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 ironlake_wait_for_vblank(struct drm_device *dev, int pipe)
753 struct drm_i915_private *dev_priv = dev->dev_private;
754 u32 frame, frame_reg = PIPEFRAME(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 (INTEL_INFO(dev)->gen >= 5) {
776 ironlake_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))
1365 * From VLV2A0_DP_eDP_DPIO_driver_vbios_notes_10.docx -
1366 * 6. De-assert cmn_reset/side_reset. Same as VLV X0.
1367 * a. GUnit 0x2110 bit[0] set to 1 (def 0)
1368 * b. The other bits such as sfr settings / modesel may all be set
1371 * This should only be done on init and resume from S3 with both
1372 * PLLs disabled, or we risk losing DPIO and PLL synchronization.
1374 I915_WRITE(DPIO_CTL, I915_READ(DPIO_CTL) | DPIO_CMNRST);
1377 static void vlv_enable_pll(struct intel_crtc *crtc)
1379 struct drm_device *dev = crtc->base.dev;
1380 struct drm_i915_private *dev_priv = dev->dev_private;
1381 int reg = DPLL(crtc->pipe);
1382 u32 dpll = crtc->config.dpll_hw_state.dpll;
1384 assert_pipe_disabled(dev_priv, crtc->pipe);
1386 /* No really, not for ILK+ */
1387 BUG_ON(!IS_VALLEYVIEW(dev_priv->dev));
1389 /* PLL is protected by panel, make sure we can write it */
1390 if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev))
1391 assert_panel_unlocked(dev_priv, crtc->pipe);
1393 I915_WRITE(reg, dpll);
1397 if (wait_for(((I915_READ(reg) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
1398 DRM_ERROR("DPLL %d failed to lock\n", crtc->pipe);
1400 I915_WRITE(DPLL_MD(crtc->pipe), crtc->config.dpll_hw_state.dpll_md);
1401 POSTING_READ(DPLL_MD(crtc->pipe));
1403 /* We do this three times for luck */
1404 I915_WRITE(reg, dpll);
1406 udelay(150); /* wait for warmup */
1407 I915_WRITE(reg, dpll);
1409 udelay(150); /* wait for warmup */
1410 I915_WRITE(reg, dpll);
1412 udelay(150); /* wait for warmup */
1415 static void i9xx_enable_pll(struct intel_crtc *crtc)
1417 struct drm_device *dev = crtc->base.dev;
1418 struct drm_i915_private *dev_priv = dev->dev_private;
1419 int reg = DPLL(crtc->pipe);
1420 u32 dpll = crtc->config.dpll_hw_state.dpll;
1422 assert_pipe_disabled(dev_priv, crtc->pipe);
1424 /* No really, not for ILK+ */
1425 BUG_ON(dev_priv->info->gen >= 5);
1427 /* PLL is protected by panel, make sure we can write it */
1428 if (IS_MOBILE(dev) && !IS_I830(dev))
1429 assert_panel_unlocked(dev_priv, crtc->pipe);
1431 I915_WRITE(reg, dpll);
1433 /* Wait for the clocks to stabilize. */
1437 if (INTEL_INFO(dev)->gen >= 4) {
1438 I915_WRITE(DPLL_MD(crtc->pipe),
1439 crtc->config.dpll_hw_state.dpll_md);
1441 /* The pixel multiplier can only be updated once the
1442 * DPLL is enabled and the clocks are stable.
1444 * So write it again.
1446 I915_WRITE(reg, dpll);
1449 /* We do this three times for luck */
1450 I915_WRITE(reg, dpll);
1452 udelay(150); /* wait for warmup */
1453 I915_WRITE(reg, dpll);
1455 udelay(150); /* wait for warmup */
1456 I915_WRITE(reg, dpll);
1458 udelay(150); /* wait for warmup */
1462 * i9xx_disable_pll - disable a PLL
1463 * @dev_priv: i915 private structure
1464 * @pipe: pipe PLL to disable
1466 * Disable the PLL for @pipe, making sure the pipe is off first.
1468 * Note! This is for pre-ILK only.
1470 static void i9xx_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1472 /* Don't disable pipe A or pipe A PLLs if needed */
1473 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1476 /* Make sure the pipe isn't still relying on us */
1477 assert_pipe_disabled(dev_priv, pipe);
1479 I915_WRITE(DPLL(pipe), 0);
1480 POSTING_READ(DPLL(pipe));
1483 static void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1487 /* Make sure the pipe isn't still relying on us */
1488 assert_pipe_disabled(dev_priv, pipe);
1490 /* Leave integrated clock source enabled */
1492 val = DPLL_INTEGRATED_CRI_CLK_VLV;
1493 I915_WRITE(DPLL(pipe), val);
1494 POSTING_READ(DPLL(pipe));
1497 void vlv_wait_port_ready(struct drm_i915_private *dev_priv, int port)
1502 port_mask = DPLL_PORTB_READY_MASK;
1504 port_mask = DPLL_PORTC_READY_MASK;
1506 if (wait_for((I915_READ(DPLL(0)) & port_mask) == 0, 1000))
1507 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1508 'B' + port, I915_READ(DPLL(0)));
1512 * ironlake_enable_shared_dpll - enable PCH PLL
1513 * @dev_priv: i915 private structure
1514 * @pipe: pipe PLL to enable
1516 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1517 * drives the transcoder clock.
1519 static void ironlake_enable_shared_dpll(struct intel_crtc *crtc)
1521 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
1522 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
1524 /* PCH PLLs only available on ILK, SNB and IVB */
1525 BUG_ON(dev_priv->info->gen < 5);
1526 if (WARN_ON(pll == NULL))
1529 if (WARN_ON(pll->refcount == 0))
1532 DRM_DEBUG_KMS("enable %s (active %d, on? %d)for crtc %d\n",
1533 pll->name, pll->active, pll->on,
1534 crtc->base.base.id);
1536 if (pll->active++) {
1538 assert_shared_dpll_enabled(dev_priv, pll);
1543 DRM_DEBUG_KMS("enabling %s\n", pll->name);
1544 pll->enable(dev_priv, pll);
1548 static void intel_disable_shared_dpll(struct intel_crtc *crtc)
1550 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
1551 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
1553 /* PCH only available on ILK+ */
1554 BUG_ON(dev_priv->info->gen < 5);
1555 if (WARN_ON(pll == NULL))
1558 if (WARN_ON(pll->refcount == 0))
1561 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1562 pll->name, pll->active, pll->on,
1563 crtc->base.base.id);
1565 if (WARN_ON(pll->active == 0)) {
1566 assert_shared_dpll_disabled(dev_priv, pll);
1570 assert_shared_dpll_enabled(dev_priv, pll);
1575 DRM_DEBUG_KMS("disabling %s\n", pll->name);
1576 pll->disable(dev_priv, pll);
1580 static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1583 struct drm_device *dev = dev_priv->dev;
1584 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
1585 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1586 uint32_t reg, val, pipeconf_val;
1588 /* PCH only available on ILK+ */
1589 BUG_ON(dev_priv->info->gen < 5);
1591 /* Make sure PCH DPLL is enabled */
1592 assert_shared_dpll_enabled(dev_priv,
1593 intel_crtc_to_shared_dpll(intel_crtc));
1595 /* FDI must be feeding us bits for PCH ports */
1596 assert_fdi_tx_enabled(dev_priv, pipe);
1597 assert_fdi_rx_enabled(dev_priv, pipe);
1599 if (HAS_PCH_CPT(dev)) {
1600 /* Workaround: Set the timing override bit before enabling the
1601 * pch transcoder. */
1602 reg = TRANS_CHICKEN2(pipe);
1603 val = I915_READ(reg);
1604 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1605 I915_WRITE(reg, val);
1608 reg = PCH_TRANSCONF(pipe);
1609 val = I915_READ(reg);
1610 pipeconf_val = I915_READ(PIPECONF(pipe));
1612 if (HAS_PCH_IBX(dev_priv->dev)) {
1614 * make the BPC in transcoder be consistent with
1615 * that in pipeconf reg.
1617 val &= ~PIPECONF_BPC_MASK;
1618 val |= pipeconf_val & PIPECONF_BPC_MASK;
1621 val &= ~TRANS_INTERLACE_MASK;
1622 if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
1623 if (HAS_PCH_IBX(dev_priv->dev) &&
1624 intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO))
1625 val |= TRANS_LEGACY_INTERLACED_ILK;
1627 val |= TRANS_INTERLACED;
1629 val |= TRANS_PROGRESSIVE;
1631 I915_WRITE(reg, val | TRANS_ENABLE);
1632 if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
1633 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe));
1636 static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1637 enum transcoder cpu_transcoder)
1639 u32 val, pipeconf_val;
1641 /* PCH only available on ILK+ */
1642 BUG_ON(dev_priv->info->gen < 5);
1644 /* FDI must be feeding us bits for PCH ports */
1645 assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
1646 assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
1648 /* Workaround: set timing override bit. */
1649 val = I915_READ(_TRANSA_CHICKEN2);
1650 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1651 I915_WRITE(_TRANSA_CHICKEN2, val);
1654 pipeconf_val = I915_READ(PIPECONF(cpu_transcoder));
1656 if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) ==
1657 PIPECONF_INTERLACED_ILK)
1658 val |= TRANS_INTERLACED;
1660 val |= TRANS_PROGRESSIVE;
1662 I915_WRITE(LPT_TRANSCONF, val);
1663 if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100))
1664 DRM_ERROR("Failed to enable PCH transcoder\n");
1667 static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
1670 struct drm_device *dev = dev_priv->dev;
1673 /* FDI relies on the transcoder */
1674 assert_fdi_tx_disabled(dev_priv, pipe);
1675 assert_fdi_rx_disabled(dev_priv, pipe);
1677 /* Ports must be off as well */
1678 assert_pch_ports_disabled(dev_priv, pipe);
1680 reg = PCH_TRANSCONF(pipe);
1681 val = I915_READ(reg);
1682 val &= ~TRANS_ENABLE;
1683 I915_WRITE(reg, val);
1684 /* wait for PCH transcoder off, transcoder state */
1685 if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
1686 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe));
1688 if (!HAS_PCH_IBX(dev)) {
1689 /* Workaround: Clear the timing override chicken bit again. */
1690 reg = TRANS_CHICKEN2(pipe);
1691 val = I915_READ(reg);
1692 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1693 I915_WRITE(reg, val);
1697 static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
1701 val = I915_READ(LPT_TRANSCONF);
1702 val &= ~TRANS_ENABLE;
1703 I915_WRITE(LPT_TRANSCONF, val);
1704 /* wait for PCH transcoder off, transcoder state */
1705 if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50))
1706 DRM_ERROR("Failed to disable PCH transcoder\n");
1708 /* Workaround: clear timing override bit. */
1709 val = I915_READ(_TRANSA_CHICKEN2);
1710 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1711 I915_WRITE(_TRANSA_CHICKEN2, val);
1715 * intel_enable_pipe - enable a pipe, asserting requirements
1716 * @dev_priv: i915 private structure
1717 * @pipe: pipe to enable
1718 * @pch_port: on ILK+, is this pipe driving a PCH port or not
1720 * Enable @pipe, making sure that various hardware specific requirements
1721 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1723 * @pipe should be %PIPE_A or %PIPE_B.
1725 * Will wait until the pipe is actually running (i.e. first vblank) before
1728 static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
1729 bool pch_port, bool dsi)
1731 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1733 enum pipe pch_transcoder;
1737 assert_planes_disabled(dev_priv, pipe);
1738 assert_cursor_disabled(dev_priv, pipe);
1739 assert_sprites_disabled(dev_priv, pipe);
1741 if (HAS_PCH_LPT(dev_priv->dev))
1742 pch_transcoder = TRANSCODER_A;
1744 pch_transcoder = pipe;
1747 * A pipe without a PLL won't actually be able to drive bits from
1748 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1751 if (!HAS_PCH_SPLIT(dev_priv->dev))
1753 assert_dsi_pll_enabled(dev_priv);
1755 assert_pll_enabled(dev_priv, pipe);
1758 /* if driving the PCH, we need FDI enabled */
1759 assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
1760 assert_fdi_tx_pll_enabled(dev_priv,
1761 (enum pipe) cpu_transcoder);
1763 /* FIXME: assert CPU port conditions for SNB+ */
1766 reg = PIPECONF(cpu_transcoder);
1767 val = I915_READ(reg);
1768 if (val & PIPECONF_ENABLE)
1771 I915_WRITE(reg, val | PIPECONF_ENABLE);
1772 intel_wait_for_vblank(dev_priv->dev, pipe);
1776 * intel_disable_pipe - disable a pipe, asserting requirements
1777 * @dev_priv: i915 private structure
1778 * @pipe: pipe to disable
1780 * Disable @pipe, making sure that various hardware specific requirements
1781 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1783 * @pipe should be %PIPE_A or %PIPE_B.
1785 * Will wait until the pipe has shut down before returning.
1787 static void intel_disable_pipe(struct drm_i915_private *dev_priv,
1790 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1796 * Make sure planes won't keep trying to pump pixels to us,
1797 * or we might hang the display.
1799 assert_planes_disabled(dev_priv, pipe);
1800 assert_cursor_disabled(dev_priv, pipe);
1801 assert_sprites_disabled(dev_priv, pipe);
1803 /* Don't disable pipe A or pipe A PLLs if needed */
1804 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1807 reg = PIPECONF(cpu_transcoder);
1808 val = I915_READ(reg);
1809 if ((val & PIPECONF_ENABLE) == 0)
1812 I915_WRITE(reg, val & ~PIPECONF_ENABLE);
1813 intel_wait_for_pipe_off(dev_priv->dev, pipe);
1817 * Plane regs are double buffered, going from enabled->disabled needs a
1818 * trigger in order to latch. The display address reg provides this.
1820 void intel_flush_primary_plane(struct drm_i915_private *dev_priv,
1823 u32 reg = dev_priv->info->gen >= 4 ? DSPSURF(plane) : DSPADDR(plane);
1825 I915_WRITE(reg, I915_READ(reg));
1830 * intel_enable_primary_plane - enable the primary plane on a given pipe
1831 * @dev_priv: i915 private structure
1832 * @plane: plane to enable
1833 * @pipe: pipe being fed
1835 * Enable @plane on @pipe, making sure that @pipe is running first.
1837 static void intel_enable_primary_plane(struct drm_i915_private *dev_priv,
1838 enum plane plane, enum pipe pipe)
1840 struct intel_crtc *intel_crtc =
1841 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
1845 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1846 assert_pipe_enabled(dev_priv, pipe);
1848 WARN(intel_crtc->primary_enabled, "Primary plane already enabled\n");
1850 intel_crtc->primary_enabled = true;
1852 reg = DSPCNTR(plane);
1853 val = I915_READ(reg);
1854 if (val & DISPLAY_PLANE_ENABLE)
1857 I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
1858 intel_flush_primary_plane(dev_priv, plane);
1859 intel_wait_for_vblank(dev_priv->dev, pipe);
1863 * intel_disable_primary_plane - disable the primary plane
1864 * @dev_priv: i915 private structure
1865 * @plane: plane to disable
1866 * @pipe: pipe consuming the data
1868 * Disable @plane; should be an independent operation.
1870 static void intel_disable_primary_plane(struct drm_i915_private *dev_priv,
1871 enum plane plane, enum pipe pipe)
1873 struct intel_crtc *intel_crtc =
1874 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
1878 WARN(!intel_crtc->primary_enabled, "Primary plane already disabled\n");
1880 intel_crtc->primary_enabled = false;
1882 reg = DSPCNTR(plane);
1883 val = I915_READ(reg);
1884 if ((val & DISPLAY_PLANE_ENABLE) == 0)
1887 I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
1888 intel_flush_primary_plane(dev_priv, plane);
1889 intel_wait_for_vblank(dev_priv->dev, pipe);
1892 static bool need_vtd_wa(struct drm_device *dev)
1894 #ifdef CONFIG_INTEL_IOMMU
1895 if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped)
1902 intel_pin_and_fence_fb_obj(struct drm_device *dev,
1903 struct drm_i915_gem_object *obj,
1904 struct intel_ring_buffer *pipelined)
1906 struct drm_i915_private *dev_priv = dev->dev_private;
1910 switch (obj->tiling_mode) {
1911 case I915_TILING_NONE:
1912 if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
1913 alignment = 128 * 1024;
1914 else if (INTEL_INFO(dev)->gen >= 4)
1915 alignment = 4 * 1024;
1917 alignment = 64 * 1024;
1920 /* pin() will align the object as required by fence */
1924 WARN(1, "Y tiled bo slipped through, driver bug!\n");
1930 /* Note that the w/a also requires 64 PTE of padding following the
1931 * bo. We currently fill all unused PTE with the shadow page and so
1932 * we should always have valid PTE following the scanout preventing
1935 if (need_vtd_wa(dev) && alignment < 256 * 1024)
1936 alignment = 256 * 1024;
1938 dev_priv->mm.interruptible = false;
1939 ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
1941 goto err_interruptible;
1943 /* Install a fence for tiled scan-out. Pre-i965 always needs a
1944 * fence, whereas 965+ only requires a fence if using
1945 * framebuffer compression. For simplicity, we always install
1946 * a fence as the cost is not that onerous.
1948 ret = i915_gem_object_get_fence(obj);
1952 i915_gem_object_pin_fence(obj);
1954 dev_priv->mm.interruptible = true;
1958 i915_gem_object_unpin_from_display_plane(obj);
1960 dev_priv->mm.interruptible = true;
1964 void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
1966 i915_gem_object_unpin_fence(obj);
1967 i915_gem_object_unpin_from_display_plane(obj);
1970 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
1971 * is assumed to be a power-of-two. */
1972 unsigned long intel_gen4_compute_page_offset(int *x, int *y,
1973 unsigned int tiling_mode,
1977 if (tiling_mode != I915_TILING_NONE) {
1978 unsigned int tile_rows, tiles;
1983 tiles = *x / (512/cpp);
1986 return tile_rows * pitch * 8 + tiles * 4096;
1988 unsigned int offset;
1990 offset = *y * pitch + *x * cpp;
1992 *x = (offset & 4095) / cpp;
1993 return offset & -4096;
1997 static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2000 struct drm_device *dev = crtc->dev;
2001 struct drm_i915_private *dev_priv = dev->dev_private;
2002 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2003 struct intel_framebuffer *intel_fb;
2004 struct drm_i915_gem_object *obj;
2005 int plane = intel_crtc->plane;
2006 unsigned long linear_offset;
2015 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
2019 intel_fb = to_intel_framebuffer(fb);
2020 obj = intel_fb->obj;
2022 reg = DSPCNTR(plane);
2023 dspcntr = I915_READ(reg);
2024 /* Mask out pixel format bits in case we change it */
2025 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2026 switch (fb->pixel_format) {
2028 dspcntr |= DISPPLANE_8BPP;
2030 case DRM_FORMAT_XRGB1555:
2031 case DRM_FORMAT_ARGB1555:
2032 dspcntr |= DISPPLANE_BGRX555;
2034 case DRM_FORMAT_RGB565:
2035 dspcntr |= DISPPLANE_BGRX565;
2037 case DRM_FORMAT_XRGB8888:
2038 case DRM_FORMAT_ARGB8888:
2039 dspcntr |= DISPPLANE_BGRX888;
2041 case DRM_FORMAT_XBGR8888:
2042 case DRM_FORMAT_ABGR8888:
2043 dspcntr |= DISPPLANE_RGBX888;
2045 case DRM_FORMAT_XRGB2101010:
2046 case DRM_FORMAT_ARGB2101010:
2047 dspcntr |= DISPPLANE_BGRX101010;
2049 case DRM_FORMAT_XBGR2101010:
2050 case DRM_FORMAT_ABGR2101010:
2051 dspcntr |= DISPPLANE_RGBX101010;
2057 if (INTEL_INFO(dev)->gen >= 4) {
2058 if (obj->tiling_mode != I915_TILING_NONE)
2059 dspcntr |= DISPPLANE_TILED;
2061 dspcntr &= ~DISPPLANE_TILED;
2065 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2067 I915_WRITE(reg, dspcntr);
2069 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2071 if (INTEL_INFO(dev)->gen >= 4) {
2072 intel_crtc->dspaddr_offset =
2073 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2074 fb->bits_per_pixel / 8,
2076 linear_offset -= intel_crtc->dspaddr_offset;
2078 intel_crtc->dspaddr_offset = linear_offset;
2081 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2082 i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
2084 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2085 if (INTEL_INFO(dev)->gen >= 4) {
2086 I915_MODIFY_DISPBASE(DSPSURF(plane),
2087 i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
2088 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2089 I915_WRITE(DSPLINOFF(plane), linear_offset);
2091 I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset);
2097 static int ironlake_update_plane(struct drm_crtc *crtc,
2098 struct drm_framebuffer *fb, int x, int y)
2100 struct drm_device *dev = crtc->dev;
2101 struct drm_i915_private *dev_priv = dev->dev_private;
2102 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2103 struct intel_framebuffer *intel_fb;
2104 struct drm_i915_gem_object *obj;
2105 int plane = intel_crtc->plane;
2106 unsigned long linear_offset;
2116 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
2120 intel_fb = to_intel_framebuffer(fb);
2121 obj = intel_fb->obj;
2123 reg = DSPCNTR(plane);
2124 dspcntr = I915_READ(reg);
2125 /* Mask out pixel format bits in case we change it */
2126 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2127 switch (fb->pixel_format) {
2129 dspcntr |= DISPPLANE_8BPP;
2131 case DRM_FORMAT_RGB565:
2132 dspcntr |= DISPPLANE_BGRX565;
2134 case DRM_FORMAT_XRGB8888:
2135 case DRM_FORMAT_ARGB8888:
2136 dspcntr |= DISPPLANE_BGRX888;
2138 case DRM_FORMAT_XBGR8888:
2139 case DRM_FORMAT_ABGR8888:
2140 dspcntr |= DISPPLANE_RGBX888;
2142 case DRM_FORMAT_XRGB2101010:
2143 case DRM_FORMAT_ARGB2101010:
2144 dspcntr |= DISPPLANE_BGRX101010;
2146 case DRM_FORMAT_XBGR2101010:
2147 case DRM_FORMAT_ABGR2101010:
2148 dspcntr |= DISPPLANE_RGBX101010;
2154 if (obj->tiling_mode != I915_TILING_NONE)
2155 dspcntr |= DISPPLANE_TILED;
2157 dspcntr &= ~DISPPLANE_TILED;
2159 if (IS_HASWELL(dev))
2160 dspcntr &= ~DISPPLANE_TRICKLE_FEED_DISABLE;
2162 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2164 I915_WRITE(reg, dspcntr);
2166 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2167 intel_crtc->dspaddr_offset =
2168 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2169 fb->bits_per_pixel / 8,
2171 linear_offset -= intel_crtc->dspaddr_offset;
2173 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2174 i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
2176 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2177 I915_MODIFY_DISPBASE(DSPSURF(plane),
2178 i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
2179 if (IS_HASWELL(dev)) {
2180 I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
2182 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2183 I915_WRITE(DSPLINOFF(plane), linear_offset);
2190 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2192 intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2193 int x, int y, enum mode_set_atomic state)
2195 struct drm_device *dev = crtc->dev;
2196 struct drm_i915_private *dev_priv = dev->dev_private;
2198 if (dev_priv->display.disable_fbc)
2199 dev_priv->display.disable_fbc(dev);
2200 intel_increase_pllclock(crtc);
2202 return dev_priv->display.update_plane(crtc, fb, x, y);
2205 void intel_display_handle_reset(struct drm_device *dev)
2207 struct drm_i915_private *dev_priv = dev->dev_private;
2208 struct drm_crtc *crtc;
2211 * Flips in the rings have been nuked by the reset,
2212 * so complete all pending flips so that user space
2213 * will get its events and not get stuck.
2215 * Also update the base address of all primary
2216 * planes to the the last fb to make sure we're
2217 * showing the correct fb after a reset.
2219 * Need to make two loops over the crtcs so that we
2220 * don't try to grab a crtc mutex before the
2221 * pending_flip_queue really got woken up.
2224 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2225 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2226 enum plane plane = intel_crtc->plane;
2228 intel_prepare_page_flip(dev, plane);
2229 intel_finish_page_flip_plane(dev, plane);
2232 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2233 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2235 mutex_lock(&crtc->mutex);
2236 if (intel_crtc->active)
2237 dev_priv->display.update_plane(crtc, crtc->fb,
2239 mutex_unlock(&crtc->mutex);
2244 intel_finish_fb(struct drm_framebuffer *old_fb)
2246 struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
2247 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2248 bool was_interruptible = dev_priv->mm.interruptible;
2251 /* Big Hammer, we also need to ensure that any pending
2252 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2253 * current scanout is retired before unpinning the old
2256 * This should only fail upon a hung GPU, in which case we
2257 * can safely continue.
2259 dev_priv->mm.interruptible = false;
2260 ret = i915_gem_object_finish_gpu(obj);
2261 dev_priv->mm.interruptible = was_interruptible;
2266 static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y)
2268 struct drm_device *dev = crtc->dev;
2269 struct drm_i915_master_private *master_priv;
2270 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2272 if (!dev->primary->master)
2275 master_priv = dev->primary->master->driver_priv;
2276 if (!master_priv->sarea_priv)
2279 switch (intel_crtc->pipe) {
2281 master_priv->sarea_priv->pipeA_x = x;
2282 master_priv->sarea_priv->pipeA_y = y;
2285 master_priv->sarea_priv->pipeB_x = x;
2286 master_priv->sarea_priv->pipeB_y = y;
2294 intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
2295 struct drm_framebuffer *fb)
2297 struct drm_device *dev = crtc->dev;
2298 struct drm_i915_private *dev_priv = dev->dev_private;
2299 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2300 struct drm_framebuffer *old_fb;
2305 DRM_ERROR("No FB bound\n");
2309 if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
2310 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2311 plane_name(intel_crtc->plane),
2312 INTEL_INFO(dev)->num_pipes);
2316 mutex_lock(&dev->struct_mutex);
2317 ret = intel_pin_and_fence_fb_obj(dev,
2318 to_intel_framebuffer(fb)->obj,
2321 mutex_unlock(&dev->struct_mutex);
2322 DRM_ERROR("pin & fence failed\n");
2327 * Update pipe size and adjust fitter if needed: the reason for this is
2328 * that in compute_mode_changes we check the native mode (not the pfit
2329 * mode) to see if we can flip rather than do a full mode set. In the
2330 * fastboot case, we'll flip, but if we don't update the pipesrc and
2331 * pfit state, we'll end up with a big fb scanned out into the wrong
2334 * To fix this properly, we need to hoist the checks up into
2335 * compute_mode_changes (or above), check the actual pfit state and
2336 * whether the platform allows pfit disable with pipe active, and only
2337 * then update the pipesrc and pfit state, even on the flip path.
2339 if (i915_fastboot) {
2340 const struct drm_display_mode *adjusted_mode =
2341 &intel_crtc->config.adjusted_mode;
2343 I915_WRITE(PIPESRC(intel_crtc->pipe),
2344 ((adjusted_mode->crtc_hdisplay - 1) << 16) |
2345 (adjusted_mode->crtc_vdisplay - 1));
2346 if (!intel_crtc->config.pch_pfit.enabled &&
2347 (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) ||
2348 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
2349 I915_WRITE(PF_CTL(intel_crtc->pipe), 0);
2350 I915_WRITE(PF_WIN_POS(intel_crtc->pipe), 0);
2351 I915_WRITE(PF_WIN_SZ(intel_crtc->pipe), 0);
2355 ret = dev_priv->display.update_plane(crtc, fb, x, y);
2357 intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);
2358 mutex_unlock(&dev->struct_mutex);
2359 DRM_ERROR("failed to update base address\n");
2369 if (intel_crtc->active && old_fb != fb)
2370 intel_wait_for_vblank(dev, intel_crtc->pipe);
2371 intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
2374 intel_update_fbc(dev);
2375 intel_edp_psr_update(dev);
2376 mutex_unlock(&dev->struct_mutex);
2378 intel_crtc_update_sarea_pos(crtc, x, y);
2383 static void intel_fdi_normal_train(struct drm_crtc *crtc)
2385 struct drm_device *dev = crtc->dev;
2386 struct drm_i915_private *dev_priv = dev->dev_private;
2387 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2388 int pipe = intel_crtc->pipe;
2391 /* enable normal train */
2392 reg = FDI_TX_CTL(pipe);
2393 temp = I915_READ(reg);
2394 if (IS_IVYBRIDGE(dev)) {
2395 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2396 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
2398 temp &= ~FDI_LINK_TRAIN_NONE;
2399 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
2401 I915_WRITE(reg, temp);
2403 reg = FDI_RX_CTL(pipe);
2404 temp = I915_READ(reg);
2405 if (HAS_PCH_CPT(dev)) {
2406 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2407 temp |= FDI_LINK_TRAIN_NORMAL_CPT;
2409 temp &= ~FDI_LINK_TRAIN_NONE;
2410 temp |= FDI_LINK_TRAIN_NONE;
2412 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
2414 /* wait one idle pattern time */
2418 /* IVB wants error correction enabled */
2419 if (IS_IVYBRIDGE(dev))
2420 I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
2421 FDI_FE_ERRC_ENABLE);
2424 static bool pipe_has_enabled_pch(struct intel_crtc *intel_crtc)
2426 return intel_crtc->base.enabled && intel_crtc->config.has_pch_encoder;
2429 static void ivb_modeset_global_resources(struct drm_device *dev)
2431 struct drm_i915_private *dev_priv = dev->dev_private;
2432 struct intel_crtc *pipe_B_crtc =
2433 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
2434 struct intel_crtc *pipe_C_crtc =
2435 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]);
2439 * When everything is off disable fdi C so that we could enable fdi B
2440 * with all lanes. Note that we don't care about enabled pipes without
2441 * an enabled pch encoder.
2443 if (!pipe_has_enabled_pch(pipe_B_crtc) &&
2444 !pipe_has_enabled_pch(pipe_C_crtc)) {
2445 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
2446 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
2448 temp = I915_READ(SOUTH_CHICKEN1);
2449 temp &= ~FDI_BC_BIFURCATION_SELECT;
2450 DRM_DEBUG_KMS("disabling fdi C rx\n");
2451 I915_WRITE(SOUTH_CHICKEN1, temp);
2455 /* The FDI link training functions for ILK/Ibexpeak. */
2456 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
2458 struct drm_device *dev = crtc->dev;
2459 struct drm_i915_private *dev_priv = dev->dev_private;
2460 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2461 int pipe = intel_crtc->pipe;
2462 int plane = intel_crtc->plane;
2463 u32 reg, temp, tries;
2465 /* FDI needs bits from pipe & plane first */
2466 assert_pipe_enabled(dev_priv, pipe);
2467 assert_plane_enabled(dev_priv, plane);
2469 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2471 reg = FDI_RX_IMR(pipe);
2472 temp = I915_READ(reg);
2473 temp &= ~FDI_RX_SYMBOL_LOCK;
2474 temp &= ~FDI_RX_BIT_LOCK;
2475 I915_WRITE(reg, temp);
2479 /* enable CPU FDI TX and PCH FDI RX */
2480 reg = FDI_TX_CTL(pipe);
2481 temp = I915_READ(reg);
2482 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2483 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2484 temp &= ~FDI_LINK_TRAIN_NONE;
2485 temp |= FDI_LINK_TRAIN_PATTERN_1;
2486 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2488 reg = FDI_RX_CTL(pipe);
2489 temp = I915_READ(reg);
2490 temp &= ~FDI_LINK_TRAIN_NONE;
2491 temp |= FDI_LINK_TRAIN_PATTERN_1;
2492 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2497 /* Ironlake workaround, enable clock pointer after FDI enable*/
2498 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2499 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
2500 FDI_RX_PHASE_SYNC_POINTER_EN);
2502 reg = FDI_RX_IIR(pipe);
2503 for (tries = 0; tries < 5; tries++) {
2504 temp = I915_READ(reg);
2505 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2507 if ((temp & FDI_RX_BIT_LOCK)) {
2508 DRM_DEBUG_KMS("FDI train 1 done.\n");
2509 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2514 DRM_ERROR("FDI train 1 fail!\n");
2517 reg = FDI_TX_CTL(pipe);
2518 temp = I915_READ(reg);
2519 temp &= ~FDI_LINK_TRAIN_NONE;
2520 temp |= FDI_LINK_TRAIN_PATTERN_2;
2521 I915_WRITE(reg, temp);
2523 reg = FDI_RX_CTL(pipe);
2524 temp = I915_READ(reg);
2525 temp &= ~FDI_LINK_TRAIN_NONE;
2526 temp |= FDI_LINK_TRAIN_PATTERN_2;
2527 I915_WRITE(reg, temp);
2532 reg = FDI_RX_IIR(pipe);
2533 for (tries = 0; tries < 5; tries++) {
2534 temp = I915_READ(reg);
2535 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2537 if (temp & FDI_RX_SYMBOL_LOCK) {
2538 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2539 DRM_DEBUG_KMS("FDI train 2 done.\n");
2544 DRM_ERROR("FDI train 2 fail!\n");
2546 DRM_DEBUG_KMS("FDI train done\n");
2550 static const int snb_b_fdi_train_param[] = {
2551 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
2552 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
2553 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
2554 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
2557 /* The FDI link training functions for SNB/Cougarpoint. */
2558 static void gen6_fdi_link_train(struct drm_crtc *crtc)
2560 struct drm_device *dev = crtc->dev;
2561 struct drm_i915_private *dev_priv = dev->dev_private;
2562 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2563 int pipe = intel_crtc->pipe;
2564 u32 reg, temp, i, retry;
2566 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2568 reg = FDI_RX_IMR(pipe);
2569 temp = I915_READ(reg);
2570 temp &= ~FDI_RX_SYMBOL_LOCK;
2571 temp &= ~FDI_RX_BIT_LOCK;
2572 I915_WRITE(reg, temp);
2577 /* enable CPU FDI TX and PCH FDI RX */
2578 reg = FDI_TX_CTL(pipe);
2579 temp = I915_READ(reg);
2580 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2581 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2582 temp &= ~FDI_LINK_TRAIN_NONE;
2583 temp |= FDI_LINK_TRAIN_PATTERN_1;
2584 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2586 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2587 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2589 I915_WRITE(FDI_RX_MISC(pipe),
2590 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2592 reg = FDI_RX_CTL(pipe);
2593 temp = I915_READ(reg);
2594 if (HAS_PCH_CPT(dev)) {
2595 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2596 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2598 temp &= ~FDI_LINK_TRAIN_NONE;
2599 temp |= FDI_LINK_TRAIN_PATTERN_1;
2601 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2606 for (i = 0; i < 4; i++) {
2607 reg = FDI_TX_CTL(pipe);
2608 temp = I915_READ(reg);
2609 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2610 temp |= snb_b_fdi_train_param[i];
2611 I915_WRITE(reg, temp);
2616 for (retry = 0; retry < 5; retry++) {
2617 reg = FDI_RX_IIR(pipe);
2618 temp = I915_READ(reg);
2619 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2620 if (temp & FDI_RX_BIT_LOCK) {
2621 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2622 DRM_DEBUG_KMS("FDI train 1 done.\n");
2631 DRM_ERROR("FDI train 1 fail!\n");
2634 reg = FDI_TX_CTL(pipe);
2635 temp = I915_READ(reg);
2636 temp &= ~FDI_LINK_TRAIN_NONE;
2637 temp |= FDI_LINK_TRAIN_PATTERN_2;
2639 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2641 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2643 I915_WRITE(reg, temp);
2645 reg = FDI_RX_CTL(pipe);
2646 temp = I915_READ(reg);
2647 if (HAS_PCH_CPT(dev)) {
2648 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2649 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2651 temp &= ~FDI_LINK_TRAIN_NONE;
2652 temp |= FDI_LINK_TRAIN_PATTERN_2;
2654 I915_WRITE(reg, temp);
2659 for (i = 0; i < 4; i++) {
2660 reg = FDI_TX_CTL(pipe);
2661 temp = I915_READ(reg);
2662 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2663 temp |= snb_b_fdi_train_param[i];
2664 I915_WRITE(reg, temp);
2669 for (retry = 0; retry < 5; retry++) {
2670 reg = FDI_RX_IIR(pipe);
2671 temp = I915_READ(reg);
2672 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2673 if (temp & FDI_RX_SYMBOL_LOCK) {
2674 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2675 DRM_DEBUG_KMS("FDI train 2 done.\n");
2684 DRM_ERROR("FDI train 2 fail!\n");
2686 DRM_DEBUG_KMS("FDI train done.\n");
2689 /* Manual link training for Ivy Bridge A0 parts */
2690 static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
2692 struct drm_device *dev = crtc->dev;
2693 struct drm_i915_private *dev_priv = dev->dev_private;
2694 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2695 int pipe = intel_crtc->pipe;
2696 u32 reg, temp, i, j;
2698 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2700 reg = FDI_RX_IMR(pipe);
2701 temp = I915_READ(reg);
2702 temp &= ~FDI_RX_SYMBOL_LOCK;
2703 temp &= ~FDI_RX_BIT_LOCK;
2704 I915_WRITE(reg, temp);
2709 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2710 I915_READ(FDI_RX_IIR(pipe)));
2712 /* Try each vswing and preemphasis setting twice before moving on */
2713 for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) {
2714 /* disable first in case we need to retry */
2715 reg = FDI_TX_CTL(pipe);
2716 temp = I915_READ(reg);
2717 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
2718 temp &= ~FDI_TX_ENABLE;
2719 I915_WRITE(reg, temp);
2721 reg = FDI_RX_CTL(pipe);
2722 temp = I915_READ(reg);
2723 temp &= ~FDI_LINK_TRAIN_AUTO;
2724 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2725 temp &= ~FDI_RX_ENABLE;
2726 I915_WRITE(reg, temp);
2728 /* enable CPU FDI TX and PCH FDI RX */
2729 reg = FDI_TX_CTL(pipe);
2730 temp = I915_READ(reg);
2731 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2732 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2733 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
2734 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2735 temp |= snb_b_fdi_train_param[j/2];
2736 temp |= FDI_COMPOSITE_SYNC;
2737 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2739 I915_WRITE(FDI_RX_MISC(pipe),
2740 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2742 reg = FDI_RX_CTL(pipe);
2743 temp = I915_READ(reg);
2744 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2745 temp |= FDI_COMPOSITE_SYNC;
2746 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2749 udelay(1); /* should be 0.5us */
2751 for (i = 0; i < 4; i++) {
2752 reg = FDI_RX_IIR(pipe);
2753 temp = I915_READ(reg);
2754 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2756 if (temp & FDI_RX_BIT_LOCK ||
2757 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
2758 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2759 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
2763 udelay(1); /* should be 0.5us */
2766 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2);
2771 reg = FDI_TX_CTL(pipe);
2772 temp = I915_READ(reg);
2773 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2774 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
2775 I915_WRITE(reg, temp);
2777 reg = FDI_RX_CTL(pipe);
2778 temp = I915_READ(reg);
2779 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2780 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2781 I915_WRITE(reg, temp);
2784 udelay(2); /* should be 1.5us */
2786 for (i = 0; i < 4; i++) {
2787 reg = FDI_RX_IIR(pipe);
2788 temp = I915_READ(reg);
2789 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2791 if (temp & FDI_RX_SYMBOL_LOCK ||
2792 (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) {
2793 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2794 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
2798 udelay(2); /* should be 1.5us */
2801 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2);
2805 DRM_DEBUG_KMS("FDI train done.\n");
2808 static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
2810 struct drm_device *dev = intel_crtc->base.dev;
2811 struct drm_i915_private *dev_priv = dev->dev_private;
2812 int pipe = intel_crtc->pipe;
2816 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2817 reg = FDI_RX_CTL(pipe);
2818 temp = I915_READ(reg);
2819 temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
2820 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2821 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2822 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
2827 /* Switch from Rawclk to PCDclk */
2828 temp = I915_READ(reg);
2829 I915_WRITE(reg, temp | FDI_PCDCLK);
2834 /* Enable CPU FDI TX PLL, always on for Ironlake */
2835 reg = FDI_TX_CTL(pipe);
2836 temp = I915_READ(reg);
2837 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
2838 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
2845 static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
2847 struct drm_device *dev = intel_crtc->base.dev;
2848 struct drm_i915_private *dev_priv = dev->dev_private;
2849 int pipe = intel_crtc->pipe;
2852 /* Switch from PCDclk to Rawclk */
2853 reg = FDI_RX_CTL(pipe);
2854 temp = I915_READ(reg);
2855 I915_WRITE(reg, temp & ~FDI_PCDCLK);
2857 /* Disable CPU FDI TX PLL */
2858 reg = FDI_TX_CTL(pipe);
2859 temp = I915_READ(reg);
2860 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
2865 reg = FDI_RX_CTL(pipe);
2866 temp = I915_READ(reg);
2867 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
2869 /* Wait for the clocks to turn off. */
2874 static void ironlake_fdi_disable(struct drm_crtc *crtc)
2876 struct drm_device *dev = crtc->dev;
2877 struct drm_i915_private *dev_priv = dev->dev_private;
2878 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2879 int pipe = intel_crtc->pipe;
2882 /* disable CPU FDI tx and PCH FDI rx */
2883 reg = FDI_TX_CTL(pipe);
2884 temp = I915_READ(reg);
2885 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
2888 reg = FDI_RX_CTL(pipe);
2889 temp = I915_READ(reg);
2890 temp &= ~(0x7 << 16);
2891 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2892 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
2897 /* Ironlake workaround, disable clock pointer after downing FDI */
2898 if (HAS_PCH_IBX(dev)) {
2899 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2902 /* still set train pattern 1 */
2903 reg = FDI_TX_CTL(pipe);
2904 temp = I915_READ(reg);
2905 temp &= ~FDI_LINK_TRAIN_NONE;
2906 temp |= FDI_LINK_TRAIN_PATTERN_1;
2907 I915_WRITE(reg, temp);
2909 reg = FDI_RX_CTL(pipe);
2910 temp = I915_READ(reg);
2911 if (HAS_PCH_CPT(dev)) {
2912 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2913 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2915 temp &= ~FDI_LINK_TRAIN_NONE;
2916 temp |= FDI_LINK_TRAIN_PATTERN_1;
2918 /* BPC in FDI rx is consistent with that in PIPECONF */
2919 temp &= ~(0x07 << 16);
2920 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2921 I915_WRITE(reg, temp);
2927 static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
2929 struct drm_device *dev = crtc->dev;
2930 struct drm_i915_private *dev_priv = dev->dev_private;
2931 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2932 unsigned long flags;
2935 if (i915_reset_in_progress(&dev_priv->gpu_error) ||
2936 intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
2939 spin_lock_irqsave(&dev->event_lock, flags);
2940 pending = to_intel_crtc(crtc)->unpin_work != NULL;
2941 spin_unlock_irqrestore(&dev->event_lock, flags);
2946 static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
2948 struct drm_device *dev = crtc->dev;
2949 struct drm_i915_private *dev_priv = dev->dev_private;
2951 if (crtc->fb == NULL)
2954 WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
2956 wait_event(dev_priv->pending_flip_queue,
2957 !intel_crtc_has_pending_flip(crtc));
2959 mutex_lock(&dev->struct_mutex);
2960 intel_finish_fb(crtc->fb);
2961 mutex_unlock(&dev->struct_mutex);
2964 /* Program iCLKIP clock to the desired frequency */
2965 static void lpt_program_iclkip(struct drm_crtc *crtc)
2967 struct drm_device *dev = crtc->dev;
2968 struct drm_i915_private *dev_priv = dev->dev_private;
2969 int clock = to_intel_crtc(crtc)->config.adjusted_mode.crtc_clock;
2970 u32 divsel, phaseinc, auxdiv, phasedir = 0;
2973 mutex_lock(&dev_priv->dpio_lock);
2975 /* It is necessary to ungate the pixclk gate prior to programming
2976 * the divisors, and gate it back when it is done.
2978 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
2980 /* Disable SSCCTL */
2981 intel_sbi_write(dev_priv, SBI_SSCCTL6,
2982 intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) |
2986 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
2987 if (clock == 20000) {
2992 /* The iCLK virtual clock root frequency is in MHz,
2993 * but the adjusted_mode->crtc_clock in in KHz. To get the
2994 * divisors, it is necessary to divide one by another, so we
2995 * convert the virtual clock precision to KHz here for higher
2998 u32 iclk_virtual_root_freq = 172800 * 1000;
2999 u32 iclk_pi_range = 64;
3000 u32 desired_divisor, msb_divisor_value, pi_value;
3002 desired_divisor = (iclk_virtual_root_freq / clock);
3003 msb_divisor_value = desired_divisor / iclk_pi_range;
3004 pi_value = desired_divisor % iclk_pi_range;
3007 divsel = msb_divisor_value - 2;
3008 phaseinc = pi_value;
3011 /* This should not happen with any sane values */
3012 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
3013 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
3014 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
3015 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
3017 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3024 /* Program SSCDIVINTPHASE6 */
3025 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
3026 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
3027 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
3028 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
3029 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
3030 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
3031 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
3032 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
3034 /* Program SSCAUXDIV */
3035 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
3036 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3037 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
3038 intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
3040 /* Enable modulator and associated divider */
3041 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
3042 temp &= ~SBI_SSCCTL_DISABLE;
3043 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
3045 /* Wait for initialization time */
3048 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
3050 mutex_unlock(&dev_priv->dpio_lock);
3053 static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc,
3054 enum pipe pch_transcoder)
3056 struct drm_device *dev = crtc->base.dev;
3057 struct drm_i915_private *dev_priv = dev->dev_private;
3058 enum transcoder cpu_transcoder = crtc->config.cpu_transcoder;
3060 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder),
3061 I915_READ(HTOTAL(cpu_transcoder)));
3062 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder),
3063 I915_READ(HBLANK(cpu_transcoder)));
3064 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder),
3065 I915_READ(HSYNC(cpu_transcoder)));
3067 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder),
3068 I915_READ(VTOTAL(cpu_transcoder)));
3069 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder),
3070 I915_READ(VBLANK(cpu_transcoder)));
3071 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder),
3072 I915_READ(VSYNC(cpu_transcoder)));
3073 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder),
3074 I915_READ(VSYNCSHIFT(cpu_transcoder)));
3078 * Enable PCH resources required for PCH ports:
3080 * - FDI training & RX/TX
3081 * - update transcoder timings
3082 * - DP transcoding bits
3085 static void ironlake_pch_enable(struct drm_crtc *crtc)
3087 struct drm_device *dev = crtc->dev;
3088 struct drm_i915_private *dev_priv = dev->dev_private;
3089 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3090 int pipe = intel_crtc->pipe;
3093 assert_pch_transcoder_disabled(dev_priv, pipe);
3095 /* Write the TU size bits before fdi link training, so that error
3096 * detection works. */
3097 I915_WRITE(FDI_RX_TUSIZE1(pipe),
3098 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
3100 /* For PCH output, training FDI link */
3101 dev_priv->display.fdi_link_train(crtc);
3103 /* We need to program the right clock selection before writing the pixel
3104 * mutliplier into the DPLL. */
3105 if (HAS_PCH_CPT(dev)) {
3108 temp = I915_READ(PCH_DPLL_SEL);
3109 temp |= TRANS_DPLL_ENABLE(pipe);
3110 sel = TRANS_DPLLB_SEL(pipe);
3111 if (intel_crtc->config.shared_dpll == DPLL_ID_PCH_PLL_B)
3115 I915_WRITE(PCH_DPLL_SEL, temp);
3118 /* XXX: pch pll's can be enabled any time before we enable the PCH
3119 * transcoder, and we actually should do this to not upset any PCH
3120 * transcoder that already use the clock when we share it.
3122 * Note that enable_shared_dpll tries to do the right thing, but
3123 * get_shared_dpll unconditionally resets the pll - we need that to have
3124 * the right LVDS enable sequence. */
3125 ironlake_enable_shared_dpll(intel_crtc);
3127 /* set transcoder timing, panel must allow it */
3128 assert_panel_unlocked(dev_priv, pipe);
3129 ironlake_pch_transcoder_set_timings(intel_crtc, pipe);
3131 intel_fdi_normal_train(crtc);
3133 /* For PCH DP, enable TRANS_DP_CTL */
3134 if (HAS_PCH_CPT(dev) &&
3135 (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
3136 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
3137 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
3138 reg = TRANS_DP_CTL(pipe);
3139 temp = I915_READ(reg);
3140 temp &= ~(TRANS_DP_PORT_SEL_MASK |
3141 TRANS_DP_SYNC_MASK |
3143 temp |= (TRANS_DP_OUTPUT_ENABLE |
3144 TRANS_DP_ENH_FRAMING);
3145 temp |= bpc << 9; /* same format but at 11:9 */
3147 if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
3148 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
3149 if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
3150 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
3152 switch (intel_trans_dp_port_sel(crtc)) {
3154 temp |= TRANS_DP_PORT_SEL_B;
3157 temp |= TRANS_DP_PORT_SEL_C;
3160 temp |= TRANS_DP_PORT_SEL_D;
3166 I915_WRITE(reg, temp);
3169 ironlake_enable_pch_transcoder(dev_priv, pipe);
3172 static void lpt_pch_enable(struct drm_crtc *crtc)
3174 struct drm_device *dev = crtc->dev;
3175 struct drm_i915_private *dev_priv = dev->dev_private;
3176 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3177 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
3179 assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
3181 lpt_program_iclkip(crtc);
3183 /* Set transcoder timing. */
3184 ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A);
3186 lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
3189 static void intel_put_shared_dpll(struct intel_crtc *crtc)
3191 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
3196 if (pll->refcount == 0) {
3197 WARN(1, "bad %s refcount\n", pll->name);
3201 if (--pll->refcount == 0) {
3203 WARN_ON(pll->active);
3206 crtc->config.shared_dpll = DPLL_ID_PRIVATE;
3209 static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc)
3211 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
3212 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
3213 enum intel_dpll_id i;
3216 DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
3217 crtc->base.base.id, pll->name);
3218 intel_put_shared_dpll(crtc);
3221 if (HAS_PCH_IBX(dev_priv->dev)) {
3222 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3223 i = (enum intel_dpll_id) crtc->pipe;
3224 pll = &dev_priv->shared_dplls[i];
3226 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
3227 crtc->base.base.id, pll->name);
3232 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3233 pll = &dev_priv->shared_dplls[i];
3235 /* Only want to check enabled timings first */
3236 if (pll->refcount == 0)
3239 if (memcmp(&crtc->config.dpll_hw_state, &pll->hw_state,
3240 sizeof(pll->hw_state)) == 0) {
3241 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
3243 pll->name, pll->refcount, pll->active);
3249 /* Ok no matching timings, maybe there's a free one? */
3250 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3251 pll = &dev_priv->shared_dplls[i];
3252 if (pll->refcount == 0) {
3253 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
3254 crtc->base.base.id, pll->name);
3262 crtc->config.shared_dpll = i;
3263 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name,
3264 pipe_name(crtc->pipe));
3266 if (pll->active == 0) {
3267 memcpy(&pll->hw_state, &crtc->config.dpll_hw_state,
3268 sizeof(pll->hw_state));
3270 DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
3272 assert_shared_dpll_disabled(dev_priv, pll);
3274 pll->mode_set(dev_priv, pll);
3281 static void cpt_verify_modeset(struct drm_device *dev, int pipe)
3283 struct drm_i915_private *dev_priv = dev->dev_private;
3284 int dslreg = PIPEDSL(pipe);
3287 temp = I915_READ(dslreg);
3289 if (wait_for(I915_READ(dslreg) != temp, 5)) {
3290 if (wait_for(I915_READ(dslreg) != temp, 5))
3291 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe));
3295 static void ironlake_pfit_enable(struct intel_crtc *crtc)
3297 struct drm_device *dev = crtc->base.dev;
3298 struct drm_i915_private *dev_priv = dev->dev_private;
3299 int pipe = crtc->pipe;
3301 if (crtc->config.pch_pfit.enabled) {
3302 /* Force use of hard-coded filter coefficients
3303 * as some pre-programmed values are broken,
3306 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
3307 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
3308 PF_PIPE_SEL_IVB(pipe));
3310 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
3311 I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos);
3312 I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size);
3316 static void intel_enable_planes(struct drm_crtc *crtc)
3318 struct drm_device *dev = crtc->dev;
3319 enum pipe pipe = to_intel_crtc(crtc)->pipe;
3320 struct intel_plane *intel_plane;
3322 list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head)
3323 if (intel_plane->pipe == pipe)
3324 intel_plane_restore(&intel_plane->base);
3327 static void intel_disable_planes(struct drm_crtc *crtc)
3329 struct drm_device *dev = crtc->dev;
3330 enum pipe pipe = to_intel_crtc(crtc)->pipe;
3331 struct intel_plane *intel_plane;
3333 list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head)
3334 if (intel_plane->pipe == pipe)
3335 intel_plane_disable(&intel_plane->base);
3338 void hsw_enable_ips(struct intel_crtc *crtc)
3340 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
3342 if (!crtc->config.ips_enabled)
3345 /* We can only enable IPS after we enable a plane and wait for a vblank.
3346 * We guarantee that the plane is enabled by calling intel_enable_ips
3347 * only after intel_enable_plane. And intel_enable_plane already waits
3348 * for a vblank, so all we need to do here is to enable the IPS bit. */
3349 assert_plane_enabled(dev_priv, crtc->plane);
3350 I915_WRITE(IPS_CTL, IPS_ENABLE);
3352 /* The bit only becomes 1 in the next vblank, so this wait here is
3353 * essentially intel_wait_for_vblank. If we don't have this and don't
3354 * wait for vblanks until the end of crtc_enable, then the HW state
3355 * readout code will complain that the expected IPS_CTL value is not the
3357 if (wait_for(I915_READ_NOTRACE(IPS_CTL) & IPS_ENABLE, 50))
3358 DRM_ERROR("Timed out waiting for IPS enable\n");
3361 void hsw_disable_ips(struct intel_crtc *crtc)
3363 struct drm_device *dev = crtc->base.dev;
3364 struct drm_i915_private *dev_priv = dev->dev_private;
3366 if (!crtc->config.ips_enabled)
3369 assert_plane_enabled(dev_priv, crtc->plane);
3370 I915_WRITE(IPS_CTL, 0);
3371 POSTING_READ(IPS_CTL);
3373 /* We need to wait for a vblank before we can disable the plane. */
3374 intel_wait_for_vblank(dev, crtc->pipe);
3377 /** Loads the palette/gamma unit for the CRTC with the prepared values */
3378 static void intel_crtc_load_lut(struct drm_crtc *crtc)
3380 struct drm_device *dev = crtc->dev;
3381 struct drm_i915_private *dev_priv = dev->dev_private;
3382 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3383 enum pipe pipe = intel_crtc->pipe;
3384 int palreg = PALETTE(pipe);
3386 bool reenable_ips = false;
3388 /* The clocks have to be on to load the palette. */
3389 if (!crtc->enabled || !intel_crtc->active)
3392 if (!HAS_PCH_SPLIT(dev_priv->dev)) {
3393 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI))
3394 assert_dsi_pll_enabled(dev_priv);
3396 assert_pll_enabled(dev_priv, pipe);
3399 /* use legacy palette for Ironlake */
3400 if (HAS_PCH_SPLIT(dev))
3401 palreg = LGC_PALETTE(pipe);
3403 /* Workaround : Do not read or write the pipe palette/gamma data while
3404 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
3406 if (intel_crtc->config.ips_enabled &&
3407 ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) ==
3408 GAMMA_MODE_MODE_SPLIT)) {
3409 hsw_disable_ips(intel_crtc);
3410 reenable_ips = true;
3413 for (i = 0; i < 256; i++) {
3414 I915_WRITE(palreg + 4 * i,
3415 (intel_crtc->lut_r[i] << 16) |
3416 (intel_crtc->lut_g[i] << 8) |
3417 intel_crtc->lut_b[i]);
3421 hsw_enable_ips(intel_crtc);
3424 static void ironlake_crtc_enable(struct drm_crtc *crtc)
3426 struct drm_device *dev = crtc->dev;
3427 struct drm_i915_private *dev_priv = dev->dev_private;
3428 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3429 struct intel_encoder *encoder;
3430 int pipe = intel_crtc->pipe;
3431 int plane = intel_crtc->plane;
3433 WARN_ON(!crtc->enabled);
3435 if (intel_crtc->active)
3438 intel_crtc->active = true;
3440 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3441 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3443 for_each_encoder_on_crtc(dev, crtc, encoder)
3444 if (encoder->pre_enable)
3445 encoder->pre_enable(encoder);
3447 if (intel_crtc->config.has_pch_encoder) {
3448 /* Note: FDI PLL enabling _must_ be done before we enable the
3449 * cpu pipes, hence this is separate from all the other fdi/pch
3451 ironlake_fdi_pll_enable(intel_crtc);
3453 assert_fdi_tx_disabled(dev_priv, pipe);
3454 assert_fdi_rx_disabled(dev_priv, pipe);
3457 ironlake_pfit_enable(intel_crtc);
3460 * On ILK+ LUT must be loaded before the pipe is running but with
3463 intel_crtc_load_lut(crtc);
3465 intel_update_watermarks(crtc);
3466 intel_enable_pipe(dev_priv, pipe,
3467 intel_crtc->config.has_pch_encoder, false);
3468 intel_enable_primary_plane(dev_priv, plane, pipe);
3469 intel_enable_planes(crtc);
3470 intel_crtc_update_cursor(crtc, true);
3472 if (intel_crtc->config.has_pch_encoder)
3473 ironlake_pch_enable(crtc);
3475 mutex_lock(&dev->struct_mutex);
3476 intel_update_fbc(dev);
3477 mutex_unlock(&dev->struct_mutex);
3479 for_each_encoder_on_crtc(dev, crtc, encoder)
3480 encoder->enable(encoder);
3482 if (HAS_PCH_CPT(dev))
3483 cpt_verify_modeset(dev, intel_crtc->pipe);
3486 * There seems to be a race in PCH platform hw (at least on some
3487 * outputs) where an enabled pipe still completes any pageflip right
3488 * away (as if the pipe is off) instead of waiting for vblank. As soon
3489 * as the first vblank happend, everything works as expected. Hence just
3490 * wait for one vblank before returning to avoid strange things
3493 intel_wait_for_vblank(dev, intel_crtc->pipe);
3496 /* IPS only exists on ULT machines and is tied to pipe A. */
3497 static bool hsw_crtc_supports_ips(struct intel_crtc *crtc)
3499 return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A;
3502 static void haswell_crtc_enable_planes(struct drm_crtc *crtc)
3504 struct drm_device *dev = crtc->dev;
3505 struct drm_i915_private *dev_priv = dev->dev_private;
3506 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3507 int pipe = intel_crtc->pipe;
3508 int plane = intel_crtc->plane;
3510 intel_enable_primary_plane(dev_priv, plane, pipe);
3511 intel_enable_planes(crtc);
3512 intel_crtc_update_cursor(crtc, true);
3514 hsw_enable_ips(intel_crtc);
3516 mutex_lock(&dev->struct_mutex);
3517 intel_update_fbc(dev);
3518 mutex_unlock(&dev->struct_mutex);
3521 static void haswell_crtc_disable_planes(struct drm_crtc *crtc)
3523 struct drm_device *dev = crtc->dev;
3524 struct drm_i915_private *dev_priv = dev->dev_private;
3525 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3526 int pipe = intel_crtc->pipe;
3527 int plane = intel_crtc->plane;
3529 intel_crtc_wait_for_pending_flips(crtc);
3530 drm_vblank_off(dev, pipe);
3532 /* FBC must be disabled before disabling the plane on HSW. */
3533 if (dev_priv->fbc.plane == plane)
3534 intel_disable_fbc(dev);
3536 hsw_disable_ips(intel_crtc);
3538 intel_crtc_update_cursor(crtc, false);
3539 intel_disable_planes(crtc);
3540 intel_disable_primary_plane(dev_priv, plane, pipe);
3544 * This implements the workaround described in the "notes" section of the mode
3545 * set sequence documentation. When going from no pipes or single pipe to
3546 * multiple pipes, and planes are enabled after the pipe, we need to wait at
3547 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
3549 static void haswell_mode_set_planes_workaround(struct intel_crtc *crtc)
3551 struct drm_device *dev = crtc->base.dev;
3552 struct intel_crtc *crtc_it, *other_active_crtc = NULL;
3554 /* We want to get the other_active_crtc only if there's only 1 other
3556 list_for_each_entry(crtc_it, &dev->mode_config.crtc_list, base.head) {
3557 if (!crtc_it->active || crtc_it == crtc)
3560 if (other_active_crtc)
3563 other_active_crtc = crtc_it;
3565 if (!other_active_crtc)
3568 intel_wait_for_vblank(dev, other_active_crtc->pipe);
3569 intel_wait_for_vblank(dev, other_active_crtc->pipe);
3572 static void haswell_crtc_enable(struct drm_crtc *crtc)
3574 struct drm_device *dev = crtc->dev;
3575 struct drm_i915_private *dev_priv = dev->dev_private;
3576 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3577 struct intel_encoder *encoder;
3578 int pipe = intel_crtc->pipe;
3580 WARN_ON(!crtc->enabled);
3582 if (intel_crtc->active)
3585 intel_crtc->active = true;
3587 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3588 if (intel_crtc->config.has_pch_encoder)
3589 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3591 if (intel_crtc->config.has_pch_encoder)
3592 dev_priv->display.fdi_link_train(crtc);
3594 for_each_encoder_on_crtc(dev, crtc, encoder)
3595 if (encoder->pre_enable)
3596 encoder->pre_enable(encoder);
3598 intel_ddi_enable_pipe_clock(intel_crtc);
3600 ironlake_pfit_enable(intel_crtc);
3603 * On ILK+ LUT must be loaded before the pipe is running but with
3606 intel_crtc_load_lut(crtc);
3608 intel_ddi_set_pipe_settings(crtc);
3609 intel_ddi_enable_transcoder_func(crtc);
3611 intel_update_watermarks(crtc);
3612 intel_enable_pipe(dev_priv, pipe,
3613 intel_crtc->config.has_pch_encoder, false);
3615 if (intel_crtc->config.has_pch_encoder)
3616 lpt_pch_enable(crtc);
3618 for_each_encoder_on_crtc(dev, crtc, encoder) {
3619 encoder->enable(encoder);
3620 intel_opregion_notify_encoder(encoder, true);
3623 /* If we change the relative order between pipe/planes enabling, we need
3624 * to change the workaround. */
3625 haswell_mode_set_planes_workaround(intel_crtc);
3626 haswell_crtc_enable_planes(crtc);
3629 * There seems to be a race in PCH platform hw (at least on some
3630 * outputs) where an enabled pipe still completes any pageflip right
3631 * away (as if the pipe is off) instead of waiting for vblank. As soon
3632 * as the first vblank happend, everything works as expected. Hence just
3633 * wait for one vblank before returning to avoid strange things
3636 intel_wait_for_vblank(dev, intel_crtc->pipe);
3639 static void ironlake_pfit_disable(struct intel_crtc *crtc)
3641 struct drm_device *dev = crtc->base.dev;
3642 struct drm_i915_private *dev_priv = dev->dev_private;
3643 int pipe = crtc->pipe;
3645 /* To avoid upsetting the power well on haswell only disable the pfit if
3646 * it's in use. The hw state code will make sure we get this right. */
3647 if (crtc->config.pch_pfit.enabled) {
3648 I915_WRITE(PF_CTL(pipe), 0);
3649 I915_WRITE(PF_WIN_POS(pipe), 0);
3650 I915_WRITE(PF_WIN_SZ(pipe), 0);
3654 static void ironlake_crtc_disable(struct drm_crtc *crtc)
3656 struct drm_device *dev = crtc->dev;
3657 struct drm_i915_private *dev_priv = dev->dev_private;
3658 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3659 struct intel_encoder *encoder;
3660 int pipe = intel_crtc->pipe;
3661 int plane = intel_crtc->plane;
3665 if (!intel_crtc->active)
3668 for_each_encoder_on_crtc(dev, crtc, encoder)
3669 encoder->disable(encoder);
3671 intel_crtc_wait_for_pending_flips(crtc);
3672 drm_vblank_off(dev, pipe);
3674 if (dev_priv->fbc.plane == plane)
3675 intel_disable_fbc(dev);
3677 intel_crtc_update_cursor(crtc, false);
3678 intel_disable_planes(crtc);
3679 intel_disable_primary_plane(dev_priv, plane, pipe);
3681 if (intel_crtc->config.has_pch_encoder)
3682 intel_set_pch_fifo_underrun_reporting(dev, pipe, false);
3684 intel_disable_pipe(dev_priv, pipe);
3686 ironlake_pfit_disable(intel_crtc);
3688 for_each_encoder_on_crtc(dev, crtc, encoder)
3689 if (encoder->post_disable)
3690 encoder->post_disable(encoder);
3692 if (intel_crtc->config.has_pch_encoder) {
3693 ironlake_fdi_disable(crtc);
3695 ironlake_disable_pch_transcoder(dev_priv, pipe);
3696 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3698 if (HAS_PCH_CPT(dev)) {
3699 /* disable TRANS_DP_CTL */
3700 reg = TRANS_DP_CTL(pipe);
3701 temp = I915_READ(reg);
3702 temp &= ~(TRANS_DP_OUTPUT_ENABLE |
3703 TRANS_DP_PORT_SEL_MASK);
3704 temp |= TRANS_DP_PORT_SEL_NONE;
3705 I915_WRITE(reg, temp);
3707 /* disable DPLL_SEL */
3708 temp = I915_READ(PCH_DPLL_SEL);
3709 temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe));
3710 I915_WRITE(PCH_DPLL_SEL, temp);
3713 /* disable PCH DPLL */
3714 intel_disable_shared_dpll(intel_crtc);
3716 ironlake_fdi_pll_disable(intel_crtc);
3719 intel_crtc->active = false;
3720 intel_update_watermarks(crtc);
3722 mutex_lock(&dev->struct_mutex);
3723 intel_update_fbc(dev);
3724 mutex_unlock(&dev->struct_mutex);
3727 static void haswell_crtc_disable(struct drm_crtc *crtc)
3729 struct drm_device *dev = crtc->dev;
3730 struct drm_i915_private *dev_priv = dev->dev_private;
3731 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3732 struct intel_encoder *encoder;
3733 int pipe = intel_crtc->pipe;
3734 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
3736 if (!intel_crtc->active)
3739 haswell_crtc_disable_planes(crtc);
3741 for_each_encoder_on_crtc(dev, crtc, encoder) {
3742 intel_opregion_notify_encoder(encoder, false);
3743 encoder->disable(encoder);
3746 if (intel_crtc->config.has_pch_encoder)
3747 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false);
3748 intel_disable_pipe(dev_priv, pipe);
3750 intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
3752 ironlake_pfit_disable(intel_crtc);
3754 intel_ddi_disable_pipe_clock(intel_crtc);
3756 for_each_encoder_on_crtc(dev, crtc, encoder)
3757 if (encoder->post_disable)
3758 encoder->post_disable(encoder);
3760 if (intel_crtc->config.has_pch_encoder) {
3761 lpt_disable_pch_transcoder(dev_priv);
3762 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3763 intel_ddi_fdi_disable(crtc);
3766 intel_crtc->active = false;
3767 intel_update_watermarks(crtc);
3769 mutex_lock(&dev->struct_mutex);
3770 intel_update_fbc(dev);
3771 mutex_unlock(&dev->struct_mutex);
3774 static void ironlake_crtc_off(struct drm_crtc *crtc)
3776 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3777 intel_put_shared_dpll(intel_crtc);
3780 static void haswell_crtc_off(struct drm_crtc *crtc)
3782 intel_ddi_put_crtc_pll(crtc);
3785 static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
3787 if (!enable && intel_crtc->overlay) {
3788 struct drm_device *dev = intel_crtc->base.dev;
3789 struct drm_i915_private *dev_priv = dev->dev_private;
3791 mutex_lock(&dev->struct_mutex);
3792 dev_priv->mm.interruptible = false;
3793 (void) intel_overlay_switch_off(intel_crtc->overlay);
3794 dev_priv->mm.interruptible = true;
3795 mutex_unlock(&dev->struct_mutex);
3798 /* Let userspace switch the overlay on again. In most cases userspace
3799 * has to recompute where to put it anyway.
3804 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
3805 * cursor plane briefly if not already running after enabling the display
3807 * This workaround avoids occasional blank screens when self refresh is
3811 g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe)
3813 u32 cntl = I915_READ(CURCNTR(pipe));
3815 if ((cntl & CURSOR_MODE) == 0) {
3816 u32 fw_bcl_self = I915_READ(FW_BLC_SELF);
3818 I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN);
3819 I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX);
3820 intel_wait_for_vblank(dev_priv->dev, pipe);
3821 I915_WRITE(CURCNTR(pipe), cntl);
3822 I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe)));
3823 I915_WRITE(FW_BLC_SELF, fw_bcl_self);
3827 static void i9xx_pfit_enable(struct intel_crtc *crtc)
3829 struct drm_device *dev = crtc->base.dev;
3830 struct drm_i915_private *dev_priv = dev->dev_private;
3831 struct intel_crtc_config *pipe_config = &crtc->config;
3833 if (!crtc->config.gmch_pfit.control)
3837 * The panel fitter should only be adjusted whilst the pipe is disabled,
3838 * according to register description and PRM.
3840 WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
3841 assert_pipe_disabled(dev_priv, crtc->pipe);
3843 I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios);
3844 I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control);
3846 /* Border color in case we don't scale up to the full screen. Black by
3847 * default, change to something else for debugging. */
3848 I915_WRITE(BCLRPAT(crtc->pipe), 0);
3851 static void valleyview_crtc_enable(struct drm_crtc *crtc)
3853 struct drm_device *dev = crtc->dev;
3854 struct drm_i915_private *dev_priv = dev->dev_private;
3855 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3856 struct intel_encoder *encoder;
3857 int pipe = intel_crtc->pipe;
3858 int plane = intel_crtc->plane;
3861 WARN_ON(!crtc->enabled);
3863 if (intel_crtc->active)
3866 intel_crtc->active = true;
3868 for_each_encoder_on_crtc(dev, crtc, encoder)
3869 if (encoder->pre_pll_enable)
3870 encoder->pre_pll_enable(encoder);
3872 is_dsi = intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI);
3875 vlv_enable_pll(intel_crtc);
3877 for_each_encoder_on_crtc(dev, crtc, encoder)
3878 if (encoder->pre_enable)
3879 encoder->pre_enable(encoder);
3881 i9xx_pfit_enable(intel_crtc);
3883 intel_crtc_load_lut(crtc);
3885 intel_update_watermarks(crtc);
3886 intel_enable_pipe(dev_priv, pipe, false, is_dsi);
3887 intel_enable_primary_plane(dev_priv, plane, pipe);
3888 intel_enable_planes(crtc);
3889 intel_crtc_update_cursor(crtc, true);
3891 intel_update_fbc(dev);
3893 for_each_encoder_on_crtc(dev, crtc, encoder)
3894 encoder->enable(encoder);
3897 static void i9xx_crtc_enable(struct drm_crtc *crtc)
3899 struct drm_device *dev = crtc->dev;
3900 struct drm_i915_private *dev_priv = dev->dev_private;
3901 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3902 struct intel_encoder *encoder;
3903 int pipe = intel_crtc->pipe;
3904 int plane = intel_crtc->plane;
3906 WARN_ON(!crtc->enabled);
3908 if (intel_crtc->active)
3911 intel_crtc->active = true;
3913 for_each_encoder_on_crtc(dev, crtc, encoder)
3914 if (encoder->pre_enable)
3915 encoder->pre_enable(encoder);
3917 i9xx_enable_pll(intel_crtc);
3919 i9xx_pfit_enable(intel_crtc);
3921 intel_crtc_load_lut(crtc);
3923 intel_update_watermarks(crtc);
3924 intel_enable_pipe(dev_priv, pipe, false, false);
3925 intel_enable_primary_plane(dev_priv, plane, pipe);
3926 intel_enable_planes(crtc);
3927 /* The fixup needs to happen before cursor is enabled */
3929 g4x_fixup_plane(dev_priv, pipe);
3930 intel_crtc_update_cursor(crtc, true);
3932 /* Give the overlay scaler a chance to enable if it's on this pipe */
3933 intel_crtc_dpms_overlay(intel_crtc, true);
3935 intel_update_fbc(dev);
3937 for_each_encoder_on_crtc(dev, crtc, encoder)
3938 encoder->enable(encoder);
3941 static void i9xx_pfit_disable(struct intel_crtc *crtc)
3943 struct drm_device *dev = crtc->base.dev;
3944 struct drm_i915_private *dev_priv = dev->dev_private;
3946 if (!crtc->config.gmch_pfit.control)
3949 assert_pipe_disabled(dev_priv, crtc->pipe);
3951 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
3952 I915_READ(PFIT_CONTROL));
3953 I915_WRITE(PFIT_CONTROL, 0);
3956 static void i9xx_crtc_disable(struct drm_crtc *crtc)
3958 struct drm_device *dev = crtc->dev;
3959 struct drm_i915_private *dev_priv = dev->dev_private;
3960 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3961 struct intel_encoder *encoder;
3962 int pipe = intel_crtc->pipe;
3963 int plane = intel_crtc->plane;
3965 if (!intel_crtc->active)
3968 for_each_encoder_on_crtc(dev, crtc, encoder)
3969 encoder->disable(encoder);
3971 /* Give the overlay scaler a chance to disable if it's on this pipe */
3972 intel_crtc_wait_for_pending_flips(crtc);
3973 drm_vblank_off(dev, pipe);
3975 if (dev_priv->fbc.plane == plane)
3976 intel_disable_fbc(dev);
3978 intel_crtc_dpms_overlay(intel_crtc, false);
3979 intel_crtc_update_cursor(crtc, false);
3980 intel_disable_planes(crtc);
3981 intel_disable_primary_plane(dev_priv, plane, pipe);
3983 intel_disable_pipe(dev_priv, pipe);
3985 i9xx_pfit_disable(intel_crtc);
3987 for_each_encoder_on_crtc(dev, crtc, encoder)
3988 if (encoder->post_disable)
3989 encoder->post_disable(encoder);
3991 if (IS_VALLEYVIEW(dev) && !intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI))
3992 vlv_disable_pll(dev_priv, pipe);
3993 else if (!IS_VALLEYVIEW(dev))
3994 i9xx_disable_pll(dev_priv, pipe);
3996 intel_crtc->active = false;
3997 intel_update_watermarks(crtc);
3999 intel_update_fbc(dev);
4002 static void i9xx_crtc_off(struct drm_crtc *crtc)
4006 static void intel_crtc_update_sarea(struct drm_crtc *crtc,
4009 struct drm_device *dev = crtc->dev;
4010 struct drm_i915_master_private *master_priv;
4011 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4012 int pipe = intel_crtc->pipe;
4014 if (!dev->primary->master)
4017 master_priv = dev->primary->master->driver_priv;
4018 if (!master_priv->sarea_priv)
4023 master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
4024 master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
4027 master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
4028 master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
4031 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
4037 * Sets the power management mode of the pipe and plane.
4039 void intel_crtc_update_dpms(struct drm_crtc *crtc)
4041 struct drm_device *dev = crtc->dev;
4042 struct drm_i915_private *dev_priv = dev->dev_private;
4043 struct intel_encoder *intel_encoder;
4044 bool enable = false;
4046 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
4047 enable |= intel_encoder->connectors_active;
4050 dev_priv->display.crtc_enable(crtc);
4052 dev_priv->display.crtc_disable(crtc);
4054 intel_crtc_update_sarea(crtc, enable);
4057 static void intel_crtc_disable(struct drm_crtc *crtc)
4059 struct drm_device *dev = crtc->dev;
4060 struct drm_connector *connector;
4061 struct drm_i915_private *dev_priv = dev->dev_private;
4062 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4064 /* crtc should still be enabled when we disable it. */
4065 WARN_ON(!crtc->enabled);
4067 dev_priv->display.crtc_disable(crtc);
4068 intel_crtc->eld_vld = false;
4069 intel_crtc_update_sarea(crtc, false);
4070 dev_priv->display.off(crtc);
4072 assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
4073 assert_cursor_disabled(dev_priv, to_intel_crtc(crtc)->pipe);
4074 assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
4077 mutex_lock(&dev->struct_mutex);
4078 intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
4079 mutex_unlock(&dev->struct_mutex);
4083 /* Update computed state. */
4084 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
4085 if (!connector->encoder || !connector->encoder->crtc)
4088 if (connector->encoder->crtc != crtc)
4091 connector->dpms = DRM_MODE_DPMS_OFF;
4092 to_intel_encoder(connector->encoder)->connectors_active = false;
4096 void intel_encoder_destroy(struct drm_encoder *encoder)
4098 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
4100 drm_encoder_cleanup(encoder);
4101 kfree(intel_encoder);
4104 /* Simple dpms helper for encoders with just one connector, no cloning and only
4105 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
4106 * state of the entire output pipe. */
4107 static void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
4109 if (mode == DRM_MODE_DPMS_ON) {
4110 encoder->connectors_active = true;
4112 intel_crtc_update_dpms(encoder->base.crtc);
4114 encoder->connectors_active = false;
4116 intel_crtc_update_dpms(encoder->base.crtc);
4120 /* Cross check the actual hw state with our own modeset state tracking (and it's
4121 * internal consistency). */
4122 static void intel_connector_check_state(struct intel_connector *connector)
4124 if (connector->get_hw_state(connector)) {
4125 struct intel_encoder *encoder = connector->encoder;
4126 struct drm_crtc *crtc;
4127 bool encoder_enabled;
4130 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
4131 connector->base.base.id,
4132 drm_get_connector_name(&connector->base));
4134 WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
4135 "wrong connector dpms state\n");
4136 WARN(connector->base.encoder != &encoder->base,
4137 "active connector not linked to encoder\n");
4138 WARN(!encoder->connectors_active,
4139 "encoder->connectors_active not set\n");
4141 encoder_enabled = encoder->get_hw_state(encoder, &pipe);
4142 WARN(!encoder_enabled, "encoder not enabled\n");
4143 if (WARN_ON(!encoder->base.crtc))
4146 crtc = encoder->base.crtc;
4148 WARN(!crtc->enabled, "crtc not enabled\n");
4149 WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
4150 WARN(pipe != to_intel_crtc(crtc)->pipe,
4151 "encoder active on the wrong pipe\n");
4155 /* Even simpler default implementation, if there's really no special case to
4157 void intel_connector_dpms(struct drm_connector *connector, int mode)
4159 struct intel_encoder *encoder = intel_attached_encoder(connector);
4161 /* All the simple cases only support two dpms states. */
4162 if (mode != DRM_MODE_DPMS_ON)
4163 mode = DRM_MODE_DPMS_OFF;
4165 if (mode == connector->dpms)
4168 connector->dpms = mode;
4170 /* Only need to change hw state when actually enabled */
4171 if (encoder->base.crtc)
4172 intel_encoder_dpms(encoder, mode);
4174 WARN_ON(encoder->connectors_active != false);
4176 intel_modeset_check_state(connector->dev);
4179 /* Simple connector->get_hw_state implementation for encoders that support only
4180 * one connector and no cloning and hence the encoder state determines the state
4181 * of the connector. */
4182 bool intel_connector_get_hw_state(struct intel_connector *connector)
4185 struct intel_encoder *encoder = connector->encoder;
4187 return encoder->get_hw_state(encoder, &pipe);
4190 static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
4191 struct intel_crtc_config *pipe_config)
4193 struct drm_i915_private *dev_priv = dev->dev_private;
4194 struct intel_crtc *pipe_B_crtc =
4195 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
4197 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
4198 pipe_name(pipe), pipe_config->fdi_lanes);
4199 if (pipe_config->fdi_lanes > 4) {
4200 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
4201 pipe_name(pipe), pipe_config->fdi_lanes);
4205 if (IS_HASWELL(dev)) {
4206 if (pipe_config->fdi_lanes > 2) {
4207 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
4208 pipe_config->fdi_lanes);
4215 if (INTEL_INFO(dev)->num_pipes == 2)
4218 /* Ivybridge 3 pipe is really complicated */
4223 if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled &&
4224 pipe_config->fdi_lanes > 2) {
4225 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4226 pipe_name(pipe), pipe_config->fdi_lanes);
4231 if (!pipe_has_enabled_pch(pipe_B_crtc) ||
4232 pipe_B_crtc->config.fdi_lanes <= 2) {
4233 if (pipe_config->fdi_lanes > 2) {
4234 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4235 pipe_name(pipe), pipe_config->fdi_lanes);
4239 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
4249 static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc,
4250 struct intel_crtc_config *pipe_config)
4252 struct drm_device *dev = intel_crtc->base.dev;
4253 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
4254 int lane, link_bw, fdi_dotclock;
4255 bool setup_ok, needs_recompute = false;
4258 /* FDI is a binary signal running at ~2.7GHz, encoding
4259 * each output octet as 10 bits. The actual frequency
4260 * is stored as a divider into a 100MHz clock, and the
4261 * mode pixel clock is stored in units of 1KHz.
4262 * Hence the bw of each lane in terms of the mode signal
4265 link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
4267 fdi_dotclock = adjusted_mode->crtc_clock;
4269 lane = ironlake_get_lanes_required(fdi_dotclock, link_bw,
4270 pipe_config->pipe_bpp);
4272 pipe_config->fdi_lanes = lane;
4274 intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock,
4275 link_bw, &pipe_config->fdi_m_n);
4277 setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev,
4278 intel_crtc->pipe, pipe_config);
4279 if (!setup_ok && pipe_config->pipe_bpp > 6*3) {
4280 pipe_config->pipe_bpp -= 2*3;
4281 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
4282 pipe_config->pipe_bpp);
4283 needs_recompute = true;
4284 pipe_config->bw_constrained = true;
4289 if (needs_recompute)
4292 return setup_ok ? 0 : -EINVAL;
4295 static void hsw_compute_ips_config(struct intel_crtc *crtc,
4296 struct intel_crtc_config *pipe_config)
4298 pipe_config->ips_enabled = i915_enable_ips &&
4299 hsw_crtc_supports_ips(crtc) &&
4300 pipe_config->pipe_bpp <= 24;
4303 static int intel_crtc_compute_config(struct intel_crtc *crtc,
4304 struct intel_crtc_config *pipe_config)
4306 struct drm_device *dev = crtc->base.dev;
4307 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
4309 /* FIXME should check pixel clock limits on all platforms */
4310 if (INTEL_INFO(dev)->gen < 4) {
4311 struct drm_i915_private *dev_priv = dev->dev_private;
4313 dev_priv->display.get_display_clock_speed(dev);
4316 * Enable pixel doubling when the dot clock
4317 * is > 90% of the (display) core speed.
4319 * GDG double wide on either pipe,
4320 * otherwise pipe A only.
4322 if ((crtc->pipe == PIPE_A || IS_I915G(dev)) &&
4323 adjusted_mode->crtc_clock > clock_limit * 9 / 10) {
4325 pipe_config->double_wide = true;
4328 if (adjusted_mode->crtc_clock > clock_limit * 9 / 10)
4333 * Pipe horizontal size must be even in:
4335 * - LVDS dual channel mode
4336 * - Double wide pipe
4338 if ((intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4339 intel_is_dual_link_lvds(dev)) || pipe_config->double_wide)
4340 pipe_config->pipe_src_w &= ~1;
4342 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
4343 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
4345 if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) &&
4346 adjusted_mode->hsync_start == adjusted_mode->hdisplay)
4349 if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) {
4350 pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */
4351 } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) {
4352 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
4354 pipe_config->pipe_bpp = 8*3;
4358 hsw_compute_ips_config(crtc, pipe_config);
4360 /* XXX: PCH clock sharing is done in ->mode_set, so make sure the old
4361 * clock survives for now. */
4362 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
4363 pipe_config->shared_dpll = crtc->config.shared_dpll;
4365 if (pipe_config->has_pch_encoder)
4366 return ironlake_fdi_compute_config(crtc, pipe_config);
4371 static int valleyview_get_display_clock_speed(struct drm_device *dev)
4373 return 400000; /* FIXME */
4376 static int i945_get_display_clock_speed(struct drm_device *dev)
4381 static int i915_get_display_clock_speed(struct drm_device *dev)
4386 static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
4391 static int pnv_get_display_clock_speed(struct drm_device *dev)
4395 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4397 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4398 case GC_DISPLAY_CLOCK_267_MHZ_PNV:
4400 case GC_DISPLAY_CLOCK_333_MHZ_PNV:
4402 case GC_DISPLAY_CLOCK_444_MHZ_PNV:
4404 case GC_DISPLAY_CLOCK_200_MHZ_PNV:
4407 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc);
4408 case GC_DISPLAY_CLOCK_133_MHZ_PNV:
4410 case GC_DISPLAY_CLOCK_167_MHZ_PNV:
4415 static int i915gm_get_display_clock_speed(struct drm_device *dev)
4419 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4421 if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
4424 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4425 case GC_DISPLAY_CLOCK_333_MHZ:
4428 case GC_DISPLAY_CLOCK_190_200_MHZ:
4434 static int i865_get_display_clock_speed(struct drm_device *dev)
4439 static int i855_get_display_clock_speed(struct drm_device *dev)
4442 /* Assume that the hardware is in the high speed state. This
4443 * should be the default.
4445 switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
4446 case GC_CLOCK_133_200:
4447 case GC_CLOCK_100_200:
4449 case GC_CLOCK_166_250:
4451 case GC_CLOCK_100_133:
4455 /* Shouldn't happen */
4459 static int i830_get_display_clock_speed(struct drm_device *dev)
4465 intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den)
4467 while (*num > DATA_LINK_M_N_MASK ||
4468 *den > DATA_LINK_M_N_MASK) {
4474 static void compute_m_n(unsigned int m, unsigned int n,
4475 uint32_t *ret_m, uint32_t *ret_n)
4477 *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
4478 *ret_m = div_u64((uint64_t) m * *ret_n, n);
4479 intel_reduce_m_n_ratio(ret_m, ret_n);
4483 intel_link_compute_m_n(int bits_per_pixel, int nlanes,
4484 int pixel_clock, int link_clock,
4485 struct intel_link_m_n *m_n)
4489 compute_m_n(bits_per_pixel * pixel_clock,
4490 link_clock * nlanes * 8,
4491 &m_n->gmch_m, &m_n->gmch_n);
4493 compute_m_n(pixel_clock, link_clock,
4494 &m_n->link_m, &m_n->link_n);
4497 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
4499 if (i915_panel_use_ssc >= 0)
4500 return i915_panel_use_ssc != 0;
4501 return dev_priv->vbt.lvds_use_ssc
4502 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
4505 static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
4507 struct drm_device *dev = crtc->dev;
4508 struct drm_i915_private *dev_priv = dev->dev_private;
4511 if (IS_VALLEYVIEW(dev)) {
4513 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
4514 intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
4515 refclk = dev_priv->vbt.lvds_ssc_freq * 1000;
4516 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4518 } else if (!IS_GEN2(dev)) {
4527 static uint32_t pnv_dpll_compute_fp(struct dpll *dpll)
4529 return (1 << dpll->n) << 16 | dpll->m2;
4532 static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll)
4534 return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
4537 static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
4538 intel_clock_t *reduced_clock)
4540 struct drm_device *dev = crtc->base.dev;
4541 struct drm_i915_private *dev_priv = dev->dev_private;
4542 int pipe = crtc->pipe;
4545 if (IS_PINEVIEW(dev)) {
4546 fp = pnv_dpll_compute_fp(&crtc->config.dpll);
4548 fp2 = pnv_dpll_compute_fp(reduced_clock);
4550 fp = i9xx_dpll_compute_fp(&crtc->config.dpll);
4552 fp2 = i9xx_dpll_compute_fp(reduced_clock);
4555 I915_WRITE(FP0(pipe), fp);
4556 crtc->config.dpll_hw_state.fp0 = fp;
4558 crtc->lowfreq_avail = false;
4559 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4560 reduced_clock && i915_powersave) {
4561 I915_WRITE(FP1(pipe), fp2);
4562 crtc->config.dpll_hw_state.fp1 = fp2;
4563 crtc->lowfreq_avail = true;
4565 I915_WRITE(FP1(pipe), fp);
4566 crtc->config.dpll_hw_state.fp1 = fp;
4570 static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe
4576 * PLLB opamp always calibrates to max value of 0x3f, force enable it
4577 * and set it to a reasonable value instead.
4579 reg_val = vlv_dpio_read(dev_priv, pipe, DPIO_IREF(1));
4580 reg_val &= 0xffffff00;
4581 reg_val |= 0x00000030;
4582 vlv_dpio_write(dev_priv, pipe, DPIO_IREF(1), reg_val);
4584 reg_val = vlv_dpio_read(dev_priv, pipe, DPIO_CALIBRATION);
4585 reg_val &= 0x8cffffff;
4586 reg_val = 0x8c000000;
4587 vlv_dpio_write(dev_priv, pipe, DPIO_CALIBRATION, reg_val);
4589 reg_val = vlv_dpio_read(dev_priv, pipe, DPIO_IREF(1));
4590 reg_val &= 0xffffff00;
4591 vlv_dpio_write(dev_priv, pipe, DPIO_IREF(1), reg_val);
4593 reg_val = vlv_dpio_read(dev_priv, pipe, DPIO_CALIBRATION);
4594 reg_val &= 0x00ffffff;
4595 reg_val |= 0xb0000000;
4596 vlv_dpio_write(dev_priv, pipe, DPIO_CALIBRATION, reg_val);
4599 static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
4600 struct intel_link_m_n *m_n)
4602 struct drm_device *dev = crtc->base.dev;
4603 struct drm_i915_private *dev_priv = dev->dev_private;
4604 int pipe = crtc->pipe;
4606 I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4607 I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n);
4608 I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m);
4609 I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n);
4612 static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
4613 struct intel_link_m_n *m_n)
4615 struct drm_device *dev = crtc->base.dev;
4616 struct drm_i915_private *dev_priv = dev->dev_private;
4617 int pipe = crtc->pipe;
4618 enum transcoder transcoder = crtc->config.cpu_transcoder;
4620 if (INTEL_INFO(dev)->gen >= 5) {
4621 I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
4622 I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
4623 I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
4624 I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
4626 I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
4627 I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n);
4628 I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m);
4629 I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n);
4633 static void intel_dp_set_m_n(struct intel_crtc *crtc)
4635 if (crtc->config.has_pch_encoder)
4636 intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4638 intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4641 static void vlv_update_pll(struct intel_crtc *crtc)
4643 struct drm_device *dev = crtc->base.dev;
4644 struct drm_i915_private *dev_priv = dev->dev_private;
4645 int pipe = crtc->pipe;
4647 u32 bestn, bestm1, bestm2, bestp1, bestp2;
4648 u32 coreclk, reg_val, dpll_md;
4650 mutex_lock(&dev_priv->dpio_lock);
4652 bestn = crtc->config.dpll.n;
4653 bestm1 = crtc->config.dpll.m1;
4654 bestm2 = crtc->config.dpll.m2;
4655 bestp1 = crtc->config.dpll.p1;
4656 bestp2 = crtc->config.dpll.p2;
4658 /* See eDP HDMI DPIO driver vbios notes doc */
4660 /* PLL B needs special handling */
4662 vlv_pllb_recal_opamp(dev_priv, pipe);
4664 /* Set up Tx target for periodic Rcomp update */
4665 vlv_dpio_write(dev_priv, pipe, DPIO_IREF_BCAST, 0x0100000f);
4667 /* Disable target IRef on PLL */
4668 reg_val = vlv_dpio_read(dev_priv, pipe, DPIO_IREF_CTL(pipe));
4669 reg_val &= 0x00ffffff;
4670 vlv_dpio_write(dev_priv, pipe, DPIO_IREF_CTL(pipe), reg_val);
4672 /* Disable fast lock */
4673 vlv_dpio_write(dev_priv, pipe, DPIO_FASTCLK_DISABLE, 0x610);
4675 /* Set idtafcrecal before PLL is enabled */
4676 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
4677 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
4678 mdiv |= ((bestn << DPIO_N_SHIFT));
4679 mdiv |= (1 << DPIO_K_SHIFT);
4682 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
4683 * but we don't support that).
4684 * Note: don't use the DAC post divider as it seems unstable.
4686 mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
4687 vlv_dpio_write(dev_priv, pipe, DPIO_DIV(pipe), mdiv);
4689 mdiv |= DPIO_ENABLE_CALIBRATION;
4690 vlv_dpio_write(dev_priv, pipe, DPIO_DIV(pipe), mdiv);
4692 /* Set HBR and RBR LPF coefficients */
4693 if (crtc->config.port_clock == 162000 ||
4694 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_ANALOG) ||
4695 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI))
4696 vlv_dpio_write(dev_priv, pipe, DPIO_LPF_COEFF(pipe),
4699 vlv_dpio_write(dev_priv, pipe, DPIO_LPF_COEFF(pipe),
4702 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
4703 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) {
4704 /* Use SSC source */
4706 vlv_dpio_write(dev_priv, pipe, DPIO_REFSFR(pipe),
4709 vlv_dpio_write(dev_priv, pipe, DPIO_REFSFR(pipe),
4711 } else { /* HDMI or VGA */
4712 /* Use bend source */
4714 vlv_dpio_write(dev_priv, pipe, DPIO_REFSFR(pipe),
4717 vlv_dpio_write(dev_priv, pipe, DPIO_REFSFR(pipe),
4721 coreclk = vlv_dpio_read(dev_priv, pipe, DPIO_CORE_CLK(pipe));
4722 coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
4723 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) ||
4724 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP))
4725 coreclk |= 0x01000000;
4726 vlv_dpio_write(dev_priv, pipe, DPIO_CORE_CLK(pipe), coreclk);
4728 vlv_dpio_write(dev_priv, pipe, DPIO_PLL_CML(pipe), 0x87871000);
4730 /* Enable DPIO clock input */
4731 dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
4732 DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
4733 /* We should never disable this, set it here for state tracking */
4735 dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
4736 dpll |= DPLL_VCO_ENABLE;
4737 crtc->config.dpll_hw_state.dpll = dpll;
4739 dpll_md = (crtc->config.pixel_multiplier - 1)
4740 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4741 crtc->config.dpll_hw_state.dpll_md = dpll_md;
4743 if (crtc->config.has_dp_encoder)
4744 intel_dp_set_m_n(crtc);
4746 mutex_unlock(&dev_priv->dpio_lock);
4749 static void i9xx_update_pll(struct intel_crtc *crtc,
4750 intel_clock_t *reduced_clock,
4753 struct drm_device *dev = crtc->base.dev;
4754 struct drm_i915_private *dev_priv = dev->dev_private;
4757 struct dpll *clock = &crtc->config.dpll;
4759 i9xx_update_pll_dividers(crtc, reduced_clock);
4761 is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
4762 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
4764 dpll = DPLL_VGA_MODE_DIS;
4766 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS))
4767 dpll |= DPLLB_MODE_LVDS;
4769 dpll |= DPLLB_MODE_DAC_SERIAL;
4771 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
4772 dpll |= (crtc->config.pixel_multiplier - 1)
4773 << SDVO_MULTIPLIER_SHIFT_HIRES;
4777 dpll |= DPLL_SDVO_HIGH_SPEED;
4779 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
4780 dpll |= DPLL_SDVO_HIGH_SPEED;
4782 /* compute bitmask from p1 value */
4783 if (IS_PINEVIEW(dev))
4784 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
4786 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4787 if (IS_G4X(dev) && reduced_clock)
4788 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
4790 switch (clock->p2) {
4792 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
4795 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
4798 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
4801 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
4804 if (INTEL_INFO(dev)->gen >= 4)
4805 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
4807 if (crtc->config.sdvo_tv_clock)
4808 dpll |= PLL_REF_INPUT_TVCLKINBC;
4809 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4810 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4811 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4813 dpll |= PLL_REF_INPUT_DREFCLK;
4815 dpll |= DPLL_VCO_ENABLE;
4816 crtc->config.dpll_hw_state.dpll = dpll;
4818 if (INTEL_INFO(dev)->gen >= 4) {
4819 u32 dpll_md = (crtc->config.pixel_multiplier - 1)
4820 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4821 crtc->config.dpll_hw_state.dpll_md = dpll_md;
4824 if (crtc->config.has_dp_encoder)
4825 intel_dp_set_m_n(crtc);
4828 static void i8xx_update_pll(struct intel_crtc *crtc,
4829 intel_clock_t *reduced_clock,
4832 struct drm_device *dev = crtc->base.dev;
4833 struct drm_i915_private *dev_priv = dev->dev_private;
4835 struct dpll *clock = &crtc->config.dpll;
4837 i9xx_update_pll_dividers(crtc, reduced_clock);
4839 dpll = DPLL_VGA_MODE_DIS;
4841 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
4842 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4845 dpll |= PLL_P1_DIVIDE_BY_TWO;
4847 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4849 dpll |= PLL_P2_DIVIDE_BY_4;
4852 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DVO))
4853 dpll |= DPLL_DVO_2X_MODE;
4855 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4856 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4857 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4859 dpll |= PLL_REF_INPUT_DREFCLK;
4861 dpll |= DPLL_VCO_ENABLE;
4862 crtc->config.dpll_hw_state.dpll = dpll;
4865 static void intel_set_pipe_timings(struct intel_crtc *intel_crtc)
4867 struct drm_device *dev = intel_crtc->base.dev;
4868 struct drm_i915_private *dev_priv = dev->dev_private;
4869 enum pipe pipe = intel_crtc->pipe;
4870 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
4871 struct drm_display_mode *adjusted_mode =
4872 &intel_crtc->config.adjusted_mode;
4873 uint32_t vsyncshift, crtc_vtotal, crtc_vblank_end;
4875 /* We need to be careful not to changed the adjusted mode, for otherwise
4876 * the hw state checker will get angry at the mismatch. */
4877 crtc_vtotal = adjusted_mode->crtc_vtotal;
4878 crtc_vblank_end = adjusted_mode->crtc_vblank_end;
4880 if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
4881 /* the chip adds 2 halflines automatically */
4883 crtc_vblank_end -= 1;
4884 vsyncshift = adjusted_mode->crtc_hsync_start
4885 - adjusted_mode->crtc_htotal / 2;
4890 if (INTEL_INFO(dev)->gen > 3)
4891 I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
4893 I915_WRITE(HTOTAL(cpu_transcoder),
4894 (adjusted_mode->crtc_hdisplay - 1) |
4895 ((adjusted_mode->crtc_htotal - 1) << 16));
4896 I915_WRITE(HBLANK(cpu_transcoder),
4897 (adjusted_mode->crtc_hblank_start - 1) |
4898 ((adjusted_mode->crtc_hblank_end - 1) << 16));
4899 I915_WRITE(HSYNC(cpu_transcoder),
4900 (adjusted_mode->crtc_hsync_start - 1) |
4901 ((adjusted_mode->crtc_hsync_end - 1) << 16));
4903 I915_WRITE(VTOTAL(cpu_transcoder),
4904 (adjusted_mode->crtc_vdisplay - 1) |
4905 ((crtc_vtotal - 1) << 16));
4906 I915_WRITE(VBLANK(cpu_transcoder),
4907 (adjusted_mode->crtc_vblank_start - 1) |
4908 ((crtc_vblank_end - 1) << 16));
4909 I915_WRITE(VSYNC(cpu_transcoder),
4910 (adjusted_mode->crtc_vsync_start - 1) |
4911 ((adjusted_mode->crtc_vsync_end - 1) << 16));
4913 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
4914 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
4915 * documented on the DDI_FUNC_CTL register description, EDP Input Select
4917 if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP &&
4918 (pipe == PIPE_B || pipe == PIPE_C))
4919 I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
4921 /* pipesrc controls the size that is scaled from, which should
4922 * always be the user's requested size.
4924 I915_WRITE(PIPESRC(pipe),
4925 ((intel_crtc->config.pipe_src_w - 1) << 16) |
4926 (intel_crtc->config.pipe_src_h - 1));
4929 static void intel_get_pipe_timings(struct intel_crtc *crtc,
4930 struct intel_crtc_config *pipe_config)
4932 struct drm_device *dev = crtc->base.dev;
4933 struct drm_i915_private *dev_priv = dev->dev_private;
4934 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
4937 tmp = I915_READ(HTOTAL(cpu_transcoder));
4938 pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1;
4939 pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1;
4940 tmp = I915_READ(HBLANK(cpu_transcoder));
4941 pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1;
4942 pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1;
4943 tmp = I915_READ(HSYNC(cpu_transcoder));
4944 pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1;
4945 pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1;
4947 tmp = I915_READ(VTOTAL(cpu_transcoder));
4948 pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1;
4949 pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1;
4950 tmp = I915_READ(VBLANK(cpu_transcoder));
4951 pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1;
4952 pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1;
4953 tmp = I915_READ(VSYNC(cpu_transcoder));
4954 pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1;
4955 pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1;
4957 if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) {
4958 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE;
4959 pipe_config->adjusted_mode.crtc_vtotal += 1;
4960 pipe_config->adjusted_mode.crtc_vblank_end += 1;
4963 tmp = I915_READ(PIPESRC(crtc->pipe));
4964 pipe_config->pipe_src_h = (tmp & 0xffff) + 1;
4965 pipe_config->pipe_src_w = ((tmp >> 16) & 0xffff) + 1;
4967 pipe_config->requested_mode.vdisplay = pipe_config->pipe_src_h;
4968 pipe_config->requested_mode.hdisplay = pipe_config->pipe_src_w;
4971 static void intel_crtc_mode_from_pipe_config(struct intel_crtc *intel_crtc,
4972 struct intel_crtc_config *pipe_config)
4974 struct drm_crtc *crtc = &intel_crtc->base;
4976 crtc->mode.hdisplay = pipe_config->adjusted_mode.crtc_hdisplay;
4977 crtc->mode.htotal = pipe_config->adjusted_mode.crtc_htotal;
4978 crtc->mode.hsync_start = pipe_config->adjusted_mode.crtc_hsync_start;
4979 crtc->mode.hsync_end = pipe_config->adjusted_mode.crtc_hsync_end;
4981 crtc->mode.vdisplay = pipe_config->adjusted_mode.crtc_vdisplay;
4982 crtc->mode.vtotal = pipe_config->adjusted_mode.crtc_vtotal;
4983 crtc->mode.vsync_start = pipe_config->adjusted_mode.crtc_vsync_start;
4984 crtc->mode.vsync_end = pipe_config->adjusted_mode.crtc_vsync_end;
4986 crtc->mode.flags = pipe_config->adjusted_mode.flags;
4988 crtc->mode.clock = pipe_config->adjusted_mode.crtc_clock;
4989 crtc->mode.flags |= pipe_config->adjusted_mode.flags;
4992 static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
4994 struct drm_device *dev = intel_crtc->base.dev;
4995 struct drm_i915_private *dev_priv = dev->dev_private;
5000 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
5001 I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE)
5002 pipeconf |= PIPECONF_ENABLE;
5004 if (intel_crtc->config.double_wide)
5005 pipeconf |= PIPECONF_DOUBLE_WIDE;
5007 /* only g4x and later have fancy bpc/dither controls */
5008 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
5009 /* Bspec claims that we can't use dithering for 30bpp pipes. */
5010 if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30)
5011 pipeconf |= PIPECONF_DITHER_EN |
5012 PIPECONF_DITHER_TYPE_SP;
5014 switch (intel_crtc->config.pipe_bpp) {
5016 pipeconf |= PIPECONF_6BPC;
5019 pipeconf |= PIPECONF_8BPC;
5022 pipeconf |= PIPECONF_10BPC;
5025 /* Case prevented by intel_choose_pipe_bpp_dither. */
5030 if (HAS_PIPE_CXSR(dev)) {
5031 if (intel_crtc->lowfreq_avail) {
5032 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
5033 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
5035 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
5039 if (!IS_GEN2(dev) &&
5040 intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
5041 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
5043 pipeconf |= PIPECONF_PROGRESSIVE;
5045 if (IS_VALLEYVIEW(dev) && intel_crtc->config.limited_color_range)
5046 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
5048 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
5049 POSTING_READ(PIPECONF(intel_crtc->pipe));
5052 static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
5054 struct drm_framebuffer *fb)
5056 struct drm_device *dev = crtc->dev;
5057 struct drm_i915_private *dev_priv = dev->dev_private;
5058 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5059 int pipe = intel_crtc->pipe;
5060 int plane = intel_crtc->plane;
5061 int refclk, num_connectors = 0;
5062 intel_clock_t clock, reduced_clock;
5064 bool ok, has_reduced_clock = false;
5065 bool is_lvds = false, is_dsi = false;
5066 struct intel_encoder *encoder;
5067 const intel_limit_t *limit;
5070 for_each_encoder_on_crtc(dev, crtc, encoder) {
5071 switch (encoder->type) {
5072 case INTEL_OUTPUT_LVDS:
5075 case INTEL_OUTPUT_DSI:
5086 if (!intel_crtc->config.clock_set) {
5087 refclk = i9xx_get_refclk(crtc, num_connectors);
5090 * Returns a set of divisors for the desired target clock with
5091 * the given refclk, or FALSE. The returned values represent
5092 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
5095 limit = intel_limit(crtc, refclk);
5096 ok = dev_priv->display.find_dpll(limit, crtc,
5097 intel_crtc->config.port_clock,
5098 refclk, NULL, &clock);
5100 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5104 if (is_lvds && dev_priv->lvds_downclock_avail) {
5106 * Ensure we match the reduced clock's P to the target
5107 * clock. If the clocks don't match, we can't switch
5108 * the display clock by using the FP0/FP1. In such case
5109 * we will disable the LVDS downclock feature.
5112 dev_priv->display.find_dpll(limit, crtc,
5113 dev_priv->lvds_downclock,
5117 /* Compat-code for transition, will disappear. */
5118 intel_crtc->config.dpll.n = clock.n;
5119 intel_crtc->config.dpll.m1 = clock.m1;
5120 intel_crtc->config.dpll.m2 = clock.m2;
5121 intel_crtc->config.dpll.p1 = clock.p1;
5122 intel_crtc->config.dpll.p2 = clock.p2;
5126 i8xx_update_pll(intel_crtc,
5127 has_reduced_clock ? &reduced_clock : NULL,
5129 } else if (IS_VALLEYVIEW(dev)) {
5130 vlv_update_pll(intel_crtc);
5132 i9xx_update_pll(intel_crtc,
5133 has_reduced_clock ? &reduced_clock : NULL,
5138 /* Set up the display plane register */
5139 dspcntr = DISPPLANE_GAMMA_ENABLE;
5141 if (!IS_VALLEYVIEW(dev)) {
5143 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
5145 dspcntr |= DISPPLANE_SEL_PIPE_B;
5148 intel_set_pipe_timings(intel_crtc);
5150 /* pipesrc and dspsize control the size that is scaled from,
5151 * which should always be the user's requested size.
5153 I915_WRITE(DSPSIZE(plane),
5154 ((intel_crtc->config.pipe_src_h - 1) << 16) |
5155 (intel_crtc->config.pipe_src_w - 1));
5156 I915_WRITE(DSPPOS(plane), 0);
5158 i9xx_set_pipeconf(intel_crtc);
5160 I915_WRITE(DSPCNTR(plane), dspcntr);
5161 POSTING_READ(DSPCNTR(plane));
5163 ret = intel_pipe_set_base(crtc, x, y, fb);
5168 static void i9xx_get_pfit_config(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;
5175 tmp = I915_READ(PFIT_CONTROL);
5176 if (!(tmp & PFIT_ENABLE))
5179 /* Check whether the pfit is attached to our pipe. */
5180 if (INTEL_INFO(dev)->gen < 4) {
5181 if (crtc->pipe != PIPE_B)
5184 if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT))
5188 pipe_config->gmch_pfit.control = tmp;
5189 pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS);
5190 if (INTEL_INFO(dev)->gen < 5)
5191 pipe_config->gmch_pfit.lvds_border_bits =
5192 I915_READ(LVDS) & LVDS_BORDER_ENABLE;
5195 static void vlv_crtc_clock_get(struct intel_crtc *crtc,
5196 struct intel_crtc_config *pipe_config)
5198 struct drm_device *dev = crtc->base.dev;
5199 struct drm_i915_private *dev_priv = dev->dev_private;
5200 int pipe = pipe_config->cpu_transcoder;
5201 intel_clock_t clock;
5203 int refclk = 100000;
5205 mutex_lock(&dev_priv->dpio_lock);
5206 mdiv = vlv_dpio_read(dev_priv, pipe, DPIO_DIV(pipe));
5207 mutex_unlock(&dev_priv->dpio_lock);
5209 clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7;
5210 clock.m2 = mdiv & DPIO_M2DIV_MASK;
5211 clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf;
5212 clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7;
5213 clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f;
5215 vlv_clock(refclk, &clock);
5217 /* clock.dot is the fast clock */
5218 pipe_config->port_clock = clock.dot / 5;
5221 static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
5222 struct intel_crtc_config *pipe_config)
5224 struct drm_device *dev = crtc->base.dev;
5225 struct drm_i915_private *dev_priv = dev->dev_private;
5228 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
5229 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
5231 tmp = I915_READ(PIPECONF(crtc->pipe));
5232 if (!(tmp & PIPECONF_ENABLE))
5235 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
5236 switch (tmp & PIPECONF_BPC_MASK) {
5238 pipe_config->pipe_bpp = 18;
5241 pipe_config->pipe_bpp = 24;
5243 case PIPECONF_10BPC:
5244 pipe_config->pipe_bpp = 30;
5251 if (INTEL_INFO(dev)->gen < 4)
5252 pipe_config->double_wide = tmp & PIPECONF_DOUBLE_WIDE;
5254 intel_get_pipe_timings(crtc, pipe_config);
5256 i9xx_get_pfit_config(crtc, pipe_config);
5258 if (INTEL_INFO(dev)->gen >= 4) {
5259 tmp = I915_READ(DPLL_MD(crtc->pipe));
5260 pipe_config->pixel_multiplier =
5261 ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK)
5262 >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1;
5263 pipe_config->dpll_hw_state.dpll_md = tmp;
5264 } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
5265 tmp = I915_READ(DPLL(crtc->pipe));
5266 pipe_config->pixel_multiplier =
5267 ((tmp & SDVO_MULTIPLIER_MASK)
5268 >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1;
5270 /* Note that on i915G/GM the pixel multiplier is in the sdvo
5271 * port and will be fixed up in the encoder->get_config
5273 pipe_config->pixel_multiplier = 1;
5275 pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe));
5276 if (!IS_VALLEYVIEW(dev)) {
5277 pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe));
5278 pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe));
5280 /* Mask out read-only status bits. */
5281 pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV |
5282 DPLL_PORTC_READY_MASK |
5283 DPLL_PORTB_READY_MASK);
5286 if (IS_VALLEYVIEW(dev))
5287 vlv_crtc_clock_get(crtc, pipe_config);
5289 i9xx_crtc_clock_get(crtc, pipe_config);
5294 static void ironlake_init_pch_refclk(struct drm_device *dev)
5296 struct drm_i915_private *dev_priv = dev->dev_private;
5297 struct drm_mode_config *mode_config = &dev->mode_config;
5298 struct intel_encoder *encoder;
5300 bool has_lvds = false;
5301 bool has_cpu_edp = false;
5302 bool has_panel = false;
5303 bool has_ck505 = false;
5304 bool can_ssc = false;
5306 /* We need to take the global config into account */
5307 list_for_each_entry(encoder, &mode_config->encoder_list,
5309 switch (encoder->type) {
5310 case INTEL_OUTPUT_LVDS:
5314 case INTEL_OUTPUT_EDP:
5316 if (enc_to_dig_port(&encoder->base)->port == PORT_A)
5322 if (HAS_PCH_IBX(dev)) {
5323 has_ck505 = dev_priv->vbt.display_clock_mode;
5324 can_ssc = has_ck505;
5330 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
5331 has_panel, has_lvds, has_ck505);
5333 /* Ironlake: try to setup display ref clock before DPLL
5334 * enabling. This is only under driver's control after
5335 * PCH B stepping, previous chipset stepping should be
5336 * ignoring this setting.
5338 val = I915_READ(PCH_DREF_CONTROL);
5340 /* As we must carefully and slowly disable/enable each source in turn,
5341 * compute the final state we want first and check if we need to
5342 * make any changes at all.
5345 final &= ~DREF_NONSPREAD_SOURCE_MASK;
5347 final |= DREF_NONSPREAD_CK505_ENABLE;
5349 final |= DREF_NONSPREAD_SOURCE_ENABLE;
5351 final &= ~DREF_SSC_SOURCE_MASK;
5352 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5353 final &= ~DREF_SSC1_ENABLE;
5356 final |= DREF_SSC_SOURCE_ENABLE;
5358 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5359 final |= DREF_SSC1_ENABLE;
5362 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5363 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5365 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5367 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5369 final |= DREF_SSC_SOURCE_DISABLE;
5370 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5376 /* Always enable nonspread source */
5377 val &= ~DREF_NONSPREAD_SOURCE_MASK;
5380 val |= DREF_NONSPREAD_CK505_ENABLE;
5382 val |= DREF_NONSPREAD_SOURCE_ENABLE;
5385 val &= ~DREF_SSC_SOURCE_MASK;
5386 val |= DREF_SSC_SOURCE_ENABLE;
5388 /* SSC must be turned on before enabling the CPU output */
5389 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
5390 DRM_DEBUG_KMS("Using SSC on panel\n");
5391 val |= DREF_SSC1_ENABLE;
5393 val &= ~DREF_SSC1_ENABLE;
5395 /* Get SSC going before enabling the outputs */
5396 I915_WRITE(PCH_DREF_CONTROL, val);
5397 POSTING_READ(PCH_DREF_CONTROL);
5400 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5402 /* Enable CPU source on CPU attached eDP */
5404 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
5405 DRM_DEBUG_KMS("Using SSC on eDP\n");
5406 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5409 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5411 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5413 I915_WRITE(PCH_DREF_CONTROL, val);
5414 POSTING_READ(PCH_DREF_CONTROL);
5417 DRM_DEBUG_KMS("Disabling SSC entirely\n");
5419 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5421 /* Turn off CPU output */
5422 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5424 I915_WRITE(PCH_DREF_CONTROL, val);
5425 POSTING_READ(PCH_DREF_CONTROL);
5428 /* Turn off the SSC source */
5429 val &= ~DREF_SSC_SOURCE_MASK;
5430 val |= DREF_SSC_SOURCE_DISABLE;
5433 val &= ~DREF_SSC1_ENABLE;
5435 I915_WRITE(PCH_DREF_CONTROL, val);
5436 POSTING_READ(PCH_DREF_CONTROL);
5440 BUG_ON(val != final);
5443 static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv)
5447 tmp = I915_READ(SOUTH_CHICKEN2);
5448 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
5449 I915_WRITE(SOUTH_CHICKEN2, tmp);
5451 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
5452 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
5453 DRM_ERROR("FDI mPHY reset assert timeout\n");
5455 tmp = I915_READ(SOUTH_CHICKEN2);
5456 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
5457 I915_WRITE(SOUTH_CHICKEN2, tmp);
5459 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
5460 FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100))
5461 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
5464 /* WaMPhyProgramming:hsw */
5465 static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv)
5469 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
5470 tmp &= ~(0xFF << 24);
5471 tmp |= (0x12 << 24);
5472 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
5474 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
5476 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
5478 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
5480 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
5482 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
5483 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5484 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
5486 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
5487 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5488 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
5490 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
5493 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
5495 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
5498 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
5500 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
5503 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
5505 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
5508 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
5510 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
5511 tmp &= ~(0xFF << 16);
5512 tmp |= (0x1C << 16);
5513 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
5515 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
5516 tmp &= ~(0xFF << 16);
5517 tmp |= (0x1C << 16);
5518 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
5520 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
5522 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
5524 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
5526 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
5528 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
5529 tmp &= ~(0xF << 28);
5531 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
5533 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
5534 tmp &= ~(0xF << 28);
5536 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
5539 /* Implements 3 different sequences from BSpec chapter "Display iCLK
5540 * Programming" based on the parameters passed:
5541 * - Sequence to enable CLKOUT_DP
5542 * - Sequence to enable CLKOUT_DP without spread
5543 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
5545 static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread,
5548 struct drm_i915_private *dev_priv = dev->dev_private;
5551 if (WARN(with_fdi && !with_spread, "FDI requires downspread\n"))
5553 if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE &&
5554 with_fdi, "LP PCH doesn't have FDI\n"))
5557 mutex_lock(&dev_priv->dpio_lock);
5559 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5560 tmp &= ~SBI_SSCCTL_DISABLE;
5561 tmp |= SBI_SSCCTL_PATHALT;
5562 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5567 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5568 tmp &= ~SBI_SSCCTL_PATHALT;
5569 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5572 lpt_reset_fdi_mphy(dev_priv);
5573 lpt_program_fdi_mphy(dev_priv);
5577 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
5578 SBI_GEN0 : SBI_DBUFF0;
5579 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
5580 tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE;
5581 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
5583 mutex_unlock(&dev_priv->dpio_lock);
5586 /* Sequence to disable CLKOUT_DP */
5587 static void lpt_disable_clkout_dp(struct drm_device *dev)
5589 struct drm_i915_private *dev_priv = dev->dev_private;
5592 mutex_lock(&dev_priv->dpio_lock);
5594 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
5595 SBI_GEN0 : SBI_DBUFF0;
5596 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
5597 tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE;
5598 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
5600 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
5601 if (!(tmp & SBI_SSCCTL_DISABLE)) {
5602 if (!(tmp & SBI_SSCCTL_PATHALT)) {
5603 tmp |= SBI_SSCCTL_PATHALT;
5604 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5607 tmp |= SBI_SSCCTL_DISABLE;
5608 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
5611 mutex_unlock(&dev_priv->dpio_lock);
5614 static void lpt_init_pch_refclk(struct drm_device *dev)
5616 struct drm_mode_config *mode_config = &dev->mode_config;
5617 struct intel_encoder *encoder;
5618 bool has_vga = false;
5620 list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
5621 switch (encoder->type) {
5622 case INTEL_OUTPUT_ANALOG:
5629 lpt_enable_clkout_dp(dev, true, true);
5631 lpt_disable_clkout_dp(dev);
5635 * Initialize reference clocks when the driver loads
5637 void intel_init_pch_refclk(struct drm_device *dev)
5639 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
5640 ironlake_init_pch_refclk(dev);
5641 else if (HAS_PCH_LPT(dev))
5642 lpt_init_pch_refclk(dev);
5645 static int ironlake_get_refclk(struct drm_crtc *crtc)
5647 struct drm_device *dev = crtc->dev;
5648 struct drm_i915_private *dev_priv = dev->dev_private;
5649 struct intel_encoder *encoder;
5650 int num_connectors = 0;
5651 bool is_lvds = false;
5653 for_each_encoder_on_crtc(dev, crtc, encoder) {
5654 switch (encoder->type) {
5655 case INTEL_OUTPUT_LVDS:
5662 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
5663 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
5664 dev_priv->vbt.lvds_ssc_freq);
5665 return dev_priv->vbt.lvds_ssc_freq * 1000;
5671 static void ironlake_set_pipeconf(struct drm_crtc *crtc)
5673 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5674 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5675 int pipe = intel_crtc->pipe;
5680 switch (intel_crtc->config.pipe_bpp) {
5682 val |= PIPECONF_6BPC;
5685 val |= PIPECONF_8BPC;
5688 val |= PIPECONF_10BPC;
5691 val |= PIPECONF_12BPC;
5694 /* Case prevented by intel_choose_pipe_bpp_dither. */
5698 if (intel_crtc->config.dither)
5699 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5701 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
5702 val |= PIPECONF_INTERLACED_ILK;
5704 val |= PIPECONF_PROGRESSIVE;
5706 if (intel_crtc->config.limited_color_range)
5707 val |= PIPECONF_COLOR_RANGE_SELECT;
5709 I915_WRITE(PIPECONF(pipe), val);
5710 POSTING_READ(PIPECONF(pipe));
5714 * Set up the pipe CSC unit.
5716 * Currently only full range RGB to limited range RGB conversion
5717 * is supported, but eventually this should handle various
5718 * RGB<->YCbCr scenarios as well.
5720 static void intel_set_pipe_csc(struct drm_crtc *crtc)
5722 struct drm_device *dev = crtc->dev;
5723 struct drm_i915_private *dev_priv = dev->dev_private;
5724 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5725 int pipe = intel_crtc->pipe;
5726 uint16_t coeff = 0x7800; /* 1.0 */
5729 * TODO: Check what kind of values actually come out of the pipe
5730 * with these coeff/postoff values and adjust to get the best
5731 * accuracy. Perhaps we even need to take the bpc value into
5735 if (intel_crtc->config.limited_color_range)
5736 coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5739 * GY/GU and RY/RU should be the other way around according
5740 * to BSpec, but reality doesn't agree. Just set them up in
5741 * a way that results in the correct picture.
5743 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
5744 I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
5746 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
5747 I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
5749 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
5750 I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
5752 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
5753 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
5754 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
5756 if (INTEL_INFO(dev)->gen > 6) {
5757 uint16_t postoff = 0;
5759 if (intel_crtc->config.limited_color_range)
5760 postoff = (16 * (1 << 13) / 255) & 0x1fff;
5762 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
5763 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
5764 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
5766 I915_WRITE(PIPE_CSC_MODE(pipe), 0);
5768 uint32_t mode = CSC_MODE_YUV_TO_RGB;
5770 if (intel_crtc->config.limited_color_range)
5771 mode |= CSC_BLACK_SCREEN_OFFSET;
5773 I915_WRITE(PIPE_CSC_MODE(pipe), mode);
5777 static void haswell_set_pipeconf(struct drm_crtc *crtc)
5779 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5780 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5781 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
5786 if (intel_crtc->config.dither)
5787 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5789 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
5790 val |= PIPECONF_INTERLACED_ILK;
5792 val |= PIPECONF_PROGRESSIVE;
5794 I915_WRITE(PIPECONF(cpu_transcoder), val);
5795 POSTING_READ(PIPECONF(cpu_transcoder));
5797 I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT);
5798 POSTING_READ(GAMMA_MODE(intel_crtc->pipe));
5801 static bool ironlake_compute_clocks(struct drm_crtc *crtc,
5802 intel_clock_t *clock,
5803 bool *has_reduced_clock,
5804 intel_clock_t *reduced_clock)
5806 struct drm_device *dev = crtc->dev;
5807 struct drm_i915_private *dev_priv = dev->dev_private;
5808 struct intel_encoder *intel_encoder;
5810 const intel_limit_t *limit;
5811 bool ret, is_lvds = false;
5813 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5814 switch (intel_encoder->type) {
5815 case INTEL_OUTPUT_LVDS:
5821 refclk = ironlake_get_refclk(crtc);
5824 * Returns a set of divisors for the desired target clock with the given
5825 * refclk, or FALSE. The returned values represent the clock equation:
5826 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
5828 limit = intel_limit(crtc, refclk);
5829 ret = dev_priv->display.find_dpll(limit, crtc,
5830 to_intel_crtc(crtc)->config.port_clock,
5831 refclk, NULL, clock);
5835 if (is_lvds && dev_priv->lvds_downclock_avail) {
5837 * Ensure we match the reduced clock's P to the target clock.
5838 * If the clocks don't match, we can't switch the display clock
5839 * by using the FP0/FP1. In such case we will disable the LVDS
5840 * downclock feature.
5842 *has_reduced_clock =
5843 dev_priv->display.find_dpll(limit, crtc,
5844 dev_priv->lvds_downclock,
5852 static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
5854 struct drm_i915_private *dev_priv = dev->dev_private;
5857 temp = I915_READ(SOUTH_CHICKEN1);
5858 if (temp & FDI_BC_BIFURCATION_SELECT)
5861 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
5862 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
5864 temp |= FDI_BC_BIFURCATION_SELECT;
5865 DRM_DEBUG_KMS("enabling fdi C rx\n");
5866 I915_WRITE(SOUTH_CHICKEN1, temp);
5867 POSTING_READ(SOUTH_CHICKEN1);
5870 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
5872 struct drm_device *dev = intel_crtc->base.dev;
5873 struct drm_i915_private *dev_priv = dev->dev_private;
5875 switch (intel_crtc->pipe) {
5879 if (intel_crtc->config.fdi_lanes > 2)
5880 WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
5882 cpt_enable_fdi_bc_bifurcation(dev);
5886 cpt_enable_fdi_bc_bifurcation(dev);
5894 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
5897 * Account for spread spectrum to avoid
5898 * oversubscribing the link. Max center spread
5899 * is 2.5%; use 5% for safety's sake.
5901 u32 bps = target_clock * bpp * 21 / 20;
5902 return bps / (link_bw * 8) + 1;
5905 static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
5907 return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
5910 static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
5912 intel_clock_t *reduced_clock, u32 *fp2)
5914 struct drm_crtc *crtc = &intel_crtc->base;
5915 struct drm_device *dev = crtc->dev;
5916 struct drm_i915_private *dev_priv = dev->dev_private;
5917 struct intel_encoder *intel_encoder;
5919 int factor, num_connectors = 0;
5920 bool is_lvds = false, is_sdvo = false;
5922 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5923 switch (intel_encoder->type) {
5924 case INTEL_OUTPUT_LVDS:
5927 case INTEL_OUTPUT_SDVO:
5928 case INTEL_OUTPUT_HDMI:
5936 /* Enable autotuning of the PLL clock (if permissible) */
5939 if ((intel_panel_use_ssc(dev_priv) &&
5940 dev_priv->vbt.lvds_ssc_freq == 100) ||
5941 (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
5943 } else if (intel_crtc->config.sdvo_tv_clock)
5946 if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor))
5949 if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
5955 dpll |= DPLLB_MODE_LVDS;
5957 dpll |= DPLLB_MODE_DAC_SERIAL;
5959 dpll |= (intel_crtc->config.pixel_multiplier - 1)
5960 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
5963 dpll |= DPLL_SDVO_HIGH_SPEED;
5964 if (intel_crtc->config.has_dp_encoder)
5965 dpll |= DPLL_SDVO_HIGH_SPEED;
5967 /* compute bitmask from p1 value */
5968 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
5970 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
5972 switch (intel_crtc->config.dpll.p2) {
5974 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
5977 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
5980 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
5983 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
5987 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
5988 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
5990 dpll |= PLL_REF_INPUT_DREFCLK;
5992 return dpll | DPLL_VCO_ENABLE;
5995 static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
5997 struct drm_framebuffer *fb)
5999 struct drm_device *dev = crtc->dev;
6000 struct drm_i915_private *dev_priv = dev->dev_private;
6001 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6002 int pipe = intel_crtc->pipe;
6003 int plane = intel_crtc->plane;
6004 int num_connectors = 0;
6005 intel_clock_t clock, reduced_clock;
6006 u32 dpll = 0, fp = 0, fp2 = 0;
6007 bool ok, has_reduced_clock = false;
6008 bool is_lvds = false;
6009 struct intel_encoder *encoder;
6010 struct intel_shared_dpll *pll;
6013 for_each_encoder_on_crtc(dev, crtc, encoder) {
6014 switch (encoder->type) {
6015 case INTEL_OUTPUT_LVDS:
6023 WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
6024 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
6026 ok = ironlake_compute_clocks(crtc, &clock,
6027 &has_reduced_clock, &reduced_clock);
6028 if (!ok && !intel_crtc->config.clock_set) {
6029 DRM_ERROR("Couldn't find PLL settings for mode!\n");
6032 /* Compat-code for transition, will disappear. */
6033 if (!intel_crtc->config.clock_set) {
6034 intel_crtc->config.dpll.n = clock.n;
6035 intel_crtc->config.dpll.m1 = clock.m1;
6036 intel_crtc->config.dpll.m2 = clock.m2;
6037 intel_crtc->config.dpll.p1 = clock.p1;
6038 intel_crtc->config.dpll.p2 = clock.p2;
6041 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
6042 if (intel_crtc->config.has_pch_encoder) {
6043 fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
6044 if (has_reduced_clock)
6045 fp2 = i9xx_dpll_compute_fp(&reduced_clock);
6047 dpll = ironlake_compute_dpll(intel_crtc,
6048 &fp, &reduced_clock,
6049 has_reduced_clock ? &fp2 : NULL);
6051 intel_crtc->config.dpll_hw_state.dpll = dpll;
6052 intel_crtc->config.dpll_hw_state.fp0 = fp;
6053 if (has_reduced_clock)
6054 intel_crtc->config.dpll_hw_state.fp1 = fp2;
6056 intel_crtc->config.dpll_hw_state.fp1 = fp;
6058 pll = intel_get_shared_dpll(intel_crtc);
6060 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
6065 intel_put_shared_dpll(intel_crtc);
6067 if (intel_crtc->config.has_dp_encoder)
6068 intel_dp_set_m_n(intel_crtc);
6070 if (is_lvds && has_reduced_clock && i915_powersave)
6071 intel_crtc->lowfreq_avail = true;
6073 intel_crtc->lowfreq_avail = false;
6075 intel_set_pipe_timings(intel_crtc);
6077 if (intel_crtc->config.has_pch_encoder) {
6078 intel_cpu_transcoder_set_m_n(intel_crtc,
6079 &intel_crtc->config.fdi_m_n);
6082 if (IS_IVYBRIDGE(dev))
6083 ivybridge_update_fdi_bc_bifurcation(intel_crtc);
6085 ironlake_set_pipeconf(crtc);
6087 /* Set up the display plane register */
6088 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
6089 POSTING_READ(DSPCNTR(plane));
6091 ret = intel_pipe_set_base(crtc, x, y, fb);
6096 static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc,
6097 struct intel_link_m_n *m_n)
6099 struct drm_device *dev = crtc->base.dev;
6100 struct drm_i915_private *dev_priv = dev->dev_private;
6101 enum pipe pipe = crtc->pipe;
6103 m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe));
6104 m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe));
6105 m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe))
6107 m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe));
6108 m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe))
6109 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
6112 static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc,
6113 enum transcoder transcoder,
6114 struct intel_link_m_n *m_n)
6116 struct drm_device *dev = crtc->base.dev;
6117 struct drm_i915_private *dev_priv = dev->dev_private;
6118 enum pipe pipe = crtc->pipe;
6120 if (INTEL_INFO(dev)->gen >= 5) {
6121 m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder));
6122 m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder));
6123 m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder))
6125 m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder));
6126 m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder))
6127 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
6129 m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe));
6130 m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe));
6131 m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe))
6133 m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe));
6134 m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe))
6135 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
6139 void intel_dp_get_m_n(struct intel_crtc *crtc,
6140 struct intel_crtc_config *pipe_config)
6142 if (crtc->config.has_pch_encoder)
6143 intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n);
6145 intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
6146 &pipe_config->dp_m_n);
6149 static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc,
6150 struct intel_crtc_config *pipe_config)
6152 intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
6153 &pipe_config->fdi_m_n);
6156 static void ironlake_get_pfit_config(struct intel_crtc *crtc,
6157 struct intel_crtc_config *pipe_config)
6159 struct drm_device *dev = crtc->base.dev;
6160 struct drm_i915_private *dev_priv = dev->dev_private;
6163 tmp = I915_READ(PF_CTL(crtc->pipe));
6165 if (tmp & PF_ENABLE) {
6166 pipe_config->pch_pfit.enabled = true;
6167 pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe));
6168 pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe));
6170 /* We currently do not free assignements of panel fitters on
6171 * ivb/hsw (since we don't use the higher upscaling modes which
6172 * differentiates them) so just WARN about this case for now. */
6174 WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) !=
6175 PF_PIPE_SEL_IVB(crtc->pipe));
6180 static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
6181 struct intel_crtc_config *pipe_config)
6183 struct drm_device *dev = crtc->base.dev;
6184 struct drm_i915_private *dev_priv = dev->dev_private;
6187 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
6188 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
6190 tmp = I915_READ(PIPECONF(crtc->pipe));
6191 if (!(tmp & PIPECONF_ENABLE))
6194 switch (tmp & PIPECONF_BPC_MASK) {
6196 pipe_config->pipe_bpp = 18;
6199 pipe_config->pipe_bpp = 24;
6201 case PIPECONF_10BPC:
6202 pipe_config->pipe_bpp = 30;
6204 case PIPECONF_12BPC:
6205 pipe_config->pipe_bpp = 36;
6211 if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
6212 struct intel_shared_dpll *pll;
6214 pipe_config->has_pch_encoder = true;
6216 tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
6217 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
6218 FDI_DP_PORT_WIDTH_SHIFT) + 1;
6220 ironlake_get_fdi_m_n_config(crtc, pipe_config);
6222 if (HAS_PCH_IBX(dev_priv->dev)) {
6223 pipe_config->shared_dpll =
6224 (enum intel_dpll_id) crtc->pipe;
6226 tmp = I915_READ(PCH_DPLL_SEL);
6227 if (tmp & TRANS_DPLLB_SEL(crtc->pipe))
6228 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B;
6230 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A;
6233 pll = &dev_priv->shared_dplls[pipe_config->shared_dpll];
6235 WARN_ON(!pll->get_hw_state(dev_priv, pll,
6236 &pipe_config->dpll_hw_state));
6238 tmp = pipe_config->dpll_hw_state.dpll;
6239 pipe_config->pixel_multiplier =
6240 ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK)
6241 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1;
6243 ironlake_pch_clock_get(crtc, pipe_config);
6245 pipe_config->pixel_multiplier = 1;
6248 intel_get_pipe_timings(crtc, pipe_config);
6250 ironlake_get_pfit_config(crtc, pipe_config);
6255 static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
6257 struct drm_device *dev = dev_priv->dev;
6258 struct intel_ddi_plls *plls = &dev_priv->ddi_plls;
6259 struct intel_crtc *crtc;
6260 unsigned long irqflags;
6263 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
6264 WARN(crtc->base.enabled, "CRTC for pipe %c enabled\n",
6265 pipe_name(crtc->pipe));
6267 WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n");
6268 WARN(plls->spll_refcount, "SPLL enabled\n");
6269 WARN(plls->wrpll1_refcount, "WRPLL1 enabled\n");
6270 WARN(plls->wrpll2_refcount, "WRPLL2 enabled\n");
6271 WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n");
6272 WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE,
6273 "CPU PWM1 enabled\n");
6274 WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE,
6275 "CPU PWM2 enabled\n");
6276 WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE,
6277 "PCH PWM1 enabled\n");
6278 WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
6279 "Utility pin enabled\n");
6280 WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n");
6282 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
6283 val = I915_READ(DEIMR);
6284 WARN((val & ~DE_PCH_EVENT_IVB) != val,
6285 "Unexpected DEIMR bits enabled: 0x%x\n", val);
6286 val = I915_READ(SDEIMR);
6287 WARN((val | SDE_HOTPLUG_MASK_CPT) != 0xffffffff,
6288 "Unexpected SDEIMR bits enabled: 0x%x\n", val);
6289 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
6293 * This function implements pieces of two sequences from BSpec:
6294 * - Sequence for display software to disable LCPLL
6295 * - Sequence for display software to allow package C8+
6296 * The steps implemented here are just the steps that actually touch the LCPLL
6297 * register. Callers should take care of disabling all the display engine
6298 * functions, doing the mode unset, fixing interrupts, etc.
6300 static void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
6301 bool switch_to_fclk, bool allow_power_down)
6305 assert_can_disable_lcpll(dev_priv);
6307 val = I915_READ(LCPLL_CTL);
6309 if (switch_to_fclk) {
6310 val |= LCPLL_CD_SOURCE_FCLK;
6311 I915_WRITE(LCPLL_CTL, val);
6313 if (wait_for_atomic_us(I915_READ(LCPLL_CTL) &
6314 LCPLL_CD_SOURCE_FCLK_DONE, 1))
6315 DRM_ERROR("Switching to FCLK failed\n");
6317 val = I915_READ(LCPLL_CTL);
6320 val |= LCPLL_PLL_DISABLE;
6321 I915_WRITE(LCPLL_CTL, val);
6322 POSTING_READ(LCPLL_CTL);
6324 if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1))
6325 DRM_ERROR("LCPLL still locked\n");
6327 val = I915_READ(D_COMP);
6328 val |= D_COMP_COMP_DISABLE;
6329 mutex_lock(&dev_priv->rps.hw_lock);
6330 if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, val))
6331 DRM_ERROR("Failed to disable D_COMP\n");
6332 mutex_unlock(&dev_priv->rps.hw_lock);
6333 POSTING_READ(D_COMP);
6336 if (wait_for((I915_READ(D_COMP) & D_COMP_RCOMP_IN_PROGRESS) == 0, 1))
6337 DRM_ERROR("D_COMP RCOMP still in progress\n");
6339 if (allow_power_down) {
6340 val = I915_READ(LCPLL_CTL);
6341 val |= LCPLL_POWER_DOWN_ALLOW;
6342 I915_WRITE(LCPLL_CTL, val);
6343 POSTING_READ(LCPLL_CTL);
6348 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
6351 static void hsw_restore_lcpll(struct drm_i915_private *dev_priv)
6355 val = I915_READ(LCPLL_CTL);
6357 if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK |
6358 LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK)
6361 /* Make sure we're not on PC8 state before disabling PC8, otherwise
6362 * we'll hang the machine! */
6363 dev_priv->uncore.funcs.force_wake_get(dev_priv);
6365 if (val & LCPLL_POWER_DOWN_ALLOW) {
6366 val &= ~LCPLL_POWER_DOWN_ALLOW;
6367 I915_WRITE(LCPLL_CTL, val);
6368 POSTING_READ(LCPLL_CTL);
6371 val = I915_READ(D_COMP);
6372 val |= D_COMP_COMP_FORCE;
6373 val &= ~D_COMP_COMP_DISABLE;
6374 mutex_lock(&dev_priv->rps.hw_lock);
6375 if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, val))
6376 DRM_ERROR("Failed to enable D_COMP\n");
6377 mutex_unlock(&dev_priv->rps.hw_lock);
6378 POSTING_READ(D_COMP);
6380 val = I915_READ(LCPLL_CTL);
6381 val &= ~LCPLL_PLL_DISABLE;
6382 I915_WRITE(LCPLL_CTL, val);
6384 if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5))
6385 DRM_ERROR("LCPLL not locked yet\n");
6387 if (val & LCPLL_CD_SOURCE_FCLK) {
6388 val = I915_READ(LCPLL_CTL);
6389 val &= ~LCPLL_CD_SOURCE_FCLK;
6390 I915_WRITE(LCPLL_CTL, val);
6392 if (wait_for_atomic_us((I915_READ(LCPLL_CTL) &
6393 LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
6394 DRM_ERROR("Switching back to LCPLL failed\n");
6397 dev_priv->uncore.funcs.force_wake_put(dev_priv);
6400 void hsw_enable_pc8_work(struct work_struct *__work)
6402 struct drm_i915_private *dev_priv =
6403 container_of(to_delayed_work(__work), struct drm_i915_private,
6405 struct drm_device *dev = dev_priv->dev;
6408 if (dev_priv->pc8.enabled)
6411 DRM_DEBUG_KMS("Enabling package C8+\n");
6413 dev_priv->pc8.enabled = true;
6415 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
6416 val = I915_READ(SOUTH_DSPCLK_GATE_D);
6417 val &= ~PCH_LP_PARTITION_LEVEL_DISABLE;
6418 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
6421 lpt_disable_clkout_dp(dev);
6422 hsw_pc8_disable_interrupts(dev);
6423 hsw_disable_lcpll(dev_priv, true, true);
6426 static void __hsw_enable_package_c8(struct drm_i915_private *dev_priv)
6428 WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
6429 WARN(dev_priv->pc8.disable_count < 1,
6430 "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
6432 dev_priv->pc8.disable_count--;
6433 if (dev_priv->pc8.disable_count != 0)
6436 schedule_delayed_work(&dev_priv->pc8.enable_work,
6437 msecs_to_jiffies(i915_pc8_timeout));
6440 static void __hsw_disable_package_c8(struct drm_i915_private *dev_priv)
6442 struct drm_device *dev = dev_priv->dev;
6445 WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
6446 WARN(dev_priv->pc8.disable_count < 0,
6447 "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
6449 dev_priv->pc8.disable_count++;
6450 if (dev_priv->pc8.disable_count != 1)
6453 cancel_delayed_work_sync(&dev_priv->pc8.enable_work);
6454 if (!dev_priv->pc8.enabled)
6457 DRM_DEBUG_KMS("Disabling package C8+\n");
6459 hsw_restore_lcpll(dev_priv);
6460 hsw_pc8_restore_interrupts(dev);
6461 lpt_init_pch_refclk(dev);
6463 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
6464 val = I915_READ(SOUTH_DSPCLK_GATE_D);
6465 val |= PCH_LP_PARTITION_LEVEL_DISABLE;
6466 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
6469 intel_prepare_ddi(dev);
6470 i915_gem_init_swizzling(dev);
6471 mutex_lock(&dev_priv->rps.hw_lock);
6472 gen6_update_ring_freq(dev);
6473 mutex_unlock(&dev_priv->rps.hw_lock);
6474 dev_priv->pc8.enabled = false;
6477 void hsw_enable_package_c8(struct drm_i915_private *dev_priv)
6479 mutex_lock(&dev_priv->pc8.lock);
6480 __hsw_enable_package_c8(dev_priv);
6481 mutex_unlock(&dev_priv->pc8.lock);
6484 void hsw_disable_package_c8(struct drm_i915_private *dev_priv)
6486 mutex_lock(&dev_priv->pc8.lock);
6487 __hsw_disable_package_c8(dev_priv);
6488 mutex_unlock(&dev_priv->pc8.lock);
6491 static bool hsw_can_enable_package_c8(struct drm_i915_private *dev_priv)
6493 struct drm_device *dev = dev_priv->dev;
6494 struct intel_crtc *crtc;
6497 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
6498 if (crtc->base.enabled)
6501 /* This case is still possible since we have the i915.disable_power_well
6502 * parameter and also the KVMr or something else might be requesting the
6504 val = I915_READ(HSW_PWR_WELL_DRIVER);
6506 DRM_DEBUG_KMS("Not enabling PC8: power well on\n");
6513 /* Since we're called from modeset_global_resources there's no way to
6514 * symmetrically increase and decrease the refcount, so we use
6515 * dev_priv->pc8.requirements_met to track whether we already have the refcount
6518 static void hsw_update_package_c8(struct drm_device *dev)
6520 struct drm_i915_private *dev_priv = dev->dev_private;
6523 if (!i915_enable_pc8)
6526 mutex_lock(&dev_priv->pc8.lock);
6528 allow = hsw_can_enable_package_c8(dev_priv);
6530 if (allow == dev_priv->pc8.requirements_met)
6533 dev_priv->pc8.requirements_met = allow;
6536 __hsw_enable_package_c8(dev_priv);
6538 __hsw_disable_package_c8(dev_priv);
6541 mutex_unlock(&dev_priv->pc8.lock);
6544 static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv)
6546 if (!dev_priv->pc8.gpu_idle) {
6547 dev_priv->pc8.gpu_idle = true;
6548 hsw_enable_package_c8(dev_priv);
6552 static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv)
6554 if (dev_priv->pc8.gpu_idle) {
6555 dev_priv->pc8.gpu_idle = false;
6556 hsw_disable_package_c8(dev_priv);
6560 #define for_each_power_domain(domain, mask) \
6561 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
6562 if ((1 << (domain)) & (mask))
6564 static unsigned long get_pipe_power_domains(struct drm_device *dev,
6565 enum pipe pipe, bool pfit_enabled)
6568 enum transcoder transcoder;
6570 transcoder = intel_pipe_to_cpu_transcoder(dev->dev_private, pipe);
6572 mask = BIT(POWER_DOMAIN_PIPE(pipe));
6573 mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder));
6575 mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe));
6580 void intel_display_set_init_power(struct drm_device *dev, bool enable)
6582 struct drm_i915_private *dev_priv = dev->dev_private;
6584 if (dev_priv->power_domains.init_power_on == enable)
6588 intel_display_power_get(dev, POWER_DOMAIN_INIT);
6590 intel_display_power_put(dev, POWER_DOMAIN_INIT);
6592 dev_priv->power_domains.init_power_on = enable;
6595 static void modeset_update_power_wells(struct drm_device *dev)
6597 unsigned long pipe_domains[I915_MAX_PIPES] = { 0, };
6598 struct intel_crtc *crtc;
6601 * First get all needed power domains, then put all unneeded, to avoid
6602 * any unnecessary toggling of the power wells.
6604 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
6605 enum intel_display_power_domain domain;
6607 if (!crtc->base.enabled)
6610 pipe_domains[crtc->pipe] = get_pipe_power_domains(dev,
6612 crtc->config.pch_pfit.enabled);
6614 for_each_power_domain(domain, pipe_domains[crtc->pipe])
6615 intel_display_power_get(dev, domain);
6618 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
6619 enum intel_display_power_domain domain;
6621 for_each_power_domain(domain, crtc->enabled_power_domains)
6622 intel_display_power_put(dev, domain);
6624 crtc->enabled_power_domains = pipe_domains[crtc->pipe];
6627 intel_display_set_init_power(dev, false);
6630 static void haswell_modeset_global_resources(struct drm_device *dev)
6632 modeset_update_power_wells(dev);
6633 hsw_update_package_c8(dev);
6636 static int haswell_crtc_mode_set(struct drm_crtc *crtc,
6638 struct drm_framebuffer *fb)
6640 struct drm_device *dev = crtc->dev;
6641 struct drm_i915_private *dev_priv = dev->dev_private;
6642 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6643 int plane = intel_crtc->plane;
6646 if (!intel_ddi_pll_mode_set(crtc))
6649 if (intel_crtc->config.has_dp_encoder)
6650 intel_dp_set_m_n(intel_crtc);
6652 intel_crtc->lowfreq_avail = false;
6654 intel_set_pipe_timings(intel_crtc);
6656 if (intel_crtc->config.has_pch_encoder) {
6657 intel_cpu_transcoder_set_m_n(intel_crtc,
6658 &intel_crtc->config.fdi_m_n);
6661 haswell_set_pipeconf(crtc);
6663 intel_set_pipe_csc(crtc);
6665 /* Set up the display plane register */
6666 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
6667 POSTING_READ(DSPCNTR(plane));
6669 ret = intel_pipe_set_base(crtc, x, y, fb);
6674 static bool haswell_get_pipe_config(struct intel_crtc *crtc,
6675 struct intel_crtc_config *pipe_config)
6677 struct drm_device *dev = crtc->base.dev;
6678 struct drm_i915_private *dev_priv = dev->dev_private;
6679 enum intel_display_power_domain pfit_domain;
6682 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
6683 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
6685 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
6686 if (tmp & TRANS_DDI_FUNC_ENABLE) {
6687 enum pipe trans_edp_pipe;
6688 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
6690 WARN(1, "unknown pipe linked to edp transcoder\n");
6691 case TRANS_DDI_EDP_INPUT_A_ONOFF:
6692 case TRANS_DDI_EDP_INPUT_A_ON:
6693 trans_edp_pipe = PIPE_A;
6695 case TRANS_DDI_EDP_INPUT_B_ONOFF:
6696 trans_edp_pipe = PIPE_B;
6698 case TRANS_DDI_EDP_INPUT_C_ONOFF:
6699 trans_edp_pipe = PIPE_C;
6703 if (trans_edp_pipe == crtc->pipe)
6704 pipe_config->cpu_transcoder = TRANSCODER_EDP;
6707 if (!intel_display_power_enabled(dev,
6708 POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder)))
6711 tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder));
6712 if (!(tmp & PIPECONF_ENABLE))
6716 * Haswell has only FDI/PCH transcoder A. It is which is connected to
6717 * DDI E. So just check whether this pipe is wired to DDI E and whether
6718 * the PCH transcoder is on.
6720 tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
6721 if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
6722 I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
6723 pipe_config->has_pch_encoder = true;
6725 tmp = I915_READ(FDI_RX_CTL(PIPE_A));
6726 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
6727 FDI_DP_PORT_WIDTH_SHIFT) + 1;
6729 ironlake_get_fdi_m_n_config(crtc, pipe_config);
6732 intel_get_pipe_timings(crtc, pipe_config);
6734 pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
6735 if (intel_display_power_enabled(dev, pfit_domain))
6736 ironlake_get_pfit_config(crtc, pipe_config);
6738 pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) &&
6739 (I915_READ(IPS_CTL) & IPS_ENABLE);
6741 pipe_config->pixel_multiplier = 1;
6746 static int intel_crtc_mode_set(struct drm_crtc *crtc,
6748 struct drm_framebuffer *fb)
6750 struct drm_device *dev = crtc->dev;
6751 struct drm_i915_private *dev_priv = dev->dev_private;
6752 struct intel_encoder *encoder;
6753 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6754 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
6755 int pipe = intel_crtc->pipe;
6758 drm_vblank_pre_modeset(dev, pipe);
6760 ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
6762 drm_vblank_post_modeset(dev, pipe);
6767 for_each_encoder_on_crtc(dev, crtc, encoder) {
6768 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
6769 encoder->base.base.id,
6770 drm_get_encoder_name(&encoder->base),
6771 mode->base.id, mode->name);
6772 encoder->mode_set(encoder);
6781 } hdmi_audio_clock[] = {
6782 { DIV_ROUND_UP(25200 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_25175 },
6783 { 25200, AUD_CONFIG_PIXEL_CLOCK_HDMI_25200 }, /* default per bspec */
6784 { 27000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27000 },
6785 { 27000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27027 },
6786 { 54000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54000 },
6787 { 54000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54054 },
6788 { DIV_ROUND_UP(74250 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_74176 },
6789 { 74250, AUD_CONFIG_PIXEL_CLOCK_HDMI_74250 },
6790 { DIV_ROUND_UP(148500 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_148352 },
6791 { 148500, AUD_CONFIG_PIXEL_CLOCK_HDMI_148500 },
6794 /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */
6795 static u32 audio_config_hdmi_pixel_clock(struct drm_display_mode *mode)
6799 for (i = 0; i < ARRAY_SIZE(hdmi_audio_clock); i++) {
6800 if (mode->clock == hdmi_audio_clock[i].clock)
6804 if (i == ARRAY_SIZE(hdmi_audio_clock)) {
6805 DRM_DEBUG_KMS("HDMI audio pixel clock setting for %d not found, falling back to defaults\n", mode->clock);
6809 DRM_DEBUG_KMS("Configuring HDMI audio for pixel clock %d (0x%08x)\n",
6810 hdmi_audio_clock[i].clock,
6811 hdmi_audio_clock[i].config);
6813 return hdmi_audio_clock[i].config;
6816 static bool intel_eld_uptodate(struct drm_connector *connector,
6817 int reg_eldv, uint32_t bits_eldv,
6818 int reg_elda, uint32_t bits_elda,
6821 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6822 uint8_t *eld = connector->eld;
6825 i = I915_READ(reg_eldv);
6834 i = I915_READ(reg_elda);
6836 I915_WRITE(reg_elda, i);
6838 for (i = 0; i < eld[2]; i++)
6839 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
6845 static void g4x_write_eld(struct drm_connector *connector,
6846 struct drm_crtc *crtc,
6847 struct drm_display_mode *mode)
6849 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6850 uint8_t *eld = connector->eld;
6855 i = I915_READ(G4X_AUD_VID_DID);
6857 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
6858 eldv = G4X_ELDV_DEVCL_DEVBLC;
6860 eldv = G4X_ELDV_DEVCTG;
6862 if (intel_eld_uptodate(connector,
6863 G4X_AUD_CNTL_ST, eldv,
6864 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
6865 G4X_HDMIW_HDMIEDID))
6868 i = I915_READ(G4X_AUD_CNTL_ST);
6869 i &= ~(eldv | G4X_ELD_ADDR);
6870 len = (i >> 9) & 0x1f; /* ELD buffer size */
6871 I915_WRITE(G4X_AUD_CNTL_ST, i);
6876 len = min_t(uint8_t, eld[2], len);
6877 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6878 for (i = 0; i < len; i++)
6879 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
6881 i = I915_READ(G4X_AUD_CNTL_ST);
6883 I915_WRITE(G4X_AUD_CNTL_ST, i);
6886 static void haswell_write_eld(struct drm_connector *connector,
6887 struct drm_crtc *crtc,
6888 struct drm_display_mode *mode)
6890 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6891 uint8_t *eld = connector->eld;
6892 struct drm_device *dev = crtc->dev;
6893 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6897 int pipe = to_intel_crtc(crtc)->pipe;
6900 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
6901 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
6902 int aud_config = HSW_AUD_CFG(pipe);
6903 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
6906 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
6908 /* Audio output enable */
6909 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
6910 tmp = I915_READ(aud_cntrl_st2);
6911 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
6912 I915_WRITE(aud_cntrl_st2, tmp);
6914 /* Wait for 1 vertical blank */
6915 intel_wait_for_vblank(dev, pipe);
6917 /* Set ELD valid state */
6918 tmp = I915_READ(aud_cntrl_st2);
6919 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp);
6920 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
6921 I915_WRITE(aud_cntrl_st2, tmp);
6922 tmp = I915_READ(aud_cntrl_st2);
6923 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp);
6925 /* Enable HDMI mode */
6926 tmp = I915_READ(aud_config);
6927 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp);
6928 /* clear N_programing_enable and N_value_index */
6929 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
6930 I915_WRITE(aud_config, tmp);
6932 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6934 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
6935 intel_crtc->eld_vld = true;
6937 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6938 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6939 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6940 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6942 I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode));
6945 if (intel_eld_uptodate(connector,
6946 aud_cntrl_st2, eldv,
6947 aud_cntl_st, IBX_ELD_ADDRESS,
6951 i = I915_READ(aud_cntrl_st2);
6953 I915_WRITE(aud_cntrl_st2, i);
6958 i = I915_READ(aud_cntl_st);
6959 i &= ~IBX_ELD_ADDRESS;
6960 I915_WRITE(aud_cntl_st, i);
6961 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6962 DRM_DEBUG_DRIVER("port num:%d\n", i);
6964 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6965 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6966 for (i = 0; i < len; i++)
6967 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6969 i = I915_READ(aud_cntrl_st2);
6971 I915_WRITE(aud_cntrl_st2, i);
6975 static void ironlake_write_eld(struct drm_connector *connector,
6976 struct drm_crtc *crtc,
6977 struct drm_display_mode *mode)
6979 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6980 uint8_t *eld = connector->eld;
6988 int pipe = to_intel_crtc(crtc)->pipe;
6990 if (HAS_PCH_IBX(connector->dev)) {
6991 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
6992 aud_config = IBX_AUD_CFG(pipe);
6993 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
6994 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
6996 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
6997 aud_config = CPT_AUD_CFG(pipe);
6998 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
6999 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
7002 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
7004 i = I915_READ(aud_cntl_st);
7005 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
7007 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
7008 /* operate blindly on all ports */
7009 eldv = IBX_ELD_VALIDB;
7010 eldv |= IBX_ELD_VALIDB << 4;
7011 eldv |= IBX_ELD_VALIDB << 8;
7013 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i));
7014 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
7017 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
7018 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
7019 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
7020 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
7022 I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode));
7025 if (intel_eld_uptodate(connector,
7026 aud_cntrl_st2, eldv,
7027 aud_cntl_st, IBX_ELD_ADDRESS,
7031 i = I915_READ(aud_cntrl_st2);
7033 I915_WRITE(aud_cntrl_st2, i);
7038 i = I915_READ(aud_cntl_st);
7039 i &= ~IBX_ELD_ADDRESS;
7040 I915_WRITE(aud_cntl_st, i);
7042 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
7043 DRM_DEBUG_DRIVER("ELD size %d\n", len);
7044 for (i = 0; i < len; i++)
7045 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
7047 i = I915_READ(aud_cntrl_st2);
7049 I915_WRITE(aud_cntrl_st2, i);
7052 void intel_write_eld(struct drm_encoder *encoder,
7053 struct drm_display_mode *mode)
7055 struct drm_crtc *crtc = encoder->crtc;
7056 struct drm_connector *connector;
7057 struct drm_device *dev = encoder->dev;
7058 struct drm_i915_private *dev_priv = dev->dev_private;
7060 connector = drm_select_eld(encoder, mode);
7064 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7066 drm_get_connector_name(connector),
7067 connector->encoder->base.id,
7068 drm_get_encoder_name(connector->encoder));
7070 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
7072 if (dev_priv->display.write_eld)
7073 dev_priv->display.write_eld(connector, crtc, mode);
7076 static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
7078 struct drm_device *dev = crtc->dev;
7079 struct drm_i915_private *dev_priv = dev->dev_private;
7080 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7081 bool visible = base != 0;
7084 if (intel_crtc->cursor_visible == visible)
7087 cntl = I915_READ(_CURACNTR);
7089 /* On these chipsets we can only modify the base whilst
7090 * the cursor is disabled.
7092 I915_WRITE(_CURABASE, base);
7094 cntl &= ~(CURSOR_FORMAT_MASK);
7095 /* XXX width must be 64, stride 256 => 0x00 << 28 */
7096 cntl |= CURSOR_ENABLE |
7097 CURSOR_GAMMA_ENABLE |
7100 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
7101 I915_WRITE(_CURACNTR, cntl);
7103 intel_crtc->cursor_visible = visible;
7106 static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
7108 struct drm_device *dev = crtc->dev;
7109 struct drm_i915_private *dev_priv = dev->dev_private;
7110 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7111 int pipe = intel_crtc->pipe;
7112 bool visible = base != 0;
7114 if (intel_crtc->cursor_visible != visible) {
7115 uint32_t cntl = I915_READ(CURCNTR(pipe));
7117 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
7118 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
7119 cntl |= pipe << 28; /* Connect to correct pipe */
7121 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
7122 cntl |= CURSOR_MODE_DISABLE;
7124 I915_WRITE(CURCNTR(pipe), cntl);
7126 intel_crtc->cursor_visible = visible;
7128 /* and commit changes on next vblank */
7129 I915_WRITE(CURBASE(pipe), base);
7132 static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
7134 struct drm_device *dev = crtc->dev;
7135 struct drm_i915_private *dev_priv = dev->dev_private;
7136 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7137 int pipe = intel_crtc->pipe;
7138 bool visible = base != 0;
7140 if (intel_crtc->cursor_visible != visible) {
7141 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
7143 cntl &= ~CURSOR_MODE;
7144 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
7146 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
7147 cntl |= CURSOR_MODE_DISABLE;
7149 if (IS_HASWELL(dev)) {
7150 cntl |= CURSOR_PIPE_CSC_ENABLE;
7151 cntl &= ~CURSOR_TRICKLE_FEED_DISABLE;
7153 I915_WRITE(CURCNTR_IVB(pipe), cntl);
7155 intel_crtc->cursor_visible = visible;
7157 /* and commit changes on next vblank */
7158 I915_WRITE(CURBASE_IVB(pipe), base);
7161 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
7162 static void intel_crtc_update_cursor(struct drm_crtc *crtc,
7165 struct drm_device *dev = crtc->dev;
7166 struct drm_i915_private *dev_priv = dev->dev_private;
7167 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7168 int pipe = intel_crtc->pipe;
7169 int x = intel_crtc->cursor_x;
7170 int y = intel_crtc->cursor_y;
7171 u32 base = 0, pos = 0;
7175 base = intel_crtc->cursor_addr;
7177 if (x >= intel_crtc->config.pipe_src_w)
7180 if (y >= intel_crtc->config.pipe_src_h)
7184 if (x + intel_crtc->cursor_width <= 0)
7187 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
7190 pos |= x << CURSOR_X_SHIFT;
7193 if (y + intel_crtc->cursor_height <= 0)
7196 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
7199 pos |= y << CURSOR_Y_SHIFT;
7201 visible = base != 0;
7202 if (!visible && !intel_crtc->cursor_visible)
7205 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
7206 I915_WRITE(CURPOS_IVB(pipe), pos);
7207 ivb_update_cursor(crtc, base);
7209 I915_WRITE(CURPOS(pipe), pos);
7210 if (IS_845G(dev) || IS_I865G(dev))
7211 i845_update_cursor(crtc, base);
7213 i9xx_update_cursor(crtc, base);
7217 static int intel_crtc_cursor_set(struct drm_crtc *crtc,
7218 struct drm_file *file,
7220 uint32_t width, uint32_t height)
7222 struct drm_device *dev = crtc->dev;
7223 struct drm_i915_private *dev_priv = dev->dev_private;
7224 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7225 struct drm_i915_gem_object *obj;
7229 /* if we want to turn off the cursor ignore width and height */
7231 DRM_DEBUG_KMS("cursor off\n");
7234 mutex_lock(&dev->struct_mutex);
7238 /* Currently we only support 64x64 cursors */
7239 if (width != 64 || height != 64) {
7240 DRM_ERROR("we currently only support 64x64 cursors\n");
7244 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
7245 if (&obj->base == NULL)
7248 if (obj->base.size < width * height * 4) {
7249 DRM_ERROR("buffer is to small\n");
7254 /* we only need to pin inside GTT if cursor is non-phy */
7255 mutex_lock(&dev->struct_mutex);
7256 if (!dev_priv->info->cursor_needs_physical) {
7259 if (obj->tiling_mode) {
7260 DRM_ERROR("cursor cannot be tiled\n");
7265 /* Note that the w/a also requires 2 PTE of padding following
7266 * the bo. We currently fill all unused PTE with the shadow
7267 * page and so we should always have valid PTE following the
7268 * cursor preventing the VT-d warning.
7271 if (need_vtd_wa(dev))
7272 alignment = 64*1024;
7274 ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
7276 DRM_ERROR("failed to move cursor bo into the GTT\n");
7280 ret = i915_gem_object_put_fence(obj);
7282 DRM_ERROR("failed to release fence for cursor");
7286 addr = i915_gem_obj_ggtt_offset(obj);
7288 int align = IS_I830(dev) ? 16 * 1024 : 256;
7289 ret = i915_gem_attach_phys_object(dev, obj,
7290 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
7293 DRM_ERROR("failed to attach phys object\n");
7296 addr = obj->phys_obj->handle->busaddr;
7300 I915_WRITE(CURSIZE, (height << 12) | width);
7303 if (intel_crtc->cursor_bo) {
7304 if (dev_priv->info->cursor_needs_physical) {
7305 if (intel_crtc->cursor_bo != obj)
7306 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
7308 i915_gem_object_unpin_from_display_plane(intel_crtc->cursor_bo);
7309 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
7312 mutex_unlock(&dev->struct_mutex);
7314 intel_crtc->cursor_addr = addr;
7315 intel_crtc->cursor_bo = obj;
7316 intel_crtc->cursor_width = width;
7317 intel_crtc->cursor_height = height;
7319 if (intel_crtc->active)
7320 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
7324 i915_gem_object_unpin_from_display_plane(obj);
7326 mutex_unlock(&dev->struct_mutex);
7328 drm_gem_object_unreference_unlocked(&obj->base);
7332 static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
7334 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7336 intel_crtc->cursor_x = clamp_t(int, x, SHRT_MIN, SHRT_MAX);
7337 intel_crtc->cursor_y = clamp_t(int, y, SHRT_MIN, SHRT_MAX);
7339 if (intel_crtc->active)
7340 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
7345 static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
7346 u16 *blue, uint32_t start, uint32_t size)
7348 int end = (start + size > 256) ? 256 : start + size, i;
7349 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7351 for (i = start; i < end; i++) {
7352 intel_crtc->lut_r[i] = red[i] >> 8;
7353 intel_crtc->lut_g[i] = green[i] >> 8;
7354 intel_crtc->lut_b[i] = blue[i] >> 8;
7357 intel_crtc_load_lut(crtc);
7360 /* VESA 640x480x72Hz mode to set on the pipe */
7361 static struct drm_display_mode load_detect_mode = {
7362 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
7363 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
7366 static struct drm_framebuffer *
7367 intel_framebuffer_create(struct drm_device *dev,
7368 struct drm_mode_fb_cmd2 *mode_cmd,
7369 struct drm_i915_gem_object *obj)
7371 struct intel_framebuffer *intel_fb;
7374 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
7376 drm_gem_object_unreference_unlocked(&obj->base);
7377 return ERR_PTR(-ENOMEM);
7380 ret = i915_mutex_lock_interruptible(dev);
7384 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
7385 mutex_unlock(&dev->struct_mutex);
7389 return &intel_fb->base;
7391 drm_gem_object_unreference_unlocked(&obj->base);
7394 return ERR_PTR(ret);
7398 intel_framebuffer_pitch_for_width(int width, int bpp)
7400 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
7401 return ALIGN(pitch, 64);
7405 intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
7407 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
7408 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
7411 static struct drm_framebuffer *
7412 intel_framebuffer_create_for_mode(struct drm_device *dev,
7413 struct drm_display_mode *mode,
7416 struct drm_i915_gem_object *obj;
7417 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
7419 obj = i915_gem_alloc_object(dev,
7420 intel_framebuffer_size_for_mode(mode, bpp));
7422 return ERR_PTR(-ENOMEM);
7424 mode_cmd.width = mode->hdisplay;
7425 mode_cmd.height = mode->vdisplay;
7426 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
7428 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
7430 return intel_framebuffer_create(dev, &mode_cmd, obj);
7433 static struct drm_framebuffer *
7434 mode_fits_in_fbdev(struct drm_device *dev,
7435 struct drm_display_mode *mode)
7437 #ifdef CONFIG_DRM_I915_FBDEV
7438 struct drm_i915_private *dev_priv = dev->dev_private;
7439 struct drm_i915_gem_object *obj;
7440 struct drm_framebuffer *fb;
7442 if (dev_priv->fbdev == NULL)
7445 obj = dev_priv->fbdev->ifb.obj;
7449 fb = &dev_priv->fbdev->ifb.base;
7450 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
7451 fb->bits_per_pixel))
7454 if (obj->base.size < mode->vdisplay * fb->pitches[0])
7463 bool intel_get_load_detect_pipe(struct drm_connector *connector,
7464 struct drm_display_mode *mode,
7465 struct intel_load_detect_pipe *old)
7467 struct intel_crtc *intel_crtc;
7468 struct intel_encoder *intel_encoder =
7469 intel_attached_encoder(connector);
7470 struct drm_crtc *possible_crtc;
7471 struct drm_encoder *encoder = &intel_encoder->base;
7472 struct drm_crtc *crtc = NULL;
7473 struct drm_device *dev = encoder->dev;
7474 struct drm_framebuffer *fb;
7477 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7478 connector->base.id, drm_get_connector_name(connector),
7479 encoder->base.id, drm_get_encoder_name(encoder));
7482 * Algorithm gets a little messy:
7484 * - if the connector already has an assigned crtc, use it (but make
7485 * sure it's on first)
7487 * - try to find the first unused crtc that can drive this connector,
7488 * and use that if we find one
7491 /* See if we already have a CRTC for this connector */
7492 if (encoder->crtc) {
7493 crtc = encoder->crtc;
7495 mutex_lock(&crtc->mutex);
7497 old->dpms_mode = connector->dpms;
7498 old->load_detect_temp = false;
7500 /* Make sure the crtc and connector are running */
7501 if (connector->dpms != DRM_MODE_DPMS_ON)
7502 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
7507 /* Find an unused one (if possible) */
7508 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
7510 if (!(encoder->possible_crtcs & (1 << i)))
7512 if (!possible_crtc->enabled) {
7513 crtc = possible_crtc;
7519 * If we didn't find an unused CRTC, don't use any.
7522 DRM_DEBUG_KMS("no pipe available for load-detect\n");
7526 mutex_lock(&crtc->mutex);
7527 intel_encoder->new_crtc = to_intel_crtc(crtc);
7528 to_intel_connector(connector)->new_encoder = intel_encoder;
7530 intel_crtc = to_intel_crtc(crtc);
7531 old->dpms_mode = connector->dpms;
7532 old->load_detect_temp = true;
7533 old->release_fb = NULL;
7536 mode = &load_detect_mode;
7538 /* We need a framebuffer large enough to accommodate all accesses
7539 * that the plane may generate whilst we perform load detection.
7540 * We can not rely on the fbcon either being present (we get called
7541 * during its initialisation to detect all boot displays, or it may
7542 * not even exist) or that it is large enough to satisfy the
7545 fb = mode_fits_in_fbdev(dev, mode);
7547 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
7548 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
7549 old->release_fb = fb;
7551 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
7553 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
7554 mutex_unlock(&crtc->mutex);
7558 if (intel_set_mode(crtc, mode, 0, 0, fb)) {
7559 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
7560 if (old->release_fb)
7561 old->release_fb->funcs->destroy(old->release_fb);
7562 mutex_unlock(&crtc->mutex);
7566 /* let the connector get through one full cycle before testing */
7567 intel_wait_for_vblank(dev, intel_crtc->pipe);
7571 void intel_release_load_detect_pipe(struct drm_connector *connector,
7572 struct intel_load_detect_pipe *old)
7574 struct intel_encoder *intel_encoder =
7575 intel_attached_encoder(connector);
7576 struct drm_encoder *encoder = &intel_encoder->base;
7577 struct drm_crtc *crtc = encoder->crtc;
7579 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7580 connector->base.id, drm_get_connector_name(connector),
7581 encoder->base.id, drm_get_encoder_name(encoder));
7583 if (old->load_detect_temp) {
7584 to_intel_connector(connector)->new_encoder = NULL;
7585 intel_encoder->new_crtc = NULL;
7586 intel_set_mode(crtc, NULL, 0, 0, NULL);
7588 if (old->release_fb) {
7589 drm_framebuffer_unregister_private(old->release_fb);
7590 drm_framebuffer_unreference(old->release_fb);
7593 mutex_unlock(&crtc->mutex);
7597 /* Switch crtc and encoder back off if necessary */
7598 if (old->dpms_mode != DRM_MODE_DPMS_ON)
7599 connector->funcs->dpms(connector, old->dpms_mode);
7601 mutex_unlock(&crtc->mutex);
7604 static int i9xx_pll_refclk(struct drm_device *dev,
7605 const struct intel_crtc_config *pipe_config)
7607 struct drm_i915_private *dev_priv = dev->dev_private;
7608 u32 dpll = pipe_config->dpll_hw_state.dpll;
7610 if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN)
7611 return dev_priv->vbt.lvds_ssc_freq * 1000;
7612 else if (HAS_PCH_SPLIT(dev))
7614 else if (!IS_GEN2(dev))
7620 /* Returns the clock of the currently programmed mode of the given pipe. */
7621 static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
7622 struct intel_crtc_config *pipe_config)
7624 struct drm_device *dev = crtc->base.dev;
7625 struct drm_i915_private *dev_priv = dev->dev_private;
7626 int pipe = pipe_config->cpu_transcoder;
7627 u32 dpll = pipe_config->dpll_hw_state.dpll;
7629 intel_clock_t clock;
7630 int refclk = i9xx_pll_refclk(dev, pipe_config);
7632 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
7633 fp = pipe_config->dpll_hw_state.fp0;
7635 fp = pipe_config->dpll_hw_state.fp1;
7637 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
7638 if (IS_PINEVIEW(dev)) {
7639 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
7640 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
7642 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
7643 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
7646 if (!IS_GEN2(dev)) {
7647 if (IS_PINEVIEW(dev))
7648 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
7649 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
7651 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
7652 DPLL_FPA01_P1_POST_DIV_SHIFT);
7654 switch (dpll & DPLL_MODE_MASK) {
7655 case DPLLB_MODE_DAC_SERIAL:
7656 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
7659 case DPLLB_MODE_LVDS:
7660 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
7664 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
7665 "mode\n", (int)(dpll & DPLL_MODE_MASK));
7669 if (IS_PINEVIEW(dev))
7670 pineview_clock(refclk, &clock);
7672 i9xx_clock(refclk, &clock);
7674 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
7677 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
7678 DPLL_FPA01_P1_POST_DIV_SHIFT);
7681 if (dpll & PLL_P1_DIVIDE_BY_TWO)
7684 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
7685 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
7687 if (dpll & PLL_P2_DIVIDE_BY_4)
7693 i9xx_clock(refclk, &clock);
7697 * This value includes pixel_multiplier. We will use
7698 * port_clock to compute adjusted_mode.crtc_clock in the
7699 * encoder's get_config() function.
7701 pipe_config->port_clock = clock.dot;
7704 int intel_dotclock_calculate(int link_freq,
7705 const struct intel_link_m_n *m_n)
7708 * The calculation for the data clock is:
7709 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
7710 * But we want to avoid losing precison if possible, so:
7711 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
7713 * and the link clock is simpler:
7714 * link_clock = (m * link_clock) / n
7720 return div_u64((u64)m_n->link_m * link_freq, m_n->link_n);
7723 static void ironlake_pch_clock_get(struct intel_crtc *crtc,
7724 struct intel_crtc_config *pipe_config)
7726 struct drm_device *dev = crtc->base.dev;
7728 /* read out port_clock from the DPLL */
7729 i9xx_crtc_clock_get(crtc, pipe_config);
7732 * This value does not include pixel_multiplier.
7733 * We will check that port_clock and adjusted_mode.crtc_clock
7734 * agree once we know their relationship in the encoder's
7735 * get_config() function.
7737 pipe_config->adjusted_mode.crtc_clock =
7738 intel_dotclock_calculate(intel_fdi_link_freq(dev) * 10000,
7739 &pipe_config->fdi_m_n);
7742 /** Returns the currently programmed mode of the given pipe. */
7743 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
7744 struct drm_crtc *crtc)
7746 struct drm_i915_private *dev_priv = dev->dev_private;
7747 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7748 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
7749 struct drm_display_mode *mode;
7750 struct intel_crtc_config pipe_config;
7751 int htot = I915_READ(HTOTAL(cpu_transcoder));
7752 int hsync = I915_READ(HSYNC(cpu_transcoder));
7753 int vtot = I915_READ(VTOTAL(cpu_transcoder));
7754 int vsync = I915_READ(VSYNC(cpu_transcoder));
7755 enum pipe pipe = intel_crtc->pipe;
7757 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
7762 * Construct a pipe_config sufficient for getting the clock info
7763 * back out of crtc_clock_get.
7765 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
7766 * to use a real value here instead.
7768 pipe_config.cpu_transcoder = (enum transcoder) pipe;
7769 pipe_config.pixel_multiplier = 1;
7770 pipe_config.dpll_hw_state.dpll = I915_READ(DPLL(pipe));
7771 pipe_config.dpll_hw_state.fp0 = I915_READ(FP0(pipe));
7772 pipe_config.dpll_hw_state.fp1 = I915_READ(FP1(pipe));
7773 i9xx_crtc_clock_get(intel_crtc, &pipe_config);
7775 mode->clock = pipe_config.port_clock / pipe_config.pixel_multiplier;
7776 mode->hdisplay = (htot & 0xffff) + 1;
7777 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
7778 mode->hsync_start = (hsync & 0xffff) + 1;
7779 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
7780 mode->vdisplay = (vtot & 0xffff) + 1;
7781 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
7782 mode->vsync_start = (vsync & 0xffff) + 1;
7783 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
7785 drm_mode_set_name(mode);
7790 static void intel_increase_pllclock(struct drm_crtc *crtc)
7792 struct drm_device *dev = crtc->dev;
7793 drm_i915_private_t *dev_priv = dev->dev_private;
7794 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7795 int pipe = intel_crtc->pipe;
7796 int dpll_reg = DPLL(pipe);
7799 if (HAS_PCH_SPLIT(dev))
7802 if (!dev_priv->lvds_downclock_avail)
7805 dpll = I915_READ(dpll_reg);
7806 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
7807 DRM_DEBUG_DRIVER("upclocking LVDS\n");
7809 assert_panel_unlocked(dev_priv, pipe);
7811 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
7812 I915_WRITE(dpll_reg, dpll);
7813 intel_wait_for_vblank(dev, pipe);
7815 dpll = I915_READ(dpll_reg);
7816 if (dpll & DISPLAY_RATE_SELECT_FPA1)
7817 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
7821 static void intel_decrease_pllclock(struct drm_crtc *crtc)
7823 struct drm_device *dev = crtc->dev;
7824 drm_i915_private_t *dev_priv = dev->dev_private;
7825 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7827 if (HAS_PCH_SPLIT(dev))
7830 if (!dev_priv->lvds_downclock_avail)
7834 * Since this is called by a timer, we should never get here in
7837 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
7838 int pipe = intel_crtc->pipe;
7839 int dpll_reg = DPLL(pipe);
7842 DRM_DEBUG_DRIVER("downclocking LVDS\n");
7844 assert_panel_unlocked(dev_priv, pipe);
7846 dpll = I915_READ(dpll_reg);
7847 dpll |= DISPLAY_RATE_SELECT_FPA1;
7848 I915_WRITE(dpll_reg, dpll);
7849 intel_wait_for_vblank(dev, pipe);
7850 dpll = I915_READ(dpll_reg);
7851 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
7852 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
7857 void intel_mark_busy(struct drm_device *dev)
7859 struct drm_i915_private *dev_priv = dev->dev_private;
7861 hsw_package_c8_gpu_busy(dev_priv);
7862 i915_update_gfx_val(dev_priv);
7865 void intel_mark_idle(struct drm_device *dev)
7867 struct drm_i915_private *dev_priv = dev->dev_private;
7868 struct drm_crtc *crtc;
7870 hsw_package_c8_gpu_idle(dev_priv);
7872 if (!i915_powersave)
7875 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7879 intel_decrease_pllclock(crtc);
7882 if (dev_priv->info->gen >= 6)
7883 gen6_rps_idle(dev->dev_private);
7886 void intel_mark_fb_busy(struct drm_i915_gem_object *obj,
7887 struct intel_ring_buffer *ring)
7889 struct drm_device *dev = obj->base.dev;
7890 struct drm_crtc *crtc;
7892 if (!i915_powersave)
7895 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7899 if (to_intel_framebuffer(crtc->fb)->obj != obj)
7902 intel_increase_pllclock(crtc);
7903 if (ring && intel_fbc_enabled(dev))
7904 ring->fbc_dirty = true;
7908 static void intel_crtc_destroy(struct drm_crtc *crtc)
7910 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7911 struct drm_device *dev = crtc->dev;
7912 struct intel_unpin_work *work;
7913 unsigned long flags;
7915 spin_lock_irqsave(&dev->event_lock, flags);
7916 work = intel_crtc->unpin_work;
7917 intel_crtc->unpin_work = NULL;
7918 spin_unlock_irqrestore(&dev->event_lock, flags);
7921 cancel_work_sync(&work->work);
7925 intel_crtc_cursor_set(crtc, NULL, 0, 0, 0);
7927 drm_crtc_cleanup(crtc);
7932 static void intel_unpin_work_fn(struct work_struct *__work)
7934 struct intel_unpin_work *work =
7935 container_of(__work, struct intel_unpin_work, work);
7936 struct drm_device *dev = work->crtc->dev;
7938 mutex_lock(&dev->struct_mutex);
7939 intel_unpin_fb_obj(work->old_fb_obj);
7940 drm_gem_object_unreference(&work->pending_flip_obj->base);
7941 drm_gem_object_unreference(&work->old_fb_obj->base);
7943 intel_update_fbc(dev);
7944 mutex_unlock(&dev->struct_mutex);
7946 BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
7947 atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
7952 static void do_intel_finish_page_flip(struct drm_device *dev,
7953 struct drm_crtc *crtc)
7955 drm_i915_private_t *dev_priv = dev->dev_private;
7956 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7957 struct intel_unpin_work *work;
7958 unsigned long flags;
7960 /* Ignore early vblank irqs */
7961 if (intel_crtc == NULL)
7964 spin_lock_irqsave(&dev->event_lock, flags);
7965 work = intel_crtc->unpin_work;
7967 /* Ensure we don't miss a work->pending update ... */
7970 if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
7971 spin_unlock_irqrestore(&dev->event_lock, flags);
7975 /* and that the unpin work is consistent wrt ->pending. */
7978 intel_crtc->unpin_work = NULL;
7981 drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
7983 drm_vblank_put(dev, intel_crtc->pipe);
7985 spin_unlock_irqrestore(&dev->event_lock, flags);
7987 wake_up_all(&dev_priv->pending_flip_queue);
7989 queue_work(dev_priv->wq, &work->work);
7991 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
7994 void intel_finish_page_flip(struct drm_device *dev, int pipe)
7996 drm_i915_private_t *dev_priv = dev->dev_private;
7997 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
7999 do_intel_finish_page_flip(dev, crtc);
8002 void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
8004 drm_i915_private_t *dev_priv = dev->dev_private;
8005 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
8007 do_intel_finish_page_flip(dev, crtc);
8010 void intel_prepare_page_flip(struct drm_device *dev, int plane)
8012 drm_i915_private_t *dev_priv = dev->dev_private;
8013 struct intel_crtc *intel_crtc =
8014 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
8015 unsigned long flags;
8017 /* NB: An MMIO update of the plane base pointer will also
8018 * generate a page-flip completion irq, i.e. every modeset
8019 * is also accompanied by a spurious intel_prepare_page_flip().
8021 spin_lock_irqsave(&dev->event_lock, flags);
8022 if (intel_crtc->unpin_work)
8023 atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
8024 spin_unlock_irqrestore(&dev->event_lock, flags);
8027 inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
8029 /* Ensure that the work item is consistent when activating it ... */
8031 atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
8032 /* and that it is marked active as soon as the irq could fire. */
8036 static int intel_gen2_queue_flip(struct drm_device *dev,
8037 struct drm_crtc *crtc,
8038 struct drm_framebuffer *fb,
8039 struct drm_i915_gem_object *obj,
8042 struct drm_i915_private *dev_priv = dev->dev_private;
8043 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8045 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8048 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8052 ret = intel_ring_begin(ring, 6);
8056 /* Can't queue multiple flips, so wait for the previous
8057 * one to finish before executing the next.
8059 if (intel_crtc->plane)
8060 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
8062 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
8063 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
8064 intel_ring_emit(ring, MI_NOOP);
8065 intel_ring_emit(ring, MI_DISPLAY_FLIP |
8066 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8067 intel_ring_emit(ring, fb->pitches[0]);
8068 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8069 intel_ring_emit(ring, 0); /* aux display base address, unused */
8071 intel_mark_page_flip_active(intel_crtc);
8072 __intel_ring_advance(ring);
8076 intel_unpin_fb_obj(obj);
8081 static int intel_gen3_queue_flip(struct drm_device *dev,
8082 struct drm_crtc *crtc,
8083 struct drm_framebuffer *fb,
8084 struct drm_i915_gem_object *obj,
8087 struct drm_i915_private *dev_priv = dev->dev_private;
8088 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8090 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8093 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8097 ret = intel_ring_begin(ring, 6);
8101 if (intel_crtc->plane)
8102 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
8104 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
8105 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
8106 intel_ring_emit(ring, MI_NOOP);
8107 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
8108 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8109 intel_ring_emit(ring, fb->pitches[0]);
8110 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8111 intel_ring_emit(ring, MI_NOOP);
8113 intel_mark_page_flip_active(intel_crtc);
8114 __intel_ring_advance(ring);
8118 intel_unpin_fb_obj(obj);
8123 static int intel_gen4_queue_flip(struct drm_device *dev,
8124 struct drm_crtc *crtc,
8125 struct drm_framebuffer *fb,
8126 struct drm_i915_gem_object *obj,
8129 struct drm_i915_private *dev_priv = dev->dev_private;
8130 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8131 uint32_t pf, pipesrc;
8132 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8135 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8139 ret = intel_ring_begin(ring, 4);
8143 /* i965+ uses the linear or tiled offsets from the
8144 * Display Registers (which do not change across a page-flip)
8145 * so we need only reprogram the base address.
8147 intel_ring_emit(ring, MI_DISPLAY_FLIP |
8148 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8149 intel_ring_emit(ring, fb->pitches[0]);
8150 intel_ring_emit(ring,
8151 (i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset) |
8154 /* XXX Enabling the panel-fitter across page-flip is so far
8155 * untested on non-native modes, so ignore it for now.
8156 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
8159 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
8160 intel_ring_emit(ring, pf | pipesrc);
8162 intel_mark_page_flip_active(intel_crtc);
8163 __intel_ring_advance(ring);
8167 intel_unpin_fb_obj(obj);
8172 static int intel_gen6_queue_flip(struct drm_device *dev,
8173 struct drm_crtc *crtc,
8174 struct drm_framebuffer *fb,
8175 struct drm_i915_gem_object *obj,
8178 struct drm_i915_private *dev_priv = dev->dev_private;
8179 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8180 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8181 uint32_t pf, pipesrc;
8184 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8188 ret = intel_ring_begin(ring, 4);
8192 intel_ring_emit(ring, MI_DISPLAY_FLIP |
8193 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8194 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
8195 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8197 /* Contrary to the suggestions in the documentation,
8198 * "Enable Panel Fitter" does not seem to be required when page
8199 * flipping with a non-native mode, and worse causes a normal
8201 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
8204 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
8205 intel_ring_emit(ring, pf | pipesrc);
8207 intel_mark_page_flip_active(intel_crtc);
8208 __intel_ring_advance(ring);
8212 intel_unpin_fb_obj(obj);
8217 static int intel_gen7_queue_flip(struct drm_device *dev,
8218 struct drm_crtc *crtc,
8219 struct drm_framebuffer *fb,
8220 struct drm_i915_gem_object *obj,
8223 struct drm_i915_private *dev_priv = dev->dev_private;
8224 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8225 struct intel_ring_buffer *ring;
8226 uint32_t plane_bit = 0;
8230 if (IS_VALLEYVIEW(dev) || ring == NULL || ring->id != RCS)
8231 ring = &dev_priv->ring[BCS];
8233 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8237 switch(intel_crtc->plane) {
8239 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
8242 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
8245 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
8248 WARN_ONCE(1, "unknown plane in flip command\n");
8254 if (ring->id == RCS)
8257 ret = intel_ring_begin(ring, len);
8261 /* Unmask the flip-done completion message. Note that the bspec says that
8262 * we should do this for both the BCS and RCS, and that we must not unmask
8263 * more than one flip event at any time (or ensure that one flip message
8264 * can be sent by waiting for flip-done prior to queueing new flips).
8265 * Experimentation says that BCS works despite DERRMR masking all
8266 * flip-done completion events and that unmasking all planes at once
8267 * for the RCS also doesn't appear to drop events. Setting the DERRMR
8268 * to zero does lead to lockups within MI_DISPLAY_FLIP.
8270 if (ring->id == RCS) {
8271 intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
8272 intel_ring_emit(ring, DERRMR);
8273 intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE |
8274 DERRMR_PIPEB_PRI_FLIP_DONE |
8275 DERRMR_PIPEC_PRI_FLIP_DONE));
8276 intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1));
8277 intel_ring_emit(ring, DERRMR);
8278 intel_ring_emit(ring, ring->scratch.gtt_offset + 256);
8281 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
8282 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
8283 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8284 intel_ring_emit(ring, (MI_NOOP));
8286 intel_mark_page_flip_active(intel_crtc);
8287 __intel_ring_advance(ring);
8291 intel_unpin_fb_obj(obj);
8296 static int intel_default_queue_flip(struct drm_device *dev,
8297 struct drm_crtc *crtc,
8298 struct drm_framebuffer *fb,
8299 struct drm_i915_gem_object *obj,
8305 static int intel_crtc_page_flip(struct drm_crtc *crtc,
8306 struct drm_framebuffer *fb,
8307 struct drm_pending_vblank_event *event,
8308 uint32_t page_flip_flags)
8310 struct drm_device *dev = crtc->dev;
8311 struct drm_i915_private *dev_priv = dev->dev_private;
8312 struct drm_framebuffer *old_fb = crtc->fb;
8313 struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
8314 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8315 struct intel_unpin_work *work;
8316 unsigned long flags;
8319 /* Can't change pixel format via MI display flips. */
8320 if (fb->pixel_format != crtc->fb->pixel_format)
8324 * TILEOFF/LINOFF registers can't be changed via MI display flips.
8325 * Note that pitch changes could also affect these register.
8327 if (INTEL_INFO(dev)->gen > 3 &&
8328 (fb->offsets[0] != crtc->fb->offsets[0] ||
8329 fb->pitches[0] != crtc->fb->pitches[0]))
8332 work = kzalloc(sizeof(*work), GFP_KERNEL);
8336 work->event = event;
8338 work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
8339 INIT_WORK(&work->work, intel_unpin_work_fn);
8341 ret = drm_vblank_get(dev, intel_crtc->pipe);
8345 /* We borrow the event spin lock for protecting unpin_work */
8346 spin_lock_irqsave(&dev->event_lock, flags);
8347 if (intel_crtc->unpin_work) {
8348 spin_unlock_irqrestore(&dev->event_lock, flags);
8350 drm_vblank_put(dev, intel_crtc->pipe);
8352 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
8355 intel_crtc->unpin_work = work;
8356 spin_unlock_irqrestore(&dev->event_lock, flags);
8358 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
8359 flush_workqueue(dev_priv->wq);
8361 ret = i915_mutex_lock_interruptible(dev);
8365 /* Reference the objects for the scheduled work. */
8366 drm_gem_object_reference(&work->old_fb_obj->base);
8367 drm_gem_object_reference(&obj->base);
8371 work->pending_flip_obj = obj;
8373 work->enable_stall_check = true;
8375 atomic_inc(&intel_crtc->unpin_work_count);
8376 intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
8378 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, page_flip_flags);
8380 goto cleanup_pending;
8382 intel_disable_fbc(dev);
8383 intel_mark_fb_busy(obj, NULL);
8384 mutex_unlock(&dev->struct_mutex);
8386 trace_i915_flip_request(intel_crtc->plane, obj);
8391 atomic_dec(&intel_crtc->unpin_work_count);
8393 drm_gem_object_unreference(&work->old_fb_obj->base);
8394 drm_gem_object_unreference(&obj->base);
8395 mutex_unlock(&dev->struct_mutex);
8398 spin_lock_irqsave(&dev->event_lock, flags);
8399 intel_crtc->unpin_work = NULL;
8400 spin_unlock_irqrestore(&dev->event_lock, flags);
8402 drm_vblank_put(dev, intel_crtc->pipe);
8409 static struct drm_crtc_helper_funcs intel_helper_funcs = {
8410 .mode_set_base_atomic = intel_pipe_set_base_atomic,
8411 .load_lut = intel_crtc_load_lut,
8414 static bool intel_encoder_crtc_ok(struct drm_encoder *encoder,
8415 struct drm_crtc *crtc)
8417 struct drm_device *dev;
8418 struct drm_crtc *tmp;
8421 WARN(!crtc, "checking null crtc?\n");
8425 list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
8431 if (encoder->possible_crtcs & crtc_mask)
8437 * intel_modeset_update_staged_output_state
8439 * Updates the staged output configuration state, e.g. after we've read out the
8442 static void intel_modeset_update_staged_output_state(struct drm_device *dev)
8444 struct intel_encoder *encoder;
8445 struct intel_connector *connector;
8447 list_for_each_entry(connector, &dev->mode_config.connector_list,
8449 connector->new_encoder =
8450 to_intel_encoder(connector->base.encoder);
8453 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8456 to_intel_crtc(encoder->base.crtc);
8461 * intel_modeset_commit_output_state
8463 * This function copies the stage display pipe configuration to the real one.
8465 static void intel_modeset_commit_output_state(struct drm_device *dev)
8467 struct intel_encoder *encoder;
8468 struct intel_connector *connector;
8470 list_for_each_entry(connector, &dev->mode_config.connector_list,
8472 connector->base.encoder = &connector->new_encoder->base;
8475 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8477 encoder->base.crtc = &encoder->new_crtc->base;
8482 connected_sink_compute_bpp(struct intel_connector * connector,
8483 struct intel_crtc_config *pipe_config)
8485 int bpp = pipe_config->pipe_bpp;
8487 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
8488 connector->base.base.id,
8489 drm_get_connector_name(&connector->base));
8491 /* Don't use an invalid EDID bpc value */
8492 if (connector->base.display_info.bpc &&
8493 connector->base.display_info.bpc * 3 < bpp) {
8494 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
8495 bpp, connector->base.display_info.bpc*3);
8496 pipe_config->pipe_bpp = connector->base.display_info.bpc*3;
8499 /* Clamp bpp to 8 on screens without EDID 1.4 */
8500 if (connector->base.display_info.bpc == 0 && bpp > 24) {
8501 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
8503 pipe_config->pipe_bpp = 24;
8508 compute_baseline_pipe_bpp(struct intel_crtc *crtc,
8509 struct drm_framebuffer *fb,
8510 struct intel_crtc_config *pipe_config)
8512 struct drm_device *dev = crtc->base.dev;
8513 struct intel_connector *connector;
8516 switch (fb->pixel_format) {
8518 bpp = 8*3; /* since we go through a colormap */
8520 case DRM_FORMAT_XRGB1555:
8521 case DRM_FORMAT_ARGB1555:
8522 /* checked in intel_framebuffer_init already */
8523 if (WARN_ON(INTEL_INFO(dev)->gen > 3))
8525 case DRM_FORMAT_RGB565:
8526 bpp = 6*3; /* min is 18bpp */
8528 case DRM_FORMAT_XBGR8888:
8529 case DRM_FORMAT_ABGR8888:
8530 /* checked in intel_framebuffer_init already */
8531 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
8533 case DRM_FORMAT_XRGB8888:
8534 case DRM_FORMAT_ARGB8888:
8537 case DRM_FORMAT_XRGB2101010:
8538 case DRM_FORMAT_ARGB2101010:
8539 case DRM_FORMAT_XBGR2101010:
8540 case DRM_FORMAT_ABGR2101010:
8541 /* checked in intel_framebuffer_init already */
8542 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
8546 /* TODO: gen4+ supports 16 bpc floating point, too. */
8548 DRM_DEBUG_KMS("unsupported depth\n");
8552 pipe_config->pipe_bpp = bpp;
8554 /* Clamp display bpp to EDID value */
8555 list_for_each_entry(connector, &dev->mode_config.connector_list,
8557 if (!connector->new_encoder ||
8558 connector->new_encoder->new_crtc != crtc)
8561 connected_sink_compute_bpp(connector, pipe_config);
8567 static void intel_dump_crtc_timings(const struct drm_display_mode *mode)
8569 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
8570 "type: 0x%x flags: 0x%x\n",
8572 mode->crtc_hdisplay, mode->crtc_hsync_start,
8573 mode->crtc_hsync_end, mode->crtc_htotal,
8574 mode->crtc_vdisplay, mode->crtc_vsync_start,
8575 mode->crtc_vsync_end, mode->crtc_vtotal, mode->type, mode->flags);
8578 static void intel_dump_pipe_config(struct intel_crtc *crtc,
8579 struct intel_crtc_config *pipe_config,
8580 const char *context)
8582 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id,
8583 context, pipe_name(crtc->pipe));
8585 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder));
8586 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
8587 pipe_config->pipe_bpp, pipe_config->dither);
8588 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
8589 pipe_config->has_pch_encoder,
8590 pipe_config->fdi_lanes,
8591 pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n,
8592 pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n,
8593 pipe_config->fdi_m_n.tu);
8594 DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
8595 pipe_config->has_dp_encoder,
8596 pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n,
8597 pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n,
8598 pipe_config->dp_m_n.tu);
8599 DRM_DEBUG_KMS("requested mode:\n");
8600 drm_mode_debug_printmodeline(&pipe_config->requested_mode);
8601 DRM_DEBUG_KMS("adjusted mode:\n");
8602 drm_mode_debug_printmodeline(&pipe_config->adjusted_mode);
8603 intel_dump_crtc_timings(&pipe_config->adjusted_mode);
8604 DRM_DEBUG_KMS("port clock: %d\n", pipe_config->port_clock);
8605 DRM_DEBUG_KMS("pipe src size: %dx%d\n",
8606 pipe_config->pipe_src_w, pipe_config->pipe_src_h);
8607 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
8608 pipe_config->gmch_pfit.control,
8609 pipe_config->gmch_pfit.pgm_ratios,
8610 pipe_config->gmch_pfit.lvds_border_bits);
8611 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
8612 pipe_config->pch_pfit.pos,
8613 pipe_config->pch_pfit.size,
8614 pipe_config->pch_pfit.enabled ? "enabled" : "disabled");
8615 DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled);
8616 DRM_DEBUG_KMS("double wide: %i\n", pipe_config->double_wide);
8619 static bool check_encoder_cloning(struct drm_crtc *crtc)
8621 int num_encoders = 0;
8622 bool uncloneable_encoders = false;
8623 struct intel_encoder *encoder;
8625 list_for_each_entry(encoder, &crtc->dev->mode_config.encoder_list,
8627 if (&encoder->new_crtc->base != crtc)
8631 if (!encoder->cloneable)
8632 uncloneable_encoders = true;
8635 return !(num_encoders > 1 && uncloneable_encoders);
8638 static struct intel_crtc_config *
8639 intel_modeset_pipe_config(struct drm_crtc *crtc,
8640 struct drm_framebuffer *fb,
8641 struct drm_display_mode *mode)
8643 struct drm_device *dev = crtc->dev;
8644 struct intel_encoder *encoder;
8645 struct intel_crtc_config *pipe_config;
8646 int plane_bpp, ret = -EINVAL;
8649 if (!check_encoder_cloning(crtc)) {
8650 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
8651 return ERR_PTR(-EINVAL);
8654 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
8656 return ERR_PTR(-ENOMEM);
8658 drm_mode_copy(&pipe_config->adjusted_mode, mode);
8659 drm_mode_copy(&pipe_config->requested_mode, mode);
8661 pipe_config->cpu_transcoder =
8662 (enum transcoder) to_intel_crtc(crtc)->pipe;
8663 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
8666 * Sanitize sync polarity flags based on requested ones. If neither
8667 * positive or negative polarity is requested, treat this as meaning
8668 * negative polarity.
8670 if (!(pipe_config->adjusted_mode.flags &
8671 (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC)))
8672 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC;
8674 if (!(pipe_config->adjusted_mode.flags &
8675 (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC)))
8676 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC;
8678 /* Compute a starting value for pipe_config->pipe_bpp taking the source
8679 * plane pixel format and any sink constraints into account. Returns the
8680 * source plane bpp so that dithering can be selected on mismatches
8681 * after encoders and crtc also have had their say. */
8682 plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc),
8688 * Determine the real pipe dimensions. Note that stereo modes can
8689 * increase the actual pipe size due to the frame doubling and
8690 * insertion of additional space for blanks between the frame. This
8691 * is stored in the crtc timings. We use the requested mode to do this
8692 * computation to clearly distinguish it from the adjusted mode, which
8693 * can be changed by the connectors in the below retry loop.
8695 drm_mode_set_crtcinfo(&pipe_config->requested_mode, CRTC_STEREO_DOUBLE);
8696 pipe_config->pipe_src_w = pipe_config->requested_mode.crtc_hdisplay;
8697 pipe_config->pipe_src_h = pipe_config->requested_mode.crtc_vdisplay;
8700 /* Ensure the port clock defaults are reset when retrying. */
8701 pipe_config->port_clock = 0;
8702 pipe_config->pixel_multiplier = 1;
8704 /* Fill in default crtc timings, allow encoders to overwrite them. */
8705 drm_mode_set_crtcinfo(&pipe_config->adjusted_mode, CRTC_STEREO_DOUBLE);
8707 /* Pass our mode to the connectors and the CRTC to give them a chance to
8708 * adjust it according to limitations or connector properties, and also
8709 * a chance to reject the mode entirely.
8711 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8714 if (&encoder->new_crtc->base != crtc)
8717 if (!(encoder->compute_config(encoder, pipe_config))) {
8718 DRM_DEBUG_KMS("Encoder config failure\n");
8723 /* Set default port clock if not overwritten by the encoder. Needs to be
8724 * done afterwards in case the encoder adjusts the mode. */
8725 if (!pipe_config->port_clock)
8726 pipe_config->port_clock = pipe_config->adjusted_mode.crtc_clock
8727 * pipe_config->pixel_multiplier;
8729 ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config);
8731 DRM_DEBUG_KMS("CRTC fixup failed\n");
8736 if (WARN(!retry, "loop in pipe configuration computation\n")) {
8741 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
8746 pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
8747 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
8748 plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
8753 return ERR_PTR(ret);
8756 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
8757 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
8759 intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
8760 unsigned *prepare_pipes, unsigned *disable_pipes)
8762 struct intel_crtc *intel_crtc;
8763 struct drm_device *dev = crtc->dev;
8764 struct intel_encoder *encoder;
8765 struct intel_connector *connector;
8766 struct drm_crtc *tmp_crtc;
8768 *disable_pipes = *modeset_pipes = *prepare_pipes = 0;
8770 /* Check which crtcs have changed outputs connected to them, these need
8771 * to be part of the prepare_pipes mask. We don't (yet) support global
8772 * modeset across multiple crtcs, so modeset_pipes will only have one
8773 * bit set at most. */
8774 list_for_each_entry(connector, &dev->mode_config.connector_list,
8776 if (connector->base.encoder == &connector->new_encoder->base)
8779 if (connector->base.encoder) {
8780 tmp_crtc = connector->base.encoder->crtc;
8782 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
8785 if (connector->new_encoder)
8787 1 << connector->new_encoder->new_crtc->pipe;
8790 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8792 if (encoder->base.crtc == &encoder->new_crtc->base)
8795 if (encoder->base.crtc) {
8796 tmp_crtc = encoder->base.crtc;
8798 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
8801 if (encoder->new_crtc)
8802 *prepare_pipes |= 1 << encoder->new_crtc->pipe;
8805 /* Check for any pipes that will be fully disabled ... */
8806 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
8810 /* Don't try to disable disabled crtcs. */
8811 if (!intel_crtc->base.enabled)
8814 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8816 if (encoder->new_crtc == intel_crtc)
8821 *disable_pipes |= 1 << intel_crtc->pipe;
8825 /* set_mode is also used to update properties on life display pipes. */
8826 intel_crtc = to_intel_crtc(crtc);
8828 *prepare_pipes |= 1 << intel_crtc->pipe;
8831 * For simplicity do a full modeset on any pipe where the output routing
8832 * changed. We could be more clever, but that would require us to be
8833 * more careful with calling the relevant encoder->mode_set functions.
8836 *modeset_pipes = *prepare_pipes;
8838 /* ... and mask these out. */
8839 *modeset_pipes &= ~(*disable_pipes);
8840 *prepare_pipes &= ~(*disable_pipes);
8843 * HACK: We don't (yet) fully support global modesets. intel_set_config
8844 * obies this rule, but the modeset restore mode of
8845 * intel_modeset_setup_hw_state does not.
8847 *modeset_pipes &= 1 << intel_crtc->pipe;
8848 *prepare_pipes &= 1 << intel_crtc->pipe;
8850 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
8851 *modeset_pipes, *prepare_pipes, *disable_pipes);
8854 static bool intel_crtc_in_use(struct drm_crtc *crtc)
8856 struct drm_encoder *encoder;
8857 struct drm_device *dev = crtc->dev;
8859 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
8860 if (encoder->crtc == crtc)
8867 intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
8869 struct intel_encoder *intel_encoder;
8870 struct intel_crtc *intel_crtc;
8871 struct drm_connector *connector;
8873 list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
8875 if (!intel_encoder->base.crtc)
8878 intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
8880 if (prepare_pipes & (1 << intel_crtc->pipe))
8881 intel_encoder->connectors_active = false;
8884 intel_modeset_commit_output_state(dev);
8886 /* Update computed state. */
8887 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
8889 intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base);
8892 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
8893 if (!connector->encoder || !connector->encoder->crtc)
8896 intel_crtc = to_intel_crtc(connector->encoder->crtc);
8898 if (prepare_pipes & (1 << intel_crtc->pipe)) {
8899 struct drm_property *dpms_property =
8900 dev->mode_config.dpms_property;
8902 connector->dpms = DRM_MODE_DPMS_ON;
8903 drm_object_property_set_value(&connector->base,
8907 intel_encoder = to_intel_encoder(connector->encoder);
8908 intel_encoder->connectors_active = true;
8914 static bool intel_fuzzy_clock_check(int clock1, int clock2)
8918 if (clock1 == clock2)
8921 if (!clock1 || !clock2)
8924 diff = abs(clock1 - clock2);
8926 if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105)
8932 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
8933 list_for_each_entry((intel_crtc), \
8934 &(dev)->mode_config.crtc_list, \
8936 if (mask & (1 <<(intel_crtc)->pipe))
8939 intel_pipe_config_compare(struct drm_device *dev,
8940 struct intel_crtc_config *current_config,
8941 struct intel_crtc_config *pipe_config)
8943 #define PIPE_CONF_CHECK_X(name) \
8944 if (current_config->name != pipe_config->name) { \
8945 DRM_ERROR("mismatch in " #name " " \
8946 "(expected 0x%08x, found 0x%08x)\n", \
8947 current_config->name, \
8948 pipe_config->name); \
8952 #define PIPE_CONF_CHECK_I(name) \
8953 if (current_config->name != pipe_config->name) { \
8954 DRM_ERROR("mismatch in " #name " " \
8955 "(expected %i, found %i)\n", \
8956 current_config->name, \
8957 pipe_config->name); \
8961 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
8962 if ((current_config->name ^ pipe_config->name) & (mask)) { \
8963 DRM_ERROR("mismatch in " #name "(" #mask ") " \
8964 "(expected %i, found %i)\n", \
8965 current_config->name & (mask), \
8966 pipe_config->name & (mask)); \
8970 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
8971 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
8972 DRM_ERROR("mismatch in " #name " " \
8973 "(expected %i, found %i)\n", \
8974 current_config->name, \
8975 pipe_config->name); \
8979 #define PIPE_CONF_QUIRK(quirk) \
8980 ((current_config->quirks | pipe_config->quirks) & (quirk))
8982 PIPE_CONF_CHECK_I(cpu_transcoder);
8984 PIPE_CONF_CHECK_I(has_pch_encoder);
8985 PIPE_CONF_CHECK_I(fdi_lanes);
8986 PIPE_CONF_CHECK_I(fdi_m_n.gmch_m);
8987 PIPE_CONF_CHECK_I(fdi_m_n.gmch_n);
8988 PIPE_CONF_CHECK_I(fdi_m_n.link_m);
8989 PIPE_CONF_CHECK_I(fdi_m_n.link_n);
8990 PIPE_CONF_CHECK_I(fdi_m_n.tu);
8992 PIPE_CONF_CHECK_I(has_dp_encoder);
8993 PIPE_CONF_CHECK_I(dp_m_n.gmch_m);
8994 PIPE_CONF_CHECK_I(dp_m_n.gmch_n);
8995 PIPE_CONF_CHECK_I(dp_m_n.link_m);
8996 PIPE_CONF_CHECK_I(dp_m_n.link_n);
8997 PIPE_CONF_CHECK_I(dp_m_n.tu);
8999 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay);
9000 PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal);
9001 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start);
9002 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end);
9003 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start);
9004 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end);
9006 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay);
9007 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal);
9008 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start);
9009 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end);
9010 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start);
9011 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end);
9013 PIPE_CONF_CHECK_I(pixel_multiplier);
9015 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9016 DRM_MODE_FLAG_INTERLACE);
9018 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) {
9019 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9020 DRM_MODE_FLAG_PHSYNC);
9021 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9022 DRM_MODE_FLAG_NHSYNC);
9023 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9024 DRM_MODE_FLAG_PVSYNC);
9025 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9026 DRM_MODE_FLAG_NVSYNC);
9029 PIPE_CONF_CHECK_I(pipe_src_w);
9030 PIPE_CONF_CHECK_I(pipe_src_h);
9032 PIPE_CONF_CHECK_I(gmch_pfit.control);
9033 /* pfit ratios are autocomputed by the hw on gen4+ */
9034 if (INTEL_INFO(dev)->gen < 4)
9035 PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios);
9036 PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits);
9037 PIPE_CONF_CHECK_I(pch_pfit.enabled);
9038 if (current_config->pch_pfit.enabled) {
9039 PIPE_CONF_CHECK_I(pch_pfit.pos);
9040 PIPE_CONF_CHECK_I(pch_pfit.size);
9043 PIPE_CONF_CHECK_I(ips_enabled);
9045 PIPE_CONF_CHECK_I(double_wide);
9047 PIPE_CONF_CHECK_I(shared_dpll);
9048 PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
9049 PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
9050 PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
9051 PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
9053 if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5)
9054 PIPE_CONF_CHECK_I(pipe_bpp);
9056 if (!IS_HASWELL(dev)) {
9057 PIPE_CONF_CHECK_CLOCK_FUZZY(adjusted_mode.crtc_clock);
9058 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock);
9061 #undef PIPE_CONF_CHECK_X
9062 #undef PIPE_CONF_CHECK_I
9063 #undef PIPE_CONF_CHECK_FLAGS
9064 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
9065 #undef PIPE_CONF_QUIRK
9071 check_connector_state(struct drm_device *dev)
9073 struct intel_connector *connector;
9075 list_for_each_entry(connector, &dev->mode_config.connector_list,
9077 /* This also checks the encoder/connector hw state with the
9078 * ->get_hw_state callbacks. */
9079 intel_connector_check_state(connector);
9081 WARN(&connector->new_encoder->base != connector->base.encoder,
9082 "connector's staged encoder doesn't match current encoder\n");
9087 check_encoder_state(struct drm_device *dev)
9089 struct intel_encoder *encoder;
9090 struct intel_connector *connector;
9092 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9094 bool enabled = false;
9095 bool active = false;
9096 enum pipe pipe, tracked_pipe;
9098 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
9099 encoder->base.base.id,
9100 drm_get_encoder_name(&encoder->base));
9102 WARN(&encoder->new_crtc->base != encoder->base.crtc,
9103 "encoder's stage crtc doesn't match current crtc\n");
9104 WARN(encoder->connectors_active && !encoder->base.crtc,
9105 "encoder's active_connectors set, but no crtc\n");
9107 list_for_each_entry(connector, &dev->mode_config.connector_list,
9109 if (connector->base.encoder != &encoder->base)
9112 if (connector->base.dpms != DRM_MODE_DPMS_OFF)
9115 WARN(!!encoder->base.crtc != enabled,
9116 "encoder's enabled state mismatch "
9117 "(expected %i, found %i)\n",
9118 !!encoder->base.crtc, enabled);
9119 WARN(active && !encoder->base.crtc,
9120 "active encoder with no crtc\n");
9122 WARN(encoder->connectors_active != active,
9123 "encoder's computed active state doesn't match tracked active state "
9124 "(expected %i, found %i)\n", active, encoder->connectors_active);
9126 active = encoder->get_hw_state(encoder, &pipe);
9127 WARN(active != encoder->connectors_active,
9128 "encoder's hw state doesn't match sw tracking "
9129 "(expected %i, found %i)\n",
9130 encoder->connectors_active, active);
9132 if (!encoder->base.crtc)
9135 tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
9136 WARN(active && pipe != tracked_pipe,
9137 "active encoder's pipe doesn't match"
9138 "(expected %i, found %i)\n",
9139 tracked_pipe, pipe);
9145 check_crtc_state(struct drm_device *dev)
9147 drm_i915_private_t *dev_priv = dev->dev_private;
9148 struct intel_crtc *crtc;
9149 struct intel_encoder *encoder;
9150 struct intel_crtc_config pipe_config;
9152 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9154 bool enabled = false;
9155 bool active = false;
9157 memset(&pipe_config, 0, sizeof(pipe_config));
9159 DRM_DEBUG_KMS("[CRTC:%d]\n",
9160 crtc->base.base.id);
9162 WARN(crtc->active && !crtc->base.enabled,
9163 "active crtc, but not enabled in sw tracking\n");
9165 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9167 if (encoder->base.crtc != &crtc->base)
9170 if (encoder->connectors_active)
9174 WARN(active != crtc->active,
9175 "crtc's computed active state doesn't match tracked active state "
9176 "(expected %i, found %i)\n", active, crtc->active);
9177 WARN(enabled != crtc->base.enabled,
9178 "crtc's computed enabled state doesn't match tracked enabled state "
9179 "(expected %i, found %i)\n", enabled, crtc->base.enabled);
9181 active = dev_priv->display.get_pipe_config(crtc,
9184 /* hw state is inconsistent with the pipe A quirk */
9185 if (crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
9186 active = crtc->active;
9188 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9191 if (encoder->base.crtc != &crtc->base)
9193 if (encoder->get_config &&
9194 encoder->get_hw_state(encoder, &pipe))
9195 encoder->get_config(encoder, &pipe_config);
9198 WARN(crtc->active != active,
9199 "crtc active state doesn't match with hw state "
9200 "(expected %i, found %i)\n", crtc->active, active);
9203 !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) {
9204 WARN(1, "pipe state doesn't match!\n");
9205 intel_dump_pipe_config(crtc, &pipe_config,
9207 intel_dump_pipe_config(crtc, &crtc->config,
9214 check_shared_dpll_state(struct drm_device *dev)
9216 drm_i915_private_t *dev_priv = dev->dev_private;
9217 struct intel_crtc *crtc;
9218 struct intel_dpll_hw_state dpll_hw_state;
9221 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
9222 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
9223 int enabled_crtcs = 0, active_crtcs = 0;
9226 memset(&dpll_hw_state, 0, sizeof(dpll_hw_state));
9228 DRM_DEBUG_KMS("%s\n", pll->name);
9230 active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state);
9232 WARN(pll->active > pll->refcount,
9233 "more active pll users than references: %i vs %i\n",
9234 pll->active, pll->refcount);
9235 WARN(pll->active && !pll->on,
9236 "pll in active use but not on in sw tracking\n");
9237 WARN(pll->on && !pll->active,
9238 "pll in on but not on in use in sw tracking\n");
9239 WARN(pll->on != active,
9240 "pll on state mismatch (expected %i, found %i)\n",
9243 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9245 if (crtc->base.enabled && intel_crtc_to_shared_dpll(crtc) == pll)
9247 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
9250 WARN(pll->active != active_crtcs,
9251 "pll active crtcs mismatch (expected %i, found %i)\n",
9252 pll->active, active_crtcs);
9253 WARN(pll->refcount != enabled_crtcs,
9254 "pll enabled crtcs mismatch (expected %i, found %i)\n",
9255 pll->refcount, enabled_crtcs);
9257 WARN(pll->on && memcmp(&pll->hw_state, &dpll_hw_state,
9258 sizeof(dpll_hw_state)),
9259 "pll hw state mismatch\n");
9264 intel_modeset_check_state(struct drm_device *dev)
9266 check_connector_state(dev);
9267 check_encoder_state(dev);
9268 check_crtc_state(dev);
9269 check_shared_dpll_state(dev);
9272 void ironlake_check_encoder_dotclock(const struct intel_crtc_config *pipe_config,
9276 * FDI already provided one idea for the dotclock.
9277 * Yell if the encoder disagrees.
9279 WARN(!intel_fuzzy_clock_check(pipe_config->adjusted_mode.crtc_clock, dotclock),
9280 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
9281 pipe_config->adjusted_mode.crtc_clock, dotclock);
9284 static int __intel_set_mode(struct drm_crtc *crtc,
9285 struct drm_display_mode *mode,
9286 int x, int y, struct drm_framebuffer *fb)
9288 struct drm_device *dev = crtc->dev;
9289 drm_i915_private_t *dev_priv = dev->dev_private;
9290 struct drm_display_mode *saved_mode, *saved_hwmode;
9291 struct intel_crtc_config *pipe_config = NULL;
9292 struct intel_crtc *intel_crtc;
9293 unsigned disable_pipes, prepare_pipes, modeset_pipes;
9296 saved_mode = kcalloc(2, sizeof(*saved_mode), GFP_KERNEL);
9299 saved_hwmode = saved_mode + 1;
9301 intel_modeset_affected_pipes(crtc, &modeset_pipes,
9302 &prepare_pipes, &disable_pipes);
9304 *saved_hwmode = crtc->hwmode;
9305 *saved_mode = crtc->mode;
9307 /* Hack: Because we don't (yet) support global modeset on multiple
9308 * crtcs, we don't keep track of the new mode for more than one crtc.
9309 * Hence simply check whether any bit is set in modeset_pipes in all the
9310 * pieces of code that are not yet converted to deal with mutliple crtcs
9311 * changing their mode at the same time. */
9312 if (modeset_pipes) {
9313 pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
9314 if (IS_ERR(pipe_config)) {
9315 ret = PTR_ERR(pipe_config);
9320 intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config,
9324 for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
9325 intel_crtc_disable(&intel_crtc->base);
9327 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
9328 if (intel_crtc->base.enabled)
9329 dev_priv->display.crtc_disable(&intel_crtc->base);
9332 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
9333 * to set it here already despite that we pass it down the callchain.
9335 if (modeset_pipes) {
9337 /* mode_set/enable/disable functions rely on a correct pipe
9339 to_intel_crtc(crtc)->config = *pipe_config;
9342 /* Only after disabling all output pipelines that will be changed can we
9343 * update the the output configuration. */
9344 intel_modeset_update_state(dev, prepare_pipes);
9346 if (dev_priv->display.modeset_global_resources)
9347 dev_priv->display.modeset_global_resources(dev);
9349 /* Set up the DPLL and any encoders state that needs to adjust or depend
9352 for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
9353 ret = intel_crtc_mode_set(&intel_crtc->base,
9359 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
9360 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
9361 dev_priv->display.crtc_enable(&intel_crtc->base);
9363 if (modeset_pipes) {
9364 /* Store real post-adjustment hardware mode. */
9365 crtc->hwmode = pipe_config->adjusted_mode;
9367 /* Calculate and store various constants which
9368 * are later needed by vblank and swap-completion
9369 * timestamping. They are derived from true hwmode.
9371 drm_calc_timestamping_constants(crtc);
9374 /* FIXME: add subpixel order */
9376 if (ret && crtc->enabled) {
9377 crtc->hwmode = *saved_hwmode;
9378 crtc->mode = *saved_mode;
9387 static int intel_set_mode(struct drm_crtc *crtc,
9388 struct drm_display_mode *mode,
9389 int x, int y, struct drm_framebuffer *fb)
9393 ret = __intel_set_mode(crtc, mode, x, y, fb);
9396 intel_modeset_check_state(crtc->dev);
9401 void intel_crtc_restore_mode(struct drm_crtc *crtc)
9403 intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb);
9406 #undef for_each_intel_crtc_masked
9408 static void intel_set_config_free(struct intel_set_config *config)
9413 kfree(config->save_connector_encoders);
9414 kfree(config->save_encoder_crtcs);
9418 static int intel_set_config_save_state(struct drm_device *dev,
9419 struct intel_set_config *config)
9421 struct drm_encoder *encoder;
9422 struct drm_connector *connector;
9425 config->save_encoder_crtcs =
9426 kcalloc(dev->mode_config.num_encoder,
9427 sizeof(struct drm_crtc *), GFP_KERNEL);
9428 if (!config->save_encoder_crtcs)
9431 config->save_connector_encoders =
9432 kcalloc(dev->mode_config.num_connector,
9433 sizeof(struct drm_encoder *), GFP_KERNEL);
9434 if (!config->save_connector_encoders)
9437 /* Copy data. Note that driver private data is not affected.
9438 * Should anything bad happen only the expected state is
9439 * restored, not the drivers personal bookkeeping.
9442 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
9443 config->save_encoder_crtcs[count++] = encoder->crtc;
9447 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
9448 config->save_connector_encoders[count++] = connector->encoder;
9454 static void intel_set_config_restore_state(struct drm_device *dev,
9455 struct intel_set_config *config)
9457 struct intel_encoder *encoder;
9458 struct intel_connector *connector;
9462 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
9464 to_intel_crtc(config->save_encoder_crtcs[count++]);
9468 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
9469 connector->new_encoder =
9470 to_intel_encoder(config->save_connector_encoders[count++]);
9475 is_crtc_connector_off(struct drm_mode_set *set)
9479 if (set->num_connectors == 0)
9482 if (WARN_ON(set->connectors == NULL))
9485 for (i = 0; i < set->num_connectors; i++)
9486 if (set->connectors[i]->encoder &&
9487 set->connectors[i]->encoder->crtc == set->crtc &&
9488 set->connectors[i]->dpms != DRM_MODE_DPMS_ON)
9495 intel_set_config_compute_mode_changes(struct drm_mode_set *set,
9496 struct intel_set_config *config)
9499 /* We should be able to check here if the fb has the same properties
9500 * and then just flip_or_move it */
9501 if (is_crtc_connector_off(set)) {
9502 config->mode_changed = true;
9503 } else if (set->crtc->fb != set->fb) {
9504 /* If we have no fb then treat it as a full mode set */
9505 if (set->crtc->fb == NULL) {
9506 struct intel_crtc *intel_crtc =
9507 to_intel_crtc(set->crtc);
9509 if (intel_crtc->active && i915_fastboot) {
9510 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
9511 config->fb_changed = true;
9513 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
9514 config->mode_changed = true;
9516 } else if (set->fb == NULL) {
9517 config->mode_changed = true;
9518 } else if (set->fb->pixel_format !=
9519 set->crtc->fb->pixel_format) {
9520 config->mode_changed = true;
9522 config->fb_changed = true;
9526 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
9527 config->fb_changed = true;
9529 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
9530 DRM_DEBUG_KMS("modes are different, full mode set\n");
9531 drm_mode_debug_printmodeline(&set->crtc->mode);
9532 drm_mode_debug_printmodeline(set->mode);
9533 config->mode_changed = true;
9536 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
9537 set->crtc->base.id, config->mode_changed, config->fb_changed);
9541 intel_modeset_stage_output_state(struct drm_device *dev,
9542 struct drm_mode_set *set,
9543 struct intel_set_config *config)
9545 struct drm_crtc *new_crtc;
9546 struct intel_connector *connector;
9547 struct intel_encoder *encoder;
9550 /* The upper layers ensure that we either disable a crtc or have a list
9551 * of connectors. For paranoia, double-check this. */
9552 WARN_ON(!set->fb && (set->num_connectors != 0));
9553 WARN_ON(set->fb && (set->num_connectors == 0));
9555 list_for_each_entry(connector, &dev->mode_config.connector_list,
9557 /* Otherwise traverse passed in connector list and get encoders
9559 for (ro = 0; ro < set->num_connectors; ro++) {
9560 if (set->connectors[ro] == &connector->base) {
9561 connector->new_encoder = connector->encoder;
9566 /* If we disable the crtc, disable all its connectors. Also, if
9567 * the connector is on the changing crtc but not on the new
9568 * connector list, disable it. */
9569 if ((!set->fb || ro == set->num_connectors) &&
9570 connector->base.encoder &&
9571 connector->base.encoder->crtc == set->crtc) {
9572 connector->new_encoder = NULL;
9574 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
9575 connector->base.base.id,
9576 drm_get_connector_name(&connector->base));
9580 if (&connector->new_encoder->base != connector->base.encoder) {
9581 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
9582 config->mode_changed = true;
9585 /* connector->new_encoder is now updated for all connectors. */
9587 /* Update crtc of enabled connectors. */
9588 list_for_each_entry(connector, &dev->mode_config.connector_list,
9590 if (!connector->new_encoder)
9593 new_crtc = connector->new_encoder->base.crtc;
9595 for (ro = 0; ro < set->num_connectors; ro++) {
9596 if (set->connectors[ro] == &connector->base)
9597 new_crtc = set->crtc;
9600 /* Make sure the new CRTC will work with the encoder */
9601 if (!intel_encoder_crtc_ok(&connector->new_encoder->base,
9605 connector->encoder->new_crtc = to_intel_crtc(new_crtc);
9607 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
9608 connector->base.base.id,
9609 drm_get_connector_name(&connector->base),
9613 /* Check for any encoders that needs to be disabled. */
9614 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9616 list_for_each_entry(connector,
9617 &dev->mode_config.connector_list,
9619 if (connector->new_encoder == encoder) {
9620 WARN_ON(!connector->new_encoder->new_crtc);
9625 encoder->new_crtc = NULL;
9627 /* Only now check for crtc changes so we don't miss encoders
9628 * that will be disabled. */
9629 if (&encoder->new_crtc->base != encoder->base.crtc) {
9630 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
9631 config->mode_changed = true;
9634 /* Now we've also updated encoder->new_crtc for all encoders. */
9639 static int intel_crtc_set_config(struct drm_mode_set *set)
9641 struct drm_device *dev;
9642 struct drm_mode_set save_set;
9643 struct intel_set_config *config;
9648 BUG_ON(!set->crtc->helper_private);
9650 /* Enforce sane interface api - has been abused by the fb helper. */
9651 BUG_ON(!set->mode && set->fb);
9652 BUG_ON(set->fb && set->num_connectors == 0);
9655 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
9656 set->crtc->base.id, set->fb->base.id,
9657 (int)set->num_connectors, set->x, set->y);
9659 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
9662 dev = set->crtc->dev;
9665 config = kzalloc(sizeof(*config), GFP_KERNEL);
9669 ret = intel_set_config_save_state(dev, config);
9673 save_set.crtc = set->crtc;
9674 save_set.mode = &set->crtc->mode;
9675 save_set.x = set->crtc->x;
9676 save_set.y = set->crtc->y;
9677 save_set.fb = set->crtc->fb;
9679 /* Compute whether we need a full modeset, only an fb base update or no
9680 * change at all. In the future we might also check whether only the
9681 * mode changed, e.g. for LVDS where we only change the panel fitter in
9683 intel_set_config_compute_mode_changes(set, config);
9685 ret = intel_modeset_stage_output_state(dev, set, config);
9689 if (config->mode_changed) {
9690 ret = intel_set_mode(set->crtc, set->mode,
9691 set->x, set->y, set->fb);
9692 } else if (config->fb_changed) {
9693 intel_crtc_wait_for_pending_flips(set->crtc);
9695 ret = intel_pipe_set_base(set->crtc,
9696 set->x, set->y, set->fb);
9700 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
9701 set->crtc->base.id, ret);
9703 intel_set_config_restore_state(dev, config);
9705 /* Try to restore the config */
9706 if (config->mode_changed &&
9707 intel_set_mode(save_set.crtc, save_set.mode,
9708 save_set.x, save_set.y, save_set.fb))
9709 DRM_ERROR("failed to restore config after modeset failure\n");
9713 intel_set_config_free(config);
9717 static const struct drm_crtc_funcs intel_crtc_funcs = {
9718 .cursor_set = intel_crtc_cursor_set,
9719 .cursor_move = intel_crtc_cursor_move,
9720 .gamma_set = intel_crtc_gamma_set,
9721 .set_config = intel_crtc_set_config,
9722 .destroy = intel_crtc_destroy,
9723 .page_flip = intel_crtc_page_flip,
9726 static void intel_cpu_pll_init(struct drm_device *dev)
9729 intel_ddi_pll_init(dev);
9732 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv,
9733 struct intel_shared_dpll *pll,
9734 struct intel_dpll_hw_state *hw_state)
9738 val = I915_READ(PCH_DPLL(pll->id));
9739 hw_state->dpll = val;
9740 hw_state->fp0 = I915_READ(PCH_FP0(pll->id));
9741 hw_state->fp1 = I915_READ(PCH_FP1(pll->id));
9743 return val & DPLL_VCO_ENABLE;
9746 static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv,
9747 struct intel_shared_dpll *pll)
9749 I915_WRITE(PCH_FP0(pll->id), pll->hw_state.fp0);
9750 I915_WRITE(PCH_FP1(pll->id), pll->hw_state.fp1);
9753 static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv,
9754 struct intel_shared_dpll *pll)
9756 /* PCH refclock must be enabled first */
9757 assert_pch_refclk_enabled(dev_priv);
9759 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
9761 /* Wait for the clocks to stabilize. */
9762 POSTING_READ(PCH_DPLL(pll->id));
9765 /* The pixel multiplier can only be updated once the
9766 * DPLL is enabled and the clocks are stable.
9768 * So write it again.
