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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> |
79e53945 JB |
35 | #include "drmP.h" |
36 | #include "intel_drv.h" | |
37 | #include "i915_drm.h" | |
38 | #include "i915_drv.h" | |
e5510fac | 39 | #include "i915_trace.h" |
ab2c0672 | 40 | #include "drm_dp_helper.h" |
79e53945 | 41 | #include "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 | ||
d4906093 ML |
83 | static bool |
84 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
85 | int target, int refclk, intel_clock_t *match_clock, |
86 | intel_clock_t *best_clock); | |
d4906093 ML |
87 | static bool |
88 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
89 | int target, int refclk, intel_clock_t *match_clock, |
90 | intel_clock_t *best_clock); | |
79e53945 | 91 | |
a4fc5ed6 KP |
92 | static bool |
93 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, | |
cec2f356 SP |
94 | int target, int refclk, intel_clock_t *match_clock, |
95 | intel_clock_t *best_clock); | |
5eb08b69 | 96 | static bool |
f2b115e6 | 97 | intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc, |
cec2f356 SP |
98 | int target, int refclk, intel_clock_t *match_clock, |
99 | intel_clock_t *best_clock); | |
a4fc5ed6 | 100 | |
a0c4da24 JB |
101 | static bool |
102 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
103 | int target, int refclk, intel_clock_t *match_clock, | |
104 | intel_clock_t *best_clock); | |
105 | ||
021357ac CW |
106 | static inline u32 /* units of 100MHz */ |
107 | intel_fdi_link_freq(struct drm_device *dev) | |
108 | { | |
8b99e68c CW |
109 | if (IS_GEN5(dev)) { |
110 | struct drm_i915_private *dev_priv = dev->dev_private; | |
111 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
112 | } else | |
113 | return 27; | |
021357ac CW |
114 | } |
115 | ||
e4b36699 | 116 | static const intel_limit_t intel_limits_i8xx_dvo = { |
0206e353 AJ |
117 | .dot = { .min = 25000, .max = 350000 }, |
118 | .vco = { .min = 930000, .max = 1400000 }, | |
119 | .n = { .min = 3, .max = 16 }, | |
120 | .m = { .min = 96, .max = 140 }, | |
121 | .m1 = { .min = 18, .max = 26 }, | |
122 | .m2 = { .min = 6, .max = 16 }, | |
123 | .p = { .min = 4, .max = 128 }, | |
124 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
125 | .p2 = { .dot_limit = 165000, |
126 | .p2_slow = 4, .p2_fast = 2 }, | |
d4906093 | 127 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
128 | }; |
129 | ||
130 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
0206e353 AJ |
131 | .dot = { .min = 25000, .max = 350000 }, |
132 | .vco = { .min = 930000, .max = 1400000 }, | |
133 | .n = { .min = 3, .max = 16 }, | |
134 | .m = { .min = 96, .max = 140 }, | |
135 | .m1 = { .min = 18, .max = 26 }, | |
136 | .m2 = { .min = 6, .max = 16 }, | |
137 | .p = { .min = 4, .max = 128 }, | |
138 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
139 | .p2 = { .dot_limit = 165000, |
140 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 141 | .find_pll = intel_find_best_PLL, |
e4b36699 | 142 | }; |
273e27ca | 143 | |
e4b36699 | 144 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
145 | .dot = { .min = 20000, .max = 400000 }, |
146 | .vco = { .min = 1400000, .max = 2800000 }, | |
147 | .n = { .min = 1, .max = 6 }, | |
148 | .m = { .min = 70, .max = 120 }, | |
149 | .m1 = { .min = 10, .max = 22 }, | |
150 | .m2 = { .min = 5, .max = 9 }, | |
151 | .p = { .min = 5, .max = 80 }, | |
152 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
153 | .p2 = { .dot_limit = 200000, |
154 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 155 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
156 | }; |
157 | ||
158 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
159 | .dot = { .min = 20000, .max = 400000 }, |
160 | .vco = { .min = 1400000, .max = 2800000 }, | |
161 | .n = { .min = 1, .max = 6 }, | |
162 | .m = { .min = 70, .max = 120 }, | |
163 | .m1 = { .min = 10, .max = 22 }, | |
164 | .m2 = { .min = 5, .max = 9 }, | |
165 | .p = { .min = 7, .max = 98 }, | |
166 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
167 | .p2 = { .dot_limit = 112000, |
168 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 169 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
170 | }; |
171 | ||
273e27ca | 172 | |
e4b36699 | 173 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
174 | .dot = { .min = 25000, .max = 270000 }, |
175 | .vco = { .min = 1750000, .max = 3500000}, | |
176 | .n = { .min = 1, .max = 4 }, | |
177 | .m = { .min = 104, .max = 138 }, | |
178 | .m1 = { .min = 17, .max = 23 }, | |
179 | .m2 = { .min = 5, .max = 11 }, | |
180 | .p = { .min = 10, .max = 30 }, | |
181 | .p1 = { .min = 1, .max = 3}, | |
182 | .p2 = { .dot_limit = 270000, | |
183 | .p2_slow = 10, | |
184 | .p2_fast = 10 | |
044c7c41 | 185 | }, |
d4906093 | 186 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
187 | }; |
188 | ||
189 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
190 | .dot = { .min = 22000, .max = 400000 }, |
191 | .vco = { .min = 1750000, .max = 3500000}, | |
192 | .n = { .min = 1, .max = 4 }, | |
193 | .m = { .min = 104, .max = 138 }, | |
194 | .m1 = { .min = 16, .max = 23 }, | |
195 | .m2 = { .min = 5, .max = 11 }, | |
196 | .p = { .min = 5, .max = 80 }, | |
197 | .p1 = { .min = 1, .max = 8}, | |
198 | .p2 = { .dot_limit = 165000, | |
199 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 200 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
201 | }; |
202 | ||
203 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
204 | .dot = { .min = 20000, .max = 115000 }, |
205 | .vco = { .min = 1750000, .max = 3500000 }, | |
206 | .n = { .min = 1, .max = 3 }, | |
207 | .m = { .min = 104, .max = 138 }, | |
208 | .m1 = { .min = 17, .max = 23 }, | |
209 | .m2 = { .min = 5, .max = 11 }, | |
210 | .p = { .min = 28, .max = 112 }, | |
211 | .p1 = { .min = 2, .max = 8 }, | |
212 | .p2 = { .dot_limit = 0, | |
213 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 214 | }, |
d4906093 | 215 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
216 | }; |
217 | ||
218 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
219 | .dot = { .min = 80000, .max = 224000 }, |
220 | .vco = { .min = 1750000, .max = 3500000 }, | |
221 | .n = { .min = 1, .max = 3 }, | |
222 | .m = { .min = 104, .max = 138 }, | |
223 | .m1 = { .min = 17, .max = 23 }, | |
224 | .m2 = { .min = 5, .max = 11 }, | |
225 | .p = { .min = 14, .max = 42 }, | |
226 | .p1 = { .min = 2, .max = 6 }, | |
227 | .p2 = { .dot_limit = 0, | |
228 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 229 | }, |
d4906093 | 230 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
231 | }; |
232 | ||
233 | static const intel_limit_t intel_limits_g4x_display_port = { | |
0206e353 AJ |
234 | .dot = { .min = 161670, .max = 227000 }, |
235 | .vco = { .min = 1750000, .max = 3500000}, | |
236 | .n = { .min = 1, .max = 2 }, | |
237 | .m = { .min = 97, .max = 108 }, | |
238 | .m1 = { .min = 0x10, .max = 0x12 }, | |
239 | .m2 = { .min = 0x05, .max = 0x06 }, | |
240 | .p = { .min = 10, .max = 20 }, | |
241 | .p1 = { .min = 1, .max = 2}, | |
242 | .p2 = { .dot_limit = 0, | |
273e27ca | 243 | .p2_slow = 10, .p2_fast = 10 }, |
0206e353 | 244 | .find_pll = intel_find_pll_g4x_dp, |
e4b36699 KP |
245 | }; |
246 | ||
f2b115e6 | 247 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
248 | .dot = { .min = 20000, .max = 400000}, |
249 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 250 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
251 | .n = { .min = 3, .max = 6 }, |
252 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 253 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
254 | .m1 = { .min = 0, .max = 0 }, |
255 | .m2 = { .min = 0, .max = 254 }, | |
256 | .p = { .min = 5, .max = 80 }, | |
257 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
258 | .p2 = { .dot_limit = 200000, |
259 | .p2_slow = 10, .p2_fast = 5 }, | |
6115707b | 260 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
261 | }; |
262 | ||
f2b115e6 | 263 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
264 | .dot = { .min = 20000, .max = 400000 }, |
265 | .vco = { .min = 1700000, .max = 3500000 }, | |
266 | .n = { .min = 3, .max = 6 }, | |
267 | .m = { .min = 2, .max = 256 }, | |
268 | .m1 = { .min = 0, .max = 0 }, | |
269 | .m2 = { .min = 0, .max = 254 }, | |
270 | .p = { .min = 7, .max = 112 }, | |
271 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
272 | .p2 = { .dot_limit = 112000, |
273 | .p2_slow = 14, .p2_fast = 14 }, | |
6115707b | 274 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
275 | }; |
276 | ||
273e27ca EA |
277 | /* Ironlake / Sandybridge |
278 | * | |
279 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
280 | * the range value for them is (actual_value - 2). | |
281 | */ | |
b91ad0ec | 282 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
283 | .dot = { .min = 25000, .max = 350000 }, |
284 | .vco = { .min = 1760000, .max = 3510000 }, | |
285 | .n = { .min = 1, .max = 5 }, | |
286 | .m = { .min = 79, .max = 127 }, | |
287 | .m1 = { .min = 12, .max = 22 }, | |
288 | .m2 = { .min = 5, .max = 9 }, | |
289 | .p = { .min = 5, .max = 80 }, | |
290 | .p1 = { .min = 1, .max = 8 }, | |
291 | .p2 = { .dot_limit = 225000, | |
292 | .p2_slow = 10, .p2_fast = 5 }, | |
4547668a | 293 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
294 | }; |
295 | ||
b91ad0ec | 296 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
297 | .dot = { .min = 25000, .max = 350000 }, |
298 | .vco = { .min = 1760000, .max = 3510000 }, | |
299 | .n = { .min = 1, .max = 3 }, | |
300 | .m = { .min = 79, .max = 118 }, | |
301 | .m1 = { .min = 12, .max = 22 }, | |
302 | .m2 = { .min = 5, .max = 9 }, | |
303 | .p = { .min = 28, .max = 112 }, | |
304 | .p1 = { .min = 2, .max = 8 }, | |
305 | .p2 = { .dot_limit = 225000, | |
306 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
307 | .find_pll = intel_g4x_find_best_PLL, |
308 | }; | |
309 | ||
310 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
311 | .dot = { .min = 25000, .max = 350000 }, |
312 | .vco = { .min = 1760000, .max = 3510000 }, | |
313 | .n = { .min = 1, .max = 3 }, | |
314 | .m = { .min = 79, .max = 127 }, | |
315 | .m1 = { .min = 12, .max = 22 }, | |
316 | .m2 = { .min = 5, .max = 9 }, | |
317 | .p = { .min = 14, .max = 56 }, | |
318 | .p1 = { .min = 2, .max = 8 }, | |
319 | .p2 = { .dot_limit = 225000, | |
320 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
321 | .find_pll = intel_g4x_find_best_PLL, |
322 | }; | |
323 | ||
273e27ca | 324 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 325 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
326 | .dot = { .min = 25000, .max = 350000 }, |
327 | .vco = { .min = 1760000, .max = 3510000 }, | |
328 | .n = { .min = 1, .max = 2 }, | |
329 | .m = { .min = 79, .max = 126 }, | |
330 | .m1 = { .min = 12, .max = 22 }, | |
331 | .m2 = { .min = 5, .max = 9 }, | |
332 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 333 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
334 | .p2 = { .dot_limit = 225000, |
335 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
336 | .find_pll = intel_g4x_find_best_PLL, |
337 | }; | |
338 | ||
339 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
340 | .dot = { .min = 25000, .max = 350000 }, |
341 | .vco = { .min = 1760000, .max = 3510000 }, | |
342 | .n = { .min = 1, .max = 3 }, | |
343 | .m = { .min = 79, .max = 126 }, | |
344 | .m1 = { .min = 12, .max = 22 }, | |
345 | .m2 = { .min = 5, .max = 9 }, | |
346 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 347 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
348 | .p2 = { .dot_limit = 225000, |
349 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
350 | .find_pll = intel_g4x_find_best_PLL, |
351 | }; | |
352 | ||
353 | static const intel_limit_t intel_limits_ironlake_display_port = { | |
0206e353 AJ |
354 | .dot = { .min = 25000, .max = 350000 }, |
355 | .vco = { .min = 1760000, .max = 3510000}, | |
356 | .n = { .min = 1, .max = 2 }, | |
357 | .m = { .min = 81, .max = 90 }, | |
358 | .m1 = { .min = 12, .max = 22 }, | |
359 | .m2 = { .min = 5, .max = 9 }, | |
360 | .p = { .min = 10, .max = 20 }, | |
361 | .p1 = { .min = 1, .max = 2}, | |
362 | .p2 = { .dot_limit = 0, | |
273e27ca | 363 | .p2_slow = 10, .p2_fast = 10 }, |
0206e353 | 364 | .find_pll = intel_find_pll_ironlake_dp, |
79e53945 JB |
365 | }; |
366 | ||
a0c4da24 JB |
367 | static const intel_limit_t intel_limits_vlv_dac = { |
368 | .dot = { .min = 25000, .max = 270000 }, | |
369 | .vco = { .min = 4000000, .max = 6000000 }, | |
370 | .n = { .min = 1, .max = 7 }, | |
371 | .m = { .min = 22, .max = 450 }, /* guess */ | |
372 | .m1 = { .min = 2, .max = 3 }, | |
373 | .m2 = { .min = 11, .max = 156 }, | |
374 | .p = { .min = 10, .max = 30 }, | |
375 | .p1 = { .min = 2, .max = 3 }, | |
376 | .p2 = { .dot_limit = 270000, | |
377 | .p2_slow = 2, .p2_fast = 20 }, | |
378 | .find_pll = intel_vlv_find_best_pll, | |
379 | }; | |
380 | ||
381 | static const intel_limit_t intel_limits_vlv_hdmi = { | |
382 | .dot = { .min = 20000, .max = 165000 }, | |
383 | .vco = { .min = 5994000, .max = 4000000 }, | |
384 | .n = { .min = 1, .max = 7 }, | |
385 | .m = { .min = 60, .max = 300 }, /* guess */ | |
386 | .m1 = { .min = 2, .max = 3 }, | |
387 | .m2 = { .min = 11, .max = 156 }, | |
388 | .p = { .min = 10, .max = 30 }, | |
389 | .p1 = { .min = 2, .max = 3 }, | |
390 | .p2 = { .dot_limit = 270000, | |
391 | .p2_slow = 2, .p2_fast = 20 }, | |
392 | .find_pll = intel_vlv_find_best_pll, | |
393 | }; | |
394 | ||
395 | static const intel_limit_t intel_limits_vlv_dp = { | |
396 | .dot = { .min = 162000, .max = 270000 }, | |
397 | .vco = { .min = 5994000, .max = 4000000 }, | |
398 | .n = { .min = 1, .max = 7 }, | |
399 | .m = { .min = 60, .max = 300 }, /* guess */ | |
400 | .m1 = { .min = 2, .max = 3 }, | |
401 | .m2 = { .min = 11, .max = 156 }, | |
402 | .p = { .min = 10, .max = 30 }, | |
403 | .p1 = { .min = 2, .max = 3 }, | |
404 | .p2 = { .dot_limit = 270000, | |
405 | .p2_slow = 2, .p2_fast = 20 }, | |
406 | .find_pll = intel_vlv_find_best_pll, | |
407 | }; | |
408 | ||
57f350b6 JB |
409 | u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg) |
410 | { | |
411 | unsigned long flags; | |
412 | u32 val = 0; | |
413 | ||
414 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
415 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
416 | DRM_ERROR("DPIO idle wait timed out\n"); | |
417 | goto out_unlock; | |
418 | } | |
419 | ||
420 | I915_WRITE(DPIO_REG, reg); | |
421 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_READ | DPIO_PORTID | | |
422 | DPIO_BYTE); | |
423 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
424 | DRM_ERROR("DPIO read wait timed out\n"); | |
425 | goto out_unlock; | |
426 | } | |
427 | val = I915_READ(DPIO_DATA); | |
428 | ||
429 | out_unlock: | |
430 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
431 | return val; | |
432 | } | |
433 | ||
a0c4da24 JB |
434 | static void intel_dpio_write(struct drm_i915_private *dev_priv, int reg, |
435 | u32 val) | |
436 | { | |
437 | unsigned long flags; | |
438 | ||
439 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
440 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
441 | DRM_ERROR("DPIO idle wait timed out\n"); | |
442 | goto out_unlock; | |
443 | } | |
444 | ||
445 | I915_WRITE(DPIO_DATA, val); | |
446 | I915_WRITE(DPIO_REG, reg); | |
447 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_WRITE | DPIO_PORTID | | |
448 | DPIO_BYTE); | |
449 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) | |
450 | DRM_ERROR("DPIO write wait timed out\n"); | |
451 | ||
452 | out_unlock: | |
453 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
454 | } | |
455 | ||
57f350b6 JB |
456 | static void vlv_init_dpio(struct drm_device *dev) |
457 | { | |
458 | struct drm_i915_private *dev_priv = dev->dev_private; | |
459 | ||
460 | /* Reset the DPIO config */ | |
461 | I915_WRITE(DPIO_CTL, 0); | |
462 | POSTING_READ(DPIO_CTL); | |
463 | I915_WRITE(DPIO_CTL, 1); | |
464 | POSTING_READ(DPIO_CTL); | |
465 | } | |
466 | ||
618563e3 DV |
467 | static int intel_dual_link_lvds_callback(const struct dmi_system_id *id) |
468 | { | |
469 | DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident); | |
470 | return 1; | |
471 | } | |
472 | ||
473 | static const struct dmi_system_id intel_dual_link_lvds[] = { | |
474 | { | |
475 | .callback = intel_dual_link_lvds_callback, | |
476 | .ident = "Apple MacBook Pro (Core i5/i7 Series)", | |
477 | .matches = { | |
478 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), | |
479 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), | |
480 | }, | |
481 | }, | |
482 | { } /* terminating entry */ | |
483 | }; | |
484 | ||
b0354385 TI |
485 | static bool is_dual_link_lvds(struct drm_i915_private *dev_priv, |
486 | unsigned int reg) | |
487 | { | |
488 | unsigned int val; | |
489 | ||
121d527a TI |
490 | /* use the module option value if specified */ |
491 | if (i915_lvds_channel_mode > 0) | |
492 | return i915_lvds_channel_mode == 2; | |
493 | ||
618563e3 DV |
494 | if (dmi_check_system(intel_dual_link_lvds)) |
495 | return true; | |
496 | ||
b0354385 TI |
497 | if (dev_priv->lvds_val) |
498 | val = dev_priv->lvds_val; | |
499 | else { | |
500 | /* BIOS should set the proper LVDS register value at boot, but | |
501 | * in reality, it doesn't set the value when the lid is closed; | |
502 | * we need to check "the value to be set" in VBT when LVDS | |
503 | * register is uninitialized. | |
504 | */ | |
505 | val = I915_READ(reg); | |
14d94a3d | 506 | if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED))) |
b0354385 TI |
507 | val = dev_priv->bios_lvds_val; |
508 | dev_priv->lvds_val = val; | |
509 | } | |
510 | return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP; | |
511 | } | |
512 | ||
1b894b59 CW |
513 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
514 | int refclk) | |
2c07245f | 515 | { |
b91ad0ec ZW |
516 | struct drm_device *dev = crtc->dev; |
517 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2c07245f | 518 | const intel_limit_t *limit; |
b91ad0ec ZW |
519 | |
520 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b0354385 | 521 | if (is_dual_link_lvds(dev_priv, PCH_LVDS)) { |
b91ad0ec | 522 | /* LVDS dual channel */ |
1b894b59 | 523 | if (refclk == 100000) |
b91ad0ec ZW |
524 | limit = &intel_limits_ironlake_dual_lvds_100m; |
525 | else | |
526 | limit = &intel_limits_ironlake_dual_lvds; | |
527 | } else { | |
1b894b59 | 528 | if (refclk == 100000) |
b91ad0ec ZW |
529 | limit = &intel_limits_ironlake_single_lvds_100m; |
530 | else | |
531 | limit = &intel_limits_ironlake_single_lvds; | |
532 | } | |
533 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || | |
4547668a ZY |
534 | HAS_eDP) |
535 | limit = &intel_limits_ironlake_display_port; | |
2c07245f | 536 | else |
b91ad0ec | 537 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
538 | |
539 | return limit; | |
540 | } | |
541 | ||
044c7c41 ML |
542 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
543 | { | |
544 | struct drm_device *dev = crtc->dev; | |
545 | struct drm_i915_private *dev_priv = dev->dev_private; | |
546 | const intel_limit_t *limit; | |
547 | ||
548 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b0354385 | 549 | if (is_dual_link_lvds(dev_priv, LVDS)) |
044c7c41 | 550 | /* LVDS with dual channel */ |
e4b36699 | 551 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 ML |
552 | else |
553 | /* LVDS with dual channel */ | |
e4b36699 | 554 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
555 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
556 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 557 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 558 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 559 | limit = &intel_limits_g4x_sdvo; |
0206e353 | 560 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
e4b36699 | 561 | limit = &intel_limits_g4x_display_port; |
044c7c41 | 562 | } else /* The option is for other outputs */ |
e4b36699 | 563 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
564 | |
565 | return limit; | |
566 | } | |
567 | ||
1b894b59 | 568 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
79e53945 JB |
569 | { |
570 | struct drm_device *dev = crtc->dev; | |
571 | const intel_limit_t *limit; | |
572 | ||
bad720ff | 573 | if (HAS_PCH_SPLIT(dev)) |
1b894b59 | 574 | limit = intel_ironlake_limit(crtc, refclk); |
2c07245f | 575 | else if (IS_G4X(dev)) { |
044c7c41 | 576 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 577 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 578 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 579 | limit = &intel_limits_pineview_lvds; |
2177832f | 580 | else |
f2b115e6 | 581 | limit = &intel_limits_pineview_sdvo; |
a0c4da24 JB |
582 | } else if (IS_VALLEYVIEW(dev)) { |
583 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) | |
584 | limit = &intel_limits_vlv_dac; | |
585 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
586 | limit = &intel_limits_vlv_hdmi; | |
587 | else | |
588 | limit = &intel_limits_vlv_dp; | |
a6c45cf0 CW |
589 | } else if (!IS_GEN2(dev)) { |
590 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
591 | limit = &intel_limits_i9xx_lvds; | |
592 | else | |
593 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 JB |
594 | } else { |
595 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 596 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 597 | else |
e4b36699 | 598 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
599 | } |
600 | return limit; | |
601 | } | |
602 | ||
f2b115e6 AJ |
603 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
604 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 605 | { |
2177832f SL |
606 | clock->m = clock->m2 + 2; |
607 | clock->p = clock->p1 * clock->p2; | |
608 | clock->vco = refclk * clock->m / clock->n; | |
609 | clock->dot = clock->vco / clock->p; | |
610 | } | |
611 | ||
612 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) | |
613 | { | |
f2b115e6 AJ |
614 | if (IS_PINEVIEW(dev)) { |
615 | pineview_clock(refclk, clock); | |
2177832f SL |
616 | return; |
617 | } | |
79e53945 JB |
618 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
619 | clock->p = clock->p1 * clock->p2; | |
620 | clock->vco = refclk * clock->m / (clock->n + 2); | |
621 | clock->dot = clock->vco / clock->p; | |
622 | } | |
623 | ||
79e53945 JB |
624 | /** |
625 | * Returns whether any output on the specified pipe is of the specified type | |
626 | */ | |
4ef69c7a | 627 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
79e53945 | 628 | { |
4ef69c7a | 629 | struct drm_device *dev = crtc->dev; |
4ef69c7a CW |
630 | struct intel_encoder *encoder; |
631 | ||
6c2b7c12 DV |
632 | for_each_encoder_on_crtc(dev, crtc, encoder) |
633 | if (encoder->type == type) | |
4ef69c7a CW |
634 | return true; |
635 | ||
636 | return false; | |
79e53945 JB |
637 | } |
638 | ||
7c04d1d9 | 639 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
640 | /** |
641 | * Returns whether the given set of divisors are valid for a given refclk with | |
642 | * the given connectors. | |
643 | */ | |
644 | ||
1b894b59 CW |
645 | static bool intel_PLL_is_valid(struct drm_device *dev, |
646 | const intel_limit_t *limit, | |
647 | const intel_clock_t *clock) | |
79e53945 | 648 | { |
79e53945 | 649 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 650 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 651 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
0206e353 | 652 | INTELPllInvalid("p out of range\n"); |
79e53945 | 653 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 654 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 655 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 656 | INTELPllInvalid("m1 out of range\n"); |
f2b115e6 | 657 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
0206e353 | 658 | INTELPllInvalid("m1 <= m2\n"); |
79e53945 | 659 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
0206e353 | 660 | INTELPllInvalid("m out of range\n"); |
79e53945 | 661 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
0206e353 | 662 | INTELPllInvalid("n out of range\n"); |
79e53945 | 663 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 664 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
665 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
666 | * connector, etc., rather than just a single range. | |
667 | */ | |
668 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 669 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
670 | |
671 | return true; | |
672 | } | |
673 | ||
d4906093 ML |
674 | static bool |
675 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
676 | int target, int refclk, intel_clock_t *match_clock, |
677 | intel_clock_t *best_clock) | |
d4906093 | 678 | |
79e53945 JB |
679 | { |
680 | struct drm_device *dev = crtc->dev; | |
681 | struct drm_i915_private *dev_priv = dev->dev_private; | |
682 | intel_clock_t clock; | |
79e53945 JB |
683 | int err = target; |
684 | ||
bc5e5718 | 685 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
832cc28d | 686 | (I915_READ(LVDS)) != 0) { |
79e53945 JB |
687 | /* |
688 | * For LVDS, if the panel is on, just rely on its current | |
689 | * settings for dual-channel. We haven't figured out how to | |
690 | * reliably set up different single/dual channel state, if we | |
691 | * even can. | |
692 | */ | |
b0354385 | 693 | if (is_dual_link_lvds(dev_priv, LVDS)) |
79e53945 JB |
694 | clock.p2 = limit->p2.p2_fast; |
695 | else | |
696 | clock.p2 = limit->p2.p2_slow; | |
697 | } else { | |
698 | if (target < limit->p2.dot_limit) | |
699 | clock.p2 = limit->p2.p2_slow; | |
700 | else | |
701 | clock.p2 = limit->p2.p2_fast; | |
702 | } | |
703 | ||
0206e353 | 704 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 705 | |
42158660 ZY |
706 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
707 | clock.m1++) { | |
708 | for (clock.m2 = limit->m2.min; | |
709 | clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
710 | /* m1 is always 0 in Pineview */ |
711 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
42158660 ZY |
712 | break; |
713 | for (clock.n = limit->n.min; | |
714 | clock.n <= limit->n.max; clock.n++) { | |
715 | for (clock.p1 = limit->p1.min; | |
716 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
717 | int this_err; |
718 | ||
2177832f | 719 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
720 | if (!intel_PLL_is_valid(dev, limit, |
721 | &clock)) | |
79e53945 | 722 | continue; |
cec2f356 SP |
723 | if (match_clock && |
724 | clock.p != match_clock->p) | |
725 | continue; | |
79e53945 JB |
726 | |
727 | this_err = abs(clock.dot - target); | |
728 | if (this_err < err) { | |
729 | *best_clock = clock; | |
730 | err = this_err; | |
731 | } | |
732 | } | |
733 | } | |
734 | } | |
735 | } | |
736 | ||
737 | return (err != target); | |
738 | } | |
739 | ||
d4906093 ML |
740 | static bool |
741 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
742 | int target, int refclk, intel_clock_t *match_clock, |
743 | intel_clock_t *best_clock) | |
d4906093 ML |
744 | { |
745 | struct drm_device *dev = crtc->dev; | |
746 | struct drm_i915_private *dev_priv = dev->dev_private; | |
747 | intel_clock_t clock; | |
748 | int max_n; | |
749 | bool found; | |
6ba770dc AJ |
750 | /* approximately equals target * 0.00585 */ |
751 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
752 | found = false; |
753 | ||
754 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4547668a ZY |
755 | int lvds_reg; |
756 | ||
c619eed4 | 757 | if (HAS_PCH_SPLIT(dev)) |
4547668a ZY |
758 | lvds_reg = PCH_LVDS; |
759 | else | |
760 | lvds_reg = LVDS; | |
761 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == | |
d4906093 ML |
762 | LVDS_CLKB_POWER_UP) |
763 | clock.p2 = limit->p2.p2_fast; | |
764 | else | |
765 | clock.p2 = limit->p2.p2_slow; | |
766 | } else { | |
767 | if (target < limit->p2.dot_limit) | |
768 | clock.p2 = limit->p2.p2_slow; | |
769 | else | |
770 | clock.p2 = limit->p2.p2_fast; | |
771 | } | |
772 | ||
773 | memset(best_clock, 0, sizeof(*best_clock)); | |
774 | max_n = limit->n.max; | |
f77f13e2 | 775 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 776 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 777 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
778 | for (clock.m1 = limit->m1.max; |
779 | clock.m1 >= limit->m1.min; clock.m1--) { | |
780 | for (clock.m2 = limit->m2.max; | |
781 | clock.m2 >= limit->m2.min; clock.m2--) { | |
782 | for (clock.p1 = limit->p1.max; | |
783 | clock.p1 >= limit->p1.min; clock.p1--) { | |
784 | int this_err; | |
785 | ||
2177832f | 786 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
787 | if (!intel_PLL_is_valid(dev, limit, |
788 | &clock)) | |
d4906093 | 789 | continue; |
cec2f356 SP |
790 | if (match_clock && |
791 | clock.p != match_clock->p) | |
792 | continue; | |
1b894b59 CW |
793 | |
794 | this_err = abs(clock.dot - target); | |
d4906093 ML |
795 | if (this_err < err_most) { |
796 | *best_clock = clock; | |
797 | err_most = this_err; | |
798 | max_n = clock.n; | |
799 | found = true; | |
800 | } | |
801 | } | |
802 | } | |
803 | } | |
804 | } | |
2c07245f ZW |
805 | return found; |
806 | } | |
807 | ||
5eb08b69 | 808 | static bool |
f2b115e6 | 809 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
cec2f356 SP |
810 | int target, int refclk, intel_clock_t *match_clock, |
811 | intel_clock_t *best_clock) | |
5eb08b69 ZW |
812 | { |
813 | struct drm_device *dev = crtc->dev; | |
814 | intel_clock_t clock; | |
4547668a | 815 | |
5eb08b69 ZW |
816 | if (target < 200000) { |
817 | clock.n = 1; | |
818 | clock.p1 = 2; | |
819 | clock.p2 = 10; | |
820 | clock.m1 = 12; | |
821 | clock.m2 = 9; | |
822 | } else { | |
823 | clock.n = 2; | |
824 | clock.p1 = 1; | |
825 | clock.p2 = 10; | |
826 | clock.m1 = 14; | |
827 | clock.m2 = 8; | |
828 | } | |
829 | intel_clock(dev, refclk, &clock); | |
830 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
831 | return true; | |
832 | } | |
833 | ||
a4fc5ed6 KP |
834 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
835 | static bool | |
836 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
837 | int target, int refclk, intel_clock_t *match_clock, |
838 | intel_clock_t *best_clock) | |
a4fc5ed6 | 839 | { |
5eddb70b CW |
840 | intel_clock_t clock; |
841 | if (target < 200000) { | |
842 | clock.p1 = 2; | |
843 | clock.p2 = 10; | |
844 | clock.n = 2; | |
845 | clock.m1 = 23; | |
846 | clock.m2 = 8; | |
847 | } else { | |
848 | clock.p1 = 1; | |
849 | clock.p2 = 10; | |
850 | clock.n = 1; | |
851 | clock.m1 = 14; | |
852 | clock.m2 = 2; | |
853 | } | |
854 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); | |
855 | clock.p = (clock.p1 * clock.p2); | |
856 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; | |
857 | clock.vco = 0; | |
858 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
859 | return true; | |
a4fc5ed6 | 860 | } |
a0c4da24 JB |
861 | static bool |
862 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
863 | int target, int refclk, intel_clock_t *match_clock, | |
864 | intel_clock_t *best_clock) | |
865 | { | |
866 | u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2; | |
867 | u32 m, n, fastclk; | |
868 | u32 updrate, minupdate, fracbits, p; | |
869 | unsigned long bestppm, ppm, absppm; | |
870 | int dotclk, flag; | |
871 | ||
af447bd3 | 872 | flag = 0; |
a0c4da24 JB |
873 | dotclk = target * 1000; |
874 | bestppm = 1000000; | |
875 | ppm = absppm = 0; | |
876 | fastclk = dotclk / (2*100); | |
877 | updrate = 0; | |
878 | minupdate = 19200; | |
879 | fracbits = 1; | |
880 | n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0; | |
881 | bestm1 = bestm2 = bestp1 = bestp2 = 0; | |
882 | ||
883 | /* based on hardware requirement, prefer smaller n to precision */ | |
884 | for (n = limit->n.min; n <= ((refclk) / minupdate); n++) { | |
885 | updrate = refclk / n; | |
886 | for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) { | |
887 | for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) { | |
888 | if (p2 > 10) | |
889 | p2 = p2 - 1; | |
890 | p = p1 * p2; | |
891 | /* based on hardware requirement, prefer bigger m1,m2 values */ | |
892 | for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) { | |
893 | m2 = (((2*(fastclk * p * n / m1 )) + | |
894 | refclk) / (2*refclk)); | |
895 | m = m1 * m2; | |
896 | vco = updrate * m; | |
897 | if (vco >= limit->vco.min && vco < limit->vco.max) { | |
898 | ppm = 1000000 * ((vco / p) - fastclk) / fastclk; | |
899 | absppm = (ppm > 0) ? ppm : (-ppm); | |
900 | if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) { | |
901 | bestppm = 0; | |
902 | flag = 1; | |
903 | } | |
904 | if (absppm < bestppm - 10) { | |
905 | bestppm = absppm; | |
906 | flag = 1; | |
907 | } | |
908 | if (flag) { | |
909 | bestn = n; | |
910 | bestm1 = m1; | |
911 | bestm2 = m2; | |
912 | bestp1 = p1; | |
913 | bestp2 = p2; | |
914 | flag = 0; | |
915 | } | |
916 | } | |
917 | } | |
918 | } | |
919 | } | |
920 | } | |
921 | best_clock->n = bestn; | |
922 | best_clock->m1 = bestm1; | |
923 | best_clock->m2 = bestm2; | |
924 | best_clock->p1 = bestp1; | |
925 | best_clock->p2 = bestp2; | |
926 | ||
927 | return true; | |
928 | } | |
a4fc5ed6 | 929 | |
a928d536 PZ |
930 | static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe) |
931 | { | |
932 | struct drm_i915_private *dev_priv = dev->dev_private; | |
933 | u32 frame, frame_reg = PIPEFRAME(pipe); | |
934 | ||
935 | frame = I915_READ(frame_reg); | |
936 | ||
937 | if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50)) | |
938 | DRM_DEBUG_KMS("vblank wait timed out\n"); | |
939 | } | |
940 | ||
9d0498a2 JB |
941 | /** |
942 | * intel_wait_for_vblank - wait for vblank on a given pipe | |
943 | * @dev: drm device | |
944 | * @pipe: pipe to wait for | |
945 | * | |
946 | * Wait for vblank to occur on a given pipe. Needed for various bits of | |
947 | * mode setting code. | |
948 | */ | |
949 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) | |
79e53945 | 950 | { |
9d0498a2 | 951 | struct drm_i915_private *dev_priv = dev->dev_private; |
9db4a9c7 | 952 | int pipestat_reg = PIPESTAT(pipe); |
9d0498a2 | 953 | |
a928d536 PZ |
954 | if (INTEL_INFO(dev)->gen >= 5) { |
955 | ironlake_wait_for_vblank(dev, pipe); | |
956 | return; | |
957 | } | |
958 | ||
300387c0 CW |
959 | /* Clear existing vblank status. Note this will clear any other |
960 | * sticky status fields as well. | |
961 | * | |
962 | * This races with i915_driver_irq_handler() with the result | |
963 | * that either function could miss a vblank event. Here it is not | |
964 | * fatal, as we will either wait upon the next vblank interrupt or | |
965 | * timeout. Generally speaking intel_wait_for_vblank() is only | |
966 | * called during modeset at which time the GPU should be idle and | |
967 | * should *not* be performing page flips and thus not waiting on | |
968 | * vblanks... | |
969 | * Currently, the result of us stealing a vblank from the irq | |
970 | * handler is that a single frame will be skipped during swapbuffers. | |
971 | */ | |
972 | I915_WRITE(pipestat_reg, | |
973 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); | |
974 | ||
9d0498a2 | 975 | /* Wait for vblank interrupt bit to set */ |
481b6af3 CW |
976 | if (wait_for(I915_READ(pipestat_reg) & |
977 | PIPE_VBLANK_INTERRUPT_STATUS, | |
978 | 50)) | |
9d0498a2 JB |
979 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
980 | } | |
981 | ||
ab7ad7f6 KP |
982 | /* |
983 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
9d0498a2 JB |
984 | * @dev: drm device |
985 | * @pipe: pipe to wait for | |
986 | * | |
987 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
988 | * spinning on the vblank interrupt status bit, since we won't actually | |
989 | * see an interrupt when the pipe is disabled. | |
990 | * | |
ab7ad7f6 KP |
991 | * On Gen4 and above: |
992 | * wait for the pipe register state bit to turn off | |
993 | * | |
994 | * Otherwise: | |
995 | * wait for the display line value to settle (it usually | |
996 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 997 | * |
9d0498a2 | 998 | */ |
58e10eb9 | 999 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
9d0498a2 JB |
1000 | { |
1001 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ab7ad7f6 KP |
1002 | |
1003 | if (INTEL_INFO(dev)->gen >= 4) { | |
58e10eb9 | 1004 | int reg = PIPECONF(pipe); |
ab7ad7f6 KP |
1005 | |
1006 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
1007 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
1008 | 100)) | |
284637d9 | 1009 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1010 | } else { |
837ba00f | 1011 | u32 last_line, line_mask; |
58e10eb9 | 1012 | int reg = PIPEDSL(pipe); |
ab7ad7f6 KP |
1013 | unsigned long timeout = jiffies + msecs_to_jiffies(100); |
1014 | ||
837ba00f PZ |
1015 | if (IS_GEN2(dev)) |
1016 | line_mask = DSL_LINEMASK_GEN2; | |
1017 | else | |
1018 | line_mask = DSL_LINEMASK_GEN3; | |
1019 | ||
ab7ad7f6 KP |
1020 | /* Wait for the display line to settle */ |
1021 | do { | |
837ba00f | 1022 | last_line = I915_READ(reg) & line_mask; |
ab7ad7f6 | 1023 | mdelay(5); |
837ba00f | 1024 | } while (((I915_READ(reg) & line_mask) != last_line) && |
ab7ad7f6 KP |
1025 | time_after(timeout, jiffies)); |
1026 | if (time_after(jiffies, timeout)) | |
284637d9 | 1027 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1028 | } |
79e53945 JB |
1029 | } |
1030 | ||
b24e7179 JB |
1031 | static const char *state_string(bool enabled) |
1032 | { | |
1033 | return enabled ? "on" : "off"; | |
1034 | } | |
1035 | ||
1036 | /* Only for pre-ILK configs */ | |
1037 | static void assert_pll(struct drm_i915_private *dev_priv, | |
1038 | enum pipe pipe, bool state) | |
1039 | { | |
1040 | int reg; | |
1041 | u32 val; | |
1042 | bool cur_state; | |
1043 | ||
1044 | reg = DPLL(pipe); | |
1045 | val = I915_READ(reg); | |
1046 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1047 | WARN(cur_state != state, | |
1048 | "PLL state assertion failure (expected %s, current %s)\n", | |
1049 | state_string(state), state_string(cur_state)); | |
1050 | } | |
1051 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) | |
1052 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) | |
1053 | ||
040484af JB |
1054 | /* For ILK+ */ |
1055 | static void assert_pch_pll(struct drm_i915_private *dev_priv, | |
92b27b08 CW |
1056 | struct intel_pch_pll *pll, |
1057 | struct intel_crtc *crtc, | |
1058 | bool state) | |
040484af | 1059 | { |
040484af JB |
1060 | u32 val; |
1061 | bool cur_state; | |
1062 | ||
9d82aa17 ED |
1063 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1064 | DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n"); | |
1065 | return; | |
1066 | } | |
1067 | ||
92b27b08 CW |
1068 | if (WARN (!pll, |
1069 | "asserting PCH PLL %s with no PLL\n", state_string(state))) | |
ee7b9f93 | 1070 | return; |
ee7b9f93 | 1071 | |
92b27b08 CW |
1072 | val = I915_READ(pll->pll_reg); |
1073 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1074 | WARN(cur_state != state, | |
1075 | "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n", | |
1076 | pll->pll_reg, state_string(state), state_string(cur_state), val); | |
1077 | ||
1078 | /* Make sure the selected PLL is correctly attached to the transcoder */ | |
1079 | if (crtc && HAS_PCH_CPT(dev_priv->dev)) { | |
d3ccbe86 JB |
1080 | u32 pch_dpll; |
1081 | ||
1082 | pch_dpll = I915_READ(PCH_DPLL_SEL); | |
92b27b08 CW |
1083 | cur_state = pll->pll_reg == _PCH_DPLL_B; |
1084 | if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state, | |
1085 | "PLL[%d] not attached to this transcoder %d: %08x\n", | |
1086 | cur_state, crtc->pipe, pch_dpll)) { | |
1087 | cur_state = !!(val >> (4*crtc->pipe + 3)); | |
1088 | WARN(cur_state != state, | |
1089 | "PLL[%d] not %s on this transcoder %d: %08x\n", | |
1090 | pll->pll_reg == _PCH_DPLL_B, | |
1091 | state_string(state), | |
1092 | crtc->pipe, | |
1093 | val); | |
1094 | } | |
d3ccbe86 | 1095 | } |
040484af | 1096 | } |
92b27b08 CW |
1097 | #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true) |
1098 | #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false) | |
040484af JB |
1099 | |
1100 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
1101 | enum pipe pipe, bool state) | |
1102 | { | |
1103 | int reg; | |
1104 | u32 val; | |
1105 | bool cur_state; | |
1106 | ||
bf507ef7 ED |
1107 | if (IS_HASWELL(dev_priv->dev)) { |
1108 | /* On Haswell, DDI is used instead of FDI_TX_CTL */ | |
1109 | reg = DDI_FUNC_CTL(pipe); | |
1110 | val = I915_READ(reg); | |
1111 | cur_state = !!(val & PIPE_DDI_FUNC_ENABLE); | |
1112 | } else { | |
1113 | reg = FDI_TX_CTL(pipe); | |
1114 | val = I915_READ(reg); | |
1115 | cur_state = !!(val & FDI_TX_ENABLE); | |
1116 | } | |
040484af JB |
1117 | WARN(cur_state != state, |
1118 | "FDI TX state assertion failure (expected %s, current %s)\n", | |
1119 | state_string(state), state_string(cur_state)); | |
1120 | } | |
1121 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
1122 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
1123 | ||
1124 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
1125 | enum pipe pipe, bool state) | |
1126 | { | |
1127 | int reg; | |
1128 | u32 val; | |
1129 | bool cur_state; | |
1130 | ||
59c859d6 ED |
1131 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1132 | DRM_ERROR("Attempting to enable FDI_RX on Haswell pipe > 0\n"); | |
1133 | return; | |
1134 | } else { | |
1135 | reg = FDI_RX_CTL(pipe); | |
1136 | val = I915_READ(reg); | |
1137 | cur_state = !!(val & FDI_RX_ENABLE); | |
1138 | } | |
040484af JB |
1139 | WARN(cur_state != state, |
1140 | "FDI RX state assertion failure (expected %s, current %s)\n", | |
1141 | state_string(state), state_string(cur_state)); | |
1142 | } | |
1143 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
1144 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1145 | ||
1146 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1147 | enum pipe pipe) | |
1148 | { | |
1149 | int reg; | |
1150 | u32 val; | |
1151 | ||
1152 | /* ILK FDI PLL is always enabled */ | |
1153 | if (dev_priv->info->gen == 5) | |
1154 | return; | |
1155 | ||
bf507ef7 ED |
1156 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
1157 | if (IS_HASWELL(dev_priv->dev)) | |
1158 | return; | |
1159 | ||
040484af JB |
1160 | reg = FDI_TX_CTL(pipe); |
1161 | val = I915_READ(reg); | |
1162 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); | |
1163 | } | |
1164 | ||
1165 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, | |
1166 | enum pipe pipe) | |
1167 | { | |
1168 | int reg; | |
1169 | u32 val; | |
1170 | ||
59c859d6 ED |
1171 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1172 | DRM_ERROR("Attempting to enable FDI on Haswell with pipe > 0\n"); | |
1173 | return; | |
1174 | } | |
040484af JB |
1175 | reg = FDI_RX_CTL(pipe); |
1176 | val = I915_READ(reg); | |
1177 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); | |
1178 | } | |
1179 | ||
ea0760cf JB |
1180 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1181 | enum pipe pipe) | |
1182 | { | |
1183 | int pp_reg, lvds_reg; | |
1184 | u32 val; | |
1185 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1186 | bool locked = true; |
ea0760cf JB |
1187 | |
1188 | if (HAS_PCH_SPLIT(dev_priv->dev)) { | |
1189 | pp_reg = PCH_PP_CONTROL; | |
1190 | lvds_reg = PCH_LVDS; | |
1191 | } else { | |
1192 | pp_reg = PP_CONTROL; | |
1193 | lvds_reg = LVDS; | |
1194 | } | |
1195 | ||
1196 | val = I915_READ(pp_reg); | |
1197 | if (!(val & PANEL_POWER_ON) || | |
1198 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) | |
1199 | locked = false; | |
1200 | ||
1201 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) | |
1202 | panel_pipe = PIPE_B; | |
1203 | ||
1204 | WARN(panel_pipe == pipe && locked, | |
1205 | "panel assertion failure, pipe %c regs locked\n", | |
9db4a9c7 | 1206 | pipe_name(pipe)); |
ea0760cf JB |
1207 | } |
1208 | ||
b840d907 JB |
1209 | void assert_pipe(struct drm_i915_private *dev_priv, |
1210 | enum pipe pipe, bool state) | |
b24e7179 JB |
1211 | { |
1212 | int reg; | |
1213 | u32 val; | |
63d7bbe9 | 1214 | bool cur_state; |
b24e7179 | 1215 | |
8e636784 DV |
1216 | /* if we need the pipe A quirk it must be always on */ |
1217 | if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) | |
1218 | state = true; | |
1219 | ||
b24e7179 JB |
1220 | reg = PIPECONF(pipe); |
1221 | val = I915_READ(reg); | |
63d7bbe9 JB |
1222 | cur_state = !!(val & PIPECONF_ENABLE); |
1223 | WARN(cur_state != state, | |
1224 | "pipe %c assertion failure (expected %s, current %s)\n", | |
9db4a9c7 | 1225 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1226 | } |
1227 | ||
931872fc CW |
1228 | static void assert_plane(struct drm_i915_private *dev_priv, |
1229 | enum plane plane, bool state) | |
b24e7179 JB |
1230 | { |
1231 | int reg; | |
1232 | u32 val; | |
931872fc | 1233 | bool cur_state; |
b24e7179 JB |
1234 | |
1235 | reg = DSPCNTR(plane); | |
1236 | val = I915_READ(reg); | |
931872fc CW |
1237 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
1238 | WARN(cur_state != state, | |
1239 | "plane %c assertion failure (expected %s, current %s)\n", | |
1240 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1241 | } |
1242 | ||
931872fc CW |
1243 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1244 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1245 | ||
b24e7179 JB |
1246 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1247 | enum pipe pipe) | |
1248 | { | |
1249 | int reg, i; | |
1250 | u32 val; | |
1251 | int cur_pipe; | |
1252 | ||
19ec1358 | 1253 | /* Planes are fixed to pipes on ILK+ */ |
28c05794 AJ |
1254 | if (HAS_PCH_SPLIT(dev_priv->dev)) { |
1255 | reg = DSPCNTR(pipe); | |
1256 | val = I915_READ(reg); | |
1257 | WARN((val & DISPLAY_PLANE_ENABLE), | |
1258 | "plane %c assertion failure, should be disabled but not\n", | |
1259 | plane_name(pipe)); | |
19ec1358 | 1260 | return; |
28c05794 | 1261 | } |
19ec1358 | 1262 | |
b24e7179 JB |
1263 | /* Need to check both planes against the pipe */ |
1264 | for (i = 0; i < 2; i++) { | |
1265 | reg = DSPCNTR(i); | |
1266 | val = I915_READ(reg); | |
1267 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1268 | DISPPLANE_SEL_PIPE_SHIFT; | |
1269 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, | |
9db4a9c7 JB |
1270 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1271 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1272 | } |
1273 | } | |
1274 | ||
92f2584a JB |
1275 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
1276 | { | |
1277 | u32 val; | |
1278 | bool enabled; | |
1279 | ||
9d82aa17 ED |
1280 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1281 | DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n"); | |
1282 | return; | |
1283 | } | |
1284 | ||
92f2584a JB |
1285 | val = I915_READ(PCH_DREF_CONTROL); |
1286 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1287 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
1288 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); | |
1289 | } | |
1290 | ||
1291 | static void assert_transcoder_disabled(struct drm_i915_private *dev_priv, | |
1292 | enum pipe pipe) | |
1293 | { | |
1294 | int reg; | |
1295 | u32 val; | |
1296 | bool enabled; | |
1297 | ||
1298 | reg = TRANSCONF(pipe); | |
1299 | val = I915_READ(reg); | |
1300 | enabled = !!(val & TRANS_ENABLE); | |
9db4a9c7 JB |
1301 | WARN(enabled, |
1302 | "transcoder assertion failed, should be off on pipe %c but is still active\n", | |
1303 | pipe_name(pipe)); | |
92f2584a JB |
1304 | } |
1305 | ||
4e634389 KP |
1306 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1307 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1308 | { |
1309 | if ((val & DP_PORT_EN) == 0) | |
1310 | return false; | |
1311 | ||
1312 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1313 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); | |
1314 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); | |
1315 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) | |
1316 | return false; | |
1317 | } else { | |
1318 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1319 | return false; | |
1320 | } | |
1321 | return true; | |
1322 | } | |
1323 | ||
1519b995 KP |
1324 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1325 | enum pipe pipe, u32 val) | |
1326 | { | |
1327 | if ((val & PORT_ENABLE) == 0) | |
1328 | return false; | |
1329 | ||
1330 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1331 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1332 | return false; | |
1333 | } else { | |
1334 | if ((val & TRANSCODER_MASK) != TRANSCODER(pipe)) | |
1335 | return false; | |
1336 | } | |
1337 | return true; | |
1338 | } | |
1339 | ||
1340 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1341 | enum pipe pipe, u32 val) | |
1342 | { | |
1343 | if ((val & LVDS_PORT_EN) == 0) | |
1344 | return false; | |
1345 | ||
1346 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1347 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1348 | return false; | |
1349 | } else { | |
1350 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1351 | return false; | |
1352 | } | |
1353 | return true; | |
1354 | } | |
1355 | ||
1356 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1357 | enum pipe pipe, u32 val) | |
1358 | { | |
1359 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1360 | return false; | |
1361 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1362 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1363 | return false; | |
1364 | } else { | |
1365 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1366 | return false; | |
1367 | } | |
1368 | return true; | |
1369 | } | |
1370 | ||
291906f1 | 1371 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0575e92 | 1372 | enum pipe pipe, int reg, u32 port_sel) |
291906f1 | 1373 | { |
47a05eca | 1374 | u32 val = I915_READ(reg); |
4e634389 | 1375 | WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1376 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1377 | reg, pipe_name(pipe)); |
de9a35ab DV |
1378 | |
1379 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT), | |
1380 | "IBX PCH dp port still using transcoder B\n"); | |
291906f1 JB |
1381 | } |
1382 | ||
1383 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1384 | enum pipe pipe, int reg) | |
1385 | { | |
47a05eca | 1386 | u32 val = I915_READ(reg); |
e9a851ed | 1387 | WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1388 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1389 | reg, pipe_name(pipe)); |
de9a35ab DV |
1390 | |
1391 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT), | |
1392 | "IBX PCH hdmi port still using transcoder B\n"); | |
291906f1 JB |
1393 | } |
1394 | ||
1395 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1396 | enum pipe pipe) | |
1397 | { | |
1398 | int reg; | |
1399 | u32 val; | |
291906f1 | 1400 | |
f0575e92 KP |
1401 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1402 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1403 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1404 | |
1405 | reg = PCH_ADPA; | |
1406 | val = I915_READ(reg); | |
e9a851ed | 1407 | WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1408 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1409 | pipe_name(pipe)); |
291906f1 JB |
1410 | |
1411 | reg = PCH_LVDS; | |
1412 | val = I915_READ(reg); | |
e9a851ed | 1413 | WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1414 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1415 | pipe_name(pipe)); |
291906f1 JB |
1416 | |
1417 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB); | |
1418 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC); | |
1419 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMID); | |
1420 | } | |
1421 | ||
63d7bbe9 JB |
1422 | /** |
1423 | * intel_enable_pll - enable a PLL | |
1424 | * @dev_priv: i915 private structure | |
1425 | * @pipe: pipe PLL to enable | |
1426 | * | |
1427 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to | |
1428 | * make sure the PLL reg is writable first though, since the panel write | |
1429 | * protect mechanism may be enabled. | |
1430 | * | |
1431 | * Note! This is for pre-ILK only. | |
7434a255 TR |
1432 | * |
1433 | * Unfortunately needed by dvo_ns2501 since the dvo depends on it running. | |
63d7bbe9 | 1434 | */ |
a37b9b34 | 1435 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
63d7bbe9 JB |
1436 | { |
1437 | int reg; | |
1438 | u32 val; | |
1439 | ||
1440 | /* No really, not for ILK+ */ | |
a0c4da24 | 1441 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5); |
63d7bbe9 JB |
1442 | |
1443 | /* PLL is protected by panel, make sure we can write it */ | |
1444 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) | |
1445 | assert_panel_unlocked(dev_priv, pipe); | |
1446 | ||
1447 | reg = DPLL(pipe); | |
1448 | val = I915_READ(reg); | |
1449 | val |= DPLL_VCO_ENABLE; | |
1450 | ||
1451 | /* We do this three times for luck */ | |
1452 | I915_WRITE(reg, val); | |
1453 | POSTING_READ(reg); | |
1454 | udelay(150); /* wait for warmup */ | |
1455 | I915_WRITE(reg, val); | |
1456 | POSTING_READ(reg); | |
1457 | udelay(150); /* wait for warmup */ | |
1458 | I915_WRITE(reg, val); | |
1459 | POSTING_READ(reg); | |
1460 | udelay(150); /* wait for warmup */ | |
1461 | } | |
1462 | ||
1463 | /** | |
1464 | * intel_disable_pll - disable a PLL | |
1465 | * @dev_priv: i915 private structure | |
1466 | * @pipe: pipe PLL to disable | |
1467 | * | |
1468 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1469 | * | |
1470 | * Note! This is for pre-ILK only. | |
1471 | */ | |
1472 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1473 | { | |
1474 | int reg; | |
1475 | u32 val; | |
1476 | ||
1477 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1478 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1479 | return; | |
1480 | ||
1481 | /* Make sure the pipe isn't still relying on us */ | |
1482 | assert_pipe_disabled(dev_priv, pipe); | |
1483 | ||
1484 | reg = DPLL(pipe); | |
1485 | val = I915_READ(reg); | |
1486 | val &= ~DPLL_VCO_ENABLE; | |
1487 | I915_WRITE(reg, val); | |
1488 | POSTING_READ(reg); | |
1489 | } | |
1490 | ||
a416edef ED |
1491 | /* SBI access */ |
1492 | static void | |
1493 | intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value) | |
1494 | { | |
1495 | unsigned long flags; | |
1496 | ||
1497 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
39fb50f6 | 1498 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
a416edef ED |
1499 | 100)) { |
1500 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1501 | goto out_unlock; | |
1502 | } | |
1503 | ||
1504 | I915_WRITE(SBI_ADDR, | |
1505 | (reg << 16)); | |
1506 | I915_WRITE(SBI_DATA, | |
1507 | value); | |
1508 | I915_WRITE(SBI_CTL_STAT, | |
1509 | SBI_BUSY | | |
1510 | SBI_CTL_OP_CRWR); | |
1511 | ||
39fb50f6 | 1512 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
a416edef ED |
1513 | 100)) { |
1514 | DRM_ERROR("timeout waiting for SBI to complete write transaction\n"); | |
1515 | goto out_unlock; | |
1516 | } | |
1517 | ||
1518 | out_unlock: | |
1519 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1520 | } | |
1521 | ||
1522 | static u32 | |
1523 | intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg) | |
1524 | { | |
1525 | unsigned long flags; | |
39fb50f6 | 1526 | u32 value = 0; |
a416edef ED |
1527 | |
1528 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
39fb50f6 | 1529 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
a416edef ED |
1530 | 100)) { |
1531 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1532 | goto out_unlock; | |
1533 | } | |
1534 | ||
1535 | I915_WRITE(SBI_ADDR, | |
1536 | (reg << 16)); | |
1537 | I915_WRITE(SBI_CTL_STAT, | |
1538 | SBI_BUSY | | |
1539 | SBI_CTL_OP_CRRD); | |
1540 | ||
39fb50f6 | 1541 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
a416edef ED |
1542 | 100)) { |
1543 | DRM_ERROR("timeout waiting for SBI to complete read transaction\n"); | |
1544 | goto out_unlock; | |
1545 | } | |
1546 | ||
1547 | value = I915_READ(SBI_DATA); | |
1548 | ||
1549 | out_unlock: | |
1550 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1551 | return value; | |
1552 | } | |
1553 | ||
92f2584a JB |
1554 | /** |
1555 | * intel_enable_pch_pll - enable PCH PLL | |
1556 | * @dev_priv: i915 private structure | |
1557 | * @pipe: pipe PLL to enable | |
1558 | * | |
1559 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1560 | * drives the transcoder clock. | |
1561 | */ | |
ee7b9f93 | 1562 | static void intel_enable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1563 | { |
ee7b9f93 | 1564 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
48da64a8 | 1565 | struct intel_pch_pll *pll; |
92f2584a JB |
1566 | int reg; |
1567 | u32 val; | |
1568 | ||
48da64a8 | 1569 | /* PCH PLLs only available on ILK, SNB and IVB */ |
92f2584a | 1570 | BUG_ON(dev_priv->info->gen < 5); |
48da64a8 CW |
1571 | pll = intel_crtc->pch_pll; |
1572 | if (pll == NULL) | |
1573 | return; | |
1574 | ||
1575 | if (WARN_ON(pll->refcount == 0)) | |
1576 | return; | |
ee7b9f93 JB |
1577 | |
1578 | DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n", | |
1579 | pll->pll_reg, pll->active, pll->on, | |
1580 | intel_crtc->base.base.id); | |
92f2584a JB |
1581 | |
1582 | /* PCH refclock must be enabled first */ | |
1583 | assert_pch_refclk_enabled(dev_priv); | |
1584 | ||
ee7b9f93 | 1585 | if (pll->active++ && pll->on) { |
92b27b08 | 1586 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
ee7b9f93 JB |
1587 | return; |
1588 | } | |
1589 | ||
1590 | DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg); | |
1591 | ||
1592 | reg = pll->pll_reg; | |
92f2584a JB |
1593 | val = I915_READ(reg); |
1594 | val |= DPLL_VCO_ENABLE; | |
1595 | I915_WRITE(reg, val); | |
1596 | POSTING_READ(reg); | |
1597 | udelay(200); | |
ee7b9f93 JB |
1598 | |
1599 | pll->on = true; | |
92f2584a JB |
1600 | } |
1601 | ||
ee7b9f93 | 1602 | static void intel_disable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1603 | { |
ee7b9f93 JB |
1604 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
1605 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
92f2584a | 1606 | int reg; |
ee7b9f93 | 1607 | u32 val; |
4c609cb8 | 1608 | |
92f2584a JB |
1609 | /* PCH only available on ILK+ */ |
1610 | BUG_ON(dev_priv->info->gen < 5); | |
ee7b9f93 JB |
1611 | if (pll == NULL) |
1612 | return; | |
92f2584a | 1613 | |
48da64a8 CW |
1614 | if (WARN_ON(pll->refcount == 0)) |
1615 | return; | |
7a419866 | 1616 | |
ee7b9f93 JB |
1617 | DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n", |
1618 | pll->pll_reg, pll->active, pll->on, | |
1619 | intel_crtc->base.base.id); | |
7a419866 | 1620 | |
48da64a8 | 1621 | if (WARN_ON(pll->active == 0)) { |
92b27b08 | 1622 | assert_pch_pll_disabled(dev_priv, pll, NULL); |
48da64a8 CW |
1623 | return; |
1624 | } | |
1625 | ||
ee7b9f93 | 1626 | if (--pll->active) { |
92b27b08 | 1627 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
7a419866 | 1628 | return; |
ee7b9f93 JB |
1629 | } |
1630 | ||
1631 | DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg); | |
1632 | ||
1633 | /* Make sure transcoder isn't still depending on us */ | |
1634 | assert_transcoder_disabled(dev_priv, intel_crtc->pipe); | |
7a419866 | 1635 | |
ee7b9f93 | 1636 | reg = pll->pll_reg; |
92f2584a JB |
1637 | val = I915_READ(reg); |
1638 | val &= ~DPLL_VCO_ENABLE; | |
1639 | I915_WRITE(reg, val); | |
1640 | POSTING_READ(reg); | |
1641 | udelay(200); | |
ee7b9f93 JB |
1642 | |
1643 | pll->on = false; | |
92f2584a JB |
1644 | } |
1645 | ||
040484af JB |
1646 | static void intel_enable_transcoder(struct drm_i915_private *dev_priv, |
1647 | enum pipe pipe) | |
1648 | { | |
1649 | int reg; | |
5f7f726d | 1650 | u32 val, pipeconf_val; |
7c26e5c6 | 1651 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
040484af JB |
1652 | |
1653 | /* PCH only available on ILK+ */ | |
1654 | BUG_ON(dev_priv->info->gen < 5); | |
1655 | ||
1656 | /* Make sure PCH DPLL is enabled */ | |
92b27b08 CW |
1657 | assert_pch_pll_enabled(dev_priv, |
1658 | to_intel_crtc(crtc)->pch_pll, | |
1659 | to_intel_crtc(crtc)); | |
040484af JB |
1660 | |
1661 | /* FDI must be feeding us bits for PCH ports */ | |
1662 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1663 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1664 | ||
59c859d6 ED |
1665 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1666 | DRM_ERROR("Attempting to enable transcoder on Haswell with pipe > 0\n"); | |
1667 | return; | |
1668 | } | |
040484af JB |
1669 | reg = TRANSCONF(pipe); |
1670 | val = I915_READ(reg); | |
5f7f726d | 1671 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1672 | |
1673 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1674 | /* | |
1675 | * make the BPC in transcoder be consistent with | |
1676 | * that in pipeconf reg. | |
1677 | */ | |
1678 | val &= ~PIPE_BPC_MASK; | |
5f7f726d | 1679 | val |= pipeconf_val & PIPE_BPC_MASK; |
e9bcff5c | 1680 | } |
5f7f726d PZ |
1681 | |
1682 | val &= ~TRANS_INTERLACE_MASK; | |
1683 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 PZ |
1684 | if (HAS_PCH_IBX(dev_priv->dev) && |
1685 | intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) | |
1686 | val |= TRANS_LEGACY_INTERLACED_ILK; | |
1687 | else | |
1688 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1689 | else |
1690 | val |= TRANS_PROGRESSIVE; | |
1691 | ||
040484af JB |
1692 | I915_WRITE(reg, val | TRANS_ENABLE); |
1693 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
1694 | DRM_ERROR("failed to enable transcoder %d\n", pipe); | |
1695 | } | |
1696 | ||
1697 | static void intel_disable_transcoder(struct drm_i915_private *dev_priv, | |
1698 | enum pipe pipe) | |
1699 | { | |
1700 | int reg; | |
1701 | u32 val; | |
1702 | ||
1703 | /* FDI relies on the transcoder */ | |
1704 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1705 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1706 | ||
291906f1 JB |
1707 | /* Ports must be off as well */ |
1708 | assert_pch_ports_disabled(dev_priv, pipe); | |
1709 | ||
040484af JB |
1710 | reg = TRANSCONF(pipe); |
1711 | val = I915_READ(reg); | |
1712 | val &= ~TRANS_ENABLE; | |
1713 | I915_WRITE(reg, val); | |
1714 | /* wait for PCH transcoder off, transcoder state */ | |
1715 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4c9c18c2 | 1716 | DRM_ERROR("failed to disable transcoder %d\n", pipe); |
040484af JB |
1717 | } |
1718 | ||
b24e7179 | 1719 | /** |
309cfea8 | 1720 | * intel_enable_pipe - enable a pipe, asserting requirements |
b24e7179 JB |
1721 | * @dev_priv: i915 private structure |
1722 | * @pipe: pipe to enable | |
040484af | 1723 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
b24e7179 JB |
1724 | * |
1725 | * Enable @pipe, making sure that various hardware specific requirements | |
1726 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. | |
1727 | * | |
1728 | * @pipe should be %PIPE_A or %PIPE_B. | |
1729 | * | |
1730 | * Will wait until the pipe is actually running (i.e. first vblank) before | |
1731 | * returning. | |
1732 | */ | |
040484af JB |
1733 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
1734 | bool pch_port) | |
b24e7179 JB |
1735 | { |
1736 | int reg; | |
1737 | u32 val; | |
1738 | ||
1739 | /* | |
1740 | * A pipe without a PLL won't actually be able to drive bits from | |
1741 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
1742 | * need the check. | |
1743 | */ | |
1744 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
1745 | assert_pll_enabled(dev_priv, pipe); | |
040484af JB |
1746 | else { |
1747 | if (pch_port) { | |
1748 | /* if driving the PCH, we need FDI enabled */ | |
1749 | assert_fdi_rx_pll_enabled(dev_priv, pipe); | |
1750 | assert_fdi_tx_pll_enabled(dev_priv, pipe); | |
1751 | } | |
1752 | /* FIXME: assert CPU port conditions for SNB+ */ | |
1753 | } | |
b24e7179 JB |
1754 | |
1755 | reg = PIPECONF(pipe); | |
1756 | val = I915_READ(reg); | |
00d70b15 CW |
1757 | if (val & PIPECONF_ENABLE) |
1758 | return; | |
1759 | ||
1760 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
b24e7179 JB |
1761 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1762 | } | |
1763 | ||
1764 | /** | |
309cfea8 | 1765 | * intel_disable_pipe - disable a pipe, asserting requirements |
b24e7179 JB |
1766 | * @dev_priv: i915 private structure |
1767 | * @pipe: pipe to disable | |
1768 | * | |
1769 | * Disable @pipe, making sure that various hardware specific requirements | |
1770 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. | |
1771 | * | |
1772 | * @pipe should be %PIPE_A or %PIPE_B. | |
1773 | * | |
1774 | * Will wait until the pipe has shut down before returning. | |
1775 | */ | |
1776 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, | |
1777 | enum pipe pipe) | |
1778 | { | |
1779 | int reg; | |
1780 | u32 val; | |
1781 | ||
1782 | /* | |
1783 | * Make sure planes won't keep trying to pump pixels to us, | |
1784 | * or we might hang the display. | |
1785 | */ | |
1786 | assert_planes_disabled(dev_priv, pipe); | |
1787 | ||
1788 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1789 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1790 | return; | |
1791 | ||
1792 | reg = PIPECONF(pipe); | |
1793 | val = I915_READ(reg); | |
00d70b15 CW |
1794 | if ((val & PIPECONF_ENABLE) == 0) |
1795 | return; | |
1796 | ||
1797 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); | |
b24e7179 JB |
1798 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
1799 | } | |
1800 | ||
d74362c9 KP |
1801 | /* |
1802 | * Plane regs are double buffered, going from enabled->disabled needs a | |
1803 | * trigger in order to latch. The display address reg provides this. | |
1804 | */ | |
6f1d69b0 | 1805 | void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
d74362c9 KP |
1806 | enum plane plane) |
1807 | { | |
1808 | I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane))); | |
1809 | I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane))); | |
1810 | } | |
1811 | ||
b24e7179 JB |
1812 | /** |
1813 | * intel_enable_plane - enable a display plane on a given pipe | |
1814 | * @dev_priv: i915 private structure | |
1815 | * @plane: plane to enable | |
1816 | * @pipe: pipe being fed | |
1817 | * | |
1818 | * Enable @plane on @pipe, making sure that @pipe is running first. | |
1819 | */ | |
1820 | static void intel_enable_plane(struct drm_i915_private *dev_priv, | |
1821 | enum plane plane, enum pipe pipe) | |
1822 | { | |
1823 | int reg; | |
1824 | u32 val; | |
1825 | ||
1826 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
1827 | assert_pipe_enabled(dev_priv, pipe); | |
1828 | ||
1829 | reg = DSPCNTR(plane); | |
1830 | val = I915_READ(reg); | |
00d70b15 CW |
1831 | if (val & DISPLAY_PLANE_ENABLE) |
1832 | return; | |
1833 | ||
1834 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); | |
d74362c9 | 1835 | intel_flush_display_plane(dev_priv, plane); |
b24e7179 JB |
1836 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1837 | } | |
1838 | ||
b24e7179 JB |
1839 | /** |
1840 | * intel_disable_plane - disable a display plane | |
1841 | * @dev_priv: i915 private structure | |
1842 | * @plane: plane to disable | |
1843 | * @pipe: pipe consuming the data | |
1844 | * | |
1845 | * Disable @plane; should be an independent operation. | |
1846 | */ | |
1847 | static void intel_disable_plane(struct drm_i915_private *dev_priv, | |
1848 | enum plane plane, enum pipe pipe) | |
1849 | { | |
1850 | int reg; | |
1851 | u32 val; | |
1852 | ||
1853 | reg = DSPCNTR(plane); | |
1854 | val = I915_READ(reg); | |
00d70b15 CW |
1855 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
1856 | return; | |
1857 | ||
1858 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); | |
b24e7179 JB |
1859 | intel_flush_display_plane(dev_priv, plane); |
1860 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1861 | } | |
1862 | ||
47a05eca | 1863 | static void disable_pch_dp(struct drm_i915_private *dev_priv, |
f0575e92 | 1864 | enum pipe pipe, int reg, u32 port_sel) |
47a05eca JB |
1865 | { |
1866 | u32 val = I915_READ(reg); | |
4e634389 | 1867 | if (dp_pipe_enabled(dev_priv, pipe, port_sel, val)) { |
f0575e92 | 1868 | DRM_DEBUG_KMS("Disabling pch dp %x on pipe %d\n", reg, pipe); |
47a05eca | 1869 | I915_WRITE(reg, val & ~DP_PORT_EN); |
f0575e92 | 1870 | } |
47a05eca JB |
1871 | } |
1872 | ||
1873 | static void disable_pch_hdmi(struct drm_i915_private *dev_priv, | |
1874 | enum pipe pipe, int reg) | |
1875 | { | |
1876 | u32 val = I915_READ(reg); | |
e9a851ed | 1877 | if (hdmi_pipe_enabled(dev_priv, pipe, val)) { |
f0575e92 KP |
1878 | DRM_DEBUG_KMS("Disabling pch HDMI %x on pipe %d\n", |
1879 | reg, pipe); | |
47a05eca | 1880 | I915_WRITE(reg, val & ~PORT_ENABLE); |
f0575e92 | 1881 | } |
47a05eca JB |
1882 | } |
1883 | ||
1884 | /* Disable any ports connected to this transcoder */ | |
1885 | static void intel_disable_pch_ports(struct drm_i915_private *dev_priv, | |
1886 | enum pipe pipe) | |
1887 | { | |
1888 | u32 reg, val; | |
1889 | ||
1890 | val = I915_READ(PCH_PP_CONTROL); | |
1891 | I915_WRITE(PCH_PP_CONTROL, val | PANEL_UNLOCK_REGS); | |
1892 | ||
f0575e92 KP |
1893 | disable_pch_dp(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1894 | disable_pch_dp(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1895 | disable_pch_dp(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
47a05eca JB |
1896 | |
1897 | reg = PCH_ADPA; | |
1898 | val = I915_READ(reg); | |
e9a851ed | 1899 | if (adpa_pipe_enabled(dev_priv, pipe, val)) |
47a05eca JB |
1900 | I915_WRITE(reg, val & ~ADPA_DAC_ENABLE); |
1901 | ||
1902 | reg = PCH_LVDS; | |
1903 | val = I915_READ(reg); | |
e9a851ed | 1904 | if (lvds_pipe_enabled(dev_priv, pipe, val)) { |
1519b995 | 1905 | DRM_DEBUG_KMS("disable lvds on pipe %d val 0x%08x\n", pipe, val); |
47a05eca JB |
1906 | I915_WRITE(reg, val & ~LVDS_PORT_EN); |
1907 | POSTING_READ(reg); | |
1908 | udelay(100); | |
1909 | } | |
1910 | ||
1911 | disable_pch_hdmi(dev_priv, pipe, HDMIB); | |
1912 | disable_pch_hdmi(dev_priv, pipe, HDMIC); | |
1913 | disable_pch_hdmi(dev_priv, pipe, HDMID); | |
1914 | } | |
1915 | ||
127bd2ac | 1916 | int |
48b956c5 | 1917 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
05394f39 | 1918 | struct drm_i915_gem_object *obj, |
919926ae | 1919 | struct intel_ring_buffer *pipelined) |
6b95a207 | 1920 | { |
ce453d81 | 1921 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
1922 | u32 alignment; |
1923 | int ret; | |
1924 | ||
05394f39 | 1925 | switch (obj->tiling_mode) { |
6b95a207 | 1926 | case I915_TILING_NONE: |
534843da CW |
1927 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
1928 | alignment = 128 * 1024; | |
a6c45cf0 | 1929 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
1930 | alignment = 4 * 1024; |
1931 | else | |
1932 | alignment = 64 * 1024; | |
6b95a207 KH |
1933 | break; |
1934 | case I915_TILING_X: | |
1935 | /* pin() will align the object as required by fence */ | |
1936 | alignment = 0; | |
1937 | break; | |
1938 | case I915_TILING_Y: | |
1939 | /* FIXME: Is this true? */ | |
1940 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); | |
1941 | return -EINVAL; | |
1942 | default: | |
1943 | BUG(); | |
1944 | } | |
1945 | ||
ce453d81 | 1946 | dev_priv->mm.interruptible = false; |
2da3b9b9 | 1947 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
48b956c5 | 1948 | if (ret) |
ce453d81 | 1949 | goto err_interruptible; |
6b95a207 KH |
1950 | |
1951 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
1952 | * fence, whereas 965+ only requires a fence if using | |
1953 | * framebuffer compression. For simplicity, we always install | |
1954 | * a fence as the cost is not that onerous. | |
1955 | */ | |
06d98131 | 1956 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
1957 | if (ret) |
1958 | goto err_unpin; | |
1690e1eb | 1959 | |
9a5a53b3 | 1960 | i915_gem_object_pin_fence(obj); |
6b95a207 | 1961 | |
ce453d81 | 1962 | dev_priv->mm.interruptible = true; |
6b95a207 | 1963 | return 0; |
48b956c5 CW |
1964 | |
1965 | err_unpin: | |
1966 | i915_gem_object_unpin(obj); | |
ce453d81 CW |
1967 | err_interruptible: |
1968 | dev_priv->mm.interruptible = true; | |
48b956c5 | 1969 | return ret; |
6b95a207 KH |
1970 | } |
1971 | ||
1690e1eb CW |
1972 | void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
1973 | { | |
1974 | i915_gem_object_unpin_fence(obj); | |
1975 | i915_gem_object_unpin(obj); | |
1976 | } | |
1977 | ||
c2c75131 DV |
1978 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
1979 | * is assumed to be a power-of-two. */ | |
1980 | static unsigned long gen4_compute_dspaddr_offset_xtiled(int *x, int *y, | |
1981 | unsigned int bpp, | |
1982 | unsigned int pitch) | |
1983 | { | |
1984 | int tile_rows, tiles; | |
1985 | ||
1986 | tile_rows = *y / 8; | |
1987 | *y %= 8; | |
1988 | tiles = *x / (512/bpp); | |
1989 | *x %= 512/bpp; | |
1990 | ||
1991 | return tile_rows * pitch * 8 + tiles * 4096; | |
1992 | } | |
1993 | ||
17638cd6 JB |
1994 | static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
1995 | int x, int y) | |
81255565 JB |
1996 | { |
1997 | struct drm_device *dev = crtc->dev; | |
1998 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1999 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2000 | struct intel_framebuffer *intel_fb; | |
05394f39 | 2001 | struct drm_i915_gem_object *obj; |
81255565 | 2002 | int plane = intel_crtc->plane; |
e506a0c6 | 2003 | unsigned long linear_offset; |
81255565 | 2004 | u32 dspcntr; |
5eddb70b | 2005 | u32 reg; |
81255565 JB |
2006 | |
2007 | switch (plane) { | |
2008 | case 0: | |
2009 | case 1: | |
2010 | break; | |
2011 | default: | |
2012 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
2013 | return -EINVAL; | |
2014 | } | |
2015 | ||
2016 | intel_fb = to_intel_framebuffer(fb); | |
2017 | obj = intel_fb->obj; | |
81255565 | 2018 | |
5eddb70b CW |
2019 | reg = DSPCNTR(plane); |
2020 | dspcntr = I915_READ(reg); | |
81255565 JB |
2021 | /* Mask out pixel format bits in case we change it */ |
2022 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
2023 | switch (fb->bits_per_pixel) { | |
2024 | case 8: | |
2025 | dspcntr |= DISPPLANE_8BPP; | |
2026 | break; | |
2027 | case 16: | |
2028 | if (fb->depth == 15) | |
2029 | dspcntr |= DISPPLANE_15_16BPP; | |
2030 | else | |
2031 | dspcntr |= DISPPLANE_16BPP; | |
2032 | break; | |
2033 | case 24: | |
2034 | case 32: | |
2035 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
2036 | break; | |
2037 | default: | |
17638cd6 | 2038 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); |
81255565 JB |
2039 | return -EINVAL; |
2040 | } | |
a6c45cf0 | 2041 | if (INTEL_INFO(dev)->gen >= 4) { |
05394f39 | 2042 | if (obj->tiling_mode != I915_TILING_NONE) |
81255565 JB |
2043 | dspcntr |= DISPPLANE_TILED; |
2044 | else | |
2045 | dspcntr &= ~DISPPLANE_TILED; | |
2046 | } | |
2047 | ||
5eddb70b | 2048 | I915_WRITE(reg, dspcntr); |
81255565 | 2049 | |
e506a0c6 | 2050 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
81255565 | 2051 | |
c2c75131 DV |
2052 | if (INTEL_INFO(dev)->gen >= 4) { |
2053 | intel_crtc->dspaddr_offset = | |
2054 | gen4_compute_dspaddr_offset_xtiled(&x, &y, | |
2055 | fb->bits_per_pixel / 8, | |
2056 | fb->pitches[0]); | |
2057 | linear_offset -= intel_crtc->dspaddr_offset; | |
2058 | } else { | |
e506a0c6 | 2059 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 2060 | } |
e506a0c6 DV |
2061 | |
2062 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", | |
2063 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2064 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 2065 | if (INTEL_INFO(dev)->gen >= 4) { |
c2c75131 DV |
2066 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2067 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
5eddb70b | 2068 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2069 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 2070 | } else |
e506a0c6 | 2071 | I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset); |
5eddb70b | 2072 | POSTING_READ(reg); |
81255565 | 2073 | |
17638cd6 JB |
2074 | return 0; |
2075 | } | |
2076 | ||
2077 | static int ironlake_update_plane(struct drm_crtc *crtc, | |
2078 | struct drm_framebuffer *fb, int x, int y) | |
2079 | { | |
2080 | struct drm_device *dev = crtc->dev; | |
2081 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2082 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2083 | struct intel_framebuffer *intel_fb; | |
2084 | struct drm_i915_gem_object *obj; | |
2085 | int plane = intel_crtc->plane; | |
e506a0c6 | 2086 | unsigned long linear_offset; |
17638cd6 JB |
2087 | u32 dspcntr; |
2088 | u32 reg; | |
2089 | ||
2090 | switch (plane) { | |
2091 | case 0: | |
2092 | case 1: | |
27f8227b | 2093 | case 2: |
17638cd6 JB |
2094 | break; |
2095 | default: | |
2096 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
2097 | return -EINVAL; | |
2098 | } | |
2099 | ||
2100 | intel_fb = to_intel_framebuffer(fb); | |
2101 | obj = intel_fb->obj; | |
2102 | ||
2103 | reg = DSPCNTR(plane); | |
2104 | dspcntr = I915_READ(reg); | |
2105 | /* Mask out pixel format bits in case we change it */ | |
2106 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
2107 | switch (fb->bits_per_pixel) { | |
2108 | case 8: | |
2109 | dspcntr |= DISPPLANE_8BPP; | |
2110 | break; | |
2111 | case 16: | |
2112 | if (fb->depth != 16) | |
2113 | return -EINVAL; | |
2114 | ||
2115 | dspcntr |= DISPPLANE_16BPP; | |
2116 | break; | |
2117 | case 24: | |
2118 | case 32: | |
2119 | if (fb->depth == 24) | |
2120 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
2121 | else if (fb->depth == 30) | |
2122 | dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA; | |
2123 | else | |
2124 | return -EINVAL; | |
2125 | break; | |
2126 | default: | |
2127 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); | |
2128 | return -EINVAL; | |
2129 | } | |
2130 | ||
2131 | if (obj->tiling_mode != I915_TILING_NONE) | |
2132 | dspcntr |= DISPPLANE_TILED; | |
2133 | else | |
2134 | dspcntr &= ~DISPPLANE_TILED; | |
2135 | ||
2136 | /* must disable */ | |
2137 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2138 | ||
2139 | I915_WRITE(reg, dspcntr); | |
2140 | ||
e506a0c6 | 2141 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
c2c75131 DV |
2142 | intel_crtc->dspaddr_offset = |
2143 | gen4_compute_dspaddr_offset_xtiled(&x, &y, | |
2144 | fb->bits_per_pixel / 8, | |
2145 | fb->pitches[0]); | |
2146 | linear_offset -= intel_crtc->dspaddr_offset; | |
17638cd6 | 2147 | |
e506a0c6 DV |
2148 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", |
2149 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2150 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
c2c75131 DV |
2151 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2152 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
17638cd6 | 2153 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2154 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
17638cd6 JB |
2155 | POSTING_READ(reg); |
2156 | ||
2157 | return 0; | |
2158 | } | |
2159 | ||
2160 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ | |
2161 | static int | |
2162 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
2163 | int x, int y, enum mode_set_atomic state) | |
2164 | { | |
2165 | struct drm_device *dev = crtc->dev; | |
2166 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 2167 | |
6b8e6ed0 CW |
2168 | if (dev_priv->display.disable_fbc) |
2169 | dev_priv->display.disable_fbc(dev); | |
3dec0095 | 2170 | intel_increase_pllclock(crtc); |
81255565 | 2171 | |
6b8e6ed0 | 2172 | return dev_priv->display.update_plane(crtc, fb, x, y); |
81255565 JB |
2173 | } |
2174 | ||
14667a4b CW |
2175 | static int |
2176 | intel_finish_fb(struct drm_framebuffer *old_fb) | |
2177 | { | |
2178 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; | |
2179 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; | |
2180 | bool was_interruptible = dev_priv->mm.interruptible; | |
2181 | int ret; | |
2182 | ||
2183 | wait_event(dev_priv->pending_flip_queue, | |
2184 | atomic_read(&dev_priv->mm.wedged) || | |
2185 | atomic_read(&obj->pending_flip) == 0); | |
2186 | ||
2187 | /* Big Hammer, we also need to ensure that any pending | |
2188 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
2189 | * current scanout is retired before unpinning the old | |
2190 | * framebuffer. | |
2191 | * | |
2192 | * This should only fail upon a hung GPU, in which case we | |
2193 | * can safely continue. | |
2194 | */ | |
2195 | dev_priv->mm.interruptible = false; | |
2196 | ret = i915_gem_object_finish_gpu(obj); | |
2197 | dev_priv->mm.interruptible = was_interruptible; | |
2198 | ||
2199 | return ret; | |
2200 | } | |
2201 | ||
5c3b82e2 | 2202 | static int |
3c4fdcfb | 2203 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
94352cf9 | 2204 | struct drm_framebuffer *fb) |
79e53945 JB |
2205 | { |
2206 | struct drm_device *dev = crtc->dev; | |
6b8e6ed0 | 2207 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
2208 | struct drm_i915_master_private *master_priv; |
2209 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
94352cf9 | 2210 | struct drm_framebuffer *old_fb; |
5c3b82e2 | 2211 | int ret; |
79e53945 JB |
2212 | |
2213 | /* no fb bound */ | |
94352cf9 | 2214 | if (!fb) { |
a5071c2f | 2215 | DRM_ERROR("No FB bound\n"); |
5c3b82e2 CW |
2216 | return 0; |
2217 | } | |
2218 | ||
5826eca5 ED |
2219 | if(intel_crtc->plane > dev_priv->num_pipe) { |
2220 | DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n", | |
2221 | intel_crtc->plane, | |
2222 | dev_priv->num_pipe); | |
5c3b82e2 | 2223 | return -EINVAL; |
79e53945 JB |
2224 | } |
2225 | ||
5c3b82e2 | 2226 | mutex_lock(&dev->struct_mutex); |
265db958 | 2227 | ret = intel_pin_and_fence_fb_obj(dev, |
94352cf9 | 2228 | to_intel_framebuffer(fb)->obj, |
919926ae | 2229 | NULL); |
5c3b82e2 CW |
2230 | if (ret != 0) { |
2231 | mutex_unlock(&dev->struct_mutex); | |
a5071c2f | 2232 | DRM_ERROR("pin & fence failed\n"); |
5c3b82e2 CW |
2233 | return ret; |
2234 | } | |
79e53945 | 2235 | |
94352cf9 DV |
2236 | if (crtc->fb) |
2237 | intel_finish_fb(crtc->fb); | |
265db958 | 2238 | |
94352cf9 | 2239 | ret = dev_priv->display.update_plane(crtc, fb, x, y); |
4e6cfefc | 2240 | if (ret) { |
94352cf9 | 2241 | intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj); |
5c3b82e2 | 2242 | mutex_unlock(&dev->struct_mutex); |
a5071c2f | 2243 | DRM_ERROR("failed to update base address\n"); |
4e6cfefc | 2244 | return ret; |
79e53945 | 2245 | } |
3c4fdcfb | 2246 | |
94352cf9 DV |
2247 | old_fb = crtc->fb; |
2248 | crtc->fb = fb; | |
2249 | ||
b7f1de28 CW |
2250 | if (old_fb) { |
2251 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
1690e1eb | 2252 | intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj); |
b7f1de28 | 2253 | } |
652c393a | 2254 | |
6b8e6ed0 | 2255 | intel_update_fbc(dev); |
5c3b82e2 | 2256 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
2257 | |
2258 | if (!dev->primary->master) | |
5c3b82e2 | 2259 | return 0; |
79e53945 JB |
2260 | |
2261 | master_priv = dev->primary->master->driver_priv; | |
2262 | if (!master_priv->sarea_priv) | |
5c3b82e2 | 2263 | return 0; |
79e53945 | 2264 | |
265db958 | 2265 | if (intel_crtc->pipe) { |
79e53945 JB |
2266 | master_priv->sarea_priv->pipeB_x = x; |
2267 | master_priv->sarea_priv->pipeB_y = y; | |
5c3b82e2 CW |
2268 | } else { |
2269 | master_priv->sarea_priv->pipeA_x = x; | |
2270 | master_priv->sarea_priv->pipeA_y = y; | |
79e53945 | 2271 | } |
5c3b82e2 CW |
2272 | |
2273 | return 0; | |
79e53945 JB |
2274 | } |
2275 | ||
5eddb70b | 2276 | static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock) |
32f9d658 ZW |
2277 | { |
2278 | struct drm_device *dev = crtc->dev; | |
2279 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2280 | u32 dpa_ctl; | |
2281 | ||
28c97730 | 2282 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
32f9d658 ZW |
2283 | dpa_ctl = I915_READ(DP_A); |
2284 | dpa_ctl &= ~DP_PLL_FREQ_MASK; | |
2285 | ||
2286 | if (clock < 200000) { | |
2287 | u32 temp; | |
2288 | dpa_ctl |= DP_PLL_FREQ_160MHZ; | |
2289 | /* workaround for 160Mhz: | |
2290 | 1) program 0x4600c bits 15:0 = 0x8124 | |
2291 | 2) program 0x46010 bit 0 = 1 | |
2292 | 3) program 0x46034 bit 24 = 1 | |
2293 | 4) program 0x64000 bit 14 = 1 | |
2294 | */ | |
2295 | temp = I915_READ(0x4600c); | |
2296 | temp &= 0xffff0000; | |
2297 | I915_WRITE(0x4600c, temp | 0x8124); | |
2298 | ||
2299 | temp = I915_READ(0x46010); | |
2300 | I915_WRITE(0x46010, temp | 1); | |
2301 | ||
2302 | temp = I915_READ(0x46034); | |
2303 | I915_WRITE(0x46034, temp | (1 << 24)); | |
2304 | } else { | |
2305 | dpa_ctl |= DP_PLL_FREQ_270MHZ; | |
2306 | } | |
2307 | I915_WRITE(DP_A, dpa_ctl); | |
2308 | ||
5eddb70b | 2309 | POSTING_READ(DP_A); |
32f9d658 ZW |
2310 | udelay(500); |
2311 | } | |
2312 | ||
5e84e1a4 ZW |
2313 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
2314 | { | |
2315 | struct drm_device *dev = crtc->dev; | |
2316 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2317 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2318 | int pipe = intel_crtc->pipe; | |
2319 | u32 reg, temp; | |
2320 | ||
2321 | /* enable normal train */ | |
2322 | reg = FDI_TX_CTL(pipe); | |
2323 | temp = I915_READ(reg); | |
61e499bf | 2324 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
2325 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
2326 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
2327 | } else { |
2328 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2329 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 2330 | } |
5e84e1a4 ZW |
2331 | I915_WRITE(reg, temp); |
2332 | ||
2333 | reg = FDI_RX_CTL(pipe); | |
2334 | temp = I915_READ(reg); | |
2335 | if (HAS_PCH_CPT(dev)) { | |
2336 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2337 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2338 | } else { | |
2339 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2340 | temp |= FDI_LINK_TRAIN_NONE; | |
2341 | } | |
2342 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2343 | ||
2344 | /* wait one idle pattern time */ | |
2345 | POSTING_READ(reg); | |
2346 | udelay(1000); | |
357555c0 JB |
2347 | |
2348 | /* IVB wants error correction enabled */ | |
2349 | if (IS_IVYBRIDGE(dev)) | |
2350 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
2351 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
2352 | } |
2353 | ||
291427f5 JB |
2354 | static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe) |
2355 | { | |
2356 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2357 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2358 | ||
2359 | flags |= FDI_PHASE_SYNC_OVR(pipe); | |
2360 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */ | |
2361 | flags |= FDI_PHASE_SYNC_EN(pipe); | |
2362 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */ | |
2363 | POSTING_READ(SOUTH_CHICKEN1); | |
2364 | } | |
2365 | ||
8db9d77b ZW |
2366 | /* The FDI link training functions for ILK/Ibexpeak. */ |
2367 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
2368 | { | |
2369 | struct drm_device *dev = crtc->dev; | |
2370 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2371 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2372 | int pipe = intel_crtc->pipe; | |
0fc932b8 | 2373 | int plane = intel_crtc->plane; |
5eddb70b | 2374 | u32 reg, temp, tries; |
8db9d77b | 2375 | |
0fc932b8 JB |
2376 | /* FDI needs bits from pipe & plane first */ |
2377 | assert_pipe_enabled(dev_priv, pipe); | |
2378 | assert_plane_enabled(dev_priv, plane); | |
2379 | ||
e1a44743 AJ |
2380 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2381 | for train result */ | |
5eddb70b CW |
2382 | reg = FDI_RX_IMR(pipe); |
2383 | temp = I915_READ(reg); | |
e1a44743 AJ |
2384 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2385 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2386 | I915_WRITE(reg, temp); |
2387 | I915_READ(reg); | |
e1a44743 AJ |
2388 | udelay(150); |
2389 | ||
8db9d77b | 2390 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2391 | reg = FDI_TX_CTL(pipe); |
2392 | temp = I915_READ(reg); | |
77ffb597 AJ |
2393 | temp &= ~(7 << 19); |
2394 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2395 | temp &= ~FDI_LINK_TRAIN_NONE; |
2396 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 2397 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2398 | |
5eddb70b CW |
2399 | reg = FDI_RX_CTL(pipe); |
2400 | temp = I915_READ(reg); | |
8db9d77b ZW |
2401 | temp &= ~FDI_LINK_TRAIN_NONE; |
2402 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
2403 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2404 | ||
2405 | POSTING_READ(reg); | |
8db9d77b ZW |
2406 | udelay(150); |
2407 | ||
5b2adf89 | 2408 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
6f06ce18 JB |
2409 | if (HAS_PCH_IBX(dev)) { |
2410 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
2411 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
2412 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
2413 | } | |
5b2adf89 | 2414 | |
5eddb70b | 2415 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2416 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2417 | temp = I915_READ(reg); |
8db9d77b ZW |
2418 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2419 | ||
2420 | if ((temp & FDI_RX_BIT_LOCK)) { | |
2421 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 2422 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
2423 | break; |
2424 | } | |
8db9d77b | 2425 | } |
e1a44743 | 2426 | if (tries == 5) |
5eddb70b | 2427 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2428 | |
2429 | /* Train 2 */ | |
5eddb70b CW |
2430 | reg = FDI_TX_CTL(pipe); |
2431 | temp = I915_READ(reg); | |
8db9d77b ZW |
2432 | temp &= ~FDI_LINK_TRAIN_NONE; |
2433 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2434 | I915_WRITE(reg, temp); |
8db9d77b | 2435 | |
5eddb70b CW |
2436 | reg = FDI_RX_CTL(pipe); |
2437 | temp = I915_READ(reg); | |
8db9d77b ZW |
2438 | temp &= ~FDI_LINK_TRAIN_NONE; |
2439 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2440 | I915_WRITE(reg, temp); |
8db9d77b | 2441 | |
5eddb70b CW |
2442 | POSTING_READ(reg); |
2443 | udelay(150); | |
8db9d77b | 2444 | |
5eddb70b | 2445 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2446 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2447 | temp = I915_READ(reg); |
8db9d77b ZW |
2448 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2449 | ||
2450 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 2451 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
2452 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
2453 | break; | |
2454 | } | |
8db9d77b | 2455 | } |
e1a44743 | 2456 | if (tries == 5) |
5eddb70b | 2457 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2458 | |
2459 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 2460 | |
8db9d77b ZW |
2461 | } |
2462 | ||
0206e353 | 2463 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
2464 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2465 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
2466 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
2467 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
2468 | }; | |
2469 | ||
2470 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
2471 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
2472 | { | |
2473 | struct drm_device *dev = crtc->dev; | |
2474 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2475 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2476 | int pipe = intel_crtc->pipe; | |
fa37d39e | 2477 | u32 reg, temp, i, retry; |
8db9d77b | 2478 | |
e1a44743 AJ |
2479 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2480 | for train result */ | |
5eddb70b CW |
2481 | reg = FDI_RX_IMR(pipe); |
2482 | temp = I915_READ(reg); | |
e1a44743 AJ |
2483 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2484 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2485 | I915_WRITE(reg, temp); |
2486 | ||
2487 | POSTING_READ(reg); | |
e1a44743 AJ |
2488 | udelay(150); |
2489 | ||
8db9d77b | 2490 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2491 | reg = FDI_TX_CTL(pipe); |
2492 | temp = I915_READ(reg); | |
77ffb597 AJ |
2493 | temp &= ~(7 << 19); |
2494 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2495 | temp &= ~FDI_LINK_TRAIN_NONE; |
2496 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2497 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2498 | /* SNB-B */ | |
2499 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 2500 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2501 | |
5eddb70b CW |
2502 | reg = FDI_RX_CTL(pipe); |
2503 | temp = I915_READ(reg); | |
8db9d77b ZW |
2504 | if (HAS_PCH_CPT(dev)) { |
2505 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2506 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2507 | } else { | |
2508 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2509 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2510 | } | |
5eddb70b CW |
2511 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2512 | ||
2513 | POSTING_READ(reg); | |
8db9d77b ZW |
2514 | udelay(150); |
2515 | ||
291427f5 JB |
2516 | if (HAS_PCH_CPT(dev)) |
2517 | cpt_phase_pointer_enable(dev, pipe); | |
2518 | ||
0206e353 | 2519 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2520 | reg = FDI_TX_CTL(pipe); |
2521 | temp = I915_READ(reg); | |
8db9d77b ZW |
2522 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2523 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2524 | I915_WRITE(reg, temp); |
2525 | ||
2526 | POSTING_READ(reg); | |
8db9d77b ZW |
2527 | udelay(500); |
2528 | ||
fa37d39e SP |
2529 | for (retry = 0; retry < 5; retry++) { |
2530 | reg = FDI_RX_IIR(pipe); | |
2531 | temp = I915_READ(reg); | |
2532 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2533 | if (temp & FDI_RX_BIT_LOCK) { | |
2534 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2535 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2536 | break; | |
2537 | } | |
2538 | udelay(50); | |
8db9d77b | 2539 | } |
fa37d39e SP |
2540 | if (retry < 5) |
2541 | break; | |
8db9d77b ZW |
2542 | } |
2543 | if (i == 4) | |
5eddb70b | 2544 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2545 | |
2546 | /* Train 2 */ | |
5eddb70b CW |
2547 | reg = FDI_TX_CTL(pipe); |
2548 | temp = I915_READ(reg); | |
8db9d77b ZW |
2549 | temp &= ~FDI_LINK_TRAIN_NONE; |
2550 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2551 | if (IS_GEN6(dev)) { | |
2552 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2553 | /* SNB-B */ | |
2554 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2555 | } | |
5eddb70b | 2556 | I915_WRITE(reg, temp); |
8db9d77b | 2557 | |
5eddb70b CW |
2558 | reg = FDI_RX_CTL(pipe); |
2559 | temp = I915_READ(reg); | |
8db9d77b ZW |
2560 | if (HAS_PCH_CPT(dev)) { |
2561 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2562 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2563 | } else { | |
2564 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2565 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2566 | } | |
5eddb70b CW |
2567 | I915_WRITE(reg, temp); |
2568 | ||
2569 | POSTING_READ(reg); | |
8db9d77b ZW |
2570 | udelay(150); |
2571 | ||
0206e353 | 2572 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2573 | reg = FDI_TX_CTL(pipe); |
2574 | temp = I915_READ(reg); | |
8db9d77b ZW |
2575 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2576 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2577 | I915_WRITE(reg, temp); |
2578 | ||
2579 | POSTING_READ(reg); | |
8db9d77b ZW |
2580 | udelay(500); |
2581 | ||
fa37d39e SP |
2582 | for (retry = 0; retry < 5; retry++) { |
2583 | reg = FDI_RX_IIR(pipe); | |
2584 | temp = I915_READ(reg); | |
2585 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2586 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2587 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2588 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2589 | break; | |
2590 | } | |
2591 | udelay(50); | |
8db9d77b | 2592 | } |
fa37d39e SP |
2593 | if (retry < 5) |
2594 | break; | |
8db9d77b ZW |
2595 | } |
2596 | if (i == 4) | |
5eddb70b | 2597 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2598 | |
2599 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2600 | } | |
2601 | ||
357555c0 JB |
2602 | /* Manual link training for Ivy Bridge A0 parts */ |
2603 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
2604 | { | |
2605 | struct drm_device *dev = crtc->dev; | |
2606 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2607 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2608 | int pipe = intel_crtc->pipe; | |
2609 | u32 reg, temp, i; | |
2610 | ||
2611 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
2612 | for train result */ | |
2613 | reg = FDI_RX_IMR(pipe); | |
2614 | temp = I915_READ(reg); | |
2615 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
2616 | temp &= ~FDI_RX_BIT_LOCK; | |
2617 | I915_WRITE(reg, temp); | |
2618 | ||
2619 | POSTING_READ(reg); | |
2620 | udelay(150); | |
2621 | ||
2622 | /* enable CPU FDI TX and PCH FDI RX */ | |
2623 | reg = FDI_TX_CTL(pipe); | |
2624 | temp = I915_READ(reg); | |
2625 | temp &= ~(7 << 19); | |
2626 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
2627 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
2628 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; | |
2629 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2630 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
c4f9c4c2 | 2631 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2632 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
2633 | ||
2634 | reg = FDI_RX_CTL(pipe); | |
2635 | temp = I915_READ(reg); | |
2636 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
2637 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2638 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
c4f9c4c2 | 2639 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2640 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2641 | ||
2642 | POSTING_READ(reg); | |
2643 | udelay(150); | |
2644 | ||
291427f5 JB |
2645 | if (HAS_PCH_CPT(dev)) |
2646 | cpt_phase_pointer_enable(dev, pipe); | |
2647 | ||
0206e353 | 2648 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2649 | reg = FDI_TX_CTL(pipe); |
2650 | temp = I915_READ(reg); | |
2651 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2652 | temp |= snb_b_fdi_train_param[i]; | |
2653 | I915_WRITE(reg, temp); | |
2654 | ||
2655 | POSTING_READ(reg); | |
2656 | udelay(500); | |
2657 | ||
2658 | reg = FDI_RX_IIR(pipe); | |
2659 | temp = I915_READ(reg); | |
2660 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2661 | ||
2662 | if (temp & FDI_RX_BIT_LOCK || | |
2663 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
2664 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2665 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2666 | break; | |
2667 | } | |
2668 | } | |
2669 | if (i == 4) | |
2670 | DRM_ERROR("FDI train 1 fail!\n"); | |
2671 | ||
2672 | /* Train 2 */ | |
2673 | reg = FDI_TX_CTL(pipe); | |
2674 | temp = I915_READ(reg); | |
2675 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; | |
2676 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
2677 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2678 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2679 | I915_WRITE(reg, temp); | |
2680 | ||
2681 | reg = FDI_RX_CTL(pipe); | |
2682 | temp = I915_READ(reg); | |
2683 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2684 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2685 | I915_WRITE(reg, temp); | |
2686 | ||
2687 | POSTING_READ(reg); | |
2688 | udelay(150); | |
2689 | ||
0206e353 | 2690 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2691 | reg = FDI_TX_CTL(pipe); |
2692 | temp = I915_READ(reg); | |
2693 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2694 | temp |= snb_b_fdi_train_param[i]; | |
2695 | I915_WRITE(reg, temp); | |
2696 | ||
2697 | POSTING_READ(reg); | |
2698 | udelay(500); | |
2699 | ||
2700 | reg = FDI_RX_IIR(pipe); | |
2701 | temp = I915_READ(reg); | |
2702 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2703 | ||
2704 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2705 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2706 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2707 | break; | |
2708 | } | |
2709 | } | |
2710 | if (i == 4) | |
2711 | DRM_ERROR("FDI train 2 fail!\n"); | |
2712 | ||
2713 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2714 | } | |
2715 | ||
88cefb6c | 2716 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 2717 | { |
88cefb6c | 2718 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 2719 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 2720 | int pipe = intel_crtc->pipe; |
5eddb70b | 2721 | u32 reg, temp; |
79e53945 | 2722 | |
c64e311e | 2723 | /* Write the TU size bits so error detection works */ |
5eddb70b CW |
2724 | I915_WRITE(FDI_RX_TUSIZE1(pipe), |
2725 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
c64e311e | 2726 | |
c98e9dcf | 2727 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
2728 | reg = FDI_RX_CTL(pipe); |
2729 | temp = I915_READ(reg); | |
2730 | temp &= ~((0x7 << 19) | (0x7 << 16)); | |
c98e9dcf | 2731 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
5eddb70b CW |
2732 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
2733 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); | |
2734 | ||
2735 | POSTING_READ(reg); | |
c98e9dcf JB |
2736 | udelay(200); |
2737 | ||
2738 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
2739 | temp = I915_READ(reg); |
2740 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
2741 | ||
2742 | POSTING_READ(reg); | |
c98e9dcf JB |
2743 | udelay(200); |
2744 | ||
bf507ef7 ED |
2745 | /* On Haswell, the PLL configuration for ports and pipes is handled |
2746 | * separately, as part of DDI setup */ | |
2747 | if (!IS_HASWELL(dev)) { | |
2748 | /* Enable CPU FDI TX PLL, always on for Ironlake */ | |
2749 | reg = FDI_TX_CTL(pipe); | |
2750 | temp = I915_READ(reg); | |
2751 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
2752 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 2753 | |
bf507ef7 ED |
2754 | POSTING_READ(reg); |
2755 | udelay(100); | |
2756 | } | |
6be4a607 | 2757 | } |
0e23b99d JB |
2758 | } |
2759 | ||
88cefb6c DV |
2760 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
2761 | { | |
2762 | struct drm_device *dev = intel_crtc->base.dev; | |
2763 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2764 | int pipe = intel_crtc->pipe; | |
2765 | u32 reg, temp; | |
2766 | ||
2767 | /* Switch from PCDclk to Rawclk */ | |
2768 | reg = FDI_RX_CTL(pipe); | |
2769 | temp = I915_READ(reg); | |
2770 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
2771 | ||
2772 | /* Disable CPU FDI TX PLL */ | |
2773 | reg = FDI_TX_CTL(pipe); | |
2774 | temp = I915_READ(reg); | |
2775 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
2776 | ||
2777 | POSTING_READ(reg); | |
2778 | udelay(100); | |
2779 | ||
2780 | reg = FDI_RX_CTL(pipe); | |
2781 | temp = I915_READ(reg); | |
2782 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
2783 | ||
2784 | /* Wait for the clocks to turn off. */ | |
2785 | POSTING_READ(reg); | |
2786 | udelay(100); | |
2787 | } | |
2788 | ||
291427f5 JB |
2789 | static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe) |
2790 | { | |
2791 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2792 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2793 | ||
2794 | flags &= ~(FDI_PHASE_SYNC_EN(pipe)); | |
2795 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */ | |
2796 | flags &= ~(FDI_PHASE_SYNC_OVR(pipe)); | |
2797 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */ | |
2798 | POSTING_READ(SOUTH_CHICKEN1); | |
2799 | } | |
0fc932b8 JB |
2800 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
2801 | { | |
2802 | struct drm_device *dev = crtc->dev; | |
2803 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2804 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2805 | int pipe = intel_crtc->pipe; | |
2806 | u32 reg, temp; | |
2807 | ||
2808 | /* disable CPU FDI tx and PCH FDI rx */ | |
2809 | reg = FDI_TX_CTL(pipe); | |
2810 | temp = I915_READ(reg); | |
2811 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
2812 | POSTING_READ(reg); | |
2813 | ||
2814 | reg = FDI_RX_CTL(pipe); | |
2815 | temp = I915_READ(reg); | |
2816 | temp &= ~(0x7 << 16); | |
2817 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2818 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); | |
2819 | ||
2820 | POSTING_READ(reg); | |
2821 | udelay(100); | |
2822 | ||
2823 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
6f06ce18 JB |
2824 | if (HAS_PCH_IBX(dev)) { |
2825 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
0fc932b8 JB |
2826 | I915_WRITE(FDI_RX_CHICKEN(pipe), |
2827 | I915_READ(FDI_RX_CHICKEN(pipe) & | |
6f06ce18 | 2828 | ~FDI_RX_PHASE_SYNC_POINTER_EN)); |
291427f5 JB |
2829 | } else if (HAS_PCH_CPT(dev)) { |
2830 | cpt_phase_pointer_disable(dev, pipe); | |
6f06ce18 | 2831 | } |
0fc932b8 JB |
2832 | |
2833 | /* still set train pattern 1 */ | |
2834 | reg = FDI_TX_CTL(pipe); | |
2835 | temp = I915_READ(reg); | |
2836 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2837 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2838 | I915_WRITE(reg, temp); | |
2839 | ||
2840 | reg = FDI_RX_CTL(pipe); | |
2841 | temp = I915_READ(reg); | |
2842 | if (HAS_PCH_CPT(dev)) { | |
2843 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2844 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2845 | } else { | |
2846 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2847 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2848 | } | |
2849 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
2850 | temp &= ~(0x07 << 16); | |
2851 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2852 | I915_WRITE(reg, temp); | |
2853 | ||
2854 | POSTING_READ(reg); | |
2855 | udelay(100); | |
2856 | } | |
2857 | ||
e6c3a2a6 CW |
2858 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
2859 | { | |
0f91128d | 2860 | struct drm_device *dev = crtc->dev; |
e6c3a2a6 CW |
2861 | |
2862 | if (crtc->fb == NULL) | |
2863 | return; | |
2864 | ||
0f91128d CW |
2865 | mutex_lock(&dev->struct_mutex); |
2866 | intel_finish_fb(crtc->fb); | |
2867 | mutex_unlock(&dev->struct_mutex); | |
e6c3a2a6 CW |
2868 | } |
2869 | ||
040484af JB |
2870 | static bool intel_crtc_driving_pch(struct drm_crtc *crtc) |
2871 | { | |
2872 | struct drm_device *dev = crtc->dev; | |
228d3e36 | 2873 | struct intel_encoder *intel_encoder; |
040484af JB |
2874 | |
2875 | /* | |
2876 | * If there's a non-PCH eDP on this crtc, it must be DP_A, and that | |
2877 | * must be driven by its own crtc; no sharing is possible. | |
2878 | */ | |
228d3e36 | 2879 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
040484af | 2880 | |
6ee8bab0 ED |
2881 | /* On Haswell, LPT PCH handles the VGA connection via FDI, and Haswell |
2882 | * CPU handles all others */ | |
2883 | if (IS_HASWELL(dev)) { | |
2884 | /* It is still unclear how this will work on PPT, so throw up a warning */ | |
2885 | WARN_ON(!HAS_PCH_LPT(dev)); | |
2886 | ||
228d3e36 | 2887 | if (intel_encoder->type == INTEL_OUTPUT_ANALOG) { |
6ee8bab0 ED |
2888 | DRM_DEBUG_KMS("Haswell detected DAC encoder, assuming is PCH\n"); |
2889 | return true; | |
2890 | } else { | |
2891 | DRM_DEBUG_KMS("Haswell detected encoder %d, assuming is CPU\n", | |
228d3e36 | 2892 | intel_encoder->type); |
6ee8bab0 ED |
2893 | return false; |
2894 | } | |
2895 | } | |
2896 | ||
228d3e36 | 2897 | switch (intel_encoder->type) { |
040484af | 2898 | case INTEL_OUTPUT_EDP: |
228d3e36 | 2899 | if (!intel_encoder_is_pch_edp(&intel_encoder->base)) |
040484af JB |
2900 | return false; |
2901 | continue; | |
2902 | } | |
2903 | } | |
2904 | ||
2905 | return true; | |
2906 | } | |
2907 | ||
e615efe4 ED |
2908 | /* Program iCLKIP clock to the desired frequency */ |
2909 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
2910 | { | |
2911 | struct drm_device *dev = crtc->dev; | |
2912 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2913 | u32 divsel, phaseinc, auxdiv, phasedir = 0; | |
2914 | u32 temp; | |
2915 | ||
2916 | /* It is necessary to ungate the pixclk gate prior to programming | |
2917 | * the divisors, and gate it back when it is done. | |
2918 | */ | |
2919 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
2920 | ||
2921 | /* Disable SSCCTL */ | |
2922 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
2923 | intel_sbi_read(dev_priv, SBI_SSCCTL6) | | |
2924 | SBI_SSCCTL_DISABLE); | |
2925 | ||
2926 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
2927 | if (crtc->mode.clock == 20000) { | |
2928 | auxdiv = 1; | |
2929 | divsel = 0x41; | |
2930 | phaseinc = 0x20; | |
2931 | } else { | |
2932 | /* The iCLK virtual clock root frequency is in MHz, | |
2933 | * but the crtc->mode.clock in in KHz. To get the divisors, | |
2934 | * it is necessary to divide one by another, so we | |
2935 | * convert the virtual clock precision to KHz here for higher | |
2936 | * precision. | |
2937 | */ | |
2938 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
2939 | u32 iclk_pi_range = 64; | |
2940 | u32 desired_divisor, msb_divisor_value, pi_value; | |
2941 | ||
2942 | desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock); | |
2943 | msb_divisor_value = desired_divisor / iclk_pi_range; | |
2944 | pi_value = desired_divisor % iclk_pi_range; | |
2945 | ||
2946 | auxdiv = 0; | |
2947 | divsel = msb_divisor_value - 2; | |
2948 | phaseinc = pi_value; | |
2949 | } | |
2950 | ||
2951 | /* This should not happen with any sane values */ | |
2952 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
2953 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
2954 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
2955 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
2956 | ||
2957 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
2958 | crtc->mode.clock, | |
2959 | auxdiv, | |
2960 | divsel, | |
2961 | phasedir, | |
2962 | phaseinc); | |
2963 | ||
2964 | /* Program SSCDIVINTPHASE6 */ | |
2965 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6); | |
2966 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; | |
2967 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
2968 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
2969 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
2970 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
2971 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
2972 | ||
2973 | intel_sbi_write(dev_priv, | |
2974 | SBI_SSCDIVINTPHASE6, | |
2975 | temp); | |
2976 | ||
2977 | /* Program SSCAUXDIV */ | |
2978 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6); | |
2979 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); | |
2980 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
2981 | intel_sbi_write(dev_priv, | |
2982 | SBI_SSCAUXDIV6, | |
2983 | temp); | |
2984 | ||
2985 | ||
2986 | /* Enable modulator and associated divider */ | |
2987 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6); | |
2988 | temp &= ~SBI_SSCCTL_DISABLE; | |
2989 | intel_sbi_write(dev_priv, | |
2990 | SBI_SSCCTL6, | |
2991 | temp); | |
2992 | ||
2993 | /* Wait for initialization time */ | |
2994 | udelay(24); | |
2995 | ||
2996 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
2997 | } | |
2998 | ||
f67a559d JB |
2999 | /* |
3000 | * Enable PCH resources required for PCH ports: | |
3001 | * - PCH PLLs | |
3002 | * - FDI training & RX/TX | |
3003 | * - update transcoder timings | |
3004 | * - DP transcoding bits | |
3005 | * - transcoder | |
3006 | */ | |
3007 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
3008 | { |
3009 | struct drm_device *dev = crtc->dev; | |
3010 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3011 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3012 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 3013 | u32 reg, temp; |
2c07245f | 3014 | |
e7e164db CW |
3015 | assert_transcoder_disabled(dev_priv, pipe); |
3016 | ||
c98e9dcf | 3017 | /* For PCH output, training FDI link */ |
674cf967 | 3018 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 3019 | |
6f13b7b5 CW |
3020 | intel_enable_pch_pll(intel_crtc); |
3021 | ||
e615efe4 ED |
3022 | if (HAS_PCH_LPT(dev)) { |
3023 | DRM_DEBUG_KMS("LPT detected: programming iCLKIP\n"); | |
3024 | lpt_program_iclkip(crtc); | |
3025 | } else if (HAS_PCH_CPT(dev)) { | |
ee7b9f93 | 3026 | u32 sel; |
4b645f14 | 3027 | |
c98e9dcf | 3028 | temp = I915_READ(PCH_DPLL_SEL); |
ee7b9f93 JB |
3029 | switch (pipe) { |
3030 | default: | |
3031 | case 0: | |
3032 | temp |= TRANSA_DPLL_ENABLE; | |
3033 | sel = TRANSA_DPLLB_SEL; | |
3034 | break; | |
3035 | case 1: | |
3036 | temp |= TRANSB_DPLL_ENABLE; | |
3037 | sel = TRANSB_DPLLB_SEL; | |
3038 | break; | |
3039 | case 2: | |
3040 | temp |= TRANSC_DPLL_ENABLE; | |
3041 | sel = TRANSC_DPLLB_SEL; | |
3042 | break; | |
d64311ab | 3043 | } |
ee7b9f93 JB |
3044 | if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B) |
3045 | temp |= sel; | |
3046 | else | |
3047 | temp &= ~sel; | |
c98e9dcf | 3048 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 3049 | } |
5eddb70b | 3050 | |
d9b6cb56 JB |
3051 | /* set transcoder timing, panel must allow it */ |
3052 | assert_panel_unlocked(dev_priv, pipe); | |
5eddb70b CW |
3053 | I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe))); |
3054 | I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe))); | |
3055 | I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe))); | |
8db9d77b | 3056 | |
5eddb70b CW |
3057 | I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe))); |
3058 | I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe))); | |
3059 | I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe))); | |
0529a0d9 | 3060 | I915_WRITE(TRANS_VSYNCSHIFT(pipe), I915_READ(VSYNCSHIFT(pipe))); |
8db9d77b | 3061 | |
f57e1e3a ED |
3062 | if (!IS_HASWELL(dev)) |
3063 | intel_fdi_normal_train(crtc); | |
5e84e1a4 | 3064 | |
c98e9dcf JB |
3065 | /* For PCH DP, enable TRANS_DP_CTL */ |
3066 | if (HAS_PCH_CPT(dev) && | |
417e822d KP |
3067 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
3068 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
9325c9f0 | 3069 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) >> 5; |
5eddb70b CW |
3070 | reg = TRANS_DP_CTL(pipe); |
3071 | temp = I915_READ(reg); | |
3072 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
3073 | TRANS_DP_SYNC_MASK | |
3074 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
3075 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
3076 | TRANS_DP_ENH_FRAMING); | |
9325c9f0 | 3077 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
3078 | |
3079 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 3080 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 3081 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 3082 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
3083 | |
3084 | switch (intel_trans_dp_port_sel(crtc)) { | |
3085 | case PCH_DP_B: | |
5eddb70b | 3086 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
3087 | break; |
3088 | case PCH_DP_C: | |
5eddb70b | 3089 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
3090 | break; |
3091 | case PCH_DP_D: | |
5eddb70b | 3092 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
3093 | break; |
3094 | default: | |
3095 | DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); | |
5eddb70b | 3096 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf | 3097 | break; |
32f9d658 | 3098 | } |
2c07245f | 3099 | |
5eddb70b | 3100 | I915_WRITE(reg, temp); |
6be4a607 | 3101 | } |
b52eb4dc | 3102 | |
040484af | 3103 | intel_enable_transcoder(dev_priv, pipe); |
f67a559d JB |
3104 | } |
3105 | ||
ee7b9f93 JB |
3106 | static void intel_put_pch_pll(struct intel_crtc *intel_crtc) |
3107 | { | |
3108 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
3109 | ||
3110 | if (pll == NULL) | |
3111 | return; | |
3112 | ||
3113 | if (pll->refcount == 0) { | |
3114 | WARN(1, "bad PCH PLL refcount\n"); | |
3115 | return; | |
3116 | } | |
3117 | ||
3118 | --pll->refcount; | |
3119 | intel_crtc->pch_pll = NULL; | |
3120 | } | |
3121 | ||
3122 | static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp) | |
3123 | { | |
3124 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; | |
3125 | struct intel_pch_pll *pll; | |
3126 | int i; | |
3127 | ||
3128 | pll = intel_crtc->pch_pll; | |
3129 | if (pll) { | |
3130 | DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n", | |
3131 | intel_crtc->base.base.id, pll->pll_reg); | |
3132 | goto prepare; | |
3133 | } | |
3134 | ||
98b6bd99 DV |
3135 | if (HAS_PCH_IBX(dev_priv->dev)) { |
3136 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
3137 | i = intel_crtc->pipe; | |
3138 | pll = &dev_priv->pch_plls[i]; | |
3139 | ||
3140 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n", | |
3141 | intel_crtc->base.base.id, pll->pll_reg); | |
3142 | ||
3143 | goto found; | |
3144 | } | |
3145 | ||
ee7b9f93 JB |
3146 | for (i = 0; i < dev_priv->num_pch_pll; i++) { |
3147 | pll = &dev_priv->pch_plls[i]; | |
3148 | ||
3149 | /* Only want to check enabled timings first */ | |
3150 | if (pll->refcount == 0) | |
3151 | continue; | |
3152 | ||
3153 | if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) && | |
3154 | fp == I915_READ(pll->fp0_reg)) { | |
3155 | DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n", | |
3156 | intel_crtc->base.base.id, | |
3157 | pll->pll_reg, pll->refcount, pll->active); | |
3158 | ||
3159 | goto found; | |
3160 | } | |
3161 | } | |
3162 | ||
3163 | /* Ok no matching timings, maybe there's a free one? */ | |
3164 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
3165 | pll = &dev_priv->pch_plls[i]; | |
3166 | if (pll->refcount == 0) { | |
3167 | DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n", | |
3168 | intel_crtc->base.base.id, pll->pll_reg); | |
3169 | goto found; | |
3170 | } | |
3171 | } | |
3172 | ||
3173 | return NULL; | |
3174 | ||
3175 | found: | |
3176 | intel_crtc->pch_pll = pll; | |
3177 | pll->refcount++; | |
3178 | DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i, intel_crtc->pipe); | |
3179 | prepare: /* separate function? */ | |
3180 | DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg); | |
ee7b9f93 | 3181 | |
e04c7350 CW |
3182 | /* Wait for the clocks to stabilize before rewriting the regs */ |
3183 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3184 | POSTING_READ(pll->pll_reg); |
3185 | udelay(150); | |
e04c7350 CW |
3186 | |
3187 | I915_WRITE(pll->fp0_reg, fp); | |
3188 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3189 | pll->on = false; |
3190 | return pll; | |
3191 | } | |
3192 | ||
d4270e57 JB |
3193 | void intel_cpt_verify_modeset(struct drm_device *dev, int pipe) |
3194 | { | |
3195 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3196 | int dslreg = PIPEDSL(pipe), tc2reg = TRANS_CHICKEN2(pipe); | |
3197 | u32 temp; | |
3198 | ||
3199 | temp = I915_READ(dslreg); | |
3200 | udelay(500); | |
3201 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
3202 | /* Without this, mode sets may fail silently on FDI */ | |
3203 | I915_WRITE(tc2reg, TRANS_AUTOTRAIN_GEN_STALL_DIS); | |
3204 | udelay(250); | |
3205 | I915_WRITE(tc2reg, 0); | |
3206 | if (wait_for(I915_READ(dslreg) != temp, 5)) | |
3207 | DRM_ERROR("mode set failed: pipe %d stuck\n", pipe); | |
3208 | } | |
3209 | } | |
3210 | ||
f67a559d JB |
3211 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
3212 | { | |
3213 | struct drm_device *dev = crtc->dev; | |
3214 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3215 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3216 | struct intel_encoder *encoder; |
f67a559d JB |
3217 | int pipe = intel_crtc->pipe; |
3218 | int plane = intel_crtc->plane; | |
3219 | u32 temp; | |
3220 | bool is_pch_port; | |
3221 | ||
08a48469 DV |
3222 | WARN_ON(!crtc->enabled); |
3223 | ||
ef9c3aee DV |
3224 | /* XXX: For compatability with the crtc helper code, call the encoder's |
3225 | * enable function unconditionally for now. */ | |
f67a559d | 3226 | if (intel_crtc->active) |
ef9c3aee | 3227 | goto encoders; |
f67a559d JB |
3228 | |
3229 | intel_crtc->active = true; | |
3230 | intel_update_watermarks(dev); | |
3231 | ||
3232 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3233 | temp = I915_READ(PCH_LVDS); | |
3234 | if ((temp & LVDS_PORT_EN) == 0) | |
3235 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); | |
3236 | } | |
3237 | ||
3238 | is_pch_port = intel_crtc_driving_pch(crtc); | |
3239 | ||
3240 | if (is_pch_port) | |
88cefb6c | 3241 | ironlake_fdi_pll_enable(intel_crtc); |
f67a559d JB |
3242 | else |
3243 | ironlake_fdi_disable(crtc); | |
3244 | ||
3245 | /* Enable panel fitting for LVDS */ | |
3246 | if (dev_priv->pch_pf_size && | |
3247 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) { | |
3248 | /* Force use of hard-coded filter coefficients | |
3249 | * as some pre-programmed values are broken, | |
3250 | * e.g. x201. | |
3251 | */ | |
9db4a9c7 JB |
3252 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); |
3253 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); | |
3254 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); | |
f67a559d JB |
3255 | } |
3256 | ||
9c54c0dd JB |
3257 | /* |
3258 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3259 | * clocks enabled | |
3260 | */ | |
3261 | intel_crtc_load_lut(crtc); | |
3262 | ||
f67a559d JB |
3263 | intel_enable_pipe(dev_priv, pipe, is_pch_port); |
3264 | intel_enable_plane(dev_priv, plane, pipe); | |
3265 | ||
3266 | if (is_pch_port) | |
3267 | ironlake_pch_enable(crtc); | |
c98e9dcf | 3268 | |
d1ebd816 | 3269 | mutex_lock(&dev->struct_mutex); |
bed4a673 | 3270 | intel_update_fbc(dev); |
d1ebd816 BW |
3271 | mutex_unlock(&dev->struct_mutex); |
3272 | ||
6b383a7f | 3273 | intel_crtc_update_cursor(crtc, true); |
ef9c3aee DV |
3274 | |
3275 | encoders: | |
fa5c73b1 DV |
3276 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3277 | encoder->enable(encoder); | |
61b77ddd DV |
3278 | |
3279 | if (HAS_PCH_CPT(dev)) | |
3280 | intel_cpt_verify_modeset(dev, intel_crtc->pipe); | |
6be4a607 JB |
3281 | } |
3282 | ||
3283 | static void ironlake_crtc_disable(struct drm_crtc *crtc) | |
3284 | { | |
3285 | struct drm_device *dev = crtc->dev; | |
3286 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3287 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3288 | struct intel_encoder *encoder; |
6be4a607 JB |
3289 | int pipe = intel_crtc->pipe; |
3290 | int plane = intel_crtc->plane; | |
5eddb70b | 3291 | u32 reg, temp; |
b52eb4dc | 3292 | |
ef9c3aee DV |
3293 | /* XXX: For compatability with the crtc helper code, call the encoder's |
3294 | * disable function unconditionally for now. */ | |
fa5c73b1 DV |
3295 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3296 | encoder->disable(encoder); | |
ef9c3aee | 3297 | |
f7abfe8b CW |
3298 | if (!intel_crtc->active) |
3299 | return; | |
3300 | ||
e6c3a2a6 | 3301 | intel_crtc_wait_for_pending_flips(crtc); |
6be4a607 | 3302 | drm_vblank_off(dev, pipe); |
6b383a7f | 3303 | intel_crtc_update_cursor(crtc, false); |
5eddb70b | 3304 | |
b24e7179 | 3305 | intel_disable_plane(dev_priv, plane, pipe); |
913d8d11 | 3306 | |
973d04f9 CW |
3307 | if (dev_priv->cfb_plane == plane) |
3308 | intel_disable_fbc(dev); | |
2c07245f | 3309 | |
b24e7179 | 3310 | intel_disable_pipe(dev_priv, pipe); |
32f9d658 | 3311 | |
6be4a607 | 3312 | /* Disable PF */ |
9db4a9c7 JB |
3313 | I915_WRITE(PF_CTL(pipe), 0); |
3314 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
2c07245f | 3315 | |
0fc932b8 | 3316 | ironlake_fdi_disable(crtc); |
2c07245f | 3317 | |
47a05eca JB |
3318 | /* This is a horrible layering violation; we should be doing this in |
3319 | * the connector/encoder ->prepare instead, but we don't always have | |
3320 | * enough information there about the config to know whether it will | |
3321 | * actually be necessary or just cause undesired flicker. | |
3322 | */ | |
3323 | intel_disable_pch_ports(dev_priv, pipe); | |
249c0e64 | 3324 | |
040484af | 3325 | intel_disable_transcoder(dev_priv, pipe); |
913d8d11 | 3326 | |
6be4a607 JB |
3327 | if (HAS_PCH_CPT(dev)) { |
3328 | /* disable TRANS_DP_CTL */ | |
5eddb70b CW |
3329 | reg = TRANS_DP_CTL(pipe); |
3330 | temp = I915_READ(reg); | |
3331 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); | |
cb3543c6 | 3332 | temp |= TRANS_DP_PORT_SEL_NONE; |
5eddb70b | 3333 | I915_WRITE(reg, temp); |
6be4a607 JB |
3334 | |
3335 | /* disable DPLL_SEL */ | |
3336 | temp = I915_READ(PCH_DPLL_SEL); | |
9db4a9c7 JB |
3337 | switch (pipe) { |
3338 | case 0: | |
d64311ab | 3339 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
9db4a9c7 JB |
3340 | break; |
3341 | case 1: | |
6be4a607 | 3342 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
9db4a9c7 JB |
3343 | break; |
3344 | case 2: | |
4b645f14 | 3345 | /* C shares PLL A or B */ |
d64311ab | 3346 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
9db4a9c7 JB |
3347 | break; |
3348 | default: | |
3349 | BUG(); /* wtf */ | |
3350 | } | |
6be4a607 | 3351 | I915_WRITE(PCH_DPLL_SEL, temp); |
6be4a607 | 3352 | } |
e3421a18 | 3353 | |
6be4a607 | 3354 | /* disable PCH DPLL */ |
ee7b9f93 | 3355 | intel_disable_pch_pll(intel_crtc); |
8db9d77b | 3356 | |
88cefb6c | 3357 | ironlake_fdi_pll_disable(intel_crtc); |
6b383a7f | 3358 | |
f7abfe8b | 3359 | intel_crtc->active = false; |
6b383a7f | 3360 | intel_update_watermarks(dev); |
d1ebd816 BW |
3361 | |
3362 | mutex_lock(&dev->struct_mutex); | |
6b383a7f | 3363 | intel_update_fbc(dev); |
d1ebd816 | 3364 | mutex_unlock(&dev->struct_mutex); |
6be4a607 | 3365 | } |
1b3c7a47 | 3366 | |
ee7b9f93 JB |
3367 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
3368 | { | |
3369 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3370 | intel_put_pch_pll(intel_crtc); | |
3371 | } | |
3372 | ||
02e792fb DV |
3373 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
3374 | { | |
02e792fb | 3375 | if (!enable && intel_crtc->overlay) { |
23f09ce3 | 3376 | struct drm_device *dev = intel_crtc->base.dev; |
ce453d81 | 3377 | struct drm_i915_private *dev_priv = dev->dev_private; |
03f77ea5 | 3378 | |
23f09ce3 | 3379 | mutex_lock(&dev->struct_mutex); |
ce453d81 CW |
3380 | dev_priv->mm.interruptible = false; |
3381 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
3382 | dev_priv->mm.interruptible = true; | |
23f09ce3 | 3383 | mutex_unlock(&dev->struct_mutex); |
02e792fb | 3384 | } |
02e792fb | 3385 | |
5dcdbcb0 CW |
3386 | /* Let userspace switch the overlay on again. In most cases userspace |
3387 | * has to recompute where to put it anyway. | |
3388 | */ | |
02e792fb DV |
3389 | } |
3390 | ||
0b8765c6 | 3391 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
3392 | { |
3393 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
3394 | struct drm_i915_private *dev_priv = dev->dev_private; |
3395 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3396 | struct intel_encoder *encoder; |
79e53945 | 3397 | int pipe = intel_crtc->pipe; |
80824003 | 3398 | int plane = intel_crtc->plane; |
79e53945 | 3399 | |
08a48469 DV |
3400 | WARN_ON(!crtc->enabled); |
3401 | ||
ef9c3aee DV |
3402 | /* XXX: For compatability with the crtc helper code, call the encoder's |
3403 | * enable function unconditionally for now. */ | |
f7abfe8b | 3404 | if (intel_crtc->active) |
ef9c3aee | 3405 | goto encoders; |
f7abfe8b CW |
3406 | |
3407 | intel_crtc->active = true; | |
6b383a7f CW |
3408 | intel_update_watermarks(dev); |
3409 | ||
63d7bbe9 | 3410 | intel_enable_pll(dev_priv, pipe); |
040484af | 3411 | intel_enable_pipe(dev_priv, pipe, false); |
b24e7179 | 3412 | intel_enable_plane(dev_priv, plane, pipe); |
79e53945 | 3413 | |
0b8765c6 | 3414 | intel_crtc_load_lut(crtc); |
bed4a673 | 3415 | intel_update_fbc(dev); |
79e53945 | 3416 | |
0b8765c6 JB |
3417 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
3418 | intel_crtc_dpms_overlay(intel_crtc, true); | |
6b383a7f | 3419 | intel_crtc_update_cursor(crtc, true); |
ef9c3aee DV |
3420 | |
3421 | encoders: | |
fa5c73b1 DV |
3422 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3423 | encoder->enable(encoder); | |
0b8765c6 | 3424 | } |
79e53945 | 3425 | |
0b8765c6 JB |
3426 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
3427 | { | |
3428 | struct drm_device *dev = crtc->dev; | |
3429 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3430 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3431 | struct intel_encoder *encoder; |
0b8765c6 JB |
3432 | int pipe = intel_crtc->pipe; |
3433 | int plane = intel_crtc->plane; | |
b690e96c | 3434 | |
ef9c3aee DV |
3435 | /* XXX: For compatability with the crtc helper code, call the encoder's |
3436 | * disable function unconditionally for now. */ | |
fa5c73b1 DV |
3437 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3438 | encoder->disable(encoder); | |
ef9c3aee | 3439 | |
f7abfe8b CW |
3440 | if (!intel_crtc->active) |
3441 | return; | |
3442 | ||
0b8765c6 | 3443 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
e6c3a2a6 CW |
3444 | intel_crtc_wait_for_pending_flips(crtc); |
3445 | drm_vblank_off(dev, pipe); | |
0b8765c6 | 3446 | intel_crtc_dpms_overlay(intel_crtc, false); |
6b383a7f | 3447 | intel_crtc_update_cursor(crtc, false); |
0b8765c6 | 3448 | |
973d04f9 CW |
3449 | if (dev_priv->cfb_plane == plane) |
3450 | intel_disable_fbc(dev); | |
79e53945 | 3451 | |
b24e7179 | 3452 | intel_disable_plane(dev_priv, plane, pipe); |
b24e7179 | 3453 | intel_disable_pipe(dev_priv, pipe); |
63d7bbe9 | 3454 | intel_disable_pll(dev_priv, pipe); |
0b8765c6 | 3455 | |
f7abfe8b | 3456 | intel_crtc->active = false; |
6b383a7f CW |
3457 | intel_update_fbc(dev); |
3458 | intel_update_watermarks(dev); | |
0b8765c6 JB |
3459 | } |
3460 | ||
ee7b9f93 JB |
3461 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
3462 | { | |
3463 | } | |
3464 | ||
976f8a20 DV |
3465 | static void intel_crtc_update_sarea(struct drm_crtc *crtc, |
3466 | bool enabled) | |
2c07245f ZW |
3467 | { |
3468 | struct drm_device *dev = crtc->dev; | |
3469 | struct drm_i915_master_private *master_priv; | |
3470 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3471 | int pipe = intel_crtc->pipe; | |
79e53945 JB |
3472 | |
3473 | if (!dev->primary->master) | |
3474 | return; | |
3475 | ||
3476 | master_priv = dev->primary->master->driver_priv; | |
3477 | if (!master_priv->sarea_priv) | |
3478 | return; | |
3479 | ||
79e53945 JB |
3480 | switch (pipe) { |
3481 | case 0: | |
3482 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
3483 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
3484 | break; | |
3485 | case 1: | |
3486 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
3487 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
3488 | break; | |
3489 | default: | |
9db4a9c7 | 3490 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
79e53945 JB |
3491 | break; |
3492 | } | |
79e53945 JB |
3493 | } |
3494 | ||
976f8a20 DV |
3495 | /** |
3496 | * Sets the power management mode of the pipe and plane. | |
3497 | */ | |
3498 | void intel_crtc_update_dpms(struct drm_crtc *crtc) | |
3499 | { | |
3500 | struct drm_device *dev = crtc->dev; | |
3501 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3502 | struct intel_encoder *intel_encoder; | |
3503 | bool enable = false; | |
3504 | ||
3505 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) | |
3506 | enable |= intel_encoder->connectors_active; | |
3507 | ||
3508 | if (enable) | |
3509 | dev_priv->display.crtc_enable(crtc); | |
3510 | else | |
3511 | dev_priv->display.crtc_disable(crtc); | |
3512 | ||
3513 | intel_crtc_update_sarea(crtc, enable); | |
3514 | } | |
3515 | ||
3516 | static void intel_crtc_noop(struct drm_crtc *crtc) | |
3517 | { | |
3518 | } | |
3519 | ||
cdd59983 CW |
3520 | static void intel_crtc_disable(struct drm_crtc *crtc) |
3521 | { | |
cdd59983 | 3522 | struct drm_device *dev = crtc->dev; |
976f8a20 | 3523 | struct drm_connector *connector; |
ee7b9f93 | 3524 | struct drm_i915_private *dev_priv = dev->dev_private; |
cdd59983 | 3525 | |
976f8a20 DV |
3526 | /* crtc should still be enabled when we disable it. */ |
3527 | WARN_ON(!crtc->enabled); | |
3528 | ||
3529 | dev_priv->display.crtc_disable(crtc); | |
3530 | intel_crtc_update_sarea(crtc, false); | |
ee7b9f93 JB |
3531 | dev_priv->display.off(crtc); |
3532 | ||
931872fc CW |
3533 | assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); |
3534 | assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); | |
cdd59983 CW |
3535 | |
3536 | if (crtc->fb) { | |
3537 | mutex_lock(&dev->struct_mutex); | |
1690e1eb | 3538 | intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
cdd59983 | 3539 | mutex_unlock(&dev->struct_mutex); |
976f8a20 DV |
3540 | crtc->fb = NULL; |
3541 | } | |
3542 | ||
3543 | /* Update computed state. */ | |
3544 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
3545 | if (!connector->encoder || !connector->encoder->crtc) | |
3546 | continue; | |
3547 | ||
3548 | if (connector->encoder->crtc != crtc) | |
3549 | continue; | |
3550 | ||
3551 | connector->dpms = DRM_MODE_DPMS_OFF; | |
3552 | to_intel_encoder(connector->encoder)->connectors_active = false; | |
cdd59983 CW |
3553 | } |
3554 | } | |
3555 | ||
1f703855 | 3556 | void intel_encoder_noop(struct drm_encoder *encoder) |
5ab432ef | 3557 | { |
5ab432ef DV |
3558 | } |
3559 | ||
ea5b213a CW |
3560 | void intel_encoder_destroy(struct drm_encoder *encoder) |
3561 | { | |
4ef69c7a | 3562 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 3563 | |
ea5b213a CW |
3564 | drm_encoder_cleanup(encoder); |
3565 | kfree(intel_encoder); | |
3566 | } | |
3567 | ||
5ab432ef DV |
3568 | /* Simple dpms helper for encodres with just one connector, no cloning and only |
3569 | * one kind of off state. It clamps all !ON modes to fully OFF and changes the | |
3570 | * state of the entire output pipe. */ | |
3571 | void intel_encoder_dpms(struct intel_encoder *encoder, int mode) | |
3572 | { | |
3573 | if (mode == DRM_MODE_DPMS_ON) { | |
3574 | encoder->connectors_active = true; | |
3575 | ||
b2cabb0e | 3576 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef DV |
3577 | } else { |
3578 | encoder->connectors_active = false; | |
3579 | ||
b2cabb0e | 3580 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef DV |
3581 | } |
3582 | } | |
3583 | ||
0a91ca29 DV |
3584 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
3585 | * internal consistency). */ | |
3586 | void intel_connector_check_state(struct intel_connector *connector) | |
3587 | { | |
3588 | if (connector->get_hw_state(connector)) { | |
3589 | struct intel_encoder *encoder = connector->encoder; | |
3590 | struct drm_crtc *crtc; | |
3591 | bool encoder_enabled; | |
3592 | enum pipe pipe; | |
3593 | ||
3594 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
3595 | connector->base.base.id, | |
3596 | drm_get_connector_name(&connector->base)); | |
3597 | ||
3598 | WARN(connector->base.dpms == DRM_MODE_DPMS_OFF, | |
3599 | "wrong connector dpms state\n"); | |
3600 | WARN(connector->base.encoder != &encoder->base, | |
3601 | "active connector not linked to encoder\n"); | |
3602 | WARN(!encoder->connectors_active, | |
3603 | "encoder->connectors_active not set\n"); | |
3604 | ||
3605 | encoder_enabled = encoder->get_hw_state(encoder, &pipe); | |
3606 | WARN(!encoder_enabled, "encoder not enabled\n"); | |
3607 | if (WARN_ON(!encoder->base.crtc)) | |
3608 | return; | |
3609 | ||
3610 | crtc = encoder->base.crtc; | |
3611 | ||
3612 | WARN(!crtc->enabled, "crtc not enabled\n"); | |
3613 | WARN(!to_intel_crtc(crtc)->active, "crtc not active\n"); | |
3614 | WARN(pipe != to_intel_crtc(crtc)->pipe, | |
3615 | "encoder active on the wrong pipe\n"); | |
3616 | } | |
3617 | } | |
3618 | ||
5ab432ef DV |
3619 | /* Even simpler default implementation, if there's really no special case to |
3620 | * consider. */ | |
3621 | void intel_connector_dpms(struct drm_connector *connector, int mode) | |
3622 | { | |
3623 | struct intel_encoder *encoder = intel_attached_encoder(connector); | |
3624 | ||
3625 | /* All the simple cases only support two dpms states. */ | |
3626 | if (mode != DRM_MODE_DPMS_ON) | |
3627 | mode = DRM_MODE_DPMS_OFF; | |
3628 | ||
3629 | if (mode == connector->dpms) | |
3630 | return; | |
3631 | ||
3632 | connector->dpms = mode; | |
3633 | ||
3634 | /* Only need to change hw state when actually enabled */ | |
3635 | if (encoder->base.crtc) | |
3636 | intel_encoder_dpms(encoder, mode); | |
3637 | else | |
3638 | encoder->connectors_active = false; | |
0a91ca29 DV |
3639 | |
3640 | intel_connector_check_state(to_intel_connector(connector)); | |
5ab432ef DV |
3641 | } |
3642 | ||
f0947c37 DV |
3643 | /* Simple connector->get_hw_state implementation for encoders that support only |
3644 | * one connector and no cloning and hence the encoder state determines the state | |
3645 | * of the connector. */ | |
3646 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
3647 | { | |
24929352 | 3648 | enum pipe pipe = 0; |
f0947c37 DV |
3649 | struct intel_encoder *encoder = connector->encoder; |
3650 | ||
3651 | return encoder->get_hw_state(encoder, &pipe); | |
3652 | } | |
3653 | ||
79e53945 | 3654 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
35313cde | 3655 | const struct drm_display_mode *mode, |
79e53945 JB |
3656 | struct drm_display_mode *adjusted_mode) |
3657 | { | |
2c07245f | 3658 | struct drm_device *dev = crtc->dev; |
89749350 | 3659 | |
bad720ff | 3660 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f | 3661 | /* FDI link clock is fixed at 2.7G */ |
2377b741 JB |
3662 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
3663 | return false; | |
2c07245f | 3664 | } |
89749350 | 3665 | |
f9bef081 DV |
3666 | /* All interlaced capable intel hw wants timings in frames. Note though |
3667 | * that intel_lvds_mode_fixup does some funny tricks with the crtc | |
3668 | * timings, so we need to be careful not to clobber these.*/ | |
3669 | if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET)) | |
3670 | drm_mode_set_crtcinfo(adjusted_mode, 0); | |
89749350 | 3671 | |
79e53945 JB |
3672 | return true; |
3673 | } | |
3674 | ||
25eb05fc JB |
3675 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
3676 | { | |
3677 | return 400000; /* FIXME */ | |
3678 | } | |
3679 | ||
e70236a8 JB |
3680 | static int i945_get_display_clock_speed(struct drm_device *dev) |
3681 | { | |
3682 | return 400000; | |
3683 | } | |
79e53945 | 3684 | |
e70236a8 | 3685 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 3686 | { |
e70236a8 JB |
3687 | return 333000; |
3688 | } | |
79e53945 | 3689 | |
e70236a8 JB |
3690 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
3691 | { | |
3692 | return 200000; | |
3693 | } | |
79e53945 | 3694 | |
e70236a8 JB |
3695 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
3696 | { | |
3697 | u16 gcfgc = 0; | |
79e53945 | 3698 | |
e70236a8 JB |
3699 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
3700 | ||
3701 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
3702 | return 133000; | |
3703 | else { | |
3704 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
3705 | case GC_DISPLAY_CLOCK_333_MHZ: | |
3706 | return 333000; | |
3707 | default: | |
3708 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
3709 | return 190000; | |
79e53945 | 3710 | } |
e70236a8 JB |
3711 | } |
3712 | } | |
3713 | ||
3714 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
3715 | { | |
3716 | return 266000; | |
3717 | } | |
3718 | ||
3719 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
3720 | { | |
3721 | u16 hpllcc = 0; | |
3722 | /* Assume that the hardware is in the high speed state. This | |
3723 | * should be the default. | |
3724 | */ | |
3725 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
3726 | case GC_CLOCK_133_200: | |
3727 | case GC_CLOCK_100_200: | |
3728 | return 200000; | |
3729 | case GC_CLOCK_166_250: | |
3730 | return 250000; | |
3731 | case GC_CLOCK_100_133: | |
79e53945 | 3732 | return 133000; |
e70236a8 | 3733 | } |
79e53945 | 3734 | |
e70236a8 JB |
3735 | /* Shouldn't happen */ |
3736 | return 0; | |
3737 | } | |
79e53945 | 3738 | |
e70236a8 JB |
3739 | static int i830_get_display_clock_speed(struct drm_device *dev) |
3740 | { | |
3741 | return 133000; | |
79e53945 JB |
3742 | } |
3743 | ||
2c07245f ZW |
3744 | struct fdi_m_n { |
3745 | u32 tu; | |
3746 | u32 gmch_m; | |
3747 | u32 gmch_n; | |
3748 | u32 link_m; | |
3749 | u32 link_n; | |
3750 | }; | |
3751 | ||
3752 | static void | |
3753 | fdi_reduce_ratio(u32 *num, u32 *den) | |
3754 | { | |
3755 | while (*num > 0xffffff || *den > 0xffffff) { | |
3756 | *num >>= 1; | |
3757 | *den >>= 1; | |
3758 | } | |
3759 | } | |
3760 | ||
2c07245f | 3761 | static void |
f2b115e6 AJ |
3762 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
3763 | int link_clock, struct fdi_m_n *m_n) | |
2c07245f | 3764 | { |
2c07245f ZW |
3765 | m_n->tu = 64; /* default size */ |
3766 | ||
22ed1113 CW |
3767 | /* BUG_ON(pixel_clock > INT_MAX / 36); */ |
3768 | m_n->gmch_m = bits_per_pixel * pixel_clock; | |
3769 | m_n->gmch_n = link_clock * nlanes * 8; | |
2c07245f ZW |
3770 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); |
3771 | ||
22ed1113 CW |
3772 | m_n->link_m = pixel_clock; |
3773 | m_n->link_n = link_clock; | |
2c07245f ZW |
3774 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); |
3775 | } | |
3776 | ||
a7615030 CW |
3777 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
3778 | { | |
72bbe58c KP |
3779 | if (i915_panel_use_ssc >= 0) |
3780 | return i915_panel_use_ssc != 0; | |
3781 | return dev_priv->lvds_use_ssc | |
435793df | 3782 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
3783 | } |
3784 | ||
5a354204 JB |
3785 | /** |
3786 | * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send | |
3787 | * @crtc: CRTC structure | |
3b5c78a3 | 3788 | * @mode: requested mode |
5a354204 JB |
3789 | * |
3790 | * A pipe may be connected to one or more outputs. Based on the depth of the | |
3791 | * attached framebuffer, choose a good color depth to use on the pipe. | |
3792 | * | |
3793 | * If possible, match the pipe depth to the fb depth. In some cases, this | |
3794 | * isn't ideal, because the connected output supports a lesser or restricted | |
3795 | * set of depths. Resolve that here: | |
3796 | * LVDS typically supports only 6bpc, so clamp down in that case | |
3797 | * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc | |
3798 | * Displays may support a restricted set as well, check EDID and clamp as | |
3799 | * appropriate. | |
3b5c78a3 | 3800 | * DP may want to dither down to 6bpc to fit larger modes |
5a354204 JB |
3801 | * |
3802 | * RETURNS: | |
3803 | * Dithering requirement (i.e. false if display bpc and pipe bpc match, | |
3804 | * true if they don't match). | |
3805 | */ | |
3806 | static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, | |
94352cf9 | 3807 | struct drm_framebuffer *fb, |
3b5c78a3 AJ |
3808 | unsigned int *pipe_bpp, |
3809 | struct drm_display_mode *mode) | |
5a354204 JB |
3810 | { |
3811 | struct drm_device *dev = crtc->dev; | |
3812 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5a354204 | 3813 | struct drm_connector *connector; |
6c2b7c12 | 3814 | struct intel_encoder *intel_encoder; |
5a354204 JB |
3815 | unsigned int display_bpc = UINT_MAX, bpc; |
3816 | ||
3817 | /* Walk the encoders & connectors on this crtc, get min bpc */ | |
6c2b7c12 | 3818 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5a354204 JB |
3819 | |
3820 | if (intel_encoder->type == INTEL_OUTPUT_LVDS) { | |
3821 | unsigned int lvds_bpc; | |
3822 | ||
3823 | if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == | |
3824 | LVDS_A3_POWER_UP) | |
3825 | lvds_bpc = 8; | |
3826 | else | |
3827 | lvds_bpc = 6; | |
3828 | ||
3829 | if (lvds_bpc < display_bpc) { | |
82820490 | 3830 | DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc, lvds_bpc); |
5a354204 JB |
3831 | display_bpc = lvds_bpc; |
3832 | } | |
3833 | continue; | |
3834 | } | |
3835 | ||
5a354204 JB |
3836 | /* Not one of the known troublemakers, check the EDID */ |
3837 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
3838 | head) { | |
6c2b7c12 | 3839 | if (connector->encoder != &intel_encoder->base) |
5a354204 JB |
3840 | continue; |
3841 | ||
62ac41a6 JB |
3842 | /* Don't use an invalid EDID bpc value */ |
3843 | if (connector->display_info.bpc && | |
3844 | connector->display_info.bpc < display_bpc) { | |
82820490 | 3845 | DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc, connector->display_info.bpc); |
5a354204 JB |
3846 | display_bpc = connector->display_info.bpc; |
3847 | } | |
3848 | } | |
3849 | ||
3850 | /* | |
3851 | * HDMI is either 12 or 8, so if the display lets 10bpc sneak | |
3852 | * through, clamp it down. (Note: >12bpc will be caught below.) | |
3853 | */ | |
3854 | if (intel_encoder->type == INTEL_OUTPUT_HDMI) { | |
3855 | if (display_bpc > 8 && display_bpc < 12) { | |
82820490 | 3856 | DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n"); |
5a354204 JB |
3857 | display_bpc = 12; |
3858 | } else { | |
82820490 | 3859 | DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n"); |
5a354204 JB |
3860 | display_bpc = 8; |
3861 | } | |
3862 | } | |
3863 | } | |
3864 | ||
3b5c78a3 AJ |
3865 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
3866 | DRM_DEBUG_KMS("Dithering DP to 6bpc\n"); | |
3867 | display_bpc = 6; | |
3868 | } | |
3869 | ||
5a354204 JB |
3870 | /* |
3871 | * We could just drive the pipe at the highest bpc all the time and | |
3872 | * enable dithering as needed, but that costs bandwidth. So choose | |
3873 | * the minimum value that expresses the full color range of the fb but | |
3874 | * also stays within the max display bpc discovered above. | |
3875 | */ | |
3876 | ||
94352cf9 | 3877 | switch (fb->depth) { |
5a354204 JB |
3878 | case 8: |
3879 | bpc = 8; /* since we go through a colormap */ | |
3880 | break; | |
3881 | case 15: | |
3882 | case 16: | |
3883 | bpc = 6; /* min is 18bpp */ | |
3884 | break; | |
3885 | case 24: | |
578393cd | 3886 | bpc = 8; |
5a354204 JB |
3887 | break; |
3888 | case 30: | |
578393cd | 3889 | bpc = 10; |
5a354204 JB |
3890 | break; |
3891 | case 48: | |
578393cd | 3892 | bpc = 12; |
5a354204 JB |
3893 | break; |
3894 | default: | |
3895 | DRM_DEBUG("unsupported depth, assuming 24 bits\n"); | |
3896 | bpc = min((unsigned int)8, display_bpc); | |
3897 | break; | |
3898 | } | |
3899 | ||
578393cd KP |
3900 | display_bpc = min(display_bpc, bpc); |
3901 | ||
82820490 AJ |
3902 | DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n", |
3903 | bpc, display_bpc); | |
5a354204 | 3904 | |
578393cd | 3905 | *pipe_bpp = display_bpc * 3; |
5a354204 JB |
3906 | |
3907 | return display_bpc != bpc; | |
3908 | } | |
3909 | ||
a0c4da24 JB |
3910 | static int vlv_get_refclk(struct drm_crtc *crtc) |
3911 | { | |
3912 | struct drm_device *dev = crtc->dev; | |
3913 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3914 | int refclk = 27000; /* for DP & HDMI */ | |
3915 | ||
3916 | return 100000; /* only one validated so far */ | |
3917 | ||
3918 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
3919 | refclk = 96000; | |
3920 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3921 | if (intel_panel_use_ssc(dev_priv)) | |
3922 | refclk = 100000; | |
3923 | else | |
3924 | refclk = 96000; | |
3925 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { | |
3926 | refclk = 100000; | |
3927 | } | |
3928 | ||
3929 | return refclk; | |
3930 | } | |
3931 | ||
c65d77d8 JB |
3932 | static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors) |
3933 | { | |
3934 | struct drm_device *dev = crtc->dev; | |
3935 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3936 | int refclk; | |
3937 | ||
a0c4da24 JB |
3938 | if (IS_VALLEYVIEW(dev)) { |
3939 | refclk = vlv_get_refclk(crtc); | |
3940 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
c65d77d8 JB |
3941 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
3942 | refclk = dev_priv->lvds_ssc_freq * 1000; | |
3943 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
3944 | refclk / 1000); | |
3945 | } else if (!IS_GEN2(dev)) { | |
3946 | refclk = 96000; | |
3947 | } else { | |
3948 | refclk = 48000; | |
3949 | } | |
3950 | ||
3951 | return refclk; | |
3952 | } | |
3953 | ||
3954 | static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode *adjusted_mode, | |
3955 | intel_clock_t *clock) | |
3956 | { | |
3957 | /* SDVO TV has fixed PLL values depend on its clock range, | |
3958 | this mirrors vbios setting. */ | |
3959 | if (adjusted_mode->clock >= 100000 | |
3960 | && adjusted_mode->clock < 140500) { | |
3961 | clock->p1 = 2; | |
3962 | clock->p2 = 10; | |
3963 | clock->n = 3; | |
3964 | clock->m1 = 16; | |
3965 | clock->m2 = 8; | |
3966 | } else if (adjusted_mode->clock >= 140500 | |
3967 | && adjusted_mode->clock <= 200000) { | |
3968 | clock->p1 = 1; | |
3969 | clock->p2 = 10; | |
3970 | clock->n = 6; | |
3971 | clock->m1 = 12; | |
3972 | clock->m2 = 8; | |
3973 | } | |
3974 | } | |
3975 | ||
a7516a05 JB |
3976 | static void i9xx_update_pll_dividers(struct drm_crtc *crtc, |
3977 | intel_clock_t *clock, | |
3978 | intel_clock_t *reduced_clock) | |
3979 | { | |
3980 | struct drm_device *dev = crtc->dev; | |
3981 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3982 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3983 | int pipe = intel_crtc->pipe; | |
3984 | u32 fp, fp2 = 0; | |
3985 | ||
3986 | if (IS_PINEVIEW(dev)) { | |
3987 | fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2; | |
3988 | if (reduced_clock) | |
3989 | fp2 = (1 << reduced_clock->n) << 16 | | |
3990 | reduced_clock->m1 << 8 | reduced_clock->m2; | |
3991 | } else { | |
3992 | fp = clock->n << 16 | clock->m1 << 8 | clock->m2; | |
3993 | if (reduced_clock) | |
3994 | fp2 = reduced_clock->n << 16 | reduced_clock->m1 << 8 | | |
3995 | reduced_clock->m2; | |
3996 | } | |
3997 | ||
3998 | I915_WRITE(FP0(pipe), fp); | |
3999 | ||
4000 | intel_crtc->lowfreq_avail = false; | |
4001 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4002 | reduced_clock && i915_powersave) { | |
4003 | I915_WRITE(FP1(pipe), fp2); | |
4004 | intel_crtc->lowfreq_avail = true; | |
4005 | } else { | |
4006 | I915_WRITE(FP1(pipe), fp); | |
4007 | } | |
4008 | } | |
4009 | ||
93e537a1 DV |
4010 | static void intel_update_lvds(struct drm_crtc *crtc, intel_clock_t *clock, |
4011 | struct drm_display_mode *adjusted_mode) | |
4012 | { | |
4013 | struct drm_device *dev = crtc->dev; | |
4014 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4015 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4016 | int pipe = intel_crtc->pipe; | |
284d5df5 | 4017 | u32 temp; |
93e537a1 DV |
4018 | |
4019 | temp = I915_READ(LVDS); | |
4020 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; | |
4021 | if (pipe == 1) { | |
4022 | temp |= LVDS_PIPEB_SELECT; | |
4023 | } else { | |
4024 | temp &= ~LVDS_PIPEB_SELECT; | |
4025 | } | |
4026 | /* set the corresponsding LVDS_BORDER bit */ | |
4027 | temp |= dev_priv->lvds_border_bits; | |
4028 | /* Set the B0-B3 data pairs corresponding to whether we're going to | |
4029 | * set the DPLLs for dual-channel mode or not. | |
4030 | */ | |
4031 | if (clock->p2 == 7) | |
4032 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
4033 | else | |
4034 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); | |
4035 | ||
4036 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
4037 | * appropriately here, but we need to look more thoroughly into how | |
4038 | * panels behave in the two modes. | |
4039 | */ | |
4040 | /* set the dithering flag on LVDS as needed */ | |
4041 | if (INTEL_INFO(dev)->gen >= 4) { | |
4042 | if (dev_priv->lvds_dither) | |
4043 | temp |= LVDS_ENABLE_DITHER; | |
4044 | else | |
4045 | temp &= ~LVDS_ENABLE_DITHER; | |
4046 | } | |
284d5df5 | 4047 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
93e537a1 | 4048 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 4049 | temp |= LVDS_HSYNC_POLARITY; |
93e537a1 | 4050 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 4051 | temp |= LVDS_VSYNC_POLARITY; |
93e537a1 DV |
4052 | I915_WRITE(LVDS, temp); |
4053 | } | |
4054 | ||
a0c4da24 JB |
4055 | static void vlv_update_pll(struct drm_crtc *crtc, |
4056 | struct drm_display_mode *mode, | |
4057 | struct drm_display_mode *adjusted_mode, | |
4058 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
4059 | int refclk, int num_connectors) | |
4060 | { | |
4061 | struct drm_device *dev = crtc->dev; | |
4062 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4063 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4064 | int pipe = intel_crtc->pipe; | |
4065 | u32 dpll, mdiv, pdiv; | |
4066 | u32 bestn, bestm1, bestm2, bestp1, bestp2; | |
4067 | bool is_hdmi; | |
4068 | ||
4069 | is_hdmi = intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
4070 | ||
4071 | bestn = clock->n; | |
4072 | bestm1 = clock->m1; | |
4073 | bestm2 = clock->m2; | |
4074 | bestp1 = clock->p1; | |
4075 | bestp2 = clock->p2; | |
4076 | ||
4077 | /* Enable DPIO clock input */ | |
4078 | dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV | | |
4079 | DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV; | |
4080 | I915_WRITE(DPLL(pipe), dpll); | |
4081 | POSTING_READ(DPLL(pipe)); | |
4082 | ||
4083 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); | |
4084 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
4085 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
4086 | mdiv |= (1 << DPIO_POST_DIV_SHIFT); | |
4087 | mdiv |= (1 << DPIO_K_SHIFT); | |
4088 | mdiv |= DPIO_ENABLE_CALIBRATION; | |
4089 | intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv); | |
4090 | ||
4091 | intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), 0x01000000); | |
4092 | ||
4093 | pdiv = DPIO_REFSEL_OVERRIDE | (5 << DPIO_PLL_MODESEL_SHIFT) | | |
4094 | (3 << DPIO_BIAS_CURRENT_CTL_SHIFT) | (1<<20) | | |
4095 | (8 << DPIO_DRIVER_CTL_SHIFT) | (5 << DPIO_CLK_BIAS_CTL_SHIFT); | |
4096 | intel_dpio_write(dev_priv, DPIO_REFSFR(pipe), pdiv); | |
4097 | ||
4098 | intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), 0x009f0051); | |
4099 | ||
4100 | dpll |= DPLL_VCO_ENABLE; | |
4101 | I915_WRITE(DPLL(pipe), dpll); | |
4102 | POSTING_READ(DPLL(pipe)); | |
4103 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) | |
4104 | DRM_ERROR("DPLL %d failed to lock\n", pipe); | |
4105 | ||
4106 | if (is_hdmi) { | |
4107 | u32 temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4108 | ||
4109 | if (temp > 1) | |
4110 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
4111 | else | |
4112 | temp = 0; | |
4113 | ||
4114 | I915_WRITE(DPLL_MD(pipe), temp); | |
4115 | POSTING_READ(DPLL_MD(pipe)); | |
4116 | } | |
4117 | ||
4118 | intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x641); /* ??? */ | |
4119 | } | |
4120 | ||
eb1cbe48 DV |
4121 | static void i9xx_update_pll(struct drm_crtc *crtc, |
4122 | struct drm_display_mode *mode, | |
4123 | struct drm_display_mode *adjusted_mode, | |
4124 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
4125 | int num_connectors) | |
4126 | { | |
4127 | struct drm_device *dev = crtc->dev; | |
4128 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4129 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4130 | int pipe = intel_crtc->pipe; | |
4131 | u32 dpll; | |
4132 | bool is_sdvo; | |
4133 | ||
4134 | is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) || | |
4135 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
4136 | ||
4137 | dpll = DPLL_VGA_MODE_DIS; | |
4138 | ||
4139 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4140 | dpll |= DPLLB_MODE_LVDS; | |
4141 | else | |
4142 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
4143 | if (is_sdvo) { | |
4144 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4145 | if (pixel_multiplier > 1) { | |
4146 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) | |
4147 | dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; | |
4148 | } | |
4149 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4150 | } | |
4151 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4152 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4153 | ||
4154 | /* compute bitmask from p1 value */ | |
4155 | if (IS_PINEVIEW(dev)) | |
4156 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
4157 | else { | |
4158 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4159 | if (IS_G4X(dev) && reduced_clock) | |
4160 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4161 | } | |
4162 | switch (clock->p2) { | |
4163 | case 5: | |
4164 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4165 | break; | |
4166 | case 7: | |
4167 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4168 | break; | |
4169 | case 10: | |
4170 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4171 | break; | |
4172 | case 14: | |
4173 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4174 | break; | |
4175 | } | |
4176 | if (INTEL_INFO(dev)->gen >= 4) | |
4177 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
4178 | ||
4179 | if (is_sdvo && intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4180 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
4181 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4182 | /* XXX: just matching BIOS for now */ | |
4183 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
4184 | dpll |= 3; | |
4185 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4186 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
4187 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4188 | else | |
4189 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4190 | ||
4191 | dpll |= DPLL_VCO_ENABLE; | |
4192 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4193 | POSTING_READ(DPLL(pipe)); | |
4194 | udelay(150); | |
4195 | ||
4196 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
4197 | * This is an exception to the general rule that mode_set doesn't turn | |
4198 | * things on. | |
4199 | */ | |
4200 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4201 | intel_update_lvds(crtc, clock, adjusted_mode); | |
4202 | ||
4203 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4204 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
4205 | ||
4206 | I915_WRITE(DPLL(pipe), dpll); | |
4207 | ||
4208 | /* Wait for the clocks to stabilize. */ | |
4209 | POSTING_READ(DPLL(pipe)); | |
4210 | udelay(150); | |
4211 | ||
4212 | if (INTEL_INFO(dev)->gen >= 4) { | |
4213 | u32 temp = 0; | |
4214 | if (is_sdvo) { | |
4215 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4216 | if (temp > 1) | |
4217 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
4218 | else | |
4219 | temp = 0; | |
4220 | } | |
4221 | I915_WRITE(DPLL_MD(pipe), temp); | |
4222 | } else { | |
4223 | /* The pixel multiplier can only be updated once the | |
4224 | * DPLL is enabled and the clocks are stable. | |
4225 | * | |
4226 | * So write it again. | |
4227 | */ | |
4228 | I915_WRITE(DPLL(pipe), dpll); | |
4229 | } | |
4230 | } | |
4231 | ||
4232 | static void i8xx_update_pll(struct drm_crtc *crtc, | |
4233 | struct drm_display_mode *adjusted_mode, | |
4234 | intel_clock_t *clock, | |
4235 | int num_connectors) | |
4236 | { | |
4237 | struct drm_device *dev = crtc->dev; | |
4238 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4239 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4240 | int pipe = intel_crtc->pipe; | |
4241 | u32 dpll; | |
4242 | ||
4243 | dpll = DPLL_VGA_MODE_DIS; | |
4244 | ||
4245 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4246 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4247 | } else { | |
4248 | if (clock->p1 == 2) | |
4249 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
4250 | else | |
4251 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4252 | if (clock->p2 == 4) | |
4253 | dpll |= PLL_P2_DIVIDE_BY_4; | |
4254 | } | |
4255 | ||
4256 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4257 | /* XXX: just matching BIOS for now */ | |
4258 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
4259 | dpll |= 3; | |
4260 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4261 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
4262 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4263 | else | |
4264 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4265 | ||
4266 | dpll |= DPLL_VCO_ENABLE; | |
4267 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4268 | POSTING_READ(DPLL(pipe)); | |
4269 | udelay(150); | |
4270 | ||
4271 | I915_WRITE(DPLL(pipe), dpll); | |
4272 | ||
4273 | /* Wait for the clocks to stabilize. */ | |
4274 | POSTING_READ(DPLL(pipe)); | |
4275 | udelay(150); | |
4276 | ||
4277 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
4278 | * This is an exception to the general rule that mode_set doesn't turn | |
4279 | * things on. | |
4280 | */ | |
4281 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4282 | intel_update_lvds(crtc, clock, adjusted_mode); | |
4283 | ||
4284 | /* The pixel multiplier can only be updated once the | |
4285 | * DPLL is enabled and the clocks are stable. | |
4286 | * | |
4287 | * So write it again. | |
4288 | */ | |
4289 | I915_WRITE(DPLL(pipe), dpll); | |
4290 | } | |
4291 | ||
f564048e EA |
4292 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
4293 | struct drm_display_mode *mode, | |
4294 | struct drm_display_mode *adjusted_mode, | |
4295 | int x, int y, | |
94352cf9 | 4296 | struct drm_framebuffer *fb) |
79e53945 JB |
4297 | { |
4298 | struct drm_device *dev = crtc->dev; | |
4299 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4300 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4301 | int pipe = intel_crtc->pipe; | |
80824003 | 4302 | int plane = intel_crtc->plane; |
c751ce4f | 4303 | int refclk, num_connectors = 0; |
652c393a | 4304 | intel_clock_t clock, reduced_clock; |
eb1cbe48 DV |
4305 | u32 dspcntr, pipeconf, vsyncshift; |
4306 | bool ok, has_reduced_clock = false, is_sdvo = false; | |
4307 | bool is_lvds = false, is_tv = false, is_dp = false; | |
5eddb70b | 4308 | struct intel_encoder *encoder; |
d4906093 | 4309 | const intel_limit_t *limit; |
5c3b82e2 | 4310 | int ret; |
79e53945 | 4311 | |
6c2b7c12 | 4312 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5eddb70b | 4313 | switch (encoder->type) { |
79e53945 JB |
4314 | case INTEL_OUTPUT_LVDS: |
4315 | is_lvds = true; | |
4316 | break; | |
4317 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 4318 | case INTEL_OUTPUT_HDMI: |
79e53945 | 4319 | is_sdvo = true; |
5eddb70b | 4320 | if (encoder->needs_tv_clock) |
e2f0ba97 | 4321 | is_tv = true; |
79e53945 | 4322 | break; |
79e53945 JB |
4323 | case INTEL_OUTPUT_TVOUT: |
4324 | is_tv = true; | |
4325 | break; | |
a4fc5ed6 KP |
4326 | case INTEL_OUTPUT_DISPLAYPORT: |
4327 | is_dp = true; | |
4328 | break; | |
79e53945 | 4329 | } |
43565a06 | 4330 | |
c751ce4f | 4331 | num_connectors++; |
79e53945 JB |
4332 | } |
4333 | ||
c65d77d8 | 4334 | refclk = i9xx_get_refclk(crtc, num_connectors); |
79e53945 | 4335 | |
d4906093 ML |
4336 | /* |
4337 | * Returns a set of divisors for the desired target clock with the given | |
4338 | * refclk, or FALSE. The returned values represent the clock equation: | |
4339 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4340 | */ | |
1b894b59 | 4341 | limit = intel_limit(crtc, refclk); |
cec2f356 SP |
4342 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
4343 | &clock); | |
79e53945 JB |
4344 | if (!ok) { |
4345 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 4346 | return -EINVAL; |
79e53945 JB |
4347 | } |
4348 | ||
cda4b7d3 | 4349 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4350 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4351 | |
ddc9003c | 4352 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4353 | /* |
4354 | * Ensure we match the reduced clock's P to the target clock. | |
4355 | * If the clocks don't match, we can't switch the display clock | |
4356 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4357 | * downclock feature. | |
4358 | */ | |
ddc9003c | 4359 | has_reduced_clock = limit->find_pll(limit, crtc, |
5eddb70b CW |
4360 | dev_priv->lvds_downclock, |
4361 | refclk, | |
cec2f356 | 4362 | &clock, |
5eddb70b | 4363 | &reduced_clock); |
7026d4ac ZW |
4364 | } |
4365 | ||
c65d77d8 JB |
4366 | if (is_sdvo && is_tv) |
4367 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock); | |
7026d4ac | 4368 | |
a7516a05 JB |
4369 | i9xx_update_pll_dividers(crtc, &clock, has_reduced_clock ? |
4370 | &reduced_clock : NULL); | |
79e53945 | 4371 | |
eb1cbe48 DV |
4372 | if (IS_GEN2(dev)) |
4373 | i8xx_update_pll(crtc, adjusted_mode, &clock, num_connectors); | |
a0c4da24 JB |
4374 | else if (IS_VALLEYVIEW(dev)) |
4375 | vlv_update_pll(crtc, mode,adjusted_mode, &clock, NULL, | |
4376 | refclk, num_connectors); | |
79e53945 | 4377 | else |
eb1cbe48 DV |
4378 | i9xx_update_pll(crtc, mode, adjusted_mode, &clock, |
4379 | has_reduced_clock ? &reduced_clock : NULL, | |
4380 | num_connectors); | |
79e53945 JB |
4381 | |
4382 | /* setup pipeconf */ | |
5eddb70b | 4383 | pipeconf = I915_READ(PIPECONF(pipe)); |
79e53945 JB |
4384 | |
4385 | /* Set up the display plane register */ | |
4386 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4387 | ||
929c77fb EA |
4388 | if (pipe == 0) |
4389 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; | |
4390 | else | |
4391 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
79e53945 | 4392 | |
a6c45cf0 | 4393 | if (pipe == 0 && INTEL_INFO(dev)->gen < 4) { |
79e53945 JB |
4394 | /* Enable pixel doubling when the dot clock is > 90% of the (display) |
4395 | * core speed. | |
4396 | * | |
4397 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
4398 | * pipe == 0 check? | |
4399 | */ | |
e70236a8 JB |
4400 | if (mode->clock > |
4401 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
5eddb70b | 4402 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
79e53945 | 4403 | else |
5eddb70b | 4404 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; |
79e53945 JB |
4405 | } |
4406 | ||
3b5c78a3 AJ |
4407 | /* default to 8bpc */ |
4408 | pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN); | |
4409 | if (is_dp) { | |
4410 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { | |
4411 | pipeconf |= PIPECONF_BPP_6 | | |
4412 | PIPECONF_DITHER_EN | | |
4413 | PIPECONF_DITHER_TYPE_SP; | |
4414 | } | |
4415 | } | |
4416 | ||
28c97730 | 4417 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
79e53945 JB |
4418 | drm_mode_debug_printmodeline(mode); |
4419 | ||
a7516a05 JB |
4420 | if (HAS_PIPE_CXSR(dev)) { |
4421 | if (intel_crtc->lowfreq_avail) { | |
28c97730 | 4422 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
652c393a | 4423 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
a7516a05 | 4424 | } else { |
28c97730 | 4425 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
652c393a JB |
4426 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
4427 | } | |
4428 | } | |
4429 | ||
617cf884 | 4430 | pipeconf &= ~PIPECONF_INTERLACE_MASK; |
dbb02575 DV |
4431 | if (!IS_GEN2(dev) && |
4432 | adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { | |
734b4157 KH |
4433 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
4434 | /* the chip adds 2 halflines automatically */ | |
734b4157 | 4435 | adjusted_mode->crtc_vtotal -= 1; |
734b4157 | 4436 | adjusted_mode->crtc_vblank_end -= 1; |
0529a0d9 DV |
4437 | vsyncshift = adjusted_mode->crtc_hsync_start |
4438 | - adjusted_mode->crtc_htotal/2; | |
4439 | } else { | |
617cf884 | 4440 | pipeconf |= PIPECONF_PROGRESSIVE; |
0529a0d9 DV |
4441 | vsyncshift = 0; |
4442 | } | |
4443 | ||
4444 | if (!IS_GEN3(dev)) | |
4445 | I915_WRITE(VSYNCSHIFT(pipe), vsyncshift); | |
734b4157 | 4446 | |
5eddb70b CW |
4447 | I915_WRITE(HTOTAL(pipe), |
4448 | (adjusted_mode->crtc_hdisplay - 1) | | |
79e53945 | 4449 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
5eddb70b CW |
4450 | I915_WRITE(HBLANK(pipe), |
4451 | (adjusted_mode->crtc_hblank_start - 1) | | |
79e53945 | 4452 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
5eddb70b CW |
4453 | I915_WRITE(HSYNC(pipe), |
4454 | (adjusted_mode->crtc_hsync_start - 1) | | |
79e53945 | 4455 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
5eddb70b CW |
4456 | |
4457 | I915_WRITE(VTOTAL(pipe), | |
4458 | (adjusted_mode->crtc_vdisplay - 1) | | |
79e53945 | 4459 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
5eddb70b CW |
4460 | I915_WRITE(VBLANK(pipe), |
4461 | (adjusted_mode->crtc_vblank_start - 1) | | |
79e53945 | 4462 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
5eddb70b CW |
4463 | I915_WRITE(VSYNC(pipe), |
4464 | (adjusted_mode->crtc_vsync_start - 1) | | |
79e53945 | 4465 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
5eddb70b CW |
4466 | |
4467 | /* pipesrc and dspsize control the size that is scaled from, | |
4468 | * which should always be the user's requested size. | |
79e53945 | 4469 | */ |
929c77fb EA |
4470 | I915_WRITE(DSPSIZE(plane), |
4471 | ((mode->vdisplay - 1) << 16) | | |
4472 | (mode->hdisplay - 1)); | |
4473 | I915_WRITE(DSPPOS(plane), 0); | |
5eddb70b CW |
4474 | I915_WRITE(PIPESRC(pipe), |
4475 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
2c07245f | 4476 | |
f564048e EA |
4477 | I915_WRITE(PIPECONF(pipe), pipeconf); |
4478 | POSTING_READ(PIPECONF(pipe)); | |
929c77fb | 4479 | intel_enable_pipe(dev_priv, pipe, false); |
f564048e EA |
4480 | |
4481 | intel_wait_for_vblank(dev, pipe); | |
4482 | ||
f564048e EA |
4483 | I915_WRITE(DSPCNTR(plane), dspcntr); |
4484 | POSTING_READ(DSPCNTR(plane)); | |
4485 | ||
94352cf9 | 4486 | ret = intel_pipe_set_base(crtc, x, y, fb); |
f564048e EA |
4487 | |
4488 | intel_update_watermarks(dev); | |
4489 | ||
f564048e EA |
4490 | return ret; |
4491 | } | |
4492 | ||
9fb526db KP |
4493 | /* |
4494 | * Initialize reference clocks when the driver loads | |
4495 | */ | |
4496 | void ironlake_init_pch_refclk(struct drm_device *dev) | |
13d83a67 JB |
4497 | { |
4498 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4499 | struct drm_mode_config *mode_config = &dev->mode_config; | |
13d83a67 | 4500 | struct intel_encoder *encoder; |
13d83a67 JB |
4501 | u32 temp; |
4502 | bool has_lvds = false; | |
199e5d79 KP |
4503 | bool has_cpu_edp = false; |
4504 | bool has_pch_edp = false; | |
4505 | bool has_panel = false; | |
99eb6a01 KP |
4506 | bool has_ck505 = false; |
4507 | bool can_ssc = false; | |
13d83a67 JB |
4508 | |
4509 | /* We need to take the global config into account */ | |
199e5d79 KP |
4510 | list_for_each_entry(encoder, &mode_config->encoder_list, |
4511 | base.head) { | |
4512 | switch (encoder->type) { | |
4513 | case INTEL_OUTPUT_LVDS: | |
4514 | has_panel = true; | |
4515 | has_lvds = true; | |
4516 | break; | |
4517 | case INTEL_OUTPUT_EDP: | |
4518 | has_panel = true; | |
4519 | if (intel_encoder_is_pch_edp(&encoder->base)) | |
4520 | has_pch_edp = true; | |
4521 | else | |
4522 | has_cpu_edp = true; | |
4523 | break; | |
13d83a67 JB |
4524 | } |
4525 | } | |
4526 | ||
99eb6a01 KP |
4527 | if (HAS_PCH_IBX(dev)) { |
4528 | has_ck505 = dev_priv->display_clock_mode; | |
4529 | can_ssc = has_ck505; | |
4530 | } else { | |
4531 | has_ck505 = false; | |
4532 | can_ssc = true; | |
4533 | } | |
4534 | ||
4535 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n", | |
4536 | has_panel, has_lvds, has_pch_edp, has_cpu_edp, | |
4537 | has_ck505); | |
13d83a67 JB |
4538 | |
4539 | /* Ironlake: try to setup display ref clock before DPLL | |
4540 | * enabling. This is only under driver's control after | |
4541 | * PCH B stepping, previous chipset stepping should be | |
4542 | * ignoring this setting. | |
4543 | */ | |
4544 | temp = I915_READ(PCH_DREF_CONTROL); | |
4545 | /* Always enable nonspread source */ | |
4546 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; | |
13d83a67 | 4547 | |
99eb6a01 KP |
4548 | if (has_ck505) |
4549 | temp |= DREF_NONSPREAD_CK505_ENABLE; | |
4550 | else | |
4551 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; | |
13d83a67 | 4552 | |
199e5d79 KP |
4553 | if (has_panel) { |
4554 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4555 | temp |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 4556 | |
199e5d79 | 4557 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 4558 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4559 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
13d83a67 | 4560 | temp |= DREF_SSC1_ENABLE; |
e77166b5 DV |
4561 | } else |
4562 | temp &= ~DREF_SSC1_ENABLE; | |
199e5d79 KP |
4563 | |
4564 | /* Get SSC going before enabling the outputs */ | |
4565 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4566 | POSTING_READ(PCH_DREF_CONTROL); | |
4567 | udelay(200); | |
4568 | ||
13d83a67 JB |
4569 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
4570 | ||
4571 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 4572 | if (has_cpu_edp) { |
99eb6a01 | 4573 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4574 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
13d83a67 | 4575 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
199e5d79 | 4576 | } |
13d83a67 JB |
4577 | else |
4578 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
199e5d79 KP |
4579 | } else |
4580 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4581 | ||
4582 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4583 | POSTING_READ(PCH_DREF_CONTROL); | |
4584 | udelay(200); | |
4585 | } else { | |
4586 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
4587 | ||
4588 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
4589 | ||
4590 | /* Turn off CPU output */ | |
4591 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4592 | ||
4593 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4594 | POSTING_READ(PCH_DREF_CONTROL); | |
4595 | udelay(200); | |
4596 | ||
4597 | /* Turn off the SSC source */ | |
4598 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4599 | temp |= DREF_SSC_SOURCE_DISABLE; | |
4600 | ||
4601 | /* Turn off SSC1 */ | |
4602 | temp &= ~ DREF_SSC1_ENABLE; | |
4603 | ||
13d83a67 JB |
4604 | I915_WRITE(PCH_DREF_CONTROL, temp); |
4605 | POSTING_READ(PCH_DREF_CONTROL); | |
4606 | udelay(200); | |
4607 | } | |
4608 | } | |
4609 | ||
d9d444cb JB |
4610 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
4611 | { | |
4612 | struct drm_device *dev = crtc->dev; | |
4613 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4614 | struct intel_encoder *encoder; | |
d9d444cb JB |
4615 | struct intel_encoder *edp_encoder = NULL; |
4616 | int num_connectors = 0; | |
4617 | bool is_lvds = false; | |
4618 | ||
6c2b7c12 | 4619 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
d9d444cb JB |
4620 | switch (encoder->type) { |
4621 | case INTEL_OUTPUT_LVDS: | |
4622 | is_lvds = true; | |
4623 | break; | |
4624 | case INTEL_OUTPUT_EDP: | |
4625 | edp_encoder = encoder; | |
4626 | break; | |
4627 | } | |
4628 | num_connectors++; | |
4629 | } | |
4630 | ||
4631 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
4632 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
4633 | dev_priv->lvds_ssc_freq); | |
4634 | return dev_priv->lvds_ssc_freq * 1000; | |
4635 | } | |
4636 | ||
4637 | return 120000; | |
4638 | } | |
4639 | ||
f564048e EA |
4640 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, |
4641 | struct drm_display_mode *mode, | |
4642 | struct drm_display_mode *adjusted_mode, | |
4643 | int x, int y, | |
94352cf9 | 4644 | struct drm_framebuffer *fb) |
79e53945 JB |
4645 | { |
4646 | struct drm_device *dev = crtc->dev; | |
4647 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4648 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4649 | int pipe = intel_crtc->pipe; | |
80824003 | 4650 | int plane = intel_crtc->plane; |
c751ce4f | 4651 | int refclk, num_connectors = 0; |
652c393a | 4652 | intel_clock_t clock, reduced_clock; |
5eddb70b | 4653 | u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf; |
a07d6787 | 4654 | bool ok, has_reduced_clock = false, is_sdvo = false; |
a4fc5ed6 | 4655 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
e3aef172 | 4656 | struct intel_encoder *encoder, *edp_encoder = NULL; |
d4906093 | 4657 | const intel_limit_t *limit; |
5c3b82e2 | 4658 | int ret; |
2c07245f | 4659 | struct fdi_m_n m_n = {0}; |
fae14981 | 4660 | u32 temp; |
5a354204 JB |
4661 | int target_clock, pixel_multiplier, lane, link_bw, factor; |
4662 | unsigned int pipe_bpp; | |
4663 | bool dither; | |
e3aef172 | 4664 | bool is_cpu_edp = false, is_pch_edp = false; |
79e53945 | 4665 | |
6c2b7c12 | 4666 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5eddb70b | 4667 | switch (encoder->type) { |
79e53945 JB |
4668 | case INTEL_OUTPUT_LVDS: |
4669 | is_lvds = true; | |
4670 | break; | |
4671 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 4672 | case INTEL_OUTPUT_HDMI: |
79e53945 | 4673 | is_sdvo = true; |
5eddb70b | 4674 | if (encoder->needs_tv_clock) |
e2f0ba97 | 4675 | is_tv = true; |
79e53945 | 4676 | break; |
79e53945 JB |
4677 | case INTEL_OUTPUT_TVOUT: |
4678 | is_tv = true; | |
4679 | break; | |
4680 | case INTEL_OUTPUT_ANALOG: | |
4681 | is_crt = true; | |
4682 | break; | |
a4fc5ed6 KP |
4683 | case INTEL_OUTPUT_DISPLAYPORT: |
4684 | is_dp = true; | |
4685 | break; | |
32f9d658 | 4686 | case INTEL_OUTPUT_EDP: |
e3aef172 JB |
4687 | is_dp = true; |
4688 | if (intel_encoder_is_pch_edp(&encoder->base)) | |
4689 | is_pch_edp = true; | |
4690 | else | |
4691 | is_cpu_edp = true; | |
4692 | edp_encoder = encoder; | |
32f9d658 | 4693 | break; |
79e53945 | 4694 | } |
43565a06 | 4695 | |
c751ce4f | 4696 | num_connectors++; |
79e53945 JB |
4697 | } |
4698 | ||
d9d444cb | 4699 | refclk = ironlake_get_refclk(crtc); |
79e53945 | 4700 | |
d4906093 ML |
4701 | /* |
4702 | * Returns a set of divisors for the desired target clock with the given | |
4703 | * refclk, or FALSE. The returned values represent the clock equation: | |
4704 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4705 | */ | |
1b894b59 | 4706 | limit = intel_limit(crtc, refclk); |
cec2f356 SP |
4707 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
4708 | &clock); | |
79e53945 JB |
4709 | if (!ok) { |
4710 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 4711 | return -EINVAL; |
79e53945 JB |
4712 | } |
4713 | ||
cda4b7d3 | 4714 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4715 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4716 | |
ddc9003c | 4717 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4718 | /* |
4719 | * Ensure we match the reduced clock's P to the target clock. | |
4720 | * If the clocks don't match, we can't switch the display clock | |
4721 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4722 | * downclock feature. | |
4723 | */ | |
ddc9003c | 4724 | has_reduced_clock = limit->find_pll(limit, crtc, |
5eddb70b CW |
4725 | dev_priv->lvds_downclock, |
4726 | refclk, | |
cec2f356 | 4727 | &clock, |
5eddb70b | 4728 | &reduced_clock); |
652c393a | 4729 | } |
61e9653f DV |
4730 | |
4731 | if (is_sdvo && is_tv) | |
4732 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock); | |
4733 | ||
7026d4ac | 4734 | |
2c07245f | 4735 | /* FDI link */ |
8febb297 EA |
4736 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
4737 | lane = 0; | |
4738 | /* CPU eDP doesn't require FDI link, so just set DP M/N | |
4739 | according to current link config */ | |
e3aef172 | 4740 | if (is_cpu_edp) { |
e3aef172 | 4741 | intel_edp_link_config(edp_encoder, &lane, &link_bw); |
8febb297 | 4742 | } else { |
8febb297 EA |
4743 | /* FDI is a binary signal running at ~2.7GHz, encoding |
4744 | * each output octet as 10 bits. The actual frequency | |
4745 | * is stored as a divider into a 100MHz clock, and the | |
4746 | * mode pixel clock is stored in units of 1KHz. | |
4747 | * Hence the bw of each lane in terms of the mode signal | |
4748 | * is: | |
4749 | */ | |
4750 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
4751 | } | |
58a27471 | 4752 | |
94bf2ced DV |
4753 | /* [e]DP over FDI requires target mode clock instead of link clock. */ |
4754 | if (edp_encoder) | |
4755 | target_clock = intel_edp_target_clock(edp_encoder, mode); | |
4756 | else if (is_dp) | |
4757 | target_clock = mode->clock; | |
4758 | else | |
4759 | target_clock = adjusted_mode->clock; | |
4760 | ||
8febb297 EA |
4761 | /* determine panel color depth */ |
4762 | temp = I915_READ(PIPECONF(pipe)); | |
4763 | temp &= ~PIPE_BPC_MASK; | |
94352cf9 | 4764 | dither = intel_choose_pipe_bpp_dither(crtc, fb, &pipe_bpp, mode); |
5a354204 JB |
4765 | switch (pipe_bpp) { |
4766 | case 18: | |
4767 | temp |= PIPE_6BPC; | |
8febb297 | 4768 | break; |
5a354204 JB |
4769 | case 24: |
4770 | temp |= PIPE_8BPC; | |
8febb297 | 4771 | break; |
5a354204 JB |
4772 | case 30: |
4773 | temp |= PIPE_10BPC; | |
8febb297 | 4774 | break; |
5a354204 JB |
4775 | case 36: |
4776 | temp |= PIPE_12BPC; | |
8febb297 EA |
4777 | break; |
4778 | default: | |
62ac41a6 JB |
4779 | WARN(1, "intel_choose_pipe_bpp returned invalid value %d\n", |
4780 | pipe_bpp); | |
5a354204 JB |
4781 | temp |= PIPE_8BPC; |
4782 | pipe_bpp = 24; | |
4783 | break; | |
8febb297 | 4784 | } |
77ffb597 | 4785 | |
5a354204 JB |
4786 | intel_crtc->bpp = pipe_bpp; |
4787 | I915_WRITE(PIPECONF(pipe), temp); | |
4788 | ||
8febb297 EA |
4789 | if (!lane) { |
4790 | /* | |
4791 | * Account for spread spectrum to avoid | |
4792 | * oversubscribing the link. Max center spread | |
4793 | * is 2.5%; use 5% for safety's sake. | |
4794 | */ | |
5a354204 | 4795 | u32 bps = target_clock * intel_crtc->bpp * 21 / 20; |
8febb297 | 4796 | lane = bps / (link_bw * 8) + 1; |
5eb08b69 | 4797 | } |
2c07245f | 4798 | |
8febb297 EA |
4799 | intel_crtc->fdi_lanes = lane; |
4800 | ||
4801 | if (pixel_multiplier > 1) | |
4802 | link_bw *= pixel_multiplier; | |
5a354204 JB |
4803 | ironlake_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw, |
4804 | &m_n); | |
8febb297 | 4805 | |
a07d6787 EA |
4806 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
4807 | if (has_reduced_clock) | |
4808 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
4809 | reduced_clock.m2; | |
79e53945 | 4810 | |
c1858123 | 4811 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
4812 | factor = 21; |
4813 | if (is_lvds) { | |
4814 | if ((intel_panel_use_ssc(dev_priv) && | |
4815 | dev_priv->lvds_ssc_freq == 100) || | |
4816 | (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) | |
4817 | factor = 25; | |
4818 | } else if (is_sdvo && is_tv) | |
4819 | factor = 20; | |
c1858123 | 4820 | |
cb0e0931 | 4821 | if (clock.m < factor * clock.n) |
8febb297 | 4822 | fp |= FP_CB_TUNE; |
2c07245f | 4823 | |
5eddb70b | 4824 | dpll = 0; |
2c07245f | 4825 | |
a07d6787 EA |
4826 | if (is_lvds) |
4827 | dpll |= DPLLB_MODE_LVDS; | |
4828 | else | |
4829 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
4830 | if (is_sdvo) { | |
4831 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4832 | if (pixel_multiplier > 1) { | |
4833 | dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
79e53945 | 4834 | } |
a07d6787 EA |
4835 | dpll |= DPLL_DVO_HIGH_SPEED; |
4836 | } | |
e3aef172 | 4837 | if (is_dp && !is_cpu_edp) |
a07d6787 | 4838 | dpll |= DPLL_DVO_HIGH_SPEED; |
79e53945 | 4839 | |
a07d6787 EA |
4840 | /* compute bitmask from p1 value */ |
4841 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4842 | /* also FPA1 */ | |
4843 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4844 | ||
4845 | switch (clock.p2) { | |
4846 | case 5: | |
4847 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4848 | break; | |
4849 | case 7: | |
4850 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4851 | break; | |
4852 | case 10: | |
4853 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4854 | break; | |
4855 | case 14: | |
4856 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4857 | break; | |
79e53945 JB |
4858 | } |
4859 | ||
43565a06 KH |
4860 | if (is_sdvo && is_tv) |
4861 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
4862 | else if (is_tv) | |
79e53945 | 4863 | /* XXX: just matching BIOS for now */ |
43565a06 | 4864 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
79e53945 | 4865 | dpll |= 3; |
a7615030 | 4866 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 4867 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
4868 | else |
4869 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4870 | ||
4871 | /* setup pipeconf */ | |
5eddb70b | 4872 | pipeconf = I915_READ(PIPECONF(pipe)); |
79e53945 JB |
4873 | |
4874 | /* Set up the display plane register */ | |
4875 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4876 | ||
f7cb34d4 | 4877 | DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); |
79e53945 JB |
4878 | drm_mode_debug_printmodeline(mode); |
4879 | ||
9d82aa17 ED |
4880 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own on |
4881 | * pre-Haswell/LPT generation */ | |
4882 | if (HAS_PCH_LPT(dev)) { | |
4883 | DRM_DEBUG_KMS("LPT detected: no PLL for pipe %d necessary\n", | |
4884 | pipe); | |
4885 | } else if (!is_cpu_edp) { | |
ee7b9f93 | 4886 | struct intel_pch_pll *pll; |
4b645f14 | 4887 | |
ee7b9f93 JB |
4888 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); |
4889 | if (pll == NULL) { | |
4890 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n", | |
4891 | pipe); | |
4b645f14 JB |
4892 | return -EINVAL; |
4893 | } | |
ee7b9f93 JB |
4894 | } else |
4895 | intel_put_pch_pll(intel_crtc); | |
79e53945 JB |
4896 | |
4897 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
4898 | * This is an exception to the general rule that mode_set doesn't turn | |
4899 | * things on. | |
4900 | */ | |
4901 | if (is_lvds) { | |
fae14981 | 4902 | temp = I915_READ(PCH_LVDS); |
5eddb70b | 4903 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
7885d205 JB |
4904 | if (HAS_PCH_CPT(dev)) { |
4905 | temp &= ~PORT_TRANS_SEL_MASK; | |
4b645f14 | 4906 | temp |= PORT_TRANS_SEL_CPT(pipe); |
7885d205 JB |
4907 | } else { |
4908 | if (pipe == 1) | |
4909 | temp |= LVDS_PIPEB_SELECT; | |
4910 | else | |
4911 | temp &= ~LVDS_PIPEB_SELECT; | |
4912 | } | |
4b645f14 | 4913 | |
a3e17eb8 | 4914 | /* set the corresponsding LVDS_BORDER bit */ |
5eddb70b | 4915 | temp |= dev_priv->lvds_border_bits; |
79e53945 JB |
4916 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
4917 | * set the DPLLs for dual-channel mode or not. | |
4918 | */ | |
4919 | if (clock.p2 == 7) | |
5eddb70b | 4920 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
79e53945 | 4921 | else |
5eddb70b | 4922 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
79e53945 JB |
4923 | |
4924 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
4925 | * appropriately here, but we need to look more thoroughly into how | |
4926 | * panels behave in the two modes. | |
4927 | */ | |
284d5df5 | 4928 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
aa9b500d | 4929 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 4930 | temp |= LVDS_HSYNC_POLARITY; |
aa9b500d | 4931 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 4932 | temp |= LVDS_VSYNC_POLARITY; |
fae14981 | 4933 | I915_WRITE(PCH_LVDS, temp); |
79e53945 | 4934 | } |
434ed097 | 4935 | |
8febb297 EA |
4936 | pipeconf &= ~PIPECONF_DITHER_EN; |
4937 | pipeconf &= ~PIPECONF_DITHER_TYPE_MASK; | |
5a354204 | 4938 | if ((is_lvds && dev_priv->lvds_dither) || dither) { |
8febb297 | 4939 | pipeconf |= PIPECONF_DITHER_EN; |
f74974c7 | 4940 | pipeconf |= PIPECONF_DITHER_TYPE_SP; |
434ed097 | 4941 | } |
e3aef172 | 4942 | if (is_dp && !is_cpu_edp) { |
a4fc5ed6 | 4943 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
8febb297 | 4944 | } else { |
8db9d77b | 4945 | /* For non-DP output, clear any trans DP clock recovery setting.*/ |
9db4a9c7 JB |
4946 | I915_WRITE(TRANSDATA_M1(pipe), 0); |
4947 | I915_WRITE(TRANSDATA_N1(pipe), 0); | |
4948 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); | |
4949 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); | |
8db9d77b | 4950 | } |
79e53945 | 4951 | |
ee7b9f93 JB |
4952 | if (intel_crtc->pch_pll) { |
4953 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5eddb70b | 4954 | |
32f9d658 | 4955 | /* Wait for the clocks to stabilize. */ |
ee7b9f93 | 4956 | POSTING_READ(intel_crtc->pch_pll->pll_reg); |
32f9d658 ZW |
4957 | udelay(150); |
4958 | ||
8febb297 EA |
4959 | /* The pixel multiplier can only be updated once the |
4960 | * DPLL is enabled and the clocks are stable. | |
4961 | * | |
4962 | * So write it again. | |
4963 | */ | |
ee7b9f93 | 4964 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); |
79e53945 | 4965 | } |
79e53945 | 4966 | |
5eddb70b | 4967 | intel_crtc->lowfreq_avail = false; |
ee7b9f93 | 4968 | if (intel_crtc->pch_pll) { |
4b645f14 | 4969 | if (is_lvds && has_reduced_clock && i915_powersave) { |
ee7b9f93 | 4970 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); |
4b645f14 | 4971 | intel_crtc->lowfreq_avail = true; |
4b645f14 | 4972 | } else { |
ee7b9f93 | 4973 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); |
652c393a JB |
4974 | } |
4975 | } | |
4976 | ||
617cf884 | 4977 | pipeconf &= ~PIPECONF_INTERLACE_MASK; |
734b4157 | 4978 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
5def474e | 4979 | pipeconf |= PIPECONF_INTERLACED_ILK; |
734b4157 | 4980 | /* the chip adds 2 halflines automatically */ |
734b4157 | 4981 | adjusted_mode->crtc_vtotal -= 1; |
734b4157 | 4982 | adjusted_mode->crtc_vblank_end -= 1; |
0529a0d9 DV |
4983 | I915_WRITE(VSYNCSHIFT(pipe), |
4984 | adjusted_mode->crtc_hsync_start | |
4985 | - adjusted_mode->crtc_htotal/2); | |
4986 | } else { | |
617cf884 | 4987 | pipeconf |= PIPECONF_PROGRESSIVE; |
0529a0d9 DV |
4988 | I915_WRITE(VSYNCSHIFT(pipe), 0); |
4989 | } | |
734b4157 | 4990 | |
5eddb70b CW |
4991 | I915_WRITE(HTOTAL(pipe), |
4992 | (adjusted_mode->crtc_hdisplay - 1) | | |
79e53945 | 4993 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
5eddb70b CW |
4994 | I915_WRITE(HBLANK(pipe), |
4995 | (adjusted_mode->crtc_hblank_start - 1) | | |
79e53945 | 4996 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
5eddb70b CW |
4997 | I915_WRITE(HSYNC(pipe), |
4998 | (adjusted_mode->crtc_hsync_start - 1) | | |
79e53945 | 4999 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
5eddb70b CW |
5000 | |
5001 | I915_WRITE(VTOTAL(pipe), | |
5002 | (adjusted_mode->crtc_vdisplay - 1) | | |
79e53945 | 5003 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
5eddb70b CW |
5004 | I915_WRITE(VBLANK(pipe), |
5005 | (adjusted_mode->crtc_vblank_start - 1) | | |
79e53945 | 5006 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
5eddb70b CW |
5007 | I915_WRITE(VSYNC(pipe), |
5008 | (adjusted_mode->crtc_vsync_start - 1) | | |
79e53945 | 5009 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
5eddb70b | 5010 | |
8febb297 EA |
5011 | /* pipesrc controls the size that is scaled from, which should |
5012 | * always be the user's requested size. | |
79e53945 | 5013 | */ |
5eddb70b CW |
5014 | I915_WRITE(PIPESRC(pipe), |
5015 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
2c07245f | 5016 | |
8febb297 EA |
5017 | I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m); |
5018 | I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n); | |
5019 | I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m); | |
5020 | I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n); | |
2c07245f | 5021 | |
e3aef172 | 5022 | if (is_cpu_edp) |
8febb297 | 5023 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
2c07245f | 5024 | |
5eddb70b CW |
5025 | I915_WRITE(PIPECONF(pipe), pipeconf); |
5026 | POSTING_READ(PIPECONF(pipe)); | |
79e53945 | 5027 | |
9d0498a2 | 5028 | intel_wait_for_vblank(dev, pipe); |
79e53945 | 5029 | |
5eddb70b | 5030 | I915_WRITE(DSPCNTR(plane), dspcntr); |
b24e7179 | 5031 | POSTING_READ(DSPCNTR(plane)); |
79e53945 | 5032 | |
94352cf9 | 5033 | ret = intel_pipe_set_base(crtc, x, y, fb); |
7662c8bd SL |
5034 | |
5035 | intel_update_watermarks(dev); | |
5036 | ||
1f8eeabf ED |
5037 | intel_update_linetime_watermarks(dev, pipe, adjusted_mode); |
5038 | ||
1f803ee5 | 5039 | return ret; |
79e53945 JB |
5040 | } |
5041 | ||
f564048e EA |
5042 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
5043 | struct drm_display_mode *mode, | |
5044 | struct drm_display_mode *adjusted_mode, | |
5045 | int x, int y, | |
94352cf9 | 5046 | struct drm_framebuffer *fb) |
f564048e EA |
5047 | { |
5048 | struct drm_device *dev = crtc->dev; | |
5049 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0b701d27 EA |
5050 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5051 | int pipe = intel_crtc->pipe; | |
f564048e EA |
5052 | int ret; |
5053 | ||
0b701d27 | 5054 | drm_vblank_pre_modeset(dev, pipe); |
7662c8bd | 5055 | |
f564048e | 5056 | ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, |
94352cf9 | 5057 | x, y, fb); |
79e53945 | 5058 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 5059 | |
1f803ee5 | 5060 | return ret; |
79e53945 JB |
5061 | } |
5062 | ||
3a9627f4 WF |
5063 | static bool intel_eld_uptodate(struct drm_connector *connector, |
5064 | int reg_eldv, uint32_t bits_eldv, | |
5065 | int reg_elda, uint32_t bits_elda, | |
5066 | int reg_edid) | |
5067 | { | |
5068 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5069 | uint8_t *eld = connector->eld; | |
5070 | uint32_t i; | |
5071 | ||
5072 | i = I915_READ(reg_eldv); | |
5073 | i &= bits_eldv; | |
5074 | ||
5075 | if (!eld[0]) | |
5076 | return !i; | |
5077 | ||
5078 | if (!i) | |
5079 | return false; | |
5080 | ||
5081 | i = I915_READ(reg_elda); | |
5082 | i &= ~bits_elda; | |
5083 | I915_WRITE(reg_elda, i); | |
5084 | ||
5085 | for (i = 0; i < eld[2]; i++) | |
5086 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) | |
5087 | return false; | |
5088 | ||
5089 | return true; | |
5090 | } | |
5091 | ||
e0dac65e WF |
5092 | static void g4x_write_eld(struct drm_connector *connector, |
5093 | struct drm_crtc *crtc) | |
5094 | { | |
5095 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5096 | uint8_t *eld = connector->eld; | |
5097 | uint32_t eldv; | |
5098 | uint32_t len; | |
5099 | uint32_t i; | |
5100 | ||
5101 | i = I915_READ(G4X_AUD_VID_DID); | |
5102 | ||
5103 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) | |
5104 | eldv = G4X_ELDV_DEVCL_DEVBLC; | |
5105 | else | |
5106 | eldv = G4X_ELDV_DEVCTG; | |
5107 | ||
3a9627f4 WF |
5108 | if (intel_eld_uptodate(connector, |
5109 | G4X_AUD_CNTL_ST, eldv, | |
5110 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, | |
5111 | G4X_HDMIW_HDMIEDID)) | |
5112 | return; | |
5113 | ||
e0dac65e WF |
5114 | i = I915_READ(G4X_AUD_CNTL_ST); |
5115 | i &= ~(eldv | G4X_ELD_ADDR); | |
5116 | len = (i >> 9) & 0x1f; /* ELD buffer size */ | |
5117 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
5118 | ||
5119 | if (!eld[0]) | |
5120 | return; | |
5121 | ||
5122 | len = min_t(uint8_t, eld[2], len); | |
5123 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5124 | for (i = 0; i < len; i++) | |
5125 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); | |
5126 | ||
5127 | i = I915_READ(G4X_AUD_CNTL_ST); | |
5128 | i |= eldv; | |
5129 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
5130 | } | |
5131 | ||
83358c85 WX |
5132 | static void haswell_write_eld(struct drm_connector *connector, |
5133 | struct drm_crtc *crtc) | |
5134 | { | |
5135 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5136 | uint8_t *eld = connector->eld; | |
5137 | struct drm_device *dev = crtc->dev; | |
5138 | uint32_t eldv; | |
5139 | uint32_t i; | |
5140 | int len; | |
5141 | int pipe = to_intel_crtc(crtc)->pipe; | |
5142 | int tmp; | |
5143 | ||
5144 | int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe); | |
5145 | int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe); | |
5146 | int aud_config = HSW_AUD_CFG(pipe); | |
5147 | int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD; | |
5148 | ||
5149 | ||
5150 | DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n"); | |
5151 | ||
5152 | /* Audio output enable */ | |
5153 | DRM_DEBUG_DRIVER("HDMI audio: enable codec\n"); | |
5154 | tmp = I915_READ(aud_cntrl_st2); | |
5155 | tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4)); | |
5156 | I915_WRITE(aud_cntrl_st2, tmp); | |
5157 | ||
5158 | /* Wait for 1 vertical blank */ | |
5159 | intel_wait_for_vblank(dev, pipe); | |
5160 | ||
5161 | /* Set ELD valid state */ | |
5162 | tmp = I915_READ(aud_cntrl_st2); | |
5163 | DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp); | |
5164 | tmp |= (AUDIO_ELD_VALID_A << (pipe * 4)); | |
5165 | I915_WRITE(aud_cntrl_st2, tmp); | |
5166 | tmp = I915_READ(aud_cntrl_st2); | |
5167 | DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp); | |
5168 | ||
5169 | /* Enable HDMI mode */ | |
5170 | tmp = I915_READ(aud_config); | |
5171 | DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp); | |
5172 | /* clear N_programing_enable and N_value_index */ | |
5173 | tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE); | |
5174 | I915_WRITE(aud_config, tmp); | |
5175 | ||
5176 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); | |
5177 | ||
5178 | eldv = AUDIO_ELD_VALID_A << (pipe * 4); | |
5179 | ||
5180 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { | |
5181 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
5182 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
5183 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ | |
5184 | } else | |
5185 | I915_WRITE(aud_config, 0); | |
5186 | ||
5187 | if (intel_eld_uptodate(connector, | |
5188 | aud_cntrl_st2, eldv, | |
5189 | aud_cntl_st, IBX_ELD_ADDRESS, | |
5190 | hdmiw_hdmiedid)) | |
5191 | return; | |
5192 | ||
5193 | i = I915_READ(aud_cntrl_st2); | |
5194 | i &= ~eldv; | |
5195 | I915_WRITE(aud_cntrl_st2, i); | |
5196 | ||
5197 | if (!eld[0]) | |
5198 | return; | |
5199 | ||
5200 | i = I915_READ(aud_cntl_st); | |
5201 | i &= ~IBX_ELD_ADDRESS; | |
5202 | I915_WRITE(aud_cntl_st, i); | |
5203 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ | |
5204 | DRM_DEBUG_DRIVER("port num:%d\n", i); | |
5205 | ||
5206 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
5207 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5208 | for (i = 0; i < len; i++) | |
5209 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
5210 | ||
5211 | i = I915_READ(aud_cntrl_st2); | |
5212 | i |= eldv; | |
5213 | I915_WRITE(aud_cntrl_st2, i); | |
5214 | ||
5215 | } | |
5216 | ||
e0dac65e WF |
5217 | static void ironlake_write_eld(struct drm_connector *connector, |
5218 | struct drm_crtc *crtc) | |
5219 | { | |
5220 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5221 | uint8_t *eld = connector->eld; | |
5222 | uint32_t eldv; | |
5223 | uint32_t i; | |
5224 | int len; | |
5225 | int hdmiw_hdmiedid; | |
b6daa025 | 5226 | int aud_config; |
e0dac65e WF |
5227 | int aud_cntl_st; |
5228 | int aud_cntrl_st2; | |
9b138a83 | 5229 | int pipe = to_intel_crtc(crtc)->pipe; |
e0dac65e | 5230 | |
b3f33cbf | 5231 | if (HAS_PCH_IBX(connector->dev)) { |
9b138a83 WX |
5232 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe); |
5233 | aud_config = IBX_AUD_CFG(pipe); | |
5234 | aud_cntl_st = IBX_AUD_CNTL_ST(pipe); | |
1202b4c6 | 5235 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; |
e0dac65e | 5236 | } else { |
9b138a83 WX |
5237 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe); |
5238 | aud_config = CPT_AUD_CFG(pipe); | |
5239 | aud_cntl_st = CPT_AUD_CNTL_ST(pipe); | |
1202b4c6 | 5240 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; |
e0dac65e WF |
5241 | } |
5242 | ||
9b138a83 | 5243 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); |
e0dac65e WF |
5244 | |
5245 | i = I915_READ(aud_cntl_st); | |
9b138a83 | 5246 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ |
e0dac65e WF |
5247 | if (!i) { |
5248 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); | |
5249 | /* operate blindly on all ports */ | |
1202b4c6 WF |
5250 | eldv = IBX_ELD_VALIDB; |
5251 | eldv |= IBX_ELD_VALIDB << 4; | |
5252 | eldv |= IBX_ELD_VALIDB << 8; | |
e0dac65e WF |
5253 | } else { |
5254 | DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i); | |
1202b4c6 | 5255 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
e0dac65e WF |
5256 | } |
5257 | ||
3a9627f4 WF |
5258 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
5259 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
5260 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
b6daa025 WF |
5261 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
5262 | } else | |
5263 | I915_WRITE(aud_config, 0); | |
e0dac65e | 5264 | |
3a9627f4 WF |
5265 | if (intel_eld_uptodate(connector, |
5266 | aud_cntrl_st2, eldv, | |
5267 | aud_cntl_st, IBX_ELD_ADDRESS, | |
5268 | hdmiw_hdmiedid)) | |
5269 | return; | |
5270 | ||
e0dac65e WF |
5271 | i = I915_READ(aud_cntrl_st2); |
5272 | i &= ~eldv; | |
5273 | I915_WRITE(aud_cntrl_st2, i); | |
5274 | ||
5275 | if (!eld[0]) | |
5276 | return; | |
5277 | ||
e0dac65e | 5278 | i = I915_READ(aud_cntl_st); |
1202b4c6 | 5279 | i &= ~IBX_ELD_ADDRESS; |
e0dac65e WF |
5280 | I915_WRITE(aud_cntl_st, i); |
5281 | ||
5282 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
5283 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5284 | for (i = 0; i < len; i++) | |
5285 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
5286 | ||
5287 | i = I915_READ(aud_cntrl_st2); | |
5288 | i |= eldv; | |
5289 | I915_WRITE(aud_cntrl_st2, i); | |
5290 | } | |
5291 | ||
5292 | void intel_write_eld(struct drm_encoder *encoder, | |
5293 | struct drm_display_mode *mode) | |
5294 | { | |
5295 | struct drm_crtc *crtc = encoder->crtc; | |
5296 | struct drm_connector *connector; | |
5297 | struct drm_device *dev = encoder->dev; | |
5298 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5299 | ||
5300 | connector = drm_select_eld(encoder, mode); | |
5301 | if (!connector) | |
5302 | return; | |
5303 | ||
5304 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", | |
5305 | connector->base.id, | |
5306 | drm_get_connector_name(connector), | |
5307 | connector->encoder->base.id, | |
5308 | drm_get_encoder_name(connector->encoder)); | |
5309 | ||
5310 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; | |
5311 | ||
5312 | if (dev_priv->display.write_eld) | |
5313 | dev_priv->display.write_eld(connector, crtc); | |
5314 | } | |
5315 | ||
79e53945 JB |
5316 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
5317 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
5318 | { | |
5319 | struct drm_device *dev = crtc->dev; | |
5320 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5321 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9db4a9c7 | 5322 | int palreg = PALETTE(intel_crtc->pipe); |
79e53945 JB |
5323 | int i; |
5324 | ||
5325 | /* The clocks have to be on to load the palette. */ | |
aed3f09d | 5326 | if (!crtc->enabled || !intel_crtc->active) |
79e53945 JB |
5327 | return; |
5328 | ||
f2b115e6 | 5329 | /* use legacy palette for Ironlake */ |
bad720ff | 5330 | if (HAS_PCH_SPLIT(dev)) |
9db4a9c7 | 5331 | palreg = LGC_PALETTE(intel_crtc->pipe); |
2c07245f | 5332 | |
79e53945 JB |
5333 | for (i = 0; i < 256; i++) { |
5334 | I915_WRITE(palreg + 4 * i, | |
5335 | (intel_crtc->lut_r[i] << 16) | | |
5336 | (intel_crtc->lut_g[i] << 8) | | |
5337 | intel_crtc->lut_b[i]); | |
5338 | } | |
5339 | } | |
5340 | ||
560b85bb CW |
5341 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
5342 | { | |
5343 | struct drm_device *dev = crtc->dev; | |
5344 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5345 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5346 | bool visible = base != 0; | |
5347 | u32 cntl; | |
5348 | ||
5349 | if (intel_crtc->cursor_visible == visible) | |
5350 | return; | |
5351 | ||
9db4a9c7 | 5352 | cntl = I915_READ(_CURACNTR); |
560b85bb CW |
5353 | if (visible) { |
5354 | /* On these chipsets we can only modify the base whilst | |
5355 | * the cursor is disabled. | |
5356 | */ | |
9db4a9c7 | 5357 | I915_WRITE(_CURABASE, base); |
560b85bb CW |
5358 | |
5359 | cntl &= ~(CURSOR_FORMAT_MASK); | |
5360 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ | |
5361 | cntl |= CURSOR_ENABLE | | |
5362 | CURSOR_GAMMA_ENABLE | | |
5363 | CURSOR_FORMAT_ARGB; | |
5364 | } else | |
5365 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
9db4a9c7 | 5366 | I915_WRITE(_CURACNTR, cntl); |
560b85bb CW |
5367 | |
5368 | intel_crtc->cursor_visible = visible; | |
5369 | } | |
5370 | ||
5371 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) | |
5372 | { | |
5373 | struct drm_device *dev = crtc->dev; | |
5374 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5375 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5376 | int pipe = intel_crtc->pipe; | |
5377 | bool visible = base != 0; | |
5378 | ||
5379 | if (intel_crtc->cursor_visible != visible) { | |
548f245b | 5380 | uint32_t cntl = I915_READ(CURCNTR(pipe)); |
560b85bb CW |
5381 | if (base) { |
5382 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
5383 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
5384 | cntl |= pipe << 28; /* Connect to correct pipe */ | |
5385 | } else { | |
5386 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
5387 | cntl |= CURSOR_MODE_DISABLE; | |
5388 | } | |
9db4a9c7 | 5389 | I915_WRITE(CURCNTR(pipe), cntl); |
560b85bb CW |
5390 | |
5391 | intel_crtc->cursor_visible = visible; | |
5392 | } | |
5393 | /* and commit changes on next vblank */ | |
9db4a9c7 | 5394 | I915_WRITE(CURBASE(pipe), base); |
560b85bb CW |
5395 | } |
5396 | ||
65a21cd6 JB |
5397 | static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) |
5398 | { | |
5399 | struct drm_device *dev = crtc->dev; | |
5400 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5401 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5402 | int pipe = intel_crtc->pipe; | |
5403 | bool visible = base != 0; | |
5404 | ||
5405 | if (intel_crtc->cursor_visible != visible) { | |
5406 | uint32_t cntl = I915_READ(CURCNTR_IVB(pipe)); | |
5407 | if (base) { | |
5408 | cntl &= ~CURSOR_MODE; | |
5409 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
5410 | } else { | |
5411 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
5412 | cntl |= CURSOR_MODE_DISABLE; | |
5413 | } | |
5414 | I915_WRITE(CURCNTR_IVB(pipe), cntl); | |
5415 | ||
5416 | intel_crtc->cursor_visible = visible; | |
5417 | } | |
5418 | /* and commit changes on next vblank */ | |
5419 | I915_WRITE(CURBASE_IVB(pipe), base); | |
5420 | } | |
5421 | ||
cda4b7d3 | 5422 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
5423 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
5424 | bool on) | |
cda4b7d3 CW |
5425 | { |
5426 | struct drm_device *dev = crtc->dev; | |
5427 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5428 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5429 | int pipe = intel_crtc->pipe; | |
5430 | int x = intel_crtc->cursor_x; | |
5431 | int y = intel_crtc->cursor_y; | |
560b85bb | 5432 | u32 base, pos; |
cda4b7d3 CW |
5433 | bool visible; |
5434 | ||
5435 | pos = 0; | |
5436 | ||
6b383a7f | 5437 | if (on && crtc->enabled && crtc->fb) { |
cda4b7d3 CW |
5438 | base = intel_crtc->cursor_addr; |
5439 | if (x > (int) crtc->fb->width) | |
5440 | base = 0; | |
5441 | ||
5442 | if (y > (int) crtc->fb->height) | |
5443 | base = 0; | |
5444 | } else | |
5445 | base = 0; | |
5446 | ||
5447 | if (x < 0) { | |
5448 | if (x + intel_crtc->cursor_width < 0) | |
5449 | base = 0; | |
5450 | ||
5451 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
5452 | x = -x; | |
5453 | } | |
5454 | pos |= x << CURSOR_X_SHIFT; | |
5455 | ||
5456 | if (y < 0) { | |
5457 | if (y + intel_crtc->cursor_height < 0) | |
5458 | base = 0; | |
5459 | ||
5460 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
5461 | y = -y; | |
5462 | } | |
5463 | pos |= y << CURSOR_Y_SHIFT; | |
5464 | ||
5465 | visible = base != 0; | |
560b85bb | 5466 | if (!visible && !intel_crtc->cursor_visible) |
cda4b7d3 CW |
5467 | return; |
5468 | ||
0cd83aa9 | 5469 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
65a21cd6 JB |
5470 | I915_WRITE(CURPOS_IVB(pipe), pos); |
5471 | ivb_update_cursor(crtc, base); | |
5472 | } else { | |
5473 | I915_WRITE(CURPOS(pipe), pos); | |
5474 | if (IS_845G(dev) || IS_I865G(dev)) | |
5475 | i845_update_cursor(crtc, base); | |
5476 | else | |
5477 | i9xx_update_cursor(crtc, base); | |
5478 | } | |
cda4b7d3 CW |
5479 | } |
5480 | ||
79e53945 | 5481 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
05394f39 | 5482 | struct drm_file *file, |
79e53945 JB |
5483 | uint32_t handle, |
5484 | uint32_t width, uint32_t height) | |
5485 | { | |
5486 | struct drm_device *dev = crtc->dev; | |
5487 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5488 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
05394f39 | 5489 | struct drm_i915_gem_object *obj; |
cda4b7d3 | 5490 | uint32_t addr; |
3f8bc370 | 5491 | int ret; |
79e53945 | 5492 | |
79e53945 JB |
5493 | /* if we want to turn off the cursor ignore width and height */ |
5494 | if (!handle) { | |
28c97730 | 5495 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 | 5496 | addr = 0; |
05394f39 | 5497 | obj = NULL; |
5004417d | 5498 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 5499 | goto finish; |
79e53945 JB |
5500 | } |
5501 | ||
5502 | /* Currently we only support 64x64 cursors */ | |
5503 | if (width != 64 || height != 64) { | |
5504 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
5505 | return -EINVAL; | |
5506 | } | |
5507 | ||
05394f39 | 5508 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
c8725226 | 5509 | if (&obj->base == NULL) |
79e53945 JB |
5510 | return -ENOENT; |
5511 | ||
05394f39 | 5512 | if (obj->base.size < width * height * 4) { |
79e53945 | 5513 | DRM_ERROR("buffer is to small\n"); |
34b8686e DA |
5514 | ret = -ENOMEM; |
5515 | goto fail; | |
79e53945 JB |
5516 | } |
5517 | ||
71acb5eb | 5518 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 5519 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 5520 | if (!dev_priv->info->cursor_needs_physical) { |
d9e86c0e CW |
5521 | if (obj->tiling_mode) { |
5522 | DRM_ERROR("cursor cannot be tiled\n"); | |
5523 | ret = -EINVAL; | |
5524 | goto fail_locked; | |
5525 | } | |
5526 | ||
2da3b9b9 | 5527 | ret = i915_gem_object_pin_to_display_plane(obj, 0, NULL); |
e7b526bb CW |
5528 | if (ret) { |
5529 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
2da3b9b9 | 5530 | goto fail_locked; |
e7b526bb CW |
5531 | } |
5532 | ||
d9e86c0e CW |
5533 | ret = i915_gem_object_put_fence(obj); |
5534 | if (ret) { | |
2da3b9b9 | 5535 | DRM_ERROR("failed to release fence for cursor"); |
d9e86c0e CW |
5536 | goto fail_unpin; |
5537 | } | |
5538 | ||
05394f39 | 5539 | addr = obj->gtt_offset; |
71acb5eb | 5540 | } else { |
6eeefaf3 | 5541 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
05394f39 | 5542 | ret = i915_gem_attach_phys_object(dev, obj, |
6eeefaf3 CW |
5543 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
5544 | align); | |
71acb5eb DA |
5545 | if (ret) { |
5546 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 5547 | goto fail_locked; |
71acb5eb | 5548 | } |
05394f39 | 5549 | addr = obj->phys_obj->handle->busaddr; |
3f8bc370 KH |
5550 | } |
5551 | ||
a6c45cf0 | 5552 | if (IS_GEN2(dev)) |
14b60391 JB |
5553 | I915_WRITE(CURSIZE, (height << 12) | width); |
5554 | ||
3f8bc370 | 5555 | finish: |
3f8bc370 | 5556 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 5557 | if (dev_priv->info->cursor_needs_physical) { |
05394f39 | 5558 | if (intel_crtc->cursor_bo != obj) |
71acb5eb DA |
5559 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
5560 | } else | |
5561 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
05394f39 | 5562 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
3f8bc370 | 5563 | } |
80824003 | 5564 | |
7f9872e0 | 5565 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
5566 | |
5567 | intel_crtc->cursor_addr = addr; | |
05394f39 | 5568 | intel_crtc->cursor_bo = obj; |
cda4b7d3 CW |
5569 | intel_crtc->cursor_width = width; |
5570 | intel_crtc->cursor_height = height; | |
5571 | ||
6b383a7f | 5572 | intel_crtc_update_cursor(crtc, true); |
3f8bc370 | 5573 | |
79e53945 | 5574 | return 0; |
e7b526bb | 5575 | fail_unpin: |
05394f39 | 5576 | i915_gem_object_unpin(obj); |
7f9872e0 | 5577 | fail_locked: |
34b8686e | 5578 | mutex_unlock(&dev->struct_mutex); |
bc9025bd | 5579 | fail: |
05394f39 | 5580 | drm_gem_object_unreference_unlocked(&obj->base); |
34b8686e | 5581 | return ret; |
79e53945 JB |
5582 | } |
5583 | ||
5584 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
5585 | { | |
79e53945 | 5586 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 5587 | |
cda4b7d3 CW |
5588 | intel_crtc->cursor_x = x; |
5589 | intel_crtc->cursor_y = y; | |
652c393a | 5590 | |
6b383a7f | 5591 | intel_crtc_update_cursor(crtc, true); |
79e53945 JB |
5592 | |
5593 | return 0; | |
5594 | } | |
5595 | ||
5596 | /** Sets the color ramps on behalf of RandR */ | |
5597 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
5598 | u16 blue, int regno) | |
5599 | { | |
5600 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5601 | ||
5602 | intel_crtc->lut_r[regno] = red >> 8; | |
5603 | intel_crtc->lut_g[regno] = green >> 8; | |
5604 | intel_crtc->lut_b[regno] = blue >> 8; | |
5605 | } | |
5606 | ||
b8c00ac5 DA |
5607 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
5608 | u16 *blue, int regno) | |
5609 | { | |
5610 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5611 | ||
5612 | *red = intel_crtc->lut_r[regno] << 8; | |
5613 | *green = intel_crtc->lut_g[regno] << 8; | |
5614 | *blue = intel_crtc->lut_b[regno] << 8; | |
5615 | } | |
5616 | ||
79e53945 | 5617 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 5618 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 5619 | { |
7203425a | 5620 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 5621 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 5622 | |
7203425a | 5623 | for (i = start; i < end; i++) { |
79e53945 JB |
5624 | intel_crtc->lut_r[i] = red[i] >> 8; |
5625 | intel_crtc->lut_g[i] = green[i] >> 8; | |
5626 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
5627 | } | |
5628 | ||
5629 | intel_crtc_load_lut(crtc); | |
5630 | } | |
5631 | ||
5632 | /** | |
5633 | * Get a pipe with a simple mode set on it for doing load-based monitor | |
5634 | * detection. | |
5635 | * | |
5636 | * It will be up to the load-detect code to adjust the pipe as appropriate for | |
c751ce4f | 5637 | * its requirements. The pipe will be connected to no other encoders. |
79e53945 | 5638 | * |
c751ce4f | 5639 | * Currently this code will only succeed if there is a pipe with no encoders |
79e53945 JB |
5640 | * configured for it. In the future, it could choose to temporarily disable |
5641 | * some outputs to free up a pipe for its use. | |
5642 | * | |
5643 | * \return crtc, or NULL if no pipes are available. | |
5644 | */ | |
5645 | ||
5646 | /* VESA 640x480x72Hz mode to set on the pipe */ | |
5647 | static struct drm_display_mode load_detect_mode = { | |
5648 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
5649 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
5650 | }; | |
5651 | ||
d2dff872 CW |
5652 | static struct drm_framebuffer * |
5653 | intel_framebuffer_create(struct drm_device *dev, | |
308e5bcb | 5654 | struct drm_mode_fb_cmd2 *mode_cmd, |
d2dff872 CW |
5655 | struct drm_i915_gem_object *obj) |
5656 | { | |
5657 | struct intel_framebuffer *intel_fb; | |
5658 | int ret; | |
5659 | ||
5660 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
5661 | if (!intel_fb) { | |
5662 | drm_gem_object_unreference_unlocked(&obj->base); | |
5663 | return ERR_PTR(-ENOMEM); | |
5664 | } | |
5665 | ||
5666 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
5667 | if (ret) { | |
5668 | drm_gem_object_unreference_unlocked(&obj->base); | |
5669 | kfree(intel_fb); | |
5670 | return ERR_PTR(ret); | |
5671 | } | |
5672 | ||
5673 | return &intel_fb->base; | |
5674 | } | |
5675 | ||
5676 | static u32 | |
5677 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
5678 | { | |
5679 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
5680 | return ALIGN(pitch, 64); | |
5681 | } | |
5682 | ||
5683 | static u32 | |
5684 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
5685 | { | |
5686 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
5687 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); | |
5688 | } | |
5689 | ||
5690 | static struct drm_framebuffer * | |
5691 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
5692 | struct drm_display_mode *mode, | |
5693 | int depth, int bpp) | |
5694 | { | |
5695 | struct drm_i915_gem_object *obj; | |
308e5bcb | 5696 | struct drm_mode_fb_cmd2 mode_cmd; |
d2dff872 CW |
5697 | |
5698 | obj = i915_gem_alloc_object(dev, | |
5699 | intel_framebuffer_size_for_mode(mode, bpp)); | |
5700 | if (obj == NULL) | |
5701 | return ERR_PTR(-ENOMEM); | |
5702 | ||
5703 | mode_cmd.width = mode->hdisplay; | |
5704 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
5705 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
5706 | bpp); | |
5ca0c34a | 5707 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
5708 | |
5709 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
5710 | } | |
5711 | ||
5712 | static struct drm_framebuffer * | |
5713 | mode_fits_in_fbdev(struct drm_device *dev, | |
5714 | struct drm_display_mode *mode) | |
5715 | { | |
5716 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5717 | struct drm_i915_gem_object *obj; | |
5718 | struct drm_framebuffer *fb; | |
5719 | ||
5720 | if (dev_priv->fbdev == NULL) | |
5721 | return NULL; | |
5722 | ||
5723 | obj = dev_priv->fbdev->ifb.obj; | |
5724 | if (obj == NULL) | |
5725 | return NULL; | |
5726 | ||
5727 | fb = &dev_priv->fbdev->ifb.base; | |
01f2c773 VS |
5728 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
5729 | fb->bits_per_pixel)) | |
d2dff872 CW |
5730 | return NULL; |
5731 | ||
01f2c773 | 5732 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
5733 | return NULL; |
5734 | ||
5735 | return fb; | |
5736 | } | |
5737 | ||
d2434ab7 | 5738 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 5739 | struct drm_display_mode *mode, |
8261b191 | 5740 | struct intel_load_detect_pipe *old) |
79e53945 JB |
5741 | { |
5742 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
5743 | struct intel_encoder *intel_encoder = |
5744 | intel_attached_encoder(connector); | |
79e53945 | 5745 | struct drm_crtc *possible_crtc; |
4ef69c7a | 5746 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
5747 | struct drm_crtc *crtc = NULL; |
5748 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 5749 | struct drm_framebuffer *fb; |
79e53945 JB |
5750 | int i = -1; |
5751 | ||
d2dff872 CW |
5752 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
5753 | connector->base.id, drm_get_connector_name(connector), | |
5754 | encoder->base.id, drm_get_encoder_name(encoder)); | |
5755 | ||
79e53945 JB |
5756 | /* |
5757 | * Algorithm gets a little messy: | |
7a5e4805 | 5758 | * |
79e53945 JB |
5759 | * - if the connector already has an assigned crtc, use it (but make |
5760 | * sure it's on first) | |
7a5e4805 | 5761 | * |
79e53945 JB |
5762 | * - try to find the first unused crtc that can drive this connector, |
5763 | * and use that if we find one | |
79e53945 JB |
5764 | */ |
5765 | ||
5766 | /* See if we already have a CRTC for this connector */ | |
5767 | if (encoder->crtc) { | |
5768 | crtc = encoder->crtc; | |
8261b191 | 5769 | |
24218aac | 5770 | old->dpms_mode = connector->dpms; |
8261b191 CW |
5771 | old->load_detect_temp = false; |
5772 | ||
5773 | /* Make sure the crtc and connector are running */ | |
24218aac DV |
5774 | if (connector->dpms != DRM_MODE_DPMS_ON) |
5775 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); | |
8261b191 | 5776 | |
7173188d | 5777 | return true; |
79e53945 JB |
5778 | } |
5779 | ||
5780 | /* Find an unused one (if possible) */ | |
5781 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
5782 | i++; | |
5783 | if (!(encoder->possible_crtcs & (1 << i))) | |
5784 | continue; | |
5785 | if (!possible_crtc->enabled) { | |
5786 | crtc = possible_crtc; | |
5787 | break; | |
5788 | } | |
79e53945 JB |
5789 | } |
5790 | ||
5791 | /* | |
5792 | * If we didn't find an unused CRTC, don't use any. | |
5793 | */ | |
5794 | if (!crtc) { | |
7173188d CW |
5795 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
5796 | return false; | |
79e53945 JB |
5797 | } |
5798 | ||
5799 | encoder->crtc = crtc; | |
c1c43977 | 5800 | connector->encoder = encoder; |
79e53945 JB |
5801 | |
5802 | intel_crtc = to_intel_crtc(crtc); | |
24218aac | 5803 | old->dpms_mode = connector->dpms; |
8261b191 | 5804 | old->load_detect_temp = true; |
d2dff872 | 5805 | old->release_fb = NULL; |
79e53945 | 5806 | |
6492711d CW |
5807 | if (!mode) |
5808 | mode = &load_detect_mode; | |
79e53945 | 5809 | |
d2dff872 CW |
5810 | /* We need a framebuffer large enough to accommodate all accesses |
5811 | * that the plane may generate whilst we perform load detection. | |
5812 | * We can not rely on the fbcon either being present (we get called | |
5813 | * during its initialisation to detect all boot displays, or it may | |
5814 | * not even exist) or that it is large enough to satisfy the | |
5815 | * requested mode. | |
5816 | */ | |
94352cf9 DV |
5817 | fb = mode_fits_in_fbdev(dev, mode); |
5818 | if (fb == NULL) { | |
d2dff872 | 5819 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 DV |
5820 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
5821 | old->release_fb = fb; | |
d2dff872 CW |
5822 | } else |
5823 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 5824 | if (IS_ERR(fb)) { |
d2dff872 | 5825 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
24218aac | 5826 | goto fail; |
79e53945 | 5827 | } |
79e53945 | 5828 | |
94352cf9 | 5829 | if (!intel_set_mode(crtc, mode, 0, 0, fb)) { |
6492711d | 5830 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
5831 | if (old->release_fb) |
5832 | old->release_fb->funcs->destroy(old->release_fb); | |
24218aac | 5833 | goto fail; |
79e53945 | 5834 | } |
7173188d | 5835 | |
79e53945 | 5836 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 5837 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
79e53945 | 5838 | |
7173188d | 5839 | return true; |
24218aac DV |
5840 | fail: |
5841 | connector->encoder = NULL; | |
5842 | encoder->crtc = NULL; | |
24218aac | 5843 | return false; |
79e53945 JB |
5844 | } |
5845 | ||
d2434ab7 | 5846 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
8261b191 | 5847 | struct intel_load_detect_pipe *old) |
79e53945 | 5848 | { |
d2434ab7 DV |
5849 | struct intel_encoder *intel_encoder = |
5850 | intel_attached_encoder(connector); | |
4ef69c7a | 5851 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 | 5852 | struct drm_device *dev = encoder->dev; |
79e53945 | 5853 | |
d2dff872 CW |
5854 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
5855 | connector->base.id, drm_get_connector_name(connector), | |
5856 | encoder->base.id, drm_get_encoder_name(encoder)); | |
5857 | ||
8261b191 | 5858 | if (old->load_detect_temp) { |
c1c43977 | 5859 | connector->encoder = NULL; |
24218aac | 5860 | encoder->crtc = NULL; |
79e53945 | 5861 | drm_helper_disable_unused_functions(dev); |
d2dff872 CW |
5862 | |
5863 | if (old->release_fb) | |
5864 | old->release_fb->funcs->destroy(old->release_fb); | |
5865 | ||
0622a53c | 5866 | return; |
79e53945 JB |
5867 | } |
5868 | ||
c751ce4f | 5869 | /* Switch crtc and encoder back off if necessary */ |
24218aac DV |
5870 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
5871 | connector->funcs->dpms(connector, old->dpms_mode); | |
79e53945 JB |
5872 | } |
5873 | ||
5874 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
5875 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
5876 | { | |
5877 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5878 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5879 | int pipe = intel_crtc->pipe; | |
548f245b | 5880 | u32 dpll = I915_READ(DPLL(pipe)); |
79e53945 JB |
5881 | u32 fp; |
5882 | intel_clock_t clock; | |
5883 | ||
5884 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
39adb7a5 | 5885 | fp = I915_READ(FP0(pipe)); |
79e53945 | 5886 | else |
39adb7a5 | 5887 | fp = I915_READ(FP1(pipe)); |
79e53945 JB |
5888 | |
5889 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
5890 | if (IS_PINEVIEW(dev)) { |
5891 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
5892 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
5893 | } else { |
5894 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
5895 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
5896 | } | |
5897 | ||
a6c45cf0 | 5898 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
5899 | if (IS_PINEVIEW(dev)) |
5900 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
5901 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
5902 | else |
5903 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
5904 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
5905 | ||
5906 | switch (dpll & DPLL_MODE_MASK) { | |
5907 | case DPLLB_MODE_DAC_SERIAL: | |
5908 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
5909 | 5 : 10; | |
5910 | break; | |
5911 | case DPLLB_MODE_LVDS: | |
5912 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
5913 | 7 : 14; | |
5914 | break; | |
5915 | default: | |
28c97730 | 5916 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
5917 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
5918 | return 0; | |
5919 | } | |
5920 | ||
5921 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 5922 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
5923 | } else { |
5924 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
5925 | ||
5926 | if (is_lvds) { | |
5927 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
5928 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
5929 | clock.p2 = 14; | |
5930 | ||
5931 | if ((dpll & PLL_REF_INPUT_MASK) == | |
5932 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
5933 | /* XXX: might not be 66MHz */ | |
2177832f | 5934 | intel_clock(dev, 66000, &clock); |
79e53945 | 5935 | } else |
2177832f | 5936 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
5937 | } else { |
5938 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
5939 | clock.p1 = 2; | |
5940 | else { | |
5941 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
5942 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
5943 | } | |
5944 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
5945 | clock.p2 = 4; | |
5946 | else | |
5947 | clock.p2 = 2; | |
5948 | ||
2177832f | 5949 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
5950 | } |
5951 | } | |
5952 | ||
5953 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
5954 | * i830PllIsValid() because it relies on the xf86_config connector | |
5955 | * configuration being accurate, which it isn't necessarily. | |
5956 | */ | |
5957 | ||
5958 | return clock.dot; | |
5959 | } | |
5960 | ||
5961 | /** Returns the currently programmed mode of the given pipe. */ | |
5962 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
5963 | struct drm_crtc *crtc) | |
5964 | { | |
548f245b | 5965 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
5966 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5967 | int pipe = intel_crtc->pipe; | |
5968 | struct drm_display_mode *mode; | |
548f245b JB |
5969 | int htot = I915_READ(HTOTAL(pipe)); |
5970 | int hsync = I915_READ(HSYNC(pipe)); | |
5971 | int vtot = I915_READ(VTOTAL(pipe)); | |
5972 | int vsync = I915_READ(VSYNC(pipe)); | |
79e53945 JB |
5973 | |
5974 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
5975 | if (!mode) | |
5976 | return NULL; | |
5977 | ||
5978 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
5979 | mode->hdisplay = (htot & 0xffff) + 1; | |
5980 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
5981 | mode->hsync_start = (hsync & 0xffff) + 1; | |
5982 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
5983 | mode->vdisplay = (vtot & 0xffff) + 1; | |
5984 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
5985 | mode->vsync_start = (vsync & 0xffff) + 1; | |
5986 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
5987 | ||
5988 | drm_mode_set_name(mode); | |
79e53945 JB |
5989 | |
5990 | return mode; | |
5991 | } | |
5992 | ||
3dec0095 | 5993 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
652c393a JB |
5994 | { |
5995 | struct drm_device *dev = crtc->dev; | |
5996 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5997 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5998 | int pipe = intel_crtc->pipe; | |
dbdc6479 JB |
5999 | int dpll_reg = DPLL(pipe); |
6000 | int dpll; | |
652c393a | 6001 | |
bad720ff | 6002 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
6003 | return; |
6004 | ||
6005 | if (!dev_priv->lvds_downclock_avail) | |
6006 | return; | |
6007 | ||
dbdc6479 | 6008 | dpll = I915_READ(dpll_reg); |
652c393a | 6009 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
44d98a61 | 6010 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a | 6011 | |
8ac5a6d5 | 6012 | assert_panel_unlocked(dev_priv, pipe); |
652c393a JB |
6013 | |
6014 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
6015 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 6016 | intel_wait_for_vblank(dev, pipe); |
dbdc6479 | 6017 | |
652c393a JB |
6018 | dpll = I915_READ(dpll_reg); |
6019 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 6020 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a | 6021 | } |
652c393a JB |
6022 | } |
6023 | ||
6024 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
6025 | { | |
6026 | struct drm_device *dev = crtc->dev; | |
6027 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6028 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
652c393a | 6029 | |
bad720ff | 6030 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
6031 | return; |
6032 | ||
6033 | if (!dev_priv->lvds_downclock_avail) | |
6034 | return; | |
6035 | ||
6036 | /* | |
6037 | * Since this is called by a timer, we should never get here in | |
6038 | * the manual case. | |
6039 | */ | |
6040 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
dc257cf1 DV |
6041 | int pipe = intel_crtc->pipe; |
6042 | int dpll_reg = DPLL(pipe); | |
6043 | int dpll; | |
f6e5b160 | 6044 | |
44d98a61 | 6045 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a | 6046 | |
8ac5a6d5 | 6047 | assert_panel_unlocked(dev_priv, pipe); |
652c393a | 6048 | |
dc257cf1 | 6049 | dpll = I915_READ(dpll_reg); |
652c393a JB |
6050 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
6051 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 6052 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
6053 | dpll = I915_READ(dpll_reg); |
6054 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 6055 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
6056 | } |
6057 | ||
6058 | } | |
6059 | ||
f047e395 CW |
6060 | void intel_mark_busy(struct drm_device *dev) |
6061 | { | |
f047e395 CW |
6062 | i915_update_gfx_val(dev->dev_private); |
6063 | } | |
6064 | ||
6065 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 6066 | { |
f047e395 CW |
6067 | } |
6068 | ||
6069 | void intel_mark_fb_busy(struct drm_i915_gem_object *obj) | |
6070 | { | |
6071 | struct drm_device *dev = obj->base.dev; | |
652c393a | 6072 | struct drm_crtc *crtc; |
652c393a JB |
6073 | |
6074 | if (!i915_powersave) | |
6075 | return; | |
6076 | ||
652c393a | 6077 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
652c393a JB |
6078 | if (!crtc->fb) |
6079 | continue; | |
6080 | ||
f047e395 CW |
6081 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
6082 | intel_increase_pllclock(crtc); | |
652c393a | 6083 | } |
652c393a JB |
6084 | } |
6085 | ||
f047e395 | 6086 | void intel_mark_fb_idle(struct drm_i915_gem_object *obj) |
652c393a | 6087 | { |
f047e395 CW |
6088 | struct drm_device *dev = obj->base.dev; |
6089 | struct drm_crtc *crtc; | |
652c393a | 6090 | |
f047e395 | 6091 | if (!i915_powersave) |
acb87dfb CW |
6092 | return; |
6093 | ||
652c393a JB |
6094 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
6095 | if (!crtc->fb) | |
6096 | continue; | |
6097 | ||
f047e395 CW |
6098 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
6099 | intel_decrease_pllclock(crtc); | |
652c393a JB |
6100 | } |
6101 | } | |
6102 | ||
79e53945 JB |
6103 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
6104 | { | |
6105 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
6106 | struct drm_device *dev = crtc->dev; |
6107 | struct intel_unpin_work *work; | |
6108 | unsigned long flags; | |
6109 | ||
6110 | spin_lock_irqsave(&dev->event_lock, flags); | |
6111 | work = intel_crtc->unpin_work; | |
6112 | intel_crtc->unpin_work = NULL; | |
6113 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6114 | ||
6115 | if (work) { | |
6116 | cancel_work_sync(&work->work); | |
6117 | kfree(work); | |
6118 | } | |
79e53945 JB |
6119 | |
6120 | drm_crtc_cleanup(crtc); | |
67e77c5a | 6121 | |
79e53945 JB |
6122 | kfree(intel_crtc); |
6123 | } | |
6124 | ||
6b95a207 KH |
6125 | static void intel_unpin_work_fn(struct work_struct *__work) |
6126 | { | |
6127 | struct intel_unpin_work *work = | |
6128 | container_of(__work, struct intel_unpin_work, work); | |
6129 | ||
6130 | mutex_lock(&work->dev->struct_mutex); | |
1690e1eb | 6131 | intel_unpin_fb_obj(work->old_fb_obj); |
05394f39 CW |
6132 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
6133 | drm_gem_object_unreference(&work->old_fb_obj->base); | |
d9e86c0e | 6134 | |
7782de3b | 6135 | intel_update_fbc(work->dev); |
6b95a207 KH |
6136 | mutex_unlock(&work->dev->struct_mutex); |
6137 | kfree(work); | |
6138 | } | |
6139 | ||
1afe3e9d | 6140 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 6141 | struct drm_crtc *crtc) |
6b95a207 KH |
6142 | { |
6143 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6b95a207 KH |
6144 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6145 | struct intel_unpin_work *work; | |
05394f39 | 6146 | struct drm_i915_gem_object *obj; |
6b95a207 | 6147 | struct drm_pending_vblank_event *e; |
49b14a5c | 6148 | struct timeval tnow, tvbl; |
6b95a207 KH |
6149 | unsigned long flags; |
6150 | ||
6151 | /* Ignore early vblank irqs */ | |
6152 | if (intel_crtc == NULL) | |
6153 | return; | |
6154 | ||
49b14a5c MK |
6155 | do_gettimeofday(&tnow); |
6156 | ||
6b95a207 KH |
6157 | spin_lock_irqsave(&dev->event_lock, flags); |
6158 | work = intel_crtc->unpin_work; | |
6159 | if (work == NULL || !work->pending) { | |
6160 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6161 | return; | |
6162 | } | |
6163 | ||
6164 | intel_crtc->unpin_work = NULL; | |
6b95a207 KH |
6165 | |
6166 | if (work->event) { | |
6167 | e = work->event; | |
49b14a5c | 6168 | e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl); |
0af7e4df MK |
6169 | |
6170 | /* Called before vblank count and timestamps have | |
6171 | * been updated for the vblank interval of flip | |
6172 | * completion? Need to increment vblank count and | |
6173 | * add one videorefresh duration to returned timestamp | |
49b14a5c MK |
6174 | * to account for this. We assume this happened if we |
6175 | * get called over 0.9 frame durations after the last | |
6176 | * timestamped vblank. | |
6177 | * | |
6178 | * This calculation can not be used with vrefresh rates | |
6179 | * below 5Hz (10Hz to be on the safe side) without | |
6180 | * promoting to 64 integers. | |
0af7e4df | 6181 | */ |
49b14a5c MK |
6182 | if (10 * (timeval_to_ns(&tnow) - timeval_to_ns(&tvbl)) > |
6183 | 9 * crtc->framedur_ns) { | |
0af7e4df | 6184 | e->event.sequence++; |
49b14a5c MK |
6185 | tvbl = ns_to_timeval(timeval_to_ns(&tvbl) + |
6186 | crtc->framedur_ns); | |
0af7e4df MK |
6187 | } |
6188 | ||
49b14a5c MK |
6189 | e->event.tv_sec = tvbl.tv_sec; |
6190 | e->event.tv_usec = tvbl.tv_usec; | |
0af7e4df | 6191 | |
6b95a207 KH |
6192 | list_add_tail(&e->base.link, |
6193 | &e->base.file_priv->event_list); | |
6194 | wake_up_interruptible(&e->base.file_priv->event_wait); | |
6195 | } | |
6196 | ||
0af7e4df MK |
6197 | drm_vblank_put(dev, intel_crtc->pipe); |
6198 | ||
6b95a207 KH |
6199 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6200 | ||
05394f39 | 6201 | obj = work->old_fb_obj; |
d9e86c0e | 6202 | |
e59f2bac | 6203 | atomic_clear_mask(1 << intel_crtc->plane, |
05394f39 CW |
6204 | &obj->pending_flip.counter); |
6205 | if (atomic_read(&obj->pending_flip) == 0) | |
f787a5f5 | 6206 | wake_up(&dev_priv->pending_flip_queue); |
d9e86c0e | 6207 | |
6b95a207 | 6208 | schedule_work(&work->work); |
e5510fac JB |
6209 | |
6210 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); | |
6b95a207 KH |
6211 | } |
6212 | ||
1afe3e9d JB |
6213 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
6214 | { | |
6215 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6216 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
6217 | ||
49b14a5c | 6218 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
6219 | } |
6220 | ||
6221 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
6222 | { | |
6223 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6224 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; | |
6225 | ||
49b14a5c | 6226 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
6227 | } |
6228 | ||
6b95a207 KH |
6229 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
6230 | { | |
6231 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6232 | struct intel_crtc *intel_crtc = | |
6233 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
6234 | unsigned long flags; | |
6235 | ||
6236 | spin_lock_irqsave(&dev->event_lock, flags); | |
de3f440f | 6237 | if (intel_crtc->unpin_work) { |
4e5359cd SF |
6238 | if ((++intel_crtc->unpin_work->pending) > 1) |
6239 | DRM_ERROR("Prepared flip multiple times\n"); | |
de3f440f JB |
6240 | } else { |
6241 | DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n"); | |
6242 | } | |
6b95a207 KH |
6243 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6244 | } | |
6245 | ||
8c9f3aaf JB |
6246 | static int intel_gen2_queue_flip(struct drm_device *dev, |
6247 | struct drm_crtc *crtc, | |
6248 | struct drm_framebuffer *fb, | |
6249 | struct drm_i915_gem_object *obj) | |
6250 | { | |
6251 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6252 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 6253 | u32 flip_mask; |
6d90c952 | 6254 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6255 | int ret; |
6256 | ||
6d90c952 | 6257 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6258 | if (ret) |
83d4092b | 6259 | goto err; |
8c9f3aaf | 6260 | |
6d90c952 | 6261 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 6262 | if (ret) |
83d4092b | 6263 | goto err_unpin; |
8c9f3aaf JB |
6264 | |
6265 | /* Can't queue multiple flips, so wait for the previous | |
6266 | * one to finish before executing the next. | |
6267 | */ | |
6268 | if (intel_crtc->plane) | |
6269 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
6270 | else | |
6271 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
6272 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
6273 | intel_ring_emit(ring, MI_NOOP); | |
6274 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
6275 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6276 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 6277 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
6278 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
6279 | intel_ring_advance(ring); | |
83d4092b CW |
6280 | return 0; |
6281 | ||
6282 | err_unpin: | |
6283 | intel_unpin_fb_obj(obj); | |
6284 | err: | |
8c9f3aaf JB |
6285 | return ret; |
6286 | } | |
6287 | ||
6288 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
6289 | struct drm_crtc *crtc, | |
6290 | struct drm_framebuffer *fb, | |
6291 | struct drm_i915_gem_object *obj) | |
6292 | { | |
6293 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6294 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 6295 | u32 flip_mask; |
6d90c952 | 6296 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6297 | int ret; |
6298 | ||
6d90c952 | 6299 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6300 | if (ret) |
83d4092b | 6301 | goto err; |
8c9f3aaf | 6302 | |
6d90c952 | 6303 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 6304 | if (ret) |
83d4092b | 6305 | goto err_unpin; |
8c9f3aaf JB |
6306 | |
6307 | if (intel_crtc->plane) | |
6308 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
6309 | else | |
6310 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
6311 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
6312 | intel_ring_emit(ring, MI_NOOP); | |
6313 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
6314 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6315 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 6316 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
6317 | intel_ring_emit(ring, MI_NOOP); |
6318 | ||
6319 | intel_ring_advance(ring); | |
83d4092b CW |
6320 | return 0; |
6321 | ||
6322 | err_unpin: | |
6323 | intel_unpin_fb_obj(obj); | |
6324 | err: | |
8c9f3aaf JB |
6325 | return ret; |
6326 | } | |
6327 | ||
6328 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
6329 | struct drm_crtc *crtc, | |
6330 | struct drm_framebuffer *fb, | |
6331 | struct drm_i915_gem_object *obj) | |
6332 | { | |
6333 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6334 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6335 | uint32_t pf, pipesrc; | |
6d90c952 | 6336 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6337 | int ret; |
6338 | ||
6d90c952 | 6339 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6340 | if (ret) |
83d4092b | 6341 | goto err; |
8c9f3aaf | 6342 | |
6d90c952 | 6343 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 6344 | if (ret) |
83d4092b | 6345 | goto err_unpin; |
8c9f3aaf JB |
6346 | |
6347 | /* i965+ uses the linear or tiled offsets from the | |
6348 | * Display Registers (which do not change across a page-flip) | |
6349 | * so we need only reprogram the base address. | |
6350 | */ | |
6d90c952 DV |
6351 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6352 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6353 | intel_ring_emit(ring, fb->pitches[0]); | |
c2c75131 DV |
6354 | intel_ring_emit(ring, |
6355 | (obj->gtt_offset + intel_crtc->dspaddr_offset) | | |
6356 | obj->tiling_mode); | |
8c9f3aaf JB |
6357 | |
6358 | /* XXX Enabling the panel-fitter across page-flip is so far | |
6359 | * untested on non-native modes, so ignore it for now. | |
6360 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
6361 | */ | |
6362 | pf = 0; | |
6363 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 DV |
6364 | intel_ring_emit(ring, pf | pipesrc); |
6365 | intel_ring_advance(ring); | |
83d4092b CW |
6366 | return 0; |
6367 | ||
6368 | err_unpin: | |
6369 | intel_unpin_fb_obj(obj); | |
6370 | err: | |
8c9f3aaf JB |
6371 | return ret; |
6372 | } | |
6373 | ||
6374 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
6375 | struct drm_crtc *crtc, | |
6376 | struct drm_framebuffer *fb, | |
6377 | struct drm_i915_gem_object *obj) | |
6378 | { | |
6379 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6380 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6d90c952 | 6381 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6382 | uint32_t pf, pipesrc; |
6383 | int ret; | |
6384 | ||
6d90c952 | 6385 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6386 | if (ret) |
83d4092b | 6387 | goto err; |
8c9f3aaf | 6388 | |
6d90c952 | 6389 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 6390 | if (ret) |
83d4092b | 6391 | goto err_unpin; |
8c9f3aaf | 6392 | |
6d90c952 DV |
6393 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6394 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6395 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
c2c75131 | 6396 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
8c9f3aaf | 6397 | |
dc257cf1 DV |
6398 | /* Contrary to the suggestions in the documentation, |
6399 | * "Enable Panel Fitter" does not seem to be required when page | |
6400 | * flipping with a non-native mode, and worse causes a normal | |
6401 | * modeset to fail. | |
6402 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
6403 | */ | |
6404 | pf = 0; | |
8c9f3aaf | 6405 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 DV |
6406 | intel_ring_emit(ring, pf | pipesrc); |
6407 | intel_ring_advance(ring); | |
83d4092b CW |
6408 | return 0; |
6409 | ||
6410 | err_unpin: | |
6411 | intel_unpin_fb_obj(obj); | |
6412 | err: | |
8c9f3aaf JB |
6413 | return ret; |
6414 | } | |
6415 | ||
7c9017e5 JB |
6416 | /* |
6417 | * On gen7 we currently use the blit ring because (in early silicon at least) | |
6418 | * the render ring doesn't give us interrpts for page flip completion, which | |
6419 | * means clients will hang after the first flip is queued. Fortunately the | |
6420 | * blit ring generates interrupts properly, so use it instead. | |
6421 | */ | |
6422 | static int intel_gen7_queue_flip(struct drm_device *dev, | |
6423 | struct drm_crtc *crtc, | |
6424 | struct drm_framebuffer *fb, | |
6425 | struct drm_i915_gem_object *obj) | |
6426 | { | |
6427 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6428 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6429 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; | |
cb05d8de | 6430 | uint32_t plane_bit = 0; |
7c9017e5 JB |
6431 | int ret; |
6432 | ||
6433 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); | |
6434 | if (ret) | |
83d4092b | 6435 | goto err; |
7c9017e5 | 6436 | |
cb05d8de DV |
6437 | switch(intel_crtc->plane) { |
6438 | case PLANE_A: | |
6439 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
6440 | break; | |
6441 | case PLANE_B: | |
6442 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
6443 | break; | |
6444 | case PLANE_C: | |
6445 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
6446 | break; | |
6447 | default: | |
6448 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
6449 | ret = -ENODEV; | |
ab3951eb | 6450 | goto err_unpin; |
cb05d8de DV |
6451 | } |
6452 | ||
7c9017e5 JB |
6453 | ret = intel_ring_begin(ring, 4); |
6454 | if (ret) | |
83d4092b | 6455 | goto err_unpin; |
7c9017e5 | 6456 | |
cb05d8de | 6457 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 6458 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
c2c75131 | 6459 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
7c9017e5 JB |
6460 | intel_ring_emit(ring, (MI_NOOP)); |
6461 | intel_ring_advance(ring); | |
83d4092b CW |
6462 | return 0; |
6463 | ||
6464 | err_unpin: | |
6465 | intel_unpin_fb_obj(obj); | |
6466 | err: | |
7c9017e5 JB |
6467 | return ret; |
6468 | } | |
6469 | ||
8c9f3aaf JB |
6470 | static int intel_default_queue_flip(struct drm_device *dev, |
6471 | struct drm_crtc *crtc, | |
6472 | struct drm_framebuffer *fb, | |
6473 | struct drm_i915_gem_object *obj) | |
6474 | { | |
6475 | return -ENODEV; | |
6476 | } | |
6477 | ||
6b95a207 KH |
6478 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
6479 | struct drm_framebuffer *fb, | |
6480 | struct drm_pending_vblank_event *event) | |
6481 | { | |
6482 | struct drm_device *dev = crtc->dev; | |
6483 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6484 | struct intel_framebuffer *intel_fb; | |
05394f39 | 6485 | struct drm_i915_gem_object *obj; |
6b95a207 KH |
6486 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6487 | struct intel_unpin_work *work; | |
8c9f3aaf | 6488 | unsigned long flags; |
52e68630 | 6489 | int ret; |
6b95a207 | 6490 | |
e6a595d2 VS |
6491 | /* Can't change pixel format via MI display flips. */ |
6492 | if (fb->pixel_format != crtc->fb->pixel_format) | |
6493 | return -EINVAL; | |
6494 | ||
6495 | /* | |
6496 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
6497 | * Note that pitch changes could also affect these register. | |
6498 | */ | |
6499 | if (INTEL_INFO(dev)->gen > 3 && | |
6500 | (fb->offsets[0] != crtc->fb->offsets[0] || | |
6501 | fb->pitches[0] != crtc->fb->pitches[0])) | |
6502 | return -EINVAL; | |
6503 | ||
6b95a207 KH |
6504 | work = kzalloc(sizeof *work, GFP_KERNEL); |
6505 | if (work == NULL) | |
6506 | return -ENOMEM; | |
6507 | ||
6b95a207 KH |
6508 | work->event = event; |
6509 | work->dev = crtc->dev; | |
6510 | intel_fb = to_intel_framebuffer(crtc->fb); | |
b1b87f6b | 6511 | work->old_fb_obj = intel_fb->obj; |
6b95a207 KH |
6512 | INIT_WORK(&work->work, intel_unpin_work_fn); |
6513 | ||
7317c75e JB |
6514 | ret = drm_vblank_get(dev, intel_crtc->pipe); |
6515 | if (ret) | |
6516 | goto free_work; | |
6517 | ||
6b95a207 KH |
6518 | /* We borrow the event spin lock for protecting unpin_work */ |
6519 | spin_lock_irqsave(&dev->event_lock, flags); | |
6520 | if (intel_crtc->unpin_work) { | |
6521 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6522 | kfree(work); | |
7317c75e | 6523 | drm_vblank_put(dev, intel_crtc->pipe); |
468f0b44 CW |
6524 | |
6525 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
6b95a207 KH |
6526 | return -EBUSY; |
6527 | } | |
6528 | intel_crtc->unpin_work = work; | |
6529 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6530 | ||
6531 | intel_fb = to_intel_framebuffer(fb); | |
6532 | obj = intel_fb->obj; | |
6533 | ||
79158103 CW |
6534 | ret = i915_mutex_lock_interruptible(dev); |
6535 | if (ret) | |
6536 | goto cleanup; | |
6b95a207 | 6537 | |
75dfca80 | 6538 | /* Reference the objects for the scheduled work. */ |
05394f39 CW |
6539 | drm_gem_object_reference(&work->old_fb_obj->base); |
6540 | drm_gem_object_reference(&obj->base); | |
6b95a207 KH |
6541 | |
6542 | crtc->fb = fb; | |
96b099fd | 6543 | |
e1f99ce6 | 6544 | work->pending_flip_obj = obj; |
e1f99ce6 | 6545 | |
4e5359cd SF |
6546 | work->enable_stall_check = true; |
6547 | ||
e1f99ce6 CW |
6548 | /* Block clients from rendering to the new back buffer until |
6549 | * the flip occurs and the object is no longer visible. | |
6550 | */ | |
05394f39 | 6551 | atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); |
e1f99ce6 | 6552 | |
8c9f3aaf JB |
6553 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); |
6554 | if (ret) | |
6555 | goto cleanup_pending; | |
6b95a207 | 6556 | |
7782de3b | 6557 | intel_disable_fbc(dev); |
f047e395 | 6558 | intel_mark_fb_busy(obj); |
6b95a207 KH |
6559 | mutex_unlock(&dev->struct_mutex); |
6560 | ||
e5510fac JB |
6561 | trace_i915_flip_request(intel_crtc->plane, obj); |
6562 | ||
6b95a207 | 6563 | return 0; |
96b099fd | 6564 | |
8c9f3aaf JB |
6565 | cleanup_pending: |
6566 | atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); | |
05394f39 CW |
6567 | drm_gem_object_unreference(&work->old_fb_obj->base); |
6568 | drm_gem_object_unreference(&obj->base); | |
96b099fd CW |
6569 | mutex_unlock(&dev->struct_mutex); |
6570 | ||
79158103 | 6571 | cleanup: |
96b099fd CW |
6572 | spin_lock_irqsave(&dev->event_lock, flags); |
6573 | intel_crtc->unpin_work = NULL; | |
6574 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6575 | ||
7317c75e JB |
6576 | drm_vblank_put(dev, intel_crtc->pipe); |
6577 | free_work: | |
96b099fd CW |
6578 | kfree(work); |
6579 | ||
6580 | return ret; | |
6b95a207 KH |
6581 | } |
6582 | ||
f6e5b160 | 6583 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 CW |
6584 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
6585 | .load_lut = intel_crtc_load_lut, | |
976f8a20 | 6586 | .disable = intel_crtc_noop, |
f6e5b160 CW |
6587 | }; |
6588 | ||
6ed0f796 DV |
6589 | bool intel_encoder_check_is_cloned(struct intel_encoder *encoder) |
6590 | { | |
6591 | struct intel_encoder *other_encoder; | |
6592 | struct drm_crtc *crtc = &encoder->new_crtc->base; | |
6593 | ||
6594 | if (WARN_ON(!crtc)) | |
6595 | return false; | |
6596 | ||
6597 | list_for_each_entry(other_encoder, | |
6598 | &crtc->dev->mode_config.encoder_list, | |
6599 | base.head) { | |
6600 | ||
6601 | if (&other_encoder->new_crtc->base != crtc || | |
6602 | encoder == other_encoder) | |
6603 | continue; | |
6604 | else | |
6605 | return true; | |
6606 | } | |
6607 | ||
6608 | return false; | |
6609 | } | |
6610 | ||
50f56119 DV |
6611 | static bool intel_encoder_crtc_ok(struct drm_encoder *encoder, |
6612 | struct drm_crtc *crtc) | |
6613 | { | |
6614 | struct drm_device *dev; | |
6615 | struct drm_crtc *tmp; | |
6616 | int crtc_mask = 1; | |
6617 | ||
6618 | WARN(!crtc, "checking null crtc?\n"); | |
6619 | ||
6620 | dev = crtc->dev; | |
6621 | ||
6622 | list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) { | |
6623 | if (tmp == crtc) | |
6624 | break; | |
6625 | crtc_mask <<= 1; | |
6626 | } | |
6627 | ||
6628 | if (encoder->possible_crtcs & crtc_mask) | |
6629 | return true; | |
6630 | return false; | |
6631 | } | |
6632 | ||
a6778b3c DV |
6633 | static void |
6634 | intel_crtc_prepare_encoders(struct drm_device *dev) | |
6635 | { | |
821112aa | 6636 | struct intel_encoder *encoder; |
a6778b3c | 6637 | |
821112aa | 6638 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
a6778b3c | 6639 | /* Disable unused encoders */ |
821112aa DV |
6640 | if (encoder->base.crtc == NULL) |
6641 | encoder->disable(encoder); | |
a6778b3c DV |
6642 | } |
6643 | } | |
6644 | ||
9a935856 DV |
6645 | /** |
6646 | * intel_modeset_update_staged_output_state | |
6647 | * | |
6648 | * Updates the staged output configuration state, e.g. after we've read out the | |
6649 | * current hw state. | |
6650 | */ | |
6651 | static void intel_modeset_update_staged_output_state(struct drm_device *dev) | |
6652 | { | |
6653 | struct intel_encoder *encoder; | |
6654 | struct intel_connector *connector; | |
6655 | ||
6656 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
6657 | base.head) { | |
6658 | connector->new_encoder = | |
6659 | to_intel_encoder(connector->base.encoder); | |
6660 | } | |
6661 | ||
6662 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
6663 | base.head) { | |
6664 | encoder->new_crtc = | |
6665 | to_intel_crtc(encoder->base.crtc); | |
6666 | } | |
6667 | } | |
6668 | ||
6669 | /** | |
6670 | * intel_modeset_commit_output_state | |
6671 | * | |
6672 | * This function copies the stage display pipe configuration to the real one. | |
6673 | */ | |
6674 | static void intel_modeset_commit_output_state(struct drm_device *dev) | |
6675 | { | |
6676 | struct intel_encoder *encoder; | |
6677 | struct intel_connector *connector; | |
6678 | ||
6679 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
6680 | base.head) { | |
6681 | connector->base.encoder = &connector->new_encoder->base; | |
6682 | } | |
6683 | ||
6684 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
6685 | base.head) { | |
6686 | encoder->base.crtc = &encoder->new_crtc->base; | |
6687 | } | |
6688 | } | |
6689 | ||
7758a113 DV |
6690 | static struct drm_display_mode * |
6691 | intel_modeset_adjusted_mode(struct drm_crtc *crtc, | |
6692 | struct drm_display_mode *mode) | |
6693 | { | |
6694 | struct drm_device *dev = crtc->dev; | |
6695 | struct drm_display_mode *adjusted_mode; | |
6696 | struct drm_encoder_helper_funcs *encoder_funcs; | |
6697 | struct intel_encoder *encoder; | |
6698 | ||
6699 | adjusted_mode = drm_mode_duplicate(dev, mode); | |
6700 | if (!adjusted_mode) | |
6701 | return ERR_PTR(-ENOMEM); | |
6702 | ||
6703 | /* Pass our mode to the connectors and the CRTC to give them a chance to | |
6704 | * adjust it according to limitations or connector properties, and also | |
6705 | * a chance to reject the mode entirely. | |
6706 | */ | |
6707 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
6708 | base.head) { | |
6709 | ||
6710 | if (&encoder->new_crtc->base != crtc) | |
6711 | continue; | |
6712 | encoder_funcs = encoder->base.helper_private; | |
6713 | if (!(encoder_funcs->mode_fixup(&encoder->base, mode, | |
6714 | adjusted_mode))) { | |
6715 | DRM_DEBUG_KMS("Encoder fixup failed\n"); | |
6716 | goto fail; | |
6717 | } | |
6718 | } | |
6719 | ||
6720 | if (!(intel_crtc_mode_fixup(crtc, mode, adjusted_mode))) { | |
6721 | DRM_DEBUG_KMS("CRTC fixup failed\n"); | |
6722 | goto fail; | |
6723 | } | |
6724 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); | |
6725 | ||
6726 | return adjusted_mode; | |
6727 | fail: | |
6728 | drm_mode_destroy(dev, adjusted_mode); | |
6729 | return ERR_PTR(-EINVAL); | |
6730 | } | |
6731 | ||
e2e1ed41 DV |
6732 | /* Computes which crtcs are affected and sets the relevant bits in the mask. For |
6733 | * simplicity we use the crtc's pipe number (because it's easier to obtain). */ | |
6734 | static void | |
6735 | intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes, | |
6736 | unsigned *prepare_pipes, unsigned *disable_pipes) | |
6737 | { | |
6738 | struct intel_crtc *intel_crtc; | |
6739 | struct drm_device *dev = crtc->dev; | |
6740 | struct intel_encoder *encoder; | |
6741 | struct intel_connector *connector; | |
6742 | struct drm_crtc *tmp_crtc; | |
6743 | ||
6744 | *disable_pipes = *modeset_pipes = *prepare_pipes = 0; | |
6745 | ||
6746 | /* Check which crtcs have changed outputs connected to them, these need | |
6747 | * to be part of the prepare_pipes mask. We don't (yet) support global | |
6748 | * modeset across multiple crtcs, so modeset_pipes will only have one | |
6749 | * bit set at most. */ | |
6750 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
6751 | base.head) { | |
6752 | if (connector->base.encoder == &connector->new_encoder->base) | |
6753 | continue; | |
6754 | ||
6755 | if (connector->base.encoder) { | |
6756 | tmp_crtc = connector->base.encoder->crtc; | |
6757 | ||
6758 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
6759 | } | |
6760 | ||
6761 | if (connector->new_encoder) | |
6762 | *prepare_pipes |= | |
6763 | 1 << connector->new_encoder->new_crtc->pipe; | |
6764 | } | |
6765 | ||
6766 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
6767 | base.head) { | |
6768 | if (encoder->base.crtc == &encoder->new_crtc->base) | |
6769 | continue; | |
6770 | ||
6771 | if (encoder->base.crtc) { | |
6772 | tmp_crtc = encoder->base.crtc; | |
6773 | ||
6774 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
6775 | } | |
6776 | ||
6777 | if (encoder->new_crtc) | |
6778 | *prepare_pipes |= 1 << encoder->new_crtc->pipe; | |
6779 | } | |
6780 | ||
6781 | /* Check for any pipes that will be fully disabled ... */ | |
6782 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
6783 | base.head) { | |
6784 | bool used = false; | |
6785 | ||
6786 | /* Don't try to disable disabled crtcs. */ | |
6787 | if (!intel_crtc->base.enabled) | |
6788 | continue; | |
6789 | ||
6790 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
6791 | base.head) { | |
6792 | if (encoder->new_crtc == intel_crtc) | |
6793 | used = true; | |
6794 | } | |
6795 | ||
6796 | if (!used) | |
6797 | *disable_pipes |= 1 << intel_crtc->pipe; | |
6798 | } | |
6799 | ||
6800 | ||
6801 | /* set_mode is also used to update properties on life display pipes. */ | |
6802 | intel_crtc = to_intel_crtc(crtc); | |
6803 | if (crtc->enabled) | |
6804 | *prepare_pipes |= 1 << intel_crtc->pipe; | |
6805 | ||
6806 | /* We only support modeset on one single crtc, hence we need to do that | |
6807 | * only for the passed in crtc iff we change anything else than just | |
6808 | * disable crtcs. | |
6809 | * | |
6810 | * This is actually not true, to be fully compatible with the old crtc | |
6811 | * helper we automatically disable _any_ output (i.e. doesn't need to be | |
6812 | * connected to the crtc we're modesetting on) if it's disconnected. | |
6813 | * Which is a rather nutty api (since changed the output configuration | |
6814 | * without userspace's explicit request can lead to confusion), but | |
6815 | * alas. Hence we currently need to modeset on all pipes we prepare. */ | |
6816 | if (*prepare_pipes) | |
6817 | *modeset_pipes = *prepare_pipes; | |
6818 | ||
6819 | /* ... and mask these out. */ | |
6820 | *modeset_pipes &= ~(*disable_pipes); | |
6821 | *prepare_pipes &= ~(*disable_pipes); | |
6822 | } | |
6823 | ||
25c5b266 DV |
6824 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
6825 | list_for_each_entry((intel_crtc), \ | |
6826 | &(dev)->mode_config.crtc_list, \ | |
6827 | base.head) \ | |
6828 | if (mask & (1 <<(intel_crtc)->pipe)) \ | |
6829 | ||
a6778b3c DV |
6830 | bool intel_set_mode(struct drm_crtc *crtc, |
6831 | struct drm_display_mode *mode, | |
94352cf9 | 6832 | int x, int y, struct drm_framebuffer *fb) |
a6778b3c DV |
6833 | { |
6834 | struct drm_device *dev = crtc->dev; | |
dbf2b54e | 6835 | drm_i915_private_t *dev_priv = dev->dev_private; |
a6778b3c | 6836 | struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode; |
a6778b3c | 6837 | struct drm_encoder_helper_funcs *encoder_funcs; |
a6778b3c | 6838 | struct drm_encoder *encoder; |
25c5b266 DV |
6839 | struct intel_crtc *intel_crtc; |
6840 | unsigned disable_pipes, prepare_pipes, modeset_pipes; | |
a6778b3c DV |
6841 | bool ret = true; |
6842 | ||
e2e1ed41 | 6843 | intel_modeset_affected_pipes(crtc, &modeset_pipes, |
25c5b266 DV |
6844 | &prepare_pipes, &disable_pipes); |
6845 | ||
6846 | DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n", | |
6847 | modeset_pipes, prepare_pipes, disable_pipes); | |
e2e1ed41 | 6848 | |
976f8a20 DV |
6849 | for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) |
6850 | intel_crtc_disable(&intel_crtc->base); | |
87f1faa6 | 6851 | |
976f8a20 | 6852 | intel_modeset_commit_output_state(dev); |
a6778b3c | 6853 | |
976f8a20 DV |
6854 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, |
6855 | base.head) | |
6856 | intel_crtc->base.enabled = drm_helper_crtc_in_use(crtc); | |
a6778b3c DV |
6857 | |
6858 | saved_hwmode = crtc->hwmode; | |
6859 | saved_mode = crtc->mode; | |
a6778b3c | 6860 | |
25c5b266 DV |
6861 | /* Hack: Because we don't (yet) support global modeset on multiple |
6862 | * crtcs, we don't keep track of the new mode for more than one crtc. | |
6863 | * Hence simply check whether any bit is set in modeset_pipes in all the | |
6864 | * pieces of code that are not yet converted to deal with mutliple crtcs | |
6865 | * changing their mode at the same time. */ | |
6866 | adjusted_mode = NULL; | |
6867 | if (modeset_pipes) { | |
6868 | adjusted_mode = intel_modeset_adjusted_mode(crtc, mode); | |
6869 | if (IS_ERR(adjusted_mode)) { | |
6870 | return false; | |
6871 | } | |
a6778b3c | 6872 | |
25c5b266 DV |
6873 | intel_crtc_prepare_encoders(dev); |
6874 | } | |
a6778b3c | 6875 | |
25c5b266 DV |
6876 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) |
6877 | dev_priv->display.crtc_disable(&intel_crtc->base); | |
a6778b3c | 6878 | |
25c5b266 DV |
6879 | if (modeset_pipes) { |
6880 | crtc->mode = *mode; | |
6881 | crtc->x = x; | |
6882 | crtc->y = y; | |
6883 | } | |
7758a113 | 6884 | |
a6778b3c DV |
6885 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
6886 | * on the DPLL. | |
6887 | */ | |
25c5b266 DV |
6888 | for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { |
6889 | ret = !intel_crtc_mode_set(&intel_crtc->base, | |
6890 | mode, adjusted_mode, | |
6891 | x, y, fb); | |
6892 | if (!ret) | |
6893 | goto done; | |
a6778b3c | 6894 | |
25c5b266 | 6895 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
a6778b3c | 6896 | |
25c5b266 DV |
6897 | if (encoder->crtc != &intel_crtc->base) |
6898 | continue; | |
a6778b3c | 6899 | |
25c5b266 DV |
6900 | DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", |
6901 | encoder->base.id, drm_get_encoder_name(encoder), | |
6902 | mode->base.id, mode->name); | |
6903 | encoder_funcs = encoder->helper_private; | |
6904 | encoder_funcs->mode_set(encoder, mode, adjusted_mode); | |
6905 | } | |
a6778b3c DV |
6906 | } |
6907 | ||
6908 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ | |
25c5b266 DV |
6909 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) |
6910 | dev_priv->display.crtc_enable(&intel_crtc->base); | |
a6778b3c | 6911 | |
25c5b266 DV |
6912 | if (modeset_pipes) { |
6913 | /* Store real post-adjustment hardware mode. */ | |
6914 | crtc->hwmode = *adjusted_mode; | |
a6778b3c | 6915 | |
25c5b266 DV |
6916 | /* Calculate and store various constants which |
6917 | * are later needed by vblank and swap-completion | |
6918 | * timestamping. They are derived from true hwmode. | |
6919 | */ | |
6920 | drm_calc_timestamping_constants(crtc); | |
6921 | } | |
a6778b3c DV |
6922 | |
6923 | /* FIXME: add subpixel order */ | |
6924 | done: | |
6925 | drm_mode_destroy(dev, adjusted_mode); | |
25c5b266 | 6926 | if (!ret && crtc->enabled) { |
a6778b3c DV |
6927 | crtc->hwmode = saved_hwmode; |
6928 | crtc->mode = saved_mode; | |
a6778b3c DV |
6929 | } |
6930 | ||
6931 | return ret; | |
6932 | } | |
6933 | ||
25c5b266 DV |
6934 | #undef for_each_intel_crtc_masked |
6935 | ||
d9e55608 DV |
6936 | static void intel_set_config_free(struct intel_set_config *config) |
6937 | { | |
6938 | if (!config) | |
6939 | return; | |
6940 | ||
1aa4b628 DV |
6941 | kfree(config->save_connector_encoders); |
6942 | kfree(config->save_encoder_crtcs); | |
d9e55608 DV |
6943 | kfree(config); |
6944 | } | |
6945 | ||
85f9eb71 DV |
6946 | static int intel_set_config_save_state(struct drm_device *dev, |
6947 | struct intel_set_config *config) | |
6948 | { | |
85f9eb71 DV |
6949 | struct drm_encoder *encoder; |
6950 | struct drm_connector *connector; | |
6951 | int count; | |
6952 | ||
1aa4b628 DV |
6953 | config->save_encoder_crtcs = |
6954 | kcalloc(dev->mode_config.num_encoder, | |
6955 | sizeof(struct drm_crtc *), GFP_KERNEL); | |
6956 | if (!config->save_encoder_crtcs) | |
85f9eb71 DV |
6957 | return -ENOMEM; |
6958 | ||
1aa4b628 DV |
6959 | config->save_connector_encoders = |
6960 | kcalloc(dev->mode_config.num_connector, | |
6961 | sizeof(struct drm_encoder *), GFP_KERNEL); | |
6962 | if (!config->save_connector_encoders) | |
85f9eb71 DV |
6963 | return -ENOMEM; |
6964 | ||
6965 | /* Copy data. Note that driver private data is not affected. | |
6966 | * Should anything bad happen only the expected state is | |
6967 | * restored, not the drivers personal bookkeeping. | |
6968 | */ | |
85f9eb71 DV |
6969 | count = 0; |
6970 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
1aa4b628 | 6971 | config->save_encoder_crtcs[count++] = encoder->crtc; |
85f9eb71 DV |
6972 | } |
6973 | ||
6974 | count = 0; | |
6975 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1aa4b628 | 6976 | config->save_connector_encoders[count++] = connector->encoder; |
85f9eb71 DV |
6977 | } |
6978 | ||
6979 | return 0; | |
6980 | } | |
6981 | ||
6982 | static void intel_set_config_restore_state(struct drm_device *dev, | |
6983 | struct intel_set_config *config) | |
6984 | { | |
9a935856 DV |
6985 | struct intel_encoder *encoder; |
6986 | struct intel_connector *connector; | |
85f9eb71 DV |
6987 | int count; |
6988 | ||
85f9eb71 | 6989 | count = 0; |
9a935856 DV |
6990 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
6991 | encoder->new_crtc = | |
6992 | to_intel_crtc(config->save_encoder_crtcs[count++]); | |
85f9eb71 DV |
6993 | } |
6994 | ||
6995 | count = 0; | |
9a935856 DV |
6996 | list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) { |
6997 | connector->new_encoder = | |
6998 | to_intel_encoder(config->save_connector_encoders[count++]); | |
85f9eb71 DV |
6999 | } |
7000 | } | |
7001 | ||
5e2b584e DV |
7002 | static void |
7003 | intel_set_config_compute_mode_changes(struct drm_mode_set *set, | |
7004 | struct intel_set_config *config) | |
7005 | { | |
7006 | ||
7007 | /* We should be able to check here if the fb has the same properties | |
7008 | * and then just flip_or_move it */ | |
7009 | if (set->crtc->fb != set->fb) { | |
7010 | /* If we have no fb then treat it as a full mode set */ | |
7011 | if (set->crtc->fb == NULL) { | |
7012 | DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); | |
7013 | config->mode_changed = true; | |
7014 | } else if (set->fb == NULL) { | |
7015 | config->mode_changed = true; | |
7016 | } else if (set->fb->depth != set->crtc->fb->depth) { | |
7017 | config->mode_changed = true; | |
7018 | } else if (set->fb->bits_per_pixel != | |
7019 | set->crtc->fb->bits_per_pixel) { | |
7020 | config->mode_changed = true; | |
7021 | } else | |
7022 | config->fb_changed = true; | |
7023 | } | |
7024 | ||
835c5873 | 7025 | if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) |
5e2b584e DV |
7026 | config->fb_changed = true; |
7027 | ||
7028 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { | |
7029 | DRM_DEBUG_KMS("modes are different, full mode set\n"); | |
7030 | drm_mode_debug_printmodeline(&set->crtc->mode); | |
7031 | drm_mode_debug_printmodeline(set->mode); | |
7032 | config->mode_changed = true; | |
7033 | } | |
7034 | } | |
7035 | ||
2e431051 | 7036 | static int |
9a935856 DV |
7037 | intel_modeset_stage_output_state(struct drm_device *dev, |
7038 | struct drm_mode_set *set, | |
7039 | struct intel_set_config *config) | |
50f56119 | 7040 | { |
85f9eb71 | 7041 | struct drm_crtc *new_crtc; |
9a935856 DV |
7042 | struct intel_connector *connector; |
7043 | struct intel_encoder *encoder; | |
2e431051 | 7044 | int count, ro; |
50f56119 | 7045 | |
9a935856 DV |
7046 | /* The upper layers ensure that we either disabl a crtc or have a list |
7047 | * of connectors. For paranoia, double-check this. */ | |
7048 | WARN_ON(!set->fb && (set->num_connectors != 0)); | |
7049 | WARN_ON(set->fb && (set->num_connectors == 0)); | |
7050 | ||
50f56119 | 7051 | count = 0; |
9a935856 DV |
7052 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7053 | base.head) { | |
7054 | /* Otherwise traverse passed in connector list and get encoders | |
7055 | * for them. */ | |
50f56119 | 7056 | for (ro = 0; ro < set->num_connectors; ro++) { |
9a935856 DV |
7057 | if (set->connectors[ro] == &connector->base) { |
7058 | connector->new_encoder = connector->encoder; | |
50f56119 DV |
7059 | break; |
7060 | } | |
7061 | } | |
7062 | ||
9a935856 DV |
7063 | /* If we disable the crtc, disable all its connectors. Also, if |
7064 | * the connector is on the changing crtc but not on the new | |
7065 | * connector list, disable it. */ | |
7066 | if ((!set->fb || ro == set->num_connectors) && | |
7067 | connector->base.encoder && | |
7068 | connector->base.encoder->crtc == set->crtc) { | |
7069 | connector->new_encoder = NULL; | |
7070 | ||
7071 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", | |
7072 | connector->base.base.id, | |
7073 | drm_get_connector_name(&connector->base)); | |
7074 | } | |
7075 | ||
7076 | ||
7077 | if (&connector->new_encoder->base != connector->base.encoder) { | |
50f56119 | 7078 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
5e2b584e | 7079 | config->mode_changed = true; |
50f56119 | 7080 | } |
9a935856 DV |
7081 | |
7082 | /* Disable all disconnected encoders. */ | |
7083 | if (connector->base.status == connector_status_disconnected) | |
7084 | connector->new_encoder = NULL; | |
50f56119 | 7085 | } |
9a935856 | 7086 | /* connector->new_encoder is now updated for all connectors. */ |
50f56119 | 7087 | |
9a935856 | 7088 | /* Update crtc of enabled connectors. */ |
50f56119 | 7089 | count = 0; |
9a935856 DV |
7090 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7091 | base.head) { | |
7092 | if (!connector->new_encoder) | |
50f56119 DV |
7093 | continue; |
7094 | ||
9a935856 | 7095 | new_crtc = connector->new_encoder->base.crtc; |
50f56119 DV |
7096 | |
7097 | for (ro = 0; ro < set->num_connectors; ro++) { | |
9a935856 | 7098 | if (set->connectors[ro] == &connector->base) |
50f56119 DV |
7099 | new_crtc = set->crtc; |
7100 | } | |
7101 | ||
7102 | /* Make sure the new CRTC will work with the encoder */ | |
9a935856 DV |
7103 | if (!intel_encoder_crtc_ok(&connector->new_encoder->base, |
7104 | new_crtc)) { | |
5e2b584e | 7105 | return -EINVAL; |
50f56119 | 7106 | } |
9a935856 DV |
7107 | connector->encoder->new_crtc = to_intel_crtc(new_crtc); |
7108 | ||
7109 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", | |
7110 | connector->base.base.id, | |
7111 | drm_get_connector_name(&connector->base), | |
7112 | new_crtc->base.id); | |
7113 | } | |
7114 | ||
7115 | /* Check for any encoders that needs to be disabled. */ | |
7116 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
7117 | base.head) { | |
7118 | list_for_each_entry(connector, | |
7119 | &dev->mode_config.connector_list, | |
7120 | base.head) { | |
7121 | if (connector->new_encoder == encoder) { | |
7122 | WARN_ON(!connector->new_encoder->new_crtc); | |
7123 | ||
7124 | goto next_encoder; | |
7125 | } | |
7126 | } | |
7127 | encoder->new_crtc = NULL; | |
7128 | next_encoder: | |
7129 | /* Only now check for crtc changes so we don't miss encoders | |
7130 | * that will be disabled. */ | |
7131 | if (&encoder->new_crtc->base != encoder->base.crtc) { | |
50f56119 | 7132 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
5e2b584e | 7133 | config->mode_changed = true; |
50f56119 DV |
7134 | } |
7135 | } | |
9a935856 | 7136 | /* Now we've also updated encoder->new_crtc for all encoders. */ |
50f56119 | 7137 | |
2e431051 DV |
7138 | return 0; |
7139 | } | |
7140 | ||
7141 | static int intel_crtc_set_config(struct drm_mode_set *set) | |
7142 | { | |
7143 | struct drm_device *dev; | |
2e431051 DV |
7144 | struct drm_mode_set save_set; |
7145 | struct intel_set_config *config; | |
7146 | int ret; | |
7147 | int i; | |
7148 | ||
8d3e375e DV |
7149 | BUG_ON(!set); |
7150 | BUG_ON(!set->crtc); | |
7151 | BUG_ON(!set->crtc->helper_private); | |
2e431051 DV |
7152 | |
7153 | if (!set->mode) | |
7154 | set->fb = NULL; | |
7155 | ||
431e50f7 DV |
7156 | /* The fb helper likes to play gross jokes with ->mode_set_config. |
7157 | * Unfortunately the crtc helper doesn't do much at all for this case, | |
7158 | * so we have to cope with this madness until the fb helper is fixed up. */ | |
7159 | if (set->fb && set->num_connectors == 0) | |
7160 | return 0; | |
7161 | ||
2e431051 DV |
7162 | if (set->fb) { |
7163 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", | |
7164 | set->crtc->base.id, set->fb->base.id, | |
7165 | (int)set->num_connectors, set->x, set->y); | |
7166 | } else { | |
7167 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); | |
2e431051 DV |
7168 | } |
7169 | ||
7170 | dev = set->crtc->dev; | |
7171 | ||
7172 | ret = -ENOMEM; | |
7173 | config = kzalloc(sizeof(*config), GFP_KERNEL); | |
7174 | if (!config) | |
7175 | goto out_config; | |
7176 | ||
7177 | ret = intel_set_config_save_state(dev, config); | |
7178 | if (ret) | |
7179 | goto out_config; | |
7180 | ||
7181 | save_set.crtc = set->crtc; | |
7182 | save_set.mode = &set->crtc->mode; | |
7183 | save_set.x = set->crtc->x; | |
7184 | save_set.y = set->crtc->y; | |
7185 | save_set.fb = set->crtc->fb; | |
7186 | ||
7187 | /* Compute whether we need a full modeset, only an fb base update or no | |
7188 | * change at all. In the future we might also check whether only the | |
7189 | * mode changed, e.g. for LVDS where we only change the panel fitter in | |
7190 | * such cases. */ | |
7191 | intel_set_config_compute_mode_changes(set, config); | |
7192 | ||
9a935856 | 7193 | ret = intel_modeset_stage_output_state(dev, set, config); |
2e431051 DV |
7194 | if (ret) |
7195 | goto fail; | |
7196 | ||
5e2b584e | 7197 | if (config->mode_changed) { |
87f1faa6 | 7198 | if (set->mode) { |
50f56119 DV |
7199 | DRM_DEBUG_KMS("attempting to set mode from" |
7200 | " userspace\n"); | |
7201 | drm_mode_debug_printmodeline(set->mode); | |
87f1faa6 DV |
7202 | } |
7203 | ||
7204 | if (!intel_set_mode(set->crtc, set->mode, | |
7205 | set->x, set->y, set->fb)) { | |
7206 | DRM_ERROR("failed to set mode on [CRTC:%d]\n", | |
7207 | set->crtc->base.id); | |
7208 | ret = -EINVAL; | |
7209 | goto fail; | |
7210 | } | |
7211 | ||
7212 | if (set->crtc->enabled) { | |
50f56119 DV |
7213 | DRM_DEBUG_KMS("Setting connector DPMS state to on\n"); |
7214 | for (i = 0; i < set->num_connectors; i++) { | |
7215 | DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id, | |
7216 | drm_get_connector_name(set->connectors[i])); | |
7217 | set->connectors[i]->funcs->dpms(set->connectors[i], DRM_MODE_DPMS_ON); | |
7218 | } | |
7219 | } | |
5e2b584e | 7220 | } else if (config->fb_changed) { |
4f660f49 | 7221 | ret = intel_pipe_set_base(set->crtc, |
94352cf9 | 7222 | set->x, set->y, set->fb); |
50f56119 DV |
7223 | } |
7224 | ||
d9e55608 DV |
7225 | intel_set_config_free(config); |
7226 | ||
50f56119 DV |
7227 | return 0; |
7228 | ||
7229 | fail: | |
85f9eb71 | 7230 | intel_set_config_restore_state(dev, config); |
50f56119 DV |
7231 | |
7232 | /* Try to restore the config */ | |
5e2b584e | 7233 | if (config->mode_changed && |
a6778b3c DV |
7234 | !intel_set_mode(save_set.crtc, save_set.mode, |
7235 | save_set.x, save_set.y, save_set.fb)) | |
50f56119 DV |
7236 | DRM_ERROR("failed to restore config after modeset failure\n"); |
7237 | ||
d9e55608 DV |
7238 | out_config: |
7239 | intel_set_config_free(config); | |
50f56119 DV |
7240 | return ret; |
7241 | } | |
7242 | ||
f6e5b160 | 7243 | static const struct drm_crtc_funcs intel_crtc_funcs = { |
f6e5b160 CW |
7244 | .cursor_set = intel_crtc_cursor_set, |
7245 | .cursor_move = intel_crtc_cursor_move, | |
7246 | .gamma_set = intel_crtc_gamma_set, | |
50f56119 | 7247 | .set_config = intel_crtc_set_config, |
f6e5b160 CW |
7248 | .destroy = intel_crtc_destroy, |
7249 | .page_flip = intel_crtc_page_flip, | |
7250 | }; | |
7251 | ||
ee7b9f93 JB |
7252 | static void intel_pch_pll_init(struct drm_device *dev) |
7253 | { | |
7254 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7255 | int i; | |
7256 | ||
7257 | if (dev_priv->num_pch_pll == 0) { | |
7258 | DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n"); | |
7259 | return; | |
7260 | } | |
7261 | ||
7262 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
7263 | dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i); | |
7264 | dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i); | |
7265 | dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i); | |
7266 | } | |
7267 | } | |
7268 | ||
b358d0a6 | 7269 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 7270 | { |
22fd0fab | 7271 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
7272 | struct intel_crtc *intel_crtc; |
7273 | int i; | |
7274 | ||
7275 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
7276 | if (intel_crtc == NULL) | |
7277 | return; | |
7278 | ||
7279 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
7280 | ||
7281 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
7282 | for (i = 0; i < 256; i++) { |
7283 | intel_crtc->lut_r[i] = i; | |
7284 | intel_crtc->lut_g[i] = i; | |
7285 | intel_crtc->lut_b[i] = i; | |
7286 | } | |
7287 | ||
80824003 JB |
7288 | /* Swap pipes & planes for FBC on pre-965 */ |
7289 | intel_crtc->pipe = pipe; | |
7290 | intel_crtc->plane = pipe; | |
e2e767ab | 7291 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
28c97730 | 7292 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 7293 | intel_crtc->plane = !pipe; |
80824003 JB |
7294 | } |
7295 | ||
22fd0fab JB |
7296 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
7297 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
7298 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
7299 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
7300 | ||
5a354204 | 7301 | intel_crtc->bpp = 24; /* default for pre-Ironlake */ |
7e7d76c3 | 7302 | |
79e53945 | 7303 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
79e53945 JB |
7304 | } |
7305 | ||
08d7b3d1 | 7306 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 7307 | struct drm_file *file) |
08d7b3d1 | 7308 | { |
08d7b3d1 | 7309 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
c05422d5 DV |
7310 | struct drm_mode_object *drmmode_obj; |
7311 | struct intel_crtc *crtc; | |
08d7b3d1 | 7312 | |
1cff8f6b DV |
7313 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
7314 | return -ENODEV; | |
08d7b3d1 | 7315 | |
c05422d5 DV |
7316 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
7317 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 7318 | |
c05422d5 | 7319 | if (!drmmode_obj) { |
08d7b3d1 CW |
7320 | DRM_ERROR("no such CRTC id\n"); |
7321 | return -EINVAL; | |
7322 | } | |
7323 | ||
c05422d5 DV |
7324 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
7325 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 7326 | |
c05422d5 | 7327 | return 0; |
08d7b3d1 CW |
7328 | } |
7329 | ||
66a9278e | 7330 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 7331 | { |
66a9278e DV |
7332 | struct drm_device *dev = encoder->base.dev; |
7333 | struct intel_encoder *source_encoder; | |
79e53945 | 7334 | int index_mask = 0; |
79e53945 JB |
7335 | int entry = 0; |
7336 | ||
66a9278e DV |
7337 | list_for_each_entry(source_encoder, |
7338 | &dev->mode_config.encoder_list, base.head) { | |
7339 | ||
7340 | if (encoder == source_encoder) | |
79e53945 | 7341 | index_mask |= (1 << entry); |
66a9278e DV |
7342 | |
7343 | /* Intel hw has only one MUX where enocoders could be cloned. */ | |
7344 | if (encoder->cloneable && source_encoder->cloneable) | |
7345 | index_mask |= (1 << entry); | |
7346 | ||
79e53945 JB |
7347 | entry++; |
7348 | } | |
4ef69c7a | 7349 | |
79e53945 JB |
7350 | return index_mask; |
7351 | } | |
7352 | ||
4d302442 CW |
7353 | static bool has_edp_a(struct drm_device *dev) |
7354 | { | |
7355 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7356 | ||
7357 | if (!IS_MOBILE(dev)) | |
7358 | return false; | |
7359 | ||
7360 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
7361 | return false; | |
7362 | ||
7363 | if (IS_GEN5(dev) && | |
7364 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) | |
7365 | return false; | |
7366 | ||
7367 | return true; | |
7368 | } | |
7369 | ||
79e53945 JB |
7370 | static void intel_setup_outputs(struct drm_device *dev) |
7371 | { | |
725e30ad | 7372 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 7373 | struct intel_encoder *encoder; |
cb0953d7 | 7374 | bool dpd_is_edp = false; |
f3cfcba6 | 7375 | bool has_lvds; |
79e53945 | 7376 | |
f3cfcba6 | 7377 | has_lvds = intel_lvds_init(dev); |
c5d1b51d CW |
7378 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
7379 | /* disable the panel fitter on everything but LVDS */ | |
7380 | I915_WRITE(PFIT_CONTROL, 0); | |
7381 | } | |
79e53945 | 7382 | |
bad720ff | 7383 | if (HAS_PCH_SPLIT(dev)) { |
cb0953d7 | 7384 | dpd_is_edp = intel_dpd_is_edp(dev); |
30ad48b7 | 7385 | |
4d302442 | 7386 | if (has_edp_a(dev)) |
ab9d7c30 | 7387 | intel_dp_init(dev, DP_A, PORT_A); |
32f9d658 | 7388 | |
cb0953d7 | 7389 | if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
ab9d7c30 | 7390 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
cb0953d7 AJ |
7391 | } |
7392 | ||
7393 | intel_crt_init(dev); | |
7394 | ||
0e72a5b5 ED |
7395 | if (IS_HASWELL(dev)) { |
7396 | int found; | |
7397 | ||
7398 | /* Haswell uses DDI functions to detect digital outputs */ | |
7399 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; | |
7400 | /* DDI A only supports eDP */ | |
7401 | if (found) | |
7402 | intel_ddi_init(dev, PORT_A); | |
7403 | ||
7404 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
7405 | * register */ | |
7406 | found = I915_READ(SFUSE_STRAP); | |
7407 | ||
7408 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
7409 | intel_ddi_init(dev, PORT_B); | |
7410 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
7411 | intel_ddi_init(dev, PORT_C); | |
7412 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
7413 | intel_ddi_init(dev, PORT_D); | |
7414 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 AJ |
7415 | int found; |
7416 | ||
30ad48b7 | 7417 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
461ed3ca | 7418 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 7419 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 | 7420 | if (!found) |
08d644ad | 7421 | intel_hdmi_init(dev, HDMIB, PORT_B); |
5eb08b69 | 7422 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 7423 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
7424 | } |
7425 | ||
7426 | if (I915_READ(HDMIC) & PORT_DETECTED) | |
08d644ad | 7427 | intel_hdmi_init(dev, HDMIC, PORT_C); |
30ad48b7 | 7428 | |
b708a1d5 | 7429 | if (!dpd_is_edp && I915_READ(HDMID) & PORT_DETECTED) |
08d644ad | 7430 | intel_hdmi_init(dev, HDMID, PORT_D); |
30ad48b7 | 7431 | |
5eb08b69 | 7432 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 7433 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 7434 | |
cb0953d7 | 7435 | if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
ab9d7c30 | 7436 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
4a87d65d JB |
7437 | } else if (IS_VALLEYVIEW(dev)) { |
7438 | int found; | |
7439 | ||
7440 | if (I915_READ(SDVOB) & PORT_DETECTED) { | |
7441 | /* SDVOB multiplex with HDMIB */ | |
7442 | found = intel_sdvo_init(dev, SDVOB, true); | |
7443 | if (!found) | |
08d644ad | 7444 | intel_hdmi_init(dev, SDVOB, PORT_B); |
4a87d65d | 7445 | if (!found && (I915_READ(DP_B) & DP_DETECTED)) |
ab9d7c30 | 7446 | intel_dp_init(dev, DP_B, PORT_B); |
4a87d65d JB |
7447 | } |
7448 | ||
7449 | if (I915_READ(SDVOC) & PORT_DETECTED) | |
08d644ad | 7450 | intel_hdmi_init(dev, SDVOC, PORT_C); |
5eb08b69 | 7451 | |
4a87d65d JB |
7452 | /* Shares lanes with HDMI on SDVOC */ |
7453 | if (I915_READ(DP_C) & DP_DETECTED) | |
ab9d7c30 | 7454 | intel_dp_init(dev, DP_C, PORT_C); |
103a196f | 7455 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 7456 | bool found = false; |
7d57382e | 7457 | |
725e30ad | 7458 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 7459 | DRM_DEBUG_KMS("probing SDVOB\n"); |
eef4eacb | 7460 | found = intel_sdvo_init(dev, SDVOB, true); |
b01f2c3a JB |
7461 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
7462 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
08d644ad | 7463 | intel_hdmi_init(dev, SDVOB, PORT_B); |
b01f2c3a | 7464 | } |
27185ae1 | 7465 | |
b01f2c3a JB |
7466 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
7467 | DRM_DEBUG_KMS("probing DP_B\n"); | |
ab9d7c30 | 7468 | intel_dp_init(dev, DP_B, PORT_B); |
b01f2c3a | 7469 | } |
725e30ad | 7470 | } |
13520b05 KH |
7471 | |
7472 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 7473 | |
b01f2c3a JB |
7474 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
7475 | DRM_DEBUG_KMS("probing SDVOC\n"); | |
eef4eacb | 7476 | found = intel_sdvo_init(dev, SDVOC, false); |
b01f2c3a | 7477 | } |
27185ae1 ML |
7478 | |
7479 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { | |
7480 | ||
b01f2c3a JB |
7481 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
7482 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
08d644ad | 7483 | intel_hdmi_init(dev, SDVOC, PORT_C); |
b01f2c3a JB |
7484 | } |
7485 | if (SUPPORTS_INTEGRATED_DP(dev)) { | |
7486 | DRM_DEBUG_KMS("probing DP_C\n"); | |
ab9d7c30 | 7487 | intel_dp_init(dev, DP_C, PORT_C); |
b01f2c3a | 7488 | } |
725e30ad | 7489 | } |
27185ae1 | 7490 | |
b01f2c3a JB |
7491 | if (SUPPORTS_INTEGRATED_DP(dev) && |
7492 | (I915_READ(DP_D) & DP_DETECTED)) { | |
7493 | DRM_DEBUG_KMS("probing DP_D\n"); | |
ab9d7c30 | 7494 | intel_dp_init(dev, DP_D, PORT_D); |
b01f2c3a | 7495 | } |
bad720ff | 7496 | } else if (IS_GEN2(dev)) |
79e53945 JB |
7497 | intel_dvo_init(dev); |
7498 | ||
103a196f | 7499 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
7500 | intel_tv_init(dev); |
7501 | ||
4ef69c7a CW |
7502 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
7503 | encoder->base.possible_crtcs = encoder->crtc_mask; | |
7504 | encoder->base.possible_clones = | |
66a9278e | 7505 | intel_encoder_clones(encoder); |
79e53945 | 7506 | } |
47356eb6 | 7507 | |
40579abe | 7508 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) |
9fb526db | 7509 | ironlake_init_pch_refclk(dev); |
79e53945 JB |
7510 | } |
7511 | ||
7512 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
7513 | { | |
7514 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
79e53945 JB |
7515 | |
7516 | drm_framebuffer_cleanup(fb); | |
05394f39 | 7517 | drm_gem_object_unreference_unlocked(&intel_fb->obj->base); |
79e53945 JB |
7518 | |
7519 | kfree(intel_fb); | |
7520 | } | |
7521 | ||
7522 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 7523 | struct drm_file *file, |
79e53945 JB |
7524 | unsigned int *handle) |
7525 | { | |
7526 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 7527 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 7528 | |
05394f39 | 7529 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
7530 | } |
7531 | ||
7532 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
7533 | .destroy = intel_user_framebuffer_destroy, | |
7534 | .create_handle = intel_user_framebuffer_create_handle, | |
7535 | }; | |
7536 | ||
38651674 DA |
7537 | int intel_framebuffer_init(struct drm_device *dev, |
7538 | struct intel_framebuffer *intel_fb, | |
308e5bcb | 7539 | struct drm_mode_fb_cmd2 *mode_cmd, |
05394f39 | 7540 | struct drm_i915_gem_object *obj) |
79e53945 | 7541 | { |
79e53945 JB |
7542 | int ret; |
7543 | ||
05394f39 | 7544 | if (obj->tiling_mode == I915_TILING_Y) |
57cd6508 CW |
7545 | return -EINVAL; |
7546 | ||
308e5bcb | 7547 | if (mode_cmd->pitches[0] & 63) |
57cd6508 CW |
7548 | return -EINVAL; |
7549 | ||
308e5bcb | 7550 | switch (mode_cmd->pixel_format) { |
04b3924d VS |
7551 | case DRM_FORMAT_RGB332: |
7552 | case DRM_FORMAT_RGB565: | |
7553 | case DRM_FORMAT_XRGB8888: | |
b250da79 | 7554 | case DRM_FORMAT_XBGR8888: |
04b3924d VS |
7555 | case DRM_FORMAT_ARGB8888: |
7556 | case DRM_FORMAT_XRGB2101010: | |
7557 | case DRM_FORMAT_ARGB2101010: | |
308e5bcb | 7558 | /* RGB formats are common across chipsets */ |
b5626747 | 7559 | break; |
04b3924d VS |
7560 | case DRM_FORMAT_YUYV: |
7561 | case DRM_FORMAT_UYVY: | |
7562 | case DRM_FORMAT_YVYU: | |
7563 | case DRM_FORMAT_VYUY: | |
57cd6508 CW |
7564 | break; |
7565 | default: | |
aca25848 ED |
7566 | DRM_DEBUG_KMS("unsupported pixel format %u\n", |
7567 | mode_cmd->pixel_format); | |
57cd6508 CW |
7568 | return -EINVAL; |
7569 | } | |
7570 | ||
79e53945 JB |
7571 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
7572 | if (ret) { | |
7573 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
7574 | return ret; | |
7575 | } | |
7576 | ||
7577 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); | |
79e53945 | 7578 | intel_fb->obj = obj; |
79e53945 JB |
7579 | return 0; |
7580 | } | |
7581 | ||
79e53945 JB |
7582 | static struct drm_framebuffer * |
7583 | intel_user_framebuffer_create(struct drm_device *dev, | |
7584 | struct drm_file *filp, | |
308e5bcb | 7585 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 7586 | { |
05394f39 | 7587 | struct drm_i915_gem_object *obj; |
79e53945 | 7588 | |
308e5bcb JB |
7589 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
7590 | mode_cmd->handles[0])); | |
c8725226 | 7591 | if (&obj->base == NULL) |
cce13ff7 | 7592 | return ERR_PTR(-ENOENT); |
79e53945 | 7593 | |
d2dff872 | 7594 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
7595 | } |
7596 | ||
79e53945 | 7597 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 7598 | .fb_create = intel_user_framebuffer_create, |
eb1f8e4f | 7599 | .output_poll_changed = intel_fb_output_poll_changed, |
79e53945 JB |
7600 | }; |
7601 | ||
e70236a8 JB |
7602 | /* Set up chip specific display functions */ |
7603 | static void intel_init_display(struct drm_device *dev) | |
7604 | { | |
7605 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7606 | ||
7607 | /* We always want a DPMS function */ | |
f564048e | 7608 | if (HAS_PCH_SPLIT(dev)) { |
f564048e | 7609 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
76e5a89c DV |
7610 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
7611 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
ee7b9f93 | 7612 | dev_priv->display.off = ironlake_crtc_off; |
17638cd6 | 7613 | dev_priv->display.update_plane = ironlake_update_plane; |
f564048e | 7614 | } else { |
f564048e | 7615 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
76e5a89c DV |
7616 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
7617 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
ee7b9f93 | 7618 | dev_priv->display.off = i9xx_crtc_off; |
17638cd6 | 7619 | dev_priv->display.update_plane = i9xx_update_plane; |
f564048e | 7620 | } |
e70236a8 | 7621 | |
e70236a8 | 7622 | /* Returns the core display clock speed */ |
25eb05fc JB |
7623 | if (IS_VALLEYVIEW(dev)) |
7624 | dev_priv->display.get_display_clock_speed = | |
7625 | valleyview_get_display_clock_speed; | |
7626 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) | |
e70236a8 JB |
7627 | dev_priv->display.get_display_clock_speed = |
7628 | i945_get_display_clock_speed; | |
7629 | else if (IS_I915G(dev)) | |
7630 | dev_priv->display.get_display_clock_speed = | |
7631 | i915_get_display_clock_speed; | |
f2b115e6 | 7632 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
7633 | dev_priv->display.get_display_clock_speed = |
7634 | i9xx_misc_get_display_clock_speed; | |
7635 | else if (IS_I915GM(dev)) | |
7636 | dev_priv->display.get_display_clock_speed = | |
7637 | i915gm_get_display_clock_speed; | |
7638 | else if (IS_I865G(dev)) | |
7639 | dev_priv->display.get_display_clock_speed = | |
7640 | i865_get_display_clock_speed; | |
f0f8a9ce | 7641 | else if (IS_I85X(dev)) |
e70236a8 JB |
7642 | dev_priv->display.get_display_clock_speed = |
7643 | i855_get_display_clock_speed; | |
7644 | else /* 852, 830 */ | |
7645 | dev_priv->display.get_display_clock_speed = | |
7646 | i830_get_display_clock_speed; | |
7647 | ||
7f8a8569 | 7648 | if (HAS_PCH_SPLIT(dev)) { |
f00a3ddf | 7649 | if (IS_GEN5(dev)) { |
674cf967 | 7650 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
e0dac65e | 7651 | dev_priv->display.write_eld = ironlake_write_eld; |
1398261a | 7652 | } else if (IS_GEN6(dev)) { |
674cf967 | 7653 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
e0dac65e | 7654 | dev_priv->display.write_eld = ironlake_write_eld; |
357555c0 JB |
7655 | } else if (IS_IVYBRIDGE(dev)) { |
7656 | /* FIXME: detect B0+ stepping and use auto training */ | |
7657 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
e0dac65e | 7658 | dev_priv->display.write_eld = ironlake_write_eld; |
c82e4d26 ED |
7659 | } else if (IS_HASWELL(dev)) { |
7660 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; | |
83358c85 | 7661 | dev_priv->display.write_eld = haswell_write_eld; |
7f8a8569 ZW |
7662 | } else |
7663 | dev_priv->display.update_wm = NULL; | |
6067aaea | 7664 | } else if (IS_G4X(dev)) { |
e0dac65e | 7665 | dev_priv->display.write_eld = g4x_write_eld; |
e70236a8 | 7666 | } |
8c9f3aaf JB |
7667 | |
7668 | /* Default just returns -ENODEV to indicate unsupported */ | |
7669 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
7670 | ||
7671 | switch (INTEL_INFO(dev)->gen) { | |
7672 | case 2: | |
7673 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
7674 | break; | |
7675 | ||
7676 | case 3: | |
7677 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
7678 | break; | |
7679 | ||
7680 | case 4: | |
7681 | case 5: | |
7682 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
7683 | break; | |
7684 | ||
7685 | case 6: | |
7686 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
7687 | break; | |
7c9017e5 JB |
7688 | case 7: |
7689 | dev_priv->display.queue_flip = intel_gen7_queue_flip; | |
7690 | break; | |
8c9f3aaf | 7691 | } |
e70236a8 JB |
7692 | } |
7693 | ||
b690e96c JB |
7694 | /* |
7695 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
7696 | * resume, or other times. This quirk makes sure that's the case for | |
7697 | * affected systems. | |
7698 | */ | |
0206e353 | 7699 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
7700 | { |
7701 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7702 | ||
7703 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 7704 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
7705 | } |
7706 | ||
435793df KP |
7707 | /* |
7708 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
7709 | */ | |
7710 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
7711 | { | |
7712 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7713 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 7714 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
7715 | } |
7716 | ||
4dca20ef | 7717 | /* |
5a15ab5b CE |
7718 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
7719 | * brightness value | |
4dca20ef CE |
7720 | */ |
7721 | static void quirk_invert_brightness(struct drm_device *dev) | |
7722 | { | |
7723 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7724 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 7725 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
7726 | } |
7727 | ||
b690e96c JB |
7728 | struct intel_quirk { |
7729 | int device; | |
7730 | int subsystem_vendor; | |
7731 | int subsystem_device; | |
7732 | void (*hook)(struct drm_device *dev); | |
7733 | }; | |
7734 | ||
c43b5634 | 7735 | static struct intel_quirk intel_quirks[] = { |
b690e96c | 7736 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
0206e353 | 7737 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
b690e96c | 7738 | |
b690e96c JB |
7739 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
7740 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
7741 | ||
b690e96c JB |
7742 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
7743 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
7744 | ||
7745 | /* 855 & before need to leave pipe A & dpll A up */ | |
7746 | { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
7747 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
dcdaed6e | 7748 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
435793df KP |
7749 | |
7750 | /* Lenovo U160 cannot use SSC on LVDS */ | |
7751 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
7752 | |
7753 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
7754 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b CE |
7755 | |
7756 | /* Acer Aspire 5734Z must invert backlight brightness */ | |
7757 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
b690e96c JB |
7758 | }; |
7759 | ||
7760 | static void intel_init_quirks(struct drm_device *dev) | |
7761 | { | |
7762 | struct pci_dev *d = dev->pdev; | |
7763 | int i; | |
7764 | ||
7765 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
7766 | struct intel_quirk *q = &intel_quirks[i]; | |
7767 | ||
7768 | if (d->device == q->device && | |
7769 | (d->subsystem_vendor == q->subsystem_vendor || | |
7770 | q->subsystem_vendor == PCI_ANY_ID) && | |
7771 | (d->subsystem_device == q->subsystem_device || | |
7772 | q->subsystem_device == PCI_ANY_ID)) | |
7773 | q->hook(dev); | |
7774 | } | |
7775 | } | |
7776 | ||
9cce37f4 JB |
7777 | /* Disable the VGA plane that we never use */ |
7778 | static void i915_disable_vga(struct drm_device *dev) | |
7779 | { | |
7780 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7781 | u8 sr1; | |
7782 | u32 vga_reg; | |
7783 | ||
7784 | if (HAS_PCH_SPLIT(dev)) | |
7785 | vga_reg = CPU_VGACNTRL; | |
7786 | else | |
7787 | vga_reg = VGACNTRL; | |
7788 | ||
7789 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); | |
3fdcf431 | 7790 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
7791 | sr1 = inb(VGA_SR_DATA); |
7792 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
7793 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
7794 | udelay(300); | |
7795 | ||
7796 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
7797 | POSTING_READ(vga_reg); | |
7798 | } | |
7799 | ||
f817586c DV |
7800 | void intel_modeset_init_hw(struct drm_device *dev) |
7801 | { | |
0232e927 ED |
7802 | /* We attempt to init the necessary power wells early in the initialization |
7803 | * time, so the subsystems that expect power to be enabled can work. | |
7804 | */ | |
7805 | intel_init_power_wells(dev); | |
7806 | ||
a8f78b58 ED |
7807 | intel_prepare_ddi(dev); |
7808 | ||
f817586c DV |
7809 | intel_init_clock_gating(dev); |
7810 | ||
79f5b2c7 | 7811 | mutex_lock(&dev->struct_mutex); |
8090c6b9 | 7812 | intel_enable_gt_powersave(dev); |
79f5b2c7 | 7813 | mutex_unlock(&dev->struct_mutex); |
f817586c DV |
7814 | } |
7815 | ||
79e53945 JB |
7816 | void intel_modeset_init(struct drm_device *dev) |
7817 | { | |
652c393a | 7818 | struct drm_i915_private *dev_priv = dev->dev_private; |
b840d907 | 7819 | int i, ret; |
79e53945 JB |
7820 | |
7821 | drm_mode_config_init(dev); | |
7822 | ||
7823 | dev->mode_config.min_width = 0; | |
7824 | dev->mode_config.min_height = 0; | |
7825 | ||
019d96cb DA |
7826 | dev->mode_config.preferred_depth = 24; |
7827 | dev->mode_config.prefer_shadow = 1; | |
7828 | ||
e6ecefaa | 7829 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 7830 | |
b690e96c JB |
7831 | intel_init_quirks(dev); |
7832 | ||
1fa61106 ED |
7833 | intel_init_pm(dev); |
7834 | ||
e70236a8 JB |
7835 | intel_init_display(dev); |
7836 | ||
a6c45cf0 CW |
7837 | if (IS_GEN2(dev)) { |
7838 | dev->mode_config.max_width = 2048; | |
7839 | dev->mode_config.max_height = 2048; | |
7840 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
7841 | dev->mode_config.max_width = 4096; |
7842 | dev->mode_config.max_height = 4096; | |
79e53945 | 7843 | } else { |
a6c45cf0 CW |
7844 | dev->mode_config.max_width = 8192; |
7845 | dev->mode_config.max_height = 8192; | |
79e53945 | 7846 | } |
dd2757f8 | 7847 | dev->mode_config.fb_base = dev_priv->mm.gtt_base_addr; |
79e53945 | 7848 | |
28c97730 | 7849 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
a3524f1b | 7850 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
79e53945 | 7851 | |
a3524f1b | 7852 | for (i = 0; i < dev_priv->num_pipe; i++) { |
79e53945 | 7853 | intel_crtc_init(dev, i); |
00c2064b JB |
7854 | ret = intel_plane_init(dev, i); |
7855 | if (ret) | |
7856 | DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret); | |
79e53945 JB |
7857 | } |
7858 | ||
ee7b9f93 JB |
7859 | intel_pch_pll_init(dev); |
7860 | ||
9cce37f4 JB |
7861 | /* Just disable it once at startup */ |
7862 | i915_disable_vga(dev); | |
79e53945 | 7863 | intel_setup_outputs(dev); |
2c7111db CW |
7864 | } |
7865 | ||
24929352 DV |
7866 | static void |
7867 | intel_connector_break_all_links(struct intel_connector *connector) | |
7868 | { | |
7869 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
7870 | connector->base.encoder = NULL; | |
7871 | connector->encoder->connectors_active = false; | |
7872 | connector->encoder->base.crtc = NULL; | |
7873 | } | |
7874 | ||
7fad798e DV |
7875 | static void intel_enable_pipe_a(struct drm_device *dev) |
7876 | { | |
7877 | struct intel_connector *connector; | |
7878 | struct drm_connector *crt = NULL; | |
7879 | struct intel_load_detect_pipe load_detect_temp; | |
7880 | ||
7881 | /* We can't just switch on the pipe A, we need to set things up with a | |
7882 | * proper mode and output configuration. As a gross hack, enable pipe A | |
7883 | * by enabling the load detect pipe once. */ | |
7884 | list_for_each_entry(connector, | |
7885 | &dev->mode_config.connector_list, | |
7886 | base.head) { | |
7887 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { | |
7888 | crt = &connector->base; | |
7889 | break; | |
7890 | } | |
7891 | } | |
7892 | ||
7893 | if (!crt) | |
7894 | return; | |
7895 | ||
7896 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp)) | |
7897 | intel_release_load_detect_pipe(crt, &load_detect_temp); | |
7898 | ||
7899 | ||
7900 | } | |
7901 | ||
24929352 DV |
7902 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
7903 | { | |
7904 | struct drm_device *dev = crtc->base.dev; | |
7905 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7906 | u32 reg, val; | |
7907 | ||
24929352 DV |
7908 | /* Clear any frame start delays used for debugging left by the BIOS */ |
7909 | reg = PIPECONF(crtc->pipe); | |
7910 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); | |
7911 | ||
7912 | /* We need to sanitize the plane -> pipe mapping first because this will | |
7913 | * disable the crtc (and hence change the state) if it is wrong. */ | |
7914 | if (!HAS_PCH_SPLIT(dev)) { | |
7915 | struct intel_connector *connector; | |
7916 | bool plane; | |
7917 | ||
7918 | reg = DSPCNTR(crtc->plane); | |
7919 | val = I915_READ(reg); | |
7920 | ||
7921 | if ((val & DISPLAY_PLANE_ENABLE) == 0 && | |
7922 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
7923 | goto ok; | |
7924 | ||
7925 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", | |
7926 | crtc->base.base.id); | |
7927 | ||
7928 | /* Pipe has the wrong plane attached and the plane is active. | |
7929 | * Temporarily change the plane mapping and disable everything | |
7930 | * ... */ | |
7931 | plane = crtc->plane; | |
7932 | crtc->plane = !plane; | |
7933 | dev_priv->display.crtc_disable(&crtc->base); | |
7934 | crtc->plane = plane; | |
7935 | ||
7936 | /* ... and break all links. */ | |
7937 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
7938 | base.head) { | |
7939 | if (connector->encoder->base.crtc != &crtc->base) | |
7940 | continue; | |
7941 | ||
7942 | intel_connector_break_all_links(connector); | |
7943 | } | |
7944 | ||
7945 | WARN_ON(crtc->active); | |
7946 | crtc->base.enabled = false; | |
7947 | } | |
7948 | ok: | |
7949 | ||
7fad798e DV |
7950 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
7951 | crtc->pipe == PIPE_A && !crtc->active) { | |
7952 | /* BIOS forgot to enable pipe A, this mostly happens after | |
7953 | * resume. Force-enable the pipe to fix this, the update_dpms | |
7954 | * call below we restore the pipe to the right state, but leave | |
7955 | * the required bits on. */ | |
7956 | intel_enable_pipe_a(dev); | |
7957 | } | |
7958 | ||
24929352 DV |
7959 | /* Adjust the state of the output pipe according to whether we |
7960 | * have active connectors/encoders. */ | |
7961 | intel_crtc_update_dpms(&crtc->base); | |
7962 | ||
7963 | if (crtc->active != crtc->base.enabled) { | |
7964 | struct intel_encoder *encoder; | |
7965 | ||
7966 | /* This can happen either due to bugs in the get_hw_state | |
7967 | * functions or because the pipe is force-enabled due to the | |
7968 | * pipe A quirk. */ | |
7969 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", | |
7970 | crtc->base.base.id, | |
7971 | crtc->base.enabled ? "enabled" : "disabled", | |
7972 | crtc->active ? "enabled" : "disabled"); | |
7973 | ||
7974 | crtc->base.enabled = crtc->active; | |
7975 | ||
7976 | /* Because we only establish the connector -> encoder -> | |
7977 | * crtc links if something is active, this means the | |
7978 | * crtc is now deactivated. Break the links. connector | |
7979 | * -> encoder links are only establish when things are | |
7980 | * actually up, hence no need to break them. */ | |
7981 | WARN_ON(crtc->active); | |
7982 | ||
7983 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { | |
7984 | WARN_ON(encoder->connectors_active); | |
7985 | encoder->base.crtc = NULL; | |
7986 | } | |
7987 | } | |
7988 | } | |
7989 | ||
7990 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
7991 | { | |
7992 | struct intel_connector *connector; | |
7993 | struct drm_device *dev = encoder->base.dev; | |
7994 | ||
7995 | /* We need to check both for a crtc link (meaning that the | |
7996 | * encoder is active and trying to read from a pipe) and the | |
7997 | * pipe itself being active. */ | |
7998 | bool has_active_crtc = encoder->base.crtc && | |
7999 | to_intel_crtc(encoder->base.crtc)->active; | |
8000 | ||
8001 | if (encoder->connectors_active && !has_active_crtc) { | |
8002 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", | |
8003 | encoder->base.base.id, | |
8004 | drm_get_encoder_name(&encoder->base)); | |
8005 | ||
8006 | /* Connector is active, but has no active pipe. This is | |
8007 | * fallout from our resume register restoring. Disable | |
8008 | * the encoder manually again. */ | |
8009 | if (encoder->base.crtc) { | |
8010 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
8011 | encoder->base.base.id, | |
8012 | drm_get_encoder_name(&encoder->base)); | |
8013 | encoder->disable(encoder); | |
8014 | } | |
8015 | ||
8016 | /* Inconsistent output/port/pipe state happens presumably due to | |
8017 | * a bug in one of the get_hw_state functions. Or someplace else | |
8018 | * in our code, like the register restore mess on resume. Clamp | |
8019 | * things to off as a safer default. */ | |
8020 | list_for_each_entry(connector, | |
8021 | &dev->mode_config.connector_list, | |
8022 | base.head) { | |
8023 | if (connector->encoder != encoder) | |
8024 | continue; | |
8025 | ||
8026 | intel_connector_break_all_links(connector); | |
8027 | } | |
8028 | } | |
8029 | /* Enabled encoders without active connectors will be fixed in | |
8030 | * the crtc fixup. */ | |
8031 | } | |
8032 | ||
8033 | /* Scan out the current hw modeset state, sanitizes it and maps it into the drm | |
8034 | * and i915 state tracking structures. */ | |
8035 | void intel_modeset_setup_hw_state(struct drm_device *dev) | |
8036 | { | |
8037 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8038 | enum pipe pipe; | |
8039 | u32 tmp; | |
8040 | struct intel_crtc *crtc; | |
8041 | struct intel_encoder *encoder; | |
8042 | struct intel_connector *connector; | |
8043 | ||
8044 | for_each_pipe(pipe) { | |
8045 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
8046 | ||
8047 | tmp = I915_READ(PIPECONF(pipe)); | |
8048 | if (tmp & PIPECONF_ENABLE) | |
8049 | crtc->active = true; | |
8050 | else | |
8051 | crtc->active = false; | |
8052 | ||
8053 | crtc->base.enabled = crtc->active; | |
8054 | ||
8055 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
8056 | crtc->base.base.id, | |
8057 | crtc->active ? "enabled" : "disabled"); | |
8058 | } | |
8059 | ||
8060 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8061 | base.head) { | |
8062 | pipe = 0; | |
8063 | ||
8064 | if (encoder->get_hw_state(encoder, &pipe)) { | |
8065 | encoder->base.crtc = | |
8066 | dev_priv->pipe_to_crtc_mapping[pipe]; | |
8067 | } else { | |
8068 | encoder->base.crtc = NULL; | |
8069 | } | |
8070 | ||
8071 | encoder->connectors_active = false; | |
8072 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n", | |
8073 | encoder->base.base.id, | |
8074 | drm_get_encoder_name(&encoder->base), | |
8075 | encoder->base.crtc ? "enabled" : "disabled", | |
8076 | pipe); | |
8077 | } | |
8078 | ||
8079 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
8080 | base.head) { | |
8081 | if (connector->get_hw_state(connector)) { | |
8082 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
8083 | connector->encoder->connectors_active = true; | |
8084 | connector->base.encoder = &connector->encoder->base; | |
8085 | } else { | |
8086 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
8087 | connector->base.encoder = NULL; | |
8088 | } | |
8089 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
8090 | connector->base.base.id, | |
8091 | drm_get_connector_name(&connector->base), | |
8092 | connector->base.encoder ? "enabled" : "disabled"); | |
8093 | } | |
8094 | ||
8095 | /* HW state is read out, now we need to sanitize this mess. */ | |
8096 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8097 | base.head) { | |
8098 | intel_sanitize_encoder(encoder); | |
8099 | } | |
8100 | ||
8101 | for_each_pipe(pipe) { | |
8102 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
8103 | intel_sanitize_crtc(crtc); | |
8104 | } | |
9a935856 DV |
8105 | |
8106 | intel_modeset_update_staged_output_state(dev); | |
24929352 DV |
8107 | } |
8108 | ||
2c7111db CW |
8109 | void intel_modeset_gem_init(struct drm_device *dev) |
8110 | { | |
1833b134 | 8111 | intel_modeset_init_hw(dev); |
02e792fb DV |
8112 | |
8113 | intel_setup_overlay(dev); | |
24929352 DV |
8114 | |
8115 | intel_modeset_setup_hw_state(dev); | |
79e53945 JB |
8116 | } |
8117 | ||
8118 | void intel_modeset_cleanup(struct drm_device *dev) | |
8119 | { | |
652c393a JB |
8120 | struct drm_i915_private *dev_priv = dev->dev_private; |
8121 | struct drm_crtc *crtc; | |
8122 | struct intel_crtc *intel_crtc; | |
8123 | ||
f87ea761 | 8124 | drm_kms_helper_poll_fini(dev); |
652c393a JB |
8125 | mutex_lock(&dev->struct_mutex); |
8126 | ||
723bfd70 JB |
8127 | intel_unregister_dsm_handler(); |
8128 | ||
8129 | ||
652c393a JB |
8130 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
8131 | /* Skip inactive CRTCs */ | |
8132 | if (!crtc->fb) | |
8133 | continue; | |
8134 | ||
8135 | intel_crtc = to_intel_crtc(crtc); | |
3dec0095 | 8136 | intel_increase_pllclock(crtc); |
652c393a JB |
8137 | } |
8138 | ||
973d04f9 | 8139 | intel_disable_fbc(dev); |
e70236a8 | 8140 | |
8090c6b9 | 8141 | intel_disable_gt_powersave(dev); |
0cdab21f | 8142 | |
930ebb46 DV |
8143 | ironlake_teardown_rc6(dev); |
8144 | ||
57f350b6 JB |
8145 | if (IS_VALLEYVIEW(dev)) |
8146 | vlv_init_dpio(dev); | |
8147 | ||
69341a5e KH |
8148 | mutex_unlock(&dev->struct_mutex); |
8149 | ||
6c0d9350 DV |
8150 | /* Disable the irq before mode object teardown, for the irq might |
8151 | * enqueue unpin/hotplug work. */ | |
8152 | drm_irq_uninstall(dev); | |
8153 | cancel_work_sync(&dev_priv->hotplug_work); | |
c6a828d3 | 8154 | cancel_work_sync(&dev_priv->rps.work); |
6c0d9350 | 8155 | |
1630fe75 CW |
8156 | /* flush any delayed tasks or pending work */ |
8157 | flush_scheduled_work(); | |
8158 | ||
79e53945 JB |
8159 | drm_mode_config_cleanup(dev); |
8160 | } | |
8161 | ||
f1c79df3 ZW |
8162 | /* |
8163 | * Return which encoder is currently attached for connector. | |
8164 | */ | |
df0e9248 | 8165 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 8166 | { |
df0e9248 CW |
8167 | return &intel_attached_encoder(connector)->base; |
8168 | } | |
f1c79df3 | 8169 | |
df0e9248 CW |
8170 | void intel_connector_attach_encoder(struct intel_connector *connector, |
8171 | struct intel_encoder *encoder) | |
8172 | { | |
8173 | connector->encoder = encoder; | |
8174 | drm_mode_connector_attach_encoder(&connector->base, | |
8175 | &encoder->base); | |
79e53945 | 8176 | } |
28d52043 DA |
8177 | |
8178 | /* | |
8179 | * set vga decode state - true == enable VGA decode | |
8180 | */ | |
8181 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
8182 | { | |
8183 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8184 | u16 gmch_ctrl; | |
8185 | ||
8186 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
8187 | if (state) | |
8188 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
8189 | else | |
8190 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
8191 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
8192 | return 0; | |
8193 | } | |
c4a1d9e4 CW |
8194 | |
8195 | #ifdef CONFIG_DEBUG_FS | |
8196 | #include <linux/seq_file.h> | |
8197 | ||
8198 | struct intel_display_error_state { | |
8199 | struct intel_cursor_error_state { | |
8200 | u32 control; | |
8201 | u32 position; | |
8202 | u32 base; | |
8203 | u32 size; | |
52331309 | 8204 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
8205 | |
8206 | struct intel_pipe_error_state { | |
8207 | u32 conf; | |
8208 | u32 source; | |
8209 | ||
8210 | u32 htotal; | |
8211 | u32 hblank; | |
8212 | u32 hsync; | |
8213 | u32 vtotal; | |
8214 | u32 vblank; | |
8215 | u32 vsync; | |
52331309 | 8216 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
8217 | |
8218 | struct intel_plane_error_state { | |
8219 | u32 control; | |
8220 | u32 stride; | |
8221 | u32 size; | |
8222 | u32 pos; | |
8223 | u32 addr; | |
8224 | u32 surface; | |
8225 | u32 tile_offset; | |
52331309 | 8226 | } plane[I915_MAX_PIPES]; |
c4a1d9e4 CW |
8227 | }; |
8228 | ||
8229 | struct intel_display_error_state * | |
8230 | intel_display_capture_error_state(struct drm_device *dev) | |
8231 | { | |
0206e353 | 8232 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
8233 | struct intel_display_error_state *error; |
8234 | int i; | |
8235 | ||
8236 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
8237 | if (error == NULL) | |
8238 | return NULL; | |
8239 | ||
52331309 | 8240 | for_each_pipe(i) { |
c4a1d9e4 CW |
8241 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
8242 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
8243 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
8244 | ||
8245 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
8246 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
8247 | error->plane[i].size = I915_READ(DSPSIZE(i)); | |
0206e353 | 8248 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
c4a1d9e4 CW |
8249 | error->plane[i].addr = I915_READ(DSPADDR(i)); |
8250 | if (INTEL_INFO(dev)->gen >= 4) { | |
8251 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
8252 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
8253 | } | |
8254 | ||
8255 | error->pipe[i].conf = I915_READ(PIPECONF(i)); | |
8256 | error->pipe[i].source = I915_READ(PIPESRC(i)); | |
8257 | error->pipe[i].htotal = I915_READ(HTOTAL(i)); | |
8258 | error->pipe[i].hblank = I915_READ(HBLANK(i)); | |
8259 | error->pipe[i].hsync = I915_READ(HSYNC(i)); | |
8260 | error->pipe[i].vtotal = I915_READ(VTOTAL(i)); | |
8261 | error->pipe[i].vblank = I915_READ(VBLANK(i)); | |
8262 | error->pipe[i].vsync = I915_READ(VSYNC(i)); | |
8263 | } | |
8264 | ||
8265 | return error; | |
8266 | } | |
8267 | ||
8268 | void | |
8269 | intel_display_print_error_state(struct seq_file *m, | |
8270 | struct drm_device *dev, | |
8271 | struct intel_display_error_state *error) | |
8272 | { | |
52331309 | 8273 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
8274 | int i; |
8275 | ||
52331309 DL |
8276 | seq_printf(m, "Num Pipes: %d\n", dev_priv->num_pipe); |
8277 | for_each_pipe(i) { | |
c4a1d9e4 CW |
8278 | seq_printf(m, "Pipe [%d]:\n", i); |
8279 | seq_printf(m, " CONF: %08x\n", error->pipe[i].conf); | |
8280 | seq_printf(m, " SRC: %08x\n", error->pipe[i].source); | |
8281 | seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); | |
8282 | seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); | |
8283 | seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); | |
8284 | seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); | |
8285 | seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); | |
8286 | seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); | |
8287 | ||
8288 | seq_printf(m, "Plane [%d]:\n", i); | |
8289 | seq_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
8290 | seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
8291 | seq_printf(m, " SIZE: %08x\n", error->plane[i].size); | |
8292 | seq_printf(m, " POS: %08x\n", error->plane[i].pos); | |
8293 | seq_printf(m, " ADDR: %08x\n", error->plane[i].addr); | |
8294 | if (INTEL_INFO(dev)->gen >= 4) { | |
8295 | seq_printf(m, " SURF: %08x\n", error->plane[i].surface); | |
8296 | seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
8297 | } | |
8298 | ||
8299 | seq_printf(m, "Cursor [%d]:\n", i); | |
8300 | seq_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
8301 | seq_printf(m, " POS: %08x\n", error->cursor[i].position); | |
8302 | seq_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
8303 | } | |
8304 | } | |
8305 | #endif |