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79e53945 JB |
1 | /* |
2 | * Copyright © 2006-2007 Intel Corporation | |
3 | * | |
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: | |
10 | * | |
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 | |
13 | * Software. | |
14 | * | |
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. | |
22 | * | |
23 | * Authors: | |
24 | * Eric Anholt <eric@anholt.net> | |
25 | */ | |
26 | ||
618563e3 | 27 | #include <linux/dmi.h> |
c1c7af60 JB |
28 | #include <linux/module.h> |
29 | #include <linux/input.h> | |
79e53945 | 30 | #include <linux/i2c.h> |
7662c8bd | 31 | #include <linux/kernel.h> |
5a0e3ad6 | 32 | #include <linux/slab.h> |
9cce37f4 | 33 | #include <linux/vgaarb.h> |
e0dac65e | 34 | #include <drm/drm_edid.h> |
760285e7 | 35 | #include <drm/drmP.h> |
79e53945 | 36 | #include "intel_drv.h" |
760285e7 | 37 | #include <drm/i915_drm.h> |
79e53945 | 38 | #include "i915_drv.h" |
e5510fac | 39 | #include "i915_trace.h" |
760285e7 DH |
40 | #include <drm/drm_dp_helper.h> |
41 | #include <drm/drm_crtc_helper.h> | |
c0f372b3 | 42 | #include <linux/dma_remapping.h> |
79e53945 | 43 | |
0206e353 | 44 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type); |
3dec0095 | 45 | static void intel_increase_pllclock(struct drm_crtc *crtc); |
6b383a7f | 46 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
79e53945 | 47 | |
79e53945 | 48 | typedef struct { |
0206e353 | 49 | int min, max; |
79e53945 JB |
50 | } intel_range_t; |
51 | ||
52 | typedef struct { | |
0206e353 AJ |
53 | int dot_limit; |
54 | int p2_slow, p2_fast; | |
79e53945 JB |
55 | } intel_p2_t; |
56 | ||
57 | #define INTEL_P2_NUM 2 | |
d4906093 ML |
58 | typedef struct intel_limit intel_limit_t; |
59 | struct intel_limit { | |
0206e353 AJ |
60 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
61 | intel_p2_t p2; | |
d4906093 | 62 | }; |
79e53945 | 63 | |
2377b741 JB |
64 | /* FDI */ |
65 | #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */ | |
66 | ||
d2acd215 DV |
67 | int |
68 | intel_pch_rawclk(struct drm_device *dev) | |
69 | { | |
70 | struct drm_i915_private *dev_priv = dev->dev_private; | |
71 | ||
72 | WARN_ON(!HAS_PCH_SPLIT(dev)); | |
73 | ||
74 | return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK; | |
75 | } | |
76 | ||
021357ac CW |
77 | static inline u32 /* units of 100MHz */ |
78 | intel_fdi_link_freq(struct drm_device *dev) | |
79 | { | |
8b99e68c CW |
80 | if (IS_GEN5(dev)) { |
81 | struct drm_i915_private *dev_priv = dev->dev_private; | |
82 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
83 | } else | |
84 | return 27; | |
021357ac CW |
85 | } |
86 | ||
e4b36699 | 87 | static const intel_limit_t intel_limits_i8xx_dvo = { |
0206e353 AJ |
88 | .dot = { .min = 25000, .max = 350000 }, |
89 | .vco = { .min = 930000, .max = 1400000 }, | |
90 | .n = { .min = 3, .max = 16 }, | |
91 | .m = { .min = 96, .max = 140 }, | |
92 | .m1 = { .min = 18, .max = 26 }, | |
93 | .m2 = { .min = 6, .max = 16 }, | |
94 | .p = { .min = 4, .max = 128 }, | |
95 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
96 | .p2 = { .dot_limit = 165000, |
97 | .p2_slow = 4, .p2_fast = 2 }, | |
e4b36699 KP |
98 | }; |
99 | ||
100 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
0206e353 AJ |
101 | .dot = { .min = 25000, .max = 350000 }, |
102 | .vco = { .min = 930000, .max = 1400000 }, | |
103 | .n = { .min = 3, .max = 16 }, | |
104 | .m = { .min = 96, .max = 140 }, | |
105 | .m1 = { .min = 18, .max = 26 }, | |
106 | .m2 = { .min = 6, .max = 16 }, | |
107 | .p = { .min = 4, .max = 128 }, | |
108 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
109 | .p2 = { .dot_limit = 165000, |
110 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 | 111 | }; |
273e27ca | 112 | |
e4b36699 | 113 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
114 | .dot = { .min = 20000, .max = 400000 }, |
115 | .vco = { .min = 1400000, .max = 2800000 }, | |
116 | .n = { .min = 1, .max = 6 }, | |
117 | .m = { .min = 70, .max = 120 }, | |
4f7dfb67 PJ |
118 | .m1 = { .min = 8, .max = 18 }, |
119 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
120 | .p = { .min = 5, .max = 80 }, |
121 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
122 | .p2 = { .dot_limit = 200000, |
123 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
124 | }; |
125 | ||
126 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
127 | .dot = { .min = 20000, .max = 400000 }, |
128 | .vco = { .min = 1400000, .max = 2800000 }, | |
129 | .n = { .min = 1, .max = 6 }, | |
130 | .m = { .min = 70, .max = 120 }, | |
53a7d2d1 PJ |
131 | .m1 = { .min = 8, .max = 18 }, |
132 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
133 | .p = { .min = 7, .max = 98 }, |
134 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
135 | .p2 = { .dot_limit = 112000, |
136 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 KP |
137 | }; |
138 | ||
273e27ca | 139 | |
e4b36699 | 140 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
141 | .dot = { .min = 25000, .max = 270000 }, |
142 | .vco = { .min = 1750000, .max = 3500000}, | |
143 | .n = { .min = 1, .max = 4 }, | |
144 | .m = { .min = 104, .max = 138 }, | |
145 | .m1 = { .min = 17, .max = 23 }, | |
146 | .m2 = { .min = 5, .max = 11 }, | |
147 | .p = { .min = 10, .max = 30 }, | |
148 | .p1 = { .min = 1, .max = 3}, | |
149 | .p2 = { .dot_limit = 270000, | |
150 | .p2_slow = 10, | |
151 | .p2_fast = 10 | |
044c7c41 | 152 | }, |
e4b36699 KP |
153 | }; |
154 | ||
155 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
156 | .dot = { .min = 22000, .max = 400000 }, |
157 | .vco = { .min = 1750000, .max = 3500000}, | |
158 | .n = { .min = 1, .max = 4 }, | |
159 | .m = { .min = 104, .max = 138 }, | |
160 | .m1 = { .min = 16, .max = 23 }, | |
161 | .m2 = { .min = 5, .max = 11 }, | |
162 | .p = { .min = 5, .max = 80 }, | |
163 | .p1 = { .min = 1, .max = 8}, | |
164 | .p2 = { .dot_limit = 165000, | |
165 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
166 | }; |
167 | ||
168 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
169 | .dot = { .min = 20000, .max = 115000 }, |
170 | .vco = { .min = 1750000, .max = 3500000 }, | |
171 | .n = { .min = 1, .max = 3 }, | |
172 | .m = { .min = 104, .max = 138 }, | |
173 | .m1 = { .min = 17, .max = 23 }, | |
174 | .m2 = { .min = 5, .max = 11 }, | |
175 | .p = { .min = 28, .max = 112 }, | |
176 | .p1 = { .min = 2, .max = 8 }, | |
177 | .p2 = { .dot_limit = 0, | |
178 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 179 | }, |
e4b36699 KP |
180 | }; |
181 | ||
182 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
183 | .dot = { .min = 80000, .max = 224000 }, |
184 | .vco = { .min = 1750000, .max = 3500000 }, | |
185 | .n = { .min = 1, .max = 3 }, | |
186 | .m = { .min = 104, .max = 138 }, | |
187 | .m1 = { .min = 17, .max = 23 }, | |
188 | .m2 = { .min = 5, .max = 11 }, | |
189 | .p = { .min = 14, .max = 42 }, | |
190 | .p1 = { .min = 2, .max = 6 }, | |
191 | .p2 = { .dot_limit = 0, | |
192 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 193 | }, |
e4b36699 KP |
194 | }; |
195 | ||
f2b115e6 | 196 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
197 | .dot = { .min = 20000, .max = 400000}, |
198 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 199 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
200 | .n = { .min = 3, .max = 6 }, |
201 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 202 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
203 | .m1 = { .min = 0, .max = 0 }, |
204 | .m2 = { .min = 0, .max = 254 }, | |
205 | .p = { .min = 5, .max = 80 }, | |
206 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
207 | .p2 = { .dot_limit = 200000, |
208 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
209 | }; |
210 | ||
f2b115e6 | 211 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
212 | .dot = { .min = 20000, .max = 400000 }, |
213 | .vco = { .min = 1700000, .max = 3500000 }, | |
214 | .n = { .min = 3, .max = 6 }, | |
215 | .m = { .min = 2, .max = 256 }, | |
216 | .m1 = { .min = 0, .max = 0 }, | |
217 | .m2 = { .min = 0, .max = 254 }, | |
218 | .p = { .min = 7, .max = 112 }, | |
219 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
220 | .p2 = { .dot_limit = 112000, |
221 | .p2_slow = 14, .p2_fast = 14 }, | |
e4b36699 KP |
222 | }; |
223 | ||
273e27ca EA |
224 | /* Ironlake / Sandybridge |
225 | * | |
226 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
227 | * the range value for them is (actual_value - 2). | |
228 | */ | |
b91ad0ec | 229 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
230 | .dot = { .min = 25000, .max = 350000 }, |
231 | .vco = { .min = 1760000, .max = 3510000 }, | |
232 | .n = { .min = 1, .max = 5 }, | |
233 | .m = { .min = 79, .max = 127 }, | |
234 | .m1 = { .min = 12, .max = 22 }, | |
235 | .m2 = { .min = 5, .max = 9 }, | |
236 | .p = { .min = 5, .max = 80 }, | |
237 | .p1 = { .min = 1, .max = 8 }, | |
238 | .p2 = { .dot_limit = 225000, | |
239 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
240 | }; |
241 | ||
b91ad0ec | 242 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
243 | .dot = { .min = 25000, .max = 350000 }, |
244 | .vco = { .min = 1760000, .max = 3510000 }, | |
245 | .n = { .min = 1, .max = 3 }, | |
246 | .m = { .min = 79, .max = 118 }, | |
247 | .m1 = { .min = 12, .max = 22 }, | |
248 | .m2 = { .min = 5, .max = 9 }, | |
249 | .p = { .min = 28, .max = 112 }, | |
250 | .p1 = { .min = 2, .max = 8 }, | |
251 | .p2 = { .dot_limit = 225000, | |
252 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
253 | }; |
254 | ||
255 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
256 | .dot = { .min = 25000, .max = 350000 }, |
257 | .vco = { .min = 1760000, .max = 3510000 }, | |
258 | .n = { .min = 1, .max = 3 }, | |
259 | .m = { .min = 79, .max = 127 }, | |
260 | .m1 = { .min = 12, .max = 22 }, | |
261 | .m2 = { .min = 5, .max = 9 }, | |
262 | .p = { .min = 14, .max = 56 }, | |
263 | .p1 = { .min = 2, .max = 8 }, | |
264 | .p2 = { .dot_limit = 225000, | |
265 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
266 | }; |
267 | ||
273e27ca | 268 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 269 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
270 | .dot = { .min = 25000, .max = 350000 }, |
271 | .vco = { .min = 1760000, .max = 3510000 }, | |
272 | .n = { .min = 1, .max = 2 }, | |
273 | .m = { .min = 79, .max = 126 }, | |
274 | .m1 = { .min = 12, .max = 22 }, | |
275 | .m2 = { .min = 5, .max = 9 }, | |
276 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 277 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
278 | .p2 = { .dot_limit = 225000, |
279 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
280 | }; |
281 | ||
282 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
283 | .dot = { .min = 25000, .max = 350000 }, |
284 | .vco = { .min = 1760000, .max = 3510000 }, | |
285 | .n = { .min = 1, .max = 3 }, | |
286 | .m = { .min = 79, .max = 126 }, | |
287 | .m1 = { .min = 12, .max = 22 }, | |
288 | .m2 = { .min = 5, .max = 9 }, | |
289 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 290 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
291 | .p2 = { .dot_limit = 225000, |
292 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
293 | }; |
294 | ||
a0c4da24 JB |
295 | static const intel_limit_t intel_limits_vlv_dac = { |
296 | .dot = { .min = 25000, .max = 270000 }, | |
297 | .vco = { .min = 4000000, .max = 6000000 }, | |
298 | .n = { .min = 1, .max = 7 }, | |
299 | .m = { .min = 22, .max = 450 }, /* guess */ | |
300 | .m1 = { .min = 2, .max = 3 }, | |
301 | .m2 = { .min = 11, .max = 156 }, | |
302 | .p = { .min = 10, .max = 30 }, | |
75e53986 | 303 | .p1 = { .min = 1, .max = 3 }, |
a0c4da24 JB |
304 | .p2 = { .dot_limit = 270000, |
305 | .p2_slow = 2, .p2_fast = 20 }, | |
a0c4da24 JB |
306 | }; |
307 | ||
308 | static const intel_limit_t intel_limits_vlv_hdmi = { | |
75e53986 DV |
309 | .dot = { .min = 25000, .max = 270000 }, |
310 | .vco = { .min = 4000000, .max = 6000000 }, | |
a0c4da24 JB |
311 | .n = { .min = 1, .max = 7 }, |
312 | .m = { .min = 60, .max = 300 }, /* guess */ | |
313 | .m1 = { .min = 2, .max = 3 }, | |
314 | .m2 = { .min = 11, .max = 156 }, | |
315 | .p = { .min = 10, .max = 30 }, | |
316 | .p1 = { .min = 2, .max = 3 }, | |
317 | .p2 = { .dot_limit = 270000, | |
318 | .p2_slow = 2, .p2_fast = 20 }, | |
a0c4da24 JB |
319 | }; |
320 | ||
321 | static const intel_limit_t intel_limits_vlv_dp = { | |
74a4dd2e VP |
322 | .dot = { .min = 25000, .max = 270000 }, |
323 | .vco = { .min = 4000000, .max = 6000000 }, | |
a0c4da24 | 324 | .n = { .min = 1, .max = 7 }, |
74a4dd2e | 325 | .m = { .min = 22, .max = 450 }, |
a0c4da24 JB |
326 | .m1 = { .min = 2, .max = 3 }, |
327 | .m2 = { .min = 11, .max = 156 }, | |
328 | .p = { .min = 10, .max = 30 }, | |
75e53986 | 329 | .p1 = { .min = 1, .max = 3 }, |
a0c4da24 JB |
330 | .p2 = { .dot_limit = 270000, |
331 | .p2_slow = 2, .p2_fast = 20 }, | |
a0c4da24 JB |
332 | }; |
333 | ||
1b894b59 CW |
334 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
335 | int refclk) | |
2c07245f | 336 | { |
b91ad0ec | 337 | struct drm_device *dev = crtc->dev; |
2c07245f | 338 | const intel_limit_t *limit; |
b91ad0ec ZW |
339 | |
340 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1974cad0 | 341 | if (intel_is_dual_link_lvds(dev)) { |
1b894b59 | 342 | if (refclk == 100000) |
b91ad0ec ZW |
343 | limit = &intel_limits_ironlake_dual_lvds_100m; |
344 | else | |
345 | limit = &intel_limits_ironlake_dual_lvds; | |
346 | } else { | |
1b894b59 | 347 | if (refclk == 100000) |
b91ad0ec ZW |
348 | limit = &intel_limits_ironlake_single_lvds_100m; |
349 | else | |
350 | limit = &intel_limits_ironlake_single_lvds; | |
351 | } | |
c6bb3538 | 352 | } else |
b91ad0ec | 353 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
354 | |
355 | return limit; | |
356 | } | |
357 | ||
044c7c41 ML |
358 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
359 | { | |
360 | struct drm_device *dev = crtc->dev; | |
044c7c41 ML |
361 | const intel_limit_t *limit; |
362 | ||
363 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1974cad0 | 364 | if (intel_is_dual_link_lvds(dev)) |
e4b36699 | 365 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 | 366 | else |
e4b36699 | 367 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
368 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
369 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 370 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 371 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 372 | limit = &intel_limits_g4x_sdvo; |
044c7c41 | 373 | } else /* The option is for other outputs */ |
e4b36699 | 374 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
375 | |
376 | return limit; | |
377 | } | |
378 | ||
1b894b59 | 379 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
79e53945 JB |
380 | { |
381 | struct drm_device *dev = crtc->dev; | |
382 | const intel_limit_t *limit; | |
383 | ||
bad720ff | 384 | if (HAS_PCH_SPLIT(dev)) |
1b894b59 | 385 | limit = intel_ironlake_limit(crtc, refclk); |
2c07245f | 386 | else if (IS_G4X(dev)) { |
044c7c41 | 387 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 388 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 389 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 390 | limit = &intel_limits_pineview_lvds; |
2177832f | 391 | else |
f2b115e6 | 392 | limit = &intel_limits_pineview_sdvo; |
a0c4da24 JB |
393 | } else if (IS_VALLEYVIEW(dev)) { |
394 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) | |
395 | limit = &intel_limits_vlv_dac; | |
396 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
397 | limit = &intel_limits_vlv_hdmi; | |
398 | else | |
399 | limit = &intel_limits_vlv_dp; | |
a6c45cf0 CW |
400 | } else if (!IS_GEN2(dev)) { |
401 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
402 | limit = &intel_limits_i9xx_lvds; | |
403 | else | |
404 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 JB |
405 | } else { |
406 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 407 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 408 | else |
e4b36699 | 409 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
410 | } |
411 | return limit; | |
412 | } | |
413 | ||
f2b115e6 AJ |
414 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
415 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 416 | { |
2177832f SL |
417 | clock->m = clock->m2 + 2; |
418 | clock->p = clock->p1 * clock->p2; | |
419 | clock->vco = refclk * clock->m / clock->n; | |
420 | clock->dot = clock->vco / clock->p; | |
421 | } | |
422 | ||
7429e9d4 DV |
423 | static uint32_t i9xx_dpll_compute_m(struct dpll *dpll) |
424 | { | |
425 | return 5 * (dpll->m1 + 2) + (dpll->m2 + 2); | |
426 | } | |
427 | ||
ac58c3f0 | 428 | static void i9xx_clock(int refclk, intel_clock_t *clock) |
2177832f | 429 | { |
7429e9d4 | 430 | clock->m = i9xx_dpll_compute_m(clock); |
79e53945 JB |
431 | clock->p = clock->p1 * clock->p2; |
432 | clock->vco = refclk * clock->m / (clock->n + 2); | |
433 | clock->dot = clock->vco / clock->p; | |
434 | } | |
435 | ||
79e53945 JB |
436 | /** |
437 | * Returns whether any output on the specified pipe is of the specified type | |
438 | */ | |
4ef69c7a | 439 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
79e53945 | 440 | { |
4ef69c7a | 441 | struct drm_device *dev = crtc->dev; |
4ef69c7a CW |
442 | struct intel_encoder *encoder; |
443 | ||
6c2b7c12 DV |
444 | for_each_encoder_on_crtc(dev, crtc, encoder) |
445 | if (encoder->type == type) | |
4ef69c7a CW |
446 | return true; |
447 | ||
448 | return false; | |
79e53945 JB |
449 | } |
450 | ||
7c04d1d9 | 451 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
452 | /** |
453 | * Returns whether the given set of divisors are valid for a given refclk with | |
454 | * the given connectors. | |
455 | */ | |
456 | ||
1b894b59 CW |
457 | static bool intel_PLL_is_valid(struct drm_device *dev, |
458 | const intel_limit_t *limit, | |
459 | const intel_clock_t *clock) | |
79e53945 | 460 | { |
79e53945 | 461 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 462 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 463 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
0206e353 | 464 | INTELPllInvalid("p out of range\n"); |
79e53945 | 465 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 466 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 467 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 468 | INTELPllInvalid("m1 out of range\n"); |
f2b115e6 | 469 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
0206e353 | 470 | INTELPllInvalid("m1 <= m2\n"); |
79e53945 | 471 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
0206e353 | 472 | INTELPllInvalid("m out of range\n"); |
79e53945 | 473 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
0206e353 | 474 | INTELPllInvalid("n out of range\n"); |
79e53945 | 475 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 476 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
477 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
478 | * connector, etc., rather than just a single range. | |
479 | */ | |
480 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 481 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
482 | |
483 | return true; | |
484 | } | |
485 | ||
d4906093 | 486 | static bool |
ee9300bb | 487 | i9xx_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc, |
cec2f356 SP |
488 | int target, int refclk, intel_clock_t *match_clock, |
489 | intel_clock_t *best_clock) | |
ac58c3f0 DV |
490 | { |
491 | struct drm_device *dev = crtc->dev; | |
492 | intel_clock_t clock; | |
493 | int err = target; | |
494 | ||
495 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
496 | /* | |
497 | * For LVDS just rely on its current settings for dual-channel. | |
498 | * We haven't figured out how to reliably set up different | |
499 | * single/dual channel state, if we even can. | |
500 | */ | |
501 | if (intel_is_dual_link_lvds(dev)) | |
502 | clock.p2 = limit->p2.p2_fast; | |
503 | else | |
504 | clock.p2 = limit->p2.p2_slow; | |
505 | } else { | |
506 | if (target < limit->p2.dot_limit) | |
507 | clock.p2 = limit->p2.p2_slow; | |
508 | else | |
509 | clock.p2 = limit->p2.p2_fast; | |
510 | } | |
511 | ||
512 | memset(best_clock, 0, sizeof(*best_clock)); | |
513 | ||
514 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; | |
515 | clock.m1++) { | |
516 | for (clock.m2 = limit->m2.min; | |
517 | clock.m2 <= limit->m2.max; clock.m2++) { | |
c0efc387 | 518 | if (clock.m2 >= clock.m1) |
ac58c3f0 DV |
519 | break; |
520 | for (clock.n = limit->n.min; | |
521 | clock.n <= limit->n.max; clock.n++) { | |
522 | for (clock.p1 = limit->p1.min; | |
523 | clock.p1 <= limit->p1.max; clock.p1++) { | |
524 | int this_err; | |
d4906093 | 525 | |
ac58c3f0 DV |
526 | i9xx_clock(refclk, &clock); |
527 | if (!intel_PLL_is_valid(dev, limit, | |
528 | &clock)) | |
529 | continue; | |
530 | if (match_clock && | |
531 | clock.p != match_clock->p) | |
532 | continue; | |
533 | ||
534 | this_err = abs(clock.dot - target); | |
535 | if (this_err < err) { | |
536 | *best_clock = clock; | |
537 | err = this_err; | |
538 | } | |
539 | } | |
540 | } | |
541 | } | |
542 | } | |
543 | ||
544 | return (err != target); | |
545 | } | |
546 | ||
547 | static bool | |
ee9300bb DV |
548 | pnv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc, |
549 | int target, int refclk, intel_clock_t *match_clock, | |
550 | intel_clock_t *best_clock) | |
79e53945 JB |
551 | { |
552 | struct drm_device *dev = crtc->dev; | |
79e53945 | 553 | intel_clock_t clock; |
79e53945 JB |
554 | int err = target; |
555 | ||
a210b028 | 556 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
79e53945 | 557 | /* |
a210b028 DV |
558 | * For LVDS just rely on its current settings for dual-channel. |
559 | * We haven't figured out how to reliably set up different | |
560 | * single/dual channel state, if we even can. | |
79e53945 | 561 | */ |
1974cad0 | 562 | if (intel_is_dual_link_lvds(dev)) |
79e53945 JB |
563 | clock.p2 = limit->p2.p2_fast; |
564 | else | |
565 | clock.p2 = limit->p2.p2_slow; | |
566 | } else { | |
567 | if (target < limit->p2.dot_limit) | |
568 | clock.p2 = limit->p2.p2_slow; | |
569 | else | |
570 | clock.p2 = limit->p2.p2_fast; | |
571 | } | |
572 | ||
0206e353 | 573 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 574 | |
42158660 ZY |
575 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
576 | clock.m1++) { | |
577 | for (clock.m2 = limit->m2.min; | |
578 | clock.m2 <= limit->m2.max; clock.m2++) { | |
42158660 ZY |
579 | for (clock.n = limit->n.min; |
580 | clock.n <= limit->n.max; clock.n++) { | |
581 | for (clock.p1 = limit->p1.min; | |
582 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
583 | int this_err; |
584 | ||
ac58c3f0 | 585 | pineview_clock(refclk, &clock); |
1b894b59 CW |
586 | if (!intel_PLL_is_valid(dev, limit, |
587 | &clock)) | |
79e53945 | 588 | continue; |
cec2f356 SP |
589 | if (match_clock && |
590 | clock.p != match_clock->p) | |
591 | continue; | |
79e53945 JB |
592 | |
593 | this_err = abs(clock.dot - target); | |
594 | if (this_err < err) { | |
595 | *best_clock = clock; | |
596 | err = this_err; | |
597 | } | |
598 | } | |
599 | } | |
600 | } | |
601 | } | |
602 | ||
603 | return (err != target); | |
604 | } | |
605 | ||
d4906093 | 606 | static bool |
ee9300bb DV |
607 | g4x_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc, |
608 | int target, int refclk, intel_clock_t *match_clock, | |
609 | intel_clock_t *best_clock) | |
d4906093 ML |
610 | { |
611 | struct drm_device *dev = crtc->dev; | |
d4906093 ML |
612 | intel_clock_t clock; |
613 | int max_n; | |
614 | bool found; | |
6ba770dc AJ |
615 | /* approximately equals target * 0.00585 */ |
616 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
617 | found = false; |
618 | ||
619 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1974cad0 | 620 | if (intel_is_dual_link_lvds(dev)) |
d4906093 ML |
621 | clock.p2 = limit->p2.p2_fast; |
622 | else | |
623 | clock.p2 = limit->p2.p2_slow; | |
624 | } else { | |
625 | if (target < limit->p2.dot_limit) | |
626 | clock.p2 = limit->p2.p2_slow; | |
627 | else | |
628 | clock.p2 = limit->p2.p2_fast; | |
629 | } | |
630 | ||
631 | memset(best_clock, 0, sizeof(*best_clock)); | |
632 | max_n = limit->n.max; | |
f77f13e2 | 633 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 634 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 635 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
636 | for (clock.m1 = limit->m1.max; |
637 | clock.m1 >= limit->m1.min; clock.m1--) { | |
638 | for (clock.m2 = limit->m2.max; | |
639 | clock.m2 >= limit->m2.min; clock.m2--) { | |
640 | for (clock.p1 = limit->p1.max; | |
641 | clock.p1 >= limit->p1.min; clock.p1--) { | |
642 | int this_err; | |
643 | ||
ac58c3f0 | 644 | i9xx_clock(refclk, &clock); |
1b894b59 CW |
645 | if (!intel_PLL_is_valid(dev, limit, |
646 | &clock)) | |
d4906093 | 647 | continue; |
1b894b59 CW |
648 | |
649 | this_err = abs(clock.dot - target); | |
d4906093 ML |
650 | if (this_err < err_most) { |
651 | *best_clock = clock; | |
652 | err_most = this_err; | |
653 | max_n = clock.n; | |
654 | found = true; | |
655 | } | |
656 | } | |
657 | } | |
658 | } | |
659 | } | |
2c07245f ZW |
660 | return found; |
661 | } | |
662 | ||
a0c4da24 | 663 | static bool |
ee9300bb DV |
664 | vlv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc, |
665 | int target, int refclk, intel_clock_t *match_clock, | |
666 | intel_clock_t *best_clock) | |
a0c4da24 JB |
667 | { |
668 | u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2; | |
669 | u32 m, n, fastclk; | |
670 | u32 updrate, minupdate, fracbits, p; | |
671 | unsigned long bestppm, ppm, absppm; | |
672 | int dotclk, flag; | |
673 | ||
af447bd3 | 674 | flag = 0; |
a0c4da24 JB |
675 | dotclk = target * 1000; |
676 | bestppm = 1000000; | |
677 | ppm = absppm = 0; | |
678 | fastclk = dotclk / (2*100); | |
679 | updrate = 0; | |
680 | minupdate = 19200; | |
681 | fracbits = 1; | |
682 | n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0; | |
683 | bestm1 = bestm2 = bestp1 = bestp2 = 0; | |
684 | ||
685 | /* based on hardware requirement, prefer smaller n to precision */ | |
686 | for (n = limit->n.min; n <= ((refclk) / minupdate); n++) { | |
687 | updrate = refclk / n; | |
688 | for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) { | |
689 | for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) { | |
690 | if (p2 > 10) | |
691 | p2 = p2 - 1; | |
692 | p = p1 * p2; | |
693 | /* based on hardware requirement, prefer bigger m1,m2 values */ | |
694 | for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) { | |
695 | m2 = (((2*(fastclk * p * n / m1 )) + | |
696 | refclk) / (2*refclk)); | |
697 | m = m1 * m2; | |
698 | vco = updrate * m; | |
699 | if (vco >= limit->vco.min && vco < limit->vco.max) { | |
700 | ppm = 1000000 * ((vco / p) - fastclk) / fastclk; | |
701 | absppm = (ppm > 0) ? ppm : (-ppm); | |
702 | if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) { | |
703 | bestppm = 0; | |
704 | flag = 1; | |
705 | } | |
706 | if (absppm < bestppm - 10) { | |
707 | bestppm = absppm; | |
708 | flag = 1; | |
709 | } | |
710 | if (flag) { | |
711 | bestn = n; | |
712 | bestm1 = m1; | |
713 | bestm2 = m2; | |
714 | bestp1 = p1; | |
715 | bestp2 = p2; | |
716 | flag = 0; | |
717 | } | |
718 | } | |
719 | } | |
720 | } | |
721 | } | |
722 | } | |
723 | best_clock->n = bestn; | |
724 | best_clock->m1 = bestm1; | |
725 | best_clock->m2 = bestm2; | |
726 | best_clock->p1 = bestp1; | |
727 | best_clock->p2 = bestp2; | |
728 | ||
729 | return true; | |
730 | } | |
a4fc5ed6 | 731 | |
a5c961d1 PZ |
732 | enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv, |
733 | enum pipe pipe) | |
734 | { | |
735 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
736 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
737 | ||
3b117c8f | 738 | return intel_crtc->config.cpu_transcoder; |
a5c961d1 PZ |
739 | } |
740 | ||
a928d536 PZ |
741 | static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe) |
742 | { | |
743 | struct drm_i915_private *dev_priv = dev->dev_private; | |
744 | u32 frame, frame_reg = PIPEFRAME(pipe); | |
745 | ||
746 | frame = I915_READ(frame_reg); | |
747 | ||
748 | if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50)) | |
749 | DRM_DEBUG_KMS("vblank wait timed out\n"); | |
750 | } | |
751 | ||
9d0498a2 JB |
752 | /** |
753 | * intel_wait_for_vblank - wait for vblank on a given pipe | |
754 | * @dev: drm device | |
755 | * @pipe: pipe to wait for | |
756 | * | |
757 | * Wait for vblank to occur on a given pipe. Needed for various bits of | |
758 | * mode setting code. | |
759 | */ | |
760 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) | |
79e53945 | 761 | { |
9d0498a2 | 762 | struct drm_i915_private *dev_priv = dev->dev_private; |
9db4a9c7 | 763 | int pipestat_reg = PIPESTAT(pipe); |
9d0498a2 | 764 | |
a928d536 PZ |
765 | if (INTEL_INFO(dev)->gen >= 5) { |
766 | ironlake_wait_for_vblank(dev, pipe); | |
767 | return; | |
768 | } | |
769 | ||
300387c0 CW |
770 | /* Clear existing vblank status. Note this will clear any other |
771 | * sticky status fields as well. | |
772 | * | |
773 | * This races with i915_driver_irq_handler() with the result | |
774 | * that either function could miss a vblank event. Here it is not | |
775 | * fatal, as we will either wait upon the next vblank interrupt or | |
776 | * timeout. Generally speaking intel_wait_for_vblank() is only | |
777 | * called during modeset at which time the GPU should be idle and | |
778 | * should *not* be performing page flips and thus not waiting on | |
779 | * vblanks... | |
780 | * Currently, the result of us stealing a vblank from the irq | |
781 | * handler is that a single frame will be skipped during swapbuffers. | |
782 | */ | |
783 | I915_WRITE(pipestat_reg, | |
784 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); | |
785 | ||
9d0498a2 | 786 | /* Wait for vblank interrupt bit to set */ |
481b6af3 CW |
787 | if (wait_for(I915_READ(pipestat_reg) & |
788 | PIPE_VBLANK_INTERRUPT_STATUS, | |
789 | 50)) | |
9d0498a2 JB |
790 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
791 | } | |
792 | ||
ab7ad7f6 KP |
793 | /* |
794 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
9d0498a2 JB |
795 | * @dev: drm device |
796 | * @pipe: pipe to wait for | |
797 | * | |
798 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
799 | * spinning on the vblank interrupt status bit, since we won't actually | |
800 | * see an interrupt when the pipe is disabled. | |
801 | * | |
ab7ad7f6 KP |
802 | * On Gen4 and above: |
803 | * wait for the pipe register state bit to turn off | |
804 | * | |
805 | * Otherwise: | |
806 | * wait for the display line value to settle (it usually | |
807 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 808 | * |
9d0498a2 | 809 | */ |
58e10eb9 | 810 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
9d0498a2 JB |
811 | { |
812 | struct drm_i915_private *dev_priv = dev->dev_private; | |
702e7a56 PZ |
813 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
814 | pipe); | |
ab7ad7f6 KP |
815 | |
816 | if (INTEL_INFO(dev)->gen >= 4) { | |
702e7a56 | 817 | int reg = PIPECONF(cpu_transcoder); |
ab7ad7f6 KP |
818 | |
819 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
820 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
821 | 100)) | |
284637d9 | 822 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 823 | } else { |
837ba00f | 824 | u32 last_line, line_mask; |
58e10eb9 | 825 | int reg = PIPEDSL(pipe); |
ab7ad7f6 KP |
826 | unsigned long timeout = jiffies + msecs_to_jiffies(100); |
827 | ||
837ba00f PZ |
828 | if (IS_GEN2(dev)) |
829 | line_mask = DSL_LINEMASK_GEN2; | |
830 | else | |
831 | line_mask = DSL_LINEMASK_GEN3; | |
832 | ||
ab7ad7f6 KP |
833 | /* Wait for the display line to settle */ |
834 | do { | |
837ba00f | 835 | last_line = I915_READ(reg) & line_mask; |
ab7ad7f6 | 836 | mdelay(5); |
837ba00f | 837 | } while (((I915_READ(reg) & line_mask) != last_line) && |
ab7ad7f6 KP |
838 | time_after(timeout, jiffies)); |
839 | if (time_after(jiffies, timeout)) | |
284637d9 | 840 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 841 | } |
79e53945 JB |
842 | } |
843 | ||
b0ea7d37 DL |
844 | /* |
845 | * ibx_digital_port_connected - is the specified port connected? | |
846 | * @dev_priv: i915 private structure | |
847 | * @port: the port to test | |
848 | * | |
849 | * Returns true if @port is connected, false otherwise. | |
850 | */ | |
851 | bool ibx_digital_port_connected(struct drm_i915_private *dev_priv, | |
852 | struct intel_digital_port *port) | |
853 | { | |
854 | u32 bit; | |
855 | ||
c36346e3 DL |
856 | if (HAS_PCH_IBX(dev_priv->dev)) { |
857 | switch(port->port) { | |
858 | case PORT_B: | |
859 | bit = SDE_PORTB_HOTPLUG; | |
860 | break; | |
861 | case PORT_C: | |
862 | bit = SDE_PORTC_HOTPLUG; | |
863 | break; | |
864 | case PORT_D: | |
865 | bit = SDE_PORTD_HOTPLUG; | |
866 | break; | |
867 | default: | |
868 | return true; | |
869 | } | |
870 | } else { | |
871 | switch(port->port) { | |
872 | case PORT_B: | |
873 | bit = SDE_PORTB_HOTPLUG_CPT; | |
874 | break; | |
875 | case PORT_C: | |
876 | bit = SDE_PORTC_HOTPLUG_CPT; | |
877 | break; | |
878 | case PORT_D: | |
879 | bit = SDE_PORTD_HOTPLUG_CPT; | |
880 | break; | |
881 | default: | |
882 | return true; | |
883 | } | |
b0ea7d37 DL |
884 | } |
885 | ||
886 | return I915_READ(SDEISR) & bit; | |
887 | } | |
888 | ||
b24e7179 JB |
889 | static const char *state_string(bool enabled) |
890 | { | |
891 | return enabled ? "on" : "off"; | |
892 | } | |
893 | ||
894 | /* Only for pre-ILK configs */ | |
895 | static void assert_pll(struct drm_i915_private *dev_priv, | |
896 | enum pipe pipe, bool state) | |
897 | { | |
898 | int reg; | |
899 | u32 val; | |
900 | bool cur_state; | |
901 | ||
902 | reg = DPLL(pipe); | |
903 | val = I915_READ(reg); | |
904 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
905 | WARN(cur_state != state, | |
906 | "PLL state assertion failure (expected %s, current %s)\n", | |
907 | state_string(state), state_string(cur_state)); | |
908 | } | |
909 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) | |
910 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) | |
911 | ||
040484af JB |
912 | /* For ILK+ */ |
913 | static void assert_pch_pll(struct drm_i915_private *dev_priv, | |
92b27b08 CW |
914 | struct intel_pch_pll *pll, |
915 | struct intel_crtc *crtc, | |
916 | bool state) | |
040484af | 917 | { |
040484af JB |
918 | u32 val; |
919 | bool cur_state; | |
920 | ||
9d82aa17 ED |
921 | if (HAS_PCH_LPT(dev_priv->dev)) { |
922 | DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n"); | |
923 | return; | |
924 | } | |
925 | ||
92b27b08 CW |
926 | if (WARN (!pll, |
927 | "asserting PCH PLL %s with no PLL\n", state_string(state))) | |
ee7b9f93 | 928 | return; |
ee7b9f93 | 929 | |
92b27b08 CW |
930 | val = I915_READ(pll->pll_reg); |
931 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
932 | WARN(cur_state != state, | |
933 | "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n", | |
934 | pll->pll_reg, state_string(state), state_string(cur_state), val); | |
935 | ||
936 | /* Make sure the selected PLL is correctly attached to the transcoder */ | |
937 | if (crtc && HAS_PCH_CPT(dev_priv->dev)) { | |
d3ccbe86 JB |
938 | u32 pch_dpll; |
939 | ||
940 | pch_dpll = I915_READ(PCH_DPLL_SEL); | |
92b27b08 CW |
941 | cur_state = pll->pll_reg == _PCH_DPLL_B; |
942 | if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state, | |
4bb6f1f3 VS |
943 | "PLL[%d] not attached to this transcoder %c: %08x\n", |
944 | cur_state, pipe_name(crtc->pipe), pch_dpll)) { | |
92b27b08 CW |
945 | cur_state = !!(val >> (4*crtc->pipe + 3)); |
946 | WARN(cur_state != state, | |
4bb6f1f3 | 947 | "PLL[%d] not %s on this transcoder %c: %08x\n", |
92b27b08 CW |
948 | pll->pll_reg == _PCH_DPLL_B, |
949 | state_string(state), | |
4bb6f1f3 | 950 | pipe_name(crtc->pipe), |
92b27b08 CW |
951 | val); |
952 | } | |
d3ccbe86 | 953 | } |
040484af | 954 | } |
92b27b08 CW |
955 | #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true) |
956 | #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false) | |
040484af JB |
957 | |
958 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
959 | enum pipe pipe, bool state) | |
960 | { | |
961 | int reg; | |
962 | u32 val; | |
963 | bool cur_state; | |
ad80a810 PZ |
964 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
965 | pipe); | |
040484af | 966 | |
affa9354 PZ |
967 | if (HAS_DDI(dev_priv->dev)) { |
968 | /* DDI does not have a specific FDI_TX register */ | |
ad80a810 | 969 | reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
bf507ef7 | 970 | val = I915_READ(reg); |
ad80a810 | 971 | cur_state = !!(val & TRANS_DDI_FUNC_ENABLE); |
bf507ef7 ED |
972 | } else { |
973 | reg = FDI_TX_CTL(pipe); | |
974 | val = I915_READ(reg); | |
975 | cur_state = !!(val & FDI_TX_ENABLE); | |
976 | } | |
040484af JB |
977 | WARN(cur_state != state, |
978 | "FDI TX state assertion failure (expected %s, current %s)\n", | |
979 | state_string(state), state_string(cur_state)); | |
980 | } | |
981 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
982 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
983 | ||
984 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
985 | enum pipe pipe, bool state) | |
986 | { | |
987 | int reg; | |
988 | u32 val; | |
989 | bool cur_state; | |
990 | ||
d63fa0dc PZ |
991 | reg = FDI_RX_CTL(pipe); |
992 | val = I915_READ(reg); | |
993 | cur_state = !!(val & FDI_RX_ENABLE); | |
040484af JB |
994 | WARN(cur_state != state, |
995 | "FDI RX state assertion failure (expected %s, current %s)\n", | |
996 | state_string(state), state_string(cur_state)); | |
997 | } | |
998 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
999 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1000 | ||
1001 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1002 | enum pipe pipe) | |
1003 | { | |
1004 | int reg; | |
1005 | u32 val; | |
1006 | ||
1007 | /* ILK FDI PLL is always enabled */ | |
1008 | if (dev_priv->info->gen == 5) | |
1009 | return; | |
1010 | ||
bf507ef7 | 1011 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
affa9354 | 1012 | if (HAS_DDI(dev_priv->dev)) |
bf507ef7 ED |
1013 | return; |
1014 | ||
040484af JB |
1015 | reg = FDI_TX_CTL(pipe); |
1016 | val = I915_READ(reg); | |
1017 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); | |
1018 | } | |
1019 | ||
1020 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, | |
1021 | enum pipe pipe) | |
1022 | { | |
1023 | int reg; | |
1024 | u32 val; | |
1025 | ||
1026 | reg = FDI_RX_CTL(pipe); | |
1027 | val = I915_READ(reg); | |
1028 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); | |
1029 | } | |
1030 | ||
ea0760cf JB |
1031 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1032 | enum pipe pipe) | |
1033 | { | |
1034 | int pp_reg, lvds_reg; | |
1035 | u32 val; | |
1036 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1037 | bool locked = true; |
ea0760cf JB |
1038 | |
1039 | if (HAS_PCH_SPLIT(dev_priv->dev)) { | |
1040 | pp_reg = PCH_PP_CONTROL; | |
1041 | lvds_reg = PCH_LVDS; | |
1042 | } else { | |
1043 | pp_reg = PP_CONTROL; | |
1044 | lvds_reg = LVDS; | |
1045 | } | |
1046 | ||
1047 | val = I915_READ(pp_reg); | |
1048 | if (!(val & PANEL_POWER_ON) || | |
1049 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) | |
1050 | locked = false; | |
1051 | ||
1052 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) | |
1053 | panel_pipe = PIPE_B; | |
1054 | ||
1055 | WARN(panel_pipe == pipe && locked, | |
1056 | "panel assertion failure, pipe %c regs locked\n", | |
9db4a9c7 | 1057 | pipe_name(pipe)); |
ea0760cf JB |
1058 | } |
1059 | ||
b840d907 JB |
1060 | void assert_pipe(struct drm_i915_private *dev_priv, |
1061 | enum pipe pipe, bool state) | |
b24e7179 JB |
1062 | { |
1063 | int reg; | |
1064 | u32 val; | |
63d7bbe9 | 1065 | bool cur_state; |
702e7a56 PZ |
1066 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1067 | pipe); | |
b24e7179 | 1068 | |
8e636784 DV |
1069 | /* if we need the pipe A quirk it must be always on */ |
1070 | if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) | |
1071 | state = true; | |
1072 | ||
b97186f0 PZ |
1073 | if (!intel_display_power_enabled(dev_priv->dev, |
1074 | POWER_DOMAIN_TRANSCODER(cpu_transcoder))) { | |
69310161 PZ |
1075 | cur_state = false; |
1076 | } else { | |
1077 | reg = PIPECONF(cpu_transcoder); | |
1078 | val = I915_READ(reg); | |
1079 | cur_state = !!(val & PIPECONF_ENABLE); | |
1080 | } | |
1081 | ||
63d7bbe9 JB |
1082 | WARN(cur_state != state, |
1083 | "pipe %c assertion failure (expected %s, current %s)\n", | |
9db4a9c7 | 1084 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1085 | } |
1086 | ||
931872fc CW |
1087 | static void assert_plane(struct drm_i915_private *dev_priv, |
1088 | enum plane plane, bool state) | |
b24e7179 JB |
1089 | { |
1090 | int reg; | |
1091 | u32 val; | |
931872fc | 1092 | bool cur_state; |
b24e7179 JB |
1093 | |
1094 | reg = DSPCNTR(plane); | |
1095 | val = I915_READ(reg); | |
931872fc CW |
1096 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
1097 | WARN(cur_state != state, | |
1098 | "plane %c assertion failure (expected %s, current %s)\n", | |
1099 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1100 | } |
1101 | ||
931872fc CW |
1102 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1103 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1104 | ||
b24e7179 JB |
1105 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1106 | enum pipe pipe) | |
1107 | { | |
1108 | int reg, i; | |
1109 | u32 val; | |
1110 | int cur_pipe; | |
1111 | ||
19ec1358 | 1112 | /* Planes are fixed to pipes on ILK+ */ |
da6ecc5d | 1113 | if (HAS_PCH_SPLIT(dev_priv->dev) || IS_VALLEYVIEW(dev_priv->dev)) { |
28c05794 AJ |
1114 | reg = DSPCNTR(pipe); |
1115 | val = I915_READ(reg); | |
1116 | WARN((val & DISPLAY_PLANE_ENABLE), | |
1117 | "plane %c assertion failure, should be disabled but not\n", | |
1118 | plane_name(pipe)); | |
19ec1358 | 1119 | return; |
28c05794 | 1120 | } |
19ec1358 | 1121 | |
b24e7179 JB |
1122 | /* Need to check both planes against the pipe */ |
1123 | for (i = 0; i < 2; i++) { | |
1124 | reg = DSPCNTR(i); | |
1125 | val = I915_READ(reg); | |
1126 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1127 | DISPPLANE_SEL_PIPE_SHIFT; | |
1128 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, | |
9db4a9c7 JB |
1129 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1130 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1131 | } |
1132 | } | |
1133 | ||
19332d7a JB |
1134 | static void assert_sprites_disabled(struct drm_i915_private *dev_priv, |
1135 | enum pipe pipe) | |
1136 | { | |
1137 | int reg, i; | |
1138 | u32 val; | |
1139 | ||
1140 | if (!IS_VALLEYVIEW(dev_priv->dev)) | |
1141 | return; | |
1142 | ||
1143 | /* Need to check both planes against the pipe */ | |
1144 | for (i = 0; i < dev_priv->num_plane; i++) { | |
1145 | reg = SPCNTR(pipe, i); | |
1146 | val = I915_READ(reg); | |
1147 | WARN((val & SP_ENABLE), | |
06da8da2 VS |
1148 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
1149 | sprite_name(pipe, i), pipe_name(pipe)); | |
19332d7a JB |
1150 | } |
1151 | } | |
1152 | ||
92f2584a JB |
1153 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
1154 | { | |
1155 | u32 val; | |
1156 | bool enabled; | |
1157 | ||
9d82aa17 ED |
1158 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1159 | DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n"); | |
1160 | return; | |
1161 | } | |
1162 | ||
92f2584a JB |
1163 | val = I915_READ(PCH_DREF_CONTROL); |
1164 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1165 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
1166 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); | |
1167 | } | |
1168 | ||
ab9412ba DV |
1169 | static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv, |
1170 | enum pipe pipe) | |
92f2584a JB |
1171 | { |
1172 | int reg; | |
1173 | u32 val; | |
1174 | bool enabled; | |
1175 | ||
ab9412ba | 1176 | reg = PCH_TRANSCONF(pipe); |
92f2584a JB |
1177 | val = I915_READ(reg); |
1178 | enabled = !!(val & TRANS_ENABLE); | |
9db4a9c7 JB |
1179 | WARN(enabled, |
1180 | "transcoder assertion failed, should be off on pipe %c but is still active\n", | |
1181 | pipe_name(pipe)); | |
92f2584a JB |
1182 | } |
1183 | ||
4e634389 KP |
1184 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1185 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1186 | { |
1187 | if ((val & DP_PORT_EN) == 0) | |
1188 | return false; | |
1189 | ||
1190 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1191 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); | |
1192 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); | |
1193 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) | |
1194 | return false; | |
1195 | } else { | |
1196 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1197 | return false; | |
1198 | } | |
1199 | return true; | |
1200 | } | |
1201 | ||
1519b995 KP |
1202 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1203 | enum pipe pipe, u32 val) | |
1204 | { | |
dc0fa718 | 1205 | if ((val & SDVO_ENABLE) == 0) |
1519b995 KP |
1206 | return false; |
1207 | ||
1208 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
dc0fa718 | 1209 | if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe)) |
1519b995 KP |
1210 | return false; |
1211 | } else { | |
dc0fa718 | 1212 | if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe)) |
1519b995 KP |
1213 | return false; |
1214 | } | |
1215 | return true; | |
1216 | } | |
1217 | ||
1218 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1219 | enum pipe pipe, u32 val) | |
1220 | { | |
1221 | if ((val & LVDS_PORT_EN) == 0) | |
1222 | return false; | |
1223 | ||
1224 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1225 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1226 | return false; | |
1227 | } else { | |
1228 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1229 | return false; | |
1230 | } | |
1231 | return true; | |
1232 | } | |
1233 | ||
1234 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1235 | enum pipe pipe, u32 val) | |
1236 | { | |
1237 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1238 | return false; | |
1239 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1240 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1241 | return false; | |
1242 | } else { | |
1243 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1244 | return false; | |
1245 | } | |
1246 | return true; | |
1247 | } | |
1248 | ||
291906f1 | 1249 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0575e92 | 1250 | enum pipe pipe, int reg, u32 port_sel) |
291906f1 | 1251 | { |
47a05eca | 1252 | u32 val = I915_READ(reg); |
4e634389 | 1253 | WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1254 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1255 | reg, pipe_name(pipe)); |
de9a35ab | 1256 | |
75c5da27 DV |
1257 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 |
1258 | && (val & DP_PIPEB_SELECT), | |
de9a35ab | 1259 | "IBX PCH dp port still using transcoder B\n"); |
291906f1 JB |
1260 | } |
1261 | ||
1262 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1263 | enum pipe pipe, int reg) | |
1264 | { | |
47a05eca | 1265 | u32 val = I915_READ(reg); |
b70ad586 | 1266 | WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1267 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1268 | reg, pipe_name(pipe)); |
de9a35ab | 1269 | |
dc0fa718 | 1270 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0 |
75c5da27 | 1271 | && (val & SDVO_PIPE_B_SELECT), |
de9a35ab | 1272 | "IBX PCH hdmi port still using transcoder B\n"); |
291906f1 JB |
1273 | } |
1274 | ||
1275 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1276 | enum pipe pipe) | |
1277 | { | |
1278 | int reg; | |
1279 | u32 val; | |
291906f1 | 1280 | |
f0575e92 KP |
1281 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1282 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1283 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1284 | |
1285 | reg = PCH_ADPA; | |
1286 | val = I915_READ(reg); | |
b70ad586 | 1287 | WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1288 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1289 | pipe_name(pipe)); |
291906f1 JB |
1290 | |
1291 | reg = PCH_LVDS; | |
1292 | val = I915_READ(reg); | |
b70ad586 | 1293 | WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1294 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1295 | pipe_name(pipe)); |
291906f1 | 1296 | |
e2debe91 PZ |
1297 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB); |
1298 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC); | |
1299 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID); | |
291906f1 JB |
1300 | } |
1301 | ||
63d7bbe9 JB |
1302 | /** |
1303 | * intel_enable_pll - enable a PLL | |
1304 | * @dev_priv: i915 private structure | |
1305 | * @pipe: pipe PLL to enable | |
1306 | * | |
1307 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to | |
1308 | * make sure the PLL reg is writable first though, since the panel write | |
1309 | * protect mechanism may be enabled. | |
1310 | * | |
1311 | * Note! This is for pre-ILK only. | |
7434a255 TR |
1312 | * |
1313 | * Unfortunately needed by dvo_ns2501 since the dvo depends on it running. | |
63d7bbe9 JB |
1314 | */ |
1315 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1316 | { | |
1317 | int reg; | |
1318 | u32 val; | |
1319 | ||
58c6eaa2 DV |
1320 | assert_pipe_disabled(dev_priv, pipe); |
1321 | ||
63d7bbe9 | 1322 | /* No really, not for ILK+ */ |
a0c4da24 | 1323 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5); |
63d7bbe9 JB |
1324 | |
1325 | /* PLL is protected by panel, make sure we can write it */ | |
1326 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) | |
1327 | assert_panel_unlocked(dev_priv, pipe); | |
1328 | ||
1329 | reg = DPLL(pipe); | |
1330 | val = I915_READ(reg); | |
1331 | val |= DPLL_VCO_ENABLE; | |
1332 | ||
1333 | /* We do this three times for luck */ | |
1334 | I915_WRITE(reg, val); | |
1335 | POSTING_READ(reg); | |
1336 | udelay(150); /* wait for warmup */ | |
1337 | I915_WRITE(reg, val); | |
1338 | POSTING_READ(reg); | |
1339 | udelay(150); /* wait for warmup */ | |
1340 | I915_WRITE(reg, val); | |
1341 | POSTING_READ(reg); | |
1342 | udelay(150); /* wait for warmup */ | |
1343 | } | |
1344 | ||
1345 | /** | |
1346 | * intel_disable_pll - disable a PLL | |
1347 | * @dev_priv: i915 private structure | |
1348 | * @pipe: pipe PLL to disable | |
1349 | * | |
1350 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1351 | * | |
1352 | * Note! This is for pre-ILK only. | |
1353 | */ | |
1354 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1355 | { | |
1356 | int reg; | |
1357 | u32 val; | |
1358 | ||
1359 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1360 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1361 | return; | |
1362 | ||
1363 | /* Make sure the pipe isn't still relying on us */ | |
1364 | assert_pipe_disabled(dev_priv, pipe); | |
1365 | ||
1366 | reg = DPLL(pipe); | |
1367 | val = I915_READ(reg); | |
1368 | val &= ~DPLL_VCO_ENABLE; | |
1369 | I915_WRITE(reg, val); | |
1370 | POSTING_READ(reg); | |
1371 | } | |
1372 | ||
89b667f8 JB |
1373 | void vlv_wait_port_ready(struct drm_i915_private *dev_priv, int port) |
1374 | { | |
1375 | u32 port_mask; | |
1376 | ||
1377 | if (!port) | |
1378 | port_mask = DPLL_PORTB_READY_MASK; | |
1379 | else | |
1380 | port_mask = DPLL_PORTC_READY_MASK; | |
1381 | ||
1382 | if (wait_for((I915_READ(DPLL(0)) & port_mask) == 0, 1000)) | |
1383 | WARN(1, "timed out waiting for port %c ready: 0x%08x\n", | |
1384 | 'B' + port, I915_READ(DPLL(0))); | |
1385 | } | |
1386 | ||
92f2584a | 1387 | /** |
b6b4e185 | 1388 | * ironlake_enable_pch_pll - enable PCH PLL |
92f2584a JB |
1389 | * @dev_priv: i915 private structure |
1390 | * @pipe: pipe PLL to enable | |
1391 | * | |
1392 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1393 | * drives the transcoder clock. | |
1394 | */ | |
b6b4e185 | 1395 | static void ironlake_enable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1396 | { |
ee7b9f93 | 1397 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
48da64a8 | 1398 | struct intel_pch_pll *pll; |
92f2584a JB |
1399 | int reg; |
1400 | u32 val; | |
1401 | ||
48da64a8 | 1402 | /* PCH PLLs only available on ILK, SNB and IVB */ |
92f2584a | 1403 | BUG_ON(dev_priv->info->gen < 5); |
48da64a8 CW |
1404 | pll = intel_crtc->pch_pll; |
1405 | if (pll == NULL) | |
1406 | return; | |
1407 | ||
1408 | if (WARN_ON(pll->refcount == 0)) | |
1409 | return; | |
ee7b9f93 JB |
1410 | |
1411 | DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n", | |
1412 | pll->pll_reg, pll->active, pll->on, | |
1413 | intel_crtc->base.base.id); | |
92f2584a JB |
1414 | |
1415 | /* PCH refclock must be enabled first */ | |
1416 | assert_pch_refclk_enabled(dev_priv); | |
1417 | ||
ee7b9f93 | 1418 | if (pll->active++ && pll->on) { |
92b27b08 | 1419 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
ee7b9f93 JB |
1420 | return; |
1421 | } | |
1422 | ||
1423 | DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg); | |
1424 | ||
1425 | reg = pll->pll_reg; | |
92f2584a JB |
1426 | val = I915_READ(reg); |
1427 | val |= DPLL_VCO_ENABLE; | |
1428 | I915_WRITE(reg, val); | |
1429 | POSTING_READ(reg); | |
1430 | udelay(200); | |
ee7b9f93 JB |
1431 | |
1432 | pll->on = true; | |
92f2584a JB |
1433 | } |
1434 | ||
ee7b9f93 | 1435 | static void intel_disable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1436 | { |
ee7b9f93 JB |
1437 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
1438 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
92f2584a | 1439 | int reg; |
ee7b9f93 | 1440 | u32 val; |
4c609cb8 | 1441 | |
92f2584a JB |
1442 | /* PCH only available on ILK+ */ |
1443 | BUG_ON(dev_priv->info->gen < 5); | |
ee7b9f93 JB |
1444 | if (pll == NULL) |
1445 | return; | |
92f2584a | 1446 | |
48da64a8 CW |
1447 | if (WARN_ON(pll->refcount == 0)) |
1448 | return; | |
7a419866 | 1449 | |
ee7b9f93 JB |
1450 | DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n", |
1451 | pll->pll_reg, pll->active, pll->on, | |
1452 | intel_crtc->base.base.id); | |
7a419866 | 1453 | |
48da64a8 | 1454 | if (WARN_ON(pll->active == 0)) { |
92b27b08 | 1455 | assert_pch_pll_disabled(dev_priv, pll, NULL); |
48da64a8 CW |
1456 | return; |
1457 | } | |
1458 | ||
ee7b9f93 | 1459 | if (--pll->active) { |
92b27b08 | 1460 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
7a419866 | 1461 | return; |
ee7b9f93 JB |
1462 | } |
1463 | ||
1464 | DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg); | |
1465 | ||
1466 | /* Make sure transcoder isn't still depending on us */ | |
ab9412ba | 1467 | assert_pch_transcoder_disabled(dev_priv, intel_crtc->pipe); |
7a419866 | 1468 | |
ee7b9f93 | 1469 | reg = pll->pll_reg; |
92f2584a JB |
1470 | val = I915_READ(reg); |
1471 | val &= ~DPLL_VCO_ENABLE; | |
1472 | I915_WRITE(reg, val); | |
1473 | POSTING_READ(reg); | |
1474 | udelay(200); | |
ee7b9f93 JB |
1475 | |
1476 | pll->on = false; | |
92f2584a JB |
1477 | } |
1478 | ||
b8a4f404 PZ |
1479 | static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
1480 | enum pipe pipe) | |
040484af | 1481 | { |
23670b32 | 1482 | struct drm_device *dev = dev_priv->dev; |
7c26e5c6 | 1483 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
23670b32 | 1484 | uint32_t reg, val, pipeconf_val; |
040484af JB |
1485 | |
1486 | /* PCH only available on ILK+ */ | |
1487 | BUG_ON(dev_priv->info->gen < 5); | |
1488 | ||
1489 | /* Make sure PCH DPLL is enabled */ | |
92b27b08 CW |
1490 | assert_pch_pll_enabled(dev_priv, |
1491 | to_intel_crtc(crtc)->pch_pll, | |
1492 | to_intel_crtc(crtc)); | |
040484af JB |
1493 | |
1494 | /* FDI must be feeding us bits for PCH ports */ | |
1495 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1496 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1497 | ||
23670b32 DV |
1498 | if (HAS_PCH_CPT(dev)) { |
1499 | /* Workaround: Set the timing override bit before enabling the | |
1500 | * pch transcoder. */ | |
1501 | reg = TRANS_CHICKEN2(pipe); | |
1502 | val = I915_READ(reg); | |
1503 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1504 | I915_WRITE(reg, val); | |
59c859d6 | 1505 | } |
23670b32 | 1506 | |
ab9412ba | 1507 | reg = PCH_TRANSCONF(pipe); |
040484af | 1508 | val = I915_READ(reg); |
5f7f726d | 1509 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1510 | |
1511 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1512 | /* | |
1513 | * make the BPC in transcoder be consistent with | |
1514 | * that in pipeconf reg. | |
1515 | */ | |
dfd07d72 DV |
1516 | val &= ~PIPECONF_BPC_MASK; |
1517 | val |= pipeconf_val & PIPECONF_BPC_MASK; | |
e9bcff5c | 1518 | } |
5f7f726d PZ |
1519 | |
1520 | val &= ~TRANS_INTERLACE_MASK; | |
1521 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 PZ |
1522 | if (HAS_PCH_IBX(dev_priv->dev) && |
1523 | intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) | |
1524 | val |= TRANS_LEGACY_INTERLACED_ILK; | |
1525 | else | |
1526 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1527 | else |
1528 | val |= TRANS_PROGRESSIVE; | |
1529 | ||
040484af JB |
1530 | I915_WRITE(reg, val | TRANS_ENABLE); |
1531 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
4bb6f1f3 | 1532 | DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe)); |
040484af JB |
1533 | } |
1534 | ||
8fb033d7 | 1535 | static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
937bb610 | 1536 | enum transcoder cpu_transcoder) |
040484af | 1537 | { |
8fb033d7 | 1538 | u32 val, pipeconf_val; |
8fb033d7 PZ |
1539 | |
1540 | /* PCH only available on ILK+ */ | |
1541 | BUG_ON(dev_priv->info->gen < 5); | |
1542 | ||
8fb033d7 | 1543 | /* FDI must be feeding us bits for PCH ports */ |
1a240d4d | 1544 | assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder); |
937bb610 | 1545 | assert_fdi_rx_enabled(dev_priv, TRANSCODER_A); |
8fb033d7 | 1546 | |
223a6fdf PZ |
1547 | /* Workaround: set timing override bit. */ |
1548 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 1549 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf PZ |
1550 | I915_WRITE(_TRANSA_CHICKEN2, val); |
1551 | ||
25f3ef11 | 1552 | val = TRANS_ENABLE; |
937bb610 | 1553 | pipeconf_val = I915_READ(PIPECONF(cpu_transcoder)); |
8fb033d7 | 1554 | |
9a76b1c6 PZ |
1555 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) == |
1556 | PIPECONF_INTERLACED_ILK) | |
a35f2679 | 1557 | val |= TRANS_INTERLACED; |
8fb033d7 PZ |
1558 | else |
1559 | val |= TRANS_PROGRESSIVE; | |
1560 | ||
ab9412ba DV |
1561 | I915_WRITE(LPT_TRANSCONF, val); |
1562 | if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100)) | |
937bb610 | 1563 | DRM_ERROR("Failed to enable PCH transcoder\n"); |
8fb033d7 PZ |
1564 | } |
1565 | ||
b8a4f404 PZ |
1566 | static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv, |
1567 | enum pipe pipe) | |
040484af | 1568 | { |
23670b32 DV |
1569 | struct drm_device *dev = dev_priv->dev; |
1570 | uint32_t reg, val; | |
040484af JB |
1571 | |
1572 | /* FDI relies on the transcoder */ | |
1573 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1574 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1575 | ||
291906f1 JB |
1576 | /* Ports must be off as well */ |
1577 | assert_pch_ports_disabled(dev_priv, pipe); | |
1578 | ||
ab9412ba | 1579 | reg = PCH_TRANSCONF(pipe); |
040484af JB |
1580 | val = I915_READ(reg); |
1581 | val &= ~TRANS_ENABLE; | |
1582 | I915_WRITE(reg, val); | |
1583 | /* wait for PCH transcoder off, transcoder state */ | |
1584 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4bb6f1f3 | 1585 | DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe)); |
23670b32 DV |
1586 | |
1587 | if (!HAS_PCH_IBX(dev)) { | |
1588 | /* Workaround: Clear the timing override chicken bit again. */ | |
1589 | reg = TRANS_CHICKEN2(pipe); | |
1590 | val = I915_READ(reg); | |
1591 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1592 | I915_WRITE(reg, val); | |
1593 | } | |
040484af JB |
1594 | } |
1595 | ||
ab4d966c | 1596 | static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv) |
8fb033d7 | 1597 | { |
8fb033d7 PZ |
1598 | u32 val; |
1599 | ||
ab9412ba | 1600 | val = I915_READ(LPT_TRANSCONF); |
8fb033d7 | 1601 | val &= ~TRANS_ENABLE; |
ab9412ba | 1602 | I915_WRITE(LPT_TRANSCONF, val); |
8fb033d7 | 1603 | /* wait for PCH transcoder off, transcoder state */ |
ab9412ba | 1604 | if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50)) |
8a52fd9f | 1605 | DRM_ERROR("Failed to disable PCH transcoder\n"); |
223a6fdf PZ |
1606 | |
1607 | /* Workaround: clear timing override bit. */ | |
1608 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 1609 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf | 1610 | I915_WRITE(_TRANSA_CHICKEN2, val); |
040484af JB |
1611 | } |
1612 | ||
b24e7179 | 1613 | /** |
309cfea8 | 1614 | * intel_enable_pipe - enable a pipe, asserting requirements |
b24e7179 JB |
1615 | * @dev_priv: i915 private structure |
1616 | * @pipe: pipe to enable | |
040484af | 1617 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
b24e7179 JB |
1618 | * |
1619 | * Enable @pipe, making sure that various hardware specific requirements | |
1620 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. | |
1621 | * | |
1622 | * @pipe should be %PIPE_A or %PIPE_B. | |
1623 | * | |
1624 | * Will wait until the pipe is actually running (i.e. first vblank) before | |
1625 | * returning. | |
1626 | */ | |
040484af JB |
1627 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
1628 | bool pch_port) | |
b24e7179 | 1629 | { |
702e7a56 PZ |
1630 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1631 | pipe); | |
1a240d4d | 1632 | enum pipe pch_transcoder; |
b24e7179 JB |
1633 | int reg; |
1634 | u32 val; | |
1635 | ||
58c6eaa2 DV |
1636 | assert_planes_disabled(dev_priv, pipe); |
1637 | assert_sprites_disabled(dev_priv, pipe); | |
1638 | ||
681e5811 | 1639 | if (HAS_PCH_LPT(dev_priv->dev)) |
cc391bbb PZ |
1640 | pch_transcoder = TRANSCODER_A; |
1641 | else | |
1642 | pch_transcoder = pipe; | |
1643 | ||
b24e7179 JB |
1644 | /* |
1645 | * A pipe without a PLL won't actually be able to drive bits from | |
1646 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
1647 | * need the check. | |
1648 | */ | |
1649 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
1650 | assert_pll_enabled(dev_priv, pipe); | |
040484af JB |
1651 | else { |
1652 | if (pch_port) { | |
1653 | /* if driving the PCH, we need FDI enabled */ | |
cc391bbb | 1654 | assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder); |
1a240d4d DV |
1655 | assert_fdi_tx_pll_enabled(dev_priv, |
1656 | (enum pipe) cpu_transcoder); | |
040484af JB |
1657 | } |
1658 | /* FIXME: assert CPU port conditions for SNB+ */ | |
1659 | } | |
b24e7179 | 1660 | |
702e7a56 | 1661 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 1662 | val = I915_READ(reg); |
00d70b15 CW |
1663 | if (val & PIPECONF_ENABLE) |
1664 | return; | |
1665 | ||
1666 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
b24e7179 JB |
1667 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1668 | } | |
1669 | ||
1670 | /** | |
309cfea8 | 1671 | * intel_disable_pipe - disable a pipe, asserting requirements |
b24e7179 JB |
1672 | * @dev_priv: i915 private structure |
1673 | * @pipe: pipe to disable | |
1674 | * | |
1675 | * Disable @pipe, making sure that various hardware specific requirements | |
1676 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. | |
1677 | * | |
1678 | * @pipe should be %PIPE_A or %PIPE_B. | |
1679 | * | |
1680 | * Will wait until the pipe has shut down before returning. | |
1681 | */ | |
1682 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, | |
1683 | enum pipe pipe) | |
1684 | { | |
702e7a56 PZ |
1685 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1686 | pipe); | |
b24e7179 JB |
1687 | int reg; |
1688 | u32 val; | |
1689 | ||
1690 | /* | |
1691 | * Make sure planes won't keep trying to pump pixels to us, | |
1692 | * or we might hang the display. | |
1693 | */ | |
1694 | assert_planes_disabled(dev_priv, pipe); | |
19332d7a | 1695 | assert_sprites_disabled(dev_priv, pipe); |
b24e7179 JB |
1696 | |
1697 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1698 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1699 | return; | |
1700 | ||
702e7a56 | 1701 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 1702 | val = I915_READ(reg); |
00d70b15 CW |
1703 | if ((val & PIPECONF_ENABLE) == 0) |
1704 | return; | |
1705 | ||
1706 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); | |
b24e7179 JB |
1707 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
1708 | } | |
1709 | ||
d74362c9 KP |
1710 | /* |
1711 | * Plane regs are double buffered, going from enabled->disabled needs a | |
1712 | * trigger in order to latch. The display address reg provides this. | |
1713 | */ | |
6f1d69b0 | 1714 | void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
d74362c9 KP |
1715 | enum plane plane) |
1716 | { | |
14f86147 DL |
1717 | if (dev_priv->info->gen >= 4) |
1718 | I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane))); | |
1719 | else | |
1720 | I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane))); | |
d74362c9 KP |
1721 | } |
1722 | ||
b24e7179 JB |
1723 | /** |
1724 | * intel_enable_plane - enable a display plane on a given pipe | |
1725 | * @dev_priv: i915 private structure | |
1726 | * @plane: plane to enable | |
1727 | * @pipe: pipe being fed | |
1728 | * | |
1729 | * Enable @plane on @pipe, making sure that @pipe is running first. | |
1730 | */ | |
1731 | static void intel_enable_plane(struct drm_i915_private *dev_priv, | |
1732 | enum plane plane, enum pipe pipe) | |
1733 | { | |
1734 | int reg; | |
1735 | u32 val; | |
1736 | ||
1737 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
1738 | assert_pipe_enabled(dev_priv, pipe); | |
1739 | ||
1740 | reg = DSPCNTR(plane); | |
1741 | val = I915_READ(reg); | |
00d70b15 CW |
1742 | if (val & DISPLAY_PLANE_ENABLE) |
1743 | return; | |
1744 | ||
1745 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); | |
d74362c9 | 1746 | intel_flush_display_plane(dev_priv, plane); |
b24e7179 JB |
1747 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1748 | } | |
1749 | ||
b24e7179 JB |
1750 | /** |
1751 | * intel_disable_plane - disable a display plane | |
1752 | * @dev_priv: i915 private structure | |
1753 | * @plane: plane to disable | |
1754 | * @pipe: pipe consuming the data | |
1755 | * | |
1756 | * Disable @plane; should be an independent operation. | |
1757 | */ | |
1758 | static void intel_disable_plane(struct drm_i915_private *dev_priv, | |
1759 | enum plane plane, enum pipe pipe) | |
1760 | { | |
1761 | int reg; | |
1762 | u32 val; | |
1763 | ||
1764 | reg = DSPCNTR(plane); | |
1765 | val = I915_READ(reg); | |
00d70b15 CW |
1766 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
1767 | return; | |
1768 | ||
1769 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); | |
b24e7179 JB |
1770 | intel_flush_display_plane(dev_priv, plane); |
1771 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1772 | } | |
1773 | ||
693db184 CW |
1774 | static bool need_vtd_wa(struct drm_device *dev) |
1775 | { | |
1776 | #ifdef CONFIG_INTEL_IOMMU | |
1777 | if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped) | |
1778 | return true; | |
1779 | #endif | |
1780 | return false; | |
1781 | } | |
1782 | ||
127bd2ac | 1783 | int |
48b956c5 | 1784 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
05394f39 | 1785 | struct drm_i915_gem_object *obj, |
919926ae | 1786 | struct intel_ring_buffer *pipelined) |
6b95a207 | 1787 | { |
ce453d81 | 1788 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
1789 | u32 alignment; |
1790 | int ret; | |
1791 | ||
05394f39 | 1792 | switch (obj->tiling_mode) { |
6b95a207 | 1793 | case I915_TILING_NONE: |
534843da CW |
1794 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
1795 | alignment = 128 * 1024; | |
a6c45cf0 | 1796 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
1797 | alignment = 4 * 1024; |
1798 | else | |
1799 | alignment = 64 * 1024; | |
6b95a207 KH |
1800 | break; |
1801 | case I915_TILING_X: | |
1802 | /* pin() will align the object as required by fence */ | |
1803 | alignment = 0; | |
1804 | break; | |
1805 | case I915_TILING_Y: | |
8bb6e959 DV |
1806 | /* Despite that we check this in framebuffer_init userspace can |
1807 | * screw us over and change the tiling after the fact. Only | |
1808 | * pinned buffers can't change their tiling. */ | |
1809 | DRM_DEBUG_DRIVER("Y tiled not allowed for scan out buffers\n"); | |
6b95a207 KH |
1810 | return -EINVAL; |
1811 | default: | |
1812 | BUG(); | |
1813 | } | |
1814 | ||
693db184 CW |
1815 | /* Note that the w/a also requires 64 PTE of padding following the |
1816 | * bo. We currently fill all unused PTE with the shadow page and so | |
1817 | * we should always have valid PTE following the scanout preventing | |
1818 | * the VT-d warning. | |
1819 | */ | |
1820 | if (need_vtd_wa(dev) && alignment < 256 * 1024) | |
1821 | alignment = 256 * 1024; | |
1822 | ||
ce453d81 | 1823 | dev_priv->mm.interruptible = false; |
2da3b9b9 | 1824 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
48b956c5 | 1825 | if (ret) |
ce453d81 | 1826 | goto err_interruptible; |
6b95a207 KH |
1827 | |
1828 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
1829 | * fence, whereas 965+ only requires a fence if using | |
1830 | * framebuffer compression. For simplicity, we always install | |
1831 | * a fence as the cost is not that onerous. | |
1832 | */ | |
06d98131 | 1833 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
1834 | if (ret) |
1835 | goto err_unpin; | |
1690e1eb | 1836 | |
9a5a53b3 | 1837 | i915_gem_object_pin_fence(obj); |
6b95a207 | 1838 | |
ce453d81 | 1839 | dev_priv->mm.interruptible = true; |
6b95a207 | 1840 | return 0; |
48b956c5 CW |
1841 | |
1842 | err_unpin: | |
1843 | i915_gem_object_unpin(obj); | |
ce453d81 CW |
1844 | err_interruptible: |
1845 | dev_priv->mm.interruptible = true; | |
48b956c5 | 1846 | return ret; |
6b95a207 KH |
1847 | } |
1848 | ||
1690e1eb CW |
1849 | void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
1850 | { | |
1851 | i915_gem_object_unpin_fence(obj); | |
1852 | i915_gem_object_unpin(obj); | |
1853 | } | |
1854 | ||
c2c75131 DV |
1855 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
1856 | * is assumed to be a power-of-two. */ | |
bc752862 CW |
1857 | unsigned long intel_gen4_compute_page_offset(int *x, int *y, |
1858 | unsigned int tiling_mode, | |
1859 | unsigned int cpp, | |
1860 | unsigned int pitch) | |
c2c75131 | 1861 | { |
bc752862 CW |
1862 | if (tiling_mode != I915_TILING_NONE) { |
1863 | unsigned int tile_rows, tiles; | |
c2c75131 | 1864 | |
bc752862 CW |
1865 | tile_rows = *y / 8; |
1866 | *y %= 8; | |
c2c75131 | 1867 | |
bc752862 CW |
1868 | tiles = *x / (512/cpp); |
1869 | *x %= 512/cpp; | |
1870 | ||
1871 | return tile_rows * pitch * 8 + tiles * 4096; | |
1872 | } else { | |
1873 | unsigned int offset; | |
1874 | ||
1875 | offset = *y * pitch + *x * cpp; | |
1876 | *y = 0; | |
1877 | *x = (offset & 4095) / cpp; | |
1878 | return offset & -4096; | |
1879 | } | |
c2c75131 DV |
1880 | } |
1881 | ||
17638cd6 JB |
1882 | static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
1883 | int x, int y) | |
81255565 JB |
1884 | { |
1885 | struct drm_device *dev = crtc->dev; | |
1886 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1887 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1888 | struct intel_framebuffer *intel_fb; | |
05394f39 | 1889 | struct drm_i915_gem_object *obj; |
81255565 | 1890 | int plane = intel_crtc->plane; |
e506a0c6 | 1891 | unsigned long linear_offset; |
81255565 | 1892 | u32 dspcntr; |
5eddb70b | 1893 | u32 reg; |
81255565 JB |
1894 | |
1895 | switch (plane) { | |
1896 | case 0: | |
1897 | case 1: | |
1898 | break; | |
1899 | default: | |
84f44ce7 | 1900 | DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane)); |
81255565 JB |
1901 | return -EINVAL; |
1902 | } | |
1903 | ||
1904 | intel_fb = to_intel_framebuffer(fb); | |
1905 | obj = intel_fb->obj; | |
81255565 | 1906 | |
5eddb70b CW |
1907 | reg = DSPCNTR(plane); |
1908 | dspcntr = I915_READ(reg); | |
81255565 JB |
1909 | /* Mask out pixel format bits in case we change it */ |
1910 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
57779d06 VS |
1911 | switch (fb->pixel_format) { |
1912 | case DRM_FORMAT_C8: | |
81255565 JB |
1913 | dspcntr |= DISPPLANE_8BPP; |
1914 | break; | |
57779d06 VS |
1915 | case DRM_FORMAT_XRGB1555: |
1916 | case DRM_FORMAT_ARGB1555: | |
1917 | dspcntr |= DISPPLANE_BGRX555; | |
81255565 | 1918 | break; |
57779d06 VS |
1919 | case DRM_FORMAT_RGB565: |
1920 | dspcntr |= DISPPLANE_BGRX565; | |
1921 | break; | |
1922 | case DRM_FORMAT_XRGB8888: | |
1923 | case DRM_FORMAT_ARGB8888: | |
1924 | dspcntr |= DISPPLANE_BGRX888; | |
1925 | break; | |
1926 | case DRM_FORMAT_XBGR8888: | |
1927 | case DRM_FORMAT_ABGR8888: | |
1928 | dspcntr |= DISPPLANE_RGBX888; | |
1929 | break; | |
1930 | case DRM_FORMAT_XRGB2101010: | |
1931 | case DRM_FORMAT_ARGB2101010: | |
1932 | dspcntr |= DISPPLANE_BGRX101010; | |
1933 | break; | |
1934 | case DRM_FORMAT_XBGR2101010: | |
1935 | case DRM_FORMAT_ABGR2101010: | |
1936 | dspcntr |= DISPPLANE_RGBX101010; | |
81255565 JB |
1937 | break; |
1938 | default: | |
baba133a | 1939 | BUG(); |
81255565 | 1940 | } |
57779d06 | 1941 | |
a6c45cf0 | 1942 | if (INTEL_INFO(dev)->gen >= 4) { |
05394f39 | 1943 | if (obj->tiling_mode != I915_TILING_NONE) |
81255565 JB |
1944 | dspcntr |= DISPPLANE_TILED; |
1945 | else | |
1946 | dspcntr &= ~DISPPLANE_TILED; | |
1947 | } | |
1948 | ||
5eddb70b | 1949 | I915_WRITE(reg, dspcntr); |
81255565 | 1950 | |
e506a0c6 | 1951 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
81255565 | 1952 | |
c2c75131 DV |
1953 | if (INTEL_INFO(dev)->gen >= 4) { |
1954 | intel_crtc->dspaddr_offset = | |
bc752862 CW |
1955 | intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode, |
1956 | fb->bits_per_pixel / 8, | |
1957 | fb->pitches[0]); | |
c2c75131 DV |
1958 | linear_offset -= intel_crtc->dspaddr_offset; |
1959 | } else { | |
e506a0c6 | 1960 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 1961 | } |
e506a0c6 DV |
1962 | |
1963 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", | |
1964 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 1965 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 1966 | if (INTEL_INFO(dev)->gen >= 4) { |
c2c75131 DV |
1967 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
1968 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
5eddb70b | 1969 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 1970 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 1971 | } else |
e506a0c6 | 1972 | I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset); |
5eddb70b | 1973 | POSTING_READ(reg); |
81255565 | 1974 | |
17638cd6 JB |
1975 | return 0; |
1976 | } | |
1977 | ||
1978 | static int ironlake_update_plane(struct drm_crtc *crtc, | |
1979 | struct drm_framebuffer *fb, int x, int y) | |
1980 | { | |
1981 | struct drm_device *dev = crtc->dev; | |
1982 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1983 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1984 | struct intel_framebuffer *intel_fb; | |
1985 | struct drm_i915_gem_object *obj; | |
1986 | int plane = intel_crtc->plane; | |
e506a0c6 | 1987 | unsigned long linear_offset; |
17638cd6 JB |
1988 | u32 dspcntr; |
1989 | u32 reg; | |
1990 | ||
1991 | switch (plane) { | |
1992 | case 0: | |
1993 | case 1: | |
27f8227b | 1994 | case 2: |
17638cd6 JB |
1995 | break; |
1996 | default: | |
84f44ce7 | 1997 | DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane)); |
17638cd6 JB |
1998 | return -EINVAL; |
1999 | } | |
2000 | ||
2001 | intel_fb = to_intel_framebuffer(fb); | |
2002 | obj = intel_fb->obj; | |
2003 | ||
2004 | reg = DSPCNTR(plane); | |
2005 | dspcntr = I915_READ(reg); | |
2006 | /* Mask out pixel format bits in case we change it */ | |
2007 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
57779d06 VS |
2008 | switch (fb->pixel_format) { |
2009 | case DRM_FORMAT_C8: | |
17638cd6 JB |
2010 | dspcntr |= DISPPLANE_8BPP; |
2011 | break; | |
57779d06 VS |
2012 | case DRM_FORMAT_RGB565: |
2013 | dspcntr |= DISPPLANE_BGRX565; | |
17638cd6 | 2014 | break; |
57779d06 VS |
2015 | case DRM_FORMAT_XRGB8888: |
2016 | case DRM_FORMAT_ARGB8888: | |
2017 | dspcntr |= DISPPLANE_BGRX888; | |
2018 | break; | |
2019 | case DRM_FORMAT_XBGR8888: | |
2020 | case DRM_FORMAT_ABGR8888: | |
2021 | dspcntr |= DISPPLANE_RGBX888; | |
2022 | break; | |
2023 | case DRM_FORMAT_XRGB2101010: | |
2024 | case DRM_FORMAT_ARGB2101010: | |
2025 | dspcntr |= DISPPLANE_BGRX101010; | |
2026 | break; | |
2027 | case DRM_FORMAT_XBGR2101010: | |
2028 | case DRM_FORMAT_ABGR2101010: | |
2029 | dspcntr |= DISPPLANE_RGBX101010; | |
17638cd6 JB |
2030 | break; |
2031 | default: | |
baba133a | 2032 | BUG(); |
17638cd6 JB |
2033 | } |
2034 | ||
2035 | if (obj->tiling_mode != I915_TILING_NONE) | |
2036 | dspcntr |= DISPPLANE_TILED; | |
2037 | else | |
2038 | dspcntr &= ~DISPPLANE_TILED; | |
2039 | ||
2040 | /* must disable */ | |
2041 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2042 | ||
2043 | I915_WRITE(reg, dspcntr); | |
2044 | ||
e506a0c6 | 2045 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
c2c75131 | 2046 | intel_crtc->dspaddr_offset = |
bc752862 CW |
2047 | intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode, |
2048 | fb->bits_per_pixel / 8, | |
2049 | fb->pitches[0]); | |
c2c75131 | 2050 | linear_offset -= intel_crtc->dspaddr_offset; |
17638cd6 | 2051 | |
e506a0c6 DV |
2052 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", |
2053 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2054 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
c2c75131 DV |
2055 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2056 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
bc1c91eb DL |
2057 | if (IS_HASWELL(dev)) { |
2058 | I915_WRITE(DSPOFFSET(plane), (y << 16) | x); | |
2059 | } else { | |
2060 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); | |
2061 | I915_WRITE(DSPLINOFF(plane), linear_offset); | |
2062 | } | |
17638cd6 JB |
2063 | POSTING_READ(reg); |
2064 | ||
2065 | return 0; | |
2066 | } | |
2067 | ||
2068 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ | |
2069 | static int | |
2070 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
2071 | int x, int y, enum mode_set_atomic state) | |
2072 | { | |
2073 | struct drm_device *dev = crtc->dev; | |
2074 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 2075 | |
6b8e6ed0 CW |
2076 | if (dev_priv->display.disable_fbc) |
2077 | dev_priv->display.disable_fbc(dev); | |
3dec0095 | 2078 | intel_increase_pllclock(crtc); |
81255565 | 2079 | |
6b8e6ed0 | 2080 | return dev_priv->display.update_plane(crtc, fb, x, y); |
81255565 JB |
2081 | } |
2082 | ||
96a02917 VS |
2083 | void intel_display_handle_reset(struct drm_device *dev) |
2084 | { | |
2085 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2086 | struct drm_crtc *crtc; | |
2087 | ||
2088 | /* | |
2089 | * Flips in the rings have been nuked by the reset, | |
2090 | * so complete all pending flips so that user space | |
2091 | * will get its events and not get stuck. | |
2092 | * | |
2093 | * Also update the base address of all primary | |
2094 | * planes to the the last fb to make sure we're | |
2095 | * showing the correct fb after a reset. | |
2096 | * | |
2097 | * Need to make two loops over the crtcs so that we | |
2098 | * don't try to grab a crtc mutex before the | |
2099 | * pending_flip_queue really got woken up. | |
2100 | */ | |
2101 | ||
2102 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
2103 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2104 | enum plane plane = intel_crtc->plane; | |
2105 | ||
2106 | intel_prepare_page_flip(dev, plane); | |
2107 | intel_finish_page_flip_plane(dev, plane); | |
2108 | } | |
2109 | ||
2110 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
2111 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2112 | ||
2113 | mutex_lock(&crtc->mutex); | |
2114 | if (intel_crtc->active) | |
2115 | dev_priv->display.update_plane(crtc, crtc->fb, | |
2116 | crtc->x, crtc->y); | |
2117 | mutex_unlock(&crtc->mutex); | |
2118 | } | |
2119 | } | |
2120 | ||
14667a4b CW |
2121 | static int |
2122 | intel_finish_fb(struct drm_framebuffer *old_fb) | |
2123 | { | |
2124 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; | |
2125 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; | |
2126 | bool was_interruptible = dev_priv->mm.interruptible; | |
2127 | int ret; | |
2128 | ||
14667a4b CW |
2129 | /* Big Hammer, we also need to ensure that any pending |
2130 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
2131 | * current scanout is retired before unpinning the old | |
2132 | * framebuffer. | |
2133 | * | |
2134 | * This should only fail upon a hung GPU, in which case we | |
2135 | * can safely continue. | |
2136 | */ | |
2137 | dev_priv->mm.interruptible = false; | |
2138 | ret = i915_gem_object_finish_gpu(obj); | |
2139 | dev_priv->mm.interruptible = was_interruptible; | |
2140 | ||
2141 | return ret; | |
2142 | } | |
2143 | ||
198598d0 VS |
2144 | static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y) |
2145 | { | |
2146 | struct drm_device *dev = crtc->dev; | |
2147 | struct drm_i915_master_private *master_priv; | |
2148 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2149 | ||
2150 | if (!dev->primary->master) | |
2151 | return; | |
2152 | ||
2153 | master_priv = dev->primary->master->driver_priv; | |
2154 | if (!master_priv->sarea_priv) | |
2155 | return; | |
2156 | ||
2157 | switch (intel_crtc->pipe) { | |
2158 | case 0: | |
2159 | master_priv->sarea_priv->pipeA_x = x; | |
2160 | master_priv->sarea_priv->pipeA_y = y; | |
2161 | break; | |
2162 | case 1: | |
2163 | master_priv->sarea_priv->pipeB_x = x; | |
2164 | master_priv->sarea_priv->pipeB_y = y; | |
2165 | break; | |
2166 | default: | |
2167 | break; | |
2168 | } | |
2169 | } | |
2170 | ||
5c3b82e2 | 2171 | static int |
3c4fdcfb | 2172 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
94352cf9 | 2173 | struct drm_framebuffer *fb) |
79e53945 JB |
2174 | { |
2175 | struct drm_device *dev = crtc->dev; | |
6b8e6ed0 | 2176 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 2177 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
94352cf9 | 2178 | struct drm_framebuffer *old_fb; |
5c3b82e2 | 2179 | int ret; |
79e53945 JB |
2180 | |
2181 | /* no fb bound */ | |
94352cf9 | 2182 | if (!fb) { |
a5071c2f | 2183 | DRM_ERROR("No FB bound\n"); |
5c3b82e2 CW |
2184 | return 0; |
2185 | } | |
2186 | ||
7eb552ae | 2187 | if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) { |
84f44ce7 VS |
2188 | DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n", |
2189 | plane_name(intel_crtc->plane), | |
2190 | INTEL_INFO(dev)->num_pipes); | |
5c3b82e2 | 2191 | return -EINVAL; |
79e53945 JB |
2192 | } |
2193 | ||
5c3b82e2 | 2194 | mutex_lock(&dev->struct_mutex); |
265db958 | 2195 | ret = intel_pin_and_fence_fb_obj(dev, |
94352cf9 | 2196 | to_intel_framebuffer(fb)->obj, |
919926ae | 2197 | NULL); |
5c3b82e2 CW |
2198 | if (ret != 0) { |
2199 | mutex_unlock(&dev->struct_mutex); | |
a5071c2f | 2200 | DRM_ERROR("pin & fence failed\n"); |
5c3b82e2 CW |
2201 | return ret; |
2202 | } | |
79e53945 | 2203 | |
94352cf9 | 2204 | ret = dev_priv->display.update_plane(crtc, fb, x, y); |
4e6cfefc | 2205 | if (ret) { |
94352cf9 | 2206 | intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj); |
5c3b82e2 | 2207 | mutex_unlock(&dev->struct_mutex); |
a5071c2f | 2208 | DRM_ERROR("failed to update base address\n"); |
4e6cfefc | 2209 | return ret; |
79e53945 | 2210 | } |
3c4fdcfb | 2211 | |
94352cf9 DV |
2212 | old_fb = crtc->fb; |
2213 | crtc->fb = fb; | |
6c4c86f5 DV |
2214 | crtc->x = x; |
2215 | crtc->y = y; | |
94352cf9 | 2216 | |
b7f1de28 | 2217 | if (old_fb) { |
d7697eea DV |
2218 | if (intel_crtc->active && old_fb != fb) |
2219 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
1690e1eb | 2220 | intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj); |
b7f1de28 | 2221 | } |
652c393a | 2222 | |
6b8e6ed0 | 2223 | intel_update_fbc(dev); |
5c3b82e2 | 2224 | mutex_unlock(&dev->struct_mutex); |
79e53945 | 2225 | |
198598d0 | 2226 | intel_crtc_update_sarea_pos(crtc, x, y); |
5c3b82e2 CW |
2227 | |
2228 | return 0; | |
79e53945 JB |
2229 | } |
2230 | ||
5e84e1a4 ZW |
2231 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
2232 | { | |
2233 | struct drm_device *dev = crtc->dev; | |
2234 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2235 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2236 | int pipe = intel_crtc->pipe; | |
2237 | u32 reg, temp; | |
2238 | ||
2239 | /* enable normal train */ | |
2240 | reg = FDI_TX_CTL(pipe); | |
2241 | temp = I915_READ(reg); | |
61e499bf | 2242 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
2243 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
2244 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
2245 | } else { |
2246 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2247 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 2248 | } |
5e84e1a4 ZW |
2249 | I915_WRITE(reg, temp); |
2250 | ||
2251 | reg = FDI_RX_CTL(pipe); | |
2252 | temp = I915_READ(reg); | |
2253 | if (HAS_PCH_CPT(dev)) { | |
2254 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2255 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2256 | } else { | |
2257 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2258 | temp |= FDI_LINK_TRAIN_NONE; | |
2259 | } | |
2260 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2261 | ||
2262 | /* wait one idle pattern time */ | |
2263 | POSTING_READ(reg); | |
2264 | udelay(1000); | |
357555c0 JB |
2265 | |
2266 | /* IVB wants error correction enabled */ | |
2267 | if (IS_IVYBRIDGE(dev)) | |
2268 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
2269 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
2270 | } |
2271 | ||
1e833f40 DV |
2272 | static bool pipe_has_enabled_pch(struct intel_crtc *intel_crtc) |
2273 | { | |
2274 | return intel_crtc->base.enabled && intel_crtc->config.has_pch_encoder; | |
2275 | } | |
2276 | ||
01a415fd DV |
2277 | static void ivb_modeset_global_resources(struct drm_device *dev) |
2278 | { | |
2279 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2280 | struct intel_crtc *pipe_B_crtc = | |
2281 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]); | |
2282 | struct intel_crtc *pipe_C_crtc = | |
2283 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]); | |
2284 | uint32_t temp; | |
2285 | ||
1e833f40 DV |
2286 | /* |
2287 | * When everything is off disable fdi C so that we could enable fdi B | |
2288 | * with all lanes. Note that we don't care about enabled pipes without | |
2289 | * an enabled pch encoder. | |
2290 | */ | |
2291 | if (!pipe_has_enabled_pch(pipe_B_crtc) && | |
2292 | !pipe_has_enabled_pch(pipe_C_crtc)) { | |
01a415fd DV |
2293 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); |
2294 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
2295 | ||
2296 | temp = I915_READ(SOUTH_CHICKEN1); | |
2297 | temp &= ~FDI_BC_BIFURCATION_SELECT; | |
2298 | DRM_DEBUG_KMS("disabling fdi C rx\n"); | |
2299 | I915_WRITE(SOUTH_CHICKEN1, temp); | |
2300 | } | |
2301 | } | |
2302 | ||
8db9d77b ZW |
2303 | /* The FDI link training functions for ILK/Ibexpeak. */ |
2304 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
2305 | { | |
2306 | struct drm_device *dev = crtc->dev; | |
2307 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2308 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2309 | int pipe = intel_crtc->pipe; | |
0fc932b8 | 2310 | int plane = intel_crtc->plane; |
5eddb70b | 2311 | u32 reg, temp, tries; |
8db9d77b | 2312 | |
0fc932b8 JB |
2313 | /* FDI needs bits from pipe & plane first */ |
2314 | assert_pipe_enabled(dev_priv, pipe); | |
2315 | assert_plane_enabled(dev_priv, plane); | |
2316 | ||
e1a44743 AJ |
2317 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2318 | for train result */ | |
5eddb70b CW |
2319 | reg = FDI_RX_IMR(pipe); |
2320 | temp = I915_READ(reg); | |
e1a44743 AJ |
2321 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2322 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2323 | I915_WRITE(reg, temp); |
2324 | I915_READ(reg); | |
e1a44743 AJ |
2325 | udelay(150); |
2326 | ||
8db9d77b | 2327 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2328 | reg = FDI_TX_CTL(pipe); |
2329 | temp = I915_READ(reg); | |
627eb5a3 DV |
2330 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
2331 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
8db9d77b ZW |
2332 | temp &= ~FDI_LINK_TRAIN_NONE; |
2333 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 2334 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2335 | |
5eddb70b CW |
2336 | reg = FDI_RX_CTL(pipe); |
2337 | temp = I915_READ(reg); | |
8db9d77b ZW |
2338 | temp &= ~FDI_LINK_TRAIN_NONE; |
2339 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
2340 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2341 | ||
2342 | POSTING_READ(reg); | |
8db9d77b ZW |
2343 | udelay(150); |
2344 | ||
5b2adf89 | 2345 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
8f5718a6 DV |
2346 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
2347 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
2348 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
5b2adf89 | 2349 | |
5eddb70b | 2350 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2351 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2352 | temp = I915_READ(reg); |
8db9d77b ZW |
2353 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2354 | ||
2355 | if ((temp & FDI_RX_BIT_LOCK)) { | |
2356 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 2357 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
2358 | break; |
2359 | } | |
8db9d77b | 2360 | } |
e1a44743 | 2361 | if (tries == 5) |
5eddb70b | 2362 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2363 | |
2364 | /* Train 2 */ | |
5eddb70b CW |
2365 | reg = FDI_TX_CTL(pipe); |
2366 | temp = I915_READ(reg); | |
8db9d77b ZW |
2367 | temp &= ~FDI_LINK_TRAIN_NONE; |
2368 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2369 | I915_WRITE(reg, temp); |
8db9d77b | 2370 | |
5eddb70b CW |
2371 | reg = FDI_RX_CTL(pipe); |
2372 | temp = I915_READ(reg); | |
8db9d77b ZW |
2373 | temp &= ~FDI_LINK_TRAIN_NONE; |
2374 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2375 | I915_WRITE(reg, temp); |
8db9d77b | 2376 | |
5eddb70b CW |
2377 | POSTING_READ(reg); |
2378 | udelay(150); | |
8db9d77b | 2379 | |
5eddb70b | 2380 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2381 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2382 | temp = I915_READ(reg); |
8db9d77b ZW |
2383 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2384 | ||
2385 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 2386 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
2387 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
2388 | break; | |
2389 | } | |
8db9d77b | 2390 | } |
e1a44743 | 2391 | if (tries == 5) |
5eddb70b | 2392 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2393 | |
2394 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 2395 | |
8db9d77b ZW |
2396 | } |
2397 | ||
0206e353 | 2398 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
2399 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2400 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
2401 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
2402 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
2403 | }; | |
2404 | ||
2405 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
2406 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
2407 | { | |
2408 | struct drm_device *dev = crtc->dev; | |
2409 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2410 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2411 | int pipe = intel_crtc->pipe; | |
fa37d39e | 2412 | u32 reg, temp, i, retry; |
8db9d77b | 2413 | |
e1a44743 AJ |
2414 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2415 | for train result */ | |
5eddb70b CW |
2416 | reg = FDI_RX_IMR(pipe); |
2417 | temp = I915_READ(reg); | |
e1a44743 AJ |
2418 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2419 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2420 | I915_WRITE(reg, temp); |
2421 | ||
2422 | POSTING_READ(reg); | |
e1a44743 AJ |
2423 | udelay(150); |
2424 | ||
8db9d77b | 2425 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2426 | reg = FDI_TX_CTL(pipe); |
2427 | temp = I915_READ(reg); | |
627eb5a3 DV |
2428 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
2429 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
8db9d77b ZW |
2430 | temp &= ~FDI_LINK_TRAIN_NONE; |
2431 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2432 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2433 | /* SNB-B */ | |
2434 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 2435 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2436 | |
d74cf324 DV |
2437 | I915_WRITE(FDI_RX_MISC(pipe), |
2438 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
2439 | ||
5eddb70b CW |
2440 | reg = FDI_RX_CTL(pipe); |
2441 | temp = I915_READ(reg); | |
8db9d77b ZW |
2442 | if (HAS_PCH_CPT(dev)) { |
2443 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2444 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2445 | } else { | |
2446 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2447 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2448 | } | |
5eddb70b CW |
2449 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2450 | ||
2451 | POSTING_READ(reg); | |
8db9d77b ZW |
2452 | udelay(150); |
2453 | ||
0206e353 | 2454 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2455 | reg = FDI_TX_CTL(pipe); |
2456 | temp = I915_READ(reg); | |
8db9d77b ZW |
2457 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2458 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2459 | I915_WRITE(reg, temp); |
2460 | ||
2461 | POSTING_READ(reg); | |
8db9d77b ZW |
2462 | udelay(500); |
2463 | ||
fa37d39e SP |
2464 | for (retry = 0; retry < 5; retry++) { |
2465 | reg = FDI_RX_IIR(pipe); | |
2466 | temp = I915_READ(reg); | |
2467 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2468 | if (temp & FDI_RX_BIT_LOCK) { | |
2469 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2470 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2471 | break; | |
2472 | } | |
2473 | udelay(50); | |
8db9d77b | 2474 | } |
fa37d39e SP |
2475 | if (retry < 5) |
2476 | break; | |
8db9d77b ZW |
2477 | } |
2478 | if (i == 4) | |
5eddb70b | 2479 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2480 | |
2481 | /* Train 2 */ | |
5eddb70b CW |
2482 | reg = FDI_TX_CTL(pipe); |
2483 | temp = I915_READ(reg); | |
8db9d77b ZW |
2484 | temp &= ~FDI_LINK_TRAIN_NONE; |
2485 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2486 | if (IS_GEN6(dev)) { | |
2487 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2488 | /* SNB-B */ | |
2489 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2490 | } | |
5eddb70b | 2491 | I915_WRITE(reg, temp); |
8db9d77b | 2492 | |
5eddb70b CW |
2493 | reg = FDI_RX_CTL(pipe); |
2494 | temp = I915_READ(reg); | |
8db9d77b ZW |
2495 | if (HAS_PCH_CPT(dev)) { |
2496 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2497 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2498 | } else { | |
2499 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2500 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2501 | } | |
5eddb70b CW |
2502 | I915_WRITE(reg, temp); |
2503 | ||
2504 | POSTING_READ(reg); | |
8db9d77b ZW |
2505 | udelay(150); |
2506 | ||
0206e353 | 2507 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2508 | reg = FDI_TX_CTL(pipe); |
2509 | temp = I915_READ(reg); | |
8db9d77b ZW |
2510 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2511 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2512 | I915_WRITE(reg, temp); |
2513 | ||
2514 | POSTING_READ(reg); | |
8db9d77b ZW |
2515 | udelay(500); |
2516 | ||
fa37d39e SP |
2517 | for (retry = 0; retry < 5; retry++) { |
2518 | reg = FDI_RX_IIR(pipe); | |
2519 | temp = I915_READ(reg); | |
2520 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2521 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2522 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2523 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2524 | break; | |
2525 | } | |
2526 | udelay(50); | |
8db9d77b | 2527 | } |
fa37d39e SP |
2528 | if (retry < 5) |
2529 | break; | |
8db9d77b ZW |
2530 | } |
2531 | if (i == 4) | |
5eddb70b | 2532 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2533 | |
2534 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2535 | } | |
2536 | ||
357555c0 JB |
2537 | /* Manual link training for Ivy Bridge A0 parts */ |
2538 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
2539 | { | |
2540 | struct drm_device *dev = crtc->dev; | |
2541 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2542 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2543 | int pipe = intel_crtc->pipe; | |
2544 | u32 reg, temp, i; | |
2545 | ||
2546 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
2547 | for train result */ | |
2548 | reg = FDI_RX_IMR(pipe); | |
2549 | temp = I915_READ(reg); | |
2550 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
2551 | temp &= ~FDI_RX_BIT_LOCK; | |
2552 | I915_WRITE(reg, temp); | |
2553 | ||
2554 | POSTING_READ(reg); | |
2555 | udelay(150); | |
2556 | ||
01a415fd DV |
2557 | DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n", |
2558 | I915_READ(FDI_RX_IIR(pipe))); | |
2559 | ||
357555c0 JB |
2560 | /* enable CPU FDI TX and PCH FDI RX */ |
2561 | reg = FDI_TX_CTL(pipe); | |
2562 | temp = I915_READ(reg); | |
627eb5a3 DV |
2563 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
2564 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
357555c0 JB |
2565 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); |
2566 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; | |
2567 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2568 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
c4f9c4c2 | 2569 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2570 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
2571 | ||
d74cf324 DV |
2572 | I915_WRITE(FDI_RX_MISC(pipe), |
2573 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
2574 | ||
357555c0 JB |
2575 | reg = FDI_RX_CTL(pipe); |
2576 | temp = I915_READ(reg); | |
2577 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
2578 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2579 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
c4f9c4c2 | 2580 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2581 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2582 | ||
2583 | POSTING_READ(reg); | |
2584 | udelay(150); | |
2585 | ||
0206e353 | 2586 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2587 | reg = FDI_TX_CTL(pipe); |
2588 | temp = I915_READ(reg); | |
2589 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2590 | temp |= snb_b_fdi_train_param[i]; | |
2591 | I915_WRITE(reg, temp); | |
2592 | ||
2593 | POSTING_READ(reg); | |
2594 | udelay(500); | |
2595 | ||
2596 | reg = FDI_RX_IIR(pipe); | |
2597 | temp = I915_READ(reg); | |
2598 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2599 | ||
2600 | if (temp & FDI_RX_BIT_LOCK || | |
2601 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
2602 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
01a415fd | 2603 | DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", i); |
357555c0 JB |
2604 | break; |
2605 | } | |
2606 | } | |
2607 | if (i == 4) | |
2608 | DRM_ERROR("FDI train 1 fail!\n"); | |
2609 | ||
2610 | /* Train 2 */ | |
2611 | reg = FDI_TX_CTL(pipe); | |
2612 | temp = I915_READ(reg); | |
2613 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; | |
2614 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
2615 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2616 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2617 | I915_WRITE(reg, temp); | |
2618 | ||
2619 | reg = FDI_RX_CTL(pipe); | |
2620 | temp = I915_READ(reg); | |
2621 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2622 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2623 | I915_WRITE(reg, temp); | |
2624 | ||
2625 | POSTING_READ(reg); | |
2626 | udelay(150); | |
2627 | ||
0206e353 | 2628 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2629 | reg = FDI_TX_CTL(pipe); |
2630 | temp = I915_READ(reg); | |
2631 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2632 | temp |= snb_b_fdi_train_param[i]; | |
2633 | I915_WRITE(reg, temp); | |
2634 | ||
2635 | POSTING_READ(reg); | |
2636 | udelay(500); | |
2637 | ||
2638 | reg = FDI_RX_IIR(pipe); | |
2639 | temp = I915_READ(reg); | |
2640 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2641 | ||
2642 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2643 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
01a415fd | 2644 | DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", i); |
357555c0 JB |
2645 | break; |
2646 | } | |
2647 | } | |
2648 | if (i == 4) | |
2649 | DRM_ERROR("FDI train 2 fail!\n"); | |
2650 | ||
2651 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2652 | } | |
2653 | ||
88cefb6c | 2654 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 2655 | { |
88cefb6c | 2656 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 2657 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 2658 | int pipe = intel_crtc->pipe; |
5eddb70b | 2659 | u32 reg, temp; |
79e53945 | 2660 | |
c64e311e | 2661 | |
c98e9dcf | 2662 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
2663 | reg = FDI_RX_CTL(pipe); |
2664 | temp = I915_READ(reg); | |
627eb5a3 DV |
2665 | temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16)); |
2666 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
dfd07d72 | 2667 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
5eddb70b CW |
2668 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); |
2669 | ||
2670 | POSTING_READ(reg); | |
c98e9dcf JB |
2671 | udelay(200); |
2672 | ||
2673 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
2674 | temp = I915_READ(reg); |
2675 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
2676 | ||
2677 | POSTING_READ(reg); | |
c98e9dcf JB |
2678 | udelay(200); |
2679 | ||
20749730 PZ |
2680 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
2681 | reg = FDI_TX_CTL(pipe); | |
2682 | temp = I915_READ(reg); | |
2683 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
2684 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 2685 | |
20749730 PZ |
2686 | POSTING_READ(reg); |
2687 | udelay(100); | |
6be4a607 | 2688 | } |
0e23b99d JB |
2689 | } |
2690 | ||
88cefb6c DV |
2691 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
2692 | { | |
2693 | struct drm_device *dev = intel_crtc->base.dev; | |
2694 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2695 | int pipe = intel_crtc->pipe; | |
2696 | u32 reg, temp; | |
2697 | ||
2698 | /* Switch from PCDclk to Rawclk */ | |
2699 | reg = FDI_RX_CTL(pipe); | |
2700 | temp = I915_READ(reg); | |
2701 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
2702 | ||
2703 | /* Disable CPU FDI TX PLL */ | |
2704 | reg = FDI_TX_CTL(pipe); | |
2705 | temp = I915_READ(reg); | |
2706 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
2707 | ||
2708 | POSTING_READ(reg); | |
2709 | udelay(100); | |
2710 | ||
2711 | reg = FDI_RX_CTL(pipe); | |
2712 | temp = I915_READ(reg); | |
2713 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
2714 | ||
2715 | /* Wait for the clocks to turn off. */ | |
2716 | POSTING_READ(reg); | |
2717 | udelay(100); | |
2718 | } | |
2719 | ||
0fc932b8 JB |
2720 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
2721 | { | |
2722 | struct drm_device *dev = crtc->dev; | |
2723 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2724 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2725 | int pipe = intel_crtc->pipe; | |
2726 | u32 reg, temp; | |
2727 | ||
2728 | /* disable CPU FDI tx and PCH FDI rx */ | |
2729 | reg = FDI_TX_CTL(pipe); | |
2730 | temp = I915_READ(reg); | |
2731 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
2732 | POSTING_READ(reg); | |
2733 | ||
2734 | reg = FDI_RX_CTL(pipe); | |
2735 | temp = I915_READ(reg); | |
2736 | temp &= ~(0x7 << 16); | |
dfd07d72 | 2737 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
2738 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); |
2739 | ||
2740 | POSTING_READ(reg); | |
2741 | udelay(100); | |
2742 | ||
2743 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
6f06ce18 JB |
2744 | if (HAS_PCH_IBX(dev)) { |
2745 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
6f06ce18 | 2746 | } |
0fc932b8 JB |
2747 | |
2748 | /* still set train pattern 1 */ | |
2749 | reg = FDI_TX_CTL(pipe); | |
2750 | temp = I915_READ(reg); | |
2751 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2752 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2753 | I915_WRITE(reg, temp); | |
2754 | ||
2755 | reg = FDI_RX_CTL(pipe); | |
2756 | temp = I915_READ(reg); | |
2757 | if (HAS_PCH_CPT(dev)) { | |
2758 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2759 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2760 | } else { | |
2761 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2762 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2763 | } | |
2764 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
2765 | temp &= ~(0x07 << 16); | |
dfd07d72 | 2766 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
2767 | I915_WRITE(reg, temp); |
2768 | ||
2769 | POSTING_READ(reg); | |
2770 | udelay(100); | |
2771 | } | |
2772 | ||
5bb61643 CW |
2773 | static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc) |
2774 | { | |
2775 | struct drm_device *dev = crtc->dev; | |
2776 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10d83730 | 2777 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5bb61643 CW |
2778 | unsigned long flags; |
2779 | bool pending; | |
2780 | ||
10d83730 VS |
2781 | if (i915_reset_in_progress(&dev_priv->gpu_error) || |
2782 | intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) | |
5bb61643 CW |
2783 | return false; |
2784 | ||
2785 | spin_lock_irqsave(&dev->event_lock, flags); | |
2786 | pending = to_intel_crtc(crtc)->unpin_work != NULL; | |
2787 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
2788 | ||
2789 | return pending; | |
2790 | } | |
2791 | ||
e6c3a2a6 CW |
2792 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
2793 | { | |
0f91128d | 2794 | struct drm_device *dev = crtc->dev; |
5bb61643 | 2795 | struct drm_i915_private *dev_priv = dev->dev_private; |
e6c3a2a6 CW |
2796 | |
2797 | if (crtc->fb == NULL) | |
2798 | return; | |
2799 | ||
2c10d571 DV |
2800 | WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue)); |
2801 | ||
5bb61643 CW |
2802 | wait_event(dev_priv->pending_flip_queue, |
2803 | !intel_crtc_has_pending_flip(crtc)); | |
2804 | ||
0f91128d CW |
2805 | mutex_lock(&dev->struct_mutex); |
2806 | intel_finish_fb(crtc->fb); | |
2807 | mutex_unlock(&dev->struct_mutex); | |
e6c3a2a6 CW |
2808 | } |
2809 | ||
e615efe4 ED |
2810 | /* Program iCLKIP clock to the desired frequency */ |
2811 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
2812 | { | |
2813 | struct drm_device *dev = crtc->dev; | |
2814 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2815 | u32 divsel, phaseinc, auxdiv, phasedir = 0; | |
2816 | u32 temp; | |
2817 | ||
09153000 DV |
2818 | mutex_lock(&dev_priv->dpio_lock); |
2819 | ||
e615efe4 ED |
2820 | /* It is necessary to ungate the pixclk gate prior to programming |
2821 | * the divisors, and gate it back when it is done. | |
2822 | */ | |
2823 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
2824 | ||
2825 | /* Disable SSCCTL */ | |
2826 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
988d6ee8 PZ |
2827 | intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) | |
2828 | SBI_SSCCTL_DISABLE, | |
2829 | SBI_ICLK); | |
e615efe4 ED |
2830 | |
2831 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
2832 | if (crtc->mode.clock == 20000) { | |
2833 | auxdiv = 1; | |
2834 | divsel = 0x41; | |
2835 | phaseinc = 0x20; | |
2836 | } else { | |
2837 | /* The iCLK virtual clock root frequency is in MHz, | |
2838 | * but the crtc->mode.clock in in KHz. To get the divisors, | |
2839 | * it is necessary to divide one by another, so we | |
2840 | * convert the virtual clock precision to KHz here for higher | |
2841 | * precision. | |
2842 | */ | |
2843 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
2844 | u32 iclk_pi_range = 64; | |
2845 | u32 desired_divisor, msb_divisor_value, pi_value; | |
2846 | ||
2847 | desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock); | |
2848 | msb_divisor_value = desired_divisor / iclk_pi_range; | |
2849 | pi_value = desired_divisor % iclk_pi_range; | |
2850 | ||
2851 | auxdiv = 0; | |
2852 | divsel = msb_divisor_value - 2; | |
2853 | phaseinc = pi_value; | |
2854 | } | |
2855 | ||
2856 | /* This should not happen with any sane values */ | |
2857 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
2858 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
2859 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
2860 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
2861 | ||
2862 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
2863 | crtc->mode.clock, | |
2864 | auxdiv, | |
2865 | divsel, | |
2866 | phasedir, | |
2867 | phaseinc); | |
2868 | ||
2869 | /* Program SSCDIVINTPHASE6 */ | |
988d6ee8 | 2870 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK); |
e615efe4 ED |
2871 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; |
2872 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
2873 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
2874 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
2875 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
2876 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
988d6ee8 | 2877 | intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK); |
e615efe4 ED |
2878 | |
2879 | /* Program SSCAUXDIV */ | |
988d6ee8 | 2880 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK); |
e615efe4 ED |
2881 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); |
2882 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
988d6ee8 | 2883 | intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK); |
e615efe4 ED |
2884 | |
2885 | /* Enable modulator and associated divider */ | |
988d6ee8 | 2886 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK); |
e615efe4 | 2887 | temp &= ~SBI_SSCCTL_DISABLE; |
988d6ee8 | 2888 | intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK); |
e615efe4 ED |
2889 | |
2890 | /* Wait for initialization time */ | |
2891 | udelay(24); | |
2892 | ||
2893 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
09153000 DV |
2894 | |
2895 | mutex_unlock(&dev_priv->dpio_lock); | |
e615efe4 ED |
2896 | } |
2897 | ||
275f01b2 DV |
2898 | static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc, |
2899 | enum pipe pch_transcoder) | |
2900 | { | |
2901 | struct drm_device *dev = crtc->base.dev; | |
2902 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2903 | enum transcoder cpu_transcoder = crtc->config.cpu_transcoder; | |
2904 | ||
2905 | I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder), | |
2906 | I915_READ(HTOTAL(cpu_transcoder))); | |
2907 | I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder), | |
2908 | I915_READ(HBLANK(cpu_transcoder))); | |
2909 | I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder), | |
2910 | I915_READ(HSYNC(cpu_transcoder))); | |
2911 | ||
2912 | I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder), | |
2913 | I915_READ(VTOTAL(cpu_transcoder))); | |
2914 | I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder), | |
2915 | I915_READ(VBLANK(cpu_transcoder))); | |
2916 | I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder), | |
2917 | I915_READ(VSYNC(cpu_transcoder))); | |
2918 | I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder), | |
2919 | I915_READ(VSYNCSHIFT(cpu_transcoder))); | |
2920 | } | |
2921 | ||
f67a559d JB |
2922 | /* |
2923 | * Enable PCH resources required for PCH ports: | |
2924 | * - PCH PLLs | |
2925 | * - FDI training & RX/TX | |
2926 | * - update transcoder timings | |
2927 | * - DP transcoding bits | |
2928 | * - transcoder | |
2929 | */ | |
2930 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
2931 | { |
2932 | struct drm_device *dev = crtc->dev; | |
2933 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2934 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2935 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 2936 | u32 reg, temp; |
2c07245f | 2937 | |
ab9412ba | 2938 | assert_pch_transcoder_disabled(dev_priv, pipe); |
e7e164db | 2939 | |
cd986abb DV |
2940 | /* Write the TU size bits before fdi link training, so that error |
2941 | * detection works. */ | |
2942 | I915_WRITE(FDI_RX_TUSIZE1(pipe), | |
2943 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
2944 | ||
c98e9dcf | 2945 | /* For PCH output, training FDI link */ |
674cf967 | 2946 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 2947 | |
572deb37 DV |
2948 | /* XXX: pch pll's can be enabled any time before we enable the PCH |
2949 | * transcoder, and we actually should do this to not upset any PCH | |
2950 | * transcoder that already use the clock when we share it. | |
2951 | * | |
2952 | * Note that enable_pch_pll tries to do the right thing, but get_pch_pll | |
2953 | * unconditionally resets the pll - we need that to have the right LVDS | |
2954 | * enable sequence. */ | |
b6b4e185 | 2955 | ironlake_enable_pch_pll(intel_crtc); |
6f13b7b5 | 2956 | |
303b81e0 | 2957 | if (HAS_PCH_CPT(dev)) { |
ee7b9f93 | 2958 | u32 sel; |
4b645f14 | 2959 | |
c98e9dcf | 2960 | temp = I915_READ(PCH_DPLL_SEL); |
ee7b9f93 JB |
2961 | switch (pipe) { |
2962 | default: | |
2963 | case 0: | |
2964 | temp |= TRANSA_DPLL_ENABLE; | |
2965 | sel = TRANSA_DPLLB_SEL; | |
2966 | break; | |
2967 | case 1: | |
2968 | temp |= TRANSB_DPLL_ENABLE; | |
2969 | sel = TRANSB_DPLLB_SEL; | |
2970 | break; | |
2971 | case 2: | |
2972 | temp |= TRANSC_DPLL_ENABLE; | |
2973 | sel = TRANSC_DPLLB_SEL; | |
2974 | break; | |
d64311ab | 2975 | } |
ee7b9f93 JB |
2976 | if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B) |
2977 | temp |= sel; | |
2978 | else | |
2979 | temp &= ~sel; | |
c98e9dcf | 2980 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 2981 | } |
5eddb70b | 2982 | |
d9b6cb56 JB |
2983 | /* set transcoder timing, panel must allow it */ |
2984 | assert_panel_unlocked(dev_priv, pipe); | |
275f01b2 | 2985 | ironlake_pch_transcoder_set_timings(intel_crtc, pipe); |
8db9d77b | 2986 | |
303b81e0 | 2987 | intel_fdi_normal_train(crtc); |
5e84e1a4 | 2988 | |
c98e9dcf JB |
2989 | /* For PCH DP, enable TRANS_DP_CTL */ |
2990 | if (HAS_PCH_CPT(dev) && | |
417e822d KP |
2991 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
2992 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
dfd07d72 | 2993 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5; |
5eddb70b CW |
2994 | reg = TRANS_DP_CTL(pipe); |
2995 | temp = I915_READ(reg); | |
2996 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
2997 | TRANS_DP_SYNC_MASK | |
2998 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
2999 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
3000 | TRANS_DP_ENH_FRAMING); | |
9325c9f0 | 3001 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
3002 | |
3003 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 3004 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 3005 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 3006 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
3007 | |
3008 | switch (intel_trans_dp_port_sel(crtc)) { | |
3009 | case PCH_DP_B: | |
5eddb70b | 3010 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
3011 | break; |
3012 | case PCH_DP_C: | |
5eddb70b | 3013 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
3014 | break; |
3015 | case PCH_DP_D: | |
5eddb70b | 3016 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
3017 | break; |
3018 | default: | |
e95d41e1 | 3019 | BUG(); |
32f9d658 | 3020 | } |
2c07245f | 3021 | |
5eddb70b | 3022 | I915_WRITE(reg, temp); |
6be4a607 | 3023 | } |
b52eb4dc | 3024 | |
b8a4f404 | 3025 | ironlake_enable_pch_transcoder(dev_priv, pipe); |
f67a559d JB |
3026 | } |
3027 | ||
1507e5bd PZ |
3028 | static void lpt_pch_enable(struct drm_crtc *crtc) |
3029 | { | |
3030 | struct drm_device *dev = crtc->dev; | |
3031 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3032 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3b117c8f | 3033 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
1507e5bd | 3034 | |
ab9412ba | 3035 | assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A); |
1507e5bd | 3036 | |
8c52b5e8 | 3037 | lpt_program_iclkip(crtc); |
1507e5bd | 3038 | |
0540e488 | 3039 | /* Set transcoder timing. */ |
275f01b2 | 3040 | ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A); |
1507e5bd | 3041 | |
937bb610 | 3042 | lpt_enable_pch_transcoder(dev_priv, cpu_transcoder); |
f67a559d JB |
3043 | } |
3044 | ||
ee7b9f93 JB |
3045 | static void intel_put_pch_pll(struct intel_crtc *intel_crtc) |
3046 | { | |
3047 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
3048 | ||
3049 | if (pll == NULL) | |
3050 | return; | |
3051 | ||
3052 | if (pll->refcount == 0) { | |
3053 | WARN(1, "bad PCH PLL refcount\n"); | |
3054 | return; | |
3055 | } | |
3056 | ||
3057 | --pll->refcount; | |
3058 | intel_crtc->pch_pll = NULL; | |
3059 | } | |
3060 | ||
3061 | static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp) | |
3062 | { | |
3063 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; | |
3064 | struct intel_pch_pll *pll; | |
3065 | int i; | |
3066 | ||
3067 | pll = intel_crtc->pch_pll; | |
3068 | if (pll) { | |
3069 | DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n", | |
3070 | intel_crtc->base.base.id, pll->pll_reg); | |
3071 | goto prepare; | |
3072 | } | |
3073 | ||
98b6bd99 DV |
3074 | if (HAS_PCH_IBX(dev_priv->dev)) { |
3075 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
3076 | i = intel_crtc->pipe; | |
3077 | pll = &dev_priv->pch_plls[i]; | |
3078 | ||
3079 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n", | |
3080 | intel_crtc->base.base.id, pll->pll_reg); | |
3081 | ||
3082 | goto found; | |
3083 | } | |
3084 | ||
ee7b9f93 JB |
3085 | for (i = 0; i < dev_priv->num_pch_pll; i++) { |
3086 | pll = &dev_priv->pch_plls[i]; | |
3087 | ||
3088 | /* Only want to check enabled timings first */ | |
3089 | if (pll->refcount == 0) | |
3090 | continue; | |
3091 | ||
3092 | if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) && | |
3093 | fp == I915_READ(pll->fp0_reg)) { | |
3094 | DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n", | |
3095 | intel_crtc->base.base.id, | |
3096 | pll->pll_reg, pll->refcount, pll->active); | |
3097 | ||
3098 | goto found; | |
3099 | } | |
3100 | } | |
3101 | ||
3102 | /* Ok no matching timings, maybe there's a free one? */ | |
3103 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
3104 | pll = &dev_priv->pch_plls[i]; | |
3105 | if (pll->refcount == 0) { | |
3106 | DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n", | |
3107 | intel_crtc->base.base.id, pll->pll_reg); | |
3108 | goto found; | |
3109 | } | |
3110 | } | |
3111 | ||
3112 | return NULL; | |
3113 | ||
3114 | found: | |
3115 | intel_crtc->pch_pll = pll; | |
3116 | pll->refcount++; | |
84f44ce7 | 3117 | DRM_DEBUG_DRIVER("using pll %d for pipe %c\n", i, pipe_name(intel_crtc->pipe)); |
ee7b9f93 JB |
3118 | prepare: /* separate function? */ |
3119 | DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg); | |
ee7b9f93 | 3120 | |
e04c7350 CW |
3121 | /* Wait for the clocks to stabilize before rewriting the regs */ |
3122 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3123 | POSTING_READ(pll->pll_reg); |
3124 | udelay(150); | |
e04c7350 CW |
3125 | |
3126 | I915_WRITE(pll->fp0_reg, fp); | |
3127 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3128 | pll->on = false; |
3129 | return pll; | |
3130 | } | |
3131 | ||
a1520318 | 3132 | static void cpt_verify_modeset(struct drm_device *dev, int pipe) |
d4270e57 JB |
3133 | { |
3134 | struct drm_i915_private *dev_priv = dev->dev_private; | |
23670b32 | 3135 | int dslreg = PIPEDSL(pipe); |
d4270e57 JB |
3136 | u32 temp; |
3137 | ||
3138 | temp = I915_READ(dslreg); | |
3139 | udelay(500); | |
3140 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
d4270e57 | 3141 | if (wait_for(I915_READ(dslreg) != temp, 5)) |
84f44ce7 | 3142 | DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe)); |
d4270e57 JB |
3143 | } |
3144 | } | |
3145 | ||
b074cec8 JB |
3146 | static void ironlake_pfit_enable(struct intel_crtc *crtc) |
3147 | { | |
3148 | struct drm_device *dev = crtc->base.dev; | |
3149 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3150 | int pipe = crtc->pipe; | |
3151 | ||
0ef37f3f | 3152 | if (crtc->config.pch_pfit.size) { |
b074cec8 JB |
3153 | /* Force use of hard-coded filter coefficients |
3154 | * as some pre-programmed values are broken, | |
3155 | * e.g. x201. | |
3156 | */ | |
3157 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) | |
3158 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 | | |
3159 | PF_PIPE_SEL_IVB(pipe)); | |
3160 | else | |
3161 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); | |
3162 | I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos); | |
3163 | I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size); | |
3164 | } | |
3165 | } | |
3166 | ||
bb53d4ae VS |
3167 | static void intel_enable_planes(struct drm_crtc *crtc) |
3168 | { | |
3169 | struct drm_device *dev = crtc->dev; | |
3170 | enum pipe pipe = to_intel_crtc(crtc)->pipe; | |
3171 | struct intel_plane *intel_plane; | |
3172 | ||
3173 | list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head) | |
3174 | if (intel_plane->pipe == pipe) | |
3175 | intel_plane_restore(&intel_plane->base); | |
3176 | } | |
3177 | ||
3178 | static void intel_disable_planes(struct drm_crtc *crtc) | |
3179 | { | |
3180 | struct drm_device *dev = crtc->dev; | |
3181 | enum pipe pipe = to_intel_crtc(crtc)->pipe; | |
3182 | struct intel_plane *intel_plane; | |
3183 | ||
3184 | list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head) | |
3185 | if (intel_plane->pipe == pipe) | |
3186 | intel_plane_disable(&intel_plane->base); | |
3187 | } | |
3188 | ||
f67a559d JB |
3189 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
3190 | { | |
3191 | struct drm_device *dev = crtc->dev; | |
3192 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3193 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3194 | struct intel_encoder *encoder; |
f67a559d JB |
3195 | int pipe = intel_crtc->pipe; |
3196 | int plane = intel_crtc->plane; | |
3197 | u32 temp; | |
f67a559d | 3198 | |
08a48469 DV |
3199 | WARN_ON(!crtc->enabled); |
3200 | ||
f67a559d JB |
3201 | if (intel_crtc->active) |
3202 | return; | |
3203 | ||
3204 | intel_crtc->active = true; | |
8664281b PZ |
3205 | |
3206 | intel_set_cpu_fifo_underrun_reporting(dev, pipe, true); | |
3207 | intel_set_pch_fifo_underrun_reporting(dev, pipe, true); | |
3208 | ||
f67a559d JB |
3209 | intel_update_watermarks(dev); |
3210 | ||
3211 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3212 | temp = I915_READ(PCH_LVDS); | |
3213 | if ((temp & LVDS_PORT_EN) == 0) | |
3214 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); | |
3215 | } | |
3216 | ||
f67a559d | 3217 | |
5bfe2ac0 | 3218 | if (intel_crtc->config.has_pch_encoder) { |
fff367c7 DV |
3219 | /* Note: FDI PLL enabling _must_ be done before we enable the |
3220 | * cpu pipes, hence this is separate from all the other fdi/pch | |
3221 | * enabling. */ | |
88cefb6c | 3222 | ironlake_fdi_pll_enable(intel_crtc); |
46b6f814 DV |
3223 | } else { |
3224 | assert_fdi_tx_disabled(dev_priv, pipe); | |
3225 | assert_fdi_rx_disabled(dev_priv, pipe); | |
3226 | } | |
f67a559d | 3227 | |
bf49ec8c DV |
3228 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3229 | if (encoder->pre_enable) | |
3230 | encoder->pre_enable(encoder); | |
f67a559d JB |
3231 | |
3232 | /* Enable panel fitting for LVDS */ | |
b074cec8 | 3233 | ironlake_pfit_enable(intel_crtc); |
f67a559d | 3234 | |
9c54c0dd JB |
3235 | /* |
3236 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3237 | * clocks enabled | |
3238 | */ | |
3239 | intel_crtc_load_lut(crtc); | |
3240 | ||
5bfe2ac0 DV |
3241 | intel_enable_pipe(dev_priv, pipe, |
3242 | intel_crtc->config.has_pch_encoder); | |
f67a559d | 3243 | intel_enable_plane(dev_priv, plane, pipe); |
bb53d4ae | 3244 | intel_enable_planes(crtc); |
5c38d48c | 3245 | intel_crtc_update_cursor(crtc, true); |
f67a559d | 3246 | |
5bfe2ac0 | 3247 | if (intel_crtc->config.has_pch_encoder) |
f67a559d | 3248 | ironlake_pch_enable(crtc); |
c98e9dcf | 3249 | |
d1ebd816 | 3250 | mutex_lock(&dev->struct_mutex); |
bed4a673 | 3251 | intel_update_fbc(dev); |
d1ebd816 BW |
3252 | mutex_unlock(&dev->struct_mutex); |
3253 | ||
fa5c73b1 DV |
3254 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3255 | encoder->enable(encoder); | |
61b77ddd DV |
3256 | |
3257 | if (HAS_PCH_CPT(dev)) | |
a1520318 | 3258 | cpt_verify_modeset(dev, intel_crtc->pipe); |
6ce94100 DV |
3259 | |
3260 | /* | |
3261 | * There seems to be a race in PCH platform hw (at least on some | |
3262 | * outputs) where an enabled pipe still completes any pageflip right | |
3263 | * away (as if the pipe is off) instead of waiting for vblank. As soon | |
3264 | * as the first vblank happend, everything works as expected. Hence just | |
3265 | * wait for one vblank before returning to avoid strange things | |
3266 | * happening. | |
3267 | */ | |
3268 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
6be4a607 JB |
3269 | } |
3270 | ||
42db64ef PZ |
3271 | /* IPS only exists on ULT machines and is tied to pipe A. */ |
3272 | static bool hsw_crtc_supports_ips(struct intel_crtc *crtc) | |
3273 | { | |
3274 | return IS_ULT(crtc->base.dev) && crtc->pipe == PIPE_A; | |
3275 | } | |
3276 | ||
3277 | static void hsw_enable_ips(struct intel_crtc *crtc) | |
3278 | { | |
3279 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
3280 | ||
3281 | if (!crtc->config.ips_enabled) | |
3282 | return; | |
3283 | ||
3284 | /* We can only enable IPS after we enable a plane and wait for a vblank. | |
3285 | * We guarantee that the plane is enabled by calling intel_enable_ips | |
3286 | * only after intel_enable_plane. And intel_enable_plane already waits | |
3287 | * for a vblank, so all we need to do here is to enable the IPS bit. */ | |
3288 | assert_plane_enabled(dev_priv, crtc->plane); | |
3289 | I915_WRITE(IPS_CTL, IPS_ENABLE); | |
3290 | } | |
3291 | ||
3292 | static void hsw_disable_ips(struct intel_crtc *crtc) | |
3293 | { | |
3294 | struct drm_device *dev = crtc->base.dev; | |
3295 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3296 | ||
3297 | if (!crtc->config.ips_enabled) | |
3298 | return; | |
3299 | ||
3300 | assert_plane_enabled(dev_priv, crtc->plane); | |
3301 | I915_WRITE(IPS_CTL, 0); | |
3302 | ||
3303 | /* We need to wait for a vblank before we can disable the plane. */ | |
3304 | intel_wait_for_vblank(dev, crtc->pipe); | |
3305 | } | |
3306 | ||
4f771f10 PZ |
3307 | static void haswell_crtc_enable(struct drm_crtc *crtc) |
3308 | { | |
3309 | struct drm_device *dev = crtc->dev; | |
3310 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3311 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3312 | struct intel_encoder *encoder; | |
3313 | int pipe = intel_crtc->pipe; | |
3314 | int plane = intel_crtc->plane; | |
4f771f10 PZ |
3315 | |
3316 | WARN_ON(!crtc->enabled); | |
3317 | ||
3318 | if (intel_crtc->active) | |
3319 | return; | |
3320 | ||
3321 | intel_crtc->active = true; | |
8664281b PZ |
3322 | |
3323 | intel_set_cpu_fifo_underrun_reporting(dev, pipe, true); | |
3324 | if (intel_crtc->config.has_pch_encoder) | |
3325 | intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true); | |
3326 | ||
4f771f10 PZ |
3327 | intel_update_watermarks(dev); |
3328 | ||
5bfe2ac0 | 3329 | if (intel_crtc->config.has_pch_encoder) |
04945641 | 3330 | dev_priv->display.fdi_link_train(crtc); |
4f771f10 PZ |
3331 | |
3332 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3333 | if (encoder->pre_enable) | |
3334 | encoder->pre_enable(encoder); | |
3335 | ||
1f544388 | 3336 | intel_ddi_enable_pipe_clock(intel_crtc); |
4f771f10 | 3337 | |
1f544388 | 3338 | /* Enable panel fitting for eDP */ |
b074cec8 | 3339 | ironlake_pfit_enable(intel_crtc); |
4f771f10 PZ |
3340 | |
3341 | /* | |
3342 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3343 | * clocks enabled | |
3344 | */ | |
3345 | intel_crtc_load_lut(crtc); | |
3346 | ||
1f544388 | 3347 | intel_ddi_set_pipe_settings(crtc); |
8228c251 | 3348 | intel_ddi_enable_transcoder_func(crtc); |
4f771f10 | 3349 | |
5bfe2ac0 DV |
3350 | intel_enable_pipe(dev_priv, pipe, |
3351 | intel_crtc->config.has_pch_encoder); | |
4f771f10 | 3352 | intel_enable_plane(dev_priv, plane, pipe); |
bb53d4ae | 3353 | intel_enable_planes(crtc); |
5c38d48c | 3354 | intel_crtc_update_cursor(crtc, true); |
4f771f10 | 3355 | |
42db64ef PZ |
3356 | hsw_enable_ips(intel_crtc); |
3357 | ||
5bfe2ac0 | 3358 | if (intel_crtc->config.has_pch_encoder) |
1507e5bd | 3359 | lpt_pch_enable(crtc); |
4f771f10 PZ |
3360 | |
3361 | mutex_lock(&dev->struct_mutex); | |
3362 | intel_update_fbc(dev); | |
3363 | mutex_unlock(&dev->struct_mutex); | |
3364 | ||
4f771f10 PZ |
3365 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3366 | encoder->enable(encoder); | |
3367 | ||
4f771f10 PZ |
3368 | /* |
3369 | * There seems to be a race in PCH platform hw (at least on some | |
3370 | * outputs) where an enabled pipe still completes any pageflip right | |
3371 | * away (as if the pipe is off) instead of waiting for vblank. As soon | |
3372 | * as the first vblank happend, everything works as expected. Hence just | |
3373 | * wait for one vblank before returning to avoid strange things | |
3374 | * happening. | |
3375 | */ | |
3376 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
3377 | } | |
3378 | ||
3f8dce3a DV |
3379 | static void ironlake_pfit_disable(struct intel_crtc *crtc) |
3380 | { | |
3381 | struct drm_device *dev = crtc->base.dev; | |
3382 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3383 | int pipe = crtc->pipe; | |
3384 | ||
3385 | /* To avoid upsetting the power well on haswell only disable the pfit if | |
3386 | * it's in use. The hw state code will make sure we get this right. */ | |
3387 | if (crtc->config.pch_pfit.size) { | |
3388 | I915_WRITE(PF_CTL(pipe), 0); | |
3389 | I915_WRITE(PF_WIN_POS(pipe), 0); | |
3390 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
3391 | } | |
3392 | } | |
3393 | ||
6be4a607 JB |
3394 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
3395 | { | |
3396 | struct drm_device *dev = crtc->dev; | |
3397 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3398 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3399 | struct intel_encoder *encoder; |
6be4a607 JB |
3400 | int pipe = intel_crtc->pipe; |
3401 | int plane = intel_crtc->plane; | |
5eddb70b | 3402 | u32 reg, temp; |
b52eb4dc | 3403 | |
ef9c3aee | 3404 | |
f7abfe8b CW |
3405 | if (!intel_crtc->active) |
3406 | return; | |
3407 | ||
ea9d758d DV |
3408 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3409 | encoder->disable(encoder); | |
3410 | ||
e6c3a2a6 | 3411 | intel_crtc_wait_for_pending_flips(crtc); |
6be4a607 | 3412 | drm_vblank_off(dev, pipe); |
913d8d11 | 3413 | |
973d04f9 CW |
3414 | if (dev_priv->cfb_plane == plane) |
3415 | intel_disable_fbc(dev); | |
2c07245f | 3416 | |
0d5b8c61 | 3417 | intel_crtc_update_cursor(crtc, false); |
bb53d4ae | 3418 | intel_disable_planes(crtc); |
0d5b8c61 VS |
3419 | intel_disable_plane(dev_priv, plane, pipe); |
3420 | ||
8664281b | 3421 | intel_set_pch_fifo_underrun_reporting(dev, pipe, false); |
b24e7179 | 3422 | intel_disable_pipe(dev_priv, pipe); |
32f9d658 | 3423 | |
3f8dce3a | 3424 | ironlake_pfit_disable(intel_crtc); |
2c07245f | 3425 | |
bf49ec8c DV |
3426 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3427 | if (encoder->post_disable) | |
3428 | encoder->post_disable(encoder); | |
2c07245f | 3429 | |
0fc932b8 | 3430 | ironlake_fdi_disable(crtc); |
249c0e64 | 3431 | |
b8a4f404 | 3432 | ironlake_disable_pch_transcoder(dev_priv, pipe); |
8664281b | 3433 | intel_set_pch_fifo_underrun_reporting(dev, pipe, true); |
913d8d11 | 3434 | |
6be4a607 JB |
3435 | if (HAS_PCH_CPT(dev)) { |
3436 | /* disable TRANS_DP_CTL */ | |
5eddb70b CW |
3437 | reg = TRANS_DP_CTL(pipe); |
3438 | temp = I915_READ(reg); | |
3439 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); | |
cb3543c6 | 3440 | temp |= TRANS_DP_PORT_SEL_NONE; |
5eddb70b | 3441 | I915_WRITE(reg, temp); |
6be4a607 JB |
3442 | |
3443 | /* disable DPLL_SEL */ | |
3444 | temp = I915_READ(PCH_DPLL_SEL); | |
9db4a9c7 JB |
3445 | switch (pipe) { |
3446 | case 0: | |
d64311ab | 3447 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
9db4a9c7 JB |
3448 | break; |
3449 | case 1: | |
6be4a607 | 3450 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
9db4a9c7 JB |
3451 | break; |
3452 | case 2: | |
4b645f14 | 3453 | /* C shares PLL A or B */ |
d64311ab | 3454 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
9db4a9c7 JB |
3455 | break; |
3456 | default: | |
3457 | BUG(); /* wtf */ | |
3458 | } | |
6be4a607 | 3459 | I915_WRITE(PCH_DPLL_SEL, temp); |
6be4a607 | 3460 | } |
e3421a18 | 3461 | |
6be4a607 | 3462 | /* disable PCH DPLL */ |
ee7b9f93 | 3463 | intel_disable_pch_pll(intel_crtc); |
8db9d77b | 3464 | |
88cefb6c | 3465 | ironlake_fdi_pll_disable(intel_crtc); |
6b383a7f | 3466 | |
f7abfe8b | 3467 | intel_crtc->active = false; |
6b383a7f | 3468 | intel_update_watermarks(dev); |
d1ebd816 BW |
3469 | |
3470 | mutex_lock(&dev->struct_mutex); | |
6b383a7f | 3471 | intel_update_fbc(dev); |
d1ebd816 | 3472 | mutex_unlock(&dev->struct_mutex); |
6be4a607 | 3473 | } |
1b3c7a47 | 3474 | |
4f771f10 | 3475 | static void haswell_crtc_disable(struct drm_crtc *crtc) |
ee7b9f93 | 3476 | { |
4f771f10 PZ |
3477 | struct drm_device *dev = crtc->dev; |
3478 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee7b9f93 | 3479 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4f771f10 PZ |
3480 | struct intel_encoder *encoder; |
3481 | int pipe = intel_crtc->pipe; | |
3482 | int plane = intel_crtc->plane; | |
3b117c8f | 3483 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
ee7b9f93 | 3484 | |
4f771f10 PZ |
3485 | if (!intel_crtc->active) |
3486 | return; | |
3487 | ||
3488 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3489 | encoder->disable(encoder); | |
3490 | ||
3491 | intel_crtc_wait_for_pending_flips(crtc); | |
3492 | drm_vblank_off(dev, pipe); | |
4f771f10 | 3493 | |
891348b2 | 3494 | /* FBC must be disabled before disabling the plane on HSW. */ |
4f771f10 PZ |
3495 | if (dev_priv->cfb_plane == plane) |
3496 | intel_disable_fbc(dev); | |
3497 | ||
42db64ef PZ |
3498 | hsw_disable_ips(intel_crtc); |
3499 | ||
0d5b8c61 | 3500 | intel_crtc_update_cursor(crtc, false); |
bb53d4ae | 3501 | intel_disable_planes(crtc); |
891348b2 RV |
3502 | intel_disable_plane(dev_priv, plane, pipe); |
3503 | ||
8664281b PZ |
3504 | if (intel_crtc->config.has_pch_encoder) |
3505 | intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false); | |
4f771f10 PZ |
3506 | intel_disable_pipe(dev_priv, pipe); |
3507 | ||
ad80a810 | 3508 | intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder); |
4f771f10 | 3509 | |
3f8dce3a | 3510 | ironlake_pfit_disable(intel_crtc); |
4f771f10 | 3511 | |
1f544388 | 3512 | intel_ddi_disable_pipe_clock(intel_crtc); |
4f771f10 PZ |
3513 | |
3514 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3515 | if (encoder->post_disable) | |
3516 | encoder->post_disable(encoder); | |
3517 | ||
88adfff1 | 3518 | if (intel_crtc->config.has_pch_encoder) { |
ab4d966c | 3519 | lpt_disable_pch_transcoder(dev_priv); |
8664281b | 3520 | intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true); |
1ad960f2 | 3521 | intel_ddi_fdi_disable(crtc); |
83616634 | 3522 | } |
4f771f10 PZ |
3523 | |
3524 | intel_crtc->active = false; | |
3525 | intel_update_watermarks(dev); | |
3526 | ||
3527 | mutex_lock(&dev->struct_mutex); | |
3528 | intel_update_fbc(dev); | |
3529 | mutex_unlock(&dev->struct_mutex); | |
3530 | } | |
3531 | ||
ee7b9f93 JB |
3532 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
3533 | { | |
3534 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3535 | intel_put_pch_pll(intel_crtc); | |
3536 | } | |
3537 | ||
6441ab5f PZ |
3538 | static void haswell_crtc_off(struct drm_crtc *crtc) |
3539 | { | |
3540 | intel_ddi_put_crtc_pll(crtc); | |
3541 | } | |
3542 | ||
02e792fb DV |
3543 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
3544 | { | |
02e792fb | 3545 | if (!enable && intel_crtc->overlay) { |
23f09ce3 | 3546 | struct drm_device *dev = intel_crtc->base.dev; |
ce453d81 | 3547 | struct drm_i915_private *dev_priv = dev->dev_private; |
03f77ea5 | 3548 | |
23f09ce3 | 3549 | mutex_lock(&dev->struct_mutex); |
ce453d81 CW |
3550 | dev_priv->mm.interruptible = false; |
3551 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
3552 | dev_priv->mm.interruptible = true; | |
23f09ce3 | 3553 | mutex_unlock(&dev->struct_mutex); |
02e792fb | 3554 | } |
02e792fb | 3555 | |
5dcdbcb0 CW |
3556 | /* Let userspace switch the overlay on again. In most cases userspace |
3557 | * has to recompute where to put it anyway. | |
3558 | */ | |
02e792fb DV |
3559 | } |
3560 | ||
61bc95c1 EE |
3561 | /** |
3562 | * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware | |
3563 | * cursor plane briefly if not already running after enabling the display | |
3564 | * plane. | |
3565 | * This workaround avoids occasional blank screens when self refresh is | |
3566 | * enabled. | |
3567 | */ | |
3568 | static void | |
3569 | g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe) | |
3570 | { | |
3571 | u32 cntl = I915_READ(CURCNTR(pipe)); | |
3572 | ||
3573 | if ((cntl & CURSOR_MODE) == 0) { | |
3574 | u32 fw_bcl_self = I915_READ(FW_BLC_SELF); | |
3575 | ||
3576 | I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN); | |
3577 | I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX); | |
3578 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
3579 | I915_WRITE(CURCNTR(pipe), cntl); | |
3580 | I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe))); | |
3581 | I915_WRITE(FW_BLC_SELF, fw_bcl_self); | |
3582 | } | |
3583 | } | |
3584 | ||
2dd24552 JB |
3585 | static void i9xx_pfit_enable(struct intel_crtc *crtc) |
3586 | { | |
3587 | struct drm_device *dev = crtc->base.dev; | |
3588 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3589 | struct intel_crtc_config *pipe_config = &crtc->config; | |
3590 | ||
328d8e82 | 3591 | if (!crtc->config.gmch_pfit.control) |
2dd24552 JB |
3592 | return; |
3593 | ||
2dd24552 | 3594 | /* |
c0b03411 DV |
3595 | * The panel fitter should only be adjusted whilst the pipe is disabled, |
3596 | * according to register description and PRM. | |
2dd24552 | 3597 | */ |
c0b03411 DV |
3598 | WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE); |
3599 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
2dd24552 | 3600 | |
b074cec8 JB |
3601 | I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios); |
3602 | I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control); | |
5a80c45c DV |
3603 | |
3604 | /* Border color in case we don't scale up to the full screen. Black by | |
3605 | * default, change to something else for debugging. */ | |
3606 | I915_WRITE(BCLRPAT(crtc->pipe), 0); | |
2dd24552 JB |
3607 | } |
3608 | ||
89b667f8 JB |
3609 | static void valleyview_crtc_enable(struct drm_crtc *crtc) |
3610 | { | |
3611 | struct drm_device *dev = crtc->dev; | |
3612 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3613 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3614 | struct intel_encoder *encoder; | |
3615 | int pipe = intel_crtc->pipe; | |
3616 | int plane = intel_crtc->plane; | |
3617 | ||
3618 | WARN_ON(!crtc->enabled); | |
3619 | ||
3620 | if (intel_crtc->active) | |
3621 | return; | |
3622 | ||
3623 | intel_crtc->active = true; | |
3624 | intel_update_watermarks(dev); | |
3625 | ||
3626 | mutex_lock(&dev_priv->dpio_lock); | |
3627 | ||
3628 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3629 | if (encoder->pre_pll_enable) | |
3630 | encoder->pre_pll_enable(encoder); | |
3631 | ||
3632 | intel_enable_pll(dev_priv, pipe); | |
3633 | ||
3634 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3635 | if (encoder->pre_enable) | |
3636 | encoder->pre_enable(encoder); | |
3637 | ||
3638 | /* VLV wants encoder enabling _before_ the pipe is up. */ | |
3639 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3640 | encoder->enable(encoder); | |
3641 | ||
2dd24552 JB |
3642 | /* Enable panel fitting for eDP */ |
3643 | i9xx_pfit_enable(intel_crtc); | |
3644 | ||
63cbb074 VS |
3645 | intel_crtc_load_lut(crtc); |
3646 | ||
89b667f8 JB |
3647 | intel_enable_pipe(dev_priv, pipe, false); |
3648 | intel_enable_plane(dev_priv, plane, pipe); | |
bb53d4ae | 3649 | intel_enable_planes(crtc); |
5c38d48c | 3650 | intel_crtc_update_cursor(crtc, true); |
89b667f8 | 3651 | |
f440eb13 VS |
3652 | intel_update_fbc(dev); |
3653 | ||
89b667f8 JB |
3654 | mutex_unlock(&dev_priv->dpio_lock); |
3655 | } | |
3656 | ||
0b8765c6 | 3657 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
3658 | { |
3659 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
3660 | struct drm_i915_private *dev_priv = dev->dev_private; |
3661 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3662 | struct intel_encoder *encoder; |
79e53945 | 3663 | int pipe = intel_crtc->pipe; |
80824003 | 3664 | int plane = intel_crtc->plane; |
79e53945 | 3665 | |
08a48469 DV |
3666 | WARN_ON(!crtc->enabled); |
3667 | ||
f7abfe8b CW |
3668 | if (intel_crtc->active) |
3669 | return; | |
3670 | ||
3671 | intel_crtc->active = true; | |
6b383a7f CW |
3672 | intel_update_watermarks(dev); |
3673 | ||
63d7bbe9 | 3674 | intel_enable_pll(dev_priv, pipe); |
9d6d9f19 MK |
3675 | |
3676 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3677 | if (encoder->pre_enable) | |
3678 | encoder->pre_enable(encoder); | |
3679 | ||
2dd24552 JB |
3680 | /* Enable panel fitting for LVDS */ |
3681 | i9xx_pfit_enable(intel_crtc); | |
3682 | ||
63cbb074 VS |
3683 | intel_crtc_load_lut(crtc); |
3684 | ||
040484af | 3685 | intel_enable_pipe(dev_priv, pipe, false); |
b24e7179 | 3686 | intel_enable_plane(dev_priv, plane, pipe); |
bb53d4ae | 3687 | intel_enable_planes(crtc); |
5c38d48c | 3688 | intel_crtc_update_cursor(crtc, true); |
61bc95c1 EE |
3689 | if (IS_G4X(dev)) |
3690 | g4x_fixup_plane(dev_priv, pipe); | |
79e53945 | 3691 | |
0b8765c6 JB |
3692 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
3693 | intel_crtc_dpms_overlay(intel_crtc, true); | |
ef9c3aee | 3694 | |
f440eb13 VS |
3695 | intel_update_fbc(dev); |
3696 | ||
fa5c73b1 DV |
3697 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3698 | encoder->enable(encoder); | |
0b8765c6 | 3699 | } |
79e53945 | 3700 | |
87476d63 DV |
3701 | static void i9xx_pfit_disable(struct intel_crtc *crtc) |
3702 | { | |
3703 | struct drm_device *dev = crtc->base.dev; | |
3704 | struct drm_i915_private *dev_priv = dev->dev_private; | |
87476d63 | 3705 | |
328d8e82 DV |
3706 | if (!crtc->config.gmch_pfit.control) |
3707 | return; | |
87476d63 | 3708 | |
328d8e82 | 3709 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87476d63 | 3710 | |
328d8e82 DV |
3711 | DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n", |
3712 | I915_READ(PFIT_CONTROL)); | |
3713 | I915_WRITE(PFIT_CONTROL, 0); | |
87476d63 DV |
3714 | } |
3715 | ||
0b8765c6 JB |
3716 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
3717 | { | |
3718 | struct drm_device *dev = crtc->dev; | |
3719 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3720 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3721 | struct intel_encoder *encoder; |
0b8765c6 JB |
3722 | int pipe = intel_crtc->pipe; |
3723 | int plane = intel_crtc->plane; | |
ef9c3aee | 3724 | |
f7abfe8b CW |
3725 | if (!intel_crtc->active) |
3726 | return; | |
3727 | ||
ea9d758d DV |
3728 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3729 | encoder->disable(encoder); | |
3730 | ||
0b8765c6 | 3731 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
e6c3a2a6 CW |
3732 | intel_crtc_wait_for_pending_flips(crtc); |
3733 | drm_vblank_off(dev, pipe); | |
0b8765c6 | 3734 | |
973d04f9 CW |
3735 | if (dev_priv->cfb_plane == plane) |
3736 | intel_disable_fbc(dev); | |
79e53945 | 3737 | |
0d5b8c61 VS |
3738 | intel_crtc_dpms_overlay(intel_crtc, false); |
3739 | intel_crtc_update_cursor(crtc, false); | |
bb53d4ae | 3740 | intel_disable_planes(crtc); |
b24e7179 | 3741 | intel_disable_plane(dev_priv, plane, pipe); |
0d5b8c61 | 3742 | |
b24e7179 | 3743 | intel_disable_pipe(dev_priv, pipe); |
24a1f16d | 3744 | |
87476d63 | 3745 | i9xx_pfit_disable(intel_crtc); |
24a1f16d | 3746 | |
89b667f8 JB |
3747 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3748 | if (encoder->post_disable) | |
3749 | encoder->post_disable(encoder); | |
3750 | ||
63d7bbe9 | 3751 | intel_disable_pll(dev_priv, pipe); |
0b8765c6 | 3752 | |
f7abfe8b | 3753 | intel_crtc->active = false; |
6b383a7f CW |
3754 | intel_update_fbc(dev); |
3755 | intel_update_watermarks(dev); | |
0b8765c6 JB |
3756 | } |
3757 | ||
ee7b9f93 JB |
3758 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
3759 | { | |
3760 | } | |
3761 | ||
976f8a20 DV |
3762 | static void intel_crtc_update_sarea(struct drm_crtc *crtc, |
3763 | bool enabled) | |
2c07245f ZW |
3764 | { |
3765 | struct drm_device *dev = crtc->dev; | |
3766 | struct drm_i915_master_private *master_priv; | |
3767 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3768 | int pipe = intel_crtc->pipe; | |
79e53945 JB |
3769 | |
3770 | if (!dev->primary->master) | |
3771 | return; | |
3772 | ||
3773 | master_priv = dev->primary->master->driver_priv; | |
3774 | if (!master_priv->sarea_priv) | |
3775 | return; | |
3776 | ||
79e53945 JB |
3777 | switch (pipe) { |
3778 | case 0: | |
3779 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
3780 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
3781 | break; | |
3782 | case 1: | |
3783 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
3784 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
3785 | break; | |
3786 | default: | |
9db4a9c7 | 3787 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
79e53945 JB |
3788 | break; |
3789 | } | |
79e53945 JB |
3790 | } |
3791 | ||
976f8a20 DV |
3792 | /** |
3793 | * Sets the power management mode of the pipe and plane. | |
3794 | */ | |
3795 | void intel_crtc_update_dpms(struct drm_crtc *crtc) | |
3796 | { | |
3797 | struct drm_device *dev = crtc->dev; | |
3798 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3799 | struct intel_encoder *intel_encoder; | |
3800 | bool enable = false; | |
3801 | ||
3802 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) | |
3803 | enable |= intel_encoder->connectors_active; | |
3804 | ||
3805 | if (enable) | |
3806 | dev_priv->display.crtc_enable(crtc); | |
3807 | else | |
3808 | dev_priv->display.crtc_disable(crtc); | |
3809 | ||
3810 | intel_crtc_update_sarea(crtc, enable); | |
3811 | } | |
3812 | ||
cdd59983 CW |
3813 | static void intel_crtc_disable(struct drm_crtc *crtc) |
3814 | { | |
cdd59983 | 3815 | struct drm_device *dev = crtc->dev; |
976f8a20 | 3816 | struct drm_connector *connector; |
ee7b9f93 | 3817 | struct drm_i915_private *dev_priv = dev->dev_private; |
7b9f35a6 | 3818 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
cdd59983 | 3819 | |
976f8a20 DV |
3820 | /* crtc should still be enabled when we disable it. */ |
3821 | WARN_ON(!crtc->enabled); | |
3822 | ||
3823 | dev_priv->display.crtc_disable(crtc); | |
c77bf565 | 3824 | intel_crtc->eld_vld = false; |
976f8a20 | 3825 | intel_crtc_update_sarea(crtc, false); |
ee7b9f93 JB |
3826 | dev_priv->display.off(crtc); |
3827 | ||
931872fc CW |
3828 | assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); |
3829 | assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); | |
cdd59983 CW |
3830 | |
3831 | if (crtc->fb) { | |
3832 | mutex_lock(&dev->struct_mutex); | |
1690e1eb | 3833 | intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
cdd59983 | 3834 | mutex_unlock(&dev->struct_mutex); |
976f8a20 DV |
3835 | crtc->fb = NULL; |
3836 | } | |
3837 | ||
3838 | /* Update computed state. */ | |
3839 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
3840 | if (!connector->encoder || !connector->encoder->crtc) | |
3841 | continue; | |
3842 | ||
3843 | if (connector->encoder->crtc != crtc) | |
3844 | continue; | |
3845 | ||
3846 | connector->dpms = DRM_MODE_DPMS_OFF; | |
3847 | to_intel_encoder(connector->encoder)->connectors_active = false; | |
cdd59983 CW |
3848 | } |
3849 | } | |
3850 | ||
a261b246 | 3851 | void intel_modeset_disable(struct drm_device *dev) |
79e53945 | 3852 | { |
a261b246 DV |
3853 | struct drm_crtc *crtc; |
3854 | ||
3855 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
3856 | if (crtc->enabled) | |
3857 | intel_crtc_disable(crtc); | |
3858 | } | |
79e53945 JB |
3859 | } |
3860 | ||
ea5b213a | 3861 | void intel_encoder_destroy(struct drm_encoder *encoder) |
7e7d76c3 | 3862 | { |
4ef69c7a | 3863 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 3864 | |
ea5b213a CW |
3865 | drm_encoder_cleanup(encoder); |
3866 | kfree(intel_encoder); | |
7e7d76c3 JB |
3867 | } |
3868 | ||
5ab432ef DV |
3869 | /* Simple dpms helper for encodres with just one connector, no cloning and only |
3870 | * one kind of off state. It clamps all !ON modes to fully OFF and changes the | |
3871 | * state of the entire output pipe. */ | |
3872 | void intel_encoder_dpms(struct intel_encoder *encoder, int mode) | |
7e7d76c3 | 3873 | { |
5ab432ef DV |
3874 | if (mode == DRM_MODE_DPMS_ON) { |
3875 | encoder->connectors_active = true; | |
3876 | ||
b2cabb0e | 3877 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef DV |
3878 | } else { |
3879 | encoder->connectors_active = false; | |
3880 | ||
b2cabb0e | 3881 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef | 3882 | } |
79e53945 JB |
3883 | } |
3884 | ||
0a91ca29 DV |
3885 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
3886 | * internal consistency). */ | |
b980514c | 3887 | static void intel_connector_check_state(struct intel_connector *connector) |
79e53945 | 3888 | { |
0a91ca29 DV |
3889 | if (connector->get_hw_state(connector)) { |
3890 | struct intel_encoder *encoder = connector->encoder; | |
3891 | struct drm_crtc *crtc; | |
3892 | bool encoder_enabled; | |
3893 | enum pipe pipe; | |
3894 | ||
3895 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
3896 | connector->base.base.id, | |
3897 | drm_get_connector_name(&connector->base)); | |
3898 | ||
3899 | WARN(connector->base.dpms == DRM_MODE_DPMS_OFF, | |
3900 | "wrong connector dpms state\n"); | |
3901 | WARN(connector->base.encoder != &encoder->base, | |
3902 | "active connector not linked to encoder\n"); | |
3903 | WARN(!encoder->connectors_active, | |
3904 | "encoder->connectors_active not set\n"); | |
3905 | ||
3906 | encoder_enabled = encoder->get_hw_state(encoder, &pipe); | |
3907 | WARN(!encoder_enabled, "encoder not enabled\n"); | |
3908 | if (WARN_ON(!encoder->base.crtc)) | |
3909 | return; | |
3910 | ||
3911 | crtc = encoder->base.crtc; | |
3912 | ||
3913 | WARN(!crtc->enabled, "crtc not enabled\n"); | |
3914 | WARN(!to_intel_crtc(crtc)->active, "crtc not active\n"); | |
3915 | WARN(pipe != to_intel_crtc(crtc)->pipe, | |
3916 | "encoder active on the wrong pipe\n"); | |
3917 | } | |
79e53945 JB |
3918 | } |
3919 | ||
5ab432ef DV |
3920 | /* Even simpler default implementation, if there's really no special case to |
3921 | * consider. */ | |
3922 | void intel_connector_dpms(struct drm_connector *connector, int mode) | |
79e53945 | 3923 | { |
5ab432ef | 3924 | struct intel_encoder *encoder = intel_attached_encoder(connector); |
d4270e57 | 3925 | |
5ab432ef DV |
3926 | /* All the simple cases only support two dpms states. */ |
3927 | if (mode != DRM_MODE_DPMS_ON) | |
3928 | mode = DRM_MODE_DPMS_OFF; | |
d4270e57 | 3929 | |
5ab432ef DV |
3930 | if (mode == connector->dpms) |
3931 | return; | |
3932 | ||
3933 | connector->dpms = mode; | |
3934 | ||
3935 | /* Only need to change hw state when actually enabled */ | |
3936 | if (encoder->base.crtc) | |
3937 | intel_encoder_dpms(encoder, mode); | |
3938 | else | |
8af6cf88 | 3939 | WARN_ON(encoder->connectors_active != false); |
0a91ca29 | 3940 | |
b980514c | 3941 | intel_modeset_check_state(connector->dev); |
79e53945 JB |
3942 | } |
3943 | ||
f0947c37 DV |
3944 | /* Simple connector->get_hw_state implementation for encoders that support only |
3945 | * one connector and no cloning and hence the encoder state determines the state | |
3946 | * of the connector. */ | |
3947 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
ea5b213a | 3948 | { |
24929352 | 3949 | enum pipe pipe = 0; |
f0947c37 | 3950 | struct intel_encoder *encoder = connector->encoder; |
ea5b213a | 3951 | |
f0947c37 | 3952 | return encoder->get_hw_state(encoder, &pipe); |
ea5b213a CW |
3953 | } |
3954 | ||
1857e1da DV |
3955 | static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe, |
3956 | struct intel_crtc_config *pipe_config) | |
3957 | { | |
3958 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3959 | struct intel_crtc *pipe_B_crtc = | |
3960 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]); | |
3961 | ||
3962 | DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n", | |
3963 | pipe_name(pipe), pipe_config->fdi_lanes); | |
3964 | if (pipe_config->fdi_lanes > 4) { | |
3965 | DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n", | |
3966 | pipe_name(pipe), pipe_config->fdi_lanes); | |
3967 | return false; | |
3968 | } | |
3969 | ||
3970 | if (IS_HASWELL(dev)) { | |
3971 | if (pipe_config->fdi_lanes > 2) { | |
3972 | DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n", | |
3973 | pipe_config->fdi_lanes); | |
3974 | return false; | |
3975 | } else { | |
3976 | return true; | |
3977 | } | |
3978 | } | |
3979 | ||
3980 | if (INTEL_INFO(dev)->num_pipes == 2) | |
3981 | return true; | |
3982 | ||
3983 | /* Ivybridge 3 pipe is really complicated */ | |
3984 | switch (pipe) { | |
3985 | case PIPE_A: | |
3986 | return true; | |
3987 | case PIPE_B: | |
3988 | if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled && | |
3989 | pipe_config->fdi_lanes > 2) { | |
3990 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n", | |
3991 | pipe_name(pipe), pipe_config->fdi_lanes); | |
3992 | return false; | |
3993 | } | |
3994 | return true; | |
3995 | case PIPE_C: | |
1e833f40 | 3996 | if (!pipe_has_enabled_pch(pipe_B_crtc) || |
1857e1da DV |
3997 | pipe_B_crtc->config.fdi_lanes <= 2) { |
3998 | if (pipe_config->fdi_lanes > 2) { | |
3999 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n", | |
4000 | pipe_name(pipe), pipe_config->fdi_lanes); | |
4001 | return false; | |
4002 | } | |
4003 | } else { | |
4004 | DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n"); | |
4005 | return false; | |
4006 | } | |
4007 | return true; | |
4008 | default: | |
4009 | BUG(); | |
4010 | } | |
4011 | } | |
4012 | ||
e29c22c0 DV |
4013 | #define RETRY 1 |
4014 | static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc, | |
4015 | struct intel_crtc_config *pipe_config) | |
877d48d5 | 4016 | { |
1857e1da | 4017 | struct drm_device *dev = intel_crtc->base.dev; |
877d48d5 | 4018 | struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; |
ff9a6750 | 4019 | int lane, link_bw, fdi_dotclock; |
e29c22c0 | 4020 | bool setup_ok, needs_recompute = false; |
877d48d5 | 4021 | |
e29c22c0 | 4022 | retry: |
877d48d5 DV |
4023 | /* FDI is a binary signal running at ~2.7GHz, encoding |
4024 | * each output octet as 10 bits. The actual frequency | |
4025 | * is stored as a divider into a 100MHz clock, and the | |
4026 | * mode pixel clock is stored in units of 1KHz. | |
4027 | * Hence the bw of each lane in terms of the mode signal | |
4028 | * is: | |
4029 | */ | |
4030 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
4031 | ||
ff9a6750 | 4032 | fdi_dotclock = adjusted_mode->clock; |
ef1b460d | 4033 | fdi_dotclock /= pipe_config->pixel_multiplier; |
2bd89a07 DV |
4034 | |
4035 | lane = ironlake_get_lanes_required(fdi_dotclock, link_bw, | |
877d48d5 DV |
4036 | pipe_config->pipe_bpp); |
4037 | ||
4038 | pipe_config->fdi_lanes = lane; | |
4039 | ||
2bd89a07 | 4040 | intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock, |
877d48d5 | 4041 | link_bw, &pipe_config->fdi_m_n); |
1857e1da | 4042 | |
e29c22c0 DV |
4043 | setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev, |
4044 | intel_crtc->pipe, pipe_config); | |
4045 | if (!setup_ok && pipe_config->pipe_bpp > 6*3) { | |
4046 | pipe_config->pipe_bpp -= 2*3; | |
4047 | DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n", | |
4048 | pipe_config->pipe_bpp); | |
4049 | needs_recompute = true; | |
4050 | pipe_config->bw_constrained = true; | |
4051 | ||
4052 | goto retry; | |
4053 | } | |
4054 | ||
4055 | if (needs_recompute) | |
4056 | return RETRY; | |
4057 | ||
4058 | return setup_ok ? 0 : -EINVAL; | |
877d48d5 DV |
4059 | } |
4060 | ||
42db64ef PZ |
4061 | static void hsw_compute_ips_config(struct intel_crtc *crtc, |
4062 | struct intel_crtc_config *pipe_config) | |
4063 | { | |
3c4ca58c PZ |
4064 | pipe_config->ips_enabled = i915_enable_ips && |
4065 | hsw_crtc_supports_ips(crtc) && | |
42db64ef PZ |
4066 | pipe_config->pipe_bpp == 24; |
4067 | } | |
4068 | ||
e29c22c0 DV |
4069 | static int intel_crtc_compute_config(struct drm_crtc *crtc, |
4070 | struct intel_crtc_config *pipe_config) | |
79e53945 | 4071 | { |
2c07245f | 4072 | struct drm_device *dev = crtc->dev; |
b8cecdf5 | 4073 | struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; |
42db64ef | 4074 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
89749350 | 4075 | |
bad720ff | 4076 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f | 4077 | /* FDI link clock is fixed at 2.7G */ |
b8cecdf5 DV |
4078 | if (pipe_config->requested_mode.clock * 3 |
4079 | > IRONLAKE_FDI_FREQ * 4) | |
e29c22c0 | 4080 | return -EINVAL; |
2c07245f | 4081 | } |
89749350 | 4082 | |
f9bef081 DV |
4083 | /* All interlaced capable intel hw wants timings in frames. Note though |
4084 | * that intel_lvds_mode_fixup does some funny tricks with the crtc | |
4085 | * timings, so we need to be careful not to clobber these.*/ | |
7ae89233 | 4086 | if (!pipe_config->timings_set) |
f9bef081 | 4087 | drm_mode_set_crtcinfo(adjusted_mode, 0); |
89749350 | 4088 | |
8693a824 DL |
4089 | /* Cantiga+ cannot handle modes with a hsync front porch of 0. |
4090 | * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw. | |
44f46b42 CW |
4091 | */ |
4092 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && | |
4093 | adjusted_mode->hsync_start == adjusted_mode->hdisplay) | |
e29c22c0 | 4094 | return -EINVAL; |
44f46b42 | 4095 | |
bd080ee5 | 4096 | if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) { |
5d2d38dd | 4097 | pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */ |
bd080ee5 | 4098 | } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) { |
5d2d38dd DV |
4099 | /* only a 8bpc pipe, with 6bpc dither through the panel fitter |
4100 | * for lvds. */ | |
4101 | pipe_config->pipe_bpp = 8*3; | |
4102 | } | |
4103 | ||
42db64ef PZ |
4104 | if (IS_HASWELL(dev)) |
4105 | hsw_compute_ips_config(intel_crtc, pipe_config); | |
4106 | ||
877d48d5 | 4107 | if (pipe_config->has_pch_encoder) |
42db64ef | 4108 | return ironlake_fdi_compute_config(intel_crtc, pipe_config); |
877d48d5 | 4109 | |
e29c22c0 | 4110 | return 0; |
79e53945 JB |
4111 | } |
4112 | ||
25eb05fc JB |
4113 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
4114 | { | |
4115 | return 400000; /* FIXME */ | |
4116 | } | |
4117 | ||
e70236a8 JB |
4118 | static int i945_get_display_clock_speed(struct drm_device *dev) |
4119 | { | |
4120 | return 400000; | |
4121 | } | |
79e53945 | 4122 | |
e70236a8 | 4123 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 4124 | { |
e70236a8 JB |
4125 | return 333000; |
4126 | } | |
79e53945 | 4127 | |
e70236a8 JB |
4128 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
4129 | { | |
4130 | return 200000; | |
4131 | } | |
79e53945 | 4132 | |
e70236a8 JB |
4133 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
4134 | { | |
4135 | u16 gcfgc = 0; | |
79e53945 | 4136 | |
e70236a8 JB |
4137 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
4138 | ||
4139 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
4140 | return 133000; | |
4141 | else { | |
4142 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
4143 | case GC_DISPLAY_CLOCK_333_MHZ: | |
4144 | return 333000; | |
4145 | default: | |
4146 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
4147 | return 190000; | |
79e53945 | 4148 | } |
e70236a8 JB |
4149 | } |
4150 | } | |
4151 | ||
4152 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
4153 | { | |
4154 | return 266000; | |
4155 | } | |
4156 | ||
4157 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
4158 | { | |
4159 | u16 hpllcc = 0; | |
4160 | /* Assume that the hardware is in the high speed state. This | |
4161 | * should be the default. | |
4162 | */ | |
4163 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
4164 | case GC_CLOCK_133_200: | |
4165 | case GC_CLOCK_100_200: | |
4166 | return 200000; | |
4167 | case GC_CLOCK_166_250: | |
4168 | return 250000; | |
4169 | case GC_CLOCK_100_133: | |
79e53945 | 4170 | return 133000; |
e70236a8 | 4171 | } |
79e53945 | 4172 | |
e70236a8 JB |
4173 | /* Shouldn't happen */ |
4174 | return 0; | |
4175 | } | |
79e53945 | 4176 | |
e70236a8 JB |
4177 | static int i830_get_display_clock_speed(struct drm_device *dev) |
4178 | { | |
4179 | return 133000; | |
79e53945 JB |
4180 | } |
4181 | ||
2c07245f | 4182 | static void |
a65851af | 4183 | intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den) |
2c07245f | 4184 | { |
a65851af VS |
4185 | while (*num > DATA_LINK_M_N_MASK || |
4186 | *den > DATA_LINK_M_N_MASK) { | |
2c07245f ZW |
4187 | *num >>= 1; |
4188 | *den >>= 1; | |
4189 | } | |
4190 | } | |
4191 | ||
a65851af VS |
4192 | static void compute_m_n(unsigned int m, unsigned int n, |
4193 | uint32_t *ret_m, uint32_t *ret_n) | |
4194 | { | |
4195 | *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX); | |
4196 | *ret_m = div_u64((uint64_t) m * *ret_n, n); | |
4197 | intel_reduce_m_n_ratio(ret_m, ret_n); | |
4198 | } | |
4199 | ||
e69d0bc1 DV |
4200 | void |
4201 | intel_link_compute_m_n(int bits_per_pixel, int nlanes, | |
4202 | int pixel_clock, int link_clock, | |
4203 | struct intel_link_m_n *m_n) | |
2c07245f | 4204 | { |
e69d0bc1 | 4205 | m_n->tu = 64; |
a65851af VS |
4206 | |
4207 | compute_m_n(bits_per_pixel * pixel_clock, | |
4208 | link_clock * nlanes * 8, | |
4209 | &m_n->gmch_m, &m_n->gmch_n); | |
4210 | ||
4211 | compute_m_n(pixel_clock, link_clock, | |
4212 | &m_n->link_m, &m_n->link_n); | |
2c07245f ZW |
4213 | } |
4214 | ||
a7615030 CW |
4215 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
4216 | { | |
72bbe58c KP |
4217 | if (i915_panel_use_ssc >= 0) |
4218 | return i915_panel_use_ssc != 0; | |
41aa3448 | 4219 | return dev_priv->vbt.lvds_use_ssc |
435793df | 4220 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
4221 | } |
4222 | ||
a0c4da24 JB |
4223 | static int vlv_get_refclk(struct drm_crtc *crtc) |
4224 | { | |
4225 | struct drm_device *dev = crtc->dev; | |
4226 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4227 | int refclk = 27000; /* for DP & HDMI */ | |
4228 | ||
4229 | return 100000; /* only one validated so far */ | |
4230 | ||
4231 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
4232 | refclk = 96000; | |
4233 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4234 | if (intel_panel_use_ssc(dev_priv)) | |
4235 | refclk = 100000; | |
4236 | else | |
4237 | refclk = 96000; | |
4238 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { | |
4239 | refclk = 100000; | |
4240 | } | |
4241 | ||
4242 | return refclk; | |
4243 | } | |
4244 | ||
c65d77d8 JB |
4245 | static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors) |
4246 | { | |
4247 | struct drm_device *dev = crtc->dev; | |
4248 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4249 | int refclk; | |
4250 | ||
a0c4da24 JB |
4251 | if (IS_VALLEYVIEW(dev)) { |
4252 | refclk = vlv_get_refclk(crtc); | |
4253 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
c65d77d8 | 4254 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
41aa3448 | 4255 | refclk = dev_priv->vbt.lvds_ssc_freq * 1000; |
c65d77d8 JB |
4256 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
4257 | refclk / 1000); | |
4258 | } else if (!IS_GEN2(dev)) { | |
4259 | refclk = 96000; | |
4260 | } else { | |
4261 | refclk = 48000; | |
4262 | } | |
4263 | ||
4264 | return refclk; | |
4265 | } | |
4266 | ||
7429e9d4 DV |
4267 | static uint32_t pnv_dpll_compute_fp(struct dpll *dpll) |
4268 | { | |
4269 | return (1 << dpll->n) << 16 | dpll->m1 << 8 | dpll->m2; | |
4270 | } | |
4271 | ||
4272 | static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll) | |
4273 | { | |
4274 | return dpll->n << 16 | dpll->m1 << 8 | dpll->m2; | |
4275 | } | |
4276 | ||
f47709a9 | 4277 | static void i9xx_update_pll_dividers(struct intel_crtc *crtc, |
a7516a05 JB |
4278 | intel_clock_t *reduced_clock) |
4279 | { | |
f47709a9 | 4280 | struct drm_device *dev = crtc->base.dev; |
a7516a05 | 4281 | struct drm_i915_private *dev_priv = dev->dev_private; |
f47709a9 | 4282 | int pipe = crtc->pipe; |
a7516a05 JB |
4283 | u32 fp, fp2 = 0; |
4284 | ||
4285 | if (IS_PINEVIEW(dev)) { | |
7429e9d4 | 4286 | fp = pnv_dpll_compute_fp(&crtc->config.dpll); |
a7516a05 | 4287 | if (reduced_clock) |
7429e9d4 | 4288 | fp2 = pnv_dpll_compute_fp(reduced_clock); |
a7516a05 | 4289 | } else { |
7429e9d4 | 4290 | fp = i9xx_dpll_compute_fp(&crtc->config.dpll); |
a7516a05 | 4291 | if (reduced_clock) |
7429e9d4 | 4292 | fp2 = i9xx_dpll_compute_fp(reduced_clock); |
a7516a05 JB |
4293 | } |
4294 | ||
4295 | I915_WRITE(FP0(pipe), fp); | |
4296 | ||
f47709a9 DV |
4297 | crtc->lowfreq_avail = false; |
4298 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && | |
a7516a05 JB |
4299 | reduced_clock && i915_powersave) { |
4300 | I915_WRITE(FP1(pipe), fp2); | |
f47709a9 | 4301 | crtc->lowfreq_avail = true; |
a7516a05 JB |
4302 | } else { |
4303 | I915_WRITE(FP1(pipe), fp); | |
4304 | } | |
4305 | } | |
4306 | ||
89b667f8 JB |
4307 | static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv) |
4308 | { | |
4309 | u32 reg_val; | |
4310 | ||
4311 | /* | |
4312 | * PLLB opamp always calibrates to max value of 0x3f, force enable it | |
4313 | * and set it to a reasonable value instead. | |
4314 | */ | |
ae99258f | 4315 | reg_val = vlv_dpio_read(dev_priv, DPIO_IREF(1)); |
89b667f8 JB |
4316 | reg_val &= 0xffffff00; |
4317 | reg_val |= 0x00000030; | |
ae99258f | 4318 | vlv_dpio_write(dev_priv, DPIO_IREF(1), reg_val); |
89b667f8 | 4319 | |
ae99258f | 4320 | reg_val = vlv_dpio_read(dev_priv, DPIO_CALIBRATION); |
89b667f8 JB |
4321 | reg_val &= 0x8cffffff; |
4322 | reg_val = 0x8c000000; | |
ae99258f | 4323 | vlv_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val); |
89b667f8 | 4324 | |
ae99258f | 4325 | reg_val = vlv_dpio_read(dev_priv, DPIO_IREF(1)); |
89b667f8 | 4326 | reg_val &= 0xffffff00; |
ae99258f | 4327 | vlv_dpio_write(dev_priv, DPIO_IREF(1), reg_val); |
89b667f8 | 4328 | |
ae99258f | 4329 | reg_val = vlv_dpio_read(dev_priv, DPIO_CALIBRATION); |
89b667f8 JB |
4330 | reg_val &= 0x00ffffff; |
4331 | reg_val |= 0xb0000000; | |
ae99258f | 4332 | vlv_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val); |
89b667f8 JB |
4333 | } |
4334 | ||
b551842d DV |
4335 | static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc, |
4336 | struct intel_link_m_n *m_n) | |
4337 | { | |
4338 | struct drm_device *dev = crtc->base.dev; | |
4339 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4340 | int pipe = crtc->pipe; | |
4341 | ||
e3b95f1e DV |
4342 | I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
4343 | I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n); | |
4344 | I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m); | |
4345 | I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n); | |
b551842d DV |
4346 | } |
4347 | ||
4348 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, | |
4349 | struct intel_link_m_n *m_n) | |
4350 | { | |
4351 | struct drm_device *dev = crtc->base.dev; | |
4352 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4353 | int pipe = crtc->pipe; | |
4354 | enum transcoder transcoder = crtc->config.cpu_transcoder; | |
4355 | ||
4356 | if (INTEL_INFO(dev)->gen >= 5) { | |
4357 | I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m); | |
4358 | I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n); | |
4359 | I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m); | |
4360 | I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n); | |
4361 | } else { | |
e3b95f1e DV |
4362 | I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
4363 | I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n); | |
4364 | I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m); | |
4365 | I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n); | |
b551842d DV |
4366 | } |
4367 | } | |
4368 | ||
03afc4a2 DV |
4369 | static void intel_dp_set_m_n(struct intel_crtc *crtc) |
4370 | { | |
4371 | if (crtc->config.has_pch_encoder) | |
4372 | intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n); | |
4373 | else | |
4374 | intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n); | |
4375 | } | |
4376 | ||
f47709a9 | 4377 | static void vlv_update_pll(struct intel_crtc *crtc) |
a0c4da24 | 4378 | { |
f47709a9 | 4379 | struct drm_device *dev = crtc->base.dev; |
a0c4da24 | 4380 | struct drm_i915_private *dev_priv = dev->dev_private; |
89b667f8 | 4381 | struct intel_encoder *encoder; |
f47709a9 | 4382 | int pipe = crtc->pipe; |
89b667f8 | 4383 | u32 dpll, mdiv; |
a0c4da24 | 4384 | u32 bestn, bestm1, bestm2, bestp1, bestp2; |
89b667f8 | 4385 | bool is_hdmi; |
198a037f | 4386 | u32 coreclk, reg_val, dpll_md; |
a0c4da24 | 4387 | |
09153000 DV |
4388 | mutex_lock(&dev_priv->dpio_lock); |
4389 | ||
89b667f8 | 4390 | is_hdmi = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI); |
a0c4da24 | 4391 | |
f47709a9 DV |
4392 | bestn = crtc->config.dpll.n; |
4393 | bestm1 = crtc->config.dpll.m1; | |
4394 | bestm2 = crtc->config.dpll.m2; | |
4395 | bestp1 = crtc->config.dpll.p1; | |
4396 | bestp2 = crtc->config.dpll.p2; | |
a0c4da24 | 4397 | |
89b667f8 JB |
4398 | /* See eDP HDMI DPIO driver vbios notes doc */ |
4399 | ||
4400 | /* PLL B needs special handling */ | |
4401 | if (pipe) | |
4402 | vlv_pllb_recal_opamp(dev_priv); | |
4403 | ||
4404 | /* Set up Tx target for periodic Rcomp update */ | |
ae99258f | 4405 | vlv_dpio_write(dev_priv, DPIO_IREF_BCAST, 0x0100000f); |
89b667f8 JB |
4406 | |
4407 | /* Disable target IRef on PLL */ | |
ae99258f | 4408 | reg_val = vlv_dpio_read(dev_priv, DPIO_IREF_CTL(pipe)); |
89b667f8 | 4409 | reg_val &= 0x00ffffff; |
ae99258f | 4410 | vlv_dpio_write(dev_priv, DPIO_IREF_CTL(pipe), reg_val); |
89b667f8 JB |
4411 | |
4412 | /* Disable fast lock */ | |
ae99258f | 4413 | vlv_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x610); |
89b667f8 JB |
4414 | |
4415 | /* Set idtafcrecal before PLL is enabled */ | |
a0c4da24 JB |
4416 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); |
4417 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
4418 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
a0c4da24 | 4419 | mdiv |= (1 << DPIO_K_SHIFT); |
7df5080b JB |
4420 | |
4421 | /* | |
4422 | * Post divider depends on pixel clock rate, DAC vs digital (and LVDS, | |
4423 | * but we don't support that). | |
4424 | * Note: don't use the DAC post divider as it seems unstable. | |
4425 | */ | |
4426 | mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT); | |
ae99258f | 4427 | vlv_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv); |
a0c4da24 | 4428 | |
89b667f8 | 4429 | mdiv |= DPIO_ENABLE_CALIBRATION; |
ae99258f | 4430 | vlv_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv); |
a0c4da24 | 4431 | |
89b667f8 | 4432 | /* Set HBR and RBR LPF coefficients */ |
ff9a6750 | 4433 | if (crtc->config.port_clock == 162000 || |
89b667f8 | 4434 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI)) |
ae99258f | 4435 | vlv_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), |
89b667f8 JB |
4436 | 0x005f0021); |
4437 | else | |
ae99258f | 4438 | vlv_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), |
89b667f8 JB |
4439 | 0x00d0000f); |
4440 | ||
4441 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) || | |
4442 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) { | |
4443 | /* Use SSC source */ | |
4444 | if (!pipe) | |
ae99258f | 4445 | vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe), |
89b667f8 JB |
4446 | 0x0df40000); |
4447 | else | |
ae99258f | 4448 | vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe), |
89b667f8 JB |
4449 | 0x0df70000); |
4450 | } else { /* HDMI or VGA */ | |
4451 | /* Use bend source */ | |
4452 | if (!pipe) | |
ae99258f | 4453 | vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe), |
89b667f8 JB |
4454 | 0x0df70000); |
4455 | else | |
ae99258f | 4456 | vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe), |
89b667f8 JB |
4457 | 0x0df40000); |
4458 | } | |
a0c4da24 | 4459 | |
ae99258f | 4460 | coreclk = vlv_dpio_read(dev_priv, DPIO_CORE_CLK(pipe)); |
89b667f8 JB |
4461 | coreclk = (coreclk & 0x0000ff00) | 0x01c00000; |
4462 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) || | |
4463 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP)) | |
4464 | coreclk |= 0x01000000; | |
ae99258f | 4465 | vlv_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), coreclk); |
a0c4da24 | 4466 | |
ae99258f | 4467 | vlv_dpio_write(dev_priv, DPIO_PLL_CML(pipe), 0x87871000); |
a0c4da24 | 4468 | |
89b667f8 JB |
4469 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
4470 | if (encoder->pre_pll_enable) | |
4471 | encoder->pre_pll_enable(encoder); | |
2a8f64ca | 4472 | |
89b667f8 JB |
4473 | /* Enable DPIO clock input */ |
4474 | dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV | | |
4475 | DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV; | |
4476 | if (pipe) | |
4477 | dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
2a8f64ca | 4478 | |
89b667f8 | 4479 | dpll |= DPLL_VCO_ENABLE; |
2a8f64ca | 4480 | I915_WRITE(DPLL(pipe), dpll); |
2a8f64ca VP |
4481 | POSTING_READ(DPLL(pipe)); |
4482 | udelay(150); | |
a0c4da24 | 4483 | |
89b667f8 JB |
4484 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) |
4485 | DRM_ERROR("DPLL %d failed to lock\n", pipe); | |
4486 | ||
ef1b460d DV |
4487 | dpll_md = (crtc->config.pixel_multiplier - 1) |
4488 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
198a037f DV |
4489 | I915_WRITE(DPLL_MD(pipe), dpll_md); |
4490 | POSTING_READ(DPLL_MD(pipe)); | |
f47709a9 | 4491 | |
89b667f8 JB |
4492 | if (crtc->config.has_dp_encoder) |
4493 | intel_dp_set_m_n(crtc); | |
09153000 DV |
4494 | |
4495 | mutex_unlock(&dev_priv->dpio_lock); | |
a0c4da24 JB |
4496 | } |
4497 | ||
f47709a9 DV |
4498 | static void i9xx_update_pll(struct intel_crtc *crtc, |
4499 | intel_clock_t *reduced_clock, | |
eb1cbe48 DV |
4500 | int num_connectors) |
4501 | { | |
f47709a9 | 4502 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 4503 | struct drm_i915_private *dev_priv = dev->dev_private; |
dafd226c | 4504 | struct intel_encoder *encoder; |
f47709a9 | 4505 | int pipe = crtc->pipe; |
eb1cbe48 DV |
4506 | u32 dpll; |
4507 | bool is_sdvo; | |
f47709a9 | 4508 | struct dpll *clock = &crtc->config.dpll; |
eb1cbe48 | 4509 | |
f47709a9 | 4510 | i9xx_update_pll_dividers(crtc, reduced_clock); |
2a8f64ca | 4511 | |
f47709a9 DV |
4512 | is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) || |
4513 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI); | |
eb1cbe48 DV |
4514 | |
4515 | dpll = DPLL_VGA_MODE_DIS; | |
4516 | ||
f47709a9 | 4517 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) |
eb1cbe48 DV |
4518 | dpll |= DPLLB_MODE_LVDS; |
4519 | else | |
4520 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
6cc5f341 | 4521 | |
ef1b460d | 4522 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
198a037f DV |
4523 | dpll |= (crtc->config.pixel_multiplier - 1) |
4524 | << SDVO_MULTIPLIER_SHIFT_HIRES; | |
eb1cbe48 | 4525 | } |
198a037f DV |
4526 | |
4527 | if (is_sdvo) | |
4528 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4529 | ||
f47709a9 | 4530 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) |
eb1cbe48 DV |
4531 | dpll |= DPLL_DVO_HIGH_SPEED; |
4532 | ||
4533 | /* compute bitmask from p1 value */ | |
4534 | if (IS_PINEVIEW(dev)) | |
4535 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
4536 | else { | |
4537 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4538 | if (IS_G4X(dev) && reduced_clock) | |
4539 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4540 | } | |
4541 | switch (clock->p2) { | |
4542 | case 5: | |
4543 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4544 | break; | |
4545 | case 7: | |
4546 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4547 | break; | |
4548 | case 10: | |
4549 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4550 | break; | |
4551 | case 14: | |
4552 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4553 | break; | |
4554 | } | |
4555 | if (INTEL_INFO(dev)->gen >= 4) | |
4556 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
4557 | ||
09ede541 | 4558 | if (crtc->config.sdvo_tv_clock) |
eb1cbe48 | 4559 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
f47709a9 | 4560 | else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
4561 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
4562 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4563 | else | |
4564 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4565 | ||
4566 | dpll |= DPLL_VCO_ENABLE; | |
4567 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4568 | POSTING_READ(DPLL(pipe)); | |
4569 | udelay(150); | |
4570 | ||
f47709a9 | 4571 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
dafd226c DV |
4572 | if (encoder->pre_pll_enable) |
4573 | encoder->pre_pll_enable(encoder); | |
eb1cbe48 | 4574 | |
f47709a9 DV |
4575 | if (crtc->config.has_dp_encoder) |
4576 | intel_dp_set_m_n(crtc); | |
eb1cbe48 DV |
4577 | |
4578 | I915_WRITE(DPLL(pipe), dpll); | |
4579 | ||
4580 | /* Wait for the clocks to stabilize. */ | |
4581 | POSTING_READ(DPLL(pipe)); | |
4582 | udelay(150); | |
4583 | ||
4584 | if (INTEL_INFO(dev)->gen >= 4) { | |
ef1b460d DV |
4585 | u32 dpll_md = (crtc->config.pixel_multiplier - 1) |
4586 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
198a037f | 4587 | I915_WRITE(DPLL_MD(pipe), dpll_md); |
eb1cbe48 DV |
4588 | } else { |
4589 | /* The pixel multiplier can only be updated once the | |
4590 | * DPLL is enabled and the clocks are stable. | |
4591 | * | |
4592 | * So write it again. | |
4593 | */ | |
4594 | I915_WRITE(DPLL(pipe), dpll); | |
4595 | } | |
4596 | } | |
4597 | ||
f47709a9 | 4598 | static void i8xx_update_pll(struct intel_crtc *crtc, |
f47709a9 | 4599 | intel_clock_t *reduced_clock, |
eb1cbe48 DV |
4600 | int num_connectors) |
4601 | { | |
f47709a9 | 4602 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 4603 | struct drm_i915_private *dev_priv = dev->dev_private; |
dafd226c | 4604 | struct intel_encoder *encoder; |
f47709a9 | 4605 | int pipe = crtc->pipe; |
eb1cbe48 | 4606 | u32 dpll; |
f47709a9 | 4607 | struct dpll *clock = &crtc->config.dpll; |
eb1cbe48 | 4608 | |
f47709a9 | 4609 | i9xx_update_pll_dividers(crtc, reduced_clock); |
2a8f64ca | 4610 | |
eb1cbe48 DV |
4611 | dpll = DPLL_VGA_MODE_DIS; |
4612 | ||
f47709a9 | 4613 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) { |
eb1cbe48 DV |
4614 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
4615 | } else { | |
4616 | if (clock->p1 == 2) | |
4617 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
4618 | else | |
4619 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4620 | if (clock->p2 == 4) | |
4621 | dpll |= PLL_P2_DIVIDE_BY_4; | |
4622 | } | |
4623 | ||
f47709a9 | 4624 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
4625 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
4626 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4627 | else | |
4628 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4629 | ||
4630 | dpll |= DPLL_VCO_ENABLE; | |
4631 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4632 | POSTING_READ(DPLL(pipe)); | |
4633 | udelay(150); | |
4634 | ||
f47709a9 | 4635 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
dafd226c DV |
4636 | if (encoder->pre_pll_enable) |
4637 | encoder->pre_pll_enable(encoder); | |
eb1cbe48 | 4638 | |
5b5896e4 DV |
4639 | I915_WRITE(DPLL(pipe), dpll); |
4640 | ||
4641 | /* Wait for the clocks to stabilize. */ | |
4642 | POSTING_READ(DPLL(pipe)); | |
4643 | udelay(150); | |
4644 | ||
eb1cbe48 DV |
4645 | /* The pixel multiplier can only be updated once the |
4646 | * DPLL is enabled and the clocks are stable. | |
4647 | * | |
4648 | * So write it again. | |
4649 | */ | |
4650 | I915_WRITE(DPLL(pipe), dpll); | |
4651 | } | |
4652 | ||
8a654f3b | 4653 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc) |
b0e77b9c PZ |
4654 | { |
4655 | struct drm_device *dev = intel_crtc->base.dev; | |
4656 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4657 | enum pipe pipe = intel_crtc->pipe; | |
3b117c8f | 4658 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
8a654f3b DV |
4659 | struct drm_display_mode *adjusted_mode = |
4660 | &intel_crtc->config.adjusted_mode; | |
4661 | struct drm_display_mode *mode = &intel_crtc->config.requested_mode; | |
4d8a62ea DV |
4662 | uint32_t vsyncshift, crtc_vtotal, crtc_vblank_end; |
4663 | ||
4664 | /* We need to be careful not to changed the adjusted mode, for otherwise | |
4665 | * the hw state checker will get angry at the mismatch. */ | |
4666 | crtc_vtotal = adjusted_mode->crtc_vtotal; | |
4667 | crtc_vblank_end = adjusted_mode->crtc_vblank_end; | |
b0e77b9c PZ |
4668 | |
4669 | if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { | |
4670 | /* the chip adds 2 halflines automatically */ | |
4d8a62ea DV |
4671 | crtc_vtotal -= 1; |
4672 | crtc_vblank_end -= 1; | |
b0e77b9c PZ |
4673 | vsyncshift = adjusted_mode->crtc_hsync_start |
4674 | - adjusted_mode->crtc_htotal / 2; | |
4675 | } else { | |
4676 | vsyncshift = 0; | |
4677 | } | |
4678 | ||
4679 | if (INTEL_INFO(dev)->gen > 3) | |
fe2b8f9d | 4680 | I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift); |
b0e77b9c | 4681 | |
fe2b8f9d | 4682 | I915_WRITE(HTOTAL(cpu_transcoder), |
b0e77b9c PZ |
4683 | (adjusted_mode->crtc_hdisplay - 1) | |
4684 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
fe2b8f9d | 4685 | I915_WRITE(HBLANK(cpu_transcoder), |
b0e77b9c PZ |
4686 | (adjusted_mode->crtc_hblank_start - 1) | |
4687 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
fe2b8f9d | 4688 | I915_WRITE(HSYNC(cpu_transcoder), |
b0e77b9c PZ |
4689 | (adjusted_mode->crtc_hsync_start - 1) | |
4690 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
4691 | ||
fe2b8f9d | 4692 | I915_WRITE(VTOTAL(cpu_transcoder), |
b0e77b9c | 4693 | (adjusted_mode->crtc_vdisplay - 1) | |
4d8a62ea | 4694 | ((crtc_vtotal - 1) << 16)); |
fe2b8f9d | 4695 | I915_WRITE(VBLANK(cpu_transcoder), |
b0e77b9c | 4696 | (adjusted_mode->crtc_vblank_start - 1) | |
4d8a62ea | 4697 | ((crtc_vblank_end - 1) << 16)); |
fe2b8f9d | 4698 | I915_WRITE(VSYNC(cpu_transcoder), |
b0e77b9c PZ |
4699 | (adjusted_mode->crtc_vsync_start - 1) | |
4700 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
4701 | ||
b5e508d4 PZ |
4702 | /* Workaround: when the EDP input selection is B, the VTOTAL_B must be |
4703 | * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is | |
4704 | * documented on the DDI_FUNC_CTL register description, EDP Input Select | |
4705 | * bits. */ | |
4706 | if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP && | |
4707 | (pipe == PIPE_B || pipe == PIPE_C)) | |
4708 | I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder))); | |
4709 | ||
b0e77b9c PZ |
4710 | /* pipesrc controls the size that is scaled from, which should |
4711 | * always be the user's requested size. | |
4712 | */ | |
4713 | I915_WRITE(PIPESRC(pipe), | |
4714 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
4715 | } | |
4716 | ||
1bd1bd80 DV |
4717 | static void intel_get_pipe_timings(struct intel_crtc *crtc, |
4718 | struct intel_crtc_config *pipe_config) | |
4719 | { | |
4720 | struct drm_device *dev = crtc->base.dev; | |
4721 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4722 | enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; | |
4723 | uint32_t tmp; | |
4724 | ||
4725 | tmp = I915_READ(HTOTAL(cpu_transcoder)); | |
4726 | pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1; | |
4727 | pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1; | |
4728 | tmp = I915_READ(HBLANK(cpu_transcoder)); | |
4729 | pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1; | |
4730 | pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1; | |
4731 | tmp = I915_READ(HSYNC(cpu_transcoder)); | |
4732 | pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1; | |
4733 | pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1; | |
4734 | ||
4735 | tmp = I915_READ(VTOTAL(cpu_transcoder)); | |
4736 | pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1; | |
4737 | pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1; | |
4738 | tmp = I915_READ(VBLANK(cpu_transcoder)); | |
4739 | pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1; | |
4740 | pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1; | |
4741 | tmp = I915_READ(VSYNC(cpu_transcoder)); | |
4742 | pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1; | |
4743 | pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1; | |
4744 | ||
4745 | if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) { | |
4746 | pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE; | |
4747 | pipe_config->adjusted_mode.crtc_vtotal += 1; | |
4748 | pipe_config->adjusted_mode.crtc_vblank_end += 1; | |
4749 | } | |
4750 | ||
4751 | tmp = I915_READ(PIPESRC(crtc->pipe)); | |
4752 | pipe_config->requested_mode.vdisplay = (tmp & 0xffff) + 1; | |
4753 | pipe_config->requested_mode.hdisplay = ((tmp >> 16) & 0xffff) + 1; | |
4754 | } | |
4755 | ||
84b046f3 DV |
4756 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc) |
4757 | { | |
4758 | struct drm_device *dev = intel_crtc->base.dev; | |
4759 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4760 | uint32_t pipeconf; | |
4761 | ||
4762 | pipeconf = I915_READ(PIPECONF(intel_crtc->pipe)); | |
4763 | ||
4764 | if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) { | |
4765 | /* Enable pixel doubling when the dot clock is > 90% of the (display) | |
4766 | * core speed. | |
4767 | * | |
4768 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
4769 | * pipe == 0 check? | |
4770 | */ | |
4771 | if (intel_crtc->config.requested_mode.clock > | |
4772 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
4773 | pipeconf |= PIPECONF_DOUBLE_WIDE; | |
4774 | else | |
4775 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; | |
4776 | } | |
4777 | ||
ff9ce46e DV |
4778 | /* only g4x and later have fancy bpc/dither controls */ |
4779 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) { | |
4780 | pipeconf &= ~(PIPECONF_BPC_MASK | | |
4781 | PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
4782 | ||
4783 | /* Bspec claims that we can't use dithering for 30bpp pipes. */ | |
4784 | if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30) | |
4785 | pipeconf |= PIPECONF_DITHER_EN | | |
84b046f3 | 4786 | PIPECONF_DITHER_TYPE_SP; |
84b046f3 | 4787 | |
ff9ce46e DV |
4788 | switch (intel_crtc->config.pipe_bpp) { |
4789 | case 18: | |
4790 | pipeconf |= PIPECONF_6BPC; | |
4791 | break; | |
4792 | case 24: | |
4793 | pipeconf |= PIPECONF_8BPC; | |
4794 | break; | |
4795 | case 30: | |
4796 | pipeconf |= PIPECONF_10BPC; | |
4797 | break; | |
4798 | default: | |
4799 | /* Case prevented by intel_choose_pipe_bpp_dither. */ | |
4800 | BUG(); | |
84b046f3 DV |
4801 | } |
4802 | } | |
4803 | ||
4804 | if (HAS_PIPE_CXSR(dev)) { | |
4805 | if (intel_crtc->lowfreq_avail) { | |
4806 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); | |
4807 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; | |
4808 | } else { | |
4809 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); | |
4810 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; | |
4811 | } | |
4812 | } | |
4813 | ||
4814 | pipeconf &= ~PIPECONF_INTERLACE_MASK; | |
4815 | if (!IS_GEN2(dev) && | |
4816 | intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) | |
4817 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; | |
4818 | else | |
4819 | pipeconf |= PIPECONF_PROGRESSIVE; | |
4820 | ||
9c8e09b7 VS |
4821 | if (IS_VALLEYVIEW(dev)) { |
4822 | if (intel_crtc->config.limited_color_range) | |
4823 | pipeconf |= PIPECONF_COLOR_RANGE_SELECT; | |
4824 | else | |
4825 | pipeconf &= ~PIPECONF_COLOR_RANGE_SELECT; | |
4826 | } | |
4827 | ||
84b046f3 DV |
4828 | I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf); |
4829 | POSTING_READ(PIPECONF(intel_crtc->pipe)); | |
4830 | } | |
4831 | ||
f564048e | 4832 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
f564048e | 4833 | int x, int y, |
94352cf9 | 4834 | struct drm_framebuffer *fb) |
79e53945 JB |
4835 | { |
4836 | struct drm_device *dev = crtc->dev; | |
4837 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4838 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
b8cecdf5 | 4839 | struct drm_display_mode *mode = &intel_crtc->config.requested_mode; |
79e53945 | 4840 | int pipe = intel_crtc->pipe; |
80824003 | 4841 | int plane = intel_crtc->plane; |
c751ce4f | 4842 | int refclk, num_connectors = 0; |
652c393a | 4843 | intel_clock_t clock, reduced_clock; |
84b046f3 | 4844 | u32 dspcntr; |
a16af721 DV |
4845 | bool ok, has_reduced_clock = false; |
4846 | bool is_lvds = false; | |
5eddb70b | 4847 | struct intel_encoder *encoder; |
d4906093 | 4848 | const intel_limit_t *limit; |
5c3b82e2 | 4849 | int ret; |
79e53945 | 4850 | |
6c2b7c12 | 4851 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5eddb70b | 4852 | switch (encoder->type) { |
79e53945 JB |
4853 | case INTEL_OUTPUT_LVDS: |
4854 | is_lvds = true; | |
4855 | break; | |
79e53945 | 4856 | } |
43565a06 | 4857 | |
c751ce4f | 4858 | num_connectors++; |
79e53945 JB |
4859 | } |
4860 | ||
c65d77d8 | 4861 | refclk = i9xx_get_refclk(crtc, num_connectors); |
79e53945 | 4862 | |
d4906093 ML |
4863 | /* |
4864 | * Returns a set of divisors for the desired target clock with the given | |
4865 | * refclk, or FALSE. The returned values represent the clock equation: | |
4866 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4867 | */ | |
1b894b59 | 4868 | limit = intel_limit(crtc, refclk); |
ff9a6750 DV |
4869 | ok = dev_priv->display.find_dpll(limit, crtc, |
4870 | intel_crtc->config.port_clock, | |
ee9300bb DV |
4871 | refclk, NULL, &clock); |
4872 | if (!ok && !intel_crtc->config.clock_set) { | |
79e53945 | 4873 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
5c3b82e2 | 4874 | return -EINVAL; |
79e53945 JB |
4875 | } |
4876 | ||
cda4b7d3 | 4877 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4878 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4879 | |
ddc9003c | 4880 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4881 | /* |
4882 | * Ensure we match the reduced clock's P to the target clock. | |
4883 | * If the clocks don't match, we can't switch the display clock | |
4884 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4885 | * downclock feature. | |
4886 | */ | |
ee9300bb DV |
4887 | has_reduced_clock = |
4888 | dev_priv->display.find_dpll(limit, crtc, | |
5eddb70b | 4889 | dev_priv->lvds_downclock, |
ee9300bb | 4890 | refclk, &clock, |
5eddb70b | 4891 | &reduced_clock); |
7026d4ac | 4892 | } |
f47709a9 DV |
4893 | /* Compat-code for transition, will disappear. */ |
4894 | if (!intel_crtc->config.clock_set) { | |
4895 | intel_crtc->config.dpll.n = clock.n; | |
4896 | intel_crtc->config.dpll.m1 = clock.m1; | |
4897 | intel_crtc->config.dpll.m2 = clock.m2; | |
4898 | intel_crtc->config.dpll.p1 = clock.p1; | |
4899 | intel_crtc->config.dpll.p2 = clock.p2; | |
4900 | } | |
7026d4ac | 4901 | |
eb1cbe48 | 4902 | if (IS_GEN2(dev)) |
8a654f3b | 4903 | i8xx_update_pll(intel_crtc, |
2a8f64ca VP |
4904 | has_reduced_clock ? &reduced_clock : NULL, |
4905 | num_connectors); | |
a0c4da24 | 4906 | else if (IS_VALLEYVIEW(dev)) |
f47709a9 | 4907 | vlv_update_pll(intel_crtc); |
79e53945 | 4908 | else |
f47709a9 | 4909 | i9xx_update_pll(intel_crtc, |
eb1cbe48 | 4910 | has_reduced_clock ? &reduced_clock : NULL, |
89b667f8 | 4911 | num_connectors); |
79e53945 | 4912 | |
79e53945 JB |
4913 | /* Set up the display plane register */ |
4914 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4915 | ||
da6ecc5d JB |
4916 | if (!IS_VALLEYVIEW(dev)) { |
4917 | if (pipe == 0) | |
4918 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; | |
4919 | else | |
4920 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
4921 | } | |
79e53945 | 4922 | |
8a654f3b | 4923 | intel_set_pipe_timings(intel_crtc); |
5eddb70b CW |
4924 | |
4925 | /* pipesrc and dspsize control the size that is scaled from, | |
4926 | * which should always be the user's requested size. | |
79e53945 | 4927 | */ |
929c77fb EA |
4928 | I915_WRITE(DSPSIZE(plane), |
4929 | ((mode->vdisplay - 1) << 16) | | |
4930 | (mode->hdisplay - 1)); | |
4931 | I915_WRITE(DSPPOS(plane), 0); | |
2c07245f | 4932 | |
84b046f3 DV |
4933 | i9xx_set_pipeconf(intel_crtc); |
4934 | ||
f564048e EA |
4935 | I915_WRITE(DSPCNTR(plane), dspcntr); |
4936 | POSTING_READ(DSPCNTR(plane)); | |
4937 | ||
94352cf9 | 4938 | ret = intel_pipe_set_base(crtc, x, y, fb); |
f564048e EA |
4939 | |
4940 | intel_update_watermarks(dev); | |
4941 | ||
f564048e EA |
4942 | return ret; |
4943 | } | |
4944 | ||
2fa2fe9a DV |
4945 | static void i9xx_get_pfit_config(struct intel_crtc *crtc, |
4946 | struct intel_crtc_config *pipe_config) | |
4947 | { | |
4948 | struct drm_device *dev = crtc->base.dev; | |
4949 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4950 | uint32_t tmp; | |
4951 | ||
4952 | tmp = I915_READ(PFIT_CONTROL); | |
4953 | ||
4954 | if (INTEL_INFO(dev)->gen < 4) { | |
4955 | if (crtc->pipe != PIPE_B) | |
4956 | return; | |
4957 | ||
4958 | /* gen2/3 store dither state in pfit control, needs to match */ | |
4959 | pipe_config->gmch_pfit.control = tmp & PANEL_8TO6_DITHER_ENABLE; | |
4960 | } else { | |
4961 | if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT)) | |
4962 | return; | |
4963 | } | |
4964 | ||
4965 | if (!(tmp & PFIT_ENABLE)) | |
4966 | return; | |
4967 | ||
4968 | pipe_config->gmch_pfit.control = I915_READ(PFIT_CONTROL); | |
4969 | pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS); | |
4970 | if (INTEL_INFO(dev)->gen < 5) | |
4971 | pipe_config->gmch_pfit.lvds_border_bits = | |
4972 | I915_READ(LVDS) & LVDS_BORDER_ENABLE; | |
4973 | } | |
4974 | ||
0e8ffe1b DV |
4975 | static bool i9xx_get_pipe_config(struct intel_crtc *crtc, |
4976 | struct intel_crtc_config *pipe_config) | |
4977 | { | |
4978 | struct drm_device *dev = crtc->base.dev; | |
4979 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4980 | uint32_t tmp; | |
4981 | ||
eccb140b DV |
4982 | pipe_config->cpu_transcoder = crtc->pipe; |
4983 | ||
0e8ffe1b DV |
4984 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
4985 | if (!(tmp & PIPECONF_ENABLE)) | |
4986 | return false; | |
4987 | ||
1bd1bd80 DV |
4988 | intel_get_pipe_timings(crtc, pipe_config); |
4989 | ||
2fa2fe9a DV |
4990 | i9xx_get_pfit_config(crtc, pipe_config); |
4991 | ||
0e8ffe1b DV |
4992 | return true; |
4993 | } | |
4994 | ||
dde86e2d | 4995 | static void ironlake_init_pch_refclk(struct drm_device *dev) |
13d83a67 JB |
4996 | { |
4997 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4998 | struct drm_mode_config *mode_config = &dev->mode_config; | |
13d83a67 | 4999 | struct intel_encoder *encoder; |
74cfd7ac | 5000 | u32 val, final; |
13d83a67 | 5001 | bool has_lvds = false; |
199e5d79 | 5002 | bool has_cpu_edp = false; |
199e5d79 | 5003 | bool has_panel = false; |
99eb6a01 KP |
5004 | bool has_ck505 = false; |
5005 | bool can_ssc = false; | |
13d83a67 JB |
5006 | |
5007 | /* We need to take the global config into account */ | |
199e5d79 KP |
5008 | list_for_each_entry(encoder, &mode_config->encoder_list, |
5009 | base.head) { | |
5010 | switch (encoder->type) { | |
5011 | case INTEL_OUTPUT_LVDS: | |
5012 | has_panel = true; | |
5013 | has_lvds = true; | |
5014 | break; | |
5015 | case INTEL_OUTPUT_EDP: | |
5016 | has_panel = true; | |
2de6905f | 5017 | if (enc_to_dig_port(&encoder->base)->port == PORT_A) |
199e5d79 KP |
5018 | has_cpu_edp = true; |
5019 | break; | |
13d83a67 JB |
5020 | } |
5021 | } | |
5022 | ||
99eb6a01 | 5023 | if (HAS_PCH_IBX(dev)) { |
41aa3448 | 5024 | has_ck505 = dev_priv->vbt.display_clock_mode; |
99eb6a01 KP |
5025 | can_ssc = has_ck505; |
5026 | } else { | |
5027 | has_ck505 = false; | |
5028 | can_ssc = true; | |
5029 | } | |
5030 | ||
2de6905f ID |
5031 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n", |
5032 | has_panel, has_lvds, has_ck505); | |
13d83a67 JB |
5033 | |
5034 | /* Ironlake: try to setup display ref clock before DPLL | |
5035 | * enabling. This is only under driver's control after | |
5036 | * PCH B stepping, previous chipset stepping should be | |
5037 | * ignoring this setting. | |
5038 | */ | |
74cfd7ac CW |
5039 | val = I915_READ(PCH_DREF_CONTROL); |
5040 | ||
5041 | /* As we must carefully and slowly disable/enable each source in turn, | |
5042 | * compute the final state we want first and check if we need to | |
5043 | * make any changes at all. | |
5044 | */ | |
5045 | final = val; | |
5046 | final &= ~DREF_NONSPREAD_SOURCE_MASK; | |
5047 | if (has_ck505) | |
5048 | final |= DREF_NONSPREAD_CK505_ENABLE; | |
5049 | else | |
5050 | final |= DREF_NONSPREAD_SOURCE_ENABLE; | |
5051 | ||
5052 | final &= ~DREF_SSC_SOURCE_MASK; | |
5053 | final &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
5054 | final &= ~DREF_SSC1_ENABLE; | |
5055 | ||
5056 | if (has_panel) { | |
5057 | final |= DREF_SSC_SOURCE_ENABLE; | |
5058 | ||
5059 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
5060 | final |= DREF_SSC1_ENABLE; | |
5061 | ||
5062 | if (has_cpu_edp) { | |
5063 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
5064 | final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; | |
5065 | else | |
5066 | final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
5067 | } else | |
5068 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
5069 | } else { | |
5070 | final |= DREF_SSC_SOURCE_DISABLE; | |
5071 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
5072 | } | |
5073 | ||
5074 | if (final == val) | |
5075 | return; | |
5076 | ||
13d83a67 | 5077 | /* Always enable nonspread source */ |
74cfd7ac | 5078 | val &= ~DREF_NONSPREAD_SOURCE_MASK; |
13d83a67 | 5079 | |
99eb6a01 | 5080 | if (has_ck505) |
74cfd7ac | 5081 | val |= DREF_NONSPREAD_CK505_ENABLE; |
99eb6a01 | 5082 | else |
74cfd7ac | 5083 | val |= DREF_NONSPREAD_SOURCE_ENABLE; |
13d83a67 | 5084 | |
199e5d79 | 5085 | if (has_panel) { |
74cfd7ac CW |
5086 | val &= ~DREF_SSC_SOURCE_MASK; |
5087 | val |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 5088 | |
199e5d79 | 5089 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 5090 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 5091 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
74cfd7ac | 5092 | val |= DREF_SSC1_ENABLE; |
e77166b5 | 5093 | } else |
74cfd7ac | 5094 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 KP |
5095 | |
5096 | /* Get SSC going before enabling the outputs */ | |
74cfd7ac | 5097 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
5098 | POSTING_READ(PCH_DREF_CONTROL); |
5099 | udelay(200); | |
5100 | ||
74cfd7ac | 5101 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
13d83a67 JB |
5102 | |
5103 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 5104 | if (has_cpu_edp) { |
99eb6a01 | 5105 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 5106 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
74cfd7ac | 5107 | val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
199e5d79 | 5108 | } |
13d83a67 | 5109 | else |
74cfd7ac | 5110 | val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; |
199e5d79 | 5111 | } else |
74cfd7ac | 5112 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 5113 | |
74cfd7ac | 5114 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
5115 | POSTING_READ(PCH_DREF_CONTROL); |
5116 | udelay(200); | |
5117 | } else { | |
5118 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
5119 | ||
74cfd7ac | 5120 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
199e5d79 KP |
5121 | |
5122 | /* Turn off CPU output */ | |
74cfd7ac | 5123 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 5124 | |
74cfd7ac | 5125 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
5126 | POSTING_READ(PCH_DREF_CONTROL); |
5127 | udelay(200); | |
5128 | ||
5129 | /* Turn off the SSC source */ | |
74cfd7ac CW |
5130 | val &= ~DREF_SSC_SOURCE_MASK; |
5131 | val |= DREF_SSC_SOURCE_DISABLE; | |
199e5d79 KP |
5132 | |
5133 | /* Turn off SSC1 */ | |
74cfd7ac | 5134 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 | 5135 | |
74cfd7ac | 5136 | I915_WRITE(PCH_DREF_CONTROL, val); |
13d83a67 JB |
5137 | POSTING_READ(PCH_DREF_CONTROL); |
5138 | udelay(200); | |
5139 | } | |
74cfd7ac CW |
5140 | |
5141 | BUG_ON(val != final); | |
13d83a67 JB |
5142 | } |
5143 | ||
dde86e2d PZ |
5144 | /* Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O. */ |
5145 | static void lpt_init_pch_refclk(struct drm_device *dev) | |
5146 | { | |
5147 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5148 | struct drm_mode_config *mode_config = &dev->mode_config; | |
5149 | struct intel_encoder *encoder; | |
5150 | bool has_vga = false; | |
5151 | bool is_sdv = false; | |
5152 | u32 tmp; | |
5153 | ||
5154 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { | |
5155 | switch (encoder->type) { | |
5156 | case INTEL_OUTPUT_ANALOG: | |
5157 | has_vga = true; | |
5158 | break; | |
5159 | } | |
5160 | } | |
5161 | ||
5162 | if (!has_vga) | |
5163 | return; | |
5164 | ||
c00db246 DV |
5165 | mutex_lock(&dev_priv->dpio_lock); |
5166 | ||
dde86e2d PZ |
5167 | /* XXX: Rip out SDV support once Haswell ships for real. */ |
5168 | if (IS_HASWELL(dev) && (dev->pci_device & 0xFF00) == 0x0C00) | |
5169 | is_sdv = true; | |
5170 | ||
5171 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
5172 | tmp &= ~SBI_SSCCTL_DISABLE; | |
5173 | tmp |= SBI_SSCCTL_PATHALT; | |
5174 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
5175 | ||
5176 | udelay(24); | |
5177 | ||
5178 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
5179 | tmp &= ~SBI_SSCCTL_PATHALT; | |
5180 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
5181 | ||
5182 | if (!is_sdv) { | |
5183 | tmp = I915_READ(SOUTH_CHICKEN2); | |
5184 | tmp |= FDI_MPHY_IOSFSB_RESET_CTL; | |
5185 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
5186 | ||
5187 | if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) & | |
5188 | FDI_MPHY_IOSFSB_RESET_STATUS, 100)) | |
5189 | DRM_ERROR("FDI mPHY reset assert timeout\n"); | |
5190 | ||
5191 | tmp = I915_READ(SOUTH_CHICKEN2); | |
5192 | tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL; | |
5193 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
5194 | ||
5195 | if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) & | |
5196 | FDI_MPHY_IOSFSB_RESET_STATUS) == 0, | |
5197 | 100)) | |
5198 | DRM_ERROR("FDI mPHY reset de-assert timeout\n"); | |
5199 | } | |
5200 | ||
5201 | tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY); | |
5202 | tmp &= ~(0xFF << 24); | |
5203 | tmp |= (0x12 << 24); | |
5204 | intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY); | |
5205 | ||
dde86e2d PZ |
5206 | if (is_sdv) { |
5207 | tmp = intel_sbi_read(dev_priv, 0x800C, SBI_MPHY); | |
5208 | tmp |= 0x7FFF; | |
5209 | intel_sbi_write(dev_priv, 0x800C, tmp, SBI_MPHY); | |
5210 | } | |
5211 | ||
5212 | tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY); | |
5213 | tmp |= (1 << 11); | |
5214 | intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY); | |
5215 | ||
5216 | tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY); | |
5217 | tmp |= (1 << 11); | |
5218 | intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY); | |
5219 | ||
5220 | if (is_sdv) { | |
5221 | tmp = intel_sbi_read(dev_priv, 0x2038, SBI_MPHY); | |
5222 | tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16); | |
5223 | intel_sbi_write(dev_priv, 0x2038, tmp, SBI_MPHY); | |
5224 | ||
5225 | tmp = intel_sbi_read(dev_priv, 0x2138, SBI_MPHY); | |
5226 | tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16); | |
5227 | intel_sbi_write(dev_priv, 0x2138, tmp, SBI_MPHY); | |
5228 | ||
5229 | tmp = intel_sbi_read(dev_priv, 0x203C, SBI_MPHY); | |
5230 | tmp |= (0x3F << 8); | |
5231 | intel_sbi_write(dev_priv, 0x203C, tmp, SBI_MPHY); | |
5232 | ||
5233 | tmp = intel_sbi_read(dev_priv, 0x213C, SBI_MPHY); | |
5234 | tmp |= (0x3F << 8); | |
5235 | intel_sbi_write(dev_priv, 0x213C, tmp, SBI_MPHY); | |
5236 | } | |
5237 | ||
5238 | tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY); | |
5239 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
5240 | intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY); | |
5241 | ||
5242 | tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY); | |
5243 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
5244 | intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY); | |
5245 | ||
5246 | if (!is_sdv) { | |
5247 | tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY); | |
5248 | tmp &= ~(7 << 13); | |
5249 | tmp |= (5 << 13); | |
5250 | intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY); | |
5251 | ||
5252 | tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY); | |
5253 | tmp &= ~(7 << 13); | |
5254 | tmp |= (5 << 13); | |
5255 | intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY); | |
5256 | } | |
5257 | ||
5258 | tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY); | |
5259 | tmp &= ~0xFF; | |
5260 | tmp |= 0x1C; | |
5261 | intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY); | |
5262 | ||
5263 | tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY); | |
5264 | tmp &= ~0xFF; | |
5265 | tmp |= 0x1C; | |
5266 | intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY); | |
5267 | ||
5268 | tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY); | |
5269 | tmp &= ~(0xFF << 16); | |
5270 | tmp |= (0x1C << 16); | |
5271 | intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY); | |
5272 | ||
5273 | tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY); | |
5274 | tmp &= ~(0xFF << 16); | |
5275 | tmp |= (0x1C << 16); | |
5276 | intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY); | |
5277 | ||
5278 | if (!is_sdv) { | |
5279 | tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY); | |
5280 | tmp |= (1 << 27); | |
5281 | intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY); | |
5282 | ||
5283 | tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY); | |
5284 | tmp |= (1 << 27); | |
5285 | intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY); | |
5286 | ||
5287 | tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY); | |
5288 | tmp &= ~(0xF << 28); | |
5289 | tmp |= (4 << 28); | |
5290 | intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY); | |
5291 | ||
5292 | tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY); | |
5293 | tmp &= ~(0xF << 28); | |
5294 | tmp |= (4 << 28); | |
5295 | intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); | |
5296 | } | |
5297 | ||
5298 | /* ULT uses SBI_GEN0, but ULT doesn't have VGA, so we don't care. */ | |
5299 | tmp = intel_sbi_read(dev_priv, SBI_DBUFF0, SBI_ICLK); | |
5300 | tmp |= SBI_DBUFF0_ENABLE; | |
5301 | intel_sbi_write(dev_priv, SBI_DBUFF0, tmp, SBI_ICLK); | |
c00db246 DV |
5302 | |
5303 | mutex_unlock(&dev_priv->dpio_lock); | |
dde86e2d PZ |
5304 | } |
5305 | ||
5306 | /* | |
5307 | * Initialize reference clocks when the driver loads | |
5308 | */ | |
5309 | void intel_init_pch_refclk(struct drm_device *dev) | |
5310 | { | |
5311 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
5312 | ironlake_init_pch_refclk(dev); | |
5313 | else if (HAS_PCH_LPT(dev)) | |
5314 | lpt_init_pch_refclk(dev); | |
5315 | } | |
5316 | ||
d9d444cb JB |
5317 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
5318 | { | |
5319 | struct drm_device *dev = crtc->dev; | |
5320 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5321 | struct intel_encoder *encoder; | |
d9d444cb JB |
5322 | int num_connectors = 0; |
5323 | bool is_lvds = false; | |
5324 | ||
6c2b7c12 | 5325 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
d9d444cb JB |
5326 | switch (encoder->type) { |
5327 | case INTEL_OUTPUT_LVDS: | |
5328 | is_lvds = true; | |
5329 | break; | |
d9d444cb JB |
5330 | } |
5331 | num_connectors++; | |
5332 | } | |
5333 | ||
5334 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
5335 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
41aa3448 RV |
5336 | dev_priv->vbt.lvds_ssc_freq); |
5337 | return dev_priv->vbt.lvds_ssc_freq * 1000; | |
d9d444cb JB |
5338 | } |
5339 | ||
5340 | return 120000; | |
5341 | } | |
5342 | ||
6ff93609 | 5343 | static void ironlake_set_pipeconf(struct drm_crtc *crtc) |
79e53945 | 5344 | { |
c8203565 | 5345 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
79e53945 JB |
5346 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5347 | int pipe = intel_crtc->pipe; | |
c8203565 PZ |
5348 | uint32_t val; |
5349 | ||
5350 | val = I915_READ(PIPECONF(pipe)); | |
5351 | ||
dfd07d72 | 5352 | val &= ~PIPECONF_BPC_MASK; |
965e0c48 | 5353 | switch (intel_crtc->config.pipe_bpp) { |
c8203565 | 5354 | case 18: |
dfd07d72 | 5355 | val |= PIPECONF_6BPC; |
c8203565 PZ |
5356 | break; |
5357 | case 24: | |
dfd07d72 | 5358 | val |= PIPECONF_8BPC; |
c8203565 PZ |
5359 | break; |
5360 | case 30: | |
dfd07d72 | 5361 | val |= PIPECONF_10BPC; |
c8203565 PZ |
5362 | break; |
5363 | case 36: | |
dfd07d72 | 5364 | val |= PIPECONF_12BPC; |
c8203565 PZ |
5365 | break; |
5366 | default: | |
cc769b62 PZ |
5367 | /* Case prevented by intel_choose_pipe_bpp_dither. */ |
5368 | BUG(); | |
c8203565 PZ |
5369 | } |
5370 | ||
5371 | val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
d8b32247 | 5372 | if (intel_crtc->config.dither) |
c8203565 PZ |
5373 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
5374 | ||
5375 | val &= ~PIPECONF_INTERLACE_MASK; | |
6ff93609 | 5376 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
c8203565 PZ |
5377 | val |= PIPECONF_INTERLACED_ILK; |
5378 | else | |
5379 | val |= PIPECONF_PROGRESSIVE; | |
5380 | ||
50f3b016 | 5381 | if (intel_crtc->config.limited_color_range) |
3685a8f3 VS |
5382 | val |= PIPECONF_COLOR_RANGE_SELECT; |
5383 | else | |
5384 | val &= ~PIPECONF_COLOR_RANGE_SELECT; | |
5385 | ||
c8203565 PZ |
5386 | I915_WRITE(PIPECONF(pipe), val); |
5387 | POSTING_READ(PIPECONF(pipe)); | |
5388 | } | |
5389 | ||
86d3efce VS |
5390 | /* |
5391 | * Set up the pipe CSC unit. | |
5392 | * | |
5393 | * Currently only full range RGB to limited range RGB conversion | |
5394 | * is supported, but eventually this should handle various | |
5395 | * RGB<->YCbCr scenarios as well. | |
5396 | */ | |
50f3b016 | 5397 | static void intel_set_pipe_csc(struct drm_crtc *crtc) |
86d3efce VS |
5398 | { |
5399 | struct drm_device *dev = crtc->dev; | |
5400 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5401 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5402 | int pipe = intel_crtc->pipe; | |
5403 | uint16_t coeff = 0x7800; /* 1.0 */ | |
5404 | ||
5405 | /* | |
5406 | * TODO: Check what kind of values actually come out of the pipe | |
5407 | * with these coeff/postoff values and adjust to get the best | |
5408 | * accuracy. Perhaps we even need to take the bpc value into | |
5409 | * consideration. | |
5410 | */ | |
5411 | ||
50f3b016 | 5412 | if (intel_crtc->config.limited_color_range) |
86d3efce VS |
5413 | coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */ |
5414 | ||
5415 | /* | |
5416 | * GY/GU and RY/RU should be the other way around according | |
5417 | * to BSpec, but reality doesn't agree. Just set them up in | |
5418 | * a way that results in the correct picture. | |
5419 | */ | |
5420 | I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16); | |
5421 | I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0); | |
5422 | ||
5423 | I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff); | |
5424 | I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0); | |
5425 | ||
5426 | I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0); | |
5427 | I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16); | |
5428 | ||
5429 | I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0); | |
5430 | I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0); | |
5431 | I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0); | |
5432 | ||
5433 | if (INTEL_INFO(dev)->gen > 6) { | |
5434 | uint16_t postoff = 0; | |
5435 | ||
50f3b016 | 5436 | if (intel_crtc->config.limited_color_range) |
86d3efce VS |
5437 | postoff = (16 * (1 << 13) / 255) & 0x1fff; |
5438 | ||
5439 | I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff); | |
5440 | I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff); | |
5441 | I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff); | |
5442 | ||
5443 | I915_WRITE(PIPE_CSC_MODE(pipe), 0); | |
5444 | } else { | |
5445 | uint32_t mode = CSC_MODE_YUV_TO_RGB; | |
5446 | ||
50f3b016 | 5447 | if (intel_crtc->config.limited_color_range) |
86d3efce VS |
5448 | mode |= CSC_BLACK_SCREEN_OFFSET; |
5449 | ||
5450 | I915_WRITE(PIPE_CSC_MODE(pipe), mode); | |
5451 | } | |
5452 | } | |
5453 | ||
6ff93609 | 5454 | static void haswell_set_pipeconf(struct drm_crtc *crtc) |
ee2b0b38 PZ |
5455 | { |
5456 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
5457 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3b117c8f | 5458 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
ee2b0b38 PZ |
5459 | uint32_t val; |
5460 | ||
702e7a56 | 5461 | val = I915_READ(PIPECONF(cpu_transcoder)); |
ee2b0b38 PZ |
5462 | |
5463 | val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
d8b32247 | 5464 | if (intel_crtc->config.dither) |
ee2b0b38 PZ |
5465 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
5466 | ||
5467 | val &= ~PIPECONF_INTERLACE_MASK_HSW; | |
6ff93609 | 5468 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
ee2b0b38 PZ |
5469 | val |= PIPECONF_INTERLACED_ILK; |
5470 | else | |
5471 | val |= PIPECONF_PROGRESSIVE; | |
5472 | ||
702e7a56 PZ |
5473 | I915_WRITE(PIPECONF(cpu_transcoder), val); |
5474 | POSTING_READ(PIPECONF(cpu_transcoder)); | |
ee2b0b38 PZ |
5475 | } |
5476 | ||
6591c6e4 | 5477 | static bool ironlake_compute_clocks(struct drm_crtc *crtc, |
6591c6e4 PZ |
5478 | intel_clock_t *clock, |
5479 | bool *has_reduced_clock, | |
5480 | intel_clock_t *reduced_clock) | |
5481 | { | |
5482 | struct drm_device *dev = crtc->dev; | |
5483 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5484 | struct intel_encoder *intel_encoder; | |
5485 | int refclk; | |
d4906093 | 5486 | const intel_limit_t *limit; |
a16af721 | 5487 | bool ret, is_lvds = false; |
79e53945 | 5488 | |
6591c6e4 PZ |
5489 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5490 | switch (intel_encoder->type) { | |
79e53945 JB |
5491 | case INTEL_OUTPUT_LVDS: |
5492 | is_lvds = true; | |
5493 | break; | |
79e53945 JB |
5494 | } |
5495 | } | |
5496 | ||
d9d444cb | 5497 | refclk = ironlake_get_refclk(crtc); |
79e53945 | 5498 | |
d4906093 ML |
5499 | /* |
5500 | * Returns a set of divisors for the desired target clock with the given | |
5501 | * refclk, or FALSE. The returned values represent the clock equation: | |
5502 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
5503 | */ | |
1b894b59 | 5504 | limit = intel_limit(crtc, refclk); |
ff9a6750 DV |
5505 | ret = dev_priv->display.find_dpll(limit, crtc, |
5506 | to_intel_crtc(crtc)->config.port_clock, | |
ee9300bb | 5507 | refclk, NULL, clock); |
6591c6e4 PZ |
5508 | if (!ret) |
5509 | return false; | |
cda4b7d3 | 5510 | |
ddc9003c | 5511 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
5512 | /* |
5513 | * Ensure we match the reduced clock's P to the target clock. | |
5514 | * If the clocks don't match, we can't switch the display clock | |
5515 | * by using the FP0/FP1. In such case we will disable the LVDS | |
5516 | * downclock feature. | |
5517 | */ | |
ee9300bb DV |
5518 | *has_reduced_clock = |
5519 | dev_priv->display.find_dpll(limit, crtc, | |
5520 | dev_priv->lvds_downclock, | |
5521 | refclk, clock, | |
5522 | reduced_clock); | |
652c393a | 5523 | } |
61e9653f | 5524 | |
6591c6e4 PZ |
5525 | return true; |
5526 | } | |
5527 | ||
01a415fd DV |
5528 | static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev) |
5529 | { | |
5530 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5531 | uint32_t temp; | |
5532 | ||
5533 | temp = I915_READ(SOUTH_CHICKEN1); | |
5534 | if (temp & FDI_BC_BIFURCATION_SELECT) | |
5535 | return; | |
5536 | ||
5537 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); | |
5538 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
5539 | ||
5540 | temp |= FDI_BC_BIFURCATION_SELECT; | |
5541 | DRM_DEBUG_KMS("enabling fdi C rx\n"); | |
5542 | I915_WRITE(SOUTH_CHICKEN1, temp); | |
5543 | POSTING_READ(SOUTH_CHICKEN1); | |
5544 | } | |
5545 | ||
ebfd86fd DV |
5546 | static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc) |
5547 | { | |
5548 | struct drm_device *dev = intel_crtc->base.dev; | |
5549 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5550 | ||
5551 | switch (intel_crtc->pipe) { | |
5552 | case PIPE_A: | |
5553 | break; | |
5554 | case PIPE_B: | |
5555 | if (intel_crtc->config.fdi_lanes > 2) | |
5556 | WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT); | |
5557 | else | |
5558 | cpt_enable_fdi_bc_bifurcation(dev); | |
5559 | ||
5560 | break; | |
5561 | case PIPE_C: | |
01a415fd DV |
5562 | cpt_enable_fdi_bc_bifurcation(dev); |
5563 | ||
ebfd86fd | 5564 | break; |
01a415fd DV |
5565 | default: |
5566 | BUG(); | |
5567 | } | |
5568 | } | |
5569 | ||
d4b1931c PZ |
5570 | int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp) |
5571 | { | |
5572 | /* | |
5573 | * Account for spread spectrum to avoid | |
5574 | * oversubscribing the link. Max center spread | |
5575 | * is 2.5%; use 5% for safety's sake. | |
5576 | */ | |
5577 | u32 bps = target_clock * bpp * 21 / 20; | |
5578 | return bps / (link_bw * 8) + 1; | |
5579 | } | |
5580 | ||
7429e9d4 DV |
5581 | static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor) |
5582 | { | |
5583 | return i9xx_dpll_compute_m(dpll) < factor * dpll->n; | |
5584 | } | |
5585 | ||
de13a2e3 | 5586 | static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, |
7429e9d4 | 5587 | u32 *fp, |
9a7c7890 | 5588 | intel_clock_t *reduced_clock, u32 *fp2) |
79e53945 | 5589 | { |
de13a2e3 | 5590 | struct drm_crtc *crtc = &intel_crtc->base; |
79e53945 JB |
5591 | struct drm_device *dev = crtc->dev; |
5592 | struct drm_i915_private *dev_priv = dev->dev_private; | |
de13a2e3 PZ |
5593 | struct intel_encoder *intel_encoder; |
5594 | uint32_t dpll; | |
6cc5f341 | 5595 | int factor, num_connectors = 0; |
09ede541 | 5596 | bool is_lvds = false, is_sdvo = false; |
79e53945 | 5597 | |
de13a2e3 PZ |
5598 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5599 | switch (intel_encoder->type) { | |
79e53945 JB |
5600 | case INTEL_OUTPUT_LVDS: |
5601 | is_lvds = true; | |
5602 | break; | |
5603 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 5604 | case INTEL_OUTPUT_HDMI: |
79e53945 JB |
5605 | is_sdvo = true; |
5606 | break; | |
79e53945 | 5607 | } |
43565a06 | 5608 | |
c751ce4f | 5609 | num_connectors++; |
79e53945 | 5610 | } |
79e53945 | 5611 | |
c1858123 | 5612 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
5613 | factor = 21; |
5614 | if (is_lvds) { | |
5615 | if ((intel_panel_use_ssc(dev_priv) && | |
41aa3448 | 5616 | dev_priv->vbt.lvds_ssc_freq == 100) || |
f0b44056 | 5617 | (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev))) |
8febb297 | 5618 | factor = 25; |
09ede541 | 5619 | } else if (intel_crtc->config.sdvo_tv_clock) |
8febb297 | 5620 | factor = 20; |
c1858123 | 5621 | |
7429e9d4 | 5622 | if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor)) |
7d0ac5b7 | 5623 | *fp |= FP_CB_TUNE; |
2c07245f | 5624 | |
9a7c7890 DV |
5625 | if (fp2 && (reduced_clock->m < factor * reduced_clock->n)) |
5626 | *fp2 |= FP_CB_TUNE; | |
5627 | ||
5eddb70b | 5628 | dpll = 0; |
2c07245f | 5629 | |
a07d6787 EA |
5630 | if (is_lvds) |
5631 | dpll |= DPLLB_MODE_LVDS; | |
5632 | else | |
5633 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
198a037f | 5634 | |
ef1b460d DV |
5635 | dpll |= (intel_crtc->config.pixel_multiplier - 1) |
5636 | << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
198a037f DV |
5637 | |
5638 | if (is_sdvo) | |
5639 | dpll |= DPLL_DVO_HIGH_SPEED; | |
9566e9af | 5640 | if (intel_crtc->config.has_dp_encoder) |
a07d6787 | 5641 | dpll |= DPLL_DVO_HIGH_SPEED; |
79e53945 | 5642 | |
a07d6787 | 5643 | /* compute bitmask from p1 value */ |
7429e9d4 | 5644 | dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
a07d6787 | 5645 | /* also FPA1 */ |
7429e9d4 | 5646 | dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
a07d6787 | 5647 | |
7429e9d4 | 5648 | switch (intel_crtc->config.dpll.p2) { |
a07d6787 EA |
5649 | case 5: |
5650 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
5651 | break; | |
5652 | case 7: | |
5653 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
5654 | break; | |
5655 | case 10: | |
5656 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
5657 | break; | |
5658 | case 14: | |
5659 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
5660 | break; | |
79e53945 JB |
5661 | } |
5662 | ||
b4c09f3b | 5663 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 5664 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
5665 | else |
5666 | dpll |= PLL_REF_INPUT_DREFCLK; | |
5667 | ||
de13a2e3 PZ |
5668 | return dpll; |
5669 | } | |
5670 | ||
5671 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, | |
de13a2e3 PZ |
5672 | int x, int y, |
5673 | struct drm_framebuffer *fb) | |
5674 | { | |
5675 | struct drm_device *dev = crtc->dev; | |
5676 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5677 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5678 | int pipe = intel_crtc->pipe; | |
5679 | int plane = intel_crtc->plane; | |
5680 | int num_connectors = 0; | |
5681 | intel_clock_t clock, reduced_clock; | |
cbbab5bd | 5682 | u32 dpll = 0, fp = 0, fp2 = 0; |
e2f12b07 | 5683 | bool ok, has_reduced_clock = false; |
8b47047b | 5684 | bool is_lvds = false; |
de13a2e3 | 5685 | struct intel_encoder *encoder; |
de13a2e3 | 5686 | int ret; |
de13a2e3 PZ |
5687 | |
5688 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
5689 | switch (encoder->type) { | |
5690 | case INTEL_OUTPUT_LVDS: | |
5691 | is_lvds = true; | |
5692 | break; | |
de13a2e3 PZ |
5693 | } |
5694 | ||
5695 | num_connectors++; | |
a07d6787 | 5696 | } |
79e53945 | 5697 | |
5dc5298b PZ |
5698 | WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)), |
5699 | "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev)); | |
a07d6787 | 5700 | |
ff9a6750 | 5701 | ok = ironlake_compute_clocks(crtc, &clock, |
de13a2e3 | 5702 | &has_reduced_clock, &reduced_clock); |
ee9300bb | 5703 | if (!ok && !intel_crtc->config.clock_set) { |
de13a2e3 PZ |
5704 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
5705 | return -EINVAL; | |
79e53945 | 5706 | } |
f47709a9 DV |
5707 | /* Compat-code for transition, will disappear. */ |
5708 | if (!intel_crtc->config.clock_set) { | |
5709 | intel_crtc->config.dpll.n = clock.n; | |
5710 | intel_crtc->config.dpll.m1 = clock.m1; | |
5711 | intel_crtc->config.dpll.m2 = clock.m2; | |
5712 | intel_crtc->config.dpll.p1 = clock.p1; | |
5713 | intel_crtc->config.dpll.p2 = clock.p2; | |
5714 | } | |
79e53945 | 5715 | |
de13a2e3 PZ |
5716 | /* Ensure that the cursor is valid for the new mode before changing... */ |
5717 | intel_crtc_update_cursor(crtc, true); | |
5718 | ||
5dc5298b | 5719 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ |
8b47047b | 5720 | if (intel_crtc->config.has_pch_encoder) { |
ee7b9f93 | 5721 | struct intel_pch_pll *pll; |
4b645f14 | 5722 | |
7429e9d4 | 5723 | fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll); |
cbbab5bd | 5724 | if (has_reduced_clock) |
7429e9d4 | 5725 | fp2 = i9xx_dpll_compute_fp(&reduced_clock); |
cbbab5bd | 5726 | |
7429e9d4 | 5727 | dpll = ironlake_compute_dpll(intel_crtc, |
cbbab5bd DV |
5728 | &fp, &reduced_clock, |
5729 | has_reduced_clock ? &fp2 : NULL); | |
5730 | ||
ee7b9f93 JB |
5731 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); |
5732 | if (pll == NULL) { | |
84f44ce7 VS |
5733 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n", |
5734 | pipe_name(pipe)); | |
4b645f14 JB |
5735 | return -EINVAL; |
5736 | } | |
ee7b9f93 JB |
5737 | } else |
5738 | intel_put_pch_pll(intel_crtc); | |
79e53945 | 5739 | |
03afc4a2 DV |
5740 | if (intel_crtc->config.has_dp_encoder) |
5741 | intel_dp_set_m_n(intel_crtc); | |
79e53945 | 5742 | |
dafd226c DV |
5743 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5744 | if (encoder->pre_pll_enable) | |
5745 | encoder->pre_pll_enable(encoder); | |
79e53945 | 5746 | |
ee7b9f93 JB |
5747 | if (intel_crtc->pch_pll) { |
5748 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5eddb70b | 5749 | |
32f9d658 | 5750 | /* Wait for the clocks to stabilize. */ |
ee7b9f93 | 5751 | POSTING_READ(intel_crtc->pch_pll->pll_reg); |
32f9d658 ZW |
5752 | udelay(150); |
5753 | ||
8febb297 EA |
5754 | /* The pixel multiplier can only be updated once the |
5755 | * DPLL is enabled and the clocks are stable. | |
5756 | * | |
5757 | * So write it again. | |
5758 | */ | |
ee7b9f93 | 5759 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); |
79e53945 | 5760 | } |
79e53945 | 5761 | |
5eddb70b | 5762 | intel_crtc->lowfreq_avail = false; |
ee7b9f93 | 5763 | if (intel_crtc->pch_pll) { |
4b645f14 | 5764 | if (is_lvds && has_reduced_clock && i915_powersave) { |
ee7b9f93 | 5765 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); |
4b645f14 | 5766 | intel_crtc->lowfreq_avail = true; |
4b645f14 | 5767 | } else { |
ee7b9f93 | 5768 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); |
652c393a JB |
5769 | } |
5770 | } | |
5771 | ||
8a654f3b | 5772 | intel_set_pipe_timings(intel_crtc); |
5eddb70b | 5773 | |
ca3a0ff8 | 5774 | if (intel_crtc->config.has_pch_encoder) { |
ca3a0ff8 DV |
5775 | intel_cpu_transcoder_set_m_n(intel_crtc, |
5776 | &intel_crtc->config.fdi_m_n); | |
5777 | } | |
2c07245f | 5778 | |
ebfd86fd DV |
5779 | if (IS_IVYBRIDGE(dev)) |
5780 | ivybridge_update_fdi_bc_bifurcation(intel_crtc); | |
2c07245f | 5781 | |
6ff93609 | 5782 | ironlake_set_pipeconf(crtc); |
79e53945 | 5783 | |
a1f9e77e PZ |
5784 | /* Set up the display plane register */ |
5785 | I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE); | |
b24e7179 | 5786 | POSTING_READ(DSPCNTR(plane)); |
79e53945 | 5787 | |
94352cf9 | 5788 | ret = intel_pipe_set_base(crtc, x, y, fb); |
7662c8bd SL |
5789 | |
5790 | intel_update_watermarks(dev); | |
5791 | ||
1857e1da | 5792 | return ret; |
79e53945 JB |
5793 | } |
5794 | ||
72419203 DV |
5795 | static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc, |
5796 | struct intel_crtc_config *pipe_config) | |
5797 | { | |
5798 | struct drm_device *dev = crtc->base.dev; | |
5799 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5800 | enum transcoder transcoder = pipe_config->cpu_transcoder; | |
5801 | ||
5802 | pipe_config->fdi_m_n.link_m = I915_READ(PIPE_LINK_M1(transcoder)); | |
5803 | pipe_config->fdi_m_n.link_n = I915_READ(PIPE_LINK_N1(transcoder)); | |
5804 | pipe_config->fdi_m_n.gmch_m = I915_READ(PIPE_DATA_M1(transcoder)) | |
5805 | & ~TU_SIZE_MASK; | |
5806 | pipe_config->fdi_m_n.gmch_n = I915_READ(PIPE_DATA_N1(transcoder)); | |
5807 | pipe_config->fdi_m_n.tu = ((I915_READ(PIPE_DATA_M1(transcoder)) | |
5808 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
5809 | } | |
5810 | ||
2fa2fe9a DV |
5811 | static void ironlake_get_pfit_config(struct intel_crtc *crtc, |
5812 | struct intel_crtc_config *pipe_config) | |
5813 | { | |
5814 | struct drm_device *dev = crtc->base.dev; | |
5815 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5816 | uint32_t tmp; | |
5817 | ||
5818 | tmp = I915_READ(PF_CTL(crtc->pipe)); | |
5819 | ||
5820 | if (tmp & PF_ENABLE) { | |
5821 | pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe)); | |
5822 | pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe)); | |
cb8b2a30 DV |
5823 | |
5824 | /* We currently do not free assignements of panel fitters on | |
5825 | * ivb/hsw (since we don't use the higher upscaling modes which | |
5826 | * differentiates them) so just WARN about this case for now. */ | |
5827 | if (IS_GEN7(dev)) { | |
5828 | WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) != | |
5829 | PF_PIPE_SEL_IVB(crtc->pipe)); | |
5830 | } | |
2fa2fe9a DV |
5831 | } |
5832 | } | |
5833 | ||
0e8ffe1b DV |
5834 | static bool ironlake_get_pipe_config(struct intel_crtc *crtc, |
5835 | struct intel_crtc_config *pipe_config) | |
5836 | { | |
5837 | struct drm_device *dev = crtc->base.dev; | |
5838 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5839 | uint32_t tmp; | |
5840 | ||
eccb140b DV |
5841 | pipe_config->cpu_transcoder = crtc->pipe; |
5842 | ||
0e8ffe1b DV |
5843 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
5844 | if (!(tmp & PIPECONF_ENABLE)) | |
5845 | return false; | |
5846 | ||
ab9412ba | 5847 | if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) { |
88adfff1 DV |
5848 | pipe_config->has_pch_encoder = true; |
5849 | ||
627eb5a3 DV |
5850 | tmp = I915_READ(FDI_RX_CTL(crtc->pipe)); |
5851 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
5852 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
72419203 DV |
5853 | |
5854 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
627eb5a3 DV |
5855 | } |
5856 | ||
1bd1bd80 DV |
5857 | intel_get_pipe_timings(crtc, pipe_config); |
5858 | ||
2fa2fe9a DV |
5859 | ironlake_get_pfit_config(crtc, pipe_config); |
5860 | ||
0e8ffe1b DV |
5861 | return true; |
5862 | } | |
5863 | ||
d6dd9eb1 DV |
5864 | static void haswell_modeset_global_resources(struct drm_device *dev) |
5865 | { | |
d6dd9eb1 DV |
5866 | bool enable = false; |
5867 | struct intel_crtc *crtc; | |
d6dd9eb1 DV |
5868 | |
5869 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) { | |
e7a639c4 DV |
5870 | if (!crtc->base.enabled) |
5871 | continue; | |
d6dd9eb1 | 5872 | |
e7a639c4 DV |
5873 | if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.size || |
5874 | crtc->config.cpu_transcoder != TRANSCODER_EDP) | |
d6dd9eb1 DV |
5875 | enable = true; |
5876 | } | |
5877 | ||
d6dd9eb1 DV |
5878 | intel_set_power_well(dev, enable); |
5879 | } | |
5880 | ||
09b4ddf9 | 5881 | static int haswell_crtc_mode_set(struct drm_crtc *crtc, |
09b4ddf9 PZ |
5882 | int x, int y, |
5883 | struct drm_framebuffer *fb) | |
5884 | { | |
5885 | struct drm_device *dev = crtc->dev; | |
5886 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5887 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
09b4ddf9 | 5888 | int plane = intel_crtc->plane; |
09b4ddf9 | 5889 | int ret; |
09b4ddf9 | 5890 | |
ff9a6750 | 5891 | if (!intel_ddi_pll_mode_set(crtc)) |
6441ab5f PZ |
5892 | return -EINVAL; |
5893 | ||
09b4ddf9 PZ |
5894 | /* Ensure that the cursor is valid for the new mode before changing... */ |
5895 | intel_crtc_update_cursor(crtc, true); | |
5896 | ||
03afc4a2 DV |
5897 | if (intel_crtc->config.has_dp_encoder) |
5898 | intel_dp_set_m_n(intel_crtc); | |
09b4ddf9 PZ |
5899 | |
5900 | intel_crtc->lowfreq_avail = false; | |
09b4ddf9 | 5901 | |
8a654f3b | 5902 | intel_set_pipe_timings(intel_crtc); |
09b4ddf9 | 5903 | |
ca3a0ff8 | 5904 | if (intel_crtc->config.has_pch_encoder) { |
ca3a0ff8 DV |
5905 | intel_cpu_transcoder_set_m_n(intel_crtc, |
5906 | &intel_crtc->config.fdi_m_n); | |
5907 | } | |
09b4ddf9 | 5908 | |
6ff93609 | 5909 | haswell_set_pipeconf(crtc); |
09b4ddf9 | 5910 | |
50f3b016 | 5911 | intel_set_pipe_csc(crtc); |
86d3efce | 5912 | |
09b4ddf9 | 5913 | /* Set up the display plane register */ |
86d3efce | 5914 | I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE); |
09b4ddf9 PZ |
5915 | POSTING_READ(DSPCNTR(plane)); |
5916 | ||
5917 | ret = intel_pipe_set_base(crtc, x, y, fb); | |
5918 | ||
5919 | intel_update_watermarks(dev); | |
5920 | ||
1f803ee5 | 5921 | return ret; |
79e53945 JB |
5922 | } |
5923 | ||
0e8ffe1b DV |
5924 | static bool haswell_get_pipe_config(struct intel_crtc *crtc, |
5925 | struct intel_crtc_config *pipe_config) | |
5926 | { | |
5927 | struct drm_device *dev = crtc->base.dev; | |
5928 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa2fe9a | 5929 | enum intel_display_power_domain pfit_domain; |
0e8ffe1b DV |
5930 | uint32_t tmp; |
5931 | ||
eccb140b DV |
5932 | pipe_config->cpu_transcoder = crtc->pipe; |
5933 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); | |
5934 | if (tmp & TRANS_DDI_FUNC_ENABLE) { | |
5935 | enum pipe trans_edp_pipe; | |
5936 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { | |
5937 | default: | |
5938 | WARN(1, "unknown pipe linked to edp transcoder\n"); | |
5939 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
5940 | case TRANS_DDI_EDP_INPUT_A_ON: | |
5941 | trans_edp_pipe = PIPE_A; | |
5942 | break; | |
5943 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
5944 | trans_edp_pipe = PIPE_B; | |
5945 | break; | |
5946 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
5947 | trans_edp_pipe = PIPE_C; | |
5948 | break; | |
5949 | } | |
5950 | ||
5951 | if (trans_edp_pipe == crtc->pipe) | |
5952 | pipe_config->cpu_transcoder = TRANSCODER_EDP; | |
5953 | } | |
5954 | ||
b97186f0 | 5955 | if (!intel_display_power_enabled(dev, |
eccb140b | 5956 | POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder))) |
2bfce950 PZ |
5957 | return false; |
5958 | ||
eccb140b | 5959 | tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder)); |
0e8ffe1b DV |
5960 | if (!(tmp & PIPECONF_ENABLE)) |
5961 | return false; | |
5962 | ||
88adfff1 | 5963 | /* |
f196e6be | 5964 | * Haswell has only FDI/PCH transcoder A. It is which is connected to |
88adfff1 DV |
5965 | * DDI E. So just check whether this pipe is wired to DDI E and whether |
5966 | * the PCH transcoder is on. | |
5967 | */ | |
eccb140b | 5968 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder)); |
88adfff1 | 5969 | if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) && |
ab9412ba | 5970 | I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) { |
88adfff1 DV |
5971 | pipe_config->has_pch_encoder = true; |
5972 | ||
627eb5a3 DV |
5973 | tmp = I915_READ(FDI_RX_CTL(PIPE_A)); |
5974 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
5975 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
72419203 DV |
5976 | |
5977 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
627eb5a3 DV |
5978 | } |
5979 | ||
1bd1bd80 DV |
5980 | intel_get_pipe_timings(crtc, pipe_config); |
5981 | ||
2fa2fe9a DV |
5982 | pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe); |
5983 | if (intel_display_power_enabled(dev, pfit_domain)) | |
5984 | ironlake_get_pfit_config(crtc, pipe_config); | |
5985 | ||
42db64ef PZ |
5986 | pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) && |
5987 | (I915_READ(IPS_CTL) & IPS_ENABLE); | |
5988 | ||
0e8ffe1b DV |
5989 | return true; |
5990 | } | |
5991 | ||
f564048e | 5992 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
f564048e | 5993 | int x, int y, |
94352cf9 | 5994 | struct drm_framebuffer *fb) |
f564048e EA |
5995 | { |
5996 | struct drm_device *dev = crtc->dev; | |
5997 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9256aa19 DV |
5998 | struct drm_encoder_helper_funcs *encoder_funcs; |
5999 | struct intel_encoder *encoder; | |
0b701d27 | 6000 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
b8cecdf5 DV |
6001 | struct drm_display_mode *adjusted_mode = |
6002 | &intel_crtc->config.adjusted_mode; | |
6003 | struct drm_display_mode *mode = &intel_crtc->config.requested_mode; | |
0b701d27 | 6004 | int pipe = intel_crtc->pipe; |
f564048e EA |
6005 | int ret; |
6006 | ||
0b701d27 | 6007 | drm_vblank_pre_modeset(dev, pipe); |
7662c8bd | 6008 | |
b8cecdf5 DV |
6009 | ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb); |
6010 | ||
79e53945 | 6011 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 6012 | |
9256aa19 DV |
6013 | if (ret != 0) |
6014 | return ret; | |
6015 | ||
6016 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
6017 | DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", | |
6018 | encoder->base.base.id, | |
6019 | drm_get_encoder_name(&encoder->base), | |
6020 | mode->base.id, mode->name); | |
6cc5f341 DV |
6021 | if (encoder->mode_set) { |
6022 | encoder->mode_set(encoder); | |
6023 | } else { | |
6024 | encoder_funcs = encoder->base.helper_private; | |
6025 | encoder_funcs->mode_set(&encoder->base, mode, adjusted_mode); | |
6026 | } | |
9256aa19 DV |
6027 | } |
6028 | ||
6029 | return 0; | |
79e53945 JB |
6030 | } |
6031 | ||
3a9627f4 WF |
6032 | static bool intel_eld_uptodate(struct drm_connector *connector, |
6033 | int reg_eldv, uint32_t bits_eldv, | |
6034 | int reg_elda, uint32_t bits_elda, | |
6035 | int reg_edid) | |
6036 | { | |
6037 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
6038 | uint8_t *eld = connector->eld; | |
6039 | uint32_t i; | |
6040 | ||
6041 | i = I915_READ(reg_eldv); | |
6042 | i &= bits_eldv; | |
6043 | ||
6044 | if (!eld[0]) | |
6045 | return !i; | |
6046 | ||
6047 | if (!i) | |
6048 | return false; | |
6049 | ||
6050 | i = I915_READ(reg_elda); | |
6051 | i &= ~bits_elda; | |
6052 | I915_WRITE(reg_elda, i); | |
6053 | ||
6054 | for (i = 0; i < eld[2]; i++) | |
6055 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) | |
6056 | return false; | |
6057 | ||
6058 | return true; | |
6059 | } | |
6060 | ||
e0dac65e WF |
6061 | static void g4x_write_eld(struct drm_connector *connector, |
6062 | struct drm_crtc *crtc) | |
6063 | { | |
6064 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
6065 | uint8_t *eld = connector->eld; | |
6066 | uint32_t eldv; | |
6067 | uint32_t len; | |
6068 | uint32_t i; | |
6069 | ||
6070 | i = I915_READ(G4X_AUD_VID_DID); | |
6071 | ||
6072 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) | |
6073 | eldv = G4X_ELDV_DEVCL_DEVBLC; | |
6074 | else | |
6075 | eldv = G4X_ELDV_DEVCTG; | |
6076 | ||
3a9627f4 WF |
6077 | if (intel_eld_uptodate(connector, |
6078 | G4X_AUD_CNTL_ST, eldv, | |
6079 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, | |
6080 | G4X_HDMIW_HDMIEDID)) | |
6081 | return; | |
6082 | ||
e0dac65e WF |
6083 | i = I915_READ(G4X_AUD_CNTL_ST); |
6084 | i &= ~(eldv | G4X_ELD_ADDR); | |
6085 | len = (i >> 9) & 0x1f; /* ELD buffer size */ | |
6086 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
6087 | ||
6088 | if (!eld[0]) | |
6089 | return; | |
6090 | ||
6091 | len = min_t(uint8_t, eld[2], len); | |
6092 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
6093 | for (i = 0; i < len; i++) | |
6094 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); | |
6095 | ||
6096 | i = I915_READ(G4X_AUD_CNTL_ST); | |
6097 | i |= eldv; | |
6098 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
6099 | } | |
6100 | ||
83358c85 WX |
6101 | static void haswell_write_eld(struct drm_connector *connector, |
6102 | struct drm_crtc *crtc) | |
6103 | { | |
6104 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
6105 | uint8_t *eld = connector->eld; | |
6106 | struct drm_device *dev = crtc->dev; | |
7b9f35a6 | 6107 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
83358c85 WX |
6108 | uint32_t eldv; |
6109 | uint32_t i; | |
6110 | int len; | |
6111 | int pipe = to_intel_crtc(crtc)->pipe; | |
6112 | int tmp; | |
6113 | ||
6114 | int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe); | |
6115 | int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe); | |
6116 | int aud_config = HSW_AUD_CFG(pipe); | |
6117 | int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD; | |
6118 | ||
6119 | ||
6120 | DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n"); | |
6121 | ||
6122 | /* Audio output enable */ | |
6123 | DRM_DEBUG_DRIVER("HDMI audio: enable codec\n"); | |
6124 | tmp = I915_READ(aud_cntrl_st2); | |
6125 | tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4)); | |
6126 | I915_WRITE(aud_cntrl_st2, tmp); | |
6127 | ||
6128 | /* Wait for 1 vertical blank */ | |
6129 | intel_wait_for_vblank(dev, pipe); | |
6130 | ||
6131 | /* Set ELD valid state */ | |
6132 | tmp = I915_READ(aud_cntrl_st2); | |
6133 | DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp); | |
6134 | tmp |= (AUDIO_ELD_VALID_A << (pipe * 4)); | |
6135 | I915_WRITE(aud_cntrl_st2, tmp); | |
6136 | tmp = I915_READ(aud_cntrl_st2); | |
6137 | DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp); | |
6138 | ||
6139 | /* Enable HDMI mode */ | |
6140 | tmp = I915_READ(aud_config); | |
6141 | DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp); | |
6142 | /* clear N_programing_enable and N_value_index */ | |
6143 | tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE); | |
6144 | I915_WRITE(aud_config, tmp); | |
6145 | ||
6146 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); | |
6147 | ||
6148 | eldv = AUDIO_ELD_VALID_A << (pipe * 4); | |
7b9f35a6 | 6149 | intel_crtc->eld_vld = true; |
83358c85 WX |
6150 | |
6151 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { | |
6152 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
6153 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
6154 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ | |
6155 | } else | |
6156 | I915_WRITE(aud_config, 0); | |
6157 | ||
6158 | if (intel_eld_uptodate(connector, | |
6159 | aud_cntrl_st2, eldv, | |
6160 | aud_cntl_st, IBX_ELD_ADDRESS, | |
6161 | hdmiw_hdmiedid)) | |
6162 | return; | |
6163 | ||
6164 | i = I915_READ(aud_cntrl_st2); | |
6165 | i &= ~eldv; | |
6166 | I915_WRITE(aud_cntrl_st2, i); | |
6167 | ||
6168 | if (!eld[0]) | |
6169 | return; | |
6170 | ||
6171 | i = I915_READ(aud_cntl_st); | |
6172 | i &= ~IBX_ELD_ADDRESS; | |
6173 | I915_WRITE(aud_cntl_st, i); | |
6174 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ | |
6175 | DRM_DEBUG_DRIVER("port num:%d\n", i); | |
6176 | ||
6177 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
6178 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
6179 | for (i = 0; i < len; i++) | |
6180 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
6181 | ||
6182 | i = I915_READ(aud_cntrl_st2); | |
6183 | i |= eldv; | |
6184 | I915_WRITE(aud_cntrl_st2, i); | |
6185 | ||
6186 | } | |
6187 | ||
e0dac65e WF |
6188 | static void ironlake_write_eld(struct drm_connector *connector, |
6189 | struct drm_crtc *crtc) | |
6190 | { | |
6191 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
6192 | uint8_t *eld = connector->eld; | |
6193 | uint32_t eldv; | |
6194 | uint32_t i; | |
6195 | int len; | |
6196 | int hdmiw_hdmiedid; | |
b6daa025 | 6197 | int aud_config; |
e0dac65e WF |
6198 | int aud_cntl_st; |
6199 | int aud_cntrl_st2; | |
9b138a83 | 6200 | int pipe = to_intel_crtc(crtc)->pipe; |
e0dac65e | 6201 | |
b3f33cbf | 6202 | if (HAS_PCH_IBX(connector->dev)) { |
9b138a83 WX |
6203 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe); |
6204 | aud_config = IBX_AUD_CFG(pipe); | |
6205 | aud_cntl_st = IBX_AUD_CNTL_ST(pipe); | |
1202b4c6 | 6206 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; |
e0dac65e | 6207 | } else { |
9b138a83 WX |
6208 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe); |
6209 | aud_config = CPT_AUD_CFG(pipe); | |
6210 | aud_cntl_st = CPT_AUD_CNTL_ST(pipe); | |
1202b4c6 | 6211 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; |
e0dac65e WF |
6212 | } |
6213 | ||
9b138a83 | 6214 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); |
e0dac65e WF |
6215 | |
6216 | i = I915_READ(aud_cntl_st); | |
9b138a83 | 6217 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ |
e0dac65e WF |
6218 | if (!i) { |
6219 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); | |
6220 | /* operate blindly on all ports */ | |
1202b4c6 WF |
6221 | eldv = IBX_ELD_VALIDB; |
6222 | eldv |= IBX_ELD_VALIDB << 4; | |
6223 | eldv |= IBX_ELD_VALIDB << 8; | |
e0dac65e | 6224 | } else { |
2582a850 | 6225 | DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i)); |
1202b4c6 | 6226 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
e0dac65e WF |
6227 | } |
6228 | ||
3a9627f4 WF |
6229 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
6230 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
6231 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
b6daa025 WF |
6232 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
6233 | } else | |
6234 | I915_WRITE(aud_config, 0); | |
e0dac65e | 6235 | |
3a9627f4 WF |
6236 | if (intel_eld_uptodate(connector, |
6237 | aud_cntrl_st2, eldv, | |
6238 | aud_cntl_st, IBX_ELD_ADDRESS, | |
6239 | hdmiw_hdmiedid)) | |
6240 | return; | |
6241 | ||
e0dac65e WF |
6242 | i = I915_READ(aud_cntrl_st2); |
6243 | i &= ~eldv; | |
6244 | I915_WRITE(aud_cntrl_st2, i); | |
6245 | ||
6246 | if (!eld[0]) | |
6247 | return; | |
6248 | ||
e0dac65e | 6249 | i = I915_READ(aud_cntl_st); |
1202b4c6 | 6250 | i &= ~IBX_ELD_ADDRESS; |
e0dac65e WF |
6251 | I915_WRITE(aud_cntl_st, i); |
6252 | ||
6253 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
6254 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
6255 | for (i = 0; i < len; i++) | |
6256 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
6257 | ||
6258 | i = I915_READ(aud_cntrl_st2); | |
6259 | i |= eldv; | |
6260 | I915_WRITE(aud_cntrl_st2, i); | |
6261 | } | |
6262 | ||
6263 | void intel_write_eld(struct drm_encoder *encoder, | |
6264 | struct drm_display_mode *mode) | |
6265 | { | |
6266 | struct drm_crtc *crtc = encoder->crtc; | |
6267 | struct drm_connector *connector; | |
6268 | struct drm_device *dev = encoder->dev; | |
6269 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6270 | ||
6271 | connector = drm_select_eld(encoder, mode); | |
6272 | if (!connector) | |
6273 | return; | |
6274 | ||
6275 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", | |
6276 | connector->base.id, | |
6277 | drm_get_connector_name(connector), | |
6278 | connector->encoder->base.id, | |
6279 | drm_get_encoder_name(connector->encoder)); | |
6280 | ||
6281 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; | |
6282 | ||
6283 | if (dev_priv->display.write_eld) | |
6284 | dev_priv->display.write_eld(connector, crtc); | |
6285 | } | |
6286 | ||
79e53945 JB |
6287 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
6288 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
6289 | { | |
6290 | struct drm_device *dev = crtc->dev; | |
6291 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6292 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
42db64ef PZ |
6293 | enum pipe pipe = intel_crtc->pipe; |
6294 | int palreg = PALETTE(pipe); | |
79e53945 | 6295 | int i; |
42db64ef | 6296 | bool reenable_ips = false; |
79e53945 JB |
6297 | |
6298 | /* The clocks have to be on to load the palette. */ | |
aed3f09d | 6299 | if (!crtc->enabled || !intel_crtc->active) |
79e53945 JB |
6300 | return; |
6301 | ||
f2b115e6 | 6302 | /* use legacy palette for Ironlake */ |
bad720ff | 6303 | if (HAS_PCH_SPLIT(dev)) |
42db64ef PZ |
6304 | palreg = LGC_PALETTE(pipe); |
6305 | ||
6306 | /* Workaround : Do not read or write the pipe palette/gamma data while | |
6307 | * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled. | |
6308 | */ | |
6309 | if (intel_crtc->config.ips_enabled && | |
6310 | ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) == | |
6311 | GAMMA_MODE_MODE_SPLIT)) { | |
6312 | hsw_disable_ips(intel_crtc); | |
6313 | reenable_ips = true; | |
6314 | } | |
2c07245f | 6315 | |
79e53945 JB |
6316 | for (i = 0; i < 256; i++) { |
6317 | I915_WRITE(palreg + 4 * i, | |
6318 | (intel_crtc->lut_r[i] << 16) | | |
6319 | (intel_crtc->lut_g[i] << 8) | | |
6320 | intel_crtc->lut_b[i]); | |
6321 | } | |
42db64ef PZ |
6322 | |
6323 | if (reenable_ips) | |
6324 | hsw_enable_ips(intel_crtc); | |
79e53945 JB |
6325 | } |
6326 | ||
560b85bb CW |
6327 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
6328 | { | |
6329 | struct drm_device *dev = crtc->dev; | |
6330 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6331 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6332 | bool visible = base != 0; | |
6333 | u32 cntl; | |
6334 | ||
6335 | if (intel_crtc->cursor_visible == visible) | |
6336 | return; | |
6337 | ||
9db4a9c7 | 6338 | cntl = I915_READ(_CURACNTR); |
560b85bb CW |
6339 | if (visible) { |
6340 | /* On these chipsets we can only modify the base whilst | |
6341 | * the cursor is disabled. | |
6342 | */ | |
9db4a9c7 | 6343 | I915_WRITE(_CURABASE, base); |
560b85bb CW |
6344 | |
6345 | cntl &= ~(CURSOR_FORMAT_MASK); | |
6346 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ | |
6347 | cntl |= CURSOR_ENABLE | | |
6348 | CURSOR_GAMMA_ENABLE | | |
6349 | CURSOR_FORMAT_ARGB; | |
6350 | } else | |
6351 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
9db4a9c7 | 6352 | I915_WRITE(_CURACNTR, cntl); |
560b85bb CW |
6353 | |
6354 | intel_crtc->cursor_visible = visible; | |
6355 | } | |
6356 | ||
6357 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) | |
6358 | { | |
6359 | struct drm_device *dev = crtc->dev; | |
6360 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6361 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6362 | int pipe = intel_crtc->pipe; | |
6363 | bool visible = base != 0; | |
6364 | ||
6365 | if (intel_crtc->cursor_visible != visible) { | |
548f245b | 6366 | uint32_t cntl = I915_READ(CURCNTR(pipe)); |
560b85bb CW |
6367 | if (base) { |
6368 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
6369 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
6370 | cntl |= pipe << 28; /* Connect to correct pipe */ | |
6371 | } else { | |
6372 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
6373 | cntl |= CURSOR_MODE_DISABLE; | |
6374 | } | |
9db4a9c7 | 6375 | I915_WRITE(CURCNTR(pipe), cntl); |
560b85bb CW |
6376 | |
6377 | intel_crtc->cursor_visible = visible; | |
6378 | } | |
6379 | /* and commit changes on next vblank */ | |
9db4a9c7 | 6380 | I915_WRITE(CURBASE(pipe), base); |
560b85bb CW |
6381 | } |
6382 | ||
65a21cd6 JB |
6383 | static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) |
6384 | { | |
6385 | struct drm_device *dev = crtc->dev; | |
6386 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6387 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6388 | int pipe = intel_crtc->pipe; | |
6389 | bool visible = base != 0; | |
6390 | ||
6391 | if (intel_crtc->cursor_visible != visible) { | |
6392 | uint32_t cntl = I915_READ(CURCNTR_IVB(pipe)); | |
6393 | if (base) { | |
6394 | cntl &= ~CURSOR_MODE; | |
6395 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
6396 | } else { | |
6397 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
6398 | cntl |= CURSOR_MODE_DISABLE; | |
6399 | } | |
86d3efce VS |
6400 | if (IS_HASWELL(dev)) |
6401 | cntl |= CURSOR_PIPE_CSC_ENABLE; | |
65a21cd6 JB |
6402 | I915_WRITE(CURCNTR_IVB(pipe), cntl); |
6403 | ||
6404 | intel_crtc->cursor_visible = visible; | |
6405 | } | |
6406 | /* and commit changes on next vblank */ | |
6407 | I915_WRITE(CURBASE_IVB(pipe), base); | |
6408 | } | |
6409 | ||
cda4b7d3 | 6410 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
6411 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
6412 | bool on) | |
cda4b7d3 CW |
6413 | { |
6414 | struct drm_device *dev = crtc->dev; | |
6415 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6416 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6417 | int pipe = intel_crtc->pipe; | |
6418 | int x = intel_crtc->cursor_x; | |
6419 | int y = intel_crtc->cursor_y; | |
560b85bb | 6420 | u32 base, pos; |
cda4b7d3 CW |
6421 | bool visible; |
6422 | ||
6423 | pos = 0; | |
6424 | ||
6b383a7f | 6425 | if (on && crtc->enabled && crtc->fb) { |
cda4b7d3 CW |
6426 | base = intel_crtc->cursor_addr; |
6427 | if (x > (int) crtc->fb->width) | |
6428 | base = 0; | |
6429 | ||
6430 | if (y > (int) crtc->fb->height) | |
6431 | base = 0; | |
6432 | } else | |
6433 | base = 0; | |
6434 | ||
6435 | if (x < 0) { | |
6436 | if (x + intel_crtc->cursor_width < 0) | |
6437 | base = 0; | |
6438 | ||
6439 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
6440 | x = -x; | |
6441 | } | |
6442 | pos |= x << CURSOR_X_SHIFT; | |
6443 | ||
6444 | if (y < 0) { | |
6445 | if (y + intel_crtc->cursor_height < 0) | |
6446 | base = 0; | |
6447 | ||
6448 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
6449 | y = -y; | |
6450 | } | |
6451 | pos |= y << CURSOR_Y_SHIFT; | |
6452 | ||
6453 | visible = base != 0; | |
560b85bb | 6454 | if (!visible && !intel_crtc->cursor_visible) |
cda4b7d3 CW |
6455 | return; |
6456 | ||
0cd83aa9 | 6457 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
65a21cd6 JB |
6458 | I915_WRITE(CURPOS_IVB(pipe), pos); |
6459 | ivb_update_cursor(crtc, base); | |
6460 | } else { | |
6461 | I915_WRITE(CURPOS(pipe), pos); | |
6462 | if (IS_845G(dev) || IS_I865G(dev)) | |
6463 | i845_update_cursor(crtc, base); | |
6464 | else | |
6465 | i9xx_update_cursor(crtc, base); | |
6466 | } | |
cda4b7d3 CW |
6467 | } |
6468 | ||
79e53945 | 6469 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
05394f39 | 6470 | struct drm_file *file, |
79e53945 JB |
6471 | uint32_t handle, |
6472 | uint32_t width, uint32_t height) | |
6473 | { | |
6474 | struct drm_device *dev = crtc->dev; | |
6475 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6476 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
05394f39 | 6477 | struct drm_i915_gem_object *obj; |
cda4b7d3 | 6478 | uint32_t addr; |
3f8bc370 | 6479 | int ret; |
79e53945 | 6480 | |
79e53945 JB |
6481 | /* if we want to turn off the cursor ignore width and height */ |
6482 | if (!handle) { | |
28c97730 | 6483 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 | 6484 | addr = 0; |
05394f39 | 6485 | obj = NULL; |
5004417d | 6486 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 6487 | goto finish; |
79e53945 JB |
6488 | } |
6489 | ||
6490 | /* Currently we only support 64x64 cursors */ | |
6491 | if (width != 64 || height != 64) { | |
6492 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
6493 | return -EINVAL; | |
6494 | } | |
6495 | ||
05394f39 | 6496 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
c8725226 | 6497 | if (&obj->base == NULL) |
79e53945 JB |
6498 | return -ENOENT; |
6499 | ||
05394f39 | 6500 | if (obj->base.size < width * height * 4) { |
79e53945 | 6501 | DRM_ERROR("buffer is to small\n"); |
34b8686e DA |
6502 | ret = -ENOMEM; |
6503 | goto fail; | |
79e53945 JB |
6504 | } |
6505 | ||
71acb5eb | 6506 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 6507 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 6508 | if (!dev_priv->info->cursor_needs_physical) { |
693db184 CW |
6509 | unsigned alignment; |
6510 | ||
d9e86c0e CW |
6511 | if (obj->tiling_mode) { |
6512 | DRM_ERROR("cursor cannot be tiled\n"); | |
6513 | ret = -EINVAL; | |
6514 | goto fail_locked; | |
6515 | } | |
6516 | ||
693db184 CW |
6517 | /* Note that the w/a also requires 2 PTE of padding following |
6518 | * the bo. We currently fill all unused PTE with the shadow | |
6519 | * page and so we should always have valid PTE following the | |
6520 | * cursor preventing the VT-d warning. | |
6521 | */ | |
6522 | alignment = 0; | |
6523 | if (need_vtd_wa(dev)) | |
6524 | alignment = 64*1024; | |
6525 | ||
6526 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL); | |
e7b526bb CW |
6527 | if (ret) { |
6528 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
2da3b9b9 | 6529 | goto fail_locked; |
e7b526bb CW |
6530 | } |
6531 | ||
d9e86c0e CW |
6532 | ret = i915_gem_object_put_fence(obj); |
6533 | if (ret) { | |
2da3b9b9 | 6534 | DRM_ERROR("failed to release fence for cursor"); |
d9e86c0e CW |
6535 | goto fail_unpin; |
6536 | } | |
6537 | ||
05394f39 | 6538 | addr = obj->gtt_offset; |
71acb5eb | 6539 | } else { |
6eeefaf3 | 6540 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
05394f39 | 6541 | ret = i915_gem_attach_phys_object(dev, obj, |
6eeefaf3 CW |
6542 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
6543 | align); | |
71acb5eb DA |
6544 | if (ret) { |
6545 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 6546 | goto fail_locked; |
71acb5eb | 6547 | } |
05394f39 | 6548 | addr = obj->phys_obj->handle->busaddr; |
3f8bc370 KH |
6549 | } |
6550 | ||
a6c45cf0 | 6551 | if (IS_GEN2(dev)) |
14b60391 JB |
6552 | I915_WRITE(CURSIZE, (height << 12) | width); |
6553 | ||
3f8bc370 | 6554 | finish: |
3f8bc370 | 6555 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 6556 | if (dev_priv->info->cursor_needs_physical) { |
05394f39 | 6557 | if (intel_crtc->cursor_bo != obj) |
71acb5eb DA |
6558 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
6559 | } else | |
6560 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
05394f39 | 6561 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
3f8bc370 | 6562 | } |
80824003 | 6563 | |
7f9872e0 | 6564 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
6565 | |
6566 | intel_crtc->cursor_addr = addr; | |
05394f39 | 6567 | intel_crtc->cursor_bo = obj; |
cda4b7d3 CW |
6568 | intel_crtc->cursor_width = width; |
6569 | intel_crtc->cursor_height = height; | |
6570 | ||
40ccc72b | 6571 | intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL); |
3f8bc370 | 6572 | |
79e53945 | 6573 | return 0; |
e7b526bb | 6574 | fail_unpin: |
05394f39 | 6575 | i915_gem_object_unpin(obj); |
7f9872e0 | 6576 | fail_locked: |
34b8686e | 6577 | mutex_unlock(&dev->struct_mutex); |
bc9025bd | 6578 | fail: |
05394f39 | 6579 | drm_gem_object_unreference_unlocked(&obj->base); |
34b8686e | 6580 | return ret; |
79e53945 JB |
6581 | } |
6582 | ||
6583 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
6584 | { | |
79e53945 | 6585 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 6586 | |
cda4b7d3 CW |
6587 | intel_crtc->cursor_x = x; |
6588 | intel_crtc->cursor_y = y; | |
652c393a | 6589 | |
40ccc72b | 6590 | intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL); |
79e53945 JB |
6591 | |
6592 | return 0; | |
6593 | } | |
6594 | ||
6595 | /** Sets the color ramps on behalf of RandR */ | |
6596 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
6597 | u16 blue, int regno) | |
6598 | { | |
6599 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6600 | ||
6601 | intel_crtc->lut_r[regno] = red >> 8; | |
6602 | intel_crtc->lut_g[regno] = green >> 8; | |
6603 | intel_crtc->lut_b[regno] = blue >> 8; | |
6604 | } | |
6605 | ||
b8c00ac5 DA |
6606 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
6607 | u16 *blue, int regno) | |
6608 | { | |
6609 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6610 | ||
6611 | *red = intel_crtc->lut_r[regno] << 8; | |
6612 | *green = intel_crtc->lut_g[regno] << 8; | |
6613 | *blue = intel_crtc->lut_b[regno] << 8; | |
6614 | } | |
6615 | ||
79e53945 | 6616 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 6617 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 6618 | { |
7203425a | 6619 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 6620 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 6621 | |
7203425a | 6622 | for (i = start; i < end; i++) { |
79e53945 JB |
6623 | intel_crtc->lut_r[i] = red[i] >> 8; |
6624 | intel_crtc->lut_g[i] = green[i] >> 8; | |
6625 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
6626 | } | |
6627 | ||
6628 | intel_crtc_load_lut(crtc); | |
6629 | } | |
6630 | ||
79e53945 JB |
6631 | /* VESA 640x480x72Hz mode to set on the pipe */ |
6632 | static struct drm_display_mode load_detect_mode = { | |
6633 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
6634 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
6635 | }; | |
6636 | ||
d2dff872 CW |
6637 | static struct drm_framebuffer * |
6638 | intel_framebuffer_create(struct drm_device *dev, | |
308e5bcb | 6639 | struct drm_mode_fb_cmd2 *mode_cmd, |
d2dff872 CW |
6640 | struct drm_i915_gem_object *obj) |
6641 | { | |
6642 | struct intel_framebuffer *intel_fb; | |
6643 | int ret; | |
6644 | ||
6645 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
6646 | if (!intel_fb) { | |
6647 | drm_gem_object_unreference_unlocked(&obj->base); | |
6648 | return ERR_PTR(-ENOMEM); | |
6649 | } | |
6650 | ||
6651 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
6652 | if (ret) { | |
6653 | drm_gem_object_unreference_unlocked(&obj->base); | |
6654 | kfree(intel_fb); | |
6655 | return ERR_PTR(ret); | |
6656 | } | |
6657 | ||
6658 | return &intel_fb->base; | |
6659 | } | |
6660 | ||
6661 | static u32 | |
6662 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
6663 | { | |
6664 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
6665 | return ALIGN(pitch, 64); | |
6666 | } | |
6667 | ||
6668 | static u32 | |
6669 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
6670 | { | |
6671 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
6672 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); | |
6673 | } | |
6674 | ||
6675 | static struct drm_framebuffer * | |
6676 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
6677 | struct drm_display_mode *mode, | |
6678 | int depth, int bpp) | |
6679 | { | |
6680 | struct drm_i915_gem_object *obj; | |
0fed39bd | 6681 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; |
d2dff872 CW |
6682 | |
6683 | obj = i915_gem_alloc_object(dev, | |
6684 | intel_framebuffer_size_for_mode(mode, bpp)); | |
6685 | if (obj == NULL) | |
6686 | return ERR_PTR(-ENOMEM); | |
6687 | ||
6688 | mode_cmd.width = mode->hdisplay; | |
6689 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
6690 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
6691 | bpp); | |
5ca0c34a | 6692 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
6693 | |
6694 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
6695 | } | |
6696 | ||
6697 | static struct drm_framebuffer * | |
6698 | mode_fits_in_fbdev(struct drm_device *dev, | |
6699 | struct drm_display_mode *mode) | |
6700 | { | |
6701 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6702 | struct drm_i915_gem_object *obj; | |
6703 | struct drm_framebuffer *fb; | |
6704 | ||
6705 | if (dev_priv->fbdev == NULL) | |
6706 | return NULL; | |
6707 | ||
6708 | obj = dev_priv->fbdev->ifb.obj; | |
6709 | if (obj == NULL) | |
6710 | return NULL; | |
6711 | ||
6712 | fb = &dev_priv->fbdev->ifb.base; | |
01f2c773 VS |
6713 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
6714 | fb->bits_per_pixel)) | |
d2dff872 CW |
6715 | return NULL; |
6716 | ||
01f2c773 | 6717 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
6718 | return NULL; |
6719 | ||
6720 | return fb; | |
6721 | } | |
6722 | ||
d2434ab7 | 6723 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 6724 | struct drm_display_mode *mode, |
8261b191 | 6725 | struct intel_load_detect_pipe *old) |
79e53945 JB |
6726 | { |
6727 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
6728 | struct intel_encoder *intel_encoder = |
6729 | intel_attached_encoder(connector); | |
79e53945 | 6730 | struct drm_crtc *possible_crtc; |
4ef69c7a | 6731 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
6732 | struct drm_crtc *crtc = NULL; |
6733 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 6734 | struct drm_framebuffer *fb; |
79e53945 JB |
6735 | int i = -1; |
6736 | ||
d2dff872 CW |
6737 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
6738 | connector->base.id, drm_get_connector_name(connector), | |
6739 | encoder->base.id, drm_get_encoder_name(encoder)); | |
6740 | ||
79e53945 JB |
6741 | /* |
6742 | * Algorithm gets a little messy: | |
7a5e4805 | 6743 | * |
79e53945 JB |
6744 | * - if the connector already has an assigned crtc, use it (but make |
6745 | * sure it's on first) | |
7a5e4805 | 6746 | * |
79e53945 JB |
6747 | * - try to find the first unused crtc that can drive this connector, |
6748 | * and use that if we find one | |
79e53945 JB |
6749 | */ |
6750 | ||
6751 | /* See if we already have a CRTC for this connector */ | |
6752 | if (encoder->crtc) { | |
6753 | crtc = encoder->crtc; | |
8261b191 | 6754 | |
7b24056b DV |
6755 | mutex_lock(&crtc->mutex); |
6756 | ||
24218aac | 6757 | old->dpms_mode = connector->dpms; |
8261b191 CW |
6758 | old->load_detect_temp = false; |
6759 | ||
6760 | /* Make sure the crtc and connector are running */ | |
24218aac DV |
6761 | if (connector->dpms != DRM_MODE_DPMS_ON) |
6762 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); | |
8261b191 | 6763 | |
7173188d | 6764 | return true; |
79e53945 JB |
6765 | } |
6766 | ||
6767 | /* Find an unused one (if possible) */ | |
6768 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
6769 | i++; | |
6770 | if (!(encoder->possible_crtcs & (1 << i))) | |
6771 | continue; | |
6772 | if (!possible_crtc->enabled) { | |
6773 | crtc = possible_crtc; | |
6774 | break; | |
6775 | } | |
79e53945 JB |
6776 | } |
6777 | ||
6778 | /* | |
6779 | * If we didn't find an unused CRTC, don't use any. | |
6780 | */ | |
6781 | if (!crtc) { | |
7173188d CW |
6782 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
6783 | return false; | |
79e53945 JB |
6784 | } |
6785 | ||
7b24056b | 6786 | mutex_lock(&crtc->mutex); |
fc303101 DV |
6787 | intel_encoder->new_crtc = to_intel_crtc(crtc); |
6788 | to_intel_connector(connector)->new_encoder = intel_encoder; | |
79e53945 JB |
6789 | |
6790 | intel_crtc = to_intel_crtc(crtc); | |
24218aac | 6791 | old->dpms_mode = connector->dpms; |
8261b191 | 6792 | old->load_detect_temp = true; |
d2dff872 | 6793 | old->release_fb = NULL; |
79e53945 | 6794 | |
6492711d CW |
6795 | if (!mode) |
6796 | mode = &load_detect_mode; | |
79e53945 | 6797 | |
d2dff872 CW |
6798 | /* We need a framebuffer large enough to accommodate all accesses |
6799 | * that the plane may generate whilst we perform load detection. | |
6800 | * We can not rely on the fbcon either being present (we get called | |
6801 | * during its initialisation to detect all boot displays, or it may | |
6802 | * not even exist) or that it is large enough to satisfy the | |
6803 | * requested mode. | |
6804 | */ | |
94352cf9 DV |
6805 | fb = mode_fits_in_fbdev(dev, mode); |
6806 | if (fb == NULL) { | |
d2dff872 | 6807 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 DV |
6808 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
6809 | old->release_fb = fb; | |
d2dff872 CW |
6810 | } else |
6811 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 6812 | if (IS_ERR(fb)) { |
d2dff872 | 6813 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
7b24056b | 6814 | mutex_unlock(&crtc->mutex); |
0e8b3d3e | 6815 | return false; |
79e53945 | 6816 | } |
79e53945 | 6817 | |
c0c36b94 | 6818 | if (intel_set_mode(crtc, mode, 0, 0, fb)) { |
6492711d | 6819 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
6820 | if (old->release_fb) |
6821 | old->release_fb->funcs->destroy(old->release_fb); | |
7b24056b | 6822 | mutex_unlock(&crtc->mutex); |
0e8b3d3e | 6823 | return false; |
79e53945 | 6824 | } |
7173188d | 6825 | |
79e53945 | 6826 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 6827 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
7173188d | 6828 | return true; |
79e53945 JB |
6829 | } |
6830 | ||
d2434ab7 | 6831 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
8261b191 | 6832 | struct intel_load_detect_pipe *old) |
79e53945 | 6833 | { |
d2434ab7 DV |
6834 | struct intel_encoder *intel_encoder = |
6835 | intel_attached_encoder(connector); | |
4ef69c7a | 6836 | struct drm_encoder *encoder = &intel_encoder->base; |
7b24056b | 6837 | struct drm_crtc *crtc = encoder->crtc; |
79e53945 | 6838 | |
d2dff872 CW |
6839 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
6840 | connector->base.id, drm_get_connector_name(connector), | |
6841 | encoder->base.id, drm_get_encoder_name(encoder)); | |
6842 | ||
8261b191 | 6843 | if (old->load_detect_temp) { |
fc303101 DV |
6844 | to_intel_connector(connector)->new_encoder = NULL; |
6845 | intel_encoder->new_crtc = NULL; | |
6846 | intel_set_mode(crtc, NULL, 0, 0, NULL); | |
d2dff872 | 6847 | |
36206361 DV |
6848 | if (old->release_fb) { |
6849 | drm_framebuffer_unregister_private(old->release_fb); | |
6850 | drm_framebuffer_unreference(old->release_fb); | |
6851 | } | |
d2dff872 | 6852 | |
67c96400 | 6853 | mutex_unlock(&crtc->mutex); |
0622a53c | 6854 | return; |
79e53945 JB |
6855 | } |
6856 | ||
c751ce4f | 6857 | /* Switch crtc and encoder back off if necessary */ |
24218aac DV |
6858 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
6859 | connector->funcs->dpms(connector, old->dpms_mode); | |
7b24056b DV |
6860 | |
6861 | mutex_unlock(&crtc->mutex); | |
79e53945 JB |
6862 | } |
6863 | ||
6864 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
6865 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
6866 | { | |
6867 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6868 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6869 | int pipe = intel_crtc->pipe; | |
548f245b | 6870 | u32 dpll = I915_READ(DPLL(pipe)); |
79e53945 JB |
6871 | u32 fp; |
6872 | intel_clock_t clock; | |
6873 | ||
6874 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
39adb7a5 | 6875 | fp = I915_READ(FP0(pipe)); |
79e53945 | 6876 | else |
39adb7a5 | 6877 | fp = I915_READ(FP1(pipe)); |
79e53945 JB |
6878 | |
6879 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
6880 | if (IS_PINEVIEW(dev)) { |
6881 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
6882 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
6883 | } else { |
6884 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
6885 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
6886 | } | |
6887 | ||
a6c45cf0 | 6888 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
6889 | if (IS_PINEVIEW(dev)) |
6890 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
6891 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
6892 | else |
6893 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
6894 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
6895 | ||
6896 | switch (dpll & DPLL_MODE_MASK) { | |
6897 | case DPLLB_MODE_DAC_SERIAL: | |
6898 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
6899 | 5 : 10; | |
6900 | break; | |
6901 | case DPLLB_MODE_LVDS: | |
6902 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
6903 | 7 : 14; | |
6904 | break; | |
6905 | default: | |
28c97730 | 6906 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
6907 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
6908 | return 0; | |
6909 | } | |
6910 | ||
ac58c3f0 DV |
6911 | if (IS_PINEVIEW(dev)) |
6912 | pineview_clock(96000, &clock); | |
6913 | else | |
6914 | i9xx_clock(96000, &clock); | |
79e53945 JB |
6915 | } else { |
6916 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
6917 | ||
6918 | if (is_lvds) { | |
6919 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
6920 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
6921 | clock.p2 = 14; | |
6922 | ||
6923 | if ((dpll & PLL_REF_INPUT_MASK) == | |
6924 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
6925 | /* XXX: might not be 66MHz */ | |
ac58c3f0 | 6926 | i9xx_clock(66000, &clock); |
79e53945 | 6927 | } else |
ac58c3f0 | 6928 | i9xx_clock(48000, &clock); |
79e53945 JB |
6929 | } else { |
6930 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
6931 | clock.p1 = 2; | |
6932 | else { | |
6933 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
6934 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
6935 | } | |
6936 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
6937 | clock.p2 = 4; | |
6938 | else | |
6939 | clock.p2 = 2; | |
6940 | ||
ac58c3f0 | 6941 | i9xx_clock(48000, &clock); |
79e53945 JB |
6942 | } |
6943 | } | |
6944 | ||
6945 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
6946 | * i830PllIsValid() because it relies on the xf86_config connector | |
6947 | * configuration being accurate, which it isn't necessarily. | |
6948 | */ | |
6949 | ||
6950 | return clock.dot; | |
6951 | } | |
6952 | ||
6953 | /** Returns the currently programmed mode of the given pipe. */ | |
6954 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
6955 | struct drm_crtc *crtc) | |
6956 | { | |
548f245b | 6957 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 6958 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3b117c8f | 6959 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
79e53945 | 6960 | struct drm_display_mode *mode; |
fe2b8f9d PZ |
6961 | int htot = I915_READ(HTOTAL(cpu_transcoder)); |
6962 | int hsync = I915_READ(HSYNC(cpu_transcoder)); | |
6963 | int vtot = I915_READ(VTOTAL(cpu_transcoder)); | |
6964 | int vsync = I915_READ(VSYNC(cpu_transcoder)); | |
79e53945 JB |
6965 | |
6966 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
6967 | if (!mode) | |
6968 | return NULL; | |
6969 | ||
6970 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
6971 | mode->hdisplay = (htot & 0xffff) + 1; | |
6972 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
6973 | mode->hsync_start = (hsync & 0xffff) + 1; | |
6974 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
6975 | mode->vdisplay = (vtot & 0xffff) + 1; | |
6976 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
6977 | mode->vsync_start = (vsync & 0xffff) + 1; | |
6978 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
6979 | ||
6980 | drm_mode_set_name(mode); | |
79e53945 JB |
6981 | |
6982 | return mode; | |
6983 | } | |
6984 | ||
3dec0095 | 6985 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
652c393a JB |
6986 | { |
6987 | struct drm_device *dev = crtc->dev; | |
6988 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6989 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6990 | int pipe = intel_crtc->pipe; | |
dbdc6479 JB |
6991 | int dpll_reg = DPLL(pipe); |
6992 | int dpll; | |
652c393a | 6993 | |
bad720ff | 6994 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
6995 | return; |
6996 | ||
6997 | if (!dev_priv->lvds_downclock_avail) | |
6998 | return; | |
6999 | ||
dbdc6479 | 7000 | dpll = I915_READ(dpll_reg); |
652c393a | 7001 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
44d98a61 | 7002 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a | 7003 | |
8ac5a6d5 | 7004 | assert_panel_unlocked(dev_priv, pipe); |
652c393a JB |
7005 | |
7006 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
7007 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 7008 | intel_wait_for_vblank(dev, pipe); |
dbdc6479 | 7009 | |
652c393a JB |
7010 | dpll = I915_READ(dpll_reg); |
7011 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 7012 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a | 7013 | } |
652c393a JB |
7014 | } |
7015 | ||
7016 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
7017 | { | |
7018 | struct drm_device *dev = crtc->dev; | |
7019 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7020 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
652c393a | 7021 | |
bad720ff | 7022 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
7023 | return; |
7024 | ||
7025 | if (!dev_priv->lvds_downclock_avail) | |
7026 | return; | |
7027 | ||
7028 | /* | |
7029 | * Since this is called by a timer, we should never get here in | |
7030 | * the manual case. | |
7031 | */ | |
7032 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
dc257cf1 DV |
7033 | int pipe = intel_crtc->pipe; |
7034 | int dpll_reg = DPLL(pipe); | |
7035 | int dpll; | |
f6e5b160 | 7036 | |
44d98a61 | 7037 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a | 7038 | |
8ac5a6d5 | 7039 | assert_panel_unlocked(dev_priv, pipe); |
652c393a | 7040 | |
dc257cf1 | 7041 | dpll = I915_READ(dpll_reg); |
652c393a JB |
7042 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
7043 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 7044 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
7045 | dpll = I915_READ(dpll_reg); |
7046 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 7047 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
7048 | } |
7049 | ||
7050 | } | |
7051 | ||
f047e395 CW |
7052 | void intel_mark_busy(struct drm_device *dev) |
7053 | { | |
f047e395 CW |
7054 | i915_update_gfx_val(dev->dev_private); |
7055 | } | |
7056 | ||
7057 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 7058 | { |
652c393a | 7059 | struct drm_crtc *crtc; |
652c393a JB |
7060 | |
7061 | if (!i915_powersave) | |
7062 | return; | |
7063 | ||
652c393a | 7064 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
652c393a JB |
7065 | if (!crtc->fb) |
7066 | continue; | |
7067 | ||
725a5b54 | 7068 | intel_decrease_pllclock(crtc); |
652c393a | 7069 | } |
652c393a JB |
7070 | } |
7071 | ||
725a5b54 | 7072 | void intel_mark_fb_busy(struct drm_i915_gem_object *obj) |
652c393a | 7073 | { |
f047e395 CW |
7074 | struct drm_device *dev = obj->base.dev; |
7075 | struct drm_crtc *crtc; | |
652c393a | 7076 | |
f047e395 | 7077 | if (!i915_powersave) |
acb87dfb CW |
7078 | return; |
7079 | ||
652c393a JB |
7080 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
7081 | if (!crtc->fb) | |
7082 | continue; | |
7083 | ||
f047e395 | 7084 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
725a5b54 | 7085 | intel_increase_pllclock(crtc); |
652c393a JB |
7086 | } |
7087 | } | |
7088 | ||
79e53945 JB |
7089 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
7090 | { | |
7091 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
7092 | struct drm_device *dev = crtc->dev; |
7093 | struct intel_unpin_work *work; | |
7094 | unsigned long flags; | |
7095 | ||
7096 | spin_lock_irqsave(&dev->event_lock, flags); | |
7097 | work = intel_crtc->unpin_work; | |
7098 | intel_crtc->unpin_work = NULL; | |
7099 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7100 | ||
7101 | if (work) { | |
7102 | cancel_work_sync(&work->work); | |
7103 | kfree(work); | |
7104 | } | |
79e53945 | 7105 | |
40ccc72b MK |
7106 | intel_crtc_cursor_set(crtc, NULL, 0, 0, 0); |
7107 | ||
79e53945 | 7108 | drm_crtc_cleanup(crtc); |
67e77c5a | 7109 | |
79e53945 JB |
7110 | kfree(intel_crtc); |
7111 | } | |
7112 | ||
6b95a207 KH |
7113 | static void intel_unpin_work_fn(struct work_struct *__work) |
7114 | { | |
7115 | struct intel_unpin_work *work = | |
7116 | container_of(__work, struct intel_unpin_work, work); | |
b4a98e57 | 7117 | struct drm_device *dev = work->crtc->dev; |
6b95a207 | 7118 | |
b4a98e57 | 7119 | mutex_lock(&dev->struct_mutex); |
1690e1eb | 7120 | intel_unpin_fb_obj(work->old_fb_obj); |
05394f39 CW |
7121 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
7122 | drm_gem_object_unreference(&work->old_fb_obj->base); | |
d9e86c0e | 7123 | |
b4a98e57 CW |
7124 | intel_update_fbc(dev); |
7125 | mutex_unlock(&dev->struct_mutex); | |
7126 | ||
7127 | BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0); | |
7128 | atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count); | |
7129 | ||
6b95a207 KH |
7130 | kfree(work); |
7131 | } | |
7132 | ||
1afe3e9d | 7133 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 7134 | struct drm_crtc *crtc) |
6b95a207 KH |
7135 | { |
7136 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6b95a207 KH |
7137 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
7138 | struct intel_unpin_work *work; | |
6b95a207 KH |
7139 | unsigned long flags; |
7140 | ||
7141 | /* Ignore early vblank irqs */ | |
7142 | if (intel_crtc == NULL) | |
7143 | return; | |
7144 | ||
7145 | spin_lock_irqsave(&dev->event_lock, flags); | |
7146 | work = intel_crtc->unpin_work; | |
e7d841ca CW |
7147 | |
7148 | /* Ensure we don't miss a work->pending update ... */ | |
7149 | smp_rmb(); | |
7150 | ||
7151 | if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) { | |
6b95a207 KH |
7152 | spin_unlock_irqrestore(&dev->event_lock, flags); |
7153 | return; | |
7154 | } | |
7155 | ||
e7d841ca CW |
7156 | /* and that the unpin work is consistent wrt ->pending. */ |
7157 | smp_rmb(); | |
7158 | ||
6b95a207 | 7159 | intel_crtc->unpin_work = NULL; |
6b95a207 | 7160 | |
45a066eb RC |
7161 | if (work->event) |
7162 | drm_send_vblank_event(dev, intel_crtc->pipe, work->event); | |
6b95a207 | 7163 | |
0af7e4df MK |
7164 | drm_vblank_put(dev, intel_crtc->pipe); |
7165 | ||
6b95a207 KH |
7166 | spin_unlock_irqrestore(&dev->event_lock, flags); |
7167 | ||
2c10d571 | 7168 | wake_up_all(&dev_priv->pending_flip_queue); |
b4a98e57 CW |
7169 | |
7170 | queue_work(dev_priv->wq, &work->work); | |
e5510fac JB |
7171 | |
7172 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); | |
6b95a207 KH |
7173 | } |
7174 | ||
1afe3e9d JB |
7175 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
7176 | { | |
7177 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7178 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
7179 | ||
49b14a5c | 7180 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
7181 | } |
7182 | ||
7183 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
7184 | { | |
7185 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7186 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; | |
7187 | ||
49b14a5c | 7188 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
7189 | } |
7190 | ||
6b95a207 KH |
7191 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
7192 | { | |
7193 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7194 | struct intel_crtc *intel_crtc = | |
7195 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
7196 | unsigned long flags; | |
7197 | ||
e7d841ca CW |
7198 | /* NB: An MMIO update of the plane base pointer will also |
7199 | * generate a page-flip completion irq, i.e. every modeset | |
7200 | * is also accompanied by a spurious intel_prepare_page_flip(). | |
7201 | */ | |
6b95a207 | 7202 | spin_lock_irqsave(&dev->event_lock, flags); |
e7d841ca CW |
7203 | if (intel_crtc->unpin_work) |
7204 | atomic_inc_not_zero(&intel_crtc->unpin_work->pending); | |
6b95a207 KH |
7205 | spin_unlock_irqrestore(&dev->event_lock, flags); |
7206 | } | |
7207 | ||
e7d841ca CW |
7208 | inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc) |
7209 | { | |
7210 | /* Ensure that the work item is consistent when activating it ... */ | |
7211 | smp_wmb(); | |
7212 | atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING); | |
7213 | /* and that it is marked active as soon as the irq could fire. */ | |
7214 | smp_wmb(); | |
7215 | } | |
7216 | ||
8c9f3aaf JB |
7217 | static int intel_gen2_queue_flip(struct drm_device *dev, |
7218 | struct drm_crtc *crtc, | |
7219 | struct drm_framebuffer *fb, | |
7220 | struct drm_i915_gem_object *obj) | |
7221 | { | |
7222 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7223 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 7224 | u32 flip_mask; |
6d90c952 | 7225 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7226 | int ret; |
7227 | ||
6d90c952 | 7228 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7229 | if (ret) |
83d4092b | 7230 | goto err; |
8c9f3aaf | 7231 | |
6d90c952 | 7232 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 7233 | if (ret) |
83d4092b | 7234 | goto err_unpin; |
8c9f3aaf JB |
7235 | |
7236 | /* Can't queue multiple flips, so wait for the previous | |
7237 | * one to finish before executing the next. | |
7238 | */ | |
7239 | if (intel_crtc->plane) | |
7240 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
7241 | else | |
7242 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
7243 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
7244 | intel_ring_emit(ring, MI_NOOP); | |
7245 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
7246 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7247 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 7248 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 | 7249 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
e7d841ca CW |
7250 | |
7251 | intel_mark_page_flip_active(intel_crtc); | |
6d90c952 | 7252 | intel_ring_advance(ring); |
83d4092b CW |
7253 | return 0; |
7254 | ||
7255 | err_unpin: | |
7256 | intel_unpin_fb_obj(obj); | |
7257 | err: | |
8c9f3aaf JB |
7258 | return ret; |
7259 | } | |
7260 | ||
7261 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
7262 | struct drm_crtc *crtc, | |
7263 | struct drm_framebuffer *fb, | |
7264 | struct drm_i915_gem_object *obj) | |
7265 | { | |
7266 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7267 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 7268 | u32 flip_mask; |
6d90c952 | 7269 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7270 | int ret; |
7271 | ||
6d90c952 | 7272 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7273 | if (ret) |
83d4092b | 7274 | goto err; |
8c9f3aaf | 7275 | |
6d90c952 | 7276 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 7277 | if (ret) |
83d4092b | 7278 | goto err_unpin; |
8c9f3aaf JB |
7279 | |
7280 | if (intel_crtc->plane) | |
7281 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
7282 | else | |
7283 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
7284 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
7285 | intel_ring_emit(ring, MI_NOOP); | |
7286 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
7287 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7288 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 7289 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
7290 | intel_ring_emit(ring, MI_NOOP); |
7291 | ||
e7d841ca | 7292 | intel_mark_page_flip_active(intel_crtc); |
6d90c952 | 7293 | intel_ring_advance(ring); |
83d4092b CW |
7294 | return 0; |
7295 | ||
7296 | err_unpin: | |
7297 | intel_unpin_fb_obj(obj); | |
7298 | err: | |
8c9f3aaf JB |
7299 | return ret; |
7300 | } | |
7301 | ||
7302 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
7303 | struct drm_crtc *crtc, | |
7304 | struct drm_framebuffer *fb, | |
7305 | struct drm_i915_gem_object *obj) | |
7306 | { | |
7307 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7308 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7309 | uint32_t pf, pipesrc; | |
6d90c952 | 7310 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7311 | int ret; |
7312 | ||
6d90c952 | 7313 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7314 | if (ret) |
83d4092b | 7315 | goto err; |
8c9f3aaf | 7316 | |
6d90c952 | 7317 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 7318 | if (ret) |
83d4092b | 7319 | goto err_unpin; |
8c9f3aaf JB |
7320 | |
7321 | /* i965+ uses the linear or tiled offsets from the | |
7322 | * Display Registers (which do not change across a page-flip) | |
7323 | * so we need only reprogram the base address. | |
7324 | */ | |
6d90c952 DV |
7325 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
7326 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7327 | intel_ring_emit(ring, fb->pitches[0]); | |
c2c75131 DV |
7328 | intel_ring_emit(ring, |
7329 | (obj->gtt_offset + intel_crtc->dspaddr_offset) | | |
7330 | obj->tiling_mode); | |
8c9f3aaf JB |
7331 | |
7332 | /* XXX Enabling the panel-fitter across page-flip is so far | |
7333 | * untested on non-native modes, so ignore it for now. | |
7334 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
7335 | */ | |
7336 | pf = 0; | |
7337 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 | 7338 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca CW |
7339 | |
7340 | intel_mark_page_flip_active(intel_crtc); | |
6d90c952 | 7341 | intel_ring_advance(ring); |
83d4092b CW |
7342 | return 0; |
7343 | ||
7344 | err_unpin: | |
7345 | intel_unpin_fb_obj(obj); | |
7346 | err: | |
8c9f3aaf JB |
7347 | return ret; |
7348 | } | |
7349 | ||
7350 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
7351 | struct drm_crtc *crtc, | |
7352 | struct drm_framebuffer *fb, | |
7353 | struct drm_i915_gem_object *obj) | |
7354 | { | |
7355 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7356 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6d90c952 | 7357 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7358 | uint32_t pf, pipesrc; |
7359 | int ret; | |
7360 | ||
6d90c952 | 7361 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7362 | if (ret) |
83d4092b | 7363 | goto err; |
8c9f3aaf | 7364 | |
6d90c952 | 7365 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 7366 | if (ret) |
83d4092b | 7367 | goto err_unpin; |
8c9f3aaf | 7368 | |
6d90c952 DV |
7369 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
7370 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7371 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
c2c75131 | 7372 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
8c9f3aaf | 7373 | |
dc257cf1 DV |
7374 | /* Contrary to the suggestions in the documentation, |
7375 | * "Enable Panel Fitter" does not seem to be required when page | |
7376 | * flipping with a non-native mode, and worse causes a normal | |
7377 | * modeset to fail. | |
7378 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
7379 | */ | |
7380 | pf = 0; | |
8c9f3aaf | 7381 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 | 7382 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca CW |
7383 | |
7384 | intel_mark_page_flip_active(intel_crtc); | |
6d90c952 | 7385 | intel_ring_advance(ring); |
83d4092b CW |
7386 | return 0; |
7387 | ||
7388 | err_unpin: | |
7389 | intel_unpin_fb_obj(obj); | |
7390 | err: | |
8c9f3aaf JB |
7391 | return ret; |
7392 | } | |
7393 | ||
7c9017e5 JB |
7394 | /* |
7395 | * On gen7 we currently use the blit ring because (in early silicon at least) | |
7396 | * the render ring doesn't give us interrpts for page flip completion, which | |
7397 | * means clients will hang after the first flip is queued. Fortunately the | |
7398 | * blit ring generates interrupts properly, so use it instead. | |
7399 | */ | |
7400 | static int intel_gen7_queue_flip(struct drm_device *dev, | |
7401 | struct drm_crtc *crtc, | |
7402 | struct drm_framebuffer *fb, | |
7403 | struct drm_i915_gem_object *obj) | |
7404 | { | |
7405 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7406 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7407 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; | |
cb05d8de | 7408 | uint32_t plane_bit = 0; |
7c9017e5 JB |
7409 | int ret; |
7410 | ||
7411 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); | |
7412 | if (ret) | |
83d4092b | 7413 | goto err; |
7c9017e5 | 7414 | |
cb05d8de DV |
7415 | switch(intel_crtc->plane) { |
7416 | case PLANE_A: | |
7417 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
7418 | break; | |
7419 | case PLANE_B: | |
7420 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
7421 | break; | |
7422 | case PLANE_C: | |
7423 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
7424 | break; | |
7425 | default: | |
7426 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
7427 | ret = -ENODEV; | |
ab3951eb | 7428 | goto err_unpin; |
cb05d8de DV |
7429 | } |
7430 | ||
7c9017e5 JB |
7431 | ret = intel_ring_begin(ring, 4); |
7432 | if (ret) | |
83d4092b | 7433 | goto err_unpin; |
7c9017e5 | 7434 | |
cb05d8de | 7435 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 7436 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
c2c75131 | 7437 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
7c9017e5 | 7438 | intel_ring_emit(ring, (MI_NOOP)); |
e7d841ca CW |
7439 | |
7440 | intel_mark_page_flip_active(intel_crtc); | |
7c9017e5 | 7441 | intel_ring_advance(ring); |
83d4092b CW |
7442 | return 0; |
7443 | ||
7444 | err_unpin: | |
7445 | intel_unpin_fb_obj(obj); | |
7446 | err: | |
7c9017e5 JB |
7447 | return ret; |
7448 | } | |
7449 | ||
8c9f3aaf JB |
7450 | static int intel_default_queue_flip(struct drm_device *dev, |
7451 | struct drm_crtc *crtc, | |
7452 | struct drm_framebuffer *fb, | |
7453 | struct drm_i915_gem_object *obj) | |
7454 | { | |
7455 | return -ENODEV; | |
7456 | } | |
7457 | ||
6b95a207 KH |
7458 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
7459 | struct drm_framebuffer *fb, | |
7460 | struct drm_pending_vblank_event *event) | |
7461 | { | |
7462 | struct drm_device *dev = crtc->dev; | |
7463 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4a35f83b VS |
7464 | struct drm_framebuffer *old_fb = crtc->fb; |
7465 | struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj; | |
6b95a207 KH |
7466 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
7467 | struct intel_unpin_work *work; | |
8c9f3aaf | 7468 | unsigned long flags; |
52e68630 | 7469 | int ret; |
6b95a207 | 7470 | |
e6a595d2 VS |
7471 | /* Can't change pixel format via MI display flips. */ |
7472 | if (fb->pixel_format != crtc->fb->pixel_format) | |
7473 | return -EINVAL; | |
7474 | ||
7475 | /* | |
7476 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
7477 | * Note that pitch changes could also affect these register. | |
7478 | */ | |
7479 | if (INTEL_INFO(dev)->gen > 3 && | |
7480 | (fb->offsets[0] != crtc->fb->offsets[0] || | |
7481 | fb->pitches[0] != crtc->fb->pitches[0])) | |
7482 | return -EINVAL; | |
7483 | ||
6b95a207 KH |
7484 | work = kzalloc(sizeof *work, GFP_KERNEL); |
7485 | if (work == NULL) | |
7486 | return -ENOMEM; | |
7487 | ||
6b95a207 | 7488 | work->event = event; |
b4a98e57 | 7489 | work->crtc = crtc; |
4a35f83b | 7490 | work->old_fb_obj = to_intel_framebuffer(old_fb)->obj; |
6b95a207 KH |
7491 | INIT_WORK(&work->work, intel_unpin_work_fn); |
7492 | ||
7317c75e JB |
7493 | ret = drm_vblank_get(dev, intel_crtc->pipe); |
7494 | if (ret) | |
7495 | goto free_work; | |
7496 | ||
6b95a207 KH |
7497 | /* We borrow the event spin lock for protecting unpin_work */ |
7498 | spin_lock_irqsave(&dev->event_lock, flags); | |
7499 | if (intel_crtc->unpin_work) { | |
7500 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7501 | kfree(work); | |
7317c75e | 7502 | drm_vblank_put(dev, intel_crtc->pipe); |
468f0b44 CW |
7503 | |
7504 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
6b95a207 KH |
7505 | return -EBUSY; |
7506 | } | |
7507 | intel_crtc->unpin_work = work; | |
7508 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7509 | ||
b4a98e57 CW |
7510 | if (atomic_read(&intel_crtc->unpin_work_count) >= 2) |
7511 | flush_workqueue(dev_priv->wq); | |
7512 | ||
79158103 CW |
7513 | ret = i915_mutex_lock_interruptible(dev); |
7514 | if (ret) | |
7515 | goto cleanup; | |
6b95a207 | 7516 | |
75dfca80 | 7517 | /* Reference the objects for the scheduled work. */ |
05394f39 CW |
7518 | drm_gem_object_reference(&work->old_fb_obj->base); |
7519 | drm_gem_object_reference(&obj->base); | |
6b95a207 KH |
7520 | |
7521 | crtc->fb = fb; | |
96b099fd | 7522 | |
e1f99ce6 | 7523 | work->pending_flip_obj = obj; |
e1f99ce6 | 7524 | |
4e5359cd SF |
7525 | work->enable_stall_check = true; |
7526 | ||
b4a98e57 | 7527 | atomic_inc(&intel_crtc->unpin_work_count); |
10d83730 | 7528 | intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
e1f99ce6 | 7529 | |
8c9f3aaf JB |
7530 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); |
7531 | if (ret) | |
7532 | goto cleanup_pending; | |
6b95a207 | 7533 | |
7782de3b | 7534 | intel_disable_fbc(dev); |
f047e395 | 7535 | intel_mark_fb_busy(obj); |
6b95a207 KH |
7536 | mutex_unlock(&dev->struct_mutex); |
7537 | ||
e5510fac JB |
7538 | trace_i915_flip_request(intel_crtc->plane, obj); |
7539 | ||
6b95a207 | 7540 | return 0; |
96b099fd | 7541 | |
8c9f3aaf | 7542 | cleanup_pending: |
b4a98e57 | 7543 | atomic_dec(&intel_crtc->unpin_work_count); |
4a35f83b | 7544 | crtc->fb = old_fb; |
05394f39 CW |
7545 | drm_gem_object_unreference(&work->old_fb_obj->base); |
7546 | drm_gem_object_unreference(&obj->base); | |
96b099fd CW |
7547 | mutex_unlock(&dev->struct_mutex); |
7548 | ||
79158103 | 7549 | cleanup: |
96b099fd CW |
7550 | spin_lock_irqsave(&dev->event_lock, flags); |
7551 | intel_crtc->unpin_work = NULL; | |
7552 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7553 | ||
7317c75e JB |
7554 | drm_vblank_put(dev, intel_crtc->pipe); |
7555 | free_work: | |
96b099fd CW |
7556 | kfree(work); |
7557 | ||
7558 | return ret; | |
6b95a207 KH |
7559 | } |
7560 | ||
f6e5b160 | 7561 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 CW |
7562 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
7563 | .load_lut = intel_crtc_load_lut, | |
f6e5b160 CW |
7564 | }; |
7565 | ||
50f56119 DV |
7566 | static bool intel_encoder_crtc_ok(struct drm_encoder *encoder, |
7567 | struct drm_crtc *crtc) | |
7568 | { | |
7569 | struct drm_device *dev; | |
7570 | struct drm_crtc *tmp; | |
7571 | int crtc_mask = 1; | |
47f1c6c9 | 7572 | |
50f56119 | 7573 | WARN(!crtc, "checking null crtc?\n"); |
47f1c6c9 | 7574 | |
50f56119 | 7575 | dev = crtc->dev; |
47f1c6c9 | 7576 | |
50f56119 DV |
7577 | list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) { |
7578 | if (tmp == crtc) | |
7579 | break; | |
7580 | crtc_mask <<= 1; | |
7581 | } | |
47f1c6c9 | 7582 | |
50f56119 DV |
7583 | if (encoder->possible_crtcs & crtc_mask) |
7584 | return true; | |
7585 | return false; | |
47f1c6c9 | 7586 | } |
79e53945 | 7587 | |
9a935856 DV |
7588 | /** |
7589 | * intel_modeset_update_staged_output_state | |
7590 | * | |
7591 | * Updates the staged output configuration state, e.g. after we've read out the | |
7592 | * current hw state. | |
7593 | */ | |
7594 | static void intel_modeset_update_staged_output_state(struct drm_device *dev) | |
f6e5b160 | 7595 | { |
9a935856 DV |
7596 | struct intel_encoder *encoder; |
7597 | struct intel_connector *connector; | |
f6e5b160 | 7598 | |
9a935856 DV |
7599 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7600 | base.head) { | |
7601 | connector->new_encoder = | |
7602 | to_intel_encoder(connector->base.encoder); | |
7603 | } | |
f6e5b160 | 7604 | |
9a935856 DV |
7605 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7606 | base.head) { | |
7607 | encoder->new_crtc = | |
7608 | to_intel_crtc(encoder->base.crtc); | |
7609 | } | |
f6e5b160 CW |
7610 | } |
7611 | ||
9a935856 DV |
7612 | /** |
7613 | * intel_modeset_commit_output_state | |
7614 | * | |
7615 | * This function copies the stage display pipe configuration to the real one. | |
7616 | */ | |
7617 | static void intel_modeset_commit_output_state(struct drm_device *dev) | |
7618 | { | |
7619 | struct intel_encoder *encoder; | |
7620 | struct intel_connector *connector; | |
f6e5b160 | 7621 | |
9a935856 DV |
7622 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7623 | base.head) { | |
7624 | connector->base.encoder = &connector->new_encoder->base; | |
7625 | } | |
f6e5b160 | 7626 | |
9a935856 DV |
7627 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7628 | base.head) { | |
7629 | encoder->base.crtc = &encoder->new_crtc->base; | |
7630 | } | |
7631 | } | |
7632 | ||
050f7aeb DV |
7633 | static void |
7634 | connected_sink_compute_bpp(struct intel_connector * connector, | |
7635 | struct intel_crtc_config *pipe_config) | |
7636 | { | |
7637 | int bpp = pipe_config->pipe_bpp; | |
7638 | ||
7639 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n", | |
7640 | connector->base.base.id, | |
7641 | drm_get_connector_name(&connector->base)); | |
7642 | ||
7643 | /* Don't use an invalid EDID bpc value */ | |
7644 | if (connector->base.display_info.bpc && | |
7645 | connector->base.display_info.bpc * 3 < bpp) { | |
7646 | DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n", | |
7647 | bpp, connector->base.display_info.bpc*3); | |
7648 | pipe_config->pipe_bpp = connector->base.display_info.bpc*3; | |
7649 | } | |
7650 | ||
7651 | /* Clamp bpp to 8 on screens without EDID 1.4 */ | |
7652 | if (connector->base.display_info.bpc == 0 && bpp > 24) { | |
7653 | DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n", | |
7654 | bpp); | |
7655 | pipe_config->pipe_bpp = 24; | |
7656 | } | |
7657 | } | |
7658 | ||
4e53c2e0 | 7659 | static int |
050f7aeb DV |
7660 | compute_baseline_pipe_bpp(struct intel_crtc *crtc, |
7661 | struct drm_framebuffer *fb, | |
7662 | struct intel_crtc_config *pipe_config) | |
4e53c2e0 | 7663 | { |
050f7aeb DV |
7664 | struct drm_device *dev = crtc->base.dev; |
7665 | struct intel_connector *connector; | |
4e53c2e0 DV |
7666 | int bpp; |
7667 | ||
d42264b1 DV |
7668 | switch (fb->pixel_format) { |
7669 | case DRM_FORMAT_C8: | |
4e53c2e0 DV |
7670 | bpp = 8*3; /* since we go through a colormap */ |
7671 | break; | |
d42264b1 DV |
7672 | case DRM_FORMAT_XRGB1555: |
7673 | case DRM_FORMAT_ARGB1555: | |
7674 | /* checked in intel_framebuffer_init already */ | |
7675 | if (WARN_ON(INTEL_INFO(dev)->gen > 3)) | |
7676 | return -EINVAL; | |
7677 | case DRM_FORMAT_RGB565: | |
4e53c2e0 DV |
7678 | bpp = 6*3; /* min is 18bpp */ |
7679 | break; | |
d42264b1 DV |
7680 | case DRM_FORMAT_XBGR8888: |
7681 | case DRM_FORMAT_ABGR8888: | |
7682 | /* checked in intel_framebuffer_init already */ | |
7683 | if (WARN_ON(INTEL_INFO(dev)->gen < 4)) | |
7684 | return -EINVAL; | |
7685 | case DRM_FORMAT_XRGB8888: | |
7686 | case DRM_FORMAT_ARGB8888: | |
4e53c2e0 DV |
7687 | bpp = 8*3; |
7688 | break; | |
d42264b1 DV |
7689 | case DRM_FORMAT_XRGB2101010: |
7690 | case DRM_FORMAT_ARGB2101010: | |
7691 | case DRM_FORMAT_XBGR2101010: | |
7692 | case DRM_FORMAT_ABGR2101010: | |
7693 | /* checked in intel_framebuffer_init already */ | |
7694 | if (WARN_ON(INTEL_INFO(dev)->gen < 4)) | |
baba133a | 7695 | return -EINVAL; |
4e53c2e0 DV |
7696 | bpp = 10*3; |
7697 | break; | |
baba133a | 7698 | /* TODO: gen4+ supports 16 bpc floating point, too. */ |
4e53c2e0 DV |
7699 | default: |
7700 | DRM_DEBUG_KMS("unsupported depth\n"); | |
7701 | return -EINVAL; | |
7702 | } | |
7703 | ||
4e53c2e0 DV |
7704 | pipe_config->pipe_bpp = bpp; |
7705 | ||
7706 | /* Clamp display bpp to EDID value */ | |
7707 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
050f7aeb | 7708 | base.head) { |
1b829e05 DV |
7709 | if (!connector->new_encoder || |
7710 | connector->new_encoder->new_crtc != crtc) | |
4e53c2e0 DV |
7711 | continue; |
7712 | ||
050f7aeb | 7713 | connected_sink_compute_bpp(connector, pipe_config); |
4e53c2e0 DV |
7714 | } |
7715 | ||
7716 | return bpp; | |
7717 | } | |
7718 | ||
c0b03411 DV |
7719 | static void intel_dump_pipe_config(struct intel_crtc *crtc, |
7720 | struct intel_crtc_config *pipe_config, | |
7721 | const char *context) | |
7722 | { | |
7723 | DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id, | |
7724 | context, pipe_name(crtc->pipe)); | |
7725 | ||
7726 | DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder)); | |
7727 | DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n", | |
7728 | pipe_config->pipe_bpp, pipe_config->dither); | |
7729 | DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", | |
7730 | pipe_config->has_pch_encoder, | |
7731 | pipe_config->fdi_lanes, | |
7732 | pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n, | |
7733 | pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n, | |
7734 | pipe_config->fdi_m_n.tu); | |
7735 | DRM_DEBUG_KMS("requested mode:\n"); | |
7736 | drm_mode_debug_printmodeline(&pipe_config->requested_mode); | |
7737 | DRM_DEBUG_KMS("adjusted mode:\n"); | |
7738 | drm_mode_debug_printmodeline(&pipe_config->adjusted_mode); | |
7739 | DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n", | |
7740 | pipe_config->gmch_pfit.control, | |
7741 | pipe_config->gmch_pfit.pgm_ratios, | |
7742 | pipe_config->gmch_pfit.lvds_border_bits); | |
7743 | DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x\n", | |
7744 | pipe_config->pch_pfit.pos, | |
7745 | pipe_config->pch_pfit.size); | |
42db64ef | 7746 | DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled); |
c0b03411 DV |
7747 | } |
7748 | ||
accfc0c5 DV |
7749 | static bool check_encoder_cloning(struct drm_crtc *crtc) |
7750 | { | |
7751 | int num_encoders = 0; | |
7752 | bool uncloneable_encoders = false; | |
7753 | struct intel_encoder *encoder; | |
7754 | ||
7755 | list_for_each_entry(encoder, &crtc->dev->mode_config.encoder_list, | |
7756 | base.head) { | |
7757 | if (&encoder->new_crtc->base != crtc) | |
7758 | continue; | |
7759 | ||
7760 | num_encoders++; | |
7761 | if (!encoder->cloneable) | |
7762 | uncloneable_encoders = true; | |
7763 | } | |
7764 | ||
7765 | return !(num_encoders > 1 && uncloneable_encoders); | |
7766 | } | |
7767 | ||
b8cecdf5 DV |
7768 | static struct intel_crtc_config * |
7769 | intel_modeset_pipe_config(struct drm_crtc *crtc, | |
4e53c2e0 | 7770 | struct drm_framebuffer *fb, |
b8cecdf5 | 7771 | struct drm_display_mode *mode) |
ee7b9f93 | 7772 | { |
7758a113 | 7773 | struct drm_device *dev = crtc->dev; |
7758a113 DV |
7774 | struct drm_encoder_helper_funcs *encoder_funcs; |
7775 | struct intel_encoder *encoder; | |
b8cecdf5 | 7776 | struct intel_crtc_config *pipe_config; |
e29c22c0 DV |
7777 | int plane_bpp, ret = -EINVAL; |
7778 | bool retry = true; | |
ee7b9f93 | 7779 | |
accfc0c5 DV |
7780 | if (!check_encoder_cloning(crtc)) { |
7781 | DRM_DEBUG_KMS("rejecting invalid cloning configuration\n"); | |
7782 | return ERR_PTR(-EINVAL); | |
7783 | } | |
7784 | ||
b8cecdf5 DV |
7785 | pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL); |
7786 | if (!pipe_config) | |
7758a113 DV |
7787 | return ERR_PTR(-ENOMEM); |
7788 | ||
b8cecdf5 DV |
7789 | drm_mode_copy(&pipe_config->adjusted_mode, mode); |
7790 | drm_mode_copy(&pipe_config->requested_mode, mode); | |
eccb140b | 7791 | pipe_config->cpu_transcoder = to_intel_crtc(crtc)->pipe; |
b8cecdf5 | 7792 | |
050f7aeb DV |
7793 | /* Compute a starting value for pipe_config->pipe_bpp taking the source |
7794 | * plane pixel format and any sink constraints into account. Returns the | |
7795 | * source plane bpp so that dithering can be selected on mismatches | |
7796 | * after encoders and crtc also have had their say. */ | |
7797 | plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc), | |
7798 | fb, pipe_config); | |
4e53c2e0 DV |
7799 | if (plane_bpp < 0) |
7800 | goto fail; | |
7801 | ||
e29c22c0 | 7802 | encoder_retry: |
ef1b460d | 7803 | /* Ensure the port clock defaults are reset when retrying. */ |
ff9a6750 | 7804 | pipe_config->port_clock = 0; |
ef1b460d | 7805 | pipe_config->pixel_multiplier = 1; |
ff9a6750 | 7806 | |
7758a113 DV |
7807 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
7808 | * adjust it according to limitations or connector properties, and also | |
7809 | * a chance to reject the mode entirely. | |
47f1c6c9 | 7810 | */ |
7758a113 DV |
7811 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7812 | base.head) { | |
47f1c6c9 | 7813 | |
7758a113 DV |
7814 | if (&encoder->new_crtc->base != crtc) |
7815 | continue; | |
7ae89233 DV |
7816 | |
7817 | if (encoder->compute_config) { | |
7818 | if (!(encoder->compute_config(encoder, pipe_config))) { | |
7819 | DRM_DEBUG_KMS("Encoder config failure\n"); | |
7820 | goto fail; | |
7821 | } | |
7822 | ||
7823 | continue; | |
7824 | } | |
7825 | ||
7758a113 | 7826 | encoder_funcs = encoder->base.helper_private; |
b8cecdf5 DV |
7827 | if (!(encoder_funcs->mode_fixup(&encoder->base, |
7828 | &pipe_config->requested_mode, | |
7829 | &pipe_config->adjusted_mode))) { | |
7758a113 DV |
7830 | DRM_DEBUG_KMS("Encoder fixup failed\n"); |
7831 | goto fail; | |
7832 | } | |
ee7b9f93 | 7833 | } |
47f1c6c9 | 7834 | |
ff9a6750 DV |
7835 | /* Set default port clock if not overwritten by the encoder. Needs to be |
7836 | * done afterwards in case the encoder adjusts the mode. */ | |
7837 | if (!pipe_config->port_clock) | |
7838 | pipe_config->port_clock = pipe_config->adjusted_mode.clock; | |
7839 | ||
e29c22c0 DV |
7840 | ret = intel_crtc_compute_config(crtc, pipe_config); |
7841 | if (ret < 0) { | |
7758a113 DV |
7842 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
7843 | goto fail; | |
ee7b9f93 | 7844 | } |
e29c22c0 DV |
7845 | |
7846 | if (ret == RETRY) { | |
7847 | if (WARN(!retry, "loop in pipe configuration computation\n")) { | |
7848 | ret = -EINVAL; | |
7849 | goto fail; | |
7850 | } | |
7851 | ||
7852 | DRM_DEBUG_KMS("CRTC bw constrained, retrying\n"); | |
7853 | retry = false; | |
7854 | goto encoder_retry; | |
7855 | } | |
7856 | ||
4e53c2e0 DV |
7857 | pipe_config->dither = pipe_config->pipe_bpp != plane_bpp; |
7858 | DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n", | |
7859 | plane_bpp, pipe_config->pipe_bpp, pipe_config->dither); | |
7860 | ||
b8cecdf5 | 7861 | return pipe_config; |
7758a113 | 7862 | fail: |
b8cecdf5 | 7863 | kfree(pipe_config); |
e29c22c0 | 7864 | return ERR_PTR(ret); |
ee7b9f93 | 7865 | } |
47f1c6c9 | 7866 | |
e2e1ed41 DV |
7867 | /* Computes which crtcs are affected and sets the relevant bits in the mask. For |
7868 | * simplicity we use the crtc's pipe number (because it's easier to obtain). */ | |
7869 | static void | |
7870 | intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes, | |
7871 | unsigned *prepare_pipes, unsigned *disable_pipes) | |
79e53945 JB |
7872 | { |
7873 | struct intel_crtc *intel_crtc; | |
e2e1ed41 DV |
7874 | struct drm_device *dev = crtc->dev; |
7875 | struct intel_encoder *encoder; | |
7876 | struct intel_connector *connector; | |
7877 | struct drm_crtc *tmp_crtc; | |
79e53945 | 7878 | |
e2e1ed41 | 7879 | *disable_pipes = *modeset_pipes = *prepare_pipes = 0; |
79e53945 | 7880 | |
e2e1ed41 DV |
7881 | /* Check which crtcs have changed outputs connected to them, these need |
7882 | * to be part of the prepare_pipes mask. We don't (yet) support global | |
7883 | * modeset across multiple crtcs, so modeset_pipes will only have one | |
7884 | * bit set at most. */ | |
7885 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
7886 | base.head) { | |
7887 | if (connector->base.encoder == &connector->new_encoder->base) | |
7888 | continue; | |
79e53945 | 7889 | |
e2e1ed41 DV |
7890 | if (connector->base.encoder) { |
7891 | tmp_crtc = connector->base.encoder->crtc; | |
7892 | ||
7893 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
7894 | } | |
7895 | ||
7896 | if (connector->new_encoder) | |
7897 | *prepare_pipes |= | |
7898 | 1 << connector->new_encoder->new_crtc->pipe; | |
79e53945 JB |
7899 | } |
7900 | ||
e2e1ed41 DV |
7901 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7902 | base.head) { | |
7903 | if (encoder->base.crtc == &encoder->new_crtc->base) | |
7904 | continue; | |
7905 | ||
7906 | if (encoder->base.crtc) { | |
7907 | tmp_crtc = encoder->base.crtc; | |
7908 | ||
7909 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
7910 | } | |
7911 | ||
7912 | if (encoder->new_crtc) | |
7913 | *prepare_pipes |= 1 << encoder->new_crtc->pipe; | |
80824003 JB |
7914 | } |
7915 | ||
e2e1ed41 DV |
7916 | /* Check for any pipes that will be fully disabled ... */ |
7917 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
7918 | base.head) { | |
7919 | bool used = false; | |
22fd0fab | 7920 | |
e2e1ed41 DV |
7921 | /* Don't try to disable disabled crtcs. */ |
7922 | if (!intel_crtc->base.enabled) | |
7923 | continue; | |
7e7d76c3 | 7924 | |
e2e1ed41 DV |
7925 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7926 | base.head) { | |
7927 | if (encoder->new_crtc == intel_crtc) | |
7928 | used = true; | |
7929 | } | |
7930 | ||
7931 | if (!used) | |
7932 | *disable_pipes |= 1 << intel_crtc->pipe; | |
7e7d76c3 JB |
7933 | } |
7934 | ||
e2e1ed41 DV |
7935 | |
7936 | /* set_mode is also used to update properties on life display pipes. */ | |
7937 | intel_crtc = to_intel_crtc(crtc); | |
7938 | if (crtc->enabled) | |
7939 | *prepare_pipes |= 1 << intel_crtc->pipe; | |
7940 | ||
b6c5164d DV |
7941 | /* |
7942 | * For simplicity do a full modeset on any pipe where the output routing | |
7943 | * changed. We could be more clever, but that would require us to be | |
7944 | * more careful with calling the relevant encoder->mode_set functions. | |
7945 | */ | |
e2e1ed41 DV |
7946 | if (*prepare_pipes) |
7947 | *modeset_pipes = *prepare_pipes; | |
7948 | ||
7949 | /* ... and mask these out. */ | |
7950 | *modeset_pipes &= ~(*disable_pipes); | |
7951 | *prepare_pipes &= ~(*disable_pipes); | |
b6c5164d DV |
7952 | |
7953 | /* | |
7954 | * HACK: We don't (yet) fully support global modesets. intel_set_config | |
7955 | * obies this rule, but the modeset restore mode of | |
7956 | * intel_modeset_setup_hw_state does not. | |
7957 | */ | |
7958 | *modeset_pipes &= 1 << intel_crtc->pipe; | |
7959 | *prepare_pipes &= 1 << intel_crtc->pipe; | |
e3641d3f DV |
7960 | |
7961 | DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n", | |
7962 | *modeset_pipes, *prepare_pipes, *disable_pipes); | |
47f1c6c9 | 7963 | } |
79e53945 | 7964 | |
ea9d758d | 7965 | static bool intel_crtc_in_use(struct drm_crtc *crtc) |
f6e5b160 | 7966 | { |
ea9d758d | 7967 | struct drm_encoder *encoder; |
f6e5b160 | 7968 | struct drm_device *dev = crtc->dev; |
f6e5b160 | 7969 | |
ea9d758d DV |
7970 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
7971 | if (encoder->crtc == crtc) | |
7972 | return true; | |
7973 | ||
7974 | return false; | |
7975 | } | |
7976 | ||
7977 | static void | |
7978 | intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes) | |
7979 | { | |
7980 | struct intel_encoder *intel_encoder; | |
7981 | struct intel_crtc *intel_crtc; | |
7982 | struct drm_connector *connector; | |
7983 | ||
7984 | list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list, | |
7985 | base.head) { | |
7986 | if (!intel_encoder->base.crtc) | |
7987 | continue; | |
7988 | ||
7989 | intel_crtc = to_intel_crtc(intel_encoder->base.crtc); | |
7990 | ||
7991 | if (prepare_pipes & (1 << intel_crtc->pipe)) | |
7992 | intel_encoder->connectors_active = false; | |
7993 | } | |
7994 | ||
7995 | intel_modeset_commit_output_state(dev); | |
7996 | ||
7997 | /* Update computed state. */ | |
7998 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
7999 | base.head) { | |
8000 | intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base); | |
8001 | } | |
8002 | ||
8003 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
8004 | if (!connector->encoder || !connector->encoder->crtc) | |
8005 | continue; | |
8006 | ||
8007 | intel_crtc = to_intel_crtc(connector->encoder->crtc); | |
8008 | ||
8009 | if (prepare_pipes & (1 << intel_crtc->pipe)) { | |
68d34720 DV |
8010 | struct drm_property *dpms_property = |
8011 | dev->mode_config.dpms_property; | |
8012 | ||
ea9d758d | 8013 | connector->dpms = DRM_MODE_DPMS_ON; |
662595df | 8014 | drm_object_property_set_value(&connector->base, |
68d34720 DV |
8015 | dpms_property, |
8016 | DRM_MODE_DPMS_ON); | |
ea9d758d DV |
8017 | |
8018 | intel_encoder = to_intel_encoder(connector->encoder); | |
8019 | intel_encoder->connectors_active = true; | |
8020 | } | |
8021 | } | |
8022 | ||
8023 | } | |
8024 | ||
25c5b266 DV |
8025 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
8026 | list_for_each_entry((intel_crtc), \ | |
8027 | &(dev)->mode_config.crtc_list, \ | |
8028 | base.head) \ | |
0973f18f | 8029 | if (mask & (1 <<(intel_crtc)->pipe)) |
25c5b266 | 8030 | |
0e8ffe1b | 8031 | static bool |
2fa2fe9a DV |
8032 | intel_pipe_config_compare(struct drm_device *dev, |
8033 | struct intel_crtc_config *current_config, | |
0e8ffe1b DV |
8034 | struct intel_crtc_config *pipe_config) |
8035 | { | |
08a24034 DV |
8036 | #define PIPE_CONF_CHECK_I(name) \ |
8037 | if (current_config->name != pipe_config->name) { \ | |
8038 | DRM_ERROR("mismatch in " #name " " \ | |
8039 | "(expected %i, found %i)\n", \ | |
8040 | current_config->name, \ | |
8041 | pipe_config->name); \ | |
8042 | return false; \ | |
88adfff1 DV |
8043 | } |
8044 | ||
1bd1bd80 DV |
8045 | #define PIPE_CONF_CHECK_FLAGS(name, mask) \ |
8046 | if ((current_config->name ^ pipe_config->name) & (mask)) { \ | |
8047 | DRM_ERROR("mismatch in " #name " " \ | |
8048 | "(expected %i, found %i)\n", \ | |
8049 | current_config->name & (mask), \ | |
8050 | pipe_config->name & (mask)); \ | |
8051 | return false; \ | |
8052 | } | |
8053 | ||
eccb140b DV |
8054 | PIPE_CONF_CHECK_I(cpu_transcoder); |
8055 | ||
08a24034 DV |
8056 | PIPE_CONF_CHECK_I(has_pch_encoder); |
8057 | PIPE_CONF_CHECK_I(fdi_lanes); | |
72419203 DV |
8058 | PIPE_CONF_CHECK_I(fdi_m_n.gmch_m); |
8059 | PIPE_CONF_CHECK_I(fdi_m_n.gmch_n); | |
8060 | PIPE_CONF_CHECK_I(fdi_m_n.link_m); | |
8061 | PIPE_CONF_CHECK_I(fdi_m_n.link_n); | |
8062 | PIPE_CONF_CHECK_I(fdi_m_n.tu); | |
08a24034 | 8063 | |
1bd1bd80 DV |
8064 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay); |
8065 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal); | |
8066 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start); | |
8067 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end); | |
8068 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start); | |
8069 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end); | |
8070 | ||
8071 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay); | |
8072 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal); | |
8073 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start); | |
8074 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end); | |
8075 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start); | |
8076 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end); | |
8077 | ||
8078 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
8079 | DRM_MODE_FLAG_INTERLACE); | |
8080 | ||
045ac3b5 JB |
8081 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, |
8082 | DRM_MODE_FLAG_PHSYNC); | |
8083 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
8084 | DRM_MODE_FLAG_NHSYNC); | |
8085 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
8086 | DRM_MODE_FLAG_PVSYNC); | |
8087 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
8088 | DRM_MODE_FLAG_NVSYNC); | |
8089 | ||
1bd1bd80 DV |
8090 | PIPE_CONF_CHECK_I(requested_mode.hdisplay); |
8091 | PIPE_CONF_CHECK_I(requested_mode.vdisplay); | |
8092 | ||
2fa2fe9a DV |
8093 | PIPE_CONF_CHECK_I(gmch_pfit.control); |
8094 | /* pfit ratios are autocomputed by the hw on gen4+ */ | |
8095 | if (INTEL_INFO(dev)->gen < 4) | |
8096 | PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios); | |
8097 | PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits); | |
8098 | PIPE_CONF_CHECK_I(pch_pfit.pos); | |
8099 | PIPE_CONF_CHECK_I(pch_pfit.size); | |
8100 | ||
42db64ef PZ |
8101 | PIPE_CONF_CHECK_I(ips_enabled); |
8102 | ||
08a24034 | 8103 | #undef PIPE_CONF_CHECK_I |
1bd1bd80 | 8104 | #undef PIPE_CONF_CHECK_FLAGS |
627eb5a3 | 8105 | |
0e8ffe1b DV |
8106 | return true; |
8107 | } | |
8108 | ||
b980514c | 8109 | void |
8af6cf88 DV |
8110 | intel_modeset_check_state(struct drm_device *dev) |
8111 | { | |
0e8ffe1b | 8112 | drm_i915_private_t *dev_priv = dev->dev_private; |
8af6cf88 DV |
8113 | struct intel_crtc *crtc; |
8114 | struct intel_encoder *encoder; | |
8115 | struct intel_connector *connector; | |
0e8ffe1b | 8116 | struct intel_crtc_config pipe_config; |
8af6cf88 DV |
8117 | |
8118 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
8119 | base.head) { | |
8120 | /* This also checks the encoder/connector hw state with the | |
8121 | * ->get_hw_state callbacks. */ | |
8122 | intel_connector_check_state(connector); | |
8123 | ||
8124 | WARN(&connector->new_encoder->base != connector->base.encoder, | |
8125 | "connector's staged encoder doesn't match current encoder\n"); | |
8126 | } | |
8127 | ||
8128 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8129 | base.head) { | |
8130 | bool enabled = false; | |
8131 | bool active = false; | |
8132 | enum pipe pipe, tracked_pipe; | |
8133 | ||
8134 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", | |
8135 | encoder->base.base.id, | |
8136 | drm_get_encoder_name(&encoder->base)); | |
8137 | ||
8138 | WARN(&encoder->new_crtc->base != encoder->base.crtc, | |
8139 | "encoder's stage crtc doesn't match current crtc\n"); | |
8140 | WARN(encoder->connectors_active && !encoder->base.crtc, | |
8141 | "encoder's active_connectors set, but no crtc\n"); | |
8142 | ||
8143 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
8144 | base.head) { | |
8145 | if (connector->base.encoder != &encoder->base) | |
8146 | continue; | |
8147 | enabled = true; | |
8148 | if (connector->base.dpms != DRM_MODE_DPMS_OFF) | |
8149 | active = true; | |
8150 | } | |
8151 | WARN(!!encoder->base.crtc != enabled, | |
8152 | "encoder's enabled state mismatch " | |
8153 | "(expected %i, found %i)\n", | |
8154 | !!encoder->base.crtc, enabled); | |
8155 | WARN(active && !encoder->base.crtc, | |
8156 | "active encoder with no crtc\n"); | |
8157 | ||
8158 | WARN(encoder->connectors_active != active, | |
8159 | "encoder's computed active state doesn't match tracked active state " | |
8160 | "(expected %i, found %i)\n", active, encoder->connectors_active); | |
8161 | ||
8162 | active = encoder->get_hw_state(encoder, &pipe); | |
8163 | WARN(active != encoder->connectors_active, | |
8164 | "encoder's hw state doesn't match sw tracking " | |
8165 | "(expected %i, found %i)\n", | |
8166 | encoder->connectors_active, active); | |
8167 | ||
8168 | if (!encoder->base.crtc) | |
8169 | continue; | |
8170 | ||
8171 | tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe; | |
8172 | WARN(active && pipe != tracked_pipe, | |
8173 | "active encoder's pipe doesn't match" | |
8174 | "(expected %i, found %i)\n", | |
8175 | tracked_pipe, pipe); | |
8176 | ||
8177 | } | |
8178 | ||
8179 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, | |
8180 | base.head) { | |
8181 | bool enabled = false; | |
8182 | bool active = false; | |
8183 | ||
045ac3b5 JB |
8184 | memset(&pipe_config, 0, sizeof(pipe_config)); |
8185 | ||
8af6cf88 DV |
8186 | DRM_DEBUG_KMS("[CRTC:%d]\n", |
8187 | crtc->base.base.id); | |
8188 | ||
8189 | WARN(crtc->active && !crtc->base.enabled, | |
8190 | "active crtc, but not enabled in sw tracking\n"); | |
8191 | ||
8192 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8193 | base.head) { | |
8194 | if (encoder->base.crtc != &crtc->base) | |
8195 | continue; | |
8196 | enabled = true; | |
8197 | if (encoder->connectors_active) | |
8198 | active = true; | |
045ac3b5 JB |
8199 | if (encoder->get_config) |
8200 | encoder->get_config(encoder, &pipe_config); | |
8af6cf88 DV |
8201 | } |
8202 | WARN(active != crtc->active, | |
8203 | "crtc's computed active state doesn't match tracked active state " | |
8204 | "(expected %i, found %i)\n", active, crtc->active); | |
8205 | WARN(enabled != crtc->base.enabled, | |
8206 | "crtc's computed enabled state doesn't match tracked enabled state " | |
8207 | "(expected %i, found %i)\n", enabled, crtc->base.enabled); | |
8208 | ||
0e8ffe1b DV |
8209 | active = dev_priv->display.get_pipe_config(crtc, |
8210 | &pipe_config); | |
8211 | WARN(crtc->active != active, | |
8212 | "crtc active state doesn't match with hw state " | |
8213 | "(expected %i, found %i)\n", crtc->active, active); | |
8214 | ||
c0b03411 DV |
8215 | if (active && |
8216 | !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) { | |
8217 | WARN(1, "pipe state doesn't match!\n"); | |
8218 | intel_dump_pipe_config(crtc, &pipe_config, | |
8219 | "[hw state]"); | |
8220 | intel_dump_pipe_config(crtc, &crtc->config, | |
8221 | "[sw state]"); | |
8222 | } | |
8af6cf88 DV |
8223 | } |
8224 | } | |
8225 | ||
f30da187 DV |
8226 | static int __intel_set_mode(struct drm_crtc *crtc, |
8227 | struct drm_display_mode *mode, | |
8228 | int x, int y, struct drm_framebuffer *fb) | |
a6778b3c DV |
8229 | { |
8230 | struct drm_device *dev = crtc->dev; | |
dbf2b54e | 8231 | drm_i915_private_t *dev_priv = dev->dev_private; |
b8cecdf5 DV |
8232 | struct drm_display_mode *saved_mode, *saved_hwmode; |
8233 | struct intel_crtc_config *pipe_config = NULL; | |
25c5b266 DV |
8234 | struct intel_crtc *intel_crtc; |
8235 | unsigned disable_pipes, prepare_pipes, modeset_pipes; | |
c0c36b94 | 8236 | int ret = 0; |
a6778b3c | 8237 | |
3ac18232 | 8238 | saved_mode = kmalloc(2 * sizeof(*saved_mode), GFP_KERNEL); |
c0c36b94 CW |
8239 | if (!saved_mode) |
8240 | return -ENOMEM; | |
3ac18232 | 8241 | saved_hwmode = saved_mode + 1; |
a6778b3c | 8242 | |
e2e1ed41 | 8243 | intel_modeset_affected_pipes(crtc, &modeset_pipes, |
25c5b266 DV |
8244 | &prepare_pipes, &disable_pipes); |
8245 | ||
3ac18232 TG |
8246 | *saved_hwmode = crtc->hwmode; |
8247 | *saved_mode = crtc->mode; | |
a6778b3c | 8248 | |
25c5b266 DV |
8249 | /* Hack: Because we don't (yet) support global modeset on multiple |
8250 | * crtcs, we don't keep track of the new mode for more than one crtc. | |
8251 | * Hence simply check whether any bit is set in modeset_pipes in all the | |
8252 | * pieces of code that are not yet converted to deal with mutliple crtcs | |
8253 | * changing their mode at the same time. */ | |
25c5b266 | 8254 | if (modeset_pipes) { |
4e53c2e0 | 8255 | pipe_config = intel_modeset_pipe_config(crtc, fb, mode); |
b8cecdf5 DV |
8256 | if (IS_ERR(pipe_config)) { |
8257 | ret = PTR_ERR(pipe_config); | |
8258 | pipe_config = NULL; | |
8259 | ||
3ac18232 | 8260 | goto out; |
25c5b266 | 8261 | } |
c0b03411 DV |
8262 | intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config, |
8263 | "[modeset]"); | |
25c5b266 | 8264 | } |
a6778b3c | 8265 | |
460da916 DV |
8266 | for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) |
8267 | intel_crtc_disable(&intel_crtc->base); | |
8268 | ||
ea9d758d DV |
8269 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) { |
8270 | if (intel_crtc->base.enabled) | |
8271 | dev_priv->display.crtc_disable(&intel_crtc->base); | |
8272 | } | |
a6778b3c | 8273 | |
6c4c86f5 DV |
8274 | /* crtc->mode is already used by the ->mode_set callbacks, hence we need |
8275 | * to set it here already despite that we pass it down the callchain. | |
f6e5b160 | 8276 | */ |
b8cecdf5 | 8277 | if (modeset_pipes) { |
25c5b266 | 8278 | crtc->mode = *mode; |
b8cecdf5 DV |
8279 | /* mode_set/enable/disable functions rely on a correct pipe |
8280 | * config. */ | |
8281 | to_intel_crtc(crtc)->config = *pipe_config; | |
8282 | } | |
7758a113 | 8283 | |
ea9d758d DV |
8284 | /* Only after disabling all output pipelines that will be changed can we |
8285 | * update the the output configuration. */ | |
8286 | intel_modeset_update_state(dev, prepare_pipes); | |
f6e5b160 | 8287 | |
47fab737 DV |
8288 | if (dev_priv->display.modeset_global_resources) |
8289 | dev_priv->display.modeset_global_resources(dev); | |
8290 | ||
a6778b3c DV |
8291 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
8292 | * on the DPLL. | |
f6e5b160 | 8293 | */ |
25c5b266 | 8294 | for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { |
c0c36b94 | 8295 | ret = intel_crtc_mode_set(&intel_crtc->base, |
c0c36b94 CW |
8296 | x, y, fb); |
8297 | if (ret) | |
8298 | goto done; | |
a6778b3c DV |
8299 | } |
8300 | ||
8301 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ | |
25c5b266 DV |
8302 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) |
8303 | dev_priv->display.crtc_enable(&intel_crtc->base); | |
a6778b3c | 8304 | |
25c5b266 DV |
8305 | if (modeset_pipes) { |
8306 | /* Store real post-adjustment hardware mode. */ | |
b8cecdf5 | 8307 | crtc->hwmode = pipe_config->adjusted_mode; |
a6778b3c | 8308 | |
25c5b266 DV |
8309 | /* Calculate and store various constants which |
8310 | * are later needed by vblank and swap-completion | |
8311 | * timestamping. They are derived from true hwmode. | |
8312 | */ | |
8313 | drm_calc_timestamping_constants(crtc); | |
8314 | } | |
a6778b3c DV |
8315 | |
8316 | /* FIXME: add subpixel order */ | |
8317 | done: | |
c0c36b94 | 8318 | if (ret && crtc->enabled) { |
3ac18232 TG |
8319 | crtc->hwmode = *saved_hwmode; |
8320 | crtc->mode = *saved_mode; | |
a6778b3c DV |
8321 | } |
8322 | ||
3ac18232 | 8323 | out: |
b8cecdf5 | 8324 | kfree(pipe_config); |
3ac18232 | 8325 | kfree(saved_mode); |
a6778b3c | 8326 | return ret; |
f6e5b160 CW |
8327 | } |
8328 | ||
f30da187 DV |
8329 | int intel_set_mode(struct drm_crtc *crtc, |
8330 | struct drm_display_mode *mode, | |
8331 | int x, int y, struct drm_framebuffer *fb) | |
8332 | { | |
8333 | int ret; | |
8334 | ||
8335 | ret = __intel_set_mode(crtc, mode, x, y, fb); | |
8336 | ||
8337 | if (ret == 0) | |
8338 | intel_modeset_check_state(crtc->dev); | |
8339 | ||
8340 | return ret; | |
8341 | } | |
8342 | ||
c0c36b94 CW |
8343 | void intel_crtc_restore_mode(struct drm_crtc *crtc) |
8344 | { | |
8345 | intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb); | |
8346 | } | |
8347 | ||
25c5b266 DV |
8348 | #undef for_each_intel_crtc_masked |
8349 | ||
d9e55608 DV |
8350 | static void intel_set_config_free(struct intel_set_config *config) |
8351 | { | |
8352 | if (!config) | |
8353 | return; | |
8354 | ||
1aa4b628 DV |
8355 | kfree(config->save_connector_encoders); |
8356 | kfree(config->save_encoder_crtcs); | |
d9e55608 DV |
8357 | kfree(config); |
8358 | } | |
8359 | ||
85f9eb71 DV |
8360 | static int intel_set_config_save_state(struct drm_device *dev, |
8361 | struct intel_set_config *config) | |
8362 | { | |
85f9eb71 DV |
8363 | struct drm_encoder *encoder; |
8364 | struct drm_connector *connector; | |
8365 | int count; | |
8366 | ||
1aa4b628 DV |
8367 | config->save_encoder_crtcs = |
8368 | kcalloc(dev->mode_config.num_encoder, | |
8369 | sizeof(struct drm_crtc *), GFP_KERNEL); | |
8370 | if (!config->save_encoder_crtcs) | |
85f9eb71 DV |
8371 | return -ENOMEM; |
8372 | ||
1aa4b628 DV |
8373 | config->save_connector_encoders = |
8374 | kcalloc(dev->mode_config.num_connector, | |
8375 | sizeof(struct drm_encoder *), GFP_KERNEL); | |
8376 | if (!config->save_connector_encoders) | |
85f9eb71 DV |
8377 | return -ENOMEM; |
8378 | ||
8379 | /* Copy data. Note that driver private data is not affected. | |
8380 | * Should anything bad happen only the expected state is | |
8381 | * restored, not the drivers personal bookkeeping. | |
8382 | */ | |
85f9eb71 DV |
8383 | count = 0; |
8384 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
1aa4b628 | 8385 | config->save_encoder_crtcs[count++] = encoder->crtc; |
85f9eb71 DV |
8386 | } |
8387 | ||
8388 | count = 0; | |
8389 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1aa4b628 | 8390 | config->save_connector_encoders[count++] = connector->encoder; |
85f9eb71 DV |
8391 | } |
8392 | ||
8393 | return 0; | |
8394 | } | |
8395 | ||
8396 | static void intel_set_config_restore_state(struct drm_device *dev, | |
8397 | struct intel_set_config *config) | |
8398 | { | |
9a935856 DV |
8399 | struct intel_encoder *encoder; |
8400 | struct intel_connector *connector; | |
85f9eb71 DV |
8401 | int count; |
8402 | ||
85f9eb71 | 8403 | count = 0; |
9a935856 DV |
8404 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
8405 | encoder->new_crtc = | |
8406 | to_intel_crtc(config->save_encoder_crtcs[count++]); | |
85f9eb71 DV |
8407 | } |
8408 | ||
8409 | count = 0; | |
9a935856 DV |
8410 | list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) { |
8411 | connector->new_encoder = | |
8412 | to_intel_encoder(config->save_connector_encoders[count++]); | |
85f9eb71 DV |
8413 | } |
8414 | } | |
8415 | ||
5e2b584e DV |
8416 | static void |
8417 | intel_set_config_compute_mode_changes(struct drm_mode_set *set, | |
8418 | struct intel_set_config *config) | |
8419 | { | |
8420 | ||
8421 | /* We should be able to check here if the fb has the same properties | |
8422 | * and then just flip_or_move it */ | |
8423 | if (set->crtc->fb != set->fb) { | |
8424 | /* If we have no fb then treat it as a full mode set */ | |
8425 | if (set->crtc->fb == NULL) { | |
8426 | DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); | |
8427 | config->mode_changed = true; | |
8428 | } else if (set->fb == NULL) { | |
8429 | config->mode_changed = true; | |
72f4901e DV |
8430 | } else if (set->fb->pixel_format != |
8431 | set->crtc->fb->pixel_format) { | |
5e2b584e DV |
8432 | config->mode_changed = true; |
8433 | } else | |
8434 | config->fb_changed = true; | |
8435 | } | |
8436 | ||
835c5873 | 8437 | if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) |
5e2b584e DV |
8438 | config->fb_changed = true; |
8439 | ||
8440 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { | |
8441 | DRM_DEBUG_KMS("modes are different, full mode set\n"); | |
8442 | drm_mode_debug_printmodeline(&set->crtc->mode); | |
8443 | drm_mode_debug_printmodeline(set->mode); | |
8444 | config->mode_changed = true; | |
8445 | } | |
8446 | } | |
8447 | ||
2e431051 | 8448 | static int |
9a935856 DV |
8449 | intel_modeset_stage_output_state(struct drm_device *dev, |
8450 | struct drm_mode_set *set, | |
8451 | struct intel_set_config *config) | |
50f56119 | 8452 | { |
85f9eb71 | 8453 | struct drm_crtc *new_crtc; |
9a935856 DV |
8454 | struct intel_connector *connector; |
8455 | struct intel_encoder *encoder; | |
2e431051 | 8456 | int count, ro; |
50f56119 | 8457 | |
9abdda74 | 8458 | /* The upper layers ensure that we either disable a crtc or have a list |
9a935856 DV |
8459 | * of connectors. For paranoia, double-check this. */ |
8460 | WARN_ON(!set->fb && (set->num_connectors != 0)); | |
8461 | WARN_ON(set->fb && (set->num_connectors == 0)); | |
8462 | ||
50f56119 | 8463 | count = 0; |
9a935856 DV |
8464 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
8465 | base.head) { | |
8466 | /* Otherwise traverse passed in connector list and get encoders | |
8467 | * for them. */ | |
50f56119 | 8468 | for (ro = 0; ro < set->num_connectors; ro++) { |
9a935856 DV |
8469 | if (set->connectors[ro] == &connector->base) { |
8470 | connector->new_encoder = connector->encoder; | |
50f56119 DV |
8471 | break; |
8472 | } | |
8473 | } | |
8474 | ||
9a935856 DV |
8475 | /* If we disable the crtc, disable all its connectors. Also, if |
8476 | * the connector is on the changing crtc but not on the new | |
8477 | * connector list, disable it. */ | |
8478 | if ((!set->fb || ro == set->num_connectors) && | |
8479 | connector->base.encoder && | |
8480 | connector->base.encoder->crtc == set->crtc) { | |
8481 | connector->new_encoder = NULL; | |
8482 | ||
8483 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", | |
8484 | connector->base.base.id, | |
8485 | drm_get_connector_name(&connector->base)); | |
8486 | } | |
8487 | ||
8488 | ||
8489 | if (&connector->new_encoder->base != connector->base.encoder) { | |
50f56119 | 8490 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
5e2b584e | 8491 | config->mode_changed = true; |
50f56119 DV |
8492 | } |
8493 | } | |
9a935856 | 8494 | /* connector->new_encoder is now updated for all connectors. */ |
50f56119 | 8495 | |
9a935856 | 8496 | /* Update crtc of enabled connectors. */ |
50f56119 | 8497 | count = 0; |
9a935856 DV |
8498 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
8499 | base.head) { | |
8500 | if (!connector->new_encoder) | |
50f56119 DV |
8501 | continue; |
8502 | ||
9a935856 | 8503 | new_crtc = connector->new_encoder->base.crtc; |
50f56119 DV |
8504 | |
8505 | for (ro = 0; ro < set->num_connectors; ro++) { | |
9a935856 | 8506 | if (set->connectors[ro] == &connector->base) |
50f56119 DV |
8507 | new_crtc = set->crtc; |
8508 | } | |
8509 | ||
8510 | /* Make sure the new CRTC will work with the encoder */ | |
9a935856 DV |
8511 | if (!intel_encoder_crtc_ok(&connector->new_encoder->base, |
8512 | new_crtc)) { | |
5e2b584e | 8513 | return -EINVAL; |
50f56119 | 8514 | } |
9a935856 DV |
8515 | connector->encoder->new_crtc = to_intel_crtc(new_crtc); |
8516 | ||
8517 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", | |
8518 | connector->base.base.id, | |
8519 | drm_get_connector_name(&connector->base), | |
8520 | new_crtc->base.id); | |
8521 | } | |
8522 | ||
8523 | /* Check for any encoders that needs to be disabled. */ | |
8524 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8525 | base.head) { | |
8526 | list_for_each_entry(connector, | |
8527 | &dev->mode_config.connector_list, | |
8528 | base.head) { | |
8529 | if (connector->new_encoder == encoder) { | |
8530 | WARN_ON(!connector->new_encoder->new_crtc); | |
8531 | ||
8532 | goto next_encoder; | |
8533 | } | |
8534 | } | |
8535 | encoder->new_crtc = NULL; | |
8536 | next_encoder: | |
8537 | /* Only now check for crtc changes so we don't miss encoders | |
8538 | * that will be disabled. */ | |
8539 | if (&encoder->new_crtc->base != encoder->base.crtc) { | |
50f56119 | 8540 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
5e2b584e | 8541 | config->mode_changed = true; |
50f56119 DV |
8542 | } |
8543 | } | |
9a935856 | 8544 | /* Now we've also updated encoder->new_crtc for all encoders. */ |
50f56119 | 8545 | |
2e431051 DV |
8546 | return 0; |
8547 | } | |
8548 | ||
8549 | static int intel_crtc_set_config(struct drm_mode_set *set) | |
8550 | { | |
8551 | struct drm_device *dev; | |
2e431051 DV |
8552 | struct drm_mode_set save_set; |
8553 | struct intel_set_config *config; | |
8554 | int ret; | |
2e431051 | 8555 | |
8d3e375e DV |
8556 | BUG_ON(!set); |
8557 | BUG_ON(!set->crtc); | |
8558 | BUG_ON(!set->crtc->helper_private); | |
2e431051 | 8559 | |
7e53f3a4 DV |
8560 | /* Enforce sane interface api - has been abused by the fb helper. */ |
8561 | BUG_ON(!set->mode && set->fb); | |
8562 | BUG_ON(set->fb && set->num_connectors == 0); | |
431e50f7 | 8563 | |
2e431051 DV |
8564 | if (set->fb) { |
8565 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", | |
8566 | set->crtc->base.id, set->fb->base.id, | |
8567 | (int)set->num_connectors, set->x, set->y); | |
8568 | } else { | |
8569 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); | |
2e431051 DV |
8570 | } |
8571 | ||
8572 | dev = set->crtc->dev; | |
8573 | ||
8574 | ret = -ENOMEM; | |
8575 | config = kzalloc(sizeof(*config), GFP_KERNEL); | |
8576 | if (!config) | |
8577 | goto out_config; | |
8578 | ||
8579 | ret = intel_set_config_save_state(dev, config); | |
8580 | if (ret) | |
8581 | goto out_config; | |
8582 | ||
8583 | save_set.crtc = set->crtc; | |
8584 | save_set.mode = &set->crtc->mode; | |
8585 | save_set.x = set->crtc->x; | |
8586 | save_set.y = set->crtc->y; | |
8587 | save_set.fb = set->crtc->fb; | |
8588 | ||
8589 | /* Compute whether we need a full modeset, only an fb base update or no | |
8590 | * change at all. In the future we might also check whether only the | |
8591 | * mode changed, e.g. for LVDS where we only change the panel fitter in | |
8592 | * such cases. */ | |
8593 | intel_set_config_compute_mode_changes(set, config); | |
8594 | ||
9a935856 | 8595 | ret = intel_modeset_stage_output_state(dev, set, config); |
2e431051 DV |
8596 | if (ret) |
8597 | goto fail; | |
8598 | ||
5e2b584e | 8599 | if (config->mode_changed) { |
c0c36b94 CW |
8600 | ret = intel_set_mode(set->crtc, set->mode, |
8601 | set->x, set->y, set->fb); | |
8602 | if (ret) { | |
8603 | DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n", | |
8604 | set->crtc->base.id, ret); | |
87f1faa6 DV |
8605 | goto fail; |
8606 | } | |
5e2b584e | 8607 | } else if (config->fb_changed) { |
4878cae2 VS |
8608 | intel_crtc_wait_for_pending_flips(set->crtc); |
8609 | ||
4f660f49 | 8610 | ret = intel_pipe_set_base(set->crtc, |
94352cf9 | 8611 | set->x, set->y, set->fb); |
50f56119 DV |
8612 | } |
8613 | ||
d9e55608 DV |
8614 | intel_set_config_free(config); |
8615 | ||
50f56119 DV |
8616 | return 0; |
8617 | ||
8618 | fail: | |
85f9eb71 | 8619 | intel_set_config_restore_state(dev, config); |
50f56119 DV |
8620 | |
8621 | /* Try to restore the config */ | |
5e2b584e | 8622 | if (config->mode_changed && |
c0c36b94 CW |
8623 | intel_set_mode(save_set.crtc, save_set.mode, |
8624 | save_set.x, save_set.y, save_set.fb)) | |
50f56119 DV |
8625 | DRM_ERROR("failed to restore config after modeset failure\n"); |
8626 | ||
d9e55608 DV |
8627 | out_config: |
8628 | intel_set_config_free(config); | |
50f56119 DV |
8629 | return ret; |
8630 | } | |
f6e5b160 CW |
8631 | |
8632 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
f6e5b160 CW |
8633 | .cursor_set = intel_crtc_cursor_set, |
8634 | .cursor_move = intel_crtc_cursor_move, | |
8635 | .gamma_set = intel_crtc_gamma_set, | |
50f56119 | 8636 | .set_config = intel_crtc_set_config, |
f6e5b160 CW |
8637 | .destroy = intel_crtc_destroy, |
8638 | .page_flip = intel_crtc_page_flip, | |
8639 | }; | |
8640 | ||
79f689aa PZ |
8641 | static void intel_cpu_pll_init(struct drm_device *dev) |
8642 | { | |
affa9354 | 8643 | if (HAS_DDI(dev)) |
79f689aa PZ |
8644 | intel_ddi_pll_init(dev); |
8645 | } | |
8646 | ||
ee7b9f93 JB |
8647 | static void intel_pch_pll_init(struct drm_device *dev) |
8648 | { | |
8649 | drm_i915_private_t *dev_priv = dev->dev_private; | |
8650 | int i; | |
8651 | ||
8652 | if (dev_priv->num_pch_pll == 0) { | |
8653 | DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n"); | |
8654 | return; | |
8655 | } | |
8656 | ||
8657 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
8658 | dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i); | |
8659 | dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i); | |
8660 | dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i); | |
8661 | } | |
8662 | } | |
8663 | ||
b358d0a6 | 8664 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 8665 | { |
22fd0fab | 8666 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
8667 | struct intel_crtc *intel_crtc; |
8668 | int i; | |
8669 | ||
8670 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
8671 | if (intel_crtc == NULL) | |
8672 | return; | |
8673 | ||
8674 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
8675 | ||
8676 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
8677 | for (i = 0; i < 256; i++) { |
8678 | intel_crtc->lut_r[i] = i; | |
8679 | intel_crtc->lut_g[i] = i; | |
8680 | intel_crtc->lut_b[i] = i; | |
8681 | } | |
8682 | ||
80824003 JB |
8683 | /* Swap pipes & planes for FBC on pre-965 */ |
8684 | intel_crtc->pipe = pipe; | |
8685 | intel_crtc->plane = pipe; | |
e2e767ab | 8686 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
28c97730 | 8687 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 8688 | intel_crtc->plane = !pipe; |
80824003 JB |
8689 | } |
8690 | ||
22fd0fab JB |
8691 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
8692 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
8693 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
8694 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
8695 | ||
79e53945 | 8696 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
79e53945 JB |
8697 | } |
8698 | ||
08d7b3d1 | 8699 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 8700 | struct drm_file *file) |
08d7b3d1 | 8701 | { |
08d7b3d1 | 8702 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
c05422d5 DV |
8703 | struct drm_mode_object *drmmode_obj; |
8704 | struct intel_crtc *crtc; | |
08d7b3d1 | 8705 | |
1cff8f6b DV |
8706 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
8707 | return -ENODEV; | |
08d7b3d1 | 8708 | |
c05422d5 DV |
8709 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
8710 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 8711 | |
c05422d5 | 8712 | if (!drmmode_obj) { |
08d7b3d1 CW |
8713 | DRM_ERROR("no such CRTC id\n"); |
8714 | return -EINVAL; | |
8715 | } | |
8716 | ||
c05422d5 DV |
8717 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
8718 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 8719 | |
c05422d5 | 8720 | return 0; |
08d7b3d1 CW |
8721 | } |
8722 | ||
66a9278e | 8723 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 8724 | { |
66a9278e DV |
8725 | struct drm_device *dev = encoder->base.dev; |
8726 | struct intel_encoder *source_encoder; | |
79e53945 | 8727 | int index_mask = 0; |
79e53945 JB |
8728 | int entry = 0; |
8729 | ||
66a9278e DV |
8730 | list_for_each_entry(source_encoder, |
8731 | &dev->mode_config.encoder_list, base.head) { | |
8732 | ||
8733 | if (encoder == source_encoder) | |
79e53945 | 8734 | index_mask |= (1 << entry); |
66a9278e DV |
8735 | |
8736 | /* Intel hw has only one MUX where enocoders could be cloned. */ | |
8737 | if (encoder->cloneable && source_encoder->cloneable) | |
8738 | index_mask |= (1 << entry); | |
8739 | ||
79e53945 JB |
8740 | entry++; |
8741 | } | |
4ef69c7a | 8742 | |
79e53945 JB |
8743 | return index_mask; |
8744 | } | |
8745 | ||
4d302442 CW |
8746 | static bool has_edp_a(struct drm_device *dev) |
8747 | { | |
8748 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8749 | ||
8750 | if (!IS_MOBILE(dev)) | |
8751 | return false; | |
8752 | ||
8753 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
8754 | return false; | |
8755 | ||
8756 | if (IS_GEN5(dev) && | |
8757 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) | |
8758 | return false; | |
8759 | ||
8760 | return true; | |
8761 | } | |
8762 | ||
79e53945 JB |
8763 | static void intel_setup_outputs(struct drm_device *dev) |
8764 | { | |
725e30ad | 8765 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 8766 | struct intel_encoder *encoder; |
cb0953d7 | 8767 | bool dpd_is_edp = false; |
f3cfcba6 | 8768 | bool has_lvds; |
79e53945 | 8769 | |
f3cfcba6 | 8770 | has_lvds = intel_lvds_init(dev); |
c5d1b51d CW |
8771 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
8772 | /* disable the panel fitter on everything but LVDS */ | |
8773 | I915_WRITE(PFIT_CONTROL, 0); | |
8774 | } | |
79e53945 | 8775 | |
c40c0f5b | 8776 | if (!IS_ULT(dev)) |
79935fca | 8777 | intel_crt_init(dev); |
cb0953d7 | 8778 | |
affa9354 | 8779 | if (HAS_DDI(dev)) { |
0e72a5b5 ED |
8780 | int found; |
8781 | ||
8782 | /* Haswell uses DDI functions to detect digital outputs */ | |
8783 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; | |
8784 | /* DDI A only supports eDP */ | |
8785 | if (found) | |
8786 | intel_ddi_init(dev, PORT_A); | |
8787 | ||
8788 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
8789 | * register */ | |
8790 | found = I915_READ(SFUSE_STRAP); | |
8791 | ||
8792 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
8793 | intel_ddi_init(dev, PORT_B); | |
8794 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
8795 | intel_ddi_init(dev, PORT_C); | |
8796 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
8797 | intel_ddi_init(dev, PORT_D); | |
8798 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 | 8799 | int found; |
270b3042 DV |
8800 | dpd_is_edp = intel_dpd_is_edp(dev); |
8801 | ||
8802 | if (has_edp_a(dev)) | |
8803 | intel_dp_init(dev, DP_A, PORT_A); | |
cb0953d7 | 8804 | |
dc0fa718 | 8805 | if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) { |
461ed3ca | 8806 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 8807 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 | 8808 | if (!found) |
e2debe91 | 8809 | intel_hdmi_init(dev, PCH_HDMIB, PORT_B); |
5eb08b69 | 8810 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 8811 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
8812 | } |
8813 | ||
dc0fa718 | 8814 | if (I915_READ(PCH_HDMIC) & SDVO_DETECTED) |
e2debe91 | 8815 | intel_hdmi_init(dev, PCH_HDMIC, PORT_C); |
30ad48b7 | 8816 | |
dc0fa718 | 8817 | if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED) |
e2debe91 | 8818 | intel_hdmi_init(dev, PCH_HDMID, PORT_D); |
30ad48b7 | 8819 | |
5eb08b69 | 8820 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 8821 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 8822 | |
270b3042 | 8823 | if (I915_READ(PCH_DP_D) & DP_DETECTED) |
ab9d7c30 | 8824 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
4a87d65d | 8825 | } else if (IS_VALLEYVIEW(dev)) { |
19c03924 | 8826 | /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */ |
67cfc203 VS |
8827 | if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED) |
8828 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C); | |
19c03924 | 8829 | |
dc0fa718 | 8830 | if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) { |
e2debe91 PZ |
8831 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB, |
8832 | PORT_B); | |
67cfc203 VS |
8833 | if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED) |
8834 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B); | |
4a87d65d | 8835 | } |
103a196f | 8836 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 8837 | bool found = false; |
7d57382e | 8838 | |
e2debe91 | 8839 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 8840 | DRM_DEBUG_KMS("probing SDVOB\n"); |
e2debe91 | 8841 | found = intel_sdvo_init(dev, GEN3_SDVOB, true); |
b01f2c3a JB |
8842 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
8843 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
e2debe91 | 8844 | intel_hdmi_init(dev, GEN4_HDMIB, PORT_B); |
b01f2c3a | 8845 | } |
27185ae1 | 8846 | |
e7281eab | 8847 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) |
ab9d7c30 | 8848 | intel_dp_init(dev, DP_B, PORT_B); |
725e30ad | 8849 | } |
13520b05 KH |
8850 | |
8851 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 8852 | |
e2debe91 | 8853 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 8854 | DRM_DEBUG_KMS("probing SDVOC\n"); |
e2debe91 | 8855 | found = intel_sdvo_init(dev, GEN3_SDVOC, false); |
b01f2c3a | 8856 | } |
27185ae1 | 8857 | |
e2debe91 | 8858 | if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) { |
27185ae1 | 8859 | |
b01f2c3a JB |
8860 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
8861 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
e2debe91 | 8862 | intel_hdmi_init(dev, GEN4_HDMIC, PORT_C); |
b01f2c3a | 8863 | } |
e7281eab | 8864 | if (SUPPORTS_INTEGRATED_DP(dev)) |
ab9d7c30 | 8865 | intel_dp_init(dev, DP_C, PORT_C); |
725e30ad | 8866 | } |
27185ae1 | 8867 | |
b01f2c3a | 8868 | if (SUPPORTS_INTEGRATED_DP(dev) && |
e7281eab | 8869 | (I915_READ(DP_D) & DP_DETECTED)) |
ab9d7c30 | 8870 | intel_dp_init(dev, DP_D, PORT_D); |
bad720ff | 8871 | } else if (IS_GEN2(dev)) |
79e53945 JB |
8872 | intel_dvo_init(dev); |
8873 | ||
103a196f | 8874 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
8875 | intel_tv_init(dev); |
8876 | ||
4ef69c7a CW |
8877 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
8878 | encoder->base.possible_crtcs = encoder->crtc_mask; | |
8879 | encoder->base.possible_clones = | |
66a9278e | 8880 | intel_encoder_clones(encoder); |
79e53945 | 8881 | } |
47356eb6 | 8882 | |
dde86e2d | 8883 | intel_init_pch_refclk(dev); |
270b3042 DV |
8884 | |
8885 | drm_helper_move_panel_connectors_to_head(dev); | |
79e53945 JB |
8886 | } |
8887 | ||
8888 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
8889 | { | |
8890 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
79e53945 JB |
8891 | |
8892 | drm_framebuffer_cleanup(fb); | |
05394f39 | 8893 | drm_gem_object_unreference_unlocked(&intel_fb->obj->base); |
79e53945 JB |
8894 | |
8895 | kfree(intel_fb); | |
8896 | } | |
8897 | ||
8898 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 8899 | struct drm_file *file, |
79e53945 JB |
8900 | unsigned int *handle) |
8901 | { | |
8902 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 8903 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 8904 | |
05394f39 | 8905 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
8906 | } |
8907 | ||
8908 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
8909 | .destroy = intel_user_framebuffer_destroy, | |
8910 | .create_handle = intel_user_framebuffer_create_handle, | |
8911 | }; | |
8912 | ||
38651674 DA |
8913 | int intel_framebuffer_init(struct drm_device *dev, |
8914 | struct intel_framebuffer *intel_fb, | |
308e5bcb | 8915 | struct drm_mode_fb_cmd2 *mode_cmd, |
05394f39 | 8916 | struct drm_i915_gem_object *obj) |
79e53945 | 8917 | { |
79e53945 JB |
8918 | int ret; |
8919 | ||
c16ed4be CW |
8920 | if (obj->tiling_mode == I915_TILING_Y) { |
8921 | DRM_DEBUG("hardware does not support tiling Y\n"); | |
57cd6508 | 8922 | return -EINVAL; |
c16ed4be | 8923 | } |
57cd6508 | 8924 | |
c16ed4be CW |
8925 | if (mode_cmd->pitches[0] & 63) { |
8926 | DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n", | |
8927 | mode_cmd->pitches[0]); | |
57cd6508 | 8928 | return -EINVAL; |
c16ed4be | 8929 | } |
57cd6508 | 8930 | |
5d7bd705 | 8931 | /* FIXME <= Gen4 stride limits are bit unclear */ |
c16ed4be CW |
8932 | if (mode_cmd->pitches[0] > 32768) { |
8933 | DRM_DEBUG("pitch (%d) must be at less than 32768\n", | |
8934 | mode_cmd->pitches[0]); | |
5d7bd705 | 8935 | return -EINVAL; |
c16ed4be | 8936 | } |
5d7bd705 VS |
8937 | |
8938 | if (obj->tiling_mode != I915_TILING_NONE && | |
c16ed4be CW |
8939 | mode_cmd->pitches[0] != obj->stride) { |
8940 | DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n", | |
8941 | mode_cmd->pitches[0], obj->stride); | |
5d7bd705 | 8942 | return -EINVAL; |
c16ed4be | 8943 | } |
5d7bd705 | 8944 | |
57779d06 | 8945 | /* Reject formats not supported by any plane early. */ |
308e5bcb | 8946 | switch (mode_cmd->pixel_format) { |
57779d06 | 8947 | case DRM_FORMAT_C8: |
04b3924d VS |
8948 | case DRM_FORMAT_RGB565: |
8949 | case DRM_FORMAT_XRGB8888: | |
8950 | case DRM_FORMAT_ARGB8888: | |
57779d06 VS |
8951 | break; |
8952 | case DRM_FORMAT_XRGB1555: | |
8953 | case DRM_FORMAT_ARGB1555: | |
c16ed4be CW |
8954 | if (INTEL_INFO(dev)->gen > 3) { |
8955 | DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format); | |
57779d06 | 8956 | return -EINVAL; |
c16ed4be | 8957 | } |
57779d06 VS |
8958 | break; |
8959 | case DRM_FORMAT_XBGR8888: | |
8960 | case DRM_FORMAT_ABGR8888: | |
04b3924d VS |
8961 | case DRM_FORMAT_XRGB2101010: |
8962 | case DRM_FORMAT_ARGB2101010: | |
57779d06 VS |
8963 | case DRM_FORMAT_XBGR2101010: |
8964 | case DRM_FORMAT_ABGR2101010: | |
c16ed4be CW |
8965 | if (INTEL_INFO(dev)->gen < 4) { |
8966 | DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format); | |
57779d06 | 8967 | return -EINVAL; |
c16ed4be | 8968 | } |
b5626747 | 8969 | break; |
04b3924d VS |
8970 | case DRM_FORMAT_YUYV: |
8971 | case DRM_FORMAT_UYVY: | |
8972 | case DRM_FORMAT_YVYU: | |
8973 | case DRM_FORMAT_VYUY: | |
c16ed4be CW |
8974 | if (INTEL_INFO(dev)->gen < 5) { |
8975 | DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format); | |
57779d06 | 8976 | return -EINVAL; |
c16ed4be | 8977 | } |
57cd6508 CW |
8978 | break; |
8979 | default: | |
c16ed4be | 8980 | DRM_DEBUG("unsupported pixel format 0x%08x\n", mode_cmd->pixel_format); |
57cd6508 CW |
8981 | return -EINVAL; |
8982 | } | |
8983 | ||
90f9a336 VS |
8984 | /* FIXME need to adjust LINOFF/TILEOFF accordingly. */ |
8985 | if (mode_cmd->offsets[0] != 0) | |
8986 | return -EINVAL; | |
8987 | ||
c7d73f6a DV |
8988 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); |
8989 | intel_fb->obj = obj; | |
8990 | ||
79e53945 JB |
8991 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
8992 | if (ret) { | |
8993 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
8994 | return ret; | |
8995 | } | |
8996 | ||
79e53945 JB |
8997 | return 0; |
8998 | } | |
8999 | ||
79e53945 JB |
9000 | static struct drm_framebuffer * |
9001 | intel_user_framebuffer_create(struct drm_device *dev, | |
9002 | struct drm_file *filp, | |
308e5bcb | 9003 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 9004 | { |
05394f39 | 9005 | struct drm_i915_gem_object *obj; |
79e53945 | 9006 | |
308e5bcb JB |
9007 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
9008 | mode_cmd->handles[0])); | |
c8725226 | 9009 | if (&obj->base == NULL) |
cce13ff7 | 9010 | return ERR_PTR(-ENOENT); |
79e53945 | 9011 | |
d2dff872 | 9012 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
9013 | } |
9014 | ||
79e53945 | 9015 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 9016 | .fb_create = intel_user_framebuffer_create, |
eb1f8e4f | 9017 | .output_poll_changed = intel_fb_output_poll_changed, |
79e53945 JB |
9018 | }; |
9019 | ||
e70236a8 JB |
9020 | /* Set up chip specific display functions */ |
9021 | static void intel_init_display(struct drm_device *dev) | |
9022 | { | |
9023 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9024 | ||
ee9300bb DV |
9025 | if (HAS_PCH_SPLIT(dev) || IS_G4X(dev)) |
9026 | dev_priv->display.find_dpll = g4x_find_best_dpll; | |
9027 | else if (IS_VALLEYVIEW(dev)) | |
9028 | dev_priv->display.find_dpll = vlv_find_best_dpll; | |
9029 | else if (IS_PINEVIEW(dev)) | |
9030 | dev_priv->display.find_dpll = pnv_find_best_dpll; | |
9031 | else | |
9032 | dev_priv->display.find_dpll = i9xx_find_best_dpll; | |
9033 | ||
affa9354 | 9034 | if (HAS_DDI(dev)) { |
0e8ffe1b | 9035 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; |
09b4ddf9 | 9036 | dev_priv->display.crtc_mode_set = haswell_crtc_mode_set; |
4f771f10 PZ |
9037 | dev_priv->display.crtc_enable = haswell_crtc_enable; |
9038 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
6441ab5f | 9039 | dev_priv->display.off = haswell_crtc_off; |
09b4ddf9 PZ |
9040 | dev_priv->display.update_plane = ironlake_update_plane; |
9041 | } else if (HAS_PCH_SPLIT(dev)) { | |
0e8ffe1b | 9042 | dev_priv->display.get_pipe_config = ironlake_get_pipe_config; |
f564048e | 9043 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
76e5a89c DV |
9044 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
9045 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
ee7b9f93 | 9046 | dev_priv->display.off = ironlake_crtc_off; |
17638cd6 | 9047 | dev_priv->display.update_plane = ironlake_update_plane; |
89b667f8 JB |
9048 | } else if (IS_VALLEYVIEW(dev)) { |
9049 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; | |
9050 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; | |
9051 | dev_priv->display.crtc_enable = valleyview_crtc_enable; | |
9052 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
9053 | dev_priv->display.off = i9xx_crtc_off; | |
9054 | dev_priv->display.update_plane = i9xx_update_plane; | |
f564048e | 9055 | } else { |
0e8ffe1b | 9056 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; |
f564048e | 9057 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
76e5a89c DV |
9058 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
9059 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
ee7b9f93 | 9060 | dev_priv->display.off = i9xx_crtc_off; |
17638cd6 | 9061 | dev_priv->display.update_plane = i9xx_update_plane; |
f564048e | 9062 | } |
e70236a8 | 9063 | |
e70236a8 | 9064 | /* Returns the core display clock speed */ |
25eb05fc JB |
9065 | if (IS_VALLEYVIEW(dev)) |
9066 | dev_priv->display.get_display_clock_speed = | |
9067 | valleyview_get_display_clock_speed; | |
9068 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) | |
e70236a8 JB |
9069 | dev_priv->display.get_display_clock_speed = |
9070 | i945_get_display_clock_speed; | |
9071 | else if (IS_I915G(dev)) | |
9072 | dev_priv->display.get_display_clock_speed = | |
9073 | i915_get_display_clock_speed; | |
f2b115e6 | 9074 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
9075 | dev_priv->display.get_display_clock_speed = |
9076 | i9xx_misc_get_display_clock_speed; | |
9077 | else if (IS_I915GM(dev)) | |
9078 | dev_priv->display.get_display_clock_speed = | |
9079 | i915gm_get_display_clock_speed; | |
9080 | else if (IS_I865G(dev)) | |
9081 | dev_priv->display.get_display_clock_speed = | |
9082 | i865_get_display_clock_speed; | |
f0f8a9ce | 9083 | else if (IS_I85X(dev)) |
e70236a8 JB |
9084 | dev_priv->display.get_display_clock_speed = |
9085 | i855_get_display_clock_speed; | |
9086 | else /* 852, 830 */ | |
9087 | dev_priv->display.get_display_clock_speed = | |
9088 | i830_get_display_clock_speed; | |
9089 | ||
7f8a8569 | 9090 | if (HAS_PCH_SPLIT(dev)) { |
f00a3ddf | 9091 | if (IS_GEN5(dev)) { |
674cf967 | 9092 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
e0dac65e | 9093 | dev_priv->display.write_eld = ironlake_write_eld; |
1398261a | 9094 | } else if (IS_GEN6(dev)) { |
674cf967 | 9095 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
e0dac65e | 9096 | dev_priv->display.write_eld = ironlake_write_eld; |
357555c0 JB |
9097 | } else if (IS_IVYBRIDGE(dev)) { |
9098 | /* FIXME: detect B0+ stepping and use auto training */ | |
9099 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
e0dac65e | 9100 | dev_priv->display.write_eld = ironlake_write_eld; |
01a415fd DV |
9101 | dev_priv->display.modeset_global_resources = |
9102 | ivb_modeset_global_resources; | |
c82e4d26 ED |
9103 | } else if (IS_HASWELL(dev)) { |
9104 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; | |
83358c85 | 9105 | dev_priv->display.write_eld = haswell_write_eld; |
d6dd9eb1 DV |
9106 | dev_priv->display.modeset_global_resources = |
9107 | haswell_modeset_global_resources; | |
a0e63c22 | 9108 | } |
6067aaea | 9109 | } else if (IS_G4X(dev)) { |
e0dac65e | 9110 | dev_priv->display.write_eld = g4x_write_eld; |
e70236a8 | 9111 | } |
8c9f3aaf JB |
9112 | |
9113 | /* Default just returns -ENODEV to indicate unsupported */ | |
9114 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
9115 | ||
9116 | switch (INTEL_INFO(dev)->gen) { | |
9117 | case 2: | |
9118 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
9119 | break; | |
9120 | ||
9121 | case 3: | |
9122 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
9123 | break; | |
9124 | ||
9125 | case 4: | |
9126 | case 5: | |
9127 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
9128 | break; | |
9129 | ||
9130 | case 6: | |
9131 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
9132 | break; | |
7c9017e5 JB |
9133 | case 7: |
9134 | dev_priv->display.queue_flip = intel_gen7_queue_flip; | |
9135 | break; | |
8c9f3aaf | 9136 | } |
e70236a8 JB |
9137 | } |
9138 | ||
b690e96c JB |
9139 | /* |
9140 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
9141 | * resume, or other times. This quirk makes sure that's the case for | |
9142 | * affected systems. | |
9143 | */ | |
0206e353 | 9144 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
9145 | { |
9146 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9147 | ||
9148 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 9149 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
9150 | } |
9151 | ||
435793df KP |
9152 | /* |
9153 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
9154 | */ | |
9155 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
9156 | { | |
9157 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9158 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 9159 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
9160 | } |
9161 | ||
4dca20ef | 9162 | /* |
5a15ab5b CE |
9163 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
9164 | * brightness value | |
4dca20ef CE |
9165 | */ |
9166 | static void quirk_invert_brightness(struct drm_device *dev) | |
9167 | { | |
9168 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9169 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 9170 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
9171 | } |
9172 | ||
b690e96c JB |
9173 | struct intel_quirk { |
9174 | int device; | |
9175 | int subsystem_vendor; | |
9176 | int subsystem_device; | |
9177 | void (*hook)(struct drm_device *dev); | |
9178 | }; | |
9179 | ||
5f85f176 EE |
9180 | /* For systems that don't have a meaningful PCI subdevice/subvendor ID */ |
9181 | struct intel_dmi_quirk { | |
9182 | void (*hook)(struct drm_device *dev); | |
9183 | const struct dmi_system_id (*dmi_id_list)[]; | |
9184 | }; | |
9185 | ||
9186 | static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) | |
9187 | { | |
9188 | DRM_INFO("Backlight polarity reversed on %s\n", id->ident); | |
9189 | return 1; | |
9190 | } | |
9191 | ||
9192 | static const struct intel_dmi_quirk intel_dmi_quirks[] = { | |
9193 | { | |
9194 | .dmi_id_list = &(const struct dmi_system_id[]) { | |
9195 | { | |
9196 | .callback = intel_dmi_reverse_brightness, | |
9197 | .ident = "NCR Corporation", | |
9198 | .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), | |
9199 | DMI_MATCH(DMI_PRODUCT_NAME, ""), | |
9200 | }, | |
9201 | }, | |
9202 | { } /* terminating entry */ | |
9203 | }, | |
9204 | .hook = quirk_invert_brightness, | |
9205 | }, | |
9206 | }; | |
9207 | ||
c43b5634 | 9208 | static struct intel_quirk intel_quirks[] = { |
b690e96c | 9209 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
0206e353 | 9210 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
b690e96c | 9211 | |
b690e96c JB |
9212 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
9213 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
9214 | ||
b690e96c JB |
9215 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
9216 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
9217 | ||
ccd0d36e | 9218 | /* 830/845 need to leave pipe A & dpll A up */ |
b690e96c | 9219 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
dcdaed6e | 9220 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
435793df KP |
9221 | |
9222 | /* Lenovo U160 cannot use SSC on LVDS */ | |
9223 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
9224 | |
9225 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
9226 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b CE |
9227 | |
9228 | /* Acer Aspire 5734Z must invert backlight brightness */ | |
9229 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
1ffff603 JN |
9230 | |
9231 | /* Acer/eMachines G725 */ | |
9232 | { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness }, | |
01e3a8fe JN |
9233 | |
9234 | /* Acer/eMachines e725 */ | |
9235 | { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness }, | |
5559ecad JN |
9236 | |
9237 | /* Acer/Packard Bell NCL20 */ | |
9238 | { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness }, | |
ac4199e0 DV |
9239 | |
9240 | /* Acer Aspire 4736Z */ | |
9241 | { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness }, | |
b690e96c JB |
9242 | }; |
9243 | ||
9244 | static void intel_init_quirks(struct drm_device *dev) | |
9245 | { | |
9246 | struct pci_dev *d = dev->pdev; | |
9247 | int i; | |
9248 | ||
9249 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
9250 | struct intel_quirk *q = &intel_quirks[i]; | |
9251 | ||
9252 | if (d->device == q->device && | |
9253 | (d->subsystem_vendor == q->subsystem_vendor || | |
9254 | q->subsystem_vendor == PCI_ANY_ID) && | |
9255 | (d->subsystem_device == q->subsystem_device || | |
9256 | q->subsystem_device == PCI_ANY_ID)) | |
9257 | q->hook(dev); | |
9258 | } | |
5f85f176 EE |
9259 | for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { |
9260 | if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) | |
9261 | intel_dmi_quirks[i].hook(dev); | |
9262 | } | |
b690e96c JB |
9263 | } |
9264 | ||
9cce37f4 JB |
9265 | /* Disable the VGA plane that we never use */ |
9266 | static void i915_disable_vga(struct drm_device *dev) | |
9267 | { | |
9268 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9269 | u8 sr1; | |
766aa1c4 | 9270 | u32 vga_reg = i915_vgacntrl_reg(dev); |
9cce37f4 JB |
9271 | |
9272 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); | |
3fdcf431 | 9273 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
9274 | sr1 = inb(VGA_SR_DATA); |
9275 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
9276 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
9277 | udelay(300); | |
9278 | ||
9279 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
9280 | POSTING_READ(vga_reg); | |
9281 | } | |
9282 | ||
f817586c DV |
9283 | void intel_modeset_init_hw(struct drm_device *dev) |
9284 | { | |
fa42e23c | 9285 | intel_init_power_well(dev); |
0232e927 | 9286 | |
a8f78b58 ED |
9287 | intel_prepare_ddi(dev); |
9288 | ||
f817586c DV |
9289 | intel_init_clock_gating(dev); |
9290 | ||
79f5b2c7 | 9291 | mutex_lock(&dev->struct_mutex); |
8090c6b9 | 9292 | intel_enable_gt_powersave(dev); |
79f5b2c7 | 9293 | mutex_unlock(&dev->struct_mutex); |
f817586c DV |
9294 | } |
9295 | ||
7d708ee4 ID |
9296 | void intel_modeset_suspend_hw(struct drm_device *dev) |
9297 | { | |
9298 | intel_suspend_hw(dev); | |
9299 | } | |
9300 | ||
79e53945 JB |
9301 | void intel_modeset_init(struct drm_device *dev) |
9302 | { | |
652c393a | 9303 | struct drm_i915_private *dev_priv = dev->dev_private; |
7f1f3851 | 9304 | int i, j, ret; |
79e53945 JB |
9305 | |
9306 | drm_mode_config_init(dev); | |
9307 | ||
9308 | dev->mode_config.min_width = 0; | |
9309 | dev->mode_config.min_height = 0; | |
9310 | ||
019d96cb DA |
9311 | dev->mode_config.preferred_depth = 24; |
9312 | dev->mode_config.prefer_shadow = 1; | |
9313 | ||
e6ecefaa | 9314 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 9315 | |
b690e96c JB |
9316 | intel_init_quirks(dev); |
9317 | ||
1fa61106 ED |
9318 | intel_init_pm(dev); |
9319 | ||
e3c74757 BW |
9320 | if (INTEL_INFO(dev)->num_pipes == 0) |
9321 | return; | |
9322 | ||
e70236a8 JB |
9323 | intel_init_display(dev); |
9324 | ||
a6c45cf0 CW |
9325 | if (IS_GEN2(dev)) { |
9326 | dev->mode_config.max_width = 2048; | |
9327 | dev->mode_config.max_height = 2048; | |
9328 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
9329 | dev->mode_config.max_width = 4096; |
9330 | dev->mode_config.max_height = 4096; | |
79e53945 | 9331 | } else { |
a6c45cf0 CW |
9332 | dev->mode_config.max_width = 8192; |
9333 | dev->mode_config.max_height = 8192; | |
79e53945 | 9334 | } |
5d4545ae | 9335 | dev->mode_config.fb_base = dev_priv->gtt.mappable_base; |
79e53945 | 9336 | |
28c97730 | 9337 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
7eb552ae BW |
9338 | INTEL_INFO(dev)->num_pipes, |
9339 | INTEL_INFO(dev)->num_pipes > 1 ? "s" : ""); | |
79e53945 | 9340 | |
7eb552ae | 9341 | for (i = 0; i < INTEL_INFO(dev)->num_pipes; i++) { |
79e53945 | 9342 | intel_crtc_init(dev, i); |
7f1f3851 JB |
9343 | for (j = 0; j < dev_priv->num_plane; j++) { |
9344 | ret = intel_plane_init(dev, i, j); | |
9345 | if (ret) | |
06da8da2 VS |
9346 | DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n", |
9347 | pipe_name(i), sprite_name(i, j), ret); | |
7f1f3851 | 9348 | } |
79e53945 JB |
9349 | } |
9350 | ||
79f689aa | 9351 | intel_cpu_pll_init(dev); |
ee7b9f93 JB |
9352 | intel_pch_pll_init(dev); |
9353 | ||
9cce37f4 JB |
9354 | /* Just disable it once at startup */ |
9355 | i915_disable_vga(dev); | |
79e53945 | 9356 | intel_setup_outputs(dev); |
11be49eb CW |
9357 | |
9358 | /* Just in case the BIOS is doing something questionable. */ | |
9359 | intel_disable_fbc(dev); | |
2c7111db CW |
9360 | } |
9361 | ||
24929352 DV |
9362 | static void |
9363 | intel_connector_break_all_links(struct intel_connector *connector) | |
9364 | { | |
9365 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
9366 | connector->base.encoder = NULL; | |
9367 | connector->encoder->connectors_active = false; | |
9368 | connector->encoder->base.crtc = NULL; | |
9369 | } | |
9370 | ||
7fad798e DV |
9371 | static void intel_enable_pipe_a(struct drm_device *dev) |
9372 | { | |
9373 | struct intel_connector *connector; | |
9374 | struct drm_connector *crt = NULL; | |
9375 | struct intel_load_detect_pipe load_detect_temp; | |
9376 | ||
9377 | /* We can't just switch on the pipe A, we need to set things up with a | |
9378 | * proper mode and output configuration. As a gross hack, enable pipe A | |
9379 | * by enabling the load detect pipe once. */ | |
9380 | list_for_each_entry(connector, | |
9381 | &dev->mode_config.connector_list, | |
9382 | base.head) { | |
9383 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { | |
9384 | crt = &connector->base; | |
9385 | break; | |
9386 | } | |
9387 | } | |
9388 | ||
9389 | if (!crt) | |
9390 | return; | |
9391 | ||
9392 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp)) | |
9393 | intel_release_load_detect_pipe(crt, &load_detect_temp); | |
9394 | ||
652c393a | 9395 | |
7fad798e DV |
9396 | } |
9397 | ||
fa555837 DV |
9398 | static bool |
9399 | intel_check_plane_mapping(struct intel_crtc *crtc) | |
9400 | { | |
7eb552ae BW |
9401 | struct drm_device *dev = crtc->base.dev; |
9402 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 DV |
9403 | u32 reg, val; |
9404 | ||
7eb552ae | 9405 | if (INTEL_INFO(dev)->num_pipes == 1) |
fa555837 DV |
9406 | return true; |
9407 | ||
9408 | reg = DSPCNTR(!crtc->plane); | |
9409 | val = I915_READ(reg); | |
9410 | ||
9411 | if ((val & DISPLAY_PLANE_ENABLE) && | |
9412 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
9413 | return false; | |
9414 | ||
9415 | return true; | |
9416 | } | |
9417 | ||
24929352 DV |
9418 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
9419 | { | |
9420 | struct drm_device *dev = crtc->base.dev; | |
9421 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 | 9422 | u32 reg; |
24929352 | 9423 | |
24929352 | 9424 | /* Clear any frame start delays used for debugging left by the BIOS */ |
3b117c8f | 9425 | reg = PIPECONF(crtc->config.cpu_transcoder); |
24929352 DV |
9426 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); |
9427 | ||
9428 | /* We need to sanitize the plane -> pipe mapping first because this will | |
fa555837 DV |
9429 | * disable the crtc (and hence change the state) if it is wrong. Note |
9430 | * that gen4+ has a fixed plane -> pipe mapping. */ | |
9431 | if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) { | |
24929352 DV |
9432 | struct intel_connector *connector; |
9433 | bool plane; | |
9434 | ||
24929352 DV |
9435 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", |
9436 | crtc->base.base.id); | |
9437 | ||
9438 | /* Pipe has the wrong plane attached and the plane is active. | |
9439 | * Temporarily change the plane mapping and disable everything | |
9440 | * ... */ | |
9441 | plane = crtc->plane; | |
9442 | crtc->plane = !plane; | |
9443 | dev_priv->display.crtc_disable(&crtc->base); | |
9444 | crtc->plane = plane; | |
9445 | ||
9446 | /* ... and break all links. */ | |
9447 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
9448 | base.head) { | |
9449 | if (connector->encoder->base.crtc != &crtc->base) | |
9450 | continue; | |
9451 | ||
9452 | intel_connector_break_all_links(connector); | |
9453 | } | |
9454 | ||
9455 | WARN_ON(crtc->active); | |
9456 | crtc->base.enabled = false; | |
9457 | } | |
24929352 | 9458 | |
7fad798e DV |
9459 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
9460 | crtc->pipe == PIPE_A && !crtc->active) { | |
9461 | /* BIOS forgot to enable pipe A, this mostly happens after | |
9462 | * resume. Force-enable the pipe to fix this, the update_dpms | |
9463 | * call below we restore the pipe to the right state, but leave | |
9464 | * the required bits on. */ | |
9465 | intel_enable_pipe_a(dev); | |
9466 | } | |
9467 | ||
24929352 DV |
9468 | /* Adjust the state of the output pipe according to whether we |
9469 | * have active connectors/encoders. */ | |
9470 | intel_crtc_update_dpms(&crtc->base); | |
9471 | ||
9472 | if (crtc->active != crtc->base.enabled) { | |
9473 | struct intel_encoder *encoder; | |
9474 | ||
9475 | /* This can happen either due to bugs in the get_hw_state | |
9476 | * functions or because the pipe is force-enabled due to the | |
9477 | * pipe A quirk. */ | |
9478 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", | |
9479 | crtc->base.base.id, | |
9480 | crtc->base.enabled ? "enabled" : "disabled", | |
9481 | crtc->active ? "enabled" : "disabled"); | |
9482 | ||
9483 | crtc->base.enabled = crtc->active; | |
9484 | ||
9485 | /* Because we only establish the connector -> encoder -> | |
9486 | * crtc links if something is active, this means the | |
9487 | * crtc is now deactivated. Break the links. connector | |
9488 | * -> encoder links are only establish when things are | |
9489 | * actually up, hence no need to break them. */ | |
9490 | WARN_ON(crtc->active); | |
9491 | ||
9492 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { | |
9493 | WARN_ON(encoder->connectors_active); | |
9494 | encoder->base.crtc = NULL; | |
9495 | } | |
9496 | } | |
9497 | } | |
9498 | ||
9499 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
9500 | { | |
9501 | struct intel_connector *connector; | |
9502 | struct drm_device *dev = encoder->base.dev; | |
9503 | ||
9504 | /* We need to check both for a crtc link (meaning that the | |
9505 | * encoder is active and trying to read from a pipe) and the | |
9506 | * pipe itself being active. */ | |
9507 | bool has_active_crtc = encoder->base.crtc && | |
9508 | to_intel_crtc(encoder->base.crtc)->active; | |
9509 | ||
9510 | if (encoder->connectors_active && !has_active_crtc) { | |
9511 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", | |
9512 | encoder->base.base.id, | |
9513 | drm_get_encoder_name(&encoder->base)); | |
9514 | ||
9515 | /* Connector is active, but has no active pipe. This is | |
9516 | * fallout from our resume register restoring. Disable | |
9517 | * the encoder manually again. */ | |
9518 | if (encoder->base.crtc) { | |
9519 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
9520 | encoder->base.base.id, | |
9521 | drm_get_encoder_name(&encoder->base)); | |
9522 | encoder->disable(encoder); | |
9523 | } | |
9524 | ||
9525 | /* Inconsistent output/port/pipe state happens presumably due to | |
9526 | * a bug in one of the get_hw_state functions. Or someplace else | |
9527 | * in our code, like the register restore mess on resume. Clamp | |
9528 | * things to off as a safer default. */ | |
9529 | list_for_each_entry(connector, | |
9530 | &dev->mode_config.connector_list, | |
9531 | base.head) { | |
9532 | if (connector->encoder != encoder) | |
9533 | continue; | |
9534 | ||
9535 | intel_connector_break_all_links(connector); | |
9536 | } | |
9537 | } | |
9538 | /* Enabled encoders without active connectors will be fixed in | |
9539 | * the crtc fixup. */ | |
9540 | } | |
9541 | ||
44cec740 | 9542 | void i915_redisable_vga(struct drm_device *dev) |
0fde901f KM |
9543 | { |
9544 | struct drm_i915_private *dev_priv = dev->dev_private; | |
766aa1c4 | 9545 | u32 vga_reg = i915_vgacntrl_reg(dev); |
0fde901f KM |
9546 | |
9547 | if (I915_READ(vga_reg) != VGA_DISP_DISABLE) { | |
9548 | DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n"); | |
209d5211 | 9549 | i915_disable_vga(dev); |
0fde901f KM |
9550 | } |
9551 | } | |
9552 | ||
24929352 DV |
9553 | /* Scan out the current hw modeset state, sanitizes it and maps it into the drm |
9554 | * and i915 state tracking structures. */ | |
45e2b5f6 DV |
9555 | void intel_modeset_setup_hw_state(struct drm_device *dev, |
9556 | bool force_restore) | |
24929352 DV |
9557 | { |
9558 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9559 | enum pipe pipe; | |
b5644d05 | 9560 | struct drm_plane *plane; |
24929352 DV |
9561 | struct intel_crtc *crtc; |
9562 | struct intel_encoder *encoder; | |
9563 | struct intel_connector *connector; | |
9564 | ||
0e8ffe1b DV |
9565 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
9566 | base.head) { | |
88adfff1 | 9567 | memset(&crtc->config, 0, sizeof(crtc->config)); |
3b117c8f | 9568 | |
0e8ffe1b DV |
9569 | crtc->active = dev_priv->display.get_pipe_config(crtc, |
9570 | &crtc->config); | |
24929352 DV |
9571 | |
9572 | crtc->base.enabled = crtc->active; | |
9573 | ||
9574 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
9575 | crtc->base.base.id, | |
9576 | crtc->active ? "enabled" : "disabled"); | |
9577 | } | |
9578 | ||
affa9354 | 9579 | if (HAS_DDI(dev)) |
6441ab5f PZ |
9580 | intel_ddi_setup_hw_pll_state(dev); |
9581 | ||
24929352 DV |
9582 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
9583 | base.head) { | |
9584 | pipe = 0; | |
9585 | ||
9586 | if (encoder->get_hw_state(encoder, &pipe)) { | |
045ac3b5 JB |
9587 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
9588 | encoder->base.crtc = &crtc->base; | |
9589 | if (encoder->get_config) | |
9590 | encoder->get_config(encoder, &crtc->config); | |
24929352 DV |
9591 | } else { |
9592 | encoder->base.crtc = NULL; | |
9593 | } | |
9594 | ||
9595 | encoder->connectors_active = false; | |
9596 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n", | |
9597 | encoder->base.base.id, | |
9598 | drm_get_encoder_name(&encoder->base), | |
9599 | encoder->base.crtc ? "enabled" : "disabled", | |
9600 | pipe); | |
9601 | } | |
9602 | ||
9603 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
9604 | base.head) { | |
9605 | if (connector->get_hw_state(connector)) { | |
9606 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
9607 | connector->encoder->connectors_active = true; | |
9608 | connector->base.encoder = &connector->encoder->base; | |
9609 | } else { | |
9610 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
9611 | connector->base.encoder = NULL; | |
9612 | } | |
9613 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
9614 | connector->base.base.id, | |
9615 | drm_get_connector_name(&connector->base), | |
9616 | connector->base.encoder ? "enabled" : "disabled"); | |
9617 | } | |
9618 | ||
9619 | /* HW state is read out, now we need to sanitize this mess. */ | |
9620 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
9621 | base.head) { | |
9622 | intel_sanitize_encoder(encoder); | |
9623 | } | |
9624 | ||
9625 | for_each_pipe(pipe) { | |
9626 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
9627 | intel_sanitize_crtc(crtc); | |
c0b03411 | 9628 | intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]"); |
24929352 | 9629 | } |
9a935856 | 9630 | |
45e2b5f6 | 9631 | if (force_restore) { |
f30da187 DV |
9632 | /* |
9633 | * We need to use raw interfaces for restoring state to avoid | |
9634 | * checking (bogus) intermediate states. | |
9635 | */ | |
45e2b5f6 | 9636 | for_each_pipe(pipe) { |
b5644d05 JB |
9637 | struct drm_crtc *crtc = |
9638 | dev_priv->pipe_to_crtc_mapping[pipe]; | |
f30da187 DV |
9639 | |
9640 | __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, | |
9641 | crtc->fb); | |
45e2b5f6 | 9642 | } |
b5644d05 JB |
9643 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) |
9644 | intel_plane_restore(plane); | |
0fde901f KM |
9645 | |
9646 | i915_redisable_vga(dev); | |
45e2b5f6 DV |
9647 | } else { |
9648 | intel_modeset_update_staged_output_state(dev); | |
9649 | } | |
8af6cf88 DV |
9650 | |
9651 | intel_modeset_check_state(dev); | |
2e938892 DV |
9652 | |
9653 | drm_mode_config_reset(dev); | |
2c7111db CW |
9654 | } |
9655 | ||
9656 | void intel_modeset_gem_init(struct drm_device *dev) | |
9657 | { | |
1833b134 | 9658 | intel_modeset_init_hw(dev); |
02e792fb DV |
9659 | |
9660 | intel_setup_overlay(dev); | |
24929352 | 9661 | |
45e2b5f6 | 9662 | intel_modeset_setup_hw_state(dev, false); |
79e53945 JB |
9663 | } |
9664 | ||
9665 | void intel_modeset_cleanup(struct drm_device *dev) | |
9666 | { | |
652c393a JB |
9667 | struct drm_i915_private *dev_priv = dev->dev_private; |
9668 | struct drm_crtc *crtc; | |
9669 | struct intel_crtc *intel_crtc; | |
9670 | ||
fd0c0642 DV |
9671 | /* |
9672 | * Interrupts and polling as the first thing to avoid creating havoc. | |
9673 | * Too much stuff here (turning of rps, connectors, ...) would | |
9674 | * experience fancy races otherwise. | |
9675 | */ | |
9676 | drm_irq_uninstall(dev); | |
9677 | cancel_work_sync(&dev_priv->hotplug_work); | |
9678 | /* | |
9679 | * Due to the hpd irq storm handling the hotplug work can re-arm the | |
9680 | * poll handlers. Hence disable polling after hpd handling is shut down. | |
9681 | */ | |
f87ea761 | 9682 | drm_kms_helper_poll_fini(dev); |
fd0c0642 | 9683 | |
652c393a JB |
9684 | mutex_lock(&dev->struct_mutex); |
9685 | ||
723bfd70 JB |
9686 | intel_unregister_dsm_handler(); |
9687 | ||
652c393a JB |
9688 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
9689 | /* Skip inactive CRTCs */ | |
9690 | if (!crtc->fb) | |
9691 | continue; | |
9692 | ||
9693 | intel_crtc = to_intel_crtc(crtc); | |
3dec0095 | 9694 | intel_increase_pllclock(crtc); |
652c393a JB |
9695 | } |
9696 | ||
973d04f9 | 9697 | intel_disable_fbc(dev); |
e70236a8 | 9698 | |
8090c6b9 | 9699 | intel_disable_gt_powersave(dev); |
0cdab21f | 9700 | |
930ebb46 DV |
9701 | ironlake_teardown_rc6(dev); |
9702 | ||
69341a5e KH |
9703 | mutex_unlock(&dev->struct_mutex); |
9704 | ||
1630fe75 CW |
9705 | /* flush any delayed tasks or pending work */ |
9706 | flush_scheduled_work(); | |
9707 | ||
dc652f90 JN |
9708 | /* destroy backlight, if any, before the connectors */ |
9709 | intel_panel_destroy_backlight(dev); | |
9710 | ||
79e53945 | 9711 | drm_mode_config_cleanup(dev); |
4d7bb011 DV |
9712 | |
9713 | intel_cleanup_overlay(dev); | |
79e53945 JB |
9714 | } |
9715 | ||
f1c79df3 ZW |
9716 | /* |
9717 | * Return which encoder is currently attached for connector. | |
9718 | */ | |
df0e9248 | 9719 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 9720 | { |
df0e9248 CW |
9721 | return &intel_attached_encoder(connector)->base; |
9722 | } | |
f1c79df3 | 9723 | |
df0e9248 CW |
9724 | void intel_connector_attach_encoder(struct intel_connector *connector, |
9725 | struct intel_encoder *encoder) | |
9726 | { | |
9727 | connector->encoder = encoder; | |
9728 | drm_mode_connector_attach_encoder(&connector->base, | |
9729 | &encoder->base); | |
79e53945 | 9730 | } |
28d52043 DA |
9731 | |
9732 | /* | |
9733 | * set vga decode state - true == enable VGA decode | |
9734 | */ | |
9735 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
9736 | { | |
9737 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9738 | u16 gmch_ctrl; | |
9739 | ||
9740 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
9741 | if (state) | |
9742 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
9743 | else | |
9744 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
9745 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
9746 | return 0; | |
9747 | } | |
c4a1d9e4 CW |
9748 | |
9749 | #ifdef CONFIG_DEBUG_FS | |
9750 | #include <linux/seq_file.h> | |
9751 | ||
9752 | struct intel_display_error_state { | |
ff57f1b0 PZ |
9753 | |
9754 | u32 power_well_driver; | |
9755 | ||
c4a1d9e4 CW |
9756 | struct intel_cursor_error_state { |
9757 | u32 control; | |
9758 | u32 position; | |
9759 | u32 base; | |
9760 | u32 size; | |
52331309 | 9761 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
9762 | |
9763 | struct intel_pipe_error_state { | |
ff57f1b0 | 9764 | enum transcoder cpu_transcoder; |
c4a1d9e4 CW |
9765 | u32 conf; |
9766 | u32 source; | |
9767 | ||
9768 | u32 htotal; | |
9769 | u32 hblank; | |
9770 | u32 hsync; | |
9771 | u32 vtotal; | |
9772 | u32 vblank; | |
9773 | u32 vsync; | |
52331309 | 9774 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
9775 | |
9776 | struct intel_plane_error_state { | |
9777 | u32 control; | |
9778 | u32 stride; | |
9779 | u32 size; | |
9780 | u32 pos; | |
9781 | u32 addr; | |
9782 | u32 surface; | |
9783 | u32 tile_offset; | |
52331309 | 9784 | } plane[I915_MAX_PIPES]; |
c4a1d9e4 CW |
9785 | }; |
9786 | ||
9787 | struct intel_display_error_state * | |
9788 | intel_display_capture_error_state(struct drm_device *dev) | |
9789 | { | |
0206e353 | 9790 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 | 9791 | struct intel_display_error_state *error; |
702e7a56 | 9792 | enum transcoder cpu_transcoder; |
c4a1d9e4 CW |
9793 | int i; |
9794 | ||
9795 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
9796 | if (error == NULL) | |
9797 | return NULL; | |
9798 | ||
ff57f1b0 PZ |
9799 | if (HAS_POWER_WELL(dev)) |
9800 | error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER); | |
9801 | ||
52331309 | 9802 | for_each_pipe(i) { |
702e7a56 | 9803 | cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, i); |
ff57f1b0 | 9804 | error->pipe[i].cpu_transcoder = cpu_transcoder; |
702e7a56 | 9805 | |
a18c4c3d PZ |
9806 | if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) { |
9807 | error->cursor[i].control = I915_READ(CURCNTR(i)); | |
9808 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
9809 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
9810 | } else { | |
9811 | error->cursor[i].control = I915_READ(CURCNTR_IVB(i)); | |
9812 | error->cursor[i].position = I915_READ(CURPOS_IVB(i)); | |
9813 | error->cursor[i].base = I915_READ(CURBASE_IVB(i)); | |
9814 | } | |
c4a1d9e4 CW |
9815 | |
9816 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
9817 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
80ca378b | 9818 | if (INTEL_INFO(dev)->gen <= 3) { |
51889b35 | 9819 | error->plane[i].size = I915_READ(DSPSIZE(i)); |
80ca378b PZ |
9820 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
9821 | } | |
ca291363 PZ |
9822 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
9823 | error->plane[i].addr = I915_READ(DSPADDR(i)); | |
c4a1d9e4 CW |
9824 | if (INTEL_INFO(dev)->gen >= 4) { |
9825 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
9826 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
9827 | } | |
9828 | ||
702e7a56 | 9829 | error->pipe[i].conf = I915_READ(PIPECONF(cpu_transcoder)); |
c4a1d9e4 | 9830 | error->pipe[i].source = I915_READ(PIPESRC(i)); |
fe2b8f9d PZ |
9831 | error->pipe[i].htotal = I915_READ(HTOTAL(cpu_transcoder)); |
9832 | error->pipe[i].hblank = I915_READ(HBLANK(cpu_transcoder)); | |
9833 | error->pipe[i].hsync = I915_READ(HSYNC(cpu_transcoder)); | |
9834 | error->pipe[i].vtotal = I915_READ(VTOTAL(cpu_transcoder)); | |
9835 | error->pipe[i].vblank = I915_READ(VBLANK(cpu_transcoder)); | |
9836 | error->pipe[i].vsync = I915_READ(VSYNC(cpu_transcoder)); | |
c4a1d9e4 CW |
9837 | } |
9838 | ||
12d217c7 PZ |
9839 | /* In the code above we read the registers without checking if the power |
9840 | * well was on, so here we have to clear the FPGA_DBG_RM_NOCLAIM bit to | |
9841 | * prevent the next I915_WRITE from detecting it and printing an error | |
9842 | * message. */ | |
9843 | if (HAS_POWER_WELL(dev)) | |
9844 | I915_WRITE_NOTRACE(FPGA_DBG, FPGA_DBG_RM_NOCLAIM); | |
9845 | ||
c4a1d9e4 CW |
9846 | return error; |
9847 | } | |
9848 | ||
edc3d884 MK |
9849 | #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__) |
9850 | ||
c4a1d9e4 | 9851 | void |
edc3d884 | 9852 | intel_display_print_error_state(struct drm_i915_error_state_buf *m, |
c4a1d9e4 CW |
9853 | struct drm_device *dev, |
9854 | struct intel_display_error_state *error) | |
9855 | { | |
9856 | int i; | |
9857 | ||
edc3d884 | 9858 | err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes); |
ff57f1b0 | 9859 | if (HAS_POWER_WELL(dev)) |
edc3d884 | 9860 | err_printf(m, "PWR_WELL_CTL2: %08x\n", |
ff57f1b0 | 9861 | error->power_well_driver); |
52331309 | 9862 | for_each_pipe(i) { |
edc3d884 MK |
9863 | err_printf(m, "Pipe [%d]:\n", i); |
9864 | err_printf(m, " CPU transcoder: %c\n", | |
ff57f1b0 | 9865 | transcoder_name(error->pipe[i].cpu_transcoder)); |
edc3d884 MK |
9866 | err_printf(m, " CONF: %08x\n", error->pipe[i].conf); |
9867 | err_printf(m, " SRC: %08x\n", error->pipe[i].source); | |
9868 | err_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); | |
9869 | err_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); | |
9870 | err_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); | |
9871 | err_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); | |
9872 | err_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); | |
9873 | err_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); | |
9874 | ||
9875 | err_printf(m, "Plane [%d]:\n", i); | |
9876 | err_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
9877 | err_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
80ca378b | 9878 | if (INTEL_INFO(dev)->gen <= 3) { |
edc3d884 MK |
9879 | err_printf(m, " SIZE: %08x\n", error->plane[i].size); |
9880 | err_printf(m, " POS: %08x\n", error->plane[i].pos); | |
80ca378b | 9881 | } |
4b71a570 | 9882 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
edc3d884 | 9883 | err_printf(m, " ADDR: %08x\n", error->plane[i].addr); |
c4a1d9e4 | 9884 | if (INTEL_INFO(dev)->gen >= 4) { |
edc3d884 MK |
9885 | err_printf(m, " SURF: %08x\n", error->plane[i].surface); |
9886 | err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
c4a1d9e4 CW |
9887 | } |
9888 | ||
edc3d884 MK |
9889 | err_printf(m, "Cursor [%d]:\n", i); |
9890 | err_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
9891 | err_printf(m, " POS: %08x\n", error->cursor[i].position); | |
9892 | err_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
c4a1d9e4 CW |
9893 | } |
9894 | } | |
9895 | #endif |