntr |= DISPPLANE_TILED;
2165 dspcntr &= ~DISPPLANE_TILED;
2167 if (IS_HASWELL(dev) || IS_BROADWELL(dev))
2168 dspcntr &= ~DISPPLANE_TRICKLE_FEED_DISABLE;
2170 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2172 I915_WRITE(reg, dspcntr);
2174 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2175 intel_crtc->dspaddr_offset =
2176 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2177 fb->bits_per_pixel / 8,
2179 linear_offset -= intel_crtc->dspaddr_offset;
2181 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2182 i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
2184 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2185 I915_MODIFY_DISPBASE(DSPSURF(plane),
2186 i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
2187 if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
2188 I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
2190 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2191 I915_WRITE(DSPLINOFF(plane), linear_offset);
2198 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2200 intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2201 int x, int y, enum mode_set_atomic state)
2203 struct drm_device *dev = crtc->dev;
2204 struct drm_i915_private *dev_priv = dev->dev_private;
2206 if (dev_priv->display.disable_fbc)
2207 dev_priv->display.disable_fbc(dev);
2208 intel_increase_pllclock(crtc);
2210 return dev_priv->display.update_plane(crtc, fb, x, y);
2213 void intel_display_handle_reset(struct drm_device *dev)
2215 struct drm_i915_private *dev_priv = dev->dev_private;
2216 struct drm_crtc *crtc;
2219 * Flips in the rings have been nuked by the reset,
2220 * so complete all pending flips so that user space
2221 * will get its events and not get stuck.
2223 * Also update the base address of all primary
2224 * planes to the the last fb to make sure we're
2225 * showing the correct fb after a reset.
2227 * Need to make two loops over the crtcs so that we
2228 * don't try to grab a crtc mutex before the
2229 * pending_flip_queue really got woken up.
2232 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2233 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2234 enum plane plane = intel_crtc->plane;
2236 intel_prepare_page_flip(dev, plane);
2237 intel_finish_page_flip_plane(dev, plane);
2240 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2241 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2243 mutex_lock(&crtc->mutex);
2245 * FIXME: Once we have proper support for primary planes (and
2246 * disabling them without disabling the entire crtc) allow again
2249 if (intel_crtc->active && crtc->fb)
2250 dev_priv->display.update_plane(crtc, crtc->fb,
2252 mutex_unlock(&crtc->mutex);
2257 intel_finish_fb(struct drm_framebuffer *old_fb)
2259 struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
2260 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2261 bool was_interruptible = dev_priv->mm.interruptible;
2264 /* Big Hammer, we also need to ensure that any pending
2265 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2266 * current scanout is retired before unpinning the old
2269 * This should only fail upon a hung GPU, in which case we
2270 * can safely continue.
2272 dev_priv->mm.interruptible = false;
2273 ret = i915_gem_object_finish_gpu(obj);
2274 dev_priv->mm.interruptible = was_interruptible;
2279 static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y)
2281 struct drm_device *dev = crtc->dev;
2282 struct drm_i915_master_private *master_priv;
2283 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2285 if (!dev->primary->master)
2288 master_priv = dev->primary->master->driver_priv;
2289 if (!master_priv->sarea_priv)
2292 switch (intel_crtc->pipe) {
2294 master_priv->sarea_priv->pipeA_x = x;
2295 master_priv->sarea_priv->pipeA_y = y;
2298 master_priv->sarea_priv->pipeB_x = x;
2299 master_priv->sarea_priv->pipeB_y = y;
2307 intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
2308 struct drm_framebuffer *fb)
2310 struct drm_device *dev = crtc->dev;
2311 struct drm_i915_private *dev_priv = dev->dev_private;
2312 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2313 struct drm_framebuffer *old_fb;
2318 DRM_ERROR("No FB bound\n");
2322 if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
2323 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2324 plane_name(intel_crtc->plane),
2325 INTEL_INFO(dev)->num_pipes);
2329 mutex_lock(&dev->struct_mutex);
2330 ret = intel_pin_and_fence_fb_obj(dev,
2331 to_intel_framebuffer(fb)->obj,
2334 mutex_unlock(&dev->struct_mutex);
2335 DRM_ERROR("pin & fence failed\n");
2340 * Update pipe size and adjust fitter if needed: the reason for this is
2341 * that in compute_mode_changes we check the native mode (not the pfit
2342 * mode) to see if we can flip rather than do a full mode set. In the
2343 * fastboot case, we'll flip, but if we don't update the pipesrc and
2344 * pfit state, we'll end up with a big fb scanned out into the wrong
2347 * To fix this properly, we need to hoist the checks up into
2348 * compute_mode_changes (or above), check the actual pfit state and
2349 * whether the platform allows pfit disable with pipe active, and only
2350 * then update the pipesrc and pfit state, even on the flip path.
2352 if (i915_fastboot) {
2353 const struct drm_display_mode *adjusted_mode =
2354 &intel_crtc->config.adjusted_mode;
2356 I915_WRITE(PIPESRC(intel_crtc->pipe),
2357 ((adjusted_mode->crtc_hdisplay - 1) << 16) |
2358 (adjusted_mode->crtc_vdisplay - 1));
2359 if (!intel_crtc->config.pch_pfit.enabled &&
2360 (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) ||
2361 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
2362 I915_WRITE(PF_CTL(intel_crtc->pipe), 0);
2363 I915_WRITE(PF_WIN_POS(intel_crtc->pipe), 0);
2364 I915_WRITE(PF_WIN_SZ(intel_crtc->pipe), 0);
2368 ret = dev_priv->display.update_plane(crtc, fb, x, y);
2370 intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);
2371 mutex_unlock(&dev->struct_mutex);
2372 DRM_ERROR("failed to update base address\n");
2382 if (intel_crtc->active && old_fb != fb)
2383 intel_wait_for_vblank(dev, intel_crtc->pipe);
2384 intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
2387 intel_update_fbc(dev);
2388 intel_edp_psr_update(dev);
2389 mutex_unlock(&dev->struct_mutex);
2391 intel_crtc_update_sarea_pos(crtc, x, y);
2396 static void intel_fdi_normal_train(struct drm_crtc *crtc)
2398 struct drm_device *dev = crtc->dev;
2399 struct drm_i915_private *dev_priv = dev->dev_private;
2400 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2401 int pipe = intel_crtc->pipe;
2404 /* enable normal train */
2405 reg = FDI_TX_CTL(pipe);
2406 temp = I915_READ(reg);
2407 if (IS_IVYBRIDGE(dev)) {
2408 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2409 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
2411 temp &= ~FDI_LINK_TRAIN_NONE;
2412 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
2414 I915_WRITE(reg, temp);
2416 reg = FDI_RX_CTL(pipe);
2417 temp = I915_READ(reg);
2418 if (HAS_PCH_CPT(dev)) {
2419 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2420 temp |= FDI_LINK_TRAIN_NORMAL_CPT;
2422 temp &= ~FDI_LINK_TRAIN_NONE;
2423 temp |= FDI_LINK_TRAIN_NONE;
2425 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
2427 /* wait one idle pattern time */
2431 /* IVB wants error correction enabled */
2432 if (IS_IVYBRIDGE(dev))
2433 I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
2434 FDI_FE_ERRC_ENABLE);
2437 static bool pipe_has_enabled_pch(struct intel_crtc *crtc)
2439 return crtc->base.enabled && crtc->active &&
2440 crtc->config.has_pch_encoder;
2443 static void ivb_modeset_global_resources(struct drm_device *dev)
2445 struct drm_i915_private *dev_priv = dev->dev_private;
2446 struct intel_crtc *pipe_B_crtc =
2447 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
2448 struct intel_crtc *pipe_C_crtc =
2449 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]);
2453 * When everything is off disable fdi C so that we could enable fdi B
2454 * with all lanes. Note that we don't care about enabled pipes without
2455 * an enabled pch encoder.
2457 if (!pipe_has_enabled_pch(pipe_B_crtc) &&
2458 !pipe_has_enabled_pch(pipe_C_crtc)) {
2459 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
2460 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
2462 temp = I915_READ(SOUTH_CHICKEN1);
2463 temp &= ~FDI_BC_BIFURCATION_SELECT;
2464 DRM_DEBUG_KMS("disabling fdi C rx\n");
2465 I915_WRITE(SOUTH_CHICKEN1, temp);
2469 /* The FDI link training functions for ILK/Ibexpeak. */
2470 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
2472 struct drm_device *dev = crtc->dev;
2473 struct drm_i915_private *dev_priv = dev->dev_private;
2474 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2475 int pipe = intel_crtc->pipe;
2476 int plane = intel_crtc->plane;
2477 u32 reg, temp, tries;
2479 /* FDI needs bits from pipe & plane first */
2480 assert_pipe_enabled(dev_priv, pipe);
2481 assert_plane_enabled(dev_priv, plane);
2483 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2485 reg = FDI_RX_IMR(pipe);
2486 temp = I915_READ(reg);
2487 temp &= ~FDI_RX_SYMBOL_LOCK;
2488 temp &= ~FDI_RX_BIT_LOCK;
2489 I915_WRITE(reg, temp);
2493 /* enable CPU FDI TX and PCH FDI RX */
2494 reg = FDI_TX_CTL(pipe);
2495 temp = I915_READ(reg);
2496 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2497 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2498 temp &= ~FDI_LINK_TRAIN_NONE;
2499 temp |= FDI_LINK_TRAIN_PATTERN_1;
2500 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2502 reg = FDI_RX_CTL(pipe);
2503 temp = I915_READ(reg);
2504 temp &= ~FDI_LINK_TRAIN_NONE;
2505 temp |= FDI_LINK_TRAIN_PATTERN_1;
2506 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2511 /* Ironlake workaround, enable clock pointer after FDI enable*/
2512 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2513 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
2514 FDI_RX_PHASE_SYNC_POINTER_EN);
2516 reg = FDI_RX_IIR(pipe);
2517 for (tries = 0; tries < 5; tries++) {
2518 temp = I915_READ(reg);
2519 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2521 if ((temp & FDI_RX_BIT_LOCK)) {
2522 DRM_DEBUG_KMS("FDI train 1 done.\n");
2523 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2528 DRM_ERROR("FDI train 1 fail!\n");
2531 reg = FDI_TX_CTL(pipe);
2532 temp = I915_READ(reg);
2533 temp &= ~FDI_LINK_TRAIN_NONE;
2534 temp |= FDI_LINK_TRAIN_PATTERN_2;
2535 I915_WRITE(reg, temp);
2537 reg = FDI_RX_CTL(pipe);
2538 temp = I915_READ(reg);
2539 temp &= ~FDI_LINK_TRAIN_NONE;
2540 temp |= FDI_LINK_TRAIN_PATTERN_2;
2541 I915_WRITE(reg, temp);
2546 reg = FDI_RX_IIR(pipe);
2547 for (tries = 0; tries < 5; tries++) {
2548 temp = I915_READ(reg);
2549 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2551 if (temp & FDI_RX_SYMBOL_LOCK) {
2552 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2553 DRM_DEBUG_KMS("FDI train 2 done.\n");
2558 DRM_ERROR("FDI train 2 fail!\n");
2560 DRM_DEBUG_KMS("FDI train done\n");
2564 static const int snb_b_fdi_train_param[] = {
2565 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
2566 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
2567 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
2568 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
2571 /* The FDI link training functions for SNB/Cougarpoint. */
2572 static void gen6_fdi_link_train(struct drm_crtc *crtc)
2574 struct drm_device *dev = crtc->dev;
2575 struct drm_i915_private *dev_priv = dev->dev_private;
2576 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2577 int pipe = intel_crtc->pipe;
2578 u32 reg, temp, i, retry;
2580 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2582 reg = FDI_RX_IMR(pipe);
2583 temp = I915_READ(reg);
2584 temp &= ~FDI_RX_SYMBOL_LOCK;
2585 temp &= ~FDI_RX_BIT_LOCK;
2586 I915_WRITE(reg, temp);
2591 /* enable CPU FDI TX and PCH FDI RX */
2592 reg = FDI_TX_CTL(pipe);
2593 temp = I915_READ(reg);
2594 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2595 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2596 temp &= ~FDI_LINK_TRAIN_NONE;
2597 temp |= FDI_LINK_TRAIN_PATTERN_1;
2598 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2600 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2601 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2603 I915_WRITE(FDI_RX_MISC(pipe),
2604 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2606 reg = FDI_RX_CTL(pipe);
2607 temp = I915_READ(reg);
2608 if (HAS_PCH_CPT(dev)) {
2609 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2610 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2612 temp &= ~FDI_LINK_TRAIN_NONE;
2613 temp |= FDI_LINK_TRAIN_PATTERN_1;
2615 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2620 for (i = 0; i < 4; i++) {
2621 reg = FDI_TX_CTL(pipe);
2622 temp = I915_READ(reg);
2623 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2624 temp |= snb_b_fdi_train_param[i];
2625 I915_WRITE(reg, temp);
2630 for (retry = 0; retry < 5; retry++) {
2631 reg = FDI_RX_IIR(pipe);
2632 temp = I915_READ(reg);
2633 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2634 if (temp & FDI_RX_BIT_LOCK) {
2635 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2636 DRM_DEBUG_KMS("FDI train 1 done.\n");
2645 DRM_ERROR("FDI train 1 fail!\n");
2648 reg = FDI_TX_CTL(pipe);
2649 temp = I915_READ(reg);
2650 temp &= ~FDI_LINK_TRAIN_NONE;
2651 temp |= FDI_LINK_TRAIN_PATTERN_2;
2653 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2655 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2657 I915_WRITE(reg, temp);
2659 reg = FDI_RX_CTL(pipe);
2660 temp = I915_READ(reg);
2661 if (HAS_PCH_CPT(dev)) {
2662 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2663 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2665 temp &= ~FDI_LINK_TRAIN_NONE;
2666 temp |= FDI_LINK_TRAIN_PATTERN_2;
2668 I915_WRITE(reg, temp);
2673 for (i = 0; i < 4; i++) {
2674 reg = FDI_TX_CTL(pipe);
2675 temp = I915_READ(reg);
2676 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2677 temp |= snb_b_fdi_train_param[i];
2678 I915_WRITE(reg, temp);
2683 for (retry = 0; retry < 5; retry++) {
2684 reg = FDI_RX_IIR(pipe);
2685 temp = I915_READ(reg);
2686 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2687 if (temp & FDI_RX_SYMBOL_LOCK) {
2688 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2689 DRM_DEBUG_KMS("FDI train 2 done.\n");
2698 DRM_ERROR("FDI train 2 fail!\n");
2700 DRM_DEBUG_KMS("FDI train done.\n");
2703 /* Manual link training for Ivy Bridge A0 parts */
2704 static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
2706 struct drm_device *dev = crtc->dev;
2707 struct drm_i915_private *dev_priv = dev->dev_private;
2708 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2709 int pipe = intel_crtc->pipe;
2710 u32 reg, temp, i, j;
2712 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2714 reg = FDI_RX_IMR(pipe);
2715 temp = I915_READ(reg);
2716 temp &= ~FDI_RX_SYMBOL_LOCK;
2717 temp &= ~FDI_RX_BIT_LOCK;
2718 I915_WRITE(reg, temp);
2723 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2724 I915_READ(FDI_RX_IIR(pipe)));
2726 /* Try each vswing and preemphasis setting twice before moving on */
2727 for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) {
2728 /* disable first in case we need to retry */
2729 reg = FDI_TX_CTL(pipe);
2730 temp = I915_READ(reg);
2731 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
2732 temp &= ~FDI_TX_ENABLE;
2733 I915_WRITE(reg, temp);
2735 reg = FDI_RX_CTL(pipe);
2736 temp = I915_READ(reg);
2737 temp &= ~FDI_LINK_TRAIN_AUTO;
2738 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2739 temp &= ~FDI_RX_ENABLE;
2740 I915_WRITE(reg, temp);
2742 /* enable CPU FDI TX and PCH FDI RX */
2743 reg = FDI_TX_CTL(pipe);
2744 temp = I915_READ(reg);
2745 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2746 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2747 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
2748 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2749 temp |= snb_b_fdi_train_param[j/2];
2750 temp |= FDI_COMPOSITE_SYNC;
2751 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2753 I915_WRITE(FDI_RX_MISC(pipe),
2754 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2756 reg = FDI_RX_CTL(pipe);
2757 temp = I915_READ(reg);
2758 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2759 temp |= FDI_COMPOSITE_SYNC;
2760 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2763 udelay(1); /* should be 0.5us */
2765 for (i = 0; i < 4; i++) {
2766 reg = FDI_RX_IIR(pipe);
2767 temp = I915_READ(reg);
2768 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2770 if (temp & FDI_RX_BIT_LOCK ||
2771 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
2772 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2773 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
2777 udelay(1); /* should be 0.5us */
2780 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2);
2785 reg = FDI_TX_CTL(pipe);
2786 temp = I915_READ(reg);
2787 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2788 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
2789 I915_WRITE(reg, temp);
2791 reg = FDI_RX_CTL(pipe);
2792 temp = I915_READ(reg);
2793 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2794 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2795 I915_WRITE(reg, temp);
2798 udelay(2); /* should be 1.5us */
2800 for (i = 0; i < 4; i++) {
2801 reg = FDI_RX_IIR(pipe);
2802 temp = I915_READ(reg);
2803 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2805 if (temp & FDI_RX_SYMBOL_LOCK ||
2806 (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) {
2807 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2808 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
2812 udelay(2); /* should be 1.5us */
2815 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2);
2819 DRM_DEBUG_KMS("FDI train done.\n");
2822 static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
2824 struct drm_device *dev = intel_crtc->base.dev;
2825 struct drm_i915_private *dev_priv = dev->dev_private;
2826 int pipe = intel_crtc->pipe;
2830 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2831 reg = FDI_RX_CTL(pipe);
2832 temp = I915_READ(reg);
2833 temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
2834 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2835 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2836 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
2841 /* Switch from Rawclk to PCDclk */
2842 temp = I915_READ(reg);
2843 I915_WRITE(reg, temp | FDI_PCDCLK);
2848 /* Enable CPU FDI TX PLL, always on for Ironlake */
2849 reg = FDI_TX_CTL(pipe);
2850 temp = I915_READ(reg);
2851 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
2852 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
2859 static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
2861 struct drm_device *dev = intel_crtc->base.dev;
2862 struct drm_i915_private *dev_priv = dev->dev_private;
2863 int pipe = intel_crtc->pipe;
2866 /* Switch from PCDclk to Rawclk */
2867 reg = FDI_RX_CTL(pipe);
2868 temp = I915_READ(reg);
2869 I915_WRITE(reg, temp & ~FDI_PCDCLK);
2871 /* Disable CPU FDI TX PLL */
2872 reg = FDI_TX_CTL(pipe);
2873 temp = I915_READ(reg);
2874 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
2879 reg = FDI_RX_CTL(pipe);
2880 temp = I915_READ(reg);
2881 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
2883 /* Wait for the clocks to turn off. */
2888 static void ironlake_fdi_disable(struct drm_crtc *crtc)
2890 struct drm_device *dev = crtc->dev;
2891 struct drm_i915_private *dev_priv = dev->dev_private;
2892 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2893 int pipe = intel_crtc->pipe;
2896 /* disable CPU FDI tx and PCH FDI rx */
2897 reg = FDI_TX_CTL(pipe);
2898 temp = I915_READ(reg);
2899 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
2902 reg = FDI_RX_CTL(pipe);
2903 temp = I915_READ(reg);
2904 temp &= ~(0x7 << 16);
2905 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2906 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
2911 /* Ironlake workaround, disable clock pointer after downing FDI */
2912 if (HAS_PCH_IBX(dev)) {
2913 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2916 /* still set train pattern 1 */
2917 reg = FDI_TX_CTL(pipe);
2918 temp = I915_READ(reg);
2919 temp &= ~FDI_LINK_TRAIN_NONE;
2920 temp |= FDI_LINK_TRAIN_PATTERN_1;
2921 I915_WRITE(reg, temp);
2923 reg = FDI_RX_CTL(pipe);
2924 temp = I915_READ(reg);
2925 if (HAS_PCH_CPT(dev)) {
2926 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2927 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2929 temp &= ~FDI_LINK_TRAIN_NONE;
2930 temp |= FDI_LINK_TRAIN_PATTERN_1;
2932 /* BPC in FDI rx is consistent with that in PIPECONF */
2933 temp &= ~(0x07 << 16);
2934 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2935 I915_WRITE(reg, temp);
2941 static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
2943 struct drm_device *dev = crtc->dev;
2944 struct drm_i915_private *dev_priv = dev->dev_private;
2945 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2946 unsigned long flags;
2949 if (i915_reset_in_progress(&dev_priv->gpu_error) ||
2950 intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
2953 spin_lock_irqsave(&dev->event_lock, flags);
2954 pending = to_intel_crtc(crtc)->unpin_work != NULL;
2955 spin_unlock_irqrestore(&dev->event_lock, flags);
2960 static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
2962 struct drm_device *dev = crtc->dev;
2963 struct drm_i915_private *dev_priv = dev->dev_private;
2965 if (crtc->fb == NULL)
2968 WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
2970 wait_event(dev_priv->pending_flip_queue,
2971 !intel_crtc_has_pending_flip(crtc));
2973 mutex_lock(&dev->struct_mutex);
2974 intel_finish_fb(crtc->fb);
2975 mutex_unlock(&dev->struct_mutex);
2978 /* Program iCLKIP clock to the desired frequency */
2979 static void lpt_program_iclkip(struct drm_crtc *crtc)
2981 struct drm_device *dev = crtc->dev;
2982 struct drm_i915_private *dev_priv = dev->dev_private;
2983 int clock = to_intel_crtc(crtc)->config.adjusted_mode.crtc_clock;
2984 u32 divsel, phaseinc, auxdiv, phasedir = 0;
2987 mutex_lock(&dev_priv->dpio_lock);
2989 /* It is necessary to ungate the pixclk gate prior to programming
2990 * the divisors, and gate it back when it is done.
2992 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
2994 /* Disable SSCCTL */
2995 intel_sbi_write(dev_priv, SBI_SSCCTL6,
2996 intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) |
3000 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
3001 if (clock == 20000) {
3006 /* The iCLK virtual clock root frequency is in MHz,
3007 * but the adjusted_mode->crtc_clock in in KHz. To get the
3008 * divisors, it is necessary to divide one by another, so we
3009 * convert the virtual clock precision to KHz here for higher
3012 u32 iclk_virtual_root_freq = 172800 * 1000;
3013 u32 iclk_pi_range = 64;
3014 u32 desired_divisor, msb_divisor_value, pi_value;
3016 desired_divisor = (iclk_virtual_root_freq / clock);
3017 msb_divisor_value = desired_divisor / iclk_pi_range;
3018 pi_value = desired_divisor % iclk_pi_range;
3021 divsel = msb_divisor_value - 2;
3022 phaseinc = pi_value;
3025 /* This should not happen with any sane values */
3026 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
3027 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
3028 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
3029 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
3031 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3038 /* Program SSCDIVINTPHASE6 */
3039 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
3040 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
3041 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
3042 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
3043 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
3044 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
3045 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
3046 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
3048 /* Program SSCAUXDIV */
3049 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
3050 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3051 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
3052 intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
3054 /* Enable modulator and associated divider */
3055 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
3056 temp &= ~SBI_SSCCTL_DISABLE;
3057 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
3059 /* Wait for initialization time */
3062 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
3064 mutex_unlock(&dev_priv->dpio_lock);
3067 static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc,
3068 enum pipe pch_transcoder)
3070 struct drm_device *dev = crtc->base.dev;
3071 struct drm_i915_private *dev_priv = dev->dev_private;
3072 enum transcoder cpu_transcoder = crtc->config.cpu_transcoder;
3074 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder),
3075 I915_READ(HTOTAL(cpu_transcoder)));
3076 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder),
3077 I915_READ(HBLANK(cpu_transcoder)));
3078 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder),
3079 I915_READ(HSYNC(cpu_transcoder)));
3081 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder),
3082 I915_READ(VTOTAL(cpu_transcoder)));
3083 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder),
3084 I915_READ(VBLANK(cpu_transcoder)));
3085 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder),
3086 I915_READ(VSYNC(cpu_transcoder)));
3087 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder),
3088 I915_READ(VSYNCSHIFT(cpu_transcoder)));
3091 static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
3093 struct drm_i915_private *dev_priv = dev->dev_private;
3096 temp = I915_READ(SOUTH_CHICKEN1);
3097 if (temp & FDI_BC_BIFURCATION_SELECT)
3100 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
3101 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
3103 temp |= FDI_BC_BIFURCATION_SELECT;
3104 DRM_DEBUG_KMS("enabling fdi C rx\n");
3105 I915_WRITE(SOUTH_CHICKEN1, temp);
3106 POSTING_READ(SOUTH_CHICKEN1);
3109 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
3111 struct drm_device *dev = intel_crtc->base.dev;
3112 struct drm_i915_private *dev_priv = dev->dev_private;
3114 switch (intel_crtc->pipe) {
3118 if (intel_crtc->config.fdi_lanes > 2)
3119 WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
3121 cpt_enable_fdi_bc_bifurcation(dev);
3125 cpt_enable_fdi_bc_bifurcation(dev);
3134 * Enable PCH resources required for PCH ports:
3136 * - FDI training & RX/TX
3137 * - update transcoder timings
3138 * - DP transcoding bits
3141 static void ironlake_pch_enable(struct drm_crtc *crtc)
3143 struct drm_device *dev = crtc->dev;
3144 struct drm_i915_private *dev_priv = dev->dev_private;
3145 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3146 int pipe = intel_crtc->pipe;
3149 assert_pch_transcoder_disabled(dev_priv, pipe);
3151 if (IS_IVYBRIDGE(dev))
3152 ivybridge_update_fdi_bc_bifurcation(intel_crtc);
3154 /* Write the TU size bits before fdi link training, so that error
3155 * detection works. */
3156 I915_WRITE(FDI_RX_TUSIZE1(pipe),
3157 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
3159 /* For PCH output, training FDI link */
3160 dev_priv->display.fdi_link_train(crtc);
3162 /* We need to program the right clock selection before writing the pixel
3163 * mutliplier into the DPLL. */
3164 if (HAS_PCH_CPT(dev)) {
3167 temp = I915_READ(PCH_DPLL_SEL);
3168 temp |= TRANS_DPLL_ENABLE(pipe);
3169 sel = TRANS_DPLLB_SEL(pipe);
3170 if (intel_crtc->config.shared_dpll == DPLL_ID_PCH_PLL_B)
3174 I915_WRITE(PCH_DPLL_SEL, temp);
3177 /* XXX: pch pll's can be enabled any time before we enable the PCH
3178 * transcoder, and we actually should do this to not upset any PCH
3179 * transcoder that already use the clock when we share it.
3181 * Note that enable_shared_dpll tries to do the right thing, but
3182 * get_shared_dpll unconditionally resets the pll - we need that to have
3183 * the right LVDS enable sequence. */
3184 ironlake_enable_shared_dpll(intel_crtc);
3186 /* set transcoder timing, panel must allow it */
3187 assert_panel_unlocked(dev_priv, pipe);
3188 ironlake_pch_transcoder_set_timings(intel_crtc, pipe);
3190 intel_fdi_normal_train(crtc);
3192 /* For PCH DP, enable TRANS_DP_CTL */
3193 if (HAS_PCH_CPT(dev) &&
3194 (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
3195 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
3196 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
3197 reg = TRANS_DP_CTL(pipe);
3198 temp = I915_READ(reg);
3199 temp &= ~(TRANS_DP_PORT_SEL_MASK |
3200 TRANS_DP_SYNC_MASK |
3202 temp |= (TRANS_DP_OUTPUT_ENABLE |
3203 TRANS_DP_ENH_FRAMING);
3204 temp |= bpc << 9; /* same format but at 11:9 */
3206 if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
3207 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
3208 if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
3209 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
3211 switch (intel_trans_dp_port_sel(crtc)) {
3213 temp |= TRANS_DP_PORT_SEL_B;
3216 temp |= TRANS_DP_PORT_SEL_C;
3219 temp |= TRANS_DP_PORT_SEL_D;
3225 I915_WRITE(reg, temp);
3228 ironlake_enable_pch_transcoder(dev_priv, pipe);
3231 static void lpt_pch_enable(struct drm_crtc *crtc)
3233 struct drm_device *dev = crtc->dev;
3234 struct drm_i915_private *dev_priv = dev->dev_private;
3235 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3236 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
3238 assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
3240 lpt_program_iclkip(crtc);
3242 /* Set transcoder timing. */
3243 ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A);
3245 lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
3248 static void intel_put_shared_dpll(struct intel_crtc *crtc)
3250 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
3255 if (pll->refcount == 0) {
3256 WARN(1, "bad %s refcount\n", pll->name);
3260 if (--pll->refcount == 0) {
3262 WARN_ON(pll->active);
3265 crtc->config.shared_dpll = DPLL_ID_PRIVATE;
3268 static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc)
3270 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
3271 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
3272 enum intel_dpll_id i;
3275 DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
3276 crtc->base.base.id, pll->name);
3277 intel_put_shared_dpll(crtc);
3280 if (HAS_PCH_IBX(dev_priv->dev)) {
3281 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3282 i = (enum intel_dpll_id) crtc->pipe;
3283 pll = &dev_priv->shared_dplls[i];
3285 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
3286 crtc->base.base.id, pll->name);
3291 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3292 pll = &dev_priv->shared_dplls[i];
3294 /* Only want to check enabled timings first */
3295 if (pll->refcount == 0)
3298 if (memcmp(&crtc->config.dpll_hw_state, &pll->hw_state,
3299 sizeof(pll->hw_state)) == 0) {
3300 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
3302 pll->name, pll->refcount, pll->active);
3308 /* Ok no matching timings, maybe there's a free one? */
3309 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3310 pll = &dev_priv->shared_dplls[i];
3311 if (pll->refcount == 0) {
3312 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
3313 crtc->base.base.id, pll->name);
3321 crtc->config.shared_dpll = i;
3322 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name,
3323 pipe_name(crtc->pipe));
3325 if (pll->active == 0) {
3326 memcpy(&pll->hw_state, &crtc->config.dpll_hw_state,
3327 sizeof(pll->hw_state));
3329 DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
3331 assert_shared_dpll_disabled(dev_priv, pll);
3333 pll->mode_set(dev_priv, pll);
3340 static void cpt_verify_modeset(struct drm_device *dev, int pipe)
3342 struct drm_i915_private *dev_priv = dev->dev_private;
3343 int dslreg = PIPEDSL(pipe);
3346 temp = I915_READ(dslreg);
3348 if (wait_for(I915_READ(dslreg) != temp, 5)) {
3349 if (wait_for(I915_READ(dslreg) != temp, 5))
3350 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe));
3354 static void ironlake_pfit_enable(struct intel_crtc *crtc)
3356 struct drm_device *dev = crtc->base.dev;
3357 struct drm_i915_private *dev_priv = dev->dev_private;
3358 int pipe = crtc->pipe;
3360 if (crtc->config.pch_pfit.enabled) {
3361 /* Force use of hard-coded filter coefficients
3362 * as some pre-programmed values are broken,
3365 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
3366 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
3367 PF_PIPE_SEL_IVB(pipe));
3369 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
3370 I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos);
3371 I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size);
3375 static void intel_enable_planes(struct drm_crtc *crtc)
3377 struct drm_device *dev = crtc->dev;
3378 enum pipe pipe = to_intel_crtc(crtc)->pipe;
3379 struct intel_plane *intel_plane;
3381 list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head)
3382 if (intel_plane->pipe == pipe)
3383 intel_plane_restore(&intel_plane->base);
3386 static void intel_disable_planes(struct drm_crtc *crtc)
3388 struct drm_device *dev = crtc->dev;
3389 enum pipe pipe = to_intel_crtc(crtc)->pipe;
3390 struct intel_plane *intel_plane;
3392 list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head)
3393 if (intel_plane->pipe == pipe)
3394 intel_plane_disable(&intel_plane->base);
3397 void hsw_enable_ips(struct intel_crtc *crtc)
3399 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
3401 if (!crtc->config.ips_enabled)
3404 /* We can only enable IPS after we enable a plane and wait for a vblank.
3405 * We guarantee that the plane is enabled by calling intel_enable_ips
3406 * only after intel_enable_plane. And intel_enable_plane already waits
3407 * for a vblank, so all we need to do here is to enable the IPS bit. */
3408 assert_plane_enabled(dev_priv, crtc->plane);
3409 if (IS_BROADWELL(crtc->base.dev)) {
3410 mutex_lock(&dev_priv->rps.hw_lock);
3411 WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0xc0000000));
3412 mutex_unlock(&dev_priv->rps.hw_lock);
3413 /* Quoting Art Runyan: "its not safe to expect any particular
3414 * value in IPS_CTL bit 31 after enabling IPS through the
3415 * mailbox." Therefore we need to defer waiting on the state
3417 * TODO: need to fix this for state checker
3420 I915_WRITE(IPS_CTL, IPS_ENABLE);
3421 /* The bit only becomes 1 in the next vblank, so this wait here
3422 * is essentially intel_wait_for_vblank. If we don't have this
3423 * and don't wait for vblanks until the end of crtc_enable, then
3424 * the HW state readout code will complain that the expected
3425 * IPS_CTL value is not the one we read. */
3426 if (wait_for(I915_READ_NOTRACE(IPS_CTL) & IPS_ENABLE, 50))
3427 DRM_ERROR("Timed out waiting for IPS enable\n");
3431 void hsw_disable_ips(struct intel_crtc *crtc)
3433 struct drm_device *dev = crtc->base.dev;
3434 struct drm_i915_private *dev_priv = dev->dev_private;
3436 if (!crtc->config.ips_enabled)
3439 assert_plane_enabled(dev_priv, crtc->plane);
3440 if (IS_BROADWELL(crtc->base.dev)) {
3441 mutex_lock(&dev_priv->rps.hw_lock);
3442 WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0));
3443 mutex_unlock(&dev_priv->rps.hw_lock);
3445 I915_WRITE(IPS_CTL, 0);
3446 POSTING_READ(IPS_CTL);
3448 /* We need to wait for a vblank before we can disable the plane. */
3449 intel_wait_for_vblank(dev, crtc->pipe);
3452 /** Loads the palette/gamma unit for the CRTC with the prepared values */
3453 static void intel_crtc_load_lut(struct drm_crtc *crtc)
3455 struct drm_device *dev = crtc->dev;
3456 struct drm_i915_private *dev_priv = dev->dev_private;
3457 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3458 enum pipe pipe = intel_crtc->pipe;
3459 int palreg = PALETTE(pipe);
3461 bool reenable_ips = false;
3463 /* The clocks have to be on to load the palette. */
3464 if (!crtc->enabled || !intel_crtc->active)
3467 if (!HAS_PCH_SPLIT(dev_priv->dev)) {
3468 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI))
3469 assert_dsi_pll_enabled(dev_priv);
3471 assert_pll_enabled(dev_priv, pipe);
3474 /* use legacy palette for Ironlake */
3475 if (HAS_PCH_SPLIT(dev))
3476 palreg = LGC_PALETTE(pipe);
3478 /* Workaround : Do not read or write the pipe palette/gamma data while
3479 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
3481 if (intel_crtc->config.ips_enabled &&
3482 ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) ==
3483 GAMMA_MODE_MODE_SPLIT)) {
3484 hsw_disable_ips(intel_crtc);
3485 reenable_ips = true;
3488 for (i = 0; i < 256; i++) {
3489 I915_WRITE(palreg + 4 * i,
3490 (intel_crtc->lut_r[i] << 16) |
3491 (intel_crtc->lut_g[i] << 8) |
3492 intel_crtc->lut_b[i]);
3496 hsw_enable_ips(intel_crtc);
3499 static void ironlake_crtc_enable(struct drm_crtc *crtc)
3501 struct drm_device *dev = crtc->dev;
3502 struct drm_i915_private *dev_priv = dev->dev_private;
3503 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3504 struct intel_encoder *encoder;
3505 int pipe = intel_crtc->pipe;
3506 int plane = intel_crtc->plane;
3508 WARN_ON(!crtc->enabled);
3510 if (intel_crtc->active)
3513 intel_crtc->active = true;
3515 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3516 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3518 for_each_encoder_on_crtc(dev, crtc, encoder)
3519 if (encoder->pre_enable)
3520 encoder->pre_enable(encoder);
3522 if (intel_crtc->config.has_pch_encoder) {
3523 /* Note: FDI PLL enabling _must_ be done before we enable the
3524 * cpu pipes, hence this is separate from all the other fdi/pch
3526 ironlake_fdi_pll_enable(intel_crtc);
3528 assert_fdi_tx_disabled(dev_priv, pipe);
3529 assert_fdi_rx_disabled(dev_priv, pipe);
3532 ironlake_pfit_enable(intel_crtc);
3535 * On ILK+ LUT must be loaded before the pipe is running but with
3538 intel_crtc_load_lut(crtc);
3540 intel_update_watermarks(crtc);
3541 intel_enable_pipe(dev_priv, pipe,
3542 intel_crtc->config.has_pch_encoder, false);
3543 intel_enable_primary_plane(dev_priv, plane, pipe);
3544 intel_enable_planes(crtc);
3545 intel_crtc_update_cursor(crtc, true);
3547 if (intel_crtc->config.has_pch_encoder)
3548 ironlake_pch_enable(crtc);
3550 mutex_lock(&dev->struct_mutex);
3551 intel_update_fbc(dev);
3552 mutex_unlock(&dev->struct_mutex);
3554 for_each_encoder_on_crtc(dev, crtc, encoder)
3555 encoder->enable(encoder);
3557 if (HAS_PCH_CPT(dev))
3558 cpt_verify_modeset(dev, intel_crtc->pipe);
3561 * There seems to be a race in PCH platform hw (at least on some
3562 * outputs) where an enabled pipe still completes any pageflip right
3563 * away (as if the pipe is off) instead of waiting for vblank. As soon
3564 * as the first vblank happend, everything works as expected. Hence just
3565 * wait for one vblank before returning to avoid strange things
3568 intel_wait_for_vblank(dev, intel_crtc->pipe);
3571 /* IPS only exists on ULT machines and is tied to pipe A. */
3572 static bool hsw_crtc_supports_ips(struct intel_crtc *crtc)
3574 return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A;
3577 static void haswell_crtc_enable_planes(struct drm_crtc *crtc)
3579 struct drm_device *dev = crtc->dev;
3580 struct drm_i915_private *dev_priv = dev->dev_private;
3581 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3582 int pipe = intel_crtc->pipe;
3583 int plane = intel_crtc->plane;
3585 intel_enable_primary_plane(dev_priv, plane, pipe);
3586 intel_enable_planes(crtc);
3587 intel_crtc_update_cursor(crtc, true);
3589 hsw_enable_ips(intel_crtc);
3591 mutex_lock(&dev->struct_mutex);
3592 intel_update_fbc(dev);
3593 mutex_unlock(&dev->struct_mutex);
3596 static void haswell_crtc_disable_planes(struct drm_crtc *crtc)
3598 struct drm_device *dev = crtc->dev;
3599 struct drm_i915_private *dev_priv = dev->dev_private;
3600 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3601 int pipe = intel_crtc->pipe;
3602 int plane = intel_crtc->plane;
3604 intel_crtc_wait_for_pending_flips(crtc);
3605 drm_vblank_off(dev, pipe);
3607 /* FBC must be disabled before disabling the plane on HSW. */
3608 if (dev_priv->fbc.plane == plane)
3609 intel_disable_fbc(dev);
3611 hsw_disable_ips(intel_crtc);
3613 intel_crtc_update_cursor(crtc, false);
3614 intel_disable_planes(crtc);
3615 intel_disable_primary_plane(dev_priv, plane, pipe);
3619 * This implements the workaround described in the "notes" section of the mode
3620 * set sequence documentation. When going from no pipes or single pipe to
3621 * multiple pipes, and planes are enabled after the pipe, we need to wait at
3622 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
3624 static void haswell_mode_set_planes_workaround(struct intel_crtc *crtc)
3626 struct drm_device *dev = crtc->base.dev;
3627 struct intel_crtc *crtc_it, *other_active_crtc = NULL;
3629 /* We want to get the other_active_crtc only if there's only 1 other
3631 list_for_each_entry(crtc_it, &dev->mode_config.crtc_list, base.head) {
3632 if (!crtc_it->active || crtc_it == crtc)
3635 if (other_active_crtc)
3638 other_active_crtc = crtc_it;
3640 if (!other_active_crtc)
3643 intel_wait_for_vblank(dev, other_active_crtc->pipe);
3644 intel_wait_for_vblank(dev, other_active_crtc->pipe);
3647 static void haswell_crtc_enable(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;
3655 WARN_ON(!crtc->enabled);
3657 if (intel_crtc->active)
3660 intel_crtc->active = true;
3662 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3663 if (intel_crtc->config.has_pch_encoder)
3664 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3666 if (intel_crtc->config.has_pch_encoder)
3667 dev_priv->display.fdi_link_train(crtc);
3669 for_each_encoder_on_crtc(dev, crtc, encoder)
3670 if (encoder->pre_enable)
3671 encoder->pre_enable(encoder);
3673 intel_ddi_enable_pipe_clock(intel_crtc);
3675 ironlake_pfit_enable(intel_crtc);
3678 * On ILK+ LUT must be loaded before the pipe is running but with
3681 intel_crtc_load_lut(crtc);
3683 intel_ddi_set_pipe_settings(crtc);
3684 intel_ddi_enable_transcoder_func(crtc);
3686 intel_update_watermarks(crtc);
3687 intel_enable_pipe(dev_priv, pipe,
3688 intel_crtc->config.has_pch_encoder, false);
3690 if (intel_crtc->config.has_pch_encoder)
3691 lpt_pch_enable(crtc);
3693 for_each_encoder_on_crtc(dev, crtc, encoder) {
3694 encoder->enable(encoder);
3695 intel_opregion_notify_encoder(encoder, true);
3698 /* If we change the relative order between pipe/planes enabling, we need
3699 * to change the workaround. */
3700 haswell_mode_set_planes_workaround(intel_crtc);
3701 haswell_crtc_enable_planes(crtc);
3704 * There seems to be a race in PCH platform hw (at least on some
3705 * outputs) where an enabled pipe still completes any pageflip right
3706 * away (as if the pipe is off) instead of waiting for vblank. As soon
3707 * as the first vblank happend, everything works as expected. Hence just
3708 * wait for one vblank before returning to avoid strange things
3711 intel_wait_for_vblank(dev, intel_crtc->pipe);
3714 static void ironlake_pfit_disable(struct intel_crtc *crtc)
3716 struct drm_device *dev = crtc->base.dev;
3717 struct drm_i915_private *dev_priv = dev->dev_private;
3718 int pipe = crtc->pipe;
3720 /* To avoid upsetting the power well on haswell only disable the pfit if
3721 * it's in use. The hw state code will make sure we get this right. */
3722 if (crtc->config.pch_pfit.enabled) {
3723 I915_WRITE(PF_CTL(pipe), 0);
3724 I915_WRITE(PF_WIN_POS(pipe), 0);
3725 I915_WRITE(PF_WIN_SZ(pipe), 0);
3729 static void ironlake_crtc_disable(struct drm_crtc *crtc)
3731 struct drm_device *dev = crtc->dev;
3732 struct drm_i915_private *dev_priv = dev->dev_private;
3733 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3734 struct intel_encoder *encoder;
3735 int pipe = intel_crtc->pipe;
3736 int plane = intel_crtc->plane;
3740 if (!intel_crtc->active)
3743 for_each_encoder_on_crtc(dev, crtc, encoder)
3744 encoder->disable(encoder);
3746 intel_crtc_wait_for_pending_flips(crtc);
3747 drm_vblank_off(dev, pipe);
3749 if (dev_priv->fbc.plane == plane)
3750 intel_disable_fbc(dev);
3752 intel_crtc_update_cursor(crtc, false);
3753 intel_disable_planes(crtc);
3754 intel_disable_primary_plane(dev_priv, plane, pipe);
3756 if (intel_crtc->config.has_pch_encoder)
3757 intel_set_pch_fifo_underrun_reporting(dev, pipe, false);
3759 intel_disable_pipe(dev_priv, pipe);
3761 ironlake_pfit_disable(intel_crtc);
3763 for_each_encoder_on_crtc(dev, crtc, encoder)
3764 if (encoder->post_disable)
3765 encoder->post_disable(encoder);
3767 if (intel_crtc->config.has_pch_encoder) {
3768 ironlake_fdi_disable(crtc);
3770 ironlake_disable_pch_transcoder(dev_priv, pipe);
3771 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3773 if (HAS_PCH_CPT(dev)) {
3774 /* disable TRANS_DP_CTL */
3775 reg = TRANS_DP_CTL(pipe);
3776 temp = I915_READ(reg);
3777 temp &= ~(TRANS_DP_OUTPUT_ENABLE |
3778 TRANS_DP_PORT_SEL_MASK);
3779 temp |= TRANS_DP_PORT_SEL_NONE;
3780 I915_WRITE(reg, temp);
3782 /* disable DPLL_SEL */
3783 temp = I915_READ(PCH_DPLL_SEL);
3784 temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe));
3785 I915_WRITE(PCH_DPLL_SEL, temp);
3788 /* disable PCH DPLL */
3789 intel_disable_shared_dpll(intel_crtc);
3791 ironlake_fdi_pll_disable(intel_crtc);
3794 intel_crtc->active = false;
3795 intel_update_watermarks(crtc);
3797 mutex_lock(&dev->struct_mutex);
3798 intel_update_fbc(dev);
3799 mutex_unlock(&dev->struct_mutex);
3802 static void haswell_crtc_disable(struct drm_crtc *crtc)
3804 struct drm_device *dev = crtc->dev;
3805 struct drm_i915_private *dev_priv = dev->dev_private;
3806 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3807 struct intel_encoder *encoder;
3808 int pipe = intel_crtc->pipe;
3809 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
3811 if (!intel_crtc->active)
3814 haswell_crtc_disable_planes(crtc);
3816 for_each_encoder_on_crtc(dev, crtc, encoder) {
3817 intel_opregion_notify_encoder(encoder, false);
3818 encoder->disable(encoder);
3821 if (intel_crtc->config.has_pch_encoder)
3822 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false);
3823 intel_disable_pipe(dev_priv, pipe);
3825 intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
3827 ironlake_pfit_disable(intel_crtc);
3829 intel_ddi_disable_pipe_clock(intel_crtc);
3831 for_each_encoder_on_crtc(dev, crtc, encoder)
3832 if (encoder->post_disable)
3833 encoder->post_disable(encoder);
3835 if (intel_crtc->config.has_pch_encoder) {
3836 lpt_disable_pch_transcoder(dev_priv);
3837 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3838 intel_ddi_fdi_disable(crtc);
3841 intel_crtc->active = false;
3842 intel_update_watermarks(crtc);
3844 mutex_lock(&dev->struct_mutex);
3845 intel_update_fbc(dev);
3846 mutex_unlock(&dev->struct_mutex);
3849 static void ironlake_crtc_off(struct drm_crtc *crtc)
3851 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3852 intel_put_shared_dpll(intel_crtc);
3855 static void haswell_crtc_off(struct drm_crtc *crtc)
3857 intel_ddi_put_crtc_pll(crtc);
3860 static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
3862 if (!enable && intel_crtc->overlay) {
3863 struct drm_device *dev = intel_crtc->base.dev;
3864 struct drm_i915_private *dev_priv = dev->dev_private;
3866 mutex_lock(&dev->struct_mutex);
3867 dev_priv->mm.interruptible = false;
3868 (void) intel_overlay_switch_off(intel_crtc->overlay);
3869 dev_priv->mm.interruptible = true;
3870 mutex_unlock(&dev->struct_mutex);
3873 /* Let userspace switch the overlay on again. In most cases userspace
3874 * has to recompute where to put it anyway.
3879 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
3880 * cursor plane briefly if not already running after enabling the display
3882 * This workaround avoids occasional blank screens when self refresh is
3886 g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe)
3888 u32 cntl = I915_READ(CURCNTR(pipe));
3890 if ((cntl & CURSOR_MODE) == 0) {
3891 u32 fw_bcl_self = I915_READ(FW_BLC_SELF);
3893 I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN);
3894 I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX);
3895 intel_wait_for_vblank(dev_priv->dev, pipe);
3896 I915_WRITE(CURCNTR(pipe), cntl);
3897 I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe)));
3898 I915_WRITE(FW_BLC_SELF, fw_bcl_self);
3902 static void i9xx_pfit_enable(struct intel_crtc *crtc)
3904 struct drm_device *dev = crtc->base.dev;
3905 struct drm_i915_private *dev_priv = dev->dev_private;
3906 struct intel_crtc_config *pipe_config = &crtc->config;
3908 if (!crtc->config.gmch_pfit.control)
3912 * The panel fitter should only be adjusted whilst the pipe is disabled,
3913 * according to register description and PRM.
3915 WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
3916 assert_pipe_disabled(dev_priv, crtc->pipe);
3918 I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios);
3919 I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control);
3921 /* Border color in case we don't scale up to the full screen. Black by
3922 * default, change to something else for debugging. */
3923 I915_WRITE(BCLRPAT(crtc->pipe), 0);
3926 int valleyview_get_vco(struct drm_i915_private *dev_priv)
3928 int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 };
3930 /* Obtain SKU information */
3931 mutex_lock(&dev_priv->dpio_lock);
3932 hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) &
3933 CCK_FUSE_HPLL_FREQ_MASK;
3934 mutex_unlock(&dev_priv->dpio_lock);
3936 return vco_freq[hpll_freq];
3939 /* Adjust CDclk dividers to allow high res or save power if possible */
3940 static void valleyview_set_cdclk(struct drm_device *dev, int cdclk)
3942 struct drm_i915_private *dev_priv = dev->dev_private;
3945 if (cdclk >= 320) /* jump to highest voltage for 400MHz too */
3947 else if (cdclk == 266)
3952 mutex_lock(&dev_priv->rps.hw_lock);
3953 val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ);
3954 val &= ~DSPFREQGUAR_MASK;
3955 val |= (cmd << DSPFREQGUAR_SHIFT);
3956 vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val);
3957 if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) &
3958 DSPFREQSTAT_MASK) == (cmd << DSPFREQSTAT_SHIFT),
3960 DRM_ERROR("timed out waiting for CDclk change\n");
3962 mutex_unlock(&dev_priv->rps.hw_lock);
3967 vco = valleyview_get_vco(dev_priv);
3968 divider = ((vco << 1) / cdclk) - 1;
3970 mutex_lock(&dev_priv->dpio_lock);
3971 /* adjust cdclk divider */
3972 val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
3975 vlv_cck_write(dev_priv, CCK_DISPLAY_CLOCK_CONTROL, val);
3976 mutex_unlock(&dev_priv->dpio_lock);
3979 mutex_lock(&dev_priv->dpio_lock);
3980 /* adjust self-refresh exit latency value */
3981 val = vlv_bunit_read(dev_priv, BUNIT_REG_BISOC);
3985 * For high bandwidth configs, we set a higher latency in the bunit
3986 * so that the core display fetch happens in time to avoid underruns.
3989 val |= 4500 / 250; /* 4.5 usec */
3991 val |= 3000 / 250; /* 3.0 usec */
3992 vlv_bunit_write(dev_priv, BUNIT_REG_BISOC, val);
3993 mutex_unlock(&dev_priv->dpio_lock);
3995 /* Since we changed the CDclk, we need to update the GMBUSFREQ too */
3996 intel_i2c_reset(dev);
3999 static int valleyview_cur_cdclk(struct drm_i915_private *dev_priv)
4004 vco = valleyview_get_vco(dev_priv);
4006 mutex_lock(&dev_priv->dpio_lock);
4007 divider = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
4008 mutex_unlock(&dev_priv->dpio_lock);
4012 cur_cdclk = (vco << 1) / (divider + 1);
4017 static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv,
4022 cur_cdclk = valleyview_cur_cdclk(dev_priv);
4025 * Really only a few cases to deal with, as only 4 CDclks are supported:
4030 * So we check to see whether we're above 90% of the lower bin and
4033 if (max_pixclk > 288000) {
4035 } else if (max_pixclk > 240000) {
4039 /* Looks like the 200MHz CDclk freq doesn't work on some configs */
4042 static int intel_mode_max_pixclk(struct drm_i915_private *dev_priv,
4043 unsigned modeset_pipes,
4044 struct intel_crtc_config *pipe_config)
4046 struct drm_device *dev = dev_priv->dev;
4047 struct intel_crtc *intel_crtc;
4050 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
4052 if (modeset_pipes & (1 << intel_crtc->pipe))
4053 max_pixclk = max(max_pixclk,
4054 pipe_config->adjusted_mode.crtc_clock);
4055 else if (intel_crtc->base.enabled)
4056 max_pixclk = max(max_pixclk,
4057 intel_crtc->config.adjusted_mode.crtc_clock);
4063 static void valleyview_modeset_global_pipes(struct drm_device *dev,
4064 unsigned *prepare_pipes,
4065 unsigned modeset_pipes,
4066 struct intel_crtc_config *pipe_config)
4068 struct drm_i915_private *dev_priv = dev->dev_private;
4069 struct intel_crtc *intel_crtc;
4070 int max_pixclk = intel_mode_max_pixclk(dev_priv, modeset_pipes,
4072 int cur_cdclk = valleyview_cur_cdclk(dev_priv);
4074 if (valleyview_calc_cdclk(dev_priv, max_pixclk) == cur_cdclk)
4077 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
4079 if (intel_crtc->base.enabled)
4080 *prepare_pipes |= (1 << intel_crtc->pipe);
4083 static void valleyview_modeset_global_resources(struct drm_device *dev)
4085 struct drm_i915_private *dev_priv = dev->dev_private;
4086 int max_pixclk = intel_mode_max_pixclk(dev_priv, 0, NULL);
4087 int cur_cdclk = valleyview_cur_cdclk(dev_priv);
4088 int req_cdclk = valleyview_calc_cdclk(dev_priv, max_pixclk);
4090 if (req_cdclk != cur_cdclk)
4091 valleyview_set_cdclk(dev, req_cdclk);
4094 static void valleyview_crtc_enable(struct drm_crtc *crtc)
4096 struct drm_device *dev = crtc->dev;
4097 struct drm_i915_private *dev_priv = dev->dev_private;
4098 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4099 struct intel_encoder *encoder;
4100 int pipe = intel_crtc->pipe;
4101 int plane = intel_crtc->plane;
4104 WARN_ON(!crtc->enabled);
4106 if (intel_crtc->active)
4109 intel_crtc->active = true;
4111 for_each_encoder_on_crtc(dev, crtc, encoder)
4112 if (encoder->pre_pll_enable)
4113 encoder->pre_pll_enable(encoder);
4115 is_dsi = intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI);
4118 vlv_enable_pll(intel_crtc);
4120 for_each_encoder_on_crtc(dev, crtc, encoder)
4121 if (encoder->pre_enable)
4122 encoder->pre_enable(encoder);
4124 i9xx_pfit_enable(intel_crtc);
4126 intel_crtc_load_lut(crtc);
4128 intel_update_watermarks(crtc);
4129 intel_enable_pipe(dev_priv, pipe, false, is_dsi);
4130 intel_enable_primary_plane(dev_priv, plane, pipe);
4131 intel_enable_planes(crtc);
4132 intel_crtc_update_cursor(crtc, true);
4134 intel_update_fbc(dev);
4136 for_each_encoder_on_crtc(dev, crtc, encoder)
4137 encoder->enable(encoder);
4140 static void i9xx_crtc_enable(struct drm_crtc *crtc)
4142 struct drm_device *dev = crtc->dev;
4143 struct drm_i915_private *dev_priv = dev->dev_private;
4144 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4145 struct intel_encoder *encoder;
4146 int pipe = intel_crtc->pipe;
4147 int plane = intel_crtc->plane;
4149 WARN_ON(!crtc->enabled);
4151 if (intel_crtc->active)
4154 intel_crtc->active = true;
4156 for_each_encoder_on_crtc(dev, crtc, encoder)
4157 if (encoder->pre_enable)
4158 encoder->pre_enable(encoder);
4160 i9xx_enable_pll(intel_crtc);
4162 i9xx_pfit_enable(intel_crtc);
4164 intel_crtc_load_lut(crtc);
4166 intel_update_watermarks(crtc);
4167 intel_enable_pipe(dev_priv, pipe, false, false);
4168 intel_enable_primary_plane(dev_priv, plane, pipe);
4169 intel_enable_planes(crtc);
4170 /* The fixup needs to happen before cursor is enabled */
4172 g4x_fixup_plane(dev_priv, pipe);
4173 intel_crtc_update_cursor(crtc, true);
4175 /* Give the overlay scaler a chance to enable if it's on this pipe */
4176 intel_crtc_dpms_overlay(intel_crtc, true);
4178 intel_update_fbc(dev);
4180 for_each_encoder_on_crtc(dev, crtc, encoder)
4181 encoder->enable(encoder);
4184 static void i9xx_pfit_disable(struct intel_crtc *crtc)
4186 struct drm_device *dev = crtc->base.dev;
4187 struct drm_i915_private *dev_priv = dev->dev_private;
4189 if (!crtc->config.gmch_pfit.control)
4192 assert_pipe_disabled(dev_priv, crtc->pipe);
4194 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
4195 I915_READ(PFIT_CONTROL));
4196 I915_WRITE(PFIT_CONTROL, 0);
4199 static void i9xx_crtc_disable(struct drm_crtc *crtc)
4201 struct drm_device *dev = crtc->dev;
4202 struct drm_i915_private *dev_priv = dev->dev_private;
4203 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4204 struct intel_encoder *encoder;
4205 int pipe = intel_crtc->pipe;
4206 int plane = intel_crtc->plane;
4208 if (!intel_crtc->active)
4211 for_each_encoder_on_crtc(dev, crtc, encoder)
4212 encoder->disable(encoder);
4214 /* Give the overlay scaler a chance to disable if it's on this pipe */
4215 intel_crtc_wait_for_pending_flips(crtc);
4216 drm_vblank_off(dev, pipe);
4218 if (dev_priv->fbc.plane == plane)
4219 intel_disable_fbc(dev);
4221 intel_crtc_dpms_overlay(intel_crtc, false);
4222 intel_crtc_update_cursor(crtc, false);
4223 intel_disable_planes(crtc);
4224 intel_disable_primary_plane(dev_priv, plane, pipe);
4226 intel_disable_pipe(dev_priv, pipe);
4228 i9xx_pfit_disable(intel_crtc);
4230 for_each_encoder_on_crtc(dev, crtc, encoder)
4231 if (encoder->post_disable)
4232 encoder->post_disable(encoder);
4234 if (IS_VALLEYVIEW(dev) && !intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI))
4235 vlv_disable_pll(dev_priv, pipe);
4236 else if (!IS_VALLEYVIEW(dev))
4237 i9xx_disable_pll(dev_priv, pipe);
4239 intel_crtc->active = false;
4240 intel_update_watermarks(crtc);
4242 intel_update_fbc(dev);
4245 static void i9xx_crtc_off(struct drm_crtc *crtc)
4249 static void intel_crtc_update_sarea(struct drm_crtc *crtc,
4252 struct drm_device *dev = crtc->dev;
4253 struct drm_i915_master_private *master_priv;
4254 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4255 int pipe = intel_crtc->pipe;
4257 if (!dev->primary->master)
4260 master_priv = dev->primary->master->driver_priv;
4261 if (!master_priv->sarea_priv)
4266 master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
4267 master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
4270 master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
4271 master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
4274 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
4280 * Sets the power management mode of the pipe and plane.
4282 void intel_crtc_update_dpms(struct drm_crtc *crtc)
4284 struct drm_device *dev = crtc->dev;
4285 struct drm_i915_private *dev_priv = dev->dev_private;
4286 struct intel_encoder *intel_encoder;
4287 bool enable = false;
4289 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
4290 enable |= intel_encoder->connectors_active;
4293 dev_priv->display.crtc_enable(crtc);
4295 dev_priv->display.crtc_disable(crtc);
4297 intel_crtc_update_sarea(crtc, enable);
4300 static void intel_crtc_disable(struct drm_crtc *crtc)
4302 struct drm_device *dev = crtc->dev;
4303 struct drm_connector *connector;
4304 struct drm_i915_private *dev_priv = dev->dev_private;
4305 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4307 /* crtc should still be enabled when we disable it. */
4308 WARN_ON(!crtc->enabled);
4310 dev_priv->display.crtc_disable(crtc);
4311 intel_crtc->eld_vld = false;
4312 intel_crtc_update_sarea(crtc, false);
4313 dev_priv->display.off(crtc);
4315 assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
4316 assert_cursor_disabled(dev_priv, to_intel_crtc(crtc)->pipe);
4317 assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
4320 mutex_lock(&dev->struct_mutex);
4321 intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
4322 mutex_unlock(&dev->struct_mutex);
4326 /* Update computed state. */
4327 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
4328 if (!connector->encoder || !connector->encoder->crtc)
4331 if (connector->encoder->crtc != crtc)
4334 connector->dpms = DRM_MODE_DPMS_OFF;
4335 to_intel_encoder(connector->encoder)->connectors_active = false;
4339 void intel_encoder_destroy(struct drm_encoder *encoder)
4341 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
4343 drm_encoder_cleanup(encoder);
4344 kfree(intel_encoder);
4347 /* Simple dpms helper for encoders with just one connector, no cloning and only
4348 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
4349 * state of the entire output pipe. */
4350 static void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
4352 if (mode == DRM_MODE_DPMS_ON) {
4353 encoder->connectors_active = true;
4355 intel_crtc_update_dpms(encoder->base.crtc);
4357 encoder->connectors_active = false;
4359 intel_crtc_update_dpms(encoder->base.crtc);
4363 /* Cross check the actual hw state with our own modeset state tracking (and it's
4364 * internal consistency). */
4365 static void intel_connector_check_state(struct intel_connector *connector)
4367 if (connector->get_hw_state(connector)) {
4368 struct intel_encoder *encoder = connector->encoder;
4369 struct drm_crtc *crtc;
4370 bool encoder_enabled;
4373 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
4374 connector->base.base.id,
4375 drm_get_connector_name(&connector->base));
4377 WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
4378 "wrong connector dpms state\n");
4379 WARN(connector->base.encoder != &encoder->base,
4380 "active connector not linked to encoder\n");
4381 WARN(!encoder->connectors_active,
4382 "encoder->connectors_active not set\n");
4384 encoder_enabled = encoder->get_hw_state(encoder, &pipe);
4385 WARN(!encoder_enabled, "encoder not enabled\n");
4386 if (WARN_ON(!encoder->base.crtc))
4389 crtc = encoder->base.crtc;
4391 WARN(!crtc->enabled, "crtc not enabled\n");
4392 WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
4393 WARN(pipe != to_intel_crtc(crtc)->pipe,
4394 "encoder active on the wrong pipe\n");
4398 /* Even simpler default implementation, if there's really no special case to
4400 void intel_connector_dpms(struct drm_connector *connector, int mode)
4402 /* All the simple cases only support two dpms states. */
4403 if (mode != DRM_MODE_DPMS_ON)
4404 mode = DRM_MODE_DPMS_OFF;
4406 if (mode == connector->dpms)
4409 connector->dpms = mode;
4411 /* Only need to change hw state when actually enabled */
4412 if (connector->encoder)
4413 intel_encoder_dpms(to_intel_encoder(connector->encoder), mode);
4415 intel_modeset_check_state(connector->dev);
4418 /* Simple connector->get_hw_state implementation for encoders that support only
4419 * one connector and no cloning and hence the encoder state determines the state
4420 * of the connector. */
4421 bool intel_connector_get_hw_state(struct intel_connector *connector)
4424 struct intel_encoder *encoder = connector->encoder;
4426 return encoder->get_hw_state(encoder, &pipe);
4429 static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
4430 struct intel_crtc_config *pipe_config)
4432 struct drm_i915_private *dev_priv = dev->dev_private;
4433 struct intel_crtc *pipe_B_crtc =
4434 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
4436 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
4437 pipe_name(pipe), pipe_config->fdi_lanes);
4438 if (pipe_config->fdi_lanes > 4) {
4439 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
4440 pipe_name(pipe), pipe_config->fdi_lanes);
4444 if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
4445 if (pipe_config->fdi_lanes > 2) {
4446 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
4447 pipe_config->fdi_lanes);
4454 if (INTEL_INFO(dev)->num_pipes == 2)
4457 /* Ivybridge 3 pipe is really complicated */
4462 if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled &&
4463 pipe_config->fdi_lanes > 2) {
4464 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4465 pipe_name(pipe), pipe_config->fdi_lanes);
4470 if (!pipe_has_enabled_pch(pipe_B_crtc) ||
4471 pipe_B_crtc->config.fdi_lanes <= 2) {
4472 if (pipe_config->fdi_lanes > 2) {
4473 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4474 pipe_name(pipe), pipe_config->fdi_lanes);
4478 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
4488 static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc,
4489 struct intel_crtc_config *pipe_config)
4491 struct drm_device *dev = intel_crtc->base.dev;
4492 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
4493 int lane, link_bw, fdi_dotclock;
4494 bool setup_ok, needs_recompute = false;
4497 /* FDI is a binary signal running at ~2.7GHz, encoding
4498 * each output octet as 10 bits. The actual frequency
4499 * is stored as a divider into a 100MHz clock, and the
4500 * mode pixel clock is stored in units of 1KHz.
