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);
54 static int intel_framebuffer_init(struct drm_device *dev,
55 struct intel_framebuffer *ifb,
56 struct drm_mode_fb_cmd2 *mode_cmd,
57 struct drm_i915_gem_object *obj);
68 typedef struct intel_limit intel_limit_t;
70 intel_range_t dot, vco, n, m, m1, m2, p, p1;
75 intel_pch_rawclk(struct drm_device *dev)
77 struct drm_i915_private *dev_priv = dev->dev_private;
79 WARN_ON(!HAS_PCH_SPLIT(dev));
81 return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK;
84 static inline u32 /* units of 100MHz */
85 intel_fdi_link_freq(struct drm_device *dev)
88 struct drm_i915_private *dev_priv = dev->dev_private;
89 return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2;
94 static const intel_limit_t intel_limits_i8xx_dac = {
95 .dot = { .min = 25000, .max = 350000 },
96 .vco = { .min = 908000, .max = 1512000 },
97 .n = { .min = 2, .max = 16 },
98 .m = { .min = 96, .max = 140 },
99 .m1 = { .min = 18, .max = 26 },
100 .m2 = { .min = 6, .max = 16 },
101 .p = { .min = 4, .max = 128 },
102 .p1 = { .min = 2, .max = 33 },
103 .p2 = { .dot_limit = 165000,
104 .p2_slow = 4, .p2_fast = 2 },
107 static const intel_limit_t intel_limits_i8xx_dvo = {
108 .dot = { .min = 25000, .max = 350000 },
109 .vco = { .min = 908000, .max = 1512000 },
110 .n = { .min = 2, .max = 16 },
111 .m = { .min = 96, .max = 140 },
112 .m1 = { .min = 18, .max = 26 },
113 .m2 = { .min = 6, .max = 16 },
114 .p = { .min = 4, .max = 128 },
115 .p1 = { .min = 2, .max = 33 },
116 .p2 = { .dot_limit = 165000,
117 .p2_slow = 4, .p2_fast = 4 },
120 static const intel_limit_t intel_limits_i8xx_lvds = {
121 .dot = { .min = 25000, .max = 350000 },
122 .vco = { .min = 908000, .max = 1512000 },
123 .n = { .min = 2, .max = 16 },
124 .m = { .min = 96, .max = 140 },
125 .m1 = { .min = 18, .max = 26 },
126 .m2 = { .min = 6, .max = 16 },
127 .p = { .min = 4, .max = 128 },
128 .p1 = { .min = 1, .max = 6 },
129 .p2 = { .dot_limit = 165000,
130 .p2_slow = 14, .p2_fast = 7 },
133 static const intel_limit_t intel_limits_i9xx_sdvo = {
134 .dot = { .min = 20000, .max = 400000 },
135 .vco = { .min = 1400000, .max = 2800000 },
136 .n = { .min = 1, .max = 6 },
137 .m = { .min = 70, .max = 120 },
138 .m1 = { .min = 8, .max = 18 },
139 .m2 = { .min = 3, .max = 7 },
140 .p = { .min = 5, .max = 80 },
141 .p1 = { .min = 1, .max = 8 },
142 .p2 = { .dot_limit = 200000,
143 .p2_slow = 10, .p2_fast = 5 },
146 static const intel_limit_t intel_limits_i9xx_lvds = {
147 .dot = { .min = 20000, .max = 400000 },
148 .vco = { .min = 1400000, .max = 2800000 },
149 .n = { .min = 1, .max = 6 },
150 .m = { .min = 70, .max = 120 },
151 .m1 = { .min = 8, .max = 18 },
152 .m2 = { .min = 3, .max = 7 },
153 .p = { .min = 7, .max = 98 },
154 .p1 = { .min = 1, .max = 8 },
155 .p2 = { .dot_limit = 112000,
156 .p2_slow = 14, .p2_fast = 7 },
160 static const intel_limit_t intel_limits_g4x_sdvo = {
161 .dot = { .min = 25000, .max = 270000 },
162 .vco = { .min = 1750000, .max = 3500000},
163 .n = { .min = 1, .max = 4 },
164 .m = { .min = 104, .max = 138 },
165 .m1 = { .min = 17, .max = 23 },
166 .m2 = { .min = 5, .max = 11 },
167 .p = { .min = 10, .max = 30 },
168 .p1 = { .min = 1, .max = 3},
169 .p2 = { .dot_limit = 270000,
175 static const intel_limit_t intel_limits_g4x_hdmi = {
176 .dot = { .min = 22000, .max = 400000 },
177 .vco = { .min = 1750000, .max = 3500000},
178 .n = { .min = 1, .max = 4 },
179 .m = { .min = 104, .max = 138 },
180 .m1 = { .min = 16, .max = 23 },
181 .m2 = { .min = 5, .max = 11 },
182 .p = { .min = 5, .max = 80 },
183 .p1 = { .min = 1, .max = 8},
184 .p2 = { .dot_limit = 165000,
185 .p2_slow = 10, .p2_fast = 5 },
188 static const intel_limit_t intel_limits_g4x_single_channel_lvds = {
189 .dot = { .min = 20000, .max = 115000 },
190 .vco = { .min = 1750000, .max = 3500000 },
191 .n = { .min = 1, .max = 3 },
192 .m = { .min = 104, .max = 138 },
193 .m1 = { .min = 17, .max = 23 },
194 .m2 = { .min = 5, .max = 11 },
195 .p = { .min = 28, .max = 112 },
196 .p1 = { .min = 2, .max = 8 },
197 .p2 = { .dot_limit = 0,
198 .p2_slow = 14, .p2_fast = 14
202 static const intel_limit_t intel_limits_g4x_dual_channel_lvds = {
203 .dot = { .min = 80000, .max = 224000 },
204 .vco = { .min = 1750000, .max = 3500000 },
205 .n = { .min = 1, .max = 3 },
206 .m = { .min = 104, .max = 138 },
207 .m1 = { .min = 17, .max = 23 },
208 .m2 = { .min = 5, .max = 11 },
209 .p = { .min = 14, .max = 42 },
210 .p1 = { .min = 2, .max = 6 },
211 .p2 = { .dot_limit = 0,
212 .p2_slow = 7, .p2_fast = 7
216 static const intel_limit_t intel_limits_pineview_sdvo = {
217 .dot = { .min = 20000, .max = 400000},
218 .vco = { .min = 1700000, .max = 3500000 },
219 /* Pineview's Ncounter is a ring counter */
220 .n = { .min = 3, .max = 6 },
221 .m = { .min = 2, .max = 256 },
222 /* Pineview only has one combined m divider, which we treat as m2. */
223 .m1 = { .min = 0, .max = 0 },
224 .m2 = { .min = 0, .max = 254 },
225 .p = { .min = 5, .max = 80 },
226 .p1 = { .min = 1, .max = 8 },
227 .p2 = { .dot_limit = 200000,
228 .p2_slow = 10, .p2_fast = 5 },
231 static const intel_limit_t intel_limits_pineview_lvds = {
232 .dot = { .min = 20000, .max = 400000 },
233 .vco = { .min = 1700000, .max = 3500000 },
234 .n = { .min = 3, .max = 6 },
235 .m = { .min = 2, .max = 256 },
236 .m1 = { .min = 0, .max = 0 },
237 .m2 = { .min = 0, .max = 254 },
238 .p = { .min = 7, .max = 112 },
239 .p1 = { .min = 1, .max = 8 },
240 .p2 = { .dot_limit = 112000,
241 .p2_slow = 14, .p2_fast = 14 },
244 /* Ironlake / Sandybridge
246 * We calculate clock using (register_value + 2) for N/M1/M2, so here
247 * the range value for them is (actual_value - 2).
249 static const intel_limit_t intel_limits_ironlake_dac = {
250 .dot = { .min = 25000, .max = 350000 },
251 .vco = { .min = 1760000, .max = 3510000 },
252 .n = { .min = 1, .max = 5 },
253 .m = { .min = 79, .max = 127 },
254 .m1 = { .min = 12, .max = 22 },
255 .m2 = { .min = 5, .max = 9 },
256 .p = { .min = 5, .max = 80 },
257 .p1 = { .min = 1, .max = 8 },
258 .p2 = { .dot_limit = 225000,
259 .p2_slow = 10, .p2_fast = 5 },
262 static const intel_limit_t intel_limits_ironlake_single_lvds = {
263 .dot = { .min = 25000, .max = 350000 },
264 .vco = { .min = 1760000, .max = 3510000 },
265 .n = { .min = 1, .max = 3 },
266 .m = { .min = 79, .max = 118 },
267 .m1 = { .min = 12, .max = 22 },
268 .m2 = { .min = 5, .max = 9 },
269 .p = { .min = 28, .max = 112 },
270 .p1 = { .min = 2, .max = 8 },
271 .p2 = { .dot_limit = 225000,
272 .p2_slow = 14, .p2_fast = 14 },
275 static const intel_limit_t intel_limits_ironlake_dual_lvds = {
276 .dot = { .min = 25000, .max = 350000 },
277 .vco = { .min = 1760000, .max = 3510000 },
278 .n = { .min = 1, .max = 3 },
279 .m = { .min = 79, .max = 127 },
280 .m1 = { .min = 12, .max = 22 },
281 .m2 = { .min = 5, .max = 9 },
282 .p = { .min = 14, .max = 56 },
283 .p1 = { .min = 2, .max = 8 },
284 .p2 = { .dot_limit = 225000,
285 .p2_slow = 7, .p2_fast = 7 },
288 /* LVDS 100mhz refclk limits. */
289 static const intel_limit_t intel_limits_ironlake_single_lvds_100m = {
290 .dot = { .min = 25000, .max = 350000 },
291 .vco = { .min = 1760000, .max = 3510000 },
292 .n = { .min = 1, .max = 2 },
293 .m = { .min = 79, .max = 126 },
294 .m1 = { .min = 12, .max = 22 },
295 .m2 = { .min = 5, .max = 9 },
296 .p = { .min = 28, .max = 112 },
297 .p1 = { .min = 2, .max = 8 },
298 .p2 = { .dot_limit = 225000,
299 .p2_slow = 14, .p2_fast = 14 },
302 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = {
303 .dot = { .min = 25000, .max = 350000 },
304 .vco = { .min = 1760000, .max = 3510000 },
305 .n = { .min = 1, .max = 3 },
306 .m = { .min = 79, .max = 126 },
307 .m1 = { .min = 12, .max = 22 },
308 .m2 = { .min = 5, .max = 9 },
309 .p = { .min = 14, .max = 42 },
310 .p1 = { .min = 2, .max = 6 },
311 .p2 = { .dot_limit = 225000,
312 .p2_slow = 7, .p2_fast = 7 },
315 static const intel_limit_t intel_limits_vlv = {
317 * These are the data rate limits (measured in fast clocks)
318 * since those are the strictest limits we have. The fast
319 * clock and actual rate limits are more relaxed, so checking
320 * them would make no difference.
322 .dot = { .min = 25000 * 5, .max = 270000 * 5 },
323 .vco = { .min = 4000000, .max = 6000000 },
324 .n = { .min = 1, .max = 7 },
325 .m1 = { .min = 2, .max = 3 },
326 .m2 = { .min = 11, .max = 156 },
327 .p1 = { .min = 2, .max = 3 },
328 .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */
331 static void vlv_clock(int refclk, intel_clock_t *clock)
333 clock->m = clock->m1 * clock->m2;
334 clock->p = clock->p1 * clock->p2;
335 if (WARN_ON(clock->n == 0 || clock->p == 0))
337 clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
338 clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
342 * Returns whether any output on the specified pipe is of the specified type
344 static bool intel_pipe_has_type(struct drm_crtc *crtc, int type)
346 struct drm_device *dev = crtc->dev;
347 struct intel_encoder *encoder;
349 for_each_encoder_on_crtc(dev, crtc, encoder)
350 if (encoder->type == type)
356 static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
359 struct drm_device *dev = crtc->dev;
360 const intel_limit_t *limit;
362 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
363 if (intel_is_dual_link_lvds(dev)) {
364 if (refclk == 100000)
365 limit = &intel_limits_ironlake_dual_lvds_100m;
367 limit = &intel_limits_ironlake_dual_lvds;
369 if (refclk == 100000)
370 limit = &intel_limits_ironlake_single_lvds_100m;
372 limit = &intel_limits_ironlake_single_lvds;
375 limit = &intel_limits_ironlake_dac;
380 static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
382 struct drm_device *dev = crtc->dev;
383 const intel_limit_t *limit;
385 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
386 if (intel_is_dual_link_lvds(dev))
387 limit = &intel_limits_g4x_dual_channel_lvds;
389 limit = &intel_limits_g4x_single_channel_lvds;
390 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
391 intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
392 limit = &intel_limits_g4x_hdmi;
393 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
394 limit = &intel_limits_g4x_sdvo;
395 } else /* The option is for other outputs */
396 limit = &intel_limits_i9xx_sdvo;
401 static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
403 struct drm_device *dev = crtc->dev;
404 const intel_limit_t *limit;
406 if (HAS_PCH_SPLIT(dev))
407 limit = intel_ironlake_limit(crtc, refclk);
408 else if (IS_G4X(dev)) {
409 limit = intel_g4x_limit(crtc);
410 } else if (IS_PINEVIEW(dev)) {
411 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
412 limit = &intel_limits_pineview_lvds;
414 limit = &intel_limits_pineview_sdvo;
415 } else if (IS_VALLEYVIEW(dev)) {
416 limit = &intel_limits_vlv;
417 } else if (!IS_GEN2(dev)) {
418 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
419 limit = &intel_limits_i9xx_lvds;
421 limit = &intel_limits_i9xx_sdvo;
423 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
424 limit = &intel_limits_i8xx_lvds;
425 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO))
426 limit = &intel_limits_i8xx_dvo;
428 limit = &intel_limits_i8xx_dac;
433 /* m1 is reserved as 0 in Pineview, n is a ring counter */
434 static void pineview_clock(int refclk, intel_clock_t *clock)
436 clock->m = clock->m2 + 2;
437 clock->p = clock->p1 * clock->p2;
438 if (WARN_ON(clock->n == 0 || clock->p == 0))
440 clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
441 clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
444 static uint32_t i9xx_dpll_compute_m(struct dpll *dpll)
446 return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
449 static void i9xx_clock(int refclk, intel_clock_t *clock)
451 clock->m = i9xx_dpll_compute_m(clock);
452 clock->p = clock->p1 * clock->p2;
453 if (WARN_ON(clock->n + 2 == 0 || clock->p == 0))
455 clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2);
456 clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
459 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
461 * Returns whether the given set of divisors are valid for a given refclk with
462 * the given connectors.
465 static bool intel_PLL_is_valid(struct drm_device *dev,
466 const intel_limit_t *limit,
467 const intel_clock_t *clock)
469 if (clock->n < limit->n.min || limit->n.max < clock->n)
470 INTELPllInvalid("n out of range\n");
471 if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
472 INTELPllInvalid("p1 out of range\n");
473 if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
474 INTELPllInvalid("m2 out of range\n");
475 if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
476 INTELPllInvalid("m1 out of range\n");
478 if (!IS_PINEVIEW(dev) && !IS_VALLEYVIEW(dev))
479 if (clock->m1 <= clock->m2)
480 INTELPllInvalid("m1 <= m2\n");
482 if (!IS_VALLEYVIEW(dev)) {
483 if (clock->p < limit->p.min || limit->p.max < clock->p)
484 INTELPllInvalid("p out of range\n");
485 if (clock->m < limit->m.min || limit->m.max < clock->m)
486 INTELPllInvalid("m out of range\n");
489 if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
490 INTELPllInvalid("vco out of range\n");
491 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
492 * connector, etc., rather than just a single range.
494 if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
495 INTELPllInvalid("dot out of range\n");
501 i9xx_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
502 int target, int refclk, intel_clock_t *match_clock,
503 intel_clock_t *best_clock)
505 struct drm_device *dev = crtc->dev;
509 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
511 * For LVDS just rely on its current settings for dual-channel.
512 * We haven't figured out how to reliably set up different
513 * single/dual channel state, if we even can.
515 if (intel_is_dual_link_lvds(dev))
516 clock.p2 = limit->p2.p2_fast;
518 clock.p2 = limit->p2.p2_slow;
520 if (target < limit->p2.dot_limit)
521 clock.p2 = limit->p2.p2_slow;
523 clock.p2 = limit->p2.p2_fast;
526 memset(best_clock, 0, sizeof(*best_clock));
528 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
530 for (clock.m2 = limit->m2.min;
531 clock.m2 <= limit->m2.max; clock.m2++) {
532 if (clock.m2 >= clock.m1)
534 for (clock.n = limit->n.min;
535 clock.n <= limit->n.max; clock.n++) {
536 for (clock.p1 = limit->p1.min;
537 clock.p1 <= limit->p1.max; clock.p1++) {
540 i9xx_clock(refclk, &clock);
541 if (!intel_PLL_is_valid(dev, limit,
545 clock.p != match_clock->p)
548 this_err = abs(clock.dot - target);
549 if (this_err < err) {
558 return (err != target);
562 pnv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
563 int target, int refclk, intel_clock_t *match_clock,
564 intel_clock_t *best_clock)
566 struct drm_device *dev = crtc->dev;
570 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
572 * For LVDS just rely on its current settings for dual-channel.
573 * We haven't figured out how to reliably set up different
574 * single/dual channel state, if we even can.
576 if (intel_is_dual_link_lvds(dev))
577 clock.p2 = limit->p2.p2_fast;
579 clock.p2 = limit->p2.p2_slow;
581 if (target < limit->p2.dot_limit)
582 clock.p2 = limit->p2.p2_slow;
584 clock.p2 = limit->p2.p2_fast;
587 memset(best_clock, 0, sizeof(*best_clock));
589 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
591 for (clock.m2 = limit->m2.min;
592 clock.m2 <= limit->m2.max; clock.m2++) {
593 for (clock.n = limit->n.min;
594 clock.n <= limit->n.max; clock.n++) {
595 for (clock.p1 = limit->p1.min;
596 clock.p1 <= limit->p1.max; clock.p1++) {
599 pineview_clock(refclk, &clock);
600 if (!intel_PLL_is_valid(dev, limit,
604 clock.p != match_clock->p)
607 this_err = abs(clock.dot - target);
608 if (this_err < err) {
617 return (err != target);
621 g4x_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
622 int target, int refclk, intel_clock_t *match_clock,
623 intel_clock_t *best_clock)
625 struct drm_device *dev = crtc->dev;
629 /* approximately equals target * 0.00585 */
630 int err_most = (target >> 8) + (target >> 9);
633 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
634 if (intel_is_dual_link_lvds(dev))
635 clock.p2 = limit->p2.p2_fast;
637 clock.p2 = limit->p2.p2_slow;
639 if (target < limit->p2.dot_limit)
640 clock.p2 = limit->p2.p2_slow;
642 clock.p2 = limit->p2.p2_fast;
645 memset(best_clock, 0, sizeof(*best_clock));
646 max_n = limit->n.max;
647 /* based on hardware requirement, prefer smaller n to precision */
648 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
649 /* based on hardware requirement, prefere larger m1,m2 */
650 for (clock.m1 = limit->m1.max;
651 clock.m1 >= limit->m1.min; clock.m1--) {
652 for (clock.m2 = limit->m2.max;
653 clock.m2 >= limit->m2.min; clock.m2--) {
654 for (clock.p1 = limit->p1.max;
655 clock.p1 >= limit->p1.min; clock.p1--) {
658 i9xx_clock(refclk, &clock);
659 if (!intel_PLL_is_valid(dev, limit,
663 this_err = abs(clock.dot - target);
664 if (this_err < err_most) {
678 vlv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
679 int target, int refclk, intel_clock_t *match_clock,
680 intel_clock_t *best_clock)
682 struct drm_device *dev = crtc->dev;
684 unsigned int bestppm = 1000000;
685 /* min update 19.2 MHz */
686 int max_n = min(limit->n.max, refclk / 19200);
689 target *= 5; /* fast clock */
691 memset(best_clock, 0, sizeof(*best_clock));
693 /* based on hardware requirement, prefer smaller n to precision */
694 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
695 for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
696 for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow;
697 clock.p2 -= clock.p2 > 10 ? 2 : 1) {
698 clock.p = clock.p1 * clock.p2;
699 /* based on hardware requirement, prefer bigger m1,m2 values */
700 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) {
701 unsigned int ppm, diff;
703 clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n,
706 vlv_clock(refclk, &clock);
708 if (!intel_PLL_is_valid(dev, limit,
712 diff = abs(clock.dot - target);
713 ppm = div_u64(1000000ULL * diff, target);
715 if (ppm < 100 && clock.p > best_clock->p) {
721 if (bestppm >= 10 && ppm < bestppm - 10) {
734 bool intel_crtc_active(struct drm_crtc *crtc)
736 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
738 /* Be paranoid as we can arrive here with only partial
739 * state retrieved from the hardware during setup.
741 * We can ditch the adjusted_mode.crtc_clock check as soon
742 * as Haswell has gained clock readout/fastboot support.
744 * We can ditch the crtc->primary->fb check as soon as we can
745 * properly reconstruct framebuffers.
747 return intel_crtc->active && crtc->primary->fb &&
748 intel_crtc->config.adjusted_mode.crtc_clock;
751 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
754 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
755 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
757 return intel_crtc->config.cpu_transcoder;
760 static void g4x_wait_for_vblank(struct drm_device *dev, int pipe)
762 struct drm_i915_private *dev_priv = dev->dev_private;
763 u32 frame, frame_reg = PIPE_FRMCOUNT_GM45(pipe);
765 frame = I915_READ(frame_reg);
767 if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50))
768 WARN(1, "vblank wait timed out\n");
772 * intel_wait_for_vblank - wait for vblank on a given pipe
774 * @pipe: pipe to wait for
776 * Wait for vblank to occur on a given pipe. Needed for various bits of
779 void intel_wait_for_vblank(struct drm_device *dev, int pipe)
781 struct drm_i915_private *dev_priv = dev->dev_private;
782 int pipestat_reg = PIPESTAT(pipe);
784 if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) {
785 g4x_wait_for_vblank(dev, pipe);
789 /* Clear existing vblank status. Note this will clear any other
790 * sticky status fields as well.
792 * This races with i915_driver_irq_handler() with the result
793 * that either function could miss a vblank event. Here it is not
794 * fatal, as we will either wait upon the next vblank interrupt or
795 * timeout. Generally speaking intel_wait_for_vblank() is only
796 * called during modeset at which time the GPU should be idle and
797 * should *not* be performing page flips and thus not waiting on
799 * Currently, the result of us stealing a vblank from the irq
800 * handler is that a single frame will be skipped during swapbuffers.
802 I915_WRITE(pipestat_reg,
803 I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS);
805 /* Wait for vblank interrupt bit to set */
806 if (wait_for(I915_READ(pipestat_reg) &
807 PIPE_VBLANK_INTERRUPT_STATUS,
809 DRM_DEBUG_KMS("vblank wait timed out\n");
812 static bool pipe_dsl_stopped(struct drm_device *dev, enum pipe pipe)
814 struct drm_i915_private *dev_priv = dev->dev_private;
815 u32 reg = PIPEDSL(pipe);
820 line_mask = DSL_LINEMASK_GEN2;
822 line_mask = DSL_LINEMASK_GEN3;
824 line1 = I915_READ(reg) & line_mask;
826 line2 = I915_READ(reg) & line_mask;
828 return line1 == line2;
832 * intel_wait_for_pipe_off - wait for pipe to turn off
834 * @pipe: pipe to wait for
836 * After disabling a pipe, we can't wait for vblank in the usual way,
837 * spinning on the vblank interrupt status bit, since we won't actually
838 * see an interrupt when the pipe is disabled.
841 * wait for the pipe register state bit to turn off
844 * wait for the display line value to settle (it usually
845 * ends up stopping at the start of the next frame).
848 void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
850 struct drm_i915_private *dev_priv = dev->dev_private;
851 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
854 if (INTEL_INFO(dev)->gen >= 4) {
855 int reg = PIPECONF(cpu_transcoder);
857 /* Wait for the Pipe State to go off */
858 if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0,
860 WARN(1, "pipe_off wait timed out\n");
862 /* Wait for the display line to settle */
863 if (wait_for(pipe_dsl_stopped(dev, pipe), 100))
864 WARN(1, "pipe_off wait timed out\n");
869 * ibx_digital_port_connected - is the specified port connected?
870 * @dev_priv: i915 private structure
871 * @port: the port to test
873 * Returns true if @port is connected, false otherwise.
875 bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
876 struct intel_digital_port *port)
880 if (HAS_PCH_IBX(dev_priv->dev)) {
883 bit = SDE_PORTB_HOTPLUG;
886 bit = SDE_PORTC_HOTPLUG;
889 bit = SDE_PORTD_HOTPLUG;
897 bit = SDE_PORTB_HOTPLUG_CPT;
900 bit = SDE_PORTC_HOTPLUG_CPT;
903 bit = SDE_PORTD_HOTPLUG_CPT;
910 return I915_READ(SDEISR) & bit;
913 static const char *state_string(bool enabled)
915 return enabled ? "on" : "off";
918 /* Only for pre-ILK configs */
919 void assert_pll(struct drm_i915_private *dev_priv,
920 enum pipe pipe, bool state)
927 val = I915_READ(reg);
928 cur_state = !!(val & DPLL_VCO_ENABLE);
929 WARN(cur_state != state,
930 "PLL state assertion failure (expected %s, current %s)\n",
931 state_string(state), state_string(cur_state));
934 /* XXX: the dsi pll is shared between MIPI DSI ports */
935 static void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state)
940 mutex_lock(&dev_priv->dpio_lock);
941 val = vlv_cck_read(dev_priv, CCK_REG_DSI_PLL_CONTROL);
942 mutex_unlock(&dev_priv->dpio_lock);
944 cur_state = val & DSI_PLL_VCO_EN;
945 WARN(cur_state != state,
946 "DSI PLL state assertion failure (expected %s, current %s)\n",
947 state_string(state), state_string(cur_state));
949 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
950 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
952 struct intel_shared_dpll *
953 intel_crtc_to_shared_dpll(struct intel_crtc *crtc)
955 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
957 if (crtc->config.shared_dpll < 0)
960 return &dev_priv->shared_dplls[crtc->config.shared_dpll];
964 void assert_shared_dpll(struct drm_i915_private *dev_priv,
965 struct intel_shared_dpll *pll,
969 struct intel_dpll_hw_state hw_state;
971 if (HAS_PCH_LPT(dev_priv->dev)) {
972 DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
977 "asserting DPLL %s with no DPLL\n", state_string(state)))
980 cur_state = pll->get_hw_state(dev_priv, pll, &hw_state);
981 WARN(cur_state != state,
982 "%s assertion failure (expected %s, current %s)\n",
983 pll->name, state_string(state), state_string(cur_state));
986 static void assert_fdi_tx(struct drm_i915_private *dev_priv,
987 enum pipe pipe, bool state)
992 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
995 if (HAS_DDI(dev_priv->dev)) {
996 /* DDI does not have a specific FDI_TX register */
997 reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
998 val = I915_READ(reg);
999 cur_state = !!(val & TRANS_DDI_FUNC_ENABLE);
1001 reg = FDI_TX_CTL(pipe);
1002 val = I915_READ(reg);
1003 cur_state = !!(val & FDI_TX_ENABLE);
1005 WARN(cur_state != state,
1006 "FDI TX state assertion failure (expected %s, current %s)\n",
1007 state_string(state), state_string(cur_state));
1009 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1010 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1012 static void assert_fdi_rx(struct drm_i915_private *dev_priv,
1013 enum pipe pipe, bool state)
1019 reg = FDI_RX_CTL(pipe);
1020 val = I915_READ(reg);
1021 cur_state = !!(val & FDI_RX_ENABLE);
1022 WARN(cur_state != state,
1023 "FDI RX state assertion failure (expected %s, current %s)\n",
1024 state_string(state), state_string(cur_state));
1026 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1027 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1029 static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
1035 /* ILK FDI PLL is always enabled */
1036 if (INTEL_INFO(dev_priv->dev)->gen == 5)
1039 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1040 if (HAS_DDI(dev_priv->dev))
1043 reg = FDI_TX_CTL(pipe);
1044 val = I915_READ(reg);
1045 WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n");
1048 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1049 enum pipe pipe, bool state)
1055 reg = FDI_RX_CTL(pipe);
1056 val = I915_READ(reg);
1057 cur_state = !!(val & FDI_RX_PLL_ENABLE);
1058 WARN(cur_state != state,
1059 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1060 state_string(state), state_string(cur_state));
1063 static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1066 int pp_reg, lvds_reg;
1068 enum pipe panel_pipe = PIPE_A;
1071 if (HAS_PCH_SPLIT(dev_priv->dev)) {
1072 pp_reg = PCH_PP_CONTROL;
1073 lvds_reg = PCH_LVDS;
1075 pp_reg = PP_CONTROL;
1079 val = I915_READ(pp_reg);
1080 if (!(val & PANEL_POWER_ON) ||
1081 ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS))
1084 if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT)
1085 panel_pipe = PIPE_B;
1087 WARN(panel_pipe == pipe && locked,
1088 "panel assertion failure, pipe %c regs locked\n",
1092 static void assert_cursor(struct drm_i915_private *dev_priv,
1093 enum pipe pipe, bool state)
1095 struct drm_device *dev = dev_priv->dev;
1098 if (IS_845G(dev) || IS_I865G(dev))
1099 cur_state = I915_READ(_CURACNTR) & CURSOR_ENABLE;
1100 else if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev))
1101 cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
1103 cur_state = I915_READ(CURCNTR_IVB(pipe)) & CURSOR_MODE;
1105 WARN(cur_state != state,
1106 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1107 pipe_name(pipe), state_string(state), state_string(cur_state));
1109 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1110 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1112 void assert_pipe(struct drm_i915_private *dev_priv,
1113 enum pipe pipe, bool state)
1118 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1121 /* if we need the pipe A quirk it must be always on */
1122 if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
1125 if (!intel_display_power_enabled(dev_priv,
1126 POWER_DOMAIN_TRANSCODER(cpu_transcoder))) {
1129 reg = PIPECONF(cpu_transcoder);
1130 val = I915_READ(reg);
1131 cur_state = !!(val & PIPECONF_ENABLE);
1134 WARN(cur_state != state,
1135 "pipe %c assertion failure (expected %s, current %s)\n",
1136 pipe_name(pipe), state_string(state), state_string(cur_state));
1139 static void assert_plane(struct drm_i915_private *dev_priv,
1140 enum plane plane, bool state)
1146 reg = DSPCNTR(plane);
1147 val = I915_READ(reg);
1148 cur_state = !!(val & DISPLAY_PLANE_ENABLE);
1149 WARN(cur_state != state,
1150 "plane %c assertion failure (expected %s, current %s)\n",
1151 plane_name(plane), state_string(state), state_string(cur_state));
1154 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1155 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1157 static void assert_planes_disabled(struct drm_i915_private *dev_priv,
1160 struct drm_device *dev = dev_priv->dev;
1165 /* Primary planes are fixed to pipes on gen4+ */
1166 if (INTEL_INFO(dev)->gen >= 4) {
1167 reg = DSPCNTR(pipe);
1168 val = I915_READ(reg);
1169 WARN(val & DISPLAY_PLANE_ENABLE,
1170 "plane %c assertion failure, should be disabled but not\n",
1175 /* Need to check both planes against the pipe */
1178 val = I915_READ(reg);
1179 cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >>
1180 DISPPLANE_SEL_PIPE_SHIFT;
1181 WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe,
1182 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1183 plane_name(i), pipe_name(pipe));
1187 static void assert_sprites_disabled(struct drm_i915_private *dev_priv,
1190 struct drm_device *dev = dev_priv->dev;
1194 if (IS_VALLEYVIEW(dev)) {
1195 for_each_sprite(pipe, sprite) {
1196 reg = SPCNTR(pipe, sprite);
1197 val = I915_READ(reg);
1198 WARN(val & SP_ENABLE,
1199 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1200 sprite_name(pipe, sprite), pipe_name(pipe));
1202 } else if (INTEL_INFO(dev)->gen >= 7) {
1204 val = I915_READ(reg);
1205 WARN(val & SPRITE_ENABLE,
1206 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1207 plane_name(pipe), pipe_name(pipe));
1208 } else if (INTEL_INFO(dev)->gen >= 5) {
1209 reg = DVSCNTR(pipe);
1210 val = I915_READ(reg);
1211 WARN(val & DVS_ENABLE,
1212 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1213 plane_name(pipe), pipe_name(pipe));
1217 static void ibx_assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
1222 WARN_ON(!(HAS_PCH_IBX(dev_priv->dev) || HAS_PCH_CPT(dev_priv->dev)));
1224 val = I915_READ(PCH_DREF_CONTROL);
1225 enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK |
1226 DREF_SUPERSPREAD_SOURCE_MASK));
1227 WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n");
1230 static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1237 reg = PCH_TRANSCONF(pipe);
1238 val = I915_READ(reg);
1239 enabled = !!(val & TRANS_ENABLE);
1241 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1245 static bool dp_pipe_enabled(struct drm_i915_private *dev_priv,
1246 enum pipe pipe, u32 port_sel, u32 val)
1248 if ((val & DP_PORT_EN) == 0)
1251 if (HAS_PCH_CPT(dev_priv->dev)) {
1252 u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe);
1253 u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg);
1254 if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel)
1257 if ((val & DP_PIPE_MASK) != (pipe << 30))
1263 static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
1264 enum pipe pipe, u32 val)
1266 if ((val & SDVO_ENABLE) == 0)
1269 if (HAS_PCH_CPT(dev_priv->dev)) {
1270 if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe))
1273 if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe))
1279 static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
1280 enum pipe pipe, u32 val)
1282 if ((val & LVDS_PORT_EN) == 0)
1285 if (HAS_PCH_CPT(dev_priv->dev)) {
1286 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1289 if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
1295 static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
1296 enum pipe pipe, u32 val)
1298 if ((val & ADPA_DAC_ENABLE) == 0)
1300 if (HAS_PCH_CPT(dev_priv->dev)) {
1301 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1304 if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
1310 static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
1311 enum pipe pipe, int reg, u32 port_sel)
1313 u32 val = I915_READ(reg);
1314 WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val),
1315 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1316 reg, pipe_name(pipe));
1318 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0
1319 && (val & DP_PIPEB_SELECT),
1320 "IBX PCH dp port still using transcoder B\n");
1323 static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
1324 enum pipe pipe, int reg)
1326 u32 val = I915_READ(reg);
1327 WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
1328 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1329 reg, pipe_name(pipe));
1331 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0
1332 && (val & SDVO_PIPE_B_SELECT),
1333 "IBX PCH hdmi port still using transcoder B\n");
1336 static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
1342 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B);
1343 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
1344 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
1347 val = I915_READ(reg);
1348 WARN(adpa_pipe_enabled(dev_priv, pipe, val),
1349 "PCH VGA enabled on transcoder %c, should be disabled\n",
1353 val = I915_READ(reg);
1354 WARN(lvds_pipe_enabled(dev_priv, pipe, val),
1355 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1358 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB);
1359 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC);
1360 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID);
1363 static void intel_init_dpio(struct drm_device *dev)
1365 struct drm_i915_private *dev_priv = dev->dev_private;
1367 if (!IS_VALLEYVIEW(dev))
1370 DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO;
1373 static void intel_reset_dpio(struct drm_device *dev)
1375 struct drm_i915_private *dev_priv = dev->dev_private;
1377 if (!IS_VALLEYVIEW(dev))
1381 * Enable the CRI clock source so we can get at the display and the
1382 * reference clock for VGA hotplug / manual detection.
1384 I915_WRITE(DPLL(PIPE_B), I915_READ(DPLL(PIPE_B)) |
1385 DPLL_REFA_CLK_ENABLE_VLV |
1386 DPLL_INTEGRATED_CRI_CLK_VLV);
1389 * From VLV2A0_DP_eDP_DPIO_driver_vbios_notes_10.docx -
1390 * 6. De-assert cmn_reset/side_reset. Same as VLV X0.
1391 * a. GUnit 0x2110 bit[0] set to 1 (def 0)
1392 * b. The other bits such as sfr settings / modesel may all be set
1395 * This should only be done on init and resume from S3 with both
1396 * PLLs disabled, or we risk losing DPIO and PLL synchronization.
1398 I915_WRITE(DPIO_CTL, I915_READ(DPIO_CTL) | DPIO_CMNRST);
1401 static void vlv_enable_pll(struct intel_crtc *crtc)
1403 struct drm_device *dev = crtc->base.dev;
1404 struct drm_i915_private *dev_priv = dev->dev_private;
1405 int reg = DPLL(crtc->pipe);
1406 u32 dpll = crtc->config.dpll_hw_state.dpll;
1408 assert_pipe_disabled(dev_priv, crtc->pipe);
1410 /* No really, not for ILK+ */
1411 BUG_ON(!IS_VALLEYVIEW(dev_priv->dev));
1413 /* PLL is protected by panel, make sure we can write it */
1414 if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev))
1415 assert_panel_unlocked(dev_priv, crtc->pipe);
1417 I915_WRITE(reg, dpll);
1421 if (wait_for(((I915_READ(reg) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
1422 DRM_ERROR("DPLL %d failed to lock\n", crtc->pipe);
1424 I915_WRITE(DPLL_MD(crtc->pipe), crtc->config.dpll_hw_state.dpll_md);
1425 POSTING_READ(DPLL_MD(crtc->pipe));
1427 /* We do this three times for luck */
1428 I915_WRITE(reg, dpll);
1430 udelay(150); /* wait for warmup */
1431 I915_WRITE(reg, dpll);
1433 udelay(150); /* wait for warmup */
1434 I915_WRITE(reg, dpll);
1436 udelay(150); /* wait for warmup */
1439 static void i9xx_enable_pll(struct intel_crtc *crtc)
1441 struct drm_device *dev = crtc->base.dev;
1442 struct drm_i915_private *dev_priv = dev->dev_private;
1443 int reg = DPLL(crtc->pipe);
1444 u32 dpll = crtc->config.dpll_hw_state.dpll;
1446 assert_pipe_disabled(dev_priv, crtc->pipe);
1448 /* No really, not for ILK+ */
1449 BUG_ON(INTEL_INFO(dev)->gen >= 5);
1451 /* PLL is protected by panel, make sure we can write it */
1452 if (IS_MOBILE(dev) && !IS_I830(dev))
1453 assert_panel_unlocked(dev_priv, crtc->pipe);
1455 I915_WRITE(reg, dpll);
1457 /* Wait for the clocks to stabilize. */
1461 if (INTEL_INFO(dev)->gen >= 4) {
1462 I915_WRITE(DPLL_MD(crtc->pipe),
1463 crtc->config.dpll_hw_state.dpll_md);
1465 /* The pixel multiplier can only be updated once the
1466 * DPLL is enabled and the clocks are stable.
1468 * So write it again.
1470 I915_WRITE(reg, dpll);
1473 /* We do this three times for luck */
1474 I915_WRITE(reg, dpll);
1476 udelay(150); /* wait for warmup */
1477 I915_WRITE(reg, dpll);
1479 udelay(150); /* wait for warmup */
1480 I915_WRITE(reg, dpll);
1482 udelay(150); /* wait for warmup */
1486 * i9xx_disable_pll - disable a PLL
1487 * @dev_priv: i915 private structure
1488 * @pipe: pipe PLL to disable
1490 * Disable the PLL for @pipe, making sure the pipe is off first.
1492 * Note! This is for pre-ILK only.
1494 static void i9xx_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1496 /* Don't disable pipe A or pipe A PLLs if needed */
1497 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1500 /* Make sure the pipe isn't still relying on us */
1501 assert_pipe_disabled(dev_priv, pipe);
1503 I915_WRITE(DPLL(pipe), 0);
1504 POSTING_READ(DPLL(pipe));
1507 static void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1511 /* Make sure the pipe isn't still relying on us */
1512 assert_pipe_disabled(dev_priv, pipe);
1515 * Leave integrated clock source and reference clock enabled for pipe B.
1516 * The latter is needed for VGA hotplug / manual detection.
1519 val = DPLL_INTEGRATED_CRI_CLK_VLV | DPLL_REFA_CLK_ENABLE_VLV;
1520 I915_WRITE(DPLL(pipe), val);
1521 POSTING_READ(DPLL(pipe));
1524 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1525 struct intel_digital_port *dport)
1529 switch (dport->port) {
1531 port_mask = DPLL_PORTB_READY_MASK;
1534 port_mask = DPLL_PORTC_READY_MASK;
1540 if (wait_for((I915_READ(DPLL(0)) & port_mask) == 0, 1000))
1541 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1542 port_name(dport->port), I915_READ(DPLL(0)));
1546 * ironlake_enable_shared_dpll - enable PCH PLL
1547 * @dev_priv: i915 private structure
1548 * @pipe: pipe PLL to enable
1550 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1551 * drives the transcoder clock.
