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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 | |
32f9d658 ZW |
44 | #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) |
45 | ||
0206e353 | 46 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type); |
3dec0095 | 47 | static void intel_increase_pllclock(struct drm_crtc *crtc); |
6b383a7f | 48 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
79e53945 JB |
49 | |
50 | typedef struct { | |
0206e353 AJ |
51 | /* given values */ |
52 | int n; | |
53 | int m1, m2; | |
54 | int p1, p2; | |
55 | /* derived values */ | |
56 | int dot; | |
57 | int vco; | |
58 | int m; | |
59 | int p; | |
79e53945 JB |
60 | } intel_clock_t; |
61 | ||
62 | typedef struct { | |
0206e353 | 63 | int min, max; |
79e53945 JB |
64 | } intel_range_t; |
65 | ||
66 | typedef struct { | |
0206e353 AJ |
67 | int dot_limit; |
68 | int p2_slow, p2_fast; | |
79e53945 JB |
69 | } intel_p2_t; |
70 | ||
71 | #define INTEL_P2_NUM 2 | |
d4906093 ML |
72 | typedef struct intel_limit intel_limit_t; |
73 | struct intel_limit { | |
0206e353 AJ |
74 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
75 | intel_p2_t p2; | |
76 | bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, | |
cec2f356 | 77 | int, int, intel_clock_t *, intel_clock_t *); |
d4906093 | 78 | }; |
79e53945 | 79 | |
2377b741 JB |
80 | /* FDI */ |
81 | #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */ | |
82 | ||
d2acd215 DV |
83 | int |
84 | intel_pch_rawclk(struct drm_device *dev) | |
85 | { | |
86 | struct drm_i915_private *dev_priv = dev->dev_private; | |
87 | ||
88 | WARN_ON(!HAS_PCH_SPLIT(dev)); | |
89 | ||
90 | return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK; | |
91 | } | |
92 | ||
d4906093 ML |
93 | static bool |
94 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
95 | int target, int refclk, intel_clock_t *match_clock, |
96 | intel_clock_t *best_clock); | |
d4906093 ML |
97 | static bool |
98 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
99 | int target, int refclk, intel_clock_t *match_clock, |
100 | intel_clock_t *best_clock); | |
79e53945 | 101 | |
a4fc5ed6 KP |
102 | static bool |
103 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, | |
cec2f356 SP |
104 | int target, int refclk, intel_clock_t *match_clock, |
105 | intel_clock_t *best_clock); | |
5eb08b69 | 106 | static bool |
f2b115e6 | 107 | intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc, |
cec2f356 SP |
108 | int target, int refclk, intel_clock_t *match_clock, |
109 | intel_clock_t *best_clock); | |
a4fc5ed6 | 110 | |
a0c4da24 JB |
111 | static bool |
112 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
113 | int target, int refclk, intel_clock_t *match_clock, | |
114 | intel_clock_t *best_clock); | |
115 | ||
021357ac CW |
116 | static inline u32 /* units of 100MHz */ |
117 | intel_fdi_link_freq(struct drm_device *dev) | |
118 | { | |
8b99e68c CW |
119 | if (IS_GEN5(dev)) { |
120 | struct drm_i915_private *dev_priv = dev->dev_private; | |
121 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
122 | } else | |
123 | return 27; | |
021357ac CW |
124 | } |
125 | ||
e4b36699 | 126 | static const intel_limit_t intel_limits_i8xx_dvo = { |
0206e353 AJ |
127 | .dot = { .min = 25000, .max = 350000 }, |
128 | .vco = { .min = 930000, .max = 1400000 }, | |
129 | .n = { .min = 3, .max = 16 }, | |
130 | .m = { .min = 96, .max = 140 }, | |
131 | .m1 = { .min = 18, .max = 26 }, | |
132 | .m2 = { .min = 6, .max = 16 }, | |
133 | .p = { .min = 4, .max = 128 }, | |
134 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
135 | .p2 = { .dot_limit = 165000, |
136 | .p2_slow = 4, .p2_fast = 2 }, | |
d4906093 | 137 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
138 | }; |
139 | ||
140 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
0206e353 AJ |
141 | .dot = { .min = 25000, .max = 350000 }, |
142 | .vco = { .min = 930000, .max = 1400000 }, | |
143 | .n = { .min = 3, .max = 16 }, | |
144 | .m = { .min = 96, .max = 140 }, | |
145 | .m1 = { .min = 18, .max = 26 }, | |
146 | .m2 = { .min = 6, .max = 16 }, | |
147 | .p = { .min = 4, .max = 128 }, | |
148 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
149 | .p2 = { .dot_limit = 165000, |
150 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 151 | .find_pll = intel_find_best_PLL, |
e4b36699 | 152 | }; |
273e27ca | 153 | |
e4b36699 | 154 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
155 | .dot = { .min = 20000, .max = 400000 }, |
156 | .vco = { .min = 1400000, .max = 2800000 }, | |
157 | .n = { .min = 1, .max = 6 }, | |
158 | .m = { .min = 70, .max = 120 }, | |
159 | .m1 = { .min = 10, .max = 22 }, | |
160 | .m2 = { .min = 5, .max = 9 }, | |
161 | .p = { .min = 5, .max = 80 }, | |
162 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
163 | .p2 = { .dot_limit = 200000, |
164 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 165 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
166 | }; |
167 | ||
168 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
169 | .dot = { .min = 20000, .max = 400000 }, |
170 | .vco = { .min = 1400000, .max = 2800000 }, | |
171 | .n = { .min = 1, .max = 6 }, | |
172 | .m = { .min = 70, .max = 120 }, | |
173 | .m1 = { .min = 10, .max = 22 }, | |
174 | .m2 = { .min = 5, .max = 9 }, | |
175 | .p = { .min = 7, .max = 98 }, | |
176 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
177 | .p2 = { .dot_limit = 112000, |
178 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 179 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
180 | }; |
181 | ||
273e27ca | 182 | |
e4b36699 | 183 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
184 | .dot = { .min = 25000, .max = 270000 }, |
185 | .vco = { .min = 1750000, .max = 3500000}, | |
186 | .n = { .min = 1, .max = 4 }, | |
187 | .m = { .min = 104, .max = 138 }, | |
188 | .m1 = { .min = 17, .max = 23 }, | |
189 | .m2 = { .min = 5, .max = 11 }, | |
190 | .p = { .min = 10, .max = 30 }, | |
191 | .p1 = { .min = 1, .max = 3}, | |
192 | .p2 = { .dot_limit = 270000, | |
193 | .p2_slow = 10, | |
194 | .p2_fast = 10 | |
044c7c41 | 195 | }, |
d4906093 | 196 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
197 | }; |
198 | ||
199 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
200 | .dot = { .min = 22000, .max = 400000 }, |
201 | .vco = { .min = 1750000, .max = 3500000}, | |
202 | .n = { .min = 1, .max = 4 }, | |
203 | .m = { .min = 104, .max = 138 }, | |
204 | .m1 = { .min = 16, .max = 23 }, | |
205 | .m2 = { .min = 5, .max = 11 }, | |
206 | .p = { .min = 5, .max = 80 }, | |
207 | .p1 = { .min = 1, .max = 8}, | |
208 | .p2 = { .dot_limit = 165000, | |
209 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 210 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
211 | }; |
212 | ||
213 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
214 | .dot = { .min = 20000, .max = 115000 }, |
215 | .vco = { .min = 1750000, .max = 3500000 }, | |
216 | .n = { .min = 1, .max = 3 }, | |
217 | .m = { .min = 104, .max = 138 }, | |
218 | .m1 = { .min = 17, .max = 23 }, | |
219 | .m2 = { .min = 5, .max = 11 }, | |
220 | .p = { .min = 28, .max = 112 }, | |
221 | .p1 = { .min = 2, .max = 8 }, | |
222 | .p2 = { .dot_limit = 0, | |
223 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 224 | }, |
d4906093 | 225 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
226 | }; |
227 | ||
228 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
229 | .dot = { .min = 80000, .max = 224000 }, |
230 | .vco = { .min = 1750000, .max = 3500000 }, | |
231 | .n = { .min = 1, .max = 3 }, | |
232 | .m = { .min = 104, .max = 138 }, | |
233 | .m1 = { .min = 17, .max = 23 }, | |
234 | .m2 = { .min = 5, .max = 11 }, | |
235 | .p = { .min = 14, .max = 42 }, | |
236 | .p1 = { .min = 2, .max = 6 }, | |
237 | .p2 = { .dot_limit = 0, | |
238 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 239 | }, |
d4906093 | 240 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
241 | }; |
242 | ||
243 | static const intel_limit_t intel_limits_g4x_display_port = { | |
0206e353 AJ |
244 | .dot = { .min = 161670, .max = 227000 }, |
245 | .vco = { .min = 1750000, .max = 3500000}, | |
246 | .n = { .min = 1, .max = 2 }, | |
247 | .m = { .min = 97, .max = 108 }, | |
248 | .m1 = { .min = 0x10, .max = 0x12 }, | |
249 | .m2 = { .min = 0x05, .max = 0x06 }, | |
250 | .p = { .min = 10, .max = 20 }, | |
251 | .p1 = { .min = 1, .max = 2}, | |
252 | .p2 = { .dot_limit = 0, | |
273e27ca | 253 | .p2_slow = 10, .p2_fast = 10 }, |
0206e353 | 254 | .find_pll = intel_find_pll_g4x_dp, |
e4b36699 KP |
255 | }; |
256 | ||
f2b115e6 | 257 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
258 | .dot = { .min = 20000, .max = 400000}, |
259 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 260 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
261 | .n = { .min = 3, .max = 6 }, |
262 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 263 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
264 | .m1 = { .min = 0, .max = 0 }, |
265 | .m2 = { .min = 0, .max = 254 }, | |
266 | .p = { .min = 5, .max = 80 }, | |
267 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
268 | .p2 = { .dot_limit = 200000, |
269 | .p2_slow = 10, .p2_fast = 5 }, | |
6115707b | 270 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
271 | }; |
272 | ||
f2b115e6 | 273 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
274 | .dot = { .min = 20000, .max = 400000 }, |
275 | .vco = { .min = 1700000, .max = 3500000 }, | |
276 | .n = { .min = 3, .max = 6 }, | |
277 | .m = { .min = 2, .max = 256 }, | |
278 | .m1 = { .min = 0, .max = 0 }, | |
279 | .m2 = { .min = 0, .max = 254 }, | |
280 | .p = { .min = 7, .max = 112 }, | |
281 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
282 | .p2 = { .dot_limit = 112000, |
283 | .p2_slow = 14, .p2_fast = 14 }, | |
6115707b | 284 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
285 | }; |
286 | ||
273e27ca EA |
287 | /* Ironlake / Sandybridge |
288 | * | |
289 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
290 | * the range value for them is (actual_value - 2). | |
291 | */ | |
b91ad0ec | 292 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
293 | .dot = { .min = 25000, .max = 350000 }, |
294 | .vco = { .min = 1760000, .max = 3510000 }, | |
295 | .n = { .min = 1, .max = 5 }, | |
296 | .m = { .min = 79, .max = 127 }, | |
297 | .m1 = { .min = 12, .max = 22 }, | |
298 | .m2 = { .min = 5, .max = 9 }, | |
299 | .p = { .min = 5, .max = 80 }, | |
300 | .p1 = { .min = 1, .max = 8 }, | |
301 | .p2 = { .dot_limit = 225000, | |
302 | .p2_slow = 10, .p2_fast = 5 }, | |
4547668a | 303 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
304 | }; |
305 | ||
b91ad0ec | 306 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
307 | .dot = { .min = 25000, .max = 350000 }, |
308 | .vco = { .min = 1760000, .max = 3510000 }, | |
309 | .n = { .min = 1, .max = 3 }, | |
310 | .m = { .min = 79, .max = 118 }, | |
311 | .m1 = { .min = 12, .max = 22 }, | |
312 | .m2 = { .min = 5, .max = 9 }, | |
313 | .p = { .min = 28, .max = 112 }, | |
314 | .p1 = { .min = 2, .max = 8 }, | |
315 | .p2 = { .dot_limit = 225000, | |
316 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
317 | .find_pll = intel_g4x_find_best_PLL, |
318 | }; | |
319 | ||
320 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
321 | .dot = { .min = 25000, .max = 350000 }, |
322 | .vco = { .min = 1760000, .max = 3510000 }, | |
323 | .n = { .min = 1, .max = 3 }, | |
324 | .m = { .min = 79, .max = 127 }, | |
325 | .m1 = { .min = 12, .max = 22 }, | |
326 | .m2 = { .min = 5, .max = 9 }, | |
327 | .p = { .min = 14, .max = 56 }, | |
328 | .p1 = { .min = 2, .max = 8 }, | |
329 | .p2 = { .dot_limit = 225000, | |
330 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
331 | .find_pll = intel_g4x_find_best_PLL, |
332 | }; | |
333 | ||
273e27ca | 334 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 335 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
336 | .dot = { .min = 25000, .max = 350000 }, |
337 | .vco = { .min = 1760000, .max = 3510000 }, | |
338 | .n = { .min = 1, .max = 2 }, | |
339 | .m = { .min = 79, .max = 126 }, | |
340 | .m1 = { .min = 12, .max = 22 }, | |
341 | .m2 = { .min = 5, .max = 9 }, | |
342 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 343 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
344 | .p2 = { .dot_limit = 225000, |
345 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
346 | .find_pll = intel_g4x_find_best_PLL, |
347 | }; | |
348 | ||
349 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
350 | .dot = { .min = 25000, .max = 350000 }, |
351 | .vco = { .min = 1760000, .max = 3510000 }, | |
352 | .n = { .min = 1, .max = 3 }, | |
353 | .m = { .min = 79, .max = 126 }, | |
354 | .m1 = { .min = 12, .max = 22 }, | |
355 | .m2 = { .min = 5, .max = 9 }, | |
356 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 357 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
358 | .p2 = { .dot_limit = 225000, |
359 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
360 | .find_pll = intel_g4x_find_best_PLL, |
361 | }; | |
362 | ||
363 | static const intel_limit_t intel_limits_ironlake_display_port = { | |
0206e353 AJ |
364 | .dot = { .min = 25000, .max = 350000 }, |
365 | .vco = { .min = 1760000, .max = 3510000}, | |
366 | .n = { .min = 1, .max = 2 }, | |
367 | .m = { .min = 81, .max = 90 }, | |
368 | .m1 = { .min = 12, .max = 22 }, | |
369 | .m2 = { .min = 5, .max = 9 }, | |
370 | .p = { .min = 10, .max = 20 }, | |
371 | .p1 = { .min = 1, .max = 2}, | |
372 | .p2 = { .dot_limit = 0, | |
273e27ca | 373 | .p2_slow = 10, .p2_fast = 10 }, |
0206e353 | 374 | .find_pll = intel_find_pll_ironlake_dp, |
79e53945 JB |
375 | }; |
376 | ||
a0c4da24 JB |
377 | static const intel_limit_t intel_limits_vlv_dac = { |
378 | .dot = { .min = 25000, .max = 270000 }, | |
379 | .vco = { .min = 4000000, .max = 6000000 }, | |
380 | .n = { .min = 1, .max = 7 }, | |
381 | .m = { .min = 22, .max = 450 }, /* guess */ | |
382 | .m1 = { .min = 2, .max = 3 }, | |
383 | .m2 = { .min = 11, .max = 156 }, | |
384 | .p = { .min = 10, .max = 30 }, | |
385 | .p1 = { .min = 2, .max = 3 }, | |
386 | .p2 = { .dot_limit = 270000, | |
387 | .p2_slow = 2, .p2_fast = 20 }, | |
388 | .find_pll = intel_vlv_find_best_pll, | |
389 | }; | |
390 | ||
391 | static const intel_limit_t intel_limits_vlv_hdmi = { | |
392 | .dot = { .min = 20000, .max = 165000 }, | |
17dc9257 | 393 | .vco = { .min = 4000000, .max = 5994000}, |
a0c4da24 JB |
394 | .n = { .min = 1, .max = 7 }, |
395 | .m = { .min = 60, .max = 300 }, /* guess */ | |
396 | .m1 = { .min = 2, .max = 3 }, | |
397 | .m2 = { .min = 11, .max = 156 }, | |
398 | .p = { .min = 10, .max = 30 }, | |
399 | .p1 = { .min = 2, .max = 3 }, | |
400 | .p2 = { .dot_limit = 270000, | |
401 | .p2_slow = 2, .p2_fast = 20 }, | |
402 | .find_pll = intel_vlv_find_best_pll, | |
403 | }; | |
404 | ||
405 | static const intel_limit_t intel_limits_vlv_dp = { | |
74a4dd2e VP |
406 | .dot = { .min = 25000, .max = 270000 }, |
407 | .vco = { .min = 4000000, .max = 6000000 }, | |
a0c4da24 | 408 | .n = { .min = 1, .max = 7 }, |
74a4dd2e | 409 | .m = { .min = 22, .max = 450 }, |
a0c4da24 JB |
410 | .m1 = { .min = 2, .max = 3 }, |
411 | .m2 = { .min = 11, .max = 156 }, | |
412 | .p = { .min = 10, .max = 30 }, | |
413 | .p1 = { .min = 2, .max = 3 }, | |
414 | .p2 = { .dot_limit = 270000, | |
415 | .p2_slow = 2, .p2_fast = 20 }, | |
416 | .find_pll = intel_vlv_find_best_pll, | |
417 | }; | |
418 | ||
57f350b6 JB |
419 | u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg) |
420 | { | |
421 | unsigned long flags; | |
422 | u32 val = 0; | |
423 | ||
424 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
425 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
426 | DRM_ERROR("DPIO idle wait timed out\n"); | |
427 | goto out_unlock; | |
428 | } | |
429 | ||
430 | I915_WRITE(DPIO_REG, reg); | |
431 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_READ | DPIO_PORTID | | |
432 | DPIO_BYTE); | |
433 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
434 | DRM_ERROR("DPIO read wait timed out\n"); | |
435 | goto out_unlock; | |
436 | } | |
437 | val = I915_READ(DPIO_DATA); | |
438 | ||
439 | out_unlock: | |
440 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
441 | return val; | |
442 | } | |
443 | ||
a0c4da24 JB |
444 | static void intel_dpio_write(struct drm_i915_private *dev_priv, int reg, |
445 | u32 val) | |
446 | { | |
447 | unsigned long flags; | |
448 | ||
449 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
450 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
451 | DRM_ERROR("DPIO idle wait timed out\n"); | |
452 | goto out_unlock; | |
453 | } | |
454 | ||
455 | I915_WRITE(DPIO_DATA, val); | |
456 | I915_WRITE(DPIO_REG, reg); | |
457 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_WRITE | DPIO_PORTID | | |
458 | DPIO_BYTE); | |
459 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) | |
460 | DRM_ERROR("DPIO write wait timed out\n"); | |
461 | ||
462 | out_unlock: | |
463 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
464 | } | |
465 | ||
57f350b6 JB |
466 | static void vlv_init_dpio(struct drm_device *dev) |
467 | { | |
468 | struct drm_i915_private *dev_priv = dev->dev_private; | |
469 | ||
470 | /* Reset the DPIO config */ | |
471 | I915_WRITE(DPIO_CTL, 0); | |
472 | POSTING_READ(DPIO_CTL); | |
473 | I915_WRITE(DPIO_CTL, 1); | |
474 | POSTING_READ(DPIO_CTL); | |
475 | } | |
476 | ||
618563e3 DV |
477 | static int intel_dual_link_lvds_callback(const struct dmi_system_id *id) |
478 | { | |
479 | DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident); | |
480 | return 1; | |
481 | } | |
482 | ||
483 | static const struct dmi_system_id intel_dual_link_lvds[] = { | |
484 | { | |
485 | .callback = intel_dual_link_lvds_callback, | |
486 | .ident = "Apple MacBook Pro (Core i5/i7 Series)", | |
487 | .matches = { | |
488 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), | |
489 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), | |
490 | }, | |
491 | }, | |
492 | { } /* terminating entry */ | |
493 | }; | |
494 | ||
b0354385 TI |
495 | static bool is_dual_link_lvds(struct drm_i915_private *dev_priv, |
496 | unsigned int reg) | |
497 | { | |
498 | unsigned int val; | |
499 | ||
121d527a TI |
500 | /* use the module option value if specified */ |
501 | if (i915_lvds_channel_mode > 0) | |
502 | return i915_lvds_channel_mode == 2; | |
503 | ||
618563e3 DV |
504 | if (dmi_check_system(intel_dual_link_lvds)) |
505 | return true; | |
506 | ||
b0354385 TI |
507 | if (dev_priv->lvds_val) |
508 | val = dev_priv->lvds_val; | |
509 | else { | |
510 | /* BIOS should set the proper LVDS register value at boot, but | |
511 | * in reality, it doesn't set the value when the lid is closed; | |
512 | * we need to check "the value to be set" in VBT when LVDS | |
513 | * register is uninitialized. | |
514 | */ | |
515 | val = I915_READ(reg); | |
14d94a3d | 516 | if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED))) |
b0354385 TI |
517 | val = dev_priv->bios_lvds_val; |
518 | dev_priv->lvds_val = val; | |
519 | } | |
520 | return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP; | |
521 | } | |
522 | ||
1b894b59 CW |
523 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
524 | int refclk) | |
2c07245f | 525 | { |
b91ad0ec ZW |
526 | struct drm_device *dev = crtc->dev; |
527 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2c07245f | 528 | const intel_limit_t *limit; |
b91ad0ec ZW |
529 | |
530 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b0354385 | 531 | if (is_dual_link_lvds(dev_priv, PCH_LVDS)) { |
b91ad0ec | 532 | /* LVDS dual channel */ |
1b894b59 | 533 | if (refclk == 100000) |
b91ad0ec ZW |
534 | limit = &intel_limits_ironlake_dual_lvds_100m; |
535 | else | |
536 | limit = &intel_limits_ironlake_dual_lvds; | |
537 | } else { | |
1b894b59 | 538 | if (refclk == 100000) |
b91ad0ec ZW |
539 | limit = &intel_limits_ironlake_single_lvds_100m; |
540 | else | |
541 | limit = &intel_limits_ironlake_single_lvds; | |
542 | } | |
543 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || | |
4547668a ZY |
544 | HAS_eDP) |
545 | limit = &intel_limits_ironlake_display_port; | |
2c07245f | 546 | else |
b91ad0ec | 547 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
548 | |
549 | return limit; | |
550 | } | |
551 | ||
044c7c41 ML |
552 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
553 | { | |
554 | struct drm_device *dev = crtc->dev; | |
555 | struct drm_i915_private *dev_priv = dev->dev_private; | |
556 | const intel_limit_t *limit; | |
557 | ||
558 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b0354385 | 559 | if (is_dual_link_lvds(dev_priv, LVDS)) |
044c7c41 | 560 | /* LVDS with dual channel */ |
e4b36699 | 561 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 ML |
562 | else |
563 | /* LVDS with dual channel */ | |
e4b36699 | 564 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
565 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
566 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 567 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 568 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 569 | limit = &intel_limits_g4x_sdvo; |
0206e353 | 570 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
e4b36699 | 571 | limit = &intel_limits_g4x_display_port; |
044c7c41 | 572 | } else /* The option is for other outputs */ |
e4b36699 | 573 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
574 | |
575 | return limit; | |
576 | } | |
577 | ||
1b894b59 | 578 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
79e53945 JB |
579 | { |
580 | struct drm_device *dev = crtc->dev; | |
581 | const intel_limit_t *limit; | |
582 | ||
bad720ff | 583 | if (HAS_PCH_SPLIT(dev)) |
1b894b59 | 584 | limit = intel_ironlake_limit(crtc, refclk); |
2c07245f | 585 | else if (IS_G4X(dev)) { |
044c7c41 | 586 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 587 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 588 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 589 | limit = &intel_limits_pineview_lvds; |
2177832f | 590 | else |
f2b115e6 | 591 | limit = &intel_limits_pineview_sdvo; |
a0c4da24 JB |
592 | } else if (IS_VALLEYVIEW(dev)) { |
593 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) | |
594 | limit = &intel_limits_vlv_dac; | |
595 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
596 | limit = &intel_limits_vlv_hdmi; | |
597 | else | |
598 | limit = &intel_limits_vlv_dp; | |
a6c45cf0 CW |
599 | } else if (!IS_GEN2(dev)) { |
600 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
601 | limit = &intel_limits_i9xx_lvds; | |
602 | else | |
603 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 JB |
604 | } else { |
605 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 606 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 607 | else |
e4b36699 | 608 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
609 | } |
610 | return limit; | |
611 | } | |
612 | ||
f2b115e6 AJ |
613 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
614 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 615 | { |
2177832f SL |
616 | clock->m = clock->m2 + 2; |
617 | clock->p = clock->p1 * clock->p2; | |
618 | clock->vco = refclk * clock->m / clock->n; | |
619 | clock->dot = clock->vco / clock->p; | |
620 | } | |
621 | ||
622 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) | |
623 | { | |
f2b115e6 AJ |
624 | if (IS_PINEVIEW(dev)) { |
625 | pineview_clock(refclk, clock); | |
2177832f SL |
626 | return; |
627 | } | |
79e53945 JB |
628 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
629 | clock->p = clock->p1 * clock->p2; | |
630 | clock->vco = refclk * clock->m / (clock->n + 2); | |
631 | clock->dot = clock->vco / clock->p; | |
632 | } | |
633 | ||
79e53945 JB |
634 | /** |
635 | * Returns whether any output on the specified pipe is of the specified type | |
636 | */ | |
4ef69c7a | 637 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
79e53945 | 638 | { |
4ef69c7a | 639 | struct drm_device *dev = crtc->dev; |
4ef69c7a CW |
640 | struct intel_encoder *encoder; |
641 | ||
6c2b7c12 DV |
642 | for_each_encoder_on_crtc(dev, crtc, encoder) |
643 | if (encoder->type == type) | |
4ef69c7a CW |
644 | return true; |
645 | ||
646 | return false; | |
79e53945 JB |
647 | } |
648 | ||
7c04d1d9 | 649 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
650 | /** |
651 | * Returns whether the given set of divisors are valid for a given refclk with | |
652 | * the given connectors. | |
653 | */ | |
654 | ||
1b894b59 CW |
655 | static bool intel_PLL_is_valid(struct drm_device *dev, |
656 | const intel_limit_t *limit, | |
657 | const intel_clock_t *clock) | |
79e53945 | 658 | { |
79e53945 | 659 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 660 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 661 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
0206e353 | 662 | INTELPllInvalid("p out of range\n"); |
79e53945 | 663 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 664 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 665 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 666 | INTELPllInvalid("m1 out of range\n"); |
f2b115e6 | 667 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
0206e353 | 668 | INTELPllInvalid("m1 <= m2\n"); |
79e53945 | 669 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
0206e353 | 670 | INTELPllInvalid("m out of range\n"); |
79e53945 | 671 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
0206e353 | 672 | INTELPllInvalid("n out of range\n"); |
79e53945 | 673 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 674 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
675 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
676 | * connector, etc., rather than just a single range. | |
677 | */ | |
678 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 679 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
680 | |
681 | return true; | |
682 | } | |
683 | ||
d4906093 ML |
684 | static bool |
685 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
686 | int target, int refclk, intel_clock_t *match_clock, |
687 | intel_clock_t *best_clock) | |
d4906093 | 688 | |
79e53945 JB |
689 | { |
690 | struct drm_device *dev = crtc->dev; | |
691 | struct drm_i915_private *dev_priv = dev->dev_private; | |
692 | intel_clock_t clock; | |
79e53945 JB |
693 | int err = target; |
694 | ||
bc5e5718 | 695 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
832cc28d | 696 | (I915_READ(LVDS)) != 0) { |
79e53945 JB |
697 | /* |
698 | * For LVDS, if the panel is on, just rely on its current | |
699 | * settings for dual-channel. We haven't figured out how to | |
700 | * reliably set up different single/dual channel state, if we | |
701 | * even can. | |
702 | */ | |
b0354385 | 703 | if (is_dual_link_lvds(dev_priv, LVDS)) |
79e53945 JB |
704 | clock.p2 = limit->p2.p2_fast; |
705 | else | |
706 | clock.p2 = limit->p2.p2_slow; | |
707 | } else { | |
708 | if (target < limit->p2.dot_limit) | |
709 | clock.p2 = limit->p2.p2_slow; | |
710 | else | |
711 | clock.p2 = limit->p2.p2_fast; | |
712 | } | |
713 | ||
0206e353 | 714 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 715 | |
42158660 ZY |
716 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
717 | clock.m1++) { | |
718 | for (clock.m2 = limit->m2.min; | |
719 | clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
720 | /* m1 is always 0 in Pineview */ |
721 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
42158660 ZY |
722 | break; |
723 | for (clock.n = limit->n.min; | |
724 | clock.n <= limit->n.max; clock.n++) { | |
725 | for (clock.p1 = limit->p1.min; | |
726 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
727 | int this_err; |
728 | ||
2177832f | 729 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
730 | if (!intel_PLL_is_valid(dev, limit, |
731 | &clock)) | |
79e53945 | 732 | continue; |
cec2f356 SP |
733 | if (match_clock && |
734 | clock.p != match_clock->p) | |
735 | continue; | |
79e53945 JB |
736 | |
737 | this_err = abs(clock.dot - target); | |
738 | if (this_err < err) { | |
739 | *best_clock = clock; | |
740 | err = this_err; | |
741 | } | |
742 | } | |
743 | } | |
744 | } | |
745 | } | |
746 | ||
747 | return (err != target); | |
748 | } | |
749 | ||
d4906093 ML |
750 | static bool |
751 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
752 | int target, int refclk, intel_clock_t *match_clock, |
753 | intel_clock_t *best_clock) | |
d4906093 ML |
754 | { |
755 | struct drm_device *dev = crtc->dev; | |
756 | struct drm_i915_private *dev_priv = dev->dev_private; | |
757 | intel_clock_t clock; | |
758 | int max_n; | |
759 | bool found; | |
6ba770dc AJ |
760 | /* approximately equals target * 0.00585 */ |
761 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
762 | found = false; |
763 | ||
764 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4547668a ZY |
765 | int lvds_reg; |
766 | ||
c619eed4 | 767 | if (HAS_PCH_SPLIT(dev)) |
4547668a ZY |
768 | lvds_reg = PCH_LVDS; |
769 | else | |
770 | lvds_reg = LVDS; | |
771 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == | |
d4906093 ML |
772 | LVDS_CLKB_POWER_UP) |
773 | clock.p2 = limit->p2.p2_fast; | |
774 | else | |
775 | clock.p2 = limit->p2.p2_slow; | |
776 | } else { | |
777 | if (target < limit->p2.dot_limit) | |
778 | clock.p2 = limit->p2.p2_slow; | |
779 | else | |
780 | clock.p2 = limit->p2.p2_fast; | |
781 | } | |
782 | ||
783 | memset(best_clock, 0, sizeof(*best_clock)); | |
784 | max_n = limit->n.max; | |
f77f13e2 | 785 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 786 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 787 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
788 | for (clock.m1 = limit->m1.max; |
789 | clock.m1 >= limit->m1.min; clock.m1--) { | |
790 | for (clock.m2 = limit->m2.max; | |
791 | clock.m2 >= limit->m2.min; clock.m2--) { | |
792 | for (clock.p1 = limit->p1.max; | |
793 | clock.p1 >= limit->p1.min; clock.p1--) { | |
794 | int this_err; | |
795 | ||
2177832f | 796 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
797 | if (!intel_PLL_is_valid(dev, limit, |
798 | &clock)) | |
d4906093 | 799 | continue; |
cec2f356 SP |
800 | if (match_clock && |
801 | clock.p != match_clock->p) | |
802 | continue; | |
1b894b59 CW |
803 | |
804 | this_err = abs(clock.dot - target); | |
d4906093 ML |
805 | if (this_err < err_most) { |
806 | *best_clock = clock; | |
807 | err_most = this_err; | |
808 | max_n = clock.n; | |
809 | found = true; | |
810 | } | |
811 | } | |
812 | } | |
813 | } | |
814 | } | |
2c07245f ZW |
815 | return found; |
816 | } | |
817 | ||
5eb08b69 | 818 | static bool |
f2b115e6 | 819 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
cec2f356 SP |
820 | int target, int refclk, intel_clock_t *match_clock, |
821 | intel_clock_t *best_clock) | |
5eb08b69 ZW |
822 | { |
823 | struct drm_device *dev = crtc->dev; | |
824 | intel_clock_t clock; | |
4547668a | 825 | |
5eb08b69 ZW |
826 | if (target < 200000) { |
827 | clock.n = 1; | |
828 | clock.p1 = 2; | |
829 | clock.p2 = 10; | |
830 | clock.m1 = 12; | |
831 | clock.m2 = 9; | |
832 | } else { | |
833 | clock.n = 2; | |
834 | clock.p1 = 1; | |
835 | clock.p2 = 10; | |
836 | clock.m1 = 14; | |
837 | clock.m2 = 8; | |
838 | } | |
839 | intel_clock(dev, refclk, &clock); | |
840 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
841 | return true; | |
842 | } | |
843 | ||
a4fc5ed6 KP |
844 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
845 | static bool | |
846 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
847 | int target, int refclk, intel_clock_t *match_clock, |
848 | intel_clock_t *best_clock) | |
a4fc5ed6 | 849 | { |
5eddb70b CW |
850 | intel_clock_t clock; |
851 | if (target < 200000) { | |
852 | clock.p1 = 2; | |
853 | clock.p2 = 10; | |
854 | clock.n = 2; | |
855 | clock.m1 = 23; | |
856 | clock.m2 = 8; | |
857 | } else { | |
858 | clock.p1 = 1; | |
859 | clock.p2 = 10; | |
860 | clock.n = 1; | |
861 | clock.m1 = 14; | |
862 | clock.m2 = 2; | |
863 | } | |
864 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); | |
865 | clock.p = (clock.p1 * clock.p2); | |
866 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; | |
867 | clock.vco = 0; | |
868 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
869 | return true; | |
a4fc5ed6 | 870 | } |
a0c4da24 JB |
871 | static bool |
872 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
873 | int target, int refclk, intel_clock_t *match_clock, | |
874 | intel_clock_t *best_clock) | |
875 | { | |
876 | u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2; | |
877 | u32 m, n, fastclk; | |
878 | u32 updrate, minupdate, fracbits, p; | |
879 | unsigned long bestppm, ppm, absppm; | |
880 | int dotclk, flag; | |
881 | ||
af447bd3 | 882 | flag = 0; |
a0c4da24 JB |
883 | dotclk = target * 1000; |
884 | bestppm = 1000000; | |
885 | ppm = absppm = 0; | |
886 | fastclk = dotclk / (2*100); | |
887 | updrate = 0; | |
888 | minupdate = 19200; | |
889 | fracbits = 1; | |
890 | n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0; | |
891 | bestm1 = bestm2 = bestp1 = bestp2 = 0; | |
892 | ||
893 | /* based on hardware requirement, prefer smaller n to precision */ | |
894 | for (n = limit->n.min; n <= ((refclk) / minupdate); n++) { | |
895 | updrate = refclk / n; | |
896 | for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) { | |
897 | for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) { | |
898 | if (p2 > 10) | |
899 | p2 = p2 - 1; | |
900 | p = p1 * p2; | |
901 | /* based on hardware requirement, prefer bigger m1,m2 values */ | |
902 | for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) { | |
903 | m2 = (((2*(fastclk * p * n / m1 )) + | |
904 | refclk) / (2*refclk)); | |
905 | m = m1 * m2; | |
906 | vco = updrate * m; | |
907 | if (vco >= limit->vco.min && vco < limit->vco.max) { | |
908 | ppm = 1000000 * ((vco / p) - fastclk) / fastclk; | |
909 | absppm = (ppm > 0) ? ppm : (-ppm); | |
910 | if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) { | |
911 | bestppm = 0; | |
912 | flag = 1; | |
913 | } | |
914 | if (absppm < bestppm - 10) { | |
915 | bestppm = absppm; | |
916 | flag = 1; | |
917 | } | |
918 | if (flag) { | |
919 | bestn = n; | |
920 | bestm1 = m1; | |
921 | bestm2 = m2; | |
922 | bestp1 = p1; | |
923 | bestp2 = p2; | |
924 | flag = 0; | |
925 | } | |
926 | } | |
927 | } | |
928 | } | |
929 | } | |
930 | } | |
931 | best_clock->n = bestn; | |
932 | best_clock->m1 = bestm1; | |
933 | best_clock->m2 = bestm2; | |
934 | best_clock->p1 = bestp1; | |
935 | best_clock->p2 = bestp2; | |
936 | ||
937 | return true; | |
938 | } | |
a4fc5ed6 | 939 | |
a928d536 PZ |
940 | static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe) |
941 | { | |
942 | struct drm_i915_private *dev_priv = dev->dev_private; | |
943 | u32 frame, frame_reg = PIPEFRAME(pipe); | |
944 | ||
945 | frame = I915_READ(frame_reg); | |
946 | ||
947 | if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50)) | |
948 | DRM_DEBUG_KMS("vblank wait timed out\n"); | |
949 | } | |
950 | ||
9d0498a2 JB |
951 | /** |
952 | * intel_wait_for_vblank - wait for vblank on a given pipe | |
953 | * @dev: drm device | |
954 | * @pipe: pipe to wait for | |
955 | * | |
956 | * Wait for vblank to occur on a given pipe. Needed for various bits of | |
957 | * mode setting code. | |
958 | */ | |
959 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) | |
79e53945 | 960 | { |
9d0498a2 | 961 | struct drm_i915_private *dev_priv = dev->dev_private; |
9db4a9c7 | 962 | int pipestat_reg = PIPESTAT(pipe); |
9d0498a2 | 963 | |
a928d536 PZ |
964 | if (INTEL_INFO(dev)->gen >= 5) { |
965 | ironlake_wait_for_vblank(dev, pipe); | |
966 | return; | |
967 | } | |
968 | ||
300387c0 CW |
969 | /* Clear existing vblank status. Note this will clear any other |
970 | * sticky status fields as well. | |
971 | * | |
972 | * This races with i915_driver_irq_handler() with the result | |
973 | * that either function could miss a vblank event. Here it is not | |
974 | * fatal, as we will either wait upon the next vblank interrupt or | |
975 | * timeout. Generally speaking intel_wait_for_vblank() is only | |
976 | * called during modeset at which time the GPU should be idle and | |
977 | * should *not* be performing page flips and thus not waiting on | |
978 | * vblanks... | |
979 | * Currently, the result of us stealing a vblank from the irq | |
980 | * handler is that a single frame will be skipped during swapbuffers. | |
981 | */ | |
982 | I915_WRITE(pipestat_reg, | |
983 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); | |
984 | ||
9d0498a2 | 985 | /* Wait for vblank interrupt bit to set */ |
481b6af3 CW |
986 | if (wait_for(I915_READ(pipestat_reg) & |
987 | PIPE_VBLANK_INTERRUPT_STATUS, | |
988 | 50)) | |
9d0498a2 JB |
989 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
990 | } | |
991 | ||
ab7ad7f6 KP |
992 | /* |
993 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
9d0498a2 JB |
994 | * @dev: drm device |
995 | * @pipe: pipe to wait for | |
996 | * | |
997 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
998 | * spinning on the vblank interrupt status bit, since we won't actually | |
999 | * see an interrupt when the pipe is disabled. | |
1000 | * | |
ab7ad7f6 KP |
1001 | * On Gen4 and above: |
1002 | * wait for the pipe register state bit to turn off | |
1003 | * | |
1004 | * Otherwise: | |
1005 | * wait for the display line value to settle (it usually | |
1006 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 1007 | * |
9d0498a2 | 1008 | */ |
58e10eb9 | 1009 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
9d0498a2 JB |
1010 | { |
1011 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ab7ad7f6 KP |
1012 | |
1013 | if (INTEL_INFO(dev)->gen >= 4) { | |
58e10eb9 | 1014 | int reg = PIPECONF(pipe); |
ab7ad7f6 KP |
1015 | |
1016 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
1017 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
1018 | 100)) | |
284637d9 | 1019 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1020 | } else { |
837ba00f | 1021 | u32 last_line, line_mask; |
58e10eb9 | 1022 | int reg = PIPEDSL(pipe); |
ab7ad7f6 KP |
1023 | unsigned long timeout = jiffies + msecs_to_jiffies(100); |
1024 | ||
837ba00f PZ |
1025 | if (IS_GEN2(dev)) |
1026 | line_mask = DSL_LINEMASK_GEN2; | |
1027 | else | |
1028 | line_mask = DSL_LINEMASK_GEN3; | |
1029 | ||
ab7ad7f6 KP |
1030 | /* Wait for the display line to settle */ |
1031 | do { | |
837ba00f | 1032 | last_line = I915_READ(reg) & line_mask; |
ab7ad7f6 | 1033 | mdelay(5); |
837ba00f | 1034 | } while (((I915_READ(reg) & line_mask) != last_line) && |
ab7ad7f6 KP |
1035 | time_after(timeout, jiffies)); |
1036 | if (time_after(jiffies, timeout)) | |
284637d9 | 1037 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1038 | } |
79e53945 JB |
1039 | } |
1040 | ||
b24e7179 JB |
1041 | static const char *state_string(bool enabled) |
1042 | { | |
1043 | return enabled ? "on" : "off"; | |
1044 | } | |
1045 | ||
1046 | /* Only for pre-ILK configs */ | |
1047 | static void assert_pll(struct drm_i915_private *dev_priv, | |
1048 | enum pipe pipe, bool state) | |
1049 | { | |
1050 | int reg; | |
1051 | u32 val; | |
1052 | bool cur_state; | |
1053 | ||
1054 | reg = DPLL(pipe); | |
1055 | val = I915_READ(reg); | |
1056 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1057 | WARN(cur_state != state, | |
1058 | "PLL state assertion failure (expected %s, current %s)\n", | |
1059 | state_string(state), state_string(cur_state)); | |
1060 | } | |
1061 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) | |
1062 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) | |
1063 | ||
040484af JB |
1064 | /* For ILK+ */ |
1065 | static void assert_pch_pll(struct drm_i915_private *dev_priv, | |
92b27b08 CW |
1066 | struct intel_pch_pll *pll, |
1067 | struct intel_crtc *crtc, | |
1068 | bool state) | |
040484af | 1069 | { |
040484af JB |
1070 | u32 val; |
1071 | bool cur_state; | |
1072 | ||
9d82aa17 ED |
1073 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1074 | DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n"); | |
1075 | return; | |
1076 | } | |
1077 | ||
92b27b08 CW |
1078 | if (WARN (!pll, |
1079 | "asserting PCH PLL %s with no PLL\n", state_string(state))) | |
ee7b9f93 | 1080 | return; |
ee7b9f93 | 1081 | |
92b27b08 CW |
1082 | val = I915_READ(pll->pll_reg); |
1083 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1084 | WARN(cur_state != state, | |
1085 | "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n", | |
1086 | pll->pll_reg, state_string(state), state_string(cur_state), val); | |
1087 | ||
1088 | /* Make sure the selected PLL is correctly attached to the transcoder */ | |
1089 | if (crtc && HAS_PCH_CPT(dev_priv->dev)) { | |
d3ccbe86 JB |
1090 | u32 pch_dpll; |
1091 | ||
1092 | pch_dpll = I915_READ(PCH_DPLL_SEL); | |
92b27b08 CW |
1093 | cur_state = pll->pll_reg == _PCH_DPLL_B; |
1094 | if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state, | |
1095 | "PLL[%d] not attached to this transcoder %d: %08x\n", | |
1096 | cur_state, crtc->pipe, pch_dpll)) { | |
1097 | cur_state = !!(val >> (4*crtc->pipe + 3)); | |
1098 | WARN(cur_state != state, | |
1099 | "PLL[%d] not %s on this transcoder %d: %08x\n", | |
1100 | pll->pll_reg == _PCH_DPLL_B, | |
1101 | state_string(state), | |
1102 | crtc->pipe, | |
1103 | val); | |
1104 | } | |
d3ccbe86 | 1105 | } |
040484af | 1106 | } |
92b27b08 CW |
1107 | #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true) |
1108 | #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false) | |
040484af JB |
1109 | |
1110 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
1111 | enum pipe pipe, bool state) | |
1112 | { | |
1113 | int reg; | |
1114 | u32 val; | |
1115 | bool cur_state; | |
1116 | ||
bf507ef7 ED |
1117 | if (IS_HASWELL(dev_priv->dev)) { |
1118 | /* On Haswell, DDI is used instead of FDI_TX_CTL */ | |
1119 | reg = DDI_FUNC_CTL(pipe); | |
1120 | val = I915_READ(reg); | |
1121 | cur_state = !!(val & PIPE_DDI_FUNC_ENABLE); | |
1122 | } else { | |
1123 | reg = FDI_TX_CTL(pipe); | |
1124 | val = I915_READ(reg); | |
1125 | cur_state = !!(val & FDI_TX_ENABLE); | |
1126 | } | |
040484af JB |
1127 | WARN(cur_state != state, |
1128 | "FDI TX state assertion failure (expected %s, current %s)\n", | |
1129 | state_string(state), state_string(cur_state)); | |
1130 | } | |
1131 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
1132 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
1133 | ||
1134 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
1135 | enum pipe pipe, bool state) | |
1136 | { | |
1137 | int reg; | |
1138 | u32 val; | |
1139 | bool cur_state; | |
1140 | ||
59c859d6 ED |
1141 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1142 | DRM_ERROR("Attempting to enable FDI_RX on Haswell pipe > 0\n"); | |
1143 | return; | |
1144 | } else { | |
1145 | reg = FDI_RX_CTL(pipe); | |
1146 | val = I915_READ(reg); | |
1147 | cur_state = !!(val & FDI_RX_ENABLE); | |
1148 | } | |
040484af JB |
1149 | WARN(cur_state != state, |
1150 | "FDI RX state assertion failure (expected %s, current %s)\n", | |
1151 | state_string(state), state_string(cur_state)); | |
1152 | } | |
1153 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
1154 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1155 | ||
1156 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1157 | enum pipe pipe) | |
1158 | { | |
1159 | int reg; | |
1160 | u32 val; | |
1161 | ||
1162 | /* ILK FDI PLL is always enabled */ | |
1163 | if (dev_priv->info->gen == 5) | |
1164 | return; | |
1165 | ||
bf507ef7 ED |
1166 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
1167 | if (IS_HASWELL(dev_priv->dev)) | |
1168 | return; | |
1169 | ||
040484af JB |
1170 | reg = FDI_TX_CTL(pipe); |
1171 | val = I915_READ(reg); | |
1172 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); | |
1173 | } | |
1174 | ||
1175 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, | |
1176 | enum pipe pipe) | |
1177 | { | |
1178 | int reg; | |
1179 | u32 val; | |
1180 | ||
59c859d6 ED |
1181 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1182 | DRM_ERROR("Attempting to enable FDI on Haswell with pipe > 0\n"); | |
1183 | return; | |
1184 | } | |
040484af JB |
1185 | reg = FDI_RX_CTL(pipe); |
1186 | val = I915_READ(reg); | |
1187 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); | |
1188 | } | |
1189 | ||
ea0760cf JB |
1190 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1191 | enum pipe pipe) | |
1192 | { | |
1193 | int pp_reg, lvds_reg; | |
1194 | u32 val; | |
1195 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1196 | bool locked = true; |
ea0760cf JB |
1197 | |
1198 | if (HAS_PCH_SPLIT(dev_priv->dev)) { | |
1199 | pp_reg = PCH_PP_CONTROL; | |
1200 | lvds_reg = PCH_LVDS; | |
1201 | } else { | |
1202 | pp_reg = PP_CONTROL; | |
1203 | lvds_reg = LVDS; | |
1204 | } | |
1205 | ||
1206 | val = I915_READ(pp_reg); | |
1207 | if (!(val & PANEL_POWER_ON) || | |
1208 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) | |
1209 | locked = false; | |
1210 | ||
1211 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) | |
1212 | panel_pipe = PIPE_B; | |
1213 | ||
1214 | WARN(panel_pipe == pipe && locked, | |
1215 | "panel assertion failure, pipe %c regs locked\n", | |
9db4a9c7 | 1216 | pipe_name(pipe)); |
ea0760cf JB |
1217 | } |
1218 | ||
b840d907 JB |
1219 | void assert_pipe(struct drm_i915_private *dev_priv, |
1220 | enum pipe pipe, bool state) | |
b24e7179 JB |
1221 | { |
1222 | int reg; | |
1223 | u32 val; | |
63d7bbe9 | 1224 | bool cur_state; |
b24e7179 | 1225 | |
8e636784 DV |
1226 | /* if we need the pipe A quirk it must be always on */ |
1227 | if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) | |
1228 | state = true; | |
1229 | ||
b24e7179 JB |
1230 | reg = PIPECONF(pipe); |
1231 | val = I915_READ(reg); | |
63d7bbe9 JB |
1232 | cur_state = !!(val & PIPECONF_ENABLE); |
1233 | WARN(cur_state != state, | |
1234 | "pipe %c assertion failure (expected %s, current %s)\n", | |
9db4a9c7 | 1235 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1236 | } |
1237 | ||
931872fc CW |
1238 | static void assert_plane(struct drm_i915_private *dev_priv, |
1239 | enum plane plane, bool state) | |
b24e7179 JB |
1240 | { |
1241 | int reg; | |
1242 | u32 val; | |
931872fc | 1243 | bool cur_state; |
b24e7179 JB |
1244 | |
1245 | reg = DSPCNTR(plane); | |
1246 | val = I915_READ(reg); | |
931872fc CW |
1247 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
1248 | WARN(cur_state != state, | |
1249 | "plane %c assertion failure (expected %s, current %s)\n", | |
1250 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1251 | } |
1252 | ||
931872fc CW |
1253 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1254 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1255 | ||
b24e7179 JB |
1256 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1257 | enum pipe pipe) | |
1258 | { | |
1259 | int reg, i; | |
1260 | u32 val; | |
1261 | int cur_pipe; | |
1262 | ||
19ec1358 | 1263 | /* Planes are fixed to pipes on ILK+ */ |
28c05794 AJ |
1264 | if (HAS_PCH_SPLIT(dev_priv->dev)) { |
1265 | reg = DSPCNTR(pipe); | |
1266 | val = I915_READ(reg); | |
1267 | WARN((val & DISPLAY_PLANE_ENABLE), | |
1268 | "plane %c assertion failure, should be disabled but not\n", | |
1269 | plane_name(pipe)); | |
19ec1358 | 1270 | return; |
28c05794 | 1271 | } |
19ec1358 | 1272 | |
b24e7179 JB |
1273 | /* Need to check both planes against the pipe */ |
1274 | for (i = 0; i < 2; i++) { | |
1275 | reg = DSPCNTR(i); | |
1276 | val = I915_READ(reg); | |
1277 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1278 | DISPPLANE_SEL_PIPE_SHIFT; | |
1279 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, | |
9db4a9c7 JB |
1280 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1281 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1282 | } |
1283 | } | |
1284 | ||
92f2584a JB |
1285 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
1286 | { | |
1287 | u32 val; | |
1288 | bool enabled; | |
1289 | ||
9d82aa17 ED |
1290 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1291 | DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n"); | |
1292 | return; | |
1293 | } | |
1294 | ||
92f2584a JB |
1295 | val = I915_READ(PCH_DREF_CONTROL); |
1296 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1297 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
1298 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); | |
1299 | } | |
1300 | ||
1301 | static void assert_transcoder_disabled(struct drm_i915_private *dev_priv, | |
1302 | enum pipe pipe) | |
1303 | { | |
1304 | int reg; | |
1305 | u32 val; | |
1306 | bool enabled; | |
1307 | ||
1308 | reg = TRANSCONF(pipe); | |
1309 | val = I915_READ(reg); | |
1310 | enabled = !!(val & TRANS_ENABLE); | |
9db4a9c7 JB |
1311 | WARN(enabled, |
1312 | "transcoder assertion failed, should be off on pipe %c but is still active\n", | |
1313 | pipe_name(pipe)); | |
92f2584a JB |
1314 | } |
1315 | ||
4e634389 KP |
1316 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1317 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1318 | { |
1319 | if ((val & DP_PORT_EN) == 0) | |
1320 | return false; | |
1321 | ||
1322 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1323 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); | |
1324 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); | |
1325 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) | |
1326 | return false; | |
1327 | } else { | |
1328 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1329 | return false; | |
1330 | } | |
1331 | return true; | |
1332 | } | |
1333 | ||
1519b995 KP |
1334 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1335 | enum pipe pipe, u32 val) | |
1336 | { | |
1337 | if ((val & PORT_ENABLE) == 0) | |
1338 | return false; | |
1339 | ||
1340 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1341 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1342 | return false; | |
1343 | } else { | |
1344 | if ((val & TRANSCODER_MASK) != TRANSCODER(pipe)) | |
1345 | return false; | |
1346 | } | |
1347 | return true; | |
1348 | } | |
1349 | ||
1350 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1351 | enum pipe pipe, u32 val) | |
1352 | { | |
1353 | if ((val & LVDS_PORT_EN) == 0) | |
1354 | return false; | |
1355 | ||
1356 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1357 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1358 | return false; | |
1359 | } else { | |
1360 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1361 | return false; | |
1362 | } | |
1363 | return true; | |
1364 | } | |
1365 | ||
1366 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1367 | enum pipe pipe, u32 val) | |
1368 | { | |
1369 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1370 | return false; | |
1371 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1372 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1373 | return false; | |
1374 | } else { | |
1375 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1376 | return false; | |
1377 | } | |
1378 | return true; | |
1379 | } | |
1380 | ||
291906f1 | 1381 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0575e92 | 1382 | enum pipe pipe, int reg, u32 port_sel) |
291906f1 | 1383 | { |
47a05eca | 1384 | u32 val = I915_READ(reg); |
4e634389 | 1385 | WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1386 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1387 | reg, pipe_name(pipe)); |
de9a35ab | 1388 | |
75c5da27 DV |
1389 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 |
1390 | && (val & DP_PIPEB_SELECT), | |
de9a35ab | 1391 | "IBX PCH dp port still using transcoder B\n"); |
291906f1 JB |
1392 | } |
1393 | ||
1394 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1395 | enum pipe pipe, int reg) | |
1396 | { | |
47a05eca | 1397 | u32 val = I915_READ(reg); |
e9a851ed | 1398 | WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1399 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1400 | reg, pipe_name(pipe)); |
de9a35ab | 1401 | |
75c5da27 DV |
1402 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & PORT_ENABLE) == 0 |
1403 | && (val & SDVO_PIPE_B_SELECT), | |
de9a35ab | 1404 | "IBX PCH hdmi port still using transcoder B\n"); |
291906f1 JB |
1405 | } |
1406 | ||
1407 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1408 | enum pipe pipe) | |
1409 | { | |
1410 | int reg; | |
1411 | u32 val; | |
291906f1 | 1412 | |
f0575e92 KP |
1413 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1414 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1415 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1416 | |
1417 | reg = PCH_ADPA; | |
1418 | val = I915_READ(reg); | |
e9a851ed | 1419 | WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1420 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1421 | pipe_name(pipe)); |
291906f1 JB |
1422 | |
1423 | reg = PCH_LVDS; | |
1424 | val = I915_READ(reg); | |
e9a851ed | 1425 | WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1426 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1427 | pipe_name(pipe)); |
291906f1 JB |
1428 | |
1429 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB); | |
1430 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC); | |
1431 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMID); | |
1432 | } | |
1433 | ||
63d7bbe9 JB |
1434 | /** |
1435 | * intel_enable_pll - enable a PLL | |
1436 | * @dev_priv: i915 private structure | |
1437 | * @pipe: pipe PLL to enable | |
1438 | * | |
1439 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to | |
1440 | * make sure the PLL reg is writable first though, since the panel write | |
1441 | * protect mechanism may be enabled. | |
1442 | * | |
1443 | * Note! This is for pre-ILK only. | |
7434a255 TR |
1444 | * |
1445 | * Unfortunately needed by dvo_ns2501 since the dvo depends on it running. | |
63d7bbe9 | 1446 | */ |
a37b9b34 | 1447 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
63d7bbe9 JB |
1448 | { |
1449 | int reg; | |
1450 | u32 val; | |
1451 | ||
1452 | /* No really, not for ILK+ */ | |
a0c4da24 | 1453 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5); |
63d7bbe9 JB |
1454 | |
1455 | /* PLL is protected by panel, make sure we can write it */ | |
1456 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) | |
1457 | assert_panel_unlocked(dev_priv, pipe); | |
1458 | ||
1459 | reg = DPLL(pipe); | |
1460 | val = I915_READ(reg); | |
1461 | val |= DPLL_VCO_ENABLE; | |
1462 | ||
1463 | /* We do this three times for luck */ | |
1464 | I915_WRITE(reg, val); | |
1465 | POSTING_READ(reg); | |
1466 | udelay(150); /* wait for warmup */ | |
1467 | I915_WRITE(reg, val); | |
1468 | POSTING_READ(reg); | |
1469 | udelay(150); /* wait for warmup */ | |
1470 | I915_WRITE(reg, val); | |
1471 | POSTING_READ(reg); | |
1472 | udelay(150); /* wait for warmup */ | |
1473 | } | |
1474 | ||
1475 | /** | |
1476 | * intel_disable_pll - disable a PLL | |
1477 | * @dev_priv: i915 private structure | |
1478 | * @pipe: pipe PLL to disable | |
1479 | * | |
1480 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1481 | * | |
1482 | * Note! This is for pre-ILK only. | |
1483 | */ | |
1484 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1485 | { | |
1486 | int reg; | |
1487 | u32 val; | |
1488 | ||
1489 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1490 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1491 | return; | |
1492 | ||
1493 | /* Make sure the pipe isn't still relying on us */ | |
1494 | assert_pipe_disabled(dev_priv, pipe); | |
1495 | ||
1496 | reg = DPLL(pipe); | |
1497 | val = I915_READ(reg); | |
1498 | val &= ~DPLL_VCO_ENABLE; | |
1499 | I915_WRITE(reg, val); | |
1500 | POSTING_READ(reg); | |
1501 | } | |
1502 | ||
a416edef ED |
1503 | /* SBI access */ |
1504 | static void | |
1505 | intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value) | |
1506 | { | |
1507 | unsigned long flags; | |
1508 | ||
1509 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
39fb50f6 | 1510 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
a416edef ED |
1511 | 100)) { |
1512 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1513 | goto out_unlock; | |
1514 | } | |
1515 | ||
1516 | I915_WRITE(SBI_ADDR, | |
1517 | (reg << 16)); | |
1518 | I915_WRITE(SBI_DATA, | |
1519 | value); | |
1520 | I915_WRITE(SBI_CTL_STAT, | |
1521 | SBI_BUSY | | |
1522 | SBI_CTL_OP_CRWR); | |
1523 | ||
39fb50f6 | 1524 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
a416edef ED |
1525 | 100)) { |
1526 | DRM_ERROR("timeout waiting for SBI to complete write transaction\n"); | |
1527 | goto out_unlock; | |
1528 | } | |
1529 | ||
1530 | out_unlock: | |
1531 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1532 | } | |
1533 | ||
1534 | static u32 | |
1535 | intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg) | |
1536 | { | |
1537 | unsigned long flags; | |
39fb50f6 | 1538 | u32 value = 0; |
a416edef ED |
1539 | |
1540 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
39fb50f6 | 1541 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
a416edef ED |
1542 | 100)) { |
1543 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1544 | goto out_unlock; | |
1545 | } | |
1546 | ||
1547 | I915_WRITE(SBI_ADDR, | |
1548 | (reg << 16)); | |
1549 | I915_WRITE(SBI_CTL_STAT, | |
1550 | SBI_BUSY | | |
1551 | SBI_CTL_OP_CRRD); | |
1552 | ||
39fb50f6 | 1553 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
a416edef ED |
1554 | 100)) { |
1555 | DRM_ERROR("timeout waiting for SBI to complete read transaction\n"); | |
1556 | goto out_unlock; | |
1557 | } | |
1558 | ||
1559 | value = I915_READ(SBI_DATA); | |
1560 | ||
1561 | out_unlock: | |
1562 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1563 | return value; | |
1564 | } | |
1565 | ||
92f2584a JB |
1566 | /** |
1567 | * intel_enable_pch_pll - enable PCH PLL | |
1568 | * @dev_priv: i915 private structure | |
1569 | * @pipe: pipe PLL to enable | |
1570 | * | |
1571 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1572 | * drives the transcoder clock. | |
1573 | */ | |
ee7b9f93 | 1574 | static void intel_enable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1575 | { |
ee7b9f93 | 1576 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
48da64a8 | 1577 | struct intel_pch_pll *pll; |
92f2584a JB |
1578 | int reg; |
1579 | u32 val; | |
1580 | ||
48da64a8 | 1581 | /* PCH PLLs only available on ILK, SNB and IVB */ |
92f2584a | 1582 | BUG_ON(dev_priv->info->gen < 5); |
48da64a8 CW |
1583 | pll = intel_crtc->pch_pll; |
1584 | if (pll == NULL) | |
1585 | return; | |
1586 | ||
1587 | if (WARN_ON(pll->refcount == 0)) | |
1588 | return; | |
ee7b9f93 JB |
1589 | |
1590 | DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n", | |
1591 | pll->pll_reg, pll->active, pll->on, | |
1592 | intel_crtc->base.base.id); | |
92f2584a JB |
1593 | |
1594 | /* PCH refclock must be enabled first */ | |
1595 | assert_pch_refclk_enabled(dev_priv); | |
1596 | ||
ee7b9f93 | 1597 | if (pll->active++ && pll->on) { |
92b27b08 | 1598 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
ee7b9f93 JB |
1599 | return; |
1600 | } | |
1601 | ||
1602 | DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg); | |
1603 | ||
1604 | reg = pll->pll_reg; | |
92f2584a JB |
1605 | val = I915_READ(reg); |
1606 | val |= DPLL_VCO_ENABLE; | |
1607 | I915_WRITE(reg, val); | |
1608 | POSTING_READ(reg); | |
1609 | udelay(200); | |
ee7b9f93 JB |
1610 | |
1611 | pll->on = true; | |
92f2584a JB |
1612 | } |
1613 | ||
ee7b9f93 | 1614 | static void intel_disable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1615 | { |
ee7b9f93 JB |
1616 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
1617 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
92f2584a | 1618 | int reg; |
ee7b9f93 | 1619 | u32 val; |
4c609cb8 | 1620 | |
92f2584a JB |
1621 | /* PCH only available on ILK+ */ |
1622 | BUG_ON(dev_priv->info->gen < 5); | |
ee7b9f93 JB |
1623 | if (pll == NULL) |
1624 | return; | |
92f2584a | 1625 | |
48da64a8 CW |
1626 | if (WARN_ON(pll->refcount == 0)) |
1627 | return; | |
7a419866 | 1628 | |
ee7b9f93 JB |
1629 | DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n", |
1630 | pll->pll_reg, pll->active, pll->on, | |
1631 | intel_crtc->base.base.id); | |
7a419866 | 1632 | |
48da64a8 | 1633 | if (WARN_ON(pll->active == 0)) { |
92b27b08 | 1634 | assert_pch_pll_disabled(dev_priv, pll, NULL); |
48da64a8 CW |
1635 | return; |
1636 | } | |
1637 | ||
ee7b9f93 | 1638 | if (--pll->active) { |
92b27b08 | 1639 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
7a419866 | 1640 | return; |
ee7b9f93 JB |
1641 | } |
1642 | ||
1643 | DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg); | |
1644 | ||
1645 | /* Make sure transcoder isn't still depending on us */ | |
1646 | assert_transcoder_disabled(dev_priv, intel_crtc->pipe); | |
7a419866 | 1647 | |
ee7b9f93 | 1648 | reg = pll->pll_reg; |
92f2584a JB |
1649 | val = I915_READ(reg); |
1650 | val &= ~DPLL_VCO_ENABLE; | |
1651 | I915_WRITE(reg, val); | |
1652 | POSTING_READ(reg); | |
1653 | udelay(200); | |
ee7b9f93 JB |
1654 | |
1655 | pll->on = false; | |
92f2584a JB |
1656 | } |
1657 | ||
040484af JB |
1658 | static void intel_enable_transcoder(struct drm_i915_private *dev_priv, |
1659 | enum pipe pipe) | |
1660 | { | |
1661 | int reg; | |
5f7f726d | 1662 | u32 val, pipeconf_val; |
7c26e5c6 | 1663 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
040484af JB |
1664 | |
1665 | /* PCH only available on ILK+ */ | |
1666 | BUG_ON(dev_priv->info->gen < 5); | |
1667 | ||
1668 | /* Make sure PCH DPLL is enabled */ | |
92b27b08 CW |
1669 | assert_pch_pll_enabled(dev_priv, |
1670 | to_intel_crtc(crtc)->pch_pll, | |
1671 | to_intel_crtc(crtc)); | |
040484af JB |
1672 | |
1673 | /* FDI must be feeding us bits for PCH ports */ | |
1674 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1675 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1676 | ||
59c859d6 ED |
1677 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1678 | DRM_ERROR("Attempting to enable transcoder on Haswell with pipe > 0\n"); | |
1679 | return; | |
1680 | } | |
040484af JB |
1681 | reg = TRANSCONF(pipe); |
1682 | val = I915_READ(reg); | |
5f7f726d | 1683 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1684 | |
1685 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1686 | /* | |
1687 | * make the BPC in transcoder be consistent with | |
1688 | * that in pipeconf reg. | |
1689 | */ | |
1690 | val &= ~PIPE_BPC_MASK; | |
5f7f726d | 1691 | val |= pipeconf_val & PIPE_BPC_MASK; |
e9bcff5c | 1692 | } |
5f7f726d PZ |
1693 | |
1694 | val &= ~TRANS_INTERLACE_MASK; | |
1695 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 PZ |
1696 | if (HAS_PCH_IBX(dev_priv->dev) && |
1697 | intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) | |
1698 | val |= TRANS_LEGACY_INTERLACED_ILK; | |
1699 | else | |
1700 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1701 | else |
1702 | val |= TRANS_PROGRESSIVE; | |
1703 | ||
040484af JB |
1704 | I915_WRITE(reg, val | TRANS_ENABLE); |
1705 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
1706 | DRM_ERROR("failed to enable transcoder %d\n", pipe); | |
1707 | } | |
1708 | ||
1709 | static void intel_disable_transcoder(struct drm_i915_private *dev_priv, | |
1710 | enum pipe pipe) | |
1711 | { | |
1712 | int reg; | |
1713 | u32 val; | |
1714 | ||
1715 | /* FDI relies on the transcoder */ | |
1716 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1717 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1718 | ||
291906f1 JB |
1719 | /* Ports must be off as well */ |
1720 | assert_pch_ports_disabled(dev_priv, pipe); | |
1721 | ||
040484af JB |
1722 | reg = TRANSCONF(pipe); |
1723 | val = I915_READ(reg); | |
1724 | val &= ~TRANS_ENABLE; | |
1725 | I915_WRITE(reg, val); | |
1726 | /* wait for PCH transcoder off, transcoder state */ | |
1727 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4c9c18c2 | 1728 | DRM_ERROR("failed to disable transcoder %d\n", pipe); |
040484af JB |
1729 | } |
1730 | ||
b24e7179 | 1731 | /** |
309cfea8 | 1732 | * intel_enable_pipe - enable a pipe, asserting requirements |
b24e7179 JB |
1733 | * @dev_priv: i915 private structure |
1734 | * @pipe: pipe to enable | |
040484af | 1735 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
b24e7179 JB |
1736 | * |
1737 | * Enable @pipe, making sure that various hardware specific requirements | |
1738 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. | |
1739 | * | |
1740 | * @pipe should be %PIPE_A or %PIPE_B. | |
1741 | * | |
1742 | * Will wait until the pipe is actually running (i.e. first vblank) before | |
1743 | * returning. | |
1744 | */ | |
040484af JB |
1745 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
1746 | bool pch_port) | |
b24e7179 JB |
1747 | { |
1748 | int reg; | |
1749 | u32 val; | |
1750 | ||
1751 | /* | |
1752 | * A pipe without a PLL won't actually be able to drive bits from | |
1753 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
1754 | * need the check. | |
1755 | */ | |
1756 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
1757 | assert_pll_enabled(dev_priv, pipe); | |
040484af JB |
1758 | else { |
1759 | if (pch_port) { | |
1760 | /* if driving the PCH, we need FDI enabled */ | |
1761 | assert_fdi_rx_pll_enabled(dev_priv, pipe); | |
1762 | assert_fdi_tx_pll_enabled(dev_priv, pipe); | |
1763 | } | |
1764 | /* FIXME: assert CPU port conditions for SNB+ */ | |
1765 | } | |
b24e7179 JB |
1766 | |
1767 | reg = PIPECONF(pipe); | |
1768 | val = I915_READ(reg); | |
00d70b15 CW |
1769 | if (val & PIPECONF_ENABLE) |
1770 | return; | |
1771 | ||
1772 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
b24e7179 JB |
1773 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1774 | } | |
1775 | ||
1776 | /** | |
309cfea8 | 1777 | * intel_disable_pipe - disable a pipe, asserting requirements |
b24e7179 JB |
1778 | * @dev_priv: i915 private structure |
1779 | * @pipe: pipe to disable | |
1780 | * | |
1781 | * Disable @pipe, making sure that various hardware specific requirements | |
1782 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. | |
1783 | * | |
1784 | * @pipe should be %PIPE_A or %PIPE_B. | |
1785 | * | |
1786 | * Will wait until the pipe has shut down before returning. | |
1787 | */ | |
1788 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, | |
1789 | enum pipe pipe) | |
1790 | { | |
1791 | int reg; | |
1792 | u32 val; | |
1793 | ||
1794 | /* | |
1795 | * Make sure planes won't keep trying to pump pixels to us, | |
1796 | * or we might hang the display. | |
1797 | */ | |
1798 | assert_planes_disabled(dev_priv, pipe); | |
1799 | ||
1800 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1801 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1802 | return; | |
1803 | ||
1804 | reg = PIPECONF(pipe); | |
1805 | val = I915_READ(reg); | |
00d70b15 CW |
1806 | if ((val & PIPECONF_ENABLE) == 0) |
1807 | return; | |
1808 | ||
1809 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); | |
b24e7179 JB |
1810 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
1811 | } | |
1812 | ||
d74362c9 KP |
1813 | /* |
1814 | * Plane regs are double buffered, going from enabled->disabled needs a | |
1815 | * trigger in order to latch. The display address reg provides this. | |
1816 | */ | |
6f1d69b0 | 1817 | void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
d74362c9 KP |
1818 | enum plane plane) |
1819 | { | |
1820 | I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane))); | |
1821 | I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane))); | |
1822 | } | |
1823 | ||
b24e7179 JB |
1824 | /** |
1825 | * intel_enable_plane - enable a display plane on a given pipe | |
1826 | * @dev_priv: i915 private structure | |
1827 | * @plane: plane to enable | |
1828 | * @pipe: pipe being fed | |
1829 | * | |
1830 | * Enable @plane on @pipe, making sure that @pipe is running first. | |
1831 | */ | |
1832 | static void intel_enable_plane(struct drm_i915_private *dev_priv, | |
1833 | enum plane plane, enum pipe pipe) | |
1834 | { | |
1835 | int reg; | |
1836 | u32 val; | |
1837 | ||
1838 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
1839 | assert_pipe_enabled(dev_priv, pipe); | |
1840 | ||
1841 | reg = DSPCNTR(plane); | |
1842 | val = I915_READ(reg); | |
00d70b15 CW |
1843 | if (val & DISPLAY_PLANE_ENABLE) |
1844 | return; | |
1845 | ||
1846 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); | |
d74362c9 | 1847 | intel_flush_display_plane(dev_priv, plane); |
b24e7179 JB |
1848 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1849 | } | |
1850 | ||
b24e7179 JB |
1851 | /** |
1852 | * intel_disable_plane - disable a display plane | |
1853 | * @dev_priv: i915 private structure | |
1854 | * @plane: plane to disable | |
1855 | * @pipe: pipe consuming the data | |
1856 | * | |
1857 | * Disable @plane; should be an independent operation. | |
1858 | */ | |
1859 | static void intel_disable_plane(struct drm_i915_private *dev_priv, | |
1860 | enum plane plane, enum pipe pipe) | |
1861 | { | |
1862 | int reg; | |
1863 | u32 val; | |
1864 | ||
1865 | reg = DSPCNTR(plane); | |
1866 | val = I915_READ(reg); | |
00d70b15 CW |
1867 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
1868 | return; | |
1869 | ||
1870 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); | |
b24e7179 JB |
1871 | intel_flush_display_plane(dev_priv, plane); |
1872 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1873 | } | |
1874 | ||
127bd2ac | 1875 | int |
48b956c5 | 1876 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
05394f39 | 1877 | struct drm_i915_gem_object *obj, |
919926ae | 1878 | struct intel_ring_buffer *pipelined) |
6b95a207 | 1879 | { |
ce453d81 | 1880 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
1881 | u32 alignment; |
1882 | int ret; | |
1883 | ||
05394f39 | 1884 | switch (obj->tiling_mode) { |
6b95a207 | 1885 | case I915_TILING_NONE: |
534843da CW |
1886 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
1887 | alignment = 128 * 1024; | |
a6c45cf0 | 1888 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
1889 | alignment = 4 * 1024; |
1890 | else | |
1891 | alignment = 64 * 1024; | |
6b95a207 KH |
1892 | break; |
1893 | case I915_TILING_X: | |
1894 | /* pin() will align the object as required by fence */ | |
1895 | alignment = 0; | |
1896 | break; | |
1897 | case I915_TILING_Y: | |
1898 | /* FIXME: Is this true? */ | |
1899 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); | |
1900 | return -EINVAL; | |
1901 | default: | |
1902 | BUG(); | |
1903 | } | |
1904 | ||
ce453d81 | 1905 | dev_priv->mm.interruptible = false; |
2da3b9b9 | 1906 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
48b956c5 | 1907 | if (ret) |
ce453d81 | 1908 | goto err_interruptible; |
6b95a207 KH |
1909 | |
1910 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
1911 | * fence, whereas 965+ only requires a fence if using | |
1912 | * framebuffer compression. For simplicity, we always install | |
1913 | * a fence as the cost is not that onerous. | |
1914 | */ | |
06d98131 | 1915 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
1916 | if (ret) |
1917 | goto err_unpin; | |
1690e1eb | 1918 | |
9a5a53b3 | 1919 | i915_gem_object_pin_fence(obj); |
6b95a207 | 1920 | |
ce453d81 | 1921 | dev_priv->mm.interruptible = true; |
6b95a207 | 1922 | return 0; |
48b956c5 CW |
1923 | |
1924 | err_unpin: | |
1925 | i915_gem_object_unpin(obj); | |
ce453d81 CW |
1926 | err_interruptible: |
1927 | dev_priv->mm.interruptible = true; | |
48b956c5 | 1928 | return ret; |
6b95a207 KH |
1929 | } |
1930 | ||
1690e1eb CW |
1931 | void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
1932 | { | |
1933 | i915_gem_object_unpin_fence(obj); | |
1934 | i915_gem_object_unpin(obj); | |
1935 | } | |
1936 | ||
c2c75131 DV |
1937 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
1938 | * is assumed to be a power-of-two. */ | |
1939 | static unsigned long gen4_compute_dspaddr_offset_xtiled(int *x, int *y, | |
1940 | unsigned int bpp, | |
1941 | unsigned int pitch) | |
1942 | { | |
1943 | int tile_rows, tiles; | |
1944 | ||
1945 | tile_rows = *y / 8; | |
1946 | *y %= 8; | |
1947 | tiles = *x / (512/bpp); | |
1948 | *x %= 512/bpp; | |
1949 | ||
1950 | return tile_rows * pitch * 8 + tiles * 4096; | |
1951 | } | |
1952 | ||
17638cd6 JB |
1953 | static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
1954 | int x, int y) | |
81255565 JB |
1955 | { |
1956 | struct drm_device *dev = crtc->dev; | |
1957 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1958 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1959 | struct intel_framebuffer *intel_fb; | |
05394f39 | 1960 | struct drm_i915_gem_object *obj; |
81255565 | 1961 | int plane = intel_crtc->plane; |
e506a0c6 | 1962 | unsigned long linear_offset; |
81255565 | 1963 | u32 dspcntr; |
5eddb70b | 1964 | u32 reg; |
81255565 JB |
1965 | |
1966 | switch (plane) { | |
1967 | case 0: | |
1968 | case 1: | |
1969 | break; | |
1970 | default: | |
1971 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
1972 | return -EINVAL; | |
1973 | } | |
1974 | ||
1975 | intel_fb = to_intel_framebuffer(fb); | |
1976 | obj = intel_fb->obj; | |
81255565 | 1977 | |
5eddb70b CW |
1978 | reg = DSPCNTR(plane); |
1979 | dspcntr = I915_READ(reg); | |
81255565 JB |
1980 | /* Mask out pixel format bits in case we change it */ |
1981 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
1982 | switch (fb->bits_per_pixel) { | |
1983 | case 8: | |
1984 | dspcntr |= DISPPLANE_8BPP; | |
1985 | break; | |
1986 | case 16: | |
1987 | if (fb->depth == 15) | |
1988 | dspcntr |= DISPPLANE_15_16BPP; | |
1989 | else | |
1990 | dspcntr |= DISPPLANE_16BPP; | |
1991 | break; | |
1992 | case 24: | |
1993 | case 32: | |
1994 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
1995 | break; | |
1996 | default: | |
17638cd6 | 1997 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); |
81255565 JB |
1998 | return -EINVAL; |
1999 | } | |
a6c45cf0 | 2000 | if (INTEL_INFO(dev)->gen >= 4) { |
05394f39 | 2001 | if (obj->tiling_mode != I915_TILING_NONE) |
81255565 JB |
2002 | dspcntr |= DISPPLANE_TILED; |
2003 | else | |
2004 | dspcntr &= ~DISPPLANE_TILED; | |
2005 | } | |
2006 | ||
5eddb70b | 2007 | I915_WRITE(reg, dspcntr); |
81255565 | 2008 | |
e506a0c6 | 2009 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
81255565 | 2010 | |
c2c75131 DV |
2011 | if (INTEL_INFO(dev)->gen >= 4) { |
2012 | intel_crtc->dspaddr_offset = | |
2013 | gen4_compute_dspaddr_offset_xtiled(&x, &y, | |
2014 | fb->bits_per_pixel / 8, | |
2015 | fb->pitches[0]); | |
2016 | linear_offset -= intel_crtc->dspaddr_offset; | |
2017 | } else { | |
e506a0c6 | 2018 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 2019 | } |
e506a0c6 DV |
2020 | |
2021 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", | |
2022 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2023 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 2024 | if (INTEL_INFO(dev)->gen >= 4) { |
c2c75131 DV |
2025 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2026 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
5eddb70b | 2027 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2028 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 2029 | } else |
e506a0c6 | 2030 | I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset); |
5eddb70b | 2031 | POSTING_READ(reg); |
81255565 | 2032 | |
17638cd6 JB |
2033 | return 0; |
2034 | } | |
2035 | ||
2036 | static int ironlake_update_plane(struct drm_crtc *crtc, | |
2037 | struct drm_framebuffer *fb, int x, int y) | |
2038 | { | |
2039 | struct drm_device *dev = crtc->dev; | |
2040 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2041 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2042 | struct intel_framebuffer *intel_fb; | |
2043 | struct drm_i915_gem_object *obj; | |
2044 | int plane = intel_crtc->plane; | |
e506a0c6 | 2045 | unsigned long linear_offset; |
17638cd6 JB |
2046 | u32 dspcntr; |
2047 | u32 reg; | |
2048 | ||
2049 | switch (plane) { | |
2050 | case 0: | |
2051 | case 1: | |
27f8227b | 2052 | case 2: |
17638cd6 JB |
2053 | break; |
2054 | default: | |
2055 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
2056 | return -EINVAL; | |
2057 | } | |
2058 | ||
2059 | intel_fb = to_intel_framebuffer(fb); | |
2060 | obj = intel_fb->obj; | |
2061 | ||
2062 | reg = DSPCNTR(plane); | |
2063 | dspcntr = I915_READ(reg); | |
2064 | /* Mask out pixel format bits in case we change it */ | |
2065 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
2066 | switch (fb->bits_per_pixel) { | |
2067 | case 8: | |
2068 | dspcntr |= DISPPLANE_8BPP; | |
2069 | break; | |
2070 | case 16: | |
2071 | if (fb->depth != 16) | |
2072 | return -EINVAL; | |
2073 | ||
2074 | dspcntr |= DISPPLANE_16BPP; | |
2075 | break; | |
2076 | case 24: | |
2077 | case 32: | |
2078 | if (fb->depth == 24) | |
2079 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
2080 | else if (fb->depth == 30) | |
2081 | dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA; | |
2082 | else | |
2083 | return -EINVAL; | |
2084 | break; | |
2085 | default: | |
2086 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); | |
2087 | return -EINVAL; | |
2088 | } | |
2089 | ||
2090 | if (obj->tiling_mode != I915_TILING_NONE) | |
2091 | dspcntr |= DISPPLANE_TILED; | |
2092 | else | |
2093 | dspcntr &= ~DISPPLANE_TILED; | |
2094 | ||
2095 | /* must disable */ | |
2096 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2097 | ||
2098 | I915_WRITE(reg, dspcntr); | |
2099 | ||
e506a0c6 | 2100 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
c2c75131 DV |
2101 | intel_crtc->dspaddr_offset = |
2102 | gen4_compute_dspaddr_offset_xtiled(&x, &y, | |
2103 | fb->bits_per_pixel / 8, | |
2104 | fb->pitches[0]); | |
2105 | linear_offset -= intel_crtc->dspaddr_offset; | |
17638cd6 | 2106 | |
e506a0c6 DV |
2107 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", |
2108 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2109 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
c2c75131 DV |
2110 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2111 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
17638cd6 | 2112 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2113 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
17638cd6 JB |
2114 | POSTING_READ(reg); |
2115 | ||
2116 | return 0; | |
2117 | } | |
2118 | ||
2119 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ | |
2120 | static int | |
2121 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
2122 | int x, int y, enum mode_set_atomic state) | |
2123 | { | |
2124 | struct drm_device *dev = crtc->dev; | |
2125 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 2126 | |
6b8e6ed0 CW |
2127 | if (dev_priv->display.disable_fbc) |
2128 | dev_priv->display.disable_fbc(dev); | |
3dec0095 | 2129 | intel_increase_pllclock(crtc); |
81255565 | 2130 | |
6b8e6ed0 | 2131 | return dev_priv->display.update_plane(crtc, fb, x, y); |
81255565 JB |
2132 | } |
2133 | ||
14667a4b CW |
2134 | static int |
2135 | intel_finish_fb(struct drm_framebuffer *old_fb) | |
2136 | { | |
2137 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; | |
2138 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; | |
2139 | bool was_interruptible = dev_priv->mm.interruptible; | |
2140 | int ret; | |
2141 | ||
2142 | wait_event(dev_priv->pending_flip_queue, | |
2143 | atomic_read(&dev_priv->mm.wedged) || | |
2144 | atomic_read(&obj->pending_flip) == 0); | |
2145 | ||
2146 | /* Big Hammer, we also need to ensure that any pending | |
2147 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
2148 | * current scanout is retired before unpinning the old | |
2149 | * framebuffer. | |
2150 | * | |
2151 | * This should only fail upon a hung GPU, in which case we | |
2152 | * can safely continue. | |
2153 | */ | |
2154 | dev_priv->mm.interruptible = false; | |
2155 | ret = i915_gem_object_finish_gpu(obj); | |
2156 | dev_priv->mm.interruptible = was_interruptible; | |
2157 | ||
2158 | return ret; | |
2159 | } | |
2160 | ||
5c3b82e2 | 2161 | static int |
3c4fdcfb | 2162 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
94352cf9 | 2163 | struct drm_framebuffer *fb) |
79e53945 JB |
2164 | { |
2165 | struct drm_device *dev = crtc->dev; | |
6b8e6ed0 | 2166 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
2167 | struct drm_i915_master_private *master_priv; |
2168 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
94352cf9 | 2169 | struct drm_framebuffer *old_fb; |
5c3b82e2 | 2170 | int ret; |
79e53945 JB |
2171 | |
2172 | /* no fb bound */ | |
94352cf9 | 2173 | if (!fb) { |
a5071c2f | 2174 | DRM_ERROR("No FB bound\n"); |
5c3b82e2 CW |
2175 | return 0; |
2176 | } | |
2177 | ||
5826eca5 ED |
2178 | if(intel_crtc->plane > dev_priv->num_pipe) { |
2179 | DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n", | |
2180 | intel_crtc->plane, | |
2181 | dev_priv->num_pipe); | |
5c3b82e2 | 2182 | return -EINVAL; |
79e53945 JB |
2183 | } |
2184 | ||
5c3b82e2 | 2185 | mutex_lock(&dev->struct_mutex); |
265db958 | 2186 | ret = intel_pin_and_fence_fb_obj(dev, |
94352cf9 | 2187 | to_intel_framebuffer(fb)->obj, |
919926ae | 2188 | NULL); |
5c3b82e2 CW |
2189 | if (ret != 0) { |
2190 | mutex_unlock(&dev->struct_mutex); | |
a5071c2f | 2191 | DRM_ERROR("pin & fence failed\n"); |
5c3b82e2 CW |
2192 | return ret; |
2193 | } | |
79e53945 | 2194 | |
94352cf9 DV |
2195 | if (crtc->fb) |
2196 | intel_finish_fb(crtc->fb); | |
265db958 | 2197 | |
94352cf9 | 2198 | ret = dev_priv->display.update_plane(crtc, fb, x, y); |
4e6cfefc | 2199 | if (ret) { |
94352cf9 | 2200 | intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj); |
5c3b82e2 | 2201 | mutex_unlock(&dev->struct_mutex); |
a5071c2f | 2202 | DRM_ERROR("failed to update base address\n"); |
4e6cfefc | 2203 | return ret; |
79e53945 | 2204 | } |
3c4fdcfb | 2205 | |
94352cf9 DV |
2206 | old_fb = crtc->fb; |
2207 | crtc->fb = fb; | |
6c4c86f5 DV |
2208 | crtc->x = x; |
2209 | crtc->y = y; | |
94352cf9 | 2210 | |
b7f1de28 CW |
2211 | if (old_fb) { |
2212 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
1690e1eb | 2213 | intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj); |
b7f1de28 | 2214 | } |
652c393a | 2215 | |
6b8e6ed0 | 2216 | intel_update_fbc(dev); |
5c3b82e2 | 2217 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
2218 | |
2219 | if (!dev->primary->master) | |
5c3b82e2 | 2220 | return 0; |
79e53945 JB |
2221 | |
2222 | master_priv = dev->primary->master->driver_priv; | |
2223 | if (!master_priv->sarea_priv) | |
5c3b82e2 | 2224 | return 0; |
79e53945 | 2225 | |
265db958 | 2226 | if (intel_crtc->pipe) { |
79e53945 JB |
2227 | master_priv->sarea_priv->pipeB_x = x; |
2228 | master_priv->sarea_priv->pipeB_y = y; | |
5c3b82e2 CW |
2229 | } else { |
2230 | master_priv->sarea_priv->pipeA_x = x; | |
2231 | master_priv->sarea_priv->pipeA_y = y; | |
79e53945 | 2232 | } |
5c3b82e2 CW |
2233 | |
2234 | return 0; | |
79e53945 JB |
2235 | } |
2236 | ||
5eddb70b | 2237 | static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock) |
32f9d658 ZW |
2238 | { |
2239 | struct drm_device *dev = crtc->dev; | |
2240 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2241 | u32 dpa_ctl; | |
2242 | ||
28c97730 | 2243 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
32f9d658 ZW |
2244 | dpa_ctl = I915_READ(DP_A); |
2245 | dpa_ctl &= ~DP_PLL_FREQ_MASK; | |
2246 | ||
2247 | if (clock < 200000) { | |
2248 | u32 temp; | |
2249 | dpa_ctl |= DP_PLL_FREQ_160MHZ; | |
2250 | /* workaround for 160Mhz: | |
2251 | 1) program 0x4600c bits 15:0 = 0x8124 | |
2252 | 2) program 0x46010 bit 0 = 1 | |
2253 | 3) program 0x46034 bit 24 = 1 | |
2254 | 4) program 0x64000 bit 14 = 1 | |
2255 | */ | |
2256 | temp = I915_READ(0x4600c); | |
2257 | temp &= 0xffff0000; | |
2258 | I915_WRITE(0x4600c, temp | 0x8124); | |
2259 | ||
2260 | temp = I915_READ(0x46010); | |
2261 | I915_WRITE(0x46010, temp | 1); | |
2262 | ||
2263 | temp = I915_READ(0x46034); | |
2264 | I915_WRITE(0x46034, temp | (1 << 24)); | |
2265 | } else { | |
2266 | dpa_ctl |= DP_PLL_FREQ_270MHZ; | |
2267 | } | |
2268 | I915_WRITE(DP_A, dpa_ctl); | |
2269 | ||
5eddb70b | 2270 | POSTING_READ(DP_A); |
32f9d658 ZW |
2271 | udelay(500); |
2272 | } | |
2273 | ||
5e84e1a4 ZW |
2274 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
2275 | { | |
2276 | struct drm_device *dev = crtc->dev; | |
2277 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2278 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2279 | int pipe = intel_crtc->pipe; | |
2280 | u32 reg, temp; | |
2281 | ||
2282 | /* enable normal train */ | |
2283 | reg = FDI_TX_CTL(pipe); | |
2284 | temp = I915_READ(reg); | |
61e499bf | 2285 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
2286 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
2287 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
2288 | } else { |
2289 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2290 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 2291 | } |
5e84e1a4 ZW |
2292 | I915_WRITE(reg, temp); |
2293 | ||
2294 | reg = FDI_RX_CTL(pipe); | |
2295 | temp = I915_READ(reg); | |
2296 | if (HAS_PCH_CPT(dev)) { | |
2297 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2298 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2299 | } else { | |
2300 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2301 | temp |= FDI_LINK_TRAIN_NONE; | |
2302 | } | |
2303 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2304 | ||
2305 | /* wait one idle pattern time */ | |
2306 | POSTING_READ(reg); | |
2307 | udelay(1000); | |
357555c0 JB |
2308 | |
2309 | /* IVB wants error correction enabled */ | |
2310 | if (IS_IVYBRIDGE(dev)) | |
2311 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
