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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); |
3dec0095 | 46 | static void intel_increase_pllclock(struct drm_crtc *crtc); |
6b383a7f | 47 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
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 | |
021357ac CW |
345 | static inline u32 /* units of 100MHz */ |
346 | intel_fdi_link_freq(struct drm_device *dev) | |
347 | { | |
8b99e68c CW |
348 | if (IS_GEN5(dev)) { |
349 | struct drm_i915_private *dev_priv = dev->dev_private; | |
350 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
351 | } else | |
352 | return 27; | |
021357ac CW |
353 | } |
354 | ||
e4b36699 | 355 | static const intel_limit_t intel_limits_i8xx_dvo = { |
79e53945 JB |
356 | .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, |
357 | .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX }, | |
358 | .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX }, | |
359 | .m = { .min = I8XX_M_MIN, .max = I8XX_M_MAX }, | |
360 | .m1 = { .min = I8XX_M1_MIN, .max = I8XX_M1_MAX }, | |
361 | .m2 = { .min = I8XX_M2_MIN, .max = I8XX_M2_MAX }, | |
362 | .p = { .min = I8XX_P_MIN, .max = I8XX_P_MAX }, | |
363 | .p1 = { .min = I8XX_P1_MIN, .max = I8XX_P1_MAX }, | |
364 | .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, | |
365 | .p2_slow = I8XX_P2_SLOW, .p2_fast = I8XX_P2_FAST }, | |
d4906093 | 366 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
367 | }; |
368 | ||
369 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
79e53945 JB |
370 | .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, |
371 | .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX }, | |
372 | .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX }, | |
373 | .m = { .min = I8XX_M_MIN, .max = I8XX_M_MAX }, | |
374 | .m1 = { .min = I8XX_M1_MIN, .max = I8XX_M1_MAX }, | |
375 | .m2 = { .min = I8XX_M2_MIN, .max = I8XX_M2_MAX }, | |
376 | .p = { .min = I8XX_P_MIN, .max = I8XX_P_MAX }, | |
377 | .p1 = { .min = I8XX_P1_LVDS_MIN, .max = I8XX_P1_LVDS_MAX }, | |
378 | .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, | |
379 | .p2_slow = I8XX_P2_LVDS_SLOW, .p2_fast = I8XX_P2_LVDS_FAST }, | |
d4906093 | 380 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
381 | }; |
382 | ||
383 | static const intel_limit_t intel_limits_i9xx_sdvo = { | |
79e53945 JB |
384 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
385 | .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX }, | |
386 | .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX }, | |
387 | .m = { .min = I9XX_M_MIN, .max = I9XX_M_MAX }, | |
388 | .m1 = { .min = I9XX_M1_MIN, .max = I9XX_M1_MAX }, | |
389 | .m2 = { .min = I9XX_M2_MIN, .max = I9XX_M2_MAX }, | |
390 | .p = { .min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX }, | |
391 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
392 | .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, | |
393 | .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, | |
d4906093 | 394 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
395 | }; |
396 | ||
397 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
79e53945 JB |
398 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
399 | .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX }, | |
400 | .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX }, | |
401 | .m = { .min = I9XX_M_MIN, .max = I9XX_M_MAX }, | |
402 | .m1 = { .min = I9XX_M1_MIN, .max = I9XX_M1_MAX }, | |
403 | .m2 = { .min = I9XX_M2_MIN, .max = I9XX_M2_MAX }, | |
404 | .p = { .min = I9XX_P_LVDS_MIN, .max = I9XX_P_LVDS_MAX }, | |
405 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
406 | /* The single-channel range is 25-112Mhz, and dual-channel | |
407 | * is 80-224Mhz. Prefer single channel as much as possible. | |
408 | */ | |
409 | .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, | |
410 | .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_FAST }, | |
d4906093 | 411 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
412 | }; |
413 | ||
044c7c41 | 414 | /* below parameter and function is for G4X Chipset Family*/ |
e4b36699 | 415 | static const intel_limit_t intel_limits_g4x_sdvo = { |
044c7c41 ML |
416 | .dot = { .min = G4X_DOT_SDVO_MIN, .max = G4X_DOT_SDVO_MAX }, |
417 | .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX}, | |
418 | .n = { .min = G4X_N_SDVO_MIN, .max = G4X_N_SDVO_MAX }, | |
419 | .m = { .min = G4X_M_SDVO_MIN, .max = G4X_M_SDVO_MAX }, | |
420 | .m1 = { .min = G4X_M1_SDVO_MIN, .max = G4X_M1_SDVO_MAX }, | |
421 | .m2 = { .min = G4X_M2_SDVO_MIN, .max = G4X_M2_SDVO_MAX }, | |
422 | .p = { .min = G4X_P_SDVO_MIN, .max = G4X_P_SDVO_MAX }, | |
423 | .p1 = { .min = G4X_P1_SDVO_MIN, .max = G4X_P1_SDVO_MAX}, | |
424 | .p2 = { .dot_limit = G4X_P2_SDVO_LIMIT, | |
425 | .p2_slow = G4X_P2_SDVO_SLOW, | |
426 | .p2_fast = G4X_P2_SDVO_FAST | |
427 | }, | |
d4906093 | 428 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
429 | }; |
430 | ||
431 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
044c7c41 ML |
432 | .dot = { .min = G4X_DOT_HDMI_DAC_MIN, .max = G4X_DOT_HDMI_DAC_MAX }, |
433 | .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX}, | |
434 | .n = { .min = G4X_N_HDMI_DAC_MIN, .max = G4X_N_HDMI_DAC_MAX }, | |
435 | .m = { .min = G4X_M_HDMI_DAC_MIN, .max = G4X_M_HDMI_DAC_MAX }, | |
436 | .m1 = { .min = G4X_M1_HDMI_DAC_MIN, .max = G4X_M1_HDMI_DAC_MAX }, | |
437 | .m2 = { .min = G4X_M2_HDMI_DAC_MIN, .max = G4X_M2_HDMI_DAC_MAX }, | |
438 | .p = { .min = G4X_P_HDMI_DAC_MIN, .max = G4X_P_HDMI_DAC_MAX }, | |
439 | .p1 = { .min = G4X_P1_HDMI_DAC_MIN, .max = G4X_P1_HDMI_DAC_MAX}, | |
440 | .p2 = { .dot_limit = G4X_P2_HDMI_DAC_LIMIT, | |
441 | .p2_slow = G4X_P2_HDMI_DAC_SLOW, | |
442 | .p2_fast = G4X_P2_HDMI_DAC_FAST | |
443 | }, | |
d4906093 | 444 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
445 | }; |
446 | ||
447 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
044c7c41 ML |
448 | .dot = { .min = G4X_DOT_SINGLE_CHANNEL_LVDS_MIN, |
449 | .max = G4X_DOT_SINGLE_CHANNEL_LVDS_MAX }, | |
450 | .vco = { .min = G4X_VCO_MIN, | |
451 | .max = G4X_VCO_MAX }, | |
452 | .n = { .min = G4X_N_SINGLE_CHANNEL_LVDS_MIN, | |
453 | .max = G4X_N_SINGLE_CHANNEL_LVDS_MAX }, | |
454 | .m = { .min = G4X_M_SINGLE_CHANNEL_LVDS_MIN, | |
455 | .max = G4X_M_SINGLE_CHANNEL_LVDS_MAX }, | |
456 | .m1 = { .min = G4X_M1_SINGLE_CHANNEL_LVDS_MIN, | |
457 | .max = G4X_M1_SINGLE_CHANNEL_LVDS_MAX }, | |
458 | .m2 = { .min = G4X_M2_SINGLE_CHANNEL_LVDS_MIN, | |
459 | .max = G4X_M2_SINGLE_CHANNEL_LVDS_MAX }, | |
460 | .p = { .min = G4X_P_SINGLE_CHANNEL_LVDS_MIN, | |
461 | .max = G4X_P_SINGLE_CHANNEL_LVDS_MAX }, | |
462 | .p1 = { .min = G4X_P1_SINGLE_CHANNEL_LVDS_MIN, | |
463 | .max = G4X_P1_SINGLE_CHANNEL_LVDS_MAX }, | |
464 | .p2 = { .dot_limit = G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT, | |
465 | .p2_slow = G4X_P2_SINGLE_CHANNEL_LVDS_SLOW, | |
466 | .p2_fast = G4X_P2_SINGLE_CHANNEL_LVDS_FAST | |
467 | }, | |
d4906093 | 468 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
469 | }; |
470 | ||
471 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
044c7c41 ML |
472 | .dot = { .min = G4X_DOT_DUAL_CHANNEL_LVDS_MIN, |
473 | .max = G4X_DOT_DUAL_CHANNEL_LVDS_MAX }, | |
474 | .vco = { .min = G4X_VCO_MIN, | |
475 | .max = G4X_VCO_MAX }, | |
476 | .n = { .min = G4X_N_DUAL_CHANNEL_LVDS_MIN, | |
477 | .max = G4X_N_DUAL_CHANNEL_LVDS_MAX }, | |
478 | .m = { .min = G4X_M_DUAL_CHANNEL_LVDS_MIN, | |
479 | .max = G4X_M_DUAL_CHANNEL_LVDS_MAX }, | |
480 | .m1 = { .min = G4X_M1_DUAL_CHANNEL_LVDS_MIN, | |
481 | .max = G4X_M1_DUAL_CHANNEL_LVDS_MAX }, | |
482 | .m2 = { .min = G4X_M2_DUAL_CHANNEL_LVDS_MIN, | |
483 | .max = G4X_M2_DUAL_CHANNEL_LVDS_MAX }, | |
484 | .p = { .min = G4X_P_DUAL_CHANNEL_LVDS_MIN, | |
485 | .max = G4X_P_DUAL_CHANNEL_LVDS_MAX }, | |
486 | .p1 = { .min = G4X_P1_DUAL_CHANNEL_LVDS_MIN, | |
487 | .max = G4X_P1_DUAL_CHANNEL_LVDS_MAX }, | |
488 | .p2 = { .dot_limit = G4X_P2_DUAL_CHANNEL_LVDS_LIMIT, | |
489 | .p2_slow = G4X_P2_DUAL_CHANNEL_LVDS_SLOW, | |
490 | .p2_fast = G4X_P2_DUAL_CHANNEL_LVDS_FAST | |
491 | }, | |
d4906093 | 492 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
493 | }; |
494 | ||
495 | static const intel_limit_t intel_limits_g4x_display_port = { | |
a4fc5ed6 KP |
496 | .dot = { .min = G4X_DOT_DISPLAY_PORT_MIN, |
497 | .max = G4X_DOT_DISPLAY_PORT_MAX }, | |
498 | .vco = { .min = G4X_VCO_MIN, | |
499 | .max = G4X_VCO_MAX}, | |
500 | .n = { .min = G4X_N_DISPLAY_PORT_MIN, | |
501 | .max = G4X_N_DISPLAY_PORT_MAX }, | |
502 | .m = { .min = G4X_M_DISPLAY_PORT_MIN, | |
503 | .max = G4X_M_DISPLAY_PORT_MAX }, | |
504 | .m1 = { .min = G4X_M1_DISPLAY_PORT_MIN, | |
505 | .max = G4X_M1_DISPLAY_PORT_MAX }, | |
506 | .m2 = { .min = G4X_M2_DISPLAY_PORT_MIN, | |
507 | .max = G4X_M2_DISPLAY_PORT_MAX }, | |
508 | .p = { .min = G4X_P_DISPLAY_PORT_MIN, | |
509 | .max = G4X_P_DISPLAY_PORT_MAX }, | |
510 | .p1 = { .min = G4X_P1_DISPLAY_PORT_MIN, | |
511 | .max = G4X_P1_DISPLAY_PORT_MAX}, | |
512 | .p2 = { .dot_limit = G4X_P2_DISPLAY_PORT_LIMIT, | |
513 | .p2_slow = G4X_P2_DISPLAY_PORT_SLOW, | |
514 | .p2_fast = G4X_P2_DISPLAY_PORT_FAST }, | |
515 | .find_pll = intel_find_pll_g4x_dp, | |
e4b36699 KP |
516 | }; |
517 | ||
f2b115e6 | 518 | static const intel_limit_t intel_limits_pineview_sdvo = { |
2177832f | 519 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX}, |
f2b115e6 AJ |
520 | .vco = { .min = PINEVIEW_VCO_MIN, .max = PINEVIEW_VCO_MAX }, |
521 | .n = { .min = PINEVIEW_N_MIN, .max = PINEVIEW_N_MAX }, | |
522 | .m = { .min = PINEVIEW_M_MIN, .max = PINEVIEW_M_MAX }, | |
523 | .m1 = { .min = PINEVIEW_M1_MIN, .max = PINEVIEW_M1_MAX }, | |
524 | .m2 = { .min = PINEVIEW_M2_MIN, .max = PINEVIEW_M2_MAX }, | |
2177832f SL |
525 | .p = { .min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX }, |
526 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
527 | .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, | |
528 | .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, | |
6115707b | 529 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
530 | }; |
531 | ||
f2b115e6 | 532 | static const intel_limit_t intel_limits_pineview_lvds = { |
2177832f | 533 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
f2b115e6 AJ |
534 | .vco = { .min = PINEVIEW_VCO_MIN, .max = PINEVIEW_VCO_MAX }, |
535 | .n = { .min = PINEVIEW_N_MIN, .max = PINEVIEW_N_MAX }, | |
536 | .m = { .min = PINEVIEW_M_MIN, .max = PINEVIEW_M_MAX }, | |
537 | .m1 = { .min = PINEVIEW_M1_MIN, .max = PINEVIEW_M1_MAX }, | |
538 | .m2 = { .min = PINEVIEW_M2_MIN, .max = PINEVIEW_M2_MAX }, | |
539 | .p = { .min = PINEVIEW_P_LVDS_MIN, .max = PINEVIEW_P_LVDS_MAX }, | |
2177832f | 540 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, |
f2b115e6 | 541 | /* Pineview only supports single-channel mode. */ |
2177832f SL |
542 | .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, |
543 | .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_SLOW }, | |
6115707b | 544 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
545 | }; |
546 | ||
b91ad0ec | 547 | static const intel_limit_t intel_limits_ironlake_dac = { |
f2b115e6 AJ |
548 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, |
549 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
b91ad0ec ZW |
550 | .n = { .min = IRONLAKE_DAC_N_MIN, .max = IRONLAKE_DAC_N_MAX }, |
551 | .m = { .min = IRONLAKE_DAC_M_MIN, .max = IRONLAKE_DAC_M_MAX }, | |
f2b115e6 AJ |
552 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, |
553 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
b91ad0ec ZW |
554 | .p = { .min = IRONLAKE_DAC_P_MIN, .max = IRONLAKE_DAC_P_MAX }, |
555 | .p1 = { .min = IRONLAKE_DAC_P1_MIN, .max = IRONLAKE_DAC_P1_MAX }, | |
f2b115e6 | 556 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, |
b91ad0ec ZW |
557 | .p2_slow = IRONLAKE_DAC_P2_SLOW, |
558 | .p2_fast = IRONLAKE_DAC_P2_FAST }, | |
4547668a | 559 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
560 | }; |
561 | ||
b91ad0ec | 562 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
f2b115e6 AJ |
563 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, |
564 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
b91ad0ec ZW |
565 | .n = { .min = IRONLAKE_LVDS_S_N_MIN, .max = IRONLAKE_LVDS_S_N_MAX }, |
566 | .m = { .min = IRONLAKE_LVDS_S_M_MIN, .max = IRONLAKE_LVDS_S_M_MAX }, | |
f2b115e6 AJ |
567 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, |
568 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
b91ad0ec ZW |
569 | .p = { .min = IRONLAKE_LVDS_S_P_MIN, .max = IRONLAKE_LVDS_S_P_MAX }, |
570 | .p1 = { .min = IRONLAKE_LVDS_S_P1_MIN, .max = IRONLAKE_LVDS_S_P1_MAX }, | |
f2b115e6 | 571 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, |
b91ad0ec ZW |
572 | .p2_slow = IRONLAKE_LVDS_S_P2_SLOW, |
573 | .p2_fast = IRONLAKE_LVDS_S_P2_FAST }, | |
574 | .find_pll = intel_g4x_find_best_PLL, | |
575 | }; | |
576 | ||
577 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
578 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, | |
579 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
580 | .n = { .min = IRONLAKE_LVDS_D_N_MIN, .max = IRONLAKE_LVDS_D_N_MAX }, | |
581 | .m = { .min = IRONLAKE_LVDS_D_M_MIN, .max = IRONLAKE_LVDS_D_M_MAX }, | |
582 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, | |
583 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
584 | .p = { .min = IRONLAKE_LVDS_D_P_MIN, .max = IRONLAKE_LVDS_D_P_MAX }, | |
585 | .p1 = { .min = IRONLAKE_LVDS_D_P1_MIN, .max = IRONLAKE_LVDS_D_P1_MAX }, | |
586 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, | |
587 | .p2_slow = IRONLAKE_LVDS_D_P2_SLOW, | |
588 | .p2_fast = IRONLAKE_LVDS_D_P2_FAST }, | |
589 | .find_pll = intel_g4x_find_best_PLL, | |
590 | }; | |
591 | ||
592 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { | |
593 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, | |
594 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
595 | .n = { .min = IRONLAKE_LVDS_S_SSC_N_MIN, .max = IRONLAKE_LVDS_S_SSC_N_MAX }, | |
596 | .m = { .min = IRONLAKE_LVDS_S_SSC_M_MIN, .max = IRONLAKE_LVDS_S_SSC_M_MAX }, | |
597 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, | |
598 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
599 | .p = { .min = IRONLAKE_LVDS_S_SSC_P_MIN, .max = IRONLAKE_LVDS_S_SSC_P_MAX }, | |
600 | .p1 = { .min = IRONLAKE_LVDS_S_SSC_P1_MIN,.max = IRONLAKE_LVDS_S_SSC_P1_MAX }, | |
601 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, | |
602 | .p2_slow = IRONLAKE_LVDS_S_SSC_P2_SLOW, | |
603 | .p2_fast = IRONLAKE_LVDS_S_SSC_P2_FAST }, | |
604 | .find_pll = intel_g4x_find_best_PLL, | |
605 | }; | |
606 | ||
607 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
608 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, | |
609 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
610 | .n = { .min = IRONLAKE_LVDS_D_SSC_N_MIN, .max = IRONLAKE_LVDS_D_SSC_N_MAX }, | |
611 | .m = { .min = IRONLAKE_LVDS_D_SSC_M_MIN, .max = IRONLAKE_LVDS_D_SSC_M_MAX }, | |
612 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, | |
613 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
614 | .p = { .min = IRONLAKE_LVDS_D_SSC_P_MIN, .max = IRONLAKE_LVDS_D_SSC_P_MAX }, | |
615 | .p1 = { .min = IRONLAKE_LVDS_D_SSC_P1_MIN,.max = IRONLAKE_LVDS_D_SSC_P1_MAX }, | |
616 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, | |
617 | .p2_slow = IRONLAKE_LVDS_D_SSC_P2_SLOW, | |
618 | .p2_fast = IRONLAKE_LVDS_D_SSC_P2_FAST }, | |
4547668a ZY |
619 | .find_pll = intel_g4x_find_best_PLL, |
620 | }; | |
621 | ||
622 | static const intel_limit_t intel_limits_ironlake_display_port = { | |
623 | .dot = { .min = IRONLAKE_DOT_MIN, | |
624 | .max = IRONLAKE_DOT_MAX }, | |
625 | .vco = { .min = IRONLAKE_VCO_MIN, | |
626 | .max = IRONLAKE_VCO_MAX}, | |
b91ad0ec ZW |
627 | .n = { .min = IRONLAKE_DP_N_MIN, |
628 | .max = IRONLAKE_DP_N_MAX }, | |
629 | .m = { .min = IRONLAKE_DP_M_MIN, | |
630 | .max = IRONLAKE_DP_M_MAX }, | |
4547668a ZY |
631 | .m1 = { .min = IRONLAKE_M1_MIN, |
632 | .max = IRONLAKE_M1_MAX }, | |
633 | .m2 = { .min = IRONLAKE_M2_MIN, | |
634 | .max = IRONLAKE_M2_MAX }, | |
b91ad0ec ZW |
635 | .p = { .min = IRONLAKE_DP_P_MIN, |
636 | .max = IRONLAKE_DP_P_MAX }, | |
637 | .p1 = { .min = IRONLAKE_DP_P1_MIN, | |
638 | .max = IRONLAKE_DP_P1_MAX}, | |
639 | .p2 = { .dot_limit = IRONLAKE_DP_P2_LIMIT, | |
640 | .p2_slow = IRONLAKE_DP_P2_SLOW, | |
641 | .p2_fast = IRONLAKE_DP_P2_FAST }, | |
4547668a | 642 | .find_pll = intel_find_pll_ironlake_dp, |
79e53945 JB |
643 | }; |
644 | ||
1b894b59 CW |
645 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
646 | int refclk) | |
2c07245f | 647 | { |
b91ad0ec ZW |
648 | struct drm_device *dev = crtc->dev; |
649 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2c07245f | 650 | const intel_limit_t *limit; |
b91ad0ec ZW |
651 | |
652 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b91ad0ec ZW |
653 | if ((I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == |
654 | LVDS_CLKB_POWER_UP) { | |
655 | /* LVDS dual channel */ | |
1b894b59 | 656 | if (refclk == 100000) |
b91ad0ec ZW |
657 | limit = &intel_limits_ironlake_dual_lvds_100m; |
658 | else | |
659 | limit = &intel_limits_ironlake_dual_lvds; | |
660 | } else { | |
1b894b59 | 661 | if (refclk == 100000) |
b91ad0ec ZW |
662 | limit = &intel_limits_ironlake_single_lvds_100m; |
663 | else | |
664 | limit = &intel_limits_ironlake_single_lvds; | |
665 | } | |
666 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || | |
4547668a ZY |
667 | HAS_eDP) |
668 | limit = &intel_limits_ironlake_display_port; | |
2c07245f | 669 | else |
b91ad0ec | 670 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
671 | |
672 | return limit; | |
673 | } | |
674 | ||
044c7c41 ML |
675 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
676 | { | |
677 | struct drm_device *dev = crtc->dev; | |
678 | struct drm_i915_private *dev_priv = dev->dev_private; | |
679 | const intel_limit_t *limit; | |
680 | ||
681 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
682 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
683 | LVDS_CLKB_POWER_UP) | |
684 | /* LVDS with dual channel */ | |
e4b36699 | 685 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 ML |
686 | else |
687 | /* LVDS with dual channel */ | |
e4b36699 | 688 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
689 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
690 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 691 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 692 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 693 | limit = &intel_limits_g4x_sdvo; |
a4fc5ed6 | 694 | } else if (intel_pipe_has_type (crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
e4b36699 | 695 | limit = &intel_limits_g4x_display_port; |
044c7c41 | 696 | } else /* The option is for other outputs */ |
e4b36699 | 697 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
698 | |
699 | return limit; | |
700 | } | |
701 | ||
1b894b59 | 702 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
79e53945 JB |
703 | { |
704 | struct drm_device *dev = crtc->dev; | |
705 | const intel_limit_t *limit; | |
706 | ||
bad720ff | 707 | if (HAS_PCH_SPLIT(dev)) |
1b894b59 | 708 | limit = intel_ironlake_limit(crtc, refclk); |
2c07245f | 709 | else if (IS_G4X(dev)) { |
044c7c41 | 710 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 711 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 712 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 713 | limit = &intel_limits_pineview_lvds; |
2177832f | 714 | else |
f2b115e6 | 715 | limit = &intel_limits_pineview_sdvo; |
a6c45cf0 CW |
716 | } else if (!IS_GEN2(dev)) { |
717 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
718 | limit = &intel_limits_i9xx_lvds; | |
719 | else | |
720 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 JB |
721 | } else { |
722 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 723 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 724 | else |
e4b36699 | 725 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
726 | } |
727 | return limit; | |
728 | } | |
729 | ||
f2b115e6 AJ |
730 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
731 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 732 | { |
2177832f SL |
733 | clock->m = clock->m2 + 2; |
734 | clock->p = clock->p1 * clock->p2; | |
735 | clock->vco = refclk * clock->m / clock->n; | |
736 | clock->dot = clock->vco / clock->p; | |
737 | } | |
738 | ||
739 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) | |
740 | { | |
f2b115e6 AJ |
741 | if (IS_PINEVIEW(dev)) { |
742 | pineview_clock(refclk, clock); | |
2177832f SL |
743 | return; |
744 | } | |
79e53945 JB |
745 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
746 | clock->p = clock->p1 * clock->p2; | |
747 | clock->vco = refclk * clock->m / (clock->n + 2); | |
748 | clock->dot = clock->vco / clock->p; | |
749 | } | |
750 | ||
79e53945 JB |
751 | /** |
752 | * Returns whether any output on the specified pipe is of the specified type | |
753 | */ | |
4ef69c7a | 754 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
79e53945 | 755 | { |
4ef69c7a CW |
756 | struct drm_device *dev = crtc->dev; |
757 | struct drm_mode_config *mode_config = &dev->mode_config; | |
758 | struct intel_encoder *encoder; | |
759 | ||
760 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) | |
761 | if (encoder->base.crtc == crtc && encoder->type == type) | |
762 | return true; | |
763 | ||
764 | return false; | |
79e53945 JB |
765 | } |
766 | ||
7c04d1d9 | 767 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
768 | /** |
769 | * Returns whether the given set of divisors are valid for a given refclk with | |
770 | * the given connectors. | |
771 | */ | |
772 | ||
1b894b59 CW |
773 | static bool intel_PLL_is_valid(struct drm_device *dev, |
774 | const intel_limit_t *limit, | |
775 | const intel_clock_t *clock) | |
79e53945 | 776 | { |
79e53945 JB |
777 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
778 | INTELPllInvalid ("p1 out of range\n"); | |
779 | if (clock->p < limit->p.min || limit->p.max < clock->p) | |
780 | INTELPllInvalid ("p out of range\n"); | |
781 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) | |
782 | INTELPllInvalid ("m2 out of range\n"); | |
783 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) | |
784 | INTELPllInvalid ("m1 out of range\n"); | |
f2b115e6 | 785 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
79e53945 JB |
786 | INTELPllInvalid ("m1 <= m2\n"); |
787 | if (clock->m < limit->m.min || limit->m.max < clock->m) | |
788 | INTELPllInvalid ("m out of range\n"); | |
789 | if (clock->n < limit->n.min || limit->n.max < clock->n) | |
790 | INTELPllInvalid ("n out of range\n"); | |
791 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) | |
792 | INTELPllInvalid ("vco out of range\n"); | |
793 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, | |
794 | * connector, etc., rather than just a single range. | |
795 | */ | |
796 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
797 | INTELPllInvalid ("dot out of range\n"); | |
798 | ||
799 | return true; | |
800 | } | |
801 | ||
d4906093 ML |
802 | static bool |
803 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
804 | int target, int refclk, intel_clock_t *best_clock) | |
805 | ||
79e53945 JB |
806 | { |
807 | struct drm_device *dev = crtc->dev; | |
808 | struct drm_i915_private *dev_priv = dev->dev_private; | |
809 | intel_clock_t clock; | |
79e53945 JB |
810 | int err = target; |
811 | ||
bc5e5718 | 812 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
832cc28d | 813 | (I915_READ(LVDS)) != 0) { |
79e53945 JB |
814 | /* |
815 | * For LVDS, if the panel is on, just rely on its current | |
816 | * settings for dual-channel. We haven't figured out how to | |
817 | * reliably set up different single/dual channel state, if we | |
818 | * even can. | |
819 | */ | |
820 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
821 | LVDS_CLKB_POWER_UP) | |
822 | clock.p2 = limit->p2.p2_fast; | |
823 | else | |
824 | clock.p2 = limit->p2.p2_slow; | |
825 | } else { | |
826 | if (target < limit->p2.dot_limit) | |
827 | clock.p2 = limit->p2.p2_slow; | |
828 | else | |
829 | clock.p2 = limit->p2.p2_fast; | |
830 | } | |
831 | ||
832 | memset (best_clock, 0, sizeof (*best_clock)); | |
833 | ||
42158660 ZY |
834 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
835 | clock.m1++) { | |
836 | for (clock.m2 = limit->m2.min; | |
837 | clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
838 | /* m1 is always 0 in Pineview */ |
839 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
42158660 ZY |
840 | break; |
841 | for (clock.n = limit->n.min; | |
842 | clock.n <= limit->n.max; clock.n++) { | |
843 | for (clock.p1 = limit->p1.min; | |
844 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
845 | int this_err; |
846 | ||
2177832f | 847 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
848 | if (!intel_PLL_is_valid(dev, limit, |
849 | &clock)) | |
79e53945 JB |
850 | continue; |
851 | ||
852 | this_err = abs(clock.dot - target); | |
853 | if (this_err < err) { | |
854 | *best_clock = clock; | |
855 | err = this_err; | |
856 | } | |
857 | } | |
858 | } | |
859 | } | |
860 | } | |
861 | ||
862 | return (err != target); | |
863 | } | |
864 | ||
d4906093 ML |
865 | static bool |
866 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
867 | int target, int refclk, intel_clock_t *best_clock) | |
868 | { | |
869 | struct drm_device *dev = crtc->dev; | |
870 | struct drm_i915_private *dev_priv = dev->dev_private; | |
871 | intel_clock_t clock; | |
872 | int max_n; | |
873 | bool found; | |
6ba770dc AJ |
874 | /* approximately equals target * 0.00585 */ |
875 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
876 | found = false; |
877 | ||
878 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4547668a ZY |
879 | int lvds_reg; |
880 | ||
c619eed4 | 881 | if (HAS_PCH_SPLIT(dev)) |
4547668a ZY |
882 | lvds_reg = PCH_LVDS; |
883 | else | |
884 | lvds_reg = LVDS; | |
885 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == | |
d4906093 ML |
886 | LVDS_CLKB_POWER_UP) |
887 | clock.p2 = limit->p2.p2_fast; | |
888 | else | |
889 | clock.p2 = limit->p2.p2_slow; | |
890 | } else { | |
891 | if (target < limit->p2.dot_limit) | |
892 | clock.p2 = limit->p2.p2_slow; | |
893 | else | |
894 | clock.p2 = limit->p2.p2_fast; | |
895 | } | |
896 | ||
897 | memset(best_clock, 0, sizeof(*best_clock)); | |
898 | max_n = limit->n.max; | |
f77f13e2 | 899 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 900 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 901 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
902 | for (clock.m1 = limit->m1.max; |
903 | clock.m1 >= limit->m1.min; clock.m1--) { | |
904 | for (clock.m2 = limit->m2.max; | |
905 | clock.m2 >= limit->m2.min; clock.m2--) { | |
906 | for (clock.p1 = limit->p1.max; | |
907 | clock.p1 >= limit->p1.min; clock.p1--) { | |
908 | int this_err; | |
909 | ||
2177832f | 910 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
911 | if (!intel_PLL_is_valid(dev, limit, |
912 | &clock)) | |
d4906093 | 913 | continue; |
1b894b59 CW |
914 | |
915 | this_err = abs(clock.dot - target); | |
d4906093 ML |
916 | if (this_err < err_most) { |
917 | *best_clock = clock; | |
918 | err_most = this_err; | |
919 | max_n = clock.n; | |
920 | found = true; | |
921 | } | |
922 | } | |
923 | } | |
924 | } | |
925 | } | |
2c07245f ZW |
926 | return found; |
927 | } | |
928 | ||
5eb08b69 | 929 | static bool |
f2b115e6 AJ |
930 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
931 | int target, int refclk, intel_clock_t *best_clock) | |
5eb08b69 ZW |
932 | { |
933 | struct drm_device *dev = crtc->dev; | |
934 | intel_clock_t clock; | |
4547668a | 935 | |
5eb08b69 ZW |
936 | if (target < 200000) { |
937 | clock.n = 1; | |
938 | clock.p1 = 2; | |
939 | clock.p2 = 10; | |
940 | clock.m1 = 12; | |
941 | clock.m2 = 9; | |
942 | } else { | |
943 | clock.n = 2; | |
944 | clock.p1 = 1; | |
945 | clock.p2 = 10; | |
946 | clock.m1 = 14; | |
947 | clock.m2 = 8; | |
948 | } | |
949 | intel_clock(dev, refclk, &clock); | |
950 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
951 | return true; | |
952 | } | |
953 | ||
a4fc5ed6 KP |
954 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
955 | static bool | |
956 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, | |
957 | int target, int refclk, intel_clock_t *best_clock) | |
958 | { | |
5eddb70b CW |
959 | intel_clock_t clock; |
960 | if (target < 200000) { | |
961 | clock.p1 = 2; | |
962 | clock.p2 = 10; | |
963 | clock.n = 2; | |
964 | clock.m1 = 23; | |
965 | clock.m2 = 8; | |
966 | } else { | |
967 | clock.p1 = 1; | |
968 | clock.p2 = 10; | |
969 | clock.n = 1; | |
970 | clock.m1 = 14; | |
971 | clock.m2 = 2; | |
972 | } | |
973 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); | |
974 | clock.p = (clock.p1 * clock.p2); | |
975 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; | |
976 | clock.vco = 0; | |
977 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
978 | return true; | |
a4fc5ed6 KP |
979 | } |
980 | ||
9d0498a2 JB |
981 | /** |
982 | * intel_wait_for_vblank - wait for vblank on a given pipe | |
983 | * @dev: drm device | |
984 | * @pipe: pipe to wait for | |
985 | * | |
986 | * Wait for vblank to occur on a given pipe. Needed for various bits of | |
987 | * mode setting code. | |
988 | */ | |
989 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) | |
79e53945 | 990 | { |
9d0498a2 JB |
991 | struct drm_i915_private *dev_priv = dev->dev_private; |
992 | int pipestat_reg = (pipe == 0 ? PIPEASTAT : PIPEBSTAT); | |
993 | ||
300387c0 CW |
994 | /* Clear existing vblank status. Note this will clear any other |
995 | * sticky status fields as well. | |
996 | * | |
997 | * This races with i915_driver_irq_handler() with the result | |
998 | * that either function could miss a vblank event. Here it is not | |
999 | * fatal, as we will either wait upon the next vblank interrupt or | |
1000 | * timeout. Generally speaking intel_wait_for_vblank() is only | |
1001 | * called during modeset at which time the GPU should be idle and | |
1002 | * should *not* be performing page flips and thus not waiting on | |
1003 | * vblanks... | |
1004 | * Currently, the result of us stealing a vblank from the irq | |
1005 | * handler is that a single frame will be skipped during swapbuffers. | |
1006 | */ | |
1007 | I915_WRITE(pipestat_reg, | |
1008 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); | |
1009 | ||
9d0498a2 | 1010 | /* Wait for vblank interrupt bit to set */ |
481b6af3 CW |
1011 | if (wait_for(I915_READ(pipestat_reg) & |
1012 | PIPE_VBLANK_INTERRUPT_STATUS, | |
1013 | 50)) | |
9d0498a2 JB |
1014 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
1015 | } | |
1016 | ||
ab7ad7f6 KP |
1017 | /* |
1018 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
9d0498a2 JB |
1019 | * @dev: drm device |
1020 | * @pipe: pipe to wait for | |
1021 | * | |
1022 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
1023 | * spinning on the vblank interrupt status bit, since we won't actually | |
1024 | * see an interrupt when the pipe is disabled. | |
1025 | * | |
ab7ad7f6 KP |
1026 | * On Gen4 and above: |
1027 | * wait for the pipe register state bit to turn off | |
1028 | * | |
1029 | * Otherwise: | |
1030 | * wait for the display line value to settle (it usually | |
1031 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 1032 | * |
9d0498a2 | 1033 | */ |
58e10eb9 | 1034 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
9d0498a2 JB |
1035 | { |
1036 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ab7ad7f6 KP |
1037 | |
1038 | if (INTEL_INFO(dev)->gen >= 4) { | |
58e10eb9 | 1039 | int reg = PIPECONF(pipe); |
ab7ad7f6 KP |
1040 | |
1041 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
1042 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
1043 | 100)) | |
ab7ad7f6 KP |
1044 | DRM_DEBUG_KMS("pipe_off wait timed out\n"); |
1045 | } else { | |
1046 | u32 last_line; | |
58e10eb9 | 1047 | int reg = PIPEDSL(pipe); |
ab7ad7f6 KP |
1048 | unsigned long timeout = jiffies + msecs_to_jiffies(100); |
1049 | ||
1050 | /* Wait for the display line to settle */ | |
1051 | do { | |
58e10eb9 | 1052 | last_line = I915_READ(reg) & DSL_LINEMASK; |
ab7ad7f6 | 1053 | mdelay(5); |
58e10eb9 | 1054 | } while (((I915_READ(reg) & DSL_LINEMASK) != last_line) && |
ab7ad7f6 KP |
1055 | time_after(timeout, jiffies)); |
1056 | if (time_after(jiffies, timeout)) | |
1057 | DRM_DEBUG_KMS("pipe_off wait timed out\n"); | |
1058 | } | |
79e53945 JB |
1059 | } |
1060 | ||
b24e7179 JB |
1061 | static const char *state_string(bool enabled) |
1062 | { | |
1063 | return enabled ? "on" : "off"; | |
1064 | } | |
1065 | ||
1066 | /* Only for pre-ILK configs */ | |
1067 | static void assert_pll(struct drm_i915_private *dev_priv, | |
1068 | enum pipe pipe, bool state) | |
1069 | { | |
1070 | int reg; | |
1071 | u32 val; | |
1072 | bool cur_state; | |
1073 | ||
1074 | reg = DPLL(pipe); | |
1075 | val = I915_READ(reg); | |
1076 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1077 | WARN(cur_state != state, | |
1078 | "PLL state assertion failure (expected %s, current %s)\n", | |
1079 | state_string(state), state_string(cur_state)); | |
1080 | } | |
1081 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) | |
1082 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) | |
1083 | ||
040484af JB |
1084 | /* For ILK+ */ |
1085 | static void assert_pch_pll(struct drm_i915_private *dev_priv, | |
1086 | enum pipe pipe, bool state) | |
1087 | { | |
1088 | int reg; | |
1089 | u32 val; | |
1090 | bool cur_state; | |
1091 | ||
1092 | reg = PCH_DPLL(pipe); | |
1093 | val = I915_READ(reg); | |
1094 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1095 | WARN(cur_state != state, | |
1096 | "PCH PLL state assertion failure (expected %s, current %s)\n", | |
1097 | state_string(state), state_string(cur_state)); | |
1098 | } | |
1099 | #define assert_pch_pll_enabled(d, p) assert_pch_pll(d, p, true) | |
1100 | #define assert_pch_pll_disabled(d, p) assert_pch_pll(d, p, false) | |
1101 | ||
1102 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
1103 | enum pipe pipe, bool state) | |
1104 | { | |
1105 | int reg; | |
1106 | u32 val; | |
1107 | bool cur_state; | |
1108 | ||
1109 | reg = FDI_TX_CTL(pipe); | |
1110 | val = I915_READ(reg); | |
1111 | cur_state = !!(val & FDI_TX_ENABLE); | |
1112 | WARN(cur_state != state, | |
1113 | "FDI TX state assertion failure (expected %s, current %s)\n", | |
1114 | state_string(state), state_string(cur_state)); | |
1115 | } | |
1116 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
1117 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
1118 | ||
1119 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
1120 | enum pipe pipe, bool state) | |
1121 | { | |
1122 | int reg; | |
1123 | u32 val; | |
1124 | bool cur_state; | |
1125 | ||
1126 | reg = FDI_RX_CTL(pipe); | |
1127 | val = I915_READ(reg); | |
1128 | cur_state = !!(val & FDI_RX_ENABLE); | |
1129 | WARN(cur_state != state, | |
1130 | "FDI RX state assertion failure (expected %s, current %s)\n", | |
1131 | state_string(state), state_string(cur_state)); | |
1132 | } | |
1133 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
1134 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1135 | ||
1136 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1137 | enum pipe pipe) | |
1138 | { | |
1139 | int reg; | |
1140 | u32 val; | |
1141 | ||
1142 | /* ILK FDI PLL is always enabled */ | |
1143 | if (dev_priv->info->gen == 5) | |
1144 | return; | |
1145 | ||
1146 | reg = FDI_TX_CTL(pipe); | |
1147 | val = I915_READ(reg); | |
1148 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); | |
1149 | } | |
1150 | ||
1151 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, | |
1152 | enum pipe pipe) | |
1153 | { | |
1154 | int reg; | |
1155 | u32 val; | |
1156 | ||
1157 | reg = FDI_RX_CTL(pipe); | |
1158 | val = I915_READ(reg); | |
1159 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); | |
1160 | } | |
1161 | ||
ea0760cf JB |
1162 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1163 | enum pipe pipe) | |
1164 | { | |
1165 | int pp_reg, lvds_reg; | |
1166 | u32 val; | |
1167 | enum pipe panel_pipe = PIPE_A; | |
1168 | bool locked = locked; | |
1169 | ||
1170 | if (HAS_PCH_SPLIT(dev_priv->dev)) { | |
1171 | pp_reg = PCH_PP_CONTROL; | |
1172 | lvds_reg = PCH_LVDS; | |
1173 | } else { | |
1174 | pp_reg = PP_CONTROL; | |
1175 | lvds_reg = LVDS; | |
1176 | } | |
1177 | ||
1178 | val = I915_READ(pp_reg); | |
1179 | if (!(val & PANEL_POWER_ON) || | |
1180 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) | |
1181 | locked = false; | |
1182 | ||
1183 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) | |
1184 | panel_pipe = PIPE_B; | |
1185 | ||
1186 | WARN(panel_pipe == pipe && locked, | |
1187 | "panel assertion failure, pipe %c regs locked\n", | |
1188 | pipe ? 'B' : 'A'); | |
1189 | } | |
1190 | ||
63d7bbe9 JB |
1191 | static void assert_pipe(struct drm_i915_private *dev_priv, |
1192 | enum pipe pipe, bool state) | |
b24e7179 JB |
1193 | { |
1194 | int reg; | |
1195 | u32 val; | |
63d7bbe9 | 1196 | bool cur_state; |
b24e7179 JB |
1197 | |
1198 | reg = PIPECONF(pipe); | |
1199 | val = I915_READ(reg); | |
63d7bbe9 JB |
1200 | cur_state = !!(val & PIPECONF_ENABLE); |
1201 | WARN(cur_state != state, | |
1202 | "pipe %c assertion failure (expected %s, current %s)\n", | |
1203 | pipe ? 'B' : 'A', state_string(state), state_string(cur_state)); | |
b24e7179 | 1204 | } |
63d7bbe9 JB |
1205 | #define assert_pipe_enabled(d, p) assert_pipe(d, p, true) |
1206 | #define assert_pipe_disabled(d, p) assert_pipe(d, p, false) | |
b24e7179 JB |
1207 | |
1208 | static void assert_plane_enabled(struct drm_i915_private *dev_priv, | |
1209 | enum plane plane) | |
1210 | { | |
1211 | int reg; | |
1212 | u32 val; | |
1213 | ||
1214 | reg = DSPCNTR(plane); | |
1215 | val = I915_READ(reg); | |
1216 | WARN(!(val & DISPLAY_PLANE_ENABLE), | |
1217 | "plane %c assertion failure, should be active but is disabled\n", | |
1218 | plane ? 'B' : 'A'); | |
1219 | } | |
1220 | ||
1221 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, | |
1222 | enum pipe pipe) | |
1223 | { | |
1224 | int reg, i; | |
1225 | u32 val; | |
1226 | int cur_pipe; | |
1227 | ||
1228 | /* Need to check both planes against the pipe */ | |
1229 | for (i = 0; i < 2; i++) { | |
1230 | reg = DSPCNTR(i); | |
1231 | val = I915_READ(reg); | |
1232 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1233 | DISPPLANE_SEL_PIPE_SHIFT; | |
1234 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, | |
1235 | "plane %d assertion failure, should be off on pipe %c but is still active\n", | |
1236 | i, pipe ? 'B' : 'A'); | |
1237 | } | |
1238 | } | |
1239 | ||
92f2584a JB |
1240 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
1241 | { | |
1242 | u32 val; | |
1243 | bool enabled; | |
1244 | ||
1245 | val = I915_READ(PCH_DREF_CONTROL); | |
1246 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1247 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
1248 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); | |
1249 | } | |
1250 | ||
1251 | static void assert_transcoder_disabled(struct drm_i915_private *dev_priv, | |
1252 | enum pipe pipe) | |
1253 | { | |
1254 | int reg; | |
1255 | u32 val; | |
1256 | bool enabled; | |
1257 | ||
1258 | reg = TRANSCONF(pipe); | |
1259 | val = I915_READ(reg); | |
1260 | enabled = !!(val & TRANS_ENABLE); | |
1261 | WARN(enabled, "transcoder assertion failed, should be off on pipe %c but is still active\n", pipe ? 'B' :'A'); | |
1262 | } | |
1263 | ||
63d7bbe9 JB |
1264 | /** |
1265 | * intel_enable_pll - enable a PLL | |
1266 | * @dev_priv: i915 private structure | |
1267 | * @pipe: pipe PLL to enable | |
1268 | * | |
1269 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to | |
1270 | * make sure the PLL reg is writable first though, since the panel write | |
1271 | * protect mechanism may be enabled. | |
1272 | * | |
1273 | * Note! This is for pre-ILK only. | |
1274 | */ | |
1275 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1276 | { | |
1277 | int reg; | |
1278 | u32 val; | |
1279 | ||
1280 | /* No really, not for ILK+ */ | |
1281 | BUG_ON(dev_priv->info->gen >= 5); | |
1282 | ||
1283 | /* PLL is protected by panel, make sure we can write it */ | |
1284 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) | |
1285 | assert_panel_unlocked(dev_priv, pipe); | |
1286 | ||
1287 | reg = DPLL(pipe); | |
1288 | val = I915_READ(reg); | |
1289 | val |= DPLL_VCO_ENABLE; | |
1290 | ||
1291 | /* We do this three times for luck */ | |
1292 | I915_WRITE(reg, val); | |
1293 | POSTING_READ(reg); | |
1294 | udelay(150); /* wait for warmup */ | |
1295 | I915_WRITE(reg, val); | |
1296 | POSTING_READ(reg); | |
1297 | udelay(150); /* wait for warmup */ | |
1298 | I915_WRITE(reg, val); | |
1299 | POSTING_READ(reg); | |
1300 | udelay(150); /* wait for warmup */ | |
1301 | } | |
1302 | ||
1303 | /** | |
1304 | * intel_disable_pll - disable a PLL | |
1305 | * @dev_priv: i915 private structure | |
1306 | * @pipe: pipe PLL to disable | |
1307 | * | |
1308 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1309 | * | |
1310 | * Note! This is for pre-ILK only. | |
1311 | */ | |
1312 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1313 | { | |
1314 | int reg; | |
1315 | u32 val; | |
1316 | ||
1317 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1318 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1319 | return; | |
1320 | ||
1321 | /* Make sure the pipe isn't still relying on us */ | |
1322 | assert_pipe_disabled(dev_priv, pipe); | |
1323 | ||
1324 | reg = DPLL(pipe); | |
1325 | val = I915_READ(reg); | |
1326 | val &= ~DPLL_VCO_ENABLE; | |
1327 | I915_WRITE(reg, val); | |
1328 | POSTING_READ(reg); | |
1329 | } | |
1330 | ||
92f2584a JB |
1331 | /** |
1332 | * intel_enable_pch_pll - enable PCH PLL | |
1333 | * @dev_priv: i915 private structure | |
1334 | * @pipe: pipe PLL to enable | |
1335 | * | |
1336 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1337 | * drives the transcoder clock. | |
1338 | */ | |
1339 | static void intel_enable_pch_pll(struct drm_i915_private *dev_priv, | |
1340 | enum pipe pipe) | |
1341 | { | |
1342 | int reg; | |
1343 | u32 val; | |
1344 | ||
1345 | /* PCH only available on ILK+ */ | |
1346 | BUG_ON(dev_priv->info->gen < 5); | |
1347 | ||
1348 | /* PCH refclock must be enabled first */ | |
1349 | assert_pch_refclk_enabled(dev_priv); | |
1350 | ||
1351 | reg = PCH_DPLL(pipe); | |
1352 | val = I915_READ(reg); | |
1353 | val |= DPLL_VCO_ENABLE; | |
1354 | I915_WRITE(reg, val); | |
1355 | POSTING_READ(reg); | |
1356 | udelay(200); | |
1357 | } | |
1358 | ||
1359 | static void intel_disable_pch_pll(struct drm_i915_private *dev_priv, | |
1360 | enum pipe pipe) | |
1361 | { | |
1362 | int reg; | |
1363 | u32 val; | |
1364 | ||
1365 | /* PCH only available on ILK+ */ | |
1366 | BUG_ON(dev_priv->info->gen < 5); | |
1367 | ||
1368 | /* Make sure transcoder isn't still depending on us */ | |
1369 | assert_transcoder_disabled(dev_priv, pipe); | |
1370 | ||
1371 | reg = PCH_DPLL(pipe); | |
1372 | val = I915_READ(reg); | |
1373 | val &= ~DPLL_VCO_ENABLE; | |
1374 | I915_WRITE(reg, val); | |
1375 | POSTING_READ(reg); | |
1376 | udelay(200); | |
1377 | } | |
1378 | ||
040484af JB |
1379 | static void intel_enable_transcoder(struct drm_i915_private *dev_priv, |
1380 | enum pipe pipe) | |
1381 | { | |
1382 | int reg; | |
1383 | u32 val; | |
1384 | ||
1385 | /* PCH only available on ILK+ */ | |
1386 | BUG_ON(dev_priv->info->gen < 5); | |
1387 | ||
1388 | /* Make sure PCH DPLL is enabled */ | |
1389 | assert_pch_pll_enabled(dev_priv, pipe); | |
1390 | ||
1391 | /* FDI must be feeding us bits for PCH ports */ | |
1392 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1393 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1394 | ||
1395 | reg = TRANSCONF(pipe); | |
1396 | val = I915_READ(reg); | |
1397 | /* | |
1398 | * make the BPC in transcoder be consistent with | |
1399 | * that in pipeconf reg. | |
1400 | */ | |
1401 | val &= ~PIPE_BPC_MASK; | |
1402 | val |= I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK; | |
1403 | I915_WRITE(reg, val | TRANS_ENABLE); | |
1404 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
1405 | DRM_ERROR("failed to enable transcoder %d\n", pipe); | |
1406 | } | |
1407 | ||
1408 | static void intel_disable_transcoder(struct drm_i915_private *dev_priv, | |
1409 | enum pipe pipe) | |
1410 | { | |
1411 | int reg; | |
1412 | u32 val; | |
1413 | ||
1414 | /* FDI relies on the transcoder */ | |
1415 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1416 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1417 | ||
1418 | reg = TRANSCONF(pipe); | |
1419 | val = I915_READ(reg); | |
1420 | val &= ~TRANS_ENABLE; | |
1421 | I915_WRITE(reg, val); | |
1422 | /* wait for PCH transcoder off, transcoder state */ | |
1423 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
1424 | DRM_ERROR("failed to disable transcoder\n"); | |
1425 | } | |
1426 | ||
b24e7179 JB |
1427 | /** |
1428 | * intel_enable_pipe - enable a pipe, assertiing requirements | |
1429 | * @dev_priv: i915 private structure | |
1430 | * @pipe: pipe to enable | |
040484af | 1431 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
b24e7179 JB |
1432 | * |
1433 | * Enable @pipe, making sure that various hardware specific requirements | |
1434 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. | |
1435 | * | |
1436 | * @pipe should be %PIPE_A or %PIPE_B. | |
1437 | * | |
1438 | * Will wait until the pipe is actually running (i.e. first vblank) before | |
1439 | * returning. | |
1440 | */ | |
040484af JB |
1441 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
1442 | bool pch_port) | |
b24e7179 JB |
1443 | { |
1444 | int reg; | |
1445 | u32 val; | |
1446 | ||
1447 | /* | |
1448 | * A pipe without a PLL won't actually be able to drive bits from | |
1449 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
1450 | * need the check. | |
1451 | */ | |
1452 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
1453 | assert_pll_enabled(dev_priv, pipe); | |
040484af JB |
1454 | else { |
1455 | if (pch_port) { | |
1456 | /* if driving the PCH, we need FDI enabled */ | |
1457 | assert_fdi_rx_pll_enabled(dev_priv, pipe); | |
1458 | assert_fdi_tx_pll_enabled(dev_priv, pipe); | |
1459 | } | |
1460 | /* FIXME: assert CPU port conditions for SNB+ */ | |
1461 | } | |
b24e7179 JB |
1462 | |
1463 | reg = PIPECONF(pipe); | |
1464 | val = I915_READ(reg); | |
1465 | val |= PIPECONF_ENABLE; | |
1466 | I915_WRITE(reg, val); | |
1467 | POSTING_READ(reg); | |
1468 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1469 | } | |
1470 | ||
1471 | /** | |
1472 | * intel_disable_pipe - disable a pipe, assertiing requirements | |
1473 | * @dev_priv: i915 private structure | |
1474 | * @pipe: pipe to disable | |
1475 | * | |
1476 | * Disable @pipe, making sure that various hardware specific requirements | |
1477 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. | |
1478 | * | |
1479 | * @pipe should be %PIPE_A or %PIPE_B. | |
1480 | * | |
1481 | * Will wait until the pipe has shut down before returning. | |
1482 | */ | |
1483 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, | |
1484 | enum pipe pipe) | |
1485 | { | |
1486 | int reg; | |
1487 | u32 val; | |
1488 | ||
1489 | /* | |
1490 | * Make sure planes won't keep trying to pump pixels to us, | |
1491 | * or we might hang the display. | |
1492 | */ | |
1493 | assert_planes_disabled(dev_priv, pipe); | |
1494 | ||
1495 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1496 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1497 | return; | |
1498 | ||
1499 | reg = PIPECONF(pipe); | |
1500 | val = I915_READ(reg); | |
1501 | val &= ~PIPECONF_ENABLE; | |
1502 | I915_WRITE(reg, val); | |
1503 | POSTING_READ(reg); | |
1504 | intel_wait_for_pipe_off(dev_priv->dev, pipe); | |
1505 | } | |
1506 | ||
1507 | /** | |
1508 | * intel_enable_plane - enable a display plane on a given pipe | |
1509 | * @dev_priv: i915 private structure | |
1510 | * @plane: plane to enable | |
1511 | * @pipe: pipe being fed | |
1512 | * | |
1513 | * Enable @plane on @pipe, making sure that @pipe is running first. | |
1514 | */ | |
1515 | static void intel_enable_plane(struct drm_i915_private *dev_priv, | |
1516 | enum plane plane, enum pipe pipe) | |
1517 | { | |
1518 | int reg; | |
1519 | u32 val; | |
1520 | ||
1521 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
1522 | assert_pipe_enabled(dev_priv, pipe); | |
1523 | ||
1524 | reg = DSPCNTR(plane); | |
1525 | val = I915_READ(reg); | |
1526 | val |= DISPLAY_PLANE_ENABLE; | |
1527 | I915_WRITE(reg, val); | |
1528 | POSTING_READ(reg); | |
1529 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1530 | } | |
1531 | ||
1532 | /* | |
1533 | * Plane regs are double buffered, going from enabled->disabled needs a | |
1534 | * trigger in order to latch. The display address reg provides this. | |
1535 | */ | |
1536 | static void intel_flush_display_plane(struct drm_i915_private *dev_priv, | |
1537 | enum plane plane) | |
1538 | { | |
1539 | u32 reg = DSPADDR(plane); | |
1540 | I915_WRITE(reg, I915_READ(reg)); | |
1541 | } | |
1542 | ||
1543 | /** | |
1544 | * intel_disable_plane - disable a display plane | |
1545 | * @dev_priv: i915 private structure | |
1546 | * @plane: plane to disable | |
1547 | * @pipe: pipe consuming the data | |
1548 | * | |
1549 | * Disable @plane; should be an independent operation. | |
1550 | */ | |
1551 | static void intel_disable_plane(struct drm_i915_private *dev_priv, | |
1552 | enum plane plane, enum pipe pipe) | |
1553 | { | |
1554 | int reg; | |
1555 | u32 val; | |
1556 | ||
1557 | reg = DSPCNTR(plane); | |
1558 | val = I915_READ(reg); | |
1559 | val &= ~DISPLAY_PLANE_ENABLE; | |
1560 | I915_WRITE(reg, val); | |
1561 | POSTING_READ(reg); | |
1562 | intel_flush_display_plane(dev_priv, plane); | |
1563 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1564 | } | |
1565 | ||
80824003 JB |
1566 | static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
1567 | { | |
1568 | struct drm_device *dev = crtc->dev; | |
1569 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1570 | struct drm_framebuffer *fb = crtc->fb; | |
1571 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 1572 | struct drm_i915_gem_object *obj = intel_fb->obj; |
80824003 JB |
1573 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
1574 | int plane, i; | |
1575 | u32 fbc_ctl, fbc_ctl2; | |
1576 | ||
bed4a673 | 1577 | if (fb->pitch == dev_priv->cfb_pitch && |
05394f39 | 1578 | obj->fence_reg == dev_priv->cfb_fence && |
bed4a673 CW |
1579 | intel_crtc->plane == dev_priv->cfb_plane && |
1580 | I915_READ(FBC_CONTROL) & FBC_CTL_EN) | |
1581 | return; | |
1582 | ||
1583 | i8xx_disable_fbc(dev); | |
1584 | ||
80824003 JB |
1585 | dev_priv->cfb_pitch = dev_priv->cfb_size / FBC_LL_SIZE; |
1586 | ||
1587 | if (fb->pitch < dev_priv->cfb_pitch) | |
1588 | dev_priv->cfb_pitch = fb->pitch; | |
1589 | ||
1590 | /* FBC_CTL wants 64B units */ | |
1591 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; | |
05394f39 | 1592 | dev_priv->cfb_fence = obj->fence_reg; |
80824003 JB |
1593 | dev_priv->cfb_plane = intel_crtc->plane; |
1594 | plane = dev_priv->cfb_plane == 0 ? FBC_CTL_PLANEA : FBC_CTL_PLANEB; | |
1595 | ||
1596 | /* Clear old tags */ | |
1597 | for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++) | |
1598 | I915_WRITE(FBC_TAG + (i * 4), 0); | |
1599 | ||
1600 | /* Set it up... */ | |
1601 | fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | plane; | |
05394f39 | 1602 | if (obj->tiling_mode != I915_TILING_NONE) |
80824003 JB |
1603 | fbc_ctl2 |= FBC_CTL_CPU_FENCE; |
1604 | I915_WRITE(FBC_CONTROL2, fbc_ctl2); | |
1605 | I915_WRITE(FBC_FENCE_OFF, crtc->y); | |
1606 | ||
1607 | /* enable it... */ | |
1608 | fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC; | |
ee25df2b | 1609 | if (IS_I945GM(dev)) |
49677901 | 1610 | fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */ |
80824003 JB |
1611 | fbc_ctl |= (dev_priv->cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT; |
1612 | fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT; | |
05394f39 | 1613 | if (obj->tiling_mode != I915_TILING_NONE) |
80824003 JB |
1614 | fbc_ctl |= dev_priv->cfb_fence; |
1615 | I915_WRITE(FBC_CONTROL, fbc_ctl); | |
1616 | ||
28c97730 | 1617 | DRM_DEBUG_KMS("enabled FBC, pitch %ld, yoff %d, plane %d, ", |
5eddb70b | 1618 | dev_priv->cfb_pitch, crtc->y, dev_priv->cfb_plane); |
80824003 JB |
1619 | } |
1620 | ||
1621 | void i8xx_disable_fbc(struct drm_device *dev) | |
1622 | { | |
1623 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1624 | u32 fbc_ctl; | |
1625 | ||
1626 | /* Disable compression */ | |
1627 | fbc_ctl = I915_READ(FBC_CONTROL); | |
a5cad620 CW |
1628 | if ((fbc_ctl & FBC_CTL_EN) == 0) |
1629 | return; | |
1630 | ||
80824003 JB |
1631 | fbc_ctl &= ~FBC_CTL_EN; |
1632 | I915_WRITE(FBC_CONTROL, fbc_ctl); | |
1633 | ||
1634 | /* Wait for compressing bit to clear */ | |
481b6af3 | 1635 | if (wait_for((I915_READ(FBC_STATUS) & FBC_STAT_COMPRESSING) == 0, 10)) { |
913d8d11 CW |
1636 | DRM_DEBUG_KMS("FBC idle timed out\n"); |
1637 | return; | |
9517a92f | 1638 | } |
80824003 | 1639 | |
28c97730 | 1640 | DRM_DEBUG_KMS("disabled FBC\n"); |
80824003 JB |
1641 | } |
1642 | ||
ee5382ae | 1643 | static bool i8xx_fbc_enabled(struct drm_device *dev) |
80824003 | 1644 | { |
80824003 JB |
1645 | struct drm_i915_private *dev_priv = dev->dev_private; |
1646 | ||
1647 | return I915_READ(FBC_CONTROL) & FBC_CTL_EN; | |
1648 | } | |
1649 | ||
74dff282 JB |
1650 | static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
1651 | { | |
1652 | struct drm_device *dev = crtc->dev; | |
1653 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1654 | struct drm_framebuffer *fb = crtc->fb; | |
1655 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 1656 | struct drm_i915_gem_object *obj = intel_fb->obj; |
74dff282 | 1657 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5eddb70b | 1658 | int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB; |
74dff282 JB |
1659 | unsigned long stall_watermark = 200; |
1660 | u32 dpfc_ctl; | |
1661 | ||
bed4a673 CW |
1662 | dpfc_ctl = I915_READ(DPFC_CONTROL); |
1663 | if (dpfc_ctl & DPFC_CTL_EN) { | |
1664 | if (dev_priv->cfb_pitch == dev_priv->cfb_pitch / 64 - 1 && | |
05394f39 | 1665 | dev_priv->cfb_fence == obj->fence_reg && |
bed4a673 CW |
1666 | dev_priv->cfb_plane == intel_crtc->plane && |
1667 | dev_priv->cfb_y == crtc->y) | |
1668 | return; | |
1669 | ||
1670 | I915_WRITE(DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN); | |
1671 | POSTING_READ(DPFC_CONTROL); | |
1672 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
1673 | } | |
1674 | ||
74dff282 | 1675 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; |
05394f39 | 1676 | dev_priv->cfb_fence = obj->fence_reg; |
74dff282 | 1677 | dev_priv->cfb_plane = intel_crtc->plane; |
bed4a673 | 1678 | dev_priv->cfb_y = crtc->y; |
74dff282 JB |
1679 | |
1680 | dpfc_ctl = plane | DPFC_SR_EN | DPFC_CTL_LIMIT_1X; | |
05394f39 | 1681 | if (obj->tiling_mode != I915_TILING_NONE) { |
74dff282 JB |
1682 | dpfc_ctl |= DPFC_CTL_FENCE_EN | dev_priv->cfb_fence; |
1683 | I915_WRITE(DPFC_CHICKEN, DPFC_HT_MODIFY); | |
1684 | } else { | |
1685 | I915_WRITE(DPFC_CHICKEN, ~DPFC_HT_MODIFY); | |
1686 | } | |
1687 | ||
74dff282 JB |
1688 | I915_WRITE(DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN | |
1689 | (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) | | |
1690 | (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT)); | |
1691 | I915_WRITE(DPFC_FENCE_YOFF, crtc->y); | |
1692 | ||
1693 | /* enable it... */ | |
1694 | I915_WRITE(DPFC_CONTROL, I915_READ(DPFC_CONTROL) | DPFC_CTL_EN); | |
1695 | ||
28c97730 | 1696 | DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane); |
74dff282 JB |
1697 | } |
1698 | ||
1699 | void g4x_disable_fbc(struct drm_device *dev) | |
1700 | { | |
1701 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1702 | u32 dpfc_ctl; | |
1703 | ||
1704 | /* Disable compression */ | |
1705 | dpfc_ctl = I915_READ(DPFC_CONTROL); | |
bed4a673 CW |
1706 | if (dpfc_ctl & DPFC_CTL_EN) { |
1707 | dpfc_ctl &= ~DPFC_CTL_EN; | |
1708 | I915_WRITE(DPFC_CONTROL, dpfc_ctl); | |
74dff282 | 1709 | |
bed4a673 CW |
1710 | DRM_DEBUG_KMS("disabled FBC\n"); |
1711 | } | |
74dff282 JB |
1712 | } |
1713 | ||
ee5382ae | 1714 | static bool g4x_fbc_enabled(struct drm_device *dev) |
74dff282 | 1715 | { |
74dff282 JB |
1716 | struct drm_i915_private *dev_priv = dev->dev_private; |
1717 | ||
1718 | return I915_READ(DPFC_CONTROL) & DPFC_CTL_EN; | |
1719 | } | |
1720 | ||
b52eb4dc ZY |
1721 | static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
1722 | { | |
1723 | struct drm_device *dev = crtc->dev; | |
1724 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1725 | struct drm_framebuffer *fb = crtc->fb; | |
1726 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 1727 | struct drm_i915_gem_object *obj = intel_fb->obj; |
b52eb4dc | 1728 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5eddb70b | 1729 | int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB; |
b52eb4dc ZY |
1730 | unsigned long stall_watermark = 200; |
1731 | u32 dpfc_ctl; | |
1732 | ||
bed4a673 CW |
1733 | dpfc_ctl = I915_READ(ILK_DPFC_CONTROL); |
1734 | if (dpfc_ctl & DPFC_CTL_EN) { | |
1735 | if (dev_priv->cfb_pitch == dev_priv->cfb_pitch / 64 - 1 && | |
05394f39 | 1736 | dev_priv->cfb_fence == obj->fence_reg && |
bed4a673 | 1737 | dev_priv->cfb_plane == intel_crtc->plane && |
05394f39 | 1738 | dev_priv->cfb_offset == obj->gtt_offset && |
bed4a673 CW |
1739 | dev_priv->cfb_y == crtc->y) |
1740 | return; | |
1741 | ||
1742 | I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN); | |
1743 | POSTING_READ(ILK_DPFC_CONTROL); | |
1744 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
1745 | } | |
1746 | ||
b52eb4dc | 1747 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; |
05394f39 | 1748 | dev_priv->cfb_fence = obj->fence_reg; |
b52eb4dc | 1749 | dev_priv->cfb_plane = intel_crtc->plane; |
05394f39 | 1750 | dev_priv->cfb_offset = obj->gtt_offset; |
bed4a673 | 1751 | dev_priv->cfb_y = crtc->y; |
b52eb4dc | 1752 | |
b52eb4dc ZY |
1753 | dpfc_ctl &= DPFC_RESERVED; |
1754 | dpfc_ctl |= (plane | DPFC_CTL_LIMIT_1X); | |
05394f39 | 1755 | if (obj->tiling_mode != I915_TILING_NONE) { |
b52eb4dc ZY |
1756 | dpfc_ctl |= (DPFC_CTL_FENCE_EN | dev_priv->cfb_fence); |
1757 | I915_WRITE(ILK_DPFC_CHICKEN, DPFC_HT_MODIFY); | |
1758 | } else { | |
1759 | I915_WRITE(ILK_DPFC_CHICKEN, ~DPFC_HT_MODIFY); | |
1760 | } | |
1761 | ||
b52eb4dc ZY |
1762 | I915_WRITE(ILK_DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN | |
1763 | (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) | | |
1764 | (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT)); | |
1765 | I915_WRITE(ILK_DPFC_FENCE_YOFF, crtc->y); | |
05394f39 | 1766 | I915_WRITE(ILK_FBC_RT_BASE, obj->gtt_offset | ILK_FBC_RT_VALID); |
b52eb4dc | 1767 | /* enable it... */ |
bed4a673 | 1768 | I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN); |
b52eb4dc | 1769 | |
9c04f015 YL |
1770 | if (IS_GEN6(dev)) { |
1771 | I915_WRITE(SNB_DPFC_CTL_SA, | |
1772 | SNB_CPU_FENCE_ENABLE | dev_priv->cfb_fence); | |
1773 | I915_WRITE(DPFC_CPU_FENCE_OFFSET, crtc->y); | |
1774 | } | |
1775 | ||
b52eb4dc ZY |
1776 | DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane); |
1777 | } | |
1778 | ||
1779 | void ironlake_disable_fbc(struct drm_device *dev) | |
1780 | { | |
1781 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1782 | u32 dpfc_ctl; | |
1783 | ||
1784 | /* Disable compression */ | |
1785 | dpfc_ctl = I915_READ(ILK_DPFC_CONTROL); | |
bed4a673 CW |
1786 | if (dpfc_ctl & DPFC_CTL_EN) { |
1787 | dpfc_ctl &= ~DPFC_CTL_EN; | |
1788 | I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl); | |
b52eb4dc | 1789 | |
bed4a673 CW |
1790 | DRM_DEBUG_KMS("disabled FBC\n"); |
1791 | } | |
b52eb4dc ZY |
1792 | } |
1793 | ||
1794 | static bool ironlake_fbc_enabled(struct drm_device *dev) | |
1795 | { | |
1796 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1797 | ||
1798 | return I915_READ(ILK_DPFC_CONTROL) & DPFC_CTL_EN; | |
1799 | } | |
1800 | ||
ee5382ae AJ |
1801 | bool intel_fbc_enabled(struct drm_device *dev) |
1802 | { | |
1803 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1804 | ||
1805 | if (!dev_priv->display.fbc_enabled) | |
1806 | return false; | |
1807 | ||
1808 | return dev_priv->display.fbc_enabled(dev); | |
1809 | } | |
1810 | ||
1811 | void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval) | |
1812 | { | |
1813 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
1814 | ||
1815 | if (!dev_priv->display.enable_fbc) | |
1816 | return; | |
1817 | ||
1818 | dev_priv->display.enable_fbc(crtc, interval); | |
1819 | } | |
1820 | ||
1821 | void intel_disable_fbc(struct drm_device *dev) | |
1822 | { | |
1823 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1824 | ||
1825 | if (!dev_priv->display.disable_fbc) | |
1826 | return; | |
1827 | ||
1828 | dev_priv->display.disable_fbc(dev); | |
1829 | } | |
1830 | ||
80824003 JB |
1831 | /** |
1832 | * intel_update_fbc - enable/disable FBC as needed | |
bed4a673 | 1833 | * @dev: the drm_device |
80824003 JB |
1834 | * |
1835 | * Set up the framebuffer compression hardware at mode set time. We | |
1836 | * enable it if possible: | |
1837 | * - plane A only (on pre-965) | |
1838 | * - no pixel mulitply/line duplication | |
1839 | * - no alpha buffer discard | |
1840 | * - no dual wide | |
1841 | * - framebuffer <= 2048 in width, 1536 in height | |
1842 | * | |
1843 | * We can't assume that any compression will take place (worst case), | |
1844 | * so the compressed buffer has to be the same size as the uncompressed | |
1845 | * one. It also must reside (along with the line length buffer) in | |
1846 | * stolen memory. | |
1847 | * | |
1848 | * We need to enable/disable FBC on a global basis. | |
1849 | */ | |
bed4a673 | 1850 | static void intel_update_fbc(struct drm_device *dev) |
80824003 | 1851 | { |
80824003 | 1852 | struct drm_i915_private *dev_priv = dev->dev_private; |
bed4a673 CW |
1853 | struct drm_crtc *crtc = NULL, *tmp_crtc; |
1854 | struct intel_crtc *intel_crtc; | |
1855 | struct drm_framebuffer *fb; | |
80824003 | 1856 | struct intel_framebuffer *intel_fb; |
05394f39 | 1857 | struct drm_i915_gem_object *obj; |
9c928d16 JB |
1858 | |
1859 | DRM_DEBUG_KMS("\n"); | |
80824003 JB |
1860 | |
1861 | if (!i915_powersave) | |
1862 | return; | |
1863 | ||
ee5382ae | 1864 | if (!I915_HAS_FBC(dev)) |
e70236a8 JB |
1865 | return; |
1866 | ||
80824003 JB |
1867 | /* |
1868 | * If FBC is already on, we just have to verify that we can | |
1869 | * keep it that way... | |
1870 | * Need to disable if: | |
9c928d16 | 1871 | * - more than one pipe is active |
80824003 JB |
1872 | * - changing FBC params (stride, fence, mode) |
1873 | * - new fb is too large to fit in compressed buffer | |
1874 | * - going to an unsupported config (interlace, pixel multiply, etc.) | |
1875 | */ | |
9c928d16 | 1876 | list_for_each_entry(tmp_crtc, &dev->mode_config.crtc_list, head) { |
bed4a673 CW |
1877 | if (tmp_crtc->enabled) { |
1878 | if (crtc) { | |
1879 | DRM_DEBUG_KMS("more than one pipe active, disabling compression\n"); | |
1880 | dev_priv->no_fbc_reason = FBC_MULTIPLE_PIPES; | |
1881 | goto out_disable; | |
1882 | } | |
1883 | crtc = tmp_crtc; | |
1884 | } | |
9c928d16 | 1885 | } |
bed4a673 CW |
1886 | |
1887 | if (!crtc || crtc->fb == NULL) { | |
1888 | DRM_DEBUG_KMS("no output, disabling\n"); | |
1889 | dev_priv->no_fbc_reason = FBC_NO_OUTPUT; | |
9c928d16 JB |
1890 | goto out_disable; |
1891 | } | |
bed4a673 CW |
1892 | |
1893 | intel_crtc = to_intel_crtc(crtc); | |
1894 | fb = crtc->fb; | |
1895 | intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 1896 | obj = intel_fb->obj; |
bed4a673 | 1897 | |
05394f39 | 1898 | if (intel_fb->obj->base.size > dev_priv->cfb_size) { |
28c97730 | 1899 | DRM_DEBUG_KMS("framebuffer too large, disabling " |
5eddb70b | 1900 | "compression\n"); |
b5e50c3f | 1901 | dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL; |
80824003 JB |
1902 | goto out_disable; |
1903 | } | |
bed4a673 CW |
1904 | if ((crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) || |
1905 | (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN)) { | |
28c97730 | 1906 | DRM_DEBUG_KMS("mode incompatible with compression, " |
5eddb70b | 1907 | "disabling\n"); |
b5e50c3f | 1908 | dev_priv->no_fbc_reason = FBC_UNSUPPORTED_MODE; |
80824003 JB |
1909 | goto out_disable; |
1910 | } | |
bed4a673 CW |
1911 | if ((crtc->mode.hdisplay > 2048) || |
1912 | (crtc->mode.vdisplay > 1536)) { | |
28c97730 | 1913 | DRM_DEBUG_KMS("mode too large for compression, disabling\n"); |
b5e50c3f | 1914 | dev_priv->no_fbc_reason = FBC_MODE_TOO_LARGE; |
80824003 JB |
1915 | goto out_disable; |
1916 | } | |
bed4a673 | 1917 | if ((IS_I915GM(dev) || IS_I945GM(dev)) && intel_crtc->plane != 0) { |
28c97730 | 1918 | DRM_DEBUG_KMS("plane not 0, disabling compression\n"); |
b5e50c3f | 1919 | dev_priv->no_fbc_reason = FBC_BAD_PLANE; |
80824003 JB |
1920 | goto out_disable; |
1921 | } | |
05394f39 | 1922 | if (obj->tiling_mode != I915_TILING_X) { |
28c97730 | 1923 | DRM_DEBUG_KMS("framebuffer not tiled, disabling compression\n"); |
b5e50c3f | 1924 | dev_priv->no_fbc_reason = FBC_NOT_TILED; |
80824003 JB |
1925 | goto out_disable; |
1926 | } | |
1927 | ||
c924b934 JW |
1928 | /* If the kernel debugger is active, always disable compression */ |
1929 | if (in_dbg_master()) | |
1930 | goto out_disable; | |
1931 | ||
bed4a673 | 1932 | intel_enable_fbc(crtc, 500); |
80824003 JB |
1933 | return; |
1934 | ||
1935 | out_disable: | |
80824003 | 1936 | /* Multiple disables should be harmless */ |
a939406f CW |
1937 | if (intel_fbc_enabled(dev)) { |
1938 | DRM_DEBUG_KMS("unsupported config, disabling FBC\n"); | |
ee5382ae | 1939 | intel_disable_fbc(dev); |
a939406f | 1940 | } |
80824003 JB |
1941 | } |
1942 | ||
127bd2ac | 1943 | int |
48b956c5 | 1944 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
05394f39 | 1945 | struct drm_i915_gem_object *obj, |
919926ae | 1946 | struct intel_ring_buffer *pipelined) |
6b95a207 | 1947 | { |
6b95a207 KH |
1948 | u32 alignment; |
1949 | int ret; | |
1950 | ||
05394f39 | 1951 | switch (obj->tiling_mode) { |
6b95a207 | 1952 | case I915_TILING_NONE: |
534843da CW |
1953 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
1954 | alignment = 128 * 1024; | |
a6c45cf0 | 1955 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
1956 | alignment = 4 * 1024; |
1957 | else | |
1958 | alignment = 64 * 1024; | |
6b95a207 KH |
1959 | break; |
1960 | case I915_TILING_X: | |
1961 | /* pin() will align the object as required by fence */ | |
1962 | alignment = 0; | |
1963 | break; | |
1964 | case I915_TILING_Y: | |
1965 | /* FIXME: Is this true? */ | |
1966 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); | |
1967 | return -EINVAL; | |
1968 | default: | |
1969 | BUG(); | |
1970 | } | |
1971 | ||
75e9e915 | 1972 | ret = i915_gem_object_pin(obj, alignment, true); |
48b956c5 | 1973 | if (ret) |
6b95a207 KH |
1974 | return ret; |
1975 | ||
48b956c5 CW |
1976 | ret = i915_gem_object_set_to_display_plane(obj, pipelined); |
1977 | if (ret) | |
1978 | goto err_unpin; | |
7213342d | 1979 | |
6b95a207 KH |
1980 | /* Install a fence for tiled scan-out. Pre-i965 always needs a |
1981 | * fence, whereas 965+ only requires a fence if using | |
1982 | * framebuffer compression. For simplicity, we always install | |
1983 | * a fence as the cost is not that onerous. | |
1984 | */ | |
05394f39 | 1985 | if (obj->tiling_mode != I915_TILING_NONE) { |
d9e86c0e | 1986 | ret = i915_gem_object_get_fence(obj, pipelined, false); |
48b956c5 CW |
1987 | if (ret) |
1988 | goto err_unpin; | |
6b95a207 KH |
1989 | } |
1990 | ||
1991 | return 0; | |
48b956c5 CW |
1992 | |
1993 | err_unpin: | |
1994 | i915_gem_object_unpin(obj); | |
1995 | return ret; | |
6b95a207 KH |
1996 | } |
1997 | ||
81255565 JB |
1998 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ |
1999 | static int | |
2000 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
21c74a8e | 2001 | int x, int y, enum mode_set_atomic state) |
81255565 JB |
2002 | { |
2003 | struct drm_device *dev = crtc->dev; | |
2004 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2005 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2006 | struct intel_framebuffer *intel_fb; | |
05394f39 | 2007 | struct drm_i915_gem_object *obj; |
81255565 JB |
2008 | int plane = intel_crtc->plane; |
2009 | unsigned long Start, Offset; | |
81255565 | 2010 | u32 dspcntr; |
5eddb70b | 2011 | u32 reg; |
81255565 JB |
2012 | |
2013 | switch (plane) { | |
2014 | case 0: | |
2015 | case 1: | |
2016 | break; | |
2017 | default: | |
2018 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
2019 | return -EINVAL; | |
2020 | } | |
2021 | ||
2022 | intel_fb = to_intel_framebuffer(fb); | |
2023 | obj = intel_fb->obj; | |
81255565 | 2024 | |
5eddb70b CW |
2025 | reg = DSPCNTR(plane); |
2026 | dspcntr = I915_READ(reg); | |
81255565 JB |
2027 | /* Mask out pixel format bits in case we change it */ |
2028 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
2029 | switch (fb->bits_per_pixel) { | |
2030 | case 8: | |
2031 | dspcntr |= DISPPLANE_8BPP; | |
2032 | break; | |
2033 | case 16: | |
2034 | if (fb->depth == 15) | |
2035 | dspcntr |= DISPPLANE_15_16BPP; | |
2036 | else | |
2037 | dspcntr |= DISPPLANE_16BPP; | |
2038 | break; | |
2039 | case 24: | |
2040 | case 32: | |
2041 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
2042 | break; | |
2043 | default: | |
2044 | DRM_ERROR("Unknown color depth\n"); | |
2045 | return -EINVAL; | |
2046 | } | |
a6c45cf0 | 2047 | if (INTEL_INFO(dev)->gen >= 4) { |
05394f39 | 2048 | if (obj->tiling_mode != I915_TILING_NONE) |
81255565 JB |
2049 | dspcntr |= DISPPLANE_TILED; |
2050 | else | |
2051 | dspcntr &= ~DISPPLANE_TILED; | |
2052 | } | |
2053 | ||
4e6cfefc | 2054 | if (HAS_PCH_SPLIT(dev)) |
81255565 JB |
2055 | /* must disable */ |
2056 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2057 | ||
5eddb70b | 2058 | I915_WRITE(reg, dspcntr); |
81255565 | 2059 | |
05394f39 | 2060 | Start = obj->gtt_offset; |
81255565 JB |
2061 | Offset = y * fb->pitch + x * (fb->bits_per_pixel / 8); |
2062 | ||
4e6cfefc CW |
2063 | DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n", |
2064 | Start, Offset, x, y, fb->pitch); | |
5eddb70b | 2065 | I915_WRITE(DSPSTRIDE(plane), fb->pitch); |
a6c45cf0 | 2066 | if (INTEL_INFO(dev)->gen >= 4) { |
5eddb70b CW |
2067 | I915_WRITE(DSPSURF(plane), Start); |
2068 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); | |
2069 | I915_WRITE(DSPADDR(plane), Offset); | |
2070 | } else | |
2071 | I915_WRITE(DSPADDR(plane), Start + Offset); | |
2072 | POSTING_READ(reg); | |
81255565 | 2073 | |
bed4a673 | 2074 | intel_update_fbc(dev); |
3dec0095 | 2075 | intel_increase_pllclock(crtc); |
81255565 JB |
2076 | |
2077 | return 0; | |
2078 | } | |
2079 | ||
5c3b82e2 | 2080 | static int |
3c4fdcfb KH |
2081 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
2082 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
2083 | { |
2084 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
2085 | struct drm_i915_master_private *master_priv; |
2086 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5c3b82e2 | 2087 | int ret; |
79e53945 JB |
2088 | |
2089 | /* no fb bound */ | |
2090 | if (!crtc->fb) { | |
28c97730 | 2091 | DRM_DEBUG_KMS("No FB bound\n"); |
5c3b82e2 CW |
2092 | return 0; |
2093 | } | |
2094 | ||
265db958 | 2095 | switch (intel_crtc->plane) { |
5c3b82e2 CW |
2096 | case 0: |
2097 | case 1: | |
2098 | break; | |
2099 | default: | |
5c3b82e2 | 2100 | return -EINVAL; |
79e53945 JB |
2101 | } |
2102 | ||
5c3b82e2 | 2103 | mutex_lock(&dev->struct_mutex); |
265db958 CW |
2104 | ret = intel_pin_and_fence_fb_obj(dev, |
2105 | to_intel_framebuffer(crtc->fb)->obj, | |
919926ae | 2106 | NULL); |
5c3b82e2 CW |
2107 | if (ret != 0) { |
2108 | mutex_unlock(&dev->struct_mutex); | |
2109 | return ret; | |
2110 | } | |
79e53945 | 2111 | |
265db958 | 2112 | if (old_fb) { |
e6c3a2a6 | 2113 | struct drm_i915_private *dev_priv = dev->dev_private; |
05394f39 | 2114 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; |
265db958 | 2115 | |
e6c3a2a6 | 2116 | wait_event(dev_priv->pending_flip_queue, |
05394f39 | 2117 | atomic_read(&obj->pending_flip) == 0); |
85345517 CW |
2118 | |
2119 | /* Big Hammer, we also need to ensure that any pending | |
2120 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
2121 | * current scanout is retired before unpinning the old | |
2122 | * framebuffer. | |
2123 | */ | |
05394f39 | 2124 | ret = i915_gem_object_flush_gpu(obj, false); |
85345517 CW |
2125 | if (ret) { |
2126 | i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj); | |
2127 | mutex_unlock(&dev->struct_mutex); | |
2128 | return ret; | |
2129 | } | |
265db958 CW |
2130 | } |
2131 | ||
21c74a8e JW |
2132 | ret = intel_pipe_set_base_atomic(crtc, crtc->fb, x, y, |
2133 | LEAVE_ATOMIC_MODE_SET); | |
4e6cfefc | 2134 | if (ret) { |
265db958 | 2135 | i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj); |
5c3b82e2 | 2136 | mutex_unlock(&dev->struct_mutex); |
4e6cfefc | 2137 | return ret; |
79e53945 | 2138 | } |
3c4fdcfb | 2139 | |
b7f1de28 CW |
2140 | if (old_fb) { |
2141 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
265db958 | 2142 | i915_gem_object_unpin(to_intel_framebuffer(old_fb)->obj); |
b7f1de28 | 2143 | } |
652c393a | 2144 | |
5c3b82e2 | 2145 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
2146 | |
2147 | if (!dev->primary->master) | |
5c3b82e2 | 2148 | return 0; |
79e53945 JB |
2149 | |
2150 | master_priv = dev->primary->master->driver_priv; | |
2151 | if (!master_priv->sarea_priv) | |
5c3b82e2 | 2152 | return 0; |
79e53945 | 2153 | |
265db958 | 2154 | if (intel_crtc->pipe) { |
79e53945 JB |
2155 | master_priv->sarea_priv->pipeB_x = x; |
2156 | master_priv->sarea_priv->pipeB_y = y; | |
5c3b82e2 CW |
2157 | } else { |
2158 | master_priv->sarea_priv->pipeA_x = x; | |
2159 | master_priv->sarea_priv->pipeA_y = y; | |
79e53945 | 2160 | } |
5c3b82e2 CW |
2161 | |
2162 | return 0; | |
79e53945 JB |
2163 | } |
2164 | ||
5eddb70b | 2165 | static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock) |
32f9d658 ZW |
2166 | { |
2167 | struct drm_device *dev = crtc->dev; | |
2168 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2169 | u32 dpa_ctl; | |
2170 | ||
28c97730 | 2171 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
32f9d658 ZW |
2172 | dpa_ctl = I915_READ(DP_A); |
2173 | dpa_ctl &= ~DP_PLL_FREQ_MASK; | |
2174 | ||
2175 | if (clock < 200000) { | |
2176 | u32 temp; | |
2177 | dpa_ctl |= DP_PLL_FREQ_160MHZ; | |
2178 | /* workaround for 160Mhz: | |
2179 | 1) program 0x4600c bits 15:0 = 0x8124 | |
2180 | 2) program 0x46010 bit 0 = 1 | |
2181 | 3) program 0x46034 bit 24 = 1 | |
2182 | 4) program 0x64000 bit 14 = 1 | |
2183 | */ | |
2184 | temp = I915_READ(0x4600c); | |
2185 | temp &= 0xffff0000; | |
2186 | I915_WRITE(0x4600c, temp | 0x8124); | |
2187 | ||
2188 | temp = I915_READ(0x46010); | |
2189 | I915_WRITE(0x46010, temp | 1); | |
2190 | ||
2191 | temp = I915_READ(0x46034); | |
2192 | I915_WRITE(0x46034, temp | (1 << 24)); | |
2193 | } else { | |
2194 | dpa_ctl |= DP_PLL_FREQ_270MHZ; | |
2195 | } | |
2196 | I915_WRITE(DP_A, dpa_ctl); | |
2197 | ||
5eddb70b | 2198 | POSTING_READ(DP_A); |
32f9d658 ZW |
2199 | udelay(500); |
2200 | } | |
2201 | ||
5e84e1a4 ZW |
2202 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
2203 | { | |
2204 | struct drm_device *dev = crtc->dev; | |
2205 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2206 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2207 | int pipe = intel_crtc->pipe; | |
2208 | u32 reg, temp; | |
2209 | ||
2210 | /* enable normal train */ | |
2211 | reg = FDI_TX_CTL(pipe); | |
2212 | temp = I915_READ(reg); | |
2213 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2214 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
2215 | I915_WRITE(reg, temp); | |
2216 | ||
2217 | reg = FDI_RX_CTL(pipe); | |
2218 | temp = I915_READ(reg); | |
2219 | if (HAS_PCH_CPT(dev)) { | |
2220 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2221 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2222 | } else { | |
2223 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2224 | temp |= FDI_LINK_TRAIN_NONE; | |
2225 | } | |
2226 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2227 | ||
2228 | /* wait one idle pattern time */ | |
2229 | POSTING_READ(reg); | |
2230 | udelay(1000); | |
2231 | } | |
2232 | ||
8db9d77b ZW |
2233 | /* The FDI link training functions for ILK/Ibexpeak. */ |
2234 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
2235 | { | |
2236 | struct drm_device *dev = crtc->dev; | |
2237 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2238 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2239 | int pipe = intel_crtc->pipe; | |
0fc932b8 | 2240 | int plane = intel_crtc->plane; |
5eddb70b | 2241 | u32 reg, temp, tries; |
8db9d77b | 2242 | |
0fc932b8 JB |
2243 | /* FDI needs bits from pipe & plane first */ |
2244 | assert_pipe_enabled(dev_priv, pipe); | |
2245 | assert_plane_enabled(dev_priv, plane); | |
2246 | ||
e1a44743 AJ |
2247 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2248 | for train result */ | |
5eddb70b CW |
2249 | reg = FDI_RX_IMR(pipe); |
2250 | temp = I915_READ(reg); | |
e1a44743 AJ |
2251 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2252 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2253 | I915_WRITE(reg, temp); |
2254 | I915_READ(reg); | |
e1a44743 AJ |
2255 | udelay(150); |
2256 | ||
8db9d77b | 2257 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2258 | reg = FDI_TX_CTL(pipe); |
2259 | temp = I915_READ(reg); | |
77ffb597 AJ |
2260 | temp &= ~(7 << 19); |
2261 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2262 | temp &= ~FDI_LINK_TRAIN_NONE; |
2263 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 2264 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2265 | |
5eddb70b CW |
2266 | reg = FDI_RX_CTL(pipe); |
2267 | temp = I915_READ(reg); | |
8db9d77b ZW |
2268 | temp &= ~FDI_LINK_TRAIN_NONE; |
2269 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
2270 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2271 | ||
2272 | POSTING_READ(reg); | |
8db9d77b ZW |
2273 | udelay(150); |
2274 | ||
5b2adf89 JB |
2275 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
2276 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_ENABLE); | |
2277 | ||
5eddb70b | 2278 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2279 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2280 | temp = I915_READ(reg); |
8db9d77b ZW |
2281 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2282 | ||
2283 | if ((temp & FDI_RX_BIT_LOCK)) { | |
2284 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 2285 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
2286 | break; |
2287 | } | |
8db9d77b | 2288 | } |
e1a44743 | 2289 | if (tries == 5) |
5eddb70b | 2290 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2291 | |
2292 | /* Train 2 */ | |
5eddb70b CW |
2293 | reg = FDI_TX_CTL(pipe); |
2294 | temp = I915_READ(reg); | |
8db9d77b ZW |
2295 | temp &= ~FDI_LINK_TRAIN_NONE; |
2296 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2297 | I915_WRITE(reg, temp); |
8db9d77b | 2298 | |
5eddb70b CW |
2299 | reg = FDI_RX_CTL(pipe); |
2300 | temp = I915_READ(reg); | |
8db9d77b ZW |
2301 | temp &= ~FDI_LINK_TRAIN_NONE; |
2302 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2303 | I915_WRITE(reg, temp); |
8db9d77b | 2304 | |
5eddb70b CW |
2305 | POSTING_READ(reg); |
2306 | udelay(150); | |
8db9d77b | 2307 | |
5eddb70b | 2308 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2309 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2310 | temp = I915_READ(reg); |
8db9d77b ZW |
2311 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2312 | ||
2313 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 2314 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
2315 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
2316 | break; | |
2317 | } | |
8db9d77b | 2318 | } |
e1a44743 | 2319 | if (tries == 5) |
5eddb70b | 2320 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2321 | |
2322 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 2323 | |
8db9d77b ZW |
2324 | } |
2325 | ||
5eddb70b | 2326 | static const int const snb_b_fdi_train_param [] = { |
8db9d77b ZW |
2327 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2328 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
2329 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
2330 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
2331 | }; | |
2332 | ||
2333 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
2334 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
2335 | { | |
2336 | struct drm_device *dev = crtc->dev; | |
2337 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2338 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2339 | int pipe = intel_crtc->pipe; | |
5eddb70b | 2340 | u32 reg, temp, i; |
8db9d77b | 2341 | |
e1a44743 AJ |
2342 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2343 | for train result */ | |
5eddb70b CW |
2344 | reg = FDI_RX_IMR(pipe); |
2345 | temp = I915_READ(reg); | |
e1a44743 AJ |
2346 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2347 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2348 | I915_WRITE(reg, temp); |
2349 | ||
2350 | POSTING_READ(reg); | |
e1a44743 AJ |
2351 | udelay(150); |
2352 | ||
8db9d77b | 2353 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2354 | reg = FDI_TX_CTL(pipe); |
2355 | temp = I915_READ(reg); | |
77ffb597 AJ |
2356 | temp &= ~(7 << 19); |
2357 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2358 | temp &= ~FDI_LINK_TRAIN_NONE; |
2359 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2360 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2361 | /* SNB-B */ | |
2362 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 2363 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2364 | |
5eddb70b CW |
2365 | reg = FDI_RX_CTL(pipe); |
2366 | temp = I915_READ(reg); | |
8db9d77b ZW |
2367 | if (HAS_PCH_CPT(dev)) { |
2368 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2369 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2370 | } else { | |
2371 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2372 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2373 | } | |
5eddb70b CW |
2374 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2375 | ||
2376 | POSTING_READ(reg); | |
8db9d77b ZW |
2377 | udelay(150); |
2378 | ||
8db9d77b | 2379 | for (i = 0; i < 4; i++ ) { |
5eddb70b CW |
2380 | reg = FDI_TX_CTL(pipe); |
2381 | temp = I915_READ(reg); | |
8db9d77b ZW |
2382 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2383 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2384 | I915_WRITE(reg, temp); |
2385 | ||
2386 | POSTING_READ(reg); | |
8db9d77b ZW |
2387 | udelay(500); |
2388 | ||
5eddb70b CW |
2389 | reg = FDI_RX_IIR(pipe); |
2390 | temp = I915_READ(reg); | |
8db9d77b ZW |
2391 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2392 | ||
2393 | if (temp & FDI_RX_BIT_LOCK) { | |
5eddb70b | 2394 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
2395 | DRM_DEBUG_KMS("FDI train 1 done.\n"); |
2396 | break; | |
2397 | } | |
2398 | } | |
2399 | if (i == 4) | |
5eddb70b | 2400 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2401 | |
2402 | /* Train 2 */ | |
5eddb70b CW |
2403 | reg = FDI_TX_CTL(pipe); |
2404 | temp = I915_READ(reg); | |
8db9d77b ZW |
2405 | temp &= ~FDI_LINK_TRAIN_NONE; |
2406 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2407 | if (IS_GEN6(dev)) { | |
2408 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2409 | /* SNB-B */ | |
2410 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2411 | } | |
5eddb70b | 2412 | I915_WRITE(reg, temp); |
8db9d77b | 2413 | |
5eddb70b CW |
2414 | reg = FDI_RX_CTL(pipe); |
2415 | temp = I915_READ(reg); | |
8db9d77b ZW |
2416 | if (HAS_PCH_CPT(dev)) { |
2417 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2418 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2419 | } else { | |
2420 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2421 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2422 | } | |
5eddb70b CW |
2423 | I915_WRITE(reg, temp); |
2424 | ||
2425 | POSTING_READ(reg); | |
8db9d77b ZW |
2426 | udelay(150); |
2427 | ||
2428 | for (i = 0; i < 4; i++ ) { | |
5eddb70b CW |
2429 | reg = FDI_TX_CTL(pipe); |
2430 | temp = I915_READ(reg); | |
8db9d77b ZW |
2431 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2432 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2433 | I915_WRITE(reg, temp); |
2434 | ||
2435 | POSTING_READ(reg); | |
8db9d77b ZW |
2436 | udelay(500); |
2437 | ||
5eddb70b CW |
2438 | reg = FDI_RX_IIR(pipe); |
2439 | temp = I915_READ(reg); | |
8db9d77b ZW |
2440 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2441 | ||
2442 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 2443 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
2444 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
2445 | break; | |
2446 | } | |
2447 | } | |
2448 | if (i == 4) | |
5eddb70b | 2449 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2450 | |
2451 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2452 | } | |
2453 | ||
0e23b99d | 2454 | static void ironlake_fdi_enable(struct drm_crtc *crtc) |
2c07245f ZW |
2455 | { |
2456 | struct drm_device *dev = crtc->dev; | |
2457 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2458 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2459 | int pipe = intel_crtc->pipe; | |
5eddb70b | 2460 | u32 reg, temp; |
79e53945 | 2461 | |
c64e311e | 2462 | /* Write the TU size bits so error detection works */ |
5eddb70b CW |
2463 | I915_WRITE(FDI_RX_TUSIZE1(pipe), |
2464 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
c64e311e | 2465 | |
c98e9dcf | 2466 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
2467 | reg = FDI_RX_CTL(pipe); |
2468 | temp = I915_READ(reg); | |
2469 | temp &= ~((0x7 << 19) | (0x7 << 16)); | |
c98e9dcf | 2470 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
5eddb70b CW |
2471 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
2472 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); | |
2473 | ||
2474 | POSTING_READ(reg); | |
c98e9dcf JB |
2475 | udelay(200); |
2476 | ||
2477 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
2478 | temp = I915_READ(reg); |
2479 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
2480 | ||
2481 | POSTING_READ(reg); | |
c98e9dcf JB |
2482 | udelay(200); |
2483 | ||
2484 | /* Enable CPU FDI TX PLL, always on for Ironlake */ | |
5eddb70b CW |
2485 | reg = FDI_TX_CTL(pipe); |
2486 | temp = I915_READ(reg); | |
c98e9dcf | 2487 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { |
5eddb70b CW |
2488 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); |
2489 | ||
2490 | POSTING_READ(reg); | |
c98e9dcf | 2491 | udelay(100); |
6be4a607 | 2492 | } |
0e23b99d JB |
2493 | } |
2494 | ||
0fc932b8 JB |
2495 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
2496 | { | |
2497 | struct drm_device *dev = crtc->dev; | |
2498 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2499 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2500 | int pipe = intel_crtc->pipe; | |
2501 | u32 reg, temp; | |
2502 | ||
2503 | /* disable CPU FDI tx and PCH FDI rx */ | |
2504 | reg = FDI_TX_CTL(pipe); | |
2505 | temp = I915_READ(reg); | |
2506 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
2507 | POSTING_READ(reg); | |
2508 | ||
2509 | reg = FDI_RX_CTL(pipe); | |
2510 | temp = I915_READ(reg); | |
2511 | temp &= ~(0x7 << 16); | |
2512 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2513 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); | |
2514 | ||
2515 | POSTING_READ(reg); | |
2516 | udelay(100); | |
2517 | ||
2518 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
2519 | if (HAS_PCH_IBX(dev)) | |
2520 | I915_WRITE(FDI_RX_CHICKEN(pipe), | |
2521 | I915_READ(FDI_RX_CHICKEN(pipe) & | |
2522 | ~FDI_RX_PHASE_SYNC_POINTER_ENABLE)); | |
2523 | ||
2524 | /* still set train pattern 1 */ | |
2525 | reg = FDI_TX_CTL(pipe); | |
2526 | temp = I915_READ(reg); | |
2527 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2528 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2529 | I915_WRITE(reg, temp); | |
2530 | ||
2531 | reg = FDI_RX_CTL(pipe); | |
2532 | temp = I915_READ(reg); | |
2533 | if (HAS_PCH_CPT(dev)) { | |
2534 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2535 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2536 | } else { | |
2537 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2538 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2539 | } | |
2540 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
2541 | temp &= ~(0x07 << 16); | |
2542 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2543 | I915_WRITE(reg, temp); | |
2544 | ||
2545 | POSTING_READ(reg); | |
2546 | udelay(100); | |
2547 | } | |
2548 | ||
6b383a7f CW |
2549 | /* |
2550 | * When we disable a pipe, we need to clear any pending scanline wait events | |
2551 | * to avoid hanging the ring, which we assume we are waiting on. | |
2552 | */ | |
2553 | static void intel_clear_scanline_wait(struct drm_device *dev) | |
2554 | { | |
2555 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8168bd48 | 2556 | struct intel_ring_buffer *ring; |
6b383a7f CW |
2557 | u32 tmp; |
2558 | ||
2559 | if (IS_GEN2(dev)) | |
2560 | /* Can't break the hang on i8xx */ | |
2561 | return; | |
2562 | ||
1ec14ad3 | 2563 | ring = LP_RING(dev_priv); |
8168bd48 CW |
2564 | tmp = I915_READ_CTL(ring); |
2565 | if (tmp & RING_WAIT) | |
2566 | I915_WRITE_CTL(ring, tmp); | |
6b383a7f CW |
2567 | } |
2568 | ||
e6c3a2a6 CW |
2569 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
2570 | { | |
05394f39 | 2571 | struct drm_i915_gem_object *obj; |
e6c3a2a6 CW |
2572 | struct drm_i915_private *dev_priv; |
2573 | ||
2574 | if (crtc->fb == NULL) | |
2575 | return; | |
2576 | ||
05394f39 | 2577 | obj = to_intel_framebuffer(crtc->fb)->obj; |
e6c3a2a6 CW |
2578 | dev_priv = crtc->dev->dev_private; |
2579 | wait_event(dev_priv->pending_flip_queue, | |
05394f39 | 2580 | atomic_read(&obj->pending_flip) == 0); |
e6c3a2a6 CW |
2581 | } |
2582 | ||
040484af JB |
2583 | static bool intel_crtc_driving_pch(struct drm_crtc *crtc) |
2584 | { | |
2585 | struct drm_device *dev = crtc->dev; | |
2586 | struct drm_mode_config *mode_config = &dev->mode_config; | |
2587 | struct intel_encoder *encoder; | |
2588 | ||
2589 | /* | |
2590 | * If there's a non-PCH eDP on this crtc, it must be DP_A, and that | |
2591 | * must be driven by its own crtc; no sharing is possible. | |
2592 | */ | |
2593 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { | |
2594 | if (encoder->base.crtc != crtc) | |
2595 | continue; | |
2596 | ||
2597 | switch (encoder->type) { | |
2598 | case INTEL_OUTPUT_EDP: | |
2599 | if (!intel_encoder_is_pch_edp(&encoder->base)) | |
2600 | return false; | |
2601 | continue; | |
2602 | } | |
2603 | } | |
2604 | ||
2605 | return true; | |
2606 | } | |
2607 | ||
0e23b99d JB |
2608 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
2609 | { | |
2610 | struct drm_device *dev = crtc->dev; | |
2611 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2612 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2613 | int pipe = intel_crtc->pipe; | |
2614 | int plane = intel_crtc->plane; | |
5eddb70b | 2615 | u32 reg, temp; |
040484af | 2616 | bool is_pch_port; |
0e23b99d | 2617 | |
f7abfe8b CW |
2618 | if (intel_crtc->active) |
2619 | return; | |
2620 | ||
2621 | intel_crtc->active = true; | |
6b383a7f CW |
2622 | intel_update_watermarks(dev); |
2623 | ||
0e23b99d JB |
2624 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
2625 | temp = I915_READ(PCH_LVDS); | |
5eddb70b | 2626 | if ((temp & LVDS_PORT_EN) == 0) |
0e23b99d | 2627 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); |
0e23b99d JB |
2628 | } |
2629 | ||
2630 | ironlake_fdi_enable(crtc); | |
2c07245f | 2631 | |
6be4a607 JB |
2632 | /* Enable panel fitting for LVDS */ |
2633 | if (dev_priv->pch_pf_size && | |
1d850362 | 2634 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) { |
6be4a607 JB |
2635 | /* Force use of hard-coded filter coefficients |
2636 | * as some pre-programmed values are broken, | |
2637 | * e.g. x201. | |
2638 | */ | |
2639 | I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1, | |
2640 | PF_ENABLE | PF_FILTER_MED_3x3); | |
2641 | I915_WRITE(pipe ? PFB_WIN_POS : PFA_WIN_POS, | |
2642 | dev_priv->pch_pf_pos); | |
2643 | I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ, | |
2644 | dev_priv->pch_pf_size); | |
2645 | } | |
2c07245f | 2646 | |
040484af JB |
2647 | is_pch_port = intel_crtc_driving_pch(crtc); |
2648 | ||
2649 | intel_enable_pipe(dev_priv, pipe, is_pch_port); | |
b24e7179 | 2650 | intel_enable_plane(dev_priv, plane, pipe); |
2c07245f | 2651 | |
c98e9dcf JB |
2652 | /* For PCH output, training FDI link */ |
2653 | if (IS_GEN6(dev)) | |
2654 | gen6_fdi_link_train(crtc); | |
2655 | else | |
2656 | ironlake_fdi_link_train(crtc); | |
2c07245f | 2657 | |
92f2584a | 2658 | intel_enable_pch_pll(dev_priv, pipe); |
8db9d77b | 2659 | |
c98e9dcf JB |
2660 | if (HAS_PCH_CPT(dev)) { |
2661 | /* Be sure PCH DPLL SEL is set */ | |
2662 | temp = I915_READ(PCH_DPLL_SEL); | |
5eddb70b | 2663 | if (pipe == 0 && (temp & TRANSA_DPLL_ENABLE) == 0) |
c98e9dcf | 2664 | temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL); |
5eddb70b | 2665 | else if (pipe == 1 && (temp & TRANSB_DPLL_ENABLE) == 0) |
c98e9dcf JB |
2666 | temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
2667 | I915_WRITE(PCH_DPLL_SEL, temp); | |
c98e9dcf | 2668 | } |
5eddb70b | 2669 | |
d9b6cb56 JB |
2670 | /* set transcoder timing, panel must allow it */ |
2671 | assert_panel_unlocked(dev_priv, pipe); | |
5eddb70b CW |
2672 | I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe))); |
2673 | I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe))); | |
2674 | I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe))); | |
8db9d77b | 2675 | |
5eddb70b CW |
2676 | I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe))); |
2677 | I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe))); | |
2678 | I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe))); | |
8db9d77b | 2679 | |
5e84e1a4 ZW |
2680 | intel_fdi_normal_train(crtc); |
2681 | ||
c98e9dcf JB |
2682 | /* For PCH DP, enable TRANS_DP_CTL */ |
2683 | if (HAS_PCH_CPT(dev) && | |
2684 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { | |
5eddb70b CW |
2685 | reg = TRANS_DP_CTL(pipe); |
2686 | temp = I915_READ(reg); | |
2687 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
2688 | TRANS_DP_SYNC_MASK | |
2689 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
2690 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
2691 | TRANS_DP_ENH_FRAMING); | |
220cad3c | 2692 | temp |= TRANS_DP_8BPC; |
c98e9dcf JB |
2693 | |
2694 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 2695 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 2696 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 2697 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
2698 | |
2699 | switch (intel_trans_dp_port_sel(crtc)) { | |
2700 | case PCH_DP_B: | |
5eddb70b | 2701 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
2702 | break; |
2703 | case PCH_DP_C: | |
5eddb70b | 2704 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
2705 | break; |
2706 | case PCH_DP_D: | |
5eddb70b | 2707 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
2708 | break; |
2709 | default: | |
2710 | DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); | |
5eddb70b | 2711 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf | 2712 | break; |
32f9d658 | 2713 | } |
2c07245f | 2714 | |
5eddb70b | 2715 | I915_WRITE(reg, temp); |
6be4a607 | 2716 | } |
b52eb4dc | 2717 | |
040484af | 2718 | intel_enable_transcoder(dev_priv, pipe); |
c98e9dcf | 2719 | |
6be4a607 | 2720 | intel_crtc_load_lut(crtc); |
bed4a673 | 2721 | intel_update_fbc(dev); |
6b383a7f | 2722 | intel_crtc_update_cursor(crtc, true); |
6be4a607 JB |
2723 | } |
2724 | ||
2725 | static void ironlake_crtc_disable(struct drm_crtc *crtc) | |
2726 | { | |
2727 | struct drm_device *dev = crtc->dev; | |
2728 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2729 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2730 | int pipe = intel_crtc->pipe; | |
2731 | int plane = intel_crtc->plane; | |
5eddb70b | 2732 | u32 reg, temp; |
b52eb4dc | 2733 | |
f7abfe8b CW |
2734 | if (!intel_crtc->active) |
2735 | return; | |
2736 | ||
e6c3a2a6 | 2737 | intel_crtc_wait_for_pending_flips(crtc); |
6be4a607 | 2738 | drm_vblank_off(dev, pipe); |
6b383a7f | 2739 | intel_crtc_update_cursor(crtc, false); |
5eddb70b | 2740 | |
b24e7179 | 2741 | intel_disable_plane(dev_priv, plane, pipe); |
913d8d11 | 2742 | |
6be4a607 JB |
2743 | if (dev_priv->cfb_plane == plane && |
2744 | dev_priv->display.disable_fbc) | |
2745 | dev_priv->display.disable_fbc(dev); | |
2c07245f | 2746 | |
b24e7179 | 2747 | intel_disable_pipe(dev_priv, pipe); |
32f9d658 | 2748 | |
6be4a607 JB |
2749 | /* Disable PF */ |
2750 | I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1, 0); | |
2751 | I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ, 0); | |
2c07245f | 2752 | |
0fc932b8 | 2753 | ironlake_fdi_disable(crtc); |
2c07245f | 2754 | |
6be4a607 JB |
2755 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
2756 | temp = I915_READ(PCH_LVDS); | |
5eddb70b CW |
2757 | if (temp & LVDS_PORT_EN) { |
2758 | I915_WRITE(PCH_LVDS, temp & ~LVDS_PORT_EN); | |
2759 | POSTING_READ(PCH_LVDS); | |
2760 | udelay(100); | |
2761 | } | |
6be4a607 | 2762 | } |
249c0e64 | 2763 | |
040484af | 2764 | intel_disable_transcoder(dev_priv, pipe); |
913d8d11 | 2765 | |
6be4a607 JB |
2766 | if (HAS_PCH_CPT(dev)) { |
2767 | /* disable TRANS_DP_CTL */ | |
5eddb70b CW |
2768 | reg = TRANS_DP_CTL(pipe); |
2769 | temp = I915_READ(reg); | |
2770 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); | |
2771 | I915_WRITE(reg, temp); | |
6be4a607 JB |
2772 | |
2773 | /* disable DPLL_SEL */ | |
2774 | temp = I915_READ(PCH_DPLL_SEL); | |
5eddb70b | 2775 | if (pipe == 0) |
6be4a607 JB |
2776 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
2777 | else | |
2778 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); | |
2779 | I915_WRITE(PCH_DPLL_SEL, temp); | |
6be4a607 | 2780 | } |
e3421a18 | 2781 | |
6be4a607 | 2782 | /* disable PCH DPLL */ |
92f2584a | 2783 | intel_disable_pch_pll(dev_priv, pipe); |
8db9d77b | 2784 | |
6be4a607 | 2785 | /* Switch from PCDclk to Rawclk */ |
5eddb70b CW |
2786 | reg = FDI_RX_CTL(pipe); |
2787 | temp = I915_READ(reg); | |
2788 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
8db9d77b | 2789 | |
6be4a607 | 2790 | /* Disable CPU FDI TX PLL */ |
5eddb70b CW |
2791 | reg = FDI_TX_CTL(pipe); |
2792 | temp = I915_READ(reg); | |
2793 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
2794 | ||
2795 | POSTING_READ(reg); | |
6be4a607 | 2796 | udelay(100); |
8db9d77b | 2797 | |
5eddb70b CW |
2798 | reg = FDI_RX_CTL(pipe); |
2799 | temp = I915_READ(reg); | |
2800 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
2c07245f | 2801 | |
6be4a607 | 2802 | /* Wait for the clocks to turn off. */ |
5eddb70b | 2803 | POSTING_READ(reg); |
6be4a607 | 2804 | udelay(100); |
6b383a7f | 2805 | |
f7abfe8b | 2806 | intel_crtc->active = false; |
6b383a7f CW |
2807 | intel_update_watermarks(dev); |
2808 | intel_update_fbc(dev); | |
2809 | intel_clear_scanline_wait(dev); | |
6be4a607 | 2810 | } |
1b3c7a47 | 2811 | |
6be4a607 JB |
2812 | static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) |
2813 | { | |
2814 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2815 | int pipe = intel_crtc->pipe; | |
2816 | int plane = intel_crtc->plane; | |
8db9d77b | 2817 | |
6be4a607 JB |
2818 | /* XXX: When our outputs are all unaware of DPMS modes other than off |
2819 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
2820 | */ | |
2821 | switch (mode) { | |
2822 | case DRM_MODE_DPMS_ON: | |
2823 | case DRM_MODE_DPMS_STANDBY: | |
2824 | case DRM_MODE_DPMS_SUSPEND: | |
2825 | DRM_DEBUG_KMS("crtc %d/%d dpms on\n", pipe, plane); | |
2826 | ironlake_crtc_enable(crtc); | |
2827 | break; | |
1b3c7a47 | 2828 | |
6be4a607 JB |
2829 | case DRM_MODE_DPMS_OFF: |
2830 | DRM_DEBUG_KMS("crtc %d/%d dpms off\n", pipe, plane); | |
2831 | ironlake_crtc_disable(crtc); | |
2c07245f ZW |
2832 | break; |
2833 | } | |
2834 | } | |
2835 | ||
02e792fb DV |
2836 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
2837 | { | |
02e792fb | 2838 | if (!enable && intel_crtc->overlay) { |
23f09ce3 | 2839 | struct drm_device *dev = intel_crtc->base.dev; |
03f77ea5 | 2840 | |
23f09ce3 CW |
2841 | mutex_lock(&dev->struct_mutex); |
2842 | (void) intel_overlay_switch_off(intel_crtc->overlay, false); | |
2843 | mutex_unlock(&dev->struct_mutex); | |
02e792fb | 2844 | } |
02e792fb | 2845 | |
5dcdbcb0 CW |
2846 | /* Let userspace switch the overlay on again. In most cases userspace |
2847 | * has to recompute where to put it anyway. | |
2848 | */ | |
02e792fb DV |
2849 | } |
2850 | ||
0b8765c6 | 2851 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
2852 | { |
2853 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
2854 | struct drm_i915_private *dev_priv = dev->dev_private; |
2855 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2856 | int pipe = intel_crtc->pipe; | |
80824003 | 2857 | int plane = intel_crtc->plane; |
79e53945 | 2858 | |
f7abfe8b CW |
2859 | if (intel_crtc->active) |
2860 | return; | |
2861 | ||
2862 | intel_crtc->active = true; | |
6b383a7f CW |
2863 | intel_update_watermarks(dev); |
2864 | ||
63d7bbe9 | 2865 | intel_enable_pll(dev_priv, pipe); |
040484af | 2866 | intel_enable_pipe(dev_priv, pipe, false); |
b24e7179 | 2867 | intel_enable_plane(dev_priv, plane, pipe); |
79e53945 | 2868 | |
0b8765c6 | 2869 | intel_crtc_load_lut(crtc); |
bed4a673 | 2870 | intel_update_fbc(dev); |
79e53945 | 2871 | |
0b8765c6 JB |
2872 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
2873 | intel_crtc_dpms_overlay(intel_crtc, true); | |
6b383a7f | 2874 | intel_crtc_update_cursor(crtc, true); |
0b8765c6 | 2875 | } |
79e53945 | 2876 | |
0b8765c6 JB |
2877 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
2878 | { | |
2879 | struct drm_device *dev = crtc->dev; | |
2880 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2881 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2882 | int pipe = intel_crtc->pipe; | |
2883 | int plane = intel_crtc->plane; | |
b690e96c | 2884 | |
f7abfe8b CW |
2885 | if (!intel_crtc->active) |
2886 | return; | |
2887 | ||
0b8765c6 | 2888 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
e6c3a2a6 CW |
2889 | intel_crtc_wait_for_pending_flips(crtc); |
2890 | drm_vblank_off(dev, pipe); | |
0b8765c6 | 2891 | intel_crtc_dpms_overlay(intel_crtc, false); |
6b383a7f | 2892 | intel_crtc_update_cursor(crtc, false); |
0b8765c6 JB |
2893 | |
2894 | if (dev_priv->cfb_plane == plane && | |
2895 | dev_priv->display.disable_fbc) | |
2896 | dev_priv->display.disable_fbc(dev); | |
79e53945 | 2897 | |
b24e7179 | 2898 | intel_disable_plane(dev_priv, plane, pipe); |
b24e7179 | 2899 | intel_disable_pipe(dev_priv, pipe); |
63d7bbe9 | 2900 | intel_disable_pll(dev_priv, pipe); |
0b8765c6 | 2901 | |
f7abfe8b | 2902 | intel_crtc->active = false; |
6b383a7f CW |
2903 | intel_update_fbc(dev); |
2904 | intel_update_watermarks(dev); | |
2905 | intel_clear_scanline_wait(dev); | |
0b8765c6 JB |
2906 | } |
2907 | ||
2908 | static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) | |
2909 | { | |
2910 | /* XXX: When our outputs are all unaware of DPMS modes other than off | |
2911 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
2912 | */ | |
2913 | switch (mode) { | |
2914 | case DRM_MODE_DPMS_ON: | |
2915 | case DRM_MODE_DPMS_STANDBY: | |
2916 | case DRM_MODE_DPMS_SUSPEND: | |
2917 | i9xx_crtc_enable(crtc); | |
2918 | break; | |
2919 | case DRM_MODE_DPMS_OFF: | |
2920 | i9xx_crtc_disable(crtc); | |
79e53945 JB |
2921 | break; |
2922 | } | |
2c07245f ZW |
2923 | } |
2924 | ||
2925 | /** | |
2926 | * Sets the power management mode of the pipe and plane. | |
2c07245f ZW |
2927 | */ |
2928 | static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) | |
2929 | { | |
2930 | struct drm_device *dev = crtc->dev; | |
e70236a8 | 2931 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f ZW |
2932 | struct drm_i915_master_private *master_priv; |
2933 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2934 | int pipe = intel_crtc->pipe; | |
2935 | bool enabled; | |
2936 | ||
032d2a0d CW |
2937 | if (intel_crtc->dpms_mode == mode) |
2938 | return; | |
2939 | ||
65655d4a | 2940 | intel_crtc->dpms_mode = mode; |
debcaddc | 2941 | |
e70236a8 | 2942 | dev_priv->display.dpms(crtc, mode); |
79e53945 JB |
2943 | |
2944 | if (!dev->primary->master) | |
2945 | return; | |
2946 | ||
2947 | master_priv = dev->primary->master->driver_priv; | |
2948 | if (!master_priv->sarea_priv) | |
2949 | return; | |
2950 | ||
2951 | enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF; | |
2952 | ||
2953 | switch (pipe) { | |
2954 | case 0: | |
2955 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
2956 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
2957 | break; | |
2958 | case 1: | |
2959 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
2960 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
2961 | break; | |
2962 | default: | |
2963 | DRM_ERROR("Can't update pipe %d in SAREA\n", pipe); | |
2964 | break; | |
2965 | } | |
79e53945 JB |
2966 | } |
2967 | ||
cdd59983 CW |
2968 | static void intel_crtc_disable(struct drm_crtc *crtc) |
2969 | { | |
2970 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
2971 | struct drm_device *dev = crtc->dev; | |
2972 | ||
2973 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); | |
2974 | ||
2975 | if (crtc->fb) { | |
2976 | mutex_lock(&dev->struct_mutex); | |
2977 | i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj); | |
2978 | mutex_unlock(&dev->struct_mutex); | |
2979 | } | |
2980 | } | |
2981 | ||
7e7d76c3 JB |
2982 | /* Prepare for a mode set. |
2983 | * | |
2984 | * Note we could be a lot smarter here. We need to figure out which outputs | |
2985 | * will be enabled, which disabled (in short, how the config will changes) | |
2986 | * and perform the minimum necessary steps to accomplish that, e.g. updating | |
2987 | * watermarks, FBC configuration, making sure PLLs are programmed correctly, | |
2988 | * panel fitting is in the proper state, etc. | |
2989 | */ | |
2990 | static void i9xx_crtc_prepare(struct drm_crtc *crtc) | |
79e53945 | 2991 | { |
7e7d76c3 | 2992 | i9xx_crtc_disable(crtc); |
79e53945 JB |
2993 | } |
2994 | ||
7e7d76c3 | 2995 | static void i9xx_crtc_commit(struct drm_crtc *crtc) |
79e53945 | 2996 | { |
7e7d76c3 | 2997 | i9xx_crtc_enable(crtc); |
7e7d76c3 JB |
2998 | } |
2999 | ||
3000 | static void ironlake_crtc_prepare(struct drm_crtc *crtc) | |
3001 | { | |
7e7d76c3 | 3002 | ironlake_crtc_disable(crtc); |
7e7d76c3 JB |
3003 | } |
3004 | ||
3005 | static void ironlake_crtc_commit(struct drm_crtc *crtc) | |
3006 | { | |
7e7d76c3 | 3007 | ironlake_crtc_enable(crtc); |
79e53945 JB |
3008 | } |
3009 | ||
3010 | void intel_encoder_prepare (struct drm_encoder *encoder) | |
3011 | { | |
3012 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
3013 | /* lvds has its own version of prepare see intel_lvds_prepare */ | |
3014 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF); | |
3015 | } | |
3016 | ||
3017 | void intel_encoder_commit (struct drm_encoder *encoder) | |
3018 | { | |
3019 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
3020 | /* lvds has its own version of commit see intel_lvds_commit */ | |
3021 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
3022 | } | |
3023 | ||
ea5b213a CW |
3024 | void intel_encoder_destroy(struct drm_encoder *encoder) |
3025 | { | |
4ef69c7a | 3026 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 3027 | |
ea5b213a CW |
3028 | drm_encoder_cleanup(encoder); |
3029 | kfree(intel_encoder); | |
3030 | } | |
3031 | ||
79e53945 JB |
3032 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
3033 | struct drm_display_mode *mode, | |
3034 | struct drm_display_mode *adjusted_mode) | |
3035 | { | |
2c07245f | 3036 | struct drm_device *dev = crtc->dev; |
89749350 | 3037 | |
bad720ff | 3038 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f | 3039 | /* FDI link clock is fixed at 2.7G */ |
2377b741 JB |
3040 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
3041 | return false; | |
2c07245f | 3042 | } |
89749350 CW |
3043 | |
3044 | /* XXX some encoders set the crtcinfo, others don't. | |
3045 | * Obviously we need some form of conflict resolution here... | |
3046 | */ | |
3047 | if (adjusted_mode->crtc_htotal == 0) | |
3048 | drm_mode_set_crtcinfo(adjusted_mode, 0); | |
3049 | ||
79e53945 JB |
3050 | return true; |
3051 | } | |
3052 | ||
e70236a8 JB |
3053 | static int i945_get_display_clock_speed(struct drm_device *dev) |
3054 | { | |
3055 | return 400000; | |
3056 | } | |
79e53945 | 3057 | |
e70236a8 | 3058 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 3059 | { |
e70236a8 JB |
3060 | return 333000; |
3061 | } | |
79e53945 | 3062 | |
e70236a8 JB |
3063 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
3064 | { | |
3065 | return 200000; | |
3066 | } | |
79e53945 | 3067 | |
e70236a8 JB |
3068 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
3069 | { | |
3070 | u16 gcfgc = 0; | |
79e53945 | 3071 | |
e70236a8 JB |
3072 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
3073 | ||
3074 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
3075 | return 133000; | |
3076 | else { | |
3077 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
3078 | case GC_DISPLAY_CLOCK_333_MHZ: | |
3079 | return 333000; | |
3080 | default: | |
3081 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
3082 | return 190000; | |
79e53945 | 3083 | } |
e70236a8 JB |
3084 | } |
3085 | } | |
3086 | ||
3087 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
3088 | { | |
3089 | return 266000; | |
3090 | } | |
3091 | ||
3092 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
3093 | { | |
3094 | u16 hpllcc = 0; | |
3095 | /* Assume that the hardware is in the high speed state. This | |
3096 | * should be the default. | |
3097 | */ | |
3098 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
3099 | case GC_CLOCK_133_200: | |
3100 | case GC_CLOCK_100_200: | |
3101 | return 200000; | |
3102 | case GC_CLOCK_166_250: | |
3103 | return 250000; | |
3104 | case GC_CLOCK_100_133: | |
79e53945 | 3105 | return 133000; |
e70236a8 | 3106 | } |
79e53945 | 3107 | |
e70236a8 JB |
3108 | /* Shouldn't happen */ |
3109 | return 0; | |
3110 | } | |
79e53945 | 3111 | |
e70236a8 JB |
3112 | static int i830_get_display_clock_speed(struct drm_device *dev) |
3113 | { | |
3114 | return 133000; | |
79e53945 JB |
3115 | } |
3116 | ||
2c07245f ZW |
3117 | struct fdi_m_n { |
3118 | u32 tu; | |
3119 | u32 gmch_m; | |
3120 | u32 gmch_n; | |
3121 | u32 link_m; | |
3122 | u32 link_n; | |
3123 | }; | |
3124 | ||
3125 | static void | |
3126 | fdi_reduce_ratio(u32 *num, u32 *den) | |
3127 | { | |
3128 | while (*num > 0xffffff || *den > 0xffffff) { | |
3129 | *num >>= 1; | |
3130 | *den >>= 1; | |
3131 | } | |
3132 | } | |
3133 | ||
2c07245f | 3134 | static void |
f2b115e6 AJ |
3135 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
3136 | int link_clock, struct fdi_m_n *m_n) | |
2c07245f | 3137 | { |
2c07245f ZW |
3138 | m_n->tu = 64; /* default size */ |
3139 | ||
22ed1113 CW |
3140 | /* BUG_ON(pixel_clock > INT_MAX / 36); */ |
3141 | m_n->gmch_m = bits_per_pixel * pixel_clock; | |
3142 | m_n->gmch_n = link_clock * nlanes * 8; | |
2c07245f ZW |
3143 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); |
3144 | ||
22ed1113 CW |
3145 | m_n->link_m = pixel_clock; |
3146 | m_n->link_n = link_clock; | |
2c07245f ZW |
3147 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); |
3148 | } | |
3149 | ||
3150 | ||
7662c8bd SL |
3151 | struct intel_watermark_params { |
3152 | unsigned long fifo_size; | |
3153 | unsigned long max_wm; | |
3154 | unsigned long default_wm; | |
3155 | unsigned long guard_size; | |
3156 | unsigned long cacheline_size; | |
3157 | }; | |
3158 | ||
f2b115e6 AJ |
3159 | /* Pineview has different values for various configs */ |
3160 | static struct intel_watermark_params pineview_display_wm = { | |
3161 | PINEVIEW_DISPLAY_FIFO, | |
3162 | PINEVIEW_MAX_WM, | |
3163 | PINEVIEW_DFT_WM, | |
3164 | PINEVIEW_GUARD_WM, | |
3165 | PINEVIEW_FIFO_LINE_SIZE | |
7662c8bd | 3166 | }; |
f2b115e6 AJ |
3167 | static struct intel_watermark_params pineview_display_hplloff_wm = { |
3168 | PINEVIEW_DISPLAY_FIFO, | |
3169 | PINEVIEW_MAX_WM, | |
3170 | PINEVIEW_DFT_HPLLOFF_WM, | |
3171 | PINEVIEW_GUARD_WM, | |
3172 | PINEVIEW_FIFO_LINE_SIZE | |
7662c8bd | 3173 | }; |
f2b115e6 AJ |
3174 | static struct intel_watermark_params pineview_cursor_wm = { |
3175 | PINEVIEW_CURSOR_FIFO, | |
3176 | PINEVIEW_CURSOR_MAX_WM, | |
3177 | PINEVIEW_CURSOR_DFT_WM, | |
3178 | PINEVIEW_CURSOR_GUARD_WM, | |
3179 | PINEVIEW_FIFO_LINE_SIZE, | |
7662c8bd | 3180 | }; |
f2b115e6 AJ |
3181 | static struct intel_watermark_params pineview_cursor_hplloff_wm = { |
3182 | PINEVIEW_CURSOR_FIFO, | |
3183 | PINEVIEW_CURSOR_MAX_WM, | |
3184 | PINEVIEW_CURSOR_DFT_WM, | |
3185 | PINEVIEW_CURSOR_GUARD_WM, | |
3186 | PINEVIEW_FIFO_LINE_SIZE | |
7662c8bd | 3187 | }; |
0e442c60 JB |
3188 | static struct intel_watermark_params g4x_wm_info = { |
3189 | G4X_FIFO_SIZE, | |
3190 | G4X_MAX_WM, | |
3191 | G4X_MAX_WM, | |
3192 | 2, | |
3193 | G4X_FIFO_LINE_SIZE, | |
3194 | }; | |
4fe5e611 ZY |
3195 | static struct intel_watermark_params g4x_cursor_wm_info = { |
3196 | I965_CURSOR_FIFO, | |
3197 | I965_CURSOR_MAX_WM, | |
3198 | I965_CURSOR_DFT_WM, | |
3199 | 2, | |
3200 | G4X_FIFO_LINE_SIZE, | |
3201 | }; | |
3202 | static struct intel_watermark_params i965_cursor_wm_info = { | |
3203 | I965_CURSOR_FIFO, | |
3204 | I965_CURSOR_MAX_WM, | |
3205 | I965_CURSOR_DFT_WM, | |
3206 | 2, | |
3207 | I915_FIFO_LINE_SIZE, | |
3208 | }; | |
7662c8bd | 3209 | static struct intel_watermark_params i945_wm_info = { |
dff33cfc | 3210 | I945_FIFO_SIZE, |
7662c8bd SL |
3211 | I915_MAX_WM, |
3212 | 1, | |
dff33cfc JB |
3213 | 2, |
3214 | I915_FIFO_LINE_SIZE | |
7662c8bd SL |
3215 | }; |
3216 | static struct intel_watermark_params i915_wm_info = { | |
dff33cfc | 3217 | I915_FIFO_SIZE, |
7662c8bd SL |
3218 | I915_MAX_WM, |
3219 | 1, | |
dff33cfc | 3220 | 2, |
7662c8bd SL |
3221 | I915_FIFO_LINE_SIZE |
3222 | }; | |
3223 | static struct intel_watermark_params i855_wm_info = { | |
3224 | I855GM_FIFO_SIZE, | |
3225 | I915_MAX_WM, | |
3226 | 1, | |
dff33cfc | 3227 | 2, |
7662c8bd SL |
3228 | I830_FIFO_LINE_SIZE |
3229 | }; | |
3230 | static struct intel_watermark_params i830_wm_info = { | |
3231 | I830_FIFO_SIZE, | |
3232 | I915_MAX_WM, | |
3233 | 1, | |
dff33cfc | 3234 | 2, |
7662c8bd SL |
3235 | I830_FIFO_LINE_SIZE |
3236 | }; | |
3237 | ||
7f8a8569 ZW |
3238 | static struct intel_watermark_params ironlake_display_wm_info = { |
3239 | ILK_DISPLAY_FIFO, | |
3240 | ILK_DISPLAY_MAXWM, | |
3241 | ILK_DISPLAY_DFTWM, | |
3242 | 2, | |
3243 | ILK_FIFO_LINE_SIZE | |
3244 | }; | |
3245 | ||
c936f44d ZY |
3246 | static struct intel_watermark_params ironlake_cursor_wm_info = { |
3247 | ILK_CURSOR_FIFO, | |
3248 | ILK_CURSOR_MAXWM, | |
3249 | ILK_CURSOR_DFTWM, | |
3250 | 2, | |
3251 | ILK_FIFO_LINE_SIZE | |
3252 | }; | |
3253 | ||
7f8a8569 ZW |
3254 | static struct intel_watermark_params ironlake_display_srwm_info = { |
3255 | ILK_DISPLAY_SR_FIFO, | |
3256 | ILK_DISPLAY_MAX_SRWM, | |
3257 | ILK_DISPLAY_DFT_SRWM, | |
3258 | 2, | |
3259 | ILK_FIFO_LINE_SIZE | |
3260 | }; | |
3261 | ||
3262 | static struct intel_watermark_params ironlake_cursor_srwm_info = { | |
3263 | ILK_CURSOR_SR_FIFO, | |
3264 | ILK_CURSOR_MAX_SRWM, | |
3265 | ILK_CURSOR_DFT_SRWM, | |
3266 | 2, | |
3267 | ILK_FIFO_LINE_SIZE | |
3268 | }; | |
3269 | ||
1398261a YL |
3270 | static struct intel_watermark_params sandybridge_display_wm_info = { |
3271 | SNB_DISPLAY_FIFO, | |
3272 | SNB_DISPLAY_MAXWM, | |
3273 | SNB_DISPLAY_DFTWM, | |
3274 | 2, | |
3275 | SNB_FIFO_LINE_SIZE | |
3276 | }; | |
3277 | ||
3278 | static struct intel_watermark_params sandybridge_cursor_wm_info = { | |
3279 | SNB_CURSOR_FIFO, | |
3280 | SNB_CURSOR_MAXWM, | |
3281 | SNB_CURSOR_DFTWM, | |
3282 | 2, | |
3283 | SNB_FIFO_LINE_SIZE | |
3284 | }; | |
3285 | ||
3286 | static struct intel_watermark_params sandybridge_display_srwm_info = { | |
3287 | SNB_DISPLAY_SR_FIFO, | |
3288 | SNB_DISPLAY_MAX_SRWM, | |
3289 | SNB_DISPLAY_DFT_SRWM, | |
3290 | 2, | |
3291 | SNB_FIFO_LINE_SIZE | |
3292 | }; | |
3293 | ||
3294 | static struct intel_watermark_params sandybridge_cursor_srwm_info = { | |
3295 | SNB_CURSOR_SR_FIFO, | |
3296 | SNB_CURSOR_MAX_SRWM, | |
3297 | SNB_CURSOR_DFT_SRWM, | |
3298 | 2, | |
3299 | SNB_FIFO_LINE_SIZE | |
3300 | }; | |
3301 | ||
3302 | ||
dff33cfc JB |
3303 | /** |
3304 | * intel_calculate_wm - calculate watermark level | |
3305 | * @clock_in_khz: pixel clock | |
3306 | * @wm: chip FIFO params | |
3307 | * @pixel_size: display pixel size | |
3308 | * @latency_ns: memory latency for the platform | |
3309 | * | |
3310 | * Calculate the watermark level (the level at which the display plane will | |
3311 | * start fetching from memory again). Each chip has a different display | |
3312 | * FIFO size and allocation, so the caller needs to figure that out and pass | |
3313 | * in the correct intel_watermark_params structure. | |
3314 | * | |
3315 | * As the pixel clock runs, the FIFO will be drained at a rate that depends | |
3316 | * on the pixel size. When it reaches the watermark level, it'll start | |
3317 | * fetching FIFO line sized based chunks from memory until the FIFO fills | |
3318 | * past the watermark point. If the FIFO drains completely, a FIFO underrun | |
3319 | * will occur, and a display engine hang could result. | |
3320 | */ | |
7662c8bd SL |
3321 | static unsigned long intel_calculate_wm(unsigned long clock_in_khz, |
3322 | struct intel_watermark_params *wm, | |
3323 | int pixel_size, | |
3324 | unsigned long latency_ns) | |
3325 | { | |
390c4dd4 | 3326 | long entries_required, wm_size; |
dff33cfc | 3327 | |
d660467c JB |
3328 | /* |
3329 | * Note: we need to make sure we don't overflow for various clock & | |
3330 | * latency values. | |
3331 | * clocks go from a few thousand to several hundred thousand. | |
3332 | * latency is usually a few thousand | |
3333 | */ | |
3334 | entries_required = ((clock_in_khz / 1000) * pixel_size * latency_ns) / | |
3335 | 1000; | |
8de9b311 | 3336 | entries_required = DIV_ROUND_UP(entries_required, wm->cacheline_size); |
7662c8bd | 3337 | |
28c97730 | 3338 | DRM_DEBUG_KMS("FIFO entries required for mode: %d\n", entries_required); |
dff33cfc JB |
3339 | |
3340 | wm_size = wm->fifo_size - (entries_required + wm->guard_size); | |
3341 | ||
28c97730 | 3342 | DRM_DEBUG_KMS("FIFO watermark level: %d\n", wm_size); |
7662c8bd | 3343 | |
390c4dd4 JB |
3344 | /* Don't promote wm_size to unsigned... */ |
3345 | if (wm_size > (long)wm->max_wm) | |
7662c8bd | 3346 | wm_size = wm->max_wm; |
c3add4b6 | 3347 | if (wm_size <= 0) |
7662c8bd SL |
3348 | wm_size = wm->default_wm; |
3349 | return wm_size; | |
3350 | } | |
3351 | ||
3352 | struct cxsr_latency { | |
3353 | int is_desktop; | |
95534263 | 3354 | int is_ddr3; |
7662c8bd SL |
3355 | unsigned long fsb_freq; |
3356 | unsigned long mem_freq; | |
3357 | unsigned long display_sr; | |
3358 | unsigned long display_hpll_disable; | |
3359 | unsigned long cursor_sr; | |
3360 | unsigned long cursor_hpll_disable; | |
3361 | }; | |
3362 | ||
403c89ff | 3363 | static const struct cxsr_latency cxsr_latency_table[] = { |
95534263 LP |
3364 | {1, 0, 800, 400, 3382, 33382, 3983, 33983}, /* DDR2-400 SC */ |
3365 | {1, 0, 800, 667, 3354, 33354, 3807, 33807}, /* DDR2-667 SC */ | |
3366 | {1, 0, 800, 800, 3347, 33347, 3763, 33763}, /* DDR2-800 SC */ | |
3367 | {1, 1, 800, 667, 6420, 36420, 6873, 36873}, /* DDR3-667 SC */ | |
3368 | {1, 1, 800, 800, 5902, 35902, 6318, 36318}, /* DDR3-800 SC */ | |
3369 | ||
3370 | {1, 0, 667, 400, 3400, 33400, 4021, 34021}, /* DDR2-400 SC */ | |
3371 | {1, 0, 667, 667, 3372, 33372, 3845, 33845}, /* DDR2-667 SC */ | |
3372 | {1, 0, 667, 800, 3386, 33386, 3822, 33822}, /* DDR2-800 SC */ | |
3373 | {1, 1, 667, 667, 6438, 36438, 6911, 36911}, /* DDR3-667 SC */ | |
3374 | {1, 1, 667, 800, 5941, 35941, 6377, 36377}, /* DDR3-800 SC */ | |
3375 | ||
3376 | {1, 0, 400, 400, 3472, 33472, 4173, 34173}, /* DDR2-400 SC */ | |
3377 | {1, 0, 400, 667, 3443, 33443, 3996, 33996}, /* DDR2-667 SC */ | |
3378 | {1, 0, 400, 800, 3430, 33430, 3946, 33946}, /* DDR2-800 SC */ | |
3379 | {1, 1, 400, 667, 6509, 36509, 7062, 37062}, /* DDR3-667 SC */ | |
3380 | {1, 1, 400, 800, 5985, 35985, 6501, 36501}, /* DDR3-800 SC */ | |
3381 | ||
3382 | {0, 0, 800, 400, 3438, 33438, 4065, 34065}, /* DDR2-400 SC */ | |
3383 | {0, 0, 800, 667, 3410, 33410, 3889, 33889}, /* DDR2-667 SC */ | |
3384 | {0, 0, 800, 800, 3403, 33403, 3845, 33845}, /* DDR2-800 SC */ | |
3385 | {0, 1, 800, 667, 6476, 36476, 6955, 36955}, /* DDR3-667 SC */ | |
3386 | {0, 1, 800, 800, 5958, 35958, 6400, 36400}, /* DDR3-800 SC */ | |
3387 | ||
3388 | {0, 0, 667, 400, 3456, 33456, 4103, 34106}, /* DDR2-400 SC */ | |
3389 | {0, 0, 667, 667, 3428, 33428, 3927, 33927}, /* DDR2-667 SC */ | |
3390 | {0, 0, 667, 800, 3443, 33443, 3905, 33905}, /* DDR2-800 SC */ | |
3391 | {0, 1, 667, 667, 6494, 36494, 6993, 36993}, /* DDR3-667 SC */ | |
3392 | {0, 1, 667, 800, 5998, 35998, 6460, 36460}, /* DDR3-800 SC */ | |
3393 | ||
3394 | {0, 0, 400, 400, 3528, 33528, 4255, 34255}, /* DDR2-400 SC */ | |
3395 | {0, 0, 400, 667, 3500, 33500, 4079, 34079}, /* DDR2-667 SC */ | |
3396 | {0, 0, 400, 800, 3487, 33487, 4029, 34029}, /* DDR2-800 SC */ | |
3397 | {0, 1, 400, 667, 6566, 36566, 7145, 37145}, /* DDR3-667 SC */ | |
3398 | {0, 1, 400, 800, 6042, 36042, 6584, 36584}, /* DDR3-800 SC */ | |
7662c8bd SL |
3399 | }; |
3400 | ||
403c89ff CW |
3401 | static const struct cxsr_latency *intel_get_cxsr_latency(int is_desktop, |
3402 | int is_ddr3, | |
3403 | int fsb, | |
3404 | int mem) | |
7662c8bd | 3405 | { |
403c89ff | 3406 | const struct cxsr_latency *latency; |
7662c8bd | 3407 | int i; |
7662c8bd SL |
3408 | |
3409 | if (fsb == 0 || mem == 0) | |
3410 | return NULL; | |
3411 | ||
3412 | for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) { | |
3413 | latency = &cxsr_latency_table[i]; | |
3414 | if (is_desktop == latency->is_desktop && | |
95534263 | 3415 | is_ddr3 == latency->is_ddr3 && |
decbbcda JSR |
3416 | fsb == latency->fsb_freq && mem == latency->mem_freq) |
3417 | return latency; | |
7662c8bd | 3418 | } |
decbbcda | 3419 | |
28c97730 | 3420 | DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); |
decbbcda JSR |
3421 | |
3422 | return NULL; | |
7662c8bd SL |
3423 | } |
3424 | ||
f2b115e6 | 3425 | static void pineview_disable_cxsr(struct drm_device *dev) |
7662c8bd SL |
3426 | { |
3427 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7662c8bd SL |
3428 | |
3429 | /* deactivate cxsr */ | |
3e33d94d | 3430 | I915_WRITE(DSPFW3, I915_READ(DSPFW3) & ~PINEVIEW_SELF_REFRESH_EN); |
7662c8bd SL |
3431 | } |
3432 | ||
bcc24fb4 JB |
3433 | /* |
3434 | * Latency for FIFO fetches is dependent on several factors: | |
3435 | * - memory configuration (speed, channels) | |
3436 | * - chipset | |
3437 | * - current MCH state | |
3438 | * It can be fairly high in some situations, so here we assume a fairly | |
3439 | * pessimal value. It's a tradeoff between extra memory fetches (if we | |
3440 | * set this value too high, the FIFO will fetch frequently to stay full) | |
3441 | * and power consumption (set it too low to save power and we might see | |
3442 | * FIFO underruns and display "flicker"). | |
3443 | * | |
3444 | * A value of 5us seems to be a good balance; safe for very low end | |
3445 | * platforms but not overly aggressive on lower latency configs. | |
3446 | */ | |
69e302a9 | 3447 | static const int latency_ns = 5000; |
7662c8bd | 3448 | |
e70236a8 | 3449 | static int i9xx_get_fifo_size(struct drm_device *dev, int plane) |
dff33cfc JB |
3450 | { |
3451 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3452 | uint32_t dsparb = I915_READ(DSPARB); | |
3453 | int size; | |
3454 | ||
8de9b311 CW |
3455 | size = dsparb & 0x7f; |
3456 | if (plane) | |
3457 | size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) - size; | |
dff33cfc | 3458 | |
28c97730 | 3459 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
5eddb70b | 3460 | plane ? "B" : "A", size); |
dff33cfc JB |
3461 | |
3462 | return size; | |
3463 | } | |
7662c8bd | 3464 | |
e70236a8 JB |
3465 | static int i85x_get_fifo_size(struct drm_device *dev, int plane) |
3466 | { | |
3467 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3468 | uint32_t dsparb = I915_READ(DSPARB); | |
3469 | int size; | |
3470 | ||
8de9b311 CW |
3471 | size = dsparb & 0x1ff; |
3472 | if (plane) | |
3473 | size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) - size; | |
e70236a8 | 3474 | size >>= 1; /* Convert to cachelines */ |
dff33cfc | 3475 | |
28c97730 | 3476 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
5eddb70b | 3477 | plane ? "B" : "A", size); |
dff33cfc JB |
3478 | |
3479 | return size; | |
3480 | } | |
7662c8bd | 3481 | |
e70236a8 JB |
3482 | static int i845_get_fifo_size(struct drm_device *dev, int plane) |
3483 | { | |
3484 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3485 | uint32_t dsparb = I915_READ(DSPARB); | |
3486 | int size; | |
3487 | ||
3488 | size = dsparb & 0x7f; | |
3489 | size >>= 2; /* Convert to cachelines */ | |
3490 | ||
28c97730 | 3491 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
5eddb70b CW |
3492 | plane ? "B" : "A", |
3493 | size); | |
e70236a8 JB |
3494 | |
3495 | return size; | |
3496 | } | |
3497 | ||
3498 | static int i830_get_fifo_size(struct drm_device *dev, int plane) | |
3499 | { | |
3500 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3501 | uint32_t dsparb = I915_READ(DSPARB); | |
3502 | int size; | |
3503 | ||
3504 | size = dsparb & 0x7f; | |
3505 | size >>= 1; /* Convert to cachelines */ | |
3506 | ||
28c97730 | 3507 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
5eddb70b | 3508 | plane ? "B" : "A", size); |
e70236a8 JB |
3509 | |
3510 | return size; | |
3511 | } | |
3512 | ||
d4294342 | 3513 | static void pineview_update_wm(struct drm_device *dev, int planea_clock, |
5eddb70b CW |
3514 | int planeb_clock, int sr_hdisplay, int unused, |
3515 | int pixel_size) | |
d4294342 ZY |
3516 | { |
3517 | struct drm_i915_private *dev_priv = dev->dev_private; | |
403c89ff | 3518 | const struct cxsr_latency *latency; |
d4294342 ZY |
3519 | u32 reg; |
3520 | unsigned long wm; | |
d4294342 ZY |
3521 | int sr_clock; |
3522 | ||
403c89ff | 3523 | latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->is_ddr3, |
95534263 | 3524 | dev_priv->fsb_freq, dev_priv->mem_freq); |
d4294342 ZY |
3525 | if (!latency) { |
3526 | DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); | |
3527 | pineview_disable_cxsr(dev); | |
3528 | return; | |
3529 | } | |
3530 | ||
3531 | if (!planea_clock || !planeb_clock) { | |
3532 | sr_clock = planea_clock ? planea_clock : planeb_clock; | |
3533 | ||
3534 | /* Display SR */ | |
3535 | wm = intel_calculate_wm(sr_clock, &pineview_display_wm, | |
3536 | pixel_size, latency->display_sr); | |
3537 | reg = I915_READ(DSPFW1); | |
3538 | reg &= ~DSPFW_SR_MASK; | |
3539 | reg |= wm << DSPFW_SR_SHIFT; | |
3540 | I915_WRITE(DSPFW1, reg); | |
3541 | DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg); | |
3542 | ||
3543 | /* cursor SR */ | |
3544 | wm = intel_calculate_wm(sr_clock, &pineview_cursor_wm, | |
3545 | pixel_size, latency->cursor_sr); | |
3546 | reg = I915_READ(DSPFW3); | |
3547 | reg &= ~DSPFW_CURSOR_SR_MASK; | |
3548 | reg |= (wm & 0x3f) << DSPFW_CURSOR_SR_SHIFT; | |
3549 | I915_WRITE(DSPFW3, reg); | |
3550 | ||
3551 | /* Display HPLL off SR */ | |
3552 | wm = intel_calculate_wm(sr_clock, &pineview_display_hplloff_wm, | |
3553 | pixel_size, latency->display_hpll_disable); | |
3554 | reg = I915_READ(DSPFW3); | |
3555 | reg &= ~DSPFW_HPLL_SR_MASK; | |
3556 | reg |= wm & DSPFW_HPLL_SR_MASK; | |
3557 | I915_WRITE(DSPFW3, reg); | |
3558 | ||
3559 | /* cursor HPLL off SR */ | |
3560 | wm = intel_calculate_wm(sr_clock, &pineview_cursor_hplloff_wm, | |
3561 | pixel_size, latency->cursor_hpll_disable); | |
3562 | reg = I915_READ(DSPFW3); | |
3563 | reg &= ~DSPFW_HPLL_CURSOR_MASK; | |
3564 | reg |= (wm & 0x3f) << DSPFW_HPLL_CURSOR_SHIFT; | |
3565 | I915_WRITE(DSPFW3, reg); | |
3566 | DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg); | |
3567 | ||
3568 | /* activate cxsr */ | |
3e33d94d CW |
3569 | I915_WRITE(DSPFW3, |
3570 | I915_READ(DSPFW3) | PINEVIEW_SELF_REFRESH_EN); | |
d4294342 ZY |
3571 | DRM_DEBUG_KMS("Self-refresh is enabled\n"); |
3572 | } else { | |
3573 | pineview_disable_cxsr(dev); | |
3574 | DRM_DEBUG_KMS("Self-refresh is disabled\n"); | |
3575 | } | |
3576 | } | |
3577 | ||
0e442c60 | 3578 | static void g4x_update_wm(struct drm_device *dev, int planea_clock, |
fa143215 ZY |
3579 | int planeb_clock, int sr_hdisplay, int sr_htotal, |
3580 | int pixel_size) | |
652c393a JB |
3581 | { |
3582 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0e442c60 JB |
3583 | int total_size, cacheline_size; |
3584 | int planea_wm, planeb_wm, cursora_wm, cursorb_wm, cursor_sr; | |
3585 | struct intel_watermark_params planea_params, planeb_params; | |
3586 | unsigned long line_time_us; | |
3587 | int sr_clock, sr_entries = 0, entries_required; | |
652c393a | 3588 | |
0e442c60 JB |
3589 | /* Create copies of the base settings for each pipe */ |
3590 | planea_params = planeb_params = g4x_wm_info; | |
3591 | ||
3592 | /* Grab a couple of global values before we overwrite them */ | |
3593 | total_size = planea_params.fifo_size; | |
3594 | cacheline_size = planea_params.cacheline_size; | |
3595 | ||
3596 | /* | |
3597 | * Note: we need to make sure we don't overflow for various clock & | |
3598 | * latency values. | |
3599 | * clocks go from a few thousand to several hundred thousand. | |
3600 | * latency is usually a few thousand | |
3601 | */ | |
3602 | entries_required = ((planea_clock / 1000) * pixel_size * latency_ns) / | |
3603 | 1000; | |
8de9b311 | 3604 | entries_required = DIV_ROUND_UP(entries_required, G4X_FIFO_LINE_SIZE); |
0e442c60 JB |
3605 | planea_wm = entries_required + planea_params.guard_size; |
3606 | ||
3607 | entries_required = ((planeb_clock / 1000) * pixel_size * latency_ns) / | |
3608 | 1000; | |
8de9b311 | 3609 | entries_required = DIV_ROUND_UP(entries_required, G4X_FIFO_LINE_SIZE); |
0e442c60 JB |
3610 | planeb_wm = entries_required + planeb_params.guard_size; |
3611 | ||
3612 | cursora_wm = cursorb_wm = 16; | |
3613 | cursor_sr = 32; | |
3614 | ||
3615 | DRM_DEBUG("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm); | |
3616 | ||
3617 | /* Calc sr entries for one plane configs */ | |
3618 | if (sr_hdisplay && (!planea_clock || !planeb_clock)) { | |
3619 | /* self-refresh has much higher latency */ | |
69e302a9 | 3620 | static const int sr_latency_ns = 12000; |
0e442c60 JB |
3621 | |
3622 | sr_clock = planea_clock ? planea_clock : planeb_clock; | |
fa143215 | 3623 | line_time_us = ((sr_htotal * 1000) / sr_clock); |
0e442c60 JB |
3624 | |
3625 | /* Use ns/us then divide to preserve precision */ | |
fa143215 | 3626 | sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
5eddb70b | 3627 | pixel_size * sr_hdisplay; |
8de9b311 | 3628 | sr_entries = DIV_ROUND_UP(sr_entries, cacheline_size); |
4fe5e611 ZY |
3629 | |
3630 | entries_required = (((sr_latency_ns / line_time_us) + | |
3631 | 1000) / 1000) * pixel_size * 64; | |
8de9b311 | 3632 | entries_required = DIV_ROUND_UP(entries_required, |
5eddb70b | 3633 | g4x_cursor_wm_info.cacheline_size); |
4fe5e611 ZY |
3634 | cursor_sr = entries_required + g4x_cursor_wm_info.guard_size; |
3635 | ||
3636 | if (cursor_sr > g4x_cursor_wm_info.max_wm) | |
3637 | cursor_sr = g4x_cursor_wm_info.max_wm; | |
3638 | DRM_DEBUG_KMS("self-refresh watermark: display plane %d " | |
3639 | "cursor %d\n", sr_entries, cursor_sr); | |
3640 | ||
0e442c60 | 3641 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); |
33c5fd12 DJ |
3642 | } else { |
3643 | /* Turn off self refresh if both pipes are enabled */ | |
3644 | I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF) | |
5eddb70b | 3645 | & ~FW_BLC_SELF_EN); |
0e442c60 JB |
3646 | } |
3647 | ||
3648 | DRM_DEBUG("Setting FIFO watermarks - A: %d, B: %d, SR %d\n", | |
3649 | planea_wm, planeb_wm, sr_entries); | |
3650 | ||
3651 | planea_wm &= 0x3f; | |
3652 | planeb_wm &= 0x3f; | |
3653 | ||
3654 | I915_WRITE(DSPFW1, (sr_entries << DSPFW_SR_SHIFT) | | |
3655 | (cursorb_wm << DSPFW_CURSORB_SHIFT) | | |
3656 | (planeb_wm << DSPFW_PLANEB_SHIFT) | planea_wm); | |
3657 | I915_WRITE(DSPFW2, (I915_READ(DSPFW2) & DSPFW_CURSORA_MASK) | | |
3658 | (cursora_wm << DSPFW_CURSORA_SHIFT)); | |
3659 | /* HPLL off in SR has some issues on G4x... disable it */ | |
3660 | I915_WRITE(DSPFW3, (I915_READ(DSPFW3) & ~DSPFW_HPLL_SR_EN) | | |
3661 | (cursor_sr << DSPFW_CURSOR_SR_SHIFT)); | |
652c393a JB |
3662 | } |
3663 | ||
1dc7546d | 3664 | static void i965_update_wm(struct drm_device *dev, int planea_clock, |
fa143215 ZY |
3665 | int planeb_clock, int sr_hdisplay, int sr_htotal, |
3666 | int pixel_size) | |
7662c8bd SL |
3667 | { |
3668 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1dc7546d JB |
3669 | unsigned long line_time_us; |
3670 | int sr_clock, sr_entries, srwm = 1; | |
4fe5e611 | 3671 | int cursor_sr = 16; |
1dc7546d JB |
3672 | |
3673 | /* Calc sr entries for one plane configs */ | |
3674 | if (sr_hdisplay && (!planea_clock || !planeb_clock)) { | |
3675 | /* self-refresh has much higher latency */ | |
69e302a9 | 3676 | static const int sr_latency_ns = 12000; |
1dc7546d JB |
3677 | |
3678 | sr_clock = planea_clock ? planea_clock : planeb_clock; | |
fa143215 | 3679 | line_time_us = ((sr_htotal * 1000) / sr_clock); |
1dc7546d JB |
3680 | |
3681 | /* Use ns/us then divide to preserve precision */ | |
fa143215 | 3682 | sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
5eddb70b | 3683 | pixel_size * sr_hdisplay; |
8de9b311 | 3684 | sr_entries = DIV_ROUND_UP(sr_entries, I915_FIFO_LINE_SIZE); |
1dc7546d | 3685 | DRM_DEBUG("self-refresh entries: %d\n", sr_entries); |
1b07e04e | 3686 | srwm = I965_FIFO_SIZE - sr_entries; |
1dc7546d JB |
3687 | if (srwm < 0) |
3688 | srwm = 1; | |
1b07e04e | 3689 | srwm &= 0x1ff; |
4fe5e611 ZY |
3690 | |
3691 | sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * | |
5eddb70b | 3692 | pixel_size * 64; |
8de9b311 CW |
3693 | sr_entries = DIV_ROUND_UP(sr_entries, |
3694 | i965_cursor_wm_info.cacheline_size); | |
4fe5e611 | 3695 | cursor_sr = i965_cursor_wm_info.fifo_size - |
5eddb70b | 3696 | (sr_entries + i965_cursor_wm_info.guard_size); |
4fe5e611 ZY |
3697 | |
3698 | if (cursor_sr > i965_cursor_wm_info.max_wm) | |
3699 | cursor_sr = i965_cursor_wm_info.max_wm; | |
3700 | ||
3701 | DRM_DEBUG_KMS("self-refresh watermark: display plane %d " | |
3702 | "cursor %d\n", srwm, cursor_sr); | |
3703 | ||
a6c45cf0 | 3704 | if (IS_CRESTLINE(dev)) |
adcdbc66 | 3705 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); |
33c5fd12 DJ |
3706 | } else { |
3707 | /* Turn off self refresh if both pipes are enabled */ | |
a6c45cf0 | 3708 | if (IS_CRESTLINE(dev)) |
adcdbc66 JB |
3709 | I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF) |
3710 | & ~FW_BLC_SELF_EN); | |
1dc7546d | 3711 | } |
7662c8bd | 3712 | |
1dc7546d JB |
3713 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR %d\n", |
3714 | srwm); | |
7662c8bd SL |
3715 | |
3716 | /* 965 has limitations... */ | |
1dc7546d JB |
3717 | I915_WRITE(DSPFW1, (srwm << DSPFW_SR_SHIFT) | (8 << 16) | (8 << 8) | |
3718 | (8 << 0)); | |
7662c8bd | 3719 | I915_WRITE(DSPFW2, (8 << 8) | (8 << 0)); |
4fe5e611 ZY |
3720 | /* update cursor SR watermark */ |
3721 | I915_WRITE(DSPFW3, (cursor_sr << DSPFW_CURSOR_SR_SHIFT)); | |
7662c8bd SL |
3722 | } |
3723 | ||
3724 | static void i9xx_update_wm(struct drm_device *dev, int planea_clock, | |
fa143215 ZY |
3725 | int planeb_clock, int sr_hdisplay, int sr_htotal, |
3726 | int pixel_size) | |
7662c8bd SL |
3727 | { |
3728 | struct drm_i915_private *dev_priv = dev->dev_private; | |
dff33cfc JB |
3729 | uint32_t fwater_lo; |
3730 | uint32_t fwater_hi; | |
3731 | int total_size, cacheline_size, cwm, srwm = 1; | |
3732 | int planea_wm, planeb_wm; | |
3733 | struct intel_watermark_params planea_params, planeb_params; | |
7662c8bd SL |
3734 | unsigned long line_time_us; |
3735 | int sr_clock, sr_entries = 0; | |
3736 | ||
dff33cfc | 3737 | /* Create copies of the base settings for each pipe */ |
a6c45cf0 | 3738 | if (IS_CRESTLINE(dev) || IS_I945GM(dev)) |
dff33cfc | 3739 | planea_params = planeb_params = i945_wm_info; |
a6c45cf0 | 3740 | else if (!IS_GEN2(dev)) |
dff33cfc | 3741 | planea_params = planeb_params = i915_wm_info; |
7662c8bd | 3742 | else |
dff33cfc | 3743 | planea_params = planeb_params = i855_wm_info; |
7662c8bd | 3744 | |
dff33cfc JB |
3745 | /* Grab a couple of global values before we overwrite them */ |
3746 | total_size = planea_params.fifo_size; | |
3747 | cacheline_size = planea_params.cacheline_size; | |
7662c8bd | 3748 | |
dff33cfc | 3749 | /* Update per-plane FIFO sizes */ |
e70236a8 JB |
3750 | planea_params.fifo_size = dev_priv->display.get_fifo_size(dev, 0); |
3751 | planeb_params.fifo_size = dev_priv->display.get_fifo_size(dev, 1); | |
7662c8bd | 3752 | |
dff33cfc JB |
3753 | planea_wm = intel_calculate_wm(planea_clock, &planea_params, |
3754 | pixel_size, latency_ns); | |
3755 | planeb_wm = intel_calculate_wm(planeb_clock, &planeb_params, | |
3756 | pixel_size, latency_ns); | |
28c97730 | 3757 | DRM_DEBUG_KMS("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm); |
7662c8bd SL |
3758 | |
3759 | /* | |
3760 | * Overlay gets an aggressive default since video jitter is bad. | |
3761 | */ | |
3762 | cwm = 2; | |
3763 | ||
dff33cfc | 3764 | /* Calc sr entries for one plane configs */ |
652c393a JB |
3765 | if (HAS_FW_BLC(dev) && sr_hdisplay && |
3766 | (!planea_clock || !planeb_clock)) { | |
dff33cfc | 3767 | /* self-refresh has much higher latency */ |
69e302a9 | 3768 | static const int sr_latency_ns = 6000; |
dff33cfc | 3769 | |
7662c8bd | 3770 | sr_clock = planea_clock ? planea_clock : planeb_clock; |
fa143215 | 3771 | line_time_us = ((sr_htotal * 1000) / sr_clock); |
dff33cfc JB |
3772 | |
3773 | /* Use ns/us then divide to preserve precision */ | |
fa143215 | 3774 | sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
5eddb70b | 3775 | pixel_size * sr_hdisplay; |
8de9b311 | 3776 | sr_entries = DIV_ROUND_UP(sr_entries, cacheline_size); |
28c97730 | 3777 | DRM_DEBUG_KMS("self-refresh entries: %d\n", sr_entries); |
dff33cfc JB |
3778 | srwm = total_size - sr_entries; |
3779 | if (srwm < 0) | |
3780 | srwm = 1; | |
ee980b80 LP |
3781 | |
3782 | if (IS_I945G(dev) || IS_I945GM(dev)) | |
3783 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_FIFO_MASK | (srwm & 0xff)); | |
3784 | else if (IS_I915GM(dev)) { | |
3785 | /* 915M has a smaller SRWM field */ | |
3786 | I915_WRITE(FW_BLC_SELF, srwm & 0x3f); | |
3787 | I915_WRITE(INSTPM, I915_READ(INSTPM) | INSTPM_SELF_EN); | |
3788 | } | |
33c5fd12 DJ |
3789 | } else { |
3790 | /* Turn off self refresh if both pipes are enabled */ | |
ee980b80 LP |
3791 | if (IS_I945G(dev) || IS_I945GM(dev)) { |
3792 | I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF) | |
3793 | & ~FW_BLC_SELF_EN); | |
3794 | } else if (IS_I915GM(dev)) { | |
3795 | I915_WRITE(INSTPM, I915_READ(INSTPM) & ~INSTPM_SELF_EN); | |
3796 | } | |
7662c8bd SL |
3797 | } |
3798 | ||
28c97730 | 3799 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n", |
5eddb70b | 3800 | planea_wm, planeb_wm, cwm, srwm); |
7662c8bd | 3801 | |
dff33cfc JB |
3802 | fwater_lo = ((planeb_wm & 0x3f) << 16) | (planea_wm & 0x3f); |
3803 | fwater_hi = (cwm & 0x1f); | |
3804 | ||
3805 | /* Set request length to 8 cachelines per fetch */ | |
3806 | fwater_lo = fwater_lo | (1 << 24) | (1 << 8); | |
3807 | fwater_hi = fwater_hi | (1 << 8); | |
7662c8bd SL |
3808 | |
3809 | I915_WRITE(FW_BLC, fwater_lo); | |
3810 | I915_WRITE(FW_BLC2, fwater_hi); | |
7662c8bd SL |
3811 | } |
3812 | ||
e70236a8 | 3813 | static void i830_update_wm(struct drm_device *dev, int planea_clock, int unused, |
fa143215 | 3814 | int unused2, int unused3, int pixel_size) |
7662c8bd SL |
3815 | { |
3816 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f3601326 | 3817 | uint32_t fwater_lo = I915_READ(FW_BLC) & ~0xfff; |
dff33cfc | 3818 | int planea_wm; |
7662c8bd | 3819 | |
e70236a8 | 3820 | i830_wm_info.fifo_size = dev_priv->display.get_fifo_size(dev, 0); |
7662c8bd | 3821 | |
dff33cfc JB |
3822 | planea_wm = intel_calculate_wm(planea_clock, &i830_wm_info, |
3823 | pixel_size, latency_ns); | |
f3601326 JB |
3824 | fwater_lo |= (3<<8) | planea_wm; |
3825 | ||
28c97730 | 3826 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d\n", planea_wm); |
7662c8bd SL |
3827 | |
3828 | I915_WRITE(FW_BLC, fwater_lo); | |
3829 | } | |
3830 | ||
7f8a8569 | 3831 | #define ILK_LP0_PLANE_LATENCY 700 |
c936f44d | 3832 | #define ILK_LP0_CURSOR_LATENCY 1300 |
7f8a8569 | 3833 | |
4ed765f9 CW |
3834 | static bool ironlake_compute_wm0(struct drm_device *dev, |
3835 | int pipe, | |
1398261a | 3836 | const struct intel_watermark_params *display, |
a0fa62d3 | 3837 | int display_latency_ns, |
1398261a | 3838 | const struct intel_watermark_params *cursor, |
a0fa62d3 | 3839 | int cursor_latency_ns, |
4ed765f9 CW |
3840 | int *plane_wm, |
3841 | int *cursor_wm) | |
7f8a8569 | 3842 | { |
c936f44d | 3843 | struct drm_crtc *crtc; |
db66e37d CW |
3844 | int htotal, hdisplay, clock, pixel_size; |
3845 | int line_time_us, line_count; | |
3846 | int entries, tlb_miss; | |
c936f44d | 3847 | |
4ed765f9 CW |
3848 | crtc = intel_get_crtc_for_pipe(dev, pipe); |
3849 | if (crtc->fb == NULL || !crtc->enabled) | |
3850 | return false; | |
7f8a8569 | 3851 | |
4ed765f9 CW |
3852 | htotal = crtc->mode.htotal; |
3853 | hdisplay = crtc->mode.hdisplay; | |
3854 | clock = crtc->mode.clock; | |
3855 | pixel_size = crtc->fb->bits_per_pixel / 8; | |
3856 | ||
3857 | /* Use the small buffer method to calculate plane watermark */ | |
a0fa62d3 | 3858 | entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000; |
db66e37d CW |
3859 | tlb_miss = display->fifo_size*display->cacheline_size - hdisplay * 8; |
3860 | if (tlb_miss > 0) | |
3861 | entries += tlb_miss; | |
1398261a YL |
3862 | entries = DIV_ROUND_UP(entries, display->cacheline_size); |
3863 | *plane_wm = entries + display->guard_size; | |
3864 | if (*plane_wm > (int)display->max_wm) | |
3865 | *plane_wm = display->max_wm; | |
4ed765f9 CW |
3866 | |
3867 | /* Use the large buffer method to calculate cursor watermark */ | |
3868 | line_time_us = ((htotal * 1000) / clock); | |
a0fa62d3 | 3869 | line_count = (cursor_latency_ns / line_time_us + 1000) / 1000; |
4ed765f9 | 3870 | entries = line_count * 64 * pixel_size; |
db66e37d CW |
3871 | tlb_miss = cursor->fifo_size*cursor->cacheline_size - hdisplay * 8; |
3872 | if (tlb_miss > 0) | |
3873 | entries += tlb_miss; | |
1398261a YL |
3874 | entries = DIV_ROUND_UP(entries, cursor->cacheline_size); |
3875 | *cursor_wm = entries + cursor->guard_size; | |
3876 | if (*cursor_wm > (int)cursor->max_wm) | |
3877 | *cursor_wm = (int)cursor->max_wm; | |
7f8a8569 | 3878 | |
4ed765f9 CW |
3879 | return true; |
3880 | } | |
c936f44d | 3881 | |
1398261a YL |
3882 | /* |
3883 | * Check the wm result. | |
3884 | * | |
3885 | * If any calculated watermark values is larger than the maximum value that | |
3886 | * can be programmed into the associated watermark register, that watermark | |
3887 | * must be disabled. | |
1398261a | 3888 | */ |
b79d4990 JB |
3889 | static bool ironlake_check_srwm(struct drm_device *dev, int level, |
3890 | int fbc_wm, int display_wm, int cursor_wm, | |
3891 | const struct intel_watermark_params *display, | |
3892 | const struct intel_watermark_params *cursor) | |
1398261a YL |
3893 | { |
3894 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3895 | ||
3896 | DRM_DEBUG_KMS("watermark %d: display plane %d, fbc lines %d," | |
3897 | " cursor %d\n", level, display_wm, fbc_wm, cursor_wm); | |
3898 | ||
3899 | if (fbc_wm > SNB_FBC_MAX_SRWM) { | |
3900 | DRM_DEBUG_KMS("fbc watermark(%d) is too large(%d), disabling wm%d+\n", | |
b79d4990 | 3901 | fbc_wm, SNB_FBC_MAX_SRWM, level); |
1398261a YL |
3902 | |
3903 | /* fbc has it's own way to disable FBC WM */ | |
3904 | I915_WRITE(DISP_ARB_CTL, | |
3905 | I915_READ(DISP_ARB_CTL) | DISP_FBC_WM_DIS); | |
3906 | return false; | |
3907 | } | |
3908 | ||
b79d4990 | 3909 | if (display_wm > display->max_wm) { |
1398261a | 3910 | DRM_DEBUG_KMS("display watermark(%d) is too large(%d), disabling wm%d+\n", |
b79d4990 | 3911 | display_wm, SNB_DISPLAY_MAX_SRWM, level); |
1398261a YL |
3912 | return false; |
3913 | } | |
3914 | ||
b79d4990 | 3915 | if (cursor_wm > cursor->max_wm) { |
1398261a | 3916 | DRM_DEBUG_KMS("cursor watermark(%d) is too large(%d), disabling wm%d+\n", |
b79d4990 | 3917 | cursor_wm, SNB_CURSOR_MAX_SRWM, level); |
1398261a YL |
3918 | return false; |
3919 | } | |
3920 | ||
3921 | if (!(fbc_wm || display_wm || cursor_wm)) { | |
3922 | DRM_DEBUG_KMS("latency %d is 0, disabling wm%d+\n", level, level); | |
3923 | return false; | |
3924 | } | |
3925 | ||
3926 | return true; | |
3927 | } | |
3928 | ||
3929 | /* | |
3930 | * Compute watermark values of WM[1-3], | |
3931 | */ | |
b79d4990 JB |
3932 | static bool ironlake_compute_srwm(struct drm_device *dev, int level, |
3933 | int hdisplay, int htotal, | |
3934 | int pixel_size, int clock, int latency_ns, | |
3935 | const struct intel_watermark_params *display, | |
3936 | const struct intel_watermark_params *cursor, | |
3937 | int *fbc_wm, int *display_wm, int *cursor_wm) | |
1398261a YL |
3938 | { |
3939 | ||
3940 | unsigned long line_time_us; | |
b79d4990 | 3941 | int line_count, line_size; |
1398261a YL |
3942 | int small, large; |
3943 | int entries; | |
1398261a YL |
3944 | |
3945 | if (!latency_ns) { | |
3946 | *fbc_wm = *display_wm = *cursor_wm = 0; | |
3947 | return false; | |
3948 | } | |
3949 | ||
3950 | line_time_us = (htotal * 1000) / clock; | |
3951 | line_count = (latency_ns / line_time_us + 1000) / 1000; | |
3952 | line_size = hdisplay * pixel_size; | |
3953 | ||
3954 | /* Use the minimum of the small and large buffer method for primary */ | |
3955 | small = ((clock * pixel_size / 1000) * latency_ns) / 1000; | |
3956 | large = line_count * line_size; | |
3957 | ||
b79d4990 JB |
3958 | entries = DIV_ROUND_UP(min(small, large), display->cacheline_size); |
3959 | *display_wm = entries + display->guard_size; | |
1398261a YL |
3960 | |
3961 | /* | |
b79d4990 | 3962 | * Spec says: |
1398261a YL |
3963 | * FBC WM = ((Final Primary WM * 64) / number of bytes per line) + 2 |
3964 | */ | |
3965 | *fbc_wm = DIV_ROUND_UP(*display_wm * 64, line_size) + 2; | |
3966 | ||
3967 | /* calculate the self-refresh watermark for display cursor */ | |
3968 | entries = line_count * pixel_size * 64; | |
b79d4990 JB |
3969 | entries = DIV_ROUND_UP(entries, cursor->cacheline_size); |
3970 | *cursor_wm = entries + cursor->guard_size; | |
1398261a | 3971 | |
b79d4990 JB |
3972 | return ironlake_check_srwm(dev, level, |
3973 | *fbc_wm, *display_wm, *cursor_wm, | |
3974 | display, cursor); | |
3975 | } | |
3976 | ||
3977 | static void ironlake_update_wm(struct drm_device *dev, | |
3978 | int planea_clock, int planeb_clock, | |
3979 | int hdisplay, int htotal, | |
3980 | int pixel_size) | |
3981 | { | |
3982 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3983 | int fbc_wm, plane_wm, cursor_wm, enabled; | |
3984 | int clock; | |
3985 | ||
3986 | enabled = 0; | |
3987 | if (ironlake_compute_wm0(dev, 0, | |
3988 | &ironlake_display_wm_info, | |
3989 | ILK_LP0_PLANE_LATENCY, | |
3990 | &ironlake_cursor_wm_info, | |
3991 | ILK_LP0_CURSOR_LATENCY, | |
3992 | &plane_wm, &cursor_wm)) { | |
3993 | I915_WRITE(WM0_PIPEA_ILK, | |
3994 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); | |
3995 | DRM_DEBUG_KMS("FIFO watermarks For pipe A -" | |
3996 | " plane %d, " "cursor: %d\n", | |
3997 | plane_wm, cursor_wm); | |
3998 | enabled++; | |
3999 | } | |
4000 | ||
4001 | if (ironlake_compute_wm0(dev, 1, | |
4002 | &ironlake_display_wm_info, | |
4003 | ILK_LP0_PLANE_LATENCY, | |
4004 | &ironlake_cursor_wm_info, | |
4005 | ILK_LP0_CURSOR_LATENCY, | |
4006 | &plane_wm, &cursor_wm)) { | |
4007 | I915_WRITE(WM0_PIPEB_ILK, | |
4008 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); | |
4009 | DRM_DEBUG_KMS("FIFO watermarks For pipe B -" | |
4010 | " plane %d, cursor: %d\n", | |
4011 | plane_wm, cursor_wm); | |
4012 | enabled++; | |
4013 | } | |
4014 | ||
4015 | /* | |
4016 | * Calculate and update the self-refresh watermark only when one | |
4017 | * display plane is used. | |
4018 | */ | |
4019 | I915_WRITE(WM3_LP_ILK, 0); | |
4020 | I915_WRITE(WM2_LP_ILK, 0); | |
4021 | I915_WRITE(WM1_LP_ILK, 0); | |
4022 | ||
4023 | if (enabled != 1) | |
4024 | return; | |
4025 | ||
4026 | clock = planea_clock ? planea_clock : planeb_clock; | |
4027 | ||
4028 | /* WM1 */ | |
4029 | if (!ironlake_compute_srwm(dev, 1, hdisplay, htotal, pixel_size, | |
4030 | clock, ILK_READ_WM1_LATENCY() * 500, | |
4031 | &ironlake_display_srwm_info, | |
4032 | &ironlake_cursor_srwm_info, | |
4033 | &fbc_wm, &plane_wm, &cursor_wm)) | |
4034 | return; | |
4035 | ||
4036 | I915_WRITE(WM1_LP_ILK, | |
4037 | WM1_LP_SR_EN | | |
4038 | (ILK_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) | | |
4039 | (fbc_wm << WM1_LP_FBC_SHIFT) | | |
4040 | (plane_wm << WM1_LP_SR_SHIFT) | | |
4041 | cursor_wm); | |
4042 | ||
4043 | /* WM2 */ | |
4044 | if (!ironlake_compute_srwm(dev, 2, hdisplay, htotal, pixel_size, | |
4045 | clock, ILK_READ_WM2_LATENCY() * 500, | |
4046 | &ironlake_display_srwm_info, | |
4047 | &ironlake_cursor_srwm_info, | |
4048 | &fbc_wm, &plane_wm, &cursor_wm)) | |
4049 | return; | |
4050 | ||
4051 | I915_WRITE(WM2_LP_ILK, | |
4052 | WM2_LP_EN | | |
4053 | (ILK_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) | | |
4054 | (fbc_wm << WM1_LP_FBC_SHIFT) | | |
4055 | (plane_wm << WM1_LP_SR_SHIFT) | | |
4056 | cursor_wm); | |
4057 | ||
4058 | /* | |
4059 | * WM3 is unsupported on ILK, probably because we don't have latency | |
4060 | * data for that power state | |
4061 | */ | |
1398261a YL |
4062 | } |
4063 | ||
4064 | static void sandybridge_update_wm(struct drm_device *dev, | |
4065 | int planea_clock, int planeb_clock, | |
4066 | int hdisplay, int htotal, | |
4067 | int pixel_size) | |
4068 | { | |
4069 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a0fa62d3 | 4070 | int latency = SNB_READ_WM0_LATENCY() * 100; /* In unit 0.1us */ |
1398261a YL |
4071 | int fbc_wm, plane_wm, cursor_wm, enabled; |
4072 | int clock; | |
4073 | ||
4074 | enabled = 0; | |
4075 | if (ironlake_compute_wm0(dev, 0, | |
4076 | &sandybridge_display_wm_info, latency, | |
4077 | &sandybridge_cursor_wm_info, latency, | |
4078 | &plane_wm, &cursor_wm)) { | |
4079 | I915_WRITE(WM0_PIPEA_ILK, | |
4080 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); | |
4081 | DRM_DEBUG_KMS("FIFO watermarks For pipe A -" | |
4082 | " plane %d, " "cursor: %d\n", | |
4083 | plane_wm, cursor_wm); | |
4084 | enabled++; | |
4085 | } | |
4086 | ||
4087 | if (ironlake_compute_wm0(dev, 1, | |
4088 | &sandybridge_display_wm_info, latency, | |
4089 | &sandybridge_cursor_wm_info, latency, | |
4090 | &plane_wm, &cursor_wm)) { | |
4091 | I915_WRITE(WM0_PIPEB_ILK, | |
4092 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); | |
4093 | DRM_DEBUG_KMS("FIFO watermarks For pipe B -" | |
4094 | " plane %d, cursor: %d\n", | |
4095 | plane_wm, cursor_wm); | |
4096 | enabled++; | |
4097 | } | |
4098 | ||
4099 | /* | |
4100 | * Calculate and update the self-refresh watermark only when one | |
4101 | * display plane is used. | |
4102 | * | |
4103 | * SNB support 3 levels of watermark. | |
4104 | * | |
4105 | * WM1/WM2/WM2 watermarks have to be enabled in the ascending order, | |
4106 | * and disabled in the descending order | |
4107 | * | |
4108 | */ | |
4109 | I915_WRITE(WM3_LP_ILK, 0); | |
4110 | I915_WRITE(WM2_LP_ILK, 0); | |
4111 | I915_WRITE(WM1_LP_ILK, 0); | |
4112 | ||
4113 | if (enabled != 1) | |
4114 | return; | |
4115 | ||
4116 | clock = planea_clock ? planea_clock : planeb_clock; | |
4117 | ||
4118 | /* WM1 */ | |
b79d4990 JB |
4119 | if (!ironlake_compute_srwm(dev, 1, hdisplay, htotal, pixel_size, |
4120 | clock, SNB_READ_WM1_LATENCY() * 500, | |
4121 | &sandybridge_display_srwm_info, | |
4122 | &sandybridge_cursor_srwm_info, | |
4123 | &fbc_wm, &plane_wm, &cursor_wm)) | |
1398261a YL |
4124 | return; |
4125 | ||
4126 | I915_WRITE(WM1_LP_ILK, | |
4127 | WM1_LP_SR_EN | | |
4128 | (SNB_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) | | |
4129 | (fbc_wm << WM1_LP_FBC_SHIFT) | | |
4130 | (plane_wm << WM1_LP_SR_SHIFT) | | |
4131 | cursor_wm); | |
4132 | ||
4133 | /* WM2 */ | |
b79d4990 JB |
4134 | if (!ironlake_compute_srwm(dev, 2, |
4135 | hdisplay, htotal, pixel_size, | |
4136 | clock, SNB_READ_WM2_LATENCY() * 500, | |
4137 | &sandybridge_display_srwm_info, | |
4138 | &sandybridge_cursor_srwm_info, | |
4139 | &fbc_wm, &plane_wm, &cursor_wm)) | |
1398261a YL |
4140 | return; |
4141 | ||
4142 | I915_WRITE(WM2_LP_ILK, | |
4143 | WM2_LP_EN | | |
4144 | (SNB_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) | | |
4145 | (fbc_wm << WM1_LP_FBC_SHIFT) | | |
4146 | (plane_wm << WM1_LP_SR_SHIFT) | | |
4147 | cursor_wm); | |
4148 | ||
4149 | /* WM3 */ | |
b79d4990 JB |
4150 | if (!ironlake_compute_srwm(dev, 3, |
4151 | hdisplay, htotal, pixel_size, | |
4152 | clock, SNB_READ_WM3_LATENCY() * 500, | |
4153 | &sandybridge_display_srwm_info, | |
4154 | &sandybridge_cursor_srwm_info, | |
4155 | &fbc_wm, &plane_wm, &cursor_wm)) | |
1398261a YL |
4156 | return; |
4157 | ||
4158 | I915_WRITE(WM3_LP_ILK, | |
4159 | WM3_LP_EN | | |
4160 | (SNB_READ_WM3_LATENCY() << WM1_LP_LATENCY_SHIFT) | | |
4161 | (fbc_wm << WM1_LP_FBC_SHIFT) | | |
4162 | (plane_wm << WM1_LP_SR_SHIFT) | | |
4163 | cursor_wm); | |
4164 | } | |
4165 | ||
7662c8bd SL |
4166 | /** |
4167 | * intel_update_watermarks - update FIFO watermark values based on current modes | |
4168 | * | |
4169 | * Calculate watermark values for the various WM regs based on current mode | |
4170 | * and plane configuration. | |
4171 | * | |
4172 | * There are several cases to deal with here: | |
4173 | * - normal (i.e. non-self-refresh) | |
4174 | * - self-refresh (SR) mode | |
4175 | * - lines are large relative to FIFO size (buffer can hold up to 2) | |
4176 | * - lines are small relative to FIFO size (buffer can hold more than 2 | |
4177 | * lines), so need to account for TLB latency | |
4178 | * | |
4179 | * The normal calculation is: | |
4180 | * watermark = dotclock * bytes per pixel * latency | |
4181 | * where latency is platform & configuration dependent (we assume pessimal | |
4182 | * values here). | |
4183 | * | |
4184 | * The SR calculation is: | |
4185 | * watermark = (trunc(latency/line time)+1) * surface width * | |
4186 | * bytes per pixel | |
4187 | * where | |
4188 | * line time = htotal / dotclock | |
fa143215 | 4189 | * surface width = hdisplay for normal plane and 64 for cursor |
7662c8bd SL |
4190 | * and latency is assumed to be high, as above. |
4191 | * | |
4192 | * The final value programmed to the register should always be rounded up, | |
4193 | * and include an extra 2 entries to account for clock crossings. | |
4194 | * | |
4195 | * We don't use the sprite, so we can ignore that. And on Crestline we have | |
4196 | * to set the non-SR watermarks to 8. | |
5eddb70b | 4197 | */ |
7662c8bd SL |
4198 | static void intel_update_watermarks(struct drm_device *dev) |
4199 | { | |
e70236a8 | 4200 | struct drm_i915_private *dev_priv = dev->dev_private; |
7662c8bd | 4201 | struct drm_crtc *crtc; |
7662c8bd SL |
4202 | int sr_hdisplay = 0; |
4203 | unsigned long planea_clock = 0, planeb_clock = 0, sr_clock = 0; | |
4204 | int enabled = 0, pixel_size = 0; | |
fa143215 | 4205 | int sr_htotal = 0; |
7662c8bd | 4206 | |
c03342fa ZW |
4207 | if (!dev_priv->display.update_wm) |
4208 | return; | |
4209 | ||
7662c8bd SL |
4210 | /* Get the clock config from both planes */ |
4211 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
debcaddc | 4212 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
f7abfe8b | 4213 | if (intel_crtc->active) { |
7662c8bd SL |
4214 | enabled++; |
4215 | if (intel_crtc->plane == 0) { | |
28c97730 | 4216 | DRM_DEBUG_KMS("plane A (pipe %d) clock: %d\n", |
5eddb70b | 4217 | intel_crtc->pipe, crtc->mode.clock); |
7662c8bd SL |
4218 | planea_clock = crtc->mode.clock; |
4219 | } else { | |
28c97730 | 4220 | DRM_DEBUG_KMS("plane B (pipe %d) clock: %d\n", |
5eddb70b | 4221 | intel_crtc->pipe, crtc->mode.clock); |
7662c8bd SL |
4222 | planeb_clock = crtc->mode.clock; |
4223 | } | |
4224 | sr_hdisplay = crtc->mode.hdisplay; | |
4225 | sr_clock = crtc->mode.clock; | |
fa143215 | 4226 | sr_htotal = crtc->mode.htotal; |
7662c8bd SL |
4227 | if (crtc->fb) |
4228 | pixel_size = crtc->fb->bits_per_pixel / 8; | |
4229 | else | |
4230 | pixel_size = 4; /* by default */ | |
4231 | } | |
4232 | } | |
4233 | ||
4234 | if (enabled <= 0) | |
4235 | return; | |
4236 | ||
e70236a8 | 4237 | dev_priv->display.update_wm(dev, planea_clock, planeb_clock, |
fa143215 | 4238 | sr_hdisplay, sr_htotal, pixel_size); |
7662c8bd SL |
4239 | } |
4240 | ||
a7615030 CW |
4241 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
4242 | { | |
4243 | return dev_priv->lvds_use_ssc && i915_panel_use_ssc; | |
4244 | } | |
4245 | ||
5c3b82e2 CW |
4246 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
4247 | struct drm_display_mode *mode, | |
4248 | struct drm_display_mode *adjusted_mode, | |
4249 | int x, int y, | |
4250 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
4251 | { |
4252 | struct drm_device *dev = crtc->dev; | |
4253 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4254 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4255 | int pipe = intel_crtc->pipe; | |
80824003 | 4256 | int plane = intel_crtc->plane; |
5eddb70b | 4257 | u32 fp_reg, dpll_reg; |
c751ce4f | 4258 | int refclk, num_connectors = 0; |
652c393a | 4259 | intel_clock_t clock, reduced_clock; |
5eddb70b | 4260 | u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf; |
652c393a | 4261 | bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false; |
a4fc5ed6 | 4262 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
8e647a27 | 4263 | struct intel_encoder *has_edp_encoder = NULL; |
79e53945 | 4264 | struct drm_mode_config *mode_config = &dev->mode_config; |
5eddb70b | 4265 | struct intel_encoder *encoder; |
d4906093 | 4266 | const intel_limit_t *limit; |
5c3b82e2 | 4267 | int ret; |
2c07245f | 4268 | struct fdi_m_n m_n = {0}; |
5eddb70b | 4269 | u32 reg, temp; |
5eb08b69 | 4270 | int target_clock; |
79e53945 JB |
4271 | |
4272 | drm_vblank_pre_modeset(dev, pipe); | |
4273 | ||
5eddb70b CW |
4274 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
4275 | if (encoder->base.crtc != crtc) | |
79e53945 JB |
4276 | continue; |
4277 | ||
5eddb70b | 4278 | switch (encoder->type) { |
79e53945 JB |
4279 | case INTEL_OUTPUT_LVDS: |
4280 | is_lvds = true; | |
4281 | break; | |
4282 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 4283 | case INTEL_OUTPUT_HDMI: |
79e53945 | 4284 | is_sdvo = true; |
5eddb70b | 4285 | if (encoder->needs_tv_clock) |
e2f0ba97 | 4286 | is_tv = true; |
79e53945 JB |
4287 | break; |
4288 | case INTEL_OUTPUT_DVO: | |
4289 | is_dvo = true; | |
4290 | break; | |
4291 | case INTEL_OUTPUT_TVOUT: | |
4292 | is_tv = true; | |
4293 | break; | |
4294 | case INTEL_OUTPUT_ANALOG: | |
4295 | is_crt = true; | |
4296 | break; | |
a4fc5ed6 KP |
4297 | case INTEL_OUTPUT_DISPLAYPORT: |
4298 | is_dp = true; | |
4299 | break; | |
32f9d658 | 4300 | case INTEL_OUTPUT_EDP: |
5eddb70b | 4301 | has_edp_encoder = encoder; |
32f9d658 | 4302 | break; |
79e53945 | 4303 | } |
43565a06 | 4304 | |
c751ce4f | 4305 | num_connectors++; |
79e53945 JB |
4306 | } |
4307 | ||
a7615030 | 4308 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
43565a06 | 4309 | refclk = dev_priv->lvds_ssc_freq * 1000; |
28c97730 | 4310 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
5eddb70b | 4311 | refclk / 1000); |
a6c45cf0 | 4312 | } else if (!IS_GEN2(dev)) { |
79e53945 | 4313 | refclk = 96000; |
1cb1b75e JB |
4314 | if (HAS_PCH_SPLIT(dev) && |
4315 | (!has_edp_encoder || intel_encoder_is_pch_edp(&has_edp_encoder->base))) | |
2c07245f | 4316 | refclk = 120000; /* 120Mhz refclk */ |
79e53945 JB |
4317 | } else { |
4318 | refclk = 48000; | |
4319 | } | |
4320 | ||
d4906093 ML |
4321 | /* |
4322 | * Returns a set of divisors for the desired target clock with the given | |
4323 | * refclk, or FALSE. The returned values represent the clock equation: | |
4324 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4325 | */ | |
1b894b59 | 4326 | limit = intel_limit(crtc, refclk); |
d4906093 | 4327 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock); |
79e53945 JB |
4328 | if (!ok) { |
4329 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
1f803ee5 | 4330 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 4331 | return -EINVAL; |
79e53945 JB |
4332 | } |
4333 | ||
cda4b7d3 | 4334 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4335 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4336 | |
ddc9003c ZY |
4337 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
4338 | has_reduced_clock = limit->find_pll(limit, crtc, | |
5eddb70b CW |
4339 | dev_priv->lvds_downclock, |
4340 | refclk, | |
4341 | &reduced_clock); | |
18f9ed12 ZY |
4342 | if (has_reduced_clock && (clock.p != reduced_clock.p)) { |
4343 | /* | |
4344 | * If the different P is found, it means that we can't | |
4345 | * switch the display clock by using the FP0/FP1. | |
4346 | * In such case we will disable the LVDS downclock | |
4347 | * feature. | |
4348 | */ | |
4349 | DRM_DEBUG_KMS("Different P is found for " | |
5eddb70b | 4350 | "LVDS clock/downclock\n"); |
18f9ed12 ZY |
4351 | has_reduced_clock = 0; |
4352 | } | |
652c393a | 4353 | } |
7026d4ac ZW |
4354 | /* SDVO TV has fixed PLL values depend on its clock range, |
4355 | this mirrors vbios setting. */ | |
4356 | if (is_sdvo && is_tv) { | |
4357 | if (adjusted_mode->clock >= 100000 | |
5eddb70b | 4358 | && adjusted_mode->clock < 140500) { |
7026d4ac ZW |
4359 | clock.p1 = 2; |
4360 | clock.p2 = 10; | |
4361 | clock.n = 3; | |
4362 | clock.m1 = 16; | |
4363 | clock.m2 = 8; | |
4364 | } else if (adjusted_mode->clock >= 140500 | |
5eddb70b | 4365 | && adjusted_mode->clock <= 200000) { |
7026d4ac ZW |
4366 | clock.p1 = 1; |
4367 | clock.p2 = 10; | |
4368 | clock.n = 6; | |
4369 | clock.m1 = 12; | |
4370 | clock.m2 = 8; | |
4371 | } | |
4372 | } | |
4373 | ||
2c07245f | 4374 | /* FDI link */ |
bad720ff | 4375 | if (HAS_PCH_SPLIT(dev)) { |
49078f7d | 4376 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
77ffb597 | 4377 | int lane = 0, link_bw, bpp; |
5c5313c8 | 4378 | /* CPU eDP doesn't require FDI link, so just set DP M/N |
32f9d658 | 4379 | according to current link config */ |
858bc21f | 4380 | if (has_edp_encoder && !intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
5eb08b69 | 4381 | target_clock = mode->clock; |
8e647a27 CW |
4382 | intel_edp_link_config(has_edp_encoder, |
4383 | &lane, &link_bw); | |
32f9d658 | 4384 | } else { |
5c5313c8 | 4385 | /* [e]DP over FDI requires target mode clock |
32f9d658 | 4386 | instead of link clock */ |
5c5313c8 | 4387 | if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base)) |
32f9d658 ZW |
4388 | target_clock = mode->clock; |
4389 | else | |
4390 | target_clock = adjusted_mode->clock; | |
021357ac CW |
4391 | |
4392 | /* FDI is a binary signal running at ~2.7GHz, encoding | |
4393 | * each output octet as 10 bits. The actual frequency | |
4394 | * is stored as a divider into a 100MHz clock, and the | |
4395 | * mode pixel clock is stored in units of 1KHz. | |
4396 | * Hence the bw of each lane in terms of the mode signal | |
4397 | * is: | |
4398 | */ | |
4399 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
32f9d658 | 4400 | } |
58a27471 ZW |
4401 | |
4402 | /* determine panel color depth */ | |
5eddb70b | 4403 | temp = I915_READ(PIPECONF(pipe)); |
e5a95eb7 ZY |
4404 | temp &= ~PIPE_BPC_MASK; |
4405 | if (is_lvds) { | |
e5a95eb7 | 4406 | /* the BPC will be 6 if it is 18-bit LVDS panel */ |
5eddb70b | 4407 | if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == LVDS_A3_POWER_UP) |
e5a95eb7 ZY |
4408 | temp |= PIPE_8BPC; |
4409 | else | |
4410 | temp |= PIPE_6BPC; | |
1d850362 | 4411 | } else if (has_edp_encoder) { |
5ceb0f9b | 4412 | switch (dev_priv->edp.bpp/3) { |
885a5fb5 ZW |
4413 | case 8: |
4414 | temp |= PIPE_8BPC; | |
4415 | break; | |
4416 | case 10: | |
4417 | temp |= PIPE_10BPC; | |
4418 | break; | |
4419 | case 6: | |
4420 | temp |= PIPE_6BPC; | |
4421 | break; | |
4422 | case 12: | |
4423 | temp |= PIPE_12BPC; | |
4424 | break; | |
4425 | } | |
e5a95eb7 ZY |
4426 | } else |
4427 | temp |= PIPE_8BPC; | |
5eddb70b | 4428 | I915_WRITE(PIPECONF(pipe), temp); |
58a27471 ZW |
4429 | |
4430 | switch (temp & PIPE_BPC_MASK) { | |
4431 | case PIPE_8BPC: | |
4432 | bpp = 24; | |
4433 | break; | |
4434 | case PIPE_10BPC: | |
4435 | bpp = 30; | |
4436 | break; | |
4437 | case PIPE_6BPC: | |
4438 | bpp = 18; | |
4439 | break; | |
4440 | case PIPE_12BPC: | |
4441 | bpp = 36; | |
4442 | break; | |
4443 | default: | |
4444 | DRM_ERROR("unknown pipe bpc value\n"); | |
4445 | bpp = 24; | |
4446 | } | |
4447 | ||
77ffb597 AJ |
4448 | if (!lane) { |
4449 | /* | |
4450 | * Account for spread spectrum to avoid | |
4451 | * oversubscribing the link. Max center spread | |
4452 | * is 2.5%; use 5% for safety's sake. | |
4453 | */ | |
4454 | u32 bps = target_clock * bpp * 21 / 20; | |
4455 | lane = bps / (link_bw * 8) + 1; | |
4456 | } | |
4457 | ||
4458 | intel_crtc->fdi_lanes = lane; | |
4459 | ||
49078f7d CW |
4460 | if (pixel_multiplier > 1) |
4461 | link_bw *= pixel_multiplier; | |
f2b115e6 | 4462 | ironlake_compute_m_n(bpp, lane, target_clock, link_bw, &m_n); |
5eb08b69 | 4463 | } |
2c07245f | 4464 | |
c038e51e ZW |
4465 | /* Ironlake: try to setup display ref clock before DPLL |
4466 | * enabling. This is only under driver's control after | |
4467 | * PCH B stepping, previous chipset stepping should be | |
4468 | * ignoring this setting. | |
4469 | */ | |
bad720ff | 4470 | if (HAS_PCH_SPLIT(dev)) { |
c038e51e ZW |
4471 | temp = I915_READ(PCH_DREF_CONTROL); |
4472 | /* Always enable nonspread source */ | |
4473 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; | |
4474 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; | |
c038e51e ZW |
4475 | temp &= ~DREF_SSC_SOURCE_MASK; |
4476 | temp |= DREF_SSC_SOURCE_ENABLE; | |
4477 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
c038e51e | 4478 | |
5eddb70b | 4479 | POSTING_READ(PCH_DREF_CONTROL); |
c038e51e ZW |
4480 | udelay(200); |
4481 | ||
8e647a27 | 4482 | if (has_edp_encoder) { |
a7615030 | 4483 | if (intel_panel_use_ssc(dev_priv)) { |
c038e51e ZW |
4484 | temp |= DREF_SSC1_ENABLE; |
4485 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
c038e51e | 4486 | |
5eddb70b | 4487 | POSTING_READ(PCH_DREF_CONTROL); |
c038e51e | 4488 | udelay(200); |
7f823282 JB |
4489 | } |
4490 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
4491 | ||
4492 | /* Enable CPU source on CPU attached eDP */ | |
4493 | if (!intel_encoder_is_pch_edp(&has_edp_encoder->base)) { | |
a7615030 | 4494 | if (intel_panel_use_ssc(dev_priv)) |
7f823282 JB |
4495 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
4496 | else | |
4497 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
c038e51e | 4498 | } else { |
7f823282 | 4499 | /* Enable SSC on PCH eDP if needed */ |
a7615030 | 4500 | if (intel_panel_use_ssc(dev_priv)) { |
7f823282 JB |
4501 | DRM_ERROR("enabling SSC on PCH\n"); |
4502 | temp |= DREF_SUPERSPREAD_SOURCE_ENABLE; | |
4503 | } | |
c038e51e | 4504 | } |
5eddb70b | 4505 | I915_WRITE(PCH_DREF_CONTROL, temp); |
7f823282 JB |
4506 | POSTING_READ(PCH_DREF_CONTROL); |
4507 | udelay(200); | |
c038e51e ZW |
4508 | } |
4509 | } | |
4510 | ||
f2b115e6 | 4511 | if (IS_PINEVIEW(dev)) { |
2177832f | 4512 | fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2; |
652c393a JB |
4513 | if (has_reduced_clock) |
4514 | fp2 = (1 << reduced_clock.n) << 16 | | |
4515 | reduced_clock.m1 << 8 | reduced_clock.m2; | |
4516 | } else { | |
2177832f | 4517 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
652c393a JB |
4518 | if (has_reduced_clock) |
4519 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
4520 | reduced_clock.m2; | |
4521 | } | |
79e53945 | 4522 | |
c1858123 CW |
4523 | /* Enable autotuning of the PLL clock (if permissible) */ |
4524 | if (HAS_PCH_SPLIT(dev)) { | |
4525 | int factor = 21; | |
4526 | ||
4527 | if (is_lvds) { | |
a7615030 | 4528 | if ((intel_panel_use_ssc(dev_priv) && |
c1858123 CW |
4529 | dev_priv->lvds_ssc_freq == 100) || |
4530 | (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) | |
4531 | factor = 25; | |
4532 | } else if (is_sdvo && is_tv) | |
4533 | factor = 20; | |
4534 | ||
4535 | if (clock.m1 < factor * clock.n) | |
4536 | fp |= FP_CB_TUNE; | |
4537 | } | |
4538 | ||
5eddb70b | 4539 | dpll = 0; |
bad720ff | 4540 | if (!HAS_PCH_SPLIT(dev)) |
2c07245f ZW |
4541 | dpll = DPLL_VGA_MODE_DIS; |
4542 | ||
a6c45cf0 | 4543 | if (!IS_GEN2(dev)) { |
79e53945 JB |
4544 | if (is_lvds) |
4545 | dpll |= DPLLB_MODE_LVDS; | |
4546 | else | |
4547 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
4548 | if (is_sdvo) { | |
6c9547ff CW |
4549 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
4550 | if (pixel_multiplier > 1) { | |
4551 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) | |
4552 | dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; | |
4553 | else if (HAS_PCH_SPLIT(dev)) | |
4554 | dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
4555 | } | |
79e53945 | 4556 | dpll |= DPLL_DVO_HIGH_SPEED; |
79e53945 | 4557 | } |
83240120 | 4558 | if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base)) |
a4fc5ed6 | 4559 | dpll |= DPLL_DVO_HIGH_SPEED; |
79e53945 JB |
4560 | |
4561 | /* compute bitmask from p1 value */ | |
f2b115e6 AJ |
4562 | if (IS_PINEVIEW(dev)) |
4563 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
2c07245f | 4564 | else { |
2177832f | 4565 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
2c07245f | 4566 | /* also FPA1 */ |
bad720ff | 4567 | if (HAS_PCH_SPLIT(dev)) |
2c07245f | 4568 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
652c393a JB |
4569 | if (IS_G4X(dev) && has_reduced_clock) |
4570 | dpll |= (1 << (reduced_clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
2c07245f | 4571 | } |
79e53945 JB |
4572 | switch (clock.p2) { |
4573 | case 5: | |
4574 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4575 | break; | |
4576 | case 7: | |
4577 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4578 | break; | |
4579 | case 10: | |
4580 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4581 | break; | |
4582 | case 14: | |
4583 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4584 | break; | |
4585 | } | |
a6c45cf0 | 4586 | if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev)) |
79e53945 JB |
4587 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); |
4588 | } else { | |
4589 | if (is_lvds) { | |
4590 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4591 | } else { | |
4592 | if (clock.p1 == 2) | |
4593 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
4594 | else | |
4595 | dpll |= (clock.p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4596 | if (clock.p2 == 4) | |
4597 | dpll |= PLL_P2_DIVIDE_BY_4; | |
4598 | } | |
4599 | } | |
4600 | ||
43565a06 KH |
4601 | if (is_sdvo && is_tv) |
4602 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
4603 | else if (is_tv) | |
79e53945 | 4604 | /* XXX: just matching BIOS for now */ |
43565a06 | 4605 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
79e53945 | 4606 | dpll |= 3; |
a7615030 | 4607 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 4608 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
4609 | else |
4610 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4611 | ||
4612 | /* setup pipeconf */ | |
5eddb70b | 4613 | pipeconf = I915_READ(PIPECONF(pipe)); |
79e53945 JB |
4614 | |
4615 | /* Set up the display plane register */ | |
4616 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4617 | ||
f2b115e6 | 4618 | /* Ironlake's plane is forced to pipe, bit 24 is to |
2c07245f | 4619 | enable color space conversion */ |
bad720ff | 4620 | if (!HAS_PCH_SPLIT(dev)) { |
2c07245f | 4621 | if (pipe == 0) |
80824003 | 4622 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; |
2c07245f ZW |
4623 | else |
4624 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
4625 | } | |
79e53945 | 4626 | |
a6c45cf0 | 4627 | if (pipe == 0 && INTEL_INFO(dev)->gen < 4) { |
79e53945 JB |
4628 | /* Enable pixel doubling when the dot clock is > 90% of the (display) |
4629 | * core speed. | |
4630 | * | |
4631 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
4632 | * pipe == 0 check? | |
4633 | */ | |
e70236a8 JB |
4634 | if (mode->clock > |
4635 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
5eddb70b | 4636 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
79e53945 | 4637 | else |
5eddb70b | 4638 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; |
79e53945 JB |
4639 | } |
4640 | ||
b24e7179 | 4641 | if (!HAS_PCH_SPLIT(dev)) |
65993d64 | 4642 | dpll |= DPLL_VCO_ENABLE; |
8d86dc6a | 4643 | |
28c97730 | 4644 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
79e53945 JB |
4645 | drm_mode_debug_printmodeline(mode); |
4646 | ||
f2b115e6 | 4647 | /* assign to Ironlake registers */ |
bad720ff | 4648 | if (HAS_PCH_SPLIT(dev)) { |
5eddb70b CW |
4649 | fp_reg = PCH_FP0(pipe); |
4650 | dpll_reg = PCH_DPLL(pipe); | |
4651 | } else { | |
4652 | fp_reg = FP0(pipe); | |
4653 | dpll_reg = DPLL(pipe); | |
2c07245f | 4654 | } |
79e53945 | 4655 | |
5c5313c8 JB |
4656 | /* PCH eDP needs FDI, but CPU eDP does not */ |
4657 | if (!has_edp_encoder || intel_encoder_is_pch_edp(&has_edp_encoder->base)) { | |
79e53945 JB |
4658 | I915_WRITE(fp_reg, fp); |
4659 | I915_WRITE(dpll_reg, dpll & ~DPLL_VCO_ENABLE); | |
5eddb70b CW |
4660 | |
4661 | POSTING_READ(dpll_reg); | |
79e53945 JB |
4662 | udelay(150); |
4663 | } | |
4664 | ||
8db9d77b ZW |
4665 | /* enable transcoder DPLL */ |
4666 | if (HAS_PCH_CPT(dev)) { | |
4667 | temp = I915_READ(PCH_DPLL_SEL); | |
5eddb70b CW |
4668 | if (pipe == 0) |
4669 | temp |= TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL; | |
8db9d77b | 4670 | else |
5eddb70b | 4671 | temp |= TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL; |
8db9d77b | 4672 | I915_WRITE(PCH_DPLL_SEL, temp); |
5eddb70b CW |
4673 | |
4674 | POSTING_READ(PCH_DPLL_SEL); | |
8db9d77b ZW |
4675 | udelay(150); |
4676 | } | |
4677 | ||
79e53945 JB |
4678 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
4679 | * This is an exception to the general rule that mode_set doesn't turn | |
4680 | * things on. | |
4681 | */ | |
4682 | if (is_lvds) { | |
5eddb70b | 4683 | reg = LVDS; |
bad720ff | 4684 | if (HAS_PCH_SPLIT(dev)) |
5eddb70b | 4685 | reg = PCH_LVDS; |
541998a1 | 4686 | |
5eddb70b CW |
4687 | temp = I915_READ(reg); |
4688 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; | |
b3b095b3 ZW |
4689 | if (pipe == 1) { |
4690 | if (HAS_PCH_CPT(dev)) | |
5eddb70b | 4691 | temp |= PORT_TRANS_B_SEL_CPT; |
b3b095b3 | 4692 | else |
5eddb70b | 4693 | temp |= LVDS_PIPEB_SELECT; |
b3b095b3 ZW |
4694 | } else { |
4695 | if (HAS_PCH_CPT(dev)) | |
5eddb70b | 4696 | temp &= ~PORT_TRANS_SEL_MASK; |
b3b095b3 | 4697 | else |
5eddb70b | 4698 | temp &= ~LVDS_PIPEB_SELECT; |
b3b095b3 | 4699 | } |
a3e17eb8 | 4700 | /* set the corresponsding LVDS_BORDER bit */ |
5eddb70b | 4701 | temp |= dev_priv->lvds_border_bits; |
79e53945 JB |
4702 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
4703 | * set the DPLLs for dual-channel mode or not. | |
4704 | */ | |
4705 | if (clock.p2 == 7) | |
5eddb70b | 4706 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
79e53945 | 4707 | else |
5eddb70b | 4708 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
79e53945 JB |
4709 | |
4710 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
4711 | * appropriately here, but we need to look more thoroughly into how | |
4712 | * panels behave in the two modes. | |
4713 | */ | |
434ed097 | 4714 | /* set the dithering flag on non-PCH LVDS as needed */ |
a6c45cf0 | 4715 | if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev)) { |
434ed097 | 4716 | if (dev_priv->lvds_dither) |
5eddb70b | 4717 | temp |= LVDS_ENABLE_DITHER; |
434ed097 | 4718 | else |
5eddb70b | 4719 | temp &= ~LVDS_ENABLE_DITHER; |
898822ce | 4720 | } |
5eddb70b | 4721 | I915_WRITE(reg, temp); |
79e53945 | 4722 | } |
434ed097 JB |
4723 | |
4724 | /* set the dithering flag and clear for anything other than a panel. */ | |
4725 | if (HAS_PCH_SPLIT(dev)) { | |
4726 | pipeconf &= ~PIPECONF_DITHER_EN; | |
4727 | pipeconf &= ~PIPECONF_DITHER_TYPE_MASK; | |
4728 | if (dev_priv->lvds_dither && (is_lvds || has_edp_encoder)) { | |
4729 | pipeconf |= PIPECONF_DITHER_EN; | |
4730 | pipeconf |= PIPECONF_DITHER_TYPE_ST1; | |
4731 | } | |
4732 | } | |
4733 | ||
5c5313c8 | 4734 | if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
a4fc5ed6 | 4735 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
5c5313c8 | 4736 | } else if (HAS_PCH_SPLIT(dev)) { |
8db9d77b ZW |
4737 | /* For non-DP output, clear any trans DP clock recovery setting.*/ |
4738 | if (pipe == 0) { | |
4739 | I915_WRITE(TRANSA_DATA_M1, 0); | |
4740 | I915_WRITE(TRANSA_DATA_N1, 0); | |
4741 | I915_WRITE(TRANSA_DP_LINK_M1, 0); | |
4742 | I915_WRITE(TRANSA_DP_LINK_N1, 0); | |
4743 | } else { | |
4744 | I915_WRITE(TRANSB_DATA_M1, 0); | |
4745 | I915_WRITE(TRANSB_DATA_N1, 0); | |
4746 | I915_WRITE(TRANSB_DP_LINK_M1, 0); | |
4747 | I915_WRITE(TRANSB_DP_LINK_N1, 0); | |
4748 | } | |
4749 | } | |
79e53945 | 4750 | |
5c5313c8 | 4751 | if (!has_edp_encoder || intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
79e53945 | 4752 | I915_WRITE(dpll_reg, dpll); |
5eddb70b | 4753 | |
32f9d658 | 4754 | /* Wait for the clocks to stabilize. */ |
5eddb70b | 4755 | POSTING_READ(dpll_reg); |
32f9d658 ZW |
4756 | udelay(150); |
4757 | ||
a6c45cf0 | 4758 | if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev)) { |
5eddb70b | 4759 | temp = 0; |
bb66c512 | 4760 | if (is_sdvo) { |
5eddb70b CW |
4761 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); |
4762 | if (temp > 1) | |
4763 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
6c9547ff | 4764 | else |
5eddb70b CW |
4765 | temp = 0; |
4766 | } | |
4767 | I915_WRITE(DPLL_MD(pipe), temp); | |
32f9d658 | 4768 | } else { |
a589b9f4 CW |
4769 | /* The pixel multiplier can only be updated once the |
4770 | * DPLL is enabled and the clocks are stable. | |
4771 | * | |
4772 | * So write it again. | |
4773 | */ | |
32f9d658 ZW |
4774 | I915_WRITE(dpll_reg, dpll); |
4775 | } | |
79e53945 | 4776 | } |
79e53945 | 4777 | |
5eddb70b | 4778 | intel_crtc->lowfreq_avail = false; |
652c393a JB |
4779 | if (is_lvds && has_reduced_clock && i915_powersave) { |
4780 | I915_WRITE(fp_reg + 4, fp2); | |
4781 | intel_crtc->lowfreq_avail = true; | |
4782 | if (HAS_PIPE_CXSR(dev)) { | |
28c97730 | 4783 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
652c393a JB |
4784 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
4785 | } | |
4786 | } else { | |
4787 | I915_WRITE(fp_reg + 4, fp); | |
652c393a | 4788 | if (HAS_PIPE_CXSR(dev)) { |
28c97730 | 4789 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
652c393a JB |
4790 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
4791 | } | |
4792 | } | |
4793 | ||
734b4157 KH |
4794 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
4795 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; | |
4796 | /* the chip adds 2 halflines automatically */ | |
4797 | adjusted_mode->crtc_vdisplay -= 1; | |
4798 | adjusted_mode->crtc_vtotal -= 1; | |
4799 | adjusted_mode->crtc_vblank_start -= 1; | |
4800 | adjusted_mode->crtc_vblank_end -= 1; | |
4801 | adjusted_mode->crtc_vsync_end -= 1; | |
4802 | adjusted_mode->crtc_vsync_start -= 1; | |
4803 | } else | |
4804 | pipeconf &= ~PIPECONF_INTERLACE_W_FIELD_INDICATION; /* progressive */ | |
4805 | ||
5eddb70b CW |
4806 | I915_WRITE(HTOTAL(pipe), |
4807 | (adjusted_mode->crtc_hdisplay - 1) | | |
79e53945 | 4808 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
5eddb70b CW |
4809 | I915_WRITE(HBLANK(pipe), |
4810 | (adjusted_mode->crtc_hblank_start - 1) | | |
79e53945 | 4811 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
5eddb70b CW |
4812 | I915_WRITE(HSYNC(pipe), |
4813 | (adjusted_mode->crtc_hsync_start - 1) | | |
79e53945 | 4814 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
5eddb70b CW |
4815 | |
4816 | I915_WRITE(VTOTAL(pipe), | |
4817 | (adjusted_mode->crtc_vdisplay - 1) | | |
79e53945 | 4818 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
5eddb70b CW |
4819 | I915_WRITE(VBLANK(pipe), |
4820 | (adjusted_mode->crtc_vblank_start - 1) | | |
79e53945 | 4821 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
5eddb70b CW |
4822 | I915_WRITE(VSYNC(pipe), |
4823 | (adjusted_mode->crtc_vsync_start - 1) | | |
79e53945 | 4824 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
5eddb70b CW |
4825 | |
4826 | /* pipesrc and dspsize control the size that is scaled from, | |
4827 | * which should always be the user's requested size. | |
79e53945 | 4828 | */ |
bad720ff | 4829 | if (!HAS_PCH_SPLIT(dev)) { |
5eddb70b CW |
4830 | I915_WRITE(DSPSIZE(plane), |
4831 | ((mode->vdisplay - 1) << 16) | | |
4832 | (mode->hdisplay - 1)); | |
4833 | I915_WRITE(DSPPOS(plane), 0); | |
2c07245f | 4834 | } |
5eddb70b CW |
4835 | I915_WRITE(PIPESRC(pipe), |
4836 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
2c07245f | 4837 | |
bad720ff | 4838 | if (HAS_PCH_SPLIT(dev)) { |
5eddb70b CW |
4839 | I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m); |
4840 | I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n); | |
4841 | I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m); | |
4842 | I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n); | |
2c07245f | 4843 | |
5c5313c8 | 4844 | if (has_edp_encoder && !intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
f2b115e6 | 4845 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
32f9d658 | 4846 | } |
2c07245f ZW |
4847 | } |
4848 | ||
5eddb70b CW |
4849 | I915_WRITE(PIPECONF(pipe), pipeconf); |
4850 | POSTING_READ(PIPECONF(pipe)); | |
b24e7179 | 4851 | if (!HAS_PCH_SPLIT(dev)) |
040484af | 4852 | intel_enable_pipe(dev_priv, pipe, false); |
79e53945 | 4853 | |
9d0498a2 | 4854 | intel_wait_for_vblank(dev, pipe); |
79e53945 | 4855 | |
f00a3ddf | 4856 | if (IS_GEN5(dev)) { |
553bd149 ZW |
4857 | /* enable address swizzle for tiling buffer */ |
4858 | temp = I915_READ(DISP_ARB_CTL); | |
4859 | I915_WRITE(DISP_ARB_CTL, temp | DISP_TILE_SURFACE_SWIZZLING); | |
4860 | } | |
4861 | ||
5eddb70b | 4862 | I915_WRITE(DSPCNTR(plane), dspcntr); |
b24e7179 JB |
4863 | POSTING_READ(DSPCNTR(plane)); |
4864 | if (!HAS_PCH_SPLIT(dev)) | |
4865 | intel_enable_plane(dev_priv, plane, pipe); | |
79e53945 | 4866 | |
5c3b82e2 | 4867 | ret = intel_pipe_set_base(crtc, x, y, old_fb); |
7662c8bd SL |
4868 | |
4869 | intel_update_watermarks(dev); | |
4870 | ||
79e53945 | 4871 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 4872 | |
1f803ee5 | 4873 | return ret; |
79e53945 JB |
4874 | } |
4875 | ||
4876 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ | |
4877 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
4878 | { | |
4879 | struct drm_device *dev = crtc->dev; | |
4880 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4881 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4882 | int palreg = (intel_crtc->pipe == 0) ? PALETTE_A : PALETTE_B; | |
4883 | int i; | |
4884 | ||
4885 | /* The clocks have to be on to load the palette. */ | |
4886 | if (!crtc->enabled) | |
4887 | return; | |
4888 | ||
f2b115e6 | 4889 | /* use legacy palette for Ironlake */ |
bad720ff | 4890 | if (HAS_PCH_SPLIT(dev)) |
2c07245f ZW |
4891 | palreg = (intel_crtc->pipe == 0) ? LGC_PALETTE_A : |
4892 | LGC_PALETTE_B; | |
4893 | ||
79e53945 JB |
4894 | for (i = 0; i < 256; i++) { |
4895 | I915_WRITE(palreg + 4 * i, | |
4896 | (intel_crtc->lut_r[i] << 16) | | |
4897 | (intel_crtc->lut_g[i] << 8) | | |
4898 | intel_crtc->lut_b[i]); | |
4899 | } | |
4900 | } | |
4901 | ||
560b85bb CW |
4902 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
4903 | { | |
4904 | struct drm_device *dev = crtc->dev; | |
4905 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4906 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4907 | bool visible = base != 0; | |
4908 | u32 cntl; | |
4909 | ||
4910 | if (intel_crtc->cursor_visible == visible) | |
4911 | return; | |
4912 | ||
4913 | cntl = I915_READ(CURACNTR); | |
4914 | if (visible) { | |
4915 | /* On these chipsets we can only modify the base whilst | |
4916 | * the cursor is disabled. | |
4917 | */ | |
4918 | I915_WRITE(CURABASE, base); | |
4919 | ||
4920 | cntl &= ~(CURSOR_FORMAT_MASK); | |
4921 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ | |
4922 | cntl |= CURSOR_ENABLE | | |
4923 | CURSOR_GAMMA_ENABLE | | |
4924 | CURSOR_FORMAT_ARGB; | |
4925 | } else | |
4926 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
4927 | I915_WRITE(CURACNTR, cntl); | |
4928 | ||
4929 | intel_crtc->cursor_visible = visible; | |
4930 | } | |
4931 | ||
4932 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) | |
4933 | { | |
4934 | struct drm_device *dev = crtc->dev; | |
4935 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4936 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4937 | int pipe = intel_crtc->pipe; | |
4938 | bool visible = base != 0; | |
4939 | ||
4940 | if (intel_crtc->cursor_visible != visible) { | |
4941 | uint32_t cntl = I915_READ(pipe == 0 ? CURACNTR : CURBCNTR); | |
4942 | if (base) { | |
4943 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
4944 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
4945 | cntl |= pipe << 28; /* Connect to correct pipe */ | |
4946 | } else { | |
4947 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
4948 | cntl |= CURSOR_MODE_DISABLE; | |
4949 | } | |
4950 | I915_WRITE(pipe == 0 ? CURACNTR : CURBCNTR, cntl); | |
4951 | ||
4952 | intel_crtc->cursor_visible = visible; | |
4953 | } | |
4954 | /* and commit changes on next vblank */ | |
4955 | I915_WRITE(pipe == 0 ? CURABASE : CURBBASE, base); | |
4956 | } | |
4957 | ||
cda4b7d3 | 4958 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
4959 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
4960 | bool on) | |
cda4b7d3 CW |
4961 | { |
4962 | struct drm_device *dev = crtc->dev; | |
4963 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4964 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4965 | int pipe = intel_crtc->pipe; | |
4966 | int x = intel_crtc->cursor_x; | |
4967 | int y = intel_crtc->cursor_y; | |
560b85bb | 4968 | u32 base, pos; |
cda4b7d3 CW |
4969 | bool visible; |
4970 | ||
4971 | pos = 0; | |
4972 | ||
6b383a7f | 4973 | if (on && crtc->enabled && crtc->fb) { |
cda4b7d3 CW |
4974 | base = intel_crtc->cursor_addr; |
4975 | if (x > (int) crtc->fb->width) | |
4976 | base = 0; | |
4977 | ||
4978 | if (y > (int) crtc->fb->height) | |
4979 | base = 0; | |
4980 | } else | |
4981 | base = 0; | |
4982 | ||
4983 | if (x < 0) { | |
4984 | if (x + intel_crtc->cursor_width < 0) | |
4985 | base = 0; | |
4986 | ||
4987 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
4988 | x = -x; | |
4989 | } | |
4990 | pos |= x << CURSOR_X_SHIFT; | |
4991 | ||
4992 | if (y < 0) { | |
4993 | if (y + intel_crtc->cursor_height < 0) | |
4994 | base = 0; | |
4995 | ||
4996 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
4997 | y = -y; | |
4998 | } | |
4999 | pos |= y << CURSOR_Y_SHIFT; | |
5000 | ||
5001 | visible = base != 0; | |
560b85bb | 5002 | if (!visible && !intel_crtc->cursor_visible) |
cda4b7d3 CW |
5003 | return; |
5004 | ||
5005 | I915_WRITE(pipe == 0 ? CURAPOS : CURBPOS, pos); | |
560b85bb CW |
5006 | if (IS_845G(dev) || IS_I865G(dev)) |
5007 | i845_update_cursor(crtc, base); | |
5008 | else | |
5009 | i9xx_update_cursor(crtc, base); | |
cda4b7d3 CW |
5010 | |
5011 | if (visible) | |
5012 | intel_mark_busy(dev, to_intel_framebuffer(crtc->fb)->obj); | |
5013 | } | |
5014 | ||
79e53945 | 5015 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
05394f39 | 5016 | struct drm_file *file, |
79e53945 JB |
5017 | uint32_t handle, |
5018 | uint32_t width, uint32_t height) | |
5019 | { | |
5020 | struct drm_device *dev = crtc->dev; | |
5021 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5022 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
05394f39 | 5023 | struct drm_i915_gem_object *obj; |
cda4b7d3 | 5024 | uint32_t addr; |
3f8bc370 | 5025 | int ret; |
79e53945 | 5026 | |
28c97730 | 5027 | DRM_DEBUG_KMS("\n"); |
79e53945 JB |
5028 | |
5029 | /* if we want to turn off the cursor ignore width and height */ | |
5030 | if (!handle) { | |
28c97730 | 5031 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 | 5032 | addr = 0; |
05394f39 | 5033 | obj = NULL; |
5004417d | 5034 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 5035 | goto finish; |
79e53945 JB |
5036 | } |
5037 | ||
5038 | /* Currently we only support 64x64 cursors */ | |
5039 | if (width != 64 || height != 64) { | |
5040 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
5041 | return -EINVAL; | |
5042 | } | |
5043 | ||
05394f39 CW |
5044 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
5045 | if (!obj) | |
79e53945 JB |
5046 | return -ENOENT; |
5047 | ||
05394f39 | 5048 | if (obj->base.size < width * height * 4) { |
79e53945 | 5049 | DRM_ERROR("buffer is to small\n"); |
34b8686e DA |
5050 | ret = -ENOMEM; |
5051 | goto fail; | |
79e53945 JB |
5052 | } |
5053 | ||
71acb5eb | 5054 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 5055 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 5056 | if (!dev_priv->info->cursor_needs_physical) { |
d9e86c0e CW |
5057 | if (obj->tiling_mode) { |
5058 | DRM_ERROR("cursor cannot be tiled\n"); | |
5059 | ret = -EINVAL; | |
5060 | goto fail_locked; | |
5061 | } | |
5062 | ||
05394f39 | 5063 | ret = i915_gem_object_pin(obj, PAGE_SIZE, true); |
71acb5eb DA |
5064 | if (ret) { |
5065 | DRM_ERROR("failed to pin cursor bo\n"); | |
7f9872e0 | 5066 | goto fail_locked; |
71acb5eb | 5067 | } |
e7b526bb | 5068 | |
05394f39 | 5069 | ret = i915_gem_object_set_to_gtt_domain(obj, 0); |
e7b526bb CW |
5070 | if (ret) { |
5071 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
5072 | goto fail_unpin; | |
5073 | } | |
5074 | ||
d9e86c0e CW |
5075 | ret = i915_gem_object_put_fence(obj); |
5076 | if (ret) { | |
5077 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
5078 | goto fail_unpin; | |
5079 | } | |
5080 | ||
05394f39 | 5081 | addr = obj->gtt_offset; |
71acb5eb | 5082 | } else { |
6eeefaf3 | 5083 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
05394f39 | 5084 | ret = i915_gem_attach_phys_object(dev, obj, |
6eeefaf3 CW |
5085 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
5086 | align); | |
71acb5eb DA |
5087 | if (ret) { |
5088 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 5089 | goto fail_locked; |
71acb5eb | 5090 | } |
05394f39 | 5091 | addr = obj->phys_obj->handle->busaddr; |
3f8bc370 KH |
5092 | } |
5093 | ||
a6c45cf0 | 5094 | if (IS_GEN2(dev)) |
14b60391 JB |
5095 | I915_WRITE(CURSIZE, (height << 12) | width); |
5096 | ||
3f8bc370 | 5097 | finish: |
3f8bc370 | 5098 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 5099 | if (dev_priv->info->cursor_needs_physical) { |
05394f39 | 5100 | if (intel_crtc->cursor_bo != obj) |
71acb5eb DA |
5101 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
5102 | } else | |
5103 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
05394f39 | 5104 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
3f8bc370 | 5105 | } |
80824003 | 5106 | |
7f9872e0 | 5107 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
5108 | |
5109 | intel_crtc->cursor_addr = addr; | |
05394f39 | 5110 | intel_crtc->cursor_bo = obj; |
cda4b7d3 CW |
5111 | intel_crtc->cursor_width = width; |
5112 | intel_crtc->cursor_height = height; | |
5113 | ||
6b383a7f | 5114 | intel_crtc_update_cursor(crtc, true); |
3f8bc370 | 5115 | |
79e53945 | 5116 | return 0; |
e7b526bb | 5117 | fail_unpin: |
05394f39 | 5118 | i915_gem_object_unpin(obj); |
7f9872e0 | 5119 | fail_locked: |
34b8686e | 5120 | mutex_unlock(&dev->struct_mutex); |
bc9025bd | 5121 | fail: |
05394f39 | 5122 | drm_gem_object_unreference_unlocked(&obj->base); |
34b8686e | 5123 | return ret; |
79e53945 JB |
5124 | } |
5125 | ||
5126 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
5127 | { | |
79e53945 | 5128 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 5129 | |
cda4b7d3 CW |
5130 | intel_crtc->cursor_x = x; |
5131 | intel_crtc->cursor_y = y; | |
652c393a | 5132 | |
6b383a7f | 5133 | intel_crtc_update_cursor(crtc, true); |
79e53945 JB |
5134 | |
5135 | return 0; | |
5136 | } | |
5137 | ||
5138 | /** Sets the color ramps on behalf of RandR */ | |
5139 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
5140 | u16 blue, int regno) | |
5141 | { | |
5142 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5143 | ||
5144 | intel_crtc->lut_r[regno] = red >> 8; | |
5145 | intel_crtc->lut_g[regno] = green >> 8; | |
5146 | intel_crtc->lut_b[regno] = blue >> 8; | |
5147 | } | |
5148 | ||
b8c00ac5 DA |
5149 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
5150 | u16 *blue, int regno) | |
5151 | { | |
5152 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5153 | ||
5154 | *red = intel_crtc->lut_r[regno] << 8; | |
5155 | *green = intel_crtc->lut_g[regno] << 8; | |
5156 | *blue = intel_crtc->lut_b[regno] << 8; | |
5157 | } | |
5158 | ||
79e53945 | 5159 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 5160 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 5161 | { |
7203425a | 5162 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 5163 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 5164 | |
7203425a | 5165 | for (i = start; i < end; i++) { |
79e53945 JB |
5166 | intel_crtc->lut_r[i] = red[i] >> 8; |
5167 | intel_crtc->lut_g[i] = green[i] >> 8; | |
5168 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
5169 | } | |
5170 | ||
5171 | intel_crtc_load_lut(crtc); | |
5172 | } | |
5173 | ||
5174 | /** | |
5175 | * Get a pipe with a simple mode set on it for doing load-based monitor | |
5176 | * detection. | |
5177 | * | |
5178 | * It will be up to the load-detect code to adjust the pipe as appropriate for | |
c751ce4f | 5179 | * its requirements. The pipe will be connected to no other encoders. |
79e53945 | 5180 | * |
c751ce4f | 5181 | * Currently this code will only succeed if there is a pipe with no encoders |
79e53945 JB |
5182 | * configured for it. In the future, it could choose to temporarily disable |
5183 | * some outputs to free up a pipe for its use. | |
5184 | * | |
5185 | * \return crtc, or NULL if no pipes are available. | |
5186 | */ | |
5187 | ||
5188 | /* VESA 640x480x72Hz mode to set on the pipe */ | |
5189 | static struct drm_display_mode load_detect_mode = { | |
5190 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
5191 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
5192 | }; | |
5193 | ||
21d40d37 | 5194 | struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, |
c1c43977 | 5195 | struct drm_connector *connector, |
79e53945 JB |
5196 | struct drm_display_mode *mode, |
5197 | int *dpms_mode) | |
5198 | { | |
5199 | struct intel_crtc *intel_crtc; | |
5200 | struct drm_crtc *possible_crtc; | |
5201 | struct drm_crtc *supported_crtc =NULL; | |
4ef69c7a | 5202 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
5203 | struct drm_crtc *crtc = NULL; |
5204 | struct drm_device *dev = encoder->dev; | |
5205 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
5206 | struct drm_crtc_helper_funcs *crtc_funcs; | |
5207 | int i = -1; | |
5208 | ||
5209 | /* | |
5210 | * Algorithm gets a little messy: | |
5211 | * - if the connector already has an assigned crtc, use it (but make | |
5212 | * sure it's on first) | |
5213 | * - try to find the first unused crtc that can drive this connector, | |
5214 | * and use that if we find one | |
5215 | * - if there are no unused crtcs available, try to use the first | |
5216 | * one we found that supports the connector | |
5217 | */ | |
5218 | ||
5219 | /* See if we already have a CRTC for this connector */ | |
5220 | if (encoder->crtc) { | |
5221 | crtc = encoder->crtc; | |
5222 | /* Make sure the crtc and connector are running */ | |
5223 | intel_crtc = to_intel_crtc(crtc); | |
5224 | *dpms_mode = intel_crtc->dpms_mode; | |
5225 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { | |
5226 | crtc_funcs = crtc->helper_private; | |
5227 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
5228 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
5229 | } | |
5230 | return crtc; | |
5231 | } | |
5232 | ||
5233 | /* Find an unused one (if possible) */ | |
5234 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
5235 | i++; | |
5236 | if (!(encoder->possible_crtcs & (1 << i))) | |
5237 | continue; | |
5238 | if (!possible_crtc->enabled) { | |
5239 | crtc = possible_crtc; | |
5240 | break; | |
5241 | } | |
5242 | if (!supported_crtc) | |
5243 | supported_crtc = possible_crtc; | |
5244 | } | |
5245 | ||
5246 | /* | |
5247 | * If we didn't find an unused CRTC, don't use any. | |
5248 | */ | |
5249 | if (!crtc) { | |
5250 | return NULL; | |
5251 | } | |
5252 | ||
5253 | encoder->crtc = crtc; | |
c1c43977 | 5254 | connector->encoder = encoder; |
21d40d37 | 5255 | intel_encoder->load_detect_temp = true; |
79e53945 JB |
5256 | |
5257 | intel_crtc = to_intel_crtc(crtc); | |
5258 | *dpms_mode = intel_crtc->dpms_mode; | |
5259 | ||
5260 | if (!crtc->enabled) { | |
5261 | if (!mode) | |
5262 | mode = &load_detect_mode; | |
3c4fdcfb | 5263 | drm_crtc_helper_set_mode(crtc, mode, 0, 0, crtc->fb); |
79e53945 JB |
5264 | } else { |
5265 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { | |
5266 | crtc_funcs = crtc->helper_private; | |
5267 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
5268 | } | |
5269 | ||
5270 | /* Add this connector to the crtc */ | |
5271 | encoder_funcs->mode_set(encoder, &crtc->mode, &crtc->mode); | |
5272 | encoder_funcs->commit(encoder); | |
5273 | } | |
5274 | /* let the connector get through one full cycle before testing */ | |
9d0498a2 | 5275 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
79e53945 JB |
5276 | |
5277 | return crtc; | |
5278 | } | |
5279 | ||
c1c43977 ZW |
5280 | void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder, |
5281 | struct drm_connector *connector, int dpms_mode) | |
79e53945 | 5282 | { |
4ef69c7a | 5283 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
5284 | struct drm_device *dev = encoder->dev; |
5285 | struct drm_crtc *crtc = encoder->crtc; | |
5286 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
5287 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
5288 | ||
21d40d37 | 5289 | if (intel_encoder->load_detect_temp) { |
79e53945 | 5290 | encoder->crtc = NULL; |
c1c43977 | 5291 | connector->encoder = NULL; |
21d40d37 | 5292 | intel_encoder->load_detect_temp = false; |
79e53945 JB |
5293 | crtc->enabled = drm_helper_crtc_in_use(crtc); |
5294 | drm_helper_disable_unused_functions(dev); | |
5295 | } | |
5296 | ||
c751ce4f | 5297 | /* Switch crtc and encoder back off if necessary */ |
79e53945 JB |
5298 | if (crtc->enabled && dpms_mode != DRM_MODE_DPMS_ON) { |
5299 | if (encoder->crtc == crtc) | |
5300 | encoder_funcs->dpms(encoder, dpms_mode); | |
5301 | crtc_funcs->dpms(crtc, dpms_mode); | |
5302 | } | |
5303 | } | |
5304 | ||
5305 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
5306 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
5307 | { | |
5308 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5309 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5310 | int pipe = intel_crtc->pipe; | |
5311 | u32 dpll = I915_READ((pipe == 0) ? DPLL_A : DPLL_B); | |
5312 | u32 fp; | |
5313 | intel_clock_t clock; | |
5314 | ||
5315 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
5316 | fp = I915_READ((pipe == 0) ? FPA0 : FPB0); | |
5317 | else | |
5318 | fp = I915_READ((pipe == 0) ? FPA1 : FPB1); | |
5319 | ||
5320 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
5321 | if (IS_PINEVIEW(dev)) { |
5322 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
5323 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
5324 | } else { |
5325 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
5326 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
5327 | } | |
5328 | ||
a6c45cf0 | 5329 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
5330 | if (IS_PINEVIEW(dev)) |
5331 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
5332 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
5333 | else |
5334 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
5335 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
5336 | ||
5337 | switch (dpll & DPLL_MODE_MASK) { | |
5338 | case DPLLB_MODE_DAC_SERIAL: | |
5339 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
5340 | 5 : 10; | |
5341 | break; | |
5342 | case DPLLB_MODE_LVDS: | |
5343 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
5344 | 7 : 14; | |
5345 | break; | |
5346 | default: | |
28c97730 | 5347 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
5348 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
5349 | return 0; | |
5350 | } | |
5351 | ||
5352 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 5353 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
5354 | } else { |
5355 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
5356 | ||
5357 | if (is_lvds) { | |
5358 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
5359 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
5360 | clock.p2 = 14; | |
5361 | ||
5362 | if ((dpll & PLL_REF_INPUT_MASK) == | |
5363 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
5364 | /* XXX: might not be 66MHz */ | |
2177832f | 5365 | intel_clock(dev, 66000, &clock); |
79e53945 | 5366 | } else |
2177832f | 5367 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
5368 | } else { |
5369 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
5370 | clock.p1 = 2; | |
5371 | else { | |
5372 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
5373 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
5374 | } | |
5375 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
5376 | clock.p2 = 4; | |
5377 | else | |
5378 | clock.p2 = 2; | |
5379 | ||
2177832f | 5380 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
5381 | } |
5382 | } | |
5383 | ||
5384 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
5385 | * i830PllIsValid() because it relies on the xf86_config connector | |
5386 | * configuration being accurate, which it isn't necessarily. | |
5387 | */ | |
5388 | ||
5389 | return clock.dot; | |
5390 | } | |
5391 | ||
5392 | /** Returns the currently programmed mode of the given pipe. */ | |
5393 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
5394 | struct drm_crtc *crtc) | |
5395 | { | |
5396 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5397 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5398 | int pipe = intel_crtc->pipe; | |
5399 | struct drm_display_mode *mode; | |
5400 | int htot = I915_READ((pipe == 0) ? HTOTAL_A : HTOTAL_B); | |
5401 | int hsync = I915_READ((pipe == 0) ? HSYNC_A : HSYNC_B); | |
5402 | int vtot = I915_READ((pipe == 0) ? VTOTAL_A : VTOTAL_B); | |
5403 | int vsync = I915_READ((pipe == 0) ? VSYNC_A : VSYNC_B); | |
5404 | ||
5405 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
5406 | if (!mode) | |
5407 | return NULL; | |
5408 | ||
5409 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
5410 | mode->hdisplay = (htot & 0xffff) + 1; | |
5411 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
5412 | mode->hsync_start = (hsync & 0xffff) + 1; | |
5413 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
5414 | mode->vdisplay = (vtot & 0xffff) + 1; | |
5415 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
5416 | mode->vsync_start = (vsync & 0xffff) + 1; | |
5417 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
5418 | ||
5419 | drm_mode_set_name(mode); | |
5420 | drm_mode_set_crtcinfo(mode, 0); | |
5421 | ||
5422 | return mode; | |
5423 | } | |
5424 | ||
652c393a JB |
5425 | #define GPU_IDLE_TIMEOUT 500 /* ms */ |
5426 | ||
5427 | /* When this timer fires, we've been idle for awhile */ | |
5428 | static void intel_gpu_idle_timer(unsigned long arg) | |
5429 | { | |
5430 | struct drm_device *dev = (struct drm_device *)arg; | |
5431 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5432 | ||
ff7ea4c0 CW |
5433 | if (!list_empty(&dev_priv->mm.active_list)) { |
5434 | /* Still processing requests, so just re-arm the timer. */ | |
5435 | mod_timer(&dev_priv->idle_timer, jiffies + | |
5436 | msecs_to_jiffies(GPU_IDLE_TIMEOUT)); | |
5437 | return; | |
5438 | } | |
652c393a | 5439 | |
ff7ea4c0 | 5440 | dev_priv->busy = false; |
01dfba93 | 5441 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
652c393a JB |
5442 | } |
5443 | ||
652c393a JB |
5444 | #define CRTC_IDLE_TIMEOUT 1000 /* ms */ |
5445 | ||
5446 | static void intel_crtc_idle_timer(unsigned long arg) | |
5447 | { | |
5448 | struct intel_crtc *intel_crtc = (struct intel_crtc *)arg; | |
5449 | struct drm_crtc *crtc = &intel_crtc->base; | |
5450 | drm_i915_private_t *dev_priv = crtc->dev->dev_private; | |
ff7ea4c0 | 5451 | struct intel_framebuffer *intel_fb; |
652c393a | 5452 | |
ff7ea4c0 CW |
5453 | intel_fb = to_intel_framebuffer(crtc->fb); |
5454 | if (intel_fb && intel_fb->obj->active) { | |
5455 | /* The framebuffer is still being accessed by the GPU. */ | |
5456 | mod_timer(&intel_crtc->idle_timer, jiffies + | |
5457 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
5458 | return; | |
5459 | } | |
652c393a | 5460 | |
ff7ea4c0 | 5461 | intel_crtc->busy = false; |
01dfba93 | 5462 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
652c393a JB |
5463 | } |
5464 | ||
3dec0095 | 5465 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
652c393a JB |
5466 | { |
5467 | struct drm_device *dev = crtc->dev; | |
5468 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5469 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5470 | int pipe = intel_crtc->pipe; | |
dbdc6479 JB |
5471 | int dpll_reg = DPLL(pipe); |
5472 | int dpll; | |
652c393a | 5473 | |
bad720ff | 5474 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
5475 | return; |
5476 | ||
5477 | if (!dev_priv->lvds_downclock_avail) | |
5478 | return; | |
5479 | ||
dbdc6479 | 5480 | dpll = I915_READ(dpll_reg); |
652c393a | 5481 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
44d98a61 | 5482 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a JB |
5483 | |
5484 | /* Unlock panel regs */ | |
dbdc6479 JB |
5485 | I915_WRITE(PP_CONTROL, |
5486 | I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS); | |
652c393a JB |
5487 | |
5488 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
5489 | I915_WRITE(dpll_reg, dpll); | |
dbdc6479 | 5490 | POSTING_READ(dpll_reg); |
9d0498a2 | 5491 | intel_wait_for_vblank(dev, pipe); |
dbdc6479 | 5492 | |
652c393a JB |
5493 | dpll = I915_READ(dpll_reg); |
5494 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 5495 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a JB |
5496 | |
5497 | /* ...and lock them again */ | |
5498 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); | |
5499 | } | |
5500 | ||
5501 | /* Schedule downclock */ | |
3dec0095 DV |
5502 | mod_timer(&intel_crtc->idle_timer, jiffies + |
5503 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
652c393a JB |
5504 | } |
5505 | ||
5506 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
5507 | { | |
5508 | struct drm_device *dev = crtc->dev; | |
5509 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5510 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5511 | int pipe = intel_crtc->pipe; | |
5512 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; | |
5513 | int dpll = I915_READ(dpll_reg); | |
5514 | ||
bad720ff | 5515 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
5516 | return; |
5517 | ||
5518 | if (!dev_priv->lvds_downclock_avail) | |
5519 | return; | |
5520 | ||
5521 | /* | |
5522 | * Since this is called by a timer, we should never get here in | |
5523 | * the manual case. | |
5524 | */ | |
5525 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
44d98a61 | 5526 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a JB |
5527 | |
5528 | /* Unlock panel regs */ | |
4a655f04 JB |
5529 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | |
5530 | PANEL_UNLOCK_REGS); | |
652c393a JB |
5531 | |
5532 | dpll |= DISPLAY_RATE_SELECT_FPA1; | |
5533 | I915_WRITE(dpll_reg, dpll); | |
5534 | dpll = I915_READ(dpll_reg); | |
9d0498a2 | 5535 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
5536 | dpll = I915_READ(dpll_reg); |
5537 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 5538 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
5539 | |
5540 | /* ...and lock them again */ | |
5541 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); | |
5542 | } | |
5543 | ||
5544 | } | |
5545 | ||
5546 | /** | |
5547 | * intel_idle_update - adjust clocks for idleness | |
5548 | * @work: work struct | |
5549 | * | |
5550 | * Either the GPU or display (or both) went idle. Check the busy status | |
5551 | * here and adjust the CRTC and GPU clocks as necessary. | |
5552 | */ | |
5553 | static void intel_idle_update(struct work_struct *work) | |
5554 | { | |
5555 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, | |
5556 | idle_work); | |
5557 | struct drm_device *dev = dev_priv->dev; | |
5558 | struct drm_crtc *crtc; | |
5559 | struct intel_crtc *intel_crtc; | |
45ac22c8 | 5560 | int enabled = 0; |
652c393a JB |
5561 | |
5562 | if (!i915_powersave) | |
5563 | return; | |
5564 | ||
5565 | mutex_lock(&dev->struct_mutex); | |
5566 | ||
7648fa99 JB |
5567 | i915_update_gfx_val(dev_priv); |
5568 | ||
652c393a JB |
5569 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
5570 | /* Skip inactive CRTCs */ | |
5571 | if (!crtc->fb) | |
5572 | continue; | |
5573 | ||
45ac22c8 | 5574 | enabled++; |
652c393a JB |
5575 | intel_crtc = to_intel_crtc(crtc); |
5576 | if (!intel_crtc->busy) | |
5577 | intel_decrease_pllclock(crtc); | |
5578 | } | |
5579 | ||
45ac22c8 LP |
5580 | if ((enabled == 1) && (IS_I945G(dev) || IS_I945GM(dev))) { |
5581 | DRM_DEBUG_DRIVER("enable memory self refresh on 945\n"); | |
5582 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN); | |
5583 | } | |
5584 | ||
652c393a JB |
5585 | mutex_unlock(&dev->struct_mutex); |
5586 | } | |
5587 | ||
5588 | /** | |
5589 | * intel_mark_busy - mark the GPU and possibly the display busy | |
5590 | * @dev: drm device | |
5591 | * @obj: object we're operating on | |
5592 | * | |
5593 | * Callers can use this function to indicate that the GPU is busy processing | |
5594 | * commands. If @obj matches one of the CRTC objects (i.e. it's a scanout | |
5595 | * buffer), we'll also mark the display as busy, so we know to increase its | |
5596 | * clock frequency. | |
5597 | */ | |
05394f39 | 5598 | void intel_mark_busy(struct drm_device *dev, struct drm_i915_gem_object *obj) |
652c393a JB |
5599 | { |
5600 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5601 | struct drm_crtc *crtc = NULL; | |
5602 | struct intel_framebuffer *intel_fb; | |
5603 | struct intel_crtc *intel_crtc; | |
5604 | ||
5e17ee74 ZW |
5605 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5606 | return; | |
5607 | ||
060e645a LP |
5608 | if (!dev_priv->busy) { |
5609 | if (IS_I945G(dev) || IS_I945GM(dev)) { | |
5610 | u32 fw_blc_self; | |
ee980b80 | 5611 | |
060e645a LP |
5612 | DRM_DEBUG_DRIVER("disable memory self refresh on 945\n"); |
5613 | fw_blc_self = I915_READ(FW_BLC_SELF); | |
5614 | fw_blc_self &= ~FW_BLC_SELF_EN; | |
5615 | I915_WRITE(FW_BLC_SELF, fw_blc_self | FW_BLC_SELF_EN_MASK); | |
5616 | } | |
28cf798f | 5617 | dev_priv->busy = true; |
060e645a | 5618 | } else |
28cf798f CW |
5619 | mod_timer(&dev_priv->idle_timer, jiffies + |
5620 | msecs_to_jiffies(GPU_IDLE_TIMEOUT)); | |
652c393a JB |
5621 | |
5622 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
5623 | if (!crtc->fb) | |
5624 | continue; | |
5625 | ||
5626 | intel_crtc = to_intel_crtc(crtc); | |
5627 | intel_fb = to_intel_framebuffer(crtc->fb); | |
5628 | if (intel_fb->obj == obj) { | |
5629 | if (!intel_crtc->busy) { | |
060e645a LP |
5630 | if (IS_I945G(dev) || IS_I945GM(dev)) { |
5631 | u32 fw_blc_self; | |
5632 | ||
5633 | DRM_DEBUG_DRIVER("disable memory self refresh on 945\n"); | |
5634 | fw_blc_self = I915_READ(FW_BLC_SELF); | |
5635 | fw_blc_self &= ~FW_BLC_SELF_EN; | |
5636 | I915_WRITE(FW_BLC_SELF, fw_blc_self | FW_BLC_SELF_EN_MASK); | |
5637 | } | |
652c393a | 5638 | /* Non-busy -> busy, upclock */ |
3dec0095 | 5639 | intel_increase_pllclock(crtc); |
652c393a JB |
5640 | intel_crtc->busy = true; |
5641 | } else { | |
5642 | /* Busy -> busy, put off timer */ | |
5643 | mod_timer(&intel_crtc->idle_timer, jiffies + | |
5644 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
5645 | } | |
5646 | } | |
5647 | } | |
5648 | } | |
5649 | ||
79e53945 JB |
5650 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
5651 | { | |
5652 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
5653 | struct drm_device *dev = crtc->dev; |
5654 | struct intel_unpin_work *work; | |
5655 | unsigned long flags; | |
5656 | ||
5657 | spin_lock_irqsave(&dev->event_lock, flags); | |
5658 | work = intel_crtc->unpin_work; | |
5659 | intel_crtc->unpin_work = NULL; | |
5660 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
5661 | ||
5662 | if (work) { | |
5663 | cancel_work_sync(&work->work); | |
5664 | kfree(work); | |
5665 | } | |
79e53945 JB |
5666 | |
5667 | drm_crtc_cleanup(crtc); | |
67e77c5a | 5668 | |
79e53945 JB |
5669 | kfree(intel_crtc); |
5670 | } | |
5671 | ||
6b95a207 KH |
5672 | static void intel_unpin_work_fn(struct work_struct *__work) |
5673 | { | |
5674 | struct intel_unpin_work *work = | |
5675 | container_of(__work, struct intel_unpin_work, work); | |
5676 | ||
5677 | mutex_lock(&work->dev->struct_mutex); | |
b1b87f6b | 5678 | i915_gem_object_unpin(work->old_fb_obj); |
05394f39 CW |
5679 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
5680 | drm_gem_object_unreference(&work->old_fb_obj->base); | |
d9e86c0e | 5681 | |
6b95a207 KH |
5682 | mutex_unlock(&work->dev->struct_mutex); |
5683 | kfree(work); | |
5684 | } | |
5685 | ||
1afe3e9d | 5686 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 5687 | struct drm_crtc *crtc) |
6b95a207 KH |
5688 | { |
5689 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6b95a207 KH |
5690 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5691 | struct intel_unpin_work *work; | |
05394f39 | 5692 | struct drm_i915_gem_object *obj; |
6b95a207 | 5693 | struct drm_pending_vblank_event *e; |
49b14a5c | 5694 | struct timeval tnow, tvbl; |
6b95a207 KH |
5695 | unsigned long flags; |
5696 | ||
5697 | /* Ignore early vblank irqs */ | |
5698 | if (intel_crtc == NULL) | |
5699 | return; | |
5700 | ||
49b14a5c MK |
5701 | do_gettimeofday(&tnow); |
5702 | ||
6b95a207 KH |
5703 | spin_lock_irqsave(&dev->event_lock, flags); |
5704 | work = intel_crtc->unpin_work; | |
5705 | if (work == NULL || !work->pending) { | |
5706 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
5707 | return; | |
5708 | } | |
5709 | ||
5710 | intel_crtc->unpin_work = NULL; | |
6b95a207 KH |
5711 | |
5712 | if (work->event) { | |
5713 | e = work->event; | |
49b14a5c | 5714 | e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl); |
0af7e4df MK |
5715 | |
5716 | /* Called before vblank count and timestamps have | |
5717 | * been updated for the vblank interval of flip | |
5718 | * completion? Need to increment vblank count and | |
5719 | * add one videorefresh duration to returned timestamp | |
49b14a5c MK |
5720 | * to account for this. We assume this happened if we |
5721 | * get called over 0.9 frame durations after the last | |
5722 | * timestamped vblank. | |
5723 | * | |
5724 | * This calculation can not be used with vrefresh rates | |
5725 | * below 5Hz (10Hz to be on the safe side) without | |
5726 | * promoting to 64 integers. | |
0af7e4df | 5727 | */ |
49b14a5c MK |
5728 | if (10 * (timeval_to_ns(&tnow) - timeval_to_ns(&tvbl)) > |
5729 | 9 * crtc->framedur_ns) { | |
0af7e4df | 5730 | e->event.sequence++; |
49b14a5c MK |
5731 | tvbl = ns_to_timeval(timeval_to_ns(&tvbl) + |
5732 | crtc->framedur_ns); | |
0af7e4df MK |
5733 | } |
5734 | ||
49b14a5c MK |
5735 | e->event.tv_sec = tvbl.tv_sec; |
5736 | e->event.tv_usec = tvbl.tv_usec; | |
0af7e4df | 5737 | |
6b95a207 KH |
5738 | list_add_tail(&e->base.link, |
5739 | &e->base.file_priv->event_list); | |
5740 | wake_up_interruptible(&e->base.file_priv->event_wait); | |
5741 | } | |
5742 | ||
0af7e4df MK |
5743 | drm_vblank_put(dev, intel_crtc->pipe); |
5744 | ||
6b95a207 KH |
5745 | spin_unlock_irqrestore(&dev->event_lock, flags); |
5746 | ||
05394f39 | 5747 | obj = work->old_fb_obj; |
d9e86c0e | 5748 | |
e59f2bac | 5749 | atomic_clear_mask(1 << intel_crtc->plane, |
05394f39 CW |
5750 | &obj->pending_flip.counter); |
5751 | if (atomic_read(&obj->pending_flip) == 0) | |
f787a5f5 | 5752 | wake_up(&dev_priv->pending_flip_queue); |
d9e86c0e | 5753 | |
6b95a207 | 5754 | schedule_work(&work->work); |
e5510fac JB |
5755 | |
5756 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); | |
6b95a207 KH |
5757 | } |
5758 | ||
1afe3e9d JB |
5759 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
5760 | { | |
5761 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5762 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
5763 | ||
49b14a5c | 5764 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
5765 | } |
5766 | ||
5767 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
5768 | { | |
5769 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5770 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; | |
5771 | ||
49b14a5c | 5772 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
5773 | } |
5774 | ||
6b95a207 KH |
5775 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
5776 | { | |
5777 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5778 | struct intel_crtc *intel_crtc = | |
5779 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
5780 | unsigned long flags; | |
5781 | ||
5782 | spin_lock_irqsave(&dev->event_lock, flags); | |
de3f440f | 5783 | if (intel_crtc->unpin_work) { |
4e5359cd SF |
5784 | if ((++intel_crtc->unpin_work->pending) > 1) |
5785 | DRM_ERROR("Prepared flip multiple times\n"); | |
de3f440f JB |
5786 | } else { |
5787 | DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n"); | |
5788 | } | |
6b95a207 KH |
5789 | spin_unlock_irqrestore(&dev->event_lock, flags); |
5790 | } | |
5791 | ||
5792 | static int intel_crtc_page_flip(struct drm_crtc *crtc, | |
5793 | struct drm_framebuffer *fb, | |
5794 | struct drm_pending_vblank_event *event) | |
5795 | { | |
5796 | struct drm_device *dev = crtc->dev; | |
5797 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5798 | struct intel_framebuffer *intel_fb; | |
05394f39 | 5799 | struct drm_i915_gem_object *obj; |
6b95a207 KH |
5800 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5801 | struct intel_unpin_work *work; | |
be9a3dbf | 5802 | unsigned long flags, offset; |
52e68630 | 5803 | int pipe = intel_crtc->pipe; |
20f0cd55 | 5804 | u32 pf, pipesrc; |
52e68630 | 5805 | int ret; |
6b95a207 KH |
5806 | |
5807 | work = kzalloc(sizeof *work, GFP_KERNEL); | |
5808 | if (work == NULL) | |
5809 | return -ENOMEM; | |
5810 | ||
6b95a207 KH |
5811 | work->event = event; |
5812 | work->dev = crtc->dev; | |
5813 | intel_fb = to_intel_framebuffer(crtc->fb); | |
b1b87f6b | 5814 | work->old_fb_obj = intel_fb->obj; |
6b95a207 KH |
5815 | INIT_WORK(&work->work, intel_unpin_work_fn); |
5816 | ||
5817 | /* We borrow the event spin lock for protecting unpin_work */ | |
5818 | spin_lock_irqsave(&dev->event_lock, flags); | |
5819 | if (intel_crtc->unpin_work) { | |
5820 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
5821 | kfree(work); | |
468f0b44 CW |
5822 | |
5823 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
6b95a207 KH |
5824 | return -EBUSY; |
5825 | } | |
5826 | intel_crtc->unpin_work = work; | |
5827 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
5828 | ||
5829 | intel_fb = to_intel_framebuffer(fb); | |
5830 | obj = intel_fb->obj; | |
5831 | ||
468f0b44 | 5832 | mutex_lock(&dev->struct_mutex); |
1ec14ad3 | 5833 | ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv)); |
96b099fd CW |
5834 | if (ret) |
5835 | goto cleanup_work; | |
6b95a207 | 5836 | |
75dfca80 | 5837 | /* Reference the objects for the scheduled work. */ |
05394f39 CW |
5838 | drm_gem_object_reference(&work->old_fb_obj->base); |
5839 | drm_gem_object_reference(&obj->base); | |
6b95a207 KH |
5840 | |
5841 | crtc->fb = fb; | |
96b099fd CW |
5842 | |
5843 | ret = drm_vblank_get(dev, intel_crtc->pipe); | |
5844 | if (ret) | |
5845 | goto cleanup_objs; | |
5846 | ||
c7f9f9a8 CW |
5847 | if (IS_GEN3(dev) || IS_GEN2(dev)) { |
5848 | u32 flip_mask; | |
48b956c5 | 5849 | |
c7f9f9a8 CW |
5850 | /* Can't queue multiple flips, so wait for the previous |
5851 | * one to finish before executing the next. | |
5852 | */ | |
e1f99ce6 CW |
5853 | ret = BEGIN_LP_RING(2); |
5854 | if (ret) | |
5855 | goto cleanup_objs; | |
5856 | ||
c7f9f9a8 CW |
5857 | if (intel_crtc->plane) |
5858 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
5859 | else | |
5860 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
5861 | OUT_RING(MI_WAIT_FOR_EVENT | flip_mask); | |
5862 | OUT_RING(MI_NOOP); | |
6146b3d6 DV |
5863 | ADVANCE_LP_RING(); |
5864 | } | |
83f7fd05 | 5865 | |
e1f99ce6 | 5866 | work->pending_flip_obj = obj; |
e1f99ce6 | 5867 | |
4e5359cd SF |
5868 | work->enable_stall_check = true; |
5869 | ||
be9a3dbf | 5870 | /* Offset into the new buffer for cases of shared fbs between CRTCs */ |
52e68630 | 5871 | offset = crtc->y * fb->pitch + crtc->x * fb->bits_per_pixel/8; |
be9a3dbf | 5872 | |
e1f99ce6 CW |
5873 | ret = BEGIN_LP_RING(4); |
5874 | if (ret) | |
5875 | goto cleanup_objs; | |
5876 | ||
5877 | /* Block clients from rendering to the new back buffer until | |
5878 | * the flip occurs and the object is no longer visible. | |
5879 | */ | |
05394f39 | 5880 | atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); |
e1f99ce6 CW |
5881 | |
5882 | switch (INTEL_INFO(dev)->gen) { | |
52e68630 | 5883 | case 2: |
1afe3e9d JB |
5884 | OUT_RING(MI_DISPLAY_FLIP | |
5885 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
5886 | OUT_RING(fb->pitch); | |
05394f39 | 5887 | OUT_RING(obj->gtt_offset + offset); |
52e68630 CW |
5888 | OUT_RING(MI_NOOP); |
5889 | break; | |
5890 | ||
5891 | case 3: | |
1afe3e9d JB |
5892 | OUT_RING(MI_DISPLAY_FLIP_I915 | |
5893 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
5894 | OUT_RING(fb->pitch); | |
05394f39 | 5895 | OUT_RING(obj->gtt_offset + offset); |
22fd0fab | 5896 | OUT_RING(MI_NOOP); |
52e68630 CW |
5897 | break; |
5898 | ||
5899 | case 4: | |
5900 | case 5: | |
5901 | /* i965+ uses the linear or tiled offsets from the | |
5902 | * Display Registers (which do not change across a page-flip) | |
5903 | * so we need only reprogram the base address. | |
5904 | */ | |
69d0b96c DV |
5905 | OUT_RING(MI_DISPLAY_FLIP | |
5906 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
5907 | OUT_RING(fb->pitch); | |
05394f39 | 5908 | OUT_RING(obj->gtt_offset | obj->tiling_mode); |
52e68630 CW |
5909 | |
5910 | /* XXX Enabling the panel-fitter across page-flip is so far | |
5911 | * untested on non-native modes, so ignore it for now. | |
5912 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
5913 | */ | |
5914 | pf = 0; | |
5915 | pipesrc = I915_READ(pipe == 0 ? PIPEASRC : PIPEBSRC) & 0x0fff0fff; | |
5916 | OUT_RING(pf | pipesrc); | |
5917 | break; | |
5918 | ||
5919 | case 6: | |
5920 | OUT_RING(MI_DISPLAY_FLIP | | |
5921 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
05394f39 CW |
5922 | OUT_RING(fb->pitch | obj->tiling_mode); |
5923 | OUT_RING(obj->gtt_offset); | |
52e68630 CW |
5924 | |
5925 | pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
5926 | pipesrc = I915_READ(pipe == 0 ? PIPEASRC : PIPEBSRC) & 0x0fff0fff; | |
5927 | OUT_RING(pf | pipesrc); | |
5928 | break; | |
22fd0fab | 5929 | } |
6b95a207 KH |
5930 | ADVANCE_LP_RING(); |
5931 | ||
5932 | mutex_unlock(&dev->struct_mutex); | |
5933 | ||
e5510fac JB |
5934 | trace_i915_flip_request(intel_crtc->plane, obj); |
5935 | ||
6b95a207 | 5936 | return 0; |
96b099fd CW |
5937 | |
5938 | cleanup_objs: | |
05394f39 CW |
5939 | drm_gem_object_unreference(&work->old_fb_obj->base); |
5940 | drm_gem_object_unreference(&obj->base); | |
96b099fd CW |
5941 | cleanup_work: |
5942 | mutex_unlock(&dev->struct_mutex); | |
5943 | ||
5944 | spin_lock_irqsave(&dev->event_lock, flags); | |
5945 | intel_crtc->unpin_work = NULL; | |
5946 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
5947 | ||
5948 | kfree(work); | |
5949 | ||
5950 | return ret; | |
6b95a207 KH |
5951 | } |
5952 | ||
7e7d76c3 | 5953 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
79e53945 JB |
5954 | .dpms = intel_crtc_dpms, |
5955 | .mode_fixup = intel_crtc_mode_fixup, | |
5956 | .mode_set = intel_crtc_mode_set, | |
5957 | .mode_set_base = intel_pipe_set_base, | |
81255565 | 5958 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
068143d3 | 5959 | .load_lut = intel_crtc_load_lut, |
cdd59983 | 5960 | .disable = intel_crtc_disable, |
79e53945 JB |
5961 | }; |
5962 | ||
5963 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
5964 | .cursor_set = intel_crtc_cursor_set, | |
5965 | .cursor_move = intel_crtc_cursor_move, | |
5966 | .gamma_set = intel_crtc_gamma_set, | |
5967 | .set_config = drm_crtc_helper_set_config, | |
5968 | .destroy = intel_crtc_destroy, | |
6b95a207 | 5969 | .page_flip = intel_crtc_page_flip, |
79e53945 JB |
5970 | }; |
5971 | ||
47f1c6c9 CW |
5972 | static void intel_sanitize_modesetting(struct drm_device *dev, |
5973 | int pipe, int plane) | |
5974 | { | |
5975 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5976 | u32 reg, val; | |
5977 | ||
5978 | if (HAS_PCH_SPLIT(dev)) | |
5979 | return; | |
5980 | ||
5981 | /* Who knows what state these registers were left in by the BIOS or | |
5982 | * grub? | |
5983 | * | |
5984 | * If we leave the registers in a conflicting state (e.g. with the | |
5985 | * display plane reading from the other pipe than the one we intend | |
5986 | * to use) then when we attempt to teardown the active mode, we will | |
5987 | * not disable the pipes and planes in the correct order -- leaving | |
5988 | * a plane reading from a disabled pipe and possibly leading to | |
5989 | * undefined behaviour. | |
5990 | */ | |
5991 | ||
5992 | reg = DSPCNTR(plane); | |
5993 | val = I915_READ(reg); | |
5994 | ||
5995 | if ((val & DISPLAY_PLANE_ENABLE) == 0) | |
5996 | return; | |
5997 | if (!!(val & DISPPLANE_SEL_PIPE_MASK) == pipe) | |
5998 | return; | |
5999 | ||
6000 | /* This display plane is active and attached to the other CPU pipe. */ | |
6001 | pipe = !pipe; | |
6002 | ||
6003 | /* Disable the plane and wait for it to stop reading from the pipe. */ | |
b24e7179 JB |
6004 | intel_disable_plane(dev_priv, plane, pipe); |
6005 | intel_disable_pipe(dev_priv, pipe); | |
47f1c6c9 | 6006 | } |
79e53945 | 6007 | |
b358d0a6 | 6008 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 6009 | { |
22fd0fab | 6010 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
6011 | struct intel_crtc *intel_crtc; |
6012 | int i; | |
6013 | ||
6014 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
6015 | if (intel_crtc == NULL) | |
6016 | return; | |
6017 | ||
6018 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
6019 | ||
6020 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
6021 | for (i = 0; i < 256; i++) { |
6022 | intel_crtc->lut_r[i] = i; | |
6023 | intel_crtc->lut_g[i] = i; | |
6024 | intel_crtc->lut_b[i] = i; | |
6025 | } | |
6026 | ||
80824003 JB |
6027 | /* Swap pipes & planes for FBC on pre-965 */ |
6028 | intel_crtc->pipe = pipe; | |
6029 | intel_crtc->plane = pipe; | |
e2e767ab | 6030 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
28c97730 | 6031 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 6032 | intel_crtc->plane = !pipe; |
80824003 JB |
6033 | } |
6034 | ||
22fd0fab JB |
6035 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
6036 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
6037 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
6038 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
6039 | ||
79e53945 | 6040 | intel_crtc->cursor_addr = 0; |
032d2a0d | 6041 | intel_crtc->dpms_mode = -1; |
e65d9305 | 6042 | intel_crtc->active = true; /* force the pipe off on setup_init_config */ |
7e7d76c3 JB |
6043 | |
6044 | if (HAS_PCH_SPLIT(dev)) { | |
6045 | intel_helper_funcs.prepare = ironlake_crtc_prepare; | |
6046 | intel_helper_funcs.commit = ironlake_crtc_commit; | |
6047 | } else { | |
6048 | intel_helper_funcs.prepare = i9xx_crtc_prepare; | |
6049 | intel_helper_funcs.commit = i9xx_crtc_commit; | |
6050 | } | |
6051 | ||
79e53945 JB |
6052 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
6053 | ||
652c393a JB |
6054 | intel_crtc->busy = false; |
6055 | ||
6056 | setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer, | |
6057 | (unsigned long)intel_crtc); | |
47f1c6c9 CW |
6058 | |
6059 | intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane); | |
79e53945 JB |
6060 | } |
6061 | ||
08d7b3d1 | 6062 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 6063 | struct drm_file *file) |
08d7b3d1 CW |
6064 | { |
6065 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6066 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; | |
c05422d5 DV |
6067 | struct drm_mode_object *drmmode_obj; |
6068 | struct intel_crtc *crtc; | |
08d7b3d1 CW |
6069 | |
6070 | if (!dev_priv) { | |
6071 | DRM_ERROR("called with no initialization\n"); | |
6072 | return -EINVAL; | |
6073 | } | |
6074 | ||
c05422d5 DV |
6075 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
6076 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 6077 | |
c05422d5 | 6078 | if (!drmmode_obj) { |
08d7b3d1 CW |
6079 | DRM_ERROR("no such CRTC id\n"); |
6080 | return -EINVAL; | |
6081 | } | |
6082 | ||
c05422d5 DV |
6083 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
6084 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 6085 | |
c05422d5 | 6086 | return 0; |
08d7b3d1 CW |
6087 | } |
6088 | ||
c5e4df33 | 6089 | static int intel_encoder_clones(struct drm_device *dev, int type_mask) |
79e53945 | 6090 | { |
4ef69c7a | 6091 | struct intel_encoder *encoder; |
79e53945 | 6092 | int index_mask = 0; |
79e53945 JB |
6093 | int entry = 0; |
6094 | ||
4ef69c7a CW |
6095 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
6096 | if (type_mask & encoder->clone_mask) | |
79e53945 JB |
6097 | index_mask |= (1 << entry); |
6098 | entry++; | |
6099 | } | |
4ef69c7a | 6100 | |
79e53945 JB |
6101 | return index_mask; |
6102 | } | |
6103 | ||
4d302442 CW |
6104 | static bool has_edp_a(struct drm_device *dev) |
6105 | { | |
6106 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6107 | ||
6108 | if (!IS_MOBILE(dev)) | |
6109 | return false; | |
6110 | ||
6111 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
6112 | return false; | |
6113 | ||
6114 | if (IS_GEN5(dev) && | |
6115 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) | |
6116 | return false; | |
6117 | ||
6118 | return true; | |
6119 | } | |
6120 | ||
79e53945 JB |
6121 | static void intel_setup_outputs(struct drm_device *dev) |
6122 | { | |
725e30ad | 6123 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 6124 | struct intel_encoder *encoder; |
cb0953d7 | 6125 | bool dpd_is_edp = false; |
c5d1b51d | 6126 | bool has_lvds = false; |
79e53945 | 6127 | |
541998a1 | 6128 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
c5d1b51d CW |
6129 | has_lvds = intel_lvds_init(dev); |
6130 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { | |
6131 | /* disable the panel fitter on everything but LVDS */ | |
6132 | I915_WRITE(PFIT_CONTROL, 0); | |
6133 | } | |
79e53945 | 6134 | |
bad720ff | 6135 | if (HAS_PCH_SPLIT(dev)) { |
cb0953d7 | 6136 | dpd_is_edp = intel_dpd_is_edp(dev); |
30ad48b7 | 6137 | |
4d302442 | 6138 | if (has_edp_a(dev)) |
32f9d658 ZW |
6139 | intel_dp_init(dev, DP_A); |
6140 | ||
cb0953d7 AJ |
6141 | if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
6142 | intel_dp_init(dev, PCH_DP_D); | |
6143 | } | |
6144 | ||
6145 | intel_crt_init(dev); | |
6146 | ||
6147 | if (HAS_PCH_SPLIT(dev)) { | |
6148 | int found; | |
6149 | ||
30ad48b7 | 6150 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
461ed3ca ZY |
6151 | /* PCH SDVOB multiplex with HDMIB */ |
6152 | found = intel_sdvo_init(dev, PCH_SDVOB); | |
30ad48b7 ZW |
6153 | if (!found) |
6154 | intel_hdmi_init(dev, HDMIB); | |
5eb08b69 ZW |
6155 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
6156 | intel_dp_init(dev, PCH_DP_B); | |
30ad48b7 ZW |
6157 | } |
6158 | ||
6159 | if (I915_READ(HDMIC) & PORT_DETECTED) | |
6160 | intel_hdmi_init(dev, HDMIC); | |
6161 | ||
6162 | if (I915_READ(HDMID) & PORT_DETECTED) | |
6163 | intel_hdmi_init(dev, HDMID); | |
6164 | ||
5eb08b69 ZW |
6165 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
6166 | intel_dp_init(dev, PCH_DP_C); | |
6167 | ||
cb0953d7 | 6168 | if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
5eb08b69 ZW |
6169 | intel_dp_init(dev, PCH_DP_D); |
6170 | ||
103a196f | 6171 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 6172 | bool found = false; |
7d57382e | 6173 | |
725e30ad | 6174 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 6175 | DRM_DEBUG_KMS("probing SDVOB\n"); |
725e30ad | 6176 | found = intel_sdvo_init(dev, SDVOB); |
b01f2c3a JB |
6177 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
6178 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
725e30ad | 6179 | intel_hdmi_init(dev, SDVOB); |
b01f2c3a | 6180 | } |
27185ae1 | 6181 | |
b01f2c3a JB |
6182 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
6183 | DRM_DEBUG_KMS("probing DP_B\n"); | |
a4fc5ed6 | 6184 | intel_dp_init(dev, DP_B); |
b01f2c3a | 6185 | } |
725e30ad | 6186 | } |
13520b05 KH |
6187 | |
6188 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 6189 | |
b01f2c3a JB |
6190 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
6191 | DRM_DEBUG_KMS("probing SDVOC\n"); | |
725e30ad | 6192 | found = intel_sdvo_init(dev, SDVOC); |
b01f2c3a | 6193 | } |
27185ae1 ML |
6194 | |
6195 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { | |
6196 | ||
b01f2c3a JB |
6197 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
6198 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
725e30ad | 6199 | intel_hdmi_init(dev, SDVOC); |
b01f2c3a JB |
6200 | } |
6201 | if (SUPPORTS_INTEGRATED_DP(dev)) { | |
6202 | DRM_DEBUG_KMS("probing DP_C\n"); | |
a4fc5ed6 | 6203 | intel_dp_init(dev, DP_C); |
b01f2c3a | 6204 | } |
725e30ad | 6205 | } |
27185ae1 | 6206 | |
b01f2c3a JB |
6207 | if (SUPPORTS_INTEGRATED_DP(dev) && |
6208 | (I915_READ(DP_D) & DP_DETECTED)) { | |
6209 | DRM_DEBUG_KMS("probing DP_D\n"); | |
a4fc5ed6 | 6210 | intel_dp_init(dev, DP_D); |
b01f2c3a | 6211 | } |
bad720ff | 6212 | } else if (IS_GEN2(dev)) |
79e53945 JB |
6213 | intel_dvo_init(dev); |
6214 | ||
103a196f | 6215 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
6216 | intel_tv_init(dev); |
6217 | ||
4ef69c7a CW |
6218 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
6219 | encoder->base.possible_crtcs = encoder->crtc_mask; | |
6220 | encoder->base.possible_clones = | |
6221 | intel_encoder_clones(dev, encoder->clone_mask); | |
79e53945 | 6222 | } |
47356eb6 CW |
6223 | |
6224 | intel_panel_setup_backlight(dev); | |
79e53945 JB |
6225 | } |
6226 | ||
6227 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
6228 | { | |
6229 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
79e53945 JB |
6230 | |
6231 | drm_framebuffer_cleanup(fb); | |
05394f39 | 6232 | drm_gem_object_unreference_unlocked(&intel_fb->obj->base); |
79e53945 JB |
6233 | |
6234 | kfree(intel_fb); | |
6235 | } | |
6236 | ||
6237 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 6238 | struct drm_file *file, |
79e53945 JB |
6239 | unsigned int *handle) |
6240 | { | |
6241 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 6242 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 6243 | |
05394f39 | 6244 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
6245 | } |
6246 | ||
6247 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
6248 | .destroy = intel_user_framebuffer_destroy, | |
6249 | .create_handle = intel_user_framebuffer_create_handle, | |
6250 | }; | |
6251 | ||
38651674 DA |
6252 | int intel_framebuffer_init(struct drm_device *dev, |
6253 | struct intel_framebuffer *intel_fb, | |
6254 | struct drm_mode_fb_cmd *mode_cmd, | |
05394f39 | 6255 | struct drm_i915_gem_object *obj) |
79e53945 | 6256 | { |
79e53945 JB |
6257 | int ret; |
6258 | ||
05394f39 | 6259 | if (obj->tiling_mode == I915_TILING_Y) |
57cd6508 CW |
6260 | return -EINVAL; |
6261 | ||
6262 | if (mode_cmd->pitch & 63) | |
6263 | return -EINVAL; | |
6264 | ||
6265 | switch (mode_cmd->bpp) { | |
6266 | case 8: | |
6267 | case 16: | |
6268 | case 24: | |
6269 | case 32: | |
6270 | break; | |
6271 | default: | |
6272 | return -EINVAL; | |
6273 | } | |
6274 | ||
79e53945 JB |
6275 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
6276 | if (ret) { | |
6277 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
6278 | return ret; | |
6279 | } | |
6280 | ||
6281 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); | |
79e53945 | 6282 | intel_fb->obj = obj; |
79e53945 JB |
6283 | return 0; |
6284 | } | |
6285 | ||
79e53945 JB |
6286 | static struct drm_framebuffer * |
6287 | intel_user_framebuffer_create(struct drm_device *dev, | |
6288 | struct drm_file *filp, | |
6289 | struct drm_mode_fb_cmd *mode_cmd) | |
6290 | { | |
05394f39 | 6291 | struct drm_i915_gem_object *obj; |
38651674 | 6292 | struct intel_framebuffer *intel_fb; |
79e53945 JB |
6293 | int ret; |
6294 | ||
05394f39 | 6295 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, mode_cmd->handle)); |
79e53945 | 6296 | if (!obj) |
cce13ff7 | 6297 | return ERR_PTR(-ENOENT); |
79e53945 | 6298 | |
38651674 DA |
6299 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
6300 | if (!intel_fb) | |
cce13ff7 | 6301 | return ERR_PTR(-ENOMEM); |
38651674 | 6302 | |
05394f39 | 6303 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); |
79e53945 | 6304 | if (ret) { |
05394f39 | 6305 | drm_gem_object_unreference_unlocked(&obj->base); |
38651674 | 6306 | kfree(intel_fb); |
cce13ff7 | 6307 | return ERR_PTR(ret); |
79e53945 JB |
6308 | } |
6309 | ||
38651674 | 6310 | return &intel_fb->base; |
79e53945 JB |
6311 | } |
6312 | ||
79e53945 | 6313 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 6314 | .fb_create = intel_user_framebuffer_create, |
eb1f8e4f | 6315 | .output_poll_changed = intel_fb_output_poll_changed, |
79e53945 JB |
6316 | }; |
6317 | ||
05394f39 | 6318 | static struct drm_i915_gem_object * |
aa40d6bb | 6319 | intel_alloc_context_page(struct drm_device *dev) |
9ea8d059 | 6320 | { |
05394f39 | 6321 | struct drm_i915_gem_object *ctx; |
9ea8d059 CW |
6322 | int ret; |
6323 | ||
aa40d6bb ZN |
6324 | ctx = i915_gem_alloc_object(dev, 4096); |
6325 | if (!ctx) { | |
9ea8d059 CW |
6326 | DRM_DEBUG("failed to alloc power context, RC6 disabled\n"); |
6327 | return NULL; | |
6328 | } | |
6329 | ||
6330 | mutex_lock(&dev->struct_mutex); | |
75e9e915 | 6331 | ret = i915_gem_object_pin(ctx, 4096, true); |
9ea8d059 CW |
6332 | if (ret) { |
6333 | DRM_ERROR("failed to pin power context: %d\n", ret); | |
6334 | goto err_unref; | |
6335 | } | |
6336 | ||
aa40d6bb | 6337 | ret = i915_gem_object_set_to_gtt_domain(ctx, 1); |
9ea8d059 CW |
6338 | if (ret) { |
6339 | DRM_ERROR("failed to set-domain on power context: %d\n", ret); | |
6340 | goto err_unpin; | |
6341 | } | |
6342 | mutex_unlock(&dev->struct_mutex); | |
6343 | ||
aa40d6bb | 6344 | return ctx; |
9ea8d059 CW |
6345 | |
6346 | err_unpin: | |
aa40d6bb | 6347 | i915_gem_object_unpin(ctx); |
9ea8d059 | 6348 | err_unref: |
05394f39 | 6349 | drm_gem_object_unreference(&ctx->base); |
9ea8d059 CW |
6350 | mutex_unlock(&dev->struct_mutex); |
6351 | return NULL; | |
6352 | } | |
6353 | ||
7648fa99 JB |
6354 | bool ironlake_set_drps(struct drm_device *dev, u8 val) |
6355 | { | |
6356 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6357 | u16 rgvswctl; | |
6358 | ||
6359 | rgvswctl = I915_READ16(MEMSWCTL); | |
6360 | if (rgvswctl & MEMCTL_CMD_STS) { | |
6361 | DRM_DEBUG("gpu busy, RCS change rejected\n"); | |
6362 | return false; /* still busy with another command */ | |
6363 | } | |
6364 | ||
6365 | rgvswctl = (MEMCTL_CMD_CHFREQ << MEMCTL_CMD_SHIFT) | | |
6366 | (val << MEMCTL_FREQ_SHIFT) | MEMCTL_SFCAVM; | |
6367 | I915_WRITE16(MEMSWCTL, rgvswctl); | |
6368 | POSTING_READ16(MEMSWCTL); | |
6369 | ||
6370 | rgvswctl |= MEMCTL_CMD_STS; | |
6371 | I915_WRITE16(MEMSWCTL, rgvswctl); | |
6372 | ||
6373 | return true; | |
6374 | } | |
6375 | ||
f97108d1 JB |
6376 | void ironlake_enable_drps(struct drm_device *dev) |
6377 | { | |
6378 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7648fa99 | 6379 | u32 rgvmodectl = I915_READ(MEMMODECTL); |
f97108d1 | 6380 | u8 fmax, fmin, fstart, vstart; |
f97108d1 | 6381 | |
ea056c14 JB |
6382 | /* Enable temp reporting */ |
6383 | I915_WRITE16(PMMISC, I915_READ(PMMISC) | MCPPCE_EN); | |
6384 | I915_WRITE16(TSC1, I915_READ(TSC1) | TSE); | |
6385 | ||
f97108d1 JB |
6386 | /* 100ms RC evaluation intervals */ |
6387 | I915_WRITE(RCUPEI, 100000); | |
6388 | I915_WRITE(RCDNEI, 100000); | |
6389 | ||
6390 | /* Set max/min thresholds to 90ms and 80ms respectively */ | |
6391 | I915_WRITE(RCBMAXAVG, 90000); | |
6392 | I915_WRITE(RCBMINAVG, 80000); | |
6393 | ||
6394 | I915_WRITE(MEMIHYST, 1); | |
6395 | ||
6396 | /* Set up min, max, and cur for interrupt handling */ | |
6397 | fmax = (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT; | |
6398 | fmin = (rgvmodectl & MEMMODE_FMIN_MASK); | |
6399 | fstart = (rgvmodectl & MEMMODE_FSTART_MASK) >> | |
6400 | MEMMODE_FSTART_SHIFT; | |
7648fa99 | 6401 | |
f97108d1 JB |
6402 | vstart = (I915_READ(PXVFREQ_BASE + (fstart * 4)) & PXVFREQ_PX_MASK) >> |
6403 | PXVFREQ_PX_SHIFT; | |
6404 | ||
80dbf4b7 | 6405 | dev_priv->fmax = fmax; /* IPS callback will increase this */ |
7648fa99 JB |
6406 | dev_priv->fstart = fstart; |
6407 | ||
80dbf4b7 | 6408 | dev_priv->max_delay = fstart; |
f97108d1 JB |
6409 | dev_priv->min_delay = fmin; |
6410 | dev_priv->cur_delay = fstart; | |
6411 | ||
80dbf4b7 JB |
6412 | DRM_DEBUG_DRIVER("fmax: %d, fmin: %d, fstart: %d\n", |
6413 | fmax, fmin, fstart); | |
7648fa99 | 6414 | |
f97108d1 JB |
6415 | I915_WRITE(MEMINTREN, MEMINT_CX_SUPR_EN | MEMINT_EVAL_CHG_EN); |
6416 | ||
6417 | /* | |
6418 | * Interrupts will be enabled in ironlake_irq_postinstall | |
6419 | */ | |
6420 | ||
6421 | I915_WRITE(VIDSTART, vstart); | |
6422 | POSTING_READ(VIDSTART); | |
6423 | ||
6424 | rgvmodectl |= MEMMODE_SWMODE_EN; | |
6425 | I915_WRITE(MEMMODECTL, rgvmodectl); | |
6426 | ||
481b6af3 | 6427 | if (wait_for((I915_READ(MEMSWCTL) & MEMCTL_CMD_STS) == 0, 10)) |
913d8d11 | 6428 | DRM_ERROR("stuck trying to change perf mode\n"); |
f97108d1 JB |
6429 | msleep(1); |
6430 | ||
7648fa99 | 6431 | ironlake_set_drps(dev, fstart); |
f97108d1 | 6432 | |
7648fa99 JB |
6433 | dev_priv->last_count1 = I915_READ(0x112e4) + I915_READ(0x112e8) + |
6434 | I915_READ(0x112e0); | |
6435 | dev_priv->last_time1 = jiffies_to_msecs(jiffies); | |
6436 | dev_priv->last_count2 = I915_READ(0x112f4); | |
6437 | getrawmonotonic(&dev_priv->last_time2); | |
f97108d1 JB |
6438 | } |
6439 | ||
6440 | void ironlake_disable_drps(struct drm_device *dev) | |
6441 | { | |
6442 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7648fa99 | 6443 | u16 rgvswctl = I915_READ16(MEMSWCTL); |
f97108d1 JB |
6444 | |
6445 | /* Ack interrupts, disable EFC interrupt */ | |
6446 | I915_WRITE(MEMINTREN, I915_READ(MEMINTREN) & ~MEMINT_EVAL_CHG_EN); | |
6447 | I915_WRITE(MEMINTRSTS, MEMINT_EVAL_CHG); | |
6448 | I915_WRITE(DEIER, I915_READ(DEIER) & ~DE_PCU_EVENT); | |
6449 | I915_WRITE(DEIIR, DE_PCU_EVENT); | |
6450 | I915_WRITE(DEIMR, I915_READ(DEIMR) | DE_PCU_EVENT); | |
6451 | ||
6452 | /* Go back to the starting frequency */ | |
7648fa99 | 6453 | ironlake_set_drps(dev, dev_priv->fstart); |
f97108d1 JB |
6454 | msleep(1); |
6455 | rgvswctl |= MEMCTL_CMD_STS; | |
6456 | I915_WRITE(MEMSWCTL, rgvswctl); | |
6457 | msleep(1); | |
6458 | ||
6459 | } | |
6460 | ||
3b8d8d91 JB |
6461 | void gen6_set_rps(struct drm_device *dev, u8 val) |
6462 | { | |
6463 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6464 | u32 swreq; | |
6465 | ||
6466 | swreq = (val & 0x3ff) << 25; | |
6467 | I915_WRITE(GEN6_RPNSWREQ, swreq); | |
6468 | } | |
6469 | ||
6470 | void gen6_disable_rps(struct drm_device *dev) | |
6471 | { | |
6472 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6473 | ||
6474 | I915_WRITE(GEN6_RPNSWREQ, 1 << 31); | |
6475 | I915_WRITE(GEN6_PMINTRMSK, 0xffffffff); | |
6476 | I915_WRITE(GEN6_PMIER, 0); | |
6477 | I915_WRITE(GEN6_PMIIR, I915_READ(GEN6_PMIIR)); | |
6478 | } | |
6479 | ||
7648fa99 JB |
6480 | static unsigned long intel_pxfreq(u32 vidfreq) |
6481 | { | |
6482 | unsigned long freq; | |
6483 | int div = (vidfreq & 0x3f0000) >> 16; | |
6484 | int post = (vidfreq & 0x3000) >> 12; | |
6485 | int pre = (vidfreq & 0x7); | |
6486 | ||
6487 | if (!pre) | |
6488 | return 0; | |
6489 | ||
6490 | freq = ((div * 133333) / ((1<<post) * pre)); | |
6491 | ||
6492 | return freq; | |
6493 | } | |
6494 | ||
6495 | void intel_init_emon(struct drm_device *dev) | |
6496 | { | |
6497 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6498 | u32 lcfuse; | |
6499 | u8 pxw[16]; | |
6500 | int i; | |
6501 | ||
6502 | /* Disable to program */ | |
6503 | I915_WRITE(ECR, 0); | |
6504 | POSTING_READ(ECR); | |
6505 | ||
6506 | /* Program energy weights for various events */ | |
6507 | I915_WRITE(SDEW, 0x15040d00); | |
6508 | I915_WRITE(CSIEW0, 0x007f0000); | |
6509 | I915_WRITE(CSIEW1, 0x1e220004); | |
6510 | I915_WRITE(CSIEW2, 0x04000004); | |
6511 | ||
6512 | for (i = 0; i < 5; i++) | |
6513 | I915_WRITE(PEW + (i * 4), 0); | |
6514 | for (i = 0; i < 3; i++) | |
6515 | I915_WRITE(DEW + (i * 4), 0); | |
6516 | ||
6517 | /* Program P-state weights to account for frequency power adjustment */ | |
6518 | for (i = 0; i < 16; i++) { | |
6519 | u32 pxvidfreq = I915_READ(PXVFREQ_BASE + (i * 4)); | |
6520 | unsigned long freq = intel_pxfreq(pxvidfreq); | |
6521 | unsigned long vid = (pxvidfreq & PXVFREQ_PX_MASK) >> | |
6522 | PXVFREQ_PX_SHIFT; | |
6523 | unsigned long val; | |
6524 | ||
6525 | val = vid * vid; | |
6526 | val *= (freq / 1000); | |
6527 | val *= 255; | |
6528 | val /= (127*127*900); | |
6529 | if (val > 0xff) | |
6530 | DRM_ERROR("bad pxval: %ld\n", val); | |
6531 | pxw[i] = val; | |
6532 | } | |
6533 | /* Render standby states get 0 weight */ | |
6534 | pxw[14] = 0; | |
6535 | pxw[15] = 0; | |
6536 | ||
6537 | for (i = 0; i < 4; i++) { | |
6538 | u32 val = (pxw[i*4] << 24) | (pxw[(i*4)+1] << 16) | | |
6539 | (pxw[(i*4)+2] << 8) | (pxw[(i*4)+3]); | |
6540 | I915_WRITE(PXW + (i * 4), val); | |
6541 | } | |
6542 | ||
6543 | /* Adjust magic regs to magic values (more experimental results) */ | |
6544 | I915_WRITE(OGW0, 0); | |
6545 | I915_WRITE(OGW1, 0); | |
6546 | I915_WRITE(EG0, 0x00007f00); | |
6547 | I915_WRITE(EG1, 0x0000000e); | |
6548 | I915_WRITE(EG2, 0x000e0000); | |
6549 | I915_WRITE(EG3, 0x68000300); | |
6550 | I915_WRITE(EG4, 0x42000000); | |
6551 | I915_WRITE(EG5, 0x00140031); | |
6552 | I915_WRITE(EG6, 0); | |
6553 | I915_WRITE(EG7, 0); | |
6554 | ||
6555 | for (i = 0; i < 8; i++) | |
6556 | I915_WRITE(PXWL + (i * 4), 0); | |
6557 | ||
6558 | /* Enable PMON + select events */ | |
6559 | I915_WRITE(ECR, 0x80000019); | |
6560 | ||
6561 | lcfuse = I915_READ(LCFUSE02); | |
6562 | ||
6563 | dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK); | |
6564 | } | |
6565 | ||
3b8d8d91 | 6566 | void gen6_enable_rps(struct drm_i915_private *dev_priv) |
8fd26859 | 6567 | { |
a6044e23 JB |
6568 | u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP); |
6569 | u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS); | |
6570 | u32 pcu_mbox; | |
6571 | int cur_freq, min_freq, max_freq; | |
8fd26859 CW |
6572 | int i; |
6573 | ||
6574 | /* Here begins a magic sequence of register writes to enable | |
6575 | * auto-downclocking. | |
6576 | * | |
6577 | * Perhaps there might be some value in exposing these to | |
6578 | * userspace... | |
6579 | */ | |
6580 | I915_WRITE(GEN6_RC_STATE, 0); | |
6581 | __gen6_force_wake_get(dev_priv); | |
6582 | ||
3b8d8d91 | 6583 | /* disable the counters and set deterministic thresholds */ |
8fd26859 CW |
6584 | I915_WRITE(GEN6_RC_CONTROL, 0); |
6585 | ||
6586 | I915_WRITE(GEN6_RC1_WAKE_RATE_LIMIT, 1000 << 16); | |
6587 | I915_WRITE(GEN6_RC6_WAKE_RATE_LIMIT, 40 << 16 | 30); | |
6588 | I915_WRITE(GEN6_RC6pp_WAKE_RATE_LIMIT, 30); | |
6589 | I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000); | |
6590 | I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25); | |
6591 | ||
6592 | for (i = 0; i < I915_NUM_RINGS; i++) | |
6593 | I915_WRITE(RING_MAX_IDLE(dev_priv->ring[i].mmio_base), 10); | |
6594 | ||
6595 | I915_WRITE(GEN6_RC_SLEEP, 0); | |
6596 | I915_WRITE(GEN6_RC1e_THRESHOLD, 1000); | |
6597 | I915_WRITE(GEN6_RC6_THRESHOLD, 50000); | |
6598 | I915_WRITE(GEN6_RC6p_THRESHOLD, 100000); | |
6599 | I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */ | |
6600 | ||
6601 | I915_WRITE(GEN6_RC_CONTROL, | |
6602 | GEN6_RC_CTL_RC6p_ENABLE | | |
6603 | GEN6_RC_CTL_RC6_ENABLE | | |
9c3d2f7f | 6604 | GEN6_RC_CTL_EI_MODE(1) | |
8fd26859 CW |
6605 | GEN6_RC_CTL_HW_ENABLE); |
6606 | ||
3b8d8d91 | 6607 | I915_WRITE(GEN6_RPNSWREQ, |
8fd26859 CW |
6608 | GEN6_FREQUENCY(10) | |
6609 | GEN6_OFFSET(0) | | |
6610 | GEN6_AGGRESSIVE_TURBO); | |
6611 | I915_WRITE(GEN6_RC_VIDEO_FREQ, | |
6612 | GEN6_FREQUENCY(12)); | |
6613 | ||
6614 | I915_WRITE(GEN6_RP_DOWN_TIMEOUT, 1000000); | |
6615 | I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, | |
6616 | 18 << 24 | | |
6617 | 6 << 16); | |
6618 | I915_WRITE(GEN6_RP_UP_THRESHOLD, 90000); | |
6619 | I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 100000); | |
6620 | I915_WRITE(GEN6_RP_UP_EI, 100000); | |
6621 | I915_WRITE(GEN6_RP_DOWN_EI, 300000); | |
6622 | I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10); | |
6623 | I915_WRITE(GEN6_RP_CONTROL, | |
6624 | GEN6_RP_MEDIA_TURBO | | |
6625 | GEN6_RP_USE_NORMAL_FREQ | | |
6626 | GEN6_RP_MEDIA_IS_GFX | | |
6627 | GEN6_RP_ENABLE | | |
6628 | GEN6_RP_UP_BUSY_MAX | | |
6629 | GEN6_RP_DOWN_BUSY_MIN); | |
6630 | ||
6631 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, | |
6632 | 500)) | |
6633 | DRM_ERROR("timeout waiting for pcode mailbox to become idle\n"); | |
6634 | ||
6635 | I915_WRITE(GEN6_PCODE_DATA, 0); | |
6636 | I915_WRITE(GEN6_PCODE_MAILBOX, | |
6637 | GEN6_PCODE_READY | | |
6638 | GEN6_PCODE_WRITE_MIN_FREQ_TABLE); | |
6639 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, | |
6640 | 500)) | |
6641 | DRM_ERROR("timeout waiting for pcode mailbox to finish\n"); | |
6642 | ||
a6044e23 JB |
6643 | min_freq = (rp_state_cap & 0xff0000) >> 16; |
6644 | max_freq = rp_state_cap & 0xff; | |
6645 | cur_freq = (gt_perf_status & 0xff00) >> 8; | |
6646 | ||
6647 | /* Check for overclock support */ | |
6648 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, | |
6649 | 500)) | |
6650 | DRM_ERROR("timeout waiting for pcode mailbox to become idle\n"); | |
6651 | I915_WRITE(GEN6_PCODE_MAILBOX, GEN6_READ_OC_PARAMS); | |
6652 | pcu_mbox = I915_READ(GEN6_PCODE_DATA); | |
6653 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, | |
6654 | 500)) | |
6655 | DRM_ERROR("timeout waiting for pcode mailbox to finish\n"); | |
6656 | if (pcu_mbox & (1<<31)) { /* OC supported */ | |
6657 | max_freq = pcu_mbox & 0xff; | |
6658 | DRM_DEBUG_DRIVER("overclocking supported, adjusting frequency max to %dMHz\n", pcu_mbox * 100); | |
6659 | } | |
6660 | ||
6661 | /* In units of 100MHz */ | |
6662 | dev_priv->max_delay = max_freq; | |
6663 | dev_priv->min_delay = min_freq; | |
6664 | dev_priv->cur_delay = cur_freq; | |
6665 | ||
8fd26859 CW |
6666 | /* requires MSI enabled */ |
6667 | I915_WRITE(GEN6_PMIER, | |
6668 | GEN6_PM_MBOX_EVENT | | |
6669 | GEN6_PM_THERMAL_EVENT | | |
6670 | GEN6_PM_RP_DOWN_TIMEOUT | | |
6671 | GEN6_PM_RP_UP_THRESHOLD | | |
6672 | GEN6_PM_RP_DOWN_THRESHOLD | | |
6673 | GEN6_PM_RP_UP_EI_EXPIRED | | |
6674 | GEN6_PM_RP_DOWN_EI_EXPIRED); | |
3b8d8d91 JB |
6675 | I915_WRITE(GEN6_PMIMR, 0); |
6676 | /* enable all PM interrupts */ | |
6677 | I915_WRITE(GEN6_PMINTRMSK, 0); | |
8fd26859 CW |
6678 | |
6679 | __gen6_force_wake_put(dev_priv); | |
6680 | } | |
6681 | ||
0cdab21f | 6682 | void intel_enable_clock_gating(struct drm_device *dev) |
652c393a JB |
6683 | { |
6684 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6685 | ||
6686 | /* | |
6687 | * Disable clock gating reported to work incorrectly according to the | |
6688 | * specs, but enable as much else as we can. | |
6689 | */ | |
bad720ff | 6690 | if (HAS_PCH_SPLIT(dev)) { |
8956c8bb EA |
6691 | uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; |
6692 | ||
f00a3ddf | 6693 | if (IS_GEN5(dev)) { |
8956c8bb EA |
6694 | /* Required for FBC */ |
6695 | dspclk_gate |= DPFDUNIT_CLOCK_GATE_DISABLE; | |
6696 | /* Required for CxSR */ | |
6697 | dspclk_gate |= DPARBUNIT_CLOCK_GATE_DISABLE; | |
6698 | ||
6699 | I915_WRITE(PCH_3DCGDIS0, | |
6700 | MARIUNIT_CLOCK_GATE_DISABLE | | |
6701 | SVSMUNIT_CLOCK_GATE_DISABLE); | |
06f37751 EA |
6702 | I915_WRITE(PCH_3DCGDIS1, |
6703 | VFMUNIT_CLOCK_GATE_DISABLE); | |
8956c8bb EA |
6704 | } |
6705 | ||
6706 | I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); | |
7f8a8569 | 6707 | |
382b0936 JB |
6708 | /* |
6709 | * On Ibex Peak and Cougar Point, we need to disable clock | |
6710 | * gating for the panel power sequencer or it will fail to | |
6711 | * start up when no ports are active. | |
6712 | */ | |
6713 | I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE); | |
6714 | ||
7f8a8569 ZW |
6715 | /* |
6716 | * According to the spec the following bits should be set in | |
6717 | * order to enable memory self-refresh | |
6718 | * The bit 22/21 of 0x42004 | |
6719 | * The bit 5 of 0x42020 | |
6720 | * The bit 15 of 0x45000 | |
6721 | */ | |
f00a3ddf | 6722 | if (IS_GEN5(dev)) { |
7f8a8569 ZW |
6723 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
6724 | (I915_READ(ILK_DISPLAY_CHICKEN2) | | |
6725 | ILK_DPARB_GATE | ILK_VSDPFD_FULL)); | |
6726 | I915_WRITE(ILK_DSPCLK_GATE, | |
6727 | (I915_READ(ILK_DSPCLK_GATE) | | |
6728 | ILK_DPARB_CLK_GATE)); | |
6729 | I915_WRITE(DISP_ARB_CTL, | |
6730 | (I915_READ(DISP_ARB_CTL) | | |
6731 | DISP_FBC_WM_DIS)); | |
1398261a YL |
6732 | I915_WRITE(WM3_LP_ILK, 0); |
6733 | I915_WRITE(WM2_LP_ILK, 0); | |
6734 | I915_WRITE(WM1_LP_ILK, 0); | |
7f8a8569 | 6735 | } |
b52eb4dc ZY |
6736 | /* |
6737 | * Based on the document from hardware guys the following bits | |
6738 | * should be set unconditionally in order to enable FBC. | |
6739 | * The bit 22 of 0x42000 | |
6740 | * The bit 22 of 0x42004 | |
6741 | * The bit 7,8,9 of 0x42020. | |
6742 | */ | |
6743 | if (IS_IRONLAKE_M(dev)) { | |
6744 | I915_WRITE(ILK_DISPLAY_CHICKEN1, | |
6745 | I915_READ(ILK_DISPLAY_CHICKEN1) | | |
6746 | ILK_FBCQ_DIS); | |
6747 | I915_WRITE(ILK_DISPLAY_CHICKEN2, | |
6748 | I915_READ(ILK_DISPLAY_CHICKEN2) | | |
6749 | ILK_DPARB_GATE); | |
6750 | I915_WRITE(ILK_DSPCLK_GATE, | |
6751 | I915_READ(ILK_DSPCLK_GATE) | | |
6752 | ILK_DPFC_DIS1 | | |
6753 | ILK_DPFC_DIS2 | | |
6754 | ILK_CLK_FBC); | |
6755 | } | |
de6e2eaf | 6756 | |
67e92af0 EA |
6757 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
6758 | I915_READ(ILK_DISPLAY_CHICKEN2) | | |
6759 | ILK_ELPIN_409_SELECT); | |
6760 | ||
de6e2eaf EA |
6761 | if (IS_GEN5(dev)) { |
6762 | I915_WRITE(_3D_CHICKEN2, | |
6763 | _3D_CHICKEN2_WM_READ_PIPELINED << 16 | | |
6764 | _3D_CHICKEN2_WM_READ_PIPELINED); | |
6765 | } | |
8fd26859 | 6766 | |
1398261a YL |
6767 | if (IS_GEN6(dev)) { |
6768 | I915_WRITE(WM3_LP_ILK, 0); | |
6769 | I915_WRITE(WM2_LP_ILK, 0); | |
6770 | I915_WRITE(WM1_LP_ILK, 0); | |
6771 | ||
6772 | /* | |
6773 | * According to the spec the following bits should be | |
6774 | * set in order to enable memory self-refresh and fbc: | |
6775 | * The bit21 and bit22 of 0x42000 | |
6776 | * The bit21 and bit22 of 0x42004 | |
6777 | * The bit5 and bit7 of 0x42020 | |
6778 | * The bit14 of 0x70180 | |
6779 | * The bit14 of 0x71180 | |
6780 | */ | |
6781 | I915_WRITE(ILK_DISPLAY_CHICKEN1, | |
6782 | I915_READ(ILK_DISPLAY_CHICKEN1) | | |
6783 | ILK_FBCQ_DIS | ILK_PABSTRETCH_DIS); | |
6784 | I915_WRITE(ILK_DISPLAY_CHICKEN2, | |
6785 | I915_READ(ILK_DISPLAY_CHICKEN2) | | |
6786 | ILK_DPARB_GATE | ILK_VSDPFD_FULL); | |
6787 | I915_WRITE(ILK_DSPCLK_GATE, | |
6788 | I915_READ(ILK_DSPCLK_GATE) | | |
6789 | ILK_DPARB_CLK_GATE | | |
6790 | ILK_DPFD_CLK_GATE); | |
6791 | ||
6792 | I915_WRITE(DSPACNTR, | |
6793 | I915_READ(DSPACNTR) | | |
6794 | DISPPLANE_TRICKLE_FEED_DISABLE); | |
6795 | I915_WRITE(DSPBCNTR, | |
6796 | I915_READ(DSPBCNTR) | | |
6797 | DISPPLANE_TRICKLE_FEED_DISABLE); | |
6798 | } | |
c03342fa | 6799 | } else if (IS_G4X(dev)) { |
652c393a JB |
6800 | uint32_t dspclk_gate; |
6801 | I915_WRITE(RENCLK_GATE_D1, 0); | |
6802 | I915_WRITE(RENCLK_GATE_D2, VF_UNIT_CLOCK_GATE_DISABLE | | |
6803 | GS_UNIT_CLOCK_GATE_DISABLE | | |
6804 | CL_UNIT_CLOCK_GATE_DISABLE); | |
6805 | I915_WRITE(RAMCLK_GATE_D, 0); | |
6806 | dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE | | |
6807 | OVRUNIT_CLOCK_GATE_DISABLE | | |
6808 | OVCUNIT_CLOCK_GATE_DISABLE; | |
6809 | if (IS_GM45(dev)) | |
6810 | dspclk_gate |= DSSUNIT_CLOCK_GATE_DISABLE; | |
6811 | I915_WRITE(DSPCLK_GATE_D, dspclk_gate); | |
a6c45cf0 | 6812 | } else if (IS_CRESTLINE(dev)) { |
652c393a JB |
6813 | I915_WRITE(RENCLK_GATE_D1, I965_RCC_CLOCK_GATE_DISABLE); |
6814 | I915_WRITE(RENCLK_GATE_D2, 0); | |
6815 | I915_WRITE(DSPCLK_GATE_D, 0); | |
6816 | I915_WRITE(RAMCLK_GATE_D, 0); | |
6817 | I915_WRITE16(DEUC, 0); | |
a6c45cf0 | 6818 | } else if (IS_BROADWATER(dev)) { |
652c393a JB |
6819 | I915_WRITE(RENCLK_GATE_D1, I965_RCZ_CLOCK_GATE_DISABLE | |
6820 | I965_RCC_CLOCK_GATE_DISABLE | | |
6821 | I965_RCPB_CLOCK_GATE_DISABLE | | |
6822 | I965_ISC_CLOCK_GATE_DISABLE | | |
6823 | I965_FBC_CLOCK_GATE_DISABLE); | |
6824 | I915_WRITE(RENCLK_GATE_D2, 0); | |
a6c45cf0 | 6825 | } else if (IS_GEN3(dev)) { |
652c393a JB |
6826 | u32 dstate = I915_READ(D_STATE); |
6827 | ||
6828 | dstate |= DSTATE_PLL_D3_OFF | DSTATE_GFX_CLOCK_GATING | | |
6829 | DSTATE_DOT_CLOCK_GATING; | |
6830 | I915_WRITE(D_STATE, dstate); | |
f0f8a9ce | 6831 | } else if (IS_I85X(dev) || IS_I865G(dev)) { |
652c393a JB |
6832 | I915_WRITE(RENCLK_GATE_D1, SV_CLOCK_GATE_DISABLE); |
6833 | } else if (IS_I830(dev)) { | |
6834 | I915_WRITE(DSPCLK_GATE_D, OVRUNIT_CLOCK_GATE_DISABLE); | |
6835 | } | |
6836 | } | |
6837 | ||
0cdab21f CW |
6838 | void intel_disable_clock_gating(struct drm_device *dev) |
6839 | { | |
6840 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6841 | ||
6842 | if (dev_priv->renderctx) { | |
6843 | struct drm_i915_gem_object *obj = dev_priv->renderctx; | |
6844 | ||
6845 | I915_WRITE(CCID, 0); | |
6846 | POSTING_READ(CCID); | |
6847 | ||
6848 | i915_gem_object_unpin(obj); | |
6849 | drm_gem_object_unreference(&obj->base); | |
6850 | dev_priv->renderctx = NULL; | |
6851 | } | |
6852 | ||
6853 | if (dev_priv->pwrctx) { | |
6854 | struct drm_i915_gem_object *obj = dev_priv->pwrctx; | |
6855 | ||
6856 | I915_WRITE(PWRCTXA, 0); | |
6857 | POSTING_READ(PWRCTXA); | |
6858 | ||
6859 | i915_gem_object_unpin(obj); | |
6860 | drm_gem_object_unreference(&obj->base); | |
6861 | dev_priv->pwrctx = NULL; | |
6862 | } | |
6863 | } | |
6864 | ||
d5bb081b JB |
6865 | static void ironlake_disable_rc6(struct drm_device *dev) |
6866 | { | |
6867 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6868 | ||
6869 | /* Wake the GPU, prevent RC6, then restore RSTDBYCTL */ | |
6870 | I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) | RCX_SW_EXIT); | |
6871 | wait_for(((I915_READ(RSTDBYCTL) & RSX_STATUS_MASK) == RSX_STATUS_ON), | |
6872 | 10); | |
6873 | POSTING_READ(CCID); | |
6874 | I915_WRITE(PWRCTXA, 0); | |
6875 | POSTING_READ(PWRCTXA); | |
6876 | I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); | |
6877 | POSTING_READ(RSTDBYCTL); | |
6878 | i915_gem_object_unpin(dev_priv->renderctx); | |
6879 | drm_gem_object_unreference(&dev_priv->renderctx->base); | |
6880 | dev_priv->renderctx = NULL; | |
6881 | i915_gem_object_unpin(dev_priv->pwrctx); | |
6882 | drm_gem_object_unreference(&dev_priv->pwrctx->base); | |
6883 | dev_priv->pwrctx = NULL; | |
6884 | } | |
6885 | ||
6886 | void ironlake_enable_rc6(struct drm_device *dev) | |
6887 | { | |
6888 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6889 | int ret; | |
6890 | ||
6891 | /* | |
6892 | * GPU can automatically power down the render unit if given a page | |
6893 | * to save state. | |
6894 | */ | |
6895 | ret = BEGIN_LP_RING(6); | |
6896 | if (ret) { | |
6897 | ironlake_disable_rc6(dev); | |
6898 | return; | |
6899 | } | |
6900 | OUT_RING(MI_SUSPEND_FLUSH | MI_SUSPEND_FLUSH_EN); | |
6901 | OUT_RING(MI_SET_CONTEXT); | |
6902 | OUT_RING(dev_priv->renderctx->gtt_offset | | |
6903 | MI_MM_SPACE_GTT | | |
6904 | MI_SAVE_EXT_STATE_EN | | |
6905 | MI_RESTORE_EXT_STATE_EN | | |
6906 | MI_RESTORE_INHIBIT); | |
6907 | OUT_RING(MI_SUSPEND_FLUSH); | |
6908 | OUT_RING(MI_NOOP); | |
6909 | OUT_RING(MI_FLUSH); | |
6910 | ADVANCE_LP_RING(); | |
6911 | ||
6912 | I915_WRITE(PWRCTXA, dev_priv->pwrctx->gtt_offset | PWRCTX_EN); | |
6913 | I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); | |
6914 | } | |
6915 | ||
e70236a8 JB |
6916 | /* Set up chip specific display functions */ |
6917 | static void intel_init_display(struct drm_device *dev) | |
6918 | { | |
6919 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6920 | ||
6921 | /* We always want a DPMS function */ | |
bad720ff | 6922 | if (HAS_PCH_SPLIT(dev)) |
f2b115e6 | 6923 | dev_priv->display.dpms = ironlake_crtc_dpms; |
e70236a8 JB |
6924 | else |
6925 | dev_priv->display.dpms = i9xx_crtc_dpms; | |
6926 | ||
ee5382ae | 6927 | if (I915_HAS_FBC(dev)) { |
9c04f015 | 6928 | if (HAS_PCH_SPLIT(dev)) { |
b52eb4dc ZY |
6929 | dev_priv->display.fbc_enabled = ironlake_fbc_enabled; |
6930 | dev_priv->display.enable_fbc = ironlake_enable_fbc; | |
6931 | dev_priv->display.disable_fbc = ironlake_disable_fbc; | |
6932 | } else if (IS_GM45(dev)) { | |
74dff282 JB |
6933 | dev_priv->display.fbc_enabled = g4x_fbc_enabled; |
6934 | dev_priv->display.enable_fbc = g4x_enable_fbc; | |
6935 | dev_priv->display.disable_fbc = g4x_disable_fbc; | |
a6c45cf0 | 6936 | } else if (IS_CRESTLINE(dev)) { |
e70236a8 JB |
6937 | dev_priv->display.fbc_enabled = i8xx_fbc_enabled; |
6938 | dev_priv->display.enable_fbc = i8xx_enable_fbc; | |
6939 | dev_priv->display.disable_fbc = i8xx_disable_fbc; | |
6940 | } | |
74dff282 | 6941 | /* 855GM needs testing */ |
e70236a8 JB |
6942 | } |
6943 | ||
6944 | /* Returns the core display clock speed */ | |
f2b115e6 | 6945 | if (IS_I945G(dev) || (IS_G33(dev) && ! IS_PINEVIEW_M(dev))) |
e70236a8 JB |
6946 | dev_priv->display.get_display_clock_speed = |
6947 | i945_get_display_clock_speed; | |
6948 | else if (IS_I915G(dev)) | |
6949 | dev_priv->display.get_display_clock_speed = | |
6950 | i915_get_display_clock_speed; | |
f2b115e6 | 6951 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
6952 | dev_priv->display.get_display_clock_speed = |
6953 | i9xx_misc_get_display_clock_speed; | |
6954 | else if (IS_I915GM(dev)) | |
6955 | dev_priv->display.get_display_clock_speed = | |
6956 | i915gm_get_display_clock_speed; | |
6957 | else if (IS_I865G(dev)) | |
6958 | dev_priv->display.get_display_clock_speed = | |
6959 | i865_get_display_clock_speed; | |
f0f8a9ce | 6960 | else if (IS_I85X(dev)) |
e70236a8 JB |
6961 | dev_priv->display.get_display_clock_speed = |
6962 | i855_get_display_clock_speed; | |
6963 | else /* 852, 830 */ | |
6964 | dev_priv->display.get_display_clock_speed = | |
6965 | i830_get_display_clock_speed; | |
6966 | ||
6967 | /* For FIFO watermark updates */ | |
7f8a8569 | 6968 | if (HAS_PCH_SPLIT(dev)) { |
f00a3ddf | 6969 | if (IS_GEN5(dev)) { |
7f8a8569 ZW |
6970 | if (I915_READ(MLTR_ILK) & ILK_SRLT_MASK) |
6971 | dev_priv->display.update_wm = ironlake_update_wm; | |
6972 | else { | |
6973 | DRM_DEBUG_KMS("Failed to get proper latency. " | |
6974 | "Disable CxSR\n"); | |
6975 | dev_priv->display.update_wm = NULL; | |
1398261a YL |
6976 | } |
6977 | } else if (IS_GEN6(dev)) { | |
6978 | if (SNB_READ_WM0_LATENCY()) { | |
6979 | dev_priv->display.update_wm = sandybridge_update_wm; | |
6980 | } else { | |
6981 | DRM_DEBUG_KMS("Failed to read display plane latency. " | |
6982 | "Disable CxSR\n"); | |
6983 | dev_priv->display.update_wm = NULL; | |
7f8a8569 ZW |
6984 | } |
6985 | } else | |
6986 | dev_priv->display.update_wm = NULL; | |
6987 | } else if (IS_PINEVIEW(dev)) { | |
d4294342 | 6988 | if (!intel_get_cxsr_latency(IS_PINEVIEW_G(dev), |
95534263 | 6989 | dev_priv->is_ddr3, |
d4294342 ZY |
6990 | dev_priv->fsb_freq, |
6991 | dev_priv->mem_freq)) { | |
6992 | DRM_INFO("failed to find known CxSR latency " | |
95534263 | 6993 | "(found ddr%s fsb freq %d, mem freq %d), " |
d4294342 | 6994 | "disabling CxSR\n", |
95534263 | 6995 | (dev_priv->is_ddr3 == 1) ? "3": "2", |
d4294342 ZY |
6996 | dev_priv->fsb_freq, dev_priv->mem_freq); |
6997 | /* Disable CxSR and never update its watermark again */ | |
6998 | pineview_disable_cxsr(dev); | |
6999 | dev_priv->display.update_wm = NULL; | |
7000 | } else | |
7001 | dev_priv->display.update_wm = pineview_update_wm; | |
7002 | } else if (IS_G4X(dev)) | |
e70236a8 | 7003 | dev_priv->display.update_wm = g4x_update_wm; |
a6c45cf0 | 7004 | else if (IS_GEN4(dev)) |
e70236a8 | 7005 | dev_priv->display.update_wm = i965_update_wm; |
a6c45cf0 | 7006 | else if (IS_GEN3(dev)) { |
e70236a8 JB |
7007 | dev_priv->display.update_wm = i9xx_update_wm; |
7008 | dev_priv->display.get_fifo_size = i9xx_get_fifo_size; | |
8f4695ed AJ |
7009 | } else if (IS_I85X(dev)) { |
7010 | dev_priv->display.update_wm = i9xx_update_wm; | |
7011 | dev_priv->display.get_fifo_size = i85x_get_fifo_size; | |
e70236a8 | 7012 | } else { |
8f4695ed AJ |
7013 | dev_priv->display.update_wm = i830_update_wm; |
7014 | if (IS_845G(dev)) | |
e70236a8 JB |
7015 | dev_priv->display.get_fifo_size = i845_get_fifo_size; |
7016 | else | |
7017 | dev_priv->display.get_fifo_size = i830_get_fifo_size; | |
e70236a8 JB |
7018 | } |
7019 | } | |
7020 | ||
b690e96c JB |
7021 | /* |
7022 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
7023 | * resume, or other times. This quirk makes sure that's the case for | |
7024 | * affected systems. | |
7025 | */ | |
7026 | static void quirk_pipea_force (struct drm_device *dev) | |
7027 | { | |
7028 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7029 | ||
7030 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
7031 | DRM_DEBUG_DRIVER("applying pipe a force quirk\n"); | |
7032 | } | |
7033 | ||
7034 | struct intel_quirk { | |
7035 | int device; | |
7036 | int subsystem_vendor; | |
7037 | int subsystem_device; | |
7038 | void (*hook)(struct drm_device *dev); | |
7039 | }; | |
7040 | ||
7041 | struct intel_quirk intel_quirks[] = { | |
7042 | /* HP Compaq 2730p needs pipe A force quirk (LP: #291555) */ | |
7043 | { 0x2a42, 0x103c, 0x30eb, quirk_pipea_force }, | |
7044 | /* HP Mini needs pipe A force quirk (LP: #322104) */ | |
7045 | { 0x27ae,0x103c, 0x361a, quirk_pipea_force }, | |
7046 | ||
7047 | /* Thinkpad R31 needs pipe A force quirk */ | |
7048 | { 0x3577, 0x1014, 0x0505, quirk_pipea_force }, | |
7049 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ | |
7050 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
7051 | ||
7052 | /* ThinkPad X30 needs pipe A force quirk (LP: #304614) */ | |
7053 | { 0x3577, 0x1014, 0x0513, quirk_pipea_force }, | |
7054 | /* ThinkPad X40 needs pipe A force quirk */ | |
7055 | ||
7056 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ | |
7057 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
7058 | ||
7059 | /* 855 & before need to leave pipe A & dpll A up */ | |
7060 | { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
7061 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
7062 | }; | |
7063 | ||
7064 | static void intel_init_quirks(struct drm_device *dev) | |
7065 | { | |
7066 | struct pci_dev *d = dev->pdev; | |
7067 | int i; | |
7068 | ||
7069 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
7070 | struct intel_quirk *q = &intel_quirks[i]; | |
7071 | ||
7072 | if (d->device == q->device && | |
7073 | (d->subsystem_vendor == q->subsystem_vendor || | |
7074 | q->subsystem_vendor == PCI_ANY_ID) && | |
7075 | (d->subsystem_device == q->subsystem_device || | |
7076 | q->subsystem_device == PCI_ANY_ID)) | |
7077 | q->hook(dev); | |
7078 | } | |
7079 | } | |
7080 | ||
9cce37f4 JB |
7081 | /* Disable the VGA plane that we never use */ |
7082 | static void i915_disable_vga(struct drm_device *dev) | |
7083 | { | |
7084 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7085 | u8 sr1; | |
7086 | u32 vga_reg; | |
7087 | ||
7088 | if (HAS_PCH_SPLIT(dev)) | |
7089 | vga_reg = CPU_VGACNTRL; | |
7090 | else | |
7091 | vga_reg = VGACNTRL; | |
7092 | ||
7093 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); | |
7094 | outb(1, VGA_SR_INDEX); | |
7095 | sr1 = inb(VGA_SR_DATA); | |
7096 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
7097 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
7098 | udelay(300); | |
7099 | ||
7100 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
7101 | POSTING_READ(vga_reg); | |
7102 | } | |
7103 | ||
79e53945 JB |
7104 | void intel_modeset_init(struct drm_device *dev) |
7105 | { | |
652c393a | 7106 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
7107 | int i; |
7108 | ||
7109 | drm_mode_config_init(dev); | |
7110 | ||
7111 | dev->mode_config.min_width = 0; | |
7112 | dev->mode_config.min_height = 0; | |
7113 | ||
7114 | dev->mode_config.funcs = (void *)&intel_mode_funcs; | |
7115 | ||
b690e96c JB |
7116 | intel_init_quirks(dev); |
7117 | ||
e70236a8 JB |
7118 | intel_init_display(dev); |
7119 | ||
a6c45cf0 CW |
7120 | if (IS_GEN2(dev)) { |
7121 | dev->mode_config.max_width = 2048; | |
7122 | dev->mode_config.max_height = 2048; | |
7123 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
7124 | dev->mode_config.max_width = 4096; |
7125 | dev->mode_config.max_height = 4096; | |
79e53945 | 7126 | } else { |
a6c45cf0 CW |
7127 | dev->mode_config.max_width = 8192; |
7128 | dev->mode_config.max_height = 8192; | |
79e53945 | 7129 | } |
35c3047a | 7130 | dev->mode_config.fb_base = dev->agp->base; |
79e53945 | 7131 | |
a6c45cf0 | 7132 | if (IS_MOBILE(dev) || !IS_GEN2(dev)) |
a3524f1b | 7133 | dev_priv->num_pipe = 2; |
79e53945 | 7134 | else |
a3524f1b | 7135 | dev_priv->num_pipe = 1; |
28c97730 | 7136 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
a3524f1b | 7137 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
79e53945 | 7138 | |
a3524f1b | 7139 | for (i = 0; i < dev_priv->num_pipe; i++) { |
79e53945 JB |
7140 | intel_crtc_init(dev, i); |
7141 | } | |
7142 | ||
7143 | intel_setup_outputs(dev); | |
652c393a | 7144 | |
0cdab21f | 7145 | intel_enable_clock_gating(dev); |
652c393a | 7146 | |
9cce37f4 JB |
7147 | /* Just disable it once at startup */ |
7148 | i915_disable_vga(dev); | |
7149 | ||
7648fa99 | 7150 | if (IS_IRONLAKE_M(dev)) { |
f97108d1 | 7151 | ironlake_enable_drps(dev); |
7648fa99 JB |
7152 | intel_init_emon(dev); |
7153 | } | |
f97108d1 | 7154 | |
3b8d8d91 JB |
7155 | if (IS_GEN6(dev)) |
7156 | gen6_enable_rps(dev_priv); | |
7157 | ||
d5bb081b JB |
7158 | if (IS_IRONLAKE_M(dev)) { |
7159 | dev_priv->renderctx = intel_alloc_context_page(dev); | |
7160 | if (!dev_priv->renderctx) | |
7161 | goto skip_rc6; | |
7162 | dev_priv->pwrctx = intel_alloc_context_page(dev); | |
7163 | if (!dev_priv->pwrctx) { | |
7164 | i915_gem_object_unpin(dev_priv->renderctx); | |
7165 | drm_gem_object_unreference(&dev_priv->renderctx->base); | |
7166 | dev_priv->renderctx = NULL; | |
7167 | goto skip_rc6; | |
7168 | } | |
7169 | ironlake_enable_rc6(dev); | |
7170 | } | |
7171 | ||
7172 | skip_rc6: | |
652c393a JB |
7173 | INIT_WORK(&dev_priv->idle_work, intel_idle_update); |
7174 | setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer, | |
7175 | (unsigned long)dev); | |
02e792fb DV |
7176 | |
7177 | intel_setup_overlay(dev); | |
79e53945 JB |
7178 | } |
7179 | ||
7180 | void intel_modeset_cleanup(struct drm_device *dev) | |
7181 | { | |
652c393a JB |
7182 | struct drm_i915_private *dev_priv = dev->dev_private; |
7183 | struct drm_crtc *crtc; | |
7184 | struct intel_crtc *intel_crtc; | |
7185 | ||
f87ea761 | 7186 | drm_kms_helper_poll_fini(dev); |
652c393a JB |
7187 | mutex_lock(&dev->struct_mutex); |
7188 | ||
723bfd70 JB |
7189 | intel_unregister_dsm_handler(); |
7190 | ||
7191 | ||
652c393a JB |
7192 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
7193 | /* Skip inactive CRTCs */ | |
7194 | if (!crtc->fb) | |
7195 | continue; | |
7196 | ||
7197 | intel_crtc = to_intel_crtc(crtc); | |
3dec0095 | 7198 | intel_increase_pllclock(crtc); |
652c393a JB |
7199 | } |
7200 | ||
e70236a8 JB |
7201 | if (dev_priv->display.disable_fbc) |
7202 | dev_priv->display.disable_fbc(dev); | |
7203 | ||
f97108d1 JB |
7204 | if (IS_IRONLAKE_M(dev)) |
7205 | ironlake_disable_drps(dev); | |
3b8d8d91 JB |
7206 | if (IS_GEN6(dev)) |
7207 | gen6_disable_rps(dev); | |
f97108d1 | 7208 | |
d5bb081b JB |
7209 | if (IS_IRONLAKE_M(dev)) |
7210 | ironlake_disable_rc6(dev); | |
0cdab21f | 7211 | |
69341a5e KH |
7212 | mutex_unlock(&dev->struct_mutex); |
7213 | ||
6c0d9350 DV |
7214 | /* Disable the irq before mode object teardown, for the irq might |
7215 | * enqueue unpin/hotplug work. */ | |
7216 | drm_irq_uninstall(dev); | |
7217 | cancel_work_sync(&dev_priv->hotplug_work); | |
7218 | ||
3dec0095 DV |
7219 | /* Shut off idle work before the crtcs get freed. */ |
7220 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
7221 | intel_crtc = to_intel_crtc(crtc); | |
7222 | del_timer_sync(&intel_crtc->idle_timer); | |
7223 | } | |
7224 | del_timer_sync(&dev_priv->idle_timer); | |
7225 | cancel_work_sync(&dev_priv->idle_work); | |
7226 | ||
79e53945 JB |
7227 | drm_mode_config_cleanup(dev); |
7228 | } | |
7229 | ||
f1c79df3 ZW |
7230 | /* |
7231 | * Return which encoder is currently attached for connector. | |
7232 | */ | |
df0e9248 | 7233 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 7234 | { |
df0e9248 CW |
7235 | return &intel_attached_encoder(connector)->base; |
7236 | } | |
f1c79df3 | 7237 | |
df0e9248 CW |
7238 | void intel_connector_attach_encoder(struct intel_connector *connector, |
7239 | struct intel_encoder *encoder) | |
7240 | { | |
7241 | connector->encoder = encoder; | |
7242 | drm_mode_connector_attach_encoder(&connector->base, | |
7243 | &encoder->base); | |
79e53945 | 7244 | } |
28d52043 DA |
7245 | |
7246 | /* | |
7247 | * set vga decode state - true == enable VGA decode | |
7248 | */ | |
7249 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
7250 | { | |
7251 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7252 | u16 gmch_ctrl; | |
7253 | ||
7254 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
7255 | if (state) | |
7256 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
7257 | else | |
7258 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
7259 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
7260 | return 0; | |
7261 | } | |
c4a1d9e4 CW |
7262 | |
7263 | #ifdef CONFIG_DEBUG_FS | |
7264 | #include <linux/seq_file.h> | |
7265 | ||
7266 | struct intel_display_error_state { | |
7267 | struct intel_cursor_error_state { | |
7268 | u32 control; | |
7269 | u32 position; | |
7270 | u32 base; | |
7271 | u32 size; | |
7272 | } cursor[2]; | |
7273 | ||
7274 | struct intel_pipe_error_state { | |
7275 | u32 conf; | |
7276 | u32 source; | |
7277 | ||
7278 | u32 htotal; | |
7279 | u32 hblank; | |
7280 | u32 hsync; | |
7281 | u32 vtotal; | |
7282 | u32 vblank; | |
7283 | u32 vsync; | |
7284 | } pipe[2]; | |
7285 | ||
7286 | struct intel_plane_error_state { | |
7287 | u32 control; | |
7288 | u32 stride; | |
7289 | u32 size; | |
7290 | u32 pos; | |
7291 | u32 addr; | |
7292 | u32 surface; | |
7293 | u32 tile_offset; | |
7294 | } plane[2]; | |
7295 | }; | |
7296 | ||
7297 | struct intel_display_error_state * | |
7298 | intel_display_capture_error_state(struct drm_device *dev) | |
7299 | { | |
7300 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7301 | struct intel_display_error_state *error; | |
7302 | int i; | |
7303 | ||
7304 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
7305 | if (error == NULL) | |
7306 | return NULL; | |
7307 | ||
7308 | for (i = 0; i < 2; i++) { | |
7309 | error->cursor[i].control = I915_READ(CURCNTR(i)); | |
7310 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
7311 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
7312 | ||
7313 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
7314 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
7315 | error->plane[i].size = I915_READ(DSPSIZE(i)); | |
7316 | error->plane[i].pos= I915_READ(DSPPOS(i)); | |
7317 | error->plane[i].addr = I915_READ(DSPADDR(i)); | |
7318 | if (INTEL_INFO(dev)->gen >= 4) { | |
7319 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
7320 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
7321 | } | |
7322 | ||
7323 | error->pipe[i].conf = I915_READ(PIPECONF(i)); | |
7324 | error->pipe[i].source = I915_READ(PIPESRC(i)); | |
7325 | error->pipe[i].htotal = I915_READ(HTOTAL(i)); | |
7326 | error->pipe[i].hblank = I915_READ(HBLANK(i)); | |
7327 | error->pipe[i].hsync = I915_READ(HSYNC(i)); | |
7328 | error->pipe[i].vtotal = I915_READ(VTOTAL(i)); | |
7329 | error->pipe[i].vblank = I915_READ(VBLANK(i)); | |
7330 | error->pipe[i].vsync = I915_READ(VSYNC(i)); | |
7331 | } | |
7332 | ||
7333 | return error; | |
7334 | } | |
7335 | ||
7336 | void | |
7337 | intel_display_print_error_state(struct seq_file *m, | |
7338 | struct drm_device *dev, | |
7339 | struct intel_display_error_state *error) | |
7340 | { | |
7341 | int i; | |
7342 | ||
7343 | for (i = 0; i < 2; i++) { | |
7344 | seq_printf(m, "Pipe [%d]:\n", i); | |
7345 | seq_printf(m, " CONF: %08x\n", error->pipe[i].conf); | |
7346 | seq_printf(m, " SRC: %08x\n", error->pipe[i].source); | |
7347 | seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); | |
7348 | seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); | |
7349 | seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); | |
7350 | seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); | |
7351 | seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); | |
7352 | seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); | |
7353 | ||
7354 | seq_printf(m, "Plane [%d]:\n", i); | |
7355 | seq_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
7356 | seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
7357 | seq_printf(m, " SIZE: %08x\n", error->plane[i].size); | |
7358 | seq_printf(m, " POS: %08x\n", error->plane[i].pos); | |
7359 | seq_printf(m, " ADDR: %08x\n", error->plane[i].addr); | |
7360 | if (INTEL_INFO(dev)->gen >= 4) { | |
7361 | seq_printf(m, " SURF: %08x\n", error->plane[i].surface); | |
7362 | seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
7363 | } | |
7364 | ||
7365 | seq_printf(m, "Cursor [%d]:\n", i); | |
7366 | seq_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
7367 | seq_printf(m, " POS: %08x\n", error->cursor[i].position); | |
7368 | seq_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
7369 | } | |
7370 | } | |
7371 | #endif |