4501 * Hence the bw of each lane in terms of the mode signal
4504 link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
4506 fdi_dotclock = adjusted_mode->crtc_clock;
4508 lane = ironlake_get_lanes_required(fdi_dotclock, link_bw,
4509 pipe_config->pipe_bpp);
4511 pipe_config->fdi_lanes = lane;
4513 intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock,
4514 link_bw, &pipe_config->fdi_m_n);
4516 setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev,
4517 intel_crtc->pipe, pipe_config);
4518 if (!setup_ok && pipe_config->pipe_bpp > 6*3) {
4519 pipe_config->pipe_bpp -= 2*3;
4520 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
4521 pipe_config->pipe_bpp);
4522 needs_recompute = true;
4523 pipe_config->bw_constrained = true;
4528 if (needs_recompute)
4531 return setup_ok ? 0 : -EINVAL;
4534 static void hsw_compute_ips_config(struct intel_crtc *crtc,
4535 struct intel_crtc_config *pipe_config)
4537 pipe_config->ips_enabled = i915_enable_ips &&
4538 hsw_crtc_supports_ips(crtc) &&
4539 pipe_config->pipe_bpp <= 24;
4542 static int intel_crtc_compute_config(struct intel_crtc *crtc,
4543 struct intel_crtc_config *pipe_config)
4545 struct drm_device *dev = crtc->base.dev;
4546 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
4548 /* FIXME should check pixel clock limits on all platforms */
4549 if (INTEL_INFO(dev)->gen < 4) {
4550 struct drm_i915_private *dev_priv = dev->dev_private;
4552 dev_priv->display.get_display_clock_speed(dev);
4555 * Enable pixel doubling when the dot clock
4556 * is > 90% of the (display) core speed.
4558 * GDG double wide on either pipe,
4559 * otherwise pipe A only.
4561 if ((crtc->pipe == PIPE_A || IS_I915G(dev)) &&
4562 adjusted_mode->crtc_clock > clock_limit * 9 / 10) {
4564 pipe_config->double_wide = true;
4567 if (adjusted_mode->crtc_clock > clock_limit * 9 / 10)
4572 * Pipe horizontal size must be even in:
4574 * - LVDS dual channel mode
4575 * - Double wide pipe
4577 if ((intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4578 intel_is_dual_link_lvds(dev)) || pipe_config->double_wide)
4579 pipe_config->pipe_src_w &= ~1;
4581 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
4582 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
4584 if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) &&
4585 adjusted_mode->hsync_start == adjusted_mode->hdisplay)
4588 if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) {
4589 pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */
4590 } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) {
4591 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
4593 pipe_config->pipe_bpp = 8*3;
4597 hsw_compute_ips_config(crtc, pipe_config);
4599 /* XXX: PCH clock sharing is done in ->mode_set, so make sure the old
4600 * clock survives for now. */
4601 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
4602 pipe_config->shared_dpll = crtc->config.shared_dpll;
4604 if (pipe_config->has_pch_encoder)
4605 return ironlake_fdi_compute_config(crtc, pipe_config);
4610 static int valleyview_get_display_clock_speed(struct drm_device *dev)
4612 return 400000; /* FIXME */
4615 static int i945_get_display_clock_speed(struct drm_device *dev)
4620 static int i915_get_display_clock_speed(struct drm_device *dev)
4625 static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
4630 static int pnv_get_display_clock_speed(struct drm_device *dev)
4634 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4636 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4637 case GC_DISPLAY_CLOCK_267_MHZ_PNV:
4639 case GC_DISPLAY_CLOCK_333_MHZ_PNV:
4641 case GC_DISPLAY_CLOCK_444_MHZ_PNV:
4643 case GC_DISPLAY_CLOCK_200_MHZ_PNV:
4646 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc);
4647 case GC_DISPLAY_CLOCK_133_MHZ_PNV:
4649 case GC_DISPLAY_CLOCK_167_MHZ_PNV:
4654 static int i915gm_get_display_clock_speed(struct drm_device *dev)
4658 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4660 if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
4663 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4664 case GC_DISPLAY_CLOCK_333_MHZ:
4667 case GC_DISPLAY_CLOCK_190_200_MHZ:
4673 static int i865_get_display_clock_speed(struct drm_device *dev)
4678 static int i855_get_display_clock_speed(struct drm_device *dev)
4681 /* Assume that the hardware is in the high speed state. This
4682 * should be the default.
4684 switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
4685 case GC_CLOCK_133_200:
4686 case GC_CLOCK_100_200:
4688 case GC_CLOCK_166_250:
4690 case GC_CLOCK_100_133:
4694 /* Shouldn't happen */
4698 static int i830_get_display_clock_speed(struct drm_device *dev)
4704 intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den)
4706 while (*num > DATA_LINK_M_N_MASK ||
4707 *den > DATA_LINK_M_N_MASK) {
4713 static void compute_m_n(unsigned int m, unsigned int n,
4714 uint32_t *ret_m, uint32_t *ret_n)
4716 *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
4717 *ret_m = div_u64((uint64_t) m * *ret_n, n);
4718 intel_reduce_m_n_ratio(ret_m, ret_n);
4722 intel_link_compute_m_n(int bits_per_pixel, int nlanes,
4723 int pixel_clock, int link_clock,
4724 struct intel_link_m_n *m_n)
4728 compute_m_n(bits_per_pixel * pixel_clock,
4729 link_clock * nlanes * 8,
4730 &m_n->gmch_m, &m_n->gmch_n);
4732 compute_m_n(pixel_clock, link_clock,
4733 &m_n->link_m, &m_n->link_n);
4736 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
4738 if (i915_panel_use_ssc >= 0)
4739 return i915_panel_use_ssc != 0;
4740 return dev_priv->vbt.lvds_use_ssc
4741 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
4744 static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
4746 struct drm_device *dev = crtc->dev;
4747 struct drm_i915_private *dev_priv = dev->dev_private;
4750 if (IS_VALLEYVIEW(dev)) {
4752 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
4753 intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
4754 refclk = dev_priv->vbt.lvds_ssc_freq * 1000;
4755 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4757 } else if (!IS_GEN2(dev)) {
4766 static uint32_t pnv_dpll_compute_fp(struct dpll *dpll)
4768 return (1 << dpll->n) << 16 | dpll->m2;
4771 static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll)
4773 return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
4776 static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
4777 intel_clock_t *reduced_clock)
4779 struct drm_device *dev = crtc->base.dev;
4780 struct drm_i915_private *dev_priv = dev->dev_private;
4781 int pipe = crtc->pipe;
4784 if (IS_PINEVIEW(dev)) {
4785 fp = pnv_dpll_compute_fp(&crtc->config.dpll);
4787 fp2 = pnv_dpll_compute_fp(reduced_clock);
4789 fp = i9xx_dpll_compute_fp(&crtc->config.dpll);
4791 fp2 = i9xx_dpll_compute_fp(reduced_clock);
4794 I915_WRITE(FP0(pipe), fp);
4795 crtc->config.dpll_hw_state.fp0 = fp;
4797 crtc->lowfreq_avail = false;
4798 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4799 reduced_clock && i915_powersave) {
4800 I915_WRITE(FP1(pipe), fp2);
4801 crtc->config.dpll_hw_state.fp1 = fp2;
4802 crtc->lowfreq_avail = true;
4804 I915_WRITE(FP1(pipe), fp);
4805 crtc->config.dpll_hw_state.fp1 = fp;
4809 static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe
4815 * PLLB opamp always calibrates to max value of 0x3f, force enable it
4816 * and set it to a reasonable value instead.
4818 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
4819 reg_val &= 0xffffff00;
4820 reg_val |= 0x00000030;
4821 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
4823 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
4824 reg_val &= 0x8cffffff;
4825 reg_val = 0x8c000000;
4826 vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
4828 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
4829 reg_val &= 0xffffff00;
4830 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
4832 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
4833 reg_val &= 0x00ffffff;
4834 reg_val |= 0xb0000000;
4835 vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
4838 static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
4839 struct intel_link_m_n *m_n)
4841 struct drm_device *dev = crtc->base.dev;
4842 struct drm_i915_private *dev_priv = dev->dev_private;
4843 int pipe = crtc->pipe;
4845 I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4846 I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n);
4847 I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m);
4848 I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n);
4851 static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
4852 struct intel_link_m_n *m_n)
4854 struct drm_device *dev = crtc->base.dev;
4855 struct drm_i915_private *dev_priv = dev->dev_private;
4856 int pipe = crtc->pipe;
4857 enum transcoder transcoder = crtc->config.cpu_transcoder;
4859 if (INTEL_INFO(dev)->gen >= 5) {
4860 I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
4861 I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
4862 I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
4863 I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
4865 I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4866 I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n);
4867 I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m);
4868 I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n);
4872 static void intel_dp_set_m_n(struct intel_crtc *crtc)
4874 if (crtc->config.has_pch_encoder)
4875 intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4877 intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4880 static void vlv_update_pll(struct intel_crtc *crtc)
4882 struct drm_device *dev = crtc->base.dev;
4883 struct drm_i915_private *dev_priv = dev->dev_private;
4884 int pipe = crtc->pipe;
4886 u32 bestn, bestm1, bestm2, bestp1, bestp2;
4887 u32 coreclk, reg_val, dpll_md;
4889 mutex_lock(&dev_priv->dpio_lock);
4891 bestn = crtc->config.dpll.n;
4892 bestm1 = crtc->config.dpll.m1;
4893 bestm2 = crtc->config.dpll.m2;
4894 bestp1 = crtc->config.dpll.p1;
4895 bestp2 = crtc->config.dpll.p2;
4897 /* See eDP HDMI DPIO driver vbios notes doc */
4899 /* PLL B needs special handling */
4901 vlv_pllb_recal_opamp(dev_priv, pipe);
4903 /* Set up Tx target for periodic Rcomp update */
4904 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f);
4906 /* Disable target IRef on PLL */
4907 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe));
4908 reg_val &= 0x00ffffff;
4909 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val);
4911 /* Disable fast lock */
4912 vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610);
4914 /* Set idtafcrecal before PLL is enabled */
4915 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
4916 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
4917 mdiv |= ((bestn << DPIO_N_SHIFT));
4918 mdiv |= (1 << DPIO_K_SHIFT);
4921 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
4922 * but we don't support that).
4923 * Note: don't use the DAC post divider as it seems unstable.
4925 mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
4926 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
4928 mdiv |= DPIO_ENABLE_CALIBRATION;
4929 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
4931 /* Set HBR and RBR LPF coefficients */
4932 if (crtc->config.port_clock == 162000 ||
4933 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_ANALOG) ||
4934 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI))
4935 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
4938 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
4941 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
4942 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) {
4943 /* Use SSC source */
4945 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
4948 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
4950 } else { /* HDMI or VGA */
4951 /* Use bend source */
4953 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
4956 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
4960 coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe));
4961 coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
4962 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) ||
4963 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP))
4964 coreclk |= 0x01000000;
4965 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk);
4967 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000);
4969 /* Enable DPIO clock input */
4970 dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
4971 DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
4972 /* We should never disable this, set it here for state tracking */
4974 dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
4975 dpll |= DPLL_VCO_ENABLE;
4976 crtc->config.dpll_hw_state.dpll = dpll;
4978 dpll_md = (crtc->config.pixel_multiplier - 1)
4979 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4980 crtc->config.dpll_hw_state.dpll_md = dpll_md;
4982 if (crtc->config.has_dp_encoder)
4983 intel_dp_set_m_n(crtc);
4985 mutex_unlock(&dev_priv->dpio_lock);
4988 static void i9xx_update_pll(struct intel_crtc *crtc,
4989 intel_clock_t *reduced_clock,
4992 struct drm_device *dev = crtc->base.dev;
4993 struct drm_i915_private *dev_priv = dev->dev_private;
4996 struct dpll *clock = &crtc->config.dpll;
4998 i9xx_update_pll_dividers(crtc, reduced_clock);
5000 is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
5001 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
5003 dpll = DPLL_VGA_MODE_DIS;
5005 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS))
5006 dpll |= DPLLB_MODE_LVDS;
5008 dpll |= DPLLB_MODE_DAC_SERIAL;
5010 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
5011 dpll |= (crtc->config.pixel_multiplier - 1)
5012 << SDVO_MULTIPLIER_SHIFT_HIRES;
5016 dpll |= DPLL_SDVO_HIGH_SPEED;
5018 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
5019 dpll |= DPLL_SDVO_HIGH_SPEED;
5021 /* compute bitmask from p1 value */
5022 if (IS_PINEVIEW(dev))
5023 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
5025 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
5026 if (IS_G4X(dev) && reduced_clock)
5027 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
5029 switch (clock->p2) {
5031 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
5034 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
5037 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
5040 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
5043 if (INTEL_INFO(dev)->gen >= 4)
5044 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
5046 if (crtc->config.sdvo_tv_clock)
5047 dpll |= PLL_REF_INPUT_TVCLKINBC;
5048 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
5049 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
5050 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
5052 dpll |= PLL_REF_INPUT_DREFCLK;
5054 dpll |= DPLL_VCO_ENABLE;
5055 crtc->config.dpll_hw_state.dpll = dpll;
5057 if (INTEL_INFO(dev)->gen >= 4) {
5058 u32 dpll_md = (crtc->config.pixel_multiplier - 1)
5059 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
5060 crtc->config.dpll_hw_state.dpll_md = dpll_md;
5063 if (crtc->config.has_dp_encoder)
5064 intel_dp_set_m_n(crtc);
5067 static void i8xx_update_pll(struct intel_crtc *crtc,
5068 intel_clock_t *reduced_clock,
5071 struct drm_device *dev = crtc->base.dev;
5072 struct drm_i915_private *dev_priv = dev->dev_private;
5074 struct dpll *clock = &crtc->config.dpll;
5076 i9xx_update_pll_dividers(crtc, reduced_clock);
5078 dpll = DPLL_VGA_MODE_DIS;
5080 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
5081 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
5084 dpll |= PLL_P1_DIVIDE_BY_TWO;
5086 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
5088 dpll |= PLL_P2_DIVIDE_BY_4;
5091 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DVO))
5092 dpll |= DPLL_DVO_2X_MODE;
5094 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
5095 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
5096 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
5098 dpll |= PLL_REF_INPUT_DREFCLK;
5100 dpll |= DPLL_VCO_ENABLE;
5101 crtc->config.dpll_hw_state.dpll = dpll;
5104 static void intel_set_pipe_timings(struct intel_crtc *intel_crtc)
5106 struct drm_device *dev = intel_crtc->base.dev;
5107 struct drm_i915_private *dev_priv = dev->dev_private;
5108 enum pipe pipe = intel_crtc->pipe;
5109 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
5110 struct drm_display_mode *adjusted_mode =
5111 &intel_crtc->config.adjusted_mode;
5112 uint32_t vsyncshift, crtc_vtotal, crtc_vblank_end;
5114 /* We need to be careful not to changed the adjusted mode, for otherwise
5115 * the hw state checker will get angry at the mismatch. */
5116 crtc_vtotal = adjusted_mode->crtc_vtotal;
5117 crtc_vblank_end = adjusted_mode->crtc_vblank_end;
5119 if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
5120 /* the chip adds 2 halflines automatically */
5122 crtc_vblank_end -= 1;
5123 vsyncshift = adjusted_mode->crtc_hsync_start
5124 - adjusted_mode->crtc_htotal / 2;
5129 if (INTEL_INFO(dev)->gen > 3)
5130 I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
5132 I915_WRITE(HTOTAL(cpu_transcoder),
5133 (adjusted_mode->crtc_hdisplay - 1) |
5134 ((adjusted_mode->crtc_htotal - 1) << 16));
5135 I915_WRITE(HBLANK(cpu_transcoder),
5136 (adjusted_mode->crtc_hblank_start - 1) |
5137 ((adjusted_mode->crtc_hblank_end - 1) << 16));
5138 I915_WRITE(HSYNC(cpu_transcoder),
5139 (adjusted_mode->crtc_hsync_start - 1) |
5140 ((adjusted_mode->crtc_hsync_end - 1) << 16));
5142 I915_WRITE(VTOTAL(cpu_transcoder),
5143 (adjusted_mode->crtc_vdisplay - 1) |
5144 ((crtc_vtotal - 1) << 16));
5145 I915_WRITE(VBLANK(cpu_transcoder),
5146 (adjusted_mode->crtc_vblank_start - 1) |
5147 ((crtc_vblank_end - 1) << 16));
5148 I915_WRITE(VSYNC(cpu_transcoder),
5149 (adjusted_mode->crtc_vsync_start - 1) |
5150 ((adjusted_mode->crtc_vsync_end - 1) << 16));
5152 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
5153 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
5154 * documented on the DDI_FUNC_CTL register description, EDP Input Select
5156 if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP &&
5157 (pipe == PIPE_B || pipe == PIPE_C))
5158 I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
5160 /* pipesrc controls the size that is scaled from, which should
5161 * always be the user's requested size.
5163 I915_WRITE(PIPESRC(pipe),
5164 ((intel_crtc->config.pipe_src_w - 1) << 16) |
5165 (intel_crtc->config.pipe_src_h - 1));
5168 static void intel_get_pipe_timings(struct intel_crtc *crtc,
5169 struct intel_crtc_config *pipe_config)
5171 struct drm_device *dev = crtc->base.dev;
5172 struct drm_i915_private *dev_priv = dev->dev_private;
5173 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
5176 tmp = I915_READ(HTOTAL(cpu_transcoder));
5177 pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1;
5178 pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1;
5179 tmp = I915_READ(HBLANK(cpu_transcoder));
5180 pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1;
5181 pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1;
5182 tmp = I915_READ(HSYNC(cpu_transcoder));
5183 pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1;
5184 pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1;
5186 tmp = I915_READ(VTOTAL(cpu_transcoder));
5187 pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1;
5188 pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1;
5189 tmp = I915_READ(VBLANK(cpu_transcoder));
5190 pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1;
5191 pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1;
5192 tmp = I915_READ(VSYNC(cpu_transcoder));
5193 pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1;
5194 pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1;
5196 if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) {
5197 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE;
5198 pipe_config->adjusted_mode.crtc_vtotal += 1;
5199 pipe_config->adjusted_mode.crtc_vblank_end += 1;
5202 tmp = I915_READ(PIPESRC(crtc->pipe));
5203 pipe_config->pipe_src_h = (tmp & 0xffff) + 1;
5204 pipe_config->pipe_src_w = ((tmp >> 16) & 0xffff) + 1;
5206 pipe_config->requested_mode.vdisplay = pipe_config->pipe_src_h;
5207 pipe_config->requested_mode.hdisplay = pipe_config->pipe_src_w;
5210 static void intel_crtc_mode_from_pipe_config(struct intel_crtc *intel_crtc,
5211 struct intel_crtc_config *pipe_config)
5213 struct drm_crtc *crtc = &intel_crtc->base;
5215 crtc->mode.hdisplay = pipe_config->adjusted_mode.crtc_hdisplay;
5216 crtc->mode.htotal = pipe_config->adjusted_mode.crtc_htotal;
5217 crtc->mode.hsync_start = pipe_config->adjusted_mode.crtc_hsync_start;
5218 crtc->mode.hsync_end = pipe_config->adjusted_mode.crtc_hsync_end;
5220 crtc->mode.vdisplay = pipe_config->adjusted_mode.crtc_vdisplay;
5221 crtc->mode.vtotal = pipe_config->adjusted_mode.crtc_vtotal;
5222 crtc->mode.vsync_start = pipe_config->adjusted_mode.crtc_vsync_start;
5223 crtc->mode.vsync_end = pipe_config->adjusted_mode.crtc_vsync_end;
5225 crtc->mode.flags = pipe_config->adjusted_mode.flags;
5227 crtc->mode.clock = pipe_config->adjusted_mode.crtc_clock;
5228 crtc->mode.flags |= pipe_config->adjusted_mode.flags;
5231 static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
5233 struct drm_device *dev = intel_crtc->base.dev;
5234 struct drm_i915_private *dev_priv = dev->dev_private;
5239 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
5240 I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE)
5241 pipeconf |= PIPECONF_ENABLE;
5243 if (intel_crtc->config.double_wide)
5244 pipeconf |= PIPECONF_DOUBLE_WIDE;
5246 /* only g4x and later have fancy bpc/dither controls */
5247 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
5248 /* Bspec claims that we can't use dithering for 30bpp pipes. */
5249 if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30)
5250 pipeconf |= PIPECONF_DITHER_EN |
5251 PIPECONF_DITHER_TYPE_SP;
5253 switch (intel_crtc->config.pipe_bpp) {
5255 pipeconf |= PIPECONF_6BPC;
5258 pipeconf |= PIPECONF_8BPC;
5261 pipeconf |= PIPECONF_10BPC;
5264 /* Case prevented by intel_choose_pipe_bpp_dither. */
5269 if (HAS_PIPE_CXSR(dev)) {
5270 if (intel_crtc->lowfreq_avail) {
5271 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
5272 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
5274 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
5278 if (!IS_GEN2(dev) &&
5279 intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
5280 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
5282 pipeconf |= PIPECONF_PROGRESSIVE;
5284 if (IS_VALLEYVIEW(dev) && intel_crtc->config.limited_color_range)
5285 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
5287 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
5288 POSTING_READ(PIPECONF(intel_crtc->pipe));
5291 static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
5293 struct drm_framebuffer *fb)
5295 struct drm_device *dev = crtc->dev;
5296 struct drm_i915_private *dev_priv = dev->dev_private;
5297 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5298 int pipe = intel_crtc->pipe;
5299 int plane = intel_crtc->plane;
5300 int refclk, num_connectors = 0;
5301 intel_clock_t clock, reduced_clock;
5303 bool ok, has_reduced_clock = false;
5304 bool is_lvds = false, is_dsi = false;
5305 struct intel_encoder *encoder;
5306 const intel_limit_t *limit;
5309 for_each_encoder_on_crtc(dev, crtc, encoder) {
5310 switch (encoder->type) {
5311 case INTEL_OUTPUT_LVDS:
5314 case INTEL_OUTPUT_DSI:
5325 if (!intel_crtc->config.clock_set) {
5326 refclk = i9xx_get_refclk(crtc, num_connectors);
5329 * Returns a set of divisors for the desired target clock with
5330 * the given refclk, or FALSE. The returned values represent
5331 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
5334 limit = intel_limit(crtc, refclk);
5335 ok = dev_priv->display.find_dpll(limit, crtc,
5336 intel_crtc->config.port_clock,
5337 refclk, NULL, &clock);
5339 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5343 if (is_lvds && dev_priv->lvds_downclock_avail) {
5345 * Ensure we match the reduced clock's P to the target
5346 * clock. If the clocks don't match, we can't switch
5347 * the display clock by using the FP0/FP1. In such case
5348 * we will disable the LVDS downclock feature.
5351 dev_priv->display.find_dpll(limit, crtc,
5352 dev_priv->lvds_downclock,
5356 /* Compat-code for transition, will disappear. */
5357 intel_crtc->config.dpll.n = clock.n;
5358 intel_crtc->config.dpll.m1 = clock.m1;
5359 intel_crtc->config.dpll.m2 = clock.m2;
5360 intel_crtc->config.dpll.p1 = clock.p1;
5361 intel_crtc->config.dpll.p2 = clock.p2;
5365 i8xx_update_pll(intel_crtc,
5366 has_reduced_clock ? &reduced_clock : NULL,
5368 } else if (IS_VALLEYVIEW(dev)) {
5369 vlv_update_pll(intel_crtc);
5371 i9xx_update_pll(intel_crtc,
5372 has_reduced_clock ? &reduced_clock : NULL,
5377 /* Set up the display plane register */
5378 dspcntr = DISPPLANE_GAMMA_ENABLE;
5380 if (!IS_VALLEYVIEW(dev)) {
5382 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
5384 dspcntr |= DISPPLANE_SEL_PIPE_B;
5387 intel_set_pipe_timings(intel_crtc);
5389 /* pipesrc and dspsize control the size that is scaled from,
5390 * which should always be the user's requested size.
5392 I915_WRITE(DSPSIZE(plane),
5393 ((intel_crtc->config.pipe_src_h - 1) << 16) |
5394 (intel_crtc->config.pipe_src_w - 1));
5395 I915_WRITE(DSPPOS(plane), 0);
5397 i9xx_set_pipeconf(intel_crtc);
5399 I915_WRITE(DSPCNTR(plane), dspcntr);
5400 POSTING_READ(DSPCNTR(plane));
5402 ret = intel_pipe_set_base(crtc, x, y, fb);
5407 static void i9xx_get_pfit_config(struct intel_crtc *crtc,
5408 struct intel_crtc_config *pipe_config)
5410 struct drm_device *dev = crtc->base.dev;
5411 struct drm_i915_private *dev_priv = dev->dev_private;
5414 tmp = I915_READ(PFIT_CONTROL);
5415 if (!(tmp & PFIT_ENABLE))
5418 /* Check whether the pfit is attached to our pipe. */
5419 if (INTEL_INFO(dev)->gen < 4) {
5420 if (crtc->pipe != PIPE_B)
5423 if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT))
5427 pipe_config->gmch_pfit.control = tmp;
5428 pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS);
5429 if (INTEL_INFO(dev)->gen < 5)
5430 pipe_config->gmch_pfit.lvds_border_bits =
5431 I915_READ(LVDS) & LVDS_BORDER_ENABLE;
5434 static void vlv_crtc_clock_get(struct intel_crtc *crtc,
5435 struct intel_crtc_config *pipe_config)
5437 struct drm_device *dev = crtc->base.dev;
5438 struct drm_i915_private *dev_priv = dev->dev_private;
5439 int pipe = pipe_config->cpu_transcoder;
5440 intel_clock_t clock;
5442 int refclk = 100000;
5444 mutex_lock(&dev_priv->dpio_lock);
5445 mdiv = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW3(pipe));
5446 mutex_unlock(&dev_priv->dpio_lock);
5448 clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7;
5449 clock.m2 = mdiv & DPIO_M2DIV_MASK;
5450 clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf;
5451 clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7;
5452 clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f;
5454 vlv_clock(refclk, &clock);
5456 /* clock.dot is the fast clock */
5457 pipe_config->port_clock = clock.dot / 5;
5460 static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
5461 struct intel_crtc_config *pipe_config)
5463 struct drm_device *dev = crtc->base.dev;
5464 struct drm_i915_private *dev_priv = dev->dev_private;
5467 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
5468 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
5470 tmp = I915_READ(PIPECONF(crtc->pipe));
5471 if (!(tmp & PIPECONF_ENABLE))
5474 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
5475 switch (tmp & PIPECONF_BPC_MASK) {
5477 pipe_config->pipe_bpp = 18;
5480 pipe_config->pipe_bpp = 24;
5482 case PIPECONF_10BPC:
5483 pipe_config->pipe_bpp = 30;
5490 if (INTEL_INFO(dev)->gen < 4)
5491 pipe_config->double_wide = tmp & PIPECONF_DOUBLE_WIDE;
5493 intel_get_pipe_timings(crtc, pipe_config);
5495 i9xx_get_pfit_config(crtc, pipe_config);
5497 if (INTEL_INFO(dev)->gen >= 4) {
5498 tmp = I915_READ(DPLL_MD(crtc->pipe));
5499 pipe_config->pixel_multiplier =
5500 ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK)
5501 >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1;
5502 pipe_config->dpll_hw_state.dpll_md = tmp;
5503 } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
5504 tmp = I915_READ(DPLL(crtc->pipe));
5505 pipe_config->pixel_multiplier =
5506 ((tmp & SDVO_MULTIPLIER_MASK)
5507 >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1;
5509 /* Note that on i915G/GM the pixel multiplier is in the sdvo
5510 * port and will be fixed up in the encoder->get_config
5512 pipe_config->pixel_multiplier = 1;
5514 pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe));
5515 if (!IS_VALLEYVIEW(dev)) {
5516 pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe));
5517 pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe));
5519 /* Mask out read-only status bits. */
5520 pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV |
5521 DPLL_PORTC_READY_MASK |
5522 DPLL_PORTB_READY_MASK);
5525 if (IS_VALLEYVIEW(dev))
5526 vlv_crtc_clock_get(crtc, pipe_config);
5528 i9xx_crtc_clock_get(crtc, pipe_config);
5533 static void ironlake_init_pch_refclk(struct drm_device *dev)
5535 struct drm_i915_private *dev_priv = dev->dev_private;
5536 struct drm_mode_config *mode_config = &dev->mode_config;
5537 struct intel_encoder *encoder;
5539 bool has_lvds = false;
5540 bool has_cpu_edp = false;
5541 bool has_panel = false;
5542 bool has_ck505 = false;
5543 bool can_ssc = false;
5545 /* We need to take the global config into account */
5546 list_for_each_entry(encoder, &mode_config->encoder_list,
5548 switch (encoder->type) {
5549 case INTEL_OUTPUT_LVDS:
5553 case INTEL_OUTPUT_EDP:
5555 if (enc_to_dig_port(&encoder->base)->port == PORT_A)
5561 if (HAS_PCH_IBX(dev)) {
5562 has_ck505 = dev_priv->vbt.display_clock_mode;
5563 can_ssc = has_ck505;
5569 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
5570 has_panel, has_lvds, has_ck505);
5572 /* Ironlake: try to setup display ref clock before DPLL
5573 * enabling. This is only under driver's control after
5574 * PCH B stepping, previous chipset stepping should be
5575 * ignoring this setting.
5577 val = I915_READ(PCH_DREF_CONTROL);
5579 /* As we must carefully and slowly disable/enable each source in turn,
5580 * compute the final state we want first and check if we need to
5581 * make any changes at all.