1553 static void ironlake_enable_shared_dpll(struct intel_crtc *crtc)
1555 struct drm_device *dev = crtc->base.dev;
1556 struct drm_i915_private *dev_priv = dev->dev_private;
1557 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
1559 /* PCH PLLs only available on ILK, SNB and IVB */
1560 BUG_ON(INTEL_INFO(dev)->gen < 5);
1561 if (WARN_ON(pll == NULL))
1564 if (WARN_ON(pll->refcount == 0))
1567 DRM_DEBUG_KMS("enable %s (active %d, on? %d)for crtc %d\n",
1568 pll->name, pll->active, pll->on,
1569 crtc->base.base.id);
1571 if (pll->active++) {
1573 assert_shared_dpll_enabled(dev_priv, pll);
1578 DRM_DEBUG_KMS("enabling %s\n", pll->name);
1579 pll->enable(dev_priv, pll);
1583 static void intel_disable_shared_dpll(struct intel_crtc *crtc)
1585 struct drm_device *dev = crtc->base.dev;
1586 struct drm_i915_private *dev_priv = dev->dev_private;
1587 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
1589 /* PCH only available on ILK+ */
1590 BUG_ON(INTEL_INFO(dev)->gen < 5);
1591 if (WARN_ON(pll == NULL))
1594 if (WARN_ON(pll->refcount == 0))
1597 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1598 pll->name, pll->active, pll->on,
1599 crtc->base.base.id);
1601 if (WARN_ON(pll->active == 0)) {
1602 assert_shared_dpll_disabled(dev_priv, pll);
1606 assert_shared_dpll_enabled(dev_priv, pll);
1611 DRM_DEBUG_KMS("disabling %s\n", pll->name);
1612 pll->disable(dev_priv, pll);
1616 static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1619 struct drm_device *dev = dev_priv->dev;
1620 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
1621 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1622 uint32_t reg, val, pipeconf_val;
1624 /* PCH only available on ILK+ */
1625 BUG_ON(INTEL_INFO(dev)->gen < 5);
1627 /* Make sure PCH DPLL is enabled */
1628 assert_shared_dpll_enabled(dev_priv,
1629 intel_crtc_to_shared_dpll(intel_crtc));
1631 /* FDI must be feeding us bits for PCH ports */
1632 assert_fdi_tx_enabled(dev_priv, pipe);
1633 assert_fdi_rx_enabled(dev_priv, pipe);
1635 if (HAS_PCH_CPT(dev)) {
1636 /* Workaround: Set the timing override bit before enabling the
1637 * pch transcoder. */
1638 reg = TRANS_CHICKEN2(pipe);
1639 val = I915_READ(reg);
1640 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1641 I915_WRITE(reg, val);
1644 reg = PCH_TRANSCONF(pipe);
1645 val = I915_READ(reg);
1646 pipeconf_val = I915_READ(PIPECONF(pipe));
1648 if (HAS_PCH_IBX(dev_priv->dev)) {
1650 * make the BPC in transcoder be consistent with
1651 * that in pipeconf reg.
1653 val &= ~PIPECONF_BPC_MASK;
1654 val |= pipeconf_val & PIPECONF_BPC_MASK;
1657 val &= ~TRANS_INTERLACE_MASK;
1658 if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
1659 if (HAS_PCH_IBX(dev_priv->dev) &&
1660 intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO))
1661 val |= TRANS_LEGACY_INTERLACED_ILK;
1663 val |= TRANS_INTERLACED;
1665 val |= TRANS_PROGRESSIVE;
1667 I915_WRITE(reg, val | TRANS_ENABLE);
1668 if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
1669 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe));
1672 static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1673 enum transcoder cpu_transcoder)
1675 u32 val, pipeconf_val;
1677 /* PCH only available on ILK+ */
1678 BUG_ON(INTEL_INFO(dev_priv->dev)->gen < 5);
1680 /* FDI must be feeding us bits for PCH ports */
1681 assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
1682 assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
1684 /* Workaround: set timing override bit. */
1685 val = I915_READ(_TRANSA_CHICKEN2);
1686 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1687 I915_WRITE(_TRANSA_CHICKEN2, val);
1690 pipeconf_val = I915_READ(PIPECONF(cpu_transcoder));
1692 if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) ==
1693 PIPECONF_INTERLACED_ILK)
1694 val |= TRANS_INTERLACED;
1696 val |= TRANS_PROGRESSIVE;
1698 I915_WRITE(LPT_TRANSCONF, val);
1699 if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100))
1700 DRM_ERROR("Failed to enable PCH transcoder\n");
1703 static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
1706 struct drm_device *dev = dev_priv->dev;
1709 /* FDI relies on the transcoder */
1710 assert_fdi_tx_disabled(dev_priv, pipe);
1711 assert_fdi_rx_disabled(dev_priv, pipe);
1713 /* Ports must be off as well */
1714 assert_pch_ports_disabled(dev_priv, pipe);
1716 reg = PCH_TRANSCONF(pipe);
1717 val = I915_READ(reg);
1718 val &= ~TRANS_ENABLE;
1719 I915_WRITE(reg, val);
1720 /* wait for PCH transcoder off, transcoder state */
1721 if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
1722 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe));
1724 if (!HAS_PCH_IBX(dev)) {
1725 /* Workaround: Clear the timing override chicken bit again. */
1726 reg = TRANS_CHICKEN2(pipe);
1727 val = I915_READ(reg);
1728 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1729 I915_WRITE(reg, val);
1733 static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
1737 val = I915_READ(LPT_TRANSCONF);
1738 val &= ~TRANS_ENABLE;
1739 I915_WRITE(LPT_TRANSCONF, val);
1740 /* wait for PCH transcoder off, transcoder state */
1741 if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50))
1742 DRM_ERROR("Failed to disable PCH transcoder\n");
1744 /* Workaround: clear timing override bit. */
1745 val = I915_READ(_TRANSA_CHICKEN2);
1746 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1747 I915_WRITE(_TRANSA_CHICKEN2, val);
1751 * intel_enable_pipe - enable a pipe, asserting requirements
1752 * @crtc: crtc responsible for the pipe
1754 * Enable @crtc's pipe, making sure that various hardware specific requirements
1755 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1757 static void intel_enable_pipe(struct intel_crtc *crtc)
1759 struct drm_device *dev = crtc->base.dev;
1760 struct drm_i915_private *dev_priv = dev->dev_private;
1761 enum pipe pipe = crtc->pipe;
1762 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1764 enum pipe pch_transcoder;
1768 assert_planes_disabled(dev_priv, pipe);
1769 assert_cursor_disabled(dev_priv, pipe);
1770 assert_sprites_disabled(dev_priv, pipe);
1772 if (HAS_PCH_LPT(dev_priv->dev))
1773 pch_transcoder = TRANSCODER_A;
1775 pch_transcoder = pipe;
1778 * A pipe without a PLL won't actually be able to drive bits from
1779 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1782 if (!HAS_PCH_SPLIT(dev_priv->dev))
1783 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DSI))
1784 assert_dsi_pll_enabled(dev_priv);
1786 assert_pll_enabled(dev_priv, pipe);
1788 if (crtc->config.has_pch_encoder) {
1789 /* if driving the PCH, we need FDI enabled */
1790 assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
1791 assert_fdi_tx_pll_enabled(dev_priv,
1792 (enum pipe) cpu_transcoder);
1794 /* FIXME: assert CPU port conditions for SNB+ */
1797 reg = PIPECONF(cpu_transcoder);
1798 val = I915_READ(reg);
1799 if (val & PIPECONF_ENABLE) {
1800 WARN_ON(!(pipe == PIPE_A &&
1801 dev_priv->quirks & QUIRK_PIPEA_FORCE));
1805 I915_WRITE(reg, val | PIPECONF_ENABLE);
1809 * There's no guarantee the pipe will really start running now. It
1810 * depends on the Gen, the output type and the relative order between
1811 * pipe and plane enabling. Avoid waiting on HSW+ since it's not
1813 * TODO: audit the previous gens.
1815 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
1816 intel_wait_for_vblank(dev_priv->dev, pipe);
1820 * intel_disable_pipe - disable a pipe, asserting requirements
1821 * @dev_priv: i915 private structure
1822 * @pipe: pipe to disable
1824 * Disable @pipe, making sure that various hardware specific requirements
1825 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1827 * @pipe should be %PIPE_A or %PIPE_B.
1829 * Will wait until the pipe has shut down before returning.
1831 static void intel_disable_pipe(struct drm_i915_private *dev_priv,
1834 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1840 * Make sure planes won't keep trying to pump pixels to us,
1841 * or we might hang the display.
1843 assert_planes_disabled(dev_priv, pipe);
1844 assert_cursor_disabled(dev_priv, pipe);
1845 assert_sprites_disabled(dev_priv, pipe);
1847 /* Don't disable pipe A or pipe A PLLs if needed */
1848 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1851 reg = PIPECONF(cpu_transcoder);
1852 val = I915_READ(reg);
1853 if ((val & PIPECONF_ENABLE) == 0)
1856 I915_WRITE(reg, val & ~PIPECONF_ENABLE);
1857 intel_wait_for_pipe_off(dev_priv->dev, pipe);
1861 * Plane regs are double buffered, going from enabled->disabled needs a
1862 * trigger in order to latch. The display address reg provides this.
1864 void intel_flush_primary_plane(struct drm_i915_private *dev_priv,
1867 struct drm_device *dev = dev_priv->dev;
1868 u32 reg = INTEL_INFO(dev)->gen >= 4 ? DSPSURF(plane) : DSPADDR(plane);
1870 I915_WRITE(reg, I915_READ(reg));
1875 * intel_enable_primary_hw_plane - enable the primary plane on a given pipe
1876 * @dev_priv: i915 private structure
1877 * @plane: plane to enable
1878 * @pipe: pipe being fed
1880 * Enable @plane on @pipe, making sure that @pipe is running first.
1882 static void intel_enable_primary_hw_plane(struct drm_i915_private *dev_priv,
1883 enum plane plane, enum pipe pipe)
1885 struct intel_crtc *intel_crtc =
1886 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
1890 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1891 assert_pipe_enabled(dev_priv, pipe);
1893 WARN(intel_crtc->primary_enabled, "Primary plane already enabled\n");
1895 intel_crtc->primary_enabled = true;
1897 reg = DSPCNTR(plane);
1898 val = I915_READ(reg);
1899 if (val & DISPLAY_PLANE_ENABLE)
1902 I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
1903 intel_flush_primary_plane(dev_priv, plane);
1904 intel_wait_for_vblank(dev_priv->dev, pipe);
1908 * intel_disable_primary_hw_plane - disable the primary hardware plane
1909 * @dev_priv: i915 private structure
1910 * @plane: plane to disable
1911 * @pipe: pipe consuming the data
1913 * Disable @plane; should be an independent operation.
1915 static void intel_disable_primary_hw_plane(struct drm_i915_private *dev_priv,
1916 enum plane plane, enum pipe pipe)
1918 struct intel_crtc *intel_crtc =
1919 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
1923 WARN(!intel_crtc->primary_enabled, "Primary plane already disabled\n");
1925 intel_crtc->primary_enabled = false;
1927 reg = DSPCNTR(plane);
1928 val = I915_READ(reg);
1929 if ((val & DISPLAY_PLANE_ENABLE) == 0)
1932 I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
1933 intel_flush_primary_plane(dev_priv, plane);
1934 intel_wait_for_vblank(dev_priv->dev, pipe);
1937 static bool need_vtd_wa(struct drm_device *dev)
1939 #ifdef CONFIG_INTEL_IOMMU
1940 if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped)
1946 static int intel_align_height(struct drm_device *dev, int height, bool tiled)
1950 tile_height = tiled ? (IS_GEN2(dev) ? 16 : 8) : 1;
1951 return ALIGN(height, tile_height);
1955 intel_pin_and_fence_fb_obj(struct drm_device *dev,
1956 struct drm_i915_gem_object *obj,
1957 struct intel_ring_buffer *pipelined)
1959 struct drm_i915_private *dev_priv = dev->dev_private;
1963 switch (obj->tiling_mode) {
1964 case I915_TILING_NONE:
1965 if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
1966 alignment = 128 * 1024;
1967 else if (INTEL_INFO(dev)->gen >= 4)
1968 alignment = 4 * 1024;
1970 alignment = 64 * 1024;
1973 /* pin() will align the object as required by fence */
1977 WARN(1, "Y tiled bo slipped through, driver bug!\n");
1983 /* Note that the w/a also requires 64 PTE of padding following the
1984 * bo. We currently fill all unused PTE with the shadow page and so
1985 * we should always have valid PTE following the scanout preventing
1988 if (need_vtd_wa(dev) && alignment < 256 * 1024)
1989 alignment = 256 * 1024;
1991 dev_priv->mm.interruptible = false;
1992 ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
1994 goto err_interruptible;
1996 /* Install a fence for tiled scan-out. Pre-i965 always needs a
1997 * fence, whereas 965+ only requires a fence if using
1998 * framebuffer compression. For simplicity, we always install
1999 * a fence as the cost is not that onerous.
2001 ret = i915_gem_object_get_fence(obj);
2005 i915_gem_object_pin_fence(obj);
2007 dev_priv->mm.interruptible = true;
2011 i915_gem_object_unpin_from_display_plane(obj);
2013 dev_priv->mm.interruptible = true;
2017 void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
2019 i915_gem_object_unpin_fence(obj);
2020 i915_gem_object_unpin_from_display_plane(obj);
2023 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
2024 * is assumed to be a power-of-two. */
2025 unsigned long intel_gen4_compute_page_offset(int *x, int *y,
2026 unsigned int tiling_mode,
2030 if (tiling_mode != I915_TILING_NONE) {
2031 unsigned int tile_rows, tiles;
2036 tiles = *x / (512/cpp);
2039 return tile_rows * pitch * 8 + tiles * 4096;
2041 unsigned int offset;
2043 offset = *y * pitch + *x * cpp;
2045 *x = (offset & 4095) / cpp;
2046 return offset & -4096;
2050 int intel_format_to_fourcc(int format)
2053 case DISPPLANE_8BPP:
2054 return DRM_FORMAT_C8;
2055 case DISPPLANE_BGRX555:
2056 return DRM_FORMAT_XRGB1555;
2057 case DISPPLANE_BGRX565:
2058 return DRM_FORMAT_RGB565;
2060 case DISPPLANE_BGRX888:
2061 return DRM_FORMAT_XRGB8888;
2062 case DISPPLANE_RGBX888:
2063 return DRM_FORMAT_XBGR8888;
2064 case DISPPLANE_BGRX101010:
2065 return DRM_FORMAT_XRGB2101010;
2066 case DISPPLANE_RGBX101010:
2067 return DRM_FORMAT_XBGR2101010;
2071 static bool intel_alloc_plane_obj(struct intel_crtc *crtc,
2072 struct intel_plane_config *plane_config)
2074 struct drm_device *dev = crtc->base.dev;
2075 struct drm_i915_gem_object *obj = NULL;
2076 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
2077 u32 base = plane_config->base;
2079 if (plane_config->size == 0)
2082 obj = i915_gem_object_create_stolen_for_preallocated(dev, base, base,
2083 plane_config->size);
2087 if (plane_config->tiled) {
2088 obj->tiling_mode = I915_TILING_X;
2089 obj->stride = crtc->base.primary->fb->pitches[0];
2092 mode_cmd.pixel_format = crtc->base.primary->fb->pixel_format;
2093 mode_cmd.width = crtc->base.primary->fb->width;
2094 mode_cmd.height = crtc->base.primary->fb->height;
2095 mode_cmd.pitches[0] = crtc->base.primary->fb->pitches[0];
2097 mutex_lock(&dev->struct_mutex);
2099 if (intel_framebuffer_init(dev, to_intel_framebuffer(crtc->base.primary->fb),
2101 DRM_DEBUG_KMS("intel fb init failed\n");
2105 mutex_unlock(&dev->struct_mutex);
2107 DRM_DEBUG_KMS("plane fb obj %p\n", obj);
2111 drm_gem_object_unreference(&obj->base);
2112 mutex_unlock(&dev->struct_mutex);
2116 static void intel_find_plane_obj(struct intel_crtc *intel_crtc,
2117 struct intel_plane_config *plane_config)
2119 struct drm_device *dev = intel_crtc->base.dev;
2121 struct intel_crtc *i;
2122 struct intel_framebuffer *fb;
2124 if (!intel_crtc->base.primary->fb)
2127 if (intel_alloc_plane_obj(intel_crtc, plane_config))
2130 kfree(intel_crtc->base.primary->fb);
2131 intel_crtc->base.primary->fb = NULL;
2134 * Failed to alloc the obj, check to see if we should share
2135 * an fb with another CRTC instead
2137 list_for_each_entry(c, &dev->mode_config.crtc_list, head) {
2138 i = to_intel_crtc(c);
2140 if (c == &intel_crtc->base)
2143 if (!i->active || !c->primary->fb)
2146 fb = to_intel_framebuffer(c->primary->fb);
2147 if (i915_gem_obj_ggtt_offset(fb->obj) == plane_config->base) {
2148 drm_framebuffer_reference(c->primary->fb);
2149 intel_crtc->base.primary->fb = c->primary->fb;
2155 static int i9xx_update_primary_plane(struct drm_crtc *crtc,
2156 struct drm_framebuffer *fb,
2159 struct drm_device *dev = crtc->dev;
2160 struct drm_i915_private *dev_priv = dev->dev_private;
2161 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2162 struct intel_framebuffer *intel_fb;
2163 struct drm_i915_gem_object *obj;
2164 int plane = intel_crtc->plane;
2165 unsigned long linear_offset;
2169 intel_fb = to_intel_framebuffer(fb);
2170 obj = intel_fb->obj;
2172 reg = DSPCNTR(plane);
2173 dspcntr = I915_READ(reg);
2174 /* Mask out pixel format bits in case we change it */
2175 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2176 switch (fb->pixel_format) {
2178 dspcntr |= DISPPLANE_8BPP;
2180 case DRM_FORMAT_XRGB1555:
2181 case DRM_FORMAT_ARGB1555:
2182 dspcntr |= DISPPLANE_BGRX555;
2184 case DRM_FORMAT_RGB565:
2185 dspcntr |= DISPPLANE_BGRX565;
2187 case DRM_FORMAT_XRGB8888:
2188 case DRM_FORMAT_ARGB8888:
2189 dspcntr |= DISPPLANE_BGRX888;
2191 case DRM_FORMAT_XBGR8888:
2192 case DRM_FORMAT_ABGR8888:
2193 dspcntr |= DISPPLANE_RGBX888;
2195 case DRM_FORMAT_XRGB2101010:
2196 case DRM_FORMAT_ARGB2101010:
2197 dspcntr |= DISPPLANE_BGRX101010;
2199 case DRM_FORMAT_XBGR2101010:
2200 case DRM_FORMAT_ABGR2101010:
2201 dspcntr |= DISPPLANE_RGBX101010;
2207 if (INTEL_INFO(dev)->gen >= 4) {
2208 if (obj->tiling_mode != I915_TILING_NONE)
2209 dspcntr |= DISPPLANE_TILED;
2211 dspcntr &= ~DISPPLANE_TILED;
2215 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2217 I915_WRITE(reg, dspcntr);
2219 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2221 if (INTEL_INFO(dev)->gen >= 4) {
2222 intel_crtc->dspaddr_offset =
2223 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2224 fb->bits_per_pixel / 8,
2226 linear_offset -= intel_crtc->dspaddr_offset;
2228 intel_crtc->dspaddr_offset = linear_offset;
2231 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2232 i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
2234 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2235 if (INTEL_INFO(dev)->gen >= 4) {
2236 I915_WRITE(DSPSURF(plane),
2237 i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
2238 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2239 I915_WRITE(DSPLINOFF(plane), linear_offset);
2241 I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset);
2247 static int ironlake_update_primary_plane(struct drm_crtc *crtc,
2248 struct drm_framebuffer *fb,
2251 struct drm_device *dev = crtc->dev;
2252 struct drm_i915_private *dev_priv = dev->dev_private;
2253 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2254 struct intel_framebuffer *intel_fb;
2255 struct drm_i915_gem_object *obj;
2256 int plane = intel_crtc->plane;
2257 unsigned long linear_offset;
2261 intel_fb = to_intel_framebuffer(fb);
2262 obj = intel_fb->obj;
2264 reg = DSPCNTR(plane);
2265 dspcntr = I915_READ(reg);
2266 /* Mask out pixel format bits in case we change it */
2267 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2268 switch (fb->pixel_format) {
2270 dspcntr |= DISPPLANE_8BPP;
2272 case DRM_FORMAT_RGB565:
2273 dspcntr |= DISPPLANE_BGRX565;
2275 case DRM_FORMAT_XRGB8888:
2276 case DRM_FORMAT_ARGB8888:
2277 dspcntr |= DISPPLANE_BGRX888;
2279 case DRM_FORMAT_XBGR8888:
2280 case DRM_FORMAT_ABGR8888:
2281 dspcntr |= DISPPLANE_RGBX888;
2283 case DRM_FORMAT_XRGB2101010:
2284 case DRM_FORMAT_ARGB2101010:
2285 dspcntr |= DISPPLANE_BGRX101010;
2287 case DRM_FORMAT_XBGR2101010:
2288 case DRM_FORMAT_ABGR2101010:
2289 dspcntr |= DISPPLANE_RGBX101010;
2295 if (obj->tiling_mode != I915_TILING_NONE)
2296 dspcntr |= DISPPLANE_TILED;
2298 dspcntr &= ~DISPPLANE_TILED;
2300 if (IS_HASWELL(dev) || IS_BROADWELL(dev))
2301 dspcntr &= ~DISPPLANE_TRICKLE_FEED_DISABLE;
2303 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2305 I915_WRITE(reg, dspcntr);
2307 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2308 intel_crtc->dspaddr_offset =
2309 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2310 fb->bits_per_pixel / 8,
2312 linear_offset -= intel_crtc->dspaddr_offset;
2314 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2315 i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
2317 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2318 I915_WRITE(DSPSURF(plane),
2319 i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
2320 if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
2321 I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
2323 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2324 I915_WRITE(DSPLINOFF(plane), linear_offset);
2331 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2333 intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2334 int x, int y, enum mode_set_atomic state)
2336 struct drm_device *dev = crtc->dev;
2337 struct drm_i915_private *dev_priv = dev->dev_private;
2339 if (dev_priv->display.disable_fbc)
2340 dev_priv->display.disable_fbc(dev);
2341 intel_increase_pllclock(crtc);
2343 return dev_priv->display.update_primary_plane(crtc, fb, x, y);
2346 void intel_display_handle_reset(struct drm_device *dev)
2348 struct drm_i915_private *dev_priv = dev->dev_private;
2349 struct drm_crtc *crtc;
2352 * Flips in the rings have been nuked by the reset,
2353 * so complete all pending flips so that user space
2354 * will get its events and not get stuck.
2356 * Also update the base address of all primary
2357 * planes to the the last fb to make sure we're
2358 * showing the correct fb after a reset.
2360 * Need to make two loops over the crtcs so that we
2361 * don't try to grab a crtc mutex before the
2362 * pending_flip_queue really got woken up.
2365 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2366 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2367 enum plane plane = intel_crtc->plane;
2369 intel_prepare_page_flip(dev, plane);
2370 intel_finish_page_flip_plane(dev, plane);
2373 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2374 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2376 mutex_lock(&crtc->mutex);
2378 * FIXME: Once we have proper support for primary planes (and
2379 * disabling them without disabling the entire crtc) allow again
2380 * a NULL crtc->primary->fb.
2382 if (intel_crtc->active && crtc->primary->fb)
2383 dev_priv->display.update_primary_plane(crtc,
2387 mutex_unlock(&crtc->mutex);
2392 intel_finish_fb(struct drm_framebuffer *old_fb)
2394 struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
2395 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2396 bool was_interruptible = dev_priv->mm.interruptible;
2399 /* Big Hammer, we also need to ensure that any pending
2400 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2401 * current scanout is retired before unpinning the old
2404 * This should only fail upon a hung GPU, in which case we
2405 * can safely continue.
2407 dev_priv->mm.interruptible = false;
2408 ret = i915_gem_object_finish_gpu(obj);
2409 dev_priv->mm.interruptible = was_interruptible;
2414 static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
2416 struct drm_device *dev = crtc->dev;
2417 struct drm_i915_private *dev_priv = dev->dev_private;
2418 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2419 unsigned long flags;
2422 if (i915_reset_in_progress(&dev_priv->gpu_error) ||
2423 intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
2426 spin_lock_irqsave(&dev->event_lock, flags);
2427 pending = to_intel_crtc(crtc)->unpin_work != NULL;
2428 spin_unlock_irqrestore(&dev->event_lock, flags);
2434 intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
2435 struct drm_framebuffer *fb)
2437 struct drm_device *dev = crtc->dev;
2438 struct drm_i915_private *dev_priv = dev->dev_private;
2439 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2440 struct drm_framebuffer *old_fb;
2443 if (intel_crtc_has_pending_flip(crtc)) {
2444 DRM_ERROR("pipe is still busy with an old pageflip\n");
2450 DRM_ERROR("No FB bound\n");
2454 if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
2455 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2456 plane_name(intel_crtc->plane),
2457 INTEL_INFO(dev)->num_pipes);
2461 mutex_lock(&dev->struct_mutex);
2462 ret = intel_pin_and_fence_fb_obj(dev,
2463 to_intel_framebuffer(fb)->obj,
2465 mutex_unlock(&dev->struct_mutex);
2467 DRM_ERROR("pin & fence failed\n");
2472 * Update pipe size and adjust fitter if needed: the reason for this is
2473 * that in compute_mode_changes we check the native mode (not the pfit
2474 * mode) to see if we can flip rather than do a full mode set. In the
2475 * fastboot case, we'll flip, but if we don't update the pipesrc and
2476 * pfit state, we'll end up with a big fb scanned out into the wrong
2479 * To fix this properly, we need to hoist the checks up into
2480 * compute_mode_changes (or above), check the actual pfit state and
2481 * whether the platform allows pfit disable with pipe active, and only
2482 * then update the pipesrc and pfit state, even on the flip path.
2484 if (i915.fastboot) {
2485 const struct drm_display_mode *adjusted_mode =
2486 &intel_crtc->config.adjusted_mode;
2488 I915_WRITE(PIPESRC(intel_crtc->pipe),
2489 ((adjusted_mode->crtc_hdisplay - 1) << 16) |
2490 (adjusted_mode->crtc_vdisplay - 1));
2491 if (!intel_crtc->config.pch_pfit.enabled &&
2492 (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) ||
2493 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
2494 I915_WRITE(PF_CTL(intel_crtc->pipe), 0);
2495 I915_WRITE(PF_WIN_POS(intel_crtc->pipe), 0);
2496 I915_WRITE(PF_WIN_SZ(intel_crtc->pipe), 0);
2498 intel_crtc->config.pipe_src_w = adjusted_mode->crtc_hdisplay;
2499 intel_crtc->config.pipe_src_h = adjusted_mode->crtc_vdisplay;
2502 ret = dev_priv->display.update_primary_plane(crtc, fb, x, y);
2504 mutex_lock(&dev->struct_mutex);
2505 intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);
2506 mutex_unlock(&dev->struct_mutex);
2507 DRM_ERROR("failed to update base address\n");
2511 old_fb = crtc->primary->fb;
2512 crtc->primary->fb = fb;
2517 if (intel_crtc->active && old_fb != fb)
2518 intel_wait_for_vblank(dev, intel_crtc->pipe);
2519 mutex_lock(&dev->struct_mutex);
2520 intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
2521 mutex_unlock(&dev->struct_mutex);
2524 mutex_lock(&dev->struct_mutex);
2525 intel_update_fbc(dev);
2526 intel_edp_psr_update(dev);
2527 mutex_unlock(&dev->struct_mutex);
2532 static void intel_fdi_normal_train(struct drm_crtc *crtc)
2534 struct drm_device *dev = crtc->dev;
2535 struct drm_i915_private *dev_priv = dev->dev_private;
2536 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2537 int pipe = intel_crtc->pipe;
2540 /* enable normal train */
2541 reg = FDI_TX_CTL(pipe);
2542 temp = I915_READ(reg);
2543 if (IS_IVYBRIDGE(dev)) {
2544 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2545 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
2547 temp &= ~FDI_LINK_TRAIN_NONE;
2548 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
2550 I915_WRITE(reg, temp);
2552 reg = FDI_RX_CTL(pipe);
2553 temp = I915_READ(reg);
2554 if (HAS_PCH_CPT(dev)) {
2555 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2556 temp |= FDI_LINK_TRAIN_NORMAL_CPT;
2558 temp &= ~FDI_LINK_TRAIN_NONE;
2559 temp |= FDI_LINK_TRAIN_NONE;
2561 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
2563 /* wait one idle pattern time */
2567 /* IVB wants error correction enabled */
2568 if (IS_IVYBRIDGE(dev))
2569 I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
2570 FDI_FE_ERRC_ENABLE);
2573 static bool pipe_has_enabled_pch(struct intel_crtc *crtc)
2575 return crtc->base.enabled && crtc->active &&
2576 crtc->config.has_pch_encoder;
2579 static void ivb_modeset_global_resources(struct drm_device *dev)
2581 struct drm_i915_private *dev_priv = dev->dev_private;
2582 struct intel_crtc *pipe_B_crtc =
2583 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
2584 struct intel_crtc *pipe_C_crtc =
2585 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]);
2589 * When everything is off disable fdi C so that we could enable fdi B
2590 * with all lanes. Note that we don't care about enabled pipes without
2591 * an enabled pch encoder.
2593 if (!pipe_has_enabled_pch(pipe_B_crtc) &&
2594 !pipe_has_enabled_pch(pipe_C_crtc)) {
2595 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
2596 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
2598 temp = I915_READ(SOUTH_CHICKEN1);
2599 temp &= ~FDI_BC_BIFURCATION_SELECT;
2600 DRM_DEBUG_KMS("disabling fdi C rx\n");
2601 I915_WRITE(SOUTH_CHICKEN1, temp);
2605 /* The FDI link training functions for ILK/Ibexpeak. */
2606 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
2608 struct drm_device *dev = crtc->dev;
2609 struct drm_i915_private *dev_priv = dev->dev_private;
2610 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2611 int pipe = intel_crtc->pipe;
2612 int plane = intel_crtc->plane;
2613 u32 reg, temp, tries;
2615 /* FDI needs bits from pipe & plane first */
2616 assert_pipe_enabled(dev_priv, pipe);
2617 assert_plane_enabled(dev_priv, plane);
2619 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2621 reg = FDI_RX_IMR(pipe);
2622 temp = I915_READ(reg);
2623 temp &= ~FDI_RX_SYMBOL_LOCK;
2624 temp &= ~FDI_RX_BIT_LOCK;
2625 I915_WRITE(reg, temp);
2629 /* enable CPU FDI TX and PCH FDI RX */
2630 reg = FDI_TX_CTL(pipe);
2631 temp = I915_READ(reg);
2632 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2633 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2634 temp &= ~FDI_LINK_TRAIN_NONE;
2635 temp |= FDI_LINK_TRAIN_PATTERN_1;
2636 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2638 reg = FDI_RX_CTL(pipe);
2639 temp = I915_READ(reg);
2640 temp &= ~FDI_LINK_TRAIN_NONE;
2641 temp |= FDI_LINK_TRAIN_PATTERN_1;
2642 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2647 /* Ironlake workaround, enable clock pointer after FDI enable*/
2648 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2649 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
2650 FDI_RX_PHASE_SYNC_POINTER_EN);
2652 reg = FDI_RX_IIR(pipe);
2653 for (tries = 0; tries < 5; tries++) {
2654 temp = I915_READ(reg);
2655 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2657 if ((temp & FDI_RX_BIT_LOCK)) {
2658 DRM_DEBUG_KMS("FDI train 1 done.\n");
2659 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2664 DRM_ERROR("FDI train 1 fail!\n");
2667 reg = FDI_TX_CTL(pipe);
2668 temp = I915_READ(reg);
2669 temp &= ~FDI_LINK_TRAIN_NONE;
2670 temp |= FDI_LINK_TRAIN_PATTERN_2;
2671 I915_WRITE(reg, temp);
2673 reg = FDI_RX_CTL(pipe);
2674 temp = I915_READ(reg);
2675 temp &= ~FDI_LINK_TRAIN_NONE;
2676 temp |= FDI_LINK_TRAIN_PATTERN_2;
2677 I915_WRITE(reg, temp);
2682 reg = FDI_RX_IIR(pipe);
2683 for (tries = 0; tries < 5; tries++) {
2684 temp = I915_READ(reg);
2685 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2687 if (temp & FDI_RX_SYMBOL_LOCK) {
2688 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2689 DRM_DEBUG_KMS("FDI train 2 done.\n");
2694 DRM_ERROR("FDI train 2 fail!\n");
2696 DRM_DEBUG_KMS("FDI train done\n");
2700 static const int snb_b_fdi_train_param[] = {
2701 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
2702 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
2703 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
2704 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
2707 /* The FDI link training functions for SNB/Cougarpoint. */
2708 static void gen6_fdi_link_train(struct drm_crtc *crtc)
2710 struct drm_device *dev = crtc->dev;
2711 struct drm_i915_private *dev_priv = dev->dev_private;
2712 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2713 int pipe = intel_crtc->pipe;
2714 u32 reg, temp, i, retry;
2716 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2718 reg = FDI_RX_IMR(pipe);
2719 temp = I915_READ(reg);
2720 temp &= ~FDI_RX_SYMBOL_LOCK;
2721 temp &= ~FDI_RX_BIT_LOCK;
2722 I915_WRITE(reg, temp);
2727 /* enable CPU FDI TX and PCH FDI RX */
2728 reg = FDI_TX_CTL(pipe);
2729 temp = I915_READ(reg);
2730 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2731 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2732 temp &= ~FDI_LINK_TRAIN_NONE;
2733 temp |= FDI_LINK_TRAIN_PATTERN_1;
2734 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2736 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
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 if (HAS_PCH_CPT(dev)) {
2745 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2746 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2748 temp &= ~FDI_LINK_TRAIN_NONE;
2749 temp |= FDI_LINK_TRAIN_PATTERN_1;
2751 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2756 for (i = 0; i < 4; i++) {
2757 reg = FDI_TX_CTL(pipe);
2758 temp = I915_READ(reg);
2759 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2760 temp |= snb_b_fdi_train_param[i];
2761 I915_WRITE(reg, temp);
2766 for (retry = 0; retry < 5; retry++) {
2767 reg = FDI_RX_IIR(pipe);
2768 temp = I915_READ(reg);
2769 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2770 if (temp & FDI_RX_BIT_LOCK) {
2771 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2772 DRM_DEBUG_KMS("FDI train 1 done.\n");
2781 DRM_ERROR("FDI train 1 fail!\n");
2784 reg = FDI_TX_CTL(pipe);
2785 temp = I915_READ(reg);
2786 temp &= ~FDI_LINK_TRAIN_NONE;
2787 temp |= FDI_LINK_TRAIN_PATTERN_2;
2789 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2791 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2793 I915_WRITE(reg, temp);
2795 reg = FDI_RX_CTL(pipe);
2796 temp = I915_READ(reg);
2797 if (HAS_PCH_CPT(dev)) {
2798 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2799 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2801 temp &= ~FDI_LINK_TRAIN_NONE;
2802 temp |= FDI_LINK_TRAIN_PATTERN_2;
2804 I915_WRITE(reg, temp);
2809 for (i = 0; i < 4; i++) {
2810 reg = FDI_TX_CTL(pipe);
2811 temp = I915_READ(reg);
2812 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2813 temp |= snb_b_fdi_train_param[i];
2814 I915_WRITE(reg, temp);
2819 for (retry = 0; retry < 5; retry++) {
2820 reg = FDI_RX_IIR(pipe);
2821 temp = I915_READ(reg);
2822 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2823 if (temp & FDI_RX_SYMBOL_LOCK) {
2824 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2825 DRM_DEBUG_KMS("FDI train 2 done.\n");
2834 DRM_ERROR("FDI train 2 fail!\n");
2836 DRM_DEBUG_KMS("FDI train done.\n");
2839 /* Manual link training for Ivy Bridge A0 parts */
2840 static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
2842 struct drm_device *dev = crtc->dev;
2843 struct drm_i915_private *dev_priv = dev->dev_private;
2844 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2845 int pipe = intel_crtc->pipe;
2846 u32 reg, temp, i, j;
2848 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2850 reg = FDI_RX_IMR(pipe);
2851 temp = I915_READ(reg);
2852 temp &= ~FDI_RX_SYMBOL_LOCK;
2853 temp &= ~FDI_RX_BIT_LOCK;
2854 I915_WRITE(reg, temp);
2859 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2860 I915_READ(FDI_RX_IIR(pipe)));
2862 /* Try each vswing and preemphasis setting twice before moving on */
2863 for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) {
2864 /* disable first in case we need to retry */
2865 reg = FDI_TX_CTL(pipe);
2866 temp = I915_READ(reg);
2867 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
2868 temp &= ~FDI_TX_ENABLE;
2869 I915_WRITE(reg, temp);
2871 reg = FDI_RX_CTL(pipe);
2872 temp = I915_READ(reg);
2873 temp &= ~FDI_LINK_TRAIN_AUTO;
2874 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2875 temp &= ~FDI_RX_ENABLE;
2876 I915_WRITE(reg, temp);
2878 /* enable CPU FDI TX and PCH FDI RX */
2879 reg = FDI_TX_CTL(pipe);
2880 temp = I915_READ(reg);
2881 temp &= ~FDI_DP_PORT_WIDTH_MASK;
2882 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2883 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
2884 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2885 temp |= snb_b_fdi_train_param[j/2];
2886 temp |= FDI_COMPOSITE_SYNC;
2887 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2889 I915_WRITE(FDI_RX_MISC(pipe),
2890 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2892 reg = FDI_RX_CTL(pipe);
2893 temp = I915_READ(reg);
2894 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2895 temp |= FDI_COMPOSITE_SYNC;
2896 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2899 udelay(1); /* should be 0.5us */
2901 for (i = 0; i < 4; i++) {
2902 reg = FDI_RX_IIR(pipe);
2903 temp = I915_READ(reg);
2904 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2906 if (temp & FDI_RX_BIT_LOCK ||
2907 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
2908 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2909 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
2913 udelay(1); /* should be 0.5us */
2916 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2);
2921 reg = FDI_TX_CTL(pipe);
2922 temp = I915_READ(reg);
2923 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2924 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
2925 I915_WRITE(reg, temp);
2927 reg = FDI_RX_CTL(pipe);
2928 temp = I915_READ(reg);
2929 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2930 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2931 I915_WRITE(reg, temp);
2934 udelay(2); /* should be 1.5us */
2936 for (i = 0; i < 4; i++) {
2937 reg = FDI_RX_IIR(pipe);
2938 temp = I915_READ(reg);
2939 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2941 if (temp & FDI_RX_SYMBOL_LOCK ||
2942 (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) {
2943 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2944 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
2948 udelay(2); /* should be 1.5us */
2951 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2);
2955 DRM_DEBUG_KMS("FDI train done.\n");
2958 static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
2960 struct drm_device *dev = intel_crtc->base.dev;
2961 struct drm_i915_private *dev_priv = dev->dev_private;
2962 int pipe = intel_crtc->pipe;
2966 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2967 reg = FDI_RX_CTL(pipe);
2968 temp = I915_READ(reg);
2969 temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
2970 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
2971 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2972 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
2977 /* Switch from Rawclk to PCDclk */
2978 temp = I915_READ(reg);
2979 I915_WRITE(reg, temp | FDI_PCDCLK);
2984 /* Enable CPU FDI TX PLL, always on for Ironlake */
2985 reg = FDI_TX_CTL(pipe);
2986 temp = I915_READ(reg);
2987 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
2988 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
2995 static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
2997 struct drm_device *dev = intel_crtc->base.dev;
2998 struct drm_i915_private *dev_priv = dev->dev_private;
2999 int pipe = intel_crtc->pipe;
3002 /* Switch from PCDclk to Rawclk */
3003 reg = FDI_RX_CTL(pipe);
3004 temp = I915_READ(reg);
3005 I915_WRITE(reg, temp & ~FDI_PCDCLK);
3007 /* Disable CPU FDI TX PLL */
3008 reg = FDI_TX_CTL(pipe);
3009 temp = I915_READ(reg);
3010 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
3015 reg = FDI_RX_CTL(pipe);
3016 temp = I915_READ(reg);
3017 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
3019 /* Wait for the clocks to turn off. */
3024 static void ironlake_fdi_disable(struct drm_crtc *crtc)
3026 struct drm_device *dev = crtc->dev;
3027 struct drm_i915_private *dev_priv = dev->dev_private;
3028 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3029 int pipe = intel_crtc->pipe;
3032 /* disable CPU FDI tx and PCH FDI rx */
3033 reg = FDI_TX_CTL(pipe);
3034 temp = I915_READ(reg);
3035 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
3038 reg = FDI_RX_CTL(pipe);
3039 temp = I915_READ(reg);
3040 temp &= ~(0x7 << 16);
3041 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
3042 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
3047 /* Ironlake workaround, disable clock pointer after downing FDI */
3048 if (HAS_PCH_IBX(dev)) {
3049 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
3052 /* still set train pattern 1 */
3053 reg = FDI_TX_CTL(pipe);
3054 temp = I915_READ(reg);
3055 temp &= ~FDI_LINK_TRAIN_NONE;
3056 temp |= FDI_LINK_TRAIN_PATTERN_1;
3057 I915_WRITE(reg, temp);
3059 reg = FDI_RX_CTL(pipe);
3060 temp = I915_READ(reg);
3061 if (HAS_PCH_CPT(dev)) {
3062 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
3063 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
3065 temp &= ~FDI_LINK_TRAIN_NONE;
3066 temp |= FDI_LINK_TRAIN_PATTERN_1;
3068 /* BPC in FDI rx is consistent with that in PIPECONF */
3069 temp &= ~(0x07 << 16);
3070 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
3071 I915_WRITE(reg, temp);
3077 bool intel_has_pending_fb_unpin(struct drm_device *dev)
3079 struct intel_crtc *crtc;
3081 /* Note that we don't need to be called with mode_config.lock here
3082 * as our list of CRTC objects is static for the lifetime of the
3083 * device and so cannot disappear as we iterate. Similarly, we can
3084 * happily treat the predicates as racy, atomic checks as userspace
3085 * cannot claim and pin a new fb without at least acquring the
3086 * struct_mutex and so serialising with us.
3088 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
3089 if (atomic_read(&crtc->unpin_work_count) == 0)
3092 if (crtc->unpin_work)
3093 intel_wait_for_vblank(dev, crtc->pipe);
3101 static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
3103 struct drm_device *dev = crtc->dev;
3104 struct drm_i915_private *dev_priv = dev->dev_private;
3106 if (crtc->primary->fb == NULL)
3109 WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
3111 wait_event(dev_priv->pending_flip_queue,
3112 !intel_crtc_has_pending_flip(crtc));
3114 mutex_lock(&dev->struct_mutex);
3115 intel_finish_fb(crtc->primary->fb);
3116 mutex_unlock(&dev->struct_mutex);
3119 /* Program iCLKIP clock to the desired frequency */
3120 static void lpt_program_iclkip(struct drm_crtc *crtc)
3122 struct drm_device *dev = crtc->dev;
3123 struct drm_i915_private *dev_priv = dev->dev_private;
3124 int clock = to_intel_crtc(crtc)->config.adjusted_mode.crtc_clock;
3125 u32 divsel, phaseinc, auxdiv, phasedir = 0;
3128 mutex_lock(&dev_priv->dpio_lock);
3130 /* It is necessary to ungate the pixclk gate prior to programming
3131 * the divisors, and gate it back when it is done.
3133 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
3135 /* Disable SSCCTL */
3136 intel_sbi_write(dev_priv, SBI_SSCCTL6,
3137 intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) |
3141 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
3142 if (clock == 20000) {
3147 /* The iCLK virtual clock root frequency is in MHz,
3148 * but the adjusted_mode->crtc_clock in in KHz. To get the
3149 * divisors, it is necessary to divide one by another, so we
3150 * convert the virtual clock precision to KHz here for higher
3153 u32 iclk_virtual_root_freq = 172800 * 1000;
3154 u32 iclk_pi_range = 64;
3155 u32 desired_divisor, msb_divisor_value, pi_value;
3157 desired_divisor = (iclk_virtual_root_freq / clock);
3158 msb_divisor_value = desired_divisor / iclk_pi_range;
3159 pi_value = desired_divisor % iclk_pi_range;
3162 divsel = msb_divisor_value - 2;
3163 phaseinc = pi_value;
3166 /* This should not happen with any sane values */
3167 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
3168 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
3169 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
3170 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
3172 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3179 /* Program SSCDIVINTPHASE6 */
3180 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
3181 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
3182 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
3183 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
3184 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
3185 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
3186 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
3187 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
3189 /* Program SSCAUXDIV */
3190 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
3191 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3192 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
3193 intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
3195 /* Enable modulator and associated divider */
3196 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
3197 temp &= ~SBI_SSCCTL_DISABLE;
3198 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
3200 /* Wait for initialization time */
3203 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
3205 mutex_unlock(&dev_priv->dpio_lock);
3208 static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc,
3209 enum pipe pch_transcoder)
3211 struct drm_device *dev = crtc->base.dev;
3212 struct drm_i915_private *dev_priv = dev->dev_private;
3213 enum transcoder cpu_transcoder = crtc->config.cpu_transcoder;
3215 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder),
3216 I915_READ(HTOTAL(cpu_transcoder)));
3217 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder),
3218 I915_READ(HBLANK(cpu_transcoder)));
3219 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder),
3220 I915_READ(HSYNC(cpu_transcoder)));
3222 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder),
3223 I915_READ(VTOTAL(cpu_transcoder)));
3224 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder),
3225 I915_READ(VBLANK(cpu_transcoder)));
3226 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder),
3227 I915_READ(VSYNC(cpu_transcoder)));
3228 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder),
3229 I915_READ(VSYNCSHIFT(cpu_transcoder)));
3232 static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
3234 struct drm_i915_private *dev_priv = dev->dev_private;
3237 temp = I915_READ(SOUTH_CHICKEN1);
3238 if (temp & FDI_BC_BIFURCATION_SELECT)
3241 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
3242 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
3244 temp |= FDI_BC_BIFURCATION_SELECT;
3245 DRM_DEBUG_KMS("enabling fdi C rx\n");
3246 I915_WRITE(SOUTH_CHICKEN1, temp);
3247 POSTING_READ(SOUTH_CHICKEN1);
3250 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
3252 struct drm_device *dev = intel_crtc->base.dev;
3253 struct drm_i915_private *dev_priv = dev->dev_private;
3255 switch (intel_crtc->pipe) {
3259 if (intel_crtc->config.fdi_lanes > 2)
3260 WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
3262 cpt_enable_fdi_bc_bifurcation(dev);
3266 cpt_enable_fdi_bc_bifurcation(dev);
3275 * Enable PCH resources required for PCH ports:
3277 * - FDI training & RX/TX
3278 * - update transcoder timings
3279 * - DP transcoding bits
3282 static void ironlake_pch_enable(struct drm_crtc *crtc)
3284 struct drm_device *dev = crtc->dev;
3285 struct drm_i915_private *dev_priv = dev->dev_private;
3286 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3287 int pipe = intel_crtc->pipe;
3290 assert_pch_transcoder_disabled(dev_priv, pipe);
3292 if (IS_IVYBRIDGE(dev))
3293 ivybridge_update_fdi_bc_bifurcation(intel_crtc);
3295 /* Write the TU size bits before fdi link training, so that error
3296 * detection works. */
3297 I915_WRITE(FDI_RX_TUSIZE1(pipe),
3298 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
3300 /* For PCH output, training FDI link */
3301 dev_priv->display.fdi_link_train(crtc);
3303 /* We need to program the right clock selection before writing the pixel
3304 * mutliplier into the DPLL. */
3305 if (HAS_PCH_CPT(dev)) {
3308 temp = I915_READ(PCH_DPLL_SEL);
3309 temp |= TRANS_DPLL_ENABLE(pipe);
3310 sel = TRANS_DPLLB_SEL(pipe);
3311 if (intel_crtc->config.shared_dpll == DPLL_ID_PCH_PLL_B)
3315 I915_WRITE(PCH_DPLL_SEL, temp);
3318 /* XXX: pch pll's can be enabled any time before we enable the PCH
3319 * transcoder, and we actually should do this to not upset any PCH
3320 * transcoder that already use the clock when we share it.
3322 * Note that enable_shared_dpll tries to do the right thing, but
3323 * get_shared_dpll unconditionally resets the pll - we need that to have
3324 * the right LVDS enable sequence. */
3325 ironlake_enable_shared_dpll(intel_crtc);
3327 /* set transcoder timing, panel must allow it */
3328 assert_panel_unlocked(dev_priv, pipe);
3329 ironlake_pch_transcoder_set_timings(intel_crtc, pipe);
3331 intel_fdi_normal_train(crtc);
3333 /* For PCH DP, enable TRANS_DP_CTL */
3334 if (HAS_PCH_CPT(dev) &&
3335 (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
3336 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
3337 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
3338 reg = TRANS_DP_CTL(pipe);
3339 temp = I915_READ(reg);
3340 temp &= ~(TRANS_DP_PORT_SEL_MASK |
3341 TRANS_DP_SYNC_MASK |
3343 temp |= (TRANS_DP_OUTPUT_ENABLE |
3344 TRANS_DP_ENH_FRAMING);
3345 temp |= bpc << 9; /* same format but at 11:9 */
3347 if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
3348 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
3349 if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
3350 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
3352 switch (intel_trans_dp_port_sel(crtc)) {
3354 temp |= TRANS_DP_PORT_SEL_B;
3357 temp |= TRANS_DP_PORT_SEL_C;
3360 temp |= TRANS_DP_PORT_SEL_D;
3366 I915_WRITE(reg, temp);
3369 ironlake_enable_pch_transcoder(dev_priv, pipe);
3372 static void lpt_pch_enable(struct drm_crtc *crtc)
3374 struct drm_device *dev = crtc->dev;
3375 struct drm_i915_private *dev_priv = dev->dev_private;
3376 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3377 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
3379 assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
3381 lpt_program_iclkip(crtc);
3383 /* Set transcoder timing. */
3384 ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A);
3386 lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
3389 static void intel_put_shared_dpll(struct intel_crtc *crtc)
3391 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
3396 if (pll->refcount == 0) {
3397 WARN(1, "bad %s refcount\n", pll->name);
3401 if (--pll->refcount == 0) {
3403 WARN_ON(pll->active);
3406 crtc->config.shared_dpll = DPLL_ID_PRIVATE;
3409 static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc)
3411 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
3412 struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
3413 enum intel_dpll_id i;
3416 DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
3417 crtc->base.base.id, pll->name);
3418 intel_put_shared_dpll(crtc);
3421 if (HAS_PCH_IBX(dev_priv->dev)) {
3422 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3423 i = (enum intel_dpll_id) crtc->pipe;
3424 pll = &dev_priv->shared_dplls[i];
3426 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
3427 crtc->base.base.id, pll->name);
3432 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3433 pll = &dev_priv->shared_dplls[i];
3435 /* Only want to check enabled timings first */
3436 if (pll->refcount == 0)
3439 if (memcmp(&crtc->config.dpll_hw_state, &pll->hw_state,
3440 sizeof(pll->hw_state)) == 0) {
3441 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
3443 pll->name, pll->refcount, pll->active);
3449 /* Ok no matching timings, maybe there's a free one? */
3450 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3451 pll = &dev_priv->shared_dplls[i];
3452 if (pll->refcount == 0) {
3453 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
3454 crtc->base.base.id, pll->name);
3462 crtc->config.shared_dpll = i;
3463 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name,
3464 pipe_name(crtc->pipe));
3466 if (pll->active == 0) {
3467 memcpy(&pll->hw_state, &crtc->config.dpll_hw_state,
3468 sizeof(pll->hw_state));
3470 DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
3472 assert_shared_dpll_disabled(dev_priv, pll);
3474 pll->mode_set(dev_priv, pll);
3481 static void cpt_verify_modeset(struct drm_device *dev, int pipe)
3483 struct drm_i915_private *dev_priv = dev->dev_private;
3484 int dslreg = PIPEDSL(pipe);
3487 temp = I915_READ(dslreg);
3489 if (wait_for(I915_READ(dslreg) != temp, 5)) {
3490 if (wait_for(I915_READ(dslreg) != temp, 5))
3491 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe));
3495 static void ironlake_pfit_enable(struct intel_crtc *crtc)
3497 struct drm_device *dev = crtc->base.dev;
3498 struct drm_i915_private *dev_priv = dev->dev_private;
3499 int pipe = crtc->pipe;
3501 if (crtc->config.pch_pfit.enabled) {
3502 /* Force use of hard-coded filter coefficients
3503 * as some pre-programmed values are broken,
3506 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
3507 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
3508 PF_PIPE_SEL_IVB(pipe));
3510 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
3511 I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos);
3512 I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size);
3516 static void intel_enable_planes(struct drm_crtc *crtc)
3518 struct drm_device *dev = crtc->dev;
3519 enum pipe pipe = to_intel_crtc(crtc)->pipe;
3520 struct drm_plane *plane;
3521 struct intel_plane *intel_plane;
3523 drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) {
3524 intel_plane = to_intel_plane(plane);
3525 if (intel_plane->pipe == pipe)
3526 intel_plane_restore(&intel_plane->base);
3530 static void intel_disable_planes(struct drm_crtc *crtc)
3532 struct drm_device *dev = crtc->dev;
3533 enum pipe pipe = to_intel_crtc(crtc)->pipe;
3534 struct drm_plane *plane;
3535 struct intel_plane *intel_plane;
3537 drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) {
3538 intel_plane = to_intel_plane(plane);
3539 if (intel_plane->pipe == pipe)
3540 intel_plane_disable(&intel_plane->base);
3544 void hsw_enable_ips(struct intel_crtc *crtc)
3546 struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
3548 if (!crtc->config.ips_enabled)
3551 /* We can only enable IPS after we enable a plane and wait for a vblank.
3552 * We guarantee that the plane is enabled by calling intel_enable_ips
3553 * only after intel_enable_plane. And intel_enable_plane already waits
3554 * for a vblank, so all we need to do here is to enable the IPS bit. */
3555 assert_plane_enabled(dev_priv, crtc->plane);
3556 if (IS_BROADWELL(crtc->base.dev)) {
3557 mutex_lock(&dev_priv->rps.hw_lock);
3558 WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0xc0000000));
3559 mutex_unlock(&dev_priv->rps.hw_lock);
3560 /* Quoting Art Runyan: "its not safe to expect any particular
3561 * value in IPS_CTL bit 31 after enabling IPS through the
3562 * mailbox." Moreover, the mailbox may return a bogus state,
3563 * so we need to just enable it and continue on.
3566 I915_WRITE(IPS_CTL, IPS_ENABLE);
3567 /* The bit only becomes 1 in the next vblank, so this wait here
3568 * is essentially intel_wait_for_vblank. If we don't have this
3569 * and don't wait for vblanks until the end of crtc_enable, then
3570 * the HW state readout code will complain that the expected
3571 * IPS_CTL value is not the one we read. */
3572 if (wait_for(I915_READ_NOTRACE(IPS_CTL) & IPS_ENABLE, 50))
3573 DRM_ERROR("Timed out waiting for IPS enable\n");
3577 void hsw_disable_ips(struct intel_crtc *crtc)
3579 struct drm_device *dev = crtc->base.dev;
3580 struct drm_i915_private *dev_priv = dev->dev_private;
3582 if (!crtc->config.ips_enabled)
3585 assert_plane_enabled(dev_priv, crtc->plane);
3586 if (IS_BROADWELL(crtc->base.dev)) {
3587 mutex_lock(&dev_priv->rps.hw_lock);
3588 WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0));
3589 mutex_unlock(&dev_priv->rps.hw_lock);
3591 I915_WRITE(IPS_CTL, 0);
3592 POSTING_READ(IPS_CTL);
3595 /* We need to wait for a vblank before we can disable the plane. */
3596 intel_wait_for_vblank(dev, crtc->pipe);
3599 /** Loads the palette/gamma unit for the CRTC with the prepared values */
3600 static void intel_crtc_load_lut(struct drm_crtc *crtc)
3602 struct drm_device *dev = crtc->dev;
3603 struct drm_i915_private *dev_priv = dev->dev_private;
3604 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3605 enum pipe pipe = intel_crtc->pipe;
3606 int palreg = PALETTE(pipe);
3608 bool reenable_ips = false;
3610 /* The clocks have to be on to load the palette. */
3611 if (!crtc->enabled || !intel_crtc->active)
3614 if (!HAS_PCH_SPLIT(dev_priv->dev)) {
3615 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI))
3616 assert_dsi_pll_enabled(dev_priv);
3618 assert_pll_enabled(dev_priv, pipe);
3621 /* use legacy palette for Ironlake */
3622 if (HAS_PCH_SPLIT(dev))
3623 palreg = LGC_PALETTE(pipe);
3625 /* Workaround : Do not read or write the pipe palette/gamma data while
3626 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
3628 if (IS_HASWELL(dev) && intel_crtc->config.ips_enabled &&
3629 ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) ==
3630 GAMMA_MODE_MODE_SPLIT)) {
3631 hsw_disable_ips(intel_crtc);
3632 reenable_ips = true;
3635 for (i = 0; i < 256; i++) {
3636 I915_WRITE(palreg + 4 * i,
3637 (intel_crtc->lut_r[i] << 16) |
3638 (intel_crtc->lut_g[i] << 8) |
3639 intel_crtc->lut_b[i]);
3643 hsw_enable_ips(intel_crtc);
3646 static void ironlake_crtc_enable(struct drm_crtc *crtc)
3648 struct drm_device *dev = crtc->dev;
3649 struct drm_i915_private *dev_priv = dev->dev_private;
3650 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3651 struct intel_encoder *encoder;
3652 int pipe = intel_crtc->pipe;
3653 int plane = intel_crtc->plane;
3655 WARN_ON(!crtc->enabled);
3657 if (intel_crtc->active)
3660 intel_crtc->active = true;
3662 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3663 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3665 for_each_encoder_on_crtc(dev, crtc, encoder)
3666 if (encoder->pre_enable)
3667 encoder->pre_enable(encoder);
3669 if (intel_crtc->config.has_pch_encoder) {
3670 /* Note: FDI PLL enabling _must_ be done before we enable the
3671 * cpu pipes, hence this is separate from all the other fdi/pch
3673 ironlake_fdi_pll_enable(intel_crtc);
3675 assert_fdi_tx_disabled(dev_priv, pipe);
3676 assert_fdi_rx_disabled(dev_priv, pipe);
3679 ironlake_pfit_enable(intel_crtc);
3682 * On ILK+ LUT must be loaded before the pipe is running but with
3685 intel_crtc_load_lut(crtc);
3687 intel_update_watermarks(crtc);
3688 intel_enable_pipe(intel_crtc);
3689 intel_enable_primary_hw_plane(dev_priv, plane, pipe);
3690 intel_enable_planes(crtc);
3691 intel_crtc_update_cursor(crtc, true);
3693 if (intel_crtc->config.has_pch_encoder)
3694 ironlake_pch_enable(crtc);
3696 mutex_lock(&dev->struct_mutex);
3697 intel_update_fbc(dev);
3698 mutex_unlock(&dev->struct_mutex);
3700 for_each_encoder_on_crtc(dev, crtc, encoder)
3701 encoder->enable(encoder);
3703 if (HAS_PCH_CPT(dev))
3704 cpt_verify_modeset(dev, intel_crtc->pipe);
3707 * There seems to be a race in PCH platform hw (at least on some
3708 * outputs) where an enabled pipe still completes any pageflip right
3709 * away (as if the pipe is off) instead of waiting for vblank. As soon
3710 * as the first vblank happend, everything works as expected. Hence just
3711 * wait for one vblank before returning to avoid strange things
3714 intel_wait_for_vblank(dev, intel_crtc->pipe);
3717 /* IPS only exists on ULT machines and is tied to pipe A. */
3718 static bool hsw_crtc_supports_ips(struct intel_crtc *crtc)
3720 return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A;
3723 static void haswell_crtc_enable_planes(struct drm_crtc *crtc)
3725 struct drm_device *dev = crtc->dev;
3726 struct drm_i915_private *dev_priv = dev->dev_private;
3727 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3728 int pipe = intel_crtc->pipe;
3729 int plane = intel_crtc->plane;
3731 intel_enable_primary_hw_plane(dev_priv, plane, pipe);
3732 intel_enable_planes(crtc);
3733 intel_crtc_update_cursor(crtc, true);
3735 hsw_enable_ips(intel_crtc);
3737 mutex_lock(&dev->struct_mutex);
3738 intel_update_fbc(dev);
3739 mutex_unlock(&dev->struct_mutex);
3742 static void haswell_crtc_disable_planes(struct drm_crtc *crtc)
3744 struct drm_device *dev = crtc->dev;
3745 struct drm_i915_private *dev_priv = dev->dev_private;
3746 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3747 int pipe = intel_crtc->pipe;
3748 int plane = intel_crtc->plane;
3750 intel_crtc_wait_for_pending_flips(crtc);
3751 drm_vblank_off(dev, pipe);
3753 /* FBC must be disabled before disabling the plane on HSW. */
3754 if (dev_priv->fbc.plane == plane)
3755 intel_disable_fbc(dev);
3757 hsw_disable_ips(intel_crtc);
3759 intel_crtc_update_cursor(crtc, false);
3760 intel_disable_planes(crtc);
3761 intel_disable_primary_hw_plane(dev_priv, plane, pipe);
3765 * This implements the workaround described in the "notes" section of the mode
3766 * set sequence documentation. When going from no pipes or single pipe to
3767 * multiple pipes, and planes are enabled after the pipe, we need to wait at
3768 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
3770 static void haswell_mode_set_planes_workaround(struct intel_crtc *crtc)
3772 struct drm_device *dev = crtc->base.dev;
3773 struct intel_crtc *crtc_it, *other_active_crtc = NULL;
3775 /* We want to get the other_active_crtc only if there's only 1 other
3777 list_for_each_entry(crtc_it, &dev->mode_config.crtc_list, base.head) {
3778 if (!crtc_it->active || crtc_it == crtc)
3781 if (other_active_crtc)
3784 other_active_crtc = crtc_it;
3786 if (!other_active_crtc)
3789 intel_wait_for_vblank(dev, other_active_crtc->pipe);
3790 intel_wait_for_vblank(dev, other_active_crtc->pipe);
3793 static void haswell_crtc_enable(struct drm_crtc *crtc)
3795 struct drm_device *dev = crtc->dev;
3796 struct drm_i915_private *dev_priv = dev->dev_private;
3797 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3798 struct intel_encoder *encoder;
3799 int pipe = intel_crtc->pipe;
3801 WARN_ON(!crtc->enabled);
3803 if (intel_crtc->active)
3806 intel_crtc->active = true;
3808 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
3809 if (intel_crtc->config.has_pch_encoder)
3810 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3812 if (intel_crtc->config.has_pch_encoder)
3813 dev_priv->display.fdi_link_train(crtc);
3815 for_each_encoder_on_crtc(dev, crtc, encoder)
3816 if (encoder->pre_enable)
3817 encoder->pre_enable(encoder);
3819 intel_ddi_enable_pipe_clock(intel_crtc);
3821 ironlake_pfit_enable(intel_crtc);
3824 * On ILK+ LUT must be loaded before the pipe is running but with
3827 intel_crtc_load_lut(crtc);
3829 intel_ddi_set_pipe_settings(crtc);
3830 intel_ddi_enable_transcoder_func(crtc);
3832 intel_update_watermarks(crtc);
3833 intel_enable_pipe(intel_crtc);
3835 if (intel_crtc->config.has_pch_encoder)
3836 lpt_pch_enable(crtc);
3838 for_each_encoder_on_crtc(dev, crtc, encoder) {
3839 encoder->enable(encoder);
3840 intel_opregion_notify_encoder(encoder, true);
3843 /* If we change the relative order between pipe/planes enabling, we need
3844 * to change the workaround. */
3845 haswell_mode_set_planes_workaround(intel_crtc);
3846 haswell_crtc_enable_planes(crtc);
3849 static void ironlake_pfit_disable(struct intel_crtc *crtc)
3851 struct drm_device *dev = crtc->base.dev;
3852 struct drm_i915_private *dev_priv = dev->dev_private;
3853 int pipe = crtc->pipe;
3855 /* To avoid upsetting the power well on haswell only disable the pfit if
3856 * it's in use. The hw state code will make sure we get this right. */
3857 if (crtc->config.pch_pfit.enabled) {
3858 I915_WRITE(PF_CTL(pipe), 0);
3859 I915_WRITE(PF_WIN_POS(pipe), 0);
3860 I915_WRITE(PF_WIN_SZ(pipe), 0);
3864 static void ironlake_crtc_disable(struct drm_crtc *crtc)
3866 struct drm_device *dev = crtc->dev;
3867 struct drm_i915_private *dev_priv = dev->dev_private;
3868 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3869 struct intel_encoder *encoder;
3870 int pipe = intel_crtc->pipe;
3871 int plane = intel_crtc->plane;
3875 if (!intel_crtc->active)
3878 for_each_encoder_on_crtc(dev, crtc, encoder)
3879 encoder->disable(encoder);
3881 intel_crtc_wait_for_pending_flips(crtc);
3882 drm_vblank_off(dev, pipe);
3884 if (dev_priv->fbc.plane == plane)
3885 intel_disable_fbc(dev);
3887 intel_crtc_update_cursor(crtc, false);
3888 intel_disable_planes(crtc);
3889 intel_disable_primary_hw_plane(dev_priv, plane, pipe);
3891 if (intel_crtc->config.has_pch_encoder)
3892 intel_set_pch_fifo_underrun_reporting(dev, pipe, false);
3894 intel_disable_pipe(dev_priv, pipe);
3896 ironlake_pfit_disable(intel_crtc);
3898 for_each_encoder_on_crtc(dev, crtc, encoder)
3899 if (encoder->post_disable)
3900 encoder->post_disable(encoder);
3902 if (intel_crtc->config.has_pch_encoder) {
3903 ironlake_fdi_disable(crtc);
3905 ironlake_disable_pch_transcoder(dev_priv, pipe);
3906 intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
3908 if (HAS_PCH_CPT(dev)) {
3909 /* disable TRANS_DP_CTL */
3910 reg = TRANS_DP_CTL(pipe);
3911 temp = I915_READ(reg);
3912 temp &= ~(TRANS_DP_OUTPUT_ENABLE |
3913 TRANS_DP_PORT_SEL_MASK);
3914 temp |= TRANS_DP_PORT_SEL_NONE;
3915 I915_WRITE(reg, temp);
3917 /* disable DPLL_SEL */
3918 temp = I915_READ(PCH_DPLL_SEL);
3919 temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe));
3920 I915_WRITE(PCH_DPLL_SEL, temp);
3923 /* disable PCH DPLL */
3924 intel_disable_shared_dpll(intel_crtc);
3926 ironlake_fdi_pll_disable(intel_crtc);
3929 intel_crtc->active = false;
3930 intel_update_watermarks(crtc);
3932 mutex_lock(&dev->struct_mutex);
3933 intel_update_fbc(dev);
3934 mutex_unlock(&dev->struct_mutex);
3937 static void haswell_crtc_disable(struct drm_crtc *crtc)
3939 struct drm_device *dev = crtc->dev;
3940 struct drm_i915_private *dev_priv = dev->dev_private;
3941 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3942 struct intel_encoder *encoder;
3943 int pipe = intel_crtc->pipe;
3944 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
3946 if (!intel_crtc->active)
3949 haswell_crtc_disable_planes(crtc);
3951 for_each_encoder_on_crtc(dev, crtc, encoder) {
3952 intel_opregion_notify_encoder(encoder, false);
3953 encoder->disable(encoder);
3956 if (intel_crtc->config.has_pch_encoder)
3957 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false);
3958 intel_disable_pipe(dev_priv, pipe);
3960 intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
3962 ironlake_pfit_disable(intel_crtc);
3964 intel_ddi_disable_pipe_clock(intel_crtc);
3966 for_each_encoder_on_crtc(dev, crtc, encoder)
3967 if (encoder->post_disable)
3968 encoder->post_disable(encoder);
3970 if (intel_crtc->config.has_pch_encoder) {
3971 lpt_disable_pch_transcoder(dev_priv);
3972 intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
3973 intel_ddi_fdi_disable(crtc);
3976 intel_crtc->active = false;
3977 intel_update_watermarks(crtc);
3979 mutex_lock(&dev->struct_mutex);
3980 intel_update_fbc(dev);
3981 mutex_unlock(&dev->struct_mutex);
3984 static void ironlake_crtc_off(struct drm_crtc *crtc)
3986 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3987 intel_put_shared_dpll(intel_crtc);
3990 static void haswell_crtc_off(struct drm_crtc *crtc)
3992 intel_ddi_put_crtc_pll(crtc);
3995 static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
3997 if (!enable && intel_crtc->overlay) {
3998 struct drm_device *dev = intel_crtc->base.dev;
3999 struct drm_i915_private *dev_priv = dev->dev_private;
4001 mutex_lock(&dev->struct_mutex);
4002 dev_priv->mm.interruptible = false;
4003 (void) intel_overlay_switch_off(intel_crtc->overlay);
4004 dev_priv->mm.interruptible = true;
4005 mutex_unlock(&dev->struct_mutex);
4008 /* Let userspace switch the overlay on again. In most cases userspace
4009 * has to recompute where to put it anyway.
4014 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
4015 * cursor plane briefly if not already running after enabling the display
4017 * This workaround avoids occasional blank screens when self refresh is
4021 g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe)
4023 u32 cntl = I915_READ(CURCNTR(pipe));
4025 if ((cntl & CURSOR_MODE) == 0) {
4026 u32 fw_bcl_self = I915_READ(FW_BLC_SELF);
4028 I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN);
4029 I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX);
4030 intel_wait_for_vblank(dev_priv->dev, pipe);
4031 I915_WRITE(CURCNTR(pipe), cntl);
4032 I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe)));
4033 I915_WRITE(FW_BLC_SELF, fw_bcl_self);
4037 static void i9xx_pfit_enable(struct intel_crtc *crtc)
4039 struct drm_device *dev = crtc->base.dev;
4040 struct drm_i915_private *dev_priv = dev->dev_private;
4041 struct intel_crtc_config *pipe_config = &crtc->config;
4043 if (!crtc->config.gmch_pfit.control)
4047 * The panel fitter should only be adjusted whilst the pipe is disabled,
4048 * according to register description and PRM.
4050 WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
4051 assert_pipe_disabled(dev_priv, crtc->pipe);
4053 I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios);
4054 I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control);
4056 /* Border color in case we don't scale up to the full screen. Black by
4057 * default, change to something else for debugging. */
4058 I915_WRITE(BCLRPAT(crtc->pipe), 0);
4061 #define for_each_power_domain(domain, mask) \
4062 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
4063 if ((1 << (domain)) & (mask))
4065 enum intel_display_power_domain
4066 intel_display_port_power_domain(struct intel_encoder *intel_encoder)
4068 struct drm_device *dev = intel_encoder->base.dev;
4069 struct intel_digital_port *intel_dig_port;
4071 switch (intel_encoder->type) {
4072 case INTEL_OUTPUT_UNKNOWN:
4073 /* Only DDI platforms should ever use this output type */
4074 WARN_ON_ONCE(!HAS_DDI(dev));
4075 case INTEL_OUTPUT_DISPLAYPORT:
4076 case INTEL_OUTPUT_HDMI:
4077 case INTEL_OUTPUT_EDP:
4078 intel_dig_port = enc_to_dig_port(&intel_encoder->base);
4079 switch (intel_dig_port->port) {
4081 return POWER_DOMAIN_PORT_DDI_A_4_LANES;
4083 return POWER_DOMAIN_PORT_DDI_B_4_LANES;
4085 return POWER_DOMAIN_PORT_DDI_C_4_LANES;
4087 return POWER_DOMAIN_PORT_DDI_D_4_LANES;
4090 return POWER_DOMAIN_PORT_OTHER;
4092 case INTEL_OUTPUT_ANALOG:
4093 return POWER_DOMAIN_PORT_CRT;
4094 case INTEL_OUTPUT_DSI:
4095 return POWER_DOMAIN_PORT_DSI;
4097 return POWER_DOMAIN_PORT_OTHER;
4101 static unsigned long get_crtc_power_domains(struct drm_crtc *crtc)
4103 struct drm_device *dev = crtc->dev;
4104 struct intel_encoder *intel_encoder;
4105 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4106 enum pipe pipe = intel_crtc->pipe;
4107 bool pfit_enabled = intel_crtc->config.pch_pfit.enabled;
4109 enum transcoder transcoder;
4111 transcoder = intel_pipe_to_cpu_transcoder(dev->dev_private, pipe);
4113 mask = BIT(POWER_DOMAIN_PIPE(pipe));
4114 mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder));
4116 mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe));
4118 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
4119 mask |= BIT(intel_display_port_power_domain(intel_encoder));
4124 void intel_display_set_init_power(struct drm_i915_private *dev_priv,
4127 if (dev_priv->power_domains.init_power_on == enable)
4131 intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
4133 intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
4135 dev_priv->power_domains.init_power_on = enable;
4138 static void modeset_update_crtc_power_domains(struct drm_device *dev)
4140 struct drm_i915_private *dev_priv = dev->dev_private;
4141 unsigned long pipe_domains[I915_MAX_PIPES] = { 0, };
4142 struct intel_crtc *crtc;
4145 * First get all needed power domains, then put all unneeded, to avoid
4146 * any unnecessary toggling of the power wells.
4148 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
4149 enum intel_display_power_domain domain;
4151 if (!crtc->base.enabled)
4154 pipe_domains[crtc->pipe] = get_crtc_power_domains(&crtc->base);
4156 for_each_power_domain(domain, pipe_domains[crtc->pipe])
4157 intel_display_power_get(dev_priv, domain);
4160 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
4161 enum intel_display_power_domain domain;
4163 for_each_power_domain(domain, crtc->enabled_power_domains)
4164 intel_display_power_put(dev_priv, domain);
4166 crtc->enabled_power_domains = pipe_domains[crtc->pipe];
4169 intel_display_set_init_power(dev_priv, false);
4172 int valleyview_get_vco(struct drm_i915_private *dev_priv)
4174 int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 };
4176 /* Obtain SKU information */
4177 mutex_lock(&dev_priv->dpio_lock);
4178 hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) &
4179 CCK_FUSE_HPLL_FREQ_MASK;
4180 mutex_unlock(&dev_priv->dpio_lock);
4182 return vco_freq[hpll_freq];
4185 /* Adjust CDclk dividers to allow high res or save power if possible */
4186 static void valleyview_set_cdclk(struct drm_device *dev, int cdclk)
4188 struct drm_i915_private *dev_priv = dev->dev_private;
4191 WARN_ON(valleyview_cur_cdclk(dev_priv) != dev_priv->vlv_cdclk_freq);
4192 dev_priv->vlv_cdclk_freq = cdclk;
4194 if (cdclk >= 320) /* jump to highest voltage for 400MHz too */
4196 else if (cdclk == 266)
4201 mutex_lock(&dev_priv->rps.hw_lock);
4202 val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ);
4203 val &= ~DSPFREQGUAR_MASK;
4204 val |= (cmd << DSPFREQGUAR_SHIFT);
4205 vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val);
4206 if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) &
4207 DSPFREQSTAT_MASK) == (cmd << DSPFREQSTAT_SHIFT),
4209 DRM_ERROR("timed out waiting for CDclk change\n");
4211 mutex_unlock(&dev_priv->rps.hw_lock);
4216 vco = valleyview_get_vco(dev_priv);
4217 divider = ((vco << 1) / cdclk) - 1;
4219 mutex_lock(&dev_priv->dpio_lock);
4220 /* adjust cdclk divider */
4221 val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
4224 vlv_cck_write(dev_priv, CCK_DISPLAY_CLOCK_CONTROL, val);
4225 mutex_unlock(&dev_priv->dpio_lock);
4228 mutex_lock(&dev_priv->dpio_lock);
4229 /* adjust self-refresh exit latency value */
4230 val = vlv_bunit_read(dev_priv, BUNIT_REG_BISOC);
4234 * For high bandwidth configs, we set a higher latency in the bunit
4235 * so that the core display fetch happens in time to avoid underruns.
4238 val |= 4500 / 250; /* 4.5 usec */
4240 val |= 3000 / 250; /* 3.0 usec */
4241 vlv_bunit_write(dev_priv, BUNIT_REG_BISOC, val);
4242 mutex_unlock(&dev_priv->dpio_lock);
4244 /* Since we changed the CDclk, we need to update the GMBUSFREQ too */
4245 intel_i2c_reset(dev);
4248 int valleyview_cur_cdclk(struct drm_i915_private *dev_priv)
4253 vco = valleyview_get_vco(dev_priv);
4255 mutex_lock(&dev_priv->dpio_lock);
4256 divider = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
4257 mutex_unlock(&dev_priv->dpio_lock);
4261 cur_cdclk = (vco << 1) / (divider + 1);
4266 static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv,
4270 * Really only a few cases to deal with, as only 4 CDclks are supported:
4275 * So we check to see whether we're above 90% of the lower bin and
4278 if (max_pixclk > 288000) {
4280 } else if (max_pixclk > 240000) {
4284 /* Looks like the 200MHz CDclk freq doesn't work on some configs */
4287 /* compute the max pixel clock for new configuration */
4288 static int intel_mode_max_pixclk(struct drm_i915_private *dev_priv)
4290 struct drm_device *dev = dev_priv->dev;
4291 struct intel_crtc *intel_crtc;
4294 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
4296 if (intel_crtc->new_enabled)
4297 max_pixclk = max(max_pixclk,
4298 intel_crtc->new_config->adjusted_mode.crtc_clock);
4304 static void valleyview_modeset_global_pipes(struct drm_device *dev,
4305 unsigned *prepare_pipes)
4307 struct drm_i915_private *dev_priv = dev->dev_private;
4308 struct intel_crtc *intel_crtc;
4309 int max_pixclk = intel_mode_max_pixclk(dev_priv);
4311 if (valleyview_calc_cdclk(dev_priv, max_pixclk) ==
4312 dev_priv->vlv_cdclk_freq)
4315 /* disable/enable all currently active pipes while we change cdclk */
4316 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
4318 if (intel_crtc->base.enabled)
4319 *prepare_pipes |= (1 << intel_crtc->pipe);
4322 static void valleyview_modeset_global_resources(struct drm_device *dev)
4324 struct drm_i915_private *dev_priv = dev->dev_private;
4325 int max_pixclk = intel_mode_max_pixclk(dev_priv);
4326 int req_cdclk = valleyview_calc_cdclk(dev_priv, max_pixclk);
4328 if (req_cdclk != dev_priv->vlv_cdclk_freq)
4329 valleyview_set_cdclk(dev, req_cdclk);
4330 modeset_update_crtc_power_domains(dev);
4333 static void valleyview_crtc_enable(struct drm_crtc *crtc)
4335 struct drm_device *dev = crtc->dev;
4336 struct drm_i915_private *dev_priv = dev->dev_private;
4337 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4338 struct intel_encoder *encoder;
4339 int pipe = intel_crtc->pipe;
4340 int plane = intel_crtc->plane;
4343 WARN_ON(!crtc->enabled);
4345 if (intel_crtc->active)
4348 intel_crtc->active = true;
4350 for_each_encoder_on_crtc(dev, crtc, encoder)
4351 if (encoder->pre_pll_enable)
4352 encoder->pre_pll_enable(encoder);
4354 is_dsi = intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI);
4357 vlv_enable_pll(intel_crtc);
4359 for_each_encoder_on_crtc(dev, crtc, encoder)
4360 if (encoder->pre_enable)
4361 encoder->pre_enable(encoder);
4363 i9xx_pfit_enable(intel_crtc);
4365 intel_crtc_load_lut(crtc);
4367 intel_update_watermarks(crtc);
4368 intel_enable_pipe(intel_crtc);
4369 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
4370 intel_enable_primary_hw_plane(dev_priv, plane, pipe);
4371 intel_enable_planes(crtc);
4372 intel_crtc_update_cursor(crtc, true);
4374 intel_update_fbc(dev);
4376 for_each_encoder_on_crtc(dev, crtc, encoder)
4377 encoder->enable(encoder);
4380 static void i9xx_crtc_enable(struct drm_crtc *crtc)
4382 struct drm_device *dev = crtc->dev;
4383 struct drm_i915_private *dev_priv = dev->dev_private;
4384 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4385 struct intel_encoder *encoder;
4386 int pipe = intel_crtc->pipe;
4387 int plane = intel_crtc->plane;
4389 WARN_ON(!crtc->enabled);
4391 if (intel_crtc->active)
4394 intel_crtc->active = true;
4396 for_each_encoder_on_crtc(dev, crtc, encoder)
4397 if (encoder->pre_enable)
4398 encoder->pre_enable(encoder);
4400 i9xx_enable_pll(intel_crtc);
4402 i9xx_pfit_enable(intel_crtc);
4404 intel_crtc_load_lut(crtc);
4406 intel_update_watermarks(crtc);
4407 intel_enable_pipe(intel_crtc);
4408 intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
4409 intel_enable_primary_hw_plane(dev_priv, plane, pipe);
4410 intel_enable_planes(crtc);
4411 /* The fixup needs to happen before cursor is enabled */
4413 g4x_fixup_plane(dev_priv, pipe);
4414 intel_crtc_update_cursor(crtc, true);
4416 /* Give the overlay scaler a chance to enable if it's on this pipe */
4417 intel_crtc_dpms_overlay(intel_crtc, true);
4419 intel_update_fbc(dev);
4421 for_each_encoder_on_crtc(dev, crtc, encoder)
4422 encoder->enable(encoder);
4425 static void i9xx_pfit_disable(struct intel_crtc *crtc)
4427 struct drm_device *dev = crtc->base.dev;
4428 struct drm_i915_private *dev_priv = dev->dev_private;
4430 if (!crtc->config.gmch_pfit.control)
4433 assert_pipe_disabled(dev_priv, crtc->pipe);
4435 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
4436 I915_READ(PFIT_CONTROL));
4437 I915_WRITE(PFIT_CONTROL, 0);
4440 static void i9xx_crtc_disable(struct drm_crtc *crtc)
4442 struct drm_device *dev = crtc->dev;
4443 struct drm_i915_private *dev_priv = dev->dev_private;
4444 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4445 struct intel_encoder *encoder;
4446 int pipe = intel_crtc->pipe;
4447 int plane = intel_crtc->plane;
4449 if (!intel_crtc->active)
4452 for_each_encoder_on_crtc(dev, crtc, encoder)
4453 encoder->disable(encoder);
4455 /* Give the overlay scaler a chance to disable if it's on this pipe */
4456 intel_crtc_wait_for_pending_flips(crtc);
4457 drm_vblank_off(dev, pipe);
4459 if (dev_priv->fbc.plane == plane)
4460 intel_disable_fbc(dev);
4462 intel_crtc_dpms_overlay(intel_crtc, false);
4463 intel_crtc_update_cursor(crtc, false);
4464 intel_disable_planes(crtc);
4465 intel_disable_primary_hw_plane(dev_priv, plane, pipe);
4467 intel_set_cpu_fifo_underrun_reporting(dev, pipe, false);
4468 intel_disable_pipe(dev_priv, pipe);
4470 i9xx_pfit_disable(intel_crtc);
4472 for_each_encoder_on_crtc(dev, crtc, encoder)
4473 if (encoder->post_disable)
4474 encoder->post_disable(encoder);
4476 if (IS_VALLEYVIEW(dev) && !intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI))
4477 vlv_disable_pll(dev_priv, pipe);
4478 else if (!IS_VALLEYVIEW(dev))
4479 i9xx_disable_pll(dev_priv, pipe);
4481 intel_crtc->active = false;
4482 intel_update_watermarks(crtc);
4484 intel_update_fbc(dev);
4487 static void i9xx_crtc_off(struct drm_crtc *crtc)
4491 static void intel_crtc_update_sarea(struct drm_crtc *crtc,
4494 struct drm_device *dev = crtc->dev;
4495 struct drm_i915_master_private *master_priv;
4496 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4497 int pipe = intel_crtc->pipe;
4499 if (!dev->primary->master)
4502 master_priv = dev->primary->master->driver_priv;
4503 if (!master_priv->sarea_priv)
4508 master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
4509 master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
4512 master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
4513 master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
4516 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
4522 * Sets the power management mode of the pipe and plane.
4524 void intel_crtc_update_dpms(struct drm_crtc *crtc)
4526 struct drm_device *dev = crtc->dev;
4527 struct drm_i915_private *dev_priv = dev->dev_private;
4528 struct intel_encoder *intel_encoder;
4529 bool enable = false;
4531 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
4532 enable |= intel_encoder->connectors_active;
4535 dev_priv->display.crtc_enable(crtc);
4537 dev_priv->display.crtc_disable(crtc);
4539 intel_crtc_update_sarea(crtc, enable);
4542 static void intel_crtc_disable(struct drm_crtc *crtc)
4544 struct drm_device *dev = crtc->dev;
4545 struct drm_connector *connector;
4546 struct drm_i915_private *dev_priv = dev->dev_private;
4547 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4549 /* crtc should still be enabled when we disable it. */
4550 WARN_ON(!crtc->enabled);
4552 dev_priv->display.crtc_disable(crtc);
4553 intel_crtc->eld_vld = false;
4554 intel_crtc_update_sarea(crtc, false);
4555 dev_priv->display.off(crtc);
4557 assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
4558 assert_cursor_disabled(dev_priv, to_intel_crtc(crtc)->pipe);
4559 assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
4561 if (crtc->primary->fb) {
4562 mutex_lock(&dev->struct_mutex);
4563 intel_unpin_fb_obj(to_intel_framebuffer(crtc->primary->fb)->obj);
4564 mutex_unlock(&dev->struct_mutex);
4565 crtc->primary->fb = NULL;
4568 /* Update computed state. */
4569 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
4570 if (!connector->encoder || !connector->encoder->crtc)
4573 if (connector->encoder->crtc != crtc)
4576 connector->dpms = DRM_MODE_DPMS_OFF;
4577 to_intel_encoder(connector->encoder)->connectors_active = false;
4581 void intel_encoder_destroy(struct drm_encoder *encoder)
4583 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
4585 drm_encoder_cleanup(encoder);
4586 kfree(intel_encoder);
4589 /* Simple dpms helper for encoders with just one connector, no cloning and only
4590 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
4591 * state of the entire output pipe. */
4592 static void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
4594 if (mode == DRM_MODE_DPMS_ON) {
4595 encoder->connectors_active = true;
4597 intel_crtc_update_dpms(encoder->base.crtc);
4599 encoder->connectors_active = false;
4601 intel_crtc_update_dpms(encoder->base.crtc);
4605 /* Cross check the actual hw state with our own modeset state tracking (and it's
4606 * internal consistency). */
4607 static void intel_connector_check_state(struct intel_connector *connector)
4609 if (connector->get_hw_state(connector)) {
4610 struct intel_encoder *encoder = connector->encoder;
4611 struct drm_crtc *crtc;
4612 bool encoder_enabled;
4615 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
4616 connector->base.base.id,
4617 drm_get_connector_name(&connector->base));
4619 WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
4620 "wrong connector dpms state\n");
4621 WARN(connector->base.encoder != &encoder->base,
4622 "active connector not linked to encoder\n");
4623 WARN(!encoder->connectors_active,
4624 "encoder->connectors_active not set\n");
4626 encoder_enabled = encoder->get_hw_state(encoder, &pipe);
4627 WARN(!encoder_enabled, "encoder not enabled\n");
4628 if (WARN_ON(!encoder->base.crtc))
4631 crtc = encoder->base.crtc;
4633 WARN(!crtc->enabled, "crtc not enabled\n");
4634 WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
4635 WARN(pipe != to_intel_crtc(crtc)->pipe,
4636 "encoder active on the wrong pipe\n");
4640 /* Even simpler default implementation, if there's really no special case to
4642 void intel_connector_dpms(struct drm_connector *connector, int mode)
4644 /* All the simple cases only support two dpms states. */
4645 if (mode != DRM_MODE_DPMS_ON)
4646 mode = DRM_MODE_DPMS_OFF;
4648 if (mode == connector->dpms)
4651 connector->dpms = mode;
4653 /* Only need to change hw state when actually enabled */
4654 if (connector->encoder)
4655 intel_encoder_dpms(to_intel_encoder(connector->encoder), mode);
4657 intel_modeset_check_state(connector->dev);
4660 /* Simple connector->get_hw_state implementation for encoders that support only
4661 * one connector and no cloning and hence the encoder state determines the state
4662 * of the connector. */
4663 bool intel_connector_get_hw_state(struct intel_connector *connector)
4666 struct intel_encoder *encoder = connector->encoder;
4668 return encoder->get_hw_state(encoder, &pipe);
4671 static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
4672 struct intel_crtc_config *pipe_config)
4674 struct drm_i915_private *dev_priv = dev->dev_private;
4675 struct intel_crtc *pipe_B_crtc =
4676 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
4678 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
4679 pipe_name(pipe), pipe_config->fdi_lanes);
4680 if (pipe_config->fdi_lanes > 4) {
4681 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
4682 pipe_name(pipe), pipe_config->fdi_lanes);
4686 if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
4687 if (pipe_config->fdi_lanes > 2) {
4688 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
4689 pipe_config->fdi_lanes);
4696 if (INTEL_INFO(dev)->num_pipes == 2)
4699 /* Ivybridge 3 pipe is really complicated */
4704 if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled &&
4705 pipe_config->fdi_lanes > 2) {
4706 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4707 pipe_name(pipe), pipe_config->fdi_lanes);
4712 if (!pipe_has_enabled_pch(pipe_B_crtc) ||
4713 pipe_B_crtc->config.fdi_lanes <= 2) {
4714 if (pipe_config->fdi_lanes > 2) {
4715 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4716 pipe_name(pipe), pipe_config->fdi_lanes);
4720 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
4730 static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc,
4731 struct intel_crtc_config *pipe_config)
4733 struct drm_device *dev = intel_crtc->base.dev;
4734 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
4735 int lane, link_bw, fdi_dotclock;
4736 bool setup_ok, needs_recompute = false;
4739 /* FDI is a binary signal running at ~2.7GHz, encoding
4740 * each output octet as 10 bits. The actual frequency
4741 * is stored as a divider into a 100MHz clock, and the
4742 * mode pixel clock is stored in units of 1KHz.
4743 * Hence the bw of each lane in terms of the mode signal
4746 link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
4748 fdi_dotclock = adjusted_mode->crtc_clock;
4750 lane = ironlake_get_lanes_required(fdi_dotclock, link_bw,
4751 pipe_config->pipe_bpp);
4753 pipe_config->fdi_lanes = lane;
4755 intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock,
4756 link_bw, &pipe_config->fdi_m_n);
4758 setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev,
4759 intel_crtc->pipe, pipe_config);
4760 if (!setup_ok && pipe_config->pipe_bpp > 6*3) {
4761 pipe_config->pipe_bpp -= 2*3;
4762 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
4763 pipe_config->pipe_bpp);
4764 needs_recompute = true;
4765 pipe_config->bw_constrained = true;
4770 if (needs_recompute)
4773 return setup_ok ? 0 : -EINVAL;
4776 static void hsw_compute_ips_config(struct intel_crtc *crtc,
4777 struct intel_crtc_config *pipe_config)
4779 pipe_config->ips_enabled = i915.enable_ips &&
4780 hsw_crtc_supports_ips(crtc) &&
4781 pipe_config->pipe_bpp <= 24;
4784 static int intel_crtc_compute_config(struct intel_crtc *crtc,
4785 struct intel_crtc_config *pipe_config)
4787 struct drm_device *dev = crtc->base.dev;
4788 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
4790 /* FIXME should check pixel clock limits on all platforms */
4791 if (INTEL_INFO(dev)->gen < 4) {
4792 struct drm_i915_private *dev_priv = dev->dev_private;
4794 dev_priv->display.get_display_clock_speed(dev);
4797 * Enable pixel doubling when the dot clock
4798 * is > 90% of the (display) core speed.
4800 * GDG double wide on either pipe,
4801 * otherwise pipe A only.
4803 if ((crtc->pipe == PIPE_A || IS_I915G(dev)) &&
4804 adjusted_mode->crtc_clock > clock_limit * 9 / 10) {
4806 pipe_config->double_wide = true;
4809 if (adjusted_mode->crtc_clock > clock_limit * 9 / 10)
4814 * Pipe horizontal size must be even in:
4816 * - LVDS dual channel mode
4817 * - Double wide pipe
4819 if ((intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4820 intel_is_dual_link_lvds(dev)) || pipe_config->double_wide)
4821 pipe_config->pipe_src_w &= ~1;
4823 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
4824 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
4826 if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) &&
4827 adjusted_mode->hsync_start == adjusted_mode->hdisplay)
4830 if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) {
4831 pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */
4832 } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) {
4833 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
4835 pipe_config->pipe_bpp = 8*3;
4839 hsw_compute_ips_config(crtc, pipe_config);
4841 /* XXX: PCH clock sharing is done in ->mode_set, so make sure the old
4842 * clock survives for now. */
4843 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
4844 pipe_config->shared_dpll = crtc->config.shared_dpll;
4846 if (pipe_config->has_pch_encoder)
4847 return ironlake_fdi_compute_config(crtc, pipe_config);
4852 static int valleyview_get_display_clock_speed(struct drm_device *dev)
4854 return 400000; /* FIXME */
4857 static int i945_get_display_clock_speed(struct drm_device *dev)
4862 static int i915_get_display_clock_speed(struct drm_device *dev)
4867 static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
4872 static int pnv_get_display_clock_speed(struct drm_device *dev)
4876 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4878 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4879 case GC_DISPLAY_CLOCK_267_MHZ_PNV:
4881 case GC_DISPLAY_CLOCK_333_MHZ_PNV:
4883 case GC_DISPLAY_CLOCK_444_MHZ_PNV:
4885 case GC_DISPLAY_CLOCK_200_MHZ_PNV:
4888 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc);
4889 case GC_DISPLAY_CLOCK_133_MHZ_PNV:
4891 case GC_DISPLAY_CLOCK_167_MHZ_PNV:
4896 static int i915gm_get_display_clock_speed(struct drm_device *dev)
4900 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4902 if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
4905 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4906 case GC_DISPLAY_CLOCK_333_MHZ:
4909 case GC_DISPLAY_CLOCK_190_200_MHZ:
4915 static int i865_get_display_clock_speed(struct drm_device *dev)
4920 static int i855_get_display_clock_speed(struct drm_device *dev)
4923 /* Assume that the hardware is in the high speed state. This
4924 * should be the default.
4926 switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
4927 case GC_CLOCK_133_200:
4928 case GC_CLOCK_100_200:
4930 case GC_CLOCK_166_250:
4932 case GC_CLOCK_100_133:
4936 /* Shouldn't happen */
4940 static int i830_get_display_clock_speed(struct drm_device *dev)
4946 intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den)
4948 while (*num > DATA_LINK_M_N_MASK ||
4949 *den > DATA_LINK_M_N_MASK) {
4955 static void compute_m_n(unsigned int m, unsigned int n,
4956 uint32_t *ret_m, uint32_t *ret_n)
4958 *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
4959 *ret_m = div_u64((uint64_t) m * *ret_n, n);
4960 intel_reduce_m_n_ratio(ret_m, ret_n);
4964 intel_link_compute_m_n(int bits_per_pixel, int nlanes,
4965 int pixel_clock, int link_clock,
4966 struct intel_link_m_n *m_n)
4970 compute_m_n(bits_per_pixel * pixel_clock,
4971 link_clock * nlanes * 8,
4972 &m_n->gmch_m, &m_n->gmch_n);
4974 compute_m_n(pixel_clock, link_clock,
4975 &m_n->link_m, &m_n->link_n);
4978 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
4980 if (i915.panel_use_ssc >= 0)
4981 return i915.panel_use_ssc != 0;
4982 return dev_priv->vbt.lvds_use_ssc
4983 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
4986 static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
4988 struct drm_device *dev = crtc->dev;
4989 struct drm_i915_private *dev_priv = dev->dev_private;
4992 if (IS_VALLEYVIEW(dev)) {
4994 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
4995 intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
4996 refclk = dev_priv->vbt.lvds_ssc_freq;
4997 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk);
4998 } else if (!IS_GEN2(dev)) {
5007 static uint32_t pnv_dpll_compute_fp(struct dpll *dpll)
5009 return (1 << dpll->n) << 16 | dpll->m2;
5012 static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll)
5014 return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
5017 static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
5018 intel_clock_t *reduced_clock)
5020 struct drm_device *dev = crtc->base.dev;
5021 struct drm_i915_private *dev_priv = dev->dev_private;
5022 int pipe = crtc->pipe;
5025 if (IS_PINEVIEW(dev)) {
5026 fp = pnv_dpll_compute_fp(&crtc->config.dpll);
5028 fp2 = pnv_dpll_compute_fp(reduced_clock);
5030 fp = i9xx_dpll_compute_fp(&crtc->config.dpll);
5032 fp2 = i9xx_dpll_compute_fp(reduced_clock);
5035 I915_WRITE(FP0(pipe), fp);
5036 crtc->config.dpll_hw_state.fp0 = fp;
5038 crtc->lowfreq_avail = false;
5039 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
5040 reduced_clock && i915.powersave) {
5041 I915_WRITE(FP1(pipe), fp2);
5042 crtc->config.dpll_hw_state.fp1 = fp2;
5043 crtc->lowfreq_avail = true;
5045 I915_WRITE(FP1(pipe), fp);
5046 crtc->config.dpll_hw_state.fp1 = fp;
5050 static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe
5056 * PLLB opamp always calibrates to max value of 0x3f, force enable it
5057 * and set it to a reasonable value instead.
5059 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
5060 reg_val &= 0xffffff00;
5061 reg_val |= 0x00000030;
5062 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
5064 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
5065 reg_val &= 0x8cffffff;
5066 reg_val = 0x8c000000;
5067 vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
5069 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
5070 reg_val &= 0xffffff00;
5071 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
5073 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
5074 reg_val &= 0x00ffffff;
5075 reg_val |= 0xb0000000;
5076 vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
5079 static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
5080 struct intel_link_m_n *m_n)
5082 struct drm_device *dev = crtc->base.dev;
5083 struct drm_i915_private *dev_priv = dev->dev_private;
5084 int pipe = crtc->pipe;
5086 I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
5087 I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n);
5088 I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m);
5089 I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n);
5092 static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
5093 struct intel_link_m_n *m_n)
5095 struct drm_device *dev = crtc->base.dev;
5096 struct drm_i915_private *dev_priv = dev->dev_private;
5097 int pipe = crtc->pipe;
5098 enum transcoder transcoder = crtc->config.cpu_transcoder;
5100 if (INTEL_INFO(dev)->gen >= 5) {
5101 I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
5102 I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
5103 I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
5104 I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
5106 I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
5107 I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n);
5108 I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m);
5109 I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n);
5113 static void intel_dp_set_m_n(struct intel_crtc *crtc)
5115 if (crtc->config.has_pch_encoder)
5116 intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
5118 intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
5121 static void vlv_update_pll(struct intel_crtc *crtc)
5123 struct drm_device *dev = crtc->base.dev;
5124 struct drm_i915_private *dev_priv = dev->dev_private;
5125 int pipe = crtc->pipe;
5127 u32 bestn, bestm1, bestm2, bestp1, bestp2;
5128 u32 coreclk, reg_val, dpll_md;
5130 mutex_lock(&dev_priv->dpio_lock);
5132 bestn = crtc->config.dpll.n;
5133 bestm1 = crtc->config.dpll.m1;
5134 bestm2 = crtc->config.dpll.m2;
5135 bestp1 = crtc->config.dpll.p1;
5136 bestp2 = crtc->config.dpll.p2;
5138 /* See eDP HDMI DPIO driver vbios notes doc */
5140 /* PLL B needs special handling */
5142 vlv_pllb_recal_opamp(dev_priv, pipe);
5144 /* Set up Tx target for periodic Rcomp update */
5145 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f);
5147 /* Disable target IRef on PLL */
5148 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe));
5149 reg_val &= 0x00ffffff;
5150 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val);
5152 /* Disable fast lock */
5153 vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610);
5155 /* Set idtafcrecal before PLL is enabled */
5156 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
5157 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
5158 mdiv |= ((bestn << DPIO_N_SHIFT));
5159 mdiv |= (1 << DPIO_K_SHIFT);
5162 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
5163 * but we don't support that).
5164 * Note: don't use the DAC post divider as it seems unstable.
5166 mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
5167 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
5169 mdiv |= DPIO_ENABLE_CALIBRATION;
5170 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
5172 /* Set HBR and RBR LPF coefficients */
5173 if (crtc->config.port_clock == 162000 ||
5174 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_ANALOG) ||
5175 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI))
5176 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
5179 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
5182 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
5183 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) {
5184 /* Use SSC source */
5186 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
5189 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
5191 } else { /* HDMI or VGA */
5192 /* Use bend source */
5194 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
5197 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
5201 coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe));
5202 coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
5203 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) ||
5204 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP))
5205 coreclk |= 0x01000000;
5206 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk);
5208 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000);
5211 * Enable DPIO clock input. We should never disable the reference
5212 * clock for pipe B, since VGA hotplug / manual detection depends
5215 dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
5216 DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
5217 /* We should never disable this, set it here for state tracking */
5219 dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
5220 dpll |= DPLL_VCO_ENABLE;
5221 crtc->config.dpll_hw_state.dpll = dpll;
5223 dpll_md = (crtc->config.pixel_multiplier - 1)
5224 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
5225 crtc->config.dpll_hw_state.dpll_md = dpll_md;
5227 mutex_unlock(&dev_priv->dpio_lock);
5230 static void i9xx_update_pll(struct intel_crtc *crtc,
5231 intel_clock_t *reduced_clock,
5234 struct drm_device *dev = crtc->base.dev;
5235 struct drm_i915_private *dev_priv = dev->dev_private;
5238 struct dpll *clock = &crtc->config.dpll;
5240 i9xx_update_pll_dividers(crtc, reduced_clock);
5242 is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
5243 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
5245 dpll = DPLL_VGA_MODE_DIS;
5247 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS))
5248 dpll |= DPLLB_MODE_LVDS;
5250 dpll |= DPLLB_MODE_DAC_SERIAL;
5252 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
5253 dpll |= (crtc->config.pixel_multiplier - 1)
5254 << SDVO_MULTIPLIER_SHIFT_HIRES;
5258 dpll |= DPLL_SDVO_HIGH_SPEED;
5260 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
5261 dpll |= DPLL_SDVO_HIGH_SPEED;
5263 /* compute bitmask from p1 value */
5264 if (IS_PINEVIEW(dev))
5265 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
5267 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
5268 if (IS_G4X(dev) && reduced_clock)
5269 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
5271 switch (clock->p2) {
5273 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
5276 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
5279 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
5282 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
5285 if (INTEL_INFO(dev)->gen >= 4)
5286 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
5288 if (crtc->config.sdvo_tv_clock)
5289 dpll |= PLL_REF_INPUT_TVCLKINBC;
5290 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
5291 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
5292 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
5294 dpll |= PLL_REF_INPUT_DREFCLK;
5296 dpll |= DPLL_VCO_ENABLE;
5297 crtc->config.dpll_hw_state.dpll = dpll;
5299 if (INTEL_INFO(dev)->gen >= 4) {
5300 u32 dpll_md = (crtc->config.pixel_multiplier - 1)
5301 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
5302 crtc->config.dpll_hw_state.dpll_md = dpll_md;
5306 static void i8xx_update_pll(struct intel_crtc *crtc,
5307 intel_clock_t *reduced_clock,
5310 struct drm_device *dev = crtc->base.dev;
5311 struct drm_i915_private *dev_priv = dev->dev_private;
5313 struct dpll *clock = &crtc->config.dpll;
5315 i9xx_update_pll_dividers(crtc, reduced_clock);
5317 dpll = DPLL_VGA_MODE_DIS;
5319 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
5320 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
5323 dpll |= PLL_P1_DIVIDE_BY_TWO;
5325 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
5327 dpll |= PLL_P2_DIVIDE_BY_4;
5330 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DVO))
5331 dpll |= DPLL_DVO_2X_MODE;
5333 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
5334 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
5335 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
5337 dpll |= PLL_REF_INPUT_DREFCLK;
5339 dpll |= DPLL_VCO_ENABLE;
5340 crtc->config.dpll_hw_state.dpll = dpll;
5343 static void intel_set_pipe_timings(struct intel_crtc *intel_crtc)
5345 struct drm_device *dev = intel_crtc->base.dev;
5346 struct drm_i915_private *dev_priv = dev->dev_private;
5347 enum pipe pipe = intel_crtc->pipe;
5348 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
5349 struct drm_display_mode *adjusted_mode =
5350 &intel_crtc->config.adjusted_mode;
5351 uint32_t crtc_vtotal, crtc_vblank_end;
5354 /* We need to be careful not to changed the adjusted mode, for otherwise
5355 * the hw state checker will get angry at the mismatch. */
5356 crtc_vtotal = adjusted_mode->crtc_vtotal;
5357 crtc_vblank_end = adjusted_mode->crtc_vblank_end;
5359 if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
5360 /* the chip adds 2 halflines automatically */
5362 crtc_vblank_end -= 1;
5364 if (intel_pipe_has_type(&intel_crtc->base, INTEL_OUTPUT_SDVO))
5365 vsyncshift = (adjusted_mode->crtc_htotal - 1) / 2;
5367 vsyncshift = adjusted_mode->crtc_hsync_start -
5368 adjusted_mode->crtc_htotal / 2;
5370 vsyncshift += adjusted_mode->crtc_htotal;
5373 if (INTEL_INFO(dev)->gen > 3)
5374 I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
5376 I915_WRITE(HTOTAL(cpu_transcoder),
5377 (adjusted_mode->crtc_hdisplay - 1) |
5378 ((adjusted_mode->crtc_htotal - 1) << 16));
5379 I915_WRITE(HBLANK(cpu_transcoder),
5380 (adjusted_mode->crtc_hblank_start - 1) |
5381 ((adjusted_mode->crtc_hblank_end - 1) << 16));
5382 I915_WRITE(HSYNC(cpu_transcoder),
5383 (adjusted_mode->crtc_hsync_start - 1) |
5384 ((adjusted_mode->crtc_hsync_end - 1) << 16));
5386 I915_WRITE(VTOTAL(cpu_transcoder),
5387 (adjusted_mode->crtc_vdisplay - 1) |
5388 ((crtc_vtotal - 1) << 16));
5389 I915_WRITE(VBLANK(cpu_transcoder),
5390 (adjusted_mode->crtc_vblank_start - 1) |
5391 ((crtc_vblank_end - 1) << 16));
5392 I915_WRITE(VSYNC(cpu_transcoder),
5393 (adjusted_mode->crtc_vsync_start - 1) |
5394 ((adjusted_mode->crtc_vsync_end - 1) << 16));
5396 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
5397 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
5398 * documented on the DDI_FUNC_CTL register description, EDP Input Select
5400 if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP &&
5401 (pipe == PIPE_B || pipe == PIPE_C))
5402 I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
5404 /* pipesrc controls the size that is scaled from, which should
5405 * always be the user's requested size.
5407 I915_WRITE(PIPESRC(pipe),
5408 ((intel_crtc->config.pipe_src_w - 1) << 16) |
5409 (intel_crtc->config.pipe_src_h - 1));
5412 static void intel_get_pipe_timings(struct intel_crtc *crtc,
5413 struct intel_crtc_config *pipe_config)
5415 struct drm_device *dev = crtc->base.dev;
5416 struct drm_i915_private *dev_priv = dev->dev_private;
5417 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
5420 tmp = I915_READ(HTOTAL(cpu_transcoder));
5421 pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1;
5422 pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1;
5423 tmp = I915_READ(HBLANK(cpu_transcoder));
5424 pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1;
5425 pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1;
5426 tmp = I915_READ(HSYNC(cpu_transcoder));
5427 pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1;
5428 pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1;
5430 tmp = I915_READ(VTOTAL(cpu_transcoder));
5431 pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1;
5432 pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1;
5433 tmp = I915_READ(VBLANK(cpu_transcoder));
5434 pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1;
5435 pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1;
5436 tmp = I915_READ(VSYNC(cpu_transcoder));
5437 pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1;
5438 pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1;
5440 if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) {
5441 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE;
5442 pipe_config->adjusted_mode.crtc_vtotal += 1;
5443 pipe_config->adjusted_mode.crtc_vblank_end += 1;
5446 tmp = I915_READ(PIPESRC(crtc->pipe));
5447 pipe_config->pipe_src_h = (tmp & 0xffff) + 1;
5448 pipe_config->pipe_src_w = ((tmp >> 16) & 0xffff) + 1;
5450 pipe_config->requested_mode.vdisplay = pipe_config->pipe_src_h;
5451 pipe_config->requested_mode.hdisplay = pipe_config->pipe_src_w;
5454 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
5455 struct intel_crtc_config *pipe_config)
5457 mode->hdisplay = pipe_config->adjusted_mode.crtc_hdisplay;
5458 mode->htotal = pipe_config->adjusted_mode.crtc_htotal;
5459 mode->hsync_start = pipe_config->adjusted_mode.crtc_hsync_start;
5460 mode->hsync_end = pipe_config->adjusted_mode.crtc_hsync_end;
5462 mode->vdisplay = pipe_config->adjusted_mode.crtc_vdisplay;
5463 mode->vtotal = pipe_config->adjusted_mode.crtc_vtotal;
5464 mode->vsync_start = pipe_config->adjusted_mode.crtc_vsync_start;
5465 mode->vsync_end = pipe_config->adjusted_mode.crtc_vsync_end;
5467 mode->flags = pipe_config->adjusted_mode.flags;
5469 mode->clock = pipe_config->adjusted_mode.crtc_clock;
5470 mode->flags |= pipe_config->adjusted_mode.flags;
5473 static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
5475 struct drm_device *dev = intel_crtc->base.dev;
5476 struct drm_i915_private *dev_priv = dev->dev_private;
5481 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
5482 I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE)
5483 pipeconf |= PIPECONF_ENABLE;
5485 if (intel_crtc->config.double_wide)
5486 pipeconf |= PIPECONF_DOUBLE_WIDE;
5488 /* only g4x and later have fancy bpc/dither controls */
5489 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
5490 /* Bspec claims that we can't use dithering for 30bpp pipes. */
5491 if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30)
5492 pipeconf |= PIPECONF_DITHER_EN |
5493 PIPECONF_DITHER_TYPE_SP;
5495 switch (intel_crtc->config.pipe_bpp) {
5497 pipeconf |= PIPECONF_6BPC;
5500 pipeconf |= PIPECONF_8BPC;
5503 pipeconf |= PIPECONF_10BPC;
5506 /* Case prevented by intel_choose_pipe_bpp_dither. */
5511 if (HAS_PIPE_CXSR(dev)) {
5512 if (intel_crtc->lowfreq_avail) {
5513 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
5514 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
5516 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
5520 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) {
5521 if (INTEL_INFO(dev)->gen < 4 ||
5522 intel_pipe_has_type(&intel_crtc->base, INTEL_OUTPUT_SDVO))
5523 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
5525 pipeconf |= PIPECONF_INTERLACE_W_SYNC_SHIFT;
5527 pipeconf |= PIPECONF_PROGRESSIVE;
5529 if (IS_VALLEYVIEW(dev) && intel_crtc->config.limited_color_range)
5530 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
5532 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
5533 POSTING_READ(PIPECONF(intel_crtc->pipe));
5536 static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
5538 struct drm_framebuffer *fb)
5540 struct drm_device *dev = crtc->dev;
5541 struct drm_i915_private *dev_priv = dev->dev_private;
5542 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5543 int pipe = intel_crtc->pipe;
5544 int plane = intel_crtc->plane;
5545 int refclk, num_connectors = 0;
5546 intel_clock_t clock, reduced_clock;
5548 bool ok, has_reduced_clock = false;
5549 bool is_lvds = false, is_dsi = false;
5550 struct intel_encoder *encoder;
5551 const intel_limit_t *limit;
5554 for_each_encoder_on_crtc(dev, crtc, encoder) {
5555 switch (encoder->type) {
5556 case INTEL_OUTPUT_LVDS:
5559 case INTEL_OUTPUT_DSI:
5570 if (!intel_crtc->config.clock_set) {
5571 refclk = i9xx_get_refclk(crtc, num_connectors);
5574 * Returns a set of divisors for the desired target clock with
5575 * the given refclk, or FALSE. The returned values represent
5576 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
5579 limit = intel_limit(crtc, refclk);
5580 ok = dev_priv->display.find_dpll(limit, crtc,
5581 intel_crtc->config.port_clock,
5582 refclk, NULL, &clock);
5584 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5588 if (is_lvds && dev_priv->lvds_downclock_avail) {
5590 * Ensure we match the reduced clock's P to the target
5591 * clock. If the clocks don't match, we can't switch
5592 * the display clock by using the FP0/FP1. In such case
5593 * we will disable the LVDS downclock feature.
5596 dev_priv->display.find_dpll(limit, crtc,
5597 dev_priv->lvds_downclock,
5601 /* Compat-code for transition, will disappear. */
5602 intel_crtc->config.dpll.n = clock.n;
5603 intel_crtc->config.dpll.m1 = clock.m1;
5604 intel_crtc->config.dpll.m2 = clock.m2;
5605 intel_crtc->config.dpll.p1 = clock.p1;
5606 intel_crtc->config.dpll.p2 = clock.p2;
5610 i8xx_update_pll(intel_crtc,
5611 has_reduced_clock ? &reduced_clock : NULL,
5613 } else if (IS_VALLEYVIEW(dev)) {
5614 vlv_update_pll(intel_crtc);
5616 i9xx_update_pll(intel_crtc,
5617 has_reduced_clock ? &reduced_clock : NULL,
5622 /* Set up the display plane register */
5623 dspcntr = DISPPLANE_GAMMA_ENABLE;
5625 if (!IS_VALLEYVIEW(dev)) {
5627 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
5629 dspcntr |= DISPPLANE_SEL_PIPE_B;
5632 if (intel_crtc->config.has_dp_encoder)
5633 intel_dp_set_m_n(intel_crtc);
5635 intel_set_pipe_timings(intel_crtc);
5637 /* pipesrc and dspsize control the size that is scaled from,
5638 * which should always be the user's requested size.
5640 I915_WRITE(DSPSIZE(plane),
5641 ((intel_crtc->config.pipe_src_h - 1) << 16) |
5642 (intel_crtc->config.pipe_src_w - 1));
5643 I915_WRITE(DSPPOS(plane), 0);
5645 i9xx_set_pipeconf(intel_crtc);
5647 I915_WRITE(DSPCNTR(plane), dspcntr);
5648 POSTING_READ(DSPCNTR(plane));
5650 ret = intel_pipe_set_base(crtc, x, y, fb);
5655 static void i9xx_get_pfit_config(struct intel_crtc *crtc,
5656 struct intel_crtc_config *pipe_config)
5658 struct drm_device *dev = crtc->base.dev;
5659 struct drm_i915_private *dev_priv = dev->dev_private;
5662 if (INTEL_INFO(dev)->gen <= 3 && (IS_I830(dev) || !IS_MOBILE(dev)))
5665 tmp = I915_READ(PFIT_CONTROL);
5666 if (!(tmp & PFIT_ENABLE))
5669 /* Check whether the pfit is attached to our pipe. */
5670 if (INTEL_INFO(dev)->gen < 4) {
5671 if (crtc->pipe != PIPE_B)
5674 if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT))
5678 pipe_config->gmch_pfit.control = tmp;
5679 pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS);
5680 if (INTEL_INFO(dev)->gen < 5)
5681 pipe_config->gmch_pfit.lvds_border_bits =
5682 I915_READ(LVDS) & LVDS_BORDER_ENABLE;
5685 static void vlv_crtc_clock_get(struct intel_crtc *crtc,
5686 struct intel_crtc_config *pipe_config)
5688 struct drm_device *dev = crtc->base.dev;
5689 struct drm_i915_private *dev_priv = dev->dev_private;
5690 int pipe = pipe_config->cpu_transcoder;
5691 intel_clock_t clock;
5693 int refclk = 100000;
5695 mutex_lock(&dev_priv->dpio_lock);
5696 mdiv = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW3(pipe));
5697 mutex_unlock(&dev_priv->dpio_lock);
5699 clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7;
5700 clock.m2 = mdiv & DPIO_M2DIV_MASK;
5701 clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf;
5702 clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7;
5703 clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f;
5705 vlv_clock(refclk, &clock);
5707 /* clock.dot is the fast clock */
5708 pipe_config->port_clock = clock.dot / 5;
5711 static void i9xx_get_plane_config(struct intel_crtc *crtc,
5712 struct intel_plane_config *plane_config)
5714 struct drm_device *dev = crtc->base.dev;
5715 struct drm_i915_private *dev_priv = dev->dev_private;
5716 u32 val, base, offset;
5717 int pipe = crtc->pipe, plane = crtc->plane;
5718 int fourcc, pixel_format;
5721 crtc->base.primary->fb = kzalloc(sizeof(struct intel_framebuffer), GFP_KERNEL);
5722 if (!crtc->base.primary->fb) {
5723 DRM_DEBUG_KMS("failed to alloc fb\n");
5727 val = I915_READ(DSPCNTR(plane));
5729 if (INTEL_INFO(dev)->gen >= 4)
5730 if (val & DISPPLANE_TILED)
5731 plane_config->tiled = true;
5733 pixel_format = val & DISPPLANE_PIXFORMAT_MASK;
5734 fourcc = intel_format_to_fourcc(pixel_format);
5735 crtc->base.primary->fb->pixel_format = fourcc;
5736 crtc->base.primary->fb->bits_per_pixel =
5737 drm_format_plane_cpp(fourcc, 0) * 8;
5739 if (INTEL_INFO(dev)->gen >= 4) {
5740 if (plane_config->tiled)
5741 offset = I915_READ(DSPTILEOFF(plane));
5743 offset = I915_READ(DSPLINOFF(plane));
5744 base = I915_READ(DSPSURF(plane)) & 0xfffff000;
5746 base = I915_READ(DSPADDR(plane));
5748 plane_config->base = base;
5750 val = I915_READ(PIPESRC(pipe));
5751 crtc->base.primary->fb->width = ((val >> 16) & 0xfff) + 1;
5752 crtc->base.primary->fb->height = ((val >> 0) & 0xfff) + 1;
5754 val = I915_READ(DSPSTRIDE(pipe));
5755 crtc->base.primary->fb->pitches[0] = val & 0xffffff80;
5757 aligned_height = intel_align_height(dev, crtc->base.primary->fb->height,
5758 plane_config->tiled);
5760 plane_config->size = ALIGN(crtc->base.primary->fb->pitches[0] *
5761 aligned_height, PAGE_SIZE);
5763 DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
5764 pipe, plane, crtc->base.primary->fb->width,
5765 crtc->base.primary->fb->height,
5766 crtc->base.primary->fb->bits_per_pixel, base,
5767 crtc->base.primary->fb->pitches[0],
5768 plane_config->size);
5772 static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
5773 struct intel_crtc_config *pipe_config)
5775 struct drm_device *dev = crtc->base.dev;
5776 struct drm_i915_private *dev_priv = dev->dev_private;
5779 if (!intel_display_power_enabled(dev_priv,
5780 POWER_DOMAIN_PIPE(crtc->pipe)))
5783 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
5784 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
5786 tmp = I915_READ(PIPECONF(crtc->pipe));
5787 if (!(tmp & PIPECONF_ENABLE))
5790 if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
5791 switch (tmp & PIPECONF_BPC_MASK) {
5793 pipe_config->pipe_bpp = 18;
5796 pipe_config->pipe_bpp = 24;
5798 case PIPECONF_10BPC:
5799 pipe_config->pipe_bpp = 30;
5806 if (INTEL_INFO(dev)->gen < 4)
5807 pipe_config->double_wide = tmp & PIPECONF_DOUBLE_WIDE;
5809 intel_get_pipe_timings(crtc, pipe_config);
5811 i9xx_get_pfit_config(crtc, pipe_config);
5813 if (INTEL_INFO(dev)->gen >= 4) {
5814 tmp = I915_READ(DPLL_MD(crtc->pipe));
5815 pipe_config->pixel_multiplier =
5816 ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK)
5817 >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1;
5818 pipe_config->dpll_hw_state.dpll_md = tmp;
5819 } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
5820 tmp = I915_READ(DPLL(crtc->pipe));
5821 pipe_config->pixel_multiplier =
5822 ((tmp & SDVO_MULTIPLIER_MASK)
5823 >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1;
5825 /* Note that on i915G/GM the pixel multiplier is in the sdvo
5826 * port and will be fixed up in the encoder->get_config
5828 pipe_config->pixel_multiplier = 1;
5830 pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe));
5831 if (!IS_VALLEYVIEW(dev)) {
5832 pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe));
5833 pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe));
5835 /* Mask out read-only status bits. */
5836 pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV |
5837 DPLL_PORTC_READY_MASK |
5838 DPLL_PORTB_READY_MASK);
5841 if (IS_VALLEYVIEW(dev))
5842 vlv_crtc_clock_get(crtc, pipe_config);
5844 i9xx_crtc_clock_get(crtc, pipe_config);
5849 static void ironlake_init_pch_refclk(struct drm_device *dev)
5851 struct drm_i915_private *dev_priv = dev->dev_private;
5852 struct drm_mode_config *mode_config = &dev->mode_config;
5853 struct intel_encoder *encoder;
5855 bool has_lvds = false;
5856 bool has_cpu_edp = false;
5857 bool has_panel = false;
5858 bool has_ck505 = false;
5859 bool can_ssc = false;
5861 /* We need to take the global config into account */
5862 list_for_each_entry(encoder, &mode_config->encoder_list,
5864 switch (encoder->type) {
5865 case INTEL_OUTPUT_LVDS:
5869 case INTEL_OUTPUT_EDP:
5871 if (enc_to_dig_port(&encoder->base)->port == PORT_A)
5877 if (HAS_PCH_IBX(dev)) {
5878 has_ck505 = dev_priv->vbt.display_clock_mode;
5879 can_ssc = has_ck505;
5885 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
5886 has_panel, has_lvds, has_ck505);
5888 /* Ironlake: try to setup display ref clock before DPLL
5889 * enabling. This is only under driver's control after
5890 * PCH B stepping, previous chipset stepping should be
5891 * ignoring this setting.
5893 val = I915_READ(PCH_DREF_CONTROL);
5895 /* As we must carefully and slowly disable/enable each source in turn,
5896 * compute the final state we want first and check if we need to
5897 * make any changes at all.
5900 final &= ~DREF_NONSPREAD_SOURCE_MASK;
5902 final |= DREF_NONSPREAD_CK505_ENABLE;
5904 final |= DREF_NONSPREAD_SOURCE_ENABLE;
5906 final &= ~DREF_SSC_SOURCE_MASK;
5907 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5908 final &= ~DREF_SSC1_ENABLE;
5911 final |= DREF_SSC_SOURCE_ENABLE;
5913 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5914 final |= DREF_SSC1_ENABLE;
5917 if (intel_panel_use_ssc(dev_priv) && can_ssc)
5918 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5920 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5922 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5924 final |= DREF_SSC_SOURCE_DISABLE;
5925 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5931 /* Always enable nonspread source */
5932 val &= ~DREF_NONSPREAD_SOURCE_MASK;
5935 val |= DREF_NONSPREAD_CK505_ENABLE;
5937 val |= DREF_NONSPREAD_SOURCE_ENABLE;
5940 val &= ~DREF_SSC_SOURCE_MASK;
5941 val |= DREF_SSC_SOURCE_ENABLE;
5943 /* SSC must be turned on before enabling the CPU output */
5944 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
5945 DRM_DEBUG_KMS("Using SSC on panel\n");
5946 val |= DREF_SSC1_ENABLE;
5948 val &= ~DREF_SSC1_ENABLE;
5950 /* Get SSC going before enabling the outputs */
5951 I915_WRITE(PCH_DREF_CONTROL, val);
5952 POSTING_READ(PCH_DREF_CONTROL);
5955 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5957 /* Enable CPU source on CPU attached eDP */
5959 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
5960 DRM_DEBUG_KMS("Using SSC on eDP\n");
5961 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
5964 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
5966 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5968 I915_WRITE(PCH_DREF_CONTROL, val);
5969 POSTING_READ(PCH_DREF_CONTROL);
5972 DRM_DEBUG_KMS("Disabling SSC entirely\n");
5974 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
5976 /* Turn off CPU output */
5977 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
5979 I915_WRITE(PCH_DREF_CONTROL, val);
5980 POSTING_READ(PCH_DREF_CONTROL);
5983 /* Turn off the SSC source */
5984 val &= ~DREF_SSC_SOURCE_MASK;
5985 val |= DREF_SSC_SOURCE_DISABLE;
5988 val &= ~DREF_SSC1_ENABLE;
5990 I915_WRITE(PCH_DREF_CONTROL, val);
5991 POSTING_READ(PCH_DREF_CONTROL);
5995 BUG_ON(val != final);
5998 static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv)
6002 tmp = I915_READ(SOUTH_CHICKEN2);
6003 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
6004 I915_WRITE(SOUTH_CHICKEN2, tmp);
6006 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
6007 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
6008 DRM_ERROR("FDI mPHY reset assert timeout\n");
6010 tmp = I915_READ(SOUTH_CHICKEN2);
6011 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
6012 I915_WRITE(SOUTH_CHICKEN2, tmp);
6014 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
6015 FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100))
6016 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
6019 /* WaMPhyProgramming:hsw */
6020 static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv)
6024 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
6025 tmp &= ~(0xFF << 24);
6026 tmp |= (0x12 << 24);
6027 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
6029 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
6031 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
6033 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
6035 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
6037 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
6038 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
6039 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
6041 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
6042 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
6043 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
6045 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
6048 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
6050 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
6053 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
6055 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
6058 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
6060 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
6063 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
6065 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
6066 tmp &= ~(0xFF << 16);
6067 tmp |= (0x1C << 16);
6068 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
6070 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
6071 tmp &= ~(0xFF << 16);
6072 tmp |= (0x1C << 16);
6073 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
6075 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
6077 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
6079 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
6081 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
6083 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
6084 tmp &= ~(0xF << 28);
6086 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
6088 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
6089 tmp &= ~(0xF << 28);
6091 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
6094 /* Implements 3 different sequences from BSpec chapter "Display iCLK
6095 * Programming" based on the parameters passed:
6096 * - Sequence to enable CLKOUT_DP
6097 * - Sequence to enable CLKOUT_DP without spread
6098 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
6100 static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread,
6103 struct drm_i915_private *dev_priv = dev->dev_private;
6106 if (WARN(with_fdi && !with_spread, "FDI requires downspread\n"))
6108 if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE &&
6109 with_fdi, "LP PCH doesn't have FDI\n"))
6112 mutex_lock(&dev_priv->dpio_lock);
6114 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
6115 tmp &= ~SBI_SSCCTL_DISABLE;
6116 tmp |= SBI_SSCCTL_PATHALT;
6117 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
6122 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
6123 tmp &= ~SBI_SSCCTL_PATHALT;
6124 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
6127 lpt_reset_fdi_mphy(dev_priv);
6128 lpt_program_fdi_mphy(dev_priv);
6132 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
6133 SBI_GEN0 : SBI_DBUFF0;
6134 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
6135 tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE;
6136 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
6138 mutex_unlock(&dev_priv->dpio_lock);
6141 /* Sequence to disable CLKOUT_DP */
6142 static void lpt_disable_clkout_dp(struct drm_device *dev)
6144 struct drm_i915_private *dev_priv = dev->dev_private;
6147 mutex_lock(&dev_priv->dpio_lock);
6149 reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
6150 SBI_GEN0 : SBI_DBUFF0;
6151 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
6152 tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE;
6153 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
6155 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
6156 if (!(tmp & SBI_SSCCTL_DISABLE)) {
6157 if (!(tmp & SBI_SSCCTL_PATHALT)) {
6158 tmp |= SBI_SSCCTL_PATHALT;
6159 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
6162 tmp |= SBI_SSCCTL_DISABLE;
6163 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
6166 mutex_unlock(&dev_priv->dpio_lock);
6169 static void lpt_init_pch_refclk(struct drm_device *dev)
6171 struct drm_mode_config *mode_config = &dev->mode_config;
6172 struct intel_encoder *encoder;
6173 bool has_vga = false;
6175 list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
6176 switch (encoder->type) {
6177 case INTEL_OUTPUT_ANALOG:
6184 lpt_enable_clkout_dp(dev, true, true);
6186 lpt_disable_clkout_dp(dev);
6190 * Initialize reference clocks when the driver loads
6192 void intel_init_pch_refclk(struct drm_device *dev)
6194 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
6195 ironlake_init_pch_refclk(dev);
6196 else if (HAS_PCH_LPT(dev))
6197 lpt_init_pch_refclk(dev);
6200 static int ironlake_get_refclk(struct drm_crtc *crtc)
6202 struct drm_device *dev = crtc->dev;
6203 struct drm_i915_private *dev_priv = dev->dev_private;
6204 struct intel_encoder *encoder;
6205 int num_connectors = 0;
6206 bool is_lvds = false;
6208 for_each_encoder_on_crtc(dev, crtc, encoder) {
6209 switch (encoder->type) {
6210 case INTEL_OUTPUT_LVDS:
6217 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
6218 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
6219 dev_priv->vbt.lvds_ssc_freq);
6220 return dev_priv->vbt.lvds_ssc_freq;
6226 static void ironlake_set_pipeconf(struct drm_crtc *crtc)
6228 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
6229 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6230 int pipe = intel_crtc->pipe;
6235 switch (intel_crtc->config.pipe_bpp) {
6237 val |= PIPECONF_6BPC;
6240 val |= PIPECONF_8BPC;
6243 val |= PIPECONF_10BPC;
6246 val |= PIPECONF_12BPC;
6249 /* Case prevented by intel_choose_pipe_bpp_dither. */
6253 if (intel_crtc->config.dither)
6254 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
6256 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
6257 val |= PIPECONF_INTERLACED_ILK;
6259 val |= PIPECONF_PROGRESSIVE;
6261 if (intel_crtc->config.limited_color_range)
6262 val |= PIPECONF_COLOR_RANGE_SELECT;
6264 I915_WRITE(PIPECONF(pipe), val);
6265 POSTING_READ(PIPECONF(pipe));
6269 * Set up the pipe CSC unit.
6271 * Currently only full range RGB to limited range RGB conversion
6272 * is supported, but eventually this should handle various
6273 * RGB<->YCbCr scenarios as well.
6275 static void intel_set_pipe_csc(struct drm_crtc *crtc)
6277 struct drm_device *dev = crtc->dev;
6278 struct drm_i915_private *dev_priv = dev->dev_private;
6279 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6280 int pipe = intel_crtc->pipe;
6281 uint16_t coeff = 0x7800; /* 1.0 */
6284 * TODO: Check what kind of values actually come out of the pipe
6285 * with these coeff/postoff values and adjust to get the best
6286 * accuracy. Perhaps we even need to take the bpc value into
6290 if (intel_crtc->config.limited_color_range)
6291 coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
6294 * GY/GU and RY/RU should be the other way around according
6295 * to BSpec, but reality doesn't agree. Just set them up in
6296 * a way that results in the correct picture.
6298 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
6299 I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
6301 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
6302 I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
6304 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
6305 I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
6307 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
6308 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
6309 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
6311 if (INTEL_INFO(dev)->gen > 6) {
6312 uint16_t postoff = 0;
6314 if (intel_crtc->config.limited_color_range)
6315 postoff = (16 * (1 << 12) / 255) & 0x1fff;
6317 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
6318 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
6319 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
6321 I915_WRITE(PIPE_CSC_MODE(pipe), 0);
6323 uint32_t mode = CSC_MODE_YUV_TO_RGB;
6325 if (intel_crtc->config.limited_color_range)
6326 mode |= CSC_BLACK_SCREEN_OFFSET;
6328 I915_WRITE(PIPE_CSC_MODE(pipe), mode);
6332 static void haswell_set_pipeconf(struct drm_crtc *crtc)
6334 struct drm_device *dev = crtc->dev;
6335 struct drm_i915_private *dev_priv = dev->dev_private;
6336 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6337 enum pipe pipe = intel_crtc->pipe;
6338 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
6343 if (IS_HASWELL(dev) && intel_crtc->config.dither)
6344 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
6346 if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
6347 val |= PIPECONF_INTERLACED_ILK;
6349 val |= PIPECONF_PROGRESSIVE;
6351 I915_WRITE(PIPECONF(cpu_transcoder), val);
6352 POSTING_READ(PIPECONF(cpu_transcoder));
6354 I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT);
6355 POSTING_READ(GAMMA_MODE(intel_crtc->pipe));
6357 if (IS_BROADWELL(dev)) {
6360 switch (intel_crtc->config.pipe_bpp) {
6362 val |= PIPEMISC_DITHER_6_BPC;
6365 val |= PIPEMISC_DITHER_8_BPC;
6368 val |= PIPEMISC_DITHER_10_BPC;
6371 val |= PIPEMISC_DITHER_12_BPC;
6374 /* Case prevented by pipe_config_set_bpp. */
6378 if (intel_crtc->config.dither)
6379 val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP;
6381 I915_WRITE(PIPEMISC(pipe), val);
6385 static bool ironlake_compute_clocks(struct drm_crtc *crtc,
6386 intel_clock_t *clock,
6387 bool *has_reduced_clock,
6388 intel_clock_t *reduced_clock)
6390 struct drm_device *dev = crtc->dev;
6391 struct drm_i915_private *dev_priv = dev->dev_private;
6392 struct intel_encoder *intel_encoder;
6394 const intel_limit_t *limit;
6395 bool ret, is_lvds = false;
6397 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
6398 switch (intel_encoder->type) {
6399 case INTEL_OUTPUT_LVDS:
6405 refclk = ironlake_get_refclk(crtc);
6408 * Returns a set of divisors for the desired target clock with the given
6409 * refclk, or FALSE. The returned values represent the clock equation:
6410 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
6412 limit = intel_limit(crtc, refclk);
6413 ret = dev_priv->display.find_dpll(limit, crtc,
6414 to_intel_crtc(crtc)->config.port_clock,
6415 refclk, NULL, clock);
6419 if (is_lvds && dev_priv->lvds_downclock_avail) {
6421 * Ensure we match the reduced clock's P to the target clock.
6422 * If the clocks don't match, we can't switch the display clock
6423 * by using the FP0/FP1. In such case we will disable the LVDS
6424 * downclock feature.
6426 *has_reduced_clock =
6427 dev_priv->display.find_dpll(limit, crtc,
6428 dev_priv->lvds_downclock,
6436 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
6439 * Account for spread spectrum to avoid
6440 * oversubscribing the link. Max center spread
6441 * is 2.5%; use 5% for safety's sake.
6443 u32 bps = target_clock * bpp * 21 / 20;
6444 return DIV_ROUND_UP(bps, link_bw * 8);
6447 static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
6449 return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
6452 static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
6454 intel_clock_t *reduced_clock, u32 *fp2)
6456 struct drm_crtc *crtc = &intel_crtc->base;
6457 struct drm_device *dev = crtc->dev;
6458 struct drm_i915_private *dev_priv = dev->dev_private;
6459 struct intel_encoder *intel_encoder;
6461 int factor, num_connectors = 0;
6462 bool is_lvds = false, is_sdvo = false;
6464 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
6465 switch (intel_encoder->type) {
6466 case INTEL_OUTPUT_LVDS:
6469 case INTEL_OUTPUT_SDVO:
6470 case INTEL_OUTPUT_HDMI:
6478 /* Enable autotuning of the PLL clock (if permissible) */
6481 if ((intel_panel_use_ssc(dev_priv) &&
6482 dev_priv->vbt.lvds_ssc_freq == 100000) ||
6483 (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
6485 } else if (intel_crtc->config.sdvo_tv_clock)
6488 if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor))
6491 if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
6497 dpll |= DPLLB_MODE_LVDS;
6499 dpll |= DPLLB_MODE_DAC_SERIAL;
6501 dpll |= (intel_crtc->config.pixel_multiplier - 1)
6502 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
6505 dpll |= DPLL_SDVO_HIGH_SPEED;
6506 if (intel_crtc->config.has_dp_encoder)
6507 dpll |= DPLL_SDVO_HIGH_SPEED;
6509 /* compute bitmask from p1 value */
6510 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
6512 dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
6514 switch (intel_crtc->config.dpll.p2) {
6516 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
6519 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
6522 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
6525 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
6529 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
6530 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
6532 dpll |= PLL_REF_INPUT_DREFCLK;
6534 return dpll | DPLL_VCO_ENABLE;
6537 static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
6539 struct drm_framebuffer *fb)
6541 struct drm_device *dev = crtc->dev;
6542 struct drm_i915_private *dev_priv = dev->dev_private;
6543 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6544 int pipe = intel_crtc->pipe;
6545 int plane = intel_crtc->plane;
6546 int num_connectors = 0;
6547 intel_clock_t clock, reduced_clock;
6548 u32 dpll = 0, fp = 0, fp2 = 0;
6549 bool ok, has_reduced_clock = false;
6550 bool is_lvds = false;
6551 struct intel_encoder *encoder;
6552 struct intel_shared_dpll *pll;
6555 for_each_encoder_on_crtc(dev, crtc, encoder) {
6556 switch (encoder->type) {
6557 case INTEL_OUTPUT_LVDS:
6565 WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
6566 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
6568 ok = ironlake_compute_clocks(crtc, &clock,
6569 &has_reduced_clock, &reduced_clock);
6570 if (!ok && !intel_crtc->config.clock_set) {
6571 DRM_ERROR("Couldn't find PLL settings for mode!\n");
6574 /* Compat-code for transition, will disappear. */
6575 if (!intel_crtc->config.clock_set) {
6576 intel_crtc->config.dpll.n = clock.n;
6577 intel_crtc->config.dpll.m1 = clock.m1;
6578 intel_crtc->config.dpll.m2 = clock.m2;
6579 intel_crtc->config.dpll.p1 = clock.p1;
6580 intel_crtc->config.dpll.p2 = clock.p2;
6583 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
6584 if (intel_crtc->config.has_pch_encoder) {
6585 fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
6586 if (has_reduced_clock)
6587 fp2 = i9xx_dpll_compute_fp(&reduced_clock);
6589 dpll = ironlake_compute_dpll(intel_crtc,
6590 &fp, &reduced_clock,
6591 has_reduced_clock ? &fp2 : NULL);
6593 intel_crtc->config.dpll_hw_state.dpll = dpll;
6594 intel_crtc->config.dpll_hw_state.fp0 = fp;
6595 if (has_reduced_clock)
6596 intel_crtc->config.dpll_hw_state.fp1 = fp2;
6598 intel_crtc->config.dpll_hw_state.fp1 = fp;
6600 pll = intel_get_shared_dpll(intel_crtc);
6602 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
6607 intel_put_shared_dpll(intel_crtc);
6609 if (intel_crtc->config.has_dp_encoder)
6610 intel_dp_set_m_n(intel_crtc);
6612 if (is_lvds && has_reduced_clock && i915.powersave)
6613 intel_crtc->lowfreq_avail = true;
6615 intel_crtc->lowfreq_avail = false;
6617 intel_set_pipe_timings(intel_crtc);
6619 if (intel_crtc->config.has_pch_encoder) {
6620 intel_cpu_transcoder_set_m_n(intel_crtc,
6621 &intel_crtc->config.fdi_m_n);
6624 ironlake_set_pipeconf(crtc);
6626 /* Set up the display plane register */
6627 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
6628 POSTING_READ(DSPCNTR(plane));
6630 ret = intel_pipe_set_base(crtc, x, y, fb);
6635 static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc,
6636 struct intel_link_m_n *m_n)
6638 struct drm_device *dev = crtc->base.dev;
6639 struct drm_i915_private *dev_priv = dev->dev_private;
6640 enum pipe pipe = crtc->pipe;
6642 m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe));
6643 m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe));
6644 m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe))
6646 m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe));
6647 m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe))
6648 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
6651 static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc,
6652 enum transcoder transcoder,
6653 struct intel_link_m_n *m_n)
6655 struct drm_device *dev = crtc->base.dev;
6656 struct drm_i915_private *dev_priv = dev->dev_private;
6657 enum pipe pipe = crtc->pipe;
6659 if (INTEL_INFO(dev)->gen >= 5) {
6660 m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder));
6661 m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder));
6662 m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder))
6664 m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder));
6665 m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder))
6666 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
6668 m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe));
6669 m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe));
6670 m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe))
6672 m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe));
6673 m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe))
6674 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
6678 void intel_dp_get_m_n(struct intel_crtc *crtc,
6679 struct intel_crtc_config *pipe_config)
6681 if (crtc->config.has_pch_encoder)
6682 intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n);
6684 intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
6685 &pipe_config->dp_m_n);
6688 static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc,
6689 struct intel_crtc_config *pipe_config)
6691 intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
6692 &pipe_config->fdi_m_n);
6695 static void ironlake_get_pfit_config(struct intel_crtc *crtc,
6696 struct intel_crtc_config *pipe_config)
6698 struct drm_device *dev = crtc->base.dev;
6699 struct drm_i915_private *dev_priv = dev->dev_private;
6702 tmp = I915_READ(PF_CTL(crtc->pipe));
6704 if (tmp & PF_ENABLE) {
6705 pipe_config->pch_pfit.enabled = true;
6706 pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe));
6707 pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe));
6709 /* We currently do not free assignements of panel fitters on
6710 * ivb/hsw (since we don't use the higher upscaling modes which
6711 * differentiates them) so just WARN about this case for now. */
6713 WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) !=
6714 PF_PIPE_SEL_IVB(crtc->pipe));
6719 static void ironlake_get_plane_config(struct intel_crtc *crtc,
6720 struct intel_plane_config *plane_config)
6722 struct drm_device *dev = crtc->base.dev;
6723 struct drm_i915_private *dev_priv = dev->dev_private;
6724 u32 val, base, offset;
6725 int pipe = crtc->pipe, plane = crtc->plane;
6726 int fourcc, pixel_format;
6729 crtc->base.primary->fb = kzalloc(sizeof(struct intel_framebuffer), GFP_KERNEL);
6730 if (!crtc->base.primary->fb) {
6731 DRM_DEBUG_KMS("failed to alloc fb\n");
6735 val = I915_READ(DSPCNTR(plane));
6737 if (INTEL_INFO(dev)->gen >= 4)
6738 if (val & DISPPLANE_TILED)
6739 plane_config->tiled = true;
6741 pixel_format = val & DISPPLANE_PIXFORMAT_MASK;
6742 fourcc = intel_format_to_fourcc(pixel_format);
6743 crtc->base.primary->fb->pixel_format = fourcc;
6744 crtc->base.primary->fb->bits_per_pixel =
6745 drm_format_plane_cpp(fourcc, 0) * 8;
6747 base = I915_READ(DSPSURF(plane)) & 0xfffff000;
6748 if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
6749 offset = I915_READ(DSPOFFSET(plane));
6751 if (plane_config->tiled)
6752 offset = I915_READ(DSPTILEOFF(plane));
6754 offset = I915_READ(DSPLINOFF(plane));
6756 plane_config->base = base;
6758 val = I915_READ(PIPESRC(pipe));
6759 crtc->base.primary->fb->width = ((val >> 16) & 0xfff) + 1;
6760 crtc->base.primary->fb->height = ((val >> 0) & 0xfff) + 1;
6762 val = I915_READ(DSPSTRIDE(pipe));
6763 crtc->base.primary->fb->pitches[0] = val & 0xffffff80;
6765 aligned_height = intel_align_height(dev, crtc->base.primary->fb->height,
6766 plane_config->tiled);
6768 plane_config->size = ALIGN(crtc->base.primary->fb->pitches[0] *
6769 aligned_height, PAGE_SIZE);
6771 DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
6772 pipe, plane, crtc->base.primary->fb->width,
6773 crtc->base.primary->fb->height,
6774 crtc->base.primary->fb->bits_per_pixel, base,
6775 crtc->base.primary->fb->pitches[0],
6776 plane_config->size);
6779 static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
6780 struct intel_crtc_config *pipe_config)
6782 struct drm_device *dev = crtc->base.dev;
6783 struct drm_i915_private *dev_priv = dev->dev_private;
6786 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
6787 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
6789 tmp = I915_READ(PIPECONF(crtc->pipe));
6790 if (!(tmp & PIPECONF_ENABLE))
6793 switch (tmp & PIPECONF_BPC_MASK) {
6795 pipe_config->pipe_bpp = 18;
6798 pipe_config->pipe_bpp = 24;
6800 case PIPECONF_10BPC:
6801 pipe_config->pipe_bpp = 30;
6803 case PIPECONF_12BPC:
6804 pipe_config->pipe_bpp = 36;
6810 if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
6811 struct intel_shared_dpll *pll;
6813 pipe_config->has_pch_encoder = true;
6815 tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
6816 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
6817 FDI_DP_PORT_WIDTH_SHIFT) + 1;
6819 ironlake_get_fdi_m_n_config(crtc, pipe_config);
6821 if (HAS_PCH_IBX(dev_priv->dev)) {
6822 pipe_config->shared_dpll =
6823 (enum intel_dpll_id) crtc->pipe;
6825 tmp = I915_READ(PCH_DPLL_SEL);
6826 if (tmp & TRANS_DPLLB_SEL(crtc->pipe))
6827 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B;
6829 pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A;
6832 pll = &dev_priv->shared_dplls[pipe_config->shared_dpll];
6834 WARN_ON(!pll->get_hw_state(dev_priv, pll,
6835 &pipe_config->dpll_hw_state));
6837 tmp = pipe_config->dpll_hw_state.dpll;
6838 pipe_config->pixel_multiplier =
6839 ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK)
6840 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1;
6842 ironlake_pch_clock_get(crtc, pipe_config);
6844 pipe_config->pixel_multiplier = 1;
6847 intel_get_pipe_timings(crtc, pipe_config);
6849 ironlake_get_pfit_config(crtc, pipe_config);
6854 static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
6856 struct drm_device *dev = dev_priv->dev;
6857 struct intel_ddi_plls *plls = &dev_priv->ddi_plls;
6858 struct intel_crtc *crtc;
6860 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
6861 WARN(crtc->active, "CRTC for pipe %c enabled\n",
6862 pipe_name(crtc->pipe));
6864 WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n");
6865 WARN(plls->spll_refcount, "SPLL enabled\n");
6866 WARN(plls->wrpll1_refcount, "WRPLL1 enabled\n");
6867 WARN(plls->wrpll2_refcount, "WRPLL2 enabled\n");
6868 WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n");
6869 WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE,
6870 "CPU PWM1 enabled\n");
6871 WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE,
6872 "CPU PWM2 enabled\n");
6873 WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE,
6874 "PCH PWM1 enabled\n");
6875 WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
6876 "Utility pin enabled\n");
6877 WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n");
6880 * In theory we can still leave IRQs enabled, as long as only the HPD
6881 * interrupts remain enabled. We used to check for that, but since it's
6882 * gen-specific and since we only disable LCPLL after we fully disable
6883 * the interrupts, the check below should be enough.
6885 WARN(!dev_priv->pm.irqs_disabled, "IRQs enabled\n");
6888 static void hsw_write_dcomp(struct drm_i915_private *dev_priv, uint32_t val)
6890 struct drm_device *dev = dev_priv->dev;
6892 if (IS_HASWELL(dev)) {
6893 mutex_lock(&dev_priv->rps.hw_lock);
6894 if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP,
6896 DRM_ERROR("Failed to disable D_COMP\n");
6897 mutex_unlock(&dev_priv->rps.hw_lock);
6899 I915_WRITE(D_COMP, val);
6901 POSTING_READ(D_COMP);
6905 * This function implements pieces of two sequences from BSpec:
6906 * - Sequence for display software to disable LCPLL
6907 * - Sequence for display software to allow package C8+
6908 * The steps implemented here are just the steps that actually touch the LCPLL
6909 * register. Callers should take care of disabling all the display engine
6910 * functions, doing the mode unset, fixing interrupts, etc.
6912 static void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
6913 bool switch_to_fclk, bool allow_power_down)
6917 assert_can_disable_lcpll(dev_priv);
6919 val = I915_READ(LCPLL_CTL);
6921 if (switch_to_fclk) {
6922 val |= LCPLL_CD_SOURCE_FCLK;
6923 I915_WRITE(LCPLL_CTL, val);
6925 if (wait_for_atomic_us(I915_READ(LCPLL_CTL) &
6926 LCPLL_CD_SOURCE_FCLK_DONE, 1))
6927 DRM_ERROR("Switching to FCLK failed\n");
6929 val = I915_READ(LCPLL_CTL);
6932 val |= LCPLL_PLL_DISABLE;
6933 I915_WRITE(LCPLL_CTL, val);
6934 POSTING_READ(LCPLL_CTL);
6936 if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1))
6937 DRM_ERROR("LCPLL still locked\n");
6939 val = I915_READ(D_COMP);
6940 val |= D_COMP_COMP_DISABLE;
6941 hsw_write_dcomp(dev_priv, val);
6944 if (wait_for((I915_READ(D_COMP) & D_COMP_RCOMP_IN_PROGRESS) == 0, 1))
6945 DRM_ERROR("D_COMP RCOMP still in progress\n");
6947 if (allow_power_down) {
6948 val = I915_READ(LCPLL_CTL);
6949 val |= LCPLL_POWER_DOWN_ALLOW;
6950 I915_WRITE(LCPLL_CTL, val);
6951 POSTING_READ(LCPLL_CTL);
6956 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
6959 static void hsw_restore_lcpll(struct drm_i915_private *dev_priv)
6962 unsigned long irqflags;
6964 val = I915_READ(LCPLL_CTL);
6966 if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK |
6967 LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK)
6971 * Make sure we're not on PC8 state before disabling PC8, otherwise
6972 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
6974 * The other problem is that hsw_restore_lcpll() is called as part of
6975 * the runtime PM resume sequence, so we can't just call
6976 * gen6_gt_force_wake_get() because that function calls
6977 * intel_runtime_pm_get(), and we can't change the runtime PM refcount
6978 * while we are on the resume sequence. So to solve this problem we have
6979 * to call special forcewake code that doesn't touch runtime PM and
6980 * doesn't enable the forcewake delayed work.
6982 spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
6983 if (dev_priv->uncore.forcewake_count++ == 0)
6984 dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_ALL);
6985 spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
6987 if (val & LCPLL_POWER_DOWN_ALLOW) {
6988 val &= ~LCPLL_POWER_DOWN_ALLOW;
6989 I915_WRITE(LCPLL_CTL, val);
6990 POSTING_READ(LCPLL_CTL);
6993 val = I915_READ(D_COMP);
6994 val |= D_COMP_COMP_FORCE;
6995 val &= ~D_COMP_COMP_DISABLE;
6996 hsw_write_dcomp(dev_priv, val);
6998 val = I915_READ(LCPLL_CTL);
6999 val &= ~LCPLL_PLL_DISABLE;
7000 I915_WRITE(LCPLL_CTL, val);
7002 if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5))
7003 DRM_ERROR("LCPLL not locked yet\n");
7005 if (val & LCPLL_CD_SOURCE_FCLK) {
7006 val = I915_READ(LCPLL_CTL);
7007 val &= ~LCPLL_CD_SOURCE_FCLK;
7008 I915_WRITE(LCPLL_CTL, val);
7010 if (wait_for_atomic_us((I915_READ(LCPLL_CTL) &
7011 LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
7012 DRM_ERROR("Switching back to LCPLL failed\n");
7015 /* See the big comment above. */
7016 spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
7017 if (--dev_priv->uncore.forcewake_count == 0)
7018 dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_ALL);
7019 spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
7023 * Package states C8 and deeper are really deep PC states that can only be
7024 * reached when all the devices on the system allow it, so even if the graphics
7025 * device allows PC8+, it doesn't mean the system will actually get to these
7026 * states. Our driver only allows PC8+ when going into runtime PM.
7028 * The requirements for PC8+ are that all the outputs are disabled, the power
7029 * well is disabled and most interrupts are disabled, and these are also
7030 * requirements for runtime PM. When these conditions are met, we manually do
7031 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
7032 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
7035 * When we really reach PC8 or deeper states (not just when we allow it) we lose
7036 * the state of some registers, so when we come back from PC8+ we need to
7037 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
7038 * need to take care of the registers kept by RC6. Notice that this happens even
7039 * if we don't put the device in PCI D3 state (which is what currently happens
7040 * because of the runtime PM support).
7042 * For more, read "Display Sequences for Package C8" on the hardware
7045 void hsw_enable_pc8(struct drm_i915_private *dev_priv)
7047 struct drm_device *dev = dev_priv->dev;
7050 DRM_DEBUG_KMS("Enabling package C8+\n");
7052 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
7053 val = I915_READ(SOUTH_DSPCLK_GATE_D);
7054 val &= ~PCH_LP_PARTITION_LEVEL_DISABLE;
7055 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
7058 lpt_disable_clkout_dp(dev);
7059 intel_runtime_pm_disable_interrupts(dev);
7060 hsw_disable_lcpll(dev_priv, true, true);
7063 void hsw_disable_pc8(struct drm_i915_private *dev_priv)
7065 struct drm_device *dev = dev_priv->dev;
7068 DRM_DEBUG_KMS("Disabling package C8+\n");
7070 hsw_restore_lcpll(dev_priv);
7071 intel_runtime_pm_restore_interrupts(dev);
7072 lpt_init_pch_refclk(dev);
7074 if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
7075 val = I915_READ(SOUTH_DSPCLK_GATE_D);
7076 val |= PCH_LP_PARTITION_LEVEL_DISABLE;
7077 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
7080 intel_prepare_ddi(dev);
7081 i915_gem_init_swizzling(dev);
7082 mutex_lock(&dev_priv->rps.hw_lock);
7083 gen6_update_ring_freq(dev);
7084 mutex_unlock(&dev_priv->rps.hw_lock);
7087 static void snb_modeset_global_resources(struct drm_device *dev)
7089 modeset_update_crtc_power_domains(dev);
7092 static void haswell_modeset_global_resources(struct drm_device *dev)
7094 modeset_update_crtc_power_domains(dev);
7097 static int haswell_crtc_mode_set(struct drm_crtc *crtc,
7099 struct drm_framebuffer *fb)
7101 struct drm_device *dev = crtc->dev;
7102 struct drm_i915_private *dev_priv = dev->dev_private;
7103 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7104 int plane = intel_crtc->plane;
7107 if (!intel_ddi_pll_select(intel_crtc))
7109 intel_ddi_pll_enable(intel_crtc);
7111 if (intel_crtc->config.has_dp_encoder)
7112 intel_dp_set_m_n(intel_crtc);
7114 intel_crtc->lowfreq_avail = false;
7116 intel_set_pipe_timings(intel_crtc);
7118 if (intel_crtc->config.has_pch_encoder) {
7119 intel_cpu_transcoder_set_m_n(intel_crtc,
7120 &intel_crtc->config.fdi_m_n);
7123 haswell_set_pipeconf(crtc);
7125 intel_set_pipe_csc(crtc);
7127 /* Set up the display plane register */
7128 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
7129 POSTING_READ(DSPCNTR(plane));
7131 ret = intel_pipe_set_base(crtc, x, y, fb);
7136 static bool haswell_get_pipe_config(struct intel_crtc *crtc,
7137 struct intel_crtc_config *pipe_config)
7139 struct drm_device *dev = crtc->base.dev;
7140 struct drm_i915_private *dev_priv = dev->dev_private;
7141 enum intel_display_power_domain pfit_domain;
7144 if (!intel_display_power_enabled(dev_priv,
7145 POWER_DOMAIN_PIPE(crtc->pipe)))
7148 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
7149 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
7151 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
7152 if (tmp & TRANS_DDI_FUNC_ENABLE) {
7153 enum pipe trans_edp_pipe;
7154 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
7156 WARN(1, "unknown pipe linked to edp transcoder\n");
7157 case TRANS_DDI_EDP_INPUT_A_ONOFF:
7158 case TRANS_DDI_EDP_INPUT_A_ON:
7159 trans_edp_pipe = PIPE_A;
7161 case TRANS_DDI_EDP_INPUT_B_ONOFF:
7162 trans_edp_pipe = PIPE_B;
7164 case TRANS_DDI_EDP_INPUT_C_ONOFF:
7165 trans_edp_pipe = PIPE_C;
7169 if (trans_edp_pipe == crtc->pipe)
7170 pipe_config->cpu_transcoder = TRANSCODER_EDP;
7173 if (!intel_display_power_enabled(dev_priv,
7174 POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder)))
7177 tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder));
7178 if (!(tmp & PIPECONF_ENABLE))
7182 * Haswell has only FDI/PCH transcoder A. It is which is connected to
7183 * DDI E. So just check whether this pipe is wired to DDI E and whether
7184 * the PCH transcoder is on.
7186 tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
7187 if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
7188 I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
7189 pipe_config->has_pch_encoder = true;
7191 tmp = I915_READ(FDI_RX_CTL(PIPE_A));
7192 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
7193 FDI_DP_PORT_WIDTH_SHIFT) + 1;
7195 ironlake_get_fdi_m_n_config(crtc, pipe_config);
7198 intel_get_pipe_timings(crtc, pipe_config);
7200 pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
7201 if (intel_display_power_enabled(dev_priv, pfit_domain))
7202 ironlake_get_pfit_config(crtc, pipe_config);
7204 if (IS_HASWELL(dev))
7205 pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) &&
7206 (I915_READ(IPS_CTL) & IPS_ENABLE);
7208 pipe_config->pixel_multiplier = 1;
7213 static int intel_crtc_mode_set(struct drm_crtc *crtc,
7215 struct drm_framebuffer *fb)
7217 struct drm_device *dev = crtc->dev;
7218 struct drm_i915_private *dev_priv = dev->dev_private;
7219 struct intel_encoder *encoder;
7220 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7221 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
7222 int pipe = intel_crtc->pipe;
7225 drm_vblank_pre_modeset(dev, pipe);
7227 ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
7229 drm_vblank_post_modeset(dev, pipe);
7234 for_each_encoder_on_crtc(dev, crtc, encoder) {
7235 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
7236 encoder->base.base.id,
7237 drm_get_encoder_name(&encoder->base),
7238 mode->base.id, mode->name);
7239 encoder->mode_set(encoder);
7248 } hdmi_audio_clock[] = {
7249 { DIV_ROUND_UP(25200 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_25175 },
7250 { 25200, AUD_CONFIG_PIXEL_CLOCK_HDMI_25200 }, /* default per bspec */
7251 { 27000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27000 },
7252 { 27000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27027 },
7253 { 54000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54000 },
7254 { 54000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54054 },
7255 { DIV_ROUND_UP(74250 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_74176 },
7256 { 74250, AUD_CONFIG_PIXEL_CLOCK_HDMI_74250 },
7257 { DIV_ROUND_UP(148500 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_148352 },
7258 { 148500, AUD_CONFIG_PIXEL_CLOCK_HDMI_148500 },
7261 /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */
7262 static u32 audio_config_hdmi_pixel_clock(struct drm_display_mode *mode)
7266 for (i = 0; i < ARRAY_SIZE(hdmi_audio_clock); i++) {
7267 if (mode->clock == hdmi_audio_clock[i].clock)
7271 if (i == ARRAY_SIZE(hdmi_audio_clock)) {
7272 DRM_DEBUG_KMS("HDMI audio pixel clock setting for %d not found, falling back to defaults\n", mode->clock);
7276 DRM_DEBUG_KMS("Configuring HDMI audio for pixel clock %d (0x%08x)\n",
7277 hdmi_audio_clock[i].clock,
7278 hdmi_audio_clock[i].config);
7280 return hdmi_audio_clock[i].config;
7283 static bool intel_eld_uptodate(struct drm_connector *connector,
7284 int reg_eldv, uint32_t bits_eldv,
7285 int reg_elda, uint32_t bits_elda,
7288 struct drm_i915_private *dev_priv = connector->dev->dev_private;
7289 uint8_t *eld = connector->eld;
7292 i = I915_READ(reg_eldv);
7301 i = I915_READ(reg_elda);
7303 I915_WRITE(reg_elda, i);
7305 for (i = 0; i < eld[2]; i++)
7306 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
7312 static void g4x_write_eld(struct drm_connector *connector,
7313 struct drm_crtc *crtc,
7314 struct drm_display_mode *mode)
7316 struct drm_i915_private *dev_priv = connector->dev->dev_private;
7317 uint8_t *eld = connector->eld;
7322 i = I915_READ(G4X_AUD_VID_DID);
7324 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
7325 eldv = G4X_ELDV_DEVCL_DEVBLC;
7327 eldv = G4X_ELDV_DEVCTG;
7329 if (intel_eld_uptodate(connector,
7330 G4X_AUD_CNTL_ST, eldv,
7331 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
7332 G4X_HDMIW_HDMIEDID))
7335 i = I915_READ(G4X_AUD_CNTL_ST);
7336 i &= ~(eldv | G4X_ELD_ADDR);
7337 len = (i >> 9) & 0x1f; /* ELD buffer size */
7338 I915_WRITE(G4X_AUD_CNTL_ST, i);
7343 len = min_t(uint8_t, eld[2], len);
7344 DRM_DEBUG_DRIVER("ELD size %d\n", len);
7345 for (i = 0; i < len; i++)
7346 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
7348 i = I915_READ(G4X_AUD_CNTL_ST);
7350 I915_WRITE(G4X_AUD_CNTL_ST, i);
7353 static void haswell_write_eld(struct drm_connector *connector,
7354 struct drm_crtc *crtc,
7355 struct drm_display_mode *mode)
7357 struct drm_i915_private *dev_priv = connector->dev->dev_private;
7358 uint8_t *eld = connector->eld;
7359 struct drm_device *dev = crtc->dev;
7360 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7364 int pipe = to_intel_crtc(crtc)->pipe;
7367 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
7368 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
7369 int aud_config = HSW_AUD_CFG(pipe);
7370 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
7372 /* Audio output enable */
7373 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
7374 tmp = I915_READ(aud_cntrl_st2);
7375 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
7376 I915_WRITE(aud_cntrl_st2, tmp);
7378 /* Wait for 1 vertical blank */
7379 intel_wait_for_vblank(dev, pipe);
7381 /* Set ELD valid state */
7382 tmp = I915_READ(aud_cntrl_st2);
7383 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp);
7384 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
7385 I915_WRITE(aud_cntrl_st2, tmp);
7386 tmp = I915_READ(aud_cntrl_st2);
7387 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp);
7389 /* Enable HDMI mode */
7390 tmp = I915_READ(aud_config);
7391 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp);
7392 /* clear N_programing_enable and N_value_index */
7393 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
7394 I915_WRITE(aud_config, tmp);
7396 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
7398 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
7399 intel_crtc->eld_vld = true;
7401 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
7402 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
7403 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
7404 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
7406 I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode));
7409 if (intel_eld_uptodate(connector,
7410 aud_cntrl_st2, eldv,
7411 aud_cntl_st, IBX_ELD_ADDRESS,
7415 i = I915_READ(aud_cntrl_st2);
7417 I915_WRITE(aud_cntrl_st2, i);
7422 i = I915_READ(aud_cntl_st);
7423 i &= ~IBX_ELD_ADDRESS;
7424 I915_WRITE(aud_cntl_st, i);
7425 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
7426 DRM_DEBUG_DRIVER("port num:%d\n", i);
7428 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
7429 DRM_DEBUG_DRIVER("ELD size %d\n", len);
7430 for (i = 0; i < len; i++)
7431 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
7433 i = I915_READ(aud_cntrl_st2);
7435 I915_WRITE(aud_cntrl_st2, i);
7439 static void ironlake_write_eld(struct drm_connector *connector,
7440 struct drm_crtc *crtc,
7441 struct drm_display_mode *mode)
7443 struct drm_i915_private *dev_priv = connector->dev->dev_private;
7444 uint8_t *eld = connector->eld;
7452 int pipe = to_intel_crtc(crtc)->pipe;
7454 if (HAS_PCH_IBX(connector->dev)) {
7455 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
7456 aud_config = IBX_AUD_CFG(pipe);
7457 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
7458 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
7459 } else if (IS_VALLEYVIEW(connector->dev)) {
7460 hdmiw_hdmiedid = VLV_HDMIW_HDMIEDID(pipe);
7461 aud_config = VLV_AUD_CFG(pipe);
7462 aud_cntl_st = VLV_AUD_CNTL_ST(pipe);
7463 aud_cntrl_st2 = VLV_AUD_CNTL_ST2;
7465 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
7466 aud_config = CPT_AUD_CFG(pipe);
7467 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
7468 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
7471 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
7473 if (IS_VALLEYVIEW(connector->dev)) {
7474 struct intel_encoder *intel_encoder;
7475 struct intel_digital_port *intel_dig_port;
7477 intel_encoder = intel_attached_encoder(connector);
7478 intel_dig_port = enc_to_dig_port(&intel_encoder->base);
7479 i = intel_dig_port->port;
7481 i = I915_READ(aud_cntl_st);
7482 i = (i >> 29) & DIP_PORT_SEL_MASK;
7483 /* DIP_Port_Select, 0x1 = PortB */
7487 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
7488 /* operate blindly on all ports */
7489 eldv = IBX_ELD_VALIDB;
7490 eldv |= IBX_ELD_VALIDB << 4;
7491 eldv |= IBX_ELD_VALIDB << 8;
7493 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i));
7494 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
7497 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
7498 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
7499 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
7500 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
7502 I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode));
7505 if (intel_eld_uptodate(connector,
7506 aud_cntrl_st2, eldv,
7507 aud_cntl_st, IBX_ELD_ADDRESS,
7511 i = I915_READ(aud_cntrl_st2);
7513 I915_WRITE(aud_cntrl_st2, i);
7518 i = I915_READ(aud_cntl_st);
7519 i &= ~IBX_ELD_ADDRESS;
7520 I915_WRITE(aud_cntl_st, i);
7522 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
7523 DRM_DEBUG_DRIVER("ELD size %d\n", len);
7524 for (i = 0; i < len; i++)
7525 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
7527 i = I915_READ(aud_cntrl_st2);
7529 I915_WRITE(aud_cntrl_st2, i);
7532 void intel_write_eld(struct drm_encoder *encoder,
7533 struct drm_display_mode *mode)
7535 struct drm_crtc *crtc = encoder->crtc;
7536 struct drm_connector *connector;
7537 struct drm_device *dev = encoder->dev;
7538 struct drm_i915_private *dev_priv = dev->dev_private;
7540 connector = drm_select_eld(encoder, mode);
7544 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7546 drm_get_connector_name(connector),
7547 connector->encoder->base.id,
7548 drm_get_encoder_name(connector->encoder));
7550 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
7552 if (dev_priv->display.write_eld)
7553 dev_priv->display.write_eld(connector, crtc, mode);
7556 static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
7558 struct drm_device *dev = crtc->dev;
7559 struct drm_i915_private *dev_priv = dev->dev_private;
7560 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7561 bool visible = base != 0;
7564 if (intel_crtc->cursor_visible == visible)
7567 cntl = I915_READ(_CURACNTR);
7569 /* On these chipsets we can only modify the base whilst
7570 * the cursor is disabled.
7572 I915_WRITE(_CURABASE, base);
7574 cntl &= ~(CURSOR_FORMAT_MASK);
7575 /* XXX width must be 64, stride 256 => 0x00 << 28 */
7576 cntl |= CURSOR_ENABLE |
7577 CURSOR_GAMMA_ENABLE |
7580 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
7581 I915_WRITE(_CURACNTR, cntl);
7583 intel_crtc->cursor_visible = visible;
7586 static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
7588 struct drm_device *dev = crtc->dev;
7589 struct drm_i915_private *dev_priv = dev->dev_private;
7590 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7591 int pipe = intel_crtc->pipe;
7592 bool visible = base != 0;
7594 if (intel_crtc->cursor_visible != visible) {
7595 int16_t width = intel_crtc->cursor_width;
7596 uint32_t cntl = I915_READ(CURCNTR(pipe));
7598 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
7599 cntl |= MCURSOR_GAMMA_ENABLE;
7603 cntl |= CURSOR_MODE_64_ARGB_AX;
7606 cntl |= CURSOR_MODE_128_ARGB_AX;
7609 cntl |= CURSOR_MODE_256_ARGB_AX;
7615 cntl |= pipe << 28; /* Connect to correct pipe */
7617 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
7618 cntl |= CURSOR_MODE_DISABLE;
7620 I915_WRITE(CURCNTR(pipe), cntl);
7622 intel_crtc->cursor_visible = visible;
7624 /* and commit changes on next vblank */
7625 POSTING_READ(CURCNTR(pipe));
7626 I915_WRITE(CURBASE(pipe), base);
7627 POSTING_READ(CURBASE(pipe));
7630 static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
7632 struct drm_device *dev = crtc->dev;
7633 struct drm_i915_private *dev_priv = dev->dev_private;
7634 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7635 int pipe = intel_crtc->pipe;
7636 bool visible = base != 0;
7638 if (intel_crtc->cursor_visible != visible) {
7639 int16_t width = intel_crtc->cursor_width;
7640 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
7642 cntl &= ~CURSOR_MODE;
7643 cntl |= MCURSOR_GAMMA_ENABLE;
7646 cntl |= CURSOR_MODE_64_ARGB_AX;
7649 cntl |= CURSOR_MODE_128_ARGB_AX;
7652 cntl |= CURSOR_MODE_256_ARGB_AX;
7659 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
7660 cntl |= CURSOR_MODE_DISABLE;
7662 if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
7663 cntl |= CURSOR_PIPE_CSC_ENABLE;
7664 cntl &= ~CURSOR_TRICKLE_FEED_DISABLE;
7666 I915_WRITE(CURCNTR_IVB(pipe), cntl);
7668 intel_crtc->cursor_visible = visible;
7670 /* and commit changes on next vblank */
7671 POSTING_READ(CURCNTR_IVB(pipe));
7672 I915_WRITE(CURBASE_IVB(pipe), base);
7673 POSTING_READ(CURBASE_IVB(pipe));
7676 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
7677 static void intel_crtc_update_cursor(struct drm_crtc *crtc,
7680 struct drm_device *dev = crtc->dev;
7681 struct drm_i915_private *dev_priv = dev->dev_private;
7682 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7683 int pipe = intel_crtc->pipe;
7684 int x = intel_crtc->cursor_x;
7685 int y = intel_crtc->cursor_y;
7686 u32 base = 0, pos = 0;
7690 base = intel_crtc->cursor_addr;
7692 if (x >= intel_crtc->config.pipe_src_w)
7695 if (y >= intel_crtc->config.pipe_src_h)
7699 if (x + intel_crtc->cursor_width <= 0)
7702 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
7705 pos |= x << CURSOR_X_SHIFT;
7708 if (y + intel_crtc->cursor_height <= 0)
7711 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
7714 pos |= y << CURSOR_Y_SHIFT;
7716 visible = base != 0;
7717 if (!visible && !intel_crtc->cursor_visible)
7720 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev) || IS_BROADWELL(dev)) {
7721 I915_WRITE(CURPOS_IVB(pipe), pos);
7722 ivb_update_cursor(crtc, base);
7724 I915_WRITE(CURPOS(pipe), pos);
7725 if (IS_845G(dev) || IS_I865G(dev))
7726 i845_update_cursor(crtc, base);
7728 i9xx_update_cursor(crtc, base);
7732 static int intel_crtc_cursor_set(struct drm_crtc *crtc,
7733 struct drm_file *file,
7735 uint32_t width, uint32_t height)
7737 struct drm_device *dev = crtc->dev;
7738 struct drm_i915_private *dev_priv = dev->dev_private;
7739 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7740 struct drm_i915_gem_object *obj;
7745 /* if we want to turn off the cursor ignore width and height */
7747 DRM_DEBUG_KMS("cursor off\n");
7750 mutex_lock(&dev->struct_mutex);
7754 /* Check for which cursor types we support */
7755 if (!((width == 64 && height == 64) ||
7756 (width == 128 && height == 128 && !IS_GEN2(dev)) ||
7757 (width == 256 && height == 256 && !IS_GEN2(dev)))) {
7758 DRM_DEBUG("Cursor dimension not supported\n");
7762 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
7763 if (&obj->base == NULL)
7766 if (obj->base.size < width * height * 4) {
7767 DRM_DEBUG_KMS("buffer is to small\n");
7772 /* we only need to pin inside GTT if cursor is non-phy */
7773 mutex_lock(&dev->struct_mutex);
7774 if (!INTEL_INFO(dev)->cursor_needs_physical) {
7777 if (obj->tiling_mode) {
7778 DRM_DEBUG_KMS("cursor cannot be tiled\n");
7783 /* Note that the w/a also requires 2 PTE of padding following
7784 * the bo. We currently fill all unused PTE with the shadow
7785 * page and so we should always have valid PTE following the
7786 * cursor preventing the VT-d warning.
7789 if (need_vtd_wa(dev))
7790 alignment = 64*1024;
7792 ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
7794 DRM_DEBUG_KMS("failed to move cursor bo into the GTT\n");
7798 ret = i915_gem_object_put_fence(obj);
7800 DRM_DEBUG_KMS("failed to release fence for cursor");
7804 addr = i915_gem_obj_ggtt_offset(obj);
7806 int align = IS_I830(dev) ? 16 * 1024 : 256;
7807 ret = i915_gem_attach_phys_object(dev, obj,
7808 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
7811 DRM_DEBUG_KMS("failed to attach phys object\n");
7814 addr = obj->phys_obj->handle->busaddr;
7818 I915_WRITE(CURSIZE, (height << 12) | width);
7821 if (intel_crtc->cursor_bo) {
7822 if (INTEL_INFO(dev)->cursor_needs_physical) {
7823 if (intel_crtc->cursor_bo != obj)
7824 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
7826 i915_gem_object_unpin_from_display_plane(intel_crtc->cursor_bo);
7827 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
7830 mutex_unlock(&dev->struct_mutex);
7832 old_width = intel_crtc->cursor_width;
7834 intel_crtc->cursor_addr = addr;
7835 intel_crtc->cursor_bo = obj;
7836 intel_crtc->cursor_width = width;
7837 intel_crtc->cursor_height = height;
7839 if (intel_crtc->active) {
7840 if (old_width != width)
7841 intel_update_watermarks(crtc);
7842 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
7847 i915_gem_object_unpin_from_display_plane(obj);
7849 mutex_unlock(&dev->struct_mutex);
7851 drm_gem_object_unreference_unlocked(&obj->base);
7855 static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
7857 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7859 intel_crtc->cursor_x = clamp_t(int, x, SHRT_MIN, SHRT_MAX);
7860 intel_crtc->cursor_y = clamp_t(int, y, SHRT_MIN, SHRT_MAX);
7862 if (intel_crtc->active)
7863 intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
7868 static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
7869 u16 *blue, uint32_t start, uint32_t size)
7871 int end = (start + size > 256) ? 256 : start + size, i;
7872 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7874 for (i = start; i < end; i++) {
7875 intel_crtc->lut_r[i] = red[i] >> 8;
7876 intel_crtc->lut_g[i] = green[i] >> 8;
7877 intel_crtc->lut_b[i] = blue[i] >> 8;
7880 intel_crtc_load_lut(crtc);
7883 /* VESA 640x480x72Hz mode to set on the pipe */
7884 static struct drm_display_mode load_detect_mode = {
7885 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
7886 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
7889 struct drm_framebuffer *
7890 __intel_framebuffer_create(struct drm_device *dev,
7891 struct drm_mode_fb_cmd2 *mode_cmd,
7892 struct drm_i915_gem_object *obj)
7894 struct intel_framebuffer *intel_fb;
7897 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
7899 drm_gem_object_unreference_unlocked(&obj->base);
7900 return ERR_PTR(-ENOMEM);
7903 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
7907 return &intel_fb->base;
7909 drm_gem_object_unreference_unlocked(&obj->base);
7912 return ERR_PTR(ret);
7915 static struct drm_framebuffer *
7916 intel_framebuffer_create(struct drm_device *dev,
7917 struct drm_mode_fb_cmd2 *mode_cmd,
7918 struct drm_i915_gem_object *obj)
7920 struct drm_framebuffer *fb;
7923 ret = i915_mutex_lock_interruptible(dev);
7925 return ERR_PTR(ret);
7926 fb = __intel_framebuffer_create(dev, mode_cmd, obj);
7927 mutex_unlock(&dev->struct_mutex);
7933 intel_framebuffer_pitch_for_width(int width, int bpp)
7935 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
7936 return ALIGN(pitch, 64);
7940 intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
7942 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
7943 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
7946 static struct drm_framebuffer *
7947 intel_framebuffer_create_for_mode(struct drm_device *dev,
7948 struct drm_display_mode *mode,
7951 struct drm_i915_gem_object *obj;
7952 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
7954 obj = i915_gem_alloc_object(dev,
7955 intel_framebuffer_size_for_mode(mode, bpp));
7957 return ERR_PTR(-ENOMEM);
7959 mode_cmd.width = mode->hdisplay;
7960 mode_cmd.height = mode->vdisplay;
7961 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
7963 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
7965 return intel_framebuffer_create(dev, &mode_cmd, obj);
7968 static struct drm_framebuffer *
7969 mode_fits_in_fbdev(struct drm_device *dev,
7970 struct drm_display_mode *mode)
7972 #ifdef CONFIG_DRM_I915_FBDEV
7973 struct drm_i915_private *dev_priv = dev->dev_private;
7974 struct drm_i915_gem_object *obj;
7975 struct drm_framebuffer *fb;
7977 if (!dev_priv->fbdev)
7980 if (!dev_priv->fbdev->fb)
7983 obj = dev_priv->fbdev->fb->obj;
7986 fb = &dev_priv->fbdev->fb->base;
7987 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
7988 fb->bits_per_pixel))
7991 if (obj->base.size < mode->vdisplay * fb->pitches[0])
8000 bool intel_get_load_detect_pipe(struct drm_connector *connector,
8001 struct drm_display_mode *mode,
8002 struct intel_load_detect_pipe *old)
8004 struct intel_crtc *intel_crtc;
8005 struct intel_encoder *intel_encoder =
8006 intel_attached_encoder(connector);
8007 struct drm_crtc *possible_crtc;
8008 struct drm_encoder *encoder = &intel_encoder->base;
8009 struct drm_crtc *crtc = NULL;
8010 struct drm_device *dev = encoder->dev;
8011 struct drm_framebuffer *fb;
8014 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8015 connector->base.id, drm_get_connector_name(connector),
8016 encoder->base.id, drm_get_encoder_name(encoder));
8019 * Algorithm gets a little messy:
8021 * - if the connector already has an assigned crtc, use it (but make
8022 * sure it's on first)
8024 * - try to find the first unused crtc that can drive this connector,
8025 * and use that if we find one
8028 /* See if we already have a CRTC for this connector */
8029 if (encoder->crtc) {
8030 crtc = encoder->crtc;
8032 mutex_lock(&crtc->mutex);
8034 old->dpms_mode = connector->dpms;
8035 old->load_detect_temp = false;
8037 /* Make sure the crtc and connector are running */
8038 if (connector->dpms != DRM_MODE_DPMS_ON)
8039 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
8044 /* Find an unused one (if possible) */
8045 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
8047 if (!(encoder->possible_crtcs & (1 << i)))
8049 if (!possible_crtc->enabled) {
8050 crtc = possible_crtc;
8056 * If we didn't find an unused CRTC, don't use any.
8059 DRM_DEBUG_KMS("no pipe available for load-detect\n");
8063 mutex_lock(&crtc->mutex);
8064 intel_encoder->new_crtc = to_intel_crtc(crtc);
8065 to_intel_connector(connector)->new_encoder = intel_encoder;
8067 intel_crtc = to_intel_crtc(crtc);
8068 intel_crtc->new_enabled = true;
8069 intel_crtc->new_config = &intel_crtc->config;
8070 old->dpms_mode = connector->dpms;
8071 old->load_detect_temp = true;
8072 old->release_fb = NULL;
8075 mode = &load_detect_mode;
8077 /* We need a framebuffer large enough to accommodate all accesses
8078 * that the plane may generate whilst we perform load detection.
8079 * We can not rely on the fbcon either being present (we get called
8080 * during its initialisation to detect all boot displays, or it may
8081 * not even exist) or that it is large enough to satisfy the
8084 fb = mode_fits_in_fbdev(dev, mode);
8086 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
8087 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
8088 old->release_fb = fb;
8090 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
8092 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
8096 if (intel_set_mode(crtc, mode, 0, 0, fb)) {
8097 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
8098 if (old->release_fb)
8099 old->release_fb->funcs->destroy(old->release_fb);
8103 /* let the connector get through one full cycle before testing */
8104 intel_wait_for_vblank(dev, intel_crtc->pipe);
8108 intel_crtc->new_enabled = crtc->enabled;
8109 if (intel_crtc->new_enabled)
8110 intel_crtc->new_config = &intel_crtc->config;
8112 intel_crtc->new_config = NULL;
8113 mutex_unlock(&crtc->mutex);
8117 void intel_release_load_detect_pipe(struct drm_connector *connector,
8118 struct intel_load_detect_pipe *old)
8120 struct intel_encoder *intel_encoder =
8121 intel_attached_encoder(connector);
8122 struct drm_encoder *encoder = &intel_encoder->base;
8123 struct drm_crtc *crtc = encoder->crtc;
8124 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8126 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8127 connector->base.id, drm_get_connector_name(connector),
8128 encoder->base.id, drm_get_encoder_name(encoder));
8130 if (old->load_detect_temp) {
8131 to_intel_connector(connector)->new_encoder = NULL;
8132 intel_encoder->new_crtc = NULL;
8133 intel_crtc->new_enabled = false;
8134 intel_crtc->new_config = NULL;
8135 intel_set_mode(crtc, NULL, 0, 0, NULL);
8137 if (old->release_fb) {
8138 drm_framebuffer_unregister_private(old->release_fb);
8139 drm_framebuffer_unreference(old->release_fb);
8142 mutex_unlock(&crtc->mutex);
8146 /* Switch crtc and encoder back off if necessary */
8147 if (old->dpms_mode != DRM_MODE_DPMS_ON)
8148 connector->funcs->dpms(connector, old->dpms_mode);
8150 mutex_unlock(&crtc->mutex);
8153 static int i9xx_pll_refclk(struct drm_device *dev,
8154 const struct intel_crtc_config *pipe_config)
8156 struct drm_i915_private *dev_priv = dev->dev_private;
8157 u32 dpll = pipe_config->dpll_hw_state.dpll;
8159 if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN)
8160 return dev_priv->vbt.lvds_ssc_freq;
8161 else if (HAS_PCH_SPLIT(dev))
8163 else if (!IS_GEN2(dev))
8169 /* Returns the clock of the currently programmed mode of the given pipe. */
8170 static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
8171 struct intel_crtc_config *pipe_config)
8173 struct drm_device *dev = crtc->base.dev;
8174 struct drm_i915_private *dev_priv = dev->dev_private;
8175 int pipe = pipe_config->cpu_transcoder;
8176 u32 dpll = pipe_config->dpll_hw_state.dpll;
8178 intel_clock_t clock;
8179 int refclk = i9xx_pll_refclk(dev, pipe_config);
8181 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
8182 fp = pipe_config->dpll_hw_state.fp0;
8184 fp = pipe_config->dpll_hw_state.fp1;
8186 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
8187 if (IS_PINEVIEW(dev)) {
8188 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
8189 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
8191 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
8192 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
8195 if (!IS_GEN2(dev)) {
8196 if (IS_PINEVIEW(dev))
8197 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
8198 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
8200 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
8201 DPLL_FPA01_P1_POST_DIV_SHIFT);
8203 switch (dpll & DPLL_MODE_MASK) {
8204 case DPLLB_MODE_DAC_SERIAL:
8205 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
8208 case DPLLB_MODE_LVDS:
8209 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
8213 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
8214 "mode\n", (int)(dpll & DPLL_MODE_MASK));
8218 if (IS_PINEVIEW(dev))
8219 pineview_clock(refclk, &clock);
8221 i9xx_clock(refclk, &clock);
8223 u32 lvds = IS_I830(dev) ? 0 : I915_READ(LVDS);
8224 bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN);
8227 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
8228 DPLL_FPA01_P1_POST_DIV_SHIFT);
8230 if (lvds & LVDS_CLKB_POWER_UP)
8235 if (dpll & PLL_P1_DIVIDE_BY_TWO)
8238 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
8239 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
8241 if (dpll & PLL_P2_DIVIDE_BY_4)
8247 i9xx_clock(refclk, &clock);
8251 * This value includes pixel_multiplier. We will use
8252 * port_clock to compute adjusted_mode.crtc_clock in the
8253 * encoder's get_config() function.
8255 pipe_config->port_clock = clock.dot;
8258 int intel_dotclock_calculate(int link_freq,
8259 const struct intel_link_m_n *m_n)
8262 * The calculation for the data clock is:
8263 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
8264 * But we want to avoid losing precison if possible, so:
8265 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
8267 * and the link clock is simpler:
8268 * link_clock = (m * link_clock) / n
8274 return div_u64((u64)m_n->link_m * link_freq, m_n->link_n);
8277 static void ironlake_pch_clock_get(struct intel_crtc *crtc,
8278 struct intel_crtc_config *pipe_config)
8280 struct drm_device *dev = crtc->base.dev;
8282 /* read out port_clock from the DPLL */
8283 i9xx_crtc_clock_get(crtc, pipe_config);
8286 * This value does not include pixel_multiplier.
8287 * We will check that port_clock and adjusted_mode.crtc_clock
8288 * agree once we know their relationship in the encoder's
8289 * get_config() function.
8291 pipe_config->adjusted_mode.crtc_clock =
8292 intel_dotclock_calculate(intel_fdi_link_freq(dev) * 10000,
8293 &pipe_config->fdi_m_n);
8296 /** Returns the currently programmed mode of the given pipe. */
8297 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
8298 struct drm_crtc *crtc)
8300 struct drm_i915_private *dev_priv = dev->dev_private;
8301 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8302 enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
8303 struct drm_display_mode *mode;
8304 struct intel_crtc_config pipe_config;
8305 int htot = I915_READ(HTOTAL(cpu_transcoder));
8306 int hsync = I915_READ(HSYNC(cpu_transcoder));
8307 int vtot = I915_READ(VTOTAL(cpu_transcoder));
8308 int vsync = I915_READ(VSYNC(cpu_transcoder));
8309 enum pipe pipe = intel_crtc->pipe;
8311 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
8316 * Construct a pipe_config sufficient for getting the clock info
8317 * back out of crtc_clock_get.
8319 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
8320 * to use a real value here instead.
8322 pipe_config.cpu_transcoder = (enum transcoder) pipe;
8323 pipe_config.pixel_multiplier = 1;
8324 pipe_config.dpll_hw_state.dpll = I915_READ(DPLL(pipe));
8325 pipe_config.dpll_hw_state.fp0 = I915_READ(FP0(pipe));
8326 pipe_config.dpll_hw_state.fp1 = I915_READ(FP1(pipe));
8327 i9xx_crtc_clock_get(intel_crtc, &pipe_config);
8329 mode->clock = pipe_config.port_clock / pipe_config.pixel_multiplier;
8330 mode->hdisplay = (htot & 0xffff) + 1;
8331 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
8332 mode->hsync_start = (hsync & 0xffff) + 1;
8333 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
8334 mode->vdisplay = (vtot & 0xffff) + 1;
8335 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
8336 mode->vsync_start = (vsync & 0xffff) + 1;
8337 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
8339 drm_mode_set_name(mode);
8344 static void intel_increase_pllclock(struct drm_crtc *crtc)
8346 struct drm_device *dev = crtc->dev;
8347 struct drm_i915_private *dev_priv = dev->dev_private;
8348 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8349 int pipe = intel_crtc->pipe;
8350 int dpll_reg = DPLL(pipe);
8353 if (HAS_PCH_SPLIT(dev))
8356 if (!dev_priv->lvds_downclock_avail)
8359 dpll = I915_READ(dpll_reg);
8360 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
8361 DRM_DEBUG_DRIVER("upclocking LVDS\n");
8363 assert_panel_unlocked(dev_priv, pipe);
8365 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
8366 I915_WRITE(dpll_reg, dpll);
8367 intel_wait_for_vblank(dev, pipe);
8369 dpll = I915_READ(dpll_reg);
8370 if (dpll & DISPLAY_RATE_SELECT_FPA1)
8371 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
8375 static void intel_decrease_pllclock(struct drm_crtc *crtc)
8377 struct drm_device *dev = crtc->dev;
8378 struct drm_i915_private *dev_priv = dev->dev_private;
8379 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8381 if (HAS_PCH_SPLIT(dev))
8384 if (!dev_priv->lvds_downclock_avail)
8388 * Since this is called by a timer, we should never get here in
8391 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
8392 int pipe = intel_crtc->pipe;
8393 int dpll_reg = DPLL(pipe);
8396 DRM_DEBUG_DRIVER("downclocking LVDS\n");
8398 assert_panel_unlocked(dev_priv, pipe);
8400 dpll = I915_READ(dpll_reg);
8401 dpll |= DISPLAY_RATE_SELECT_FPA1;
8402 I915_WRITE(dpll_reg, dpll);
8403 intel_wait_for_vblank(dev, pipe);
8404 dpll = I915_READ(dpll_reg);
8405 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
8406 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
8411 void intel_mark_busy(struct drm_device *dev)
8413 struct drm_i915_private *dev_priv = dev->dev_private;
8415 if (dev_priv->mm.busy)
8418 intel_runtime_pm_get(dev_priv);
8419 i915_update_gfx_val(dev_priv);
8420 dev_priv->mm.busy = true;
8423 void intel_mark_idle(struct drm_device *dev)
8425 struct drm_i915_private *dev_priv = dev->dev_private;
8426 struct drm_crtc *crtc;
8428 if (!dev_priv->mm.busy)
8431 dev_priv->mm.busy = false;
8433 if (!i915.powersave)
8436 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
8437 if (!crtc->primary->fb)
8440 intel_decrease_pllclock(crtc);
8443 if (INTEL_INFO(dev)->gen >= 6)
8444 gen6_rps_idle(dev->dev_private);
8447 intel_runtime_pm_put(dev_priv);
8450 void intel_mark_fb_busy(struct drm_i915_gem_object *obj,
8451 struct intel_ring_buffer *ring)
8453 struct drm_device *dev = obj->base.dev;
8454 struct drm_crtc *crtc;
8456 if (!i915.powersave)
8459 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
8460 if (!crtc->primary->fb)
8463 if (to_intel_framebuffer(crtc->primary->fb)->obj != obj)
8466 intel_increase_pllclock(crtc);
8467 if (ring && intel_fbc_enabled(dev))
8468 ring->fbc_dirty = true;
8472 static void intel_crtc_destroy(struct drm_crtc *crtc)
8474 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8475 struct drm_device *dev = crtc->dev;
8476 struct intel_unpin_work *work;
8477 unsigned long flags;
8479 spin_lock_irqsave(&dev->event_lock, flags);
8480 work = intel_crtc->unpin_work;
8481 intel_crtc->unpin_work = NULL;
8482 spin_unlock_irqrestore(&dev->event_lock, flags);
8485 cancel_work_sync(&work->work);
8489 intel_crtc_cursor_set(crtc, NULL, 0, 0, 0);
8491 drm_crtc_cleanup(crtc);
8496 static void intel_unpin_work_fn(struct work_struct *__work)
8498 struct intel_unpin_work *work =
8499 container_of(__work, struct intel_unpin_work, work);
8500 struct drm_device *dev = work->crtc->dev;
8502 mutex_lock(&dev->struct_mutex);
8503 intel_unpin_fb_obj(work->old_fb_obj);
8504 drm_gem_object_unreference(&work->pending_flip_obj->base);
8505 drm_gem_object_unreference(&work->old_fb_obj->base);
8507 intel_update_fbc(dev);
8508 mutex_unlock(&dev->struct_mutex);
8510 BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
8511 atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
8516 static void do_intel_finish_page_flip(struct drm_device *dev,
8517 struct drm_crtc *crtc)
8519 struct drm_i915_private *dev_priv = dev->dev_private;
8520 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8521 struct intel_unpin_work *work;
8522 unsigned long flags;
8524 /* Ignore early vblank irqs */
8525 if (intel_crtc == NULL)
8528 spin_lock_irqsave(&dev->event_lock, flags);
8529 work = intel_crtc->unpin_work;
8531 /* Ensure we don't miss a work->pending update ... */
8534 if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
8535 spin_unlock_irqrestore(&dev->event_lock, flags);
8539 /* and that the unpin work is consistent wrt ->pending. */
8542 intel_crtc->unpin_work = NULL;
8545 drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
8547 drm_vblank_put(dev, intel_crtc->pipe);
8549 spin_unlock_irqrestore(&dev->event_lock, flags);
8551 wake_up_all(&dev_priv->pending_flip_queue);
8553 queue_work(dev_priv->wq, &work->work);
8555 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
8558 void intel_finish_page_flip(struct drm_device *dev, int pipe)
8560 struct drm_i915_private *dev_priv = dev->dev_private;
8561 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
8563 do_intel_finish_page_flip(dev, crtc);
8566 void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
8568 struct drm_i915_private *dev_priv = dev->dev_private;
8569 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
8571 do_intel_finish_page_flip(dev, crtc);
8574 void intel_prepare_page_flip(struct drm_device *dev, int plane)
8576 struct drm_i915_private *dev_priv = dev->dev_private;
8577 struct intel_crtc *intel_crtc =
8578 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
8579 unsigned long flags;
8581 /* NB: An MMIO update of the plane base pointer will also
8582 * generate a page-flip completion irq, i.e. every modeset
8583 * is also accompanied by a spurious intel_prepare_page_flip().
8585 spin_lock_irqsave(&dev->event_lock, flags);
8586 if (intel_crtc->unpin_work)
8587 atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
8588 spin_unlock_irqrestore(&dev->event_lock, flags);
8591 inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
8593 /* Ensure that the work item is consistent when activating it ... */
8595 atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
8596 /* and that it is marked active as soon as the irq could fire. */
8600 static int intel_gen2_queue_flip(struct drm_device *dev,
8601 struct drm_crtc *crtc,
8602 struct drm_framebuffer *fb,
8603 struct drm_i915_gem_object *obj,
8606 struct drm_i915_private *dev_priv = dev->dev_private;
8607 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8609 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8612 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8616 ret = intel_ring_begin(ring, 6);
8620 /* Can't queue multiple flips, so wait for the previous
8621 * one to finish before executing the next.
8623 if (intel_crtc->plane)
8624 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
8626 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
8627 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
8628 intel_ring_emit(ring, MI_NOOP);
8629 intel_ring_emit(ring, MI_DISPLAY_FLIP |
8630 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8631 intel_ring_emit(ring, fb->pitches[0]);
8632 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8633 intel_ring_emit(ring, 0); /* aux display base address, unused */
8635 intel_mark_page_flip_active(intel_crtc);
8636 __intel_ring_advance(ring);
8640 intel_unpin_fb_obj(obj);
8645 static int intel_gen3_queue_flip(struct drm_device *dev,
8646 struct drm_crtc *crtc,
8647 struct drm_framebuffer *fb,
8648 struct drm_i915_gem_object *obj,
8651 struct drm_i915_private *dev_priv = dev->dev_private;
8652 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8654 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8657 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8661 ret = intel_ring_begin(ring, 6);
8665 if (intel_crtc->plane)
8666 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
8668 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
8669 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
8670 intel_ring_emit(ring, MI_NOOP);
8671 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
8672 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8673 intel_ring_emit(ring, fb->pitches[0]);
8674 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8675 intel_ring_emit(ring, MI_NOOP);
8677 intel_mark_page_flip_active(intel_crtc);
8678 __intel_ring_advance(ring);
8682 intel_unpin_fb_obj(obj);
8687 static int intel_gen4_queue_flip(struct drm_device *dev,
8688 struct drm_crtc *crtc,
8689 struct drm_framebuffer *fb,
8690 struct drm_i915_gem_object *obj,
8693 struct drm_i915_private *dev_priv = dev->dev_private;
8694 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8695 uint32_t pf, pipesrc;
8696 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8699 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8703 ret = intel_ring_begin(ring, 4);
8707 /* i965+ uses the linear or tiled offsets from the
8708 * Display Registers (which do not change across a page-flip)
8709 * so we need only reprogram the base address.
8711 intel_ring_emit(ring, MI_DISPLAY_FLIP |
8712 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8713 intel_ring_emit(ring, fb->pitches[0]);
8714 intel_ring_emit(ring,
8715 (i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset) |
8718 /* XXX Enabling the panel-fitter across page-flip is so far
8719 * untested on non-native modes, so ignore it for now.
8720 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
8723 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
8724 intel_ring_emit(ring, pf | pipesrc);
8726 intel_mark_page_flip_active(intel_crtc);
8727 __intel_ring_advance(ring);
8731 intel_unpin_fb_obj(obj);
8736 static int intel_gen6_queue_flip(struct drm_device *dev,
8737 struct drm_crtc *crtc,
8738 struct drm_framebuffer *fb,
8739 struct drm_i915_gem_object *obj,
8742 struct drm_i915_private *dev_priv = dev->dev_private;
8743 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8744 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
8745 uint32_t pf, pipesrc;
8748 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8752 ret = intel_ring_begin(ring, 4);
8756 intel_ring_emit(ring, MI_DISPLAY_FLIP |
8757 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
8758 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
8759 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8761 /* Contrary to the suggestions in the documentation,
8762 * "Enable Panel Fitter" does not seem to be required when page
8763 * flipping with a non-native mode, and worse causes a normal
8765 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
8768 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
8769 intel_ring_emit(ring, pf | pipesrc);
8771 intel_mark_page_flip_active(intel_crtc);
8772 __intel_ring_advance(ring);
8776 intel_unpin_fb_obj(obj);
8781 static int intel_gen7_queue_flip(struct drm_device *dev,
8782 struct drm_crtc *crtc,
8783 struct drm_framebuffer *fb,
8784 struct drm_i915_gem_object *obj,
8787 struct drm_i915_private *dev_priv = dev->dev_private;
8788 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8789 struct intel_ring_buffer *ring;
8790 uint32_t plane_bit = 0;
8794 if (IS_VALLEYVIEW(dev) || ring == NULL || ring->id != RCS)
8795 ring = &dev_priv->ring[BCS];
8797 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
8801 switch(intel_crtc->plane) {
8803 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
8806 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
8809 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
8812 WARN_ONCE(1, "unknown plane in flip command\n");
8818 if (ring->id == RCS) {
8821 * On Gen 8, SRM is now taking an extra dword to accommodate
8822 * 48bits addresses, and we need a NOOP for the batch size to
8830 * BSpec MI_DISPLAY_FLIP for IVB:
8831 * "The full packet must be contained within the same cache line."
8833 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
8834 * cacheline, if we ever start emitting more commands before
8835 * the MI_DISPLAY_FLIP we may need to first emit everything else,
8836 * then do the cacheline alignment, and finally emit the
8839 ret = intel_ring_cacheline_align(ring);
8843 ret = intel_ring_begin(ring, len);
8847 /* Unmask the flip-done completion message. Note that the bspec says that
8848 * we should do this for both the BCS and RCS, and that we must not unmask
8849 * more than one flip event at any time (or ensure that one flip message
8850 * can be sent by waiting for flip-done prior to queueing new flips).
8851 * Experimentation says that BCS works despite DERRMR masking all
8852 * flip-done completion events and that unmasking all planes at once
8853 * for the RCS also doesn't appear to drop events. Setting the DERRMR
8854 * to zero does lead to lockups within MI_DISPLAY_FLIP.
8856 if (ring->id == RCS) {
8857 intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
8858 intel_ring_emit(ring, DERRMR);
8859 intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE |
8860 DERRMR_PIPEB_PRI_FLIP_DONE |
8861 DERRMR_PIPEC_PRI_FLIP_DONE));
8863 intel_ring_emit(ring, MI_STORE_REGISTER_MEM_GEN8(1) |
8864 MI_SRM_LRM_GLOBAL_GTT);
8866 intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1) |
8867 MI_SRM_LRM_GLOBAL_GTT);
8868 intel_ring_emit(ring, DERRMR);
8869 intel_ring_emit(ring, ring->scratch.gtt_offset + 256);
8871 intel_ring_emit(ring, 0);
8872 intel_ring_emit(ring, MI_NOOP);
8876 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
8877 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
8878 intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
8879 intel_ring_emit(ring, (MI_NOOP));
8881 intel_mark_page_flip_active(intel_crtc);
8882 __intel_ring_advance(ring);
8886 intel_unpin_fb_obj(obj);
8891 static int intel_default_queue_flip(struct drm_device *dev,
8892 struct drm_crtc *crtc,
8893 struct drm_framebuffer *fb,
8894 struct drm_i915_gem_object *obj,
8900 static int intel_crtc_page_flip(struct drm_crtc *crtc,
8901 struct drm_framebuffer *fb,
8902 struct drm_pending_vblank_event *event,
8903 uint32_t page_flip_flags)
8905 struct drm_device *dev = crtc->dev;
8906 struct drm_i915_private *dev_priv = dev->dev_private;
8907 struct drm_framebuffer *old_fb = crtc->primary->fb;
8908 struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
8909 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8910 struct intel_unpin_work *work;
8911 unsigned long flags;
8914 /* Can't change pixel format via MI display flips. */
8915 if (fb->pixel_format != crtc->primary->fb->pixel_format)
8919 * TILEOFF/LINOFF registers can't be changed via MI display flips.
8920 * Note that pitch changes could also affect these register.
8922 if (INTEL_INFO(dev)->gen > 3 &&
8923 (fb->offsets[0] != crtc->primary->fb->offsets[0] ||
8924 fb->pitches[0] != crtc->primary->fb->pitches[0]))
8927 if (i915_terminally_wedged(&dev_priv->gpu_error))
8930 work = kzalloc(sizeof(*work), GFP_KERNEL);
8934 work->event = event;
8936 work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
8937 INIT_WORK(&work->work, intel_unpin_work_fn);
8939 ret = drm_vblank_get(dev, intel_crtc->pipe);
8943 /* We borrow the event spin lock for protecting unpin_work */
8944 spin_lock_irqsave(&dev->event_lock, flags);
8945 if (intel_crtc->unpin_work) {
8946 spin_unlock_irqrestore(&dev->event_lock, flags);
8948 drm_vblank_put(dev, intel_crtc->pipe);
8950 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
8953 intel_crtc->unpin_work = work;
8954 spin_unlock_irqrestore(&dev->event_lock, flags);
8956 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
8957 flush_workqueue(dev_priv->wq);
8959 ret = i915_mutex_lock_interruptible(dev);
8963 /* Reference the objects for the scheduled work. */
8964 drm_gem_object_reference(&work->old_fb_obj->base);
8965 drm_gem_object_reference(&obj->base);
8967 crtc->primary->fb = fb;
8969 work->pending_flip_obj = obj;
8971 work->enable_stall_check = true;
8973 atomic_inc(&intel_crtc->unpin_work_count);
8974 intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
8976 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, page_flip_flags);
8978 goto cleanup_pending;
8980 intel_disable_fbc(dev);
8981 intel_mark_fb_busy(obj, NULL);
8982 mutex_unlock(&dev->struct_mutex);
8984 trace_i915_flip_request(intel_crtc->plane, obj);
8989 atomic_dec(&intel_crtc->unpin_work_count);
8990 crtc->primary->fb = old_fb;
8991 drm_gem_object_unreference(&work->old_fb_obj->base);
8992 drm_gem_object_unreference(&obj->base);
8993 mutex_unlock(&dev->struct_mutex);
8996 spin_lock_irqsave(&dev->event_lock, flags);
8997 intel_crtc->unpin_work = NULL;
8998 spin_unlock_irqrestore(&dev->event_lock, flags);
9000 drm_vblank_put(dev, intel_crtc->pipe);
9006 intel_crtc_wait_for_pending_flips(crtc);
9007 ret = intel_pipe_set_base(crtc, crtc->x, crtc->y, fb);
9008 if (ret == 0 && event)
9009 drm_send_vblank_event(dev, intel_crtc->pipe, event);
9014 static struct drm_crtc_helper_funcs intel_helper_funcs = {
9015 .mode_set_base_atomic = intel_pipe_set_base_atomic,
9016 .load_lut = intel_crtc_load_lut,
9020 * intel_modeset_update_staged_output_state
9022 * Updates the staged output configuration state, e.g. after we've read out the
9025 static void intel_modeset_update_staged_output_state(struct drm_device *dev)
9027 struct intel_crtc *crtc;
9028 struct intel_encoder *encoder;
9029 struct intel_connector *connector;
9031 list_for_each_entry(connector, &dev->mode_config.connector_list,
9033 connector->new_encoder =
9034 to_intel_encoder(connector->base.encoder);
9037 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9040 to_intel_crtc(encoder->base.crtc);
9043 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9045 crtc->new_enabled = crtc->base.enabled;
9047 if (crtc->new_enabled)
9048 crtc->new_config = &crtc->config;
9050 crtc->new_config = NULL;
9055 * intel_modeset_commit_output_state
9057 * This function copies the stage display pipe configuration to the real one.
9059 static void intel_modeset_commit_output_state(struct drm_device *dev)
9061 struct intel_crtc *crtc;
9062 struct intel_encoder *encoder;
9063 struct intel_connector *connector;
9065 list_for_each_entry(connector, &dev->mode_config.connector_list,
9067 connector->base.encoder = &connector->new_encoder->base;
9070 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9072 encoder->base.crtc = &encoder->new_crtc->base;
9075 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9077 crtc->base.enabled = crtc->new_enabled;
9082 connected_sink_compute_bpp(struct intel_connector * connector,
9083 struct intel_crtc_config *pipe_config)
9085 int bpp = pipe_config->pipe_bpp;
9087 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
9088 connector->base.base.id,
9089 drm_get_connector_name(&connector->base));
9091 /* Don't use an invalid EDID bpc value */
9092 if (connector->base.display_info.bpc &&
9093 connector->base.display_info.bpc * 3 < bpp) {
9094 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
9095 bpp, connector->base.display_info.bpc*3);
9096 pipe_config->pipe_bpp = connector->base.display_info.bpc*3;
9099 /* Clamp bpp to 8 on screens without EDID 1.4 */
9100 if (connector->base.display_info.bpc == 0 && bpp > 24) {
9101 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
9103 pipe_config->pipe_bpp = 24;
9108 compute_baseline_pipe_bpp(struct intel_crtc *crtc,
9109 struct drm_framebuffer *fb,
9110 struct intel_crtc_config *pipe_config)
9112 struct drm_device *dev = crtc->base.dev;
9113 struct intel_connector *connector;
9116 switch (fb->pixel_format) {
9118 bpp = 8*3; /* since we go through a colormap */
9120 case DRM_FORMAT_XRGB1555:
9121 case DRM_FORMAT_ARGB1555:
9122 /* checked in intel_framebuffer_init already */
9123 if (WARN_ON(INTEL_INFO(dev)->gen > 3))
9125 case DRM_FORMAT_RGB565:
9126 bpp = 6*3; /* min is 18bpp */
9128 case DRM_FORMAT_XBGR8888:
9129 case DRM_FORMAT_ABGR8888:
9130 /* checked in intel_framebuffer_init already */
9131 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
9133 case DRM_FORMAT_XRGB8888:
9134 case DRM_FORMAT_ARGB8888:
9137 case DRM_FORMAT_XRGB2101010:
9138 case DRM_FORMAT_ARGB2101010:
9139 case DRM_FORMAT_XBGR2101010:
9140 case DRM_FORMAT_ABGR2101010:
9141 /* checked in intel_framebuffer_init already */
9142 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
9146 /* TODO: gen4+ supports 16 bpc floating point, too. */
9148 DRM_DEBUG_KMS("unsupported depth\n");
9152 pipe_config->pipe_bpp = bpp;
9154 /* Clamp display bpp to EDID value */
9155 list_for_each_entry(connector, &dev->mode_config.connector_list,
9157 if (!connector->new_encoder ||
9158 connector->new_encoder->new_crtc != crtc)
9161 connected_sink_compute_bpp(connector, pipe_config);
9167 static void intel_dump_crtc_timings(const struct drm_display_mode *mode)
9169 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
9170 "type: 0x%x flags: 0x%x\n",
9172 mode->crtc_hdisplay, mode->crtc_hsync_start,
9173 mode->crtc_hsync_end, mode->crtc_htotal,
9174 mode->crtc_vdisplay, mode->crtc_vsync_start,
9175 mode->crtc_vsync_end, mode->crtc_vtotal, mode->type, mode->flags);
9178 static void intel_dump_pipe_config(struct intel_crtc *crtc,
9179 struct intel_crtc_config *pipe_config,
9180 const char *context)
9182 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id,
9183 context, pipe_name(crtc->pipe));
9185 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder));
9186 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
9187 pipe_config->pipe_bpp, pipe_config->dither);
9188 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
9189 pipe_config->has_pch_encoder,
9190 pipe_config->fdi_lanes,
9191 pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n,
9192 pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n,
9193 pipe_config->fdi_m_n.tu);
9194 DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
9195 pipe_config->has_dp_encoder,
9196 pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n,
9197 pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n,
9198 pipe_config->dp_m_n.tu);
9199 DRM_DEBUG_KMS("requested mode:\n");
9200 drm_mode_debug_printmodeline(&pipe_config->requested_mode);
9201 DRM_DEBUG_KMS("adjusted mode:\n");
9202 drm_mode_debug_printmodeline(&pipe_config->adjusted_mode);
9203 intel_dump_crtc_timings(&pipe_config->adjusted_mode);
9204 DRM_DEBUG_KMS("port clock: %d\n", pipe_config->port_clock);
9205 DRM_DEBUG_KMS("pipe src size: %dx%d\n",
9206 pipe_config->pipe_src_w, pipe_config->pipe_src_h);
9207 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
9208 pipe_config->gmch_pfit.control,
9209 pipe_config->gmch_pfit.pgm_ratios,
9210 pipe_config->gmch_pfit.lvds_border_bits);
9211 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
9212 pipe_config->pch_pfit.pos,
9213 pipe_config->pch_pfit.size,
9214 pipe_config->pch_pfit.enabled ? "enabled" : "disabled");
9215 DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled);
9216 DRM_DEBUG_KMS("double wide: %i\n", pipe_config->double_wide);
9219 static bool encoders_cloneable(const struct intel_encoder *a,
9220 const struct intel_encoder *b)
9222 /* masks could be asymmetric, so check both ways */
9223 return a == b || (a->cloneable & (1 << b->type) &&
9224 b->cloneable & (1 << a->type));
9227 static bool check_single_encoder_cloning(struct intel_crtc *crtc,
9228 struct intel_encoder *encoder)
9230 struct drm_device *dev = crtc->base.dev;
9231 struct intel_encoder *source_encoder;
9233 list_for_each_entry(source_encoder,
9234 &dev->mode_config.encoder_list, base.head) {
9235 if (source_encoder->new_crtc != crtc)
9238 if (!encoders_cloneable(encoder, source_encoder))
9245 static bool check_encoder_cloning(struct intel_crtc *crtc)
9247 struct drm_device *dev = crtc->base.dev;
9248 struct intel_encoder *encoder;
9250 list_for_each_entry(encoder,
9251 &dev->mode_config.encoder_list, base.head) {
9252 if (encoder->new_crtc != crtc)
9255 if (!check_single_encoder_cloning(crtc, encoder))
9262 static struct intel_crtc_config *
9263 intel_modeset_pipe_config(struct drm_crtc *crtc,
9264 struct drm_framebuffer *fb,
9265 struct drm_display_mode *mode)
9267 struct drm_device *dev = crtc->dev;
9268 struct intel_encoder *encoder;
9269 struct intel_crtc_config *pipe_config;
9270 int plane_bpp, ret = -EINVAL;
9273 if (!check_encoder_cloning(to_intel_crtc(crtc))) {
9274 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
9275 return ERR_PTR(-EINVAL);
9278 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
9280 return ERR_PTR(-ENOMEM);
9282 drm_mode_copy(&pipe_config->adjusted_mode, mode);
9283 drm_mode_copy(&pipe_config->requested_mode, mode);
9285 pipe_config->cpu_transcoder =
9286 (enum transcoder) to_intel_crtc(crtc)->pipe;
9287 pipe_config->shared_dpll = DPLL_ID_PRIVATE;
9290 * Sanitize sync polarity flags based on requested ones. If neither
9291 * positive or negative polarity is requested, treat this as meaning
9292 * negative polarity.
9294 if (!(pipe_config->adjusted_mode.flags &
9295 (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC)))
9296 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC;
9298 if (!(pipe_config->adjusted_mode.flags &
9299 (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC)))
9300 pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC;
9302 /* Compute a starting value for pipe_config->pipe_bpp taking the source
9303 * plane pixel format and any sink constraints into account. Returns the
9304 * source plane bpp so that dithering can be selected on mismatches
9305 * after encoders and crtc also have had their say. */
9306 plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc),
9312 * Determine the real pipe dimensions. Note that stereo modes can
9313 * increase the actual pipe size due to the frame doubling and
9314 * insertion of additional space for blanks between the frame. This
9315 * is stored in the crtc timings. We use the requested mode to do this
9316 * computation to clearly distinguish it from the adjusted mode, which
9317 * can be changed by the connectors in the below retry loop.
9319 drm_mode_set_crtcinfo(&pipe_config->requested_mode, CRTC_STEREO_DOUBLE);
9320 pipe_config->pipe_src_w = pipe_config->requested_mode.crtc_hdisplay;
9321 pipe_config->pipe_src_h = pipe_config->requested_mode.crtc_vdisplay;
9324 /* Ensure the port clock defaults are reset when retrying. */
9325 pipe_config->port_clock = 0;
9326 pipe_config->pixel_multiplier = 1;
9328 /* Fill in default crtc timings, allow encoders to overwrite them. */
9329 drm_mode_set_crtcinfo(&pipe_config->adjusted_mode, CRTC_STEREO_DOUBLE);
9331 /* Pass our mode to the connectors and the CRTC to give them a chance to
9332 * adjust it according to limitations or connector properties, and also
9333 * a chance to reject the mode entirely.
9335 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9338 if (&encoder->new_crtc->base != crtc)
9341 if (!(encoder->compute_config(encoder, pipe_config))) {
9342 DRM_DEBUG_KMS("Encoder config failure\n");
9347 /* Set default port clock if not overwritten by the encoder. Needs to be
9348 * done afterwards in case the encoder adjusts the mode. */
9349 if (!pipe_config->port_clock)
9350 pipe_config->port_clock = pipe_config->adjusted_mode.crtc_clock
9351 * pipe_config->pixel_multiplier;
9353 ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config);
9355 DRM_DEBUG_KMS("CRTC fixup failed\n");
9360 if (WARN(!retry, "loop in pipe configuration computation\n")) {
9365 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
9370 pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
9371 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
9372 plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
9377 return ERR_PTR(ret);
9380 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
9381 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
9383 intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
9384 unsigned *prepare_pipes, unsigned *disable_pipes)
9386 struct intel_crtc *intel_crtc;
9387 struct drm_device *dev = crtc->dev;
9388 struct intel_encoder *encoder;
9389 struct intel_connector *connector;
9390 struct drm_crtc *tmp_crtc;
9392 *disable_pipes = *modeset_pipes = *prepare_pipes = 0;
9394 /* Check which crtcs have changed outputs connected to them, these need
9395 * to be part of the prepare_pipes mask. We don't (yet) support global
9396 * modeset across multiple crtcs, so modeset_pipes will only have one
9397 * bit set at most. */
9398 list_for_each_entry(connector, &dev->mode_config.connector_list,
9400 if (connector->base.encoder == &connector->new_encoder->base)
9403 if (connector->base.encoder) {
9404 tmp_crtc = connector->base.encoder->crtc;
9406 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
9409 if (connector->new_encoder)
9411 1 << connector->new_encoder->new_crtc->pipe;
9414 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9416 if (encoder->base.crtc == &encoder->new_crtc->base)
9419 if (encoder->base.crtc) {
9420 tmp_crtc = encoder->base.crtc;
9422 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
9425 if (encoder->new_crtc)
9426 *prepare_pipes |= 1 << encoder->new_crtc->pipe;
9429 /* Check for pipes that will be enabled/disabled ... */
9430 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
9432 if (intel_crtc->base.enabled == intel_crtc->new_enabled)
9435 if (!intel_crtc->new_enabled)
9436 *disable_pipes |= 1 << intel_crtc->pipe;
9438 *prepare_pipes |= 1 << intel_crtc->pipe;
9442 /* set_mode is also used to update properties on life display pipes. */
9443 intel_crtc = to_intel_crtc(crtc);
9444 if (intel_crtc->new_enabled)
9445 *prepare_pipes |= 1 << intel_crtc->pipe;
9448 * For simplicity do a full modeset on any pipe where the output routing
9449 * changed. We could be more clever, but that would require us to be
9450 * more careful with calling the relevant encoder->mode_set functions.
9453 *modeset_pipes = *prepare_pipes;
9455 /* ... and mask these out. */
9456 *modeset_pipes &= ~(*disable_pipes);
9457 *prepare_pipes &= ~(*disable_pipes);
9460 * HACK: We don't (yet) fully support global modesets. intel_set_config
9461 * obies this rule, but the modeset restore mode of
9462 * intel_modeset_setup_hw_state does not.
9464 *modeset_pipes &= 1 << intel_crtc->pipe;
9465 *prepare_pipes &= 1 << intel_crtc->pipe;
9467 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
9468 *modeset_pipes, *prepare_pipes, *disable_pipes);
9471 static bool intel_crtc_in_use(struct drm_crtc *crtc)
9473 struct drm_encoder *encoder;
9474 struct drm_device *dev = crtc->dev;
9476 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
9477 if (encoder->crtc == crtc)
9484 intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
9486 struct intel_encoder *intel_encoder;
9487 struct intel_crtc *intel_crtc;
9488 struct drm_connector *connector;
9490 list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
9492 if (!intel_encoder->base.crtc)
9495 intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
9497 if (prepare_pipes & (1 << intel_crtc->pipe))
9498 intel_encoder->connectors_active = false;
9501 intel_modeset_commit_output_state(dev);
9503 /* Double check state. */
9504 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
9506 WARN_ON(intel_crtc->base.enabled != intel_crtc_in_use(&intel_crtc->base));
9507 WARN_ON(intel_crtc->new_config &&
9508 intel_crtc->new_config != &intel_crtc->config);
9509 WARN_ON(intel_crtc->base.enabled != !!intel_crtc->new_config);
9512 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
9513 if (!connector->encoder || !connector->encoder->crtc)
9516 intel_crtc = to_intel_crtc(connector->encoder->crtc);
9518 if (prepare_pipes & (1 << intel_crtc->pipe)) {
9519 struct drm_property *dpms_property =
9520 dev->mode_config.dpms_property;
9522 connector->dpms = DRM_MODE_DPMS_ON;
9523 drm_object_property_set_value(&connector->base,
9527 intel_encoder = to_intel_encoder(connector->encoder);
9528 intel_encoder->connectors_active = true;
9534 static bool intel_fuzzy_clock_check(int clock1, int clock2)
9538 if (clock1 == clock2)
9541 if (!clock1 || !clock2)
9544 diff = abs(clock1 - clock2);
9546 if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105)
9552 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
9553 list_for_each_entry((intel_crtc), \
9554 &(dev)->mode_config.crtc_list, \
9556 if (mask & (1 <<(intel_crtc)->pipe))
9559 intel_pipe_config_compare(struct drm_device *dev,
9560 struct intel_crtc_config *current_config,
9561 struct intel_crtc_config *pipe_config)
9563 #define PIPE_CONF_CHECK_X(name) \
9564 if (current_config->name != pipe_config->name) { \
9565 DRM_ERROR("mismatch in " #name " " \
9566 "(expected 0x%08x, found 0x%08x)\n", \
9567 current_config->name, \
9568 pipe_config->name); \
9572 #define PIPE_CONF_CHECK_I(name) \
9573 if (current_config->name != pipe_config->name) { \
9574 DRM_ERROR("mismatch in " #name " " \
9575 "(expected %i, found %i)\n", \
9576 current_config->name, \
9577 pipe_config->name); \
9581 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
9582 if ((current_config->name ^ pipe_config->name) & (mask)) { \
9583 DRM_ERROR("mismatch in " #name "(" #mask ") " \
9584 "(expected %i, found %i)\n", \
9585 current_config->name & (mask), \
9586 pipe_config->name & (mask)); \
9590 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
9591 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
9592 DRM_ERROR("mismatch in " #name " " \
9593 "(expected %i, found %i)\n", \
9594 current_config->name, \
9595 pipe_config->name); \
9599 #define PIPE_CONF_QUIRK(quirk) \
9600 ((current_config->quirks | pipe_config->quirks) & (quirk))
9602 PIPE_CONF_CHECK_I(cpu_transcoder);
9604 PIPE_CONF_CHECK_I(has_pch_encoder);
9605 PIPE_CONF_CHECK_I(fdi_lanes);
9606 PIPE_CONF_CHECK_I(fdi_m_n.gmch_m);
9607 PIPE_CONF_CHECK_I(fdi_m_n.gmch_n);
9608 PIPE_CONF_CHECK_I(fdi_m_n.link_m);
9609 PIPE_CONF_CHECK_I(fdi_m_n.link_n);
9610 PIPE_CONF_CHECK_I(fdi_m_n.tu);
9612 PIPE_CONF_CHECK_I(has_dp_encoder);
9613 PIPE_CONF_CHECK_I(dp_m_n.gmch_m);
9614 PIPE_CONF_CHECK_I(dp_m_n.gmch_n);
9615 PIPE_CONF_CHECK_I(dp_m_n.link_m);
9616 PIPE_CONF_CHECK_I(dp_m_n.link_n);
9617 PIPE_CONF_CHECK_I(dp_m_n.tu);
9619 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay);
9620 PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal);
9621 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start);
9622 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end);
9623 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start);
9624 PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end);
9626 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay);
9627 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal);
9628 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start);
9629 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end);
9630 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start);
9631 PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end);
9633 PIPE_CONF_CHECK_I(pixel_multiplier);
9635 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9636 DRM_MODE_FLAG_INTERLACE);
9638 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) {
9639 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9640 DRM_MODE_FLAG_PHSYNC);
9641 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9642 DRM_MODE_FLAG_NHSYNC);
9643 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9644 DRM_MODE_FLAG_PVSYNC);
9645 PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
9646 DRM_MODE_FLAG_NVSYNC);
9649 PIPE_CONF_CHECK_I(pipe_src_w);
9650 PIPE_CONF_CHECK_I(pipe_src_h);
9652 PIPE_CONF_CHECK_I(gmch_pfit.control);
9653 /* pfit ratios are autocomputed by the hw on gen4+ */
9654 if (INTEL_INFO(dev)->gen < 4)
9655 PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios);
9656 PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits);
9657 PIPE_CONF_CHECK_I(pch_pfit.enabled);
9658 if (current_config->pch_pfit.enabled) {
9659 PIPE_CONF_CHECK_I(pch_pfit.pos);
9660 PIPE_CONF_CHECK_I(pch_pfit.size);
9663 /* BDW+ don't expose a synchronous way to read the state */
9664 if (IS_HASWELL(dev))
9665 PIPE_CONF_CHECK_I(ips_enabled);
9667 PIPE_CONF_CHECK_I(double_wide);
9669 PIPE_CONF_CHECK_I(shared_dpll);
9670 PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
9671 PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
9672 PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
9673 PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
9675 if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5)
9676 PIPE_CONF_CHECK_I(pipe_bpp);
9678 PIPE_CONF_CHECK_CLOCK_FUZZY(adjusted_mode.crtc_clock);
9679 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock);
9681 #undef PIPE_CONF_CHECK_X
9682 #undef PIPE_CONF_CHECK_I
9683 #undef PIPE_CONF_CHECK_FLAGS
9684 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
9685 #undef PIPE_CONF_QUIRK
9691 check_connector_state(struct drm_device *dev)
9693 struct intel_connector *connector;
9695 list_for_each_entry(connector, &dev->mode_config.connector_list,
9697 /* This also checks the encoder/connector hw state with the
9698 * ->get_hw_state callbacks. */
9699 intel_connector_check_state(connector);
9701 WARN(&connector->new_encoder->base != connector->base.encoder,
9702 "connector's staged encoder doesn't match current encoder\n");
9707 check_encoder_state(struct drm_device *dev)
9709 struct intel_encoder *encoder;
9710 struct intel_connector *connector;
9712 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9714 bool enabled = false;
9715 bool active = false;
9716 enum pipe pipe, tracked_pipe;
9718 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
9719 encoder->base.base.id,
9720 drm_get_encoder_name(&encoder->base));
9722 WARN(&encoder->new_crtc->base != encoder->base.crtc,
9723 "encoder's stage crtc doesn't match current crtc\n");
9724 WARN(encoder->connectors_active && !encoder->base.crtc,
9725 "encoder's active_connectors set, but no crtc\n");
9727 list_for_each_entry(connector, &dev->mode_config.connector_list,
9729 if (connector->base.encoder != &encoder->base)
9732 if (connector->base.dpms != DRM_MODE_DPMS_OFF)
9735 WARN(!!encoder->base.crtc != enabled,
9736 "encoder's enabled state mismatch "
9737 "(expected %i, found %i)\n",
9738 !!encoder->base.crtc, enabled);
9739 WARN(active && !encoder->base.crtc,
9740 "active encoder with no crtc\n");
9742 WARN(encoder->connectors_active != active,
9743 "encoder's computed active state doesn't match tracked active state "
9744 "(expected %i, found %i)\n", active, encoder->connectors_active);
9746 active = encoder->get_hw_state(encoder, &pipe);
9747 WARN(active != encoder->connectors_active,
9748 "encoder's hw state doesn't match sw tracking "
9749 "(expected %i, found %i)\n",
9750 encoder->connectors_active, active);
9752 if (!encoder->base.crtc)
9755 tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
9756 WARN(active && pipe != tracked_pipe,
9757 "active encoder's pipe doesn't match"
9758 "(expected %i, found %i)\n",
9759 tracked_pipe, pipe);
9765 check_crtc_state(struct drm_device *dev)
9767 struct drm_i915_private *dev_priv = dev->dev_private;
9768 struct intel_crtc *crtc;
9769 struct intel_encoder *encoder;
9770 struct intel_crtc_config pipe_config;
9772 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9774 bool enabled = false;
9775 bool active = false;
9777 memset(&pipe_config, 0, sizeof(pipe_config));
9779 DRM_DEBUG_KMS("[CRTC:%d]\n",
9780 crtc->base.base.id);
9782 WARN(crtc->active && !crtc->base.enabled,
9783 "active crtc, but not enabled in sw tracking\n");
9785 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9787 if (encoder->base.crtc != &crtc->base)
9790 if (encoder->connectors_active)
9794 WARN(active != crtc->active,
9795 "crtc's computed active state doesn't match tracked active state "
9796 "(expected %i, found %i)\n", active, crtc->active);
9797 WARN(enabled != crtc->base.enabled,
9798 "crtc's computed enabled state doesn't match tracked enabled state "
9799 "(expected %i, found %i)\n", enabled, crtc->base.enabled);
9801 active = dev_priv->display.get_pipe_config(crtc,
9804 /* hw state is inconsistent with the pipe A quirk */
9805 if (crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
9806 active = crtc->active;
9808 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9811 if (encoder->base.crtc != &crtc->base)
9813 if (encoder->get_hw_state(encoder, &pipe))
9814 encoder->get_config(encoder, &pipe_config);
9817 WARN(crtc->active != active,
9818 "crtc active state doesn't match with hw state "
9819 "(expected %i, found %i)\n", crtc->active, active);
9822 !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) {
9823 WARN(1, "pipe state doesn't match!\n");
9824 intel_dump_pipe_config(crtc, &pipe_config,
9826 intel_dump_pipe_config(crtc, &crtc->config,
9833 check_shared_dpll_state(struct drm_device *dev)
9835 struct drm_i915_private *dev_priv = dev->dev_private;
9836 struct intel_crtc *crtc;
9837 struct intel_dpll_hw_state dpll_hw_state;
9840 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
9841 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
9842 int enabled_crtcs = 0, active_crtcs = 0;
9845 memset(&dpll_hw_state, 0, sizeof(dpll_hw_state));
9847 DRM_DEBUG_KMS("%s\n", pll->name);
9849 active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state);
9851 WARN(pll->active > pll->refcount,
9852 "more active pll users than references: %i vs %i\n",
9853 pll->active, pll->refcount);
9854 WARN(pll->active && !pll->on,
9855 "pll in active use but not on in sw tracking\n");
9856 WARN(pll->on && !pll->active,
9857 "pll in on but not on in use in sw tracking\n");
9858 WARN(pll->on != active,
9859 "pll on state mismatch (expected %i, found %i)\n",
9862 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9864 if (crtc->base.enabled && intel_crtc_to_shared_dpll(crtc) == pll)
9866 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
9869 WARN(pll->active != active_crtcs,
9870 "pll active crtcs mismatch (expected %i, found %i)\n",
9871 pll->active, active_crtcs);
9872 WARN(pll->refcount != enabled_crtcs,
9873 "pll enabled crtcs mismatch (expected %i, found %i)\n",
9874 pll->refcount, enabled_crtcs);
9876 WARN(pll->on && memcmp(&pll->hw_state, &dpll_hw_state,
9877 sizeof(dpll_hw_state)),
9878 "pll hw state mismatch\n");
9883 intel_modeset_check_state(struct drm_device *dev)
9885 check_connector_state(dev);
9886 check_encoder_state(dev);
9887 check_crtc_state(dev);
9888 check_shared_dpll_state(dev);
9891 void ironlake_check_encoder_dotclock(const struct intel_crtc_config *pipe_config,
9895 * FDI already provided one idea for the dotclock.
9896 * Yell if the encoder disagrees.
9898 WARN(!intel_fuzzy_clock_check(pipe_config->adjusted_mode.crtc_clock, dotclock),
9899 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
9900 pipe_config->adjusted_mode.crtc_clock, dotclock);
9903 static int __intel_set_mode(struct drm_crtc *crtc,
9904 struct drm_display_mode *mode,
9905 int x, int y, struct drm_framebuffer *fb)
9907 struct drm_device *dev = crtc->dev;
9908 struct drm_i915_private *dev_priv = dev->dev_private;
9909 struct drm_display_mode *saved_mode;
9910 struct intel_crtc_config *pipe_config = NULL;
9911 struct intel_crtc *intel_crtc;
9912 unsigned disable_pipes, prepare_pipes, modeset_pipes;
9915 saved_mode = kmalloc(sizeof(*saved_mode), GFP_KERNEL);
9919 intel_modeset_affected_pipes(crtc, &modeset_pipes,
9920 &prepare_pipes, &disable_pipes);
9922 *saved_mode = crtc->mode;
9924 /* Hack: Because we don't (yet) support global modeset on multiple
9925 * crtcs, we don't keep track of the new mode for more than one crtc.
9926 * Hence simply check whether any bit is set in modeset_pipes in all the
9927 * pieces of code that are not yet converted to deal with mutliple crtcs
9928 * changing their mode at the same time. */
9929 if (modeset_pipes) {
9930 pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
9931 if (IS_ERR(pipe_config)) {
9932 ret = PTR_ERR(pipe_config);
9937 intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config,
9939 to_intel_crtc(crtc)->new_config = pipe_config;
9943 * See if the config requires any additional preparation, e.g.
9944 * to adjust global state with pipes off. We need to do this
9945 * here so we can get the modeset_pipe updated config for the new
9946 * mode set on this crtc. For other crtcs we need to use the
9947 * adjusted_mode bits in the crtc directly.
9949 if (IS_VALLEYVIEW(dev)) {
9950 valleyview_modeset_global_pipes(dev, &prepare_pipes);
9952 /* may have added more to prepare_pipes than we should */
9953 prepare_pipes &= ~disable_pipes;
9956 for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
9957 intel_crtc_disable(&intel_crtc->base);
9959 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
9960 if (intel_crtc->base.enabled)
9961 dev_priv->display.crtc_disable(&intel_crtc->base);
9964 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
9965 * to set it here already despite that we pass it down the callchain.
9967 if (modeset_pipes) {
9969 /* mode_set/enable/disable functions rely on a correct pipe
9971 to_intel_crtc(crtc)->config = *pipe_config;
9972 to_intel_crtc(crtc)->new_config = &to_intel_crtc(crtc)->config;
9975 * Calculate and store various constants which
9976 * are later needed by vblank and swap-completion
9977 * timestamping. They are derived from true hwmode.
9979 drm_calc_timestamping_constants(crtc,
9980 &pipe_config->adjusted_mode);
9983 /* Only after disabling all output pipelines that will be changed can we
9984 * update the the output configuration. */
9985 intel_modeset_update_state(dev, prepare_pipes);
9987 if (dev_priv->display.modeset_global_resources)
9988 dev_priv->display.modeset_global_resources(dev);
9990 /* Set up the DPLL and any encoders state that needs to adjust or depend
9993 for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
9994 ret = intel_crtc_mode_set(&intel_crtc->base,
10000 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
10001 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
10002 dev_priv->display.crtc_enable(&intel_crtc->base);
10004 /* FIXME: add subpixel order */
10006 if (ret && crtc->enabled)
10007 crtc->mode = *saved_mode;
10010 kfree(pipe_config);
10015 static int intel_set_mode(struct drm_crtc *crtc,
10016 struct drm_display_mode *mode,
10017 int x, int y, struct drm_framebuffer *fb)
10021 ret = __intel_set_mode(crtc, mode, x, y, fb);
10024 intel_modeset_check_state(crtc->dev);
10029 void intel_crtc_restore_mode(struct drm_crtc *crtc)
10031 intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->primary->fb);
10034 #undef for_each_intel_crtc_masked
10036 static void intel_set_config_free(struct intel_set_config *config)
10041 kfree(config->save_connector_encoders);
10042 kfree(config->save_encoder_crtcs);
10043 kfree(config->save_crtc_enabled);
10047 static int intel_set_config_save_state(struct drm_device *dev,
10048 struct intel_set_config *config)
10050 struct drm_crtc *crtc;
10051 struct drm_encoder *encoder;
10052 struct drm_connector *connector;
10055 config->save_crtc_enabled =
10056 kcalloc(dev->mode_config.num_crtc,
10057 sizeof(bool), GFP_KERNEL);
10058 if (!config->save_crtc_enabled)
10061 config->save_encoder_crtcs =
10062 kcalloc(dev->mode_config.num_encoder,
10063 sizeof(struct drm_crtc *), GFP_KERNEL);
10064 if (!config->save_encoder_crtcs)
10067 config->save_connector_encoders =
10068 kcalloc(dev->mode_config.num_connector,
10069 sizeof(struct drm_encoder *), GFP_KERNEL);
10070 if (!config->save_connector_encoders)
10073 /* Copy data. Note that driver private data is not affected.
10074 * Should anything bad happen only the expected state is
10075 * restored, not the drivers personal bookkeeping.
10078 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
10079 config->save_crtc_enabled[count++] = crtc->enabled;
10083 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
10084 config->save_encoder_crtcs[count++] = encoder->crtc;
10088 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
10089 config->save_connector_encoders[count++] = connector->encoder;
10095 static void intel_set_config_restore_state(struct drm_device *dev,
10096 struct intel_set_config *config)
10098 struct intel_crtc *crtc;
10099 struct intel_encoder *encoder;
10100 struct intel_connector *connector;
10104 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
10105 crtc->new_enabled = config->save_crtc_enabled[count++];
10107 if (crtc->new_enabled)
10108 crtc->new_config = &crtc->config;
10110 crtc->new_config = NULL;
10114 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
10115 encoder->new_crtc =
10116 to_intel_crtc(config->save_encoder_crtcs[count++]);
10120 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
10121 connector->new_encoder =
10122 to_intel_encoder(config->save_connector_encoders[count++]);
10127 is_crtc_connector_off(struct drm_mode_set *set)
10131 if (set->num_connectors == 0)
10134 if (WARN_ON(set->connectors == NULL))
10137 for (i = 0; i < set->num_connectors; i++)
10138 if (set->connectors[i]->encoder &&
10139 set->connectors[i]->encoder->crtc == set->crtc &&
10140 set->connectors[i]->dpms != DRM_MODE_DPMS_ON)
10147 intel_set_config_compute_mode_changes(struct drm_mode_set *set,
10148 struct intel_set_config *config)
10151 /* We should be able to check here if the fb has the same properties
10152 * and then just flip_or_move it */
10153 if (is_crtc_connector_off(set)) {
10154 config->mode_changed = true;
10155 } else if (set->crtc->primary->fb != set->fb) {
10156 /* If we have no fb then treat it as a full mode set */
10157 if (set->crtc->primary->fb == NULL) {
10158 struct intel_crtc *intel_crtc =
10159 to_intel_crtc(set->crtc);
10161 if (intel_crtc->active && i915.fastboot) {
10162 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
10163 config->fb_changed = true;
10165 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
10166 config->mode_changed = true;
10168 } else if (set->fb == NULL) {
10169 config->mode_changed = true;
10170 } else if (set->fb->pixel_format !=
10171 set->crtc->primary->fb->pixel_format) {
10172 config->mode_changed = true;
10174 config->fb_changed = true;
10178 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
10179 config->fb_changed = true;
10181 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
10182 DRM_DEBUG_KMS("modes are different, full mode set\n");
10183 drm_mode_debug_printmodeline(&set->crtc->mode);
10184 drm_mode_debug_printmodeline(set->mode);
10185 config->mode_changed = true;
10188 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
10189 set->crtc->base.id, config->mode_changed, config->fb_changed);
10193 intel_modeset_stage_output_state(struct drm_device *dev,
10194 struct drm_mode_set *set,
10195 struct intel_set_config *config)
10197 struct intel_connector *connector;
10198 struct intel_encoder *encoder;
10199 struct intel_crtc *crtc;
10202 /* The upper layers ensure that we either disable a crtc or have a list
10203 * of connectors. For paranoia, double-check this. */
10204 WARN_ON(!set->fb && (set->num_connectors != 0));
10205 WARN_ON(set->fb && (set->num_connectors == 0));
10207 list_for_each_entry(connector, &dev->mode_config.connector_list,
10209 /* Otherwise traverse passed in connector list and get encoders
10211 for (ro = 0; ro < set->num_connectors; ro++) {
10212 if (set->connectors[ro] == &connector->base) {
10213 connector->new_encoder = connector->encoder;
10218 /* If we disable the crtc, disable all its connectors. Also, if
10219 * the connector is on the changing crtc but not on the new
10220 * connector list, disable it. */
10221 if ((!set->fb || ro == set->num_connectors) &&
10222 connector->base.encoder &&
10223 connector->base.encoder->crtc == set->crtc) {
10224 connector->new_encoder = NULL;
10226 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
10227 connector->base.base.id,
10228 drm_get_connector_name(&connector->base));
10232 if (&connector->new_encoder->base != connector->base.encoder) {
10233 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
10234 config->mode_changed = true;
10237 /* connector->new_encoder is now updated for all connectors. */
10239 /* Update crtc of enabled connectors. */
10240 list_for_each_entry(connector, &dev->mode_config.connector_list,
10242 struct drm_crtc *new_crtc;
10244 if (!connector->new_encoder)
10247 new_crtc = connector->new_encoder->base.crtc;
10249 for (ro = 0; ro < set->num_connectors; ro++) {
10250 if (set->connectors[ro] == &connector->base)
10251 new_crtc = set->crtc;
10254 /* Make sure the new CRTC will work with the encoder */
10255 if (!drm_encoder_crtc_ok(&connector->new_encoder->base,
10259 connector->encoder->new_crtc = to_intel_crtc(new_crtc);
10261 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
10262 connector->base.base.id,
10263 drm_get_connector_name(&connector->base),
10264 new_crtc->base.id);
10267 /* Check for any encoders that needs to be disabled. */
10268 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
10270 int num_connectors = 0;
10271 list_for_each_entry(connector,
10272 &dev->mode_config.connector_list,
10274 if (connector->new_encoder == encoder) {
10275 WARN_ON(!connector->new_encoder->new_crtc);
10280 if (num_connectors == 0)
10281 encoder->new_crtc = NULL;
10282 else if (num_connectors > 1)
10285 /* Only now check for crtc changes so we don't miss encoders
10286 * that will be disabled. */
10287 if (&encoder->new_crtc->base != encoder->base.crtc) {
10288 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
10289 config->mode_changed = true;
10292 /* Now we've also updated encoder->new_crtc for all encoders. */
10294 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
10296 crtc->new_enabled = false;
10298 list_for_each_entry(encoder,
10299 &dev->mode_config.encoder_list,
10301 if (encoder->new_crtc == crtc) {
10302 crtc->new_enabled = true;
10307 if (crtc->new_enabled != crtc->base.enabled) {
10308 DRM_DEBUG_KMS("crtc %sabled, full mode switch\n",
10309 crtc->new_enabled ? "en" : "dis");
10310 config->mode_changed = true;
10313 if (crtc->new_enabled)
10314 crtc->new_config = &crtc->config;
10316 crtc->new_config = NULL;
10322 static void disable_crtc_nofb(struct intel_crtc *crtc)
10324 struct drm_device *dev = crtc->base.dev;
10325 struct intel_encoder *encoder;
10326 struct intel_connector *connector;
10328 DRM_DEBUG_KMS("Trying to restore without FB -> disabling pipe %c\n",
10329 pipe_name(crtc->pipe));
10331 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
10332 if (connector->new_encoder &&
10333 connector->new_encoder->new_crtc == crtc)
10334 connector->new_encoder = NULL;
10337 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
10338 if (encoder->new_crtc == crtc)
10339 encoder->new_crtc = NULL;
10342 crtc->new_enabled = false;
10343 crtc->new_config = NULL;
10346 static int intel_crtc_set_config(struct drm_mode_set *set)
10348 struct drm_device *dev;
10349 struct drm_mode_set save_set;
10350 struct intel_set_config *config;
10354 BUG_ON(!set->crtc);
10355 BUG_ON(!set->crtc->helper_private);
10357 /* Enforce sane interface api - has been abused by the fb helper. */
10358 BUG_ON(!set->mode && set->fb);
10359 BUG_ON(set->fb && set->num_connectors == 0);
10362 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
10363 set->crtc->base.id, set->fb->base.id,
10364 (int)set->num_connectors, set->x, set->y);
10366 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
10369 dev = set->crtc->dev;
10372 config = kzalloc(sizeof(*config), GFP_KERNEL);
10376 ret = intel_set_config_save_state(dev, config);
10380 save_set.crtc = set->crtc;
10381 save_set.mode = &set->crtc->mode;
10382 save_set.x = set->crtc->x;
10383 save_set.y = set->crtc->y;
10384 save_set.fb = set->crtc->primary->fb;
10386 /* Compute whether we need a full modeset, only an fb base update or no
10387 * change at all. In the future we might also check whether only the
10388 * mode changed, e.g. for LVDS where we only change the panel fitter in
10390 intel_set_config_compute_mode_changes(set, config);
10392 ret = intel_modeset_stage_output_state(dev, set, config);
10396 if (config->mode_changed) {
10397 ret = intel_set_mode(set->crtc, set->mode,
10398 set->x, set->y, set->fb);
10399 } else if (config->fb_changed) {
10400 intel_crtc_wait_for_pending_flips(set->crtc);
10402 ret = intel_pipe_set_base(set->crtc,
10403 set->x, set->y, set->fb);
10405 * In the fastboot case this may be our only check of the
10406 * state after boot. It would be better to only do it on
10407 * the first update, but we don't have a nice way of doing that
10408 * (and really, set_config isn't used much for high freq page
10409 * flipping, so increasing its cost here shouldn't be a big
10412 if (i915.fastboot && ret == 0)
10413 intel_modeset_check_state(set->crtc->dev);
10417 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
10418 set->crtc->base.id, ret);
10420 intel_set_config_restore_state(dev, config);
10423 * HACK: if the pipe was on, but we didn't have a framebuffer,
10424 * force the pipe off to avoid oopsing in the modeset code
10425 * due to fb==NULL. This should only happen during boot since
10426 * we don't yet reconstruct the FB from the hardware state.
10428 if (to_intel_crtc(save_set.crtc)->new_enabled && !save_set.fb)
10429 disable_crtc_nofb(to_intel_crtc(save_set.crtc));
10431 /* Try to restore the config */
10432 if (config->mode_changed &&
10433 intel_set_mode(save_set.crtc, save_set.mode,
10434 save_set.x, save_set.y, save_set.fb))
10435 DRM_ERROR("failed to restore config after modeset failure\n");
10439 intel_set_config_free(config);
10443 static const struct drm_crtc_funcs intel_crtc_funcs = {
10444 .cursor_set = intel_crtc_cursor_set,
10445 .cursor_move = intel_crtc_cursor_move,
10446 .gamma_set = intel_crtc_gamma_set,
10447 .set_config = intel_crtc_set_config,
10448 .destroy = intel_crtc_destroy,
10449 .page_flip = intel_crtc_page_flip,
10452 static void intel_cpu_pll_init(struct drm_device *dev)
10455 intel_ddi_pll_init(dev);
10458 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv,
10459 struct intel_shared_dpll *pll,
10460 struct intel_dpll_hw_state *hw_state)
10464 val = I915_READ(PCH_DPLL(pll->id));
10465 hw_state->dpll = val;
10466 hw_state->fp0 = I915_READ(PCH_FP0(pll->id));
10467 hw_state->fp1 = I915_READ(PCH_FP1(pll->id));
10469 return val & DPLL_VCO_ENABLE;
10472 static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv,
10473 struct intel_shared_dpll *pll)
10475 I915_WRITE(PCH_FP0(pll->id), pll->hw_state.fp0);
10476 I915_WRITE(PCH_FP1(pll->id), pll->hw_state.fp1);
10479 static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv,
10480 struct intel_shared_dpll *pll)
10482 /* PCH refclock must be enabled first */
10483 ibx_assert_pch_refclk_enabled(dev_priv);
10485 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
10487 /* Wait for the clocks to stabilize. */
10488 POSTING_READ(PCH_DPLL(pll->id));
10491 /* The pixel multiplier can only be updated once the
10492 * DPLL is enabled and the clocks are stable.
10494 * So write it again.
10496 I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
10497 POSTING_READ(PCH_DPLL(pll->id));
10501 static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv,
10502 struct intel_shared_dpll *pll)
10504 struct drm_device *dev = dev_priv->dev;
10505 struct intel_crtc *crtc;
10507 /* Make sure no transcoder isn't still depending on us. */
10508 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
10509 if (intel_crtc_to_shared_dpll(crtc) == pll)
10510 assert_pch_transcoder_disabled(dev_priv, crtc->pipe);
10513 I915_WRITE(PCH_DPLL(pll->id), 0);
10514 POSTING_READ(PCH_DPLL(pll->id));
10518 static char *ibx_pch_dpll_names[] = {
10523 static void ibx_pch_dpll_init(struct drm_device *dev)
10525 struct drm_i915_private *dev_priv = dev->dev_private;
10528 dev_priv->num_shared_dpll = 2;
10530 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
10531 dev_priv->shared_dplls[i].id = i;
10532 dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i];
10533 dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set;
10534 dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable;
10535 dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable;
10536 dev_priv->shared_dplls[i].get_hw_state =
10537 ibx_pch_dpll_get_hw_state;
10541 static void intel_shared_dpll_init(struct drm_device *dev)
10543 struct drm_i915_private *dev_priv = dev->dev_private;
10545 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
10546 ibx_pch_dpll_init(dev);
10548 dev_priv->num_shared_dpll = 0;
10550 BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS);
10553 static void intel_crtc_init(struct drm_device *dev, int pipe)
10555 struct drm_i915_private *dev_priv = dev->dev_private;
10556 struct intel_crtc *intel_crtc;
10559 intel_crtc = kzalloc(sizeof(*intel_crtc), GFP_KERNEL);
10560 if (intel_crtc == NULL)
10563 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
10565 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
10566 for (i = 0; i < 256; i++) {
10567 intel_crtc->lut_r[i] = i;
10568 intel_crtc->lut_g[i] = i;
10569 intel_crtc->lut_b[i] = i;
10573 * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port
10574 * is hooked to plane B. Hence we want plane A feeding pipe B.
10576 intel_crtc->pipe = pipe;
10577 intel_crtc->plane = pipe;
10578 if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) {
10579 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
10580 intel_crtc->plane = !pipe;
10583 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
10584 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
10585 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
10586 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
10588 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
10591 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector)
10593 struct drm_encoder *encoder = connector->base.encoder;
10595 WARN_ON(!mutex_is_locked(&connector->base.dev->mode_config.mutex));
10598 return INVALID_PIPE;
10600 return to_intel_crtc(encoder->crtc)->pipe;
10603 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
10604 struct drm_file *file)
10606 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
10607 struct drm_mode_object *drmmode_obj;
10608 struct intel_crtc *crtc;
10610 if (!drm_core_check_feature(dev, DRIVER_MODESET))
10613 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
10614 DRM_MODE_OBJECT_CRTC);
10616 if (!drmmode_obj) {
10617 DRM_ERROR("no such CRTC id\n");
10621 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
10622 pipe_from_crtc_id->pipe = crtc->pipe;
10627 static int intel_encoder_clones(struct intel_encoder *encoder)
10629 struct drm_device *dev = encoder->base.dev;
10630 struct intel_encoder *source_encoder;
10631 int index_mask = 0;
10634 list_for_each_entry(source_encoder,
10635 &dev->mode_config.encoder_list, base.head) {
10636 if (encoders_cloneable(encoder, source_encoder))
10637 index_mask |= (1 << entry);
10645 static bool has_edp_a(struct drm_device *dev)
10647 struct drm_i915_private *dev_priv = dev->dev_private;
10649 if (!IS_MOBILE(dev))
10652 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
10655 if (IS_GEN5(dev) && (I915_READ(FUSE_STRAP) & ILK_eDP_A_DISABLE))
10661 const char *intel_output_name(int output)
10663 static const char *names[] = {
10664 [INTEL_OUTPUT_UNUSED] = "Unused",
10665 [INTEL_OUTPUT_ANALOG] = "Analog",
10666 [INTEL_OUTPUT_DVO] = "DVO",
10667 [INTEL_OUTPUT_SDVO] = "SDVO",
10668 [INTEL_OUTPUT_LVDS] = "LVDS",
10669 [INTEL_OUTPUT_TVOUT] = "TV",
10670 [INTEL_OUTPUT_HDMI] = "HDMI",
10671 [INTEL_OUTPUT_DISPLAYPORT] = "DisplayPort",
10672 [INTEL_OUTPUT_EDP] = "eDP",
10673 [INTEL_OUTPUT_DSI] = "DSI",
10674 [INTEL_OUTPUT_UNKNOWN] = "Unknown",
10677 if (output < 0 || output >= ARRAY_SIZE(names) || !names[output])
10680 return names[output];
10683 static void intel_setup_outputs(struct drm_device *dev)
10685 struct drm_i915_private *dev_priv = dev->dev_private;
10686 struct intel_encoder *encoder;
10687 bool dpd_is_edp = false;
10689 intel_lvds_init(dev);
10692 intel_crt_init(dev);
10694 if (HAS_DDI(dev)) {
10697 /* Haswell uses DDI functions to detect digital outputs */
10698 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
10699 /* DDI A only supports eDP */
10701 intel_ddi_init(dev, PORT_A);
10703 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
10705 found = I915_READ(SFUSE_STRAP);
10707 if (found & SFUSE_STRAP_DDIB_DETECTED)
10708 intel_ddi_init(dev, PORT_B);
10709 if (found & SFUSE_STRAP_DDIC_DETECTED)
10710 intel_ddi_init(dev, PORT_C);
10711 if (found & SFUSE_STRAP_DDID_DETECTED)
10712 intel_ddi_init(dev, PORT_D);
10713 } else if (HAS_PCH_SPLIT(dev)) {
10715 dpd_is_edp = intel_dp_is_edp(dev, PORT_D);
10717 if (has_edp_a(dev))
10718 intel_dp_init(dev, DP_A, PORT_A);
10720 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
10721 /* PCH SDVOB multiplex with HDMIB */
10722 found = intel_sdvo_init(dev, PCH_SDVOB, true);
10724 intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
10725 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
10726 intel_dp_init(dev, PCH_DP_B, PORT_B);
10729 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
10730 intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
10732 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
10733 intel_hdmi_init(dev, PCH_HDMID, PORT_D);
10735 if (I915_READ(PCH_DP_C) & DP_DETECTED)
10736 intel_dp_init(dev, PCH_DP_C, PORT_C);
10738 if (I915_READ(PCH_DP_D) & DP_DETECTED)
10739 intel_dp_init(dev, PCH_DP_D, PORT_D);
10740 } else if (IS_VALLEYVIEW(dev)) {
10741 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
10742 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
10744 if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
10745 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
10748 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED) {
10749 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC,
10751 if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
10752 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C);
10755 intel_dsi_init(dev);
10756 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
10757 bool found = false;
10759 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
10760 DRM_DEBUG_KMS("probing SDVOB\n");
10761 found = intel_sdvo_init(dev, GEN3_SDVOB, true);
10762 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
10763 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
10764 intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
10767 if (!found && SUPPORTS_INTEGRATED_DP(dev))
10768 intel_dp_init(dev, DP_B, PORT_B);
10771 /* Before G4X SDVOC doesn't have its own detect register */
10773 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
10774 DRM_DEBUG_KMS("probing SDVOC\n");
10775 found = intel_sdvo_init(dev, GEN3_SDVOC, false);
10778 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
10780 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
10781 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
10782 intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
10784 if (SUPPORTS_INTEGRATED_DP(dev))
10785 intel_dp_init(dev, DP_C, PORT_C);
10788 if (SUPPORTS_INTEGRATED_DP(dev) &&
10789 (I915_READ(DP_D) & DP_DETECTED))
10790 intel_dp_init(dev, DP_D, PORT_D);
10791 } else if (IS_GEN2(dev))
10792 intel_dvo_init(dev);
10794 if (SUPPORTS_TV(dev))
10795 intel_tv_init(dev);
10797 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
10798 encoder->base.possible_crtcs = encoder->crtc_mask;
10799 encoder->base.possible_clones =
10800 intel_encoder_clones(encoder);
10803 intel_init_pch_refclk(dev);
10805 drm_helper_move_panel_connectors_to_head(dev);
10808 static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
10810 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
10812 drm_framebuffer_cleanup(fb);
10813 WARN_ON(!intel_fb->obj->framebuffer_references--);
10814 drm_gem_object_unreference_unlocked(&intel_fb->obj->base);
10818 static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
10819 struct drm_file *file,
10820 unsigned int *handle)
10822 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
10823 struct drm_i915_gem_object *obj = intel_fb->obj;
10825 return drm_gem_handle_create(file, &obj->base, handle);
10828 static const struct drm_framebuffer_funcs intel_fb_funcs = {
10829 .destroy = intel_user_framebuffer_destroy,
10830 .create_handle = intel_user_framebuffer_create_handle,
10833 static int intel_framebuffer_init(struct drm_device *dev,
10834 struct intel_framebuffer *intel_fb,
10835 struct drm_mode_fb_cmd2 *mode_cmd,
10836 struct drm_i915_gem_object *obj)
10838 int aligned_height;
10842 WARN_ON(!mutex_is_locked(&dev->struct_mutex));
10844 if (obj->tiling_mode == I915_TILING_Y) {
10845 DRM_DEBUG("hardware does not support tiling Y\n");
10849 if (mode_cmd->pitches[0] & 63) {
10850 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
10851 mode_cmd->pitches[0]);
10855 if (INTEL_INFO(dev)->gen >= 5 && !IS_VALLEYVIEW(dev)) {
10856 pitch_limit = 32*1024;
10857 } else if (INTEL_INFO(dev)->gen >= 4) {
10858 if (obj->tiling_mode)
10859 pitch_limit = 16*1024;
10861 pitch_limit = 32*1024;
10862 } else if (INTEL_INFO(dev)->gen >= 3) {
10863 if (obj->tiling_mode)
10864 pitch_limit = 8*1024;
10866 pitch_limit = 16*1024;
10868 /* XXX DSPC is limited to 4k tiled */
10869 pitch_limit = 8*1024;
10871 if (mode_cmd->pitches[0] > pitch_limit) {
10872 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
10873 obj->tiling_mode ? "tiled" : "linear",
10874 mode_cmd->pitches[0], pitch_limit);
10878 if (obj->tiling_mode != I915_TILING_NONE &&
10879 mode_cmd->pitches[0] != obj->stride) {
10880 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
10881 mode_cmd->pitches[0], obj->stride);
10885 /* Reject formats not supported by any plane early. */
10886 switch (mode_cmd->pixel_format) {
10887 case DRM_FORMAT_C8:
10888 case DRM_FORMAT_RGB565:
10889 case DRM_FORMAT_XRGB8888:
10890 case DRM_FORMAT_ARGB8888:
10892 case DRM_FORMAT_XRGB1555:
10893 case DRM_FORMAT_ARGB1555:
10894 if (INTEL_INFO(dev)->gen > 3) {
10895 DRM_DEBUG("unsupported pixel format: %s\n",
10896 drm_get_format_name(mode_cmd->pixel_format));
10900 case DRM_FORMAT_XBGR8888:
10901 case DRM_FORMAT_ABGR8888:
10902 case DRM_FORMAT_XRGB2101010:
10903 case DRM_FORMAT_ARGB2101010:
10904 case DRM_FORMAT_XBGR2101010:
10905 case DRM_FORMAT_ABGR2101010:
10906 if (INTEL_INFO(dev)->gen < 4) {
10907 DRM_DEBUG("unsupported pixel format: %s\n",
10908 drm_get_format_name(mode_cmd->pixel_format));
10912 case DRM_FORMAT_YUYV:
10913 case DRM_FORMAT_UYVY:
10914 case DRM_FORMAT_YVYU:
10915 case DRM_FORMAT_VYUY:
10916 if (INTEL_INFO(dev)->gen < 5) {
10917 DRM_DEBUG("unsupported pixel format: %s\n",
10918 drm_get_format_name(mode_cmd->pixel_format));
10923 DRM_DEBUG("unsupported pixel format: %s\n",
10924 drm_get_format_name(mode_cmd->pixel_format));
10928 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
10929 if (mode_cmd->offsets[0] != 0)
10932 aligned_height = intel_align_height(dev, mode_cmd->height,
10934 /* FIXME drm helper for size checks (especially planar formats)? */
10935 if (obj->base.size < aligned_height * mode_cmd->pitches[0])
10938 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
10939 intel_fb->obj = obj;
10940 intel_fb->obj->framebuffer_references++;
10942 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
10944 DRM_ERROR("framebuffer init failed %d\n", ret);
10951 static struct drm_framebuffer *
10952 intel_user_framebuffer_create(struct drm_device *dev,
10953 struct drm_file *filp,
10954 struct drm_mode_fb_cmd2 *mode_cmd)
10956 struct drm_i915_gem_object *obj;
10958 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
10959 mode_cmd->handles[0]));
10960 if (&obj->base == NULL)
10961 return ERR_PTR(-ENOENT);
10963 return intel_framebuffer_create(dev, mode_cmd, obj);
10966 #ifndef CONFIG_DRM_I915_FBDEV
10967 static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
10972 static const struct drm_mode_config_funcs intel_mode_funcs = {
10973 .fb_create = intel_user_framebuffer_create,
10974 .output_poll_changed = intel_fbdev_output_poll_changed,
10977 /* Set up chip specific display functions */
10978 static void intel_init_display(struct drm_device *dev)
10980 struct drm_i915_private *dev_priv = dev->dev_private;
10982 if (HAS_PCH_SPLIT(dev) || IS_G4X(dev))
10983 dev_priv->display.find_dpll = g4x_find_best_dpll;
10984 else if (IS_VALLEYVIEW(dev))
10985 dev_priv->display.find_dpll = vlv_find_best_dpll;
10986 else if (IS_PINEVIEW(dev))
10987 dev_priv->display.find_dpll = pnv_find_best_dpll;
10989 dev_priv->display.find_dpll = i9xx_find_best_dpll;
10991 if (HAS_DDI(dev)) {
10992 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
10993 dev_priv->display.get_plane_config = ironlake_get_plane_config;
10994 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
10995 dev_priv->display.crtc_enable = haswell_crtc_enable;
10996 dev_priv->display.crtc_disable = haswell_crtc_disable;
10997 dev_priv->display.off = haswell_crtc_off;
10998 dev_priv->display.update_primary_plane =
10999 ironlake_update_primary_plane;
11000 } else if (HAS_PCH_SPLIT(dev)) {
11001 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
11002 dev_priv->display.get_plane_config = ironlake_get_plane_config;
11003 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
11004 dev_priv->display.crtc_enable = ironlake_crtc_enable;
11005 dev_priv->display.crtc_disable = ironlake_crtc_disable;
11006 dev_priv->display.off = ironlake_crtc_off;
11007 dev_priv->display.update_primary_plane =
11008 ironlake_update_primary_plane;
11009 } else if (IS_VALLEYVIEW(dev)) {
11010 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
11011 dev_priv->display.get_plane_config = i9xx_get_plane_config;
11012 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
11013 dev_priv->display.crtc_enable = valleyview_crtc_enable;
11014 dev_priv->display.crtc_disable = i9xx_crtc_disable;
11015 dev_priv->display.off = i9xx_crtc_off;
11016 dev_priv->display.update_primary_plane =
11017 i9xx_update_primary_plane;
11019 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
11020 dev_priv->display.get_plane_config = i9xx_get_plane_config;
11021 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
11022 dev_priv->display.crtc_enable = i9xx_crtc_enable;
11023 dev_priv->display.crtc_disable = i9xx_crtc_disable;
11024 dev_priv->display.off = i9xx_crtc_off;
11025 dev_priv->display.update_primary_plane =
11026 i9xx_update_primary_plane;
11029 /* Returns the core display clock speed */
11030 if (IS_VALLEYVIEW(dev))
11031 dev_priv->display.get_display_clock_speed =
11032 valleyview_get_display_clock_speed;
11033 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
11034 dev_priv->display.get_display_clock_speed =
11035 i945_get_display_clock_speed;
11036 else if (IS_I915G(dev))
11037 dev_priv->display.get_display_clock_speed =
11038 i915_get_display_clock_speed;
11039 else if (IS_I945GM(dev) || IS_845G(dev))
11040 dev_priv->display.get_display_clock_speed =
11041 i9xx_misc_get_display_clock_speed;
11042 else if (IS_PINEVIEW(dev))
11043 dev_priv->display.get_display_clock_speed =
11044 pnv_get_display_clock_speed;
11045 else if (IS_I915GM(dev))
11046 dev_priv->display.get_display_clock_speed =
11047 i915gm_get_display_clock_speed;
11048 else if (IS_I865G(dev))
11049 dev_priv->display.get_display_clock_speed =
11050 i865_get_display_clock_speed;
11051 else if (IS_I85X(dev))
11052 dev_priv->display.get_display_clock_speed =
11053 i855_get_display_clock_speed;
11054 else /* 852, 830 */
11055 dev_priv->display.get_display_clock_speed =
11056 i830_get_display_clock_speed;
11058 if (HAS_PCH_SPLIT(dev)) {
11059 if (IS_GEN5(dev)) {
11060 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
11061 dev_priv->display.write_eld = ironlake_write_eld;
11062 } else if (IS_GEN6(dev)) {
11063 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
11064 dev_priv->display.write_eld = ironlake_write_eld;
11065 dev_priv->display.modeset_global_resources =
11066 snb_modeset_global_resources;
11067 } else if (IS_IVYBRIDGE(dev)) {
11068 /* FIXME: detect B0+ stepping and use auto training */
11069 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
11070 dev_priv->display.write_eld = ironlake_write_eld;
11071 dev_priv->display.modeset_global_resources =
11072 ivb_modeset_global_resources;
11073 } else if (IS_HASWELL(dev) || IS_GEN8(dev)) {
11074 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
11075 dev_priv->display.write_eld = haswell_write_eld;
11076 dev_priv->display.modeset_global_resources =
11077 haswell_modeset_global_resources;
11079 } else if (IS_G4X(dev)) {
11080 dev_priv->display.write_eld = g4x_write_eld;
11081 } else if (IS_VALLEYVIEW(dev)) {
11082 dev_priv->display.modeset_global_resources =
11083 valleyview_modeset_global_resources;
11084 dev_priv->display.write_eld = ironlake_write_eld;
11087 /* Default just returns -ENODEV to indicate unsupported */
11088 dev_priv->display.queue_flip = intel_default_queue_flip;
11090 switch (INTEL_INFO(dev)->gen) {
11092 dev_priv->display.queue_flip = intel_gen2_queue_flip;
11096 dev_priv->display.queue_flip = intel_gen3_queue_flip;
11101 dev_priv->display.queue_flip = intel_gen4_queue_flip;
11105 dev_priv->display.queue_flip = intel_gen6_queue_flip;
11108 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
11109 dev_priv->display.queue_flip = intel_gen7_queue_flip;
11113 intel_panel_init_backlight_funcs(dev);
11117 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
11118 * resume, or other times. This quirk makes sure that's the case for
11119 * affected systems.
11121 static void quirk_pipea_force(struct drm_device *dev)
11123 struct drm_i915_private *dev_priv = dev->dev_private;
11125 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
11126 DRM_INFO("applying pipe a force quirk\n");
11130 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
11132 static void quirk_ssc_force_disable(struct drm_device *dev)
11134 struct drm_i915_private *dev_priv = dev->dev_private;
11135 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
11136 DRM_INFO("applying lvds SSC disable quirk\n");
11140 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
11143 static void quirk_invert_brightness(struct drm_device *dev)
11145 struct drm_i915_private *dev_priv = dev->dev_private;
11146 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
11147 DRM_INFO("applying inverted panel brightness quirk\n");
11150 struct intel_quirk {
11152 int subsystem_vendor;
11153 int subsystem_device;
11154 void (*hook)(struct drm_device *dev);
11157 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
11158 struct intel_dmi_quirk {
11159 void (*hook)(struct drm_device *dev);
11160 const struct dmi_system_id (*dmi_id_list)[];
11163 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
11165 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
11169 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
11171 .dmi_id_list = &(const struct dmi_system_id[]) {
11173 .callback = intel_dmi_reverse_brightness,
11174 .ident = "NCR Corporation",
11175 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
11176 DMI_MATCH(DMI_PRODUCT_NAME, ""),
11179 { } /* terminating entry */
11181 .hook = quirk_invert_brightness,
11185 static struct intel_quirk intel_quirks[] = {
11186 /* HP Mini needs pipe A force quirk (LP: #322104) */
11187 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
11189 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
11190 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
11192 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
11193 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
11195 /* 830 needs to leave pipe A & dpll A up */
11196 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
11198 /* Lenovo U160 cannot use SSC on LVDS */
11199 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
11201 /* Sony Vaio Y cannot use SSC on LVDS */
11202 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
11204 /* Acer Aspire 5734Z must invert backlight brightness */
11205 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
11207 /* Acer/eMachines G725 */
11208 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
11210 /* Acer/eMachines e725 */
11211 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
11213 /* Acer/Packard Bell NCL20 */
11214 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
11216 /* Acer Aspire 4736Z */
11217 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
11219 /* Acer Aspire 5336 */
11220 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
11223 static void intel_init_quirks(struct drm_device *dev)
11225 struct pci_dev *d = dev->pdev;
11228 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
11229 struct intel_quirk *q = &intel_quirks[i];
11231 if (d->device == q->device &&
11232 (d->subsystem_vendor == q->subsystem_vendor ||
11233 q->subsystem_vendor == PCI_ANY_ID) &&
11234 (d->subsystem_device == q->subsystem_device ||
11235 q->subsystem_device == PCI_ANY_ID))
11238 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
11239 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
11240 intel_dmi_quirks[i].hook(dev);
11244 /* Disable the VGA plane that we never use */
11245 static void i915_disable_vga(struct drm_device *dev)
11247 struct drm_i915_private *dev_priv = dev->dev_private;
11249 u32 vga_reg = i915_vgacntrl_reg(dev);
11251 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
11252 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
11253 outb(SR01, VGA_SR_INDEX);
11254 sr1 = inb(VGA_SR_DATA);
11255 outb(sr1 | 1<<5, VGA_SR_DATA);
11256 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
11259 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
11260 POSTING_READ(vga_reg);
11263 void intel_modeset_init_hw(struct drm_device *dev)
11265 intel_prepare_ddi(dev);
11267 intel_init_clock_gating(dev);
11269 intel_reset_dpio(dev);
11271 mutex_lock(&dev->struct_mutex);
11272 intel_enable_gt_powersave(dev);
11273 mutex_unlock(&dev->struct_mutex);
11276 void intel_modeset_suspend_hw(struct drm_device *dev)
11278 intel_suspend_hw(dev);
11281 void intel_modeset_init(struct drm_device *dev)
11283 struct drm_i915_private *dev_priv = dev->dev_private;
11286 struct intel_crtc *crtc;
11288 drm_mode_config_init(dev);
11290 dev->mode_config.min_width = 0;
11291 dev->mode_config.min_height = 0;
11293 dev->mode_config.preferred_depth = 24;
11294 dev->mode_config.prefer_shadow = 1;
11296 dev->mode_config.funcs = &intel_mode_funcs;
11298 intel_init_quirks(dev);
11300 intel_init_pm(dev);
11302 if (INTEL_INFO(dev)->num_pipes == 0)
11305 intel_init_display(dev);
11307 if (IS_GEN2(dev)) {
11308 dev->mode_config.max_width = 2048;
11309 dev->mode_config.max_height = 2048;
11310 } else if (IS_GEN3(dev)) {
11311 dev->mode_config.max_width = 4096;
11312 dev->mode_config.max_height = 4096;
11314 dev->mode_config.max_width = 8192;
11315 dev->mode_config.max_height = 8192;
11318 if (IS_GEN2(dev)) {
11319 dev->mode_config.cursor_width = GEN2_CURSOR_WIDTH;
11320 dev->mode_config.cursor_height = GEN2_CURSOR_HEIGHT;
11322 dev->mode_config.cursor_width = MAX_CURSOR_WIDTH;
11323 dev->mode_config.cursor_height = MAX_CURSOR_HEIGHT;
11326 dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
11328 DRM_DEBUG_KMS("%d display pipe%s available.\n",
11329 INTEL_INFO(dev)->num_pipes,
11330 INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
11332 for_each_pipe(pipe) {
11333 intel_crtc_init(dev, pipe);
11334 for_each_sprite(pipe, sprite) {
11335 ret = intel_plane_init(dev, pipe, sprite);
11337 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
11338 pipe_name(pipe), sprite_name(pipe, sprite), ret);
11342 intel_init_dpio(dev);
11343 intel_reset_dpio(dev);
11345 intel_cpu_pll_init(dev);
11346 intel_shared_dpll_init(dev);
11348 /* Just disable it once at startup */
11349 i915_disable_vga(dev);
11350 intel_setup_outputs(dev);
11352 /* Just in case the BIOS is doing something questionable. */
11353 intel_disable_fbc(dev);
11355 mutex_lock(&dev->mode_config.mutex);
11356 intel_modeset_setup_hw_state(dev, false);
11357 mutex_unlock(&dev->mode_config.mutex);
11359 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
11365 * Note that reserving the BIOS fb up front prevents us
11366 * from stuffing other stolen allocations like the ring
11367 * on top. This prevents some ugliness at boot time, and
11368 * can even allow for smooth boot transitions if the BIOS
11369 * fb is large enough for the active pipe configuration.
11371 if (dev_priv->display.get_plane_config) {
11372 dev_priv->display.get_plane_config(crtc,
11373 &crtc->plane_config);
11375 * If the fb is shared between multiple heads, we'll
11376 * just get the first one.
11378 intel_find_plane_obj(crtc, &crtc->plane_config);
11384 intel_connector_break_all_links(struct intel_connector *connector)
11386 connector->base.dpms = DRM_MODE_DPMS_OFF;
11387 connector->base.encoder = NULL;
11388 connector->encoder->connectors_active = false;
11389 connector->encoder->base.crtc = NULL;
11392 static void intel_enable_pipe_a(struct drm_device *dev)
11394 struct intel_connector *connector;
11395 struct drm_connector *crt = NULL;
11396 struct intel_load_detect_pipe load_detect_temp;
11398 /* We can't just switch on the pipe A, we need to set things up with a
11399 * proper mode and output configuration. As a gross hack, enable pipe A
11400 * by enabling the load detect pipe once. */
11401 list_for_each_entry(connector,
11402 &dev->mode_config.connector_list,
11404 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
11405 crt = &connector->base;
11413 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
11414 intel_release_load_detect_pipe(crt, &load_detect_temp);
11420 intel_check_plane_mapping(struct intel_crtc *crtc)
11422 struct drm_device *dev = crtc->base.dev;
11423 struct drm_i915_private *dev_priv = dev->dev_private;
11426 if (INTEL_INFO(dev)->num_pipes == 1)
11429 reg = DSPCNTR(!crtc->plane);
11430 val = I915_READ(reg);
11432 if ((val & DISPLAY_PLANE_ENABLE) &&
11433 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
11439 static void intel_sanitize_crtc(struct intel_crtc *crtc)
11441 struct drm_device *dev = crtc->base.dev;
11442 struct drm_i915_private *dev_priv = dev->dev_private;
11445 /* Clear any frame start delays used for debugging left by the BIOS */
11446 reg = PIPECONF(crtc->config.cpu_transcoder);
11447 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
11449 /* We need to sanitize the plane -> pipe mapping first because this will
11450 * disable the crtc (and hence change the state) if it is wrong. Note
11451 * that gen4+ has a fixed plane -> pipe mapping. */
11452 if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
11453 struct intel_connector *connector;
11456 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
11457 crtc->base.base.id);
11459 /* Pipe has the wrong plane attached and the plane is active.
11460 * Temporarily change the plane mapping and disable everything
11462 plane = crtc->plane;
11463 crtc->plane = !plane;
11464 dev_priv->display.crtc_disable(&crtc->base);
11465 crtc->plane = plane;
11467 /* ... and break all links. */
11468 list_for_each_entry(connector, &dev->mode_config.connector_list,
11470 if (connector->encoder->base.crtc != &crtc->base)
11473 intel_connector_break_all_links(connector);
11476 WARN_ON(crtc->active);
11477 crtc->base.enabled = false;
11480 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
11481 crtc->pipe == PIPE_A && !crtc->active) {
11482 /* BIOS forgot to enable pipe A, this mostly happens after
11483 * resume. Force-enable the pipe to fix this, the update_dpms
11484 * call below we restore the pipe to the right state, but leave
11485 * the required bits on. */
11486 intel_enable_pipe_a(dev);
11489 /* Adjust the state of the output pipe according to whether we
11490 * have active connectors/encoders. */
11491 intel_crtc_update_dpms(&crtc->base);
11493 if (crtc->active != crtc->base.enabled) {
11494 struct intel_encoder *encoder;
11496 /* This can happen either due to bugs in the get_hw_state
11497 * functions or because the pipe is force-enabled due to the
11499 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
11500 crtc->base.base.id,
11501 crtc->base.enabled ? "enabled" : "disabled",
11502 crtc->active ? "enabled" : "disabled");
11504 crtc->base.enabled = crtc->active;
11506 /* Because we only establish the connector -> encoder ->
11507 * crtc links if something is active, this means the
11508 * crtc is now deactivated. Break the links. connector
11509 * -> encoder links are only establish when things are
11510 * actually up, hence no need to break them. */
11511 WARN_ON(crtc->active);
11513 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
11514 WARN_ON(encoder->connectors_active);
11515 encoder->base.crtc = NULL;
11518 if (crtc->active) {
11520 * We start out with underrun reporting disabled to avoid races.
11521 * For correct bookkeeping mark this on active crtcs.
11523 * No protection against concurrent access is required - at
11524 * worst a fifo underrun happens which also sets this to false.
11526 crtc->cpu_fifo_underrun_disabled = true;
11527 crtc->pch_fifo_underrun_disabled = true;
11531 static void intel_sanitize_encoder(struct intel_encoder *encoder)
11533 struct intel_connector *connector;
11534 struct drm_device *dev = encoder->base.dev;
11536 /* We need to check both for a crtc link (meaning that the
11537 * encoder is active and trying to read from a pipe) and the
11538 * pipe itself being active. */
11539 bool has_active_crtc = encoder->base.crtc &&
11540 to_intel_crtc(encoder->base.crtc)->active;
11542 if (encoder->connectors_active && !has_active_crtc) {
11543 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
11544 encoder->base.base.id,
11545 drm_get_encoder_name(&encoder->base));
11547 /* Connector is active, but has no active pipe. This is
11548 * fallout from our resume register restoring. Disable
11549 * the encoder manually again. */
11550 if (encoder->base.crtc) {
11551 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
11552 encoder->base.base.id,
11553 drm_get_encoder_name(&encoder->base));
11554 encoder->disable(encoder);
11557 /* Inconsistent output/port/pipe state happens presumably due to
11558 * a bug in one of the get_hw_state functions. Or someplace else
11559 * in our code, like the register restore mess on resume. Clamp
11560 * things to off as a safer default. */
11561 list_for_each_entry(connector,
11562 &dev->mode_config.connector_list,
11564 if (connector->encoder != encoder)
11567 intel_connector_break_all_links(connector);
11570 /* Enabled encoders without active connectors will be fixed in
11571 * the crtc fixup. */
11574 void i915_redisable_vga_power_on(struct drm_device *dev)
11576 struct drm_i915_private *dev_priv = dev->dev_private;
11577 u32 vga_reg = i915_vgacntrl_reg(dev);
11579 if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) {
11580 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
11581 i915_disable_vga(dev);
11585 void i915_redisable_vga(struct drm_device *dev)
11587 struct drm_i915_private *dev_priv = dev->dev_private;
11589 /* This function can be called both from intel_modeset_setup_hw_state or
11590 * at a very early point in our resume sequence, where the power well
11591 * structures are not yet restored. Since this function is at a very
11592 * paranoid "someone might have enabled VGA while we were not looking"
11593 * level, just check if the power well is enabled instead of trying to
11594 * follow the "don't touch the power well if we don't need it" policy
11595 * the rest of the driver uses. */
11596 if (!intel_display_power_enabled(dev_priv, POWER_DOMAIN_VGA))
11599 i915_redisable_vga_power_on(dev);
11602 static void intel_modeset_readout_hw_state(struct drm_device *dev)
11604 struct drm_i915_private *dev_priv = dev->dev_private;
11606 struct intel_crtc *crtc;
11607 struct intel_encoder *encoder;
11608 struct intel_connector *connector;
11611 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
11613 memset(&crtc->config, 0, sizeof(crtc->config));
11615 crtc->active = dev_priv->display.get_pipe_config(crtc,
11618 crtc->base.enabled = crtc->active;
11619 crtc->primary_enabled = crtc->active;
11621 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
11622 crtc->base.base.id,
11623 crtc->active ? "enabled" : "disabled");
11626 /* FIXME: Smash this into the new shared dpll infrastructure. */
11628 intel_ddi_setup_hw_pll_state(dev);
11630 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
11631 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
11633 pll->on = pll->get_hw_state(dev_priv, pll, &pll->hw_state);
11635 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
11637 if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
11640 pll->refcount = pll->active;
11642 DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
11643 pll->name, pll->refcount, pll->on);
11646 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
11650 if (encoder->get_hw_state(encoder, &pipe)) {
11651 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
11652 encoder->base.crtc = &crtc->base;
11653 encoder->get_config(encoder, &crtc->config);
11655 encoder->base.crtc = NULL;
11658 encoder->connectors_active = false;
11659 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
11660 encoder->base.base.id,
11661 drm_get_encoder_name(&encoder->base),
11662 encoder->base.crtc ? "enabled" : "disabled",
11666 list_for_each_entry(connector, &dev->mode_config.connector_list,
11668 if (connector->get_hw_state(connector)) {
11669 connector->base.dpms = DRM_MODE_DPMS_ON;
11670 connector->encoder->connectors_active = true;
11671 connector->base.encoder = &connector->encoder->base;
11673 connector->base.dpms = DRM_MODE_DPMS_OFF;
11674 connector->base.encoder = NULL;
11676 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
11677 connector->base.base.id,
11678 drm_get_connector_name(&connector->base),
11679 connector->base.encoder ? "enabled" : "disabled");
11683 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
11684 * and i915 state tracking structures. */
11685 void intel_modeset_setup_hw_state(struct drm_device *dev,
11686 bool force_restore)
11688 struct drm_i915_private *dev_priv = dev->dev_private;
11690 struct intel_crtc *crtc;
11691 struct intel_encoder *encoder;
11694 intel_modeset_readout_hw_state(dev);
11697 * Now that we have the config, copy it to each CRTC struct
11698 * Note that this could go away if we move to using crtc_config
11699 * checking everywhere.
11701 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
11703 if (crtc->active && i915.fastboot) {
11704 intel_mode_from_pipe_config(&crtc->base.mode, &crtc->config);
11705 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
11706 crtc->base.base.id);
11707 drm_mode_debug_printmodeline(&crtc->base.mode);
11711 /* HW state is read out, now we need to sanitize this mess. */
11712 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
11714 intel_sanitize_encoder(encoder);
11717 for_each_pipe(pipe) {
11718 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
11719 intel_sanitize_crtc(crtc);
11720 intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]");
11723 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
11724 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
11726 if (!pll->on || pll->active)
11729 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name);
11731 pll->disable(dev_priv, pll);
11735 if (HAS_PCH_SPLIT(dev))
11736 ilk_wm_get_hw_state(dev);
11738 if (force_restore) {
11739 i915_redisable_vga(dev);
11742 * We need to use raw interfaces for restoring state to avoid
11743 * checking (bogus) intermediate states.
11745 for_each_pipe(pipe) {
11746 struct drm_crtc *crtc =
11747 dev_priv->pipe_to_crtc_mapping[pipe];
11749 __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
11750 crtc->primary->fb);
11753 intel_modeset_update_staged_output_state(dev);
11756 intel_modeset_check_state(dev);
11759 void intel_modeset_gem_init(struct drm_device *dev)
11761 struct drm_crtc *c;
11762 struct intel_framebuffer *fb;
11764 mutex_lock(&dev->struct_mutex);
11765 intel_init_gt_powersave(dev);
11766 mutex_unlock(&dev->struct_mutex);
11768 intel_modeset_init_hw(dev);
11770 intel_setup_overlay(dev);
11773 * Make sure any fbs we allocated at startup are properly
11774 * pinned & fenced. When we do the allocation it's too early
11777 mutex_lock(&dev->struct_mutex);
11778 list_for_each_entry(c, &dev->mode_config.crtc_list, head) {
11779 if (!c->primary->fb)
11782 fb = to_intel_framebuffer(c->primary->fb);
11783 if (intel_pin_and_fence_fb_obj(dev, fb->obj, NULL)) {
11784 DRM_ERROR("failed to pin boot fb on pipe %d\n",
11785 to_intel_crtc(c)->pipe);
11786 drm_framebuffer_unreference(c->primary->fb);
11787 c->primary->fb = NULL;
11790 mutex_unlock(&dev->struct_mutex);
11793 void intel_connector_unregister(struct intel_connector *intel_connector)
11795 struct drm_connector *connector = &intel_connector->base;
11797 intel_panel_destroy_backlight(connector);
11798 drm_sysfs_connector_remove(connector);
11801 void intel_modeset_cleanup(struct drm_device *dev)
11803 struct drm_i915_private *dev_priv = dev->dev_private;
11804 struct drm_crtc *crtc;
11805 struct drm_connector *connector;
11808 * Interrupts and polling as the first thing to avoid creating havoc.
11809 * Too much stuff here (turning of rps, connectors, ...) would
11810 * experience fancy races otherwise.
11812 drm_irq_uninstall(dev);
11813 cancel_work_sync(&dev_priv->hotplug_work);
11815 * Due to the hpd irq storm handling the hotplug work can re-arm the
11816 * poll handlers. Hence disable polling after hpd handling is shut down.
11818 drm_kms_helper_poll_fini(dev);
11820 mutex_lock(&dev->struct_mutex);
11822 intel_unregister_dsm_handler();
11824 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
11825 /* Skip inactive CRTCs */
11826 if (!crtc->primary->fb)
11829 intel_increase_pllclock(crtc);
11832 intel_disable_fbc(dev);
11834 intel_disable_gt_powersave(dev);
11836 ironlake_teardown_rc6(dev);
11838 mutex_unlock(&dev->struct_mutex);
11840 /* flush any delayed tasks or pending work */
11841 flush_scheduled_work();
11843 /* destroy the backlight and sysfs files before encoders/connectors */
11844 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
11845 struct intel_connector *intel_connector;
11847 intel_connector = to_intel_connector(connector);
11848 intel_connector->unregister(intel_connector);
11851 drm_mode_config_cleanup(dev);
11853 intel_cleanup_overlay(dev);
11855 mutex_lock(&dev->struct_mutex);
11856 intel_cleanup_gt_powersave(dev);
11857 mutex_unlock(&dev->struct_mutex);
11861 * Return which encoder is currently attached for connector.
11863 struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
11865 return &intel_attached_encoder(connector)->base;
11868 void intel_connector_attach_encoder(struct intel_connector *connector,
11869 struct intel_encoder *encoder)
11871 connector->encoder = encoder;
11872 drm_mode_connector_attach_encoder(&connector->base,
11877 * set vga decode state - true == enable VGA decode
11879 int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
11881 struct drm_i915_private *dev_priv = dev->dev_private;
11882 unsigned reg = INTEL_INFO(dev)->gen >= 6 ? SNB_GMCH_CTRL : INTEL_GMCH_CTRL;
11885 if (pci_read_config_word(dev_priv->bridge_dev, reg, &gmch_ctrl)) {
11886 DRM_ERROR("failed to read control word\n");
11890 if (!!(gmch_ctrl & INTEL_GMCH_VGA_DISABLE) == !state)
11894 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
11896 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
11898 if (pci_write_config_word(dev_priv->bridge_dev, reg, gmch_ctrl)) {
11899 DRM_ERROR("failed to write control word\n");
11906 struct intel_display_error_state {
11908 u32 power_well_driver;
11910 int num_transcoders;
11912 struct intel_cursor_error_state {
11917 } cursor[I915_MAX_PIPES];
11919 struct intel_pipe_error_state {
11920 bool power_domain_on;
11922 } pipe[I915_MAX_PIPES];
11924 struct intel_plane_error_state {
11932 } plane[I915_MAX_PIPES];
11934 struct intel_transcoder_error_state {
11935 bool power_domain_on;
11936 enum transcoder cpu_transcoder;
11949 struct intel_display_error_state *
11950 intel_display_capture_error_state(struct drm_device *dev)
11952 struct drm_i915_private *dev_priv = dev->dev_private;
11953 struct intel_display_error_state *error;
11954 int transcoders[] = {
11962 if (INTEL_INFO(dev)->num_pipes == 0)
11965 error = kzalloc(sizeof(*error), GFP_ATOMIC);
11969 if (IS_HASWELL(dev) || IS_BROADWELL(dev))
11970 error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
11973 error->pipe[i].power_domain_on =
11974 intel_display_power_enabled_sw(dev_priv,
11975 POWER_DOMAIN_PIPE(i));
11976 if (!error->pipe[i].power_domain_on)
11979 if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
11980 error->cursor[i].control = I915_READ(CURCNTR(i));
11981 error->cursor[i].position = I915_READ(CURPOS(i));
11982 error->cursor[i].base = I915_READ(CURBASE(i));
11984 error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
11985 error->cursor[i].position = I915_READ(CURPOS_IVB(i));
11986 error->cursor[i].base = I915_READ(CURBASE_IVB(i));
11989 error->plane[i].control = I915_READ(DSPCNTR(i));
11990 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
11991 if (INTEL_INFO(dev)->gen <= 3) {
11992 error->plane[i].size = I915_READ(DSPSIZE(i));
11993 error->plane[i].pos = I915_READ(DSPPOS(i));
11995 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
11996 error->plane[i].addr = I915_READ(DSPADDR(i));
11997 if (INTEL_INFO(dev)->gen >= 4) {
11998 error->plane[i].surface = I915_READ(DSPSURF(i));
11999 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
12002 error->pipe[i].source = I915_READ(PIPESRC(i));
12005 error->num_transcoders = INTEL_INFO(dev)->num_pipes;
12006 if (HAS_DDI(dev_priv->dev))
12007 error->num_transcoders++; /* Account for eDP. */
12009 for (i = 0; i < error->num_transcoders; i++) {
12010 enum transcoder cpu_transcoder = transcoders[i];
12012 error->transcoder[i].power_domain_on =
12013 intel_display_power_enabled_sw(dev_priv,
12014 POWER_DOMAIN_TRANSCODER(cpu_transcoder));
12015 if (!error->transcoder[i].power_domain_on)
12018 error->transcoder[i].cpu_transcoder = cpu_transcoder;
12020 error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder));
12021 error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
12022 error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder));
12023 error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder));
12024 error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
12025 error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder));
12026 error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder));
12032 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
12035 intel_display_print_error_state(struct drm_i915_error_state_buf *m,
12036 struct drm_device *dev,
12037 struct intel_display_error_state *error)
12044 err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
12045 if (IS_HASWELL(dev) || IS_BROADWELL(dev))
12046 err_printf(m, "PWR_WELL_CTL2: %08x\n",
12047 error->power_well_driver);
12049 err_printf(m, "Pipe [%d]:\n", i);
12050 err_printf(m, " Power: %s\n",
12051 error->pipe[i].power_domain_on ? "on" : "off");
12052 err_printf(m, " SRC: %08x\n", error->pipe[i].source);
12054 err_printf(m, "Plane [%d]:\n", i);
12055 err_printf(m, " CNTR: %08x\n", error->plane[i].control);
12056 err_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
12057 if (INTEL_INFO(dev)->gen <= 3) {
12058 err_printf(m, " SIZE: %08x\n", error->plane[i].size);
12059 err_printf(m, " POS: %08x\n", error->plane[i].pos);
12061 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
12062 err_printf(m, " ADDR: %08x\n", error->plane[i].addr);
12063 if (INTEL_INFO(dev)->gen >= 4) {
12064 err_printf(m, " SURF: %08x\n", error->plane[i].surface);
12065 err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
12068 err_printf(m, "Cursor [%d]:\n", i);
12069 err_printf(m, " CNTR: %08x\n", error->cursor[i].control);
12070 err_printf(m, " POS: %08x\n", error->cursor[i].position);
12071 err_printf(m, " BASE: %08x\n", error->cursor[i].base);
12074 for (i = 0; i < error->num_transcoders; i++) {
12075 err_printf(m, "CPU transcoder: %c\n",
12076 transcoder_name(error->transcoder[i].cpu_transcoder));
12077 err_printf(m, " Power: %s\n",
12078 error->transcoder[i].power_domain_on ? "on" : "off");
12079 err_printf(m, " CONF: %08x\n", error->transcoder[i].conf);
12080 err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal);
12081 err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank);
12082 err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync);
12083 err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal);
12084 err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank);
12085 err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync);