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 WARN(1, "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 WARN(1, "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
*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
);
2210 struct drm_framebuffer
*old_fb
;
2215 DRM_ERROR("No FB bound\n");
2219 if(intel_crtc
->plane
> dev_priv
->num_pipe
) {
2220 DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n",
2222 dev_priv
->num_pipe
);
2226 mutex_lock(&dev
->struct_mutex
);
2227 ret
= intel_pin_and_fence_fb_obj(dev
,
2228 to_intel_framebuffer(fb
)->obj
,
2231 mutex_unlock(&dev
->struct_mutex
);
2232 DRM_ERROR("pin & fence failed\n");
2237 intel_finish_fb(crtc
->fb
);
2239 ret
= dev_priv
->display
.update_plane(crtc
, fb
, x
, y
);
2241 intel_unpin_fb_obj(to_intel_framebuffer(fb
)->obj
);
2242 mutex_unlock(&dev
->struct_mutex
);
2243 DRM_ERROR("failed to update base address\n");
2253 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2254 intel_unpin_fb_obj(to_intel_framebuffer(old_fb
)->obj
);
2257 intel_update_fbc(dev
);
2258 mutex_unlock(&dev
->struct_mutex
);
2260 if (!dev
->primary
->master
)
2263 master_priv
= dev
->primary
->master
->driver_priv
;
2264 if (!master_priv
->sarea_priv
)
2267 if (intel_crtc
->pipe
) {
2268 master_priv
->sarea_priv
->pipeB_x
= x
;
2269 master_priv
->sarea_priv
->pipeB_y
= y
;
2271 master_priv
->sarea_priv
->pipeA_x
= x
;
2272 master_priv
->sarea_priv
->pipeA_y
= y
;
2278 static void ironlake_set_pll_edp(struct drm_crtc
*crtc
, int clock
)
2280 struct drm_device
*dev
= crtc
->dev
;
2281 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2284 DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock
);
2285 dpa_ctl
= I915_READ(DP_A
);
2286 dpa_ctl
&= ~DP_PLL_FREQ_MASK
;
2288 if (clock
< 200000) {
2290 dpa_ctl
|= DP_PLL_FREQ_160MHZ
;
2291 /* workaround for 160Mhz:
2292 1) program 0x4600c bits 15:0 = 0x8124
2293 2) program 0x46010 bit 0 = 1
2294 3) program 0x46034 bit 24 = 1
2295 4) program 0x64000 bit 14 = 1
2297 temp
= I915_READ(0x4600c);
2299 I915_WRITE(0x4600c, temp
| 0x8124);
2301 temp
= I915_READ(0x46010);
2302 I915_WRITE(0x46010, temp
| 1);
2304 temp
= I915_READ(0x46034);
2305 I915_WRITE(0x46034, temp
| (1 << 24));
2307 dpa_ctl
|= DP_PLL_FREQ_270MHZ
;
2309 I915_WRITE(DP_A
, dpa_ctl
);
2315 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
2317 struct drm_device
*dev
= crtc
->dev
;
2318 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2319 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2320 int pipe
= intel_crtc
->pipe
;
2323 /* enable normal train */
2324 reg
= FDI_TX_CTL(pipe
);
2325 temp
= I915_READ(reg
);
2326 if (IS_IVYBRIDGE(dev
)) {
2327 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2328 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2330 temp
&= ~FDI_LINK_TRAIN_NONE
;
2331 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2333 I915_WRITE(reg
, temp
);
2335 reg
= FDI_RX_CTL(pipe
);
2336 temp
= I915_READ(reg
);
2337 if (HAS_PCH_CPT(dev
)) {
2338 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2339 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
2341 temp
&= ~FDI_LINK_TRAIN_NONE
;
2342 temp
|= FDI_LINK_TRAIN_NONE
;
2344 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
2346 /* wait one idle pattern time */
2350 /* IVB wants error correction enabled */
2351 if (IS_IVYBRIDGE(dev
))
2352 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
2353 FDI_FE_ERRC_ENABLE
);
2356 static void cpt_phase_pointer_enable(struct drm_device
*dev
, int pipe
)
2358 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2359 u32 flags
= I915_READ(SOUTH_CHICKEN1
);
2361 flags
|= FDI_PHASE_SYNC_OVR(pipe
);
2362 I915_WRITE(SOUTH_CHICKEN1
, flags
); /* once to unlock... */
2363 flags
|= FDI_PHASE_SYNC_EN(pipe
);
2364 I915_WRITE(SOUTH_CHICKEN1
, flags
); /* then again to enable */
2365 POSTING_READ(SOUTH_CHICKEN1
);
2368 /* The FDI link training functions for ILK/Ibexpeak. */
2369 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
2371 struct drm_device
*dev
= crtc
->dev
;
2372 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2373 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2374 int pipe
= intel_crtc
->pipe
;
2375 int plane
= intel_crtc
->plane
;
2376 u32 reg
, temp
, tries
;
2378 /* FDI needs bits from pipe & plane first */
2379 assert_pipe_enabled(dev_priv
, pipe
);
2380 assert_plane_enabled(dev_priv
, plane
);
2382 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2384 reg
= FDI_RX_IMR(pipe
);
2385 temp
= I915_READ(reg
);
2386 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2387 temp
&= ~FDI_RX_BIT_LOCK
;
2388 I915_WRITE(reg
, temp
);
2392 /* enable CPU FDI TX and PCH FDI RX */
2393 reg
= FDI_TX_CTL(pipe
);
2394 temp
= I915_READ(reg
);
2396 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2397 temp
&= ~FDI_LINK_TRAIN_NONE
;
2398 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2399 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2401 reg
= FDI_RX_CTL(pipe
);
2402 temp
= I915_READ(reg
);
2403 temp
&= ~FDI_LINK_TRAIN_NONE
;
2404 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2405 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2410 /* Ironlake workaround, enable clock pointer after FDI enable*/
2411 if (HAS_PCH_IBX(dev
)) {
2412 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2413 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
2414 FDI_RX_PHASE_SYNC_POINTER_EN
);
2417 reg
= FDI_RX_IIR(pipe
);
2418 for (tries
= 0; tries
< 5; tries
++) {
2419 temp
= I915_READ(reg
);
2420 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2422 if ((temp
& FDI_RX_BIT_LOCK
)) {
2423 DRM_DEBUG_KMS("FDI train 1 done.\n");
2424 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2429 DRM_ERROR("FDI train 1 fail!\n");
2432 reg
= FDI_TX_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
);
2438 reg
= FDI_RX_CTL(pipe
);
2439 temp
= I915_READ(reg
);
2440 temp
&= ~FDI_LINK_TRAIN_NONE
;
2441 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2442 I915_WRITE(reg
, temp
);
2447 reg
= FDI_RX_IIR(pipe
);
2448 for (tries
= 0; tries
< 5; tries
++) {
2449 temp
= I915_READ(reg
);
2450 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2452 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2453 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2454 DRM_DEBUG_KMS("FDI train 2 done.\n");
2459 DRM_ERROR("FDI train 2 fail!\n");
2461 DRM_DEBUG_KMS("FDI train done\n");
2465 static const int snb_b_fdi_train_param
[] = {
2466 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
2467 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
2468 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
2469 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
2472 /* The FDI link training functions for SNB/Cougarpoint. */
2473 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
2475 struct drm_device
*dev
= crtc
->dev
;
2476 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2477 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2478 int pipe
= intel_crtc
->pipe
;
2479 u32 reg
, temp
, i
, retry
;
2481 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2483 reg
= FDI_RX_IMR(pipe
);
2484 temp
= I915_READ(reg
);
2485 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2486 temp
&= ~FDI_RX_BIT_LOCK
;
2487 I915_WRITE(reg
, temp
);
2492 /* enable CPU FDI TX and PCH FDI RX */
2493 reg
= FDI_TX_CTL(pipe
);
2494 temp
= I915_READ(reg
);
2496 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2497 temp
&= ~FDI_LINK_TRAIN_NONE
;
2498 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2499 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2501 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2502 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2504 reg
= FDI_RX_CTL(pipe
);
2505 temp
= I915_READ(reg
);
2506 if (HAS_PCH_CPT(dev
)) {
2507 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2508 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2510 temp
&= ~FDI_LINK_TRAIN_NONE
;
2511 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2513 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2518 if (HAS_PCH_CPT(dev
))
2519 cpt_phase_pointer_enable(dev
, pipe
);
2521 for (i
= 0; i
< 4; i
++) {
2522 reg
= FDI_TX_CTL(pipe
);
2523 temp
= I915_READ(reg
);
2524 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2525 temp
|= snb_b_fdi_train_param
[i
];
2526 I915_WRITE(reg
, temp
);
2531 for (retry
= 0; retry
< 5; retry
++) {
2532 reg
= FDI_RX_IIR(pipe
);
2533 temp
= I915_READ(reg
);
2534 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2535 if (temp
& FDI_RX_BIT_LOCK
) {
2536 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2537 DRM_DEBUG_KMS("FDI train 1 done.\n");
2546 DRM_ERROR("FDI train 1 fail!\n");
2549 reg
= FDI_TX_CTL(pipe
);
2550 temp
= I915_READ(reg
);
2551 temp
&= ~FDI_LINK_TRAIN_NONE
;
2552 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2554 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2556 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2558 I915_WRITE(reg
, temp
);
2560 reg
= FDI_RX_CTL(pipe
);
2561 temp
= I915_READ(reg
);
2562 if (HAS_PCH_CPT(dev
)) {
2563 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2564 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
2566 temp
&= ~FDI_LINK_TRAIN_NONE
;
2567 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2569 I915_WRITE(reg
, temp
);
2574 for (i
= 0; i
< 4; i
++) {
2575 reg
= FDI_TX_CTL(pipe
);
2576 temp
= I915_READ(reg
);
2577 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2578 temp
|= snb_b_fdi_train_param
[i
];
2579 I915_WRITE(reg
, temp
);
2584 for (retry
= 0; retry
< 5; retry
++) {
2585 reg
= FDI_RX_IIR(pipe
);
2586 temp
= I915_READ(reg
);
2587 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2588 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2589 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2590 DRM_DEBUG_KMS("FDI train 2 done.\n");
2599 DRM_ERROR("FDI train 2 fail!\n");
2601 DRM_DEBUG_KMS("FDI train done.\n");
2604 /* Manual link training for Ivy Bridge A0 parts */
2605 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
2607 struct drm_device
*dev
= crtc
->dev
;
2608 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2609 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2610 int pipe
= intel_crtc
->pipe
;
2613 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2615 reg
= FDI_RX_IMR(pipe
);
2616 temp
= I915_READ(reg
);
2617 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2618 temp
&= ~FDI_RX_BIT_LOCK
;
2619 I915_WRITE(reg
, temp
);
2624 /* enable CPU FDI TX and PCH FDI RX */
2625 reg
= FDI_TX_CTL(pipe
);
2626 temp
= I915_READ(reg
);
2628 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2629 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
2630 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
2631 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2632 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2633 temp
|= FDI_COMPOSITE_SYNC
;
2634 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2636 reg
= FDI_RX_CTL(pipe
);
2637 temp
= I915_READ(reg
);
2638 temp
&= ~FDI_LINK_TRAIN_AUTO
;
2639 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2640 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2641 temp
|= FDI_COMPOSITE_SYNC
;
2642 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2647 if (HAS_PCH_CPT(dev
))
2648 cpt_phase_pointer_enable(dev
, pipe
);
2650 for (i
= 0; i
< 4; i
++) {
2651 reg
= FDI_TX_CTL(pipe
);
2652 temp
= I915_READ(reg
);
2653 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2654 temp
|= snb_b_fdi_train_param
[i
];
2655 I915_WRITE(reg
, temp
);
2660 reg
= FDI_RX_IIR(pipe
);
2661 temp
= I915_READ(reg
);
2662 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2664 if (temp
& FDI_RX_BIT_LOCK
||
2665 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
2666 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2667 DRM_DEBUG_KMS("FDI train 1 done.\n");
2672 DRM_ERROR("FDI train 1 fail!\n");
2675 reg
= FDI_TX_CTL(pipe
);
2676 temp
= I915_READ(reg
);
2677 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2678 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
2679 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2680 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2681 I915_WRITE(reg
, temp
);
2683 reg
= FDI_RX_CTL(pipe
);
2684 temp
= I915_READ(reg
);
2685 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2686 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
2687 I915_WRITE(reg
, temp
);
2692 for (i
= 0; i
< 4; i
++) {
2693 reg
= FDI_TX_CTL(pipe
);
2694 temp
= I915_READ(reg
);
2695 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2696 temp
|= snb_b_fdi_train_param
[i
];
2697 I915_WRITE(reg
, temp
);
2702 reg
= FDI_RX_IIR(pipe
);
2703 temp
= I915_READ(reg
);
2704 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2706 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2707 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2708 DRM_DEBUG_KMS("FDI train 2 done.\n");
2713 DRM_ERROR("FDI train 2 fail!\n");
2715 DRM_DEBUG_KMS("FDI train done.\n");
2718 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
2720 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2721 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2722 int pipe
= intel_crtc
->pipe
;
2725 /* Write the TU size bits so error detection works */
2726 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
2727 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
2729 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2730 reg
= FDI_RX_CTL(pipe
);
2731 temp
= I915_READ(reg
);
2732 temp
&= ~((0x7 << 19) | (0x7 << 16));
2733 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2734 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPE_BPC_MASK
) << 11;
2735 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
2740 /* Switch from Rawclk to PCDclk */
2741 temp
= I915_READ(reg
);
2742 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
2747 /* On Haswell, the PLL configuration for ports and pipes is handled
2748 * separately, as part of DDI setup */
2749 if (!IS_HASWELL(dev
)) {
2750 /* Enable CPU FDI TX PLL, always on for Ironlake */
2751 reg
= FDI_TX_CTL(pipe
);
2752 temp
= I915_READ(reg
);
2753 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
2754 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
2762 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
2764 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2765 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2766 int pipe
= intel_crtc
->pipe
;
2769 /* Switch from PCDclk to Rawclk */
2770 reg
= FDI_RX_CTL(pipe
);
2771 temp
= I915_READ(reg
);
2772 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
2774 /* Disable CPU FDI TX PLL */
2775 reg
= FDI_TX_CTL(pipe
);
2776 temp
= I915_READ(reg
);
2777 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
2782 reg
= FDI_RX_CTL(pipe
);
2783 temp
= I915_READ(reg
);
2784 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
2786 /* Wait for the clocks to turn off. */
2791 static void cpt_phase_pointer_disable(struct drm_device
*dev
, int pipe
)
2793 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2794 u32 flags
= I915_READ(SOUTH_CHICKEN1
);
2796 flags
&= ~(FDI_PHASE_SYNC_EN(pipe
));
2797 I915_WRITE(SOUTH_CHICKEN1
, flags
); /* once to disable... */
2798 flags
&= ~(FDI_PHASE_SYNC_OVR(pipe
));
2799 I915_WRITE(SOUTH_CHICKEN1
, flags
); /* then again to lock */
2800 POSTING_READ(SOUTH_CHICKEN1
);
2802 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
2804 struct drm_device
*dev
= crtc
->dev
;
2805 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2806 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2807 int pipe
= intel_crtc
->pipe
;
2810 /* disable CPU FDI tx and PCH FDI rx */
2811 reg
= FDI_TX_CTL(pipe
);
2812 temp
= I915_READ(reg
);
2813 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
2816 reg
= FDI_RX_CTL(pipe
);
2817 temp
= I915_READ(reg
);
2818 temp
&= ~(0x7 << 16);
2819 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPE_BPC_MASK
) << 11;
2820 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
2825 /* Ironlake workaround, disable clock pointer after downing FDI */
2826 if (HAS_PCH_IBX(dev
)) {
2827 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2828 I915_WRITE(FDI_RX_CHICKEN(pipe
),
2829 I915_READ(FDI_RX_CHICKEN(pipe
) &
2830 ~FDI_RX_PHASE_SYNC_POINTER_EN
));
2831 } else if (HAS_PCH_CPT(dev
)) {
2832 cpt_phase_pointer_disable(dev
, pipe
);
2835 /* still set train pattern 1 */
2836 reg
= FDI_TX_CTL(pipe
);
2837 temp
= I915_READ(reg
);
2838 temp
&= ~FDI_LINK_TRAIN_NONE
;
2839 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2840 I915_WRITE(reg
, temp
);
2842 reg
= FDI_RX_CTL(pipe
);
2843 temp
= I915_READ(reg
);
2844 if (HAS_PCH_CPT(dev
)) {
2845 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2846 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2848 temp
&= ~FDI_LINK_TRAIN_NONE
;
2849 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2851 /* BPC in FDI rx is consistent with that in PIPECONF */
2852 temp
&= ~(0x07 << 16);
2853 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPE_BPC_MASK
) << 11;
2854 I915_WRITE(reg
, temp
);
2860 static void intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
2862 struct drm_device
*dev
= crtc
->dev
;
2864 if (crtc
->fb
== NULL
)
2867 mutex_lock(&dev
->struct_mutex
);
2868 intel_finish_fb(crtc
->fb
);
2869 mutex_unlock(&dev
->struct_mutex
);
2872 static bool intel_crtc_driving_pch(struct drm_crtc
*crtc
)
2874 struct drm_device
*dev
= crtc
->dev
;
2875 struct intel_encoder
*intel_encoder
;
2878 * If there's a non-PCH eDP on this crtc, it must be DP_A, and that
2879 * must be driven by its own crtc; no sharing is possible.
2881 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
2883 /* On Haswell, LPT PCH handles the VGA connection via FDI, and Haswell
2884 * CPU handles all others */
2885 if (IS_HASWELL(dev
)) {
2886 /* It is still unclear how this will work on PPT, so throw up a warning */
2887 WARN_ON(!HAS_PCH_LPT(dev
));
2889 if (intel_encoder
->type
== INTEL_OUTPUT_ANALOG
) {
2890 DRM_DEBUG_KMS("Haswell detected DAC encoder, assuming is PCH\n");
2893 DRM_DEBUG_KMS("Haswell detected encoder %d, assuming is CPU\n",
2894 intel_encoder
->type
);
2899 switch (intel_encoder
->type
) {
2900 case INTEL_OUTPUT_EDP
:
2901 if (!intel_encoder_is_pch_edp(&intel_encoder
->base
))
2910 /* Program iCLKIP clock to the desired frequency */
2911 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
2913 struct drm_device
*dev
= crtc
->dev
;
2914 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2915 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
2918 /* It is necessary to ungate the pixclk gate prior to programming
2919 * the divisors, and gate it back when it is done.
2921 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
2923 /* Disable SSCCTL */
2924 intel_sbi_write(dev_priv
, SBI_SSCCTL6
,
2925 intel_sbi_read(dev_priv
, SBI_SSCCTL6
) |
2926 SBI_SSCCTL_DISABLE
);
2928 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
2929 if (crtc
->mode
.clock
== 20000) {
2934 /* The iCLK virtual clock root frequency is in MHz,
2935 * but the crtc->mode.clock in in KHz. To get the divisors,
2936 * it is necessary to divide one by another, so we
2937 * convert the virtual clock precision to KHz here for higher
2940 u32 iclk_virtual_root_freq
= 172800 * 1000;
2941 u32 iclk_pi_range
= 64;
2942 u32 desired_divisor
, msb_divisor_value
, pi_value
;
2944 desired_divisor
= (iclk_virtual_root_freq
/ crtc
->mode
.clock
);
2945 msb_divisor_value
= desired_divisor
/ iclk_pi_range
;
2946 pi_value
= desired_divisor
% iclk_pi_range
;
2949 divsel
= msb_divisor_value
- 2;
2950 phaseinc
= pi_value
;
2953 /* This should not happen with any sane values */
2954 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
2955 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
2956 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
2957 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
2959 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
2966 /* Program SSCDIVINTPHASE6 */
2967 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
);
2968 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
2969 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
2970 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
2971 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
2972 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
2973 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
2975 intel_sbi_write(dev_priv
,
2976 SBI_SSCDIVINTPHASE6
,
2979 /* Program SSCAUXDIV */
2980 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
);
2981 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
2982 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
2983 intel_sbi_write(dev_priv
,
2988 /* Enable modulator and associated divider */
2989 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
);
2990 temp
&= ~SBI_SSCCTL_DISABLE
;
2991 intel_sbi_write(dev_priv
,
2995 /* Wait for initialization time */
2998 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
3002 * Enable PCH resources required for PCH ports:
3004 * - FDI training & RX/TX
3005 * - update transcoder timings
3006 * - DP transcoding bits
3009 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
3011 struct drm_device
*dev
= crtc
->dev
;
3012 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3013 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3014 int pipe
= intel_crtc
->pipe
;
3017 assert_transcoder_disabled(dev_priv
, pipe
);
3019 /* For PCH output, training FDI link */
3020 dev_priv
->display
.fdi_link_train(crtc
);
3022 intel_enable_pch_pll(intel_crtc
);
3024 if (HAS_PCH_LPT(dev
)) {
3025 DRM_DEBUG_KMS("LPT detected: programming iCLKIP\n");
3026 lpt_program_iclkip(crtc
);
3027 } else if (HAS_PCH_CPT(dev
)) {
3030 temp
= I915_READ(PCH_DPLL_SEL
);
3034 temp
|= TRANSA_DPLL_ENABLE
;
3035 sel
= TRANSA_DPLLB_SEL
;
3038 temp
|= TRANSB_DPLL_ENABLE
;
3039 sel
= TRANSB_DPLLB_SEL
;
3042 temp
|= TRANSC_DPLL_ENABLE
;
3043 sel
= TRANSC_DPLLB_SEL
;
3046 if (intel_crtc
->pch_pll
->pll_reg
== _PCH_DPLL_B
)
3050 I915_WRITE(PCH_DPLL_SEL
, temp
);
3053 /* set transcoder timing, panel must allow it */
3054 assert_panel_unlocked(dev_priv
, pipe
);
3055 I915_WRITE(TRANS_HTOTAL(pipe
), I915_READ(HTOTAL(pipe
)));
3056 I915_WRITE(TRANS_HBLANK(pipe
), I915_READ(HBLANK(pipe
)));
3057 I915_WRITE(TRANS_HSYNC(pipe
), I915_READ(HSYNC(pipe
)));
3059 I915_WRITE(TRANS_VTOTAL(pipe
), I915_READ(VTOTAL(pipe
)));
3060 I915_WRITE(TRANS_VBLANK(pipe
), I915_READ(VBLANK(pipe
)));
3061 I915_WRITE(TRANS_VSYNC(pipe
), I915_READ(VSYNC(pipe
)));
3062 I915_WRITE(TRANS_VSYNCSHIFT(pipe
), I915_READ(VSYNCSHIFT(pipe
)));
3064 if (!IS_HASWELL(dev
))
3065 intel_fdi_normal_train(crtc
);
3067 /* For PCH DP, enable TRANS_DP_CTL */
3068 if (HAS_PCH_CPT(dev
) &&
3069 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
3070 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
3071 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPE_BPC_MASK
) >> 5;
3072 reg
= TRANS_DP_CTL(pipe
);
3073 temp
= I915_READ(reg
);
3074 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
3075 TRANS_DP_SYNC_MASK
|
3077 temp
|= (TRANS_DP_OUTPUT_ENABLE
|
3078 TRANS_DP_ENH_FRAMING
);
3079 temp
|= bpc
<< 9; /* same format but at 11:9 */
3081 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PHSYNC
)
3082 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
3083 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PVSYNC
)
3084 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
3086 switch (intel_trans_dp_port_sel(crtc
)) {
3088 temp
|= TRANS_DP_PORT_SEL_B
;
3091 temp
|= TRANS_DP_PORT_SEL_C
;
3094 temp
|= TRANS_DP_PORT_SEL_D
;
3097 DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n");
3098 temp
|= TRANS_DP_PORT_SEL_B
;
3102 I915_WRITE(reg
, temp
);
3105 intel_enable_transcoder(dev_priv
, pipe
);
3108 static void intel_put_pch_pll(struct intel_crtc
*intel_crtc
)
3110 struct intel_pch_pll
*pll
= intel_crtc
->pch_pll
;
3115 if (pll
->refcount
== 0) {
3116 WARN(1, "bad PCH PLL refcount\n");
3121 intel_crtc
->pch_pll
= NULL
;
3124 static struct intel_pch_pll
*intel_get_pch_pll(struct intel_crtc
*intel_crtc
, u32 dpll
, u32 fp
)
3126 struct drm_i915_private
*dev_priv
= intel_crtc
->base
.dev
->dev_private
;
3127 struct intel_pch_pll
*pll
;
3130 pll
= intel_crtc
->pch_pll
;
3132 DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n",
3133 intel_crtc
->base
.base
.id
, pll
->pll_reg
);
3137 if (HAS_PCH_IBX(dev_priv
->dev
)) {
3138 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3139 i
= intel_crtc
->pipe
;
3140 pll
= &dev_priv
->pch_plls
[i
];
3142 DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n",
3143 intel_crtc
->base
.base
.id
, pll
->pll_reg
);
3148 for (i
= 0; i
< dev_priv
->num_pch_pll
; i
++) {
3149 pll
= &dev_priv
->pch_plls
[i
];
3151 /* Only want to check enabled timings first */
3152 if (pll
->refcount
== 0)
3155 if (dpll
== (I915_READ(pll
->pll_reg
) & 0x7fffffff) &&
3156 fp
== I915_READ(pll
->fp0_reg
)) {
3157 DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n",
3158 intel_crtc
->base
.base
.id
,
3159 pll
->pll_reg
, pll
->refcount
, pll
->active
);
3165 /* Ok no matching timings, maybe there's a free one? */
3166 for (i
= 0; i
< dev_priv
->num_pch_pll
; i
++) {
3167 pll
= &dev_priv
->pch_plls
[i
];
3168 if (pll
->refcount
== 0) {
3169 DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n",
3170 intel_crtc
->base
.base
.id
, pll
->pll_reg
);
3178 intel_crtc
->pch_pll
= pll
;
3180 DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i
, intel_crtc
->pipe
);
3181 prepare
: /* separate function? */
3182 DRM_DEBUG_DRIVER("switching PLL %x off\n", pll
->pll_reg
);
3184 /* Wait for the clocks to stabilize before rewriting the regs */
3185 I915_WRITE(pll
->pll_reg
, dpll
& ~DPLL_VCO_ENABLE
);
3186 POSTING_READ(pll
->pll_reg
);
3189 I915_WRITE(pll
->fp0_reg
, fp
);
3190 I915_WRITE(pll
->pll_reg
, dpll
& ~DPLL_VCO_ENABLE
);
3195 void intel_cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
3197 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3198 int dslreg
= PIPEDSL(pipe
), tc2reg
= TRANS_CHICKEN2(pipe
);
3201 temp
= I915_READ(dslreg
);
3203 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
3204 /* Without this, mode sets may fail silently on FDI */
3205 I915_WRITE(tc2reg
, TRANS_AUTOTRAIN_GEN_STALL_DIS
);
3207 I915_WRITE(tc2reg
, 0);
3208 if (wait_for(I915_READ(dslreg
) != temp
, 5))
3209 DRM_ERROR("mode set failed: pipe %d stuck\n", pipe
);
3213 static void ironlake_crtc_enable(struct drm_crtc
*crtc
)
3215 struct drm_device
*dev
= crtc
->dev
;
3216 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3217 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3218 struct intel_encoder
*encoder
;
3219 int pipe
= intel_crtc
->pipe
;
3220 int plane
= intel_crtc
->plane
;
3224 WARN_ON(!crtc
->enabled
);
3226 if (intel_crtc
->active
)
3229 intel_crtc
->active
= true;
3230 intel_update_watermarks(dev
);
3232 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
3233 temp
= I915_READ(PCH_LVDS
);
3234 if ((temp
& LVDS_PORT_EN
) == 0)
3235 I915_WRITE(PCH_LVDS
, temp
| LVDS_PORT_EN
);
3238 is_pch_port
= intel_crtc_driving_pch(crtc
);
3241 ironlake_fdi_pll_enable(intel_crtc
);
3243 ironlake_fdi_disable(crtc
);
3245 /* Enable panel fitting for LVDS */
3246 if (dev_priv
->pch_pf_size
&&
3247 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) || HAS_eDP
)) {
3248 /* Force use of hard-coded filter coefficients
3249 * as some pre-programmed values are broken,
3252 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
3253 I915_WRITE(PF_WIN_POS(pipe
), dev_priv
->pch_pf_pos
);
3254 I915_WRITE(PF_WIN_SZ(pipe
), dev_priv
->pch_pf_size
);
3258 * On ILK+ LUT must be loaded before the pipe is running but with
3261 intel_crtc_load_lut(crtc
);
3263 intel_enable_pipe(dev_priv
, pipe
, is_pch_port
);
3264 intel_enable_plane(dev_priv
, plane
, pipe
);
3267 ironlake_pch_enable(crtc
);
3269 mutex_lock(&dev
->struct_mutex
);
3270 intel_update_fbc(dev
);
3271 mutex_unlock(&dev
->struct_mutex
);
3273 intel_crtc_update_cursor(crtc
, true);
3275 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3276 encoder
->enable(encoder
);
3278 if (HAS_PCH_CPT(dev
))
3279 intel_cpt_verify_modeset(dev
, intel_crtc
->pipe
);
3282 static void ironlake_crtc_disable(struct drm_crtc
*crtc
)
3284 struct drm_device
*dev
= crtc
->dev
;
3285 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3286 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3287 struct intel_encoder
*encoder
;
3288 int pipe
= intel_crtc
->pipe
;
3289 int plane
= intel_crtc
->plane
;
3293 if (!intel_crtc
->active
)
3296 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3297 encoder
->disable(encoder
);
3299 intel_crtc_wait_for_pending_flips(crtc
);
3300 drm_vblank_off(dev
, pipe
);
3301 intel_crtc_update_cursor(crtc
, false);
3303 intel_disable_plane(dev_priv
, plane
, pipe
);
3305 if (dev_priv
->cfb_plane
== plane
)
3306 intel_disable_fbc(dev
);
3308 intel_disable_pipe(dev_priv
, pipe
);
3311 I915_WRITE(PF_CTL(pipe
), 0);
3312 I915_WRITE(PF_WIN_SZ(pipe
), 0);
3314 ironlake_fdi_disable(crtc
);
3316 /* This is a horrible layering violation; we should be doing this in
3317 * the connector/encoder ->prepare instead, but we don't always have
3318 * enough information there about the config to know whether it will
3319 * actually be necessary or just cause undesired flicker.
3321 intel_disable_pch_ports(dev_priv
, pipe
);
3323 intel_disable_transcoder(dev_priv
, pipe
);
3325 if (HAS_PCH_CPT(dev
)) {
3326 /* disable TRANS_DP_CTL */
3327 reg
= TRANS_DP_CTL(pipe
);
3328 temp
= I915_READ(reg
);
3329 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
| TRANS_DP_PORT_SEL_MASK
);
3330 temp
|= TRANS_DP_PORT_SEL_NONE
;
3331 I915_WRITE(reg
, temp
);
3333 /* disable DPLL_SEL */
3334 temp
= I915_READ(PCH_DPLL_SEL
);
3337 temp
&= ~(TRANSA_DPLL_ENABLE
| TRANSA_DPLLB_SEL
);
3340 temp
&= ~(TRANSB_DPLL_ENABLE
| TRANSB_DPLLB_SEL
);
3343 /* C shares PLL A or B */
3344 temp
&= ~(TRANSC_DPLL_ENABLE
| TRANSC_DPLLB_SEL
);
3349 I915_WRITE(PCH_DPLL_SEL
, temp
);
3352 /* disable PCH DPLL */
3353 intel_disable_pch_pll(intel_crtc
);
3355 ironlake_fdi_pll_disable(intel_crtc
);
3357 intel_crtc
->active
= false;
3358 intel_update_watermarks(dev
);
3360 mutex_lock(&dev
->struct_mutex
);
3361 intel_update_fbc(dev
);
3362 mutex_unlock(&dev
->struct_mutex
);
3365 static void ironlake_crtc_off(struct drm_crtc
*crtc
)
3367 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3368 intel_put_pch_pll(intel_crtc
);
3371 static void intel_crtc_dpms_overlay(struct intel_crtc
*intel_crtc
, bool enable
)
3373 if (!enable
&& intel_crtc
->overlay
) {
3374 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3375 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3377 mutex_lock(&dev
->struct_mutex
);
3378 dev_priv
->mm
.interruptible
= false;
3379 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
3380 dev_priv
->mm
.interruptible
= true;
3381 mutex_unlock(&dev
->struct_mutex
);
3384 /* Let userspace switch the overlay on again. In most cases userspace
3385 * has to recompute where to put it anyway.
3389 static void i9xx_crtc_enable(struct drm_crtc
*crtc
)
3391 struct drm_device
*dev
= crtc
->dev
;
3392 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3393 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3394 struct intel_encoder
*encoder
;
3395 int pipe
= intel_crtc
->pipe
;
3396 int plane
= intel_crtc
->plane
;
3398 WARN_ON(!crtc
->enabled
);
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);
3417 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3418 encoder
->enable(encoder
);
3421 static void i9xx_crtc_disable(struct drm_crtc
*crtc
)
3423 struct drm_device
*dev
= crtc
->dev
;
3424 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3425 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3426 struct intel_encoder
*encoder
;
3427 int pipe
= intel_crtc
->pipe
;
3428 int plane
= intel_crtc
->plane
;
3431 if (!intel_crtc
->active
)
3434 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3435 encoder
->disable(encoder
);
3437 /* Give the overlay scaler a chance to disable if it's on this pipe */
3438 intel_crtc_wait_for_pending_flips(crtc
);
3439 drm_vblank_off(dev
, pipe
);
3440 intel_crtc_dpms_overlay(intel_crtc
, false);
3441 intel_crtc_update_cursor(crtc
, false);
3443 if (dev_priv
->cfb_plane
== plane
)
3444 intel_disable_fbc(dev
);
3446 intel_disable_plane(dev_priv
, plane
, pipe
);
3447 intel_disable_pipe(dev_priv
, pipe
);
3448 intel_disable_pll(dev_priv
, pipe
);
3450 intel_crtc
->active
= false;
3451 intel_update_fbc(dev
);
3452 intel_update_watermarks(dev
);
3455 static void i9xx_crtc_off(struct drm_crtc
*crtc
)
3459 static void intel_crtc_update_sarea(struct drm_crtc
*crtc
,
3462 struct drm_device
*dev
= crtc
->dev
;
3463 struct drm_i915_master_private
*master_priv
;
3464 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3465 int pipe
= intel_crtc
->pipe
;
3467 if (!dev
->primary
->master
)
3470 master_priv
= dev
->primary
->master
->driver_priv
;
3471 if (!master_priv
->sarea_priv
)
3476 master_priv
->sarea_priv
->pipeA_w
= enabled
? crtc
->mode
.hdisplay
: 0;
3477 master_priv
->sarea_priv
->pipeA_h
= enabled
? crtc
->mode
.vdisplay
: 0;
3480 master_priv
->sarea_priv
->pipeB_w
= enabled
? crtc
->mode
.hdisplay
: 0;
3481 master_priv
->sarea_priv
->pipeB_h
= enabled
? crtc
->mode
.vdisplay
: 0;
3484 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe
));
3490 * Sets the power management mode of the pipe and plane.
3492 void intel_crtc_update_dpms(struct drm_crtc
*crtc
)
3494 struct drm_device
*dev
= crtc
->dev
;
3495 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3496 struct intel_encoder
*intel_encoder
;
3497 bool enable
= false;
3499 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
3500 enable
|= intel_encoder
->connectors_active
;
3503 dev_priv
->display
.crtc_enable(crtc
);
3505 dev_priv
->display
.crtc_disable(crtc
);
3507 intel_crtc_update_sarea(crtc
, enable
);
3510 static void intel_crtc_noop(struct drm_crtc
*crtc
)
3514 static void intel_crtc_disable(struct drm_crtc
*crtc
)
3516 struct drm_device
*dev
= crtc
->dev
;
3517 struct drm_connector
*connector
;
3518 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3520 /* crtc should still be enabled when we disable it. */
3521 WARN_ON(!crtc
->enabled
);
3523 dev_priv
->display
.crtc_disable(crtc
);
3524 intel_crtc_update_sarea(crtc
, false);
3525 dev_priv
->display
.off(crtc
);
3527 assert_plane_disabled(dev
->dev_private
, to_intel_crtc(crtc
)->plane
);
3528 assert_pipe_disabled(dev
->dev_private
, to_intel_crtc(crtc
)->pipe
);
3531 mutex_lock(&dev
->struct_mutex
);
3532 intel_unpin_fb_obj(to_intel_framebuffer(crtc
->fb
)->obj
);
3533 mutex_unlock(&dev
->struct_mutex
);
3537 /* Update computed state. */
3538 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
3539 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
3542 if (connector
->encoder
->crtc
!= crtc
)
3545 connector
->dpms
= DRM_MODE_DPMS_OFF
;
3546 to_intel_encoder(connector
->encoder
)->connectors_active
= false;
3550 void intel_modeset_disable(struct drm_device
*dev
)
3552 struct drm_crtc
*crtc
;
3554 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
3556 intel_crtc_disable(crtc
);
3560 void intel_encoder_noop(struct drm_encoder
*encoder
)
3564 void intel_encoder_destroy(struct drm_encoder
*encoder
)
3566 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
3568 drm_encoder_cleanup(encoder
);
3569 kfree(intel_encoder
);
3572 /* Simple dpms helper for encodres with just one connector, no cloning and only
3573 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
3574 * state of the entire output pipe. */
3575 void intel_encoder_dpms(struct intel_encoder
*encoder
, int mode
)
3577 if (mode
== DRM_MODE_DPMS_ON
) {
3578 encoder
->connectors_active
= true;
3580 intel_crtc_update_dpms(encoder
->base
.crtc
);
3582 encoder
->connectors_active
= false;
3584 intel_crtc_update_dpms(encoder
->base
.crtc
);
3588 /* Cross check the actual hw state with our own modeset state tracking (and it's
3589 * internal consistency). */
3590 static void intel_connector_check_state(struct intel_connector
*connector
)
3592 if (connector
->get_hw_state(connector
)) {
3593 struct intel_encoder
*encoder
= connector
->encoder
;
3594 struct drm_crtc
*crtc
;
3595 bool encoder_enabled
;
3598 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
3599 connector
->base
.base
.id
,
3600 drm_get_connector_name(&connector
->base
));
3602 WARN(connector
->base
.dpms
== DRM_MODE_DPMS_OFF
,
3603 "wrong connector dpms state\n");
3604 WARN(connector
->base
.encoder
!= &encoder
->base
,
3605 "active connector not linked to encoder\n");
3606 WARN(!encoder
->connectors_active
,
3607 "encoder->connectors_active not set\n");
3609 encoder_enabled
= encoder
->get_hw_state(encoder
, &pipe
);
3610 WARN(!encoder_enabled
, "encoder not enabled\n");
3611 if (WARN_ON(!encoder
->base
.crtc
))
3614 crtc
= encoder
->base
.crtc
;
3616 WARN(!crtc
->enabled
, "crtc not enabled\n");
3617 WARN(!to_intel_crtc(crtc
)->active
, "crtc not active\n");
3618 WARN(pipe
!= to_intel_crtc(crtc
)->pipe
,
3619 "encoder active on the wrong pipe\n");
3623 /* Even simpler default implementation, if there's really no special case to
3625 void intel_connector_dpms(struct drm_connector
*connector
, int mode
)
3627 struct intel_encoder
*encoder
= intel_attached_encoder(connector
);
3629 /* All the simple cases only support two dpms states. */
3630 if (mode
!= DRM_MODE_DPMS_ON
)
3631 mode
= DRM_MODE_DPMS_OFF
;
3633 if (mode
== connector
->dpms
)
3636 connector
->dpms
= mode
;
3638 /* Only need to change hw state when actually enabled */
3639 if (encoder
->base
.crtc
)
3640 intel_encoder_dpms(encoder
, mode
);
3642 WARN_ON(encoder
->connectors_active
!= false);
3644 intel_modeset_check_state(connector
->dev
);
3647 /* Simple connector->get_hw_state implementation for encoders that support only
3648 * one connector and no cloning and hence the encoder state determines the state
3649 * of the connector. */
3650 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
3653 struct intel_encoder
*encoder
= connector
->encoder
;
3655 return encoder
->get_hw_state(encoder
, &pipe
);
3658 static bool intel_crtc_mode_fixup(struct drm_crtc
*crtc
,
3659 const struct drm_display_mode
*mode
,
3660 struct drm_display_mode
*adjusted_mode
)
3662 struct drm_device
*dev
= crtc
->dev
;
3664 if (HAS_PCH_SPLIT(dev
)) {
3665 /* FDI link clock is fixed at 2.7G */
3666 if (mode
->clock
* 3 > IRONLAKE_FDI_FREQ
* 4)
3670 /* All interlaced capable intel hw wants timings in frames. Note though
3671 * that intel_lvds_mode_fixup does some funny tricks with the crtc
3672 * timings, so we need to be careful not to clobber these.*/
3673 if (!(adjusted_mode
->private_flags
& INTEL_MODE_CRTC_TIMINGS_SET
))
3674 drm_mode_set_crtcinfo(adjusted_mode
, 0);
3676 /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes
3677 * with a hsync front porch of 0.
3679 if ((INTEL_INFO(dev
)->gen
> 4 || IS_G4X(dev
)) &&
3680 adjusted_mode
->hsync_start
== adjusted_mode
->hdisplay
)
3686 static int valleyview_get_display_clock_speed(struct drm_device
*dev
)
3688 return 400000; /* FIXME */
3691 static int i945_get_display_clock_speed(struct drm_device
*dev
)
3696 static int i915_get_display_clock_speed(struct drm_device
*dev
)
3701 static int i9xx_misc_get_display_clock_speed(struct drm_device
*dev
)
3706 static int i915gm_get_display_clock_speed(struct drm_device
*dev
)
3710 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
3712 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
3715 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
3716 case GC_DISPLAY_CLOCK_333_MHZ
:
3719 case GC_DISPLAY_CLOCK_190_200_MHZ
:
3725 static int i865_get_display_clock_speed(struct drm_device
*dev
)
3730 static int i855_get_display_clock_speed(struct drm_device
*dev
)
3733 /* Assume that the hardware is in the high speed state. This
3734 * should be the default.
3736 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
3737 case GC_CLOCK_133_200
:
3738 case GC_CLOCK_100_200
:
3740 case GC_CLOCK_166_250
:
3742 case GC_CLOCK_100_133
:
3746 /* Shouldn't happen */
3750 static int i830_get_display_clock_speed(struct drm_device
*dev
)
3764 fdi_reduce_ratio(u32
*num
, u32
*den
)
3766 while (*num
> 0xffffff || *den
> 0xffffff) {
3773 ironlake_compute_m_n(int bits_per_pixel
, int nlanes
, int pixel_clock
,
3774 int link_clock
, struct fdi_m_n
*m_n
)
3776 m_n
->tu
= 64; /* default size */
3778 /* BUG_ON(pixel_clock > INT_MAX / 36); */
3779 m_n
->gmch_m
= bits_per_pixel
* pixel_clock
;
3780 m_n
->gmch_n
= link_clock
* nlanes
* 8;
3781 fdi_reduce_ratio(&m_n
->gmch_m
, &m_n
->gmch_n
);
3783 m_n
->link_m
= pixel_clock
;
3784 m_n
->link_n
= link_clock
;
3785 fdi_reduce_ratio(&m_n
->link_m
, &m_n
->link_n
);
3788 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
3790 if (i915_panel_use_ssc
>= 0)
3791 return i915_panel_use_ssc
!= 0;
3792 return dev_priv
->lvds_use_ssc
3793 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
3797 * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send
3798 * @crtc: CRTC structure
3799 * @mode: requested mode
3801 * A pipe may be connected to one or more outputs. Based on the depth of the
3802 * attached framebuffer, choose a good color depth to use on the pipe.
3804 * If possible, match the pipe depth to the fb depth. In some cases, this
3805 * isn't ideal, because the connected output supports a lesser or restricted
3806 * set of depths. Resolve that here:
3807 * LVDS typically supports only 6bpc, so clamp down in that case
3808 * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc
3809 * Displays may support a restricted set as well, check EDID and clamp as
3811 * DP may want to dither down to 6bpc to fit larger modes
3814 * Dithering requirement (i.e. false if display bpc and pipe bpc match,
3815 * true if they don't match).