5584 final &= ~DREF_NONSPREAD_SOURCE_MASK;
5586 final |= DREF_NONSPREAD_CK505_ENABLE;
5588 final |= DREF_NONSPREAD_SOURCE_ENABLE;
5590 final &= ~DREF_SSC_SOURCE_MASK;
5591 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5592 final &= ~DREF_SSC1_ENABLE;
5595 final |= DREF_SSC_SOURCE_ENABLE;
5597 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5598 final |= DREF_SSC1_ENABLE;
5601 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5602 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5604 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5606 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5608 final |= DREF_SSC_SOURCE_DISABLE;
5609 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5615 /* Always enable nonspread source */
5616 val &= ~DREF_NONSPREAD_SOURCE_MASK;
5619 val |= DREF_NONSPREAD_CK505_ENABLE;
5621 val |= DREF_NONSPREAD_SOURCE_ENABLE;
5624 val &= ~DREF_SSC_SOURCE_MASK;
5625 val |= DREF_SSC_SOURCE_ENABLE;
5627 /* SSC must be turned on before enabling the CPU output */
5628 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
5629 DRM_DEBUG_KMS("Using SSC on panel\n");
5630 val |= DREF_SSC1_ENABLE;
5632 val &= ~DREF_SSC1_ENABLE;
5634 /* Get SSC going before enabling the outputs */
5635 I915_WRITE(PCH_DREF_CONTROL, val);
5636 POSTING_READ(PCH_DREF_CONTROL);
5639 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5641 /* Enable CPU source on CPU attached eDP */
5643 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
5644 DRM_DEBUG_KMS("Using SSC on eDP\n");
5645 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5648 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5650 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5652 I915_WRITE(PCH_DREF_CONTROL, val);
5653 POSTING_READ(PCH_DREF_CONTROL);
5656 DRM_DEBUG_KMS("Disabling SSC entirely\n");
5658 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5660 /* Turn off CPU output */
5661 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5663 I915_WRITE(PCH_DREF_CONTROL, val);
5664 POSTING_READ(PCH_DREF_CONTROL);
5667 /* Turn off the SSC source */
5668 val &= ~DREF_SSC_SOURCE_MASK;
5669 val |= DREF_SSC_SOURCE_DISABLE;
5672 val &= ~DREF_SSC1_ENABLE;
5674 I915_WRITE(PCH_DREF_CONTROL, val);
5675 POSTING_READ(PCH_DREF_CONTROL);
5679 BUG_ON(val != final);
5682 static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv)
5686 tmp = I915_READ(SOUTH_CHICKEN2);
5687 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
5688 I915_WRITE(SOUTH_CHICKEN2, tmp);
5690 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
5691 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
5692 DRM_ERROR("FDI mPHY reset assert timeout\n");
5694 tmp = I915_READ(SOUTH_CHICKEN2);
5695 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
5696 I915_WRITE(SOUTH_CHICKEN2, tmp);
5698 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
5699 FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100))
5700 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
5703 /* WaMPhyProgramming:hsw */
5704 static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv)
5708 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
5709 tmp &= ~(0xFF << 24);
5710 tmp |= (0x12 << 24);
5711 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
5713 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
5715 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
5717 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
5719 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
5721 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
5722 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5723 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
5725 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
5726 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5727 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
5729 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
5732 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
5734 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
5737 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
5739 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
5742 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
5744 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
5747 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
5749 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
5750 tmp &= ~(0xFF << 16);
5751 tmp |= (0x1C << 16);
5752 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
5754 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
5755 tmp &= ~(0xFF << 16);
5756 tmp |= (0x1C << 16);
5757 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
5759 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
5761 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
5763 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
5765 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
5767 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
5768 tmp &= ~(0xF << 28);
5770 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
5772 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
5773 tmp &= ~(0xF << 28);
5775 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
5778 /* Implements 3 different sequences from BSpec chapter "Display iCLK
5779 * Programming" based on the parameters passed:
5780 * - Sequence to enable CLKOUT_DP
5781 * - Sequence to enable CLKOUT_DP without spread
5782 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
5784 static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread,
5787 struct drm_i915_private *dev_priv = dev->dev_private;
5790 if (WARN(with_fdi && !with_spread, "FDI requires downspread\n"))
5792 if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE &&
5793 with_fdi, "LP PCH doesn't have FDI\n"))
5796 mutex_lock(&dev_priv->dpio_lock);
5798 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5799 tmp &= ~SBI_SSCCTL_DISABLE;
5800 tmp |= SBI_SSCCTL_PATHALT;
5801 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5806 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5807 tmp &= ~SBI_SSCCTL_PATHALT;
5808 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5811 lpt_reset_fdi_mphy(dev_priv);
5812 lpt_program_fdi_mphy(dev_priv);
5816 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
5817 SBI_GEN0 : SBI_DBUFF0;
5818 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
5819 tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE;
5820 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
5822 mutex_unlock(&dev_priv->dpio_lock);
5825 /* Sequence to disable CLKOUT_DP */
5826 static void lpt_disable_clkout_dp(struct drm_device *dev)
5828 struct drm_i915_private *dev_priv = dev->dev_private;
5831 mutex_lock(&dev_priv->dpio_lock);
5833 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
5834 SBI_GEN0 : SBI_DBUFF0;
5835 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
5836 tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE;
5837 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
5839 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5840 if (!(tmp & SBI_SSCCTL_DISABLE)) {
5841 if (!(tmp & SBI_SSCCTL_PATHALT)) {
5842 tmp |= SBI_SSCCTL_PATHALT;
5843 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5846 tmp |= SBI_SSCCTL_DISABLE;
5847 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5850 mutex_unlock(&dev_priv->dpio_lock);
5853 static void lpt_init_pch_refclk(struct drm_device *dev)
5855 struct drm_mode_config *mode_config = &dev->mode_config;
5856 struct intel_encoder *encoder;
5857 bool has_vga = false;
5859 list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
5860 switch (encoder->type) {
5861 case INTEL_OUTPUT_ANALOG:
5868 lpt_enable_clkout_dp(dev, true, true);
5870 lpt_disable_clkout_dp(dev);
5874 * Initialize reference clocks when the driver loads
5876 void intel_init_pch_refclk(struct drm_device *dev)
5878 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
5879 ironlake_init_pch_refclk(dev);
5880 else if (HAS_PCH_LPT(dev))
5881 lpt_init_pch_refclk(dev);
5884 static int ironlake_get_refclk(struct drm_crtc *crtc)
5886 struct drm_device *dev = crtc->dev;
5887 struct drm_i915_private *dev_priv = dev->dev_private;
5888 struct intel_encoder *encoder;
5889 int num_connectors = 0;
5890 bool is_lvds = false;
5892 for_each_encoder_on_crtc(dev, crtc, encoder) {
5893 switch (encoder->type) {
5894 case INTEL_OUTPUT_LVDS:
5901 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
5902 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
5903 dev_priv->vbt.lvds_ssc_freq);
5904 return dev_priv->vbt.lvds_ssc_freq * 1000;
5910 static void ironlake_set_pipeconf(struct drm_crtc *crtc)
5912 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5913 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5914 int pipe = intel_crtc->pipe;
5919 switch (intel_crtc->config.pipe_bpp) {
5921 val |= PIPECONF_6BPC;
5924 val |= PIPECONF_8BPC;
5927 val |= PIPECONF_10BPC;
5930 val |= PIPECONF_12BPC;
5933 /* Case prevented by intel_choose_pipe_bpp_dither. */
5937 if (intel_crtc->config.dither)
5938 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5940 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
5941 val |= PIPECONF_INTERLACED_ILK;
5943 val |= PIPECONF_PROGRESSIVE;
5945 if (intel_crtc->config.limited_color_range)
5946 val |= PIPECONF_COLOR_RANGE_SELECT;
5948 I915_WRITE(PIPECONF(pipe), val);
5949 POSTING_READ(PIPECONF(pipe));
5953 * Set up the pipe CSC unit.
5955 * Currently only full range RGB to limited range RGB conversion
5956 * is supported, but eventually this should handle various
5957 * RGB<->YCbCr scenarios as well.
5959 static void intel_set_pipe_csc(struct drm_crtc *crtc)
5961 struct drm_device *dev = crtc->dev;
5962 struct drm_i915_private *dev_priv = dev->dev_private;
5963 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5964 int pipe = intel_crtc->pipe;
5965 uint16_t coeff = 0x7800; /* 1.0 */
5968 * TODO: Check what kind of values actually come out of the pipe
5969 * with these coeff/postoff values and adjust to get the best
5970 * accuracy. Perhaps we even need to take the bpc value into
5974 if (intel_crtc->config.limited_color_range)
5975 coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5978 * GY/GU and RY/RU should be the other way around according
5979 * to BSpec, but reality doesn't agree. Just set them up in
5980 * a way that results in the correct picture.
5982 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
5983 I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
5985 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
5986 I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
5988 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
5989 I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
5991 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
5992 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
5993 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
5995 if (INTEL_INFO(dev)->gen > 6) {
5996 uint16_t postoff = 0;
5998 if (intel_crtc->config.limited_color_range)
5999 postoff = (16 * (1 << 12) / 255) & 0x1fff;
6001 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
6002 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
6003 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
6005 I915_WRITE(PIPE_CSC_MODE(pipe), 0);
6007 uint32_t mode = CSC_MODE_YUV_TO_RGB;
6009 if (intel_crtc->config.limited_color_range)
6010 mode |= CSC_BLACK_SCREEN_OFFSET;
6012 I915_WRITE(PIPE_CSC_MODE(pipe), mode);
6016 static void haswell_set_pipeconf(struct drm_crtc *crtc)
6018 struct drm_device *dev = crtc->dev;
6019 struct drm_i915_private *dev_priv = dev->dev_private;
6020 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6021 enum pipe pipe = intel_crtc->pipe;
6022 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
6027 if (IS_HASWELL(dev) && intel_crtc->config.dither)
6028 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
6030 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
6031 val |= PIPECONF_INTERLACED_ILK;
6033 val |= PIPECONF_PROGRESSIVE;
6035 I915_WRITE(PIPECONF(cpu_transcoder), val);
6036 POSTING_READ(PIPECONF(cpu_transcoder));
6038 I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT);
6039 POSTING_READ(GAMMA_MODE(intel_crtc->pipe));
6041 if (IS_BROADWELL(dev)) {
6044 switch (intel_crtc->config.pipe_bpp) {
6046 val |= PIPEMISC_DITHER_6_BPC;
6049 val |= PIPEMISC_DITHER_8_BPC;
6052 val |= PIPEMISC_DITHER_10_BPC;
6055 val |= PIPEMISC_DITHER_12_BPC;
6058 /* Case prevented by pipe_config_set_bpp. */
6062 if (intel_crtc->config.dither)
6063 val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP;
6065 I915_WRITE(PIPEMISC(pipe), val);
6069 static bool ironlake_compute_clocks(struct drm_crtc *crtc,
6070 intel_clock_t *clock,
6071 bool *has_reduced_clock,
6072 intel_clock_t *reduced_clock)
6074 struct drm_device *dev = crtc->dev;
6075 struct drm_i915_private *dev_priv = dev->dev_private;
6076 struct intel_encoder *intel_encoder;
6078 const intel_limit_t *limit;
6079 bool ret, is_lvds = false;
6081 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
6082 switch (intel_encoder->type) {
6083 case INTEL_OUTPUT_LVDS:
6089 refclk = ironlake_get_refclk(crtc);
6092 * Returns a set of divisors for the desired target clock with the given
6093 * refclk, or FALSE. The returned values represent the clock equation:
6094 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
6096 limit = intel_limit(crtc, refclk);
6097 ret = dev_priv->display.find_dpll(limit, crtc,
6098 to_intel_crtc(crtc)->config.port_clock,
6099 refclk, NULL, clock);
6103 if (is_lvds && dev_priv->lvds_downclock_avail) {
6105 * Ensure we match the reduced clock's P to the target clock.
6106 * If the clocks don't match, we can't switch the display clock
6107 * by using the FP0/FP1. In such case we will disable the LVDS
6108 * downclock feature.
6110 *has_reduced_clock =
6111 dev_priv->display.find_dpll(limit, crtc,
6112 dev_priv->lvds_downclock,
6120 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
6123 * Account for spread spectrum to avoid
6124 * oversubscribing the link. Max center spread
6125 * is 2.5%; use 5% for safety's sake.
6127 u32 bps = target_clock * bpp * 21 / 20;
6128 return bps / (link_bw * 8) + 1;
6131 static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
6133 return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
6136 static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
6138 intel_clock_t *reduced_clock, u32 *fp2)
6140 struct drm_crtc *crtc = &intel_crtc->base;
6141 struct drm_device *dev = crtc->dev;
6142 struct drm_i915_private *dev_priv = dev->dev_private;
6143 struct intel_encoder *intel_encoder;
6145 int factor, num_connectors = 0;
6146 bool is_lvds = false, is_sdvo = false;
6148 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
6149 switch (intel_encoder->type) {
6150 case INTEL_OUTPUT_LVDS:
6153 case INTEL_OUTPUT_SDVO:
6154 case INTEL_OUTPUT_HDMI:
6162 /* Enable autotuning of the PLL clock (if permissible) */
6165 if ((intel_panel_use_ssc(dev_priv) &&
6166 dev_priv->vbt.lvds_ssc_freq == 100) ||
6167 (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
6169 } else if (intel_crtc->config.sdvo_tv_clock)
6172 if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor))
6175 if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
6181 dpll |= DPLLB_MODE_LVDS;
6183 dpll |= DPLLB_MODE_DAC_SERIAL;
6185 dpll |= (intel_crtc->config.pixel_multiplier - 1)
6186 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
6189 dpll |= DPLL_SDVO_HIGH_SPEED;
6190 if (intel_crtc->config.has_dp_encoder)
6191 dpll |= DPLL_SDVO_HIGH_SPEED;
6193 /* compute bitmask from p1 value */
6194 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
6196 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
6198 switch (intel_crtc->config.dpll.p2) {
6200 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
6203 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
6206 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
6209 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
6213 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
6214 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
6216 dpll |= PLL_REF_INPUT_DREFCLK;
6218 return dpll | DPLL_VCO_ENABLE;
6221 static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
6223 struct drm_framebuffer *fb)
6225 struct drm_device *dev = crtc->dev;
6226 struct drm_i915_private *dev_priv = dev->dev_private;
6227 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6228 int pipe = intel_crtc->pipe;
6229 int plane = intel_crtc->plane;
6230 int num_connectors = 0;
6231 intel_clock_t clock, reduced_clock;
6232 u32 dpll = 0, fp = 0, fp2 = 0;
6233 bool ok, has_reduced_clock = false;
6234 bool is_lvds = false;
6235 struct intel_encoder *encoder;
6236 struct intel_shared_dpll *pll;
6239 for_each_encoder_on_crtc(dev, crtc, encoder) {
6240 switch (encoder->type) {
6241 case INTEL_OUTPUT_LVDS:
6249 WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
6250 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
6252 ok = ironlake_compute_clocks(crtc, &clock,
6253 &has_reduced_clock, &reduced_clock);
6254 if (!ok && !intel_crtc->config.clock_set) {
6255 DRM_ERROR("Couldn't find PLL settings for mode!\n");
6258 /* Compat-code for transition, will disappear. */
6259 if (!intel_crtc->config.clock_set) {
6260 intel_crtc->config.dpll.n = clock.n;
6261 intel_crtc->config.dpll.m1 = clock.m1;
6262 intel_crtc->config.dpll.m2 = clock.m2;
6263 intel_crtc->config.dpll.p1 = clock.p1;
6264 intel_crtc->config.dpll.p2 = clock.p2;
6267 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
6268 if (intel_crtc->config.has_pch_encoder) {
6269 fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
6270 if (has_reduced_clock)
6271 fp2 = i9xx_dpll_compute_fp(&reduced_clock);
6273 dpll = ironlake_compute_dpll(intel_crtc,
6274 &fp, &reduced_clock,
6275 has_reduced_clock ? &fp2 : NULL);
6277 intel_crtc->config.dpll_hw_state.dpll = dpll;
6278 intel_crtc->config.dpll_hw_state.fp0 = fp;
6279 if (has_reduced_clock)
6280 intel_crtc->config.dpll_hw_state.fp1 = fp2;
6282 intel_crtc->config.dpll_hw_state.fp1 = fp;
6284 pll = intel_get_shared_dpll(intel_crtc);
6286 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
6291 intel_put_shared_dpll(intel_crtc);
6293 if (intel_crtc->config.has_dp_encoder)
6294 intel_dp_set_m_n(intel_crtc);
6296 if (is_lvds && has_reduced_clock && i915_powersave)
6297 intel_crtc->lowfreq_avail = true;
6299 intel_crtc->lowfreq_avail = false;
6301 intel_set_pipe_timings(intel_crtc);
6303 if (intel_crtc->config.has_pch_encoder) {
6304 intel_cpu_transcoder_set_m_n(intel_crtc,
6305 &intel_crtc->config.fdi_m_n);
6308 ironlake_set_pipeconf(crtc);
6310 /* Set up the display plane register */
6311 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
6312 POSTING_READ(DSPCNTR(plane));
6314 ret = intel_pipe_set_base(crtc, x, y, fb);
6319 static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc,
6320 struct intel_link_m_n *m_n)
6322 struct drm_device *dev = crtc->base.dev;
6323 struct drm_i915_private *dev_priv = dev->dev_private;
6324 enum pipe pipe = crtc->pipe;
6326 m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe));
6327 m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe));
6328 m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe))
6330 m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe));
6331 m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe))
6332 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
6335 static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc,
6336 enum transcoder transcoder,
6337 struct intel_link_m_n *m_n)
6339 struct drm_device *dev = crtc->base.dev;
6340 struct drm_i915_private *dev_priv = dev->dev_private;
6341 enum pipe pipe = crtc->pipe;
6343 if (INTEL_INFO(dev)->gen >= 5) {
6344 m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder));
6345 m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder));
6346 m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder))
6348 m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder));
6349 m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder))
6350 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
6352 m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe));
6353 m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe));
6354 m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe))
6356 m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe));
6357 m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe))
6358 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
6362 void intel_dp_get_m_n(struct intel_crtc *crtc,
6363 struct intel_crtc_config *pipe_config)
6365 if (crtc->config.has_pch_encoder)
6366 intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n);
6368 intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
6369 &pipe_config->dp_m_n);
6372 static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc,
6373 struct intel_crtc_config *pipe_config)
6375 intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
6376 &pipe_config->fdi_m_n);
6379 static void ironlake_get_pfit_config(struct intel_crtc *crtc,
6380 struct intel_crtc_config *pipe_config)
6382 struct drm_device *dev = crtc->base.dev;
6383 struct drm_i915_private *dev_priv = dev->dev_private;
6386 tmp = I915_READ(PF_CTL(crtc->pipe));
6388 if (tmp & PF_ENABLE) {
6389 pipe_config->pch_pfit.enabled = true;
6390 pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe));
6391 pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe));
6393 /* We currently do not free assignements of panel fitters on
6394 * ivb/hsw (since we don't use the higher upscaling modes which
6395 * differentiates them) so just WARN about this case for now. */
6397 WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) !=
6398 PF_PIPE_SEL_IVB(crtc->pipe));
6403 static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
6404 struct intel_crtc_config *pipe_config)
6406 struct drm_device *dev = crtc->base.dev;
6407 struct drm_i915_private *dev_priv = dev->dev_private;
6410 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
6411 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
6413 tmp = I915_READ(PIPECONF(crtc->pipe));
6414 if (!(tmp & PIPECONF_ENABLE))
6417 switch (tmp & PIPECONF_BPC_MASK) {
6419 pipe_config->pipe_bpp = 18;
6422 pipe_config->pipe_bpp = 24;
6424 case PIPECONF_10BPC:
6425 pipe_config->pipe_bpp = 30;
6427 case PIPECONF_12BPC:
6428 pipe_config->pipe_bpp = 36;
6434 if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
6435 struct intel_shared_dpll *pll;
6437 pipe_config->has_pch_encoder = true;
6439 tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
6440 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
6441 FDI_DP_PORT_WIDTH_SHIFT) + 1;
6443 ironlake_get_fdi_m_n_config(crtc, pipe_config);
6445 if (HAS_PCH_IBX(dev_priv->dev)) {
6446 pipe_config->shared_dpll =
6447 (enum intel_dpll_id) crtc->pipe;
6449 tmp = I915_READ(PCH_DPLL_SEL);
6450 if (tmp & TRANS_DPLLB_SEL(crtc->pipe))
6451 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B;
6453 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A;
6456 pll = &dev_priv->shared_dplls[pipe_config->shared_dpll];
6458 WARN_ON(!pll->get_hw_state(dev_priv, pll,
6459 &pipe_config->dpll_hw_state));
6461 tmp = pipe_config->dpll_hw_state.dpll;
6462 pipe_config->pixel_multiplier =
6463 ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK)
6464 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1;
6466 ironlake_pch_clock_get(crtc, pipe_config);
6468 pipe_config->pixel_multiplier = 1;
6471 intel_get_pipe_timings(crtc, pipe_config);
6473 ironlake_get_pfit_config(crtc, pipe_config);
6478 static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
6480 struct drm_device *dev = dev_priv->dev;
6481 struct intel_ddi_plls *plls = &dev_priv->ddi_plls;
6482 struct intel_crtc *crtc;
6483 unsigned long irqflags;
6486 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
6487 WARN(crtc->base.enabled, "CRTC for pipe %c enabled\n",
6488 pipe_name(crtc->pipe));
6490 WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n");
6491 WARN(plls->spll_refcount, "SPLL enabled\n");
6492 WARN(plls->wrpll1_refcount, "WRPLL1 enabled\n");
6493 WARN(plls->wrpll2_refcount, "WRPLL2 enabled\n");
6494 WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n");
6495 WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE,
6496 "CPU PWM1 enabled\n");
6497 WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE,
6498 "CPU PWM2 enabled\n");
6499 WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE,
6500 "PCH PWM1 enabled\n");
6501 WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
6502 "Utility pin enabled\n");
6503 WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n");
6505 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
6506 val = I915_READ(DEIMR);
6507 WARN((val & ~DE_PCH_EVENT_IVB) != val,
6508 "Unexpected DEIMR bits enabled: 0x%x\n", val);
6509 val = I915_READ(SDEIMR);
6510 WARN((val | SDE_HOTPLUG_MASK_CPT) != 0xffffffff,
6511 "Unexpected SDEIMR bits enabled: 0x%x\n", val);
6512 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
6516 * This function implements pieces of two sequences from BSpec:
6517 * - Sequence for display software to disable LCPLL
6518 * - Sequence for display software to allow package C8+
6519 * The steps implemented here are just the steps that actually touch the LCPLL
6520 * register. Callers should take care of disabling all the display engine
6521 * functions, doing the mode unset, fixing interrupts, etc.
6523 static void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
6524 bool switch_to_fclk, bool allow_power_down)
6528 assert_can_disable_lcpll(dev_priv);
6530 val = I915_READ(LCPLL_CTL);
6532 if (switch_to_fclk) {
6533 val |= LCPLL_CD_SOURCE_FCLK;
6534 I915_WRITE(LCPLL_CTL, val);
6536 if (wait_for_atomic_us(I915_READ(LCPLL_CTL) &
6537 LCPLL_CD_SOURCE_FCLK_DONE, 1))
6538 DRM_ERROR("Switching to FCLK failed\n");
6540 val = I915_READ(LCPLL_CTL);
6543 val |= LCPLL_PLL_DISABLE;
6544 I915_WRITE(LCPLL_CTL, val);
6545 POSTING_READ(LCPLL_CTL);
6547 if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1))
6548 DRM_ERROR("LCPLL still locked\n");
6550 val = I915_READ(D_COMP);
6551 val |= D_COMP_COMP_DISABLE;
6552 mutex_lock(&dev_priv->rps.hw_lock);
6553 if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, val))
6554 DRM_ERROR("Failed to disable D_COMP\n");
6555 mutex_unlock(&dev_priv->rps.hw_lock);
6556 POSTING_READ(D_COMP);
6559 if (wait_for((I915_READ(D_COMP) & D_COMP_RCOMP_IN_PROGRESS) == 0, 1))
6560 DRM_ERROR("D_COMP RCOMP still in progress\n");
6562 if (allow_power_down) {
6563 val = I915_READ(LCPLL_CTL);
6564 val |= LCPLL_POWER_DOWN_ALLOW;
6565 I915_WRITE(LCPLL_CTL, val);
6566 POSTING_READ(LCPLL_CTL);
6571 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
6574 static void hsw_restore_lcpll(struct drm_i915_private *dev_priv)
6578 val = I915_READ(LCPLL_CTL);
6580 if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK |
6581 LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK)
6584 /* Make sure we're not on PC8 state before disabling PC8, otherwise
6585 * we'll hang the machine! */
6586 gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);
6588 if (val & LCPLL_POWER_DOWN_ALLOW) {
6589 val &= ~LCPLL_POWER_DOWN_ALLOW;
6590 I915_WRITE(LCPLL_CTL, val);
6591 POSTING_READ(LCPLL_CTL);
6594 val = I915_READ(D_COMP);
6595 val |= D_COMP_COMP_FORCE;
6596 val &= ~D_COMP_COMP_DISABLE;
6597 mutex_lock(&dev_priv->rps.hw_lock);
6598 if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, val))
6599 DRM_ERROR("Failed to enable D_COMP\n");
6600 mutex_unlock(&dev_priv->rps.hw_lock);
6601 POSTING_READ(D_COMP);
6603 val = I915_READ(LCPLL_CTL);
6604 val &= ~LCPLL_PLL_DISABLE;
6605 I915_WRITE(LCPLL_CTL, val);
6607 if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5))
6608 DRM_ERROR("LCPLL not locked yet\n");
6610 if (val & LCPLL_CD_SOURCE_FCLK) {
6611 val = I915_READ(LCPLL_CTL);
6612 val &= ~LCPLL_CD_SOURCE_FCLK;
6613 I915_WRITE(LCPLL_CTL, val);
6615 if (wait_for_atomic_us((I915_READ(LCPLL_CTL) &
6616 LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
6617 DRM_ERROR("Switching back to LCPLL failed\n");
6620 gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
6623 void hsw_enable_pc8_work(struct work_struct *__work)
6625 struct drm_i915_private *dev_priv =
6626 container_of(to_delayed_work(__work), struct drm_i915_private,
6628 struct drm_device *dev = dev_priv->dev;
6631 if (dev_priv->pc8.enabled)
6634 DRM_DEBUG_KMS("Enabling package C8+\n");
6636 dev_priv->pc8.enabled = true;
6638 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
6639 val = I915_READ(SOUTH_DSPCLK_GATE_D);
6640 val &= ~PCH_LP_PARTITION_LEVEL_DISABLE;
6641 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
6644 lpt_disable_clkout_dp(dev);
6645 hsw_pc8_disable_interrupts(dev);
6646 hsw_disable_lcpll(dev_priv, true, true);
6649 static void __hsw_enable_package_c8(struct drm_i915_private *dev_priv)
6651 WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
6652 WARN(dev_priv->pc8.disable_count < 1,
6653 "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
6655 dev_priv->pc8.disable_count--;
6656 if (dev_priv->pc8.disable_count != 0)
6659 schedule_delayed_work(&dev_priv->pc8.enable_work,
6660 msecs_to_jiffies(i915_pc8_timeout));
6663 static void __hsw_disable_package_c8(struct drm_i915_private *dev_priv)
6665 struct drm_device *dev = dev_priv->dev;
6668 WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
6669 WARN(dev_priv->pc8.disable_count < 0,
6670 "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
6672 dev_priv->pc8.disable_count++;
6673 if (dev_priv->pc8.disable_count != 1)
6676 cancel_delayed_work_sync(&dev_priv->pc8.enable_work);
6677 if (!dev_priv->pc8.enabled)
6680 DRM_DEBUG_KMS("Disabling package C8+\n");
6682 hsw_restore_lcpll(dev_priv);
6683 hsw_pc8_restore_interrupts(dev);
6684 lpt_init_pch_refclk(dev);
6686 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
6687 val = I915_READ(SOUTH_DSPCLK_GATE_D);
6688 val |= PCH_LP_PARTITION_LEVEL_DISABLE;
6689 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
6692 intel_prepare_ddi(dev);
6693 i915_gem_init_swizzling(dev);
6694 mutex_lock(&dev_priv->rps.hw_lock);
6695 gen6_update_ring_freq(dev);
6696 mutex_unlock(&dev_priv->rps.hw_lock);
6697 dev_priv->pc8.enabled = false;
6700 void hsw_enable_package_c8(struct drm_i915_private *dev_priv)
6702 if (!HAS_PC8(dev_priv->dev))
6705 mutex_lock(&dev_priv->pc8.lock);
6706 __hsw_enable_package_c8(dev_priv);
6707 mutex_unlock(&dev_priv->pc8.lock);
6710 void hsw_disable_package_c8(struct drm_i915_private *dev_priv)
6712 if (!HAS_PC8(dev_priv->dev))
6715 mutex_lock(&dev_priv->pc8.lock);
6716 __hsw_disable_package_c8(dev_priv);
6717 mutex_unlock(&dev_priv->pc8.lock);
6720 static bool hsw_can_enable_package_c8(struct drm_i915_private *dev_priv)
6722 struct drm_device *dev = dev_priv->dev;
6723 struct intel_crtc *crtc;
6726 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
6727 if (crtc->base.enabled)
6730 /* This case is still possible since we have the i915.disable_power_well
6731 * parameter and also the KVMr or something else might be requesting the
6733 val = I915_READ(HSW_PWR_WELL_DRIVER);
6735 DRM_DEBUG_KMS("Not enabling PC8: power well on\n");
6742 /* Since we're called from modeset_global_resources there's no way to
6743 * symmetrically increase and decrease the refcount, so we use
6744 * dev_priv->pc8.requirements_met to track whether we already have the refcount
6747 static void hsw_update_package_c8(struct drm_device *dev)
6749 struct drm_i915_private *dev_priv = dev->dev_private;
6752 if (!HAS_PC8(dev_priv->dev))
6755 if (!i915_enable_pc8)
6758 mutex_lock(&dev_priv->pc8.lock);
6760 allow = hsw_can_enable_package_c8(dev_priv);
6762 if (allow == dev_priv->pc8.requirements_met)
6765 dev_priv->pc8.requirements_met = allow;
6768 __hsw_enable_package_c8(dev_priv);
6770 __hsw_disable_package_c8(dev_priv);
6773 mutex_unlock(&dev_priv->pc8.lock);
6776 static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv)
6778 if (!HAS_PC8(dev_priv->dev))
6781 mutex_lock(&dev_priv->pc8.lock);
6782 if (!dev_priv->pc8.gpu_idle) {
6783 dev_priv->pc8.gpu_idle = true;
6784 __hsw_enable_package_c8(dev_priv);
6786 mutex_unlock(&dev_priv->pc8.lock);
6789 static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv)
6791 if (!HAS_PC8(dev_priv->dev))
6794 mutex_lock(&dev_priv->pc8.lock);
6795 if (dev_priv->pc8.gpu_idle) {
6796 dev_priv->pc8.gpu_idle = false;
6797 __hsw_disable_package_c8(dev_priv);
6799 mutex_unlock(&dev_priv->pc8.lock);
6802 #define for_each_power_domain(domain, mask) \
6803 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
6804 if ((1 << (domain)) & (mask))
6806 static unsigned long get_pipe_power_domains(struct drm_device *dev,
6807 enum pipe pipe, bool pfit_enabled)
6810 enum transcoder transcoder;
6812 transcoder = intel_pipe_to_cpu_transcoder(dev->dev_private, pipe);
6814 mask = BIT(POWER_DOMAIN_PIPE(pipe));
6815 mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder));
6817 mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe));
6822 void intel_display_set_init_power(struct drm_device *dev, bool enable)
6824 struct drm_i915_private *dev_priv = dev->dev_private;
6826 if (dev_priv->power_domains.init_power_on == enable)
6830 intel_display_power_get(dev, POWER_DOMAIN_INIT);
6832 intel_display_power_put(dev, POWER_DOMAIN_INIT);
6834 dev_priv->power_domains.init_power_on = enable;
6837 static void modeset_update_power_wells(struct drm_device *dev)
6839 unsigned long pipe_domains[I915_MAX_PIPES] = { 0, };
6840 struct intel_crtc *crtc;
6843 * First get all needed power domains, then put all unneeded, to avoid
6844 * any unnecessary toggling of the power wells.
