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"
39 #include "i915_trace.h"
40 #include "drm_dp_helper.h"
41 #include "drm_crtc_helper.h"
42 #include <linux/dma_remapping.h>
44 #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))
46 bool intel_pipe_has_type(struct drm_crtc *crtc, int type);
47 static void intel_increase_pllclock(struct drm_crtc *crtc);
48 static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on);
71 #define INTEL_P2_NUM 2
72 typedef struct intel_limit intel_limit_t;
74 intel_range_t dot, vco, n, m, m1, m2, p, p1;
76 bool (* find_pll)(const intel_limit_t *, struct drm_crtc *,
77 int, int, intel_clock_t *, intel_clock_t *);
81 #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */
84 intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
85 int target, int refclk, intel_clock_t *match_clock,
86 intel_clock_t *best_clock);
88 intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
89 int target, int refclk, intel_clock_t *match_clock,
90 intel_clock_t *best_clock);
93 intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc,
94 int target, int refclk, intel_clock_t *match_clock,
95 intel_clock_t *best_clock);
97 intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc,
98 int target, int refclk, intel_clock_t *match_clock,
99 intel_clock_t *best_clock);
102 intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc,
103 int target, int refclk, intel_clock_t *match_clock,
104 intel_clock_t *best_clock);
106 static inline u32 /* units of 100MHz */
107 intel_fdi_link_freq(struct drm_device *dev)
110 struct drm_i915_private *dev_priv = dev->dev_private;
111 return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2;
116 static const intel_limit_t intel_limits_i8xx_dvo = {
117 .dot = { .min = 25000, .max = 350000 },
118 .vco = { .min = 930000, .max = 1400000 },
119 .n = { .min = 3, .max = 16 },
120 .m = { .min = 96, .max = 140 },
121 .m1 = { .min = 18, .max = 26 },
122 .m2 = { .min = 6, .max = 16 },
123 .p = { .min = 4, .max = 128 },
124 .p1 = { .min = 2, .max = 33 },
125 .p2 = { .dot_limit = 165000,
126 .p2_slow = 4, .p2_fast = 2 },
127 .find_pll = intel_find_best_PLL,
130 static const intel_limit_t intel_limits_i8xx_lvds = {
131 .dot = { .min = 25000, .max = 350000 },
132 .vco = { .min = 930000, .max = 1400000 },
133 .n = { .min = 3, .max = 16 },
134 .m = { .min = 96, .max = 140 },
135 .m1 = { .min = 18, .max = 26 },
136 .m2 = { .min = 6, .max = 16 },
137 .p = { .min = 4, .max = 128 },
138 .p1 = { .min = 1, .max = 6 },
139 .p2 = { .dot_limit = 165000,
140 .p2_slow = 14, .p2_fast = 7 },
141 .find_pll = intel_find_best_PLL,
144 static const intel_limit_t intel_limits_i9xx_sdvo = {
145 .dot = { .min = 20000, .max = 400000 },
146 .vco = { .min = 1400000, .max = 2800000 },
147 .n = { .min = 1, .max = 6 },
148 .m = { .min = 70, .max = 120 },
149 .m1 = { .min = 10, .max = 22 },
150 .m2 = { .min = 5, .max = 9 },
151 .p = { .min = 5, .max = 80 },
152 .p1 = { .min = 1, .max = 8 },
153 .p2 = { .dot_limit = 200000,
154 .p2_slow = 10, .p2_fast = 5 },
155 .find_pll = intel_find_best_PLL,
158 static const intel_limit_t intel_limits_i9xx_lvds = {
159 .dot = { .min = 20000, .max = 400000 },
160 .vco = { .min = 1400000, .max = 2800000 },
161 .n = { .min = 1, .max = 6 },
162 .m = { .min = 70, .max = 120 },
163 .m1 = { .min = 10, .max = 22 },
164 .m2 = { .min = 5, .max = 9 },
165 .p = { .min = 7, .max = 98 },
166 .p1 = { .min = 1, .max = 8 },
167 .p2 = { .dot_limit = 112000,
168 .p2_slow = 14, .p2_fast = 7 },
169 .find_pll = intel_find_best_PLL,
173 static const intel_limit_t intel_limits_g4x_sdvo = {
174 .dot = { .min = 25000, .max = 270000 },
175 .vco = { .min = 1750000, .max = 3500000},
176 .n = { .min = 1, .max = 4 },
177 .m = { .min = 104, .max = 138 },
178 .m1 = { .min = 17, .max = 23 },
179 .m2 = { .min = 5, .max = 11 },
180 .p = { .min = 10, .max = 30 },
181 .p1 = { .min = 1, .max = 3},
182 .p2 = { .dot_limit = 270000,
186 .find_pll = intel_g4x_find_best_PLL,
189 static const intel_limit_t intel_limits_g4x_hdmi = {
190 .dot = { .min = 22000, .max = 400000 },
191 .vco = { .min = 1750000, .max = 3500000},
192 .n = { .min = 1, .max = 4 },
193 .m = { .min = 104, .max = 138 },
194 .m1 = { .min = 16, .max = 23 },
195 .m2 = { .min = 5, .max = 11 },
196 .p = { .min = 5, .max = 80 },
197 .p1 = { .min = 1, .max = 8},
198 .p2 = { .dot_limit = 165000,
199 .p2_slow = 10, .p2_fast = 5 },
200 .find_pll = intel_g4x_find_best_PLL,
203 static const intel_limit_t intel_limits_g4x_single_channel_lvds = {
204 .dot = { .min = 20000, .max = 115000 },
205 .vco = { .min = 1750000, .max = 3500000 },
206 .n = { .min = 1, .max = 3 },
207 .m = { .min = 104, .max = 138 },
208 .m1 = { .min = 17, .max = 23 },
209 .m2 = { .min = 5, .max = 11 },
210 .p = { .min = 28, .max = 112 },
211 .p1 = { .min = 2, .max = 8 },
212 .p2 = { .dot_limit = 0,
213 .p2_slow = 14, .p2_fast = 14
215 .find_pll = intel_g4x_find_best_PLL,
218 static const intel_limit_t intel_limits_g4x_dual_channel_lvds = {
219 .dot = { .min = 80000, .max = 224000 },
220 .vco = { .min = 1750000, .max = 3500000 },
221 .n = { .min = 1, .max = 3 },
222 .m = { .min = 104, .max = 138 },
223 .m1 = { .min = 17, .max = 23 },
224 .m2 = { .min = 5, .max = 11 },
225 .p = { .min = 14, .max = 42 },
226 .p1 = { .min = 2, .max = 6 },
227 .p2 = { .dot_limit = 0,
228 .p2_slow = 7, .p2_fast = 7
230 .find_pll = intel_g4x_find_best_PLL,
233 static const intel_limit_t intel_limits_g4x_display_port = {
234 .dot = { .min = 161670, .max = 227000 },
235 .vco = { .min = 1750000, .max = 3500000},
236 .n = { .min = 1, .max = 2 },
237 .m = { .min = 97, .max = 108 },
238 .m1 = { .min = 0x10, .max = 0x12 },
239 .m2 = { .min = 0x05, .max = 0x06 },
240 .p = { .min = 10, .max = 20 },
241 .p1 = { .min = 1, .max = 2},
242 .p2 = { .dot_limit = 0,
243 .p2_slow = 10, .p2_fast = 10 },
244 .find_pll = intel_find_pll_g4x_dp,
247 static const intel_limit_t intel_limits_pineview_sdvo = {
248 .dot = { .min = 20000, .max = 400000},
249 .vco = { .min = 1700000, .max = 3500000 },
250 /* Pineview's Ncounter is a ring counter */
251 .n = { .min = 3, .max = 6 },
252 .m = { .min = 2, .max = 256 },
253 /* Pineview only has one combined m divider, which we treat as m2. */
254 .m1 = { .min = 0, .max = 0 },
255 .m2 = { .min = 0, .max = 254 },
256 .p = { .min = 5, .max = 80 },
257 .p1 = { .min = 1, .max = 8 },
258 .p2 = { .dot_limit = 200000,
259 .p2_slow = 10, .p2_fast = 5 },
260 .find_pll = intel_find_best_PLL,
263 static const intel_limit_t intel_limits_pineview_lvds = {
264 .dot = { .min = 20000, .max = 400000 },
265 .vco = { .min = 1700000, .max = 3500000 },
266 .n = { .min = 3, .max = 6 },
267 .m = { .min = 2, .max = 256 },
268 .m1 = { .min = 0, .max = 0 },
269 .m2 = { .min = 0, .max = 254 },
270 .p = { .min = 7, .max = 112 },
271 .p1 = { .min = 1, .max = 8 },
272 .p2 = { .dot_limit = 112000,
273 .p2_slow = 14, .p2_fast = 14 },
274 .find_pll = intel_find_best_PLL,
277 /* Ironlake / Sandybridge
279 * We calculate clock using (register_value + 2) for N/M1/M2, so here
280 * the range value for them is (actual_value - 2).
282 static const intel_limit_t intel_limits_ironlake_dac = {
283 .dot = { .min = 25000, .max = 350000 },
284 .vco = { .min = 1760000, .max = 3510000 },
285 .n = { .min = 1, .max = 5 },
286 .m = { .min = 79, .max = 127 },
287 .m1 = { .min = 12, .max = 22 },
288 .m2 = { .min = 5, .max = 9 },
289 .p = { .min = 5, .max = 80 },
290 .p1 = { .min = 1, .max = 8 },
291 .p2 = { .dot_limit = 225000,
292 .p2_slow = 10, .p2_fast = 5 },
293 .find_pll = intel_g4x_find_best_PLL,
296 static const intel_limit_t intel_limits_ironlake_single_lvds = {
297 .dot = { .min = 25000, .max = 350000 },
298 .vco = { .min = 1760000, .max = 3510000 },
299 .n = { .min = 1, .max = 3 },
300 .m = { .min = 79, .max = 118 },
301 .m1 = { .min = 12, .max = 22 },
302 .m2 = { .min = 5, .max = 9 },
303 .p = { .min = 28, .max = 112 },
304 .p1 = { .min = 2, .max = 8 },
305 .p2 = { .dot_limit = 225000,
306 .p2_slow = 14, .p2_fast = 14 },
307 .find_pll = intel_g4x_find_best_PLL,
310 static const intel_limit_t intel_limits_ironlake_dual_lvds = {
311 .dot = { .min = 25000, .max = 350000 },
312 .vco = { .min = 1760000, .max = 3510000 },
313 .n = { .min = 1, .max = 3 },
314 .m = { .min = 79, .max = 127 },
315 .m1 = { .min = 12, .max = 22 },
316 .m2 = { .min = 5, .max = 9 },
317 .p = { .min = 14, .max = 56 },
318 .p1 = { .min = 2, .max = 8 },
319 .p2 = { .dot_limit = 225000,
320 .p2_slow = 7, .p2_fast = 7 },
321 .find_pll = intel_g4x_find_best_PLL,
324 /* LVDS 100mhz refclk limits. */
325 static const intel_limit_t intel_limits_ironlake_single_lvds_100m = {
326 .dot = { .min = 25000, .max = 350000 },
327 .vco = { .min = 1760000, .max = 3510000 },
328 .n = { .min = 1, .max = 2 },
329 .m = { .min = 79, .max = 126 },
330 .m1 = { .min = 12, .max = 22 },
331 .m2 = { .min = 5, .max = 9 },
332 .p = { .min = 28, .max = 112 },
333 .p1 = { .min = 2, .max = 8 },
334 .p2 = { .dot_limit = 225000,
335 .p2_slow = 14, .p2_fast = 14 },
336 .find_pll = intel_g4x_find_best_PLL,
339 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = {
340 .dot = { .min = 25000, .max = 350000 },
341 .vco = { .min = 1760000, .max = 3510000 },
342 .n = { .min = 1, .max = 3 },
343 .m = { .min = 79, .max = 126 },
344 .m1 = { .min = 12, .max = 22 },
345 .m2 = { .min = 5, .max = 9 },
346 .p = { .min = 14, .max = 42 },
347 .p1 = { .min = 2, .max = 6 },
348 .p2 = { .dot_limit = 225000,
349 .p2_slow = 7, .p2_fast = 7 },
350 .find_pll = intel_g4x_find_best_PLL,
353 static const intel_limit_t intel_limits_ironlake_display_port = {
354 .dot = { .min = 25000, .max = 350000 },
355 .vco = { .min = 1760000, .max = 3510000},
356 .n = { .min = 1, .max = 2 },
357 .m = { .min = 81, .max = 90 },
358 .m1 = { .min = 12, .max = 22 },
359 .m2 = { .min = 5, .max = 9 },
360 .p = { .min = 10, .max = 20 },
361 .p1 = { .min = 1, .max = 2},
362 .p2 = { .dot_limit = 0,
363 .p2_slow = 10, .p2_fast = 10 },
364 .find_pll = intel_find_pll_ironlake_dp,
367 static const intel_limit_t intel_limits_vlv_dac = {
368 .dot = { .min = 25000, .max = 270000 },
369 .vco = { .min = 4000000, .max = 6000000 },
370 .n = { .min = 1, .max = 7 },
371 .m = { .min = 22, .max = 450 }, /* guess */
372 .m1 = { .min = 2, .max = 3 },
373 .m2 = { .min = 11, .max = 156 },
374 .p = { .min = 10, .max = 30 },
375 .p1 = { .min = 2, .max = 3 },
376 .p2 = { .dot_limit = 270000,
377 .p2_slow = 2, .p2_fast = 20 },
378 .find_pll = intel_vlv_find_best_pll,
381 static const intel_limit_t intel_limits_vlv_hdmi = {
382 .dot = { .min = 20000, .max = 165000 },
383 .vco = { .min = 5994000, .max = 4000000 },
384 .n = { .min = 1, .max = 7 },
385 .m = { .min = 60, .max = 300 }, /* guess */
386 .m1 = { .min = 2, .max = 3 },
387 .m2 = { .min = 11, .max = 156 },
388 .p = { .min = 10, .max = 30 },
389 .p1 = { .min = 2, .max = 3 },
390 .p2 = { .dot_limit = 270000,
391 .p2_slow = 2, .p2_fast = 20 },
392 .find_pll = intel_vlv_find_best_pll,
395 static const intel_limit_t intel_limits_vlv_dp = {
396 .dot = { .min = 162000, .max = 270000 },
397 .vco = { .min = 5994000, .max = 4000000 },
398 .n = { .min = 1, .max = 7 },
399 .m = { .min = 60, .max = 300 }, /* guess */
400 .m1 = { .min = 2, .max = 3 },
401 .m2 = { .min = 11, .max = 156 },
402 .p = { .min = 10, .max = 30 },
403 .p1 = { .min = 2, .max = 3 },
404 .p2 = { .dot_limit = 270000,
405 .p2_slow = 2, .p2_fast = 20 },
406 .find_pll = intel_vlv_find_best_pll,
409 u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg)
414 spin_lock_irqsave(&dev_priv->dpio_lock, flags);
415 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) {
416 DRM_ERROR("DPIO idle wait timed out\n");
420 I915_WRITE(DPIO_REG, reg);
421 I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_READ | DPIO_PORTID |
423 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) {
424 DRM_ERROR("DPIO read wait timed out\n");
427 val = I915_READ(DPIO_DATA);
430 spin_unlock_irqrestore(&dev_priv->dpio_lock, flags);
434 static void intel_dpio_write(struct drm_i915_private *dev_priv, int reg,
439 spin_lock_irqsave(&dev_priv->dpio_lock, flags);
440 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) {
441 DRM_ERROR("DPIO idle wait timed out\n");
445 I915_WRITE(DPIO_DATA, val);
446 I915_WRITE(DPIO_REG, reg);
447 I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_WRITE | DPIO_PORTID |
449 if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100))
450 DRM_ERROR("DPIO write wait timed out\n");
453 spin_unlock_irqrestore(&dev_priv->dpio_lock, flags);
456 static void vlv_init_dpio(struct drm_device *dev)
458 struct drm_i915_private *dev_priv = dev->dev_private;
460 /* Reset the DPIO config */
461 I915_WRITE(DPIO_CTL, 0);
462 POSTING_READ(DPIO_CTL);
463 I915_WRITE(DPIO_CTL, 1);
464 POSTING_READ(DPIO_CTL);
467 static int intel_dual_link_lvds_callback(const struct dmi_system_id *id)
469 DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident);
473 static const struct dmi_system_id intel_dual_link_lvds[] = {
475 .callback = intel_dual_link_lvds_callback,
476 .ident = "Apple MacBook Pro (Core i5/i7 Series)",
478 DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
479 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"),
482 { } /* terminating entry */
485 static bool is_dual_link_lvds(struct drm_i915_private *dev_priv,
490 /* use the module option value if specified */
491 if (i915_lvds_channel_mode > 0)
492 return i915_lvds_channel_mode == 2;
494 if (dmi_check_system(intel_dual_link_lvds))
497 if (dev_priv->lvds_val)
498 val = dev_priv->lvds_val;
500 /* BIOS should set the proper LVDS register value at boot, but
501 * in reality, it doesn't set the value when the lid is closed;
502 * we need to check "the value to be set" in VBT when LVDS
503 * register is uninitialized.
505 val = I915_READ(reg);
506 if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED)))
507 val = dev_priv->bios_lvds_val;
508 dev_priv->lvds_val = val;
510 return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP;
513 static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
516 struct drm_device *dev = crtc->dev;
517 struct drm_i915_private *dev_priv = dev->dev_private;
518 const intel_limit_t *limit;
520 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
521 if (is_dual_link_lvds(dev_priv, PCH_LVDS)) {
522 /* LVDS dual channel */
523 if (refclk == 100000)
524 limit = &intel_limits_ironlake_dual_lvds_100m;
526 limit = &intel_limits_ironlake_dual_lvds;
528 if (refclk == 100000)
529 limit = &intel_limits_ironlake_single_lvds_100m;
531 limit = &intel_limits_ironlake_single_lvds;
533 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
535 limit = &intel_limits_ironlake_display_port;
537 limit = &intel_limits_ironlake_dac;
542 static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
544 struct drm_device *dev = crtc->dev;
545 struct drm_i915_private *dev_priv = dev->dev_private;
546 const intel_limit_t *limit;
548 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
549 if (is_dual_link_lvds(dev_priv, LVDS))
550 /* LVDS with dual channel */
551 limit = &intel_limits_g4x_dual_channel_lvds;
553 /* LVDS with dual channel */
554 limit = &intel_limits_g4x_single_channel_lvds;
555 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
556 intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
557 limit = &intel_limits_g4x_hdmi;
558 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
559 limit = &intel_limits_g4x_sdvo;
560 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
561 limit = &intel_limits_g4x_display_port;
562 } else /* The option is for other outputs */
563 limit = &intel_limits_i9xx_sdvo;
568 static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
570 struct drm_device *dev = crtc->dev;
571 const intel_limit_t *limit;
573 if (HAS_PCH_SPLIT(dev))
574 limit = intel_ironlake_limit(crtc, refclk);
575 else if (IS_G4X(dev)) {
576 limit = intel_g4x_limit(crtc);
577 } else if (IS_PINEVIEW(dev)) {
578 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
579 limit = &intel_limits_pineview_lvds;
581 limit = &intel_limits_pineview_sdvo;
582 } else if (IS_VALLEYVIEW(dev)) {
583 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG))
584 limit = &intel_limits_vlv_dac;
585 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI))
586 limit = &intel_limits_vlv_hdmi;
588 limit = &intel_limits_vlv_dp;
589 } else if (!IS_GEN2(dev)) {
590 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
591 limit = &intel_limits_i9xx_lvds;
593 limit = &intel_limits_i9xx_sdvo;
595 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
596 limit = &intel_limits_i8xx_lvds;
598 limit = &intel_limits_i8xx_dvo;
603 /* m1 is reserved as 0 in Pineview, n is a ring counter */
604 static void pineview_clock(int refclk, intel_clock_t *clock)
606 clock->m = clock->m2 + 2;
607 clock->p = clock->p1 * clock->p2;
608 clock->vco = refclk * clock->m / clock->n;
609 clock->dot = clock->vco / clock->p;
612 static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock)
614 if (IS_PINEVIEW(dev)) {
615 pineview_clock(refclk, clock);
618 clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2);
619 clock->p = clock->p1 * clock->p2;
620 clock->vco = refclk * clock->m / (clock->n + 2);
621 clock->dot = clock->vco / clock->p;
625 * Returns whether any output on the specified pipe is of the specified type
627 bool intel_pipe_has_type(struct drm_crtc *crtc, int type)
629 struct drm_device *dev = crtc->dev;
630 struct intel_encoder *encoder;
632 for_each_encoder_on_crtc(dev, crtc, encoder)
633 if (encoder->type == type)
639 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
641 * Returns whether the given set of divisors are valid for a given refclk with
642 * the given connectors.
645 static bool intel_PLL_is_valid(struct drm_device *dev,
646 const intel_limit_t *limit,
647 const intel_clock_t *clock)
649 if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
650 INTELPllInvalid("p1 out of range\n");
651 if (clock->p < limit->p.min || limit->p.max < clock->p)
652 INTELPllInvalid("p out of range\n");
653 if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
654 INTELPllInvalid("m2 out of range\n");
655 if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
656 INTELPllInvalid("m1 out of range\n");
657 if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev))
658 INTELPllInvalid("m1 <= m2\n");
659 if (clock->m < limit->m.min || limit->m.max < clock->m)
660 INTELPllInvalid("m out of range\n");
661 if (clock->n < limit->n.min || limit->n.max < clock->n)
662 INTELPllInvalid("n out of range\n");
663 if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
664 INTELPllInvalid("vco out of range\n");
665 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
666 * connector, etc., rather than just a single range.
668 if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
669 INTELPllInvalid("dot out of range\n");
675 intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
676 int target, int refclk, intel_clock_t *match_clock,
677 intel_clock_t *best_clock)
680 struct drm_device *dev = crtc->dev;
681 struct drm_i915_private *dev_priv = dev->dev_private;
685 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
686 (I915_READ(LVDS)) != 0) {
688 * For LVDS, if the panel is on, just rely on its current
689 * settings for dual-channel. We haven't figured out how to
690 * reliably set up different single/dual channel state, if we
693 if (is_dual_link_lvds(dev_priv, LVDS))
694 clock.p2 = limit->p2.p2_fast;
696 clock.p2 = limit->p2.p2_slow;
698 if (target < limit->p2.dot_limit)
699 clock.p2 = limit->p2.p2_slow;
701 clock.p2 = limit->p2.p2_fast;
704 memset(best_clock, 0, sizeof(*best_clock));
706 for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
708 for (clock.m2 = limit->m2.min;
709 clock.m2 <= limit->m2.max; clock.m2++) {
710 /* m1 is always 0 in Pineview */
711 if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev))
713 for (clock.n = limit->n.min;
714 clock.n <= limit->n.max; clock.n++) {
715 for (clock.p1 = limit->p1.min;
716 clock.p1 <= limit->p1.max; clock.p1++) {
719 intel_clock(dev, refclk, &clock);
720 if (!intel_PLL_is_valid(dev, limit,
724 clock.p != match_clock->p)
727 this_err = abs(clock.dot - target);
728 if (this_err < err) {
737 return (err != target);
741 intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
742 int target, int refclk, intel_clock_t *match_clock,
743 intel_clock_t *best_clock)
745 struct drm_device *dev = crtc->dev;
746 struct drm_i915_private *dev_priv = dev->dev_private;
750 /* approximately equals target * 0.00585 */
751 int err_most = (target >> 8) + (target >> 9);
754 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
757 if (HAS_PCH_SPLIT(dev))
761 if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) ==
763 clock.p2 = limit->p2.p2_fast;
765 clock.p2 = limit->p2.p2_slow;
767 if (target < limit->p2.dot_limit)
768 clock.p2 = limit->p2.p2_slow;
770 clock.p2 = limit->p2.p2_fast;
773 memset(best_clock, 0, sizeof(*best_clock));
774 max_n = limit->n.max;
775 /* based on hardware requirement, prefer smaller n to precision */
776 for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
777 /* based on hardware requirement, prefere larger m1,m2 */
778 for (clock.m1 = limit->m1.max;
779 clock.m1 >= limit->m1.min; clock.m1--) {
780 for (clock.m2 = limit->m2.max;
781 clock.m2 >= limit->m2.min; clock.m2--) {
782 for (clock.p1 = limit->p1.max;
783 clock.p1 >= limit->p1.min; clock.p1--) {
786 intel_clock(dev, refclk, &clock);
787 if (!intel_PLL_is_valid(dev, limit,
791 clock.p != match_clock->p)
794 this_err = abs(clock.dot - target);
795 if (this_err < err_most) {
809 intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc,
810 int target, int refclk, intel_clock_t *match_clock,
811 intel_clock_t *best_clock)
813 struct drm_device *dev = crtc->dev;
816 if (target < 200000) {
829 intel_clock(dev, refclk, &clock);
830 memcpy(best_clock, &clock, sizeof(intel_clock_t));
834 /* DisplayPort has only two frequencies, 162MHz and 270MHz */
836 intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc,
837 int target, int refclk, intel_clock_t *match_clock,
838 intel_clock_t *best_clock)
841 if (target < 200000) {
854 clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2);
855 clock.p = (clock.p1 * clock.p2);
856 clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p;
858 memcpy(best_clock, &clock, sizeof(intel_clock_t));
862 intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc,
863 int target, int refclk, intel_clock_t *match_clock,
864 intel_clock_t *best_clock)
866 u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2;
868 u32 updrate, minupdate, fracbits, p;
869 unsigned long bestppm, ppm, absppm;
873 dotclk = target * 1000;
876 fastclk = dotclk / (2*100);
880 n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0;
881 bestm1 = bestm2 = bestp1 = bestp2 = 0;
883 /* based on hardware requirement, prefer smaller n to precision */
884 for (n = limit->n.min; n <= ((refclk) / minupdate); n++) {
885 updrate = refclk / n;
886 for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) {
887 for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) {
891 /* based on hardware requirement, prefer bigger m1,m2 values */
892 for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) {
893 m2 = (((2*(fastclk * p * n / m1 )) +
894 refclk) / (2*refclk));
897 if (vco >= limit->vco.min && vco < limit->vco.max) {
898 ppm = 1000000 * ((vco / p) - fastclk) / fastclk;
899 absppm = (ppm > 0) ? ppm : (-ppm);
900 if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) {
904 if (absppm < bestppm - 10) {
921 best_clock->n = bestn;
922 best_clock->m1 = bestm1;
923 best_clock->m2 = bestm2;
924 best_clock->p1 = bestp1;
925 best_clock->p2 = bestp2;
930 static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe)
932 struct drm_i915_private *dev_priv = dev->dev_private;
933 u32 frame, frame_reg = PIPEFRAME(pipe);
935 frame = I915_READ(frame_reg);
937 if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50))
938 DRM_DEBUG_KMS("vblank wait timed out\n");
942 * intel_wait_for_vblank - wait for vblank on a given pipe
944 * @pipe: pipe to wait for
946 * Wait for vblank to occur on a given pipe. Needed for various bits of
949 void intel_wait_for_vblank(struct drm_device *dev, int pipe)
951 struct drm_i915_private *dev_priv = dev->dev_private;
952 int pipestat_reg = PIPESTAT(pipe);
954 if (INTEL_INFO(dev)->gen >= 5) {
955 ironlake_wait_for_vblank(dev, pipe);
959 /* Clear existing vblank status. Note this will clear any other
960 * sticky status fields as well.
962 * This races with i915_driver_irq_handler() with the result
963 * that either function could miss a vblank event. Here it is not
964 * fatal, as we will either wait upon the next vblank interrupt or
965 * timeout. Generally speaking intel_wait_for_vblank() is only
966 * called during modeset at which time the GPU should be idle and
967 * should *not* be performing page flips and thus not waiting on
969 * Currently, the result of us stealing a vblank from the irq
970 * handler is that a single frame will be skipped during swapbuffers.
972 I915_WRITE(pipestat_reg,
973 I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS);
975 /* Wait for vblank interrupt bit to set */
976 if (wait_for(I915_READ(pipestat_reg) &
977 PIPE_VBLANK_INTERRUPT_STATUS,
979 DRM_DEBUG_KMS("vblank wait timed out\n");
983 * intel_wait_for_pipe_off - wait for pipe to turn off
985 * @pipe: pipe to wait for
987 * After disabling a pipe, we can't wait for vblank in the usual way,
988 * spinning on the vblank interrupt status bit, since we won't actually
989 * see an interrupt when the pipe is disabled.
992 * wait for the pipe register state bit to turn off
995 * wait for the display line value to settle (it usually
996 * ends up stopping at the start of the next frame).
999 void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
1001 struct drm_i915_private *dev_priv = dev->dev_private;
1003 if (INTEL_INFO(dev)->gen >= 4) {
1004 int reg = PIPECONF(pipe);
1006 /* Wait for the Pipe State to go off */
1007 if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0,
1009 DRM_DEBUG_KMS("pipe_off wait timed out\n");
1011 u32 last_line, line_mask;
1012 int reg = PIPEDSL(pipe);
1013 unsigned long timeout = jiffies + msecs_to_jiffies(100);
1016 line_mask = DSL_LINEMASK_GEN2;
1018 line_mask = DSL_LINEMASK_GEN3;
1020 /* Wait for the display line to settle */
1022 last_line = I915_READ(reg) & line_mask;
1024 } while (((I915_READ(reg) & line_mask) != last_line) &&
1025 time_after(timeout, jiffies));
1026 if (time_after(jiffies, timeout))
1027 DRM_DEBUG_KMS("pipe_off wait timed out\n");
1031 static const char *state_string(bool enabled)
1033 return enabled ? "on" : "off";
1036 /* Only for pre-ILK configs */
1037 static void assert_pll(struct drm_i915_private *dev_priv,
1038 enum pipe pipe, bool state)
1045 val = I915_READ(reg);
1046 cur_state = !!(val & DPLL_VCO_ENABLE);
1047 WARN(cur_state != state,
1048 "PLL state assertion failure (expected %s, current %s)\n",
1049 state_string(state), state_string(cur_state));
1051 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1052 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1055 static void assert_pch_pll(struct drm_i915_private *dev_priv,
1056 struct intel_pch_pll *pll,
1057 struct intel_crtc *crtc,
1063 if (HAS_PCH_LPT(dev_priv->dev)) {
1064 DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
1069 "asserting PCH PLL %s with no PLL\n", state_string(state)))
1072 val = I915_READ(pll->pll_reg);
1073 cur_state = !!(val & DPLL_VCO_ENABLE);
1074 WARN(cur_state != state,
1075 "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n",
1076 pll->pll_reg, state_string(state), state_string(cur_state), val);
1078 /* Make sure the selected PLL is correctly attached to the transcoder */
1079 if (crtc && HAS_PCH_CPT(dev_priv->dev)) {
1082 pch_dpll = I915_READ(PCH_DPLL_SEL);
1083 cur_state = pll->pll_reg == _PCH_DPLL_B;
1084 if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state,
1085 "PLL[%d] not attached to this transcoder %d: %08x\n",
1086 cur_state, crtc->pipe, pch_dpll)) {
1087 cur_state = !!(val >> (4*crtc->pipe + 3));
1088 WARN(cur_state != state,
1089 "PLL[%d] not %s on this transcoder %d: %08x\n",
1090 pll->pll_reg == _PCH_DPLL_B,
1091 state_string(state),
1097 #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true)
1098 #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false)
1100 static void assert_fdi_tx(struct drm_i915_private *dev_priv,
1101 enum pipe pipe, bool state)
1107 if (IS_HASWELL(dev_priv->dev)) {
1108 /* On Haswell, DDI is used instead of FDI_TX_CTL */
1109 reg = DDI_FUNC_CTL(pipe);
1110 val = I915_READ(reg);
1111 cur_state = !!(val & PIPE_DDI_FUNC_ENABLE);
1113 reg = FDI_TX_CTL(pipe);
1114 val = I915_READ(reg);
1115 cur_state = !!(val & FDI_TX_ENABLE);
1117 WARN(cur_state != state,
1118 "FDI TX state assertion failure (expected %s, current %s)\n",
1119 state_string(state), state_string(cur_state));
1121 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1122 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1124 static void assert_fdi_rx(struct drm_i915_private *dev_priv,
1125 enum pipe pipe, bool state)
1131 if (IS_HASWELL(dev_priv->dev) && pipe > 0) {
1132 DRM_ERROR("Attempting to enable FDI_RX on Haswell pipe > 0\n");
1135 reg = FDI_RX_CTL(pipe);
1136 val = I915_READ(reg);
1137 cur_state = !!(val & FDI_RX_ENABLE);
1139 WARN(cur_state != state,
1140 "FDI RX state assertion failure (expected %s, current %s)\n",
1141 state_string(state), state_string(cur_state));
1143 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1144 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1146 static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
1152 /* ILK FDI PLL is always enabled */
1153 if (dev_priv->info->gen == 5)
1156 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1157 if (IS_HASWELL(dev_priv->dev))
1160 reg = FDI_TX_CTL(pipe);
1161 val = I915_READ(reg);
1162 WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n");
1165 static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv,
1171 if (IS_HASWELL(dev_priv->dev) && pipe > 0) {
1172 DRM_ERROR("Attempting to enable FDI on Haswell with pipe > 0\n");
1175 reg = FDI_RX_CTL(pipe);
1176 val = I915_READ(reg);
1177 WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n");
1180 static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1183 int pp_reg, lvds_reg;
1185 enum pipe panel_pipe = PIPE_A;
1188 if (HAS_PCH_SPLIT(dev_priv->dev)) {
1189 pp_reg = PCH_PP_CONTROL;
1190 lvds_reg = PCH_LVDS;
1192 pp_reg = PP_CONTROL;
1196 val = I915_READ(pp_reg);
1197 if (!(val & PANEL_POWER_ON) ||
1198 ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS))
1201 if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT)
1202 panel_pipe = PIPE_B;
1204 WARN(panel_pipe == pipe && locked,
1205 "panel assertion failure, pipe %c regs locked\n",
1209 void assert_pipe(struct drm_i915_private *dev_priv,
1210 enum pipe pipe, bool state)
1216 /* if we need the pipe A quirk it must be always on */
1217 if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
1220 reg = PIPECONF(pipe);
1221 val = I915_READ(reg);
1222 cur_state = !!(val & PIPECONF_ENABLE);
1223 WARN(cur_state != state,
1224 "pipe %c assertion failure (expected %s, current %s)\n",
1225 pipe_name(pipe), state_string(state), state_string(cur_state));
1228 static void assert_plane(struct drm_i915_private *dev_priv,
1229 enum plane plane, bool state)
1235 reg = DSPCNTR(plane);
1236 val = I915_READ(reg);
1237 cur_state = !!(val & DISPLAY_PLANE_ENABLE);
1238 WARN(cur_state != state,
1239 "plane %c assertion failure (expected %s, current %s)\n",
1240 plane_name(plane), state_string(state), state_string(cur_state));
1243 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1244 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1246 static void assert_planes_disabled(struct drm_i915_private *dev_priv,
1253 /* Planes are fixed to pipes on ILK+ */
1254 if (HAS_PCH_SPLIT(dev_priv->dev)) {
1255 reg = DSPCNTR(pipe);
1256 val = I915_READ(reg);
1257 WARN((val & DISPLAY_PLANE_ENABLE),
1258 "plane %c assertion failure, should be disabled but not\n",
1263 /* Need to check both planes against the pipe */
1264 for (i = 0; i < 2; i++) {
1266 val = I915_READ(reg);
1267 cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >>
1268 DISPPLANE_SEL_PIPE_SHIFT;
1269 WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe,
1270 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1271 plane_name(i), pipe_name(pipe));
1275 static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
1280 if (HAS_PCH_LPT(dev_priv->dev)) {
1281 DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n");
1285 val = I915_READ(PCH_DREF_CONTROL);
1286 enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK |
1287 DREF_SUPERSPREAD_SOURCE_MASK));
1288 WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n");
1291 static void assert_transcoder_disabled(struct drm_i915_private *dev_priv,
1298 reg = TRANSCONF(pipe);
1299 val = I915_READ(reg);
1300 enabled = !!(val & TRANS_ENABLE);
1302 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1306 static bool dp_pipe_enabled(struct drm_i915_private *dev_priv,
1307 enum pipe pipe, u32 port_sel, u32 val)
1309 if ((val & DP_PORT_EN) == 0)
1312 if (HAS_PCH_CPT(dev_priv->dev)) {
1313 u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe);
1314 u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg);
1315 if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel)
1318 if ((val & DP_PIPE_MASK) != (pipe << 30))
1324 static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
1325 enum pipe pipe, u32 val)
1327 if ((val & PORT_ENABLE) == 0)
1330 if (HAS_PCH_CPT(dev_priv->dev)) {
1331 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1334 if ((val & TRANSCODER_MASK) != TRANSCODER(pipe))
1340 static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
1341 enum pipe pipe, u32 val)
1343 if ((val & LVDS_PORT_EN) == 0)
1346 if (HAS_PCH_CPT(dev_priv->dev)) {
1347 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1350 if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
1356 static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
1357 enum pipe pipe, u32 val)
1359 if ((val & ADPA_DAC_ENABLE) == 0)
1361 if (HAS_PCH_CPT(dev_priv->dev)) {
1362 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1365 if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
1371 static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
1372 enum pipe pipe, int reg, u32 port_sel)
1374 u32 val = I915_READ(reg);
1375 WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val),
1376 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1377 reg, pipe_name(pipe));
1379 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT),
1380 "IBX PCH dp port still using transcoder B\n");
1383 static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
1384 enum pipe pipe, int reg)
1386 u32 val = I915_READ(reg);
1387 WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
1388 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1389 reg, pipe_name(pipe));
1391 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT),
1392 "IBX PCH hdmi port still using transcoder B\n");
1395 static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
1401 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B);
1402 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
1403 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
1406 val = I915_READ(reg);
1407 WARN(adpa_pipe_enabled(dev_priv, pipe, val),
1408 "PCH VGA enabled on transcoder %c, should be disabled\n",
1412 val = I915_READ(reg);
1413 WARN(lvds_pipe_enabled(dev_priv, pipe, val),
1414 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1417 assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB);
1418 assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC);
1419 assert_pch_hdmi_disabled(dev_priv, pipe, HDMID);
1423 * intel_enable_pll - enable a PLL
1424 * @dev_priv: i915 private structure
1425 * @pipe: pipe PLL to enable
1427 * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to
1428 * make sure the PLL reg is writable first though, since the panel write
1429 * protect mechanism may be enabled.
1431 * Note! This is for pre-ILK only.
1433 * Unfortunately needed by dvo_ns2501 since the dvo depends on it running.
1435 static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1440 /* No really, not for ILK+ */
1441 BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5);
1443 /* PLL is protected by panel, make sure we can write it */
1444 if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev))
1445 assert_panel_unlocked(dev_priv, pipe);
1448 val = I915_READ(reg);
1449 val |= DPLL_VCO_ENABLE;
1451 /* We do this three times for luck */
1452 I915_WRITE(reg, val);
1454 udelay(150); /* wait for warmup */
1455 I915_WRITE(reg, val);
1457 udelay(150); /* wait for warmup */
1458 I915_WRITE(reg, val);
1460 udelay(150); /* wait for warmup */
1464 * intel_disable_pll - disable a PLL
1465 * @dev_priv: i915 private structure
1466 * @pipe: pipe PLL to disable
1468 * Disable the PLL for @pipe, making sure the pipe is off first.
1470 * Note! This is for pre-ILK only.
1472 static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1477 /* Don't disable pipe A or pipe A PLLs if needed */
1478 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1481 /* Make sure the pipe isn't still relying on us */
1482 assert_pipe_disabled(dev_priv, pipe);
1485 val = I915_READ(reg);
1486 val &= ~DPLL_VCO_ENABLE;
1487 I915_WRITE(reg, val);
1493 intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value)
1495 unsigned long flags;
1497 spin_lock_irqsave(&dev_priv->dpio_lock, flags);
1498 if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0,
1500 DRM_ERROR("timeout waiting for SBI to become ready\n");
1504 I915_WRITE(SBI_ADDR,
1506 I915_WRITE(SBI_DATA,
1508 I915_WRITE(SBI_CTL_STAT,
1512 if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0,
1514 DRM_ERROR("timeout waiting for SBI to complete write transaction\n");
1519 spin_unlock_irqrestore(&dev_priv->dpio_lock, flags);
1523 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg)
1525 unsigned long flags;
1528 spin_lock_irqsave(&dev_priv->dpio_lock, flags);
1529 if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0,
1531 DRM_ERROR("timeout waiting for SBI to become ready\n");
1535 I915_WRITE(SBI_ADDR,
1537 I915_WRITE(SBI_CTL_STAT,
1541 if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0,
1543 DRM_ERROR("timeout waiting for SBI to complete read transaction\n");
1547 value = I915_READ(SBI_DATA);
1550 spin_unlock_irqrestore(&dev_priv->dpio_lock, flags);
1555 * intel_enable_pch_pll - enable PCH PLL
1556 * @dev_priv: i915 private structure
1557 * @pipe: pipe PLL to enable
1559 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1560 * drives the transcoder clock.
1562 static void intel_enable_pch_pll(struct intel_crtc *intel_crtc)
1564 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
1565 struct intel_pch_pll *pll;
1569 /* PCH PLLs only available on ILK, SNB and IVB */
1570 BUG_ON(dev_priv->info->gen < 5);
1571 pll = intel_crtc->pch_pll;
1575 if (WARN_ON(pll->refcount == 0))
1578 DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n",
1579 pll->pll_reg, pll->active, pll->on,
1580 intel_crtc->base.base.id);
1582 /* PCH refclock must be enabled first */
1583 assert_pch_refclk_enabled(dev_priv);
1585 if (pll->active++ && pll->on) {
1586 assert_pch_pll_enabled(dev_priv, pll, NULL);
1590 DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg);
1593 val = I915_READ(reg);
1594 val |= DPLL_VCO_ENABLE;
1595 I915_WRITE(reg, val);
1602 static void intel_disable_pch_pll(struct intel_crtc *intel_crtc)
1604 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
1605 struct intel_pch_pll *pll = intel_crtc->pch_pll;
1609 /* PCH only available on ILK+ */
1610 BUG_ON(dev_priv->info->gen < 5);
1614 if (WARN_ON(pll->refcount == 0))
1617 DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n",
1618 pll->pll_reg, pll->active, pll->on,
1619 intel_crtc->base.base.id);
1621 if (WARN_ON(pll->active == 0)) {
1622 assert_pch_pll_disabled(dev_priv, pll, NULL);
1626 if (--pll->active) {
1627 assert_pch_pll_enabled(dev_priv, pll, NULL);
1631 DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg);
1633 /* Make sure transcoder isn't still depending on us */
1634 assert_transcoder_disabled(dev_priv, intel_crtc->pipe);
1637 val = I915_READ(reg);
1638 val &= ~DPLL_VCO_ENABLE;
1639 I915_WRITE(reg, val);
1646 static void intel_enable_transcoder(struct drm_i915_private *dev_priv,
1650 u32 val, pipeconf_val;
1651 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
1653 /* PCH only available on ILK+ */
1654 BUG_ON(dev_priv->info->gen < 5);
1656 /* Make sure PCH DPLL is enabled */
1657 assert_pch_pll_enabled(dev_priv,
1658 to_intel_crtc(crtc)->pch_pll,
1659 to_intel_crtc(crtc));
1661 /* FDI must be feeding us bits for PCH ports */
1662 assert_fdi_tx_enabled(dev_priv, pipe);
1663 assert_fdi_rx_enabled(dev_priv, pipe);
1665 if (IS_HASWELL(dev_priv->dev) && pipe > 0) {
1666 DRM_ERROR("Attempting to enable transcoder on Haswell with pipe > 0\n");
1669 reg = TRANSCONF(pipe);
1670 val = I915_READ(reg);
1671 pipeconf_val = I915_READ(PIPECONF(pipe));
1673 if (HAS_PCH_IBX(dev_priv->dev)) {
1675 * make the BPC in transcoder be consistent with
1676 * that in pipeconf reg.
1678 val &= ~PIPE_BPC_MASK;
1679 val |= pipeconf_val & PIPE_BPC_MASK;
1682 val &= ~TRANS_INTERLACE_MASK;
1683 if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
1684 if (HAS_PCH_IBX(dev_priv->dev) &&
1685 intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO))
1686 val |= TRANS_LEGACY_INTERLACED_ILK;
1688 val |= TRANS_INTERLACED;
1690 val |= TRANS_PROGRESSIVE;
1692 I915_WRITE(reg, val | TRANS_ENABLE);
1693 if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
1694 DRM_ERROR("failed to enable transcoder %d\n", pipe);
1697 static void intel_disable_transcoder(struct drm_i915_private *dev_priv,
1703 /* FDI relies on the transcoder */
1704 assert_fdi_tx_disabled(dev_priv, pipe);
1705 assert_fdi_rx_disabled(dev_priv, pipe);
1707 /* Ports must be off as well */
1708 assert_pch_ports_disabled(dev_priv, pipe);
1710 reg = TRANSCONF(pipe);
1711 val = I915_READ(reg);
1712 val &= ~TRANS_ENABLE;
1713 I915_WRITE(reg, val);
1714 /* wait for PCH transcoder off, transcoder state */
1715 if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
1716 DRM_ERROR("failed to disable transcoder %d\n", pipe);
1720 * intel_enable_pipe - enable a pipe, asserting requirements
1721 * @dev_priv: i915 private structure
1722 * @pipe: pipe to enable
1723 * @pch_port: on ILK+, is this pipe driving a PCH port or not
1725 * Enable @pipe, making sure that various hardware specific requirements
1726 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1728 * @pipe should be %PIPE_A or %PIPE_B.
1730 * Will wait until the pipe is actually running (i.e. first vblank) before
1733 static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
1740 * A pipe without a PLL won't actually be able to drive bits from
1741 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1744 if (!HAS_PCH_SPLIT(dev_priv->dev))
1745 assert_pll_enabled(dev_priv, pipe);
1748 /* if driving the PCH, we need FDI enabled */
1749 assert_fdi_rx_pll_enabled(dev_priv, pipe);
1750 assert_fdi_tx_pll_enabled(dev_priv, pipe);
1752 /* FIXME: assert CPU port conditions for SNB+ */
1755 reg = PIPECONF(pipe);
1756 val = I915_READ(reg);
1757 if (val & PIPECONF_ENABLE)
1760 I915_WRITE(reg, val | PIPECONF_ENABLE);
1761 intel_wait_for_vblank(dev_priv->dev, pipe);
1765 * intel_disable_pipe - disable a pipe, asserting requirements
1766 * @dev_priv: i915 private structure
1767 * @pipe: pipe to disable
1769 * Disable @pipe, making sure that various hardware specific requirements
1770 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1772 * @pipe should be %PIPE_A or %PIPE_B.
1774 * Will wait until the pipe has shut down before returning.
1776 static void intel_disable_pipe(struct drm_i915_private *dev_priv,
1783 * Make sure planes won't keep trying to pump pixels to us,
1784 * or we might hang the display.
1786 assert_planes_disabled(dev_priv, pipe);
1788 /* Don't disable pipe A or pipe A PLLs if needed */
1789 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1792 reg = PIPECONF(pipe);
1793 val = I915_READ(reg);
1794 if ((val & PIPECONF_ENABLE) == 0)
1797 I915_WRITE(reg, val & ~PIPECONF_ENABLE);
1798 intel_wait_for_pipe_off(dev_priv->dev, pipe);
1802 * Plane regs are double buffered, going from enabled->disabled needs a
1803 * trigger in order to latch. The display address reg provides this.
1805 void intel_flush_display_plane(struct drm_i915_private *dev_priv,
1808 I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane)));
1809 I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane)));
1813 * intel_enable_plane - enable a display plane on a given pipe
1814 * @dev_priv: i915 private structure
1815 * @plane: plane to enable
1816 * @pipe: pipe being fed
1818 * Enable @plane on @pipe, making sure that @pipe is running first.
1820 static void intel_enable_plane(struct drm_i915_private *dev_priv,
1821 enum plane plane, enum pipe pipe)
1826 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1827 assert_pipe_enabled(dev_priv, pipe);
1829 reg = DSPCNTR(plane);
1830 val = I915_READ(reg);
1831 if (val & DISPLAY_PLANE_ENABLE)
1834 I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
1835 intel_flush_display_plane(dev_priv, plane);
1836 intel_wait_for_vblank(dev_priv->dev, pipe);
1840 * intel_disable_plane - disable a display plane
1841 * @dev_priv: i915 private structure
1842 * @plane: plane to disable
1843 * @pipe: pipe consuming the data
1845 * Disable @plane; should be an independent operation.
1847 static void intel_disable_plane(struct drm_i915_private *dev_priv,
1848 enum plane plane, enum pipe pipe)
1853 reg = DSPCNTR(plane);
1854 val = I915_READ(reg);
1855 if ((val & DISPLAY_PLANE_ENABLE) == 0)
1858 I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
1859 intel_flush_display_plane(dev_priv, plane);
1860 intel_wait_for_vblank(dev_priv->dev, pipe);
1863 static void disable_pch_dp(struct drm_i915_private *dev_priv,
1864 enum pipe pipe, int reg, u32 port_sel)
1866 u32 val = I915_READ(reg);
1867 if (dp_pipe_enabled(dev_priv, pipe, port_sel, val)) {
1868 DRM_DEBUG_KMS("Disabling pch dp %x on pipe %d\n", reg, pipe);
1869 I915_WRITE(reg, val & ~DP_PORT_EN);
1873 static void disable_pch_hdmi(struct drm_i915_private *dev_priv,
1874 enum pipe pipe, int reg)
1876 u32 val = I915_READ(reg);
1877 if (hdmi_pipe_enabled(dev_priv, pipe, val)) {
1878 DRM_DEBUG_KMS("Disabling pch HDMI %x on pipe %d\n",
1880 I915_WRITE(reg, val & ~PORT_ENABLE);
1884 /* Disable any ports connected to this transcoder */
1885 static void intel_disable_pch_ports(struct drm_i915_private *dev_priv,
1890 val = I915_READ(PCH_PP_CONTROL);
1891 I915_WRITE(PCH_PP_CONTROL, val | PANEL_UNLOCK_REGS);
1893 disable_pch_dp(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B);
1894 disable_pch_dp(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
1895 disable_pch_dp(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
1898 val = I915_READ(reg);
1899 if (adpa_pipe_enabled(dev_priv, pipe, val))
1900 I915_WRITE(reg, val & ~ADPA_DAC_ENABLE);
1903 val = I915_READ(reg);
1904 if (lvds_pipe_enabled(dev_priv, pipe, val)) {
1905 DRM_DEBUG_KMS("disable lvds on pipe %d val 0x%08x\n", pipe, val);
1906 I915_WRITE(reg, val & ~LVDS_PORT_EN);
1911 disable_pch_hdmi(dev_priv, pipe, HDMIB);
1912 disable_pch_hdmi(dev_priv, pipe, HDMIC);
1913 disable_pch_hdmi(dev_priv, pipe, HDMID);
1917 intel_pin_and_fence_fb_obj(struct drm_device *dev,
1918 struct drm_i915_gem_object *obj,
1919 struct intel_ring_buffer *pipelined)
1921 struct drm_i915_private *dev_priv = dev->dev_private;
1925 switch (obj->tiling_mode) {
1926 case I915_TILING_NONE:
1927 if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
1928 alignment = 128 * 1024;
1929 else if (INTEL_INFO(dev)->gen >= 4)
1930 alignment = 4 * 1024;
1932 alignment = 64 * 1024;
1935 /* pin() will align the object as required by fence */
1939 /* FIXME: Is this true? */
1940 DRM_ERROR("Y tiled not allowed for scan out buffers\n");
1946 dev_priv->mm.interruptible = false;
1947 ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
1949 goto err_interruptible;
1951 /* Install a fence for tiled scan-out. Pre-i965 always needs a
1952 * fence, whereas 965+ only requires a fence if using
1953 * framebuffer compression. For simplicity, we always install
1954 * a fence as the cost is not that onerous.
1956 ret = i915_gem_object_get_fence(obj);
1960 i915_gem_object_pin_fence(obj);
1962 dev_priv->mm.interruptible = true;
1966 i915_gem_object_unpin(obj);
1968 dev_priv->mm.interruptible = true;
1972 void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
1974 i915_gem_object_unpin_fence(obj);
1975 i915_gem_object_unpin(obj);
1978 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
1979 * is assumed to be a power-of-two. */
1980 static unsigned long gen4_compute_dspaddr_offset_xtiled(int *x, int *y,
1984 int tile_rows, tiles;
1988 tiles = *x / (512/bpp);
1991 return tile_rows * pitch * 8 + tiles * 4096;
1994 static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
1997 struct drm_device *dev = crtc->dev;
1998 struct drm_i915_private *dev_priv = dev->dev_private;
1999 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2000 struct intel_framebuffer *intel_fb;
2001 struct drm_i915_gem_object *obj;
2002 int plane = intel_crtc->plane;
2003 unsigned long linear_offset;
2012 DRM_ERROR("Can't update plane %d in SAREA\n", plane);
2016 intel_fb = to_intel_framebuffer(fb);
2017 obj = intel_fb->obj;
2019 reg = DSPCNTR(plane);
2020 dspcntr = I915_READ(reg);
2021 /* Mask out pixel format bits in case we change it */
2022 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2023 switch (fb->bits_per_pixel) {
2025 dspcntr |= DISPPLANE_8BPP;
2028 if (fb->depth == 15)
2029 dspcntr |= DISPPLANE_15_16BPP;
2031 dspcntr |= DISPPLANE_16BPP;
2035 dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
2038 DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel);
2041 if (INTEL_INFO(dev)->gen >= 4) {
2042 if (obj->tiling_mode != I915_TILING_NONE)
2043 dspcntr |= DISPPLANE_TILED;
2045 dspcntr &= ~DISPPLANE_TILED;
2048 I915_WRITE(reg, dspcntr);
2050 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2052 if (INTEL_INFO(dev)->gen >= 4) {
2053 intel_crtc->dspaddr_offset =
2054 gen4_compute_dspaddr_offset_xtiled(&x, &y,
2055 fb->bits_per_pixel / 8,
2057 linear_offset -= intel_crtc->dspaddr_offset;
2059 intel_crtc->dspaddr_offset = linear_offset;
2062 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2063 obj->gtt_offset, linear_offset, x, y, fb->pitches[0]);
2064 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2065 if (INTEL_INFO(dev)->gen >= 4) {
2066 I915_MODIFY_DISPBASE(DSPSURF(plane),
2067 obj->gtt_offset + intel_crtc->dspaddr_offset);
2068 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2069 I915_WRITE(DSPLINOFF(plane), linear_offset);
2071 I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset);
2077 static int ironlake_update_plane(struct drm_crtc *crtc,
2078 struct drm_framebuffer *fb, int x, int y)
2080 struct drm_device *dev = crtc->dev;
2081 struct drm_i915_private *dev_priv = dev->dev_private;
2082 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2083 struct intel_framebuffer *intel_fb;
2084 struct drm_i915_gem_object *obj;
2085 int plane = intel_crtc->plane;
2086 unsigned long linear_offset;
2096 DRM_ERROR("Can't update plane %d in SAREA\n", plane);
2100 intel_fb = to_intel_framebuffer(fb);
2101 obj = intel_fb->obj;
2103 reg = DSPCNTR(plane);
2104 dspcntr = I915_READ(reg);
2105 /* Mask out pixel format bits in case we change it */
2106 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2107 switch (fb->bits_per_pixel) {
2109 dspcntr |= DISPPLANE_8BPP;
2112 if (fb->depth != 16)
2115 dspcntr |= DISPPLANE_16BPP;
2119 if (fb->depth == 24)
2120 dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
2121 else if (fb->depth == 30)
2122 dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA;
2127 DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel);
2131 if (obj->tiling_mode != I915_TILING_NONE)
2132 dspcntr |= DISPPLANE_TILED;
2134 dspcntr &= ~DISPPLANE_TILED;
2137 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2139 I915_WRITE(reg, dspcntr);
2141 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2142 intel_crtc->dspaddr_offset =
2143 gen4_compute_dspaddr_offset_xtiled(&x, &y,
2144 fb->bits_per_pixel / 8,
2146 linear_offset -= intel_crtc->dspaddr_offset;
2148 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2149 obj->gtt_offset, linear_offset, x, y, fb->pitches[0]);
2150 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2151 I915_MODIFY_DISPBASE(DSPSURF(plane),
2152 obj->gtt_offset + intel_crtc->dspaddr_offset);
2153 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2154 I915_WRITE(DSPLINOFF(plane), linear_offset);
2160 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2162 intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2163 int x, int y, enum mode_set_atomic state)
2165 struct drm_device *dev = crtc->dev;
2166 struct drm_i915_private *dev_priv = dev->dev_private;
2168 if (dev_priv->display.disable_fbc)
2169 dev_priv->display.disable_fbc(dev);
2170 intel_increase_pllclock(crtc);
2172 return dev_priv->display.update_plane(crtc, fb, x, y);
2176 intel_finish_fb(struct drm_framebuffer *old_fb)
2178 struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
2179 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2180 bool was_interruptible = dev_priv->mm.interruptible;
2183 wait_event(dev_priv->pending_flip_queue,
2184 atomic_read(&dev_priv->mm.wedged) ||
2185 atomic_read(&obj->pending_flip) == 0);
2187 /* Big Hammer, we also need to ensure that any pending
2188 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2189 * current scanout is retired before unpinning the old
2192 * This should only fail upon a hung GPU, in which case we
2193 * can safely continue.
2195 dev_priv->mm.interruptible = false;
2196 ret = i915_gem_object_finish_gpu(obj);
2197 dev_priv->mm.interruptible = was_interruptible;
2203 intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
2204 struct drm_framebuffer *old_fb)
2206 struct drm_device *dev = crtc->dev;
2207 struct drm_i915_private *dev_priv = dev->dev_private;
2208 struct drm_i915_master_private *master_priv;
2209 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2214 DRM_ERROR("No FB bound\n");
2218 if(intel_crtc->plane > dev_priv->num_pipe) {
2219 DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n",
2221 dev_priv->num_pipe);
2225 mutex_lock(&dev->struct_mutex);
2226 ret = intel_pin_and_fence_fb_obj(dev,
2227 to_intel_framebuffer(crtc->fb)->obj,
2230 mutex_unlock(&dev->struct_mutex);
2231 DRM_ERROR("pin & fence failed\n");
2236 intel_finish_fb(old_fb);
2238 ret = dev_priv->display.update_plane(crtc, crtc->fb, x, y);
2240 intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
2241 mutex_unlock(&dev->struct_mutex);
2242 DRM_ERROR("failed to update base address\n");
2247 intel_wait_for_vblank(dev, intel_crtc->pipe);
2248 intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
2251 intel_update_fbc(dev);
2252 mutex_unlock(&dev->struct_mutex);
2254 if (!dev->primary->master)
2257 master_priv = dev->primary->master->driver_priv;
2258 if (!master_priv->sarea_priv)
2261 if (intel_crtc->pipe) {
2262 master_priv->sarea_priv->pipeB_x = x;
2263 master_priv->sarea_priv->pipeB_y = y;
2265 master_priv->sarea_priv->pipeA_x = x;
2266 master_priv->sarea_priv->pipeA_y = y;
2272 static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock)
2274 struct drm_device *dev = crtc->dev;
2275 struct drm_i915_private *dev_priv = dev->dev_private;
2278 DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock);
2279 dpa_ctl = I915_READ(DP_A);
2280 dpa_ctl &= ~DP_PLL_FREQ_MASK;
2282 if (clock < 200000) {
2284 dpa_ctl |= DP_PLL_FREQ_160MHZ;
2285 /* workaround for 160Mhz:
2286 1) program 0x4600c bits 15:0 = 0x8124
2287 2) program 0x46010 bit 0 = 1
2288 3) program 0x46034 bit 24 = 1
2289 4) program 0x64000 bit 14 = 1
2291 temp = I915_READ(0x4600c);
2293 I915_WRITE(0x4600c, temp | 0x8124);
2295 temp = I915_READ(0x46010);
2296 I915_WRITE(0x46010, temp | 1);
2298 temp = I915_READ(0x46034);
2299 I915_WRITE(0x46034, temp | (1 << 24));
2301 dpa_ctl |= DP_PLL_FREQ_270MHZ;
2303 I915_WRITE(DP_A, dpa_ctl);
2309 static void intel_fdi_normal_train(struct drm_crtc *crtc)
2311 struct drm_device *dev = crtc->dev;
2312 struct drm_i915_private *dev_priv = dev->dev_private;
2313 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2314 int pipe = intel_crtc->pipe;
2317 /* enable normal train */
2318 reg = FDI_TX_CTL(pipe);
2319 temp = I915_READ(reg);
2320 if (IS_IVYBRIDGE(dev)) {
2321 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2322 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
2324 temp &= ~FDI_LINK_TRAIN_NONE;
2325 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
2327 I915_WRITE(reg, temp);
2329 reg = FDI_RX_CTL(pipe);
2330 temp = I915_READ(reg);
2331 if (HAS_PCH_CPT(dev)) {
2332 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2333 temp |= FDI_LINK_TRAIN_NORMAL_CPT;
2335 temp &= ~FDI_LINK_TRAIN_NONE;
2336 temp |= FDI_LINK_TRAIN_NONE;
2338 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
2340 /* wait one idle pattern time */
2344 /* IVB wants error correction enabled */
2345 if (IS_IVYBRIDGE(dev))
2346 I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
2347 FDI_FE_ERRC_ENABLE);
2350 static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe)
2352 struct drm_i915_private *dev_priv = dev->dev_private;
2353 u32 flags = I915_READ(SOUTH_CHICKEN1);
2355 flags |= FDI_PHASE_SYNC_OVR(pipe);
2356 I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */
2357 flags |= FDI_PHASE_SYNC_EN(pipe);
2358 I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */
2359 POSTING_READ(SOUTH_CHICKEN1);
2362 /* The FDI link training functions for ILK/Ibexpeak. */
2363 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
2365 struct drm_device *dev = crtc->dev;
2366 struct drm_i915_private *dev_priv = dev->dev_private;
2367 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2368 int pipe = intel_crtc->pipe;
2369 int plane = intel_crtc->plane;
2370 u32 reg, temp, tries;
2372 /* FDI needs bits from pipe & plane first */
2373 assert_pipe_enabled(dev_priv, pipe);
2374 assert_plane_enabled(dev_priv, plane);
2376 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2378 reg = FDI_RX_IMR(pipe);
2379 temp = I915_READ(reg);
2380 temp &= ~FDI_RX_SYMBOL_LOCK;
2381 temp &= ~FDI_RX_BIT_LOCK;
2382 I915_WRITE(reg, temp);
2386 /* enable CPU FDI TX and PCH FDI RX */
2387 reg = FDI_TX_CTL(pipe);
2388 temp = I915_READ(reg);
2390 temp |= (intel_crtc->fdi_lanes - 1) << 19;
2391 temp &= ~FDI_LINK_TRAIN_NONE;
2392 temp |= FDI_LINK_TRAIN_PATTERN_1;
2393 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2395 reg = FDI_RX_CTL(pipe);
2396 temp = I915_READ(reg);
2397 temp &= ~FDI_LINK_TRAIN_NONE;
2398 temp |= FDI_LINK_TRAIN_PATTERN_1;
2399 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2404 /* Ironlake workaround, enable clock pointer after FDI enable*/
2405 if (HAS_PCH_IBX(dev)) {
2406 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2407 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
2408 FDI_RX_PHASE_SYNC_POINTER_EN);
2411 reg = FDI_RX_IIR(pipe);
2412 for (tries = 0; tries < 5; tries++) {
2413 temp = I915_READ(reg);
2414 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2416 if ((temp & FDI_RX_BIT_LOCK)) {
2417 DRM_DEBUG_KMS("FDI train 1 done.\n");
2418 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2423 DRM_ERROR("FDI train 1 fail!\n");
2426 reg = FDI_TX_CTL(pipe);
2427 temp = I915_READ(reg);
2428 temp &= ~FDI_LINK_TRAIN_NONE;
2429 temp |= FDI_LINK_TRAIN_PATTERN_2;
2430 I915_WRITE(reg, temp);
2432 reg = FDI_RX_CTL(pipe);
2433 temp = I915_READ(reg);
2434 temp &= ~FDI_LINK_TRAIN_NONE;
2435 temp |= FDI_LINK_TRAIN_PATTERN_2;
2436 I915_WRITE(reg, temp);
2441 reg = FDI_RX_IIR(pipe);
2442 for (tries = 0; tries < 5; tries++) {
2443 temp = I915_READ(reg);
2444 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2446 if (temp & FDI_RX_SYMBOL_LOCK) {
2447 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2448 DRM_DEBUG_KMS("FDI train 2 done.\n");
2453 DRM_ERROR("FDI train 2 fail!\n");
2455 DRM_DEBUG_KMS("FDI train done\n");
2459 static const int snb_b_fdi_train_param[] = {
2460 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
2461 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
2462 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
2463 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
2466 /* The FDI link training functions for SNB/Cougarpoint. */
2467 static void gen6_fdi_link_train(struct drm_crtc *crtc)
2469 struct drm_device *dev = crtc->dev;
2470 struct drm_i915_private *dev_priv = dev->dev_private;
2471 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2472 int pipe = intel_crtc->pipe;
2473 u32 reg, temp, i, retry;
2475 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2477 reg = FDI_RX_IMR(pipe);
2478 temp = I915_READ(reg);
2479 temp &= ~FDI_RX_SYMBOL_LOCK;
2480 temp &= ~FDI_RX_BIT_LOCK;
2481 I915_WRITE(reg, temp);
2486 /* enable CPU FDI TX and PCH FDI RX */
2487 reg = FDI_TX_CTL(pipe);
2488 temp = I915_READ(reg);
2490 temp |= (intel_crtc->fdi_lanes - 1) << 19;
2491 temp &= ~FDI_LINK_TRAIN_NONE;
2492 temp |= FDI_LINK_TRAIN_PATTERN_1;
2493 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2495 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2496 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2498 reg = FDI_RX_CTL(pipe);
2499 temp = I915_READ(reg);
2500 if (HAS_PCH_CPT(dev)) {
2501 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2502 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2504 temp &= ~FDI_LINK_TRAIN_NONE;
2505 temp |= FDI_LINK_TRAIN_PATTERN_1;
2507 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2512 if (HAS_PCH_CPT(dev))
2513 cpt_phase_pointer_enable(dev, pipe);
2515 for (i = 0; i < 4; i++) {
2516 reg = FDI_TX_CTL(pipe);
2517 temp = I915_READ(reg);
2518 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2519 temp |= snb_b_fdi_train_param[i];
2520 I915_WRITE(reg, temp);
2525 for (retry = 0; retry < 5; retry++) {
2526 reg = FDI_RX_IIR(pipe);
2527 temp = I915_READ(reg);
2528 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2529 if (temp & FDI_RX_BIT_LOCK) {
2530 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2531 DRM_DEBUG_KMS("FDI train 1 done.\n");
2540 DRM_ERROR("FDI train 1 fail!\n");
2543 reg = FDI_TX_CTL(pipe);
2544 temp = I915_READ(reg);
2545 temp &= ~FDI_LINK_TRAIN_NONE;
2546 temp |= FDI_LINK_TRAIN_PATTERN_2;
2548 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2550 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2552 I915_WRITE(reg, temp);
2554 reg = FDI_RX_CTL(pipe);
2555 temp = I915_READ(reg);
2556 if (HAS_PCH_CPT(dev)) {
2557 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2558 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2560 temp &= ~FDI_LINK_TRAIN_NONE;
2561 temp |= FDI_LINK_TRAIN_PATTERN_2;
2563 I915_WRITE(reg, temp);
2568 for (i = 0; i < 4; i++) {
2569 reg = FDI_TX_CTL(pipe);
2570 temp = I915_READ(reg);
2571 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2572 temp |= snb_b_fdi_train_param[i];
2573 I915_WRITE(reg, temp);
2578 for (retry = 0; retry < 5; retry++) {
2579 reg = FDI_RX_IIR(pipe);
2580 temp = I915_READ(reg);
2581 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2582 if (temp & FDI_RX_SYMBOL_LOCK) {
2583 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2584 DRM_DEBUG_KMS("FDI train 2 done.\n");
2593 DRM_ERROR("FDI train 2 fail!\n");
2595 DRM_DEBUG_KMS("FDI train done.\n");
2598 /* Manual link training for Ivy Bridge A0 parts */
2599 static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
2601 struct drm_device *dev = crtc->dev;
2602 struct drm_i915_private *dev_priv = dev->dev_private;
2603 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2604 int pipe = intel_crtc->pipe;
2607 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2609 reg = FDI_RX_IMR(pipe);
2610 temp = I915_READ(reg);
2611 temp &= ~FDI_RX_SYMBOL_LOCK;
2612 temp &= ~FDI_RX_BIT_LOCK;
2613 I915_WRITE(reg, temp);
2618 /* enable CPU FDI TX and PCH FDI RX */
2619 reg = FDI_TX_CTL(pipe);
2620 temp = I915_READ(reg);
2622 temp |= (intel_crtc->fdi_lanes - 1) << 19;
2623 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
2624 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
2625 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2626 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2627 temp |= FDI_COMPOSITE_SYNC;
2628 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2630 reg = FDI_RX_CTL(pipe);
2631 temp = I915_READ(reg);
2632 temp &= ~FDI_LINK_TRAIN_AUTO;
2633 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2634 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2635 temp |= FDI_COMPOSITE_SYNC;
2636 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2641 if (HAS_PCH_CPT(dev))
2642 cpt_phase_pointer_enable(dev, pipe);
2644 for (i = 0; i < 4; i++) {
2645 reg = FDI_TX_CTL(pipe);
2646 temp = I915_READ(reg);
2647 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2648 temp |= snb_b_fdi_train_param[i];
2649 I915_WRITE(reg, temp);
2654 reg = FDI_RX_IIR(pipe);
2655 temp = I915_READ(reg);
2656 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2658 if (temp & FDI_RX_BIT_LOCK ||
2659 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
2660 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2661 DRM_DEBUG_KMS("FDI train 1 done.\n");
2666 DRM_ERROR("FDI train 1 fail!\n");
2669 reg = FDI_TX_CTL(pipe);
2670 temp = I915_READ(reg);
2671 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2672 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
2673 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2674 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2675 I915_WRITE(reg, temp);
2677 reg = FDI_RX_CTL(pipe);
2678 temp = I915_READ(reg);
2679 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2680 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2681 I915_WRITE(reg, temp);
2686 for (i = 0; i < 4; i++) {
2687 reg = FDI_TX_CTL(pipe);
2688 temp = I915_READ(reg);
2689 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2690 temp |= snb_b_fdi_train_param[i];
2691 I915_WRITE(reg, temp);
2696 reg = FDI_RX_IIR(pipe);
2697 temp = I915_READ(reg);
2698 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2700 if (temp & FDI_RX_SYMBOL_LOCK) {
2701 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2702 DRM_DEBUG_KMS("FDI train 2 done.\n");
2707 DRM_ERROR("FDI train 2 fail!\n");
2709 DRM_DEBUG_KMS("FDI train done.\n");
2712 static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
2714 struct drm_device *dev = intel_crtc->base.dev;
2715 struct drm_i915_private *dev_priv = dev->dev_private;
2716 int pipe = intel_crtc->pipe;
2719 /* Write the TU size bits so error detection works */
2720 I915_WRITE(FDI_RX_TUSIZE1(pipe),
2721 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
2723 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2724 reg = FDI_RX_CTL(pipe);
2725 temp = I915_READ(reg);
2726 temp &= ~((0x7 << 19) | (0x7 << 16));
2727 temp |= (intel_crtc->fdi_lanes - 1) << 19;
2728 temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11;
2729 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
2734 /* Switch from Rawclk to PCDclk */
2735 temp = I915_READ(reg);
2736 I915_WRITE(reg, temp | FDI_PCDCLK);
2741 /* On Haswell, the PLL configuration for ports and pipes is handled
2742 * separately, as part of DDI setup */
2743 if (!IS_HASWELL(dev)) {
2744 /* Enable CPU FDI TX PLL, always on for Ironlake */
2745 reg = FDI_TX_CTL(pipe);
2746 temp = I915_READ(reg);
2747 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
2748 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
2756 static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
2758 struct drm_device *dev = intel_crtc->base.dev;
2759 struct drm_i915_private *dev_priv = dev->dev_private;
2760 int pipe = intel_crtc->pipe;
2763 /* Switch from PCDclk to Rawclk */
2764 reg = FDI_RX_CTL(pipe);
2765 temp = I915_READ(reg);
2766 I915_WRITE(reg, temp & ~FDI_PCDCLK);
2768 /* Disable CPU FDI TX PLL */
2769 reg = FDI_TX_CTL(pipe);
2770 temp = I915_READ(reg);
2771 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
2776 reg = FDI_RX_CTL(pipe);
2777 temp = I915_READ(reg);
2778 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
2780 /* Wait for the clocks to turn off. */
2785 static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe)
2787 struct drm_i915_private *dev_priv = dev->dev_private;
2788 u32 flags = I915_READ(SOUTH_CHICKEN1);
2790 flags &= ~(FDI_PHASE_SYNC_EN(pipe));
2791 I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */
2792 flags &= ~(FDI_PHASE_SYNC_OVR(pipe));
2793 I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */
2794 POSTING_READ(SOUTH_CHICKEN1);
2796 static void ironlake_fdi_disable(struct drm_crtc *crtc)
2798 struct drm_device *dev = crtc->dev;
2799 struct drm_i915_private *dev_priv = dev->dev_private;
2800 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2801 int pipe = intel_crtc->pipe;
2804 /* disable CPU FDI tx and PCH FDI rx */
2805 reg = FDI_TX_CTL(pipe);
2806 temp = I915_READ(reg);
2807 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
2810 reg = FDI_RX_CTL(pipe);
2811 temp = I915_READ(reg);
2812 temp &= ~(0x7 << 16);
2813 temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11;
2814 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
2819 /* Ironlake workaround, disable clock pointer after downing FDI */
2820 if (HAS_PCH_IBX(dev)) {
2821 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2822 I915_WRITE(FDI_RX_CHICKEN(pipe),
2823 I915_READ(FDI_RX_CHICKEN(pipe) &
2824 ~FDI_RX_PHASE_SYNC_POINTER_EN));
2825 } else if (HAS_PCH_CPT(dev)) {
2826 cpt_phase_pointer_disable(dev, pipe);
2829 /* still set train pattern 1 */
2830 reg = FDI_TX_CTL(pipe);
2831 temp = I915_READ(reg);
2832 temp &= ~FDI_LINK_TRAIN_NONE;
2833 temp |= FDI_LINK_TRAIN_PATTERN_1;
2834 I915_WRITE(reg, temp);
2836 reg = FDI_RX_CTL(pipe);
2837 temp = I915_READ(reg);
2838 if (HAS_PCH_CPT(dev)) {
2839 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2840 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2842 temp &= ~FDI_LINK_TRAIN_NONE;
2843 temp |= FDI_LINK_TRAIN_PATTERN_1;
2845 /* BPC in FDI rx is consistent with that in PIPECONF */
2846 temp &= ~(0x07 << 16);
2847 temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11;
2848 I915_WRITE(reg, temp);
2854 static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
2856 struct drm_device *dev = crtc->dev;
2858 if (crtc->fb == NULL)
2861 mutex_lock(&dev->struct_mutex);
2862 intel_finish_fb(crtc->fb);
2863 mutex_unlock(&dev->struct_mutex);
2866 static bool intel_crtc_driving_pch(struct drm_crtc *crtc)
2868 struct drm_device *dev = crtc->dev;
2869 struct intel_encoder *intel_encoder;
2872 * If there's a non-PCH eDP on this crtc, it must be DP_A, and that
2873 * must be driven by its own crtc; no sharing is possible.
2875 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
2877 /* On Haswell, LPT PCH handles the VGA connection via FDI, and Haswell
2878 * CPU handles all others */
2879 if (IS_HASWELL(dev)) {
2880 /* It is still unclear how this will work on PPT, so throw up a warning */
2881 WARN_ON(!HAS_PCH_LPT(dev));
2883 if (intel_encoder->type == INTEL_OUTPUT_ANALOG) {
2884 DRM_DEBUG_KMS("Haswell detected DAC encoder, assuming is PCH\n");
2887 DRM_DEBUG_KMS("Haswell detected encoder %d, assuming is CPU\n",
2888 intel_encoder->type);
2893 switch (intel_encoder->type) {
2894 case INTEL_OUTPUT_EDP:
2895 if (!intel_encoder_is_pch_edp(&intel_encoder->base))
2904 /* Program iCLKIP clock to the desired frequency */
2905 static void lpt_program_iclkip(struct drm_crtc *crtc)
2907 struct drm_device *dev = crtc->dev;
2908 struct drm_i915_private *dev_priv = dev->dev_private;
2909 u32 divsel, phaseinc, auxdiv, phasedir = 0;
2912 /* It is necessary to ungate the pixclk gate prior to programming
2913 * the divisors, and gate it back when it is done.
2915 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
2917 /* Disable SSCCTL */
2918 intel_sbi_write(dev_priv, SBI_SSCCTL6,
2919 intel_sbi_read(dev_priv, SBI_SSCCTL6) |
2920 SBI_SSCCTL_DISABLE);
2922 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
2923 if (crtc->mode.clock == 20000) {
2928 /* The iCLK virtual clock root frequency is in MHz,
2929 * but the crtc->mode.clock in in KHz. To get the divisors,
2930 * it is necessary to divide one by another, so we
2931 * convert the virtual clock precision to KHz here for higher
2934 u32 iclk_virtual_root_freq = 172800 * 1000;
2935 u32 iclk_pi_range = 64;
2936 u32 desired_divisor, msb_divisor_value, pi_value;
2938 desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock);
2939 msb_divisor_value = desired_divisor / iclk_pi_range;
2940 pi_value = desired_divisor % iclk_pi_range;
2943 divsel = msb_divisor_value - 2;
2944 phaseinc = pi_value;
2947 /* This should not happen with any sane values */
2948 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
2949 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
2950 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
2951 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
2953 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
2960 /* Program SSCDIVINTPHASE6 */
2961 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6);
2962 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
2963 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
2964 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
2965 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
2966 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
2967 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
2969 intel_sbi_write(dev_priv,
2970 SBI_SSCDIVINTPHASE6,
2973 /* Program SSCAUXDIV */
2974 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6);
2975 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
2976 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
2977 intel_sbi_write(dev_priv,
2982 /* Enable modulator and associated divider */
2983 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6);
2984 temp &= ~SBI_SSCCTL_DISABLE;
2985 intel_sbi_write(dev_priv,
2989 /* Wait for initialization time */
2992 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
2996 * Enable PCH resources required for PCH ports:
2998 * - FDI training & RX/TX
2999 * - update transcoder timings
3000 * - DP transcoding bits
3003 static void ironlake_pch_enable(struct drm_crtc *crtc)
3005 struct drm_device *dev = crtc->dev;
3006 struct drm_i915_private *dev_priv = dev->dev_private;
3007 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3008 int pipe = intel_crtc->pipe;
3011 assert_transcoder_disabled(dev_priv, pipe);
3013 /* For PCH output, training FDI link */
3014 dev_priv->display.fdi_link_train(crtc);
3016 intel_enable_pch_pll(intel_crtc);
3018 if (HAS_PCH_LPT(dev)) {
3019 DRM_DEBUG_KMS("LPT detected: programming iCLKIP\n");
3020 lpt_program_iclkip(crtc);
3021 } else if (HAS_PCH_CPT(dev)) {
3024 temp = I915_READ(PCH_DPLL_SEL);
3028 temp |= TRANSA_DPLL_ENABLE;
3029 sel = TRANSA_DPLLB_SEL;
3032 temp |= TRANSB_DPLL_ENABLE;
3033 sel = TRANSB_DPLLB_SEL;
3036 temp |= TRANSC_DPLL_ENABLE;
3037 sel = TRANSC_DPLLB_SEL;
3040 if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B)
3044 I915_WRITE(PCH_DPLL_SEL, temp);
3047 /* set transcoder timing, panel must allow it */
3048 assert_panel_unlocked(dev_priv, pipe);
3049 I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe)));
3050 I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe)));
3051 I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe)));
3053 I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe)));
3054 I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe)));
3055 I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe)));
3056 I915_WRITE(TRANS_VSYNCSHIFT(pipe), I915_READ(VSYNCSHIFT(pipe)));
3058 if (!IS_HASWELL(dev))
3059 intel_fdi_normal_train(crtc);
3061 /* For PCH DP, enable TRANS_DP_CTL */
3062 if (HAS_PCH_CPT(dev) &&
3063 (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
3064 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
3065 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) >> 5;
3066 reg = TRANS_DP_CTL(pipe);
3067 temp = I915_READ(reg);
3068 temp &= ~(TRANS_DP_PORT_SEL_MASK |
3069 TRANS_DP_SYNC_MASK |
3071 temp |= (TRANS_DP_OUTPUT_ENABLE |
3072 TRANS_DP_ENH_FRAMING);
3073 temp |= bpc << 9; /* same format but at 11:9 */
3075 if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
3076 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
3077 if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
3078 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
3080 switch (intel_trans_dp_port_sel(crtc)) {
3082 temp |= TRANS_DP_PORT_SEL_B;
3085 temp |= TRANS_DP_PORT_SEL_C;
3088 temp |= TRANS_DP_PORT_SEL_D;
3091 DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n");
3092 temp |= TRANS_DP_PORT_SEL_B;
3096 I915_WRITE(reg, temp);
3099 intel_enable_transcoder(dev_priv, pipe);
3102 static void intel_put_pch_pll(struct intel_crtc *intel_crtc)
3104 struct intel_pch_pll *pll = intel_crtc->pch_pll;
3109 if (pll->refcount == 0) {
3110 WARN(1, "bad PCH PLL refcount\n");
3115 intel_crtc->pch_pll = NULL;
3118 static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp)
3120 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
3121 struct intel_pch_pll *pll;
3124 pll = intel_crtc->pch_pll;
3126 DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n",
3127 intel_crtc->base.base.id, pll->pll_reg);
3131 if (HAS_PCH_IBX(dev_priv->dev)) {
3132 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3133 i = intel_crtc->pipe;
3134 pll = &dev_priv->pch_plls[i];
3136 DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n",
3137 intel_crtc->base.base.id, pll->pll_reg);
3142 for (i = 0; i < dev_priv->num_pch_pll; i++) {
3143 pll = &dev_priv->pch_plls[i];
3145 /* Only want to check enabled timings first */
3146 if (pll->refcount == 0)
3149 if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) &&
3150 fp == I915_READ(pll->fp0_reg)) {
3151 DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n",
3152 intel_crtc->base.base.id,
3153 pll->pll_reg, pll->refcount, pll->active);
3159 /* Ok no matching timings, maybe there's a free one? */
3160 for (i = 0; i < dev_priv->num_pch_pll; i++) {
3161 pll = &dev_priv->pch_plls[i];
3162 if (pll->refcount == 0) {
3163 DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n",
3164 intel_crtc->base.base.id, pll->pll_reg);
3172 intel_crtc->pch_pll = pll;
3174 DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i, intel_crtc->pipe);
3175 prepare: /* separate function? */
3176 DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg);
3178 /* Wait for the clocks to stabilize before rewriting the regs */
3179 I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE);
3180 POSTING_READ(pll->pll_reg);
3183 I915_WRITE(pll->fp0_reg, fp);
3184 I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE);
3189 void intel_cpt_verify_modeset(struct drm_device *dev, int pipe)
3191 struct drm_i915_private *dev_priv = dev->dev_private;
3192 int dslreg = PIPEDSL(pipe), tc2reg = TRANS_CHICKEN2(pipe);
3195 temp = I915_READ(dslreg);
3197 if (wait_for(I915_READ(dslreg) != temp, 5)) {
3198 /* Without this, mode sets may fail silently on FDI */
3199 I915_WRITE(tc2reg, TRANS_AUTOTRAIN_GEN_STALL_DIS);
3201 I915_WRITE(tc2reg, 0);
3202 if (wait_for(I915_READ(dslreg) != temp, 5))
3203 DRM_ERROR("mode set failed: pipe %d stuck\n", pipe);
3207 static void ironlake_crtc_enable(struct drm_crtc *crtc)
3209 struct drm_device *dev = crtc->dev;
3210 struct drm_i915_private *dev_priv = dev->dev_private;
3211 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3212 struct intel_encoder *encoder;
3213 int pipe = intel_crtc->pipe;
3214 int plane = intel_crtc->plane;
3218 WARN_ON(!crtc->enabled);
3220 /* XXX: For compatability with the crtc helper code, call the encoder's
3221 * enable function unconditionally for now. */
3222 if (intel_crtc->active)
3225 intel_crtc->active = true;
3226 intel_update_watermarks(dev);
3228 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
3229 temp = I915_READ(PCH_LVDS);
3230 if ((temp & LVDS_PORT_EN) == 0)
3231 I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN);
3234 is_pch_port = intel_crtc_driving_pch(crtc);
3237 ironlake_fdi_pll_enable(intel_crtc);
3239 ironlake_fdi_disable(crtc);
3241 /* Enable panel fitting for LVDS */
3242 if (dev_priv->pch_pf_size &&
3243 (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) {
3244 /* Force use of hard-coded filter coefficients
3245 * as some pre-programmed values are broken,
3248 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
3249 I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos);
3250 I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size);
3254 * On ILK+ LUT must be loaded before the pipe is running but with
3257 intel_crtc_load_lut(crtc);
3259 intel_enable_pipe(dev_priv, pipe, is_pch_port);
3260 intel_enable_plane(dev_priv, plane, pipe);
3263 ironlake_pch_enable(crtc);
3265 mutex_lock(&dev->struct_mutex);
3266 intel_update_fbc(dev);
3267 mutex_unlock(&dev->struct_mutex);
3269 intel_crtc_update_cursor(crtc, true);
3272 for_each_encoder_on_crtc(dev, crtc, encoder)
3273 encoder->enable(encoder);
3275 if (HAS_PCH_CPT(dev))
3276 intel_cpt_verify_modeset(dev, intel_crtc->pipe);
3279 static void ironlake_crtc_disable(struct drm_crtc *crtc)
3281 struct drm_device *dev = crtc->dev;
3282 struct drm_i915_private *dev_priv = dev->dev_private;
3283 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3284 struct intel_encoder *encoder;
3285 int pipe = intel_crtc->pipe;
3286 int plane = intel_crtc->plane;
3289 /* XXX: For compatability with the crtc helper code, call the encoder's
3290 * disable function unconditionally for now. */
3291 for_each_encoder_on_crtc(dev, crtc, encoder)
3292 encoder->disable(encoder);
3294 if (!intel_crtc->active)
3297 intel_crtc_wait_for_pending_flips(crtc);
3298 drm_vblank_off(dev, pipe);
3299 intel_crtc_update_cursor(crtc, false);
3301 intel_disable_plane(dev_priv, plane, pipe);
3303 if (dev_priv->cfb_plane == plane)
3304 intel_disable_fbc(dev);
3306 intel_disable_pipe(dev_priv, pipe);
3309 I915_WRITE(PF_CTL(pipe), 0);
3310 I915_WRITE(PF_WIN_SZ(pipe), 0);
3312 ironlake_fdi_disable(crtc);
3314 /* This is a horrible layering violation; we should be doing this in
3315 * the connector/encoder ->prepare instead, but we don't always have
3316 * enough information there about the config to know whether it will
3317 * actually be necessary or just cause undesired flicker.
3319 intel_disable_pch_ports(dev_priv, pipe);
3321 intel_disable_transcoder(dev_priv, pipe);
3323 if (HAS_PCH_CPT(dev)) {
3324 /* disable TRANS_DP_CTL */
3325 reg = TRANS_DP_CTL(pipe);
3326 temp = I915_READ(reg);
3327 temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK);
3328 temp |= TRANS_DP_PORT_SEL_NONE;
3329 I915_WRITE(reg, temp);
3331 /* disable DPLL_SEL */
3332 temp = I915_READ(PCH_DPLL_SEL);
3335 temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL);
3338 temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
3341 /* C shares PLL A or B */
3342 temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL);
3347 I915_WRITE(PCH_DPLL_SEL, temp);
3350 /* disable PCH DPLL */
3351 intel_disable_pch_pll(intel_crtc);
3353 ironlake_fdi_pll_disable(intel_crtc);
3355 intel_crtc->active = false;
3356 intel_update_watermarks(dev);
3358 mutex_lock(&dev->struct_mutex);
3359 intel_update_fbc(dev);
3360 mutex_unlock(&dev->struct_mutex);
3363 static void ironlake_crtc_off(struct drm_crtc *crtc)
3365 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3366 intel_put_pch_pll(intel_crtc);
3369 static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
3371 if (!enable && intel_crtc->overlay) {
3372 struct drm_device *dev = intel_crtc->base.dev;
3373 struct drm_i915_private *dev_priv = dev->dev_private;
3375 mutex_lock(&dev->struct_mutex);
3376 dev_priv->mm.interruptible = false;
3377 (void) intel_overlay_switch_off(intel_crtc->overlay);
3378 dev_priv->mm.interruptible = true;
3379 mutex_unlock(&dev->struct_mutex);
3382 /* Let userspace switch the overlay on again. In most cases userspace
3383 * has to recompute where to put it anyway.
3387 static void i9xx_crtc_enable(struct drm_crtc *crtc)
3389 struct drm_device *dev = crtc->dev;
3390 struct drm_i915_private *dev_priv = dev->dev_private;
3391 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3392 struct intel_encoder *encoder;
3393 int pipe = intel_crtc->pipe;
3394 int plane = intel_crtc->plane;
3396 WARN_ON(!crtc->enabled);
3398 /* XXX: For compatability with the crtc helper code, call the encoder's
3399 * enable function unconditionally for now. */
3400 if (intel_crtc->active)
3403 intel_crtc->active = true;
3404 intel_update_watermarks(dev);
3406 intel_enable_pll(dev_priv, pipe);
3407 intel_enable_pipe(dev_priv, pipe, false);
3408 intel_enable_plane(dev_priv, plane, pipe);
3410 intel_crtc_load_lut(crtc);
3411 intel_update_fbc(dev);
3413 /* Give the overlay scaler a chance to enable if it's on this pipe */
3414 intel_crtc_dpms_overlay(intel_crtc, true);
3415 intel_crtc_update_cursor(crtc, true);
3418 for_each_encoder_on_crtc(dev, crtc, encoder)
3419 encoder->enable(encoder);
3422 static void i9xx_crtc_disable(struct drm_crtc *crtc)
3424 struct drm_device *dev = crtc->dev;
3425 struct drm_i915_private *dev_priv = dev->dev_private;
3426 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3427 struct intel_encoder *encoder;
3428 int pipe = intel_crtc->pipe;
3429 int plane = intel_crtc->plane;
3431 /* XXX: For compatability with the crtc helper code, call the encoder's
3432 * disable function unconditionally for now. */
3433 for_each_encoder_on_crtc(dev, crtc, encoder)
3434 encoder->disable(encoder);
3436 if (!intel_crtc->active)
3439 /* Give the overlay scaler a chance to disable if it's on this pipe */
3440 intel_crtc_wait_for_pending_flips(crtc);
3441 drm_vblank_off(dev, pipe);
3442 intel_crtc_dpms_overlay(intel_crtc, false);
3443 intel_crtc_update_cursor(crtc, false);
3445 if (dev_priv->cfb_plane == plane)
3446 intel_disable_fbc(dev);
3448 intel_disable_plane(dev_priv, plane, pipe);
3449 intel_disable_pipe(dev_priv, pipe);
3450 intel_disable_pll(dev_priv, pipe);
3452 intel_crtc->active = false;
3453 intel_update_fbc(dev);
3454 intel_update_watermarks(dev);
3457 static void i9xx_crtc_off(struct drm_crtc *crtc)
3462 * Sets the power management mode of the pipe and plane.
3464 void intel_crtc_update_dpms(struct drm_crtc *crtc)
3466 struct drm_device *dev = crtc->dev;
3467 struct drm_i915_private *dev_priv = dev->dev_private;
3468 struct drm_i915_master_private *master_priv;
3469 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3470 struct intel_encoder *intel_encoder;
3471 int pipe = intel_crtc->pipe;
3472 bool enabled, enable = false;
3474 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
3475 enable |= intel_encoder->connectors_active;
3478 dev_priv->display.crtc_enable(crtc);
3480 dev_priv->display.crtc_disable(crtc);
3482 if (!dev->primary->master)
3485 master_priv = dev->primary->master->driver_priv;
3486 if (!master_priv->sarea_priv)
3489 enabled = crtc->enabled && enable;
3493 master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
3494 master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
3497 master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
3498 master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
3501 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
3506 static void intel_crtc_disable(struct drm_crtc *crtc)
3508 struct drm_device *dev = crtc->dev;
3509 struct drm_i915_private *dev_priv = dev->dev_private;
3511 /* crtc->disable is only called when we have no encoders, hence this
3512 * will disable the pipe. */
3513 intel_crtc_update_dpms(crtc);
3514 dev_priv->display.off(crtc);
3516 assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
3517 assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
3520 mutex_lock(&dev->struct_mutex);
3521 intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
3522 mutex_unlock(&dev->struct_mutex);
3526 void intel_encoder_disable(struct drm_encoder *encoder)
3528 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
3530 intel_encoder->disable(intel_encoder);
3533 void intel_encoder_destroy(struct drm_encoder *encoder)
3535 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
3537 drm_encoder_cleanup(encoder);
3538 kfree(intel_encoder);
3541 /* Simple dpms helper for encodres with just one connector, no cloning and only
3542 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
3543 * state of the entire output pipe. */
3544 void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
3546 if (mode == DRM_MODE_DPMS_ON) {
3547 encoder->connectors_active = true;
3549 intel_crtc_update_dpms(encoder->base.crtc);
3551 encoder->connectors_active = false;
3553 intel_crtc_update_dpms(encoder->base.crtc);
3557 /* Cross check the actual hw state with our own modeset state tracking (and it's
3558 * internal consistency). */
3559 void intel_connector_check_state(struct intel_connector *connector)
3561 if (connector->get_hw_state(connector)) {
3562 struct intel_encoder *encoder = connector->encoder;
3563 struct drm_crtc *crtc;
3564 bool encoder_enabled;
3567 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
3568 connector->base.base.id,
3569 drm_get_connector_name(&connector->base));
3571 WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
3572 "wrong connector dpms state\n");
3573 WARN(connector->base.encoder != &encoder->base,
3574 "active connector not linked to encoder\n");
3575 WARN(!encoder->connectors_active,
3576 "encoder->connectors_active not set\n");
3578 encoder_enabled = encoder->get_hw_state(encoder, &pipe);
3579 WARN(!encoder_enabled, "encoder not enabled\n");
3580 if (WARN_ON(!encoder->base.crtc))
3583 crtc = encoder->base.crtc;
3585 WARN(!crtc->enabled, "crtc not enabled\n");
3586 WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
3587 WARN(pipe != to_intel_crtc(crtc)->pipe,
3588 "encoder active on the wrong pipe\n");
3592 /* Even simpler default implementation, if there's really no special case to
3594 void intel_connector_dpms(struct drm_connector *connector, int mode)
3596 struct intel_encoder *encoder = intel_attached_encoder(connector);
3598 /* All the simple cases only support two dpms states. */
3599 if (mode != DRM_MODE_DPMS_ON)
3600 mode = DRM_MODE_DPMS_OFF;
3602 if (mode == connector->dpms)
3605 connector->dpms = mode;
3607 /* Only need to change hw state when actually enabled */
3608 if (encoder->base.crtc)
3609 intel_encoder_dpms(encoder, mode);
3611 encoder->connectors_active = false;
3613 intel_connector_check_state(to_intel_connector(connector));
3616 /* Simple connector->get_hw_state implementation for encoders that support only
3617 * one connector and no cloning and hence the encoder state determines the state
3618 * of the connector. */
3619 bool intel_connector_get_hw_state(struct intel_connector *connector)
3622 struct intel_encoder *encoder = connector->encoder;
3624 return encoder->get_hw_state(encoder, &pipe);
3627 static bool intel_crtc_mode_fixup(struct drm_crtc *crtc,
3628 const struct drm_display_mode *mode,
3629 struct drm_display_mode *adjusted_mode)
3631 struct drm_device *dev = crtc->dev;
3633 if (HAS_PCH_SPLIT(dev)) {
3634 /* FDI link clock is fixed at 2.7G */
3635 if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4)
3639 /* All interlaced capable intel hw wants timings in frames. Note though
3640 * that intel_lvds_mode_fixup does some funny tricks with the crtc
3641 * timings, so we need to be careful not to clobber these.*/
3642 if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET))
3643 drm_mode_set_crtcinfo(adjusted_mode, 0);
3648 static int valleyview_get_display_clock_speed(struct drm_device *dev)
3650 return 400000; /* FIXME */
3653 static int i945_get_display_clock_speed(struct drm_device *dev)
3658 static int i915_get_display_clock_speed(struct drm_device *dev)
3663 static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
3668 static int i915gm_get_display_clock_speed(struct drm_device *dev)
3672 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
3674 if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
3677 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
3678 case GC_DISPLAY_CLOCK_333_MHZ:
3681 case GC_DISPLAY_CLOCK_190_200_MHZ:
3687 static int i865_get_display_clock_speed(struct drm_device *dev)
3692 static int i855_get_display_clock_speed(struct drm_device *dev)
3695 /* Assume that the hardware is in the high speed state. This
3696 * should be the default.
3698 switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
3699 case GC_CLOCK_133_200:
3700 case GC_CLOCK_100_200:
3702 case GC_CLOCK_166_250:
3704 case GC_CLOCK_100_133:
3708 /* Shouldn't happen */
3712 static int i830_get_display_clock_speed(struct drm_device *dev)
3726 fdi_reduce_ratio(u32 *num, u32 *den)
3728 while (*num > 0xffffff || *den > 0xffffff) {
3735 ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock,
3736 int link_clock, struct fdi_m_n *m_n)
3738 m_n->tu = 64; /* default size */
3740 /* BUG_ON(pixel_clock > INT_MAX / 36); */
3741 m_n->gmch_m = bits_per_pixel * pixel_clock;
3742 m_n->gmch_n = link_clock * nlanes * 8;
3743 fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n);
3745 m_n->link_m = pixel_clock;
3746 m_n->link_n = link_clock;
3747 fdi_reduce_ratio(&m_n->link_m, &m_n->link_n);
3750 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
3752 if (i915_panel_use_ssc >= 0)
3753 return i915_panel_use_ssc != 0;
3754 return dev_priv->lvds_use_ssc
3755 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
3759 * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send
3760 * @crtc: CRTC structure
3761 * @mode: requested mode
3763 * A pipe may be connected to one or more outputs. Based on the depth of the
3764 * attached framebuffer, choose a good color depth to use on the pipe.
3766 * If possible, match the pipe depth to the fb depth. In some cases, this
3767 * isn't ideal, because the connected output supports a lesser or restricted
3768 * set of depths. Resolve that here:
3769 * LVDS typically supports only 6bpc, so clamp down in that case
3770 * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc
3771 * Displays may support a restricted set as well, check EDID and clamp as
3773 * DP may want to dither down to 6bpc to fit larger modes
3776 * Dithering requirement (i.e. false if display bpc and pipe bpc match,
3777 * true if they don't match).
3779 static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc,
3780 unsigned int *pipe_bpp,
3781 struct drm_display_mode *mode)
3783 struct drm_device *dev = crtc->dev;
3784 struct drm_i915_private *dev_priv = dev->dev_private;
3785 struct drm_connector *connector;
3786 struct intel_encoder *intel_encoder;
3787 unsigned int display_bpc = UINT_MAX, bpc;
3789 /* Walk the encoders & connectors on this crtc, get min bpc */
3790 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
3792 if (intel_encoder->type == INTEL_OUTPUT_LVDS) {
3793 unsigned int lvds_bpc;
3795 if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) ==
3801 if (lvds_bpc < display_bpc) {
3802 DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc, lvds_bpc);
3803 display_bpc = lvds_bpc;
3808 /* Not one of the known troublemakers, check the EDID */
3809 list_for_each_entry(connector, &dev->mode_config.connector_list,
3811 if (connector->encoder != &intel_encoder->base)
3814 /* Don't use an invalid EDID bpc value */
3815 if (connector->display_info.bpc &&
3816 connector->display_info.bpc < display_bpc) {
3817 DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc, connector->display_info.bpc);
3818 display_bpc = connector->display_info.bpc;
3823 * HDMI is either 12 or 8, so if the display lets 10bpc sneak
3824 * through, clamp it down. (Note: >12bpc will be caught below.)
3826 if (intel_encoder->type == INTEL_OUTPUT_HDMI) {
3827 if (display_bpc > 8 && display_bpc < 12) {
3828 DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n");
3831 DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n");
3837 if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) {
3838 DRM_DEBUG_KMS("Dithering DP to 6bpc\n");
3843 * We could just drive the pipe at the highest bpc all the time and
3844 * enable dithering as needed, but that costs bandwidth. So choose
3845 * the minimum value that expresses the full color range of the fb but
3846 * also stays within the max display bpc discovered above.
3849 switch (crtc->fb->depth) {
3851 bpc = 8; /* since we go through a colormap */
3855 bpc = 6; /* min is 18bpp */
3867 DRM_DEBUG("unsupported depth, assuming 24 bits\n");
3868 bpc = min((unsigned int)8, display_bpc);
3872 display_bpc = min(display_bpc, bpc);
3874 DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n",
3877 *pipe_bpp = display_bpc * 3;
3879 return display_bpc != bpc;
3882 static int vlv_get_refclk(struct drm_crtc *crtc)
3884 struct drm_device *dev = crtc->dev;
3885 struct drm_i915_private *dev_priv = dev->dev_private;
3886 int refclk = 27000; /* for DP & HDMI */
3888 return 100000; /* only one validated so far */
3890 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
3892 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
3893 if (intel_panel_use_ssc(dev_priv))
3897 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
3904 static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
3906 struct drm_device *dev = crtc->dev;
3907 struct drm_i915_private *dev_priv = dev->dev_private;
3910 if (IS_VALLEYVIEW(dev)) {
3911 refclk = vlv_get_refclk(crtc);
3912 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
3913 intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
3914 refclk = dev_priv->lvds_ssc_freq * 1000;
3915 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
3917 } else if (!IS_GEN2(dev)) {
3926 static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode *adjusted_mode,
3927 intel_clock_t *clock)
3929 /* SDVO TV has fixed PLL values depend on its clock range,
3930 this mirrors vbios setting. */
3931 if (adjusted_mode->clock >= 100000
3932 && adjusted_mode->clock < 140500) {
3938 } else if (adjusted_mode->clock >= 140500
3939 && adjusted_mode->clock <= 200000) {
3948 static void i9xx_update_pll_dividers(struct drm_crtc *crtc,
3949 intel_clock_t *clock,
3950 intel_clock_t *reduced_clock)
3952 struct drm_device *dev = crtc->dev;
3953 struct drm_i915_private *dev_priv = dev->dev_private;
3954 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3955 int pipe = intel_crtc->pipe;
3958 if (IS_PINEVIEW(dev)) {
3959 fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2;
3961 fp2 = (1 << reduced_clock->n) << 16 |
3962 reduced_clock->m1 << 8 | reduced_clock->m2;
3964 fp = clock->n << 16 | clock->m1 << 8 | clock->m2;
3966 fp2 = reduced_clock->n << 16 | reduced_clock->m1 << 8 |
3970 I915_WRITE(FP0(pipe), fp);
3972 intel_crtc->lowfreq_avail = false;
3973 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
3974 reduced_clock && i915_powersave) {
3975 I915_WRITE(FP1(pipe), fp2);
3976 intel_crtc->lowfreq_avail = true;
3978 I915_WRITE(FP1(pipe), fp);
3982 static void intel_update_lvds(struct drm_crtc *crtc, intel_clock_t *clock,
3983 struct drm_display_mode *adjusted_mode)
3985 struct drm_device *dev = crtc->dev;
3986 struct drm_i915_private *dev_priv = dev->dev_private;
3987 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3988 int pipe = intel_crtc->pipe;
3991 temp = I915_READ(LVDS);
3992 temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
3994 temp |= LVDS_PIPEB_SELECT;
3996 temp &= ~LVDS_PIPEB_SELECT;
3998 /* set the corresponsding LVDS_BORDER bit */
3999 temp |= dev_priv->lvds_border_bits;
4000 /* Set the B0-B3 data pairs corresponding to whether we're going to
4001 * set the DPLLs for dual-channel mode or not.
4004 temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP;
4006 temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP);
4008 /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
4009 * appropriately here, but we need to look more thoroughly into how
4010 * panels behave in the two modes.
4012 /* set the dithering flag on LVDS as needed */
4013 if (INTEL_INFO(dev)->gen >= 4) {
4014 if (dev_priv->lvds_dither)
4015 temp |= LVDS_ENABLE_DITHER;
4017 temp &= ~LVDS_ENABLE_DITHER;
4019 temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY);
4020 if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
4021 temp |= LVDS_HSYNC_POLARITY;
4022 if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
4023 temp |= LVDS_VSYNC_POLARITY;
4024 I915_WRITE(LVDS, temp);
4027 static void vlv_update_pll(struct drm_crtc *crtc,
4028 struct drm_display_mode *mode,
4029 struct drm_display_mode *adjusted_mode,
4030 intel_clock_t *clock, intel_clock_t *reduced_clock,
4031 int refclk, int num_connectors)
4033 struct drm_device *dev = crtc->dev;
4034 struct drm_i915_private *dev_priv = dev->dev_private;
4035 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4036 int pipe = intel_crtc->pipe;
4037 u32 dpll, mdiv, pdiv;
4038 u32 bestn, bestm1, bestm2, bestp1, bestp2;
4041 is_hdmi = intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI);
4049 /* Enable DPIO clock input */
4050 dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
4051 DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
4052 I915_WRITE(DPLL(pipe), dpll);
4053 POSTING_READ(DPLL(pipe));
4055 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
4056 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
4057 mdiv |= ((bestn << DPIO_N_SHIFT));
4058 mdiv |= (1 << DPIO_POST_DIV_SHIFT);
4059 mdiv |= (1 << DPIO_K_SHIFT);
4060 mdiv |= DPIO_ENABLE_CALIBRATION;
4061 intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
4063 intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), 0x01000000);
4065 pdiv = DPIO_REFSEL_OVERRIDE | (5 << DPIO_PLL_MODESEL_SHIFT) |
4066 (3 << DPIO_BIAS_CURRENT_CTL_SHIFT) | (1<<20) |
4067 (8 << DPIO_DRIVER_CTL_SHIFT) | (5 << DPIO_CLK_BIAS_CTL_SHIFT);
4068 intel_dpio_write(dev_priv, DPIO_REFSFR(pipe), pdiv);
4070 intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), 0x009f0051);
4072 dpll |= DPLL_VCO_ENABLE;
4073 I915_WRITE(DPLL(pipe), dpll);
4074 POSTING_READ(DPLL(pipe));
4075 if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
4076 DRM_ERROR("DPLL %d failed to lock\n", pipe);
4079 u32 temp = intel_mode_get_pixel_multiplier(adjusted_mode);
4082 temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4086 I915_WRITE(DPLL_MD(pipe), temp);
4087 POSTING_READ(DPLL_MD(pipe));
4090 intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x641); /* ??? */
4093 static void i9xx_update_pll(struct drm_crtc *crtc,
4094 struct drm_display_mode *mode,
4095 struct drm_display_mode *adjusted_mode,
4096 intel_clock_t *clock, intel_clock_t *reduced_clock,
4099 struct drm_device *dev = crtc->dev;
4100 struct drm_i915_private *dev_priv = dev->dev_private;
4101 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4102 int pipe = intel_crtc->pipe;
4106 is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) ||
4107 intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI);
4109 dpll = DPLL_VGA_MODE_DIS;
4111 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
4112 dpll |= DPLLB_MODE_LVDS;
4114 dpll |= DPLLB_MODE_DAC_SERIAL;
4116 int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
4117 if (pixel_multiplier > 1) {
4118 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
4119 dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES;
4121 dpll |= DPLL_DVO_HIGH_SPEED;
4123 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT))
4124 dpll |= DPLL_DVO_HIGH_SPEED;
4126 /* compute bitmask from p1 value */
4127 if (IS_PINEVIEW(dev))
4128 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
4130 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4131 if (IS_G4X(dev) && reduced_clock)
4132 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
4134 switch (clock->p2) {
4136 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
4139 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
4142 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
4145 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
4148 if (INTEL_INFO(dev)->gen >= 4)
4149 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
4151 if (is_sdvo && intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT))
4152 dpll |= PLL_REF_INPUT_TVCLKINBC;
4153 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT))
4154 /* XXX: just matching BIOS for now */
4155 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4157 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
4158 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4159 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4161 dpll |= PLL_REF_INPUT_DREFCLK;
4163 dpll |= DPLL_VCO_ENABLE;
4164 I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
4165 POSTING_READ(DPLL(pipe));
4168 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
4169 * This is an exception to the general rule that mode_set doesn't turn
4172 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
4173 intel_update_lvds(crtc, clock, adjusted_mode);
4175 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT))
4176 intel_dp_set_m_n(crtc, mode, adjusted_mode);
4178 I915_WRITE(DPLL(pipe), dpll);
4180 /* Wait for the clocks to stabilize. */
4181 POSTING_READ(DPLL(pipe));
4184 if (INTEL_INFO(dev)->gen >= 4) {
4187 temp = intel_mode_get_pixel_multiplier(adjusted_mode);
4189 temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4193 I915_WRITE(DPLL_MD(pipe), temp);
4195 /* The pixel multiplier can only be updated once the
4196 * DPLL is enabled and the clocks are stable.
4198 * So write it again.
4200 I915_WRITE(DPLL(pipe), dpll);
4204 static void i8xx_update_pll(struct drm_crtc *crtc,
4205 struct drm_display_mode *adjusted_mode,
4206 intel_clock_t *clock,
4209 struct drm_device *dev = crtc->dev;
4210 struct drm_i915_private *dev_priv = dev->dev_private;
4211 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4212 int pipe = intel_crtc->pipe;
4215 dpll = DPLL_VGA_MODE_DIS;
4217 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
4218 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4221 dpll |= PLL_P1_DIVIDE_BY_TWO;
4223 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4225 dpll |= PLL_P2_DIVIDE_BY_4;
4228 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT))
4229 /* XXX: just matching BIOS for now */
4230 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4232 else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
4233 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4234 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4236 dpll |= PLL_REF_INPUT_DREFCLK;
4238 dpll |= DPLL_VCO_ENABLE;
4239 I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
4240 POSTING_READ(DPLL(pipe));
4243 I915_WRITE(DPLL(pipe), dpll);
4245 /* Wait for the clocks to stabilize. */
4246 POSTING_READ(DPLL(pipe));
4249 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
4250 * This is an exception to the general rule that mode_set doesn't turn
4253 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
4254 intel_update_lvds(crtc, clock, adjusted_mode);
4256 /* The pixel multiplier can only be updated once the
4257 * DPLL is enabled and the clocks are stable.
4259 * So write it again.
4261 I915_WRITE(DPLL(pipe), dpll);
4264 static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
4265 struct drm_display_mode *mode,
4266 struct drm_display_mode *adjusted_mode,
4268 struct drm_framebuffer *old_fb)
4270 struct drm_device *dev = crtc->dev;
4271 struct drm_i915_private *dev_priv = dev->dev_private;
4272 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4273 int pipe = intel_crtc->pipe;
4274 int plane = intel_crtc->plane;
4275 int refclk, num_connectors = 0;
4276 intel_clock_t clock, reduced_clock;
4277 u32 dspcntr, pipeconf, vsyncshift;
4278 bool ok, has_reduced_clock = false, is_sdvo = false;
4279 bool is_lvds = false, is_tv = false, is_dp = false;
4280 struct intel_encoder *encoder;
4281 const intel_limit_t *limit;
4284 for_each_encoder_on_crtc(dev, crtc, encoder) {
4285 switch (encoder->type) {
4286 case INTEL_OUTPUT_LVDS:
4289 case INTEL_OUTPUT_SDVO:
4290 case INTEL_OUTPUT_HDMI:
4292 if (encoder->needs_tv_clock)
4295 case INTEL_OUTPUT_TVOUT:
4298 case INTEL_OUTPUT_DISPLAYPORT:
4306 refclk = i9xx_get_refclk(crtc, num_connectors);
4309 * Returns a set of divisors for the desired target clock with the given
4310 * refclk, or FALSE. The returned values represent the clock equation:
4311 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4313 limit = intel_limit(crtc, refclk);
4314 ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL,
4317 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4321 /* Ensure that the cursor is valid for the new mode before changing... */
4322 intel_crtc_update_cursor(crtc, true);
4324 if (is_lvds && dev_priv->lvds_downclock_avail) {
4326 * Ensure we match the reduced clock's P to the target clock.
4327 * If the clocks don't match, we can't switch the display clock
4328 * by using the FP0/FP1. In such case we will disable the LVDS
4329 * downclock feature.
4331 has_reduced_clock = limit->find_pll(limit, crtc,
4332 dev_priv->lvds_downclock,
4338 if (is_sdvo && is_tv)
4339 i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock);
4341 i9xx_update_pll_dividers(crtc, &clock, has_reduced_clock ?
4342 &reduced_clock : NULL);
4345 i8xx_update_pll(crtc, adjusted_mode, &clock, num_connectors);
4346 else if (IS_VALLEYVIEW(dev))
4347 vlv_update_pll(crtc, mode,adjusted_mode, &clock, NULL,
4348 refclk, num_connectors);
4350 i9xx_update_pll(crtc, mode, adjusted_mode, &clock,
4351 has_reduced_clock ? &reduced_clock : NULL,
4354 /* setup pipeconf */
4355 pipeconf = I915_READ(PIPECONF(pipe));
4357 /* Set up the display plane register */
4358 dspcntr = DISPPLANE_GAMMA_ENABLE;
4361 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
4363 dspcntr |= DISPPLANE_SEL_PIPE_B;
4365 if (pipe == 0 && INTEL_INFO(dev)->gen < 4) {
4366 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4369 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4373 dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
4374 pipeconf |= PIPECONF_DOUBLE_WIDE;
4376 pipeconf &= ~PIPECONF_DOUBLE_WIDE;
4379 /* default to 8bpc */
4380 pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN);
4382 if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) {
4383 pipeconf |= PIPECONF_BPP_6 |
4384 PIPECONF_DITHER_EN |
4385 PIPECONF_DITHER_TYPE_SP;
4389 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B');
4390 drm_mode_debug_printmodeline(mode);
4392 if (HAS_PIPE_CXSR(dev)) {
4393 if (intel_crtc->lowfreq_avail) {
4394 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4395 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
4397 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
4398 pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
4402 pipeconf &= ~PIPECONF_INTERLACE_MASK;
4403 if (!IS_GEN2(dev) &&
4404 adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
4405 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
4406 /* the chip adds 2 halflines automatically */
4407 adjusted_mode->crtc_vtotal -= 1;
4408 adjusted_mode->crtc_vblank_end -= 1;
4409 vsyncshift = adjusted_mode->crtc_hsync_start
4410 - adjusted_mode->crtc_htotal/2;
4412 pipeconf |= PIPECONF_PROGRESSIVE;
4417 I915_WRITE(VSYNCSHIFT(pipe), vsyncshift);
4419 I915_WRITE(HTOTAL(pipe),
4420 (adjusted_mode->crtc_hdisplay - 1) |
4421 ((adjusted_mode->crtc_htotal - 1) << 16));
4422 I915_WRITE(HBLANK(pipe),
4423 (adjusted_mode->crtc_hblank_start - 1) |
4424 ((adjusted_mode->crtc_hblank_end - 1) << 16));
4425 I915_WRITE(HSYNC(pipe),
4426 (adjusted_mode->crtc_hsync_start - 1) |
4427 ((adjusted_mode->crtc_hsync_end - 1) << 16));
4429 I915_WRITE(VTOTAL(pipe),
4430 (adjusted_mode->crtc_vdisplay - 1) |
4431 ((adjusted_mode->crtc_vtotal - 1) << 16));
4432 I915_WRITE(VBLANK(pipe),
4433 (adjusted_mode->crtc_vblank_start - 1) |
4434 ((adjusted_mode->crtc_vblank_end - 1) << 16));
4435 I915_WRITE(VSYNC(pipe),
4436 (adjusted_mode->crtc_vsync_start - 1) |
4437 ((adjusted_mode->crtc_vsync_end - 1) << 16));
4439 /* pipesrc and dspsize control the size that is scaled from,
4440 * which should always be the user's requested size.
4442 I915_WRITE(DSPSIZE(plane),
4443 ((mode->vdisplay - 1) << 16) |
4444 (mode->hdisplay - 1));
4445 I915_WRITE(DSPPOS(plane), 0);
4446 I915_WRITE(PIPESRC(pipe),
4447 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
4449 I915_WRITE(PIPECONF(pipe), pipeconf);
4450 POSTING_READ(PIPECONF(pipe));
4451 intel_enable_pipe(dev_priv, pipe, false);
4453 intel_wait_for_vblank(dev, pipe);
4455 I915_WRITE(DSPCNTR(plane), dspcntr);
4456 POSTING_READ(DSPCNTR(plane));
4458 ret = intel_pipe_set_base(crtc, x, y, old_fb);
4460 intel_update_watermarks(dev);
4466 * Initialize reference clocks when the driver loads
4468 void ironlake_init_pch_refclk(struct drm_device *dev)
4470 struct drm_i915_private *dev_priv = dev->dev_private;
4471 struct drm_mode_config *mode_config = &dev->mode_config;
4472 struct intel_encoder *encoder;
4474 bool has_lvds = false;
4475 bool has_cpu_edp = false;
4476 bool has_pch_edp = false;
4477 bool has_panel = false;
4478 bool has_ck505 = false;
4479 bool can_ssc = false;
4481 /* We need to take the global config into account */
4482 list_for_each_entry(encoder, &mode_config->encoder_list,
4484 switch (encoder->type) {
4485 case INTEL_OUTPUT_LVDS:
4489 case INTEL_OUTPUT_EDP:
4491 if (intel_encoder_is_pch_edp(&encoder->base))
4499 if (HAS_PCH_IBX(dev)) {
4500 has_ck505 = dev_priv->display_clock_mode;
4501 can_ssc = has_ck505;
4507 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n",
4508 has_panel, has_lvds, has_pch_edp, has_cpu_edp,
4511 /* Ironlake: try to setup display ref clock before DPLL
4512 * enabling. This is only under driver's control after
4513 * PCH B stepping, previous chipset stepping should be
4514 * ignoring this setting.
4516 temp = I915_READ(PCH_DREF_CONTROL);
4517 /* Always enable nonspread source */
4518 temp &= ~DREF_NONSPREAD_SOURCE_MASK;
4521 temp |= DREF_NONSPREAD_CK505_ENABLE;
4523 temp |= DREF_NONSPREAD_SOURCE_ENABLE;
4526 temp &= ~DREF_SSC_SOURCE_MASK;
4527 temp |= DREF_SSC_SOURCE_ENABLE;
4529 /* SSC must be turned on before enabling the CPU output */
4530 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
4531 DRM_DEBUG_KMS("Using SSC on panel\n");
4532 temp |= DREF_SSC1_ENABLE;
4534 temp &= ~DREF_SSC1_ENABLE;
4536 /* Get SSC going before enabling the outputs */
4537 I915_WRITE(PCH_DREF_CONTROL, temp);
4538 POSTING_READ(PCH_DREF_CONTROL);
4541 temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
4543 /* Enable CPU source on CPU attached eDP */
4545 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
4546 DRM_DEBUG_KMS("Using SSC on eDP\n");
4547 temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
4550 temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
4552 temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
4554 I915_WRITE(PCH_DREF_CONTROL, temp);
4555 POSTING_READ(PCH_DREF_CONTROL);
4558 DRM_DEBUG_KMS("Disabling SSC entirely\n");
4560 temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
4562 /* Turn off CPU output */
4563 temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
4565 I915_WRITE(PCH_DREF_CONTROL, temp);
4566 POSTING_READ(PCH_DREF_CONTROL);
4569 /* Turn off the SSC source */
4570 temp &= ~DREF_SSC_SOURCE_MASK;
4571 temp |= DREF_SSC_SOURCE_DISABLE;
4574 temp &= ~ DREF_SSC1_ENABLE;
4576 I915_WRITE(PCH_DREF_CONTROL, temp);
4577 POSTING_READ(PCH_DREF_CONTROL);
4582 static int ironlake_get_refclk(struct drm_crtc *crtc)
4584 struct drm_device *dev = crtc->dev;
4585 struct drm_i915_private *dev_priv = dev->dev_private;
4586 struct intel_encoder *encoder;
4587 struct intel_encoder *edp_encoder = NULL;
4588 int num_connectors = 0;
4589 bool is_lvds = false;
4591 for_each_encoder_on_crtc(dev, crtc, encoder) {
4592 switch (encoder->type) {
4593 case INTEL_OUTPUT_LVDS:
4596 case INTEL_OUTPUT_EDP:
4597 edp_encoder = encoder;
4603 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
4604 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4605 dev_priv->lvds_ssc_freq);
4606 return dev_priv->lvds_ssc_freq * 1000;
4612 static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
4613 struct drm_display_mode *mode,
4614 struct drm_display_mode *adjusted_mode,
4616 struct drm_framebuffer *old_fb)
4618 struct drm_device *dev = crtc->dev;
4619 struct drm_i915_private *dev_priv = dev->dev_private;
4620 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4621 int pipe = intel_crtc->pipe;
4622 int plane = intel_crtc->plane;
4623 int refclk, num_connectors = 0;
4624 intel_clock_t clock, reduced_clock;
4625 u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf;
4626 bool ok, has_reduced_clock = false, is_sdvo = false;
4627 bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false;
4628 struct intel_encoder *encoder, *edp_encoder = NULL;
4629 const intel_limit_t *limit;
4631 struct fdi_m_n m_n = {0};
4633 int target_clock, pixel_multiplier, lane, link_bw, factor;
4634 unsigned int pipe_bpp;
4636 bool is_cpu_edp = false, is_pch_edp = false;
4638 for_each_encoder_on_crtc(dev, crtc, encoder) {
4639 switch (encoder->type) {
4640 case INTEL_OUTPUT_LVDS:
4643 case INTEL_OUTPUT_SDVO:
4644 case INTEL_OUTPUT_HDMI:
4646 if (encoder->needs_tv_clock)
4649 case INTEL_OUTPUT_TVOUT:
4652 case INTEL_OUTPUT_ANALOG:
4655 case INTEL_OUTPUT_DISPLAYPORT:
4658 case INTEL_OUTPUT_EDP:
4660 if (intel_encoder_is_pch_edp(&encoder->base))
4664 edp_encoder = encoder;
4671 refclk = ironlake_get_refclk(crtc);
4674 * Returns a set of divisors for the desired target clock with the given
4675 * refclk, or FALSE. The returned values represent the clock equation:
4676 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4678 limit = intel_limit(crtc, refclk);
4679 ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL,
4682 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4686 /* Ensure that the cursor is valid for the new mode before changing... */
4687 intel_crtc_update_cursor(crtc, true);
4689 if (is_lvds && dev_priv->lvds_downclock_avail) {
4691 * Ensure we match the reduced clock's P to the target clock.
4692 * If the clocks don't match, we can't switch the display clock
4693 * by using the FP0/FP1. In such case we will disable the LVDS
4694 * downclock feature.
4696 has_reduced_clock = limit->find_pll(limit, crtc,
4697 dev_priv->lvds_downclock,
4703 if (is_sdvo && is_tv)
4704 i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock);
4708 pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
4710 /* CPU eDP doesn't require FDI link, so just set DP M/N
4711 according to current link config */
4713 intel_edp_link_config(edp_encoder, &lane, &link_bw);
4715 /* FDI is a binary signal running at ~2.7GHz, encoding
4716 * each output octet as 10 bits. The actual frequency
4717 * is stored as a divider into a 100MHz clock, and the
4718 * mode pixel clock is stored in units of 1KHz.
4719 * Hence the bw of each lane in terms of the mode signal
4722 link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
4725 /* [e]DP over FDI requires target mode clock instead of link clock. */
4727 target_clock = intel_edp_target_clock(edp_encoder, mode);
4729 target_clock = mode->clock;
4731 target_clock = adjusted_mode->clock;
4733 /* determine panel color depth */
4734 temp = I915_READ(PIPECONF(pipe));
4735 temp &= ~PIPE_BPC_MASK;
4736 dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, mode);
4751 WARN(1, "intel_choose_pipe_bpp returned invalid value %d\n",
4758 intel_crtc->bpp = pipe_bpp;
4759 I915_WRITE(PIPECONF(pipe), temp);
4763 * Account for spread spectrum to avoid
4764 * oversubscribing the link. Max center spread
4765 * is 2.5%; use 5% for safety's sake.
4767 u32 bps = target_clock * intel_crtc->bpp * 21 / 20;
4768 lane = bps / (link_bw * 8) + 1;
4771 intel_crtc->fdi_lanes = lane;
4773 if (pixel_multiplier > 1)
4774 link_bw *= pixel_multiplier;
4775 ironlake_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw,
4778 fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
4779 if (has_reduced_clock)
4780 fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 |
4783 /* Enable autotuning of the PLL clock (if permissible) */
4786 if ((intel_panel_use_ssc(dev_priv) &&
4787 dev_priv->lvds_ssc_freq == 100) ||
4788 (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP)
4790 } else if (is_sdvo && is_tv)
4793 if (clock.m < factor * clock.n)
4799 dpll |= DPLLB_MODE_LVDS;
4801 dpll |= DPLLB_MODE_DAC_SERIAL;
4803 int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
4804 if (pixel_multiplier > 1) {
4805 dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
4807 dpll |= DPLL_DVO_HIGH_SPEED;
4809 if (is_dp && !is_cpu_edp)
4810 dpll |= DPLL_DVO_HIGH_SPEED;
4812 /* compute bitmask from p1 value */
4813 dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4815 dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
4819 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
4822 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
4825 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
4828 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
4832 if (is_sdvo && is_tv)
4833 dpll |= PLL_REF_INPUT_TVCLKINBC;
4835 /* XXX: just matching BIOS for now */
4836 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4838 else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4839 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4841 dpll |= PLL_REF_INPUT_DREFCLK;
4843 /* setup pipeconf */
4844 pipeconf = I915_READ(PIPECONF(pipe));
4846 /* Set up the display plane register */
4847 dspcntr = DISPPLANE_GAMMA_ENABLE;
4849 DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe);
4850 drm_mode_debug_printmodeline(mode);
4852 /* CPU eDP is the only output that doesn't need a PCH PLL of its own on
4853 * pre-Haswell/LPT generation */
4854 if (HAS_PCH_LPT(dev)) {
4855 DRM_DEBUG_KMS("LPT detected: no PLL for pipe %d necessary\n",
4857 } else if (!is_cpu_edp) {
4858 struct intel_pch_pll *pll;
4860 pll = intel_get_pch_pll(intel_crtc, dpll, fp);
4862 DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n",
4867 intel_put_pch_pll(intel_crtc);
4869 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
4870 * This is an exception to the general rule that mode_set doesn't turn
4874 temp = I915_READ(PCH_LVDS);
4875 temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
4876 if (HAS_PCH_CPT(dev)) {
4877 temp &= ~PORT_TRANS_SEL_MASK;
4878 temp |= PORT_TRANS_SEL_CPT(pipe);
4881 temp |= LVDS_PIPEB_SELECT;
4883 temp &= ~LVDS_PIPEB_SELECT;
4886 /* set the corresponsding LVDS_BORDER bit */
4887 temp |= dev_priv->lvds_border_bits;
4888 /* Set the B0-B3 data pairs corresponding to whether we're going to
4889 * set the DPLLs for dual-channel mode or not.
4892 temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP;
4894 temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP);
4896 /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
4897 * appropriately here, but we need to look more thoroughly into how
4898 * panels behave in the two modes.
4900 temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY);
4901 if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
4902 temp |= LVDS_HSYNC_POLARITY;
4903 if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
4904 temp |= LVDS_VSYNC_POLARITY;
4905 I915_WRITE(PCH_LVDS, temp);
4908 pipeconf &= ~PIPECONF_DITHER_EN;
4909 pipeconf &= ~PIPECONF_DITHER_TYPE_MASK;
4910 if ((is_lvds && dev_priv->lvds_dither) || dither) {
4911 pipeconf |= PIPECONF_DITHER_EN;
4912 pipeconf |= PIPECONF_DITHER_TYPE_SP;
4914 if (is_dp && !is_cpu_edp) {
4915 intel_dp_set_m_n(crtc, mode, adjusted_mode);
4917 /* For non-DP output, clear any trans DP clock recovery setting.*/
4918 I915_WRITE(TRANSDATA_M1(pipe), 0);
4919 I915_WRITE(TRANSDATA_N1(pipe), 0);
4920 I915_WRITE(TRANSDPLINK_M1(pipe), 0);
4921 I915_WRITE(TRANSDPLINK_N1(pipe), 0);
4924 if (intel_crtc->pch_pll) {
4925 I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll);
4927 /* Wait for the clocks to stabilize. */
4928 POSTING_READ(intel_crtc->pch_pll->pll_reg);
4931 /* The pixel multiplier can only be updated once the
4932 * DPLL is enabled and the clocks are stable.
4934 * So write it again.
4936 I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll);
4939 intel_crtc->lowfreq_avail = false;
4940 if (intel_crtc->pch_pll) {
4941 if (is_lvds && has_reduced_clock && i915_powersave) {
4942 I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2);
4943 intel_crtc->lowfreq_avail = true;
4945 I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp);
4949 pipeconf &= ~PIPECONF_INTERLACE_MASK;
4950 if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
4951 pipeconf |= PIPECONF_INTERLACED_ILK;
4952 /* the chip adds 2 halflines automatically */
4953 adjusted_mode->crtc_vtotal -= 1;
4954 adjusted_mode->crtc_vblank_end -= 1;
4955 I915_WRITE(VSYNCSHIFT(pipe),
4956 adjusted_mode->crtc_hsync_start
4957 - adjusted_mode->crtc_htotal/2);
4959 pipeconf |= PIPECONF_PROGRESSIVE;
4960 I915_WRITE(VSYNCSHIFT(pipe), 0);
4963 I915_WRITE(HTOTAL(pipe),
4964 (adjusted_mode->crtc_hdisplay - 1) |
4965 ((adjusted_mode->crtc_htotal - 1) << 16));
4966 I915_WRITE(HBLANK(pipe),
4967 (adjusted_mode->crtc_hblank_start - 1) |
4968 ((adjusted_mode->crtc_hblank_end - 1) << 16));
4969 I915_WRITE(HSYNC(pipe),
4970 (adjusted_mode->crtc_hsync_start - 1) |
4971 ((adjusted_mode->crtc_hsync_end - 1) << 16));
4973 I915_WRITE(VTOTAL(pipe),
4974 (adjusted_mode->crtc_vdisplay - 1) |
4975 ((adjusted_mode->crtc_vtotal - 1) << 16));
4976 I915_WRITE(VBLANK(pipe),
4977 (adjusted_mode->crtc_vblank_start - 1) |
4978 ((adjusted_mode->crtc_vblank_end - 1) << 16));
4979 I915_WRITE(VSYNC(pipe),
4980 (adjusted_mode->crtc_vsync_start - 1) |
4981 ((adjusted_mode->crtc_vsync_end - 1) << 16));
4983 /* pipesrc controls the size that is scaled from, which should
4984 * always be the user's requested size.
4986 I915_WRITE(PIPESRC(pipe),
4987 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
4989 I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m);
4990 I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n);
4991 I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m);
4992 I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n);
4995 ironlake_set_pll_edp(crtc, adjusted_mode->clock);
4997 I915_WRITE(PIPECONF(pipe), pipeconf);
4998 POSTING_READ(PIPECONF(pipe));
5000 intel_wait_for_vblank(dev, pipe);
5002 I915_WRITE(DSPCNTR(plane), dspcntr);
5003 POSTING_READ(DSPCNTR(plane));
5005 ret = intel_pipe_set_base(crtc, x, y, old_fb);
5007 intel_update_watermarks(dev);
5009 intel_update_linetime_watermarks(dev, pipe, adjusted_mode);
5014 static int intel_crtc_mode_set(struct drm_crtc *crtc,
5015 struct drm_display_mode *mode,
5016 struct drm_display_mode *adjusted_mode,
5018 struct drm_framebuffer *old_fb)
5020 struct drm_device *dev = crtc->dev;
5021 struct drm_i915_private *dev_priv = dev->dev_private;
5022 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5023 int pipe = intel_crtc->pipe;
5026 drm_vblank_pre_modeset(dev, pipe);
5028 ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode,
5030 drm_vblank_post_modeset(dev, pipe);
5035 static bool intel_eld_uptodate(struct drm_connector *connector,
5036 int reg_eldv, uint32_t bits_eldv,
5037 int reg_elda, uint32_t bits_elda,
5040 struct drm_i915_private *dev_priv = connector->dev->dev_private;
5041 uint8_t *eld = connector->eld;
5044 i = I915_READ(reg_eldv);
5053 i = I915_READ(reg_elda);
5055 I915_WRITE(reg_elda, i);
5057 for (i = 0; i < eld[2]; i++)
5058 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
5064 static void g4x_write_eld(struct drm_connector *connector,
5065 struct drm_crtc *crtc)
5067 struct drm_i915_private *dev_priv = connector->dev->dev_private;
5068 uint8_t *eld = connector->eld;
5073 i = I915_READ(G4X_AUD_VID_DID);
5075 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
5076 eldv = G4X_ELDV_DEVCL_DEVBLC;
5078 eldv = G4X_ELDV_DEVCTG;
5080 if (intel_eld_uptodate(connector,
5081 G4X_AUD_CNTL_ST, eldv,
5082 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
5083 G4X_HDMIW_HDMIEDID))
5086 i = I915_READ(G4X_AUD_CNTL_ST);
5087 i &= ~(eldv | G4X_ELD_ADDR);
5088 len = (i >> 9) & 0x1f; /* ELD buffer size */
5089 I915_WRITE(G4X_AUD_CNTL_ST, i);
5094 len = min_t(uint8_t, eld[2], len);
5095 DRM_DEBUG_DRIVER("ELD size %d\n", len);
5096 for (i = 0; i < len; i++)
5097 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
5099 i = I915_READ(G4X_AUD_CNTL_ST);
5101 I915_WRITE(G4X_AUD_CNTL_ST, i);
5104 static void haswell_write_eld(struct drm_connector *connector,
5105 struct drm_crtc *crtc)
5107 struct drm_i915_private *dev_priv = connector->dev->dev_private;
5108 uint8_t *eld = connector->eld;
5109 struct drm_device *dev = crtc->dev;
5113 int pipe = to_intel_crtc(crtc)->pipe;
5116 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
5117 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
5118 int aud_config = HSW_AUD_CFG(pipe);
5119 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
5122 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
5124 /* Audio output enable */
5125 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
5126 tmp = I915_READ(aud_cntrl_st2);
5127 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
5128 I915_WRITE(aud_cntrl_st2, tmp);
5130 /* Wait for 1 vertical blank */
5131 intel_wait_for_vblank(dev, pipe);
5133 /* Set ELD valid state */
5134 tmp = I915_READ(aud_cntrl_st2);
5135 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp);
5136 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
5137 I915_WRITE(aud_cntrl_st2, tmp);
5138 tmp = I915_READ(aud_cntrl_st2);
5139 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp);
5141 /* Enable HDMI mode */
5142 tmp = I915_READ(aud_config);
5143 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp);
5144 /* clear N_programing_enable and N_value_index */
5145 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
5146 I915_WRITE(aud_config, tmp);
5148 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
5150 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
5152 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
5153 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
5154 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
5155 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
5157 I915_WRITE(aud_config, 0);
5159 if (intel_eld_uptodate(connector,
5160 aud_cntrl_st2, eldv,
5161 aud_cntl_st, IBX_ELD_ADDRESS,
5165 i = I915_READ(aud_cntrl_st2);
5167 I915_WRITE(aud_cntrl_st2, i);
5172 i = I915_READ(aud_cntl_st);
5173 i &= ~IBX_ELD_ADDRESS;
5174 I915_WRITE(aud_cntl_st, i);
5175 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
5176 DRM_DEBUG_DRIVER("port num:%d\n", i);
5178 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
5179 DRM_DEBUG_DRIVER("ELD size %d\n", len);
5180 for (i = 0; i < len; i++)
5181 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
5183 i = I915_READ(aud_cntrl_st2);
5185 I915_WRITE(aud_cntrl_st2, i);
5189 static void ironlake_write_eld(struct drm_connector *connector,
5190 struct drm_crtc *crtc)
5192 struct drm_i915_private *dev_priv = connector->dev->dev_private;
5193 uint8_t *eld = connector->eld;
5201 int pipe = to_intel_crtc(crtc)->pipe;
5203 if (HAS_PCH_IBX(connector->dev)) {
5204 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
5205 aud_config = IBX_AUD_CFG(pipe);
5206 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
5207 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
5209 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
5210 aud_config = CPT_AUD_CFG(pipe);
5211 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
5212 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
5215 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
5217 i = I915_READ(aud_cntl_st);
5218 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
5220 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
5221 /* operate blindly on all ports */
5222 eldv = IBX_ELD_VALIDB;
5223 eldv |= IBX_ELD_VALIDB << 4;
5224 eldv |= IBX_ELD_VALIDB << 8;
5226 DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i);
5227 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
5230 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
5231 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
5232 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
5233 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
5235 I915_WRITE(aud_config, 0);
5237 if (intel_eld_uptodate(connector,
5238 aud_cntrl_st2, eldv,
5239 aud_cntl_st, IBX_ELD_ADDRESS,
5243 i = I915_READ(aud_cntrl_st2);
5245 I915_WRITE(aud_cntrl_st2, i);
5250 i = I915_READ(aud_cntl_st);
5251 i &= ~IBX_ELD_ADDRESS;
5252 I915_WRITE(aud_cntl_st, i);
5254 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
5255 DRM_DEBUG_DRIVER("ELD size %d\n", len);
5256 for (i = 0; i < len; i++)
5257 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
5259 i = I915_READ(aud_cntrl_st2);
5261 I915_WRITE(aud_cntrl_st2, i);
5264 void intel_write_eld(struct drm_encoder *encoder,
5265 struct drm_display_mode *mode)
5267 struct drm_crtc *crtc = encoder->crtc;
5268 struct drm_connector *connector;
5269 struct drm_device *dev = encoder->dev;
5270 struct drm_i915_private *dev_priv = dev->dev_private;
5272 connector = drm_select_eld(encoder, mode);
5276 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
5278 drm_get_connector_name(connector),
5279 connector->encoder->base.id,
5280 drm_get_encoder_name(connector->encoder));
5282 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
5284 if (dev_priv->display.write_eld)
5285 dev_priv->display.write_eld(connector, crtc);
5288 /** Loads the palette/gamma unit for the CRTC with the prepared values */
5289 void intel_crtc_load_lut(struct drm_crtc *crtc)
5291 struct drm_device *dev = crtc->dev;
5292 struct drm_i915_private *dev_priv = dev->dev_private;
5293 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5294 int palreg = PALETTE(intel_crtc->pipe);
5297 /* The clocks have to be on to load the palette. */
5298 if (!crtc->enabled || !intel_crtc->active)
5301 /* use legacy palette for Ironlake */
5302 if (HAS_PCH_SPLIT(dev))
5303 palreg = LGC_PALETTE(intel_crtc->pipe);
5305 for (i = 0; i < 256; i++) {
5306 I915_WRITE(palreg + 4 * i,
5307 (intel_crtc->lut_r[i] << 16) |
5308 (intel_crtc->lut_g[i] << 8) |
5309 intel_crtc->lut_b[i]);
5313 static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
5315 struct drm_device *dev = crtc->dev;
5316 struct drm_i915_private *dev_priv = dev->dev_private;
5317 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5318 bool visible = base != 0;
5321 if (intel_crtc->cursor_visible == visible)
5324 cntl = I915_READ(_CURACNTR);
5326 /* On these chipsets we can only modify the base whilst
5327 * the cursor is disabled.
5329 I915_WRITE(_CURABASE, base);
5331 cntl &= ~(CURSOR_FORMAT_MASK);
5332 /* XXX width must be 64, stride 256 => 0x00 << 28 */
5333 cntl |= CURSOR_ENABLE |
5334 CURSOR_GAMMA_ENABLE |
5337 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
5338 I915_WRITE(_CURACNTR, cntl);
5340 intel_crtc->cursor_visible = visible;
5343 static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
5345 struct drm_device *dev = crtc->dev;
5346 struct drm_i915_private *dev_priv = dev->dev_private;
5347 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5348 int pipe = intel_crtc->pipe;
5349 bool visible = base != 0;
5351 if (intel_crtc->cursor_visible != visible) {
5352 uint32_t cntl = I915_READ(CURCNTR(pipe));
5354 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
5355 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
5356 cntl |= pipe << 28; /* Connect to correct pipe */
5358 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
5359 cntl |= CURSOR_MODE_DISABLE;
5361 I915_WRITE(CURCNTR(pipe), cntl);
5363 intel_crtc->cursor_visible = visible;
5365 /* and commit changes on next vblank */
5366 I915_WRITE(CURBASE(pipe), base);
5369 static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
5371 struct drm_device *dev = crtc->dev;
5372 struct drm_i915_private *dev_priv = dev->dev_private;
5373 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5374 int pipe = intel_crtc->pipe;
5375 bool visible = base != 0;
5377 if (intel_crtc->cursor_visible != visible) {
5378 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
5380 cntl &= ~CURSOR_MODE;
5381 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
5383 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
5384 cntl |= CURSOR_MODE_DISABLE;
5386 I915_WRITE(CURCNTR_IVB(pipe), cntl);
5388 intel_crtc->cursor_visible = visible;
5390 /* and commit changes on next vblank */
5391 I915_WRITE(CURBASE_IVB(pipe), base);
5394 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
5395 static void intel_crtc_update_cursor(struct drm_crtc *crtc,
5398 struct drm_device *dev = crtc->dev;
5399 struct drm_i915_private *dev_priv = dev->dev_private;
5400 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5401 int pipe = intel_crtc->pipe;
5402 int x = intel_crtc->cursor_x;
5403 int y = intel_crtc->cursor_y;
5409 if (on && crtc->enabled && crtc->fb) {
5410 base = intel_crtc->cursor_addr;
5411 if (x > (int) crtc->fb->width)
5414 if (y > (int) crtc->fb->height)
5420 if (x + intel_crtc->cursor_width < 0)
5423 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
5426 pos |= x << CURSOR_X_SHIFT;
5429 if (y + intel_crtc->cursor_height < 0)
5432 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
5435 pos |= y << CURSOR_Y_SHIFT;
5437 visible = base != 0;
5438 if (!visible && !intel_crtc->cursor_visible)
5441 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
5442 I915_WRITE(CURPOS_IVB(pipe), pos);
5443 ivb_update_cursor(crtc, base);
5445 I915_WRITE(CURPOS(pipe), pos);
5446 if (IS_845G(dev) || IS_I865G(dev))
5447 i845_update_cursor(crtc, base);
5449 i9xx_update_cursor(crtc, base);
5453 static int intel_crtc_cursor_set(struct drm_crtc *crtc,
5454 struct drm_file *file,
5456 uint32_t width, uint32_t height)
5458 struct drm_device *dev = crtc->dev;
5459 struct drm_i915_private *dev_priv = dev->dev_private;
5460 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5461 struct drm_i915_gem_object *obj;
5465 /* if we want to turn off the cursor ignore width and height */
5467 DRM_DEBUG_KMS("cursor off\n");
5470 mutex_lock(&dev->struct_mutex);
5474 /* Currently we only support 64x64 cursors */
5475 if (width != 64 || height != 64) {
5476 DRM_ERROR("we currently only support 64x64 cursors\n");
5480 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
5481 if (&obj->base == NULL)
5484 if (obj->base.size < width * height * 4) {
5485 DRM_ERROR("buffer is to small\n");
5490 /* we only need to pin inside GTT if cursor is non-phy */
5491 mutex_lock(&dev->struct_mutex);
5492 if (!dev_priv->info->cursor_needs_physical) {
5493 if (obj->tiling_mode) {
5494 DRM_ERROR("cursor cannot be tiled\n");
5499 ret = i915_gem_object_pin_to_display_plane(obj, 0, NULL);
5501 DRM_ERROR("failed to move cursor bo into the GTT\n");
5505 ret = i915_gem_object_put_fence(obj);
5507 DRM_ERROR("failed to release fence for cursor");
5511 addr = obj->gtt_offset;
5513 int align = IS_I830(dev) ? 16 * 1024 : 256;
5514 ret = i915_gem_attach_phys_object(dev, obj,
5515 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
5518 DRM_ERROR("failed to attach phys object\n");
5521 addr = obj->phys_obj->handle->busaddr;
5525 I915_WRITE(CURSIZE, (height << 12) | width);
5528 if (intel_crtc->cursor_bo) {
5529 if (dev_priv->info->cursor_needs_physical) {
5530 if (intel_crtc->cursor_bo != obj)
5531 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
5533 i915_gem_object_unpin(intel_crtc->cursor_bo);
5534 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
5537 mutex_unlock(&dev->struct_mutex);
5539 intel_crtc->cursor_addr = addr;
5540 intel_crtc->cursor_bo = obj;
5541 intel_crtc->cursor_width = width;
5542 intel_crtc->cursor_height = height;
5544 intel_crtc_update_cursor(crtc, true);
5548 i915_gem_object_unpin(obj);
5550 mutex_unlock(&dev->struct_mutex);
5552 drm_gem_object_unreference_unlocked(&obj->base);
5556 static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
5558 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5560 intel_crtc->cursor_x = x;
5561 intel_crtc->cursor_y = y;
5563 intel_crtc_update_cursor(crtc, true);
5568 /** Sets the color ramps on behalf of RandR */
5569 void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
5570 u16 blue, int regno)
5572 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5574 intel_crtc->lut_r[regno] = red >> 8;
5575 intel_crtc->lut_g[regno] = green >> 8;
5576 intel_crtc->lut_b[regno] = blue >> 8;
5579 void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
5580 u16 *blue, int regno)
5582 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5584 *red = intel_crtc->lut_r[regno] << 8;
5585 *green = intel_crtc->lut_g[regno] << 8;
5586 *blue = intel_crtc->lut_b[regno] << 8;
5589 static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
5590 u16 *blue, uint32_t start, uint32_t size)
5592 int end = (start + size > 256) ? 256 : start + size, i;
5593 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5595 for (i = start; i < end; i++) {
5596 intel_crtc->lut_r[i] = red[i] >> 8;
5597 intel_crtc->lut_g[i] = green[i] >> 8;
5598 intel_crtc->lut_b[i] = blue[i] >> 8;
5601 intel_crtc_load_lut(crtc);
5605 * Get a pipe with a simple mode set on it for doing load-based monitor
5608 * It will be up to the load-detect code to adjust the pipe as appropriate for
5609 * its requirements. The pipe will be connected to no other encoders.
5611 * Currently this code will only succeed if there is a pipe with no encoders
5612 * configured for it. In the future, it could choose to temporarily disable
5613 * some outputs to free up a pipe for its use.
5615 * \return crtc, or NULL if no pipes are available.
5618 /* VESA 640x480x72Hz mode to set on the pipe */
5619 static struct drm_display_mode load_detect_mode = {
5620 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
5621 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
5624 static struct drm_framebuffer *
5625 intel_framebuffer_create(struct drm_device *dev,
5626 struct drm_mode_fb_cmd2 *mode_cmd,
5627 struct drm_i915_gem_object *obj)
5629 struct intel_framebuffer *intel_fb;
5632 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
5634 drm_gem_object_unreference_unlocked(&obj->base);
5635 return ERR_PTR(-ENOMEM);
5638 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
5640 drm_gem_object_unreference_unlocked(&obj->base);
5642 return ERR_PTR(ret);
5645 return &intel_fb->base;
5649 intel_framebuffer_pitch_for_width(int width, int bpp)
5651 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
5652 return ALIGN(pitch, 64);
5656 intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
5658 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
5659 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
5662 static struct drm_framebuffer *
5663 intel_framebuffer_create_for_mode(struct drm_device *dev,
5664 struct drm_display_mode *mode,
5667 struct drm_i915_gem_object *obj;
5668 struct drm_mode_fb_cmd2 mode_cmd;
5670 obj = i915_gem_alloc_object(dev,
5671 intel_framebuffer_size_for_mode(mode, bpp));
5673 return ERR_PTR(-ENOMEM);
5675 mode_cmd.width = mode->hdisplay;
5676 mode_cmd.height = mode->vdisplay;
5677 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
5679 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
5681 return intel_framebuffer_create(dev, &mode_cmd, obj);
5684 static struct drm_framebuffer *
5685 mode_fits_in_fbdev(struct drm_device *dev,
5686 struct drm_display_mode *mode)
5688 struct drm_i915_private *dev_priv = dev->dev_private;
5689 struct drm_i915_gem_object *obj;
5690 struct drm_framebuffer *fb;
5692 if (dev_priv->fbdev == NULL)
5695 obj = dev_priv->fbdev->ifb.obj;
5699 fb = &dev_priv->fbdev->ifb.base;
5700 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
5701 fb->bits_per_pixel))
5704 if (obj->base.size < mode->vdisplay * fb->pitches[0])
5710 bool intel_get_load_detect_pipe(struct drm_connector *connector,
5711 struct drm_display_mode *mode,
5712 struct intel_load_detect_pipe *old)
5714 struct intel_crtc *intel_crtc;
5715 struct intel_encoder *intel_encoder =
5716 intel_attached_encoder(connector);
5717 struct drm_crtc *possible_crtc;
5718 struct drm_encoder *encoder = &intel_encoder->base;
5719 struct drm_crtc *crtc = NULL;
5720 struct drm_device *dev = encoder->dev;
5721 struct drm_framebuffer *old_fb;
5724 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
5725 connector->base.id, drm_get_connector_name(connector),
5726 encoder->base.id, drm_get_encoder_name(encoder));
5729 * Algorithm gets a little messy:
5731 * - if the connector already has an assigned crtc, use it (but make
5732 * sure it's on first)
5734 * - try to find the first unused crtc that can drive this connector,
5735 * and use that if we find one
5738 /* See if we already have a CRTC for this connector */
5739 if (encoder->crtc) {
5740 crtc = encoder->crtc;
5742 old->dpms_mode = connector->dpms;
5743 old->load_detect_temp = false;
5745 /* Make sure the crtc and connector are running */
5746 if (connector->dpms != DRM_MODE_DPMS_ON)
5747 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
5752 /* Find an unused one (if possible) */
5753 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
5755 if (!(encoder->possible_crtcs & (1 << i)))
5757 if (!possible_crtc->enabled) {
5758 crtc = possible_crtc;
5764 * If we didn't find an unused CRTC, don't use any.
5767 DRM_DEBUG_KMS("no pipe available for load-detect\n");
5771 encoder->crtc = crtc;
5772 connector->encoder = encoder;
5774 intel_crtc = to_intel_crtc(crtc);
5775 old->dpms_mode = connector->dpms;
5776 old->load_detect_temp = true;
5777 old->release_fb = NULL;
5780 mode = &load_detect_mode;
5784 /* We need a framebuffer large enough to accommodate all accesses
5785 * that the plane may generate whilst we perform load detection.
5786 * We can not rely on the fbcon either being present (we get called
5787 * during its initialisation to detect all boot displays, or it may
5788 * not even exist) or that it is large enough to satisfy the
5791 crtc->fb = mode_fits_in_fbdev(dev, mode);
5792 if (crtc->fb == NULL) {
5793 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
5794 crtc->fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
5795 old->release_fb = crtc->fb;
5797 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
5798 if (IS_ERR(crtc->fb)) {
5799 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
5803 if (!intel_set_mode(crtc, mode, 0, 0, old_fb)) {
5804 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
5805 if (old->release_fb)
5806 old->release_fb->funcs->destroy(old->release_fb);
5810 /* let the connector get through one full cycle before testing */
5811 intel_wait_for_vblank(dev, intel_crtc->pipe);
5815 connector->encoder = NULL;
5816 encoder->crtc = NULL;
5821 void intel_release_load_detect_pipe(struct drm_connector *connector,
5822 struct intel_load_detect_pipe *old)
5824 struct intel_encoder *intel_encoder =
5825 intel_attached_encoder(connector);
5826 struct drm_encoder *encoder = &intel_encoder->base;
5827 struct drm_device *dev = encoder->dev;
5829 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
5830 connector->base.id, drm_get_connector_name(connector),
5831 encoder->base.id, drm_get_encoder_name(encoder));
5833 if (old->load_detect_temp) {
5834 connector->encoder = NULL;
5835 encoder->crtc = NULL;
5836 drm_helper_disable_unused_functions(dev);
5838 if (old->release_fb)
5839 old->release_fb->funcs->destroy(old->release_fb);
5844 /* Switch crtc and encoder back off if necessary */
5845 if (old->dpms_mode != DRM_MODE_DPMS_ON)
5846 connector->funcs->dpms(connector, old->dpms_mode);
5849 /* Returns the clock of the currently programmed mode of the given pipe. */
5850 static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
5852 struct drm_i915_private *dev_priv = dev->dev_private;
5853 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5854 int pipe = intel_crtc->pipe;
5855 u32 dpll = I915_READ(DPLL(pipe));
5857 intel_clock_t clock;
5859 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
5860 fp = I915_READ(FP0(pipe));
5862 fp = I915_READ(FP1(pipe));
5864 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
5865 if (IS_PINEVIEW(dev)) {
5866 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
5867 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
5869 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
5870 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
5873 if (!IS_GEN2(dev)) {
5874 if (IS_PINEVIEW(dev))
5875 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
5876 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
5878 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
5879 DPLL_FPA01_P1_POST_DIV_SHIFT);
5881 switch (dpll & DPLL_MODE_MASK) {
5882 case DPLLB_MODE_DAC_SERIAL:
5883 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
5886 case DPLLB_MODE_LVDS:
5887 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
5891 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
5892 "mode\n", (int)(dpll & DPLL_MODE_MASK));
5896 /* XXX: Handle the 100Mhz refclk */
5897 intel_clock(dev, 96000, &clock);
5899 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
5902 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
5903 DPLL_FPA01_P1_POST_DIV_SHIFT);
5906 if ((dpll & PLL_REF_INPUT_MASK) ==
5907 PLLB_REF_INPUT_SPREADSPECTRUMIN) {
5908 /* XXX: might not be 66MHz */
5909 intel_clock(dev, 66000, &clock);
5911 intel_clock(dev, 48000, &clock);
5913 if (dpll & PLL_P1_DIVIDE_BY_TWO)
5916 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
5917 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
5919 if (dpll & PLL_P2_DIVIDE_BY_4)
5924 intel_clock(dev, 48000, &clock);
5928 /* XXX: It would be nice to validate the clocks, but we can't reuse
5929 * i830PllIsValid() because it relies on the xf86_config connector
5930 * configuration being accurate, which it isn't necessarily.
5936 /** Returns the currently programmed mode of the given pipe. */
5937 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
5938 struct drm_crtc *crtc)
5940 struct drm_i915_private *dev_priv = dev->dev_private;
5941 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5942 int pipe = intel_crtc->pipe;
5943 struct drm_display_mode *mode;
5944 int htot = I915_READ(HTOTAL(pipe));
5945 int hsync = I915_READ(HSYNC(pipe));
5946 int vtot = I915_READ(VTOTAL(pipe));
5947 int vsync = I915_READ(VSYNC(pipe));
5949 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
5953 mode->clock = intel_crtc_clock_get(dev, crtc);
5954 mode->hdisplay = (htot & 0xffff) + 1;
5955 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
5956 mode->hsync_start = (hsync & 0xffff) + 1;
5957 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
5958 mode->vdisplay = (vtot & 0xffff) + 1;
5959 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
5960 mode->vsync_start = (vsync & 0xffff) + 1;
5961 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
5963 drm_mode_set_name(mode);
5968 static void intel_increase_pllclock(struct drm_crtc *crtc)
5970 struct drm_device *dev = crtc->dev;
5971 drm_i915_private_t *dev_priv = dev->dev_private;
5972 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5973 int pipe = intel_crtc->pipe;
5974 int dpll_reg = DPLL(pipe);
5977 if (HAS_PCH_SPLIT(dev))
5980 if (!dev_priv->lvds_downclock_avail)
5983 dpll = I915_READ(dpll_reg);
5984 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
5985 DRM_DEBUG_DRIVER("upclocking LVDS\n");
5987 assert_panel_unlocked(dev_priv, pipe);
5989 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
5990 I915_WRITE(dpll_reg, dpll);
5991 intel_wait_for_vblank(dev, pipe);
5993 dpll = I915_READ(dpll_reg);
5994 if (dpll & DISPLAY_RATE_SELECT_FPA1)
5995 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
5999 static void intel_decrease_pllclock(struct drm_crtc *crtc)
6001 struct drm_device *dev = crtc->dev;
6002 drm_i915_private_t *dev_priv = dev->dev_private;
6003 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6005 if (HAS_PCH_SPLIT(dev))
6008 if (!dev_priv->lvds_downclock_avail)
6012 * Since this is called by a timer, we should never get here in
6015 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
6016 int pipe = intel_crtc->pipe;
6017 int dpll_reg = DPLL(pipe);
6020 DRM_DEBUG_DRIVER("downclocking LVDS\n");
6022 assert_panel_unlocked(dev_priv, pipe);
6024 dpll = I915_READ(dpll_reg);
6025 dpll |= DISPLAY_RATE_SELECT_FPA1;
6026 I915_WRITE(dpll_reg, dpll);
6027 intel_wait_for_vblank(dev, pipe);
6028 dpll = I915_READ(dpll_reg);
6029 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
6030 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
6035 void intel_mark_busy(struct drm_device *dev)
6037 i915_update_gfx_val(dev->dev_private);
6040 void intel_mark_idle(struct drm_device *dev)
6044 void intel_mark_fb_busy(struct drm_i915_gem_object *obj)
6046 struct drm_device *dev = obj->base.dev;
6047 struct drm_crtc *crtc;
6049 if (!i915_powersave)
6052 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
6056 if (to_intel_framebuffer(crtc->fb)->obj == obj)
6057 intel_increase_pllclock(crtc);
6061 void intel_mark_fb_idle(struct drm_i915_gem_object *obj)
6063 struct drm_device *dev = obj->base.dev;
6064 struct drm_crtc *crtc;
6066 if (!i915_powersave)
6069 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
6073 if (to_intel_framebuffer(crtc->fb)->obj == obj)
6074 intel_decrease_pllclock(crtc);
6078 static void intel_crtc_destroy(struct drm_crtc *crtc)
6080 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6081 struct drm_device *dev = crtc->dev;
6082 struct intel_unpin_work *work;
6083 unsigned long flags;
6085 spin_lock_irqsave(&dev->event_lock, flags);
6086 work = intel_crtc->unpin_work;
6087 intel_crtc->unpin_work = NULL;
6088 spin_unlock_irqrestore(&dev->event_lock, flags);
6091 cancel_work_sync(&work->work);
6095 drm_crtc_cleanup(crtc);
6100 static void intel_unpin_work_fn(struct work_struct *__work)
6102 struct intel_unpin_work *work =
6103 container_of(__work, struct intel_unpin_work, work);
6105 mutex_lock(&work->dev->struct_mutex);
6106 intel_unpin_fb_obj(work->old_fb_obj);
6107 drm_gem_object_unreference(&work->pending_flip_obj->base);
6108 drm_gem_object_unreference(&work->old_fb_obj->base);
6110 intel_update_fbc(work->dev);
6111 mutex_unlock(&work->dev->struct_mutex);
6115 static void do_intel_finish_page_flip(struct drm_device *dev,
6116 struct drm_crtc *crtc)
6118 drm_i915_private_t *dev_priv = dev->dev_private;
6119 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6120 struct intel_unpin_work *work;
6121 struct drm_i915_gem_object *obj;
6122 struct drm_pending_vblank_event *e;
6123 struct timeval tnow, tvbl;
6124 unsigned long flags;
6126 /* Ignore early vblank irqs */
6127 if (intel_crtc == NULL)
6130 do_gettimeofday(&tnow);
6132 spin_lock_irqsave(&dev->event_lock, flags);
6133 work = intel_crtc->unpin_work;
6134 if (work == NULL || !work->pending) {
6135 spin_unlock_irqrestore(&dev->event_lock, flags);
6139 intel_crtc->unpin_work = NULL;
6143 e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl);
6145 /* Called before vblank count and timestamps have
6146 * been updated for the vblank interval of flip
6147 * completion? Need to increment vblank count and
6148 * add one videorefresh duration to returned timestamp
6149 * to account for this. We assume this happened if we
6150 * get called over 0.9 frame durations after the last
6151 * timestamped vblank.
6153 * This calculation can not be used with vrefresh rates
6154 * below 5Hz (10Hz to be on the safe side) without
6155 * promoting to 64 integers.
6157 if (10 * (timeval_to_ns(&tnow) - timeval_to_ns(&tvbl)) >
6158 9 * crtc->framedur_ns) {
6159 e->event.sequence++;
6160 tvbl = ns_to_timeval(timeval_to_ns(&tvbl) +
6164 e->event.tv_sec = tvbl.tv_sec;
6165 e->event.tv_usec = tvbl.tv_usec;
6167 list_add_tail(&e->base.link,
6168 &e->base.file_priv->event_list);
6169 wake_up_interruptible(&e->base.file_priv->event_wait);
6172 drm_vblank_put(dev, intel_crtc->pipe);
6174 spin_unlock_irqrestore(&dev->event_lock, flags);
6176 obj = work->old_fb_obj;
6178 atomic_clear_mask(1 << intel_crtc->plane,
6179 &obj->pending_flip.counter);
6180 if (atomic_read(&obj->pending_flip) == 0)
6181 wake_up(&dev_priv->pending_flip_queue);
6183 schedule_work(&work->work);
6185 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
6188 void intel_finish_page_flip(struct drm_device *dev, int pipe)
6190 drm_i915_private_t *dev_priv = dev->dev_private;
6191 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
6193 do_intel_finish_page_flip(dev, crtc);
6196 void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
6198 drm_i915_private_t *dev_priv = dev->dev_private;
6199 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
6201 do_intel_finish_page_flip(dev, crtc);
6204 void intel_prepare_page_flip(struct drm_device *dev, int plane)
6206 drm_i915_private_t *dev_priv = dev->dev_private;
6207 struct intel_crtc *intel_crtc =
6208 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
6209 unsigned long flags;
6211 spin_lock_irqsave(&dev->event_lock, flags);
6212 if (intel_crtc->unpin_work) {
6213 if ((++intel_crtc->unpin_work->pending) > 1)
6214 DRM_ERROR("Prepared flip multiple times\n");
6216 DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n");
6218 spin_unlock_irqrestore(&dev->event_lock, flags);
6221 static int intel_gen2_queue_flip(struct drm_device *dev,
6222 struct drm_crtc *crtc,
6223 struct drm_framebuffer *fb,
6224 struct drm_i915_gem_object *obj)
6226 struct drm_i915_private *dev_priv = dev->dev_private;
6227 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6229 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
6232 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
6236 ret = intel_ring_begin(ring, 6);
6240 /* Can't queue multiple flips, so wait for the previous
6241 * one to finish before executing the next.
6243 if (intel_crtc->plane)
6244 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
6246 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
6247 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
6248 intel_ring_emit(ring, MI_NOOP);
6249 intel_ring_emit(ring, MI_DISPLAY_FLIP |
6250 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
6251 intel_ring_emit(ring, fb->pitches[0]);
6252 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
6253 intel_ring_emit(ring, 0); /* aux display base address, unused */
6254 intel_ring_advance(ring);
6258 intel_unpin_fb_obj(obj);
6263 static int intel_gen3_queue_flip(struct drm_device *dev,
6264 struct drm_crtc *crtc,
6265 struct drm_framebuffer *fb,
6266 struct drm_i915_gem_object *obj)
6268 struct drm_i915_private *dev_priv = dev->dev_private;
6269 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6271 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
6274 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
6278 ret = intel_ring_begin(ring, 6);
6282 if (intel_crtc->plane)
6283 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
6285 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
6286 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
6287 intel_ring_emit(ring, MI_NOOP);
6288 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
6289 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
6290 intel_ring_emit(ring, fb->pitches[0]);
6291 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
6292 intel_ring_emit(ring, MI_NOOP);
6294 intel_ring_advance(ring);
6298 intel_unpin_fb_obj(obj);
6303 static int intel_gen4_queue_flip(struct drm_device *dev,
6304 struct drm_crtc *crtc,
6305 struct drm_framebuffer *fb,
6306 struct drm_i915_gem_object *obj)
6308 struct drm_i915_private *dev_priv = dev->dev_private;
6309 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6310 uint32_t pf, pipesrc;
6311 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
6314 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
6318 ret = intel_ring_begin(ring, 4);
6322 /* i965+ uses the linear or tiled offsets from the
6323 * Display Registers (which do not change across a page-flip)
6324 * so we need only reprogram the base address.
6326 intel_ring_emit(ring, MI_DISPLAY_FLIP |
6327 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
6328 intel_ring_emit(ring, fb->pitches[0]);
6329 intel_ring_emit(ring,
6330 (obj->gtt_offset + intel_crtc->dspaddr_offset) |
6333 /* XXX Enabling the panel-fitter across page-flip is so far
6334 * untested on non-native modes, so ignore it for now.
6335 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
6338 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
6339 intel_ring_emit(ring, pf | pipesrc);
6340 intel_ring_advance(ring);
6344 intel_unpin_fb_obj(obj);
6349 static int intel_gen6_queue_flip(struct drm_device *dev,
6350 struct drm_crtc *crtc,
6351 struct drm_framebuffer *fb,
6352 struct drm_i915_gem_object *obj)
6354 struct drm_i915_private *dev_priv = dev->dev_private;
6355 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6356 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
6357 uint32_t pf, pipesrc;
6360 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
6364 ret = intel_ring_begin(ring, 4);
6368 intel_ring_emit(ring, MI_DISPLAY_FLIP |
6369 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
6370 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
6371 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
6373 /* Contrary to the suggestions in the documentation,
6374 * "Enable Panel Fitter" does not seem to be required when page
6375 * flipping with a non-native mode, and worse causes a normal
6377 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
6380 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
6381 intel_ring_emit(ring, pf | pipesrc);
6382 intel_ring_advance(ring);
6386 intel_unpin_fb_obj(obj);
6392 * On gen7 we currently use the blit ring because (in early silicon at least)
6393 * the render ring doesn't give us interrpts for page flip completion, which
6394 * means clients will hang after the first flip is queued. Fortunately the
6395 * blit ring generates interrupts properly, so use it instead.
6397 static int intel_gen7_queue_flip(struct drm_device *dev,
6398 struct drm_crtc *crtc,
6399 struct drm_framebuffer *fb,
6400 struct drm_i915_gem_object *obj)
6402 struct drm_i915_private *dev_priv = dev->dev_private;
6403 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6404 struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
6405 uint32_t plane_bit = 0;
6408 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
6412 switch(intel_crtc->plane) {
6414 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
6417 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
6420 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
6423 WARN_ONCE(1, "unknown plane in flip command\n");
6428 ret = intel_ring_begin(ring, 4);
6432 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
6433 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
6434 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
6435 intel_ring_emit(ring, (MI_NOOP));
6436 intel_ring_advance(ring);
6440 intel_unpin_fb_obj(obj);
6445 static int intel_default_queue_flip(struct drm_device *dev,
6446 struct drm_crtc *crtc,
6447 struct drm_framebuffer *fb,
6448 struct drm_i915_gem_object *obj)
6453 static int intel_crtc_page_flip(struct drm_crtc *crtc,
6454 struct drm_framebuffer *fb,
6455 struct drm_pending_vblank_event *event)
6457 struct drm_device *dev = crtc->dev;
6458 struct drm_i915_private *dev_priv = dev->dev_private;
6459 struct intel_framebuffer *intel_fb;
6460 struct drm_i915_gem_object *obj;
6461 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6462 struct intel_unpin_work *work;
6463 unsigned long flags;
6466 /* Can't change pixel format via MI display flips. */
6467 if (fb->pixel_format != crtc->fb->pixel_format)
6471 * TILEOFF/LINOFF registers can't be changed via MI display flips.
6472 * Note that pitch changes could also affect these register.
6474 if (INTEL_INFO(dev)->gen > 3 &&
6475 (fb->offsets[0] != crtc->fb->offsets[0] ||
6476 fb->pitches[0] != crtc->fb->pitches[0]))
6479 work = kzalloc(sizeof *work, GFP_KERNEL);
6483 work->event = event;
6484 work->dev = crtc->dev;
6485 intel_fb = to_intel_framebuffer(crtc->fb);
6486 work->old_fb_obj = intel_fb->obj;
6487 INIT_WORK(&work->work, intel_unpin_work_fn);
6489 ret = drm_vblank_get(dev, intel_crtc->pipe);
6493 /* We borrow the event spin lock for protecting unpin_work */
6494 spin_lock_irqsave(&dev->event_lock, flags);
6495 if (intel_crtc->unpin_work) {
6496 spin_unlock_irqrestore(&dev->event_lock, flags);
6498 drm_vblank_put(dev, intel_crtc->pipe);
6500 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
6503 intel_crtc->unpin_work = work;
6504 spin_unlock_irqrestore(&dev->event_lock, flags);
6506 intel_fb = to_intel_framebuffer(fb);
6507 obj = intel_fb->obj;
6509 ret = i915_mutex_lock_interruptible(dev);
6513 /* Reference the objects for the scheduled work. */
6514 drm_gem_object_reference(&work->old_fb_obj->base);
6515 drm_gem_object_reference(&obj->base);
6519 work->pending_flip_obj = obj;
6521 work->enable_stall_check = true;
6523 /* Block clients from rendering to the new back buffer until
6524 * the flip occurs and the object is no longer visible.
6526 atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
6528 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj);
6530 goto cleanup_pending;
6532 intel_disable_fbc(dev);
6533 intel_mark_fb_busy(obj);
6534 mutex_unlock(&dev->struct_mutex);
6536 trace_i915_flip_request(intel_crtc->plane, obj);
6541 atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
6542 drm_gem_object_unreference(&work->old_fb_obj->base);
6543 drm_gem_object_unreference(&obj->base);
6544 mutex_unlock(&dev->struct_mutex);
6547 spin_lock_irqsave(&dev->event_lock, flags);
6548 intel_crtc->unpin_work = NULL;
6549 spin_unlock_irqrestore(&dev->event_lock, flags);
6551 drm_vblank_put(dev, intel_crtc->pipe);
6558 static struct drm_crtc_helper_funcs intel_helper_funcs = {
6559 .mode_set_base_atomic = intel_pipe_set_base_atomic,
6560 .load_lut = intel_crtc_load_lut,
6561 .disable = intel_crtc_disable,
6564 static bool intel_encoder_crtc_ok(struct drm_encoder *encoder,
6565 struct drm_crtc *crtc)
6567 struct drm_device *dev;
6568 struct drm_crtc *tmp;
6571 WARN(!crtc, "checking null crtc?\n");
6575 list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
6581 if (encoder->possible_crtcs & crtc_mask)
6587 intel_crtc_helper_disable(struct drm_crtc *crtc)
6589 struct drm_device *dev = crtc->dev;
6590 struct drm_connector *connector;
6591 struct drm_encoder *encoder;
6593 /* Decouple all encoders and their attached connectors from this crtc */
6594 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
6595 if (encoder->crtc != crtc)
6598 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
6599 if (connector->encoder != encoder)
6602 connector->encoder = NULL;
6606 drm_helper_disable_unused_functions(dev);
6611 intel_crtc_prepare_encoders(struct drm_device *dev)
6613 struct intel_encoder *encoder;
6615 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
6616 /* Disable unused encoders */
6617 if (encoder->base.crtc == NULL)
6618 encoder->disable(encoder);
6622 bool intel_set_mode(struct drm_crtc *crtc,
6623 struct drm_display_mode *mode,
6624 int x, int y, struct drm_framebuffer *old_fb)
6626 struct drm_device *dev = crtc->dev;
6627 drm_i915_private_t *dev_priv = dev->dev_private;
6628 struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode;
6629 struct drm_encoder_helper_funcs *encoder_funcs;
6630 int saved_x, saved_y;
6631 struct drm_encoder *encoder;
6634 crtc->enabled = drm_helper_crtc_in_use(crtc);
6638 adjusted_mode = drm_mode_duplicate(dev, mode);
6642 saved_hwmode = crtc->hwmode;
6643 saved_mode = crtc->mode;
6647 /* Update crtc values up front so the driver can rely on them for mode
6654 /* Pass our mode to the connectors and the CRTC to give them a chance to
6655 * adjust it according to limitations or connector properties, and also
6656 * a chance to reject the mode entirely.
6658 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
6660 if (encoder->crtc != crtc)
6662 encoder_funcs = encoder->helper_private;
6663 if (!(ret = encoder_funcs->mode_fixup(encoder, mode,
6665 DRM_DEBUG_KMS("Encoder fixup failed\n");
6670 if (!(ret = intel_crtc_mode_fixup(crtc, mode, adjusted_mode))) {
6671 DRM_DEBUG_KMS("CRTC fixup failed\n");
6674 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
6676 intel_crtc_prepare_encoders(dev);
6678 dev_priv->display.crtc_disable(crtc);
6680 /* Set up the DPLL and any encoders state that needs to adjust or depend
6683 ret = !intel_crtc_mode_set(crtc, mode, adjusted_mode, x, y, old_fb);
6687 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
6689 if (encoder->crtc != crtc)
6692 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
6693 encoder->base.id, drm_get_encoder_name(encoder),
6694 mode->base.id, mode->name);
6695 encoder_funcs = encoder->helper_private;
6696 encoder_funcs->mode_set(encoder, mode, adjusted_mode);
6699 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
6700 dev_priv->display.crtc_enable(crtc);
6702 /* Store real post-adjustment hardware mode. */
6703 crtc->hwmode = *adjusted_mode;
6705 /* Calculate and store various constants which
6706 * are later needed by vblank and swap-completion
6707 * timestamping. They are derived from true hwmode.
6709 drm_calc_timestamping_constants(crtc);
6711 /* FIXME: add subpixel order */
6713 drm_mode_destroy(dev, adjusted_mode);
6715 crtc->hwmode = saved_hwmode;
6716 crtc->mode = saved_mode;
6724 static void intel_set_config_free(struct intel_set_config *config)
6729 kfree(config->save_connector_encoders);
6730 kfree(config->save_encoder_crtcs);
6731 kfree(config->save_crtcs);
6735 static int intel_set_config_save_state(struct drm_device *dev,
6736 struct intel_set_config *config)
6738 struct drm_crtc *crtc;
6739 struct drm_encoder *encoder;
6740 struct drm_connector *connector;
6743 /* Allocate space for the backup of all (non-pointer) crtc, encoder and
6744 * connector data. */
6745 config->save_crtcs = kcalloc(dev->mode_config.num_crtc,
6746 sizeof(struct drm_crtc), GFP_KERNEL);
6747 if (!config->save_crtcs)
6750 config->save_encoder_crtcs =
6751 kcalloc(dev->mode_config.num_encoder,
6752 sizeof(struct drm_crtc *), GFP_KERNEL);
6753 if (!config->save_encoder_crtcs)
6756 config->save_connector_encoders =
6757 kcalloc(dev->mode_config.num_connector,
6758 sizeof(struct drm_encoder *), GFP_KERNEL);
6759 if (!config->save_connector_encoders)
6762 /* Copy data. Note that driver private data is not affected.
6763 * Should anything bad happen only the expected state is
6764 * restored, not the drivers personal bookkeeping.
6767 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
6768 config->save_crtcs[count++] = *crtc;
6772 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
6773 config->save_encoder_crtcs[count++] = encoder->crtc;
6777 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
6778 config->save_connector_encoders[count++] = connector->encoder;
6784 static void intel_set_config_restore_state(struct drm_device *dev,
6785 struct intel_set_config *config)
6787 struct drm_crtc *crtc;
6788 struct drm_encoder *encoder;
6789 struct drm_connector *connector;
6793 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
6794 *crtc = config->save_crtcs[count++];
6798 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
6799 encoder->crtc = config->save_encoder_crtcs[count++];
6803 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
6804 connector->encoder = config->save_connector_encoders[count++];
6809 intel_set_config_compute_mode_changes(struct drm_mode_set *set,
6810 struct intel_set_config *config)
6813 /* We should be able to check here if the fb has the same properties
6814 * and then just flip_or_move it */
6815 if (set->crtc->fb != set->fb) {
6816 /* If we have no fb then treat it as a full mode set */
6817 if (set->crtc->fb == NULL) {
6818 DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
6819 config->mode_changed = true;
6820 } else if (set->fb == NULL) {
6821 config->mode_changed = true;
6822 } else if (set->fb->depth != set->crtc->fb->depth) {
6823 config->mode_changed = true;
6824 } else if (set->fb->bits_per_pixel !=
6825 set->crtc->fb->bits_per_pixel) {
6826 config->mode_changed = true;
6828 config->fb_changed = true;
6831 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
6832 config->fb_changed = true;
6834 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
6835 DRM_DEBUG_KMS("modes are different, full mode set\n");
6836 drm_mode_debug_printmodeline(&set->crtc->mode);
6837 drm_mode_debug_printmodeline(set->mode);
6838 config->mode_changed = true;
6843 intel_set_config_update_output_state(struct drm_device *dev,
6844 struct drm_mode_set *set,
6845 struct intel_set_config *config)
6847 struct drm_crtc *new_crtc;
6848 struct drm_encoder *new_encoder;
6849 struct drm_connector *connector;
6852 /* a) traverse passed in connector list and get encoders for them */
6854 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
6855 new_encoder = connector->encoder;
6856 for (ro = 0; ro < set->num_connectors; ro++) {
6857 if (set->connectors[ro] == connector) {
6859 &intel_attached_encoder(connector)->base;
6864 if (new_encoder != connector->encoder) {
6865 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
6866 config->mode_changed = true;
6867 /* If the encoder is reused for another connector, then
6868 * the appropriate crtc will be set later.
6870 if (connector->encoder)
6871 connector->encoder->crtc = NULL;
6872 connector->encoder = new_encoder;
6877 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
6878 if (!connector->encoder)
6881 if (connector->encoder->crtc == set->crtc)
6884 new_crtc = connector->encoder->crtc;
6886 for (ro = 0; ro < set->num_connectors; ro++) {
6887 if (set->connectors[ro] == connector)
6888 new_crtc = set->crtc;
6891 /* Make sure the new CRTC will work with the encoder */
6893 !intel_encoder_crtc_ok(connector->encoder, new_crtc)) {
6896 if (new_crtc != connector->encoder->crtc) {
6897 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
6898 config->mode_changed = true;
6899 connector->encoder->crtc = new_crtc;
6902 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
6903 connector->base.id, drm_get_connector_name(connector),
6906 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
6907 connector->base.id, drm_get_connector_name(connector));
6914 static int intel_crtc_set_config(struct drm_mode_set *set)
6916 struct drm_device *dev;
6917 struct drm_framebuffer *old_fb = NULL;
6918 struct drm_mode_set save_set;
6919 struct intel_set_config *config;
6925 BUG_ON(!set->crtc->helper_private);
6930 /* The fb helper likes to play gross jokes with ->mode_set_config.
6931 * Unfortunately the crtc helper doesn't do much at all for this case,
6932 * so we have to cope with this madness until the fb helper is fixed up. */
6933 if (set->fb && set->num_connectors == 0)
6937 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
6938 set->crtc->base.id, set->fb->base.id,
6939 (int)set->num_connectors, set->x, set->y);
6941 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
6942 return intel_crtc_helper_disable(set->crtc);
6945 dev = set->crtc->dev;
6948 config = kzalloc(sizeof(*config), GFP_KERNEL);
6952 ret = intel_set_config_save_state(dev, config);
6956 save_set.crtc = set->crtc;
6957 save_set.mode = &set->crtc->mode;
6958 save_set.x = set->crtc->x;
6959 save_set.y = set->crtc->y;
6960 save_set.fb = set->crtc->fb;
6962 /* Compute whether we need a full modeset, only an fb base update or no
6963 * change at all. In the future we might also check whether only the
6964 * mode changed, e.g. for LVDS where we only change the panel fitter in
6966 intel_set_config_compute_mode_changes(set, config);
6968 ret = intel_set_config_update_output_state(dev, set, config);
6972 if (config->mode_changed) {
6973 set->crtc->enabled = drm_helper_crtc_in_use(set->crtc);
6974 if (set->crtc->enabled) {
6975 DRM_DEBUG_KMS("attempting to set mode from"
6977 drm_mode_debug_printmodeline(set->mode);
6978 old_fb = set->crtc->fb;
6979 set->crtc->fb = set->fb;
6980 if (!intel_set_mode(set->crtc, set->mode,
6981 set->x, set->y, old_fb)) {
6982 DRM_ERROR("failed to set mode on [CRTC:%d]\n",
6983 set->crtc->base.id);
6984 set->crtc->fb = old_fb;
6988 DRM_DEBUG_KMS("Setting connector DPMS state to on\n");
6989 for (i = 0; i < set->num_connectors; i++) {
6990 DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id,
6991 drm_get_connector_name(set->connectors[i]));
6992 set->connectors[i]->funcs->dpms(set->connectors[i], DRM_MODE_DPMS_ON);
6995 drm_helper_disable_unused_functions(dev);
6996 } else if (config->fb_changed) {
6997 set->crtc->x = set->x;
6998 set->crtc->y = set->y;
7000 old_fb = set->crtc->fb;
7001 if (set->crtc->fb != set->fb)
7002 set->crtc->fb = set->fb;
7003 ret = intel_pipe_set_base(set->crtc,
7004 set->x, set->y, old_fb);
7006 set->crtc->fb = old_fb;
7011 intel_set_config_free(config);
7016 intel_set_config_restore_state(dev, config);
7018 /* Try to restore the config */
7019 if (config->mode_changed &&
7020 !intel_set_mode(save_set.crtc, save_set.mode,
7021 save_set.x, save_set.y, save_set.fb))
7022 DRM_ERROR("failed to restore config after modeset failure\n");
7025 intel_set_config_free(config);
7029 static const struct drm_crtc_funcs intel_crtc_funcs = {
7030 .cursor_set = intel_crtc_cursor_set,
7031 .cursor_move = intel_crtc_cursor_move,
7032 .gamma_set = intel_crtc_gamma_set,
7033 .set_config = intel_crtc_set_config,
7034 .destroy = intel_crtc_destroy,
7035 .page_flip = intel_crtc_page_flip,
7038 static void intel_pch_pll_init(struct drm_device *dev)
7040 drm_i915_private_t *dev_priv = dev->dev_private;
7043 if (dev_priv->num_pch_pll == 0) {
7044 DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n");
7048 for (i = 0; i < dev_priv->num_pch_pll; i++) {
7049 dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i);
7050 dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i);
7051 dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i);
7055 static void intel_crtc_init(struct drm_device *dev, int pipe)
7057 drm_i915_private_t *dev_priv = dev->dev_private;
7058 struct intel_crtc *intel_crtc;
7061 intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
7062 if (intel_crtc == NULL)
7065 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
7067 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
7068 for (i = 0; i < 256; i++) {
7069 intel_crtc->lut_r[i] = i;
7070 intel_crtc->lut_g[i] = i;
7071 intel_crtc->lut_b[i] = i;
7074 /* Swap pipes & planes for FBC on pre-965 */
7075 intel_crtc->pipe = pipe;
7076 intel_crtc->plane = pipe;
7077 if (IS_MOBILE(dev) && IS_GEN3(dev)) {
7078 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
7079 intel_crtc->plane = !pipe;
7082 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
7083 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
7084 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
7085 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
7087 intel_crtc->bpp = 24; /* default for pre-Ironlake */
7089 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
7092 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
7093 struct drm_file *file)
7095 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
7096 struct drm_mode_object *drmmode_obj;
7097 struct intel_crtc *crtc;
7099 if (!drm_core_check_feature(dev, DRIVER_MODESET))
7102 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
7103 DRM_MODE_OBJECT_CRTC);
7106 DRM_ERROR("no such CRTC id\n");
7110 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
7111 pipe_from_crtc_id->pipe = crtc->pipe;
7116 static int intel_encoder_clones(struct intel_encoder *encoder)
7118 struct drm_device *dev = encoder->base.dev;
7119 struct intel_encoder *source_encoder;
7123 list_for_each_entry(source_encoder,
7124 &dev->mode_config.encoder_list, base.head) {
7126 if (encoder == source_encoder)
7127 index_mask |= (1 << entry);
7129 /* Intel hw has only one MUX where enocoders could be cloned. */
7130 if (encoder->cloneable && source_encoder->cloneable)
7131 index_mask |= (1 << entry);
7139 static bool has_edp_a(struct drm_device *dev)
7141 struct drm_i915_private *dev_priv = dev->dev_private;
7143 if (!IS_MOBILE(dev))
7146 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
7150 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
7156 static void intel_setup_outputs(struct drm_device *dev)
7158 struct drm_i915_private *dev_priv = dev->dev_private;
7159 struct intel_encoder *encoder;
7160 bool dpd_is_edp = false;
7163 has_lvds = intel_lvds_init(dev);
7164 if (!has_lvds && !HAS_PCH_SPLIT(dev)) {
7165 /* disable the panel fitter on everything but LVDS */
7166 I915_WRITE(PFIT_CONTROL, 0);
7169 if (HAS_PCH_SPLIT(dev)) {
7170 dpd_is_edp = intel_dpd_is_edp(dev);
7173 intel_dp_init(dev, DP_A, PORT_A);
7175 if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED))
7176 intel_dp_init(dev, PCH_DP_D, PORT_D);
7179 intel_crt_init(dev);
7181 if (IS_HASWELL(dev)) {
7184 /* Haswell uses DDI functions to detect digital outputs */
7185 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
7186 /* DDI A only supports eDP */
7188 intel_ddi_init(dev, PORT_A);
7190 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
7192 found = I915_READ(SFUSE_STRAP);
7194 if (found & SFUSE_STRAP_DDIB_DETECTED)
7195 intel_ddi_init(dev, PORT_B);
7196 if (found & SFUSE_STRAP_DDIC_DETECTED)
7197 intel_ddi_init(dev, PORT_C);
7198 if (found & SFUSE_STRAP_DDID_DETECTED)
7199 intel_ddi_init(dev, PORT_D);
7200 } else if (HAS_PCH_SPLIT(dev)) {
7203 if (I915_READ(HDMIB) & PORT_DETECTED) {
7204 /* PCH SDVOB multiplex with HDMIB */
7205 found = intel_sdvo_init(dev, PCH_SDVOB, true);
7207 intel_hdmi_init(dev, HDMIB, PORT_B);
7208 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
7209 intel_dp_init(dev, PCH_DP_B, PORT_B);
7212 if (I915_READ(HDMIC) & PORT_DETECTED)
7213 intel_hdmi_init(dev, HDMIC, PORT_C);
7215 if (!dpd_is_edp && I915_READ(HDMID) & PORT_DETECTED)
7216 intel_hdmi_init(dev, HDMID, PORT_D);
7218 if (I915_READ(PCH_DP_C) & DP_DETECTED)
7219 intel_dp_init(dev, PCH_DP_C, PORT_C);
7221 if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED))
7222 intel_dp_init(dev, PCH_DP_D, PORT_D);
7223 } else if (IS_VALLEYVIEW(dev)) {
7226 if (I915_READ(SDVOB) & PORT_DETECTED) {
7227 /* SDVOB multiplex with HDMIB */
7228 found = intel_sdvo_init(dev, SDVOB, true);
7230 intel_hdmi_init(dev, SDVOB, PORT_B);
7231 if (!found && (I915_READ(DP_B) & DP_DETECTED))
7232 intel_dp_init(dev, DP_B, PORT_B);
7235 if (I915_READ(SDVOC) & PORT_DETECTED)
7236 intel_hdmi_init(dev, SDVOC, PORT_C);
7238 /* Shares lanes with HDMI on SDVOC */
7239 if (I915_READ(DP_C) & DP_DETECTED)
7240 intel_dp_init(dev, DP_C, PORT_C);
7241 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
7244 if (I915_READ(SDVOB) & SDVO_DETECTED) {
7245 DRM_DEBUG_KMS("probing SDVOB\n");
7246 found = intel_sdvo_init(dev, SDVOB, true);
7247 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
7248 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
7249 intel_hdmi_init(dev, SDVOB, PORT_B);
7252 if (!found && SUPPORTS_INTEGRATED_DP(dev)) {
7253 DRM_DEBUG_KMS("probing DP_B\n");
7254 intel_dp_init(dev, DP_B, PORT_B);
7258 /* Before G4X SDVOC doesn't have its own detect register */
7260 if (I915_READ(SDVOB) & SDVO_DETECTED) {
7261 DRM_DEBUG_KMS("probing SDVOC\n");
7262 found = intel_sdvo_init(dev, SDVOC, false);
7265 if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) {
7267 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
7268 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
7269 intel_hdmi_init(dev, SDVOC, PORT_C);
7271 if (SUPPORTS_INTEGRATED_DP(dev)) {
7272 DRM_DEBUG_KMS("probing DP_C\n");
7273 intel_dp_init(dev, DP_C, PORT_C);
7277 if (SUPPORTS_INTEGRATED_DP(dev) &&
7278 (I915_READ(DP_D) & DP_DETECTED)) {
7279 DRM_DEBUG_KMS("probing DP_D\n");
7280 intel_dp_init(dev, DP_D, PORT_D);
7282 } else if (IS_GEN2(dev))
7283 intel_dvo_init(dev);
7285 if (SUPPORTS_TV(dev))
7288 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
7289 encoder->base.possible_crtcs = encoder->crtc_mask;
7290 encoder->base.possible_clones =
7291 intel_encoder_clones(encoder);
7294 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
7295 ironlake_init_pch_refclk(dev);
7298 static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
7300 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
7302 drm_framebuffer_cleanup(fb);
7303 drm_gem_object_unreference_unlocked(&intel_fb->obj->base);
7308 static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
7309 struct drm_file *file,
7310 unsigned int *handle)
7312 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
7313 struct drm_i915_gem_object *obj = intel_fb->obj;
7315 return drm_gem_handle_create(file, &obj->base, handle);
7318 static const struct drm_framebuffer_funcs intel_fb_funcs = {
7319 .destroy = intel_user_framebuffer_destroy,
7320 .create_handle = intel_user_framebuffer_create_handle,
7323 int intel_framebuffer_init(struct drm_device *dev,
7324 struct intel_framebuffer *intel_fb,
7325 struct drm_mode_fb_cmd2 *mode_cmd,
7326 struct drm_i915_gem_object *obj)
7330 if (obj->tiling_mode == I915_TILING_Y)
7333 if (mode_cmd->pitches[0] & 63)
7336 switch (mode_cmd->pixel_format) {
7337 case DRM_FORMAT_RGB332:
7338 case DRM_FORMAT_RGB565:
7339 case DRM_FORMAT_XRGB8888:
7340 case DRM_FORMAT_XBGR8888:
7341 case DRM_FORMAT_ARGB8888:
7342 case DRM_FORMAT_XRGB2101010:
7343 case DRM_FORMAT_ARGB2101010:
7344 /* RGB formats are common across chipsets */
7346 case DRM_FORMAT_YUYV:
7347 case DRM_FORMAT_UYVY:
7348 case DRM_FORMAT_YVYU:
7349 case DRM_FORMAT_VYUY:
7352 DRM_DEBUG_KMS("unsupported pixel format %u\n",
7353 mode_cmd->pixel_format);
7357 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
7359 DRM_ERROR("framebuffer init failed %d\n", ret);
7363 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
7364 intel_fb->obj = obj;
7368 static struct drm_framebuffer *
7369 intel_user_framebuffer_create(struct drm_device *dev,
7370 struct drm_file *filp,
7371 struct drm_mode_fb_cmd2 *mode_cmd)
7373 struct drm_i915_gem_object *obj;
7375 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
7376 mode_cmd->handles[0]));
7377 if (&obj->base == NULL)
7378 return ERR_PTR(-ENOENT);
7380 return intel_framebuffer_create(dev, mode_cmd, obj);
7383 static const struct drm_mode_config_funcs intel_mode_funcs = {
7384 .fb_create = intel_user_framebuffer_create,
7385 .output_poll_changed = intel_fb_output_poll_changed,
7388 /* Set up chip specific display functions */
7389 static void intel_init_display(struct drm_device *dev)
7391 struct drm_i915_private *dev_priv = dev->dev_private;
7393 /* We always want a DPMS function */
7394 if (HAS_PCH_SPLIT(dev)) {
7395 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
7396 dev_priv->display.crtc_enable = ironlake_crtc_enable;
7397 dev_priv->display.crtc_disable = ironlake_crtc_disable;
7398 dev_priv->display.off = ironlake_crtc_off;
7399 dev_priv->display.update_plane = ironlake_update_plane;
7401 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
7402 dev_priv->display.crtc_enable = i9xx_crtc_enable;
7403 dev_priv->display.crtc_disable = i9xx_crtc_disable;
7404 dev_priv->display.off = i9xx_crtc_off;
7405 dev_priv->display.update_plane = i9xx_update_plane;
7408 /* Returns the core display clock speed */
7409 if (IS_VALLEYVIEW(dev))
7410 dev_priv->display.get_display_clock_speed =
7411 valleyview_get_display_clock_speed;
7412 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
7413 dev_priv->display.get_display_clock_speed =
7414 i945_get_display_clock_speed;
7415 else if (IS_I915G(dev))
7416 dev_priv->display.get_display_clock_speed =
7417 i915_get_display_clock_speed;
7418 else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev))
7419 dev_priv->display.get_display_clock_speed =
7420 i9xx_misc_get_display_clock_speed;
7421 else if (IS_I915GM(dev))
7422 dev_priv->display.get_display_clock_speed =
7423 i915gm_get_display_clock_speed;
7424 else if (IS_I865G(dev))
7425 dev_priv->display.get_display_clock_speed =
7426 i865_get_display_clock_speed;
7427 else if (IS_I85X(dev))
7428 dev_priv->display.get_display_clock_speed =
7429 i855_get_display_clock_speed;
7431 dev_priv->display.get_display_clock_speed =
7432 i830_get_display_clock_speed;
7434 if (HAS_PCH_SPLIT(dev)) {
7436 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
7437 dev_priv->display.write_eld = ironlake_write_eld;
7438 } else if (IS_GEN6(dev)) {
7439 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
7440 dev_priv->display.write_eld = ironlake_write_eld;
7441 } else if (IS_IVYBRIDGE(dev)) {
7442 /* FIXME: detect B0+ stepping and use auto training */
7443 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
7444 dev_priv->display.write_eld = ironlake_write_eld;
7445 } else if (IS_HASWELL(dev)) {
7446 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
7447 dev_priv->display.write_eld = haswell_write_eld;
7449 dev_priv->display.update_wm = NULL;
7450 } else if (IS_G4X(dev)) {
7451 dev_priv->display.write_eld = g4x_write_eld;
7454 /* Default just returns -ENODEV to indicate unsupported */
7455 dev_priv->display.queue_flip = intel_default_queue_flip;
7457 switch (INTEL_INFO(dev)->gen) {
7459 dev_priv->display.queue_flip = intel_gen2_queue_flip;
7463 dev_priv->display.queue_flip = intel_gen3_queue_flip;
7468 dev_priv->display.queue_flip = intel_gen4_queue_flip;
7472 dev_priv->display.queue_flip = intel_gen6_queue_flip;
7475 dev_priv->display.queue_flip = intel_gen7_queue_flip;
7481 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
7482 * resume, or other times. This quirk makes sure that's the case for
7485 static void quirk_pipea_force(struct drm_device *dev)
7487 struct drm_i915_private *dev_priv = dev->dev_private;
7489 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
7490 DRM_INFO("applying pipe a force quirk\n");
7494 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
7496 static void quirk_ssc_force_disable(struct drm_device *dev)
7498 struct drm_i915_private *dev_priv = dev->dev_private;
7499 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
7500 DRM_INFO("applying lvds SSC disable quirk\n");
7504 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
7507 static void quirk_invert_brightness(struct drm_device *dev)
7509 struct drm_i915_private *dev_priv = dev->dev_private;
7510 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
7511 DRM_INFO("applying inverted panel brightness quirk\n");
7514 struct intel_quirk {
7516 int subsystem_vendor;
7517 int subsystem_device;
7518 void (*hook)(struct drm_device *dev);
7521 static struct intel_quirk intel_quirks[] = {
7522 /* HP Mini needs pipe A force quirk (LP: #322104) */
7523 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
7525 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
7526 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
7528 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
7529 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
7531 /* 855 & before need to leave pipe A & dpll A up */
7532 { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
7533 { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
7534 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
7536 /* Lenovo U160 cannot use SSC on LVDS */
7537 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
7539 /* Sony Vaio Y cannot use SSC on LVDS */
7540 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
7542 /* Acer Aspire 5734Z must invert backlight brightness */
7543 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
7546 static void intel_init_quirks(struct drm_device *dev)
7548 struct pci_dev *d = dev->pdev;
7551 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
7552 struct intel_quirk *q = &intel_quirks[i];
7554 if (d->device == q->device &&
7555 (d->subsystem_vendor == q->subsystem_vendor ||
7556 q->subsystem_vendor == PCI_ANY_ID) &&
7557 (d->subsystem_device == q->subsystem_device ||
7558 q->subsystem_device == PCI_ANY_ID))
7563 /* Disable the VGA plane that we never use */
7564 static void i915_disable_vga(struct drm_device *dev)
7566 struct drm_i915_private *dev_priv = dev->dev_private;
7570 if (HAS_PCH_SPLIT(dev))
7571 vga_reg = CPU_VGACNTRL;
7575 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
7576 outb(SR01, VGA_SR_INDEX);
7577 sr1 = inb(VGA_SR_DATA);
7578 outb(sr1 | 1<<5, VGA_SR_DATA);
7579 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
7582 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
7583 POSTING_READ(vga_reg);
7586 void intel_modeset_init_hw(struct drm_device *dev)
7588 /* We attempt to init the necessary power wells early in the initialization
7589 * time, so the subsystems that expect power to be enabled can work.
7591 intel_init_power_wells(dev);
7593 intel_prepare_ddi(dev);
7595 intel_init_clock_gating(dev);
7597 mutex_lock(&dev->struct_mutex);
7598 intel_enable_gt_powersave(dev);
7599 mutex_unlock(&dev->struct_mutex);
7602 void intel_modeset_init(struct drm_device *dev)
7604 struct drm_i915_private *dev_priv = dev->dev_private;
7607 drm_mode_config_init(dev);
7609 dev->mode_config.min_width = 0;
7610 dev->mode_config.min_height = 0;
7612 dev->mode_config.preferred_depth = 24;
7613 dev->mode_config.prefer_shadow = 1;
7615 dev->mode_config.funcs = &intel_mode_funcs;
7617 intel_init_quirks(dev);
7621 intel_init_display(dev);
7624 dev->mode_config.max_width = 2048;
7625 dev->mode_config.max_height = 2048;
7626 } else if (IS_GEN3(dev)) {
7627 dev->mode_config.max_width = 4096;
7628 dev->mode_config.max_height = 4096;
7630 dev->mode_config.max_width = 8192;
7631 dev->mode_config.max_height = 8192;
7633 dev->mode_config.fb_base = dev_priv->mm.gtt_base_addr;
7635 DRM_DEBUG_KMS("%d display pipe%s available.\n",
7636 dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : "");
7638 for (i = 0; i < dev_priv->num_pipe; i++) {
7639 intel_crtc_init(dev, i);
7640 ret = intel_plane_init(dev, i);
7642 DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret);
7645 intel_pch_pll_init(dev);
7647 /* Just disable it once at startup */
7648 i915_disable_vga(dev);
7649 intel_setup_outputs(dev);
7653 intel_connector_break_all_links(struct intel_connector *connector)
7655 connector->base.dpms = DRM_MODE_DPMS_OFF;
7656 connector->base.encoder = NULL;
7657 connector->encoder->connectors_active = false;
7658 connector->encoder->base.crtc = NULL;
7661 static void intel_enable_pipe_a(struct drm_device *dev)
7663 struct intel_connector *connector;
7664 struct drm_connector *crt = NULL;
7665 struct intel_load_detect_pipe load_detect_temp;
7667 /* We can't just switch on the pipe A, we need to set things up with a
7668 * proper mode and output configuration. As a gross hack, enable pipe A
7669 * by enabling the load detect pipe once. */
7670 list_for_each_entry(connector,
7671 &dev->mode_config.connector_list,
7673 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
7674 crt = &connector->base;
7682 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
7683 intel_release_load_detect_pipe(crt, &load_detect_temp);
7688 static void intel_sanitize_crtc(struct intel_crtc *crtc)
7690 struct drm_device *dev = crtc->base.dev;
7691 struct drm_i915_private *dev_priv = dev->dev_private;
7694 /* Clear any frame start delays used for debugging left by the BIOS */
7695 reg = PIPECONF(crtc->pipe);
7696 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
7698 /* We need to sanitize the plane -> pipe mapping first because this will
7699 * disable the crtc (and hence change the state) if it is wrong. */
7700 if (!HAS_PCH_SPLIT(dev)) {
7701 struct intel_connector *connector;
7704 reg = DSPCNTR(crtc->plane);
7705 val = I915_READ(reg);
7707 if ((val & DISPLAY_PLANE_ENABLE) == 0 &&
7708 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
7711 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
7712 crtc->base.base.id);
7714 /* Pipe has the wrong plane attached and the plane is active.
7715 * Temporarily change the plane mapping and disable everything
7717 plane = crtc->plane;
7718 crtc->plane = !plane;
7719 dev_priv->display.crtc_disable(&crtc->base);
7720 crtc->plane = plane;
7722 /* ... and break all links. */
7723 list_for_each_entry(connector, &dev->mode_config.connector_list,
7725 if (connector->encoder->base.crtc != &crtc->base)
7728 intel_connector_break_all_links(connector);
7731 WARN_ON(crtc->active);
7732 crtc->base.enabled = false;
7736 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
7737 crtc->pipe == PIPE_A && !crtc->active) {
7738 /* BIOS forgot to enable pipe A, this mostly happens after
7739 * resume. Force-enable the pipe to fix this, the update_dpms
7740 * call below we restore the pipe to the right state, but leave
7741 * the required bits on. */
7742 intel_enable_pipe_a(dev);
7745 /* Adjust the state of the output pipe according to whether we
7746 * have active connectors/encoders. */
7747 intel_crtc_update_dpms(&crtc->base);
7749 if (crtc->active != crtc->base.enabled) {
7750 struct intel_encoder *encoder;
7752 /* This can happen either due to bugs in the get_hw_state
7753 * functions or because the pipe is force-enabled due to the
7755 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
7757 crtc->base.enabled ? "enabled" : "disabled",
7758 crtc->active ? "enabled" : "disabled");
7760 crtc->base.enabled = crtc->active;
7762 /* Because we only establish the connector -> encoder ->
7763 * crtc links if something is active, this means the
7764 * crtc is now deactivated. Break the links. connector
7765 * -> encoder links are only establish when things are
7766 * actually up, hence no need to break them. */
7767 WARN_ON(crtc->active);
7769 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
7770 WARN_ON(encoder->connectors_active);
7771 encoder->base.crtc = NULL;
7776 static void intel_sanitize_encoder(struct intel_encoder *encoder)
7778 struct intel_connector *connector;
7779 struct drm_device *dev = encoder->base.dev;
7781 /* We need to check both for a crtc link (meaning that the
7782 * encoder is active and trying to read from a pipe) and the
7783 * pipe itself being active. */
7784 bool has_active_crtc = encoder->base.crtc &&
7785 to_intel_crtc(encoder->base.crtc)->active;
7787 if (encoder->connectors_active && !has_active_crtc) {
7788 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
7789 encoder->base.base.id,
7790 drm_get_encoder_name(&encoder->base));
7792 /* Connector is active, but has no active pipe. This is
7793 * fallout from our resume register restoring. Disable
7794 * the encoder manually again. */
7795 if (encoder->base.crtc) {
7796 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
7797 encoder->base.base.id,
7798 drm_get_encoder_name(&encoder->base));
7799 encoder->disable(encoder);
7802 /* Inconsistent output/port/pipe state happens presumably due to
7803 * a bug in one of the get_hw_state functions. Or someplace else
7804 * in our code, like the register restore mess on resume. Clamp
7805 * things to off as a safer default. */
7806 list_for_each_entry(connector,
7807 &dev->mode_config.connector_list,
7809 if (connector->encoder != encoder)
7812 intel_connector_break_all_links(connector);
7815 /* Enabled encoders without active connectors will be fixed in
7816 * the crtc fixup. */
7819 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
7820 * and i915 state tracking structures. */
7821 void intel_modeset_setup_hw_state(struct drm_device *dev)
7823 struct drm_i915_private *dev_priv = dev->dev_private;
7826 struct intel_crtc *crtc;
7827 struct intel_encoder *encoder;
7828 struct intel_connector *connector;
7830 for_each_pipe(pipe) {
7831 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
7833 tmp = I915_READ(PIPECONF(pipe));
7834 if (tmp & PIPECONF_ENABLE)
7835 crtc->active = true;
7837 crtc->active = false;
7839 crtc->base.enabled = crtc->active;
7841 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
7843 crtc->active ? "enabled" : "disabled");
7846 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7850 if (encoder->get_hw_state(encoder, &pipe)) {
7851 encoder->base.crtc =
7852 dev_priv->pipe_to_crtc_mapping[pipe];
7854 encoder->base.crtc = NULL;
7857 encoder->connectors_active = false;
7858 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
7859 encoder->base.base.id,
7860 drm_get_encoder_name(&encoder->base),
7861 encoder->base.crtc ? "enabled" : "disabled",
7865 list_for_each_entry(connector, &dev->mode_config.connector_list,
7867 if (connector->get_hw_state(connector)) {
7868 connector->base.dpms = DRM_MODE_DPMS_ON;
7869 connector->encoder->connectors_active = true;
7870 connector->base.encoder = &connector->encoder->base;
7872 connector->base.dpms = DRM_MODE_DPMS_OFF;
7873 connector->base.encoder = NULL;
7875 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
7876 connector->base.base.id,
7877 drm_get_connector_name(&connector->base),
7878 connector->base.encoder ? "enabled" : "disabled");
7881 /* HW state is read out, now we need to sanitize this mess. */
7882 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7884 intel_sanitize_encoder(encoder);
7887 for_each_pipe(pipe) {
7888 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
7889 intel_sanitize_crtc(crtc);
7893 void intel_modeset_gem_init(struct drm_device *dev)
7895 intel_modeset_init_hw(dev);
7897 intel_setup_overlay(dev);
7899 intel_modeset_setup_hw_state(dev);
7902 void intel_modeset_cleanup(struct drm_device *dev)
7904 struct drm_i915_private *dev_priv = dev->dev_private;
7905 struct drm_crtc *crtc;
7906 struct intel_crtc *intel_crtc;
7908 drm_kms_helper_poll_fini(dev);
7909 mutex_lock(&dev->struct_mutex);
7911 intel_unregister_dsm_handler();
7914 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7915 /* Skip inactive CRTCs */
7919 intel_crtc = to_intel_crtc(crtc);
7920 intel_increase_pllclock(crtc);
7923 intel_disable_fbc(dev);
7925 intel_disable_gt_powersave(dev);
7927 ironlake_teardown_rc6(dev);
7929 if (IS_VALLEYVIEW(dev))
7932 mutex_unlock(&dev->struct_mutex);
7934 /* Disable the irq before mode object teardown, for the irq might
7935 * enqueue unpin/hotplug work. */
7936 drm_irq_uninstall(dev);
7937 cancel_work_sync(&dev_priv->hotplug_work);
7938 cancel_work_sync(&dev_priv->rps.work);
7940 /* flush any delayed tasks or pending work */
7941 flush_scheduled_work();
7943 drm_mode_config_cleanup(dev);
7947 * Return which encoder is currently attached for connector.
7949 struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
7951 return &intel_attached_encoder(connector)->base;
7954 void intel_connector_attach_encoder(struct intel_connector *connector,
7955 struct intel_encoder *encoder)
7957 connector->encoder = encoder;
7958 drm_mode_connector_attach_encoder(&connector->base,
7963 * set vga decode state - true == enable VGA decode
7965 int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
7967 struct drm_i915_private *dev_priv = dev->dev_private;
7970 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
7972 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
7974 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
7975 pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
7979 #ifdef CONFIG_DEBUG_FS
7980 #include <linux/seq_file.h>
7982 struct intel_display_error_state {
7983 struct intel_cursor_error_state {
7988 } cursor[I915_MAX_PIPES];
7990 struct intel_pipe_error_state {
8000 } pipe[I915_MAX_PIPES];
8002 struct intel_plane_error_state {
8010 } plane[I915_MAX_PIPES];
8013 struct intel_display_error_state *
8014 intel_display_capture_error_state(struct drm_device *dev)
8016 drm_i915_private_t *dev_priv = dev->dev_private;
8017 struct intel_display_error_state *error;
8020 error = kmalloc(sizeof(*error), GFP_ATOMIC);
8025 error->cursor[i].control = I915_READ(CURCNTR(i));
8026 error->cursor[i].position = I915_READ(CURPOS(i));
8027 error->cursor[i].base = I915_READ(CURBASE(i));
8029 error->plane[i].control = I915_READ(DSPCNTR(i));
8030 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
8031 error->plane[i].size = I915_READ(DSPSIZE(i));
8032 error->plane[i].pos = I915_READ(DSPPOS(i));
8033 error->plane[i].addr = I915_READ(DSPADDR(i));
8034 if (INTEL_INFO(dev)->gen >= 4) {
8035 error->plane[i].surface = I915_READ(DSPSURF(i));
8036 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
8039 error->pipe[i].conf = I915_READ(PIPECONF(i));
8040 error->pipe[i].source = I915_READ(PIPESRC(i));
8041 error->pipe[i].htotal = I915_READ(HTOTAL(i));
8042 error->pipe[i].hblank = I915_READ(HBLANK(i));
8043 error->pipe[i].hsync = I915_READ(HSYNC(i));
8044 error->pipe[i].vtotal = I915_READ(VTOTAL(i));
8045 error->pipe[i].vblank = I915_READ(VBLANK(i));
8046 error->pipe[i].vsync = I915_READ(VSYNC(i));
8053 intel_display_print_error_state(struct seq_file *m,
8054 struct drm_device *dev,
8055 struct intel_display_error_state *error)
8057 drm_i915_private_t *dev_priv = dev->dev_private;
8060 seq_printf(m, "Num Pipes: %d\n", dev_priv->num_pipe);
8062 seq_printf(m, "Pipe [%d]:\n", i);
8063 seq_printf(m, " CONF: %08x\n", error->pipe[i].conf);
8064 seq_printf(m, " SRC: %08x\n", error->pipe[i].source);
8065 seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal);
8066 seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank);
8067 seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync);
8068 seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal);
8069 seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank);
8070 seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync);
8072 seq_printf(m, "Plane [%d]:\n", i);
8073 seq_printf(m, " CNTR: %08x\n", error->plane[i].control);
8074 seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
8075 seq_printf(m, " SIZE: %08x\n", error->plane[i].size);
8076 seq_printf(m, " POS: %08x\n", error->plane[i].pos);
8077 seq_printf(m, " ADDR: %08x\n", error->plane[i].addr);
8078 if (INTEL_INFO(dev)->gen >= 4) {
8079 seq_printf(m, " SURF: %08x\n", error->plane[i].surface);
8080 seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
8083 seq_printf(m, "Cursor [%d]:\n", i);
8084 seq_printf(m, " CNTR: %08x\n", error->cursor[i].control);
8085 seq_printf(m, " POS: %08x\n", error->cursor[i].position);
8086 seq_printf(m, " BASE: %08x\n", error->cursor[i].base);