2312 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
2313 | } |
2314 | ||
291427f5 JB |
2315 | static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe) |
2316 | { | |
2317 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2318 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2319 | ||
2320 | flags |= FDI_PHASE_SYNC_OVR(pipe); | |
2321 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */ | |
2322 | flags |= FDI_PHASE_SYNC_EN(pipe); | |
2323 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */ | |
2324 | POSTING_READ(SOUTH_CHICKEN1); | |
2325 | } | |
2326 | ||
8db9d77b ZW |
2327 | /* The FDI link training functions for ILK/Ibexpeak. */ |
2328 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
2329 | { | |
2330 | struct drm_device *dev = crtc->dev; | |
2331 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2332 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2333 | int pipe = intel_crtc->pipe; | |
0fc932b8 | 2334 | int plane = intel_crtc->plane; |
5eddb70b | 2335 | u32 reg, temp, tries; |
8db9d77b | 2336 | |
0fc932b8 JB |
2337 | /* FDI needs bits from pipe & plane first */ |
2338 | assert_pipe_enabled(dev_priv, pipe); | |
2339 | assert_plane_enabled(dev_priv, plane); | |
2340 | ||
e1a44743 AJ |
2341 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2342 | for train result */ | |
5eddb70b CW |
2343 | reg = FDI_RX_IMR(pipe); |
2344 | temp = I915_READ(reg); | |
e1a44743 AJ |
2345 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2346 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2347 | I915_WRITE(reg, temp); |
2348 | I915_READ(reg); | |
e1a44743 AJ |
2349 | udelay(150); |
2350 | ||
8db9d77b | 2351 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2352 | reg = FDI_TX_CTL(pipe); |
2353 | temp = I915_READ(reg); | |
77ffb597 AJ |
2354 | temp &= ~(7 << 19); |
2355 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2356 | temp &= ~FDI_LINK_TRAIN_NONE; |
2357 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 2358 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2359 | |
5eddb70b CW |
2360 | reg = FDI_RX_CTL(pipe); |
2361 | temp = I915_READ(reg); | |
8db9d77b ZW |
2362 | temp &= ~FDI_LINK_TRAIN_NONE; |
2363 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
2364 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2365 | ||
2366 | POSTING_READ(reg); | |
8db9d77b ZW |
2367 | udelay(150); |
2368 | ||
5b2adf89 | 2369 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
6f06ce18 JB |
2370 | if (HAS_PCH_IBX(dev)) { |
2371 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
2372 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
2373 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
2374 | } | |
5b2adf89 | 2375 | |
5eddb70b | 2376 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2377 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2378 | temp = I915_READ(reg); |
8db9d77b ZW |
2379 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2380 | ||
2381 | if ((temp & FDI_RX_BIT_LOCK)) { | |
2382 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 2383 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
2384 | break; |
2385 | } | |
8db9d77b | 2386 | } |
e1a44743 | 2387 | if (tries == 5) |
5eddb70b | 2388 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2389 | |
2390 | /* Train 2 */ | |
5eddb70b CW |
2391 | reg = FDI_TX_CTL(pipe); |
2392 | temp = I915_READ(reg); | |
8db9d77b ZW |
2393 | temp &= ~FDI_LINK_TRAIN_NONE; |
2394 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2395 | I915_WRITE(reg, temp); |
8db9d77b | 2396 | |
5eddb70b CW |
2397 | reg = FDI_RX_CTL(pipe); |
2398 | temp = I915_READ(reg); | |
8db9d77b ZW |
2399 | temp &= ~FDI_LINK_TRAIN_NONE; |
2400 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2401 | I915_WRITE(reg, temp); |
8db9d77b | 2402 | |
5eddb70b CW |
2403 | POSTING_READ(reg); |
2404 | udelay(150); | |
8db9d77b | 2405 | |
5eddb70b | 2406 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2407 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2408 | temp = I915_READ(reg); |
8db9d77b ZW |
2409 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2410 | ||
2411 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 2412 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
2413 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
2414 | break; | |
2415 | } | |
8db9d77b | 2416 | } |
e1a44743 | 2417 | if (tries == 5) |
5eddb70b | 2418 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2419 | |
2420 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 2421 | |
8db9d77b ZW |
2422 | } |
2423 | ||
0206e353 | 2424 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
2425 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2426 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
2427 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
2428 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
2429 | }; | |
2430 | ||
2431 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
2432 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
2433 | { | |
2434 | struct drm_device *dev = crtc->dev; | |
2435 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2436 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2437 | int pipe = intel_crtc->pipe; | |
fa37d39e | 2438 | u32 reg, temp, i, retry; |
8db9d77b | 2439 | |
e1a44743 AJ |
2440 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2441 | for train result */ | |
5eddb70b CW |
2442 | reg = FDI_RX_IMR(pipe); |
2443 | temp = I915_READ(reg); | |
e1a44743 AJ |
2444 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2445 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2446 | I915_WRITE(reg, temp); |
2447 | ||
2448 | POSTING_READ(reg); | |
e1a44743 AJ |
2449 | udelay(150); |
2450 | ||
8db9d77b | 2451 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2452 | reg = FDI_TX_CTL(pipe); |
2453 | temp = I915_READ(reg); | |
77ffb597 AJ |
2454 | temp &= ~(7 << 19); |
2455 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2456 | temp &= ~FDI_LINK_TRAIN_NONE; |
2457 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2458 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2459 | /* SNB-B */ | |
2460 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 2461 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2462 | |
5eddb70b CW |
2463 | reg = FDI_RX_CTL(pipe); |
2464 | temp = I915_READ(reg); | |
8db9d77b ZW |
2465 | if (HAS_PCH_CPT(dev)) { |
2466 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2467 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2468 | } else { | |
2469 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2470 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2471 | } | |
5eddb70b CW |
2472 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2473 | ||
2474 | POSTING_READ(reg); | |
8db9d77b ZW |
2475 | udelay(150); |
2476 | ||
291427f5 JB |
2477 | if (HAS_PCH_CPT(dev)) |
2478 | cpt_phase_pointer_enable(dev, pipe); | |
2479 | ||
0206e353 | 2480 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2481 | reg = FDI_TX_CTL(pipe); |
2482 | temp = I915_READ(reg); | |
8db9d77b ZW |
2483 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2484 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2485 | I915_WRITE(reg, temp); |
2486 | ||
2487 | POSTING_READ(reg); | |
8db9d77b ZW |
2488 | udelay(500); |
2489 | ||
fa37d39e SP |
2490 | for (retry = 0; retry < 5; retry++) { |
2491 | reg = FDI_RX_IIR(pipe); | |
2492 | temp = I915_READ(reg); | |
2493 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2494 | if (temp & FDI_RX_BIT_LOCK) { | |
2495 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2496 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2497 | break; | |
2498 | } | |
2499 | udelay(50); | |
8db9d77b | 2500 | } |
fa37d39e SP |
2501 | if (retry < 5) |
2502 | break; | |
8db9d77b ZW |
2503 | } |
2504 | if (i == 4) | |
5eddb70b | 2505 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2506 | |
2507 | /* Train 2 */ | |
5eddb70b CW |
2508 | reg = FDI_TX_CTL(pipe); |
2509 | temp = I915_READ(reg); | |
8db9d77b ZW |
2510 | temp &= ~FDI_LINK_TRAIN_NONE; |
2511 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2512 | if (IS_GEN6(dev)) { | |
2513 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2514 | /* SNB-B */ | |
2515 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2516 | } | |
5eddb70b | 2517 | I915_WRITE(reg, temp); |
8db9d77b | 2518 | |
5eddb70b CW |
2519 | reg = FDI_RX_CTL(pipe); |
2520 | temp = I915_READ(reg); | |
8db9d77b ZW |
2521 | if (HAS_PCH_CPT(dev)) { |
2522 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2523 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2524 | } else { | |
2525 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2526 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2527 | } | |
5eddb70b CW |
2528 | I915_WRITE(reg, temp); |
2529 | ||
2530 | POSTING_READ(reg); | |
8db9d77b ZW |
2531 | udelay(150); |
2532 | ||
0206e353 | 2533 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2534 | reg = FDI_TX_CTL(pipe); |
2535 | temp = I915_READ(reg); | |
8db9d77b ZW |
2536 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2537 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2538 | I915_WRITE(reg, temp); |
2539 | ||
2540 | POSTING_READ(reg); | |
8db9d77b ZW |
2541 | udelay(500); |
2542 | ||
fa37d39e SP |
2543 | for (retry = 0; retry < 5; retry++) { |
2544 | reg = FDI_RX_IIR(pipe); | |
2545 | temp = I915_READ(reg); | |
2546 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2547 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2548 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2549 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2550 | break; | |
2551 | } | |
2552 | udelay(50); | |
8db9d77b | 2553 | } |
fa37d39e SP |
2554 | if (retry < 5) |
2555 | break; | |
8db9d77b ZW |
2556 | } |
2557 | if (i == 4) | |
5eddb70b | 2558 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2559 | |
2560 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2561 | } | |
2562 | ||
357555c0 JB |
2563 | /* Manual link training for Ivy Bridge A0 parts */ |
2564 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
2565 | { | |
2566 | struct drm_device *dev = crtc->dev; | |
2567 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2568 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2569 | int pipe = intel_crtc->pipe; | |
2570 | u32 reg, temp, i; | |
2571 | ||
2572 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
2573 | for train result */ | |
2574 | reg = FDI_RX_IMR(pipe); | |
2575 | temp = I915_READ(reg); | |
2576 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
2577 | temp &= ~FDI_RX_BIT_LOCK; | |
2578 | I915_WRITE(reg, temp); | |
2579 | ||
2580 | POSTING_READ(reg); | |
2581 | udelay(150); | |
2582 | ||
2583 | /* enable CPU FDI TX and PCH FDI RX */ | |
2584 | reg = FDI_TX_CTL(pipe); | |
2585 | temp = I915_READ(reg); | |
2586 | temp &= ~(7 << 19); | |
2587 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
2588 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
2589 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; | |
2590 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2591 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
c4f9c4c2 | 2592 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2593 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
2594 | ||
2595 | reg = FDI_RX_CTL(pipe); | |
2596 | temp = I915_READ(reg); | |
2597 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
2598 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2599 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
c4f9c4c2 | 2600 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2601 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2602 | ||
2603 | POSTING_READ(reg); | |
2604 | udelay(150); | |
2605 | ||
291427f5 JB |
2606 | if (HAS_PCH_CPT(dev)) |
2607 | cpt_phase_pointer_enable(dev, pipe); | |
2608 | ||
0206e353 | 2609 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2610 | reg = FDI_TX_CTL(pipe); |
2611 | temp = I915_READ(reg); | |
2612 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2613 | temp |= snb_b_fdi_train_param[i]; | |
2614 | I915_WRITE(reg, temp); | |
2615 | ||
2616 | POSTING_READ(reg); | |
2617 | udelay(500); | |
2618 | ||
2619 | reg = FDI_RX_IIR(pipe); | |
2620 | temp = I915_READ(reg); | |
2621 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2622 | ||
2623 | if (temp & FDI_RX_BIT_LOCK || | |
2624 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
2625 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2626 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2627 | break; | |
2628 | } | |
2629 | } | |
2630 | if (i == 4) | |
2631 | DRM_ERROR("FDI train 1 fail!\n"); | |
2632 | ||
2633 | /* Train 2 */ | |
2634 | reg = FDI_TX_CTL(pipe); | |
2635 | temp = I915_READ(reg); | |
2636 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; | |
2637 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
2638 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2639 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2640 | I915_WRITE(reg, temp); | |
2641 | ||
2642 | reg = FDI_RX_CTL(pipe); | |
2643 | temp = I915_READ(reg); | |
2644 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2645 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2646 | I915_WRITE(reg, temp); | |
2647 | ||
2648 | POSTING_READ(reg); | |
2649 | udelay(150); | |
2650 | ||
0206e353 | 2651 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2652 | reg = FDI_TX_CTL(pipe); |
2653 | temp = I915_READ(reg); | |
2654 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2655 | temp |= snb_b_fdi_train_param[i]; | |
2656 | I915_WRITE(reg, temp); | |
2657 | ||
2658 | POSTING_READ(reg); | |
2659 | udelay(500); | |
2660 | ||
2661 | reg = FDI_RX_IIR(pipe); | |
2662 | temp = I915_READ(reg); | |
2663 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2664 | ||
2665 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2666 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2667 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2668 | break; | |
2669 | } | |
2670 | } | |
2671 | if (i == 4) | |
2672 | DRM_ERROR("FDI train 2 fail!\n"); | |
2673 | ||
2674 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2675 | } | |
2676 | ||
88cefb6c | 2677 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 2678 | { |
88cefb6c | 2679 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 2680 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 2681 | int pipe = intel_crtc->pipe; |
5eddb70b | 2682 | u32 reg, temp; |
79e53945 | 2683 | |
c64e311e | 2684 | /* Write the TU size bits so error detection works */ |
5eddb70b CW |
2685 | I915_WRITE(FDI_RX_TUSIZE1(pipe), |
2686 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
c64e311e | 2687 | |
c98e9dcf | 2688 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
2689 | reg = FDI_RX_CTL(pipe); |
2690 | temp = I915_READ(reg); | |
2691 | temp &= ~((0x7 << 19) | (0x7 << 16)); | |
c98e9dcf | 2692 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
5eddb70b CW |
2693 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
2694 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); | |
2695 | ||
2696 | POSTING_READ(reg); | |
c98e9dcf JB |
2697 | udelay(200); |
2698 | ||
2699 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
2700 | temp = I915_READ(reg); |
2701 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
2702 | ||
2703 | POSTING_READ(reg); | |
c98e9dcf JB |
2704 | udelay(200); |
2705 | ||
bf507ef7 ED |
2706 | /* On Haswell, the PLL configuration for ports and pipes is handled |
2707 | * separately, as part of DDI setup */ | |
2708 | if (!IS_HASWELL(dev)) { | |
2709 | /* Enable CPU FDI TX PLL, always on for Ironlake */ | |
2710 | reg = FDI_TX_CTL(pipe); | |
2711 | temp = I915_READ(reg); | |
2712 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
2713 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 2714 | |
bf507ef7 ED |
2715 | POSTING_READ(reg); |
2716 | udelay(100); | |
2717 | } | |
6be4a607 | 2718 | } |
0e23b99d JB |
2719 | } |
2720 | ||
88cefb6c DV |
2721 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
2722 | { | |
2723 | struct drm_device *dev = intel_crtc->base.dev; | |
2724 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2725 | int pipe = intel_crtc->pipe; | |
2726 | u32 reg, temp; | |
2727 | ||
2728 | /* Switch from PCDclk to Rawclk */ | |
2729 | reg = FDI_RX_CTL(pipe); | |
2730 | temp = I915_READ(reg); | |
2731 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
2732 | ||
2733 | /* Disable CPU FDI TX PLL */ | |
2734 | reg = FDI_TX_CTL(pipe); | |
2735 | temp = I915_READ(reg); | |
2736 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
2737 | ||
2738 | POSTING_READ(reg); | |
2739 | udelay(100); | |
2740 | ||
2741 | reg = FDI_RX_CTL(pipe); | |
2742 | temp = I915_READ(reg); | |
2743 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
2744 | ||
2745 | /* Wait for the clocks to turn off. */ | |
2746 | POSTING_READ(reg); | |
2747 | udelay(100); | |
2748 | } | |
2749 | ||
291427f5 JB |
2750 | static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe) |
2751 | { | |
2752 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2753 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2754 | ||
2755 | flags &= ~(FDI_PHASE_SYNC_EN(pipe)); | |
2756 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */ | |
2757 | flags &= ~(FDI_PHASE_SYNC_OVR(pipe)); | |
2758 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */ | |
2759 | POSTING_READ(SOUTH_CHICKEN1); | |
2760 | } | |
0fc932b8 JB |
2761 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
2762 | { | |
2763 | struct drm_device *dev = crtc->dev; | |
2764 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2765 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2766 | int pipe = intel_crtc->pipe; | |
2767 | u32 reg, temp; | |
2768 | ||
2769 | /* disable CPU FDI tx and PCH FDI rx */ | |
2770 | reg = FDI_TX_CTL(pipe); | |
2771 | temp = I915_READ(reg); | |
2772 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
2773 | POSTING_READ(reg); | |
2774 | ||
2775 | reg = FDI_RX_CTL(pipe); | |
2776 | temp = I915_READ(reg); | |
2777 | temp &= ~(0x7 << 16); | |
2778 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2779 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); | |
2780 | ||
2781 | POSTING_READ(reg); | |
2782 | udelay(100); | |
2783 | ||
2784 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
6f06ce18 JB |
2785 | if (HAS_PCH_IBX(dev)) { |
2786 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
0fc932b8 JB |
2787 | I915_WRITE(FDI_RX_CHICKEN(pipe), |
2788 | I915_READ(FDI_RX_CHICKEN(pipe) & | |
6f06ce18 | 2789 | ~FDI_RX_PHASE_SYNC_POINTER_EN)); |
291427f5 JB |
2790 | } else if (HAS_PCH_CPT(dev)) { |
2791 | cpt_phase_pointer_disable(dev, pipe); | |
6f06ce18 | 2792 | } |
0fc932b8 JB |
2793 | |
2794 | /* still set train pattern 1 */ | |
2795 | reg = FDI_TX_CTL(pipe); | |
2796 | temp = I915_READ(reg); | |
2797 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2798 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2799 | I915_WRITE(reg, temp); | |
2800 | ||
2801 | reg = FDI_RX_CTL(pipe); | |
2802 | temp = I915_READ(reg); | |
2803 | if (HAS_PCH_CPT(dev)) { | |
2804 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2805 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2806 | } else { | |
2807 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2808 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2809 | } | |
2810 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
2811 | temp &= ~(0x07 << 16); | |
2812 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2813 | I915_WRITE(reg, temp); | |
2814 | ||
2815 | POSTING_READ(reg); | |
2816 | udelay(100); | |
2817 | } | |
2818 | ||
5bb61643 CW |
2819 | static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc) |
2820 | { | |
2821 | struct drm_device *dev = crtc->dev; | |
2822 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2823 | unsigned long flags; | |
2824 | bool pending; | |
2825 | ||
2826 | if (atomic_read(&dev_priv->mm.wedged)) | |
2827 | return false; | |
2828 | ||
2829 | spin_lock_irqsave(&dev->event_lock, flags); | |
2830 | pending = to_intel_crtc(crtc)->unpin_work != NULL; | |
2831 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
2832 | ||
2833 | return pending; | |
2834 | } | |
2835 | ||
e6c3a2a6 CW |
2836 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
2837 | { | |
0f91128d | 2838 | struct drm_device *dev = crtc->dev; |
5bb61643 | 2839 | struct drm_i915_private *dev_priv = dev->dev_private; |
e6c3a2a6 CW |
2840 | |
2841 | if (crtc->fb == NULL) | |
2842 | return; | |
2843 | ||
5bb61643 CW |
2844 | wait_event(dev_priv->pending_flip_queue, |
2845 | !intel_crtc_has_pending_flip(crtc)); | |
2846 | ||
0f91128d CW |
2847 | mutex_lock(&dev->struct_mutex); |
2848 | intel_finish_fb(crtc->fb); | |
2849 | mutex_unlock(&dev->struct_mutex); | |
e6c3a2a6 CW |
2850 | } |
2851 | ||
fc316cbe | 2852 | static bool ironlake_crtc_driving_pch(struct drm_crtc *crtc) |
040484af JB |
2853 | { |
2854 | struct drm_device *dev = crtc->dev; | |
228d3e36 | 2855 | struct intel_encoder *intel_encoder; |
040484af JB |
2856 | |
2857 | /* | |
2858 | * If there's a non-PCH eDP on this crtc, it must be DP_A, and that | |
2859 | * must be driven by its own crtc; no sharing is possible. | |
2860 | */ | |
228d3e36 | 2861 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
228d3e36 | 2862 | switch (intel_encoder->type) { |
040484af | 2863 | case INTEL_OUTPUT_EDP: |
228d3e36 | 2864 | if (!intel_encoder_is_pch_edp(&intel_encoder->base)) |
040484af JB |
2865 | return false; |
2866 | continue; | |
2867 | } | |
2868 | } | |
2869 | ||
2870 | return true; | |
2871 | } | |
2872 | ||
fc316cbe PZ |
2873 | static bool haswell_crtc_driving_pch(struct drm_crtc *crtc) |
2874 | { | |
2875 | return intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG); | |
2876 | } | |
2877 | ||
e615efe4 ED |
2878 | /* Program iCLKIP clock to the desired frequency */ |
2879 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
2880 | { | |
2881 | struct drm_device *dev = crtc->dev; | |
2882 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2883 | u32 divsel, phaseinc, auxdiv, phasedir = 0; | |
2884 | u32 temp; | |
2885 | ||
2886 | /* It is necessary to ungate the pixclk gate prior to programming | |
2887 | * the divisors, and gate it back when it is done. | |
2888 | */ | |
2889 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
2890 | ||
2891 | /* Disable SSCCTL */ | |
2892 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
2893 | intel_sbi_read(dev_priv, SBI_SSCCTL6) | | |
2894 | SBI_SSCCTL_DISABLE); | |
2895 | ||
2896 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
2897 | if (crtc->mode.clock == 20000) { | |
2898 | auxdiv = 1; | |
2899 | divsel = 0x41; | |
2900 | phaseinc = 0x20; | |
2901 | } else { | |
2902 | /* The iCLK virtual clock root frequency is in MHz, | |
2903 | * but the crtc->mode.clock in in KHz. To get the divisors, | |
2904 | * it is necessary to divide one by another, so we | |
2905 | * convert the virtual clock precision to KHz here for higher | |
2906 | * precision. | |
2907 | */ | |
2908 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
2909 | u32 iclk_pi_range = 64; | |
2910 | u32 desired_divisor, msb_divisor_value, pi_value; | |
2911 | ||
2912 | desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock); | |
2913 | msb_divisor_value = desired_divisor / iclk_pi_range; | |
2914 | pi_value = desired_divisor % iclk_pi_range; | |
2915 | ||
2916 | auxdiv = 0; | |
2917 | divsel = msb_divisor_value - 2; | |
2918 | phaseinc = pi_value; | |
2919 | } | |
2920 | ||
2921 | /* This should not happen with any sane values */ | |
2922 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
2923 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
2924 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
2925 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
2926 | ||
2927 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
2928 | crtc->mode.clock, | |
2929 | auxdiv, | |
2930 | divsel, | |
2931 | phasedir, | |
2932 | phaseinc); | |
2933 | ||
2934 | /* Program SSCDIVINTPHASE6 */ | |
2935 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6); | |
2936 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; | |
2937 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
2938 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
2939 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
2940 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
2941 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
2942 | ||
2943 | intel_sbi_write(dev_priv, | |
2944 | SBI_SSCDIVINTPHASE6, | |
2945 | temp); | |
2946 | ||
2947 | /* Program SSCAUXDIV */ | |
2948 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6); | |
2949 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); | |
2950 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
2951 | intel_sbi_write(dev_priv, | |
2952 | SBI_SSCAUXDIV6, | |
2953 | temp); | |
2954 | ||
2955 | ||
2956 | /* Enable modulator and associated divider */ | |
2957 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6); | |
2958 | temp &= ~SBI_SSCCTL_DISABLE; | |
2959 | intel_sbi_write(dev_priv, | |
2960 | SBI_SSCCTL6, | |
2961 | temp); | |
2962 | ||
2963 | /* Wait for initialization time */ | |
2964 | udelay(24); | |
2965 | ||
2966 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
2967 | } | |
2968 | ||
f67a559d JB |
2969 | /* |
2970 | * Enable PCH resources required for PCH ports: | |
2971 | * - PCH PLLs | |
2972 | * - FDI training & RX/TX | |
2973 | * - update transcoder timings | |
2974 | * - DP transcoding bits | |
2975 | * - transcoder | |
2976 | */ | |
2977 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
2978 | { |
2979 | struct drm_device *dev = crtc->dev; | |
2980 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2981 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2982 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 2983 | u32 reg, temp; |
2c07245f | 2984 | |
e7e164db CW |
2985 | assert_transcoder_disabled(dev_priv, pipe); |
2986 | ||
c98e9dcf | 2987 | /* For PCH output, training FDI link */ |
674cf967 | 2988 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 2989 | |
6f13b7b5 CW |
2990 | intel_enable_pch_pll(intel_crtc); |
2991 | ||
e615efe4 ED |
2992 | if (HAS_PCH_LPT(dev)) { |
2993 | DRM_DEBUG_KMS("LPT detected: programming iCLKIP\n"); | |
2994 | lpt_program_iclkip(crtc); | |
2995 | } else if (HAS_PCH_CPT(dev)) { | |
ee7b9f93 | 2996 | u32 sel; |
4b645f14 | 2997 | |
c98e9dcf | 2998 | temp = I915_READ(PCH_DPLL_SEL); |
ee7b9f93 JB |
2999 | switch (pipe) { |
3000 | default: | |
3001 | case 0: | |
3002 | temp |= TRANSA_DPLL_ENABLE; | |
3003 | sel = TRANSA_DPLLB_SEL; | |
3004 | break; | |
3005 | case 1: | |
3006 | temp |= TRANSB_DPLL_ENABLE; | |
3007 | sel = TRANSB_DPLLB_SEL; | |
3008 | break; | |
3009 | case 2: | |
3010 | temp |= TRANSC_DPLL_ENABLE; | |
3011 | sel = TRANSC_DPLLB_SEL; | |
3012 | break; | |
d64311ab | 3013 | } |
ee7b9f93 JB |
3014 | if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B) |
3015 | temp |= sel; | |
3016 | else | |
3017 | temp &= ~sel; | |
c98e9dcf | 3018 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 3019 | } |
5eddb70b | 3020 | |
d9b6cb56 JB |
3021 | /* set transcoder timing, panel must allow it */ |
3022 | assert_panel_unlocked(dev_priv, pipe); | |
5eddb70b CW |
3023 | I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe))); |
3024 | I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe))); | |
3025 | I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe))); | |
8db9d77b | 3026 | |
5eddb70b CW |
3027 | I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe))); |
3028 | I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe))); | |
3029 | I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe))); | |
0529a0d9 | 3030 | I915_WRITE(TRANS_VSYNCSHIFT(pipe), I915_READ(VSYNCSHIFT(pipe))); |
8db9d77b | 3031 | |
f57e1e3a ED |
3032 | if (!IS_HASWELL(dev)) |
3033 | intel_fdi_normal_train(crtc); | |
5e84e1a4 | 3034 | |
c98e9dcf JB |
3035 | /* For PCH DP, enable TRANS_DP_CTL */ |
3036 | if (HAS_PCH_CPT(dev) && | |
417e822d KP |
3037 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
3038 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
9325c9f0 | 3039 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) >> 5; |
5eddb70b CW |
3040 | reg = TRANS_DP_CTL(pipe); |
3041 | temp = I915_READ(reg); | |
3042 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
3043 | TRANS_DP_SYNC_MASK | |
3044 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
3045 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
3046 | TRANS_DP_ENH_FRAMING); | |
9325c9f0 | 3047 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
3048 | |
3049 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 3050 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 3051 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 3052 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
3053 | |
3054 | switch (intel_trans_dp_port_sel(crtc)) { | |
3055 | case PCH_DP_B: | |
5eddb70b | 3056 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
3057 | break; |
3058 | case PCH_DP_C: | |
5eddb70b | 3059 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
3060 | break; |
3061 | case PCH_DP_D: | |
5eddb70b | 3062 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
3063 | break; |
3064 | default: | |
3065 | DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); | |
5eddb70b | 3066 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf | 3067 | break; |
32f9d658 | 3068 | } |
2c07245f | 3069 | |
5eddb70b | 3070 | I915_WRITE(reg, temp); |
6be4a607 | 3071 | } |
b52eb4dc | 3072 | |
040484af | 3073 | intel_enable_transcoder(dev_priv, pipe); |
f67a559d JB |
3074 | } |
3075 | ||
ee7b9f93 JB |
3076 | static void intel_put_pch_pll(struct intel_crtc *intel_crtc) |
3077 | { | |
3078 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
3079 | ||
3080 | if (pll == NULL) | |
3081 | return; | |
3082 | ||
3083 | if (pll->refcount == 0) { | |
3084 | WARN(1, "bad PCH PLL refcount\n"); | |
3085 | return; | |
3086 | } | |
3087 | ||
3088 | --pll->refcount; | |
3089 | intel_crtc->pch_pll = NULL; | |
3090 | } | |
3091 | ||
3092 | static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp) | |
3093 | { | |
3094 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; | |
3095 | struct intel_pch_pll *pll; | |
3096 | int i; | |
3097 | ||
3098 | pll = intel_crtc->pch_pll; | |
3099 | if (pll) { | |
3100 | DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n", | |
3101 | intel_crtc->base.base.id, pll->pll_reg); | |
3102 | goto prepare; | |
3103 | } | |
3104 | ||
98b6bd99 DV |
3105 | if (HAS_PCH_IBX(dev_priv->dev)) { |
3106 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
3107 | i = intel_crtc->pipe; | |
3108 | pll = &dev_priv->pch_plls[i]; | |
3109 | ||
3110 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n", | |
3111 | intel_crtc->base.base.id, pll->pll_reg); | |
3112 | ||
3113 | goto found; | |
3114 | } | |
3115 | ||
ee7b9f93 JB |
3116 | for (i = 0; i < dev_priv->num_pch_pll; i++) { |
3117 | pll = &dev_priv->pch_plls[i]; | |
3118 | ||
3119 | /* Only want to check enabled timings first */ | |
3120 | if (pll->refcount == 0) | |
3121 | continue; | |
3122 | ||
3123 | if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) && | |
3124 | fp == I915_READ(pll->fp0_reg)) { | |
3125 | DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n", | |
3126 | intel_crtc->base.base.id, | |
3127 | pll->pll_reg, pll->refcount, pll->active); | |
3128 | ||
3129 | goto found; | |
3130 | } | |
3131 | } | |
3132 | ||
3133 | /* Ok no matching timings, maybe there's a free one? */ | |
3134 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
3135 | pll = &dev_priv->pch_plls[i]; | |
3136 | if (pll->refcount == 0) { | |
3137 | DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n", | |
3138 | intel_crtc->base.base.id, pll->pll_reg); | |
3139 | goto found; | |
3140 | } | |
3141 | } | |
3142 | ||
3143 | return NULL; | |
3144 | ||
3145 | found: | |
3146 | intel_crtc->pch_pll = pll; | |
3147 | pll->refcount++; | |
3148 | DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i, intel_crtc->pipe); | |
3149 | prepare: /* separate function? */ | |
3150 | DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg); | |
ee7b9f93 | 3151 | |
e04c7350 CW |
3152 | /* Wait for the clocks to stabilize before rewriting the regs */ |
3153 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3154 | POSTING_READ(pll->pll_reg); |
3155 | udelay(150); | |
e04c7350 CW |
3156 | |
3157 | I915_WRITE(pll->fp0_reg, fp); | |
3158 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3159 | pll->on = false; |
3160 | return pll; | |
3161 | } | |
3162 | ||
d4270e57 JB |
3163 | void intel_cpt_verify_modeset(struct drm_device *dev, int pipe) |
3164 | { | |
3165 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3166 | int dslreg = PIPEDSL(pipe), tc2reg = TRANS_CHICKEN2(pipe); | |
3167 | u32 temp; | |
3168 | ||
3169 | temp = I915_READ(dslreg); | |
3170 | udelay(500); | |
3171 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
3172 | /* Without this, mode sets may fail silently on FDI */ | |
3173 | I915_WRITE(tc2reg, TRANS_AUTOTRAIN_GEN_STALL_DIS); | |
3174 | udelay(250); | |
3175 | I915_WRITE(tc2reg, 0); | |
3176 | if (wait_for(I915_READ(dslreg) != temp, 5)) | |
3177 | DRM_ERROR("mode set failed: pipe %d stuck\n", pipe); | |
3178 | } | |
3179 | } | |
3180 | ||
f67a559d JB |
3181 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
3182 | { | |
3183 | struct drm_device *dev = crtc->dev; | |
3184 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3185 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3186 | struct intel_encoder *encoder; |
f67a559d JB |
3187 | int pipe = intel_crtc->pipe; |
3188 | int plane = intel_crtc->plane; | |
3189 | u32 temp; | |
3190 | bool is_pch_port; | |
3191 | ||
08a48469 DV |
3192 | WARN_ON(!crtc->enabled); |
3193 | ||
f67a559d JB |
3194 | if (intel_crtc->active) |
3195 | return; | |
3196 | ||
3197 | intel_crtc->active = true; | |
3198 | intel_update_watermarks(dev); | |
3199 | ||
3200 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3201 | temp = I915_READ(PCH_LVDS); | |
3202 | if ((temp & LVDS_PORT_EN) == 0) | |
3203 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); | |
3204 | } | |
3205 | ||
fc316cbe | 3206 | is_pch_port = ironlake_crtc_driving_pch(crtc); |
f67a559d | 3207 | |
46b6f814 | 3208 | if (is_pch_port) { |
88cefb6c | 3209 | ironlake_fdi_pll_enable(intel_crtc); |
46b6f814 DV |
3210 | } else { |
3211 | assert_fdi_tx_disabled(dev_priv, pipe); | |
3212 | assert_fdi_rx_disabled(dev_priv, pipe); | |
3213 | } | |
f67a559d | 3214 | |
bf49ec8c DV |
3215 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3216 | if (encoder->pre_enable) | |
3217 | encoder->pre_enable(encoder); | |
3218 | ||
f67a559d JB |
3219 | /* Enable panel fitting for LVDS */ |
3220 | if (dev_priv->pch_pf_size && | |
3221 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) { | |
3222 | /* Force use of hard-coded filter coefficients | |
3223 | * as some pre-programmed values are broken, | |
3224 | * e.g. x201. | |
3225 | */ | |
9db4a9c7 JB |
3226 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); |
3227 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); | |
3228 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); | |
f67a559d JB |
3229 | } |
3230 | ||
9c54c0dd JB |
3231 | /* |
3232 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3233 | * clocks enabled | |
3234 | */ | |
3235 | intel_crtc_load_lut(crtc); | |
3236 | ||
f67a559d JB |
3237 | intel_enable_pipe(dev_priv, pipe, is_pch_port); |
3238 | intel_enable_plane(dev_priv, plane, pipe); | |
3239 | ||
3240 | if (is_pch_port) | |
3241 | ironlake_pch_enable(crtc); | |
c98e9dcf | 3242 | |
d1ebd816 | 3243 | mutex_lock(&dev->struct_mutex); |
bed4a673 | 3244 | intel_update_fbc(dev); |
d1ebd816 BW |
3245 | mutex_unlock(&dev->struct_mutex); |
3246 | ||
6b383a7f | 3247 | intel_crtc_update_cursor(crtc, true); |
ef9c3aee | 3248 | |
fa5c73b1 DV |
3249 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3250 | encoder->enable(encoder); | |
61b77ddd DV |
3251 | |
3252 | if (HAS_PCH_CPT(dev)) | |
3253 | intel_cpt_verify_modeset(dev, intel_crtc->pipe); | |
6ce94100 DV |
3254 | |
3255 | /* | |
3256 | * There seems to be a race in PCH platform hw (at least on some | |
3257 | * outputs) where an enabled pipe still completes any pageflip right | |
3258 | * away (as if the pipe is off) instead of waiting for vblank. As soon | |
3259 | * as the first vblank happend, everything works as expected. Hence just | |
3260 | * wait for one vblank before returning to avoid strange things | |
3261 | * happening. | |
3262 | */ | |
3263 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
6be4a607 JB |
3264 | } |
3265 | ||
4f771f10 PZ |
3266 | static void haswell_crtc_enable(struct drm_crtc *crtc) |
3267 | { | |
3268 | struct drm_device *dev = crtc->dev; | |
3269 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3270 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3271 | struct intel_encoder *encoder; | |
3272 | int pipe = intel_crtc->pipe; | |
3273 | int plane = intel_crtc->plane; | |
4f771f10 PZ |
3274 | bool is_pch_port; |
3275 | ||
3276 | WARN_ON(!crtc->enabled); | |
3277 | ||
3278 | if (intel_crtc->active) | |
3279 | return; | |
3280 | ||
3281 | intel_crtc->active = true; | |
3282 | intel_update_watermarks(dev); | |
3283 | ||
fc316cbe | 3284 | is_pch_port = haswell_crtc_driving_pch(crtc); |
4f771f10 PZ |
3285 | |
3286 | if (is_pch_port) { | |
3287 | ironlake_fdi_pll_enable(intel_crtc); | |
3288 | } else { | |
3289 | assert_fdi_tx_disabled(dev_priv, pipe); | |
3290 | assert_fdi_rx_disabled(dev_priv, pipe); | |
3291 | } | |
3292 | ||
3293 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3294 | if (encoder->pre_enable) | |
3295 | encoder->pre_enable(encoder); | |
3296 | ||
1f544388 | 3297 | intel_ddi_enable_pipe_clock(intel_crtc); |
4f771f10 | 3298 | |
1f544388 PZ |
3299 | /* Enable panel fitting for eDP */ |
3300 | if (dev_priv->pch_pf_size && HAS_eDP) { | |
4f771f10 PZ |
3301 | /* Force use of hard-coded filter coefficients |
3302 | * as some pre-programmed values are broken, | |
3303 | * e.g. x201. | |
3304 | */ | |
3305 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); | |
3306 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); | |
3307 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); | |
3308 | } | |
3309 | ||
3310 | /* | |
3311 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3312 | * clocks enabled | |
3313 | */ | |
3314 | intel_crtc_load_lut(crtc); | |
3315 | ||
1f544388 PZ |
3316 | intel_ddi_set_pipe_settings(crtc); |
3317 | intel_ddi_enable_pipe_func(crtc); | |
4f771f10 PZ |
3318 | |
3319 | intel_enable_pipe(dev_priv, pipe, is_pch_port); | |
3320 | intel_enable_plane(dev_priv, plane, pipe); | |
3321 | ||
3322 | if (is_pch_port) | |
3323 | ironlake_pch_enable(crtc); | |
3324 | ||
3325 | mutex_lock(&dev->struct_mutex); | |
3326 | intel_update_fbc(dev); | |
3327 | mutex_unlock(&dev->struct_mutex); | |
3328 | ||
3329 | intel_crtc_update_cursor(crtc, true); | |
3330 | ||
3331 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3332 | encoder->enable(encoder); | |
3333 | ||
4f771f10 PZ |
3334 | /* |
3335 | * There seems to be a race in PCH platform hw (at least on some | |
3336 | * outputs) where an enabled pipe still completes any pageflip right | |
3337 | * away (as if the pipe is off) instead of waiting for vblank. As soon | |
3338 | * as the first vblank happend, everything works as expected. Hence just | |
3339 | * wait for one vblank before returning to avoid strange things | |
3340 | * happening. | |
3341 | */ | |
3342 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
3343 | } | |
3344 | ||
6be4a607 JB |
3345 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
3346 | { | |
3347 | struct drm_device *dev = crtc->dev; | |
3348 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3349 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3350 | struct intel_encoder *encoder; |
6be4a607 JB |
3351 | int pipe = intel_crtc->pipe; |
3352 | int plane = intel_crtc->plane; | |
5eddb70b | 3353 | u32 reg, temp; |
b52eb4dc | 3354 | |
ef9c3aee | 3355 | |
f7abfe8b CW |
3356 | if (!intel_crtc->active) |
3357 | return; | |
3358 | ||
ea9d758d DV |
3359 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3360 | encoder->disable(encoder); | |
3361 | ||
e6c3a2a6 | 3362 | intel_crtc_wait_for_pending_flips(crtc); |
6be4a607 | 3363 | drm_vblank_off(dev, pipe); |
6b383a7f | 3364 | intel_crtc_update_cursor(crtc, false); |
5eddb70b | 3365 | |
b24e7179 | 3366 | intel_disable_plane(dev_priv, plane, pipe); |
913d8d11 | 3367 | |
973d04f9 CW |
3368 | if (dev_priv->cfb_plane == plane) |
3369 | intel_disable_fbc(dev); | |
2c07245f | 3370 | |
b24e7179 | 3371 | intel_disable_pipe(dev_priv, pipe); |
32f9d658 | 3372 | |
6be4a607 | 3373 | /* Disable PF */ |
9db4a9c7 JB |
3374 | I915_WRITE(PF_CTL(pipe), 0); |
3375 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
2c07245f | 3376 | |
bf49ec8c DV |
3377 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3378 | if (encoder->post_disable) | |
3379 | encoder->post_disable(encoder); | |
3380 | ||
0fc932b8 | 3381 | ironlake_fdi_disable(crtc); |
2c07245f | 3382 | |
040484af | 3383 | intel_disable_transcoder(dev_priv, pipe); |
913d8d11 | 3384 | |
6be4a607 JB |
3385 | if (HAS_PCH_CPT(dev)) { |
3386 | /* disable TRANS_DP_CTL */ | |
5eddb70b CW |
3387 | reg = TRANS_DP_CTL(pipe); |
3388 | temp = I915_READ(reg); | |
3389 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); | |
cb3543c6 | 3390 | temp |= TRANS_DP_PORT_SEL_NONE; |
5eddb70b | 3391 | I915_WRITE(reg, temp); |
6be4a607 JB |
3392 | |
3393 | /* disable DPLL_SEL */ | |
3394 | temp = I915_READ(PCH_DPLL_SEL); | |
9db4a9c7 JB |
3395 | switch (pipe) { |
3396 | case 0: | |
d64311ab | 3397 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
9db4a9c7 JB |
3398 | break; |
3399 | case 1: | |
6be4a607 | 3400 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
9db4a9c7 JB |
3401 | break; |
3402 | case 2: | |
4b645f14 | 3403 | /* C shares PLL A or B */ |
d64311ab | 3404 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
9db4a9c7 JB |
3405 | break; |
3406 | default: | |
3407 | BUG(); /* wtf */ | |
3408 | } | |
6be4a607 | 3409 | I915_WRITE(PCH_DPLL_SEL, temp); |
6be4a607 | 3410 | } |
e3421a18 | 3411 | |
6be4a607 | 3412 | /* disable PCH DPLL */ |
ee7b9f93 | 3413 | intel_disable_pch_pll(intel_crtc); |
8db9d77b | 3414 | |
88cefb6c | 3415 | ironlake_fdi_pll_disable(intel_crtc); |
6b383a7f | 3416 | |
f7abfe8b | 3417 | intel_crtc->active = false; |
6b383a7f | 3418 | intel_update_watermarks(dev); |
d1ebd816 BW |
3419 | |
3420 | mutex_lock(&dev->struct_mutex); | |
6b383a7f | 3421 | intel_update_fbc(dev); |