6846 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
6847 enum intel_display_power_domain domain;
6849 if (!crtc->base.enabled)
6852 pipe_domains[crtc->pipe] = get_pipe_power_domains(dev,
6854 crtc->config.pch_pfit.enabled);
6856 for_each_power_domain(domain, pipe_domains[crtc->pipe])
6857 intel_display_power_get(dev, domain);
6860 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
6861 enum intel_display_power_domain domain;
6863 for_each_power_domain(domain, crtc->enabled_power_domains)
6864 intel_display_power_put(dev, domain);
6866 crtc->enabled_power_domains = pipe_domains[crtc->pipe];
6869 intel_display_set_init_power(dev, false);
6872 static void haswell_modeset_global_resources(struct drm_device *dev)
6874 modeset_update_power_wells(dev);
6875 hsw_update_package_c8(dev);
6878 static int haswell_crtc_mode_set(struct drm_crtc *crtc,
6880 struct drm_framebuffer *fb)
6882 struct drm_device *dev = crtc->dev;
6883 struct drm_i915_private *dev_priv = dev->dev_private;
6884 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6885 int plane = intel_crtc->plane;
6888 if (!intel_ddi_pll_mode_set(crtc))
6891 if (intel_crtc->config.has_dp_encoder)
6892 intel_dp_set_m_n(intel_crtc);
6894 intel_crtc->lowfreq_avail = false;
6896 intel_set_pipe_timings(intel_crtc);
6898 if (intel_crtc->config.has_pch_encoder) {
6899 intel_cpu_transcoder_set_m_n(intel_crtc,
6900 &intel_crtc->config.fdi_m_n);
6903 haswell_set_pipeconf(crtc);
6905 intel_set_pipe_csc(crtc);
6907 /* Set up the display plane register */
6908 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
6909 POSTING_READ(DSPCNTR(plane));
6911 ret = intel_pipe_set_base(crtc, x, y, fb);
6916 static bool haswell_get_pipe_config(struct intel_crtc *crtc,
6917 struct intel_crtc_config *pipe_config)
6919 struct drm_device *dev = crtc->base.dev;
6920 struct drm_i915_private *dev_priv = dev->dev_private;
6921 enum intel_display_power_domain pfit_domain;
6924 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
6925 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
6927 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
6928 if (tmp & TRANS_DDI_FUNC_ENABLE) {
6929 enum pipe trans_edp_pipe;
6930 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
6932 WARN(1, "unknown pipe linked to edp transcoder\n");
6933 case TRANS_DDI_EDP_INPUT_A_ONOFF:
6934 case TRANS_DDI_EDP_INPUT_A_ON:
6935 trans_edp_pipe = PIPE_A;
6937 case TRANS_DDI_EDP_INPUT_B_ONOFF:
6938 trans_edp_pipe = PIPE_B;
6940 case TRANS_DDI_EDP_INPUT_C_ONOFF:
6941 trans_edp_pipe = PIPE_C;
6945 if (trans_edp_pipe == crtc->pipe)
6946 pipe_config->cpu_transcoder = TRANSCODER_EDP;
6949 if (!intel_display_power_enabled(dev,
6950 POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder)))
6953 tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder));
6954 if (!(tmp & PIPECONF_ENABLE))
6958 * Haswell has only FDI/PCH transcoder A. It is which is connected to
6959 * DDI E. So just check whether this pipe is wired to DDI E and whether
6960 * the PCH transcoder is on.
6962 tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
6963 if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
6964 I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
6965 pipe_config->has_pch_encoder = true;
6967 tmp = I915_READ(FDI_RX_CTL(PIPE_A));
6968 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
6969 FDI_DP_PORT_WIDTH_SHIFT) + 1;
6971 ironlake_get_fdi_m_n_config(crtc, pipe_config);
6974 intel_get_pipe_timings(crtc, pipe_config);
6976 pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
6977 if (intel_display_power_enabled(dev, pfit_domain))
6978 ironlake_get_pfit_config(crtc, pipe_config);
6980 pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) &&
6981 (I915_READ(IPS_CTL) & IPS_ENABLE);
6983 pipe_config->pixel_multiplier = 1;
6988 static int intel_crtc_mode_set(struct drm_crtc *crtc,
6990 struct drm_framebuffer *fb)
6992 struct drm_device *dev = crtc->dev;
6993 struct drm_i915_private *dev_priv = dev->dev_private;
6994 struct intel_encoder *encoder;
6995 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6996 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
6997 int pipe = intel_crtc->pipe;
7000 drm_vblank_pre_modeset(dev, pipe);
7002 ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
7004 drm_vblank_post_modeset(dev, pipe);
7009 for_each_encoder_on_crtc(dev, crtc, encoder) {
7010 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
7011 encoder->base.base.id,
7012 drm_get_encoder_name(&encoder->base),
7013 mode->base.id, mode->name);
7014 encoder->mode_set(encoder);
7023 } hdmi_audio_clock[] = {
7024 { DIV_ROUND_UP(25200 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_25175 },
7025 { 25200, AUD_CONFIG_PIXEL_CLOCK_HDMI_25200 }, /* default per bspec */
7026 { 27000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27000 },
7027 { 27000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27027 },
7028 { 54000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54000 },
7029 { 54000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54054 },
7030 { DIV_ROUND_UP(74250 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_74176 },
7031 { 74250, AUD_CONFIG_PIXEL_CLOCK_HDMI_74250 },
7032 { DIV_ROUND_UP(148500 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_148352 },
7033 { 148500, AUD_CONFIG_PIXEL_CLOCK_HDMI_148500 },
7036 /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */
7037 static u32 audio_config_hdmi_pixel_clock(struct drm_display_mode *mode)
7041 for (i = 0; i < ARRAY_SIZE(hdmi_audio_clock); i++) {
7042 if (mode->clock == hdmi_audio_clock[i].clock)
7046 if (i == ARRAY_SIZE(hdmi_audio_clock)) {
7047 DRM_DEBUG_KMS("HDMI audio pixel clock setting for %d not found, falling back to defaults\n", mode->clock);
7051 DRM_DEBUG_KMS("Configuring HDMI audio for pixel clock %d (0x%08x)\n",
7052 hdmi_audio_clock[i].clock,
7053 hdmi_audio_clock[i].config);
7055 return hdmi_audio_clock[i].config;
7058 static bool intel_eld_uptodate(struct drm_connector *connector,
7059 int reg_eldv, uint32_t bits_eldv,
7060 int reg_elda, uint32_t bits_elda,
7063 struct drm_i915_private *dev_priv = connector->dev->dev_private;
7064 uint8_t *eld = connector->eld;
7067 i = I915_READ(reg_eldv);
7076 i = I915_READ(reg_elda);
7078 I915_WRITE(reg_elda, i);
7080 for (i = 0; i < eld[2]; i++)
7081 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
7087 static void g4x_write_eld(struct drm_connector *connector,
7088 struct drm_crtc *crtc,
7089 struct drm_display_mode *mode)
7091 struct drm_i915_private *dev_priv = connector->dev->dev_private;
7092 uint8_t *eld = connector->eld;
7097 i = I915_READ(G4X_AUD_VID_DID);
7099 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
7100 eldv = G4X_ELDV_DEVCL_DEVBLC;
7102 eldv = G4X_ELDV_DEVCTG;
7104 if (intel_eld_uptodate(connector,
7105 G4X_AUD_CNTL_ST, eldv,
7106 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
7107 G4X_HDMIW_HDMIEDID))
7110 i = I915_READ(G4X_AUD_CNTL_ST);
7111 i &= ~(eldv | G4X_ELD_ADDR);
7112 len = (i >> 9) & 0x1f; /* ELD buffer size */
7113 I915_WRITE(G4X_AUD_CNTL_ST, i);
7118 len = min_t(uint8_t, eld[2], len);
7119 DRM_DEBUG_DRIVER("ELD size %d\n", len);
7120 for (i = 0; i < len; i++)
7121 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
7123 i = I915_READ(G4X_AUD_CNTL_ST);
7125 I915_WRITE(G4X_AUD_CNTL_ST, i);
7128 static void haswell_write_eld(struct drm_connector *connector,
7129 struct drm_crtc *crtc,
7130 struct drm_display_mode *mode)
7132 struct drm_i915_private *dev_priv = connector->dev->dev_private;
7133 uint8_t *eld = connector->eld;
7134 struct drm_device *dev = crtc->dev;
7135 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7139 int pipe = to_intel_crtc(crtc)->pipe;
7142 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
7143 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
7144 int aud_config = HSW_AUD_CFG(pipe);
7145 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
7148 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
7150 /* Audio output enable */
7151 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
7152 tmp = I915_READ(aud_cntrl_st2);
7153 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
7154 I915_WRITE(aud_cntrl_st2, tmp);
7156 /* Wait for 1 vertical blank */
7157 intel_wait_for_vblank(dev, pipe);
7159 /* Set ELD valid state */
7160 tmp = I915_READ(aud_cntrl_st2);
7161 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp);
7162 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
7163 I915_WRITE(aud_cntrl_st2, tmp);
7164 tmp = I915_READ(aud_cntrl_st2);
7165 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp);
7167 /* Enable HDMI mode */
7168 tmp = I915_READ(aud_config);
7169 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp);
7170 /* clear N_programing_enable and N_value_index */
7171 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
7172 I915_WRITE(aud_config, tmp);
7174 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
7176 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
7177 intel_crtc->eld_vld = true;
7179 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
7180 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
7181 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
7182 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
7184 I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode));
7187 if (intel_eld_uptodate(connector,
7188 aud_cntrl_st2, eldv,
7189 aud_cntl_st, IBX_ELD_ADDRESS,
7193 i = I915_READ(aud_cntrl_st2);
7195 I915_WRITE(aud_cntrl_st2, i);
7200 i = I915_READ(aud_cntl_st);
7201 i &= ~IBX_ELD_ADDRESS;
7202 I915_WRITE(aud_cntl_st, i);
7203 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
7204 DRM_DEBUG_DRIVER("port num:%d\n", i);
7206 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
7207 DRM_DEBUG_DRIVER("ELD size %d\n", len);
7208 for (i = 0; i < len; i++)
7209 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
7211 i = I915_READ(aud_cntrl_st2);
7213 I915_WRITE(aud_cntrl_st2, i);
7217 static void ironlake_write_eld(struct drm_connector *connector,
7218 struct drm_crtc *crtc,
7219 struct drm_display_mode *mode)
7221 struct drm_i915_private *dev_priv = connector->dev->dev_private;
7222 uint8_t *eld = connector->eld;
7230 int pipe = to_intel_crtc(crtc)->pipe;
7232 if (HAS_PCH_IBX(connector->dev)) {
7233 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
7234 aud_config = IBX_AUD_CFG(pipe);
7235 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
7236 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
7237 } else if (IS_VALLEYVIEW(connector->dev)) {
7238 hdmiw_hdmiedid = VLV_HDMIW_HDMIEDID(pipe);
7239 aud_config = VLV_AUD_CFG(pipe);
7240 aud_cntl_st = VLV_AUD_CNTL_ST(pipe);
7241 aud_cntrl_st2 = VLV_AUD_CNTL_ST2;
7243 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
7244 aud_config = CPT_AUD_CFG(pipe);
7245 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
7246 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
7249 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
7251 if (IS_VALLEYVIEW(connector->dev)) {
7252 struct intel_encoder *intel_encoder;
7253 struct intel_digital_port *intel_dig_port;
7255 intel_encoder = intel_attached_encoder(connector);
7256 intel_dig_port = enc_to_dig_port(&intel_encoder->base);
7257 i = intel_dig_port->port;
7259 i = I915_READ(aud_cntl_st);
7260 i = (i >> 29) & DIP_PORT_SEL_MASK;
7261 /* DIP_Port_Select, 0x1 = PortB */
7265 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
7266 /* operate blindly on all ports */
7267 eldv = IBX_ELD_VALIDB;
7268 eldv |= IBX_ELD_VALIDB << 4;
7269 eldv |= IBX_ELD_VALIDB << 8;
7271 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i));
7272 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
7275 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
7276 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
7277 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
7278 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
7280 I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode));
7283 if (intel_eld_uptodate(connector,
7284 aud_cntrl_st2, eldv,
7285 aud_cntl_st, IBX_ELD_ADDRESS,
7289 i = I915_READ(aud_cntrl_st2);
7291 I915_WRITE(aud_cntrl_st2, i);
7296 i = I915_READ(aud_cntl_st);
7297 i &= ~IBX_ELD_ADDRESS;
7298 I915_WRITE(aud_cntl_st, i);
7300 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
7301 DRM_DEBUG_DRIVER("ELD size %d\n", len);
7302 for (i = 0; i < len; i++)
7303 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
7305 i = I915_READ(aud_cntrl_st2);
7307 I915_WRITE(aud_cntrl_st2, i);
7310 void intel_write_eld(struct drm_encoder *encoder,
7311 struct drm_display_mode *mode)
7313 struct drm_crtc *crtc = encoder->crtc;
7314 struct drm_connector *connector;
7315 struct drm_device *dev = encoder->dev;
7316 struct drm_i915_private *dev_priv = dev->dev_private;
7318 connector = drm_select_eld(encoder, mode);
7322 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7324 drm_get_connector_name(connector),
7325 connector->encoder->base.id,
7326 drm_get_encoder_name(connector->encoder));
7328 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
7330 if (dev_priv->display.write_eld)
7331 dev_priv->display.write_eld(connector, crtc, mode);
7334 static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
7336 struct drm_device *dev = crtc->dev;
7337 struct drm_i915_private *dev_priv = dev->dev_private;
7338 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7339 bool visible = base != 0;
7342 if (intel_crtc->cursor_visible == visible)
7345 cntl = I915_READ(_CURACNTR);
7347 /* On these chipsets we can only modify the base whilst
7348 * the cursor is disabled.
7350 I915_WRITE(_CURABASE, base);
7352 cntl &= ~(CURSOR_FORMAT_MASK);
7353 /* XXX width must be 64, stride 256 => 0x00 << 28 */
7354 cntl |= CURSOR_ENABLE |
7355 CURSOR_GAMMA_ENABLE |
7358 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
7359 I915_WRITE(_CURACNTR, cntl);
7361 intel_crtc->cursor_visible = visible;
7364 static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
7366 struct drm_device *dev = crtc->dev;
7367 struct drm_i915_private *dev_priv = dev->dev_private;
7368 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7369 int pipe = intel_crtc->pipe;
7370 bool visible = base != 0;
7372 if (intel_crtc->cursor_visible != visible) {
7373 uint32_t cntl = I915_READ(CURCNTR(pipe));
7375 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
7376 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
7377 cntl |= pipe << 28; /* Connect to correct pipe */
7379 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
7380 cntl |= CURSOR_MODE_DISABLE;
7382 I915_WRITE(CURCNTR(pipe), cntl);
7384 intel_crtc->cursor_visible = visible;
7386 /* and commit changes on next vblank */
7387 POSTING_READ(CURCNTR(pipe));
7388 I915_WRITE(CURBASE(pipe), base);
7389 POSTING_READ(CURBASE(pipe));
7392 static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
7394 struct drm_device *dev = crtc->dev;
7395 struct drm_i915_private *dev_priv = dev->dev_private;
7396 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7397 int pipe = intel_crtc->pipe;
7398 bool visible = base != 0;
7400 if (intel_crtc->cursor_visible != visible) {
7401 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
7403 cntl &= ~CURSOR_MODE;
7404 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
7406 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
7407 cntl |= CURSOR_MODE_DISABLE;
7409 if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
7410 cntl |= CURSOR_PIPE_CSC_ENABLE;
7411 cntl &= ~CURSOR_TRICKLE_FEED_DISABLE;
7413 I915_WRITE(CURCNTR_IVB(pipe), cntl);
7415 intel_crtc->cursor_visible = visible;
7417 /* and commit changes on next vblank */
7418 POSTING_READ(CURCNTR_IVB(pipe));
7419 I915_WRITE(CURBASE_IVB(pipe), base);
7420 POSTING_READ(CURBASE_IVB(pipe));
7423 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
7424 static void intel_crtc_update_cursor(struct drm_crtc *crtc,
7427 struct drm_device *dev = crtc->dev;
7428 struct drm_i915_private *dev_priv = dev->dev_private;
7429 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7430 int pipe = intel_crtc->pipe;
7431 int x = intel_crtc->cursor_x;
7432 int y = intel_crtc->cursor_y;
7433 u32 base = 0, pos = 0;
7437 base = intel_crtc->cursor_addr;
7439 if (x >= intel_crtc->config.pipe_src_w)
7442 if (y >= intel_crtc->config.pipe_src_h)
7446 if (x + intel_crtc->cursor_width <= 0)
7449 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
7452 pos |= x << CURSOR_X_SHIFT;
7455 if (y + intel_crtc->cursor_height <= 0)
7458 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
7461 pos |= y << CURSOR_Y_SHIFT;
7463 visible = base != 0;
7464 if (!visible && !intel_crtc->cursor_visible)
7467 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev) || IS_BROADWELL(dev)) {
7468 I915_WRITE(CURPOS_IVB(pipe), pos);
7469 ivb_update_cursor(crtc, base);
7471 I915_WRITE(CURPOS(pipe), pos);
7472 if (IS_845G(dev) || IS_I865G(dev))
7473 i845_update_cursor(crtc, base);
7475 i9xx_update_cursor(crtc, base);
7479 static int intel_crtc_cursor_set(struct drm_crtc *crtc,
7480 struct drm_file *file,
7482 uint32_t width, uint32_t height)
7484 struct drm_device *dev = crtc->dev;
7485 struct drm_i915_private *dev_priv = dev->dev_private;
7486 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7487 struct drm_i915_gem_object *obj;
7491 /* if we want to turn off the cursor ignore width and height */
7493 DRM_DEBUG_KMS("cursor off\n");
7496 mutex_lock(&dev->struct_mutex);
7500 /* Currently we only support 64x64 cursors */
7501 if (width != 64 || height != 64) {
7502 DRM_ERROR("we currently only support 64x64 cursors\n");
7506 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
7507 if (&obj->base == NULL)
7510 if (obj->base.size < width * height * 4) {
7511 DRM_ERROR("buffer is to small\n");
7516 /* we only need to pin inside GTT if cursor is non-phy */
7517 mutex_lock(&dev->struct_mutex);
7518 if (!dev_priv->info->cursor_needs_physical) {
7521 if (obj->tiling_mode) {
7522 DRM_ERROR("cursor cannot be tiled\n");
7527 /* Note that the w/a also requires 2 PTE of padding following
7528 * the bo. We currently fill all unused PTE with the shadow
7529 * page and so we should always have valid PTE following the
7530 * cursor preventing the VT-d warning.
7533 if (need_vtd_wa(dev))
7534 alignment = 64*1024;
7536 ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
7538 DRM_ERROR("failed to move cursor bo into the GTT\n");
7542 ret = i915_gem_object_put_fence(obj);
7544 DRM_ERROR("failed to release fence for cursor");
7548 addr = i915_gem_obj_ggtt_offset(obj);
7550 int align = IS_I830(dev) ? 16 * 1024 : 256;
7551 ret = i915_gem_attach_phys_object(dev, obj,
7552 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
7555 DRM_ERROR("failed to attach phys object\n");
7558 addr = obj->phys_obj->handle->busaddr;
7562 I915_WRITE(CURSIZE, (height << 12) | width);
7565 if (intel_crtc->cursor_bo) {
7566 if (dev_priv->info->cursor_needs_physical) {
7567 if (intel_crtc->cursor_bo != obj)
7568 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
7570 i915_gem_object_unpin_from_display_plane(intel_crtc->cursor_bo);
7571 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
7574 mutex_unlock(&dev->struct_mutex);
7576 intel_crtc->cursor_addr = addr;
7577 intel_crtc->cursor_bo = obj;
7578 intel_crtc->cursor_width = width;
7579 intel_crtc->cursor_height = height;
7581 if (intel_crtc->active)
7582 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
7586 i915_gem_object_unpin_from_display_plane(obj);
7588 mutex_unlock(&dev->struct_mutex);
7590 drm_gem_object_unreference_unlocked(&obj->base);
7594 static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
7596 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7598 intel_crtc->cursor_x = clamp_t(int, x, SHRT_MIN, SHRT_MAX);
7599 intel_crtc->cursor_y = clamp_t(int, y, SHRT_MIN, SHRT_MAX);
7601 if (intel_crtc->active)
7602 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
7607 static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
7608 u16 *blue, uint32_t start, uint32_t size)
7610 int end = (start + size > 256) ? 256 : start + size, i;
7611 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7613 for (i = start; i < end; i++) {
7614 intel_crtc->lut_r[i] = red[i] >> 8;
7615 intel_crtc->lut_g[i] = green[i] >> 8;
7616 intel_crtc->lut_b[i] = blue[i] >> 8;
7619 intel_crtc_load_lut(crtc);
7622 /* VESA 640x480x72Hz mode to set on the pipe */
7623 static struct drm_display_mode load_detect_mode = {
7624 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
7625 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
7628 static struct drm_framebuffer *
7629 intel_framebuffer_create(struct drm_device *dev,
7630 struct drm_mode_fb_cmd2 *mode_cmd,
7631 struct drm_i915_gem_object *obj)
7633 struct intel_framebuffer *intel_fb;
7636 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
7638 drm_gem_object_unreference_unlocked(&obj->base);
7639 return ERR_PTR(-ENOMEM);
7642 ret = i915_mutex_lock_interruptible(dev);
7646 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
7647 mutex_unlock(&dev->struct_mutex);
7651 return &intel_fb->base;
7653 drm_gem_object_unreference_unlocked(&obj->base);
7656 return ERR_PTR(ret);
7660 intel_framebuffer_pitch_for_width(int width, int bpp)
7662 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
7663 return ALIGN(pitch, 64);
7667 intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
7669 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
7670 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
7673 static struct drm_framebuffer *
7674 intel_framebuffer_create_for_mode(struct drm_device *dev,
7675 struct drm_display_mode *mode,
7678 struct drm_i915_gem_object *obj;
7679 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
7681 obj = i915_gem_alloc_object(dev,
7682 intel_framebuffer_size_for_mode(mode, bpp));
7684 return ERR_PTR(-ENOMEM);
7686 mode_cmd.width = mode->hdisplay;
7687 mode_cmd.height = mode->vdisplay;
7688 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
7690 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
7692 return intel_framebuffer_create(dev, &mode_cmd, obj);
7695 static struct drm_framebuffer *
7696 mode_fits_in_fbdev(struct drm_device *dev,
7697 struct drm_display_mode *mode)
7699 #ifdef CONFIG_DRM_I915_FBDEV
7700 struct drm_i915_private *dev_priv = dev->dev_private;
7701 struct drm_i915_gem_object *obj;
7702 struct drm_framebuffer *fb;
7704 if (dev_priv->fbdev == NULL)
7707 obj = dev_priv->fbdev->ifb.obj;
7711 fb = &dev_priv->fbdev->ifb.base;
7712 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
7713 fb->bits_per_pixel))
7716 if (obj->base.size < mode->vdisplay * fb->pitches[0])
7725 bool intel_get_load_detect_pipe(struct drm_connector *connector,
7726 struct drm_display_mode *mode,
7727 struct intel_load_detect_pipe *old)
7729 struct intel_crtc *intel_crtc;
7730 struct intel_encoder *intel_encoder =
7731 intel_attached_encoder(connector);
7732 struct drm_crtc *possible_crtc;
7733 struct drm_encoder *encoder = &intel_encoder->base;
7734 struct drm_crtc *crtc = NULL;
7735 struct drm_device *dev = encoder->dev;
7736 struct drm_framebuffer *fb;
7739 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7740 connector->base.id, drm_get_connector_name(connector),
7741 encoder->base.id, drm_get_encoder_name(encoder));
7744 * Algorithm gets a little messy:
7746 * - if the connector already has an assigned crtc, use it (but make
7747 * sure it's on first)
7749 * - try to find the first unused crtc that can drive this connector,
7750 * and use that if we find one
7753 /* See if we already have a CRTC for this connector */
7754 if (encoder->crtc) {
7755 crtc = encoder->crtc;
7757 mutex_lock(&crtc->mutex);
7759 old->dpms_mode = connector->dpms;
7760 old->load_detect_temp = false;
7762 /* Make sure the crtc and connector are running */
7763 if (connector->dpms != DRM_MODE_DPMS_ON)
7764 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
7769 /* Find an unused one (if possible) */
7770 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
7772 if (!(encoder->possible_crtcs & (1 << i)))
7774 if (!possible_crtc->enabled) {
7775 crtc = possible_crtc;
7781 * If we didn't find an unused CRTC, don't use any.
7784 DRM_DEBUG_KMS("no pipe available for load-detect\n");
7788 mutex_lock(&crtc->mutex);
7789 intel_encoder->new_crtc = to_intel_crtc(crtc);
7790 to_intel_connector(connector)->new_encoder = intel_encoder;
7792 intel_crtc = to_intel_crtc(crtc);
7793 old->dpms_mode = connector->dpms;
7794 old->load_detect_temp = true;
7795 old->release_fb = NULL;
7798 mode = &load_detect_mode;
7800 /* We need a framebuffer large enough to accommodate all accesses
7801 * that the plane may generate whilst we perform load detection.
7802 * We can not rely on the fbcon either being present (we get called
7803 * during its initialisation to detect all boot displays, or it may
7804 * not even exist) or that it is large enough to satisfy the
7807 fb = mode_fits_in_fbdev(dev, mode);
7809 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
7810 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
7811 old->release_fb = fb;
7813 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
7815 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
7816 mutex_unlock(&crtc->mutex);
7820 if (intel_set_mode(crtc, mode, 0, 0, fb)) {
7821 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
7822 if (old->release_fb)
7823 old->release_fb->funcs->destroy(old->release_fb);
7824 mutex_unlock(&crtc->mutex);
7828 /* let the connector get through one full cycle before testing */
7829 intel_wait_for_vblank(dev, intel_crtc->pipe);
7833 void intel_release_load_detect_pipe(struct drm_connector *connector,
7834 struct intel_load_detect_pipe *old)
7836 struct intel_encoder *intel_encoder =
7837 intel_attached_encoder(connector);
7838 struct drm_encoder *encoder = &intel_encoder->base;
7839 struct drm_crtc *crtc = encoder->crtc;
7841 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7842 connector->base.id, drm_get_connector_name(connector),
7843 encoder->base.id, drm_get_encoder_name(encoder));
7845 if (old->load_detect_temp) {
7846 to_intel_connector(connector)->new_encoder = NULL;
7847 intel_encoder->new_crtc = NULL;
7848 intel_set_mode(crtc, NULL, 0, 0, NULL);
7850 if (old->release_fb) {
7851 drm_framebuffer_unregister_private(old->release_fb);
7852 drm_framebuffer_unreference(old->release_fb);
7855 mutex_unlock(&crtc->mutex);
7859 /* Switch crtc and encoder back off if necessary */
7860 if (old->dpms_mode != DRM_MODE_DPMS_ON)
7861 connector->funcs->dpms(connector, old->dpms_mode);
7863 mutex_unlock(&crtc->mutex);
7866 static int i9xx_pll_refclk(struct drm_device *dev,
7867 const struct intel_crtc_config *pipe_config)
7869 struct drm_i915_private *dev_priv = dev->dev_private;
7870 u32 dpll = pipe_config->dpll_hw_state.dpll;
7872 if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN)
7873 return dev_priv->vbt.lvds_ssc_freq * 1000;
7874 else if (HAS_PCH_SPLIT(dev))
7876 else if (!IS_GEN2(dev))
7882 /* Returns the clock of the currently programmed mode of the given pipe. */
7883 static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
7884 struct intel_crtc_config *pipe_config)
7886 struct drm_device *dev = crtc->base.dev;
7887 struct drm_i915_private *dev_priv = dev->dev_private;
7888 int pipe = pipe_config->cpu_transcoder;
7889 u32 dpll = pipe_config->dpll_hw_state.dpll;
7891 intel_clock_t clock;
7892 int refclk = i9xx_pll_refclk(dev, pipe_config);
7894 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
7895 fp = pipe_config->dpll_hw_state.fp0;
7897 fp = pipe_config->dpll_hw_state.fp1;
7899 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
7900 if (IS_PINEVIEW(dev)) {
7901 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
7902 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
7904 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
7905 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
7908 if (!IS_GEN2(dev)) {
7909 if (IS_PINEVIEW(dev))
7910 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
7911 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
7913 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
7914 DPLL_FPA01_P1_POST_DIV_SHIFT);
7916 switch (dpll & DPLL_MODE_MASK) {
7917 case DPLLB_MODE_DAC_SERIAL:
7918 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
7921 case DPLLB_MODE_LVDS:
7922 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
7926 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
7927 "mode\n", (int)(dpll & DPLL_MODE_MASK));
7931 if (IS_PINEVIEW(dev))
7932 pineview_clock(refclk, &clock);
7934 i9xx_clock(refclk, &clock);
7936 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
7939 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
7940 DPLL_FPA01_P1_POST_DIV_SHIFT);
7943 if (dpll & PLL_P1_DIVIDE_BY_TWO)
7946 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
7947 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
7949 if (dpll & PLL_P2_DIVIDE_BY_4)
7955 i9xx_clock(refclk, &clock);
7959 * This value includes pixel_multiplier. We will use
7960 * port_clock to compute adjusted_mode.crtc_clock in the
7961 * encoder's get_config() function.
7963 pipe_config->port_clock = clock.dot;
7966 int intel_dotclock_calculate(int link_freq,
7967 const struct intel_link_m_n *m_n)
7970 * The calculation for the data clock is:
7971 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
7972 * But we want to avoid losing precison if possible, so:
7973 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
7975 * and the link clock is simpler:
7976 * link_clock = (m * link_clock) / n
7982 return div_u64((u64)m_n->link_m * link_freq, m_n->link_n);
7985 static void ironlake_pch_clock_get(struct intel_crtc *crtc,
7986 struct intel_crtc_config *pipe_config)
7988 struct drm_device *dev = crtc->base.dev;
7990 /* read out port_clock from the DPLL */
7991 i9xx_crtc_clock_get(crtc, pipe_config);
7994 * This value does not include pixel_multiplier.
7995 * We will check that port_clock and adjusted_mode.crtc_clock
7996 * agree once we know their relationship in the encoder's
7997 * get_config() function.
7999 pipe_config->adjusted_mode.crtc_clock =
8000 intel_dotclock_calculate(intel_fdi_link_freq(dev) * 10000,
8001 &pipe_config->fdi_m_n);
8004 /** Returns the currently programmed mode of the given pipe. */
8005 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
8006 struct drm_crtc *crtc)
8008 struct drm_i915_private *dev_priv = dev->dev_private;
8009 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8010 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
8011 struct drm_display_mode *mode;
8012 struct intel_crtc_config pipe_config;
8013 int htot = I915_READ(HTOTAL(cpu_transcoder));
8014 int hsync = I915_READ(HSYNC(cpu_transcoder));
8015 int vtot = I915_READ(VTOTAL(cpu_transcoder));
8016 int vsync = I915_READ(VSYNC(cpu_transcoder));
8017 enum pipe pipe = intel_crtc->pipe;
8019 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
8024 * Construct a pipe_config sufficient for getting the clock info
8025 * back out of crtc_clock_get.
8027 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
8028 * to use a real value here instead.
8030 pipe_config.cpu_transcoder = (enum transcoder) pipe;
8031 pipe_config.pixel_multiplier = 1;
8032 pipe_config.dpll_hw_state.dpll = I915_READ(DPLL(pipe));
8033 pipe_config.dpll_hw_state.fp0 = I915_READ(FP0(pipe));
8034 pipe_config.dpll_hw_state.fp1 = I915_READ(FP1(pipe));
8035 i9xx_crtc_clock_get(intel_crtc, &pipe_config);
8037 mode->clock = pipe_config.port_clock / pipe_config.pixel_multiplier;
8038 mode->hdisplay = (htot & 0xffff) + 1;
8039 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
8040 mode->hsync_start = (hsync & 0xffff) + 1;
8041 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
8042 mode->vdisplay = (vtot & 0xffff) + 1;
8043 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
8044 mode->vsync_start = (vsync & 0xffff) + 1;
8045 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
8047 drm_mode_set_name(mode);
8052 static void intel_increase_pllclock(struct drm_crtc *crtc)
8054 struct drm_device *dev = crtc->dev;
8055 drm_i915_private_t *dev_priv = dev->dev_private;
8056 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8057 int pipe = intel_crtc->pipe;
8058 int dpll_reg = DPLL(pipe);
8061 if (HAS_PCH_SPLIT(dev))
8064 if (!dev_priv->lvds_downclock_avail)
8067 dpll = I915_READ(dpll_reg);
8068 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
8069 DRM_DEBUG_DRIVER("upclocking LVDS\n");
8071 assert_panel_unlocked(dev_priv, pipe);
8073 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
8074 I915_WRITE(dpll_reg, dpll);
8075 intel_wait_for_vblank(dev, pipe);
8077 dpll = I915_READ(dpll_reg);
8078 if (dpll & DISPLAY_RATE_SELECT_FPA1)
8079 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
8083 static void intel_decrease_pllclock(struct drm_crtc *crtc)
8085 struct drm_device *dev = crtc->dev;
8086 drm_i915_private_t *dev_priv = dev->dev_private;
8087 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8089 if (HAS_PCH_SPLIT(dev))
8092 if (!dev_priv->lvds_downclock_avail)
8096 * Since this is called by a timer, we should never get here in
8099 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
8100 int pipe = intel_crtc->pipe;
8101 int dpll_reg = DPLL(pipe);
8104 DRM_DEBUG_DRIVER("downclocking LVDS\n");
8106 assert_panel_unlocked(dev_priv, pipe);
8108 dpll = I915_READ(dpll_reg);
8109 dpll |= DISPLAY_RATE_SELECT_FPA1;
8110 I915_WRITE(dpll_reg, dpll);
8111 intel_wait_for_vblank(dev, pipe);
8112 dpll = I915_READ(dpll_reg);
8113 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
8114 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
8119 void intel_mark_busy(struct drm_device *dev)
8121 struct drm_i915_private *dev_priv = dev->dev_private;
8123 hsw_package_c8_gpu_busy(dev_priv);
8124 i915_update_gfx_val(dev_priv);
8127 void intel_mark_idle(struct drm_device *dev)
8129 struct drm_i915_private *dev_priv = dev->dev_private;
8130 struct drm_crtc *crtc;
8132 hsw_package_c8_gpu_idle(dev_priv);
8134 if (!i915_powersave)
8137 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
8141 intel_decrease_pllclock(crtc);
8144 if (dev_priv->info->gen >= 6)
8145 gen6_rps_idle(dev->dev_private);
8148 void intel_mark_fb_busy(struct drm_i915_gem_object *obj,
8149 struct intel_ring_buffer *ring)
8151 struct drm_device *dev = obj->base.dev;
8152 struct drm_crtc *crtc;
8154 if (!i915_powersave)
8157 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
8161 if (to_intel_framebuffer(crtc->fb)->obj != obj)
8164 intel_increase_pllclock(crtc);
8165 if (ring && intel_fbc_enabled(dev))
8166 ring->fbc_dirty = true;
8170 static void intel_crtc_destroy(struct drm_crtc *crtc)
8172 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8173 struct drm_device *dev = crtc->dev;
8174 struct intel_unpin_work *work;
8175 unsigned long flags;
8177 spin_lock_irqsave(&dev->event_lock, flags);
8178 work = intel_crtc->unpin_work;
8179 intel_crtc->unpin_work = NULL;
8180 spin_unlock_irqrestore(&dev->event_lock, flags);
8183 cancel_work_sync(&work->work);
8187 intel_crtc_cursor_set(crtc, NULL, 0, 0, 0);
8189 drm_crtc_cleanup(crtc);
8194 static void intel_unpin_work_fn(struct work_struct *__work)
8196 struct intel_unpin_work *work =
8197 container_of(__work, struct intel_unpin_work, work);
8198 struct drm_device *dev = work->crtc->dev;
8200 mutex_lock(&dev->struct_mutex);
8201 intel_unpin_fb_obj(work->old_fb_obj);
8202 drm_gem_object_unreference(&work->pending_flip_obj->base);
8203 drm_gem_object_unreference(&work->old_fb_obj->base);
8205 intel_update_fbc(dev);
8206 mutex_unlock(&dev->struct_mutex);
8208 BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
8209 atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
8214 static void do_intel_finish_page_flip(struct drm_device *dev,
8215 struct drm_crtc *crtc)
8217 drm_i915_private_t *dev_priv = dev->dev_private;
8218 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8219 struct intel_unpin_work *work;
8220 unsigned long flags;
8222 /* Ignore early vblank irqs */
8223 if (intel_crtc == NULL)
8226 spin_lock_irqsave(&dev->event_lock, flags);
8227 work = intel_crtc->unpin_work;
8229 /* Ensure we don't miss a work->pending update ... */
8232 if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
8233 spin_unlock_irqrestore(&dev->event_lock, flags);
8237 /* and that the unpin work is consistent wrt ->pending. */
8240 intel_crtc->unpin_work = NULL;
8243 drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
8245 drm_vblank_put(dev, intel_crtc->pipe);
8247 spin_unlock_irqrestore(&dev->event_lock, flags);
8249 wake_up_all(&dev_priv->pending_flip_queue);
8251 queue_work(dev_priv->wq, &work->work);
8253 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
8256 void intel_finish_page_flip(struct drm_device *dev, int pipe)
8258 drm_i915_private_t *dev_priv = dev->dev_private;
8259 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
8261 do_intel_finish_page_flip(dev, crtc);
8264 void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
8266 drm_i915_private_t *dev_priv = dev->dev_private;
8267 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
8269 do_intel_finish_page_flip(dev, crtc);
8272 void intel_prepare_page_flip(struct drm_device *dev, int plane)
8274 drm_i915_private_t *dev_priv = dev->dev_private;
8275 struct intel_crtc *intel_crtc =
8276 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
8277 unsigned long flags;
8279 /* NB: An MMIO update of the plane base pointer will also
8280 * generate a page-flip completion irq, i.e. every modeset
8281 * is also accompanied by a spurious intel_prepare_page_flip().
8283 spin_lock_irqsave(&dev->event_lock, flags);
8284 if (intel_crtc->unpin_work)
8285 atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
8286 spin_unlock_irqrestore(&dev->event_lock, flags);
8289 inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
8291 /* Ensure that the work item is consistent when activating it ... */
8293 atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
8294 /* and that it is marked active as soon as the irq could fire. */
8298 static int intel_gen2_queue_flip(struct drm_device *dev,
8299 struct drm_crtc *crtc,
8300 struct drm_framebuffer *fb,
8301 struct drm_i915_gem_object *obj,
8304 struct drm_i915_private *dev_priv = dev->dev_private;
8305 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8307 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8310 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8314 ret = intel_ring_begin(ring, 6);
8318 /* Can't queue multiple flips, so wait for the previous
8319 * one to finish before executing the next.
8321 if (intel_crtc->plane)
8322 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
8324 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
8325 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
8326 intel_ring_emit(ring, MI_NOOP);
8327 intel_ring_emit(ring, MI_DISPLAY_FLIP |
8328 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8329 intel_ring_emit(ring, fb->pitches[0]);
8330 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8331 intel_ring_emit(ring, 0); /* aux display base address, unused */
8333 intel_mark_page_flip_active(intel_crtc);
8334 __intel_ring_advance(ring);
8338 intel_unpin_fb_obj(obj);
8343 static int intel_gen3_queue_flip(struct drm_device *dev,
8344 struct drm_crtc *crtc,
8345 struct drm_framebuffer *fb,
8346 struct drm_i915_gem_object *obj,
8349 struct drm_i915_private *dev_priv = dev->dev_private;
8350 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8352 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8355 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8359 ret = intel_ring_begin(ring, 6);
8363 if (intel_crtc->plane)
8364 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
8366 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
8367 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
8368 intel_ring_emit(ring, MI_NOOP);
8369 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
8370 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8371 intel_ring_emit(ring, fb->pitches[0]);
8372 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8373 intel_ring_emit(ring, MI_NOOP);
8375 intel_mark_page_flip_active(intel_crtc);
8376 __intel_ring_advance(ring);
8380 intel_unpin_fb_obj(obj);
8385 static int intel_gen4_queue_flip(struct drm_device *dev,
8386 struct drm_crtc *crtc,
8387 struct drm_framebuffer *fb,
8388 struct drm_i915_gem_object *obj,
8391 struct drm_i915_private *dev_priv = dev->dev_private;
8392 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8393 uint32_t pf, pipesrc;
8394 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8397 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8401 ret = intel_ring_begin(ring, 4);
8405 /* i965+ uses the linear or tiled offsets from the
8406 * Display Registers (which do not change across a page-flip)
8407 * so we need only reprogram the base address.
8409 intel_ring_emit(ring, MI_DISPLAY_FLIP |
8410 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8411 intel_ring_emit(ring, fb->pitches[0]);
8412 intel_ring_emit(ring,
8413 (i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset) |
8416 /* XXX Enabling the panel-fitter across page-flip is so far
8417 * untested on non-native modes, so ignore it for now.
8418 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
8421 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
8422 intel_ring_emit(ring, pf | pipesrc);
8424 intel_mark_page_flip_active(intel_crtc);
8425 __intel_ring_advance(ring);
8429 intel_unpin_fb_obj(obj);
8434 static int intel_gen6_queue_flip(struct drm_device *dev,
8435 struct drm_crtc *crtc,
8436 struct drm_framebuffer *fb,
8437 struct drm_i915_gem_object *obj,
8440 struct drm_i915_private *dev_priv = dev->dev_private;
8441 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8442 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8443 uint32_t pf, pipesrc;
8446 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8450 ret = intel_ring_begin(ring, 4);
8454 intel_ring_emit(ring, MI_DISPLAY_FLIP |
8455 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8456 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
8457 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8459 /* Contrary to the suggestions in the documentation,
8460 * "Enable Panel Fitter" does not seem to be required when page
8461 * flipping with a non-native mode, and worse causes a normal
8463 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
8466 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
8467 intel_ring_emit(ring, pf | pipesrc);
8469 intel_mark_page_flip_active(intel_crtc);
8470 __intel_ring_advance(ring);
8474 intel_unpin_fb_obj(obj);
8479 static int intel_gen7_queue_flip(struct drm_device *dev,
8480 struct drm_crtc *crtc,
8481 struct drm_framebuffer *fb,
8482 struct drm_i915_gem_object *obj,
8485 struct drm_i915_private *dev_priv = dev->dev_private;
8486 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8487 struct intel_ring_buffer *ring;
8488 uint32_t plane_bit = 0;
8492 if (IS_VALLEYVIEW(dev) || ring == NULL || ring->id != RCS)
8493 ring = &dev_priv->ring[BCS];
8495 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8499 switch(intel_crtc->plane) {
8501 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
8504 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
8507 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
8510 WARN_ONCE(1, "unknown plane in flip command\n");
8516 if (ring->id == RCS)
8519 ret = intel_ring_begin(ring, len);
8523 /* Unmask the flip-done completion message. Note that the bspec says that
8524 * we should do this for both the BCS and RCS, and that we must not unmask
8525 * more than one flip event at any time (or ensure that one flip message
8526 * can be sent by waiting for flip-done prior to queueing new flips).
8527 * Experimentation says that BCS works despite DERRMR masking all
8528 * flip-done completion events and that unmasking all planes at once
8529 * for the RCS also doesn't appear to drop events. Setting the DERRMR
8530 * to zero does lead to lockups within MI_DISPLAY_FLIP.
8532 if (ring->id == RCS) {
8533 intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
8534 intel_ring_emit(ring, DERRMR);
8535 intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE |
8536 DERRMR_PIPEB_PRI_FLIP_DONE |
8537 DERRMR_PIPEC_PRI_FLIP_DONE));
8538 intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1) |
8539 MI_SRM_LRM_GLOBAL_GTT);
8540 intel_ring_emit(ring, DERRMR);
8541 intel_ring_emit(ring, ring->scratch.gtt_offset + 256);
8544 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
8545 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
8546 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8547 intel_ring_emit(ring, (MI_NOOP));
8549 intel_mark_page_flip_active(intel_crtc);
8550 __intel_ring_advance(ring);
8554 intel_unpin_fb_obj(obj);
8559 static int intel_default_queue_flip(struct drm_device *dev,
8560 struct drm_crtc *crtc,
8561 struct drm_framebuffer *fb,
8562 struct drm_i915_gem_object *obj,
8568 static int intel_crtc_page_flip(struct drm_crtc *crtc,
8569 struct drm_framebuffer *fb,
8570 struct drm_pending_vblank_event *event,
8571 uint32_t page_flip_flags)
8573 struct drm_device *dev = crtc->dev;
8574 struct drm_i915_private *dev_priv = dev->dev_private;
8575 struct drm_framebuffer *old_fb = crtc->fb;
8576 struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
8577 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8578 struct intel_unpin_work *work;
8579 unsigned long flags;
8582 /* Can't change pixel format via MI display flips. */
8583 if (fb->pixel_format != crtc->fb->pixel_format)
8587 * TILEOFF/LINOFF registers can't be changed via MI display flips.
8588 * Note that pitch changes could also affect these register.
8590 if (INTEL_INFO(dev)->gen > 3 &&
8591 (fb->offsets[0] != crtc->fb->offsets[0] ||
8592 fb->pitches[0] != crtc->fb->pitches[0]))
8595 work = kzalloc(sizeof(*work), GFP_KERNEL);
8599 work->event = event;
8601 work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
8602 INIT_WORK(&work->work, intel_unpin_work_fn);
8604 ret = drm_vblank_get(dev, intel_crtc->pipe);
8608 /* We borrow the event spin lock for protecting unpin_work */
8609 spin_lock_irqsave(&dev->event_lock, flags);
8610 if (intel_crtc->unpin_work) {
8611 spin_unlock_irqrestore(&dev->event_lock, flags);
8613 drm_vblank_put(dev, intel_crtc->pipe);
8615 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
8618 intel_crtc->unpin_work = work;
8619 spin_unlock_irqrestore(&dev->event_lock, flags);
8621 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
8622 flush_workqueue(dev_priv->wq);
8624 ret = i915_mutex_lock_interruptible(dev);
8628 /* Reference the objects for the scheduled work. */
8629 drm_gem_object_reference(&work->old_fb_obj->base);
8630 drm_gem_object_reference(&obj->base);
8634 work->pending_flip_obj = obj;
8636 work->enable_stall_check = true;
8638 atomic_inc(&intel_crtc->unpin_work_count);
8639 intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
8641 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, page_flip_flags);
8643 goto cleanup_pending;
8645 intel_disable_fbc(dev);
8646 intel_mark_fb_busy(obj, NULL);
8647 mutex_unlock(&dev->struct_mutex);
8649 trace_i915_flip_request(intel_crtc->plane, obj);
8654 atomic_dec(&intel_crtc->unpin_work_count);
8656 drm_gem_object_unreference(&work->old_fb_obj->base);
8657 drm_gem_object_unreference(&obj->base);
8658 mutex_unlock(&dev->struct_mutex);
8661 spin_lock_irqsave(&dev->event_lock, flags);
8662 intel_crtc->unpin_work = NULL;
8663 spin_unlock_irqrestore(&dev->event_lock, flags);
8665 drm_vblank_put(dev, intel_crtc->pipe);
8672 static struct drm_crtc_helper_funcs intel_helper_funcs = {
8673 .mode_set_base_atomic = intel_pipe_set_base_atomic,
8674 .load_lut = intel_crtc_load_lut,
8677 static bool intel_encoder_crtc_ok(struct drm_encoder *encoder,
8678 struct drm_crtc *crtc)
8680 struct drm_device *dev;
8681 struct drm_crtc *tmp;
8684 WARN(!crtc, "checking null crtc?\n");
8688 list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
8694 if (encoder->possible_crtcs & crtc_mask)
8700 * intel_modeset_update_staged_output_state
8702 * Updates the staged output configuration state, e.g. after we've read out the
8705 static void intel_modeset_update_staged_output_state(struct drm_device *dev)
8707 struct intel_encoder *encoder;
8708 struct intel_connector *connector;
8710 list_for_each_entry(connector, &dev->mode_config.connector_list,
8712 connector->new_encoder =
8713 to_intel_encoder(connector->base.encoder);
8716 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8719 to_intel_crtc(encoder->base.crtc);
8724 * intel_modeset_commit_output_state
8726 * This function copies the stage display pipe configuration to the real one.
8728 static void intel_modeset_commit_output_state(struct drm_device *dev)
8730 struct intel_encoder *encoder;
8731 struct intel_connector *connector;
8733 list_for_each_entry(connector, &dev->mode_config.connector_list,
8735 connector->base.encoder = &connector->new_encoder->base;
8738 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8740 encoder->base.crtc = &encoder->new_crtc->base;
8745 connected_sink_compute_bpp(struct intel_connector * connector,
8746 struct intel_crtc_config *pipe_config)
8748 int bpp = pipe_config->pipe_bpp;
8750 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
8751 connector->base.base.id,
8752 drm_get_connector_name(&connector->base));
8754 /* Don't use an invalid EDID bpc value */
8755 if (connector->base.display_info.bpc &&
8756 connector->base.display_info.bpc * 3 < bpp) {
8757 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
8758 bpp, connector->base.display_info.bpc*3);
8759 pipe_config->pipe_bpp = connector->base.display_info.bpc*3;
8762 /* Clamp bpp to 8 on screens without EDID 1.4 */
8763 if (connector->base.display_info.bpc == 0 && bpp > 24) {
8764 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
8766 pipe_config->pipe_bpp = 24;
8771 compute_baseline_pipe_bpp(struct intel_crtc *crtc,
8772 struct drm_framebuffer *fb,
8773 struct intel_crtc_config *pipe_config)
8775 struct drm_device *dev = crtc->base.dev;
8776 struct intel_connector *connector;
8779 switch (fb->pixel_format) {
8781 bpp = 8*3; /* since we go through a colormap */
8783 case DRM_FORMAT_XRGB1555:
8784 case DRM_FORMAT_ARGB1555:
8785 /* checked in intel_framebuffer_init already */
8786 if (WARN_ON(INTEL_INFO(dev)->gen > 3))
8788 case DRM_FORMAT_RGB565:
8789 bpp = 6*3; /* min is 18bpp */
8791 case DRM_FORMAT_XBGR8888:
8792 case DRM_FORMAT_ABGR8888:
8793 /* checked in intel_framebuffer_init already */
8794 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
8796 case DRM_FORMAT_XRGB8888:
8797 case DRM_FORMAT_ARGB8888:
8800 case DRM_FORMAT_XRGB2101010:
8801 case DRM_FORMAT_ARGB2101010:
8802 case DRM_FORMAT_XBGR2101010:
8803 case DRM_FORMAT_ABGR2101010:
8804 /* checked in intel_framebuffer_init already */
8805 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
8809 /* TODO: gen4+ supports 16 bpc floating point, too. */
8811 DRM_DEBUG_KMS("unsupported depth\n");
8815 pipe_config->pipe_bpp = bpp;
8817 /* Clamp display bpp to EDID value */
8818 list_for_each_entry(connector, &dev->mode_config.connector_list,
8820 if (!connector->new_encoder ||
8821 connector->new_encoder->new_crtc != crtc)
8824 connected_sink_compute_bpp(connector, pipe_config);
8830 static void intel_dump_crtc_timings(const struct drm_display_mode *mode)
8832 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
8833 "type: 0x%x flags: 0x%x\n",
8835 mode->crtc_hdisplay, mode->crtc_hsync_start,
8836 mode->crtc_hsync_end, mode->crtc_htotal,
8837 mode->crtc_vdisplay, mode->crtc_vsync_start,
8838 mode->crtc_vsync_end, mode->crtc_vtotal, mode->type, mode->flags);
8841 static void intel_dump_pipe_config(struct intel_crtc *crtc,
8842 struct intel_crtc_config *pipe_config,
8843 const char *context)
8845 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id,
8846 context, pipe_name(crtc->pipe));
8848 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder));
8849 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
8850 pipe_config->pipe_bpp, pipe_config->dither);
8851 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
8852 pipe_config->has_pch_encoder,
8853 pipe_config->fdi_lanes,
8854 pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n,
8855 pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n,
8856 pipe_config->fdi_m_n.tu);
8857 DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
8858 pipe_config->has_dp_encoder,
8859 pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n,
8860 pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n,
8861 pipe_config->dp_m_n.tu);
8862 DRM_DEBUG_KMS("requested mode:\n");
8863 drm_mode_debug_printmodeline(&pipe_config->requested_mode);
8864 DRM_DEBUG_KMS("adjusted mode:\n");
8865 drm_mode_debug_printmodeline(&pipe_config->adjusted_mode);
8866 intel_dump_crtc_timings(&pipe_config->adjusted_mode);
8867 DRM_DEBUG_KMS("port clock: %d\n", pipe_config->port_clock);
8868 DRM_DEBUG_KMS("pipe src size: %dx%d\n",
8869 pipe_config->pipe_src_w, pipe_config->pipe_src_h);
8870 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
8871 pipe_config->gmch_pfit.control,
8872 pipe_config->gmch_pfit.pgm_ratios,
8873 pipe_config->gmch_pfit.lvds_border_bits);
8874 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
8875 pipe_config->pch_pfit.pos,
8876 pipe_config->pch_pfit.size,
8877 pipe_config->pch_pfit.enabled ? "enabled" : "disabled");
8878 DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled);
8879 DRM_DEBUG_KMS("double wide: %i\n", pipe_config->double_wide);
8882 static bool check_encoder_cloning(struct drm_crtc *crtc)
8884 int num_encoders = 0;
8885 bool uncloneable_encoders = false;
8886 struct intel_encoder *encoder;
8888 list_for_each_entry(encoder, &crtc->dev->mode_config.encoder_list,
8890 if (&encoder->new_crtc->base != crtc)
8894 if (!encoder->cloneable)
8895 uncloneable_encoders = true;
8898 return !(num_encoders > 1 && uncloneable_encoders);
8901 static struct intel_crtc_config *
8902 intel_modeset_pipe_config(struct drm_crtc *crtc,
8903 struct drm_framebuffer *fb,
8904 struct drm_display_mode *mode)
8906 struct drm_device *dev = crtc->dev;
8907 struct intel_encoder *encoder;
8908 struct intel_crtc_config *pipe_config;
8909 int plane_bpp, ret = -EINVAL;
8912 if (!check_encoder_cloning(crtc)) {
8913 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
8914 return ERR_PTR(-EINVAL);
8917 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
8919 return ERR_PTR(-ENOMEM);
8921 drm_mode_copy(&pipe_config->adjusted_mode, mode);
8922 drm_mode_copy(&pipe_config->requested_mode, mode);
8924 pipe_config->cpu_transcoder =
8925 (enum transcoder) to_intel_crtc(crtc)->pipe;
8926 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
8929 * Sanitize sync polarity flags based on requested ones. If neither
8930 * positive or negative polarity is requested, treat this as meaning
8931 * negative polarity.
8933 if (!(pipe_config->adjusted_mode.flags &
8934 (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC)))
8935 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC;
8937 if (!(pipe_config->adjusted_mode.flags &
8938 (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC)))
8939 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC;
8941 /* Compute a starting value for pipe_config->pipe_bpp taking the source
8942 * plane pixel format and any sink constraints into account. Returns the
8943 * source plane bpp so that dithering can be selected on mismatches
8944 * after encoders and crtc also have had their say. */
8945 plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc),
8951 * Determine the real pipe dimensions. Note that stereo modes can
8952 * increase the actual pipe size due to the frame doubling and
8953 * insertion of additional space for blanks between the frame. This
8954 * is stored in the crtc timings. We use the requested mode to do this
8955 * computation to clearly distinguish it from the adjusted mode, which
8956 * can be changed by the connectors in the below retry loop.
8958 drm_mode_set_crtcinfo(&pipe_config->requested_mode, CRTC_STEREO_DOUBLE);
8959 pipe_config->pipe_src_w = pipe_config->requested_mode.crtc_hdisplay;
8960 pipe_config->pipe_src_h = pipe_config->requested_mode.crtc_vdisplay;
8963 /* Ensure the port clock defaults are reset when retrying. */
8964 pipe_config->port_clock = 0;
8965 pipe_config->pixel_multiplier = 1;
8967 /* Fill in default crtc timings, allow encoders to overwrite them. */
8968 drm_mode_set_crtcinfo(&pipe_config->adjusted_mode, CRTC_STEREO_DOUBLE);
8970 /* Pass our mode to the connectors and the CRTC to give them a chance to
8971 * adjust it according to limitations or connector properties, and also
8972 * a chance to reject the mode entirely.
8974 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8977 if (&encoder->new_crtc->base != crtc)
8980 if (!(encoder->compute_config(encoder, pipe_config))) {
8981 DRM_DEBUG_KMS("Encoder config failure\n");
8986 /* Set default port clock if not overwritten by the encoder. Needs to be
8987 * done afterwards in case the encoder adjusts the mode. */
8988 if (!pipe_config->port_clock)
8989 pipe_config->port_clock = pipe_config->adjusted_mode.crtc_clock
8990 * pipe_config->pixel_multiplier;
8992 ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config);
8994 DRM_DEBUG_KMS("CRTC fixup failed\n");
8999 if (WARN(!retry, "loop in pipe configuration computation\n")) {
9004 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
9009 pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
9010 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
9011 plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
9016 return ERR_PTR(ret);
9019 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
9020 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
9022 intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
9023 unsigned *prepare_pipes, unsigned *disable_pipes)
9025 struct intel_crtc *intel_crtc;
9026 struct drm_device *dev = crtc->dev;
9027 struct intel_encoder *encoder;
9028 struct intel_connector *connector;
9029 struct drm_crtc *tmp_crtc;
9031 *disable_pipes = *modeset_pipes = *prepare_pipes = 0;
9033 /* Check which crtcs have changed outputs connected to them, these need
9034 * to be part of the prepare_pipes mask. We don't (yet) support global
9035 * modeset across multiple crtcs, so modeset_pipes will only have one
9036 * bit set at most. */
9037 list_for_each_entry(connector, &dev->mode_config.connector_list,
9039 if (connector->base.encoder == &connector->new_encoder->base)
9042 if (connector->base.encoder) {
9043 tmp_crtc = connector->base.encoder->crtc;
9045 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
9048 if (connector->new_encoder)
9050 1 << connector->new_encoder->new_crtc->pipe;
9053 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9055 if (encoder->base.crtc == &encoder->new_crtc->base)
9058 if (encoder->base.crtc) {
9059 tmp_crtc = encoder->base.crtc;
9061 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
9064 if (encoder->new_crtc)
9065 *prepare_pipes |= 1 << encoder->new_crtc->pipe;
9068 /* Check for any pipes that will be fully disabled ... */
9069 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
9073 /* Don't try to disable disabled crtcs. */
9074 if (!intel_crtc->base.enabled)
9077 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9079 if (encoder->new_crtc == intel_crtc)
9084 *disable_pipes |= 1 << intel_crtc->pipe;
9088 /* set_mode is also used to update properties on life display pipes. */
9089 intel_crtc = to_intel_crtc(crtc);
9091 *prepare_pipes |= 1 << intel_crtc->pipe;
9094 * For simplicity do a full modeset on any pipe where the output routing
9095 * changed. We could be more clever, but that would require us to be
9096 * more careful with calling the relevant encoder->mode_set functions.
9099 *modeset_pipes = *prepare_pipes;
9101 /* ... and mask these out. */
9102 *modeset_pipes &= ~(*disable_pipes);
9103 *prepare_pipes &= ~(*disable_pipes);
9106 * HACK: We don't (yet) fully support global modesets. intel_set_config
9107 * obies this rule, but the modeset restore mode of
9108 * intel_modeset_setup_hw_state does not.
9110 *modeset_pipes &= 1 << intel_crtc->pipe;
9111 *prepare_pipes &= 1 << intel_crtc->pipe;
9113 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
9114 *modeset_pipes, *prepare_pipes, *disable_pipes);
9117 static bool intel_crtc_in_use(struct drm_crtc *crtc)
9119 struct drm_encoder *encoder;
9120 struct drm_device *dev = crtc->dev;
9122 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
9123 if (encoder->crtc == crtc)
9130 intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
9132 struct intel_encoder *intel_encoder;
9133 struct intel_crtc *intel_crtc;
9134 struct drm_connector *connector;
9136 list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
9138 if (!intel_encoder->base.crtc)
9141 intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
9143 if (prepare_pipes & (1 << intel_crtc->pipe))
9144 intel_encoder->connectors_active = false;
9147 intel_modeset_commit_output_state(dev);
9149 /* Update computed state. */
9150 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
9152 intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base);
9155 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
9156 if (!connector->encoder || !connector->encoder->crtc)
9159 intel_crtc = to_intel_crtc(connector->encoder->crtc);
9161 if (prepare_pipes & (1 << intel_crtc->pipe)) {
9162 struct drm_property *dpms_property =
9163 dev->mode_config.dpms_property;
9165 connector->dpms = DRM_MODE_DPMS_ON;
9166 drm_object_property_set_value(&connector->base,
9170 intel_encoder = to_intel_encoder(connector->encoder);
9171 intel_encoder->connectors_active = true;
9177 static bool intel_fuzzy_clock_check(int clock1, int clock2)
9181 if (clock1 == clock2)
9184 if (!clock1 || !clock2)
9187 diff = abs(clock1 - clock2);
9189 if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105)
9195 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
9196 list_for_each_entry((intel_crtc), \
9197 &(dev)->mode_config.crtc_list, \
9199 if (mask & (1 <<(intel_crtc)->pipe))
9202 intel_pipe_config_compare(struct drm_device *dev,
9203 struct intel_crtc_config *current_config,
9204 struct intel_crtc_config *pipe_config)
9206 #define PIPE_CONF_CHECK_X(name) \
9207 if (current_config->name != pipe_config->name) { \
9208 DRM_ERROR("mismatch in " #name " " \
9209 "(expected 0x%08x, found 0x%08x)\n", \
9210 current_config->name, \
9211 pipe_config->name); \
9215 #define PIPE_CONF_CHECK_I(name) \
9216 if (current_config->name != pipe_config->name) { \
9217 DRM_ERROR("mismatch in " #name " " \
9218 "(expected %i, found %i)\n", \
9219 current_config->name, \
9220 pipe_config->name); \
9224 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
9225 if ((current_config->name ^ pipe_config->name) & (mask)) { \
9226 DRM_ERROR("mismatch in " #name "(" #mask ") " \
9227 "(expected %i, found %i)\n", \
9228 current_config->name & (mask), \
9229 pipe_config->name & (mask)); \
9233 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
9234 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
9235 DRM_ERROR("mismatch in " #name " " \
9236 "(expected %i, found %i)\n", \
9237 current_config->name, \
9238 pipe_config->name); \
9242 #define PIPE_CONF_QUIRK(quirk) \
9243 ((current_config->quirks | pipe_config->quirks) & (quirk))
9245 PIPE_CONF_CHECK_I(cpu_transcoder);
9247 PIPE_CONF_CHECK_I(has_pch_encoder);
9248 PIPE_CONF_CHECK_I(fdi_lanes);
9249 PIPE_CONF_CHECK_I(fdi_m_n.gmch_m);
9250 PIPE_CONF_CHECK_I(fdi_m_n.gmch_n);
9251 PIPE_CONF_CHECK_I(fdi_m_n.link_m);
9252 PIPE_CONF_CHECK_I(fdi_m_n.link_n);
9253 PIPE_CONF_CHECK_I(fdi_m_n.tu);
9255 PIPE_CONF_CHECK_I(has_dp_encoder);
9256 PIPE_CONF_CHECK_I(dp_m_n.gmch_m);
9257 PIPE_CONF_CHECK_I(dp_m_n.gmch_n);
9258 PIPE_CONF_CHECK_I(dp_m_n.link_m);
9259 PIPE_CONF_CHECK_I(dp_m_n.link_n);
9260 PIPE_CONF_CHECK_I(dp_m_n.tu);
9262 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay);
9263 PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal);
9264 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start);
9265 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end);
9266 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start);
9267 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end);
9269 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay);
9270 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal);
9271 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start);
9272 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end);
9273 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start);
9274 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end);
9276 PIPE_CONF_CHECK_I(pixel_multiplier);
9278 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9279 DRM_MODE_FLAG_INTERLACE);
9281 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) {
9282 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9283 DRM_MODE_FLAG_PHSYNC);
9284 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9285 DRM_MODE_FLAG_NHSYNC);
9286 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9287 DRM_MODE_FLAG_PVSYNC);
9288 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9289 DRM_MODE_FLAG_NVSYNC);
9292 PIPE_CONF_CHECK_I(pipe_src_w);
9293 PIPE_CONF_CHECK_I(pipe_src_h);
9295 PIPE_CONF_CHECK_I(gmch_pfit.control);
9296 /* pfit ratios are autocomputed by the hw on gen4+ */
9297 if (INTEL_INFO(dev)->gen < 4)
9298 PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios);
9299 PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits);
9300 PIPE_CONF_CHECK_I(pch_pfit.enabled);
9301 if (current_config->pch_pfit.enabled) {
9302 PIPE_CONF_CHECK_I(pch_pfit.pos);
9303 PIPE_CONF_CHECK_I(pch_pfit.size);
9306 PIPE_CONF_CHECK_I(ips_enabled);
9308 PIPE_CONF_CHECK_I(double_wide);
9310 PIPE_CONF_CHECK_I(shared_dpll);
9311 PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
9312 PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
9313 PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
9314 PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
9316 if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5)
9317 PIPE_CONF_CHECK_I(pipe_bpp);
9319 if (!IS_HASWELL(dev)) {
9320 PIPE_CONF_CHECK_CLOCK_FUZZY(adjusted_mode.crtc_clock);
9321 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock);
9324 #undef PIPE_CONF_CHECK_X
9325 #undef PIPE_CONF_CHECK_I
9326 #undef PIPE_CONF_CHECK_FLAGS
9327 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
9328 #undef PIPE_CONF_QUIRK
9334 check_connector_state(struct drm_device *dev)
9336 struct intel_connector *connector;
9338 list_for_each_entry(connector, &dev->mode_config.connector_list,
9340 /* This also checks the encoder/connector hw state with the
9341 * ->get_hw_state callbacks. */
9342 intel_connector_check_state(connector);
9344 WARN(&connector->new_encoder->base != connector->base.encoder,
9345 "connector's staged encoder doesn't match current encoder\n");
9350 check_encoder_state(struct drm_device *dev)
9352 struct intel_encoder *encoder;
9353 struct intel_connector *connector;
9355 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9357 bool enabled = false;
9358 bool active = false;
9359 enum pipe pipe, tracked_pipe;
9361 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
9362 encoder->base.base.id,
9363 drm_get_encoder_name(&encoder->base));
9365 WARN(&encoder->new_crtc->base != encoder->base.crtc,
9366 "encoder's stage crtc doesn't match current crtc\n");
9367 WARN(encoder->connectors_active && !encoder->base.crtc,
9368 "encoder's active_connectors set, but no crtc\n");
9370 list_for_each_entry(connector, &dev->mode_config.connector_list,
9372 if (connector->base.encoder != &encoder->base)
9375 if (connector->base.dpms != DRM_MODE_DPMS_OFF)
9378 WARN(!!encoder->base.crtc != enabled,
9379 "encoder's enabled state mismatch "
9380 "(expected %i, found %i)\n",
9381 !!encoder->base.crtc, enabled);
9382 WARN(active && !encoder->base.crtc,
9383 "active encoder with no crtc\n");
9385 WARN(encoder->connectors_active != active,
9386 "encoder's computed active state doesn't match tracked active state "
9387 "(expected %i, found %i)\n", active, encoder->connectors_active);
9389 active = encoder->get_hw_state(encoder, &pipe);
9390 WARN(active != encoder->connectors_active,
9391 "encoder's hw state doesn't match sw tracking "
9392 "(expected %i, found %i)\n",
9393 encoder->connectors_active, active);
9395 if (!encoder->base.crtc)
9398 tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
9399 WARN(active && pipe != tracked_pipe,
9400 "active encoder's pipe doesn't match"
9401 "(expected %i, found %i)\n",
9402 tracked_pipe, pipe);
9408 check_crtc_state(struct drm_device *dev)
9410 drm_i915_private_t *dev_priv = dev->dev_private;
9411 struct intel_crtc *crtc;
9412 struct intel_encoder *encoder;
9413 struct intel_crtc_config pipe_config;
9415 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9417 bool enabled = false;
9418 bool active = false;
9420 memset(&pipe_config, 0, sizeof(pipe_config));
9422 DRM_DEBUG_KMS("[CRTC:%d]\n",
9423 crtc->base.base.id);
9425 WARN(crtc->active && !crtc->base.enabled,
9426 "active crtc, but not enabled in sw tracking\n");
9428 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9430 if (encoder->base.crtc != &crtc->base)
9433 if (encoder->connectors_active)
9437 WARN(active != crtc->active,
9438 "crtc's computed active state doesn't match tracked active state "
9439 "(expected %i, found %i)\n", active, crtc->active);
9440 WARN(enabled != crtc->base.enabled,
9441 "crtc's computed enabled state doesn't match tracked enabled state "
9442 "(expected %i, found %i)\n", enabled, crtc->base.enabled);
9444 active = dev_priv->display.get_pipe_config(crtc,
9447 /* hw state is inconsistent with the pipe A quirk */
9448 if (crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
9449 active = crtc->active;
9451 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9454 if (encoder->base.crtc != &crtc->base)
9456 if (encoder->get_hw_state(encoder, &pipe))
9457 encoder->get_config(encoder, &pipe_config);
9460 WARN(crtc->active != active,
9461 "crtc active state doesn't match with hw state "
9462 "(expected %i, found %i)\n", crtc->active, active);
9465 !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) {
9466 WARN(1, "pipe state doesn't match!\n");
9467 intel_dump_pipe_config(crtc, &pipe_config,
9469 intel_dump_pipe_config(crtc, &crtc->config,
9476 check_shared_dpll_state(struct drm_device *dev)
9478 drm_i915_private_t *dev_priv = dev->dev_private;
9479 struct intel_crtc *crtc;
9480 struct intel_dpll_hw_state dpll_hw_state;
9483 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
9484 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
9485 int enabled_crtcs = 0, active_crtcs = 0;
9488 memset(&dpll_hw_state, 0, sizeof(dpll_hw_state));
9490 DRM_DEBUG_KMS("%s\n", pll->name);
9492 active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state);
9494 WARN(pll->active > pll->refcount,
9495 "more active pll users than references: %i vs %i\n",
9496 pll->active, pll->refcount);
9497 WARN(pll->active && !pll->on,
9498 "pll in active use but not on in sw tracking\n");
9499 WARN(pll->on && !pll->active,
9500 "pll in on but not on in use in sw tracking\n");
9501 WARN(pll->on != active,
9502 "pll on state mismatch (expected %i, found %i)\n",
9505 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9507 if (crtc->base.enabled && intel_crtc_to_shared_dpll(crtc) == pll)
9509 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
9512 WARN(pll->active != active_crtcs,
9513 "pll active crtcs mismatch (expected %i, found %i)\n",
9514 pll->active, active_crtcs);
9515 WARN(pll->refcount != enabled_crtcs,
9516 "pll enabled crtcs mismatch (expected %i, found %i)\n",
9517 pll->refcount, enabled_crtcs);
9519 WARN(pll->on && memcmp(&pll->hw_state, &dpll_hw_state,
9520 sizeof(dpll_hw_state)),
9521 "pll hw state mismatch\n");
9526 intel_modeset_check_state(struct drm_device *dev)
9528 check_connector_state(dev);
9529 check_encoder_state(dev);
9530 check_crtc_state(dev);
9531 check_shared_dpll_state(dev);
9534 void ironlake_check_encoder_dotclock(const struct intel_crtc_config *pipe_config,
9538 * FDI already provided one idea for the dotclock.
9539 * Yell if the encoder disagrees.
9541 WARN(!intel_fuzzy_clock_check(pipe_config->adjusted_mode.crtc_clock, dotclock),
9542 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
9543 pipe_config->adjusted_mode.crtc_clock, dotclock);
9546 static int __intel_set_mode(struct drm_crtc *crtc,
9547 struct drm_display_mode *mode,
9548 int x, int y, struct drm_framebuffer *fb)
9550 struct drm_device *dev = crtc->dev;
9551 drm_i915_private_t *dev_priv = dev->dev_private;
9552 struct drm_display_mode *saved_mode, *saved_hwmode;
9553 struct intel_crtc_config *pipe_config = NULL;
9554 struct intel_crtc *intel_crtc;
9555 unsigned disable_pipes, prepare_pipes, modeset_pipes;
9558 saved_mode = kcalloc(2, sizeof(*saved_mode), GFP_KERNEL);
9561 saved_hwmode = saved_mode + 1;
9563 intel_modeset_affected_pipes(crtc, &modeset_pipes,
9564 &prepare_pipes, &disable_pipes);
9566 *saved_hwmode = crtc->hwmode;
9567 *saved_mode = crtc->mode;
9569 /* Hack: Because we don't (yet) support global modeset on multiple
9570 * crtcs, we don't keep track of the new mode for more than one crtc.
9571 * Hence simply check whether any bit is set in modeset_pipes in all the
9572 * pieces of code that are not yet converted to deal with mutliple crtcs
9573 * changing their mode at the same time. */
9574 if (modeset_pipes) {
9575 pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
9576 if (IS_ERR(pipe_config)) {
9577 ret = PTR_ERR(pipe_config);
9582 intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config,
9587 * See if the config requires any additional preparation, e.g.
9588 * to adjust global state with pipes off. We need to do this
9589 * here so we can get the modeset_pipe updated config for the new
9590 * mode set on this crtc. For other crtcs we need to use the
9591 * adjusted_mode bits in the crtc directly.
9593 if (IS_VALLEYVIEW(dev)) {
9594 valleyview_modeset_global_pipes(dev, &prepare_pipes,
9595 modeset_pipes, pipe_config);
9597 /* may have added more to prepare_pipes than we should */
9598 prepare_pipes &= ~disable_pipes;
9601 for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
9602 intel_crtc_disable(&intel_crtc->base);
9604 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
9605 if (intel_crtc->base.enabled)
9606 dev_priv->display.crtc_disable(&intel_crtc->base);
9609 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
9610 * to set it here already despite that we pass it down the callchain.
9612 if (modeset_pipes) {
9614 /* mode_set/enable/disable functions rely on a correct pipe
9616 to_intel_crtc(crtc)->config = *pipe_config;
9619 /* Only after disabling all output pipelines that will be changed can we
9620 * update the the output configuration. */
9621 intel_modeset_update_state(dev, prepare_pipes);
9623 if (dev_priv->display.modeset_global_resources)
9624 dev_priv->display.modeset_global_resources(dev);
9626 /* Set up the DPLL and any encoders state that needs to adjust or depend
9629 for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
9630 ret = intel_crtc_mode_set(&intel_crtc->base,
9636 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
9637 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
9638 dev_priv->display.crtc_enable(&intel_crtc->base);
9640 if (modeset_pipes) {
9641 /* Store real post-adjustment hardware mode. */
9642 crtc->hwmode = pipe_config->adjusted_mode;
9644 /* Calculate and store various constants which
9645 * are later needed by vblank and swap-completion
9646 * timestamping. They are derived from true hwmode.
9648 drm_calc_timestamping_constants(crtc);
9651 /* FIXME: add subpixel order */
9653 if (ret && crtc->enabled) {
9654 crtc->hwmode = *saved_hwmode;
9655 crtc->mode = *saved_mode;
9664 static int intel_set_mode(struct drm_crtc *crtc,
9665 struct drm_display_mode *mode,
9666 int x, int y, struct drm_framebuffer *fb)
9670 ret = __intel_set_mode(crtc, mode, x, y, fb);
9673 intel_modeset_check_state(crtc->dev);
9678 void intel_crtc_restore_mode(struct drm_crtc *crtc)
9680 intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb);
9683 #undef for_each_intel_crtc_masked
9685 static void intel_set_config_free(struct intel_set_config *config)
9690 kfree(config->save_connector_encoders);
9691 kfree(config->save_encoder_crtcs);
9695 static int intel_set_config_save_state(struct drm_device *dev,
9696 struct intel_set_config *config)
9698 struct drm_encoder *encoder;
9699 struct drm_connector *connector;
9702 config->save_encoder_crtcs =
9703 kcalloc(dev->mode_config.num_encoder,
9704 sizeof(struct drm_crtc *), GFP_KERNEL);
9705 if (!config->save_encoder_crtcs)
9708 config->save_connector_encoders =
9709 kcalloc(dev->mode_config.num_connector,
9710 sizeof(struct drm_encoder *), GFP_KERNEL);
9711 if (!config->save_connector_encoders)
9714 /* Copy data. Note that driver private data is not affected.
9715 * Should anything bad happen only the expected state is
9716 * restored, not the drivers personal bookkeeping.
9719 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
9720 config->save_encoder_crtcs[count++] = encoder->crtc;
9724 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
9725 config->save_connector_encoders[count++] = connector->encoder;
9731 static void intel_set_config_restore_state(struct drm_device *dev,
9732 struct intel_set_config *config)
9734 struct intel_encoder *encoder;
9735 struct intel_connector *connector;
9739 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
9741 to_intel_crtc(config->save_encoder_crtcs[count++]);
9745 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
9746 connector->new_encoder =
9747 to_intel_encoder(config->save_connector_encoders[count++]);
9752 is_crtc_connector_off(struct drm_mode_set *set)
9756 if (set->num_connectors == 0)
9759 if (WARN_ON(set->connectors == NULL))
9762 for (i = 0; i < set->num_connectors; i++)
9763 if (set->connectors[i]->encoder &&
9764 set->connectors[i]->encoder->crtc == set->crtc &&
9765 set->connectors[i]->dpms != DRM_MODE_DPMS_ON)
9772 intel_set_config_compute_mode_changes(struct drm_mode_set *set,
9773 struct intel_set_config *config)
9776 /* We should be able to check here if the fb has the same properties
9777 * and then just flip_or_move it */
9778 if (is_crtc_connector_off(set)) {
9779 config->mode_changed = true;
9780 } else if (set->crtc->fb != set->fb) {
9781 /* If we have no fb then treat it as a full mode set */
9782 if (set->crtc->fb == NULL) {
9783 struct intel_crtc *intel_crtc =
9784 to_intel_crtc(set->crtc);
9786 if (intel_crtc->active && i915_fastboot) {
9787 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
9788 config->fb_changed = true;
9790 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
9791 config->mode_changed = true;
9793 } else if (set->fb == NULL) {
9794 config->mode_changed = true;
9795 } else if (set->fb->pixel_format !=
9796 set->crtc->fb->pixel_format) {
9797 config->mode_changed = true;
9799 config->fb_changed = true;
9803 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
9804 config->fb_changed = true;
9806 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
9807 DRM_DEBUG_KMS("modes are different, full mode set\n");
9808 drm_mode_debug_printmodeline(&set->crtc->mode);
9809 drm_mode_debug_printmodeline(set->mode);
9810 config->mode_changed = true;
9813 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
9814 set->crtc->base.id, config->mode_changed, config->fb_changed);
9818 intel_modeset_stage_output_state(struct drm_device *dev,
9819 struct drm_mode_set *set,
9820 struct intel_set_config *config)
9822 struct drm_crtc *new_crtc;
9823 struct intel_connector *connector;
9824 struct intel_encoder *encoder;
9827 /* The upper layers ensure that we either disable a crtc or have a list
9828 * of connectors. For paranoia, double-check this. */
9829 WARN_ON(!set->fb && (set->num_connectors != 0));
9830 WARN_ON(set->fb && (set->num_connectors == 0));
9832 list_for_each_entry(connector, &dev->mode_config.connector_list,
9834 /* Otherwise traverse passed in connector list and get encoders
9836 for (ro = 0; ro < set->num_connectors; ro++) {
9837 if (set->connectors[ro] == &connector->base) {
9838 connector->new_encoder = connector->encoder;
9843 /* If we disable the crtc, disable all its connectors. Also, if
9844 * the connector is on the changing crtc but not on the new
9845 * connector list, disable it. */
9846 if ((!set->fb || ro == set->num_connectors) &&
9847 connector->base.encoder &&
9848 connector->base.encoder->crtc == set->crtc) {
9849 connector->new_encoder = NULL;
9851 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
9852 connector->base.base.id,
9853 drm_get_connector_name(&connector->base));
9857 if (&connector->new_encoder->base != connector->base.encoder) {
9858 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
9859 config->mode_changed = true;
9862 /* connector->new_encoder is now updated for all connectors. */
9864 /* Update crtc of enabled connectors. */
9865 list_for_each_entry(connector, &dev->mode_config.connector_list,
9867 if (!connector->new_encoder)
9870 new_crtc = connector->new_encoder->base.crtc;
9872 for (ro = 0; ro < set->num_connectors; ro++) {
9873 if (set->connectors[ro] == &connector->base)
9874 new_crtc = set->crtc;
9877 /* Make sure the new CRTC will work with the encoder */
9878 if (!intel_encoder_crtc_ok(&connector->new_encoder->base,
9882 connector->encoder->new_crtc = to_intel_crtc(new_crtc);
9884 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
9885 connector->base.base.id,
9886 drm_get_connector_name(&connector->base),
9890 /* Check for any encoders that needs to be disabled. */
9891 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9893 list_for_each_entry(connector,
9894 &dev->mode_config.connector_list,
9896 if (connector->new_encoder == encoder) {
9897 WARN_ON(!connector->new_encoder->new_crtc);
9902 encoder->new_crtc = NULL;
9904 /* Only now check for crtc changes so we don't miss encoders
9905 * that will be disabled. */
9906 if (&encoder->new_crtc->base != encoder->base.crtc) {
9907 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
9908 config->mode_changed = true;
9911 /* Now we've also updated encoder->new_crtc for all encoders. */
9916 static int intel_crtc_set_config(struct drm_mode_set *set)
9918 struct drm_device *dev;
9919 struct drm_mode_set save_set;
9920 struct intel_set_config *config;
9925 BUG_ON(!set->crtc->helper_private);
9927 /* Enforce sane interface api - has been abused by the fb helper. */
9928 BUG_ON(!set->mode && set->fb);
9929 BUG_ON(set->fb && set->num_connectors == 0);
9932 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
9933 set->crtc->base.id, set->fb->base.id,
9934 (int)set->num_connectors, set->x, set->y);
9936 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
9939 dev = set->crtc->dev;
9942 config = kzalloc(sizeof(*config), GFP_KERNEL);
9946 ret = intel_set_config_save_state(dev, config);
9950 save_set.crtc = set->crtc;
9951 save_set.mode = &set->crtc->mode;
9952 save_set.x = set->crtc->x;
9953 save_set.y = set->crtc->y;
9954 save_set.fb = set->crtc->fb;
9956 /* Compute whether we need a full modeset, only an fb base update or no
9957 * change at all. In the future we might also check whether only the
9958 * mode changed, e.g. for LVDS where we only change the panel fitter in
9960 intel_set_config_compute_mode_changes(set, config);
9962 ret = intel_modeset_stage_output_state(dev, set, config);
9966 if (config->mode_changed) {
9967 ret = intel_set_mode(set->crtc, set->mode,
9968 set->x, set->y, set->fb);
9969 } else if (config->fb_changed) {
9970 intel_crtc_wait_for_pending_flips(set->crtc);
9972 ret = intel_pipe_set_base(set->crtc,
9973 set->x, set->y, set->fb);
9977 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
9978 set->crtc->base.id, ret);
9980 intel_set_config_restore_state(dev, config);
9982 /* Try to restore the config */
9983 if (config->mode_changed &&
9984 intel_set_mode(save_set.crtc, save_set.mode,
9985 save_set.x, save_set.y, save_set.fb))
9986 DRM_ERROR("failed to restore config after modeset failure\n");
9990 intel_set_config_free(config);
9994 static const struct drm_crtc_funcs intel_crtc_funcs = {
9995 .cursor_set = intel_crtc_cursor_set,
9996 .cursor_move = intel_crtc_cursor_move,
9997 .gamma_set = intel_crtc_gamma_set,
9998 .set_config = intel_crtc_set_config,
9999 .destroy = intel_crtc_destroy,
10000 .page_flip = intel_crtc_page_flip,
10003 static void intel_cpu_pll_init(struct drm_device *dev)
10006 intel_ddi_pll_init(dev);
10009 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv,
10010 struct intel_shared_dpll *pll,
10011 struct intel_dpll_hw_state *hw_state)
10015 val = I915_READ(PCH_DPLL(pll->id));
10016 hw_state->dpll = val;
10017 hw_state->fp0 = I915_READ(PCH_FP0(pll->id));
10018 hw_state->fp1 = I915_READ(PCH_FP1(pll->id));
10020 return val & DPLL_VCO_ENABLE;
10023 static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv,
10024 struct intel_shared_dpll *pll)
10026 I915_WRITE(PCH_FP0(pll->id), pll->hw_state.fp0);
10027 I915_WRITE(PCH_FP1(pll->id), pll->hw_state.fp1);
10030 static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv,
10031 struct intel_shared_dpll *pll)
10033 /* PCH refclock must be enabled first */
10034 assert_pch_refclk_enabled(dev_priv);
10036 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
10038 /* Wait for the clocks to stabilize. */
10039 POSTING_READ(PCH_DPLL(pll->id));
10042 /* The pixel multiplier can only be updated once the
10043 * DPLL is enabled and the clocks are stable.
10045 * So write it again.