3817 static bool intel_choose_pipe_bpp_dither(struct drm_crtc
*crtc
,
3818 struct drm_framebuffer
*fb
,
3819 unsigned int *pipe_bpp
,
3820 struct drm_display_mode
*mode
)
3822 struct drm_device
*dev
= crtc
->dev
;
3823 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3824 struct drm_connector
*connector
;
3825 struct intel_encoder
*intel_encoder
;
3826 unsigned int display_bpc
= UINT_MAX
, bpc
;
3828 /* Walk the encoders & connectors on this crtc, get min bpc */
3829 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
3831 if (intel_encoder
->type
== INTEL_OUTPUT_LVDS
) {
3832 unsigned int lvds_bpc
;
3834 if ((I915_READ(PCH_LVDS
) & LVDS_A3_POWER_MASK
) ==
3840 if (lvds_bpc
< display_bpc
) {
3841 DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc
, lvds_bpc
);
3842 display_bpc
= lvds_bpc
;
3847 /* Not one of the known troublemakers, check the EDID */
3848 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
3850 if (connector
->encoder
!= &intel_encoder
->base
)
3853 /* Don't use an invalid EDID bpc value */
3854 if (connector
->display_info
.bpc
&&
3855 connector
->display_info
.bpc
< display_bpc
) {
3856 DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc
, connector
->display_info
.bpc
);
3857 display_bpc
= connector
->display_info
.bpc
;
3862 * HDMI is either 12 or 8, so if the display lets 10bpc sneak
3863 * through, clamp it down. (Note: >12bpc will be caught below.)
3865 if (intel_encoder
->type
== INTEL_OUTPUT_HDMI
) {
3866 if (display_bpc
> 8 && display_bpc
< 12) {
3867 DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n");
3870 DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n");
3876 if (mode
->private_flags
& INTEL_MODE_DP_FORCE_6BPC
) {
3877 DRM_DEBUG_KMS("Dithering DP to 6bpc\n");
3882 * We could just drive the pipe at the highest bpc all the time and
3883 * enable dithering as needed, but that costs bandwidth. So choose
3884 * the minimum value that expresses the full color range of the fb but
3885 * also stays within the max display bpc discovered above.
3888 switch (fb
->depth
) {
3890 bpc
= 8; /* since we go through a colormap */
3894 bpc
= 6; /* min is 18bpp */
3906 DRM_DEBUG("unsupported depth, assuming 24 bits\n");
3907 bpc
= min((unsigned int)8, display_bpc
);
3911 display_bpc
= min(display_bpc
, bpc
);
3913 DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n",
3916 *pipe_bpp
= display_bpc
* 3;
3918 return display_bpc
!= bpc
;
3921 static int vlv_get_refclk(struct drm_crtc
*crtc
)
3923 struct drm_device
*dev
= crtc
->dev
;
3924 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3925 int refclk
= 27000; /* for DP & HDMI */
3927 return 100000; /* only one validated so far */
3929 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
)) {
3931 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
3932 if (intel_panel_use_ssc(dev_priv
))
3936 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
)) {
3943 static int i9xx_get_refclk(struct drm_crtc
*crtc
, int num_connectors
)
3945 struct drm_device
*dev
= crtc
->dev
;
3946 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3949 if (IS_VALLEYVIEW(dev
)) {
3950 refclk
= vlv_get_refclk(crtc
);
3951 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
3952 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
3953 refclk
= dev_priv
->lvds_ssc_freq
* 1000;
3954 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
3956 } else if (!IS_GEN2(dev
)) {
3965 static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode
*adjusted_mode
,
3966 intel_clock_t
*clock
)
3968 /* SDVO TV has fixed PLL values depend on its clock range,
3969 this mirrors vbios setting. */
3970 if (adjusted_mode
->clock
>= 100000
3971 && adjusted_mode
->clock
< 140500) {
3977 } else if (adjusted_mode
->clock
>= 140500
3978 && adjusted_mode
->clock
<= 200000) {
3987 static void i9xx_update_pll_dividers(struct drm_crtc
*crtc
,
3988 intel_clock_t
*clock
,
3989 intel_clock_t
*reduced_clock
)
3991 struct drm_device
*dev
= crtc
->dev
;
3992 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3993 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3994 int pipe
= intel_crtc
->pipe
;
3997 if (IS_PINEVIEW(dev
)) {
3998 fp
= (1 << clock
->n
) << 16 | clock
->m1
<< 8 | clock
->m2
;
4000 fp2
= (1 << reduced_clock
->n
) << 16 |
4001 reduced_clock
->m1
<< 8 | reduced_clock
->m2
;
4003 fp
= clock
->n
<< 16 | clock
->m1
<< 8 | clock
->m2
;
4005 fp2
= reduced_clock
->n
<< 16 | reduced_clock
->m1
<< 8 |
4009 I915_WRITE(FP0(pipe
), fp
);
4011 intel_crtc
->lowfreq_avail
= false;
4012 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4013 reduced_clock
&& i915_powersave
) {
4014 I915_WRITE(FP1(pipe
), fp2
);
4015 intel_crtc
->lowfreq_avail
= true;
4017 I915_WRITE(FP1(pipe
), fp
);
4021 static void intel_update_lvds(struct drm_crtc
*crtc
, intel_clock_t
*clock
,
4022 struct drm_display_mode
*adjusted_mode
)
4024 struct drm_device
*dev
= crtc
->dev
;
4025 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4026 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4027 int pipe
= intel_crtc
->pipe
;
4030 temp
= I915_READ(LVDS
);
4031 temp
|= LVDS_PORT_EN
| LVDS_A0A2_CLKA_POWER_UP
;
4033 temp
|= LVDS_PIPEB_SELECT
;
4035 temp
&= ~LVDS_PIPEB_SELECT
;
4037 /* set the corresponsding LVDS_BORDER bit */
4038 temp
|= dev_priv
->lvds_border_bits
;
4039 /* Set the B0-B3 data pairs corresponding to whether we're going to
4040 * set the DPLLs for dual-channel mode or not.
4043 temp
|= LVDS_B0B3_POWER_UP
| LVDS_CLKB_POWER_UP
;
4045 temp
&= ~(LVDS_B0B3_POWER_UP
| LVDS_CLKB_POWER_UP
);
4047 /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
4048 * appropriately here, but we need to look more thoroughly into how
4049 * panels behave in the two modes.
4051 /* set the dithering flag on LVDS as needed */
4052 if (INTEL_INFO(dev
)->gen
>= 4) {
4053 if (dev_priv
->lvds_dither
)
4054 temp
|= LVDS_ENABLE_DITHER
;
4056 temp
&= ~LVDS_ENABLE_DITHER
;
4058 temp
&= ~(LVDS_HSYNC_POLARITY
| LVDS_VSYNC_POLARITY
);
4059 if (adjusted_mode
->flags
& DRM_MODE_FLAG_NHSYNC
)
4060 temp
|= LVDS_HSYNC_POLARITY
;
4061 if (adjusted_mode
->flags
& DRM_MODE_FLAG_NVSYNC
)
4062 temp
|= LVDS_VSYNC_POLARITY
;
4063 I915_WRITE(LVDS
, temp
);
4066 static void vlv_update_pll(struct drm_crtc
*crtc
,
4067 struct drm_display_mode
*mode
,
4068 struct drm_display_mode
*adjusted_mode
,
4069 intel_clock_t
*clock
, intel_clock_t
*reduced_clock
,
4070 int refclk
, int num_connectors
)
4072 struct drm_device
*dev
= crtc
->dev
;
4073 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4074 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4075 int pipe
= intel_crtc
->pipe
;
4076 u32 dpll
, mdiv
, pdiv
;
4077 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
4080 is_hdmi
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
);
4088 /* Enable DPIO clock input */
4089 dpll
= DPLL_EXT_BUFFER_ENABLE_VLV
| DPLL_REFA_CLK_ENABLE_VLV
|
4090 DPLL_VGA_MODE_DIS
| DPLL_INTEGRATED_CLOCK_VLV
;
4091 I915_WRITE(DPLL(pipe
), dpll
);
4092 POSTING_READ(DPLL(pipe
));
4094 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
4095 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
4096 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
4097 mdiv
|= (1 << DPIO_POST_DIV_SHIFT
);
4098 mdiv
|= (1 << DPIO_K_SHIFT
);
4099 mdiv
|= DPIO_ENABLE_CALIBRATION
;
4100 intel_dpio_write(dev_priv
, DPIO_DIV(pipe
), mdiv
);
4102 intel_dpio_write(dev_priv
, DPIO_CORE_CLK(pipe
), 0x01000000);
4104 pdiv
= DPIO_REFSEL_OVERRIDE
| (5 << DPIO_PLL_MODESEL_SHIFT
) |
4105 (3 << DPIO_BIAS_CURRENT_CTL_SHIFT
) | (1<<20) |
4106 (8 << DPIO_DRIVER_CTL_SHIFT
) | (5 << DPIO_CLK_BIAS_CTL_SHIFT
);
4107 intel_dpio_write(dev_priv
, DPIO_REFSFR(pipe
), pdiv
);
4109 intel_dpio_write(dev_priv
, DPIO_LFP_COEFF(pipe
), 0x009f0051);
4111 dpll
|= DPLL_VCO_ENABLE
;
4112 I915_WRITE(DPLL(pipe
), dpll
);
4113 POSTING_READ(DPLL(pipe
));
4114 if (wait_for(((I915_READ(DPLL(pipe
)) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
4115 DRM_ERROR("DPLL %d failed to lock\n", pipe
);
4118 u32 temp
= intel_mode_get_pixel_multiplier(adjusted_mode
);
4121 temp
= (temp
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
4125 I915_WRITE(DPLL_MD(pipe
), temp
);
4126 POSTING_READ(DPLL_MD(pipe
));
4129 intel_dpio_write(dev_priv
, DPIO_FASTCLK_DISABLE
, 0x641); /* ??? */
4132 static void i9xx_update_pll(struct drm_crtc
*crtc
,
4133 struct drm_display_mode
*mode
,
4134 struct drm_display_mode
*adjusted_mode
,
4135 intel_clock_t
*clock
, intel_clock_t
*reduced_clock
,
4138 struct drm_device
*dev
= crtc
->dev
;
4139 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4140 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4141 int pipe
= intel_crtc
->pipe
;
4145 is_sdvo
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
) ||
4146 intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
);
4148 dpll
= DPLL_VGA_MODE_DIS
;
4150 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
4151 dpll
|= DPLLB_MODE_LVDS
;
4153 dpll
|= DPLLB_MODE_DAC_SERIAL
;
4155 int pixel_multiplier
= intel_mode_get_pixel_multiplier(adjusted_mode
);
4156 if (pixel_multiplier
> 1) {
4157 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
))
4158 dpll
|= (pixel_multiplier
- 1) << SDVO_MULTIPLIER_SHIFT_HIRES
;
4160 dpll
|= DPLL_DVO_HIGH_SPEED
;
4162 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
))
4163 dpll
|= DPLL_DVO_HIGH_SPEED
;
4165 /* compute bitmask from p1 value */
4166 if (IS_PINEVIEW(dev
))
4167 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
4169 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4170 if (IS_G4X(dev
) && reduced_clock
)
4171 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
4173 switch (clock
->p2
) {
4175 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
4178 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
4181 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
4184 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
4187 if (INTEL_INFO(dev
)->gen
>= 4)
4188 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
4190 if (is_sdvo
&& intel_pipe_has_type(crtc
, INTEL_OUTPUT_TVOUT
))
4191 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
4192 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_TVOUT
))
4193 /* XXX: just matching BIOS for now */
4194 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4196 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4197 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
4198 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
4200 dpll
|= PLL_REF_INPUT_DREFCLK
;
4202 dpll
|= DPLL_VCO_ENABLE
;
4203 I915_WRITE(DPLL(pipe
), dpll
& ~DPLL_VCO_ENABLE
);
4204 POSTING_READ(DPLL(pipe
));
4207 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
4208 * This is an exception to the general rule that mode_set doesn't turn
4211 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
4212 intel_update_lvds(crtc
, clock
, adjusted_mode
);
4214 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
))
4215 intel_dp_set_m_n(crtc
, mode
, adjusted_mode
);
4217 I915_WRITE(DPLL(pipe
), dpll
);
4219 /* Wait for the clocks to stabilize. */
4220 POSTING_READ(DPLL(pipe
));
4223 if (INTEL_INFO(dev
)->gen
>= 4) {
4226 temp
= intel_mode_get_pixel_multiplier(adjusted_mode
);
4228 temp
= (temp
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
4232 I915_WRITE(DPLL_MD(pipe
), temp
);
4234 /* The pixel multiplier can only be updated once the
4235 * DPLL is enabled and the clocks are stable.
4237 * So write it again.
4239 I915_WRITE(DPLL(pipe
), dpll
);
4243 static void i8xx_update_pll(struct drm_crtc
*crtc
,
4244 struct drm_display_mode
*adjusted_mode
,
4245 intel_clock_t
*clock
,
4248 struct drm_device
*dev
= crtc
->dev
;
4249 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4250 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4251 int pipe
= intel_crtc
->pipe
;
4254 dpll
= DPLL_VGA_MODE_DIS
;
4256 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
4257 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4260 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
4262 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4264 dpll
|= PLL_P2_DIVIDE_BY_4
;
4267 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_TVOUT
))
4268 /* XXX: just matching BIOS for now */
4269 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4271 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4272 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
4273 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
4275 dpll
|= PLL_REF_INPUT_DREFCLK
;
4277 dpll
|= DPLL_VCO_ENABLE
;
4278 I915_WRITE(DPLL(pipe
), dpll
& ~DPLL_VCO_ENABLE
);
4279 POSTING_READ(DPLL(pipe
));
4282 I915_WRITE(DPLL(pipe
), dpll
);
4284 /* Wait for the clocks to stabilize. */
4285 POSTING_READ(DPLL(pipe
));
4288 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
4289 * This is an exception to the general rule that mode_set doesn't turn
4292 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
4293 intel_update_lvds(crtc
, clock
, adjusted_mode
);
4295 /* The pixel multiplier can only be updated once the
4296 * DPLL is enabled and the clocks are stable.
4298 * So write it again.
4300 I915_WRITE(DPLL(pipe
), dpll
);
4303 static int i9xx_crtc_mode_set(struct drm_crtc
*crtc
,
4304 struct drm_display_mode
*mode
,
4305 struct drm_display_mode
*adjusted_mode
,
4307 struct drm_framebuffer
*fb
)
4309 struct drm_device
*dev
= crtc
->dev
;
4310 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4311 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4312 int pipe
= intel_crtc
->pipe
;
4313 int plane
= intel_crtc
->plane
;
4314 int refclk
, num_connectors
= 0;
4315 intel_clock_t clock
, reduced_clock
;
4316 u32 dspcntr
, pipeconf
, vsyncshift
;
4317 bool ok
, has_reduced_clock
= false, is_sdvo
= false;
4318 bool is_lvds
= false, is_tv
= false, is_dp
= false;
4319 struct intel_encoder
*encoder
;
4320 const intel_limit_t
*limit
;
4323 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4324 switch (encoder
->type
) {
4325 case INTEL_OUTPUT_LVDS
:
4328 case INTEL_OUTPUT_SDVO
:
4329 case INTEL_OUTPUT_HDMI
:
4331 if (encoder
->needs_tv_clock
)
4334 case INTEL_OUTPUT_TVOUT
:
4337 case INTEL_OUTPUT_DISPLAYPORT
:
4345 refclk
= i9xx_get_refclk(crtc
, num_connectors
);
4348 * Returns a set of divisors for the desired target clock with the given
4349 * refclk, or FALSE. The returned values represent the clock equation:
4350 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4352 limit
= intel_limit(crtc
, refclk
);
4353 ok
= limit
->find_pll(limit
, crtc
, adjusted_mode
->clock
, refclk
, NULL
,
4356 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4360 /* Ensure that the cursor is valid for the new mode before changing... */
4361 intel_crtc_update_cursor(crtc
, true);
4363 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
4365 * Ensure we match the reduced clock's P to the target clock.
4366 * If the clocks don't match, we can't switch the display clock
4367 * by using the FP0/FP1. In such case we will disable the LVDS
4368 * downclock feature.
4370 has_reduced_clock
= limit
->find_pll(limit
, crtc
,
4371 dev_priv
->lvds_downclock
,
4377 if (is_sdvo
&& is_tv
)
4378 i9xx_adjust_sdvo_tv_clock(adjusted_mode
, &clock
);
4380 i9xx_update_pll_dividers(crtc
, &clock
, has_reduced_clock
?
4381 &reduced_clock
: NULL
);
4384 i8xx_update_pll(crtc
, adjusted_mode
, &clock
, num_connectors
);
4385 else if (IS_VALLEYVIEW(dev
))
4386 vlv_update_pll(crtc
, mode
,adjusted_mode
, &clock
, NULL
,
4387 refclk
, num_connectors
);
4389 i9xx_update_pll(crtc
, mode
, adjusted_mode
, &clock
,
4390 has_reduced_clock
? &reduced_clock
: NULL
,
4393 /* setup pipeconf */
4394 pipeconf
= I915_READ(PIPECONF(pipe
));
4396 /* Set up the display plane register */
4397 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
4400 dspcntr
&= ~DISPPLANE_SEL_PIPE_MASK
;
4402 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
4404 if (pipe
== 0 && INTEL_INFO(dev
)->gen
< 4) {
4405 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4408 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4412 dev_priv
->display
.get_display_clock_speed(dev
) * 9 / 10)
4413 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
4415 pipeconf
&= ~PIPECONF_DOUBLE_WIDE
;
4418 /* default to 8bpc */
4419 pipeconf
&= ~(PIPECONF_BPP_MASK
| PIPECONF_DITHER_EN
);
4421 if (mode
->private_flags
& INTEL_MODE_DP_FORCE_6BPC
) {
4422 pipeconf
|= PIPECONF_BPP_6
|
4423 PIPECONF_DITHER_EN
|
4424 PIPECONF_DITHER_TYPE_SP
;
4428 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe
== 0 ? 'A' : 'B');
4429 drm_mode_debug_printmodeline(mode
);
4431 if (HAS_PIPE_CXSR(dev
)) {
4432 if (intel_crtc
->lowfreq_avail
) {
4433 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4434 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
4436 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
4437 pipeconf
&= ~PIPECONF_CXSR_DOWNCLOCK
;
4441 pipeconf
&= ~PIPECONF_INTERLACE_MASK
;
4442 if (!IS_GEN2(dev
) &&
4443 adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
4444 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
4445 /* the chip adds 2 halflines automatically */
4446 adjusted_mode
->crtc_vtotal
-= 1;
4447 adjusted_mode
->crtc_vblank_end
-= 1;
4448 vsyncshift
= adjusted_mode
->crtc_hsync_start
4449 - adjusted_mode
->crtc_htotal
/2;
4451 pipeconf
|= PIPECONF_PROGRESSIVE
;
4456 I915_WRITE(VSYNCSHIFT(pipe
), vsyncshift
);
4458 I915_WRITE(HTOTAL(pipe
),
4459 (adjusted_mode
->crtc_hdisplay
- 1) |
4460 ((adjusted_mode
->crtc_htotal
- 1) << 16));
4461 I915_WRITE(HBLANK(pipe
),
4462 (adjusted_mode
->crtc_hblank_start
- 1) |
4463 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
4464 I915_WRITE(HSYNC(pipe
),
4465 (adjusted_mode
->crtc_hsync_start
- 1) |
4466 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
4468 I915_WRITE(VTOTAL(pipe
),
4469 (adjusted_mode
->crtc_vdisplay
- 1) |
4470 ((adjusted_mode
->crtc_vtotal
- 1) << 16));
4471 I915_WRITE(VBLANK(pipe
),
4472 (adjusted_mode
->crtc_vblank_start
- 1) |
4473 ((adjusted_mode
->crtc_vblank_end
- 1) << 16));
4474 I915_WRITE(VSYNC(pipe
),
4475 (adjusted_mode
->crtc_vsync_start
- 1) |
4476 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
4478 /* pipesrc and dspsize control the size that is scaled from,
4479 * which should always be the user's requested size.
4481 I915_WRITE(DSPSIZE(plane
),
4482 ((mode
->vdisplay
- 1) << 16) |
4483 (mode
->hdisplay
- 1));
4484 I915_WRITE(DSPPOS(plane
), 0);
4485 I915_WRITE(PIPESRC(pipe
),
4486 ((mode
->hdisplay
- 1) << 16) | (mode
->vdisplay
- 1));
4488 I915_WRITE(PIPECONF(pipe
), pipeconf
);
4489 POSTING_READ(PIPECONF(pipe
));
4490 intel_enable_pipe(dev_priv
, pipe
, false);
4492 intel_wait_for_vblank(dev
, pipe
);
4494 I915_WRITE(DSPCNTR(plane
), dspcntr
);
4495 POSTING_READ(DSPCNTR(plane
));
4497 ret
= intel_pipe_set_base(crtc
, x
, y
, fb
);
4499 intel_update_watermarks(dev
);
4505 * Initialize reference clocks when the driver loads
4507 void ironlake_init_pch_refclk(struct drm_device
*dev
)
4509 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4510 struct drm_mode_config
*mode_config
= &dev
->mode_config
;
4511 struct intel_encoder
*encoder
;
4513 bool has_lvds
= false;
4514 bool has_cpu_edp
= false;
4515 bool has_pch_edp
= false;
4516 bool has_panel
= false;
4517 bool has_ck505
= false;
4518 bool can_ssc
= false;
4520 /* We need to take the global config into account */
4521 list_for_each_entry(encoder
, &mode_config
->encoder_list
,
4523 switch (encoder
->type
) {
4524 case INTEL_OUTPUT_LVDS
:
4528 case INTEL_OUTPUT_EDP
:
4530 if (intel_encoder_is_pch_edp(&encoder
->base
))
4538 if (HAS_PCH_IBX(dev
)) {
4539 has_ck505
= dev_priv
->display_clock_mode
;
4540 can_ssc
= has_ck505
;
4546 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n",
4547 has_panel
, has_lvds
, has_pch_edp
, has_cpu_edp
,
4550 /* Ironlake: try to setup display ref clock before DPLL
4551 * enabling. This is only under driver's control after
4552 * PCH B stepping, previous chipset stepping should be
4553 * ignoring this setting.
4555 temp
= I915_READ(PCH_DREF_CONTROL
);
4556 /* Always enable nonspread source */
4557 temp
&= ~DREF_NONSPREAD_SOURCE_MASK
;
4560 temp
|= DREF_NONSPREAD_CK505_ENABLE
;
4562 temp
|= DREF_NONSPREAD_SOURCE_ENABLE
;
4565 temp
&= ~DREF_SSC_SOURCE_MASK
;
4566 temp
|= DREF_SSC_SOURCE_ENABLE
;
4568 /* SSC must be turned on before enabling the CPU output */
4569 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
4570 DRM_DEBUG_KMS("Using SSC on panel\n");
4571 temp
|= DREF_SSC1_ENABLE
;
4573 temp
&= ~DREF_SSC1_ENABLE
;
4575 /* Get SSC going before enabling the outputs */
4576 I915_WRITE(PCH_DREF_CONTROL
, temp
);
4577 POSTING_READ(PCH_DREF_CONTROL
);
4580 temp
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
4582 /* Enable CPU source on CPU attached eDP */
4584 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
4585 DRM_DEBUG_KMS("Using SSC on eDP\n");
4586 temp
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
4589 temp
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
4591 temp
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
4593 I915_WRITE(PCH_DREF_CONTROL
, temp
);
4594 POSTING_READ(PCH_DREF_CONTROL
);
4597 DRM_DEBUG_KMS("Disabling SSC entirely\n");
4599 temp
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
4601 /* Turn off CPU output */
4602 temp
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
4604 I915_WRITE(PCH_DREF_CONTROL
, temp
);
4605 POSTING_READ(PCH_DREF_CONTROL
);
4608 /* Turn off the SSC source */
4609 temp
&= ~DREF_SSC_SOURCE_MASK
;
4610 temp
|= DREF_SSC_SOURCE_DISABLE
;
4613 temp
&= ~ DREF_SSC1_ENABLE
;
4615 I915_WRITE(PCH_DREF_CONTROL
, temp
);
4616 POSTING_READ(PCH_DREF_CONTROL
);
4621 static int ironlake_get_refclk(struct drm_crtc
*crtc
)
4623 struct drm_device
*dev
= crtc
->dev
;
4624 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4625 struct intel_encoder
*encoder
;
4626 struct intel_encoder
*edp_encoder
= NULL
;
4627 int num_connectors
= 0;
4628 bool is_lvds
= false;
4630 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4631 switch (encoder
->type
) {
4632 case INTEL_OUTPUT_LVDS
:
4635 case INTEL_OUTPUT_EDP
:
4636 edp_encoder
= encoder
;
4642 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
4643 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4644 dev_priv
->lvds_ssc_freq
);
4645 return dev_priv
->lvds_ssc_freq
* 1000;
4651 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
,
4652 struct drm_display_mode
*adjusted_mode
,
4655 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
4656 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4657 int pipe
= intel_crtc
->pipe
;
4660 val
= I915_READ(PIPECONF(pipe
));
4662 val
&= ~PIPE_BPC_MASK
;
4663 switch (intel_crtc
->bpp
) {
4681 val
&= ~(PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_MASK
);
4683 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
4685 val
&= ~PIPECONF_INTERLACE_MASK
;
4686 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
4687 val
|= PIPECONF_INTERLACED_ILK
;
4689 val
|= PIPECONF_PROGRESSIVE
;
4691 I915_WRITE(PIPECONF(pipe
), val
);
4692 POSTING_READ(PIPECONF(pipe
));
4695 static int ironlake_crtc_mode_set(struct drm_crtc
*crtc
,
4696 struct drm_display_mode
*mode
,
4697 struct drm_display_mode
*adjusted_mode
,
4699 struct drm_framebuffer
*fb
)
4701 struct drm_device
*dev
= crtc
->dev
;
4702 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4703 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4704 int pipe
= intel_crtc
->pipe
;
4705 int plane
= intel_crtc
->plane
;
4706 int refclk
, num_connectors
= 0;
4707 intel_clock_t clock
, reduced_clock
;
4708 u32 dpll
, fp
= 0, fp2
= 0;
4709 bool ok
, has_reduced_clock
= false, is_sdvo
= false;
4710 bool is_crt
= false, is_lvds
= false, is_tv
= false, is_dp
= false;
4711 struct intel_encoder
*encoder
, *edp_encoder
= NULL
;
4712 const intel_limit_t
*limit
;
4714 struct fdi_m_n m_n
= {0};
4716 int target_clock
, pixel_multiplier
, lane
, link_bw
, factor
;
4717 unsigned int pipe_bpp
;
4719 bool is_cpu_edp
= false, is_pch_edp
= false;
4721 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4722 switch (encoder
->type
) {
4723 case INTEL_OUTPUT_LVDS
:
4726 case INTEL_OUTPUT_SDVO
:
4727 case INTEL_OUTPUT_HDMI
:
4729 if (encoder
->needs_tv_clock
)
4732 case INTEL_OUTPUT_TVOUT
:
4735 case INTEL_OUTPUT_ANALOG
:
4738 case INTEL_OUTPUT_DISPLAYPORT
:
4741 case INTEL_OUTPUT_EDP
:
4743 if (intel_encoder_is_pch_edp(&encoder
->base
))
4747 edp_encoder
= encoder
;
4754 refclk
= ironlake_get_refclk(crtc
);
4757 * Returns a set of divisors for the desired target clock with the given
4758 * refclk, or FALSE. The returned values represent the clock equation:
4759 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4761 limit
= intel_limit(crtc
, refclk
);
4762 ok
= limit
->find_pll(limit
, crtc
, adjusted_mode
->clock
, refclk
, NULL
,
4765 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4769 /* Ensure that the cursor is valid for the new mode before changing... */
4770 intel_crtc_update_cursor(crtc
, true);
4772 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
4774 * Ensure we match the reduced clock's P to the target clock.
4775 * If the clocks don't match, we can't switch the display clock
4776 * by using the FP0/FP1. In such case we will disable the LVDS
4777 * downclock feature.
4779 has_reduced_clock
= limit
->find_pll(limit
, crtc
,
4780 dev_priv
->lvds_downclock
,
4786 if (is_sdvo
&& is_tv
)
4787 i9xx_adjust_sdvo_tv_clock(adjusted_mode
, &clock
);
4791 pixel_multiplier
= intel_mode_get_pixel_multiplier(adjusted_mode
);
4793 /* CPU eDP doesn't require FDI link, so just set DP M/N
4794 according to current link config */
4796 intel_edp_link_config(edp_encoder
, &lane
, &link_bw
);
4798 /* FDI is a binary signal running at ~2.7GHz, encoding
4799 * each output octet as 10 bits. The actual frequency
4800 * is stored as a divider into a 100MHz clock, and the
4801 * mode pixel clock is stored in units of 1KHz.
4802 * Hence the bw of each lane in terms of the mode signal
4805 link_bw
= intel_fdi_link_freq(dev
) * MHz(100)/KHz(1)/10;
4808 /* [e]DP over FDI requires target mode clock instead of link clock. */
4810 target_clock
= intel_edp_target_clock(edp_encoder
, mode
);
4812 target_clock
= mode
->clock
;
4814 target_clock
= adjusted_mode
->clock
;
4816 /* determine panel color depth */
4817 dither
= intel_choose_pipe_bpp_dither(crtc
, fb
, &pipe_bpp
, mode
);
4818 if (is_lvds
&& dev_priv
->lvds_dither
)
4821 if (pipe_bpp
!= 18 && pipe_bpp
!= 24 && pipe_bpp
!= 30 &&
4823 WARN(1, "intel_choose_pipe_bpp returned invalid value %d\n",
4827 intel_crtc
->bpp
= pipe_bpp
;
4831 * Account for spread spectrum to avoid
4832 * oversubscribing the link. Max center spread
4833 * is 2.5%; use 5% for safety's sake.
4835 u32 bps
= target_clock
* intel_crtc
->bpp
* 21 / 20;
4836 lane
= bps
/ (link_bw
* 8) + 1;
4839 intel_crtc
->fdi_lanes
= lane
;
4841 if (pixel_multiplier
> 1)
4842 link_bw
*= pixel_multiplier
;
4843 ironlake_compute_m_n(intel_crtc
->bpp
, lane
, target_clock
, link_bw
,
4846 fp
= clock
.n
<< 16 | clock
.m1
<< 8 | clock
.m2
;
4847 if (has_reduced_clock
)
4848 fp2
= reduced_clock
.n
<< 16 | reduced_clock
.m1
<< 8 |
4851 /* Enable autotuning of the PLL clock (if permissible) */
4854 if ((intel_panel_use_ssc(dev_priv
) &&
4855 dev_priv
->lvds_ssc_freq
== 100) ||
4856 (I915_READ(PCH_LVDS
) & LVDS_CLKB_POWER_MASK
) == LVDS_CLKB_POWER_UP
)
4858 } else if (is_sdvo
&& is_tv
)
4861 if (clock
.m
< factor
* clock
.n
)
4867 dpll
|= DPLLB_MODE_LVDS
;
4869 dpll
|= DPLLB_MODE_DAC_SERIAL
;
4871 int pixel_multiplier
= intel_mode_get_pixel_multiplier(adjusted_mode
);
4872 if (pixel_multiplier
> 1) {
4873 dpll
|= (pixel_multiplier
- 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
4875 dpll
|= DPLL_DVO_HIGH_SPEED
;
4877 if (is_dp
&& !is_cpu_edp
)
4878 dpll
|= DPLL_DVO_HIGH_SPEED
;
4880 /* compute bitmask from p1 value */
4881 dpll
|= (1 << (clock
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4883 dpll
|= (1 << (clock
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
4887 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
4890 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
4893 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
4896 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
4900 if (is_sdvo
&& is_tv
)
4901 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
4903 /* XXX: just matching BIOS for now */
4904 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4906 else if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
4907 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
4909 dpll
|= PLL_REF_INPUT_DREFCLK
;
4911 DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe
);
4912 drm_mode_debug_printmodeline(mode
);
4914 /* CPU eDP is the only output that doesn't need a PCH PLL of its own on
4915 * pre-Haswell/LPT generation */
4916 if (HAS_PCH_LPT(dev
)) {
4917 DRM_DEBUG_KMS("LPT detected: no PLL for pipe %d necessary\n",
4919 } else if (!is_cpu_edp
) {
4920 struct intel_pch_pll
*pll
;
4922 pll
= intel_get_pch_pll(intel_crtc
, dpll
, fp
);
4924 DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n",
4929 intel_put_pch_pll(intel_crtc
);
4931 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
4932 * This is an exception to the general rule that mode_set doesn't turn
4936 temp
= I915_READ(PCH_LVDS
);
4937 temp
|= LVDS_PORT_EN
| LVDS_A0A2_CLKA_POWER_UP
;
4938 if (HAS_PCH_CPT(dev
)) {
4939 temp
&= ~PORT_TRANS_SEL_MASK
;
4940 temp
|= PORT_TRANS_SEL_CPT(pipe
);
4943 temp
|= LVDS_PIPEB_SELECT
;
4945 temp
&= ~LVDS_PIPEB_SELECT
;
4948 /* set the corresponsding LVDS_BORDER bit */
4949 temp
|= dev_priv
->lvds_border_bits
;
4950 /* Set the B0-B3 data pairs corresponding to whether we're going to
4951 * set the DPLLs for dual-channel mode or not.
4954 temp
|= LVDS_B0B3_POWER_UP
| LVDS_CLKB_POWER_UP
;
4956 temp
&= ~(LVDS_B0B3_POWER_UP
| LVDS_CLKB_POWER_UP
);
4958 /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
4959 * appropriately here, but we need to look more thoroughly into how
4960 * panels behave in the two modes.
4962 temp
&= ~(LVDS_HSYNC_POLARITY
| LVDS_VSYNC_POLARITY
);
4963 if (adjusted_mode
->flags
& DRM_MODE_FLAG_NHSYNC
)
4964 temp
|= LVDS_HSYNC_POLARITY
;
4965 if (adjusted_mode
->flags
& DRM_MODE_FLAG_NVSYNC
)
4966 temp
|= LVDS_VSYNC_POLARITY
;
4967 I915_WRITE(PCH_LVDS
, temp
);
4970 if (is_dp
&& !is_cpu_edp
) {
4971 intel_dp_set_m_n(crtc
, mode
, adjusted_mode
);
4973 /* For non-DP output, clear any trans DP clock recovery setting.*/
4974 I915_WRITE(TRANSDATA_M1(pipe
), 0);
4975 I915_WRITE(TRANSDATA_N1(pipe
), 0);
4976 I915_WRITE(TRANSDPLINK_M1(pipe
), 0);
4977 I915_WRITE(TRANSDPLINK_N1(pipe
), 0);
4980 if (intel_crtc
->pch_pll
) {
4981 I915_WRITE(intel_crtc
->pch_pll
->pll_reg
, dpll
);
4983 /* Wait for the clocks to stabilize. */
4984 POSTING_READ(intel_crtc
->pch_pll
->pll_reg
);
4987 /* The pixel multiplier can only be updated once the
4988 * DPLL is enabled and the clocks are stable.
4990 * So write it again.
4992 I915_WRITE(intel_crtc
->pch_pll
->pll_reg
, dpll
);
4995 intel_crtc
->lowfreq_avail
= false;
4996 if (intel_crtc
->pch_pll
) {
4997 if (is_lvds
&& has_reduced_clock
&& i915_powersave
) {
4998 I915_WRITE(intel_crtc
->pch_pll
->fp1_reg
, fp2
);
4999 intel_crtc
->lowfreq_avail
= true;
5001 I915_WRITE(intel_crtc
->pch_pll
->fp1_reg
, fp
);
5005 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
5006 /* the chip adds 2 halflines automatically */
5007 adjusted_mode
->crtc_vtotal
-= 1;
5008 adjusted_mode
->crtc_vblank_end
-= 1;
5009 I915_WRITE(VSYNCSHIFT(pipe
),
5010 adjusted_mode
->crtc_hsync_start
5011 - adjusted_mode
->crtc_htotal
/2);
5013 I915_WRITE(VSYNCSHIFT(pipe
), 0);
5016 I915_WRITE(HTOTAL(pipe
),
5017 (adjusted_mode
->crtc_hdisplay
- 1) |
5018 ((adjusted_mode
->crtc_htotal
- 1) << 16));
5019 I915_WRITE(HBLANK(pipe
),
5020 (adjusted_mode
->crtc_hblank_start
- 1) |
5021 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
5022 I915_WRITE(HSYNC(pipe
),
5023 (adjusted_mode
->crtc_hsync_start
- 1) |
5024 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
5026 I915_WRITE(VTOTAL(pipe
),
5027 (adjusted_mode
->crtc_vdisplay
- 1) |
5028 ((adjusted_mode
->crtc_vtotal
- 1) << 16));
5029 I915_WRITE(VBLANK(pipe
),
5030 (adjusted_mode
->crtc_vblank_start
- 1) |
5031 ((adjusted_mode
->crtc_vblank_end
- 1) << 16));
5032 I915_WRITE(VSYNC(pipe
),
5033 (adjusted_mode
->crtc_vsync_start
- 1) |
5034 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
5036 /* pipesrc controls the size that is scaled from, which should
5037 * always be the user's requested size.
5039 I915_WRITE(PIPESRC(pipe
),
5040 ((mode
->hdisplay
- 1) << 16) | (mode
->vdisplay
- 1));
5042 I915_WRITE(PIPE_DATA_M1(pipe
), TU_SIZE(m_n
.tu
) | m_n
.gmch_m
);
5043 I915_WRITE(PIPE_DATA_N1(pipe
), m_n
.gmch_n
);
5044 I915_WRITE(PIPE_LINK_M1(pipe
), m_n
.link_m
);
5045 I915_WRITE(PIPE_LINK_N1(pipe
), m_n
.link_n
);
5048 ironlake_set_pll_edp(crtc
, adjusted_mode
->clock
);
5050 ironlake_set_pipeconf(crtc
, adjusted_mode
, dither
);
5052 intel_wait_for_vblank(dev
, pipe
);
5054 /* Set up the display plane register */
5055 I915_WRITE(DSPCNTR(plane
), DISPPLANE_GAMMA_ENABLE
);
5056 POSTING_READ(DSPCNTR(plane
));
5058 ret
= intel_pipe_set_base(crtc
, x
, y
, fb
);
5060 intel_update_watermarks(dev
);
5062 intel_update_linetime_watermarks(dev
, pipe
, adjusted_mode
);
5067 static int intel_crtc_mode_set(struct drm_crtc
*crtc
,
5068 struct drm_display_mode
*mode
,
5069 struct drm_display_mode
*adjusted_mode
,
5071 struct drm_framebuffer
*fb
)
5073 struct drm_device
*dev
= crtc
->dev
;
5074 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5075 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5076 int pipe
= intel_crtc
->pipe
;
5079 drm_vblank_pre_modeset(dev
, pipe
);
5081 ret
= dev_priv
->display
.crtc_mode_set(crtc
, mode
, adjusted_mode
,
5083 drm_vblank_post_modeset(dev
, pipe
);
5088 static bool intel_eld_uptodate(struct drm_connector
*connector
,
5089 int reg_eldv
, uint32_t bits_eldv
,
5090 int reg_elda
, uint32_t bits_elda
,
5093 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5094 uint8_t *eld
= connector
->eld
;
5097 i
= I915_READ(reg_eldv
);
5106 i
= I915_READ(reg_elda
);
5108 I915_WRITE(reg_elda
, i
);
5110 for (i
= 0; i
< eld
[2]; i
++)
5111 if (I915_READ(reg_edid
) != *((uint32_t *)eld
+ i
))
5117 static void g4x_write_eld(struct drm_connector
*connector
,
5118 struct drm_crtc
*crtc
)
5120 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5121 uint8_t *eld
= connector
->eld
;
5126 i
= I915_READ(G4X_AUD_VID_DID
);
5128 if (i
== INTEL_AUDIO_DEVBLC
|| i
== INTEL_AUDIO_DEVCL
)
5129 eldv
= G4X_ELDV_DEVCL_DEVBLC
;
5131 eldv
= G4X_ELDV_DEVCTG
;
5133 if (intel_eld_uptodate(connector
,
5134 G4X_AUD_CNTL_ST
, eldv
,
5135 G4X_AUD_CNTL_ST
, G4X_ELD_ADDR
,
5136 G4X_HDMIW_HDMIEDID
))
5139 i
= I915_READ(G4X_AUD_CNTL_ST
);
5140 i
&= ~(eldv
| G4X_ELD_ADDR
);
5141 len
= (i
>> 9) & 0x1f; /* ELD buffer size */
5142 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
5147 len
= min_t(uint8_t, eld
[2], len
);
5148 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
5149 for (i
= 0; i
< len
; i
++)
5150 I915_WRITE(G4X_HDMIW_HDMIEDID
, *((uint32_t *)eld
+ i
));
5152 i
= I915_READ(G4X_AUD_CNTL_ST
);
5154 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
5157 static void haswell_write_eld(struct drm_connector
*connector
,
5158 struct drm_crtc
*crtc
)
5160 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5161 uint8_t *eld
= connector
->eld
;
5162 struct drm_device
*dev
= crtc
->dev
;
5166 int pipe
= to_intel_crtc(crtc
)->pipe
;
5169 int hdmiw_hdmiedid
= HSW_AUD_EDID_DATA(pipe
);
5170 int aud_cntl_st
= HSW_AUD_DIP_ELD_CTRL(pipe
);
5171 int aud_config
= HSW_AUD_CFG(pipe
);
5172 int aud_cntrl_st2
= HSW_AUD_PIN_ELD_CP_VLD
;
5175 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
5177 /* Audio output enable */
5178 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
5179 tmp
= I915_READ(aud_cntrl_st2
);
5180 tmp
|= (AUDIO_OUTPUT_ENABLE_A
<< (pipe
* 4));
5181 I915_WRITE(aud_cntrl_st2
, tmp
);
5183 /* Wait for 1 vertical blank */
5184 intel_wait_for_vblank(dev
, pipe
);
5186 /* Set ELD valid state */
5187 tmp
= I915_READ(aud_cntrl_st2
);
5188 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp
);
5189 tmp
|= (AUDIO_ELD_VALID_A
<< (pipe
* 4));
5190 I915_WRITE(aud_cntrl_st2
, tmp
);
5191 tmp
= I915_READ(aud_cntrl_st2
);
5192 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp
);
5194 /* Enable HDMI mode */
5195 tmp
= I915_READ(aud_config
);
5196 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp
);
5197 /* clear N_programing_enable and N_value_index */
5198 tmp
&= ~(AUD_CONFIG_N_VALUE_INDEX
| AUD_CONFIG_N_PROG_ENABLE
);
5199 I915_WRITE(aud_config
, tmp
);
5201 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
5203 eldv
= AUDIO_ELD_VALID_A
<< (pipe
* 4);
5205 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
5206 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
5207 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
5208 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
5210 I915_WRITE(aud_config
, 0);
5212 if (intel_eld_uptodate(connector
,
5213 aud_cntrl_st2
, eldv
,
5214 aud_cntl_st
, IBX_ELD_ADDRESS
,
5218 i
= I915_READ(aud_cntrl_st2
);
5220 I915_WRITE(aud_cntrl_st2
, i
);
5225 i
= I915_READ(aud_cntl_st
);
5226 i
&= ~IBX_ELD_ADDRESS
;
5227 I915_WRITE(aud_cntl_st
, i
);
5228 i
= (i
>> 29) & DIP_PORT_SEL_MASK
; /* DIP_Port_Select, 0x1 = PortB */
5229 DRM_DEBUG_DRIVER("port num:%d\n", i
);
5231 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
5232 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
5233 for (i
= 0; i
< len
; i
++)
5234 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
5236 i
= I915_READ(aud_cntrl_st2
);
5238 I915_WRITE(aud_cntrl_st2
, i
);
5242 static void ironlake_write_eld(struct drm_connector
*connector
,
5243 struct drm_crtc
*crtc
)
5245 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5246 uint8_t *eld
= connector
->eld
;
5254 int pipe
= to_intel_crtc(crtc
)->pipe
;
5256 if (HAS_PCH_IBX(connector
->dev
)) {
5257 hdmiw_hdmiedid
= IBX_HDMIW_HDMIEDID(pipe
);
5258 aud_config
= IBX_AUD_CFG(pipe
);
5259 aud_cntl_st
= IBX_AUD_CNTL_ST(pipe
);
5260 aud_cntrl_st2
= IBX_AUD_CNTL_ST2
;
5262 hdmiw_hdmiedid
= CPT_HDMIW_HDMIEDID(pipe
);
5263 aud_config
= CPT_AUD_CFG(pipe
);
5264 aud_cntl_st
= CPT_AUD_CNTL_ST(pipe
);
5265 aud_cntrl_st2
= CPT_AUD_CNTRL_ST2
;
5268 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
5270 i
= I915_READ(aud_cntl_st
);
5271 i
= (i
>> 29) & DIP_PORT_SEL_MASK
; /* DIP_Port_Select, 0x1 = PortB */
5273 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
5274 /* operate blindly on all ports */
5275 eldv
= IBX_ELD_VALIDB
;
5276 eldv
|= IBX_ELD_VALIDB
<< 4;
5277 eldv
|= IBX_ELD_VALIDB
<< 8;
5279 DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i
);
5280 eldv
= IBX_ELD_VALIDB
<< ((i
- 1) * 4);
5283 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
5284 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
5285 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
5286 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
5288 I915_WRITE(aud_config
, 0);
5290 if (intel_eld_uptodate(connector
,
5291 aud_cntrl_st2
, eldv
,
5292 aud_cntl_st
, IBX_ELD_ADDRESS
,
5296 i
= I915_READ(aud_cntrl_st2
);
5298 I915_WRITE(aud_cntrl_st2
, i
);
5303 i
= I915_READ(aud_cntl_st
);
5304 i
&= ~IBX_ELD_ADDRESS
;
5305 I915_WRITE(aud_cntl_st
, i
);
5307 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
5308 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
5309 for (i
= 0; i
< len
; i
++)
5310 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
5312 i
= I915_READ(aud_cntrl_st2
);
5314 I915_WRITE(aud_cntrl_st2
, i
);
5317 void intel_write_eld(struct drm_encoder
*encoder
,
5318 struct drm_display_mode
*mode
)
5320 struct drm_crtc
*crtc
= encoder
->crtc
;
5321 struct drm_connector
*connector
;
5322 struct drm_device
*dev
= encoder
->dev
;
5323 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5325 connector
= drm_select_eld(encoder
, mode
);
5329 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
5331 drm_get_connector_name(connector
),
5332 connector
->encoder
->base
.id
,
5333 drm_get_encoder_name(connector
->encoder
));
5335 connector
->eld
[6] = drm_av_sync_delay(connector
, mode
) / 2;
5337 if (dev_priv
->display
.write_eld
)
5338 dev_priv
->display
.write_eld(connector
, crtc
);
5341 /** Loads the palette/gamma unit for the CRTC with the prepared values */
5342 void intel_crtc_load_lut(struct drm_crtc
*crtc
)
5344 struct drm_device
*dev
= crtc
->dev
;
5345 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5346 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5347 int palreg
= PALETTE(intel_crtc
->pipe
);
5350 /* The clocks have to be on to load the palette. */
5351 if (!crtc
->enabled
|| !intel_crtc
->active
)
5354 /* use legacy palette for Ironlake */
5355 if (HAS_PCH_SPLIT(dev
))
5356 palreg
= LGC_PALETTE(intel_crtc
->pipe
);
5358 for (i
= 0; i
< 256; i
++) {
5359 I915_WRITE(palreg
+ 4 * i
,
5360 (intel_crtc
->lut_r
[i
] << 16) |
5361 (intel_crtc
->lut_g
[i
] << 8) |
5362 intel_crtc
->lut_b
[i
]);
5366 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
)
5368 struct drm_device
*dev
= crtc
->dev
;
5369 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5370 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5371 bool visible
= base
!= 0;
5374 if (intel_crtc
->cursor_visible
== visible
)
5377 cntl
= I915_READ(_CURACNTR
);
5379 /* On these chipsets we can only modify the base whilst
5380 * the cursor is disabled.
5382 I915_WRITE(_CURABASE
, base
);
5384 cntl
&= ~(CURSOR_FORMAT_MASK
);
5385 /* XXX width must be 64, stride 256 => 0x00 << 28 */
5386 cntl
|= CURSOR_ENABLE
|
5387 CURSOR_GAMMA_ENABLE
|
5390 cntl
&= ~(CURSOR_ENABLE
| CURSOR_GAMMA_ENABLE
);
5391 I915_WRITE(_CURACNTR
, cntl
);
5393 intel_crtc
->cursor_visible
= visible
;
5396 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
)
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 bool visible
= base
!= 0;
5404 if (intel_crtc
->cursor_visible
!= visible
) {
5405 uint32_t cntl
= I915_READ(CURCNTR(pipe
));
5407 cntl
&= ~(CURSOR_MODE
| MCURSOR_PIPE_SELECT
);
5408 cntl
|= CURSOR_MODE_64_ARGB_AX
| MCURSOR_GAMMA_ENABLE
;
5409 cntl
|= pipe
<< 28; /* Connect to correct pipe */
5411 cntl
&= ~(CURSOR_MODE
| MCURSOR_GAMMA_ENABLE
);
5412 cntl
|= CURSOR_MODE_DISABLE
;
5414 I915_WRITE(CURCNTR(pipe
), cntl
);
5416 intel_crtc
->cursor_visible
= visible
;
5418 /* and commit changes on next vblank */
5419 I915_WRITE(CURBASE(pipe
), base
);
5422 static void ivb_update_cursor(struct drm_crtc
*crtc
, u32 base
)
5424 struct drm_device
*dev
= crtc
->dev
;
5425 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5426 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5427 int pipe
= intel_crtc
->pipe
;
5428 bool visible
= base
!= 0;
5430 if (intel_crtc
->cursor_visible
!= visible
) {
5431 uint32_t cntl
= I915_READ(CURCNTR_IVB(pipe
));
5433 cntl
&= ~CURSOR_MODE
;
5434 cntl
|= CURSOR_MODE_64_ARGB_AX
| MCURSOR_GAMMA_ENABLE
;
5436 cntl
&= ~(CURSOR_MODE
| MCURSOR_GAMMA_ENABLE
);
5437 cntl
|= CURSOR_MODE_DISABLE
;
5439 I915_WRITE(CURCNTR_IVB(pipe
), cntl
);
5441 intel_crtc
->cursor_visible
= visible
;
5443 /* and commit changes on next vblank */
5444 I915_WRITE(CURBASE_IVB(pipe
), base
);
5447 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
5448 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
5451 struct drm_device
*dev
= crtc
->dev
;
5452 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5453 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5454 int pipe
= intel_crtc
->pipe
;
5455 int x
= intel_crtc
->cursor_x
;
5456 int y
= intel_crtc
->cursor_y
;
5462 if (on
&& crtc
->enabled
&& crtc
->fb
) {
5463 base
= intel_crtc
->cursor_addr
;
5464 if (x
> (int) crtc
->fb
->width
)
5467 if (y
> (int) crtc
->fb
->height
)
5473 if (x
+ intel_crtc
->cursor_width
< 0)
5476 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
5479 pos
|= x
<< CURSOR_X_SHIFT
;
5482 if (y
+ intel_crtc
->cursor_height
< 0)
5485 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
5488 pos
|= y
<< CURSOR_Y_SHIFT
;
5490 visible
= base
!= 0;
5491 if (!visible
&& !intel_crtc
->cursor_visible
)
5494 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
)) {
5495 I915_WRITE(CURPOS_IVB(pipe
), pos
);
5496 ivb_update_cursor(crtc
, base
);
5498 I915_WRITE(CURPOS(pipe
), pos
);
5499 if (IS_845G(dev
) || IS_I865G(dev
))
5500 i845_update_cursor(crtc
, base
);
5502 i9xx_update_cursor(crtc
, base
);
5506 static int intel_crtc_cursor_set(struct drm_crtc
*crtc
,
5507 struct drm_file
*file
,
5509 uint32_t width
, uint32_t height
)
5511 struct drm_device
*dev
= crtc
->dev
;
5512 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5513 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5514 struct drm_i915_gem_object
*obj
;
5518 /* if we want to turn off the cursor ignore width and height */
5520 DRM_DEBUG_KMS("cursor off\n");
5523 mutex_lock(&dev
->struct_mutex
);
5527 /* Currently we only support 64x64 cursors */
5528 if (width
!= 64 || height
!= 64) {
5529 DRM_ERROR("we currently only support 64x64 cursors\n");
5533 obj
= to_intel_bo(drm_gem_object_lookup(dev
, file
, handle
));
5534 if (&obj
->base
== NULL
)
5537 if (obj
->base
.size
< width
* height
* 4) {
5538 DRM_ERROR("buffer is to small\n");
5543 /* we only need to pin inside GTT if cursor is non-phy */
5544 mutex_lock(&dev
->struct_mutex
);
5545 if (!dev_priv
->info
->cursor_needs_physical
) {
5546 if (obj
->tiling_mode
) {
5547 DRM_ERROR("cursor cannot be tiled\n");
5552 ret
= i915_gem_object_pin_to_display_plane(obj
, 0, NULL
);
5554 DRM_ERROR("failed to move cursor bo into the GTT\n");
5558 ret
= i915_gem_object_put_fence(obj
);
5560 DRM_ERROR("failed to release fence for cursor");
5564 addr
= obj
->gtt_offset
;
5566 int align
= IS_I830(dev
) ? 16 * 1024 : 256;
5567 ret
= i915_gem_attach_phys_object(dev
, obj
,
5568 (intel_crtc
->pipe
== 0) ? I915_GEM_PHYS_CURSOR_0
: I915_GEM_PHYS_CURSOR_1
,
5571 DRM_ERROR("failed to attach phys object\n");
5574 addr
= obj
->phys_obj
->handle
->busaddr
;
5578 I915_WRITE(CURSIZE
, (height
<< 12) | width
);
5581 if (intel_crtc
->cursor_bo
) {
5582 if (dev_priv
->info
->cursor_needs_physical
) {
5583 if (intel_crtc
->cursor_bo
!= obj
)
5584 i915_gem_detach_phys_object(dev
, intel_crtc
->cursor_bo
);
5586 i915_gem_object_unpin(intel_crtc
->cursor_bo
);
5587 drm_gem_object_unreference(&intel_crtc
->cursor_bo
->base
);
5590 mutex_unlock(&dev
->struct_mutex
);
5592 intel_crtc
->cursor_addr
= addr
;
5593 intel_crtc
->cursor_bo
= obj
;
5594 intel_crtc
->cursor_width
= width
;
5595 intel_crtc
->cursor_height
= height
;
5597 intel_crtc_update_cursor(crtc
, true);
5601 i915_gem_object_unpin(obj
);
5603 mutex_unlock(&dev
->struct_mutex
);
5605 drm_gem_object_unreference_unlocked(&obj
->base
);
5609 static int intel_crtc_cursor_move(struct drm_crtc
*crtc
, int x
, int y
)
5611 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5613 intel_crtc
->cursor_x
= x
;
5614 intel_crtc
->cursor_y
= y
;
5616 intel_crtc_update_cursor(crtc
, true);
5621 /** Sets the color ramps on behalf of RandR */
5622 void intel_crtc_fb_gamma_set(struct drm_crtc
*crtc
, u16 red
, u16 green
,
5623 u16 blue
, int regno
)
5625 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5627 intel_crtc
->lut_r
[regno
] = red
>> 8;
5628 intel_crtc
->lut_g
[regno
] = green
>> 8;
5629 intel_crtc
->lut_b
[regno
] = blue
>> 8;
5632 void intel_crtc_fb_gamma_get(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
5633 u16
*blue
, int regno
)
5635 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5637 *red
= intel_crtc
->lut_r
[regno
] << 8;
5638 *green
= intel_crtc
->lut_g
[regno
] << 8;
5639 *blue
= intel_crtc
->lut_b
[regno
] << 8;
5642 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
5643 u16
*blue
, uint32_t start
, uint32_t size
)
5645 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
5646 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5648 for (i
= start
; i
< end
; i
++) {
5649 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
5650 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
5651 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
5654 intel_crtc_load_lut(crtc
);
5658 * Get a pipe with a simple mode set on it for doing load-based monitor
5661 * It will be up to the load-detect code to adjust the pipe as appropriate for
5662 * its requirements. The pipe will be connected to no other encoders.
5664 * Currently this code will only succeed if there is a pipe with no encoders
5665 * configured for it. In the future, it could choose to temporarily disable
5666 * some outputs to free up a pipe for its use.
5668 * \return crtc, or NULL if no pipes are available.
5671 /* VESA 640x480x72Hz mode to set on the pipe */
5672 static struct drm_display_mode load_detect_mode
= {
5673 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
5674 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
5677 static struct drm_framebuffer
*
5678 intel_framebuffer_create(struct drm_device
*dev
,
5679 struct drm_mode_fb_cmd2
*mode_cmd
,
5680 struct drm_i915_gem_object
*obj
)
5682 struct intel_framebuffer
*intel_fb
;
5685 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
5687 drm_gem_object_unreference_unlocked(&obj
->base
);
5688 return ERR_PTR(-ENOMEM
);
5691 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
5693 drm_gem_object_unreference_unlocked(&obj
->base
);
5695 return ERR_PTR(ret
);
5698 return &intel_fb
->base
;
5702 intel_framebuffer_pitch_for_width(int width
, int bpp
)
5704 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
5705 return ALIGN(pitch
, 64);
5709 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
5711 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
5712 return ALIGN(pitch
* mode
->vdisplay
, PAGE_SIZE
);
5715 static struct drm_framebuffer
*
5716 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
5717 struct drm_display_mode
*mode
,
5720 struct drm_i915_gem_object
*obj
;
5721 struct drm_mode_fb_cmd2 mode_cmd
;
5723 obj
= i915_gem_alloc_object(dev
,
5724 intel_framebuffer_size_for_mode(mode
, bpp
));
5726 return ERR_PTR(-ENOMEM
);
5728 mode_cmd
.width
= mode
->hdisplay
;
5729 mode_cmd
.height
= mode
->vdisplay
;
5730 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
5732 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
5734 return intel_framebuffer_create(dev
, &mode_cmd
, obj
);
5737 static struct drm_framebuffer
*
5738 mode_fits_in_fbdev(struct drm_device
*dev
,
5739 struct drm_display_mode
*mode
)
5741 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5742 struct drm_i915_gem_object
*obj
;
5743 struct drm_framebuffer
*fb
;
5745 if (dev_priv
->fbdev
== NULL
)
5748 obj
= dev_priv
->fbdev
->ifb
.obj
;
5752 fb
= &dev_priv
->fbdev
->ifb
.base
;
5753 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
5754 fb
->bits_per_pixel
))
5757 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
5763 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
5764 struct drm_display_mode
*mode
,
5765 struct intel_load_detect_pipe
*old
)
5767 struct intel_crtc
*intel_crtc
;
5768 struct intel_encoder
*intel_encoder
=
5769 intel_attached_encoder(connector
);
5770 struct drm_crtc
*possible_crtc
;
5771 struct drm_encoder
*encoder
= &intel_encoder
->base
;
5772 struct drm_crtc
*crtc
= NULL
;
5773 struct drm_device
*dev
= encoder
->dev
;
5774 struct drm_framebuffer
*fb
;
5777 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
5778 connector
->base
.id
, drm_get_connector_name(connector
),
5779 encoder
->base
.id
, drm_get_encoder_name(encoder
));
5782 * Algorithm gets a little messy:
5784 * - if the connector already has an assigned crtc, use it (but make
5785 * sure it's on first)
5787 * - try to find the first unused crtc that can drive this connector,
5788 * and use that if we find one
5791 /* See if we already have a CRTC for this connector */
5792 if (encoder
->crtc
) {
5793 crtc
= encoder
->crtc
;
5795 old
->dpms_mode
= connector
->dpms
;
5796 old
->load_detect_temp
= false;
5798 /* Make sure the crtc and connector are running */
5799 if (connector
->dpms
!= DRM_MODE_DPMS_ON
)
5800 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_ON
);
5805 /* Find an unused one (if possible) */
5806 list_for_each_entry(possible_crtc
, &dev
->mode_config
.crtc_list
, head
) {
5808 if (!(encoder
->possible_crtcs
& (1 << i
)))
5810 if (!possible_crtc
->enabled
) {
5811 crtc
= possible_crtc
;
5817 * If we didn't find an unused CRTC, don't use any.
5820 DRM_DEBUG_KMS("no pipe available for load-detect\n");
5824 intel_encoder
->new_crtc
= to_intel_crtc(crtc
);
5825 to_intel_connector(connector
)->new_encoder
= intel_encoder
;
5827 intel_crtc
= to_intel_crtc(crtc
);
5828 old
->dpms_mode
= connector
->dpms
;
5829 old
->load_detect_temp
= true;
5830 old
->release_fb
= NULL
;
5833 mode
= &load_detect_mode
;
5835 /* We need a framebuffer large enough to accommodate all accesses
5836 * that the plane may generate whilst we perform load detection.
5837 * We can not rely on the fbcon either being present (we get called
5838 * during its initialisation to detect all boot displays, or it may
5839 * not even exist) or that it is large enough to satisfy the
5842 fb
= mode_fits_in_fbdev(dev
, mode
);
5844 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
5845 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
5846 old
->release_fb
= fb
;
5848 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
5850 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
5854 if (!intel_set_mode(crtc
, mode
, 0, 0, fb
)) {
5855 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
5856 if (old
->release_fb
)
5857 old
->release_fb
->funcs
->destroy(old
->release_fb
);
5861 /* let the connector get through one full cycle before testing */
5862 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
5866 connector
->encoder
= NULL
;
5867 encoder
->crtc
= NULL
;
5871 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
5872 struct intel_load_detect_pipe
*old
)
5874 struct intel_encoder
*intel_encoder
=
5875 intel_attached_encoder(connector
);
5876 struct drm_encoder
*encoder
= &intel_encoder
->base
;
5878 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
5879 connector
->base
.id
, drm_get_connector_name(connector
),
5880 encoder
->base
.id
, drm_get_encoder_name(encoder
));
5882 if (old
->load_detect_temp
) {
5883 struct drm_crtc
*crtc
= encoder
->crtc
;
5885 to_intel_connector(connector
)->new_encoder
= NULL
;
5886 intel_encoder
->new_crtc
= NULL
;
5887 intel_set_mode(crtc
, NULL
, 0, 0, NULL
);
5889 if (old
->release_fb
)
5890 old
->release_fb
->funcs
->destroy(old
->release_fb
);
5895 /* Switch crtc and encoder back off if necessary */
5896 if (old
->dpms_mode
!= DRM_MODE_DPMS_ON
)
5897 connector
->funcs
->dpms(connector
, old
->dpms_mode
);
5900 /* Returns the clock of the currently programmed mode of the given pipe. */
5901 static int intel_crtc_clock_get(struct drm_device
*dev
, struct drm_crtc
*crtc
)
5903 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5904 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5905 int pipe
= intel_crtc
->pipe
;
5906 u32 dpll
= I915_READ(DPLL(pipe
));
5908 intel_clock_t clock
;
5910 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
5911 fp
= I915_READ(FP0(pipe
));
5913 fp
= I915_READ(FP1(pipe
));
5915 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
5916 if (IS_PINEVIEW(dev
)) {
5917 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
5918 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
5920 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
5921 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
5924 if (!IS_GEN2(dev
)) {
5925 if (IS_PINEVIEW(dev
))
5926 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
5927 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
5929 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
5930 DPLL_FPA01_P1_POST_DIV_SHIFT
);
5932 switch (dpll
& DPLL_MODE_MASK
) {
5933 case DPLLB_MODE_DAC_SERIAL
:
5934 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
5937 case DPLLB_MODE_LVDS
:
5938 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
5942 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
5943 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
5947 /* XXX: Handle the 100Mhz refclk */
5948 intel_clock(dev
, 96000, &clock
);
5950 bool is_lvds
= (pipe
== 1) && (I915_READ(LVDS
) & LVDS_PORT_EN
);
5953 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
5954 DPLL_FPA01_P1_POST_DIV_SHIFT
);
5957 if ((dpll
& PLL_REF_INPUT_MASK
) ==
5958 PLLB_REF_INPUT_SPREADSPECTRUMIN
) {
5959 /* XXX: might not be 66MHz */
5960 intel_clock(dev
, 66000, &clock
);
5962 intel_clock(dev
, 48000, &clock
);
5964 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
5967 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
5968 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
5970 if (dpll
& PLL_P2_DIVIDE_BY_4
)
5975 intel_clock(dev
, 48000, &clock
);
5979 /* XXX: It would be nice to validate the clocks, but we can't reuse
5980 * i830PllIsValid() because it relies on the xf86_config connector
5981 * configuration being accurate, which it isn't necessarily.
5987 /** Returns the currently programmed mode of the given pipe. */
5988 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
5989 struct drm_crtc
*crtc
)
5991 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5992 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5993 int pipe
= intel_crtc
->pipe
;
5994 struct drm_display_mode
*mode
;
5995 int htot
= I915_READ(HTOTAL(pipe
));
5996 int hsync
= I915_READ(HSYNC(pipe
));
5997 int vtot
= I915_READ(VTOTAL(pipe
));
5998 int vsync
= I915_READ(VSYNC(pipe
));
6000 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
6004 mode
->clock
= intel_crtc_clock_get(dev
, crtc
);
6005 mode
->hdisplay
= (htot
& 0xffff) + 1;
6006 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
6007 mode
->hsync_start
= (hsync
& 0xffff) + 1;
6008 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
6009 mode
->vdisplay
= (vtot
& 0xffff) + 1;
6010 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
6011 mode
->vsync_start
= (vsync
& 0xffff) + 1;
6012 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
6014 drm_mode_set_name(mode
);
6019 static void intel_increase_pllclock(struct drm_crtc
*crtc
)
6021 struct drm_device
*dev
= crtc
->dev
;
6022 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6023 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6024 int pipe
= intel_crtc
->pipe
;
6025 int dpll_reg
= DPLL(pipe
);
6028 if (HAS_PCH_SPLIT(dev
))
6031 if (!dev_priv
->lvds_downclock_avail
)
6034 dpll
= I915_READ(dpll_reg
);
6035 if (!HAS_PIPE_CXSR(dev
) && (dpll
& DISPLAY_RATE_SELECT_FPA1
)) {
6036 DRM_DEBUG_DRIVER("upclocking LVDS\n");
6038 assert_panel_unlocked(dev_priv
, pipe
);
6040 dpll
&= ~DISPLAY_RATE_SELECT_FPA1
;
6041 I915_WRITE(dpll_reg
, dpll
);
6042 intel_wait_for_vblank(dev
, pipe
);
6044 dpll
= I915_READ(dpll_reg
);
6045 if (dpll
& DISPLAY_RATE_SELECT_FPA1
)
6046 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
6050 static void intel_decrease_pllclock(struct drm_crtc
*crtc
)
6052 struct drm_device
*dev
= crtc
->dev
;
6053 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6054 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6056 if (HAS_PCH_SPLIT(dev
))
6059 if (!dev_priv
->lvds_downclock_avail
)
6063 * Since this is called by a timer, we should never get here in
6066 if (!HAS_PIPE_CXSR(dev
) && intel_crtc
->lowfreq_avail
) {
6067 int pipe
= intel_crtc
->pipe
;
6068 int dpll_reg
= DPLL(pipe
);
6071 DRM_DEBUG_DRIVER("downclocking LVDS\n");
6073 assert_panel_unlocked(dev_priv
, pipe
);
6075 dpll
= I915_READ(dpll_reg
);
6076 dpll
|= DISPLAY_RATE_SELECT_FPA1
;
6077 I915_WRITE(dpll_reg
, dpll
);
6078 intel_wait_for_vblank(dev
, pipe
);
6079 dpll
= I915_READ(dpll_reg
);
6080 if (!(dpll
& DISPLAY_RATE_SELECT_FPA1
))
6081 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
6086 void intel_mark_busy(struct drm_device
*dev
)
6088 i915_update_gfx_val(dev
->dev_private
);
6091 void intel_mark_idle(struct drm_device
*dev
)
6095 void intel_mark_fb_busy(struct drm_i915_gem_object
*obj
)
6097 struct drm_device
*dev
= obj
->base
.dev
;
6098 struct drm_crtc
*crtc
;
6100 if (!i915_powersave
)
6103 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
6107 if (to_intel_framebuffer(crtc
->fb
)->obj
== obj
)
6108 intel_increase_pllclock(crtc
);
6112 void intel_mark_fb_idle(struct drm_i915_gem_object
*obj
)
6114 struct drm_device
*dev
= obj
->base
.dev
;
6115 struct drm_crtc
*crtc
;
6117 if (!i915_powersave
)
6120 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
6124 if (to_intel_framebuffer(crtc
->fb
)->obj
== obj
)
6125 intel_decrease_pllclock(crtc
);
6129 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
6131 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6132 struct drm_device
*dev
= crtc
->dev
;
6133 struct intel_unpin_work
*work
;
6134 unsigned long flags
;
6136 spin_lock_irqsave(&dev
->event_lock
, flags
);
6137 work
= intel_crtc
->unpin_work
;
6138 intel_crtc
->unpin_work
= NULL
;
6139 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6142 cancel_work_sync(&work
->work
);
6146 drm_crtc_cleanup(crtc
);
6151 static void intel_unpin_work_fn(struct work_struct
*__work
)
6153 struct intel_unpin_work
*work
=
6154 container_of(__work
, struct intel_unpin_work
, work
);
6156 mutex_lock(&work
->dev
->struct_mutex
);
6157 intel_unpin_fb_obj(work
->old_fb_obj
);
6158 drm_gem_object_unreference(&work
->pending_flip_obj
->base
);
6159 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
6161 intel_update_fbc(work
->dev
);
6162 mutex_unlock(&work
->dev
->struct_mutex
);
6166 static void do_intel_finish_page_flip(struct drm_device
*dev
,
6167 struct drm_crtc
*crtc
)
6169 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6170 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6171 struct intel_unpin_work
*work
;
6172 struct drm_i915_gem_object
*obj
;
6173 struct drm_pending_vblank_event
*e
;
6174 struct timeval tnow
, tvbl
;
6175 unsigned long flags
;
6177 /* Ignore early vblank irqs */
6178 if (intel_crtc
== NULL
)
6181 do_gettimeofday(&tnow
);
6183 spin_lock_irqsave(&dev
->event_lock
, flags
);
6184 work
= intel_crtc
->unpin_work
;
6185 if (work
== NULL
|| !work
->pending
) {
6186 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6190 intel_crtc
->unpin_work
= NULL
;
6194 e
->event
.sequence
= drm_vblank_count_and_time(dev
, intel_crtc
->pipe
, &tvbl
);
6196 /* Called before vblank count and timestamps have
6197 * been updated for the vblank interval of flip
6198 * completion? Need to increment vblank count and
6199 * add one videorefresh duration to returned timestamp
6200 * to account for this. We assume this happened if we
6201 * get called over 0.9 frame durations after the last
6202 * timestamped vblank.
6204 * This calculation can not be used with vrefresh rates
6205 * below 5Hz (10Hz to be on the safe side) without
6206 * promoting to 64 integers.
6208 if (10 * (timeval_to_ns(&tnow
) - timeval_to_ns(&tvbl
)) >
6209 9 * crtc
->framedur_ns
) {
6210 e
->event
.sequence
++;
6211 tvbl
= ns_to_timeval(timeval_to_ns(&tvbl
) +
6215 e
->event
.tv_sec
= tvbl
.tv_sec
;
6216 e
->event
.tv_usec
= tvbl
.tv_usec
;
6218 list_add_tail(&e
->base
.link
,
6219 &e
->base
.file_priv
->event_list
);
6220 wake_up_interruptible(&e
->base
.file_priv
->event_wait
);
6223 drm_vblank_put(dev
, intel_crtc
->pipe
);
6225 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6227 obj
= work
->old_fb_obj
;
6229 atomic_clear_mask(1 << intel_crtc
->plane
,
6230 &obj
->pending_flip
.counter
);
6231 if (atomic_read(&obj
->pending_flip
) == 0)
6232 wake_up(&dev_priv
->pending_flip_queue
);
6234 schedule_work(&work
->work
);
6236 trace_i915_flip_complete(intel_crtc
->plane
, work
->pending_flip_obj
);
6239 void intel_finish_page_flip(struct drm_device
*dev
, int pipe
)
6241 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6242 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
6244 do_intel_finish_page_flip(dev
, crtc
);
6247 void intel_finish_page_flip_plane(struct drm_device
*dev
, int plane
)
6249 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6250 struct drm_crtc
*crtc
= dev_priv
->plane_to_crtc_mapping
[plane
];
6252 do_intel_finish_page_flip(dev
, crtc
);
6255 void intel_prepare_page_flip(struct drm_device
*dev
, int plane
)
6257 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6258 struct intel_crtc
*intel_crtc
=
6259 to_intel_crtc(dev_priv
->plane_to_crtc_mapping
[plane
]);
6260 unsigned long flags
;
6262 spin_lock_irqsave(&dev
->event_lock
, flags
);
6263 if (intel_crtc
->unpin_work
) {
6264 if ((++intel_crtc
->unpin_work
->pending
) > 1)
6265 DRM_ERROR("Prepared flip multiple times\n");
6267 DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n");
6269 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6272 static int intel_gen2_queue_flip(struct drm_device
*dev
,
6273 struct drm_crtc
*crtc
,
6274 struct drm_framebuffer
*fb
,
6275 struct drm_i915_gem_object
*obj
)
6277 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6278 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6280 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
6283 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
6287 ret
= intel_ring_begin(ring
, 6);
6291 /* Can't queue multiple flips, so wait for the previous
6292 * one to finish before executing the next.
6294 if (intel_crtc
->plane
)
6295 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
6297 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
6298 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
6299 intel_ring_emit(ring
, MI_NOOP
);
6300 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
6301 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
6302 intel_ring_emit(ring
, fb
->pitches
[0]);
6303 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
6304 intel_ring_emit(ring
, 0); /* aux display base address, unused */
6305 intel_ring_advance(ring
);
6309 intel_unpin_fb_obj(obj
);
6314 static int intel_gen3_queue_flip(struct drm_device
*dev
,
6315 struct drm_crtc
*crtc
,
6316 struct drm_framebuffer
*fb
,
6317 struct drm_i915_gem_object
*obj
)
6319 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6320 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6322 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
6325 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
6329 ret
= intel_ring_begin(ring
, 6);
6333 if (intel_crtc
->plane
)
6334 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
6336 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
6337 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
6338 intel_ring_emit(ring
, MI_NOOP
);
6339 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
6340 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
6341 intel_ring_emit(ring
, fb
->pitches
[0]);
6342 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
6343 intel_ring_emit(ring
, MI_NOOP
);
6345 intel_ring_advance(ring
);
6349 intel_unpin_fb_obj(obj
);
6354 static int intel_gen4_queue_flip(struct drm_device
*dev
,
6355 struct drm_crtc
*crtc
,
6356 struct drm_framebuffer
*fb
,
6357 struct drm_i915_gem_object
*obj
)
6359 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6360 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6361 uint32_t pf
, pipesrc
;
6362 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
6365 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
6369 ret
= intel_ring_begin(ring
, 4);
6373 /* i965+ uses the linear or tiled offsets from the
6374 * Display Registers (which do not change across a page-flip)
6375 * so we need only reprogram the base address.
6377 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
6378 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
6379 intel_ring_emit(ring
, fb
->pitches
[0]);
6380 intel_ring_emit(ring
,
6381 (obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
) |
6384 /* XXX Enabling the panel-fitter across page-flip is so far
6385 * untested on non-native modes, so ignore it for now.
6386 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
6389 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
6390 intel_ring_emit(ring
, pf
| pipesrc
);
6391 intel_ring_advance(ring
);
6395 intel_unpin_fb_obj(obj
);
6400 static int intel_gen6_queue_flip(struct drm_device
*dev
,
6401 struct drm_crtc
*crtc
,
6402 struct drm_framebuffer
*fb
,
6403 struct drm_i915_gem_object
*obj
)
6405 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6406 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6407 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
6408 uint32_t pf
, pipesrc
;
6411 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
6415 ret
= intel_ring_begin(ring
, 4);
6419 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
6420 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
6421 intel_ring_emit(ring
, fb
->pitches
[0] | obj
->tiling_mode
);
6422 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
6424 /* Contrary to the suggestions in the documentation,
6425 * "Enable Panel Fitter" does not seem to be required when page
6426 * flipping with a non-native mode, and worse causes a normal
6428 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
6431 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
6432 intel_ring_emit(ring
, pf
| pipesrc
);
6433 intel_ring_advance(ring
);
6437 intel_unpin_fb_obj(obj
);
6443 * On gen7 we currently use the blit ring because (in early silicon at least)
6444 * the render ring doesn't give us interrpts for page flip completion, which
6445 * means clients will hang after the first flip is queued. Fortunately the
6446 * blit ring generates interrupts properly, so use it instead.
6448 static int intel_gen7_queue_flip(struct drm_device
*dev
,
6449 struct drm_crtc
*crtc
,
6450 struct drm_framebuffer
*fb
,
6451 struct drm_i915_gem_object
*obj
)
6453 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6454 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6455 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[BCS
];
6456 uint32_t plane_bit
= 0;
6459 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
6463 switch(intel_crtc
->plane
) {
6465 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
6468 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
6471 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
6474 WARN_ONCE(1, "unknown plane in flip command\n");
6479 ret
= intel_ring_begin(ring
, 4);
6483 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
6484 intel_ring_emit(ring
, (fb
->pitches
[0] | obj
->tiling_mode
));
6485 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
6486 intel_ring_emit(ring
, (MI_NOOP
));
6487 intel_ring_advance(ring
);
6491 intel_unpin_fb_obj(obj
);
6496 static int intel_default_queue_flip(struct drm_device
*dev
,
6497 struct drm_crtc
*crtc
,
6498 struct drm_framebuffer
*fb
,
6499 struct drm_i915_gem_object
*obj
)
6504 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
6505 struct drm_framebuffer
*fb
,
6506 struct drm_pending_vblank_event
*event
)
6508 struct drm_device
*dev
= crtc
->dev
;
6509 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6510 struct intel_framebuffer
*intel_fb
;
6511 struct drm_i915_gem_object
*obj
;
6512 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6513 struct intel_unpin_work
*work
;
6514 unsigned long flags
;
6517 /* Can't change pixel format via MI display flips. */
6518 if (fb
->pixel_format
!= crtc
->fb
->pixel_format
)
6522 * TILEOFF/LINOFF registers can't be changed via MI display flips.
6523 * Note that pitch changes could also affect these register.
6525 if (INTEL_INFO(dev
)->gen
> 3 &&
6526 (fb
->offsets
[0] != crtc
->fb
->offsets
[0] ||
6527 fb
->pitches
[0] != crtc
->fb
->pitches
[0]))
6530 work
= kzalloc(sizeof *work
, GFP_KERNEL
);
6534 work
->event
= event
;
6535 work
->dev
= crtc
->dev
;
6536 intel_fb
= to_intel_framebuffer(crtc
->fb
);
6537 work
->old_fb_obj
= intel_fb
->obj
;
6538 INIT_WORK(&work
->work
, intel_unpin_work_fn
);
6540 ret
= drm_vblank_get(dev
, intel_crtc
->pipe
);
6544 /* We borrow the event spin lock for protecting unpin_work */
6545 spin_lock_irqsave(&dev
->event_lock
, flags
);
6546 if (intel_crtc
->unpin_work
) {
6547 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6549 drm_vblank_put(dev
, intel_crtc
->pipe
);
6551 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
6554 intel_crtc
->unpin_work
= work
;
6555 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6557 intel_fb
= to_intel_framebuffer(fb
);
6558 obj
= intel_fb
->obj
;
6560 ret
= i915_mutex_lock_interruptible(dev
);
6564 /* Reference the objects for the scheduled work. */
6565 drm_gem_object_reference(&work
->old_fb_obj
->base
);
6566 drm_gem_object_reference(&obj
->base
);
6570 work
->pending_flip_obj
= obj
;
6572 work
->enable_stall_check
= true;
6574 /* Block clients from rendering to the new back buffer until
6575 * the flip occurs and the object is no longer visible.
6577 atomic_add(1 << intel_crtc
->plane
, &work
->old_fb_obj
->pending_flip
);
6579 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
);
6581 goto cleanup_pending
;
6583 intel_disable_fbc(dev
);
6584 intel_mark_fb_busy(obj
);
6585 mutex_unlock(&dev
->struct_mutex
);
6587 trace_i915_flip_request(intel_crtc
->plane
, obj
);
6592 atomic_sub(1 << intel_crtc
->plane
, &work
->old_fb_obj
->pending_flip
);
6593 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
6594 drm_gem_object_unreference(&obj
->base
);
6595 mutex_unlock(&dev
->struct_mutex
);
6598 spin_lock_irqsave(&dev
->event_lock
, flags
);
6599 intel_crtc
->unpin_work
= NULL
;
6600 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6602 drm_vblank_put(dev
, intel_crtc
->pipe
);
6609 static struct drm_crtc_helper_funcs intel_helper_funcs
= {
6610 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
6611 .load_lut
= intel_crtc_load_lut
,
6612 .disable
= intel_crtc_noop
,
6615 bool intel_encoder_check_is_cloned(struct intel_encoder
*encoder
)
6617 struct intel_encoder
*other_encoder
;
6618 struct drm_crtc
*crtc
= &encoder
->new_crtc
->base
;
6623 list_for_each_entry(other_encoder
,
6624 &crtc
->dev
->mode_config
.encoder_list
,
6627 if (&other_encoder
->new_crtc
->base
!= crtc
||
6628 encoder
== other_encoder
)
6637 static bool intel_encoder_crtc_ok(struct drm_encoder
*encoder
,
6638 struct drm_crtc
*crtc
)
6640 struct drm_device
*dev
;
6641 struct drm_crtc
*tmp
;
6644 WARN(!crtc
, "checking null crtc?\n");
6648 list_for_each_entry(tmp
, &dev
->mode_config
.crtc_list
, head
) {
6654 if (encoder
->possible_crtcs
& crtc_mask
)
6660 * intel_modeset_update_staged_output_state
6662 * Updates the staged output configuration state, e.g. after we've read out the
6665 static void intel_modeset_update_staged_output_state(struct drm_device
*dev
)
6667 struct intel_encoder
*encoder
;
6668 struct intel_connector
*connector
;
6670 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
6672 connector
->new_encoder
=
6673 to_intel_encoder(connector
->base
.encoder
);
6676 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6679 to_intel_crtc(encoder
->base
.crtc
);
6684 * intel_modeset_commit_output_state
6686 * This function copies the stage display pipe configuration to the real one.
6688 static void intel_modeset_commit_output_state(struct drm_device
*dev
)
6690 struct intel_encoder
*encoder
;
6691 struct intel_connector
*connector
;
6693 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
6695 connector
->base
.encoder
= &connector
->new_encoder
->base
;
6698 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6700 encoder
->base
.crtc
= &encoder
->new_crtc
->base
;
6704 static struct drm_display_mode
*
6705 intel_modeset_adjusted_mode(struct drm_crtc
*crtc
,
6706 struct drm_display_mode
*mode
)
6708 struct drm_device
*dev
= crtc
->dev
;
6709 struct drm_display_mode
*adjusted_mode
;
6710 struct drm_encoder_helper_funcs
*encoder_funcs
;
6711 struct intel_encoder
*encoder
;
6713 adjusted_mode
= drm_mode_duplicate(dev
, mode
);
6715 return ERR_PTR(-ENOMEM
);
6717 /* Pass our mode to the connectors and the CRTC to give them a chance to
6718 * adjust it according to limitations or connector properties, and also
6719 * a chance to reject the mode entirely.
6721 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6724 if (&encoder
->new_crtc
->base
!= crtc
)
6726 encoder_funcs
= encoder
->base
.helper_private
;
6727 if (!(encoder_funcs
->mode_fixup(&encoder
->base
, mode
,
6729 DRM_DEBUG_KMS("Encoder fixup failed\n");
6734 if (!(intel_crtc_mode_fixup(crtc
, mode
, adjusted_mode
))) {
6735 DRM_DEBUG_KMS("CRTC fixup failed\n");
6738 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
6740 return adjusted_mode
;
6742 drm_mode_destroy(dev
, adjusted_mode
);
6743 return ERR_PTR(-EINVAL
);
6746 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
6747 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
6749 intel_modeset_affected_pipes(struct drm_crtc
*crtc
, unsigned *modeset_pipes
,
6750 unsigned *prepare_pipes
, unsigned *disable_pipes
)
6752 struct intel_crtc
*intel_crtc
;
6753 struct drm_device
*dev
= crtc
->dev
;
6754 struct intel_encoder
*encoder
;
6755 struct intel_connector
*connector
;
6756 struct drm_crtc
*tmp_crtc
;
6758 *disable_pipes
= *modeset_pipes
= *prepare_pipes
= 0;
6760 /* Check which crtcs have changed outputs connected to them, these need
6761 * to be part of the prepare_pipes mask. We don't (yet) support global
6762 * modeset across multiple crtcs, so modeset_pipes will only have one
6763 * bit set at most. */
6764 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
6766 if (connector
->base
.encoder
== &connector
->new_encoder
->base
)
6769 if (connector
->base
.encoder
) {
6770 tmp_crtc
= connector
->base
.encoder
->crtc
;
6772 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
6775 if (connector
->new_encoder
)
6777 1 << connector
->new_encoder
->new_crtc
->pipe
;
6780 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6782 if (encoder
->base
.crtc
== &encoder
->new_crtc
->base
)
6785 if (encoder
->base
.crtc
) {
6786 tmp_crtc
= encoder
->base
.crtc
;
6788 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
6791 if (encoder
->new_crtc
)
6792 *prepare_pipes
|= 1 << encoder
->new_crtc
->pipe
;
6795 /* Check for any pipes that will be fully disabled ... */
6796 list_for_each_entry(intel_crtc
, &dev
->mode_config
.crtc_list
,
6800 /* Don't try to disable disabled crtcs. */
6801 if (!intel_crtc
->base
.enabled
)
6804 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6806 if (encoder
->new_crtc
== intel_crtc
)
6811 *disable_pipes
|= 1 << intel_crtc
->pipe
;
6815 /* set_mode is also used to update properties on life display pipes. */
6816 intel_crtc
= to_intel_crtc(crtc
);
6818 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
6820 /* We only support modeset on one single crtc, hence we need to do that
6821 * only for the passed in crtc iff we change anything else than just
6824 * This is actually not true, to be fully compatible with the old crtc
6825 * helper we automatically disable _any_ output (i.e. doesn't need to be
6826 * connected to the crtc we're modesetting on) if it's disconnected.
6827 * Which is a rather nutty api (since changed the output configuration
6828 * without userspace's explicit request can lead to confusion), but
6829 * alas. Hence we currently need to modeset on all pipes we prepare. */
6831 *modeset_pipes
= *prepare_pipes
;
6833 /* ... and mask these out. */
6834 *modeset_pipes
&= ~(*disable_pipes
);
6835 *prepare_pipes
&= ~(*disable_pipes
);
6838 static bool intel_crtc_in_use(struct drm_crtc
*crtc
)
6840 struct drm_encoder
*encoder
;
6841 struct drm_device
*dev
= crtc
->dev
;
6843 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
6844 if (encoder
->crtc
== crtc
)
6851 intel_modeset_update_state(struct drm_device
*dev
, unsigned prepare_pipes
)
6853 struct intel_encoder
*intel_encoder
;
6854 struct intel_crtc
*intel_crtc
;
6855 struct drm_connector
*connector
;
6857 list_for_each_entry(intel_encoder
, &dev
->mode_config
.encoder_list
,
6859 if (!intel_encoder
->base
.crtc
)
6862 intel_crtc
= to_intel_crtc(intel_encoder
->base
.crtc
);
6864 if (prepare_pipes
& (1 << intel_crtc
->pipe
))
6865 intel_encoder
->connectors_active
= false;
6868 intel_modeset_commit_output_state(dev
);
6870 /* Update computed state. */
6871 list_for_each_entry(intel_crtc
, &dev
->mode_config
.crtc_list
,
6873 intel_crtc
->base
.enabled
= intel_crtc_in_use(&intel_crtc
->base
);
6876 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
6877 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
6880 intel_crtc
= to_intel_crtc(connector
->encoder
->crtc
);
6882 if (prepare_pipes
& (1 << intel_crtc
->pipe
)) {
6883 connector
->dpms
= DRM_MODE_DPMS_ON
;
6885 intel_encoder
= to_intel_encoder(connector
->encoder
);
6886 intel_encoder
->connectors_active
= true;
6892 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
6893 list_for_each_entry((intel_crtc), \
6894 &(dev)->mode_config.crtc_list, \
6896 if (mask & (1 <<(intel_crtc)->pipe)) \
6899 intel_modeset_check_state(struct drm_device
*dev
)
6901 struct intel_crtc
*crtc
;
6902 struct intel_encoder
*encoder
;
6903 struct intel_connector
*connector
;
6905 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
6907 /* This also checks the encoder/connector hw state with the
6908 * ->get_hw_state callbacks. */
6909 intel_connector_check_state(connector
);
6911 WARN(&connector
->new_encoder
->base
!= connector
->base
.encoder
,
6912 "connector's staged encoder doesn't match current encoder\n");
6915 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6917 bool enabled
= false;
6918 bool active
= false;
6919 enum pipe pipe
, tracked_pipe
;
6921 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
6922 encoder
->base
.base
.id
,
6923 drm_get_encoder_name(&encoder
->base
));
6925 WARN(&encoder
->new_crtc
->base
!= encoder
->base
.crtc
,
6926 "encoder's stage crtc doesn't match current crtc\n");
6927 WARN(encoder
->connectors_active
&& !encoder
->base
.crtc
,
6928 "encoder's active_connectors set, but no crtc\n");
6930 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
6932 if (connector
->base
.encoder
!= &encoder
->base
)
6935 if (connector
->base
.dpms
!= DRM_MODE_DPMS_OFF
)
6938 WARN(!!encoder
->base
.crtc
!= enabled
,
6939 "encoder's enabled state mismatch "
6940 "(expected %i, found %i)\n",
6941 !!encoder
->base
.crtc
, enabled
);
6942 WARN(active
&& !encoder
->base
.crtc
,
6943 "active encoder with no crtc\n");
6945 WARN(encoder
->connectors_active
!= active
,
6946 "encoder's computed active state doesn't match tracked active state "
6947 "(expected %i, found %i)\n", active
, encoder
->connectors_active
);
6949 active
= encoder
->get_hw_state(encoder
, &pipe
);
6950 WARN(active
!= encoder
->connectors_active
,
6951 "encoder's hw state doesn't match sw tracking "
6952 "(expected %i, found %i)\n",
6953 encoder
->connectors_active
, active
);
6955 if (!encoder
->base
.crtc
)
6958 tracked_pipe
= to_intel_crtc(encoder
->base
.crtc
)->pipe
;
6959 WARN(active
&& pipe
!= tracked_pipe
,
6960 "active encoder's pipe doesn't match"
6961 "(expected %i, found %i)\n",
6962 tracked_pipe
, pipe
);
6966 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
6968 bool enabled
= false;
6969 bool active
= false;
6971 DRM_DEBUG_KMS("[CRTC:%d]\n",
6972 crtc
->base
.base
.id
);
6974 WARN(crtc
->active
&& !crtc
->base
.enabled
,
6975 "active crtc, but not enabled in sw tracking\n");
6977 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6979 if (encoder
->base
.crtc
!= &crtc
->base
)
6982 if (encoder
->connectors_active
)
6985 WARN(active
!= crtc
->active
,
6986 "crtc's computed active state doesn't match tracked active state "
6987 "(expected %i, found %i)\n", active
, crtc
->active
);
6988 WARN(enabled
!= crtc
->base
.enabled
,
6989 "crtc's computed enabled state doesn't match tracked enabled state "
6990 "(expected %i, found %i)\n", enabled
, crtc
->base
.enabled
);
6992 assert_pipe(dev
->dev_private
, crtc
->pipe
, crtc
->active
);
6996 bool intel_set_mode(struct drm_crtc
*crtc
,
6997 struct drm_display_mode
*mode
,
6998 int x
, int y
, struct drm_framebuffer
*fb
)
7000 struct drm_device
*dev
= crtc
->dev
;
7001 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
7002 struct drm_display_mode
*adjusted_mode
, saved_mode
, saved_hwmode
;
7003 struct drm_encoder_helper_funcs
*encoder_funcs
;
7004 struct drm_encoder
*encoder
;
7005 struct intel_crtc
*intel_crtc
;
7006 unsigned disable_pipes
, prepare_pipes
, modeset_pipes
;
7009 intel_modeset_affected_pipes(crtc
, &modeset_pipes
,
7010 &prepare_pipes
, &disable_pipes
);
7012 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
7013 modeset_pipes
, prepare_pipes
, disable_pipes
);
7015 for_each_intel_crtc_masked(dev
, disable_pipes
, intel_crtc
)
7016 intel_crtc_disable(&intel_crtc
->base
);
7018 saved_hwmode
= crtc
->hwmode
;
7019 saved_mode
= crtc
->mode
;
7021 /* Hack: Because we don't (yet) support global modeset on multiple
7022 * crtcs, we don't keep track of the new mode for more than one crtc.
7023 * Hence simply check whether any bit is set in modeset_pipes in all the
7024 * pieces of code that are not yet converted to deal with mutliple crtcs
7025 * changing their mode at the same time. */
7026 adjusted_mode
= NULL
;
7027 if (modeset_pipes
) {
7028 adjusted_mode
= intel_modeset_adjusted_mode(crtc
, mode
);
7029 if (IS_ERR(adjusted_mode
)) {
7034 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
7035 if (intel_crtc
->base
.enabled
)
7036 dev_priv
->display
.crtc_disable(&intel_crtc
->base
);
7039 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
7040 * to set it here already despite that we pass it down the callchain.
7045 /* Only after disabling all output pipelines that will be changed can we
7046 * update the the output configuration. */
7047 intel_modeset_update_state(dev
, prepare_pipes
);
7049 /* Set up the DPLL and any encoders state that needs to adjust or depend
7052 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
7053 ret
= !intel_crtc_mode_set(&intel_crtc
->base
,
7054 mode
, adjusted_mode
,
7059 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
7061 if (encoder
->crtc
!= &intel_crtc
->base
)
7064 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
7065 encoder
->base
.id
, drm_get_encoder_name(encoder
),
7066 mode
->base
.id
, mode
->name
);
7067 encoder_funcs
= encoder
->helper_private
;
7068 encoder_funcs
->mode_set(encoder
, mode
, adjusted_mode
);
7072 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
7073 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
)
7074 dev_priv
->display
.crtc_enable(&intel_crtc
->base
);
7076 if (modeset_pipes
) {
7077 /* Store real post-adjustment hardware mode. */
7078 crtc
->hwmode
= *adjusted_mode
;
7080 /* Calculate and store various constants which
7081 * are later needed by vblank and swap-completion
7082 * timestamping. They are derived from true hwmode.
7084 drm_calc_timestamping_constants(crtc
);
7087 /* FIXME: add subpixel order */
7089 drm_mode_destroy(dev
, adjusted_mode
);
7090 if (!ret
&& crtc
->enabled
) {
7091 crtc
->hwmode
= saved_hwmode
;
7092 crtc
->mode
= saved_mode
;
7094 intel_modeset_check_state(dev
);
7100 #undef for_each_intel_crtc_masked
7102 static void intel_set_config_free(struct intel_set_config
*config
)
7107 kfree(config
->save_connector_encoders
);
7108 kfree(config
->save_encoder_crtcs
);
7112 static int intel_set_config_save_state(struct drm_device
*dev
,
7113 struct intel_set_config
*config
)
7115 struct drm_encoder
*encoder
;
7116 struct drm_connector
*connector
;
7119 config
->save_encoder_crtcs
=
7120 kcalloc(dev
->mode_config
.num_encoder
,
7121 sizeof(struct drm_crtc
*), GFP_KERNEL
);
7122 if (!config
->save_encoder_crtcs
)
7125 config
->save_connector_encoders
=
7126 kcalloc(dev
->mode_config
.num_connector
,
7127 sizeof(struct drm_encoder
*), GFP_KERNEL
);
7128 if (!config
->save_connector_encoders
)
7131 /* Copy data. Note that driver private data is not affected.
7132 * Should anything bad happen only the expected state is
7133 * restored, not the drivers personal bookkeeping.
7136 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
7137 config
->save_encoder_crtcs
[count
++] = encoder
->crtc
;
7141 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
7142 config
->save_connector_encoders
[count
++] = connector
->encoder
;
7148 static void intel_set_config_restore_state(struct drm_device
*dev
,
7149 struct intel_set_config
*config
)
7151 struct intel_encoder
*encoder
;
7152 struct intel_connector
*connector
;
7156 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
7158 to_intel_crtc(config
->save_encoder_crtcs
[count
++]);
7162 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
7163 connector
->new_encoder
=
7164 to_intel_encoder(config
->save_connector_encoders
[count
++]);
7169 intel_set_config_compute_mode_changes(struct drm_mode_set
*set
,
7170 struct intel_set_config
*config
)
7173 /* We should be able to check here if the fb has the same properties
7174 * and then just flip_or_move it */
7175 if (set
->crtc
->fb
!= set
->fb
) {
7176 /* If we have no fb then treat it as a full mode set */
7177 if (set
->crtc
->fb
== NULL
) {
7178 DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
7179 config
->mode_changed
= true;
7180 } else if (set
->fb
== NULL
) {
7181 config
->mode_changed
= true;
7182 } else if (set
->fb
->depth
!= set
->crtc
->fb
->depth
) {
7183 config
->mode_changed
= true;
7184 } else if (set
->fb
->bits_per_pixel
!=
7185 set
->crtc
->fb
->bits_per_pixel
) {
7186 config
->mode_changed
= true;
7188 config
->fb_changed
= true;
7191 if (set
->fb
&& (set
->x
!= set
->crtc
->x
|| set
->y
!= set
->crtc
->y
))
7192 config
->fb_changed
= true;
7194 if (set
->mode
&& !drm_mode_equal(set
->mode
, &set
->crtc
->mode
)) {
7195 DRM_DEBUG_KMS("modes are different, full mode set\n");
7196 drm_mode_debug_printmodeline(&set
->crtc
->mode
);
7197 drm_mode_debug_printmodeline(set
->mode
);
7198 config
->mode_changed
= true;
7203 intel_modeset_stage_output_state(struct drm_device
*dev
,
7204 struct drm_mode_set
*set
,
7205 struct intel_set_config
*config
)
7207 struct drm_crtc
*new_crtc
;
7208 struct intel_connector
*connector
;
7209 struct intel_encoder
*encoder
;
7212 /* The upper layers ensure that we either disabl a crtc or have a list
7213 * of connectors. For paranoia, double-check this. */
7214 WARN_ON(!set
->fb
&& (set
->num_connectors
!= 0));
7215 WARN_ON(set
->fb
&& (set
->num_connectors
== 0));
7218 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
7220 /* Otherwise traverse passed in connector list and get encoders
7222 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
7223 if (set
->connectors
[ro
] == &connector
->base
) {
7224 connector
->new_encoder
= connector
->encoder
;
7229 /* If we disable the crtc, disable all its connectors. Also, if
7230 * the connector is on the changing crtc but not on the new
7231 * connector list, disable it. */
7232 if ((!set
->fb
|| ro
== set
->num_connectors
) &&
7233 connector
->base
.encoder
&&
7234 connector
->base
.encoder
->crtc
== set
->crtc
) {
7235 connector
->new_encoder
= NULL
;
7237 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
7238 connector
->base
.base
.id
,
7239 drm_get_connector_name(&connector
->base
));
7243 if (&connector
->new_encoder
->base
!= connector
->base
.encoder
) {
7244 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
7245 config
->mode_changed
= true;
7248 /* Disable all disconnected encoders. */
7249 if (connector
->base
.status
== connector_status_disconnected
)
7250 connector
->new_encoder
= NULL
;
7252 /* connector->new_encoder is now updated for all connectors. */
7254 /* Update crtc of enabled connectors. */
7256 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
7258 if (!connector
->new_encoder
)
7261 new_crtc
= connector
->new_encoder
->base
.crtc
;
7263 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
7264 if (set
->connectors
[ro
] == &connector
->base
)
7265 new_crtc
= set
->crtc
;
7268 /* Make sure the new CRTC will work with the encoder */
7269 if (!intel_encoder_crtc_ok(&connector
->new_encoder
->base
,
7273 connector
->encoder
->new_crtc
= to_intel_crtc(new_crtc
);
7275 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
7276 connector
->base
.base
.id
,
7277 drm_get_connector_name(&connector
->base
),
7281 /* Check for any encoders that needs to be disabled. */
7282 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
7284 list_for_each_entry(connector
,
7285 &dev
->mode_config
.connector_list
,
7287 if (connector
->new_encoder
== encoder
) {
7288 WARN_ON(!connector
->new_encoder
->new_crtc
);
7293 encoder
->new_crtc
= NULL
;
7295 /* Only now check for crtc changes so we don't miss encoders
7296 * that will be disabled. */
7297 if (&encoder
->new_crtc
->base
!= encoder
->base
.crtc
) {
7298 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
7299 config
->mode_changed
= true;
7302 /* Now we've also updated encoder->new_crtc for all encoders. */
7307 static int intel_crtc_set_config(struct drm_mode_set
*set
)
7309 struct drm_device
*dev
;
7310 struct drm_mode_set save_set
;
7311 struct intel_set_config
*config
;
7317 BUG_ON(!set
->crtc
->helper_private
);
7322 /* The fb helper likes to play gross jokes with ->mode_set_config.
7323 * Unfortunately the crtc helper doesn't do much at all for this case,
7324 * so we have to cope with this madness until the fb helper is fixed up. */
7325 if (set
->fb
&& set
->num_connectors
== 0)
7329 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
7330 set
->crtc
->base
.id
, set
->fb
->base
.id
,
7331 (int)set
->num_connectors
, set
->x
, set
->y
);
7333 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set
->crtc
->base
.id
);
7336 dev
= set
->crtc
->dev
;
7339 config
= kzalloc(sizeof(*config
), GFP_KERNEL
);
7343 ret
= intel_set_config_save_state(dev
, config
);
7347 save_set
.crtc
= set
->crtc
;
7348 save_set
.mode
= &set
->crtc
->mode
;
7349 save_set
.x
= set
->crtc
->x
;
7350 save_set
.y
= set
->crtc
->y
;
7351 save_set
.fb
= set
->crtc
->fb
;
7353 /* Compute whether we need a full modeset, only an fb base update or no
7354 * change at all. In the future we might also check whether only the
7355 * mode changed, e.g. for LVDS where we only change the panel fitter in
7357 intel_set_config_compute_mode_changes(set
, config
);
7359 ret
= intel_modeset_stage_output_state(dev
, set
, config
);
7363 if (config
->mode_changed
) {
7365 DRM_DEBUG_KMS("attempting to set mode from"
7367 drm_mode_debug_printmodeline(set
->mode
);
7370 if (!intel_set_mode(set
->crtc
, set
->mode
,
7371 set
->x
, set
->y
, set
->fb
)) {
7372 DRM_ERROR("failed to set mode on [CRTC:%d]\n",
7373 set
->crtc
->base
.id
);
7378 if (set
->crtc
->enabled
) {
7379 DRM_DEBUG_KMS("Setting connector DPMS state to on\n");
7380 for (i
= 0; i
< set
->num_connectors
; i
++) {
7381 DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set
->connectors
[i
]->base
.id
,
7382 drm_get_connector_name(set
->connectors
[i
]));
7383 set
->connectors
[i
]->funcs
->dpms(set
->connectors
[i
], DRM_MODE_DPMS_ON
);
7386 } else if (config
->fb_changed
) {
7387 ret
= intel_pipe_set_base(set
->crtc
,
7388 set
->x
, set
->y
, set
->fb
);
7391 intel_set_config_free(config
);
7396 intel_set_config_restore_state(dev
, config
);
7398 /* Try to restore the config */
7399 if (config
->mode_changed
&&
7400 !intel_set_mode(save_set
.crtc
, save_set
.mode
,
7401 save_set
.x
, save_set
.y
, save_set
.fb
))
7402 DRM_ERROR("failed to restore config after modeset failure\n");
7405 intel_set_config_free(config
);
7409 static const struct drm_crtc_funcs intel_crtc_funcs
= {
7410 .cursor_set
= intel_crtc_cursor_set
,
7411 .cursor_move
= intel_crtc_cursor_move
,
7412 .gamma_set
= intel_crtc_gamma_set
,
7413 .set_config
= intel_crtc_set_config
,
7414 .destroy
= intel_crtc_destroy
,
7415 .page_flip
= intel_crtc_page_flip
,
7418 static void intel_pch_pll_init(struct drm_device
*dev
)
7420 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
7423 if (dev_priv
->num_pch_pll
== 0) {
7424 DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n");
7428 for (i
= 0; i
< dev_priv
->num_pch_pll
; i
++) {
7429 dev_priv
->pch_plls
[i
].pll_reg
= _PCH_DPLL(i
);
7430 dev_priv
->pch_plls
[i
].fp0_reg
= _PCH_FP0(i
);
7431 dev_priv
->pch_plls
[i
].fp1_reg
= _PCH_FP1(i
);
7435 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
7437 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
7438 struct intel_crtc
*intel_crtc
;
7441 intel_crtc
= kzalloc(sizeof(struct intel_crtc
) + (INTELFB_CONN_LIMIT
* sizeof(struct drm_connector
*)), GFP_KERNEL
);
7442 if (intel_crtc
== NULL
)
7445 drm_crtc_init(dev
, &intel_crtc
->base
, &intel_crtc_funcs
);
7447 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
7448 for (i
= 0; i
< 256; i
++) {
7449 intel_crtc
->lut_r
[i
] = i
;
7450 intel_crtc
->lut_g
[i
] = i
;
7451 intel_crtc
->lut_b
[i
] = i
;
7454 /* Swap pipes & planes for FBC on pre-965 */
7455 intel_crtc
->pipe
= pipe
;
7456 intel_crtc
->plane
= pipe
;
7457 if (IS_MOBILE(dev
) && IS_GEN3(dev
)) {
7458 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
7459 intel_crtc
->plane
= !pipe
;
7462 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
7463 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
7464 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = &intel_crtc
->base
;
7465 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = &intel_crtc
->base
;
7467 intel_crtc
->bpp
= 24; /* default for pre-Ironlake */
7469 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
7472 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
7473 struct drm_file
*file
)
7475 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
7476 struct drm_mode_object
*drmmode_obj
;
7477 struct intel_crtc
*crtc
;
7479 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
7482 drmmode_obj
= drm_mode_object_find(dev
, pipe_from_crtc_id
->crtc_id
,
7483 DRM_MODE_OBJECT_CRTC
);
7486 DRM_ERROR("no such CRTC id\n");
7490 crtc
= to_intel_crtc(obj_to_crtc(drmmode_obj
));
7491 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
7496 static int intel_encoder_clones(struct intel_encoder
*encoder
)
7498 struct drm_device
*dev
= encoder
->base
.dev
;
7499 struct intel_encoder
*source_encoder
;
7503 list_for_each_entry(source_encoder
,
7504 &dev
->mode_config
.encoder_list
, base
.head
) {
7506 if (encoder
== source_encoder
)
7507 index_mask
|= (1 << entry
);
7509 /* Intel hw has only one MUX where enocoders could be cloned. */
7510 if (encoder
->cloneable
&& source_encoder
->cloneable
)
7511 index_mask
|= (1 << entry
);
7519 static bool has_edp_a(struct drm_device
*dev
)
7521 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7523 if (!IS_MOBILE(dev
))
7526 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
7530 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES
) & ILK_eDP_A_DISABLE
))
7536 static void intel_setup_outputs(struct drm_device
*dev
)
7538 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7539 struct intel_encoder
*encoder
;
7540 bool dpd_is_edp
= false;
7543 has_lvds
= intel_lvds_init(dev
);
7544 if (!has_lvds
&& !HAS_PCH_SPLIT(dev
)) {
7545 /* disable the panel fitter on everything but LVDS */
7546 I915_WRITE(PFIT_CONTROL
, 0);
7549 if (HAS_PCH_SPLIT(dev
)) {
7550 dpd_is_edp
= intel_dpd_is_edp(dev
);
7553 intel_dp_init(dev
, DP_A
, PORT_A
);
7555 if (dpd_is_edp
&& (I915_READ(PCH_DP_D
) & DP_DETECTED
))
7556 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
7559 intel_crt_init(dev
);
7561 if (IS_HASWELL(dev
)) {
7564 /* Haswell uses DDI functions to detect digital outputs */
7565 found
= I915_READ(DDI_BUF_CTL_A
) & DDI_INIT_DISPLAY_DETECTED
;
7566 /* DDI A only supports eDP */
7568 intel_ddi_init(dev
, PORT_A
);
7570 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
7572 found
= I915_READ(SFUSE_STRAP
);
7574 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
7575 intel_ddi_init(dev
, PORT_B
);
7576 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
7577 intel_ddi_init(dev
, PORT_C
);
7578 if (found
& SFUSE_STRAP_DDID_DETECTED
)
7579 intel_ddi_init(dev
, PORT_D
);
7580 } else if (HAS_PCH_SPLIT(dev
)) {
7583 if (I915_READ(HDMIB
) & PORT_DETECTED
) {
7584 /* PCH SDVOB multiplex with HDMIB */
7585 found
= intel_sdvo_init(dev
, PCH_SDVOB
, true);
7587 intel_hdmi_init(dev
, HDMIB
, PORT_B
);
7588 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
7589 intel_dp_init(dev
, PCH_DP_B
, PORT_B
);
7592 if (I915_READ(HDMIC
) & PORT_DETECTED
)
7593 intel_hdmi_init(dev
, HDMIC
, PORT_C
);
7595 if (!dpd_is_edp
&& I915_READ(HDMID
) & PORT_DETECTED
)
7596 intel_hdmi_init(dev
, HDMID
, PORT_D
);
7598 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
7599 intel_dp_init(dev
, PCH_DP_C
, PORT_C
);
7601 if (!dpd_is_edp
&& (I915_READ(PCH_DP_D
) & DP_DETECTED
))
7602 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
7603 } else if (IS_VALLEYVIEW(dev
)) {
7606 if (I915_READ(SDVOB
) & PORT_DETECTED
) {
7607 /* SDVOB multiplex with HDMIB */
7608 found
= intel_sdvo_init(dev
, SDVOB
, true);
7610 intel_hdmi_init(dev
, SDVOB
, PORT_B
);
7611 if (!found
&& (I915_READ(DP_B
) & DP_DETECTED
))
7612 intel_dp_init(dev
, DP_B
, PORT_B
);
7615 if (I915_READ(SDVOC
) & PORT_DETECTED
)
7616 intel_hdmi_init(dev
, SDVOC
, PORT_C
);
7618 /* Shares lanes with HDMI on SDVOC */
7619 if (I915_READ(DP_C
) & DP_DETECTED
)
7620 intel_dp_init(dev
, DP_C
, PORT_C
);
7621 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev
)) {
7624 if (I915_READ(SDVOB
) & SDVO_DETECTED
) {
7625 DRM_DEBUG_KMS("probing SDVOB\n");
7626 found
= intel_sdvo_init(dev
, SDVOB
, true);
7627 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
)) {
7628 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
7629 intel_hdmi_init(dev
, SDVOB
, PORT_B
);
7632 if (!found
&& SUPPORTS_INTEGRATED_DP(dev
)) {
7633 DRM_DEBUG_KMS("probing DP_B\n");
7634 intel_dp_init(dev
, DP_B
, PORT_B
);
7638 /* Before G4X SDVOC doesn't have its own detect register */
7640 if (I915_READ(SDVOB
) & SDVO_DETECTED
) {
7641 DRM_DEBUG_KMS("probing SDVOC\n");
7642 found
= intel_sdvo_init(dev
, SDVOC
, false);
7645 if (!found
&& (I915_READ(SDVOC
) & SDVO_DETECTED
)) {
7647 if (SUPPORTS_INTEGRATED_HDMI(dev
)) {
7648 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
7649 intel_hdmi_init(dev
, SDVOC
, PORT_C
);
7651 if (SUPPORTS_INTEGRATED_DP(dev
)) {
7652 DRM_DEBUG_KMS("probing DP_C\n");
7653 intel_dp_init(dev
, DP_C
, PORT_C
);
7657 if (SUPPORTS_INTEGRATED_DP(dev
) &&
7658 (I915_READ(DP_D
) & DP_DETECTED
)) {
7659 DRM_DEBUG_KMS("probing DP_D\n");
7660 intel_dp_init(dev
, DP_D
, PORT_D
);
7662 } else if (IS_GEN2(dev
))
7663 intel_dvo_init(dev
);
7665 if (SUPPORTS_TV(dev
))
7668 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
7669 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
7670 encoder
->base
.possible_clones
=
7671 intel_encoder_clones(encoder
);
7674 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
7675 ironlake_init_pch_refclk(dev
);
7678 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
7680 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
7682 drm_framebuffer_cleanup(fb
);
7683 drm_gem_object_unreference_unlocked(&intel_fb
->obj
->base
);
7688 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
7689 struct drm_file
*file
,
7690 unsigned int *handle
)
7692 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
7693 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
7695 return drm_gem_handle_create(file
, &obj
->base
, handle
);
7698 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
7699 .destroy
= intel_user_framebuffer_destroy
,
7700 .create_handle
= intel_user_framebuffer_create_handle
,
7703 int intel_framebuffer_init(struct drm_device
*dev
,
7704 struct intel_framebuffer
*intel_fb
,
7705 struct drm_mode_fb_cmd2
*mode_cmd
,
7706 struct drm_i915_gem_object
*obj
)
7710 if (obj
->tiling_mode
== I915_TILING_Y
)
7713 if (mode_cmd
->pitches
[0] & 63)
7716 switch (mode_cmd
->pixel_format
) {
7717 case DRM_FORMAT_RGB332
:
7718 case DRM_FORMAT_RGB565
:
7719 case DRM_FORMAT_XRGB8888
:
7720 case DRM_FORMAT_XBGR8888
:
7721 case DRM_FORMAT_ARGB8888
:
7722 case DRM_FORMAT_XRGB2101010
:
7723 case DRM_FORMAT_ARGB2101010
:
7724 /* RGB formats are common across chipsets */
7726 case DRM_FORMAT_YUYV
:
7727 case DRM_FORMAT_UYVY
:
7728 case DRM_FORMAT_YVYU
:
7729 case DRM_FORMAT_VYUY
:
7732 DRM_DEBUG_KMS("unsupported pixel format %u\n",
7733 mode_cmd
->pixel_format
);
7737 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
7739 DRM_ERROR("framebuffer init failed %d\n", ret
);
7743 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
7744 intel_fb
->obj
= obj
;
7748 static struct drm_framebuffer
*
7749 intel_user_framebuffer_create(struct drm_device
*dev
,
7750 struct drm_file
*filp
,
7751 struct drm_mode_fb_cmd2
*mode_cmd
)
7753 struct drm_i915_gem_object
*obj
;
7755 obj
= to_intel_bo(drm_gem_object_lookup(dev
, filp
,
7756 mode_cmd
->handles
[0]));
7757 if (&obj
->base
== NULL
)
7758 return ERR_PTR(-ENOENT
);
7760 return intel_framebuffer_create(dev
, mode_cmd
, obj
);
7763 static const struct drm_mode_config_funcs intel_mode_funcs
= {
7764 .fb_create
= intel_user_framebuffer_create
,
7765 .output_poll_changed
= intel_fb_output_poll_changed
,
7768 /* Set up chip specific display functions */
7769 static void intel_init_display(struct drm_device
*dev
)
7771 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7773 /* We always want a DPMS function */
7774 if (HAS_PCH_SPLIT(dev
)) {
7775 dev_priv
->display
.crtc_mode_set
= ironlake_crtc_mode_set
;
7776 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
7777 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
7778 dev_priv
->display
.off
= ironlake_crtc_off
;
7779 dev_priv
->display
.update_plane
= ironlake_update_plane
;
7781 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
7782 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
7783 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
7784 dev_priv
->display
.off
= i9xx_crtc_off
;
7785 dev_priv
->display
.update_plane
= i9xx_update_plane
;
7788 /* Returns the core display clock speed */
7789 if (IS_VALLEYVIEW(dev
))
7790 dev_priv
->display
.get_display_clock_speed
=
7791 valleyview_get_display_clock_speed
;
7792 else if (IS_I945G(dev
) || (IS_G33(dev
) && !IS_PINEVIEW_M(dev
)))
7793 dev_priv
->display
.get_display_clock_speed
=
7794 i945_get_display_clock_speed
;
7795 else if (IS_I915G(dev
))
7796 dev_priv
->display
.get_display_clock_speed
=
7797 i915_get_display_clock_speed
;
7798 else if (IS_I945GM(dev
) || IS_845G(dev
) || IS_PINEVIEW_M(dev
))
7799 dev_priv
->display
.get_display_clock_speed
=
7800 i9xx_misc_get_display_clock_speed
;
7801 else if (IS_I915GM(dev
))
7802 dev_priv
->display
.get_display_clock_speed
=
7803 i915gm_get_display_clock_speed
;
7804 else if (IS_I865G(dev
))
7805 dev_priv
->display
.get_display_clock_speed
=
7806 i865_get_display_clock_speed
;
7807 else if (IS_I85X(dev
))
7808 dev_priv
->display
.get_display_clock_speed
=
7809 i855_get_display_clock_speed
;
7811 dev_priv
->display
.get_display_clock_speed
=
7812 i830_get_display_clock_speed
;
7814 if (HAS_PCH_SPLIT(dev
)) {
7816 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
7817 dev_priv
->display
.write_eld
= ironlake_write_eld
;
7818 } else if (IS_GEN6(dev
)) {
7819 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
7820 dev_priv
->display
.write_eld
= ironlake_write_eld
;
7821 } else if (IS_IVYBRIDGE(dev
)) {
7822 /* FIXME: detect B0+ stepping and use auto training */
7823 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
7824 dev_priv
->display
.write_eld
= ironlake_write_eld
;
7825 } else if (IS_HASWELL(dev
)) {
7826 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
7827 dev_priv
->display
.write_eld
= haswell_write_eld
;
7829 dev_priv
->display
.update_wm
= NULL
;
7830 } else if (IS_G4X(dev
)) {
7831 dev_priv
->display
.write_eld
= g4x_write_eld
;
7834 /* Default just returns -ENODEV to indicate unsupported */
7835 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
7837 switch (INTEL_INFO(dev
)->gen
) {
7839 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
7843 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
7848 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
7852 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
7855 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
7861 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
7862 * resume, or other times. This quirk makes sure that's the case for
7865 static void quirk_pipea_force(struct drm_device
*dev
)
7867 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7869 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
7870 DRM_INFO("applying pipe a force quirk\n");
7874 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
7876 static void quirk_ssc_force_disable(struct drm_device
*dev
)
7878 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7879 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
7880 DRM_INFO("applying lvds SSC disable quirk\n");
7884 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
7887 static void quirk_invert_brightness(struct drm_device
*dev
)
7889 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7890 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
7891 DRM_INFO("applying inverted panel brightness quirk\n");
7894 struct intel_quirk
{
7896 int subsystem_vendor
;
7897 int subsystem_device
;
7898 void (*hook
)(struct drm_device
*dev
);
7901 static struct intel_quirk intel_quirks
[] = {
7902 /* HP Mini needs pipe A force quirk (LP: #322104) */
7903 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force
},
7905 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
7906 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
7908 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
7909 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
7911 /* 855 & before need to leave pipe A & dpll A up */
7912 { 0x3582, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
7913 { 0x2562, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
7914 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
7916 /* Lenovo U160 cannot use SSC on LVDS */
7917 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
7919 /* Sony Vaio Y cannot use SSC on LVDS */
7920 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
7922 /* Acer Aspire 5734Z must invert backlight brightness */
7923 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
7926 static void intel_init_quirks(struct drm_device
*dev
)
7928 struct pci_dev
*d
= dev
->pdev
;
7931 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
7932 struct intel_quirk
*q
= &intel_quirks
[i
];
7934 if (d
->device
== q
->device
&&
7935 (d
->subsystem_vendor
== q
->subsystem_vendor
||
7936 q
->subsystem_vendor
== PCI_ANY_ID
) &&
7937 (d
->subsystem_device
== q
->subsystem_device
||
7938 q
->subsystem_device
== PCI_ANY_ID
))
7943 /* Disable the VGA plane that we never use */
7944 static void i915_disable_vga(struct drm_device
*dev
)
7946 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7950 if (HAS_PCH_SPLIT(dev
))
7951 vga_reg
= CPU_VGACNTRL
;
7955 vga_get_uninterruptible(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
7956 outb(SR01
, VGA_SR_INDEX
);
7957 sr1
= inb(VGA_SR_DATA
);
7958 outb(sr1
| 1<<5, VGA_SR_DATA
);
7959 vga_put(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
7962 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
7963 POSTING_READ(vga_reg
);
7966 void intel_modeset_init_hw(struct drm_device
*dev
)
7968 /* We attempt to init the necessary power wells early in the initialization
7969 * time, so the subsystems that expect power to be enabled can work.
7971 intel_init_power_wells(dev
);
7973 intel_prepare_ddi(dev
);
7975 intel_init_clock_gating(dev
);
7977 mutex_lock(&dev
->struct_mutex
);
7978 intel_enable_gt_powersave(dev
);
7979 mutex_unlock(&dev
->struct_mutex
);
7982 void intel_modeset_init(struct drm_device
*dev
)
7984 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7987 drm_mode_config_init(dev
);
7989 dev
->mode_config
.min_width
= 0;
7990 dev
->mode_config
.min_height
= 0;
7992 dev
->mode_config
.preferred_depth
= 24;
7993 dev
->mode_config
.prefer_shadow
= 1;
7995 dev
->mode_config
.funcs
= &intel_mode_funcs
;
7997 intel_init_quirks(dev
);
8001 intel_init_display(dev
);
8004 dev
->mode_config
.max_width
= 2048;
8005 dev
->mode_config
.max_height
= 2048;
8006 } else if (IS_GEN3(dev
)) {
8007 dev
->mode_config
.max_width
= 4096;
8008 dev
->mode_config
.max_height
= 4096;
8010 dev
->mode_config
.max_width
= 8192;
8011 dev
->mode_config
.max_height
= 8192;
8013 dev
->mode_config
.fb_base
= dev_priv
->mm
.gtt_base_addr
;
8015 DRM_DEBUG_KMS("%d display pipe%s available.\n",
8016 dev_priv
->num_pipe
, dev_priv
->num_pipe
> 1 ? "s" : "");
8018 for (i
= 0; i
< dev_priv
->num_pipe
; i
++) {
8019 intel_crtc_init(dev
, i
);
8020 ret
= intel_plane_init(dev
, i
);
8022 DRM_DEBUG_KMS("plane %d init failed: %d\n", i
, ret
);
8025 intel_pch_pll_init(dev
);
8027 /* Just disable it once at startup */
8028 i915_disable_vga(dev
);
8029 intel_setup_outputs(dev
);
8033 intel_connector_break_all_links(struct intel_connector
*connector
)
8035 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
8036 connector
->base
.encoder
= NULL
;
8037 connector
->encoder
->connectors_active
= false;
8038 connector
->encoder
->base
.crtc
= NULL
;
8041 static void intel_enable_pipe_a(struct drm_device
*dev
)
8043 struct intel_connector
*connector
;
8044 struct drm_connector
*crt
= NULL
;
8045 struct intel_load_detect_pipe load_detect_temp
;
8047 /* We can't just switch on the pipe A, we need to set things up with a
8048 * proper mode and output configuration. As a gross hack, enable pipe A
8049 * by enabling the load detect pipe once. */
8050 list_for_each_entry(connector
,
8051 &dev
->mode_config
.connector_list
,
8053 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
8054 crt
= &connector
->base
;
8062 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
))
8063 intel_release_load_detect_pipe(crt
, &load_detect_temp
);
8068 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
8070 struct drm_device
*dev
= crtc
->base
.dev
;
8071 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8074 /* Clear any frame start delays used for debugging left by the BIOS */
8075 reg
= PIPECONF(crtc
->pipe
);
8076 I915_WRITE(reg
, I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
8078 /* We need to sanitize the plane -> pipe mapping first because this will
8079 * disable the crtc (and hence change the state) if it is wrong. */
8080 if (!HAS_PCH_SPLIT(dev
)) {
8081 struct intel_connector
*connector
;
8084 reg
= DSPCNTR(crtc
->plane
);
8085 val
= I915_READ(reg
);
8087 if ((val
& DISPLAY_PLANE_ENABLE
) == 0 &&
8088 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
8091 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
8092 crtc
->base
.base
.id
);
8094 /* Pipe has the wrong plane attached and the plane is active.
8095 * Temporarily change the plane mapping and disable everything
8097 plane
= crtc
->plane
;
8098 crtc
->plane
= !plane
;
8099 dev_priv
->display
.crtc_disable(&crtc
->base
);
8100 crtc
->plane
= plane
;
8102 /* ... and break all links. */
8103 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
8105 if (connector
->encoder
->base
.crtc
!= &crtc
->base
)
8108 intel_connector_break_all_links(connector
);
8111 WARN_ON(crtc
->active
);
8112 crtc
->base
.enabled
= false;
8116 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
8117 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
8118 /* BIOS forgot to enable pipe A, this mostly happens after
8119 * resume. Force-enable the pipe to fix this, the update_dpms
8120 * call below we restore the pipe to the right state, but leave
8121 * the required bits on. */
8122 intel_enable_pipe_a(dev
);
8125 /* Adjust the state of the output pipe according to whether we
8126 * have active connectors/encoders. */
8127 intel_crtc_update_dpms(&crtc
->base
);
8129 if (crtc
->active
!= crtc
->base
.enabled
) {
8130 struct intel_encoder
*encoder
;
8132 /* This can happen either due to bugs in the get_hw_state
8133 * functions or because the pipe is force-enabled due to the
8135 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
8137 crtc
->base
.enabled
? "enabled" : "disabled",
8138 crtc
->active
? "enabled" : "disabled");
8140 crtc
->base
.enabled
= crtc
->active
;
8142 /* Because we only establish the connector -> encoder ->
8143 * crtc links if something is active, this means the
8144 * crtc is now deactivated. Break the links. connector
8145 * -> encoder links are only establish when things are
8146 * actually up, hence no need to break them. */
8147 WARN_ON(crtc
->active
);
8149 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
8150 WARN_ON(encoder
->connectors_active
);
8151 encoder
->base
.crtc
= NULL
;
8156 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
8158 struct intel_connector
*connector
;
8159 struct drm_device
*dev
= encoder
->base
.dev
;
8161 /* We need to check both for a crtc link (meaning that the
8162 * encoder is active and trying to read from a pipe) and the
8163 * pipe itself being active. */
8164 bool has_active_crtc
= encoder
->base
.crtc
&&
8165 to_intel_crtc(encoder
->base
.crtc
)->active
;
8167 if (encoder
->connectors_active
&& !has_active_crtc
) {
8168 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
8169 encoder
->base
.base
.id
,
8170 drm_get_encoder_name(&encoder
->base
));
8172 /* Connector is active, but has no active pipe. This is
8173 * fallout from our resume register restoring. Disable
8174 * the encoder manually again. */
8175 if (encoder
->base
.crtc
) {
8176 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
8177 encoder
->base
.base
.id
,
8178 drm_get_encoder_name(&encoder
->base
));
8179 encoder
->disable(encoder
);
8182 /* Inconsistent output/port/pipe state happens presumably due to
8183 * a bug in one of the get_hw_state functions. Or someplace else
8184 * in our code, like the register restore mess on resume. Clamp
8185 * things to off as a safer default. */
8186 list_for_each_entry(connector
,
8187 &dev
->mode_config
.connector_list
,
8189 if (connector
->encoder
!= encoder
)
8192 intel_connector_break_all_links(connector
);
8195 /* Enabled encoders without active connectors will be fixed in
8196 * the crtc fixup. */
8199 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
8200 * and i915 state tracking structures. */
8201 void intel_modeset_setup_hw_state(struct drm_device
*dev
)
8203 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8206 struct intel_crtc
*crtc
;
8207 struct intel_encoder
*encoder
;
8208 struct intel_connector
*connector
;
8210 for_each_pipe(pipe
) {
8211 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
8213 tmp
= I915_READ(PIPECONF(pipe
));
8214 if (tmp
& PIPECONF_ENABLE
)
8215 crtc
->active
= true;
8217 crtc
->active
= false;
8219 crtc
->base
.enabled
= crtc
->active
;
8221 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
8223 crtc
->active
? "enabled" : "disabled");
8226 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
8230 if (encoder
->get_hw_state(encoder
, &pipe
)) {
8231 encoder
->base
.crtc
=
8232 dev_priv
->pipe_to_crtc_mapping
[pipe
];
8234 encoder
->base
.crtc
= NULL
;
8237 encoder
->connectors_active
= false;
8238 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
8239 encoder
->base
.base
.id
,
8240 drm_get_encoder_name(&encoder
->base
),
8241 encoder
->base
.crtc
? "enabled" : "disabled",
8245 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
8247 if (connector
->get_hw_state(connector
)) {
8248 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
8249 connector
->encoder
->connectors_active
= true;
8250 connector
->base
.encoder
= &connector
->encoder
->base
;
8252 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
8253 connector
->base
.encoder
= NULL
;
8255 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
8256 connector
->base
.base
.id
,
8257 drm_get_connector_name(&connector
->base
),
8258 connector
->base
.encoder
? "enabled" : "disabled");
8261 /* HW state is read out, now we need to sanitize this mess. */
8262 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
8264 intel_sanitize_encoder(encoder
);
8267 for_each_pipe(pipe
) {
8268 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
8269 intel_sanitize_crtc(crtc
);
8272 intel_modeset_update_staged_output_state(dev
);
8274 intel_modeset_check_state(dev
);
8277 void intel_modeset_gem_init(struct drm_device
*dev
)
8279 intel_modeset_init_hw(dev
);
8281 intel_setup_overlay(dev
);
8283 intel_modeset_setup_hw_state(dev
);
8286 void intel_modeset_cleanup(struct drm_device
*dev
)
8288 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8289 struct drm_crtc
*crtc
;
8290 struct intel_crtc
*intel_crtc
;
8292 drm_kms_helper_poll_fini(dev
);
8293 mutex_lock(&dev
->struct_mutex
);
8295 intel_unregister_dsm_handler();
8298 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
8299 /* Skip inactive CRTCs */
8303 intel_crtc
= to_intel_crtc(crtc
);
8304 intel_increase_pllclock(crtc
);
8307 intel_disable_fbc(dev
);
8309 intel_disable_gt_powersave(dev
);
8311 ironlake_teardown_rc6(dev
);
8313 if (IS_VALLEYVIEW(dev
))
8316 mutex_unlock(&dev
->struct_mutex
);
8318 /* Disable the irq before mode object teardown, for the irq might
8319 * enqueue unpin/hotplug work. */
8320 drm_irq_uninstall(dev
);
8321 cancel_work_sync(&dev_priv
->hotplug_work
);
8322 cancel_work_sync(&dev_priv
->rps
.work
);
8324 /* flush any delayed tasks or pending work */
8325 flush_scheduled_work();
8327 drm_mode_config_cleanup(dev
);
8331 * Return which encoder is currently attached for connector.
8333 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
8335 return &intel_attached_encoder(connector
)->base
;
8338 void intel_connector_attach_encoder(struct intel_connector
*connector
,
8339 struct intel_encoder
*encoder
)
8341 connector
->encoder
= encoder
;
8342 drm_mode_connector_attach_encoder(&connector
->base
,
8347 * set vga decode state - true == enable VGA decode
8349 int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
)
8351 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8354 pci_read_config_word(dev_priv
->bridge_dev
, INTEL_GMCH_CTRL
, &gmch_ctrl
);
8356 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
8358 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
8359 pci_write_config_word(dev_priv
->bridge_dev
, INTEL_GMCH_CTRL
, gmch_ctrl
);
8363 #ifdef CONFIG_DEBUG_FS
8364 #include <linux/seq_file.h>
8366 struct intel_display_error_state
{
8367 struct intel_cursor_error_state
{
8372 } cursor
[I915_MAX_PIPES
];
8374 struct intel_pipe_error_state
{
8384 } pipe
[I915_MAX_PIPES
];
8386 struct intel_plane_error_state
{
8394 } plane
[I915_MAX_PIPES
];
8397 struct intel_display_error_state
*
8398 intel_display_capture_error_state(struct drm_device
*dev
)
8400 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
8401 struct intel_display_error_state
*error
;
8404 error
= kmalloc(sizeof(*error
), GFP_ATOMIC
);
8409 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
8410 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
8411 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
8413 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
8414 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
8415 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
8416 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
8417 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
8418 if (INTEL_INFO(dev
)->gen
>= 4) {
8419 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
8420 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
8423 error
->pipe
[i
].conf
= I915_READ(PIPECONF(i
));
8424 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
8425 error
->pipe
[i
].htotal
= I915_READ(HTOTAL(i
));
8426 error
->pipe
[i
].hblank
= I915_READ(HBLANK(i
));
8427 error
->pipe
[i
].hsync
= I915_READ(HSYNC(i
));
8428 error
->pipe
[i
].vtotal
= I915_READ(VTOTAL(i
));
8429 error
->pipe
[i
].vblank
= I915_READ(VBLANK(i
));
8430 error
->pipe
[i
].vsync
= I915_READ(VSYNC(i
));
8437 intel_display_print_error_state(struct seq_file
*m
,
8438 struct drm_device
*dev
,
8439 struct intel_display_error_state
*error
)
8441 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
8444 seq_printf(m
, "Num Pipes: %d\n", dev_priv
->num_pipe
);
8446 seq_printf(m
, "Pipe [%d]:\n", i
);
8447 seq_printf(m
, " CONF: %08x\n", error
->pipe
[i
].conf
);
8448 seq_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
8449 seq_printf(m
, " HTOTAL: %08x\n", error
->pipe
[i
].htotal
);
8450 seq_printf(m
, " HBLANK: %08x\n", error
->pipe
[i
].hblank
);
8451 seq_printf(m
, " HSYNC: %08x\n", error
->pipe
[i
].hsync
);
8452 seq_printf(m
, " VTOTAL: %08x\n", error
->pipe
[i
].vtotal
);
8453 seq_printf(m
, " VBLANK: %08x\n", error
->pipe
[i
].vblank
);
8454 seq_printf(m
, " VSYNC: %08x\n", error
->pipe
[i
].vsync
);
8456 seq_printf(m
, "Plane [%d]:\n", i
);
8457 seq_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
8458 seq_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
8459 seq_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
8460 seq_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
8461 seq_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
8462 if (INTEL_INFO(dev
)->gen
>= 4) {
8463 seq_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
8464 seq_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
8467 seq_printf(m
, "Cursor [%d]:\n", i
);
8468 seq_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
8469 seq_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
8470 seq_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);