d1ebd816 | 3422 | mutex_unlock(&dev->struct_mutex); |
6be4a607 | 3423 | } |
1b3c7a47 | 3424 | |
4f771f10 PZ |
3425 | static void haswell_crtc_disable(struct drm_crtc *crtc) |
3426 | { | |
3427 | struct drm_device *dev = crtc->dev; | |
3428 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3429 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3430 | struct intel_encoder *encoder; | |
3431 | int pipe = intel_crtc->pipe; | |
3432 | int plane = intel_crtc->plane; | |
4f771f10 PZ |
3433 | |
3434 | if (!intel_crtc->active) | |
3435 | return; | |
3436 | ||
3437 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3438 | encoder->disable(encoder); | |
3439 | ||
3440 | intel_crtc_wait_for_pending_flips(crtc); | |
3441 | drm_vblank_off(dev, pipe); | |
3442 | intel_crtc_update_cursor(crtc, false); | |
3443 | ||
3444 | intel_disable_plane(dev_priv, plane, pipe); | |
3445 | ||
3446 | if (dev_priv->cfb_plane == plane) | |
3447 | intel_disable_fbc(dev); | |
3448 | ||
3449 | intel_disable_pipe(dev_priv, pipe); | |
3450 | ||
1f544388 | 3451 | intel_ddi_disable_pipe_func(dev_priv, pipe); |
4f771f10 PZ |
3452 | |
3453 | /* Disable PF */ | |
3454 | I915_WRITE(PF_CTL(pipe), 0); | |
3455 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
3456 | ||
1f544388 | 3457 | intel_ddi_disable_pipe_clock(intel_crtc); |
4f771f10 PZ |
3458 | |
3459 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3460 | if (encoder->post_disable) | |
3461 | encoder->post_disable(encoder); | |
3462 | ||
3463 | ironlake_fdi_disable(crtc); | |
3464 | ||
3465 | intel_disable_transcoder(dev_priv, pipe); | |
3466 | ||
4f771f10 PZ |
3467 | /* disable PCH DPLL */ |
3468 | intel_disable_pch_pll(intel_crtc); | |
3469 | ||
3470 | ironlake_fdi_pll_disable(intel_crtc); | |
3471 | ||
3472 | intel_crtc->active = false; | |
3473 | intel_update_watermarks(dev); | |
3474 | ||
3475 | mutex_lock(&dev->struct_mutex); | |
3476 | intel_update_fbc(dev); | |
3477 | mutex_unlock(&dev->struct_mutex); | |
3478 | } | |
3479 | ||
ee7b9f93 JB |
3480 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
3481 | { | |
3482 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3483 | intel_put_pch_pll(intel_crtc); | |
3484 | } | |
3485 | ||
6441ab5f PZ |
3486 | static void haswell_crtc_off(struct drm_crtc *crtc) |
3487 | { | |
3488 | intel_ddi_put_crtc_pll(crtc); | |
3489 | } | |
3490 | ||
02e792fb DV |
3491 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
3492 | { | |
02e792fb | 3493 | if (!enable && intel_crtc->overlay) { |
23f09ce3 | 3494 | struct drm_device *dev = intel_crtc->base.dev; |
ce453d81 | 3495 | struct drm_i915_private *dev_priv = dev->dev_private; |
03f77ea5 | 3496 | |
23f09ce3 | 3497 | mutex_lock(&dev->struct_mutex); |
ce453d81 CW |
3498 | dev_priv->mm.interruptible = false; |
3499 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
3500 | dev_priv->mm.interruptible = true; | |
23f09ce3 | 3501 | mutex_unlock(&dev->struct_mutex); |
02e792fb | 3502 | } |
02e792fb | 3503 | |
5dcdbcb0 CW |
3504 | /* Let userspace switch the overlay on again. In most cases userspace |
3505 | * has to recompute where to put it anyway. | |
3506 | */ | |
02e792fb DV |
3507 | } |
3508 | ||
0b8765c6 | 3509 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
3510 | { |
3511 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
3512 | struct drm_i915_private *dev_priv = dev->dev_private; |
3513 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3514 | struct intel_encoder *encoder; |
79e53945 | 3515 | int pipe = intel_crtc->pipe; |
80824003 | 3516 | int plane = intel_crtc->plane; |
79e53945 | 3517 | |
08a48469 DV |
3518 | WARN_ON(!crtc->enabled); |
3519 | ||
f7abfe8b CW |
3520 | if (intel_crtc->active) |
3521 | return; | |
3522 | ||
3523 | intel_crtc->active = true; | |
6b383a7f CW |
3524 | intel_update_watermarks(dev); |
3525 | ||
63d7bbe9 | 3526 | intel_enable_pll(dev_priv, pipe); |
040484af | 3527 | intel_enable_pipe(dev_priv, pipe, false); |
b24e7179 | 3528 | intel_enable_plane(dev_priv, plane, pipe); |
79e53945 | 3529 | |
0b8765c6 | 3530 | intel_crtc_load_lut(crtc); |
bed4a673 | 3531 | intel_update_fbc(dev); |
79e53945 | 3532 | |
0b8765c6 JB |
3533 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
3534 | intel_crtc_dpms_overlay(intel_crtc, true); | |
6b383a7f | 3535 | intel_crtc_update_cursor(crtc, true); |
ef9c3aee | 3536 | |
fa5c73b1 DV |
3537 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3538 | encoder->enable(encoder); | |
0b8765c6 | 3539 | } |
79e53945 | 3540 | |
0b8765c6 JB |
3541 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
3542 | { | |
3543 | struct drm_device *dev = crtc->dev; | |
3544 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3545 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3546 | struct intel_encoder *encoder; |
0b8765c6 JB |
3547 | int pipe = intel_crtc->pipe; |
3548 | int plane = intel_crtc->plane; | |
b690e96c | 3549 | |
ef9c3aee | 3550 | |
f7abfe8b CW |
3551 | if (!intel_crtc->active) |
3552 | return; | |
3553 | ||
ea9d758d DV |
3554 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3555 | encoder->disable(encoder); | |
3556 | ||
0b8765c6 | 3557 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
e6c3a2a6 CW |
3558 | intel_crtc_wait_for_pending_flips(crtc); |
3559 | drm_vblank_off(dev, pipe); | |
0b8765c6 | 3560 | intel_crtc_dpms_overlay(intel_crtc, false); |
6b383a7f | 3561 | intel_crtc_update_cursor(crtc, false); |
0b8765c6 | 3562 | |
973d04f9 CW |
3563 | if (dev_priv->cfb_plane == plane) |
3564 | intel_disable_fbc(dev); | |
79e53945 | 3565 | |
b24e7179 | 3566 | intel_disable_plane(dev_priv, plane, pipe); |
b24e7179 | 3567 | intel_disable_pipe(dev_priv, pipe); |
63d7bbe9 | 3568 | intel_disable_pll(dev_priv, pipe); |
0b8765c6 | 3569 | |
f7abfe8b | 3570 | intel_crtc->active = false; |
6b383a7f CW |
3571 | intel_update_fbc(dev); |
3572 | intel_update_watermarks(dev); | |
0b8765c6 JB |
3573 | } |
3574 | ||
ee7b9f93 JB |
3575 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
3576 | { | |
3577 | } | |
3578 | ||
976f8a20 DV |
3579 | static void intel_crtc_update_sarea(struct drm_crtc *crtc, |
3580 | bool enabled) | |
2c07245f ZW |
3581 | { |
3582 | struct drm_device *dev = crtc->dev; | |
3583 | struct drm_i915_master_private *master_priv; | |
3584 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3585 | int pipe = intel_crtc->pipe; | |
79e53945 JB |
3586 | |
3587 | if (!dev->primary->master) | |
3588 | return; | |
3589 | ||
3590 | master_priv = dev->primary->master->driver_priv; | |
3591 | if (!master_priv->sarea_priv) | |
3592 | return; | |
3593 | ||
79e53945 JB |
3594 | switch (pipe) { |
3595 | case 0: | |
3596 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
3597 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
3598 | break; | |
3599 | case 1: | |
3600 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
3601 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
3602 | break; | |
3603 | default: | |
9db4a9c7 | 3604 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
79e53945 JB |
3605 | break; |
3606 | } | |
79e53945 JB |
3607 | } |
3608 | ||
976f8a20 DV |
3609 | /** |
3610 | * Sets the power management mode of the pipe and plane. | |
3611 | */ | |
3612 | void intel_crtc_update_dpms(struct drm_crtc *crtc) | |
3613 | { | |
3614 | struct drm_device *dev = crtc->dev; | |
3615 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3616 | struct intel_encoder *intel_encoder; | |
3617 | bool enable = false; | |
3618 | ||
3619 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) | |
3620 | enable |= intel_encoder->connectors_active; | |
3621 | ||
3622 | if (enable) | |
3623 | dev_priv->display.crtc_enable(crtc); | |
3624 | else | |
3625 | dev_priv->display.crtc_disable(crtc); | |
3626 | ||
3627 | intel_crtc_update_sarea(crtc, enable); | |
3628 | } | |
3629 | ||
3630 | static void intel_crtc_noop(struct drm_crtc *crtc) | |
3631 | { | |
3632 | } | |
3633 | ||
cdd59983 CW |
3634 | static void intel_crtc_disable(struct drm_crtc *crtc) |
3635 | { | |
cdd59983 | 3636 | struct drm_device *dev = crtc->dev; |
976f8a20 | 3637 | struct drm_connector *connector; |
ee7b9f93 | 3638 | struct drm_i915_private *dev_priv = dev->dev_private; |
cdd59983 | 3639 | |
976f8a20 DV |
3640 | /* crtc should still be enabled when we disable it. */ |
3641 | WARN_ON(!crtc->enabled); | |
3642 | ||
3643 | dev_priv->display.crtc_disable(crtc); | |
3644 | intel_crtc_update_sarea(crtc, false); | |
ee7b9f93 JB |
3645 | dev_priv->display.off(crtc); |
3646 | ||
931872fc CW |
3647 | assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); |
3648 | assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); | |
cdd59983 CW |
3649 | |
3650 | if (crtc->fb) { | |
3651 | mutex_lock(&dev->struct_mutex); | |
1690e1eb | 3652 | intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
cdd59983 | 3653 | mutex_unlock(&dev->struct_mutex); |
976f8a20 DV |
3654 | crtc->fb = NULL; |
3655 | } | |
3656 | ||
3657 | /* Update computed state. */ | |
3658 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
3659 | if (!connector->encoder || !connector->encoder->crtc) | |
3660 | continue; | |
3661 | ||
3662 | if (connector->encoder->crtc != crtc) | |
3663 | continue; | |
3664 | ||
3665 | connector->dpms = DRM_MODE_DPMS_OFF; | |
3666 | to_intel_encoder(connector->encoder)->connectors_active = false; | |
cdd59983 CW |
3667 | } |
3668 | } | |
3669 | ||
a261b246 | 3670 | void intel_modeset_disable(struct drm_device *dev) |
79e53945 | 3671 | { |
a261b246 DV |
3672 | struct drm_crtc *crtc; |
3673 | ||
3674 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
3675 | if (crtc->enabled) | |
3676 | intel_crtc_disable(crtc); | |
3677 | } | |
79e53945 JB |
3678 | } |
3679 | ||
1f703855 | 3680 | void intel_encoder_noop(struct drm_encoder *encoder) |
79e53945 | 3681 | { |
7e7d76c3 JB |
3682 | } |
3683 | ||
ea5b213a | 3684 | void intel_encoder_destroy(struct drm_encoder *encoder) |
7e7d76c3 | 3685 | { |
4ef69c7a | 3686 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 3687 | |
ea5b213a CW |
3688 | drm_encoder_cleanup(encoder); |
3689 | kfree(intel_encoder); | |
7e7d76c3 JB |
3690 | } |
3691 | ||
5ab432ef DV |
3692 | /* Simple dpms helper for encodres with just one connector, no cloning and only |
3693 | * one kind of off state. It clamps all !ON modes to fully OFF and changes the | |
3694 | * state of the entire output pipe. */ | |
3695 | void intel_encoder_dpms(struct intel_encoder *encoder, int mode) | |
7e7d76c3 | 3696 | { |
5ab432ef DV |
3697 | if (mode == DRM_MODE_DPMS_ON) { |
3698 | encoder->connectors_active = true; | |
3699 | ||
b2cabb0e | 3700 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef DV |
3701 | } else { |
3702 | encoder->connectors_active = false; | |
3703 | ||
b2cabb0e | 3704 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef | 3705 | } |
79e53945 JB |
3706 | } |
3707 | ||
0a91ca29 DV |
3708 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
3709 | * internal consistency). */ | |
b980514c | 3710 | static void intel_connector_check_state(struct intel_connector *connector) |
79e53945 | 3711 | { |
0a91ca29 DV |
3712 | if (connector->get_hw_state(connector)) { |
3713 | struct intel_encoder *encoder = connector->encoder; | |
3714 | struct drm_crtc *crtc; | |
3715 | bool encoder_enabled; | |
3716 | enum pipe pipe; | |
3717 | ||
3718 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
3719 | connector->base.base.id, | |
3720 | drm_get_connector_name(&connector->base)); | |
3721 | ||
3722 | WARN(connector->base.dpms == DRM_MODE_DPMS_OFF, | |
3723 | "wrong connector dpms state\n"); | |
3724 | WARN(connector->base.encoder != &encoder->base, | |
3725 | "active connector not linked to encoder\n"); | |
3726 | WARN(!encoder->connectors_active, | |
3727 | "encoder->connectors_active not set\n"); | |
3728 | ||
3729 | encoder_enabled = encoder->get_hw_state(encoder, &pipe); | |
3730 | WARN(!encoder_enabled, "encoder not enabled\n"); | |
3731 | if (WARN_ON(!encoder->base.crtc)) | |
3732 | return; | |
3733 | ||
3734 | crtc = encoder->base.crtc; | |
3735 | ||
3736 | WARN(!crtc->enabled, "crtc not enabled\n"); | |
3737 | WARN(!to_intel_crtc(crtc)->active, "crtc not active\n"); | |
3738 | WARN(pipe != to_intel_crtc(crtc)->pipe, | |
3739 | "encoder active on the wrong pipe\n"); | |
3740 | } | |
79e53945 JB |
3741 | } |
3742 | ||
5ab432ef DV |
3743 | /* Even simpler default implementation, if there's really no special case to |
3744 | * consider. */ | |
3745 | void intel_connector_dpms(struct drm_connector *connector, int mode) | |
79e53945 | 3746 | { |
5ab432ef | 3747 | struct intel_encoder *encoder = intel_attached_encoder(connector); |
d4270e57 | 3748 | |
5ab432ef DV |
3749 | /* All the simple cases only support two dpms states. */ |
3750 | if (mode != DRM_MODE_DPMS_ON) | |
3751 | mode = DRM_MODE_DPMS_OFF; | |
d4270e57 | 3752 | |
5ab432ef DV |
3753 | if (mode == connector->dpms) |
3754 | return; | |
3755 | ||
3756 | connector->dpms = mode; | |
3757 | ||
3758 | /* Only need to change hw state when actually enabled */ | |
3759 | if (encoder->base.crtc) | |
3760 | intel_encoder_dpms(encoder, mode); | |
3761 | else | |
8af6cf88 | 3762 | WARN_ON(encoder->connectors_active != false); |
0a91ca29 | 3763 | |
b980514c | 3764 | intel_modeset_check_state(connector->dev); |
79e53945 JB |
3765 | } |
3766 | ||
f0947c37 DV |
3767 | /* Simple connector->get_hw_state implementation for encoders that support only |
3768 | * one connector and no cloning and hence the encoder state determines the state | |
3769 | * of the connector. */ | |
3770 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
ea5b213a | 3771 | { |
24929352 | 3772 | enum pipe pipe = 0; |
f0947c37 | 3773 | struct intel_encoder *encoder = connector->encoder; |
ea5b213a | 3774 | |
f0947c37 | 3775 | return encoder->get_hw_state(encoder, &pipe); |
ea5b213a CW |
3776 | } |
3777 | ||
79e53945 | 3778 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
35313cde | 3779 | const struct drm_display_mode *mode, |
79e53945 JB |
3780 | struct drm_display_mode *adjusted_mode) |
3781 | { | |
2c07245f | 3782 | struct drm_device *dev = crtc->dev; |
89749350 | 3783 | |
bad720ff | 3784 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f | 3785 | /* FDI link clock is fixed at 2.7G */ |
2377b741 JB |
3786 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
3787 | return false; | |
2c07245f | 3788 | } |
89749350 | 3789 | |
f9bef081 DV |
3790 | /* All interlaced capable intel hw wants timings in frames. Note though |
3791 | * that intel_lvds_mode_fixup does some funny tricks with the crtc | |
3792 | * timings, so we need to be careful not to clobber these.*/ | |
3793 | if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET)) | |
3794 | drm_mode_set_crtcinfo(adjusted_mode, 0); | |
89749350 | 3795 | |
44f46b42 CW |
3796 | /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes |
3797 | * with a hsync front porch of 0. | |
3798 | */ | |
3799 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && | |
3800 | adjusted_mode->hsync_start == adjusted_mode->hdisplay) | |
3801 | return false; | |
3802 | ||
79e53945 JB |
3803 | return true; |
3804 | } | |
3805 | ||
25eb05fc JB |
3806 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
3807 | { | |
3808 | return 400000; /* FIXME */ | |
3809 | } | |
3810 | ||
e70236a8 JB |
3811 | static int i945_get_display_clock_speed(struct drm_device *dev) |
3812 | { | |
3813 | return 400000; | |
3814 | } | |
79e53945 | 3815 | |
e70236a8 | 3816 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 3817 | { |
e70236a8 JB |
3818 | return 333000; |
3819 | } | |
79e53945 | 3820 | |
e70236a8 JB |
3821 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
3822 | { | |
3823 | return 200000; | |
3824 | } | |
79e53945 | 3825 | |
e70236a8 JB |
3826 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
3827 | { | |
3828 | u16 gcfgc = 0; | |
79e53945 | 3829 | |
e70236a8 JB |
3830 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
3831 | ||
3832 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
3833 | return 133000; | |
3834 | else { | |
3835 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
3836 | case GC_DISPLAY_CLOCK_333_MHZ: | |
3837 | return 333000; | |
3838 | default: | |
3839 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
3840 | return 190000; | |
79e53945 | 3841 | } |
e70236a8 JB |
3842 | } |
3843 | } | |
3844 | ||
3845 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
3846 | { | |
3847 | return 266000; | |
3848 | } | |
3849 | ||
3850 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
3851 | { | |
3852 | u16 hpllcc = 0; | |
3853 | /* Assume that the hardware is in the high speed state. This | |
3854 | * should be the default. | |
3855 | */ | |
3856 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
3857 | case GC_CLOCK_133_200: | |
3858 | case GC_CLOCK_100_200: | |
3859 | return 200000; | |
3860 | case GC_CLOCK_166_250: | |
3861 | return 250000; | |
3862 | case GC_CLOCK_100_133: | |
79e53945 | 3863 | return 133000; |
e70236a8 | 3864 | } |
79e53945 | 3865 | |
e70236a8 JB |
3866 | /* Shouldn't happen */ |
3867 | return 0; | |
3868 | } | |
79e53945 | 3869 | |
e70236a8 JB |
3870 | static int i830_get_display_clock_speed(struct drm_device *dev) |
3871 | { | |
3872 | return 133000; | |
79e53945 JB |
3873 | } |
3874 | ||
2c07245f ZW |
3875 | struct fdi_m_n { |
3876 | u32 tu; | |
3877 | u32 gmch_m; | |
3878 | u32 gmch_n; | |
3879 | u32 link_m; | |
3880 | u32 link_n; | |
3881 | }; | |
3882 | ||
3883 | static void | |
3884 | fdi_reduce_ratio(u32 *num, u32 *den) | |
3885 | { | |
3886 | while (*num > 0xffffff || *den > 0xffffff) { | |
3887 | *num >>= 1; | |
3888 | *den >>= 1; | |
3889 | } | |
3890 | } | |
3891 | ||
2c07245f | 3892 | static void |
f2b115e6 AJ |
3893 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
3894 | int link_clock, struct fdi_m_n *m_n) | |
2c07245f | 3895 | { |
2c07245f ZW |
3896 | m_n->tu = 64; /* default size */ |
3897 | ||
22ed1113 CW |
3898 | /* BUG_ON(pixel_clock > INT_MAX / 36); */ |
3899 | m_n->gmch_m = bits_per_pixel * pixel_clock; | |
3900 | m_n->gmch_n = link_clock * nlanes * 8; | |
2c07245f ZW |
3901 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); |
3902 | ||
22ed1113 CW |
3903 | m_n->link_m = pixel_clock; |
3904 | m_n->link_n = link_clock; | |
2c07245f ZW |
3905 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); |
3906 | } | |
3907 | ||
a7615030 CW |
3908 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
3909 | { | |
72bbe58c KP |
3910 | if (i915_panel_use_ssc >= 0) |
3911 | return i915_panel_use_ssc != 0; | |
3912 | return dev_priv->lvds_use_ssc | |
435793df | 3913 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
3914 | } |
3915 | ||
5a354204 JB |
3916 | /** |
3917 | * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send | |
3918 | * @crtc: CRTC structure | |
3b5c78a3 | 3919 | * @mode: requested mode |
5a354204 JB |
3920 | * |
3921 | * A pipe may be connected to one or more outputs. Based on the depth of the | |
3922 | * attached framebuffer, choose a good color depth to use on the pipe. | |
3923 | * | |
3924 | * If possible, match the pipe depth to the fb depth. In some cases, this | |
3925 | * isn't ideal, because the connected output supports a lesser or restricted | |
3926 | * set of depths. Resolve that here: | |
3927 | * LVDS typically supports only 6bpc, so clamp down in that case | |
3928 | * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc | |
3929 | * Displays may support a restricted set as well, check EDID and clamp as | |
3930 | * appropriate. | |
3b5c78a3 | 3931 | * DP may want to dither down to 6bpc to fit larger modes |
5a354204 JB |
3932 | * |
3933 | * RETURNS: | |
3934 | * Dithering requirement (i.e. false if display bpc and pipe bpc match, | |
3935 | * true if they don't match). | |
3936 | */ | |
3937 | static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, | |
94352cf9 | 3938 | struct drm_framebuffer *fb, |
3b5c78a3 AJ |
3939 | unsigned int *pipe_bpp, |
3940 | struct drm_display_mode *mode) | |
5a354204 JB |
3941 | { |
3942 | struct drm_device *dev = crtc->dev; | |
3943 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5a354204 | 3944 | struct drm_connector *connector; |
6c2b7c12 | 3945 | struct intel_encoder *intel_encoder; |
5a354204 JB |
3946 | unsigned int display_bpc = UINT_MAX, bpc; |
3947 | ||
3948 | /* Walk the encoders & connectors on this crtc, get min bpc */ | |
6c2b7c12 | 3949 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5a354204 JB |
3950 | |
3951 | if (intel_encoder->type == INTEL_OUTPUT_LVDS) { | |
3952 | unsigned int lvds_bpc; | |
3953 | ||
3954 | if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == | |
3955 | LVDS_A3_POWER_UP) | |
3956 | lvds_bpc = 8; | |
3957 | else | |
3958 | lvds_bpc = 6; | |
3959 | ||
3960 | if (lvds_bpc < display_bpc) { | |
82820490 | 3961 | DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc, lvds_bpc); |
5a354204 JB |
3962 | display_bpc = lvds_bpc; |
3963 | } | |
3964 | continue; | |
3965 | } | |
3966 | ||
5a354204 JB |
3967 | /* Not one of the known troublemakers, check the EDID */ |
3968 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
3969 | head) { | |
6c2b7c12 | 3970 | if (connector->encoder != &intel_encoder->base) |
5a354204 JB |
3971 | continue; |
3972 | ||
62ac41a6 JB |
3973 | /* Don't use an invalid EDID bpc value */ |
3974 | if (connector->display_info.bpc && | |
3975 | connector->display_info.bpc < display_bpc) { | |
82820490 | 3976 | DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc, connector->display_info.bpc); |
5a354204 JB |
3977 | display_bpc = connector->display_info.bpc; |
3978 | } | |
3979 | } | |
3980 | ||
3981 | /* | |
3982 | * HDMI is either 12 or 8, so if the display lets 10bpc sneak | |
3983 | * through, clamp it down. (Note: >12bpc will be caught below.) | |
3984 | */ | |
3985 | if (intel_encoder->type == INTEL_OUTPUT_HDMI) { | |
3986 | if (display_bpc > 8 && display_bpc < 12) { | |
82820490 | 3987 | DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n"); |
5a354204 JB |
3988 | display_bpc = 12; |
3989 | } else { | |
82820490 | 3990 | DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n"); |
5a354204 JB |
3991 | display_bpc = 8; |
3992 | } | |
3993 | } | |
3994 | } | |
3995 | ||
3b5c78a3 AJ |
3996 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
3997 | DRM_DEBUG_KMS("Dithering DP to 6bpc\n"); | |
3998 | display_bpc = 6; | |
3999 | } | |
4000 | ||
5a354204 JB |
4001 | /* |
4002 | * We could just drive the pipe at the highest bpc all the time and | |
4003 | * enable dithering as needed, but that costs bandwidth. So choose | |
4004 | * the minimum value that expresses the full color range of the fb but | |
4005 | * also stays within the max display bpc discovered above. | |
4006 | */ | |
4007 | ||
94352cf9 | 4008 | switch (fb->depth) { |
5a354204 JB |
4009 | case 8: |
4010 | bpc = 8; /* since we go through a colormap */ | |
4011 | break; | |
4012 | case 15: | |
4013 | case 16: | |
4014 | bpc = 6; /* min is 18bpp */ | |
4015 | break; | |
4016 | case 24: | |
578393cd | 4017 | bpc = 8; |
5a354204 JB |
4018 | break; |
4019 | case 30: | |
578393cd | 4020 | bpc = 10; |
5a354204 JB |
4021 | break; |
4022 | case 48: | |
578393cd | 4023 | bpc = 12; |
5a354204 JB |
4024 | break; |
4025 | default: | |
4026 | DRM_DEBUG("unsupported depth, assuming 24 bits\n"); | |
4027 | bpc = min((unsigned int)8, display_bpc); | |
4028 | break; | |
4029 | } | |
4030 | ||
578393cd KP |
4031 | display_bpc = min(display_bpc, bpc); |
4032 | ||
82820490 AJ |
4033 | DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n", |
4034 | bpc, display_bpc); | |
5a354204 | 4035 | |
578393cd | 4036 | *pipe_bpp = display_bpc * 3; |
5a354204 JB |
4037 | |
4038 | return display_bpc != bpc; | |
4039 | } | |
4040 | ||
a0c4da24 JB |
4041 | static int vlv_get_refclk(struct drm_crtc *crtc) |
4042 | { | |
4043 | struct drm_device *dev = crtc->dev; | |
4044 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4045 | int refclk = 27000; /* for DP & HDMI */ | |
4046 | ||
4047 | return 100000; /* only one validated so far */ | |
4048 | ||
4049 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
4050 | refclk = 96000; | |
4051 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4052 | if (intel_panel_use_ssc(dev_priv)) | |
4053 | refclk = 100000; | |
4054 | else | |
4055 | refclk = 96000; | |
4056 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { | |
4057 | refclk = 100000; | |
4058 | } | |
4059 | ||
4060 | return refclk; | |
4061 | } | |
4062 | ||
c65d77d8 JB |
4063 | static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors) |
4064 | { | |
4065 | struct drm_device *dev = crtc->dev; | |
4066 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4067 | int refclk; | |
4068 | ||
a0c4da24 JB |
4069 | if (IS_VALLEYVIEW(dev)) { |
4070 | refclk = vlv_get_refclk(crtc); | |
4071 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
c65d77d8 JB |
4072 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
4073 | refclk = dev_priv->lvds_ssc_freq * 1000; | |
4074 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
4075 | refclk / 1000); | |
4076 | } else if (!IS_GEN2(dev)) { | |
4077 | refclk = 96000; | |
4078 | } else { | |
4079 | refclk = 48000; | |
4080 | } | |
4081 | ||
4082 | return refclk; | |
4083 | } | |
4084 | ||
4085 | static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode *adjusted_mode, | |
4086 | intel_clock_t *clock) | |
4087 | { | |
4088 | /* SDVO TV has fixed PLL values depend on its clock range, | |
4089 | this mirrors vbios setting. */ | |
4090 | if (adjusted_mode->clock >= 100000 | |
4091 | && adjusted_mode->clock < 140500) { | |
4092 | clock->p1 = 2; | |
4093 | clock->p2 = 10; | |
4094 | clock->n = 3; | |
4095 | clock->m1 = 16; | |
4096 | clock->m2 = 8; | |
4097 | } else if (adjusted_mode->clock >= 140500 | |
4098 | && adjusted_mode->clock <= 200000) { | |
4099 | clock->p1 = 1; | |
4100 | clock->p2 = 10; | |
4101 | clock->n = 6; | |
4102 | clock->m1 = 12; | |
4103 | clock->m2 = 8; | |
4104 | } | |
4105 | } | |
4106 | ||
a7516a05 JB |
4107 | static void i9xx_update_pll_dividers(struct drm_crtc *crtc, |
4108 | intel_clock_t *clock, | |
4109 | intel_clock_t *reduced_clock) | |
4110 | { | |
4111 | struct drm_device *dev = crtc->dev; | |
4112 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4113 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4114 | int pipe = intel_crtc->pipe; | |
4115 | u32 fp, fp2 = 0; | |
4116 | ||
4117 | if (IS_PINEVIEW(dev)) { | |
4118 | fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2; | |
4119 | if (reduced_clock) | |
4120 | fp2 = (1 << reduced_clock->n) << 16 | | |
4121 | reduced_clock->m1 << 8 | reduced_clock->m2; | |
4122 | } else { | |
4123 | fp = clock->n << 16 | clock->m1 << 8 | clock->m2; | |
4124 | if (reduced_clock) | |
4125 | fp2 = reduced_clock->n << 16 | reduced_clock->m1 << 8 | | |
4126 | reduced_clock->m2; | |
4127 | } | |
4128 | ||
4129 | I915_WRITE(FP0(pipe), fp); | |
4130 | ||
4131 | intel_crtc->lowfreq_avail = false; | |
4132 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4133 | reduced_clock && i915_powersave) { | |
4134 | I915_WRITE(FP1(pipe), fp2); | |
4135 | intel_crtc->lowfreq_avail = true; | |
4136 | } else { | |
4137 | I915_WRITE(FP1(pipe), fp); | |
4138 | } | |
4139 | } | |
4140 | ||
93e537a1 DV |
4141 | static void intel_update_lvds(struct drm_crtc *crtc, intel_clock_t *clock, |
4142 | struct drm_display_mode *adjusted_mode) | |
4143 | { | |
4144 | struct drm_device *dev = crtc->dev; | |
4145 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4146 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4147 | int pipe = intel_crtc->pipe; | |
284d5df5 | 4148 | u32 temp; |
93e537a1 DV |
4149 | |
4150 | temp = I915_READ(LVDS); | |
4151 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; | |
4152 | if (pipe == 1) { | |
4153 | temp |= LVDS_PIPEB_SELECT; | |
4154 | } else { | |
4155 | temp &= ~LVDS_PIPEB_SELECT; | |
4156 | } | |
4157 | /* set the corresponsding LVDS_BORDER bit */ | |
4158 | temp |= dev_priv->lvds_border_bits; | |
4159 | /* Set the B0-B3 data pairs corresponding to whether we're going to | |
4160 | * set the DPLLs for dual-channel mode or not. | |
4161 | */ | |
4162 | if (clock->p2 == 7) | |
4163 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
4164 | else | |
4165 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); | |
4166 | ||
4167 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
4168 | * appropriately here, but we need to look more thoroughly into how | |
4169 | * panels behave in the two modes. | |
4170 | */ | |
4171 | /* set the dithering flag on LVDS as needed */ | |
4172 | if (INTEL_INFO(dev)->gen >= 4) { | |
4173 | if (dev_priv->lvds_dither) | |
4174 | temp |= LVDS_ENABLE_DITHER; | |
4175 | else | |
4176 | temp &= ~LVDS_ENABLE_DITHER; | |
4177 | } | |
284d5df5 | 4178 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
93e537a1 | 4179 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 4180 | temp |= LVDS_HSYNC_POLARITY; |
93e537a1 | 4181 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 4182 | temp |= LVDS_VSYNC_POLARITY; |
93e537a1 DV |
4183 | I915_WRITE(LVDS, temp); |
4184 | } | |
4185 | ||
a0c4da24 JB |
4186 | static void vlv_update_pll(struct drm_crtc *crtc, |
4187 | struct drm_display_mode *mode, | |
4188 | struct drm_display_mode *adjusted_mode, | |
4189 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
2a8f64ca | 4190 | int num_connectors) |
a0c4da24 JB |
4191 | { |
4192 | struct drm_device *dev = crtc->dev; | |
4193 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4194 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4195 | int pipe = intel_crtc->pipe; | |
4196 | u32 dpll, mdiv, pdiv; | |
4197 | u32 bestn, bestm1, bestm2, bestp1, bestp2; | |
2a8f64ca VP |
4198 | bool is_sdvo; |
4199 | u32 temp; | |
4200 | ||
4201 | is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) || | |
4202 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
a0c4da24 | 4203 | |
2a8f64ca VP |
4204 | dpll = DPLL_VGA_MODE_DIS; |
4205 | dpll |= DPLL_EXT_BUFFER_ENABLE_VLV; | |
4206 | dpll |= DPLL_REFA_CLK_ENABLE_VLV; | |
4207 | dpll |= DPLL_INTEGRATED_CLOCK_VLV; | |
4208 | ||
4209 | I915_WRITE(DPLL(pipe), dpll); | |
4210 | POSTING_READ(DPLL(pipe)); | |
a0c4da24 JB |
4211 | |
4212 | bestn = clock->n; | |
4213 | bestm1 = clock->m1; | |
4214 | bestm2 = clock->m2; | |
4215 | bestp1 = clock->p1; | |
4216 | bestp2 = clock->p2; | |
4217 | ||
2a8f64ca VP |
4218 | /* |
4219 | * In Valleyview PLL and program lane counter registers are exposed | |
4220 | * through DPIO interface | |
4221 | */ | |
a0c4da24 JB |
4222 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); |
4223 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
4224 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
4225 | mdiv |= (1 << DPIO_POST_DIV_SHIFT); | |
4226 | mdiv |= (1 << DPIO_K_SHIFT); | |
4227 | mdiv |= DPIO_ENABLE_CALIBRATION; | |
4228 | intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv); | |
4229 | ||
4230 | intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), 0x01000000); | |
4231 | ||
2a8f64ca | 4232 | pdiv = (1 << DPIO_REFSEL_OVERRIDE) | (5 << DPIO_PLL_MODESEL_SHIFT) | |
a0c4da24 | 4233 | (3 << DPIO_BIAS_CURRENT_CTL_SHIFT) | (1<<20) | |
2a8f64ca VP |
4234 | (7 << DPIO_PLL_REFCLK_SEL_SHIFT) | (8 << DPIO_DRIVER_CTL_SHIFT) | |
4235 | (5 << DPIO_CLK_BIAS_CTL_SHIFT); | |
a0c4da24 JB |
4236 | intel_dpio_write(dev_priv, DPIO_REFSFR(pipe), pdiv); |
4237 | ||
2a8f64ca | 4238 | intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), 0x005f003b); |
a0c4da24 JB |
4239 | |
4240 | dpll |= DPLL_VCO_ENABLE; | |
4241 | I915_WRITE(DPLL(pipe), dpll); | |
4242 | POSTING_READ(DPLL(pipe)); | |
4243 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) | |
4244 | DRM_ERROR("DPLL %d failed to lock\n", pipe); | |
4245 | ||
2a8f64ca VP |
4246 | intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x620); |
4247 | ||
4248 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4249 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
4250 | ||
4251 | I915_WRITE(DPLL(pipe), dpll); | |
4252 | ||
4253 | /* Wait for the clocks to stabilize. */ | |
4254 | POSTING_READ(DPLL(pipe)); | |
4255 | udelay(150); | |
a0c4da24 | 4256 | |
2a8f64ca VP |
4257 | temp = 0; |
4258 | if (is_sdvo) { | |
4259 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
a0c4da24 JB |
4260 | if (temp > 1) |
4261 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
4262 | else | |
4263 | temp = 0; | |
a0c4da24 | 4264 | } |
2a8f64ca VP |
4265 | I915_WRITE(DPLL_MD(pipe), temp); |
4266 | POSTING_READ(DPLL_MD(pipe)); | |
a0c4da24 | 4267 | |
2a8f64ca VP |
4268 | /* Now program lane control registers */ |
4269 | if(intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) | |
4270 | || intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
4271 | { | |
4272 | temp = 0x1000C4; | |
4273 | if(pipe == 1) | |
4274 | temp |= (1 << 21); | |
4275 | intel_dpio_write(dev_priv, DPIO_DATA_CHANNEL1, temp); | |
4276 | } | |
4277 | if(intel_pipe_has_type(crtc,INTEL_OUTPUT_EDP)) | |
4278 | { | |
4279 | temp = 0x1000C4; | |
4280 | if(pipe == 1) | |
4281 | temp |= (1 << 21); | |
4282 | intel_dpio_write(dev_priv, DPIO_DATA_CHANNEL2, temp); | |
4283 | } | |
a0c4da24 JB |
4284 | } |
4285 | ||
eb1cbe48 DV |
4286 | static void i9xx_update_pll(struct drm_crtc *crtc, |
4287 | struct drm_display_mode *mode, | |
4288 | struct drm_display_mode *adjusted_mode, | |
4289 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
4290 | int num_connectors) | |
4291 | { | |
4292 | struct drm_device *dev = crtc->dev; | |
4293 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4294 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4295 | int pipe = intel_crtc->pipe; | |
4296 | u32 dpll; | |
4297 | bool is_sdvo; | |
4298 | ||
2a8f64ca VP |
4299 | i9xx_update_pll_dividers(crtc, clock, reduced_clock); |
4300 | ||
eb1cbe48 DV |
4301 | is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) || |
4302 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
4303 | ||
4304 | dpll = DPLL_VGA_MODE_DIS; | |
4305 | ||
4306 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4307 | dpll |= DPLLB_MODE_LVDS; | |
4308 | else | |
4309 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
4310 | if (is_sdvo) { | |
4311 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4312 | if (pixel_multiplier > 1) { | |
4313 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) | |
4314 | dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; | |
4315 | } | |
4316 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4317 | } | |
4318 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4319 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4320 | ||
4321 | /* compute bitmask from p1 value */ | |
4322 | if (IS_PINEVIEW(dev)) | |
4323 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
4324 | else { | |
4325 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4326 | if (IS_G4X(dev) && reduced_clock) | |
4327 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4328 | } | |
4329 | switch (clock->p2) { | |
4330 | case 5: | |
4331 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4332 | break; | |
4333 | case 7: | |
4334 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4335 | break; | |
4336 | case 10: | |
4337 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4338 | break; | |
4339 | case 14: | |
4340 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4341 | break; | |
4342 | } | |
4343 | if (INTEL_INFO(dev)->gen >= 4) | |
4344 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
4345 | ||
4346 | if (is_sdvo && intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4347 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
4348 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4349 | /* XXX: just matching BIOS for now */ | |
4350 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
4351 | dpll |= 3; | |
4352 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4353 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
4354 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4355 | else | |
4356 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4357 | ||
4358 | dpll |= DPLL_VCO_ENABLE; | |
4359 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4360 | POSTING_READ(DPLL(pipe)); | |
4361 | udelay(150); | |
4362 | ||
4363 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
4364 | * This is an exception to the general rule that mode_set doesn't turn | |
4365 | * things on. | |
4366 | */ | |
4367 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4368 | intel_update_lvds(crtc, clock, adjusted_mode); | |
4369 | ||
4370 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4371 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
4372 | ||
4373 | I915_WRITE(DPLL(pipe), dpll); | |
4374 | ||
4375 | /* Wait for the clocks to stabilize. */ | |
4376 | POSTING_READ(DPLL(pipe)); | |
4377 | udelay(150); | |
4378 | ||
4379 | if (INTEL_INFO(dev)->gen >= 4) { | |
4380 | u32 temp = 0; | |
4381 | if (is_sdvo) { | |
4382 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4383 | if (temp > 1) | |
4384 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
4385 | else | |
4386 | temp = 0; | |
4387 | } | |
4388 | I915_WRITE(DPLL_MD(pipe), temp); | |
4389 | } else { | |
4390 | /* The pixel multiplier can only be updated once the | |
4391 | * DPLL is enabled and the clocks are stable. | |
4392 | * | |
4393 | * So write it again. | |
4394 | */ | |
4395 | I915_WRITE(DPLL(pipe), dpll); | |
4396 | } | |
4397 | } | |
4398 | ||
4399 | static void i8xx_update_pll(struct drm_crtc *crtc, | |
4400 | struct drm_display_mode *adjusted_mode, | |
2a8f64ca | 4401 | intel_clock_t *clock, intel_clock_t *reduced_clock, |
eb1cbe48 DV |
4402 | int num_connectors) |
4403 | { | |
4404 | struct drm_device *dev = crtc->dev; | |
4405 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4406 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4407 | int pipe = intel_crtc->pipe; | |
4408 | u32 dpll; | |
4409 | ||
2a8f64ca VP |
4410 | i9xx_update_pll_dividers(crtc, clock, reduced_clock); |
4411 | ||
eb1cbe48 DV |
4412 | dpll = DPLL_VGA_MODE_DIS; |
4413 | ||
4414 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4415 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4416 | } else { | |
4417 | if (clock->p1 == 2) | |
4418 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
4419 | else | |
4420 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4421 | if (clock->p2 == 4) | |
4422 | dpll |= PLL_P2_DIVIDE_BY_4; | |
4423 | } | |
4424 | ||
4425 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4426 | /* XXX: just matching BIOS for now */ | |
4427 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
4428 | dpll |= 3; | |
4429 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4430 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
4431 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4432 | else | |
4433 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4434 | ||
4435 | dpll |= DPLL_VCO_ENABLE; | |
4436 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4437 | POSTING_READ(DPLL(pipe)); | |
4438 | udelay(150); | |
4439 | ||
eb1cbe48 DV |
4440 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
4441 | * This is an exception to the general rule that mode_set doesn't turn | |
4442 | * things on. | |
4443 | */ | |
4444 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4445 | intel_update_lvds(crtc, clock, adjusted_mode); | |
4446 | ||
5b5896e4 DV |
4447 | I915_WRITE(DPLL(pipe), dpll); |
4448 | ||
4449 | /* Wait for the clocks to stabilize. */ | |
4450 | POSTING_READ(DPLL(pipe)); | |
4451 | udelay(150); | |
4452 | ||
eb1cbe48 DV |
4453 | /* The pixel multiplier can only be updated once the |
4454 | * DPLL is enabled and the clocks are stable. | |
4455 | * | |
4456 | * So write it again. | |
4457 | */ | |
4458 | I915_WRITE(DPLL(pipe), dpll); | |
4459 | } | |
4460 | ||
b0e77b9c PZ |
4461 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc, |
4462 | struct drm_display_mode *mode, | |
4463 | struct drm_display_mode *adjusted_mode) | |
4464 | { | |
4465 | struct drm_device *dev = intel_crtc->base.dev; | |
4466 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4467 | enum pipe pipe = intel_crtc->pipe; | |
4468 | uint32_t vsyncshift; | |
4469 | ||
4470 | if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { | |
4471 | /* the chip adds 2 halflines automatically */ | |
4472 | adjusted_mode->crtc_vtotal -= 1; | |
4473 | adjusted_mode->crtc_vblank_end -= 1; | |
4474 | vsyncshift = adjusted_mode->crtc_hsync_start | |
4475 | - adjusted_mode->crtc_htotal / 2; | |
4476 | } else { | |
4477 | vsyncshift = 0; | |
4478 | } | |
4479 | ||
4480 | if (INTEL_INFO(dev)->gen > 3) | |
4481 | I915_WRITE(VSYNCSHIFT(pipe), vsyncshift); | |
4482 | ||
4483 | I915_WRITE(HTOTAL(pipe), | |
4484 | (adjusted_mode->crtc_hdisplay - 1) | | |
4485 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
4486 | I915_WRITE(HBLANK(pipe), | |
4487 | (adjusted_mode->crtc_hblank_start - 1) | | |
4488 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
4489 | I915_WRITE(HSYNC(pipe), | |
4490 | (adjusted_mode->crtc_hsync_start - 1) | | |
4491 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
4492 | ||
4493 | I915_WRITE(VTOTAL(pipe), | |
4494 | (adjusted_mode->crtc_vdisplay - 1) | | |
4495 | ((adjusted_mode->crtc_vtotal - 1) << 16)); | |
4496 | I915_WRITE(VBLANK(pipe), | |
4497 | (adjusted_mode->crtc_vblank_start - 1) | | |
4498 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); | |
4499 | I915_WRITE(VSYNC(pipe), | |
4500 | (adjusted_mode->crtc_vsync_start - 1) | | |
4501 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
4502 | ||
4503 | /* pipesrc controls the size that is scaled from, which should | |
4504 | * always be the user's requested size. | |
4505 | */ | |
4506 | I915_WRITE(PIPESRC(pipe), | |
4507 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
4508 | } | |
4509 | ||
f564048e EA |
4510 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
4511 | struct drm_display_mode *mode, | |
4512 | struct drm_display_mode *adjusted_mode, | |
4513 | int x, int y, | |
94352cf9 | 4514 | struct drm_framebuffer *fb) |
79e53945 JB |
4515 | { |
4516 | struct drm_device *dev = crtc->dev; | |
4517 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4518 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4519 | int pipe = intel_crtc->pipe; | |
80824003 | 4520 | int plane = intel_crtc->plane; |
c751ce4f | 4521 | int refclk, num_connectors = 0; |
652c393a | 4522 | intel_clock_t clock, reduced_clock; |
b0e77b9c | 4523 | u32 dspcntr, pipeconf; |
eb1cbe48 DV |
4524 | bool ok, has_reduced_clock = false, is_sdvo = false; |
4525 | bool is_lvds = false, is_tv = false, is_dp = false; | |
5eddb70b | 4526 | struct intel_encoder *encoder; |
d4906093 | 4527 | const intel_limit_t *limit; |
5c3b82e2 | 4528 | int ret; |
79e53945 | 4529 | |
6c2b7c12 | 4530 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5eddb70b | 4531 | switch (encoder->type) { |
79e53945 JB |
4532 | case INTEL_OUTPUT_LVDS: |
4533 | is_lvds = true; | |
4534 | break; | |
4535 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 4536 | case INTEL_OUTPUT_HDMI: |
79e53945 | 4537 | is_sdvo = true; |
5eddb70b | 4538 | if (encoder->needs_tv_clock) |
e2f0ba97 | 4539 | is_tv = true; |
79e53945 | 4540 | break; |
79e53945 JB |
4541 | case INTEL_OUTPUT_TVOUT: |
4542 | is_tv = true; | |
4543 | break; | |
a4fc5ed6 KP |
4544 | case INTEL_OUTPUT_DISPLAYPORT: |
4545 | is_dp = true; | |
4546 | break; | |
79e53945 | 4547 | } |
43565a06 | 4548 | |
c751ce4f | 4549 | num_connectors++; |
79e53945 JB |
4550 | } |
4551 | ||
c65d77d8 | 4552 | refclk = i9xx_get_refclk(crtc, num_connectors); |
79e53945 | 4553 | |
d4906093 ML |
4554 | /* |
4555 | * Returns a set of divisors for the desired target clock with the given | |
4556 | * refclk, or FALSE. The returned values represent the clock equation: | |
4557 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4558 | */ | |
1b894b59 | 4559 | limit = intel_limit(crtc, refclk); |
cec2f356 SP |
4560 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
4561 | &clock); | |
79e53945 JB |
4562 | if (!ok) { |
4563 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 4564 | return -EINVAL; |
79e53945 JB |
4565 | } |
4566 | ||
cda4b7d3 | 4567 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4568 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4569 | |
ddc9003c | 4570 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4571 | /* |
4572 | * Ensure we match the reduced clock's P to the target clock. | |
4573 | * If the clocks don't match, we can't switch the display clock | |
4574 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4575 | * downclock feature. | |
4576 | */ | |
ddc9003c | 4577 | has_reduced_clock = limit->find_pll(limit, crtc, |
5eddb70b CW |
4578 | dev_priv->lvds_downclock, |
4579 | refclk, | |
cec2f356 | 4580 | &clock, |
5eddb70b | 4581 | &reduced_clock); |
7026d4ac ZW |
4582 | } |
4583 | ||
c65d77d8 JB |
4584 | if (is_sdvo && is_tv) |
4585 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock); | |
7026d4ac | 4586 | |
eb1cbe48 | 4587 | if (IS_GEN2(dev)) |
2a8f64ca VP |
4588 | i8xx_update_pll(crtc, adjusted_mode, &clock, |
4589 | has_reduced_clock ? &reduced_clock : NULL, | |
4590 | num_connectors); | |
a0c4da24 | 4591 | else if (IS_VALLEYVIEW(dev)) |
2a8f64ca VP |
4592 | vlv_update_pll(crtc, mode, adjusted_mode, &clock, |
4593 | has_reduced_clock ? &reduced_clock : NULL, | |
4594 | num_connectors); | |
79e53945 | 4595 | else |
eb1cbe48 DV |
4596 | i9xx_update_pll(crtc, mode, adjusted_mode, &clock, |
4597 | has_reduced_clock ? &reduced_clock : NULL, | |
4598 | num_connectors); | |
79e53945 JB |
4599 | |
4600 | /* setup pipeconf */ | |
5eddb70b | 4601 | pipeconf = I915_READ(PIPECONF(pipe)); |
79e53945 JB |
4602 | |
4603 | /* Set up the display plane register */ | |
4604 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4605 | ||
929c77fb EA |
4606 | if (pipe == 0) |
4607 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; | |
4608 | else | |
4609 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
79e53945 | 4610 | |
a6c45cf0 | 4611 | if (pipe == 0 && INTEL_INFO(dev)->gen < 4) { |
79e53945 JB |
4612 | /* Enable pixel doubling when the dot clock is > 90% of the (display) |
4613 | * core speed. | |
4614 | * | |
4615 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
4616 | * pipe == 0 check? | |
4617 | */ | |
e70236a8 JB |
4618 | if (mode->clock > |
4619 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
5eddb70b | 4620 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
79e53945 | 4621 | else |
5eddb70b | 4622 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; |
79e53945 JB |
4623 | } |
4624 | ||
3b5c78a3 AJ |
4625 | /* default to 8bpc */ |
4626 | pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN); | |
4627 | if (is_dp) { | |
0c96c65b | 4628 | if (adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
3b5c78a3 AJ |
4629 | pipeconf |= PIPECONF_BPP_6 | |
4630 | PIPECONF_DITHER_EN | | |
4631 | PIPECONF_DITHER_TYPE_SP; | |
4632 | } | |
4633 | } | |
4634 | ||
19c03924 GB |
4635 | if (IS_VALLEYVIEW(dev) && intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { |
4636 | if (adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { | |
4637 | pipeconf |= PIPECONF_BPP_6 | | |
4638 | PIPECONF_ENABLE | | |
4639 | I965_PIPECONF_ACTIVE; | |
4640 | } | |
4641 | } | |
4642 | ||
28c97730 | 4643 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
79e53945 JB |
4644 | drm_mode_debug_printmodeline(mode); |
4645 | ||
a7516a05 JB |
4646 | if (HAS_PIPE_CXSR(dev)) { |
4647 | if (intel_crtc->lowfreq_avail) { | |
28c97730 | 4648 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
652c393a | 4649 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
a7516a05 | 4650 | } else { |
28c97730 | 4651 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
652c393a JB |
4652 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
4653 | } | |
4654 | } | |
4655 | ||
617cf884 | 4656 | pipeconf &= ~PIPECONF_INTERLACE_MASK; |
dbb02575 | 4657 | if (!IS_GEN2(dev) && |
b0e77b9c | 4658 | adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) |
734b4157 | 4659 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
b0e77b9c | 4660 | else |
617cf884 | 4661 | pipeconf |= PIPECONF_PROGRESSIVE; |
734b4157 | 4662 | |
b0e77b9c | 4663 | intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); |
5eddb70b CW |
4664 | |
4665 | /* pipesrc and dspsize control the size that is scaled from, | |
4666 | * which should always be the user's requested size. | |
79e53945 | 4667 | */ |
929c77fb EA |
4668 | I915_WRITE(DSPSIZE(plane), |
4669 | ((mode->vdisplay - 1) << 16) | | |
4670 | (mode->hdisplay - 1)); | |
4671 | I915_WRITE(DSPPOS(plane), 0); | |
2c07245f | 4672 | |
f564048e EA |
4673 | I915_WRITE(PIPECONF(pipe), pipeconf); |
4674 | POSTING_READ(PIPECONF(pipe)); | |
929c77fb | 4675 | intel_enable_pipe(dev_priv, pipe, false); |
f564048e EA |
4676 | |
4677 | intel_wait_for_vblank(dev, pipe); | |
4678 | ||
f564048e EA |
4679 | I915_WRITE(DSPCNTR(plane), dspcntr); |
4680 | POSTING_READ(DSPCNTR(plane)); | |
4681 | ||
94352cf9 | 4682 | ret = intel_pipe_set_base(crtc, x, y, fb); |
f564048e EA |
4683 | |
4684 | intel_update_watermarks(dev); | |
4685 | ||
f564048e EA |
4686 | return ret; |
4687 | } | |
4688 | ||
9fb526db KP |
4689 | /* |
4690 | * Initialize reference clocks when the driver loads | |
4691 | */ | |
4692 | void ironlake_init_pch_refclk(struct drm_device *dev) | |
13d83a67 JB |
4693 | { |
4694 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4695 | struct drm_mode_config *mode_config = &dev->mode_config; | |
13d83a67 | 4696 | struct intel_encoder *encoder; |
13d83a67 JB |
4697 | u32 temp; |
4698 | bool has_lvds = false; | |
199e5d79 KP |
4699 | bool has_cpu_edp = false; |
4700 | bool has_pch_edp = false; | |
4701 | bool has_panel = false; | |
99eb6a01 KP |
4702 | bool has_ck505 = false; |
4703 | bool can_ssc = false; | |
13d83a67 JB |
4704 | |
4705 | /* We need to take the global config into account */ | |
199e5d79 KP |
4706 | list_for_each_entry(encoder, &mode_config->encoder_list, |
4707 | base.head) { | |
4708 | switch (encoder->type) { | |
4709 | case INTEL_OUTPUT_LVDS: | |
4710 | has_panel = true; | |
4711 | has_lvds = true; | |
4712 | break; | |
4713 | case INTEL_OUTPUT_EDP: | |
4714 | has_panel = true; | |
4715 | if (intel_encoder_is_pch_edp(&encoder->base)) | |
4716 | has_pch_edp = true; | |
4717 | else | |
4718 | has_cpu_edp = true; | |
4719 | break; | |
13d83a67 JB |
4720 | } |
4721 | } | |
4722 | ||
99eb6a01 KP |
4723 | if (HAS_PCH_IBX(dev)) { |
4724 | has_ck505 = dev_priv->display_clock_mode; | |
4725 | can_ssc = has_ck505; | |
4726 | } else { | |
4727 | has_ck505 = false; | |
4728 | can_ssc = true; | |
4729 | } | |
4730 | ||
4731 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n", | |
4732 | has_panel, has_lvds, has_pch_edp, has_cpu_edp, | |
4733 | has_ck505); | |
13d83a67 JB |
4734 | |
4735 | /* Ironlake: try to setup display ref clock before DPLL | |
4736 | * enabling. This is only under driver's control after | |
4737 | * PCH B stepping, previous chipset stepping should be | |
4738 | * ignoring this setting. | |
4739 | */ | |
4740 | temp = I915_READ(PCH_DREF_CONTROL); | |
4741 | /* Always enable nonspread source */ | |
4742 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; | |
13d83a67 | 4743 | |
99eb6a01 KP |
4744 | if (has_ck505) |
4745 | temp |= DREF_NONSPREAD_CK505_ENABLE; | |
4746 | else | |
4747 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; | |
13d83a67 | 4748 | |
199e5d79 KP |
4749 | if (has_panel) { |
4750 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4751 | temp |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 4752 | |
199e5d79 | 4753 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 4754 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4755 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
13d83a67 | 4756 | temp |= DREF_SSC1_ENABLE; |
e77166b5 DV |
4757 | } else |
4758 | temp &= ~DREF_SSC1_ENABLE; | |
199e5d79 KP |
4759 | |
4760 | /* Get SSC going before enabling the outputs */ | |
4761 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4762 | POSTING_READ(PCH_DREF_CONTROL); | |
4763 | udelay(200); | |
4764 | ||
13d83a67 JB |
4765 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
4766 | ||
4767 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 4768 | if (has_cpu_edp) { |
99eb6a01 | 4769 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4770 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
13d83a67 | 4771 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
199e5d79 | 4772 | } |
13d83a67 JB |
4773 | else |
4774 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
199e5d79 KP |
4775 | } else |
4776 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4777 | ||
4778 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4779 | POSTING_READ(PCH_DREF_CONTROL); | |
4780 | udelay(200); | |
4781 | } else { | |
4782 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
4783 | ||
4784 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
4785 | ||
4786 | /* Turn off CPU output */ | |
4787 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4788 | ||
4789 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4790 | POSTING_READ(PCH_DREF_CONTROL); | |
4791 | udelay(200); | |
4792 | ||
4793 | /* Turn off the SSC source */ | |
4794 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4795 | temp |= DREF_SSC_SOURCE_DISABLE; | |
4796 | ||
4797 | /* Turn off SSC1 */ | |
4798 | temp &= ~ DREF_SSC1_ENABLE; | |
4799 | ||
13d83a67 JB |
4800 | I915_WRITE(PCH_DREF_CONTROL, temp); |
4801 | POSTING_READ(PCH_DREF_CONTROL); | |
4802 | udelay(200); | |
4803 | } | |
4804 | } | |
4805 | ||
d9d444cb JB |
4806 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
4807 | { | |
4808 | struct drm_device *dev = crtc->dev; | |
4809 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4810 | struct intel_encoder *encoder; | |
d9d444cb JB |
4811 | struct intel_encoder *edp_encoder = NULL; |
4812 | int num_connectors = 0; | |
4813 | bool is_lvds = false; | |
4814 | ||
6c2b7c12 | 4815 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
d9d444cb JB |
4816 | switch (encoder->type) { |
4817 | case INTEL_OUTPUT_LVDS: | |
4818 | is_lvds = true; | |
4819 | break; | |
4820 | case INTEL_OUTPUT_EDP: | |
4821 | edp_encoder = encoder; | |
4822 | break; | |
4823 | } | |
4824 | num_connectors++; | |
4825 | } | |
4826 | ||
4827 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
4828 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
4829 | dev_priv->lvds_ssc_freq); | |
4830 | return dev_priv->lvds_ssc_freq * 1000; | |
4831 | } | |
4832 | ||
4833 | return 120000; | |
4834 | } | |
4835 | ||
c8203565 PZ |
4836 | static void ironlake_set_pipeconf(struct drm_crtc *crtc, |
4837 | struct drm_display_mode *adjusted_mode, | |
4838 | bool dither) | |
4839 | { | |
4840 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
4841 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4842 | int pipe = intel_crtc->pipe; | |
4843 | uint32_t val; | |
4844 | ||
4845 | val = I915_READ(PIPECONF(pipe)); | |
4846 | ||
4847 | val &= ~PIPE_BPC_MASK; | |
4848 | switch (intel_crtc->bpp) { | |
4849 | case 18: | |
4850 | val |= PIPE_6BPC; | |
4851 | break; | |
4852 | case 24: | |
4853 | val |= PIPE_8BPC; | |
4854 | break; | |
4855 | case 30: | |
4856 | val |= PIPE_10BPC; | |
4857 | break; | |
4858 | case 36: | |
4859 | val |= PIPE_12BPC; | |
4860 | break; | |
4861 | default: | |
cc769b62 PZ |
4862 | /* Case prevented by intel_choose_pipe_bpp_dither. */ |
4863 | BUG(); | |
c8203565 PZ |
4864 | } |
4865 | ||
4866 | val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
4867 | if (dither) | |
4868 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); | |
4869 | ||
4870 | val &= ~PIPECONF_INTERLACE_MASK; | |
4871 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) | |
4872 | val |= PIPECONF_INTERLACED_ILK; | |
4873 | else | |
4874 | val |= PIPECONF_PROGRESSIVE; | |
4875 | ||
4876 | I915_WRITE(PIPECONF(pipe), val); | |
4877 | POSTING_READ(PIPECONF(pipe)); | |
4878 | } | |
4879 | ||
ee2b0b38 PZ |
4880 | static void haswell_set_pipeconf(struct drm_crtc *crtc, |
4881 | struct drm_display_mode *adjusted_mode, | |
4882 | bool dither) | |
4883 | { | |
4884 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
4885 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4886 | int pipe = intel_crtc->pipe; | |
4887 | uint32_t val; | |
4888 | ||
4889 | val = I915_READ(PIPECONF(pipe)); | |
4890 | ||
4891 | val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
4892 | if (dither) | |
4893 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); | |
4894 | ||
4895 | val &= ~PIPECONF_INTERLACE_MASK_HSW; | |
4896 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) | |
4897 | val |= PIPECONF_INTERLACED_ILK; | |
4898 | else | |
4899 | val |= PIPECONF_PROGRESSIVE; | |
4900 | ||
4901 | I915_WRITE(PIPECONF(pipe), val); | |
4902 | POSTING_READ(PIPECONF(pipe)); | |
4903 | } | |
4904 | ||
6591c6e4 PZ |
4905 | static bool ironlake_compute_clocks(struct drm_crtc *crtc, |
4906 | struct drm_display_mode *adjusted_mode, | |
4907 | intel_clock_t *clock, | |
4908 | bool *has_reduced_clock, | |
4909 | intel_clock_t *reduced_clock) | |
4910 | { | |
4911 | struct drm_device *dev = crtc->dev; | |
4912 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4913 | struct intel_encoder *intel_encoder; | |
4914 | int refclk; | |
4915 | const intel_limit_t *limit; | |
4916 | bool ret, is_sdvo = false, is_tv = false, is_lvds = false; | |
4917 | ||
4918 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { | |
4919 | switch (intel_encoder->type) { | |
4920 | case INTEL_OUTPUT_LVDS: | |
4921 | is_lvds = true; | |
4922 | break; | |
4923 | case INTEL_OUTPUT_SDVO: | |
4924 | case INTEL_OUTPUT_HDMI: | |
4925 | is_sdvo = true; | |
4926 | if (intel_encoder->needs_tv_clock) | |
4927 | is_tv = true; | |
4928 | break; | |
4929 | case INTEL_OUTPUT_TVOUT: | |
4930 | is_tv = true; | |
4931 | break; | |
4932 | } | |
4933 | } | |
4934 | ||
4935 | refclk = ironlake_get_refclk(crtc); | |
4936 | ||
4937 | /* | |
4938 | * Returns a set of divisors for the desired target clock with the given | |
4939 | * refclk, or FALSE. The returned values represent the clock equation: | |
4940 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4941 | */ | |
4942 | limit = intel_limit(crtc, refclk); | |
4943 | ret = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, | |
4944 | clock); | |
4945 | if (!ret) | |
4946 | return false; | |
4947 | ||
4948 | if (is_lvds && dev_priv->lvds_downclock_avail) { | |
4949 | /* | |
4950 | * Ensure we match the reduced clock's P to the target clock. | |
4951 | * If the clocks don't match, we can't switch the display clock | |
4952 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4953 | * downclock feature. | |
4954 | */ | |
4955 | *has_reduced_clock = limit->find_pll(limit, crtc, | |
4956 | dev_priv->lvds_downclock, | |
4957 | refclk, | |
4958 | clock, | |
4959 | reduced_clock); | |
4960 | } | |
4961 | ||
4962 | if (is_sdvo && is_tv) | |
4963 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, clock); | |
4964 | ||
4965 | return true; | |
4966 | } | |
4967 | ||
f48d8f23 PZ |
4968 | static void ironlake_set_m_n(struct drm_crtc *crtc, |
4969 | struct drm_display_mode *mode, | |
4970 | struct drm_display_mode *adjusted_mode) | |
4971 | { | |
4972 | struct drm_device *dev = crtc->dev; | |
4973 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4974 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4975 | enum pipe pipe = intel_crtc->pipe; | |
4976 | struct intel_encoder *intel_encoder, *edp_encoder = NULL; | |
4977 | struct fdi_m_n m_n = {0}; | |
4978 | int target_clock, pixel_multiplier, lane, link_bw; | |
4979 | bool is_dp = false, is_cpu_edp = false; | |
4980 | ||
4981 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { | |
4982 | switch (intel_encoder->type) { | |
4983 | case INTEL_OUTPUT_DISPLAYPORT: | |
4984 | is_dp = true; | |
4985 | break; | |
4986 | case INTEL_OUTPUT_EDP: | |
4987 | is_dp = true; | |
4988 | if (!intel_encoder_is_pch_edp(&intel_encoder->base)) | |
4989 | is_cpu_edp = true; | |
4990 | edp_encoder = intel_encoder; | |
4991 | break; | |
4992 | } | |
4993 | } | |
4994 | ||
4995 | /* FDI link */ | |
4996 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4997 | lane = 0; | |
4998 | /* CPU eDP doesn't require FDI link, so just set DP M/N | |
4999 | according to current link config */ | |
5000 | if (is_cpu_edp) { | |
5001 | intel_edp_link_config(edp_encoder, &lane, &link_bw); | |
5002 | } else { | |
5003 | /* FDI is a binary signal running at ~2.7GHz, encoding | |
5004 | * each output octet as 10 bits. The actual frequency | |
5005 | * is stored as a divider into a 100MHz clock, and the | |
5006 | * mode pixel clock is stored in units of 1KHz. | |
5007 | * Hence the bw of each lane in terms of the mode signal | |
5008 | * is: | |
5009 | */ | |
5010 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
5011 | } | |
5012 | ||
5013 | /* [e]DP over FDI requires target mode clock instead of link clock. */ | |
5014 | if (edp_encoder) | |
5015 | target_clock = intel_edp_target_clock(edp_encoder, mode); | |
5016 | else if (is_dp) | |
5017 | target_clock = mode->clock; | |
5018 | else | |
5019 | target_clock = adjusted_mode->clock; | |
5020 | ||
5021 | if (!lane) { | |
5022 | /* | |
5023 | * Account for spread spectrum to avoid | |
5024 | * oversubscribing the link. Max center spread | |
5025 | * is 2.5%; use 5% for safety's sake. | |
5026 | */ | |
5027 | u32 bps = target_clock * intel_crtc->bpp * 21 / 20; | |
5028 | lane = bps / (link_bw * 8) + 1; | |
5029 | } | |
5030 | ||
5031 | intel_crtc->fdi_lanes = lane; | |
5032 | ||
5033 | if (pixel_multiplier > 1) | |
5034 | link_bw *= pixel_multiplier; | |
5035 | ironlake_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw, | |
5036 | &m_n); | |
5037 | ||
5038 | I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m); | |
5039 | I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n); | |
5040 | I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m); | |
5041 | I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n); | |
5042 | } | |
5043 | ||
de13a2e3 PZ |
5044 | static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, |
5045 | struct drm_display_mode *adjusted_mode, | |
5046 | intel_clock_t *clock, u32 fp) | |
79e53945 | 5047 | { |
de13a2e3 | 5048 | struct drm_crtc *crtc = &intel_crtc->base; |
79e53945 JB |
5049 | struct drm_device *dev = crtc->dev; |
5050 | struct drm_i915_private *dev_priv = dev->dev_private; | |
de13a2e3 PZ |
5051 | struct intel_encoder *intel_encoder; |
5052 | uint32_t dpll; | |
5053 | int factor, pixel_multiplier, num_connectors = 0; | |
5054 | bool is_lvds = false, is_sdvo = false, is_tv = false; | |
5055 | bool is_dp = false, is_cpu_edp = false; | |
79e53945 | 5056 | |
de13a2e3 PZ |
5057 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5058 | switch (intel_encoder->type) { | |
79e53945 JB |
5059 | case INTEL_OUTPUT_LVDS: |
5060 | is_lvds = true; | |
5061 | break; | |
5062 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 5063 | case INTEL_OUTPUT_HDMI: |
79e53945 | 5064 | is_sdvo = true; |
de13a2e3 | 5065 | if (intel_encoder->needs_tv_clock) |
e2f0ba97 | 5066 | is_tv = true; |
79e53945 | 5067 | break; |
79e53945 JB |
5068 | case INTEL_OUTPUT_TVOUT: |
5069 | is_tv = true; | |
5070 | break; | |
a4fc5ed6 KP |
5071 | case INTEL_OUTPUT_DISPLAYPORT: |
5072 | is_dp = true; | |
5073 | break; | |
32f9d658 | 5074 | case INTEL_OUTPUT_EDP: |
e3aef172 | 5075 | is_dp = true; |
de13a2e3 | 5076 | if (!intel_encoder_is_pch_edp(&intel_encoder->base)) |
e3aef172 | 5077 | is_cpu_edp = true; |
32f9d658 | 5078 | break; |
79e53945 | 5079 | } |
43565a06 | 5080 | |
c751ce4f | 5081 | num_connectors++; |
79e53945 JB |
5082 | } |
5083 | ||
c1858123 | 5084 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
5085 | factor = 21; |
5086 | if (is_lvds) { | |
5087 | if ((intel_panel_use_ssc(dev_priv) && | |
5088 | dev_priv->lvds_ssc_freq == 100) || | |
5089 | (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) | |
5090 | factor = 25; | |
5091 | } else if (is_sdvo && is_tv) | |
5092 | factor = 20; | |
c1858123 | 5093 | |
de13a2e3 | 5094 | if (clock->m < factor * clock->n) |
8febb297 | 5095 | fp |= FP_CB_TUNE; |
2c07245f | 5096 | |
5eddb70b | 5097 | dpll = 0; |
2c07245f | 5098 | |
a07d6787 EA |
5099 | if (is_lvds) |
5100 | dpll |= DPLLB_MODE_LVDS; | |
5101 | else | |
5102 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
5103 | if (is_sdvo) { | |
de13a2e3 | 5104 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
a07d6787 EA |
5105 | if (pixel_multiplier > 1) { |
5106 | dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
79e53945 | 5107 | } |
a07d6787 EA |
5108 | dpll |= DPLL_DVO_HIGH_SPEED; |
5109 | } | |
e3aef172 | 5110 | if (is_dp && !is_cpu_edp) |
a07d6787 | 5111 | dpll |= DPLL_DVO_HIGH_SPEED; |
79e53945 | 5112 | |
a07d6787 | 5113 | /* compute bitmask from p1 value */ |
de13a2e3 | 5114 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
a07d6787 | 5115 | /* also FPA1 */ |
de13a2e3 | 5116 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
a07d6787 | 5117 | |
de13a2e3 | 5118 | switch (clock->p2) { |
a07d6787 EA |
5119 | case 5: |
5120 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
5121 | break; | |
5122 | case 7: | |
5123 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
5124 | break; | |
5125 | case 10: | |
5126 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
5127 | break; | |
5128 | case 14: | |
5129 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
5130 | break; | |
79e53945 JB |
5131 | } |
5132 | ||
43565a06 KH |
5133 | if (is_sdvo && is_tv) |
5134 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
5135 | else if (is_tv) | |
79e53945 | 5136 | /* XXX: just matching BIOS for now */ |
43565a06 | 5137 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
79e53945 | 5138 | dpll |= 3; |
a7615030 | 5139 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 5140 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
5141 | else |
5142 | dpll |= PLL_REF_INPUT_DREFCLK; | |
5143 | ||
de13a2e3 PZ |
5144 | return dpll; |
5145 | } | |
5146 | ||
5147 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, | |
5148 | struct drm_display_mode *mode, | |
5149 | struct drm_display_mode *adjusted_mode, | |
5150 | int x, int y, | |
5151 | struct drm_framebuffer *fb) | |
5152 | { | |
5153 | struct drm_device *dev = crtc->dev; | |
5154 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5155 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5156 | int pipe = intel_crtc->pipe; | |
5157 | int plane = intel_crtc->plane; | |
5158 | int num_connectors = 0; | |
5159 | intel_clock_t clock, reduced_clock; | |
5160 | u32 dpll, fp = 0, fp2 = 0; | |
e2f12b07 PZ |
5161 | bool ok, has_reduced_clock = false; |
5162 | bool is_lvds = false, is_dp = false, is_cpu_edp = false; | |
de13a2e3 PZ |
5163 | struct intel_encoder *encoder; |
5164 | u32 temp; | |
5165 | int ret; | |
5166 | bool dither; | |
de13a2e3 PZ |
5167 | |
5168 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
5169 | switch (encoder->type) { | |
5170 | case INTEL_OUTPUT_LVDS: | |
5171 | is_lvds = true; | |
5172 | break; | |
de13a2e3 PZ |
5173 | case INTEL_OUTPUT_DISPLAYPORT: |
5174 | is_dp = true; | |
5175 | break; | |
5176 | case INTEL_OUTPUT_EDP: | |
5177 | is_dp = true; | |
e2f12b07 | 5178 | if (!intel_encoder_is_pch_edp(&encoder->base)) |
de13a2e3 PZ |
5179 | is_cpu_edp = true; |
5180 | break; | |
5181 | } | |
5182 | ||
5183 | num_connectors++; | |
5184 | } | |
5185 | ||
5dc5298b PZ |
5186 | WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)), |
5187 | "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev)); | |
5188 | ||
de13a2e3 PZ |
5189 | ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock, |
5190 | &has_reduced_clock, &reduced_clock); | |
5191 | if (!ok) { | |
5192 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5193 | return -EINVAL; | |
5194 | } | |
5195 | ||
5196 | /* Ensure that the cursor is valid for the new mode before changing... */ | |
5197 | intel_crtc_update_cursor(crtc, true); | |
5198 | ||
5199 | /* determine panel color depth */ | |
5200 | dither = intel_choose_pipe_bpp_dither(crtc, fb, &intel_crtc->bpp, mode); | |
5201 | if (is_lvds && dev_priv->lvds_dither) | |
5202 | dither = true; | |
5203 | ||
5204 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; | |
5205 | if (has_reduced_clock) | |
5206 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
5207 | reduced_clock.m2; | |
5208 | ||
5209 | dpll = ironlake_compute_dpll(intel_crtc, adjusted_mode, &clock, fp); | |
5210 | ||
f7cb34d4 | 5211 | DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); |
79e53945 JB |
5212 | drm_mode_debug_printmodeline(mode); |
5213 | ||
5dc5298b PZ |
5214 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ |
5215 | if (!is_cpu_edp) { | |
ee7b9f93 | 5216 | struct intel_pch_pll *pll; |
4b645f14 | 5217 | |
ee7b9f93 JB |
5218 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); |
5219 | if (pll == NULL) { | |
5220 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n", | |
5221 | pipe); | |
4b645f14 JB |
5222 | return -EINVAL; |
5223 | } | |
ee7b9f93 JB |
5224 | } else |
5225 | intel_put_pch_pll(intel_crtc); | |
79e53945 JB |
5226 | |
5227 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
5228 | * This is an exception to the general rule that mode_set doesn't turn | |
5229 | * things on. | |
5230 | */ | |
5231 | if (is_lvds) { | |
fae14981 | 5232 | temp = I915_READ(PCH_LVDS); |
5eddb70b | 5233 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
7885d205 JB |
5234 | if (HAS_PCH_CPT(dev)) { |
5235 | temp &= ~PORT_TRANS_SEL_MASK; | |
4b645f14 | 5236 | temp |= PORT_TRANS_SEL_CPT(pipe); |
7885d205 JB |
5237 | } else { |
5238 | if (pipe == 1) | |
5239 | temp |= LVDS_PIPEB_SELECT; | |
5240 | else | |
5241 | temp &= ~LVDS_PIPEB_SELECT; | |
5242 | } | |
4b645f14 | 5243 | |
a3e17eb8 | 5244 | /* set the corresponsding LVDS_BORDER bit */ |
5eddb70b | 5245 | temp |= dev_priv->lvds_border_bits; |
79e53945 JB |
5246 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
5247 | * set the DPLLs for dual-channel mode or not. | |
5248 | */ | |
5249 | if (clock.p2 == 7) | |
5eddb70b | 5250 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
79e53945 | 5251 | else |
5eddb70b | 5252 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
79e53945 JB |
5253 | |
5254 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
5255 | * appropriately here, but we need to look more thoroughly into how | |
5256 | * panels behave in the two modes. | |
5257 | */ | |
284d5df5 | 5258 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
aa9b500d | 5259 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 5260 | temp |= LVDS_HSYNC_POLARITY; |
aa9b500d | 5261 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 5262 | temp |= LVDS_VSYNC_POLARITY; |
fae14981 | 5263 | I915_WRITE(PCH_LVDS, temp); |
79e53945 | 5264 | } |
434ed097 | 5265 | |
e3aef172 | 5266 | if (is_dp && !is_cpu_edp) { |
a4fc5ed6 | 5267 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
8febb297 | 5268 | } else { |
8db9d77b | 5269 | /* For non-DP output, clear any trans DP clock recovery setting.*/ |
9db4a9c7 JB |
5270 | I915_WRITE(TRANSDATA_M1(pipe), 0); |
5271 | I915_WRITE(TRANSDATA_N1(pipe), 0); | |
5272 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); | |
5273 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); | |
8db9d77b | 5274 | } |
79e53945 | 5275 | |
ee7b9f93 JB |
5276 | if (intel_crtc->pch_pll) { |
5277 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5eddb70b | 5278 | |
32f9d658 | 5279 | /* Wait for the clocks to stabilize. */ |
ee7b9f93 | 5280 | POSTING_READ(intel_crtc->pch_pll->pll_reg); |
32f9d658 ZW |
5281 | udelay(150); |
5282 | ||
8febb297 EA |
5283 | /* The pixel multiplier can only be updated once the |
5284 | * DPLL is enabled and the clocks are stable. | |
5285 | * | |
5286 | * So write it again. | |
5287 | */ | |
ee7b9f93 | 5288 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); |
79e53945 | 5289 | } |
79e53945 | 5290 | |
5eddb70b | 5291 | intel_crtc->lowfreq_avail = false; |
ee7b9f93 | 5292 | if (intel_crtc->pch_pll) { |
4b645f14 | 5293 | if (is_lvds && has_reduced_clock && i915_powersave) { |
ee7b9f93 | 5294 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); |
4b645f14 | 5295 | intel_crtc->lowfreq_avail = true; |
4b645f14 | 5296 | } else { |
ee7b9f93 | 5297 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); |
652c393a JB |
5298 | } |
5299 | } | |
5300 | ||
b0e77b9c | 5301 | intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); |
2c07245f | 5302 | |
f48d8f23 | 5303 | ironlake_set_m_n(crtc, mode, adjusted_mode); |
2c07245f | 5304 | |
e3aef172 | 5305 | if (is_cpu_edp) |
8febb297 | 5306 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
2c07245f | 5307 | |
c8203565 | 5308 | ironlake_set_pipeconf(crtc, adjusted_mode, dither); |
79e53945 | 5309 | |
9d0498a2 | 5310 | intel_wait_for_vblank(dev, pipe); |
79e53945 | 5311 | |
a1f9e77e PZ |
5312 | /* Set up the display plane register */ |
5313 | I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE); | |
b24e7179 | 5314 | POSTING_READ(DSPCNTR(plane)); |
79e53945 | 5315 | |
94352cf9 | 5316 | ret = intel_pipe_set_base(crtc, x, y, fb); |
7662c8bd SL |
5317 | |
5318 | intel_update_watermarks(dev); | |
5319 | ||
1f8eeabf ED |
5320 | intel_update_linetime_watermarks(dev, pipe, adjusted_mode); |
5321 | ||
1f803ee5 | 5322 | return ret; |
79e53945 JB |
5323 | } |
5324 | ||
09b4ddf9 PZ |
5325 | static int haswell_crtc_mode_set(struct drm_crtc *crtc, |
5326 | struct drm_display_mode *mode, | |
5327 | struct drm_display_mode *adjusted_mode, | |
5328 | int x, int y, | |
5329 | struct drm_framebuffer *fb) | |
5330 | { | |
5331 | struct drm_device *dev = crtc->dev; | |
5332 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5333 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5334 | int pipe = intel_crtc->pipe; | |
5335 | int plane = intel_crtc->plane; | |
5336 | int num_connectors = 0; | |
5337 | intel_clock_t clock, reduced_clock; | |
5dc5298b | 5338 | u32 dpll = 0, fp = 0, fp2 = 0; |
09b4ddf9 PZ |
5339 | bool ok, has_reduced_clock = false; |
5340 | bool is_lvds = false, is_dp = false, is_cpu_edp = false; | |
5341 | struct intel_encoder *encoder; | |
5342 | u32 temp; | |
5343 | int ret; | |
5344 | bool dither; | |
5345 | ||
5346 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
5347 | switch (encoder->type) { | |
5348 | case INTEL_OUTPUT_LVDS: | |
5349 | is_lvds = true; | |
5350 | break; | |
5351 | case INTEL_OUTPUT_DISPLAYPORT: | |
5352 | is_dp = true; | |
5353 | break; | |
5354 | case INTEL_OUTPUT_EDP: | |
5355 | is_dp = true; | |
5356 | if (!intel_encoder_is_pch_edp(&encoder->base)) | |
5357 | is_cpu_edp = true; | |
5358 | break; | |
5359 | } | |
5360 | ||
5361 | num_connectors++; | |
5362 | } | |
5363 | ||
5dc5298b PZ |
5364 | /* We are not sure yet this won't happen. */ |
5365 | WARN(!HAS_PCH_LPT(dev), "Unexpected PCH type %d\n", | |
5366 | INTEL_PCH_TYPE(dev)); | |
5367 | ||
5368 | WARN(num_connectors != 1, "%d connectors attached to pipe %c\n", | |
5369 | num_connectors, pipe_name(pipe)); | |
5370 | ||
1ce42920 PZ |
5371 | WARN_ON(I915_READ(PIPECONF(pipe)) & |
5372 | (PIPECONF_ENABLE | I965_PIPECONF_ACTIVE)); | |
5373 | ||
5374 | WARN_ON(I915_READ(DSPCNTR(plane)) & DISPLAY_PLANE_ENABLE); | |
5375 | ||
6441ab5f PZ |
5376 | if (!intel_ddi_pll_mode_set(crtc, adjusted_mode->clock)) |
5377 | return -EINVAL; | |
5378 | ||
5dc5298b PZ |
5379 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { |
5380 | ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock, | |
5381 | &has_reduced_clock, | |
5382 | &reduced_clock); | |
5383 | if (!ok) { | |
5384 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5385 | return -EINVAL; | |
5386 | } | |
09b4ddf9 PZ |
5387 | } |
5388 | ||
5389 | /* Ensure that the cursor is valid for the new mode before changing... */ | |
5390 | intel_crtc_update_cursor(crtc, true); | |
5391 | ||
5392 | /* determine panel color depth */ | |
5393 | dither = intel_choose_pipe_bpp_dither(crtc, fb, &intel_crtc->bpp, mode); | |
5394 | if (is_lvds && dev_priv->lvds_dither) | |
5395 | dither = true; | |
5396 | ||
09b4ddf9 PZ |
5397 | DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); |
5398 | drm_mode_debug_printmodeline(mode); | |
5399 | ||
5dc5298b PZ |
5400 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { |
5401 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; | |
5402 | if (has_reduced_clock) | |
5403 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
5404 | reduced_clock.m2; | |
5405 | ||
5406 | dpll = ironlake_compute_dpll(intel_crtc, adjusted_mode, &clock, | |
5407 | fp); | |
5408 | ||
5409 | /* CPU eDP is the only output that doesn't need a PCH PLL of its | |
5410 | * own on pre-Haswell/LPT generation */ | |
5411 | if (!is_cpu_edp) { | |
5412 | struct intel_pch_pll *pll; | |
5413 | ||
5414 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); | |
5415 | if (pll == NULL) { | |
5416 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n", | |
5417 | pipe); | |
5418 | return -EINVAL; | |
5419 | } | |
5420 | } else | |
5421 | intel_put_pch_pll(intel_crtc); | |
09b4ddf9 | 5422 | |
5dc5298b PZ |
5423 | /* The LVDS pin pair needs to be on before the DPLLs are |
5424 | * enabled. This is an exception to the general rule that | |
5425 | * mode_set doesn't turn things on. | |
5426 | */ | |
5427 | if (is_lvds) { | |
5428 | temp = I915_READ(PCH_LVDS); | |
5429 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; | |
5430 | if (HAS_PCH_CPT(dev)) { | |
5431 | temp &= ~PORT_TRANS_SEL_MASK; | |
5432 | temp |= PORT_TRANS_SEL_CPT(pipe); | |
5433 | } else { | |
5434 | if (pipe == 1) | |
5435 | temp |= LVDS_PIPEB_SELECT; | |
5436 | else | |
5437 | temp &= ~LVDS_PIPEB_SELECT; | |
5438 | } | |
09b4ddf9 | 5439 | |
5dc5298b PZ |
5440 | /* set the corresponsding LVDS_BORDER bit */ |
5441 | temp |= dev_priv->lvds_border_bits; | |
5442 | /* Set the B0-B3 data pairs corresponding to whether | |
5443 | * we're going to set the DPLLs for dual-channel mode or | |
5444 | * not. | |
5445 | */ | |
5446 | if (clock.p2 == 7) | |
5447 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
09b4ddf9 | 5448 | else |
5dc5298b PZ |
5449 | temp &= ~(LVDS_B0B3_POWER_UP | |
5450 | LVDS_CLKB_POWER_UP); | |
5451 | ||
5452 | /* It would be nice to set 24 vs 18-bit mode | |
5453 | * (LVDS_A3_POWER_UP) appropriately here, but we need to | |
5454 | * look more thoroughly into how panels behave in the | |
5455 | * two modes. | |
5456 | */ | |
5457 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); | |
5458 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) | |
5459 | temp |= LVDS_HSYNC_POLARITY; | |
5460 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) | |
5461 | temp |= LVDS_VSYNC_POLARITY; | |
5462 | I915_WRITE(PCH_LVDS, temp); | |
09b4ddf9 | 5463 | } |
09b4ddf9 PZ |
5464 | } |
5465 | ||
5466 | if (is_dp && !is_cpu_edp) { | |
5467 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
5468 | } else { | |
5dc5298b PZ |
5469 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { |
5470 | /* For non-DP output, clear any trans DP clock recovery | |
5471 | * setting.*/ | |
5472 | I915_WRITE(TRANSDATA_M1(pipe), 0); | |
5473 | I915_WRITE(TRANSDATA_N1(pipe), 0); | |
5474 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); | |
5475 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); | |
5476 | } | |
09b4ddf9 PZ |
5477 | } |
5478 | ||
5479 | intel_crtc->lowfreq_avail = false; | |
5dc5298b PZ |
5480 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { |
5481 | if (intel_crtc->pch_pll) { | |
5482 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5483 | ||
5484 | /* Wait for the clocks to stabilize. */ | |
5485 | POSTING_READ(intel_crtc->pch_pll->pll_reg); | |
5486 | udelay(150); | |
5487 | ||
5488 | /* The pixel multiplier can only be updated once the | |
5489 | * DPLL is enabled and the clocks are stable. | |
5490 | * | |
5491 | * So write it again. | |
5492 | */ | |
5493 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5494 | } | |
5495 | ||
5496 | if (intel_crtc->pch_pll) { | |
5497 | if (is_lvds && has_reduced_clock && i915_powersave) { | |
5498 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); | |
5499 | intel_crtc->lowfreq_avail = true; | |
5500 | } else { | |
5501 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); | |
5502 | } | |
09b4ddf9 PZ |
5503 | } |
5504 | } | |
5505 | ||
5506 | intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); | |
5507 | ||
1eb8dfec PZ |
5508 | if (!is_dp || is_cpu_edp) |
5509 | ironlake_set_m_n(crtc, mode, adjusted_mode); | |
09b4ddf9 | 5510 | |
5dc5298b PZ |
5511 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) |
5512 | if (is_cpu_edp) | |
5513 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); | |
09b4ddf9 | 5514 | |
ee2b0b38 | 5515 | haswell_set_pipeconf(crtc, adjusted_mode, dither); |
09b4ddf9 | 5516 | |
09b4ddf9 PZ |
5517 | /* Set up the display plane register */ |
5518 | I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE); | |
5519 | POSTING_READ(DSPCNTR(plane)); | |
5520 | ||
5521 | ret = intel_pipe_set_base(crtc, x, y, fb); | |
5522 | ||
5523 | intel_update_watermarks(dev); | |
5524 | ||
5525 | intel_update_linetime_watermarks(dev, pipe, adjusted_mode); | |
5526 | ||
5527 | return ret; | |
5528 | } | |
5529 | ||
f564048e EA |
5530 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
5531 | struct drm_display_mode *mode, | |
5532 | struct drm_display_mode *adjusted_mode, | |
5533 | int x, int y, | |
94352cf9 | 5534 | struct drm_framebuffer *fb) |
f564048e EA |
5535 | { |
5536 | struct drm_device *dev = crtc->dev; | |
5537 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0b701d27 EA |
5538 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5539 | int pipe = intel_crtc->pipe; | |
f564048e EA |
5540 | int ret; |
5541 | ||
0b701d27 | 5542 | drm_vblank_pre_modeset(dev, pipe); |
7662c8bd | 5543 | |
f564048e | 5544 | ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, |
94352cf9 | 5545 | x, y, fb); |
79e53945 | 5546 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 5547 | |
1f803ee5 | 5548 | return ret; |
79e53945 JB |
5549 | } |
5550 | ||
3a9627f4 WF |
5551 | static bool intel_eld_uptodate(struct drm_connector *connector, |
5552 | int reg_eldv, uint32_t bits_eldv, | |
5553 | int reg_elda, uint32_t bits_elda, | |
5554 | int reg_edid) | |
5555 | { | |
5556 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5557 | uint8_t *eld = connector->eld; | |
5558 | uint32_t i; | |
5559 | ||
5560 | i = I915_READ(reg_eldv); | |
5561 | i &= bits_eldv; | |
5562 | ||
5563 | if (!eld[0]) | |
5564 | return !i; | |
5565 | ||
5566 | if (!i) | |
5567 | return false; | |
5568 | ||
5569 | i = I915_READ(reg_elda); | |
5570 | i &= ~bits_elda; | |
5571 | I915_WRITE(reg_elda, i); | |
5572 | ||
5573 | for (i = 0; i < eld[2]; i++) | |
5574 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) | |
5575 | return false; | |
5576 | ||
5577 | return true; | |
5578 | } | |
5579 | ||
e0dac65e WF |
5580 | static void g4x_write_eld(struct drm_connector *connector, |
5581 | struct drm_crtc *crtc) | |
5582 | { | |
5583 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5584 | uint8_t *eld = connector->eld; | |
5585 | uint32_t eldv; | |
5586 | uint32_t len; | |
5587 | uint32_t i; | |
5588 | ||
5589 | i = I915_READ(G4X_AUD_VID_DID); | |
5590 | ||
5591 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) | |
5592 | eldv = G4X_ELDV_DEVCL_DEVBLC; | |
5593 | else | |
5594 | eldv = G4X_ELDV_DEVCTG; | |
5595 | ||
3a9627f4 WF |
5596 | if (intel_eld_uptodate(connector, |
5597 | G4X_AUD_CNTL_ST, eldv, | |
5598 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, | |
5599 | G4X_HDMIW_HDMIEDID)) | |
5600 | return; | |
5601 | ||
e0dac65e WF |
5602 | i = I915_READ(G4X_AUD_CNTL_ST); |
5603 | i &= ~(eldv | G4X_ELD_ADDR); | |
5604 | len = (i >> 9) & 0x1f; /* ELD buffer size */ | |
5605 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
5606 | ||
5607 | if (!eld[0]) | |
5608 | return; | |
5609 | ||
5610 | len = min_t(uint8_t, eld[2], len); | |
5611 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5612 | for (i = 0; i < len; i++) | |
5613 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); | |
5614 | ||
5615 | i = I915_READ(G4X_AUD_CNTL_ST); | |
5616 | i |= eldv; | |
5617 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
5618 | } | |
5619 | ||
83358c85 WX |
5620 | static void haswell_write_eld(struct drm_connector *connector, |
5621 | struct drm_crtc *crtc) | |
5622 | { | |
5623 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5624 | uint8_t *eld = connector->eld; | |
5625 | struct drm_device *dev = crtc->dev; | |
5626 | uint32_t eldv; | |
5627 | uint32_t i; | |
5628 | int len; | |
5629 | int pipe = to_intel_crtc(crtc)->pipe; | |
5630 | int tmp; | |
5631 | ||
5632 | int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe); | |
5633 | int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe); | |
5634 | int aud_config = HSW_AUD_CFG(pipe); | |
5635 | int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD; | |
5636 | ||
5637 | ||
5638 | DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n"); | |
5639 | ||
5640 | /* Audio output enable */ | |
5641 | DRM_DEBUG_DRIVER("HDMI audio: enable codec\n"); | |
5642 | tmp = I915_READ(aud_cntrl_st2); | |
5643 | tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4)); | |
5644 | I915_WRITE(aud_cntrl_st2, tmp); | |
5645 | ||
5646 | /* Wait for 1 vertical blank */ | |
5647 | intel_wait_for_vblank(dev, pipe); | |
5648 | ||
5649 | /* Set ELD valid state */ | |
5650 | tmp = I915_READ(aud_cntrl_st2); | |
5651 | DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp); | |
5652 | tmp |= (AUDIO_ELD_VALID_A << (pipe * 4)); | |
5653 | I915_WRITE(aud_cntrl_st2, tmp); | |
5654 | tmp = I915_READ(aud_cntrl_st2); | |
5655 | DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp); | |
5656 | ||
5657 | /* Enable HDMI mode */ | |
5658 | tmp = I915_READ(aud_config); | |
5659 | DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp); | |
5660 | /* clear N_programing_enable and N_value_index */ | |
5661 | tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE); | |
5662 | I915_WRITE(aud_config, tmp); | |
5663 | ||
5664 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); | |
5665 | ||
5666 | eldv = AUDIO_ELD_VALID_A << (pipe * 4); | |
5667 | ||
5668 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { | |
5669 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
5670 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
5671 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ | |
5672 | } else | |
5673 | I915_WRITE(aud_config, 0); | |
5674 | ||
5675 | if (intel_eld_uptodate(connector, | |
5676 | aud_cntrl_st2, eldv, | |
5677 | aud_cntl_st, IBX_ELD_ADDRESS, | |
5678 | hdmiw_hdmiedid)) | |
5679 | return; | |
5680 | ||
5681 | i = I915_READ(aud_cntrl_st2); | |
5682 | i &= ~eldv; | |
5683 | I915_WRITE(aud_cntrl_st2, i); | |
5684 | ||
5685 | if (!eld[0]) | |
5686 | return; | |
5687 | ||
5688 | i = I915_READ(aud_cntl_st); | |
5689 | i &= ~IBX_ELD_ADDRESS; | |
5690 | I915_WRITE(aud_cntl_st, i); | |
5691 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ | |
5692 | DRM_DEBUG_DRIVER("port num:%d\n", i); | |
5693 | ||
5694 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
5695 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5696 | for (i = 0; i < len; i++) | |
5697 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
5698 | ||
5699 | i = I915_READ(aud_cntrl_st2); | |
5700 | i |= eldv; | |
5701 | I915_WRITE(aud_cntrl_st2, i); | |
5702 | ||
5703 | } | |
5704 | ||
e0dac65e WF |
5705 | static void ironlake_write_eld(struct drm_connector *connector, |
5706 | struct drm_crtc *crtc) | |
5707 | { | |
5708 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5709 | uint8_t *eld = connector->eld; | |
5710 | uint32_t eldv; | |
5711 | uint32_t i; | |
5712 | int len; | |
5713 | int hdmiw_hdmiedid; | |
b6daa025 | 5714 | int aud_config; |
e0dac65e WF |
5715 | int aud_cntl_st; |
5716 | int aud_cntrl_st2; | |
9b138a83 | 5717 | int pipe = to_intel_crtc(crtc)->pipe; |
e0dac65e | 5718 | |
b3f33cbf | 5719 | if (HAS_PCH_IBX(connector->dev)) { |
9b138a83 WX |
5720 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe); |
5721 | aud_config = IBX_AUD_CFG(pipe); | |
5722 | aud_cntl_st = IBX_AUD_CNTL_ST(pipe); | |
1202b4c6 | 5723 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; |
e0dac65e | 5724 | } else { |
9b138a83 WX |
5725 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe); |
5726 | aud_config = CPT_AUD_CFG(pipe); | |
5727 | aud_cntl_st = CPT_AUD_CNTL_ST(pipe); | |
1202b4c6 | 5728 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; |
e0dac65e WF |
5729 | } |
5730 | ||
9b138a83 | 5731 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); |
e0dac65e WF |
5732 | |
5733 | i = I915_READ(aud_cntl_st); | |
9b138a83 | 5734 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ |
e0dac65e WF |
5735 | if (!i) { |
5736 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); | |
5737 | /* operate blindly on all ports */ | |
1202b4c6 WF |
5738 | eldv = IBX_ELD_VALIDB; |
5739 | eldv |= IBX_ELD_VALIDB << 4; | |
5740 | eldv |= IBX_ELD_VALIDB << 8; | |
e0dac65e WF |
5741 | } else { |
5742 | DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i); | |
1202b4c6 | 5743 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
e0dac65e WF |
5744 | } |
5745 | ||
3a9627f4 WF |
5746 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
5747 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
5748 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
b6daa025 WF |
5749 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
5750 | } else | |
5751 | I915_WRITE(aud_config, 0); | |
e0dac65e | 5752 | |
3a9627f4 WF |
5753 | if (intel_eld_uptodate(connector, |
5754 | aud_cntrl_st2, eldv, | |
5755 | aud_cntl_st, IBX_ELD_ADDRESS, | |
5756 | hdmiw_hdmiedid)) | |
5757 | return; | |
5758 | ||
e0dac65e WF |
5759 | i = I915_READ(aud_cntrl_st2); |
5760 | i &= ~eldv; | |
5761 | I915_WRITE(aud_cntrl_st2, i); | |
5762 | ||
5763 | if (!eld[0]) | |
5764 | return; | |
5765 | ||
e0dac65e | 5766 | i = I915_READ(aud_cntl_st); |
1202b4c6 | 5767 | i &= ~IBX_ELD_ADDRESS; |
e0dac65e WF |
5768 | I915_WRITE(aud_cntl_st, i); |
5769 | ||
5770 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
5771 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5772 | for (i = 0; i < len; i++) | |
5773 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
5774 | ||
5775 | i = I915_READ(aud_cntrl_st2); | |
5776 | i |= eldv; | |
5777 | I915_WRITE(aud_cntrl_st2, i); | |
5778 | } | |
5779 | ||
5780 | void intel_write_eld(struct drm_encoder *encoder, | |
5781 | struct drm_display_mode *mode) | |
5782 | { | |
5783 | struct drm_crtc *crtc = encoder->crtc; | |
5784 | struct drm_connector *connector; | |
5785 | struct drm_device *dev = encoder->dev; | |
5786 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5787 | ||
5788 | connector = drm_select_eld(encoder, mode); | |
5789 | if (!connector) | |
5790 | return; | |
5791 | ||
5792 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", | |
5793 | connector->base.id, | |
5794 | drm_get_connector_name(connector), | |
5795 | connector->encoder->base.id, | |
5796 | drm_get_encoder_name(connector->encoder)); | |
5797 | ||
5798 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; | |
5799 | ||
5800 | if (dev_priv->display.write_eld) | |
5801 | dev_priv->display.write_eld(connector, crtc); | |
5802 | } | |
5803 | ||
79e53945 JB |
5804 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
5805 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
5806 | { | |
5807 | struct drm_device *dev = crtc->dev; | |
5808 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5809 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9db4a9c7 | 5810 | int palreg = PALETTE(intel_crtc->pipe); |
79e53945 JB |
5811 | int i; |
5812 | ||
5813 | /* The clocks have to be on to load the palette. */ | |
aed3f09d | 5814 | if (!crtc->enabled || !intel_crtc->active) |
79e53945 JB |
5815 | return; |
5816 | ||
f2b115e6 | 5817 | /* use legacy palette for Ironlake */ |
bad720ff | 5818 | if (HAS_PCH_SPLIT(dev)) |
9db4a9c7 | 5819 | palreg = LGC_PALETTE(intel_crtc->pipe); |
2c07245f | 5820 | |
79e53945 JB |
5821 | for (i = 0; i < 256; i++) { |
5822 | I915_WRITE(palreg + 4 * i, | |
5823 | (intel_crtc->lut_r[i] << 16) | | |
5824 | (intel_crtc->lut_g[i] << 8) | | |
5825 | intel_crtc->lut_b[i]); | |
5826 | } | |
5827 | } | |
5828 | ||
560b85bb CW |
5829 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
5830 | { | |
5831 | struct drm_device *dev = crtc->dev; | |
5832 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5833 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5834 | bool visible = base != 0; | |
5835 | u32 cntl; | |
5836 | ||
5837 | if (intel_crtc->cursor_visible == visible) | |
5838 | return; | |
5839 | ||
9db4a9c7 | 5840 | cntl = I915_READ(_CURACNTR); |
560b85bb CW |
5841 | if (visible) { |
5842 | /* On these chipsets we can only modify the base whilst | |
5843 | * the cursor is disabled. | |
5844 | */ | |
9db4a9c7 | 5845 | I915_WRITE(_CURABASE, base); |
560b85bb CW |
5846 | |
5847 | cntl &= ~(CURSOR_FORMAT_MASK); | |
5848 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ | |
5849 | cntl |= CURSOR_ENABLE | | |
5850 | CURSOR_GAMMA_ENABLE | | |
5851 | CURSOR_FORMAT_ARGB; | |
5852 | } else | |
5853 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
9db4a9c7 | 5854 | I915_WRITE(_CURACNTR, cntl); |
560b85bb CW |
5855 | |
5856 | intel_crtc->cursor_visible = visible; | |
5857 | } | |
5858 | ||
5859 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) | |
5860 | { | |
5861 | struct drm_device *dev = crtc->dev; | |
5862 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5863 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5864 | int pipe = intel_crtc->pipe; | |
5865 | bool visible = base != 0; | |
5866 | ||
5867 | if (intel_crtc->cursor_visible != visible) { | |
548f245b | 5868 | uint32_t cntl = I915_READ(CURCNTR(pipe)); |
560b85bb CW |
5869 | if (base) { |
5870 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
5871 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
5872 | cntl |= pipe << 28; /* Connect to correct pipe */ | |
5873 | } else { | |
5874 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
5875 | cntl |= CURSOR_MODE_DISABLE; | |
5876 | } | |
9db4a9c7 | 5877 | I915_WRITE(CURCNTR(pipe), cntl); |
560b85bb CW |
5878 | |
5879 | intel_crtc->cursor_visible = visible; | |
5880 | } | |
5881 | /* and commit changes on next vblank */ | |
9db4a9c7 | 5882 | I915_WRITE(CURBASE(pipe), base); |
560b85bb CW |
5883 | } |
5884 | ||
65a21cd6 JB |
5885 | static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) |
5886 | { | |
5887 | struct drm_device *dev = crtc->dev; | |
5888 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5889 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5890 | int pipe = intel_crtc->pipe; | |
5891 | bool visible = base != 0; | |
5892 | ||
5893 | if (intel_crtc->cursor_visible != visible) { | |
5894 | uint32_t cntl = I915_READ(CURCNTR_IVB(pipe)); | |
5895 | if (base) { | |
5896 | cntl &= ~CURSOR_MODE; | |
5897 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
5898 | } else { | |
5899 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
5900 | cntl |= CURSOR_MODE_DISABLE; | |
5901 | } | |
5902 | I915_WRITE(CURCNTR_IVB(pipe), cntl); | |
5903 | ||
5904 | intel_crtc->cursor_visible = visible; | |
5905 | } | |
5906 | /* and commit changes on next vblank */ | |
5907 | I915_WRITE(CURBASE_IVB(pipe), base); | |
5908 | } | |
5909 | ||
cda4b7d3 | 5910 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
5911 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
5912 | bool on) | |
cda4b7d3 CW |
5913 | { |
5914 | struct drm_device *dev = crtc->dev; | |
5915 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5916 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5917 | int pipe = intel_crtc->pipe; | |
5918 | int x = intel_crtc->cursor_x; | |
5919 | int y = intel_crtc->cursor_y; | |
560b85bb | 5920 | u32 base, pos; |
cda4b7d3 CW |
5921 | bool visible; |
5922 | ||
5923 | pos = 0; | |
5924 | ||
6b383a7f | 5925 | if (on && crtc->enabled && crtc->fb) { |
cda4b7d3 CW |
5926 | base = intel_crtc->cursor_addr; |
5927 | if (x > (int) crtc->fb->width) | |
5928 | base = 0; | |
5929 | ||
5930 | if (y > (int) crtc->fb->height) | |
5931 | base = 0; | |
5932 | } else | |
5933 | base = 0; | |
5934 | ||
5935 | if (x < 0) { | |
5936 | if (x + intel_crtc->cursor_width < 0) | |
5937 | base = 0; | |
5938 | ||
5939 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
5940 | x = -x; | |
5941 | } | |
5942 | pos |= x << CURSOR_X_SHIFT; | |
5943 | ||
5944 | if (y < 0) { | |
5945 | if (y + intel_crtc->cursor_height < 0) | |
5946 | base = 0; | |
5947 | ||
5948 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
5949 | y = -y; | |
5950 | } | |
5951 | pos |= y << CURSOR_Y_SHIFT; | |
5952 | ||
5953 | visible = base != 0; | |
560b85bb | 5954 | if (!visible && !intel_crtc->cursor_visible) |
cda4b7d3 CW |
5955 | return; |
5956 | ||
0cd83aa9 | 5957 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
65a21cd6 JB |
5958 | I915_WRITE(CURPOS_IVB(pipe), pos); |
5959 | ivb_update_cursor(crtc, base); | |
5960 | } else { | |
5961 | I915_WRITE(CURPOS(pipe), pos); | |
5962 | if (IS_845G(dev) || IS_I865G(dev)) | |
5963 | i845_update_cursor(crtc, base); | |
5964 | else | |
5965 | i9xx_update_cursor(crtc, base); | |
5966 | } | |
cda4b7d3 CW |
5967 | } |
5968 | ||
79e53945 | 5969 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
05394f39 | 5970 | struct drm_file *file, |
79e53945 JB |
5971 | uint32_t handle, |
5972 | uint32_t width, uint32_t height) | |
5973 | { | |
5974 | struct drm_device *dev = crtc->dev; | |
5975 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5976 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
05394f39 | 5977 | struct drm_i915_gem_object *obj; |
cda4b7d3 | 5978 | uint32_t addr; |
3f8bc370 | 5979 | int ret; |
79e53945 | 5980 | |
79e53945 JB |
5981 | /* if we want to turn off the cursor ignore width and height */ |
5982 | if (!handle) { | |
28c97730 | 5983 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 | 5984 | addr = 0; |
05394f39 | 5985 | obj = NULL; |
5004417d | 5986 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 5987 | goto finish; |
79e53945 JB |
5988 | } |
5989 | ||
5990 | /* Currently we only support 64x64 cursors */ | |
5991 | if (width != 64 || height != 64) { | |
5992 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
5993 | return -EINVAL; | |
5994 | } | |
5995 | ||
05394f39 | 5996 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
c8725226 | 5997 | if (&obj->base == NULL) |
79e53945 JB |
5998 | return -ENOENT; |
5999 | ||
05394f39 | 6000 | if (obj->base.size < width * height * 4) { |
79e53945 | 6001 | DRM_ERROR("buffer is to small\n"); |
34b8686e DA |
6002 | ret = -ENOMEM; |
6003 | goto fail; | |
79e53945 JB |
6004 | } |
6005 | ||
71acb5eb | 6006 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 6007 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 6008 | if (!dev_priv->info->cursor_needs_physical) { |
d9e86c0e CW |
6009 | if (obj->tiling_mode) { |
6010 | DRM_ERROR("cursor cannot be tiled\n"); | |
6011 | ret = -EINVAL; | |
6012 | goto fail_locked; | |
6013 | } | |
6014 | ||
2da3b9b9 | 6015 | ret = i915_gem_object_pin_to_display_plane(obj, 0, NULL); |
e7b526bb CW |
6016 | if (ret) { |
6017 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
2da3b9b9 | 6018 | goto fail_locked; |
e7b526bb CW |
6019 | } |
6020 | ||
d9e86c0e CW |
6021 | ret = i915_gem_object_put_fence(obj); |
6022 | if (ret) { | |
2da3b9b9 | 6023 | DRM_ERROR("failed to release fence for cursor"); |
d9e86c0e CW |
6024 | goto fail_unpin; |
6025 | } | |
6026 | ||
05394f39 | 6027 | addr = obj->gtt_offset; |
71acb5eb | 6028 | } else { |
6eeefaf3 | 6029 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
05394f39 | 6030 | ret = i915_gem_attach_phys_object(dev, obj, |
6eeefaf3 CW |
6031 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
6032 | align); | |
71acb5eb DA |
6033 | if (ret) { |
6034 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 6035 | goto fail_locked; |
71acb5eb | 6036 | } |
05394f39 | 6037 | addr = obj->phys_obj->handle->busaddr; |
3f8bc370 KH |
6038 | } |
6039 | ||
a6c45cf0 | 6040 | if (IS_GEN2(dev)) |
14b60391 JB |
6041 | I915_WRITE(CURSIZE, (height << 12) | width); |
6042 | ||
3f8bc370 | 6043 | finish: |
3f8bc370 | 6044 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 6045 | if (dev_priv->info->cursor_needs_physical) { |
05394f39 | 6046 | if (intel_crtc->cursor_bo != obj) |
71acb5eb DA |
6047 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
6048 | } else | |
6049 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
05394f39 | 6050 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
3f8bc370 | 6051 | } |
80824003 | 6052 | |
7f9872e0 | 6053 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
6054 | |
6055 | intel_crtc->cursor_addr = addr; | |
05394f39 | 6056 | intel_crtc->cursor_bo = obj; |
cda4b7d3 CW |
6057 | intel_crtc->cursor_width = width; |
6058 | intel_crtc->cursor_height = height; | |
6059 | ||
6b383a7f | 6060 | intel_crtc_update_cursor(crtc, true); |
3f8bc370 | 6061 | |
79e53945 | 6062 | return 0; |
e7b526bb | 6063 | fail_unpin: |
05394f39 | 6064 | i915_gem_object_unpin(obj); |
7f9872e0 | 6065 | fail_locked: |
34b8686e | 6066 | mutex_unlock(&dev->struct_mutex); |
bc9025bd | 6067 | fail: |
05394f39 | 6068 | drm_gem_object_unreference_unlocked(&obj->base); |
34b8686e | 6069 | return ret; |
79e53945 JB |
6070 | } |
6071 | ||
6072 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
6073 | { | |
79e53945 | 6074 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 6075 | |
cda4b7d3 CW |
6076 | intel_crtc->cursor_x = x; |
6077 | intel_crtc->cursor_y = y; | |
652c393a | 6078 | |
6b383a7f | 6079 | intel_crtc_update_cursor(crtc, true); |
79e53945 JB |
6080 | |
6081 | return 0; | |
6082 | } | |
6083 | ||
6084 | /** Sets the color ramps on behalf of RandR */ | |
6085 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
6086 | u16 blue, int regno) | |
6087 | { | |
6088 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6089 | ||
6090 | intel_crtc->lut_r[regno] = red >> 8; | |
6091 | intel_crtc->lut_g[regno] = green >> 8; | |
6092 | intel_crtc->lut_b[regno] = blue >> 8; | |
6093 | } | |
6094 | ||
b8c00ac5 DA |
6095 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
6096 | u16 *blue, int regno) | |
6097 | { | |
6098 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6099 | ||
6100 | *red = intel_crtc->lut_r[regno] << 8; | |
6101 | *green = intel_crtc->lut_g[regno] << 8; | |
6102 | *blue = intel_crtc->lut_b[regno] << 8; | |
6103 | } | |
6104 | ||
79e53945 | 6105 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 6106 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 6107 | { |
7203425a | 6108 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 6109 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 6110 | |
7203425a | 6111 | for (i = start; i < end; i++) { |
79e53945 JB |
6112 | intel_crtc->lut_r[i] = red[i] >> 8; |
6113 | intel_crtc->lut_g[i] = green[i] >> 8; | |
6114 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
6115 | } | |
6116 | ||
6117 | intel_crtc_load_lut(crtc); | |
6118 | } | |
6119 | ||
6120 | /** | |
6121 | * Get a pipe with a simple mode set on it for doing load-based monitor | |
6122 | * detection. | |
6123 | * | |
6124 | * It will be up to the load-detect code to adjust the pipe as appropriate for | |
c751ce4f | 6125 | * its requirements. The pipe will be connected to no other encoders. |
79e53945 | 6126 | * |
c751ce4f | 6127 | * Currently this code will only succeed if there is a pipe with no encoders |
79e53945 JB |
6128 | * configured for it. In the future, it could choose to temporarily disable |
6129 | * some outputs to free up a pipe for its use. | |
6130 | * | |
6131 | * \return crtc, or NULL if no pipes are available. | |
6132 | */ | |
6133 | ||
6134 | /* VESA 640x480x72Hz mode to set on the pipe */ | |
6135 | static struct drm_display_mode load_detect_mode = { | |
6136 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
6137 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
6138 | }; | |
6139 | ||
d2dff872 CW |
6140 | static struct drm_framebuffer * |
6141 | intel_framebuffer_create(struct drm_device *dev, | |
308e5bcb | 6142 | struct drm_mode_fb_cmd2 *mode_cmd, |
d2dff872 CW |
6143 | struct drm_i915_gem_object *obj) |
6144 | { | |
6145 | struct intel_framebuffer *intel_fb; | |
6146 | int ret; | |
6147 | ||
6148 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
6149 | if (!intel_fb) { | |
6150 | drm_gem_object_unreference_unlocked(&obj->base); | |
6151 | return ERR_PTR(-ENOMEM); | |
6152 | } | |
6153 | ||
6154 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
6155 | if (ret) { | |
6156 | drm_gem_object_unreference_unlocked(&obj->base); | |
6157 | kfree(intel_fb); | |
6158 | return ERR_PTR(ret); | |
6159 | } | |
6160 | ||
6161 | return &intel_fb->base; | |
6162 | } | |
6163 | ||
6164 | static u32 | |
6165 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
6166 | { | |
6167 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
6168 | return ALIGN(pitch, 64); | |
6169 | } | |
6170 | ||
6171 | static u32 | |
6172 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
6173 | { | |
6174 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
6175 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); | |
6176 | } | |
6177 | ||
6178 | static struct drm_framebuffer * | |
6179 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
6180 | struct drm_display_mode *mode, | |
6181 | int depth, int bpp) | |
6182 | { | |
6183 | struct drm_i915_gem_object *obj; | |
308e5bcb | 6184 | struct drm_mode_fb_cmd2 mode_cmd; |
d2dff872 CW |
6185 | |
6186 | obj = i915_gem_alloc_object(dev, | |
6187 | intel_framebuffer_size_for_mode(mode, bpp)); | |
6188 | if (obj == NULL) | |
6189 | return ERR_PTR(-ENOMEM); | |
6190 | ||
6191 | mode_cmd.width = mode->hdisplay; | |
6192 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
6193 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
6194 | bpp); | |
5ca0c34a | 6195 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
6196 | |
6197 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
6198 | } | |
6199 | ||
6200 | static struct drm_framebuffer * | |
6201 | mode_fits_in_fbdev(struct drm_device *dev, | |
6202 | struct drm_display_mode *mode) | |
6203 | { | |
6204 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6205 | struct drm_i915_gem_object *obj; | |
6206 | struct drm_framebuffer *fb; | |
6207 | ||
6208 | if (dev_priv->fbdev == NULL) | |
6209 | return NULL; | |
6210 | ||
6211 | obj = dev_priv->fbdev->ifb.obj; | |
6212 | if (obj == NULL) | |
6213 | return NULL; | |
6214 | ||
6215 | fb = &dev_priv->fbdev->ifb.base; | |
01f2c773 VS |
6216 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
6217 | fb->bits_per_pixel)) | |
d2dff872 CW |
6218 | return NULL; |
6219 | ||
01f2c773 | 6220 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
6221 | return NULL; |
6222 | ||
6223 | return fb; | |
6224 | } | |
6225 | ||
d2434ab7 | 6226 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 6227 | struct drm_display_mode *mode, |
8261b191 | 6228 | struct intel_load_detect_pipe *old) |
79e53945 JB |
6229 | { |
6230 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
6231 | struct intel_encoder *intel_encoder = |
6232 | intel_attached_encoder(connector); | |
79e53945 | 6233 | struct drm_crtc *possible_crtc; |
4ef69c7a | 6234 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
6235 | struct drm_crtc *crtc = NULL; |
6236 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 6237 | struct drm_framebuffer *fb; |
79e53945 JB |
6238 | int i = -1; |
6239 | ||
d2dff872 CW |
6240 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
6241 | connector->base.id, drm_get_connector_name(connector), | |
6242 | encoder->base.id, drm_get_encoder_name(encoder)); | |
6243 | ||
79e53945 JB |
6244 | /* |
6245 | * Algorithm gets a little messy: | |
7a5e4805 | 6246 | * |
79e53945 JB |
6247 | * - if the connector already has an assigned crtc, use it (but make |
6248 | * sure it's on first) | |
7a5e4805 | 6249 | * |
79e53945 JB |
6250 | * - try to find the first unused crtc that can drive this connector, |
6251 | * and use that if we find one | |
79e53945 JB |
6252 | */ |
6253 | ||
6254 | /* See if we already have a CRTC for this connector */ | |
6255 | if (encoder->crtc) { | |
6256 | crtc = encoder->crtc; | |
8261b191 | 6257 | |
24218aac | 6258 | old->dpms_mode = connector->dpms; |
8261b191 CW |
6259 | old->load_detect_temp = false; |
6260 | ||
6261 | /* Make sure the crtc and connector are running */ | |
24218aac DV |
6262 | if (connector->dpms != DRM_MODE_DPMS_ON) |
6263 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); | |
8261b191 | 6264 | |
7173188d | 6265 | return true; |
79e53945 JB |
6266 | } |
6267 | ||
6268 | /* Find an unused one (if possible) */ | |
6269 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
6270 | i++; | |
6271 | if (!(encoder->possible_crtcs & (1 << i))) | |
6272 | continue; | |
6273 | if (!possible_crtc->enabled) { | |
6274 | crtc = possible_crtc; | |
6275 | break; | |
6276 | } | |
79e53945 JB |
6277 | } |
6278 | ||
6279 | /* | |
6280 | * If we didn't find an unused CRTC, don't use any. | |
6281 | */ | |
6282 | if (!crtc) { | |
7173188d CW |
6283 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
6284 | return false; | |
79e53945 JB |
6285 | } |
6286 | ||
fc303101 DV |
6287 | intel_encoder->new_crtc = to_intel_crtc(crtc); |
6288 | to_intel_connector(connector)->new_encoder = intel_encoder; | |
79e53945 JB |
6289 | |
6290 | intel_crtc = to_intel_crtc(crtc); | |
24218aac | 6291 | old->dpms_mode = connector->dpms; |
8261b191 | 6292 | old->load_detect_temp = true; |
d2dff872 | 6293 | old->release_fb = NULL; |
79e53945 | 6294 | |
6492711d CW |
6295 | if (!mode) |
6296 | mode = &load_detect_mode; | |
79e53945 | 6297 | |
d2dff872 CW |
6298 | /* We need a framebuffer large enough to accommodate all accesses |
6299 | * that the plane may generate whilst we perform load detection. | |
6300 | * We can not rely on the fbcon either being present (we get called | |
6301 | * during its initialisation to detect all boot displays, or it may | |
6302 | * not even exist) or that it is large enough to satisfy the | |
6303 | * requested mode. | |
6304 | */ | |
94352cf9 DV |
6305 | fb = mode_fits_in_fbdev(dev, mode); |
6306 | if (fb == NULL) { | |
d2dff872 | 6307 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 DV |
6308 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
6309 | old->release_fb = fb; | |
d2dff872 CW |
6310 | } else |
6311 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 6312 | if (IS_ERR(fb)) { |
d2dff872 | 6313 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
24218aac | 6314 | goto fail; |
79e53945 | 6315 | } |
79e53945 | 6316 | |
94352cf9 | 6317 | if (!intel_set_mode(crtc, mode, 0, 0, fb)) { |
6492711d | 6318 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
6319 | if (old->release_fb) |
6320 | old->release_fb->funcs->destroy(old->release_fb); | |
24218aac | 6321 | goto fail; |
79e53945 | 6322 | } |
7173188d | 6323 | |
79e53945 | 6324 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 6325 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
79e53945 | 6326 | |
7173188d | 6327 | return true; |
24218aac DV |
6328 | fail: |
6329 | connector->encoder = NULL; | |
6330 | encoder->crtc = NULL; | |
24218aac | 6331 | return false; |
79e53945 JB |
6332 | } |
6333 | ||
d2434ab7 | 6334 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
8261b191 | 6335 | struct intel_load_detect_pipe *old) |
79e53945 | 6336 | { |
d2434ab7 DV |
6337 | struct intel_encoder *intel_encoder = |
6338 | intel_attached_encoder(connector); | |
4ef69c7a | 6339 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 | 6340 | |
d2dff872 CW |
6341 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
6342 | connector->base.id, drm_get_connector_name(connector), | |
6343 | encoder->base.id, drm_get_encoder_name(encoder)); | |
6344 | ||
8261b191 | 6345 | if (old->load_detect_temp) { |
fc303101 DV |
6346 | struct drm_crtc *crtc = encoder->crtc; |
6347 | ||
6348 | to_intel_connector(connector)->new_encoder = NULL; | |
6349 | intel_encoder->new_crtc = NULL; | |
6350 | intel_set_mode(crtc, NULL, 0, 0, NULL); | |
d2dff872 CW |
6351 | |
6352 | if (old->release_fb) | |
6353 | old->release_fb->funcs->destroy(old->release_fb); | |
6354 | ||
0622a53c | 6355 | return; |
79e53945 JB |
6356 | } |
6357 | ||
c751ce4f | 6358 | /* Switch crtc and encoder back off if necessary */ |
24218aac DV |
6359 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
6360 | connector->funcs->dpms(connector, old->dpms_mode); | |
79e53945 JB |
6361 | } |
6362 | ||
6363 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
6364 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
6365 | { | |
6366 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6367 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6368 | int pipe = intel_crtc->pipe; | |
548f245b | 6369 | u32 dpll = I915_READ(DPLL(pipe)); |
79e53945 JB |
6370 | u32 fp; |
6371 | intel_clock_t clock; | |
6372 | ||
6373 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
39adb7a5 | 6374 | fp = I915_READ(FP0(pipe)); |
79e53945 | 6375 | else |
39adb7a5 | 6376 | fp = I915_READ(FP1(pipe)); |
79e53945 JB |
6377 | |
6378 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
6379 | if (IS_PINEVIEW(dev)) { |
6380 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
6381 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
6382 | } else { |
6383 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
6384 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
6385 | } | |
6386 | ||
a6c45cf0 | 6387 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
6388 | if (IS_PINEVIEW(dev)) |
6389 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
6390 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
6391 | else |
6392 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
6393 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
6394 | ||
6395 | switch (dpll & DPLL_MODE_MASK) { | |
6396 | case DPLLB_MODE_DAC_SERIAL: | |
6397 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
6398 | 5 : 10; | |
6399 | break; | |
6400 | case DPLLB_MODE_LVDS: | |
6401 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
6402 | 7 : 14; | |
6403 | break; | |
6404 | default: | |
28c97730 | 6405 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
6406 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
6407 | return 0; | |
6408 | } | |
6409 | ||
6410 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 6411 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
6412 | } else { |
6413 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
6414 | ||
6415 | if (is_lvds) { | |
6416 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
6417 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
6418 | clock.p2 = 14; | |
6419 | ||
6420 | if ((dpll & PLL_REF_INPUT_MASK) == | |
6421 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
6422 | /* XXX: might not be 66MHz */ | |
2177832f | 6423 | intel_clock(dev, 66000, &clock); |
79e53945 | 6424 | } else |
2177832f | 6425 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
6426 | } else { |
6427 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
6428 | clock.p1 = 2; | |
6429 | else { | |
6430 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
6431 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
6432 | } | |
6433 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
6434 | clock.p2 = 4; | |
6435 | else | |
6436 | clock.p2 = 2; | |
6437 | ||
2177832f | 6438 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
6439 | } |
6440 | } | |
6441 | ||
6442 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
6443 | * i830PllIsValid() because it relies on the xf86_config connector | |
6444 | * configuration being accurate, which it isn't necessarily. | |
6445 | */ | |
6446 | ||
6447 | return clock.dot; | |
6448 | } | |
6449 | ||
6450 | /** Returns the currently programmed mode of the given pipe. */ | |
6451 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
6452 | struct drm_crtc *crtc) | |
6453 | { | |
548f245b | 6454 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
6455 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6456 | int pipe = intel_crtc->pipe; | |
6457 | struct drm_display_mode *mode; | |
548f245b JB |
6458 | int htot = I915_READ(HTOTAL(pipe)); |
6459 | int hsync = I915_READ(HSYNC(pipe)); | |
6460 | int vtot = I915_READ(VTOTAL(pipe)); | |
6461 | int vsync = I915_READ(VSYNC(pipe)); | |
79e53945 JB |
6462 | |
6463 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
6464 | if (!mode) | |
6465 | return NULL; | |
6466 | ||
6467 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
6468 | mode->hdisplay = (htot & 0xffff) + 1; | |
6469 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
6470 | mode->hsync_start = (hsync & 0xffff) + 1; | |
6471 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
6472 | mode->vdisplay = (vtot & 0xffff) + 1; | |
6473 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
6474 | mode->vsync_start = (vsync & 0xffff) + 1; | |
6475 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
6476 | ||
6477 | drm_mode_set_name(mode); | |
79e53945 JB |
6478 | |
6479 | return mode; | |
6480 | } | |
6481 | ||
3dec0095 | 6482 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
652c393a JB |
6483 | { |
6484 | struct drm_device *dev = crtc->dev; | |
6485 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6486 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6487 | int pipe = intel_crtc->pipe; | |
dbdc6479 JB |
6488 | int dpll_reg = DPLL(pipe); |
6489 | int dpll; | |
652c393a | 6490 | |
bad720ff | 6491 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
6492 | return; |
6493 | ||
6494 | if (!dev_priv->lvds_downclock_avail) | |
6495 | return; | |
6496 | ||
dbdc6479 | 6497 | dpll = I915_READ(dpll_reg); |
652c393a | 6498 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
44d98a61 | 6499 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a | 6500 | |
8ac5a6d5 | 6501 | assert_panel_unlocked(dev_priv, pipe); |
652c393a JB |
6502 | |
6503 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
6504 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 6505 | intel_wait_for_vblank(dev, pipe); |
dbdc6479 | 6506 | |
652c393a JB |
6507 | dpll = I915_READ(dpll_reg); |
6508 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 6509 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a | 6510 | } |
652c393a JB |
6511 | } |
6512 | ||
6513 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
6514 | { | |
6515 | struct drm_device *dev = crtc->dev; | |
6516 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6517 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
652c393a | 6518 | |
bad720ff | 6519 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
6520 | return; |
6521 | ||
6522 | if (!dev_priv->lvds_downclock_avail) | |
6523 | return; | |
6524 | ||
6525 | /* | |
6526 | * Since this is called by a timer, we should never get here in | |
6527 | * the manual case. | |
6528 | */ | |
6529 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
dc257cf1 DV |
6530 | int pipe = intel_crtc->pipe; |
6531 | int dpll_reg = DPLL(pipe); | |
6532 | int dpll; | |
f6e5b160 | 6533 | |
44d98a61 | 6534 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a | 6535 | |
8ac5a6d5 | 6536 | assert_panel_unlocked(dev_priv, pipe); |
652c393a | 6537 | |
dc257cf1 | 6538 | dpll = I915_READ(dpll_reg); |
652c393a JB |
6539 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
6540 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 6541 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
6542 | dpll = I915_READ(dpll_reg); |
6543 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 6544 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
6545 | } |
6546 | ||
6547 | } | |
6548 | ||
f047e395 CW |
6549 | void intel_mark_busy(struct drm_device *dev) |
6550 | { | |
f047e395 CW |
6551 | i915_update_gfx_val(dev->dev_private); |
6552 | } | |
6553 | ||
6554 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 6555 | { |
f047e395 CW |
6556 | } |
6557 | ||
6558 | void intel_mark_fb_busy(struct drm_i915_gem_object *obj) | |
6559 | { | |
6560 | struct drm_device *dev = obj->base.dev; | |
652c393a | 6561 | struct drm_crtc *crtc; |
652c393a JB |
6562 | |
6563 | if (!i915_powersave) | |
6564 | return; | |
6565 | ||
652c393a | 6566 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
652c393a JB |
6567 | if (!crtc->fb) |
6568 | continue; | |
6569 | ||
f047e395 CW |
6570 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
6571 | intel_increase_pllclock(crtc); | |
652c393a | 6572 | } |
652c393a JB |
6573 | } |
6574 | ||
f047e395 | 6575 | void intel_mark_fb_idle(struct drm_i915_gem_object *obj) |
652c393a | 6576 | { |
f047e395 CW |
6577 | struct drm_device *dev = obj->base.dev; |
6578 | struct drm_crtc *crtc; | |
652c393a | 6579 | |
f047e395 | 6580 | if (!i915_powersave) |
acb87dfb CW |
6581 | return; |
6582 | ||
652c393a JB |
6583 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
6584 | if (!crtc->fb) | |
6585 | continue; | |
6586 | ||
f047e395 CW |
6587 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
6588 | intel_decrease_pllclock(crtc); | |
652c393a JB |
6589 | } |
6590 | } | |
6591 | ||
79e53945 JB |
6592 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
6593 | { | |
6594 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
6595 | struct drm_device *dev = crtc->dev; |
6596 | struct intel_unpin_work *work; | |
6597 | unsigned long flags; | |
6598 | ||
6599 | spin_lock_irqsave(&dev->event_lock, flags); | |
6600 | work = intel_crtc->unpin_work; | |
6601 | intel_crtc->unpin_work = NULL; | |
6602 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6603 | ||
6604 | if (work) { | |
6605 | cancel_work_sync(&work->work); | |
6606 | kfree(work); | |
6607 | } | |
79e53945 JB |
6608 | |
6609 | drm_crtc_cleanup(crtc); | |
67e77c5a | 6610 | |
79e53945 JB |
6611 | kfree(intel_crtc); |
6612 | } | |
6613 | ||
6b95a207 KH |
6614 | static void intel_unpin_work_fn(struct work_struct *__work) |
6615 | { | |
6616 | struct intel_unpin_work *work = | |
6617 | container_of(__work, struct intel_unpin_work, work); | |
6618 | ||
6619 | mutex_lock(&work->dev->struct_mutex); | |
1690e1eb | 6620 | intel_unpin_fb_obj(work->old_fb_obj); |
05394f39 CW |
6621 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
6622 | drm_gem_object_unreference(&work->old_fb_obj->base); | |
d9e86c0e | 6623 | |
7782de3b | 6624 | intel_update_fbc(work->dev); |
6b95a207 KH |
6625 | mutex_unlock(&work->dev->struct_mutex); |
6626 | kfree(work); | |
6627 | } | |
6628 | ||
1afe3e9d | 6629 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 6630 | struct drm_crtc *crtc) |
6b95a207 KH |
6631 | { |
6632 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6b95a207 KH |
6633 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6634 | struct intel_unpin_work *work; | |
05394f39 | 6635 | struct drm_i915_gem_object *obj; |
6b95a207 | 6636 | struct drm_pending_vblank_event *e; |
95cb1b02 | 6637 | struct timeval tvbl; |
6b95a207 KH |
6638 | unsigned long flags; |
6639 | ||
6640 | /* Ignore early vblank irqs */ | |
6641 | if (intel_crtc == NULL) | |
6642 | return; | |
6643 | ||
6644 | spin_lock_irqsave(&dev->event_lock, flags); | |
6645 | work = intel_crtc->unpin_work; | |
6646 | if (work == NULL || !work->pending) { | |
6647 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6648 | return; | |
6649 | } | |
6650 | ||
6651 | intel_crtc->unpin_work = NULL; | |
6b95a207 KH |
6652 | |
6653 | if (work->event) { | |
6654 | e = work->event; | |
49b14a5c | 6655 | e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl); |
0af7e4df | 6656 | |
49b14a5c MK |
6657 | e->event.tv_sec = tvbl.tv_sec; |
6658 | e->event.tv_usec = tvbl.tv_usec; | |
0af7e4df | 6659 | |
6b95a207 KH |
6660 | list_add_tail(&e->base.link, |
6661 | &e->base.file_priv->event_list); | |
6662 | wake_up_interruptible(&e->base.file_priv->event_wait); | |
6663 | } | |
6664 | ||
0af7e4df MK |
6665 | drm_vblank_put(dev, intel_crtc->pipe); |
6666 | ||
6b95a207 KH |
6667 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6668 | ||
05394f39 | 6669 | obj = work->old_fb_obj; |
d9e86c0e | 6670 | |
e59f2bac | 6671 | atomic_clear_mask(1 << intel_crtc->plane, |
05394f39 | 6672 | &obj->pending_flip.counter); |
d9e86c0e | 6673 | |
5bb61643 | 6674 | wake_up(&dev_priv->pending_flip_queue); |
6b95a207 | 6675 | schedule_work(&work->work); |
e5510fac JB |
6676 | |
6677 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); | |
6b95a207 KH |
6678 | } |
6679 | ||
1afe3e9d JB |
6680 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
6681 | { | |
6682 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6683 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
6684 | ||
49b14a5c | 6685 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
6686 | } |
6687 | ||
6688 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
6689 | { | |
6690 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6691 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; | |
6692 | ||
49b14a5c | 6693 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
6694 | } |
6695 | ||
6b95a207 KH |
6696 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
6697 | { | |
6698 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6699 | struct intel_crtc *intel_crtc = | |
6700 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
6701 | unsigned long flags; | |
6702 | ||
6703 | spin_lock_irqsave(&dev->event_lock, flags); | |
de3f440f | 6704 | if (intel_crtc->unpin_work) { |
4e5359cd SF |
6705 | if ((++intel_crtc->unpin_work->pending) > 1) |
6706 | DRM_ERROR("Prepared flip multiple times\n"); | |
de3f440f JB |
6707 | } else { |
6708 | DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n"); | |
6709 | } | |
6b95a207 KH |
6710 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6711 | } | |
6712 | ||
8c9f3aaf JB |
6713 | static int intel_gen2_queue_flip(struct drm_device *dev, |
6714 | struct drm_crtc *crtc, | |
6715 | struct drm_framebuffer *fb, | |
6716 | struct drm_i915_gem_object *obj) | |
6717 | { | |
6718 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6719 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 6720 | u32 flip_mask; |
6d90c952 | 6721 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6722 | int ret; |
6723 | ||
6d90c952 | 6724 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6725 | if (ret) |
83d4092b | 6726 | goto err; |
8c9f3aaf | 6727 | |
6d90c952 | 6728 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 6729 | if (ret) |
83d4092b | 6730 | goto err_unpin; |
8c9f3aaf JB |
6731 | |
6732 | /* Can't queue multiple flips, so wait for the previous | |
6733 | * one to finish before executing the next. | |
6734 | */ | |
6735 | if (intel_crtc->plane) | |
6736 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
6737 | else | |
6738 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
6739 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
6740 | intel_ring_emit(ring, MI_NOOP); | |
6741 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
6742 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6743 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 6744 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
6745 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
6746 | intel_ring_advance(ring); | |
83d4092b CW |
6747 | return 0; |
6748 | ||
6749 | err_unpin: | |
6750 | intel_unpin_fb_obj(obj); | |
6751 | err: | |
8c9f3aaf JB |
6752 | return ret; |
6753 | } | |
6754 | ||
6755 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
6756 | struct drm_crtc *crtc, | |
6757 | struct drm_framebuffer *fb, | |
6758 | struct drm_i915_gem_object *obj) | |
6759 | { | |
6760 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6761 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 6762 | u32 flip_mask; |
6d90c952 | 6763 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6764 | int ret; |
6765 | ||
6d90c952 | 6766 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6767 | if (ret) |
83d4092b | 6768 | goto err; |
8c9f3aaf | 6769 | |
6d90c952 | 6770 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 6771 | if (ret) |
83d4092b | 6772 | goto err_unpin; |
8c9f3aaf JB |
6773 | |
6774 | if (intel_crtc->plane) | |
6775 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
6776 | else | |
6777 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
6778 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
6779 | intel_ring_emit(ring, MI_NOOP); | |
6780 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
6781 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6782 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 6783 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
6784 | intel_ring_emit(ring, MI_NOOP); |
6785 | ||
6786 | intel_ring_advance(ring); | |
83d4092b CW |
6787 | return 0; |
6788 | ||
6789 | err_unpin: | |
6790 | intel_unpin_fb_obj(obj); | |
6791 | err: | |
8c9f3aaf JB |
6792 | return ret; |
6793 | } | |
6794 | ||
6795 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
6796 | struct drm_crtc *crtc, | |
6797 | struct drm_framebuffer *fb, | |
6798 | struct drm_i915_gem_object *obj) | |
6799 | { | |
6800 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6801 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6802 | uint32_t pf, pipesrc; | |
6d90c952 | 6803 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6804 | int ret; |
6805 | ||
6d90c952 | 6806 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6807 | if (ret) |
83d4092b | 6808 | goto err; |
8c9f3aaf | 6809 | |
6d90c952 | 6810 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 6811 | if (ret) |
83d4092b | 6812 | goto err_unpin; |
8c9f3aaf JB |
6813 | |
6814 | /* i965+ uses the linear or tiled offsets from the | |
6815 | * Display Registers (which do not change across a page-flip) | |
6816 | * so we need only reprogram the base address. | |
6817 | */ | |
6d90c952 DV |
6818 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6819 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6820 | intel_ring_emit(ring, fb->pitches[0]); | |
c2c75131 DV |
6821 | intel_ring_emit(ring, |
6822 | (obj->gtt_offset + intel_crtc->dspaddr_offset) | | |
6823 | obj->tiling_mode); | |
8c9f3aaf JB |
6824 | |
6825 | /* XXX Enabling the panel-fitter across page-flip is so far | |
6826 | * untested on non-native modes, so ignore it for now. | |
6827 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
6828 | */ | |
6829 | pf = 0; | |
6830 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 DV |
6831 | intel_ring_emit(ring, pf | pipesrc); |
6832 | intel_ring_advance(ring); | |
83d4092b CW |
6833 | return 0; |
6834 | ||
6835 | err_unpin: | |
6836 | intel_unpin_fb_obj(obj); | |
6837 | err: | |
8c9f3aaf JB |
6838 | return ret; |
6839 | } | |
6840 | ||
6841 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
6842 | struct drm_crtc *crtc, | |
6843 | struct drm_framebuffer *fb, | |
6844 | struct drm_i915_gem_object *obj) | |
6845 | { | |
6846 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6847 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6d90c952 | 6848 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6849 | uint32_t pf, pipesrc; |
6850 | int ret; | |
6851 | ||
6d90c952 | 6852 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6853 | if (ret) |
83d4092b | 6854 | goto err; |
8c9f3aaf | 6855 | |
6d90c952 | 6856 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 6857 | if (ret) |
83d4092b | 6858 | goto err_unpin; |
8c9f3aaf | 6859 | |
6d90c952 DV |
6860 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6861 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6862 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
c2c75131 | 6863 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
8c9f3aaf | 6864 | |
dc257cf1 DV |
6865 | /* Contrary to the suggestions in the documentation, |
6866 | * "Enable Panel Fitter" does not seem to be required when page | |
6867 | * flipping with a non-native mode, and worse causes a normal | |
6868 | * modeset to fail. | |
6869 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
6870 | */ | |
6871 | pf = 0; | |
8c9f3aaf | 6872 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 DV |
6873 | intel_ring_emit(ring, pf | pipesrc); |
6874 | intel_ring_advance(ring); | |
83d4092b CW |
6875 | return 0; |
6876 | ||
6877 | err_unpin: | |
6878 | intel_unpin_fb_obj(obj); | |
6879 | err: | |
8c9f3aaf JB |
6880 | return ret; |
6881 | } | |
6882 | ||
7c9017e5 JB |
6883 | /* |
6884 | * On gen7 we currently use the blit ring because (in early silicon at least) | |
6885 | * the render ring doesn't give us interrpts for page flip completion, which | |
6886 | * means clients will hang after the first flip is queued. Fortunately the | |
6887 | * blit ring generates interrupts properly, so use it instead. | |
6888 | */ | |
6889 | static int intel_gen7_queue_flip(struct drm_device *dev, | |
6890 | struct drm_crtc *crtc, | |
6891 | struct drm_framebuffer *fb, | |
6892 | struct drm_i915_gem_object *obj) | |
6893 | { | |
6894 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6895 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6896 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; | |
cb05d8de | 6897 | uint32_t plane_bit = 0; |
7c9017e5 JB |
6898 | int ret; |
6899 | ||
6900 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); | |
6901 | if (ret) | |
83d4092b | 6902 | goto err; |
7c9017e5 | 6903 | |
cb05d8de DV |
6904 | switch(intel_crtc->plane) { |
6905 | case PLANE_A: | |
6906 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
6907 | break; | |
6908 | case PLANE_B: | |
6909 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
6910 | break; | |
6911 | case PLANE_C: | |
6912 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
6913 | break; | |
6914 | default: | |
6915 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
6916 | ret = -ENODEV; | |
ab3951eb | 6917 | goto err_unpin; |
cb05d8de DV |
6918 | } |
6919 | ||
7c9017e5 JB |
6920 | ret = intel_ring_begin(ring, 4); |
6921 | if (ret) | |
83d4092b | 6922 | goto err_unpin; |
7c9017e5 | 6923 | |
cb05d8de | 6924 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 6925 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
c2c75131 | 6926 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
7c9017e5 JB |
6927 | intel_ring_emit(ring, (MI_NOOP)); |
6928 | intel_ring_advance(ring); | |
83d4092b CW |
6929 | return 0; |
6930 | ||
6931 | err_unpin: | |
6932 | intel_unpin_fb_obj(obj); | |
6933 | err: | |
7c9017e5 JB |
6934 | return ret; |
6935 | } | |
6936 | ||
8c9f3aaf JB |
6937 | static int intel_default_queue_flip(struct drm_device *dev, |
6938 | struct drm_crtc *crtc, | |
6939 | struct drm_framebuffer *fb, | |
6940 | struct drm_i915_gem_object *obj) | |
6941 | { | |
6942 | return -ENODEV; | |
6943 | } | |
6944 | ||
6b95a207 KH |
6945 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
6946 | struct drm_framebuffer *fb, | |
6947 | struct drm_pending_vblank_event *event) | |
6948 | { | |
6949 | struct drm_device *dev = crtc->dev; | |
6950 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6951 | struct intel_framebuffer *intel_fb; | |
05394f39 | 6952 | struct drm_i915_gem_object *obj; |
6b95a207 KH |
6953 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6954 | struct intel_unpin_work *work; | |
8c9f3aaf | 6955 | unsigned long flags; |
52e68630 | 6956 | int ret; |
6b95a207 | 6957 | |
e6a595d2 VS |
6958 | /* Can't change pixel format via MI display flips. */ |
6959 | if (fb->pixel_format != crtc->fb->pixel_format) | |
6960 | return -EINVAL; | |
6961 | ||
6962 | /* | |
6963 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
6964 | * Note that pitch changes could also affect these register. | |
6965 | */ | |
6966 | if (INTEL_INFO(dev)->gen > 3 && | |
6967 | (fb->offsets[0] != crtc->fb->offsets[0] || | |
6968 | fb->pitches[0] != crtc->fb->pitches[0])) | |
6969 | return -EINVAL; | |
6970 | ||
6b95a207 KH |
6971 | work = kzalloc(sizeof *work, GFP_KERNEL); |
6972 | if (work == NULL) | |
6973 | return -ENOMEM; | |
6974 | ||
6b95a207 KH |
6975 | work->event = event; |
6976 | work->dev = crtc->dev; | |
6977 | intel_fb = to_intel_framebuffer(crtc->fb); | |
b1b87f6b | 6978 | work->old_fb_obj = intel_fb->obj; |
6b95a207 KH |
6979 | INIT_WORK(&work->work, intel_unpin_work_fn); |
6980 | ||
7317c75e JB |
6981 | ret = drm_vblank_get(dev, intel_crtc->pipe); |
6982 | if (ret) | |
6983 | goto free_work; | |
6984 | ||
6b95a207 KH |
6985 | /* We borrow the event spin lock for protecting unpin_work */ |
6986 | spin_lock_irqsave(&dev->event_lock, flags); | |
6987 | if (intel_crtc->unpin_work) { | |
6988 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6989 | kfree(work); | |
7317c75e | 6990 | drm_vblank_put(dev, intel_crtc->pipe); |
468f0b44 CW |
6991 | |
6992 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
6b95a207 KH |
6993 | return -EBUSY; |
6994 | } | |
6995 | intel_crtc->unpin_work = work; | |
6996 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6997 | ||
6998 | intel_fb = to_intel_framebuffer(fb); | |
6999 | obj = intel_fb->obj; | |
7000 | ||
79158103 CW |
7001 | ret = i915_mutex_lock_interruptible(dev); |
7002 | if (ret) | |
7003 | goto cleanup; | |
6b95a207 | 7004 | |
75dfca80 | 7005 | /* Reference the objects for the scheduled work. */ |
05394f39 CW |
7006 | drm_gem_object_reference(&work->old_fb_obj->base); |
7007 | drm_gem_object_reference(&obj->base); | |
6b95a207 KH |
7008 | |
7009 | crtc->fb = fb; | |
96b099fd | 7010 | |
e1f99ce6 | 7011 | work->pending_flip_obj = obj; |
e1f99ce6 | 7012 | |
4e5359cd SF |
7013 | work->enable_stall_check = true; |
7014 | ||
e1f99ce6 CW |
7015 | /* Block clients from rendering to the new back buffer until |
7016 | * the flip occurs and the object is no longer visible. | |
7017 | */ | |
05394f39 | 7018 | atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); |
e1f99ce6 | 7019 | |
8c9f3aaf JB |
7020 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); |
7021 | if (ret) | |
7022 | goto cleanup_pending; | |
6b95a207 | 7023 | |
7782de3b | 7024 | intel_disable_fbc(dev); |
f047e395 | 7025 | intel_mark_fb_busy(obj); |
6b95a207 KH |
7026 | mutex_unlock(&dev->struct_mutex); |
7027 | ||
e5510fac JB |
7028 | trace_i915_flip_request(intel_crtc->plane, obj); |
7029 | ||
6b95a207 | 7030 | return 0; |
96b099fd | 7031 | |
8c9f3aaf JB |
7032 | cleanup_pending: |
7033 | atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); | |
05394f39 CW |
7034 | drm_gem_object_unreference(&work->old_fb_obj->base); |
7035 | drm_gem_object_unreference(&obj->base); | |
96b099fd CW |
7036 | mutex_unlock(&dev->struct_mutex); |
7037 | ||
79158103 | 7038 | cleanup: |
96b099fd CW |
7039 | spin_lock_irqsave(&dev->event_lock, flags); |
7040 | intel_crtc->unpin_work = NULL; | |
7041 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7042 | ||
7317c75e JB |
7043 | drm_vblank_put(dev, intel_crtc->pipe); |
7044 | free_work: | |
96b099fd CW |
7045 | kfree(work); |
7046 | ||
7047 | return ret; | |
6b95a207 KH |
7048 | } |
7049 | ||
f6e5b160 | 7050 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 CW |
7051 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
7052 | .load_lut = intel_crtc_load_lut, | |
976f8a20 | 7053 | .disable = intel_crtc_noop, |
f6e5b160 CW |
7054 | }; |
7055 | ||
6ed0f796 | 7056 | bool intel_encoder_check_is_cloned(struct intel_encoder *encoder) |
47f1c6c9 | 7057 | { |
6ed0f796 DV |
7058 | struct intel_encoder *other_encoder; |
7059 | struct drm_crtc *crtc = &encoder->new_crtc->base; | |
47f1c6c9 | 7060 | |
6ed0f796 DV |
7061 | if (WARN_ON(!crtc)) |
7062 | return false; | |
7063 | ||
7064 | list_for_each_entry(other_encoder, | |
7065 | &crtc->dev->mode_config.encoder_list, | |
7066 | base.head) { | |
7067 | ||
7068 | if (&other_encoder->new_crtc->base != crtc || | |
7069 | encoder == other_encoder) | |
7070 | continue; | |
7071 | else | |
7072 | return true; | |
f47166d2 CW |
7073 | } |
7074 | ||
6ed0f796 DV |
7075 | return false; |
7076 | } | |
47f1c6c9 | 7077 | |
50f56119 DV |
7078 | static bool intel_encoder_crtc_ok(struct drm_encoder *encoder, |
7079 | struct drm_crtc *crtc) | |
7080 | { | |
7081 | struct drm_device *dev; | |
7082 | struct drm_crtc *tmp; | |
7083 | int crtc_mask = 1; | |
47f1c6c9 | 7084 | |
50f56119 | 7085 | WARN(!crtc, "checking null crtc?\n"); |
47f1c6c9 | 7086 | |
50f56119 | 7087 | dev = crtc->dev; |
47f1c6c9 | 7088 | |
50f56119 DV |
7089 | list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) { |
7090 | if (tmp == crtc) | |
7091 | break; | |
7092 | crtc_mask <<= 1; | |
7093 | } | |
47f1c6c9 | 7094 | |
50f56119 DV |
7095 | if (encoder->possible_crtcs & crtc_mask) |
7096 | return true; | |
7097 | return false; | |
47f1c6c9 | 7098 | } |
79e53945 | 7099 | |
9a935856 DV |
7100 | /** |
7101 | * intel_modeset_update_staged_output_state | |
7102 | * | |
7103 | * Updates the staged output configuration state, e.g. after we've read out the | |
7104 | * current hw state. | |
7105 | */ | |
7106 | static void intel_modeset_update_staged_output_state(struct drm_device *dev) | |
f6e5b160 | 7107 | { |
9a935856 DV |
7108 | struct intel_encoder *encoder; |
7109 | struct intel_connector *connector; | |
f6e5b160 | 7110 | |
9a935856 DV |
7111 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7112 | base.head) { | |
7113 | connector->new_encoder = | |
7114 | to_intel_encoder(connector->base.encoder); | |
7115 | } | |
f6e5b160 | 7116 | |
9a935856 DV |
7117 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7118 | base.head) { | |
7119 | encoder->new_crtc = | |
7120 | to_intel_crtc(encoder->base.crtc); | |
7121 | } | |
f6e5b160 CW |
7122 | } |
7123 | ||
9a935856 DV |
7124 | /** |
7125 | * intel_modeset_commit_output_state | |
7126 | * | |
7127 | * This function copies the stage display pipe configuration to the real one. | |
7128 | */ | |
7129 | static void intel_modeset_commit_output_state(struct drm_device *dev) | |
7130 | { | |
7131 | struct intel_encoder *encoder; | |
7132 | struct intel_connector *connector; | |
f6e5b160 | 7133 | |
9a935856 DV |
7134 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7135 | base.head) { | |
7136 | connector->base.encoder = &connector->new_encoder->base; | |
7137 | } | |
f6e5b160 | 7138 | |
9a935856 DV |
7139 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7140 | base.head) { | |
7141 | encoder->base.crtc = &encoder->new_crtc->base; | |
7142 | } | |
7143 | } | |
7144 | ||
7758a113 DV |
7145 | static struct drm_display_mode * |
7146 | intel_modeset_adjusted_mode(struct drm_crtc *crtc, | |
7147 | struct drm_display_mode *mode) | |
ee7b9f93 | 7148 | { |
7758a113 DV |
7149 | struct drm_device *dev = crtc->dev; |
7150 | struct drm_display_mode *adjusted_mode; | |
7151 | struct drm_encoder_helper_funcs *encoder_funcs; | |
7152 | struct intel_encoder *encoder; | |
ee7b9f93 | 7153 | |
7758a113 DV |
7154 | adjusted_mode = drm_mode_duplicate(dev, mode); |
7155 | if (!adjusted_mode) | |
7156 | return ERR_PTR(-ENOMEM); | |
7157 | ||
7158 | /* Pass our mode to the connectors and the CRTC to give them a chance to | |
7159 | * adjust it according to limitations or connector properties, and also | |
7160 | * a chance to reject the mode entirely. | |
7161 | */ | |
7162 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
7163 | base.head) { | |
7164 | ||
7165 | if (&encoder->new_crtc->base != crtc) | |
7166 | continue; | |
7167 | encoder_funcs = encoder->base.helper_private; | |
7168 | if (!(encoder_funcs->mode_fixup(&encoder->base, mode, | |
7169 | adjusted_mode))) { | |
7170 | DRM_DEBUG_KMS("Encoder fixup failed\n"); | |
7171 | goto fail; | |
7172 | } | |
ee7b9f93 JB |
7173 | } |
7174 | ||
7758a113 DV |
7175 | if (!(intel_crtc_mode_fixup(crtc, mode, adjusted_mode))) { |
7176 | DRM_DEBUG_KMS("CRTC fixup failed\n"); | |
7177 | goto fail; | |
ee7b9f93 | 7178 | } |
7758a113 DV |
7179 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
7180 | ||
7181 | return adjusted_mode; | |
7182 | fail: | |
7183 | drm_mode_destroy(dev, adjusted_mode); | |
7184 | return ERR_PTR(-EINVAL); | |
ee7b9f93 JB |
7185 | } |
7186 | ||
e2e1ed41 DV |
7187 | /* Computes which crtcs are affected and sets the relevant bits in the mask. For |
7188 | * simplicity we use the crtc's pipe number (because it's easier to obtain). */ | |
7189 | static void | |
7190 | intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes, | |
7191 | unsigned *prepare_pipes, unsigned *disable_pipes) | |
79e53945 JB |
7192 | { |
7193 | struct intel_crtc *intel_crtc; | |
e2e1ed41 DV |
7194 | struct drm_device *dev = crtc->dev; |
7195 | struct intel_encoder *encoder; | |
7196 | struct intel_connector *connector; | |
7197 | struct drm_crtc *tmp_crtc; | |
79e53945 | 7198 | |
e2e1ed41 | 7199 | *disable_pipes = *modeset_pipes = *prepare_pipes = 0; |
79e53945 | 7200 | |
e2e1ed41 DV |
7201 | /* Check which crtcs have changed outputs connected to them, these need |
7202 | * to be part of the prepare_pipes mask. We don't (yet) support global | |
7203 | * modeset across multiple crtcs, so modeset_pipes will only have one | |
7204 | * bit set at most. */ | |
7205 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
7206 | base.head) { | |
7207 | if (connector->base.encoder == &connector->new_encoder->base) | |
7208 | continue; | |
79e53945 | 7209 | |
e2e1ed41 DV |
7210 | if (connector->base.encoder) { |
7211 | tmp_crtc = connector->base.encoder->crtc; | |
7212 | ||
7213 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
7214 | } | |
7215 | ||
7216 | if (connector->new_encoder) | |
7217 | *prepare_pipes |= | |
7218 | 1 << connector->new_encoder->new_crtc->pipe; | |
79e53945 JB |
7219 | } |
7220 | ||
e2e1ed41 DV |
7221 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7222 | base.head) { | |
7223 | if (encoder->base.crtc == &encoder->new_crtc->base) | |
7224 | continue; | |
7225 | ||
7226 | if (encoder->base.crtc) { | |
7227 | tmp_crtc = encoder->base.crtc; | |
7228 | ||
7229 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
7230 | } | |
7231 | ||
7232 | if (encoder->new_crtc) | |
7233 | *prepare_pipes |= 1 << encoder->new_crtc->pipe; | |
80824003 JB |
7234 | } |
7235 | ||
e2e1ed41 DV |
7236 | /* Check for any pipes that will be fully disabled ... */ |
7237 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
7238 | base.head) { | |
7239 | bool used = false; | |
22fd0fab | 7240 | |
e2e1ed41 DV |
7241 | /* Don't try to disable disabled crtcs. */ |
7242 | if (!intel_crtc->base.enabled) | |
7243 | continue; | |
7e7d76c3 | 7244 | |
e2e1ed41 DV |
7245 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7246 | base.head) { | |
7247 | if (encoder->new_crtc == intel_crtc) | |
7248 | used = true; | |
7249 | } | |
7250 | ||
7251 | if (!used) | |
7252 | *disable_pipes |= 1 << intel_crtc->pipe; | |
7e7d76c3 JB |
7253 | } |
7254 | ||
e2e1ed41 DV |
7255 | |
7256 | /* set_mode is also used to update properties on life display pipes. */ | |
7257 | intel_crtc = to_intel_crtc(crtc); | |
7258 | if (crtc->enabled) | |
7259 | *prepare_pipes |= 1 << intel_crtc->pipe; | |
7260 | ||
7261 | /* We only support modeset on one single crtc, hence we need to do that | |
7262 | * only for the passed in crtc iff we change anything else than just | |
7263 | * disable crtcs. | |
7264 | * | |
7265 | * This is actually not true, to be fully compatible with the old crtc | |
7266 | * helper we automatically disable _any_ output (i.e. doesn't need to be | |
7267 | * connected to the crtc we're modesetting on) if it's disconnected. | |
7268 | * Which is a rather nutty api (since changed the output configuration | |
7269 | * without userspace's explicit request can lead to confusion), but | |
7270 | * alas. Hence we currently need to modeset on all pipes we prepare. */ | |
7271 | if (*prepare_pipes) | |
7272 | *modeset_pipes = *prepare_pipes; | |
7273 | ||
7274 | /* ... and mask these out. */ | |
7275 | *modeset_pipes &= ~(*disable_pipes); | |
7276 | *prepare_pipes &= ~(*disable_pipes); | |
7277 | } | |
7278 | ||
ea9d758d DV |
7279 | static bool intel_crtc_in_use(struct drm_crtc *crtc) |
7280 | { | |
7281 | struct drm_encoder *encoder; | |
7282 | struct drm_device *dev = crtc->dev; | |
7283 | ||
7284 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
7285 | if (encoder->crtc == crtc) | |
7286 | return true; | |
7287 | ||
7288 | return false; | |
7289 | } | |
7290 | ||
7291 | static void | |
7292 | intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes) | |
7293 | { | |
7294 | struct intel_encoder *intel_encoder; | |
7295 | struct intel_crtc *intel_crtc; | |
7296 | struct drm_connector *connector; | |
7297 | ||
7298 | list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list, | |
7299 | base.head) { | |
7300 | if (!intel_encoder->base.crtc) | |
7301 | continue; | |
7302 | ||
7303 | intel_crtc = to_intel_crtc(intel_encoder->base.crtc); | |
7304 | ||
7305 | if (prepare_pipes & (1 << intel_crtc->pipe)) | |
7306 | intel_encoder->connectors_active = false; | |
7307 | } | |
7308 | ||
7309 | intel_modeset_commit_output_state(dev); | |
7310 | ||
7311 | /* Update computed state. */ | |
7312 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
7313 | base.head) { | |
7314 | intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base); | |
7315 | } | |
7316 | ||
7317 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
7318 | if (!connector->encoder || !connector->encoder->crtc) | |
7319 | continue; | |
7320 | ||
7321 | intel_crtc = to_intel_crtc(connector->encoder->crtc); | |
7322 | ||
7323 | if (prepare_pipes & (1 << intel_crtc->pipe)) { | |
68d34720 DV |
7324 | struct drm_property *dpms_property = |
7325 | dev->mode_config.dpms_property; | |
7326 | ||
ea9d758d | 7327 | connector->dpms = DRM_MODE_DPMS_ON; |
68d34720 DV |
7328 | drm_connector_property_set_value(connector, |
7329 | dpms_property, | |
7330 | DRM_MODE_DPMS_ON); | |
ea9d758d DV |
7331 | |
7332 | intel_encoder = to_intel_encoder(connector->encoder); | |
7333 | intel_encoder->connectors_active = true; | |
7334 | } | |
7335 | } | |
7336 | ||
7337 | } | |
7338 | ||
25c5b266 DV |
7339 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
7340 | list_for_each_entry((intel_crtc), \ | |
7341 | &(dev)->mode_config.crtc_list, \ | |
7342 | base.head) \ | |
7343 | if (mask & (1 <<(intel_crtc)->pipe)) \ | |
7344 | ||
b980514c | 7345 | void |
8af6cf88 DV |
7346 | intel_modeset_check_state(struct drm_device *dev) |
7347 | { | |
7348 | struct intel_crtc *crtc; | |
7349 | struct intel_encoder *encoder; | |
7350 | struct intel_connector *connector; | |
7351 | ||
7352 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
7353 | base.head) { | |
7354 | /* This also checks the encoder/connector hw state with the | |
7355 | * ->get_hw_state callbacks. */ | |
7356 | intel_connector_check_state(connector); | |
7357 | ||
7358 | WARN(&connector->new_encoder->base != connector->base.encoder, | |
7359 | "connector's staged encoder doesn't match current encoder\n"); | |
7360 | } | |
7361 | ||
7362 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
7363 | base.head) { | |
7364 | bool enabled = false; | |
7365 | bool active = false; | |
7366 | enum pipe pipe, tracked_pipe; | |
7367 | ||
7368 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", | |
7369 | encoder->base.base.id, | |
7370 | drm_get_encoder_name(&encoder->base)); | |
7371 | ||
7372 | WARN(&encoder->new_crtc->base != encoder->base.crtc, | |
7373 | "encoder's stage crtc doesn't match current crtc\n"); | |
7374 | WARN(encoder->connectors_active && !encoder->base.crtc, | |
7375 | "encoder's active_connectors set, but no crtc\n"); | |
7376 | ||
7377 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
7378 | base.head) { | |
7379 | if (connector->base.encoder != &encoder->base) | |
7380 | continue; | |
7381 | enabled = true; | |
7382 | if (connector->base.dpms != DRM_MODE_DPMS_OFF) | |
7383 | active = true; | |
7384 | } | |
7385 | WARN(!!encoder->base.crtc != enabled, | |
7386 | "encoder's enabled state mismatch " | |
7387 | "(expected %i, found %i)\n", | |
7388 | !!encoder->base.crtc, enabled); | |
7389 | WARN(active && !encoder->base.crtc, | |
7390 | "active encoder with no crtc\n"); | |
7391 | ||
7392 | WARN(encoder->connectors_active != active, | |
7393 | "encoder's computed active state doesn't match tracked active state " | |
7394 | "(expected %i, found %i)\n", active, encoder->connectors_active); | |
7395 | ||
7396 | active = encoder->get_hw_state(encoder, &pipe); | |
7397 | WARN(active != encoder->connectors_active, | |
7398 | "encoder's hw state doesn't match sw tracking " | |
7399 | "(expected %i, found %i)\n", | |
7400 | encoder->connectors_active, active); | |
7401 | ||
7402 | if (!encoder->base.crtc) | |
7403 | continue; | |
7404 | ||
7405 | tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe; | |
7406 | WARN(active && pipe != tracked_pipe, | |
7407 | "active encoder's pipe doesn't match" | |
7408 | "(expected %i, found %i)\n", | |
7409 | tracked_pipe, pipe); | |
7410 | ||
7411 | } | |
7412 | ||
7413 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, | |
7414 | base.head) { | |
7415 | bool enabled = false; | |
7416 | bool active = false; | |
7417 | ||
7418 | DRM_DEBUG_KMS("[CRTC:%d]\n", | |
7419 | crtc->base.base.id); | |
7420 | ||
7421 | WARN(crtc->active && !crtc->base.enabled, | |
7422 | "active crtc, but not enabled in sw tracking\n"); | |
7423 | ||
7424 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
7425 | base.head) { | |
7426 | if (encoder->base.crtc != &crtc->base) | |
7427 | continue; | |
7428 | enabled = true; | |
7429 | if (encoder->connectors_active) | |
7430 | active = true; | |
7431 | } | |
7432 | WARN(active != crtc->active, | |
7433 | "crtc's computed active state doesn't match tracked active state " | |
7434 | "(expected %i, found %i)\n", active, crtc->active); | |
7435 | WARN(enabled != crtc->base.enabled, | |
7436 | "crtc's computed enabled state doesn't match tracked enabled state " | |
7437 | "(expected %i, found %i)\n", enabled, crtc->base.enabled); | |
7438 | ||
7439 | assert_pipe(dev->dev_private, crtc->pipe, crtc->active); | |
7440 | } | |
7441 | } | |
7442 | ||
a6778b3c DV |
7443 | bool intel_set_mode(struct drm_crtc *crtc, |
7444 | struct drm_display_mode *mode, | |
94352cf9 | 7445 | int x, int y, struct drm_framebuffer *fb) |
a6778b3c DV |
7446 | { |
7447 | struct drm_device *dev = crtc->dev; | |
dbf2b54e | 7448 | drm_i915_private_t *dev_priv = dev->dev_private; |
a6778b3c | 7449 | struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode; |
a6778b3c | 7450 | struct drm_encoder_helper_funcs *encoder_funcs; |
a6778b3c | 7451 | struct drm_encoder *encoder; |
25c5b266 DV |
7452 | struct intel_crtc *intel_crtc; |
7453 | unsigned disable_pipes, prepare_pipes, modeset_pipes; | |
a6778b3c DV |
7454 | bool ret = true; |
7455 | ||
e2e1ed41 | 7456 | intel_modeset_affected_pipes(crtc, &modeset_pipes, |
25c5b266 DV |
7457 | &prepare_pipes, &disable_pipes); |
7458 | ||
7459 | DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n", | |
7460 | modeset_pipes, prepare_pipes, disable_pipes); | |
e2e1ed41 | 7461 | |
976f8a20 DV |
7462 | for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) |
7463 | intel_crtc_disable(&intel_crtc->base); | |
87f1faa6 | 7464 | |
a6778b3c DV |
7465 | saved_hwmode = crtc->hwmode; |
7466 | saved_mode = crtc->mode; | |
a6778b3c | 7467 | |
25c5b266 DV |
7468 | /* Hack: Because we don't (yet) support global modeset on multiple |
7469 | * crtcs, we don't keep track of the new mode for more than one crtc. | |
7470 | * Hence simply check whether any bit is set in modeset_pipes in all the | |
7471 | * pieces of code that are not yet converted to deal with mutliple crtcs | |
7472 | * changing their mode at the same time. */ | |
7473 | adjusted_mode = NULL; | |
7474 | if (modeset_pipes) { | |
7475 | adjusted_mode = intel_modeset_adjusted_mode(crtc, mode); | |
7476 | if (IS_ERR(adjusted_mode)) { | |
7477 | return false; | |
7478 | } | |
25c5b266 | 7479 | } |
a6778b3c | 7480 | |
ea9d758d DV |
7481 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) { |
7482 | if (intel_crtc->base.enabled) | |
7483 | dev_priv->display.crtc_disable(&intel_crtc->base); | |
7484 | } | |
a6778b3c | 7485 | |
6c4c86f5 DV |
7486 | /* crtc->mode is already used by the ->mode_set callbacks, hence we need |
7487 | * to set it here already despite that we pass it down the callchain. | |
7488 | */ | |
7489 | if (modeset_pipes) | |
25c5b266 | 7490 | crtc->mode = *mode; |
7758a113 | 7491 | |
ea9d758d DV |
7492 | /* Only after disabling all output pipelines that will be changed can we |
7493 | * update the the output configuration. */ | |
7494 | intel_modeset_update_state(dev, prepare_pipes); | |
7495 | ||
a6778b3c DV |
7496 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
7497 | * on the DPLL. | |
7498 | */ | |
25c5b266 DV |
7499 | for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { |
7500 | ret = !intel_crtc_mode_set(&intel_crtc->base, | |
7501 | mode, adjusted_mode, | |
7502 | x, y, fb); | |
7503 | if (!ret) | |
7504 | goto done; | |
a6778b3c | 7505 | |
25c5b266 | 7506 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
a6778b3c | 7507 | |
25c5b266 DV |
7508 | if (encoder->crtc != &intel_crtc->base) |
7509 | continue; | |
a6778b3c | 7510 | |
25c5b266 DV |
7511 | DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", |
7512 | encoder->base.id, drm_get_encoder_name(encoder), | |
7513 | mode->base.id, mode->name); | |
7514 | encoder_funcs = encoder->helper_private; | |
7515 | encoder_funcs->mode_set(encoder, mode, adjusted_mode); | |
7516 | } | |
a6778b3c DV |
7517 | } |
7518 | ||
7519 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ | |
25c5b266 DV |
7520 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) |
7521 | dev_priv->display.crtc_enable(&intel_crtc->base); | |
a6778b3c | 7522 | |
25c5b266 DV |
7523 | if (modeset_pipes) { |
7524 | /* Store real post-adjustment hardware mode. */ | |
7525 | crtc->hwmode = *adjusted_mode; | |
a6778b3c | 7526 | |
25c5b266 DV |
7527 | /* Calculate and store various constants which |
7528 | * are later needed by vblank and swap-completion | |
7529 | * timestamping. They are derived from true hwmode. | |
7530 | */ | |
7531 | drm_calc_timestamping_constants(crtc); | |
7532 | } | |
a6778b3c DV |
7533 | |
7534 | /* FIXME: add subpixel order */ | |
7535 | done: | |
7536 | drm_mode_destroy(dev, adjusted_mode); | |
25c5b266 | 7537 | if (!ret && crtc->enabled) { |
a6778b3c DV |
7538 | crtc->hwmode = saved_hwmode; |
7539 | crtc->mode = saved_mode; | |
8af6cf88 DV |
7540 | } else { |
7541 | intel_modeset_check_state(dev); | |
a6778b3c DV |
7542 | } |
7543 | ||
7544 | return ret; | |
7545 | } | |
7546 | ||
25c5b266 DV |
7547 | #undef for_each_intel_crtc_masked |
7548 | ||
d9e55608 DV |
7549 | static void intel_set_config_free(struct intel_set_config *config) |
7550 | { | |
7551 | if (!config) | |
7552 | return; | |
7553 | ||
1aa4b628 DV |
7554 | kfree(config->save_connector_encoders); |
7555 | kfree(config->save_encoder_crtcs); | |
d9e55608 DV |
7556 | kfree(config); |
7557 | } | |
7558 | ||
85f9eb71 DV |
7559 | static int intel_set_config_save_state(struct drm_device *dev, |
7560 | struct intel_set_config *config) | |
7561 | { | |
85f9eb71 DV |
7562 | struct drm_encoder *encoder; |
7563 | struct drm_connector *connector; | |
7564 | int count; | |
7565 | ||
1aa4b628 DV |
7566 | config->save_encoder_crtcs = |
7567 | kcalloc(dev->mode_config.num_encoder, | |
7568 | sizeof(struct drm_crtc *), GFP_KERNEL); | |
7569 | if (!config->save_encoder_crtcs) | |
85f9eb71 DV |
7570 | return -ENOMEM; |
7571 | ||
1aa4b628 DV |
7572 | config->save_connector_encoders = |
7573 | kcalloc(dev->mode_config.num_connector, | |
7574 | sizeof(struct drm_encoder *), GFP_KERNEL); | |
7575 | if (!config->save_connector_encoders) | |
85f9eb71 DV |
7576 | return -ENOMEM; |
7577 | ||
7578 | /* Copy data. Note that driver private data is not affected. | |
7579 | * Should anything bad happen only the expected state is | |
7580 | * restored, not the drivers personal bookkeeping. | |
7581 | */ | |
85f9eb71 DV |
7582 | count = 0; |
7583 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
1aa4b628 | 7584 | config->save_encoder_crtcs[count++] = encoder->crtc; |
85f9eb71 DV |
7585 | } |
7586 | ||
7587 | count = 0; | |
7588 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1aa4b628 | 7589 | config->save_connector_encoders[count++] = connector->encoder; |
85f9eb71 DV |
7590 | } |
7591 | ||
7592 | return 0; | |
7593 | } | |
7594 | ||
7595 | static void intel_set_config_restore_state(struct drm_device *dev, | |
7596 | struct intel_set_config *config) | |
7597 | { | |
9a935856 DV |
7598 | struct intel_encoder *encoder; |
7599 | struct intel_connector *connector; | |
85f9eb71 DV |
7600 | int count; |
7601 | ||
85f9eb71 | 7602 | count = 0; |
9a935856 DV |
7603 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
7604 | encoder->new_crtc = | |
7605 | to_intel_crtc(config->save_encoder_crtcs[count++]); | |
85f9eb71 DV |
7606 | } |
7607 | ||
7608 | count = 0; | |
9a935856 DV |
7609 | list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) { |
7610 | connector->new_encoder = | |
7611 | to_intel_encoder(config->save_connector_encoders[count++]); | |
85f9eb71 DV |
7612 | } |
7613 | } | |
7614 | ||
5e2b584e DV |
7615 | static void |
7616 | intel_set_config_compute_mode_changes(struct drm_mode_set *set, | |
7617 | struct intel_set_config *config) | |
7618 | { | |
7619 | ||
7620 | /* We should be able to check here if the fb has the same properties | |
7621 | * and then just flip_or_move it */ | |
7622 | if (set->crtc->fb != set->fb) { | |
7623 | /* If we have no fb then treat it as a full mode set */ | |
7624 | if (set->crtc->fb == NULL) { | |
7625 | DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); | |
7626 | config->mode_changed = true; | |
7627 | } else if (set->fb == NULL) { | |
7628 | config->mode_changed = true; | |
7629 | } else if (set->fb->depth != set->crtc->fb->depth) { | |
7630 | config->mode_changed = true; | |
7631 | } else if (set->fb->bits_per_pixel != | |
7632 | set->crtc->fb->bits_per_pixel) { | |
7633 | config->mode_changed = true; | |
7634 | } else | |
7635 | config->fb_changed = true; | |
7636 | } | |
7637 | ||
835c5873 | 7638 | if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) |
5e2b584e DV |
7639 | config->fb_changed = true; |
7640 | ||
7641 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { | |
7642 | DRM_DEBUG_KMS("modes are different, full mode set\n"); | |
7643 | drm_mode_debug_printmodeline(&set->crtc->mode); | |
7644 | drm_mode_debug_printmodeline(set->mode); | |
7645 | config->mode_changed = true; | |
7646 | } | |
7647 | } | |
7648 | ||
2e431051 | 7649 | static int |
9a935856 DV |
7650 | intel_modeset_stage_output_state(struct drm_device *dev, |
7651 | struct drm_mode_set *set, | |
7652 | struct intel_set_config *config) | |
50f56119 | 7653 | { |
85f9eb71 | 7654 | struct drm_crtc *new_crtc; |
9a935856 DV |
7655 | struct intel_connector *connector; |
7656 | struct intel_encoder *encoder; | |
2e431051 | 7657 | int count, ro; |
50f56119 | 7658 | |
9a935856 DV |
7659 | /* The upper layers ensure that we either disabl a crtc or have a list |
7660 | * of connectors. For paranoia, double-check this. */ | |
7661 | WARN_ON(!set->fb && (set->num_connectors != 0)); | |
7662 | WARN_ON(set->fb && (set->num_connectors == 0)); | |
7663 | ||
50f56119 | 7664 | count = 0; |
9a935856 DV |
7665 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7666 | base.head) { | |
7667 | /* Otherwise traverse passed in connector list and get encoders | |
7668 | * for them. */ | |
50f56119 | 7669 | for (ro = 0; ro < set->num_connectors; ro++) { |
9a935856 DV |
7670 | if (set->connectors[ro] == &connector->base) { |
7671 | connector->new_encoder = connector->encoder; | |
50f56119 DV |
7672 | break; |
7673 | } | |
7674 | } | |
7675 | ||
9a935856 DV |
7676 | /* If we disable the crtc, disable all its connectors. Also, if |
7677 | * the connector is on the changing crtc but not on the new | |
7678 | * connector list, disable it. */ | |
7679 | if ((!set->fb || ro == set->num_connectors) && | |
7680 | connector->base.encoder && | |
7681 | connector->base.encoder->crtc == set->crtc) { | |
7682 | connector->new_encoder = NULL; | |
7683 | ||
7684 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", | |
7685 | connector->base.base.id, | |
7686 | drm_get_connector_name(&connector->base)); | |
7687 | } | |
7688 | ||
7689 | ||
7690 | if (&connector->new_encoder->base != connector->base.encoder) { | |
50f56119 | 7691 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
5e2b584e | 7692 | config->mode_changed = true; |
50f56119 | 7693 | } |
9a935856 DV |
7694 | |
7695 | /* Disable all disconnected encoders. */ | |
7696 | if (connector->base.status == connector_status_disconnected) | |
7697 | connector->new_encoder = NULL; | |
50f56119 | 7698 | } |
9a935856 | 7699 | /* connector->new_encoder is now updated for all connectors. */ |
50f56119 | 7700 | |
9a935856 | 7701 | /* Update crtc of enabled connectors. */ |
50f56119 | 7702 | count = 0; |
9a935856 DV |
7703 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7704 | base.head) { | |
7705 | if (!connector->new_encoder) | |
50f56119 DV |
7706 | continue; |
7707 | ||
9a935856 | 7708 | new_crtc = connector->new_encoder->base.crtc; |
50f56119 DV |
7709 | |
7710 | for (ro = 0; ro < set->num_connectors; ro++) { | |
9a935856 | 7711 | if (set->connectors[ro] == &connector->base) |
50f56119 DV |
7712 | new_crtc = set->crtc; |
7713 | } | |
7714 | ||
7715 | /* Make sure the new CRTC will work with the encoder */ | |
9a935856 DV |
7716 | if (!intel_encoder_crtc_ok(&connector->new_encoder->base, |
7717 | new_crtc)) { | |
5e2b584e | 7718 | return -EINVAL; |
50f56119 | 7719 | } |
9a935856 DV |
7720 | connector->encoder->new_crtc = to_intel_crtc(new_crtc); |
7721 | ||
7722 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", | |
7723 | connector->base.base.id, | |
7724 | drm_get_connector_name(&connector->base), | |
7725 | new_crtc->base.id); | |
7726 | } | |
7727 | ||
7728 | /* Check for any encoders that needs to be disabled. */ | |
7729 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
7730 | base.head) { | |
7731 | list_for_each_entry(connector, | |
7732 | &dev->mode_config.connector_list, | |
7733 | base.head) { | |
7734 | if (connector->new_encoder == encoder) { | |
7735 | WARN_ON(!connector->new_encoder->new_crtc); | |
7736 | ||
7737 | goto next_encoder; | |
7738 | } | |
7739 | } | |
7740 | encoder->new_crtc = NULL; | |
7741 | next_encoder: | |
7742 | /* Only now check for crtc changes so we don't miss encoders | |
7743 | * that will be disabled. */ | |
7744 | if (&encoder->new_crtc->base != encoder->base.crtc) { | |
50f56119 | 7745 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
5e2b584e | 7746 | config->mode_changed = true; |
50f56119 DV |
7747 | } |
7748 | } | |
9a935856 | 7749 | /* Now we've also updated encoder->new_crtc for all encoders. */ |
50f56119 | 7750 | |
2e431051 DV |
7751 | return 0; |
7752 | } | |
7753 | ||
7754 | static int intel_crtc_set_config(struct drm_mode_set *set) | |
7755 | { | |
7756 | struct drm_device *dev; | |
2e431051 DV |
7757 | struct drm_mode_set save_set; |
7758 | struct intel_set_config *config; | |
7759 | int ret; | |
2e431051 | 7760 | |
8d3e375e DV |
7761 | BUG_ON(!set); |
7762 | BUG_ON(!set->crtc); | |
7763 | BUG_ON(!set->crtc->helper_private); | |
2e431051 DV |
7764 | |
7765 | if (!set->mode) | |
7766 | set->fb = NULL; | |
7767 | ||
431e50f7 DV |
7768 | /* The fb helper likes to play gross jokes with ->mode_set_config. |
7769 | * Unfortunately the crtc helper doesn't do much at all for this case, | |
7770 | * so we have to cope with this madness until the fb helper is fixed up. */ | |
7771 | if (set->fb && set->num_connectors == 0) | |
7772 | return 0; | |
7773 | ||
2e431051 DV |
7774 | if (set->fb) { |
7775 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", | |
7776 | set->crtc->base.id, set->fb->base.id, | |
7777 | (int)set->num_connectors, set->x, set->y); | |
7778 | } else { | |
7779 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); | |
2e431051 DV |
7780 | } |
7781 | ||
7782 | dev = set->crtc->dev; | |
7783 | ||
7784 | ret = -ENOMEM; | |
7785 | config = kzalloc(sizeof(*config), GFP_KERNEL); | |
7786 | if (!config) | |
7787 | goto out_config; | |
7788 | ||
7789 | ret = intel_set_config_save_state(dev, config); | |
7790 | if (ret) | |
7791 | goto out_config; | |
7792 | ||
7793 | save_set.crtc = set->crtc; | |
7794 | save_set.mode = &set->crtc->mode; | |
7795 | save_set.x = set->crtc->x; | |
7796 | save_set.y = set->crtc->y; | |
7797 | save_set.fb = set->crtc->fb; | |
7798 | ||
7799 | /* Compute whether we need a full modeset, only an fb base update or no | |
7800 | * change at all. In the future we might also check whether only the | |
7801 | * mode changed, e.g. for LVDS where we only change the panel fitter in | |
7802 | * such cases. */ | |
7803 | intel_set_config_compute_mode_changes(set, config); | |
7804 | ||
9a935856 | 7805 | ret = intel_modeset_stage_output_state(dev, set, config); |
2e431051 DV |
7806 | if (ret) |
7807 | goto fail; | |
7808 | ||
5e2b584e | 7809 | if (config->mode_changed) { |
87f1faa6 | 7810 | if (set->mode) { |
50f56119 DV |
7811 | DRM_DEBUG_KMS("attempting to set mode from" |
7812 | " userspace\n"); | |
7813 | drm_mode_debug_printmodeline(set->mode); | |
87f1faa6 DV |
7814 | } |
7815 | ||
7816 | if (!intel_set_mode(set->crtc, set->mode, | |
7817 | set->x, set->y, set->fb)) { | |
7818 | DRM_ERROR("failed to set mode on [CRTC:%d]\n", | |
7819 | set->crtc->base.id); | |
7820 | ret = -EINVAL; | |
7821 | goto fail; | |
7822 | } | |
5e2b584e | 7823 | } else if (config->fb_changed) { |
4f660f49 | 7824 | ret = intel_pipe_set_base(set->crtc, |
94352cf9 | 7825 | set->x, set->y, set->fb); |
50f56119 DV |
7826 | } |
7827 | ||
d9e55608 DV |
7828 | intel_set_config_free(config); |
7829 | ||
50f56119 DV |
7830 | return 0; |
7831 | ||
7832 | fail: | |
85f9eb71 | 7833 | intel_set_config_restore_state(dev, config); |
50f56119 DV |
7834 | |
7835 | /* Try to restore the config */ | |
5e2b584e | 7836 | if (config->mode_changed && |
a6778b3c DV |
7837 | !intel_set_mode(save_set.crtc, save_set.mode, |
7838 | save_set.x, save_set.y, save_set.fb)) | |
50f56119 DV |
7839 | DRM_ERROR("failed to restore config after modeset failure\n"); |
7840 | ||
d9e55608 DV |
7841 | out_config: |
7842 | intel_set_config_free(config); | |
50f56119 DV |
7843 | return ret; |
7844 | } | |
7845 | ||
f6e5b160 | 7846 | static const struct drm_crtc_funcs intel_crtc_funcs = { |
f6e5b160 CW |
7847 | .cursor_set = intel_crtc_cursor_set, |
7848 | .cursor_move = intel_crtc_cursor_move, | |
7849 | .gamma_set = intel_crtc_gamma_set, | |
50f56119 | 7850 | .set_config = intel_crtc_set_config, |
f6e5b160 CW |
7851 | .destroy = intel_crtc_destroy, |
7852 | .page_flip = intel_crtc_page_flip, | |
7853 | }; | |
7854 | ||
79f689aa PZ |
7855 | static void intel_cpu_pll_init(struct drm_device *dev) |
7856 | { | |
7857 | if (IS_HASWELL(dev)) | |
7858 | intel_ddi_pll_init(dev); | |
7859 | } | |
7860 | ||
ee7b9f93 JB |
7861 | static void intel_pch_pll_init(struct drm_device *dev) |
7862 | { | |
7863 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7864 | int i; | |
7865 | ||
7866 | if (dev_priv->num_pch_pll == 0) { | |
7867 | DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n"); | |
7868 | return; | |
7869 | } | |
7870 | ||
7871 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
7872 | dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i); | |
7873 | dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i); | |
7874 | dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i); | |
7875 | } | |
7876 | } | |
7877 | ||
b358d0a6 | 7878 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 7879 | { |
22fd0fab | 7880 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
7881 | struct intel_crtc *intel_crtc; |
7882 | int i; | |
7883 | ||
7884 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
7885 | if (intel_crtc == NULL) | |
7886 | return; | |
7887 | ||
7888 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
7889 | ||
7890 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
7891 | for (i = 0; i < 256; i++) { |
7892 | intel_crtc->lut_r[i] = i; | |
7893 | intel_crtc->lut_g[i] = i; | |
7894 | intel_crtc->lut_b[i] = i; | |
7895 | } | |
7896 | ||
80824003 JB |
7897 | /* Swap pipes & planes for FBC on pre-965 */ |
7898 | intel_crtc->pipe = pipe; | |
7899 | intel_crtc->plane = pipe; | |
e2e767ab | 7900 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
28c97730 | 7901 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 7902 | intel_crtc->plane = !pipe; |
80824003 JB |
7903 | } |
7904 | ||
22fd0fab JB |
7905 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
7906 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
7907 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
7908 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
7909 | ||
5a354204 | 7910 | intel_crtc->bpp = 24; /* default for pre-Ironlake */ |
7e7d76c3 | 7911 | |
79e53945 | 7912 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
79e53945 JB |
7913 | } |
7914 | ||
08d7b3d1 | 7915 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 7916 | struct drm_file *file) |
08d7b3d1 | 7917 | { |
08d7b3d1 | 7918 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
c05422d5 DV |
7919 | struct drm_mode_object *drmmode_obj; |
7920 | struct intel_crtc *crtc; | |
08d7b3d1 | 7921 | |
1cff8f6b DV |
7922 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
7923 | return -ENODEV; | |
08d7b3d1 | 7924 | |
c05422d5 DV |
7925 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
7926 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 7927 | |
c05422d5 | 7928 | if (!drmmode_obj) { |
08d7b3d1 CW |
7929 | DRM_ERROR("no such CRTC id\n"); |
7930 | return -EINVAL; | |
7931 | } | |
7932 | ||
c05422d5 DV |
7933 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
7934 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 7935 | |
c05422d5 | 7936 | return 0; |
08d7b3d1 CW |
7937 | } |
7938 | ||
66a9278e | 7939 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 7940 | { |
66a9278e DV |
7941 | struct drm_device *dev = encoder->base.dev; |
7942 | struct intel_encoder *source_encoder; | |
79e53945 | 7943 | int index_mask = 0; |
79e53945 JB |
7944 | int entry = 0; |
7945 | ||
66a9278e DV |
7946 | list_for_each_entry(source_encoder, |
7947 | &dev->mode_config.encoder_list, base.head) { | |
7948 | ||
7949 | if (encoder == source_encoder) | |
79e53945 | 7950 | index_mask |= (1 << entry); |
66a9278e DV |
7951 | |
7952 | /* Intel hw has only one MUX where enocoders could be cloned. */ | |
7953 | if (encoder->cloneable && source_encoder->cloneable) | |
7954 | index_mask |= (1 << entry); | |
7955 | ||
79e53945 JB |
7956 | entry++; |
7957 | } | |
4ef69c7a | 7958 | |
79e53945 JB |
7959 | return index_mask; |
7960 | } | |
7961 | ||
4d302442 CW |
7962 | static bool has_edp_a(struct drm_device *dev) |
7963 | { | |
7964 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7965 | ||
7966 | if (!IS_MOBILE(dev)) | |
7967 | return false; | |
7968 | ||
7969 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
7970 | return false; | |
7971 | ||
7972 | if (IS_GEN5(dev) && | |
7973 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) | |
7974 | return false; | |
7975 | ||
7976 | return true; | |
7977 | } | |
7978 | ||
79e53945 JB |
7979 | static void intel_setup_outputs(struct drm_device *dev) |
7980 | { | |
725e30ad | 7981 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 7982 | struct intel_encoder *encoder; |
cb0953d7 | 7983 | bool dpd_is_edp = false; |
f3cfcba6 | 7984 | bool has_lvds; |
79e53945 | 7985 | |
f3cfcba6 | 7986 | has_lvds = intel_lvds_init(dev); |
c5d1b51d CW |
7987 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
7988 | /* disable the panel fitter on everything but LVDS */ | |
7989 | I915_WRITE(PFIT_CONTROL, 0); | |
7990 | } | |
79e53945 | 7991 | |
bad720ff | 7992 | if (HAS_PCH_SPLIT(dev)) { |
cb0953d7 | 7993 | dpd_is_edp = intel_dpd_is_edp(dev); |
30ad48b7 | 7994 | |
4d302442 | 7995 | if (has_edp_a(dev)) |
ab9d7c30 | 7996 | intel_dp_init(dev, DP_A, PORT_A); |
32f9d658 | 7997 | |
cb0953d7 | 7998 | if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
ab9d7c30 | 7999 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
cb0953d7 AJ |
8000 | } |
8001 | ||
8002 | intel_crt_init(dev); | |
8003 | ||
0e72a5b5 ED |
8004 | if (IS_HASWELL(dev)) { |
8005 | int found; | |
8006 | ||
8007 | /* Haswell uses DDI functions to detect digital outputs */ | |
8008 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; | |
8009 | /* DDI A only supports eDP */ | |
8010 | if (found) | |
8011 | intel_ddi_init(dev, PORT_A); | |
8012 | ||
8013 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
8014 | * register */ | |
8015 | found = I915_READ(SFUSE_STRAP); | |
8016 | ||
8017 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
8018 | intel_ddi_init(dev, PORT_B); | |
8019 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
8020 | intel_ddi_init(dev, PORT_C); | |
8021 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
8022 | intel_ddi_init(dev, PORT_D); | |
8023 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 AJ |
8024 | int found; |
8025 | ||
30ad48b7 | 8026 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
461ed3ca | 8027 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 8028 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 | 8029 | if (!found) |
08d644ad | 8030 | intel_hdmi_init(dev, HDMIB, PORT_B); |
5eb08b69 | 8031 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 8032 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
8033 | } |
8034 | ||
8035 | if (I915_READ(HDMIC) & PORT_DETECTED) | |
08d644ad | 8036 | intel_hdmi_init(dev, HDMIC, PORT_C); |
30ad48b7 | 8037 | |
b708a1d5 | 8038 | if (!dpd_is_edp && I915_READ(HDMID) & PORT_DETECTED) |
08d644ad | 8039 | intel_hdmi_init(dev, HDMID, PORT_D); |
30ad48b7 | 8040 | |
5eb08b69 | 8041 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 8042 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 8043 | |
cb0953d7 | 8044 | if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
ab9d7c30 | 8045 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
4a87d65d JB |
8046 | } else if (IS_VALLEYVIEW(dev)) { |
8047 | int found; | |
8048 | ||
19c03924 GB |
8049 | /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */ |
8050 | if (I915_READ(DP_C) & DP_DETECTED) | |
8051 | intel_dp_init(dev, DP_C, PORT_C); | |
8052 | ||
4a87d65d JB |
8053 | if (I915_READ(SDVOB) & PORT_DETECTED) { |
8054 | /* SDVOB multiplex with HDMIB */ | |
8055 | found = intel_sdvo_init(dev, SDVOB, true); | |
8056 | if (!found) | |
08d644ad | 8057 | intel_hdmi_init(dev, SDVOB, PORT_B); |
4a87d65d | 8058 | if (!found && (I915_READ(DP_B) & DP_DETECTED)) |
ab9d7c30 | 8059 | intel_dp_init(dev, DP_B, PORT_B); |
4a87d65d JB |
8060 | } |
8061 | ||
8062 | if (I915_READ(SDVOC) & PORT_DETECTED) | |
08d644ad | 8063 | intel_hdmi_init(dev, SDVOC, PORT_C); |
5eb08b69 | 8064 | |
103a196f | 8065 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 8066 | bool found = false; |
7d57382e | 8067 | |
725e30ad | 8068 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 8069 | DRM_DEBUG_KMS("probing SDVOB\n"); |
eef4eacb | 8070 | found = intel_sdvo_init(dev, SDVOB, true); |
b01f2c3a JB |
8071 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
8072 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
08d644ad | 8073 | intel_hdmi_init(dev, SDVOB, PORT_B); |
b01f2c3a | 8074 | } |
27185ae1 | 8075 | |
b01f2c3a JB |
8076 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
8077 | DRM_DEBUG_KMS("probing DP_B\n"); | |
ab9d7c30 | 8078 | intel_dp_init(dev, DP_B, PORT_B); |
b01f2c3a | 8079 | } |
725e30ad | 8080 | } |
13520b05 KH |
8081 | |
8082 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 8083 | |
b01f2c3a JB |
8084 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
8085 | DRM_DEBUG_KMS("probing SDVOC\n"); | |
eef4eacb | 8086 | found = intel_sdvo_init(dev, SDVOC, false); |
b01f2c3a | 8087 | } |
27185ae1 ML |
8088 | |
8089 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { | |
8090 | ||
b01f2c3a JB |
8091 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
8092 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
08d644ad | 8093 | intel_hdmi_init(dev, SDVOC, PORT_C); |
b01f2c3a JB |
8094 | } |
8095 | if (SUPPORTS_INTEGRATED_DP(dev)) { | |
8096 | DRM_DEBUG_KMS("probing DP_C\n"); | |
ab9d7c30 | 8097 | intel_dp_init(dev, DP_C, PORT_C); |
b01f2c3a | 8098 | } |
725e30ad | 8099 | } |
27185ae1 | 8100 | |
b01f2c3a JB |
8101 | if (SUPPORTS_INTEGRATED_DP(dev) && |
8102 | (I915_READ(DP_D) & DP_DETECTED)) { | |
8103 | DRM_DEBUG_KMS("probing DP_D\n"); | |
ab9d7c30 | 8104 | intel_dp_init(dev, DP_D, PORT_D); |
b01f2c3a | 8105 | } |
bad720ff | 8106 | } else if (IS_GEN2(dev)) |
79e53945 JB |
8107 | intel_dvo_init(dev); |
8108 | ||
103a196f | 8109 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
8110 | intel_tv_init(dev); |
8111 | ||
4ef69c7a CW |
8112 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
8113 | encoder->base.possible_crtcs = encoder->crtc_mask; | |
8114 | encoder->base.possible_clones = | |
66a9278e | 8115 | intel_encoder_clones(encoder); |
79e53945 | 8116 | } |
47356eb6 | 8117 | |
40579abe | 8118 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) |
9fb526db | 8119 | ironlake_init_pch_refclk(dev); |
79e53945 JB |
8120 | } |
8121 | ||
8122 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
8123 | { | |
8124 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
79e53945 JB |
8125 | |
8126 | drm_framebuffer_cleanup(fb); | |
05394f39 | 8127 | drm_gem_object_unreference_unlocked(&intel_fb->obj->base); |
79e53945 JB |
8128 | |
8129 | kfree(intel_fb); | |
8130 | } | |
8131 | ||
8132 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 8133 | struct drm_file *file, |
79e53945 JB |
8134 | unsigned int *handle) |
8135 | { | |
8136 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 8137 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 8138 | |
05394f39 | 8139 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
8140 | } |
8141 | ||
8142 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
8143 | .destroy = intel_user_framebuffer_destroy, | |
8144 | .create_handle = intel_user_framebuffer_create_handle, | |
8145 | }; | |
8146 | ||
38651674 DA |
8147 | int intel_framebuffer_init(struct drm_device *dev, |
8148 | struct intel_framebuffer *intel_fb, | |
308e5bcb | 8149 | struct drm_mode_fb_cmd2 *mode_cmd, |
05394f39 | 8150 | struct drm_i915_gem_object *obj) |
79e53945 | 8151 | { |
79e53945 JB |
8152 | int ret; |
8153 | ||
05394f39 | 8154 | if (obj->tiling_mode == I915_TILING_Y) |
57cd6508 CW |
8155 | return -EINVAL; |
8156 | ||
308e5bcb | 8157 | if (mode_cmd->pitches[0] & 63) |
57cd6508 CW |
8158 | return -EINVAL; |
8159 | ||
308e5bcb | 8160 | switch (mode_cmd->pixel_format) { |
04b3924d VS |
8161 | case DRM_FORMAT_RGB332: |
8162 | case DRM_FORMAT_RGB565: | |
8163 | case DRM_FORMAT_XRGB8888: | |
b250da79 | 8164 | case DRM_FORMAT_XBGR8888: |
04b3924d VS |
8165 | case DRM_FORMAT_ARGB8888: |
8166 | case DRM_FORMAT_XRGB2101010: | |
8167 | case DRM_FORMAT_ARGB2101010: | |
308e5bcb | 8168 | /* RGB formats are common across chipsets */ |
b5626747 | 8169 | break; |
04b3924d VS |
8170 | case DRM_FORMAT_YUYV: |
8171 | case DRM_FORMAT_UYVY: | |
8172 | case DRM_FORMAT_YVYU: | |
8173 | case DRM_FORMAT_VYUY: | |
57cd6508 CW |
8174 | break; |
8175 | default: | |
aca25848 ED |
8176 | DRM_DEBUG_KMS("unsupported pixel format %u\n", |
8177 | mode_cmd->pixel_format); | |
57cd6508 CW |
8178 | return -EINVAL; |
8179 | } | |
8180 | ||
79e53945 JB |
8181 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
8182 | if (ret) { | |
8183 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
8184 | return ret; | |
8185 | } | |
8186 | ||
8187 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); | |
79e53945 | 8188 | intel_fb->obj = obj; |
79e53945 JB |
8189 | return 0; |
8190 | } | |
8191 | ||
79e53945 JB |
8192 | static struct drm_framebuffer * |
8193 | intel_user_framebuffer_create(struct drm_device *dev, | |
8194 | struct drm_file *filp, | |
308e5bcb | 8195 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 8196 | { |
05394f39 | 8197 | struct drm_i915_gem_object *obj; |
79e53945 | 8198 | |
308e5bcb JB |
8199 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
8200 | mode_cmd->handles[0])); | |
c8725226 | 8201 | if (&obj->base == NULL) |
cce13ff7 | 8202 | return ERR_PTR(-ENOENT); |
79e53945 | 8203 | |
d2dff872 | 8204 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
8205 | } |
8206 | ||
79e53945 | 8207 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 8208 | .fb_create = intel_user_framebuffer_create, |
eb1f8e4f | 8209 | .output_poll_changed = intel_fb_output_poll_changed, |
79e53945 JB |
8210 | }; |
8211 | ||
e70236a8 JB |
8212 | /* Set up chip specific display functions */ |
8213 | static void intel_init_display(struct drm_device *dev) | |
8214 | { | |
8215 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8216 | ||
8217 | /* We always want a DPMS function */ | |
09b4ddf9 PZ |
8218 | if (IS_HASWELL(dev)) { |
8219 | dev_priv->display.crtc_mode_set = haswell_crtc_mode_set; | |
4f771f10 PZ |
8220 | dev_priv->display.crtc_enable = haswell_crtc_enable; |
8221 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
6441ab5f | 8222 | dev_priv->display.off = haswell_crtc_off; |
09b4ddf9 PZ |
8223 | dev_priv->display.update_plane = ironlake_update_plane; |
8224 | } else if (HAS_PCH_SPLIT(dev)) { | |
f564048e | 8225 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
76e5a89c DV |
8226 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
8227 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
ee7b9f93 | 8228 | dev_priv->display.off = ironlake_crtc_off; |
17638cd6 | 8229 | dev_priv->display.update_plane = ironlake_update_plane; |
f564048e | 8230 | } else { |
f564048e | 8231 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
76e5a89c DV |
8232 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
8233 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
ee7b9f93 | 8234 | dev_priv->display.off = i9xx_crtc_off; |
17638cd6 | 8235 | dev_priv->display.update_plane = i9xx_update_plane; |
f564048e | 8236 | } |
e70236a8 | 8237 | |
e70236a8 | 8238 | /* Returns the core display clock speed */ |
25eb05fc JB |
8239 | if (IS_VALLEYVIEW(dev)) |
8240 | dev_priv->display.get_display_clock_speed = | |
8241 | valleyview_get_display_clock_speed; | |
8242 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) | |
e70236a8 JB |
8243 | dev_priv->display.get_display_clock_speed = |
8244 | i945_get_display_clock_speed; | |
8245 | else if (IS_I915G(dev)) | |
8246 | dev_priv->display.get_display_clock_speed = | |
8247 | i915_get_display_clock_speed; | |
f2b115e6 | 8248 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
8249 | dev_priv->display.get_display_clock_speed = |
8250 | i9xx_misc_get_display_clock_speed; | |
8251 | else if (IS_I915GM(dev)) | |
8252 | dev_priv->display.get_display_clock_speed = | |
8253 | i915gm_get_display_clock_speed; | |
8254 | else if (IS_I865G(dev)) | |
8255 | dev_priv->display.get_display_clock_speed = | |
8256 | i865_get_display_clock_speed; | |
f0f8a9ce | 8257 | else if (IS_I85X(dev)) |
e70236a8 JB |
8258 | dev_priv->display.get_display_clock_speed = |
8259 | i855_get_display_clock_speed; | |
8260 | else /* 852, 830 */ | |
8261 | dev_priv->display.get_display_clock_speed = | |
8262 | i830_get_display_clock_speed; | |
8263 | ||
7f8a8569 | 8264 | if (HAS_PCH_SPLIT(dev)) { |
f00a3ddf | 8265 | if (IS_GEN5(dev)) { |
674cf967 | 8266 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
e0dac65e | 8267 | dev_priv->display.write_eld = ironlake_write_eld; |
1398261a | 8268 | } else if (IS_GEN6(dev)) { |
674cf967 | 8269 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
e0dac65e | 8270 | dev_priv->display.write_eld = ironlake_write_eld; |
357555c0 JB |
8271 | } else if (IS_IVYBRIDGE(dev)) { |
8272 | /* FIXME: detect B0+ stepping and use auto training */ | |
8273 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
e0dac65e | 8274 | dev_priv->display.write_eld = ironlake_write_eld; |
c82e4d26 ED |
8275 | } else if (IS_HASWELL(dev)) { |
8276 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; | |
83358c85 | 8277 | dev_priv->display.write_eld = haswell_write_eld; |
7f8a8569 ZW |
8278 | } else |
8279 | dev_priv->display.update_wm = NULL; | |
6067aaea | 8280 | } else if (IS_G4X(dev)) { |
e0dac65e | 8281 | dev_priv->display.write_eld = g4x_write_eld; |
e70236a8 | 8282 | } |
8c9f3aaf JB |
8283 | |
8284 | /* Default just returns -ENODEV to indicate unsupported */ | |
8285 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
8286 | ||
8287 | switch (INTEL_INFO(dev)->gen) { | |
8288 | case 2: | |
8289 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
8290 | break; | |
8291 | ||
8292 | case 3: | |
8293 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
8294 | break; | |
8295 | ||
8296 | case 4: | |
8297 | case 5: | |
8298 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
8299 | break; | |
8300 | ||
8301 | case 6: | |
8302 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
8303 | break; | |
7c9017e5 JB |
8304 | case 7: |
8305 | dev_priv->display.queue_flip = intel_gen7_queue_flip; | |
8306 | break; | |
8c9f3aaf | 8307 | } |
e70236a8 JB |
8308 | } |
8309 | ||
b690e96c JB |
8310 | /* |
8311 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
8312 | * resume, or other times. This quirk makes sure that's the case for | |
8313 | * affected systems. | |
8314 | */ | |
0206e353 | 8315 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
8316 | { |
8317 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8318 | ||
8319 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 8320 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
8321 | } |
8322 | ||
435793df KP |
8323 | /* |
8324 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
8325 | */ | |
8326 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
8327 | { | |
8328 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8329 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 8330 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
8331 | } |
8332 | ||
4dca20ef | 8333 | /* |
5a15ab5b CE |
8334 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
8335 | * brightness value | |
4dca20ef CE |
8336 | */ |
8337 | static void quirk_invert_brightness(struct drm_device *dev) | |
8338 | { | |
8339 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8340 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 8341 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
8342 | } |
8343 | ||
b690e96c JB |
8344 | struct intel_quirk { |
8345 | int device; | |
8346 | int subsystem_vendor; | |
8347 | int subsystem_device; | |
8348 | void (*hook)(struct drm_device *dev); | |
8349 | }; | |
8350 | ||
c43b5634 | 8351 | static struct intel_quirk intel_quirks[] = { |
b690e96c | 8352 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
0206e353 | 8353 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
b690e96c | 8354 | |
b690e96c JB |
8355 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
8356 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
8357 | ||
b690e96c JB |
8358 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
8359 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
8360 | ||
ccd0d36e | 8361 | /* 830/845 need to leave pipe A & dpll A up */ |
b690e96c | 8362 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
dcdaed6e | 8363 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
435793df KP |
8364 | |
8365 | /* Lenovo U160 cannot use SSC on LVDS */ | |
8366 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
8367 | |
8368 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
8369 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b CE |
8370 | |
8371 | /* Acer Aspire 5734Z must invert backlight brightness */ | |
8372 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
b690e96c JB |
8373 | }; |
8374 | ||
8375 | static void intel_init_quirks(struct drm_device *dev) | |
8376 | { | |
8377 | struct pci_dev *d = dev->pdev; | |
8378 | int i; | |
8379 | ||
8380 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
8381 | struct intel_quirk *q = &intel_quirks[i]; | |
8382 | ||
8383 | if (d->device == q->device && | |
8384 | (d->subsystem_vendor == q->subsystem_vendor || | |
8385 | q->subsystem_vendor == PCI_ANY_ID) && | |
8386 | (d->subsystem_device == q->subsystem_device || | |
8387 | q->subsystem_device == PCI_ANY_ID)) | |
8388 | q->hook(dev); | |
8389 | } | |
8390 | } | |
8391 | ||
9cce37f4 JB |
8392 | /* Disable the VGA plane that we never use */ |
8393 | static void i915_disable_vga(struct drm_device *dev) | |
8394 | { | |
8395 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8396 | u8 sr1; | |
8397 | u32 vga_reg; | |
8398 | ||
8399 | if (HAS_PCH_SPLIT(dev)) | |
8400 | vga_reg = CPU_VGACNTRL; | |
8401 | else | |
8402 | vga_reg = VGACNTRL; | |
8403 | ||
8404 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); | |
3fdcf431 | 8405 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
8406 | sr1 = inb(VGA_SR_DATA); |
8407 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
8408 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
8409 | udelay(300); | |
8410 | ||
8411 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
8412 | POSTING_READ(vga_reg); | |
8413 | } | |
8414 | ||
f817586c DV |
8415 | void intel_modeset_init_hw(struct drm_device *dev) |
8416 | { | |
0232e927 ED |
8417 | /* We attempt to init the necessary power wells early in the initialization |
8418 | * time, so the subsystems that expect power to be enabled can work. | |
8419 | */ | |
8420 | intel_init_power_wells(dev); | |
8421 | ||
a8f78b58 ED |
8422 | intel_prepare_ddi(dev); |
8423 | ||
f817586c DV |
8424 | intel_init_clock_gating(dev); |
8425 | ||
79f5b2c7 | 8426 | mutex_lock(&dev->struct_mutex); |
8090c6b9 | 8427 | intel_enable_gt_powersave(dev); |
79f5b2c7 | 8428 | mutex_unlock(&dev->struct_mutex); |
f817586c DV |
8429 | } |
8430 | ||
79e53945 JB |
8431 | void intel_modeset_init(struct drm_device *dev) |
8432 | { | |
652c393a | 8433 | struct drm_i915_private *dev_priv = dev->dev_private; |
b840d907 | 8434 | int i, ret; |
79e53945 JB |
8435 | |
8436 | drm_mode_config_init(dev); | |
8437 | ||
8438 | dev->mode_config.min_width = 0; | |
8439 | dev->mode_config.min_height = 0; | |
8440 | ||
019d96cb DA |
8441 | dev->mode_config.preferred_depth = 24; |
8442 | dev->mode_config.prefer_shadow = 1; | |
8443 | ||
e6ecefaa | 8444 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 8445 | |
b690e96c JB |
8446 | intel_init_quirks(dev); |
8447 | ||
1fa61106 ED |
8448 | intel_init_pm(dev); |
8449 | ||
e70236a8 JB |
8450 | intel_init_display(dev); |
8451 | ||
a6c45cf0 CW |
8452 | if (IS_GEN2(dev)) { |
8453 | dev->mode_config.max_width = 2048; | |
8454 | dev->mode_config.max_height = 2048; | |
8455 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
8456 | dev->mode_config.max_width = 4096; |
8457 | dev->mode_config.max_height = 4096; | |
79e53945 | 8458 | } else { |
a6c45cf0 CW |
8459 | dev->mode_config.max_width = 8192; |
8460 | dev->mode_config.max_height = 8192; | |
79e53945 | 8461 | } |
dd2757f8 | 8462 | dev->mode_config.fb_base = dev_priv->mm.gtt_base_addr; |
79e53945 | 8463 | |
28c97730 | 8464 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
a3524f1b | 8465 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
79e53945 | 8466 | |
a3524f1b | 8467 | for (i = 0; i < dev_priv->num_pipe; i++) { |
79e53945 | 8468 | intel_crtc_init(dev, i); |
00c2064b JB |
8469 | ret = intel_plane_init(dev, i); |
8470 | if (ret) | |
8471 | DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret); | |
79e53945 JB |
8472 | } |
8473 | ||
79f689aa | 8474 | intel_cpu_pll_init(dev); |
ee7b9f93 JB |
8475 | intel_pch_pll_init(dev); |
8476 | ||
9cce37f4 JB |
8477 | /* Just disable it once at startup */ |
8478 | i915_disable_vga(dev); | |
79e53945 | 8479 | intel_setup_outputs(dev); |
2c7111db CW |
8480 | } |
8481 | ||
24929352 DV |
8482 | static void |
8483 | intel_connector_break_all_links(struct intel_connector *connector) | |
8484 | { | |
8485 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
8486 | connector->base.encoder = NULL; | |
8487 | connector->encoder->connectors_active = false; | |
8488 | connector->encoder->base.crtc = NULL; | |
8489 | } | |
8490 | ||
7fad798e DV |
8491 | static void intel_enable_pipe_a(struct drm_device *dev) |
8492 | { | |
8493 | struct intel_connector *connector; | |
8494 | struct drm_connector *crt = NULL; | |
8495 | struct intel_load_detect_pipe load_detect_temp; | |
8496 | ||
8497 | /* We can't just switch on the pipe A, we need to set things up with a | |
8498 | * proper mode and output configuration. As a gross hack, enable pipe A | |
8499 | * by enabling the load detect pipe once. */ | |
8500 | list_for_each_entry(connector, | |
8501 | &dev->mode_config.connector_list, | |
8502 | base.head) { | |
8503 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { | |
8504 | crt = &connector->base; | |
8505 | break; | |
8506 | } | |
8507 | } | |
8508 | ||
8509 | if (!crt) | |
8510 | return; | |
8511 | ||
8512 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp)) | |
8513 | intel_release_load_detect_pipe(crt, &load_detect_temp); | |
8514 | ||
8515 | ||
8516 | } | |
8517 | ||
fa555837 DV |
8518 | static bool |
8519 | intel_check_plane_mapping(struct intel_crtc *crtc) | |
8520 | { | |
8521 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
8522 | u32 reg, val; | |
8523 | ||
8524 | if (dev_priv->num_pipe == 1) | |
8525 | return true; | |
8526 | ||
8527 | reg = DSPCNTR(!crtc->plane); | |
8528 | val = I915_READ(reg); | |
8529 | ||
8530 | if ((val & DISPLAY_PLANE_ENABLE) && | |
8531 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
8532 | return false; | |
8533 | ||
8534 | return true; | |
8535 | } | |
8536 | ||
24929352 DV |
8537 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
8538 | { | |
8539 | struct drm_device *dev = crtc->base.dev; | |
8540 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 | 8541 | u32 reg; |
24929352 | 8542 | |
24929352 DV |
8543 | /* Clear any frame start delays used for debugging left by the BIOS */ |
8544 | reg = PIPECONF(crtc->pipe); | |
8545 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); | |
8546 | ||
8547 | /* We need to sanitize the plane -> pipe mapping first because this will | |
fa555837 DV |
8548 | * disable the crtc (and hence change the state) if it is wrong. Note |
8549 | * that gen4+ has a fixed plane -> pipe mapping. */ | |
8550 | if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) { | |
24929352 DV |
8551 | struct intel_connector *connector; |
8552 | bool plane; | |
8553 | ||
24929352 DV |
8554 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", |
8555 | crtc->base.base.id); | |
8556 | ||
8557 | /* Pipe has the wrong plane attached and the plane is active. | |
8558 | * Temporarily change the plane mapping and disable everything | |
8559 | * ... */ | |
8560 | plane = crtc->plane; | |
8561 | crtc->plane = !plane; | |
8562 | dev_priv->display.crtc_disable(&crtc->base); | |
8563 | crtc->plane = plane; | |
8564 | ||
8565 | /* ... and break all links. */ | |
8566 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
8567 | base.head) { | |
8568 | if (connector->encoder->base.crtc != &crtc->base) | |
8569 | continue; | |
8570 | ||
8571 | intel_connector_break_all_links(connector); | |
8572 | } | |
8573 | ||
8574 | WARN_ON(crtc->active); | |
8575 | crtc->base.enabled = false; | |
8576 | } | |
24929352 | 8577 | |
7fad798e DV |
8578 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
8579 | crtc->pipe == PIPE_A && !crtc->active) { | |
8580 | /* BIOS forgot to enable pipe A, this mostly happens after | |
8581 | * resume. Force-enable the pipe to fix this, the update_dpms | |
8582 | * call below we restore the pipe to the right state, but leave | |
8583 | * the required bits on. */ | |
8584 | intel_enable_pipe_a(dev); | |
8585 | } | |
8586 | ||
24929352 DV |
8587 | /* Adjust the state of the output pipe according to whether we |
8588 | * have active connectors/encoders. */ | |
8589 | intel_crtc_update_dpms(&crtc->base); | |
8590 | ||
8591 | if (crtc->active != crtc->base.enabled) { | |
8592 | struct intel_encoder *encoder; | |
8593 | ||
8594 | /* This can happen either due to bugs in the get_hw_state | |
8595 | * functions or because the pipe is force-enabled due to the | |
8596 | * pipe A quirk. */ | |
8597 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", | |
8598 | crtc->base.base.id, | |
8599 | crtc->base.enabled ? "enabled" : "disabled", | |
8600 | crtc->active ? "enabled" : "disabled"); | |
8601 | ||
8602 | crtc->base.enabled = crtc->active; | |
8603 | ||
8604 | /* Because we only establish the connector -> encoder -> | |
8605 | * crtc links if something is active, this means the | |
8606 | * crtc is now deactivated. Break the links. connector | |
8607 | * -> encoder links are only establish when things are | |
8608 | * actually up, hence no need to break them. */ | |
8609 | WARN_ON(crtc->active); | |
8610 | ||
8611 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { | |
8612 | WARN_ON(encoder->connectors_active); | |
8613 | encoder->base.crtc = NULL; | |
8614 | } | |
8615 | } | |
8616 | } | |
8617 | ||
8618 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
8619 | { | |
8620 | struct intel_connector *connector; | |
8621 | struct drm_device *dev = encoder->base.dev; | |
8622 | ||
8623 | /* We need to check both for a crtc link (meaning that the | |
8624 | * encoder is active and trying to read from a pipe) and the | |
8625 | * pipe itself being active. */ | |
8626 | bool has_active_crtc = encoder->base.crtc && | |
8627 | to_intel_crtc(encoder->base.crtc)->active; | |
8628 | ||
8629 | if (encoder->connectors_active && !has_active_crtc) { | |
8630 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", | |
8631 | encoder->base.base.id, | |
8632 | drm_get_encoder_name(&encoder->base)); | |
8633 | ||
8634 | /* Connector is active, but has no active pipe. This is | |
8635 | * fallout from our resume register restoring. Disable | |
8636 | * the encoder manually again. */ | |
8637 | if (encoder->base.crtc) { | |
8638 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
8639 | encoder->base.base.id, | |
8640 | drm_get_encoder_name(&encoder->base)); | |
8641 | encoder->disable(encoder); | |
8642 | } | |
8643 | ||
8644 | /* Inconsistent output/port/pipe state happens presumably due to | |
8645 | * a bug in one of the get_hw_state functions. Or someplace else | |
8646 | * in our code, like the register restore mess on resume. Clamp | |
8647 | * things to off as a safer default. */ | |
8648 | list_for_each_entry(connector, | |
8649 | &dev->mode_config.connector_list, | |
8650 | base.head) { | |
8651 | if (connector->encoder != encoder) | |
8652 | continue; | |
8653 | ||
8654 | intel_connector_break_all_links(connector); | |
8655 | } | |
8656 | } | |
8657 | /* Enabled encoders without active connectors will be fixed in | |
8658 | * the crtc fixup. */ | |
8659 | } | |
8660 | ||
8661 | /* Scan out the current hw modeset state, sanitizes it and maps it into the drm | |
8662 | * and i915 state tracking structures. */ | |
8663 | void intel_modeset_setup_hw_state(struct drm_device *dev) | |
8664 | { | |
8665 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8666 | enum pipe pipe; | |
8667 | u32 tmp; | |
8668 | struct intel_crtc *crtc; | |
8669 | struct intel_encoder *encoder; | |
8670 | struct intel_connector *connector; | |
8671 | ||
8672 | for_each_pipe(pipe) { | |
8673 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
8674 | ||
8675 | tmp = I915_READ(PIPECONF(pipe)); | |
8676 | if (tmp & PIPECONF_ENABLE) | |
8677 | crtc->active = true; | |
8678 | else | |
8679 | crtc->active = false; | |
8680 | ||
8681 | crtc->base.enabled = crtc->active; | |
8682 | ||
8683 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
8684 | crtc->base.base.id, | |
8685 | crtc->active ? "enabled" : "disabled"); | |
8686 | } | |
8687 | ||
6441ab5f PZ |
8688 | if (IS_HASWELL(dev)) |
8689 | intel_ddi_setup_hw_pll_state(dev); | |
8690 | ||
24929352 DV |
8691 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
8692 | base.head) { | |
8693 | pipe = 0; | |
8694 | ||
8695 | if (encoder->get_hw_state(encoder, &pipe)) { | |
8696 | encoder->base.crtc = | |
8697 | dev_priv->pipe_to_crtc_mapping[pipe]; | |
8698 | } else { | |
8699 | encoder->base.crtc = NULL; | |
8700 | } | |
8701 | ||
8702 | encoder->connectors_active = false; | |
8703 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n", | |
8704 | encoder->base.base.id, | |
8705 | drm_get_encoder_name(&encoder->base), | |
8706 | encoder->base.crtc ? "enabled" : "disabled", | |
8707 | pipe); | |
8708 | } | |
8709 | ||
8710 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
8711 | base.head) { | |
8712 | if (connector->get_hw_state(connector)) { | |
8713 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
8714 | connector->encoder->connectors_active = true; | |
8715 | connector->base.encoder = &connector->encoder->base; | |
8716 | } else { | |
8717 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
8718 | connector->base.encoder = NULL; | |
8719 | } | |
8720 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
8721 | connector->base.base.id, | |
8722 | drm_get_connector_name(&connector->base), | |
8723 | connector->base.encoder ? "enabled" : "disabled"); | |
8724 | } | |
8725 | ||
8726 | /* HW state is read out, now we need to sanitize this mess. */ | |
8727 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8728 | base.head) { | |
8729 | intel_sanitize_encoder(encoder); | |
8730 | } | |
8731 | ||
8732 | for_each_pipe(pipe) { | |
8733 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
8734 | intel_sanitize_crtc(crtc); | |
8735 | } | |
9a935856 DV |
8736 | |
8737 | intel_modeset_update_staged_output_state(dev); | |
8af6cf88 DV |
8738 | |
8739 | intel_modeset_check_state(dev); | |
2e938892 DV |
8740 | |
8741 | drm_mode_config_reset(dev); | |
24929352 DV |
8742 | } |
8743 | ||
2c7111db CW |
8744 | void intel_modeset_gem_init(struct drm_device *dev) |
8745 | { | |
1833b134 | 8746 | intel_modeset_init_hw(dev); |
02e792fb DV |
8747 | |
8748 | intel_setup_overlay(dev); | |
24929352 DV |
8749 | |
8750 | intel_modeset_setup_hw_state(dev); | |
79e53945 JB |
8751 | } |
8752 | ||
8753 | void intel_modeset_cleanup(struct drm_device *dev) | |
8754 | { | |
652c393a JB |
8755 | struct drm_i915_private *dev_priv = dev->dev_private; |
8756 | struct drm_crtc *crtc; | |
8757 | struct intel_crtc *intel_crtc; | |
8758 | ||
f87ea761 | 8759 | drm_kms_helper_poll_fini(dev); |
652c393a JB |
8760 | mutex_lock(&dev->struct_mutex); |
8761 | ||
723bfd70 JB |
8762 | intel_unregister_dsm_handler(); |
8763 | ||
8764 | ||
652c393a JB |
8765 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
8766 | /* Skip inactive CRTCs */ | |
8767 | if (!crtc->fb) | |
8768 | continue; | |
8769 | ||
8770 | intel_crtc = to_intel_crtc(crtc); | |
3dec0095 | 8771 | intel_increase_pllclock(crtc); |
652c393a JB |
8772 | } |
8773 | ||
973d04f9 | 8774 | intel_disable_fbc(dev); |
e70236a8 | 8775 | |
8090c6b9 | 8776 | intel_disable_gt_powersave(dev); |
0cdab21f | 8777 | |
930ebb46 DV |
8778 | ironlake_teardown_rc6(dev); |
8779 | ||
57f350b6 JB |
8780 | if (IS_VALLEYVIEW(dev)) |
8781 | vlv_init_dpio(dev); | |
8782 | ||
69341a5e KH |
8783 | mutex_unlock(&dev->struct_mutex); |
8784 | ||
6c0d9350 DV |
8785 | /* Disable the irq before mode object teardown, for the irq might |
8786 | * enqueue unpin/hotplug work. */ | |
8787 | drm_irq_uninstall(dev); | |
8788 | cancel_work_sync(&dev_priv->hotplug_work); | |
c6a828d3 | 8789 | cancel_work_sync(&dev_priv->rps.work); |
6c0d9350 | 8790 | |
1630fe75 CW |
8791 | /* flush any delayed tasks or pending work */ |
8792 | flush_scheduled_work(); | |
8793 | ||
79e53945 JB |
8794 | drm_mode_config_cleanup(dev); |
8795 | } | |
8796 | ||
f1c79df3 ZW |
8797 | /* |
8798 | * Return which encoder is currently attached for connector. | |
8799 | */ | |
df0e9248 | 8800 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 8801 | { |
df0e9248 CW |
8802 | return &intel_attached_encoder(connector)->base; |
8803 | } | |
f1c79df3 | 8804 | |
df0e9248 CW |
8805 | void intel_connector_attach_encoder(struct intel_connector *connector, |
8806 | struct intel_encoder *encoder) | |
8807 | { | |
8808 | connector->encoder = encoder; | |
8809 | drm_mode_connector_attach_encoder(&connector->base, | |
8810 | &encoder->base); | |
79e53945 | 8811 | } |
28d52043 DA |
8812 | |
8813 | /* | |
8814 | * set vga decode state - true == enable VGA decode | |
8815 | */ | |
8816 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
8817 | { | |
8818 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8819 | u16 gmch_ctrl; | |
8820 | ||
8821 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
8822 | if (state) | |
8823 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
8824 | else | |
8825 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
8826 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
8827 | return 0; | |
8828 | } | |
c4a1d9e4 CW |
8829 | |
8830 | #ifdef CONFIG_DEBUG_FS | |
8831 | #include <linux/seq_file.h> | |
8832 | ||
8833 | struct intel_display_error_state { | |
8834 | struct intel_cursor_error_state { | |
8835 | u32 control; | |
8836 | u32 position; | |
8837 | u32 base; | |
8838 | u32 size; | |
52331309 | 8839 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
8840 | |
8841 | struct intel_pipe_error_state { | |
8842 | u32 conf; | |
8843 | u32 source; | |
8844 | ||
8845 | u32 htotal; | |
8846 | u32 hblank; | |
8847 | u32 hsync; | |
8848 | u32 vtotal; | |
8849 | u32 vblank; | |
8850 | u32 vsync; | |
52331309 | 8851 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
8852 | |
8853 | struct intel_plane_error_state { | |
8854 | u32 control; | |
8855 | u32 stride; | |
8856 | u32 size; | |
8857 | u32 pos; | |
8858 | u32 addr; | |
8859 | u32 surface; | |
8860 | u32 tile_offset; | |
52331309 | 8861 | } plane[I915_MAX_PIPES]; |
c4a1d9e4 CW |
8862 | }; |
8863 | ||
8864 | struct intel_display_error_state * | |
8865 | intel_display_capture_error_state(struct drm_device *dev) | |
8866 | { | |
0206e353 | 8867 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
8868 | struct intel_display_error_state *error; |
8869 | int i; | |
8870 | ||
8871 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
8872 | if (error == NULL) | |
8873 | return NULL; | |
8874 | ||
52331309 | 8875 | for_each_pipe(i) { |
c4a1d9e4 CW |
8876 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
8877 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
8878 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
8879 | ||
8880 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
8881 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
8882 | error->plane[i].size = I915_READ(DSPSIZE(i)); | |
0206e353 | 8883 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
c4a1d9e4 CW |
8884 | error->plane[i].addr = I915_READ(DSPADDR(i)); |
8885 | if (INTEL_INFO(dev)->gen >= 4) { | |
8886 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
8887 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
8888 | } | |
8889 | ||
8890 | error->pipe[i].conf = I915_READ(PIPECONF(i)); | |
8891 | error->pipe[i].source = I915_READ(PIPESRC(i)); | |
8892 | error->pipe[i].htotal = I915_READ(HTOTAL(i)); | |
8893 | error->pipe[i].hblank = I915_READ(HBLANK(i)); | |
8894 | error->pipe[i].hsync = I915_READ(HSYNC(i)); | |
8895 | error->pipe[i].vtotal = I915_READ(VTOTAL(i)); | |
8896 | error->pipe[i].vblank = I915_READ(VBLANK(i)); | |
8897 | error->pipe[i].vsync = I915_READ(VSYNC(i)); | |
8898 | } | |
8899 | ||
8900 | return error; | |
8901 | } | |
8902 | ||
8903 | void | |
8904 | intel_display_print_error_state(struct seq_file *m, | |
8905 | struct drm_device *dev, | |
8906 | struct intel_display_error_state *error) | |
8907 | { | |
52331309 | 8908 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
8909 | int i; |
8910 | ||
52331309 DL |
8911 | seq_printf(m, "Num Pipes: %d\n", dev_priv->num_pipe); |
8912 | for_each_pipe(i) { | |
c4a1d9e4 CW |
8913 | seq_printf(m, "Pipe [%d]:\n", i); |
8914 | seq_printf(m, " CONF: %08x\n", error->pipe[i].conf); | |
8915 | seq_printf(m, " SRC: %08x\n", error->pipe[i].source); | |
8916 | seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); | |
8917 | seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); | |
8918 | seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); | |
8919 | seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); | |
8920 | seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); | |
8921 | seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); | |
8922 | ||
8923 | seq_printf(m, "Plane [%d]:\n", i); | |
8924 | seq_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
8925 | seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
8926 | seq_printf(m, " SIZE: %08x\n", error->plane[i].size); | |
8927 | seq_printf(m, " POS: %08x\n", error->plane[i].pos); | |
8928 | seq_printf(m, " ADDR: %08x\n", error->plane[i].addr); | |
8929 | if (INTEL_INFO(dev)->gen >= 4) { | |
8930 | seq_printf(m, " SURF: %08x\n", error->plane[i].surface); | |
8931 | seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
8932 | } | |
8933 | ||
8934 | seq_printf(m, "Cursor [%d]:\n", i); | |
8935 | seq_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
8936 | seq_printf(m, " POS: %08x\n", error->cursor[i].position); | |
8937 | seq_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
8938 | } | |
8939 | } | |
8940 | #endif |