10047 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
10048 POSTING_READ(PCH_DPLL(pll->id));
10052 static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv,
10053 struct intel_shared_dpll *pll)
10055 struct drm_device *dev = dev_priv->dev;
10056 struct intel_crtc *crtc;
10058 /* Make sure no transcoder isn't still depending on us. */
10059 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
10060 if (intel_crtc_to_shared_dpll(crtc) == pll)
10061 assert_pch_transcoder_disabled(dev_priv, crtc->pipe);
10064 I915_WRITE(PCH_DPLL(pll->id), 0);
10065 POSTING_READ(PCH_DPLL(pll->id));
10069 static char *ibx_pch_dpll_names[] = {
10074 static void ibx_pch_dpll_init(struct drm_device *dev)
10076 struct drm_i915_private *dev_priv = dev->dev_private;
10079 dev_priv->num_shared_dpll = 2;
10081 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
10082 dev_priv->shared_dplls[i].id = i;
10083 dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i];
10084 dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set;
10085 dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable;
10086 dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable;
10087 dev_priv->shared_dplls[i].get_hw_state =
10088 ibx_pch_dpll_get_hw_state;
10092 static void intel_shared_dpll_init(struct drm_device *dev)
10094 struct drm_i915_private *dev_priv = dev->dev_private;
10096 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
10097 ibx_pch_dpll_init(dev);
10099 dev_priv->num_shared_dpll = 0;
10101 BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS);
10102 DRM_DEBUG_KMS("%i shared PLLs initialized\n",
10103 dev_priv->num_shared_dpll);
10106 static void intel_crtc_init(struct drm_device *dev, int pipe)
10108 drm_i915_private_t *dev_priv = dev->dev_private;
10109 struct intel_crtc *intel_crtc;
10112 intel_crtc = kzalloc(sizeof(*intel_crtc), GFP_KERNEL);
10113 if (intel_crtc == NULL)
10116 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
10118 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
10119 for (i = 0; i < 256; i++) {
10120 intel_crtc->lut_r[i] = i;
10121 intel_crtc->lut_g[i] = i;
10122 intel_crtc->lut_b[i] = i;
10125 /* Swap pipes & planes for FBC on pre-965 */
10126 intel_crtc->pipe = pipe;
10127 intel_crtc->plane = pipe;
10128 if (IS_MOBILE(dev) && IS_GEN3(dev)) {
10129 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
10130 intel_crtc->plane = !pipe;
10133 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
10134 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
10135 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
10136 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
10138 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
10141 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector)
10143 struct drm_encoder *encoder = connector->base.encoder;
10145 WARN_ON(!mutex_is_locked(&connector->base.dev->mode_config.mutex));
10148 return INVALID_PIPE;
10150 return to_intel_crtc(encoder->crtc)->pipe;
10153 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
10154 struct drm_file *file)
10156 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
10157 struct drm_mode_object *drmmode_obj;
10158 struct intel_crtc *crtc;
10160 if (!drm_core_check_feature(dev, DRIVER_MODESET))
10163 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
10164 DRM_MODE_OBJECT_CRTC);
10166 if (!drmmode_obj) {
10167 DRM_ERROR("no such CRTC id\n");
10171 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
10172 pipe_from_crtc_id->pipe = crtc->pipe;
10177 static int intel_encoder_clones(struct intel_encoder *encoder)
10179 struct drm_device *dev = encoder->base.dev;
10180 struct intel_encoder *source_encoder;
10181 int index_mask = 0;
10184 list_for_each_entry(source_encoder,
10185 &dev->mode_config.encoder_list, base.head) {
10187 if (encoder == source_encoder)
10188 index_mask |= (1 << entry);
10190 /* Intel hw has only one MUX where enocoders could be cloned. */
10191 if (encoder->cloneable && source_encoder->cloneable)
10192 index_mask |= (1 << entry);
10200 static bool has_edp_a(struct drm_device *dev)
10202 struct drm_i915_private *dev_priv = dev->dev_private;
10204 if (!IS_MOBILE(dev))
10207 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
10210 if (IS_GEN5(dev) &&
10211 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
10217 static void intel_setup_outputs(struct drm_device *dev)
10219 struct drm_i915_private *dev_priv = dev->dev_private;
10220 struct intel_encoder *encoder;
10221 bool dpd_is_edp = false;
10223 intel_lvds_init(dev);
10226 intel_crt_init(dev);
10228 if (HAS_DDI(dev)) {
10231 /* Haswell uses DDI functions to detect digital outputs */
10232 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
10233 /* DDI A only supports eDP */
10235 intel_ddi_init(dev, PORT_A);
10237 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
10239 found = I915_READ(SFUSE_STRAP);
10241 if (found & SFUSE_STRAP_DDIB_DETECTED)
10242 intel_ddi_init(dev, PORT_B);
10243 if (found & SFUSE_STRAP_DDIC_DETECTED)
10244 intel_ddi_init(dev, PORT_C);
10245 if (found & SFUSE_STRAP_DDID_DETECTED)
10246 intel_ddi_init(dev, PORT_D);
10247 } else if (HAS_PCH_SPLIT(dev)) {
10249 dpd_is_edp = intel_dp_is_edp(dev, PORT_D);
10251 if (has_edp_a(dev))
10252 intel_dp_init(dev, DP_A, PORT_A);
10254 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
10255 /* PCH SDVOB multiplex with HDMIB */
10256 found = intel_sdvo_init(dev, PCH_SDVOB, true);
10258 intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
10259 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
10260 intel_dp_init(dev, PCH_DP_B, PORT_B);
10263 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
10264 intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
10266 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
10267 intel_hdmi_init(dev, PCH_HDMID, PORT_D);
10269 if (I915_READ(PCH_DP_C) & DP_DETECTED)
10270 intel_dp_init(dev, PCH_DP_C, PORT_C);
10272 if (I915_READ(PCH_DP_D) & DP_DETECTED)
10273 intel_dp_init(dev, PCH_DP_D, PORT_D);
10274 } else if (IS_VALLEYVIEW(dev)) {
10275 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
10276 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
10278 if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
10279 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
10282 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED) {
10283 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC,
10285 if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
10286 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C);
10289 intel_dsi_init(dev);
10290 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
10291 bool found = false;
10293 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
10294 DRM_DEBUG_KMS("probing SDVOB\n");
10295 found = intel_sdvo_init(dev, GEN3_SDVOB, true);
10296 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
10297 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
10298 intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
10301 if (!found && SUPPORTS_INTEGRATED_DP(dev))
10302 intel_dp_init(dev, DP_B, PORT_B);
10305 /* Before G4X SDVOC doesn't have its own detect register */
10307 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
10308 DRM_DEBUG_KMS("probing SDVOC\n");
10309 found = intel_sdvo_init(dev, GEN3_SDVOC, false);
10312 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
10314 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
10315 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
10316 intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
10318 if (SUPPORTS_INTEGRATED_DP(dev))
10319 intel_dp_init(dev, DP_C, PORT_C);
10322 if (SUPPORTS_INTEGRATED_DP(dev) &&
10323 (I915_READ(DP_D) & DP_DETECTED))
10324 intel_dp_init(dev, DP_D, PORT_D);
10325 } else if (IS_GEN2(dev))
10326 intel_dvo_init(dev);
10328 if (SUPPORTS_TV(dev))
10329 intel_tv_init(dev);
10331 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
10332 encoder->base.possible_crtcs = encoder->crtc_mask;
10333 encoder->base.possible_clones =
10334 intel_encoder_clones(encoder);
10337 intel_init_pch_refclk(dev);
10339 drm_helper_move_panel_connectors_to_head(dev);
10342 void intel_framebuffer_fini(struct intel_framebuffer *fb)
10344 drm_framebuffer_cleanup(&fb->base);
10345 WARN_ON(!fb->obj->framebuffer_references--);
10346 drm_gem_object_unreference_unlocked(&fb->obj->base);
10349 static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
10351 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
10353 intel_framebuffer_fini(intel_fb);
10357 static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
10358 struct drm_file *file,
10359 unsigned int *handle)
10361 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
10362 struct drm_i915_gem_object *obj = intel_fb->obj;
10364 return drm_gem_handle_create(file, &obj->base, handle);
10367 static const struct drm_framebuffer_funcs intel_fb_funcs = {
10368 .destroy = intel_user_framebuffer_destroy,
10369 .create_handle = intel_user_framebuffer_create_handle,
10372 int intel_framebuffer_init(struct drm_device *dev,
10373 struct intel_framebuffer *intel_fb,
10374 struct drm_mode_fb_cmd2 *mode_cmd,
10375 struct drm_i915_gem_object *obj)
10377 int aligned_height, tile_height;
10381 WARN_ON(!mutex_is_locked(&dev->struct_mutex));
10383 if (obj->tiling_mode == I915_TILING_Y) {
10384 DRM_DEBUG("hardware does not support tiling Y\n");
10388 if (mode_cmd->pitches[0] & 63) {
10389 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
10390 mode_cmd->pitches[0]);
10394 if (INTEL_INFO(dev)->gen >= 5 && !IS_VALLEYVIEW(dev)) {
10395 pitch_limit = 32*1024;
10396 } else if (INTEL_INFO(dev)->gen >= 4) {
10397 if (obj->tiling_mode)
10398 pitch_limit = 16*1024;
10400 pitch_limit = 32*1024;
10401 } else if (INTEL_INFO(dev)->gen >= 3) {
10402 if (obj->tiling_mode)
10403 pitch_limit = 8*1024;
10405 pitch_limit = 16*1024;
10407 /* XXX DSPC is limited to 4k tiled */
10408 pitch_limit = 8*1024;
10410 if (mode_cmd->pitches[0] > pitch_limit) {
10411 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
10412 obj->tiling_mode ? "tiled" : "linear",
10413 mode_cmd->pitches[0], pitch_limit);
10417 if (obj->tiling_mode != I915_TILING_NONE &&
10418 mode_cmd->pitches[0] != obj->stride) {
10419 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
10420 mode_cmd->pitches[0], obj->stride);
10424 /* Reject formats not supported by any plane early. */
10425 switch (mode_cmd->pixel_format) {
10426 case DRM_FORMAT_C8:
10427 case DRM_FORMAT_RGB565:
10428 case DRM_FORMAT_XRGB8888:
10429 case DRM_FORMAT_ARGB8888:
10431 case DRM_FORMAT_XRGB1555:
10432 case DRM_FORMAT_ARGB1555:
10433 if (INTEL_INFO(dev)->gen > 3) {
10434 DRM_DEBUG("unsupported pixel format: %s\n",
10435 drm_get_format_name(mode_cmd->pixel_format));
10439 case DRM_FORMAT_XBGR8888:
10440 case DRM_FORMAT_ABGR8888:
10441 case DRM_FORMAT_XRGB2101010:
10442 case DRM_FORMAT_ARGB2101010:
10443 case DRM_FORMAT_XBGR2101010:
10444 case DRM_FORMAT_ABGR2101010:
10445 if (INTEL_INFO(dev)->gen < 4) {
10446 DRM_DEBUG("unsupported pixel format: %s\n",
10447 drm_get_format_name(mode_cmd->pixel_format));
10451 case DRM_FORMAT_YUYV:
10452 case DRM_FORMAT_UYVY:
10453 case DRM_FORMAT_YVYU:
10454 case DRM_FORMAT_VYUY:
10455 if (INTEL_INFO(dev)->gen < 5) {
10456 DRM_DEBUG("unsupported pixel format: %s\n",
10457 drm_get_format_name(mode_cmd->pixel_format));
10462 DRM_DEBUG("unsupported pixel format: %s\n",
10463 drm_get_format_name(mode_cmd->pixel_format));
10467 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
10468 if (mode_cmd->offsets[0] != 0)
10471 tile_height = IS_GEN2(dev) ? 16 : 8;
10472 aligned_height = ALIGN(mode_cmd->height,
10473 obj->tiling_mode ? tile_height : 1);
10474 /* FIXME drm helper for size checks (especially planar formats)? */
10475 if (obj->base.size < aligned_height * mode_cmd->pitches[0])
10478 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
10479 intel_fb->obj = obj;
10480 intel_fb->obj->framebuffer_references++;
10482 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
10484 DRM_ERROR("framebuffer init failed %d\n", ret);
10491 static struct drm_framebuffer *
10492 intel_user_framebuffer_create(struct drm_device *dev,
10493 struct drm_file *filp,
10494 struct drm_mode_fb_cmd2 *mode_cmd)
10496 struct drm_i915_gem_object *obj;
10498 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
10499 mode_cmd->handles[0]));
10500 if (&obj->base == NULL)
10501 return ERR_PTR(-ENOENT);
10503 return intel_framebuffer_create(dev, mode_cmd, obj);
10506 #ifndef CONFIG_DRM_I915_FBDEV
10507 static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
10512 static const struct drm_mode_config_funcs intel_mode_funcs = {
10513 .fb_create = intel_user_framebuffer_create,
10514 .output_poll_changed = intel_fbdev_output_poll_changed,
10517 /* Set up chip specific display functions */
10518 static void intel_init_display(struct drm_device *dev)
10520 struct drm_i915_private *dev_priv = dev->dev_private;
10522 if (HAS_PCH_SPLIT(dev) || IS_G4X(dev))
10523 dev_priv->display.find_dpll = g4x_find_best_dpll;
10524 else if (IS_VALLEYVIEW(dev))
10525 dev_priv->display.find_dpll = vlv_find_best_dpll;
10526 else if (IS_PINEVIEW(dev))
10527 dev_priv->display.find_dpll = pnv_find_best_dpll;
10529 dev_priv->display.find_dpll = i9xx_find_best_dpll;
10531 if (HAS_DDI(dev)) {
10532 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
10533 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
10534 dev_priv->display.crtc_enable = haswell_crtc_enable;
10535 dev_priv->display.crtc_disable = haswell_crtc_disable;
10536 dev_priv->display.off = haswell_crtc_off;
10537 dev_priv->display.update_plane = ironlake_update_plane;
10538 } else if (HAS_PCH_SPLIT(dev)) {
10539 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
10540 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
10541 dev_priv->display.crtc_enable = ironlake_crtc_enable;
10542 dev_priv->display.crtc_disable = ironlake_crtc_disable;
10543 dev_priv->display.off = ironlake_crtc_off;
10544 dev_priv->display.update_plane = ironlake_update_plane;
10545 } else if (IS_VALLEYVIEW(dev)) {
10546 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
10547 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
10548 dev_priv->display.crtc_enable = valleyview_crtc_enable;
10549 dev_priv->display.crtc_disable = i9xx_crtc_disable;
10550 dev_priv->display.off = i9xx_crtc_off;
10551 dev_priv->display.update_plane = i9xx_update_plane;
10553 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
10554 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
10555 dev_priv->display.crtc_enable = i9xx_crtc_enable;
10556 dev_priv->display.crtc_disable = i9xx_crtc_disable;
10557 dev_priv->display.off = i9xx_crtc_off;
10558 dev_priv->display.update_plane = i9xx_update_plane;
10561 /* Returns the core display clock speed */
10562 if (IS_VALLEYVIEW(dev))
10563 dev_priv->display.get_display_clock_speed =
10564 valleyview_get_display_clock_speed;
10565 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
10566 dev_priv->display.get_display_clock_speed =
10567 i945_get_display_clock_speed;
10568 else if (IS_I915G(dev))
10569 dev_priv->display.get_display_clock_speed =
10570 i915_get_display_clock_speed;
10571 else if (IS_I945GM(dev) || IS_845G(dev))
10572 dev_priv->display.get_display_clock_speed =
10573 i9xx_misc_get_display_clock_speed;
10574 else if (IS_PINEVIEW(dev))
10575 dev_priv->display.get_display_clock_speed =
10576 pnv_get_display_clock_speed;
10577 else if (IS_I915GM(dev))
10578 dev_priv->display.get_display_clock_speed =
10579 i915gm_get_display_clock_speed;
10580 else if (IS_I865G(dev))
10581 dev_priv->display.get_display_clock_speed =
10582 i865_get_display_clock_speed;
10583 else if (IS_I85X(dev))
10584 dev_priv->display.get_display_clock_speed =
10585 i855_get_display_clock_speed;
10586 else /* 852, 830 */
10587 dev_priv->display.get_display_clock_speed =
10588 i830_get_display_clock_speed;
10590 if (HAS_PCH_SPLIT(dev)) {
10591 if (IS_GEN5(dev)) {
10592 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
10593 dev_priv->display.write_eld = ironlake_write_eld;
10594 } else if (IS_GEN6(dev)) {
10595 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
10596 dev_priv->display.write_eld = ironlake_write_eld;
10597 } else if (IS_IVYBRIDGE(dev)) {
10598 /* FIXME: detect B0+ stepping and use auto training */
10599 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
10600 dev_priv->display.write_eld = ironlake_write_eld;
10601 dev_priv->display.modeset_global_resources =
10602 ivb_modeset_global_resources;
10603 } else if (IS_HASWELL(dev) || IS_GEN8(dev)) {
10604 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
10605 dev_priv->display.write_eld = haswell_write_eld;
10606 dev_priv->display.modeset_global_resources =
10607 haswell_modeset_global_resources;
10609 } else if (IS_G4X(dev)) {
10610 dev_priv->display.write_eld = g4x_write_eld;
10611 } else if (IS_VALLEYVIEW(dev)) {
10612 dev_priv->display.modeset_global_resources =
10613 valleyview_modeset_global_resources;
10614 dev_priv->display.write_eld = ironlake_write_eld;
10617 /* Default just returns -ENODEV to indicate unsupported */
10618 dev_priv->display.queue_flip = intel_default_queue_flip;
10620 switch (INTEL_INFO(dev)->gen) {
10622 dev_priv->display.queue_flip = intel_gen2_queue_flip;
10626 dev_priv->display.queue_flip = intel_gen3_queue_flip;
10631 dev_priv->display.queue_flip = intel_gen4_queue_flip;
10635 dev_priv->display.queue_flip = intel_gen6_queue_flip;
10638 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
10639 dev_priv->display.queue_flip = intel_gen7_queue_flip;
10643 intel_panel_init_backlight_funcs(dev);
10647 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
10648 * resume, or other times. This quirk makes sure that's the case for
10649 * affected systems.
10651 static void quirk_pipea_force(struct drm_device *dev)
10653 struct drm_i915_private *dev_priv = dev->dev_private;
10655 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
10656 DRM_INFO("applying pipe a force quirk\n");
10660 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
10662 static void quirk_ssc_force_disable(struct drm_device *dev)
10664 struct drm_i915_private *dev_priv = dev->dev_private;
10665 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
10666 DRM_INFO("applying lvds SSC disable quirk\n");
10670 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
10673 static void quirk_invert_brightness(struct drm_device *dev)
10675 struct drm_i915_private *dev_priv = dev->dev_private;
10676 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
10677 DRM_INFO("applying inverted panel brightness quirk\n");
10680 struct intel_quirk {
10682 int subsystem_vendor;
10683 int subsystem_device;
10684 void (*hook)(struct drm_device *dev);
10687 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
10688 struct intel_dmi_quirk {
10689 void (*hook)(struct drm_device *dev);
10690 const struct dmi_system_id (*dmi_id_list)[];
10693 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
10695 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
10699 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
10701 .dmi_id_list = &(const struct dmi_system_id[]) {
10703 .callback = intel_dmi_reverse_brightness,
10704 .ident = "NCR Corporation",
10705 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
10706 DMI_MATCH(DMI_PRODUCT_NAME, ""),
10709 { } /* terminating entry */
10711 .hook = quirk_invert_brightness,
10715 static struct intel_quirk intel_quirks[] = {
10716 /* HP Mini needs pipe A force quirk (LP: #322104) */
10717 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
10719 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
10720 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
10722 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
10723 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
10725 /* 830 needs to leave pipe A & dpll A up */
10726 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
10728 /* Lenovo U160 cannot use SSC on LVDS */
10729 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
10731 /* Sony Vaio Y cannot use SSC on LVDS */
10732 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
10735 * All GM45 Acer (and its brands eMachines and Packard Bell) laptops
10736 * seem to use inverted backlight PWM.
10738 { 0x2a42, 0x1025, PCI_ANY_ID, quirk_invert_brightness },
10741 static void intel_init_quirks(struct drm_device *dev)
10743 struct pci_dev *d = dev->pdev;
10746 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
10747 struct intel_quirk *q = &intel_quirks[i];
10749 if (d->device == q->device &&
10750 (d->subsystem_vendor == q->subsystem_vendor ||
10751 q->subsystem_vendor == PCI_ANY_ID) &&
10752 (d->subsystem_device == q->subsystem_device ||
10753 q->subsystem_device == PCI_ANY_ID))
10756 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
10757 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
10758 intel_dmi_quirks[i].hook(dev);
10762 /* Disable the VGA plane that we never use */
10763 static void i915_disable_vga(struct drm_device *dev)
10765 struct drm_i915_private *dev_priv = dev->dev_private;
10767 u32 vga_reg = i915_vgacntrl_reg(dev);
10769 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
10770 outb(SR01, VGA_SR_INDEX);
10771 sr1 = inb(VGA_SR_DATA);
10772 outb(sr1 | 1<<5, VGA_SR_DATA);
10773 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10776 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
10777 POSTING_READ(vga_reg);
10780 void intel_modeset_init_hw(struct drm_device *dev)
10782 struct drm_i915_private *dev_priv = dev->dev_private;
10784 intel_prepare_ddi(dev);
10786 intel_init_clock_gating(dev);
10788 /* Enable the CRI clock source so we can get at the display */
10789 if (IS_VALLEYVIEW(dev))
10790 I915_WRITE(DPLL(PIPE_B), I915_READ(DPLL(PIPE_B)) |
10791 DPLL_INTEGRATED_CRI_CLK_VLV);
10793 intel_init_dpio(dev);
10795 mutex_lock(&dev->struct_mutex);
10796 intel_enable_gt_powersave(dev);
10797 mutex_unlock(&dev->struct_mutex);
10800 void intel_modeset_suspend_hw(struct drm_device *dev)
10802 intel_suspend_hw(dev);
10805 void intel_modeset_init(struct drm_device *dev)
10807 struct drm_i915_private *dev_priv = dev->dev_private;
10810 drm_mode_config_init(dev);
10812 dev->mode_config.min_width = 0;
10813 dev->mode_config.min_height = 0;
10815 dev->mode_config.preferred_depth = 24;
10816 dev->mode_config.prefer_shadow = 1;
10818 dev->mode_config.funcs = &intel_mode_funcs;
10820 intel_init_quirks(dev);
10822 intel_init_pm(dev);
10824 if (INTEL_INFO(dev)->num_pipes == 0)
10827 intel_init_display(dev);
10829 if (IS_GEN2(dev)) {
10830 dev->mode_config.max_width = 2048;
10831 dev->mode_config.max_height = 2048;
10832 } else if (IS_GEN3(dev)) {
10833 dev->mode_config.max_width = 4096;
10834 dev->mode_config.max_height = 4096;
10836 dev->mode_config.max_width = 8192;
10837 dev->mode_config.max_height = 8192;
10839 dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
10841 DRM_DEBUG_KMS("%d display pipe%s available.\n",
10842 INTEL_INFO(dev)->num_pipes,
10843 INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
10846 intel_crtc_init(dev, i);
10847 for (j = 0; j < dev_priv->num_plane; j++) {
10848 ret = intel_plane_init(dev, i, j);
10850 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
10851 pipe_name(i), sprite_name(i, j), ret);
10855 intel_cpu_pll_init(dev);
10856 intel_shared_dpll_init(dev);
10858 /* Just disable it once at startup */
10859 i915_disable_vga(dev);
10860 intel_setup_outputs(dev);
10862 /* Just in case the BIOS is doing something questionable. */
10863 intel_disable_fbc(dev);
10867 intel_connector_break_all_links(struct intel_connector *connector)
10869 connector->base.dpms = DRM_MODE_DPMS_OFF;
10870 connector->base.encoder = NULL;
10871 connector->encoder->connectors_active = false;
10872 connector->encoder->base.crtc = NULL;
10875 static void intel_enable_pipe_a(struct drm_device *dev)
10877 struct intel_connector *connector;
10878 struct drm_connector *crt = NULL;
10879 struct intel_load_detect_pipe load_detect_temp;
10881 /* We can't just switch on the pipe A, we need to set things up with a
10882 * proper mode and output configuration. As a gross hack, enable pipe A
10883 * by enabling the load detect pipe once. */
10884 list_for_each_entry(connector,
10885 &dev->mode_config.connector_list,
10887 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
10888 crt = &connector->base;
10896 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
10897 intel_release_load_detect_pipe(crt, &load_detect_temp);
10903 intel_check_plane_mapping(struct intel_crtc *crtc)
10905 struct drm_device *dev = crtc->base.dev;
10906 struct drm_i915_private *dev_priv = dev->dev_private;
10909 if (INTEL_INFO(dev)->num_pipes == 1)
10912 reg = DSPCNTR(!crtc->plane);
10913 val = I915_READ(reg);
10915 if ((val & DISPLAY_PLANE_ENABLE) &&
10916 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
10922 static void intel_sanitize_crtc(struct intel_crtc *crtc)
10924 struct drm_device *dev = crtc->base.dev;
10925 struct drm_i915_private *dev_priv = dev->dev_private;
10928 /* Clear any frame start delays used for debugging left by the BIOS */
10929 reg = PIPECONF(crtc->config.cpu_transcoder);
10930 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
10932 /* We need to sanitize the plane -> pipe mapping first because this will
10933 * disable the crtc (and hence change the state) if it is wrong. Note
10934 * that gen4+ has a fixed plane -> pipe mapping. */
10935 if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
10936 struct intel_connector *connector;
10939 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
10940 crtc->base.base.id);
10942 /* Pipe has the wrong plane attached and the plane is active.
10943 * Temporarily change the plane mapping and disable everything
10945 plane = crtc->plane;
10946 crtc->plane = !plane;
10947 dev_priv->display.crtc_disable(&crtc->base);
10948 crtc->plane = plane;
10950 /* ... and break all links. */
10951 list_for_each_entry(connector, &dev->mode_config.connector_list,
10953 if (connector->encoder->base.crtc != &crtc->base)
10956 intel_connector_break_all_links(connector);
10959 WARN_ON(crtc->active);
10960 crtc->base.enabled = false;
10963 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
10964 crtc->pipe == PIPE_A && !crtc->active) {
10965 /* BIOS forgot to enable pipe A, this mostly happens after
10966 * resume. Force-enable the pipe to fix this, the update_dpms
10967 * call below we restore the pipe to the right state, but leave
10968 * the required bits on. */
10969 intel_enable_pipe_a(dev);
10972 /* Adjust the state of the output pipe according to whether we
10973 * have active connectors/encoders. */
10974 intel_crtc_update_dpms(&crtc->base);
10976 if (crtc->active != crtc->base.enabled) {
10977 struct intel_encoder *encoder;
10979 /* This can happen either due to bugs in the get_hw_state
10980 * functions or because the pipe is force-enabled due to the
10982 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
10983 crtc->base.base.id,
10984 crtc->base.enabled ? "enabled" : "disabled",
10985 crtc->active ? "enabled" : "disabled");
10987 crtc->base.enabled = crtc->active;
10989 /* Because we only establish the connector -> encoder ->
10990 * crtc links if something is active, this means the
10991 * crtc is now deactivated. Break the links. connector
10992 * -> encoder links are only establish when things are
10993 * actually up, hence no need to break them. */
10994 WARN_ON(crtc->active);
10996 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
10997 WARN_ON(encoder->connectors_active);
10998 encoder->base.crtc = NULL;
11003 static void intel_sanitize_encoder(struct intel_encoder *encoder)
11005 struct intel_connector *connector;
11006 struct drm_device *dev = encoder->base.dev;
11008 /* We need to check both for a crtc link (meaning that the
11009 * encoder is active and trying to read from a pipe) and the
11010 * pipe itself being active. */
11011 bool has_active_crtc = encoder->base.crtc &&
11012 to_intel_crtc(encoder->base.crtc)->active;
11014 if (encoder->connectors_active && !has_active_crtc) {
11015 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
11016 encoder->base.base.id,
11017 drm_get_encoder_name(&encoder->base));
11019 /* Connector is active, but has no active pipe. This is
11020 * fallout from our resume register restoring. Disable
11021 * the encoder manually again. */
11022 if (encoder->base.crtc) {
11023 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
11024 encoder->base.base.id,
11025 drm_get_encoder_name(&encoder->base));
11026 encoder->disable(encoder);
11029 /* Inconsistent output/port/pipe state happens presumably due to
11030 * a bug in one of the get_hw_state functions. Or someplace else
11031 * in our code, like the register restore mess on resume. Clamp
11032 * things to off as a safer default. */
11033 list_for_each_entry(connector,
11034 &dev->mode_config.connector_list,
11036 if (connector->encoder != encoder)
11039 intel_connector_break_all_links(connector);
11042 /* Enabled encoders without active connectors will be fixed in
11043 * the crtc fixup. */
11046 void i915_redisable_vga(struct drm_device *dev)
11048 struct drm_i915_private *dev_priv = dev->dev_private;
11049 u32 vga_reg = i915_vgacntrl_reg(dev);
11051 /* This function can be called both from intel_modeset_setup_hw_state or
11052 * at a very early point in our resume sequence, where the power well
11053 * structures are not yet restored. Since this function is at a very
11054 * paranoid "someone might have enabled VGA while we were not looking"
11055 * level, just check if the power well is enabled instead of trying to
11056 * follow the "don't touch the power well if we don't need it" policy
11057 * the rest of the driver uses. */
11058 if ((IS_HASWELL(dev) || IS_BROADWELL(dev)) &&
11059 (I915_READ(HSW_PWR_WELL_DRIVER) & HSW_PWR_WELL_STATE_ENABLED) == 0)
11062 if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) {
11063 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
11064 i915_disable_vga(dev);
11068 static void intel_modeset_readout_hw_state(struct drm_device *dev)
11070 struct drm_i915_private *dev_priv = dev->dev_private;
11072 struct intel_crtc *crtc;
11073 struct intel_encoder *encoder;
11074 struct intel_connector *connector;
11077 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
11079 memset(&crtc->config, 0, sizeof(crtc->config));
11081 crtc->active = dev_priv->display.get_pipe_config(crtc,
11084 crtc->base.enabled = crtc->active;
11085 crtc->primary_enabled = crtc->active;
11087 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
11088 crtc->base.base.id,
11089 crtc->active ? "enabled" : "disabled");
11092 /* FIXME: Smash this into the new shared dpll infrastructure. */
11094 intel_ddi_setup_hw_pll_state(dev);
11096 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
11097 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
11099 pll->on = pll->get_hw_state(dev_priv, pll, &pll->hw_state);
11101 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
11103 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
11106 pll->refcount = pll->active;
11108 DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
11109 pll->name, pll->refcount, pll->on);
11112 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
11116 if (encoder->get_hw_state(encoder, &pipe)) {
11117 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
11118 encoder->base.crtc = &crtc->base;
11119 encoder->get_config(encoder, &crtc->config);
11121 encoder->base.crtc = NULL;
11124 encoder->connectors_active = false;
11125 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
11126 encoder->base.base.id,
11127 drm_get_encoder_name(&encoder->base),
11128 encoder->base.crtc ? "enabled" : "disabled",
11132 list_for_each_entry(connector, &dev->mode_config.connector_list,
11134 if (connector->get_hw_state(connector)) {
11135 connector->base.dpms = DRM_MODE_DPMS_ON;
11136 connector->encoder->connectors_active = true;
11137 connector->base.encoder = &connector->encoder->base;
11139 connector->base.dpms = DRM_MODE_DPMS_OFF;
11140 connector->base.encoder = NULL;
11142 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
11143 connector->base.base.id,
11144 drm_get_connector_name(&connector->base),
11145 connector->base.encoder ? "enabled" : "disabled");
11149 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
11150 * and i915 state tracking structures. */
11151 void intel_modeset_setup_hw_state(struct drm_device *dev,
11152 bool force_restore)
11154 struct drm_i915_private *dev_priv = dev->dev_private;
11156 struct intel_crtc *crtc;
11157 struct intel_encoder *encoder;
11160 intel_modeset_readout_hw_state(dev);
11163 * Now that we have the config, copy it to each CRTC struct
11164 * Note that this could go away if we move to using crtc_config
11165 * checking everywhere.
11167 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
11169 if (crtc->active && i915_fastboot) {
11170 intel_crtc_mode_from_pipe_config(crtc, &crtc->config);
11172 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
11173 crtc->base.base.id);
11174 drm_mode_debug_printmodeline(&crtc->base.mode);
11178 /* HW state is read out, now we need to sanitize this mess. */
11179 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
11181 intel_sanitize_encoder(encoder);
11184 for_each_pipe(pipe) {
11185 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
11186 intel_sanitize_crtc(crtc);
11187 intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]");
11190 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
11191 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
11193 if (!pll->on || pll->active)
11196 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name);
11198 pll->disable(dev_priv, pll);
11202 if (IS_HASWELL(dev))
11203 ilk_wm_get_hw_state(dev);
11205 if (force_restore) {
11206 i915_redisable_vga(dev);
11209 * We need to use raw interfaces for restoring state to avoid
11210 * checking (bogus) intermediate states.
11212 for_each_pipe(pipe) {
11213 struct drm_crtc *crtc =
11214 dev_priv->pipe_to_crtc_mapping[pipe];
11216 __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
11220 intel_modeset_update_staged_output_state(dev);
11223 intel_modeset_check_state(dev);
11225 drm_mode_config_reset(dev);
11228 void intel_modeset_gem_init(struct drm_device *dev)
11230 intel_modeset_init_hw(dev);
11232 intel_setup_overlay(dev);
11234 intel_modeset_setup_hw_state(dev, false);
11237 void intel_modeset_cleanup(struct drm_device *dev)
11239 struct drm_i915_private *dev_priv = dev->dev_private;
11240 struct drm_crtc *crtc;
11241 struct drm_connector *connector;
11244 * Interrupts and polling as the first thing to avoid creating havoc.
11245 * Too much stuff here (turning of rps, connectors, ...) would
11246 * experience fancy races otherwise.
11248 drm_irq_uninstall(dev);
11249 cancel_work_sync(&dev_priv->hotplug_work);
11251 * Due to the hpd irq storm handling the hotplug work can re-arm the
11252 * poll handlers. Hence disable polling after hpd handling is shut down.
11254 drm_kms_helper_poll_fini(dev);
11256 mutex_lock(&dev->struct_mutex);
11258 intel_unregister_dsm_handler();
11260 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
11261 /* Skip inactive CRTCs */
11265 intel_increase_pllclock(crtc);
11268 intel_disable_fbc(dev);
11270 intel_disable_gt_powersave(dev);
11272 ironlake_teardown_rc6(dev);
11274 mutex_unlock(&dev->struct_mutex);
11276 /* flush any delayed tasks or pending work */
11277 flush_scheduled_work();
11279 /* destroy the backlight and sysfs files before encoders/connectors */
11280 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
11281 intel_panel_destroy_backlight(connector);
11282 drm_sysfs_connector_remove(connector);
11285 drm_mode_config_cleanup(dev);
11287 intel_cleanup_overlay(dev);
11291 * Return which encoder is currently attached for connector.
11293 struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
11295 return &intel_attached_encoder(connector)->base;
11298 void intel_connector_attach_encoder(struct intel_connector *connector,
11299 struct intel_encoder *encoder)
11301 connector->encoder = encoder;
11302 drm_mode_connector_attach_encoder(&connector->base,
11307 * set vga decode state - true == enable VGA decode
11309 int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
11311 struct drm_i915_private *dev_priv = dev->dev_private;
11314 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
11316 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
11318 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
11319 pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
11323 struct intel_display_error_state {
11325 u32 power_well_driver;
11327 int num_transcoders;
11329 struct intel_cursor_error_state {
11334 } cursor[I915_MAX_PIPES];
11336 struct intel_pipe_error_state {
11337 bool power_domain_on;
11339 } pipe[I915_MAX_PIPES];
11341 struct intel_plane_error_state {
11349 } plane[I915_MAX_PIPES];
11351 struct intel_transcoder_error_state {
11352 bool power_domain_on;
11353 enum transcoder cpu_transcoder;
11366 struct intel_display_error_state *
11367 intel_display_capture_error_state(struct drm_device *dev)
11369 drm_i915_private_t *dev_priv = dev->dev_private;
11370 struct intel_display_error_state *error;
11371 int transcoders[] = {
11379 if (INTEL_INFO(dev)->num_pipes == 0)
11382 error = kzalloc(sizeof(*error), GFP_ATOMIC);
11386 if (IS_HASWELL(dev) || IS_BROADWELL(dev))
11387 error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
11390 error->pipe[i].power_domain_on =
11391 intel_display_power_enabled_sw(dev, POWER_DOMAIN_PIPE(i));
11392 if (!error->pipe[i].power_domain_on)
11395 if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
11396 error->cursor[i].control = I915_READ(CURCNTR(i));
11397 error->cursor[i].position = I915_READ(CURPOS(i));
11398 error->cursor[i].base = I915_READ(CURBASE(i));
11400 error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
11401 error->cursor[i].position = I915_READ(CURPOS_IVB(i));
11402 error->cursor[i].base = I915_READ(CURBASE_IVB(i));
11405 error->plane[i].control = I915_READ(DSPCNTR(i));
11406 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
11407 if (INTEL_INFO(dev)->gen <= 3) {
11408 error->plane[i].size = I915_READ(DSPSIZE(i));
11409 error->plane[i].pos = I915_READ(DSPPOS(i));
11411 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
11412 error->plane[i].addr = I915_READ(DSPADDR(i));
11413 if (INTEL_INFO(dev)->gen >= 4) {
11414 error->plane[i].surface = I915_READ(DSPSURF(i));
11415 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
11418 error->pipe[i].source = I915_READ(PIPESRC(i));
11421 error->num_transcoders = INTEL_INFO(dev)->num_pipes;
11422 if (HAS_DDI(dev_priv->dev))
11423 error->num_transcoders++; /* Account for eDP. */
11425 for (i = 0; i < error->num_transcoders; i++) {
11426 enum transcoder cpu_transcoder = transcoders[i];
11428 error->transcoder[i].power_domain_on =
11429 intel_display_power_enabled_sw(dev, POWER_DOMAIN_PIPE(i));
11430 if (!error->transcoder[i].power_domain_on)
11433 error->transcoder[i].cpu_transcoder = cpu_transcoder;
11435 error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder));
11436 error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
11437 error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder));
11438 error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder));
11439 error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
11440 error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder));
11441 error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder));
11447 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
11450 intel_display_print_error_state(struct drm_i915_error_state_buf *m,
11451 struct drm_device *dev,
11452 struct intel_display_error_state *error)
11459 err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
11460 if (IS_HASWELL(dev) || IS_BROADWELL(dev))
11461 err_printf(m, "PWR_WELL_CTL2: %08x\n",
11462 error->power_well_driver);
11464 err_printf(m, "Pipe [%d]:\n", i);
11465 err_printf(m, " Power: %s\n",
11466 error->pipe[i].power_domain_on ? "on" : "off");
11467 err_printf(m, " SRC: %08x\n", error->pipe[i].source);
11469 err_printf(m, "Plane [%d]:\n", i);
11470 err_printf(m, " CNTR: %08x\n", error->plane[i].control);
11471 err_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
11472 if (INTEL_INFO(dev)->gen <= 3) {
11473 err_printf(m, " SIZE: %08x\n", error->plane[i].size);
11474 err_printf(m, " POS: %08x\n", error->plane[i].pos);
11476 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
11477 err_printf(m, " ADDR: %08x\n", error->plane[i].addr);
11478 if (INTEL_INFO(dev)->gen >= 4) {
11479 err_printf(m, " SURF: %08x\n", error->plane[i].surface);
11480 err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
11483 err_printf(m, "Cursor [%d]:\n", i);
11484 err_printf(m, " CNTR: %08x\n", error->cursor[i].control);
11485 err_printf(m, " POS: %08x\n", error->cursor[i].position);
11486 err_printf(m, " BASE: %08x\n", error->cursor[i].base);
11489 for (i = 0; i < error->num_transcoders; i++) {
11490 err_printf(m, "CPU transcoder: %c\n",
11491 transcoder_name(error->transcoder[i].cpu_transcoder));
11492 err_printf(m, " Power: %s\n",
11493 error->transcoder[i].power_domain_on ? "on" : "off");
11494 err_printf(m, " CONF: %08x\n", error->transcoder[i].conf);
11495 err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal);
11496 err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank);
11497 err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync);
11498 err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal);
11499 err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank);
11500 err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync);