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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 | ||
c1c7af60 JB |
27 | #include <linux/module.h> |
28 | #include <linux/input.h> | |
79e53945 | 29 | #include <linux/i2c.h> |
7662c8bd | 30 | #include <linux/kernel.h> |
5a0e3ad6 | 31 | #include <linux/slab.h> |
9cce37f4 | 32 | #include <linux/vgaarb.h> |
79e53945 JB |
33 | #include "drmP.h" |
34 | #include "intel_drv.h" | |
35 | #include "i915_drm.h" | |
36 | #include "i915_drv.h" | |
e5510fac | 37 | #include "i915_trace.h" |
ab2c0672 | 38 | #include "drm_dp_helper.h" |
79e53945 JB |
39 | |
40 | #include "drm_crtc_helper.h" | |
41 | ||
32f9d658 ZW |
42 | #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) |
43 | ||
79e53945 | 44 | bool intel_pipe_has_type (struct drm_crtc *crtc, int type); |
7662c8bd | 45 | static void intel_update_watermarks(struct drm_device *dev); |
652c393a | 46 | static void intel_increase_pllclock(struct drm_crtc *crtc, bool schedule); |
cda4b7d3 | 47 | static void intel_crtc_update_cursor(struct drm_crtc *crtc); |
79e53945 JB |
48 | |
49 | typedef struct { | |
50 | /* given values */ | |
51 | int n; | |
52 | int m1, m2; | |
53 | int p1, p2; | |
54 | /* derived values */ | |
55 | int dot; | |
56 | int vco; | |
57 | int m; | |
58 | int p; | |
59 | } intel_clock_t; | |
60 | ||
61 | typedef struct { | |
62 | int min, max; | |
63 | } intel_range_t; | |
64 | ||
65 | typedef struct { | |
66 | int dot_limit; | |
67 | int p2_slow, p2_fast; | |
68 | } intel_p2_t; | |
69 | ||
70 | #define INTEL_P2_NUM 2 | |
d4906093 ML |
71 | typedef struct intel_limit intel_limit_t; |
72 | struct intel_limit { | |
79e53945 JB |
73 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
74 | intel_p2_t p2; | |
d4906093 ML |
75 | bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, |
76 | int, int, intel_clock_t *); | |
77 | }; | |
79e53945 JB |
78 | |
79 | #define I8XX_DOT_MIN 25000 | |
80 | #define I8XX_DOT_MAX 350000 | |
81 | #define I8XX_VCO_MIN 930000 | |
82 | #define I8XX_VCO_MAX 1400000 | |
83 | #define I8XX_N_MIN 3 | |
84 | #define I8XX_N_MAX 16 | |
85 | #define I8XX_M_MIN 96 | |
86 | #define I8XX_M_MAX 140 | |
87 | #define I8XX_M1_MIN 18 | |
88 | #define I8XX_M1_MAX 26 | |
89 | #define I8XX_M2_MIN 6 | |
90 | #define I8XX_M2_MAX 16 | |
91 | #define I8XX_P_MIN 4 | |
92 | #define I8XX_P_MAX 128 | |
93 | #define I8XX_P1_MIN 2 | |
94 | #define I8XX_P1_MAX 33 | |
95 | #define I8XX_P1_LVDS_MIN 1 | |
96 | #define I8XX_P1_LVDS_MAX 6 | |
97 | #define I8XX_P2_SLOW 4 | |
98 | #define I8XX_P2_FAST 2 | |
99 | #define I8XX_P2_LVDS_SLOW 14 | |
0c2e3952 | 100 | #define I8XX_P2_LVDS_FAST 7 |
79e53945 JB |
101 | #define I8XX_P2_SLOW_LIMIT 165000 |
102 | ||
103 | #define I9XX_DOT_MIN 20000 | |
104 | #define I9XX_DOT_MAX 400000 | |
105 | #define I9XX_VCO_MIN 1400000 | |
106 | #define I9XX_VCO_MAX 2800000 | |
f2b115e6 AJ |
107 | #define PINEVIEW_VCO_MIN 1700000 |
108 | #define PINEVIEW_VCO_MAX 3500000 | |
f3cade5c KH |
109 | #define I9XX_N_MIN 1 |
110 | #define I9XX_N_MAX 6 | |
f2b115e6 AJ |
111 | /* Pineview's Ncounter is a ring counter */ |
112 | #define PINEVIEW_N_MIN 3 | |
113 | #define PINEVIEW_N_MAX 6 | |
79e53945 JB |
114 | #define I9XX_M_MIN 70 |
115 | #define I9XX_M_MAX 120 | |
f2b115e6 AJ |
116 | #define PINEVIEW_M_MIN 2 |
117 | #define PINEVIEW_M_MAX 256 | |
79e53945 | 118 | #define I9XX_M1_MIN 10 |
f3cade5c | 119 | #define I9XX_M1_MAX 22 |
79e53945 JB |
120 | #define I9XX_M2_MIN 5 |
121 | #define I9XX_M2_MAX 9 | |
f2b115e6 AJ |
122 | /* Pineview M1 is reserved, and must be 0 */ |
123 | #define PINEVIEW_M1_MIN 0 | |
124 | #define PINEVIEW_M1_MAX 0 | |
125 | #define PINEVIEW_M2_MIN 0 | |
126 | #define PINEVIEW_M2_MAX 254 | |
79e53945 JB |
127 | #define I9XX_P_SDVO_DAC_MIN 5 |
128 | #define I9XX_P_SDVO_DAC_MAX 80 | |
129 | #define I9XX_P_LVDS_MIN 7 | |
130 | #define I9XX_P_LVDS_MAX 98 | |
f2b115e6 AJ |
131 | #define PINEVIEW_P_LVDS_MIN 7 |
132 | #define PINEVIEW_P_LVDS_MAX 112 | |
79e53945 JB |
133 | #define I9XX_P1_MIN 1 |
134 | #define I9XX_P1_MAX 8 | |
135 | #define I9XX_P2_SDVO_DAC_SLOW 10 | |
136 | #define I9XX_P2_SDVO_DAC_FAST 5 | |
137 | #define I9XX_P2_SDVO_DAC_SLOW_LIMIT 200000 | |
138 | #define I9XX_P2_LVDS_SLOW 14 | |
139 | #define I9XX_P2_LVDS_FAST 7 | |
140 | #define I9XX_P2_LVDS_SLOW_LIMIT 112000 | |
141 | ||
044c7c41 ML |
142 | /*The parameter is for SDVO on G4x platform*/ |
143 | #define G4X_DOT_SDVO_MIN 25000 | |
144 | #define G4X_DOT_SDVO_MAX 270000 | |
145 | #define G4X_VCO_MIN 1750000 | |
146 | #define G4X_VCO_MAX 3500000 | |
147 | #define G4X_N_SDVO_MIN 1 | |
148 | #define G4X_N_SDVO_MAX 4 | |
149 | #define G4X_M_SDVO_MIN 104 | |
150 | #define G4X_M_SDVO_MAX 138 | |
151 | #define G4X_M1_SDVO_MIN 17 | |
152 | #define G4X_M1_SDVO_MAX 23 | |
153 | #define G4X_M2_SDVO_MIN 5 | |
154 | #define G4X_M2_SDVO_MAX 11 | |
155 | #define G4X_P_SDVO_MIN 10 | |
156 | #define G4X_P_SDVO_MAX 30 | |
157 | #define G4X_P1_SDVO_MIN 1 | |
158 | #define G4X_P1_SDVO_MAX 3 | |
159 | #define G4X_P2_SDVO_SLOW 10 | |
160 | #define G4X_P2_SDVO_FAST 10 | |
161 | #define G4X_P2_SDVO_LIMIT 270000 | |
162 | ||
163 | /*The parameter is for HDMI_DAC on G4x platform*/ | |
164 | #define G4X_DOT_HDMI_DAC_MIN 22000 | |
165 | #define G4X_DOT_HDMI_DAC_MAX 400000 | |
166 | #define G4X_N_HDMI_DAC_MIN 1 | |
167 | #define G4X_N_HDMI_DAC_MAX 4 | |
168 | #define G4X_M_HDMI_DAC_MIN 104 | |
169 | #define G4X_M_HDMI_DAC_MAX 138 | |
170 | #define G4X_M1_HDMI_DAC_MIN 16 | |
171 | #define G4X_M1_HDMI_DAC_MAX 23 | |
172 | #define G4X_M2_HDMI_DAC_MIN 5 | |
173 | #define G4X_M2_HDMI_DAC_MAX 11 | |
174 | #define G4X_P_HDMI_DAC_MIN 5 | |
175 | #define G4X_P_HDMI_DAC_MAX 80 | |
176 | #define G4X_P1_HDMI_DAC_MIN 1 | |
177 | #define G4X_P1_HDMI_DAC_MAX 8 | |
178 | #define G4X_P2_HDMI_DAC_SLOW 10 | |
179 | #define G4X_P2_HDMI_DAC_FAST 5 | |
180 | #define G4X_P2_HDMI_DAC_LIMIT 165000 | |
181 | ||
182 | /*The parameter is for SINGLE_CHANNEL_LVDS on G4x platform*/ | |
183 | #define G4X_DOT_SINGLE_CHANNEL_LVDS_MIN 20000 | |
184 | #define G4X_DOT_SINGLE_CHANNEL_LVDS_MAX 115000 | |
185 | #define G4X_N_SINGLE_CHANNEL_LVDS_MIN 1 | |
186 | #define G4X_N_SINGLE_CHANNEL_LVDS_MAX 3 | |
187 | #define G4X_M_SINGLE_CHANNEL_LVDS_MIN 104 | |
188 | #define G4X_M_SINGLE_CHANNEL_LVDS_MAX 138 | |
189 | #define G4X_M1_SINGLE_CHANNEL_LVDS_MIN 17 | |
190 | #define G4X_M1_SINGLE_CHANNEL_LVDS_MAX 23 | |
191 | #define G4X_M2_SINGLE_CHANNEL_LVDS_MIN 5 | |
192 | #define G4X_M2_SINGLE_CHANNEL_LVDS_MAX 11 | |
193 | #define G4X_P_SINGLE_CHANNEL_LVDS_MIN 28 | |
194 | #define G4X_P_SINGLE_CHANNEL_LVDS_MAX 112 | |
195 | #define G4X_P1_SINGLE_CHANNEL_LVDS_MIN 2 | |
196 | #define G4X_P1_SINGLE_CHANNEL_LVDS_MAX 8 | |
197 | #define G4X_P2_SINGLE_CHANNEL_LVDS_SLOW 14 | |
198 | #define G4X_P2_SINGLE_CHANNEL_LVDS_FAST 14 | |
199 | #define G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT 0 | |
200 | ||
201 | /*The parameter is for DUAL_CHANNEL_LVDS on G4x platform*/ | |
202 | #define G4X_DOT_DUAL_CHANNEL_LVDS_MIN 80000 | |
203 | #define G4X_DOT_DUAL_CHANNEL_LVDS_MAX 224000 | |
204 | #define G4X_N_DUAL_CHANNEL_LVDS_MIN 1 | |
205 | #define G4X_N_DUAL_CHANNEL_LVDS_MAX 3 | |
206 | #define G4X_M_DUAL_CHANNEL_LVDS_MIN 104 | |
207 | #define G4X_M_DUAL_CHANNEL_LVDS_MAX 138 | |
208 | #define G4X_M1_DUAL_CHANNEL_LVDS_MIN 17 | |
209 | #define G4X_M1_DUAL_CHANNEL_LVDS_MAX 23 | |
210 | #define G4X_M2_DUAL_CHANNEL_LVDS_MIN 5 | |
211 | #define G4X_M2_DUAL_CHANNEL_LVDS_MAX 11 | |
212 | #define G4X_P_DUAL_CHANNEL_LVDS_MIN 14 | |
213 | #define G4X_P_DUAL_CHANNEL_LVDS_MAX 42 | |
214 | #define G4X_P1_DUAL_CHANNEL_LVDS_MIN 2 | |
215 | #define G4X_P1_DUAL_CHANNEL_LVDS_MAX 6 | |
216 | #define G4X_P2_DUAL_CHANNEL_LVDS_SLOW 7 | |
217 | #define G4X_P2_DUAL_CHANNEL_LVDS_FAST 7 | |
218 | #define G4X_P2_DUAL_CHANNEL_LVDS_LIMIT 0 | |
219 | ||
a4fc5ed6 KP |
220 | /*The parameter is for DISPLAY PORT on G4x platform*/ |
221 | #define G4X_DOT_DISPLAY_PORT_MIN 161670 | |
222 | #define G4X_DOT_DISPLAY_PORT_MAX 227000 | |
223 | #define G4X_N_DISPLAY_PORT_MIN 1 | |
224 | #define G4X_N_DISPLAY_PORT_MAX 2 | |
225 | #define G4X_M_DISPLAY_PORT_MIN 97 | |
226 | #define G4X_M_DISPLAY_PORT_MAX 108 | |
227 | #define G4X_M1_DISPLAY_PORT_MIN 0x10 | |
228 | #define G4X_M1_DISPLAY_PORT_MAX 0x12 | |
229 | #define G4X_M2_DISPLAY_PORT_MIN 0x05 | |
230 | #define G4X_M2_DISPLAY_PORT_MAX 0x06 | |
231 | #define G4X_P_DISPLAY_PORT_MIN 10 | |
232 | #define G4X_P_DISPLAY_PORT_MAX 20 | |
233 | #define G4X_P1_DISPLAY_PORT_MIN 1 | |
234 | #define G4X_P1_DISPLAY_PORT_MAX 2 | |
235 | #define G4X_P2_DISPLAY_PORT_SLOW 10 | |
236 | #define G4X_P2_DISPLAY_PORT_FAST 10 | |
237 | #define G4X_P2_DISPLAY_PORT_LIMIT 0 | |
238 | ||
bad720ff | 239 | /* Ironlake / Sandybridge */ |
2c07245f ZW |
240 | /* as we calculate clock using (register_value + 2) for |
241 | N/M1/M2, so here the range value for them is (actual_value-2). | |
242 | */ | |
f2b115e6 AJ |
243 | #define IRONLAKE_DOT_MIN 25000 |
244 | #define IRONLAKE_DOT_MAX 350000 | |
245 | #define IRONLAKE_VCO_MIN 1760000 | |
246 | #define IRONLAKE_VCO_MAX 3510000 | |
f2b115e6 | 247 | #define IRONLAKE_M1_MIN 12 |
a59e385e | 248 | #define IRONLAKE_M1_MAX 22 |
f2b115e6 AJ |
249 | #define IRONLAKE_M2_MIN 5 |
250 | #define IRONLAKE_M2_MAX 9 | |
f2b115e6 | 251 | #define IRONLAKE_P2_DOT_LIMIT 225000 /* 225Mhz */ |
2c07245f | 252 | |
b91ad0ec ZW |
253 | /* We have parameter ranges for different type of outputs. */ |
254 | ||
255 | /* DAC & HDMI Refclk 120Mhz */ | |
256 | #define IRONLAKE_DAC_N_MIN 1 | |
257 | #define IRONLAKE_DAC_N_MAX 5 | |
258 | #define IRONLAKE_DAC_M_MIN 79 | |
259 | #define IRONLAKE_DAC_M_MAX 127 | |
260 | #define IRONLAKE_DAC_P_MIN 5 | |
261 | #define IRONLAKE_DAC_P_MAX 80 | |
262 | #define IRONLAKE_DAC_P1_MIN 1 | |
263 | #define IRONLAKE_DAC_P1_MAX 8 | |
264 | #define IRONLAKE_DAC_P2_SLOW 10 | |
265 | #define IRONLAKE_DAC_P2_FAST 5 | |
266 | ||
267 | /* LVDS single-channel 120Mhz refclk */ | |
268 | #define IRONLAKE_LVDS_S_N_MIN 1 | |
269 | #define IRONLAKE_LVDS_S_N_MAX 3 | |
270 | #define IRONLAKE_LVDS_S_M_MIN 79 | |
271 | #define IRONLAKE_LVDS_S_M_MAX 118 | |
272 | #define IRONLAKE_LVDS_S_P_MIN 28 | |
273 | #define IRONLAKE_LVDS_S_P_MAX 112 | |
274 | #define IRONLAKE_LVDS_S_P1_MIN 2 | |
275 | #define IRONLAKE_LVDS_S_P1_MAX 8 | |
276 | #define IRONLAKE_LVDS_S_P2_SLOW 14 | |
277 | #define IRONLAKE_LVDS_S_P2_FAST 14 | |
278 | ||
279 | /* LVDS dual-channel 120Mhz refclk */ | |
280 | #define IRONLAKE_LVDS_D_N_MIN 1 | |
281 | #define IRONLAKE_LVDS_D_N_MAX 3 | |
282 | #define IRONLAKE_LVDS_D_M_MIN 79 | |
283 | #define IRONLAKE_LVDS_D_M_MAX 127 | |
284 | #define IRONLAKE_LVDS_D_P_MIN 14 | |
285 | #define IRONLAKE_LVDS_D_P_MAX 56 | |
286 | #define IRONLAKE_LVDS_D_P1_MIN 2 | |
287 | #define IRONLAKE_LVDS_D_P1_MAX 8 | |
288 | #define IRONLAKE_LVDS_D_P2_SLOW 7 | |
289 | #define IRONLAKE_LVDS_D_P2_FAST 7 | |
290 | ||
291 | /* LVDS single-channel 100Mhz refclk */ | |
292 | #define IRONLAKE_LVDS_S_SSC_N_MIN 1 | |
293 | #define IRONLAKE_LVDS_S_SSC_N_MAX 2 | |
294 | #define IRONLAKE_LVDS_S_SSC_M_MIN 79 | |
295 | #define IRONLAKE_LVDS_S_SSC_M_MAX 126 | |
296 | #define IRONLAKE_LVDS_S_SSC_P_MIN 28 | |
297 | #define IRONLAKE_LVDS_S_SSC_P_MAX 112 | |
298 | #define IRONLAKE_LVDS_S_SSC_P1_MIN 2 | |
299 | #define IRONLAKE_LVDS_S_SSC_P1_MAX 8 | |
300 | #define IRONLAKE_LVDS_S_SSC_P2_SLOW 14 | |
301 | #define IRONLAKE_LVDS_S_SSC_P2_FAST 14 | |
302 | ||
303 | /* LVDS dual-channel 100Mhz refclk */ | |
304 | #define IRONLAKE_LVDS_D_SSC_N_MIN 1 | |
305 | #define IRONLAKE_LVDS_D_SSC_N_MAX 3 | |
306 | #define IRONLAKE_LVDS_D_SSC_M_MIN 79 | |
307 | #define IRONLAKE_LVDS_D_SSC_M_MAX 126 | |
308 | #define IRONLAKE_LVDS_D_SSC_P_MIN 14 | |
309 | #define IRONLAKE_LVDS_D_SSC_P_MAX 42 | |
310 | #define IRONLAKE_LVDS_D_SSC_P1_MIN 2 | |
311 | #define IRONLAKE_LVDS_D_SSC_P1_MAX 6 | |
312 | #define IRONLAKE_LVDS_D_SSC_P2_SLOW 7 | |
313 | #define IRONLAKE_LVDS_D_SSC_P2_FAST 7 | |
314 | ||
315 | /* DisplayPort */ | |
316 | #define IRONLAKE_DP_N_MIN 1 | |
317 | #define IRONLAKE_DP_N_MAX 2 | |
318 | #define IRONLAKE_DP_M_MIN 81 | |
319 | #define IRONLAKE_DP_M_MAX 90 | |
320 | #define IRONLAKE_DP_P_MIN 10 | |
321 | #define IRONLAKE_DP_P_MAX 20 | |
322 | #define IRONLAKE_DP_P2_FAST 10 | |
323 | #define IRONLAKE_DP_P2_SLOW 10 | |
324 | #define IRONLAKE_DP_P2_LIMIT 0 | |
325 | #define IRONLAKE_DP_P1_MIN 1 | |
326 | #define IRONLAKE_DP_P1_MAX 2 | |
4547668a | 327 | |
2377b741 JB |
328 | /* FDI */ |
329 | #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */ | |
330 | ||
d4906093 ML |
331 | static bool |
332 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
333 | int target, int refclk, intel_clock_t *best_clock); | |
334 | static bool | |
335 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
336 | int target, int refclk, intel_clock_t *best_clock); | |
79e53945 | 337 | |
a4fc5ed6 KP |
338 | static bool |
339 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, | |
340 | int target, int refclk, intel_clock_t *best_clock); | |
5eb08b69 | 341 | static bool |
f2b115e6 AJ |
342 | intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc, |
343 | int target, int refclk, intel_clock_t *best_clock); | |
a4fc5ed6 | 344 | |
e4b36699 | 345 | static const intel_limit_t intel_limits_i8xx_dvo = { |
79e53945 JB |
346 | .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, |
347 | .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX }, | |
348 | .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX }, | |
349 | .m = { .min = I8XX_M_MIN, .max = I8XX_M_MAX }, | |
350 | .m1 = { .min = I8XX_M1_MIN, .max = I8XX_M1_MAX }, | |
351 | .m2 = { .min = I8XX_M2_MIN, .max = I8XX_M2_MAX }, | |
352 | .p = { .min = I8XX_P_MIN, .max = I8XX_P_MAX }, | |
353 | .p1 = { .min = I8XX_P1_MIN, .max = I8XX_P1_MAX }, | |
354 | .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, | |
355 | .p2_slow = I8XX_P2_SLOW, .p2_fast = I8XX_P2_FAST }, | |
d4906093 | 356 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
357 | }; |
358 | ||
359 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
79e53945 JB |
360 | .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, |
361 | .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX }, | |
362 | .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX }, | |
363 | .m = { .min = I8XX_M_MIN, .max = I8XX_M_MAX }, | |
364 | .m1 = { .min = I8XX_M1_MIN, .max = I8XX_M1_MAX }, | |
365 | .m2 = { .min = I8XX_M2_MIN, .max = I8XX_M2_MAX }, | |
366 | .p = { .min = I8XX_P_MIN, .max = I8XX_P_MAX }, | |
367 | .p1 = { .min = I8XX_P1_LVDS_MIN, .max = I8XX_P1_LVDS_MAX }, | |
368 | .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, | |
369 | .p2_slow = I8XX_P2_LVDS_SLOW, .p2_fast = I8XX_P2_LVDS_FAST }, | |
d4906093 | 370 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
371 | }; |
372 | ||
373 | static const intel_limit_t intel_limits_i9xx_sdvo = { | |
79e53945 JB |
374 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
375 | .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX }, | |
376 | .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX }, | |
377 | .m = { .min = I9XX_M_MIN, .max = I9XX_M_MAX }, | |
378 | .m1 = { .min = I9XX_M1_MIN, .max = I9XX_M1_MAX }, | |
379 | .m2 = { .min = I9XX_M2_MIN, .max = I9XX_M2_MAX }, | |
380 | .p = { .min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX }, | |
381 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
382 | .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, | |
383 | .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, | |
d4906093 | 384 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
385 | }; |
386 | ||
387 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
79e53945 JB |
388 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
389 | .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX }, | |
390 | .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX }, | |
391 | .m = { .min = I9XX_M_MIN, .max = I9XX_M_MAX }, | |
392 | .m1 = { .min = I9XX_M1_MIN, .max = I9XX_M1_MAX }, | |
393 | .m2 = { .min = I9XX_M2_MIN, .max = I9XX_M2_MAX }, | |
394 | .p = { .min = I9XX_P_LVDS_MIN, .max = I9XX_P_LVDS_MAX }, | |
395 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
396 | /* The single-channel range is 25-112Mhz, and dual-channel | |
397 | * is 80-224Mhz. Prefer single channel as much as possible. | |
398 | */ | |
399 | .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, | |
400 | .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_FAST }, | |
d4906093 | 401 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
402 | }; |
403 | ||
044c7c41 | 404 | /* below parameter and function is for G4X Chipset Family*/ |
e4b36699 | 405 | static const intel_limit_t intel_limits_g4x_sdvo = { |
044c7c41 ML |
406 | .dot = { .min = G4X_DOT_SDVO_MIN, .max = G4X_DOT_SDVO_MAX }, |
407 | .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX}, | |
408 | .n = { .min = G4X_N_SDVO_MIN, .max = G4X_N_SDVO_MAX }, | |
409 | .m = { .min = G4X_M_SDVO_MIN, .max = G4X_M_SDVO_MAX }, | |
410 | .m1 = { .min = G4X_M1_SDVO_MIN, .max = G4X_M1_SDVO_MAX }, | |
411 | .m2 = { .min = G4X_M2_SDVO_MIN, .max = G4X_M2_SDVO_MAX }, | |
412 | .p = { .min = G4X_P_SDVO_MIN, .max = G4X_P_SDVO_MAX }, | |
413 | .p1 = { .min = G4X_P1_SDVO_MIN, .max = G4X_P1_SDVO_MAX}, | |
414 | .p2 = { .dot_limit = G4X_P2_SDVO_LIMIT, | |
415 | .p2_slow = G4X_P2_SDVO_SLOW, | |
416 | .p2_fast = G4X_P2_SDVO_FAST | |
417 | }, | |
d4906093 | 418 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
419 | }; |
420 | ||
421 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
044c7c41 ML |
422 | .dot = { .min = G4X_DOT_HDMI_DAC_MIN, .max = G4X_DOT_HDMI_DAC_MAX }, |
423 | .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX}, | |
424 | .n = { .min = G4X_N_HDMI_DAC_MIN, .max = G4X_N_HDMI_DAC_MAX }, | |
425 | .m = { .min = G4X_M_HDMI_DAC_MIN, .max = G4X_M_HDMI_DAC_MAX }, | |
426 | .m1 = { .min = G4X_M1_HDMI_DAC_MIN, .max = G4X_M1_HDMI_DAC_MAX }, | |
427 | .m2 = { .min = G4X_M2_HDMI_DAC_MIN, .max = G4X_M2_HDMI_DAC_MAX }, | |
428 | .p = { .min = G4X_P_HDMI_DAC_MIN, .max = G4X_P_HDMI_DAC_MAX }, | |
429 | .p1 = { .min = G4X_P1_HDMI_DAC_MIN, .max = G4X_P1_HDMI_DAC_MAX}, | |
430 | .p2 = { .dot_limit = G4X_P2_HDMI_DAC_LIMIT, | |
431 | .p2_slow = G4X_P2_HDMI_DAC_SLOW, | |
432 | .p2_fast = G4X_P2_HDMI_DAC_FAST | |
433 | }, | |
d4906093 | 434 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
435 | }; |
436 | ||
437 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
044c7c41 ML |
438 | .dot = { .min = G4X_DOT_SINGLE_CHANNEL_LVDS_MIN, |
439 | .max = G4X_DOT_SINGLE_CHANNEL_LVDS_MAX }, | |
440 | .vco = { .min = G4X_VCO_MIN, | |
441 | .max = G4X_VCO_MAX }, | |
442 | .n = { .min = G4X_N_SINGLE_CHANNEL_LVDS_MIN, | |
443 | .max = G4X_N_SINGLE_CHANNEL_LVDS_MAX }, | |
444 | .m = { .min = G4X_M_SINGLE_CHANNEL_LVDS_MIN, | |
445 | .max = G4X_M_SINGLE_CHANNEL_LVDS_MAX }, | |
446 | .m1 = { .min = G4X_M1_SINGLE_CHANNEL_LVDS_MIN, | |
447 | .max = G4X_M1_SINGLE_CHANNEL_LVDS_MAX }, | |
448 | .m2 = { .min = G4X_M2_SINGLE_CHANNEL_LVDS_MIN, | |
449 | .max = G4X_M2_SINGLE_CHANNEL_LVDS_MAX }, | |
450 | .p = { .min = G4X_P_SINGLE_CHANNEL_LVDS_MIN, | |
451 | .max = G4X_P_SINGLE_CHANNEL_LVDS_MAX }, | |
452 | .p1 = { .min = G4X_P1_SINGLE_CHANNEL_LVDS_MIN, | |
453 | .max = G4X_P1_SINGLE_CHANNEL_LVDS_MAX }, | |
454 | .p2 = { .dot_limit = G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT, | |
455 | .p2_slow = G4X_P2_SINGLE_CHANNEL_LVDS_SLOW, | |
456 | .p2_fast = G4X_P2_SINGLE_CHANNEL_LVDS_FAST | |
457 | }, | |
d4906093 | 458 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
459 | }; |
460 | ||
461 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
044c7c41 ML |
462 | .dot = { .min = G4X_DOT_DUAL_CHANNEL_LVDS_MIN, |
463 | .max = G4X_DOT_DUAL_CHANNEL_LVDS_MAX }, | |
464 | .vco = { .min = G4X_VCO_MIN, | |
465 | .max = G4X_VCO_MAX }, | |
466 | .n = { .min = G4X_N_DUAL_CHANNEL_LVDS_MIN, | |
467 | .max = G4X_N_DUAL_CHANNEL_LVDS_MAX }, | |
468 | .m = { .min = G4X_M_DUAL_CHANNEL_LVDS_MIN, | |
469 | .max = G4X_M_DUAL_CHANNEL_LVDS_MAX }, | |
470 | .m1 = { .min = G4X_M1_DUAL_CHANNEL_LVDS_MIN, | |
471 | .max = G4X_M1_DUAL_CHANNEL_LVDS_MAX }, | |
472 | .m2 = { .min = G4X_M2_DUAL_CHANNEL_LVDS_MIN, | |
473 | .max = G4X_M2_DUAL_CHANNEL_LVDS_MAX }, | |
474 | .p = { .min = G4X_P_DUAL_CHANNEL_LVDS_MIN, | |
475 | .max = G4X_P_DUAL_CHANNEL_LVDS_MAX }, | |
476 | .p1 = { .min = G4X_P1_DUAL_CHANNEL_LVDS_MIN, | |
477 | .max = G4X_P1_DUAL_CHANNEL_LVDS_MAX }, | |
478 | .p2 = { .dot_limit = G4X_P2_DUAL_CHANNEL_LVDS_LIMIT, | |
479 | .p2_slow = G4X_P2_DUAL_CHANNEL_LVDS_SLOW, | |
480 | .p2_fast = G4X_P2_DUAL_CHANNEL_LVDS_FAST | |
481 | }, | |
d4906093 | 482 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
483 | }; |
484 | ||
485 | static const intel_limit_t intel_limits_g4x_display_port = { | |
a4fc5ed6 KP |
486 | .dot = { .min = G4X_DOT_DISPLAY_PORT_MIN, |
487 | .max = G4X_DOT_DISPLAY_PORT_MAX }, | |
488 | .vco = { .min = G4X_VCO_MIN, | |
489 | .max = G4X_VCO_MAX}, | |
490 | .n = { .min = G4X_N_DISPLAY_PORT_MIN, | |
491 | .max = G4X_N_DISPLAY_PORT_MAX }, | |
492 | .m = { .min = G4X_M_DISPLAY_PORT_MIN, | |
493 | .max = G4X_M_DISPLAY_PORT_MAX }, | |
494 | .m1 = { .min = G4X_M1_DISPLAY_PORT_MIN, | |
495 | .max = G4X_M1_DISPLAY_PORT_MAX }, | |
496 | .m2 = { .min = G4X_M2_DISPLAY_PORT_MIN, | |
497 | .max = G4X_M2_DISPLAY_PORT_MAX }, | |
498 | .p = { .min = G4X_P_DISPLAY_PORT_MIN, | |
499 | .max = G4X_P_DISPLAY_PORT_MAX }, | |
500 | .p1 = { .min = G4X_P1_DISPLAY_PORT_MIN, | |
501 | .max = G4X_P1_DISPLAY_PORT_MAX}, | |
502 | .p2 = { .dot_limit = G4X_P2_DISPLAY_PORT_LIMIT, | |
503 | .p2_slow = G4X_P2_DISPLAY_PORT_SLOW, | |
504 | .p2_fast = G4X_P2_DISPLAY_PORT_FAST }, | |
505 | .find_pll = intel_find_pll_g4x_dp, | |
e4b36699 KP |
506 | }; |
507 | ||
f2b115e6 | 508 | static const intel_limit_t intel_limits_pineview_sdvo = { |
2177832f | 509 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX}, |
f2b115e6 AJ |
510 | .vco = { .min = PINEVIEW_VCO_MIN, .max = PINEVIEW_VCO_MAX }, |
511 | .n = { .min = PINEVIEW_N_MIN, .max = PINEVIEW_N_MAX }, | |
512 | .m = { .min = PINEVIEW_M_MIN, .max = PINEVIEW_M_MAX }, | |
513 | .m1 = { .min = PINEVIEW_M1_MIN, .max = PINEVIEW_M1_MAX }, | |
514 | .m2 = { .min = PINEVIEW_M2_MIN, .max = PINEVIEW_M2_MAX }, | |
2177832f SL |
515 | .p = { .min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX }, |
516 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
517 | .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, | |
518 | .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, | |
6115707b | 519 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
520 | }; |
521 | ||
f2b115e6 | 522 | static const intel_limit_t intel_limits_pineview_lvds = { |
2177832f | 523 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
f2b115e6 AJ |
524 | .vco = { .min = PINEVIEW_VCO_MIN, .max = PINEVIEW_VCO_MAX }, |
525 | .n = { .min = PINEVIEW_N_MIN, .max = PINEVIEW_N_MAX }, | |
526 | .m = { .min = PINEVIEW_M_MIN, .max = PINEVIEW_M_MAX }, | |
527 | .m1 = { .min = PINEVIEW_M1_MIN, .max = PINEVIEW_M1_MAX }, | |
528 | .m2 = { .min = PINEVIEW_M2_MIN, .max = PINEVIEW_M2_MAX }, | |
529 | .p = { .min = PINEVIEW_P_LVDS_MIN, .max = PINEVIEW_P_LVDS_MAX }, | |
2177832f | 530 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, |
f2b115e6 | 531 | /* Pineview only supports single-channel mode. */ |
2177832f SL |
532 | .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, |
533 | .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_SLOW }, | |
6115707b | 534 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
535 | }; |
536 | ||
b91ad0ec | 537 | static const intel_limit_t intel_limits_ironlake_dac = { |
f2b115e6 AJ |
538 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, |
539 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
b91ad0ec ZW |
540 | .n = { .min = IRONLAKE_DAC_N_MIN, .max = IRONLAKE_DAC_N_MAX }, |
541 | .m = { .min = IRONLAKE_DAC_M_MIN, .max = IRONLAKE_DAC_M_MAX }, | |
f2b115e6 AJ |
542 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, |
543 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
b91ad0ec ZW |
544 | .p = { .min = IRONLAKE_DAC_P_MIN, .max = IRONLAKE_DAC_P_MAX }, |
545 | .p1 = { .min = IRONLAKE_DAC_P1_MIN, .max = IRONLAKE_DAC_P1_MAX }, | |
f2b115e6 | 546 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, |
b91ad0ec ZW |
547 | .p2_slow = IRONLAKE_DAC_P2_SLOW, |
548 | .p2_fast = IRONLAKE_DAC_P2_FAST }, | |
4547668a | 549 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
550 | }; |
551 | ||
b91ad0ec | 552 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
f2b115e6 AJ |
553 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, |
554 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
b91ad0ec ZW |
555 | .n = { .min = IRONLAKE_LVDS_S_N_MIN, .max = IRONLAKE_LVDS_S_N_MAX }, |
556 | .m = { .min = IRONLAKE_LVDS_S_M_MIN, .max = IRONLAKE_LVDS_S_M_MAX }, | |
f2b115e6 AJ |
557 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, |
558 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
b91ad0ec ZW |
559 | .p = { .min = IRONLAKE_LVDS_S_P_MIN, .max = IRONLAKE_LVDS_S_P_MAX }, |
560 | .p1 = { .min = IRONLAKE_LVDS_S_P1_MIN, .max = IRONLAKE_LVDS_S_P1_MAX }, | |
f2b115e6 | 561 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, |
b91ad0ec ZW |
562 | .p2_slow = IRONLAKE_LVDS_S_P2_SLOW, |
563 | .p2_fast = IRONLAKE_LVDS_S_P2_FAST }, | |
564 | .find_pll = intel_g4x_find_best_PLL, | |
565 | }; | |
566 | ||
567 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
568 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, | |
569 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
570 | .n = { .min = IRONLAKE_LVDS_D_N_MIN, .max = IRONLAKE_LVDS_D_N_MAX }, | |
571 | .m = { .min = IRONLAKE_LVDS_D_M_MIN, .max = IRONLAKE_LVDS_D_M_MAX }, | |
572 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, | |
573 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
574 | .p = { .min = IRONLAKE_LVDS_D_P_MIN, .max = IRONLAKE_LVDS_D_P_MAX }, | |
575 | .p1 = { .min = IRONLAKE_LVDS_D_P1_MIN, .max = IRONLAKE_LVDS_D_P1_MAX }, | |
576 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, | |
577 | .p2_slow = IRONLAKE_LVDS_D_P2_SLOW, | |
578 | .p2_fast = IRONLAKE_LVDS_D_P2_FAST }, | |
579 | .find_pll = intel_g4x_find_best_PLL, | |
580 | }; | |
581 | ||
582 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { | |
583 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, | |
584 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
585 | .n = { .min = IRONLAKE_LVDS_S_SSC_N_MIN, .max = IRONLAKE_LVDS_S_SSC_N_MAX }, | |
586 | .m = { .min = IRONLAKE_LVDS_S_SSC_M_MIN, .max = IRONLAKE_LVDS_S_SSC_M_MAX }, | |
587 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, | |
588 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
589 | .p = { .min = IRONLAKE_LVDS_S_SSC_P_MIN, .max = IRONLAKE_LVDS_S_SSC_P_MAX }, | |
590 | .p1 = { .min = IRONLAKE_LVDS_S_SSC_P1_MIN,.max = IRONLAKE_LVDS_S_SSC_P1_MAX }, | |
591 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, | |
592 | .p2_slow = IRONLAKE_LVDS_S_SSC_P2_SLOW, | |
593 | .p2_fast = IRONLAKE_LVDS_S_SSC_P2_FAST }, | |
594 | .find_pll = intel_g4x_find_best_PLL, | |
595 | }; | |
596 | ||
597 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
598 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, | |
599 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
600 | .n = { .min = IRONLAKE_LVDS_D_SSC_N_MIN, .max = IRONLAKE_LVDS_D_SSC_N_MAX }, | |
601 | .m = { .min = IRONLAKE_LVDS_D_SSC_M_MIN, .max = IRONLAKE_LVDS_D_SSC_M_MAX }, | |
602 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, | |
603 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
604 | .p = { .min = IRONLAKE_LVDS_D_SSC_P_MIN, .max = IRONLAKE_LVDS_D_SSC_P_MAX }, | |
605 | .p1 = { .min = IRONLAKE_LVDS_D_SSC_P1_MIN,.max = IRONLAKE_LVDS_D_SSC_P1_MAX }, | |
606 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, | |
607 | .p2_slow = IRONLAKE_LVDS_D_SSC_P2_SLOW, | |
608 | .p2_fast = IRONLAKE_LVDS_D_SSC_P2_FAST }, | |
4547668a ZY |
609 | .find_pll = intel_g4x_find_best_PLL, |
610 | }; | |
611 | ||
612 | static const intel_limit_t intel_limits_ironlake_display_port = { | |
613 | .dot = { .min = IRONLAKE_DOT_MIN, | |
614 | .max = IRONLAKE_DOT_MAX }, | |
615 | .vco = { .min = IRONLAKE_VCO_MIN, | |
616 | .max = IRONLAKE_VCO_MAX}, | |
b91ad0ec ZW |
617 | .n = { .min = IRONLAKE_DP_N_MIN, |
618 | .max = IRONLAKE_DP_N_MAX }, | |
619 | .m = { .min = IRONLAKE_DP_M_MIN, | |
620 | .max = IRONLAKE_DP_M_MAX }, | |
4547668a ZY |
621 | .m1 = { .min = IRONLAKE_M1_MIN, |
622 | .max = IRONLAKE_M1_MAX }, | |
623 | .m2 = { .min = IRONLAKE_M2_MIN, | |
624 | .max = IRONLAKE_M2_MAX }, | |
b91ad0ec ZW |
625 | .p = { .min = IRONLAKE_DP_P_MIN, |
626 | .max = IRONLAKE_DP_P_MAX }, | |
627 | .p1 = { .min = IRONLAKE_DP_P1_MIN, | |
628 | .max = IRONLAKE_DP_P1_MAX}, | |
629 | .p2 = { .dot_limit = IRONLAKE_DP_P2_LIMIT, | |
630 | .p2_slow = IRONLAKE_DP_P2_SLOW, | |
631 | .p2_fast = IRONLAKE_DP_P2_FAST }, | |
4547668a | 632 | .find_pll = intel_find_pll_ironlake_dp, |
79e53945 JB |
633 | }; |
634 | ||
f2b115e6 | 635 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc) |
2c07245f | 636 | { |
b91ad0ec ZW |
637 | struct drm_device *dev = crtc->dev; |
638 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2c07245f | 639 | const intel_limit_t *limit; |
b91ad0ec ZW |
640 | int refclk = 120; |
641 | ||
642 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
643 | if (dev_priv->lvds_use_ssc && dev_priv->lvds_ssc_freq == 100) | |
644 | refclk = 100; | |
645 | ||
646 | if ((I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == | |
647 | LVDS_CLKB_POWER_UP) { | |
648 | /* LVDS dual channel */ | |
649 | if (refclk == 100) | |
650 | limit = &intel_limits_ironlake_dual_lvds_100m; | |
651 | else | |
652 | limit = &intel_limits_ironlake_dual_lvds; | |
653 | } else { | |
654 | if (refclk == 100) | |
655 | limit = &intel_limits_ironlake_single_lvds_100m; | |
656 | else | |
657 | limit = &intel_limits_ironlake_single_lvds; | |
658 | } | |
659 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || | |
4547668a ZY |
660 | HAS_eDP) |
661 | limit = &intel_limits_ironlake_display_port; | |
2c07245f | 662 | else |
b91ad0ec | 663 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
664 | |
665 | return limit; | |
666 | } | |
667 | ||
044c7c41 ML |
668 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
669 | { | |
670 | struct drm_device *dev = crtc->dev; | |
671 | struct drm_i915_private *dev_priv = dev->dev_private; | |
672 | const intel_limit_t *limit; | |
673 | ||
674 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
675 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
676 | LVDS_CLKB_POWER_UP) | |
677 | /* LVDS with dual channel */ | |
e4b36699 | 678 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 ML |
679 | else |
680 | /* LVDS with dual channel */ | |
e4b36699 | 681 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
682 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
683 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 684 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 685 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 686 | limit = &intel_limits_g4x_sdvo; |
a4fc5ed6 | 687 | } else if (intel_pipe_has_type (crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
e4b36699 | 688 | limit = &intel_limits_g4x_display_port; |
044c7c41 | 689 | } else /* The option is for other outputs */ |
e4b36699 | 690 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
691 | |
692 | return limit; | |
693 | } | |
694 | ||
79e53945 JB |
695 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc) |
696 | { | |
697 | struct drm_device *dev = crtc->dev; | |
698 | const intel_limit_t *limit; | |
699 | ||
bad720ff | 700 | if (HAS_PCH_SPLIT(dev)) |
f2b115e6 | 701 | limit = intel_ironlake_limit(crtc); |
2c07245f | 702 | else if (IS_G4X(dev)) { |
044c7c41 | 703 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 704 | } else if (IS_I9XX(dev) && !IS_PINEVIEW(dev)) { |
79e53945 | 705 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
e4b36699 | 706 | limit = &intel_limits_i9xx_lvds; |
79e53945 | 707 | else |
e4b36699 | 708 | limit = &intel_limits_i9xx_sdvo; |
f2b115e6 | 709 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 710 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 711 | limit = &intel_limits_pineview_lvds; |
2177832f | 712 | else |
f2b115e6 | 713 | limit = &intel_limits_pineview_sdvo; |
79e53945 JB |
714 | } else { |
715 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 716 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 717 | else |
e4b36699 | 718 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
719 | } |
720 | return limit; | |
721 | } | |
722 | ||
f2b115e6 AJ |
723 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
724 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 725 | { |
2177832f SL |
726 | clock->m = clock->m2 + 2; |
727 | clock->p = clock->p1 * clock->p2; | |
728 | clock->vco = refclk * clock->m / clock->n; | |
729 | clock->dot = clock->vco / clock->p; | |
730 | } | |
731 | ||
732 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) | |
733 | { | |
f2b115e6 AJ |
734 | if (IS_PINEVIEW(dev)) { |
735 | pineview_clock(refclk, clock); | |
2177832f SL |
736 | return; |
737 | } | |
79e53945 JB |
738 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
739 | clock->p = clock->p1 * clock->p2; | |
740 | clock->vco = refclk * clock->m / (clock->n + 2); | |
741 | clock->dot = clock->vco / clock->p; | |
742 | } | |
743 | ||
79e53945 JB |
744 | /** |
745 | * Returns whether any output on the specified pipe is of the specified type | |
746 | */ | |
747 | bool intel_pipe_has_type (struct drm_crtc *crtc, int type) | |
748 | { | |
749 | struct drm_device *dev = crtc->dev; | |
750 | struct drm_mode_config *mode_config = &dev->mode_config; | |
c5e4df33 | 751 | struct drm_encoder *l_entry; |
79e53945 | 752 | |
c5e4df33 ZW |
753 | list_for_each_entry(l_entry, &mode_config->encoder_list, head) { |
754 | if (l_entry && l_entry->crtc == crtc) { | |
755 | struct intel_encoder *intel_encoder = enc_to_intel_encoder(l_entry); | |
21d40d37 | 756 | if (intel_encoder->type == type) |
79e53945 JB |
757 | return true; |
758 | } | |
759 | } | |
760 | return false; | |
761 | } | |
762 | ||
7c04d1d9 | 763 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
764 | /** |
765 | * Returns whether the given set of divisors are valid for a given refclk with | |
766 | * the given connectors. | |
767 | */ | |
768 | ||
769 | static bool intel_PLL_is_valid(struct drm_crtc *crtc, intel_clock_t *clock) | |
770 | { | |
771 | const intel_limit_t *limit = intel_limit (crtc); | |
2177832f | 772 | struct drm_device *dev = crtc->dev; |
79e53945 JB |
773 | |
774 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) | |
775 | INTELPllInvalid ("p1 out of range\n"); | |
776 | if (clock->p < limit->p.min || limit->p.max < clock->p) | |
777 | INTELPllInvalid ("p out of range\n"); | |
778 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) | |
779 | INTELPllInvalid ("m2 out of range\n"); | |
780 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) | |
781 | INTELPllInvalid ("m1 out of range\n"); | |
f2b115e6 | 782 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
79e53945 JB |
783 | INTELPllInvalid ("m1 <= m2\n"); |
784 | if (clock->m < limit->m.min || limit->m.max < clock->m) | |
785 | INTELPllInvalid ("m out of range\n"); | |
786 | if (clock->n < limit->n.min || limit->n.max < clock->n) | |
787 | INTELPllInvalid ("n out of range\n"); | |
788 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) | |
789 | INTELPllInvalid ("vco out of range\n"); | |
790 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, | |
791 | * connector, etc., rather than just a single range. | |
792 | */ | |
793 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
794 | INTELPllInvalid ("dot out of range\n"); | |
795 | ||
796 | return true; | |
797 | } | |
798 | ||
d4906093 ML |
799 | static bool |
800 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
801 | int target, int refclk, intel_clock_t *best_clock) | |
802 | ||
79e53945 JB |
803 | { |
804 | struct drm_device *dev = crtc->dev; | |
805 | struct drm_i915_private *dev_priv = dev->dev_private; | |
806 | intel_clock_t clock; | |
79e53945 JB |
807 | int err = target; |
808 | ||
bc5e5718 | 809 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
832cc28d | 810 | (I915_READ(LVDS)) != 0) { |
79e53945 JB |
811 | /* |
812 | * For LVDS, if the panel is on, just rely on its current | |
813 | * settings for dual-channel. We haven't figured out how to | |
814 | * reliably set up different single/dual channel state, if we | |
815 | * even can. | |
816 | */ | |
817 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
818 | LVDS_CLKB_POWER_UP) | |
819 | clock.p2 = limit->p2.p2_fast; | |
820 | else | |
821 | clock.p2 = limit->p2.p2_slow; | |
822 | } else { | |
823 | if (target < limit->p2.dot_limit) | |
824 | clock.p2 = limit->p2.p2_slow; | |
825 | else | |
826 | clock.p2 = limit->p2.p2_fast; | |
827 | } | |
828 | ||
829 | memset (best_clock, 0, sizeof (*best_clock)); | |
830 | ||
42158660 ZY |
831 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
832 | clock.m1++) { | |
833 | for (clock.m2 = limit->m2.min; | |
834 | clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
835 | /* m1 is always 0 in Pineview */ |
836 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
42158660 ZY |
837 | break; |
838 | for (clock.n = limit->n.min; | |
839 | clock.n <= limit->n.max; clock.n++) { | |
840 | for (clock.p1 = limit->p1.min; | |
841 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
842 | int this_err; |
843 | ||
2177832f | 844 | intel_clock(dev, refclk, &clock); |
79e53945 JB |
845 | |
846 | if (!intel_PLL_is_valid(crtc, &clock)) | |
847 | continue; | |
848 | ||
849 | this_err = abs(clock.dot - target); | |
850 | if (this_err < err) { | |
851 | *best_clock = clock; | |
852 | err = this_err; | |
853 | } | |
854 | } | |
855 | } | |
856 | } | |
857 | } | |
858 | ||
859 | return (err != target); | |
860 | } | |
861 | ||
d4906093 ML |
862 | static bool |
863 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
864 | int target, int refclk, intel_clock_t *best_clock) | |
865 | { | |
866 | struct drm_device *dev = crtc->dev; | |
867 | struct drm_i915_private *dev_priv = dev->dev_private; | |
868 | intel_clock_t clock; | |
869 | int max_n; | |
870 | bool found; | |
6ba770dc AJ |
871 | /* approximately equals target * 0.00585 */ |
872 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
873 | found = false; |
874 | ||
875 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4547668a ZY |
876 | int lvds_reg; |
877 | ||
c619eed4 | 878 | if (HAS_PCH_SPLIT(dev)) |
4547668a ZY |
879 | lvds_reg = PCH_LVDS; |
880 | else | |
881 | lvds_reg = LVDS; | |
882 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == | |
d4906093 ML |
883 | LVDS_CLKB_POWER_UP) |
884 | clock.p2 = limit->p2.p2_fast; | |
885 | else | |
886 | clock.p2 = limit->p2.p2_slow; | |
887 | } else { | |
888 | if (target < limit->p2.dot_limit) | |
889 | clock.p2 = limit->p2.p2_slow; | |
890 | else | |
891 | clock.p2 = limit->p2.p2_fast; | |
892 | } | |
893 | ||
894 | memset(best_clock, 0, sizeof(*best_clock)); | |
895 | max_n = limit->n.max; | |
f77f13e2 | 896 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 897 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 898 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
899 | for (clock.m1 = limit->m1.max; |
900 | clock.m1 >= limit->m1.min; clock.m1--) { | |
901 | for (clock.m2 = limit->m2.max; | |
902 | clock.m2 >= limit->m2.min; clock.m2--) { | |
903 | for (clock.p1 = limit->p1.max; | |
904 | clock.p1 >= limit->p1.min; clock.p1--) { | |
905 | int this_err; | |
906 | ||
2177832f | 907 | intel_clock(dev, refclk, &clock); |
d4906093 ML |
908 | if (!intel_PLL_is_valid(crtc, &clock)) |
909 | continue; | |
910 | this_err = abs(clock.dot - target) ; | |
911 | if (this_err < err_most) { | |
912 | *best_clock = clock; | |
913 | err_most = this_err; | |
914 | max_n = clock.n; | |
915 | found = true; | |
916 | } | |
917 | } | |
918 | } | |
919 | } | |
920 | } | |
2c07245f ZW |
921 | return found; |
922 | } | |
923 | ||
5eb08b69 | 924 | static bool |
f2b115e6 AJ |
925 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
926 | int target, int refclk, intel_clock_t *best_clock) | |
5eb08b69 ZW |
927 | { |
928 | struct drm_device *dev = crtc->dev; | |
929 | intel_clock_t clock; | |
4547668a ZY |
930 | |
931 | /* return directly when it is eDP */ | |
932 | if (HAS_eDP) | |
933 | return true; | |
934 | ||
5eb08b69 ZW |
935 | if (target < 200000) { |
936 | clock.n = 1; | |
937 | clock.p1 = 2; | |
938 | clock.p2 = 10; | |
939 | clock.m1 = 12; | |
940 | clock.m2 = 9; | |
941 | } else { | |
942 | clock.n = 2; | |
943 | clock.p1 = 1; | |
944 | clock.p2 = 10; | |
945 | clock.m1 = 14; | |
946 | clock.m2 = 8; | |
947 | } | |
948 | intel_clock(dev, refclk, &clock); | |
949 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
950 | return true; | |
951 | } | |
952 | ||
a4fc5ed6 KP |
953 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
954 | static bool | |
955 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, | |
956 | int target, int refclk, intel_clock_t *best_clock) | |
957 | { | |
958 | intel_clock_t clock; | |
959 | if (target < 200000) { | |
a4fc5ed6 KP |
960 | clock.p1 = 2; |
961 | clock.p2 = 10; | |
b3d25495 KP |
962 | clock.n = 2; |
963 | clock.m1 = 23; | |
964 | clock.m2 = 8; | |
a4fc5ed6 | 965 | } else { |
a4fc5ed6 KP |
966 | clock.p1 = 1; |
967 | clock.p2 = 10; | |
b3d25495 KP |
968 | clock.n = 1; |
969 | clock.m1 = 14; | |
970 | clock.m2 = 2; | |
a4fc5ed6 | 971 | } |
b3d25495 KP |
972 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); |
973 | clock.p = (clock.p1 * clock.p2); | |
974 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; | |
fe798b97 | 975 | clock.vco = 0; |
a4fc5ed6 KP |
976 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); |
977 | return true; | |
978 | } | |
979 | ||
9d0498a2 JB |
980 | /** |
981 | * intel_wait_for_vblank - wait for vblank on a given pipe | |
982 | * @dev: drm device | |
983 | * @pipe: pipe to wait for | |
984 | * | |
985 | * Wait for vblank to occur on a given pipe. Needed for various bits of | |
986 | * mode setting code. | |
987 | */ | |
988 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) | |
79e53945 | 989 | { |
9d0498a2 JB |
990 | struct drm_i915_private *dev_priv = dev->dev_private; |
991 | int pipestat_reg = (pipe == 0 ? PIPEASTAT : PIPEBSTAT); | |
992 | ||
993 | /* Wait for vblank interrupt bit to set */ | |
994 | if (wait_for((I915_READ(pipestat_reg) & | |
995 | PIPE_VBLANK_INTERRUPT_STATUS) == 0, | |
996 | 50, 0)) | |
997 | DRM_DEBUG_KMS("vblank wait timed out\n"); | |
998 | } | |
999 | ||
1000 | /** | |
1001 | * intel_wait_for_vblank_off - wait for vblank after disabling a pipe | |
1002 | * @dev: drm device | |
1003 | * @pipe: pipe to wait for | |
1004 | * | |
1005 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
1006 | * spinning on the vblank interrupt status bit, since we won't actually | |
1007 | * see an interrupt when the pipe is disabled. | |
1008 | * | |
1009 | * So this function waits for the display line value to settle (it | |
1010 | * usually ends up stopping at the start of the next frame). | |
1011 | */ | |
1012 | void intel_wait_for_vblank_off(struct drm_device *dev, int pipe) | |
1013 | { | |
1014 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1015 | int pipedsl_reg = (pipe == 0 ? PIPEADSL : PIPEBDSL); | |
1016 | unsigned long timeout = jiffies + msecs_to_jiffies(100); | |
1017 | u32 last_line; | |
1018 | ||
1019 | /* Wait for the display line to settle */ | |
1020 | do { | |
1021 | last_line = I915_READ(pipedsl_reg) & DSL_LINEMASK; | |
1022 | mdelay(5); | |
1023 | } while (((I915_READ(pipedsl_reg) & DSL_LINEMASK) != last_line) && | |
1024 | time_after(timeout, jiffies)); | |
1025 | ||
1026 | if (time_after(jiffies, timeout)) | |
1027 | DRM_DEBUG_KMS("vblank wait timed out\n"); | |
79e53945 JB |
1028 | } |
1029 | ||
80824003 JB |
1030 | /* Parameters have changed, update FBC info */ |
1031 | static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval) | |
1032 | { | |
1033 | struct drm_device *dev = crtc->dev; | |
1034 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1035 | struct drm_framebuffer *fb = crtc->fb; | |
1036 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
23010e43 | 1037 | struct drm_i915_gem_object *obj_priv = to_intel_bo(intel_fb->obj); |
80824003 JB |
1038 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
1039 | int plane, i; | |
1040 | u32 fbc_ctl, fbc_ctl2; | |
1041 | ||
1042 | dev_priv->cfb_pitch = dev_priv->cfb_size / FBC_LL_SIZE; | |
1043 | ||
1044 | if (fb->pitch < dev_priv->cfb_pitch) | |
1045 | dev_priv->cfb_pitch = fb->pitch; | |
1046 | ||
1047 | /* FBC_CTL wants 64B units */ | |
1048 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; | |
1049 | dev_priv->cfb_fence = obj_priv->fence_reg; | |
1050 | dev_priv->cfb_plane = intel_crtc->plane; | |
1051 | plane = dev_priv->cfb_plane == 0 ? FBC_CTL_PLANEA : FBC_CTL_PLANEB; | |
1052 | ||
1053 | /* Clear old tags */ | |
1054 | for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++) | |
1055 | I915_WRITE(FBC_TAG + (i * 4), 0); | |
1056 | ||
1057 | /* Set it up... */ | |
1058 | fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | plane; | |
1059 | if (obj_priv->tiling_mode != I915_TILING_NONE) | |
1060 | fbc_ctl2 |= FBC_CTL_CPU_FENCE; | |
1061 | I915_WRITE(FBC_CONTROL2, fbc_ctl2); | |
1062 | I915_WRITE(FBC_FENCE_OFF, crtc->y); | |
1063 | ||
1064 | /* enable it... */ | |
1065 | fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC; | |
ee25df2b | 1066 | if (IS_I945GM(dev)) |
49677901 | 1067 | fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */ |
80824003 JB |
1068 | fbc_ctl |= (dev_priv->cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT; |
1069 | fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT; | |
1070 | if (obj_priv->tiling_mode != I915_TILING_NONE) | |
1071 | fbc_ctl |= dev_priv->cfb_fence; | |
1072 | I915_WRITE(FBC_CONTROL, fbc_ctl); | |
1073 | ||
28c97730 | 1074 | DRM_DEBUG_KMS("enabled FBC, pitch %ld, yoff %d, plane %d, ", |
80824003 JB |
1075 | dev_priv->cfb_pitch, crtc->y, dev_priv->cfb_plane); |
1076 | } | |
1077 | ||
1078 | void i8xx_disable_fbc(struct drm_device *dev) | |
1079 | { | |
1080 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1081 | u32 fbc_ctl; | |
1082 | ||
c1a1cdc1 JB |
1083 | if (!I915_HAS_FBC(dev)) |
1084 | return; | |
1085 | ||
9517a92f JB |
1086 | if (!(I915_READ(FBC_CONTROL) & FBC_CTL_EN)) |
1087 | return; /* Already off, just return */ | |
1088 | ||
80824003 JB |
1089 | /* Disable compression */ |
1090 | fbc_ctl = I915_READ(FBC_CONTROL); | |
1091 | fbc_ctl &= ~FBC_CTL_EN; | |
1092 | I915_WRITE(FBC_CONTROL, fbc_ctl); | |
1093 | ||
1094 | /* Wait for compressing bit to clear */ | |
913d8d11 CW |
1095 | if (wait_for((I915_READ(FBC_STATUS) & FBC_STAT_COMPRESSING) == 0, 10, 0)) { |
1096 | DRM_DEBUG_KMS("FBC idle timed out\n"); | |
1097 | return; | |
9517a92f | 1098 | } |
80824003 | 1099 | |
28c97730 | 1100 | DRM_DEBUG_KMS("disabled FBC\n"); |
80824003 JB |
1101 | } |
1102 | ||
ee5382ae | 1103 | static bool i8xx_fbc_enabled(struct drm_device *dev) |
80824003 | 1104 | { |
80824003 JB |
1105 | struct drm_i915_private *dev_priv = dev->dev_private; |
1106 | ||
1107 | return I915_READ(FBC_CONTROL) & FBC_CTL_EN; | |
1108 | } | |
1109 | ||
74dff282 JB |
1110 | static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
1111 | { | |
1112 | struct drm_device *dev = crtc->dev; | |
1113 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1114 | struct drm_framebuffer *fb = crtc->fb; | |
1115 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
23010e43 | 1116 | struct drm_i915_gem_object *obj_priv = to_intel_bo(intel_fb->obj); |
74dff282 JB |
1117 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
1118 | int plane = (intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : | |
1119 | DPFC_CTL_PLANEB); | |
1120 | unsigned long stall_watermark = 200; | |
1121 | u32 dpfc_ctl; | |
1122 | ||
1123 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; | |
1124 | dev_priv->cfb_fence = obj_priv->fence_reg; | |
1125 | dev_priv->cfb_plane = intel_crtc->plane; | |
1126 | ||
1127 | dpfc_ctl = plane | DPFC_SR_EN | DPFC_CTL_LIMIT_1X; | |
1128 | if (obj_priv->tiling_mode != I915_TILING_NONE) { | |
1129 | dpfc_ctl |= DPFC_CTL_FENCE_EN | dev_priv->cfb_fence; | |
1130 | I915_WRITE(DPFC_CHICKEN, DPFC_HT_MODIFY); | |
1131 | } else { | |
1132 | I915_WRITE(DPFC_CHICKEN, ~DPFC_HT_MODIFY); | |
1133 | } | |
1134 | ||
1135 | I915_WRITE(DPFC_CONTROL, dpfc_ctl); | |
1136 | I915_WRITE(DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN | | |
1137 | (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) | | |
1138 | (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT)); | |
1139 | I915_WRITE(DPFC_FENCE_YOFF, crtc->y); | |
1140 | ||
1141 | /* enable it... */ | |
1142 | I915_WRITE(DPFC_CONTROL, I915_READ(DPFC_CONTROL) | DPFC_CTL_EN); | |
1143 | ||
28c97730 | 1144 | DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane); |
74dff282 JB |
1145 | } |
1146 | ||
1147 | void g4x_disable_fbc(struct drm_device *dev) | |
1148 | { | |
1149 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1150 | u32 dpfc_ctl; | |
1151 | ||
1152 | /* Disable compression */ | |
1153 | dpfc_ctl = I915_READ(DPFC_CONTROL); | |
1154 | dpfc_ctl &= ~DPFC_CTL_EN; | |
1155 | I915_WRITE(DPFC_CONTROL, dpfc_ctl); | |
74dff282 | 1156 | |
28c97730 | 1157 | DRM_DEBUG_KMS("disabled FBC\n"); |
74dff282 JB |
1158 | } |
1159 | ||
ee5382ae | 1160 | static bool g4x_fbc_enabled(struct drm_device *dev) |
74dff282 | 1161 | { |
74dff282 JB |
1162 | struct drm_i915_private *dev_priv = dev->dev_private; |
1163 | ||
1164 | return I915_READ(DPFC_CONTROL) & DPFC_CTL_EN; | |
1165 | } | |
1166 | ||
b52eb4dc ZY |
1167 | static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
1168 | { | |
1169 | struct drm_device *dev = crtc->dev; | |
1170 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1171 | struct drm_framebuffer *fb = crtc->fb; | |
1172 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
1173 | struct drm_i915_gem_object *obj_priv = to_intel_bo(intel_fb->obj); | |
1174 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1175 | int plane = (intel_crtc->plane == 0) ? DPFC_CTL_PLANEA : | |
1176 | DPFC_CTL_PLANEB; | |
1177 | unsigned long stall_watermark = 200; | |
1178 | u32 dpfc_ctl; | |
1179 | ||
1180 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; | |
1181 | dev_priv->cfb_fence = obj_priv->fence_reg; | |
1182 | dev_priv->cfb_plane = intel_crtc->plane; | |
1183 | ||
1184 | dpfc_ctl = I915_READ(ILK_DPFC_CONTROL); | |
1185 | dpfc_ctl &= DPFC_RESERVED; | |
1186 | dpfc_ctl |= (plane | DPFC_CTL_LIMIT_1X); | |
1187 | if (obj_priv->tiling_mode != I915_TILING_NONE) { | |
1188 | dpfc_ctl |= (DPFC_CTL_FENCE_EN | dev_priv->cfb_fence); | |
1189 | I915_WRITE(ILK_DPFC_CHICKEN, DPFC_HT_MODIFY); | |
1190 | } else { | |
1191 | I915_WRITE(ILK_DPFC_CHICKEN, ~DPFC_HT_MODIFY); | |
1192 | } | |
1193 | ||
1194 | I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl); | |
1195 | I915_WRITE(ILK_DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN | | |
1196 | (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) | | |
1197 | (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT)); | |
1198 | I915_WRITE(ILK_DPFC_FENCE_YOFF, crtc->y); | |
1199 | I915_WRITE(ILK_FBC_RT_BASE, obj_priv->gtt_offset | ILK_FBC_RT_VALID); | |
1200 | /* enable it... */ | |
1201 | I915_WRITE(ILK_DPFC_CONTROL, I915_READ(ILK_DPFC_CONTROL) | | |
1202 | DPFC_CTL_EN); | |
1203 | ||
1204 | DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane); | |
1205 | } | |
1206 | ||
1207 | void ironlake_disable_fbc(struct drm_device *dev) | |
1208 | { | |
1209 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1210 | u32 dpfc_ctl; | |
1211 | ||
1212 | /* Disable compression */ | |
1213 | dpfc_ctl = I915_READ(ILK_DPFC_CONTROL); | |
1214 | dpfc_ctl &= ~DPFC_CTL_EN; | |
1215 | I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl); | |
b52eb4dc ZY |
1216 | |
1217 | DRM_DEBUG_KMS("disabled FBC\n"); | |
1218 | } | |
1219 | ||
1220 | static bool ironlake_fbc_enabled(struct drm_device *dev) | |
1221 | { | |
1222 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1223 | ||
1224 | return I915_READ(ILK_DPFC_CONTROL) & DPFC_CTL_EN; | |
1225 | } | |
1226 | ||
ee5382ae AJ |
1227 | bool intel_fbc_enabled(struct drm_device *dev) |
1228 | { | |
1229 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1230 | ||
1231 | if (!dev_priv->display.fbc_enabled) | |
1232 | return false; | |
1233 | ||
1234 | return dev_priv->display.fbc_enabled(dev); | |
1235 | } | |
1236 | ||
1237 | void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval) | |
1238 | { | |
1239 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
1240 | ||
1241 | if (!dev_priv->display.enable_fbc) | |
1242 | return; | |
1243 | ||
1244 | dev_priv->display.enable_fbc(crtc, interval); | |
1245 | } | |
1246 | ||
1247 | void intel_disable_fbc(struct drm_device *dev) | |
1248 | { | |
1249 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1250 | ||
1251 | if (!dev_priv->display.disable_fbc) | |
1252 | return; | |
1253 | ||
1254 | dev_priv->display.disable_fbc(dev); | |
1255 | } | |
1256 | ||
80824003 JB |
1257 | /** |
1258 | * intel_update_fbc - enable/disable FBC as needed | |
1259 | * @crtc: CRTC to point the compressor at | |
1260 | * @mode: mode in use | |
1261 | * | |
1262 | * Set up the framebuffer compression hardware at mode set time. We | |
1263 | * enable it if possible: | |
1264 | * - plane A only (on pre-965) | |
1265 | * - no pixel mulitply/line duplication | |
1266 | * - no alpha buffer discard | |
1267 | * - no dual wide | |
1268 | * - framebuffer <= 2048 in width, 1536 in height | |
1269 | * | |
1270 | * We can't assume that any compression will take place (worst case), | |
1271 | * so the compressed buffer has to be the same size as the uncompressed | |
1272 | * one. It also must reside (along with the line length buffer) in | |
1273 | * stolen memory. | |
1274 | * | |
1275 | * We need to enable/disable FBC on a global basis. | |
1276 | */ | |
1277 | static void intel_update_fbc(struct drm_crtc *crtc, | |
1278 | struct drm_display_mode *mode) | |
1279 | { | |
1280 | struct drm_device *dev = crtc->dev; | |
1281 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1282 | struct drm_framebuffer *fb = crtc->fb; | |
1283 | struct intel_framebuffer *intel_fb; | |
1284 | struct drm_i915_gem_object *obj_priv; | |
9c928d16 | 1285 | struct drm_crtc *tmp_crtc; |
80824003 JB |
1286 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
1287 | int plane = intel_crtc->plane; | |
9c928d16 JB |
1288 | int crtcs_enabled = 0; |
1289 | ||
1290 | DRM_DEBUG_KMS("\n"); | |
80824003 JB |
1291 | |
1292 | if (!i915_powersave) | |
1293 | return; | |
1294 | ||
ee5382ae | 1295 | if (!I915_HAS_FBC(dev)) |
e70236a8 JB |
1296 | return; |
1297 | ||
80824003 JB |
1298 | if (!crtc->fb) |
1299 | return; | |
1300 | ||
1301 | intel_fb = to_intel_framebuffer(fb); | |
23010e43 | 1302 | obj_priv = to_intel_bo(intel_fb->obj); |
80824003 JB |
1303 | |
1304 | /* | |
1305 | * If FBC is already on, we just have to verify that we can | |
1306 | * keep it that way... | |
1307 | * Need to disable if: | |
9c928d16 | 1308 | * - more than one pipe is active |
80824003 JB |
1309 | * - changing FBC params (stride, fence, mode) |
1310 | * - new fb is too large to fit in compressed buffer | |
1311 | * - going to an unsupported config (interlace, pixel multiply, etc.) | |
1312 | */ | |
9c928d16 JB |
1313 | list_for_each_entry(tmp_crtc, &dev->mode_config.crtc_list, head) { |
1314 | if (tmp_crtc->enabled) | |
1315 | crtcs_enabled++; | |
1316 | } | |
1317 | DRM_DEBUG_KMS("%d pipes active\n", crtcs_enabled); | |
1318 | if (crtcs_enabled > 1) { | |
1319 | DRM_DEBUG_KMS("more than one pipe active, disabling compression\n"); | |
1320 | dev_priv->no_fbc_reason = FBC_MULTIPLE_PIPES; | |
1321 | goto out_disable; | |
1322 | } | |
80824003 | 1323 | if (intel_fb->obj->size > dev_priv->cfb_size) { |
28c97730 ZY |
1324 | DRM_DEBUG_KMS("framebuffer too large, disabling " |
1325 | "compression\n"); | |
b5e50c3f | 1326 | dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL; |
80824003 JB |
1327 | goto out_disable; |
1328 | } | |
1329 | if ((mode->flags & DRM_MODE_FLAG_INTERLACE) || | |
1330 | (mode->flags & DRM_MODE_FLAG_DBLSCAN)) { | |
28c97730 ZY |
1331 | DRM_DEBUG_KMS("mode incompatible with compression, " |
1332 | "disabling\n"); | |
b5e50c3f | 1333 | dev_priv->no_fbc_reason = FBC_UNSUPPORTED_MODE; |
80824003 JB |
1334 | goto out_disable; |
1335 | } | |
1336 | if ((mode->hdisplay > 2048) || | |
1337 | (mode->vdisplay > 1536)) { | |
28c97730 | 1338 | DRM_DEBUG_KMS("mode too large for compression, disabling\n"); |
b5e50c3f | 1339 | dev_priv->no_fbc_reason = FBC_MODE_TOO_LARGE; |
80824003 JB |
1340 | goto out_disable; |
1341 | } | |
74dff282 | 1342 | if ((IS_I915GM(dev) || IS_I945GM(dev)) && plane != 0) { |
28c97730 | 1343 | DRM_DEBUG_KMS("plane not 0, disabling compression\n"); |
b5e50c3f | 1344 | dev_priv->no_fbc_reason = FBC_BAD_PLANE; |
80824003 JB |
1345 | goto out_disable; |
1346 | } | |
1347 | if (obj_priv->tiling_mode != I915_TILING_X) { | |
28c97730 | 1348 | DRM_DEBUG_KMS("framebuffer not tiled, disabling compression\n"); |
b5e50c3f | 1349 | dev_priv->no_fbc_reason = FBC_NOT_TILED; |
80824003 JB |
1350 | goto out_disable; |
1351 | } | |
1352 | ||
c924b934 JW |
1353 | /* If the kernel debugger is active, always disable compression */ |
1354 | if (in_dbg_master()) | |
1355 | goto out_disable; | |
1356 | ||
ee5382ae | 1357 | if (intel_fbc_enabled(dev)) { |
80824003 | 1358 | /* We can re-enable it in this case, but need to update pitch */ |
ee5382ae AJ |
1359 | if ((fb->pitch > dev_priv->cfb_pitch) || |
1360 | (obj_priv->fence_reg != dev_priv->cfb_fence) || | |
1361 | (plane != dev_priv->cfb_plane)) | |
1362 | intel_disable_fbc(dev); | |
80824003 JB |
1363 | } |
1364 | ||
ee5382ae AJ |
1365 | /* Now try to turn it back on if possible */ |
1366 | if (!intel_fbc_enabled(dev)) | |
1367 | intel_enable_fbc(crtc, 500); | |
80824003 JB |
1368 | |
1369 | return; | |
1370 | ||
1371 | out_disable: | |
80824003 | 1372 | /* Multiple disables should be harmless */ |
a939406f CW |
1373 | if (intel_fbc_enabled(dev)) { |
1374 | DRM_DEBUG_KMS("unsupported config, disabling FBC\n"); | |
ee5382ae | 1375 | intel_disable_fbc(dev); |
a939406f | 1376 | } |
80824003 JB |
1377 | } |
1378 | ||
127bd2ac | 1379 | int |
6b95a207 KH |
1380 | intel_pin_and_fence_fb_obj(struct drm_device *dev, struct drm_gem_object *obj) |
1381 | { | |
23010e43 | 1382 | struct drm_i915_gem_object *obj_priv = to_intel_bo(obj); |
6b95a207 KH |
1383 | u32 alignment; |
1384 | int ret; | |
1385 | ||
1386 | switch (obj_priv->tiling_mode) { | |
1387 | case I915_TILING_NONE: | |
534843da CW |
1388 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
1389 | alignment = 128 * 1024; | |
1390 | else if (IS_I965G(dev)) | |
1391 | alignment = 4 * 1024; | |
1392 | else | |
1393 | alignment = 64 * 1024; | |
6b95a207 KH |
1394 | break; |
1395 | case I915_TILING_X: | |
1396 | /* pin() will align the object as required by fence */ | |
1397 | alignment = 0; | |
1398 | break; | |
1399 | case I915_TILING_Y: | |
1400 | /* FIXME: Is this true? */ | |
1401 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); | |
1402 | return -EINVAL; | |
1403 | default: | |
1404 | BUG(); | |
1405 | } | |
1406 | ||
6b95a207 KH |
1407 | ret = i915_gem_object_pin(obj, alignment); |
1408 | if (ret != 0) | |
1409 | return ret; | |
1410 | ||
1411 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
1412 | * fence, whereas 965+ only requires a fence if using | |
1413 | * framebuffer compression. For simplicity, we always install | |
1414 | * a fence as the cost is not that onerous. | |
1415 | */ | |
1416 | if (obj_priv->fence_reg == I915_FENCE_REG_NONE && | |
1417 | obj_priv->tiling_mode != I915_TILING_NONE) { | |
1418 | ret = i915_gem_object_get_fence_reg(obj); | |
1419 | if (ret != 0) { | |
1420 | i915_gem_object_unpin(obj); | |
1421 | return ret; | |
1422 | } | |
1423 | } | |
1424 | ||
1425 | return 0; | |
1426 | } | |
1427 | ||
81255565 JB |
1428 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ |
1429 | static int | |
1430 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
1431 | int x, int y) | |
1432 | { | |
1433 | struct drm_device *dev = crtc->dev; | |
1434 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1435 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1436 | struct intel_framebuffer *intel_fb; | |
1437 | struct drm_i915_gem_object *obj_priv; | |
1438 | struct drm_gem_object *obj; | |
1439 | int plane = intel_crtc->plane; | |
1440 | unsigned long Start, Offset; | |
1441 | int dspbase = (plane == 0 ? DSPAADDR : DSPBADDR); | |
1442 | int dspsurf = (plane == 0 ? DSPASURF : DSPBSURF); | |
1443 | int dspstride = (plane == 0) ? DSPASTRIDE : DSPBSTRIDE; | |
1444 | int dsptileoff = (plane == 0 ? DSPATILEOFF : DSPBTILEOFF); | |
1445 | int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; | |
1446 | u32 dspcntr; | |
1447 | ||
1448 | switch (plane) { | |
1449 | case 0: | |
1450 | case 1: | |
1451 | break; | |
1452 | default: | |
1453 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
1454 | return -EINVAL; | |
1455 | } | |
1456 | ||
1457 | intel_fb = to_intel_framebuffer(fb); | |
1458 | obj = intel_fb->obj; | |
1459 | obj_priv = to_intel_bo(obj); | |
1460 | ||
1461 | dspcntr = I915_READ(dspcntr_reg); | |
1462 | /* Mask out pixel format bits in case we change it */ | |
1463 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
1464 | switch (fb->bits_per_pixel) { | |
1465 | case 8: | |
1466 | dspcntr |= DISPPLANE_8BPP; | |
1467 | break; | |
1468 | case 16: | |
1469 | if (fb->depth == 15) | |
1470 | dspcntr |= DISPPLANE_15_16BPP; | |
1471 | else | |
1472 | dspcntr |= DISPPLANE_16BPP; | |
1473 | break; | |
1474 | case 24: | |
1475 | case 32: | |
1476 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
1477 | break; | |
1478 | default: | |
1479 | DRM_ERROR("Unknown color depth\n"); | |
1480 | return -EINVAL; | |
1481 | } | |
1482 | if (IS_I965G(dev)) { | |
1483 | if (obj_priv->tiling_mode != I915_TILING_NONE) | |
1484 | dspcntr |= DISPPLANE_TILED; | |
1485 | else | |
1486 | dspcntr &= ~DISPPLANE_TILED; | |
1487 | } | |
1488 | ||
1489 | if (IS_IRONLAKE(dev)) | |
1490 | /* must disable */ | |
1491 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
1492 | ||
1493 | I915_WRITE(dspcntr_reg, dspcntr); | |
1494 | ||
1495 | Start = obj_priv->gtt_offset; | |
1496 | Offset = y * fb->pitch + x * (fb->bits_per_pixel / 8); | |
1497 | ||
1498 | DRM_DEBUG("Writing base %08lX %08lX %d %d\n", Start, Offset, x, y); | |
1499 | I915_WRITE(dspstride, fb->pitch); | |
1500 | if (IS_I965G(dev)) { | |
1501 | I915_WRITE(dspbase, Offset); | |
1502 | I915_READ(dspbase); | |
1503 | I915_WRITE(dspsurf, Start); | |
1504 | I915_READ(dspsurf); | |
1505 | I915_WRITE(dsptileoff, (y << 16) | x); | |
1506 | } else { | |
1507 | I915_WRITE(dspbase, Start + Offset); | |
1508 | I915_READ(dspbase); | |
1509 | } | |
1510 | ||
1511 | if ((IS_I965G(dev) || plane == 0)) | |
1512 | intel_update_fbc(crtc, &crtc->mode); | |
1513 | ||
9d0498a2 | 1514 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
81255565 JB |
1515 | intel_increase_pllclock(crtc, true); |
1516 | ||
1517 | return 0; | |
1518 | } | |
1519 | ||
5c3b82e2 | 1520 | static int |
3c4fdcfb KH |
1521 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
1522 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
1523 | { |
1524 | struct drm_device *dev = crtc->dev; | |
1525 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1526 | struct drm_i915_master_private *master_priv; | |
1527 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1528 | struct intel_framebuffer *intel_fb; | |
1529 | struct drm_i915_gem_object *obj_priv; | |
1530 | struct drm_gem_object *obj; | |
1531 | int pipe = intel_crtc->pipe; | |
80824003 | 1532 | int plane = intel_crtc->plane; |
79e53945 | 1533 | unsigned long Start, Offset; |
80824003 JB |
1534 | int dspbase = (plane == 0 ? DSPAADDR : DSPBADDR); |
1535 | int dspsurf = (plane == 0 ? DSPASURF : DSPBSURF); | |
1536 | int dspstride = (plane == 0) ? DSPASTRIDE : DSPBSTRIDE; | |
1537 | int dsptileoff = (plane == 0 ? DSPATILEOFF : DSPBTILEOFF); | |
1538 | int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; | |
6b95a207 | 1539 | u32 dspcntr; |
5c3b82e2 | 1540 | int ret; |
79e53945 JB |
1541 | |
1542 | /* no fb bound */ | |
1543 | if (!crtc->fb) { | |
28c97730 | 1544 | DRM_DEBUG_KMS("No FB bound\n"); |
5c3b82e2 CW |
1545 | return 0; |
1546 | } | |
1547 | ||
80824003 | 1548 | switch (plane) { |
5c3b82e2 CW |
1549 | case 0: |
1550 | case 1: | |
1551 | break; | |
1552 | default: | |
80824003 | 1553 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); |
5c3b82e2 | 1554 | return -EINVAL; |
79e53945 JB |
1555 | } |
1556 | ||
1557 | intel_fb = to_intel_framebuffer(crtc->fb); | |
79e53945 | 1558 | obj = intel_fb->obj; |
23010e43 | 1559 | obj_priv = to_intel_bo(obj); |
79e53945 | 1560 | |
5c3b82e2 | 1561 | mutex_lock(&dev->struct_mutex); |
6b95a207 | 1562 | ret = intel_pin_and_fence_fb_obj(dev, obj); |
5c3b82e2 CW |
1563 | if (ret != 0) { |
1564 | mutex_unlock(&dev->struct_mutex); | |
1565 | return ret; | |
1566 | } | |
79e53945 | 1567 | |
b9241ea3 | 1568 | ret = i915_gem_object_set_to_display_plane(obj); |
5c3b82e2 | 1569 | if (ret != 0) { |
8c4b8c3f | 1570 | i915_gem_object_unpin(obj); |
5c3b82e2 CW |
1571 | mutex_unlock(&dev->struct_mutex); |
1572 | return ret; | |
1573 | } | |
79e53945 JB |
1574 | |
1575 | dspcntr = I915_READ(dspcntr_reg); | |
712531bf JB |
1576 | /* Mask out pixel format bits in case we change it */ |
1577 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
79e53945 JB |
1578 | switch (crtc->fb->bits_per_pixel) { |
1579 | case 8: | |
1580 | dspcntr |= DISPPLANE_8BPP; | |
1581 | break; | |
1582 | case 16: | |
1583 | if (crtc->fb->depth == 15) | |
1584 | dspcntr |= DISPPLANE_15_16BPP; | |
1585 | else | |
1586 | dspcntr |= DISPPLANE_16BPP; | |
1587 | break; | |
1588 | case 24: | |
1589 | case 32: | |
a4f45cf1 KH |
1590 | if (crtc->fb->depth == 30) |
1591 | dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA; | |
1592 | else | |
1593 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
79e53945 JB |
1594 | break; |
1595 | default: | |
1596 | DRM_ERROR("Unknown color depth\n"); | |
8c4b8c3f | 1597 | i915_gem_object_unpin(obj); |
5c3b82e2 CW |
1598 | mutex_unlock(&dev->struct_mutex); |
1599 | return -EINVAL; | |
79e53945 | 1600 | } |
f544847f JB |
1601 | if (IS_I965G(dev)) { |
1602 | if (obj_priv->tiling_mode != I915_TILING_NONE) | |
1603 | dspcntr |= DISPPLANE_TILED; | |
1604 | else | |
1605 | dspcntr &= ~DISPPLANE_TILED; | |
1606 | } | |
1607 | ||
bad720ff | 1608 | if (HAS_PCH_SPLIT(dev)) |
553bd149 ZW |
1609 | /* must disable */ |
1610 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
1611 | ||
79e53945 JB |
1612 | I915_WRITE(dspcntr_reg, dspcntr); |
1613 | ||
5c3b82e2 CW |
1614 | Start = obj_priv->gtt_offset; |
1615 | Offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8); | |
1616 | ||
a7faf32d CW |
1617 | DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n", |
1618 | Start, Offset, x, y, crtc->fb->pitch); | |
5c3b82e2 | 1619 | I915_WRITE(dspstride, crtc->fb->pitch); |
79e53945 | 1620 | if (IS_I965G(dev)) { |
79e53945 | 1621 | I915_WRITE(dspsurf, Start); |
f544847f | 1622 | I915_WRITE(dsptileoff, (y << 16) | x); |
20a09459 | 1623 | I915_WRITE(dspbase, Offset); |
79e53945 JB |
1624 | } else { |
1625 | I915_WRITE(dspbase, Start + Offset); | |
79e53945 | 1626 | } |
20a09459 | 1627 | POSTING_READ(dspbase); |
79e53945 | 1628 | |
74dff282 | 1629 | if ((IS_I965G(dev) || plane == 0)) |
edb81956 JB |
1630 | intel_update_fbc(crtc, &crtc->mode); |
1631 | ||
9d0498a2 | 1632 | intel_wait_for_vblank(dev, pipe); |
3c4fdcfb KH |
1633 | |
1634 | if (old_fb) { | |
1635 | intel_fb = to_intel_framebuffer(old_fb); | |
23010e43 | 1636 | obj_priv = to_intel_bo(intel_fb->obj); |
3c4fdcfb KH |
1637 | i915_gem_object_unpin(intel_fb->obj); |
1638 | } | |
652c393a JB |
1639 | intel_increase_pllclock(crtc, true); |
1640 | ||
5c3b82e2 | 1641 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
1642 | |
1643 | if (!dev->primary->master) | |
5c3b82e2 | 1644 | return 0; |
79e53945 JB |
1645 | |
1646 | master_priv = dev->primary->master->driver_priv; | |
1647 | if (!master_priv->sarea_priv) | |
5c3b82e2 | 1648 | return 0; |
79e53945 | 1649 | |
5c3b82e2 | 1650 | if (pipe) { |
79e53945 JB |
1651 | master_priv->sarea_priv->pipeB_x = x; |
1652 | master_priv->sarea_priv->pipeB_y = y; | |
5c3b82e2 CW |
1653 | } else { |
1654 | master_priv->sarea_priv->pipeA_x = x; | |
1655 | master_priv->sarea_priv->pipeA_y = y; | |
79e53945 | 1656 | } |
5c3b82e2 CW |
1657 | |
1658 | return 0; | |
79e53945 JB |
1659 | } |
1660 | ||
f2b115e6 | 1661 | static void ironlake_set_pll_edp (struct drm_crtc *crtc, int clock) |
32f9d658 ZW |
1662 | { |
1663 | struct drm_device *dev = crtc->dev; | |
1664 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1665 | u32 dpa_ctl; | |
1666 | ||
28c97730 | 1667 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
32f9d658 ZW |
1668 | dpa_ctl = I915_READ(DP_A); |
1669 | dpa_ctl &= ~DP_PLL_FREQ_MASK; | |
1670 | ||
1671 | if (clock < 200000) { | |
1672 | u32 temp; | |
1673 | dpa_ctl |= DP_PLL_FREQ_160MHZ; | |
1674 | /* workaround for 160Mhz: | |
1675 | 1) program 0x4600c bits 15:0 = 0x8124 | |
1676 | 2) program 0x46010 bit 0 = 1 | |
1677 | 3) program 0x46034 bit 24 = 1 | |
1678 | 4) program 0x64000 bit 14 = 1 | |
1679 | */ | |
1680 | temp = I915_READ(0x4600c); | |
1681 | temp &= 0xffff0000; | |
1682 | I915_WRITE(0x4600c, temp | 0x8124); | |
1683 | ||
1684 | temp = I915_READ(0x46010); | |
1685 | I915_WRITE(0x46010, temp | 1); | |
1686 | ||
1687 | temp = I915_READ(0x46034); | |
1688 | I915_WRITE(0x46034, temp | (1 << 24)); | |
1689 | } else { | |
1690 | dpa_ctl |= DP_PLL_FREQ_270MHZ; | |
1691 | } | |
1692 | I915_WRITE(DP_A, dpa_ctl); | |
1693 | ||
1694 | udelay(500); | |
1695 | } | |
1696 | ||
8db9d77b ZW |
1697 | /* The FDI link training functions for ILK/Ibexpeak. */ |
1698 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
1699 | { | |
1700 | struct drm_device *dev = crtc->dev; | |
1701 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1702 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1703 | int pipe = intel_crtc->pipe; | |
1704 | int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; | |
1705 | int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; | |
1706 | int fdi_rx_iir_reg = (pipe == 0) ? FDI_RXA_IIR : FDI_RXB_IIR; | |
1707 | int fdi_rx_imr_reg = (pipe == 0) ? FDI_RXA_IMR : FDI_RXB_IMR; | |
1708 | u32 temp, tries = 0; | |
1709 | ||
e1a44743 AJ |
1710 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
1711 | for train result */ | |
1712 | temp = I915_READ(fdi_rx_imr_reg); | |
1713 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
1714 | temp &= ~FDI_RX_BIT_LOCK; | |
1715 | I915_WRITE(fdi_rx_imr_reg, temp); | |
1716 | I915_READ(fdi_rx_imr_reg); | |
1717 | udelay(150); | |
1718 | ||
8db9d77b ZW |
1719 | /* enable CPU FDI TX and PCH FDI RX */ |
1720 | temp = I915_READ(fdi_tx_reg); | |
1721 | temp |= FDI_TX_ENABLE; | |
77ffb597 AJ |
1722 | temp &= ~(7 << 19); |
1723 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
1724 | temp &= ~FDI_LINK_TRAIN_NONE; |
1725 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1726 | I915_WRITE(fdi_tx_reg, temp); | |
1727 | I915_READ(fdi_tx_reg); | |
1728 | ||
1729 | temp = I915_READ(fdi_rx_reg); | |
1730 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1731 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1732 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENABLE); | |
1733 | I915_READ(fdi_rx_reg); | |
1734 | udelay(150); | |
1735 | ||
e1a44743 | 1736 | for (tries = 0; tries < 5; tries++) { |
8db9d77b ZW |
1737 | temp = I915_READ(fdi_rx_iir_reg); |
1738 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
1739 | ||
1740 | if ((temp & FDI_RX_BIT_LOCK)) { | |
1741 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
1742 | I915_WRITE(fdi_rx_iir_reg, | |
1743 | temp | FDI_RX_BIT_LOCK); | |
1744 | break; | |
1745 | } | |
8db9d77b | 1746 | } |
e1a44743 AJ |
1747 | if (tries == 5) |
1748 | DRM_DEBUG_KMS("FDI train 1 fail!\n"); | |
8db9d77b ZW |
1749 | |
1750 | /* Train 2 */ | |
1751 | temp = I915_READ(fdi_tx_reg); | |
1752 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1753 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
1754 | I915_WRITE(fdi_tx_reg, temp); | |
1755 | ||
1756 | temp = I915_READ(fdi_rx_reg); | |
1757 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1758 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
1759 | I915_WRITE(fdi_rx_reg, temp); | |
1760 | udelay(150); | |
1761 | ||
1762 | tries = 0; | |
1763 | ||
e1a44743 | 1764 | for (tries = 0; tries < 5; tries++) { |
8db9d77b ZW |
1765 | temp = I915_READ(fdi_rx_iir_reg); |
1766 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
1767 | ||
1768 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
1769 | I915_WRITE(fdi_rx_iir_reg, | |
1770 | temp | FDI_RX_SYMBOL_LOCK); | |
1771 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
1772 | break; | |
1773 | } | |
8db9d77b | 1774 | } |
e1a44743 AJ |
1775 | if (tries == 5) |
1776 | DRM_DEBUG_KMS("FDI train 2 fail!\n"); | |
8db9d77b ZW |
1777 | |
1778 | DRM_DEBUG_KMS("FDI train done\n"); | |
1779 | } | |
1780 | ||
1781 | static int snb_b_fdi_train_param [] = { | |
1782 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, | |
1783 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
1784 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
1785 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
1786 | }; | |
1787 | ||
1788 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
1789 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
1790 | { | |
1791 | struct drm_device *dev = crtc->dev; | |
1792 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1793 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1794 | int pipe = intel_crtc->pipe; | |
1795 | int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; | |
1796 | int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; | |
1797 | int fdi_rx_iir_reg = (pipe == 0) ? FDI_RXA_IIR : FDI_RXB_IIR; | |
1798 | int fdi_rx_imr_reg = (pipe == 0) ? FDI_RXA_IMR : FDI_RXB_IMR; | |
1799 | u32 temp, i; | |
1800 | ||
e1a44743 AJ |
1801 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
1802 | for train result */ | |
1803 | temp = I915_READ(fdi_rx_imr_reg); | |
1804 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
1805 | temp &= ~FDI_RX_BIT_LOCK; | |
1806 | I915_WRITE(fdi_rx_imr_reg, temp); | |
1807 | I915_READ(fdi_rx_imr_reg); | |
1808 | udelay(150); | |
1809 | ||
8db9d77b ZW |
1810 | /* enable CPU FDI TX and PCH FDI RX */ |
1811 | temp = I915_READ(fdi_tx_reg); | |
1812 | temp |= FDI_TX_ENABLE; | |
77ffb597 AJ |
1813 | temp &= ~(7 << 19); |
1814 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
1815 | temp &= ~FDI_LINK_TRAIN_NONE; |
1816 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1817 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
1818 | /* SNB-B */ | |
1819 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
1820 | I915_WRITE(fdi_tx_reg, temp); | |
1821 | I915_READ(fdi_tx_reg); | |
1822 | ||
1823 | temp = I915_READ(fdi_rx_reg); | |
1824 | if (HAS_PCH_CPT(dev)) { | |
1825 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
1826 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
1827 | } else { | |
1828 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1829 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1830 | } | |
1831 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENABLE); | |
1832 | I915_READ(fdi_rx_reg); | |
1833 | udelay(150); | |
1834 | ||
8db9d77b ZW |
1835 | for (i = 0; i < 4; i++ ) { |
1836 | temp = I915_READ(fdi_tx_reg); | |
1837 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
1838 | temp |= snb_b_fdi_train_param[i]; | |
1839 | I915_WRITE(fdi_tx_reg, temp); | |
1840 | udelay(500); | |
1841 | ||
1842 | temp = I915_READ(fdi_rx_iir_reg); | |
1843 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
1844 | ||
1845 | if (temp & FDI_RX_BIT_LOCK) { | |
1846 | I915_WRITE(fdi_rx_iir_reg, | |
1847 | temp | FDI_RX_BIT_LOCK); | |
1848 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
1849 | break; | |
1850 | } | |
1851 | } | |
1852 | if (i == 4) | |
1853 | DRM_DEBUG_KMS("FDI train 1 fail!\n"); | |
1854 | ||
1855 | /* Train 2 */ | |
1856 | temp = I915_READ(fdi_tx_reg); | |
1857 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1858 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
1859 | if (IS_GEN6(dev)) { | |
1860 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
1861 | /* SNB-B */ | |
1862 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
1863 | } | |
1864 | I915_WRITE(fdi_tx_reg, temp); | |
1865 | ||
1866 | temp = I915_READ(fdi_rx_reg); | |
1867 | if (HAS_PCH_CPT(dev)) { | |
1868 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
1869 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
1870 | } else { | |
1871 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1872 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
1873 | } | |
1874 | I915_WRITE(fdi_rx_reg, temp); | |
1875 | udelay(150); | |
1876 | ||
1877 | for (i = 0; i < 4; i++ ) { | |
1878 | temp = I915_READ(fdi_tx_reg); | |
1879 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
1880 | temp |= snb_b_fdi_train_param[i]; | |
1881 | I915_WRITE(fdi_tx_reg, temp); | |
1882 | udelay(500); | |
1883 | ||
1884 | temp = I915_READ(fdi_rx_iir_reg); | |
1885 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
1886 | ||
1887 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
1888 | I915_WRITE(fdi_rx_iir_reg, | |
1889 | temp | FDI_RX_SYMBOL_LOCK); | |
1890 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
1891 | break; | |
1892 | } | |
1893 | } | |
1894 | if (i == 4) | |
1895 | DRM_DEBUG_KMS("FDI train 2 fail!\n"); | |
1896 | ||
1897 | DRM_DEBUG_KMS("FDI train done.\n"); | |
1898 | } | |
1899 | ||
f2b115e6 | 1900 | static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) |
2c07245f ZW |
1901 | { |
1902 | struct drm_device *dev = crtc->dev; | |
1903 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1904 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1905 | int pipe = intel_crtc->pipe; | |
7662c8bd | 1906 | int plane = intel_crtc->plane; |
2c07245f ZW |
1907 | int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B; |
1908 | int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; | |
1909 | int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; | |
1910 | int dspbase_reg = (plane == 0) ? DSPAADDR : DSPBADDR; | |
1911 | int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; | |
1912 | int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; | |
2c07245f ZW |
1913 | int transconf_reg = (pipe == 0) ? TRANSACONF : TRANSBCONF; |
1914 | int pf_ctl_reg = (pipe == 0) ? PFA_CTL_1 : PFB_CTL_1; | |
249c0e64 | 1915 | int pf_win_size = (pipe == 0) ? PFA_WIN_SZ : PFB_WIN_SZ; |
8dd81a38 | 1916 | int pf_win_pos = (pipe == 0) ? PFA_WIN_POS : PFB_WIN_POS; |
2c07245f ZW |
1917 | int cpu_htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B; |
1918 | int cpu_hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B; | |
1919 | int cpu_hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B; | |
1920 | int cpu_vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B; | |
1921 | int cpu_vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B; | |
1922 | int cpu_vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B; | |
1923 | int trans_htot_reg = (pipe == 0) ? TRANS_HTOTAL_A : TRANS_HTOTAL_B; | |
1924 | int trans_hblank_reg = (pipe == 0) ? TRANS_HBLANK_A : TRANS_HBLANK_B; | |
1925 | int trans_hsync_reg = (pipe == 0) ? TRANS_HSYNC_A : TRANS_HSYNC_B; | |
1926 | int trans_vtot_reg = (pipe == 0) ? TRANS_VTOTAL_A : TRANS_VTOTAL_B; | |
1927 | int trans_vblank_reg = (pipe == 0) ? TRANS_VBLANK_A : TRANS_VBLANK_B; | |
1928 | int trans_vsync_reg = (pipe == 0) ? TRANS_VSYNC_A : TRANS_VSYNC_B; | |
8db9d77b | 1929 | int trans_dpll_sel = (pipe == 0) ? 0 : 1; |
2c07245f | 1930 | u32 temp; |
8faf3b31 ZY |
1931 | u32 pipe_bpc; |
1932 | ||
1933 | temp = I915_READ(pipeconf_reg); | |
1934 | pipe_bpc = temp & PIPE_BPC_MASK; | |
79e53945 | 1935 | |
2c07245f ZW |
1936 | /* XXX: When our outputs are all unaware of DPMS modes other than off |
1937 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
1938 | */ | |
1939 | switch (mode) { | |
1940 | case DRM_MODE_DPMS_ON: | |
1941 | case DRM_MODE_DPMS_STANDBY: | |
1942 | case DRM_MODE_DPMS_SUSPEND: | |
868dc58f | 1943 | DRM_DEBUG_KMS("crtc %d/%d dpms on\n", pipe, plane); |
1b3c7a47 ZW |
1944 | |
1945 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1946 | temp = I915_READ(PCH_LVDS); | |
1947 | if ((temp & LVDS_PORT_EN) == 0) { | |
1948 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); | |
1949 | POSTING_READ(PCH_LVDS); | |
1950 | } | |
1951 | } | |
1952 | ||
d240f20f | 1953 | if (!HAS_eDP) { |
2c07245f | 1954 | |
32f9d658 ZW |
1955 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
1956 | temp = I915_READ(fdi_rx_reg); | |
8faf3b31 ZY |
1957 | /* |
1958 | * make the BPC in FDI Rx be consistent with that in | |
1959 | * pipeconf reg. | |
1960 | */ | |
1961 | temp &= ~(0x7 << 16); | |
1962 | temp |= (pipe_bpc << 11); | |
77ffb597 AJ |
1963 | temp &= ~(7 << 19); |
1964 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
1965 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE); | |
32f9d658 ZW |
1966 | I915_READ(fdi_rx_reg); |
1967 | udelay(200); | |
1968 | ||
8db9d77b ZW |
1969 | /* Switch from Rawclk to PCDclk */ |
1970 | temp = I915_READ(fdi_rx_reg); | |
1971 | I915_WRITE(fdi_rx_reg, temp | FDI_SEL_PCDCLK); | |
32f9d658 ZW |
1972 | I915_READ(fdi_rx_reg); |
1973 | udelay(200); | |
1974 | ||
f2b115e6 | 1975 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
32f9d658 ZW |
1976 | temp = I915_READ(fdi_tx_reg); |
1977 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
1978 | I915_WRITE(fdi_tx_reg, temp | FDI_TX_PLL_ENABLE); | |
1979 | I915_READ(fdi_tx_reg); | |
1980 | udelay(100); | |
1981 | } | |
2c07245f ZW |
1982 | } |
1983 | ||
8dd81a38 | 1984 | /* Enable panel fitting for LVDS */ |
1fc79478 ZY |
1985 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) |
1986 | || HAS_eDP || intel_pch_has_edp(crtc)) { | |
1d8e1c75 CW |
1987 | if (dev_priv->pch_pf_size) { |
1988 | temp = I915_READ(pf_ctl_reg); | |
1989 | I915_WRITE(pf_ctl_reg, temp | PF_ENABLE | PF_FILTER_MED_3x3); | |
1990 | I915_WRITE(pf_win_pos, dev_priv->pch_pf_pos); | |
1991 | I915_WRITE(pf_win_size, dev_priv->pch_pf_size); | |
1992 | } else | |
1993 | I915_WRITE(pf_ctl_reg, temp & ~PF_ENABLE); | |
8dd81a38 ZW |
1994 | } |
1995 | ||
2c07245f ZW |
1996 | /* Enable CPU pipe */ |
1997 | temp = I915_READ(pipeconf_reg); | |
1998 | if ((temp & PIPEACONF_ENABLE) == 0) { | |
1999 | I915_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE); | |
2000 | I915_READ(pipeconf_reg); | |
2001 | udelay(100); | |
2002 | } | |
2003 | ||
2004 | /* configure and enable CPU plane */ | |
2005 | temp = I915_READ(dspcntr_reg); | |
2006 | if ((temp & DISPLAY_PLANE_ENABLE) == 0) { | |
2007 | I915_WRITE(dspcntr_reg, temp | DISPLAY_PLANE_ENABLE); | |
2008 | /* Flush the plane changes */ | |
2009 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
2010 | } | |
2011 | ||
32f9d658 | 2012 | if (!HAS_eDP) { |
8db9d77b ZW |
2013 | /* For PCH output, training FDI link */ |
2014 | if (IS_GEN6(dev)) | |
2015 | gen6_fdi_link_train(crtc); | |
2016 | else | |
2017 | ironlake_fdi_link_train(crtc); | |
2c07245f | 2018 | |
8db9d77b ZW |
2019 | /* enable PCH DPLL */ |
2020 | temp = I915_READ(pch_dpll_reg); | |
2021 | if ((temp & DPLL_VCO_ENABLE) == 0) { | |
2022 | I915_WRITE(pch_dpll_reg, temp | DPLL_VCO_ENABLE); | |
2023 | I915_READ(pch_dpll_reg); | |
32f9d658 | 2024 | } |
8db9d77b | 2025 | udelay(200); |
2c07245f | 2026 | |
8db9d77b ZW |
2027 | if (HAS_PCH_CPT(dev)) { |
2028 | /* Be sure PCH DPLL SEL is set */ | |
2029 | temp = I915_READ(PCH_DPLL_SEL); | |
2030 | if (trans_dpll_sel == 0 && | |
2031 | (temp & TRANSA_DPLL_ENABLE) == 0) | |
2032 | temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL); | |
2033 | else if (trans_dpll_sel == 1 && | |
2034 | (temp & TRANSB_DPLL_ENABLE) == 0) | |
2035 | temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); | |
2036 | I915_WRITE(PCH_DPLL_SEL, temp); | |
2037 | I915_READ(PCH_DPLL_SEL); | |
32f9d658 | 2038 | } |
2c07245f | 2039 | |
32f9d658 ZW |
2040 | /* set transcoder timing */ |
2041 | I915_WRITE(trans_htot_reg, I915_READ(cpu_htot_reg)); | |
2042 | I915_WRITE(trans_hblank_reg, I915_READ(cpu_hblank_reg)); | |
2043 | I915_WRITE(trans_hsync_reg, I915_READ(cpu_hsync_reg)); | |
2c07245f | 2044 | |
32f9d658 ZW |
2045 | I915_WRITE(trans_vtot_reg, I915_READ(cpu_vtot_reg)); |
2046 | I915_WRITE(trans_vblank_reg, I915_READ(cpu_vblank_reg)); | |
2047 | I915_WRITE(trans_vsync_reg, I915_READ(cpu_vsync_reg)); | |
2c07245f | 2048 | |
8db9d77b ZW |
2049 | /* enable normal train */ |
2050 | temp = I915_READ(fdi_tx_reg); | |
2051 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2052 | I915_WRITE(fdi_tx_reg, temp | FDI_LINK_TRAIN_NONE | | |
2053 | FDI_TX_ENHANCE_FRAME_ENABLE); | |
2054 | I915_READ(fdi_tx_reg); | |
2055 | ||
2056 | temp = I915_READ(fdi_rx_reg); | |
2057 | if (HAS_PCH_CPT(dev)) { | |
2058 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2059 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2060 | } else { | |
2061 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2062 | temp |= FDI_LINK_TRAIN_NONE; | |
2063 | } | |
2064 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2065 | I915_READ(fdi_rx_reg); | |
2066 | ||
2067 | /* wait one idle pattern time */ | |
2068 | udelay(100); | |
2069 | ||
e3421a18 ZW |
2070 | /* For PCH DP, enable TRANS_DP_CTL */ |
2071 | if (HAS_PCH_CPT(dev) && | |
2072 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { | |
2073 | int trans_dp_ctl = (pipe == 0) ? TRANS_DP_CTL_A : TRANS_DP_CTL_B; | |
2074 | int reg; | |
2075 | ||
2076 | reg = I915_READ(trans_dp_ctl); | |
94113cec CW |
2077 | reg &= ~(TRANS_DP_PORT_SEL_MASK | |
2078 | TRANS_DP_SYNC_MASK); | |
2079 | reg |= (TRANS_DP_OUTPUT_ENABLE | | |
2080 | TRANS_DP_ENH_FRAMING); | |
d6d95268 AJ |
2081 | |
2082 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
2083 | reg |= TRANS_DP_HSYNC_ACTIVE_HIGH; | |
2084 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) | |
2085 | reg |= TRANS_DP_VSYNC_ACTIVE_HIGH; | |
e3421a18 ZW |
2086 | |
2087 | switch (intel_trans_dp_port_sel(crtc)) { | |
2088 | case PCH_DP_B: | |
2089 | reg |= TRANS_DP_PORT_SEL_B; | |
2090 | break; | |
2091 | case PCH_DP_C: | |
2092 | reg |= TRANS_DP_PORT_SEL_C; | |
2093 | break; | |
2094 | case PCH_DP_D: | |
2095 | reg |= TRANS_DP_PORT_SEL_D; | |
2096 | break; | |
2097 | default: | |
2098 | DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); | |
2099 | reg |= TRANS_DP_PORT_SEL_B; | |
2100 | break; | |
2101 | } | |
2102 | ||
2103 | I915_WRITE(trans_dp_ctl, reg); | |
2104 | POSTING_READ(trans_dp_ctl); | |
2105 | } | |
2106 | ||
32f9d658 ZW |
2107 | /* enable PCH transcoder */ |
2108 | temp = I915_READ(transconf_reg); | |
8faf3b31 ZY |
2109 | /* |
2110 | * make the BPC in transcoder be consistent with | |
2111 | * that in pipeconf reg. | |
2112 | */ | |
2113 | temp &= ~PIPE_BPC_MASK; | |
2114 | temp |= pipe_bpc; | |
32f9d658 ZW |
2115 | I915_WRITE(transconf_reg, temp | TRANS_ENABLE); |
2116 | I915_READ(transconf_reg); | |
2c07245f | 2117 | |
913d8d11 CW |
2118 | if (wait_for(I915_READ(transconf_reg) & TRANS_STATE_ENABLE, 10, 0)) |
2119 | DRM_ERROR("failed to enable transcoder\n"); | |
32f9d658 | 2120 | } |
2c07245f ZW |
2121 | |
2122 | intel_crtc_load_lut(crtc); | |
2123 | ||
b52eb4dc | 2124 | intel_update_fbc(crtc, &crtc->mode); |
868dc58f | 2125 | break; |
b52eb4dc | 2126 | |
2c07245f | 2127 | case DRM_MODE_DPMS_OFF: |
868dc58f | 2128 | DRM_DEBUG_KMS("crtc %d/%d dpms off\n", pipe, plane); |
2c07245f | 2129 | |
c062df61 | 2130 | drm_vblank_off(dev, pipe); |
2c07245f ZW |
2131 | /* Disable display plane */ |
2132 | temp = I915_READ(dspcntr_reg); | |
2133 | if ((temp & DISPLAY_PLANE_ENABLE) != 0) { | |
2134 | I915_WRITE(dspcntr_reg, temp & ~DISPLAY_PLANE_ENABLE); | |
2135 | /* Flush the plane changes */ | |
2136 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
2137 | I915_READ(dspbase_reg); | |
2138 | } | |
2139 | ||
b52eb4dc ZY |
2140 | if (dev_priv->cfb_plane == plane && |
2141 | dev_priv->display.disable_fbc) | |
2142 | dev_priv->display.disable_fbc(dev); | |
2143 | ||
2c07245f ZW |
2144 | /* disable cpu pipe, disable after all planes disabled */ |
2145 | temp = I915_READ(pipeconf_reg); | |
2146 | if ((temp & PIPEACONF_ENABLE) != 0) { | |
2147 | I915_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE); | |
913d8d11 | 2148 | |
2c07245f | 2149 | /* wait for cpu pipe off, pipe state */ |
913d8d11 CW |
2150 | if (wait_for((I915_READ(pipeconf_reg) & I965_PIPECONF_ACTIVE) == 0, 50, 1)) |
2151 | DRM_ERROR("failed to turn off cpu pipe\n"); | |
2c07245f | 2152 | } else |
28c97730 | 2153 | DRM_DEBUG_KMS("crtc %d is disabled\n", pipe); |
2c07245f | 2154 | |
1b3c7a47 ZW |
2155 | udelay(100); |
2156 | ||
2157 | /* Disable PF */ | |
2158 | temp = I915_READ(pf_ctl_reg); | |
2159 | if ((temp & PF_ENABLE) != 0) { | |
2160 | I915_WRITE(pf_ctl_reg, temp & ~PF_ENABLE); | |
2161 | I915_READ(pf_ctl_reg); | |
32f9d658 | 2162 | } |
1b3c7a47 | 2163 | I915_WRITE(pf_win_size, 0); |
8db9d77b ZW |
2164 | POSTING_READ(pf_win_size); |
2165 | ||
32f9d658 | 2166 | |
2c07245f ZW |
2167 | /* disable CPU FDI tx and PCH FDI rx */ |
2168 | temp = I915_READ(fdi_tx_reg); | |
2169 | I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_ENABLE); | |
2170 | I915_READ(fdi_tx_reg); | |
2171 | ||
2172 | temp = I915_READ(fdi_rx_reg); | |
8faf3b31 ZY |
2173 | /* BPC in FDI rx is consistent with that in pipeconf */ |
2174 | temp &= ~(0x07 << 16); | |
2175 | temp |= (pipe_bpc << 11); | |
2c07245f ZW |
2176 | I915_WRITE(fdi_rx_reg, temp & ~FDI_RX_ENABLE); |
2177 | I915_READ(fdi_rx_reg); | |
2178 | ||
249c0e64 ZW |
2179 | udelay(100); |
2180 | ||
2c07245f ZW |
2181 | /* still set train pattern 1 */ |
2182 | temp = I915_READ(fdi_tx_reg); | |
2183 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2184 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2185 | I915_WRITE(fdi_tx_reg, temp); | |
8db9d77b | 2186 | POSTING_READ(fdi_tx_reg); |
2c07245f ZW |
2187 | |
2188 | temp = I915_READ(fdi_rx_reg); | |
8db9d77b ZW |
2189 | if (HAS_PCH_CPT(dev)) { |
2190 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2191 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2192 | } else { | |
2193 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2194 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2195 | } | |
2c07245f | 2196 | I915_WRITE(fdi_rx_reg, temp); |
8db9d77b | 2197 | POSTING_READ(fdi_rx_reg); |
2c07245f | 2198 | |
249c0e64 ZW |
2199 | udelay(100); |
2200 | ||
1b3c7a47 ZW |
2201 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
2202 | temp = I915_READ(PCH_LVDS); | |
2203 | I915_WRITE(PCH_LVDS, temp & ~LVDS_PORT_EN); | |
2204 | I915_READ(PCH_LVDS); | |
2205 | udelay(100); | |
2206 | } | |
2207 | ||
2c07245f ZW |
2208 | /* disable PCH transcoder */ |
2209 | temp = I915_READ(transconf_reg); | |
2210 | if ((temp & TRANS_ENABLE) != 0) { | |
2211 | I915_WRITE(transconf_reg, temp & ~TRANS_ENABLE); | |
913d8d11 | 2212 | |
2c07245f | 2213 | /* wait for PCH transcoder off, transcoder state */ |
913d8d11 CW |
2214 | if (wait_for((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) == 0, 50, 1)) |
2215 | DRM_ERROR("failed to disable transcoder\n"); | |
2c07245f | 2216 | } |
8db9d77b | 2217 | |
8faf3b31 ZY |
2218 | temp = I915_READ(transconf_reg); |
2219 | /* BPC in transcoder is consistent with that in pipeconf */ | |
2220 | temp &= ~PIPE_BPC_MASK; | |
2221 | temp |= pipe_bpc; | |
2222 | I915_WRITE(transconf_reg, temp); | |
2223 | I915_READ(transconf_reg); | |
1b3c7a47 ZW |
2224 | udelay(100); |
2225 | ||
8db9d77b | 2226 | if (HAS_PCH_CPT(dev)) { |
e3421a18 ZW |
2227 | /* disable TRANS_DP_CTL */ |
2228 | int trans_dp_ctl = (pipe == 0) ? TRANS_DP_CTL_A : TRANS_DP_CTL_B; | |
2229 | int reg; | |
2230 | ||
2231 | reg = I915_READ(trans_dp_ctl); | |
2232 | reg &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); | |
2233 | I915_WRITE(trans_dp_ctl, reg); | |
2234 | POSTING_READ(trans_dp_ctl); | |
8db9d77b ZW |
2235 | |
2236 | /* disable DPLL_SEL */ | |
2237 | temp = I915_READ(PCH_DPLL_SEL); | |
2238 | if (trans_dpll_sel == 0) | |
2239 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); | |
2240 | else | |
2241 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); | |
2242 | I915_WRITE(PCH_DPLL_SEL, temp); | |
2243 | I915_READ(PCH_DPLL_SEL); | |
2244 | ||
2245 | } | |
2246 | ||
2c07245f ZW |
2247 | /* disable PCH DPLL */ |
2248 | temp = I915_READ(pch_dpll_reg); | |
8db9d77b ZW |
2249 | I915_WRITE(pch_dpll_reg, temp & ~DPLL_VCO_ENABLE); |
2250 | I915_READ(pch_dpll_reg); | |
2c07245f | 2251 | |
8db9d77b | 2252 | /* Switch from PCDclk to Rawclk */ |
1b3c7a47 ZW |
2253 | temp = I915_READ(fdi_rx_reg); |
2254 | temp &= ~FDI_SEL_PCDCLK; | |
2255 | I915_WRITE(fdi_rx_reg, temp); | |
2256 | I915_READ(fdi_rx_reg); | |
2257 | ||
8db9d77b ZW |
2258 | /* Disable CPU FDI TX PLL */ |
2259 | temp = I915_READ(fdi_tx_reg); | |
2260 | I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_PLL_ENABLE); | |
2261 | I915_READ(fdi_tx_reg); | |
2262 | udelay(100); | |
2263 | ||
1b3c7a47 ZW |
2264 | temp = I915_READ(fdi_rx_reg); |
2265 | temp &= ~FDI_RX_PLL_ENABLE; | |
2266 | I915_WRITE(fdi_rx_reg, temp); | |
2267 | I915_READ(fdi_rx_reg); | |
2268 | ||
2c07245f | 2269 | /* Wait for the clocks to turn off. */ |
1b3c7a47 | 2270 | udelay(100); |
2c07245f ZW |
2271 | break; |
2272 | } | |
2273 | } | |
2274 | ||
02e792fb DV |
2275 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
2276 | { | |
2277 | struct intel_overlay *overlay; | |
03f77ea5 | 2278 | int ret; |
02e792fb DV |
2279 | |
2280 | if (!enable && intel_crtc->overlay) { | |
2281 | overlay = intel_crtc->overlay; | |
2282 | mutex_lock(&overlay->dev->struct_mutex); | |
03f77ea5 DV |
2283 | for (;;) { |
2284 | ret = intel_overlay_switch_off(overlay); | |
2285 | if (ret == 0) | |
2286 | break; | |
2287 | ||
2288 | ret = intel_overlay_recover_from_interrupt(overlay, 0); | |
2289 | if (ret != 0) { | |
2290 | /* overlay doesn't react anymore. Usually | |
2291 | * results in a black screen and an unkillable | |
2292 | * X server. */ | |
2293 | BUG(); | |
2294 | overlay->hw_wedged = HW_WEDGED; | |
2295 | break; | |
2296 | } | |
2297 | } | |
02e792fb DV |
2298 | mutex_unlock(&overlay->dev->struct_mutex); |
2299 | } | |
2300 | /* Let userspace switch the overlay on again. In most cases userspace | |
2301 | * has to recompute where to put it anyway. */ | |
2302 | ||
2303 | return; | |
2304 | } | |
2305 | ||
2c07245f | 2306 | static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) |
79e53945 JB |
2307 | { |
2308 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
2309 | struct drm_i915_private *dev_priv = dev->dev_private; |
2310 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2311 | int pipe = intel_crtc->pipe; | |
80824003 | 2312 | int plane = intel_crtc->plane; |
79e53945 | 2313 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; |
80824003 JB |
2314 | int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; |
2315 | int dspbase_reg = (plane == 0) ? DSPAADDR : DSPBADDR; | |
79e53945 JB |
2316 | int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; |
2317 | u32 temp; | |
79e53945 JB |
2318 | |
2319 | /* XXX: When our outputs are all unaware of DPMS modes other than off | |
2320 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
2321 | */ | |
2322 | switch (mode) { | |
2323 | case DRM_MODE_DPMS_ON: | |
2324 | case DRM_MODE_DPMS_STANDBY: | |
2325 | case DRM_MODE_DPMS_SUSPEND: | |
2326 | /* Enable the DPLL */ | |
2327 | temp = I915_READ(dpll_reg); | |
2328 | if ((temp & DPLL_VCO_ENABLE) == 0) { | |
2329 | I915_WRITE(dpll_reg, temp); | |
2330 | I915_READ(dpll_reg); | |
2331 | /* Wait for the clocks to stabilize. */ | |
2332 | udelay(150); | |
2333 | I915_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE); | |
2334 | I915_READ(dpll_reg); | |
2335 | /* Wait for the clocks to stabilize. */ | |
2336 | udelay(150); | |
2337 | I915_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE); | |
2338 | I915_READ(dpll_reg); | |
2339 | /* Wait for the clocks to stabilize. */ | |
2340 | udelay(150); | |
2341 | } | |
2342 | ||
2343 | /* Enable the pipe */ | |
2344 | temp = I915_READ(pipeconf_reg); | |
2345 | if ((temp & PIPEACONF_ENABLE) == 0) | |
2346 | I915_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE); | |
2347 | ||
2348 | /* Enable the plane */ | |
2349 | temp = I915_READ(dspcntr_reg); | |
2350 | if ((temp & DISPLAY_PLANE_ENABLE) == 0) { | |
2351 | I915_WRITE(dspcntr_reg, temp | DISPLAY_PLANE_ENABLE); | |
2352 | /* Flush the plane changes */ | |
2353 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
2354 | } | |
2355 | ||
2356 | intel_crtc_load_lut(crtc); | |
2357 | ||
74dff282 JB |
2358 | if ((IS_I965G(dev) || plane == 0)) |
2359 | intel_update_fbc(crtc, &crtc->mode); | |
80824003 | 2360 | |
79e53945 | 2361 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
02e792fb | 2362 | intel_crtc_dpms_overlay(intel_crtc, true); |
79e53945 JB |
2363 | break; |
2364 | case DRM_MODE_DPMS_OFF: | |
2365 | /* Give the overlay scaler a chance to disable if it's on this pipe */ | |
02e792fb | 2366 | intel_crtc_dpms_overlay(intel_crtc, false); |
778c9026 | 2367 | drm_vblank_off(dev, pipe); |
79e53945 | 2368 | |
e70236a8 JB |
2369 | if (dev_priv->cfb_plane == plane && |
2370 | dev_priv->display.disable_fbc) | |
2371 | dev_priv->display.disable_fbc(dev); | |
80824003 | 2372 | |
79e53945 JB |
2373 | /* Disable display plane */ |
2374 | temp = I915_READ(dspcntr_reg); | |
2375 | if ((temp & DISPLAY_PLANE_ENABLE) != 0) { | |
2376 | I915_WRITE(dspcntr_reg, temp & ~DISPLAY_PLANE_ENABLE); | |
2377 | /* Flush the plane changes */ | |
2378 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
2379 | I915_READ(dspbase_reg); | |
2380 | } | |
2381 | ||
9d0498a2 JB |
2382 | /* Wait for vblank for the disable to take effect */ |
2383 | intel_wait_for_vblank_off(dev, pipe); | |
79e53945 | 2384 | |
b690e96c JB |
2385 | /* Don't disable pipe A or pipe A PLLs if needed */ |
2386 | if (pipeconf_reg == PIPEACONF && | |
2387 | (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
2388 | goto skip_pipe_off; | |
2389 | ||
79e53945 JB |
2390 | /* Next, disable display pipes */ |
2391 | temp = I915_READ(pipeconf_reg); | |
2392 | if ((temp & PIPEACONF_ENABLE) != 0) { | |
2393 | I915_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE); | |
2394 | I915_READ(pipeconf_reg); | |
2395 | } | |
2396 | ||
2397 | /* Wait for vblank for the disable to take effect. */ | |
9d0498a2 | 2398 | intel_wait_for_vblank_off(dev, pipe); |
79e53945 JB |
2399 | |
2400 | temp = I915_READ(dpll_reg); | |
2401 | if ((temp & DPLL_VCO_ENABLE) != 0) { | |
2402 | I915_WRITE(dpll_reg, temp & ~DPLL_VCO_ENABLE); | |
2403 | I915_READ(dpll_reg); | |
2404 | } | |
b690e96c | 2405 | skip_pipe_off: |
79e53945 JB |
2406 | /* Wait for the clocks to turn off. */ |
2407 | udelay(150); | |
2408 | break; | |
2409 | } | |
2c07245f ZW |
2410 | } |
2411 | ||
2412 | /** | |
2413 | * Sets the power management mode of the pipe and plane. | |
2c07245f ZW |
2414 | */ |
2415 | static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) | |
2416 | { | |
2417 | struct drm_device *dev = crtc->dev; | |
e70236a8 | 2418 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f ZW |
2419 | struct drm_i915_master_private *master_priv; |
2420 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2421 | int pipe = intel_crtc->pipe; | |
2422 | bool enabled; | |
2423 | ||
65655d4a | 2424 | intel_crtc->dpms_mode = mode; |
87f8ebf3 | 2425 | intel_crtc->cursor_on = mode == DRM_MODE_DPMS_ON; |
debcaddc CW |
2426 | |
2427 | /* When switching on the display, ensure that SR is disabled | |
2428 | * with multiple pipes prior to enabling to new pipe. | |
2429 | * | |
2430 | * When switching off the display, make sure the cursor is | |
2431 | * properly hidden prior to disabling the pipe. | |
2432 | */ | |
2433 | if (mode == DRM_MODE_DPMS_ON) | |
2434 | intel_update_watermarks(dev); | |
2435 | else | |
2436 | intel_crtc_update_cursor(crtc); | |
2437 | ||
2438 | dev_priv->display.dpms(crtc, mode); | |
2439 | ||
2440 | if (mode == DRM_MODE_DPMS_ON) | |
2441 | intel_crtc_update_cursor(crtc); | |
2442 | else | |
2443 | intel_update_watermarks(dev); | |
87f8ebf3 | 2444 | |
79e53945 JB |
2445 | if (!dev->primary->master) |
2446 | return; | |
2447 | ||
2448 | master_priv = dev->primary->master->driver_priv; | |
2449 | if (!master_priv->sarea_priv) | |
2450 | return; | |
2451 | ||
2452 | enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF; | |
2453 | ||
2454 | switch (pipe) { | |
2455 | case 0: | |
2456 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
2457 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
2458 | break; | |
2459 | case 1: | |
2460 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
2461 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
2462 | break; | |
2463 | default: | |
2464 | DRM_ERROR("Can't update pipe %d in SAREA\n", pipe); | |
2465 | break; | |
2466 | } | |
79e53945 JB |
2467 | } |
2468 | ||
2469 | static void intel_crtc_prepare (struct drm_crtc *crtc) | |
2470 | { | |
2471 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
2472 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); | |
2473 | } | |
2474 | ||
2475 | static void intel_crtc_commit (struct drm_crtc *crtc) | |
2476 | { | |
2477 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
2478 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
2479 | } | |
2480 | ||
2481 | void intel_encoder_prepare (struct drm_encoder *encoder) | |
2482 | { | |
2483 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
2484 | /* lvds has its own version of prepare see intel_lvds_prepare */ | |
2485 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF); | |
2486 | } | |
2487 | ||
2488 | void intel_encoder_commit (struct drm_encoder *encoder) | |
2489 | { | |
2490 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
2491 | /* lvds has its own version of commit see intel_lvds_commit */ | |
2492 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
2493 | } | |
2494 | ||
ea5b213a CW |
2495 | void intel_encoder_destroy(struct drm_encoder *encoder) |
2496 | { | |
2497 | struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder); | |
2498 | ||
2499 | if (intel_encoder->ddc_bus) | |
2500 | intel_i2c_destroy(intel_encoder->ddc_bus); | |
2501 | ||
2502 | if (intel_encoder->i2c_bus) | |
2503 | intel_i2c_destroy(intel_encoder->i2c_bus); | |
2504 | ||
2505 | drm_encoder_cleanup(encoder); | |
2506 | kfree(intel_encoder); | |
2507 | } | |
2508 | ||
79e53945 JB |
2509 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
2510 | struct drm_display_mode *mode, | |
2511 | struct drm_display_mode *adjusted_mode) | |
2512 | { | |
2c07245f | 2513 | struct drm_device *dev = crtc->dev; |
bad720ff | 2514 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f | 2515 | /* FDI link clock is fixed at 2.7G */ |
2377b741 JB |
2516 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
2517 | return false; | |
2c07245f | 2518 | } |
79e53945 JB |
2519 | return true; |
2520 | } | |
2521 | ||
e70236a8 JB |
2522 | static int i945_get_display_clock_speed(struct drm_device *dev) |
2523 | { | |
2524 | return 400000; | |
2525 | } | |
79e53945 | 2526 | |
e70236a8 | 2527 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 2528 | { |
e70236a8 JB |
2529 | return 333000; |
2530 | } | |
79e53945 | 2531 | |
e70236a8 JB |
2532 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
2533 | { | |
2534 | return 200000; | |
2535 | } | |
79e53945 | 2536 | |
e70236a8 JB |
2537 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
2538 | { | |
2539 | u16 gcfgc = 0; | |
79e53945 | 2540 | |
e70236a8 JB |
2541 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
2542 | ||
2543 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
2544 | return 133000; | |
2545 | else { | |
2546 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
2547 | case GC_DISPLAY_CLOCK_333_MHZ: | |
2548 | return 333000; | |
2549 | default: | |
2550 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
2551 | return 190000; | |
79e53945 | 2552 | } |
e70236a8 JB |
2553 | } |
2554 | } | |
2555 | ||
2556 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
2557 | { | |
2558 | return 266000; | |
2559 | } | |
2560 | ||
2561 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
2562 | { | |
2563 | u16 hpllcc = 0; | |
2564 | /* Assume that the hardware is in the high speed state. This | |
2565 | * should be the default. | |
2566 | */ | |
2567 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
2568 | case GC_CLOCK_133_200: | |
2569 | case GC_CLOCK_100_200: | |
2570 | return 200000; | |
2571 | case GC_CLOCK_166_250: | |
2572 | return 250000; | |
2573 | case GC_CLOCK_100_133: | |
79e53945 | 2574 | return 133000; |
e70236a8 | 2575 | } |
79e53945 | 2576 | |
e70236a8 JB |
2577 | /* Shouldn't happen */ |
2578 | return 0; | |
2579 | } | |
79e53945 | 2580 | |
e70236a8 JB |
2581 | static int i830_get_display_clock_speed(struct drm_device *dev) |
2582 | { | |
2583 | return 133000; | |
79e53945 JB |
2584 | } |
2585 | ||
79e53945 JB |
2586 | /** |
2587 | * Return the pipe currently connected to the panel fitter, | |
2588 | * or -1 if the panel fitter is not present or not in use | |
2589 | */ | |
02e792fb | 2590 | int intel_panel_fitter_pipe (struct drm_device *dev) |
79e53945 JB |
2591 | { |
2592 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2593 | u32 pfit_control; | |
2594 | ||
2595 | /* i830 doesn't have a panel fitter */ | |
2596 | if (IS_I830(dev)) | |
2597 | return -1; | |
2598 | ||
2599 | pfit_control = I915_READ(PFIT_CONTROL); | |
2600 | ||
2601 | /* See if the panel fitter is in use */ | |
2602 | if ((pfit_control & PFIT_ENABLE) == 0) | |
2603 | return -1; | |
2604 | ||
2605 | /* 965 can place panel fitter on either pipe */ | |
2606 | if (IS_I965G(dev)) | |
2607 | return (pfit_control >> 29) & 0x3; | |
2608 | ||
2609 | /* older chips can only use pipe 1 */ | |
2610 | return 1; | |
2611 | } | |
2612 | ||
2c07245f ZW |
2613 | struct fdi_m_n { |
2614 | u32 tu; | |
2615 | u32 gmch_m; | |
2616 | u32 gmch_n; | |
2617 | u32 link_m; | |
2618 | u32 link_n; | |
2619 | }; | |
2620 | ||
2621 | static void | |
2622 | fdi_reduce_ratio(u32 *num, u32 *den) | |
2623 | { | |
2624 | while (*num > 0xffffff || *den > 0xffffff) { | |
2625 | *num >>= 1; | |
2626 | *den >>= 1; | |
2627 | } | |
2628 | } | |
2629 | ||
2630 | #define DATA_N 0x800000 | |
2631 | #define LINK_N 0x80000 | |
2632 | ||
2633 | static void | |
f2b115e6 AJ |
2634 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
2635 | int link_clock, struct fdi_m_n *m_n) | |
2c07245f ZW |
2636 | { |
2637 | u64 temp; | |
2638 | ||
2639 | m_n->tu = 64; /* default size */ | |
2640 | ||
2641 | temp = (u64) DATA_N * pixel_clock; | |
2642 | temp = div_u64(temp, link_clock); | |
58a27471 ZW |
2643 | m_n->gmch_m = div_u64(temp * bits_per_pixel, nlanes); |
2644 | m_n->gmch_m >>= 3; /* convert to bytes_per_pixel */ | |
2c07245f ZW |
2645 | m_n->gmch_n = DATA_N; |
2646 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); | |
2647 | ||
2648 | temp = (u64) LINK_N * pixel_clock; | |
2649 | m_n->link_m = div_u64(temp, link_clock); | |
2650 | m_n->link_n = LINK_N; | |
2651 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); | |
2652 | } | |
2653 | ||
2654 | ||
7662c8bd SL |
2655 | struct intel_watermark_params { |
2656 | unsigned long fifo_size; | |
2657 | unsigned long max_wm; | |
2658 | unsigned long default_wm; | |
2659 | unsigned long guard_size; | |
2660 | unsigned long cacheline_size; | |
2661 | }; | |
2662 | ||
f2b115e6 AJ |
2663 | /* Pineview has different values for various configs */ |
2664 | static struct intel_watermark_params pineview_display_wm = { | |
2665 | PINEVIEW_DISPLAY_FIFO, | |
2666 | PINEVIEW_MAX_WM, | |
2667 | PINEVIEW_DFT_WM, | |
2668 | PINEVIEW_GUARD_WM, | |
2669 | PINEVIEW_FIFO_LINE_SIZE | |
7662c8bd | 2670 | }; |
f2b115e6 AJ |
2671 | static struct intel_watermark_params pineview_display_hplloff_wm = { |
2672 | PINEVIEW_DISPLAY_FIFO, | |
2673 | PINEVIEW_MAX_WM, | |
2674 | PINEVIEW_DFT_HPLLOFF_WM, | |
2675 | PINEVIEW_GUARD_WM, | |
2676 | PINEVIEW_FIFO_LINE_SIZE | |
7662c8bd | 2677 | }; |
f2b115e6 AJ |
2678 | static struct intel_watermark_params pineview_cursor_wm = { |
2679 | PINEVIEW_CURSOR_FIFO, | |
2680 | PINEVIEW_CURSOR_MAX_WM, | |
2681 | PINEVIEW_CURSOR_DFT_WM, | |
2682 | PINEVIEW_CURSOR_GUARD_WM, | |
2683 | PINEVIEW_FIFO_LINE_SIZE, | |
7662c8bd | 2684 | }; |
f2b115e6 AJ |
2685 | static struct intel_watermark_params pineview_cursor_hplloff_wm = { |
2686 | PINEVIEW_CURSOR_FIFO, | |
2687 | PINEVIEW_CURSOR_MAX_WM, | |
2688 | PINEVIEW_CURSOR_DFT_WM, | |
2689 | PINEVIEW_CURSOR_GUARD_WM, | |
2690 | PINEVIEW_FIFO_LINE_SIZE | |
7662c8bd | 2691 | }; |
0e442c60 JB |
2692 | static struct intel_watermark_params g4x_wm_info = { |
2693 | G4X_FIFO_SIZE, | |
2694 | G4X_MAX_WM, | |
2695 | G4X_MAX_WM, | |
2696 | 2, | |
2697 | G4X_FIFO_LINE_SIZE, | |
2698 | }; | |
4fe5e611 ZY |
2699 | static struct intel_watermark_params g4x_cursor_wm_info = { |
2700 | I965_CURSOR_FIFO, | |
2701 | I965_CURSOR_MAX_WM, | |
2702 | I965_CURSOR_DFT_WM, | |
2703 | 2, | |
2704 | G4X_FIFO_LINE_SIZE, | |
2705 | }; | |
2706 | static struct intel_watermark_params i965_cursor_wm_info = { | |
2707 | I965_CURSOR_FIFO, | |
2708 | I965_CURSOR_MAX_WM, | |
2709 | I965_CURSOR_DFT_WM, | |
2710 | 2, | |
2711 | I915_FIFO_LINE_SIZE, | |
2712 | }; | |
7662c8bd | 2713 | static struct intel_watermark_params i945_wm_info = { |
dff33cfc | 2714 | I945_FIFO_SIZE, |
7662c8bd SL |
2715 | I915_MAX_WM, |
2716 | 1, | |
dff33cfc JB |
2717 | 2, |
2718 | I915_FIFO_LINE_SIZE | |
7662c8bd SL |
2719 | }; |
2720 | static struct intel_watermark_params i915_wm_info = { | |
dff33cfc | 2721 | I915_FIFO_SIZE, |
7662c8bd SL |
2722 | I915_MAX_WM, |
2723 | 1, | |
dff33cfc | 2724 | 2, |
7662c8bd SL |
2725 | I915_FIFO_LINE_SIZE |
2726 | }; | |
2727 | static struct intel_watermark_params i855_wm_info = { | |
2728 | I855GM_FIFO_SIZE, | |
2729 | I915_MAX_WM, | |
2730 | 1, | |
dff33cfc | 2731 | 2, |
7662c8bd SL |
2732 | I830_FIFO_LINE_SIZE |
2733 | }; | |
2734 | static struct intel_watermark_params i830_wm_info = { | |
2735 | I830_FIFO_SIZE, | |
2736 | I915_MAX_WM, | |
2737 | 1, | |
dff33cfc | 2738 | 2, |
7662c8bd SL |
2739 | I830_FIFO_LINE_SIZE |
2740 | }; | |
2741 | ||
7f8a8569 ZW |
2742 | static struct intel_watermark_params ironlake_display_wm_info = { |
2743 | ILK_DISPLAY_FIFO, | |
2744 | ILK_DISPLAY_MAXWM, | |
2745 | ILK_DISPLAY_DFTWM, | |
2746 | 2, | |
2747 | ILK_FIFO_LINE_SIZE | |
2748 | }; | |
2749 | ||
c936f44d ZY |
2750 | static struct intel_watermark_params ironlake_cursor_wm_info = { |
2751 | ILK_CURSOR_FIFO, | |
2752 | ILK_CURSOR_MAXWM, | |
2753 | ILK_CURSOR_DFTWM, | |
2754 | 2, | |
2755 | ILK_FIFO_LINE_SIZE | |
2756 | }; | |
2757 | ||
7f8a8569 ZW |
2758 | static struct intel_watermark_params ironlake_display_srwm_info = { |
2759 | ILK_DISPLAY_SR_FIFO, | |
2760 | ILK_DISPLAY_MAX_SRWM, | |
2761 | ILK_DISPLAY_DFT_SRWM, | |
2762 | 2, | |
2763 | ILK_FIFO_LINE_SIZE | |
2764 | }; | |
2765 | ||
2766 | static struct intel_watermark_params ironlake_cursor_srwm_info = { | |
2767 | ILK_CURSOR_SR_FIFO, | |
2768 | ILK_CURSOR_MAX_SRWM, | |
2769 | ILK_CURSOR_DFT_SRWM, | |
2770 | 2, | |
2771 | ILK_FIFO_LINE_SIZE | |
2772 | }; | |
2773 | ||
dff33cfc JB |
2774 | /** |
2775 | * intel_calculate_wm - calculate watermark level | |
2776 | * @clock_in_khz: pixel clock | |
2777 | * @wm: chip FIFO params | |
2778 | * @pixel_size: display pixel size | |
2779 | * @latency_ns: memory latency for the platform | |
2780 | * | |
2781 | * Calculate the watermark level (the level at which the display plane will | |
2782 | * start fetching from memory again). Each chip has a different display | |
2783 | * FIFO size and allocation, so the caller needs to figure that out and pass | |
2784 | * in the correct intel_watermark_params structure. | |
2785 | * | |
2786 | * As the pixel clock runs, the FIFO will be drained at a rate that depends | |
2787 | * on the pixel size. When it reaches the watermark level, it'll start | |
2788 | * fetching FIFO line sized based chunks from memory until the FIFO fills | |
2789 | * past the watermark point. If the FIFO drains completely, a FIFO underrun | |
2790 | * will occur, and a display engine hang could result. | |
2791 | */ | |
7662c8bd SL |
2792 | static unsigned long intel_calculate_wm(unsigned long clock_in_khz, |
2793 | struct intel_watermark_params *wm, | |
2794 | int pixel_size, | |
2795 | unsigned long latency_ns) | |
2796 | { | |
390c4dd4 | 2797 | long entries_required, wm_size; |
dff33cfc | 2798 | |
d660467c JB |
2799 | /* |
2800 | * Note: we need to make sure we don't overflow for various clock & | |
2801 | * latency values. | |
2802 | * clocks go from a few thousand to several hundred thousand. | |
2803 | * latency is usually a few thousand | |
2804 | */ | |
2805 | entries_required = ((clock_in_khz / 1000) * pixel_size * latency_ns) / | |
2806 | 1000; | |
8de9b311 | 2807 | entries_required = DIV_ROUND_UP(entries_required, wm->cacheline_size); |
7662c8bd | 2808 | |
28c97730 | 2809 | DRM_DEBUG_KMS("FIFO entries required for mode: %d\n", entries_required); |
dff33cfc JB |
2810 | |
2811 | wm_size = wm->fifo_size - (entries_required + wm->guard_size); | |
2812 | ||
28c97730 | 2813 | DRM_DEBUG_KMS("FIFO watermark level: %d\n", wm_size); |
7662c8bd | 2814 | |
390c4dd4 JB |
2815 | /* Don't promote wm_size to unsigned... */ |
2816 | if (wm_size > (long)wm->max_wm) | |
7662c8bd | 2817 | wm_size = wm->max_wm; |
b9421ae8 | 2818 | if (wm_size <= 0) { |
7662c8bd | 2819 | wm_size = wm->default_wm; |
b9421ae8 CW |
2820 | DRM_ERROR("Insufficient FIFO for plane, expect flickering:" |
2821 | " entries required = %ld, available = %lu.\n", | |
2822 | entries_required + wm->guard_size, | |
2823 | wm->fifo_size); | |
2824 | } | |
2825 | ||
7662c8bd SL |
2826 | return wm_size; |
2827 | } | |
2828 | ||
2829 | struct cxsr_latency { | |
2830 | int is_desktop; | |
95534263 | 2831 | int is_ddr3; |
7662c8bd SL |
2832 | unsigned long fsb_freq; |
2833 | unsigned long mem_freq; | |
2834 | unsigned long display_sr; | |
2835 | unsigned long display_hpll_disable; | |
2836 | unsigned long cursor_sr; | |
2837 | unsigned long cursor_hpll_disable; | |
2838 | }; | |
2839 | ||
403c89ff | 2840 | static const struct cxsr_latency cxsr_latency_table[] = { |
95534263 LP |
2841 | {1, 0, 800, 400, 3382, 33382, 3983, 33983}, /* DDR2-400 SC */ |
2842 | {1, 0, 800, 667, 3354, 33354, 3807, 33807}, /* DDR2-667 SC */ | |
2843 | {1, 0, 800, 800, 3347, 33347, 3763, 33763}, /* DDR2-800 SC */ | |
2844 | {1, 1, 800, 667, 6420, 36420, 6873, 36873}, /* DDR3-667 SC */ | |
2845 | {1, 1, 800, 800, 5902, 35902, 6318, 36318}, /* DDR3-800 SC */ | |
2846 | ||
2847 | {1, 0, 667, 400, 3400, 33400, 4021, 34021}, /* DDR2-400 SC */ | |
2848 | {1, 0, 667, 667, 3372, 33372, 3845, 33845}, /* DDR2-667 SC */ | |
2849 | {1, 0, 667, 800, 3386, 33386, 3822, 33822}, /* DDR2-800 SC */ | |
2850 | {1, 1, 667, 667, 6438, 36438, 6911, 36911}, /* DDR3-667 SC */ | |
2851 | {1, 1, 667, 800, 5941, 35941, 6377, 36377}, /* DDR3-800 SC */ | |
2852 | ||
2853 | {1, 0, 400, 400, 3472, 33472, 4173, 34173}, /* DDR2-400 SC */ | |
2854 | {1, 0, 400, 667, 3443, 33443, 3996, 33996}, /* DDR2-667 SC */ | |
2855 | {1, 0, 400, 800, 3430, 33430, 3946, 33946}, /* DDR2-800 SC */ | |
2856 | {1, 1, 400, 667, 6509, 36509, 7062, 37062}, /* DDR3-667 SC */ | |
2857 | {1, 1, 400, 800, 5985, 35985, 6501, 36501}, /* DDR3-800 SC */ | |
2858 | ||
2859 | {0, 0, 800, 400, 3438, 33438, 4065, 34065}, /* DDR2-400 SC */ | |
2860 | {0, 0, 800, 667, 3410, 33410, 3889, 33889}, /* DDR2-667 SC */ | |
2861 | {0, 0, 800, 800, 3403, 33403, 3845, 33845}, /* DDR2-800 SC */ | |
2862 | {0, 1, 800, 667, 6476, 36476, 6955, 36955}, /* DDR3-667 SC */ | |
2863 | {0, 1, 800, 800, 5958, 35958, 6400, 36400}, /* DDR3-800 SC */ | |
2864 | ||
2865 | {0, 0, 667, 400, 3456, 33456, 4103, 34106}, /* DDR2-400 SC */ | |
2866 | {0, 0, 667, 667, 3428, 33428, 3927, 33927}, /* DDR2-667 SC */ | |
2867 | {0, 0, 667, 800, 3443, 33443, 3905, 33905}, /* DDR2-800 SC */ | |
2868 | {0, 1, 667, 667, 6494, 36494, 6993, 36993}, /* DDR3-667 SC */ | |
2869 | {0, 1, 667, 800, 5998, 35998, 6460, 36460}, /* DDR3-800 SC */ | |
2870 | ||
2871 | {0, 0, 400, 400, 3528, 33528, 4255, 34255}, /* DDR2-400 SC */ | |
2872 | {0, 0, 400, 667, 3500, 33500, 4079, 34079}, /* DDR2-667 SC */ | |
2873 | {0, 0, 400, 800, 3487, 33487, 4029, 34029}, /* DDR2-800 SC */ | |
2874 | {0, 1, 400, 667, 6566, 36566, 7145, 37145}, /* DDR3-667 SC */ | |
2875 | {0, 1, 400, 800, 6042, 36042, 6584, 36584}, /* DDR3-800 SC */ | |
7662c8bd SL |
2876 | }; |
2877 | ||
403c89ff CW |
2878 | static const struct cxsr_latency *intel_get_cxsr_latency(int is_desktop, |
2879 | int is_ddr3, | |
2880 | int fsb, | |
2881 | int mem) | |
7662c8bd | 2882 | { |
403c89ff | 2883 | const struct cxsr_latency *latency; |
7662c8bd | 2884 | int i; |
7662c8bd SL |
2885 | |
2886 | if (fsb == 0 || mem == 0) | |
2887 | return NULL; | |
2888 | ||
2889 | for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) { | |
2890 | latency = &cxsr_latency_table[i]; | |
2891 | if (is_desktop == latency->is_desktop && | |
95534263 | 2892 | is_ddr3 == latency->is_ddr3 && |
decbbcda JSR |
2893 | fsb == latency->fsb_freq && mem == latency->mem_freq) |
2894 | return latency; | |
7662c8bd | 2895 | } |
decbbcda | 2896 | |
28c97730 | 2897 | DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); |
decbbcda JSR |
2898 | |
2899 | return NULL; | |
7662c8bd SL |
2900 | } |
2901 | ||
f2b115e6 | 2902 | static void pineview_disable_cxsr(struct drm_device *dev) |
7662c8bd SL |
2903 | { |
2904 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7662c8bd SL |
2905 | |
2906 | /* deactivate cxsr */ | |
3e33d94d | 2907 | I915_WRITE(DSPFW3, I915_READ(DSPFW3) & ~PINEVIEW_SELF_REFRESH_EN); |
7662c8bd SL |
2908 | } |
2909 | ||
bcc24fb4 JB |
2910 | /* |
2911 | * Latency for FIFO fetches is dependent on several factors: | |
2912 | * - memory configuration (speed, channels) | |
2913 | * - chipset | |
2914 | * - current MCH state | |
2915 | * It can be fairly high in some situations, so here we assume a fairly | |
2916 | * pessimal value. It's a tradeoff between extra memory fetches (if we | |
2917 | * set this value too high, the FIFO will fetch frequently to stay full) | |
2918 | * and power consumption (set it too low to save power and we might see | |
2919 | * FIFO underruns and display "flicker"). | |
2920 | * | |
2921 | * A value of 5us seems to be a good balance; safe for very low end | |
2922 | * platforms but not overly aggressive on lower latency configs. | |
2923 | */ | |
69e302a9 | 2924 | static const int latency_ns = 5000; |
7662c8bd | 2925 | |
e70236a8 | 2926 | static int i9xx_get_fifo_size(struct drm_device *dev, int plane) |
dff33cfc JB |
2927 | { |
2928 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2929 | uint32_t dsparb = I915_READ(DSPARB); | |
2930 | int size; | |
2931 | ||
8de9b311 CW |
2932 | size = dsparb & 0x7f; |
2933 | if (plane) | |
2934 | size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) - size; | |
dff33cfc | 2935 | |
28c97730 ZY |
2936 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
2937 | plane ? "B" : "A", size); | |
dff33cfc JB |
2938 | |
2939 | return size; | |
2940 | } | |
7662c8bd | 2941 | |
e70236a8 JB |
2942 | static int i85x_get_fifo_size(struct drm_device *dev, int plane) |
2943 | { | |
2944 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2945 | uint32_t dsparb = I915_READ(DSPARB); | |
2946 | int size; | |
2947 | ||
8de9b311 CW |
2948 | size = dsparb & 0x1ff; |
2949 | if (plane) | |
2950 | size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) - size; | |
e70236a8 | 2951 | size >>= 1; /* Convert to cachelines */ |
dff33cfc | 2952 | |
28c97730 ZY |
2953 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
2954 | plane ? "B" : "A", size); | |
dff33cfc JB |
2955 | |
2956 | return size; | |
2957 | } | |
7662c8bd | 2958 | |
e70236a8 JB |
2959 | static int i845_get_fifo_size(struct drm_device *dev, int plane) |
2960 | { | |
2961 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2962 | uint32_t dsparb = I915_READ(DSPARB); | |
2963 | int size; | |
2964 | ||
2965 | size = dsparb & 0x7f; | |
2966 | size >>= 2; /* Convert to cachelines */ | |
2967 | ||
28c97730 ZY |
2968 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
2969 | plane ? "B" : "A", | |
e70236a8 JB |
2970 | size); |
2971 | ||
2972 | return size; | |
2973 | } | |
2974 | ||
2975 | static int i830_get_fifo_size(struct drm_device *dev, int plane) | |
2976 | { | |
2977 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2978 | uint32_t dsparb = I915_READ(DSPARB); | |
2979 | int size; | |
2980 | ||
2981 | size = dsparb & 0x7f; | |
2982 | size >>= 1; /* Convert to cachelines */ | |
2983 | ||
28c97730 ZY |
2984 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
2985 | plane ? "B" : "A", size); | |
e70236a8 JB |
2986 | |
2987 | return size; | |
2988 | } | |
2989 | ||
d4294342 | 2990 | static void pineview_update_wm(struct drm_device *dev, int planea_clock, |
fa143215 ZY |
2991 | int planeb_clock, int sr_hdisplay, int unused, |
2992 | int pixel_size) | |
d4294342 ZY |
2993 | { |
2994 | struct drm_i915_private *dev_priv = dev->dev_private; | |
403c89ff | 2995 | const struct cxsr_latency *latency; |
d4294342 ZY |
2996 | u32 reg; |
2997 | unsigned long wm; | |
d4294342 ZY |
2998 | int sr_clock; |
2999 | ||
403c89ff | 3000 | latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->is_ddr3, |
95534263 | 3001 | dev_priv->fsb_freq, dev_priv->mem_freq); |
d4294342 ZY |
3002 | if (!latency) { |
3003 | DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); | |
3004 | pineview_disable_cxsr(dev); | |
3005 | return; | |
3006 | } | |
3007 | ||
3008 | if (!planea_clock || !planeb_clock) { | |
3009 | sr_clock = planea_clock ? planea_clock : planeb_clock; | |
3010 | ||
3011 | /* Display SR */ | |
3012 | wm = intel_calculate_wm(sr_clock, &pineview_display_wm, | |
3013 | pixel_size, latency->display_sr); | |
3014 | reg = I915_READ(DSPFW1); | |
3015 | reg &= ~DSPFW_SR_MASK; | |
3016 | reg |= wm << DSPFW_SR_SHIFT; | |
3017 | I915_WRITE(DSPFW1, reg); | |
3018 | DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg); | |
3019 | ||
3020 | /* cursor SR */ | |
3021 | wm = intel_calculate_wm(sr_clock, &pineview_cursor_wm, | |
3022 | pixel_size, latency->cursor_sr); | |
3023 | reg = I915_READ(DSPFW3); | |
3024 | reg &= ~DSPFW_CURSOR_SR_MASK; | |
3025 | reg |= (wm & 0x3f) << DSPFW_CURSOR_SR_SHIFT; | |
3026 | I915_WRITE(DSPFW3, reg); | |
3027 | ||
3028 | /* Display HPLL off SR */ | |
3029 | wm = intel_calculate_wm(sr_clock, &pineview_display_hplloff_wm, | |
3030 | pixel_size, latency->display_hpll_disable); | |
3031 | reg = I915_READ(DSPFW3); | |
3032 | reg &= ~DSPFW_HPLL_SR_MASK; | |
3033 | reg |= wm & DSPFW_HPLL_SR_MASK; | |
3034 | I915_WRITE(DSPFW3, reg); | |
3035 | ||
3036 | /* cursor HPLL off SR */ | |
3037 | wm = intel_calculate_wm(sr_clock, &pineview_cursor_hplloff_wm, | |
3038 | pixel_size, latency->cursor_hpll_disable); | |
3039 | reg = I915_READ(DSPFW3); | |
3040 | reg &= ~DSPFW_HPLL_CURSOR_MASK; | |
3041 | reg |= (wm & 0x3f) << DSPFW_HPLL_CURSOR_SHIFT; | |
3042 | I915_WRITE(DSPFW3, reg); | |
3043 | DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg); | |
3044 | ||
3045 | /* activate cxsr */ | |
3e33d94d CW |
3046 | I915_WRITE(DSPFW3, |
3047 | I915_READ(DSPFW3) | PINEVIEW_SELF_REFRESH_EN); | |
d4294342 ZY |
3048 | DRM_DEBUG_KMS("Self-refresh is enabled\n"); |
3049 | } else { | |
3050 | pineview_disable_cxsr(dev); | |
3051 | DRM_DEBUG_KMS("Self-refresh is disabled\n"); | |
3052 | } | |
3053 | } | |
3054 | ||
0e442c60 | 3055 | static void g4x_update_wm(struct drm_device *dev, int planea_clock, |
fa143215 ZY |
3056 | int planeb_clock, int sr_hdisplay, int sr_htotal, |
3057 | int pixel_size) | |
652c393a JB |
3058 | { |
3059 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0e442c60 JB |
3060 | int total_size, cacheline_size; |
3061 | int planea_wm, planeb_wm, cursora_wm, cursorb_wm, cursor_sr; | |
3062 | struct intel_watermark_params planea_params, planeb_params; | |
3063 | unsigned long line_time_us; | |
3064 | int sr_clock, sr_entries = 0, entries_required; | |
652c393a | 3065 | |
0e442c60 JB |
3066 | /* Create copies of the base settings for each pipe */ |
3067 | planea_params = planeb_params = g4x_wm_info; | |
3068 | ||
3069 | /* Grab a couple of global values before we overwrite them */ | |
3070 | total_size = planea_params.fifo_size; | |
3071 | cacheline_size = planea_params.cacheline_size; | |
3072 | ||
3073 | /* | |
3074 | * Note: we need to make sure we don't overflow for various clock & | |
3075 | * latency values. | |
3076 | * clocks go from a few thousand to several hundred thousand. | |
3077 | * latency is usually a few thousand | |
3078 | */ | |
3079 | entries_required = ((planea_clock / 1000) * pixel_size * latency_ns) / | |
3080 | 1000; | |
8de9b311 | 3081 | entries_required = DIV_ROUND_UP(entries_required, G4X_FIFO_LINE_SIZE); |
0e442c60 JB |
3082 | planea_wm = entries_required + planea_params.guard_size; |
3083 | ||
3084 | entries_required = ((planeb_clock / 1000) * pixel_size * latency_ns) / | |
3085 | 1000; | |
8de9b311 | 3086 | entries_required = DIV_ROUND_UP(entries_required, G4X_FIFO_LINE_SIZE); |
0e442c60 JB |
3087 | planeb_wm = entries_required + planeb_params.guard_size; |
3088 | ||
3089 | cursora_wm = cursorb_wm = 16; | |
3090 | cursor_sr = 32; | |
3091 | ||
3092 | DRM_DEBUG("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm); | |
3093 | ||
3094 | /* Calc sr entries for one plane configs */ | |
3095 | if (sr_hdisplay && (!planea_clock || !planeb_clock)) { | |
3096 | /* self-refresh has much higher latency */ | |
69e302a9 | 3097 | static const int sr_latency_ns = 12000; |
0e442c60 JB |
3098 | |
3099 | sr_clock = planea_clock ? planea_clock : planeb_clock; | |
fa143215 | 3100 | line_time_us = ((sr_htotal * 1000) / sr_clock); |
0e442c60 JB |
3101 | |
3102 | /* Use ns/us then divide to preserve precision */ | |
fa143215 ZY |
3103 | sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
3104 | pixel_size * sr_hdisplay; | |
8de9b311 | 3105 | sr_entries = DIV_ROUND_UP(sr_entries, cacheline_size); |
4fe5e611 ZY |
3106 | |
3107 | entries_required = (((sr_latency_ns / line_time_us) + | |
3108 | 1000) / 1000) * pixel_size * 64; | |
8de9b311 CW |
3109 | entries_required = DIV_ROUND_UP(entries_required, |
3110 | g4x_cursor_wm_info.cacheline_size); | |
4fe5e611 ZY |
3111 | cursor_sr = entries_required + g4x_cursor_wm_info.guard_size; |
3112 | ||
3113 | if (cursor_sr > g4x_cursor_wm_info.max_wm) | |
3114 | cursor_sr = g4x_cursor_wm_info.max_wm; | |
3115 | DRM_DEBUG_KMS("self-refresh watermark: display plane %d " | |
3116 | "cursor %d\n", sr_entries, cursor_sr); | |
3117 | ||
0e442c60 | 3118 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); |
33c5fd12 DJ |
3119 | } else { |
3120 | /* Turn off self refresh if both pipes are enabled */ | |
3121 | I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF) | |
3122 | & ~FW_BLC_SELF_EN); | |
0e442c60 JB |
3123 | } |
3124 | ||
3125 | DRM_DEBUG("Setting FIFO watermarks - A: %d, B: %d, SR %d\n", | |
3126 | planea_wm, planeb_wm, sr_entries); | |
3127 | ||
3128 | planea_wm &= 0x3f; | |
3129 | planeb_wm &= 0x3f; | |
3130 | ||
3131 | I915_WRITE(DSPFW1, (sr_entries << DSPFW_SR_SHIFT) | | |
3132 | (cursorb_wm << DSPFW_CURSORB_SHIFT) | | |
3133 | (planeb_wm << DSPFW_PLANEB_SHIFT) | planea_wm); | |
3134 | I915_WRITE(DSPFW2, (I915_READ(DSPFW2) & DSPFW_CURSORA_MASK) | | |
3135 | (cursora_wm << DSPFW_CURSORA_SHIFT)); | |
3136 | /* HPLL off in SR has some issues on G4x... disable it */ | |
3137 | I915_WRITE(DSPFW3, (I915_READ(DSPFW3) & ~DSPFW_HPLL_SR_EN) | | |
3138 | (cursor_sr << DSPFW_CURSOR_SR_SHIFT)); | |
652c393a JB |
3139 | } |
3140 | ||
1dc7546d | 3141 | static void i965_update_wm(struct drm_device *dev, int planea_clock, |
fa143215 ZY |
3142 | int planeb_clock, int sr_hdisplay, int sr_htotal, |
3143 | int pixel_size) | |
7662c8bd SL |
3144 | { |
3145 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1dc7546d JB |
3146 | unsigned long line_time_us; |
3147 | int sr_clock, sr_entries, srwm = 1; | |
4fe5e611 | 3148 | int cursor_sr = 16; |
1dc7546d JB |
3149 | |
3150 | /* Calc sr entries for one plane configs */ | |
3151 | if (sr_hdisplay && (!planea_clock || !planeb_clock)) { | |
3152 | /* self-refresh has much higher latency */ | |
69e302a9 | 3153 | static const int sr_latency_ns = 12000; |
1dc7546d JB |
3154 | |
3155 | sr_clock = planea_clock ? planea_clock : planeb_clock; | |
fa143215 | 3156 | line_time_us = ((sr_htotal * 1000) / sr_clock); |
1dc7546d JB |
3157 | |
3158 | /* Use ns/us then divide to preserve precision */ | |
fa143215 ZY |
3159 | sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
3160 | pixel_size * sr_hdisplay; | |
8de9b311 | 3161 | sr_entries = DIV_ROUND_UP(sr_entries, I915_FIFO_LINE_SIZE); |
1dc7546d | 3162 | DRM_DEBUG("self-refresh entries: %d\n", sr_entries); |
1b07e04e | 3163 | srwm = I965_FIFO_SIZE - sr_entries; |
1dc7546d JB |
3164 | if (srwm < 0) |
3165 | srwm = 1; | |
1b07e04e | 3166 | srwm &= 0x1ff; |
4fe5e611 ZY |
3167 | |
3168 | sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * | |
3169 | pixel_size * 64; | |
8de9b311 CW |
3170 | sr_entries = DIV_ROUND_UP(sr_entries, |
3171 | i965_cursor_wm_info.cacheline_size); | |
4fe5e611 ZY |
3172 | cursor_sr = i965_cursor_wm_info.fifo_size - |
3173 | (sr_entries + i965_cursor_wm_info.guard_size); | |
3174 | ||
3175 | if (cursor_sr > i965_cursor_wm_info.max_wm) | |
3176 | cursor_sr = i965_cursor_wm_info.max_wm; | |
3177 | ||
3178 | DRM_DEBUG_KMS("self-refresh watermark: display plane %d " | |
3179 | "cursor %d\n", srwm, cursor_sr); | |
3180 | ||
adcdbc66 JB |
3181 | if (IS_I965GM(dev)) |
3182 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); | |
33c5fd12 DJ |
3183 | } else { |
3184 | /* Turn off self refresh if both pipes are enabled */ | |
adcdbc66 JB |
3185 | if (IS_I965GM(dev)) |
3186 | I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF) | |
3187 | & ~FW_BLC_SELF_EN); | |
1dc7546d | 3188 | } |
7662c8bd | 3189 | |
1dc7546d JB |
3190 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR %d\n", |
3191 | srwm); | |
7662c8bd SL |
3192 | |
3193 | /* 965 has limitations... */ | |
1dc7546d JB |
3194 | I915_WRITE(DSPFW1, (srwm << DSPFW_SR_SHIFT) | (8 << 16) | (8 << 8) | |
3195 | (8 << 0)); | |
7662c8bd | 3196 | I915_WRITE(DSPFW2, (8 << 8) | (8 << 0)); |
4fe5e611 ZY |
3197 | /* update cursor SR watermark */ |
3198 | I915_WRITE(DSPFW3, (cursor_sr << DSPFW_CURSOR_SR_SHIFT)); | |
7662c8bd SL |
3199 | } |
3200 | ||
3201 | static void i9xx_update_wm(struct drm_device *dev, int planea_clock, | |
fa143215 ZY |
3202 | int planeb_clock, int sr_hdisplay, int sr_htotal, |
3203 | int pixel_size) | |
7662c8bd SL |
3204 | { |
3205 | struct drm_i915_private *dev_priv = dev->dev_private; | |
dff33cfc JB |
3206 | uint32_t fwater_lo; |
3207 | uint32_t fwater_hi; | |
3208 | int total_size, cacheline_size, cwm, srwm = 1; | |
3209 | int planea_wm, planeb_wm; | |
3210 | struct intel_watermark_params planea_params, planeb_params; | |
7662c8bd SL |
3211 | unsigned long line_time_us; |
3212 | int sr_clock, sr_entries = 0; | |
3213 | ||
dff33cfc | 3214 | /* Create copies of the base settings for each pipe */ |
7662c8bd | 3215 | if (IS_I965GM(dev) || IS_I945GM(dev)) |
dff33cfc | 3216 | planea_params = planeb_params = i945_wm_info; |
7662c8bd | 3217 | else if (IS_I9XX(dev)) |
dff33cfc | 3218 | planea_params = planeb_params = i915_wm_info; |
7662c8bd | 3219 | else |
dff33cfc | 3220 | planea_params = planeb_params = i855_wm_info; |
7662c8bd | 3221 | |
dff33cfc JB |
3222 | /* Grab a couple of global values before we overwrite them */ |
3223 | total_size = planea_params.fifo_size; | |
3224 | cacheline_size = planea_params.cacheline_size; | |
7662c8bd | 3225 | |
dff33cfc | 3226 | /* Update per-plane FIFO sizes */ |
e70236a8 JB |
3227 | planea_params.fifo_size = dev_priv->display.get_fifo_size(dev, 0); |
3228 | planeb_params.fifo_size = dev_priv->display.get_fifo_size(dev, 1); | |
7662c8bd | 3229 | |
dff33cfc JB |
3230 | planea_wm = intel_calculate_wm(planea_clock, &planea_params, |
3231 | pixel_size, latency_ns); | |
3232 | planeb_wm = intel_calculate_wm(planeb_clock, &planeb_params, | |
3233 | pixel_size, latency_ns); | |
28c97730 | 3234 | DRM_DEBUG_KMS("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm); |
7662c8bd SL |
3235 | |
3236 | /* | |
3237 | * Overlay gets an aggressive default since video jitter is bad. | |
3238 | */ | |
3239 | cwm = 2; | |
3240 | ||
dff33cfc | 3241 | /* Calc sr entries for one plane configs */ |
652c393a JB |
3242 | if (HAS_FW_BLC(dev) && sr_hdisplay && |
3243 | (!planea_clock || !planeb_clock)) { | |
dff33cfc | 3244 | /* self-refresh has much higher latency */ |
69e302a9 | 3245 | static const int sr_latency_ns = 6000; |
dff33cfc | 3246 | |
7662c8bd | 3247 | sr_clock = planea_clock ? planea_clock : planeb_clock; |
fa143215 | 3248 | line_time_us = ((sr_htotal * 1000) / sr_clock); |
dff33cfc JB |
3249 | |
3250 | /* Use ns/us then divide to preserve precision */ | |
fa143215 ZY |
3251 | sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
3252 | pixel_size * sr_hdisplay; | |
8de9b311 | 3253 | sr_entries = DIV_ROUND_UP(sr_entries, cacheline_size); |
28c97730 | 3254 | DRM_DEBUG_KMS("self-refresh entries: %d\n", sr_entries); |
dff33cfc JB |
3255 | srwm = total_size - sr_entries; |
3256 | if (srwm < 0) | |
3257 | srwm = 1; | |
ee980b80 LP |
3258 | |
3259 | if (IS_I945G(dev) || IS_I945GM(dev)) | |
3260 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_FIFO_MASK | (srwm & 0xff)); | |
3261 | else if (IS_I915GM(dev)) { | |
3262 | /* 915M has a smaller SRWM field */ | |
3263 | I915_WRITE(FW_BLC_SELF, srwm & 0x3f); | |
3264 | I915_WRITE(INSTPM, I915_READ(INSTPM) | INSTPM_SELF_EN); | |
3265 | } | |
33c5fd12 DJ |
3266 | } else { |
3267 | /* Turn off self refresh if both pipes are enabled */ | |
ee980b80 LP |
3268 | if (IS_I945G(dev) || IS_I945GM(dev)) { |
3269 | I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF) | |
3270 | & ~FW_BLC_SELF_EN); | |
3271 | } else if (IS_I915GM(dev)) { | |
3272 | I915_WRITE(INSTPM, I915_READ(INSTPM) & ~INSTPM_SELF_EN); | |
3273 | } | |
7662c8bd SL |
3274 | } |
3275 | ||
28c97730 | 3276 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n", |
dff33cfc | 3277 | planea_wm, planeb_wm, cwm, srwm); |
7662c8bd | 3278 | |
dff33cfc JB |
3279 | fwater_lo = ((planeb_wm & 0x3f) << 16) | (planea_wm & 0x3f); |
3280 | fwater_hi = (cwm & 0x1f); | |
3281 | ||
3282 | /* Set request length to 8 cachelines per fetch */ | |
3283 | fwater_lo = fwater_lo | (1 << 24) | (1 << 8); | |
3284 | fwater_hi = fwater_hi | (1 << 8); | |
7662c8bd SL |
3285 | |
3286 | I915_WRITE(FW_BLC, fwater_lo); | |
3287 | I915_WRITE(FW_BLC2, fwater_hi); | |
7662c8bd SL |
3288 | } |
3289 | ||
e70236a8 | 3290 | static void i830_update_wm(struct drm_device *dev, int planea_clock, int unused, |
fa143215 | 3291 | int unused2, int unused3, int pixel_size) |
7662c8bd SL |
3292 | { |
3293 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f3601326 | 3294 | uint32_t fwater_lo = I915_READ(FW_BLC) & ~0xfff; |
dff33cfc | 3295 | int planea_wm; |
7662c8bd | 3296 | |
e70236a8 | 3297 | i830_wm_info.fifo_size = dev_priv->display.get_fifo_size(dev, 0); |
7662c8bd | 3298 | |
dff33cfc JB |
3299 | planea_wm = intel_calculate_wm(planea_clock, &i830_wm_info, |
3300 | pixel_size, latency_ns); | |
f3601326 JB |
3301 | fwater_lo |= (3<<8) | planea_wm; |
3302 | ||
28c97730 | 3303 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d\n", planea_wm); |
7662c8bd SL |
3304 | |
3305 | I915_WRITE(FW_BLC, fwater_lo); | |
3306 | } | |
3307 | ||
7f8a8569 | 3308 | #define ILK_LP0_PLANE_LATENCY 700 |
c936f44d | 3309 | #define ILK_LP0_CURSOR_LATENCY 1300 |
7f8a8569 ZW |
3310 | |
3311 | static void ironlake_update_wm(struct drm_device *dev, int planea_clock, | |
fa143215 ZY |
3312 | int planeb_clock, int sr_hdisplay, int sr_htotal, |
3313 | int pixel_size) | |
7f8a8569 ZW |
3314 | { |
3315 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3316 | int planea_wm, planeb_wm, cursora_wm, cursorb_wm; | |
3317 | int sr_wm, cursor_wm; | |
3318 | unsigned long line_time_us; | |
3319 | int sr_clock, entries_required; | |
3320 | u32 reg_value; | |
c936f44d ZY |
3321 | int line_count; |
3322 | int planea_htotal = 0, planeb_htotal = 0; | |
3323 | struct drm_crtc *crtc; | |
c936f44d ZY |
3324 | |
3325 | /* Need htotal for all active display plane */ | |
3326 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
debcaddc CW |
3327 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3328 | if (intel_crtc->dpms_mode == DRM_MODE_DPMS_ON) { | |
c936f44d ZY |
3329 | if (intel_crtc->plane == 0) |
3330 | planea_htotal = crtc->mode.htotal; | |
3331 | else | |
3332 | planeb_htotal = crtc->mode.htotal; | |
3333 | } | |
3334 | } | |
7f8a8569 ZW |
3335 | |
3336 | /* Calculate and update the watermark for plane A */ | |
3337 | if (planea_clock) { | |
3338 | entries_required = ((planea_clock / 1000) * pixel_size * | |
3339 | ILK_LP0_PLANE_LATENCY) / 1000; | |
3340 | entries_required = DIV_ROUND_UP(entries_required, | |
8de9b311 | 3341 | ironlake_display_wm_info.cacheline_size); |
7f8a8569 ZW |
3342 | planea_wm = entries_required + |
3343 | ironlake_display_wm_info.guard_size; | |
3344 | ||
3345 | if (planea_wm > (int)ironlake_display_wm_info.max_wm) | |
3346 | planea_wm = ironlake_display_wm_info.max_wm; | |
3347 | ||
c936f44d ZY |
3348 | /* Use the large buffer method to calculate cursor watermark */ |
3349 | line_time_us = (planea_htotal * 1000) / planea_clock; | |
3350 | ||
3351 | /* Use ns/us then divide to preserve precision */ | |
3352 | line_count = (ILK_LP0_CURSOR_LATENCY / line_time_us + 1000) / 1000; | |
3353 | ||
3354 | /* calculate the cursor watermark for cursor A */ | |
3355 | entries_required = line_count * 64 * pixel_size; | |
3356 | entries_required = DIV_ROUND_UP(entries_required, | |
3357 | ironlake_cursor_wm_info.cacheline_size); | |
3358 | cursora_wm = entries_required + ironlake_cursor_wm_info.guard_size; | |
3359 | if (cursora_wm > ironlake_cursor_wm_info.max_wm) | |
3360 | cursora_wm = ironlake_cursor_wm_info.max_wm; | |
3361 | ||
7f8a8569 ZW |
3362 | reg_value = I915_READ(WM0_PIPEA_ILK); |
3363 | reg_value &= ~(WM0_PIPE_PLANE_MASK | WM0_PIPE_CURSOR_MASK); | |
3364 | reg_value |= (planea_wm << WM0_PIPE_PLANE_SHIFT) | | |
3365 | (cursora_wm & WM0_PIPE_CURSOR_MASK); | |
3366 | I915_WRITE(WM0_PIPEA_ILK, reg_value); | |
3367 | DRM_DEBUG_KMS("FIFO watermarks For pipe A - plane %d, " | |
3368 | "cursor: %d\n", planea_wm, cursora_wm); | |
3369 | } | |
3370 | /* Calculate and update the watermark for plane B */ | |
3371 | if (planeb_clock) { | |
3372 | entries_required = ((planeb_clock / 1000) * pixel_size * | |
3373 | ILK_LP0_PLANE_LATENCY) / 1000; | |
3374 | entries_required = DIV_ROUND_UP(entries_required, | |
8de9b311 | 3375 | ironlake_display_wm_info.cacheline_size); |
7f8a8569 ZW |
3376 | planeb_wm = entries_required + |
3377 | ironlake_display_wm_info.guard_size; | |
3378 | ||
3379 | if (planeb_wm > (int)ironlake_display_wm_info.max_wm) | |
3380 | planeb_wm = ironlake_display_wm_info.max_wm; | |
3381 | ||
c936f44d ZY |
3382 | /* Use the large buffer method to calculate cursor watermark */ |
3383 | line_time_us = (planeb_htotal * 1000) / planeb_clock; | |
3384 | ||
3385 | /* Use ns/us then divide to preserve precision */ | |
3386 | line_count = (ILK_LP0_CURSOR_LATENCY / line_time_us + 1000) / 1000; | |
3387 | ||
3388 | /* calculate the cursor watermark for cursor B */ | |
3389 | entries_required = line_count * 64 * pixel_size; | |
3390 | entries_required = DIV_ROUND_UP(entries_required, | |
3391 | ironlake_cursor_wm_info.cacheline_size); | |
3392 | cursorb_wm = entries_required + ironlake_cursor_wm_info.guard_size; | |
3393 | if (cursorb_wm > ironlake_cursor_wm_info.max_wm) | |
3394 | cursorb_wm = ironlake_cursor_wm_info.max_wm; | |
3395 | ||
7f8a8569 ZW |
3396 | reg_value = I915_READ(WM0_PIPEB_ILK); |
3397 | reg_value &= ~(WM0_PIPE_PLANE_MASK | WM0_PIPE_CURSOR_MASK); | |
3398 | reg_value |= (planeb_wm << WM0_PIPE_PLANE_SHIFT) | | |
3399 | (cursorb_wm & WM0_PIPE_CURSOR_MASK); | |
3400 | I915_WRITE(WM0_PIPEB_ILK, reg_value); | |
3401 | DRM_DEBUG_KMS("FIFO watermarks For pipe B - plane %d, " | |
3402 | "cursor: %d\n", planeb_wm, cursorb_wm); | |
3403 | } | |
3404 | ||
3405 | /* | |
3406 | * Calculate and update the self-refresh watermark only when one | |
3407 | * display plane is used. | |
3408 | */ | |
3409 | if (!planea_clock || !planeb_clock) { | |
c936f44d | 3410 | |
7f8a8569 ZW |
3411 | /* Read the self-refresh latency. The unit is 0.5us */ |
3412 | int ilk_sr_latency = I915_READ(MLTR_ILK) & ILK_SRLT_MASK; | |
3413 | ||
3414 | sr_clock = planea_clock ? planea_clock : planeb_clock; | |
fa143215 | 3415 | line_time_us = ((sr_htotal * 1000) / sr_clock); |
7f8a8569 ZW |
3416 | |
3417 | /* Use ns/us then divide to preserve precision */ | |
3418 | line_count = ((ilk_sr_latency * 500) / line_time_us + 1000) | |
3419 | / 1000; | |
3420 | ||
3421 | /* calculate the self-refresh watermark for display plane */ | |
3422 | entries_required = line_count * sr_hdisplay * pixel_size; | |
3423 | entries_required = DIV_ROUND_UP(entries_required, | |
8de9b311 | 3424 | ironlake_display_srwm_info.cacheline_size); |
7f8a8569 ZW |
3425 | sr_wm = entries_required + |
3426 | ironlake_display_srwm_info.guard_size; | |
3427 | ||
3428 | /* calculate the self-refresh watermark for display cursor */ | |
3429 | entries_required = line_count * pixel_size * 64; | |
3430 | entries_required = DIV_ROUND_UP(entries_required, | |
8de9b311 | 3431 | ironlake_cursor_srwm_info.cacheline_size); |
7f8a8569 ZW |
3432 | cursor_wm = entries_required + |
3433 | ironlake_cursor_srwm_info.guard_size; | |
3434 | ||
3435 | /* configure watermark and enable self-refresh */ | |
3436 | reg_value = I915_READ(WM1_LP_ILK); | |
3437 | reg_value &= ~(WM1_LP_LATENCY_MASK | WM1_LP_SR_MASK | | |
3438 | WM1_LP_CURSOR_MASK); | |
3439 | reg_value |= WM1_LP_SR_EN | | |
3440 | (ilk_sr_latency << WM1_LP_LATENCY_SHIFT) | | |
3441 | (sr_wm << WM1_LP_SR_SHIFT) | cursor_wm; | |
3442 | ||
3443 | I915_WRITE(WM1_LP_ILK, reg_value); | |
3444 | DRM_DEBUG_KMS("self-refresh watermark: display plane %d " | |
3445 | "cursor %d\n", sr_wm, cursor_wm); | |
3446 | ||
3447 | } else { | |
3448 | /* Turn off self refresh if both pipes are enabled */ | |
3449 | I915_WRITE(WM1_LP_ILK, I915_READ(WM1_LP_ILK) & ~WM1_LP_SR_EN); | |
3450 | } | |
3451 | } | |
7662c8bd SL |
3452 | /** |
3453 | * intel_update_watermarks - update FIFO watermark values based on current modes | |
3454 | * | |
3455 | * Calculate watermark values for the various WM regs based on current mode | |
3456 | * and plane configuration. | |
3457 | * | |
3458 | * There are several cases to deal with here: | |
3459 | * - normal (i.e. non-self-refresh) | |
3460 | * - self-refresh (SR) mode | |
3461 | * - lines are large relative to FIFO size (buffer can hold up to 2) | |
3462 | * - lines are small relative to FIFO size (buffer can hold more than 2 | |
3463 | * lines), so need to account for TLB latency | |
3464 | * | |
3465 | * The normal calculation is: | |
3466 | * watermark = dotclock * bytes per pixel * latency | |
3467 | * where latency is platform & configuration dependent (we assume pessimal | |
3468 | * values here). | |
3469 | * | |
3470 | * The SR calculation is: | |
3471 | * watermark = (trunc(latency/line time)+1) * surface width * | |
3472 | * bytes per pixel | |
3473 | * where | |
3474 | * line time = htotal / dotclock | |
fa143215 | 3475 | * surface width = hdisplay for normal plane and 64 for cursor |
7662c8bd SL |
3476 | * and latency is assumed to be high, as above. |
3477 | * | |
3478 | * The final value programmed to the register should always be rounded up, | |
3479 | * and include an extra 2 entries to account for clock crossings. | |
3480 | * | |
3481 | * We don't use the sprite, so we can ignore that. And on Crestline we have | |
3482 | * to set the non-SR watermarks to 8. | |
3483 | */ | |
3484 | static void intel_update_watermarks(struct drm_device *dev) | |
3485 | { | |
e70236a8 | 3486 | struct drm_i915_private *dev_priv = dev->dev_private; |
7662c8bd | 3487 | struct drm_crtc *crtc; |
7662c8bd SL |
3488 | int sr_hdisplay = 0; |
3489 | unsigned long planea_clock = 0, planeb_clock = 0, sr_clock = 0; | |
3490 | int enabled = 0, pixel_size = 0; | |
fa143215 | 3491 | int sr_htotal = 0; |
7662c8bd | 3492 | |
c03342fa ZW |
3493 | if (!dev_priv->display.update_wm) |
3494 | return; | |
3495 | ||
7662c8bd SL |
3496 | /* Get the clock config from both planes */ |
3497 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
debcaddc CW |
3498 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3499 | if (intel_crtc->dpms_mode == DRM_MODE_DPMS_ON) { | |
7662c8bd SL |
3500 | enabled++; |
3501 | if (intel_crtc->plane == 0) { | |
28c97730 | 3502 | DRM_DEBUG_KMS("plane A (pipe %d) clock: %d\n", |
7662c8bd SL |
3503 | intel_crtc->pipe, crtc->mode.clock); |
3504 | planea_clock = crtc->mode.clock; | |
3505 | } else { | |
28c97730 | 3506 | DRM_DEBUG_KMS("plane B (pipe %d) clock: %d\n", |
7662c8bd SL |
3507 | intel_crtc->pipe, crtc->mode.clock); |
3508 | planeb_clock = crtc->mode.clock; | |
3509 | } | |
3510 | sr_hdisplay = crtc->mode.hdisplay; | |
3511 | sr_clock = crtc->mode.clock; | |
fa143215 | 3512 | sr_htotal = crtc->mode.htotal; |
7662c8bd SL |
3513 | if (crtc->fb) |
3514 | pixel_size = crtc->fb->bits_per_pixel / 8; | |
3515 | else | |
3516 | pixel_size = 4; /* by default */ | |
3517 | } | |
3518 | } | |
3519 | ||
3520 | if (enabled <= 0) | |
3521 | return; | |
3522 | ||
e70236a8 | 3523 | dev_priv->display.update_wm(dev, planea_clock, planeb_clock, |
fa143215 | 3524 | sr_hdisplay, sr_htotal, pixel_size); |
7662c8bd SL |
3525 | } |
3526 | ||
5c3b82e2 CW |
3527 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
3528 | struct drm_display_mode *mode, | |
3529 | struct drm_display_mode *adjusted_mode, | |
3530 | int x, int y, | |
3531 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
3532 | { |
3533 | struct drm_device *dev = crtc->dev; | |
3534 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3535 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3536 | int pipe = intel_crtc->pipe; | |
80824003 | 3537 | int plane = intel_crtc->plane; |
79e53945 JB |
3538 | int fp_reg = (pipe == 0) ? FPA0 : FPB0; |
3539 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; | |
3540 | int dpll_md_reg = (intel_crtc->pipe == 0) ? DPLL_A_MD : DPLL_B_MD; | |
80824003 | 3541 | int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; |
79e53945 JB |
3542 | int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; |
3543 | int htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B; | |
3544 | int hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B; | |
3545 | int hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B; | |
3546 | int vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B; | |
3547 | int vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B; | |
3548 | int vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B; | |
80824003 JB |
3549 | int dspsize_reg = (plane == 0) ? DSPASIZE : DSPBSIZE; |
3550 | int dsppos_reg = (plane == 0) ? DSPAPOS : DSPBPOS; | |
79e53945 | 3551 | int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC; |
c751ce4f | 3552 | int refclk, num_connectors = 0; |
652c393a JB |
3553 | intel_clock_t clock, reduced_clock; |
3554 | u32 dpll = 0, fp = 0, fp2 = 0, dspcntr, pipeconf; | |
3555 | bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false; | |
a4fc5ed6 | 3556 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
32f9d658 | 3557 | bool is_edp = false; |
79e53945 | 3558 | struct drm_mode_config *mode_config = &dev->mode_config; |
c5e4df33 | 3559 | struct drm_encoder *encoder; |
55f78c43 | 3560 | struct intel_encoder *intel_encoder = NULL; |
d4906093 | 3561 | const intel_limit_t *limit; |
5c3b82e2 | 3562 | int ret; |
2c07245f ZW |
3563 | struct fdi_m_n m_n = {0}; |
3564 | int data_m1_reg = (pipe == 0) ? PIPEA_DATA_M1 : PIPEB_DATA_M1; | |
3565 | int data_n1_reg = (pipe == 0) ? PIPEA_DATA_N1 : PIPEB_DATA_N1; | |
3566 | int link_m1_reg = (pipe == 0) ? PIPEA_LINK_M1 : PIPEB_LINK_M1; | |
3567 | int link_n1_reg = (pipe == 0) ? PIPEA_LINK_N1 : PIPEB_LINK_N1; | |
3568 | int pch_fp_reg = (pipe == 0) ? PCH_FPA0 : PCH_FPB0; | |
3569 | int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B; | |
3570 | int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; | |
8db9d77b ZW |
3571 | int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; |
3572 | int trans_dpll_sel = (pipe == 0) ? 0 : 1; | |
541998a1 | 3573 | int lvds_reg = LVDS; |
2c07245f ZW |
3574 | u32 temp; |
3575 | int sdvo_pixel_multiply; | |
5eb08b69 | 3576 | int target_clock; |
79e53945 JB |
3577 | |
3578 | drm_vblank_pre_modeset(dev, pipe); | |
3579 | ||
c5e4df33 | 3580 | list_for_each_entry(encoder, &mode_config->encoder_list, head) { |
79e53945 | 3581 | |
c5e4df33 | 3582 | if (!encoder || encoder->crtc != crtc) |
79e53945 JB |
3583 | continue; |
3584 | ||
c5e4df33 ZW |
3585 | intel_encoder = enc_to_intel_encoder(encoder); |
3586 | ||
21d40d37 | 3587 | switch (intel_encoder->type) { |
79e53945 JB |
3588 | case INTEL_OUTPUT_LVDS: |
3589 | is_lvds = true; | |
3590 | break; | |
3591 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 3592 | case INTEL_OUTPUT_HDMI: |
79e53945 | 3593 | is_sdvo = true; |
21d40d37 | 3594 | if (intel_encoder->needs_tv_clock) |
e2f0ba97 | 3595 | is_tv = true; |
79e53945 JB |
3596 | break; |
3597 | case INTEL_OUTPUT_DVO: | |
3598 | is_dvo = true; | |
3599 | break; | |
3600 | case INTEL_OUTPUT_TVOUT: | |
3601 | is_tv = true; | |
3602 | break; | |
3603 | case INTEL_OUTPUT_ANALOG: | |
3604 | is_crt = true; | |
3605 | break; | |
a4fc5ed6 KP |
3606 | case INTEL_OUTPUT_DISPLAYPORT: |
3607 | is_dp = true; | |
3608 | break; | |
32f9d658 ZW |
3609 | case INTEL_OUTPUT_EDP: |
3610 | is_edp = true; | |
3611 | break; | |
79e53945 | 3612 | } |
43565a06 | 3613 | |
c751ce4f | 3614 | num_connectors++; |
79e53945 JB |
3615 | } |
3616 | ||
c751ce4f | 3617 | if (is_lvds && dev_priv->lvds_use_ssc && num_connectors < 2) { |
43565a06 | 3618 | refclk = dev_priv->lvds_ssc_freq * 1000; |
28c97730 ZY |
3619 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
3620 | refclk / 1000); | |
43565a06 | 3621 | } else if (IS_I9XX(dev)) { |
79e53945 | 3622 | refclk = 96000; |
bad720ff | 3623 | if (HAS_PCH_SPLIT(dev)) |
2c07245f | 3624 | refclk = 120000; /* 120Mhz refclk */ |
79e53945 JB |
3625 | } else { |
3626 | refclk = 48000; | |
3627 | } | |
a4fc5ed6 | 3628 | |
79e53945 | 3629 | |
d4906093 ML |
3630 | /* |
3631 | * Returns a set of divisors for the desired target clock with the given | |
3632 | * refclk, or FALSE. The returned values represent the clock equation: | |
3633 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
3634 | */ | |
3635 | limit = intel_limit(crtc); | |
3636 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock); | |
79e53945 JB |
3637 | if (!ok) { |
3638 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
1f803ee5 | 3639 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 3640 | return -EINVAL; |
79e53945 JB |
3641 | } |
3642 | ||
cda4b7d3 CW |
3643 | /* Ensure that the cursor is valid for the new mode before changing... */ |
3644 | intel_crtc_update_cursor(crtc); | |
3645 | ||
ddc9003c ZY |
3646 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
3647 | has_reduced_clock = limit->find_pll(limit, crtc, | |
18f9ed12 | 3648 | dev_priv->lvds_downclock, |
652c393a JB |
3649 | refclk, |
3650 | &reduced_clock); | |
18f9ed12 ZY |
3651 | if (has_reduced_clock && (clock.p != reduced_clock.p)) { |
3652 | /* | |
3653 | * If the different P is found, it means that we can't | |
3654 | * switch the display clock by using the FP0/FP1. | |
3655 | * In such case we will disable the LVDS downclock | |
3656 | * feature. | |
3657 | */ | |
3658 | DRM_DEBUG_KMS("Different P is found for " | |
3659 | "LVDS clock/downclock\n"); | |
3660 | has_reduced_clock = 0; | |
3661 | } | |
652c393a | 3662 | } |
7026d4ac ZW |
3663 | /* SDVO TV has fixed PLL values depend on its clock range, |
3664 | this mirrors vbios setting. */ | |
3665 | if (is_sdvo && is_tv) { | |
3666 | if (adjusted_mode->clock >= 100000 | |
3667 | && adjusted_mode->clock < 140500) { | |
3668 | clock.p1 = 2; | |
3669 | clock.p2 = 10; | |
3670 | clock.n = 3; | |
3671 | clock.m1 = 16; | |
3672 | clock.m2 = 8; | |
3673 | } else if (adjusted_mode->clock >= 140500 | |
3674 | && adjusted_mode->clock <= 200000) { | |
3675 | clock.p1 = 1; | |
3676 | clock.p2 = 10; | |
3677 | clock.n = 6; | |
3678 | clock.m1 = 12; | |
3679 | clock.m2 = 8; | |
3680 | } | |
3681 | } | |
3682 | ||
2c07245f | 3683 | /* FDI link */ |
bad720ff | 3684 | if (HAS_PCH_SPLIT(dev)) { |
77ffb597 | 3685 | int lane = 0, link_bw, bpp; |
32f9d658 ZW |
3686 | /* eDP doesn't require FDI link, so just set DP M/N |
3687 | according to current link config */ | |
3688 | if (is_edp) { | |
5eb08b69 | 3689 | target_clock = mode->clock; |
55f78c43 | 3690 | intel_edp_link_config(intel_encoder, |
32f9d658 ZW |
3691 | &lane, &link_bw); |
3692 | } else { | |
3693 | /* DP over FDI requires target mode clock | |
3694 | instead of link clock */ | |
3695 | if (is_dp) | |
3696 | target_clock = mode->clock; | |
3697 | else | |
3698 | target_clock = adjusted_mode->clock; | |
32f9d658 ZW |
3699 | link_bw = 270000; |
3700 | } | |
58a27471 ZW |
3701 | |
3702 | /* determine panel color depth */ | |
3703 | temp = I915_READ(pipeconf_reg); | |
e5a95eb7 ZY |
3704 | temp &= ~PIPE_BPC_MASK; |
3705 | if (is_lvds) { | |
3706 | int lvds_reg = I915_READ(PCH_LVDS); | |
3707 | /* the BPC will be 6 if it is 18-bit LVDS panel */ | |
3708 | if ((lvds_reg & LVDS_A3_POWER_MASK) == LVDS_A3_POWER_UP) | |
3709 | temp |= PIPE_8BPC; | |
3710 | else | |
3711 | temp |= PIPE_6BPC; | |
36e83a18 | 3712 | } else if (is_edp || (is_dp && intel_pch_has_edp(crtc))) { |
885a5fb5 ZW |
3713 | switch (dev_priv->edp_bpp/3) { |
3714 | case 8: | |
3715 | temp |= PIPE_8BPC; | |
3716 | break; | |
3717 | case 10: | |
3718 | temp |= PIPE_10BPC; | |
3719 | break; | |
3720 | case 6: | |
3721 | temp |= PIPE_6BPC; | |
3722 | break; | |
3723 | case 12: | |
3724 | temp |= PIPE_12BPC; | |
3725 | break; | |
3726 | } | |
e5a95eb7 ZY |
3727 | } else |
3728 | temp |= PIPE_8BPC; | |
3729 | I915_WRITE(pipeconf_reg, temp); | |
3730 | I915_READ(pipeconf_reg); | |
58a27471 ZW |
3731 | |
3732 | switch (temp & PIPE_BPC_MASK) { | |
3733 | case PIPE_8BPC: | |
3734 | bpp = 24; | |
3735 | break; | |
3736 | case PIPE_10BPC: | |
3737 | bpp = 30; | |
3738 | break; | |
3739 | case PIPE_6BPC: | |
3740 | bpp = 18; | |
3741 | break; | |
3742 | case PIPE_12BPC: | |
3743 | bpp = 36; | |
3744 | break; | |
3745 | default: | |
3746 | DRM_ERROR("unknown pipe bpc value\n"); | |
3747 | bpp = 24; | |
3748 | } | |
3749 | ||
77ffb597 AJ |
3750 | if (!lane) { |
3751 | /* | |
3752 | * Account for spread spectrum to avoid | |
3753 | * oversubscribing the link. Max center spread | |
3754 | * is 2.5%; use 5% for safety's sake. | |
3755 | */ | |
3756 | u32 bps = target_clock * bpp * 21 / 20; | |
3757 | lane = bps / (link_bw * 8) + 1; | |
3758 | } | |
3759 | ||
3760 | intel_crtc->fdi_lanes = lane; | |
3761 | ||
f2b115e6 | 3762 | ironlake_compute_m_n(bpp, lane, target_clock, link_bw, &m_n); |
5eb08b69 | 3763 | } |
2c07245f | 3764 | |
c038e51e ZW |
3765 | /* Ironlake: try to setup display ref clock before DPLL |
3766 | * enabling. This is only under driver's control after | |
3767 | * PCH B stepping, previous chipset stepping should be | |
3768 | * ignoring this setting. | |
3769 | */ | |
bad720ff | 3770 | if (HAS_PCH_SPLIT(dev)) { |
c038e51e ZW |
3771 | temp = I915_READ(PCH_DREF_CONTROL); |
3772 | /* Always enable nonspread source */ | |
3773 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; | |
3774 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; | |
3775 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
3776 | POSTING_READ(PCH_DREF_CONTROL); | |
3777 | ||
3778 | temp &= ~DREF_SSC_SOURCE_MASK; | |
3779 | temp |= DREF_SSC_SOURCE_ENABLE; | |
3780 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
3781 | POSTING_READ(PCH_DREF_CONTROL); | |
3782 | ||
3783 | udelay(200); | |
3784 | ||
3785 | if (is_edp) { | |
3786 | if (dev_priv->lvds_use_ssc) { | |
3787 | temp |= DREF_SSC1_ENABLE; | |
3788 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
3789 | POSTING_READ(PCH_DREF_CONTROL); | |
3790 | ||
3791 | udelay(200); | |
3792 | ||
3793 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
3794 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; | |
3795 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
3796 | POSTING_READ(PCH_DREF_CONTROL); | |
3797 | } else { | |
3798 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
3799 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
3800 | POSTING_READ(PCH_DREF_CONTROL); | |
3801 | } | |
3802 | } | |
3803 | } | |
3804 | ||
f2b115e6 | 3805 | if (IS_PINEVIEW(dev)) { |
2177832f | 3806 | fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2; |
652c393a JB |
3807 | if (has_reduced_clock) |
3808 | fp2 = (1 << reduced_clock.n) << 16 | | |
3809 | reduced_clock.m1 << 8 | reduced_clock.m2; | |
3810 | } else { | |
2177832f | 3811 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
652c393a JB |
3812 | if (has_reduced_clock) |
3813 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
3814 | reduced_clock.m2; | |
3815 | } | |
79e53945 | 3816 | |
bad720ff | 3817 | if (!HAS_PCH_SPLIT(dev)) |
2c07245f ZW |
3818 | dpll = DPLL_VGA_MODE_DIS; |
3819 | ||
79e53945 JB |
3820 | if (IS_I9XX(dev)) { |
3821 | if (is_lvds) | |
3822 | dpll |= DPLLB_MODE_LVDS; | |
3823 | else | |
3824 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
3825 | if (is_sdvo) { | |
3826 | dpll |= DPLL_DVO_HIGH_SPEED; | |
2c07245f | 3827 | sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; |
942642a4 | 3828 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
79e53945 | 3829 | dpll |= (sdvo_pixel_multiply - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; |
bad720ff | 3830 | else if (HAS_PCH_SPLIT(dev)) |
2c07245f | 3831 | dpll |= (sdvo_pixel_multiply - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; |
79e53945 | 3832 | } |
a4fc5ed6 KP |
3833 | if (is_dp) |
3834 | dpll |= DPLL_DVO_HIGH_SPEED; | |
79e53945 JB |
3835 | |
3836 | /* compute bitmask from p1 value */ | |
f2b115e6 AJ |
3837 | if (IS_PINEVIEW(dev)) |
3838 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
2c07245f | 3839 | else { |
2177832f | 3840 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
2c07245f | 3841 | /* also FPA1 */ |
bad720ff | 3842 | if (HAS_PCH_SPLIT(dev)) |
2c07245f | 3843 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
652c393a JB |
3844 | if (IS_G4X(dev) && has_reduced_clock) |
3845 | dpll |= (1 << (reduced_clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
2c07245f | 3846 | } |
79e53945 JB |
3847 | switch (clock.p2) { |
3848 | case 5: | |
3849 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
3850 | break; | |
3851 | case 7: | |
3852 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
3853 | break; | |
3854 | case 10: | |
3855 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
3856 | break; | |
3857 | case 14: | |
3858 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
3859 | break; | |
3860 | } | |
bad720ff | 3861 | if (IS_I965G(dev) && !HAS_PCH_SPLIT(dev)) |
79e53945 JB |
3862 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); |
3863 | } else { | |
3864 | if (is_lvds) { | |
3865 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
3866 | } else { | |
3867 | if (clock.p1 == 2) | |
3868 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
3869 | else | |
3870 | dpll |= (clock.p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
3871 | if (clock.p2 == 4) | |
3872 | dpll |= PLL_P2_DIVIDE_BY_4; | |
3873 | } | |
3874 | } | |
3875 | ||
43565a06 KH |
3876 | if (is_sdvo && is_tv) |
3877 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
3878 | else if (is_tv) | |
79e53945 | 3879 | /* XXX: just matching BIOS for now */ |
43565a06 | 3880 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
79e53945 | 3881 | dpll |= 3; |
c751ce4f | 3882 | else if (is_lvds && dev_priv->lvds_use_ssc && num_connectors < 2) |
43565a06 | 3883 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
3884 | else |
3885 | dpll |= PLL_REF_INPUT_DREFCLK; | |
3886 | ||
3887 | /* setup pipeconf */ | |
3888 | pipeconf = I915_READ(pipeconf_reg); | |
3889 | ||
3890 | /* Set up the display plane register */ | |
3891 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
3892 | ||
f2b115e6 | 3893 | /* Ironlake's plane is forced to pipe, bit 24 is to |
2c07245f | 3894 | enable color space conversion */ |
bad720ff | 3895 | if (!HAS_PCH_SPLIT(dev)) { |
2c07245f | 3896 | if (pipe == 0) |
80824003 | 3897 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; |
2c07245f ZW |
3898 | else |
3899 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
3900 | } | |
79e53945 JB |
3901 | |
3902 | if (pipe == 0 && !IS_I965G(dev)) { | |
3903 | /* Enable pixel doubling when the dot clock is > 90% of the (display) | |
3904 | * core speed. | |
3905 | * | |
3906 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
3907 | * pipe == 0 check? | |
3908 | */ | |
e70236a8 JB |
3909 | if (mode->clock > |
3910 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
79e53945 JB |
3911 | pipeconf |= PIPEACONF_DOUBLE_WIDE; |
3912 | else | |
3913 | pipeconf &= ~PIPEACONF_DOUBLE_WIDE; | |
3914 | } | |
3915 | ||
8d86dc6a LT |
3916 | dspcntr |= DISPLAY_PLANE_ENABLE; |
3917 | pipeconf |= PIPEACONF_ENABLE; | |
3918 | dpll |= DPLL_VCO_ENABLE; | |
3919 | ||
3920 | ||
79e53945 | 3921 | /* Disable the panel fitter if it was on our pipe */ |
bad720ff | 3922 | if (!HAS_PCH_SPLIT(dev) && intel_panel_fitter_pipe(dev) == pipe) |
79e53945 JB |
3923 | I915_WRITE(PFIT_CONTROL, 0); |
3924 | ||
28c97730 | 3925 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
79e53945 JB |
3926 | drm_mode_debug_printmodeline(mode); |
3927 | ||
f2b115e6 | 3928 | /* assign to Ironlake registers */ |
bad720ff | 3929 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f ZW |
3930 | fp_reg = pch_fp_reg; |
3931 | dpll_reg = pch_dpll_reg; | |
3932 | } | |
79e53945 | 3933 | |
d240f20f | 3934 | if (!is_edp) { |
79e53945 JB |
3935 | I915_WRITE(fp_reg, fp); |
3936 | I915_WRITE(dpll_reg, dpll & ~DPLL_VCO_ENABLE); | |
3937 | I915_READ(dpll_reg); | |
3938 | udelay(150); | |
3939 | } | |
3940 | ||
8db9d77b ZW |
3941 | /* enable transcoder DPLL */ |
3942 | if (HAS_PCH_CPT(dev)) { | |
3943 | temp = I915_READ(PCH_DPLL_SEL); | |
3944 | if (trans_dpll_sel == 0) | |
3945 | temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL); | |
3946 | else | |
3947 | temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); | |
3948 | I915_WRITE(PCH_DPLL_SEL, temp); | |
3949 | I915_READ(PCH_DPLL_SEL); | |
3950 | udelay(150); | |
3951 | } | |
3952 | ||
7b824ec2 EA |
3953 | if (HAS_PCH_SPLIT(dev)) { |
3954 | pipeconf &= ~PIPE_ENABLE_DITHER; | |
3955 | pipeconf &= ~PIPE_DITHER_TYPE_MASK; | |
3956 | } | |
3957 | ||
79e53945 JB |
3958 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
3959 | * This is an exception to the general rule that mode_set doesn't turn | |
3960 | * things on. | |
3961 | */ | |
3962 | if (is_lvds) { | |
541998a1 | 3963 | u32 lvds; |
79e53945 | 3964 | |
bad720ff | 3965 | if (HAS_PCH_SPLIT(dev)) |
541998a1 ZW |
3966 | lvds_reg = PCH_LVDS; |
3967 | ||
3968 | lvds = I915_READ(lvds_reg); | |
0f3ee801 | 3969 | lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
b3b095b3 ZW |
3970 | if (pipe == 1) { |
3971 | if (HAS_PCH_CPT(dev)) | |
3972 | lvds |= PORT_TRANS_B_SEL_CPT; | |
3973 | else | |
3974 | lvds |= LVDS_PIPEB_SELECT; | |
3975 | } else { | |
3976 | if (HAS_PCH_CPT(dev)) | |
3977 | lvds &= ~PORT_TRANS_SEL_MASK; | |
3978 | else | |
3979 | lvds &= ~LVDS_PIPEB_SELECT; | |
3980 | } | |
a3e17eb8 ZY |
3981 | /* set the corresponsding LVDS_BORDER bit */ |
3982 | lvds |= dev_priv->lvds_border_bits; | |
79e53945 JB |
3983 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
3984 | * set the DPLLs for dual-channel mode or not. | |
3985 | */ | |
3986 | if (clock.p2 == 7) | |
3987 | lvds |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
3988 | else | |
3989 | lvds &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); | |
3990 | ||
3991 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
3992 | * appropriately here, but we need to look more thoroughly into how | |
3993 | * panels behave in the two modes. | |
3994 | */ | |
898822ce ZY |
3995 | /* set the dithering flag */ |
3996 | if (IS_I965G(dev)) { | |
3997 | if (dev_priv->lvds_dither) { | |
0a31a448 | 3998 | if (HAS_PCH_SPLIT(dev)) { |
898822ce | 3999 | pipeconf |= PIPE_ENABLE_DITHER; |
0a31a448 AJ |
4000 | pipeconf |= PIPE_DITHER_TYPE_ST01; |
4001 | } else | |
898822ce ZY |
4002 | lvds |= LVDS_ENABLE_DITHER; |
4003 | } else { | |
7b824ec2 | 4004 | if (!HAS_PCH_SPLIT(dev)) { |
898822ce | 4005 | lvds &= ~LVDS_ENABLE_DITHER; |
7b824ec2 | 4006 | } |
898822ce ZY |
4007 | } |
4008 | } | |
541998a1 ZW |
4009 | I915_WRITE(lvds_reg, lvds); |
4010 | I915_READ(lvds_reg); | |
79e53945 | 4011 | } |
a4fc5ed6 KP |
4012 | if (is_dp) |
4013 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
8db9d77b ZW |
4014 | else if (HAS_PCH_SPLIT(dev)) { |
4015 | /* For non-DP output, clear any trans DP clock recovery setting.*/ | |
4016 | if (pipe == 0) { | |
4017 | I915_WRITE(TRANSA_DATA_M1, 0); | |
4018 | I915_WRITE(TRANSA_DATA_N1, 0); | |
4019 | I915_WRITE(TRANSA_DP_LINK_M1, 0); | |
4020 | I915_WRITE(TRANSA_DP_LINK_N1, 0); | |
4021 | } else { | |
4022 | I915_WRITE(TRANSB_DATA_M1, 0); | |
4023 | I915_WRITE(TRANSB_DATA_N1, 0); | |
4024 | I915_WRITE(TRANSB_DP_LINK_M1, 0); | |
4025 | I915_WRITE(TRANSB_DP_LINK_N1, 0); | |
4026 | } | |
4027 | } | |
79e53945 | 4028 | |
32f9d658 ZW |
4029 | if (!is_edp) { |
4030 | I915_WRITE(fp_reg, fp); | |
79e53945 | 4031 | I915_WRITE(dpll_reg, dpll); |
32f9d658 ZW |
4032 | I915_READ(dpll_reg); |
4033 | /* Wait for the clocks to stabilize. */ | |
4034 | udelay(150); | |
4035 | ||
bad720ff | 4036 | if (IS_I965G(dev) && !HAS_PCH_SPLIT(dev)) { |
bb66c512 ZY |
4037 | if (is_sdvo) { |
4038 | sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; | |
4039 | I915_WRITE(dpll_md_reg, (0 << DPLL_MD_UDI_DIVIDER_SHIFT) | | |
32f9d658 | 4040 | ((sdvo_pixel_multiply - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT)); |
bb66c512 ZY |
4041 | } else |
4042 | I915_WRITE(dpll_md_reg, 0); | |
32f9d658 ZW |
4043 | } else { |
4044 | /* write it again -- the BIOS does, after all */ | |
4045 | I915_WRITE(dpll_reg, dpll); | |
4046 | } | |
4047 | I915_READ(dpll_reg); | |
4048 | /* Wait for the clocks to stabilize. */ | |
4049 | udelay(150); | |
79e53945 | 4050 | } |
79e53945 | 4051 | |
652c393a JB |
4052 | if (is_lvds && has_reduced_clock && i915_powersave) { |
4053 | I915_WRITE(fp_reg + 4, fp2); | |
4054 | intel_crtc->lowfreq_avail = true; | |
4055 | if (HAS_PIPE_CXSR(dev)) { | |
28c97730 | 4056 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
652c393a JB |
4057 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
4058 | } | |
4059 | } else { | |
4060 | I915_WRITE(fp_reg + 4, fp); | |
4061 | intel_crtc->lowfreq_avail = false; | |
4062 | if (HAS_PIPE_CXSR(dev)) { | |
28c97730 | 4063 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
652c393a JB |
4064 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
4065 | } | |
4066 | } | |
4067 | ||
734b4157 KH |
4068 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
4069 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; | |
4070 | /* the chip adds 2 halflines automatically */ | |
4071 | adjusted_mode->crtc_vdisplay -= 1; | |
4072 | adjusted_mode->crtc_vtotal -= 1; | |
4073 | adjusted_mode->crtc_vblank_start -= 1; | |
4074 | adjusted_mode->crtc_vblank_end -= 1; | |
4075 | adjusted_mode->crtc_vsync_end -= 1; | |
4076 | adjusted_mode->crtc_vsync_start -= 1; | |
4077 | } else | |
4078 | pipeconf &= ~PIPECONF_INTERLACE_W_FIELD_INDICATION; /* progressive */ | |
4079 | ||
79e53945 JB |
4080 | I915_WRITE(htot_reg, (adjusted_mode->crtc_hdisplay - 1) | |
4081 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
4082 | I915_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start - 1) | | |
4083 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
4084 | I915_WRITE(hsync_reg, (adjusted_mode->crtc_hsync_start - 1) | | |
4085 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
4086 | I915_WRITE(vtot_reg, (adjusted_mode->crtc_vdisplay - 1) | | |
4087 | ((adjusted_mode->crtc_vtotal - 1) << 16)); | |
4088 | I915_WRITE(vblank_reg, (adjusted_mode->crtc_vblank_start - 1) | | |
4089 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); | |
4090 | I915_WRITE(vsync_reg, (adjusted_mode->crtc_vsync_start - 1) | | |
4091 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
4092 | /* pipesrc and dspsize control the size that is scaled from, which should | |
4093 | * always be the user's requested size. | |
4094 | */ | |
bad720ff | 4095 | if (!HAS_PCH_SPLIT(dev)) { |
2c07245f ZW |
4096 | I915_WRITE(dspsize_reg, ((mode->vdisplay - 1) << 16) | |
4097 | (mode->hdisplay - 1)); | |
4098 | I915_WRITE(dsppos_reg, 0); | |
4099 | } | |
79e53945 | 4100 | I915_WRITE(pipesrc_reg, ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); |
2c07245f | 4101 | |
bad720ff | 4102 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f ZW |
4103 | I915_WRITE(data_m1_reg, TU_SIZE(m_n.tu) | m_n.gmch_m); |
4104 | I915_WRITE(data_n1_reg, TU_SIZE(m_n.tu) | m_n.gmch_n); | |
4105 | I915_WRITE(link_m1_reg, m_n.link_m); | |
4106 | I915_WRITE(link_n1_reg, m_n.link_n); | |
4107 | ||
32f9d658 | 4108 | if (is_edp) { |
f2b115e6 | 4109 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
32f9d658 ZW |
4110 | } else { |
4111 | /* enable FDI RX PLL too */ | |
4112 | temp = I915_READ(fdi_rx_reg); | |
4113 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE); | |
8db9d77b ZW |
4114 | I915_READ(fdi_rx_reg); |
4115 | udelay(200); | |
4116 | ||
4117 | /* enable FDI TX PLL too */ | |
4118 | temp = I915_READ(fdi_tx_reg); | |
4119 | I915_WRITE(fdi_tx_reg, temp | FDI_TX_PLL_ENABLE); | |
4120 | I915_READ(fdi_tx_reg); | |
4121 | ||
4122 | /* enable FDI RX PCDCLK */ | |
4123 | temp = I915_READ(fdi_rx_reg); | |
4124 | I915_WRITE(fdi_rx_reg, temp | FDI_SEL_PCDCLK); | |
4125 | I915_READ(fdi_rx_reg); | |
32f9d658 ZW |
4126 | udelay(200); |
4127 | } | |
2c07245f ZW |
4128 | } |
4129 | ||
79e53945 JB |
4130 | I915_WRITE(pipeconf_reg, pipeconf); |
4131 | I915_READ(pipeconf_reg); | |
4132 | ||
9d0498a2 | 4133 | intel_wait_for_vblank(dev, pipe); |
79e53945 | 4134 | |
c2416fc6 | 4135 | if (IS_IRONLAKE(dev)) { |
553bd149 ZW |
4136 | /* enable address swizzle for tiling buffer */ |
4137 | temp = I915_READ(DISP_ARB_CTL); | |
4138 | I915_WRITE(DISP_ARB_CTL, temp | DISP_TILE_SURFACE_SWIZZLING); | |
4139 | } | |
4140 | ||
79e53945 JB |
4141 | I915_WRITE(dspcntr_reg, dspcntr); |
4142 | ||
4143 | /* Flush the plane changes */ | |
5c3b82e2 | 4144 | ret = intel_pipe_set_base(crtc, x, y, old_fb); |
7662c8bd SL |
4145 | |
4146 | intel_update_watermarks(dev); | |
4147 | ||
79e53945 | 4148 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 4149 | |
1f803ee5 | 4150 | return ret; |
79e53945 JB |
4151 | } |
4152 | ||
4153 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ | |
4154 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
4155 | { | |
4156 | struct drm_device *dev = crtc->dev; | |
4157 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4158 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4159 | int palreg = (intel_crtc->pipe == 0) ? PALETTE_A : PALETTE_B; | |
4160 | int i; | |
4161 | ||
4162 | /* The clocks have to be on to load the palette. */ | |
4163 | if (!crtc->enabled) | |
4164 | return; | |
4165 | ||
f2b115e6 | 4166 | /* use legacy palette for Ironlake */ |
bad720ff | 4167 | if (HAS_PCH_SPLIT(dev)) |
2c07245f ZW |
4168 | palreg = (intel_crtc->pipe == 0) ? LGC_PALETTE_A : |
4169 | LGC_PALETTE_B; | |
4170 | ||
79e53945 JB |
4171 | for (i = 0; i < 256; i++) { |
4172 | I915_WRITE(palreg + 4 * i, | |
4173 | (intel_crtc->lut_r[i] << 16) | | |
4174 | (intel_crtc->lut_g[i] << 8) | | |
4175 | intel_crtc->lut_b[i]); | |
4176 | } | |
4177 | } | |
4178 | ||
560b85bb CW |
4179 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
4180 | { | |
4181 | struct drm_device *dev = crtc->dev; | |
4182 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4183 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4184 | bool visible = base != 0; | |
4185 | u32 cntl; | |
4186 | ||
4187 | if (intel_crtc->cursor_visible == visible) | |
4188 | return; | |
4189 | ||
4190 | cntl = I915_READ(CURACNTR); | |
4191 | if (visible) { | |
4192 | /* On these chipsets we can only modify the base whilst | |
4193 | * the cursor is disabled. | |
4194 | */ | |
4195 | I915_WRITE(CURABASE, base); | |
4196 | ||
4197 | cntl &= ~(CURSOR_FORMAT_MASK); | |
4198 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ | |
4199 | cntl |= CURSOR_ENABLE | | |
4200 | CURSOR_GAMMA_ENABLE | | |
4201 | CURSOR_FORMAT_ARGB; | |
4202 | } else | |
4203 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
4204 | I915_WRITE(CURACNTR, cntl); | |
4205 | ||
4206 | intel_crtc->cursor_visible = visible; | |
4207 | } | |
4208 | ||
4209 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) | |
4210 | { | |
4211 | struct drm_device *dev = crtc->dev; | |
4212 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4213 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4214 | int pipe = intel_crtc->pipe; | |
4215 | bool visible = base != 0; | |
4216 | ||
4217 | if (intel_crtc->cursor_visible != visible) { | |
4218 | uint32_t cntl = I915_READ(pipe == 0 ? CURACNTR : CURBCNTR); | |
4219 | if (base) { | |
4220 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
4221 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
4222 | cntl |= pipe << 28; /* Connect to correct pipe */ | |
4223 | } else { | |
4224 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
4225 | cntl |= CURSOR_MODE_DISABLE; | |
4226 | } | |
4227 | I915_WRITE(pipe == 0 ? CURACNTR : CURBCNTR, cntl); | |
4228 | ||
4229 | intel_crtc->cursor_visible = visible; | |
4230 | } | |
4231 | /* and commit changes on next vblank */ | |
4232 | I915_WRITE(pipe == 0 ? CURABASE : CURBBASE, base); | |
4233 | } | |
4234 | ||
cda4b7d3 CW |
4235 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
4236 | static void intel_crtc_update_cursor(struct drm_crtc *crtc) | |
4237 | { | |
4238 | struct drm_device *dev = crtc->dev; | |
4239 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4240 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4241 | int pipe = intel_crtc->pipe; | |
4242 | int x = intel_crtc->cursor_x; | |
4243 | int y = intel_crtc->cursor_y; | |
560b85bb | 4244 | u32 base, pos; |
cda4b7d3 CW |
4245 | bool visible; |
4246 | ||
4247 | pos = 0; | |
4248 | ||
87f8ebf3 | 4249 | if (intel_crtc->cursor_on && crtc->fb) { |
cda4b7d3 CW |
4250 | base = intel_crtc->cursor_addr; |
4251 | if (x > (int) crtc->fb->width) | |
4252 | base = 0; | |
4253 | ||
4254 | if (y > (int) crtc->fb->height) | |
4255 | base = 0; | |
4256 | } else | |
4257 | base = 0; | |
4258 | ||
4259 | if (x < 0) { | |
4260 | if (x + intel_crtc->cursor_width < 0) | |
4261 | base = 0; | |
4262 | ||
4263 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
4264 | x = -x; | |
4265 | } | |
4266 | pos |= x << CURSOR_X_SHIFT; | |
4267 | ||
4268 | if (y < 0) { | |
4269 | if (y + intel_crtc->cursor_height < 0) | |
4270 | base = 0; | |
4271 | ||
4272 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
4273 | y = -y; | |
4274 | } | |
4275 | pos |= y << CURSOR_Y_SHIFT; | |
4276 | ||
4277 | visible = base != 0; | |
560b85bb | 4278 | if (!visible && !intel_crtc->cursor_visible) |
cda4b7d3 CW |
4279 | return; |
4280 | ||
4281 | I915_WRITE(pipe == 0 ? CURAPOS : CURBPOS, pos); | |
560b85bb CW |
4282 | if (IS_845G(dev) || IS_I865G(dev)) |
4283 | i845_update_cursor(crtc, base); | |
4284 | else | |
4285 | i9xx_update_cursor(crtc, base); | |
cda4b7d3 CW |
4286 | |
4287 | if (visible) | |
4288 | intel_mark_busy(dev, to_intel_framebuffer(crtc->fb)->obj); | |
4289 | } | |
4290 | ||
79e53945 JB |
4291 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
4292 | struct drm_file *file_priv, | |
4293 | uint32_t handle, | |
4294 | uint32_t width, uint32_t height) | |
4295 | { | |
4296 | struct drm_device *dev = crtc->dev; | |
4297 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4298 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4299 | struct drm_gem_object *bo; | |
4300 | struct drm_i915_gem_object *obj_priv; | |
cda4b7d3 | 4301 | uint32_t addr; |
3f8bc370 | 4302 | int ret; |
79e53945 | 4303 | |
28c97730 | 4304 | DRM_DEBUG_KMS("\n"); |
79e53945 JB |
4305 | |
4306 | /* if we want to turn off the cursor ignore width and height */ | |
4307 | if (!handle) { | |
28c97730 | 4308 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 KH |
4309 | addr = 0; |
4310 | bo = NULL; | |
5004417d | 4311 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 4312 | goto finish; |
79e53945 JB |
4313 | } |
4314 | ||
4315 | /* Currently we only support 64x64 cursors */ | |
4316 | if (width != 64 || height != 64) { | |
4317 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
4318 | return -EINVAL; | |
4319 | } | |
4320 | ||
4321 | bo = drm_gem_object_lookup(dev, file_priv, handle); | |
4322 | if (!bo) | |
4323 | return -ENOENT; | |
4324 | ||
23010e43 | 4325 | obj_priv = to_intel_bo(bo); |
79e53945 JB |
4326 | |
4327 | if (bo->size < width * height * 4) { | |
4328 | DRM_ERROR("buffer is to small\n"); | |
34b8686e DA |
4329 | ret = -ENOMEM; |
4330 | goto fail; | |
79e53945 JB |
4331 | } |
4332 | ||
71acb5eb | 4333 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 4334 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 4335 | if (!dev_priv->info->cursor_needs_physical) { |
71acb5eb DA |
4336 | ret = i915_gem_object_pin(bo, PAGE_SIZE); |
4337 | if (ret) { | |
4338 | DRM_ERROR("failed to pin cursor bo\n"); | |
7f9872e0 | 4339 | goto fail_locked; |
71acb5eb | 4340 | } |
e7b526bb CW |
4341 | |
4342 | ret = i915_gem_object_set_to_gtt_domain(bo, 0); | |
4343 | if (ret) { | |
4344 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
4345 | goto fail_unpin; | |
4346 | } | |
4347 | ||
79e53945 | 4348 | addr = obj_priv->gtt_offset; |
71acb5eb | 4349 | } else { |
6eeefaf3 | 4350 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
cda4b7d3 | 4351 | ret = i915_gem_attach_phys_object(dev, bo, |
6eeefaf3 CW |
4352 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
4353 | align); | |
71acb5eb DA |
4354 | if (ret) { |
4355 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 4356 | goto fail_locked; |
71acb5eb DA |
4357 | } |
4358 | addr = obj_priv->phys_obj->handle->busaddr; | |
3f8bc370 KH |
4359 | } |
4360 | ||
14b60391 JB |
4361 | if (!IS_I9XX(dev)) |
4362 | I915_WRITE(CURSIZE, (height << 12) | width); | |
4363 | ||
3f8bc370 | 4364 | finish: |
3f8bc370 | 4365 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 4366 | if (dev_priv->info->cursor_needs_physical) { |
71acb5eb DA |
4367 | if (intel_crtc->cursor_bo != bo) |
4368 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); | |
4369 | } else | |
4370 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
3f8bc370 KH |
4371 | drm_gem_object_unreference(intel_crtc->cursor_bo); |
4372 | } | |
80824003 | 4373 | |
7f9872e0 | 4374 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
4375 | |
4376 | intel_crtc->cursor_addr = addr; | |
4377 | intel_crtc->cursor_bo = bo; | |
cda4b7d3 CW |
4378 | intel_crtc->cursor_width = width; |
4379 | intel_crtc->cursor_height = height; | |
4380 | ||
4381 | intel_crtc_update_cursor(crtc); | |
3f8bc370 | 4382 | |
79e53945 | 4383 | return 0; |
e7b526bb CW |
4384 | fail_unpin: |
4385 | i915_gem_object_unpin(bo); | |
7f9872e0 | 4386 | fail_locked: |
34b8686e | 4387 | mutex_unlock(&dev->struct_mutex); |
bc9025bd LB |
4388 | fail: |
4389 | drm_gem_object_unreference_unlocked(bo); | |
34b8686e | 4390 | return ret; |
79e53945 JB |
4391 | } |
4392 | ||
4393 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
4394 | { | |
79e53945 | 4395 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 4396 | |
cda4b7d3 CW |
4397 | intel_crtc->cursor_x = x; |
4398 | intel_crtc->cursor_y = y; | |
652c393a | 4399 | |
cda4b7d3 | 4400 | intel_crtc_update_cursor(crtc); |
79e53945 JB |
4401 | |
4402 | return 0; | |
4403 | } | |
4404 | ||
4405 | /** Sets the color ramps on behalf of RandR */ | |
4406 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
4407 | u16 blue, int regno) | |
4408 | { | |
4409 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4410 | ||
4411 | intel_crtc->lut_r[regno] = red >> 8; | |
4412 | intel_crtc->lut_g[regno] = green >> 8; | |
4413 | intel_crtc->lut_b[regno] = blue >> 8; | |
4414 | } | |
4415 | ||
b8c00ac5 DA |
4416 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
4417 | u16 *blue, int regno) | |
4418 | { | |
4419 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4420 | ||
4421 | *red = intel_crtc->lut_r[regno] << 8; | |
4422 | *green = intel_crtc->lut_g[regno] << 8; | |
4423 | *blue = intel_crtc->lut_b[regno] << 8; | |
4424 | } | |
4425 | ||
79e53945 JB |
4426 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
4427 | u16 *blue, uint32_t size) | |
4428 | { | |
4429 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4430 | int i; | |
4431 | ||
4432 | if (size != 256) | |
4433 | return; | |
4434 | ||
4435 | for (i = 0; i < 256; i++) { | |
4436 | intel_crtc->lut_r[i] = red[i] >> 8; | |
4437 | intel_crtc->lut_g[i] = green[i] >> 8; | |
4438 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
4439 | } | |
4440 | ||
4441 | intel_crtc_load_lut(crtc); | |
4442 | } | |
4443 | ||
4444 | /** | |
4445 | * Get a pipe with a simple mode set on it for doing load-based monitor | |
4446 | * detection. | |
4447 | * | |
4448 | * It will be up to the load-detect code to adjust the pipe as appropriate for | |
c751ce4f | 4449 | * its requirements. The pipe will be connected to no other encoders. |
79e53945 | 4450 | * |
c751ce4f | 4451 | * Currently this code will only succeed if there is a pipe with no encoders |
79e53945 JB |
4452 | * configured for it. In the future, it could choose to temporarily disable |
4453 | * some outputs to free up a pipe for its use. | |
4454 | * | |
4455 | * \return crtc, or NULL if no pipes are available. | |
4456 | */ | |
4457 | ||
4458 | /* VESA 640x480x72Hz mode to set on the pipe */ | |
4459 | static struct drm_display_mode load_detect_mode = { | |
4460 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
4461 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
4462 | }; | |
4463 | ||
21d40d37 | 4464 | struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, |
c1c43977 | 4465 | struct drm_connector *connector, |
79e53945 JB |
4466 | struct drm_display_mode *mode, |
4467 | int *dpms_mode) | |
4468 | { | |
4469 | struct intel_crtc *intel_crtc; | |
4470 | struct drm_crtc *possible_crtc; | |
4471 | struct drm_crtc *supported_crtc =NULL; | |
21d40d37 | 4472 | struct drm_encoder *encoder = &intel_encoder->enc; |
79e53945 JB |
4473 | struct drm_crtc *crtc = NULL; |
4474 | struct drm_device *dev = encoder->dev; | |
4475 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
4476 | struct drm_crtc_helper_funcs *crtc_funcs; | |
4477 | int i = -1; | |
4478 | ||
4479 | /* | |
4480 | * Algorithm gets a little messy: | |
4481 | * - if the connector already has an assigned crtc, use it (but make | |
4482 | * sure it's on first) | |
4483 | * - try to find the first unused crtc that can drive this connector, | |
4484 | * and use that if we find one | |
4485 | * - if there are no unused crtcs available, try to use the first | |
4486 | * one we found that supports the connector | |
4487 | */ | |
4488 | ||
4489 | /* See if we already have a CRTC for this connector */ | |
4490 | if (encoder->crtc) { | |
4491 | crtc = encoder->crtc; | |
4492 | /* Make sure the crtc and connector are running */ | |
4493 | intel_crtc = to_intel_crtc(crtc); | |
4494 | *dpms_mode = intel_crtc->dpms_mode; | |
4495 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { | |
4496 | crtc_funcs = crtc->helper_private; | |
4497 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
4498 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
4499 | } | |
4500 | return crtc; | |
4501 | } | |
4502 | ||
4503 | /* Find an unused one (if possible) */ | |
4504 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
4505 | i++; | |
4506 | if (!(encoder->possible_crtcs & (1 << i))) | |
4507 | continue; | |
4508 | if (!possible_crtc->enabled) { | |
4509 | crtc = possible_crtc; | |
4510 | break; | |
4511 | } | |
4512 | if (!supported_crtc) | |
4513 | supported_crtc = possible_crtc; | |
4514 | } | |
4515 | ||
4516 | /* | |
4517 | * If we didn't find an unused CRTC, don't use any. | |
4518 | */ | |
4519 | if (!crtc) { | |
4520 | return NULL; | |
4521 | } | |
4522 | ||
4523 | encoder->crtc = crtc; | |
c1c43977 | 4524 | connector->encoder = encoder; |
21d40d37 | 4525 | intel_encoder->load_detect_temp = true; |
79e53945 JB |
4526 | |
4527 | intel_crtc = to_intel_crtc(crtc); | |
4528 | *dpms_mode = intel_crtc->dpms_mode; | |
4529 | ||
4530 | if (!crtc->enabled) { | |
4531 | if (!mode) | |
4532 | mode = &load_detect_mode; | |
3c4fdcfb | 4533 | drm_crtc_helper_set_mode(crtc, mode, 0, 0, crtc->fb); |
79e53945 JB |
4534 | } else { |
4535 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { | |
4536 | crtc_funcs = crtc->helper_private; | |
4537 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
4538 | } | |
4539 | ||
4540 | /* Add this connector to the crtc */ | |
4541 | encoder_funcs->mode_set(encoder, &crtc->mode, &crtc->mode); | |
4542 | encoder_funcs->commit(encoder); | |
4543 | } | |
4544 | /* let the connector get through one full cycle before testing */ | |
9d0498a2 | 4545 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
79e53945 JB |
4546 | |
4547 | return crtc; | |
4548 | } | |
4549 | ||
c1c43977 ZW |
4550 | void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder, |
4551 | struct drm_connector *connector, int dpms_mode) | |
79e53945 | 4552 | { |
21d40d37 | 4553 | struct drm_encoder *encoder = &intel_encoder->enc; |
79e53945 JB |
4554 | struct drm_device *dev = encoder->dev; |
4555 | struct drm_crtc *crtc = encoder->crtc; | |
4556 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
4557 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
4558 | ||
21d40d37 | 4559 | if (intel_encoder->load_detect_temp) { |
79e53945 | 4560 | encoder->crtc = NULL; |
c1c43977 | 4561 | connector->encoder = NULL; |
21d40d37 | 4562 | intel_encoder->load_detect_temp = false; |
79e53945 JB |
4563 | crtc->enabled = drm_helper_crtc_in_use(crtc); |
4564 | drm_helper_disable_unused_functions(dev); | |
4565 | } | |
4566 | ||
c751ce4f | 4567 | /* Switch crtc and encoder back off if necessary */ |
79e53945 JB |
4568 | if (crtc->enabled && dpms_mode != DRM_MODE_DPMS_ON) { |
4569 | if (encoder->crtc == crtc) | |
4570 | encoder_funcs->dpms(encoder, dpms_mode); | |
4571 | crtc_funcs->dpms(crtc, dpms_mode); | |
4572 | } | |
4573 | } | |
4574 | ||
4575 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
4576 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
4577 | { | |
4578 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4579 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4580 | int pipe = intel_crtc->pipe; | |
4581 | u32 dpll = I915_READ((pipe == 0) ? DPLL_A : DPLL_B); | |
4582 | u32 fp; | |
4583 | intel_clock_t clock; | |
4584 | ||
4585 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
4586 | fp = I915_READ((pipe == 0) ? FPA0 : FPB0); | |
4587 | else | |
4588 | fp = I915_READ((pipe == 0) ? FPA1 : FPB1); | |
4589 | ||
4590 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
4591 | if (IS_PINEVIEW(dev)) { |
4592 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
4593 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
4594 | } else { |
4595 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
4596 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
4597 | } | |
4598 | ||
79e53945 | 4599 | if (IS_I9XX(dev)) { |
f2b115e6 AJ |
4600 | if (IS_PINEVIEW(dev)) |
4601 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
4602 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
4603 | else |
4604 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
4605 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
4606 | ||
4607 | switch (dpll & DPLL_MODE_MASK) { | |
4608 | case DPLLB_MODE_DAC_SERIAL: | |
4609 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
4610 | 5 : 10; | |
4611 | break; | |
4612 | case DPLLB_MODE_LVDS: | |
4613 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
4614 | 7 : 14; | |
4615 | break; | |
4616 | default: | |
28c97730 | 4617 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
4618 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
4619 | return 0; | |
4620 | } | |
4621 | ||
4622 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 4623 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
4624 | } else { |
4625 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
4626 | ||
4627 | if (is_lvds) { | |
4628 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
4629 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
4630 | clock.p2 = 14; | |
4631 | ||
4632 | if ((dpll & PLL_REF_INPUT_MASK) == | |
4633 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
4634 | /* XXX: might not be 66MHz */ | |
2177832f | 4635 | intel_clock(dev, 66000, &clock); |
79e53945 | 4636 | } else |
2177832f | 4637 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
4638 | } else { |
4639 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
4640 | clock.p1 = 2; | |
4641 | else { | |
4642 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
4643 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
4644 | } | |
4645 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
4646 | clock.p2 = 4; | |
4647 | else | |
4648 | clock.p2 = 2; | |
4649 | ||
2177832f | 4650 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
4651 | } |
4652 | } | |
4653 | ||
4654 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
4655 | * i830PllIsValid() because it relies on the xf86_config connector | |
4656 | * configuration being accurate, which it isn't necessarily. | |
4657 | */ | |
4658 | ||
4659 | return clock.dot; | |
4660 | } | |
4661 | ||
4662 | /** Returns the currently programmed mode of the given pipe. */ | |
4663 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
4664 | struct drm_crtc *crtc) | |
4665 | { | |
4666 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4667 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4668 | int pipe = intel_crtc->pipe; | |
4669 | struct drm_display_mode *mode; | |
4670 | int htot = I915_READ((pipe == 0) ? HTOTAL_A : HTOTAL_B); | |
4671 | int hsync = I915_READ((pipe == 0) ? HSYNC_A : HSYNC_B); | |
4672 | int vtot = I915_READ((pipe == 0) ? VTOTAL_A : VTOTAL_B); | |
4673 | int vsync = I915_READ((pipe == 0) ? VSYNC_A : VSYNC_B); | |
4674 | ||
4675 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
4676 | if (!mode) | |
4677 | return NULL; | |
4678 | ||
4679 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
4680 | mode->hdisplay = (htot & 0xffff) + 1; | |
4681 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
4682 | mode->hsync_start = (hsync & 0xffff) + 1; | |
4683 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
4684 | mode->vdisplay = (vtot & 0xffff) + 1; | |
4685 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
4686 | mode->vsync_start = (vsync & 0xffff) + 1; | |
4687 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
4688 | ||
4689 | drm_mode_set_name(mode); | |
4690 | drm_mode_set_crtcinfo(mode, 0); | |
4691 | ||
4692 | return mode; | |
4693 | } | |
4694 | ||
652c393a JB |
4695 | #define GPU_IDLE_TIMEOUT 500 /* ms */ |
4696 | ||
4697 | /* When this timer fires, we've been idle for awhile */ | |
4698 | static void intel_gpu_idle_timer(unsigned long arg) | |
4699 | { | |
4700 | struct drm_device *dev = (struct drm_device *)arg; | |
4701 | drm_i915_private_t *dev_priv = dev->dev_private; | |
4702 | ||
44d98a61 | 4703 | DRM_DEBUG_DRIVER("idle timer fired, downclocking\n"); |
652c393a JB |
4704 | |
4705 | dev_priv->busy = false; | |
4706 | ||
01dfba93 | 4707 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
652c393a JB |
4708 | } |
4709 | ||
652c393a JB |
4710 | #define CRTC_IDLE_TIMEOUT 1000 /* ms */ |
4711 | ||
4712 | static void intel_crtc_idle_timer(unsigned long arg) | |
4713 | { | |
4714 | struct intel_crtc *intel_crtc = (struct intel_crtc *)arg; | |
4715 | struct drm_crtc *crtc = &intel_crtc->base; | |
4716 | drm_i915_private_t *dev_priv = crtc->dev->dev_private; | |
4717 | ||
44d98a61 | 4718 | DRM_DEBUG_DRIVER("idle timer fired, downclocking\n"); |
652c393a JB |
4719 | |
4720 | intel_crtc->busy = false; | |
4721 | ||
01dfba93 | 4722 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
652c393a JB |
4723 | } |
4724 | ||
4725 | static void intel_increase_pllclock(struct drm_crtc *crtc, bool schedule) | |
4726 | { | |
4727 | struct drm_device *dev = crtc->dev; | |
4728 | drm_i915_private_t *dev_priv = dev->dev_private; | |
4729 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4730 | int pipe = intel_crtc->pipe; | |
4731 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; | |
4732 | int dpll = I915_READ(dpll_reg); | |
4733 | ||
bad720ff | 4734 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
4735 | return; |
4736 | ||
4737 | if (!dev_priv->lvds_downclock_avail) | |
4738 | return; | |
4739 | ||
4740 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { | |
44d98a61 | 4741 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a JB |
4742 | |
4743 | /* Unlock panel regs */ | |
4a655f04 JB |
4744 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | |
4745 | PANEL_UNLOCK_REGS); | |
652c393a JB |
4746 | |
4747 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
4748 | I915_WRITE(dpll_reg, dpll); | |
4749 | dpll = I915_READ(dpll_reg); | |
9d0498a2 | 4750 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
4751 | dpll = I915_READ(dpll_reg); |
4752 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 4753 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a JB |
4754 | |
4755 | /* ...and lock them again */ | |
4756 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); | |
4757 | } | |
4758 | ||
4759 | /* Schedule downclock */ | |
4760 | if (schedule) | |
4761 | mod_timer(&intel_crtc->idle_timer, jiffies + | |
4762 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
4763 | } | |
4764 | ||
4765 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
4766 | { | |
4767 | struct drm_device *dev = crtc->dev; | |
4768 | drm_i915_private_t *dev_priv = dev->dev_private; | |
4769 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4770 | int pipe = intel_crtc->pipe; | |
4771 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; | |
4772 | int dpll = I915_READ(dpll_reg); | |
4773 | ||
bad720ff | 4774 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
4775 | return; |
4776 | ||
4777 | if (!dev_priv->lvds_downclock_avail) | |
4778 | return; | |
4779 | ||
4780 | /* | |
4781 | * Since this is called by a timer, we should never get here in | |
4782 | * the manual case. | |
4783 | */ | |
4784 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
44d98a61 | 4785 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a JB |
4786 | |
4787 | /* Unlock panel regs */ | |
4a655f04 JB |
4788 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | |
4789 | PANEL_UNLOCK_REGS); | |
652c393a JB |
4790 | |
4791 | dpll |= DISPLAY_RATE_SELECT_FPA1; | |
4792 | I915_WRITE(dpll_reg, dpll); | |
4793 | dpll = I915_READ(dpll_reg); | |
9d0498a2 | 4794 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
4795 | dpll = I915_READ(dpll_reg); |
4796 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 4797 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
4798 | |
4799 | /* ...and lock them again */ | |
4800 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); | |
4801 | } | |
4802 | ||
4803 | } | |
4804 | ||
4805 | /** | |
4806 | * intel_idle_update - adjust clocks for idleness | |
4807 | * @work: work struct | |
4808 | * | |
4809 | * Either the GPU or display (or both) went idle. Check the busy status | |
4810 | * here and adjust the CRTC and GPU clocks as necessary. | |
4811 | */ | |
4812 | static void intel_idle_update(struct work_struct *work) | |
4813 | { | |
4814 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, | |
4815 | idle_work); | |
4816 | struct drm_device *dev = dev_priv->dev; | |
4817 | struct drm_crtc *crtc; | |
4818 | struct intel_crtc *intel_crtc; | |
45ac22c8 | 4819 | int enabled = 0; |
652c393a JB |
4820 | |
4821 | if (!i915_powersave) | |
4822 | return; | |
4823 | ||
4824 | mutex_lock(&dev->struct_mutex); | |
4825 | ||
7648fa99 JB |
4826 | i915_update_gfx_val(dev_priv); |
4827 | ||
652c393a JB |
4828 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
4829 | /* Skip inactive CRTCs */ | |
4830 | if (!crtc->fb) | |
4831 | continue; | |
4832 | ||
45ac22c8 | 4833 | enabled++; |
652c393a JB |
4834 | intel_crtc = to_intel_crtc(crtc); |
4835 | if (!intel_crtc->busy) | |
4836 | intel_decrease_pllclock(crtc); | |
4837 | } | |
4838 | ||
45ac22c8 LP |
4839 | if ((enabled == 1) && (IS_I945G(dev) || IS_I945GM(dev))) { |
4840 | DRM_DEBUG_DRIVER("enable memory self refresh on 945\n"); | |
4841 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN); | |
4842 | } | |
4843 | ||
652c393a JB |
4844 | mutex_unlock(&dev->struct_mutex); |
4845 | } | |
4846 | ||
4847 | /** | |
4848 | * intel_mark_busy - mark the GPU and possibly the display busy | |
4849 | * @dev: drm device | |
4850 | * @obj: object we're operating on | |
4851 | * | |
4852 | * Callers can use this function to indicate that the GPU is busy processing | |
4853 | * commands. If @obj matches one of the CRTC objects (i.e. it's a scanout | |
4854 | * buffer), we'll also mark the display as busy, so we know to increase its | |
4855 | * clock frequency. | |
4856 | */ | |
4857 | void intel_mark_busy(struct drm_device *dev, struct drm_gem_object *obj) | |
4858 | { | |
4859 | drm_i915_private_t *dev_priv = dev->dev_private; | |
4860 | struct drm_crtc *crtc = NULL; | |
4861 | struct intel_framebuffer *intel_fb; | |
4862 | struct intel_crtc *intel_crtc; | |
4863 | ||
5e17ee74 ZW |
4864 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4865 | return; | |
4866 | ||
060e645a LP |
4867 | if (!dev_priv->busy) { |
4868 | if (IS_I945G(dev) || IS_I945GM(dev)) { | |
4869 | u32 fw_blc_self; | |
ee980b80 | 4870 | |
060e645a LP |
4871 | DRM_DEBUG_DRIVER("disable memory self refresh on 945\n"); |
4872 | fw_blc_self = I915_READ(FW_BLC_SELF); | |
4873 | fw_blc_self &= ~FW_BLC_SELF_EN; | |
4874 | I915_WRITE(FW_BLC_SELF, fw_blc_self | FW_BLC_SELF_EN_MASK); | |
4875 | } | |
28cf798f | 4876 | dev_priv->busy = true; |
060e645a | 4877 | } else |
28cf798f CW |
4878 | mod_timer(&dev_priv->idle_timer, jiffies + |
4879 | msecs_to_jiffies(GPU_IDLE_TIMEOUT)); | |
652c393a JB |
4880 | |
4881 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
4882 | if (!crtc->fb) | |
4883 | continue; | |
4884 | ||
4885 | intel_crtc = to_intel_crtc(crtc); | |
4886 | intel_fb = to_intel_framebuffer(crtc->fb); | |
4887 | if (intel_fb->obj == obj) { | |
4888 | if (!intel_crtc->busy) { | |
060e645a LP |
4889 | if (IS_I945G(dev) || IS_I945GM(dev)) { |
4890 | u32 fw_blc_self; | |
4891 | ||
4892 | DRM_DEBUG_DRIVER("disable memory self refresh on 945\n"); | |
4893 | fw_blc_self = I915_READ(FW_BLC_SELF); | |
4894 | fw_blc_self &= ~FW_BLC_SELF_EN; | |
4895 | I915_WRITE(FW_BLC_SELF, fw_blc_self | FW_BLC_SELF_EN_MASK); | |
4896 | } | |
652c393a JB |
4897 | /* Non-busy -> busy, upclock */ |
4898 | intel_increase_pllclock(crtc, true); | |
4899 | intel_crtc->busy = true; | |
4900 | } else { | |
4901 | /* Busy -> busy, put off timer */ | |
4902 | mod_timer(&intel_crtc->idle_timer, jiffies + | |
4903 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
4904 | } | |
4905 | } | |
4906 | } | |
4907 | } | |
4908 | ||
79e53945 JB |
4909 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
4910 | { | |
4911 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4912 | ||
4913 | drm_crtc_cleanup(crtc); | |
4914 | kfree(intel_crtc); | |
4915 | } | |
4916 | ||
6b95a207 KH |
4917 | struct intel_unpin_work { |
4918 | struct work_struct work; | |
4919 | struct drm_device *dev; | |
b1b87f6b JB |
4920 | struct drm_gem_object *old_fb_obj; |
4921 | struct drm_gem_object *pending_flip_obj; | |
6b95a207 KH |
4922 | struct drm_pending_vblank_event *event; |
4923 | int pending; | |
4924 | }; | |
4925 | ||
4926 | static void intel_unpin_work_fn(struct work_struct *__work) | |
4927 | { | |
4928 | struct intel_unpin_work *work = | |
4929 | container_of(__work, struct intel_unpin_work, work); | |
4930 | ||
4931 | mutex_lock(&work->dev->struct_mutex); | |
b1b87f6b | 4932 | i915_gem_object_unpin(work->old_fb_obj); |
75dfca80 | 4933 | drm_gem_object_unreference(work->pending_flip_obj); |
b1b87f6b | 4934 | drm_gem_object_unreference(work->old_fb_obj); |
6b95a207 KH |
4935 | mutex_unlock(&work->dev->struct_mutex); |
4936 | kfree(work); | |
4937 | } | |
4938 | ||
1afe3e9d JB |
4939 | static void do_intel_finish_page_flip(struct drm_device *dev, |
4940 | struct drm_crtc *crtc) | |
6b95a207 KH |
4941 | { |
4942 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6b95a207 KH |
4943 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4944 | struct intel_unpin_work *work; | |
4945 | struct drm_i915_gem_object *obj_priv; | |
4946 | struct drm_pending_vblank_event *e; | |
4947 | struct timeval now; | |
4948 | unsigned long flags; | |
4949 | ||
4950 | /* Ignore early vblank irqs */ | |
4951 | if (intel_crtc == NULL) | |
4952 | return; | |
4953 | ||
4954 | spin_lock_irqsave(&dev->event_lock, flags); | |
4955 | work = intel_crtc->unpin_work; | |
4956 | if (work == NULL || !work->pending) { | |
4957 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4958 | return; | |
4959 | } | |
4960 | ||
4961 | intel_crtc->unpin_work = NULL; | |
4962 | drm_vblank_put(dev, intel_crtc->pipe); | |
4963 | ||
4964 | if (work->event) { | |
4965 | e = work->event; | |
4966 | do_gettimeofday(&now); | |
4967 | e->event.sequence = drm_vblank_count(dev, intel_crtc->pipe); | |
4968 | e->event.tv_sec = now.tv_sec; | |
4969 | e->event.tv_usec = now.tv_usec; | |
4970 | list_add_tail(&e->base.link, | |
4971 | &e->base.file_priv->event_list); | |
4972 | wake_up_interruptible(&e->base.file_priv->event_wait); | |
4973 | } | |
4974 | ||
4975 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4976 | ||
23010e43 | 4977 | obj_priv = to_intel_bo(work->pending_flip_obj); |
de3f440f JB |
4978 | |
4979 | /* Initial scanout buffer will have a 0 pending flip count */ | |
4980 | if ((atomic_read(&obj_priv->pending_flip) == 0) || | |
4981 | atomic_dec_and_test(&obj_priv->pending_flip)) | |
6b95a207 KH |
4982 | DRM_WAKEUP(&dev_priv->pending_flip_queue); |
4983 | schedule_work(&work->work); | |
e5510fac JB |
4984 | |
4985 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); | |
6b95a207 KH |
4986 | } |
4987 | ||
1afe3e9d JB |
4988 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
4989 | { | |
4990 | drm_i915_private_t *dev_priv = dev->dev_private; | |
4991 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
4992 | ||
4993 | do_intel_finish_page_flip(dev, crtc); | |
4994 | } | |
4995 | ||
4996 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
4997 | { | |
4998 | drm_i915_private_t *dev_priv = dev->dev_private; | |
4999 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; | |
5000 | ||
5001 | do_intel_finish_page_flip(dev, crtc); | |
5002 | } | |
5003 | ||
6b95a207 KH |
5004 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
5005 | { | |
5006 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5007 | struct intel_crtc *intel_crtc = | |
5008 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
5009 | unsigned long flags; | |
5010 | ||
5011 | spin_lock_irqsave(&dev->event_lock, flags); | |
de3f440f | 5012 | if (intel_crtc->unpin_work) { |
6b95a207 | 5013 | intel_crtc->unpin_work->pending = 1; |
de3f440f JB |
5014 | } else { |
5015 | DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n"); | |
5016 | } | |
6b95a207 KH |
5017 | spin_unlock_irqrestore(&dev->event_lock, flags); |
5018 | } | |
5019 | ||
5020 | static int intel_crtc_page_flip(struct drm_crtc *crtc, | |
5021 | struct drm_framebuffer *fb, | |
5022 | struct drm_pending_vblank_event *event) | |
5023 | { | |
5024 | struct drm_device *dev = crtc->dev; | |
5025 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5026 | struct intel_framebuffer *intel_fb; | |
5027 | struct drm_i915_gem_object *obj_priv; | |
5028 | struct drm_gem_object *obj; | |
5029 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5030 | struct intel_unpin_work *work; | |
be9a3dbf | 5031 | unsigned long flags, offset; |
aacef09b ZW |
5032 | int pipesrc_reg = (intel_crtc->pipe == 0) ? PIPEASRC : PIPEBSRC; |
5033 | int ret, pipesrc; | |
83f7fd05 | 5034 | u32 flip_mask; |
6b95a207 KH |
5035 | |
5036 | work = kzalloc(sizeof *work, GFP_KERNEL); | |
5037 | if (work == NULL) | |
5038 | return -ENOMEM; | |
5039 | ||
6b95a207 KH |
5040 | work->event = event; |
5041 | work->dev = crtc->dev; | |
5042 | intel_fb = to_intel_framebuffer(crtc->fb); | |
b1b87f6b | 5043 | work->old_fb_obj = intel_fb->obj; |
6b95a207 KH |
5044 | INIT_WORK(&work->work, intel_unpin_work_fn); |
5045 | ||
5046 | /* We borrow the event spin lock for protecting unpin_work */ | |
5047 | spin_lock_irqsave(&dev->event_lock, flags); | |
5048 | if (intel_crtc->unpin_work) { | |
5049 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
5050 | kfree(work); | |
468f0b44 CW |
5051 | |
5052 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
6b95a207 KH |
5053 | return -EBUSY; |
5054 | } | |
5055 | intel_crtc->unpin_work = work; | |
5056 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
5057 | ||
5058 | intel_fb = to_intel_framebuffer(fb); | |
5059 | obj = intel_fb->obj; | |
5060 | ||
468f0b44 | 5061 | mutex_lock(&dev->struct_mutex); |
6b95a207 | 5062 | ret = intel_pin_and_fence_fb_obj(dev, obj); |
96b099fd CW |
5063 | if (ret) |
5064 | goto cleanup_work; | |
6b95a207 | 5065 | |
75dfca80 | 5066 | /* Reference the objects for the scheduled work. */ |
b1b87f6b | 5067 | drm_gem_object_reference(work->old_fb_obj); |
75dfca80 | 5068 | drm_gem_object_reference(obj); |
6b95a207 KH |
5069 | |
5070 | crtc->fb = fb; | |
2dafb1e0 CW |
5071 | ret = i915_gem_object_flush_write_domain(obj); |
5072 | if (ret) | |
5073 | goto cleanup_objs; | |
96b099fd CW |
5074 | |
5075 | ret = drm_vblank_get(dev, intel_crtc->pipe); | |
5076 | if (ret) | |
5077 | goto cleanup_objs; | |
5078 | ||
23010e43 | 5079 | obj_priv = to_intel_bo(obj); |
6b95a207 | 5080 | atomic_inc(&obj_priv->pending_flip); |
b1b87f6b | 5081 | work->pending_flip_obj = obj; |
6b95a207 | 5082 | |
83f7fd05 | 5083 | if (intel_crtc->plane) |
6146b3d6 | 5084 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; |
83f7fd05 | 5085 | else |
6146b3d6 | 5086 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; |
83f7fd05 | 5087 | |
6146b3d6 DV |
5088 | if (IS_GEN3(dev) || IS_GEN2(dev)) { |
5089 | BEGIN_LP_RING(2); | |
5090 | OUT_RING(MI_WAIT_FOR_EVENT | flip_mask); | |
5091 | OUT_RING(0); | |
5092 | ADVANCE_LP_RING(); | |
5093 | } | |
83f7fd05 | 5094 | |
be9a3dbf JB |
5095 | /* Offset into the new buffer for cases of shared fbs between CRTCs */ |
5096 | offset = obj_priv->gtt_offset; | |
5097 | offset += (crtc->y * fb->pitch) + (crtc->x * (fb->bits_per_pixel) / 8); | |
5098 | ||
6b95a207 | 5099 | BEGIN_LP_RING(4); |
22fd0fab | 5100 | if (IS_I965G(dev)) { |
1afe3e9d JB |
5101 | OUT_RING(MI_DISPLAY_FLIP | |
5102 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
5103 | OUT_RING(fb->pitch); | |
be9a3dbf | 5104 | OUT_RING(offset | obj_priv->tiling_mode); |
aacef09b ZW |
5105 | pipesrc = I915_READ(pipesrc_reg); |
5106 | OUT_RING(pipesrc & 0x0fff0fff); | |
69d0b96c | 5107 | } else if (IS_GEN3(dev)) { |
1afe3e9d JB |
5108 | OUT_RING(MI_DISPLAY_FLIP_I915 | |
5109 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
5110 | OUT_RING(fb->pitch); | |
be9a3dbf | 5111 | OUT_RING(offset); |
22fd0fab | 5112 | OUT_RING(MI_NOOP); |
69d0b96c DV |
5113 | } else { |
5114 | OUT_RING(MI_DISPLAY_FLIP | | |
5115 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
5116 | OUT_RING(fb->pitch); | |
5117 | OUT_RING(offset); | |
5118 | OUT_RING(MI_NOOP); | |
22fd0fab | 5119 | } |
6b95a207 KH |
5120 | ADVANCE_LP_RING(); |
5121 | ||
5122 | mutex_unlock(&dev->struct_mutex); | |
5123 | ||
e5510fac JB |
5124 | trace_i915_flip_request(intel_crtc->plane, obj); |
5125 | ||
6b95a207 | 5126 | return 0; |
96b099fd CW |
5127 | |
5128 | cleanup_objs: | |
5129 | drm_gem_object_unreference(work->old_fb_obj); | |
5130 | drm_gem_object_unreference(obj); | |
5131 | cleanup_work: | |
5132 | mutex_unlock(&dev->struct_mutex); | |
5133 | ||
5134 | spin_lock_irqsave(&dev->event_lock, flags); | |
5135 | intel_crtc->unpin_work = NULL; | |
5136 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
5137 | ||
5138 | kfree(work); | |
5139 | ||
5140 | return ret; | |
6b95a207 KH |
5141 | } |
5142 | ||
79e53945 JB |
5143 | static const struct drm_crtc_helper_funcs intel_helper_funcs = { |
5144 | .dpms = intel_crtc_dpms, | |
5145 | .mode_fixup = intel_crtc_mode_fixup, | |
5146 | .mode_set = intel_crtc_mode_set, | |
5147 | .mode_set_base = intel_pipe_set_base, | |
81255565 | 5148 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
79e53945 JB |
5149 | .prepare = intel_crtc_prepare, |
5150 | .commit = intel_crtc_commit, | |
068143d3 | 5151 | .load_lut = intel_crtc_load_lut, |
79e53945 JB |
5152 | }; |
5153 | ||
5154 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
5155 | .cursor_set = intel_crtc_cursor_set, | |
5156 | .cursor_move = intel_crtc_cursor_move, | |
5157 | .gamma_set = intel_crtc_gamma_set, | |
5158 | .set_config = drm_crtc_helper_set_config, | |
5159 | .destroy = intel_crtc_destroy, | |
6b95a207 | 5160 | .page_flip = intel_crtc_page_flip, |
79e53945 JB |
5161 | }; |
5162 | ||
5163 | ||
b358d0a6 | 5164 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 5165 | { |
22fd0fab | 5166 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
5167 | struct intel_crtc *intel_crtc; |
5168 | int i; | |
5169 | ||
5170 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
5171 | if (intel_crtc == NULL) | |
5172 | return; | |
5173 | ||
5174 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
5175 | ||
5176 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
5177 | intel_crtc->pipe = pipe; | |
7662c8bd | 5178 | intel_crtc->plane = pipe; |
79e53945 JB |
5179 | for (i = 0; i < 256; i++) { |
5180 | intel_crtc->lut_r[i] = i; | |
5181 | intel_crtc->lut_g[i] = i; | |
5182 | intel_crtc->lut_b[i] = i; | |
5183 | } | |
5184 | ||
80824003 JB |
5185 | /* Swap pipes & planes for FBC on pre-965 */ |
5186 | intel_crtc->pipe = pipe; | |
5187 | intel_crtc->plane = pipe; | |
5188 | if (IS_MOBILE(dev) && (IS_I9XX(dev) && !IS_I965G(dev))) { | |
28c97730 | 5189 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
80824003 JB |
5190 | intel_crtc->plane = ((pipe == 0) ? 1 : 0); |
5191 | } | |
5192 | ||
22fd0fab JB |
5193 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
5194 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
5195 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
5196 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
5197 | ||
79e53945 JB |
5198 | intel_crtc->cursor_addr = 0; |
5199 | intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF; | |
5200 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); | |
5201 | ||
652c393a JB |
5202 | intel_crtc->busy = false; |
5203 | ||
5204 | setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer, | |
5205 | (unsigned long)intel_crtc); | |
79e53945 JB |
5206 | } |
5207 | ||
08d7b3d1 CW |
5208 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
5209 | struct drm_file *file_priv) | |
5210 | { | |
5211 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5212 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; | |
c05422d5 DV |
5213 | struct drm_mode_object *drmmode_obj; |
5214 | struct intel_crtc *crtc; | |
08d7b3d1 CW |
5215 | |
5216 | if (!dev_priv) { | |
5217 | DRM_ERROR("called with no initialization\n"); | |
5218 | return -EINVAL; | |
5219 | } | |
5220 | ||
c05422d5 DV |
5221 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
5222 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 5223 | |
c05422d5 | 5224 | if (!drmmode_obj) { |
08d7b3d1 CW |
5225 | DRM_ERROR("no such CRTC id\n"); |
5226 | return -EINVAL; | |
5227 | } | |
5228 | ||
c05422d5 DV |
5229 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
5230 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 5231 | |
c05422d5 | 5232 | return 0; |
08d7b3d1 CW |
5233 | } |
5234 | ||
79e53945 JB |
5235 | struct drm_crtc *intel_get_crtc_from_pipe(struct drm_device *dev, int pipe) |
5236 | { | |
5237 | struct drm_crtc *crtc = NULL; | |
5238 | ||
5239 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
5240 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5241 | if (intel_crtc->pipe == pipe) | |
5242 | break; | |
5243 | } | |
5244 | return crtc; | |
5245 | } | |
5246 | ||
c5e4df33 | 5247 | static int intel_encoder_clones(struct drm_device *dev, int type_mask) |
79e53945 JB |
5248 | { |
5249 | int index_mask = 0; | |
c5e4df33 | 5250 | struct drm_encoder *encoder; |
79e53945 JB |
5251 | int entry = 0; |
5252 | ||
c5e4df33 ZW |
5253 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
5254 | struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder); | |
21d40d37 | 5255 | if (type_mask & intel_encoder->clone_mask) |
79e53945 JB |
5256 | index_mask |= (1 << entry); |
5257 | entry++; | |
5258 | } | |
5259 | return index_mask; | |
5260 | } | |
5261 | ||
5262 | ||
5263 | static void intel_setup_outputs(struct drm_device *dev) | |
5264 | { | |
725e30ad | 5265 | struct drm_i915_private *dev_priv = dev->dev_private; |
c5e4df33 | 5266 | struct drm_encoder *encoder; |
cb0953d7 | 5267 | bool dpd_is_edp = false; |
79e53945 | 5268 | |
541998a1 | 5269 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
79e53945 JB |
5270 | intel_lvds_init(dev); |
5271 | ||
bad720ff | 5272 | if (HAS_PCH_SPLIT(dev)) { |
cb0953d7 | 5273 | dpd_is_edp = intel_dpd_is_edp(dev); |
30ad48b7 | 5274 | |
32f9d658 ZW |
5275 | if (IS_MOBILE(dev) && (I915_READ(DP_A) & DP_DETECTED)) |
5276 | intel_dp_init(dev, DP_A); | |
5277 | ||
cb0953d7 AJ |
5278 | if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
5279 | intel_dp_init(dev, PCH_DP_D); | |
5280 | } | |
5281 | ||
5282 | intel_crt_init(dev); | |
5283 | ||
5284 | if (HAS_PCH_SPLIT(dev)) { | |
5285 | int found; | |
5286 | ||
30ad48b7 | 5287 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
461ed3ca ZY |
5288 | /* PCH SDVOB multiplex with HDMIB */ |
5289 | found = intel_sdvo_init(dev, PCH_SDVOB); | |
30ad48b7 ZW |
5290 | if (!found) |
5291 | intel_hdmi_init(dev, HDMIB); | |
5eb08b69 ZW |
5292 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
5293 | intel_dp_init(dev, PCH_DP_B); | |
30ad48b7 ZW |
5294 | } |
5295 | ||
5296 | if (I915_READ(HDMIC) & PORT_DETECTED) | |
5297 | intel_hdmi_init(dev, HDMIC); | |
5298 | ||
5299 | if (I915_READ(HDMID) & PORT_DETECTED) | |
5300 | intel_hdmi_init(dev, HDMID); | |
5301 | ||
5eb08b69 ZW |
5302 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
5303 | intel_dp_init(dev, PCH_DP_C); | |
5304 | ||
cb0953d7 | 5305 | if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
5eb08b69 ZW |
5306 | intel_dp_init(dev, PCH_DP_D); |
5307 | ||
103a196f | 5308 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 5309 | bool found = false; |
7d57382e | 5310 | |
725e30ad | 5311 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 5312 | DRM_DEBUG_KMS("probing SDVOB\n"); |
725e30ad | 5313 | found = intel_sdvo_init(dev, SDVOB); |
b01f2c3a JB |
5314 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
5315 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
725e30ad | 5316 | intel_hdmi_init(dev, SDVOB); |
b01f2c3a | 5317 | } |
27185ae1 | 5318 | |
b01f2c3a JB |
5319 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
5320 | DRM_DEBUG_KMS("probing DP_B\n"); | |
a4fc5ed6 | 5321 | intel_dp_init(dev, DP_B); |
b01f2c3a | 5322 | } |
725e30ad | 5323 | } |
13520b05 KH |
5324 | |
5325 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 5326 | |
b01f2c3a JB |
5327 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
5328 | DRM_DEBUG_KMS("probing SDVOC\n"); | |
725e30ad | 5329 | found = intel_sdvo_init(dev, SDVOC); |
b01f2c3a | 5330 | } |
27185ae1 ML |
5331 | |
5332 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { | |
5333 | ||
b01f2c3a JB |
5334 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
5335 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
725e30ad | 5336 | intel_hdmi_init(dev, SDVOC); |
b01f2c3a JB |
5337 | } |
5338 | if (SUPPORTS_INTEGRATED_DP(dev)) { | |
5339 | DRM_DEBUG_KMS("probing DP_C\n"); | |
a4fc5ed6 | 5340 | intel_dp_init(dev, DP_C); |
b01f2c3a | 5341 | } |
725e30ad | 5342 | } |
27185ae1 | 5343 | |
b01f2c3a JB |
5344 | if (SUPPORTS_INTEGRATED_DP(dev) && |
5345 | (I915_READ(DP_D) & DP_DETECTED)) { | |
5346 | DRM_DEBUG_KMS("probing DP_D\n"); | |
a4fc5ed6 | 5347 | intel_dp_init(dev, DP_D); |
b01f2c3a | 5348 | } |
bad720ff | 5349 | } else if (IS_GEN2(dev)) |
79e53945 JB |
5350 | intel_dvo_init(dev); |
5351 | ||
103a196f | 5352 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
5353 | intel_tv_init(dev); |
5354 | ||
c5e4df33 ZW |
5355 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
5356 | struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder); | |
79e53945 | 5357 | |
21d40d37 | 5358 | encoder->possible_crtcs = intel_encoder->crtc_mask; |
c5e4df33 | 5359 | encoder->possible_clones = intel_encoder_clones(dev, |
21d40d37 | 5360 | intel_encoder->clone_mask); |
79e53945 JB |
5361 | } |
5362 | } | |
5363 | ||
5364 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
5365 | { | |
5366 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
79e53945 JB |
5367 | |
5368 | drm_framebuffer_cleanup(fb); | |
bc9025bd | 5369 | drm_gem_object_unreference_unlocked(intel_fb->obj); |
79e53945 JB |
5370 | |
5371 | kfree(intel_fb); | |
5372 | } | |
5373 | ||
5374 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
5375 | struct drm_file *file_priv, | |
5376 | unsigned int *handle) | |
5377 | { | |
5378 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
5379 | struct drm_gem_object *object = intel_fb->obj; | |
5380 | ||
5381 | return drm_gem_handle_create(file_priv, object, handle); | |
5382 | } | |
5383 | ||
5384 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
5385 | .destroy = intel_user_framebuffer_destroy, | |
5386 | .create_handle = intel_user_framebuffer_create_handle, | |
5387 | }; | |
5388 | ||
38651674 DA |
5389 | int intel_framebuffer_init(struct drm_device *dev, |
5390 | struct intel_framebuffer *intel_fb, | |
5391 | struct drm_mode_fb_cmd *mode_cmd, | |
5392 | struct drm_gem_object *obj) | |
79e53945 | 5393 | { |
79e53945 JB |
5394 | int ret; |
5395 | ||
79e53945 JB |
5396 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
5397 | if (ret) { | |
5398 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
5399 | return ret; | |
5400 | } | |
5401 | ||
5402 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); | |
79e53945 | 5403 | intel_fb->obj = obj; |
79e53945 JB |
5404 | return 0; |
5405 | } | |
5406 | ||
79e53945 JB |
5407 | static struct drm_framebuffer * |
5408 | intel_user_framebuffer_create(struct drm_device *dev, | |
5409 | struct drm_file *filp, | |
5410 | struct drm_mode_fb_cmd *mode_cmd) | |
5411 | { | |
5412 | struct drm_gem_object *obj; | |
38651674 | 5413 | struct intel_framebuffer *intel_fb; |
79e53945 JB |
5414 | int ret; |
5415 | ||
5416 | obj = drm_gem_object_lookup(dev, filp, mode_cmd->handle); | |
5417 | if (!obj) | |
5418 | return NULL; | |
5419 | ||
38651674 DA |
5420 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
5421 | if (!intel_fb) | |
5422 | return NULL; | |
5423 | ||
5424 | ret = intel_framebuffer_init(dev, intel_fb, | |
5425 | mode_cmd, obj); | |
79e53945 | 5426 | if (ret) { |
bc9025bd | 5427 | drm_gem_object_unreference_unlocked(obj); |
38651674 | 5428 | kfree(intel_fb); |
79e53945 JB |
5429 | return NULL; |
5430 | } | |
5431 | ||
38651674 | 5432 | return &intel_fb->base; |
79e53945 JB |
5433 | } |
5434 | ||
79e53945 | 5435 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 5436 | .fb_create = intel_user_framebuffer_create, |
eb1f8e4f | 5437 | .output_poll_changed = intel_fb_output_poll_changed, |
79e53945 JB |
5438 | }; |
5439 | ||
9ea8d059 | 5440 | static struct drm_gem_object * |
aa40d6bb | 5441 | intel_alloc_context_page(struct drm_device *dev) |
9ea8d059 | 5442 | { |
aa40d6bb | 5443 | struct drm_gem_object *ctx; |
9ea8d059 CW |
5444 | int ret; |
5445 | ||
aa40d6bb ZN |
5446 | ctx = i915_gem_alloc_object(dev, 4096); |
5447 | if (!ctx) { | |
9ea8d059 CW |
5448 | DRM_DEBUG("failed to alloc power context, RC6 disabled\n"); |
5449 | return NULL; | |
5450 | } | |
5451 | ||
5452 | mutex_lock(&dev->struct_mutex); | |
aa40d6bb | 5453 | ret = i915_gem_object_pin(ctx, 4096); |
9ea8d059 CW |
5454 | if (ret) { |
5455 | DRM_ERROR("failed to pin power context: %d\n", ret); | |
5456 | goto err_unref; | |
5457 | } | |
5458 | ||
aa40d6bb | 5459 | ret = i915_gem_object_set_to_gtt_domain(ctx, 1); |
9ea8d059 CW |
5460 | if (ret) { |
5461 | DRM_ERROR("failed to set-domain on power context: %d\n", ret); | |
5462 | goto err_unpin; | |
5463 | } | |
5464 | mutex_unlock(&dev->struct_mutex); | |
5465 | ||
aa40d6bb | 5466 | return ctx; |
9ea8d059 CW |
5467 | |
5468 | err_unpin: | |
aa40d6bb | 5469 | i915_gem_object_unpin(ctx); |
9ea8d059 | 5470 | err_unref: |
aa40d6bb | 5471 | drm_gem_object_unreference(ctx); |
9ea8d059 CW |
5472 | mutex_unlock(&dev->struct_mutex); |
5473 | return NULL; | |
5474 | } | |
5475 | ||
7648fa99 JB |
5476 | bool ironlake_set_drps(struct drm_device *dev, u8 val) |
5477 | { | |
5478 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5479 | u16 rgvswctl; | |
5480 | ||
5481 | rgvswctl = I915_READ16(MEMSWCTL); | |
5482 | if (rgvswctl & MEMCTL_CMD_STS) { | |
5483 | DRM_DEBUG("gpu busy, RCS change rejected\n"); | |
5484 | return false; /* still busy with another command */ | |
5485 | } | |
5486 | ||
5487 | rgvswctl = (MEMCTL_CMD_CHFREQ << MEMCTL_CMD_SHIFT) | | |
5488 | (val << MEMCTL_FREQ_SHIFT) | MEMCTL_SFCAVM; | |
5489 | I915_WRITE16(MEMSWCTL, rgvswctl); | |
5490 | POSTING_READ16(MEMSWCTL); | |
5491 | ||
5492 | rgvswctl |= MEMCTL_CMD_STS; | |
5493 | I915_WRITE16(MEMSWCTL, rgvswctl); | |
5494 | ||
5495 | return true; | |
5496 | } | |
5497 | ||
f97108d1 JB |
5498 | void ironlake_enable_drps(struct drm_device *dev) |
5499 | { | |
5500 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7648fa99 | 5501 | u32 rgvmodectl = I915_READ(MEMMODECTL); |
f97108d1 | 5502 | u8 fmax, fmin, fstart, vstart; |
f97108d1 JB |
5503 | |
5504 | /* 100ms RC evaluation intervals */ | |
5505 | I915_WRITE(RCUPEI, 100000); | |
5506 | I915_WRITE(RCDNEI, 100000); | |
5507 | ||
5508 | /* Set max/min thresholds to 90ms and 80ms respectively */ | |
5509 | I915_WRITE(RCBMAXAVG, 90000); | |
5510 | I915_WRITE(RCBMINAVG, 80000); | |
5511 | ||
5512 | I915_WRITE(MEMIHYST, 1); | |
5513 | ||
5514 | /* Set up min, max, and cur for interrupt handling */ | |
5515 | fmax = (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT; | |
5516 | fmin = (rgvmodectl & MEMMODE_FMIN_MASK); | |
5517 | fstart = (rgvmodectl & MEMMODE_FSTART_MASK) >> | |
5518 | MEMMODE_FSTART_SHIFT; | |
7648fa99 JB |
5519 | fstart = fmax; |
5520 | ||
f97108d1 JB |
5521 | vstart = (I915_READ(PXVFREQ_BASE + (fstart * 4)) & PXVFREQ_PX_MASK) >> |
5522 | PXVFREQ_PX_SHIFT; | |
5523 | ||
7648fa99 JB |
5524 | dev_priv->fmax = fstart; /* IPS callback will increase this */ |
5525 | dev_priv->fstart = fstart; | |
5526 | ||
5527 | dev_priv->max_delay = fmax; | |
f97108d1 JB |
5528 | dev_priv->min_delay = fmin; |
5529 | dev_priv->cur_delay = fstart; | |
5530 | ||
7648fa99 JB |
5531 | DRM_DEBUG_DRIVER("fmax: %d, fmin: %d, fstart: %d\n", fmax, fmin, |
5532 | fstart); | |
5533 | ||
f97108d1 JB |
5534 | I915_WRITE(MEMINTREN, MEMINT_CX_SUPR_EN | MEMINT_EVAL_CHG_EN); |
5535 | ||
5536 | /* | |
5537 | * Interrupts will be enabled in ironlake_irq_postinstall | |
5538 | */ | |
5539 | ||
5540 | I915_WRITE(VIDSTART, vstart); | |
5541 | POSTING_READ(VIDSTART); | |
5542 | ||
5543 | rgvmodectl |= MEMMODE_SWMODE_EN; | |
5544 | I915_WRITE(MEMMODECTL, rgvmodectl); | |
5545 | ||
913d8d11 CW |
5546 | if (wait_for((I915_READ(MEMSWCTL) & MEMCTL_CMD_STS) == 0, 1, 0)) |
5547 | DRM_ERROR("stuck trying to change perf mode\n"); | |
f97108d1 JB |
5548 | msleep(1); |
5549 | ||
7648fa99 | 5550 | ironlake_set_drps(dev, fstart); |
f97108d1 | 5551 | |
7648fa99 JB |
5552 | dev_priv->last_count1 = I915_READ(0x112e4) + I915_READ(0x112e8) + |
5553 | I915_READ(0x112e0); | |
5554 | dev_priv->last_time1 = jiffies_to_msecs(jiffies); | |
5555 | dev_priv->last_count2 = I915_READ(0x112f4); | |
5556 | getrawmonotonic(&dev_priv->last_time2); | |
f97108d1 JB |
5557 | } |
5558 | ||
5559 | void ironlake_disable_drps(struct drm_device *dev) | |
5560 | { | |
5561 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7648fa99 | 5562 | u16 rgvswctl = I915_READ16(MEMSWCTL); |
f97108d1 JB |
5563 | |
5564 | /* Ack interrupts, disable EFC interrupt */ | |
5565 | I915_WRITE(MEMINTREN, I915_READ(MEMINTREN) & ~MEMINT_EVAL_CHG_EN); | |
5566 | I915_WRITE(MEMINTRSTS, MEMINT_EVAL_CHG); | |
5567 | I915_WRITE(DEIER, I915_READ(DEIER) & ~DE_PCU_EVENT); | |
5568 | I915_WRITE(DEIIR, DE_PCU_EVENT); | |
5569 | I915_WRITE(DEIMR, I915_READ(DEIMR) | DE_PCU_EVENT); | |
5570 | ||
5571 | /* Go back to the starting frequency */ | |
7648fa99 | 5572 | ironlake_set_drps(dev, dev_priv->fstart); |
f97108d1 JB |
5573 | msleep(1); |
5574 | rgvswctl |= MEMCTL_CMD_STS; | |
5575 | I915_WRITE(MEMSWCTL, rgvswctl); | |
5576 | msleep(1); | |
5577 | ||
5578 | } | |
5579 | ||
7648fa99 JB |
5580 | static unsigned long intel_pxfreq(u32 vidfreq) |
5581 | { | |
5582 | unsigned long freq; | |
5583 | int div = (vidfreq & 0x3f0000) >> 16; | |
5584 | int post = (vidfreq & 0x3000) >> 12; | |
5585 | int pre = (vidfreq & 0x7); | |
5586 | ||
5587 | if (!pre) | |
5588 | return 0; | |
5589 | ||
5590 | freq = ((div * 133333) / ((1<<post) * pre)); | |
5591 | ||
5592 | return freq; | |
5593 | } | |
5594 | ||
5595 | void intel_init_emon(struct drm_device *dev) | |
5596 | { | |
5597 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5598 | u32 lcfuse; | |
5599 | u8 pxw[16]; | |
5600 | int i; | |
5601 | ||
5602 | /* Disable to program */ | |
5603 | I915_WRITE(ECR, 0); | |
5604 | POSTING_READ(ECR); | |
5605 | ||
5606 | /* Program energy weights for various events */ | |
5607 | I915_WRITE(SDEW, 0x15040d00); | |
5608 | I915_WRITE(CSIEW0, 0x007f0000); | |
5609 | I915_WRITE(CSIEW1, 0x1e220004); | |
5610 | I915_WRITE(CSIEW2, 0x04000004); | |
5611 | ||
5612 | for (i = 0; i < 5; i++) | |
5613 | I915_WRITE(PEW + (i * 4), 0); | |
5614 | for (i = 0; i < 3; i++) | |
5615 | I915_WRITE(DEW + (i * 4), 0); | |
5616 | ||
5617 | /* Program P-state weights to account for frequency power adjustment */ | |
5618 | for (i = 0; i < 16; i++) { | |
5619 | u32 pxvidfreq = I915_READ(PXVFREQ_BASE + (i * 4)); | |
5620 | unsigned long freq = intel_pxfreq(pxvidfreq); | |
5621 | unsigned long vid = (pxvidfreq & PXVFREQ_PX_MASK) >> | |
5622 | PXVFREQ_PX_SHIFT; | |
5623 | unsigned long val; | |
5624 | ||
5625 | val = vid * vid; | |
5626 | val *= (freq / 1000); | |
5627 | val *= 255; | |
5628 | val /= (127*127*900); | |
5629 | if (val > 0xff) | |
5630 | DRM_ERROR("bad pxval: %ld\n", val); | |
5631 | pxw[i] = val; | |
5632 | } | |
5633 | /* Render standby states get 0 weight */ | |
5634 | pxw[14] = 0; | |
5635 | pxw[15] = 0; | |
5636 | ||
5637 | for (i = 0; i < 4; i++) { | |
5638 | u32 val = (pxw[i*4] << 24) | (pxw[(i*4)+1] << 16) | | |
5639 | (pxw[(i*4)+2] << 8) | (pxw[(i*4)+3]); | |
5640 | I915_WRITE(PXW + (i * 4), val); | |
5641 | } | |
5642 | ||
5643 | /* Adjust magic regs to magic values (more experimental results) */ | |
5644 | I915_WRITE(OGW0, 0); | |
5645 | I915_WRITE(OGW1, 0); | |
5646 | I915_WRITE(EG0, 0x00007f00); | |
5647 | I915_WRITE(EG1, 0x0000000e); | |
5648 | I915_WRITE(EG2, 0x000e0000); | |
5649 | I915_WRITE(EG3, 0x68000300); | |
5650 | I915_WRITE(EG4, 0x42000000); | |
5651 | I915_WRITE(EG5, 0x00140031); | |
5652 | I915_WRITE(EG6, 0); | |
5653 | I915_WRITE(EG7, 0); | |
5654 | ||
5655 | for (i = 0; i < 8; i++) | |
5656 | I915_WRITE(PXWL + (i * 4), 0); | |
5657 | ||
5658 | /* Enable PMON + select events */ | |
5659 | I915_WRITE(ECR, 0x80000019); | |
5660 | ||
5661 | lcfuse = I915_READ(LCFUSE02); | |
5662 | ||
5663 | dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK); | |
5664 | } | |
5665 | ||
652c393a JB |
5666 | void intel_init_clock_gating(struct drm_device *dev) |
5667 | { | |
5668 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5669 | ||
5670 | /* | |
5671 | * Disable clock gating reported to work incorrectly according to the | |
5672 | * specs, but enable as much else as we can. | |
5673 | */ | |
bad720ff | 5674 | if (HAS_PCH_SPLIT(dev)) { |
8956c8bb EA |
5675 | uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; |
5676 | ||
5677 | if (IS_IRONLAKE(dev)) { | |
5678 | /* Required for FBC */ | |
5679 | dspclk_gate |= DPFDUNIT_CLOCK_GATE_DISABLE; | |
5680 | /* Required for CxSR */ | |
5681 | dspclk_gate |= DPARBUNIT_CLOCK_GATE_DISABLE; | |
5682 | ||
5683 | I915_WRITE(PCH_3DCGDIS0, | |
5684 | MARIUNIT_CLOCK_GATE_DISABLE | | |
5685 | SVSMUNIT_CLOCK_GATE_DISABLE); | |
5686 | } | |
5687 | ||
5688 | I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); | |
7f8a8569 ZW |
5689 | |
5690 | /* | |
5691 | * According to the spec the following bits should be set in | |
5692 | * order to enable memory self-refresh | |
5693 | * The bit 22/21 of 0x42004 | |
5694 | * The bit 5 of 0x42020 | |
5695 | * The bit 15 of 0x45000 | |
5696 | */ | |
5697 | if (IS_IRONLAKE(dev)) { | |
5698 | I915_WRITE(ILK_DISPLAY_CHICKEN2, | |
5699 | (I915_READ(ILK_DISPLAY_CHICKEN2) | | |
5700 | ILK_DPARB_GATE | ILK_VSDPFD_FULL)); | |
5701 | I915_WRITE(ILK_DSPCLK_GATE, | |
5702 | (I915_READ(ILK_DSPCLK_GATE) | | |
5703 | ILK_DPARB_CLK_GATE)); | |
5704 | I915_WRITE(DISP_ARB_CTL, | |
5705 | (I915_READ(DISP_ARB_CTL) | | |
5706 | DISP_FBC_WM_DIS)); | |
5707 | } | |
b52eb4dc ZY |
5708 | /* |
5709 | * Based on the document from hardware guys the following bits | |
5710 | * should be set unconditionally in order to enable FBC. | |
5711 | * The bit 22 of 0x42000 | |
5712 | * The bit 22 of 0x42004 | |
5713 | * The bit 7,8,9 of 0x42020. | |
5714 | */ | |
5715 | if (IS_IRONLAKE_M(dev)) { | |
5716 | I915_WRITE(ILK_DISPLAY_CHICKEN1, | |
5717 | I915_READ(ILK_DISPLAY_CHICKEN1) | | |
5718 | ILK_FBCQ_DIS); | |
5719 | I915_WRITE(ILK_DISPLAY_CHICKEN2, | |
5720 | I915_READ(ILK_DISPLAY_CHICKEN2) | | |
5721 | ILK_DPARB_GATE); | |
5722 | I915_WRITE(ILK_DSPCLK_GATE, | |
5723 | I915_READ(ILK_DSPCLK_GATE) | | |
5724 | ILK_DPFC_DIS1 | | |
5725 | ILK_DPFC_DIS2 | | |
5726 | ILK_CLK_FBC); | |
5727 | } | |
ce171780 ZN |
5728 | if (IS_GEN6(dev)) |
5729 | return; | |
c03342fa | 5730 | } else if (IS_G4X(dev)) { |
652c393a JB |
5731 | uint32_t dspclk_gate; |
5732 | I915_WRITE(RENCLK_GATE_D1, 0); | |
5733 | I915_WRITE(RENCLK_GATE_D2, VF_UNIT_CLOCK_GATE_DISABLE | | |
5734 | GS_UNIT_CLOCK_GATE_DISABLE | | |
5735 | CL_UNIT_CLOCK_GATE_DISABLE); | |
5736 | I915_WRITE(RAMCLK_GATE_D, 0); | |
5737 | dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE | | |
5738 | OVRUNIT_CLOCK_GATE_DISABLE | | |
5739 | OVCUNIT_CLOCK_GATE_DISABLE; | |
5740 | if (IS_GM45(dev)) | |
5741 | dspclk_gate |= DSSUNIT_CLOCK_GATE_DISABLE; | |
5742 | I915_WRITE(DSPCLK_GATE_D, dspclk_gate); | |
5743 | } else if (IS_I965GM(dev)) { | |
5744 | I915_WRITE(RENCLK_GATE_D1, I965_RCC_CLOCK_GATE_DISABLE); | |
5745 | I915_WRITE(RENCLK_GATE_D2, 0); | |
5746 | I915_WRITE(DSPCLK_GATE_D, 0); | |
5747 | I915_WRITE(RAMCLK_GATE_D, 0); | |
5748 | I915_WRITE16(DEUC, 0); | |
5749 | } else if (IS_I965G(dev)) { | |
5750 | I915_WRITE(RENCLK_GATE_D1, I965_RCZ_CLOCK_GATE_DISABLE | | |
5751 | I965_RCC_CLOCK_GATE_DISABLE | | |
5752 | I965_RCPB_CLOCK_GATE_DISABLE | | |
5753 | I965_ISC_CLOCK_GATE_DISABLE | | |
5754 | I965_FBC_CLOCK_GATE_DISABLE); | |
5755 | I915_WRITE(RENCLK_GATE_D2, 0); | |
5756 | } else if (IS_I9XX(dev)) { | |
5757 | u32 dstate = I915_READ(D_STATE); | |
5758 | ||
5759 | dstate |= DSTATE_PLL_D3_OFF | DSTATE_GFX_CLOCK_GATING | | |
5760 | DSTATE_DOT_CLOCK_GATING; | |
5761 | I915_WRITE(D_STATE, dstate); | |
f0f8a9ce | 5762 | } else if (IS_I85X(dev) || IS_I865G(dev)) { |
652c393a JB |
5763 | I915_WRITE(RENCLK_GATE_D1, SV_CLOCK_GATE_DISABLE); |
5764 | } else if (IS_I830(dev)) { | |
5765 | I915_WRITE(DSPCLK_GATE_D, OVRUNIT_CLOCK_GATE_DISABLE); | |
5766 | } | |
97f5ab66 JB |
5767 | |
5768 | /* | |
5769 | * GPU can automatically power down the render unit if given a page | |
5770 | * to save state. | |
5771 | */ | |
aa40d6bb ZN |
5772 | if (IS_IRONLAKE_M(dev)) { |
5773 | if (dev_priv->renderctx == NULL) | |
5774 | dev_priv->renderctx = intel_alloc_context_page(dev); | |
5775 | if (dev_priv->renderctx) { | |
5776 | struct drm_i915_gem_object *obj_priv; | |
5777 | obj_priv = to_intel_bo(dev_priv->renderctx); | |
5778 | if (obj_priv) { | |
5779 | BEGIN_LP_RING(4); | |
5780 | OUT_RING(MI_SET_CONTEXT); | |
5781 | OUT_RING(obj_priv->gtt_offset | | |
5782 | MI_MM_SPACE_GTT | | |
5783 | MI_SAVE_EXT_STATE_EN | | |
5784 | MI_RESTORE_EXT_STATE_EN | | |
5785 | MI_RESTORE_INHIBIT); | |
5786 | OUT_RING(MI_NOOP); | |
5787 | OUT_RING(MI_FLUSH); | |
5788 | ADVANCE_LP_RING(); | |
5789 | } | |
ce171780 | 5790 | } else { |
aa40d6bb | 5791 | DRM_DEBUG_KMS("Failed to allocate render context." |
ce171780 ZN |
5792 | "Disable RC6\n"); |
5793 | return; | |
5794 | } | |
aa40d6bb ZN |
5795 | } |
5796 | ||
1d3c36ad | 5797 | if (I915_HAS_RC6(dev) && drm_core_check_feature(dev, DRIVER_MODESET)) { |
9ea8d059 | 5798 | struct drm_i915_gem_object *obj_priv = NULL; |
97f5ab66 | 5799 | |
7e8b60fa | 5800 | if (dev_priv->pwrctx) { |
23010e43 | 5801 | obj_priv = to_intel_bo(dev_priv->pwrctx); |
7e8b60fa | 5802 | } else { |
9ea8d059 | 5803 | struct drm_gem_object *pwrctx; |
97f5ab66 | 5804 | |
aa40d6bb | 5805 | pwrctx = intel_alloc_context_page(dev); |
9ea8d059 CW |
5806 | if (pwrctx) { |
5807 | dev_priv->pwrctx = pwrctx; | |
23010e43 | 5808 | obj_priv = to_intel_bo(pwrctx); |
7e8b60fa | 5809 | } |
7e8b60fa | 5810 | } |
97f5ab66 | 5811 | |
9ea8d059 CW |
5812 | if (obj_priv) { |
5813 | I915_WRITE(PWRCTXA, obj_priv->gtt_offset | PWRCTX_EN); | |
5814 | I915_WRITE(MCHBAR_RENDER_STANDBY, | |
5815 | I915_READ(MCHBAR_RENDER_STANDBY) & ~RCX_SW_EXIT); | |
5816 | } | |
97f5ab66 | 5817 | } |
652c393a JB |
5818 | } |
5819 | ||
e70236a8 JB |
5820 | /* Set up chip specific display functions */ |
5821 | static void intel_init_display(struct drm_device *dev) | |
5822 | { | |
5823 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5824 | ||
5825 | /* We always want a DPMS function */ | |
bad720ff | 5826 | if (HAS_PCH_SPLIT(dev)) |
f2b115e6 | 5827 | dev_priv->display.dpms = ironlake_crtc_dpms; |
e70236a8 JB |
5828 | else |
5829 | dev_priv->display.dpms = i9xx_crtc_dpms; | |
5830 | ||
ee5382ae | 5831 | if (I915_HAS_FBC(dev)) { |
b52eb4dc ZY |
5832 | if (IS_IRONLAKE_M(dev)) { |
5833 | dev_priv->display.fbc_enabled = ironlake_fbc_enabled; | |
5834 | dev_priv->display.enable_fbc = ironlake_enable_fbc; | |
5835 | dev_priv->display.disable_fbc = ironlake_disable_fbc; | |
5836 | } else if (IS_GM45(dev)) { | |
74dff282 JB |
5837 | dev_priv->display.fbc_enabled = g4x_fbc_enabled; |
5838 | dev_priv->display.enable_fbc = g4x_enable_fbc; | |
5839 | dev_priv->display.disable_fbc = g4x_disable_fbc; | |
8d06a1e1 | 5840 | } else if (IS_I965GM(dev)) { |
e70236a8 JB |
5841 | dev_priv->display.fbc_enabled = i8xx_fbc_enabled; |
5842 | dev_priv->display.enable_fbc = i8xx_enable_fbc; | |
5843 | dev_priv->display.disable_fbc = i8xx_disable_fbc; | |
5844 | } | |
74dff282 | 5845 | /* 855GM needs testing */ |
e70236a8 JB |
5846 | } |
5847 | ||
5848 | /* Returns the core display clock speed */ | |
f2b115e6 | 5849 | if (IS_I945G(dev) || (IS_G33(dev) && ! IS_PINEVIEW_M(dev))) |
e70236a8 JB |
5850 | dev_priv->display.get_display_clock_speed = |
5851 | i945_get_display_clock_speed; | |
5852 | else if (IS_I915G(dev)) | |
5853 | dev_priv->display.get_display_clock_speed = | |
5854 | i915_get_display_clock_speed; | |
f2b115e6 | 5855 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
5856 | dev_priv->display.get_display_clock_speed = |
5857 | i9xx_misc_get_display_clock_speed; | |
5858 | else if (IS_I915GM(dev)) | |
5859 | dev_priv->display.get_display_clock_speed = | |
5860 | i915gm_get_display_clock_speed; | |
5861 | else if (IS_I865G(dev)) | |
5862 | dev_priv->display.get_display_clock_speed = | |
5863 | i865_get_display_clock_speed; | |
f0f8a9ce | 5864 | else if (IS_I85X(dev)) |
e70236a8 JB |
5865 | dev_priv->display.get_display_clock_speed = |
5866 | i855_get_display_clock_speed; | |
5867 | else /* 852, 830 */ | |
5868 | dev_priv->display.get_display_clock_speed = | |
5869 | i830_get_display_clock_speed; | |
5870 | ||
5871 | /* For FIFO watermark updates */ | |
7f8a8569 ZW |
5872 | if (HAS_PCH_SPLIT(dev)) { |
5873 | if (IS_IRONLAKE(dev)) { | |
5874 | if (I915_READ(MLTR_ILK) & ILK_SRLT_MASK) | |
5875 | dev_priv->display.update_wm = ironlake_update_wm; | |
5876 | else { | |
5877 | DRM_DEBUG_KMS("Failed to get proper latency. " | |
5878 | "Disable CxSR\n"); | |
5879 | dev_priv->display.update_wm = NULL; | |
5880 | } | |
5881 | } else | |
5882 | dev_priv->display.update_wm = NULL; | |
5883 | } else if (IS_PINEVIEW(dev)) { | |
d4294342 | 5884 | if (!intel_get_cxsr_latency(IS_PINEVIEW_G(dev), |
95534263 | 5885 | dev_priv->is_ddr3, |
d4294342 ZY |
5886 | dev_priv->fsb_freq, |
5887 | dev_priv->mem_freq)) { | |
5888 | DRM_INFO("failed to find known CxSR latency " | |
95534263 | 5889 | "(found ddr%s fsb freq %d, mem freq %d), " |
d4294342 | 5890 | "disabling CxSR\n", |
95534263 | 5891 | (dev_priv->is_ddr3 == 1) ? "3": "2", |
d4294342 ZY |
5892 | dev_priv->fsb_freq, dev_priv->mem_freq); |
5893 | /* Disable CxSR and never update its watermark again */ | |
5894 | pineview_disable_cxsr(dev); | |
5895 | dev_priv->display.update_wm = NULL; | |
5896 | } else | |
5897 | dev_priv->display.update_wm = pineview_update_wm; | |
5898 | } else if (IS_G4X(dev)) | |
e70236a8 JB |
5899 | dev_priv->display.update_wm = g4x_update_wm; |
5900 | else if (IS_I965G(dev)) | |
5901 | dev_priv->display.update_wm = i965_update_wm; | |
8f4695ed | 5902 | else if (IS_I9XX(dev)) { |
e70236a8 JB |
5903 | dev_priv->display.update_wm = i9xx_update_wm; |
5904 | dev_priv->display.get_fifo_size = i9xx_get_fifo_size; | |
8f4695ed AJ |
5905 | } else if (IS_I85X(dev)) { |
5906 | dev_priv->display.update_wm = i9xx_update_wm; | |
5907 | dev_priv->display.get_fifo_size = i85x_get_fifo_size; | |
e70236a8 | 5908 | } else { |
8f4695ed AJ |
5909 | dev_priv->display.update_wm = i830_update_wm; |
5910 | if (IS_845G(dev)) | |
e70236a8 JB |
5911 | dev_priv->display.get_fifo_size = i845_get_fifo_size; |
5912 | else | |
5913 | dev_priv->display.get_fifo_size = i830_get_fifo_size; | |
e70236a8 JB |
5914 | } |
5915 | } | |
5916 | ||
b690e96c JB |
5917 | /* |
5918 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
5919 | * resume, or other times. This quirk makes sure that's the case for | |
5920 | * affected systems. | |
5921 | */ | |
5922 | static void quirk_pipea_force (struct drm_device *dev) | |
5923 | { | |
5924 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5925 | ||
5926 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
5927 | DRM_DEBUG_DRIVER("applying pipe a force quirk\n"); | |
5928 | } | |
5929 | ||
5930 | struct intel_quirk { | |
5931 | int device; | |
5932 | int subsystem_vendor; | |
5933 | int subsystem_device; | |
5934 | void (*hook)(struct drm_device *dev); | |
5935 | }; | |
5936 | ||
5937 | struct intel_quirk intel_quirks[] = { | |
5938 | /* HP Compaq 2730p needs pipe A force quirk (LP: #291555) */ | |
5939 | { 0x2a42, 0x103c, 0x30eb, quirk_pipea_force }, | |
5940 | /* HP Mini needs pipe A force quirk (LP: #322104) */ | |
5941 | { 0x27ae,0x103c, 0x361a, quirk_pipea_force }, | |
5942 | ||
5943 | /* Thinkpad R31 needs pipe A force quirk */ | |
5944 | { 0x3577, 0x1014, 0x0505, quirk_pipea_force }, | |
5945 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ | |
5946 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
5947 | ||
5948 | /* ThinkPad X30 needs pipe A force quirk (LP: #304614) */ | |
5949 | { 0x3577, 0x1014, 0x0513, quirk_pipea_force }, | |
5950 | /* ThinkPad X40 needs pipe A force quirk */ | |
5951 | ||
5952 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ | |
5953 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
5954 | ||
5955 | /* 855 & before need to leave pipe A & dpll A up */ | |
5956 | { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
5957 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
5958 | }; | |
5959 | ||
5960 | static void intel_init_quirks(struct drm_device *dev) | |
5961 | { | |
5962 | struct pci_dev *d = dev->pdev; | |
5963 | int i; | |
5964 | ||
5965 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
5966 | struct intel_quirk *q = &intel_quirks[i]; | |
5967 | ||
5968 | if (d->device == q->device && | |
5969 | (d->subsystem_vendor == q->subsystem_vendor || | |
5970 | q->subsystem_vendor == PCI_ANY_ID) && | |
5971 | (d->subsystem_device == q->subsystem_device || | |
5972 | q->subsystem_device == PCI_ANY_ID)) | |
5973 | q->hook(dev); | |
5974 | } | |
5975 | } | |
5976 | ||
9cce37f4 JB |
5977 | /* Disable the VGA plane that we never use */ |
5978 | static void i915_disable_vga(struct drm_device *dev) | |
5979 | { | |
5980 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5981 | u8 sr1; | |
5982 | u32 vga_reg; | |
5983 | ||
5984 | if (HAS_PCH_SPLIT(dev)) | |
5985 | vga_reg = CPU_VGACNTRL; | |
5986 | else | |
5987 | vga_reg = VGACNTRL; | |
5988 | ||
5989 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); | |
5990 | outb(1, VGA_SR_INDEX); | |
5991 | sr1 = inb(VGA_SR_DATA); | |
5992 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
5993 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
5994 | udelay(300); | |
5995 | ||
5996 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
5997 | POSTING_READ(vga_reg); | |
5998 | } | |
5999 | ||
79e53945 JB |
6000 | void intel_modeset_init(struct drm_device *dev) |
6001 | { | |
652c393a | 6002 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
6003 | int i; |
6004 | ||
6005 | drm_mode_config_init(dev); | |
6006 | ||
6007 | dev->mode_config.min_width = 0; | |
6008 | dev->mode_config.min_height = 0; | |
6009 | ||
6010 | dev->mode_config.funcs = (void *)&intel_mode_funcs; | |
6011 | ||
b690e96c JB |
6012 | intel_init_quirks(dev); |
6013 | ||
e70236a8 JB |
6014 | intel_init_display(dev); |
6015 | ||
79e53945 JB |
6016 | if (IS_I965G(dev)) { |
6017 | dev->mode_config.max_width = 8192; | |
6018 | dev->mode_config.max_height = 8192; | |
5e4d6fa7 KP |
6019 | } else if (IS_I9XX(dev)) { |
6020 | dev->mode_config.max_width = 4096; | |
6021 | dev->mode_config.max_height = 4096; | |
79e53945 JB |
6022 | } else { |
6023 | dev->mode_config.max_width = 2048; | |
6024 | dev->mode_config.max_height = 2048; | |
6025 | } | |
6026 | ||
6027 | /* set memory base */ | |
6028 | if (IS_I9XX(dev)) | |
6029 | dev->mode_config.fb_base = pci_resource_start(dev->pdev, 2); | |
6030 | else | |
6031 | dev->mode_config.fb_base = pci_resource_start(dev->pdev, 0); | |
6032 | ||
6033 | if (IS_MOBILE(dev) || IS_I9XX(dev)) | |
a3524f1b | 6034 | dev_priv->num_pipe = 2; |
79e53945 | 6035 | else |
a3524f1b | 6036 | dev_priv->num_pipe = 1; |
28c97730 | 6037 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
a3524f1b | 6038 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
79e53945 | 6039 | |
a3524f1b | 6040 | for (i = 0; i < dev_priv->num_pipe; i++) { |
79e53945 JB |
6041 | intel_crtc_init(dev, i); |
6042 | } | |
6043 | ||
6044 | intel_setup_outputs(dev); | |
652c393a JB |
6045 | |
6046 | intel_init_clock_gating(dev); | |
6047 | ||
9cce37f4 JB |
6048 | /* Just disable it once at startup */ |
6049 | i915_disable_vga(dev); | |
6050 | ||
7648fa99 | 6051 | if (IS_IRONLAKE_M(dev)) { |
f97108d1 | 6052 | ironlake_enable_drps(dev); |
7648fa99 JB |
6053 | intel_init_emon(dev); |
6054 | } | |
f97108d1 | 6055 | |
652c393a JB |
6056 | INIT_WORK(&dev_priv->idle_work, intel_idle_update); |
6057 | setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer, | |
6058 | (unsigned long)dev); | |
02e792fb DV |
6059 | |
6060 | intel_setup_overlay(dev); | |
79e53945 JB |
6061 | } |
6062 | ||
6063 | void intel_modeset_cleanup(struct drm_device *dev) | |
6064 | { | |
652c393a JB |
6065 | struct drm_i915_private *dev_priv = dev->dev_private; |
6066 | struct drm_crtc *crtc; | |
6067 | struct intel_crtc *intel_crtc; | |
6068 | ||
6069 | mutex_lock(&dev->struct_mutex); | |
6070 | ||
eb1f8e4f | 6071 | drm_kms_helper_poll_fini(dev); |
38651674 DA |
6072 | intel_fbdev_fini(dev); |
6073 | ||
652c393a JB |
6074 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
6075 | /* Skip inactive CRTCs */ | |
6076 | if (!crtc->fb) | |
6077 | continue; | |
6078 | ||
6079 | intel_crtc = to_intel_crtc(crtc); | |
6080 | intel_increase_pllclock(crtc, false); | |
6081 | del_timer_sync(&intel_crtc->idle_timer); | |
6082 | } | |
6083 | ||
652c393a JB |
6084 | del_timer_sync(&dev_priv->idle_timer); |
6085 | ||
e70236a8 JB |
6086 | if (dev_priv->display.disable_fbc) |
6087 | dev_priv->display.disable_fbc(dev); | |
6088 | ||
aa40d6bb ZN |
6089 | if (dev_priv->renderctx) { |
6090 | struct drm_i915_gem_object *obj_priv; | |
6091 | ||
6092 | obj_priv = to_intel_bo(dev_priv->renderctx); | |
6093 | I915_WRITE(CCID, obj_priv->gtt_offset &~ CCID_EN); | |
6094 | I915_READ(CCID); | |
6095 | i915_gem_object_unpin(dev_priv->renderctx); | |
6096 | drm_gem_object_unreference(dev_priv->renderctx); | |
6097 | } | |
6098 | ||
97f5ab66 | 6099 | if (dev_priv->pwrctx) { |
c1b5dea0 KH |
6100 | struct drm_i915_gem_object *obj_priv; |
6101 | ||
23010e43 | 6102 | obj_priv = to_intel_bo(dev_priv->pwrctx); |
c1b5dea0 KH |
6103 | I915_WRITE(PWRCTXA, obj_priv->gtt_offset &~ PWRCTX_EN); |
6104 | I915_READ(PWRCTXA); | |
97f5ab66 JB |
6105 | i915_gem_object_unpin(dev_priv->pwrctx); |
6106 | drm_gem_object_unreference(dev_priv->pwrctx); | |
6107 | } | |
6108 | ||
f97108d1 JB |
6109 | if (IS_IRONLAKE_M(dev)) |
6110 | ironlake_disable_drps(dev); | |
6111 | ||
69341a5e KH |
6112 | mutex_unlock(&dev->struct_mutex); |
6113 | ||
79e53945 JB |
6114 | drm_mode_config_cleanup(dev); |
6115 | } | |
6116 | ||
6117 | ||
f1c79df3 ZW |
6118 | /* |
6119 | * Return which encoder is currently attached for connector. | |
6120 | */ | |
6121 | struct drm_encoder *intel_attached_encoder (struct drm_connector *connector) | |
79e53945 | 6122 | { |
f1c79df3 ZW |
6123 | struct drm_mode_object *obj; |
6124 | struct drm_encoder *encoder; | |
6125 | int i; | |
79e53945 | 6126 | |
f1c79df3 ZW |
6127 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
6128 | if (connector->encoder_ids[i] == 0) | |
6129 | break; | |
79e53945 | 6130 | |
f1c79df3 ZW |
6131 | obj = drm_mode_object_find(connector->dev, |
6132 | connector->encoder_ids[i], | |
6133 | DRM_MODE_OBJECT_ENCODER); | |
6134 | if (!obj) | |
6135 | continue; | |
6136 | ||
6137 | encoder = obj_to_encoder(obj); | |
6138 | return encoder; | |
6139 | } | |
6140 | return NULL; | |
79e53945 | 6141 | } |
28d52043 DA |
6142 | |
6143 | /* | |
6144 | * set vga decode state - true == enable VGA decode | |
6145 | */ | |
6146 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
6147 | { | |
6148 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6149 | u16 gmch_ctrl; | |
6150 | ||
6151 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
6152 | if (state) | |
6153 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
6154 | else | |
6155 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
6156 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
6157 | return 0; | |
6158 | } |