9770 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
9771 POSTING_READ(PCH_DPLL(pll->id));
9775 static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv,
9776 struct intel_shared_dpll *pll)
9778 struct drm_device *dev = dev_priv->dev;
9779 struct intel_crtc *crtc;
9781 /* Make sure no transcoder isn't still depending on us. */
9782 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
9783 if (intel_crtc_to_shared_dpll(crtc) == pll)
9784 assert_pch_transcoder_disabled(dev_priv, crtc->pipe);
9787 I915_WRITE(PCH_DPLL(pll->id), 0);
9788 POSTING_READ(PCH_DPLL(pll->id));
9792 static char *ibx_pch_dpll_names[] = {
9797 static void ibx_pch_dpll_init(struct drm_device *dev)
9799 struct drm_i915_private *dev_priv = dev->dev_private;
9802 dev_priv->num_shared_dpll = 2;
9804 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
9805 dev_priv->shared_dplls[i].id = i;
9806 dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i];
9807 dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set;
9808 dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable;
9809 dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable;
9810 dev_priv->shared_dplls[i].get_hw_state =
9811 ibx_pch_dpll_get_hw_state;
9815 static void intel_shared_dpll_init(struct drm_device *dev)
9817 struct drm_i915_private *dev_priv = dev->dev_private;
9819 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
9820 ibx_pch_dpll_init(dev);
9822 dev_priv->num_shared_dpll = 0;
9824 BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS);
9825 DRM_DEBUG_KMS("%i shared PLLs initialized\n",
9826 dev_priv->num_shared_dpll);
9829 static void intel_crtc_init(struct drm_device *dev, int pipe)
9831 drm_i915_private_t *dev_priv = dev->dev_private;
9832 struct intel_crtc *intel_crtc;
9835 intel_crtc = kzalloc(sizeof(*intel_crtc), GFP_KERNEL);
9836 if (intel_crtc == NULL)
9839 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
9841 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
9842 for (i = 0; i < 256; i++) {
9843 intel_crtc->lut_r[i] = i;
9844 intel_crtc->lut_g[i] = i;
9845 intel_crtc->lut_b[i] = i;
9848 /* Swap pipes & planes for FBC on pre-965 */
9849 intel_crtc->pipe = pipe;
9850 intel_crtc->plane = pipe;
9851 if (IS_MOBILE(dev) && IS_GEN3(dev)) {
9852 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
9853 intel_crtc->plane = !pipe;
9856 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
9857 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
9858 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
9859 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
9861 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
9864 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
9865 struct drm_file *file)
9867 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
9868 struct drm_mode_object *drmmode_obj;
9869 struct intel_crtc *crtc;
9871 if (!drm_core_check_feature(dev, DRIVER_MODESET))
9874 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
9875 DRM_MODE_OBJECT_CRTC);
9878 DRM_ERROR("no such CRTC id\n");
9882 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
9883 pipe_from_crtc_id->pipe = crtc->pipe;
9888 static int intel_encoder_clones(struct intel_encoder *encoder)
9890 struct drm_device *dev = encoder->base.dev;
9891 struct intel_encoder *source_encoder;
9895 list_for_each_entry(source_encoder,
9896 &dev->mode_config.encoder_list, base.head) {
9898 if (encoder == source_encoder)
9899 index_mask |= (1 << entry);
9901 /* Intel hw has only one MUX where enocoders could be cloned. */
9902 if (encoder->cloneable && source_encoder->cloneable)
9903 index_mask |= (1 << entry);
9911 static bool has_edp_a(struct drm_device *dev)
9913 struct drm_i915_private *dev_priv = dev->dev_private;
9915 if (!IS_MOBILE(dev))
9918 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
9922 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
9928 static void intel_setup_outputs(struct drm_device *dev)
9930 struct drm_i915_private *dev_priv = dev->dev_private;
9931 struct intel_encoder *encoder;
9932 bool dpd_is_edp = false;
9934 intel_lvds_init(dev);
9937 intel_crt_init(dev);
9942 /* Haswell uses DDI functions to detect digital outputs */
9943 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
9944 /* DDI A only supports eDP */
9946 intel_ddi_init(dev, PORT_A);
9948 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
9950 found = I915_READ(SFUSE_STRAP);
9952 if (found & SFUSE_STRAP_DDIB_DETECTED)
9953 intel_ddi_init(dev, PORT_B);
9954 if (found & SFUSE_STRAP_DDIC_DETECTED)
9955 intel_ddi_init(dev, PORT_C);
9956 if (found & SFUSE_STRAP_DDID_DETECTED)
9957 intel_ddi_init(dev, PORT_D);
9958 } else if (HAS_PCH_SPLIT(dev)) {
9960 dpd_is_edp = intel_dpd_is_edp(dev);
9963 intel_dp_init(dev, DP_A, PORT_A);
9965 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
9966 /* PCH SDVOB multiplex with HDMIB */
9967 found = intel_sdvo_init(dev, PCH_SDVOB, true);
9969 intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
9970 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
9971 intel_dp_init(dev, PCH_DP_B, PORT_B);
9974 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
9975 intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
9977 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
9978 intel_hdmi_init(dev, PCH_HDMID, PORT_D);
9980 if (I915_READ(PCH_DP_C) & DP_DETECTED)
9981 intel_dp_init(dev, PCH_DP_C, PORT_C);
9983 if (I915_READ(PCH_DP_D) & DP_DETECTED)
9984 intel_dp_init(dev, PCH_DP_D, PORT_D);
9985 } else if (IS_VALLEYVIEW(dev)) {
9986 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
9987 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
9989 if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
9990 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
9993 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED) {
9994 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC,
9996 if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
9997 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C,
10001 intel_dsi_init(dev);
10002 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
10003 bool found = false;
10005 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
10006 DRM_DEBUG_KMS("probing SDVOB\n");
10007 found = intel_sdvo_init(dev, GEN3_SDVOB, true);
10008 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
10009 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
10010 intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
10013 if (!found && SUPPORTS_INTEGRATED_DP(dev))
10014 intel_dp_init(dev, DP_B, PORT_B);
10017 /* Before G4X SDVOC doesn't have its own detect register */
10019 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
10020 DRM_DEBUG_KMS("probing SDVOC\n");
10021 found = intel_sdvo_init(dev, GEN3_SDVOC, false);
10024 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
10026 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
10027 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
10028 intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
10030 if (SUPPORTS_INTEGRATED_DP(dev))
10031 intel_dp_init(dev, DP_C, PORT_C);
10034 if (SUPPORTS_INTEGRATED_DP(dev) &&
10035 (I915_READ(DP_D) & DP_DETECTED))
10036 intel_dp_init(dev, DP_D, PORT_D);
10037 } else if (IS_GEN2(dev))
10038 intel_dvo_init(dev);
10040 if (SUPPORTS_TV(dev))
10041 intel_tv_init(dev);
10043 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
10044 encoder->base.possible_crtcs = encoder->crtc_mask;
10045 encoder->base.possible_clones =
10046 intel_encoder_clones(encoder);
10049 intel_init_pch_refclk(dev);
10051 drm_helper_move_panel_connectors_to_head(dev);
10054 void intel_framebuffer_fini(struct intel_framebuffer *fb)
10056 drm_framebuffer_cleanup(&fb->base);
10057 WARN_ON(!fb->obj->framebuffer_references--);
10058 drm_gem_object_unreference_unlocked(&fb->obj->base);
10061 static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
10063 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
10065 intel_framebuffer_fini(intel_fb);
10069 static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
10070 struct drm_file *file,
10071 unsigned int *handle)
10073 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
10074 struct drm_i915_gem_object *obj = intel_fb->obj;
10076 return drm_gem_handle_create(file, &obj->base, handle);
10079 static const struct drm_framebuffer_funcs intel_fb_funcs = {
10080 .destroy = intel_user_framebuffer_destroy,
10081 .create_handle = intel_user_framebuffer_create_handle,
10084 int intel_framebuffer_init(struct drm_device *dev,
10085 struct intel_framebuffer *intel_fb,
10086 struct drm_mode_fb_cmd2 *mode_cmd,
10087 struct drm_i915_gem_object *obj)
10089 int aligned_height, tile_height;
10093 WARN_ON(!mutex_is_locked(&dev->struct_mutex));
10095 if (obj->tiling_mode == I915_TILING_Y) {
10096 DRM_DEBUG("hardware does not support tiling Y\n");
10100 if (mode_cmd->pitches[0] & 63) {
10101 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
10102 mode_cmd->pitches[0]);
10106 if (INTEL_INFO(dev)->gen >= 5 && !IS_VALLEYVIEW(dev)) {
10107 pitch_limit = 32*1024;
10108 } else if (INTEL_INFO(dev)->gen >= 4) {
10109 if (obj->tiling_mode)
10110 pitch_limit = 16*1024;
10112 pitch_limit = 32*1024;
10113 } else if (INTEL_INFO(dev)->gen >= 3) {
10114 if (obj->tiling_mode)
10115 pitch_limit = 8*1024;
10117 pitch_limit = 16*1024;
10119 /* XXX DSPC is limited to 4k tiled */
10120 pitch_limit = 8*1024;
10122 if (mode_cmd->pitches[0] > pitch_limit) {
10123 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
10124 obj->tiling_mode ? "tiled" : "linear",
10125 mode_cmd->pitches[0], pitch_limit);
10129 if (obj->tiling_mode != I915_TILING_NONE &&
10130 mode_cmd->pitches[0] != obj->stride) {
10131 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
10132 mode_cmd->pitches[0], obj->stride);
10136 /* Reject formats not supported by any plane early. */
10137 switch (mode_cmd->pixel_format) {
10138 case DRM_FORMAT_C8:
10139 case DRM_FORMAT_RGB565:
10140 case DRM_FORMAT_XRGB8888:
10141 case DRM_FORMAT_ARGB8888:
10143 case DRM_FORMAT_XRGB1555:
10144 case DRM_FORMAT_ARGB1555:
10145 if (INTEL_INFO(dev)->gen > 3) {
10146 DRM_DEBUG("unsupported pixel format: %s\n",
10147 drm_get_format_name(mode_cmd->pixel_format));
10151 case DRM_FORMAT_XBGR8888:
10152 case DRM_FORMAT_ABGR8888:
10153 case DRM_FORMAT_XRGB2101010:
10154 case DRM_FORMAT_ARGB2101010:
10155 case DRM_FORMAT_XBGR2101010:
10156 case DRM_FORMAT_ABGR2101010:
10157 if (INTEL_INFO(dev)->gen < 4) {
10158 DRM_DEBUG("unsupported pixel format: %s\n",
10159 drm_get_format_name(mode_cmd->pixel_format));
10163 case DRM_FORMAT_YUYV:
10164 case DRM_FORMAT_UYVY:
10165 case DRM_FORMAT_YVYU:
10166 case DRM_FORMAT_VYUY:
10167 if (INTEL_INFO(dev)->gen < 5) {
10168 DRM_DEBUG("unsupported pixel format: %s\n",
10169 drm_get_format_name(mode_cmd->pixel_format));
10174 DRM_DEBUG("unsupported pixel format: %s\n",
10175 drm_get_format_name(mode_cmd->pixel_format));
10179 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
10180 if (mode_cmd->offsets[0] != 0)
10183 tile_height = IS_GEN2(dev) ? 16 : 8;
10184 aligned_height = ALIGN(mode_cmd->height,
10185 obj->tiling_mode ? tile_height : 1);
10186 /* FIXME drm helper for size checks (especially planar formats)? */
10187 if (obj->base.size < aligned_height * mode_cmd->pitches[0])
10190 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
10191 intel_fb->obj = obj;
10192 intel_fb->obj->framebuffer_references++;
10194 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
10196 DRM_ERROR("framebuffer init failed %d\n", ret);
10203 static struct drm_framebuffer *
10204 intel_user_framebuffer_create(struct drm_device *dev,
10205 struct drm_file *filp,
10206 struct drm_mode_fb_cmd2 *mode_cmd)
10208 struct drm_i915_gem_object *obj;
10210 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
10211 mode_cmd->handles[0]));
10212 if (&obj->base == NULL)
10213 return ERR_PTR(-ENOENT);
10215 return intel_framebuffer_create(dev, mode_cmd, obj);
10218 #ifndef CONFIG_DRM_I915_FBDEV
10219 static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
10224 static const struct drm_mode_config_funcs intel_mode_funcs = {
10225 .fb_create = intel_user_framebuffer_create,
10226 .output_poll_changed = intel_fbdev_output_poll_changed,
10229 /* Set up chip specific display functions */
10230 static void intel_init_display(struct drm_device *dev)
10232 struct drm_i915_private *dev_priv = dev->dev_private;
10234 if (HAS_PCH_SPLIT(dev) || IS_G4X(dev))
10235 dev_priv->display.find_dpll = g4x_find_best_dpll;
10236 else if (IS_VALLEYVIEW(dev))
10237 dev_priv->display.find_dpll = vlv_find_best_dpll;
10238 else if (IS_PINEVIEW(dev))
10239 dev_priv->display.find_dpll = pnv_find_best_dpll;
10241 dev_priv->display.find_dpll = i9xx_find_best_dpll;
10243 if (HAS_DDI(dev)) {
10244 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
10245 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
10246 dev_priv->display.crtc_enable = haswell_crtc_enable;
10247 dev_priv->display.crtc_disable = haswell_crtc_disable;
10248 dev_priv->display.off = haswell_crtc_off;
10249 dev_priv->display.update_plane = ironlake_update_plane;
10250 } else if (HAS_PCH_SPLIT(dev)) {
10251 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
10252 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
10253 dev_priv->display.crtc_enable = ironlake_crtc_enable;
10254 dev_priv->display.crtc_disable = ironlake_crtc_disable;
10255 dev_priv->display.off = ironlake_crtc_off;
10256 dev_priv->display.update_plane = ironlake_update_plane;
10257 } else if (IS_VALLEYVIEW(dev)) {
10258 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
10259 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
10260 dev_priv->display.crtc_enable = valleyview_crtc_enable;
10261 dev_priv->display.crtc_disable = i9xx_crtc_disable;
10262 dev_priv->display.off = i9xx_crtc_off;
10263 dev_priv->display.update_plane = i9xx_update_plane;
10265 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
10266 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
10267 dev_priv->display.crtc_enable = i9xx_crtc_enable;
10268 dev_priv->display.crtc_disable = i9xx_crtc_disable;
10269 dev_priv->display.off = i9xx_crtc_off;
10270 dev_priv->display.update_plane = i9xx_update_plane;
10273 /* Returns the core display clock speed */
10274 if (IS_VALLEYVIEW(dev))
10275 dev_priv->display.get_display_clock_speed =
10276 valleyview_get_display_clock_speed;
10277 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
10278 dev_priv->display.get_display_clock_speed =
10279 i945_get_display_clock_speed;
10280 else if (IS_I915G(dev))
10281 dev_priv->display.get_display_clock_speed =
10282 i915_get_display_clock_speed;
10283 else if (IS_I945GM(dev) || IS_845G(dev))
10284 dev_priv->display.get_display_clock_speed =
10285 i9xx_misc_get_display_clock_speed;
10286 else if (IS_PINEVIEW(dev))
10287 dev_priv->display.get_display_clock_speed =
10288 pnv_get_display_clock_speed;
10289 else if (IS_I915GM(dev))
10290 dev_priv->display.get_display_clock_speed =
10291 i915gm_get_display_clock_speed;
10292 else if (IS_I865G(dev))
10293 dev_priv->display.get_display_clock_speed =
10294 i865_get_display_clock_speed;
10295 else if (IS_I85X(dev))
10296 dev_priv->display.get_display_clock_speed =
10297 i855_get_display_clock_speed;
10298 else /* 852, 830 */
10299 dev_priv->display.get_display_clock_speed =
10300 i830_get_display_clock_speed;
10302 if (HAS_PCH_SPLIT(dev)) {
10303 if (IS_GEN5(dev)) {
10304 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
10305 dev_priv->display.write_eld = ironlake_write_eld;
10306 } else if (IS_GEN6(dev)) {
10307 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
10308 dev_priv->display.write_eld = ironlake_write_eld;
10309 } else if (IS_IVYBRIDGE(dev)) {
10310 /* FIXME: detect B0+ stepping and use auto training */
10311 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
10312 dev_priv->display.write_eld = ironlake_write_eld;
10313 dev_priv->display.modeset_global_resources =
10314 ivb_modeset_global_resources;
10315 } else if (IS_HASWELL(dev)) {
10316 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
10317 dev_priv->display.write_eld = haswell_write_eld;
10318 dev_priv->display.modeset_global_resources =
10319 haswell_modeset_global_resources;
10321 } else if (IS_G4X(dev)) {
10322 dev_priv->display.write_eld = g4x_write_eld;
10325 /* Default just returns -ENODEV to indicate unsupported */
10326 dev_priv->display.queue_flip = intel_default_queue_flip;
10328 switch (INTEL_INFO(dev)->gen) {
10330 dev_priv->display.queue_flip = intel_gen2_queue_flip;
10334 dev_priv->display.queue_flip = intel_gen3_queue_flip;
10339 dev_priv->display.queue_flip = intel_gen4_queue_flip;
10343 dev_priv->display.queue_flip = intel_gen6_queue_flip;
10346 dev_priv->display.queue_flip = intel_gen7_queue_flip;
10352 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
10353 * resume, or other times. This quirk makes sure that's the case for
10354 * affected systems.
10356 static void quirk_pipea_force(struct drm_device *dev)
10358 struct drm_i915_private *dev_priv = dev->dev_private;
10360 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
10361 DRM_INFO("applying pipe a force quirk\n");
10365 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
10367 static void quirk_ssc_force_disable(struct drm_device *dev)
10369 struct drm_i915_private *dev_priv = dev->dev_private;
10370 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
10371 DRM_INFO("applying lvds SSC disable quirk\n");
10375 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
10378 static void quirk_invert_brightness(struct drm_device *dev)
10380 struct drm_i915_private *dev_priv = dev->dev_private;
10381 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
10382 DRM_INFO("applying inverted panel brightness quirk\n");
10386 * Some machines (Dell XPS13) suffer broken backlight controls if
10387 * BLM_PCH_PWM_ENABLE is set.
10389 static void quirk_no_pcm_pwm_enable(struct drm_device *dev)
10391 struct drm_i915_private *dev_priv = dev->dev_private;
10392 dev_priv->quirks |= QUIRK_NO_PCH_PWM_ENABLE;
10393 DRM_INFO("applying no-PCH_PWM_ENABLE quirk\n");
10396 struct intel_quirk {
10398 int subsystem_vendor;
10399 int subsystem_device;
10400 void (*hook)(struct drm_device *dev);
10403 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
10404 struct intel_dmi_quirk {
10405 void (*hook)(struct drm_device *dev);
10406 const struct dmi_system_id (*dmi_id_list)[];
10409 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
10411 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
10415 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
10417 .dmi_id_list = &(const struct dmi_system_id[]) {
10419 .callback = intel_dmi_reverse_brightness,
10420 .ident = "NCR Corporation",
10421 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
10422 DMI_MATCH(DMI_PRODUCT_NAME, ""),
10425 { } /* terminating entry */
10427 .hook = quirk_invert_brightness,
10431 static struct intel_quirk intel_quirks[] = {
10432 /* HP Mini needs pipe A force quirk (LP: #322104) */
10433 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
10435 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
10436 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
10438 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
10439 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
10441 /* 830 needs to leave pipe A & dpll A up */
10442 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
10444 /* Lenovo U160 cannot use SSC on LVDS */
10445 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
10447 /* Sony Vaio Y cannot use SSC on LVDS */
10448 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
10451 * All GM45 Acer (and its brands eMachines and Packard Bell) laptops
10452 * seem to use inverted backlight PWM.
10454 { 0x2a42, 0x1025, PCI_ANY_ID, quirk_invert_brightness },
10456 /* Dell XPS13 HD Sandy Bridge */
10457 { 0x0116, 0x1028, 0x052e, quirk_no_pcm_pwm_enable },
10458 /* Dell XPS13 HD and XPS13 FHD Ivy Bridge */
10459 { 0x0166, 0x1028, 0x058b, quirk_no_pcm_pwm_enable },
10462 static void intel_init_quirks(struct drm_device *dev)
10464 struct pci_dev *d = dev->pdev;
10467 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
10468 struct intel_quirk *q = &intel_quirks[i];
10470 if (d->device == q->device &&
10471 (d->subsystem_vendor == q->subsystem_vendor ||
10472 q->subsystem_vendor == PCI_ANY_ID) &&
10473 (d->subsystem_device == q->subsystem_device ||
10474 q->subsystem_device == PCI_ANY_ID))
10477 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
10478 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
10479 intel_dmi_quirks[i].hook(dev);
10483 /* Disable the VGA plane that we never use */
10484 static void i915_disable_vga(struct drm_device *dev)
10486 struct drm_i915_private *dev_priv = dev->dev_private;
10488 u32 vga_reg = i915_vgacntrl_reg(dev);
10490 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
10491 outb(SR01, VGA_SR_INDEX);
10492 sr1 = inb(VGA_SR_DATA);
10493 outb(sr1 | 1<<5, VGA_SR_DATA);
10494 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10497 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
10498 POSTING_READ(vga_reg);
10501 static void i915_enable_vga_mem(struct drm_device *dev)
10503 /* Enable VGA memory on Intel HD */
10504 if (HAS_PCH_SPLIT(dev)) {
10505 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
10506 outb(inb(VGA_MSR_READ) | VGA_MSR_MEM_EN, VGA_MSR_WRITE);
10507 vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO |
10508 VGA_RSRC_LEGACY_MEM |
10509 VGA_RSRC_NORMAL_IO |
10510 VGA_RSRC_NORMAL_MEM);
10511 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10515 void i915_disable_vga_mem(struct drm_device *dev)
10517 /* Disable VGA memory on Intel HD */
10518 if (HAS_PCH_SPLIT(dev)) {
10519 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
10520 outb(inb(VGA_MSR_READ) & ~VGA_MSR_MEM_EN, VGA_MSR_WRITE);
10521 vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO |
10522 VGA_RSRC_NORMAL_IO |
10523 VGA_RSRC_NORMAL_MEM);
10524 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
10528 void intel_modeset_init_hw(struct drm_device *dev)
10530 struct drm_i915_private *dev_priv = dev->dev_private;
10532 intel_prepare_ddi(dev);
10534 intel_init_clock_gating(dev);
10536 /* Enable the CRI clock source so we can get at the display */
10537 if (IS_VALLEYVIEW(dev))
10538 I915_WRITE(DPLL(PIPE_B), I915_READ(DPLL(PIPE_B)) |
10539 DPLL_INTEGRATED_CRI_CLK_VLV);
10541 intel_init_dpio(dev);
10543 mutex_lock(&dev->struct_mutex);
10544 intel_enable_gt_powersave(dev);
10545 mutex_unlock(&dev->struct_mutex);
10548 void intel_modeset_suspend_hw(struct drm_device *dev)
10550 intel_suspend_hw(dev);
10553 void intel_modeset_init(struct drm_device *dev)
10555 struct drm_i915_private *dev_priv = dev->dev_private;
10558 drm_mode_config_init(dev);
10560 dev->mode_config.min_width = 0;
10561 dev->mode_config.min_height = 0;
10563 dev->mode_config.preferred_depth = 24;
10564 dev->mode_config.prefer_shadow = 1;
10566 dev->mode_config.funcs = &intel_mode_funcs;
10568 intel_init_quirks(dev);
10570 intel_init_pm(dev);
10572 if (INTEL_INFO(dev)->num_pipes == 0)
10575 intel_init_display(dev);
10577 if (IS_GEN2(dev)) {
10578 dev->mode_config.max_width = 2048;
10579 dev->mode_config.max_height = 2048;
10580 } else if (IS_GEN3(dev)) {
10581 dev->mode_config.max_width = 4096;
10582 dev->mode_config.max_height = 4096;
10584 dev->mode_config.max_width = 8192;
10585 dev->mode_config.max_height = 8192;
10587 dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
10589 DRM_DEBUG_KMS("%d display pipe%s available.\n",
10590 INTEL_INFO(dev)->num_pipes,
10591 INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
10594 intel_crtc_init(dev, i);
10595 for (j = 0; j < dev_priv->num_plane; j++) {
10596 ret = intel_plane_init(dev, i, j);
10598 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
10599 pipe_name(i), sprite_name(i, j), ret);
10603 intel_cpu_pll_init(dev);
10604 intel_shared_dpll_init(dev);
10606 /* Just disable it once at startup */
10607 i915_disable_vga(dev);
10608 intel_setup_outputs(dev);
10610 /* Just in case the BIOS is doing something questionable. */
10611 intel_disable_fbc(dev);
10615 intel_connector_break_all_links(struct intel_connector *connector)
10617 connector->base.dpms = DRM_MODE_DPMS_OFF;
10618 connector->base.encoder = NULL;
10619 connector->encoder->connectors_active = false;
10620 connector->encoder->base.crtc = NULL;
10623 static void intel_enable_pipe_a(struct drm_device *dev)
10625 struct intel_connector *connector;
10626 struct drm_connector *crt = NULL;
10627 struct intel_load_detect_pipe load_detect_temp;
10629 /* We can't just switch on the pipe A, we need to set things up with a
10630 * proper mode and output configuration. As a gross hack, enable pipe A
10631 * by enabling the load detect pipe once. */
10632 list_for_each_entry(connector,
10633 &dev->mode_config.connector_list,
10635 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
10636 crt = &connector->base;
10644 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
10645 intel_release_load_detect_pipe(crt, &load_detect_temp);
10651 intel_check_plane_mapping(struct intel_crtc *crtc)
10653 struct drm_device *dev = crtc->base.dev;
10654 struct drm_i915_private *dev_priv = dev->dev_private;
10657 if (INTEL_INFO(dev)->num_pipes == 1)
10660 reg = DSPCNTR(!crtc->plane);
10661 val = I915_READ(reg);
10663 if ((val & DISPLAY_PLANE_ENABLE) &&
10664 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
10670 static void intel_sanitize_crtc(struct intel_crtc *crtc)
10672 struct drm_device *dev = crtc->base.dev;
10673 struct drm_i915_private *dev_priv = dev->dev_private;
10676 /* Clear any frame start delays used for debugging left by the BIOS */
10677 reg = PIPECONF(crtc->config.cpu_transcoder);
10678 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
10680 /* We need to sanitize the plane -> pipe mapping first because this will
10681 * disable the crtc (and hence change the state) if it is wrong. Note
10682 * that gen4+ has a fixed plane -> pipe mapping. */
10683 if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
10684 struct intel_connector *connector;
10687 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
10688 crtc->base.base.id);
10690 /* Pipe has the wrong plane attached and the plane is active.
10691 * Temporarily change the plane mapping and disable everything
10693 plane = crtc->plane;
10694 crtc->plane = !plane;
10695 dev_priv->display.crtc_disable(&crtc->base);
10696 crtc->plane = plane;
10698 /* ... and break all links. */
10699 list_for_each_entry(connector, &dev->mode_config.connector_list,
10701 if (connector->encoder->base.crtc != &crtc->base)
10704 intel_connector_break_all_links(connector);
10707 WARN_ON(crtc->active);
10708 crtc->base.enabled = false;
10711 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
10712 crtc->pipe == PIPE_A && !crtc->active) {
10713 /* BIOS forgot to enable pipe A, this mostly happens after
10714 * resume. Force-enable the pipe to fix this, the update_dpms
10715 * call below we restore the pipe to the right state, but leave
10716 * the required bits on. */
10717 intel_enable_pipe_a(dev);
10720 /* Adjust the state of the output pipe according to whether we
10721 * have active connectors/encoders. */
10722 intel_crtc_update_dpms(&crtc->base);
10724 if (crtc->active != crtc->base.enabled) {
10725 struct intel_encoder *encoder;
10727 /* This can happen either due to bugs in the get_hw_state
10728 * functions or because the pipe is force-enabled due to the
10730 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
10731 crtc->base.base.id,
10732 crtc->base.enabled ? "enabled" : "disabled",
10733 crtc->active ? "enabled" : "disabled");
10735 crtc->base.enabled = crtc->active;
10737 /* Because we only establish the connector -> encoder ->
10738 * crtc links if something is active, this means the
10739 * crtc is now deactivated. Break the links. connector
10740 * -> encoder links are only establish when things are
10741 * actually up, hence no need to break them. */
10742 WARN_ON(crtc->active);
10744 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
10745 WARN_ON(encoder->connectors_active);
10746 encoder->base.crtc = NULL;
10751 static void intel_sanitize_encoder(struct intel_encoder *encoder)
10753 struct intel_connector *connector;
10754 struct drm_device *dev = encoder->base.dev;
10756 /* We need to check both for a crtc link (meaning that the
10757 * encoder is active and trying to read from a pipe) and the
10758 * pipe itself being active. */
10759 bool has_active_crtc = encoder->base.crtc &&
10760 to_intel_crtc(encoder->base.crtc)->active;
10762 if (encoder->connectors_active && !has_active_crtc) {
10763 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
10764 encoder->base.base.id,
10765 drm_get_encoder_name(&encoder->base));
10767 /* Connector is active, but has no active pipe. This is
10768 * fallout from our resume register restoring. Disable
10769 * the encoder manually again. */
10770 if (encoder->base.crtc) {
10771 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
10772 encoder->base.base.id,
10773 drm_get_encoder_name(&encoder->base));
10774 encoder->disable(encoder);
10777 /* Inconsistent output/port/pipe state happens presumably due to
10778 * a bug in one of the get_hw_state functions. Or someplace else
10779 * in our code, like the register restore mess on resume. Clamp
10780 * things to off as a safer default. */
10781 list_for_each_entry(connector,
10782 &dev->mode_config.connector_list,
10784 if (connector->encoder != encoder)
10787 intel_connector_break_all_links(connector);
10790 /* Enabled encoders without active connectors will be fixed in
10791 * the crtc fixup. */
10794 void i915_redisable_vga(struct drm_device *dev)
10796 struct drm_i915_private *dev_priv = dev->dev_private;
10797 u32 vga_reg = i915_vgacntrl_reg(dev);
10799 /* This function can be called both from intel_modeset_setup_hw_state or
10800 * at a very early point in our resume sequence, where the power well
10801 * structures are not yet restored. Since this function is at a very
10802 * paranoid "someone might have enabled VGA while we were not looking"
10803 * level, just check if the power well is enabled instead of trying to
10804 * follow the "don't touch the power well if we don't need it" policy
10805 * the rest of the driver uses. */
10806 if (HAS_POWER_WELL(dev) &&
10807 (I915_READ(HSW_PWR_WELL_DRIVER) & HSW_PWR_WELL_STATE_ENABLED) == 0)
10810 if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) {
10811 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
10812 i915_disable_vga(dev);
10813 i915_disable_vga_mem(dev);
10817 static void intel_modeset_readout_hw_state(struct drm_device *dev)
10819 struct drm_i915_private *dev_priv = dev->dev_private;
10821 struct intel_crtc *crtc;
10822 struct intel_encoder *encoder;
10823 struct intel_connector *connector;
10826 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10828 memset(&crtc->config, 0, sizeof(crtc->config));
10830 crtc->active = dev_priv->display.get_pipe_config(crtc,
10833 crtc->base.enabled = crtc->active;
10834 crtc->primary_enabled = crtc->active;
10836 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
10837 crtc->base.base.id,
10838 crtc->active ? "enabled" : "disabled");
10841 /* FIXME: Smash this into the new shared dpll infrastructure. */
10843 intel_ddi_setup_hw_pll_state(dev);
10845 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
10846 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
10848 pll->on = pll->get_hw_state(dev_priv, pll, &pll->hw_state);
10850 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10852 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
10855 pll->refcount = pll->active;
10857 DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
10858 pll->name, pll->refcount, pll->on);
10861 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
10865 if (encoder->get_hw_state(encoder, &pipe)) {
10866 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
10867 encoder->base.crtc = &crtc->base;
10868 if (encoder->get_config)
10869 encoder->get_config(encoder, &crtc->config);
10871 encoder->base.crtc = NULL;
10874 encoder->connectors_active = false;
10875 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
10876 encoder->base.base.id,
10877 drm_get_encoder_name(&encoder->base),
10878 encoder->base.crtc ? "enabled" : "disabled",
10882 list_for_each_entry(connector, &dev->mode_config.connector_list,
10884 if (connector->get_hw_state(connector)) {
10885 connector->base.dpms = DRM_MODE_DPMS_ON;
10886 connector->encoder->connectors_active = true;
10887 connector->base.encoder = &connector->encoder->base;
10889 connector->base.dpms = DRM_MODE_DPMS_OFF;
10890 connector->base.encoder = NULL;
10892 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
10893 connector->base.base.id,
10894 drm_get_connector_name(&connector->base),
10895 connector->base.encoder ? "enabled" : "disabled");
10899 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
10900 * and i915 state tracking structures. */
10901 void intel_modeset_setup_hw_state(struct drm_device *dev,
10902 bool force_restore)
10904 struct drm_i915_private *dev_priv = dev->dev_private;
10906 struct intel_crtc *crtc;
10907 struct intel_encoder *encoder;
10910 intel_modeset_readout_hw_state(dev);
10913 * Now that we have the config, copy it to each CRTC struct
10914 * Note that this could go away if we move to using crtc_config
10915 * checking everywhere.
10917 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10919 if (crtc->active && i915_fastboot) {
10920 intel_crtc_mode_from_pipe_config(crtc, &crtc->config);
10922 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
10923 crtc->base.base.id);
10924 drm_mode_debug_printmodeline(&crtc->base.mode);
10928 /* HW state is read out, now we need to sanitize this mess. */
10929 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
10931 intel_sanitize_encoder(encoder);
10934 for_each_pipe(pipe) {
10935 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
10936 intel_sanitize_crtc(crtc);
10937 intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]");
10940 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
10941 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
10943 if (!pll->on || pll->active)
10946 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name);
10948 pll->disable(dev_priv, pll);
10952 if (IS_HASWELL(dev))
10953 ilk_wm_get_hw_state(dev);
10955 if (force_restore) {
10956 i915_redisable_vga(dev);
10959 * We need to use raw interfaces for restoring state to avoid
10960 * checking (bogus) intermediate states.
10962 for_each_pipe(pipe) {
10963 struct drm_crtc *crtc =
10964 dev_priv->pipe_to_crtc_mapping[pipe];
10966 __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
10970 intel_modeset_update_staged_output_state(dev);
10973 intel_modeset_check_state(dev);
10975 drm_mode_config_reset(dev);
10978 void intel_modeset_gem_init(struct drm_device *dev)
10980 intel_modeset_init_hw(dev);
10982 intel_setup_overlay(dev);
10984 intel_modeset_setup_hw_state(dev, false);
10987 void intel_modeset_cleanup(struct drm_device *dev)
10989 struct drm_i915_private *dev_priv = dev->dev_private;
10990 struct drm_crtc *crtc;
10991 struct drm_connector *connector;
10994 * Interrupts and polling as the first thing to avoid creating havoc.
10995 * Too much stuff here (turning of rps, connectors, ...) would
10996 * experience fancy races otherwise.
10998 drm_irq_uninstall(dev);
10999 cancel_work_sync(&dev_priv->hotplug_work);
11001 * Due to the hpd irq storm handling the hotplug work can re-arm the
11002 * poll handlers. Hence disable polling after hpd handling is shut down.
11004 drm_kms_helper_poll_fini(dev);
11006 mutex_lock(&dev->struct_mutex);
11008 intel_unregister_dsm_handler();
11010 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
11011 /* Skip inactive CRTCs */
11015 intel_increase_pllclock(crtc);
11018 intel_disable_fbc(dev);
11020 i915_enable_vga_mem(dev);
11022 intel_disable_gt_powersave(dev);
11024 ironlake_teardown_rc6(dev);
11026 mutex_unlock(&dev->struct_mutex);
11028 /* flush any delayed tasks or pending work */
11029 flush_scheduled_work();
11031 /* destroy backlight, if any, before the connectors */
11032 intel_panel_destroy_backlight(dev);
11034 /* destroy the sysfs files before encoders/connectors */
11035 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
11036 drm_sysfs_connector_remove(connector);
11038 drm_mode_config_cleanup(dev);
11040 intel_cleanup_overlay(dev);
11044 * Return which encoder is currently attached for connector.
11046 struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
11048 return &intel_attached_encoder(connector)->base;
11051 void intel_connector_attach_encoder(struct intel_connector *connector,
11052 struct intel_encoder *encoder)
11054 connector->encoder = encoder;
11055 drm_mode_connector_attach_encoder(&connector->base,
11060 * set vga decode state - true == enable VGA decode
11062 int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
11064 struct drm_i915_private *dev_priv = dev->dev_private;
11067 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
11069 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
11071 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
11072 pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
11076 struct intel_display_error_state {
11078 u32 power_well_driver;
11080 int num_transcoders;
11082 struct intel_cursor_error_state {
11087 } cursor[I915_MAX_PIPES];
11089 struct intel_pipe_error_state {
11091 } pipe[I915_MAX_PIPES];
11093 struct intel_plane_error_state {
11101 } plane[I915_MAX_PIPES];
11103 struct intel_transcoder_error_state {
11104 enum transcoder cpu_transcoder;
11117 struct intel_display_error_state *
11118 intel_display_capture_error_state(struct drm_device *dev)
11120 drm_i915_private_t *dev_priv = dev->dev_private;
11121 struct intel_display_error_state *error;
11122 int transcoders[] = {
11130 if (INTEL_INFO(dev)->num_pipes == 0)
11133 error = kmalloc(sizeof(*error), GFP_ATOMIC);
11137 if (HAS_POWER_WELL(dev))
11138 error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
11141 if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
11142 error->cursor[i].control = I915_READ(CURCNTR(i));
11143 error->cursor[i].position = I915_READ(CURPOS(i));
11144 error->cursor[i].base = I915_READ(CURBASE(i));
11146 error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
11147 error->cursor[i].position = I915_READ(CURPOS_IVB(i));
11148 error->cursor[i].base = I915_READ(CURBASE_IVB(i));
11151 error->plane[i].control = I915_READ(DSPCNTR(i));
11152 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
11153 if (INTEL_INFO(dev)->gen <= 3) {
11154 error->plane[i].size = I915_READ(DSPSIZE(i));
11155 error->plane[i].pos = I915_READ(DSPPOS(i));
11157 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
11158 error->plane[i].addr = I915_READ(DSPADDR(i));
11159 if (INTEL_INFO(dev)->gen >= 4) {
11160 error->plane[i].surface = I915_READ(DSPSURF(i));
11161 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
11164 error->pipe[i].source = I915_READ(PIPESRC(i));
11167 error->num_transcoders = INTEL_INFO(dev)->num_pipes;
11168 if (HAS_DDI(dev_priv->dev))
11169 error->num_transcoders++; /* Account for eDP. */
11171 for (i = 0; i < error->num_transcoders; i++) {
11172 enum transcoder cpu_transcoder = transcoders[i];
11174 error->transcoder[i].cpu_transcoder = cpu_transcoder;
11176 error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder));
11177 error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
11178 error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder));
11179 error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder));
11180 error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
11181 error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder));
11182 error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder));
11185 /* In the code above we read the registers without checking if the power
11186 * well was on, so here we have to clear the FPGA_DBG_RM_NOCLAIM bit to
11187 * prevent the next I915_WRITE from detecting it and printing an error
11189 intel_uncore_clear_errors(dev);
11194 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
11197 intel_display_print_error_state(struct drm_i915_error_state_buf *m,
11198 struct drm_device *dev,
11199 struct intel_display_error_state *error)
11206 err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
11207 if (HAS_POWER_WELL(dev))
11208 err_printf(m, "PWR_WELL_CTL2: %08x\n",
11209 error->power_well_driver);
11211 err_printf(m, "Pipe [%d]:\n", i);
11212 err_printf(m, " SRC: %08x\n", error->pipe[i].source);
11214 err_printf(m, "Plane [%d]:\n", i);
11215 err_printf(m, " CNTR: %08x\n", error->plane[i].control);
11216 err_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
11217 if (INTEL_INFO(dev)->gen <= 3) {
11218 err_printf(m, " SIZE: %08x\n", error->plane[i].size);
11219 err_printf(m, " POS: %08x\n", error->plane[i].pos);
11221 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
11222 err_printf(m, " ADDR: %08x\n", error->plane[i].addr);
11223 if (INTEL_INFO(dev)->gen >= 4) {
11224 err_printf(m, " SURF: %08x\n", error->plane[i].surface);
11225 err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
11228 err_printf(m, "Cursor [%d]:\n", i);
11229 err_printf(m, " CNTR: %08x\n", error->cursor[i].control);
11230 err_printf(m, " POS: %08x\n", error->cursor[i].position);
11231 err_printf(m, " BASE: %08x\n", error->cursor[i].base);
11234 for (i = 0; i < error->num_transcoders; i++) {
11235 err_printf(m, "CPU transcoder: %c\n",
11236 transcoder_name(error->transcoder[i].cpu_transcoder));
11237 err_printf(m, " CONF: %08x\n", error->transcoder[i].conf);
11238 err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal);
11239 err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank);
11240 err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync);
11241 err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal);
11242 err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank);
11243 err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync);