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 "intel_frontbuffer.h"
38 #include <drm/i915_drm.h>
40 #include "i915_gem_clflush.h"
41 #include "intel_dsi.h"
42 #include "i915_trace.h"
43 #include <drm/drm_atomic.h>
44 #include <drm/drm_atomic_helper.h>
45 #include <drm/drm_dp_helper.h>
46 #include <drm/drm_crtc_helper.h>
47 #include <drm/drm_plane_helper.h>
48 #include <drm/drm_rect.h>
49 #include <linux/dma_remapping.h>
50 #include <linux/reservation.h>
52 static bool is_mmio_work(struct intel_flip_work *work)
54 return work->mmio_work.func;
57 /* Primary plane formats for gen <= 3 */
58 static const uint32_t i8xx_primary_formats[] = {
65 /* Primary plane formats for gen >= 4 */
66 static const uint32_t i965_primary_formats[] = {
71 DRM_FORMAT_XRGB2101010,
72 DRM_FORMAT_XBGR2101010,
75 static const uint32_t skl_primary_formats[] = {
82 DRM_FORMAT_XRGB2101010,
83 DRM_FORMAT_XBGR2101010,
91 static const uint32_t intel_cursor_formats[] = {
95 static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
96 struct intel_crtc_state *pipe_config);
97 static void ironlake_pch_clock_get(struct intel_crtc *crtc,
98 struct intel_crtc_state *pipe_config);
100 static int intel_framebuffer_init(struct intel_framebuffer *ifb,
101 struct drm_i915_gem_object *obj,
102 struct drm_mode_fb_cmd2 *mode_cmd);
103 static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc);
104 static void intel_set_pipe_timings(struct intel_crtc *intel_crtc);
105 static void intel_set_pipe_src_size(struct intel_crtc *intel_crtc);
106 static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
107 struct intel_link_m_n *m_n,
108 struct intel_link_m_n *m2_n2);
109 static void ironlake_set_pipeconf(struct drm_crtc *crtc);
110 static void haswell_set_pipeconf(struct drm_crtc *crtc);
111 static void haswell_set_pipemisc(struct drm_crtc *crtc);
112 static void vlv_prepare_pll(struct intel_crtc *crtc,
113 const struct intel_crtc_state *pipe_config);
114 static void chv_prepare_pll(struct intel_crtc *crtc,
115 const struct intel_crtc_state *pipe_config);
116 static void intel_begin_crtc_commit(struct drm_crtc *, struct drm_crtc_state *);
117 static void intel_finish_crtc_commit(struct drm_crtc *, struct drm_crtc_state *);
118 static void intel_crtc_init_scalers(struct intel_crtc *crtc,
119 struct intel_crtc_state *crtc_state);
120 static void skylake_pfit_enable(struct intel_crtc *crtc);
121 static void ironlake_pfit_disable(struct intel_crtc *crtc, bool force);
122 static void ironlake_pfit_enable(struct intel_crtc *crtc);
123 static void intel_modeset_setup_hw_state(struct drm_device *dev);
124 static void intel_pre_disable_primary_noatomic(struct drm_crtc *crtc);
129 } dot, vco, n, m, m1, m2, p, p1;
133 int p2_slow, p2_fast;
137 /* returns HPLL frequency in kHz */
138 int vlv_get_hpll_vco(struct drm_i915_private *dev_priv)
140 int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 };
142 /* Obtain SKU information */
143 mutex_lock(&dev_priv->sb_lock);
144 hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) &
145 CCK_FUSE_HPLL_FREQ_MASK;
146 mutex_unlock(&dev_priv->sb_lock);
148 return vco_freq[hpll_freq] * 1000;
151 int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
152 const char *name, u32 reg, int ref_freq)
157 mutex_lock(&dev_priv->sb_lock);
158 val = vlv_cck_read(dev_priv, reg);
159 mutex_unlock(&dev_priv->sb_lock);
161 divider = val & CCK_FREQUENCY_VALUES;
163 WARN((val & CCK_FREQUENCY_STATUS) !=
164 (divider << CCK_FREQUENCY_STATUS_SHIFT),
165 "%s change in progress\n", name);
167 return DIV_ROUND_CLOSEST(ref_freq << 1, divider + 1);
170 int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv,
171 const char *name, u32 reg)
173 if (dev_priv->hpll_freq == 0)
174 dev_priv->hpll_freq = vlv_get_hpll_vco(dev_priv);
176 return vlv_get_cck_clock(dev_priv, name, reg,
177 dev_priv->hpll_freq);
180 static void intel_update_czclk(struct drm_i915_private *dev_priv)
182 if (!(IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)))
185 dev_priv->czclk_freq = vlv_get_cck_clock_hpll(dev_priv, "czclk",
186 CCK_CZ_CLOCK_CONTROL);
188 DRM_DEBUG_DRIVER("CZ clock rate: %d kHz\n", dev_priv->czclk_freq);
191 static inline u32 /* units of 100MHz */
192 intel_fdi_link_freq(struct drm_i915_private *dev_priv,
193 const struct intel_crtc_state *pipe_config)
195 if (HAS_DDI(dev_priv))
196 return pipe_config->port_clock; /* SPLL */
197 else if (IS_GEN5(dev_priv))
198 return ((I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2) * 10000;
203 static const struct intel_limit intel_limits_i8xx_dac = {
204 .dot = { .min = 25000, .max = 350000 },
205 .vco = { .min = 908000, .max = 1512000 },
206 .n = { .min = 2, .max = 16 },
207 .m = { .min = 96, .max = 140 },
208 .m1 = { .min = 18, .max = 26 },
209 .m2 = { .min = 6, .max = 16 },
210 .p = { .min = 4, .max = 128 },
211 .p1 = { .min = 2, .max = 33 },
212 .p2 = { .dot_limit = 165000,
213 .p2_slow = 4, .p2_fast = 2 },
216 static const struct intel_limit intel_limits_i8xx_dvo = {
217 .dot = { .min = 25000, .max = 350000 },
218 .vco = { .min = 908000, .max = 1512000 },
219 .n = { .min = 2, .max = 16 },
220 .m = { .min = 96, .max = 140 },
221 .m1 = { .min = 18, .max = 26 },
222 .m2 = { .min = 6, .max = 16 },
223 .p = { .min = 4, .max = 128 },
224 .p1 = { .min = 2, .max = 33 },
225 .p2 = { .dot_limit = 165000,
226 .p2_slow = 4, .p2_fast = 4 },
229 static const struct intel_limit intel_limits_i8xx_lvds = {
230 .dot = { .min = 25000, .max = 350000 },
231 .vco = { .min = 908000, .max = 1512000 },
232 .n = { .min = 2, .max = 16 },
233 .m = { .min = 96, .max = 140 },
234 .m1 = { .min = 18, .max = 26 },
235 .m2 = { .min = 6, .max = 16 },
236 .p = { .min = 4, .max = 128 },
237 .p1 = { .min = 1, .max = 6 },
238 .p2 = { .dot_limit = 165000,
239 .p2_slow = 14, .p2_fast = 7 },
242 static const struct intel_limit intel_limits_i9xx_sdvo = {
243 .dot = { .min = 20000, .max = 400000 },
244 .vco = { .min = 1400000, .max = 2800000 },
245 .n = { .min = 1, .max = 6 },
246 .m = { .min = 70, .max = 120 },
247 .m1 = { .min = 8, .max = 18 },
248 .m2 = { .min = 3, .max = 7 },
249 .p = { .min = 5, .max = 80 },
250 .p1 = { .min = 1, .max = 8 },
251 .p2 = { .dot_limit = 200000,
252 .p2_slow = 10, .p2_fast = 5 },
255 static const struct intel_limit intel_limits_i9xx_lvds = {
256 .dot = { .min = 20000, .max = 400000 },
257 .vco = { .min = 1400000, .max = 2800000 },
258 .n = { .min = 1, .max = 6 },
259 .m = { .min = 70, .max = 120 },
260 .m1 = { .min = 8, .max = 18 },
261 .m2 = { .min = 3, .max = 7 },
262 .p = { .min = 7, .max = 98 },
263 .p1 = { .min = 1, .max = 8 },
264 .p2 = { .dot_limit = 112000,
265 .p2_slow = 14, .p2_fast = 7 },
269 static const struct intel_limit intel_limits_g4x_sdvo = {
270 .dot = { .min = 25000, .max = 270000 },
271 .vco = { .min = 1750000, .max = 3500000},
272 .n = { .min = 1, .max = 4 },
273 .m = { .min = 104, .max = 138 },
274 .m1 = { .min = 17, .max = 23 },
275 .m2 = { .min = 5, .max = 11 },
276 .p = { .min = 10, .max = 30 },
277 .p1 = { .min = 1, .max = 3},
278 .p2 = { .dot_limit = 270000,
284 static const struct intel_limit intel_limits_g4x_hdmi = {
285 .dot = { .min = 22000, .max = 400000 },
286 .vco = { .min = 1750000, .max = 3500000},
287 .n = { .min = 1, .max = 4 },
288 .m = { .min = 104, .max = 138 },
289 .m1 = { .min = 16, .max = 23 },
290 .m2 = { .min = 5, .max = 11 },
291 .p = { .min = 5, .max = 80 },
292 .p1 = { .min = 1, .max = 8},
293 .p2 = { .dot_limit = 165000,
294 .p2_slow = 10, .p2_fast = 5 },
297 static const struct intel_limit intel_limits_g4x_single_channel_lvds = {
298 .dot = { .min = 20000, .max = 115000 },
299 .vco = { .min = 1750000, .max = 3500000 },
300 .n = { .min = 1, .max = 3 },
301 .m = { .min = 104, .max = 138 },
302 .m1 = { .min = 17, .max = 23 },
303 .m2 = { .min = 5, .max = 11 },
304 .p = { .min = 28, .max = 112 },
305 .p1 = { .min = 2, .max = 8 },
306 .p2 = { .dot_limit = 0,
307 .p2_slow = 14, .p2_fast = 14
311 static const struct intel_limit intel_limits_g4x_dual_channel_lvds = {
312 .dot = { .min = 80000, .max = 224000 },
313 .vco = { .min = 1750000, .max = 3500000 },
314 .n = { .min = 1, .max = 3 },
315 .m = { .min = 104, .max = 138 },
316 .m1 = { .min = 17, .max = 23 },
317 .m2 = { .min = 5, .max = 11 },
318 .p = { .min = 14, .max = 42 },
319 .p1 = { .min = 2, .max = 6 },
320 .p2 = { .dot_limit = 0,
321 .p2_slow = 7, .p2_fast = 7
325 static const struct intel_limit intel_limits_pineview_sdvo = {
326 .dot = { .min = 20000, .max = 400000},
327 .vco = { .min = 1700000, .max = 3500000 },
328 /* Pineview's Ncounter is a ring counter */
329 .n = { .min = 3, .max = 6 },
330 .m = { .min = 2, .max = 256 },
331 /* Pineview only has one combined m divider, which we treat as m2. */
332 .m1 = { .min = 0, .max = 0 },
333 .m2 = { .min = 0, .max = 254 },
334 .p = { .min = 5, .max = 80 },
335 .p1 = { .min = 1, .max = 8 },
336 .p2 = { .dot_limit = 200000,
337 .p2_slow = 10, .p2_fast = 5 },
340 static const struct intel_limit intel_limits_pineview_lvds = {
341 .dot = { .min = 20000, .max = 400000 },
342 .vco = { .min = 1700000, .max = 3500000 },
343 .n = { .min = 3, .max = 6 },
344 .m = { .min = 2, .max = 256 },
345 .m1 = { .min = 0, .max = 0 },
346 .m2 = { .min = 0, .max = 254 },
347 .p = { .min = 7, .max = 112 },
348 .p1 = { .min = 1, .max = 8 },
349 .p2 = { .dot_limit = 112000,
350 .p2_slow = 14, .p2_fast = 14 },
353 /* Ironlake / Sandybridge
355 * We calculate clock using (register_value + 2) for N/M1/M2, so here
356 * the range value for them is (actual_value - 2).
358 static const struct intel_limit intel_limits_ironlake_dac = {
359 .dot = { .min = 25000, .max = 350000 },
360 .vco = { .min = 1760000, .max = 3510000 },
361 .n = { .min = 1, .max = 5 },
362 .m = { .min = 79, .max = 127 },
363 .m1 = { .min = 12, .max = 22 },
364 .m2 = { .min = 5, .max = 9 },
365 .p = { .min = 5, .max = 80 },
366 .p1 = { .min = 1, .max = 8 },
367 .p2 = { .dot_limit = 225000,
368 .p2_slow = 10, .p2_fast = 5 },
371 static const struct intel_limit intel_limits_ironlake_single_lvds = {
372 .dot = { .min = 25000, .max = 350000 },
373 .vco = { .min = 1760000, .max = 3510000 },
374 .n = { .min = 1, .max = 3 },
375 .m = { .min = 79, .max = 118 },
376 .m1 = { .min = 12, .max = 22 },
377 .m2 = { .min = 5, .max = 9 },
378 .p = { .min = 28, .max = 112 },
379 .p1 = { .min = 2, .max = 8 },
380 .p2 = { .dot_limit = 225000,
381 .p2_slow = 14, .p2_fast = 14 },
384 static const struct intel_limit intel_limits_ironlake_dual_lvds = {
385 .dot = { .min = 25000, .max = 350000 },
386 .vco = { .min = 1760000, .max = 3510000 },
387 .n = { .min = 1, .max = 3 },
388 .m = { .min = 79, .max = 127 },
389 .m1 = { .min = 12, .max = 22 },
390 .m2 = { .min = 5, .max = 9 },
391 .p = { .min = 14, .max = 56 },
392 .p1 = { .min = 2, .max = 8 },
393 .p2 = { .dot_limit = 225000,
394 .p2_slow = 7, .p2_fast = 7 },
397 /* LVDS 100mhz refclk limits. */
398 static const struct intel_limit intel_limits_ironlake_single_lvds_100m = {
399 .dot = { .min = 25000, .max = 350000 },
400 .vco = { .min = 1760000, .max = 3510000 },
401 .n = { .min = 1, .max = 2 },
402 .m = { .min = 79, .max = 126 },
403 .m1 = { .min = 12, .max = 22 },
404 .m2 = { .min = 5, .max = 9 },
405 .p = { .min = 28, .max = 112 },
406 .p1 = { .min = 2, .max = 8 },
407 .p2 = { .dot_limit = 225000,
408 .p2_slow = 14, .p2_fast = 14 },
411 static const struct intel_limit intel_limits_ironlake_dual_lvds_100m = {
412 .dot = { .min = 25000, .max = 350000 },
413 .vco = { .min = 1760000, .max = 3510000 },
414 .n = { .min = 1, .max = 3 },
415 .m = { .min = 79, .max = 126 },
416 .m1 = { .min = 12, .max = 22 },
417 .m2 = { .min = 5, .max = 9 },
418 .p = { .min = 14, .max = 42 },
419 .p1 = { .min = 2, .max = 6 },
420 .p2 = { .dot_limit = 225000,
421 .p2_slow = 7, .p2_fast = 7 },
424 static const struct intel_limit intel_limits_vlv = {
426 * These are the data rate limits (measured in fast clocks)
427 * since those are the strictest limits we have. The fast
428 * clock and actual rate limits are more relaxed, so checking
429 * them would make no difference.
431 .dot = { .min = 25000 * 5, .max = 270000 * 5 },
432 .vco = { .min = 4000000, .max = 6000000 },
433 .n = { .min = 1, .max = 7 },
434 .m1 = { .min = 2, .max = 3 },
435 .m2 = { .min = 11, .max = 156 },
436 .p1 = { .min = 2, .max = 3 },
437 .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */
440 static const struct intel_limit intel_limits_chv = {
442 * These are the data rate limits (measured in fast clocks)
443 * since those are the strictest limits we have. The fast
444 * clock and actual rate limits are more relaxed, so checking
445 * them would make no difference.
447 .dot = { .min = 25000 * 5, .max = 540000 * 5},
448 .vco = { .min = 4800000, .max = 6480000 },
449 .n = { .min = 1, .max = 1 },
450 .m1 = { .min = 2, .max = 2 },
451 .m2 = { .min = 24 << 22, .max = 175 << 22 },
452 .p1 = { .min = 2, .max = 4 },
453 .p2 = { .p2_slow = 1, .p2_fast = 14 },
456 static const struct intel_limit intel_limits_bxt = {
457 /* FIXME: find real dot limits */
458 .dot = { .min = 0, .max = INT_MAX },
459 .vco = { .min = 4800000, .max = 6700000 },
460 .n = { .min = 1, .max = 1 },
461 .m1 = { .min = 2, .max = 2 },
462 /* FIXME: find real m2 limits */
463 .m2 = { .min = 2 << 22, .max = 255 << 22 },
464 .p1 = { .min = 2, .max = 4 },
465 .p2 = { .p2_slow = 1, .p2_fast = 20 },
469 needs_modeset(struct drm_crtc_state *state)
471 return drm_atomic_crtc_needs_modeset(state);
475 * Platform specific helpers to calculate the port PLL loopback- (clock.m),
476 * and post-divider (clock.p) values, pre- (clock.vco) and post-divided fast
477 * (clock.dot) clock rates. This fast dot clock is fed to the port's IO logic.
478 * The helpers' return value is the rate of the clock that is fed to the
479 * display engine's pipe which can be the above fast dot clock rate or a
480 * divided-down version of it.
482 /* m1 is reserved as 0 in Pineview, n is a ring counter */
483 static int pnv_calc_dpll_params(int refclk, struct dpll *clock)
485 clock->m = clock->m2 + 2;
486 clock->p = clock->p1 * clock->p2;
487 if (WARN_ON(clock->n == 0 || clock->p == 0))
489 clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
490 clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
495 static uint32_t i9xx_dpll_compute_m(struct dpll *dpll)
497 return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
500 static int i9xx_calc_dpll_params(int refclk, struct dpll *clock)
502 clock->m = i9xx_dpll_compute_m(clock);
503 clock->p = clock->p1 * clock->p2;
504 if (WARN_ON(clock->n + 2 == 0 || clock->p == 0))
506 clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2);
507 clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
512 static int vlv_calc_dpll_params(int refclk, struct dpll *clock)
514 clock->m = clock->m1 * clock->m2;
515 clock->p = clock->p1 * clock->p2;
516 if (WARN_ON(clock->n == 0 || clock->p == 0))
518 clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
519 clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
521 return clock->dot / 5;
524 int chv_calc_dpll_params(int refclk, struct dpll *clock)
526 clock->m = clock->m1 * clock->m2;
527 clock->p = clock->p1 * clock->p2;
528 if (WARN_ON(clock->n == 0 || clock->p == 0))
530 clock->vco = DIV_ROUND_CLOSEST_ULL((uint64_t)refclk * clock->m,
532 clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
534 return clock->dot / 5;
537 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
539 * Returns whether the given set of divisors are valid for a given refclk with
540 * the given connectors.
543 static bool intel_PLL_is_valid(struct drm_i915_private *dev_priv,
544 const struct intel_limit *limit,
545 const struct dpll *clock)
547 if (clock->n < limit->n.min || limit->n.max < clock->n)
548 INTELPllInvalid("n out of range\n");
549 if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
550 INTELPllInvalid("p1 out of range\n");
551 if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
552 INTELPllInvalid("m2 out of range\n");
553 if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
554 INTELPllInvalid("m1 out of range\n");
556 if (!IS_PINEVIEW(dev_priv) && !IS_VALLEYVIEW(dev_priv) &&
557 !IS_CHERRYVIEW(dev_priv) && !IS_GEN9_LP(dev_priv))
558 if (clock->m1 <= clock->m2)
559 INTELPllInvalid("m1 <= m2\n");
561 if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv) &&
562 !IS_GEN9_LP(dev_priv)) {
563 if (clock->p < limit->p.min || limit->p.max < clock->p)
564 INTELPllInvalid("p out of range\n");
565 if (clock->m < limit->m.min || limit->m.max < clock->m)
566 INTELPllInvalid("m out of range\n");
569 if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
570 INTELPllInvalid("vco out of range\n");
571 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
572 * connector, etc., rather than just a single range.
574 if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
575 INTELPllInvalid("dot out of range\n");
581 i9xx_select_p2_div(const struct intel_limit *limit,
582 const struct intel_crtc_state *crtc_state,
585 struct drm_device *dev = crtc_state->base.crtc->dev;
587 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
589 * For LVDS just rely on its current settings for dual-channel.
590 * We haven't figured out how to reliably set up different
591 * single/dual channel state, if we even can.
593 if (intel_is_dual_link_lvds(dev))
594 return limit->p2.p2_fast;
596 return limit->p2.p2_slow;
598 if (target < limit->p2.dot_limit)
599 return limit->p2.p2_slow;
601 return limit->p2.p2_fast;
606 * Returns a set of divisors for the desired target clock with the given
607 * refclk, or FALSE. The returned values represent the clock equation:
608 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
610 * Target and reference clocks are specified in kHz.
612 * If match_clock is provided, then best_clock P divider must match the P
613 * divider from @match_clock used for LVDS downclocking.
616 i9xx_find_best_dpll(const struct intel_limit *limit,
617 struct intel_crtc_state *crtc_state,
618 int target, int refclk, struct dpll *match_clock,
619 struct dpll *best_clock)
621 struct drm_device *dev = crtc_state->base.crtc->dev;
625 memset(best_clock, 0, sizeof(*best_clock));
627 clock.p2 = i9xx_select_p2_div(limit, crtc_state, target);
629 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
631 for (clock.m2 = limit->m2.min;
632 clock.m2 <= limit->m2.max; clock.m2++) {
633 if (clock.m2 >= clock.m1)
635 for (clock.n = limit->n.min;
636 clock.n <= limit->n.max; clock.n++) {
637 for (clock.p1 = limit->p1.min;
638 clock.p1 <= limit->p1.max; clock.p1++) {
641 i9xx_calc_dpll_params(refclk, &clock);
642 if (!intel_PLL_is_valid(to_i915(dev),
647 clock.p != match_clock->p)
650 this_err = abs(clock.dot - target);
651 if (this_err < err) {
660 return (err != target);
664 * Returns a set of divisors for the desired target clock with the given
665 * refclk, or FALSE. The returned values represent the clock equation:
666 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
668 * Target and reference clocks are specified in kHz.
670 * If match_clock is provided, then best_clock P divider must match the P
671 * divider from @match_clock used for LVDS downclocking.
674 pnv_find_best_dpll(const struct intel_limit *limit,
675 struct intel_crtc_state *crtc_state,
676 int target, int refclk, struct dpll *match_clock,
677 struct dpll *best_clock)
679 struct drm_device *dev = crtc_state->base.crtc->dev;
683 memset(best_clock, 0, sizeof(*best_clock));
685 clock.p2 = i9xx_select_p2_div(limit, crtc_state, target);
687 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
689 for (clock.m2 = limit->m2.min;
690 clock.m2 <= limit->m2.max; clock.m2++) {
691 for (clock.n = limit->n.min;
692 clock.n <= limit->n.max; clock.n++) {
693 for (clock.p1 = limit->p1.min;
694 clock.p1 <= limit->p1.max; clock.p1++) {
697 pnv_calc_dpll_params(refclk, &clock);
698 if (!intel_PLL_is_valid(to_i915(dev),
703 clock.p != match_clock->p)
706 this_err = abs(clock.dot - target);
707 if (this_err < err) {
716 return (err != target);
720 * Returns a set of divisors for the desired target clock with the given
721 * refclk, or FALSE. The returned values represent the clock equation:
722 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
724 * Target and reference clocks are specified in kHz.
726 * If match_clock is provided, then best_clock P divider must match the P
727 * divider from @match_clock used for LVDS downclocking.
730 g4x_find_best_dpll(const struct intel_limit *limit,
731 struct intel_crtc_state *crtc_state,
732 int target, int refclk, struct dpll *match_clock,
733 struct dpll *best_clock)
735 struct drm_device *dev = crtc_state->base.crtc->dev;
739 /* approximately equals target * 0.00585 */
740 int err_most = (target >> 8) + (target >> 9);
742 memset(best_clock, 0, sizeof(*best_clock));
744 clock.p2 = i9xx_select_p2_div(limit, crtc_state, target);
746 max_n = limit->n.max;
747 /* based on hardware requirement, prefer smaller n to precision */
748 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
749 /* based on hardware requirement, prefere larger m1,m2 */
750 for (clock.m1 = limit->m1.max;
751 clock.m1 >= limit->m1.min; clock.m1--) {
752 for (clock.m2 = limit->m2.max;
753 clock.m2 >= limit->m2.min; clock.m2--) {
754 for (clock.p1 = limit->p1.max;
755 clock.p1 >= limit->p1.min; clock.p1--) {
758 i9xx_calc_dpll_params(refclk, &clock);
759 if (!intel_PLL_is_valid(to_i915(dev),
764 this_err = abs(clock.dot - target);
765 if (this_err < err_most) {
779 * Check if the calculated PLL configuration is more optimal compared to the
780 * best configuration and error found so far. Return the calculated error.
782 static bool vlv_PLL_is_optimal(struct drm_device *dev, int target_freq,
783 const struct dpll *calculated_clock,
784 const struct dpll *best_clock,
785 unsigned int best_error_ppm,
786 unsigned int *error_ppm)
789 * For CHV ignore the error and consider only the P value.
790 * Prefer a bigger P value based on HW requirements.
792 if (IS_CHERRYVIEW(to_i915(dev))) {
795 return calculated_clock->p > best_clock->p;
798 if (WARN_ON_ONCE(!target_freq))
801 *error_ppm = div_u64(1000000ULL *
802 abs(target_freq - calculated_clock->dot),
805 * Prefer a better P value over a better (smaller) error if the error
806 * is small. Ensure this preference for future configurations too by
807 * setting the error to 0.
809 if (*error_ppm < 100 && calculated_clock->p > best_clock->p) {
815 return *error_ppm + 10 < best_error_ppm;
819 * Returns a set of divisors for the desired target clock with the given
820 * refclk, or FALSE. The returned values represent the clock equation:
821 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
824 vlv_find_best_dpll(const struct intel_limit *limit,
825 struct intel_crtc_state *crtc_state,
826 int target, int refclk, struct dpll *match_clock,
827 struct dpll *best_clock)
829 struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
830 struct drm_device *dev = crtc->base.dev;
832 unsigned int bestppm = 1000000;
833 /* min update 19.2 MHz */
834 int max_n = min(limit->n.max, refclk / 19200);
837 target *= 5; /* fast clock */
839 memset(best_clock, 0, sizeof(*best_clock));
841 /* based on hardware requirement, prefer smaller n to precision */
842 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
843 for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
844 for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow;
845 clock.p2 -= clock.p2 > 10 ? 2 : 1) {
846 clock.p = clock.p1 * clock.p2;
847 /* based on hardware requirement, prefer bigger m1,m2 values */
848 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) {
851 clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n,
854 vlv_calc_dpll_params(refclk, &clock);
856 if (!intel_PLL_is_valid(to_i915(dev),
861 if (!vlv_PLL_is_optimal(dev, target,
879 * Returns a set of divisors for the desired target clock with the given
880 * refclk, or FALSE. The returned values represent the clock equation:
881 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
884 chv_find_best_dpll(const struct intel_limit *limit,
885 struct intel_crtc_state *crtc_state,
886 int target, int refclk, struct dpll *match_clock,
887 struct dpll *best_clock)
889 struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
890 struct drm_device *dev = crtc->base.dev;
891 unsigned int best_error_ppm;
896 memset(best_clock, 0, sizeof(*best_clock));
897 best_error_ppm = 1000000;
900 * Based on hardware doc, the n always set to 1, and m1 always
901 * set to 2. If requires to support 200Mhz refclk, we need to
902 * revisit this because n may not 1 anymore.
904 clock.n = 1, clock.m1 = 2;
905 target *= 5; /* fast clock */
907 for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
908 for (clock.p2 = limit->p2.p2_fast;
909 clock.p2 >= limit->p2.p2_slow;
910 clock.p2 -= clock.p2 > 10 ? 2 : 1) {
911 unsigned int error_ppm;
913 clock.p = clock.p1 * clock.p2;
915 m2 = DIV_ROUND_CLOSEST_ULL(((uint64_t)target * clock.p *
916 clock.n) << 22, refclk * clock.m1);
918 if (m2 > INT_MAX/clock.m1)
923 chv_calc_dpll_params(refclk, &clock);
925 if (!intel_PLL_is_valid(to_i915(dev), limit, &clock))
928 if (!vlv_PLL_is_optimal(dev, target, &clock, best_clock,
929 best_error_ppm, &error_ppm))
933 best_error_ppm = error_ppm;
941 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
942 struct dpll *best_clock)
945 const struct intel_limit *limit = &intel_limits_bxt;
947 return chv_find_best_dpll(limit, crtc_state,
948 target_clock, refclk, NULL, best_clock);
951 bool intel_crtc_active(struct intel_crtc *crtc)
953 /* Be paranoid as we can arrive here with only partial
954 * state retrieved from the hardware during setup.
956 * We can ditch the adjusted_mode.crtc_clock check as soon
957 * as Haswell has gained clock readout/fastboot support.
959 * We can ditch the crtc->primary->fb check as soon as we can
960 * properly reconstruct framebuffers.
962 * FIXME: The intel_crtc->active here should be switched to
963 * crtc->state->active once we have proper CRTC states wired up
966 return crtc->active && crtc->base.primary->state->fb &&
967 crtc->config->base.adjusted_mode.crtc_clock;
970 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
973 struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
975 return crtc->config->cpu_transcoder;
978 static bool pipe_dsl_stopped(struct drm_i915_private *dev_priv, enum pipe pipe)
980 i915_reg_t reg = PIPEDSL(pipe);
984 if (IS_GEN2(dev_priv))
985 line_mask = DSL_LINEMASK_GEN2;
987 line_mask = DSL_LINEMASK_GEN3;
989 line1 = I915_READ(reg) & line_mask;
991 line2 = I915_READ(reg) & line_mask;
993 return line1 == line2;
997 * intel_wait_for_pipe_off - wait for pipe to turn off
998 * @crtc: crtc whose pipe to wait for
1000 * After disabling a pipe, we can't wait for vblank in the usual way,
1001 * spinning on the vblank interrupt status bit, since we won't actually
1002 * see an interrupt when the pipe is disabled.
1004 * On Gen4 and above:
1005 * wait for the pipe register state bit to turn off
1008 * wait for the display line value to settle (it usually
1009 * ends up stopping at the start of the next frame).
1012 static void intel_wait_for_pipe_off(struct intel_crtc *crtc)
1014 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1015 enum transcoder cpu_transcoder = crtc->config->cpu_transcoder;
1016 enum pipe pipe = crtc->pipe;
1018 if (INTEL_GEN(dev_priv) >= 4) {
1019 i915_reg_t reg = PIPECONF(cpu_transcoder);
1021 /* Wait for the Pipe State to go off */
1022 if (intel_wait_for_register(dev_priv,
1023 reg, I965_PIPECONF_ACTIVE, 0,
1025 WARN(1, "pipe_off wait timed out\n");
1027 /* Wait for the display line to settle */
1028 if (wait_for(pipe_dsl_stopped(dev_priv, pipe), 100))
1029 WARN(1, "pipe_off wait timed out\n");
1033 /* Only for pre-ILK configs */
1034 void assert_pll(struct drm_i915_private *dev_priv,
1035 enum pipe pipe, bool state)
1040 val = I915_READ(DPLL(pipe));
1041 cur_state = !!(val & DPLL_VCO_ENABLE);
1042 I915_STATE_WARN(cur_state != state,
1043 "PLL state assertion failure (expected %s, current %s)\n",
1044 onoff(state), onoff(cur_state));
1047 /* XXX: the dsi pll is shared between MIPI DSI ports */
1048 void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state)
1053 mutex_lock(&dev_priv->sb_lock);
1054 val = vlv_cck_read(dev_priv, CCK_REG_DSI_PLL_CONTROL);
1055 mutex_unlock(&dev_priv->sb_lock);
1057 cur_state = val & DSI_PLL_VCO_EN;
1058 I915_STATE_WARN(cur_state != state,
1059 "DSI PLL state assertion failure (expected %s, current %s)\n",
1060 onoff(state), onoff(cur_state));
1063 static void assert_fdi_tx(struct drm_i915_private *dev_priv,
1064 enum pipe pipe, bool state)
1067 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1070 if (HAS_DDI(dev_priv)) {
1071 /* DDI does not have a specific FDI_TX register */
1072 u32 val = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
1073 cur_state = !!(val & TRANS_DDI_FUNC_ENABLE);
1075 u32 val = I915_READ(FDI_TX_CTL(pipe));
1076 cur_state = !!(val & FDI_TX_ENABLE);
1078 I915_STATE_WARN(cur_state != state,
1079 "FDI TX state assertion failure (expected %s, current %s)\n",
1080 onoff(state), onoff(cur_state));
1082 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1083 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1085 static void assert_fdi_rx(struct drm_i915_private *dev_priv,
1086 enum pipe pipe, bool state)
1091 val = I915_READ(FDI_RX_CTL(pipe));
1092 cur_state = !!(val & FDI_RX_ENABLE);
1093 I915_STATE_WARN(cur_state != state,
1094 "FDI RX state assertion failure (expected %s, current %s)\n",
1095 onoff(state), onoff(cur_state));
1097 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1098 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1100 static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
1105 /* ILK FDI PLL is always enabled */
1106 if (IS_GEN5(dev_priv))
1109 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1110 if (HAS_DDI(dev_priv))
1113 val = I915_READ(FDI_TX_CTL(pipe));
1114 I915_STATE_WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n");
1117 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1118 enum pipe pipe, bool state)
1123 val = I915_READ(FDI_RX_CTL(pipe));
1124 cur_state = !!(val & FDI_RX_PLL_ENABLE);
1125 I915_STATE_WARN(cur_state != state,
1126 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1127 onoff(state), onoff(cur_state));
1130 void assert_panel_unlocked(struct drm_i915_private *dev_priv, enum pipe pipe)
1134 enum pipe panel_pipe = PIPE_A;
1137 if (WARN_ON(HAS_DDI(dev_priv)))
1140 if (HAS_PCH_SPLIT(dev_priv)) {
1143 pp_reg = PP_CONTROL(0);
1144 port_sel = I915_READ(PP_ON_DELAYS(0)) & PANEL_PORT_SELECT_MASK;
1146 if (port_sel == PANEL_PORT_SELECT_LVDS &&
1147 I915_READ(PCH_LVDS) & LVDS_PIPEB_SELECT)
1148 panel_pipe = PIPE_B;
1149 /* XXX: else fix for eDP */
1150 } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
1151 /* presumably write lock depends on pipe, not port select */
1152 pp_reg = PP_CONTROL(pipe);
1155 pp_reg = PP_CONTROL(0);
1156 if (I915_READ(LVDS) & LVDS_PIPEB_SELECT)
1157 panel_pipe = PIPE_B;
1160 val = I915_READ(pp_reg);
1161 if (!(val & PANEL_POWER_ON) ||
1162 ((val & PANEL_UNLOCK_MASK) == PANEL_UNLOCK_REGS))
1165 I915_STATE_WARN(panel_pipe == pipe && locked,
1166 "panel assertion failure, pipe %c regs locked\n",
1170 static void assert_cursor(struct drm_i915_private *dev_priv,
1171 enum pipe pipe, bool state)
1175 if (IS_I845G(dev_priv) || IS_I865G(dev_priv))
1176 cur_state = I915_READ(CURCNTR(PIPE_A)) & CURSOR_ENABLE;
1178 cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
1180 I915_STATE_WARN(cur_state != state,
1181 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1182 pipe_name(pipe), onoff(state), onoff(cur_state));
1184 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1185 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1187 void assert_pipe(struct drm_i915_private *dev_priv,
1188 enum pipe pipe, bool state)
1191 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1193 enum intel_display_power_domain power_domain;
1195 /* if we need the pipe quirk it must be always on */
1196 if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) ||
1197 (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))
1200 power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
1201 if (intel_display_power_get_if_enabled(dev_priv, power_domain)) {
1202 u32 val = I915_READ(PIPECONF(cpu_transcoder));
1203 cur_state = !!(val & PIPECONF_ENABLE);
1205 intel_display_power_put(dev_priv, power_domain);
1210 I915_STATE_WARN(cur_state != state,
1211 "pipe %c assertion failure (expected %s, current %s)\n",
1212 pipe_name(pipe), onoff(state), onoff(cur_state));
1215 static void assert_plane(struct drm_i915_private *dev_priv,
1216 enum plane plane, bool state)
1221 val = I915_READ(DSPCNTR(plane));
1222 cur_state = !!(val & DISPLAY_PLANE_ENABLE);
1223 I915_STATE_WARN(cur_state != state,
1224 "plane %c assertion failure (expected %s, current %s)\n",
1225 plane_name(plane), onoff(state), onoff(cur_state));
1228 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1229 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1231 static void assert_planes_disabled(struct drm_i915_private *dev_priv,
1236 /* Primary planes are fixed to pipes on gen4+ */
1237 if (INTEL_GEN(dev_priv) >= 4) {
1238 u32 val = I915_READ(DSPCNTR(pipe));
1239 I915_STATE_WARN(val & DISPLAY_PLANE_ENABLE,
1240 "plane %c assertion failure, should be disabled but not\n",
1245 /* Need to check both planes against the pipe */
1246 for_each_pipe(dev_priv, i) {
1247 u32 val = I915_READ(DSPCNTR(i));
1248 enum pipe cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >>
1249 DISPPLANE_SEL_PIPE_SHIFT;
1250 I915_STATE_WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe,
1251 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1252 plane_name(i), pipe_name(pipe));
1256 static void assert_sprites_disabled(struct drm_i915_private *dev_priv,
1261 if (INTEL_GEN(dev_priv) >= 9) {
1262 for_each_sprite(dev_priv, pipe, sprite) {
1263 u32 val = I915_READ(PLANE_CTL(pipe, sprite));
1264 I915_STATE_WARN(val & PLANE_CTL_ENABLE,
1265 "plane %d assertion failure, should be off on pipe %c but is still active\n",
1266 sprite, pipe_name(pipe));
1268 } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
1269 for_each_sprite(dev_priv, pipe, sprite) {
1270 u32 val = I915_READ(SPCNTR(pipe, PLANE_SPRITE0 + sprite));
1271 I915_STATE_WARN(val & SP_ENABLE,
1272 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1273 sprite_name(pipe, sprite), pipe_name(pipe));
1275 } else if (INTEL_GEN(dev_priv) >= 7) {
1276 u32 val = I915_READ(SPRCTL(pipe));
1277 I915_STATE_WARN(val & SPRITE_ENABLE,
1278 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1279 plane_name(pipe), pipe_name(pipe));
1280 } else if (INTEL_GEN(dev_priv) >= 5) {
1281 u32 val = I915_READ(DVSCNTR(pipe));
1282 I915_STATE_WARN(val & DVS_ENABLE,
1283 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1284 plane_name(pipe), pipe_name(pipe));
1288 static void assert_vblank_disabled(struct drm_crtc *crtc)
1290 if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc) == 0))
1291 drm_crtc_vblank_put(crtc);
1294 void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1300 val = I915_READ(PCH_TRANSCONF(pipe));
1301 enabled = !!(val & TRANS_ENABLE);
1302 I915_STATE_WARN(enabled,
1303 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1307 static bool dp_pipe_enabled(struct drm_i915_private *dev_priv,
1308 enum pipe pipe, u32 port_sel, u32 val)
1310 if ((val & DP_PORT_EN) == 0)
1313 if (HAS_PCH_CPT(dev_priv)) {
1314 u32 trans_dp_ctl = I915_READ(TRANS_DP_CTL(pipe));
1315 if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel)
1317 } else if (IS_CHERRYVIEW(dev_priv)) {
1318 if ((val & DP_PIPE_MASK_CHV) != DP_PIPE_SELECT_CHV(pipe))
1321 if ((val & DP_PIPE_MASK) != (pipe << 30))
1327 static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
1328 enum pipe pipe, u32 val)
1330 if ((val & SDVO_ENABLE) == 0)
1333 if (HAS_PCH_CPT(dev_priv)) {
1334 if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe))
1336 } else if (IS_CHERRYVIEW(dev_priv)) {
1337 if ((val & SDVO_PIPE_SEL_MASK_CHV) != SDVO_PIPE_SEL_CHV(pipe))
1340 if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe))
1346 static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
1347 enum pipe pipe, u32 val)
1349 if ((val & LVDS_PORT_EN) == 0)
1352 if (HAS_PCH_CPT(dev_priv)) {
1353 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1356 if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
1362 static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
1363 enum pipe pipe, u32 val)
1365 if ((val & ADPA_DAC_ENABLE) == 0)
1367 if (HAS_PCH_CPT(dev_priv)) {
1368 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1371 if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
1377 static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
1378 enum pipe pipe, i915_reg_t reg,
1381 u32 val = I915_READ(reg);
1382 I915_STATE_WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val),
1383 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1384 i915_mmio_reg_offset(reg), pipe_name(pipe));
1386 I915_STATE_WARN(HAS_PCH_IBX(dev_priv) && (val & DP_PORT_EN) == 0
1387 && (val & DP_PIPEB_SELECT),
1388 "IBX PCH dp port still using transcoder B\n");
1391 static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
1392 enum pipe pipe, i915_reg_t reg)
1394 u32 val = I915_READ(reg);
1395 I915_STATE_WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
1396 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1397 i915_mmio_reg_offset(reg), pipe_name(pipe));
1399 I915_STATE_WARN(HAS_PCH_IBX(dev_priv) && (val & SDVO_ENABLE) == 0
1400 && (val & SDVO_PIPE_B_SELECT),
1401 "IBX PCH hdmi port still using transcoder B\n");
1404 static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
1409 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B);
1410 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
1411 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
1413 val = I915_READ(PCH_ADPA);
1414 I915_STATE_WARN(adpa_pipe_enabled(dev_priv, pipe, val),
1415 "PCH VGA enabled on transcoder %c, should be disabled\n",
1418 val = I915_READ(PCH_LVDS);
1419 I915_STATE_WARN(lvds_pipe_enabled(dev_priv, pipe, val),
1420 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1423 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB);
1424 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC);
1425 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID);
1428 static void _vlv_enable_pll(struct intel_crtc *crtc,
1429 const struct intel_crtc_state *pipe_config)
1431 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1432 enum pipe pipe = crtc->pipe;
1434 I915_WRITE(DPLL(pipe), pipe_config->dpll_hw_state.dpll);
1435 POSTING_READ(DPLL(pipe));
1438 if (intel_wait_for_register(dev_priv,
1443 DRM_ERROR("DPLL %d failed to lock\n", pipe);
1446 static void vlv_enable_pll(struct intel_crtc *crtc,
1447 const struct intel_crtc_state *pipe_config)
1449 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1450 enum pipe pipe = crtc->pipe;
1452 assert_pipe_disabled(dev_priv, pipe);
1454 /* PLL is protected by panel, make sure we can write it */
1455 assert_panel_unlocked(dev_priv, pipe);
1457 if (pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE)
1458 _vlv_enable_pll(crtc, pipe_config);
1460 I915_WRITE(DPLL_MD(pipe), pipe_config->dpll_hw_state.dpll_md);
1461 POSTING_READ(DPLL_MD(pipe));
1465 static void _chv_enable_pll(struct intel_crtc *crtc,
1466 const struct intel_crtc_state *pipe_config)
1468 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1469 enum pipe pipe = crtc->pipe;
1470 enum dpio_channel port = vlv_pipe_to_channel(pipe);
1473 mutex_lock(&dev_priv->sb_lock);
1475 /* Enable back the 10bit clock to display controller */
1476 tmp = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port));
1477 tmp |= DPIO_DCLKP_EN;
1478 vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), tmp);
1480 mutex_unlock(&dev_priv->sb_lock);
1483 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
1488 I915_WRITE(DPLL(pipe), pipe_config->dpll_hw_state.dpll);
1490 /* Check PLL is locked */
1491 if (intel_wait_for_register(dev_priv,
1492 DPLL(pipe), DPLL_LOCK_VLV, DPLL_LOCK_VLV,
1494 DRM_ERROR("PLL %d failed to lock\n", pipe);
1497 static void chv_enable_pll(struct intel_crtc *crtc,
1498 const struct intel_crtc_state *pipe_config)
1500 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1501 enum pipe pipe = crtc->pipe;
1503 assert_pipe_disabled(dev_priv, pipe);
1505 /* PLL is protected by panel, make sure we can write it */
1506 assert_panel_unlocked(dev_priv, pipe);
1508 if (pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE)
1509 _chv_enable_pll(crtc, pipe_config);
1511 if (pipe != PIPE_A) {
1513 * WaPixelRepeatModeFixForC0:chv
1515 * DPLLCMD is AWOL. Use chicken bits to propagate
1516 * the value from DPLLBMD to either pipe B or C.
1518 I915_WRITE(CBR4_VLV, pipe == PIPE_B ? CBR_DPLLBMD_PIPE_B : CBR_DPLLBMD_PIPE_C);
1519 I915_WRITE(DPLL_MD(PIPE_B), pipe_config->dpll_hw_state.dpll_md);
1520 I915_WRITE(CBR4_VLV, 0);
1521 dev_priv->chv_dpll_md[pipe] = pipe_config->dpll_hw_state.dpll_md;
1524 * DPLLB VGA mode also seems to cause problems.
1525 * We should always have it disabled.
1527 WARN_ON((I915_READ(DPLL(PIPE_B)) & DPLL_VGA_MODE_DIS) == 0);
1529 I915_WRITE(DPLL_MD(pipe), pipe_config->dpll_hw_state.dpll_md);
1530 POSTING_READ(DPLL_MD(pipe));
1534 static int intel_num_dvo_pipes(struct drm_i915_private *dev_priv)
1536 struct intel_crtc *crtc;
1539 for_each_intel_crtc(&dev_priv->drm, crtc) {
1540 count += crtc->base.state->active &&
1541 intel_crtc_has_type(crtc->config, INTEL_OUTPUT_DVO);
1547 static void i9xx_enable_pll(struct intel_crtc *crtc)
1549 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1550 i915_reg_t reg = DPLL(crtc->pipe);
1551 u32 dpll = crtc->config->dpll_hw_state.dpll;
1553 assert_pipe_disabled(dev_priv, crtc->pipe);
1555 /* PLL is protected by panel, make sure we can write it */
1556 if (IS_MOBILE(dev_priv) && !IS_I830(dev_priv))
1557 assert_panel_unlocked(dev_priv, crtc->pipe);
1559 /* Enable DVO 2x clock on both PLLs if necessary */
1560 if (IS_I830(dev_priv) && intel_num_dvo_pipes(dev_priv) > 0) {
1562 * It appears to be important that we don't enable this
1563 * for the current pipe before otherwise configuring the
1564 * PLL. No idea how this should be handled if multiple
1565 * DVO outputs are enabled simultaneosly.
1567 dpll |= DPLL_DVO_2X_MODE;
1568 I915_WRITE(DPLL(!crtc->pipe),
1569 I915_READ(DPLL(!crtc->pipe)) | DPLL_DVO_2X_MODE);
1573 * Apparently we need to have VGA mode enabled prior to changing
1574 * the P1/P2 dividers. Otherwise the DPLL will keep using the old
1575 * dividers, even though the register value does change.
1579 I915_WRITE(reg, dpll);
1581 /* Wait for the clocks to stabilize. */
1585 if (INTEL_GEN(dev_priv) >= 4) {
1586 I915_WRITE(DPLL_MD(crtc->pipe),
1587 crtc->config->dpll_hw_state.dpll_md);
1589 /* The pixel multiplier can only be updated once the
1590 * DPLL is enabled and the clocks are stable.
1592 * So write it again.
1594 I915_WRITE(reg, dpll);
1597 /* We do this three times for luck */
1598 I915_WRITE(reg, dpll);
1600 udelay(150); /* wait for warmup */
1601 I915_WRITE(reg, dpll);
1603 udelay(150); /* wait for warmup */
1604 I915_WRITE(reg, dpll);
1606 udelay(150); /* wait for warmup */
1610 * i9xx_disable_pll - disable a PLL
1611 * @dev_priv: i915 private structure
1612 * @pipe: pipe PLL to disable
1614 * Disable the PLL for @pipe, making sure the pipe is off first.
1616 * Note! This is for pre-ILK only.
1618 static void i9xx_disable_pll(struct intel_crtc *crtc)
1620 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1621 enum pipe pipe = crtc->pipe;
1623 /* Disable DVO 2x clock on both PLLs if necessary */
1624 if (IS_I830(dev_priv) &&
1625 intel_crtc_has_type(crtc->config, INTEL_OUTPUT_DVO) &&
1626 !intel_num_dvo_pipes(dev_priv)) {
1627 I915_WRITE(DPLL(PIPE_B),
1628 I915_READ(DPLL(PIPE_B)) & ~DPLL_DVO_2X_MODE);
1629 I915_WRITE(DPLL(PIPE_A),
1630 I915_READ(DPLL(PIPE_A)) & ~DPLL_DVO_2X_MODE);
1633 /* Don't disable pipe or pipe PLLs if needed */
1634 if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) ||
1635 (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))
1638 /* Make sure the pipe isn't still relying on us */
1639 assert_pipe_disabled(dev_priv, pipe);
1641 I915_WRITE(DPLL(pipe), DPLL_VGA_MODE_DIS);
1642 POSTING_READ(DPLL(pipe));
1645 static void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1649 /* Make sure the pipe isn't still relying on us */
1650 assert_pipe_disabled(dev_priv, pipe);
1652 val = DPLL_INTEGRATED_REF_CLK_VLV |
1653 DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
1655 val |= DPLL_INTEGRATED_CRI_CLK_VLV;
1657 I915_WRITE(DPLL(pipe), val);
1658 POSTING_READ(DPLL(pipe));
1661 static void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1663 enum dpio_channel port = vlv_pipe_to_channel(pipe);
1666 /* Make sure the pipe isn't still relying on us */
1667 assert_pipe_disabled(dev_priv, pipe);
1669 val = DPLL_SSC_REF_CLK_CHV |
1670 DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
1672 val |= DPLL_INTEGRATED_CRI_CLK_VLV;
1674 I915_WRITE(DPLL(pipe), val);
1675 POSTING_READ(DPLL(pipe));
1677 mutex_lock(&dev_priv->sb_lock);
1679 /* Disable 10bit clock to display controller */
1680 val = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port));
1681 val &= ~DPIO_DCLKP_EN;
1682 vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), val);
1684 mutex_unlock(&dev_priv->sb_lock);
1687 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1688 struct intel_digital_port *dport,
1689 unsigned int expected_mask)
1692 i915_reg_t dpll_reg;
1694 switch (dport->port) {
1696 port_mask = DPLL_PORTB_READY_MASK;
1700 port_mask = DPLL_PORTC_READY_MASK;
1702 expected_mask <<= 4;
1705 port_mask = DPLL_PORTD_READY_MASK;
1706 dpll_reg = DPIO_PHY_STATUS;
1712 if (intel_wait_for_register(dev_priv,
1713 dpll_reg, port_mask, expected_mask,
1715 WARN(1, "timed out waiting for port %c ready: got 0x%x, expected 0x%x\n",
1716 port_name(dport->port), I915_READ(dpll_reg) & port_mask, expected_mask);
1719 static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1722 struct intel_crtc *intel_crtc = intel_get_crtc_for_pipe(dev_priv,
1725 uint32_t val, pipeconf_val;
1727 /* Make sure PCH DPLL is enabled */
1728 assert_shared_dpll_enabled(dev_priv, intel_crtc->config->shared_dpll);
1730 /* FDI must be feeding us bits for PCH ports */
1731 assert_fdi_tx_enabled(dev_priv, pipe);
1732 assert_fdi_rx_enabled(dev_priv, pipe);
1734 if (HAS_PCH_CPT(dev_priv)) {
1735 /* Workaround: Set the timing override bit before enabling the
1736 * pch transcoder. */
1737 reg = TRANS_CHICKEN2(pipe);
1738 val = I915_READ(reg);
1739 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1740 I915_WRITE(reg, val);
1743 reg = PCH_TRANSCONF(pipe);
1744 val = I915_READ(reg);
1745 pipeconf_val = I915_READ(PIPECONF(pipe));
1747 if (HAS_PCH_IBX(dev_priv)) {
1749 * Make the BPC in transcoder be consistent with
1750 * that in pipeconf reg. For HDMI we must use 8bpc
1751 * here for both 8bpc and 12bpc.
1753 val &= ~PIPECONF_BPC_MASK;
1754 if (intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_HDMI))
1755 val |= PIPECONF_8BPC;
1757 val |= pipeconf_val & PIPECONF_BPC_MASK;
1760 val &= ~TRANS_INTERLACE_MASK;
1761 if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
1762 if (HAS_PCH_IBX(dev_priv) &&
1763 intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_SDVO))
1764 val |= TRANS_LEGACY_INTERLACED_ILK;
1766 val |= TRANS_INTERLACED;
1768 val |= TRANS_PROGRESSIVE;
1770 I915_WRITE(reg, val | TRANS_ENABLE);
1771 if (intel_wait_for_register(dev_priv,
1772 reg, TRANS_STATE_ENABLE, TRANS_STATE_ENABLE,
1774 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe));
1777 static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1778 enum transcoder cpu_transcoder)
1780 u32 val, pipeconf_val;
1782 /* FDI must be feeding us bits for PCH ports */
1783 assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
1784 assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
1786 /* Workaround: set timing override bit. */
1787 val = I915_READ(TRANS_CHICKEN2(PIPE_A));
1788 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1789 I915_WRITE(TRANS_CHICKEN2(PIPE_A), val);
1792 pipeconf_val = I915_READ(PIPECONF(cpu_transcoder));
1794 if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) ==
1795 PIPECONF_INTERLACED_ILK)
1796 val |= TRANS_INTERLACED;
1798 val |= TRANS_PROGRESSIVE;
1800 I915_WRITE(LPT_TRANSCONF, val);
1801 if (intel_wait_for_register(dev_priv,
1806 DRM_ERROR("Failed to enable PCH transcoder\n");
1809 static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
1815 /* FDI relies on the transcoder */
1816 assert_fdi_tx_disabled(dev_priv, pipe);
1817 assert_fdi_rx_disabled(dev_priv, pipe);
1819 /* Ports must be off as well */
1820 assert_pch_ports_disabled(dev_priv, pipe);
1822 reg = PCH_TRANSCONF(pipe);
1823 val = I915_READ(reg);
1824 val &= ~TRANS_ENABLE;
1825 I915_WRITE(reg, val);
1826 /* wait for PCH transcoder off, transcoder state */
1827 if (intel_wait_for_register(dev_priv,
1828 reg, TRANS_STATE_ENABLE, 0,
1830 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe));
1832 if (HAS_PCH_CPT(dev_priv)) {
1833 /* Workaround: Clear the timing override chicken bit again. */
1834 reg = TRANS_CHICKEN2(pipe);
1835 val = I915_READ(reg);
1836 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1837 I915_WRITE(reg, val);
1841 void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
1845 val = I915_READ(LPT_TRANSCONF);
1846 val &= ~TRANS_ENABLE;
1847 I915_WRITE(LPT_TRANSCONF, val);
1848 /* wait for PCH transcoder off, transcoder state */
1849 if (intel_wait_for_register(dev_priv,
1850 LPT_TRANSCONF, TRANS_STATE_ENABLE, 0,
1852 DRM_ERROR("Failed to disable PCH transcoder\n");
1854 /* Workaround: clear timing override bit. */
1855 val = I915_READ(TRANS_CHICKEN2(PIPE_A));
1856 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1857 I915_WRITE(TRANS_CHICKEN2(PIPE_A), val);
1860 enum transcoder intel_crtc_pch_transcoder(struct intel_crtc *crtc)
1862 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1864 WARN_ON(!crtc->config->has_pch_encoder);
1866 if (HAS_PCH_LPT(dev_priv))
1867 return TRANSCODER_A;
1869 return (enum transcoder) crtc->pipe;
1873 * intel_enable_pipe - enable a pipe, asserting requirements
1874 * @crtc: crtc responsible for the pipe
1876 * Enable @crtc's pipe, making sure that various hardware specific requirements
1877 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1879 static void intel_enable_pipe(struct intel_crtc *crtc)
1881 struct drm_device *dev = crtc->base.dev;
1882 struct drm_i915_private *dev_priv = to_i915(dev);
1883 enum pipe pipe = crtc->pipe;
1884 enum transcoder cpu_transcoder = crtc->config->cpu_transcoder;
1888 DRM_DEBUG_KMS("enabling pipe %c\n", pipe_name(pipe));
1890 assert_planes_disabled(dev_priv, pipe);
1891 assert_cursor_disabled(dev_priv, pipe);
1892 assert_sprites_disabled(dev_priv, pipe);
1895 * A pipe without a PLL won't actually be able to drive bits from
1896 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1899 if (HAS_GMCH_DISPLAY(dev_priv)) {
1900 if (intel_crtc_has_type(crtc->config, INTEL_OUTPUT_DSI))
1901 assert_dsi_pll_enabled(dev_priv);
1903 assert_pll_enabled(dev_priv, pipe);
1905 if (crtc->config->has_pch_encoder) {
1906 /* if driving the PCH, we need FDI enabled */
1907 assert_fdi_rx_pll_enabled(dev_priv,
1908 (enum pipe) intel_crtc_pch_transcoder(crtc));
1909 assert_fdi_tx_pll_enabled(dev_priv,
1910 (enum pipe) cpu_transcoder);
1912 /* FIXME: assert CPU port conditions for SNB+ */
1915 reg = PIPECONF(cpu_transcoder);
1916 val = I915_READ(reg);
1917 if (val & PIPECONF_ENABLE) {
1918 WARN_ON(!((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) ||
1919 (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)));
1923 I915_WRITE(reg, val | PIPECONF_ENABLE);
1927 * Until the pipe starts DSL will read as 0, which would cause
1928 * an apparent vblank timestamp jump, which messes up also the
1929 * frame count when it's derived from the timestamps. So let's
1930 * wait for the pipe to start properly before we call
1931 * drm_crtc_vblank_on()
1933 if (dev->max_vblank_count == 0 &&
1934 wait_for(intel_get_crtc_scanline(crtc) != crtc->scanline_offset, 50))
1935 DRM_ERROR("pipe %c didn't start\n", pipe_name(pipe));
1939 * intel_disable_pipe - disable a pipe, asserting requirements
1940 * @crtc: crtc whose pipes is to be disabled
1942 * Disable the pipe of @crtc, making sure that various hardware
1943 * specific requirements are met, if applicable, e.g. plane
1944 * disabled, panel fitter off, etc.
1946 * Will wait until the pipe has shut down before returning.
1948 static void intel_disable_pipe(struct intel_crtc *crtc)
1950 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
1951 enum transcoder cpu_transcoder = crtc->config->cpu_transcoder;
1952 enum pipe pipe = crtc->pipe;
1956 DRM_DEBUG_KMS("disabling pipe %c\n", pipe_name(pipe));
1959 * Make sure planes won't keep trying to pump pixels to us,
1960 * or we might hang the display.
1962 assert_planes_disabled(dev_priv, pipe);
1963 assert_cursor_disabled(dev_priv, pipe);
1964 assert_sprites_disabled(dev_priv, pipe);
1966 reg = PIPECONF(cpu_transcoder);
1967 val = I915_READ(reg);
1968 if ((val & PIPECONF_ENABLE) == 0)
1972 * Double wide has implications for planes
1973 * so best keep it disabled when not needed.
1975 if (crtc->config->double_wide)
1976 val &= ~PIPECONF_DOUBLE_WIDE;
1978 /* Don't disable pipe or pipe PLLs if needed */
1979 if (!(pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) &&
1980 !(pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))
1981 val &= ~PIPECONF_ENABLE;
1983 I915_WRITE(reg, val);
1984 if ((val & PIPECONF_ENABLE) == 0)
1985 intel_wait_for_pipe_off(crtc);
1988 static unsigned int intel_tile_size(const struct drm_i915_private *dev_priv)
1990 return IS_GEN2(dev_priv) ? 2048 : 4096;
1994 intel_tile_width_bytes(const struct drm_framebuffer *fb, int plane)
1996 struct drm_i915_private *dev_priv = to_i915(fb->dev);
1997 unsigned int cpp = fb->format->cpp[plane];
1999 switch (fb->modifier) {
2000 case DRM_FORMAT_MOD_LINEAR:
2002 case I915_FORMAT_MOD_X_TILED:
2003 if (IS_GEN2(dev_priv))
2007 case I915_FORMAT_MOD_Y_TILED:
2008 if (IS_GEN2(dev_priv) || HAS_128_BYTE_Y_TILING(dev_priv))
2012 case I915_FORMAT_MOD_Yf_TILED:
2028 MISSING_CASE(fb->modifier);
2034 intel_tile_height(const struct drm_framebuffer *fb, int plane)
2036 if (fb->modifier == DRM_FORMAT_MOD_LINEAR)
2039 return intel_tile_size(to_i915(fb->dev)) /
2040 intel_tile_width_bytes(fb, plane);
2043 /* Return the tile dimensions in pixel units */
2044 static void intel_tile_dims(const struct drm_framebuffer *fb, int plane,
2045 unsigned int *tile_width,
2046 unsigned int *tile_height)
2048 unsigned int tile_width_bytes = intel_tile_width_bytes(fb, plane);
2049 unsigned int cpp = fb->format->cpp[plane];
2051 *tile_width = tile_width_bytes / cpp;
2052 *tile_height = intel_tile_size(to_i915(fb->dev)) / tile_width_bytes;
2056 intel_fb_align_height(const struct drm_framebuffer *fb,
2057 int plane, unsigned int height)
2059 unsigned int tile_height = intel_tile_height(fb, plane);
2061 return ALIGN(height, tile_height);
2064 unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info)
2066 unsigned int size = 0;
2069 for (i = 0 ; i < ARRAY_SIZE(rot_info->plane); i++)
2070 size += rot_info->plane[i].width * rot_info->plane[i].height;
2076 intel_fill_fb_ggtt_view(struct i915_ggtt_view *view,
2077 const struct drm_framebuffer *fb,
2078 unsigned int rotation)
2080 view->type = I915_GGTT_VIEW_NORMAL;
2081 if (drm_rotation_90_or_270(rotation)) {
2082 view->type = I915_GGTT_VIEW_ROTATED;
2083 view->rotated = to_intel_framebuffer(fb)->rot_info;
2087 static unsigned int intel_linear_alignment(const struct drm_i915_private *dev_priv)
2089 if (INTEL_INFO(dev_priv)->gen >= 9)
2091 else if (IS_I965G(dev_priv) || IS_I965GM(dev_priv) ||
2092 IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
2094 else if (INTEL_INFO(dev_priv)->gen >= 4)
2100 static unsigned int intel_surf_alignment(const struct drm_framebuffer *fb,
2103 struct drm_i915_private *dev_priv = to_i915(fb->dev);
2105 /* AUX_DIST needs only 4K alignment */
2106 if (fb->format->format == DRM_FORMAT_NV12 && plane == 1)
2109 switch (fb->modifier) {
2110 case DRM_FORMAT_MOD_LINEAR:
2111 return intel_linear_alignment(dev_priv);
2112 case I915_FORMAT_MOD_X_TILED:
2113 if (INTEL_GEN(dev_priv) >= 9)
2116 case I915_FORMAT_MOD_Y_TILED:
2117 case I915_FORMAT_MOD_Yf_TILED:
2118 return 1 * 1024 * 1024;
2120 MISSING_CASE(fb->modifier);
2126 intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb, unsigned int rotation)
2128 struct drm_device *dev = fb->dev;
2129 struct drm_i915_private *dev_priv = to_i915(dev);
2130 struct drm_i915_gem_object *obj = intel_fb_obj(fb);
2131 struct i915_ggtt_view view;
2132 struct i915_vma *vma;
2135 WARN_ON(!mutex_is_locked(&dev->struct_mutex));
2137 alignment = intel_surf_alignment(fb, 0);
2139 intel_fill_fb_ggtt_view(&view, fb, rotation);
2141 /* Note that the w/a also requires 64 PTE of padding following the
2142 * bo. We currently fill all unused PTE with the shadow page and so
2143 * we should always have valid PTE following the scanout preventing
2146 if (intel_scanout_needs_vtd_wa(dev_priv) && alignment < 256 * 1024)
2147 alignment = 256 * 1024;
2150 * Global gtt pte registers are special registers which actually forward
2151 * writes to a chunk of system memory. Which means that there is no risk
2152 * that the register values disappear as soon as we call
2153 * intel_runtime_pm_put(), so it is correct to wrap only the
2154 * pin/unpin/fence and not more.
2156 intel_runtime_pm_get(dev_priv);
2158 vma = i915_gem_object_pin_to_display_plane(obj, alignment, &view);
2162 if (i915_vma_is_map_and_fenceable(vma)) {
2163 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2164 * fence, whereas 965+ only requires a fence if using
2165 * framebuffer compression. For simplicity, we always, when
2166 * possible, install a fence as the cost is not that onerous.
2168 * If we fail to fence the tiled scanout, then either the
2169 * modeset will reject the change (which is highly unlikely as
2170 * the affected systems, all but one, do not have unmappable
2171 * space) or we will not be able to enable full powersaving
2172 * techniques (also likely not to apply due to various limits
2173 * FBC and the like impose on the size of the buffer, which
2174 * presumably we violated anyway with this unmappable buffer).
2175 * Anyway, it is presumably better to stumble onwards with
2176 * something and try to run the system in a "less than optimal"
2177 * mode that matches the user configuration.
2179 if (i915_vma_get_fence(vma) == 0)
2180 i915_vma_pin_fence(vma);
2185 intel_runtime_pm_put(dev_priv);
2189 void intel_unpin_fb_vma(struct i915_vma *vma)
2191 lockdep_assert_held(&vma->vm->i915->drm.struct_mutex);
2193 i915_vma_unpin_fence(vma);
2194 i915_gem_object_unpin_from_display_plane(vma);
2198 static int intel_fb_pitch(const struct drm_framebuffer *fb, int plane,
2199 unsigned int rotation)
2201 if (drm_rotation_90_or_270(rotation))
2202 return to_intel_framebuffer(fb)->rotated[plane].pitch;
2204 return fb->pitches[plane];
2208 * Convert the x/y offsets into a linear offset.
2209 * Only valid with 0/180 degree rotation, which is fine since linear
2210 * offset is only used with linear buffers on pre-hsw and tiled buffers
2211 * with gen2/3, and 90/270 degree rotations isn't supported on any of them.
2213 u32 intel_fb_xy_to_linear(int x, int y,
2214 const struct intel_plane_state *state,
2217 const struct drm_framebuffer *fb = state->base.fb;
2218 unsigned int cpp = fb->format->cpp[plane];
2219 unsigned int pitch = fb->pitches[plane];
2221 return y * pitch + x * cpp;
2225 * Add the x/y offsets derived from fb->offsets[] to the user
2226 * specified plane src x/y offsets. The resulting x/y offsets
2227 * specify the start of scanout from the beginning of the gtt mapping.
2229 void intel_add_fb_offsets(int *x, int *y,
2230 const struct intel_plane_state *state,
2234 const struct intel_framebuffer *intel_fb = to_intel_framebuffer(state->base.fb);
2235 unsigned int rotation = state->base.rotation;
2237 if (drm_rotation_90_or_270(rotation)) {
2238 *x += intel_fb->rotated[plane].x;
2239 *y += intel_fb->rotated[plane].y;
2241 *x += intel_fb->normal[plane].x;
2242 *y += intel_fb->normal[plane].y;
2247 * Input tile dimensions and pitch must already be
2248 * rotated to match x and y, and in pixel units.
2250 static u32 _intel_adjust_tile_offset(int *x, int *y,
2251 unsigned int tile_width,
2252 unsigned int tile_height,
2253 unsigned int tile_size,
2254 unsigned int pitch_tiles,
2258 unsigned int pitch_pixels = pitch_tiles * tile_width;
2261 WARN_ON(old_offset & (tile_size - 1));
2262 WARN_ON(new_offset & (tile_size - 1));
2263 WARN_ON(new_offset > old_offset);
2265 tiles = (old_offset - new_offset) / tile_size;
2267 *y += tiles / pitch_tiles * tile_height;
2268 *x += tiles % pitch_tiles * tile_width;
2270 /* minimize x in case it got needlessly big */
2271 *y += *x / pitch_pixels * tile_height;
2278 * Adjust the tile offset by moving the difference into
2281 static u32 intel_adjust_tile_offset(int *x, int *y,
2282 const struct intel_plane_state *state, int plane,
2283 u32 old_offset, u32 new_offset)
2285 const struct drm_i915_private *dev_priv = to_i915(state->base.plane->dev);
2286 const struct drm_framebuffer *fb = state->base.fb;
2287 unsigned int cpp = fb->format->cpp[plane];
2288 unsigned int rotation = state->base.rotation;
2289 unsigned int pitch = intel_fb_pitch(fb, plane, rotation);
2291 WARN_ON(new_offset > old_offset);
2293 if (fb->modifier != DRM_FORMAT_MOD_LINEAR) {
2294 unsigned int tile_size, tile_width, tile_height;
2295 unsigned int pitch_tiles;
2297 tile_size = intel_tile_size(dev_priv);
2298 intel_tile_dims(fb, plane, &tile_width, &tile_height);
2300 if (drm_rotation_90_or_270(rotation)) {
2301 pitch_tiles = pitch / tile_height;
2302 swap(tile_width, tile_height);
2304 pitch_tiles = pitch / (tile_width * cpp);
2307 _intel_adjust_tile_offset(x, y, tile_width, tile_height,
2308 tile_size, pitch_tiles,
2309 old_offset, new_offset);
2311 old_offset += *y * pitch + *x * cpp;
2313 *y = (old_offset - new_offset) / pitch;
2314 *x = ((old_offset - new_offset) - *y * pitch) / cpp;
2321 * Computes the linear offset to the base tile and adjusts
2322 * x, y. bytes per pixel is assumed to be a power-of-two.
2324 * In the 90/270 rotated case, x and y are assumed
2325 * to be already rotated to match the rotated GTT view, and
2326 * pitch is the tile_height aligned framebuffer height.
2328 * This function is used when computing the derived information
2329 * under intel_framebuffer, so using any of that information
2330 * here is not allowed. Anything under drm_framebuffer can be
2331 * used. This is why the user has to pass in the pitch since it
2332 * is specified in the rotated orientation.
2334 static u32 _intel_compute_tile_offset(const struct drm_i915_private *dev_priv,
2336 const struct drm_framebuffer *fb, int plane,
2338 unsigned int rotation,
2341 uint64_t fb_modifier = fb->modifier;
2342 unsigned int cpp = fb->format->cpp[plane];
2343 u32 offset, offset_aligned;
2348 if (fb_modifier != DRM_FORMAT_MOD_LINEAR) {
2349 unsigned int tile_size, tile_width, tile_height;
2350 unsigned int tile_rows, tiles, pitch_tiles;
2352 tile_size = intel_tile_size(dev_priv);
2353 intel_tile_dims(fb, plane, &tile_width, &tile_height);
2355 if (drm_rotation_90_or_270(rotation)) {
2356 pitch_tiles = pitch / tile_height;
2357 swap(tile_width, tile_height);
2359 pitch_tiles = pitch / (tile_width * cpp);
2362 tile_rows = *y / tile_height;
2365 tiles = *x / tile_width;
2368 offset = (tile_rows * pitch_tiles + tiles) * tile_size;
2369 offset_aligned = offset & ~alignment;
2371 _intel_adjust_tile_offset(x, y, tile_width, tile_height,
2372 tile_size, pitch_tiles,
2373 offset, offset_aligned);
2375 offset = *y * pitch + *x * cpp;
2376 offset_aligned = offset & ~alignment;
2378 *y = (offset & alignment) / pitch;
2379 *x = ((offset & alignment) - *y * pitch) / cpp;
2382 return offset_aligned;
2385 u32 intel_compute_tile_offset(int *x, int *y,
2386 const struct intel_plane_state *state,
2389 const struct drm_i915_private *dev_priv = to_i915(state->base.plane->dev);
2390 const struct drm_framebuffer *fb = state->base.fb;
2391 unsigned int rotation = state->base.rotation;
2392 int pitch = intel_fb_pitch(fb, plane, rotation);
2393 u32 alignment = intel_surf_alignment(fb, plane);
2395 return _intel_compute_tile_offset(dev_priv, x, y, fb, plane, pitch,
2396 rotation, alignment);
2399 /* Convert the fb->offset[] linear offset into x/y offsets */
2400 static void intel_fb_offset_to_xy(int *x, int *y,
2401 const struct drm_framebuffer *fb, int plane)
2403 unsigned int cpp = fb->format->cpp[plane];
2404 unsigned int pitch = fb->pitches[plane];
2405 u32 linear_offset = fb->offsets[plane];
2407 *y = linear_offset / pitch;
2408 *x = linear_offset % pitch / cpp;
2411 static unsigned int intel_fb_modifier_to_tiling(uint64_t fb_modifier)
2413 switch (fb_modifier) {
2414 case I915_FORMAT_MOD_X_TILED:
2415 return I915_TILING_X;
2416 case I915_FORMAT_MOD_Y_TILED:
2417 return I915_TILING_Y;
2419 return I915_TILING_NONE;
2424 intel_fill_fb_info(struct drm_i915_private *dev_priv,
2425 struct drm_framebuffer *fb)
2427 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
2428 struct intel_rotation_info *rot_info = &intel_fb->rot_info;
2429 u32 gtt_offset_rotated = 0;
2430 unsigned int max_size = 0;
2431 int i, num_planes = fb->format->num_planes;
2432 unsigned int tile_size = intel_tile_size(dev_priv);
2434 for (i = 0; i < num_planes; i++) {
2435 unsigned int width, height;
2436 unsigned int cpp, size;
2440 cpp = fb->format->cpp[i];
2441 width = drm_framebuffer_plane_width(fb->width, fb, i);
2442 height = drm_framebuffer_plane_height(fb->height, fb, i);
2444 intel_fb_offset_to_xy(&x, &y, fb, i);
2447 * The fence (if used) is aligned to the start of the object
2448 * so having the framebuffer wrap around across the edge of the
2449 * fenced region doesn't really work. We have no API to configure
2450 * the fence start offset within the object (nor could we probably
2451 * on gen2/3). So it's just easier if we just require that the
2452 * fb layout agrees with the fence layout. We already check that the
2453 * fb stride matches the fence stride elsewhere.
2455 if (i915_gem_object_is_tiled(intel_fb->obj) &&
2456 (x + width) * cpp > fb->pitches[i]) {
2457 DRM_DEBUG_KMS("bad fb plane %d offset: 0x%x\n",
2463 * First pixel of the framebuffer from
2464 * the start of the normal gtt mapping.
2466 intel_fb->normal[i].x = x;
2467 intel_fb->normal[i].y = y;
2469 offset = _intel_compute_tile_offset(dev_priv, &x, &y,
2470 fb, i, fb->pitches[i],
2471 DRM_ROTATE_0, tile_size);
2472 offset /= tile_size;
2474 if (fb->modifier != DRM_FORMAT_MOD_LINEAR) {
2475 unsigned int tile_width, tile_height;
2476 unsigned int pitch_tiles;
2479 intel_tile_dims(fb, i, &tile_width, &tile_height);
2481 rot_info->plane[i].offset = offset;
2482 rot_info->plane[i].stride = DIV_ROUND_UP(fb->pitches[i], tile_width * cpp);
2483 rot_info->plane[i].width = DIV_ROUND_UP(x + width, tile_width);
2484 rot_info->plane[i].height = DIV_ROUND_UP(y + height, tile_height);
2486 intel_fb->rotated[i].pitch =
2487 rot_info->plane[i].height * tile_height;
2489 /* how many tiles does this plane need */
2490 size = rot_info->plane[i].stride * rot_info->plane[i].height;
2492 * If the plane isn't horizontally tile aligned,
2493 * we need one more tile.
2498 /* rotate the x/y offsets to match the GTT view */
2504 rot_info->plane[i].width * tile_width,
2505 rot_info->plane[i].height * tile_height,
2510 /* rotate the tile dimensions to match the GTT view */
2511 pitch_tiles = intel_fb->rotated[i].pitch / tile_height;
2512 swap(tile_width, tile_height);
2515 * We only keep the x/y offsets, so push all of the
2516 * gtt offset into the x/y offsets.
2518 _intel_adjust_tile_offset(&x, &y,
2519 tile_width, tile_height,
2520 tile_size, pitch_tiles,
2521 gtt_offset_rotated * tile_size, 0);
2523 gtt_offset_rotated += rot_info->plane[i].width * rot_info->plane[i].height;
2526 * First pixel of the framebuffer from
2527 * the start of the rotated gtt mapping.
2529 intel_fb->rotated[i].x = x;
2530 intel_fb->rotated[i].y = y;
2532 size = DIV_ROUND_UP((y + height) * fb->pitches[i] +
2533 x * cpp, tile_size);
2536 /* how many tiles in total needed in the bo */
2537 max_size = max(max_size, offset + size);
2540 if (max_size * tile_size > intel_fb->obj->base.size) {
2541 DRM_DEBUG_KMS("fb too big for bo (need %u bytes, have %zu bytes)\n",
2542 max_size * tile_size, intel_fb->obj->base.size);
2549 static int i9xx_format_to_fourcc(int format)
2552 case DISPPLANE_8BPP:
2553 return DRM_FORMAT_C8;
2554 case DISPPLANE_BGRX555:
2555 return DRM_FORMAT_XRGB1555;
2556 case DISPPLANE_BGRX565:
2557 return DRM_FORMAT_RGB565;
2559 case DISPPLANE_BGRX888:
2560 return DRM_FORMAT_XRGB8888;
2561 case DISPPLANE_RGBX888:
2562 return DRM_FORMAT_XBGR8888;
2563 case DISPPLANE_BGRX101010:
2564 return DRM_FORMAT_XRGB2101010;
2565 case DISPPLANE_RGBX101010:
2566 return DRM_FORMAT_XBGR2101010;
2570 static int skl_format_to_fourcc(int format, bool rgb_order, bool alpha)
2573 case PLANE_CTL_FORMAT_RGB_565:
2574 return DRM_FORMAT_RGB565;
2576 case PLANE_CTL_FORMAT_XRGB_8888:
2579 return DRM_FORMAT_ABGR8888;
2581 return DRM_FORMAT_XBGR8888;
2584 return DRM_FORMAT_ARGB8888;
2586 return DRM_FORMAT_XRGB8888;
2588 case PLANE_CTL_FORMAT_XRGB_2101010:
2590 return DRM_FORMAT_XBGR2101010;
2592 return DRM_FORMAT_XRGB2101010;
2597 intel_alloc_initial_plane_obj(struct intel_crtc *crtc,
2598 struct intel_initial_plane_config *plane_config)
2600 struct drm_device *dev = crtc->base.dev;
2601 struct drm_i915_private *dev_priv = to_i915(dev);
2602 struct i915_ggtt *ggtt = &dev_priv->ggtt;
2603 struct drm_i915_gem_object *obj = NULL;
2604 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
2605 struct drm_framebuffer *fb = &plane_config->fb->base;
2606 u32 base_aligned = round_down(plane_config->base, PAGE_SIZE);
2607 u32 size_aligned = round_up(plane_config->base + plane_config->size,
2610 size_aligned -= base_aligned;
2612 if (plane_config->size == 0)
2615 /* If the FB is too big, just don't use it since fbdev is not very
2616 * important and we should probably use that space with FBC or other
2618 if (size_aligned * 2 > ggtt->stolen_usable_size)
2621 mutex_lock(&dev->struct_mutex);
2622 obj = i915_gem_object_create_stolen_for_preallocated(dev_priv,
2626 mutex_unlock(&dev->struct_mutex);
2630 if (plane_config->tiling == I915_TILING_X)
2631 obj->tiling_and_stride = fb->pitches[0] | I915_TILING_X;
2633 mode_cmd.pixel_format = fb->format->format;
2634 mode_cmd.width = fb->width;
2635 mode_cmd.height = fb->height;
2636 mode_cmd.pitches[0] = fb->pitches[0];
2637 mode_cmd.modifier[0] = fb->modifier;
2638 mode_cmd.flags = DRM_MODE_FB_MODIFIERS;
2640 if (intel_framebuffer_init(to_intel_framebuffer(fb), obj, &mode_cmd)) {
2641 DRM_DEBUG_KMS("intel fb init failed\n");
2646 DRM_DEBUG_KMS("initial plane fb obj %p\n", obj);
2650 i915_gem_object_put(obj);
2654 /* Update plane->state->fb to match plane->fb after driver-internal updates */
2656 update_state_fb(struct drm_plane *plane)
2658 if (plane->fb == plane->state->fb)
2661 if (plane->state->fb)
2662 drm_framebuffer_unreference(plane->state->fb);
2663 plane->state->fb = plane->fb;
2664 if (plane->state->fb)
2665 drm_framebuffer_reference(plane->state->fb);
2669 intel_set_plane_visible(struct intel_crtc_state *crtc_state,
2670 struct intel_plane_state *plane_state,
2673 struct intel_plane *plane = to_intel_plane(plane_state->base.plane);
2675 plane_state->base.visible = visible;
2677 /* FIXME pre-g4x don't work like this */
2679 crtc_state->base.plane_mask |= BIT(drm_plane_index(&plane->base));
2680 crtc_state->active_planes |= BIT(plane->id);
2682 crtc_state->base.plane_mask &= ~BIT(drm_plane_index(&plane->base));
2683 crtc_state->active_planes &= ~BIT(plane->id);
2686 DRM_DEBUG_KMS("%s active planes 0x%x\n",
2687 crtc_state->base.crtc->name,
2688 crtc_state->active_planes);
2692 intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
2693 struct intel_initial_plane_config *plane_config)
2695 struct drm_device *dev = intel_crtc->base.dev;
2696 struct drm_i915_private *dev_priv = to_i915(dev);
2698 struct drm_i915_gem_object *obj;
2699 struct drm_plane *primary = intel_crtc->base.primary;
2700 struct drm_plane_state *plane_state = primary->state;
2701 struct drm_crtc_state *crtc_state = intel_crtc->base.state;
2702 struct intel_plane *intel_plane = to_intel_plane(primary);
2703 struct intel_plane_state *intel_state =
2704 to_intel_plane_state(plane_state);
2705 struct drm_framebuffer *fb;
2707 if (!plane_config->fb)
2710 if (intel_alloc_initial_plane_obj(intel_crtc, plane_config)) {
2711 fb = &plane_config->fb->base;
2715 kfree(plane_config->fb);
2718 * Failed to alloc the obj, check to see if we should share
2719 * an fb with another CRTC instead
2721 for_each_crtc(dev, c) {
2722 struct intel_plane_state *state;
2724 if (c == &intel_crtc->base)
2727 if (!to_intel_crtc(c)->active)
2730 state = to_intel_plane_state(c->primary->state);
2734 if (intel_plane_ggtt_offset(state) == plane_config->base) {
2735 fb = c->primary->fb;
2736 drm_framebuffer_reference(fb);
2742 * We've failed to reconstruct the BIOS FB. Current display state
2743 * indicates that the primary plane is visible, but has a NULL FB,
2744 * which will lead to problems later if we don't fix it up. The
2745 * simplest solution is to just disable the primary plane now and
2746 * pretend the BIOS never had it enabled.
2748 intel_set_plane_visible(to_intel_crtc_state(crtc_state),
2749 to_intel_plane_state(plane_state),
2751 intel_pre_disable_primary_noatomic(&intel_crtc->base);
2752 trace_intel_disable_plane(primary, intel_crtc);
2753 intel_plane->disable_plane(primary, &intel_crtc->base);
2758 mutex_lock(&dev->struct_mutex);
2760 intel_pin_and_fence_fb_obj(fb, primary->state->rotation);
2761 mutex_unlock(&dev->struct_mutex);
2762 if (IS_ERR(intel_state->vma)) {
2763 DRM_ERROR("failed to pin boot fb on pipe %d: %li\n",
2764 intel_crtc->pipe, PTR_ERR(intel_state->vma));
2766 intel_state->vma = NULL;
2767 drm_framebuffer_unreference(fb);
2771 plane_state->src_x = 0;
2772 plane_state->src_y = 0;
2773 plane_state->src_w = fb->width << 16;
2774 plane_state->src_h = fb->height << 16;
2776 plane_state->crtc_x = 0;
2777 plane_state->crtc_y = 0;
2778 plane_state->crtc_w = fb->width;
2779 plane_state->crtc_h = fb->height;
2781 intel_state->base.src = drm_plane_state_src(plane_state);
2782 intel_state->base.dst = drm_plane_state_dest(plane_state);
2784 obj = intel_fb_obj(fb);
2785 if (i915_gem_object_is_tiled(obj))
2786 dev_priv->preserve_bios_swizzle = true;
2788 drm_framebuffer_reference(fb);
2789 primary->fb = primary->state->fb = fb;
2790 primary->crtc = primary->state->crtc = &intel_crtc->base;
2792 intel_set_plane_visible(to_intel_crtc_state(crtc_state),
2793 to_intel_plane_state(plane_state),
2796 atomic_or(to_intel_plane(primary)->frontbuffer_bit,
2797 &obj->frontbuffer_bits);
2800 static int skl_max_plane_width(const struct drm_framebuffer *fb, int plane,
2801 unsigned int rotation)
2803 int cpp = fb->format->cpp[plane];
2805 switch (fb->modifier) {
2806 case DRM_FORMAT_MOD_LINEAR:
2807 case I915_FORMAT_MOD_X_TILED:
2820 case I915_FORMAT_MOD_Y_TILED:
2821 case I915_FORMAT_MOD_Yf_TILED:
2836 MISSING_CASE(fb->modifier);
2842 static int skl_check_main_surface(struct intel_plane_state *plane_state)
2844 const struct drm_framebuffer *fb = plane_state->base.fb;
2845 unsigned int rotation = plane_state->base.rotation;
2846 int x = plane_state->base.src.x1 >> 16;
2847 int y = plane_state->base.src.y1 >> 16;
2848 int w = drm_rect_width(&plane_state->base.src) >> 16;
2849 int h = drm_rect_height(&plane_state->base.src) >> 16;
2850 int max_width = skl_max_plane_width(fb, 0, rotation);
2851 int max_height = 4096;
2852 u32 alignment, offset, aux_offset = plane_state->aux.offset;
2854 if (w > max_width || h > max_height) {
2855 DRM_DEBUG_KMS("requested Y/RGB source size %dx%d too big (limit %dx%d)\n",
2856 w, h, max_width, max_height);
2860 intel_add_fb_offsets(&x, &y, plane_state, 0);
2861 offset = intel_compute_tile_offset(&x, &y, plane_state, 0);
2862 alignment = intel_surf_alignment(fb, 0);
2865 * AUX surface offset is specified as the distance from the
2866 * main surface offset, and it must be non-negative. Make
2867 * sure that is what we will get.
2869 if (offset > aux_offset)
2870 offset = intel_adjust_tile_offset(&x, &y, plane_state, 0,
2871 offset, aux_offset & ~(alignment - 1));
2874 * When using an X-tiled surface, the plane blows up
2875 * if the x offset + width exceed the stride.
2877 * TODO: linear and Y-tiled seem fine, Yf untested,
2879 if (fb->modifier == I915_FORMAT_MOD_X_TILED) {
2880 int cpp = fb->format->cpp[0];
2882 while ((x + w) * cpp > fb->pitches[0]) {
2884 DRM_DEBUG_KMS("Unable to find suitable display surface offset\n");
2888 offset = intel_adjust_tile_offset(&x, &y, plane_state, 0,
2889 offset, offset - alignment);
2893 plane_state->main.offset = offset;
2894 plane_state->main.x = x;
2895 plane_state->main.y = y;
2900 static int skl_check_nv12_aux_surface(struct intel_plane_state *plane_state)
2902 const struct drm_framebuffer *fb = plane_state->base.fb;
2903 unsigned int rotation = plane_state->base.rotation;
2904 int max_width = skl_max_plane_width(fb, 1, rotation);
2905 int max_height = 4096;
2906 int x = plane_state->base.src.x1 >> 17;
2907 int y = plane_state->base.src.y1 >> 17;
2908 int w = drm_rect_width(&plane_state->base.src) >> 17;
2909 int h = drm_rect_height(&plane_state->base.src) >> 17;
2912 intel_add_fb_offsets(&x, &y, plane_state, 1);
2913 offset = intel_compute_tile_offset(&x, &y, plane_state, 1);
2915 /* FIXME not quite sure how/if these apply to the chroma plane */
2916 if (w > max_width || h > max_height) {
2917 DRM_DEBUG_KMS("CbCr source size %dx%d too big (limit %dx%d)\n",
2918 w, h, max_width, max_height);
2922 plane_state->aux.offset = offset;
2923 plane_state->aux.x = x;
2924 plane_state->aux.y = y;
2929 int skl_check_plane_surface(struct intel_plane_state *plane_state)
2931 const struct drm_framebuffer *fb = plane_state->base.fb;
2932 unsigned int rotation = plane_state->base.rotation;
2935 if (!plane_state->base.visible)
2938 /* Rotate src coordinates to match rotated GTT view */
2939 if (drm_rotation_90_or_270(rotation))
2940 drm_rect_rotate(&plane_state->base.src,
2941 fb->width << 16, fb->height << 16,
2945 * Handle the AUX surface first since
2946 * the main surface setup depends on it.
2948 if (fb->format->format == DRM_FORMAT_NV12) {
2949 ret = skl_check_nv12_aux_surface(plane_state);
2953 plane_state->aux.offset = ~0xfff;
2954 plane_state->aux.x = 0;
2955 plane_state->aux.y = 0;
2958 ret = skl_check_main_surface(plane_state);
2965 static u32 i9xx_plane_ctl(const struct intel_crtc_state *crtc_state,
2966 const struct intel_plane_state *plane_state)
2968 struct drm_i915_private *dev_priv =
2969 to_i915(plane_state->base.plane->dev);
2970 struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
2971 const struct drm_framebuffer *fb = plane_state->base.fb;
2972 unsigned int rotation = plane_state->base.rotation;
2975 dspcntr = DISPLAY_PLANE_ENABLE | DISPPLANE_GAMMA_ENABLE;
2977 if (IS_G4X(dev_priv) || IS_GEN5(dev_priv) ||
2978 IS_GEN6(dev_priv) || IS_IVYBRIDGE(dev_priv))
2979 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2981 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
2982 dspcntr |= DISPPLANE_PIPE_CSC_ENABLE;
2984 if (INTEL_GEN(dev_priv) < 4) {
2985 if (crtc->pipe == PIPE_B)
2986 dspcntr |= DISPPLANE_SEL_PIPE_B;
2989 switch (fb->format->format) {
2991 dspcntr |= DISPPLANE_8BPP;
2993 case DRM_FORMAT_XRGB1555:
2994 dspcntr |= DISPPLANE_BGRX555;
2996 case DRM_FORMAT_RGB565:
2997 dspcntr |= DISPPLANE_BGRX565;
2999 case DRM_FORMAT_XRGB8888:
3000 dspcntr |= DISPPLANE_BGRX888;
3002 case DRM_FORMAT_XBGR8888:
3003 dspcntr |= DISPPLANE_RGBX888;
3005 case DRM_FORMAT_XRGB2101010:
3006 dspcntr |= DISPPLANE_BGRX101010;
3008 case DRM_FORMAT_XBGR2101010:
3009 dspcntr |= DISPPLANE_RGBX101010;
3012 MISSING_CASE(fb->format->format);
3016 if (INTEL_GEN(dev_priv) >= 4 &&
3017 fb->modifier == I915_FORMAT_MOD_X_TILED)
3018 dspcntr |= DISPPLANE_TILED;
3020 if (rotation & DRM_ROTATE_180)
3021 dspcntr |= DISPPLANE_ROTATE_180;
3023 if (rotation & DRM_REFLECT_X)
3024 dspcntr |= DISPPLANE_MIRROR;
3029 int i9xx_check_plane_surface(struct intel_plane_state *plane_state)
3031 struct drm_i915_private *dev_priv =
3032 to_i915(plane_state->base.plane->dev);
3033 int src_x = plane_state->base.src.x1 >> 16;
3034 int src_y = plane_state->base.src.y1 >> 16;
3037 intel_add_fb_offsets(&src_x, &src_y, plane_state, 0);
3039 if (INTEL_GEN(dev_priv) >= 4)
3040 offset = intel_compute_tile_offset(&src_x, &src_y,
3045 /* HSW/BDW do this automagically in hardware */
3046 if (!IS_HASWELL(dev_priv) && !IS_BROADWELL(dev_priv)) {
3047 unsigned int rotation = plane_state->base.rotation;
3048 int src_w = drm_rect_width(&plane_state->base.src) >> 16;
3049 int src_h = drm_rect_height(&plane_state->base.src) >> 16;
3051 if (rotation & DRM_ROTATE_180) {
3054 } else if (rotation & DRM_REFLECT_X) {
3059 plane_state->main.offset = offset;
3060 plane_state->main.x = src_x;
3061 plane_state->main.y = src_y;
3066 static void i9xx_update_primary_plane(struct drm_plane *primary,
3067 const struct intel_crtc_state *crtc_state,
3068 const struct intel_plane_state *plane_state)
3070 struct drm_i915_private *dev_priv = to_i915(primary->dev);
3071 struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
3072 struct drm_framebuffer *fb = plane_state->base.fb;
3073 int plane = intel_crtc->plane;
3075 u32 dspcntr = plane_state->ctl;
3076 i915_reg_t reg = DSPCNTR(plane);
3077 int x = plane_state->main.x;
3078 int y = plane_state->main.y;
3079 unsigned long irqflags;
3081 linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
3083 if (INTEL_GEN(dev_priv) >= 4)
3084 intel_crtc->dspaddr_offset = plane_state->main.offset;
3086 intel_crtc->dspaddr_offset = linear_offset;
3088 intel_crtc->adjusted_x = x;
3089 intel_crtc->adjusted_y = y;
3091 spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
3093 if (INTEL_GEN(dev_priv) < 4) {
3094 /* pipesrc and dspsize control the size that is scaled from,
3095 * which should always be the user's requested size.
3097 I915_WRITE_FW(DSPSIZE(plane),
3098 ((crtc_state->pipe_src_h - 1) << 16) |
3099 (crtc_state->pipe_src_w - 1));
3100 I915_WRITE_FW(DSPPOS(plane), 0);
3101 } else if (IS_CHERRYVIEW(dev_priv) && plane == PLANE_B) {
3102 I915_WRITE_FW(PRIMSIZE(plane),
3103 ((crtc_state->pipe_src_h - 1) << 16) |
3104 (crtc_state->pipe_src_w - 1));
3105 I915_WRITE_FW(PRIMPOS(plane), 0);
3106 I915_WRITE_FW(PRIMCNSTALPHA(plane), 0);
3109 I915_WRITE_FW(reg, dspcntr);
3111 I915_WRITE_FW(DSPSTRIDE(plane), fb->pitches[0]);
3112 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
3113 I915_WRITE_FW(DSPSURF(plane),
3114 intel_plane_ggtt_offset(plane_state) +
3115 intel_crtc->dspaddr_offset);
3116 I915_WRITE_FW(DSPOFFSET(plane), (y << 16) | x);
3117 } else if (INTEL_GEN(dev_priv) >= 4) {
3118 I915_WRITE_FW(DSPSURF(plane),
3119 intel_plane_ggtt_offset(plane_state) +
3120 intel_crtc->dspaddr_offset);
3121 I915_WRITE_FW(DSPTILEOFF(plane), (y << 16) | x);
3122 I915_WRITE_FW(DSPLINOFF(plane), linear_offset);
3124 I915_WRITE_FW(DSPADDR(plane),
3125 intel_plane_ggtt_offset(plane_state) +
3126 intel_crtc->dspaddr_offset);
3128 POSTING_READ_FW(reg);
3130 spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
3133 static void i9xx_disable_primary_plane(struct drm_plane *primary,
3134 struct drm_crtc *crtc)
3136 struct drm_device *dev = crtc->dev;
3137 struct drm_i915_private *dev_priv = to_i915(dev);
3138 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3139 int plane = intel_crtc->plane;
3140 unsigned long irqflags;
3142 spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
3144 I915_WRITE_FW(DSPCNTR(plane), 0);
3145 if (INTEL_INFO(dev_priv)->gen >= 4)
3146 I915_WRITE_FW(DSPSURF(plane), 0);
3148 I915_WRITE_FW(DSPADDR(plane), 0);
3149 POSTING_READ_FW(DSPCNTR(plane));
3151 spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
3155 intel_fb_stride_alignment(const struct drm_framebuffer *fb, int plane)
3157 if (fb->modifier == DRM_FORMAT_MOD_LINEAR)
3160 return intel_tile_width_bytes(fb, plane);
3163 static void skl_detach_scaler(struct intel_crtc *intel_crtc, int id)
3165 struct drm_device *dev = intel_crtc->base.dev;
3166 struct drm_i915_private *dev_priv = to_i915(dev);
3168 I915_WRITE(SKL_PS_CTRL(intel_crtc->pipe, id), 0);
3169 I915_WRITE(SKL_PS_WIN_POS(intel_crtc->pipe, id), 0);
3170 I915_WRITE(SKL_PS_WIN_SZ(intel_crtc->pipe, id), 0);
3174 * This function detaches (aka. unbinds) unused scalers in hardware
3176 static void skl_detach_scalers(struct intel_crtc *intel_crtc)
3178 struct intel_crtc_scaler_state *scaler_state;
3181 scaler_state = &intel_crtc->config->scaler_state;
3183 /* loop through and disable scalers that aren't in use */
3184 for (i = 0; i < intel_crtc->num_scalers; i++) {
3185 if (!scaler_state->scalers[i].in_use)
3186 skl_detach_scaler(intel_crtc, i);
3190 u32 skl_plane_stride(const struct drm_framebuffer *fb, int plane,
3191 unsigned int rotation)
3195 if (plane >= fb->format->num_planes)
3198 stride = intel_fb_pitch(fb, plane, rotation);
3201 * The stride is either expressed as a multiple of 64 bytes chunks for
3202 * linear buffers or in number of tiles for tiled buffers.
3204 if (drm_rotation_90_or_270(rotation))
3205 stride /= intel_tile_height(fb, plane);
3207 stride /= intel_fb_stride_alignment(fb, plane);
3212 static u32 skl_plane_ctl_format(uint32_t pixel_format)
3214 switch (pixel_format) {
3216 return PLANE_CTL_FORMAT_INDEXED;
3217 case DRM_FORMAT_RGB565:
3218 return PLANE_CTL_FORMAT_RGB_565;
3219 case DRM_FORMAT_XBGR8888:
3220 return PLANE_CTL_FORMAT_XRGB_8888 | PLANE_CTL_ORDER_RGBX;
3221 case DRM_FORMAT_XRGB8888:
3222 return PLANE_CTL_FORMAT_XRGB_8888;
3224 * XXX: For ARBG/ABGR formats we default to expecting scanout buffers
3225 * to be already pre-multiplied. We need to add a knob (or a different
3226 * DRM_FORMAT) for user-space to configure that.
3228 case DRM_FORMAT_ABGR8888:
3229 return PLANE_CTL_FORMAT_XRGB_8888 | PLANE_CTL_ORDER_RGBX |
3230 PLANE_CTL_ALPHA_SW_PREMULTIPLY;
3231 case DRM_FORMAT_ARGB8888:
3232 return PLANE_CTL_FORMAT_XRGB_8888 |
3233 PLANE_CTL_ALPHA_SW_PREMULTIPLY;
3234 case DRM_FORMAT_XRGB2101010:
3235 return PLANE_CTL_FORMAT_XRGB_2101010;
3236 case DRM_FORMAT_XBGR2101010:
3237 return PLANE_CTL_ORDER_RGBX | PLANE_CTL_FORMAT_XRGB_2101010;
3238 case DRM_FORMAT_YUYV:
3239 return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_YUYV;
3240 case DRM_FORMAT_YVYU:
3241 return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_YVYU;
3242 case DRM_FORMAT_UYVY:
3243 return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_UYVY;
3244 case DRM_FORMAT_VYUY:
3245 return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_VYUY;
3247 MISSING_CASE(pixel_format);
3253 static u32 skl_plane_ctl_tiling(uint64_t fb_modifier)
3255 switch (fb_modifier) {
3256 case DRM_FORMAT_MOD_LINEAR:
3258 case I915_FORMAT_MOD_X_TILED:
3259 return PLANE_CTL_TILED_X;
3260 case I915_FORMAT_MOD_Y_TILED:
3261 return PLANE_CTL_TILED_Y;
3262 case I915_FORMAT_MOD_Yf_TILED:
3263 return PLANE_CTL_TILED_YF;
3265 MISSING_CASE(fb_modifier);
3271 static u32 skl_plane_ctl_rotation(unsigned int rotation)
3277 * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr
3278 * while i915 HW rotation is clockwise, thats why this swapping.
3281 return PLANE_CTL_ROTATE_270;
3282 case DRM_ROTATE_180:
3283 return PLANE_CTL_ROTATE_180;
3284 case DRM_ROTATE_270:
3285 return PLANE_CTL_ROTATE_90;
3287 MISSING_CASE(rotation);
3293 u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
3294 const struct intel_plane_state *plane_state)
3296 struct drm_i915_private *dev_priv =
3297 to_i915(plane_state->base.plane->dev);
3298 const struct drm_framebuffer *fb = plane_state->base.fb;
3299 unsigned int rotation = plane_state->base.rotation;
3300 const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
3303 plane_ctl = PLANE_CTL_ENABLE;
3305 if (!IS_GEMINILAKE(dev_priv)) {
3307 PLANE_CTL_PIPE_GAMMA_ENABLE |
3308 PLANE_CTL_PIPE_CSC_ENABLE |
3309 PLANE_CTL_PLANE_GAMMA_DISABLE;
3312 plane_ctl |= skl_plane_ctl_format(fb->format->format);
3313 plane_ctl |= skl_plane_ctl_tiling(fb->modifier);
3314 plane_ctl |= skl_plane_ctl_rotation(rotation);
3316 if (key->flags & I915_SET_COLORKEY_DESTINATION)
3317 plane_ctl |= PLANE_CTL_KEY_ENABLE_DESTINATION;
3318 else if (key->flags & I915_SET_COLORKEY_SOURCE)
3319 plane_ctl |= PLANE_CTL_KEY_ENABLE_SOURCE;
3324 static void skylake_update_primary_plane(struct drm_plane *plane,
3325 const struct intel_crtc_state *crtc_state,
3326 const struct intel_plane_state *plane_state)
3328 struct drm_device *dev = plane->dev;
3329 struct drm_i915_private *dev_priv = to_i915(dev);
3330 struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
3331 struct drm_framebuffer *fb = plane_state->base.fb;
3332 enum plane_id plane_id = to_intel_plane(plane)->id;
3333 enum pipe pipe = to_intel_plane(plane)->pipe;
3334 u32 plane_ctl = plane_state->ctl;
3335 unsigned int rotation = plane_state->base.rotation;
3336 u32 stride = skl_plane_stride(fb, 0, rotation);
3337 u32 surf_addr = plane_state->main.offset;
3338 int scaler_id = plane_state->scaler_id;
3339 int src_x = plane_state->main.x;
3340 int src_y = plane_state->main.y;
3341 int src_w = drm_rect_width(&plane_state->base.src) >> 16;
3342 int src_h = drm_rect_height(&plane_state->base.src) >> 16;
3343 int dst_x = plane_state->base.dst.x1;
3344 int dst_y = plane_state->base.dst.y1;
3345 int dst_w = drm_rect_width(&plane_state->base.dst);
3346 int dst_h = drm_rect_height(&plane_state->base.dst);
3347 unsigned long irqflags;
3349 /* Sizes are 0 based */
3355 intel_crtc->dspaddr_offset = surf_addr;
3357 intel_crtc->adjusted_x = src_x;
3358 intel_crtc->adjusted_y = src_y;
3360 spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
3362 if (IS_GEMINILAKE(dev_priv)) {
3363 I915_WRITE_FW(PLANE_COLOR_CTL(pipe, plane_id),
3364 PLANE_COLOR_PIPE_GAMMA_ENABLE |
3365 PLANE_COLOR_PIPE_CSC_ENABLE |
3366 PLANE_COLOR_PLANE_GAMMA_DISABLE);
3369 I915_WRITE_FW(PLANE_CTL(pipe, plane_id), plane_ctl);
3370 I915_WRITE_FW(PLANE_OFFSET(pipe, plane_id), (src_y << 16) | src_x);
3371 I915_WRITE_FW(PLANE_STRIDE(pipe, plane_id), stride);
3372 I915_WRITE_FW(PLANE_SIZE(pipe, plane_id), (src_h << 16) | src_w);
3374 if (scaler_id >= 0) {
3375 uint32_t ps_ctrl = 0;
3377 WARN_ON(!dst_w || !dst_h);
3378 ps_ctrl = PS_SCALER_EN | PS_PLANE_SEL(plane_id) |
3379 crtc_state->scaler_state.scalers[scaler_id].mode;
3380 I915_WRITE_FW(SKL_PS_CTRL(pipe, scaler_id), ps_ctrl);
3381 I915_WRITE_FW(SKL_PS_PWR_GATE(pipe, scaler_id), 0);
3382 I915_WRITE_FW(SKL_PS_WIN_POS(pipe, scaler_id), (dst_x << 16) | dst_y);
3383 I915_WRITE_FW(SKL_PS_WIN_SZ(pipe, scaler_id), (dst_w << 16) | dst_h);
3384 I915_WRITE_FW(PLANE_POS(pipe, plane_id), 0);
3386 I915_WRITE_FW(PLANE_POS(pipe, plane_id), (dst_y << 16) | dst_x);
3389 I915_WRITE_FW(PLANE_SURF(pipe, plane_id),
3390 intel_plane_ggtt_offset(plane_state) + surf_addr);
3392 POSTING_READ_FW(PLANE_SURF(pipe, plane_id));
3394 spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
3397 static void skylake_disable_primary_plane(struct drm_plane *primary,
3398 struct drm_crtc *crtc)
3400 struct drm_device *dev = crtc->dev;
3401 struct drm_i915_private *dev_priv = to_i915(dev);
3402 enum plane_id plane_id = to_intel_plane(primary)->id;
3403 enum pipe pipe = to_intel_plane(primary)->pipe;
3404 unsigned long irqflags;
3406 spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
3408 I915_WRITE_FW(PLANE_CTL(pipe, plane_id), 0);
3409 I915_WRITE_FW(PLANE_SURF(pipe, plane_id), 0);
3410 POSTING_READ_FW(PLANE_SURF(pipe, plane_id));
3412 spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
3415 static void intel_complete_page_flips(struct drm_i915_private *dev_priv)
3417 struct intel_crtc *crtc;
3419 for_each_intel_crtc(&dev_priv->drm, crtc)
3420 intel_finish_page_flip_cs(dev_priv, crtc->pipe);
3423 static void intel_update_primary_planes(struct drm_device *dev)
3425 struct drm_crtc *crtc;
3427 for_each_crtc(dev, crtc) {
3428 struct intel_plane *plane = to_intel_plane(crtc->primary);
3429 struct intel_plane_state *plane_state =
3430 to_intel_plane_state(plane->base.state);
3432 if (plane_state->base.visible) {
3433 trace_intel_update_plane(&plane->base,
3434 to_intel_crtc(crtc));
3436 plane->update_plane(&plane->base,
3437 to_intel_crtc_state(crtc->state),
3444 __intel_display_resume(struct drm_device *dev,
3445 struct drm_atomic_state *state,
3446 struct drm_modeset_acquire_ctx *ctx)
3448 struct drm_crtc_state *crtc_state;
3449 struct drm_crtc *crtc;
3452 intel_modeset_setup_hw_state(dev);
3453 i915_redisable_vga(to_i915(dev));
3459 * We've duplicated the state, pointers to the old state are invalid.
3461 * Don't attempt to use the old state until we commit the duplicated state.
3463 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
3465 * Force recalculation even if we restore
3466 * current state. With fast modeset this may not result
3467 * in a modeset when the state is compatible.
3469 crtc_state->mode_changed = true;
3472 /* ignore any reset values/BIOS leftovers in the WM registers */
3473 if (!HAS_GMCH_DISPLAY(to_i915(dev)))
3474 to_intel_atomic_state(state)->skip_intermediate_wm = true;
3476 ret = drm_atomic_helper_commit_duplicated_state(state, ctx);
3478 WARN_ON(ret == -EDEADLK);
3482 static bool gpu_reset_clobbers_display(struct drm_i915_private *dev_priv)
3484 return intel_has_gpu_reset(dev_priv) &&
3485 INTEL_GEN(dev_priv) < 5 && !IS_G4X(dev_priv);
3488 void intel_prepare_reset(struct drm_i915_private *dev_priv)
3490 struct drm_device *dev = &dev_priv->drm;
3491 struct drm_modeset_acquire_ctx *ctx = &dev_priv->reset_ctx;
3492 struct drm_atomic_state *state;
3496 * Need mode_config.mutex so that we don't
3497 * trample ongoing ->detect() and whatnot.
3499 mutex_lock(&dev->mode_config.mutex);
3500 drm_modeset_acquire_init(ctx, 0);
3502 ret = drm_modeset_lock_all_ctx(dev, ctx);
3503 if (ret != -EDEADLK)
3506 drm_modeset_backoff(ctx);
3509 /* reset doesn't touch the display, but flips might get nuked anyway, */
3510 if (!i915.force_reset_modeset_test &&
3511 !gpu_reset_clobbers_display(dev_priv))
3515 * Disabling the crtcs gracefully seems nicer. Also the
3516 * g33 docs say we should at least disable all the planes.
3518 state = drm_atomic_helper_duplicate_state(dev, ctx);
3519 if (IS_ERR(state)) {
3520 ret = PTR_ERR(state);
3521 DRM_ERROR("Duplicating state failed with %i\n", ret);
3525 ret = drm_atomic_helper_disable_all(dev, ctx);
3527 DRM_ERROR("Suspending crtc's failed with %i\n", ret);
3528 drm_atomic_state_put(state);
3532 dev_priv->modeset_restore_state = state;
3533 state->acquire_ctx = ctx;
3536 void intel_finish_reset(struct drm_i915_private *dev_priv)
3538 struct drm_device *dev = &dev_priv->drm;
3539 struct drm_modeset_acquire_ctx *ctx = &dev_priv->reset_ctx;
3540 struct drm_atomic_state *state = dev_priv->modeset_restore_state;
3544 * Flips in the rings will be nuked by the reset,
3545 * so complete all pending flips so that user space
3546 * will get its events and not get stuck.
3548 intel_complete_page_flips(dev_priv);
3550 dev_priv->modeset_restore_state = NULL;
3552 /* reset doesn't touch the display */
3553 if (!gpu_reset_clobbers_display(dev_priv)) {
3556 * Flips in the rings have been nuked by the reset,
3557 * so update the base address of all primary
3558 * planes to the the last fb to make sure we're
3559 * showing the correct fb after a reset.
3561 * FIXME: Atomic will make this obsolete since we won't schedule
3562 * CS-based flips (which might get lost in gpu resets) any more.
3564 intel_update_primary_planes(dev);
3566 ret = __intel_display_resume(dev, state, ctx);
3568 DRM_ERROR("Restoring old state failed with %i\n", ret);
3572 * The display has been reset as well,
3573 * so need a full re-initialization.
3575 intel_runtime_pm_disable_interrupts(dev_priv);
3576 intel_runtime_pm_enable_interrupts(dev_priv);
3578 intel_pps_unlock_regs_wa(dev_priv);
3579 intel_modeset_init_hw(dev);
3581 spin_lock_irq(&dev_priv->irq_lock);
3582 if (dev_priv->display.hpd_irq_setup)
3583 dev_priv->display.hpd_irq_setup(dev_priv);
3584 spin_unlock_irq(&dev_priv->irq_lock);
3586 ret = __intel_display_resume(dev, state, ctx);
3588 DRM_ERROR("Restoring old state failed with %i\n", ret);
3590 intel_hpd_init(dev_priv);
3594 drm_atomic_state_put(state);
3595 drm_modeset_drop_locks(ctx);
3596 drm_modeset_acquire_fini(ctx);
3597 mutex_unlock(&dev->mode_config.mutex);
3600 static bool abort_flip_on_reset(struct intel_crtc *crtc)
3602 struct i915_gpu_error *error = &to_i915(crtc->base.dev)->gpu_error;
3604 if (i915_reset_backoff(error))
3607 if (crtc->reset_count != i915_reset_count(error))
3613 static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
3615 struct drm_device *dev = crtc->dev;
3616 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3619 if (abort_flip_on_reset(intel_crtc))
3622 spin_lock_irq(&dev->event_lock);
3623 pending = to_intel_crtc(crtc)->flip_work != NULL;
3624 spin_unlock_irq(&dev->event_lock);
3629 static void intel_update_pipe_config(struct intel_crtc *crtc,
3630 struct intel_crtc_state *old_crtc_state)
3632 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
3633 struct intel_crtc_state *pipe_config =
3634 to_intel_crtc_state(crtc->base.state);
3636 /* drm_atomic_helper_update_legacy_modeset_state might not be called. */
3637 crtc->base.mode = crtc->base.state->mode;
3640 * Update pipe size and adjust fitter if needed: the reason for this is
3641 * that in compute_mode_changes we check the native mode (not the pfit
3642 * mode) to see if we can flip rather than do a full mode set. In the
3643 * fastboot case, we'll flip, but if we don't update the pipesrc and
3644 * pfit state, we'll end up with a big fb scanned out into the wrong
3648 I915_WRITE(PIPESRC(crtc->pipe),
3649 ((pipe_config->pipe_src_w - 1) << 16) |
3650 (pipe_config->pipe_src_h - 1));
3652 /* on skylake this is done by detaching scalers */
3653 if (INTEL_GEN(dev_priv) >= 9) {
3654 skl_detach_scalers(crtc);
3656 if (pipe_config->pch_pfit.enabled)
3657 skylake_pfit_enable(crtc);
3658 } else if (HAS_PCH_SPLIT(dev_priv)) {
3659 if (pipe_config->pch_pfit.enabled)
3660 ironlake_pfit_enable(crtc);
3661 else if (old_crtc_state->pch_pfit.enabled)
3662 ironlake_pfit_disable(crtc, true);
3666 static void intel_fdi_normal_train(struct intel_crtc *crtc)
3668 struct drm_device *dev = crtc->base.dev;
3669 struct drm_i915_private *dev_priv = to_i915(dev);
3670 int pipe = crtc->pipe;
3674 /* enable normal train */
3675 reg = FDI_TX_CTL(pipe);
3676 temp = I915_READ(reg);
3677 if (IS_IVYBRIDGE(dev_priv)) {
3678 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
3679 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
3681 temp &= ~FDI_LINK_TRAIN_NONE;
3682 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
3684 I915_WRITE(reg, temp);
3686 reg = FDI_RX_CTL(pipe);
3687 temp = I915_READ(reg);
3688 if (HAS_PCH_CPT(dev_priv)) {
3689 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
3690 temp |= FDI_LINK_TRAIN_NORMAL_CPT;
3692 temp &= ~FDI_LINK_TRAIN_NONE;
3693 temp |= FDI_LINK_TRAIN_NONE;
3695 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
3697 /* wait one idle pattern time */
3701 /* IVB wants error correction enabled */
3702 if (IS_IVYBRIDGE(dev_priv))
3703 I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
3704 FDI_FE_ERRC_ENABLE);
3707 /* The FDI link training functions for ILK/Ibexpeak. */
3708 static void ironlake_fdi_link_train(struct intel_crtc *crtc,
3709 const struct intel_crtc_state *crtc_state)
3711 struct drm_device *dev = crtc->base.dev;
3712 struct drm_i915_private *dev_priv = to_i915(dev);
3713 int pipe = crtc->pipe;
3717 /* FDI needs bits from pipe first */
3718 assert_pipe_enabled(dev_priv, pipe);
3720 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3722 reg = FDI_RX_IMR(pipe);
3723 temp = I915_READ(reg);
3724 temp &= ~FDI_RX_SYMBOL_LOCK;
3725 temp &= ~FDI_RX_BIT_LOCK;
3726 I915_WRITE(reg, temp);
3730 /* enable CPU FDI TX and PCH FDI RX */
3731 reg = FDI_TX_CTL(pipe);
3732 temp = I915_READ(reg);
3733 temp &= ~FDI_DP_PORT_WIDTH_MASK;
3734 temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
3735 temp &= ~FDI_LINK_TRAIN_NONE;
3736 temp |= FDI_LINK_TRAIN_PATTERN_1;
3737 I915_WRITE(reg, temp | FDI_TX_ENABLE);
3739 reg = FDI_RX_CTL(pipe);
3740 temp = I915_READ(reg);
3741 temp &= ~FDI_LINK_TRAIN_NONE;
3742 temp |= FDI_LINK_TRAIN_PATTERN_1;
3743 I915_WRITE(reg, temp | FDI_RX_ENABLE);
3748 /* Ironlake workaround, enable clock pointer after FDI enable*/
3749 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
3750 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
3751 FDI_RX_PHASE_SYNC_POINTER_EN);
3753 reg = FDI_RX_IIR(pipe);
3754 for (tries = 0; tries < 5; tries++) {
3755 temp = I915_READ(reg);
3756 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
3758 if ((temp & FDI_RX_BIT_LOCK)) {
3759 DRM_DEBUG_KMS("FDI train 1 done.\n");
3760 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
3765 DRM_ERROR("FDI train 1 fail!\n");
3768 reg = FDI_TX_CTL(pipe);
3769 temp = I915_READ(reg);
3770 temp &= ~FDI_LINK_TRAIN_NONE;
3771 temp |= FDI_LINK_TRAIN_PATTERN_2;
3772 I915_WRITE(reg, temp);
3774 reg = FDI_RX_CTL(pipe);
3775 temp = I915_READ(reg);
3776 temp &= ~FDI_LINK_TRAIN_NONE;
3777 temp |= FDI_LINK_TRAIN_PATTERN_2;
3778 I915_WRITE(reg, temp);
3783 reg = FDI_RX_IIR(pipe);
3784 for (tries = 0; tries < 5; tries++) {
3785 temp = I915_READ(reg);
3786 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
3788 if (temp & FDI_RX_SYMBOL_LOCK) {
3789 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
3790 DRM_DEBUG_KMS("FDI train 2 done.\n");
3795 DRM_ERROR("FDI train 2 fail!\n");
3797 DRM_DEBUG_KMS("FDI train done\n");
3801 static const int snb_b_fdi_train_param[] = {
3802 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
3803 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
3804 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
3805 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
3808 /* The FDI link training functions for SNB/Cougarpoint. */
3809 static void gen6_fdi_link_train(struct intel_crtc *crtc,
3810 const struct intel_crtc_state *crtc_state)
3812 struct drm_device *dev = crtc->base.dev;
3813 struct drm_i915_private *dev_priv = to_i915(dev);
3814 int pipe = crtc->pipe;
3818 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3820 reg = FDI_RX_IMR(pipe);
3821 temp = I915_READ(reg);
3822 temp &= ~FDI_RX_SYMBOL_LOCK;
3823 temp &= ~FDI_RX_BIT_LOCK;
3824 I915_WRITE(reg, temp);
3829 /* enable CPU FDI TX and PCH FDI RX */
3830 reg = FDI_TX_CTL(pipe);
3831 temp = I915_READ(reg);
3832 temp &= ~FDI_DP_PORT_WIDTH_MASK;
3833 temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
3834 temp &= ~FDI_LINK_TRAIN_NONE;
3835 temp |= FDI_LINK_TRAIN_PATTERN_1;
3836 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
3838 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
3839 I915_WRITE(reg, temp | FDI_TX_ENABLE);
3841 I915_WRITE(FDI_RX_MISC(pipe),
3842 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
3844 reg = FDI_RX_CTL(pipe);
3845 temp = I915_READ(reg);
3846 if (HAS_PCH_CPT(dev_priv)) {
3847 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
3848 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
3850 temp &= ~FDI_LINK_TRAIN_NONE;
3851 temp |= FDI_LINK_TRAIN_PATTERN_1;
3853 I915_WRITE(reg, temp | FDI_RX_ENABLE);
3858 for (i = 0; i < 4; i++) {
3859 reg = FDI_TX_CTL(pipe);
3860 temp = I915_READ(reg);
3861 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
3862 temp |= snb_b_fdi_train_param[i];
3863 I915_WRITE(reg, temp);
3868 for (retry = 0; retry < 5; retry++) {
3869 reg = FDI_RX_IIR(pipe);
3870 temp = I915_READ(reg);
3871 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
3872 if (temp & FDI_RX_BIT_LOCK) {
3873 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
3874 DRM_DEBUG_KMS("FDI train 1 done.\n");
3883 DRM_ERROR("FDI train 1 fail!\n");
3886 reg = FDI_TX_CTL(pipe);
3887 temp = I915_READ(reg);
3888 temp &= ~FDI_LINK_TRAIN_NONE;
3889 temp |= FDI_LINK_TRAIN_PATTERN_2;
3890 if (IS_GEN6(dev_priv)) {
3891 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
3893 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
3895 I915_WRITE(reg, temp);
3897 reg = FDI_RX_CTL(pipe);
3898 temp = I915_READ(reg);
3899 if (HAS_PCH_CPT(dev_priv)) {
3900 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
3901 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
3903 temp &= ~FDI_LINK_TRAIN_NONE;
3904 temp |= FDI_LINK_TRAIN_PATTERN_2;
3906 I915_WRITE(reg, temp);
3911 for (i = 0; i < 4; i++) {
3912 reg = FDI_TX_CTL(pipe);
3913 temp = I915_READ(reg);
3914 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
3915 temp |= snb_b_fdi_train_param[i];
3916 I915_WRITE(reg, temp);
3921 for (retry = 0; retry < 5; retry++) {
3922 reg = FDI_RX_IIR(pipe);
3923 temp = I915_READ(reg);
3924 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
3925 if (temp & FDI_RX_SYMBOL_LOCK) {
3926 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
3927 DRM_DEBUG_KMS("FDI train 2 done.\n");
3936 DRM_ERROR("FDI train 2 fail!\n");
3938 DRM_DEBUG_KMS("FDI train done.\n");
3941 /* Manual link training for Ivy Bridge A0 parts */
3942 static void ivb_manual_fdi_link_train(struct intel_crtc *crtc,
3943 const struct intel_crtc_state *crtc_state)
3945 struct drm_device *dev = crtc->base.dev;
3946 struct drm_i915_private *dev_priv = to_i915(dev);
3947 int pipe = crtc->pipe;
3951 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3953 reg = FDI_RX_IMR(pipe);
3954 temp = I915_READ(reg);
3955 temp &= ~FDI_RX_SYMBOL_LOCK;
3956 temp &= ~FDI_RX_BIT_LOCK;
3957 I915_WRITE(reg, temp);
3962 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
3963 I915_READ(FDI_RX_IIR(pipe)));
3965 /* Try each vswing and preemphasis setting twice before moving on */
3966 for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) {
3967 /* disable first in case we need to retry */
3968 reg = FDI_TX_CTL(pipe);
3969 temp = I915_READ(reg);
3970 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
3971 temp &= ~FDI_TX_ENABLE;
3972 I915_WRITE(reg, temp);
3974 reg = FDI_RX_CTL(pipe);
3975 temp = I915_READ(reg);
3976 temp &= ~FDI_LINK_TRAIN_AUTO;
3977 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
3978 temp &= ~FDI_RX_ENABLE;
3979 I915_WRITE(reg, temp);
3981 /* enable CPU FDI TX and PCH FDI RX */
3982 reg = FDI_TX_CTL(pipe);
3983 temp = I915_READ(reg);
3984 temp &= ~FDI_DP_PORT_WIDTH_MASK;
3985 temp |= FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
3986 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
3987 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
3988 temp |= snb_b_fdi_train_param[j/2];
3989 temp |= FDI_COMPOSITE_SYNC;
3990 I915_WRITE(reg, temp | FDI_TX_ENABLE);
3992 I915_WRITE(FDI_RX_MISC(pipe),
3993 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
3995 reg = FDI_RX_CTL(pipe);
3996 temp = I915_READ(reg);
3997 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
3998 temp |= FDI_COMPOSITE_SYNC;
3999 I915_WRITE(reg, temp | FDI_RX_ENABLE);
4002 udelay(1); /* should be 0.5us */
4004 for (i = 0; i < 4; i++) {
4005 reg = FDI_RX_IIR(pipe);
4006 temp = I915_READ(reg);
4007 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
4009 if (temp & FDI_RX_BIT_LOCK ||
4010 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
4011 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
4012 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
4016 udelay(1); /* should be 0.5us */
4019 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2);
4024 reg = FDI_TX_CTL(pipe);
4025 temp = I915_READ(reg);
4026 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
4027 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
4028 I915_WRITE(reg, temp);
4030 reg = FDI_RX_CTL(pipe);
4031 temp = I915_READ(reg);
4032 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
4033 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
4034 I915_WRITE(reg, temp);
4037 udelay(2); /* should be 1.5us */
4039 for (i = 0; i < 4; i++) {
4040 reg = FDI_RX_IIR(pipe);
4041 temp = I915_READ(reg);
4042 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
4044 if (temp & FDI_RX_SYMBOL_LOCK ||
4045 (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) {
4046 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
4047 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
4051 udelay(2); /* should be 1.5us */
4054 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2);
4058 DRM_DEBUG_KMS("FDI train done.\n");
4061 static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
4063 struct drm_device *dev = intel_crtc->base.dev;
4064 struct drm_i915_private *dev_priv = to_i915(dev);
4065 int pipe = intel_crtc->pipe;
4069 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
4070 reg = FDI_RX_CTL(pipe);
4071 temp = I915_READ(reg);
4072 temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
4073 temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes);
4074 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
4075 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
4080 /* Switch from Rawclk to PCDclk */
4081 temp = I915_READ(reg);
4082 I915_WRITE(reg, temp | FDI_PCDCLK);
4087 /* Enable CPU FDI TX PLL, always on for Ironlake */
4088 reg = FDI_TX_CTL(pipe);
4089 temp = I915_READ(reg);
4090 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
4091 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
4098 static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
4100 struct drm_device *dev = intel_crtc->base.dev;
4101 struct drm_i915_private *dev_priv = to_i915(dev);
4102 int pipe = intel_crtc->pipe;
4106 /* Switch from PCDclk to Rawclk */
4107 reg = FDI_RX_CTL(pipe);
4108 temp = I915_READ(reg);
4109 I915_WRITE(reg, temp & ~FDI_PCDCLK);
4111 /* Disable CPU FDI TX PLL */
4112 reg = FDI_TX_CTL(pipe);
4113 temp = I915_READ(reg);
4114 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
4119 reg = FDI_RX_CTL(pipe);
4120 temp = I915_READ(reg);
4121 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
4123 /* Wait for the clocks to turn off. */
4128 static void ironlake_fdi_disable(struct drm_crtc *crtc)
4130 struct drm_device *dev = crtc->dev;
4131 struct drm_i915_private *dev_priv = to_i915(dev);
4132 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4133 int pipe = intel_crtc->pipe;
4137 /* disable CPU FDI tx and PCH FDI rx */
4138 reg = FDI_TX_CTL(pipe);
4139 temp = I915_READ(reg);
4140 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
4143 reg = FDI_RX_CTL(pipe);
4144 temp = I915_READ(reg);
4145 temp &= ~(0x7 << 16);
4146 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
4147 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
4152 /* Ironlake workaround, disable clock pointer after downing FDI */
4153 if (HAS_PCH_IBX(dev_priv))
4154 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
4156 /* still set train pattern 1 */
4157 reg = FDI_TX_CTL(pipe);
4158 temp = I915_READ(reg);
4159 temp &= ~FDI_LINK_TRAIN_NONE;
4160 temp |= FDI_LINK_TRAIN_PATTERN_1;
4161 I915_WRITE(reg, temp);
4163 reg = FDI_RX_CTL(pipe);
4164 temp = I915_READ(reg);
4165 if (HAS_PCH_CPT(dev_priv)) {
4166 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
4167 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
4169 temp &= ~FDI_LINK_TRAIN_NONE;
4170 temp |= FDI_LINK_TRAIN_PATTERN_1;
4172 /* BPC in FDI rx is consistent with that in PIPECONF */
4173 temp &= ~(0x07 << 16);
4174 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
4175 I915_WRITE(reg, temp);
4181 bool intel_has_pending_fb_unpin(struct drm_i915_private *dev_priv)
4183 struct intel_crtc *crtc;
4185 /* Note that we don't need to be called with mode_config.lock here
4186 * as our list of CRTC objects is static for the lifetime of the
4187 * device and so cannot disappear as we iterate. Similarly, we can
4188 * happily treat the predicates as racy, atomic checks as userspace
4189 * cannot claim and pin a new fb without at least acquring the
4190 * struct_mutex and so serialising with us.
4192 for_each_intel_crtc(&dev_priv->drm, crtc) {
4193 if (atomic_read(&crtc->unpin_work_count) == 0)
4196 if (crtc->flip_work)
4197 intel_wait_for_vblank(dev_priv, crtc->pipe);
4205 static void page_flip_completed(struct intel_crtc *intel_crtc)
4207 struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
4208 struct intel_flip_work *work = intel_crtc->flip_work;
4210 intel_crtc->flip_work = NULL;
4213 drm_crtc_send_vblank_event(&intel_crtc->base, work->event);
4215 drm_crtc_vblank_put(&intel_crtc->base);
4217 wake_up_all(&dev_priv->pending_flip_queue);
4218 trace_i915_flip_complete(intel_crtc->plane,
4219 work->pending_flip_obj);
4221 queue_work(dev_priv->wq, &work->unpin_work);
4224 static int intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
4226 struct drm_device *dev = crtc->dev;
4227 struct drm_i915_private *dev_priv = to_i915(dev);
4230 WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
4232 ret = wait_event_interruptible_timeout(
4233 dev_priv->pending_flip_queue,
4234 !intel_crtc_has_pending_flip(crtc),
4241 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4242 struct intel_flip_work *work;
4244 spin_lock_irq(&dev->event_lock);
4245 work = intel_crtc->flip_work;
4246 if (work && !is_mmio_work(work)) {
4247 WARN_ONCE(1, "Removing stuck page flip\n");
4248 page_flip_completed(intel_crtc);
4250 spin_unlock_irq(&dev->event_lock);
4256 void lpt_disable_iclkip(struct drm_i915_private *dev_priv)
4260 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
4262 mutex_lock(&dev_priv->sb_lock);
4264 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
4265 temp |= SBI_SSCCTL_DISABLE;
4266 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
4268 mutex_unlock(&dev_priv->sb_lock);
4271 /* Program iCLKIP clock to the desired frequency */
4272 static void lpt_program_iclkip(struct intel_crtc *crtc)
4274 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
4275 int clock = crtc->config->base.adjusted_mode.crtc_clock;
4276 u32 divsel, phaseinc, auxdiv, phasedir = 0;
4279 lpt_disable_iclkip(dev_priv);
4281 /* The iCLK virtual clock root frequency is in MHz,
4282 * but the adjusted_mode->crtc_clock in in KHz. To get the
4283 * divisors, it is necessary to divide one by another, so we
4284 * convert the virtual clock precision to KHz here for higher
4287 for (auxdiv = 0; auxdiv < 2; auxdiv++) {
4288 u32 iclk_virtual_root_freq = 172800 * 1000;
4289 u32 iclk_pi_range = 64;
4290 u32 desired_divisor;
4292 desired_divisor = DIV_ROUND_CLOSEST(iclk_virtual_root_freq,
4294 divsel = (desired_divisor / iclk_pi_range) - 2;
4295 phaseinc = desired_divisor % iclk_pi_range;
4298 * Near 20MHz is a corner case which is
4299 * out of range for the 7-bit divisor
4305 /* This should not happen with any sane values */
4306 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
4307 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
4308 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
4309 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
4311 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
4318 mutex_lock(&dev_priv->sb_lock);
4320 /* Program SSCDIVINTPHASE6 */
4321 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
4322 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
4323 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
4324 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
4325 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
4326 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
4327 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
4328 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
4330 /* Program SSCAUXDIV */
4331 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
4332 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
4333 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
4334 intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
4336 /* Enable modulator and associated divider */
4337 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
4338 temp &= ~SBI_SSCCTL_DISABLE;
4339 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
4341 mutex_unlock(&dev_priv->sb_lock);
4343 /* Wait for initialization time */
4346 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
4349 int lpt_get_iclkip(struct drm_i915_private *dev_priv)
4351 u32 divsel, phaseinc, auxdiv;
4352 u32 iclk_virtual_root_freq = 172800 * 1000;
4353 u32 iclk_pi_range = 64;
4354 u32 desired_divisor;
4357 if ((I915_READ(PIXCLK_GATE) & PIXCLK_GATE_UNGATE) == 0)
4360 mutex_lock(&dev_priv->sb_lock);
4362 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
4363 if (temp & SBI_SSCCTL_DISABLE) {
4364 mutex_unlock(&dev_priv->sb_lock);
4368 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
4369 divsel = (temp & SBI_SSCDIVINTPHASE_DIVSEL_MASK) >>
4370 SBI_SSCDIVINTPHASE_DIVSEL_SHIFT;
4371 phaseinc = (temp & SBI_SSCDIVINTPHASE_INCVAL_MASK) >>
4372 SBI_SSCDIVINTPHASE_INCVAL_SHIFT;
4374 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
4375 auxdiv = (temp & SBI_SSCAUXDIV_FINALDIV2SEL_MASK) >>
4376 SBI_SSCAUXDIV_FINALDIV2SEL_SHIFT;
4378 mutex_unlock(&dev_priv->sb_lock);
4380 desired_divisor = (divsel + 2) * iclk_pi_range + phaseinc;
4382 return DIV_ROUND_CLOSEST(iclk_virtual_root_freq,
4383 desired_divisor << auxdiv);
4386 static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc,
4387 enum pipe pch_transcoder)
4389 struct drm_device *dev = crtc->base.dev;
4390 struct drm_i915_private *dev_priv = to_i915(dev);
4391 enum transcoder cpu_transcoder = crtc->config->cpu_transcoder;
4393 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder),
4394 I915_READ(HTOTAL(cpu_transcoder)));
4395 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder),
4396 I915_READ(HBLANK(cpu_transcoder)));
4397 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder),
4398 I915_READ(HSYNC(cpu_transcoder)));
4400 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder),
4401 I915_READ(VTOTAL(cpu_transcoder)));
4402 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder),
4403 I915_READ(VBLANK(cpu_transcoder)));
4404 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder),
4405 I915_READ(VSYNC(cpu_transcoder)));
4406 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder),
4407 I915_READ(VSYNCSHIFT(cpu_transcoder)));
4410 static void cpt_set_fdi_bc_bifurcation(struct drm_device *dev, bool enable)
4412 struct drm_i915_private *dev_priv = to_i915(dev);
4415 temp = I915_READ(SOUTH_CHICKEN1);
4416 if (!!(temp & FDI_BC_BIFURCATION_SELECT) == enable)
4419 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
4420 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
4422 temp &= ~FDI_BC_BIFURCATION_SELECT;
4424 temp |= FDI_BC_BIFURCATION_SELECT;
4426 DRM_DEBUG_KMS("%sabling fdi C rx\n", enable ? "en" : "dis");
4427 I915_WRITE(SOUTH_CHICKEN1, temp);
4428 POSTING_READ(SOUTH_CHICKEN1);
4431 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
4433 struct drm_device *dev = intel_crtc->base.dev;
4435 switch (intel_crtc->pipe) {
4439 if (intel_crtc->config->fdi_lanes > 2)
4440 cpt_set_fdi_bc_bifurcation(dev, false);
4442 cpt_set_fdi_bc_bifurcation(dev, true);
4446 cpt_set_fdi_bc_bifurcation(dev, true);
4454 /* Return which DP Port should be selected for Transcoder DP control */
4456 intel_trans_dp_port_sel(struct intel_crtc *crtc)
4458 struct drm_device *dev = crtc->base.dev;
4459 struct intel_encoder *encoder;
4461 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
4462 if (encoder->type == INTEL_OUTPUT_DP ||
4463 encoder->type == INTEL_OUTPUT_EDP)
4464 return enc_to_dig_port(&encoder->base)->port;
4471 * Enable PCH resources required for PCH ports:
4473 * - FDI training & RX/TX
4474 * - update transcoder timings
4475 * - DP transcoding bits
4478 static void ironlake_pch_enable(const struct intel_crtc_state *crtc_state)
4480 struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
4481 struct drm_device *dev = crtc->base.dev;
4482 struct drm_i915_private *dev_priv = to_i915(dev);
4483 int pipe = crtc->pipe;
4486 assert_pch_transcoder_disabled(dev_priv, pipe);
4488 if (IS_IVYBRIDGE(dev_priv))
4489 ivybridge_update_fdi_bc_bifurcation(crtc);
4491 /* Write the TU size bits before fdi link training, so that error
4492 * detection works. */
4493 I915_WRITE(FDI_RX_TUSIZE1(pipe),
4494 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
4496 /* For PCH output, training FDI link */
4497 dev_priv->display.fdi_link_train(crtc, crtc_state);
4499 /* We need to program the right clock selection before writing the pixel
4500 * mutliplier into the DPLL. */
4501 if (HAS_PCH_CPT(dev_priv)) {
4504 temp = I915_READ(PCH_DPLL_SEL);
4505 temp |= TRANS_DPLL_ENABLE(pipe);
4506 sel = TRANS_DPLLB_SEL(pipe);
4507 if (crtc_state->shared_dpll ==
4508 intel_get_shared_dpll_by_id(dev_priv, DPLL_ID_PCH_PLL_B))
4512 I915_WRITE(PCH_DPLL_SEL, temp);
4515 /* XXX: pch pll's can be enabled any time before we enable the PCH
4516 * transcoder, and we actually should do this to not upset any PCH
4517 * transcoder that already use the clock when we share it.
4519 * Note that enable_shared_dpll tries to do the right thing, but
4520 * get_shared_dpll unconditionally resets the pll - we need that to have
4521 * the right LVDS enable sequence. */
4522 intel_enable_shared_dpll(crtc);
4524 /* set transcoder timing, panel must allow it */
4525 assert_panel_unlocked(dev_priv, pipe);
4526 ironlake_pch_transcoder_set_timings(crtc, pipe);
4528 intel_fdi_normal_train(crtc);
4530 /* For PCH DP, enable TRANS_DP_CTL */
4531 if (HAS_PCH_CPT(dev_priv) &&
4532 intel_crtc_has_dp_encoder(crtc_state)) {
4533 const struct drm_display_mode *adjusted_mode =
4534 &crtc_state->base.adjusted_mode;
4535 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
4536 i915_reg_t reg = TRANS_DP_CTL(pipe);
4537 temp = I915_READ(reg);
4538 temp &= ~(TRANS_DP_PORT_SEL_MASK |
4539 TRANS_DP_SYNC_MASK |
4541 temp |= TRANS_DP_OUTPUT_ENABLE;
4542 temp |= bpc << 9; /* same format but at 11:9 */
4544 if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
4545 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
4546 if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
4547 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
4549 switch (intel_trans_dp_port_sel(crtc)) {
4551 temp |= TRANS_DP_PORT_SEL_B;
4554 temp |= TRANS_DP_PORT_SEL_C;
4557 temp |= TRANS_DP_PORT_SEL_D;
4563 I915_WRITE(reg, temp);
4566 ironlake_enable_pch_transcoder(dev_priv, pipe);
4569 static void lpt_pch_enable(const struct intel_crtc_state *crtc_state)
4571 struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
4572 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
4573 enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
4575 assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
4577 lpt_program_iclkip(crtc);
4579 /* Set transcoder timing. */
4580 ironlake_pch_transcoder_set_timings(crtc, PIPE_A);
4582 lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
4585 static void cpt_verify_modeset(struct drm_device *dev, int pipe)
4587 struct drm_i915_private *dev_priv = to_i915(dev);
4588 i915_reg_t dslreg = PIPEDSL(pipe);
4591 temp = I915_READ(dslreg);
4593 if (wait_for(I915_READ(dslreg) != temp, 5)) {
4594 if (wait_for(I915_READ(dslreg) != temp, 5))
4595 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe));
4600 skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach,
4601 unsigned int scaler_user, int *scaler_id,
4602 int src_w, int src_h, int dst_w, int dst_h)
4604 struct intel_crtc_scaler_state *scaler_state =
4605 &crtc_state->scaler_state;
4606 struct intel_crtc *intel_crtc =
4607 to_intel_crtc(crtc_state->base.crtc);
4611 * Src coordinates are already rotated by 270 degrees for
4612 * the 90/270 degree plane rotation cases (to match the
4613 * GTT mapping), hence no need to account for rotation here.
4615 need_scaling = src_w != dst_w || src_h != dst_h;
4618 * if plane is being disabled or scaler is no more required or force detach
4619 * - free scaler binded to this plane/crtc
4620 * - in order to do this, update crtc->scaler_usage
4622 * Here scaler state in crtc_state is set free so that
4623 * scaler can be assigned to other user. Actual register
4624 * update to free the scaler is done in plane/panel-fit programming.
4625 * For this purpose crtc/plane_state->scaler_id isn't reset here.
4627 if (force_detach || !need_scaling) {
4628 if (*scaler_id >= 0) {
4629 scaler_state->scaler_users &= ~(1 << scaler_user);
4630 scaler_state->scalers[*scaler_id].in_use = 0;
4632 DRM_DEBUG_KMS("scaler_user index %u.%u: "
4633 "Staged freeing scaler id %d scaler_users = 0x%x\n",
4634 intel_crtc->pipe, scaler_user, *scaler_id,
4635 scaler_state->scaler_users);
4642 if (src_w < SKL_MIN_SRC_W || src_h < SKL_MIN_SRC_H ||
4643 dst_w < SKL_MIN_DST_W || dst_h < SKL_MIN_DST_H ||
4645 src_w > SKL_MAX_SRC_W || src_h > SKL_MAX_SRC_H ||
4646 dst_w > SKL_MAX_DST_W || dst_h > SKL_MAX_DST_H) {
4647 DRM_DEBUG_KMS("scaler_user index %u.%u: src %ux%u dst %ux%u "
4648 "size is out of scaler range\n",
4649 intel_crtc->pipe, scaler_user, src_w, src_h, dst_w, dst_h);
4653 /* mark this plane as a scaler user in crtc_state */
4654 scaler_state->scaler_users |= (1 << scaler_user);
4655 DRM_DEBUG_KMS("scaler_user index %u.%u: "
4656 "staged scaling request for %ux%u->%ux%u scaler_users = 0x%x\n",
4657 intel_crtc->pipe, scaler_user, src_w, src_h, dst_w, dst_h,
4658 scaler_state->scaler_users);
4664 * skl_update_scaler_crtc - Stages update to scaler state for a given crtc.
4666 * @state: crtc's scaler state
4669 * 0 - scaler_usage updated successfully
4670 * error - requested scaling cannot be supported or other error condition
4672 int skl_update_scaler_crtc(struct intel_crtc_state *state)
4674 const struct drm_display_mode *adjusted_mode = &state->base.adjusted_mode;
4676 return skl_update_scaler(state, !state->base.active, SKL_CRTC_INDEX,
4677 &state->scaler_state.scaler_id,
4678 state->pipe_src_w, state->pipe_src_h,
4679 adjusted_mode->crtc_hdisplay, adjusted_mode->crtc_vdisplay);
4683 * skl_update_scaler_plane - Stages update to scaler state for a given plane.
4685 * @state: crtc's scaler state
4686 * @plane_state: atomic plane state to update
4689 * 0 - scaler_usage updated successfully
4690 * error - requested scaling cannot be supported or other error condition
4692 static int skl_update_scaler_plane(struct intel_crtc_state *crtc_state,
4693 struct intel_plane_state *plane_state)
4696 struct intel_plane *intel_plane =
4697 to_intel_plane(plane_state->base.plane);
4698 struct drm_framebuffer *fb = plane_state->base.fb;
4701 bool force_detach = !fb || !plane_state->base.visible;
4703 ret = skl_update_scaler(crtc_state, force_detach,
4704 drm_plane_index(&intel_plane->base),
4705 &plane_state->scaler_id,
4706 drm_rect_width(&plane_state->base.src) >> 16,
4707 drm_rect_height(&plane_state->base.src) >> 16,
4708 drm_rect_width(&plane_state->base.dst),
4709 drm_rect_height(&plane_state->base.dst));
4711 if (ret || plane_state->scaler_id < 0)
4714 /* check colorkey */
4715 if (plane_state->ckey.flags != I915_SET_COLORKEY_NONE) {
4716 DRM_DEBUG_KMS("[PLANE:%d:%s] scaling with color key not allowed",
4717 intel_plane->base.base.id,
4718 intel_plane->base.name);
4722 /* Check src format */
4723 switch (fb->format->format) {
4724 case DRM_FORMAT_RGB565:
4725 case DRM_FORMAT_XBGR8888:
4726 case DRM_FORMAT_XRGB8888:
4727 case DRM_FORMAT_ABGR8888:
4728 case DRM_FORMAT_ARGB8888:
4729 case DRM_FORMAT_XRGB2101010:
4730 case DRM_FORMAT_XBGR2101010:
4731 case DRM_FORMAT_YUYV:
4732 case DRM_FORMAT_YVYU:
4733 case DRM_FORMAT_UYVY:
4734 case DRM_FORMAT_VYUY:
4737 DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d unsupported scaling format 0x%x\n",
4738 intel_plane->base.base.id, intel_plane->base.name,
4739 fb->base.id, fb->format->format);
4746 static void skylake_scaler_disable(struct intel_crtc *crtc)
4750 for (i = 0; i < crtc->num_scalers; i++)
4751 skl_detach_scaler(crtc, i);
4754 static void skylake_pfit_enable(struct intel_crtc *crtc)
4756 struct drm_device *dev = crtc->base.dev;
4757 struct drm_i915_private *dev_priv = to_i915(dev);
4758 int pipe = crtc->pipe;
4759 struct intel_crtc_scaler_state *scaler_state =
4760 &crtc->config->scaler_state;
4762 if (crtc->config->pch_pfit.enabled) {
4765 if (WARN_ON(crtc->config->scaler_state.scaler_id < 0))
4768 id = scaler_state->scaler_id;
4769 I915_WRITE(SKL_PS_CTRL(pipe, id), PS_SCALER_EN |
4770 PS_FILTER_MEDIUM | scaler_state->scalers[id].mode);
4771 I915_WRITE(SKL_PS_WIN_POS(pipe, id), crtc->config->pch_pfit.pos);
4772 I915_WRITE(SKL_PS_WIN_SZ(pipe, id), crtc->config->pch_pfit.size);
4776 static void ironlake_pfit_enable(struct intel_crtc *crtc)
4778 struct drm_device *dev = crtc->base.dev;
4779 struct drm_i915_private *dev_priv = to_i915(dev);
4780 int pipe = crtc->pipe;
4782 if (crtc->config->pch_pfit.enabled) {
4783 /* Force use of hard-coded filter coefficients
4784 * as some pre-programmed values are broken,
4787 if (IS_IVYBRIDGE(dev_priv) || IS_HASWELL(dev_priv))
4788 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
4789 PF_PIPE_SEL_IVB(pipe));
4791 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
4792 I915_WRITE(PF_WIN_POS(pipe), crtc->config->pch_pfit.pos);
4793 I915_WRITE(PF_WIN_SZ(pipe), crtc->config->pch_pfit.size);
4797 void hsw_enable_ips(struct intel_crtc *crtc)
4799 struct drm_device *dev = crtc->base.dev;
4800 struct drm_i915_private *dev_priv = to_i915(dev);
4802 if (!crtc->config->ips_enabled)
4806 * We can only enable IPS after we enable a plane and wait for a vblank
4807 * This function is called from post_plane_update, which is run after
4811 assert_plane_enabled(dev_priv, crtc->plane);
4812 if (IS_BROADWELL(dev_priv)) {
4813 mutex_lock(&dev_priv->rps.hw_lock);
4814 WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0xc0000000));
4815 mutex_unlock(&dev_priv->rps.hw_lock);
4816 /* Quoting Art Runyan: "its not safe to expect any particular
4817 * value in IPS_CTL bit 31 after enabling IPS through the
4818 * mailbox." Moreover, the mailbox may return a bogus state,
4819 * so we need to just enable it and continue on.
4822 I915_WRITE(IPS_CTL, IPS_ENABLE);
4823 /* The bit only becomes 1 in the next vblank, so this wait here
4824 * is essentially intel_wait_for_vblank. If we don't have this
4825 * and don't wait for vblanks until the end of crtc_enable, then
4826 * the HW state readout code will complain that the expected
4827 * IPS_CTL value is not the one we read. */
4828 if (intel_wait_for_register(dev_priv,
4829 IPS_CTL, IPS_ENABLE, IPS_ENABLE,
4831 DRM_ERROR("Timed out waiting for IPS enable\n");
4835 void hsw_disable_ips(struct intel_crtc *crtc)
4837 struct drm_device *dev = crtc->base.dev;
4838 struct drm_i915_private *dev_priv = to_i915(dev);
4840 if (!crtc->config->ips_enabled)
4843 assert_plane_enabled(dev_priv, crtc->plane);
4844 if (IS_BROADWELL(dev_priv)) {
4845 mutex_lock(&dev_priv->rps.hw_lock);
4846 WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0));
4847 mutex_unlock(&dev_priv->rps.hw_lock);
4848 /* wait for pcode to finish disabling IPS, which may take up to 42ms */
4849 if (intel_wait_for_register(dev_priv,
4850 IPS_CTL, IPS_ENABLE, 0,
4852 DRM_ERROR("Timed out waiting for IPS disable\n");
4854 I915_WRITE(IPS_CTL, 0);
4855 POSTING_READ(IPS_CTL);
4858 /* We need to wait for a vblank before we can disable the plane. */
4859 intel_wait_for_vblank(dev_priv, crtc->pipe);
4862 static void intel_crtc_dpms_overlay_disable(struct intel_crtc *intel_crtc)
4864 if (intel_crtc->overlay) {
4865 struct drm_device *dev = intel_crtc->base.dev;
4866 struct drm_i915_private *dev_priv = to_i915(dev);
4868 mutex_lock(&dev->struct_mutex);
4869 dev_priv->mm.interruptible = false;
4870 (void) intel_overlay_switch_off(intel_crtc->overlay);
4871 dev_priv->mm.interruptible = true;
4872 mutex_unlock(&dev->struct_mutex);
4875 /* Let userspace switch the overlay on again. In most cases userspace
4876 * has to recompute where to put it anyway.
4881 * intel_post_enable_primary - Perform operations after enabling primary plane
4882 * @crtc: the CRTC whose primary plane was just enabled
4884 * Performs potentially sleeping operations that must be done after the primary
4885 * plane is enabled, such as updating FBC and IPS. Note that this may be
4886 * called due to an explicit primary plane update, or due to an implicit
4887 * re-enable that is caused when a sprite plane is updated to no longer
4888 * completely hide the primary plane.
4891 intel_post_enable_primary(struct drm_crtc *crtc)
4893 struct drm_device *dev = crtc->dev;
4894 struct drm_i915_private *dev_priv = to_i915(dev);
4895 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4896 int pipe = intel_crtc->pipe;
4899 * FIXME IPS should be fine as long as one plane is
4900 * enabled, but in practice it seems to have problems
4901 * when going from primary only to sprite only and vice
4904 hsw_enable_ips(intel_crtc);
4907 * Gen2 reports pipe underruns whenever all planes are disabled.
4908 * So don't enable underrun reporting before at least some planes
4910 * FIXME: Need to fix the logic to work when we turn off all planes
4911 * but leave the pipe running.
4913 if (IS_GEN2(dev_priv))
4914 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
4916 /* Underruns don't always raise interrupts, so check manually. */
4917 intel_check_cpu_fifo_underruns(dev_priv);
4918 intel_check_pch_fifo_underruns(dev_priv);
4921 /* FIXME move all this to pre_plane_update() with proper state tracking */
4923 intel_pre_disable_primary(struct drm_crtc *crtc)
4925 struct drm_device *dev = crtc->dev;
4926 struct drm_i915_private *dev_priv = to_i915(dev);
4927 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4928 int pipe = intel_crtc->pipe;
4931 * Gen2 reports pipe underruns whenever all planes are disabled.
4932 * So diasble underrun reporting before all the planes get disabled.
4933 * FIXME: Need to fix the logic to work when we turn off all planes
4934 * but leave the pipe running.
4936 if (IS_GEN2(dev_priv))
4937 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
4940 * FIXME IPS should be fine as long as one plane is
4941 * enabled, but in practice it seems to have problems
4942 * when going from primary only to sprite only and vice
4945 hsw_disable_ips(intel_crtc);
4948 /* FIXME get rid of this and use pre_plane_update */
4950 intel_pre_disable_primary_noatomic(struct drm_crtc *crtc)
4952 struct drm_device *dev = crtc->dev;
4953 struct drm_i915_private *dev_priv = to_i915(dev);
4954 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4955 int pipe = intel_crtc->pipe;
4957 intel_pre_disable_primary(crtc);
4960 * Vblank time updates from the shadow to live plane control register
4961 * are blocked if the memory self-refresh mode is active at that
4962 * moment. So to make sure the plane gets truly disabled, disable
4963 * first the self-refresh mode. The self-refresh enable bit in turn
4964 * will be checked/applied by the HW only at the next frame start
4965 * event which is after the vblank start event, so we need to have a
4966 * wait-for-vblank between disabling the plane and the pipe.
4968 if (HAS_GMCH_DISPLAY(dev_priv) &&
4969 intel_set_memory_cxsr(dev_priv, false))
4970 intel_wait_for_vblank(dev_priv, pipe);
4973 static void intel_post_plane_update(struct intel_crtc_state *old_crtc_state)
4975 struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc);
4976 struct drm_atomic_state *old_state = old_crtc_state->base.state;
4977 struct intel_crtc_state *pipe_config =
4978 to_intel_crtc_state(crtc->base.state);
4979 struct drm_plane *primary = crtc->base.primary;
4980 struct drm_plane_state *old_pri_state =
4981 drm_atomic_get_existing_plane_state(old_state, primary);
4983 intel_frontbuffer_flip(to_i915(crtc->base.dev), pipe_config->fb_bits);
4985 if (pipe_config->update_wm_post && pipe_config->base.active)
4986 intel_update_watermarks(crtc);
4988 if (old_pri_state) {
4989 struct intel_plane_state *primary_state =
4990 to_intel_plane_state(primary->state);
4991 struct intel_plane_state *old_primary_state =
4992 to_intel_plane_state(old_pri_state);
4994 intel_fbc_post_update(crtc);
4996 if (primary_state->base.visible &&
4997 (needs_modeset(&pipe_config->base) ||
4998 !old_primary_state->base.visible))
4999 intel_post_enable_primary(&crtc->base);
5003 static void intel_pre_plane_update(struct intel_crtc_state *old_crtc_state,
5004 struct intel_crtc_state *pipe_config)
5006 struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc);
5007 struct drm_device *dev = crtc->base.dev;
5008 struct drm_i915_private *dev_priv = to_i915(dev);
5009 struct drm_atomic_state *old_state = old_crtc_state->base.state;
5010 struct drm_plane *primary = crtc->base.primary;
5011 struct drm_plane_state *old_pri_state =
5012 drm_atomic_get_existing_plane_state(old_state, primary);
5013 bool modeset = needs_modeset(&pipe_config->base);
5014 struct intel_atomic_state *old_intel_state =
5015 to_intel_atomic_state(old_state);
5017 if (old_pri_state) {
5018 struct intel_plane_state *primary_state =
5019 to_intel_plane_state(primary->state);
5020 struct intel_plane_state *old_primary_state =
5021 to_intel_plane_state(old_pri_state);
5023 intel_fbc_pre_update(crtc, pipe_config, primary_state);
5025 if (old_primary_state->base.visible &&
5026 (modeset || !primary_state->base.visible))
5027 intel_pre_disable_primary(&crtc->base);
5031 * Vblank time updates from the shadow to live plane control register
5032 * are blocked if the memory self-refresh mode is active at that
5033 * moment. So to make sure the plane gets truly disabled, disable
5034 * first the self-refresh mode. The self-refresh enable bit in turn
5035 * will be checked/applied by the HW only at the next frame start
5036 * event which is after the vblank start event, so we need to have a
5037 * wait-for-vblank between disabling the plane and the pipe.
5039 if (HAS_GMCH_DISPLAY(dev_priv) && old_crtc_state->base.active &&
5040 pipe_config->disable_cxsr && intel_set_memory_cxsr(dev_priv, false))
5041 intel_wait_for_vblank(dev_priv, crtc->pipe);
5044 * IVB workaround: must disable low power watermarks for at least
5045 * one frame before enabling scaling. LP watermarks can be re-enabled
5046 * when scaling is disabled.
5048 * WaCxSRDisabledForSpriteScaling:ivb
5050 if (pipe_config->disable_lp_wm && ilk_disable_lp_wm(dev))
5051 intel_wait_for_vblank(dev_priv, crtc->pipe);
5054 * If we're doing a modeset, we're done. No need to do any pre-vblank
5055 * watermark programming here.
5057 if (needs_modeset(&pipe_config->base))
5061 * For platforms that support atomic watermarks, program the
5062 * 'intermediate' watermarks immediately. On pre-gen9 platforms, these
5063 * will be the intermediate values that are safe for both pre- and
5064 * post- vblank; when vblank happens, the 'active' values will be set
5065 * to the final 'target' values and we'll do this again to get the
5066 * optimal watermarks. For gen9+ platforms, the values we program here
5067 * will be the final target values which will get automatically latched
5068 * at vblank time; no further programming will be necessary.
5070 * If a platform hasn't been transitioned to atomic watermarks yet,
5071 * we'll continue to update watermarks the old way, if flags tell
5074 if (dev_priv->display.initial_watermarks != NULL)
5075 dev_priv->display.initial_watermarks(old_intel_state,
5077 else if (pipe_config->update_wm_pre)
5078 intel_update_watermarks(crtc);
5081 static void intel_crtc_disable_planes(struct drm_crtc *crtc, unsigned plane_mask)
5083 struct drm_device *dev = crtc->dev;
5084 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5085 struct drm_plane *p;
5086 int pipe = intel_crtc->pipe;
5088 intel_crtc_dpms_overlay_disable(intel_crtc);
5090 drm_for_each_plane_mask(p, dev, plane_mask)
5091 to_intel_plane(p)->disable_plane(p, crtc);
5094 * FIXME: Once we grow proper nuclear flip support out of this we need
5095 * to compute the mask of flip planes precisely. For the time being
5096 * consider this a flip to a NULL plane.
5098 intel_frontbuffer_flip(to_i915(dev), INTEL_FRONTBUFFER_ALL_MASK(pipe));
5101 static void intel_encoders_pre_pll_enable(struct drm_crtc *crtc,
5102 struct intel_crtc_state *crtc_state,
5103 struct drm_atomic_state *old_state)
5105 struct drm_connector_state *conn_state;
5106 struct drm_connector *conn;
5109 for_each_new_connector_in_state(old_state, conn, conn_state, i) {
5110 struct intel_encoder *encoder =
5111 to_intel_encoder(conn_state->best_encoder);
5113 if (conn_state->crtc != crtc)
5116 if (encoder->pre_pll_enable)
5117 encoder->pre_pll_enable(encoder, crtc_state, conn_state);
5121 static void intel_encoders_pre_enable(struct drm_crtc *crtc,
5122 struct intel_crtc_state *crtc_state,
5123 struct drm_atomic_state *old_state)
5125 struct drm_connector_state *conn_state;
5126 struct drm_connector *conn;
5129 for_each_new_connector_in_state(old_state, conn, conn_state, i) {
5130 struct intel_encoder *encoder =
5131 to_intel_encoder(conn_state->best_encoder);
5133 if (conn_state->crtc != crtc)
5136 if (encoder->pre_enable)
5137 encoder->pre_enable(encoder, crtc_state, conn_state);
5141 static void intel_encoders_enable(struct drm_crtc *crtc,
5142 struct intel_crtc_state *crtc_state,
5143 struct drm_atomic_state *old_state)
5145 struct drm_connector_state *conn_state;
5146 struct drm_connector *conn;
5149 for_each_new_connector_in_state(old_state, conn, conn_state, i) {
5150 struct intel_encoder *encoder =
5151 to_intel_encoder(conn_state->best_encoder);
5153 if (conn_state->crtc != crtc)
5156 encoder->enable(encoder, crtc_state, conn_state);
5157 intel_opregion_notify_encoder(encoder, true);
5161 static void intel_encoders_disable(struct drm_crtc *crtc,
5162 struct intel_crtc_state *old_crtc_state,
5163 struct drm_atomic_state *old_state)
5165 struct drm_connector_state *old_conn_state;
5166 struct drm_connector *conn;
5169 for_each_old_connector_in_state(old_state, conn, old_conn_state, i) {
5170 struct intel_encoder *encoder =
5171 to_intel_encoder(old_conn_state->best_encoder);
5173 if (old_conn_state->crtc != crtc)
5176 intel_opregion_notify_encoder(encoder, false);
5177 encoder->disable(encoder, old_crtc_state, old_conn_state);
5181 static void intel_encoders_post_disable(struct drm_crtc *crtc,
5182 struct intel_crtc_state *old_crtc_state,
5183 struct drm_atomic_state *old_state)
5185 struct drm_connector_state *old_conn_state;
5186 struct drm_connector *conn;
5189 for_each_old_connector_in_state(old_state, conn, old_conn_state, i) {
5190 struct intel_encoder *encoder =
5191 to_intel_encoder(old_conn_state->best_encoder);
5193 if (old_conn_state->crtc != crtc)
5196 if (encoder->post_disable)
5197 encoder->post_disable(encoder, old_crtc_state, old_conn_state);
5201 static void intel_encoders_post_pll_disable(struct drm_crtc *crtc,
5202 struct intel_crtc_state *old_crtc_state,
5203 struct drm_atomic_state *old_state)
5205 struct drm_connector_state *old_conn_state;
5206 struct drm_connector *conn;
5209 for_each_old_connector_in_state(old_state, conn, old_conn_state, i) {
5210 struct intel_encoder *encoder =
5211 to_intel_encoder(old_conn_state->best_encoder);
5213 if (old_conn_state->crtc != crtc)
5216 if (encoder->post_pll_disable)
5217 encoder->post_pll_disable(encoder, old_crtc_state, old_conn_state);
5221 static void ironlake_crtc_enable(struct intel_crtc_state *pipe_config,
5222 struct drm_atomic_state *old_state)
5224 struct drm_crtc *crtc = pipe_config->base.crtc;
5225 struct drm_device *dev = crtc->dev;
5226 struct drm_i915_private *dev_priv = to_i915(dev);
5227 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5228 int pipe = intel_crtc->pipe;
5229 struct intel_atomic_state *old_intel_state =
5230 to_intel_atomic_state(old_state);
5232 if (WARN_ON(intel_crtc->active))
5236 * Sometimes spurious CPU pipe underruns happen during FDI
5237 * training, at least with VGA+HDMI cloning. Suppress them.
5239 * On ILK we get an occasional spurious CPU pipe underruns
5240 * between eDP port A enable and vdd enable. Also PCH port
5241 * enable seems to result in the occasional CPU pipe underrun.
5243 * Spurious PCH underruns also occur during PCH enabling.
5245 if (intel_crtc->config->has_pch_encoder || IS_GEN5(dev_priv))
5246 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
5247 if (intel_crtc->config->has_pch_encoder)
5248 intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false);
5250 if (intel_crtc->config->has_pch_encoder)
5251 intel_prepare_shared_dpll(intel_crtc);
5253 if (intel_crtc_has_dp_encoder(intel_crtc->config))
5254 intel_dp_set_m_n(intel_crtc, M1_N1);
5256 intel_set_pipe_timings(intel_crtc);
5257 intel_set_pipe_src_size(intel_crtc);
5259 if (intel_crtc->config->has_pch_encoder) {
5260 intel_cpu_transcoder_set_m_n(intel_crtc,
5261 &intel_crtc->config->fdi_m_n, NULL);
5264 ironlake_set_pipeconf(crtc);
5266 intel_crtc->active = true;
5268 intel_encoders_pre_enable(crtc, pipe_config, old_state);
5270 if (intel_crtc->config->has_pch_encoder) {
5271 /* Note: FDI PLL enabling _must_ be done before we enable the
5272 * cpu pipes, hence this is separate from all the other fdi/pch
5274 ironlake_fdi_pll_enable(intel_crtc);
5276 assert_fdi_tx_disabled(dev_priv, pipe);
5277 assert_fdi_rx_disabled(dev_priv, pipe);
5280 ironlake_pfit_enable(intel_crtc);
5283 * On ILK+ LUT must be loaded before the pipe is running but with
5286 intel_color_load_luts(&pipe_config->base);
5288 if (dev_priv->display.initial_watermarks != NULL)
5289 dev_priv->display.initial_watermarks(old_intel_state, intel_crtc->config);
5290 intel_enable_pipe(intel_crtc);
5292 if (intel_crtc->config->has_pch_encoder)
5293 ironlake_pch_enable(pipe_config);
5295 assert_vblank_disabled(crtc);
5296 drm_crtc_vblank_on(crtc);
5298 intel_encoders_enable(crtc, pipe_config, old_state);
5300 if (HAS_PCH_CPT(dev_priv))
5301 cpt_verify_modeset(dev, intel_crtc->pipe);
5303 /* Must wait for vblank to avoid spurious PCH FIFO underruns */
5304 if (intel_crtc->config->has_pch_encoder)
5305 intel_wait_for_vblank(dev_priv, pipe);
5306 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
5307 intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true);
5310 /* IPS only exists on ULT machines and is tied to pipe A. */
5311 static bool hsw_crtc_supports_ips(struct intel_crtc *crtc)
5313 return HAS_IPS(to_i915(crtc->base.dev)) && crtc->pipe == PIPE_A;
5316 static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
5317 struct drm_atomic_state *old_state)
5319 struct drm_crtc *crtc = pipe_config->base.crtc;
5320 struct drm_i915_private *dev_priv = to_i915(crtc->dev);
5321 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5322 int pipe = intel_crtc->pipe, hsw_workaround_pipe;
5323 enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
5324 struct intel_atomic_state *old_intel_state =
5325 to_intel_atomic_state(old_state);
5327 if (WARN_ON(intel_crtc->active))
5330 if (intel_crtc->config->has_pch_encoder)
5331 intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
5334 intel_encoders_pre_pll_enable(crtc, pipe_config, old_state);
5336 if (intel_crtc->config->shared_dpll)
5337 intel_enable_shared_dpll(intel_crtc);
5339 if (intel_crtc_has_dp_encoder(intel_crtc->config))
5340 intel_dp_set_m_n(intel_crtc, M1_N1);
5342 if (!transcoder_is_dsi(cpu_transcoder))
5343 intel_set_pipe_timings(intel_crtc);
5345 intel_set_pipe_src_size(intel_crtc);
5347 if (cpu_transcoder != TRANSCODER_EDP &&
5348 !transcoder_is_dsi(cpu_transcoder)) {
5349 I915_WRITE(PIPE_MULT(cpu_transcoder),
5350 intel_crtc->config->pixel_multiplier - 1);
5353 if (intel_crtc->config->has_pch_encoder) {
5354 intel_cpu_transcoder_set_m_n(intel_crtc,
5355 &intel_crtc->config->fdi_m_n, NULL);
5358 if (!transcoder_is_dsi(cpu_transcoder))
5359 haswell_set_pipeconf(crtc);
5361 haswell_set_pipemisc(crtc);
5363 intel_color_set_csc(&pipe_config->base);
5365 intel_crtc->active = true;
5367 if (intel_crtc->config->has_pch_encoder)
5368 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
5370 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
5372 intel_encoders_pre_enable(crtc, pipe_config, old_state);
5374 if (intel_crtc->config->has_pch_encoder)
5375 dev_priv->display.fdi_link_train(intel_crtc, pipe_config);
5377 if (!transcoder_is_dsi(cpu_transcoder))
5378 intel_ddi_enable_pipe_clock(pipe_config);
5380 if (INTEL_GEN(dev_priv) >= 9)
5381 skylake_pfit_enable(intel_crtc);
5383 ironlake_pfit_enable(intel_crtc);
5386 * On ILK+ LUT must be loaded before the pipe is running but with
5389 intel_color_load_luts(&pipe_config->base);
5391 intel_ddi_set_pipe_settings(pipe_config);
5392 if (!transcoder_is_dsi(cpu_transcoder))
5393 intel_ddi_enable_transcoder_func(pipe_config);
5395 if (dev_priv->display.initial_watermarks != NULL)
5396 dev_priv->display.initial_watermarks(old_intel_state, pipe_config);
5398 /* XXX: Do the pipe assertions at the right place for BXT DSI. */
5399 if (!transcoder_is_dsi(cpu_transcoder))
5400 intel_enable_pipe(intel_crtc);
5402 if (intel_crtc->config->has_pch_encoder)
5403 lpt_pch_enable(pipe_config);
5405 if (intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_DP_MST))
5406 intel_ddi_set_vc_payload_alloc(pipe_config, true);
5408 assert_vblank_disabled(crtc);
5409 drm_crtc_vblank_on(crtc);
5411 intel_encoders_enable(crtc, pipe_config, old_state);
5413 if (intel_crtc->config->has_pch_encoder) {
5414 intel_wait_for_vblank(dev_priv, pipe);
5415 intel_wait_for_vblank(dev_priv, pipe);
5416 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
5417 intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
5421 /* If we change the relative order between pipe/planes enabling, we need
5422 * to change the workaround. */
5423 hsw_workaround_pipe = pipe_config->hsw_workaround_pipe;
5424 if (IS_HASWELL(dev_priv) && hsw_workaround_pipe != INVALID_PIPE) {
5425 intel_wait_for_vblank(dev_priv, hsw_workaround_pipe);
5426 intel_wait_for_vblank(dev_priv, hsw_workaround_pipe);
5430 static void ironlake_pfit_disable(struct intel_crtc *crtc, bool force)
5432 struct drm_device *dev = crtc->base.dev;
5433 struct drm_i915_private *dev_priv = to_i915(dev);
5434 int pipe = crtc->pipe;
5436 /* To avoid upsetting the power well on haswell only disable the pfit if
5437 * it's in use. The hw state code will make sure we get this right. */
5438 if (force || crtc->config->pch_pfit.enabled) {
5439 I915_WRITE(PF_CTL(pipe), 0);
5440 I915_WRITE(PF_WIN_POS(pipe), 0);
5441 I915_WRITE(PF_WIN_SZ(pipe), 0);
5445 static void ironlake_crtc_disable(struct intel_crtc_state *old_crtc_state,
5446 struct drm_atomic_state *old_state)
5448 struct drm_crtc *crtc = old_crtc_state->base.crtc;
5449 struct drm_device *dev = crtc->dev;
5450 struct drm_i915_private *dev_priv = to_i915(dev);
5451 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5452 int pipe = intel_crtc->pipe;
5455 * Sometimes spurious CPU pipe underruns happen when the
5456 * pipe is already disabled, but FDI RX/TX is still enabled.
5457 * Happens at least with VGA+HDMI cloning. Suppress them.
5459 if (intel_crtc->config->has_pch_encoder) {
5460 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
5461 intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false);
5464 intel_encoders_disable(crtc, old_crtc_state, old_state);
5466 drm_crtc_vblank_off(crtc);
5467 assert_vblank_disabled(crtc);
5469 intel_disable_pipe(intel_crtc);
5471 ironlake_pfit_disable(intel_crtc, false);
5473 if (intel_crtc->config->has_pch_encoder)
5474 ironlake_fdi_disable(crtc);
5476 intel_encoders_post_disable(crtc, old_crtc_state, old_state);
5478 if (intel_crtc->config->has_pch_encoder) {
5479 ironlake_disable_pch_transcoder(dev_priv, pipe);
5481 if (HAS_PCH_CPT(dev_priv)) {
5485 /* disable TRANS_DP_CTL */
5486 reg = TRANS_DP_CTL(pipe);
5487 temp = I915_READ(reg);
5488 temp &= ~(TRANS_DP_OUTPUT_ENABLE |
5489 TRANS_DP_PORT_SEL_MASK);
5490 temp |= TRANS_DP_PORT_SEL_NONE;
5491 I915_WRITE(reg, temp);
5493 /* disable DPLL_SEL */
5494 temp = I915_READ(PCH_DPLL_SEL);
5495 temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe));
5496 I915_WRITE(PCH_DPLL_SEL, temp);
5499 ironlake_fdi_pll_disable(intel_crtc);
5502 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
5503 intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true);
5506 static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
5507 struct drm_atomic_state *old_state)
5509 struct drm_crtc *crtc = old_crtc_state->base.crtc;
5510 struct drm_i915_private *dev_priv = to_i915(crtc->dev);
5511 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5512 enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
5514 if (intel_crtc->config->has_pch_encoder)
5515 intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
5518 intel_encoders_disable(crtc, old_crtc_state, old_state);
5520 drm_crtc_vblank_off(crtc);
5521 assert_vblank_disabled(crtc);
5523 /* XXX: Do the pipe assertions at the right place for BXT DSI. */
5524 if (!transcoder_is_dsi(cpu_transcoder))
5525 intel_disable_pipe(intel_crtc);
5527 if (intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_DP_MST))
5528 intel_ddi_set_vc_payload_alloc(intel_crtc->config, false);
5530 if (!transcoder_is_dsi(cpu_transcoder))
5531 intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
5533 if (INTEL_GEN(dev_priv) >= 9)
5534 skylake_scaler_disable(intel_crtc);
5536 ironlake_pfit_disable(intel_crtc, false);
5538 if (!transcoder_is_dsi(cpu_transcoder))
5539 intel_ddi_disable_pipe_clock(intel_crtc->config);
5541 intel_encoders_post_disable(crtc, old_crtc_state, old_state);
5543 if (old_crtc_state->has_pch_encoder)
5544 intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
5548 static void i9xx_pfit_enable(struct intel_crtc *crtc)
5550 struct drm_device *dev = crtc->base.dev;
5551 struct drm_i915_private *dev_priv = to_i915(dev);
5552 struct intel_crtc_state *pipe_config = crtc->config;
5554 if (!pipe_config->gmch_pfit.control)
5558 * The panel fitter should only be adjusted whilst the pipe is disabled,
5559 * according to register description and PRM.
5561 WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
5562 assert_pipe_disabled(dev_priv, crtc->pipe);
5564 I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios);
5565 I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control);
5567 /* Border color in case we don't scale up to the full screen. Black by
5568 * default, change to something else for debugging. */
5569 I915_WRITE(BCLRPAT(crtc->pipe), 0);
5572 enum intel_display_power_domain intel_port_to_power_domain(enum port port)
5576 return POWER_DOMAIN_PORT_DDI_A_LANES;
5578 return POWER_DOMAIN_PORT_DDI_B_LANES;
5580 return POWER_DOMAIN_PORT_DDI_C_LANES;
5582 return POWER_DOMAIN_PORT_DDI_D_LANES;
5584 return POWER_DOMAIN_PORT_DDI_E_LANES;
5587 return POWER_DOMAIN_PORT_OTHER;
5591 static u64 get_crtc_power_domains(struct drm_crtc *crtc,
5592 struct intel_crtc_state *crtc_state)
5594 struct drm_device *dev = crtc->dev;
5595 struct drm_i915_private *dev_priv = to_i915(dev);
5596 struct drm_encoder *encoder;
5597 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5598 enum pipe pipe = intel_crtc->pipe;
5600 enum transcoder transcoder = crtc_state->cpu_transcoder;
5602 if (!crtc_state->base.active)
5605 mask = BIT(POWER_DOMAIN_PIPE(pipe));
5606 mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder));
5607 if (crtc_state->pch_pfit.enabled ||
5608 crtc_state->pch_pfit.force_thru)
5609 mask |= BIT_ULL(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe));
5611 drm_for_each_encoder_mask(encoder, dev, crtc_state->base.encoder_mask) {
5612 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
5614 mask |= BIT_ULL(intel_encoder->power_domain);
5617 if (HAS_DDI(dev_priv) && crtc_state->has_audio)
5618 mask |= BIT(POWER_DOMAIN_AUDIO);
5620 if (crtc_state->shared_dpll)
5621 mask |= BIT_ULL(POWER_DOMAIN_PLLS);
5627 modeset_get_crtc_power_domains(struct drm_crtc *crtc,
5628 struct intel_crtc_state *crtc_state)
5630 struct drm_i915_private *dev_priv = to_i915(crtc->dev);
5631 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5632 enum intel_display_power_domain domain;
5633 u64 domains, new_domains, old_domains;
5635 old_domains = intel_crtc->enabled_power_domains;
5636 intel_crtc->enabled_power_domains = new_domains =
5637 get_crtc_power_domains(crtc, crtc_state);
5639 domains = new_domains & ~old_domains;
5641 for_each_power_domain(domain, domains)
5642 intel_display_power_get(dev_priv, domain);
5644 return old_domains & ~new_domains;
5647 static void modeset_put_power_domains(struct drm_i915_private *dev_priv,
5650 enum intel_display_power_domain domain;
5652 for_each_power_domain(domain, domains)
5653 intel_display_power_put(dev_priv, domain);
5656 static void valleyview_crtc_enable(struct intel_crtc_state *pipe_config,
5657 struct drm_atomic_state *old_state)
5659 struct intel_atomic_state *old_intel_state =
5660 to_intel_atomic_state(old_state);
5661 struct drm_crtc *crtc = pipe_config->base.crtc;
5662 struct drm_device *dev = crtc->dev;
5663 struct drm_i915_private *dev_priv = to_i915(dev);
5664 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5665 int pipe = intel_crtc->pipe;
5667 if (WARN_ON(intel_crtc->active))
5670 if (intel_crtc_has_dp_encoder(intel_crtc->config))
5671 intel_dp_set_m_n(intel_crtc, M1_N1);
5673 intel_set_pipe_timings(intel_crtc);
5674 intel_set_pipe_src_size(intel_crtc);
5676 if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) {
5677 struct drm_i915_private *dev_priv = to_i915(dev);
5679 I915_WRITE(CHV_BLEND(pipe), CHV_BLEND_LEGACY);
5680 I915_WRITE(CHV_CANVAS(pipe), 0);
5683 i9xx_set_pipeconf(intel_crtc);
5685 intel_crtc->active = true;
5687 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
5689 intel_encoders_pre_pll_enable(crtc, pipe_config, old_state);
5691 if (IS_CHERRYVIEW(dev_priv)) {
5692 chv_prepare_pll(intel_crtc, intel_crtc->config);
5693 chv_enable_pll(intel_crtc, intel_crtc->config);
5695 vlv_prepare_pll(intel_crtc, intel_crtc->config);
5696 vlv_enable_pll(intel_crtc, intel_crtc->config);
5699 intel_encoders_pre_enable(crtc, pipe_config, old_state);
5701 i9xx_pfit_enable(intel_crtc);
5703 intel_color_load_luts(&pipe_config->base);
5705 dev_priv->display.initial_watermarks(old_intel_state,
5707 intel_enable_pipe(intel_crtc);
5709 assert_vblank_disabled(crtc);
5710 drm_crtc_vblank_on(crtc);
5712 intel_encoders_enable(crtc, pipe_config, old_state);
5715 static void i9xx_set_pll_dividers(struct intel_crtc *crtc)
5717 struct drm_device *dev = crtc->base.dev;
5718 struct drm_i915_private *dev_priv = to_i915(dev);
5720 I915_WRITE(FP0(crtc->pipe), crtc->config->dpll_hw_state.fp0);
5721 I915_WRITE(FP1(crtc->pipe), crtc->config->dpll_hw_state.fp1);
5724 static void i9xx_crtc_enable(struct intel_crtc_state *pipe_config,
5725 struct drm_atomic_state *old_state)
5727 struct drm_crtc *crtc = pipe_config->base.crtc;
5728 struct drm_device *dev = crtc->dev;
5729 struct drm_i915_private *dev_priv = to_i915(dev);
5730 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5731 enum pipe pipe = intel_crtc->pipe;
5733 if (WARN_ON(intel_crtc->active))
5736 i9xx_set_pll_dividers(intel_crtc);
5738 if (intel_crtc_has_dp_encoder(intel_crtc->config))
5739 intel_dp_set_m_n(intel_crtc, M1_N1);
5741 intel_set_pipe_timings(intel_crtc);
5742 intel_set_pipe_src_size(intel_crtc);
5744 i9xx_set_pipeconf(intel_crtc);
5746 intel_crtc->active = true;
5748 if (!IS_GEN2(dev_priv))
5749 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
5751 intel_encoders_pre_enable(crtc, pipe_config, old_state);
5753 i9xx_enable_pll(intel_crtc);
5755 i9xx_pfit_enable(intel_crtc);
5757 intel_color_load_luts(&pipe_config->base);
5759 intel_update_watermarks(intel_crtc);
5760 intel_enable_pipe(intel_crtc);
5762 assert_vblank_disabled(crtc);
5763 drm_crtc_vblank_on(crtc);
5765 intel_encoders_enable(crtc, pipe_config, old_state);
5768 static void i9xx_pfit_disable(struct intel_crtc *crtc)
5770 struct drm_device *dev = crtc->base.dev;
5771 struct drm_i915_private *dev_priv = to_i915(dev);
5773 if (!crtc->config->gmch_pfit.control)
5776 assert_pipe_disabled(dev_priv, crtc->pipe);
5778 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
5779 I915_READ(PFIT_CONTROL));
5780 I915_WRITE(PFIT_CONTROL, 0);
5783 static void i9xx_crtc_disable(struct intel_crtc_state *old_crtc_state,
5784 struct drm_atomic_state *old_state)
5786 struct drm_crtc *crtc = old_crtc_state->base.crtc;
5787 struct drm_device *dev = crtc->dev;
5788 struct drm_i915_private *dev_priv = to_i915(dev);
5789 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5790 int pipe = intel_crtc->pipe;
5793 * On gen2 planes are double buffered but the pipe isn't, so we must
5794 * wait for planes to fully turn off before disabling the pipe.
5796 if (IS_GEN2(dev_priv))
5797 intel_wait_for_vblank(dev_priv, pipe);
5799 intel_encoders_disable(crtc, old_crtc_state, old_state);
5801 drm_crtc_vblank_off(crtc);
5802 assert_vblank_disabled(crtc);
5804 intel_disable_pipe(intel_crtc);
5806 i9xx_pfit_disable(intel_crtc);
5808 intel_encoders_post_disable(crtc, old_crtc_state, old_state);
5810 if (!intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_DSI)) {
5811 if (IS_CHERRYVIEW(dev_priv))
5812 chv_disable_pll(dev_priv, pipe);
5813 else if (IS_VALLEYVIEW(dev_priv))
5814 vlv_disable_pll(dev_priv, pipe);
5816 i9xx_disable_pll(intel_crtc);
5819 intel_encoders_post_pll_disable(crtc, old_crtc_state, old_state);
5821 if (!IS_GEN2(dev_priv))
5822 intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
5824 if (!dev_priv->display.initial_watermarks)
5825 intel_update_watermarks(intel_crtc);
5828 static void intel_crtc_disable_noatomic(struct drm_crtc *crtc)
5830 struct intel_encoder *encoder;
5831 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5832 struct drm_i915_private *dev_priv = to_i915(crtc->dev);
5833 enum intel_display_power_domain domain;
5835 struct drm_atomic_state *state;
5836 struct intel_crtc_state *crtc_state;
5839 if (!intel_crtc->active)
5842 if (crtc->primary->state->visible) {
5843 WARN_ON(intel_crtc->flip_work);
5845 intel_pre_disable_primary_noatomic(crtc);
5847 intel_crtc_disable_planes(crtc, 1 << drm_plane_index(crtc->primary));
5848 crtc->primary->state->visible = false;
5851 state = drm_atomic_state_alloc(crtc->dev);
5853 DRM_DEBUG_KMS("failed to disable [CRTC:%d:%s], out of memory",
5854 crtc->base.id, crtc->name);
5858 state->acquire_ctx = crtc->dev->mode_config.acquire_ctx;
5860 /* Everything's already locked, -EDEADLK can't happen. */
5861 crtc_state = intel_atomic_get_crtc_state(state, intel_crtc);
5862 ret = drm_atomic_add_affected_connectors(state, crtc);
5864 WARN_ON(IS_ERR(crtc_state) || ret);
5866 dev_priv->display.crtc_disable(crtc_state, state);
5868 drm_atomic_state_put(state);
5870 DRM_DEBUG_KMS("[CRTC:%d:%s] hw state adjusted, was enabled, now disabled\n",
5871 crtc->base.id, crtc->name);
5873 WARN_ON(drm_atomic_set_mode_for_crtc(crtc->state, NULL) < 0);
5874 crtc->state->active = false;
5875 intel_crtc->active = false;
5876 crtc->enabled = false;
5877 crtc->state->connector_mask = 0;
5878 crtc->state->encoder_mask = 0;
5880 for_each_encoder_on_crtc(crtc->dev, crtc, encoder)
5881 encoder->base.crtc = NULL;
5883 intel_fbc_disable(intel_crtc);
5884 intel_update_watermarks(intel_crtc);
5885 intel_disable_shared_dpll(intel_crtc);
5887 domains = intel_crtc->enabled_power_domains;
5888 for_each_power_domain(domain, domains)
5889 intel_display_power_put(dev_priv, domain);
5890 intel_crtc->enabled_power_domains = 0;
5892 dev_priv->active_crtcs &= ~(1 << intel_crtc->pipe);
5893 dev_priv->min_pixclk[intel_crtc->pipe] = 0;
5897 * turn all crtc's off, but do not adjust state
5898 * This has to be paired with a call to intel_modeset_setup_hw_state.
5900 int intel_display_suspend(struct drm_device *dev)
5902 struct drm_i915_private *dev_priv = to_i915(dev);
5903 struct drm_atomic_state *state;
5906 state = drm_atomic_helper_suspend(dev);
5907 ret = PTR_ERR_OR_ZERO(state);
5909 DRM_ERROR("Suspending crtc's failed with %i\n", ret);
5911 dev_priv->modeset_restore_state = state;
5915 void intel_encoder_destroy(struct drm_encoder *encoder)
5917 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
5919 drm_encoder_cleanup(encoder);
5920 kfree(intel_encoder);
5923 /* Cross check the actual hw state with our own modeset state tracking (and it's
5924 * internal consistency). */
5925 static void intel_connector_verify_state(struct intel_connector *connector)
5927 struct drm_crtc *crtc = connector->base.state->crtc;
5929 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
5930 connector->base.base.id,
5931 connector->base.name);
5933 if (connector->get_hw_state(connector)) {
5934 struct intel_encoder *encoder = connector->encoder;
5935 struct drm_connector_state *conn_state = connector->base.state;
5937 I915_STATE_WARN(!crtc,
5938 "connector enabled without attached crtc\n");
5943 I915_STATE_WARN(!crtc->state->active,
5944 "connector is active, but attached crtc isn't\n");
5946 if (!encoder || encoder->type == INTEL_OUTPUT_DP_MST)
5949 I915_STATE_WARN(conn_state->best_encoder != &encoder->base,
5950 "atomic encoder doesn't match attached encoder\n");
5952 I915_STATE_WARN(conn_state->crtc != encoder->base.crtc,
5953 "attached encoder crtc differs from connector crtc\n");
5955 I915_STATE_WARN(crtc && crtc->state->active,
5956 "attached crtc is active, but connector isn't\n");
5957 I915_STATE_WARN(!crtc && connector->base.state->best_encoder,
5958 "best encoder set without crtc!\n");
5962 int intel_connector_init(struct intel_connector *connector)
5964 drm_atomic_helper_connector_reset(&connector->base);
5966 if (!connector->base.state)
5972 struct intel_connector *intel_connector_alloc(void)
5974 struct intel_connector *connector;
5976 connector = kzalloc(sizeof *connector, GFP_KERNEL);
5980 if (intel_connector_init(connector) < 0) {
5988 /* Simple connector->get_hw_state implementation for encoders that support only
5989 * one connector and no cloning and hence the encoder state determines the state
5990 * of the connector. */
5991 bool intel_connector_get_hw_state(struct intel_connector *connector)
5994 struct intel_encoder *encoder = connector->encoder;
5996 return encoder->get_hw_state(encoder, &pipe);
5999 static int pipe_required_fdi_lanes(struct intel_crtc_state *crtc_state)
6001 if (crtc_state->base.enable && crtc_state->has_pch_encoder)
6002 return crtc_state->fdi_lanes;
6007 static int ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
6008 struct intel_crtc_state *pipe_config)
6010 struct drm_i915_private *dev_priv = to_i915(dev);
6011 struct drm_atomic_state *state = pipe_config->base.state;
6012 struct intel_crtc *other_crtc;
6013 struct intel_crtc_state *other_crtc_state;
6015 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
6016 pipe_name(pipe), pipe_config->fdi_lanes);
6017 if (pipe_config->fdi_lanes > 4) {
6018 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
6019 pipe_name(pipe), pipe_config->fdi_lanes);
6023 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
6024 if (pipe_config->fdi_lanes > 2) {
6025 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
6026 pipe_config->fdi_lanes);
6033 if (INTEL_INFO(dev_priv)->num_pipes == 2)
6036 /* Ivybridge 3 pipe is really complicated */
6041 if (pipe_config->fdi_lanes <= 2)
6044 other_crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_C);
6046 intel_atomic_get_crtc_state(state, other_crtc);
6047 if (IS_ERR(other_crtc_state))
6048 return PTR_ERR(other_crtc_state);
6050 if (pipe_required_fdi_lanes(other_crtc_state) > 0) {
6051 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
6052 pipe_name(pipe), pipe_config->fdi_lanes);
6057 if (pipe_config->fdi_lanes > 2) {
6058 DRM_DEBUG_KMS("only 2 lanes on pipe %c: required %i lanes\n",
6059 pipe_name(pipe), pipe_config->fdi_lanes);
6063 other_crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_B);
6065 intel_atomic_get_crtc_state(state, other_crtc);
6066 if (IS_ERR(other_crtc_state))
6067 return PTR_ERR(other_crtc_state);
6069 if (pipe_required_fdi_lanes(other_crtc_state) > 2) {
6070 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
6080 static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc,
6081 struct intel_crtc_state *pipe_config)
6083 struct drm_device *dev = intel_crtc->base.dev;
6084 const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
6085 int lane, link_bw, fdi_dotclock, ret;
6086 bool needs_recompute = false;
6089 /* FDI is a binary signal running at ~2.7GHz, encoding
6090 * each output octet as 10 bits. The actual frequency
6091 * is stored as a divider into a 100MHz clock, and the
6092 * mode pixel clock is stored in units of 1KHz.
6093 * Hence the bw of each lane in terms of the mode signal
6096 link_bw = intel_fdi_link_freq(to_i915(dev), pipe_config);
6098 fdi_dotclock = adjusted_mode->crtc_clock;
6100 lane = ironlake_get_lanes_required(fdi_dotclock, link_bw,
6101 pipe_config->pipe_bpp);
6103 pipe_config->fdi_lanes = lane;
6105 intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock,
6106 link_bw, &pipe_config->fdi_m_n, false);
6108 ret = ironlake_check_fdi_lanes(dev, intel_crtc->pipe, pipe_config);
6109 if (ret == -EINVAL && pipe_config->pipe_bpp > 6*3) {
6110 pipe_config->pipe_bpp -= 2*3;
6111 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
6112 pipe_config->pipe_bpp);
6113 needs_recompute = true;
6114 pipe_config->bw_constrained = true;
6119 if (needs_recompute)
6125 static bool pipe_config_supports_ips(struct drm_i915_private *dev_priv,
6126 struct intel_crtc_state *pipe_config)
6128 if (pipe_config->pipe_bpp > 24)
6131 /* HSW can handle pixel rate up to cdclk? */
6132 if (IS_HASWELL(dev_priv))
6136 * We compare against max which means we must take
6137 * the increased cdclk requirement into account when
6138 * calculating the new cdclk.
6140 * Should measure whether using a lower cdclk w/o IPS
6142 return pipe_config->pixel_rate <=
6143 dev_priv->max_cdclk_freq * 95 / 100;
6146 static void hsw_compute_ips_config(struct intel_crtc *crtc,
6147 struct intel_crtc_state *pipe_config)
6149 struct drm_device *dev = crtc->base.dev;
6150 struct drm_i915_private *dev_priv = to_i915(dev);
6152 pipe_config->ips_enabled = i915.enable_ips &&
6153 hsw_crtc_supports_ips(crtc) &&
6154 pipe_config_supports_ips(dev_priv, pipe_config);
6157 static bool intel_crtc_supports_double_wide(const struct intel_crtc *crtc)
6159 const struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
6161 /* GDG double wide on either pipe, otherwise pipe A only */
6162 return INTEL_INFO(dev_priv)->gen < 4 &&
6163 (crtc->pipe == PIPE_A || IS_I915G(dev_priv));
6166 static uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state *pipe_config)
6168 uint32_t pixel_rate;
6170 pixel_rate = pipe_config->base.adjusted_mode.crtc_clock;
6173 * We only use IF-ID interlacing. If we ever use
6174 * PF-ID we'll need to adjust the pixel_rate here.
6177 if (pipe_config->pch_pfit.enabled) {
6178 uint64_t pipe_w, pipe_h, pfit_w, pfit_h;
6179 uint32_t pfit_size = pipe_config->pch_pfit.size;
6181 pipe_w = pipe_config->pipe_src_w;
6182 pipe_h = pipe_config->pipe_src_h;
6184 pfit_w = (pfit_size >> 16) & 0xFFFF;
6185 pfit_h = pfit_size & 0xFFFF;
6186 if (pipe_w < pfit_w)
6188 if (pipe_h < pfit_h)
6191 if (WARN_ON(!pfit_w || !pfit_h))
6194 pixel_rate = div_u64((uint64_t) pixel_rate * pipe_w * pipe_h,
6201 static void intel_crtc_compute_pixel_rate(struct intel_crtc_state *crtc_state)
6203 struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
6205 if (HAS_GMCH_DISPLAY(dev_priv))
6206 /* FIXME calculate proper pipe pixel rate for GMCH pfit */
6207 crtc_state->pixel_rate =
6208 crtc_state->base.adjusted_mode.crtc_clock;
6210 crtc_state->pixel_rate =
6211 ilk_pipe_pixel_rate(crtc_state);
6214 static int intel_crtc_compute_config(struct intel_crtc *crtc,
6215 struct intel_crtc_state *pipe_config)
6217 struct drm_device *dev = crtc->base.dev;
6218 struct drm_i915_private *dev_priv = to_i915(dev);
6219 const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
6220 int clock_limit = dev_priv->max_dotclk_freq;
6222 if (INTEL_GEN(dev_priv) < 4) {
6223 clock_limit = dev_priv->max_cdclk_freq * 9 / 10;
6226 * Enable double wide mode when the dot clock
6227 * is > 90% of the (display) core speed.
6229 if (intel_crtc_supports_double_wide(crtc) &&
6230 adjusted_mode->crtc_clock > clock_limit) {
6231 clock_limit = dev_priv->max_dotclk_freq;
6232 pipe_config->double_wide = true;
6236 if (adjusted_mode->crtc_clock > clock_limit) {
6237 DRM_DEBUG_KMS("requested pixel clock (%d kHz) too high (max: %d kHz, double wide: %s)\n",
6238 adjusted_mode->crtc_clock, clock_limit,
6239 yesno(pipe_config->double_wide));
6244 * Pipe horizontal size must be even in:
6246 * - LVDS dual channel mode
6247 * - Double wide pipe
6249 if ((intel_crtc_has_type(pipe_config, INTEL_OUTPUT_LVDS) &&
6250 intel_is_dual_link_lvds(dev)) || pipe_config->double_wide)
6251 pipe_config->pipe_src_w &= ~1;
6253 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
6254 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
6256 if ((INTEL_GEN(dev_priv) > 4 || IS_G4X(dev_priv)) &&
6257 adjusted_mode->crtc_hsync_start == adjusted_mode->crtc_hdisplay)
6260 intel_crtc_compute_pixel_rate(pipe_config);
6262 if (HAS_IPS(dev_priv))
6263 hsw_compute_ips_config(crtc, pipe_config);
6265 if (pipe_config->has_pch_encoder)
6266 return ironlake_fdi_compute_config(crtc, pipe_config);
6272 intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den)
6274 while (*num > DATA_LINK_M_N_MASK ||
6275 *den > DATA_LINK_M_N_MASK) {
6281 static void compute_m_n(unsigned int m, unsigned int n,
6282 uint32_t *ret_m, uint32_t *ret_n,
6286 * Reduce M/N as much as possible without loss in precision. Several DP
6287 * dongles in particular seem to be fussy about too large *link* M/N
6288 * values. The passed in values are more likely to have the least
6289 * significant bits zero than M after rounding below, so do this first.
6292 while ((m & 1) == 0 && (n & 1) == 0) {
6298 *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
6299 *ret_m = div_u64((uint64_t) m * *ret_n, n);
6300 intel_reduce_m_n_ratio(ret_m, ret_n);
6304 intel_link_compute_m_n(int bits_per_pixel, int nlanes,
6305 int pixel_clock, int link_clock,
6306 struct intel_link_m_n *m_n,
6311 compute_m_n(bits_per_pixel * pixel_clock,
6312 link_clock * nlanes * 8,
6313 &m_n->gmch_m, &m_n->gmch_n,
6316 compute_m_n(pixel_clock, link_clock,
6317 &m_n->link_m, &m_n->link_n,
6321 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
6323 if (i915.panel_use_ssc >= 0)
6324 return i915.panel_use_ssc != 0;
6325 return dev_priv->vbt.lvds_use_ssc
6326 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
6329 static uint32_t pnv_dpll_compute_fp(struct dpll *dpll)
6331 return (1 << dpll->n) << 16 | dpll->m2;
6334 static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll)
6336 return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
6339 static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
6340 struct intel_crtc_state *crtc_state,
6341 struct dpll *reduced_clock)
6343 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
6346 if (IS_PINEVIEW(dev_priv)) {
6347 fp = pnv_dpll_compute_fp(&crtc_state->dpll);
6349 fp2 = pnv_dpll_compute_fp(reduced_clock);
6351 fp = i9xx_dpll_compute_fp(&crtc_state->dpll);
6353 fp2 = i9xx_dpll_compute_fp(reduced_clock);
6356 crtc_state->dpll_hw_state.fp0 = fp;
6358 crtc->lowfreq_avail = false;
6359 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
6361 crtc_state->dpll_hw_state.fp1 = fp2;
6362 crtc->lowfreq_avail = true;
6364 crtc_state->dpll_hw_state.fp1 = fp;
6368 static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe
6374 * PLLB opamp always calibrates to max value of 0x3f, force enable it
6375 * and set it to a reasonable value instead.
6377 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
6378 reg_val &= 0xffffff00;
6379 reg_val |= 0x00000030;
6380 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
6382 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
6383 reg_val &= 0x8cffffff;
6384 reg_val = 0x8c000000;
6385 vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
6387 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
6388 reg_val &= 0xffffff00;
6389 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
6391 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
6392 reg_val &= 0x00ffffff;
6393 reg_val |= 0xb0000000;
6394 vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
6397 static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
6398 struct intel_link_m_n *m_n)
6400 struct drm_device *dev = crtc->base.dev;
6401 struct drm_i915_private *dev_priv = to_i915(dev);
6402 int pipe = crtc->pipe;
6404 I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
6405 I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n);
6406 I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m);
6407 I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n);
6410 static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
6411 struct intel_link_m_n *m_n,
6412 struct intel_link_m_n *m2_n2)
6414 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
6415 int pipe = crtc->pipe;
6416 enum transcoder transcoder = crtc->config->cpu_transcoder;
6418 if (INTEL_GEN(dev_priv) >= 5) {
6419 I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
6420 I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
6421 I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
6422 I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
6423 /* M2_N2 registers to be set only for gen < 8 (M2_N2 available
6424 * for gen < 8) and if DRRS is supported (to make sure the
6425 * registers are not unnecessarily accessed).
6427 if (m2_n2 && (IS_CHERRYVIEW(dev_priv) ||
6428 INTEL_GEN(dev_priv) < 8) && crtc->config->has_drrs) {
6429 I915_WRITE(PIPE_DATA_M2(transcoder),
6430 TU_SIZE(m2_n2->tu) | m2_n2->gmch_m);
6431 I915_WRITE(PIPE_DATA_N2(transcoder), m2_n2->gmch_n);
6432 I915_WRITE(PIPE_LINK_M2(transcoder), m2_n2->link_m);
6433 I915_WRITE(PIPE_LINK_N2(transcoder), m2_n2->link_n);
6436 I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
6437 I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n);
6438 I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m);
6439 I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n);
6443 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n)
6445 struct intel_link_m_n *dp_m_n, *dp_m2_n2 = NULL;
6448 dp_m_n = &crtc->config->dp_m_n;
6449 dp_m2_n2 = &crtc->config->dp_m2_n2;
6450 } else if (m_n == M2_N2) {
6453 * M2_N2 registers are not supported. Hence m2_n2 divider value
6454 * needs to be programmed into M1_N1.
6456 dp_m_n = &crtc->config->dp_m2_n2;
6458 DRM_ERROR("Unsupported divider value\n");
6462 if (crtc->config->has_pch_encoder)
6463 intel_pch_transcoder_set_m_n(crtc, &crtc->config->dp_m_n);
6465 intel_cpu_transcoder_set_m_n(crtc, dp_m_n, dp_m2_n2);
6468 static void vlv_compute_dpll(struct intel_crtc *crtc,
6469 struct intel_crtc_state *pipe_config)
6471 pipe_config->dpll_hw_state.dpll = DPLL_INTEGRATED_REF_CLK_VLV |
6472 DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
6473 if (crtc->pipe != PIPE_A)
6474 pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
6476 /* DPLL not used with DSI, but still need the rest set up */
6477 if (!intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DSI))
6478 pipe_config->dpll_hw_state.dpll |= DPLL_VCO_ENABLE |
6479 DPLL_EXT_BUFFER_ENABLE_VLV;
6481 pipe_config->dpll_hw_state.dpll_md =
6482 (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
6485 static void chv_compute_dpll(struct intel_crtc *crtc,
6486 struct intel_crtc_state *pipe_config)
6488 pipe_config->dpll_hw_state.dpll = DPLL_SSC_REF_CLK_CHV |
6489 DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
6490 if (crtc->pipe != PIPE_A)
6491 pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
6493 /* DPLL not used with DSI, but still need the rest set up */
6494 if (!intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DSI))
6495 pipe_config->dpll_hw_state.dpll |= DPLL_VCO_ENABLE;
6497 pipe_config->dpll_hw_state.dpll_md =
6498 (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
6501 static void vlv_prepare_pll(struct intel_crtc *crtc,
6502 const struct intel_crtc_state *pipe_config)
6504 struct drm_device *dev = crtc->base.dev;
6505 struct drm_i915_private *dev_priv = to_i915(dev);
6506 enum pipe pipe = crtc->pipe;
6508 u32 bestn, bestm1, bestm2, bestp1, bestp2;
6509 u32 coreclk, reg_val;
6512 I915_WRITE(DPLL(pipe),
6513 pipe_config->dpll_hw_state.dpll &
6514 ~(DPLL_VCO_ENABLE | DPLL_EXT_BUFFER_ENABLE_VLV));
6516 /* No need to actually set up the DPLL with DSI */
6517 if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0)
6520 mutex_lock(&dev_priv->sb_lock);
6522 bestn = pipe_config->dpll.n;
6523 bestm1 = pipe_config->dpll.m1;
6524 bestm2 = pipe_config->dpll.m2;
6525 bestp1 = pipe_config->dpll.p1;
6526 bestp2 = pipe_config->dpll.p2;
6528 /* See eDP HDMI DPIO driver vbios notes doc */
6530 /* PLL B needs special handling */
6532 vlv_pllb_recal_opamp(dev_priv, pipe);
6534 /* Set up Tx target for periodic Rcomp update */
6535 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f);
6537 /* Disable target IRef on PLL */
6538 reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe));
6539 reg_val &= 0x00ffffff;
6540 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val);
6542 /* Disable fast lock */
6543 vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610);
6545 /* Set idtafcrecal before PLL is enabled */
6546 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
6547 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
6548 mdiv |= ((bestn << DPIO_N_SHIFT));
6549 mdiv |= (1 << DPIO_K_SHIFT);
6552 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
6553 * but we don't support that).
6554 * Note: don't use the DAC post divider as it seems unstable.
6556 mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
6557 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
6559 mdiv |= DPIO_ENABLE_CALIBRATION;
6560 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
6562 /* Set HBR and RBR LPF coefficients */
6563 if (pipe_config->port_clock == 162000 ||
6564 intel_crtc_has_type(crtc->config, INTEL_OUTPUT_ANALOG) ||
6565 intel_crtc_has_type(crtc->config, INTEL_OUTPUT_HDMI))
6566 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
6569 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
6572 if (intel_crtc_has_dp_encoder(pipe_config)) {
6573 /* Use SSC source */
6575 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
6578 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
6580 } else { /* HDMI or VGA */
6581 /* Use bend source */
6583 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
6586 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
6590 coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe));
6591 coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
6592 if (intel_crtc_has_dp_encoder(crtc->config))
6593 coreclk |= 0x01000000;
6594 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk);
6596 vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000);
6597 mutex_unlock(&dev_priv->sb_lock);
6600 static void chv_prepare_pll(struct intel_crtc *crtc,
6601 const struct intel_crtc_state *pipe_config)
6603 struct drm_device *dev = crtc->base.dev;
6604 struct drm_i915_private *dev_priv = to_i915(dev);
6605 enum pipe pipe = crtc->pipe;
6606 enum dpio_channel port = vlv_pipe_to_channel(pipe);
6607 u32 loopfilter, tribuf_calcntr;
6608 u32 bestn, bestm1, bestm2, bestp1, bestp2, bestm2_frac;
6612 /* Enable Refclk and SSC */
6613 I915_WRITE(DPLL(pipe),
6614 pipe_config->dpll_hw_state.dpll & ~DPLL_VCO_ENABLE);
6616 /* No need to actually set up the DPLL with DSI */
6617 if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0)
6620 bestn = pipe_config->dpll.n;
6621 bestm2_frac = pipe_config->dpll.m2 & 0x3fffff;
6622 bestm1 = pipe_config->dpll.m1;
6623 bestm2 = pipe_config->dpll.m2 >> 22;
6624 bestp1 = pipe_config->dpll.p1;
6625 bestp2 = pipe_config->dpll.p2;
6626 vco = pipe_config->dpll.vco;
6630 mutex_lock(&dev_priv->sb_lock);
6632 /* p1 and p2 divider */
6633 vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW13(port),
6634 5 << DPIO_CHV_S1_DIV_SHIFT |
6635 bestp1 << DPIO_CHV_P1_DIV_SHIFT |
6636 bestp2 << DPIO_CHV_P2_DIV_SHIFT |
6637 1 << DPIO_CHV_K_DIV_SHIFT);
6639 /* Feedback post-divider - m2 */
6640 vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW0(port), bestm2);
6642 /* Feedback refclk divider - n and m1 */
6643 vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW1(port),
6644 DPIO_CHV_M1_DIV_BY_2 |
6645 1 << DPIO_CHV_N_DIV_SHIFT);
6647 /* M2 fraction division */
6648 vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW2(port), bestm2_frac);
6650 /* M2 fraction division enable */
6651 dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port));
6652 dpio_val &= ~(DPIO_CHV_FEEDFWD_GAIN_MASK | DPIO_CHV_FRAC_DIV_EN);
6653 dpio_val |= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT);
6655 dpio_val |= DPIO_CHV_FRAC_DIV_EN;
6656 vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW3(port), dpio_val);
6658 /* Program digital lock detect threshold */
6659 dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW9(port));
6660 dpio_val &= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK |
6661 DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE);
6662 dpio_val |= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT);
6664 dpio_val |= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE;
6665 vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW9(port), dpio_val);
6668 if (vco == 5400000) {
6669 loopfilter |= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT);
6670 loopfilter |= (0x8 << DPIO_CHV_INT_COEFF_SHIFT);
6671 loopfilter |= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT);
6672 tribuf_calcntr = 0x9;
6673 } else if (vco <= 6200000) {
6674 loopfilter |= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT);
6675 loopfilter |= (0xB << DPIO_CHV_INT_COEFF_SHIFT);
6676 loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
6677 tribuf_calcntr = 0x9;
6678 } else if (vco <= 6480000) {
6679 loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT);
6680 loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT);
6681 loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
6682 tribuf_calcntr = 0x8;
6684 /* Not supported. Apply the same limits as in the max case */
6685 loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT);
6686 loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT);
6687 loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
6690 vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW6(port), loopfilter);
6692 dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW8(port));
6693 dpio_val &= ~DPIO_CHV_TDC_TARGET_CNT_MASK;
6694 dpio_val |= (tribuf_calcntr << DPIO_CHV_TDC_TARGET_CNT_SHIFT);
6695 vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW8(port), dpio_val);
6698 vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port),
6699 vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)) |
6702 mutex_unlock(&dev_priv->sb_lock);
6706 * vlv_force_pll_on - forcibly enable just the PLL
6707 * @dev_priv: i915 private structure
6708 * @pipe: pipe PLL to enable
6709 * @dpll: PLL configuration
6711 * Enable the PLL for @pipe using the supplied @dpll config. To be used
6712 * in cases where we need the PLL enabled even when @pipe is not going to
6715 int vlv_force_pll_on(struct drm_i915_private *dev_priv, enum pipe pipe,
6716 const struct dpll *dpll)
6718 struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
6719 struct intel_crtc_state *pipe_config;
6721 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
6725 pipe_config->base.crtc = &crtc->base;
6726 pipe_config->pixel_multiplier = 1;
6727 pipe_config->dpll = *dpll;
6729 if (IS_CHERRYVIEW(dev_priv)) {
6730 chv_compute_dpll(crtc, pipe_config);
6731 chv_prepare_pll(crtc, pipe_config);
6732 chv_enable_pll(crtc, pipe_config);
6734 vlv_compute_dpll(crtc, pipe_config);
6735 vlv_prepare_pll(crtc, pipe_config);
6736 vlv_enable_pll(crtc, pipe_config);
6745 * vlv_force_pll_off - forcibly disable just the PLL
6746 * @dev_priv: i915 private structure
6747 * @pipe: pipe PLL to disable
6749 * Disable the PLL for @pipe. To be used in cases where we need
6750 * the PLL enabled even when @pipe is not going to be enabled.
6752 void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe)
6754 if (IS_CHERRYVIEW(dev_priv))
6755 chv_disable_pll(dev_priv, pipe);
6757 vlv_disable_pll(dev_priv, pipe);
6760 static void i9xx_compute_dpll(struct intel_crtc *crtc,
6761 struct intel_crtc_state *crtc_state,
6762 struct dpll *reduced_clock)
6764 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
6766 struct dpll *clock = &crtc_state->dpll;
6768 i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock);
6770 dpll = DPLL_VGA_MODE_DIS;
6772 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS))
6773 dpll |= DPLLB_MODE_LVDS;
6775 dpll |= DPLLB_MODE_DAC_SERIAL;
6777 if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) ||
6778 IS_G33(dev_priv) || IS_PINEVIEW(dev_priv)) {
6779 dpll |= (crtc_state->pixel_multiplier - 1)
6780 << SDVO_MULTIPLIER_SHIFT_HIRES;
6783 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO) ||
6784 intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
6785 dpll |= DPLL_SDVO_HIGH_SPEED;
6787 if (intel_crtc_has_dp_encoder(crtc_state))
6788 dpll |= DPLL_SDVO_HIGH_SPEED;
6790 /* compute bitmask from p1 value */
6791 if (IS_PINEVIEW(dev_priv))
6792 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
6794 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
6795 if (IS_G4X(dev_priv) && reduced_clock)
6796 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
6798 switch (clock->p2) {
6800 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
6803 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
6806 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
6809 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
6812 if (INTEL_GEN(dev_priv) >= 4)
6813 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
6815 if (crtc_state->sdvo_tv_clock)
6816 dpll |= PLL_REF_INPUT_TVCLKINBC;
6817 else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
6818 intel_panel_use_ssc(dev_priv))
6819 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
6821 dpll |= PLL_REF_INPUT_DREFCLK;
6823 dpll |= DPLL_VCO_ENABLE;
6824 crtc_state->dpll_hw_state.dpll = dpll;
6826 if (INTEL_GEN(dev_priv) >= 4) {
6827 u32 dpll_md = (crtc_state->pixel_multiplier - 1)
6828 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
6829 crtc_state->dpll_hw_state.dpll_md = dpll_md;
6833 static void i8xx_compute_dpll(struct intel_crtc *crtc,
6834 struct intel_crtc_state *crtc_state,
6835 struct dpll *reduced_clock)
6837 struct drm_device *dev = crtc->base.dev;
6838 struct drm_i915_private *dev_priv = to_i915(dev);
6840 struct dpll *clock = &crtc_state->dpll;
6842 i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock);
6844 dpll = DPLL_VGA_MODE_DIS;
6846 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
6847 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
6850 dpll |= PLL_P1_DIVIDE_BY_TWO;
6852 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
6854 dpll |= PLL_P2_DIVIDE_BY_4;
6857 if (!IS_I830(dev_priv) &&
6858 intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DVO))
6859 dpll |= DPLL_DVO_2X_MODE;
6861 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
6862 intel_panel_use_ssc(dev_priv))
6863 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
6865 dpll |= PLL_REF_INPUT_DREFCLK;
6867 dpll |= DPLL_VCO_ENABLE;
6868 crtc_state->dpll_hw_state.dpll = dpll;
6871 static void intel_set_pipe_timings(struct intel_crtc *intel_crtc)
6873 struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
6874 enum pipe pipe = intel_crtc->pipe;
6875 enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
6876 const struct drm_display_mode *adjusted_mode = &intel_crtc->config->base.adjusted_mode;
6877 uint32_t crtc_vtotal, crtc_vblank_end;
6880 /* We need to be careful not to changed the adjusted mode, for otherwise
6881 * the hw state checker will get angry at the mismatch. */
6882 crtc_vtotal = adjusted_mode->crtc_vtotal;
6883 crtc_vblank_end = adjusted_mode->crtc_vblank_end;
6885 if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
6886 /* the chip adds 2 halflines automatically */
6888 crtc_vblank_end -= 1;
6890 if (intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_SDVO))
6891 vsyncshift = (adjusted_mode->crtc_htotal - 1) / 2;
6893 vsyncshift = adjusted_mode->crtc_hsync_start -
6894 adjusted_mode->crtc_htotal / 2;
6896 vsyncshift += adjusted_mode->crtc_htotal;
6899 if (INTEL_GEN(dev_priv) > 3)
6900 I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
6902 I915_WRITE(HTOTAL(cpu_transcoder),
6903 (adjusted_mode->crtc_hdisplay - 1) |
6904 ((adjusted_mode->crtc_htotal - 1) << 16));
6905 I915_WRITE(HBLANK(cpu_transcoder),
6906 (adjusted_mode->crtc_hblank_start - 1) |
6907 ((adjusted_mode->crtc_hblank_end - 1) << 16));
6908 I915_WRITE(HSYNC(cpu_transcoder),
6909 (adjusted_mode->crtc_hsync_start - 1) |
6910 ((adjusted_mode->crtc_hsync_end - 1) << 16));
6912 I915_WRITE(VTOTAL(cpu_transcoder),
6913 (adjusted_mode->crtc_vdisplay - 1) |
6914 ((crtc_vtotal - 1) << 16));
6915 I915_WRITE(VBLANK(cpu_transcoder),
6916 (adjusted_mode->crtc_vblank_start - 1) |
6917 ((crtc_vblank_end - 1) << 16));
6918 I915_WRITE(VSYNC(cpu_transcoder),
6919 (adjusted_mode->crtc_vsync_start - 1) |
6920 ((adjusted_mode->crtc_vsync_end - 1) << 16));
6922 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
6923 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
6924 * documented on the DDI_FUNC_CTL register description, EDP Input Select
6926 if (IS_HASWELL(dev_priv) && cpu_transcoder == TRANSCODER_EDP &&
6927 (pipe == PIPE_B || pipe == PIPE_C))
6928 I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
6932 static void intel_set_pipe_src_size(struct intel_crtc *intel_crtc)
6934 struct drm_device *dev = intel_crtc->base.dev;
6935 struct drm_i915_private *dev_priv = to_i915(dev);
6936 enum pipe pipe = intel_crtc->pipe;
6938 /* pipesrc controls the size that is scaled from, which should
6939 * always be the user's requested size.
6941 I915_WRITE(PIPESRC(pipe),
6942 ((intel_crtc->config->pipe_src_w - 1) << 16) |
6943 (intel_crtc->config->pipe_src_h - 1));
6946 static void intel_get_pipe_timings(struct intel_crtc *crtc,
6947 struct intel_crtc_state *pipe_config)
6949 struct drm_device *dev = crtc->base.dev;
6950 struct drm_i915_private *dev_priv = to_i915(dev);
6951 enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
6954 tmp = I915_READ(HTOTAL(cpu_transcoder));
6955 pipe_config->base.adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1;
6956 pipe_config->base.adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1;
6957 tmp = I915_READ(HBLANK(cpu_transcoder));
6958 pipe_config->base.adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1;
6959 pipe_config->base.adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1;
6960 tmp = I915_READ(HSYNC(cpu_transcoder));
6961 pipe_config->base.adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1;
6962 pipe_config->base.adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1;
6964 tmp = I915_READ(VTOTAL(cpu_transcoder));
6965 pipe_config->base.adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1;
6966 pipe_config->base.adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1;
6967 tmp = I915_READ(VBLANK(cpu_transcoder));
6968 pipe_config->base.adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1;
6969 pipe_config->base.adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1;
6970 tmp = I915_READ(VSYNC(cpu_transcoder));
6971 pipe_config->base.adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1;
6972 pipe_config->base.adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1;
6974 if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) {
6975 pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE;
6976 pipe_config->base.adjusted_mode.crtc_vtotal += 1;
6977 pipe_config->base.adjusted_mode.crtc_vblank_end += 1;
6981 static void intel_get_pipe_src_size(struct intel_crtc *crtc,
6982 struct intel_crtc_state *pipe_config)
6984 struct drm_device *dev = crtc->base.dev;
6985 struct drm_i915_private *dev_priv = to_i915(dev);
6988 tmp = I915_READ(PIPESRC(crtc->pipe));
6989 pipe_config->pipe_src_h = (tmp & 0xffff) + 1;
6990 pipe_config->pipe_src_w = ((tmp >> 16) & 0xffff) + 1;
6992 pipe_config->base.mode.vdisplay = pipe_config->pipe_src_h;
6993 pipe_config->base.mode.hdisplay = pipe_config->pipe_src_w;
6996 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
6997 struct intel_crtc_state *pipe_config)
6999 mode->hdisplay = pipe_config->base.adjusted_mode.crtc_hdisplay;
7000 mode->htotal = pipe_config->base.adjusted_mode.crtc_htotal;
7001 mode->hsync_start = pipe_config->base.adjusted_mode.crtc_hsync_start;
7002 mode->hsync_end = pipe_config->base.adjusted_mode.crtc_hsync_end;
7004 mode->vdisplay = pipe_config->base.adjusted_mode.crtc_vdisplay;
7005 mode->vtotal = pipe_config->base.adjusted_mode.crtc_vtotal;
7006 mode->vsync_start = pipe_config->base.adjusted_mode.crtc_vsync_start;
7007 mode->vsync_end = pipe_config->base.adjusted_mode.crtc_vsync_end;
7009 mode->flags = pipe_config->base.adjusted_mode.flags;
7010 mode->type = DRM_MODE_TYPE_DRIVER;
7012 mode->clock = pipe_config->base.adjusted_mode.crtc_clock;
7014 mode->hsync = drm_mode_hsync(mode);
7015 mode->vrefresh = drm_mode_vrefresh(mode);
7016 drm_mode_set_name(mode);
7019 static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
7021 struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
7026 if ((intel_crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) ||
7027 (intel_crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))
7028 pipeconf |= I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE;
7030 if (intel_crtc->config->double_wide)
7031 pipeconf |= PIPECONF_DOUBLE_WIDE;
7033 /* only g4x and later have fancy bpc/dither controls */
7034 if (IS_G4X(dev_priv) || IS_VALLEYVIEW(dev_priv) ||
7035 IS_CHERRYVIEW(dev_priv)) {
7036 /* Bspec claims that we can't use dithering for 30bpp pipes. */
7037 if (intel_crtc->config->dither && intel_crtc->config->pipe_bpp != 30)
7038 pipeconf |= PIPECONF_DITHER_EN |
7039 PIPECONF_DITHER_TYPE_SP;
7041 switch (intel_crtc->config->pipe_bpp) {
7043 pipeconf |= PIPECONF_6BPC;
7046 pipeconf |= PIPECONF_8BPC;
7049 pipeconf |= PIPECONF_10BPC;
7052 /* Case prevented by intel_choose_pipe_bpp_dither. */
7057 if (HAS_PIPE_CXSR(dev_priv)) {
7058 if (intel_crtc->lowfreq_avail) {
7059 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
7060 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
7062 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
7066 if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) {
7067 if (INTEL_GEN(dev_priv) < 4 ||
7068 intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_SDVO))
7069 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
7071 pipeconf |= PIPECONF_INTERLACE_W_SYNC_SHIFT;
7073 pipeconf |= PIPECONF_PROGRESSIVE;
7075 if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
7076 intel_crtc->config->limited_color_range)
7077 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
7079 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
7080 POSTING_READ(PIPECONF(intel_crtc->pipe));
7083 static int i8xx_crtc_compute_clock(struct intel_crtc *crtc,
7084 struct intel_crtc_state *crtc_state)
7086 struct drm_device *dev = crtc->base.dev;
7087 struct drm_i915_private *dev_priv = to_i915(dev);
7088 const struct intel_limit *limit;
7091 memset(&crtc_state->dpll_hw_state, 0,
7092 sizeof(crtc_state->dpll_hw_state));
7094 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
7095 if (intel_panel_use_ssc(dev_priv)) {
7096 refclk = dev_priv->vbt.lvds_ssc_freq;
7097 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk);
7100 limit = &intel_limits_i8xx_lvds;
7101 } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DVO)) {
7102 limit = &intel_limits_i8xx_dvo;
7104 limit = &intel_limits_i8xx_dac;
7107 if (!crtc_state->clock_set &&
7108 !i9xx_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
7109 refclk, NULL, &crtc_state->dpll)) {
7110 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7114 i8xx_compute_dpll(crtc, crtc_state, NULL);
7119 static int g4x_crtc_compute_clock(struct intel_crtc *crtc,
7120 struct intel_crtc_state *crtc_state)
7122 struct drm_device *dev = crtc->base.dev;
7123 struct drm_i915_private *dev_priv = to_i915(dev);
7124 const struct intel_limit *limit;
7127 memset(&crtc_state->dpll_hw_state, 0,
7128 sizeof(crtc_state->dpll_hw_state));
7130 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
7131 if (intel_panel_use_ssc(dev_priv)) {
7132 refclk = dev_priv->vbt.lvds_ssc_freq;
7133 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk);
7136 if (intel_is_dual_link_lvds(dev))
7137 limit = &intel_limits_g4x_dual_channel_lvds;
7139 limit = &intel_limits_g4x_single_channel_lvds;
7140 } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) ||
7141 intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG)) {
7142 limit = &intel_limits_g4x_hdmi;
7143 } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO)) {
7144 limit = &intel_limits_g4x_sdvo;
7146 /* The option is for other outputs */
7147 limit = &intel_limits_i9xx_sdvo;
7150 if (!crtc_state->clock_set &&
7151 !g4x_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
7152 refclk, NULL, &crtc_state->dpll)) {
7153 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7157 i9xx_compute_dpll(crtc, crtc_state, NULL);
7162 static int pnv_crtc_compute_clock(struct intel_crtc *crtc,
7163 struct intel_crtc_state *crtc_state)
7165 struct drm_device *dev = crtc->base.dev;
7166 struct drm_i915_private *dev_priv = to_i915(dev);
7167 const struct intel_limit *limit;
7170 memset(&crtc_state->dpll_hw_state, 0,
7171 sizeof(crtc_state->dpll_hw_state));
7173 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
7174 if (intel_panel_use_ssc(dev_priv)) {
7175 refclk = dev_priv->vbt.lvds_ssc_freq;
7176 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk);
7179 limit = &intel_limits_pineview_lvds;
7181 limit = &intel_limits_pineview_sdvo;
7184 if (!crtc_state->clock_set &&
7185 !pnv_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
7186 refclk, NULL, &crtc_state->dpll)) {
7187 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7191 i9xx_compute_dpll(crtc, crtc_state, NULL);
7196 static int i9xx_crtc_compute_clock(struct intel_crtc *crtc,
7197 struct intel_crtc_state *crtc_state)
7199 struct drm_device *dev = crtc->base.dev;
7200 struct drm_i915_private *dev_priv = to_i915(dev);
7201 const struct intel_limit *limit;
7204 memset(&crtc_state->dpll_hw_state, 0,
7205 sizeof(crtc_state->dpll_hw_state));
7207 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
7208 if (intel_panel_use_ssc(dev_priv)) {
7209 refclk = dev_priv->vbt.lvds_ssc_freq;
7210 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk);
7213 limit = &intel_limits_i9xx_lvds;
7215 limit = &intel_limits_i9xx_sdvo;
7218 if (!crtc_state->clock_set &&
7219 !i9xx_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
7220 refclk, NULL, &crtc_state->dpll)) {
7221 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7225 i9xx_compute_dpll(crtc, crtc_state, NULL);
7230 static int chv_crtc_compute_clock(struct intel_crtc *crtc,
7231 struct intel_crtc_state *crtc_state)
7233 int refclk = 100000;
7234 const struct intel_limit *limit = &intel_limits_chv;
7236 memset(&crtc_state->dpll_hw_state, 0,
7237 sizeof(crtc_state->dpll_hw_state));
7239 if (!crtc_state->clock_set &&
7240 !chv_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
7241 refclk, NULL, &crtc_state->dpll)) {
7242 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7246 chv_compute_dpll(crtc, crtc_state);
7251 static int vlv_crtc_compute_clock(struct intel_crtc *crtc,
7252 struct intel_crtc_state *crtc_state)
7254 int refclk = 100000;
7255 const struct intel_limit *limit = &intel_limits_vlv;
7257 memset(&crtc_state->dpll_hw_state, 0,
7258 sizeof(crtc_state->dpll_hw_state));
7260 if (!crtc_state->clock_set &&
7261 !vlv_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
7262 refclk, NULL, &crtc_state->dpll)) {
7263 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7267 vlv_compute_dpll(crtc, crtc_state);
7272 static void i9xx_get_pfit_config(struct intel_crtc *crtc,
7273 struct intel_crtc_state *pipe_config)
7275 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
7278 if (INTEL_GEN(dev_priv) <= 3 &&
7279 (IS_I830(dev_priv) || !IS_MOBILE(dev_priv)))
7282 tmp = I915_READ(PFIT_CONTROL);
7283 if (!(tmp & PFIT_ENABLE))
7286 /* Check whether the pfit is attached to our pipe. */
7287 if (INTEL_GEN(dev_priv) < 4) {
7288 if (crtc->pipe != PIPE_B)
7291 if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT))
7295 pipe_config->gmch_pfit.control = tmp;
7296 pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS);
7299 static void vlv_crtc_clock_get(struct intel_crtc *crtc,
7300 struct intel_crtc_state *pipe_config)
7302 struct drm_device *dev = crtc->base.dev;
7303 struct drm_i915_private *dev_priv = to_i915(dev);
7304 int pipe = pipe_config->cpu_transcoder;
7307 int refclk = 100000;
7309 /* In case of DSI, DPLL will not be used */
7310 if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0)
7313 mutex_lock(&dev_priv->sb_lock);
7314 mdiv = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW3(pipe));
7315 mutex_unlock(&dev_priv->sb_lock);
7317 clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7;
7318 clock.m2 = mdiv & DPIO_M2DIV_MASK;
7319 clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf;
7320 clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7;
7321 clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f;
7323 pipe_config->port_clock = vlv_calc_dpll_params(refclk, &clock);
7327 i9xx_get_initial_plane_config(struct intel_crtc *crtc,
7328 struct intel_initial_plane_config *plane_config)
7330 struct drm_device *dev = crtc->base.dev;
7331 struct drm_i915_private *dev_priv = to_i915(dev);
7332 u32 val, base, offset;
7333 int pipe = crtc->pipe, plane = crtc->plane;
7334 int fourcc, pixel_format;
7335 unsigned int aligned_height;
7336 struct drm_framebuffer *fb;
7337 struct intel_framebuffer *intel_fb;
7339 val = I915_READ(DSPCNTR(plane));
7340 if (!(val & DISPLAY_PLANE_ENABLE))
7343 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
7345 DRM_DEBUG_KMS("failed to alloc fb\n");
7349 fb = &intel_fb->base;
7353 if (INTEL_GEN(dev_priv) >= 4) {
7354 if (val & DISPPLANE_TILED) {
7355 plane_config->tiling = I915_TILING_X;
7356 fb->modifier = I915_FORMAT_MOD_X_TILED;
7360 pixel_format = val & DISPPLANE_PIXFORMAT_MASK;
7361 fourcc = i9xx_format_to_fourcc(pixel_format);
7362 fb->format = drm_format_info(fourcc);
7364 if (INTEL_GEN(dev_priv) >= 4) {
7365 if (plane_config->tiling)
7366 offset = I915_READ(DSPTILEOFF(plane));
7368 offset = I915_READ(DSPLINOFF(plane));
7369 base = I915_READ(DSPSURF(plane)) & 0xfffff000;
7371 base = I915_READ(DSPADDR(plane));
7373 plane_config->base = base;
7375 val = I915_READ(PIPESRC(pipe));
7376 fb->width = ((val >> 16) & 0xfff) + 1;
7377 fb->height = ((val >> 0) & 0xfff) + 1;
7379 val = I915_READ(DSPSTRIDE(pipe));
7380 fb->pitches[0] = val & 0xffffffc0;
7382 aligned_height = intel_fb_align_height(fb, 0, fb->height);
7384 plane_config->size = fb->pitches[0] * aligned_height;
7386 DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
7387 pipe_name(pipe), plane, fb->width, fb->height,
7388 fb->format->cpp[0] * 8, base, fb->pitches[0],
7389 plane_config->size);
7391 plane_config->fb = intel_fb;
7394 static void chv_crtc_clock_get(struct intel_crtc *crtc,
7395 struct intel_crtc_state *pipe_config)
7397 struct drm_device *dev = crtc->base.dev;
7398 struct drm_i915_private *dev_priv = to_i915(dev);
7399 int pipe = pipe_config->cpu_transcoder;
7400 enum dpio_channel port = vlv_pipe_to_channel(pipe);
7402 u32 cmn_dw13, pll_dw0, pll_dw1, pll_dw2, pll_dw3;
7403 int refclk = 100000;
7405 /* In case of DSI, DPLL will not be used */
7406 if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0)
7409 mutex_lock(&dev_priv->sb_lock);
7410 cmn_dw13 = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW13(port));
7411 pll_dw0 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW0(port));
7412 pll_dw1 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW1(port));
7413 pll_dw2 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW2(port));
7414 pll_dw3 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port));
7415 mutex_unlock(&dev_priv->sb_lock);
7417 clock.m1 = (pll_dw1 & 0x7) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0;
7418 clock.m2 = (pll_dw0 & 0xff) << 22;
7419 if (pll_dw3 & DPIO_CHV_FRAC_DIV_EN)
7420 clock.m2 |= pll_dw2 & 0x3fffff;
7421 clock.n = (pll_dw1 >> DPIO_CHV_N_DIV_SHIFT) & 0xf;
7422 clock.p1 = (cmn_dw13 >> DPIO_CHV_P1_DIV_SHIFT) & 0x7;
7423 clock.p2 = (cmn_dw13 >> DPIO_CHV_P2_DIV_SHIFT) & 0x1f;
7425 pipe_config->port_clock = chv_calc_dpll_params(refclk, &clock);
7428 static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
7429 struct intel_crtc_state *pipe_config)
7431 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
7432 enum intel_display_power_domain power_domain;
7436 power_domain = POWER_DOMAIN_PIPE(crtc->pipe);
7437 if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
7440 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
7441 pipe_config->shared_dpll = NULL;
7445 tmp = I915_READ(PIPECONF(crtc->pipe));
7446 if (!(tmp & PIPECONF_ENABLE))
7449 if (IS_G4X(dev_priv) || IS_VALLEYVIEW(dev_priv) ||
7450 IS_CHERRYVIEW(dev_priv)) {
7451 switch (tmp & PIPECONF_BPC_MASK) {
7453 pipe_config->pipe_bpp = 18;
7456 pipe_config->pipe_bpp = 24;
7458 case PIPECONF_10BPC:
7459 pipe_config->pipe_bpp = 30;
7466 if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
7467 (tmp & PIPECONF_COLOR_RANGE_SELECT))
7468 pipe_config->limited_color_range = true;
7470 if (INTEL_GEN(dev_priv) < 4)
7471 pipe_config->double_wide = tmp & PIPECONF_DOUBLE_WIDE;
7473 intel_get_pipe_timings(crtc, pipe_config);
7474 intel_get_pipe_src_size(crtc, pipe_config);
7476 i9xx_get_pfit_config(crtc, pipe_config);
7478 if (INTEL_GEN(dev_priv) >= 4) {
7479 /* No way to read it out on pipes B and C */
7480 if (IS_CHERRYVIEW(dev_priv) && crtc->pipe != PIPE_A)
7481 tmp = dev_priv->chv_dpll_md[crtc->pipe];
7483 tmp = I915_READ(DPLL_MD(crtc->pipe));
7484 pipe_config->pixel_multiplier =
7485 ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK)
7486 >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1;
7487 pipe_config->dpll_hw_state.dpll_md = tmp;
7488 } else if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) ||
7489 IS_G33(dev_priv) || IS_PINEVIEW(dev_priv)) {
7490 tmp = I915_READ(DPLL(crtc->pipe));
7491 pipe_config->pixel_multiplier =
7492 ((tmp & SDVO_MULTIPLIER_MASK)
7493 >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1;
7495 /* Note that on i915G/GM the pixel multiplier is in the sdvo
7496 * port and will be fixed up in the encoder->get_config
7498 pipe_config->pixel_multiplier = 1;
7500 pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe));
7501 if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv)) {
7503 * DPLL_DVO_2X_MODE must be enabled for both DPLLs
7504 * on 830. Filter it out here so that we don't
7505 * report errors due to that.
7507 if (IS_I830(dev_priv))
7508 pipe_config->dpll_hw_state.dpll &= ~DPLL_DVO_2X_MODE;
7510 pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe));
7511 pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe));
7513 /* Mask out read-only status bits. */
7514 pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV |
7515 DPLL_PORTC_READY_MASK |
7516 DPLL_PORTB_READY_MASK);
7519 if (IS_CHERRYVIEW(dev_priv))
7520 chv_crtc_clock_get(crtc, pipe_config);
7521 else if (IS_VALLEYVIEW(dev_priv))
7522 vlv_crtc_clock_get(crtc, pipe_config);
7524 i9xx_crtc_clock_get(crtc, pipe_config);
7527 * Normally the dotclock is filled in by the encoder .get_config()
7528 * but in case the pipe is enabled w/o any ports we need a sane
7531 pipe_config->base.adjusted_mode.crtc_clock =
7532 pipe_config->port_clock / pipe_config->pixel_multiplier;
7537 intel_display_power_put(dev_priv, power_domain);
7542 static void ironlake_init_pch_refclk(struct drm_i915_private *dev_priv)
7544 struct intel_encoder *encoder;
7547 bool has_lvds = false;
7548 bool has_cpu_edp = false;
7549 bool has_panel = false;
7550 bool has_ck505 = false;
7551 bool can_ssc = false;
7552 bool using_ssc_source = false;
7554 /* We need to take the global config into account */
7555 for_each_intel_encoder(&dev_priv->drm, encoder) {
7556 switch (encoder->type) {
7557 case INTEL_OUTPUT_LVDS:
7561 case INTEL_OUTPUT_EDP:
7563 if (enc_to_dig_port(&encoder->base)->port == PORT_A)
7571 if (HAS_PCH_IBX(dev_priv)) {
7572 has_ck505 = dev_priv->vbt.display_clock_mode;
7573 can_ssc = has_ck505;
7579 /* Check if any DPLLs are using the SSC source */
7580 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
7581 u32 temp = I915_READ(PCH_DPLL(i));
7583 if (!(temp & DPLL_VCO_ENABLE))
7586 if ((temp & PLL_REF_INPUT_MASK) ==
7587 PLLB_REF_INPUT_SPREADSPECTRUMIN) {
7588 using_ssc_source = true;
7593 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d using_ssc_source %d\n",
7594 has_panel, has_lvds, has_ck505, using_ssc_source);
7596 /* Ironlake: try to setup display ref clock before DPLL
7597 * enabling. This is only under driver's control after
7598 * PCH B stepping, previous chipset stepping should be
7599 * ignoring this setting.
7601 val = I915_READ(PCH_DREF_CONTROL);
7603 /* As we must carefully and slowly disable/enable each source in turn,
7604 * compute the final state we want first and check if we need to
7605 * make any changes at all.
7608 final &= ~DREF_NONSPREAD_SOURCE_MASK;
7610 final |= DREF_NONSPREAD_CK505_ENABLE;
7612 final |= DREF_NONSPREAD_SOURCE_ENABLE;
7614 final &= ~DREF_SSC_SOURCE_MASK;
7615 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
7616 final &= ~DREF_SSC1_ENABLE;
7619 final |= DREF_SSC_SOURCE_ENABLE;
7621 if (intel_panel_use_ssc(dev_priv) && can_ssc)
7622 final |= DREF_SSC1_ENABLE;
7625 if (intel_panel_use_ssc(dev_priv) && can_ssc)
7626 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
7628 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
7630 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
7631 } else if (using_ssc_source) {
7632 final |= DREF_SSC_SOURCE_ENABLE;
7633 final |= DREF_SSC1_ENABLE;
7639 /* Always enable nonspread source */
7640 val &= ~DREF_NONSPREAD_SOURCE_MASK;
7643 val |= DREF_NONSPREAD_CK505_ENABLE;
7645 val |= DREF_NONSPREAD_SOURCE_ENABLE;
7648 val &= ~DREF_SSC_SOURCE_MASK;
7649 val |= DREF_SSC_SOURCE_ENABLE;
7651 /* SSC must be turned on before enabling the CPU output */
7652 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
7653 DRM_DEBUG_KMS("Using SSC on panel\n");
7654 val |= DREF_SSC1_ENABLE;
7656 val &= ~DREF_SSC1_ENABLE;
7658 /* Get SSC going before enabling the outputs */
7659 I915_WRITE(PCH_DREF_CONTROL, val);
7660 POSTING_READ(PCH_DREF_CONTROL);
7663 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
7665 /* Enable CPU source on CPU attached eDP */
7667 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
7668 DRM_DEBUG_KMS("Using SSC on eDP\n");
7669 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
7671 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
7673 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
7675 I915_WRITE(PCH_DREF_CONTROL, val);
7676 POSTING_READ(PCH_DREF_CONTROL);
7679 DRM_DEBUG_KMS("Disabling CPU source output\n");
7681 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
7683 /* Turn off CPU output */
7684 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
7686 I915_WRITE(PCH_DREF_CONTROL, val);
7687 POSTING_READ(PCH_DREF_CONTROL);
7690 if (!using_ssc_source) {
7691 DRM_DEBUG_KMS("Disabling SSC source\n");
7693 /* Turn off the SSC source */
7694 val &= ~DREF_SSC_SOURCE_MASK;
7695 val |= DREF_SSC_SOURCE_DISABLE;
7698 val &= ~DREF_SSC1_ENABLE;
7700 I915_WRITE(PCH_DREF_CONTROL, val);
7701 POSTING_READ(PCH_DREF_CONTROL);
7706 BUG_ON(val != final);
7709 static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv)
7713 tmp = I915_READ(SOUTH_CHICKEN2);
7714 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
7715 I915_WRITE(SOUTH_CHICKEN2, tmp);
7717 if (wait_for_us(I915_READ(SOUTH_CHICKEN2) &
7718 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
7719 DRM_ERROR("FDI mPHY reset assert timeout\n");
7721 tmp = I915_READ(SOUTH_CHICKEN2);
7722 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
7723 I915_WRITE(SOUTH_CHICKEN2, tmp);
7725 if (wait_for_us((I915_READ(SOUTH_CHICKEN2) &
7726 FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100))
7727 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
7730 /* WaMPhyProgramming:hsw */
7731 static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv)
7735 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
7736 tmp &= ~(0xFF << 24);
7737 tmp |= (0x12 << 24);
7738 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
7740 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
7742 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
7744 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
7746 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
7748 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
7749 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
7750 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
7752 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
7753 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
7754 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
7756 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
7759 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
7761 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
7764 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
7766 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
7769 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
7771 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
7774 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
7776 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
7777 tmp &= ~(0xFF << 16);
7778 tmp |= (0x1C << 16);
7779 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
7781 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
7782 tmp &= ~(0xFF << 16);
7783 tmp |= (0x1C << 16);
7784 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
7786 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
7788 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
7790 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
7792 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
7794 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
7795 tmp &= ~(0xF << 28);
7797 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
7799 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
7800 tmp &= ~(0xF << 28);
7802 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
7805 /* Implements 3 different sequences from BSpec chapter "Display iCLK
7806 * Programming" based on the parameters passed:
7807 * - Sequence to enable CLKOUT_DP
7808 * - Sequence to enable CLKOUT_DP without spread
7809 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
7811 static void lpt_enable_clkout_dp(struct drm_i915_private *dev_priv,
7812 bool with_spread, bool with_fdi)
7816 if (WARN(with_fdi && !with_spread, "FDI requires downspread\n"))
7818 if (WARN(HAS_PCH_LPT_LP(dev_priv) &&
7819 with_fdi, "LP PCH doesn't have FDI\n"))
7822 mutex_lock(&dev_priv->sb_lock);
7824 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
7825 tmp &= ~SBI_SSCCTL_DISABLE;
7826 tmp |= SBI_SSCCTL_PATHALT;
7827 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
7832 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
7833 tmp &= ~SBI_SSCCTL_PATHALT;
7834 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
7837 lpt_reset_fdi_mphy(dev_priv);
7838 lpt_program_fdi_mphy(dev_priv);
7842 reg = HAS_PCH_LPT_LP(dev_priv) ? SBI_GEN0 : SBI_DBUFF0;
7843 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
7844 tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE;
7845 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
7847 mutex_unlock(&dev_priv->sb_lock);
7850 /* Sequence to disable CLKOUT_DP */
7851 static void lpt_disable_clkout_dp(struct drm_i915_private *dev_priv)
7855 mutex_lock(&dev_priv->sb_lock);
7857 reg = HAS_PCH_LPT_LP(dev_priv) ? SBI_GEN0 : SBI_DBUFF0;
7858 tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
7859 tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE;
7860 intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
7862 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
7863 if (!(tmp & SBI_SSCCTL_DISABLE)) {
7864 if (!(tmp & SBI_SSCCTL_PATHALT)) {
7865 tmp |= SBI_SSCCTL_PATHALT;
7866 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
7869 tmp |= SBI_SSCCTL_DISABLE;
7870 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
7873 mutex_unlock(&dev_priv->sb_lock);
7876 #define BEND_IDX(steps) ((50 + (steps)) / 5)
7878 static const uint16_t sscdivintphase[] = {
7879 [BEND_IDX( 50)] = 0x3B23,
7880 [BEND_IDX( 45)] = 0x3B23,
7881 [BEND_IDX( 40)] = 0x3C23,
7882 [BEND_IDX( 35)] = 0x3C23,
7883 [BEND_IDX( 30)] = 0x3D23,
7884 [BEND_IDX( 25)] = 0x3D23,
7885 [BEND_IDX( 20)] = 0x3E23,
7886 [BEND_IDX( 15)] = 0x3E23,
7887 [BEND_IDX( 10)] = 0x3F23,
7888 [BEND_IDX( 5)] = 0x3F23,
7889 [BEND_IDX( 0)] = 0x0025,
7890 [BEND_IDX( -5)] = 0x0025,
7891 [BEND_IDX(-10)] = 0x0125,
7892 [BEND_IDX(-15)] = 0x0125,
7893 [BEND_IDX(-20)] = 0x0225,
7894 [BEND_IDX(-25)] = 0x0225,
7895 [BEND_IDX(-30)] = 0x0325,
7896 [BEND_IDX(-35)] = 0x0325,
7897 [BEND_IDX(-40)] = 0x0425,
7898 [BEND_IDX(-45)] = 0x0425,
7899 [BEND_IDX(-50)] = 0x0525,
7904 * steps -50 to 50 inclusive, in steps of 5
7905 * < 0 slow down the clock, > 0 speed up the clock, 0 == no bend (135MHz)
7906 * change in clock period = -(steps / 10) * 5.787 ps
7908 static void lpt_bend_clkout_dp(struct drm_i915_private *dev_priv, int steps)
7911 int idx = BEND_IDX(steps);
7913 if (WARN_ON(steps % 5 != 0))
7916 if (WARN_ON(idx >= ARRAY_SIZE(sscdivintphase)))
7919 mutex_lock(&dev_priv->sb_lock);
7921 if (steps % 10 != 0)
7925 intel_sbi_write(dev_priv, SBI_SSCDITHPHASE, tmp, SBI_ICLK);
7927 tmp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE, SBI_ICLK);
7929 tmp |= sscdivintphase[idx];
7930 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE, tmp, SBI_ICLK);
7932 mutex_unlock(&dev_priv->sb_lock);
7937 static void lpt_init_pch_refclk(struct drm_i915_private *dev_priv)
7939 struct intel_encoder *encoder;
7940 bool has_vga = false;
7942 for_each_intel_encoder(&dev_priv->drm, encoder) {
7943 switch (encoder->type) {
7944 case INTEL_OUTPUT_ANALOG:
7953 lpt_bend_clkout_dp(dev_priv, 0);
7954 lpt_enable_clkout_dp(dev_priv, true, true);
7956 lpt_disable_clkout_dp(dev_priv);
7961 * Initialize reference clocks when the driver loads
7963 void intel_init_pch_refclk(struct drm_i915_private *dev_priv)
7965 if (HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv))
7966 ironlake_init_pch_refclk(dev_priv);
7967 else if (HAS_PCH_LPT(dev_priv))
7968 lpt_init_pch_refclk(dev_priv);
7971 static void ironlake_set_pipeconf(struct drm_crtc *crtc)
7973 struct drm_i915_private *dev_priv = to_i915(crtc->dev);
7974 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7975 int pipe = intel_crtc->pipe;
7980 switch (intel_crtc->config->pipe_bpp) {
7982 val |= PIPECONF_6BPC;
7985 val |= PIPECONF_8BPC;
7988 val |= PIPECONF_10BPC;
7991 val |= PIPECONF_12BPC;
7994 /* Case prevented by intel_choose_pipe_bpp_dither. */
7998 if (intel_crtc->config->dither)
7999 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
8001 if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
8002 val |= PIPECONF_INTERLACED_ILK;
8004 val |= PIPECONF_PROGRESSIVE;
8006 if (intel_crtc->config->limited_color_range)
8007 val |= PIPECONF_COLOR_RANGE_SELECT;
8009 I915_WRITE(PIPECONF(pipe), val);
8010 POSTING_READ(PIPECONF(pipe));
8013 static void haswell_set_pipeconf(struct drm_crtc *crtc)
8015 struct drm_i915_private *dev_priv = to_i915(crtc->dev);
8016 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8017 enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
8020 if (IS_HASWELL(dev_priv) && intel_crtc->config->dither)
8021 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
8023 if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
8024 val |= PIPECONF_INTERLACED_ILK;
8026 val |= PIPECONF_PROGRESSIVE;
8028 I915_WRITE(PIPECONF(cpu_transcoder), val);
8029 POSTING_READ(PIPECONF(cpu_transcoder));
8032 static void haswell_set_pipemisc(struct drm_crtc *crtc)
8034 struct drm_i915_private *dev_priv = to_i915(crtc->dev);
8035 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
8037 if (IS_BROADWELL(dev_priv) || INTEL_INFO(dev_priv)->gen >= 9) {
8040 switch (intel_crtc->config->pipe_bpp) {
8042 val |= PIPEMISC_DITHER_6_BPC;
8045 val |= PIPEMISC_DITHER_8_BPC;
8048 val |= PIPEMISC_DITHER_10_BPC;
8051 val |= PIPEMISC_DITHER_12_BPC;
8054 /* Case prevented by pipe_config_set_bpp. */
8058 if (intel_crtc->config->dither)
8059 val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP;
8061 I915_WRITE(PIPEMISC(intel_crtc->pipe), val);
8065 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
8068 * Account for spread spectrum to avoid
8069 * oversubscribing the link. Max center spread
8070 * is 2.5%; use 5% for safety's sake.
8072 u32 bps = target_clock * bpp * 21 / 20;
8073 return DIV_ROUND_UP(bps, link_bw * 8);
8076 static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
8078 return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
8081 static void ironlake_compute_dpll(struct intel_crtc *intel_crtc,
8082 struct intel_crtc_state *crtc_state,
8083 struct dpll *reduced_clock)
8085 struct drm_crtc *crtc = &intel_crtc->base;
8086 struct drm_device *dev = crtc->dev;
8087 struct drm_i915_private *dev_priv = to_i915(dev);
8091 /* Enable autotuning of the PLL clock (if permissible) */
8093 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
8094 if ((intel_panel_use_ssc(dev_priv) &&
8095 dev_priv->vbt.lvds_ssc_freq == 100000) ||
8096 (HAS_PCH_IBX(dev_priv) && intel_is_dual_link_lvds(dev)))
8098 } else if (crtc_state->sdvo_tv_clock)
8101 fp = i9xx_dpll_compute_fp(&crtc_state->dpll);
8103 if (ironlake_needs_fb_cb_tune(&crtc_state->dpll, factor))
8106 if (reduced_clock) {
8107 fp2 = i9xx_dpll_compute_fp(reduced_clock);
8109 if (reduced_clock->m < factor * reduced_clock->n)
8117 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS))
8118 dpll |= DPLLB_MODE_LVDS;
8120 dpll |= DPLLB_MODE_DAC_SERIAL;
8122 dpll |= (crtc_state->pixel_multiplier - 1)
8123 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
8125 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO) ||
8126 intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
8127 dpll |= DPLL_SDVO_HIGH_SPEED;
8129 if (intel_crtc_has_dp_encoder(crtc_state))
8130 dpll |= DPLL_SDVO_HIGH_SPEED;
8133 * The high speed IO clock is only really required for
8134 * SDVO/HDMI/DP, but we also enable it for CRT to make it
8135 * possible to share the DPLL between CRT and HDMI. Enabling
8136 * the clock needlessly does no real harm, except use up a
8137 * bit of power potentially.
8139 * We'll limit this to IVB with 3 pipes, since it has only two
8140 * DPLLs and so DPLL sharing is the only way to get three pipes
8141 * driving PCH ports at the same time. On SNB we could do this,
8142 * and potentially avoid enabling the second DPLL, but it's not
8143 * clear if it''s a win or loss power wise. No point in doing
8144 * this on ILK at all since it has a fixed DPLL<->pipe mapping.
8146 if (INTEL_INFO(dev_priv)->num_pipes == 3 &&
8147 intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG))
8148 dpll |= DPLL_SDVO_HIGH_SPEED;
8150 /* compute bitmask from p1 value */
8151 dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
8153 dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
8155 switch (crtc_state->dpll.p2) {
8157 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
8160 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
8163 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
8166 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
8170 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
8171 intel_panel_use_ssc(dev_priv))
8172 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
8174 dpll |= PLL_REF_INPUT_DREFCLK;
8176 dpll |= DPLL_VCO_ENABLE;
8178 crtc_state->dpll_hw_state.dpll = dpll;
8179 crtc_state->dpll_hw_state.fp0 = fp;
8180 crtc_state->dpll_hw_state.fp1 = fp2;
8183 static int ironlake_crtc_compute_clock(struct intel_crtc *crtc,
8184 struct intel_crtc_state *crtc_state)
8186 struct drm_device *dev = crtc->base.dev;
8187 struct drm_i915_private *dev_priv = to_i915(dev);
8188 struct dpll reduced_clock;
8189 bool has_reduced_clock = false;
8190 struct intel_shared_dpll *pll;
8191 const struct intel_limit *limit;
8192 int refclk = 120000;
8194 memset(&crtc_state->dpll_hw_state, 0,
8195 sizeof(crtc_state->dpll_hw_state));
8197 crtc->lowfreq_avail = false;
8199 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
8200 if (!crtc_state->has_pch_encoder)
8203 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
8204 if (intel_panel_use_ssc(dev_priv)) {
8205 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
8206 dev_priv->vbt.lvds_ssc_freq);
8207 refclk = dev_priv->vbt.lvds_ssc_freq;
8210 if (intel_is_dual_link_lvds(dev)) {
8211 if (refclk == 100000)
8212 limit = &intel_limits_ironlake_dual_lvds_100m;
8214 limit = &intel_limits_ironlake_dual_lvds;
8216 if (refclk == 100000)
8217 limit = &intel_limits_ironlake_single_lvds_100m;
8219 limit = &intel_limits_ironlake_single_lvds;
8222 limit = &intel_limits_ironlake_dac;
8225 if (!crtc_state->clock_set &&
8226 !g4x_find_best_dpll(limit, crtc_state, crtc_state->port_clock,
8227 refclk, NULL, &crtc_state->dpll)) {
8228 DRM_ERROR("Couldn't find PLL settings for mode!\n");
8232 ironlake_compute_dpll(crtc, crtc_state,
8233 has_reduced_clock ? &reduced_clock : NULL);
8235 pll = intel_get_shared_dpll(crtc, crtc_state, NULL);
8237 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
8238 pipe_name(crtc->pipe));
8242 if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
8244 crtc->lowfreq_avail = true;
8249 static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc,
8250 struct intel_link_m_n *m_n)
8252 struct drm_device *dev = crtc->base.dev;
8253 struct drm_i915_private *dev_priv = to_i915(dev);
8254 enum pipe pipe = crtc->pipe;
8256 m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe));
8257 m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe));
8258 m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe))
8260 m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe));
8261 m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe))
8262 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
8265 static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc,
8266 enum transcoder transcoder,
8267 struct intel_link_m_n *m_n,
8268 struct intel_link_m_n *m2_n2)
8270 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
8271 enum pipe pipe = crtc->pipe;
8273 if (INTEL_GEN(dev_priv) >= 5) {
8274 m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder));
8275 m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder));
8276 m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder))
8278 m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder));
8279 m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder))
8280 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
8281 /* Read M2_N2 registers only for gen < 8 (M2_N2 available for
8282 * gen < 8) and if DRRS is supported (to make sure the
8283 * registers are not unnecessarily read).
8285 if (m2_n2 && INTEL_GEN(dev_priv) < 8 &&
8286 crtc->config->has_drrs) {
8287 m2_n2->link_m = I915_READ(PIPE_LINK_M2(transcoder));
8288 m2_n2->link_n = I915_READ(PIPE_LINK_N2(transcoder));
8289 m2_n2->gmch_m = I915_READ(PIPE_DATA_M2(transcoder))
8291 m2_n2->gmch_n = I915_READ(PIPE_DATA_N2(transcoder));
8292 m2_n2->tu = ((I915_READ(PIPE_DATA_M2(transcoder))
8293 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
8296 m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe));
8297 m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe));
8298 m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe))
8300 m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe));
8301 m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe))
8302 & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
8306 void intel_dp_get_m_n(struct intel_crtc *crtc,
8307 struct intel_crtc_state *pipe_config)
8309 if (pipe_config->has_pch_encoder)
8310 intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n);
8312 intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
8313 &pipe_config->dp_m_n,
8314 &pipe_config->dp_m2_n2);
8317 static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc,
8318 struct intel_crtc_state *pipe_config)
8320 intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
8321 &pipe_config->fdi_m_n, NULL);
8324 static void skylake_get_pfit_config(struct intel_crtc *crtc,
8325 struct intel_crtc_state *pipe_config)
8327 struct drm_device *dev = crtc->base.dev;
8328 struct drm_i915_private *dev_priv = to_i915(dev);
8329 struct intel_crtc_scaler_state *scaler_state = &pipe_config->scaler_state;
8330 uint32_t ps_ctrl = 0;
8334 /* find scaler attached to this pipe */
8335 for (i = 0; i < crtc->num_scalers; i++) {
8336 ps_ctrl = I915_READ(SKL_PS_CTRL(crtc->pipe, i));
8337 if (ps_ctrl & PS_SCALER_EN && !(ps_ctrl & PS_PLANE_SEL_MASK)) {
8339 pipe_config->pch_pfit.enabled = true;
8340 pipe_config->pch_pfit.pos = I915_READ(SKL_PS_WIN_POS(crtc->pipe, i));
8341 pipe_config->pch_pfit.size = I915_READ(SKL_PS_WIN_SZ(crtc->pipe, i));
8346 scaler_state->scaler_id = id;
8348 scaler_state->scaler_users |= (1 << SKL_CRTC_INDEX);
8350 scaler_state->scaler_users &= ~(1 << SKL_CRTC_INDEX);
8355 skylake_get_initial_plane_config(struct intel_crtc *crtc,
8356 struct intel_initial_plane_config *plane_config)
8358 struct drm_device *dev = crtc->base.dev;
8359 struct drm_i915_private *dev_priv = to_i915(dev);
8360 u32 val, base, offset, stride_mult, tiling;
8361 int pipe = crtc->pipe;
8362 int fourcc, pixel_format;
8363 unsigned int aligned_height;
8364 struct drm_framebuffer *fb;
8365 struct intel_framebuffer *intel_fb;
8367 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
8369 DRM_DEBUG_KMS("failed to alloc fb\n");
8373 fb = &intel_fb->base;
8377 val = I915_READ(PLANE_CTL(pipe, 0));
8378 if (!(val & PLANE_CTL_ENABLE))
8381 pixel_format = val & PLANE_CTL_FORMAT_MASK;
8382 fourcc = skl_format_to_fourcc(pixel_format,
8383 val & PLANE_CTL_ORDER_RGBX,
8384 val & PLANE_CTL_ALPHA_MASK);
8385 fb->format = drm_format_info(fourcc);
8387 tiling = val & PLANE_CTL_TILED_MASK;
8389 case PLANE_CTL_TILED_LINEAR:
8390 fb->modifier = DRM_FORMAT_MOD_LINEAR;
8392 case PLANE_CTL_TILED_X:
8393 plane_config->tiling = I915_TILING_X;
8394 fb->modifier = I915_FORMAT_MOD_X_TILED;
8396 case PLANE_CTL_TILED_Y:
8397 fb->modifier = I915_FORMAT_MOD_Y_TILED;
8399 case PLANE_CTL_TILED_YF:
8400 fb->modifier = I915_FORMAT_MOD_Yf_TILED;
8403 MISSING_CASE(tiling);
8407 base = I915_READ(PLANE_SURF(pipe, 0)) & 0xfffff000;
8408 plane_config->base = base;
8410 offset = I915_READ(PLANE_OFFSET(pipe, 0));
8412 val = I915_READ(PLANE_SIZE(pipe, 0));
8413 fb->height = ((val >> 16) & 0xfff) + 1;
8414 fb->width = ((val >> 0) & 0x1fff) + 1;
8416 val = I915_READ(PLANE_STRIDE(pipe, 0));
8417 stride_mult = intel_fb_stride_alignment(fb, 0);
8418 fb->pitches[0] = (val & 0x3ff) * stride_mult;
8420 aligned_height = intel_fb_align_height(fb, 0, fb->height);
8422 plane_config->size = fb->pitches[0] * aligned_height;
8424 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8425 pipe_name(pipe), fb->width, fb->height,
8426 fb->format->cpp[0] * 8, base, fb->pitches[0],
8427 plane_config->size);
8429 plane_config->fb = intel_fb;
8436 static void ironlake_get_pfit_config(struct intel_crtc *crtc,
8437 struct intel_crtc_state *pipe_config)
8439 struct drm_device *dev = crtc->base.dev;
8440 struct drm_i915_private *dev_priv = to_i915(dev);
8443 tmp = I915_READ(PF_CTL(crtc->pipe));
8445 if (tmp & PF_ENABLE) {
8446 pipe_config->pch_pfit.enabled = true;
8447 pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe));
8448 pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe));
8450 /* We currently do not free assignements of panel fitters on
8451 * ivb/hsw (since we don't use the higher upscaling modes which
8452 * differentiates them) so just WARN about this case for now. */
8453 if (IS_GEN7(dev_priv)) {
8454 WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) !=
8455 PF_PIPE_SEL_IVB(crtc->pipe));
8461 ironlake_get_initial_plane_config(struct intel_crtc *crtc,
8462 struct intel_initial_plane_config *plane_config)
8464 struct drm_device *dev = crtc->base.dev;
8465 struct drm_i915_private *dev_priv = to_i915(dev);
8466 u32 val, base, offset;
8467 int pipe = crtc->pipe;
8468 int fourcc, pixel_format;
8469 unsigned int aligned_height;
8470 struct drm_framebuffer *fb;
8471 struct intel_framebuffer *intel_fb;
8473 val = I915_READ(DSPCNTR(pipe));
8474 if (!(val & DISPLAY_PLANE_ENABLE))
8477 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
8479 DRM_DEBUG_KMS("failed to alloc fb\n");
8483 fb = &intel_fb->base;
8487 if (INTEL_GEN(dev_priv) >= 4) {
8488 if (val & DISPPLANE_TILED) {
8489 plane_config->tiling = I915_TILING_X;
8490 fb->modifier = I915_FORMAT_MOD_X_TILED;
8494 pixel_format = val & DISPPLANE_PIXFORMAT_MASK;
8495 fourcc = i9xx_format_to_fourcc(pixel_format);
8496 fb->format = drm_format_info(fourcc);
8498 base = I915_READ(DSPSURF(pipe)) & 0xfffff000;
8499 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
8500 offset = I915_READ(DSPOFFSET(pipe));
8502 if (plane_config->tiling)
8503 offset = I915_READ(DSPTILEOFF(pipe));
8505 offset = I915_READ(DSPLINOFF(pipe));
8507 plane_config->base = base;
8509 val = I915_READ(PIPESRC(pipe));
8510 fb->width = ((val >> 16) & 0xfff) + 1;
8511 fb->height = ((val >> 0) & 0xfff) + 1;
8513 val = I915_READ(DSPSTRIDE(pipe));
8514 fb->pitches[0] = val & 0xffffffc0;
8516 aligned_height = intel_fb_align_height(fb, 0, fb->height);
8518 plane_config->size = fb->pitches[0] * aligned_height;
8520 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8521 pipe_name(pipe), fb->width, fb->height,
8522 fb->format->cpp[0] * 8, base, fb->pitches[0],
8523 plane_config->size);
8525 plane_config->fb = intel_fb;
8528 static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
8529 struct intel_crtc_state *pipe_config)
8531 struct drm_device *dev = crtc->base.dev;
8532 struct drm_i915_private *dev_priv = to_i915(dev);
8533 enum intel_display_power_domain power_domain;
8537 power_domain = POWER_DOMAIN_PIPE(crtc->pipe);
8538 if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
8541 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
8542 pipe_config->shared_dpll = NULL;
8545 tmp = I915_READ(PIPECONF(crtc->pipe));
8546 if (!(tmp & PIPECONF_ENABLE))
8549 switch (tmp & PIPECONF_BPC_MASK) {
8551 pipe_config->pipe_bpp = 18;
8554 pipe_config->pipe_bpp = 24;
8556 case PIPECONF_10BPC:
8557 pipe_config->pipe_bpp = 30;
8559 case PIPECONF_12BPC:
8560 pipe_config->pipe_bpp = 36;
8566 if (tmp & PIPECONF_COLOR_RANGE_SELECT)
8567 pipe_config->limited_color_range = true;
8569 if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
8570 struct intel_shared_dpll *pll;
8571 enum intel_dpll_id pll_id;
8573 pipe_config->has_pch_encoder = true;
8575 tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
8576 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
8577 FDI_DP_PORT_WIDTH_SHIFT) + 1;
8579 ironlake_get_fdi_m_n_config(crtc, pipe_config);
8581 if (HAS_PCH_IBX(dev_priv)) {
8583 * The pipe->pch transcoder and pch transcoder->pll
8586 pll_id = (enum intel_dpll_id) crtc->pipe;
8588 tmp = I915_READ(PCH_DPLL_SEL);
8589 if (tmp & TRANS_DPLLB_SEL(crtc->pipe))
8590 pll_id = DPLL_ID_PCH_PLL_B;
8592 pll_id= DPLL_ID_PCH_PLL_A;
8595 pipe_config->shared_dpll =
8596 intel_get_shared_dpll_by_id(dev_priv, pll_id);
8597 pll = pipe_config->shared_dpll;
8599 WARN_ON(!pll->funcs.get_hw_state(dev_priv, pll,
8600 &pipe_config->dpll_hw_state));
8602 tmp = pipe_config->dpll_hw_state.dpll;
8603 pipe_config->pixel_multiplier =
8604 ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK)
8605 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1;
8607 ironlake_pch_clock_get(crtc, pipe_config);
8609 pipe_config->pixel_multiplier = 1;
8612 intel_get_pipe_timings(crtc, pipe_config);
8613 intel_get_pipe_src_size(crtc, pipe_config);
8615 ironlake_get_pfit_config(crtc, pipe_config);
8620 intel_display_power_put(dev_priv, power_domain);
8625 static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
8627 struct drm_device *dev = &dev_priv->drm;
8628 struct intel_crtc *crtc;
8630 for_each_intel_crtc(dev, crtc)
8631 I915_STATE_WARN(crtc->active, "CRTC for pipe %c enabled\n",
8632 pipe_name(crtc->pipe));
8634 I915_STATE_WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n");
8635 I915_STATE_WARN(I915_READ(SPLL_CTL) & SPLL_PLL_ENABLE, "SPLL enabled\n");
8636 I915_STATE_WARN(I915_READ(WRPLL_CTL(0)) & WRPLL_PLL_ENABLE, "WRPLL1 enabled\n");
8637 I915_STATE_WARN(I915_READ(WRPLL_CTL(1)) & WRPLL_PLL_ENABLE, "WRPLL2 enabled\n");
8638 I915_STATE_WARN(I915_READ(PP_STATUS(0)) & PP_ON, "Panel power on\n");
8639 I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE,
8640 "CPU PWM1 enabled\n");
8641 if (IS_HASWELL(dev_priv))
8642 I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE,
8643 "CPU PWM2 enabled\n");
8644 I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE,
8645 "PCH PWM1 enabled\n");
8646 I915_STATE_WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
8647 "Utility pin enabled\n");
8648 I915_STATE_WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n");
8651 * In theory we can still leave IRQs enabled, as long as only the HPD
8652 * interrupts remain enabled. We used to check for that, but since it's
8653 * gen-specific and since we only disable LCPLL after we fully disable
8654 * the interrupts, the check below should be enough.
8656 I915_STATE_WARN(intel_irqs_enabled(dev_priv), "IRQs enabled\n");
8659 static uint32_t hsw_read_dcomp(struct drm_i915_private *dev_priv)
8661 if (IS_HASWELL(dev_priv))
8662 return I915_READ(D_COMP_HSW);
8664 return I915_READ(D_COMP_BDW);
8667 static void hsw_write_dcomp(struct drm_i915_private *dev_priv, uint32_t val)
8669 if (IS_HASWELL(dev_priv)) {
8670 mutex_lock(&dev_priv->rps.hw_lock);
8671 if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP,
8673 DRM_DEBUG_KMS("Failed to write to D_COMP\n");
8674 mutex_unlock(&dev_priv->rps.hw_lock);
8676 I915_WRITE(D_COMP_BDW, val);
8677 POSTING_READ(D_COMP_BDW);
8682 * This function implements pieces of two sequences from BSpec:
8683 * - Sequence for display software to disable LCPLL
8684 * - Sequence for display software to allow package C8+
8685 * The steps implemented here are just the steps that actually touch the LCPLL
8686 * register. Callers should take care of disabling all the display engine
8687 * functions, doing the mode unset, fixing interrupts, etc.
8689 static void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
8690 bool switch_to_fclk, bool allow_power_down)
8694 assert_can_disable_lcpll(dev_priv);
8696 val = I915_READ(LCPLL_CTL);
8698 if (switch_to_fclk) {
8699 val |= LCPLL_CD_SOURCE_FCLK;
8700 I915_WRITE(LCPLL_CTL, val);
8702 if (wait_for_us(I915_READ(LCPLL_CTL) &
8703 LCPLL_CD_SOURCE_FCLK_DONE, 1))
8704 DRM_ERROR("Switching to FCLK failed\n");
8706 val = I915_READ(LCPLL_CTL);
8709 val |= LCPLL_PLL_DISABLE;
8710 I915_WRITE(LCPLL_CTL, val);
8711 POSTING_READ(LCPLL_CTL);
8713 if (intel_wait_for_register(dev_priv, LCPLL_CTL, LCPLL_PLL_LOCK, 0, 1))
8714 DRM_ERROR("LCPLL still locked\n");
8716 val = hsw_read_dcomp(dev_priv);
8717 val |= D_COMP_COMP_DISABLE;
8718 hsw_write_dcomp(dev_priv, val);
8721 if (wait_for((hsw_read_dcomp(dev_priv) & D_COMP_RCOMP_IN_PROGRESS) == 0,
8723 DRM_ERROR("D_COMP RCOMP still in progress\n");
8725 if (allow_power_down) {
8726 val = I915_READ(LCPLL_CTL);
8727 val |= LCPLL_POWER_DOWN_ALLOW;
8728 I915_WRITE(LCPLL_CTL, val);
8729 POSTING_READ(LCPLL_CTL);
8734 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
8737 static void hsw_restore_lcpll(struct drm_i915_private *dev_priv)
8741 val = I915_READ(LCPLL_CTL);
8743 if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK |
8744 LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK)
8748 * Make sure we're not on PC8 state before disabling PC8, otherwise
8749 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
8751 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
8753 if (val & LCPLL_POWER_DOWN_ALLOW) {
8754 val &= ~LCPLL_POWER_DOWN_ALLOW;
8755 I915_WRITE(LCPLL_CTL, val);
8756 POSTING_READ(LCPLL_CTL);
8759 val = hsw_read_dcomp(dev_priv);
8760 val |= D_COMP_COMP_FORCE;
8761 val &= ~D_COMP_COMP_DISABLE;
8762 hsw_write_dcomp(dev_priv, val);
8764 val = I915_READ(LCPLL_CTL);
8765 val &= ~LCPLL_PLL_DISABLE;
8766 I915_WRITE(LCPLL_CTL, val);
8768 if (intel_wait_for_register(dev_priv,
8769 LCPLL_CTL, LCPLL_PLL_LOCK, LCPLL_PLL_LOCK,
8771 DRM_ERROR("LCPLL not locked yet\n");
8773 if (val & LCPLL_CD_SOURCE_FCLK) {
8774 val = I915_READ(LCPLL_CTL);
8775 val &= ~LCPLL_CD_SOURCE_FCLK;
8776 I915_WRITE(LCPLL_CTL, val);
8778 if (wait_for_us((I915_READ(LCPLL_CTL) &
8779 LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
8780 DRM_ERROR("Switching back to LCPLL failed\n");
8783 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
8784 intel_update_cdclk(dev_priv);
8788 * Package states C8 and deeper are really deep PC states that can only be
8789 * reached when all the devices on the system allow it, so even if the graphics
8790 * device allows PC8+, it doesn't mean the system will actually get to these
8791 * states. Our driver only allows PC8+ when going into runtime PM.
8793 * The requirements for PC8+ are that all the outputs are disabled, the power
8794 * well is disabled and most interrupts are disabled, and these are also
8795 * requirements for runtime PM. When these conditions are met, we manually do
8796 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
8797 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
8800 * When we really reach PC8 or deeper states (not just when we allow it) we lose
8801 * the state of some registers, so when we come back from PC8+ we need to
8802 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
8803 * need to take care of the registers kept by RC6. Notice that this happens even
8804 * if we don't put the device in PCI D3 state (which is what currently happens
8805 * because of the runtime PM support).
8807 * For more, read "Display Sequences for Package C8" on the hardware
8810 void hsw_enable_pc8(struct drm_i915_private *dev_priv)
8814 DRM_DEBUG_KMS("Enabling package C8+\n");
8816 if (HAS_PCH_LPT_LP(dev_priv)) {
8817 val = I915_READ(SOUTH_DSPCLK_GATE_D);
8818 val &= ~PCH_LP_PARTITION_LEVEL_DISABLE;
8819 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
8822 lpt_disable_clkout_dp(dev_priv);
8823 hsw_disable_lcpll(dev_priv, true, true);
8826 void hsw_disable_pc8(struct drm_i915_private *dev_priv)
8830 DRM_DEBUG_KMS("Disabling package C8+\n");
8832 hsw_restore_lcpll(dev_priv);
8833 lpt_init_pch_refclk(dev_priv);
8835 if (HAS_PCH_LPT_LP(dev_priv)) {
8836 val = I915_READ(SOUTH_DSPCLK_GATE_D);
8837 val |= PCH_LP_PARTITION_LEVEL_DISABLE;
8838 I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
8842 static int haswell_crtc_compute_clock(struct intel_crtc *crtc,
8843 struct intel_crtc_state *crtc_state)
8845 if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI)) {
8846 struct intel_encoder *encoder =
8847 intel_ddi_get_crtc_new_encoder(crtc_state);
8849 if (!intel_get_shared_dpll(crtc, crtc_state, encoder)) {
8850 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
8851 pipe_name(crtc->pipe));
8856 crtc->lowfreq_avail = false;
8861 static void bxt_get_ddi_pll(struct drm_i915_private *dev_priv,
8863 struct intel_crtc_state *pipe_config)
8865 enum intel_dpll_id id;
8869 id = DPLL_ID_SKL_DPLL0;
8872 id = DPLL_ID_SKL_DPLL1;
8875 id = DPLL_ID_SKL_DPLL2;
8878 DRM_ERROR("Incorrect port type\n");
8882 pipe_config->shared_dpll = intel_get_shared_dpll_by_id(dev_priv, id);
8885 static void skylake_get_ddi_pll(struct drm_i915_private *dev_priv,
8887 struct intel_crtc_state *pipe_config)
8889 enum intel_dpll_id id;
8892 temp = I915_READ(DPLL_CTRL2) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port);
8893 id = temp >> (port * 3 + 1);
8895 if (WARN_ON(id < SKL_DPLL0 || id > SKL_DPLL3))
8898 pipe_config->shared_dpll = intel_get_shared_dpll_by_id(dev_priv, id);
8901 static void haswell_get_ddi_pll(struct drm_i915_private *dev_priv,
8903 struct intel_crtc_state *pipe_config)
8905 enum intel_dpll_id id;
8906 uint32_t ddi_pll_sel = I915_READ(PORT_CLK_SEL(port));
8908 switch (ddi_pll_sel) {
8909 case PORT_CLK_SEL_WRPLL1:
8910 id = DPLL_ID_WRPLL1;
8912 case PORT_CLK_SEL_WRPLL2:
8913 id = DPLL_ID_WRPLL2;
8915 case PORT_CLK_SEL_SPLL:
8918 case PORT_CLK_SEL_LCPLL_810:
8919 id = DPLL_ID_LCPLL_810;
8921 case PORT_CLK_SEL_LCPLL_1350:
8922 id = DPLL_ID_LCPLL_1350;
8924 case PORT_CLK_SEL_LCPLL_2700:
8925 id = DPLL_ID_LCPLL_2700;
8928 MISSING_CASE(ddi_pll_sel);
8930 case PORT_CLK_SEL_NONE:
8934 pipe_config->shared_dpll = intel_get_shared_dpll_by_id(dev_priv, id);
8937 static bool hsw_get_transcoder_state(struct intel_crtc *crtc,
8938 struct intel_crtc_state *pipe_config,
8939 u64 *power_domain_mask)
8941 struct drm_device *dev = crtc->base.dev;
8942 struct drm_i915_private *dev_priv = to_i915(dev);
8943 enum intel_display_power_domain power_domain;
8947 * The pipe->transcoder mapping is fixed with the exception of the eDP
8948 * transcoder handled below.
8950 pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
8953 * XXX: Do intel_display_power_get_if_enabled before reading this (for
8954 * consistency and less surprising code; it's in always on power).
8956 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
8957 if (tmp & TRANS_DDI_FUNC_ENABLE) {
8958 enum pipe trans_edp_pipe;
8959 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
8961 WARN(1, "unknown pipe linked to edp transcoder\n");
8962 case TRANS_DDI_EDP_INPUT_A_ONOFF:
8963 case TRANS_DDI_EDP_INPUT_A_ON:
8964 trans_edp_pipe = PIPE_A;
8966 case TRANS_DDI_EDP_INPUT_B_ONOFF:
8967 trans_edp_pipe = PIPE_B;
8969 case TRANS_DDI_EDP_INPUT_C_ONOFF:
8970 trans_edp_pipe = PIPE_C;
8974 if (trans_edp_pipe == crtc->pipe)
8975 pipe_config->cpu_transcoder = TRANSCODER_EDP;
8978 power_domain = POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder);
8979 if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
8981 *power_domain_mask |= BIT_ULL(power_domain);
8983 tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder));
8985 return tmp & PIPECONF_ENABLE;
8988 static bool bxt_get_dsi_transcoder_state(struct intel_crtc *crtc,
8989 struct intel_crtc_state *pipe_config,
8990 u64 *power_domain_mask)
8992 struct drm_device *dev = crtc->base.dev;
8993 struct drm_i915_private *dev_priv = to_i915(dev);
8994 enum intel_display_power_domain power_domain;
8996 enum transcoder cpu_transcoder;
8999 for_each_port_masked(port, BIT(PORT_A) | BIT(PORT_C)) {
9001 cpu_transcoder = TRANSCODER_DSI_A;
9003 cpu_transcoder = TRANSCODER_DSI_C;
9005 power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
9006 if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
9008 *power_domain_mask |= BIT_ULL(power_domain);
9011 * The PLL needs to be enabled with a valid divider
9012 * configuration, otherwise accessing DSI registers will hang
9013 * the machine. See BSpec North Display Engine
9014 * registers/MIPI[BXT]. We can break out here early, since we
9015 * need the same DSI PLL to be enabled for both DSI ports.
9017 if (!intel_dsi_pll_is_enabled(dev_priv))
9020 /* XXX: this works for video mode only */
9021 tmp = I915_READ(BXT_MIPI_PORT_CTRL(port));
9022 if (!(tmp & DPI_ENABLE))
9025 tmp = I915_READ(MIPI_CTRL(port));
9026 if ((tmp & BXT_PIPE_SELECT_MASK) != BXT_PIPE_SELECT(crtc->pipe))
9029 pipe_config->cpu_transcoder = cpu_transcoder;
9033 return transcoder_is_dsi(pipe_config->cpu_transcoder);
9036 static void haswell_get_ddi_port_state(struct intel_crtc *crtc,
9037 struct intel_crtc_state *pipe_config)
9039 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
9040 struct intel_shared_dpll *pll;
9044 tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
9046 port = (tmp & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT;
9048 if (IS_GEN9_BC(dev_priv))
9049 skylake_get_ddi_pll(dev_priv, port, pipe_config);
9050 else if (IS_GEN9_LP(dev_priv))
9051 bxt_get_ddi_pll(dev_priv, port, pipe_config);
9053 haswell_get_ddi_pll(dev_priv, port, pipe_config);
9055 pll = pipe_config->shared_dpll;
9057 WARN_ON(!pll->funcs.get_hw_state(dev_priv, pll,
9058 &pipe_config->dpll_hw_state));
9062 * Haswell has only FDI/PCH transcoder A. It is which is connected to
9063 * DDI E. So just check whether this pipe is wired to DDI E and whether
9064 * the PCH transcoder is on.
9066 if (INTEL_GEN(dev_priv) < 9 &&
9067 (port == PORT_E) && I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
9068 pipe_config->has_pch_encoder = true;
9070 tmp = I915_READ(FDI_RX_CTL(PIPE_A));
9071 pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
9072 FDI_DP_PORT_WIDTH_SHIFT) + 1;
9074 ironlake_get_fdi_m_n_config(crtc, pipe_config);
9078 static bool haswell_get_pipe_config(struct intel_crtc *crtc,
9079 struct intel_crtc_state *pipe_config)
9081 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
9082 enum intel_display_power_domain power_domain;
9083 u64 power_domain_mask;
9086 power_domain = POWER_DOMAIN_PIPE(crtc->pipe);
9087 if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
9089 power_domain_mask = BIT_ULL(power_domain);
9091 pipe_config->shared_dpll = NULL;
9093 active = hsw_get_transcoder_state(crtc, pipe_config, &power_domain_mask);
9095 if (IS_GEN9_LP(dev_priv) &&
9096 bxt_get_dsi_transcoder_state(crtc, pipe_config, &power_domain_mask)) {
9104 if (!transcoder_is_dsi(pipe_config->cpu_transcoder)) {
9105 haswell_get_ddi_port_state(crtc, pipe_config);
9106 intel_get_pipe_timings(crtc, pipe_config);
9109 intel_get_pipe_src_size(crtc, pipe_config);
9111 pipe_config->gamma_mode =
9112 I915_READ(GAMMA_MODE(crtc->pipe)) & GAMMA_MODE_MODE_MASK;
9114 if (INTEL_GEN(dev_priv) >= 9) {
9115 intel_crtc_init_scalers(crtc, pipe_config);
9117 pipe_config->scaler_state.scaler_id = -1;
9118 pipe_config->scaler_state.scaler_users &= ~(1 << SKL_CRTC_INDEX);
9121 power_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
9122 if (intel_display_power_get_if_enabled(dev_priv, power_domain)) {
9123 power_domain_mask |= BIT_ULL(power_domain);
9124 if (INTEL_GEN(dev_priv) >= 9)
9125 skylake_get_pfit_config(crtc, pipe_config);
9127 ironlake_get_pfit_config(crtc, pipe_config);
9130 if (IS_HASWELL(dev_priv))
9131 pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) &&
9132 (I915_READ(IPS_CTL) & IPS_ENABLE);
9134 if (pipe_config->cpu_transcoder != TRANSCODER_EDP &&
9135 !transcoder_is_dsi(pipe_config->cpu_transcoder)) {
9136 pipe_config->pixel_multiplier =
9137 I915_READ(PIPE_MULT(pipe_config->cpu_transcoder)) + 1;
9139 pipe_config->pixel_multiplier = 1;
9143 for_each_power_domain(power_domain, power_domain_mask)
9144 intel_display_power_put(dev_priv, power_domain);
9149 static u32 i845_cursor_ctl(const struct intel_crtc_state *crtc_state,
9150 const struct intel_plane_state *plane_state)
9152 unsigned int width = plane_state->base.crtc_w;
9153 unsigned int stride = roundup_pow_of_two(width) * 4;
9157 WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n",
9168 return CURSOR_ENABLE |
9169 CURSOR_GAMMA_ENABLE |
9170 CURSOR_FORMAT_ARGB |
9171 CURSOR_STRIDE(stride);
9174 static void i845_update_cursor(struct drm_crtc *crtc, u32 base,
9175 const struct intel_plane_state *plane_state)
9177 struct drm_device *dev = crtc->dev;
9178 struct drm_i915_private *dev_priv = to_i915(dev);
9179 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
9180 uint32_t cntl = 0, size = 0;
9182 if (plane_state && plane_state->base.visible) {
9183 unsigned int width = plane_state->base.crtc_w;
9184 unsigned int height = plane_state->base.crtc_h;
9186 cntl = plane_state->ctl;
9187 size = (height << 12) | width;
9190 if (intel_crtc->cursor_cntl != 0 &&
9191 (intel_crtc->cursor_base != base ||
9192 intel_crtc->cursor_size != size ||
9193 intel_crtc->cursor_cntl != cntl)) {
9194 /* On these chipsets we can only modify the base/size/stride
9195 * whilst the cursor is disabled.
9197 I915_WRITE_FW(CURCNTR(PIPE_A), 0);
9198 POSTING_READ_FW(CURCNTR(PIPE_A));
9199 intel_crtc->cursor_cntl = 0;
9202 if (intel_crtc->cursor_base != base) {
9203 I915_WRITE_FW(CURBASE(PIPE_A), base);
9204 intel_crtc->cursor_base = base;
9207 if (intel_crtc->cursor_size != size) {
9208 I915_WRITE_FW(CURSIZE, size);
9209 intel_crtc->cursor_size = size;
9212 if (intel_crtc->cursor_cntl != cntl) {
9213 I915_WRITE_FW(CURCNTR(PIPE_A), cntl);
9214 POSTING_READ_FW(CURCNTR(PIPE_A));
9215 intel_crtc->cursor_cntl = cntl;
9219 static u32 i9xx_cursor_ctl(const struct intel_crtc_state *crtc_state,
9220 const struct intel_plane_state *plane_state)
9222 struct drm_i915_private *dev_priv =
9223 to_i915(plane_state->base.plane->dev);
9224 struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
9225 enum pipe pipe = crtc->pipe;
9228 cntl = MCURSOR_GAMMA_ENABLE;
9230 if (HAS_DDI(dev_priv))
9231 cntl |= CURSOR_PIPE_CSC_ENABLE;
9233 cntl |= pipe << 28; /* Connect to correct pipe */
9235 switch (plane_state->base.crtc_w) {
9237 cntl |= CURSOR_MODE_64_ARGB_AX;
9240 cntl |= CURSOR_MODE_128_ARGB_AX;
9243 cntl |= CURSOR_MODE_256_ARGB_AX;
9246 MISSING_CASE(plane_state->base.crtc_w);
9250 if (plane_state->base.rotation & DRM_ROTATE_180)
9251 cntl |= CURSOR_ROTATE_180;
9256 static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base,
9257 const struct intel_plane_state *plane_state)
9259 struct drm_device *dev = crtc->dev;
9260 struct drm_i915_private *dev_priv = to_i915(dev);
9261 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
9262 int pipe = intel_crtc->pipe;
9265 if (plane_state && plane_state->base.visible)
9266 cntl = plane_state->ctl;
9268 if (intel_crtc->cursor_cntl != cntl) {
9269 I915_WRITE_FW(CURCNTR(pipe), cntl);
9270 POSTING_READ_FW(CURCNTR(pipe));
9271 intel_crtc->cursor_cntl = cntl;
9274 /* and commit changes on next vblank */
9275 I915_WRITE_FW(CURBASE(pipe), base);
9276 POSTING_READ_FW(CURBASE(pipe));
9278 intel_crtc->cursor_base = base;
9281 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
9282 static void intel_crtc_update_cursor(struct drm_crtc *crtc,
9283 const struct intel_plane_state *plane_state)
9285 struct drm_device *dev = crtc->dev;
9286 struct drm_i915_private *dev_priv = to_i915(dev);
9287 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
9288 int pipe = intel_crtc->pipe;
9289 u32 base = intel_crtc->cursor_addr;
9290 unsigned long irqflags;
9294 int x = plane_state->base.crtc_x;
9295 int y = plane_state->base.crtc_y;
9298 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
9301 pos |= x << CURSOR_X_SHIFT;
9304 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
9307 pos |= y << CURSOR_Y_SHIFT;
9309 /* ILK+ do this automagically */
9310 if (HAS_GMCH_DISPLAY(dev_priv) &&
9311 plane_state->base.rotation & DRM_ROTATE_180) {
9312 base += (plane_state->base.crtc_h *
9313 plane_state->base.crtc_w - 1) * 4;
9317 spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
9319 I915_WRITE_FW(CURPOS(pipe), pos);
9321 if (IS_I845G(dev_priv) || IS_I865G(dev_priv))
9322 i845_update_cursor(crtc, base, plane_state);
9324 i9xx_update_cursor(crtc, base, plane_state);
9326 spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
9329 static bool cursor_size_ok(struct drm_i915_private *dev_priv,
9330 uint32_t width, uint32_t height)
9332 if (width == 0 || height == 0)
9336 * 845g/865g are special in that they are only limited by
9337 * the width of their cursors, the height is arbitrary up to
9338 * the precision of the register. Everything else requires
9339 * square cursors, limited to a few power-of-two sizes.
9341 if (IS_I845G(dev_priv) || IS_I865G(dev_priv)) {
9342 if ((width & 63) != 0)
9345 if (width > (IS_I845G(dev_priv) ? 64 : 512))
9351 switch (width | height) {
9354 if (IS_GEN2(dev_priv))
9366 /* VESA 640x480x72Hz mode to set on the pipe */
9367 static struct drm_display_mode load_detect_mode = {
9368 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
9369 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
9372 struct drm_framebuffer *
9373 intel_framebuffer_create(struct drm_i915_gem_object *obj,
9374 struct drm_mode_fb_cmd2 *mode_cmd)
9376 struct intel_framebuffer *intel_fb;
9379 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
9381 return ERR_PTR(-ENOMEM);
9383 ret = intel_framebuffer_init(intel_fb, obj, mode_cmd);
9387 return &intel_fb->base;
9391 return ERR_PTR(ret);
9395 intel_framebuffer_pitch_for_width(int width, int bpp)
9397 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
9398 return ALIGN(pitch, 64);
9402 intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
9404 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
9405 return PAGE_ALIGN(pitch * mode->vdisplay);
9408 static struct drm_framebuffer *
9409 intel_framebuffer_create_for_mode(struct drm_device *dev,
9410 struct drm_display_mode *mode,
9413 struct drm_framebuffer *fb;
9414 struct drm_i915_gem_object *obj;
9415 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
9417 obj = i915_gem_object_create(to_i915(dev),
9418 intel_framebuffer_size_for_mode(mode, bpp));
9420 return ERR_CAST(obj);
9422 mode_cmd.width = mode->hdisplay;
9423 mode_cmd.height = mode->vdisplay;
9424 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
9426 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
9428 fb = intel_framebuffer_create(obj, &mode_cmd);
9430 i915_gem_object_put(obj);
9435 static struct drm_framebuffer *
9436 mode_fits_in_fbdev(struct drm_device *dev,
9437 struct drm_display_mode *mode)
9439 #ifdef CONFIG_DRM_FBDEV_EMULATION
9440 struct drm_i915_private *dev_priv = to_i915(dev);
9441 struct drm_i915_gem_object *obj;
9442 struct drm_framebuffer *fb;
9444 if (!dev_priv->fbdev)
9447 if (!dev_priv->fbdev->fb)
9450 obj = dev_priv->fbdev->fb->obj;
9453 fb = &dev_priv->fbdev->fb->base;
9454 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
9455 fb->format->cpp[0] * 8))
9458 if (obj->base.size < mode->vdisplay * fb->pitches[0])
9461 drm_framebuffer_reference(fb);
9468 static int intel_modeset_setup_plane_state(struct drm_atomic_state *state,
9469 struct drm_crtc *crtc,
9470 struct drm_display_mode *mode,
9471 struct drm_framebuffer *fb,
9474 struct drm_plane_state *plane_state;
9475 int hdisplay, vdisplay;
9478 plane_state = drm_atomic_get_plane_state(state, crtc->primary);
9479 if (IS_ERR(plane_state))
9480 return PTR_ERR(plane_state);
9483 drm_mode_get_hv_timing(mode, &hdisplay, &vdisplay);
9485 hdisplay = vdisplay = 0;
9487 ret = drm_atomic_set_crtc_for_plane(plane_state, fb ? crtc : NULL);
9490 drm_atomic_set_fb_for_plane(plane_state, fb);
9491 plane_state->crtc_x = 0;
9492 plane_state->crtc_y = 0;
9493 plane_state->crtc_w = hdisplay;
9494 plane_state->crtc_h = vdisplay;
9495 plane_state->src_x = x << 16;
9496 plane_state->src_y = y << 16;
9497 plane_state->src_w = hdisplay << 16;
9498 plane_state->src_h = vdisplay << 16;
9503 int intel_get_load_detect_pipe(struct drm_connector *connector,
9504 struct drm_display_mode *mode,
9505 struct intel_load_detect_pipe *old,
9506 struct drm_modeset_acquire_ctx *ctx)
9508 struct intel_crtc *intel_crtc;
9509 struct intel_encoder *intel_encoder =
9510 intel_attached_encoder(connector);
9511 struct drm_crtc *possible_crtc;
9512 struct drm_encoder *encoder = &intel_encoder->base;
9513 struct drm_crtc *crtc = NULL;
9514 struct drm_device *dev = encoder->dev;
9515 struct drm_i915_private *dev_priv = to_i915(dev);
9516 struct drm_framebuffer *fb;
9517 struct drm_mode_config *config = &dev->mode_config;
9518 struct drm_atomic_state *state = NULL, *restore_state = NULL;
9519 struct drm_connector_state *connector_state;
9520 struct intel_crtc_state *crtc_state;
9523 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
9524 connector->base.id, connector->name,
9525 encoder->base.id, encoder->name);
9527 old->restore_state = NULL;
9529 WARN_ON(!drm_modeset_is_locked(&config->connection_mutex));
9532 * Algorithm gets a little messy:
9534 * - if the connector already has an assigned crtc, use it (but make
9535 * sure it's on first)
9537 * - try to find the first unused crtc that can drive this connector,
9538 * and use that if we find one
9541 /* See if we already have a CRTC for this connector */
9542 if (connector->state->crtc) {
9543 crtc = connector->state->crtc;
9545 ret = drm_modeset_lock(&crtc->mutex, ctx);
9549 /* Make sure the crtc and connector are running */
9553 /* Find an unused one (if possible) */
9554 for_each_crtc(dev, possible_crtc) {
9556 if (!(encoder->possible_crtcs & (1 << i)))
9559 ret = drm_modeset_lock(&possible_crtc->mutex, ctx);
9563 if (possible_crtc->state->enable) {
9564 drm_modeset_unlock(&possible_crtc->mutex);
9568 crtc = possible_crtc;
9573 * If we didn't find an unused CRTC, don't use any.
9576 DRM_DEBUG_KMS("no pipe available for load-detect\n");
9581 intel_crtc = to_intel_crtc(crtc);
9583 ret = drm_modeset_lock(&crtc->primary->mutex, ctx);
9587 state = drm_atomic_state_alloc(dev);
9588 restore_state = drm_atomic_state_alloc(dev);
9589 if (!state || !restore_state) {
9594 state->acquire_ctx = ctx;
9595 restore_state->acquire_ctx = ctx;
9597 connector_state = drm_atomic_get_connector_state(state, connector);
9598 if (IS_ERR(connector_state)) {
9599 ret = PTR_ERR(connector_state);
9603 ret = drm_atomic_set_crtc_for_connector(connector_state, crtc);
9607 crtc_state = intel_atomic_get_crtc_state(state, intel_crtc);
9608 if (IS_ERR(crtc_state)) {
9609 ret = PTR_ERR(crtc_state);
9613 crtc_state->base.active = crtc_state->base.enable = true;
9616 mode = &load_detect_mode;
9618 /* We need a framebuffer large enough to accommodate all accesses
9619 * that the plane may generate whilst we perform load detection.
9620 * We can not rely on the fbcon either being present (we get called
9621 * during its initialisation to detect all boot displays, or it may
9622 * not even exist) or that it is large enough to satisfy the
9625 fb = mode_fits_in_fbdev(dev, mode);
9627 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
9628 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
9630 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
9632 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
9636 ret = intel_modeset_setup_plane_state(state, crtc, mode, fb, 0, 0);
9640 drm_framebuffer_unreference(fb);
9642 ret = drm_atomic_set_mode_for_crtc(&crtc_state->base, mode);
9646 ret = PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(restore_state, connector));
9648 ret = PTR_ERR_OR_ZERO(drm_atomic_get_crtc_state(restore_state, crtc));
9650 ret = PTR_ERR_OR_ZERO(drm_atomic_get_plane_state(restore_state, crtc->primary));
9652 DRM_DEBUG_KMS("Failed to create a copy of old state to restore: %i\n", ret);
9656 ret = drm_atomic_commit(state);
9658 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
9662 old->restore_state = restore_state;
9663 drm_atomic_state_put(state);
9665 /* let the connector get through one full cycle before testing */
9666 intel_wait_for_vblank(dev_priv, intel_crtc->pipe);
9671 drm_atomic_state_put(state);
9674 if (restore_state) {
9675 drm_atomic_state_put(restore_state);
9676 restore_state = NULL;
9679 if (ret == -EDEADLK)
9685 void intel_release_load_detect_pipe(struct drm_connector *connector,
9686 struct intel_load_detect_pipe *old,
9687 struct drm_modeset_acquire_ctx *ctx)
9689 struct intel_encoder *intel_encoder =
9690 intel_attached_encoder(connector);
9691 struct drm_encoder *encoder = &intel_encoder->base;
9692 struct drm_atomic_state *state = old->restore_state;
9695 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
9696 connector->base.id, connector->name,
9697 encoder->base.id, encoder->name);
9702 ret = drm_atomic_helper_commit_duplicated_state(state, ctx);
9704 DRM_DEBUG_KMS("Couldn't release load detect pipe: %i\n", ret);
9705 drm_atomic_state_put(state);
9708 static int i9xx_pll_refclk(struct drm_device *dev,
9709 const struct intel_crtc_state *pipe_config)
9711 struct drm_i915_private *dev_priv = to_i915(dev);
9712 u32 dpll = pipe_config->dpll_hw_state.dpll;
9714 if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN)
9715 return dev_priv->vbt.lvds_ssc_freq;
9716 else if (HAS_PCH_SPLIT(dev_priv))
9718 else if (!IS_GEN2(dev_priv))
9724 /* Returns the clock of the currently programmed mode of the given pipe. */
9725 static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
9726 struct intel_crtc_state *pipe_config)
9728 struct drm_device *dev = crtc->base.dev;
9729 struct drm_i915_private *dev_priv = to_i915(dev);
9730 int pipe = pipe_config->cpu_transcoder;
9731 u32 dpll = pipe_config->dpll_hw_state.dpll;
9735 int refclk = i9xx_pll_refclk(dev, pipe_config);
9737 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
9738 fp = pipe_config->dpll_hw_state.fp0;
9740 fp = pipe_config->dpll_hw_state.fp1;
9742 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
9743 if (IS_PINEVIEW(dev_priv)) {
9744 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
9745 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
9747 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
9748 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
9751 if (!IS_GEN2(dev_priv)) {
9752 if (IS_PINEVIEW(dev_priv))
9753 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
9754 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
9756 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
9757 DPLL_FPA01_P1_POST_DIV_SHIFT);
9759 switch (dpll & DPLL_MODE_MASK) {
9760 case DPLLB_MODE_DAC_SERIAL:
9761 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
9764 case DPLLB_MODE_LVDS:
9765 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
9769 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
9770 "mode\n", (int)(dpll & DPLL_MODE_MASK));
9774 if (IS_PINEVIEW(dev_priv))
9775 port_clock = pnv_calc_dpll_params(refclk, &clock);
9777 port_clock = i9xx_calc_dpll_params(refclk, &clock);
9779 u32 lvds = IS_I830(dev_priv) ? 0 : I915_READ(LVDS);
9780 bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN);
9783 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
9784 DPLL_FPA01_P1_POST_DIV_SHIFT);
9786 if (lvds & LVDS_CLKB_POWER_UP)
9791 if (dpll & PLL_P1_DIVIDE_BY_TWO)
9794 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
9795 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
9797 if (dpll & PLL_P2_DIVIDE_BY_4)
9803 port_clock = i9xx_calc_dpll_params(refclk, &clock);
9807 * This value includes pixel_multiplier. We will use
9808 * port_clock to compute adjusted_mode.crtc_clock in the
9809 * encoder's get_config() function.
9811 pipe_config->port_clock = port_clock;
9814 int intel_dotclock_calculate(int link_freq,
9815 const struct intel_link_m_n *m_n)
9818 * The calculation for the data clock is:
9819 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
9820 * But we want to avoid losing precison if possible, so:
9821 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
9823 * and the link clock is simpler:
9824 * link_clock = (m * link_clock) / n
9830 return div_u64((u64)m_n->link_m * link_freq, m_n->link_n);
9833 static void ironlake_pch_clock_get(struct intel_crtc *crtc,
9834 struct intel_crtc_state *pipe_config)
9836 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
9838 /* read out port_clock from the DPLL */
9839 i9xx_crtc_clock_get(crtc, pipe_config);
9842 * In case there is an active pipe without active ports,
9843 * we may need some idea for the dotclock anyway.
9844 * Calculate one based on the FDI configuration.
9846 pipe_config->base.adjusted_mode.crtc_clock =
9847 intel_dotclock_calculate(intel_fdi_link_freq(dev_priv, pipe_config),
9848 &pipe_config->fdi_m_n);
9851 /** Returns the currently programmed mode of the given pipe. */
9852 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
9853 struct drm_crtc *crtc)
9855 struct drm_i915_private *dev_priv = to_i915(dev);
9856 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
9857 enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
9858 struct drm_display_mode *mode;
9859 struct intel_crtc_state *pipe_config;
9860 int htot = I915_READ(HTOTAL(cpu_transcoder));
9861 int hsync = I915_READ(HSYNC(cpu_transcoder));
9862 int vtot = I915_READ(VTOTAL(cpu_transcoder));
9863 int vsync = I915_READ(VSYNC(cpu_transcoder));
9864 enum pipe pipe = intel_crtc->pipe;
9866 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
9870 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
9877 * Construct a pipe_config sufficient for getting the clock info
9878 * back out of crtc_clock_get.
9880 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
9881 * to use a real value here instead.
9883 pipe_config->cpu_transcoder = (enum transcoder) pipe;
9884 pipe_config->pixel_multiplier = 1;
9885 pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(pipe));
9886 pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(pipe));
9887 pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(pipe));
9888 i9xx_crtc_clock_get(intel_crtc, pipe_config);
9890 mode->clock = pipe_config->port_clock / pipe_config->pixel_multiplier;
9891 mode->hdisplay = (htot & 0xffff) + 1;
9892 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
9893 mode->hsync_start = (hsync & 0xffff) + 1;
9894 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
9895 mode->vdisplay = (vtot & 0xffff) + 1;
9896 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
9897 mode->vsync_start = (vsync & 0xffff) + 1;
9898 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
9900 drm_mode_set_name(mode);
9907 static void intel_crtc_destroy(struct drm_crtc *crtc)
9909 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
9910 struct drm_device *dev = crtc->dev;
9911 struct intel_flip_work *work;
9913 spin_lock_irq(&dev->event_lock);
9914 work = intel_crtc->flip_work;
9915 intel_crtc->flip_work = NULL;
9916 spin_unlock_irq(&dev->event_lock);
9919 cancel_work_sync(&work->mmio_work);
9920 cancel_work_sync(&work->unpin_work);
9924 drm_crtc_cleanup(crtc);
9929 static void intel_unpin_work_fn(struct work_struct *__work)
9931 struct intel_flip_work *work =
9932 container_of(__work, struct intel_flip_work, unpin_work);
9933 struct intel_crtc *crtc = to_intel_crtc(work->crtc);
9934 struct drm_device *dev = crtc->base.dev;
9935 struct drm_plane *primary = crtc->base.primary;
9937 if (is_mmio_work(work))
9938 flush_work(&work->mmio_work);
9940 mutex_lock(&dev->struct_mutex);
9941 intel_unpin_fb_vma(work->old_vma);
9942 i915_gem_object_put(work->pending_flip_obj);
9943 mutex_unlock(&dev->struct_mutex);
9945 i915_gem_request_put(work->flip_queued_req);
9947 intel_frontbuffer_flip_complete(to_i915(dev),
9948 to_intel_plane(primary)->frontbuffer_bit);
9949 intel_fbc_post_update(crtc);
9950 drm_framebuffer_unreference(work->old_fb);
9952 BUG_ON(atomic_read(&crtc->unpin_work_count) == 0);
9953 atomic_dec(&crtc->unpin_work_count);
9958 /* Is 'a' after or equal to 'b'? */
9959 static bool g4x_flip_count_after_eq(u32 a, u32 b)
9961 return !((a - b) & 0x80000000);
9964 static bool __pageflip_finished_cs(struct intel_crtc *crtc,
9965 struct intel_flip_work *work)
9967 struct drm_device *dev = crtc->base.dev;
9968 struct drm_i915_private *dev_priv = to_i915(dev);
9970 if (abort_flip_on_reset(crtc))
9974 * The relevant registers doen't exist on pre-ctg.
9975 * As the flip done interrupt doesn't trigger for mmio
9976 * flips on gmch platforms, a flip count check isn't
9977 * really needed there. But since ctg has the registers,
9978 * include it in the check anyway.
9980 if (INTEL_GEN(dev_priv) < 5 && !IS_G4X(dev_priv))
9984 * BDW signals flip done immediately if the plane
9985 * is disabled, even if the plane enable is already
9986 * armed to occur at the next vblank :(
9990 * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
9991 * used the same base address. In that case the mmio flip might
9992 * have completed, but the CS hasn't even executed the flip yet.
9994 * A flip count check isn't enough as the CS might have updated
9995 * the base address just after start of vblank, but before we
9996 * managed to process the interrupt. This means we'd complete the
9999 * Combining both checks should get us a good enough result. It may
10000 * still happen that the CS flip has been executed, but has not
10001 * yet actually completed. But in case the base address is the same
10002 * anyway, we don't really care.
10004 return (I915_READ(DSPSURFLIVE(crtc->plane)) & ~0xfff) ==
10005 crtc->flip_work->gtt_offset &&
10006 g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_G4X(crtc->pipe)),
10007 crtc->flip_work->flip_count);
10011 __pageflip_finished_mmio(struct intel_crtc *crtc,
10012 struct intel_flip_work *work)
10015 * MMIO work completes when vblank is different from
10016 * flip_queued_vblank.
10018 * Reset counter value doesn't matter, this is handled by
10019 * i915_wait_request finishing early, so no need to handle
10022 return intel_crtc_get_vblank_counter(crtc) != work->flip_queued_vblank;
10026 static bool pageflip_finished(struct intel_crtc *crtc,
10027 struct intel_flip_work *work)
10029 if (!atomic_read(&work->pending))
10034 if (is_mmio_work(work))
10035 return __pageflip_finished_mmio(crtc, work);
10037 return __pageflip_finished_cs(crtc, work);
10040 void intel_finish_page_flip_cs(struct drm_i915_private *dev_priv, int pipe)
10042 struct drm_device *dev = &dev_priv->drm;
10043 struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
10044 struct intel_flip_work *work;
10045 unsigned long flags;
10047 /* Ignore early vblank irqs */
10052 * This is called both by irq handlers and the reset code (to complete
10053 * lost pageflips) so needs the full irqsave spinlocks.
10055 spin_lock_irqsave(&dev->event_lock, flags);
10056 work = crtc->flip_work;
10058 if (work != NULL &&
10059 !is_mmio_work(work) &&
10060 pageflip_finished(crtc, work))
10061 page_flip_completed(crtc);
10063 spin_unlock_irqrestore(&dev->event_lock, flags);
10066 void intel_finish_page_flip_mmio(struct drm_i915_private *dev_priv, int pipe)
10068 struct drm_device *dev = &dev_priv->drm;
10069 struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
10070 struct intel_flip_work *work;
10071 unsigned long flags;
10073 /* Ignore early vblank irqs */
10078 * This is called both by irq handlers and the reset code (to complete
10079 * lost pageflips) so needs the full irqsave spinlocks.
10081 spin_lock_irqsave(&dev->event_lock, flags);
10082 work = crtc->flip_work;
10084 if (work != NULL &&
10085 is_mmio_work(work) &&
10086 pageflip_finished(crtc, work))
10087 page_flip_completed(crtc);
10089 spin_unlock_irqrestore(&dev->event_lock, flags);
10092 static inline void intel_mark_page_flip_active(struct intel_crtc *crtc,
10093 struct intel_flip_work *work)
10095 work->flip_queued_vblank = intel_crtc_get_vblank_counter(crtc);
10097 /* Ensure that the work item is consistent when activating it ... */
10098 smp_mb__before_atomic();
10099 atomic_set(&work->pending, 1);
10102 static int intel_gen2_queue_flip(struct drm_device *dev,
10103 struct drm_crtc *crtc,
10104 struct drm_framebuffer *fb,
10105 struct drm_i915_gem_object *obj,
10106 struct drm_i915_gem_request *req,
10109 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
10110 u32 flip_mask, *cs;
10112 cs = intel_ring_begin(req, 6);
10114 return PTR_ERR(cs);
10116 /* Can't queue multiple flips, so wait for the previous
10117 * one to finish before executing the next.
10119 if (intel_crtc->plane)
10120 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
10122 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
10123 *cs++ = MI_WAIT_FOR_EVENT | flip_mask;
10125 *cs++ = MI_DISPLAY_FLIP | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane);
10126 *cs++ = fb->pitches[0];
10127 *cs++ = intel_crtc->flip_work->gtt_offset;
10128 *cs++ = 0; /* aux display base address, unused */
10133 static int intel_gen3_queue_flip(struct drm_device *dev,
10134 struct drm_crtc *crtc,
10135 struct drm_framebuffer *fb,
10136 struct drm_i915_gem_object *obj,
10137 struct drm_i915_gem_request *req,
10140 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
10141 u32 flip_mask, *cs;
10143 cs = intel_ring_begin(req, 6);
10145 return PTR_ERR(cs);
10147 if (intel_crtc->plane)
10148 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
10150 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
10151 *cs++ = MI_WAIT_FOR_EVENT | flip_mask;
10153 *cs++ = MI_DISPLAY_FLIP_I915 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane);
10154 *cs++ = fb->pitches[0];
10155 *cs++ = intel_crtc->flip_work->gtt_offset;
10161 static int intel_gen4_queue_flip(struct drm_device *dev,
10162 struct drm_crtc *crtc,
10163 struct drm_framebuffer *fb,
10164 struct drm_i915_gem_object *obj,
10165 struct drm_i915_gem_request *req,
10168 struct drm_i915_private *dev_priv = to_i915(dev);
10169 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
10170 u32 pf, pipesrc, *cs;
10172 cs = intel_ring_begin(req, 4);
10174 return PTR_ERR(cs);
10176 /* i965+ uses the linear or tiled offsets from the
10177 * Display Registers (which do not change across a page-flip)
10178 * so we need only reprogram the base address.
10180 *cs++ = MI_DISPLAY_FLIP | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane);
10181 *cs++ = fb->pitches[0];
10182 *cs++ = intel_crtc->flip_work->gtt_offset |
10183 intel_fb_modifier_to_tiling(fb->modifier);
10185 /* XXX Enabling the panel-fitter across page-flip is so far
10186 * untested on non-native modes, so ignore it for now.
10187 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
10190 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
10191 *cs++ = pf | pipesrc;
10196 static int intel_gen6_queue_flip(struct drm_device *dev,
10197 struct drm_crtc *crtc,
10198 struct drm_framebuffer *fb,
10199 struct drm_i915_gem_object *obj,
10200 struct drm_i915_gem_request *req,
10203 struct drm_i915_private *dev_priv = to_i915(dev);
10204 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
10205 u32 pf, pipesrc, *cs;
10207 cs = intel_ring_begin(req, 4);
10209 return PTR_ERR(cs);
10211 *cs++ = MI_DISPLAY_FLIP | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane);
10212 *cs++ = fb->pitches[0] | intel_fb_modifier_to_tiling(fb->modifier);
10213 *cs++ = intel_crtc->flip_work->gtt_offset;
10215 /* Contrary to the suggestions in the documentation,
10216 * "Enable Panel Fitter" does not seem to be required when page
10217 * flipping with a non-native mode, and worse causes a normal
10219 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
10222 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
10223 *cs++ = pf | pipesrc;
10228 static int intel_gen7_queue_flip(struct drm_device *dev,
10229 struct drm_crtc *crtc,
10230 struct drm_framebuffer *fb,
10231 struct drm_i915_gem_object *obj,
10232 struct drm_i915_gem_request *req,
10235 struct drm_i915_private *dev_priv = to_i915(dev);
10236 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
10237 u32 *cs, plane_bit = 0;
10240 switch (intel_crtc->plane) {
10242 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
10245 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
10248 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
10251 WARN_ONCE(1, "unknown plane in flip command\n");
10256 if (req->engine->id == RCS) {
10259 * On Gen 8, SRM is now taking an extra dword to accommodate
10260 * 48bits addresses, and we need a NOOP for the batch size to
10263 if (IS_GEN8(dev_priv))
10268 * BSpec MI_DISPLAY_FLIP for IVB:
10269 * "The full packet must be contained within the same cache line."
10271 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
10272 * cacheline, if we ever start emitting more commands before
10273 * the MI_DISPLAY_FLIP we may need to first emit everything else,
10274 * then do the cacheline alignment, and finally emit the
10277 ret = intel_ring_cacheline_align(req);
10281 cs = intel_ring_begin(req, len);
10283 return PTR_ERR(cs);
10285 /* Unmask the flip-done completion message. Note that the bspec says that
10286 * we should do this for both the BCS and RCS, and that we must not unmask
10287 * more than one flip event at any time (or ensure that one flip message
10288 * can be sent by waiting for flip-done prior to queueing new flips).
10289 * Experimentation says that BCS works despite DERRMR masking all
10290 * flip-done completion events and that unmasking all planes at once
10291 * for the RCS also doesn't appear to drop events. Setting the DERRMR
10292 * to zero does lead to lockups within MI_DISPLAY_FLIP.
10294 if (req->engine->id == RCS) {
10295 *cs++ = MI_LOAD_REGISTER_IMM(1);
10296 *cs++ = i915_mmio_reg_offset(DERRMR);
10297 *cs++ = ~(DERRMR_PIPEA_PRI_FLIP_DONE |
10298 DERRMR_PIPEB_PRI_FLIP_DONE |
10299 DERRMR_PIPEC_PRI_FLIP_DONE);
10300 if (IS_GEN8(dev_priv))
10301 *cs++ = MI_STORE_REGISTER_MEM_GEN8 |
10302 MI_SRM_LRM_GLOBAL_GTT;
10304 *cs++ = MI_STORE_REGISTER_MEM | MI_SRM_LRM_GLOBAL_GTT;
10305 *cs++ = i915_mmio_reg_offset(DERRMR);
10306 *cs++ = i915_ggtt_offset(req->engine->scratch) + 256;
10307 if (IS_GEN8(dev_priv)) {
10313 *cs++ = MI_DISPLAY_FLIP_I915 | plane_bit;
10314 *cs++ = fb->pitches[0] | intel_fb_modifier_to_tiling(fb->modifier);
10315 *cs++ = intel_crtc->flip_work->gtt_offset;
10321 static bool use_mmio_flip(struct intel_engine_cs *engine,
10322 struct drm_i915_gem_object *obj)
10325 * This is not being used for older platforms, because
10326 * non-availability of flip done interrupt forces us to use
10327 * CS flips. Older platforms derive flip done using some clever
10328 * tricks involving the flip_pending status bits and vblank irqs.
10329 * So using MMIO flips there would disrupt this mechanism.
10332 if (engine == NULL)
10335 if (INTEL_GEN(engine->i915) < 5)
10338 if (i915.use_mmio_flip < 0)
10340 else if (i915.use_mmio_flip > 0)
10342 else if (i915.enable_execlists)
10345 return engine != i915_gem_object_last_write_engine(obj);
10348 static void skl_do_mmio_flip(struct intel_crtc *intel_crtc,
10349 unsigned int rotation,
10350 struct intel_flip_work *work)
10352 struct drm_device *dev = intel_crtc->base.dev;
10353 struct drm_i915_private *dev_priv = to_i915(dev);
10354 struct drm_framebuffer *fb = intel_crtc->base.primary->fb;
10355 const enum pipe pipe = intel_crtc->pipe;
10356 u32 ctl, stride = skl_plane_stride(fb, 0, rotation);
10358 ctl = I915_READ(PLANE_CTL(pipe, 0));
10359 ctl &= ~PLANE_CTL_TILED_MASK;
10360 switch (fb->modifier) {
10361 case DRM_FORMAT_MOD_LINEAR:
10363 case I915_FORMAT_MOD_X_TILED:
10364 ctl |= PLANE_CTL_TILED_X;
10366 case I915_FORMAT_MOD_Y_TILED:
10367 ctl |= PLANE_CTL_TILED_Y;
10369 case I915_FORMAT_MOD_Yf_TILED:
10370 ctl |= PLANE_CTL_TILED_YF;
10373 MISSING_CASE(fb->modifier);
10377 * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on
10378 * PLANE_SURF updates, the update is then guaranteed to be atomic.
10380 I915_WRITE(PLANE_CTL(pipe, 0), ctl);
10381 I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
10383 I915_WRITE(PLANE_SURF(pipe, 0), work->gtt_offset);
10384 POSTING_READ(PLANE_SURF(pipe, 0));
10387 static void ilk_do_mmio_flip(struct intel_crtc *intel_crtc,
10388 struct intel_flip_work *work)
10390 struct drm_device *dev = intel_crtc->base.dev;
10391 struct drm_i915_private *dev_priv = to_i915(dev);
10392 struct drm_framebuffer *fb = intel_crtc->base.primary->fb;
10393 i915_reg_t reg = DSPCNTR(intel_crtc->plane);
10396 dspcntr = I915_READ(reg);
10398 if (fb->modifier == I915_FORMAT_MOD_X_TILED)
10399 dspcntr |= DISPPLANE_TILED;
10401 dspcntr &= ~DISPPLANE_TILED;
10403 I915_WRITE(reg, dspcntr);
10405 I915_WRITE(DSPSURF(intel_crtc->plane), work->gtt_offset);
10406 POSTING_READ(DSPSURF(intel_crtc->plane));
10409 static void intel_mmio_flip_work_func(struct work_struct *w)
10411 struct intel_flip_work *work =
10412 container_of(w, struct intel_flip_work, mmio_work);
10413 struct intel_crtc *crtc = to_intel_crtc(work->crtc);
10414 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
10415 struct intel_framebuffer *intel_fb =
10416 to_intel_framebuffer(crtc->base.primary->fb);
10417 struct drm_i915_gem_object *obj = intel_fb->obj;
10419 WARN_ON(i915_gem_object_wait(obj, 0, MAX_SCHEDULE_TIMEOUT, NULL) < 0);
10421 intel_pipe_update_start(crtc);
10423 if (INTEL_GEN(dev_priv) >= 9)
10424 skl_do_mmio_flip(crtc, work->rotation, work);
10426 /* use_mmio_flip() retricts MMIO flips to ilk+ */
10427 ilk_do_mmio_flip(crtc, work);
10429 intel_pipe_update_end(crtc, work);
10432 static int intel_default_queue_flip(struct drm_device *dev,
10433 struct drm_crtc *crtc,
10434 struct drm_framebuffer *fb,
10435 struct drm_i915_gem_object *obj,
10436 struct drm_i915_gem_request *req,
10442 static bool __pageflip_stall_check_cs(struct drm_i915_private *dev_priv,
10443 struct intel_crtc *intel_crtc,
10444 struct intel_flip_work *work)
10448 if (!atomic_read(&work->pending))
10453 vblank = intel_crtc_get_vblank_counter(intel_crtc);
10454 if (work->flip_ready_vblank == 0) {
10455 if (work->flip_queued_req &&
10456 !i915_gem_request_completed(work->flip_queued_req))
10459 work->flip_ready_vblank = vblank;
10462 if (vblank - work->flip_ready_vblank < 3)
10465 /* Potential stall - if we see that the flip has happened,
10466 * assume a missed interrupt. */
10467 if (INTEL_GEN(dev_priv) >= 4)
10468 addr = I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc->plane)));
10470 addr = I915_READ(DSPADDR(intel_crtc->plane));
10472 /* There is a potential issue here with a false positive after a flip
10473 * to the same address. We could address this by checking for a
10474 * non-incrementing frame counter.
10476 return addr == work->gtt_offset;
10479 void intel_check_page_flip(struct drm_i915_private *dev_priv, int pipe)
10481 struct drm_device *dev = &dev_priv->drm;
10482 struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
10483 struct intel_flip_work *work;
10485 WARN_ON(!in_interrupt());
10490 spin_lock(&dev->event_lock);
10491 work = crtc->flip_work;
10493 if (work != NULL && !is_mmio_work(work) &&
10494 __pageflip_stall_check_cs(dev_priv, crtc, work)) {
10496 "Kicking stuck page flip: queued at %d, now %d\n",
10497 work->flip_queued_vblank, intel_crtc_get_vblank_counter(crtc));
10498 page_flip_completed(crtc);
10502 if (work != NULL && !is_mmio_work(work) &&
10503 intel_crtc_get_vblank_counter(crtc) - work->flip_queued_vblank > 1)
10504 intel_queue_rps_boost_for_request(work->flip_queued_req);
10505 spin_unlock(&dev->event_lock);
10509 static int intel_crtc_page_flip(struct drm_crtc *crtc,
10510 struct drm_framebuffer *fb,
10511 struct drm_pending_vblank_event *event,
10512 uint32_t page_flip_flags)
10514 struct drm_device *dev = crtc->dev;
10515 struct drm_i915_private *dev_priv = to_i915(dev);
10516 struct drm_framebuffer *old_fb = crtc->primary->fb;
10517 struct drm_i915_gem_object *obj = intel_fb_obj(fb);
10518 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
10519 struct drm_plane *primary = crtc->primary;
10520 enum pipe pipe = intel_crtc->pipe;
10521 struct intel_flip_work *work;
10522 struct intel_engine_cs *engine;
10524 struct drm_i915_gem_request *request;
10525 struct i915_vma *vma;
10529 * drm_mode_page_flip_ioctl() should already catch this, but double
10530 * check to be safe. In the future we may enable pageflipping from
10531 * a disabled primary plane.
10533 if (WARN_ON(intel_fb_obj(old_fb) == NULL))
10536 /* Can't change pixel format via MI display flips. */
10537 if (fb->format != crtc->primary->fb->format)
10541 * TILEOFF/LINOFF registers can't be changed via MI display flips.
10542 * Note that pitch changes could also affect these register.
10544 if (INTEL_GEN(dev_priv) > 3 &&
10545 (fb->offsets[0] != crtc->primary->fb->offsets[0] ||
10546 fb->pitches[0] != crtc->primary->fb->pitches[0]))
10549 if (i915_terminally_wedged(&dev_priv->gpu_error))
10552 work = kzalloc(sizeof(*work), GFP_KERNEL);
10556 work->event = event;
10558 work->old_fb = old_fb;
10559 INIT_WORK(&work->unpin_work, intel_unpin_work_fn);
10561 ret = drm_crtc_vblank_get(crtc);
10565 /* We borrow the event spin lock for protecting flip_work */
10566 spin_lock_irq(&dev->event_lock);
10567 if (intel_crtc->flip_work) {
10568 /* Before declaring the flip queue wedged, check if
10569 * the hardware completed the operation behind our backs.
10571 if (pageflip_finished(intel_crtc, intel_crtc->flip_work)) {
10572 DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n");
10573 page_flip_completed(intel_crtc);
10575 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
10576 spin_unlock_irq(&dev->event_lock);
10578 drm_crtc_vblank_put(crtc);
10583 intel_crtc->flip_work = work;
10584 spin_unlock_irq(&dev->event_lock);
10586 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
10587 flush_workqueue(dev_priv->wq);
10589 /* Reference the objects for the scheduled work. */
10590 drm_framebuffer_reference(work->old_fb);
10592 crtc->primary->fb = fb;
10593 update_state_fb(crtc->primary);
10595 work->pending_flip_obj = i915_gem_object_get(obj);
10597 ret = i915_mutex_lock_interruptible(dev);
10601 intel_crtc->reset_count = i915_reset_count(&dev_priv->gpu_error);
10602 if (i915_reset_backoff_or_wedged(&dev_priv->gpu_error)) {
10607 atomic_inc(&intel_crtc->unpin_work_count);
10609 if (INTEL_GEN(dev_priv) >= 5 || IS_G4X(dev_priv))
10610 work->flip_count = I915_READ(PIPE_FLIPCOUNT_G4X(pipe)) + 1;
10612 if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
10613 engine = dev_priv->engine[BCS];
10614 if (fb->modifier != old_fb->modifier)
10615 /* vlv: DISPLAY_FLIP fails to change tiling */
10617 } else if (IS_IVYBRIDGE(dev_priv) || IS_HASWELL(dev_priv)) {
10618 engine = dev_priv->engine[BCS];
10619 } else if (INTEL_GEN(dev_priv) >= 7) {
10620 engine = i915_gem_object_last_write_engine(obj);
10621 if (engine == NULL || engine->id != RCS)
10622 engine = dev_priv->engine[BCS];
10624 engine = dev_priv->engine[RCS];
10627 mmio_flip = use_mmio_flip(engine, obj);
10629 vma = intel_pin_and_fence_fb_obj(fb, primary->state->rotation);
10631 ret = PTR_ERR(vma);
10632 goto cleanup_pending;
10635 work->old_vma = to_intel_plane_state(primary->state)->vma;
10636 to_intel_plane_state(primary->state)->vma = vma;
10638 work->gtt_offset = i915_ggtt_offset(vma) + intel_crtc->dspaddr_offset;
10639 work->rotation = crtc->primary->state->rotation;
10642 * There's the potential that the next frame will not be compatible with
10643 * FBC, so we want to call pre_update() before the actual page flip.
10644 * The problem is that pre_update() caches some information about the fb
10645 * object, so we want to do this only after the object is pinned. Let's
10646 * be on the safe side and do this immediately before scheduling the
10649 intel_fbc_pre_update(intel_crtc, intel_crtc->config,
10650 to_intel_plane_state(primary->state));
10653 INIT_WORK(&work->mmio_work, intel_mmio_flip_work_func);
10654 queue_work(system_unbound_wq, &work->mmio_work);
10656 request = i915_gem_request_alloc(engine,
10657 dev_priv->kernel_context);
10658 if (IS_ERR(request)) {
10659 ret = PTR_ERR(request);
10660 goto cleanup_unpin;
10663 ret = i915_gem_request_await_object(request, obj, false);
10665 goto cleanup_request;
10667 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, request,
10670 goto cleanup_request;
10672 intel_mark_page_flip_active(intel_crtc, work);
10674 work->flip_queued_req = i915_gem_request_get(request);
10675 i915_add_request(request);
10678 i915_gem_object_wait_priority(obj, 0, I915_PRIORITY_DISPLAY);
10679 i915_gem_track_fb(intel_fb_obj(old_fb), obj,
10680 to_intel_plane(primary)->frontbuffer_bit);
10681 mutex_unlock(&dev->struct_mutex);
10683 intel_frontbuffer_flip_prepare(to_i915(dev),
10684 to_intel_plane(primary)->frontbuffer_bit);
10686 trace_i915_flip_request(intel_crtc->plane, obj);
10691 i915_add_request(request);
10693 to_intel_plane_state(primary->state)->vma = work->old_vma;
10694 intel_unpin_fb_vma(vma);
10696 atomic_dec(&intel_crtc->unpin_work_count);
10698 mutex_unlock(&dev->struct_mutex);
10700 crtc->primary->fb = old_fb;
10701 update_state_fb(crtc->primary);
10703 i915_gem_object_put(obj);
10704 drm_framebuffer_unreference(work->old_fb);
10706 spin_lock_irq(&dev->event_lock);
10707 intel_crtc->flip_work = NULL;
10708 spin_unlock_irq(&dev->event_lock);
10710 drm_crtc_vblank_put(crtc);
10715 struct drm_atomic_state *state;
10716 struct drm_plane_state *plane_state;
10719 state = drm_atomic_state_alloc(dev);
10722 state->acquire_ctx = dev->mode_config.acquire_ctx;
10725 plane_state = drm_atomic_get_plane_state(state, primary);
10726 ret = PTR_ERR_OR_ZERO(plane_state);
10728 drm_atomic_set_fb_for_plane(plane_state, fb);
10730 ret = drm_atomic_set_crtc_for_plane(plane_state, crtc);
10732 ret = drm_atomic_commit(state);
10735 if (ret == -EDEADLK) {
10736 drm_modeset_backoff(state->acquire_ctx);
10737 drm_atomic_state_clear(state);
10741 drm_atomic_state_put(state);
10743 if (ret == 0 && event) {
10744 spin_lock_irq(&dev->event_lock);
10745 drm_crtc_send_vblank_event(crtc, event);
10746 spin_unlock_irq(&dev->event_lock);
10754 * intel_wm_need_update - Check whether watermarks need updating
10755 * @plane: drm plane
10756 * @state: new plane state
10758 * Check current plane state versus the new one to determine whether
10759 * watermarks need to be recalculated.
10761 * Returns true or false.
10763 static bool intel_wm_need_update(struct drm_plane *plane,
10764 struct drm_plane_state *state)
10766 struct intel_plane_state *new = to_intel_plane_state(state);
10767 struct intel_plane_state *cur = to_intel_plane_state(plane->state);
10769 /* Update watermarks on tiling or size changes. */
10770 if (new->base.visible != cur->base.visible)
10773 if (!cur->base.fb || !new->base.fb)
10776 if (cur->base.fb->modifier != new->base.fb->modifier ||
10777 cur->base.rotation != new->base.rotation ||
10778 drm_rect_width(&new->base.src) != drm_rect_width(&cur->base.src) ||
10779 drm_rect_height(&new->base.src) != drm_rect_height(&cur->base.src) ||
10780 drm_rect_width(&new->base.dst) != drm_rect_width(&cur->base.dst) ||
10781 drm_rect_height(&new->base.dst) != drm_rect_height(&cur->base.dst))
10787 static bool needs_scaling(struct intel_plane_state *state)
10789 int src_w = drm_rect_width(&state->base.src) >> 16;
10790 int src_h = drm_rect_height(&state->base.src) >> 16;
10791 int dst_w = drm_rect_width(&state->base.dst);
10792 int dst_h = drm_rect_height(&state->base.dst);
10794 return (src_w != dst_w || src_h != dst_h);
10797 int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
10798 struct drm_plane_state *plane_state)
10800 struct intel_crtc_state *pipe_config = to_intel_crtc_state(crtc_state);
10801 struct drm_crtc *crtc = crtc_state->crtc;
10802 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
10803 struct intel_plane *plane = to_intel_plane(plane_state->plane);
10804 struct drm_device *dev = crtc->dev;
10805 struct drm_i915_private *dev_priv = to_i915(dev);
10806 struct intel_plane_state *old_plane_state =
10807 to_intel_plane_state(plane->base.state);
10808 bool mode_changed = needs_modeset(crtc_state);
10809 bool was_crtc_enabled = crtc->state->active;
10810 bool is_crtc_enabled = crtc_state->active;
10811 bool turn_off, turn_on, visible, was_visible;
10812 struct drm_framebuffer *fb = plane_state->fb;
10815 if (INTEL_GEN(dev_priv) >= 9 && plane->id != PLANE_CURSOR) {
10816 ret = skl_update_scaler_plane(
10817 to_intel_crtc_state(crtc_state),
10818 to_intel_plane_state(plane_state));
10823 was_visible = old_plane_state->base.visible;
10824 visible = plane_state->visible;
10826 if (!was_crtc_enabled && WARN_ON(was_visible))
10827 was_visible = false;
10830 * Visibility is calculated as if the crtc was on, but
10831 * after scaler setup everything depends on it being off
10832 * when the crtc isn't active.
10834 * FIXME this is wrong for watermarks. Watermarks should also
10835 * be computed as if the pipe would be active. Perhaps move
10836 * per-plane wm computation to the .check_plane() hook, and
10837 * only combine the results from all planes in the current place?
10839 if (!is_crtc_enabled) {
10840 plane_state->visible = visible = false;
10841 to_intel_crtc_state(crtc_state)->active_planes &= ~BIT(plane->id);
10844 if (!was_visible && !visible)
10847 if (fb != old_plane_state->base.fb)
10848 pipe_config->fb_changed = true;
10850 turn_off = was_visible && (!visible || mode_changed);
10851 turn_on = visible && (!was_visible || mode_changed);
10853 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] has [PLANE:%d:%s] with fb %i\n",
10854 intel_crtc->base.base.id, intel_crtc->base.name,
10855 plane->base.base.id, plane->base.name,
10856 fb ? fb->base.id : -1);
10858 DRM_DEBUG_ATOMIC("[PLANE:%d:%s] visible %i -> %i, off %i, on %i, ms %i\n",
10859 plane->base.base.id, plane->base.name,
10860 was_visible, visible,
10861 turn_off, turn_on, mode_changed);
10864 if (INTEL_GEN(dev_priv) < 5)
10865 pipe_config->update_wm_pre = true;
10867 /* must disable cxsr around plane enable/disable */
10868 if (plane->id != PLANE_CURSOR)
10869 pipe_config->disable_cxsr = true;
10870 } else if (turn_off) {
10871 if (INTEL_GEN(dev_priv) < 5)
10872 pipe_config->update_wm_post = true;
10874 /* must disable cxsr around plane enable/disable */
10875 if (plane->id != PLANE_CURSOR)
10876 pipe_config->disable_cxsr = true;
10877 } else if (intel_wm_need_update(&plane->base, plane_state)) {
10878 if (INTEL_GEN(dev_priv) < 5) {
10879 /* FIXME bollocks */
10880 pipe_config->update_wm_pre = true;
10881 pipe_config->update_wm_post = true;
10885 if (visible || was_visible)
10886 pipe_config->fb_bits |= plane->frontbuffer_bit;
10889 * WaCxSRDisabledForSpriteScaling:ivb
10891 * cstate->update_wm was already set above, so this flag will
10892 * take effect when we commit and program watermarks.
10894 if (plane->id == PLANE_SPRITE0 && IS_IVYBRIDGE(dev_priv) &&
10895 needs_scaling(to_intel_plane_state(plane_state)) &&
10896 !needs_scaling(old_plane_state))
10897 pipe_config->disable_lp_wm = true;
10902 static bool encoders_cloneable(const struct intel_encoder *a,
10903 const struct intel_encoder *b)
10905 /* masks could be asymmetric, so check both ways */
10906 return a == b || (a->cloneable & (1 << b->type) &&
10907 b->cloneable & (1 << a->type));
10910 static bool check_single_encoder_cloning(struct drm_atomic_state *state,
10911 struct intel_crtc *crtc,
10912 struct intel_encoder *encoder)
10914 struct intel_encoder *source_encoder;
10915 struct drm_connector *connector;
10916 struct drm_connector_state *connector_state;
10919 for_each_new_connector_in_state(state, connector, connector_state, i) {
10920 if (connector_state->crtc != &crtc->base)
10924 to_intel_encoder(connector_state->best_encoder);
10925 if (!encoders_cloneable(encoder, source_encoder))
10932 static int intel_crtc_atomic_check(struct drm_crtc *crtc,
10933 struct drm_crtc_state *crtc_state)
10935 struct drm_device *dev = crtc->dev;
10936 struct drm_i915_private *dev_priv = to_i915(dev);
10937 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
10938 struct intel_crtc_state *pipe_config =
10939 to_intel_crtc_state(crtc_state);
10940 struct drm_atomic_state *state = crtc_state->state;
10942 bool mode_changed = needs_modeset(crtc_state);
10944 if (mode_changed && !crtc_state->active)
10945 pipe_config->update_wm_post = true;
10947 if (mode_changed && crtc_state->enable &&
10948 dev_priv->display.crtc_compute_clock &&
10949 !WARN_ON(pipe_config->shared_dpll)) {
10950 ret = dev_priv->display.crtc_compute_clock(intel_crtc,
10956 if (crtc_state->color_mgmt_changed) {
10957 ret = intel_color_check(crtc, crtc_state);
10962 * Changing color management on Intel hardware is
10963 * handled as part of planes update.
10965 crtc_state->planes_changed = true;
10969 if (dev_priv->display.compute_pipe_wm) {
10970 ret = dev_priv->display.compute_pipe_wm(pipe_config);
10972 DRM_DEBUG_KMS("Target pipe watermarks are invalid\n");
10977 if (dev_priv->display.compute_intermediate_wm &&
10978 !to_intel_atomic_state(state)->skip_intermediate_wm) {
10979 if (WARN_ON(!dev_priv->display.compute_pipe_wm))
10983 * Calculate 'intermediate' watermarks that satisfy both the
10984 * old state and the new state. We can program these
10987 ret = dev_priv->display.compute_intermediate_wm(dev,
10991 DRM_DEBUG_KMS("No valid intermediate pipe watermarks are possible\n");
10994 } else if (dev_priv->display.compute_intermediate_wm) {
10995 if (HAS_PCH_SPLIT(dev_priv) && INTEL_GEN(dev_priv) < 9)
10996 pipe_config->wm.ilk.intermediate = pipe_config->wm.ilk.optimal;
10999 if (INTEL_GEN(dev_priv) >= 9) {
11001 ret = skl_update_scaler_crtc(pipe_config);
11004 ret = intel_atomic_setup_scalers(dev_priv, intel_crtc,
11011 static const struct drm_crtc_helper_funcs intel_helper_funcs = {
11012 .atomic_begin = intel_begin_crtc_commit,
11013 .atomic_flush = intel_finish_crtc_commit,
11014 .atomic_check = intel_crtc_atomic_check,
11017 static void intel_modeset_update_connector_atomic_state(struct drm_device *dev)
11019 struct intel_connector *connector;
11020 struct drm_connector_list_iter conn_iter;
11022 drm_connector_list_iter_begin(dev, &conn_iter);
11023 for_each_intel_connector_iter(connector, &conn_iter) {
11024 if (connector->base.state->crtc)
11025 drm_connector_unreference(&connector->base);
11027 if (connector->base.encoder) {
11028 connector->base.state->best_encoder =
11029 connector->base.encoder;
11030 connector->base.state->crtc =
11031 connector->base.encoder->crtc;
11033 drm_connector_reference(&connector->base);
11035 connector->base.state->best_encoder = NULL;
11036 connector->base.state->crtc = NULL;
11039 drm_connector_list_iter_end(&conn_iter);
11043 connected_sink_compute_bpp(struct intel_connector *connector,
11044 struct intel_crtc_state *pipe_config)
11046 const struct drm_display_info *info = &connector->base.display_info;
11047 int bpp = pipe_config->pipe_bpp;
11049 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
11050 connector->base.base.id,
11051 connector->base.name);
11053 /* Don't use an invalid EDID bpc value */
11054 if (info->bpc != 0 && info->bpc * 3 < bpp) {
11055 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
11056 bpp, info->bpc * 3);
11057 pipe_config->pipe_bpp = info->bpc * 3;
11060 /* Clamp bpp to 8 on screens without EDID 1.4 */
11061 if (info->bpc == 0 && bpp > 24) {
11062 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
11064 pipe_config->pipe_bpp = 24;
11069 compute_baseline_pipe_bpp(struct intel_crtc *crtc,
11070 struct intel_crtc_state *pipe_config)
11072 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
11073 struct drm_atomic_state *state;
11074 struct drm_connector *connector;
11075 struct drm_connector_state *connector_state;
11078 if ((IS_G4X(dev_priv) || IS_VALLEYVIEW(dev_priv) ||
11079 IS_CHERRYVIEW(dev_priv)))
11081 else if (INTEL_GEN(dev_priv) >= 5)
11087 pipe_config->pipe_bpp = bpp;
11089 state = pipe_config->base.state;
11091 /* Clamp display bpp to EDID value */
11092 for_each_new_connector_in_state(state, connector, connector_state, i) {
11093 if (connector_state->crtc != &crtc->base)
11096 connected_sink_compute_bpp(to_intel_connector(connector),
11103 static void intel_dump_crtc_timings(const struct drm_display_mode *mode)
11105 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
11106 "type: 0x%x flags: 0x%x\n",
11108 mode->crtc_hdisplay, mode->crtc_hsync_start,
11109 mode->crtc_hsync_end, mode->crtc_htotal,
11110 mode->crtc_vdisplay, mode->crtc_vsync_start,
11111 mode->crtc_vsync_end, mode->crtc_vtotal, mode->type, mode->flags);
11115 intel_dump_m_n_config(struct intel_crtc_state *pipe_config, char *id,
11116 unsigned int lane_count, struct intel_link_m_n *m_n)
11118 DRM_DEBUG_KMS("%s: lanes: %i; gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
11120 m_n->gmch_m, m_n->gmch_n,
11121 m_n->link_m, m_n->link_n, m_n->tu);
11124 static void intel_dump_pipe_config(struct intel_crtc *crtc,
11125 struct intel_crtc_state *pipe_config,
11126 const char *context)
11128 struct drm_device *dev = crtc->base.dev;
11129 struct drm_i915_private *dev_priv = to_i915(dev);
11130 struct drm_plane *plane;
11131 struct intel_plane *intel_plane;
11132 struct intel_plane_state *state;
11133 struct drm_framebuffer *fb;
11135 DRM_DEBUG_KMS("[CRTC:%d:%s]%s\n",
11136 crtc->base.base.id, crtc->base.name, context);
11138 DRM_DEBUG_KMS("cpu_transcoder: %s, pipe bpp: %i, dithering: %i\n",
11139 transcoder_name(pipe_config->cpu_transcoder),
11140 pipe_config->pipe_bpp, pipe_config->dither);
11142 if (pipe_config->has_pch_encoder)
11143 intel_dump_m_n_config(pipe_config, "fdi",
11144 pipe_config->fdi_lanes,
11145 &pipe_config->fdi_m_n);
11147 if (intel_crtc_has_dp_encoder(pipe_config)) {
11148 intel_dump_m_n_config(pipe_config, "dp m_n",
11149 pipe_config->lane_count, &pipe_config->dp_m_n);
11150 if (pipe_config->has_drrs)
11151 intel_dump_m_n_config(pipe_config, "dp m2_n2",
11152 pipe_config->lane_count,
11153 &pipe_config->dp_m2_n2);
11156 DRM_DEBUG_KMS("audio: %i, infoframes: %i\n",
11157 pipe_config->has_audio, pipe_config->has_infoframe);
11159 DRM_DEBUG_KMS("requested mode:\n");
11160 drm_mode_debug_printmodeline(&pipe_config->base.mode);
11161 DRM_DEBUG_KMS("adjusted mode:\n");
11162 drm_mode_debug_printmodeline(&pipe_config->base.adjusted_mode);
11163 intel_dump_crtc_timings(&pipe_config->base.adjusted_mode);
11164 DRM_DEBUG_KMS("port clock: %d, pipe src size: %dx%d, pixel rate %d\n",
11165 pipe_config->port_clock,
11166 pipe_config->pipe_src_w, pipe_config->pipe_src_h,
11167 pipe_config->pixel_rate);
11169 if (INTEL_GEN(dev_priv) >= 9)
11170 DRM_DEBUG_KMS("num_scalers: %d, scaler_users: 0x%x, scaler_id: %d\n",
11172 pipe_config->scaler_state.scaler_users,
11173 pipe_config->scaler_state.scaler_id);
11175 if (HAS_GMCH_DISPLAY(dev_priv))
11176 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
11177 pipe_config->gmch_pfit.control,
11178 pipe_config->gmch_pfit.pgm_ratios,
11179 pipe_config->gmch_pfit.lvds_border_bits);
11181 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
11182 pipe_config->pch_pfit.pos,
11183 pipe_config->pch_pfit.size,
11184 enableddisabled(pipe_config->pch_pfit.enabled));
11186 DRM_DEBUG_KMS("ips: %i, double wide: %i\n",
11187 pipe_config->ips_enabled, pipe_config->double_wide);
11189 intel_dpll_dump_hw_state(dev_priv, &pipe_config->dpll_hw_state);
11191 DRM_DEBUG_KMS("planes on this crtc\n");
11192 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
11193 struct drm_format_name_buf format_name;
11194 intel_plane = to_intel_plane(plane);
11195 if (intel_plane->pipe != crtc->pipe)
11198 state = to_intel_plane_state(plane->state);
11199 fb = state->base.fb;
11201 DRM_DEBUG_KMS("[PLANE:%d:%s] disabled, scaler_id = %d\n",
11202 plane->base.id, plane->name, state->scaler_id);
11206 DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d, fb = %ux%u format = %s\n",
11207 plane->base.id, plane->name,
11208 fb->base.id, fb->width, fb->height,
11209 drm_get_format_name(fb->format->format, &format_name));
11210 if (INTEL_GEN(dev_priv) >= 9)
11211 DRM_DEBUG_KMS("\tscaler:%d src %dx%d+%d+%d dst %dx%d+%d+%d\n",
11213 state->base.src.x1 >> 16,
11214 state->base.src.y1 >> 16,
11215 drm_rect_width(&state->base.src) >> 16,
11216 drm_rect_height(&state->base.src) >> 16,
11217 state->base.dst.x1, state->base.dst.y1,
11218 drm_rect_width(&state->base.dst),
11219 drm_rect_height(&state->base.dst));
11223 static bool check_digital_port_conflicts(struct drm_atomic_state *state)
11225 struct drm_device *dev = state->dev;
11226 struct drm_connector *connector;
11227 unsigned int used_ports = 0;
11228 unsigned int used_mst_ports = 0;
11231 * Walk the connector list instead of the encoder
11232 * list to detect the problem on ddi platforms
11233 * where there's just one encoder per digital port.
11235 drm_for_each_connector(connector, dev) {
11236 struct drm_connector_state *connector_state;
11237 struct intel_encoder *encoder;
11239 connector_state = drm_atomic_get_existing_connector_state(state, connector);
11240 if (!connector_state)
11241 connector_state = connector->state;
11243 if (!connector_state->best_encoder)
11246 encoder = to_intel_encoder(connector_state->best_encoder);
11248 WARN_ON(!connector_state->crtc);
11250 switch (encoder->type) {
11251 unsigned int port_mask;
11252 case INTEL_OUTPUT_UNKNOWN:
11253 if (WARN_ON(!HAS_DDI(to_i915(dev))))
11255 case INTEL_OUTPUT_DP:
11256 case INTEL_OUTPUT_HDMI:
11257 case INTEL_OUTPUT_EDP:
11258 port_mask = 1 << enc_to_dig_port(&encoder->base)->port;
11260 /* the same port mustn't appear more than once */
11261 if (used_ports & port_mask)
11264 used_ports |= port_mask;
11266 case INTEL_OUTPUT_DP_MST:
11268 1 << enc_to_mst(&encoder->base)->primary->port;
11275 /* can't mix MST and SST/HDMI on the same port */
11276 if (used_ports & used_mst_ports)
11283 clear_intel_crtc_state(struct intel_crtc_state *crtc_state)
11285 struct drm_i915_private *dev_priv =
11286 to_i915(crtc_state->base.crtc->dev);
11287 struct intel_crtc_scaler_state scaler_state;
11288 struct intel_dpll_hw_state dpll_hw_state;
11289 struct intel_shared_dpll *shared_dpll;
11290 struct intel_crtc_wm_state wm_state;
11293 /* FIXME: before the switch to atomic started, a new pipe_config was
11294 * kzalloc'd. Code that depends on any field being zero should be
11295 * fixed, so that the crtc_state can be safely duplicated. For now,
11296 * only fields that are know to not cause problems are preserved. */
11298 scaler_state = crtc_state->scaler_state;
11299 shared_dpll = crtc_state->shared_dpll;
11300 dpll_hw_state = crtc_state->dpll_hw_state;
11301 force_thru = crtc_state->pch_pfit.force_thru;
11302 if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
11303 wm_state = crtc_state->wm;
11305 /* Keep base drm_crtc_state intact, only clear our extended struct */
11306 BUILD_BUG_ON(offsetof(struct intel_crtc_state, base));
11307 memset(&crtc_state->base + 1, 0,
11308 sizeof(*crtc_state) - sizeof(crtc_state->base));
11310 crtc_state->scaler_state = scaler_state;
11311 crtc_state->shared_dpll = shared_dpll;
11312 crtc_state->dpll_hw_state = dpll_hw_state;
11313 crtc_state->pch_pfit.force_thru = force_thru;
11314 if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
11315 crtc_state->wm = wm_state;
11319 intel_modeset_pipe_config(struct drm_crtc *crtc,
11320 struct intel_crtc_state *pipe_config)
11322 struct drm_atomic_state *state = pipe_config->base.state;
11323 struct intel_encoder *encoder;
11324 struct drm_connector *connector;
11325 struct drm_connector_state *connector_state;
11326 int base_bpp, ret = -EINVAL;
11330 clear_intel_crtc_state(pipe_config);
11332 pipe_config->cpu_transcoder =
11333 (enum transcoder) to_intel_crtc(crtc)->pipe;
11336 * Sanitize sync polarity flags based on requested ones. If neither
11337 * positive or negative polarity is requested, treat this as meaning
11338 * negative polarity.
11340 if (!(pipe_config->base.adjusted_mode.flags &
11341 (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC)))
11342 pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC;
11344 if (!(pipe_config->base.adjusted_mode.flags &
11345 (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC)))
11346 pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC;
11348 base_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc),
11354 * Determine the real pipe dimensions. Note that stereo modes can
11355 * increase the actual pipe size due to the frame doubling and
11356 * insertion of additional space for blanks between the frame. This
11357 * is stored in the crtc timings. We use the requested mode to do this
11358 * computation to clearly distinguish it from the adjusted mode, which
11359 * can be changed by the connectors in the below retry loop.
11361 drm_mode_get_hv_timing(&pipe_config->base.mode,
11362 &pipe_config->pipe_src_w,
11363 &pipe_config->pipe_src_h);
11365 for_each_new_connector_in_state(state, connector, connector_state, i) {
11366 if (connector_state->crtc != crtc)
11369 encoder = to_intel_encoder(connector_state->best_encoder);
11371 if (!check_single_encoder_cloning(state, to_intel_crtc(crtc), encoder)) {
11372 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
11377 * Determine output_types before calling the .compute_config()
11378 * hooks so that the hooks can use this information safely.
11380 pipe_config->output_types |= 1 << encoder->type;
11384 /* Ensure the port clock defaults are reset when retrying. */
11385 pipe_config->port_clock = 0;
11386 pipe_config->pixel_multiplier = 1;
11388 /* Fill in default crtc timings, allow encoders to overwrite them. */
11389 drm_mode_set_crtcinfo(&pipe_config->base.adjusted_mode,
11390 CRTC_STEREO_DOUBLE);
11392 /* Pass our mode to the connectors and the CRTC to give them a chance to
11393 * adjust it according to limitations or connector properties, and also
11394 * a chance to reject the mode entirely.
11396 for_each_new_connector_in_state(state, connector, connector_state, i) {
11397 if (connector_state->crtc != crtc)
11400 encoder = to_intel_encoder(connector_state->best_encoder);
11402 if (!(encoder->compute_config(encoder, pipe_config, connector_state))) {
11403 DRM_DEBUG_KMS("Encoder config failure\n");
11408 /* Set default port clock if not overwritten by the encoder. Needs to be
11409 * done afterwards in case the encoder adjusts the mode. */
11410 if (!pipe_config->port_clock)
11411 pipe_config->port_clock = pipe_config->base.adjusted_mode.crtc_clock
11412 * pipe_config->pixel_multiplier;
11414 ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config);
11416 DRM_DEBUG_KMS("CRTC fixup failed\n");
11420 if (ret == RETRY) {
11421 if (WARN(!retry, "loop in pipe configuration computation\n")) {
11426 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
11428 goto encoder_retry;
11431 /* Dithering seems to not pass-through bits correctly when it should, so
11432 * only enable it on 6bpc panels and when its not a compliance
11433 * test requesting 6bpc video pattern.
11435 pipe_config->dither = (pipe_config->pipe_bpp == 6*3) &&
11436 !pipe_config->dither_force_disable;
11437 DRM_DEBUG_KMS("hw max bpp: %i, pipe bpp: %i, dithering: %i\n",
11438 base_bpp, pipe_config->pipe_bpp, pipe_config->dither);
11445 intel_modeset_update_crtc_state(struct drm_atomic_state *state)
11447 struct drm_crtc *crtc;
11448 struct drm_crtc_state *new_crtc_state;
11451 /* Double check state. */
11452 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
11453 to_intel_crtc(crtc)->config = to_intel_crtc_state(new_crtc_state);
11455 /* Update hwmode for vblank functions */
11456 if (new_crtc_state->active)
11457 crtc->hwmode = new_crtc_state->adjusted_mode;
11459 crtc->hwmode.crtc_clock = 0;
11462 * Update legacy state to satisfy fbc code. This can
11463 * be removed when fbc uses the atomic state.
11465 if (drm_atomic_get_existing_plane_state(state, crtc->primary)) {
11466 struct drm_plane_state *plane_state = crtc->primary->state;
11468 crtc->primary->fb = plane_state->fb;
11469 crtc->x = plane_state->src_x >> 16;
11470 crtc->y = plane_state->src_y >> 16;
11475 static bool intel_fuzzy_clock_check(int clock1, int clock2)
11479 if (clock1 == clock2)
11482 if (!clock1 || !clock2)
11485 diff = abs(clock1 - clock2);
11487 if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105)
11494 intel_compare_m_n(unsigned int m, unsigned int n,
11495 unsigned int m2, unsigned int n2,
11498 if (m == m2 && n == n2)
11501 if (exact || !m || !n || !m2 || !n2)
11504 BUILD_BUG_ON(DATA_LINK_M_N_MASK > INT_MAX);
11511 } else if (n < n2) {
11521 return intel_fuzzy_clock_check(m, m2);
11525 intel_compare_link_m_n(const struct intel_link_m_n *m_n,
11526 struct intel_link_m_n *m2_n2,
11529 if (m_n->tu == m2_n2->tu &&
11530 intel_compare_m_n(m_n->gmch_m, m_n->gmch_n,
11531 m2_n2->gmch_m, m2_n2->gmch_n, !adjust) &&
11532 intel_compare_m_n(m_n->link_m, m_n->link_n,
11533 m2_n2->link_m, m2_n2->link_n, !adjust)) {
11543 static void __printf(3, 4)
11544 pipe_config_err(bool adjust, const char *name, const char *format, ...)
11547 unsigned int category;
11548 struct va_format vaf;
11552 level = KERN_DEBUG;
11553 category = DRM_UT_KMS;
11556 category = DRM_UT_NONE;
11559 va_start(args, format);
11563 drm_printk(level, category, "mismatch in %s %pV", name, &vaf);
11569 intel_pipe_config_compare(struct drm_i915_private *dev_priv,
11570 struct intel_crtc_state *current_config,
11571 struct intel_crtc_state *pipe_config,
11576 #define PIPE_CONF_CHECK_X(name) \
11577 if (current_config->name != pipe_config->name) { \
11578 pipe_config_err(adjust, __stringify(name), \
11579 "(expected 0x%08x, found 0x%08x)\n", \
11580 current_config->name, \
11581 pipe_config->name); \
11585 #define PIPE_CONF_CHECK_I(name) \
11586 if (current_config->name != pipe_config->name) { \
11587 pipe_config_err(adjust, __stringify(name), \
11588 "(expected %i, found %i)\n", \
11589 current_config->name, \
11590 pipe_config->name); \
11594 #define PIPE_CONF_CHECK_P(name) \
11595 if (current_config->name != pipe_config->name) { \
11596 pipe_config_err(adjust, __stringify(name), \
11597 "(expected %p, found %p)\n", \
11598 current_config->name, \
11599 pipe_config->name); \
11603 #define PIPE_CONF_CHECK_M_N(name) \
11604 if (!intel_compare_link_m_n(¤t_config->name, \
11605 &pipe_config->name,\
11607 pipe_config_err(adjust, __stringify(name), \
11608 "(expected tu %i gmch %i/%i link %i/%i, " \
11609 "found tu %i, gmch %i/%i link %i/%i)\n", \
11610 current_config->name.tu, \
11611 current_config->name.gmch_m, \
11612 current_config->name.gmch_n, \
11613 current_config->name.link_m, \
11614 current_config->name.link_n, \
11615 pipe_config->name.tu, \
11616 pipe_config->name.gmch_m, \
11617 pipe_config->name.gmch_n, \
11618 pipe_config->name.link_m, \
11619 pipe_config->name.link_n); \
11623 /* This is required for BDW+ where there is only one set of registers for
11624 * switching between high and low RR.
11625 * This macro can be used whenever a comparison has to be made between one
11626 * hw state and multiple sw state variables.
11628 #define PIPE_CONF_CHECK_M_N_ALT(name, alt_name) \
11629 if (!intel_compare_link_m_n(¤t_config->name, \
11630 &pipe_config->name, adjust) && \
11631 !intel_compare_link_m_n(¤t_config->alt_name, \
11632 &pipe_config->name, adjust)) { \
11633 pipe_config_err(adjust, __stringify(name), \
11634 "(expected tu %i gmch %i/%i link %i/%i, " \
11635 "or tu %i gmch %i/%i link %i/%i, " \
11636 "found tu %i, gmch %i/%i link %i/%i)\n", \
11637 current_config->name.tu, \
11638 current_config->name.gmch_m, \
11639 current_config->name.gmch_n, \
11640 current_config->name.link_m, \
11641 current_config->name.link_n, \
11642 current_config->alt_name.tu, \
11643 current_config->alt_name.gmch_m, \
11644 current_config->alt_name.gmch_n, \
11645 current_config->alt_name.link_m, \
11646 current_config->alt_name.link_n, \
11647 pipe_config->name.tu, \
11648 pipe_config->name.gmch_m, \
11649 pipe_config->name.gmch_n, \
11650 pipe_config->name.link_m, \
11651 pipe_config->name.link_n); \
11655 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
11656 if ((current_config->name ^ pipe_config->name) & (mask)) { \
11657 pipe_config_err(adjust, __stringify(name), \
11658 "(%x) (expected %i, found %i)\n", \
11660 current_config->name & (mask), \
11661 pipe_config->name & (mask)); \
11665 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
11666 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
11667 pipe_config_err(adjust, __stringify(name), \
11668 "(expected %i, found %i)\n", \
11669 current_config->name, \
11670 pipe_config->name); \
11674 #define PIPE_CONF_QUIRK(quirk) \
11675 ((current_config->quirks | pipe_config->quirks) & (quirk))
11677 PIPE_CONF_CHECK_I(cpu_transcoder);
11679 PIPE_CONF_CHECK_I(has_pch_encoder);
11680 PIPE_CONF_CHECK_I(fdi_lanes);
11681 PIPE_CONF_CHECK_M_N(fdi_m_n);
11683 PIPE_CONF_CHECK_I(lane_count);
11684 PIPE_CONF_CHECK_X(lane_lat_optim_mask);
11686 if (INTEL_GEN(dev_priv) < 8) {
11687 PIPE_CONF_CHECK_M_N(dp_m_n);
11689 if (current_config->has_drrs)
11690 PIPE_CONF_CHECK_M_N(dp_m2_n2);
11692 PIPE_CONF_CHECK_M_N_ALT(dp_m_n, dp_m2_n2);
11694 PIPE_CONF_CHECK_X(output_types);
11696 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hdisplay);
11697 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_htotal);
11698 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hblank_start);
11699 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hblank_end);
11700 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hsync_start);
11701 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hsync_end);
11703 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vdisplay);
11704 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vtotal);
11705 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vblank_start);
11706 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vblank_end);
11707 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_start);
11708 PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_end);
11710 PIPE_CONF_CHECK_I(pixel_multiplier);
11711 PIPE_CONF_CHECK_I(has_hdmi_sink);
11712 if ((INTEL_GEN(dev_priv) < 8 && !IS_HASWELL(dev_priv)) ||
11713 IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
11714 PIPE_CONF_CHECK_I(limited_color_range);
11716 PIPE_CONF_CHECK_I(hdmi_scrambling);
11717 PIPE_CONF_CHECK_I(hdmi_high_tmds_clock_ratio);
11718 PIPE_CONF_CHECK_I(has_infoframe);
11720 PIPE_CONF_CHECK_I(has_audio);
11722 PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags,
11723 DRM_MODE_FLAG_INTERLACE);
11725 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) {
11726 PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags,
11727 DRM_MODE_FLAG_PHSYNC);
11728 PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags,
11729 DRM_MODE_FLAG_NHSYNC);
11730 PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags,
11731 DRM_MODE_FLAG_PVSYNC);
11732 PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags,
11733 DRM_MODE_FLAG_NVSYNC);
11736 PIPE_CONF_CHECK_X(gmch_pfit.control);
11737 /* pfit ratios are autocomputed by the hw on gen4+ */
11738 if (INTEL_GEN(dev_priv) < 4)
11739 PIPE_CONF_CHECK_X(gmch_pfit.pgm_ratios);
11740 PIPE_CONF_CHECK_X(gmch_pfit.lvds_border_bits);
11743 PIPE_CONF_CHECK_I(pipe_src_w);
11744 PIPE_CONF_CHECK_I(pipe_src_h);
11746 PIPE_CONF_CHECK_I(pch_pfit.enabled);
11747 if (current_config->pch_pfit.enabled) {
11748 PIPE_CONF_CHECK_X(pch_pfit.pos);
11749 PIPE_CONF_CHECK_X(pch_pfit.size);
11752 PIPE_CONF_CHECK_I(scaler_state.scaler_id);
11753 PIPE_CONF_CHECK_CLOCK_FUZZY(pixel_rate);
11756 /* BDW+ don't expose a synchronous way to read the state */
11757 if (IS_HASWELL(dev_priv))
11758 PIPE_CONF_CHECK_I(ips_enabled);
11760 PIPE_CONF_CHECK_I(double_wide);
11762 PIPE_CONF_CHECK_P(shared_dpll);
11763 PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
11764 PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
11765 PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
11766 PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
11767 PIPE_CONF_CHECK_X(dpll_hw_state.wrpll);
11768 PIPE_CONF_CHECK_X(dpll_hw_state.spll);
11769 PIPE_CONF_CHECK_X(dpll_hw_state.ctrl1);
11770 PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr1);
11771 PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr2);
11773 PIPE_CONF_CHECK_X(dsi_pll.ctrl);
11774 PIPE_CONF_CHECK_X(dsi_pll.div);
11776 if (IS_G4X(dev_priv) || INTEL_GEN(dev_priv) >= 5)
11777 PIPE_CONF_CHECK_I(pipe_bpp);
11779 PIPE_CONF_CHECK_CLOCK_FUZZY(base.adjusted_mode.crtc_clock);
11780 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock);
11782 #undef PIPE_CONF_CHECK_X
11783 #undef PIPE_CONF_CHECK_I
11784 #undef PIPE_CONF_CHECK_P
11785 #undef PIPE_CONF_CHECK_FLAGS
11786 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
11787 #undef PIPE_CONF_QUIRK
11792 static void intel_pipe_config_sanity_check(struct drm_i915_private *dev_priv,
11793 const struct intel_crtc_state *pipe_config)
11795 if (pipe_config->has_pch_encoder) {
11796 int fdi_dotclock = intel_dotclock_calculate(intel_fdi_link_freq(dev_priv, pipe_config),
11797 &pipe_config->fdi_m_n);
11798 int dotclock = pipe_config->base.adjusted_mode.crtc_clock;
11801 * FDI already provided one idea for the dotclock.
11802 * Yell if the encoder disagrees.
11804 WARN(!intel_fuzzy_clock_check(fdi_dotclock, dotclock),
11805 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
11806 fdi_dotclock, dotclock);
11810 static void verify_wm_state(struct drm_crtc *crtc,
11811 struct drm_crtc_state *new_state)
11813 struct drm_i915_private *dev_priv = to_i915(crtc->dev);
11814 struct skl_ddb_allocation hw_ddb, *sw_ddb;
11815 struct skl_pipe_wm hw_wm, *sw_wm;
11816 struct skl_plane_wm *hw_plane_wm, *sw_plane_wm;
11817 struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
11818 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
11819 const enum pipe pipe = intel_crtc->pipe;
11820 int plane, level, max_level = ilk_wm_max_level(dev_priv);
11822 if (INTEL_GEN(dev_priv) < 9 || !new_state->active)
11825 skl_pipe_wm_get_hw_state(crtc, &hw_wm);
11826 sw_wm = &to_intel_crtc_state(new_state)->wm.skl.optimal;
11828 skl_ddb_get_hw_state(dev_priv, &hw_ddb);
11829 sw_ddb = &dev_priv->wm.skl_hw.ddb;
11832 for_each_universal_plane(dev_priv, pipe, plane) {
11833 hw_plane_wm = &hw_wm.planes[plane];
11834 sw_plane_wm = &sw_wm->planes[plane];
11837 for (level = 0; level <= max_level; level++) {
11838 if (skl_wm_level_equals(&hw_plane_wm->wm[level],
11839 &sw_plane_wm->wm[level]))
11842 DRM_ERROR("mismatch in WM pipe %c plane %d level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
11843 pipe_name(pipe), plane + 1, level,
11844 sw_plane_wm->wm[level].plane_en,
11845 sw_plane_wm->wm[level].plane_res_b,
11846 sw_plane_wm->wm[level].plane_res_l,
11847 hw_plane_wm->wm[level].plane_en,
11848 hw_plane_wm->wm[level].plane_res_b,
11849 hw_plane_wm->wm[level].plane_res_l);
11852 if (!skl_wm_level_equals(&hw_plane_wm->trans_wm,
11853 &sw_plane_wm->trans_wm)) {
11854 DRM_ERROR("mismatch in trans WM pipe %c plane %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
11855 pipe_name(pipe), plane + 1,
11856 sw_plane_wm->trans_wm.plane_en,
11857 sw_plane_wm->trans_wm.plane_res_b,
11858 sw_plane_wm->trans_wm.plane_res_l,
11859 hw_plane_wm->trans_wm.plane_en,
11860 hw_plane_wm->trans_wm.plane_res_b,
11861 hw_plane_wm->trans_wm.plane_res_l);
11865 hw_ddb_entry = &hw_ddb.plane[pipe][plane];
11866 sw_ddb_entry = &sw_ddb->plane[pipe][plane];
11868 if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
11869 DRM_ERROR("mismatch in DDB state pipe %c plane %d (expected (%u,%u), found (%u,%u))\n",
11870 pipe_name(pipe), plane + 1,
11871 sw_ddb_entry->start, sw_ddb_entry->end,
11872 hw_ddb_entry->start, hw_ddb_entry->end);
11878 * If the cursor plane isn't active, we may not have updated it's ddb
11879 * allocation. In that case since the ddb allocation will be updated
11880 * once the plane becomes visible, we can skip this check
11882 if (intel_crtc->cursor_addr) {
11883 hw_plane_wm = &hw_wm.planes[PLANE_CURSOR];
11884 sw_plane_wm = &sw_wm->planes[PLANE_CURSOR];
11887 for (level = 0; level <= max_level; level++) {
11888 if (skl_wm_level_equals(&hw_plane_wm->wm[level],
11889 &sw_plane_wm->wm[level]))
11892 DRM_ERROR("mismatch in WM pipe %c cursor level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
11893 pipe_name(pipe), level,
11894 sw_plane_wm->wm[level].plane_en,
11895 sw_plane_wm->wm[level].plane_res_b,
11896 sw_plane_wm->wm[level].plane_res_l,
11897 hw_plane_wm->wm[level].plane_en,
11898 hw_plane_wm->wm[level].plane_res_b,
11899 hw_plane_wm->wm[level].plane_res_l);
11902 if (!skl_wm_level_equals(&hw_plane_wm->trans_wm,
11903 &sw_plane_wm->trans_wm)) {
11904 DRM_ERROR("mismatch in trans WM pipe %c cursor (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
11906 sw_plane_wm->trans_wm.plane_en,
11907 sw_plane_wm->trans_wm.plane_res_b,
11908 sw_plane_wm->trans_wm.plane_res_l,
11909 hw_plane_wm->trans_wm.plane_en,
11910 hw_plane_wm->trans_wm.plane_res_b,
11911 hw_plane_wm->trans_wm.plane_res_l);
11915 hw_ddb_entry = &hw_ddb.plane[pipe][PLANE_CURSOR];
11916 sw_ddb_entry = &sw_ddb->plane[pipe][PLANE_CURSOR];
11918 if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
11919 DRM_ERROR("mismatch in DDB state pipe %c cursor (expected (%u,%u), found (%u,%u))\n",
11921 sw_ddb_entry->start, sw_ddb_entry->end,
11922 hw_ddb_entry->start, hw_ddb_entry->end);
11928 verify_connector_state(struct drm_device *dev,
11929 struct drm_atomic_state *state,
11930 struct drm_crtc *crtc)
11932 struct drm_connector *connector;
11933 struct drm_connector_state *new_conn_state;
11936 for_each_new_connector_in_state(state, connector, new_conn_state, i) {
11937 struct drm_encoder *encoder = connector->encoder;
11939 if (new_conn_state->crtc != crtc)
11942 intel_connector_verify_state(to_intel_connector(connector));
11944 I915_STATE_WARN(new_conn_state->best_encoder != encoder,
11945 "connector's atomic encoder doesn't match legacy encoder\n");
11950 verify_encoder_state(struct drm_device *dev, struct drm_atomic_state *state)
11952 struct intel_encoder *encoder;
11953 struct drm_connector *connector;
11954 struct drm_connector_state *old_conn_state, *new_conn_state;
11957 for_each_intel_encoder(dev, encoder) {
11958 bool enabled = false, found = false;
11961 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
11962 encoder->base.base.id,
11963 encoder->base.name);
11965 for_each_oldnew_connector_in_state(state, connector, old_conn_state,
11966 new_conn_state, i) {
11967 if (old_conn_state->best_encoder == &encoder->base)
11970 if (new_conn_state->best_encoder != &encoder->base)
11972 found = enabled = true;
11974 I915_STATE_WARN(new_conn_state->crtc !=
11975 encoder->base.crtc,
11976 "connector's crtc doesn't match encoder crtc\n");
11982 I915_STATE_WARN(!!encoder->base.crtc != enabled,
11983 "encoder's enabled state mismatch "
11984 "(expected %i, found %i)\n",
11985 !!encoder->base.crtc, enabled);
11987 if (!encoder->base.crtc) {
11990 active = encoder->get_hw_state(encoder, &pipe);
11991 I915_STATE_WARN(active,
11992 "encoder detached but still enabled on pipe %c.\n",
11999 verify_crtc_state(struct drm_crtc *crtc,
12000 struct drm_crtc_state *old_crtc_state,
12001 struct drm_crtc_state *new_crtc_state)
12003 struct drm_device *dev = crtc->dev;
12004 struct drm_i915_private *dev_priv = to_i915(dev);
12005 struct intel_encoder *encoder;
12006 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
12007 struct intel_crtc_state *pipe_config, *sw_config;
12008 struct drm_atomic_state *old_state;
12011 old_state = old_crtc_state->state;
12012 __drm_atomic_helper_crtc_destroy_state(old_crtc_state);
12013 pipe_config = to_intel_crtc_state(old_crtc_state);
12014 memset(pipe_config, 0, sizeof(*pipe_config));
12015 pipe_config->base.crtc = crtc;
12016 pipe_config->base.state = old_state;
12018 DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
12020 active = dev_priv->display.get_pipe_config(intel_crtc, pipe_config);
12022 /* hw state is inconsistent with the pipe quirk */
12023 if ((intel_crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) ||
12024 (intel_crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))
12025 active = new_crtc_state->active;
12027 I915_STATE_WARN(new_crtc_state->active != active,
12028 "crtc active state doesn't match with hw state "
12029 "(expected %i, found %i)\n", new_crtc_state->active, active);
12031 I915_STATE_WARN(intel_crtc->active != new_crtc_state->active,
12032 "transitional active state does not match atomic hw state "
12033 "(expected %i, found %i)\n", new_crtc_state->active, intel_crtc->active);
12035 for_each_encoder_on_crtc(dev, crtc, encoder) {
12038 active = encoder->get_hw_state(encoder, &pipe);
12039 I915_STATE_WARN(active != new_crtc_state->active,
12040 "[ENCODER:%i] active %i with crtc active %i\n",
12041 encoder->base.base.id, active, new_crtc_state->active);
12043 I915_STATE_WARN(active && intel_crtc->pipe != pipe,
12044 "Encoder connected to wrong pipe %c\n",
12048 pipe_config->output_types |= 1 << encoder->type;
12049 encoder->get_config(encoder, pipe_config);
12053 intel_crtc_compute_pixel_rate(pipe_config);
12055 if (!new_crtc_state->active)
12058 intel_pipe_config_sanity_check(dev_priv, pipe_config);
12060 sw_config = to_intel_crtc_state(crtc->state);
12061 if (!intel_pipe_config_compare(dev_priv, sw_config,
12062 pipe_config, false)) {
12063 I915_STATE_WARN(1, "pipe state doesn't match!\n");
12064 intel_dump_pipe_config(intel_crtc, pipe_config,
12066 intel_dump_pipe_config(intel_crtc, sw_config,
12072 verify_single_dpll_state(struct drm_i915_private *dev_priv,
12073 struct intel_shared_dpll *pll,
12074 struct drm_crtc *crtc,
12075 struct drm_crtc_state *new_state)
12077 struct intel_dpll_hw_state dpll_hw_state;
12078 unsigned crtc_mask;
12081 memset(&dpll_hw_state, 0, sizeof(dpll_hw_state));
12083 DRM_DEBUG_KMS("%s\n", pll->name);
12085 active = pll->funcs.get_hw_state(dev_priv, pll, &dpll_hw_state);
12087 if (!(pll->flags & INTEL_DPLL_ALWAYS_ON)) {
12088 I915_STATE_WARN(!pll->on && pll->active_mask,
12089 "pll in active use but not on in sw tracking\n");
12090 I915_STATE_WARN(pll->on && !pll->active_mask,
12091 "pll is on but not used by any active crtc\n");
12092 I915_STATE_WARN(pll->on != active,
12093 "pll on state mismatch (expected %i, found %i)\n",
12098 I915_STATE_WARN(pll->active_mask & ~pll->state.crtc_mask,
12099 "more active pll users than references: %x vs %x\n",
12100 pll->active_mask, pll->state.crtc_mask);
12105 crtc_mask = 1 << drm_crtc_index(crtc);
12107 if (new_state->active)
12108 I915_STATE_WARN(!(pll->active_mask & crtc_mask),
12109 "pll active mismatch (expected pipe %c in active mask 0x%02x)\n",
12110 pipe_name(drm_crtc_index(crtc)), pll->active_mask);
12112 I915_STATE_WARN(pll->active_mask & crtc_mask,
12113 "pll active mismatch (didn't expect pipe %c in active mask 0x%02x)\n",
12114 pipe_name(drm_crtc_index(crtc)), pll->active_mask);
12116 I915_STATE_WARN(!(pll->state.crtc_mask & crtc_mask),
12117 "pll enabled crtcs mismatch (expected 0x%x in 0x%02x)\n",
12118 crtc_mask, pll->state.crtc_mask);
12120 I915_STATE_WARN(pll->on && memcmp(&pll->state.hw_state,
12122 sizeof(dpll_hw_state)),
12123 "pll hw state mismatch\n");
12127 verify_shared_dpll_state(struct drm_device *dev, struct drm_crtc *crtc,
12128 struct drm_crtc_state *old_crtc_state,
12129 struct drm_crtc_state *new_crtc_state)
12131 struct drm_i915_private *dev_priv = to_i915(dev);
12132 struct intel_crtc_state *old_state = to_intel_crtc_state(old_crtc_state);
12133 struct intel_crtc_state *new_state = to_intel_crtc_state(new_crtc_state);
12135 if (new_state->shared_dpll)
12136 verify_single_dpll_state(dev_priv, new_state->shared_dpll, crtc, new_crtc_state);
12138 if (old_state->shared_dpll &&
12139 old_state->shared_dpll != new_state->shared_dpll) {
12140 unsigned crtc_mask = 1 << drm_crtc_index(crtc);
12141 struct intel_shared_dpll *pll = old_state->shared_dpll;
12143 I915_STATE_WARN(pll->active_mask & crtc_mask,
12144 "pll active mismatch (didn't expect pipe %c in active mask)\n",
12145 pipe_name(drm_crtc_index(crtc)));
12146 I915_STATE_WARN(pll->state.crtc_mask & crtc_mask,
12147 "pll enabled crtcs mismatch (found %x in enabled mask)\n",
12148 pipe_name(drm_crtc_index(crtc)));
12153 intel_modeset_verify_crtc(struct drm_crtc *crtc,
12154 struct drm_atomic_state *state,
12155 struct drm_crtc_state *old_state,
12156 struct drm_crtc_state *new_state)
12158 if (!needs_modeset(new_state) &&
12159 !to_intel_crtc_state(new_state)->update_pipe)
12162 verify_wm_state(crtc, new_state);
12163 verify_connector_state(crtc->dev, state, crtc);
12164 verify_crtc_state(crtc, old_state, new_state);
12165 verify_shared_dpll_state(crtc->dev, crtc, old_state, new_state);
12169 verify_disabled_dpll_state(struct drm_device *dev)
12171 struct drm_i915_private *dev_priv = to_i915(dev);
12174 for (i = 0; i < dev_priv->num_shared_dpll; i++)
12175 verify_single_dpll_state(dev_priv, &dev_priv->shared_dplls[i], NULL, NULL);
12179 intel_modeset_verify_disabled(struct drm_device *dev,
12180 struct drm_atomic_state *state)
12182 verify_encoder_state(dev, state);
12183 verify_connector_state(dev, state, NULL);
12184 verify_disabled_dpll_state(dev);
12187 static void update_scanline_offset(struct intel_crtc *crtc)
12189 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
12192 * The scanline counter increments at the leading edge of hsync.
12194 * On most platforms it starts counting from vtotal-1 on the
12195 * first active line. That means the scanline counter value is
12196 * always one less than what we would expect. Ie. just after
12197 * start of vblank, which also occurs at start of hsync (on the
12198 * last active line), the scanline counter will read vblank_start-1.
12200 * On gen2 the scanline counter starts counting from 1 instead
12201 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
12202 * to keep the value positive), instead of adding one.
12204 * On HSW+ the behaviour of the scanline counter depends on the output
12205 * type. For DP ports it behaves like most other platforms, but on HDMI
12206 * there's an extra 1 line difference. So we need to add two instead of
12207 * one to the value.
12209 * On VLV/CHV DSI the scanline counter would appear to increment
12210 * approx. 1/3 of a scanline before start of vblank. Unfortunately
12211 * that means we can't tell whether we're in vblank or not while
12212 * we're on that particular line. We must still set scanline_offset
12213 * to 1 so that the vblank timestamps come out correct when we query
12214 * the scanline counter from within the vblank interrupt handler.
12215 * However if queried just before the start of vblank we'll get an
12216 * answer that's slightly in the future.
12218 if (IS_GEN2(dev_priv)) {
12219 const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
12222 vtotal = adjusted_mode->crtc_vtotal;
12223 if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
12226 crtc->scanline_offset = vtotal - 1;
12227 } else if (HAS_DDI(dev_priv) &&
12228 intel_crtc_has_type(crtc->config, INTEL_OUTPUT_HDMI)) {
12229 crtc->scanline_offset = 2;
12231 crtc->scanline_offset = 1;
12234 static void intel_modeset_clear_plls(struct drm_atomic_state *state)
12236 struct drm_device *dev = state->dev;
12237 struct drm_i915_private *dev_priv = to_i915(dev);
12238 struct drm_crtc *crtc;
12239 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
12242 if (!dev_priv->display.crtc_compute_clock)
12245 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
12246 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
12247 struct intel_shared_dpll *old_dpll =
12248 to_intel_crtc_state(old_crtc_state)->shared_dpll;
12250 if (!needs_modeset(new_crtc_state))
12253 to_intel_crtc_state(new_crtc_state)->shared_dpll = NULL;
12258 intel_release_shared_dpll(old_dpll, intel_crtc, state);
12263 * This implements the workaround described in the "notes" section of the mode
12264 * set sequence documentation. When going from no pipes or single pipe to
12265 * multiple pipes, and planes are enabled after the pipe, we need to wait at
12266 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
12268 static int haswell_mode_set_planes_workaround(struct drm_atomic_state *state)
12270 struct drm_crtc_state *crtc_state;
12271 struct intel_crtc *intel_crtc;
12272 struct drm_crtc *crtc;
12273 struct intel_crtc_state *first_crtc_state = NULL;
12274 struct intel_crtc_state *other_crtc_state = NULL;
12275 enum pipe first_pipe = INVALID_PIPE, enabled_pipe = INVALID_PIPE;
12278 /* look at all crtc's that are going to be enabled in during modeset */
12279 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
12280 intel_crtc = to_intel_crtc(crtc);
12282 if (!crtc_state->active || !needs_modeset(crtc_state))
12285 if (first_crtc_state) {
12286 other_crtc_state = to_intel_crtc_state(crtc_state);
12289 first_crtc_state = to_intel_crtc_state(crtc_state);
12290 first_pipe = intel_crtc->pipe;
12294 /* No workaround needed? */
12295 if (!first_crtc_state)
12298 /* w/a possibly needed, check how many crtc's are already enabled. */
12299 for_each_intel_crtc(state->dev, intel_crtc) {
12300 struct intel_crtc_state *pipe_config;
12302 pipe_config = intel_atomic_get_crtc_state(state, intel_crtc);
12303 if (IS_ERR(pipe_config))
12304 return PTR_ERR(pipe_config);
12306 pipe_config->hsw_workaround_pipe = INVALID_PIPE;
12308 if (!pipe_config->base.active ||
12309 needs_modeset(&pipe_config->base))
12312 /* 2 or more enabled crtcs means no need for w/a */
12313 if (enabled_pipe != INVALID_PIPE)
12316 enabled_pipe = intel_crtc->pipe;
12319 if (enabled_pipe != INVALID_PIPE)
12320 first_crtc_state->hsw_workaround_pipe = enabled_pipe;
12321 else if (other_crtc_state)
12322 other_crtc_state->hsw_workaround_pipe = first_pipe;
12327 static int intel_lock_all_pipes(struct drm_atomic_state *state)
12329 struct drm_crtc *crtc;
12331 /* Add all pipes to the state */
12332 for_each_crtc(state->dev, crtc) {
12333 struct drm_crtc_state *crtc_state;
12335 crtc_state = drm_atomic_get_crtc_state(state, crtc);
12336 if (IS_ERR(crtc_state))
12337 return PTR_ERR(crtc_state);
12343 static int intel_modeset_all_pipes(struct drm_atomic_state *state)
12345 struct drm_crtc *crtc;
12348 * Add all pipes to the state, and force
12349 * a modeset on all the active ones.
12351 for_each_crtc(state->dev, crtc) {
12352 struct drm_crtc_state *crtc_state;
12355 crtc_state = drm_atomic_get_crtc_state(state, crtc);
12356 if (IS_ERR(crtc_state))
12357 return PTR_ERR(crtc_state);
12359 if (!crtc_state->active || needs_modeset(crtc_state))
12362 crtc_state->mode_changed = true;
12364 ret = drm_atomic_add_affected_connectors(state, crtc);
12368 ret = drm_atomic_add_affected_planes(state, crtc);
12376 static int intel_modeset_checks(struct drm_atomic_state *state)
12378 struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
12379 struct drm_i915_private *dev_priv = to_i915(state->dev);
12380 struct drm_crtc *crtc;
12381 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
12384 if (!check_digital_port_conflicts(state)) {
12385 DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n");
12389 intel_state->modeset = true;
12390 intel_state->active_crtcs = dev_priv->active_crtcs;
12391 intel_state->cdclk.logical = dev_priv->cdclk.logical;
12392 intel_state->cdclk.actual = dev_priv->cdclk.actual;
12394 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
12395 if (new_crtc_state->active)
12396 intel_state->active_crtcs |= 1 << i;
12398 intel_state->active_crtcs &= ~(1 << i);
12400 if (old_crtc_state->active != new_crtc_state->active)
12401 intel_state->active_pipe_changes |= drm_crtc_mask(crtc);
12405 * See if the config requires any additional preparation, e.g.
12406 * to adjust global state with pipes off. We need to do this
12407 * here so we can get the modeset_pipe updated config for the new
12408 * mode set on this crtc. For other crtcs we need to use the
12409 * adjusted_mode bits in the crtc directly.
12411 if (dev_priv->display.modeset_calc_cdclk) {
12412 ret = dev_priv->display.modeset_calc_cdclk(state);
12417 * Writes to dev_priv->cdclk.logical must protected by
12418 * holding all the crtc locks, even if we don't end up
12419 * touching the hardware
12421 if (!intel_cdclk_state_compare(&dev_priv->cdclk.logical,
12422 &intel_state->cdclk.logical)) {
12423 ret = intel_lock_all_pipes(state);
12428 /* All pipes must be switched off while we change the cdclk. */
12429 if (!intel_cdclk_state_compare(&dev_priv->cdclk.actual,
12430 &intel_state->cdclk.actual)) {
12431 ret = intel_modeset_all_pipes(state);
12436 DRM_DEBUG_KMS("New cdclk calculated to be logical %u kHz, actual %u kHz\n",
12437 intel_state->cdclk.logical.cdclk,
12438 intel_state->cdclk.actual.cdclk);
12440 to_intel_atomic_state(state)->cdclk.logical = dev_priv->cdclk.logical;
12443 intel_modeset_clear_plls(state);
12445 if (IS_HASWELL(dev_priv))
12446 return haswell_mode_set_planes_workaround(state);
12452 * Handle calculation of various watermark data at the end of the atomic check
12453 * phase. The code here should be run after the per-crtc and per-plane 'check'
12454 * handlers to ensure that all derived state has been updated.
12456 static int calc_watermark_data(struct drm_atomic_state *state)
12458 struct drm_device *dev = state->dev;
12459 struct drm_i915_private *dev_priv = to_i915(dev);
12461 /* Is there platform-specific watermark information to calculate? */
12462 if (dev_priv->display.compute_global_watermarks)
12463 return dev_priv->display.compute_global_watermarks(state);
12469 * intel_atomic_check - validate state object
12471 * @state: state to validate
12473 static int intel_atomic_check(struct drm_device *dev,
12474 struct drm_atomic_state *state)
12476 struct drm_i915_private *dev_priv = to_i915(dev);
12477 struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
12478 struct drm_crtc *crtc;
12479 struct drm_crtc_state *old_crtc_state, *crtc_state;
12481 bool any_ms = false;
12483 ret = drm_atomic_helper_check_modeset(dev, state);
12487 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, crtc_state, i) {
12488 struct intel_crtc_state *pipe_config =
12489 to_intel_crtc_state(crtc_state);
12491 /* Catch I915_MODE_FLAG_INHERITED */
12492 if (crtc_state->mode.private_flags != old_crtc_state->mode.private_flags)
12493 crtc_state->mode_changed = true;
12495 if (!needs_modeset(crtc_state))
12498 if (!crtc_state->enable) {
12503 /* FIXME: For only active_changed we shouldn't need to do any
12504 * state recomputation at all. */
12506 ret = drm_atomic_add_affected_connectors(state, crtc);
12510 ret = intel_modeset_pipe_config(crtc, pipe_config);
12512 intel_dump_pipe_config(to_intel_crtc(crtc),
12513 pipe_config, "[failed]");
12517 if (i915.fastboot &&
12518 intel_pipe_config_compare(dev_priv,
12519 to_intel_crtc_state(old_crtc_state),
12520 pipe_config, true)) {
12521 crtc_state->mode_changed = false;
12522 pipe_config->update_pipe = true;
12525 if (needs_modeset(crtc_state))
12528 ret = drm_atomic_add_affected_planes(state, crtc);
12532 intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config,
12533 needs_modeset(crtc_state) ?
12534 "[modeset]" : "[fastset]");
12538 ret = intel_modeset_checks(state);
12543 intel_state->cdclk.logical = dev_priv->cdclk.logical;
12546 ret = drm_atomic_helper_check_planes(dev, state);
12550 intel_fbc_choose_crtc(dev_priv, state);
12551 return calc_watermark_data(state);
12554 static int intel_atomic_prepare_commit(struct drm_device *dev,
12555 struct drm_atomic_state *state)
12557 struct drm_i915_private *dev_priv = to_i915(dev);
12558 struct drm_crtc_state *crtc_state;
12559 struct drm_crtc *crtc;
12562 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
12563 if (state->legacy_cursor_update)
12566 ret = intel_crtc_wait_for_pending_flips(crtc);
12570 if (atomic_read(&to_intel_crtc(crtc)->unpin_work_count) >= 2)
12571 flush_workqueue(dev_priv->wq);
12574 ret = mutex_lock_interruptible(&dev->struct_mutex);
12578 ret = drm_atomic_helper_prepare_planes(dev, state);
12579 mutex_unlock(&dev->struct_mutex);
12584 u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc)
12586 struct drm_device *dev = crtc->base.dev;
12588 if (!dev->max_vblank_count)
12589 return drm_accurate_vblank_count(&crtc->base);
12591 return dev->driver->get_vblank_counter(dev, crtc->pipe);
12594 static void intel_atomic_wait_for_vblanks(struct drm_device *dev,
12595 struct drm_i915_private *dev_priv,
12596 unsigned crtc_mask)
12598 unsigned last_vblank_count[I915_MAX_PIPES];
12605 for_each_pipe(dev_priv, pipe) {
12606 struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv,
12609 if (!((1 << pipe) & crtc_mask))
12612 ret = drm_crtc_vblank_get(&crtc->base);
12613 if (WARN_ON(ret != 0)) {
12614 crtc_mask &= ~(1 << pipe);
12618 last_vblank_count[pipe] = drm_crtc_vblank_count(&crtc->base);
12621 for_each_pipe(dev_priv, pipe) {
12622 struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv,
12626 if (!((1 << pipe) & crtc_mask))
12629 lret = wait_event_timeout(dev->vblank[pipe].queue,
12630 last_vblank_count[pipe] !=
12631 drm_crtc_vblank_count(&crtc->base),
12632 msecs_to_jiffies(50));
12634 WARN(!lret, "pipe %c vblank wait timed out\n", pipe_name(pipe));
12636 drm_crtc_vblank_put(&crtc->base);
12640 static bool needs_vblank_wait(struct intel_crtc_state *crtc_state)
12642 /* fb updated, need to unpin old fb */
12643 if (crtc_state->fb_changed)
12646 /* wm changes, need vblank before final wm's */
12647 if (crtc_state->update_wm_post)
12650 if (crtc_state->wm.need_postvbl_update)
12656 static void intel_update_crtc(struct drm_crtc *crtc,
12657 struct drm_atomic_state *state,
12658 struct drm_crtc_state *old_crtc_state,
12659 struct drm_crtc_state *new_crtc_state,
12660 unsigned int *crtc_vblank_mask)
12662 struct drm_device *dev = crtc->dev;
12663 struct drm_i915_private *dev_priv = to_i915(dev);
12664 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
12665 struct intel_crtc_state *pipe_config = to_intel_crtc_state(new_crtc_state);
12666 bool modeset = needs_modeset(new_crtc_state);
12669 update_scanline_offset(intel_crtc);
12670 dev_priv->display.crtc_enable(pipe_config, state);
12672 intel_pre_plane_update(to_intel_crtc_state(old_crtc_state),
12676 if (drm_atomic_get_existing_plane_state(state, crtc->primary)) {
12678 intel_crtc, pipe_config,
12679 to_intel_plane_state(crtc->primary->state));
12682 drm_atomic_helper_commit_planes_on_crtc(old_crtc_state);
12684 if (needs_vblank_wait(pipe_config))
12685 *crtc_vblank_mask |= drm_crtc_mask(crtc);
12688 static void intel_update_crtcs(struct drm_atomic_state *state,
12689 unsigned int *crtc_vblank_mask)
12691 struct drm_crtc *crtc;
12692 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
12695 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
12696 if (!new_crtc_state->active)
12699 intel_update_crtc(crtc, state, old_crtc_state,
12700 new_crtc_state, crtc_vblank_mask);
12704 static void skl_update_crtcs(struct drm_atomic_state *state,
12705 unsigned int *crtc_vblank_mask)
12707 struct drm_i915_private *dev_priv = to_i915(state->dev);
12708 struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
12709 struct drm_crtc *crtc;
12710 struct intel_crtc *intel_crtc;
12711 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
12712 struct intel_crtc_state *cstate;
12713 unsigned int updated = 0;
12718 const struct skl_ddb_entry *entries[I915_MAX_PIPES] = {};
12720 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i)
12721 /* ignore allocations for crtc's that have been turned off. */
12722 if (new_crtc_state->active)
12723 entries[i] = &to_intel_crtc_state(old_crtc_state)->wm.skl.ddb;
12726 * Whenever the number of active pipes changes, we need to make sure we
12727 * update the pipes in the right order so that their ddb allocations
12728 * never overlap with eachother inbetween CRTC updates. Otherwise we'll
12729 * cause pipe underruns and other bad stuff.
12734 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
12735 bool vbl_wait = false;
12736 unsigned int cmask = drm_crtc_mask(crtc);
12738 intel_crtc = to_intel_crtc(crtc);
12739 cstate = to_intel_crtc_state(crtc->state);
12740 pipe = intel_crtc->pipe;
12742 if (updated & cmask || !cstate->base.active)
12745 if (skl_ddb_allocation_overlaps(entries, &cstate->wm.skl.ddb, i))
12749 entries[i] = &cstate->wm.skl.ddb;
12752 * If this is an already active pipe, it's DDB changed,
12753 * and this isn't the last pipe that needs updating
12754 * then we need to wait for a vblank to pass for the
12755 * new ddb allocation to take effect.
12757 if (!skl_ddb_entry_equal(&cstate->wm.skl.ddb,
12758 &to_intel_crtc_state(old_crtc_state)->wm.skl.ddb) &&
12759 !new_crtc_state->active_changed &&
12760 intel_state->wm_results.dirty_pipes != updated)
12763 intel_update_crtc(crtc, state, old_crtc_state,
12764 new_crtc_state, crtc_vblank_mask);
12767 intel_wait_for_vblank(dev_priv, pipe);
12771 } while (progress);
12774 static void intel_atomic_helper_free_state(struct drm_i915_private *dev_priv)
12776 struct intel_atomic_state *state, *next;
12777 struct llist_node *freed;
12779 freed = llist_del_all(&dev_priv->atomic_helper.free_list);
12780 llist_for_each_entry_safe(state, next, freed, freed)
12781 drm_atomic_state_put(&state->base);
12784 static void intel_atomic_helper_free_state_worker(struct work_struct *work)
12786 struct drm_i915_private *dev_priv =
12787 container_of(work, typeof(*dev_priv), atomic_helper.free_work);
12789 intel_atomic_helper_free_state(dev_priv);
12792 static void intel_atomic_commit_tail(struct drm_atomic_state *state)
12794 struct drm_device *dev = state->dev;
12795 struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
12796 struct drm_i915_private *dev_priv = to_i915(dev);
12797 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
12798 struct drm_crtc *crtc;
12799 struct intel_crtc_state *intel_cstate;
12800 bool hw_check = intel_state->modeset;
12801 u64 put_domains[I915_MAX_PIPES] = {};
12802 unsigned crtc_vblank_mask = 0;
12805 drm_atomic_helper_wait_for_dependencies(state);
12807 if (intel_state->modeset)
12808 intel_display_power_get(dev_priv, POWER_DOMAIN_MODESET);
12810 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
12811 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
12813 if (needs_modeset(new_crtc_state) ||
12814 to_intel_crtc_state(new_crtc_state)->update_pipe) {
12817 put_domains[to_intel_crtc(crtc)->pipe] =
12818 modeset_get_crtc_power_domains(crtc,
12819 to_intel_crtc_state(new_crtc_state));
12822 if (!needs_modeset(new_crtc_state))
12825 intel_pre_plane_update(to_intel_crtc_state(old_crtc_state),
12826 to_intel_crtc_state(new_crtc_state));
12828 if (old_crtc_state->active) {
12829 intel_crtc_disable_planes(crtc, old_crtc_state->plane_mask);
12830 dev_priv->display.crtc_disable(to_intel_crtc_state(old_crtc_state), state);
12831 intel_crtc->active = false;
12832 intel_fbc_disable(intel_crtc);
12833 intel_disable_shared_dpll(intel_crtc);
12836 * Underruns don't always raise
12837 * interrupts, so check manually.
12839 intel_check_cpu_fifo_underruns(dev_priv);
12840 intel_check_pch_fifo_underruns(dev_priv);
12842 if (!crtc->state->active) {
12844 * Make sure we don't call initial_watermarks
12845 * for ILK-style watermark updates.
12847 * No clue what this is supposed to achieve.
12849 if (INTEL_GEN(dev_priv) >= 9)
12850 dev_priv->display.initial_watermarks(intel_state,
12851 to_intel_crtc_state(crtc->state));
12856 /* Only after disabling all output pipelines that will be changed can we
12857 * update the the output configuration. */
12858 intel_modeset_update_crtc_state(state);
12860 if (intel_state->modeset) {
12861 drm_atomic_helper_update_legacy_modeset_state(state->dev, state);
12863 intel_set_cdclk(dev_priv, &dev_priv->cdclk.actual);
12866 * SKL workaround: bspec recommends we disable the SAGV when we
12867 * have more then one pipe enabled
12869 if (!intel_can_enable_sagv(state))
12870 intel_disable_sagv(dev_priv);
12872 intel_modeset_verify_disabled(dev, state);
12875 /* Complete the events for pipes that have now been disabled */
12876 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
12877 bool modeset = needs_modeset(new_crtc_state);
12879 /* Complete events for now disable pipes here. */
12880 if (modeset && !new_crtc_state->active && new_crtc_state->event) {
12881 spin_lock_irq(&dev->event_lock);
12882 drm_crtc_send_vblank_event(crtc, new_crtc_state->event);
12883 spin_unlock_irq(&dev->event_lock);
12885 new_crtc_state->event = NULL;
12889 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
12890 dev_priv->display.update_crtcs(state, &crtc_vblank_mask);
12892 /* FIXME: We should call drm_atomic_helper_commit_hw_done() here
12893 * already, but still need the state for the delayed optimization. To
12895 * - wrap the optimization/post_plane_update stuff into a per-crtc work.
12896 * - schedule that vblank worker _before_ calling hw_done
12897 * - at the start of commit_tail, cancel it _synchrously
12898 * - switch over to the vblank wait helper in the core after that since
12899 * we don't need out special handling any more.
12901 if (!state->legacy_cursor_update)
12902 intel_atomic_wait_for_vblanks(dev, dev_priv, crtc_vblank_mask);
12905 * Now that the vblank has passed, we can go ahead and program the
12906 * optimal watermarks on platforms that need two-step watermark
12909 * TODO: Move this (and other cleanup) to an async worker eventually.
12911 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
12912 intel_cstate = to_intel_crtc_state(new_crtc_state);
12914 if (dev_priv->display.optimize_watermarks)
12915 dev_priv->display.optimize_watermarks(intel_state,
12919 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
12920 intel_post_plane_update(to_intel_crtc_state(old_crtc_state));
12922 if (put_domains[i])
12923 modeset_put_power_domains(dev_priv, put_domains[i]);
12925 intel_modeset_verify_crtc(crtc, state, old_crtc_state, new_crtc_state);
12928 if (intel_state->modeset && intel_can_enable_sagv(state))
12929 intel_enable_sagv(dev_priv);
12931 drm_atomic_helper_commit_hw_done(state);
12933 if (intel_state->modeset)
12934 intel_display_power_put(dev_priv, POWER_DOMAIN_MODESET);
12936 mutex_lock(&dev->struct_mutex);
12937 drm_atomic_helper_cleanup_planes(dev, state);
12938 mutex_unlock(&dev->struct_mutex);
12940 drm_atomic_helper_commit_cleanup_done(state);
12942 drm_atomic_state_put(state);
12944 /* As one of the primary mmio accessors, KMS has a high likelihood
12945 * of triggering bugs in unclaimed access. After we finish
12946 * modesetting, see if an error has been flagged, and if so
12947 * enable debugging for the next modeset - and hope we catch
12950 * XXX note that we assume display power is on at this point.
12951 * This might hold true now but we need to add pm helper to check
12952 * unclaimed only when the hardware is on, as atomic commits
12953 * can happen also when the device is completely off.
12955 intel_uncore_arm_unclaimed_mmio_detection(dev_priv);
12957 intel_atomic_helper_free_state(dev_priv);
12960 static void intel_atomic_commit_work(struct work_struct *work)
12962 struct drm_atomic_state *state =
12963 container_of(work, struct drm_atomic_state, commit_work);
12965 intel_atomic_commit_tail(state);
12968 static int __i915_sw_fence_call
12969 intel_atomic_commit_ready(struct i915_sw_fence *fence,
12970 enum i915_sw_fence_notify notify)
12972 struct intel_atomic_state *state =
12973 container_of(fence, struct intel_atomic_state, commit_ready);
12976 case FENCE_COMPLETE:
12977 if (state->base.commit_work.func)
12978 queue_work(system_unbound_wq, &state->base.commit_work);
12983 struct intel_atomic_helper *helper =
12984 &to_i915(state->base.dev)->atomic_helper;
12986 if (llist_add(&state->freed, &helper->free_list))
12987 schedule_work(&helper->free_work);
12992 return NOTIFY_DONE;
12995 static void intel_atomic_track_fbs(struct drm_atomic_state *state)
12997 struct drm_plane_state *old_plane_state, *new_plane_state;
12998 struct drm_plane *plane;
13001 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i)
13002 i915_gem_track_fb(intel_fb_obj(old_plane_state->fb),
13003 intel_fb_obj(new_plane_state->fb),
13004 to_intel_plane(plane)->frontbuffer_bit);
13008 * intel_atomic_commit - commit validated state object
13010 * @state: the top-level driver state object
13011 * @nonblock: nonblocking commit
13013 * This function commits a top-level state object that has been validated
13014 * with drm_atomic_helper_check().
13017 * Zero for success or -errno.
13019 static int intel_atomic_commit(struct drm_device *dev,
13020 struct drm_atomic_state *state,
13023 struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
13024 struct drm_i915_private *dev_priv = to_i915(dev);
13027 ret = drm_atomic_helper_setup_commit(state, nonblock);
13031 drm_atomic_state_get(state);
13032 i915_sw_fence_init(&intel_state->commit_ready,
13033 intel_atomic_commit_ready);
13035 ret = intel_atomic_prepare_commit(dev, state);
13037 DRM_DEBUG_ATOMIC("Preparing state failed with %i\n", ret);
13038 i915_sw_fence_commit(&intel_state->commit_ready);
13043 * The intel_legacy_cursor_update() fast path takes care
13044 * of avoiding the vblank waits for simple cursor
13045 * movement and flips. For cursor on/off and size changes,
13046 * we want to perform the vblank waits so that watermark
13047 * updates happen during the correct frames. Gen9+ have
13048 * double buffered watermarks and so shouldn't need this.
13050 * Do this after drm_atomic_helper_setup_commit() and
13051 * intel_atomic_prepare_commit() because we still want
13052 * to skip the flip and fb cleanup waits. Although that
13053 * does risk yanking the mapping from under the display
13056 * FIXME doing watermarks and fb cleanup from a vblank worker
13057 * (assuming we had any) would solve these problems.
13059 if (INTEL_GEN(dev_priv) < 9)
13060 state->legacy_cursor_update = false;
13062 drm_atomic_helper_swap_state(state, true);
13063 dev_priv->wm.distrust_bios_wm = false;
13064 intel_shared_dpll_swap_state(state);
13065 intel_atomic_track_fbs(state);
13067 if (intel_state->modeset) {
13068 memcpy(dev_priv->min_pixclk, intel_state->min_pixclk,
13069 sizeof(intel_state->min_pixclk));
13070 dev_priv->active_crtcs = intel_state->active_crtcs;
13071 dev_priv->cdclk.logical = intel_state->cdclk.logical;
13072 dev_priv->cdclk.actual = intel_state->cdclk.actual;
13075 drm_atomic_state_get(state);
13076 INIT_WORK(&state->commit_work,
13077 nonblock ? intel_atomic_commit_work : NULL);
13079 i915_sw_fence_commit(&intel_state->commit_ready);
13081 i915_sw_fence_wait(&intel_state->commit_ready);
13082 intel_atomic_commit_tail(state);
13088 void intel_crtc_restore_mode(struct drm_crtc *crtc)
13090 struct drm_device *dev = crtc->dev;
13091 struct drm_atomic_state *state;
13092 struct drm_crtc_state *crtc_state;
13095 state = drm_atomic_state_alloc(dev);
13097 DRM_DEBUG_KMS("[CRTC:%d:%s] crtc restore failed, out of memory",
13098 crtc->base.id, crtc->name);
13102 state->acquire_ctx = crtc->dev->mode_config.acquire_ctx;
13105 crtc_state = drm_atomic_get_crtc_state(state, crtc);
13106 ret = PTR_ERR_OR_ZERO(crtc_state);
13108 if (!crtc_state->active)
13111 crtc_state->mode_changed = true;
13112 ret = drm_atomic_commit(state);
13115 if (ret == -EDEADLK) {
13116 drm_atomic_state_clear(state);
13117 drm_modeset_backoff(state->acquire_ctx);
13122 drm_atomic_state_put(state);
13125 static const struct drm_crtc_funcs intel_crtc_funcs = {
13126 .gamma_set = drm_atomic_helper_legacy_gamma_set,
13127 .set_config = drm_atomic_helper_set_config,
13128 .set_property = drm_atomic_helper_crtc_set_property,
13129 .destroy = intel_crtc_destroy,
13130 .page_flip = drm_atomic_helper_page_flip,
13131 .atomic_duplicate_state = intel_crtc_duplicate_state,
13132 .atomic_destroy_state = intel_crtc_destroy_state,
13133 .set_crc_source = intel_crtc_set_crc_source,
13137 * intel_prepare_plane_fb - Prepare fb for usage on plane
13138 * @plane: drm plane to prepare for
13139 * @fb: framebuffer to prepare for presentation
13141 * Prepares a framebuffer for usage on a display plane. Generally this
13142 * involves pinning the underlying object and updating the frontbuffer tracking
13143 * bits. Some older platforms need special physical address handling for
13146 * Must be called with struct_mutex held.
13148 * Returns 0 on success, negative error code on failure.
13151 intel_prepare_plane_fb(struct drm_plane *plane,
13152 struct drm_plane_state *new_state)
13154 struct intel_atomic_state *intel_state =
13155 to_intel_atomic_state(new_state->state);
13156 struct drm_i915_private *dev_priv = to_i915(plane->dev);
13157 struct drm_framebuffer *fb = new_state->fb;
13158 struct drm_i915_gem_object *obj = intel_fb_obj(fb);
13159 struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->state->fb);
13163 if (plane->type == DRM_PLANE_TYPE_CURSOR &&
13164 INTEL_INFO(dev_priv)->cursor_needs_physical) {
13165 const int align = IS_I830(dev_priv) ? 16 * 1024 : 256;
13167 ret = i915_gem_object_attach_phys(obj, align);
13169 DRM_DEBUG_KMS("failed to attach phys object\n");
13173 struct i915_vma *vma;
13175 vma = intel_pin_and_fence_fb_obj(fb, new_state->rotation);
13177 DRM_DEBUG_KMS("failed to pin object\n");
13178 return PTR_ERR(vma);
13181 to_intel_plane_state(new_state)->vma = vma;
13185 if (!obj && !old_obj)
13189 struct drm_crtc_state *crtc_state =
13190 drm_atomic_get_existing_crtc_state(new_state->state,
13191 plane->state->crtc);
13193 /* Big Hammer, we also need to ensure that any pending
13194 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
13195 * current scanout is retired before unpinning the old
13196 * framebuffer. Note that we rely on userspace rendering
13197 * into the buffer attached to the pipe they are waiting
13198 * on. If not, userspace generates a GPU hang with IPEHR
13199 * point to the MI_WAIT_FOR_EVENT.
13201 * This should only fail upon a hung GPU, in which case we
13202 * can safely continue.
13204 if (needs_modeset(crtc_state)) {
13205 ret = i915_sw_fence_await_reservation(&intel_state->commit_ready,
13206 old_obj->resv, NULL,
13214 if (new_state->fence) { /* explicit fencing */
13215 ret = i915_sw_fence_await_dma_fence(&intel_state->commit_ready,
13217 I915_FENCE_TIMEOUT,
13226 if (!new_state->fence) { /* implicit fencing */
13227 ret = i915_sw_fence_await_reservation(&intel_state->commit_ready,
13229 false, I915_FENCE_TIMEOUT,
13234 i915_gem_object_wait_priority(obj, 0, I915_PRIORITY_DISPLAY);
13241 * intel_cleanup_plane_fb - Cleans up an fb after plane use
13242 * @plane: drm plane to clean up for
13243 * @fb: old framebuffer that was on plane
13245 * Cleans up a framebuffer that has just been removed from a plane.
13247 * Must be called with struct_mutex held.
13250 intel_cleanup_plane_fb(struct drm_plane *plane,
13251 struct drm_plane_state *old_state)
13253 struct i915_vma *vma;
13255 /* Should only be called after a successful intel_prepare_plane_fb()! */
13256 vma = fetch_and_zero(&to_intel_plane_state(old_state)->vma);
13258 intel_unpin_fb_vma(vma);
13262 skl_max_scale(struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state)
13264 struct drm_i915_private *dev_priv;
13266 int crtc_clock, max_dotclk;
13268 if (!intel_crtc || !crtc_state->base.enable)
13269 return DRM_PLANE_HELPER_NO_SCALING;
13271 dev_priv = to_i915(intel_crtc->base.dev);
13273 crtc_clock = crtc_state->base.adjusted_mode.crtc_clock;
13274 max_dotclk = to_intel_atomic_state(crtc_state->base.state)->cdclk.logical.cdclk;
13276 if (IS_GEMINILAKE(dev_priv))
13279 if (WARN_ON_ONCE(!crtc_clock || max_dotclk < crtc_clock))
13280 return DRM_PLANE_HELPER_NO_SCALING;
13283 * skl max scale is lower of:
13284 * close to 3 but not 3, -1 is for that purpose
13288 max_scale = min((1 << 16) * 3 - 1,
13289 (1 << 8) * ((max_dotclk << 8) / crtc_clock));
13295 intel_check_primary_plane(struct drm_plane *plane,
13296 struct intel_crtc_state *crtc_state,
13297 struct intel_plane_state *state)
13299 struct drm_i915_private *dev_priv = to_i915(plane->dev);
13300 struct drm_crtc *crtc = state->base.crtc;
13301 int min_scale = DRM_PLANE_HELPER_NO_SCALING;
13302 int max_scale = DRM_PLANE_HELPER_NO_SCALING;
13303 bool can_position = false;
13306 if (INTEL_GEN(dev_priv) >= 9) {
13307 /* use scaler when colorkey is not required */
13308 if (state->ckey.flags == I915_SET_COLORKEY_NONE) {
13310 max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state);
13312 can_position = true;
13315 ret = drm_plane_helper_check_state(&state->base,
13317 min_scale, max_scale,
13318 can_position, true);
13322 if (!state->base.fb)
13325 if (INTEL_GEN(dev_priv) >= 9) {
13326 ret = skl_check_plane_surface(state);
13330 state->ctl = skl_plane_ctl(crtc_state, state);
13332 ret = i9xx_check_plane_surface(state);
13336 state->ctl = i9xx_plane_ctl(crtc_state, state);
13342 static void intel_begin_crtc_commit(struct drm_crtc *crtc,
13343 struct drm_crtc_state *old_crtc_state)
13345 struct drm_device *dev = crtc->dev;
13346 struct drm_i915_private *dev_priv = to_i915(dev);
13347 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
13348 struct intel_crtc_state *intel_cstate =
13349 to_intel_crtc_state(crtc->state);
13350 struct intel_crtc_state *old_intel_cstate =
13351 to_intel_crtc_state(old_crtc_state);
13352 struct intel_atomic_state *old_intel_state =
13353 to_intel_atomic_state(old_crtc_state->state);
13354 bool modeset = needs_modeset(crtc->state);
13357 (intel_cstate->base.color_mgmt_changed ||
13358 intel_cstate->update_pipe)) {
13359 intel_color_set_csc(crtc->state);
13360 intel_color_load_luts(crtc->state);
13363 /* Perform vblank evasion around commit operation */
13364 intel_pipe_update_start(intel_crtc);
13369 if (intel_cstate->update_pipe)
13370 intel_update_pipe_config(intel_crtc, old_intel_cstate);
13371 else if (INTEL_GEN(dev_priv) >= 9)
13372 skl_detach_scalers(intel_crtc);
13375 if (dev_priv->display.atomic_update_watermarks)
13376 dev_priv->display.atomic_update_watermarks(old_intel_state,
13380 static void intel_finish_crtc_commit(struct drm_crtc *crtc,
13381 struct drm_crtc_state *old_crtc_state)
13383 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
13385 intel_pipe_update_end(intel_crtc, NULL);
13389 * intel_plane_destroy - destroy a plane
13390 * @plane: plane to destroy
13392 * Common destruction function for all types of planes (primary, cursor,
13395 void intel_plane_destroy(struct drm_plane *plane)
13397 drm_plane_cleanup(plane);
13398 kfree(to_intel_plane(plane));
13401 const struct drm_plane_funcs intel_plane_funcs = {
13402 .update_plane = drm_atomic_helper_update_plane,
13403 .disable_plane = drm_atomic_helper_disable_plane,
13404 .destroy = intel_plane_destroy,
13405 .set_property = drm_atomic_helper_plane_set_property,
13406 .atomic_get_property = intel_plane_atomic_get_property,
13407 .atomic_set_property = intel_plane_atomic_set_property,
13408 .atomic_duplicate_state = intel_plane_duplicate_state,
13409 .atomic_destroy_state = intel_plane_destroy_state,
13413 intel_legacy_cursor_update(struct drm_plane *plane,
13414 struct drm_crtc *crtc,
13415 struct drm_framebuffer *fb,
13416 int crtc_x, int crtc_y,
13417 unsigned int crtc_w, unsigned int crtc_h,
13418 uint32_t src_x, uint32_t src_y,
13419 uint32_t src_w, uint32_t src_h,
13420 struct drm_modeset_acquire_ctx *ctx)
13422 struct drm_i915_private *dev_priv = to_i915(crtc->dev);
13424 struct drm_plane_state *old_plane_state, *new_plane_state;
13425 struct intel_plane *intel_plane = to_intel_plane(plane);
13426 struct drm_framebuffer *old_fb;
13427 struct drm_crtc_state *crtc_state = crtc->state;
13428 struct i915_vma *old_vma;
13431 * When crtc is inactive or there is a modeset pending,
13432 * wait for it to complete in the slowpath
13434 if (!crtc_state->active || needs_modeset(crtc_state) ||
13435 to_intel_crtc_state(crtc_state)->update_pipe)
13438 old_plane_state = plane->state;
13441 * If any parameters change that may affect watermarks,
13442 * take the slowpath. Only changing fb or position should be
13445 if (old_plane_state->crtc != crtc ||
13446 old_plane_state->src_w != src_w ||
13447 old_plane_state->src_h != src_h ||
13448 old_plane_state->crtc_w != crtc_w ||
13449 old_plane_state->crtc_h != crtc_h ||
13450 !old_plane_state->fb != !fb)
13453 new_plane_state = intel_plane_duplicate_state(plane);
13454 if (!new_plane_state)
13457 drm_atomic_set_fb_for_plane(new_plane_state, fb);
13459 new_plane_state->src_x = src_x;
13460 new_plane_state->src_y = src_y;
13461 new_plane_state->src_w = src_w;
13462 new_plane_state->src_h = src_h;
13463 new_plane_state->crtc_x = crtc_x;
13464 new_plane_state->crtc_y = crtc_y;
13465 new_plane_state->crtc_w = crtc_w;
13466 new_plane_state->crtc_h = crtc_h;
13468 ret = intel_plane_atomic_check_with_state(to_intel_crtc_state(crtc->state),
13469 to_intel_plane_state(new_plane_state));
13473 ret = mutex_lock_interruptible(&dev_priv->drm.struct_mutex);
13477 if (INTEL_INFO(dev_priv)->cursor_needs_physical) {
13478 int align = IS_I830(dev_priv) ? 16 * 1024 : 256;
13480 ret = i915_gem_object_attach_phys(intel_fb_obj(fb), align);
13482 DRM_DEBUG_KMS("failed to attach phys object\n");
13486 struct i915_vma *vma;
13488 vma = intel_pin_and_fence_fb_obj(fb, new_plane_state->rotation);
13490 DRM_DEBUG_KMS("failed to pin object\n");
13492 ret = PTR_ERR(vma);
13496 to_intel_plane_state(new_plane_state)->vma = vma;
13499 old_fb = old_plane_state->fb;
13500 old_vma = to_intel_plane_state(old_plane_state)->vma;
13502 i915_gem_track_fb(intel_fb_obj(old_fb), intel_fb_obj(fb),
13503 intel_plane->frontbuffer_bit);
13505 /* Swap plane state */
13506 new_plane_state->fence = old_plane_state->fence;
13507 *to_intel_plane_state(old_plane_state) = *to_intel_plane_state(new_plane_state);
13508 new_plane_state->fence = NULL;
13509 new_plane_state->fb = old_fb;
13510 to_intel_plane_state(new_plane_state)->vma = old_vma;
13512 if (plane->state->visible) {
13513 trace_intel_update_plane(plane, to_intel_crtc(crtc));
13514 intel_plane->update_plane(plane,
13515 to_intel_crtc_state(crtc->state),
13516 to_intel_plane_state(plane->state));
13518 trace_intel_disable_plane(plane, to_intel_crtc(crtc));
13519 intel_plane->disable_plane(plane, crtc);
13522 intel_cleanup_plane_fb(plane, new_plane_state);
13525 mutex_unlock(&dev_priv->drm.struct_mutex);
13527 intel_plane_destroy_state(plane, new_plane_state);
13531 return drm_atomic_helper_update_plane(plane, crtc, fb,
13532 crtc_x, crtc_y, crtc_w, crtc_h,
13533 src_x, src_y, src_w, src_h, ctx);
13536 static const struct drm_plane_funcs intel_cursor_plane_funcs = {
13537 .update_plane = intel_legacy_cursor_update,
13538 .disable_plane = drm_atomic_helper_disable_plane,
13539 .destroy = intel_plane_destroy,
13540 .set_property = drm_atomic_helper_plane_set_property,
13541 .atomic_get_property = intel_plane_atomic_get_property,
13542 .atomic_set_property = intel_plane_atomic_set_property,
13543 .atomic_duplicate_state = intel_plane_duplicate_state,
13544 .atomic_destroy_state = intel_plane_destroy_state,
13547 static struct intel_plane *
13548 intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
13550 struct intel_plane *primary = NULL;
13551 struct intel_plane_state *state = NULL;
13552 const uint32_t *intel_primary_formats;
13553 unsigned int supported_rotations;
13554 unsigned int num_formats;
13557 primary = kzalloc(sizeof(*primary), GFP_KERNEL);
13563 state = intel_create_plane_state(&primary->base);
13569 primary->base.state = &state->base;
13571 primary->can_scale = false;
13572 primary->max_downscale = 1;
13573 if (INTEL_GEN(dev_priv) >= 9) {
13574 primary->can_scale = true;
13575 state->scaler_id = -1;
13577 primary->pipe = pipe;
13579 * On gen2/3 only plane A can do FBC, but the panel fitter and LVDS
13580 * port is hooked to pipe B. Hence we want plane A feeding pipe B.
13582 if (HAS_FBC(dev_priv) && INTEL_GEN(dev_priv) < 4)
13583 primary->plane = (enum plane) !pipe;
13585 primary->plane = (enum plane) pipe;
13586 primary->id = PLANE_PRIMARY;
13587 primary->frontbuffer_bit = INTEL_FRONTBUFFER_PRIMARY(pipe);
13588 primary->check_plane = intel_check_primary_plane;
13590 if (INTEL_GEN(dev_priv) >= 9) {
13591 intel_primary_formats = skl_primary_formats;
13592 num_formats = ARRAY_SIZE(skl_primary_formats);
13594 primary->update_plane = skylake_update_primary_plane;
13595 primary->disable_plane = skylake_disable_primary_plane;
13596 } else if (INTEL_GEN(dev_priv) >= 4) {
13597 intel_primary_formats = i965_primary_formats;
13598 num_formats = ARRAY_SIZE(i965_primary_formats);
13600 primary->update_plane = i9xx_update_primary_plane;
13601 primary->disable_plane = i9xx_disable_primary_plane;
13603 intel_primary_formats = i8xx_primary_formats;
13604 num_formats = ARRAY_SIZE(i8xx_primary_formats);
13606 primary->update_plane = i9xx_update_primary_plane;
13607 primary->disable_plane = i9xx_disable_primary_plane;
13610 if (INTEL_GEN(dev_priv) >= 9)
13611 ret = drm_universal_plane_init(&dev_priv->drm, &primary->base,
13612 0, &intel_plane_funcs,
13613 intel_primary_formats, num_formats,
13614 DRM_PLANE_TYPE_PRIMARY,
13615 "plane 1%c", pipe_name(pipe));
13616 else if (INTEL_GEN(dev_priv) >= 5 || IS_G4X(dev_priv))
13617 ret = drm_universal_plane_init(&dev_priv->drm, &primary->base,
13618 0, &intel_plane_funcs,
13619 intel_primary_formats, num_formats,
13620 DRM_PLANE_TYPE_PRIMARY,
13621 "primary %c", pipe_name(pipe));
13623 ret = drm_universal_plane_init(&dev_priv->drm, &primary->base,
13624 0, &intel_plane_funcs,
13625 intel_primary_formats, num_formats,
13626 DRM_PLANE_TYPE_PRIMARY,
13627 "plane %c", plane_name(primary->plane));
13631 if (INTEL_GEN(dev_priv) >= 9) {
13632 supported_rotations =
13633 DRM_ROTATE_0 | DRM_ROTATE_90 |
13634 DRM_ROTATE_180 | DRM_ROTATE_270;
13635 } else if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) {
13636 supported_rotations =
13637 DRM_ROTATE_0 | DRM_ROTATE_180 |
13639 } else if (INTEL_GEN(dev_priv) >= 4) {
13640 supported_rotations =
13641 DRM_ROTATE_0 | DRM_ROTATE_180;
13643 supported_rotations = DRM_ROTATE_0;
13646 if (INTEL_GEN(dev_priv) >= 4)
13647 drm_plane_create_rotation_property(&primary->base,
13649 supported_rotations);
13651 drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
13659 return ERR_PTR(ret);
13663 intel_check_cursor_plane(struct drm_plane *plane,
13664 struct intel_crtc_state *crtc_state,
13665 struct intel_plane_state *state)
13667 struct drm_i915_private *dev_priv = to_i915(plane->dev);
13668 struct drm_framebuffer *fb = state->base.fb;
13669 struct drm_i915_gem_object *obj = intel_fb_obj(fb);
13670 enum pipe pipe = to_intel_plane(plane)->pipe;
13674 ret = drm_plane_helper_check_state(&state->base,
13676 DRM_PLANE_HELPER_NO_SCALING,
13677 DRM_PLANE_HELPER_NO_SCALING,
13682 /* if we want to turn off the cursor ignore width and height */
13686 /* Check for which cursor types we support */
13687 if (!cursor_size_ok(dev_priv, state->base.crtc_w,
13688 state->base.crtc_h)) {
13689 DRM_DEBUG("Cursor dimension %dx%d not supported\n",
13690 state->base.crtc_w, state->base.crtc_h);
13694 stride = roundup_pow_of_two(state->base.crtc_w) * 4;
13695 if (obj->base.size < stride * state->base.crtc_h) {
13696 DRM_DEBUG_KMS("buffer is too small\n");
13700 if (fb->modifier != DRM_FORMAT_MOD_LINEAR) {
13701 DRM_DEBUG_KMS("cursor cannot be tiled\n");
13706 * There's something wrong with the cursor on CHV pipe C.
13707 * If it straddles the left edge of the screen then
13708 * moving it away from the edge or disabling it often
13709 * results in a pipe underrun, and often that can lead to
13710 * dead pipe (constant underrun reported, and it scans
13711 * out just a solid color). To recover from that, the
13712 * display power well must be turned off and on again.
13713 * Refuse the put the cursor into that compromised position.
13715 if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_C &&
13716 state->base.visible && state->base.crtc_x < 0) {
13717 DRM_DEBUG_KMS("CHV cursor C not allowed to straddle the left screen edge\n");
13721 if (IS_I845G(dev_priv) || IS_I865G(dev_priv))
13722 state->ctl = i845_cursor_ctl(crtc_state, state);
13724 state->ctl = i9xx_cursor_ctl(crtc_state, state);
13730 intel_disable_cursor_plane(struct drm_plane *plane,
13731 struct drm_crtc *crtc)
13733 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
13735 intel_crtc->cursor_addr = 0;
13736 intel_crtc_update_cursor(crtc, NULL);
13740 intel_update_cursor_plane(struct drm_plane *plane,
13741 const struct intel_crtc_state *crtc_state,
13742 const struct intel_plane_state *state)
13744 struct drm_crtc *crtc = crtc_state->base.crtc;
13745 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
13746 struct drm_i915_private *dev_priv = to_i915(plane->dev);
13747 struct drm_i915_gem_object *obj = intel_fb_obj(state->base.fb);
13752 else if (!INTEL_INFO(dev_priv)->cursor_needs_physical)
13753 addr = intel_plane_ggtt_offset(state);
13755 addr = obj->phys_handle->busaddr;
13757 intel_crtc->cursor_addr = addr;
13758 intel_crtc_update_cursor(crtc, state);
13761 static struct intel_plane *
13762 intel_cursor_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
13764 struct intel_plane *cursor = NULL;
13765 struct intel_plane_state *state = NULL;
13768 cursor = kzalloc(sizeof(*cursor), GFP_KERNEL);
13774 state = intel_create_plane_state(&cursor->base);
13780 cursor->base.state = &state->base;
13782 cursor->can_scale = false;
13783 cursor->max_downscale = 1;
13784 cursor->pipe = pipe;
13785 cursor->plane = pipe;
13786 cursor->id = PLANE_CURSOR;
13787 cursor->frontbuffer_bit = INTEL_FRONTBUFFER_CURSOR(pipe);
13788 cursor->check_plane = intel_check_cursor_plane;
13789 cursor->update_plane = intel_update_cursor_plane;
13790 cursor->disable_plane = intel_disable_cursor_plane;
13792 ret = drm_universal_plane_init(&dev_priv->drm, &cursor->base,
13793 0, &intel_cursor_plane_funcs,
13794 intel_cursor_formats,
13795 ARRAY_SIZE(intel_cursor_formats),
13796 DRM_PLANE_TYPE_CURSOR,
13797 "cursor %c", pipe_name(pipe));
13801 if (INTEL_GEN(dev_priv) >= 4)
13802 drm_plane_create_rotation_property(&cursor->base,
13807 if (INTEL_GEN(dev_priv) >= 9)
13808 state->scaler_id = -1;
13810 drm_plane_helper_add(&cursor->base, &intel_plane_helper_funcs);
13818 return ERR_PTR(ret);
13821 static void intel_crtc_init_scalers(struct intel_crtc *crtc,
13822 struct intel_crtc_state *crtc_state)
13824 struct intel_crtc_scaler_state *scaler_state =
13825 &crtc_state->scaler_state;
13826 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
13829 crtc->num_scalers = dev_priv->info.num_scalers[crtc->pipe];
13830 if (!crtc->num_scalers)
13833 for (i = 0; i < crtc->num_scalers; i++) {
13834 struct intel_scaler *scaler = &scaler_state->scalers[i];
13836 scaler->in_use = 0;
13837 scaler->mode = PS_SCALER_MODE_DYN;
13840 scaler_state->scaler_id = -1;
13843 static int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
13845 struct intel_crtc *intel_crtc;
13846 struct intel_crtc_state *crtc_state = NULL;
13847 struct intel_plane *primary = NULL;
13848 struct intel_plane *cursor = NULL;
13851 intel_crtc = kzalloc(sizeof(*intel_crtc), GFP_KERNEL);
13855 crtc_state = kzalloc(sizeof(*crtc_state), GFP_KERNEL);
13860 intel_crtc->config = crtc_state;
13861 intel_crtc->base.state = &crtc_state->base;
13862 crtc_state->base.crtc = &intel_crtc->base;
13864 primary = intel_primary_plane_create(dev_priv, pipe);
13865 if (IS_ERR(primary)) {
13866 ret = PTR_ERR(primary);
13869 intel_crtc->plane_ids_mask |= BIT(primary->id);
13871 for_each_sprite(dev_priv, pipe, sprite) {
13872 struct intel_plane *plane;
13874 plane = intel_sprite_plane_create(dev_priv, pipe, sprite);
13875 if (IS_ERR(plane)) {
13876 ret = PTR_ERR(plane);
13879 intel_crtc->plane_ids_mask |= BIT(plane->id);
13882 cursor = intel_cursor_plane_create(dev_priv, pipe);
13883 if (IS_ERR(cursor)) {
13884 ret = PTR_ERR(cursor);
13887 intel_crtc->plane_ids_mask |= BIT(cursor->id);
13889 ret = drm_crtc_init_with_planes(&dev_priv->drm, &intel_crtc->base,
13890 &primary->base, &cursor->base,
13892 "pipe %c", pipe_name(pipe));
13896 intel_crtc->pipe = pipe;
13897 intel_crtc->plane = primary->plane;
13899 intel_crtc->cursor_base = ~0;
13900 intel_crtc->cursor_cntl = ~0;
13901 intel_crtc->cursor_size = ~0;
13903 /* initialize shared scalers */
13904 intel_crtc_init_scalers(intel_crtc, crtc_state);
13906 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
13907 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
13908 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = intel_crtc;
13909 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = intel_crtc;
13911 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
13913 intel_color_init(&intel_crtc->base);
13915 WARN_ON(drm_crtc_index(&intel_crtc->base) != intel_crtc->pipe);
13921 * drm_mode_config_cleanup() will free up any
13922 * crtcs/planes already initialized.
13930 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector)
13932 struct drm_device *dev = connector->base.dev;
13934 WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
13936 if (!connector->base.state->crtc)
13937 return INVALID_PIPE;
13939 return to_intel_crtc(connector->base.state->crtc)->pipe;
13942 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
13943 struct drm_file *file)
13945 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
13946 struct drm_crtc *drmmode_crtc;
13947 struct intel_crtc *crtc;
13949 drmmode_crtc = drm_crtc_find(dev, pipe_from_crtc_id->crtc_id);
13953 crtc = to_intel_crtc(drmmode_crtc);
13954 pipe_from_crtc_id->pipe = crtc->pipe;
13959 static int intel_encoder_clones(struct intel_encoder *encoder)
13961 struct drm_device *dev = encoder->base.dev;
13962 struct intel_encoder *source_encoder;
13963 int index_mask = 0;
13966 for_each_intel_encoder(dev, source_encoder) {
13967 if (encoders_cloneable(encoder, source_encoder))
13968 index_mask |= (1 << entry);
13976 static bool has_edp_a(struct drm_i915_private *dev_priv)
13978 if (!IS_MOBILE(dev_priv))
13981 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
13984 if (IS_GEN5(dev_priv) && (I915_READ(FUSE_STRAP) & ILK_eDP_A_DISABLE))
13990 static bool intel_crt_present(struct drm_i915_private *dev_priv)
13992 if (INTEL_GEN(dev_priv) >= 9)
13995 if (IS_HSW_ULT(dev_priv) || IS_BDW_ULT(dev_priv))
13998 if (IS_CHERRYVIEW(dev_priv))
14001 if (HAS_PCH_LPT_H(dev_priv) &&
14002 I915_READ(SFUSE_STRAP) & SFUSE_STRAP_CRT_DISABLED)
14005 /* DDI E can't be used if DDI A requires 4 lanes */
14006 if (HAS_DDI(dev_priv) && I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES)
14009 if (!dev_priv->vbt.int_crt_support)
14015 void intel_pps_unlock_regs_wa(struct drm_i915_private *dev_priv)
14020 if (HAS_DDI(dev_priv))
14023 * This w/a is needed at least on CPT/PPT, but to be sure apply it
14024 * everywhere where registers can be write protected.
14026 if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
14031 for (pps_idx = 0; pps_idx < pps_num; pps_idx++) {
14032 u32 val = I915_READ(PP_CONTROL(pps_idx));
14034 val = (val & ~PANEL_UNLOCK_MASK) | PANEL_UNLOCK_REGS;
14035 I915_WRITE(PP_CONTROL(pps_idx), val);
14039 static void intel_pps_init(struct drm_i915_private *dev_priv)
14041 if (HAS_PCH_SPLIT(dev_priv) || IS_GEN9_LP(dev_priv))
14042 dev_priv->pps_mmio_base = PCH_PPS_BASE;
14043 else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
14044 dev_priv->pps_mmio_base = VLV_PPS_BASE;
14046 dev_priv->pps_mmio_base = PPS_BASE;
14048 intel_pps_unlock_regs_wa(dev_priv);
14051 static void intel_setup_outputs(struct drm_i915_private *dev_priv)
14053 struct intel_encoder *encoder;
14054 bool dpd_is_edp = false;
14056 intel_pps_init(dev_priv);
14059 * intel_edp_init_connector() depends on this completing first, to
14060 * prevent the registeration of both eDP and LVDS and the incorrect
14061 * sharing of the PPS.
14063 intel_lvds_init(dev_priv);
14065 if (intel_crt_present(dev_priv))
14066 intel_crt_init(dev_priv);
14068 if (IS_GEN9_LP(dev_priv)) {
14070 * FIXME: Broxton doesn't support port detection via the
14071 * DDI_BUF_CTL_A or SFUSE_STRAP registers, find another way to
14072 * detect the ports.
14074 intel_ddi_init(dev_priv, PORT_A);
14075 intel_ddi_init(dev_priv, PORT_B);
14076 intel_ddi_init(dev_priv, PORT_C);
14078 intel_dsi_init(dev_priv);
14079 } else if (HAS_DDI(dev_priv)) {
14083 * Haswell uses DDI functions to detect digital outputs.
14084 * On SKL pre-D0 the strap isn't connected, so we assume
14087 found = I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_INIT_DISPLAY_DETECTED;
14088 /* WaIgnoreDDIAStrap: skl */
14089 if (found || IS_GEN9_BC(dev_priv))
14090 intel_ddi_init(dev_priv, PORT_A);
14092 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
14094 found = I915_READ(SFUSE_STRAP);
14096 if (found & SFUSE_STRAP_DDIB_DETECTED)
14097 intel_ddi_init(dev_priv, PORT_B);
14098 if (found & SFUSE_STRAP_DDIC_DETECTED)
14099 intel_ddi_init(dev_priv, PORT_C);
14100 if (found & SFUSE_STRAP_DDID_DETECTED)
14101 intel_ddi_init(dev_priv, PORT_D);
14103 * On SKL we don't have a way to detect DDI-E so we rely on VBT.
14105 if (IS_GEN9_BC(dev_priv) &&
14106 (dev_priv->vbt.ddi_port_info[PORT_E].supports_dp ||
14107 dev_priv->vbt.ddi_port_info[PORT_E].supports_dvi ||
14108 dev_priv->vbt.ddi_port_info[PORT_E].supports_hdmi))
14109 intel_ddi_init(dev_priv, PORT_E);
14111 } else if (HAS_PCH_SPLIT(dev_priv)) {
14113 dpd_is_edp = intel_dp_is_edp(dev_priv, PORT_D);
14115 if (has_edp_a(dev_priv))
14116 intel_dp_init(dev_priv, DP_A, PORT_A);
14118 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
14119 /* PCH SDVOB multiplex with HDMIB */
14120 found = intel_sdvo_init(dev_priv, PCH_SDVOB, PORT_B);
14122 intel_hdmi_init(dev_priv, PCH_HDMIB, PORT_B);
14123 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
14124 intel_dp_init(dev_priv, PCH_DP_B, PORT_B);
14127 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
14128 intel_hdmi_init(dev_priv, PCH_HDMIC, PORT_C);
14130 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
14131 intel_hdmi_init(dev_priv, PCH_HDMID, PORT_D);
14133 if (I915_READ(PCH_DP_C) & DP_DETECTED)
14134 intel_dp_init(dev_priv, PCH_DP_C, PORT_C);
14136 if (I915_READ(PCH_DP_D) & DP_DETECTED)
14137 intel_dp_init(dev_priv, PCH_DP_D, PORT_D);
14138 } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
14139 bool has_edp, has_port;
14142 * The DP_DETECTED bit is the latched state of the DDC
14143 * SDA pin at boot. However since eDP doesn't require DDC
14144 * (no way to plug in a DP->HDMI dongle) the DDC pins for
14145 * eDP ports may have been muxed to an alternate function.
14146 * Thus we can't rely on the DP_DETECTED bit alone to detect
14147 * eDP ports. Consult the VBT as well as DP_DETECTED to
14148 * detect eDP ports.
14150 * Sadly the straps seem to be missing sometimes even for HDMI
14151 * ports (eg. on Voyo V3 - CHT x7-Z8700), so check both strap
14152 * and VBT for the presence of the port. Additionally we can't
14153 * trust the port type the VBT declares as we've seen at least
14154 * HDMI ports that the VBT claim are DP or eDP.
14156 has_edp = intel_dp_is_edp(dev_priv, PORT_B);
14157 has_port = intel_bios_is_port_present(dev_priv, PORT_B);
14158 if (I915_READ(VLV_DP_B) & DP_DETECTED || has_port)
14159 has_edp &= intel_dp_init(dev_priv, VLV_DP_B, PORT_B);
14160 if ((I915_READ(VLV_HDMIB) & SDVO_DETECTED || has_port) && !has_edp)
14161 intel_hdmi_init(dev_priv, VLV_HDMIB, PORT_B);
14163 has_edp = intel_dp_is_edp(dev_priv, PORT_C);
14164 has_port = intel_bios_is_port_present(dev_priv, PORT_C);
14165 if (I915_READ(VLV_DP_C) & DP_DETECTED || has_port)
14166 has_edp &= intel_dp_init(dev_priv, VLV_DP_C, PORT_C);
14167 if ((I915_READ(VLV_HDMIC) & SDVO_DETECTED || has_port) && !has_edp)
14168 intel_hdmi_init(dev_priv, VLV_HDMIC, PORT_C);
14170 if (IS_CHERRYVIEW(dev_priv)) {
14172 * eDP not supported on port D,
14173 * so no need to worry about it
14175 has_port = intel_bios_is_port_present(dev_priv, PORT_D);
14176 if (I915_READ(CHV_DP_D) & DP_DETECTED || has_port)
14177 intel_dp_init(dev_priv, CHV_DP_D, PORT_D);
14178 if (I915_READ(CHV_HDMID) & SDVO_DETECTED || has_port)
14179 intel_hdmi_init(dev_priv, CHV_HDMID, PORT_D);
14182 intel_dsi_init(dev_priv);
14183 } else if (!IS_GEN2(dev_priv) && !IS_PINEVIEW(dev_priv)) {
14184 bool found = false;
14186 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
14187 DRM_DEBUG_KMS("probing SDVOB\n");
14188 found = intel_sdvo_init(dev_priv, GEN3_SDVOB, PORT_B);
14189 if (!found && IS_G4X(dev_priv)) {
14190 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
14191 intel_hdmi_init(dev_priv, GEN4_HDMIB, PORT_B);
14194 if (!found && IS_G4X(dev_priv))
14195 intel_dp_init(dev_priv, DP_B, PORT_B);
14198 /* Before G4X SDVOC doesn't have its own detect register */
14200 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
14201 DRM_DEBUG_KMS("probing SDVOC\n");
14202 found = intel_sdvo_init(dev_priv, GEN3_SDVOC, PORT_C);
14205 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
14207 if (IS_G4X(dev_priv)) {
14208 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
14209 intel_hdmi_init(dev_priv, GEN4_HDMIC, PORT_C);
14211 if (IS_G4X(dev_priv))
14212 intel_dp_init(dev_priv, DP_C, PORT_C);
14215 if (IS_G4X(dev_priv) && (I915_READ(DP_D) & DP_DETECTED))
14216 intel_dp_init(dev_priv, DP_D, PORT_D);
14217 } else if (IS_GEN2(dev_priv))
14218 intel_dvo_init(dev_priv);
14220 if (SUPPORTS_TV(dev_priv))
14221 intel_tv_init(dev_priv);
14223 intel_psr_init(dev_priv);
14225 for_each_intel_encoder(&dev_priv->drm, encoder) {
14226 encoder->base.possible_crtcs = encoder->crtc_mask;
14227 encoder->base.possible_clones =
14228 intel_encoder_clones(encoder);
14231 intel_init_pch_refclk(dev_priv);
14233 drm_helper_move_panel_connectors_to_head(&dev_priv->drm);
14236 static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
14238 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
14240 drm_framebuffer_cleanup(fb);
14242 i915_gem_object_lock(intel_fb->obj);
14243 WARN_ON(!intel_fb->obj->framebuffer_references--);
14244 i915_gem_object_unlock(intel_fb->obj);
14246 i915_gem_object_put(intel_fb->obj);
14251 static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
14252 struct drm_file *file,
14253 unsigned int *handle)
14255 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
14256 struct drm_i915_gem_object *obj = intel_fb->obj;
14258 if (obj->userptr.mm) {
14259 DRM_DEBUG("attempting to use a userptr for a framebuffer, denied\n");
14263 return drm_gem_handle_create(file, &obj->base, handle);
14266 static int intel_user_framebuffer_dirty(struct drm_framebuffer *fb,
14267 struct drm_file *file,
14268 unsigned flags, unsigned color,
14269 struct drm_clip_rect *clips,
14270 unsigned num_clips)
14272 struct drm_i915_gem_object *obj = intel_fb_obj(fb);
14274 i915_gem_object_flush_if_display(obj);
14275 intel_fb_obj_flush(obj, ORIGIN_DIRTYFB);
14280 static const struct drm_framebuffer_funcs intel_fb_funcs = {
14281 .destroy = intel_user_framebuffer_destroy,
14282 .create_handle = intel_user_framebuffer_create_handle,
14283 .dirty = intel_user_framebuffer_dirty,
14287 u32 intel_fb_pitch_limit(struct drm_i915_private *dev_priv,
14288 uint64_t fb_modifier, uint32_t pixel_format)
14290 u32 gen = INTEL_GEN(dev_priv);
14293 int cpp = drm_format_plane_cpp(pixel_format, 0);
14295 /* "The stride in bytes must not exceed the of the size of 8K
14296 * pixels and 32K bytes."
14298 return min(8192 * cpp, 32768);
14299 } else if (gen >= 5 && !HAS_GMCH_DISPLAY(dev_priv)) {
14301 } else if (gen >= 4) {
14302 if (fb_modifier == I915_FORMAT_MOD_X_TILED)
14306 } else if (gen >= 3) {
14307 if (fb_modifier == I915_FORMAT_MOD_X_TILED)
14312 /* XXX DSPC is limited to 4k tiled */
14317 static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
14318 struct drm_i915_gem_object *obj,
14319 struct drm_mode_fb_cmd2 *mode_cmd)
14321 struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
14322 struct drm_format_name_buf format_name;
14323 u32 pitch_limit, stride_alignment;
14324 unsigned int tiling, stride;
14327 i915_gem_object_lock(obj);
14328 obj->framebuffer_references++;
14329 tiling = i915_gem_object_get_tiling(obj);
14330 stride = i915_gem_object_get_stride(obj);
14331 i915_gem_object_unlock(obj);
14333 if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
14335 * If there's a fence, enforce that
14336 * the fb modifier and tiling mode match.
14338 if (tiling != I915_TILING_NONE &&
14339 tiling != intel_fb_modifier_to_tiling(mode_cmd->modifier[0])) {
14340 DRM_DEBUG_KMS("tiling_mode doesn't match fb modifier\n");
14344 if (tiling == I915_TILING_X) {
14345 mode_cmd->modifier[0] = I915_FORMAT_MOD_X_TILED;
14346 } else if (tiling == I915_TILING_Y) {
14347 DRM_DEBUG_KMS("No Y tiling for legacy addfb\n");
14352 /* Passed in modifier sanity checking. */
14353 switch (mode_cmd->modifier[0]) {
14354 case I915_FORMAT_MOD_Y_TILED:
14355 case I915_FORMAT_MOD_Yf_TILED:
14356 if (INTEL_GEN(dev_priv) < 9) {
14357 DRM_DEBUG_KMS("Unsupported tiling 0x%llx!\n",
14358 mode_cmd->modifier[0]);
14361 case DRM_FORMAT_MOD_LINEAR:
14362 case I915_FORMAT_MOD_X_TILED:
14365 DRM_DEBUG_KMS("Unsupported fb modifier 0x%llx!\n",
14366 mode_cmd->modifier[0]);
14371 * gen2/3 display engine uses the fence if present,
14372 * so the tiling mode must match the fb modifier exactly.
14374 if (INTEL_INFO(dev_priv)->gen < 4 &&
14375 tiling != intel_fb_modifier_to_tiling(mode_cmd->modifier[0])) {
14376 DRM_DEBUG_KMS("tiling_mode must match fb modifier exactly on gen2/3\n");
14380 pitch_limit = intel_fb_pitch_limit(dev_priv, mode_cmd->modifier[0],
14381 mode_cmd->pixel_format);
14382 if (mode_cmd->pitches[0] > pitch_limit) {
14383 DRM_DEBUG_KMS("%s pitch (%u) must be at most %d\n",
14384 mode_cmd->modifier[0] != DRM_FORMAT_MOD_LINEAR ?
14385 "tiled" : "linear",
14386 mode_cmd->pitches[0], pitch_limit);
14391 * If there's a fence, enforce that
14392 * the fb pitch and fence stride match.
14394 if (tiling != I915_TILING_NONE && mode_cmd->pitches[0] != stride) {
14395 DRM_DEBUG_KMS("pitch (%d) must match tiling stride (%d)\n",
14396 mode_cmd->pitches[0], stride);
14400 /* Reject formats not supported by any plane early. */
14401 switch (mode_cmd->pixel_format) {
14402 case DRM_FORMAT_C8:
14403 case DRM_FORMAT_RGB565:
14404 case DRM_FORMAT_XRGB8888:
14405 case DRM_FORMAT_ARGB8888:
14407 case DRM_FORMAT_XRGB1555:
14408 if (INTEL_GEN(dev_priv) > 3) {
14409 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14410 drm_get_format_name(mode_cmd->pixel_format, &format_name));
14414 case DRM_FORMAT_ABGR8888:
14415 if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv) &&
14416 INTEL_GEN(dev_priv) < 9) {
14417 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14418 drm_get_format_name(mode_cmd->pixel_format, &format_name));
14422 case DRM_FORMAT_XBGR8888:
14423 case DRM_FORMAT_XRGB2101010:
14424 case DRM_FORMAT_XBGR2101010:
14425 if (INTEL_GEN(dev_priv) < 4) {
14426 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14427 drm_get_format_name(mode_cmd->pixel_format, &format_name));
14431 case DRM_FORMAT_ABGR2101010:
14432 if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv)) {
14433 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14434 drm_get_format_name(mode_cmd->pixel_format, &format_name));
14438 case DRM_FORMAT_YUYV:
14439 case DRM_FORMAT_UYVY:
14440 case DRM_FORMAT_YVYU:
14441 case DRM_FORMAT_VYUY:
14442 if (INTEL_GEN(dev_priv) < 5) {
14443 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14444 drm_get_format_name(mode_cmd->pixel_format, &format_name));
14449 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14450 drm_get_format_name(mode_cmd->pixel_format, &format_name));
14454 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
14455 if (mode_cmd->offsets[0] != 0)
14458 drm_helper_mode_fill_fb_struct(&dev_priv->drm,
14459 &intel_fb->base, mode_cmd);
14461 stride_alignment = intel_fb_stride_alignment(&intel_fb->base, 0);
14462 if (mode_cmd->pitches[0] & (stride_alignment - 1)) {
14463 DRM_DEBUG_KMS("pitch (%d) must be at least %u byte aligned\n",
14464 mode_cmd->pitches[0], stride_alignment);
14468 intel_fb->obj = obj;
14470 ret = intel_fill_fb_info(dev_priv, &intel_fb->base);
14474 ret = drm_framebuffer_init(obj->base.dev,
14478 DRM_ERROR("framebuffer init failed %d\n", ret);
14485 i915_gem_object_lock(obj);
14486 obj->framebuffer_references--;
14487 i915_gem_object_unlock(obj);
14491 static struct drm_framebuffer *
14492 intel_user_framebuffer_create(struct drm_device *dev,
14493 struct drm_file *filp,
14494 const struct drm_mode_fb_cmd2 *user_mode_cmd)
14496 struct drm_framebuffer *fb;
14497 struct drm_i915_gem_object *obj;
14498 struct drm_mode_fb_cmd2 mode_cmd = *user_mode_cmd;
14500 obj = i915_gem_object_lookup(filp, mode_cmd.handles[0]);
14502 return ERR_PTR(-ENOENT);
14504 fb = intel_framebuffer_create(obj, &mode_cmd);
14506 i915_gem_object_put(obj);
14511 static void intel_atomic_state_free(struct drm_atomic_state *state)
14513 struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
14515 drm_atomic_state_default_release(state);
14517 i915_sw_fence_fini(&intel_state->commit_ready);
14522 static const struct drm_mode_config_funcs intel_mode_funcs = {
14523 .fb_create = intel_user_framebuffer_create,
14524 .output_poll_changed = intel_fbdev_output_poll_changed,
14525 .atomic_check = intel_atomic_check,
14526 .atomic_commit = intel_atomic_commit,
14527 .atomic_state_alloc = intel_atomic_state_alloc,
14528 .atomic_state_clear = intel_atomic_state_clear,
14529 .atomic_state_free = intel_atomic_state_free,
14533 * intel_init_display_hooks - initialize the display modesetting hooks
14534 * @dev_priv: device private
14536 void intel_init_display_hooks(struct drm_i915_private *dev_priv)
14538 intel_init_cdclk_hooks(dev_priv);
14540 if (INTEL_INFO(dev_priv)->gen >= 9) {
14541 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
14542 dev_priv->display.get_initial_plane_config =
14543 skylake_get_initial_plane_config;
14544 dev_priv->display.crtc_compute_clock =
14545 haswell_crtc_compute_clock;
14546 dev_priv->display.crtc_enable = haswell_crtc_enable;
14547 dev_priv->display.crtc_disable = haswell_crtc_disable;
14548 } else if (HAS_DDI(dev_priv)) {
14549 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
14550 dev_priv->display.get_initial_plane_config =
14551 ironlake_get_initial_plane_config;
14552 dev_priv->display.crtc_compute_clock =
14553 haswell_crtc_compute_clock;
14554 dev_priv->display.crtc_enable = haswell_crtc_enable;
14555 dev_priv->display.crtc_disable = haswell_crtc_disable;
14556 } else if (HAS_PCH_SPLIT(dev_priv)) {
14557 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
14558 dev_priv->display.get_initial_plane_config =
14559 ironlake_get_initial_plane_config;
14560 dev_priv->display.crtc_compute_clock =
14561 ironlake_crtc_compute_clock;
14562 dev_priv->display.crtc_enable = ironlake_crtc_enable;
14563 dev_priv->display.crtc_disable = ironlake_crtc_disable;
14564 } else if (IS_CHERRYVIEW(dev_priv)) {
14565 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
14566 dev_priv->display.get_initial_plane_config =
14567 i9xx_get_initial_plane_config;
14568 dev_priv->display.crtc_compute_clock = chv_crtc_compute_clock;
14569 dev_priv->display.crtc_enable = valleyview_crtc_enable;
14570 dev_priv->display.crtc_disable = i9xx_crtc_disable;
14571 } else if (IS_VALLEYVIEW(dev_priv)) {
14572 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
14573 dev_priv->display.get_initial_plane_config =
14574 i9xx_get_initial_plane_config;
14575 dev_priv->display.crtc_compute_clock = vlv_crtc_compute_clock;
14576 dev_priv->display.crtc_enable = valleyview_crtc_enable;
14577 dev_priv->display.crtc_disable = i9xx_crtc_disable;
14578 } else if (IS_G4X(dev_priv)) {
14579 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
14580 dev_priv->display.get_initial_plane_config =
14581 i9xx_get_initial_plane_config;
14582 dev_priv->display.crtc_compute_clock = g4x_crtc_compute_clock;
14583 dev_priv->display.crtc_enable = i9xx_crtc_enable;
14584 dev_priv->display.crtc_disable = i9xx_crtc_disable;
14585 } else if (IS_PINEVIEW(dev_priv)) {
14586 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
14587 dev_priv->display.get_initial_plane_config =
14588 i9xx_get_initial_plane_config;
14589 dev_priv->display.crtc_compute_clock = pnv_crtc_compute_clock;
14590 dev_priv->display.crtc_enable = i9xx_crtc_enable;
14591 dev_priv->display.crtc_disable = i9xx_crtc_disable;
14592 } else if (!IS_GEN2(dev_priv)) {
14593 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
14594 dev_priv->display.get_initial_plane_config =
14595 i9xx_get_initial_plane_config;
14596 dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock;
14597 dev_priv->display.crtc_enable = i9xx_crtc_enable;
14598 dev_priv->display.crtc_disable = i9xx_crtc_disable;
14600 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
14601 dev_priv->display.get_initial_plane_config =
14602 i9xx_get_initial_plane_config;
14603 dev_priv->display.crtc_compute_clock = i8xx_crtc_compute_clock;
14604 dev_priv->display.crtc_enable = i9xx_crtc_enable;
14605 dev_priv->display.crtc_disable = i9xx_crtc_disable;
14608 if (IS_GEN5(dev_priv)) {
14609 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
14610 } else if (IS_GEN6(dev_priv)) {
14611 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
14612 } else if (IS_IVYBRIDGE(dev_priv)) {
14613 /* FIXME: detect B0+ stepping and use auto training */
14614 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
14615 } else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
14616 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
14619 if (dev_priv->info.gen >= 9)
14620 dev_priv->display.update_crtcs = skl_update_crtcs;
14622 dev_priv->display.update_crtcs = intel_update_crtcs;
14624 switch (INTEL_INFO(dev_priv)->gen) {
14626 dev_priv->display.queue_flip = intel_gen2_queue_flip;
14630 dev_priv->display.queue_flip = intel_gen3_queue_flip;
14635 dev_priv->display.queue_flip = intel_gen4_queue_flip;
14639 dev_priv->display.queue_flip = intel_gen6_queue_flip;
14642 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
14643 dev_priv->display.queue_flip = intel_gen7_queue_flip;
14646 /* Drop through - unsupported since execlist only. */
14648 /* Default just returns -ENODEV to indicate unsupported */
14649 dev_priv->display.queue_flip = intel_default_queue_flip;
14654 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
14655 * resume, or other times. This quirk makes sure that's the case for
14656 * affected systems.
14658 static void quirk_pipea_force(struct drm_device *dev)
14660 struct drm_i915_private *dev_priv = to_i915(dev);
14662 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
14663 DRM_INFO("applying pipe a force quirk\n");
14666 static void quirk_pipeb_force(struct drm_device *dev)
14668 struct drm_i915_private *dev_priv = to_i915(dev);
14670 dev_priv->quirks |= QUIRK_PIPEB_FORCE;
14671 DRM_INFO("applying pipe b force quirk\n");
14675 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
14677 static void quirk_ssc_force_disable(struct drm_device *dev)
14679 struct drm_i915_private *dev_priv = to_i915(dev);
14680 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
14681 DRM_INFO("applying lvds SSC disable quirk\n");
14685 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
14688 static void quirk_invert_brightness(struct drm_device *dev)
14690 struct drm_i915_private *dev_priv = to_i915(dev);
14691 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
14692 DRM_INFO("applying inverted panel brightness quirk\n");
14695 /* Some VBT's incorrectly indicate no backlight is present */
14696 static void quirk_backlight_present(struct drm_device *dev)
14698 struct drm_i915_private *dev_priv = to_i915(dev);
14699 dev_priv->quirks |= QUIRK_BACKLIGHT_PRESENT;
14700 DRM_INFO("applying backlight present quirk\n");
14703 struct intel_quirk {
14705 int subsystem_vendor;
14706 int subsystem_device;
14707 void (*hook)(struct drm_device *dev);
14710 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
14711 struct intel_dmi_quirk {
14712 void (*hook)(struct drm_device *dev);
14713 const struct dmi_system_id (*dmi_id_list)[];
14716 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
14718 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
14722 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
14724 .dmi_id_list = &(const struct dmi_system_id[]) {
14726 .callback = intel_dmi_reverse_brightness,
14727 .ident = "NCR Corporation",
14728 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
14729 DMI_MATCH(DMI_PRODUCT_NAME, ""),
14732 { } /* terminating entry */
14734 .hook = quirk_invert_brightness,
14738 static struct intel_quirk intel_quirks[] = {
14739 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
14740 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
14742 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
14743 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
14745 /* 830 needs to leave pipe A & dpll A up */
14746 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
14748 /* 830 needs to leave pipe B & dpll B up */
14749 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipeb_force },
14751 /* Lenovo U160 cannot use SSC on LVDS */
14752 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
14754 /* Sony Vaio Y cannot use SSC on LVDS */
14755 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
14757 /* Acer Aspire 5734Z must invert backlight brightness */
14758 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
14760 /* Acer/eMachines G725 */
14761 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
14763 /* Acer/eMachines e725 */
14764 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
14766 /* Acer/Packard Bell NCL20 */
14767 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
14769 /* Acer Aspire 4736Z */
14770 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
14772 /* Acer Aspire 5336 */
14773 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
14775 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
14776 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },
14778 /* Acer C720 Chromebook (Core i3 4005U) */
14779 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present },
14781 /* Apple Macbook 2,1 (Core 2 T7400) */
14782 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present },
14784 /* Apple Macbook 4,1 */
14785 { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present },
14787 /* Toshiba CB35 Chromebook (Celeron 2955U) */
14788 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },
14790 /* HP Chromebook 14 (Celeron 2955U) */
14791 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
14793 /* Dell Chromebook 11 */
14794 { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },
14796 /* Dell Chromebook 11 (2015 version) */
14797 { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present },
14800 static void intel_init_quirks(struct drm_device *dev)
14802 struct pci_dev *d = dev->pdev;
14805 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
14806 struct intel_quirk *q = &intel_quirks[i];
14808 if (d->device == q->device &&
14809 (d->subsystem_vendor == q->subsystem_vendor ||
14810 q->subsystem_vendor == PCI_ANY_ID) &&
14811 (d->subsystem_device == q->subsystem_device ||
14812 q->subsystem_device == PCI_ANY_ID))
14815 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
14816 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
14817 intel_dmi_quirks[i].hook(dev);
14821 /* Disable the VGA plane that we never use */
14822 static void i915_disable_vga(struct drm_i915_private *dev_priv)
14824 struct pci_dev *pdev = dev_priv->drm.pdev;
14826 i915_reg_t vga_reg = i915_vgacntrl_reg(dev_priv);
14828 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
14829 vga_get_uninterruptible(pdev, VGA_RSRC_LEGACY_IO);
14830 outb(SR01, VGA_SR_INDEX);
14831 sr1 = inb(VGA_SR_DATA);
14832 outb(sr1 | 1<<5, VGA_SR_DATA);
14833 vga_put(pdev, VGA_RSRC_LEGACY_IO);
14836 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
14837 POSTING_READ(vga_reg);
14840 void intel_modeset_init_hw(struct drm_device *dev)
14842 struct drm_i915_private *dev_priv = to_i915(dev);
14844 intel_update_cdclk(dev_priv);
14845 dev_priv->cdclk.logical = dev_priv->cdclk.actual = dev_priv->cdclk.hw;
14847 intel_init_clock_gating(dev_priv);
14851 * Calculate what we think the watermarks should be for the state we've read
14852 * out of the hardware and then immediately program those watermarks so that
14853 * we ensure the hardware settings match our internal state.
14855 * We can calculate what we think WM's should be by creating a duplicate of the
14856 * current state (which was constructed during hardware readout) and running it
14857 * through the atomic check code to calculate new watermark values in the
14860 static void sanitize_watermarks(struct drm_device *dev)
14862 struct drm_i915_private *dev_priv = to_i915(dev);
14863 struct drm_atomic_state *state;
14864 struct intel_atomic_state *intel_state;
14865 struct drm_crtc *crtc;
14866 struct drm_crtc_state *cstate;
14867 struct drm_modeset_acquire_ctx ctx;
14871 /* Only supported on platforms that use atomic watermark design */
14872 if (!dev_priv->display.optimize_watermarks)
14876 * We need to hold connection_mutex before calling duplicate_state so
14877 * that the connector loop is protected.
14879 drm_modeset_acquire_init(&ctx, 0);
14881 ret = drm_modeset_lock_all_ctx(dev, &ctx);
14882 if (ret == -EDEADLK) {
14883 drm_modeset_backoff(&ctx);
14885 } else if (WARN_ON(ret)) {
14889 state = drm_atomic_helper_duplicate_state(dev, &ctx);
14890 if (WARN_ON(IS_ERR(state)))
14893 intel_state = to_intel_atomic_state(state);
14896 * Hardware readout is the only time we don't want to calculate
14897 * intermediate watermarks (since we don't trust the current
14900 if (!HAS_GMCH_DISPLAY(dev_priv))
14901 intel_state->skip_intermediate_wm = true;
14903 ret = intel_atomic_check(dev, state);
14906 * If we fail here, it means that the hardware appears to be
14907 * programmed in a way that shouldn't be possible, given our
14908 * understanding of watermark requirements. This might mean a
14909 * mistake in the hardware readout code or a mistake in the
14910 * watermark calculations for a given platform. Raise a WARN
14911 * so that this is noticeable.
14913 * If this actually happens, we'll have to just leave the
14914 * BIOS-programmed watermarks untouched and hope for the best.
14916 WARN(true, "Could not determine valid watermarks for inherited state\n");
14920 /* Write calculated watermark values back */
14921 for_each_new_crtc_in_state(state, crtc, cstate, i) {
14922 struct intel_crtc_state *cs = to_intel_crtc_state(cstate);
14924 cs->wm.need_postvbl_update = true;
14925 dev_priv->display.optimize_watermarks(intel_state, cs);
14929 drm_atomic_state_put(state);
14931 drm_modeset_drop_locks(&ctx);
14932 drm_modeset_acquire_fini(&ctx);
14935 int intel_modeset_init(struct drm_device *dev)
14937 struct drm_i915_private *dev_priv = to_i915(dev);
14938 struct i915_ggtt *ggtt = &dev_priv->ggtt;
14940 struct intel_crtc *crtc;
14942 drm_mode_config_init(dev);
14944 dev->mode_config.min_width = 0;
14945 dev->mode_config.min_height = 0;
14947 dev->mode_config.preferred_depth = 24;
14948 dev->mode_config.prefer_shadow = 1;
14950 dev->mode_config.allow_fb_modifiers = true;
14952 dev->mode_config.funcs = &intel_mode_funcs;
14954 INIT_WORK(&dev_priv->atomic_helper.free_work,
14955 intel_atomic_helper_free_state_worker);
14957 intel_init_quirks(dev);
14959 intel_init_pm(dev_priv);
14961 if (INTEL_INFO(dev_priv)->num_pipes == 0)
14965 * There may be no VBT; and if the BIOS enabled SSC we can
14966 * just keep using it to avoid unnecessary flicker. Whereas if the
14967 * BIOS isn't using it, don't assume it will work even if the VBT
14968 * indicates as much.
14970 if (HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv)) {
14971 bool bios_lvds_use_ssc = !!(I915_READ(PCH_DREF_CONTROL) &
14974 if (dev_priv->vbt.lvds_use_ssc != bios_lvds_use_ssc) {
14975 DRM_DEBUG_KMS("SSC %sabled by BIOS, overriding VBT which says %sabled\n",
14976 bios_lvds_use_ssc ? "en" : "dis",
14977 dev_priv->vbt.lvds_use_ssc ? "en" : "dis");
14978 dev_priv->vbt.lvds_use_ssc = bios_lvds_use_ssc;
14982 if (IS_GEN2(dev_priv)) {
14983 dev->mode_config.max_width = 2048;
14984 dev->mode_config.max_height = 2048;
14985 } else if (IS_GEN3(dev_priv)) {
14986 dev->mode_config.max_width = 4096;
14987 dev->mode_config.max_height = 4096;
14989 dev->mode_config.max_width = 8192;
14990 dev->mode_config.max_height = 8192;
14993 if (IS_I845G(dev_priv) || IS_I865G(dev_priv)) {
14994 dev->mode_config.cursor_width = IS_I845G(dev_priv) ? 64 : 512;
14995 dev->mode_config.cursor_height = 1023;
14996 } else if (IS_GEN2(dev_priv)) {
14997 dev->mode_config.cursor_width = GEN2_CURSOR_WIDTH;
14998 dev->mode_config.cursor_height = GEN2_CURSOR_HEIGHT;
15000 dev->mode_config.cursor_width = MAX_CURSOR_WIDTH;
15001 dev->mode_config.cursor_height = MAX_CURSOR_HEIGHT;
15004 dev->mode_config.fb_base = ggtt->mappable_base;
15006 DRM_DEBUG_KMS("%d display pipe%s available.\n",
15007 INTEL_INFO(dev_priv)->num_pipes,
15008 INTEL_INFO(dev_priv)->num_pipes > 1 ? "s" : "");
15010 for_each_pipe(dev_priv, pipe) {
15013 ret = intel_crtc_init(dev_priv, pipe);
15015 drm_mode_config_cleanup(dev);
15020 intel_shared_dpll_init(dev);
15022 intel_update_czclk(dev_priv);
15023 intel_modeset_init_hw(dev);
15025 if (dev_priv->max_cdclk_freq == 0)
15026 intel_update_max_cdclk(dev_priv);
15028 /* Just disable it once at startup */
15029 i915_disable_vga(dev_priv);
15030 intel_setup_outputs(dev_priv);
15032 drm_modeset_lock_all(dev);
15033 intel_modeset_setup_hw_state(dev);
15034 drm_modeset_unlock_all(dev);
15036 for_each_intel_crtc(dev, crtc) {
15037 struct intel_initial_plane_config plane_config = {};
15043 * Note that reserving the BIOS fb up front prevents us
15044 * from stuffing other stolen allocations like the ring
15045 * on top. This prevents some ugliness at boot time, and
15046 * can even allow for smooth boot transitions if the BIOS
15047 * fb is large enough for the active pipe configuration.
15049 dev_priv->display.get_initial_plane_config(crtc,
15053 * If the fb is shared between multiple heads, we'll
15054 * just get the first one.
15056 intel_find_initial_plane_obj(crtc, &plane_config);
15060 * Make sure hardware watermarks really match the state we read out.
15061 * Note that we need to do this after reconstructing the BIOS fb's
15062 * since the watermark calculation done here will use pstate->fb.
15064 if (!HAS_GMCH_DISPLAY(dev_priv))
15065 sanitize_watermarks(dev);
15070 static void intel_enable_pipe_a(struct drm_device *dev)
15072 struct intel_connector *connector;
15073 struct drm_connector_list_iter conn_iter;
15074 struct drm_connector *crt = NULL;
15075 struct intel_load_detect_pipe load_detect_temp;
15076 struct drm_modeset_acquire_ctx *ctx = dev->mode_config.acquire_ctx;
15079 /* We can't just switch on the pipe A, we need to set things up with a
15080 * proper mode and output configuration. As a gross hack, enable pipe A
15081 * by enabling the load detect pipe once. */
15082 drm_connector_list_iter_begin(dev, &conn_iter);
15083 for_each_intel_connector_iter(connector, &conn_iter) {
15084 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
15085 crt = &connector->base;
15089 drm_connector_list_iter_end(&conn_iter);
15094 ret = intel_get_load_detect_pipe(crt, NULL, &load_detect_temp, ctx);
15095 WARN(ret < 0, "All modeset mutexes are locked, but intel_get_load_detect_pipe failed\n");
15098 intel_release_load_detect_pipe(crt, &load_detect_temp, ctx);
15102 intel_check_plane_mapping(struct intel_crtc *crtc)
15104 struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
15107 if (INTEL_INFO(dev_priv)->num_pipes == 1)
15110 val = I915_READ(DSPCNTR(!crtc->plane));
15112 if ((val & DISPLAY_PLANE_ENABLE) &&
15113 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
15119 static bool intel_crtc_has_encoders(struct intel_crtc *crtc)
15121 struct drm_device *dev = crtc->base.dev;
15122 struct intel_encoder *encoder;
15124 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
15130 static struct intel_connector *intel_encoder_find_connector(struct intel_encoder *encoder)
15132 struct drm_device *dev = encoder->base.dev;
15133 struct intel_connector *connector;
15135 for_each_connector_on_encoder(dev, &encoder->base, connector)
15141 static bool has_pch_trancoder(struct drm_i915_private *dev_priv,
15142 enum transcoder pch_transcoder)
15144 return HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv) ||
15145 (HAS_PCH_LPT_H(dev_priv) && pch_transcoder == TRANSCODER_A);
15148 static void intel_sanitize_crtc(struct intel_crtc *crtc)
15150 struct drm_device *dev = crtc->base.dev;
15151 struct drm_i915_private *dev_priv = to_i915(dev);
15152 enum transcoder cpu_transcoder = crtc->config->cpu_transcoder;
15154 /* Clear any frame start delays used for debugging left by the BIOS */
15155 if (!transcoder_is_dsi(cpu_transcoder)) {
15156 i915_reg_t reg = PIPECONF(cpu_transcoder);
15159 I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
15162 /* restore vblank interrupts to correct state */
15163 drm_crtc_vblank_reset(&crtc->base);
15164 if (crtc->active) {
15165 struct intel_plane *plane;
15167 drm_crtc_vblank_on(&crtc->base);
15169 /* Disable everything but the primary plane */
15170 for_each_intel_plane_on_crtc(dev, crtc, plane) {
15171 if (plane->base.type == DRM_PLANE_TYPE_PRIMARY)
15174 trace_intel_disable_plane(&plane->base, crtc);
15175 plane->disable_plane(&plane->base, &crtc->base);
15179 /* We need to sanitize the plane -> pipe mapping first because this will
15180 * disable the crtc (and hence change the state) if it is wrong. Note
15181 * that gen4+ has a fixed plane -> pipe mapping. */
15182 if (INTEL_GEN(dev_priv) < 4 && !intel_check_plane_mapping(crtc)) {
15185 DRM_DEBUG_KMS("[CRTC:%d:%s] wrong plane connection detected!\n",
15186 crtc->base.base.id, crtc->base.name);
15188 /* Pipe has the wrong plane attached and the plane is active.
15189 * Temporarily change the plane mapping and disable everything
15191 plane = crtc->plane;
15192 crtc->base.primary->state->visible = true;
15193 crtc->plane = !plane;
15194 intel_crtc_disable_noatomic(&crtc->base);
15195 crtc->plane = plane;
15198 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
15199 crtc->pipe == PIPE_A && !crtc->active) {
15200 /* BIOS forgot to enable pipe A, this mostly happens after
15201 * resume. Force-enable the pipe to fix this, the update_dpms
15202 * call below we restore the pipe to the right state, but leave
15203 * the required bits on. */
15204 intel_enable_pipe_a(dev);
15207 /* Adjust the state of the output pipe according to whether we
15208 * have active connectors/encoders. */
15209 if (crtc->active && !intel_crtc_has_encoders(crtc))
15210 intel_crtc_disable_noatomic(&crtc->base);
15212 if (crtc->active || HAS_GMCH_DISPLAY(dev_priv)) {
15214 * We start out with underrun reporting disabled to avoid races.
15215 * For correct bookkeeping mark this on active crtcs.
15217 * Also on gmch platforms we dont have any hardware bits to
15218 * disable the underrun reporting. Which means we need to start
15219 * out with underrun reporting disabled also on inactive pipes,
15220 * since otherwise we'll complain about the garbage we read when
15221 * e.g. coming up after runtime pm.
15223 * No protection against concurrent access is required - at
15224 * worst a fifo underrun happens which also sets this to false.
15226 crtc->cpu_fifo_underrun_disabled = true;
15228 * We track the PCH trancoder underrun reporting state
15229 * within the crtc. With crtc for pipe A housing the underrun
15230 * reporting state for PCH transcoder A, crtc for pipe B housing
15231 * it for PCH transcoder B, etc. LPT-H has only PCH transcoder A,
15232 * and marking underrun reporting as disabled for the non-existing
15233 * PCH transcoders B and C would prevent enabling the south
15234 * error interrupt (see cpt_can_enable_serr_int()).
15236 if (has_pch_trancoder(dev_priv, (enum transcoder)crtc->pipe))
15237 crtc->pch_fifo_underrun_disabled = true;
15241 static void intel_sanitize_encoder(struct intel_encoder *encoder)
15243 struct intel_connector *connector;
15245 /* We need to check both for a crtc link (meaning that the
15246 * encoder is active and trying to read from a pipe) and the
15247 * pipe itself being active. */
15248 bool has_active_crtc = encoder->base.crtc &&
15249 to_intel_crtc(encoder->base.crtc)->active;
15251 connector = intel_encoder_find_connector(encoder);
15252 if (connector && !has_active_crtc) {
15253 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
15254 encoder->base.base.id,
15255 encoder->base.name);
15257 /* Connector is active, but has no active pipe. This is
15258 * fallout from our resume register restoring. Disable
15259 * the encoder manually again. */
15260 if (encoder->base.crtc) {
15261 struct drm_crtc_state *crtc_state = encoder->base.crtc->state;
15263 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
15264 encoder->base.base.id,
15265 encoder->base.name);
15266 encoder->disable(encoder, to_intel_crtc_state(crtc_state), connector->base.state);
15267 if (encoder->post_disable)
15268 encoder->post_disable(encoder, to_intel_crtc_state(crtc_state), connector->base.state);
15270 encoder->base.crtc = NULL;
15272 /* Inconsistent output/port/pipe state happens presumably due to
15273 * a bug in one of the get_hw_state functions. Or someplace else
15274 * in our code, like the register restore mess on resume. Clamp
15275 * things to off as a safer default. */
15277 connector->base.dpms = DRM_MODE_DPMS_OFF;
15278 connector->base.encoder = NULL;
15280 /* Enabled encoders without active connectors will be fixed in
15281 * the crtc fixup. */
15284 void i915_redisable_vga_power_on(struct drm_i915_private *dev_priv)
15286 i915_reg_t vga_reg = i915_vgacntrl_reg(dev_priv);
15288 if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) {
15289 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
15290 i915_disable_vga(dev_priv);
15294 void i915_redisable_vga(struct drm_i915_private *dev_priv)
15296 /* This function can be called both from intel_modeset_setup_hw_state or
15297 * at a very early point in our resume sequence, where the power well
15298 * structures are not yet restored. Since this function is at a very
15299 * paranoid "someone might have enabled VGA while we were not looking"
15300 * level, just check if the power well is enabled instead of trying to
15301 * follow the "don't touch the power well if we don't need it" policy
15302 * the rest of the driver uses. */
15303 if (!intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_VGA))
15306 i915_redisable_vga_power_on(dev_priv);
15308 intel_display_power_put(dev_priv, POWER_DOMAIN_VGA);
15311 static bool primary_get_hw_state(struct intel_plane *plane)
15313 struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
15315 return I915_READ(DSPCNTR(plane->plane)) & DISPLAY_PLANE_ENABLE;
15318 /* FIXME read out full plane state for all planes */
15319 static void readout_plane_state(struct intel_crtc *crtc)
15321 struct intel_plane *primary = to_intel_plane(crtc->base.primary);
15324 visible = crtc->active && primary_get_hw_state(primary);
15326 intel_set_plane_visible(to_intel_crtc_state(crtc->base.state),
15327 to_intel_plane_state(primary->base.state),
15331 static void intel_modeset_readout_hw_state(struct drm_device *dev)
15333 struct drm_i915_private *dev_priv = to_i915(dev);
15335 struct intel_crtc *crtc;
15336 struct intel_encoder *encoder;
15337 struct intel_connector *connector;
15338 struct drm_connector_list_iter conn_iter;
15341 dev_priv->active_crtcs = 0;
15343 for_each_intel_crtc(dev, crtc) {
15344 struct intel_crtc_state *crtc_state =
15345 to_intel_crtc_state(crtc->base.state);
15347 __drm_atomic_helper_crtc_destroy_state(&crtc_state->base);
15348 memset(crtc_state, 0, sizeof(*crtc_state));
15349 crtc_state->base.crtc = &crtc->base;
15351 crtc_state->base.active = crtc_state->base.enable =
15352 dev_priv->display.get_pipe_config(crtc, crtc_state);
15354 crtc->base.enabled = crtc_state->base.enable;
15355 crtc->active = crtc_state->base.active;
15357 if (crtc_state->base.active)
15358 dev_priv->active_crtcs |= 1 << crtc->pipe;
15360 readout_plane_state(crtc);
15362 DRM_DEBUG_KMS("[CRTC:%d:%s] hw state readout: %s\n",
15363 crtc->base.base.id, crtc->base.name,
15364 enableddisabled(crtc_state->base.active));
15367 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
15368 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
15370 pll->on = pll->funcs.get_hw_state(dev_priv, pll,
15371 &pll->state.hw_state);
15372 pll->state.crtc_mask = 0;
15373 for_each_intel_crtc(dev, crtc) {
15374 struct intel_crtc_state *crtc_state =
15375 to_intel_crtc_state(crtc->base.state);
15377 if (crtc_state->base.active &&
15378 crtc_state->shared_dpll == pll)
15379 pll->state.crtc_mask |= 1 << crtc->pipe;
15381 pll->active_mask = pll->state.crtc_mask;
15383 DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n",
15384 pll->name, pll->state.crtc_mask, pll->on);
15387 for_each_intel_encoder(dev, encoder) {
15390 if (encoder->get_hw_state(encoder, &pipe)) {
15391 struct intel_crtc_state *crtc_state;
15393 crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
15394 crtc_state = to_intel_crtc_state(crtc->base.state);
15396 encoder->base.crtc = &crtc->base;
15397 crtc_state->output_types |= 1 << encoder->type;
15398 encoder->get_config(encoder, crtc_state);
15400 encoder->base.crtc = NULL;
15403 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
15404 encoder->base.base.id, encoder->base.name,
15405 enableddisabled(encoder->base.crtc),
15409 drm_connector_list_iter_begin(dev, &conn_iter);
15410 for_each_intel_connector_iter(connector, &conn_iter) {
15411 if (connector->get_hw_state(connector)) {
15412 connector->base.dpms = DRM_MODE_DPMS_ON;
15414 encoder = connector->encoder;
15415 connector->base.encoder = &encoder->base;
15417 if (encoder->base.crtc &&
15418 encoder->base.crtc->state->active) {
15420 * This has to be done during hardware readout
15421 * because anything calling .crtc_disable may
15422 * rely on the connector_mask being accurate.
15424 encoder->base.crtc->state->connector_mask |=
15425 1 << drm_connector_index(&connector->base);
15426 encoder->base.crtc->state->encoder_mask |=
15427 1 << drm_encoder_index(&encoder->base);
15431 connector->base.dpms = DRM_MODE_DPMS_OFF;
15432 connector->base.encoder = NULL;
15434 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
15435 connector->base.base.id, connector->base.name,
15436 enableddisabled(connector->base.encoder));
15438 drm_connector_list_iter_end(&conn_iter);
15440 for_each_intel_crtc(dev, crtc) {
15441 struct intel_crtc_state *crtc_state =
15442 to_intel_crtc_state(crtc->base.state);
15445 crtc->base.hwmode = crtc_state->base.adjusted_mode;
15447 memset(&crtc->base.mode, 0, sizeof(crtc->base.mode));
15448 if (crtc_state->base.active) {
15449 intel_mode_from_pipe_config(&crtc->base.mode, crtc_state);
15450 intel_mode_from_pipe_config(&crtc_state->base.adjusted_mode, crtc_state);
15451 WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, &crtc->base.mode));
15454 * The initial mode needs to be set in order to keep
15455 * the atomic core happy. It wants a valid mode if the
15456 * crtc's enabled, so we do the above call.
15458 * But we don't set all the derived state fully, hence
15459 * set a flag to indicate that a full recalculation is
15460 * needed on the next commit.
15462 crtc_state->base.mode.private_flags = I915_MODE_FLAG_INHERITED;
15464 intel_crtc_compute_pixel_rate(crtc_state);
15466 if (INTEL_GEN(dev_priv) >= 9 || IS_BROADWELL(dev_priv) ||
15467 IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
15468 pixclk = crtc_state->pixel_rate;
15470 WARN_ON(dev_priv->display.modeset_calc_cdclk);
15472 /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
15473 if (IS_BROADWELL(dev_priv) && crtc_state->ips_enabled)
15474 pixclk = DIV_ROUND_UP(pixclk * 100, 95);
15476 drm_calc_timestamping_constants(&crtc->base, &crtc->base.hwmode);
15477 update_scanline_offset(crtc);
15480 dev_priv->min_pixclk[crtc->pipe] = pixclk;
15482 intel_pipe_config_sanity_check(dev_priv, crtc_state);
15487 get_encoder_power_domains(struct drm_i915_private *dev_priv)
15489 struct intel_encoder *encoder;
15491 for_each_intel_encoder(&dev_priv->drm, encoder) {
15493 enum intel_display_power_domain domain;
15495 if (!encoder->get_power_domains)
15498 get_domains = encoder->get_power_domains(encoder);
15499 for_each_power_domain(domain, get_domains)
15500 intel_display_power_get(dev_priv, domain);
15504 /* Scan out the current hw modeset state,
15505 * and sanitizes it to the current state
15508 intel_modeset_setup_hw_state(struct drm_device *dev)
15510 struct drm_i915_private *dev_priv = to_i915(dev);
15512 struct intel_crtc *crtc;
15513 struct intel_encoder *encoder;
15516 intel_modeset_readout_hw_state(dev);
15518 /* HW state is read out, now we need to sanitize this mess. */
15519 get_encoder_power_domains(dev_priv);
15521 for_each_intel_encoder(dev, encoder) {
15522 intel_sanitize_encoder(encoder);
15525 for_each_pipe(dev_priv, pipe) {
15526 crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
15528 intel_sanitize_crtc(crtc);
15529 intel_dump_pipe_config(crtc, crtc->config,
15530 "[setup_hw_state]");
15533 intel_modeset_update_connector_atomic_state(dev);
15535 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
15536 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
15538 if (!pll->on || pll->active_mask)
15541 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name);
15543 pll->funcs.disable(dev_priv, pll);
15547 if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
15548 vlv_wm_get_hw_state(dev);
15549 vlv_wm_sanitize(dev_priv);
15550 } else if (IS_GEN9(dev_priv)) {
15551 skl_wm_get_hw_state(dev);
15552 } else if (HAS_PCH_SPLIT(dev_priv)) {
15553 ilk_wm_get_hw_state(dev);
15556 for_each_intel_crtc(dev, crtc) {
15559 put_domains = modeset_get_crtc_power_domains(&crtc->base, crtc->config);
15560 if (WARN_ON(put_domains))
15561 modeset_put_power_domains(dev_priv, put_domains);
15563 intel_display_set_init_power(dev_priv, false);
15565 intel_power_domains_verify_state(dev_priv);
15567 intel_fbc_init_pipe_state(dev_priv);
15570 void intel_display_resume(struct drm_device *dev)
15572 struct drm_i915_private *dev_priv = to_i915(dev);
15573 struct drm_atomic_state *state = dev_priv->modeset_restore_state;
15574 struct drm_modeset_acquire_ctx ctx;
15577 dev_priv->modeset_restore_state = NULL;
15579 state->acquire_ctx = &ctx;
15582 * This is a cludge because with real atomic modeset mode_config.mutex
15583 * won't be taken. Unfortunately some probed state like
15584 * audio_codec_enable is still protected by mode_config.mutex, so lock
15587 mutex_lock(&dev->mode_config.mutex);
15588 drm_modeset_acquire_init(&ctx, 0);
15591 ret = drm_modeset_lock_all_ctx(dev, &ctx);
15592 if (ret != -EDEADLK)
15595 drm_modeset_backoff(&ctx);
15599 ret = __intel_display_resume(dev, state, &ctx);
15601 drm_modeset_drop_locks(&ctx);
15602 drm_modeset_acquire_fini(&ctx);
15603 mutex_unlock(&dev->mode_config.mutex);
15606 DRM_ERROR("Restoring old state failed with %i\n", ret);
15608 drm_atomic_state_put(state);
15611 void intel_modeset_gem_init(struct drm_device *dev)
15613 struct drm_i915_private *dev_priv = to_i915(dev);
15615 intel_init_gt_powersave(dev_priv);
15617 intel_setup_overlay(dev_priv);
15620 int intel_connector_register(struct drm_connector *connector)
15622 struct intel_connector *intel_connector = to_intel_connector(connector);
15625 ret = intel_backlight_device_register(intel_connector);
15635 void intel_connector_unregister(struct drm_connector *connector)
15637 struct intel_connector *intel_connector = to_intel_connector(connector);
15639 intel_backlight_device_unregister(intel_connector);
15640 intel_panel_destroy_backlight(connector);
15643 void intel_modeset_cleanup(struct drm_device *dev)
15645 struct drm_i915_private *dev_priv = to_i915(dev);
15647 flush_work(&dev_priv->atomic_helper.free_work);
15648 WARN_ON(!llist_empty(&dev_priv->atomic_helper.free_list));
15650 intel_disable_gt_powersave(dev_priv);
15653 * Interrupts and polling as the first thing to avoid creating havoc.
15654 * Too much stuff here (turning of connectors, ...) would
15655 * experience fancy races otherwise.
15657 intel_irq_uninstall(dev_priv);
15660 * Due to the hpd irq storm handling the hotplug work can re-arm the
15661 * poll handlers. Hence disable polling after hpd handling is shut down.
15663 drm_kms_helper_poll_fini(dev);
15665 intel_unregister_dsm_handler();
15667 intel_fbc_global_disable(dev_priv);
15669 /* flush any delayed tasks or pending work */
15670 flush_scheduled_work();
15672 drm_mode_config_cleanup(dev);
15674 intel_cleanup_overlay(dev_priv);
15676 intel_cleanup_gt_powersave(dev_priv);
15678 intel_teardown_gmbus(dev_priv);
15681 void intel_connector_attach_encoder(struct intel_connector *connector,
15682 struct intel_encoder *encoder)
15684 connector->encoder = encoder;
15685 drm_mode_connector_attach_encoder(&connector->base,
15690 * set vga decode state - true == enable VGA decode
15692 int intel_modeset_vga_set_state(struct drm_i915_private *dev_priv, bool state)
15694 unsigned reg = INTEL_GEN(dev_priv) >= 6 ? SNB_GMCH_CTRL : INTEL_GMCH_CTRL;
15697 if (pci_read_config_word(dev_priv->bridge_dev, reg, &gmch_ctrl)) {
15698 DRM_ERROR("failed to read control word\n");
15702 if (!!(gmch_ctrl & INTEL_GMCH_VGA_DISABLE) == !state)
15706 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
15708 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
15710 if (pci_write_config_word(dev_priv->bridge_dev, reg, gmch_ctrl)) {
15711 DRM_ERROR("failed to write control word\n");
15718 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
15720 struct intel_display_error_state {
15722 u32 power_well_driver;
15724 int num_transcoders;
15726 struct intel_cursor_error_state {
15731 } cursor[I915_MAX_PIPES];
15733 struct intel_pipe_error_state {
15734 bool power_domain_on;
15737 } pipe[I915_MAX_PIPES];
15739 struct intel_plane_error_state {
15747 } plane[I915_MAX_PIPES];
15749 struct intel_transcoder_error_state {
15750 bool power_domain_on;
15751 enum transcoder cpu_transcoder;
15764 struct intel_display_error_state *
15765 intel_display_capture_error_state(struct drm_i915_private *dev_priv)
15767 struct intel_display_error_state *error;
15768 int transcoders[] = {
15776 if (INTEL_INFO(dev_priv)->num_pipes == 0)
15779 error = kzalloc(sizeof(*error), GFP_ATOMIC);
15783 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
15784 error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
15786 for_each_pipe(dev_priv, i) {
15787 error->pipe[i].power_domain_on =
15788 __intel_display_power_is_enabled(dev_priv,
15789 POWER_DOMAIN_PIPE(i));
15790 if (!error->pipe[i].power_domain_on)
15793 error->cursor[i].control = I915_READ(CURCNTR(i));
15794 error->cursor[i].position = I915_READ(CURPOS(i));
15795 error->cursor[i].base = I915_READ(CURBASE(i));
15797 error->plane[i].control = I915_READ(DSPCNTR(i));
15798 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
15799 if (INTEL_GEN(dev_priv) <= 3) {
15800 error->plane[i].size = I915_READ(DSPSIZE(i));
15801 error->plane[i].pos = I915_READ(DSPPOS(i));
15803 if (INTEL_GEN(dev_priv) <= 7 && !IS_HASWELL(dev_priv))
15804 error->plane[i].addr = I915_READ(DSPADDR(i));
15805 if (INTEL_GEN(dev_priv) >= 4) {
15806 error->plane[i].surface = I915_READ(DSPSURF(i));
15807 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
15810 error->pipe[i].source = I915_READ(PIPESRC(i));
15812 if (HAS_GMCH_DISPLAY(dev_priv))
15813 error->pipe[i].stat = I915_READ(PIPESTAT(i));
15816 /* Note: this does not include DSI transcoders. */
15817 error->num_transcoders = INTEL_INFO(dev_priv)->num_pipes;
15818 if (HAS_DDI(dev_priv))
15819 error->num_transcoders++; /* Account for eDP. */
15821 for (i = 0; i < error->num_transcoders; i++) {
15822 enum transcoder cpu_transcoder = transcoders[i];
15824 error->transcoder[i].power_domain_on =
15825 __intel_display_power_is_enabled(dev_priv,
15826 POWER_DOMAIN_TRANSCODER(cpu_transcoder));
15827 if (!error->transcoder[i].power_domain_on)
15830 error->transcoder[i].cpu_transcoder = cpu_transcoder;
15832 error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder));
15833 error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
15834 error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder));
15835 error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder));
15836 error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
15837 error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder));
15838 error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder));
15844 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
15847 intel_display_print_error_state(struct drm_i915_error_state_buf *m,
15848 struct intel_display_error_state *error)
15850 struct drm_i915_private *dev_priv = m->i915;
15856 err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev_priv)->num_pipes);
15857 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
15858 err_printf(m, "PWR_WELL_CTL2: %08x\n",
15859 error->power_well_driver);
15860 for_each_pipe(dev_priv, i) {
15861 err_printf(m, "Pipe [%d]:\n", i);
15862 err_printf(m, " Power: %s\n",
15863 onoff(error->pipe[i].power_domain_on));
15864 err_printf(m, " SRC: %08x\n", error->pipe[i].source);
15865 err_printf(m, " STAT: %08x\n", error->pipe[i].stat);
15867 err_printf(m, "Plane [%d]:\n", i);
15868 err_printf(m, " CNTR: %08x\n", error->plane[i].control);
15869 err_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
15870 if (INTEL_GEN(dev_priv) <= 3) {
15871 err_printf(m, " SIZE: %08x\n", error->plane[i].size);
15872 err_printf(m, " POS: %08x\n", error->plane[i].pos);
15874 if (INTEL_GEN(dev_priv) <= 7 && !IS_HASWELL(dev_priv))
15875 err_printf(m, " ADDR: %08x\n", error->plane[i].addr);
15876 if (INTEL_GEN(dev_priv) >= 4) {
15877 err_printf(m, " SURF: %08x\n", error->plane[i].surface);
15878 err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
15881 err_printf(m, "Cursor [%d]:\n", i);
15882 err_printf(m, " CNTR: %08x\n", error->cursor[i].control);
15883 err_printf(m, " POS: %08x\n", error->cursor[i].position);
15884 err_printf(m, " BASE: %08x\n", error->cursor[i].base);
15887 for (i = 0; i < error->num_transcoders; i++) {
15888 err_printf(m, "CPU transcoder: %s\n",
15889 transcoder_name(error->transcoder[i].cpu_transcoder));
15890 err_printf(m, " Power: %s\n",
15891 onoff(error->transcoder[i].power_domain_on));
15892 err_printf(m, " CONF: %08x\n", error->transcoder[i].conf);
15893 err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal);
15894 err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank);
15895 err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync);
15896 err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal);
15897 err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank);
15898 err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync);