]>
Commit | Line | Data |
---|---|---|
79e53945 JB |
1 | /* |
2 | * Copyright © 2006-2007 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
21 | * DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eric Anholt <eric@anholt.net> | |
25 | */ | |
26 | ||
618563e3 | 27 | #include <linux/dmi.h> |
c1c7af60 JB |
28 | #include <linux/module.h> |
29 | #include <linux/input.h> | |
79e53945 | 30 | #include <linux/i2c.h> |
7662c8bd | 31 | #include <linux/kernel.h> |
5a0e3ad6 | 32 | #include <linux/slab.h> |
9cce37f4 | 33 | #include <linux/vgaarb.h> |
e0dac65e | 34 | #include <drm/drm_edid.h> |
760285e7 | 35 | #include <drm/drmP.h> |
79e53945 | 36 | #include "intel_drv.h" |
760285e7 | 37 | #include <drm/i915_drm.h> |
79e53945 | 38 | #include "i915_drv.h" |
e5510fac | 39 | #include "i915_trace.h" |
319c1d42 | 40 | #include <drm/drm_atomic.h> |
c196e1d6 | 41 | #include <drm/drm_atomic_helper.h> |
760285e7 DH |
42 | #include <drm/drm_dp_helper.h> |
43 | #include <drm/drm_crtc_helper.h> | |
465c120c MR |
44 | #include <drm/drm_plane_helper.h> |
45 | #include <drm/drm_rect.h> | |
c0f372b3 | 46 | #include <linux/dma_remapping.h> |
79e53945 | 47 | |
465c120c MR |
48 | /* Primary plane formats supported by all gen */ |
49 | #define COMMON_PRIMARY_FORMATS \ | |
50 | DRM_FORMAT_C8, \ | |
51 | DRM_FORMAT_RGB565, \ | |
52 | DRM_FORMAT_XRGB8888, \ | |
53 | DRM_FORMAT_ARGB8888 | |
54 | ||
55 | /* Primary plane formats for gen <= 3 */ | |
56 | static const uint32_t intel_primary_formats_gen2[] = { | |
57 | COMMON_PRIMARY_FORMATS, | |
58 | DRM_FORMAT_XRGB1555, | |
59 | DRM_FORMAT_ARGB1555, | |
60 | }; | |
61 | ||
62 | /* Primary plane formats for gen >= 4 */ | |
63 | static const uint32_t intel_primary_formats_gen4[] = { | |
64 | COMMON_PRIMARY_FORMATS, \ | |
65 | DRM_FORMAT_XBGR8888, | |
66 | DRM_FORMAT_ABGR8888, | |
67 | DRM_FORMAT_XRGB2101010, | |
68 | DRM_FORMAT_ARGB2101010, | |
69 | DRM_FORMAT_XBGR2101010, | |
70 | DRM_FORMAT_ABGR2101010, | |
71 | }; | |
72 | ||
3d7d6510 MR |
73 | /* Cursor formats */ |
74 | static const uint32_t intel_cursor_formats[] = { | |
75 | DRM_FORMAT_ARGB8888, | |
76 | }; | |
77 | ||
6b383a7f | 78 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
79e53945 | 79 | |
f1f644dc | 80 | static void i9xx_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 81 | struct intel_crtc_state *pipe_config); |
18442d08 | 82 | static void ironlake_pch_clock_get(struct intel_crtc *crtc, |
5cec258b | 83 | struct intel_crtc_state *pipe_config); |
f1f644dc | 84 | |
e7457a9a DL |
85 | static int intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, |
86 | int x, int y, struct drm_framebuffer *old_fb); | |
eb1bfe80 JB |
87 | static int intel_framebuffer_init(struct drm_device *dev, |
88 | struct intel_framebuffer *ifb, | |
89 | struct drm_mode_fb_cmd2 *mode_cmd, | |
90 | struct drm_i915_gem_object *obj); | |
5b18e57c DV |
91 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc); |
92 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc); | |
29407aab | 93 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, |
f769cd24 VK |
94 | struct intel_link_m_n *m_n, |
95 | struct intel_link_m_n *m2_n2); | |
29407aab | 96 | static void ironlake_set_pipeconf(struct drm_crtc *crtc); |
229fca97 DV |
97 | static void haswell_set_pipeconf(struct drm_crtc *crtc); |
98 | static void intel_set_pipe_csc(struct drm_crtc *crtc); | |
d288f65f | 99 | static void vlv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 100 | const struct intel_crtc_state *pipe_config); |
d288f65f | 101 | static void chv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 102 | const struct intel_crtc_state *pipe_config); |
ea2c67bb MR |
103 | static void intel_begin_crtc_commit(struct drm_crtc *crtc); |
104 | static void intel_finish_crtc_commit(struct drm_crtc *crtc); | |
e7457a9a | 105 | |
0e32b39c DA |
106 | static struct intel_encoder *intel_find_encoder(struct intel_connector *connector, int pipe) |
107 | { | |
108 | if (!connector->mst_port) | |
109 | return connector->encoder; | |
110 | else | |
111 | return &connector->mst_port->mst_encoders[pipe]->base; | |
112 | } | |
113 | ||
79e53945 | 114 | typedef struct { |
0206e353 | 115 | int min, max; |
79e53945 JB |
116 | } intel_range_t; |
117 | ||
118 | typedef struct { | |
0206e353 AJ |
119 | int dot_limit; |
120 | int p2_slow, p2_fast; | |
79e53945 JB |
121 | } intel_p2_t; |
122 | ||
d4906093 ML |
123 | typedef struct intel_limit intel_limit_t; |
124 | struct intel_limit { | |
0206e353 AJ |
125 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
126 | intel_p2_t p2; | |
d4906093 | 127 | }; |
79e53945 | 128 | |
d2acd215 DV |
129 | int |
130 | intel_pch_rawclk(struct drm_device *dev) | |
131 | { | |
132 | struct drm_i915_private *dev_priv = dev->dev_private; | |
133 | ||
134 | WARN_ON(!HAS_PCH_SPLIT(dev)); | |
135 | ||
136 | return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK; | |
137 | } | |
138 | ||
021357ac CW |
139 | static inline u32 /* units of 100MHz */ |
140 | intel_fdi_link_freq(struct drm_device *dev) | |
141 | { | |
8b99e68c CW |
142 | if (IS_GEN5(dev)) { |
143 | struct drm_i915_private *dev_priv = dev->dev_private; | |
144 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
145 | } else | |
146 | return 27; | |
021357ac CW |
147 | } |
148 | ||
5d536e28 | 149 | static const intel_limit_t intel_limits_i8xx_dac = { |
0206e353 | 150 | .dot = { .min = 25000, .max = 350000 }, |
9c333719 | 151 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 152 | .n = { .min = 2, .max = 16 }, |
0206e353 AJ |
153 | .m = { .min = 96, .max = 140 }, |
154 | .m1 = { .min = 18, .max = 26 }, | |
155 | .m2 = { .min = 6, .max = 16 }, | |
156 | .p = { .min = 4, .max = 128 }, | |
157 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
158 | .p2 = { .dot_limit = 165000, |
159 | .p2_slow = 4, .p2_fast = 2 }, | |
e4b36699 KP |
160 | }; |
161 | ||
5d536e28 DV |
162 | static const intel_limit_t intel_limits_i8xx_dvo = { |
163 | .dot = { .min = 25000, .max = 350000 }, | |
9c333719 | 164 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 165 | .n = { .min = 2, .max = 16 }, |
5d536e28 DV |
166 | .m = { .min = 96, .max = 140 }, |
167 | .m1 = { .min = 18, .max = 26 }, | |
168 | .m2 = { .min = 6, .max = 16 }, | |
169 | .p = { .min = 4, .max = 128 }, | |
170 | .p1 = { .min = 2, .max = 33 }, | |
171 | .p2 = { .dot_limit = 165000, | |
172 | .p2_slow = 4, .p2_fast = 4 }, | |
173 | }; | |
174 | ||
e4b36699 | 175 | static const intel_limit_t intel_limits_i8xx_lvds = { |
0206e353 | 176 | .dot = { .min = 25000, .max = 350000 }, |
9c333719 | 177 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 178 | .n = { .min = 2, .max = 16 }, |
0206e353 AJ |
179 | .m = { .min = 96, .max = 140 }, |
180 | .m1 = { .min = 18, .max = 26 }, | |
181 | .m2 = { .min = 6, .max = 16 }, | |
182 | .p = { .min = 4, .max = 128 }, | |
183 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
184 | .p2 = { .dot_limit = 165000, |
185 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 | 186 | }; |
273e27ca | 187 | |
e4b36699 | 188 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
189 | .dot = { .min = 20000, .max = 400000 }, |
190 | .vco = { .min = 1400000, .max = 2800000 }, | |
191 | .n = { .min = 1, .max = 6 }, | |
192 | .m = { .min = 70, .max = 120 }, | |
4f7dfb67 PJ |
193 | .m1 = { .min = 8, .max = 18 }, |
194 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
195 | .p = { .min = 5, .max = 80 }, |
196 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
197 | .p2 = { .dot_limit = 200000, |
198 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
199 | }; |
200 | ||
201 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
202 | .dot = { .min = 20000, .max = 400000 }, |
203 | .vco = { .min = 1400000, .max = 2800000 }, | |
204 | .n = { .min = 1, .max = 6 }, | |
205 | .m = { .min = 70, .max = 120 }, | |
53a7d2d1 PJ |
206 | .m1 = { .min = 8, .max = 18 }, |
207 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
208 | .p = { .min = 7, .max = 98 }, |
209 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
210 | .p2 = { .dot_limit = 112000, |
211 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 KP |
212 | }; |
213 | ||
273e27ca | 214 | |
e4b36699 | 215 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
216 | .dot = { .min = 25000, .max = 270000 }, |
217 | .vco = { .min = 1750000, .max = 3500000}, | |
218 | .n = { .min = 1, .max = 4 }, | |
219 | .m = { .min = 104, .max = 138 }, | |
220 | .m1 = { .min = 17, .max = 23 }, | |
221 | .m2 = { .min = 5, .max = 11 }, | |
222 | .p = { .min = 10, .max = 30 }, | |
223 | .p1 = { .min = 1, .max = 3}, | |
224 | .p2 = { .dot_limit = 270000, | |
225 | .p2_slow = 10, | |
226 | .p2_fast = 10 | |
044c7c41 | 227 | }, |
e4b36699 KP |
228 | }; |
229 | ||
230 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
231 | .dot = { .min = 22000, .max = 400000 }, |
232 | .vco = { .min = 1750000, .max = 3500000}, | |
233 | .n = { .min = 1, .max = 4 }, | |
234 | .m = { .min = 104, .max = 138 }, | |
235 | .m1 = { .min = 16, .max = 23 }, | |
236 | .m2 = { .min = 5, .max = 11 }, | |
237 | .p = { .min = 5, .max = 80 }, | |
238 | .p1 = { .min = 1, .max = 8}, | |
239 | .p2 = { .dot_limit = 165000, | |
240 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
241 | }; |
242 | ||
243 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
244 | .dot = { .min = 20000, .max = 115000 }, |
245 | .vco = { .min = 1750000, .max = 3500000 }, | |
246 | .n = { .min = 1, .max = 3 }, | |
247 | .m = { .min = 104, .max = 138 }, | |
248 | .m1 = { .min = 17, .max = 23 }, | |
249 | .m2 = { .min = 5, .max = 11 }, | |
250 | .p = { .min = 28, .max = 112 }, | |
251 | .p1 = { .min = 2, .max = 8 }, | |
252 | .p2 = { .dot_limit = 0, | |
253 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 254 | }, |
e4b36699 KP |
255 | }; |
256 | ||
257 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
258 | .dot = { .min = 80000, .max = 224000 }, |
259 | .vco = { .min = 1750000, .max = 3500000 }, | |
260 | .n = { .min = 1, .max = 3 }, | |
261 | .m = { .min = 104, .max = 138 }, | |
262 | .m1 = { .min = 17, .max = 23 }, | |
263 | .m2 = { .min = 5, .max = 11 }, | |
264 | .p = { .min = 14, .max = 42 }, | |
265 | .p1 = { .min = 2, .max = 6 }, | |
266 | .p2 = { .dot_limit = 0, | |
267 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 268 | }, |
e4b36699 KP |
269 | }; |
270 | ||
f2b115e6 | 271 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
272 | .dot = { .min = 20000, .max = 400000}, |
273 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 274 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
275 | .n = { .min = 3, .max = 6 }, |
276 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 277 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
278 | .m1 = { .min = 0, .max = 0 }, |
279 | .m2 = { .min = 0, .max = 254 }, | |
280 | .p = { .min = 5, .max = 80 }, | |
281 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
282 | .p2 = { .dot_limit = 200000, |
283 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
284 | }; |
285 | ||
f2b115e6 | 286 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
287 | .dot = { .min = 20000, .max = 400000 }, |
288 | .vco = { .min = 1700000, .max = 3500000 }, | |
289 | .n = { .min = 3, .max = 6 }, | |
290 | .m = { .min = 2, .max = 256 }, | |
291 | .m1 = { .min = 0, .max = 0 }, | |
292 | .m2 = { .min = 0, .max = 254 }, | |
293 | .p = { .min = 7, .max = 112 }, | |
294 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
295 | .p2 = { .dot_limit = 112000, |
296 | .p2_slow = 14, .p2_fast = 14 }, | |
e4b36699 KP |
297 | }; |
298 | ||
273e27ca EA |
299 | /* Ironlake / Sandybridge |
300 | * | |
301 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
302 | * the range value for them is (actual_value - 2). | |
303 | */ | |
b91ad0ec | 304 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
305 | .dot = { .min = 25000, .max = 350000 }, |
306 | .vco = { .min = 1760000, .max = 3510000 }, | |
307 | .n = { .min = 1, .max = 5 }, | |
308 | .m = { .min = 79, .max = 127 }, | |
309 | .m1 = { .min = 12, .max = 22 }, | |
310 | .m2 = { .min = 5, .max = 9 }, | |
311 | .p = { .min = 5, .max = 80 }, | |
312 | .p1 = { .min = 1, .max = 8 }, | |
313 | .p2 = { .dot_limit = 225000, | |
314 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
315 | }; |
316 | ||
b91ad0ec | 317 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
318 | .dot = { .min = 25000, .max = 350000 }, |
319 | .vco = { .min = 1760000, .max = 3510000 }, | |
320 | .n = { .min = 1, .max = 3 }, | |
321 | .m = { .min = 79, .max = 118 }, | |
322 | .m1 = { .min = 12, .max = 22 }, | |
323 | .m2 = { .min = 5, .max = 9 }, | |
324 | .p = { .min = 28, .max = 112 }, | |
325 | .p1 = { .min = 2, .max = 8 }, | |
326 | .p2 = { .dot_limit = 225000, | |
327 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
328 | }; |
329 | ||
330 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
331 | .dot = { .min = 25000, .max = 350000 }, |
332 | .vco = { .min = 1760000, .max = 3510000 }, | |
333 | .n = { .min = 1, .max = 3 }, | |
334 | .m = { .min = 79, .max = 127 }, | |
335 | .m1 = { .min = 12, .max = 22 }, | |
336 | .m2 = { .min = 5, .max = 9 }, | |
337 | .p = { .min = 14, .max = 56 }, | |
338 | .p1 = { .min = 2, .max = 8 }, | |
339 | .p2 = { .dot_limit = 225000, | |
340 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
341 | }; |
342 | ||
273e27ca | 343 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 344 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
345 | .dot = { .min = 25000, .max = 350000 }, |
346 | .vco = { .min = 1760000, .max = 3510000 }, | |
347 | .n = { .min = 1, .max = 2 }, | |
348 | .m = { .min = 79, .max = 126 }, | |
349 | .m1 = { .min = 12, .max = 22 }, | |
350 | .m2 = { .min = 5, .max = 9 }, | |
351 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 352 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
353 | .p2 = { .dot_limit = 225000, |
354 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
355 | }; |
356 | ||
357 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
358 | .dot = { .min = 25000, .max = 350000 }, |
359 | .vco = { .min = 1760000, .max = 3510000 }, | |
360 | .n = { .min = 1, .max = 3 }, | |
361 | .m = { .min = 79, .max = 126 }, | |
362 | .m1 = { .min = 12, .max = 22 }, | |
363 | .m2 = { .min = 5, .max = 9 }, | |
364 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 365 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
366 | .p2 = { .dot_limit = 225000, |
367 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
368 | }; |
369 | ||
dc730512 | 370 | static const intel_limit_t intel_limits_vlv = { |
f01b7962 VS |
371 | /* |
372 | * These are the data rate limits (measured in fast clocks) | |
373 | * since those are the strictest limits we have. The fast | |
374 | * clock and actual rate limits are more relaxed, so checking | |
375 | * them would make no difference. | |
376 | */ | |
377 | .dot = { .min = 25000 * 5, .max = 270000 * 5 }, | |
75e53986 | 378 | .vco = { .min = 4000000, .max = 6000000 }, |
a0c4da24 | 379 | .n = { .min = 1, .max = 7 }, |
a0c4da24 JB |
380 | .m1 = { .min = 2, .max = 3 }, |
381 | .m2 = { .min = 11, .max = 156 }, | |
b99ab663 | 382 | .p1 = { .min = 2, .max = 3 }, |
5fdc9c49 | 383 | .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */ |
a0c4da24 JB |
384 | }; |
385 | ||
ef9348c8 CML |
386 | static const intel_limit_t intel_limits_chv = { |
387 | /* | |
388 | * These are the data rate limits (measured in fast clocks) | |
389 | * since those are the strictest limits we have. The fast | |
390 | * clock and actual rate limits are more relaxed, so checking | |
391 | * them would make no difference. | |
392 | */ | |
393 | .dot = { .min = 25000 * 5, .max = 540000 * 5}, | |
17fe1021 | 394 | .vco = { .min = 4800000, .max = 6480000 }, |
ef9348c8 CML |
395 | .n = { .min = 1, .max = 1 }, |
396 | .m1 = { .min = 2, .max = 2 }, | |
397 | .m2 = { .min = 24 << 22, .max = 175 << 22 }, | |
398 | .p1 = { .min = 2, .max = 4 }, | |
399 | .p2 = { .p2_slow = 1, .p2_fast = 14 }, | |
400 | }; | |
401 | ||
6b4bf1c4 VS |
402 | static void vlv_clock(int refclk, intel_clock_t *clock) |
403 | { | |
404 | clock->m = clock->m1 * clock->m2; | |
405 | clock->p = clock->p1 * clock->p2; | |
ed5ca77e VS |
406 | if (WARN_ON(clock->n == 0 || clock->p == 0)) |
407 | return; | |
fb03ac01 VS |
408 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); |
409 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
6b4bf1c4 VS |
410 | } |
411 | ||
e0638cdf PZ |
412 | /** |
413 | * Returns whether any output on the specified pipe is of the specified type | |
414 | */ | |
4093561b | 415 | bool intel_pipe_has_type(struct intel_crtc *crtc, enum intel_output_type type) |
e0638cdf | 416 | { |
409ee761 | 417 | struct drm_device *dev = crtc->base.dev; |
e0638cdf PZ |
418 | struct intel_encoder *encoder; |
419 | ||
409ee761 | 420 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
e0638cdf PZ |
421 | if (encoder->type == type) |
422 | return true; | |
423 | ||
424 | return false; | |
425 | } | |
426 | ||
d0737e1d ACO |
427 | /** |
428 | * Returns whether any output on the specified pipe will have the specified | |
429 | * type after a staged modeset is complete, i.e., the same as | |
430 | * intel_pipe_has_type() but looking at encoder->new_crtc instead of | |
431 | * encoder->crtc. | |
432 | */ | |
433 | static bool intel_pipe_will_have_type(struct intel_crtc *crtc, int type) | |
434 | { | |
435 | struct drm_device *dev = crtc->base.dev; | |
436 | struct intel_encoder *encoder; | |
437 | ||
438 | for_each_intel_encoder(dev, encoder) | |
439 | if (encoder->new_crtc == crtc && encoder->type == type) | |
440 | return true; | |
441 | ||
442 | return false; | |
443 | } | |
444 | ||
409ee761 | 445 | static const intel_limit_t *intel_ironlake_limit(struct intel_crtc *crtc, |
1b894b59 | 446 | int refclk) |
2c07245f | 447 | { |
409ee761 | 448 | struct drm_device *dev = crtc->base.dev; |
2c07245f | 449 | const intel_limit_t *limit; |
b91ad0ec | 450 | |
d0737e1d | 451 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS)) { |
1974cad0 | 452 | if (intel_is_dual_link_lvds(dev)) { |
1b894b59 | 453 | if (refclk == 100000) |
b91ad0ec ZW |
454 | limit = &intel_limits_ironlake_dual_lvds_100m; |
455 | else | |
456 | limit = &intel_limits_ironlake_dual_lvds; | |
457 | } else { | |
1b894b59 | 458 | if (refclk == 100000) |
b91ad0ec ZW |
459 | limit = &intel_limits_ironlake_single_lvds_100m; |
460 | else | |
461 | limit = &intel_limits_ironlake_single_lvds; | |
462 | } | |
c6bb3538 | 463 | } else |
b91ad0ec | 464 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
465 | |
466 | return limit; | |
467 | } | |
468 | ||
409ee761 | 469 | static const intel_limit_t *intel_g4x_limit(struct intel_crtc *crtc) |
044c7c41 | 470 | { |
409ee761 | 471 | struct drm_device *dev = crtc->base.dev; |
044c7c41 ML |
472 | const intel_limit_t *limit; |
473 | ||
d0737e1d | 474 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS)) { |
1974cad0 | 475 | if (intel_is_dual_link_lvds(dev)) |
e4b36699 | 476 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 | 477 | else |
e4b36699 | 478 | limit = &intel_limits_g4x_single_channel_lvds; |
d0737e1d ACO |
479 | } else if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_HDMI) || |
480 | intel_pipe_will_have_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 481 | limit = &intel_limits_g4x_hdmi; |
d0737e1d | 482 | } else if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 483 | limit = &intel_limits_g4x_sdvo; |
044c7c41 | 484 | } else /* The option is for other outputs */ |
e4b36699 | 485 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
486 | |
487 | return limit; | |
488 | } | |
489 | ||
409ee761 | 490 | static const intel_limit_t *intel_limit(struct intel_crtc *crtc, int refclk) |
79e53945 | 491 | { |
409ee761 | 492 | struct drm_device *dev = crtc->base.dev; |
79e53945 JB |
493 | const intel_limit_t *limit; |
494 | ||
bad720ff | 495 | if (HAS_PCH_SPLIT(dev)) |
1b894b59 | 496 | limit = intel_ironlake_limit(crtc, refclk); |
2c07245f | 497 | else if (IS_G4X(dev)) { |
044c7c41 | 498 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 499 | } else if (IS_PINEVIEW(dev)) { |
d0737e1d | 500 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 501 | limit = &intel_limits_pineview_lvds; |
2177832f | 502 | else |
f2b115e6 | 503 | limit = &intel_limits_pineview_sdvo; |
ef9348c8 CML |
504 | } else if (IS_CHERRYVIEW(dev)) { |
505 | limit = &intel_limits_chv; | |
a0c4da24 | 506 | } else if (IS_VALLEYVIEW(dev)) { |
dc730512 | 507 | limit = &intel_limits_vlv; |
a6c45cf0 | 508 | } else if (!IS_GEN2(dev)) { |
d0737e1d | 509 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS)) |
a6c45cf0 CW |
510 | limit = &intel_limits_i9xx_lvds; |
511 | else | |
512 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 | 513 | } else { |
d0737e1d | 514 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS)) |
e4b36699 | 515 | limit = &intel_limits_i8xx_lvds; |
d0737e1d | 516 | else if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_DVO)) |
e4b36699 | 517 | limit = &intel_limits_i8xx_dvo; |
5d536e28 DV |
518 | else |
519 | limit = &intel_limits_i8xx_dac; | |
79e53945 JB |
520 | } |
521 | return limit; | |
522 | } | |
523 | ||
f2b115e6 AJ |
524 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
525 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 526 | { |
2177832f SL |
527 | clock->m = clock->m2 + 2; |
528 | clock->p = clock->p1 * clock->p2; | |
ed5ca77e VS |
529 | if (WARN_ON(clock->n == 0 || clock->p == 0)) |
530 | return; | |
fb03ac01 VS |
531 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); |
532 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
2177832f SL |
533 | } |
534 | ||
7429e9d4 DV |
535 | static uint32_t i9xx_dpll_compute_m(struct dpll *dpll) |
536 | { | |
537 | return 5 * (dpll->m1 + 2) + (dpll->m2 + 2); | |
538 | } | |
539 | ||
ac58c3f0 | 540 | static void i9xx_clock(int refclk, intel_clock_t *clock) |
2177832f | 541 | { |
7429e9d4 | 542 | clock->m = i9xx_dpll_compute_m(clock); |
79e53945 | 543 | clock->p = clock->p1 * clock->p2; |
ed5ca77e VS |
544 | if (WARN_ON(clock->n + 2 == 0 || clock->p == 0)) |
545 | return; | |
fb03ac01 VS |
546 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2); |
547 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
79e53945 JB |
548 | } |
549 | ||
ef9348c8 CML |
550 | static void chv_clock(int refclk, intel_clock_t *clock) |
551 | { | |
552 | clock->m = clock->m1 * clock->m2; | |
553 | clock->p = clock->p1 * clock->p2; | |
554 | if (WARN_ON(clock->n == 0 || clock->p == 0)) | |
555 | return; | |
556 | clock->vco = DIV_ROUND_CLOSEST_ULL((uint64_t)refclk * clock->m, | |
557 | clock->n << 22); | |
558 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
559 | } | |
560 | ||
7c04d1d9 | 561 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
562 | /** |
563 | * Returns whether the given set of divisors are valid for a given refclk with | |
564 | * the given connectors. | |
565 | */ | |
566 | ||
1b894b59 CW |
567 | static bool intel_PLL_is_valid(struct drm_device *dev, |
568 | const intel_limit_t *limit, | |
569 | const intel_clock_t *clock) | |
79e53945 | 570 | { |
f01b7962 VS |
571 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
572 | INTELPllInvalid("n out of range\n"); | |
79e53945 | 573 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 574 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 575 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 576 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 577 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 578 | INTELPllInvalid("m1 out of range\n"); |
f01b7962 VS |
579 | |
580 | if (!IS_PINEVIEW(dev) && !IS_VALLEYVIEW(dev)) | |
581 | if (clock->m1 <= clock->m2) | |
582 | INTELPllInvalid("m1 <= m2\n"); | |
583 | ||
584 | if (!IS_VALLEYVIEW(dev)) { | |
585 | if (clock->p < limit->p.min || limit->p.max < clock->p) | |
586 | INTELPllInvalid("p out of range\n"); | |
587 | if (clock->m < limit->m.min || limit->m.max < clock->m) | |
588 | INTELPllInvalid("m out of range\n"); | |
589 | } | |
590 | ||
79e53945 | 591 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 592 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
593 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
594 | * connector, etc., rather than just a single range. | |
595 | */ | |
596 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 597 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
598 | |
599 | return true; | |
600 | } | |
601 | ||
d4906093 | 602 | static bool |
a919ff14 | 603 | i9xx_find_best_dpll(const intel_limit_t *limit, struct intel_crtc *crtc, |
cec2f356 SP |
604 | int target, int refclk, intel_clock_t *match_clock, |
605 | intel_clock_t *best_clock) | |
79e53945 | 606 | { |
a919ff14 | 607 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 608 | intel_clock_t clock; |
79e53945 JB |
609 | int err = target; |
610 | ||
d0737e1d | 611 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS)) { |
79e53945 | 612 | /* |
a210b028 DV |
613 | * For LVDS just rely on its current settings for dual-channel. |
614 | * We haven't figured out how to reliably set up different | |
615 | * single/dual channel state, if we even can. | |
79e53945 | 616 | */ |
1974cad0 | 617 | if (intel_is_dual_link_lvds(dev)) |
79e53945 JB |
618 | clock.p2 = limit->p2.p2_fast; |
619 | else | |
620 | clock.p2 = limit->p2.p2_slow; | |
621 | } else { | |
622 | if (target < limit->p2.dot_limit) | |
623 | clock.p2 = limit->p2.p2_slow; | |
624 | else | |
625 | clock.p2 = limit->p2.p2_fast; | |
626 | } | |
627 | ||
0206e353 | 628 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 629 | |
42158660 ZY |
630 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
631 | clock.m1++) { | |
632 | for (clock.m2 = limit->m2.min; | |
633 | clock.m2 <= limit->m2.max; clock.m2++) { | |
c0efc387 | 634 | if (clock.m2 >= clock.m1) |
42158660 ZY |
635 | break; |
636 | for (clock.n = limit->n.min; | |
637 | clock.n <= limit->n.max; clock.n++) { | |
638 | for (clock.p1 = limit->p1.min; | |
639 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
640 | int this_err; |
641 | ||
ac58c3f0 DV |
642 | i9xx_clock(refclk, &clock); |
643 | if (!intel_PLL_is_valid(dev, limit, | |
644 | &clock)) | |
645 | continue; | |
646 | if (match_clock && | |
647 | clock.p != match_clock->p) | |
648 | continue; | |
649 | ||
650 | this_err = abs(clock.dot - target); | |
651 | if (this_err < err) { | |
652 | *best_clock = clock; | |
653 | err = this_err; | |
654 | } | |
655 | } | |
656 | } | |
657 | } | |
658 | } | |
659 | ||
660 | return (err != target); | |
661 | } | |
662 | ||
663 | static bool | |
a919ff14 | 664 | pnv_find_best_dpll(const intel_limit_t *limit, struct intel_crtc *crtc, |
ee9300bb DV |
665 | int target, int refclk, intel_clock_t *match_clock, |
666 | intel_clock_t *best_clock) | |
79e53945 | 667 | { |
a919ff14 | 668 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 669 | intel_clock_t clock; |
79e53945 JB |
670 | int err = target; |
671 | ||
d0737e1d | 672 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS)) { |
79e53945 | 673 | /* |
a210b028 DV |
674 | * For LVDS just rely on its current settings for dual-channel. |
675 | * We haven't figured out how to reliably set up different | |
676 | * single/dual channel state, if we even can. | |
79e53945 | 677 | */ |
1974cad0 | 678 | if (intel_is_dual_link_lvds(dev)) |
79e53945 JB |
679 | clock.p2 = limit->p2.p2_fast; |
680 | else | |
681 | clock.p2 = limit->p2.p2_slow; | |
682 | } else { | |
683 | if (target < limit->p2.dot_limit) | |
684 | clock.p2 = limit->p2.p2_slow; | |
685 | else | |
686 | clock.p2 = limit->p2.p2_fast; | |
687 | } | |
688 | ||
0206e353 | 689 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 690 | |
42158660 ZY |
691 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
692 | clock.m1++) { | |
693 | for (clock.m2 = limit->m2.min; | |
694 | clock.m2 <= limit->m2.max; clock.m2++) { | |
42158660 ZY |
695 | for (clock.n = limit->n.min; |
696 | clock.n <= limit->n.max; clock.n++) { | |
697 | for (clock.p1 = limit->p1.min; | |
698 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
699 | int this_err; |
700 | ||
ac58c3f0 | 701 | pineview_clock(refclk, &clock); |
1b894b59 CW |
702 | if (!intel_PLL_is_valid(dev, limit, |
703 | &clock)) | |
79e53945 | 704 | continue; |
cec2f356 SP |
705 | if (match_clock && |
706 | clock.p != match_clock->p) | |
707 | continue; | |
79e53945 JB |
708 | |
709 | this_err = abs(clock.dot - target); | |
710 | if (this_err < err) { | |
711 | *best_clock = clock; | |
712 | err = this_err; | |
713 | } | |
714 | } | |
715 | } | |
716 | } | |
717 | } | |
718 | ||
719 | return (err != target); | |
720 | } | |
721 | ||
d4906093 | 722 | static bool |
a919ff14 | 723 | g4x_find_best_dpll(const intel_limit_t *limit, struct intel_crtc *crtc, |
ee9300bb DV |
724 | int target, int refclk, intel_clock_t *match_clock, |
725 | intel_clock_t *best_clock) | |
d4906093 | 726 | { |
a919ff14 | 727 | struct drm_device *dev = crtc->base.dev; |
d4906093 ML |
728 | intel_clock_t clock; |
729 | int max_n; | |
730 | bool found; | |
6ba770dc AJ |
731 | /* approximately equals target * 0.00585 */ |
732 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
733 | found = false; |
734 | ||
d0737e1d | 735 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS)) { |
1974cad0 | 736 | if (intel_is_dual_link_lvds(dev)) |
d4906093 ML |
737 | clock.p2 = limit->p2.p2_fast; |
738 | else | |
739 | clock.p2 = limit->p2.p2_slow; | |
740 | } else { | |
741 | if (target < limit->p2.dot_limit) | |
742 | clock.p2 = limit->p2.p2_slow; | |
743 | else | |
744 | clock.p2 = limit->p2.p2_fast; | |
745 | } | |
746 | ||
747 | memset(best_clock, 0, sizeof(*best_clock)); | |
748 | max_n = limit->n.max; | |
f77f13e2 | 749 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 750 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 751 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
752 | for (clock.m1 = limit->m1.max; |
753 | clock.m1 >= limit->m1.min; clock.m1--) { | |
754 | for (clock.m2 = limit->m2.max; | |
755 | clock.m2 >= limit->m2.min; clock.m2--) { | |
756 | for (clock.p1 = limit->p1.max; | |
757 | clock.p1 >= limit->p1.min; clock.p1--) { | |
758 | int this_err; | |
759 | ||
ac58c3f0 | 760 | i9xx_clock(refclk, &clock); |
1b894b59 CW |
761 | if (!intel_PLL_is_valid(dev, limit, |
762 | &clock)) | |
d4906093 | 763 | continue; |
1b894b59 CW |
764 | |
765 | this_err = abs(clock.dot - target); | |
d4906093 ML |
766 | if (this_err < err_most) { |
767 | *best_clock = clock; | |
768 | err_most = this_err; | |
769 | max_n = clock.n; | |
770 | found = true; | |
771 | } | |
772 | } | |
773 | } | |
774 | } | |
775 | } | |
2c07245f ZW |
776 | return found; |
777 | } | |
778 | ||
a0c4da24 | 779 | static bool |
a919ff14 | 780 | vlv_find_best_dpll(const intel_limit_t *limit, struct intel_crtc *crtc, |
ee9300bb DV |
781 | int target, int refclk, intel_clock_t *match_clock, |
782 | intel_clock_t *best_clock) | |
a0c4da24 | 783 | { |
a919ff14 | 784 | struct drm_device *dev = crtc->base.dev; |
6b4bf1c4 | 785 | intel_clock_t clock; |
69e4f900 | 786 | unsigned int bestppm = 1000000; |
27e639bf VS |
787 | /* min update 19.2 MHz */ |
788 | int max_n = min(limit->n.max, refclk / 19200); | |
49e497ef | 789 | bool found = false; |
a0c4da24 | 790 | |
6b4bf1c4 VS |
791 | target *= 5; /* fast clock */ |
792 | ||
793 | memset(best_clock, 0, sizeof(*best_clock)); | |
a0c4da24 JB |
794 | |
795 | /* based on hardware requirement, prefer smaller n to precision */ | |
27e639bf | 796 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
811bbf05 | 797 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { |
889059d8 | 798 | for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow; |
c1a9ae43 | 799 | clock.p2 -= clock.p2 > 10 ? 2 : 1) { |
6b4bf1c4 | 800 | clock.p = clock.p1 * clock.p2; |
a0c4da24 | 801 | /* based on hardware requirement, prefer bigger m1,m2 values */ |
6b4bf1c4 | 802 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) { |
69e4f900 VS |
803 | unsigned int ppm, diff; |
804 | ||
6b4bf1c4 VS |
805 | clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n, |
806 | refclk * clock.m1); | |
807 | ||
808 | vlv_clock(refclk, &clock); | |
43b0ac53 | 809 | |
f01b7962 VS |
810 | if (!intel_PLL_is_valid(dev, limit, |
811 | &clock)) | |
43b0ac53 VS |
812 | continue; |
813 | ||
6b4bf1c4 VS |
814 | diff = abs(clock.dot - target); |
815 | ppm = div_u64(1000000ULL * diff, target); | |
816 | ||
817 | if (ppm < 100 && clock.p > best_clock->p) { | |
43b0ac53 | 818 | bestppm = 0; |
6b4bf1c4 | 819 | *best_clock = clock; |
49e497ef | 820 | found = true; |
43b0ac53 | 821 | } |
6b4bf1c4 | 822 | |
c686122c | 823 | if (bestppm >= 10 && ppm < bestppm - 10) { |
69e4f900 | 824 | bestppm = ppm; |
6b4bf1c4 | 825 | *best_clock = clock; |
49e497ef | 826 | found = true; |
a0c4da24 JB |
827 | } |
828 | } | |
829 | } | |
830 | } | |
831 | } | |
a0c4da24 | 832 | |
49e497ef | 833 | return found; |
a0c4da24 | 834 | } |
a4fc5ed6 | 835 | |
ef9348c8 | 836 | static bool |
a919ff14 | 837 | chv_find_best_dpll(const intel_limit_t *limit, struct intel_crtc *crtc, |
ef9348c8 CML |
838 | int target, int refclk, intel_clock_t *match_clock, |
839 | intel_clock_t *best_clock) | |
840 | { | |
a919ff14 | 841 | struct drm_device *dev = crtc->base.dev; |
ef9348c8 CML |
842 | intel_clock_t clock; |
843 | uint64_t m2; | |
844 | int found = false; | |
845 | ||
846 | memset(best_clock, 0, sizeof(*best_clock)); | |
847 | ||
848 | /* | |
849 | * Based on hardware doc, the n always set to 1, and m1 always | |
850 | * set to 2. If requires to support 200Mhz refclk, we need to | |
851 | * revisit this because n may not 1 anymore. | |
852 | */ | |
853 | clock.n = 1, clock.m1 = 2; | |
854 | target *= 5; /* fast clock */ | |
855 | ||
856 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { | |
857 | for (clock.p2 = limit->p2.p2_fast; | |
858 | clock.p2 >= limit->p2.p2_slow; | |
859 | clock.p2 -= clock.p2 > 10 ? 2 : 1) { | |
860 | ||
861 | clock.p = clock.p1 * clock.p2; | |
862 | ||
863 | m2 = DIV_ROUND_CLOSEST_ULL(((uint64_t)target * clock.p * | |
864 | clock.n) << 22, refclk * clock.m1); | |
865 | ||
866 | if (m2 > INT_MAX/clock.m1) | |
867 | continue; | |
868 | ||
869 | clock.m2 = m2; | |
870 | ||
871 | chv_clock(refclk, &clock); | |
872 | ||
873 | if (!intel_PLL_is_valid(dev, limit, &clock)) | |
874 | continue; | |
875 | ||
876 | /* based on hardware requirement, prefer bigger p | |
877 | */ | |
878 | if (clock.p > best_clock->p) { | |
879 | *best_clock = clock; | |
880 | found = true; | |
881 | } | |
882 | } | |
883 | } | |
884 | ||
885 | return found; | |
886 | } | |
887 | ||
20ddf665 VS |
888 | bool intel_crtc_active(struct drm_crtc *crtc) |
889 | { | |
890 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
891 | ||
892 | /* Be paranoid as we can arrive here with only partial | |
893 | * state retrieved from the hardware during setup. | |
894 | * | |
241bfc38 | 895 | * We can ditch the adjusted_mode.crtc_clock check as soon |
20ddf665 VS |
896 | * as Haswell has gained clock readout/fastboot support. |
897 | * | |
66e514c1 | 898 | * We can ditch the crtc->primary->fb check as soon as we can |
20ddf665 | 899 | * properly reconstruct framebuffers. |
c3d1f436 MR |
900 | * |
901 | * FIXME: The intel_crtc->active here should be switched to | |
902 | * crtc->state->active once we have proper CRTC states wired up | |
903 | * for atomic. | |
20ddf665 | 904 | */ |
c3d1f436 | 905 | return intel_crtc->active && crtc->primary->state->fb && |
6e3c9717 | 906 | intel_crtc->config->base.adjusted_mode.crtc_clock; |
20ddf665 VS |
907 | } |
908 | ||
a5c961d1 PZ |
909 | enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv, |
910 | enum pipe pipe) | |
911 | { | |
912 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
913 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
914 | ||
6e3c9717 | 915 | return intel_crtc->config->cpu_transcoder; |
a5c961d1 PZ |
916 | } |
917 | ||
fbf49ea2 VS |
918 | static bool pipe_dsl_stopped(struct drm_device *dev, enum pipe pipe) |
919 | { | |
920 | struct drm_i915_private *dev_priv = dev->dev_private; | |
921 | u32 reg = PIPEDSL(pipe); | |
922 | u32 line1, line2; | |
923 | u32 line_mask; | |
924 | ||
925 | if (IS_GEN2(dev)) | |
926 | line_mask = DSL_LINEMASK_GEN2; | |
927 | else | |
928 | line_mask = DSL_LINEMASK_GEN3; | |
929 | ||
930 | line1 = I915_READ(reg) & line_mask; | |
931 | mdelay(5); | |
932 | line2 = I915_READ(reg) & line_mask; | |
933 | ||
934 | return line1 == line2; | |
935 | } | |
936 | ||
ab7ad7f6 KP |
937 | /* |
938 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
575f7ab7 | 939 | * @crtc: crtc whose pipe to wait for |
9d0498a2 JB |
940 | * |
941 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
942 | * spinning on the vblank interrupt status bit, since we won't actually | |
943 | * see an interrupt when the pipe is disabled. | |
944 | * | |
ab7ad7f6 KP |
945 | * On Gen4 and above: |
946 | * wait for the pipe register state bit to turn off | |
947 | * | |
948 | * Otherwise: | |
949 | * wait for the display line value to settle (it usually | |
950 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 951 | * |
9d0498a2 | 952 | */ |
575f7ab7 | 953 | static void intel_wait_for_pipe_off(struct intel_crtc *crtc) |
9d0498a2 | 954 | { |
575f7ab7 | 955 | struct drm_device *dev = crtc->base.dev; |
9d0498a2 | 956 | struct drm_i915_private *dev_priv = dev->dev_private; |
6e3c9717 | 957 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
575f7ab7 | 958 | enum pipe pipe = crtc->pipe; |
ab7ad7f6 KP |
959 | |
960 | if (INTEL_INFO(dev)->gen >= 4) { | |
702e7a56 | 961 | int reg = PIPECONF(cpu_transcoder); |
ab7ad7f6 KP |
962 | |
963 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
964 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
965 | 100)) | |
284637d9 | 966 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 967 | } else { |
ab7ad7f6 | 968 | /* Wait for the display line to settle */ |
fbf49ea2 | 969 | if (wait_for(pipe_dsl_stopped(dev, pipe), 100)) |
284637d9 | 970 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 971 | } |
79e53945 JB |
972 | } |
973 | ||
b0ea7d37 DL |
974 | /* |
975 | * ibx_digital_port_connected - is the specified port connected? | |
976 | * @dev_priv: i915 private structure | |
977 | * @port: the port to test | |
978 | * | |
979 | * Returns true if @port is connected, false otherwise. | |
980 | */ | |
981 | bool ibx_digital_port_connected(struct drm_i915_private *dev_priv, | |
982 | struct intel_digital_port *port) | |
983 | { | |
984 | u32 bit; | |
985 | ||
c36346e3 | 986 | if (HAS_PCH_IBX(dev_priv->dev)) { |
eba905b2 | 987 | switch (port->port) { |
c36346e3 DL |
988 | case PORT_B: |
989 | bit = SDE_PORTB_HOTPLUG; | |
990 | break; | |
991 | case PORT_C: | |
992 | bit = SDE_PORTC_HOTPLUG; | |
993 | break; | |
994 | case PORT_D: | |
995 | bit = SDE_PORTD_HOTPLUG; | |
996 | break; | |
997 | default: | |
998 | return true; | |
999 | } | |
1000 | } else { | |
eba905b2 | 1001 | switch (port->port) { |
c36346e3 DL |
1002 | case PORT_B: |
1003 | bit = SDE_PORTB_HOTPLUG_CPT; | |
1004 | break; | |
1005 | case PORT_C: | |
1006 | bit = SDE_PORTC_HOTPLUG_CPT; | |
1007 | break; | |
1008 | case PORT_D: | |
1009 | bit = SDE_PORTD_HOTPLUG_CPT; | |
1010 | break; | |
1011 | default: | |
1012 | return true; | |
1013 | } | |
b0ea7d37 DL |
1014 | } |
1015 | ||
1016 | return I915_READ(SDEISR) & bit; | |
1017 | } | |
1018 | ||
b24e7179 JB |
1019 | static const char *state_string(bool enabled) |
1020 | { | |
1021 | return enabled ? "on" : "off"; | |
1022 | } | |
1023 | ||
1024 | /* Only for pre-ILK configs */ | |
55607e8a DV |
1025 | void assert_pll(struct drm_i915_private *dev_priv, |
1026 | enum pipe pipe, bool state) | |
b24e7179 JB |
1027 | { |
1028 | int reg; | |
1029 | u32 val; | |
1030 | bool cur_state; | |
1031 | ||
1032 | reg = DPLL(pipe); | |
1033 | val = I915_READ(reg); | |
1034 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
e2c719b7 | 1035 | I915_STATE_WARN(cur_state != state, |
b24e7179 JB |
1036 | "PLL state assertion failure (expected %s, current %s)\n", |
1037 | state_string(state), state_string(cur_state)); | |
1038 | } | |
b24e7179 | 1039 | |
23538ef1 JN |
1040 | /* XXX: the dsi pll is shared between MIPI DSI ports */ |
1041 | static void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state) | |
1042 | { | |
1043 | u32 val; | |
1044 | bool cur_state; | |
1045 | ||
1046 | mutex_lock(&dev_priv->dpio_lock); | |
1047 | val = vlv_cck_read(dev_priv, CCK_REG_DSI_PLL_CONTROL); | |
1048 | mutex_unlock(&dev_priv->dpio_lock); | |
1049 | ||
1050 | cur_state = val & DSI_PLL_VCO_EN; | |
e2c719b7 | 1051 | I915_STATE_WARN(cur_state != state, |
23538ef1 JN |
1052 | "DSI PLL state assertion failure (expected %s, current %s)\n", |
1053 | state_string(state), state_string(cur_state)); | |
1054 | } | |
1055 | #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true) | |
1056 | #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false) | |
1057 | ||
55607e8a | 1058 | struct intel_shared_dpll * |
e2b78267 DV |
1059 | intel_crtc_to_shared_dpll(struct intel_crtc *crtc) |
1060 | { | |
1061 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
1062 | ||
6e3c9717 | 1063 | if (crtc->config->shared_dpll < 0) |
e2b78267 DV |
1064 | return NULL; |
1065 | ||
6e3c9717 | 1066 | return &dev_priv->shared_dplls[crtc->config->shared_dpll]; |
e2b78267 DV |
1067 | } |
1068 | ||
040484af | 1069 | /* For ILK+ */ |
55607e8a DV |
1070 | void assert_shared_dpll(struct drm_i915_private *dev_priv, |
1071 | struct intel_shared_dpll *pll, | |
1072 | bool state) | |
040484af | 1073 | { |
040484af | 1074 | bool cur_state; |
5358901f | 1075 | struct intel_dpll_hw_state hw_state; |
040484af | 1076 | |
92b27b08 | 1077 | if (WARN (!pll, |
46edb027 | 1078 | "asserting DPLL %s with no DPLL\n", state_string(state))) |
ee7b9f93 | 1079 | return; |
ee7b9f93 | 1080 | |
5358901f | 1081 | cur_state = pll->get_hw_state(dev_priv, pll, &hw_state); |
e2c719b7 | 1082 | I915_STATE_WARN(cur_state != state, |
5358901f DV |
1083 | "%s assertion failure (expected %s, current %s)\n", |
1084 | pll->name, state_string(state), state_string(cur_state)); | |
040484af | 1085 | } |
040484af JB |
1086 | |
1087 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
1088 | enum pipe pipe, bool state) | |
1089 | { | |
1090 | int reg; | |
1091 | u32 val; | |
1092 | bool cur_state; | |
ad80a810 PZ |
1093 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1094 | pipe); | |
040484af | 1095 | |
affa9354 PZ |
1096 | if (HAS_DDI(dev_priv->dev)) { |
1097 | /* DDI does not have a specific FDI_TX register */ | |
ad80a810 | 1098 | reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
bf507ef7 | 1099 | val = I915_READ(reg); |
ad80a810 | 1100 | cur_state = !!(val & TRANS_DDI_FUNC_ENABLE); |
bf507ef7 ED |
1101 | } else { |
1102 | reg = FDI_TX_CTL(pipe); | |
1103 | val = I915_READ(reg); | |
1104 | cur_state = !!(val & FDI_TX_ENABLE); | |
1105 | } | |
e2c719b7 | 1106 | I915_STATE_WARN(cur_state != state, |
040484af JB |
1107 | "FDI TX state assertion failure (expected %s, current %s)\n", |
1108 | state_string(state), state_string(cur_state)); | |
1109 | } | |
1110 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
1111 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
1112 | ||
1113 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
1114 | enum pipe pipe, bool state) | |
1115 | { | |
1116 | int reg; | |
1117 | u32 val; | |
1118 | bool cur_state; | |
1119 | ||
d63fa0dc PZ |
1120 | reg = FDI_RX_CTL(pipe); |
1121 | val = I915_READ(reg); | |
1122 | cur_state = !!(val & FDI_RX_ENABLE); | |
e2c719b7 | 1123 | I915_STATE_WARN(cur_state != state, |
040484af JB |
1124 | "FDI RX state assertion failure (expected %s, current %s)\n", |
1125 | state_string(state), state_string(cur_state)); | |
1126 | } | |
1127 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
1128 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1129 | ||
1130 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1131 | enum pipe pipe) | |
1132 | { | |
1133 | int reg; | |
1134 | u32 val; | |
1135 | ||
1136 | /* ILK FDI PLL is always enabled */ | |
3d13ef2e | 1137 | if (INTEL_INFO(dev_priv->dev)->gen == 5) |
040484af JB |
1138 | return; |
1139 | ||
bf507ef7 | 1140 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
affa9354 | 1141 | if (HAS_DDI(dev_priv->dev)) |
bf507ef7 ED |
1142 | return; |
1143 | ||
040484af JB |
1144 | reg = FDI_TX_CTL(pipe); |
1145 | val = I915_READ(reg); | |
e2c719b7 | 1146 | I915_STATE_WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); |
040484af JB |
1147 | } |
1148 | ||
55607e8a DV |
1149 | void assert_fdi_rx_pll(struct drm_i915_private *dev_priv, |
1150 | enum pipe pipe, bool state) | |
040484af JB |
1151 | { |
1152 | int reg; | |
1153 | u32 val; | |
55607e8a | 1154 | bool cur_state; |
040484af JB |
1155 | |
1156 | reg = FDI_RX_CTL(pipe); | |
1157 | val = I915_READ(reg); | |
55607e8a | 1158 | cur_state = !!(val & FDI_RX_PLL_ENABLE); |
e2c719b7 | 1159 | I915_STATE_WARN(cur_state != state, |
55607e8a DV |
1160 | "FDI RX PLL assertion failure (expected %s, current %s)\n", |
1161 | state_string(state), state_string(cur_state)); | |
040484af JB |
1162 | } |
1163 | ||
b680c37a DV |
1164 | void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1165 | enum pipe pipe) | |
ea0760cf | 1166 | { |
bedd4dba JN |
1167 | struct drm_device *dev = dev_priv->dev; |
1168 | int pp_reg; | |
ea0760cf JB |
1169 | u32 val; |
1170 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1171 | bool locked = true; |
ea0760cf | 1172 | |
bedd4dba JN |
1173 | if (WARN_ON(HAS_DDI(dev))) |
1174 | return; | |
1175 | ||
1176 | if (HAS_PCH_SPLIT(dev)) { | |
1177 | u32 port_sel; | |
1178 | ||
ea0760cf | 1179 | pp_reg = PCH_PP_CONTROL; |
bedd4dba JN |
1180 | port_sel = I915_READ(PCH_PP_ON_DELAYS) & PANEL_PORT_SELECT_MASK; |
1181 | ||
1182 | if (port_sel == PANEL_PORT_SELECT_LVDS && | |
1183 | I915_READ(PCH_LVDS) & LVDS_PIPEB_SELECT) | |
1184 | panel_pipe = PIPE_B; | |
1185 | /* XXX: else fix for eDP */ | |
1186 | } else if (IS_VALLEYVIEW(dev)) { | |
1187 | /* presumably write lock depends on pipe, not port select */ | |
1188 | pp_reg = VLV_PIPE_PP_CONTROL(pipe); | |
1189 | panel_pipe = pipe; | |
ea0760cf JB |
1190 | } else { |
1191 | pp_reg = PP_CONTROL; | |
bedd4dba JN |
1192 | if (I915_READ(LVDS) & LVDS_PIPEB_SELECT) |
1193 | panel_pipe = PIPE_B; | |
ea0760cf JB |
1194 | } |
1195 | ||
1196 | val = I915_READ(pp_reg); | |
1197 | if (!(val & PANEL_POWER_ON) || | |
ec49ba2d | 1198 | ((val & PANEL_UNLOCK_MASK) == PANEL_UNLOCK_REGS)) |
ea0760cf JB |
1199 | locked = false; |
1200 | ||
e2c719b7 | 1201 | I915_STATE_WARN(panel_pipe == pipe && locked, |
ea0760cf | 1202 | "panel assertion failure, pipe %c regs locked\n", |
9db4a9c7 | 1203 | pipe_name(pipe)); |
ea0760cf JB |
1204 | } |
1205 | ||
93ce0ba6 JN |
1206 | static void assert_cursor(struct drm_i915_private *dev_priv, |
1207 | enum pipe pipe, bool state) | |
1208 | { | |
1209 | struct drm_device *dev = dev_priv->dev; | |
1210 | bool cur_state; | |
1211 | ||
d9d82081 | 1212 | if (IS_845G(dev) || IS_I865G(dev)) |
93ce0ba6 | 1213 | cur_state = I915_READ(_CURACNTR) & CURSOR_ENABLE; |
d9d82081 | 1214 | else |
5efb3e28 | 1215 | cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE; |
93ce0ba6 | 1216 | |
e2c719b7 | 1217 | I915_STATE_WARN(cur_state != state, |
93ce0ba6 JN |
1218 | "cursor on pipe %c assertion failure (expected %s, current %s)\n", |
1219 | pipe_name(pipe), state_string(state), state_string(cur_state)); | |
1220 | } | |
1221 | #define assert_cursor_enabled(d, p) assert_cursor(d, p, true) | |
1222 | #define assert_cursor_disabled(d, p) assert_cursor(d, p, false) | |
1223 | ||
b840d907 JB |
1224 | void assert_pipe(struct drm_i915_private *dev_priv, |
1225 | enum pipe pipe, bool state) | |
b24e7179 JB |
1226 | { |
1227 | int reg; | |
1228 | u32 val; | |
63d7bbe9 | 1229 | bool cur_state; |
702e7a56 PZ |
1230 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1231 | pipe); | |
b24e7179 | 1232 | |
b6b5d049 VS |
1233 | /* if we need the pipe quirk it must be always on */ |
1234 | if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
1235 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
8e636784 DV |
1236 | state = true; |
1237 | ||
f458ebbc | 1238 | if (!intel_display_power_is_enabled(dev_priv, |
b97186f0 | 1239 | POWER_DOMAIN_TRANSCODER(cpu_transcoder))) { |
69310161 PZ |
1240 | cur_state = false; |
1241 | } else { | |
1242 | reg = PIPECONF(cpu_transcoder); | |
1243 | val = I915_READ(reg); | |
1244 | cur_state = !!(val & PIPECONF_ENABLE); | |
1245 | } | |
1246 | ||
e2c719b7 | 1247 | I915_STATE_WARN(cur_state != state, |
63d7bbe9 | 1248 | "pipe %c assertion failure (expected %s, current %s)\n", |
9db4a9c7 | 1249 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1250 | } |
1251 | ||
931872fc CW |
1252 | static void assert_plane(struct drm_i915_private *dev_priv, |
1253 | enum plane plane, bool state) | |
b24e7179 JB |
1254 | { |
1255 | int reg; | |
1256 | u32 val; | |
931872fc | 1257 | bool cur_state; |
b24e7179 JB |
1258 | |
1259 | reg = DSPCNTR(plane); | |
1260 | val = I915_READ(reg); | |
931872fc | 1261 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
e2c719b7 | 1262 | I915_STATE_WARN(cur_state != state, |
931872fc CW |
1263 | "plane %c assertion failure (expected %s, current %s)\n", |
1264 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1265 | } |
1266 | ||
931872fc CW |
1267 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1268 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1269 | ||
b24e7179 JB |
1270 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1271 | enum pipe pipe) | |
1272 | { | |
653e1026 | 1273 | struct drm_device *dev = dev_priv->dev; |
b24e7179 JB |
1274 | int reg, i; |
1275 | u32 val; | |
1276 | int cur_pipe; | |
1277 | ||
653e1026 VS |
1278 | /* Primary planes are fixed to pipes on gen4+ */ |
1279 | if (INTEL_INFO(dev)->gen >= 4) { | |
28c05794 AJ |
1280 | reg = DSPCNTR(pipe); |
1281 | val = I915_READ(reg); | |
e2c719b7 | 1282 | I915_STATE_WARN(val & DISPLAY_PLANE_ENABLE, |
28c05794 AJ |
1283 | "plane %c assertion failure, should be disabled but not\n", |
1284 | plane_name(pipe)); | |
19ec1358 | 1285 | return; |
28c05794 | 1286 | } |
19ec1358 | 1287 | |
b24e7179 | 1288 | /* Need to check both planes against the pipe */ |
055e393f | 1289 | for_each_pipe(dev_priv, i) { |
b24e7179 JB |
1290 | reg = DSPCNTR(i); |
1291 | val = I915_READ(reg); | |
1292 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1293 | DISPPLANE_SEL_PIPE_SHIFT; | |
e2c719b7 | 1294 | I915_STATE_WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, |
9db4a9c7 JB |
1295 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1296 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1297 | } |
1298 | } | |
1299 | ||
19332d7a JB |
1300 | static void assert_sprites_disabled(struct drm_i915_private *dev_priv, |
1301 | enum pipe pipe) | |
1302 | { | |
20674eef | 1303 | struct drm_device *dev = dev_priv->dev; |
1fe47785 | 1304 | int reg, sprite; |
19332d7a JB |
1305 | u32 val; |
1306 | ||
7feb8b88 | 1307 | if (INTEL_INFO(dev)->gen >= 9) { |
3bdcfc0c | 1308 | for_each_sprite(dev_priv, pipe, sprite) { |
7feb8b88 | 1309 | val = I915_READ(PLANE_CTL(pipe, sprite)); |
e2c719b7 | 1310 | I915_STATE_WARN(val & PLANE_CTL_ENABLE, |
7feb8b88 DL |
1311 | "plane %d assertion failure, should be off on pipe %c but is still active\n", |
1312 | sprite, pipe_name(pipe)); | |
1313 | } | |
1314 | } else if (IS_VALLEYVIEW(dev)) { | |
3bdcfc0c | 1315 | for_each_sprite(dev_priv, pipe, sprite) { |
1fe47785 | 1316 | reg = SPCNTR(pipe, sprite); |
20674eef | 1317 | val = I915_READ(reg); |
e2c719b7 | 1318 | I915_STATE_WARN(val & SP_ENABLE, |
20674eef | 1319 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
1fe47785 | 1320 | sprite_name(pipe, sprite), pipe_name(pipe)); |
20674eef VS |
1321 | } |
1322 | } else if (INTEL_INFO(dev)->gen >= 7) { | |
1323 | reg = SPRCTL(pipe); | |
19332d7a | 1324 | val = I915_READ(reg); |
e2c719b7 | 1325 | I915_STATE_WARN(val & SPRITE_ENABLE, |
06da8da2 | 1326 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
20674eef VS |
1327 | plane_name(pipe), pipe_name(pipe)); |
1328 | } else if (INTEL_INFO(dev)->gen >= 5) { | |
1329 | reg = DVSCNTR(pipe); | |
19332d7a | 1330 | val = I915_READ(reg); |
e2c719b7 | 1331 | I915_STATE_WARN(val & DVS_ENABLE, |
06da8da2 | 1332 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
20674eef | 1333 | plane_name(pipe), pipe_name(pipe)); |
19332d7a JB |
1334 | } |
1335 | } | |
1336 | ||
08c71e5e VS |
1337 | static void assert_vblank_disabled(struct drm_crtc *crtc) |
1338 | { | |
e2c719b7 | 1339 | if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc) == 0)) |
08c71e5e VS |
1340 | drm_crtc_vblank_put(crtc); |
1341 | } | |
1342 | ||
89eff4be | 1343 | static void ibx_assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
92f2584a JB |
1344 | { |
1345 | u32 val; | |
1346 | bool enabled; | |
1347 | ||
e2c719b7 | 1348 | I915_STATE_WARN_ON(!(HAS_PCH_IBX(dev_priv->dev) || HAS_PCH_CPT(dev_priv->dev))); |
9d82aa17 | 1349 | |
92f2584a JB |
1350 | val = I915_READ(PCH_DREF_CONTROL); |
1351 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1352 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
e2c719b7 | 1353 | I915_STATE_WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); |
92f2584a JB |
1354 | } |
1355 | ||
ab9412ba DV |
1356 | static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv, |
1357 | enum pipe pipe) | |
92f2584a JB |
1358 | { |
1359 | int reg; | |
1360 | u32 val; | |
1361 | bool enabled; | |
1362 | ||
ab9412ba | 1363 | reg = PCH_TRANSCONF(pipe); |
92f2584a JB |
1364 | val = I915_READ(reg); |
1365 | enabled = !!(val & TRANS_ENABLE); | |
e2c719b7 | 1366 | I915_STATE_WARN(enabled, |
9db4a9c7 JB |
1367 | "transcoder assertion failed, should be off on pipe %c but is still active\n", |
1368 | pipe_name(pipe)); | |
92f2584a JB |
1369 | } |
1370 | ||
4e634389 KP |
1371 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1372 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1373 | { |
1374 | if ((val & DP_PORT_EN) == 0) | |
1375 | return false; | |
1376 | ||
1377 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1378 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); | |
1379 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); | |
1380 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) | |
1381 | return false; | |
44f37d1f CML |
1382 | } else if (IS_CHERRYVIEW(dev_priv->dev)) { |
1383 | if ((val & DP_PIPE_MASK_CHV) != DP_PIPE_SELECT_CHV(pipe)) | |
1384 | return false; | |
f0575e92 KP |
1385 | } else { |
1386 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1387 | return false; | |
1388 | } | |
1389 | return true; | |
1390 | } | |
1391 | ||
1519b995 KP |
1392 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1393 | enum pipe pipe, u32 val) | |
1394 | { | |
dc0fa718 | 1395 | if ((val & SDVO_ENABLE) == 0) |
1519b995 KP |
1396 | return false; |
1397 | ||
1398 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
dc0fa718 | 1399 | if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe)) |
1519b995 | 1400 | return false; |
44f37d1f CML |
1401 | } else if (IS_CHERRYVIEW(dev_priv->dev)) { |
1402 | if ((val & SDVO_PIPE_SEL_MASK_CHV) != SDVO_PIPE_SEL_CHV(pipe)) | |
1403 | return false; | |
1519b995 | 1404 | } else { |
dc0fa718 | 1405 | if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe)) |
1519b995 KP |
1406 | return false; |
1407 | } | |
1408 | return true; | |
1409 | } | |
1410 | ||
1411 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1412 | enum pipe pipe, u32 val) | |
1413 | { | |
1414 | if ((val & LVDS_PORT_EN) == 0) | |
1415 | return false; | |
1416 | ||
1417 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1418 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1419 | return false; | |
1420 | } else { | |
1421 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1422 | return false; | |
1423 | } | |
1424 | return true; | |
1425 | } | |
1426 | ||
1427 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1428 | enum pipe pipe, u32 val) | |
1429 | { | |
1430 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1431 | return false; | |
1432 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1433 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1434 | return false; | |
1435 | } else { | |
1436 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1437 | return false; | |
1438 | } | |
1439 | return true; | |
1440 | } | |
1441 | ||
291906f1 | 1442 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0575e92 | 1443 | enum pipe pipe, int reg, u32 port_sel) |
291906f1 | 1444 | { |
47a05eca | 1445 | u32 val = I915_READ(reg); |
e2c719b7 | 1446 | I915_STATE_WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1447 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1448 | reg, pipe_name(pipe)); |
de9a35ab | 1449 | |
e2c719b7 | 1450 | I915_STATE_WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 |
75c5da27 | 1451 | && (val & DP_PIPEB_SELECT), |
de9a35ab | 1452 | "IBX PCH dp port still using transcoder B\n"); |
291906f1 JB |
1453 | } |
1454 | ||
1455 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1456 | enum pipe pipe, int reg) | |
1457 | { | |
47a05eca | 1458 | u32 val = I915_READ(reg); |
e2c719b7 | 1459 | I915_STATE_WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1460 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1461 | reg, pipe_name(pipe)); |
de9a35ab | 1462 | |
e2c719b7 | 1463 | I915_STATE_WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0 |
75c5da27 | 1464 | && (val & SDVO_PIPE_B_SELECT), |
de9a35ab | 1465 | "IBX PCH hdmi port still using transcoder B\n"); |
291906f1 JB |
1466 | } |
1467 | ||
1468 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1469 | enum pipe pipe) | |
1470 | { | |
1471 | int reg; | |
1472 | u32 val; | |
291906f1 | 1473 | |
f0575e92 KP |
1474 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1475 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1476 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1477 | |
1478 | reg = PCH_ADPA; | |
1479 | val = I915_READ(reg); | |
e2c719b7 | 1480 | I915_STATE_WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1481 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1482 | pipe_name(pipe)); |
291906f1 JB |
1483 | |
1484 | reg = PCH_LVDS; | |
1485 | val = I915_READ(reg); | |
e2c719b7 | 1486 | I915_STATE_WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1487 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1488 | pipe_name(pipe)); |
291906f1 | 1489 | |
e2debe91 PZ |
1490 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB); |
1491 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC); | |
1492 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID); | |
291906f1 JB |
1493 | } |
1494 | ||
40e9cf64 JB |
1495 | static void intel_init_dpio(struct drm_device *dev) |
1496 | { | |
1497 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1498 | ||
1499 | if (!IS_VALLEYVIEW(dev)) | |
1500 | return; | |
1501 | ||
a09caddd CML |
1502 | /* |
1503 | * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C), | |
1504 | * CHV x1 PHY (DP/HDMI D) | |
1505 | * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C) | |
1506 | */ | |
1507 | if (IS_CHERRYVIEW(dev)) { | |
1508 | DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO_2; | |
1509 | DPIO_PHY_IOSF_PORT(DPIO_PHY1) = IOSF_PORT_DPIO; | |
1510 | } else { | |
1511 | DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO; | |
1512 | } | |
5382f5f3 JB |
1513 | } |
1514 | ||
d288f65f | 1515 | static void vlv_enable_pll(struct intel_crtc *crtc, |
5cec258b | 1516 | const struct intel_crtc_state *pipe_config) |
87442f73 | 1517 | { |
426115cf DV |
1518 | struct drm_device *dev = crtc->base.dev; |
1519 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1520 | int reg = DPLL(crtc->pipe); | |
d288f65f | 1521 | u32 dpll = pipe_config->dpll_hw_state.dpll; |
87442f73 | 1522 | |
426115cf | 1523 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87442f73 DV |
1524 | |
1525 | /* No really, not for ILK+ */ | |
1526 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev)); | |
1527 | ||
1528 | /* PLL is protected by panel, make sure we can write it */ | |
6a9e7363 | 1529 | if (IS_MOBILE(dev_priv->dev)) |
426115cf | 1530 | assert_panel_unlocked(dev_priv, crtc->pipe); |
87442f73 | 1531 | |
426115cf DV |
1532 | I915_WRITE(reg, dpll); |
1533 | POSTING_READ(reg); | |
1534 | udelay(150); | |
1535 | ||
1536 | if (wait_for(((I915_READ(reg) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) | |
1537 | DRM_ERROR("DPLL %d failed to lock\n", crtc->pipe); | |
1538 | ||
d288f65f | 1539 | I915_WRITE(DPLL_MD(crtc->pipe), pipe_config->dpll_hw_state.dpll_md); |
426115cf | 1540 | POSTING_READ(DPLL_MD(crtc->pipe)); |
87442f73 DV |
1541 | |
1542 | /* We do this three times for luck */ | |
426115cf | 1543 | I915_WRITE(reg, dpll); |
87442f73 DV |
1544 | POSTING_READ(reg); |
1545 | udelay(150); /* wait for warmup */ | |
426115cf | 1546 | I915_WRITE(reg, dpll); |
87442f73 DV |
1547 | POSTING_READ(reg); |
1548 | udelay(150); /* wait for warmup */ | |
426115cf | 1549 | I915_WRITE(reg, dpll); |
87442f73 DV |
1550 | POSTING_READ(reg); |
1551 | udelay(150); /* wait for warmup */ | |
1552 | } | |
1553 | ||
d288f65f | 1554 | static void chv_enable_pll(struct intel_crtc *crtc, |
5cec258b | 1555 | const struct intel_crtc_state *pipe_config) |
9d556c99 CML |
1556 | { |
1557 | struct drm_device *dev = crtc->base.dev; | |
1558 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1559 | int pipe = crtc->pipe; | |
1560 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
9d556c99 CML |
1561 | u32 tmp; |
1562 | ||
1563 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
1564 | ||
1565 | BUG_ON(!IS_CHERRYVIEW(dev_priv->dev)); | |
1566 | ||
1567 | mutex_lock(&dev_priv->dpio_lock); | |
1568 | ||
1569 | /* Enable back the 10bit clock to display controller */ | |
1570 | tmp = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)); | |
1571 | tmp |= DPIO_DCLKP_EN; | |
1572 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), tmp); | |
1573 | ||
1574 | /* | |
1575 | * Need to wait > 100ns between dclkp clock enable bit and PLL enable. | |
1576 | */ | |
1577 | udelay(1); | |
1578 | ||
1579 | /* Enable PLL */ | |
d288f65f | 1580 | I915_WRITE(DPLL(pipe), pipe_config->dpll_hw_state.dpll); |
9d556c99 CML |
1581 | |
1582 | /* Check PLL is locked */ | |
a11b0703 | 1583 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) |
9d556c99 CML |
1584 | DRM_ERROR("PLL %d failed to lock\n", pipe); |
1585 | ||
a11b0703 | 1586 | /* not sure when this should be written */ |
d288f65f | 1587 | I915_WRITE(DPLL_MD(pipe), pipe_config->dpll_hw_state.dpll_md); |
a11b0703 VS |
1588 | POSTING_READ(DPLL_MD(pipe)); |
1589 | ||
9d556c99 CML |
1590 | mutex_unlock(&dev_priv->dpio_lock); |
1591 | } | |
1592 | ||
1c4e0274 VS |
1593 | static int intel_num_dvo_pipes(struct drm_device *dev) |
1594 | { | |
1595 | struct intel_crtc *crtc; | |
1596 | int count = 0; | |
1597 | ||
1598 | for_each_intel_crtc(dev, crtc) | |
1599 | count += crtc->active && | |
409ee761 | 1600 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO); |
1c4e0274 VS |
1601 | |
1602 | return count; | |
1603 | } | |
1604 | ||
66e3d5c0 | 1605 | static void i9xx_enable_pll(struct intel_crtc *crtc) |
63d7bbe9 | 1606 | { |
66e3d5c0 DV |
1607 | struct drm_device *dev = crtc->base.dev; |
1608 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1609 | int reg = DPLL(crtc->pipe); | |
6e3c9717 | 1610 | u32 dpll = crtc->config->dpll_hw_state.dpll; |
63d7bbe9 | 1611 | |
66e3d5c0 | 1612 | assert_pipe_disabled(dev_priv, crtc->pipe); |
58c6eaa2 | 1613 | |
63d7bbe9 | 1614 | /* No really, not for ILK+ */ |
3d13ef2e | 1615 | BUG_ON(INTEL_INFO(dev)->gen >= 5); |
63d7bbe9 JB |
1616 | |
1617 | /* PLL is protected by panel, make sure we can write it */ | |
66e3d5c0 DV |
1618 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
1619 | assert_panel_unlocked(dev_priv, crtc->pipe); | |
63d7bbe9 | 1620 | |
1c4e0274 VS |
1621 | /* Enable DVO 2x clock on both PLLs if necessary */ |
1622 | if (IS_I830(dev) && intel_num_dvo_pipes(dev) > 0) { | |
1623 | /* | |
1624 | * It appears to be important that we don't enable this | |
1625 | * for the current pipe before otherwise configuring the | |
1626 | * PLL. No idea how this should be handled if multiple | |
1627 | * DVO outputs are enabled simultaneosly. | |
1628 | */ | |
1629 | dpll |= DPLL_DVO_2X_MODE; | |
1630 | I915_WRITE(DPLL(!crtc->pipe), | |
1631 | I915_READ(DPLL(!crtc->pipe)) | DPLL_DVO_2X_MODE); | |
1632 | } | |
66e3d5c0 DV |
1633 | |
1634 | /* Wait for the clocks to stabilize. */ | |
1635 | POSTING_READ(reg); | |
1636 | udelay(150); | |
1637 | ||
1638 | if (INTEL_INFO(dev)->gen >= 4) { | |
1639 | I915_WRITE(DPLL_MD(crtc->pipe), | |
6e3c9717 | 1640 | crtc->config->dpll_hw_state.dpll_md); |
66e3d5c0 DV |
1641 | } else { |
1642 | /* The pixel multiplier can only be updated once the | |
1643 | * DPLL is enabled and the clocks are stable. | |
1644 | * | |
1645 | * So write it again. | |
1646 | */ | |
1647 | I915_WRITE(reg, dpll); | |
1648 | } | |
63d7bbe9 JB |
1649 | |
1650 | /* We do this three times for luck */ | |
66e3d5c0 | 1651 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1652 | POSTING_READ(reg); |
1653 | udelay(150); /* wait for warmup */ | |
66e3d5c0 | 1654 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1655 | POSTING_READ(reg); |
1656 | udelay(150); /* wait for warmup */ | |
66e3d5c0 | 1657 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1658 | POSTING_READ(reg); |
1659 | udelay(150); /* wait for warmup */ | |
1660 | } | |
1661 | ||
1662 | /** | |
50b44a44 | 1663 | * i9xx_disable_pll - disable a PLL |
63d7bbe9 JB |
1664 | * @dev_priv: i915 private structure |
1665 | * @pipe: pipe PLL to disable | |
1666 | * | |
1667 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1668 | * | |
1669 | * Note! This is for pre-ILK only. | |
1670 | */ | |
1c4e0274 | 1671 | static void i9xx_disable_pll(struct intel_crtc *crtc) |
63d7bbe9 | 1672 | { |
1c4e0274 VS |
1673 | struct drm_device *dev = crtc->base.dev; |
1674 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1675 | enum pipe pipe = crtc->pipe; | |
1676 | ||
1677 | /* Disable DVO 2x clock on both PLLs if necessary */ | |
1678 | if (IS_I830(dev) && | |
409ee761 | 1679 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO) && |
1c4e0274 VS |
1680 | intel_num_dvo_pipes(dev) == 1) { |
1681 | I915_WRITE(DPLL(PIPE_B), | |
1682 | I915_READ(DPLL(PIPE_B)) & ~DPLL_DVO_2X_MODE); | |
1683 | I915_WRITE(DPLL(PIPE_A), | |
1684 | I915_READ(DPLL(PIPE_A)) & ~DPLL_DVO_2X_MODE); | |
1685 | } | |
1686 | ||
b6b5d049 VS |
1687 | /* Don't disable pipe or pipe PLLs if needed */ |
1688 | if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
1689 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
63d7bbe9 JB |
1690 | return; |
1691 | ||
1692 | /* Make sure the pipe isn't still relying on us */ | |
1693 | assert_pipe_disabled(dev_priv, pipe); | |
1694 | ||
50b44a44 DV |
1695 | I915_WRITE(DPLL(pipe), 0); |
1696 | POSTING_READ(DPLL(pipe)); | |
63d7bbe9 JB |
1697 | } |
1698 | ||
f6071166 JB |
1699 | static void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
1700 | { | |
1701 | u32 val = 0; | |
1702 | ||
1703 | /* Make sure the pipe isn't still relying on us */ | |
1704 | assert_pipe_disabled(dev_priv, pipe); | |
1705 | ||
e5cbfbfb ID |
1706 | /* |
1707 | * Leave integrated clock source and reference clock enabled for pipe B. | |
1708 | * The latter is needed for VGA hotplug / manual detection. | |
1709 | */ | |
f6071166 | 1710 | if (pipe == PIPE_B) |
e5cbfbfb | 1711 | val = DPLL_INTEGRATED_CRI_CLK_VLV | DPLL_REFA_CLK_ENABLE_VLV; |
f6071166 JB |
1712 | I915_WRITE(DPLL(pipe), val); |
1713 | POSTING_READ(DPLL(pipe)); | |
076ed3b2 CML |
1714 | |
1715 | } | |
1716 | ||
1717 | static void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1718 | { | |
d752048d | 1719 | enum dpio_channel port = vlv_pipe_to_channel(pipe); |
076ed3b2 CML |
1720 | u32 val; |
1721 | ||
a11b0703 VS |
1722 | /* Make sure the pipe isn't still relying on us */ |
1723 | assert_pipe_disabled(dev_priv, pipe); | |
076ed3b2 | 1724 | |
a11b0703 | 1725 | /* Set PLL en = 0 */ |
d17ec4ce | 1726 | val = DPLL_SSC_REF_CLOCK_CHV | DPLL_REFA_CLK_ENABLE_VLV; |
a11b0703 VS |
1727 | if (pipe != PIPE_A) |
1728 | val |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
1729 | I915_WRITE(DPLL(pipe), val); | |
1730 | POSTING_READ(DPLL(pipe)); | |
d752048d VS |
1731 | |
1732 | mutex_lock(&dev_priv->dpio_lock); | |
1733 | ||
1734 | /* Disable 10bit clock to display controller */ | |
1735 | val = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)); | |
1736 | val &= ~DPIO_DCLKP_EN; | |
1737 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), val); | |
1738 | ||
61407f6d VS |
1739 | /* disable left/right clock distribution */ |
1740 | if (pipe != PIPE_B) { | |
1741 | val = vlv_dpio_read(dev_priv, pipe, _CHV_CMN_DW5_CH0); | |
1742 | val &= ~(CHV_BUFLEFTENA1_MASK | CHV_BUFRIGHTENA1_MASK); | |
1743 | vlv_dpio_write(dev_priv, pipe, _CHV_CMN_DW5_CH0, val); | |
1744 | } else { | |
1745 | val = vlv_dpio_read(dev_priv, pipe, _CHV_CMN_DW1_CH1); | |
1746 | val &= ~(CHV_BUFLEFTENA2_MASK | CHV_BUFRIGHTENA2_MASK); | |
1747 | vlv_dpio_write(dev_priv, pipe, _CHV_CMN_DW1_CH1, val); | |
1748 | } | |
1749 | ||
d752048d | 1750 | mutex_unlock(&dev_priv->dpio_lock); |
f6071166 JB |
1751 | } |
1752 | ||
e4607fcf CML |
1753 | void vlv_wait_port_ready(struct drm_i915_private *dev_priv, |
1754 | struct intel_digital_port *dport) | |
89b667f8 JB |
1755 | { |
1756 | u32 port_mask; | |
00fc31b7 | 1757 | int dpll_reg; |
89b667f8 | 1758 | |
e4607fcf CML |
1759 | switch (dport->port) { |
1760 | case PORT_B: | |
89b667f8 | 1761 | port_mask = DPLL_PORTB_READY_MASK; |
00fc31b7 | 1762 | dpll_reg = DPLL(0); |
e4607fcf CML |
1763 | break; |
1764 | case PORT_C: | |
89b667f8 | 1765 | port_mask = DPLL_PORTC_READY_MASK; |
00fc31b7 CML |
1766 | dpll_reg = DPLL(0); |
1767 | break; | |
1768 | case PORT_D: | |
1769 | port_mask = DPLL_PORTD_READY_MASK; | |
1770 | dpll_reg = DPIO_PHY_STATUS; | |
e4607fcf CML |
1771 | break; |
1772 | default: | |
1773 | BUG(); | |
1774 | } | |
89b667f8 | 1775 | |
00fc31b7 | 1776 | if (wait_for((I915_READ(dpll_reg) & port_mask) == 0, 1000)) |
89b667f8 | 1777 | WARN(1, "timed out waiting for port %c ready: 0x%08x\n", |
00fc31b7 | 1778 | port_name(dport->port), I915_READ(dpll_reg)); |
89b667f8 JB |
1779 | } |
1780 | ||
b14b1055 DV |
1781 | static void intel_prepare_shared_dpll(struct intel_crtc *crtc) |
1782 | { | |
1783 | struct drm_device *dev = crtc->base.dev; | |
1784 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1785 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); | |
1786 | ||
be19f0ff CW |
1787 | if (WARN_ON(pll == NULL)) |
1788 | return; | |
1789 | ||
3e369b76 | 1790 | WARN_ON(!pll->config.crtc_mask); |
b14b1055 DV |
1791 | if (pll->active == 0) { |
1792 | DRM_DEBUG_DRIVER("setting up %s\n", pll->name); | |
1793 | WARN_ON(pll->on); | |
1794 | assert_shared_dpll_disabled(dev_priv, pll); | |
1795 | ||
1796 | pll->mode_set(dev_priv, pll); | |
1797 | } | |
1798 | } | |
1799 | ||
92f2584a | 1800 | /** |
85b3894f | 1801 | * intel_enable_shared_dpll - enable PCH PLL |
92f2584a JB |
1802 | * @dev_priv: i915 private structure |
1803 | * @pipe: pipe PLL to enable | |
1804 | * | |
1805 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1806 | * drives the transcoder clock. | |
1807 | */ | |
85b3894f | 1808 | static void intel_enable_shared_dpll(struct intel_crtc *crtc) |
92f2584a | 1809 | { |
3d13ef2e DL |
1810 | struct drm_device *dev = crtc->base.dev; |
1811 | struct drm_i915_private *dev_priv = dev->dev_private; | |
e2b78267 | 1812 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); |
92f2584a | 1813 | |
87a875bb | 1814 | if (WARN_ON(pll == NULL)) |
48da64a8 CW |
1815 | return; |
1816 | ||
3e369b76 | 1817 | if (WARN_ON(pll->config.crtc_mask == 0)) |
48da64a8 | 1818 | return; |
ee7b9f93 | 1819 | |
74dd6928 | 1820 | DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n", |
46edb027 | 1821 | pll->name, pll->active, pll->on, |
e2b78267 | 1822 | crtc->base.base.id); |
92f2584a | 1823 | |
cdbd2316 DV |
1824 | if (pll->active++) { |
1825 | WARN_ON(!pll->on); | |
e9d6944e | 1826 | assert_shared_dpll_enabled(dev_priv, pll); |
ee7b9f93 JB |
1827 | return; |
1828 | } | |
f4a091c7 | 1829 | WARN_ON(pll->on); |
ee7b9f93 | 1830 | |
bd2bb1b9 PZ |
1831 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); |
1832 | ||
46edb027 | 1833 | DRM_DEBUG_KMS("enabling %s\n", pll->name); |
e7b903d2 | 1834 | pll->enable(dev_priv, pll); |
ee7b9f93 | 1835 | pll->on = true; |
92f2584a JB |
1836 | } |
1837 | ||
f6daaec2 | 1838 | static void intel_disable_shared_dpll(struct intel_crtc *crtc) |
92f2584a | 1839 | { |
3d13ef2e DL |
1840 | struct drm_device *dev = crtc->base.dev; |
1841 | struct drm_i915_private *dev_priv = dev->dev_private; | |
e2b78267 | 1842 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); |
4c609cb8 | 1843 | |
92f2584a | 1844 | /* PCH only available on ILK+ */ |
3d13ef2e | 1845 | BUG_ON(INTEL_INFO(dev)->gen < 5); |
87a875bb | 1846 | if (WARN_ON(pll == NULL)) |
ee7b9f93 | 1847 | return; |
92f2584a | 1848 | |
3e369b76 | 1849 | if (WARN_ON(pll->config.crtc_mask == 0)) |
48da64a8 | 1850 | return; |
7a419866 | 1851 | |
46edb027 DV |
1852 | DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n", |
1853 | pll->name, pll->active, pll->on, | |
e2b78267 | 1854 | crtc->base.base.id); |
7a419866 | 1855 | |
48da64a8 | 1856 | if (WARN_ON(pll->active == 0)) { |
e9d6944e | 1857 | assert_shared_dpll_disabled(dev_priv, pll); |
48da64a8 CW |
1858 | return; |
1859 | } | |
1860 | ||
e9d6944e | 1861 | assert_shared_dpll_enabled(dev_priv, pll); |
f4a091c7 | 1862 | WARN_ON(!pll->on); |
cdbd2316 | 1863 | if (--pll->active) |
7a419866 | 1864 | return; |
ee7b9f93 | 1865 | |
46edb027 | 1866 | DRM_DEBUG_KMS("disabling %s\n", pll->name); |
e7b903d2 | 1867 | pll->disable(dev_priv, pll); |
ee7b9f93 | 1868 | pll->on = false; |
bd2bb1b9 PZ |
1869 | |
1870 | intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS); | |
92f2584a JB |
1871 | } |
1872 | ||
b8a4f404 PZ |
1873 | static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
1874 | enum pipe pipe) | |
040484af | 1875 | { |
23670b32 | 1876 | struct drm_device *dev = dev_priv->dev; |
7c26e5c6 | 1877 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
e2b78267 | 1878 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
23670b32 | 1879 | uint32_t reg, val, pipeconf_val; |
040484af JB |
1880 | |
1881 | /* PCH only available on ILK+ */ | |
55522f37 | 1882 | BUG_ON(!HAS_PCH_SPLIT(dev)); |
040484af JB |
1883 | |
1884 | /* Make sure PCH DPLL is enabled */ | |
e72f9fbf | 1885 | assert_shared_dpll_enabled(dev_priv, |
e9d6944e | 1886 | intel_crtc_to_shared_dpll(intel_crtc)); |
040484af JB |
1887 | |
1888 | /* FDI must be feeding us bits for PCH ports */ | |
1889 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1890 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1891 | ||
23670b32 DV |
1892 | if (HAS_PCH_CPT(dev)) { |
1893 | /* Workaround: Set the timing override bit before enabling the | |
1894 | * pch transcoder. */ | |
1895 | reg = TRANS_CHICKEN2(pipe); | |
1896 | val = I915_READ(reg); | |
1897 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1898 | I915_WRITE(reg, val); | |
59c859d6 | 1899 | } |
23670b32 | 1900 | |
ab9412ba | 1901 | reg = PCH_TRANSCONF(pipe); |
040484af | 1902 | val = I915_READ(reg); |
5f7f726d | 1903 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1904 | |
1905 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1906 | /* | |
1907 | * make the BPC in transcoder be consistent with | |
1908 | * that in pipeconf reg. | |
1909 | */ | |
dfd07d72 DV |
1910 | val &= ~PIPECONF_BPC_MASK; |
1911 | val |= pipeconf_val & PIPECONF_BPC_MASK; | |
e9bcff5c | 1912 | } |
5f7f726d PZ |
1913 | |
1914 | val &= ~TRANS_INTERLACE_MASK; | |
1915 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 | 1916 | if (HAS_PCH_IBX(dev_priv->dev) && |
409ee761 | 1917 | intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
7c26e5c6 PZ |
1918 | val |= TRANS_LEGACY_INTERLACED_ILK; |
1919 | else | |
1920 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1921 | else |
1922 | val |= TRANS_PROGRESSIVE; | |
1923 | ||
040484af JB |
1924 | I915_WRITE(reg, val | TRANS_ENABLE); |
1925 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
4bb6f1f3 | 1926 | DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe)); |
040484af JB |
1927 | } |
1928 | ||
8fb033d7 | 1929 | static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
937bb610 | 1930 | enum transcoder cpu_transcoder) |
040484af | 1931 | { |
8fb033d7 | 1932 | u32 val, pipeconf_val; |
8fb033d7 PZ |
1933 | |
1934 | /* PCH only available on ILK+ */ | |
55522f37 | 1935 | BUG_ON(!HAS_PCH_SPLIT(dev_priv->dev)); |
8fb033d7 | 1936 | |
8fb033d7 | 1937 | /* FDI must be feeding us bits for PCH ports */ |
1a240d4d | 1938 | assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder); |
937bb610 | 1939 | assert_fdi_rx_enabled(dev_priv, TRANSCODER_A); |
8fb033d7 | 1940 | |
223a6fdf PZ |
1941 | /* Workaround: set timing override bit. */ |
1942 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 1943 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf PZ |
1944 | I915_WRITE(_TRANSA_CHICKEN2, val); |
1945 | ||
25f3ef11 | 1946 | val = TRANS_ENABLE; |
937bb610 | 1947 | pipeconf_val = I915_READ(PIPECONF(cpu_transcoder)); |
8fb033d7 | 1948 | |
9a76b1c6 PZ |
1949 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) == |
1950 | PIPECONF_INTERLACED_ILK) | |
a35f2679 | 1951 | val |= TRANS_INTERLACED; |
8fb033d7 PZ |
1952 | else |
1953 | val |= TRANS_PROGRESSIVE; | |
1954 | ||
ab9412ba DV |
1955 | I915_WRITE(LPT_TRANSCONF, val); |
1956 | if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100)) | |
937bb610 | 1957 | DRM_ERROR("Failed to enable PCH transcoder\n"); |
8fb033d7 PZ |
1958 | } |
1959 | ||
b8a4f404 PZ |
1960 | static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv, |
1961 | enum pipe pipe) | |
040484af | 1962 | { |
23670b32 DV |
1963 | struct drm_device *dev = dev_priv->dev; |
1964 | uint32_t reg, val; | |
040484af JB |
1965 | |
1966 | /* FDI relies on the transcoder */ | |
1967 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1968 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1969 | ||
291906f1 JB |
1970 | /* Ports must be off as well */ |
1971 | assert_pch_ports_disabled(dev_priv, pipe); | |
1972 | ||
ab9412ba | 1973 | reg = PCH_TRANSCONF(pipe); |
040484af JB |
1974 | val = I915_READ(reg); |
1975 | val &= ~TRANS_ENABLE; | |
1976 | I915_WRITE(reg, val); | |
1977 | /* wait for PCH transcoder off, transcoder state */ | |
1978 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4bb6f1f3 | 1979 | DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe)); |
23670b32 DV |
1980 | |
1981 | if (!HAS_PCH_IBX(dev)) { | |
1982 | /* Workaround: Clear the timing override chicken bit again. */ | |
1983 | reg = TRANS_CHICKEN2(pipe); | |
1984 | val = I915_READ(reg); | |
1985 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1986 | I915_WRITE(reg, val); | |
1987 | } | |
040484af JB |
1988 | } |
1989 | ||
ab4d966c | 1990 | static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv) |
8fb033d7 | 1991 | { |
8fb033d7 PZ |
1992 | u32 val; |
1993 | ||
ab9412ba | 1994 | val = I915_READ(LPT_TRANSCONF); |
8fb033d7 | 1995 | val &= ~TRANS_ENABLE; |
ab9412ba | 1996 | I915_WRITE(LPT_TRANSCONF, val); |
8fb033d7 | 1997 | /* wait for PCH transcoder off, transcoder state */ |
ab9412ba | 1998 | if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50)) |
8a52fd9f | 1999 | DRM_ERROR("Failed to disable PCH transcoder\n"); |
223a6fdf PZ |
2000 | |
2001 | /* Workaround: clear timing override bit. */ | |
2002 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 2003 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf | 2004 | I915_WRITE(_TRANSA_CHICKEN2, val); |
040484af JB |
2005 | } |
2006 | ||
b24e7179 | 2007 | /** |
309cfea8 | 2008 | * intel_enable_pipe - enable a pipe, asserting requirements |
0372264a | 2009 | * @crtc: crtc responsible for the pipe |
b24e7179 | 2010 | * |
0372264a | 2011 | * Enable @crtc's pipe, making sure that various hardware specific requirements |
b24e7179 | 2012 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. |
b24e7179 | 2013 | */ |
e1fdc473 | 2014 | static void intel_enable_pipe(struct intel_crtc *crtc) |
b24e7179 | 2015 | { |
0372264a PZ |
2016 | struct drm_device *dev = crtc->base.dev; |
2017 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2018 | enum pipe pipe = crtc->pipe; | |
702e7a56 PZ |
2019 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
2020 | pipe); | |
1a240d4d | 2021 | enum pipe pch_transcoder; |
b24e7179 JB |
2022 | int reg; |
2023 | u32 val; | |
2024 | ||
58c6eaa2 | 2025 | assert_planes_disabled(dev_priv, pipe); |
93ce0ba6 | 2026 | assert_cursor_disabled(dev_priv, pipe); |
58c6eaa2 DV |
2027 | assert_sprites_disabled(dev_priv, pipe); |
2028 | ||
681e5811 | 2029 | if (HAS_PCH_LPT(dev_priv->dev)) |
cc391bbb PZ |
2030 | pch_transcoder = TRANSCODER_A; |
2031 | else | |
2032 | pch_transcoder = pipe; | |
2033 | ||
b24e7179 JB |
2034 | /* |
2035 | * A pipe without a PLL won't actually be able to drive bits from | |
2036 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
2037 | * need the check. | |
2038 | */ | |
2039 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
409ee761 | 2040 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI)) |
23538ef1 JN |
2041 | assert_dsi_pll_enabled(dev_priv); |
2042 | else | |
2043 | assert_pll_enabled(dev_priv, pipe); | |
040484af | 2044 | else { |
6e3c9717 | 2045 | if (crtc->config->has_pch_encoder) { |
040484af | 2046 | /* if driving the PCH, we need FDI enabled */ |
cc391bbb | 2047 | assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder); |
1a240d4d DV |
2048 | assert_fdi_tx_pll_enabled(dev_priv, |
2049 | (enum pipe) cpu_transcoder); | |
040484af JB |
2050 | } |
2051 | /* FIXME: assert CPU port conditions for SNB+ */ | |
2052 | } | |
b24e7179 | 2053 | |
702e7a56 | 2054 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 2055 | val = I915_READ(reg); |
7ad25d48 | 2056 | if (val & PIPECONF_ENABLE) { |
b6b5d049 VS |
2057 | WARN_ON(!((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
2058 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))); | |
00d70b15 | 2059 | return; |
7ad25d48 | 2060 | } |
00d70b15 CW |
2061 | |
2062 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
851855d8 | 2063 | POSTING_READ(reg); |
b24e7179 JB |
2064 | } |
2065 | ||
2066 | /** | |
309cfea8 | 2067 | * intel_disable_pipe - disable a pipe, asserting requirements |
575f7ab7 | 2068 | * @crtc: crtc whose pipes is to be disabled |
b24e7179 | 2069 | * |
575f7ab7 VS |
2070 | * Disable the pipe of @crtc, making sure that various hardware |
2071 | * specific requirements are met, if applicable, e.g. plane | |
2072 | * disabled, panel fitter off, etc. | |
b24e7179 JB |
2073 | * |
2074 | * Will wait until the pipe has shut down before returning. | |
2075 | */ | |
575f7ab7 | 2076 | static void intel_disable_pipe(struct intel_crtc *crtc) |
b24e7179 | 2077 | { |
575f7ab7 | 2078 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; |
6e3c9717 | 2079 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
575f7ab7 | 2080 | enum pipe pipe = crtc->pipe; |
b24e7179 JB |
2081 | int reg; |
2082 | u32 val; | |
2083 | ||
2084 | /* | |
2085 | * Make sure planes won't keep trying to pump pixels to us, | |
2086 | * or we might hang the display. | |
2087 | */ | |
2088 | assert_planes_disabled(dev_priv, pipe); | |
93ce0ba6 | 2089 | assert_cursor_disabled(dev_priv, pipe); |
19332d7a | 2090 | assert_sprites_disabled(dev_priv, pipe); |
b24e7179 | 2091 | |
702e7a56 | 2092 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 2093 | val = I915_READ(reg); |
00d70b15 CW |
2094 | if ((val & PIPECONF_ENABLE) == 0) |
2095 | return; | |
2096 | ||
67adc644 VS |
2097 | /* |
2098 | * Double wide has implications for planes | |
2099 | * so best keep it disabled when not needed. | |
2100 | */ | |
6e3c9717 | 2101 | if (crtc->config->double_wide) |
67adc644 VS |
2102 | val &= ~PIPECONF_DOUBLE_WIDE; |
2103 | ||
2104 | /* Don't disable pipe or pipe PLLs if needed */ | |
b6b5d049 VS |
2105 | if (!(pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) && |
2106 | !(pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
67adc644 VS |
2107 | val &= ~PIPECONF_ENABLE; |
2108 | ||
2109 | I915_WRITE(reg, val); | |
2110 | if ((val & PIPECONF_ENABLE) == 0) | |
2111 | intel_wait_for_pipe_off(crtc); | |
b24e7179 JB |
2112 | } |
2113 | ||
d74362c9 KP |
2114 | /* |
2115 | * Plane regs are double buffered, going from enabled->disabled needs a | |
2116 | * trigger in order to latch. The display address reg provides this. | |
2117 | */ | |
1dba99f4 VS |
2118 | void intel_flush_primary_plane(struct drm_i915_private *dev_priv, |
2119 | enum plane plane) | |
d74362c9 | 2120 | { |
3d13ef2e DL |
2121 | struct drm_device *dev = dev_priv->dev; |
2122 | u32 reg = INTEL_INFO(dev)->gen >= 4 ? DSPSURF(plane) : DSPADDR(plane); | |
1dba99f4 VS |
2123 | |
2124 | I915_WRITE(reg, I915_READ(reg)); | |
2125 | POSTING_READ(reg); | |
d74362c9 KP |
2126 | } |
2127 | ||
b24e7179 | 2128 | /** |
262ca2b0 | 2129 | * intel_enable_primary_hw_plane - enable the primary plane on a given pipe |
fdd508a6 VS |
2130 | * @plane: plane to be enabled |
2131 | * @crtc: crtc for the plane | |
b24e7179 | 2132 | * |
fdd508a6 | 2133 | * Enable @plane on @crtc, making sure that the pipe is running first. |
b24e7179 | 2134 | */ |
fdd508a6 VS |
2135 | static void intel_enable_primary_hw_plane(struct drm_plane *plane, |
2136 | struct drm_crtc *crtc) | |
b24e7179 | 2137 | { |
fdd508a6 VS |
2138 | struct drm_device *dev = plane->dev; |
2139 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2140 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
b24e7179 JB |
2141 | |
2142 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
fdd508a6 | 2143 | assert_pipe_enabled(dev_priv, intel_crtc->pipe); |
b24e7179 | 2144 | |
98ec7739 VS |
2145 | if (intel_crtc->primary_enabled) |
2146 | return; | |
0037f71c | 2147 | |
4c445e0e | 2148 | intel_crtc->primary_enabled = true; |
939c2fe8 | 2149 | |
fdd508a6 VS |
2150 | dev_priv->display.update_primary_plane(crtc, plane->fb, |
2151 | crtc->x, crtc->y); | |
33c3b0d1 VS |
2152 | |
2153 | /* | |
2154 | * BDW signals flip done immediately if the plane | |
2155 | * is disabled, even if the plane enable is already | |
2156 | * armed to occur at the next vblank :( | |
2157 | */ | |
2158 | if (IS_BROADWELL(dev)) | |
2159 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
b24e7179 JB |
2160 | } |
2161 | ||
b24e7179 | 2162 | /** |
262ca2b0 | 2163 | * intel_disable_primary_hw_plane - disable the primary hardware plane |
fdd508a6 VS |
2164 | * @plane: plane to be disabled |
2165 | * @crtc: crtc for the plane | |
b24e7179 | 2166 | * |
fdd508a6 | 2167 | * Disable @plane on @crtc, making sure that the pipe is running first. |
b24e7179 | 2168 | */ |
fdd508a6 VS |
2169 | static void intel_disable_primary_hw_plane(struct drm_plane *plane, |
2170 | struct drm_crtc *crtc) | |
b24e7179 | 2171 | { |
fdd508a6 VS |
2172 | struct drm_device *dev = plane->dev; |
2173 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2174 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2175 | ||
32b7eeec MR |
2176 | if (WARN_ON(!intel_crtc->active)) |
2177 | return; | |
b24e7179 | 2178 | |
98ec7739 VS |
2179 | if (!intel_crtc->primary_enabled) |
2180 | return; | |
0037f71c | 2181 | |
4c445e0e | 2182 | intel_crtc->primary_enabled = false; |
939c2fe8 | 2183 | |
fdd508a6 VS |
2184 | dev_priv->display.update_primary_plane(crtc, plane->fb, |
2185 | crtc->x, crtc->y); | |
b24e7179 JB |
2186 | } |
2187 | ||
693db184 CW |
2188 | static bool need_vtd_wa(struct drm_device *dev) |
2189 | { | |
2190 | #ifdef CONFIG_INTEL_IOMMU | |
2191 | if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped) | |
2192 | return true; | |
2193 | #endif | |
2194 | return false; | |
2195 | } | |
2196 | ||
ec2c981e | 2197 | int |
091df6cb DV |
2198 | intel_fb_align_height(struct drm_device *dev, int height, |
2199 | uint32_t pixel_format, | |
2200 | uint64_t fb_format_modifier) | |
a57ce0b2 JB |
2201 | { |
2202 | int tile_height; | |
b5d0e9bf | 2203 | uint32_t bits_per_pixel; |
a57ce0b2 | 2204 | |
b5d0e9bf DL |
2205 | switch (fb_format_modifier) { |
2206 | case DRM_FORMAT_MOD_NONE: | |
2207 | tile_height = 1; | |
2208 | break; | |
2209 | case I915_FORMAT_MOD_X_TILED: | |
2210 | tile_height = IS_GEN2(dev) ? 16 : 8; | |
2211 | break; | |
2212 | case I915_FORMAT_MOD_Y_TILED: | |
2213 | tile_height = 32; | |
2214 | break; | |
2215 | case I915_FORMAT_MOD_Yf_TILED: | |
2216 | bits_per_pixel = drm_format_plane_cpp(pixel_format, 0) * 8; | |
2217 | switch (bits_per_pixel) { | |
2218 | default: | |
2219 | case 8: | |
2220 | tile_height = 64; | |
2221 | break; | |
2222 | case 16: | |
2223 | case 32: | |
2224 | tile_height = 32; | |
2225 | break; | |
2226 | case 64: | |
2227 | tile_height = 16; | |
2228 | break; | |
2229 | case 128: | |
2230 | WARN_ONCE(1, | |
2231 | "128-bit pixels are not supported for display!"); | |
2232 | tile_height = 16; | |
2233 | break; | |
2234 | } | |
2235 | break; | |
2236 | default: | |
2237 | MISSING_CASE(fb_format_modifier); | |
2238 | tile_height = 1; | |
2239 | break; | |
2240 | } | |
091df6cb | 2241 | |
a57ce0b2 JB |
2242 | return ALIGN(height, tile_height); |
2243 | } | |
2244 | ||
127bd2ac | 2245 | int |
850c4cdc TU |
2246 | intel_pin_and_fence_fb_obj(struct drm_plane *plane, |
2247 | struct drm_framebuffer *fb, | |
a4872ba6 | 2248 | struct intel_engine_cs *pipelined) |
6b95a207 | 2249 | { |
850c4cdc | 2250 | struct drm_device *dev = fb->dev; |
ce453d81 | 2251 | struct drm_i915_private *dev_priv = dev->dev_private; |
850c4cdc | 2252 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
6b95a207 KH |
2253 | u32 alignment; |
2254 | int ret; | |
2255 | ||
ebcdd39e MR |
2256 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
2257 | ||
7b911adc TU |
2258 | switch (fb->modifier[0]) { |
2259 | case DRM_FORMAT_MOD_NONE: | |
1fada4cc DL |
2260 | if (INTEL_INFO(dev)->gen >= 9) |
2261 | alignment = 256 * 1024; | |
2262 | else if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) | |
534843da | 2263 | alignment = 128 * 1024; |
a6c45cf0 | 2264 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
2265 | alignment = 4 * 1024; |
2266 | else | |
2267 | alignment = 64 * 1024; | |
6b95a207 | 2268 | break; |
7b911adc | 2269 | case I915_FORMAT_MOD_X_TILED: |
1fada4cc DL |
2270 | if (INTEL_INFO(dev)->gen >= 9) |
2271 | alignment = 256 * 1024; | |
2272 | else { | |
2273 | /* pin() will align the object as required by fence */ | |
2274 | alignment = 0; | |
2275 | } | |
6b95a207 | 2276 | break; |
7b911adc | 2277 | case I915_FORMAT_MOD_Y_TILED: |
1327b9a1 DL |
2278 | case I915_FORMAT_MOD_Yf_TILED: |
2279 | if (WARN_ONCE(INTEL_INFO(dev)->gen < 9, | |
2280 | "Y tiling bo slipped through, driver bug!\n")) | |
2281 | return -EINVAL; | |
2282 | alignment = 1 * 1024 * 1024; | |
2283 | break; | |
6b95a207 | 2284 | default: |
7b911adc TU |
2285 | MISSING_CASE(fb->modifier[0]); |
2286 | return -EINVAL; | |
6b95a207 KH |
2287 | } |
2288 | ||
693db184 CW |
2289 | /* Note that the w/a also requires 64 PTE of padding following the |
2290 | * bo. We currently fill all unused PTE with the shadow page and so | |
2291 | * we should always have valid PTE following the scanout preventing | |
2292 | * the VT-d warning. | |
2293 | */ | |
2294 | if (need_vtd_wa(dev) && alignment < 256 * 1024) | |
2295 | alignment = 256 * 1024; | |
2296 | ||
d6dd6843 PZ |
2297 | /* |
2298 | * Global gtt pte registers are special registers which actually forward | |
2299 | * writes to a chunk of system memory. Which means that there is no risk | |
2300 | * that the register values disappear as soon as we call | |
2301 | * intel_runtime_pm_put(), so it is correct to wrap only the | |
2302 | * pin/unpin/fence and not more. | |
2303 | */ | |
2304 | intel_runtime_pm_get(dev_priv); | |
2305 | ||
ce453d81 | 2306 | dev_priv->mm.interruptible = false; |
2da3b9b9 | 2307 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
48b956c5 | 2308 | if (ret) |
ce453d81 | 2309 | goto err_interruptible; |
6b95a207 KH |
2310 | |
2311 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
2312 | * fence, whereas 965+ only requires a fence if using | |
2313 | * framebuffer compression. For simplicity, we always install | |
2314 | * a fence as the cost is not that onerous. | |
2315 | */ | |
06d98131 | 2316 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
2317 | if (ret) |
2318 | goto err_unpin; | |
1690e1eb | 2319 | |
9a5a53b3 | 2320 | i915_gem_object_pin_fence(obj); |
6b95a207 | 2321 | |
ce453d81 | 2322 | dev_priv->mm.interruptible = true; |
d6dd6843 | 2323 | intel_runtime_pm_put(dev_priv); |
6b95a207 | 2324 | return 0; |
48b956c5 CW |
2325 | |
2326 | err_unpin: | |
cc98b413 | 2327 | i915_gem_object_unpin_from_display_plane(obj); |
ce453d81 CW |
2328 | err_interruptible: |
2329 | dev_priv->mm.interruptible = true; | |
d6dd6843 | 2330 | intel_runtime_pm_put(dev_priv); |
48b956c5 | 2331 | return ret; |
6b95a207 KH |
2332 | } |
2333 | ||
f63bdb5f | 2334 | static void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
1690e1eb | 2335 | { |
ebcdd39e MR |
2336 | WARN_ON(!mutex_is_locked(&obj->base.dev->struct_mutex)); |
2337 | ||
1690e1eb | 2338 | i915_gem_object_unpin_fence(obj); |
cc98b413 | 2339 | i915_gem_object_unpin_from_display_plane(obj); |
1690e1eb CW |
2340 | } |
2341 | ||
c2c75131 DV |
2342 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
2343 | * is assumed to be a power-of-two. */ | |
bc752862 CW |
2344 | unsigned long intel_gen4_compute_page_offset(int *x, int *y, |
2345 | unsigned int tiling_mode, | |
2346 | unsigned int cpp, | |
2347 | unsigned int pitch) | |
c2c75131 | 2348 | { |
bc752862 CW |
2349 | if (tiling_mode != I915_TILING_NONE) { |
2350 | unsigned int tile_rows, tiles; | |
c2c75131 | 2351 | |
bc752862 CW |
2352 | tile_rows = *y / 8; |
2353 | *y %= 8; | |
c2c75131 | 2354 | |
bc752862 CW |
2355 | tiles = *x / (512/cpp); |
2356 | *x %= 512/cpp; | |
2357 | ||
2358 | return tile_rows * pitch * 8 + tiles * 4096; | |
2359 | } else { | |
2360 | unsigned int offset; | |
2361 | ||
2362 | offset = *y * pitch + *x * cpp; | |
2363 | *y = 0; | |
2364 | *x = (offset & 4095) / cpp; | |
2365 | return offset & -4096; | |
2366 | } | |
c2c75131 DV |
2367 | } |
2368 | ||
b35d63fa | 2369 | static int i9xx_format_to_fourcc(int format) |
46f297fb JB |
2370 | { |
2371 | switch (format) { | |
2372 | case DISPPLANE_8BPP: | |
2373 | return DRM_FORMAT_C8; | |
2374 | case DISPPLANE_BGRX555: | |
2375 | return DRM_FORMAT_XRGB1555; | |
2376 | case DISPPLANE_BGRX565: | |
2377 | return DRM_FORMAT_RGB565; | |
2378 | default: | |
2379 | case DISPPLANE_BGRX888: | |
2380 | return DRM_FORMAT_XRGB8888; | |
2381 | case DISPPLANE_RGBX888: | |
2382 | return DRM_FORMAT_XBGR8888; | |
2383 | case DISPPLANE_BGRX101010: | |
2384 | return DRM_FORMAT_XRGB2101010; | |
2385 | case DISPPLANE_RGBX101010: | |
2386 | return DRM_FORMAT_XBGR2101010; | |
2387 | } | |
2388 | } | |
2389 | ||
bc8d7dff DL |
2390 | static int skl_format_to_fourcc(int format, bool rgb_order, bool alpha) |
2391 | { | |
2392 | switch (format) { | |
2393 | case PLANE_CTL_FORMAT_RGB_565: | |
2394 | return DRM_FORMAT_RGB565; | |
2395 | default: | |
2396 | case PLANE_CTL_FORMAT_XRGB_8888: | |
2397 | if (rgb_order) { | |
2398 | if (alpha) | |
2399 | return DRM_FORMAT_ABGR8888; | |
2400 | else | |
2401 | return DRM_FORMAT_XBGR8888; | |
2402 | } else { | |
2403 | if (alpha) | |
2404 | return DRM_FORMAT_ARGB8888; | |
2405 | else | |
2406 | return DRM_FORMAT_XRGB8888; | |
2407 | } | |
2408 | case PLANE_CTL_FORMAT_XRGB_2101010: | |
2409 | if (rgb_order) | |
2410 | return DRM_FORMAT_XBGR2101010; | |
2411 | else | |
2412 | return DRM_FORMAT_XRGB2101010; | |
2413 | } | |
2414 | } | |
2415 | ||
5724dbd1 DL |
2416 | static bool |
2417 | intel_alloc_plane_obj(struct intel_crtc *crtc, | |
2418 | struct intel_initial_plane_config *plane_config) | |
46f297fb JB |
2419 | { |
2420 | struct drm_device *dev = crtc->base.dev; | |
2421 | struct drm_i915_gem_object *obj = NULL; | |
2422 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; | |
2d14030b | 2423 | struct drm_framebuffer *fb = &plane_config->fb->base; |
f37b5c2b DV |
2424 | u32 base_aligned = round_down(plane_config->base, PAGE_SIZE); |
2425 | u32 size_aligned = round_up(plane_config->base + plane_config->size, | |
2426 | PAGE_SIZE); | |
2427 | ||
2428 | size_aligned -= base_aligned; | |
46f297fb | 2429 | |
ff2652ea CW |
2430 | if (plane_config->size == 0) |
2431 | return false; | |
2432 | ||
f37b5c2b DV |
2433 | obj = i915_gem_object_create_stolen_for_preallocated(dev, |
2434 | base_aligned, | |
2435 | base_aligned, | |
2436 | size_aligned); | |
46f297fb | 2437 | if (!obj) |
484b41dd | 2438 | return false; |
46f297fb | 2439 | |
49af449b DL |
2440 | obj->tiling_mode = plane_config->tiling; |
2441 | if (obj->tiling_mode == I915_TILING_X) | |
6bf129df | 2442 | obj->stride = fb->pitches[0]; |
46f297fb | 2443 | |
6bf129df DL |
2444 | mode_cmd.pixel_format = fb->pixel_format; |
2445 | mode_cmd.width = fb->width; | |
2446 | mode_cmd.height = fb->height; | |
2447 | mode_cmd.pitches[0] = fb->pitches[0]; | |
18c5247e DV |
2448 | mode_cmd.modifier[0] = fb->modifier[0]; |
2449 | mode_cmd.flags = DRM_MODE_FB_MODIFIERS; | |
46f297fb JB |
2450 | |
2451 | mutex_lock(&dev->struct_mutex); | |
2452 | ||
6bf129df | 2453 | if (intel_framebuffer_init(dev, to_intel_framebuffer(fb), |
484b41dd | 2454 | &mode_cmd, obj)) { |
46f297fb JB |
2455 | DRM_DEBUG_KMS("intel fb init failed\n"); |
2456 | goto out_unref_obj; | |
2457 | } | |
2458 | ||
a071fa00 | 2459 | obj->frontbuffer_bits = INTEL_FRONTBUFFER_PRIMARY(crtc->pipe); |
46f297fb | 2460 | mutex_unlock(&dev->struct_mutex); |
484b41dd JB |
2461 | |
2462 | DRM_DEBUG_KMS("plane fb obj %p\n", obj); | |
2463 | return true; | |
46f297fb JB |
2464 | |
2465 | out_unref_obj: | |
2466 | drm_gem_object_unreference(&obj->base); | |
2467 | mutex_unlock(&dev->struct_mutex); | |
484b41dd JB |
2468 | return false; |
2469 | } | |
2470 | ||
afd65eb4 MR |
2471 | /* Update plane->state->fb to match plane->fb after driver-internal updates */ |
2472 | static void | |
2473 | update_state_fb(struct drm_plane *plane) | |
2474 | { | |
2475 | if (plane->fb == plane->state->fb) | |
2476 | return; | |
2477 | ||
2478 | if (plane->state->fb) | |
2479 | drm_framebuffer_unreference(plane->state->fb); | |
2480 | plane->state->fb = plane->fb; | |
2481 | if (plane->state->fb) | |
2482 | drm_framebuffer_reference(plane->state->fb); | |
2483 | } | |
2484 | ||
5724dbd1 DL |
2485 | static void |
2486 | intel_find_plane_obj(struct intel_crtc *intel_crtc, | |
2487 | struct intel_initial_plane_config *plane_config) | |
484b41dd JB |
2488 | { |
2489 | struct drm_device *dev = intel_crtc->base.dev; | |
d9ceb816 | 2490 | struct drm_i915_private *dev_priv = dev->dev_private; |
484b41dd JB |
2491 | struct drm_crtc *c; |
2492 | struct intel_crtc *i; | |
2ff8fde1 | 2493 | struct drm_i915_gem_object *obj; |
484b41dd | 2494 | |
2d14030b | 2495 | if (!plane_config->fb) |
484b41dd JB |
2496 | return; |
2497 | ||
f55548b5 | 2498 | if (intel_alloc_plane_obj(intel_crtc, plane_config)) { |
fb9981aa DL |
2499 | struct drm_plane *primary = intel_crtc->base.primary; |
2500 | ||
2501 | primary->fb = &plane_config->fb->base; | |
2502 | primary->state->crtc = &intel_crtc->base; | |
2503 | update_state_fb(primary); | |
2504 | ||
484b41dd | 2505 | return; |
f55548b5 | 2506 | } |
484b41dd | 2507 | |
2d14030b | 2508 | kfree(plane_config->fb); |
484b41dd JB |
2509 | |
2510 | /* | |
2511 | * Failed to alloc the obj, check to see if we should share | |
2512 | * an fb with another CRTC instead | |
2513 | */ | |
70e1e0ec | 2514 | for_each_crtc(dev, c) { |
484b41dd JB |
2515 | i = to_intel_crtc(c); |
2516 | ||
2517 | if (c == &intel_crtc->base) | |
2518 | continue; | |
2519 | ||
2ff8fde1 MR |
2520 | if (!i->active) |
2521 | continue; | |
2522 | ||
2523 | obj = intel_fb_obj(c->primary->fb); | |
2524 | if (obj == NULL) | |
484b41dd JB |
2525 | continue; |
2526 | ||
2ff8fde1 | 2527 | if (i915_gem_obj_ggtt_offset(obj) == plane_config->base) { |
fb9981aa DL |
2528 | struct drm_plane *primary = intel_crtc->base.primary; |
2529 | ||
d9ceb816 JB |
2530 | if (obj->tiling_mode != I915_TILING_NONE) |
2531 | dev_priv->preserve_bios_swizzle = true; | |
2532 | ||
66e514c1 | 2533 | drm_framebuffer_reference(c->primary->fb); |
fb9981aa DL |
2534 | primary->fb = c->primary->fb; |
2535 | primary->state->crtc = &intel_crtc->base; | |
5ba76c41 | 2536 | update_state_fb(intel_crtc->base.primary); |
2ff8fde1 | 2537 | obj->frontbuffer_bits |= INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe); |
484b41dd JB |
2538 | break; |
2539 | } | |
2540 | } | |
46f297fb JB |
2541 | } |
2542 | ||
29b9bde6 DV |
2543 | static void i9xx_update_primary_plane(struct drm_crtc *crtc, |
2544 | struct drm_framebuffer *fb, | |
2545 | int x, int y) | |
81255565 JB |
2546 | { |
2547 | struct drm_device *dev = crtc->dev; | |
2548 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2549 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
c9ba6fad | 2550 | struct drm_i915_gem_object *obj; |
81255565 | 2551 | int plane = intel_crtc->plane; |
e506a0c6 | 2552 | unsigned long linear_offset; |
81255565 | 2553 | u32 dspcntr; |
f45651ba | 2554 | u32 reg = DSPCNTR(plane); |
48404c1e | 2555 | int pixel_size; |
f45651ba | 2556 | |
fdd508a6 VS |
2557 | if (!intel_crtc->primary_enabled) { |
2558 | I915_WRITE(reg, 0); | |
2559 | if (INTEL_INFO(dev)->gen >= 4) | |
2560 | I915_WRITE(DSPSURF(plane), 0); | |
2561 | else | |
2562 | I915_WRITE(DSPADDR(plane), 0); | |
2563 | POSTING_READ(reg); | |
2564 | return; | |
2565 | } | |
2566 | ||
c9ba6fad VS |
2567 | obj = intel_fb_obj(fb); |
2568 | if (WARN_ON(obj == NULL)) | |
2569 | return; | |
2570 | ||
2571 | pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); | |
2572 | ||
f45651ba VS |
2573 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
2574 | ||
fdd508a6 | 2575 | dspcntr |= DISPLAY_PLANE_ENABLE; |
f45651ba VS |
2576 | |
2577 | if (INTEL_INFO(dev)->gen < 4) { | |
2578 | if (intel_crtc->pipe == PIPE_B) | |
2579 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
2580 | ||
2581 | /* pipesrc and dspsize control the size that is scaled from, | |
2582 | * which should always be the user's requested size. | |
2583 | */ | |
2584 | I915_WRITE(DSPSIZE(plane), | |
6e3c9717 ACO |
2585 | ((intel_crtc->config->pipe_src_h - 1) << 16) | |
2586 | (intel_crtc->config->pipe_src_w - 1)); | |
f45651ba | 2587 | I915_WRITE(DSPPOS(plane), 0); |
c14b0485 VS |
2588 | } else if (IS_CHERRYVIEW(dev) && plane == PLANE_B) { |
2589 | I915_WRITE(PRIMSIZE(plane), | |
6e3c9717 ACO |
2590 | ((intel_crtc->config->pipe_src_h - 1) << 16) | |
2591 | (intel_crtc->config->pipe_src_w - 1)); | |
c14b0485 VS |
2592 | I915_WRITE(PRIMPOS(plane), 0); |
2593 | I915_WRITE(PRIMCNSTALPHA(plane), 0); | |
f45651ba | 2594 | } |
81255565 | 2595 | |
57779d06 VS |
2596 | switch (fb->pixel_format) { |
2597 | case DRM_FORMAT_C8: | |
81255565 JB |
2598 | dspcntr |= DISPPLANE_8BPP; |
2599 | break; | |
57779d06 VS |
2600 | case DRM_FORMAT_XRGB1555: |
2601 | case DRM_FORMAT_ARGB1555: | |
2602 | dspcntr |= DISPPLANE_BGRX555; | |
81255565 | 2603 | break; |
57779d06 VS |
2604 | case DRM_FORMAT_RGB565: |
2605 | dspcntr |= DISPPLANE_BGRX565; | |
2606 | break; | |
2607 | case DRM_FORMAT_XRGB8888: | |
2608 | case DRM_FORMAT_ARGB8888: | |
2609 | dspcntr |= DISPPLANE_BGRX888; | |
2610 | break; | |
2611 | case DRM_FORMAT_XBGR8888: | |
2612 | case DRM_FORMAT_ABGR8888: | |
2613 | dspcntr |= DISPPLANE_RGBX888; | |
2614 | break; | |
2615 | case DRM_FORMAT_XRGB2101010: | |
2616 | case DRM_FORMAT_ARGB2101010: | |
2617 | dspcntr |= DISPPLANE_BGRX101010; | |
2618 | break; | |
2619 | case DRM_FORMAT_XBGR2101010: | |
2620 | case DRM_FORMAT_ABGR2101010: | |
2621 | dspcntr |= DISPPLANE_RGBX101010; | |
81255565 JB |
2622 | break; |
2623 | default: | |
baba133a | 2624 | BUG(); |
81255565 | 2625 | } |
57779d06 | 2626 | |
f45651ba VS |
2627 | if (INTEL_INFO(dev)->gen >= 4 && |
2628 | obj->tiling_mode != I915_TILING_NONE) | |
2629 | dspcntr |= DISPPLANE_TILED; | |
81255565 | 2630 | |
de1aa629 VS |
2631 | if (IS_G4X(dev)) |
2632 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2633 | ||
b9897127 | 2634 | linear_offset = y * fb->pitches[0] + x * pixel_size; |
81255565 | 2635 | |
c2c75131 DV |
2636 | if (INTEL_INFO(dev)->gen >= 4) { |
2637 | intel_crtc->dspaddr_offset = | |
bc752862 | 2638 | intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode, |
b9897127 | 2639 | pixel_size, |
bc752862 | 2640 | fb->pitches[0]); |
c2c75131 DV |
2641 | linear_offset -= intel_crtc->dspaddr_offset; |
2642 | } else { | |
e506a0c6 | 2643 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 2644 | } |
e506a0c6 | 2645 | |
8e7d688b | 2646 | if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180)) { |
48404c1e SJ |
2647 | dspcntr |= DISPPLANE_ROTATE_180; |
2648 | ||
6e3c9717 ACO |
2649 | x += (intel_crtc->config->pipe_src_w - 1); |
2650 | y += (intel_crtc->config->pipe_src_h - 1); | |
48404c1e SJ |
2651 | |
2652 | /* Finding the last pixel of the last line of the display | |
2653 | data and adding to linear_offset*/ | |
2654 | linear_offset += | |
6e3c9717 ACO |
2655 | (intel_crtc->config->pipe_src_h - 1) * fb->pitches[0] + |
2656 | (intel_crtc->config->pipe_src_w - 1) * pixel_size; | |
48404c1e SJ |
2657 | } |
2658 | ||
2659 | I915_WRITE(reg, dspcntr); | |
2660 | ||
01f2c773 | 2661 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 2662 | if (INTEL_INFO(dev)->gen >= 4) { |
85ba7b7d DV |
2663 | I915_WRITE(DSPSURF(plane), |
2664 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset); | |
5eddb70b | 2665 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2666 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 2667 | } else |
f343c5f6 | 2668 | I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset); |
5eddb70b | 2669 | POSTING_READ(reg); |
17638cd6 JB |
2670 | } |
2671 | ||
29b9bde6 DV |
2672 | static void ironlake_update_primary_plane(struct drm_crtc *crtc, |
2673 | struct drm_framebuffer *fb, | |
2674 | int x, int y) | |
17638cd6 JB |
2675 | { |
2676 | struct drm_device *dev = crtc->dev; | |
2677 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2678 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
c9ba6fad | 2679 | struct drm_i915_gem_object *obj; |
17638cd6 | 2680 | int plane = intel_crtc->plane; |
e506a0c6 | 2681 | unsigned long linear_offset; |
17638cd6 | 2682 | u32 dspcntr; |
f45651ba | 2683 | u32 reg = DSPCNTR(plane); |
48404c1e | 2684 | int pixel_size; |
f45651ba | 2685 | |
fdd508a6 VS |
2686 | if (!intel_crtc->primary_enabled) { |
2687 | I915_WRITE(reg, 0); | |
2688 | I915_WRITE(DSPSURF(plane), 0); | |
2689 | POSTING_READ(reg); | |
2690 | return; | |
2691 | } | |
2692 | ||
c9ba6fad VS |
2693 | obj = intel_fb_obj(fb); |
2694 | if (WARN_ON(obj == NULL)) | |
2695 | return; | |
2696 | ||
2697 | pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); | |
2698 | ||
f45651ba VS |
2699 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
2700 | ||
fdd508a6 | 2701 | dspcntr |= DISPLAY_PLANE_ENABLE; |
f45651ba VS |
2702 | |
2703 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) | |
2704 | dspcntr |= DISPPLANE_PIPE_CSC_ENABLE; | |
17638cd6 | 2705 | |
57779d06 VS |
2706 | switch (fb->pixel_format) { |
2707 | case DRM_FORMAT_C8: | |
17638cd6 JB |
2708 | dspcntr |= DISPPLANE_8BPP; |
2709 | break; | |
57779d06 VS |
2710 | case DRM_FORMAT_RGB565: |
2711 | dspcntr |= DISPPLANE_BGRX565; | |
17638cd6 | 2712 | break; |
57779d06 VS |
2713 | case DRM_FORMAT_XRGB8888: |
2714 | case DRM_FORMAT_ARGB8888: | |
2715 | dspcntr |= DISPPLANE_BGRX888; | |
2716 | break; | |
2717 | case DRM_FORMAT_XBGR8888: | |
2718 | case DRM_FORMAT_ABGR8888: | |
2719 | dspcntr |= DISPPLANE_RGBX888; | |
2720 | break; | |
2721 | case DRM_FORMAT_XRGB2101010: | |
2722 | case DRM_FORMAT_ARGB2101010: | |
2723 | dspcntr |= DISPPLANE_BGRX101010; | |
2724 | break; | |
2725 | case DRM_FORMAT_XBGR2101010: | |
2726 | case DRM_FORMAT_ABGR2101010: | |
2727 | dspcntr |= DISPPLANE_RGBX101010; | |
17638cd6 JB |
2728 | break; |
2729 | default: | |
baba133a | 2730 | BUG(); |
17638cd6 JB |
2731 | } |
2732 | ||
2733 | if (obj->tiling_mode != I915_TILING_NONE) | |
2734 | dspcntr |= DISPPLANE_TILED; | |
17638cd6 | 2735 | |
f45651ba | 2736 | if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) |
1f5d76db | 2737 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; |
17638cd6 | 2738 | |
b9897127 | 2739 | linear_offset = y * fb->pitches[0] + x * pixel_size; |
c2c75131 | 2740 | intel_crtc->dspaddr_offset = |
bc752862 | 2741 | intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode, |
b9897127 | 2742 | pixel_size, |
bc752862 | 2743 | fb->pitches[0]); |
c2c75131 | 2744 | linear_offset -= intel_crtc->dspaddr_offset; |
8e7d688b | 2745 | if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180)) { |
48404c1e SJ |
2746 | dspcntr |= DISPPLANE_ROTATE_180; |
2747 | ||
2748 | if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) { | |
6e3c9717 ACO |
2749 | x += (intel_crtc->config->pipe_src_w - 1); |
2750 | y += (intel_crtc->config->pipe_src_h - 1); | |
48404c1e SJ |
2751 | |
2752 | /* Finding the last pixel of the last line of the display | |
2753 | data and adding to linear_offset*/ | |
2754 | linear_offset += | |
6e3c9717 ACO |
2755 | (intel_crtc->config->pipe_src_h - 1) * fb->pitches[0] + |
2756 | (intel_crtc->config->pipe_src_w - 1) * pixel_size; | |
48404c1e SJ |
2757 | } |
2758 | } | |
2759 | ||
2760 | I915_WRITE(reg, dspcntr); | |
17638cd6 | 2761 | |
01f2c773 | 2762 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
85ba7b7d DV |
2763 | I915_WRITE(DSPSURF(plane), |
2764 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset); | |
b3dc685e | 2765 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
bc1c91eb DL |
2766 | I915_WRITE(DSPOFFSET(plane), (y << 16) | x); |
2767 | } else { | |
2768 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); | |
2769 | I915_WRITE(DSPLINOFF(plane), linear_offset); | |
2770 | } | |
17638cd6 | 2771 | POSTING_READ(reg); |
17638cd6 JB |
2772 | } |
2773 | ||
b321803d DL |
2774 | u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier, |
2775 | uint32_t pixel_format) | |
2776 | { | |
2777 | u32 bits_per_pixel = drm_format_plane_cpp(pixel_format, 0) * 8; | |
2778 | ||
2779 | /* | |
2780 | * The stride is either expressed as a multiple of 64 bytes | |
2781 | * chunks for linear buffers or in number of tiles for tiled | |
2782 | * buffers. | |
2783 | */ | |
2784 | switch (fb_modifier) { | |
2785 | case DRM_FORMAT_MOD_NONE: | |
2786 | return 64; | |
2787 | case I915_FORMAT_MOD_X_TILED: | |
2788 | if (INTEL_INFO(dev)->gen == 2) | |
2789 | return 128; | |
2790 | return 512; | |
2791 | case I915_FORMAT_MOD_Y_TILED: | |
2792 | /* No need to check for old gens and Y tiling since this is | |
2793 | * about the display engine and those will be blocked before | |
2794 | * we get here. | |
2795 | */ | |
2796 | return 128; | |
2797 | case I915_FORMAT_MOD_Yf_TILED: | |
2798 | if (bits_per_pixel == 8) | |
2799 | return 64; | |
2800 | else | |
2801 | return 128; | |
2802 | default: | |
2803 | MISSING_CASE(fb_modifier); | |
2804 | return 64; | |
2805 | } | |
2806 | } | |
2807 | ||
70d21f0e DL |
2808 | static void skylake_update_primary_plane(struct drm_crtc *crtc, |
2809 | struct drm_framebuffer *fb, | |
2810 | int x, int y) | |
2811 | { | |
2812 | struct drm_device *dev = crtc->dev; | |
2813 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2814 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
70d21f0e DL |
2815 | struct drm_i915_gem_object *obj; |
2816 | int pipe = intel_crtc->pipe; | |
b321803d | 2817 | u32 plane_ctl, stride_div; |
70d21f0e DL |
2818 | |
2819 | if (!intel_crtc->primary_enabled) { | |
2820 | I915_WRITE(PLANE_CTL(pipe, 0), 0); | |
2821 | I915_WRITE(PLANE_SURF(pipe, 0), 0); | |
2822 | POSTING_READ(PLANE_CTL(pipe, 0)); | |
2823 | return; | |
2824 | } | |
2825 | ||
2826 | plane_ctl = PLANE_CTL_ENABLE | | |
2827 | PLANE_CTL_PIPE_GAMMA_ENABLE | | |
2828 | PLANE_CTL_PIPE_CSC_ENABLE; | |
2829 | ||
2830 | switch (fb->pixel_format) { | |
2831 | case DRM_FORMAT_RGB565: | |
2832 | plane_ctl |= PLANE_CTL_FORMAT_RGB_565; | |
2833 | break; | |
2834 | case DRM_FORMAT_XRGB8888: | |
2835 | plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888; | |
2836 | break; | |
f75fb42a JN |
2837 | case DRM_FORMAT_ARGB8888: |
2838 | plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888; | |
2839 | plane_ctl |= PLANE_CTL_ALPHA_SW_PREMULTIPLY; | |
2840 | break; | |
70d21f0e DL |
2841 | case DRM_FORMAT_XBGR8888: |
2842 | plane_ctl |= PLANE_CTL_ORDER_RGBX; | |
2843 | plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888; | |
2844 | break; | |
f75fb42a JN |
2845 | case DRM_FORMAT_ABGR8888: |
2846 | plane_ctl |= PLANE_CTL_ORDER_RGBX; | |
2847 | plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888; | |
2848 | plane_ctl |= PLANE_CTL_ALPHA_SW_PREMULTIPLY; | |
2849 | break; | |
70d21f0e DL |
2850 | case DRM_FORMAT_XRGB2101010: |
2851 | plane_ctl |= PLANE_CTL_FORMAT_XRGB_2101010; | |
2852 | break; | |
2853 | case DRM_FORMAT_XBGR2101010: | |
2854 | plane_ctl |= PLANE_CTL_ORDER_RGBX; | |
2855 | plane_ctl |= PLANE_CTL_FORMAT_XRGB_2101010; | |
2856 | break; | |
2857 | default: | |
2858 | BUG(); | |
2859 | } | |
2860 | ||
30af77c4 DV |
2861 | switch (fb->modifier[0]) { |
2862 | case DRM_FORMAT_MOD_NONE: | |
70d21f0e | 2863 | break; |
30af77c4 | 2864 | case I915_FORMAT_MOD_X_TILED: |
70d21f0e | 2865 | plane_ctl |= PLANE_CTL_TILED_X; |
b321803d DL |
2866 | break; |
2867 | case I915_FORMAT_MOD_Y_TILED: | |
2868 | plane_ctl |= PLANE_CTL_TILED_Y; | |
2869 | break; | |
2870 | case I915_FORMAT_MOD_Yf_TILED: | |
2871 | plane_ctl |= PLANE_CTL_TILED_YF; | |
70d21f0e DL |
2872 | break; |
2873 | default: | |
b321803d | 2874 | MISSING_CASE(fb->modifier[0]); |
70d21f0e DL |
2875 | } |
2876 | ||
2877 | plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE; | |
8e7d688b | 2878 | if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180)) |
1447dde0 | 2879 | plane_ctl |= PLANE_CTL_ROTATE_180; |
70d21f0e | 2880 | |
b321803d DL |
2881 | obj = intel_fb_obj(fb); |
2882 | stride_div = intel_fb_stride_alignment(dev, fb->modifier[0], | |
2883 | fb->pixel_format); | |
2884 | ||
70d21f0e DL |
2885 | I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl); |
2886 | ||
70d21f0e DL |
2887 | I915_WRITE(PLANE_POS(pipe, 0), 0); |
2888 | I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x); | |
2889 | I915_WRITE(PLANE_SIZE(pipe, 0), | |
6e3c9717 ACO |
2890 | (intel_crtc->config->pipe_src_h - 1) << 16 | |
2891 | (intel_crtc->config->pipe_src_w - 1)); | |
b321803d | 2892 | I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div); |
70d21f0e DL |
2893 | I915_WRITE(PLANE_SURF(pipe, 0), i915_gem_obj_ggtt_offset(obj)); |
2894 | ||
2895 | POSTING_READ(PLANE_SURF(pipe, 0)); | |
2896 | } | |
2897 | ||
17638cd6 JB |
2898 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ |
2899 | static int | |
2900 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
2901 | int x, int y, enum mode_set_atomic state) | |
2902 | { | |
2903 | struct drm_device *dev = crtc->dev; | |
2904 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 2905 | |
6b8e6ed0 CW |
2906 | if (dev_priv->display.disable_fbc) |
2907 | dev_priv->display.disable_fbc(dev); | |
81255565 | 2908 | |
29b9bde6 DV |
2909 | dev_priv->display.update_primary_plane(crtc, fb, x, y); |
2910 | ||
2911 | return 0; | |
81255565 JB |
2912 | } |
2913 | ||
7514747d | 2914 | static void intel_complete_page_flips(struct drm_device *dev) |
96a02917 | 2915 | { |
96a02917 VS |
2916 | struct drm_crtc *crtc; |
2917 | ||
70e1e0ec | 2918 | for_each_crtc(dev, crtc) { |
96a02917 VS |
2919 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
2920 | enum plane plane = intel_crtc->plane; | |
2921 | ||
2922 | intel_prepare_page_flip(dev, plane); | |
2923 | intel_finish_page_flip_plane(dev, plane); | |
2924 | } | |
7514747d VS |
2925 | } |
2926 | ||
2927 | static void intel_update_primary_planes(struct drm_device *dev) | |
2928 | { | |
2929 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2930 | struct drm_crtc *crtc; | |
96a02917 | 2931 | |
70e1e0ec | 2932 | for_each_crtc(dev, crtc) { |
96a02917 VS |
2933 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
2934 | ||
51fd371b | 2935 | drm_modeset_lock(&crtc->mutex, NULL); |
947fdaad CW |
2936 | /* |
2937 | * FIXME: Once we have proper support for primary planes (and | |
2938 | * disabling them without disabling the entire crtc) allow again | |
66e514c1 | 2939 | * a NULL crtc->primary->fb. |
947fdaad | 2940 | */ |
f4510a27 | 2941 | if (intel_crtc->active && crtc->primary->fb) |
262ca2b0 | 2942 | dev_priv->display.update_primary_plane(crtc, |
66e514c1 | 2943 | crtc->primary->fb, |
262ca2b0 MR |
2944 | crtc->x, |
2945 | crtc->y); | |
51fd371b | 2946 | drm_modeset_unlock(&crtc->mutex); |
96a02917 VS |
2947 | } |
2948 | } | |
2949 | ||
7514747d VS |
2950 | void intel_prepare_reset(struct drm_device *dev) |
2951 | { | |
f98ce92f VS |
2952 | struct drm_i915_private *dev_priv = to_i915(dev); |
2953 | struct intel_crtc *crtc; | |
2954 | ||
7514747d VS |
2955 | /* no reset support for gen2 */ |
2956 | if (IS_GEN2(dev)) | |
2957 | return; | |
2958 | ||
2959 | /* reset doesn't touch the display */ | |
2960 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) | |
2961 | return; | |
2962 | ||
2963 | drm_modeset_lock_all(dev); | |
f98ce92f VS |
2964 | |
2965 | /* | |
2966 | * Disabling the crtcs gracefully seems nicer. Also the | |
2967 | * g33 docs say we should at least disable all the planes. | |
2968 | */ | |
2969 | for_each_intel_crtc(dev, crtc) { | |
2970 | if (crtc->active) | |
2971 | dev_priv->display.crtc_disable(&crtc->base); | |
2972 | } | |
7514747d VS |
2973 | } |
2974 | ||
2975 | void intel_finish_reset(struct drm_device *dev) | |
2976 | { | |
2977 | struct drm_i915_private *dev_priv = to_i915(dev); | |
2978 | ||
2979 | /* | |
2980 | * Flips in the rings will be nuked by the reset, | |
2981 | * so complete all pending flips so that user space | |
2982 | * will get its events and not get stuck. | |
2983 | */ | |
2984 | intel_complete_page_flips(dev); | |
2985 | ||
2986 | /* no reset support for gen2 */ | |
2987 | if (IS_GEN2(dev)) | |
2988 | return; | |
2989 | ||
2990 | /* reset doesn't touch the display */ | |
2991 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) { | |
2992 | /* | |
2993 | * Flips in the rings have been nuked by the reset, | |
2994 | * so update the base address of all primary | |
2995 | * planes to the the last fb to make sure we're | |
2996 | * showing the correct fb after a reset. | |
2997 | */ | |
2998 | intel_update_primary_planes(dev); | |
2999 | return; | |
3000 | } | |
3001 | ||
3002 | /* | |
3003 | * The display has been reset as well, | |
3004 | * so need a full re-initialization. | |
3005 | */ | |
3006 | intel_runtime_pm_disable_interrupts(dev_priv); | |
3007 | intel_runtime_pm_enable_interrupts(dev_priv); | |
3008 | ||
3009 | intel_modeset_init_hw(dev); | |
3010 | ||
3011 | spin_lock_irq(&dev_priv->irq_lock); | |
3012 | if (dev_priv->display.hpd_irq_setup) | |
3013 | dev_priv->display.hpd_irq_setup(dev); | |
3014 | spin_unlock_irq(&dev_priv->irq_lock); | |
3015 | ||
3016 | intel_modeset_setup_hw_state(dev, true); | |
3017 | ||
3018 | intel_hpd_init(dev_priv); | |
3019 | ||
3020 | drm_modeset_unlock_all(dev); | |
3021 | } | |
3022 | ||
14667a4b CW |
3023 | static int |
3024 | intel_finish_fb(struct drm_framebuffer *old_fb) | |
3025 | { | |
2ff8fde1 | 3026 | struct drm_i915_gem_object *obj = intel_fb_obj(old_fb); |
14667a4b CW |
3027 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
3028 | bool was_interruptible = dev_priv->mm.interruptible; | |
3029 | int ret; | |
3030 | ||
14667a4b CW |
3031 | /* Big Hammer, we also need to ensure that any pending |
3032 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
3033 | * current scanout is retired before unpinning the old | |
3034 | * framebuffer. | |
3035 | * | |
3036 | * This should only fail upon a hung GPU, in which case we | |
3037 | * can safely continue. | |
3038 | */ | |
3039 | dev_priv->mm.interruptible = false; | |
3040 | ret = i915_gem_object_finish_gpu(obj); | |
3041 | dev_priv->mm.interruptible = was_interruptible; | |
3042 | ||
3043 | return ret; | |
3044 | } | |
3045 | ||
7d5e3799 CW |
3046 | static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc) |
3047 | { | |
3048 | struct drm_device *dev = crtc->dev; | |
3049 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3050 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7d5e3799 CW |
3051 | bool pending; |
3052 | ||
3053 | if (i915_reset_in_progress(&dev_priv->gpu_error) || | |
3054 | intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) | |
3055 | return false; | |
3056 | ||
5e2d7afc | 3057 | spin_lock_irq(&dev->event_lock); |
7d5e3799 | 3058 | pending = to_intel_crtc(crtc)->unpin_work != NULL; |
5e2d7afc | 3059 | spin_unlock_irq(&dev->event_lock); |
7d5e3799 CW |
3060 | |
3061 | return pending; | |
3062 | } | |
3063 | ||
e30e8f75 GP |
3064 | static void intel_update_pipe_size(struct intel_crtc *crtc) |
3065 | { | |
3066 | struct drm_device *dev = crtc->base.dev; | |
3067 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3068 | const struct drm_display_mode *adjusted_mode; | |
3069 | ||
3070 | if (!i915.fastboot) | |
3071 | return; | |
3072 | ||
3073 | /* | |
3074 | * Update pipe size and adjust fitter if needed: the reason for this is | |
3075 | * that in compute_mode_changes we check the native mode (not the pfit | |
3076 | * mode) to see if we can flip rather than do a full mode set. In the | |
3077 | * fastboot case, we'll flip, but if we don't update the pipesrc and | |
3078 | * pfit state, we'll end up with a big fb scanned out into the wrong | |
3079 | * sized surface. | |
3080 | * | |
3081 | * To fix this properly, we need to hoist the checks up into | |
3082 | * compute_mode_changes (or above), check the actual pfit state and | |
3083 | * whether the platform allows pfit disable with pipe active, and only | |
3084 | * then update the pipesrc and pfit state, even on the flip path. | |
3085 | */ | |
3086 | ||
6e3c9717 | 3087 | adjusted_mode = &crtc->config->base.adjusted_mode; |
e30e8f75 GP |
3088 | |
3089 | I915_WRITE(PIPESRC(crtc->pipe), | |
3090 | ((adjusted_mode->crtc_hdisplay - 1) << 16) | | |
3091 | (adjusted_mode->crtc_vdisplay - 1)); | |
6e3c9717 | 3092 | if (!crtc->config->pch_pfit.enabled && |
409ee761 ACO |
3093 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || |
3094 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
e30e8f75 GP |
3095 | I915_WRITE(PF_CTL(crtc->pipe), 0); |
3096 | I915_WRITE(PF_WIN_POS(crtc->pipe), 0); | |
3097 | I915_WRITE(PF_WIN_SZ(crtc->pipe), 0); | |
3098 | } | |
6e3c9717 ACO |
3099 | crtc->config->pipe_src_w = adjusted_mode->crtc_hdisplay; |
3100 | crtc->config->pipe_src_h = adjusted_mode->crtc_vdisplay; | |
e30e8f75 GP |
3101 | } |
3102 | ||
5e84e1a4 ZW |
3103 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
3104 | { | |
3105 | struct drm_device *dev = crtc->dev; | |
3106 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3107 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3108 | int pipe = intel_crtc->pipe; | |
3109 | u32 reg, temp; | |
3110 | ||
3111 | /* enable normal train */ | |
3112 | reg = FDI_TX_CTL(pipe); | |
3113 | temp = I915_READ(reg); | |
61e499bf | 3114 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
3115 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
3116 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
3117 | } else { |
3118 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3119 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 3120 | } |
5e84e1a4 ZW |
3121 | I915_WRITE(reg, temp); |
3122 | ||
3123 | reg = FDI_RX_CTL(pipe); | |
3124 | temp = I915_READ(reg); | |
3125 | if (HAS_PCH_CPT(dev)) { | |
3126 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3127 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
3128 | } else { | |
3129 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3130 | temp |= FDI_LINK_TRAIN_NONE; | |
3131 | } | |
3132 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
3133 | ||
3134 | /* wait one idle pattern time */ | |
3135 | POSTING_READ(reg); | |
3136 | udelay(1000); | |
357555c0 JB |
3137 | |
3138 | /* IVB wants error correction enabled */ | |
3139 | if (IS_IVYBRIDGE(dev)) | |
3140 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
3141 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
3142 | } |
3143 | ||
8db9d77b ZW |
3144 | /* The FDI link training functions for ILK/Ibexpeak. */ |
3145 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
3146 | { | |
3147 | struct drm_device *dev = crtc->dev; | |
3148 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3149 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3150 | int pipe = intel_crtc->pipe; | |
5eddb70b | 3151 | u32 reg, temp, tries; |
8db9d77b | 3152 | |
1c8562f6 | 3153 | /* FDI needs bits from pipe first */ |
0fc932b8 | 3154 | assert_pipe_enabled(dev_priv, pipe); |
0fc932b8 | 3155 | |
e1a44743 AJ |
3156 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
3157 | for train result */ | |
5eddb70b CW |
3158 | reg = FDI_RX_IMR(pipe); |
3159 | temp = I915_READ(reg); | |
e1a44743 AJ |
3160 | temp &= ~FDI_RX_SYMBOL_LOCK; |
3161 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
3162 | I915_WRITE(reg, temp); |
3163 | I915_READ(reg); | |
e1a44743 AJ |
3164 | udelay(150); |
3165 | ||
8db9d77b | 3166 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
3167 | reg = FDI_TX_CTL(pipe); |
3168 | temp = I915_READ(reg); | |
627eb5a3 | 3169 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3170 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
8db9d77b ZW |
3171 | temp &= ~FDI_LINK_TRAIN_NONE; |
3172 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 3173 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 3174 | |
5eddb70b CW |
3175 | reg = FDI_RX_CTL(pipe); |
3176 | temp = I915_READ(reg); | |
8db9d77b ZW |
3177 | temp &= ~FDI_LINK_TRAIN_NONE; |
3178 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
3179 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
3180 | ||
3181 | POSTING_READ(reg); | |
8db9d77b ZW |
3182 | udelay(150); |
3183 | ||
5b2adf89 | 3184 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
8f5718a6 DV |
3185 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
3186 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
3187 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
5b2adf89 | 3188 | |
5eddb70b | 3189 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 3190 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 3191 | temp = I915_READ(reg); |
8db9d77b ZW |
3192 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
3193 | ||
3194 | if ((temp & FDI_RX_BIT_LOCK)) { | |
3195 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 3196 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
3197 | break; |
3198 | } | |
8db9d77b | 3199 | } |
e1a44743 | 3200 | if (tries == 5) |
5eddb70b | 3201 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
3202 | |
3203 | /* Train 2 */ | |
5eddb70b CW |
3204 | reg = FDI_TX_CTL(pipe); |
3205 | temp = I915_READ(reg); | |
8db9d77b ZW |
3206 | temp &= ~FDI_LINK_TRAIN_NONE; |
3207 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 3208 | I915_WRITE(reg, temp); |
8db9d77b | 3209 | |
5eddb70b CW |
3210 | reg = FDI_RX_CTL(pipe); |
3211 | temp = I915_READ(reg); | |
8db9d77b ZW |
3212 | temp &= ~FDI_LINK_TRAIN_NONE; |
3213 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 3214 | I915_WRITE(reg, temp); |
8db9d77b | 3215 | |
5eddb70b CW |
3216 | POSTING_READ(reg); |
3217 | udelay(150); | |
8db9d77b | 3218 | |
5eddb70b | 3219 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 3220 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 3221 | temp = I915_READ(reg); |
8db9d77b ZW |
3222 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
3223 | ||
3224 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 3225 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
3226 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
3227 | break; | |
3228 | } | |
8db9d77b | 3229 | } |
e1a44743 | 3230 | if (tries == 5) |
5eddb70b | 3231 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
3232 | |
3233 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 3234 | |
8db9d77b ZW |
3235 | } |
3236 | ||
0206e353 | 3237 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
3238 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
3239 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
3240 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
3241 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
3242 | }; | |
3243 | ||
3244 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
3245 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
3246 | { | |
3247 | struct drm_device *dev = crtc->dev; | |
3248 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3249 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3250 | int pipe = intel_crtc->pipe; | |
fa37d39e | 3251 | u32 reg, temp, i, retry; |
8db9d77b | 3252 | |
e1a44743 AJ |
3253 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
3254 | for train result */ | |
5eddb70b CW |
3255 | reg = FDI_RX_IMR(pipe); |
3256 | temp = I915_READ(reg); | |
e1a44743 AJ |
3257 | temp &= ~FDI_RX_SYMBOL_LOCK; |
3258 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
3259 | I915_WRITE(reg, temp); |
3260 | ||
3261 | POSTING_READ(reg); | |
e1a44743 AJ |
3262 | udelay(150); |
3263 | ||
8db9d77b | 3264 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
3265 | reg = FDI_TX_CTL(pipe); |
3266 | temp = I915_READ(reg); | |
627eb5a3 | 3267 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3268 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
8db9d77b ZW |
3269 | temp &= ~FDI_LINK_TRAIN_NONE; |
3270 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3271 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
3272 | /* SNB-B */ | |
3273 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 3274 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 3275 | |
d74cf324 DV |
3276 | I915_WRITE(FDI_RX_MISC(pipe), |
3277 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
3278 | ||
5eddb70b CW |
3279 | reg = FDI_RX_CTL(pipe); |
3280 | temp = I915_READ(reg); | |
8db9d77b ZW |
3281 | if (HAS_PCH_CPT(dev)) { |
3282 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3283 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
3284 | } else { | |
3285 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3286 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3287 | } | |
5eddb70b CW |
3288 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
3289 | ||
3290 | POSTING_READ(reg); | |
8db9d77b ZW |
3291 | udelay(150); |
3292 | ||
0206e353 | 3293 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
3294 | reg = FDI_TX_CTL(pipe); |
3295 | temp = I915_READ(reg); | |
8db9d77b ZW |
3296 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
3297 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
3298 | I915_WRITE(reg, temp); |
3299 | ||
3300 | POSTING_READ(reg); | |
8db9d77b ZW |
3301 | udelay(500); |
3302 | ||
fa37d39e SP |
3303 | for (retry = 0; retry < 5; retry++) { |
3304 | reg = FDI_RX_IIR(pipe); | |
3305 | temp = I915_READ(reg); | |
3306 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
3307 | if (temp & FDI_RX_BIT_LOCK) { | |
3308 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
3309 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
3310 | break; | |
3311 | } | |
3312 | udelay(50); | |
8db9d77b | 3313 | } |
fa37d39e SP |
3314 | if (retry < 5) |
3315 | break; | |
8db9d77b ZW |
3316 | } |
3317 | if (i == 4) | |
5eddb70b | 3318 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
3319 | |
3320 | /* Train 2 */ | |
5eddb70b CW |
3321 | reg = FDI_TX_CTL(pipe); |
3322 | temp = I915_READ(reg); | |
8db9d77b ZW |
3323 | temp &= ~FDI_LINK_TRAIN_NONE; |
3324 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
3325 | if (IS_GEN6(dev)) { | |
3326 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
3327 | /* SNB-B */ | |
3328 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
3329 | } | |
5eddb70b | 3330 | I915_WRITE(reg, temp); |
8db9d77b | 3331 | |
5eddb70b CW |
3332 | reg = FDI_RX_CTL(pipe); |
3333 | temp = I915_READ(reg); | |
8db9d77b ZW |
3334 | if (HAS_PCH_CPT(dev)) { |
3335 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3336 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
3337 | } else { | |
3338 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3339 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
3340 | } | |
5eddb70b CW |
3341 | I915_WRITE(reg, temp); |
3342 | ||
3343 | POSTING_READ(reg); | |
8db9d77b ZW |
3344 | udelay(150); |
3345 | ||
0206e353 | 3346 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
3347 | reg = FDI_TX_CTL(pipe); |
3348 | temp = I915_READ(reg); | |
8db9d77b ZW |
3349 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
3350 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
3351 | I915_WRITE(reg, temp); |
3352 | ||
3353 | POSTING_READ(reg); | |
8db9d77b ZW |
3354 | udelay(500); |
3355 | ||
fa37d39e SP |
3356 | for (retry = 0; retry < 5; retry++) { |
3357 | reg = FDI_RX_IIR(pipe); | |
3358 | temp = I915_READ(reg); | |
3359 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
3360 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
3361 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
3362 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
3363 | break; | |
3364 | } | |
3365 | udelay(50); | |
8db9d77b | 3366 | } |
fa37d39e SP |
3367 | if (retry < 5) |
3368 | break; | |
8db9d77b ZW |
3369 | } |
3370 | if (i == 4) | |
5eddb70b | 3371 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
3372 | |
3373 | DRM_DEBUG_KMS("FDI train done.\n"); | |
3374 | } | |
3375 | ||
357555c0 JB |
3376 | /* Manual link training for Ivy Bridge A0 parts */ |
3377 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
3378 | { | |
3379 | struct drm_device *dev = crtc->dev; | |
3380 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3381 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3382 | int pipe = intel_crtc->pipe; | |
139ccd3f | 3383 | u32 reg, temp, i, j; |
357555c0 JB |
3384 | |
3385 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
3386 | for train result */ | |
3387 | reg = FDI_RX_IMR(pipe); | |
3388 | temp = I915_READ(reg); | |
3389 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
3390 | temp &= ~FDI_RX_BIT_LOCK; | |
3391 | I915_WRITE(reg, temp); | |
3392 | ||
3393 | POSTING_READ(reg); | |
3394 | udelay(150); | |
3395 | ||
01a415fd DV |
3396 | DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n", |
3397 | I915_READ(FDI_RX_IIR(pipe))); | |
3398 | ||
139ccd3f JB |
3399 | /* Try each vswing and preemphasis setting twice before moving on */ |
3400 | for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) { | |
3401 | /* disable first in case we need to retry */ | |
3402 | reg = FDI_TX_CTL(pipe); | |
3403 | temp = I915_READ(reg); | |
3404 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
3405 | temp &= ~FDI_TX_ENABLE; | |
3406 | I915_WRITE(reg, temp); | |
357555c0 | 3407 | |
139ccd3f JB |
3408 | reg = FDI_RX_CTL(pipe); |
3409 | temp = I915_READ(reg); | |
3410 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
3411 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3412 | temp &= ~FDI_RX_ENABLE; | |
3413 | I915_WRITE(reg, temp); | |
357555c0 | 3414 | |
139ccd3f | 3415 | /* enable CPU FDI TX and PCH FDI RX */ |
357555c0 JB |
3416 | reg = FDI_TX_CTL(pipe); |
3417 | temp = I915_READ(reg); | |
139ccd3f | 3418 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3419 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
139ccd3f | 3420 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; |
357555c0 | 3421 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
139ccd3f JB |
3422 | temp |= snb_b_fdi_train_param[j/2]; |
3423 | temp |= FDI_COMPOSITE_SYNC; | |
3424 | I915_WRITE(reg, temp | FDI_TX_ENABLE); | |
357555c0 | 3425 | |
139ccd3f JB |
3426 | I915_WRITE(FDI_RX_MISC(pipe), |
3427 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
357555c0 | 3428 | |
139ccd3f | 3429 | reg = FDI_RX_CTL(pipe); |
357555c0 | 3430 | temp = I915_READ(reg); |
139ccd3f JB |
3431 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
3432 | temp |= FDI_COMPOSITE_SYNC; | |
3433 | I915_WRITE(reg, temp | FDI_RX_ENABLE); | |
357555c0 | 3434 | |
139ccd3f JB |
3435 | POSTING_READ(reg); |
3436 | udelay(1); /* should be 0.5us */ | |
357555c0 | 3437 | |
139ccd3f JB |
3438 | for (i = 0; i < 4; i++) { |
3439 | reg = FDI_RX_IIR(pipe); | |
3440 | temp = I915_READ(reg); | |
3441 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
357555c0 | 3442 | |
139ccd3f JB |
3443 | if (temp & FDI_RX_BIT_LOCK || |
3444 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
3445 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
3446 | DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", | |
3447 | i); | |
3448 | break; | |
3449 | } | |
3450 | udelay(1); /* should be 0.5us */ | |
3451 | } | |
3452 | if (i == 4) { | |
3453 | DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2); | |
3454 | continue; | |
3455 | } | |
357555c0 | 3456 | |
139ccd3f | 3457 | /* Train 2 */ |
357555c0 JB |
3458 | reg = FDI_TX_CTL(pipe); |
3459 | temp = I915_READ(reg); | |
139ccd3f JB |
3460 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
3461 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
3462 | I915_WRITE(reg, temp); | |
3463 | ||
3464 | reg = FDI_RX_CTL(pipe); | |
3465 | temp = I915_READ(reg); | |
3466 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3467 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
357555c0 JB |
3468 | I915_WRITE(reg, temp); |
3469 | ||
3470 | POSTING_READ(reg); | |
139ccd3f | 3471 | udelay(2); /* should be 1.5us */ |
357555c0 | 3472 | |
139ccd3f JB |
3473 | for (i = 0; i < 4; i++) { |
3474 | reg = FDI_RX_IIR(pipe); | |
3475 | temp = I915_READ(reg); | |
3476 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
357555c0 | 3477 | |
139ccd3f JB |
3478 | if (temp & FDI_RX_SYMBOL_LOCK || |
3479 | (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) { | |
3480 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
3481 | DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", | |
3482 | i); | |
3483 | goto train_done; | |
3484 | } | |
3485 | udelay(2); /* should be 1.5us */ | |
357555c0 | 3486 | } |
139ccd3f JB |
3487 | if (i == 4) |
3488 | DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2); | |
357555c0 | 3489 | } |
357555c0 | 3490 | |
139ccd3f | 3491 | train_done: |
357555c0 JB |
3492 | DRM_DEBUG_KMS("FDI train done.\n"); |
3493 | } | |
3494 | ||
88cefb6c | 3495 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 3496 | { |
88cefb6c | 3497 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 3498 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 3499 | int pipe = intel_crtc->pipe; |
5eddb70b | 3500 | u32 reg, temp; |
79e53945 | 3501 | |
c64e311e | 3502 | |
c98e9dcf | 3503 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
3504 | reg = FDI_RX_CTL(pipe); |
3505 | temp = I915_READ(reg); | |
627eb5a3 | 3506 | temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16)); |
6e3c9717 | 3507 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
dfd07d72 | 3508 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
5eddb70b CW |
3509 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); |
3510 | ||
3511 | POSTING_READ(reg); | |
c98e9dcf JB |
3512 | udelay(200); |
3513 | ||
3514 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
3515 | temp = I915_READ(reg); |
3516 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
3517 | ||
3518 | POSTING_READ(reg); | |
c98e9dcf JB |
3519 | udelay(200); |
3520 | ||
20749730 PZ |
3521 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
3522 | reg = FDI_TX_CTL(pipe); | |
3523 | temp = I915_READ(reg); | |
3524 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
3525 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 3526 | |
20749730 PZ |
3527 | POSTING_READ(reg); |
3528 | udelay(100); | |
6be4a607 | 3529 | } |
0e23b99d JB |
3530 | } |
3531 | ||
88cefb6c DV |
3532 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
3533 | { | |
3534 | struct drm_device *dev = intel_crtc->base.dev; | |
3535 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3536 | int pipe = intel_crtc->pipe; | |
3537 | u32 reg, temp; | |
3538 | ||
3539 | /* Switch from PCDclk to Rawclk */ | |
3540 | reg = FDI_RX_CTL(pipe); | |
3541 | temp = I915_READ(reg); | |
3542 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
3543 | ||
3544 | /* Disable CPU FDI TX PLL */ | |
3545 | reg = FDI_TX_CTL(pipe); | |
3546 | temp = I915_READ(reg); | |
3547 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
3548 | ||
3549 | POSTING_READ(reg); | |
3550 | udelay(100); | |
3551 | ||
3552 | reg = FDI_RX_CTL(pipe); | |
3553 | temp = I915_READ(reg); | |
3554 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
3555 | ||
3556 | /* Wait for the clocks to turn off. */ | |
3557 | POSTING_READ(reg); | |
3558 | udelay(100); | |
3559 | } | |
3560 | ||
0fc932b8 JB |
3561 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
3562 | { | |
3563 | struct drm_device *dev = crtc->dev; | |
3564 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3565 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3566 | int pipe = intel_crtc->pipe; | |
3567 | u32 reg, temp; | |
3568 | ||
3569 | /* disable CPU FDI tx and PCH FDI rx */ | |
3570 | reg = FDI_TX_CTL(pipe); | |
3571 | temp = I915_READ(reg); | |
3572 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
3573 | POSTING_READ(reg); | |
3574 | ||
3575 | reg = FDI_RX_CTL(pipe); | |
3576 | temp = I915_READ(reg); | |
3577 | temp &= ~(0x7 << 16); | |
dfd07d72 | 3578 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
3579 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); |
3580 | ||
3581 | POSTING_READ(reg); | |
3582 | udelay(100); | |
3583 | ||
3584 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
eba905b2 | 3585 | if (HAS_PCH_IBX(dev)) |
6f06ce18 | 3586 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
0fc932b8 JB |
3587 | |
3588 | /* still set train pattern 1 */ | |
3589 | reg = FDI_TX_CTL(pipe); | |
3590 | temp = I915_READ(reg); | |
3591 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3592 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3593 | I915_WRITE(reg, temp); | |
3594 | ||
3595 | reg = FDI_RX_CTL(pipe); | |
3596 | temp = I915_READ(reg); | |
3597 | if (HAS_PCH_CPT(dev)) { | |
3598 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3599 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
3600 | } else { | |
3601 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3602 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3603 | } | |
3604 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
3605 | temp &= ~(0x07 << 16); | |
dfd07d72 | 3606 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
3607 | I915_WRITE(reg, temp); |
3608 | ||
3609 | POSTING_READ(reg); | |
3610 | udelay(100); | |
3611 | } | |
3612 | ||
5dce5b93 CW |
3613 | bool intel_has_pending_fb_unpin(struct drm_device *dev) |
3614 | { | |
3615 | struct intel_crtc *crtc; | |
3616 | ||
3617 | /* Note that we don't need to be called with mode_config.lock here | |
3618 | * as our list of CRTC objects is static for the lifetime of the | |
3619 | * device and so cannot disappear as we iterate. Similarly, we can | |
3620 | * happily treat the predicates as racy, atomic checks as userspace | |
3621 | * cannot claim and pin a new fb without at least acquring the | |
3622 | * struct_mutex and so serialising with us. | |
3623 | */ | |
d3fcc808 | 3624 | for_each_intel_crtc(dev, crtc) { |
5dce5b93 CW |
3625 | if (atomic_read(&crtc->unpin_work_count) == 0) |
3626 | continue; | |
3627 | ||
3628 | if (crtc->unpin_work) | |
3629 | intel_wait_for_vblank(dev, crtc->pipe); | |
3630 | ||
3631 | return true; | |
3632 | } | |
3633 | ||
3634 | return false; | |
3635 | } | |
3636 | ||
d6bbafa1 CW |
3637 | static void page_flip_completed(struct intel_crtc *intel_crtc) |
3638 | { | |
3639 | struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev); | |
3640 | struct intel_unpin_work *work = intel_crtc->unpin_work; | |
3641 | ||
3642 | /* ensure that the unpin work is consistent wrt ->pending. */ | |
3643 | smp_rmb(); | |
3644 | intel_crtc->unpin_work = NULL; | |
3645 | ||
3646 | if (work->event) | |
3647 | drm_send_vblank_event(intel_crtc->base.dev, | |
3648 | intel_crtc->pipe, | |
3649 | work->event); | |
3650 | ||
3651 | drm_crtc_vblank_put(&intel_crtc->base); | |
3652 | ||
3653 | wake_up_all(&dev_priv->pending_flip_queue); | |
3654 | queue_work(dev_priv->wq, &work->work); | |
3655 | ||
3656 | trace_i915_flip_complete(intel_crtc->plane, | |
3657 | work->pending_flip_obj); | |
3658 | } | |
3659 | ||
46a55d30 | 3660 | void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
e6c3a2a6 | 3661 | { |
0f91128d | 3662 | struct drm_device *dev = crtc->dev; |
5bb61643 | 3663 | struct drm_i915_private *dev_priv = dev->dev_private; |
e6c3a2a6 | 3664 | |
2c10d571 | 3665 | WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue)); |
9c787942 CW |
3666 | if (WARN_ON(wait_event_timeout(dev_priv->pending_flip_queue, |
3667 | !intel_crtc_has_pending_flip(crtc), | |
3668 | 60*HZ) == 0)) { | |
3669 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2c10d571 | 3670 | |
5e2d7afc | 3671 | spin_lock_irq(&dev->event_lock); |
9c787942 CW |
3672 | if (intel_crtc->unpin_work) { |
3673 | WARN_ONCE(1, "Removing stuck page flip\n"); | |
3674 | page_flip_completed(intel_crtc); | |
3675 | } | |
5e2d7afc | 3676 | spin_unlock_irq(&dev->event_lock); |
9c787942 | 3677 | } |
5bb61643 | 3678 | |
975d568a CW |
3679 | if (crtc->primary->fb) { |
3680 | mutex_lock(&dev->struct_mutex); | |
3681 | intel_finish_fb(crtc->primary->fb); | |
3682 | mutex_unlock(&dev->struct_mutex); | |
3683 | } | |
e6c3a2a6 CW |
3684 | } |
3685 | ||
e615efe4 ED |
3686 | /* Program iCLKIP clock to the desired frequency */ |
3687 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
3688 | { | |
3689 | struct drm_device *dev = crtc->dev; | |
3690 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 3691 | int clock = to_intel_crtc(crtc)->config->base.adjusted_mode.crtc_clock; |
e615efe4 ED |
3692 | u32 divsel, phaseinc, auxdiv, phasedir = 0; |
3693 | u32 temp; | |
3694 | ||
09153000 DV |
3695 | mutex_lock(&dev_priv->dpio_lock); |
3696 | ||
e615efe4 ED |
3697 | /* It is necessary to ungate the pixclk gate prior to programming |
3698 | * the divisors, and gate it back when it is done. | |
3699 | */ | |
3700 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
3701 | ||
3702 | /* Disable SSCCTL */ | |
3703 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
988d6ee8 PZ |
3704 | intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) | |
3705 | SBI_SSCCTL_DISABLE, | |
3706 | SBI_ICLK); | |
e615efe4 ED |
3707 | |
3708 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
12d7ceed | 3709 | if (clock == 20000) { |
e615efe4 ED |
3710 | auxdiv = 1; |
3711 | divsel = 0x41; | |
3712 | phaseinc = 0x20; | |
3713 | } else { | |
3714 | /* The iCLK virtual clock root frequency is in MHz, | |
241bfc38 DL |
3715 | * but the adjusted_mode->crtc_clock in in KHz. To get the |
3716 | * divisors, it is necessary to divide one by another, so we | |
e615efe4 ED |
3717 | * convert the virtual clock precision to KHz here for higher |
3718 | * precision. | |
3719 | */ | |
3720 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
3721 | u32 iclk_pi_range = 64; | |
3722 | u32 desired_divisor, msb_divisor_value, pi_value; | |
3723 | ||
12d7ceed | 3724 | desired_divisor = (iclk_virtual_root_freq / clock); |
e615efe4 ED |
3725 | msb_divisor_value = desired_divisor / iclk_pi_range; |
3726 | pi_value = desired_divisor % iclk_pi_range; | |
3727 | ||
3728 | auxdiv = 0; | |
3729 | divsel = msb_divisor_value - 2; | |
3730 | phaseinc = pi_value; | |
3731 | } | |
3732 | ||
3733 | /* This should not happen with any sane values */ | |
3734 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
3735 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
3736 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
3737 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
3738 | ||
3739 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
12d7ceed | 3740 | clock, |
e615efe4 ED |
3741 | auxdiv, |
3742 | divsel, | |
3743 | phasedir, | |
3744 | phaseinc); | |
3745 | ||
3746 | /* Program SSCDIVINTPHASE6 */ | |
988d6ee8 | 3747 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK); |
e615efe4 ED |
3748 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; |
3749 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
3750 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
3751 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
3752 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
3753 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
988d6ee8 | 3754 | intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK); |
e615efe4 ED |
3755 | |
3756 | /* Program SSCAUXDIV */ | |
988d6ee8 | 3757 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK); |
e615efe4 ED |
3758 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); |
3759 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
988d6ee8 | 3760 | intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK); |
e615efe4 ED |
3761 | |
3762 | /* Enable modulator and associated divider */ | |
988d6ee8 | 3763 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK); |
e615efe4 | 3764 | temp &= ~SBI_SSCCTL_DISABLE; |
988d6ee8 | 3765 | intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK); |
e615efe4 ED |
3766 | |
3767 | /* Wait for initialization time */ | |
3768 | udelay(24); | |
3769 | ||
3770 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
09153000 DV |
3771 | |
3772 | mutex_unlock(&dev_priv->dpio_lock); | |
e615efe4 ED |
3773 | } |
3774 | ||
275f01b2 DV |
3775 | static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc, |
3776 | enum pipe pch_transcoder) | |
3777 | { | |
3778 | struct drm_device *dev = crtc->base.dev; | |
3779 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 3780 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
275f01b2 DV |
3781 | |
3782 | I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder), | |
3783 | I915_READ(HTOTAL(cpu_transcoder))); | |
3784 | I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder), | |
3785 | I915_READ(HBLANK(cpu_transcoder))); | |
3786 | I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder), | |
3787 | I915_READ(HSYNC(cpu_transcoder))); | |
3788 | ||
3789 | I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder), | |
3790 | I915_READ(VTOTAL(cpu_transcoder))); | |
3791 | I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder), | |
3792 | I915_READ(VBLANK(cpu_transcoder))); | |
3793 | I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder), | |
3794 | I915_READ(VSYNC(cpu_transcoder))); | |
3795 | I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder), | |
3796 | I915_READ(VSYNCSHIFT(cpu_transcoder))); | |
3797 | } | |
3798 | ||
003632d9 | 3799 | static void cpt_set_fdi_bc_bifurcation(struct drm_device *dev, bool enable) |
1fbc0d78 DV |
3800 | { |
3801 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3802 | uint32_t temp; | |
3803 | ||
3804 | temp = I915_READ(SOUTH_CHICKEN1); | |
003632d9 | 3805 | if (!!(temp & FDI_BC_BIFURCATION_SELECT) == enable) |
1fbc0d78 DV |
3806 | return; |
3807 | ||
3808 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); | |
3809 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
3810 | ||
003632d9 ACO |
3811 | temp &= ~FDI_BC_BIFURCATION_SELECT; |
3812 | if (enable) | |
3813 | temp |= FDI_BC_BIFURCATION_SELECT; | |
3814 | ||
3815 | DRM_DEBUG_KMS("%sabling fdi C rx\n", enable ? "en" : "dis"); | |
1fbc0d78 DV |
3816 | I915_WRITE(SOUTH_CHICKEN1, temp); |
3817 | POSTING_READ(SOUTH_CHICKEN1); | |
3818 | } | |
3819 | ||
3820 | static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc) | |
3821 | { | |
3822 | struct drm_device *dev = intel_crtc->base.dev; | |
1fbc0d78 DV |
3823 | |
3824 | switch (intel_crtc->pipe) { | |
3825 | case PIPE_A: | |
3826 | break; | |
3827 | case PIPE_B: | |
6e3c9717 | 3828 | if (intel_crtc->config->fdi_lanes > 2) |
003632d9 | 3829 | cpt_set_fdi_bc_bifurcation(dev, false); |
1fbc0d78 | 3830 | else |
003632d9 | 3831 | cpt_set_fdi_bc_bifurcation(dev, true); |
1fbc0d78 DV |
3832 | |
3833 | break; | |
3834 | case PIPE_C: | |
003632d9 | 3835 | cpt_set_fdi_bc_bifurcation(dev, true); |
1fbc0d78 DV |
3836 | |
3837 | break; | |
3838 | default: | |
3839 | BUG(); | |
3840 | } | |
3841 | } | |
3842 | ||
f67a559d JB |
3843 | /* |
3844 | * Enable PCH resources required for PCH ports: | |
3845 | * - PCH PLLs | |
3846 | * - FDI training & RX/TX | |
3847 | * - update transcoder timings | |
3848 | * - DP transcoding bits | |
3849 | * - transcoder | |
3850 | */ | |
3851 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
3852 | { |
3853 | struct drm_device *dev = crtc->dev; | |
3854 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3855 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3856 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 3857 | u32 reg, temp; |
2c07245f | 3858 | |
ab9412ba | 3859 | assert_pch_transcoder_disabled(dev_priv, pipe); |
e7e164db | 3860 | |
1fbc0d78 DV |
3861 | if (IS_IVYBRIDGE(dev)) |
3862 | ivybridge_update_fdi_bc_bifurcation(intel_crtc); | |
3863 | ||
cd986abb DV |
3864 | /* Write the TU size bits before fdi link training, so that error |
3865 | * detection works. */ | |
3866 | I915_WRITE(FDI_RX_TUSIZE1(pipe), | |
3867 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
3868 | ||
c98e9dcf | 3869 | /* For PCH output, training FDI link */ |
674cf967 | 3870 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 3871 | |
3ad8a208 DV |
3872 | /* We need to program the right clock selection before writing the pixel |
3873 | * mutliplier into the DPLL. */ | |
303b81e0 | 3874 | if (HAS_PCH_CPT(dev)) { |
ee7b9f93 | 3875 | u32 sel; |
4b645f14 | 3876 | |
c98e9dcf | 3877 | temp = I915_READ(PCH_DPLL_SEL); |
11887397 DV |
3878 | temp |= TRANS_DPLL_ENABLE(pipe); |
3879 | sel = TRANS_DPLLB_SEL(pipe); | |
6e3c9717 | 3880 | if (intel_crtc->config->shared_dpll == DPLL_ID_PCH_PLL_B) |
ee7b9f93 JB |
3881 | temp |= sel; |
3882 | else | |
3883 | temp &= ~sel; | |
c98e9dcf | 3884 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 3885 | } |
5eddb70b | 3886 | |
3ad8a208 DV |
3887 | /* XXX: pch pll's can be enabled any time before we enable the PCH |
3888 | * transcoder, and we actually should do this to not upset any PCH | |
3889 | * transcoder that already use the clock when we share it. | |
3890 | * | |
3891 | * Note that enable_shared_dpll tries to do the right thing, but | |
3892 | * get_shared_dpll unconditionally resets the pll - we need that to have | |
3893 | * the right LVDS enable sequence. */ | |
85b3894f | 3894 | intel_enable_shared_dpll(intel_crtc); |
3ad8a208 | 3895 | |
d9b6cb56 JB |
3896 | /* set transcoder timing, panel must allow it */ |
3897 | assert_panel_unlocked(dev_priv, pipe); | |
275f01b2 | 3898 | ironlake_pch_transcoder_set_timings(intel_crtc, pipe); |
8db9d77b | 3899 | |
303b81e0 | 3900 | intel_fdi_normal_train(crtc); |
5e84e1a4 | 3901 | |
c98e9dcf | 3902 | /* For PCH DP, enable TRANS_DP_CTL */ |
6e3c9717 | 3903 | if (HAS_PCH_CPT(dev) && intel_crtc->config->has_dp_encoder) { |
dfd07d72 | 3904 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5; |
5eddb70b CW |
3905 | reg = TRANS_DP_CTL(pipe); |
3906 | temp = I915_READ(reg); | |
3907 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
3908 | TRANS_DP_SYNC_MASK | |
3909 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
3910 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
3911 | TRANS_DP_ENH_FRAMING); | |
9325c9f0 | 3912 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
3913 | |
3914 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 3915 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 3916 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 3917 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
3918 | |
3919 | switch (intel_trans_dp_port_sel(crtc)) { | |
3920 | case PCH_DP_B: | |
5eddb70b | 3921 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
3922 | break; |
3923 | case PCH_DP_C: | |
5eddb70b | 3924 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
3925 | break; |
3926 | case PCH_DP_D: | |
5eddb70b | 3927 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
3928 | break; |
3929 | default: | |
e95d41e1 | 3930 | BUG(); |
32f9d658 | 3931 | } |
2c07245f | 3932 | |
5eddb70b | 3933 | I915_WRITE(reg, temp); |
6be4a607 | 3934 | } |
b52eb4dc | 3935 | |
b8a4f404 | 3936 | ironlake_enable_pch_transcoder(dev_priv, pipe); |
f67a559d JB |
3937 | } |
3938 | ||
1507e5bd PZ |
3939 | static void lpt_pch_enable(struct drm_crtc *crtc) |
3940 | { | |
3941 | struct drm_device *dev = crtc->dev; | |
3942 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3943 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6e3c9717 | 3944 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
1507e5bd | 3945 | |
ab9412ba | 3946 | assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A); |
1507e5bd | 3947 | |
8c52b5e8 | 3948 | lpt_program_iclkip(crtc); |
1507e5bd | 3949 | |
0540e488 | 3950 | /* Set transcoder timing. */ |
275f01b2 | 3951 | ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A); |
1507e5bd | 3952 | |
937bb610 | 3953 | lpt_enable_pch_transcoder(dev_priv, cpu_transcoder); |
f67a559d JB |
3954 | } |
3955 | ||
716c2e55 | 3956 | void intel_put_shared_dpll(struct intel_crtc *crtc) |
ee7b9f93 | 3957 | { |
e2b78267 | 3958 | struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc); |
ee7b9f93 JB |
3959 | |
3960 | if (pll == NULL) | |
3961 | return; | |
3962 | ||
3e369b76 | 3963 | if (!(pll->config.crtc_mask & (1 << crtc->pipe))) { |
1e6f2ddc | 3964 | WARN(1, "bad %s crtc mask\n", pll->name); |
ee7b9f93 JB |
3965 | return; |
3966 | } | |
3967 | ||
3e369b76 ACO |
3968 | pll->config.crtc_mask &= ~(1 << crtc->pipe); |
3969 | if (pll->config.crtc_mask == 0) { | |
f4a091c7 DV |
3970 | WARN_ON(pll->on); |
3971 | WARN_ON(pll->active); | |
3972 | } | |
3973 | ||
6e3c9717 | 3974 | crtc->config->shared_dpll = DPLL_ID_PRIVATE; |
ee7b9f93 JB |
3975 | } |
3976 | ||
190f68c5 ACO |
3977 | struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc, |
3978 | struct intel_crtc_state *crtc_state) | |
ee7b9f93 | 3979 | { |
e2b78267 | 3980 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; |
8bd31e67 | 3981 | struct intel_shared_dpll *pll; |
e2b78267 | 3982 | enum intel_dpll_id i; |
ee7b9f93 | 3983 | |
98b6bd99 DV |
3984 | if (HAS_PCH_IBX(dev_priv->dev)) { |
3985 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
d94ab068 | 3986 | i = (enum intel_dpll_id) crtc->pipe; |
e72f9fbf | 3987 | pll = &dev_priv->shared_dplls[i]; |
98b6bd99 | 3988 | |
46edb027 DV |
3989 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n", |
3990 | crtc->base.base.id, pll->name); | |
98b6bd99 | 3991 | |
8bd31e67 | 3992 | WARN_ON(pll->new_config->crtc_mask); |
f2a69f44 | 3993 | |
98b6bd99 DV |
3994 | goto found; |
3995 | } | |
3996 | ||
e72f9fbf DV |
3997 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
3998 | pll = &dev_priv->shared_dplls[i]; | |
ee7b9f93 JB |
3999 | |
4000 | /* Only want to check enabled timings first */ | |
8bd31e67 | 4001 | if (pll->new_config->crtc_mask == 0) |
ee7b9f93 JB |
4002 | continue; |
4003 | ||
190f68c5 | 4004 | if (memcmp(&crtc_state->dpll_hw_state, |
8bd31e67 ACO |
4005 | &pll->new_config->hw_state, |
4006 | sizeof(pll->new_config->hw_state)) == 0) { | |
4007 | DRM_DEBUG_KMS("CRTC:%d sharing existing %s (crtc mask 0x%08x, ative %d)\n", | |
1e6f2ddc | 4008 | crtc->base.base.id, pll->name, |
8bd31e67 ACO |
4009 | pll->new_config->crtc_mask, |
4010 | pll->active); | |
ee7b9f93 JB |
4011 | goto found; |
4012 | } | |
4013 | } | |
4014 | ||
4015 | /* Ok no matching timings, maybe there's a free one? */ | |
e72f9fbf DV |
4016 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
4017 | pll = &dev_priv->shared_dplls[i]; | |
8bd31e67 | 4018 | if (pll->new_config->crtc_mask == 0) { |
46edb027 DV |
4019 | DRM_DEBUG_KMS("CRTC:%d allocated %s\n", |
4020 | crtc->base.base.id, pll->name); | |
ee7b9f93 JB |
4021 | goto found; |
4022 | } | |
4023 | } | |
4024 | ||
4025 | return NULL; | |
4026 | ||
4027 | found: | |
8bd31e67 | 4028 | if (pll->new_config->crtc_mask == 0) |
190f68c5 | 4029 | pll->new_config->hw_state = crtc_state->dpll_hw_state; |
f2a69f44 | 4030 | |
190f68c5 | 4031 | crtc_state->shared_dpll = i; |
46edb027 DV |
4032 | DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name, |
4033 | pipe_name(crtc->pipe)); | |
ee7b9f93 | 4034 | |
8bd31e67 | 4035 | pll->new_config->crtc_mask |= 1 << crtc->pipe; |
e04c7350 | 4036 | |
ee7b9f93 JB |
4037 | return pll; |
4038 | } | |
4039 | ||
8bd31e67 ACO |
4040 | /** |
4041 | * intel_shared_dpll_start_config - start a new PLL staged config | |
4042 | * @dev_priv: DRM device | |
4043 | * @clear_pipes: mask of pipes that will have their PLLs freed | |
4044 | * | |
4045 | * Starts a new PLL staged config, copying the current config but | |
4046 | * releasing the references of pipes specified in clear_pipes. | |
4047 | */ | |
4048 | static int intel_shared_dpll_start_config(struct drm_i915_private *dev_priv, | |
4049 | unsigned clear_pipes) | |
4050 | { | |
4051 | struct intel_shared_dpll *pll; | |
4052 | enum intel_dpll_id i; | |
4053 | ||
4054 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { | |
4055 | pll = &dev_priv->shared_dplls[i]; | |
4056 | ||
4057 | pll->new_config = kmemdup(&pll->config, sizeof pll->config, | |
4058 | GFP_KERNEL); | |
4059 | if (!pll->new_config) | |
4060 | goto cleanup; | |
4061 | ||
4062 | pll->new_config->crtc_mask &= ~clear_pipes; | |
4063 | } | |
4064 | ||
4065 | return 0; | |
4066 | ||
4067 | cleanup: | |
4068 | while (--i >= 0) { | |
4069 | pll = &dev_priv->shared_dplls[i]; | |
f354d733 | 4070 | kfree(pll->new_config); |
8bd31e67 ACO |
4071 | pll->new_config = NULL; |
4072 | } | |
4073 | ||
4074 | return -ENOMEM; | |
4075 | } | |
4076 | ||
4077 | static void intel_shared_dpll_commit(struct drm_i915_private *dev_priv) | |
4078 | { | |
4079 | struct intel_shared_dpll *pll; | |
4080 | enum intel_dpll_id i; | |
4081 | ||
4082 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { | |
4083 | pll = &dev_priv->shared_dplls[i]; | |
4084 | ||
4085 | WARN_ON(pll->new_config == &pll->config); | |
4086 | ||
4087 | pll->config = *pll->new_config; | |
4088 | kfree(pll->new_config); | |
4089 | pll->new_config = NULL; | |
4090 | } | |
4091 | } | |
4092 | ||
4093 | static void intel_shared_dpll_abort_config(struct drm_i915_private *dev_priv) | |
4094 | { | |
4095 | struct intel_shared_dpll *pll; | |
4096 | enum intel_dpll_id i; | |
4097 | ||
4098 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { | |
4099 | pll = &dev_priv->shared_dplls[i]; | |
4100 | ||
4101 | WARN_ON(pll->new_config == &pll->config); | |
4102 | ||
4103 | kfree(pll->new_config); | |
4104 | pll->new_config = NULL; | |
4105 | } | |
4106 | } | |
4107 | ||
a1520318 | 4108 | static void cpt_verify_modeset(struct drm_device *dev, int pipe) |
d4270e57 JB |
4109 | { |
4110 | struct drm_i915_private *dev_priv = dev->dev_private; | |
23670b32 | 4111 | int dslreg = PIPEDSL(pipe); |
d4270e57 JB |
4112 | u32 temp; |
4113 | ||
4114 | temp = I915_READ(dslreg); | |
4115 | udelay(500); | |
4116 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
d4270e57 | 4117 | if (wait_for(I915_READ(dslreg) != temp, 5)) |
84f44ce7 | 4118 | DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe)); |
d4270e57 JB |
4119 | } |
4120 | } | |
4121 | ||
bd2e244f JB |
4122 | static void skylake_pfit_enable(struct intel_crtc *crtc) |
4123 | { | |
4124 | struct drm_device *dev = crtc->base.dev; | |
4125 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4126 | int pipe = crtc->pipe; | |
4127 | ||
6e3c9717 | 4128 | if (crtc->config->pch_pfit.enabled) { |
bd2e244f | 4129 | I915_WRITE(PS_CTL(pipe), PS_ENABLE); |
6e3c9717 ACO |
4130 | I915_WRITE(PS_WIN_POS(pipe), crtc->config->pch_pfit.pos); |
4131 | I915_WRITE(PS_WIN_SZ(pipe), crtc->config->pch_pfit.size); | |
bd2e244f JB |
4132 | } |
4133 | } | |
4134 | ||
b074cec8 JB |
4135 | static void ironlake_pfit_enable(struct intel_crtc *crtc) |
4136 | { | |
4137 | struct drm_device *dev = crtc->base.dev; | |
4138 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4139 | int pipe = crtc->pipe; | |
4140 | ||
6e3c9717 | 4141 | if (crtc->config->pch_pfit.enabled) { |
b074cec8 JB |
4142 | /* Force use of hard-coded filter coefficients |
4143 | * as some pre-programmed values are broken, | |
4144 | * e.g. x201. | |
4145 | */ | |
4146 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) | |
4147 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 | | |
4148 | PF_PIPE_SEL_IVB(pipe)); | |
4149 | else | |
4150 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); | |
6e3c9717 ACO |
4151 | I915_WRITE(PF_WIN_POS(pipe), crtc->config->pch_pfit.pos); |
4152 | I915_WRITE(PF_WIN_SZ(pipe), crtc->config->pch_pfit.size); | |
d4270e57 JB |
4153 | } |
4154 | } | |
4155 | ||
4a3b8769 | 4156 | static void intel_enable_sprite_planes(struct drm_crtc *crtc) |
bb53d4ae VS |
4157 | { |
4158 | struct drm_device *dev = crtc->dev; | |
4159 | enum pipe pipe = to_intel_crtc(crtc)->pipe; | |
af2b653b | 4160 | struct drm_plane *plane; |
bb53d4ae VS |
4161 | struct intel_plane *intel_plane; |
4162 | ||
af2b653b MR |
4163 | drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) { |
4164 | intel_plane = to_intel_plane(plane); | |
bb53d4ae VS |
4165 | if (intel_plane->pipe == pipe) |
4166 | intel_plane_restore(&intel_plane->base); | |
af2b653b | 4167 | } |
bb53d4ae VS |
4168 | } |
4169 | ||
0d703d4e MR |
4170 | /* |
4171 | * Disable a plane internally without actually modifying the plane's state. | |
4172 | * This will allow us to easily restore the plane later by just reprogramming | |
4173 | * its state. | |
4174 | */ | |
4175 | static void disable_plane_internal(struct drm_plane *plane) | |
4176 | { | |
4177 | struct intel_plane *intel_plane = to_intel_plane(plane); | |
4178 | struct drm_plane_state *state = | |
4179 | plane->funcs->atomic_duplicate_state(plane); | |
4180 | struct intel_plane_state *intel_state = to_intel_plane_state(state); | |
4181 | ||
4182 | intel_state->visible = false; | |
4183 | intel_plane->commit_plane(plane, intel_state); | |
4184 | ||
4185 | intel_plane_destroy_state(plane, state); | |
4186 | } | |
4187 | ||
4a3b8769 | 4188 | static void intel_disable_sprite_planes(struct drm_crtc *crtc) |
bb53d4ae VS |
4189 | { |
4190 | struct drm_device *dev = crtc->dev; | |
4191 | enum pipe pipe = to_intel_crtc(crtc)->pipe; | |
af2b653b | 4192 | struct drm_plane *plane; |
bb53d4ae VS |
4193 | struct intel_plane *intel_plane; |
4194 | ||
af2b653b MR |
4195 | drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) { |
4196 | intel_plane = to_intel_plane(plane); | |
0d703d4e MR |
4197 | if (plane->fb && intel_plane->pipe == pipe) |
4198 | disable_plane_internal(plane); | |
af2b653b | 4199 | } |
bb53d4ae VS |
4200 | } |
4201 | ||
20bc8673 | 4202 | void hsw_enable_ips(struct intel_crtc *crtc) |
d77e4531 | 4203 | { |
cea165c3 VS |
4204 | struct drm_device *dev = crtc->base.dev; |
4205 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d77e4531 | 4206 | |
6e3c9717 | 4207 | if (!crtc->config->ips_enabled) |
d77e4531 PZ |
4208 | return; |
4209 | ||
cea165c3 VS |
4210 | /* We can only enable IPS after we enable a plane and wait for a vblank */ |
4211 | intel_wait_for_vblank(dev, crtc->pipe); | |
4212 | ||
d77e4531 | 4213 | assert_plane_enabled(dev_priv, crtc->plane); |
cea165c3 | 4214 | if (IS_BROADWELL(dev)) { |
2a114cc1 BW |
4215 | mutex_lock(&dev_priv->rps.hw_lock); |
4216 | WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0xc0000000)); | |
4217 | mutex_unlock(&dev_priv->rps.hw_lock); | |
4218 | /* Quoting Art Runyan: "its not safe to expect any particular | |
4219 | * value in IPS_CTL bit 31 after enabling IPS through the | |
e59150dc JB |
4220 | * mailbox." Moreover, the mailbox may return a bogus state, |
4221 | * so we need to just enable it and continue on. | |
2a114cc1 BW |
4222 | */ |
4223 | } else { | |
4224 | I915_WRITE(IPS_CTL, IPS_ENABLE); | |
4225 | /* The bit only becomes 1 in the next vblank, so this wait here | |
4226 | * is essentially intel_wait_for_vblank. If we don't have this | |
4227 | * and don't wait for vblanks until the end of crtc_enable, then | |
4228 | * the HW state readout code will complain that the expected | |
4229 | * IPS_CTL value is not the one we read. */ | |
4230 | if (wait_for(I915_READ_NOTRACE(IPS_CTL) & IPS_ENABLE, 50)) | |
4231 | DRM_ERROR("Timed out waiting for IPS enable\n"); | |
4232 | } | |
d77e4531 PZ |
4233 | } |
4234 | ||
20bc8673 | 4235 | void hsw_disable_ips(struct intel_crtc *crtc) |
d77e4531 PZ |
4236 | { |
4237 | struct drm_device *dev = crtc->base.dev; | |
4238 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4239 | ||
6e3c9717 | 4240 | if (!crtc->config->ips_enabled) |
d77e4531 PZ |
4241 | return; |
4242 | ||
4243 | assert_plane_enabled(dev_priv, crtc->plane); | |
23d0b130 | 4244 | if (IS_BROADWELL(dev)) { |
2a114cc1 BW |
4245 | mutex_lock(&dev_priv->rps.hw_lock); |
4246 | WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0)); | |
4247 | mutex_unlock(&dev_priv->rps.hw_lock); | |
23d0b130 BW |
4248 | /* wait for pcode to finish disabling IPS, which may take up to 42ms */ |
4249 | if (wait_for((I915_READ(IPS_CTL) & IPS_ENABLE) == 0, 42)) | |
4250 | DRM_ERROR("Timed out waiting for IPS disable\n"); | |
e59150dc | 4251 | } else { |
2a114cc1 | 4252 | I915_WRITE(IPS_CTL, 0); |
e59150dc JB |
4253 | POSTING_READ(IPS_CTL); |
4254 | } | |
d77e4531 PZ |
4255 | |
4256 | /* We need to wait for a vblank before we can disable the plane. */ | |
4257 | intel_wait_for_vblank(dev, crtc->pipe); | |
4258 | } | |
4259 | ||
4260 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ | |
4261 | static void intel_crtc_load_lut(struct drm_crtc *crtc) | |
4262 | { | |
4263 | struct drm_device *dev = crtc->dev; | |
4264 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4265 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4266 | enum pipe pipe = intel_crtc->pipe; | |
4267 | int palreg = PALETTE(pipe); | |
4268 | int i; | |
4269 | bool reenable_ips = false; | |
4270 | ||
4271 | /* The clocks have to be on to load the palette. */ | |
83d65738 | 4272 | if (!crtc->state->enable || !intel_crtc->active) |
d77e4531 PZ |
4273 | return; |
4274 | ||
4275 | if (!HAS_PCH_SPLIT(dev_priv->dev)) { | |
409ee761 | 4276 | if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DSI)) |
d77e4531 PZ |
4277 | assert_dsi_pll_enabled(dev_priv); |
4278 | else | |
4279 | assert_pll_enabled(dev_priv, pipe); | |
4280 | } | |
4281 | ||
4282 | /* use legacy palette for Ironlake */ | |
7a1db49a | 4283 | if (!HAS_GMCH_DISPLAY(dev)) |
d77e4531 PZ |
4284 | palreg = LGC_PALETTE(pipe); |
4285 | ||
4286 | /* Workaround : Do not read or write the pipe palette/gamma data while | |
4287 | * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled. | |
4288 | */ | |
6e3c9717 | 4289 | if (IS_HASWELL(dev) && intel_crtc->config->ips_enabled && |
d77e4531 PZ |
4290 | ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) == |
4291 | GAMMA_MODE_MODE_SPLIT)) { | |
4292 | hsw_disable_ips(intel_crtc); | |
4293 | reenable_ips = true; | |
4294 | } | |
4295 | ||
4296 | for (i = 0; i < 256; i++) { | |
4297 | I915_WRITE(palreg + 4 * i, | |
4298 | (intel_crtc->lut_r[i] << 16) | | |
4299 | (intel_crtc->lut_g[i] << 8) | | |
4300 | intel_crtc->lut_b[i]); | |
4301 | } | |
4302 | ||
4303 | if (reenable_ips) | |
4304 | hsw_enable_ips(intel_crtc); | |
4305 | } | |
4306 | ||
d3eedb1a VS |
4307 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
4308 | { | |
4309 | if (!enable && intel_crtc->overlay) { | |
4310 | struct drm_device *dev = intel_crtc->base.dev; | |
4311 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4312 | ||
4313 | mutex_lock(&dev->struct_mutex); | |
4314 | dev_priv->mm.interruptible = false; | |
4315 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
4316 | dev_priv->mm.interruptible = true; | |
4317 | mutex_unlock(&dev->struct_mutex); | |
4318 | } | |
4319 | ||
4320 | /* Let userspace switch the overlay on again. In most cases userspace | |
4321 | * has to recompute where to put it anyway. | |
4322 | */ | |
4323 | } | |
4324 | ||
d3eedb1a | 4325 | static void intel_crtc_enable_planes(struct drm_crtc *crtc) |
a5c4d7bc VS |
4326 | { |
4327 | struct drm_device *dev = crtc->dev; | |
a5c4d7bc VS |
4328 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4329 | int pipe = intel_crtc->pipe; | |
a5c4d7bc | 4330 | |
fdd508a6 | 4331 | intel_enable_primary_hw_plane(crtc->primary, crtc); |
4a3b8769 | 4332 | intel_enable_sprite_planes(crtc); |
a5c4d7bc | 4333 | intel_crtc_update_cursor(crtc, true); |
d3eedb1a | 4334 | intel_crtc_dpms_overlay(intel_crtc, true); |
a5c4d7bc VS |
4335 | |
4336 | hsw_enable_ips(intel_crtc); | |
4337 | ||
4338 | mutex_lock(&dev->struct_mutex); | |
7ff0ebcc | 4339 | intel_fbc_update(dev); |
a5c4d7bc | 4340 | mutex_unlock(&dev->struct_mutex); |
f99d7069 DV |
4341 | |
4342 | /* | |
4343 | * FIXME: Once we grow proper nuclear flip support out of this we need | |
4344 | * to compute the mask of flip planes precisely. For the time being | |
4345 | * consider this a flip from a NULL plane. | |
4346 | */ | |
4347 | intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_ALL_MASK(pipe)); | |
a5c4d7bc VS |
4348 | } |
4349 | ||
d3eedb1a | 4350 | static void intel_crtc_disable_planes(struct drm_crtc *crtc) |
a5c4d7bc VS |
4351 | { |
4352 | struct drm_device *dev = crtc->dev; | |
4353 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4354 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4355 | int pipe = intel_crtc->pipe; | |
a5c4d7bc VS |
4356 | |
4357 | intel_crtc_wait_for_pending_flips(crtc); | |
a5c4d7bc | 4358 | |
e35fef21 | 4359 | if (dev_priv->fbc.crtc == intel_crtc) |
7ff0ebcc | 4360 | intel_fbc_disable(dev); |
a5c4d7bc VS |
4361 | |
4362 | hsw_disable_ips(intel_crtc); | |
4363 | ||
d3eedb1a | 4364 | intel_crtc_dpms_overlay(intel_crtc, false); |
a5c4d7bc | 4365 | intel_crtc_update_cursor(crtc, false); |
4a3b8769 | 4366 | intel_disable_sprite_planes(crtc); |
fdd508a6 | 4367 | intel_disable_primary_hw_plane(crtc->primary, crtc); |
f98551ae | 4368 | |
f99d7069 DV |
4369 | /* |
4370 | * FIXME: Once we grow proper nuclear flip support out of this we need | |
4371 | * to compute the mask of flip planes precisely. For the time being | |
4372 | * consider this a flip to a NULL plane. | |
4373 | */ | |
4374 | intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_ALL_MASK(pipe)); | |
a5c4d7bc VS |
4375 | } |
4376 | ||
f67a559d JB |
4377 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
4378 | { | |
4379 | struct drm_device *dev = crtc->dev; | |
4380 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4381 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 4382 | struct intel_encoder *encoder; |
f67a559d | 4383 | int pipe = intel_crtc->pipe; |
f67a559d | 4384 | |
83d65738 | 4385 | WARN_ON(!crtc->state->enable); |
08a48469 | 4386 | |
f67a559d JB |
4387 | if (intel_crtc->active) |
4388 | return; | |
4389 | ||
6e3c9717 | 4390 | if (intel_crtc->config->has_pch_encoder) |
b14b1055 DV |
4391 | intel_prepare_shared_dpll(intel_crtc); |
4392 | ||
6e3c9717 | 4393 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 4394 | intel_dp_set_m_n(intel_crtc, M1_N1); |
29407aab DV |
4395 | |
4396 | intel_set_pipe_timings(intel_crtc); | |
4397 | ||
6e3c9717 | 4398 | if (intel_crtc->config->has_pch_encoder) { |
29407aab | 4399 | intel_cpu_transcoder_set_m_n(intel_crtc, |
6e3c9717 | 4400 | &intel_crtc->config->fdi_m_n, NULL); |
29407aab DV |
4401 | } |
4402 | ||
4403 | ironlake_set_pipeconf(crtc); | |
4404 | ||
f67a559d | 4405 | intel_crtc->active = true; |
8664281b | 4406 | |
a72e4c9f DV |
4407 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4408 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true); | |
8664281b | 4409 | |
f6736a1a | 4410 | for_each_encoder_on_crtc(dev, crtc, encoder) |
952735ee DV |
4411 | if (encoder->pre_enable) |
4412 | encoder->pre_enable(encoder); | |
f67a559d | 4413 | |
6e3c9717 | 4414 | if (intel_crtc->config->has_pch_encoder) { |
fff367c7 DV |
4415 | /* Note: FDI PLL enabling _must_ be done before we enable the |
4416 | * cpu pipes, hence this is separate from all the other fdi/pch | |
4417 | * enabling. */ | |
88cefb6c | 4418 | ironlake_fdi_pll_enable(intel_crtc); |
46b6f814 DV |
4419 | } else { |
4420 | assert_fdi_tx_disabled(dev_priv, pipe); | |
4421 | assert_fdi_rx_disabled(dev_priv, pipe); | |
4422 | } | |
f67a559d | 4423 | |
b074cec8 | 4424 | ironlake_pfit_enable(intel_crtc); |
f67a559d | 4425 | |
9c54c0dd JB |
4426 | /* |
4427 | * On ILK+ LUT must be loaded before the pipe is running but with | |
4428 | * clocks enabled | |
4429 | */ | |
4430 | intel_crtc_load_lut(crtc); | |
4431 | ||
f37fcc2a | 4432 | intel_update_watermarks(crtc); |
e1fdc473 | 4433 | intel_enable_pipe(intel_crtc); |
f67a559d | 4434 | |
6e3c9717 | 4435 | if (intel_crtc->config->has_pch_encoder) |
f67a559d | 4436 | ironlake_pch_enable(crtc); |
c98e9dcf | 4437 | |
f9b61ff6 DV |
4438 | assert_vblank_disabled(crtc); |
4439 | drm_crtc_vblank_on(crtc); | |
4440 | ||
fa5c73b1 DV |
4441 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4442 | encoder->enable(encoder); | |
61b77ddd DV |
4443 | |
4444 | if (HAS_PCH_CPT(dev)) | |
a1520318 | 4445 | cpt_verify_modeset(dev, intel_crtc->pipe); |
6ce94100 | 4446 | |
d3eedb1a | 4447 | intel_crtc_enable_planes(crtc); |
6be4a607 JB |
4448 | } |
4449 | ||
42db64ef PZ |
4450 | /* IPS only exists on ULT machines and is tied to pipe A. */ |
4451 | static bool hsw_crtc_supports_ips(struct intel_crtc *crtc) | |
4452 | { | |
f5adf94e | 4453 | return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A; |
42db64ef PZ |
4454 | } |
4455 | ||
e4916946 PZ |
4456 | /* |
4457 | * This implements the workaround described in the "notes" section of the mode | |
4458 | * set sequence documentation. When going from no pipes or single pipe to | |
4459 | * multiple pipes, and planes are enabled after the pipe, we need to wait at | |
4460 | * least 2 vblanks on the first pipe before enabling planes on the second pipe. | |
4461 | */ | |
4462 | static void haswell_mode_set_planes_workaround(struct intel_crtc *crtc) | |
4463 | { | |
4464 | struct drm_device *dev = crtc->base.dev; | |
4465 | struct intel_crtc *crtc_it, *other_active_crtc = NULL; | |
4466 | ||
4467 | /* We want to get the other_active_crtc only if there's only 1 other | |
4468 | * active crtc. */ | |
d3fcc808 | 4469 | for_each_intel_crtc(dev, crtc_it) { |
e4916946 PZ |
4470 | if (!crtc_it->active || crtc_it == crtc) |
4471 | continue; | |
4472 | ||
4473 | if (other_active_crtc) | |
4474 | return; | |
4475 | ||
4476 | other_active_crtc = crtc_it; | |
4477 | } | |
4478 | if (!other_active_crtc) | |
4479 | return; | |
4480 | ||
4481 | intel_wait_for_vblank(dev, other_active_crtc->pipe); | |
4482 | intel_wait_for_vblank(dev, other_active_crtc->pipe); | |
4483 | } | |
4484 | ||
4f771f10 PZ |
4485 | static void haswell_crtc_enable(struct drm_crtc *crtc) |
4486 | { | |
4487 | struct drm_device *dev = crtc->dev; | |
4488 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4489 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4490 | struct intel_encoder *encoder; | |
4491 | int pipe = intel_crtc->pipe; | |
4f771f10 | 4492 | |
83d65738 | 4493 | WARN_ON(!crtc->state->enable); |
4f771f10 PZ |
4494 | |
4495 | if (intel_crtc->active) | |
4496 | return; | |
4497 | ||
df8ad70c DV |
4498 | if (intel_crtc_to_shared_dpll(intel_crtc)) |
4499 | intel_enable_shared_dpll(intel_crtc); | |
4500 | ||
6e3c9717 | 4501 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 4502 | intel_dp_set_m_n(intel_crtc, M1_N1); |
229fca97 DV |
4503 | |
4504 | intel_set_pipe_timings(intel_crtc); | |
4505 | ||
6e3c9717 ACO |
4506 | if (intel_crtc->config->cpu_transcoder != TRANSCODER_EDP) { |
4507 | I915_WRITE(PIPE_MULT(intel_crtc->config->cpu_transcoder), | |
4508 | intel_crtc->config->pixel_multiplier - 1); | |
ebb69c95 CT |
4509 | } |
4510 | ||
6e3c9717 | 4511 | if (intel_crtc->config->has_pch_encoder) { |
229fca97 | 4512 | intel_cpu_transcoder_set_m_n(intel_crtc, |
6e3c9717 | 4513 | &intel_crtc->config->fdi_m_n, NULL); |
229fca97 DV |
4514 | } |
4515 | ||
4516 | haswell_set_pipeconf(crtc); | |
4517 | ||
4518 | intel_set_pipe_csc(crtc); | |
4519 | ||
4f771f10 | 4520 | intel_crtc->active = true; |
8664281b | 4521 | |
a72e4c9f | 4522 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4f771f10 PZ |
4523 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4524 | if (encoder->pre_enable) | |
4525 | encoder->pre_enable(encoder); | |
4526 | ||
6e3c9717 | 4527 | if (intel_crtc->config->has_pch_encoder) { |
a72e4c9f DV |
4528 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
4529 | true); | |
4fe9467d ID |
4530 | dev_priv->display.fdi_link_train(crtc); |
4531 | } | |
4532 | ||
1f544388 | 4533 | intel_ddi_enable_pipe_clock(intel_crtc); |
4f771f10 | 4534 | |
bd2e244f JB |
4535 | if (IS_SKYLAKE(dev)) |
4536 | skylake_pfit_enable(intel_crtc); | |
4537 | else | |
4538 | ironlake_pfit_enable(intel_crtc); | |
4f771f10 PZ |
4539 | |
4540 | /* | |
4541 | * On ILK+ LUT must be loaded before the pipe is running but with | |
4542 | * clocks enabled | |
4543 | */ | |
4544 | intel_crtc_load_lut(crtc); | |
4545 | ||
1f544388 | 4546 | intel_ddi_set_pipe_settings(crtc); |
8228c251 | 4547 | intel_ddi_enable_transcoder_func(crtc); |
4f771f10 | 4548 | |
f37fcc2a | 4549 | intel_update_watermarks(crtc); |
e1fdc473 | 4550 | intel_enable_pipe(intel_crtc); |
42db64ef | 4551 | |
6e3c9717 | 4552 | if (intel_crtc->config->has_pch_encoder) |
1507e5bd | 4553 | lpt_pch_enable(crtc); |
4f771f10 | 4554 | |
6e3c9717 | 4555 | if (intel_crtc->config->dp_encoder_is_mst) |
0e32b39c DA |
4556 | intel_ddi_set_vc_payload_alloc(crtc, true); |
4557 | ||
f9b61ff6 DV |
4558 | assert_vblank_disabled(crtc); |
4559 | drm_crtc_vblank_on(crtc); | |
4560 | ||
8807e55b | 4561 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
4f771f10 | 4562 | encoder->enable(encoder); |
8807e55b JN |
4563 | intel_opregion_notify_encoder(encoder, true); |
4564 | } | |
4f771f10 | 4565 | |
e4916946 PZ |
4566 | /* If we change the relative order between pipe/planes enabling, we need |
4567 | * to change the workaround. */ | |
4568 | haswell_mode_set_planes_workaround(intel_crtc); | |
d3eedb1a | 4569 | intel_crtc_enable_planes(crtc); |
4f771f10 PZ |
4570 | } |
4571 | ||
bd2e244f JB |
4572 | static void skylake_pfit_disable(struct intel_crtc *crtc) |
4573 | { | |
4574 | struct drm_device *dev = crtc->base.dev; | |
4575 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4576 | int pipe = crtc->pipe; | |
4577 | ||
4578 | /* To avoid upsetting the power well on haswell only disable the pfit if | |
4579 | * it's in use. The hw state code will make sure we get this right. */ | |
6e3c9717 | 4580 | if (crtc->config->pch_pfit.enabled) { |
bd2e244f JB |
4581 | I915_WRITE(PS_CTL(pipe), 0); |
4582 | I915_WRITE(PS_WIN_POS(pipe), 0); | |
4583 | I915_WRITE(PS_WIN_SZ(pipe), 0); | |
4584 | } | |
4585 | } | |
4586 | ||
3f8dce3a DV |
4587 | static void ironlake_pfit_disable(struct intel_crtc *crtc) |
4588 | { | |
4589 | struct drm_device *dev = crtc->base.dev; | |
4590 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4591 | int pipe = crtc->pipe; | |
4592 | ||
4593 | /* To avoid upsetting the power well on haswell only disable the pfit if | |
4594 | * it's in use. The hw state code will make sure we get this right. */ | |
6e3c9717 | 4595 | if (crtc->config->pch_pfit.enabled) { |
3f8dce3a DV |
4596 | I915_WRITE(PF_CTL(pipe), 0); |
4597 | I915_WRITE(PF_WIN_POS(pipe), 0); | |
4598 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
4599 | } | |
4600 | } | |
4601 | ||
6be4a607 JB |
4602 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
4603 | { | |
4604 | struct drm_device *dev = crtc->dev; | |
4605 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4606 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 4607 | struct intel_encoder *encoder; |
6be4a607 | 4608 | int pipe = intel_crtc->pipe; |
5eddb70b | 4609 | u32 reg, temp; |
b52eb4dc | 4610 | |
f7abfe8b CW |
4611 | if (!intel_crtc->active) |
4612 | return; | |
4613 | ||
d3eedb1a | 4614 | intel_crtc_disable_planes(crtc); |
a5c4d7bc | 4615 | |
ea9d758d DV |
4616 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4617 | encoder->disable(encoder); | |
4618 | ||
f9b61ff6 DV |
4619 | drm_crtc_vblank_off(crtc); |
4620 | assert_vblank_disabled(crtc); | |
4621 | ||
6e3c9717 | 4622 | if (intel_crtc->config->has_pch_encoder) |
a72e4c9f | 4623 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false); |
d925c59a | 4624 | |
575f7ab7 | 4625 | intel_disable_pipe(intel_crtc); |
32f9d658 | 4626 | |
3f8dce3a | 4627 | ironlake_pfit_disable(intel_crtc); |
2c07245f | 4628 | |
bf49ec8c DV |
4629 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4630 | if (encoder->post_disable) | |
4631 | encoder->post_disable(encoder); | |
2c07245f | 4632 | |
6e3c9717 | 4633 | if (intel_crtc->config->has_pch_encoder) { |
d925c59a | 4634 | ironlake_fdi_disable(crtc); |
913d8d11 | 4635 | |
d925c59a | 4636 | ironlake_disable_pch_transcoder(dev_priv, pipe); |
6be4a607 | 4637 | |
d925c59a DV |
4638 | if (HAS_PCH_CPT(dev)) { |
4639 | /* disable TRANS_DP_CTL */ | |
4640 | reg = TRANS_DP_CTL(pipe); | |
4641 | temp = I915_READ(reg); | |
4642 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | | |
4643 | TRANS_DP_PORT_SEL_MASK); | |
4644 | temp |= TRANS_DP_PORT_SEL_NONE; | |
4645 | I915_WRITE(reg, temp); | |
4646 | ||
4647 | /* disable DPLL_SEL */ | |
4648 | temp = I915_READ(PCH_DPLL_SEL); | |
11887397 | 4649 | temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe)); |
d925c59a | 4650 | I915_WRITE(PCH_DPLL_SEL, temp); |
9db4a9c7 | 4651 | } |
e3421a18 | 4652 | |
d925c59a | 4653 | /* disable PCH DPLL */ |
e72f9fbf | 4654 | intel_disable_shared_dpll(intel_crtc); |
8db9d77b | 4655 | |
d925c59a DV |
4656 | ironlake_fdi_pll_disable(intel_crtc); |
4657 | } | |
6b383a7f | 4658 | |
f7abfe8b | 4659 | intel_crtc->active = false; |
46ba614c | 4660 | intel_update_watermarks(crtc); |
d1ebd816 BW |
4661 | |
4662 | mutex_lock(&dev->struct_mutex); | |
7ff0ebcc | 4663 | intel_fbc_update(dev); |
d1ebd816 | 4664 | mutex_unlock(&dev->struct_mutex); |
6be4a607 | 4665 | } |
1b3c7a47 | 4666 | |
4f771f10 | 4667 | static void haswell_crtc_disable(struct drm_crtc *crtc) |
ee7b9f93 | 4668 | { |
4f771f10 PZ |
4669 | struct drm_device *dev = crtc->dev; |
4670 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee7b9f93 | 4671 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4f771f10 | 4672 | struct intel_encoder *encoder; |
6e3c9717 | 4673 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
ee7b9f93 | 4674 | |
4f771f10 PZ |
4675 | if (!intel_crtc->active) |
4676 | return; | |
4677 | ||
d3eedb1a | 4678 | intel_crtc_disable_planes(crtc); |
dda9a66a | 4679 | |
8807e55b JN |
4680 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
4681 | intel_opregion_notify_encoder(encoder, false); | |
4f771f10 | 4682 | encoder->disable(encoder); |
8807e55b | 4683 | } |
4f771f10 | 4684 | |
f9b61ff6 DV |
4685 | drm_crtc_vblank_off(crtc); |
4686 | assert_vblank_disabled(crtc); | |
4687 | ||
6e3c9717 | 4688 | if (intel_crtc->config->has_pch_encoder) |
a72e4c9f DV |
4689 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
4690 | false); | |
575f7ab7 | 4691 | intel_disable_pipe(intel_crtc); |
4f771f10 | 4692 | |
6e3c9717 | 4693 | if (intel_crtc->config->dp_encoder_is_mst) |
a4bf214f VS |
4694 | intel_ddi_set_vc_payload_alloc(crtc, false); |
4695 | ||
ad80a810 | 4696 | intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder); |
4f771f10 | 4697 | |
bd2e244f JB |
4698 | if (IS_SKYLAKE(dev)) |
4699 | skylake_pfit_disable(intel_crtc); | |
4700 | else | |
4701 | ironlake_pfit_disable(intel_crtc); | |
4f771f10 | 4702 | |
1f544388 | 4703 | intel_ddi_disable_pipe_clock(intel_crtc); |
4f771f10 | 4704 | |
6e3c9717 | 4705 | if (intel_crtc->config->has_pch_encoder) { |
ab4d966c | 4706 | lpt_disable_pch_transcoder(dev_priv); |
1ad960f2 | 4707 | intel_ddi_fdi_disable(crtc); |
83616634 | 4708 | } |
4f771f10 | 4709 | |
97b040aa ID |
4710 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4711 | if (encoder->post_disable) | |
4712 | encoder->post_disable(encoder); | |
4713 | ||
4f771f10 | 4714 | intel_crtc->active = false; |
46ba614c | 4715 | intel_update_watermarks(crtc); |
4f771f10 PZ |
4716 | |
4717 | mutex_lock(&dev->struct_mutex); | |
7ff0ebcc | 4718 | intel_fbc_update(dev); |
4f771f10 | 4719 | mutex_unlock(&dev->struct_mutex); |
df8ad70c DV |
4720 | |
4721 | if (intel_crtc_to_shared_dpll(intel_crtc)) | |
4722 | intel_disable_shared_dpll(intel_crtc); | |
4f771f10 PZ |
4723 | } |
4724 | ||
ee7b9f93 JB |
4725 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
4726 | { | |
4727 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
e72f9fbf | 4728 | intel_put_shared_dpll(intel_crtc); |
ee7b9f93 JB |
4729 | } |
4730 | ||
6441ab5f | 4731 | |
2dd24552 JB |
4732 | static void i9xx_pfit_enable(struct intel_crtc *crtc) |
4733 | { | |
4734 | struct drm_device *dev = crtc->base.dev; | |
4735 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 4736 | struct intel_crtc_state *pipe_config = crtc->config; |
2dd24552 | 4737 | |
681a8504 | 4738 | if (!pipe_config->gmch_pfit.control) |
2dd24552 JB |
4739 | return; |
4740 | ||
2dd24552 | 4741 | /* |
c0b03411 DV |
4742 | * The panel fitter should only be adjusted whilst the pipe is disabled, |
4743 | * according to register description and PRM. | |
2dd24552 | 4744 | */ |
c0b03411 DV |
4745 | WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE); |
4746 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
2dd24552 | 4747 | |
b074cec8 JB |
4748 | I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios); |
4749 | I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control); | |
5a80c45c DV |
4750 | |
4751 | /* Border color in case we don't scale up to the full screen. Black by | |
4752 | * default, change to something else for debugging. */ | |
4753 | I915_WRITE(BCLRPAT(crtc->pipe), 0); | |
2dd24552 JB |
4754 | } |
4755 | ||
d05410f9 DA |
4756 | static enum intel_display_power_domain port_to_power_domain(enum port port) |
4757 | { | |
4758 | switch (port) { | |
4759 | case PORT_A: | |
4760 | return POWER_DOMAIN_PORT_DDI_A_4_LANES; | |
4761 | case PORT_B: | |
4762 | return POWER_DOMAIN_PORT_DDI_B_4_LANES; | |
4763 | case PORT_C: | |
4764 | return POWER_DOMAIN_PORT_DDI_C_4_LANES; | |
4765 | case PORT_D: | |
4766 | return POWER_DOMAIN_PORT_DDI_D_4_LANES; | |
4767 | default: | |
4768 | WARN_ON_ONCE(1); | |
4769 | return POWER_DOMAIN_PORT_OTHER; | |
4770 | } | |
4771 | } | |
4772 | ||
77d22dca ID |
4773 | #define for_each_power_domain(domain, mask) \ |
4774 | for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \ | |
4775 | if ((1 << (domain)) & (mask)) | |
4776 | ||
319be8ae ID |
4777 | enum intel_display_power_domain |
4778 | intel_display_port_power_domain(struct intel_encoder *intel_encoder) | |
4779 | { | |
4780 | struct drm_device *dev = intel_encoder->base.dev; | |
4781 | struct intel_digital_port *intel_dig_port; | |
4782 | ||
4783 | switch (intel_encoder->type) { | |
4784 | case INTEL_OUTPUT_UNKNOWN: | |
4785 | /* Only DDI platforms should ever use this output type */ | |
4786 | WARN_ON_ONCE(!HAS_DDI(dev)); | |
4787 | case INTEL_OUTPUT_DISPLAYPORT: | |
4788 | case INTEL_OUTPUT_HDMI: | |
4789 | case INTEL_OUTPUT_EDP: | |
4790 | intel_dig_port = enc_to_dig_port(&intel_encoder->base); | |
d05410f9 | 4791 | return port_to_power_domain(intel_dig_port->port); |
0e32b39c DA |
4792 | case INTEL_OUTPUT_DP_MST: |
4793 | intel_dig_port = enc_to_mst(&intel_encoder->base)->primary; | |
4794 | return port_to_power_domain(intel_dig_port->port); | |
319be8ae ID |
4795 | case INTEL_OUTPUT_ANALOG: |
4796 | return POWER_DOMAIN_PORT_CRT; | |
4797 | case INTEL_OUTPUT_DSI: | |
4798 | return POWER_DOMAIN_PORT_DSI; | |
4799 | default: | |
4800 | return POWER_DOMAIN_PORT_OTHER; | |
4801 | } | |
4802 | } | |
4803 | ||
4804 | static unsigned long get_crtc_power_domains(struct drm_crtc *crtc) | |
77d22dca | 4805 | { |
319be8ae ID |
4806 | struct drm_device *dev = crtc->dev; |
4807 | struct intel_encoder *intel_encoder; | |
4808 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4809 | enum pipe pipe = intel_crtc->pipe; | |
77d22dca ID |
4810 | unsigned long mask; |
4811 | enum transcoder transcoder; | |
4812 | ||
4813 | transcoder = intel_pipe_to_cpu_transcoder(dev->dev_private, pipe); | |
4814 | ||
4815 | mask = BIT(POWER_DOMAIN_PIPE(pipe)); | |
4816 | mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder)); | |
6e3c9717 ACO |
4817 | if (intel_crtc->config->pch_pfit.enabled || |
4818 | intel_crtc->config->pch_pfit.force_thru) | |
77d22dca ID |
4819 | mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe)); |
4820 | ||
319be8ae ID |
4821 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) |
4822 | mask |= BIT(intel_display_port_power_domain(intel_encoder)); | |
4823 | ||
77d22dca ID |
4824 | return mask; |
4825 | } | |
4826 | ||
77d22dca ID |
4827 | static void modeset_update_crtc_power_domains(struct drm_device *dev) |
4828 | { | |
4829 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4830 | unsigned long pipe_domains[I915_MAX_PIPES] = { 0, }; | |
4831 | struct intel_crtc *crtc; | |
4832 | ||
4833 | /* | |
4834 | * First get all needed power domains, then put all unneeded, to avoid | |
4835 | * any unnecessary toggling of the power wells. | |
4836 | */ | |
d3fcc808 | 4837 | for_each_intel_crtc(dev, crtc) { |
77d22dca ID |
4838 | enum intel_display_power_domain domain; |
4839 | ||
83d65738 | 4840 | if (!crtc->base.state->enable) |
77d22dca ID |
4841 | continue; |
4842 | ||
319be8ae | 4843 | pipe_domains[crtc->pipe] = get_crtc_power_domains(&crtc->base); |
77d22dca ID |
4844 | |
4845 | for_each_power_domain(domain, pipe_domains[crtc->pipe]) | |
4846 | intel_display_power_get(dev_priv, domain); | |
4847 | } | |
4848 | ||
50f6e502 VS |
4849 | if (dev_priv->display.modeset_global_resources) |
4850 | dev_priv->display.modeset_global_resources(dev); | |
4851 | ||
d3fcc808 | 4852 | for_each_intel_crtc(dev, crtc) { |
77d22dca ID |
4853 | enum intel_display_power_domain domain; |
4854 | ||
4855 | for_each_power_domain(domain, crtc->enabled_power_domains) | |
4856 | intel_display_power_put(dev_priv, domain); | |
4857 | ||
4858 | crtc->enabled_power_domains = pipe_domains[crtc->pipe]; | |
4859 | } | |
4860 | ||
4861 | intel_display_set_init_power(dev_priv, false); | |
4862 | } | |
4863 | ||
dfcab17e | 4864 | /* returns HPLL frequency in kHz */ |
f8bf63fd | 4865 | static int valleyview_get_vco(struct drm_i915_private *dev_priv) |
30a970c6 | 4866 | { |
586f49dc | 4867 | int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 }; |
30a970c6 | 4868 | |
586f49dc JB |
4869 | /* Obtain SKU information */ |
4870 | mutex_lock(&dev_priv->dpio_lock); | |
4871 | hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) & | |
4872 | CCK_FUSE_HPLL_FREQ_MASK; | |
4873 | mutex_unlock(&dev_priv->dpio_lock); | |
30a970c6 | 4874 | |
dfcab17e | 4875 | return vco_freq[hpll_freq] * 1000; |
30a970c6 JB |
4876 | } |
4877 | ||
f8bf63fd VS |
4878 | static void vlv_update_cdclk(struct drm_device *dev) |
4879 | { | |
4880 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4881 | ||
4882 | dev_priv->vlv_cdclk_freq = dev_priv->display.get_display_clock_speed(dev); | |
43dc52c3 | 4883 | DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz\n", |
f8bf63fd VS |
4884 | dev_priv->vlv_cdclk_freq); |
4885 | ||
4886 | /* | |
4887 | * Program the gmbus_freq based on the cdclk frequency. | |
4888 | * BSpec erroneously claims we should aim for 4MHz, but | |
4889 | * in fact 1MHz is the correct frequency. | |
4890 | */ | |
6be1e3d3 | 4891 | I915_WRITE(GMBUSFREQ_VLV, DIV_ROUND_UP(dev_priv->vlv_cdclk_freq, 1000)); |
f8bf63fd VS |
4892 | } |
4893 | ||
30a970c6 JB |
4894 | /* Adjust CDclk dividers to allow high res or save power if possible */ |
4895 | static void valleyview_set_cdclk(struct drm_device *dev, int cdclk) | |
4896 | { | |
4897 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4898 | u32 val, cmd; | |
4899 | ||
d197b7d3 | 4900 | WARN_ON(dev_priv->display.get_display_clock_speed(dev) != dev_priv->vlv_cdclk_freq); |
d60c4473 | 4901 | |
dfcab17e | 4902 | if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */ |
30a970c6 | 4903 | cmd = 2; |
dfcab17e | 4904 | else if (cdclk == 266667) |
30a970c6 JB |
4905 | cmd = 1; |
4906 | else | |
4907 | cmd = 0; | |
4908 | ||
4909 | mutex_lock(&dev_priv->rps.hw_lock); | |
4910 | val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ); | |
4911 | val &= ~DSPFREQGUAR_MASK; | |
4912 | val |= (cmd << DSPFREQGUAR_SHIFT); | |
4913 | vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val); | |
4914 | if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & | |
4915 | DSPFREQSTAT_MASK) == (cmd << DSPFREQSTAT_SHIFT), | |
4916 | 50)) { | |
4917 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
4918 | } | |
4919 | mutex_unlock(&dev_priv->rps.hw_lock); | |
4920 | ||
dfcab17e | 4921 | if (cdclk == 400000) { |
6bcda4f0 | 4922 | u32 divider; |
30a970c6 | 4923 | |
6bcda4f0 | 4924 | divider = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1; |
30a970c6 JB |
4925 | |
4926 | mutex_lock(&dev_priv->dpio_lock); | |
4927 | /* adjust cdclk divider */ | |
4928 | val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL); | |
9cf33db5 | 4929 | val &= ~DISPLAY_FREQUENCY_VALUES; |
30a970c6 JB |
4930 | val |= divider; |
4931 | vlv_cck_write(dev_priv, CCK_DISPLAY_CLOCK_CONTROL, val); | |
a877e801 VS |
4932 | |
4933 | if (wait_for((vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL) & | |
4934 | DISPLAY_FREQUENCY_STATUS) == (divider << DISPLAY_FREQUENCY_STATUS_SHIFT), | |
4935 | 50)) | |
4936 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
30a970c6 JB |
4937 | mutex_unlock(&dev_priv->dpio_lock); |
4938 | } | |
4939 | ||
4940 | mutex_lock(&dev_priv->dpio_lock); | |
4941 | /* adjust self-refresh exit latency value */ | |
4942 | val = vlv_bunit_read(dev_priv, BUNIT_REG_BISOC); | |
4943 | val &= ~0x7f; | |
4944 | ||
4945 | /* | |
4946 | * For high bandwidth configs, we set a higher latency in the bunit | |
4947 | * so that the core display fetch happens in time to avoid underruns. | |
4948 | */ | |
dfcab17e | 4949 | if (cdclk == 400000) |
30a970c6 JB |
4950 | val |= 4500 / 250; /* 4.5 usec */ |
4951 | else | |
4952 | val |= 3000 / 250; /* 3.0 usec */ | |
4953 | vlv_bunit_write(dev_priv, BUNIT_REG_BISOC, val); | |
4954 | mutex_unlock(&dev_priv->dpio_lock); | |
4955 | ||
f8bf63fd | 4956 | vlv_update_cdclk(dev); |
30a970c6 JB |
4957 | } |
4958 | ||
383c5a6a VS |
4959 | static void cherryview_set_cdclk(struct drm_device *dev, int cdclk) |
4960 | { | |
4961 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4962 | u32 val, cmd; | |
4963 | ||
4964 | WARN_ON(dev_priv->display.get_display_clock_speed(dev) != dev_priv->vlv_cdclk_freq); | |
4965 | ||
4966 | switch (cdclk) { | |
383c5a6a VS |
4967 | case 333333: |
4968 | case 320000: | |
383c5a6a | 4969 | case 266667: |
383c5a6a | 4970 | case 200000: |
383c5a6a VS |
4971 | break; |
4972 | default: | |
5f77eeb0 | 4973 | MISSING_CASE(cdclk); |
383c5a6a VS |
4974 | return; |
4975 | } | |
4976 | ||
9d0d3fda VS |
4977 | /* |
4978 | * Specs are full of misinformation, but testing on actual | |
4979 | * hardware has shown that we just need to write the desired | |
4980 | * CCK divider into the Punit register. | |
4981 | */ | |
4982 | cmd = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1; | |
4983 | ||
383c5a6a VS |
4984 | mutex_lock(&dev_priv->rps.hw_lock); |
4985 | val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ); | |
4986 | val &= ~DSPFREQGUAR_MASK_CHV; | |
4987 | val |= (cmd << DSPFREQGUAR_SHIFT_CHV); | |
4988 | vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val); | |
4989 | if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & | |
4990 | DSPFREQSTAT_MASK_CHV) == (cmd << DSPFREQSTAT_SHIFT_CHV), | |
4991 | 50)) { | |
4992 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
4993 | } | |
4994 | mutex_unlock(&dev_priv->rps.hw_lock); | |
4995 | ||
4996 | vlv_update_cdclk(dev); | |
4997 | } | |
4998 | ||
30a970c6 JB |
4999 | static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv, |
5000 | int max_pixclk) | |
5001 | { | |
6bcda4f0 | 5002 | int freq_320 = (dev_priv->hpll_freq << 1) % 320000 != 0 ? 333333 : 320000; |
6cca3195 | 5003 | int limit = IS_CHERRYVIEW(dev_priv) ? 95 : 90; |
29dc7ef3 | 5004 | |
30a970c6 JB |
5005 | /* |
5006 | * Really only a few cases to deal with, as only 4 CDclks are supported: | |
5007 | * 200MHz | |
5008 | * 267MHz | |
29dc7ef3 | 5009 | * 320/333MHz (depends on HPLL freq) |
6cca3195 VS |
5010 | * 400MHz (VLV only) |
5011 | * So we check to see whether we're above 90% (VLV) or 95% (CHV) | |
5012 | * of the lower bin and adjust if needed. | |
e37c67a1 VS |
5013 | * |
5014 | * We seem to get an unstable or solid color picture at 200MHz. | |
5015 | * Not sure what's wrong. For now use 200MHz only when all pipes | |
5016 | * are off. | |
30a970c6 | 5017 | */ |
6cca3195 VS |
5018 | if (!IS_CHERRYVIEW(dev_priv) && |
5019 | max_pixclk > freq_320*limit/100) | |
dfcab17e | 5020 | return 400000; |
6cca3195 | 5021 | else if (max_pixclk > 266667*limit/100) |
29dc7ef3 | 5022 | return freq_320; |
e37c67a1 | 5023 | else if (max_pixclk > 0) |
dfcab17e | 5024 | return 266667; |
e37c67a1 VS |
5025 | else |
5026 | return 200000; | |
30a970c6 JB |
5027 | } |
5028 | ||
2f2d7aa1 VS |
5029 | /* compute the max pixel clock for new configuration */ |
5030 | static int intel_mode_max_pixclk(struct drm_i915_private *dev_priv) | |
30a970c6 JB |
5031 | { |
5032 | struct drm_device *dev = dev_priv->dev; | |
5033 | struct intel_crtc *intel_crtc; | |
5034 | int max_pixclk = 0; | |
5035 | ||
d3fcc808 | 5036 | for_each_intel_crtc(dev, intel_crtc) { |
2f2d7aa1 | 5037 | if (intel_crtc->new_enabled) |
30a970c6 | 5038 | max_pixclk = max(max_pixclk, |
2d112de7 | 5039 | intel_crtc->new_config->base.adjusted_mode.crtc_clock); |
30a970c6 JB |
5040 | } |
5041 | ||
5042 | return max_pixclk; | |
5043 | } | |
5044 | ||
5045 | static void valleyview_modeset_global_pipes(struct drm_device *dev, | |
2f2d7aa1 | 5046 | unsigned *prepare_pipes) |
30a970c6 JB |
5047 | { |
5048 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5049 | struct intel_crtc *intel_crtc; | |
2f2d7aa1 | 5050 | int max_pixclk = intel_mode_max_pixclk(dev_priv); |
30a970c6 | 5051 | |
d60c4473 ID |
5052 | if (valleyview_calc_cdclk(dev_priv, max_pixclk) == |
5053 | dev_priv->vlv_cdclk_freq) | |
30a970c6 JB |
5054 | return; |
5055 | ||
2f2d7aa1 | 5056 | /* disable/enable all currently active pipes while we change cdclk */ |
d3fcc808 | 5057 | for_each_intel_crtc(dev, intel_crtc) |
83d65738 | 5058 | if (intel_crtc->base.state->enable) |
30a970c6 JB |
5059 | *prepare_pipes |= (1 << intel_crtc->pipe); |
5060 | } | |
5061 | ||
1e69cd74 VS |
5062 | static void vlv_program_pfi_credits(struct drm_i915_private *dev_priv) |
5063 | { | |
5064 | unsigned int credits, default_credits; | |
5065 | ||
5066 | if (IS_CHERRYVIEW(dev_priv)) | |
5067 | default_credits = PFI_CREDIT(12); | |
5068 | else | |
5069 | default_credits = PFI_CREDIT(8); | |
5070 | ||
5071 | if (DIV_ROUND_CLOSEST(dev_priv->vlv_cdclk_freq, 1000) >= dev_priv->rps.cz_freq) { | |
5072 | /* CHV suggested value is 31 or 63 */ | |
5073 | if (IS_CHERRYVIEW(dev_priv)) | |
5074 | credits = PFI_CREDIT_31; | |
5075 | else | |
5076 | credits = PFI_CREDIT(15); | |
5077 | } else { | |
5078 | credits = default_credits; | |
5079 | } | |
5080 | ||
5081 | /* | |
5082 | * WA - write default credits before re-programming | |
5083 | * FIXME: should we also set the resend bit here? | |
5084 | */ | |
5085 | I915_WRITE(GCI_CONTROL, VGA_FAST_MODE_DISABLE | | |
5086 | default_credits); | |
5087 | ||
5088 | I915_WRITE(GCI_CONTROL, VGA_FAST_MODE_DISABLE | | |
5089 | credits | PFI_CREDIT_RESEND); | |
5090 | ||
5091 | /* | |
5092 | * FIXME is this guaranteed to clear | |
5093 | * immediately or should we poll for it? | |
5094 | */ | |
5095 | WARN_ON(I915_READ(GCI_CONTROL) & PFI_CREDIT_RESEND); | |
5096 | } | |
5097 | ||
30a970c6 JB |
5098 | static void valleyview_modeset_global_resources(struct drm_device *dev) |
5099 | { | |
5100 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2f2d7aa1 | 5101 | int max_pixclk = intel_mode_max_pixclk(dev_priv); |
30a970c6 JB |
5102 | int req_cdclk = valleyview_calc_cdclk(dev_priv, max_pixclk); |
5103 | ||
383c5a6a | 5104 | if (req_cdclk != dev_priv->vlv_cdclk_freq) { |
738c05c0 ID |
5105 | /* |
5106 | * FIXME: We can end up here with all power domains off, yet | |
5107 | * with a CDCLK frequency other than the minimum. To account | |
5108 | * for this take the PIPE-A power domain, which covers the HW | |
5109 | * blocks needed for the following programming. This can be | |
5110 | * removed once it's guaranteed that we get here either with | |
5111 | * the minimum CDCLK set, or the required power domains | |
5112 | * enabled. | |
5113 | */ | |
5114 | intel_display_power_get(dev_priv, POWER_DOMAIN_PIPE_A); | |
5115 | ||
383c5a6a VS |
5116 | if (IS_CHERRYVIEW(dev)) |
5117 | cherryview_set_cdclk(dev, req_cdclk); | |
5118 | else | |
5119 | valleyview_set_cdclk(dev, req_cdclk); | |
738c05c0 | 5120 | |
1e69cd74 VS |
5121 | vlv_program_pfi_credits(dev_priv); |
5122 | ||
738c05c0 | 5123 | intel_display_power_put(dev_priv, POWER_DOMAIN_PIPE_A); |
383c5a6a | 5124 | } |
30a970c6 JB |
5125 | } |
5126 | ||
89b667f8 JB |
5127 | static void valleyview_crtc_enable(struct drm_crtc *crtc) |
5128 | { | |
5129 | struct drm_device *dev = crtc->dev; | |
a72e4c9f | 5130 | struct drm_i915_private *dev_priv = to_i915(dev); |
89b667f8 JB |
5131 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5132 | struct intel_encoder *encoder; | |
5133 | int pipe = intel_crtc->pipe; | |
23538ef1 | 5134 | bool is_dsi; |
89b667f8 | 5135 | |
83d65738 | 5136 | WARN_ON(!crtc->state->enable); |
89b667f8 JB |
5137 | |
5138 | if (intel_crtc->active) | |
5139 | return; | |
5140 | ||
409ee761 | 5141 | is_dsi = intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DSI); |
8525a235 | 5142 | |
1ae0d137 VS |
5143 | if (!is_dsi) { |
5144 | if (IS_CHERRYVIEW(dev)) | |
6e3c9717 | 5145 | chv_prepare_pll(intel_crtc, intel_crtc->config); |
1ae0d137 | 5146 | else |
6e3c9717 | 5147 | vlv_prepare_pll(intel_crtc, intel_crtc->config); |
1ae0d137 | 5148 | } |
5b18e57c | 5149 | |
6e3c9717 | 5150 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 5151 | intel_dp_set_m_n(intel_crtc, M1_N1); |
5b18e57c DV |
5152 | |
5153 | intel_set_pipe_timings(intel_crtc); | |
5154 | ||
c14b0485 VS |
5155 | if (IS_CHERRYVIEW(dev) && pipe == PIPE_B) { |
5156 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5157 | ||
5158 | I915_WRITE(CHV_BLEND(pipe), CHV_BLEND_LEGACY); | |
5159 | I915_WRITE(CHV_CANVAS(pipe), 0); | |
5160 | } | |
5161 | ||
5b18e57c DV |
5162 | i9xx_set_pipeconf(intel_crtc); |
5163 | ||
89b667f8 | 5164 | intel_crtc->active = true; |
89b667f8 | 5165 | |
a72e4c9f | 5166 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 5167 | |
89b667f8 JB |
5168 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5169 | if (encoder->pre_pll_enable) | |
5170 | encoder->pre_pll_enable(encoder); | |
5171 | ||
9d556c99 CML |
5172 | if (!is_dsi) { |
5173 | if (IS_CHERRYVIEW(dev)) | |
6e3c9717 | 5174 | chv_enable_pll(intel_crtc, intel_crtc->config); |
9d556c99 | 5175 | else |
6e3c9717 | 5176 | vlv_enable_pll(intel_crtc, intel_crtc->config); |
9d556c99 | 5177 | } |
89b667f8 JB |
5178 | |
5179 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
5180 | if (encoder->pre_enable) | |
5181 | encoder->pre_enable(encoder); | |
5182 | ||
2dd24552 JB |
5183 | i9xx_pfit_enable(intel_crtc); |
5184 | ||
63cbb074 VS |
5185 | intel_crtc_load_lut(crtc); |
5186 | ||
f37fcc2a | 5187 | intel_update_watermarks(crtc); |
e1fdc473 | 5188 | intel_enable_pipe(intel_crtc); |
be6a6f8e | 5189 | |
4b3a9526 VS |
5190 | assert_vblank_disabled(crtc); |
5191 | drm_crtc_vblank_on(crtc); | |
5192 | ||
f9b61ff6 DV |
5193 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5194 | encoder->enable(encoder); | |
5195 | ||
9ab0460b | 5196 | intel_crtc_enable_planes(crtc); |
d40d9187 | 5197 | |
56b80e1f | 5198 | /* Underruns don't raise interrupts, so check manually. */ |
a72e4c9f | 5199 | i9xx_check_fifo_underruns(dev_priv); |
89b667f8 JB |
5200 | } |
5201 | ||
f13c2ef3 DV |
5202 | static void i9xx_set_pll_dividers(struct intel_crtc *crtc) |
5203 | { | |
5204 | struct drm_device *dev = crtc->base.dev; | |
5205 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5206 | ||
6e3c9717 ACO |
5207 | I915_WRITE(FP0(crtc->pipe), crtc->config->dpll_hw_state.fp0); |
5208 | I915_WRITE(FP1(crtc->pipe), crtc->config->dpll_hw_state.fp1); | |
f13c2ef3 DV |
5209 | } |
5210 | ||
0b8765c6 | 5211 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
5212 | { |
5213 | struct drm_device *dev = crtc->dev; | |
a72e4c9f | 5214 | struct drm_i915_private *dev_priv = to_i915(dev); |
79e53945 | 5215 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
ef9c3aee | 5216 | struct intel_encoder *encoder; |
79e53945 | 5217 | int pipe = intel_crtc->pipe; |
79e53945 | 5218 | |
83d65738 | 5219 | WARN_ON(!crtc->state->enable); |
08a48469 | 5220 | |
f7abfe8b CW |
5221 | if (intel_crtc->active) |
5222 | return; | |
5223 | ||
f13c2ef3 DV |
5224 | i9xx_set_pll_dividers(intel_crtc); |
5225 | ||
6e3c9717 | 5226 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 5227 | intel_dp_set_m_n(intel_crtc, M1_N1); |
5b18e57c DV |
5228 | |
5229 | intel_set_pipe_timings(intel_crtc); | |
5230 | ||
5b18e57c DV |
5231 | i9xx_set_pipeconf(intel_crtc); |
5232 | ||
f7abfe8b | 5233 | intel_crtc->active = true; |
6b383a7f | 5234 | |
4a3436e8 | 5235 | if (!IS_GEN2(dev)) |
a72e4c9f | 5236 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 5237 | |
9d6d9f19 MK |
5238 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5239 | if (encoder->pre_enable) | |
5240 | encoder->pre_enable(encoder); | |
5241 | ||
f6736a1a DV |
5242 | i9xx_enable_pll(intel_crtc); |
5243 | ||
2dd24552 JB |
5244 | i9xx_pfit_enable(intel_crtc); |
5245 | ||
63cbb074 VS |
5246 | intel_crtc_load_lut(crtc); |
5247 | ||
f37fcc2a | 5248 | intel_update_watermarks(crtc); |
e1fdc473 | 5249 | intel_enable_pipe(intel_crtc); |
be6a6f8e | 5250 | |
4b3a9526 VS |
5251 | assert_vblank_disabled(crtc); |
5252 | drm_crtc_vblank_on(crtc); | |
5253 | ||
f9b61ff6 DV |
5254 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5255 | encoder->enable(encoder); | |
5256 | ||
9ab0460b | 5257 | intel_crtc_enable_planes(crtc); |
d40d9187 | 5258 | |
4a3436e8 VS |
5259 | /* |
5260 | * Gen2 reports pipe underruns whenever all planes are disabled. | |
5261 | * So don't enable underrun reporting before at least some planes | |
5262 | * are enabled. | |
5263 | * FIXME: Need to fix the logic to work when we turn off all planes | |
5264 | * but leave the pipe running. | |
5265 | */ | |
5266 | if (IS_GEN2(dev)) | |
a72e4c9f | 5267 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 5268 | |
56b80e1f | 5269 | /* Underruns don't raise interrupts, so check manually. */ |
a72e4c9f | 5270 | i9xx_check_fifo_underruns(dev_priv); |
0b8765c6 | 5271 | } |
79e53945 | 5272 | |
87476d63 DV |
5273 | static void i9xx_pfit_disable(struct intel_crtc *crtc) |
5274 | { | |
5275 | struct drm_device *dev = crtc->base.dev; | |
5276 | struct drm_i915_private *dev_priv = dev->dev_private; | |
87476d63 | 5277 | |
6e3c9717 | 5278 | if (!crtc->config->gmch_pfit.control) |
328d8e82 | 5279 | return; |
87476d63 | 5280 | |
328d8e82 | 5281 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87476d63 | 5282 | |
328d8e82 DV |
5283 | DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n", |
5284 | I915_READ(PFIT_CONTROL)); | |
5285 | I915_WRITE(PFIT_CONTROL, 0); | |
87476d63 DV |
5286 | } |
5287 | ||
0b8765c6 JB |
5288 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
5289 | { | |
5290 | struct drm_device *dev = crtc->dev; | |
5291 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5292 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 5293 | struct intel_encoder *encoder; |
0b8765c6 | 5294 | int pipe = intel_crtc->pipe; |
ef9c3aee | 5295 | |
f7abfe8b CW |
5296 | if (!intel_crtc->active) |
5297 | return; | |
5298 | ||
4a3436e8 VS |
5299 | /* |
5300 | * Gen2 reports pipe underruns whenever all planes are disabled. | |
5301 | * So diasble underrun reporting before all the planes get disabled. | |
5302 | * FIXME: Need to fix the logic to work when we turn off all planes | |
5303 | * but leave the pipe running. | |
5304 | */ | |
5305 | if (IS_GEN2(dev)) | |
a72e4c9f | 5306 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); |
4a3436e8 | 5307 | |
564ed191 ID |
5308 | /* |
5309 | * Vblank time updates from the shadow to live plane control register | |
5310 | * are blocked if the memory self-refresh mode is active at that | |
5311 | * moment. So to make sure the plane gets truly disabled, disable | |
5312 | * first the self-refresh mode. The self-refresh enable bit in turn | |
5313 | * will be checked/applied by the HW only at the next frame start | |
5314 | * event which is after the vblank start event, so we need to have a | |
5315 | * wait-for-vblank between disabling the plane and the pipe. | |
5316 | */ | |
5317 | intel_set_memory_cxsr(dev_priv, false); | |
9ab0460b VS |
5318 | intel_crtc_disable_planes(crtc); |
5319 | ||
6304cd91 VS |
5320 | /* |
5321 | * On gen2 planes are double buffered but the pipe isn't, so we must | |
5322 | * wait for planes to fully turn off before disabling the pipe. | |
564ed191 ID |
5323 | * We also need to wait on all gmch platforms because of the |
5324 | * self-refresh mode constraint explained above. | |
6304cd91 | 5325 | */ |
564ed191 | 5326 | intel_wait_for_vblank(dev, pipe); |
6304cd91 | 5327 | |
4b3a9526 VS |
5328 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5329 | encoder->disable(encoder); | |
5330 | ||
f9b61ff6 DV |
5331 | drm_crtc_vblank_off(crtc); |
5332 | assert_vblank_disabled(crtc); | |
5333 | ||
575f7ab7 | 5334 | intel_disable_pipe(intel_crtc); |
24a1f16d | 5335 | |
87476d63 | 5336 | i9xx_pfit_disable(intel_crtc); |
24a1f16d | 5337 | |
89b667f8 JB |
5338 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5339 | if (encoder->post_disable) | |
5340 | encoder->post_disable(encoder); | |
5341 | ||
409ee761 | 5342 | if (!intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DSI)) { |
076ed3b2 CML |
5343 | if (IS_CHERRYVIEW(dev)) |
5344 | chv_disable_pll(dev_priv, pipe); | |
5345 | else if (IS_VALLEYVIEW(dev)) | |
5346 | vlv_disable_pll(dev_priv, pipe); | |
5347 | else | |
1c4e0274 | 5348 | i9xx_disable_pll(intel_crtc); |
076ed3b2 | 5349 | } |
0b8765c6 | 5350 | |
4a3436e8 | 5351 | if (!IS_GEN2(dev)) |
a72e4c9f | 5352 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); |
4a3436e8 | 5353 | |
f7abfe8b | 5354 | intel_crtc->active = false; |
46ba614c | 5355 | intel_update_watermarks(crtc); |
f37fcc2a | 5356 | |
efa9624e | 5357 | mutex_lock(&dev->struct_mutex); |
7ff0ebcc | 5358 | intel_fbc_update(dev); |
efa9624e | 5359 | mutex_unlock(&dev->struct_mutex); |
0b8765c6 JB |
5360 | } |
5361 | ||
ee7b9f93 JB |
5362 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
5363 | { | |
5364 | } | |
5365 | ||
b04c5bd6 BF |
5366 | /* Master function to enable/disable CRTC and corresponding power wells */ |
5367 | void intel_crtc_control(struct drm_crtc *crtc, bool enable) | |
976f8a20 DV |
5368 | { |
5369 | struct drm_device *dev = crtc->dev; | |
5370 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0e572fe7 | 5371 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
0e572fe7 DV |
5372 | enum intel_display_power_domain domain; |
5373 | unsigned long domains; | |
976f8a20 | 5374 | |
0e572fe7 DV |
5375 | if (enable) { |
5376 | if (!intel_crtc->active) { | |
e1e9fb84 DV |
5377 | domains = get_crtc_power_domains(crtc); |
5378 | for_each_power_domain(domain, domains) | |
5379 | intel_display_power_get(dev_priv, domain); | |
5380 | intel_crtc->enabled_power_domains = domains; | |
0e572fe7 DV |
5381 | |
5382 | dev_priv->display.crtc_enable(crtc); | |
5383 | } | |
5384 | } else { | |
5385 | if (intel_crtc->active) { | |
5386 | dev_priv->display.crtc_disable(crtc); | |
5387 | ||
e1e9fb84 DV |
5388 | domains = intel_crtc->enabled_power_domains; |
5389 | for_each_power_domain(domain, domains) | |
5390 | intel_display_power_put(dev_priv, domain); | |
5391 | intel_crtc->enabled_power_domains = 0; | |
0e572fe7 DV |
5392 | } |
5393 | } | |
b04c5bd6 BF |
5394 | } |
5395 | ||
5396 | /** | |
5397 | * Sets the power management mode of the pipe and plane. | |
5398 | */ | |
5399 | void intel_crtc_update_dpms(struct drm_crtc *crtc) | |
5400 | { | |
5401 | struct drm_device *dev = crtc->dev; | |
5402 | struct intel_encoder *intel_encoder; | |
5403 | bool enable = false; | |
5404 | ||
5405 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) | |
5406 | enable |= intel_encoder->connectors_active; | |
5407 | ||
5408 | intel_crtc_control(crtc, enable); | |
976f8a20 DV |
5409 | } |
5410 | ||
cdd59983 CW |
5411 | static void intel_crtc_disable(struct drm_crtc *crtc) |
5412 | { | |
cdd59983 | 5413 | struct drm_device *dev = crtc->dev; |
976f8a20 | 5414 | struct drm_connector *connector; |
ee7b9f93 | 5415 | struct drm_i915_private *dev_priv = dev->dev_private; |
cdd59983 | 5416 | |
976f8a20 | 5417 | /* crtc should still be enabled when we disable it. */ |
83d65738 | 5418 | WARN_ON(!crtc->state->enable); |
976f8a20 DV |
5419 | |
5420 | dev_priv->display.crtc_disable(crtc); | |
ee7b9f93 JB |
5421 | dev_priv->display.off(crtc); |
5422 | ||
455a6808 | 5423 | crtc->primary->funcs->disable_plane(crtc->primary); |
976f8a20 DV |
5424 | |
5425 | /* Update computed state. */ | |
5426 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
5427 | if (!connector->encoder || !connector->encoder->crtc) | |
5428 | continue; | |
5429 | ||
5430 | if (connector->encoder->crtc != crtc) | |
5431 | continue; | |
5432 | ||
5433 | connector->dpms = DRM_MODE_DPMS_OFF; | |
5434 | to_intel_encoder(connector->encoder)->connectors_active = false; | |
cdd59983 CW |
5435 | } |
5436 | } | |
5437 | ||
ea5b213a | 5438 | void intel_encoder_destroy(struct drm_encoder *encoder) |
7e7d76c3 | 5439 | { |
4ef69c7a | 5440 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 5441 | |
ea5b213a CW |
5442 | drm_encoder_cleanup(encoder); |
5443 | kfree(intel_encoder); | |
7e7d76c3 JB |
5444 | } |
5445 | ||
9237329d | 5446 | /* Simple dpms helper for encoders with just one connector, no cloning and only |
5ab432ef DV |
5447 | * one kind of off state. It clamps all !ON modes to fully OFF and changes the |
5448 | * state of the entire output pipe. */ | |
9237329d | 5449 | static void intel_encoder_dpms(struct intel_encoder *encoder, int mode) |
7e7d76c3 | 5450 | { |
5ab432ef DV |
5451 | if (mode == DRM_MODE_DPMS_ON) { |
5452 | encoder->connectors_active = true; | |
5453 | ||
b2cabb0e | 5454 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef DV |
5455 | } else { |
5456 | encoder->connectors_active = false; | |
5457 | ||
b2cabb0e | 5458 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef | 5459 | } |
79e53945 JB |
5460 | } |
5461 | ||
0a91ca29 DV |
5462 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
5463 | * internal consistency). */ | |
b980514c | 5464 | static void intel_connector_check_state(struct intel_connector *connector) |
79e53945 | 5465 | { |
0a91ca29 DV |
5466 | if (connector->get_hw_state(connector)) { |
5467 | struct intel_encoder *encoder = connector->encoder; | |
5468 | struct drm_crtc *crtc; | |
5469 | bool encoder_enabled; | |
5470 | enum pipe pipe; | |
5471 | ||
5472 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
5473 | connector->base.base.id, | |
c23cc417 | 5474 | connector->base.name); |
0a91ca29 | 5475 | |
0e32b39c DA |
5476 | /* there is no real hw state for MST connectors */ |
5477 | if (connector->mst_port) | |
5478 | return; | |
5479 | ||
e2c719b7 | 5480 | I915_STATE_WARN(connector->base.dpms == DRM_MODE_DPMS_OFF, |
0a91ca29 | 5481 | "wrong connector dpms state\n"); |
e2c719b7 | 5482 | I915_STATE_WARN(connector->base.encoder != &encoder->base, |
0a91ca29 | 5483 | "active connector not linked to encoder\n"); |
0a91ca29 | 5484 | |
36cd7444 | 5485 | if (encoder) { |
e2c719b7 | 5486 | I915_STATE_WARN(!encoder->connectors_active, |
36cd7444 DA |
5487 | "encoder->connectors_active not set\n"); |
5488 | ||
5489 | encoder_enabled = encoder->get_hw_state(encoder, &pipe); | |
e2c719b7 RC |
5490 | I915_STATE_WARN(!encoder_enabled, "encoder not enabled\n"); |
5491 | if (I915_STATE_WARN_ON(!encoder->base.crtc)) | |
36cd7444 | 5492 | return; |
0a91ca29 | 5493 | |
36cd7444 | 5494 | crtc = encoder->base.crtc; |
0a91ca29 | 5495 | |
83d65738 MR |
5496 | I915_STATE_WARN(!crtc->state->enable, |
5497 | "crtc not enabled\n"); | |
e2c719b7 RC |
5498 | I915_STATE_WARN(!to_intel_crtc(crtc)->active, "crtc not active\n"); |
5499 | I915_STATE_WARN(pipe != to_intel_crtc(crtc)->pipe, | |
36cd7444 DA |
5500 | "encoder active on the wrong pipe\n"); |
5501 | } | |
0a91ca29 | 5502 | } |
79e53945 JB |
5503 | } |
5504 | ||
5ab432ef DV |
5505 | /* Even simpler default implementation, if there's really no special case to |
5506 | * consider. */ | |
5507 | void intel_connector_dpms(struct drm_connector *connector, int mode) | |
79e53945 | 5508 | { |
5ab432ef DV |
5509 | /* All the simple cases only support two dpms states. */ |
5510 | if (mode != DRM_MODE_DPMS_ON) | |
5511 | mode = DRM_MODE_DPMS_OFF; | |
d4270e57 | 5512 | |
5ab432ef DV |
5513 | if (mode == connector->dpms) |
5514 | return; | |
5515 | ||
5516 | connector->dpms = mode; | |
5517 | ||
5518 | /* Only need to change hw state when actually enabled */ | |
c9976dcf CW |
5519 | if (connector->encoder) |
5520 | intel_encoder_dpms(to_intel_encoder(connector->encoder), mode); | |
0a91ca29 | 5521 | |
b980514c | 5522 | intel_modeset_check_state(connector->dev); |
79e53945 JB |
5523 | } |
5524 | ||
f0947c37 DV |
5525 | /* Simple connector->get_hw_state implementation for encoders that support only |
5526 | * one connector and no cloning and hence the encoder state determines the state | |
5527 | * of the connector. */ | |
5528 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
ea5b213a | 5529 | { |
24929352 | 5530 | enum pipe pipe = 0; |
f0947c37 | 5531 | struct intel_encoder *encoder = connector->encoder; |
ea5b213a | 5532 | |
f0947c37 | 5533 | return encoder->get_hw_state(encoder, &pipe); |
ea5b213a CW |
5534 | } |
5535 | ||
d272ddfa VS |
5536 | static int pipe_required_fdi_lanes(struct drm_device *dev, enum pipe pipe) |
5537 | { | |
5538 | struct intel_crtc *crtc = | |
5539 | to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe)); | |
5540 | ||
5541 | if (crtc->base.state->enable && | |
5542 | crtc->config->has_pch_encoder) | |
5543 | return crtc->config->fdi_lanes; | |
5544 | ||
5545 | return 0; | |
5546 | } | |
5547 | ||
1857e1da | 5548 | static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe, |
5cec258b | 5549 | struct intel_crtc_state *pipe_config) |
1857e1da | 5550 | { |
1857e1da DV |
5551 | DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n", |
5552 | pipe_name(pipe), pipe_config->fdi_lanes); | |
5553 | if (pipe_config->fdi_lanes > 4) { | |
5554 | DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n", | |
5555 | pipe_name(pipe), pipe_config->fdi_lanes); | |
5556 | return false; | |
5557 | } | |
5558 | ||
bafb6553 | 5559 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
1857e1da DV |
5560 | if (pipe_config->fdi_lanes > 2) { |
5561 | DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n", | |
5562 | pipe_config->fdi_lanes); | |
5563 | return false; | |
5564 | } else { | |
5565 | return true; | |
5566 | } | |
5567 | } | |
5568 | ||
5569 | if (INTEL_INFO(dev)->num_pipes == 2) | |
5570 | return true; | |
5571 | ||
5572 | /* Ivybridge 3 pipe is really complicated */ | |
5573 | switch (pipe) { | |
5574 | case PIPE_A: | |
5575 | return true; | |
5576 | case PIPE_B: | |
d272ddfa VS |
5577 | if (pipe_config->fdi_lanes > 2 && |
5578 | pipe_required_fdi_lanes(dev, PIPE_C) > 0) { | |
1857e1da DV |
5579 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n", |
5580 | pipe_name(pipe), pipe_config->fdi_lanes); | |
5581 | return false; | |
5582 | } | |
5583 | return true; | |
5584 | case PIPE_C: | |
251cc67c VS |
5585 | if (pipe_config->fdi_lanes > 2) { |
5586 | DRM_DEBUG_KMS("only 2 lanes on pipe %c: required %i lanes\n", | |
5587 | pipe_name(pipe), pipe_config->fdi_lanes); | |
5588 | return false; | |
5589 | } | |
d272ddfa | 5590 | if (pipe_required_fdi_lanes(dev, PIPE_B) > 2) { |
1857e1da DV |
5591 | DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n"); |
5592 | return false; | |
5593 | } | |
5594 | return true; | |
5595 | default: | |
5596 | BUG(); | |
5597 | } | |
5598 | } | |
5599 | ||
e29c22c0 DV |
5600 | #define RETRY 1 |
5601 | static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc, | |
5cec258b | 5602 | struct intel_crtc_state *pipe_config) |
877d48d5 | 5603 | { |
1857e1da | 5604 | struct drm_device *dev = intel_crtc->base.dev; |
2d112de7 | 5605 | struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
ff9a6750 | 5606 | int lane, link_bw, fdi_dotclock; |
e29c22c0 | 5607 | bool setup_ok, needs_recompute = false; |
877d48d5 | 5608 | |
e29c22c0 | 5609 | retry: |
877d48d5 DV |
5610 | /* FDI is a binary signal running at ~2.7GHz, encoding |
5611 | * each output octet as 10 bits. The actual frequency | |
5612 | * is stored as a divider into a 100MHz clock, and the | |
5613 | * mode pixel clock is stored in units of 1KHz. | |
5614 | * Hence the bw of each lane in terms of the mode signal | |
5615 | * is: | |
5616 | */ | |
5617 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
5618 | ||
241bfc38 | 5619 | fdi_dotclock = adjusted_mode->crtc_clock; |
877d48d5 | 5620 | |
2bd89a07 | 5621 | lane = ironlake_get_lanes_required(fdi_dotclock, link_bw, |
877d48d5 DV |
5622 | pipe_config->pipe_bpp); |
5623 | ||
5624 | pipe_config->fdi_lanes = lane; | |
5625 | ||
2bd89a07 | 5626 | intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock, |
877d48d5 | 5627 | link_bw, &pipe_config->fdi_m_n); |
1857e1da | 5628 | |
e29c22c0 DV |
5629 | setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev, |
5630 | intel_crtc->pipe, pipe_config); | |
5631 | if (!setup_ok && pipe_config->pipe_bpp > 6*3) { | |
5632 | pipe_config->pipe_bpp -= 2*3; | |
5633 | DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n", | |
5634 | pipe_config->pipe_bpp); | |
5635 | needs_recompute = true; | |
5636 | pipe_config->bw_constrained = true; | |
5637 | ||
5638 | goto retry; | |
5639 | } | |
5640 | ||
5641 | if (needs_recompute) | |
5642 | return RETRY; | |
5643 | ||
5644 | return setup_ok ? 0 : -EINVAL; | |
877d48d5 DV |
5645 | } |
5646 | ||
42db64ef | 5647 | static void hsw_compute_ips_config(struct intel_crtc *crtc, |
5cec258b | 5648 | struct intel_crtc_state *pipe_config) |
42db64ef | 5649 | { |
d330a953 | 5650 | pipe_config->ips_enabled = i915.enable_ips && |
3c4ca58c | 5651 | hsw_crtc_supports_ips(crtc) && |
b6dfdc9b | 5652 | pipe_config->pipe_bpp <= 24; |
42db64ef PZ |
5653 | } |
5654 | ||
a43f6e0f | 5655 | static int intel_crtc_compute_config(struct intel_crtc *crtc, |
5cec258b | 5656 | struct intel_crtc_state *pipe_config) |
79e53945 | 5657 | { |
a43f6e0f | 5658 | struct drm_device *dev = crtc->base.dev; |
8bd31e67 | 5659 | struct drm_i915_private *dev_priv = dev->dev_private; |
2d112de7 | 5660 | struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
89749350 | 5661 | |
ad3a4479 | 5662 | /* FIXME should check pixel clock limits on all platforms */ |
cf532bb2 | 5663 | if (INTEL_INFO(dev)->gen < 4) { |
cf532bb2 VS |
5664 | int clock_limit = |
5665 | dev_priv->display.get_display_clock_speed(dev); | |
5666 | ||
5667 | /* | |
5668 | * Enable pixel doubling when the dot clock | |
5669 | * is > 90% of the (display) core speed. | |
5670 | * | |
b397c96b VS |
5671 | * GDG double wide on either pipe, |
5672 | * otherwise pipe A only. | |
cf532bb2 | 5673 | */ |
b397c96b | 5674 | if ((crtc->pipe == PIPE_A || IS_I915G(dev)) && |
241bfc38 | 5675 | adjusted_mode->crtc_clock > clock_limit * 9 / 10) { |
ad3a4479 | 5676 | clock_limit *= 2; |
cf532bb2 | 5677 | pipe_config->double_wide = true; |
ad3a4479 VS |
5678 | } |
5679 | ||
241bfc38 | 5680 | if (adjusted_mode->crtc_clock > clock_limit * 9 / 10) |
e29c22c0 | 5681 | return -EINVAL; |
2c07245f | 5682 | } |
89749350 | 5683 | |
1d1d0e27 VS |
5684 | /* |
5685 | * Pipe horizontal size must be even in: | |
5686 | * - DVO ganged mode | |
5687 | * - LVDS dual channel mode | |
5688 | * - Double wide pipe | |
5689 | */ | |
b4f2bf4c | 5690 | if ((intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS) && |
1d1d0e27 VS |
5691 | intel_is_dual_link_lvds(dev)) || pipe_config->double_wide) |
5692 | pipe_config->pipe_src_w &= ~1; | |
5693 | ||
8693a824 DL |
5694 | /* Cantiga+ cannot handle modes with a hsync front porch of 0. |
5695 | * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw. | |
44f46b42 CW |
5696 | */ |
5697 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && | |
5698 | adjusted_mode->hsync_start == adjusted_mode->hdisplay) | |
e29c22c0 | 5699 | return -EINVAL; |
44f46b42 | 5700 | |
bd080ee5 | 5701 | if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) { |
5d2d38dd | 5702 | pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */ |
bd080ee5 | 5703 | } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) { |
5d2d38dd DV |
5704 | /* only a 8bpc pipe, with 6bpc dither through the panel fitter |
5705 | * for lvds. */ | |
5706 | pipe_config->pipe_bpp = 8*3; | |
5707 | } | |
5708 | ||
f5adf94e | 5709 | if (HAS_IPS(dev)) |
a43f6e0f DV |
5710 | hsw_compute_ips_config(crtc, pipe_config); |
5711 | ||
877d48d5 | 5712 | if (pipe_config->has_pch_encoder) |
a43f6e0f | 5713 | return ironlake_fdi_compute_config(crtc, pipe_config); |
877d48d5 | 5714 | |
e29c22c0 | 5715 | return 0; |
79e53945 JB |
5716 | } |
5717 | ||
25eb05fc JB |
5718 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
5719 | { | |
d197b7d3 | 5720 | struct drm_i915_private *dev_priv = dev->dev_private; |
d197b7d3 VS |
5721 | u32 val; |
5722 | int divider; | |
5723 | ||
6bcda4f0 VS |
5724 | if (dev_priv->hpll_freq == 0) |
5725 | dev_priv->hpll_freq = valleyview_get_vco(dev_priv); | |
5726 | ||
d197b7d3 VS |
5727 | mutex_lock(&dev_priv->dpio_lock); |
5728 | val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL); | |
5729 | mutex_unlock(&dev_priv->dpio_lock); | |
5730 | ||
5731 | divider = val & DISPLAY_FREQUENCY_VALUES; | |
5732 | ||
7d007f40 VS |
5733 | WARN((val & DISPLAY_FREQUENCY_STATUS) != |
5734 | (divider << DISPLAY_FREQUENCY_STATUS_SHIFT), | |
5735 | "cdclk change in progress\n"); | |
5736 | ||
6bcda4f0 | 5737 | return DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, divider + 1); |
25eb05fc JB |
5738 | } |
5739 | ||
e70236a8 JB |
5740 | static int i945_get_display_clock_speed(struct drm_device *dev) |
5741 | { | |
5742 | return 400000; | |
5743 | } | |
79e53945 | 5744 | |
e70236a8 | 5745 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 5746 | { |
e70236a8 JB |
5747 | return 333000; |
5748 | } | |
79e53945 | 5749 | |
e70236a8 JB |
5750 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
5751 | { | |
5752 | return 200000; | |
5753 | } | |
79e53945 | 5754 | |
257a7ffc DV |
5755 | static int pnv_get_display_clock_speed(struct drm_device *dev) |
5756 | { | |
5757 | u16 gcfgc = 0; | |
5758 | ||
5759 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); | |
5760 | ||
5761 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
5762 | case GC_DISPLAY_CLOCK_267_MHZ_PNV: | |
5763 | return 267000; | |
5764 | case GC_DISPLAY_CLOCK_333_MHZ_PNV: | |
5765 | return 333000; | |
5766 | case GC_DISPLAY_CLOCK_444_MHZ_PNV: | |
5767 | return 444000; | |
5768 | case GC_DISPLAY_CLOCK_200_MHZ_PNV: | |
5769 | return 200000; | |
5770 | default: | |
5771 | DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc); | |
5772 | case GC_DISPLAY_CLOCK_133_MHZ_PNV: | |
5773 | return 133000; | |
5774 | case GC_DISPLAY_CLOCK_167_MHZ_PNV: | |
5775 | return 167000; | |
5776 | } | |
5777 | } | |
5778 | ||
e70236a8 JB |
5779 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
5780 | { | |
5781 | u16 gcfgc = 0; | |
79e53945 | 5782 | |
e70236a8 JB |
5783 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
5784 | ||
5785 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
5786 | return 133000; | |
5787 | else { | |
5788 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
5789 | case GC_DISPLAY_CLOCK_333_MHZ: | |
5790 | return 333000; | |
5791 | default: | |
5792 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
5793 | return 190000; | |
79e53945 | 5794 | } |
e70236a8 JB |
5795 | } |
5796 | } | |
5797 | ||
5798 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
5799 | { | |
5800 | return 266000; | |
5801 | } | |
5802 | ||
5803 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
5804 | { | |
5805 | u16 hpllcc = 0; | |
5806 | /* Assume that the hardware is in the high speed state. This | |
5807 | * should be the default. | |
5808 | */ | |
5809 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
5810 | case GC_CLOCK_133_200: | |
5811 | case GC_CLOCK_100_200: | |
5812 | return 200000; | |
5813 | case GC_CLOCK_166_250: | |
5814 | return 250000; | |
5815 | case GC_CLOCK_100_133: | |
79e53945 | 5816 | return 133000; |
e70236a8 | 5817 | } |
79e53945 | 5818 | |
e70236a8 JB |
5819 | /* Shouldn't happen */ |
5820 | return 0; | |
5821 | } | |
79e53945 | 5822 | |
e70236a8 JB |
5823 | static int i830_get_display_clock_speed(struct drm_device *dev) |
5824 | { | |
5825 | return 133000; | |
79e53945 JB |
5826 | } |
5827 | ||
2c07245f | 5828 | static void |
a65851af | 5829 | intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den) |
2c07245f | 5830 | { |
a65851af VS |
5831 | while (*num > DATA_LINK_M_N_MASK || |
5832 | *den > DATA_LINK_M_N_MASK) { | |
2c07245f ZW |
5833 | *num >>= 1; |
5834 | *den >>= 1; | |
5835 | } | |
5836 | } | |
5837 | ||
a65851af VS |
5838 | static void compute_m_n(unsigned int m, unsigned int n, |
5839 | uint32_t *ret_m, uint32_t *ret_n) | |
5840 | { | |
5841 | *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX); | |
5842 | *ret_m = div_u64((uint64_t) m * *ret_n, n); | |
5843 | intel_reduce_m_n_ratio(ret_m, ret_n); | |
5844 | } | |
5845 | ||
e69d0bc1 DV |
5846 | void |
5847 | intel_link_compute_m_n(int bits_per_pixel, int nlanes, | |
5848 | int pixel_clock, int link_clock, | |
5849 | struct intel_link_m_n *m_n) | |
2c07245f | 5850 | { |
e69d0bc1 | 5851 | m_n->tu = 64; |
a65851af VS |
5852 | |
5853 | compute_m_n(bits_per_pixel * pixel_clock, | |
5854 | link_clock * nlanes * 8, | |
5855 | &m_n->gmch_m, &m_n->gmch_n); | |
5856 | ||
5857 | compute_m_n(pixel_clock, link_clock, | |
5858 | &m_n->link_m, &m_n->link_n); | |
2c07245f ZW |
5859 | } |
5860 | ||
a7615030 CW |
5861 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
5862 | { | |
d330a953 JN |
5863 | if (i915.panel_use_ssc >= 0) |
5864 | return i915.panel_use_ssc != 0; | |
41aa3448 | 5865 | return dev_priv->vbt.lvds_use_ssc |
435793df | 5866 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
5867 | } |
5868 | ||
409ee761 | 5869 | static int i9xx_get_refclk(struct intel_crtc *crtc, int num_connectors) |
c65d77d8 | 5870 | { |
409ee761 | 5871 | struct drm_device *dev = crtc->base.dev; |
c65d77d8 JB |
5872 | struct drm_i915_private *dev_priv = dev->dev_private; |
5873 | int refclk; | |
5874 | ||
a0c4da24 | 5875 | if (IS_VALLEYVIEW(dev)) { |
9a0ea498 | 5876 | refclk = 100000; |
d0737e1d | 5877 | } else if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS) && |
c65d77d8 | 5878 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
e91e941b VS |
5879 | refclk = dev_priv->vbt.lvds_ssc_freq; |
5880 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk); | |
c65d77d8 JB |
5881 | } else if (!IS_GEN2(dev)) { |
5882 | refclk = 96000; | |
5883 | } else { | |
5884 | refclk = 48000; | |
5885 | } | |
5886 | ||
5887 | return refclk; | |
5888 | } | |
5889 | ||
7429e9d4 | 5890 | static uint32_t pnv_dpll_compute_fp(struct dpll *dpll) |
c65d77d8 | 5891 | { |
7df00d7a | 5892 | return (1 << dpll->n) << 16 | dpll->m2; |
7429e9d4 | 5893 | } |
f47709a9 | 5894 | |
7429e9d4 DV |
5895 | static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll) |
5896 | { | |
5897 | return dpll->n << 16 | dpll->m1 << 8 | dpll->m2; | |
c65d77d8 JB |
5898 | } |
5899 | ||
f47709a9 | 5900 | static void i9xx_update_pll_dividers(struct intel_crtc *crtc, |
190f68c5 | 5901 | struct intel_crtc_state *crtc_state, |
a7516a05 JB |
5902 | intel_clock_t *reduced_clock) |
5903 | { | |
f47709a9 | 5904 | struct drm_device *dev = crtc->base.dev; |
a7516a05 JB |
5905 | u32 fp, fp2 = 0; |
5906 | ||
5907 | if (IS_PINEVIEW(dev)) { | |
190f68c5 | 5908 | fp = pnv_dpll_compute_fp(&crtc_state->dpll); |
a7516a05 | 5909 | if (reduced_clock) |
7429e9d4 | 5910 | fp2 = pnv_dpll_compute_fp(reduced_clock); |
a7516a05 | 5911 | } else { |
190f68c5 | 5912 | fp = i9xx_dpll_compute_fp(&crtc_state->dpll); |
a7516a05 | 5913 | if (reduced_clock) |
7429e9d4 | 5914 | fp2 = i9xx_dpll_compute_fp(reduced_clock); |
a7516a05 JB |
5915 | } |
5916 | ||
190f68c5 | 5917 | crtc_state->dpll_hw_state.fp0 = fp; |
a7516a05 | 5918 | |
f47709a9 | 5919 | crtc->lowfreq_avail = false; |
e1f234bd | 5920 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS) && |
d330a953 | 5921 | reduced_clock && i915.powersave) { |
190f68c5 | 5922 | crtc_state->dpll_hw_state.fp1 = fp2; |
f47709a9 | 5923 | crtc->lowfreq_avail = true; |
a7516a05 | 5924 | } else { |
190f68c5 | 5925 | crtc_state->dpll_hw_state.fp1 = fp; |
a7516a05 JB |
5926 | } |
5927 | } | |
5928 | ||
5e69f97f CML |
5929 | static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe |
5930 | pipe) | |
89b667f8 JB |
5931 | { |
5932 | u32 reg_val; | |
5933 | ||
5934 | /* | |
5935 | * PLLB opamp always calibrates to max value of 0x3f, force enable it | |
5936 | * and set it to a reasonable value instead. | |
5937 | */ | |
ab3c759a | 5938 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1)); |
89b667f8 JB |
5939 | reg_val &= 0xffffff00; |
5940 | reg_val |= 0x00000030; | |
ab3c759a | 5941 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); |
89b667f8 | 5942 | |
ab3c759a | 5943 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); |
89b667f8 JB |
5944 | reg_val &= 0x8cffffff; |
5945 | reg_val = 0x8c000000; | |
ab3c759a | 5946 | vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); |
89b667f8 | 5947 | |
ab3c759a | 5948 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1)); |
89b667f8 | 5949 | reg_val &= 0xffffff00; |
ab3c759a | 5950 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); |
89b667f8 | 5951 | |
ab3c759a | 5952 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); |
89b667f8 JB |
5953 | reg_val &= 0x00ffffff; |
5954 | reg_val |= 0xb0000000; | |
ab3c759a | 5955 | vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); |
89b667f8 JB |
5956 | } |
5957 | ||
b551842d DV |
5958 | static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc, |
5959 | struct intel_link_m_n *m_n) | |
5960 | { | |
5961 | struct drm_device *dev = crtc->base.dev; | |
5962 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5963 | int pipe = crtc->pipe; | |
5964 | ||
e3b95f1e DV |
5965 | I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
5966 | I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n); | |
5967 | I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m); | |
5968 | I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n); | |
b551842d DV |
5969 | } |
5970 | ||
5971 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, | |
f769cd24 VK |
5972 | struct intel_link_m_n *m_n, |
5973 | struct intel_link_m_n *m2_n2) | |
b551842d DV |
5974 | { |
5975 | struct drm_device *dev = crtc->base.dev; | |
5976 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5977 | int pipe = crtc->pipe; | |
6e3c9717 | 5978 | enum transcoder transcoder = crtc->config->cpu_transcoder; |
b551842d DV |
5979 | |
5980 | if (INTEL_INFO(dev)->gen >= 5) { | |
5981 | I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m); | |
5982 | I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n); | |
5983 | I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m); | |
5984 | I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n); | |
f769cd24 VK |
5985 | /* M2_N2 registers to be set only for gen < 8 (M2_N2 available |
5986 | * for gen < 8) and if DRRS is supported (to make sure the | |
5987 | * registers are not unnecessarily accessed). | |
5988 | */ | |
44395bfe | 5989 | if (m2_n2 && (IS_CHERRYVIEW(dev) || INTEL_INFO(dev)->gen < 8) && |
6e3c9717 | 5990 | crtc->config->has_drrs) { |
f769cd24 VK |
5991 | I915_WRITE(PIPE_DATA_M2(transcoder), |
5992 | TU_SIZE(m2_n2->tu) | m2_n2->gmch_m); | |
5993 | I915_WRITE(PIPE_DATA_N2(transcoder), m2_n2->gmch_n); | |
5994 | I915_WRITE(PIPE_LINK_M2(transcoder), m2_n2->link_m); | |
5995 | I915_WRITE(PIPE_LINK_N2(transcoder), m2_n2->link_n); | |
5996 | } | |
b551842d | 5997 | } else { |
e3b95f1e DV |
5998 | I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
5999 | I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n); | |
6000 | I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m); | |
6001 | I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n); | |
b551842d DV |
6002 | } |
6003 | } | |
6004 | ||
fe3cd48d | 6005 | void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n) |
03afc4a2 | 6006 | { |
fe3cd48d R |
6007 | struct intel_link_m_n *dp_m_n, *dp_m2_n2 = NULL; |
6008 | ||
6009 | if (m_n == M1_N1) { | |
6010 | dp_m_n = &crtc->config->dp_m_n; | |
6011 | dp_m2_n2 = &crtc->config->dp_m2_n2; | |
6012 | } else if (m_n == M2_N2) { | |
6013 | ||
6014 | /* | |
6015 | * M2_N2 registers are not supported. Hence m2_n2 divider value | |
6016 | * needs to be programmed into M1_N1. | |
6017 | */ | |
6018 | dp_m_n = &crtc->config->dp_m2_n2; | |
6019 | } else { | |
6020 | DRM_ERROR("Unsupported divider value\n"); | |
6021 | return; | |
6022 | } | |
6023 | ||
6e3c9717 ACO |
6024 | if (crtc->config->has_pch_encoder) |
6025 | intel_pch_transcoder_set_m_n(crtc, &crtc->config->dp_m_n); | |
03afc4a2 | 6026 | else |
fe3cd48d | 6027 | intel_cpu_transcoder_set_m_n(crtc, dp_m_n, dp_m2_n2); |
03afc4a2 DV |
6028 | } |
6029 | ||
d288f65f | 6030 | static void vlv_update_pll(struct intel_crtc *crtc, |
5cec258b | 6031 | struct intel_crtc_state *pipe_config) |
bdd4b6a6 DV |
6032 | { |
6033 | u32 dpll, dpll_md; | |
6034 | ||
6035 | /* | |
6036 | * Enable DPIO clock input. We should never disable the reference | |
6037 | * clock for pipe B, since VGA hotplug / manual detection depends | |
6038 | * on it. | |
6039 | */ | |
6040 | dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV | | |
6041 | DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV; | |
6042 | /* We should never disable this, set it here for state tracking */ | |
6043 | if (crtc->pipe == PIPE_B) | |
6044 | dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
6045 | dpll |= DPLL_VCO_ENABLE; | |
d288f65f | 6046 | pipe_config->dpll_hw_state.dpll = dpll; |
bdd4b6a6 | 6047 | |
d288f65f | 6048 | dpll_md = (pipe_config->pixel_multiplier - 1) |
bdd4b6a6 | 6049 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
d288f65f | 6050 | pipe_config->dpll_hw_state.dpll_md = dpll_md; |
bdd4b6a6 DV |
6051 | } |
6052 | ||
d288f65f | 6053 | static void vlv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 6054 | const struct intel_crtc_state *pipe_config) |
a0c4da24 | 6055 | { |
f47709a9 | 6056 | struct drm_device *dev = crtc->base.dev; |
a0c4da24 | 6057 | struct drm_i915_private *dev_priv = dev->dev_private; |
f47709a9 | 6058 | int pipe = crtc->pipe; |
bdd4b6a6 | 6059 | u32 mdiv; |
a0c4da24 | 6060 | u32 bestn, bestm1, bestm2, bestp1, bestp2; |
bdd4b6a6 | 6061 | u32 coreclk, reg_val; |
a0c4da24 | 6062 | |
09153000 DV |
6063 | mutex_lock(&dev_priv->dpio_lock); |
6064 | ||
d288f65f VS |
6065 | bestn = pipe_config->dpll.n; |
6066 | bestm1 = pipe_config->dpll.m1; | |
6067 | bestm2 = pipe_config->dpll.m2; | |
6068 | bestp1 = pipe_config->dpll.p1; | |
6069 | bestp2 = pipe_config->dpll.p2; | |
a0c4da24 | 6070 | |
89b667f8 JB |
6071 | /* See eDP HDMI DPIO driver vbios notes doc */ |
6072 | ||
6073 | /* PLL B needs special handling */ | |
bdd4b6a6 | 6074 | if (pipe == PIPE_B) |
5e69f97f | 6075 | vlv_pllb_recal_opamp(dev_priv, pipe); |
89b667f8 JB |
6076 | |
6077 | /* Set up Tx target for periodic Rcomp update */ | |
ab3c759a | 6078 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f); |
89b667f8 JB |
6079 | |
6080 | /* Disable target IRef on PLL */ | |
ab3c759a | 6081 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe)); |
89b667f8 | 6082 | reg_val &= 0x00ffffff; |
ab3c759a | 6083 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val); |
89b667f8 JB |
6084 | |
6085 | /* Disable fast lock */ | |
ab3c759a | 6086 | vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610); |
89b667f8 JB |
6087 | |
6088 | /* Set idtafcrecal before PLL is enabled */ | |
a0c4da24 JB |
6089 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); |
6090 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
6091 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
a0c4da24 | 6092 | mdiv |= (1 << DPIO_K_SHIFT); |
7df5080b JB |
6093 | |
6094 | /* | |
6095 | * Post divider depends on pixel clock rate, DAC vs digital (and LVDS, | |
6096 | * but we don't support that). | |
6097 | * Note: don't use the DAC post divider as it seems unstable. | |
6098 | */ | |
6099 | mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT); | |
ab3c759a | 6100 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv); |
a0c4da24 | 6101 | |
a0c4da24 | 6102 | mdiv |= DPIO_ENABLE_CALIBRATION; |
ab3c759a | 6103 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv); |
a0c4da24 | 6104 | |
89b667f8 | 6105 | /* Set HBR and RBR LPF coefficients */ |
d288f65f | 6106 | if (pipe_config->port_clock == 162000 || |
409ee761 ACO |
6107 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG) || |
6108 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
ab3c759a | 6109 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe), |
885b0120 | 6110 | 0x009f0003); |
89b667f8 | 6111 | else |
ab3c759a | 6112 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe), |
89b667f8 JB |
6113 | 0x00d0000f); |
6114 | ||
681a8504 | 6115 | if (pipe_config->has_dp_encoder) { |
89b667f8 | 6116 | /* Use SSC source */ |
bdd4b6a6 | 6117 | if (pipe == PIPE_A) |
ab3c759a | 6118 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
6119 | 0x0df40000); |
6120 | else | |
ab3c759a | 6121 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
6122 | 0x0df70000); |
6123 | } else { /* HDMI or VGA */ | |
6124 | /* Use bend source */ | |
bdd4b6a6 | 6125 | if (pipe == PIPE_A) |
ab3c759a | 6126 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
6127 | 0x0df70000); |
6128 | else | |
ab3c759a | 6129 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
6130 | 0x0df40000); |
6131 | } | |
a0c4da24 | 6132 | |
ab3c759a | 6133 | coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe)); |
89b667f8 | 6134 | coreclk = (coreclk & 0x0000ff00) | 0x01c00000; |
409ee761 ACO |
6135 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
6136 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) | |
89b667f8 | 6137 | coreclk |= 0x01000000; |
ab3c759a | 6138 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk); |
a0c4da24 | 6139 | |
ab3c759a | 6140 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000); |
09153000 | 6141 | mutex_unlock(&dev_priv->dpio_lock); |
a0c4da24 JB |
6142 | } |
6143 | ||
d288f65f | 6144 | static void chv_update_pll(struct intel_crtc *crtc, |
5cec258b | 6145 | struct intel_crtc_state *pipe_config) |
1ae0d137 | 6146 | { |
d288f65f | 6147 | pipe_config->dpll_hw_state.dpll = DPLL_SSC_REF_CLOCK_CHV | |
1ae0d137 VS |
6148 | DPLL_REFA_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS | |
6149 | DPLL_VCO_ENABLE; | |
6150 | if (crtc->pipe != PIPE_A) | |
d288f65f | 6151 | pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; |
1ae0d137 | 6152 | |
d288f65f VS |
6153 | pipe_config->dpll_hw_state.dpll_md = |
6154 | (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
1ae0d137 VS |
6155 | } |
6156 | ||
d288f65f | 6157 | static void chv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 6158 | const struct intel_crtc_state *pipe_config) |
9d556c99 CML |
6159 | { |
6160 | struct drm_device *dev = crtc->base.dev; | |
6161 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6162 | int pipe = crtc->pipe; | |
6163 | int dpll_reg = DPLL(crtc->pipe); | |
6164 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
9cbe40c1 | 6165 | u32 loopfilter, tribuf_calcntr; |
9d556c99 | 6166 | u32 bestn, bestm1, bestm2, bestp1, bestp2, bestm2_frac; |
a945ce7e | 6167 | u32 dpio_val; |
9cbe40c1 | 6168 | int vco; |
9d556c99 | 6169 | |
d288f65f VS |
6170 | bestn = pipe_config->dpll.n; |
6171 | bestm2_frac = pipe_config->dpll.m2 & 0x3fffff; | |
6172 | bestm1 = pipe_config->dpll.m1; | |
6173 | bestm2 = pipe_config->dpll.m2 >> 22; | |
6174 | bestp1 = pipe_config->dpll.p1; | |
6175 | bestp2 = pipe_config->dpll.p2; | |
9cbe40c1 | 6176 | vco = pipe_config->dpll.vco; |
a945ce7e | 6177 | dpio_val = 0; |
9cbe40c1 | 6178 | loopfilter = 0; |
9d556c99 CML |
6179 | |
6180 | /* | |
6181 | * Enable Refclk and SSC | |
6182 | */ | |
a11b0703 | 6183 | I915_WRITE(dpll_reg, |
d288f65f | 6184 | pipe_config->dpll_hw_state.dpll & ~DPLL_VCO_ENABLE); |
a11b0703 VS |
6185 | |
6186 | mutex_lock(&dev_priv->dpio_lock); | |
9d556c99 | 6187 | |
9d556c99 CML |
6188 | /* p1 and p2 divider */ |
6189 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW13(port), | |
6190 | 5 << DPIO_CHV_S1_DIV_SHIFT | | |
6191 | bestp1 << DPIO_CHV_P1_DIV_SHIFT | | |
6192 | bestp2 << DPIO_CHV_P2_DIV_SHIFT | | |
6193 | 1 << DPIO_CHV_K_DIV_SHIFT); | |
6194 | ||
6195 | /* Feedback post-divider - m2 */ | |
6196 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW0(port), bestm2); | |
6197 | ||
6198 | /* Feedback refclk divider - n and m1 */ | |
6199 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW1(port), | |
6200 | DPIO_CHV_M1_DIV_BY_2 | | |
6201 | 1 << DPIO_CHV_N_DIV_SHIFT); | |
6202 | ||
6203 | /* M2 fraction division */ | |
a945ce7e VP |
6204 | if (bestm2_frac) |
6205 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW2(port), bestm2_frac); | |
9d556c99 CML |
6206 | |
6207 | /* M2 fraction division enable */ | |
a945ce7e VP |
6208 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port)); |
6209 | dpio_val &= ~(DPIO_CHV_FEEDFWD_GAIN_MASK | DPIO_CHV_FRAC_DIV_EN); | |
6210 | dpio_val |= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT); | |
6211 | if (bestm2_frac) | |
6212 | dpio_val |= DPIO_CHV_FRAC_DIV_EN; | |
6213 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW3(port), dpio_val); | |
9d556c99 | 6214 | |
de3a0fde VP |
6215 | /* Program digital lock detect threshold */ |
6216 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW9(port)); | |
6217 | dpio_val &= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK | | |
6218 | DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE); | |
6219 | dpio_val |= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT); | |
6220 | if (!bestm2_frac) | |
6221 | dpio_val |= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE; | |
6222 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW9(port), dpio_val); | |
6223 | ||
9d556c99 | 6224 | /* Loop filter */ |
9cbe40c1 VP |
6225 | if (vco == 5400000) { |
6226 | loopfilter |= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT); | |
6227 | loopfilter |= (0x8 << DPIO_CHV_INT_COEFF_SHIFT); | |
6228 | loopfilter |= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
6229 | tribuf_calcntr = 0x9; | |
6230 | } else if (vco <= 6200000) { | |
6231 | loopfilter |= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT); | |
6232 | loopfilter |= (0xB << DPIO_CHV_INT_COEFF_SHIFT); | |
6233 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
6234 | tribuf_calcntr = 0x9; | |
6235 | } else if (vco <= 6480000) { | |
6236 | loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT); | |
6237 | loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT); | |
6238 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
6239 | tribuf_calcntr = 0x8; | |
6240 | } else { | |
6241 | /* Not supported. Apply the same limits as in the max case */ | |
6242 | loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT); | |
6243 | loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT); | |
6244 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
6245 | tribuf_calcntr = 0; | |
6246 | } | |
9d556c99 CML |
6247 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW6(port), loopfilter); |
6248 | ||
968040b2 | 6249 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW8(port)); |
9cbe40c1 VP |
6250 | dpio_val &= ~DPIO_CHV_TDC_TARGET_CNT_MASK; |
6251 | dpio_val |= (tribuf_calcntr << DPIO_CHV_TDC_TARGET_CNT_SHIFT); | |
6252 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW8(port), dpio_val); | |
6253 | ||
9d556c99 CML |
6254 | /* AFC Recal */ |
6255 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), | |
6256 | vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)) | | |
6257 | DPIO_AFC_RECAL); | |
6258 | ||
6259 | mutex_unlock(&dev_priv->dpio_lock); | |
6260 | } | |
6261 | ||
d288f65f VS |
6262 | /** |
6263 | * vlv_force_pll_on - forcibly enable just the PLL | |
6264 | * @dev_priv: i915 private structure | |
6265 | * @pipe: pipe PLL to enable | |
6266 | * @dpll: PLL configuration | |
6267 | * | |
6268 | * Enable the PLL for @pipe using the supplied @dpll config. To be used | |
6269 | * in cases where we need the PLL enabled even when @pipe is not going to | |
6270 | * be enabled. | |
6271 | */ | |
6272 | void vlv_force_pll_on(struct drm_device *dev, enum pipe pipe, | |
6273 | const struct dpll *dpll) | |
6274 | { | |
6275 | struct intel_crtc *crtc = | |
6276 | to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe)); | |
5cec258b | 6277 | struct intel_crtc_state pipe_config = { |
d288f65f VS |
6278 | .pixel_multiplier = 1, |
6279 | .dpll = *dpll, | |
6280 | }; | |
6281 | ||
6282 | if (IS_CHERRYVIEW(dev)) { | |
6283 | chv_update_pll(crtc, &pipe_config); | |
6284 | chv_prepare_pll(crtc, &pipe_config); | |
6285 | chv_enable_pll(crtc, &pipe_config); | |
6286 | } else { | |
6287 | vlv_update_pll(crtc, &pipe_config); | |
6288 | vlv_prepare_pll(crtc, &pipe_config); | |
6289 | vlv_enable_pll(crtc, &pipe_config); | |
6290 | } | |
6291 | } | |
6292 | ||
6293 | /** | |
6294 | * vlv_force_pll_off - forcibly disable just the PLL | |
6295 | * @dev_priv: i915 private structure | |
6296 | * @pipe: pipe PLL to disable | |
6297 | * | |
6298 | * Disable the PLL for @pipe. To be used in cases where we need | |
6299 | * the PLL enabled even when @pipe is not going to be enabled. | |
6300 | */ | |
6301 | void vlv_force_pll_off(struct drm_device *dev, enum pipe pipe) | |
6302 | { | |
6303 | if (IS_CHERRYVIEW(dev)) | |
6304 | chv_disable_pll(to_i915(dev), pipe); | |
6305 | else | |
6306 | vlv_disable_pll(to_i915(dev), pipe); | |
6307 | } | |
6308 | ||
f47709a9 | 6309 | static void i9xx_update_pll(struct intel_crtc *crtc, |
190f68c5 | 6310 | struct intel_crtc_state *crtc_state, |
f47709a9 | 6311 | intel_clock_t *reduced_clock, |
eb1cbe48 DV |
6312 | int num_connectors) |
6313 | { | |
f47709a9 | 6314 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 6315 | struct drm_i915_private *dev_priv = dev->dev_private; |
eb1cbe48 DV |
6316 | u32 dpll; |
6317 | bool is_sdvo; | |
190f68c5 | 6318 | struct dpll *clock = &crtc_state->dpll; |
eb1cbe48 | 6319 | |
190f68c5 | 6320 | i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock); |
2a8f64ca | 6321 | |
d0737e1d ACO |
6322 | is_sdvo = intel_pipe_will_have_type(crtc, INTEL_OUTPUT_SDVO) || |
6323 | intel_pipe_will_have_type(crtc, INTEL_OUTPUT_HDMI); | |
eb1cbe48 DV |
6324 | |
6325 | dpll = DPLL_VGA_MODE_DIS; | |
6326 | ||
d0737e1d | 6327 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS)) |
eb1cbe48 DV |
6328 | dpll |= DPLLB_MODE_LVDS; |
6329 | else | |
6330 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
6cc5f341 | 6331 | |
ef1b460d | 6332 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
190f68c5 | 6333 | dpll |= (crtc_state->pixel_multiplier - 1) |
198a037f | 6334 | << SDVO_MULTIPLIER_SHIFT_HIRES; |
eb1cbe48 | 6335 | } |
198a037f DV |
6336 | |
6337 | if (is_sdvo) | |
4a33e48d | 6338 | dpll |= DPLL_SDVO_HIGH_SPEED; |
198a037f | 6339 | |
190f68c5 | 6340 | if (crtc_state->has_dp_encoder) |
4a33e48d | 6341 | dpll |= DPLL_SDVO_HIGH_SPEED; |
eb1cbe48 DV |
6342 | |
6343 | /* compute bitmask from p1 value */ | |
6344 | if (IS_PINEVIEW(dev)) | |
6345 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
6346 | else { | |
6347 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
6348 | if (IS_G4X(dev) && reduced_clock) | |
6349 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
6350 | } | |
6351 | switch (clock->p2) { | |
6352 | case 5: | |
6353 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
6354 | break; | |
6355 | case 7: | |
6356 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
6357 | break; | |
6358 | case 10: | |
6359 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
6360 | break; | |
6361 | case 14: | |
6362 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
6363 | break; | |
6364 | } | |
6365 | if (INTEL_INFO(dev)->gen >= 4) | |
6366 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
6367 | ||
190f68c5 | 6368 | if (crtc_state->sdvo_tv_clock) |
eb1cbe48 | 6369 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
d0737e1d | 6370 | else if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
6371 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
6372 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
6373 | else | |
6374 | dpll |= PLL_REF_INPUT_DREFCLK; | |
6375 | ||
6376 | dpll |= DPLL_VCO_ENABLE; | |
190f68c5 | 6377 | crtc_state->dpll_hw_state.dpll = dpll; |
8bcc2795 | 6378 | |
eb1cbe48 | 6379 | if (INTEL_INFO(dev)->gen >= 4) { |
190f68c5 | 6380 | u32 dpll_md = (crtc_state->pixel_multiplier - 1) |
ef1b460d | 6381 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
190f68c5 | 6382 | crtc_state->dpll_hw_state.dpll_md = dpll_md; |
eb1cbe48 DV |
6383 | } |
6384 | } | |
6385 | ||
f47709a9 | 6386 | static void i8xx_update_pll(struct intel_crtc *crtc, |
190f68c5 | 6387 | struct intel_crtc_state *crtc_state, |
f47709a9 | 6388 | intel_clock_t *reduced_clock, |
eb1cbe48 DV |
6389 | int num_connectors) |
6390 | { | |
f47709a9 | 6391 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 6392 | struct drm_i915_private *dev_priv = dev->dev_private; |
eb1cbe48 | 6393 | u32 dpll; |
190f68c5 | 6394 | struct dpll *clock = &crtc_state->dpll; |
eb1cbe48 | 6395 | |
190f68c5 | 6396 | i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock); |
2a8f64ca | 6397 | |
eb1cbe48 DV |
6398 | dpll = DPLL_VGA_MODE_DIS; |
6399 | ||
d0737e1d | 6400 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS)) { |
eb1cbe48 DV |
6401 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
6402 | } else { | |
6403 | if (clock->p1 == 2) | |
6404 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
6405 | else | |
6406 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
6407 | if (clock->p2 == 4) | |
6408 | dpll |= PLL_P2_DIVIDE_BY_4; | |
6409 | } | |
6410 | ||
d0737e1d | 6411 | if (!IS_I830(dev) && intel_pipe_will_have_type(crtc, INTEL_OUTPUT_DVO)) |
4a33e48d DV |
6412 | dpll |= DPLL_DVO_2X_MODE; |
6413 | ||
d0737e1d | 6414 | if (intel_pipe_will_have_type(crtc, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
6415 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
6416 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
6417 | else | |
6418 | dpll |= PLL_REF_INPUT_DREFCLK; | |
6419 | ||
6420 | dpll |= DPLL_VCO_ENABLE; | |
190f68c5 | 6421 | crtc_state->dpll_hw_state.dpll = dpll; |
eb1cbe48 DV |
6422 | } |
6423 | ||
8a654f3b | 6424 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc) |
b0e77b9c PZ |
6425 | { |
6426 | struct drm_device *dev = intel_crtc->base.dev; | |
6427 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6428 | enum pipe pipe = intel_crtc->pipe; | |
6e3c9717 | 6429 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
8a654f3b | 6430 | struct drm_display_mode *adjusted_mode = |
6e3c9717 | 6431 | &intel_crtc->config->base.adjusted_mode; |
1caea6e9 VS |
6432 | uint32_t crtc_vtotal, crtc_vblank_end; |
6433 | int vsyncshift = 0; | |
4d8a62ea DV |
6434 | |
6435 | /* We need to be careful not to changed the adjusted mode, for otherwise | |
6436 | * the hw state checker will get angry at the mismatch. */ | |
6437 | crtc_vtotal = adjusted_mode->crtc_vtotal; | |
6438 | crtc_vblank_end = adjusted_mode->crtc_vblank_end; | |
b0e77b9c | 6439 | |
609aeaca | 6440 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
b0e77b9c | 6441 | /* the chip adds 2 halflines automatically */ |
4d8a62ea DV |
6442 | crtc_vtotal -= 1; |
6443 | crtc_vblank_end -= 1; | |
609aeaca | 6444 | |
409ee761 | 6445 | if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
609aeaca VS |
6446 | vsyncshift = (adjusted_mode->crtc_htotal - 1) / 2; |
6447 | else | |
6448 | vsyncshift = adjusted_mode->crtc_hsync_start - | |
6449 | adjusted_mode->crtc_htotal / 2; | |
1caea6e9 VS |
6450 | if (vsyncshift < 0) |
6451 | vsyncshift += adjusted_mode->crtc_htotal; | |
b0e77b9c PZ |
6452 | } |
6453 | ||
6454 | if (INTEL_INFO(dev)->gen > 3) | |
fe2b8f9d | 6455 | I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift); |
b0e77b9c | 6456 | |
fe2b8f9d | 6457 | I915_WRITE(HTOTAL(cpu_transcoder), |
b0e77b9c PZ |
6458 | (adjusted_mode->crtc_hdisplay - 1) | |
6459 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
fe2b8f9d | 6460 | I915_WRITE(HBLANK(cpu_transcoder), |
b0e77b9c PZ |
6461 | (adjusted_mode->crtc_hblank_start - 1) | |
6462 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
fe2b8f9d | 6463 | I915_WRITE(HSYNC(cpu_transcoder), |
b0e77b9c PZ |
6464 | (adjusted_mode->crtc_hsync_start - 1) | |
6465 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
6466 | ||
fe2b8f9d | 6467 | I915_WRITE(VTOTAL(cpu_transcoder), |
b0e77b9c | 6468 | (adjusted_mode->crtc_vdisplay - 1) | |
4d8a62ea | 6469 | ((crtc_vtotal - 1) << 16)); |
fe2b8f9d | 6470 | I915_WRITE(VBLANK(cpu_transcoder), |
b0e77b9c | 6471 | (adjusted_mode->crtc_vblank_start - 1) | |
4d8a62ea | 6472 | ((crtc_vblank_end - 1) << 16)); |
fe2b8f9d | 6473 | I915_WRITE(VSYNC(cpu_transcoder), |
b0e77b9c PZ |
6474 | (adjusted_mode->crtc_vsync_start - 1) | |
6475 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
6476 | ||
b5e508d4 PZ |
6477 | /* Workaround: when the EDP input selection is B, the VTOTAL_B must be |
6478 | * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is | |
6479 | * documented on the DDI_FUNC_CTL register description, EDP Input Select | |
6480 | * bits. */ | |
6481 | if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP && | |
6482 | (pipe == PIPE_B || pipe == PIPE_C)) | |
6483 | I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder))); | |
6484 | ||
b0e77b9c PZ |
6485 | /* pipesrc controls the size that is scaled from, which should |
6486 | * always be the user's requested size. | |
6487 | */ | |
6488 | I915_WRITE(PIPESRC(pipe), | |
6e3c9717 ACO |
6489 | ((intel_crtc->config->pipe_src_w - 1) << 16) | |
6490 | (intel_crtc->config->pipe_src_h - 1)); | |
b0e77b9c PZ |
6491 | } |
6492 | ||
1bd1bd80 | 6493 | static void intel_get_pipe_timings(struct intel_crtc *crtc, |
5cec258b | 6494 | struct intel_crtc_state *pipe_config) |
1bd1bd80 DV |
6495 | { |
6496 | struct drm_device *dev = crtc->base.dev; | |
6497 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6498 | enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; | |
6499 | uint32_t tmp; | |
6500 | ||
6501 | tmp = I915_READ(HTOTAL(cpu_transcoder)); | |
2d112de7 ACO |
6502 | pipe_config->base.adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1; |
6503 | pipe_config->base.adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 6504 | tmp = I915_READ(HBLANK(cpu_transcoder)); |
2d112de7 ACO |
6505 | pipe_config->base.adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1; |
6506 | pipe_config->base.adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 6507 | tmp = I915_READ(HSYNC(cpu_transcoder)); |
2d112de7 ACO |
6508 | pipe_config->base.adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1; |
6509 | pipe_config->base.adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 DV |
6510 | |
6511 | tmp = I915_READ(VTOTAL(cpu_transcoder)); | |
2d112de7 ACO |
6512 | pipe_config->base.adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1; |
6513 | pipe_config->base.adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 6514 | tmp = I915_READ(VBLANK(cpu_transcoder)); |
2d112de7 ACO |
6515 | pipe_config->base.adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1; |
6516 | pipe_config->base.adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 6517 | tmp = I915_READ(VSYNC(cpu_transcoder)); |
2d112de7 ACO |
6518 | pipe_config->base.adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1; |
6519 | pipe_config->base.adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 DV |
6520 | |
6521 | if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) { | |
2d112de7 ACO |
6522 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE; |
6523 | pipe_config->base.adjusted_mode.crtc_vtotal += 1; | |
6524 | pipe_config->base.adjusted_mode.crtc_vblank_end += 1; | |
1bd1bd80 DV |
6525 | } |
6526 | ||
6527 | tmp = I915_READ(PIPESRC(crtc->pipe)); | |
37327abd VS |
6528 | pipe_config->pipe_src_h = (tmp & 0xffff) + 1; |
6529 | pipe_config->pipe_src_w = ((tmp >> 16) & 0xffff) + 1; | |
6530 | ||
2d112de7 ACO |
6531 | pipe_config->base.mode.vdisplay = pipe_config->pipe_src_h; |
6532 | pipe_config->base.mode.hdisplay = pipe_config->pipe_src_w; | |
1bd1bd80 DV |
6533 | } |
6534 | ||
f6a83288 | 6535 | void intel_mode_from_pipe_config(struct drm_display_mode *mode, |
5cec258b | 6536 | struct intel_crtc_state *pipe_config) |
babea61d | 6537 | { |
2d112de7 ACO |
6538 | mode->hdisplay = pipe_config->base.adjusted_mode.crtc_hdisplay; |
6539 | mode->htotal = pipe_config->base.adjusted_mode.crtc_htotal; | |
6540 | mode->hsync_start = pipe_config->base.adjusted_mode.crtc_hsync_start; | |
6541 | mode->hsync_end = pipe_config->base.adjusted_mode.crtc_hsync_end; | |
babea61d | 6542 | |
2d112de7 ACO |
6543 | mode->vdisplay = pipe_config->base.adjusted_mode.crtc_vdisplay; |
6544 | mode->vtotal = pipe_config->base.adjusted_mode.crtc_vtotal; | |
6545 | mode->vsync_start = pipe_config->base.adjusted_mode.crtc_vsync_start; | |
6546 | mode->vsync_end = pipe_config->base.adjusted_mode.crtc_vsync_end; | |
babea61d | 6547 | |
2d112de7 | 6548 | mode->flags = pipe_config->base.adjusted_mode.flags; |
babea61d | 6549 | |
2d112de7 ACO |
6550 | mode->clock = pipe_config->base.adjusted_mode.crtc_clock; |
6551 | mode->flags |= pipe_config->base.adjusted_mode.flags; | |
babea61d JB |
6552 | } |
6553 | ||
84b046f3 DV |
6554 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc) |
6555 | { | |
6556 | struct drm_device *dev = intel_crtc->base.dev; | |
6557 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6558 | uint32_t pipeconf; | |
6559 | ||
9f11a9e4 | 6560 | pipeconf = 0; |
84b046f3 | 6561 | |
b6b5d049 VS |
6562 | if ((intel_crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
6563 | (intel_crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
6564 | pipeconf |= I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE; | |
67c72a12 | 6565 | |
6e3c9717 | 6566 | if (intel_crtc->config->double_wide) |
cf532bb2 | 6567 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
84b046f3 | 6568 | |
ff9ce46e DV |
6569 | /* only g4x and later have fancy bpc/dither controls */ |
6570 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) { | |
ff9ce46e | 6571 | /* Bspec claims that we can't use dithering for 30bpp pipes. */ |
6e3c9717 | 6572 | if (intel_crtc->config->dither && intel_crtc->config->pipe_bpp != 30) |
ff9ce46e | 6573 | pipeconf |= PIPECONF_DITHER_EN | |
84b046f3 | 6574 | PIPECONF_DITHER_TYPE_SP; |
84b046f3 | 6575 | |
6e3c9717 | 6576 | switch (intel_crtc->config->pipe_bpp) { |
ff9ce46e DV |
6577 | case 18: |
6578 | pipeconf |= PIPECONF_6BPC; | |
6579 | break; | |
6580 | case 24: | |
6581 | pipeconf |= PIPECONF_8BPC; | |
6582 | break; | |
6583 | case 30: | |
6584 | pipeconf |= PIPECONF_10BPC; | |
6585 | break; | |
6586 | default: | |
6587 | /* Case prevented by intel_choose_pipe_bpp_dither. */ | |
6588 | BUG(); | |
84b046f3 DV |
6589 | } |
6590 | } | |
6591 | ||
6592 | if (HAS_PIPE_CXSR(dev)) { | |
6593 | if (intel_crtc->lowfreq_avail) { | |
6594 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); | |
6595 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; | |
6596 | } else { | |
6597 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); | |
84b046f3 DV |
6598 | } |
6599 | } | |
6600 | ||
6e3c9717 | 6601 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) { |
efc2cfff | 6602 | if (INTEL_INFO(dev)->gen < 4 || |
409ee761 | 6603 | intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
efc2cfff VS |
6604 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
6605 | else | |
6606 | pipeconf |= PIPECONF_INTERLACE_W_SYNC_SHIFT; | |
6607 | } else | |
84b046f3 DV |
6608 | pipeconf |= PIPECONF_PROGRESSIVE; |
6609 | ||
6e3c9717 | 6610 | if (IS_VALLEYVIEW(dev) && intel_crtc->config->limited_color_range) |
9f11a9e4 | 6611 | pipeconf |= PIPECONF_COLOR_RANGE_SELECT; |
9c8e09b7 | 6612 | |
84b046f3 DV |
6613 | I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf); |
6614 | POSTING_READ(PIPECONF(intel_crtc->pipe)); | |
6615 | } | |
6616 | ||
190f68c5 ACO |
6617 | static int i9xx_crtc_compute_clock(struct intel_crtc *crtc, |
6618 | struct intel_crtc_state *crtc_state) | |
79e53945 | 6619 | { |
c7653199 | 6620 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 6621 | struct drm_i915_private *dev_priv = dev->dev_private; |
c751ce4f | 6622 | int refclk, num_connectors = 0; |
652c393a | 6623 | intel_clock_t clock, reduced_clock; |
a16af721 | 6624 | bool ok, has_reduced_clock = false; |
e9fd1c02 | 6625 | bool is_lvds = false, is_dsi = false; |
5eddb70b | 6626 | struct intel_encoder *encoder; |
d4906093 | 6627 | const intel_limit_t *limit; |
79e53945 | 6628 | |
d0737e1d ACO |
6629 | for_each_intel_encoder(dev, encoder) { |
6630 | if (encoder->new_crtc != crtc) | |
6631 | continue; | |
6632 | ||
5eddb70b | 6633 | switch (encoder->type) { |
79e53945 JB |
6634 | case INTEL_OUTPUT_LVDS: |
6635 | is_lvds = true; | |
6636 | break; | |
e9fd1c02 JN |
6637 | case INTEL_OUTPUT_DSI: |
6638 | is_dsi = true; | |
6639 | break; | |
6847d71b PZ |
6640 | default: |
6641 | break; | |
79e53945 | 6642 | } |
43565a06 | 6643 | |
c751ce4f | 6644 | num_connectors++; |
79e53945 JB |
6645 | } |
6646 | ||
f2335330 | 6647 | if (is_dsi) |
5b18e57c | 6648 | return 0; |
f2335330 | 6649 | |
190f68c5 | 6650 | if (!crtc_state->clock_set) { |
409ee761 | 6651 | refclk = i9xx_get_refclk(crtc, num_connectors); |
79e53945 | 6652 | |
e9fd1c02 JN |
6653 | /* |
6654 | * Returns a set of divisors for the desired target clock with | |
6655 | * the given refclk, or FALSE. The returned values represent | |
6656 | * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + | |
6657 | * 2) / p1 / p2. | |
6658 | */ | |
409ee761 | 6659 | limit = intel_limit(crtc, refclk); |
c7653199 | 6660 | ok = dev_priv->display.find_dpll(limit, crtc, |
190f68c5 | 6661 | crtc_state->port_clock, |
e9fd1c02 | 6662 | refclk, NULL, &clock); |
f2335330 | 6663 | if (!ok) { |
e9fd1c02 JN |
6664 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
6665 | return -EINVAL; | |
6666 | } | |
79e53945 | 6667 | |
f2335330 JN |
6668 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
6669 | /* | |
6670 | * Ensure we match the reduced clock's P to the target | |
6671 | * clock. If the clocks don't match, we can't switch | |
6672 | * the display clock by using the FP0/FP1. In such case | |
6673 | * we will disable the LVDS downclock feature. | |
6674 | */ | |
6675 | has_reduced_clock = | |
c7653199 | 6676 | dev_priv->display.find_dpll(limit, crtc, |
f2335330 JN |
6677 | dev_priv->lvds_downclock, |
6678 | refclk, &clock, | |
6679 | &reduced_clock); | |
6680 | } | |
6681 | /* Compat-code for transition, will disappear. */ | |
190f68c5 ACO |
6682 | crtc_state->dpll.n = clock.n; |
6683 | crtc_state->dpll.m1 = clock.m1; | |
6684 | crtc_state->dpll.m2 = clock.m2; | |
6685 | crtc_state->dpll.p1 = clock.p1; | |
6686 | crtc_state->dpll.p2 = clock.p2; | |
f47709a9 | 6687 | } |
7026d4ac | 6688 | |
e9fd1c02 | 6689 | if (IS_GEN2(dev)) { |
190f68c5 | 6690 | i8xx_update_pll(crtc, crtc_state, |
2a8f64ca VP |
6691 | has_reduced_clock ? &reduced_clock : NULL, |
6692 | num_connectors); | |
9d556c99 | 6693 | } else if (IS_CHERRYVIEW(dev)) { |
190f68c5 | 6694 | chv_update_pll(crtc, crtc_state); |
e9fd1c02 | 6695 | } else if (IS_VALLEYVIEW(dev)) { |
190f68c5 | 6696 | vlv_update_pll(crtc, crtc_state); |
e9fd1c02 | 6697 | } else { |
190f68c5 | 6698 | i9xx_update_pll(crtc, crtc_state, |
eb1cbe48 | 6699 | has_reduced_clock ? &reduced_clock : NULL, |
eba905b2 | 6700 | num_connectors); |
e9fd1c02 | 6701 | } |
79e53945 | 6702 | |
c8f7a0db | 6703 | return 0; |
f564048e EA |
6704 | } |
6705 | ||
2fa2fe9a | 6706 | static void i9xx_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 6707 | struct intel_crtc_state *pipe_config) |
2fa2fe9a DV |
6708 | { |
6709 | struct drm_device *dev = crtc->base.dev; | |
6710 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6711 | uint32_t tmp; | |
6712 | ||
dc9e7dec VS |
6713 | if (INTEL_INFO(dev)->gen <= 3 && (IS_I830(dev) || !IS_MOBILE(dev))) |
6714 | return; | |
6715 | ||
2fa2fe9a | 6716 | tmp = I915_READ(PFIT_CONTROL); |
06922821 DV |
6717 | if (!(tmp & PFIT_ENABLE)) |
6718 | return; | |
2fa2fe9a | 6719 | |
06922821 | 6720 | /* Check whether the pfit is attached to our pipe. */ |
2fa2fe9a DV |
6721 | if (INTEL_INFO(dev)->gen < 4) { |
6722 | if (crtc->pipe != PIPE_B) | |
6723 | return; | |
2fa2fe9a DV |
6724 | } else { |
6725 | if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT)) | |
6726 | return; | |
6727 | } | |
6728 | ||
06922821 | 6729 | pipe_config->gmch_pfit.control = tmp; |
2fa2fe9a DV |
6730 | pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS); |
6731 | if (INTEL_INFO(dev)->gen < 5) | |
6732 | pipe_config->gmch_pfit.lvds_border_bits = | |
6733 | I915_READ(LVDS) & LVDS_BORDER_ENABLE; | |
6734 | } | |
6735 | ||
acbec814 | 6736 | static void vlv_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 6737 | struct intel_crtc_state *pipe_config) |
acbec814 JB |
6738 | { |
6739 | struct drm_device *dev = crtc->base.dev; | |
6740 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6741 | int pipe = pipe_config->cpu_transcoder; | |
6742 | intel_clock_t clock; | |
6743 | u32 mdiv; | |
662c6ecb | 6744 | int refclk = 100000; |
acbec814 | 6745 | |
f573de5a SK |
6746 | /* In case of MIPI DPLL will not even be used */ |
6747 | if (!(pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE)) | |
6748 | return; | |
6749 | ||
acbec814 | 6750 | mutex_lock(&dev_priv->dpio_lock); |
ab3c759a | 6751 | mdiv = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW3(pipe)); |
acbec814 JB |
6752 | mutex_unlock(&dev_priv->dpio_lock); |
6753 | ||
6754 | clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7; | |
6755 | clock.m2 = mdiv & DPIO_M2DIV_MASK; | |
6756 | clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf; | |
6757 | clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7; | |
6758 | clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f; | |
6759 | ||
f646628b | 6760 | vlv_clock(refclk, &clock); |
acbec814 | 6761 | |
f646628b VS |
6762 | /* clock.dot is the fast clock */ |
6763 | pipe_config->port_clock = clock.dot / 5; | |
acbec814 JB |
6764 | } |
6765 | ||
5724dbd1 DL |
6766 | static void |
6767 | i9xx_get_initial_plane_config(struct intel_crtc *crtc, | |
6768 | struct intel_initial_plane_config *plane_config) | |
1ad292b5 JB |
6769 | { |
6770 | struct drm_device *dev = crtc->base.dev; | |
6771 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6772 | u32 val, base, offset; | |
6773 | int pipe = crtc->pipe, plane = crtc->plane; | |
6774 | int fourcc, pixel_format; | |
6775 | int aligned_height; | |
b113d5ee | 6776 | struct drm_framebuffer *fb; |
1b842c89 | 6777 | struct intel_framebuffer *intel_fb; |
1ad292b5 | 6778 | |
42a7b088 DL |
6779 | val = I915_READ(DSPCNTR(plane)); |
6780 | if (!(val & DISPLAY_PLANE_ENABLE)) | |
6781 | return; | |
6782 | ||
d9806c9f | 6783 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 6784 | if (!intel_fb) { |
1ad292b5 JB |
6785 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
6786 | return; | |
6787 | } | |
6788 | ||
1b842c89 DL |
6789 | fb = &intel_fb->base; |
6790 | ||
18c5247e DV |
6791 | if (INTEL_INFO(dev)->gen >= 4) { |
6792 | if (val & DISPPLANE_TILED) { | |
49af449b | 6793 | plane_config->tiling = I915_TILING_X; |
18c5247e DV |
6794 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; |
6795 | } | |
6796 | } | |
1ad292b5 JB |
6797 | |
6798 | pixel_format = val & DISPPLANE_PIXFORMAT_MASK; | |
b35d63fa | 6799 | fourcc = i9xx_format_to_fourcc(pixel_format); |
b113d5ee DL |
6800 | fb->pixel_format = fourcc; |
6801 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
1ad292b5 JB |
6802 | |
6803 | if (INTEL_INFO(dev)->gen >= 4) { | |
49af449b | 6804 | if (plane_config->tiling) |
1ad292b5 JB |
6805 | offset = I915_READ(DSPTILEOFF(plane)); |
6806 | else | |
6807 | offset = I915_READ(DSPLINOFF(plane)); | |
6808 | base = I915_READ(DSPSURF(plane)) & 0xfffff000; | |
6809 | } else { | |
6810 | base = I915_READ(DSPADDR(plane)); | |
6811 | } | |
6812 | plane_config->base = base; | |
6813 | ||
6814 | val = I915_READ(PIPESRC(pipe)); | |
b113d5ee DL |
6815 | fb->width = ((val >> 16) & 0xfff) + 1; |
6816 | fb->height = ((val >> 0) & 0xfff) + 1; | |
1ad292b5 JB |
6817 | |
6818 | val = I915_READ(DSPSTRIDE(pipe)); | |
b113d5ee | 6819 | fb->pitches[0] = val & 0xffffffc0; |
1ad292b5 | 6820 | |
b113d5ee | 6821 | aligned_height = intel_fb_align_height(dev, fb->height, |
091df6cb DV |
6822 | fb->pixel_format, |
6823 | fb->modifier[0]); | |
1ad292b5 | 6824 | |
f37b5c2b | 6825 | plane_config->size = fb->pitches[0] * aligned_height; |
1ad292b5 | 6826 | |
2844a921 DL |
6827 | DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", |
6828 | pipe_name(pipe), plane, fb->width, fb->height, | |
6829 | fb->bits_per_pixel, base, fb->pitches[0], | |
6830 | plane_config->size); | |
1ad292b5 | 6831 | |
2d14030b | 6832 | plane_config->fb = intel_fb; |
1ad292b5 JB |
6833 | } |
6834 | ||
70b23a98 | 6835 | static void chv_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 6836 | struct intel_crtc_state *pipe_config) |
70b23a98 VS |
6837 | { |
6838 | struct drm_device *dev = crtc->base.dev; | |
6839 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6840 | int pipe = pipe_config->cpu_transcoder; | |
6841 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
6842 | intel_clock_t clock; | |
6843 | u32 cmn_dw13, pll_dw0, pll_dw1, pll_dw2; | |
6844 | int refclk = 100000; | |
6845 | ||
6846 | mutex_lock(&dev_priv->dpio_lock); | |
6847 | cmn_dw13 = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW13(port)); | |
6848 | pll_dw0 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW0(port)); | |
6849 | pll_dw1 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW1(port)); | |
6850 | pll_dw2 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW2(port)); | |
6851 | mutex_unlock(&dev_priv->dpio_lock); | |
6852 | ||
6853 | clock.m1 = (pll_dw1 & 0x7) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0; | |
6854 | clock.m2 = ((pll_dw0 & 0xff) << 22) | (pll_dw2 & 0x3fffff); | |
6855 | clock.n = (pll_dw1 >> DPIO_CHV_N_DIV_SHIFT) & 0xf; | |
6856 | clock.p1 = (cmn_dw13 >> DPIO_CHV_P1_DIV_SHIFT) & 0x7; | |
6857 | clock.p2 = (cmn_dw13 >> DPIO_CHV_P2_DIV_SHIFT) & 0x1f; | |
6858 | ||
6859 | chv_clock(refclk, &clock); | |
6860 | ||
6861 | /* clock.dot is the fast clock */ | |
6862 | pipe_config->port_clock = clock.dot / 5; | |
6863 | } | |
6864 | ||
0e8ffe1b | 6865 | static bool i9xx_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 6866 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
6867 | { |
6868 | struct drm_device *dev = crtc->base.dev; | |
6869 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6870 | uint32_t tmp; | |
6871 | ||
f458ebbc DV |
6872 | if (!intel_display_power_is_enabled(dev_priv, |
6873 | POWER_DOMAIN_PIPE(crtc->pipe))) | |
b5482bd0 ID |
6874 | return false; |
6875 | ||
e143a21c | 6876 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 | 6877 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
eccb140b | 6878 | |
0e8ffe1b DV |
6879 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
6880 | if (!(tmp & PIPECONF_ENABLE)) | |
6881 | return false; | |
6882 | ||
42571aef VS |
6883 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) { |
6884 | switch (tmp & PIPECONF_BPC_MASK) { | |
6885 | case PIPECONF_6BPC: | |
6886 | pipe_config->pipe_bpp = 18; | |
6887 | break; | |
6888 | case PIPECONF_8BPC: | |
6889 | pipe_config->pipe_bpp = 24; | |
6890 | break; | |
6891 | case PIPECONF_10BPC: | |
6892 | pipe_config->pipe_bpp = 30; | |
6893 | break; | |
6894 | default: | |
6895 | break; | |
6896 | } | |
6897 | } | |
6898 | ||
b5a9fa09 DV |
6899 | if (IS_VALLEYVIEW(dev) && (tmp & PIPECONF_COLOR_RANGE_SELECT)) |
6900 | pipe_config->limited_color_range = true; | |
6901 | ||
282740f7 VS |
6902 | if (INTEL_INFO(dev)->gen < 4) |
6903 | pipe_config->double_wide = tmp & PIPECONF_DOUBLE_WIDE; | |
6904 | ||
1bd1bd80 DV |
6905 | intel_get_pipe_timings(crtc, pipe_config); |
6906 | ||
2fa2fe9a DV |
6907 | i9xx_get_pfit_config(crtc, pipe_config); |
6908 | ||
6c49f241 DV |
6909 | if (INTEL_INFO(dev)->gen >= 4) { |
6910 | tmp = I915_READ(DPLL_MD(crtc->pipe)); | |
6911 | pipe_config->pixel_multiplier = | |
6912 | ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK) | |
6913 | >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1; | |
8bcc2795 | 6914 | pipe_config->dpll_hw_state.dpll_md = tmp; |
6c49f241 DV |
6915 | } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
6916 | tmp = I915_READ(DPLL(crtc->pipe)); | |
6917 | pipe_config->pixel_multiplier = | |
6918 | ((tmp & SDVO_MULTIPLIER_MASK) | |
6919 | >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1; | |
6920 | } else { | |
6921 | /* Note that on i915G/GM the pixel multiplier is in the sdvo | |
6922 | * port and will be fixed up in the encoder->get_config | |
6923 | * function. */ | |
6924 | pipe_config->pixel_multiplier = 1; | |
6925 | } | |
8bcc2795 DV |
6926 | pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe)); |
6927 | if (!IS_VALLEYVIEW(dev)) { | |
1c4e0274 VS |
6928 | /* |
6929 | * DPLL_DVO_2X_MODE must be enabled for both DPLLs | |
6930 | * on 830. Filter it out here so that we don't | |
6931 | * report errors due to that. | |
6932 | */ | |
6933 | if (IS_I830(dev)) | |
6934 | pipe_config->dpll_hw_state.dpll &= ~DPLL_DVO_2X_MODE; | |
6935 | ||
8bcc2795 DV |
6936 | pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe)); |
6937 | pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe)); | |
165e901c VS |
6938 | } else { |
6939 | /* Mask out read-only status bits. */ | |
6940 | pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV | | |
6941 | DPLL_PORTC_READY_MASK | | |
6942 | DPLL_PORTB_READY_MASK); | |
8bcc2795 | 6943 | } |
6c49f241 | 6944 | |
70b23a98 VS |
6945 | if (IS_CHERRYVIEW(dev)) |
6946 | chv_crtc_clock_get(crtc, pipe_config); | |
6947 | else if (IS_VALLEYVIEW(dev)) | |
acbec814 JB |
6948 | vlv_crtc_clock_get(crtc, pipe_config); |
6949 | else | |
6950 | i9xx_crtc_clock_get(crtc, pipe_config); | |
18442d08 | 6951 | |
0e8ffe1b DV |
6952 | return true; |
6953 | } | |
6954 | ||
dde86e2d | 6955 | static void ironlake_init_pch_refclk(struct drm_device *dev) |
13d83a67 JB |
6956 | { |
6957 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13d83a67 | 6958 | struct intel_encoder *encoder; |
74cfd7ac | 6959 | u32 val, final; |
13d83a67 | 6960 | bool has_lvds = false; |
199e5d79 | 6961 | bool has_cpu_edp = false; |
199e5d79 | 6962 | bool has_panel = false; |
99eb6a01 KP |
6963 | bool has_ck505 = false; |
6964 | bool can_ssc = false; | |
13d83a67 JB |
6965 | |
6966 | /* We need to take the global config into account */ | |
b2784e15 | 6967 | for_each_intel_encoder(dev, encoder) { |
199e5d79 KP |
6968 | switch (encoder->type) { |
6969 | case INTEL_OUTPUT_LVDS: | |
6970 | has_panel = true; | |
6971 | has_lvds = true; | |
6972 | break; | |
6973 | case INTEL_OUTPUT_EDP: | |
6974 | has_panel = true; | |
2de6905f | 6975 | if (enc_to_dig_port(&encoder->base)->port == PORT_A) |
199e5d79 KP |
6976 | has_cpu_edp = true; |
6977 | break; | |
6847d71b PZ |
6978 | default: |
6979 | break; | |
13d83a67 JB |
6980 | } |
6981 | } | |
6982 | ||
99eb6a01 | 6983 | if (HAS_PCH_IBX(dev)) { |
41aa3448 | 6984 | has_ck505 = dev_priv->vbt.display_clock_mode; |
99eb6a01 KP |
6985 | can_ssc = has_ck505; |
6986 | } else { | |
6987 | has_ck505 = false; | |
6988 | can_ssc = true; | |
6989 | } | |
6990 | ||
2de6905f ID |
6991 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n", |
6992 | has_panel, has_lvds, has_ck505); | |
13d83a67 JB |
6993 | |
6994 | /* Ironlake: try to setup display ref clock before DPLL | |
6995 | * enabling. This is only under driver's control after | |
6996 | * PCH B stepping, previous chipset stepping should be | |
6997 | * ignoring this setting. | |
6998 | */ | |
74cfd7ac CW |
6999 | val = I915_READ(PCH_DREF_CONTROL); |
7000 | ||
7001 | /* As we must carefully and slowly disable/enable each source in turn, | |
7002 | * compute the final state we want first and check if we need to | |
7003 | * make any changes at all. | |
7004 | */ | |
7005 | final = val; | |
7006 | final &= ~DREF_NONSPREAD_SOURCE_MASK; | |
7007 | if (has_ck505) | |
7008 | final |= DREF_NONSPREAD_CK505_ENABLE; | |
7009 | else | |
7010 | final |= DREF_NONSPREAD_SOURCE_ENABLE; | |
7011 | ||
7012 | final &= ~DREF_SSC_SOURCE_MASK; | |
7013 | final &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
7014 | final &= ~DREF_SSC1_ENABLE; | |
7015 | ||
7016 | if (has_panel) { | |
7017 | final |= DREF_SSC_SOURCE_ENABLE; | |
7018 | ||
7019 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
7020 | final |= DREF_SSC1_ENABLE; | |
7021 | ||
7022 | if (has_cpu_edp) { | |
7023 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
7024 | final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; | |
7025 | else | |
7026 | final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
7027 | } else | |
7028 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
7029 | } else { | |
7030 | final |= DREF_SSC_SOURCE_DISABLE; | |
7031 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
7032 | } | |
7033 | ||
7034 | if (final == val) | |
7035 | return; | |
7036 | ||
13d83a67 | 7037 | /* Always enable nonspread source */ |
74cfd7ac | 7038 | val &= ~DREF_NONSPREAD_SOURCE_MASK; |
13d83a67 | 7039 | |
99eb6a01 | 7040 | if (has_ck505) |
74cfd7ac | 7041 | val |= DREF_NONSPREAD_CK505_ENABLE; |
99eb6a01 | 7042 | else |
74cfd7ac | 7043 | val |= DREF_NONSPREAD_SOURCE_ENABLE; |
13d83a67 | 7044 | |
199e5d79 | 7045 | if (has_panel) { |
74cfd7ac CW |
7046 | val &= ~DREF_SSC_SOURCE_MASK; |
7047 | val |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 7048 | |
199e5d79 | 7049 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 7050 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 7051 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
74cfd7ac | 7052 | val |= DREF_SSC1_ENABLE; |
e77166b5 | 7053 | } else |
74cfd7ac | 7054 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 KP |
7055 | |
7056 | /* Get SSC going before enabling the outputs */ | |
74cfd7ac | 7057 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
7058 | POSTING_READ(PCH_DREF_CONTROL); |
7059 | udelay(200); | |
7060 | ||
74cfd7ac | 7061 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
13d83a67 JB |
7062 | |
7063 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 7064 | if (has_cpu_edp) { |
99eb6a01 | 7065 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 7066 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
74cfd7ac | 7067 | val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
eba905b2 | 7068 | } else |
74cfd7ac | 7069 | val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; |
199e5d79 | 7070 | } else |
74cfd7ac | 7071 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 7072 | |
74cfd7ac | 7073 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
7074 | POSTING_READ(PCH_DREF_CONTROL); |
7075 | udelay(200); | |
7076 | } else { | |
7077 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
7078 | ||
74cfd7ac | 7079 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
199e5d79 KP |
7080 | |
7081 | /* Turn off CPU output */ | |
74cfd7ac | 7082 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 7083 | |
74cfd7ac | 7084 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
7085 | POSTING_READ(PCH_DREF_CONTROL); |
7086 | udelay(200); | |
7087 | ||
7088 | /* Turn off the SSC source */ | |
74cfd7ac CW |
7089 | val &= ~DREF_SSC_SOURCE_MASK; |
7090 | val |= DREF_SSC_SOURCE_DISABLE; | |
199e5d79 KP |
7091 | |
7092 | /* Turn off SSC1 */ | |
74cfd7ac | 7093 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 | 7094 | |
74cfd7ac | 7095 | I915_WRITE(PCH_DREF_CONTROL, val); |
13d83a67 JB |
7096 | POSTING_READ(PCH_DREF_CONTROL); |
7097 | udelay(200); | |
7098 | } | |
74cfd7ac CW |
7099 | |
7100 | BUG_ON(val != final); | |
13d83a67 JB |
7101 | } |
7102 | ||
f31f2d55 | 7103 | static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv) |
dde86e2d | 7104 | { |
f31f2d55 | 7105 | uint32_t tmp; |
dde86e2d | 7106 | |
0ff066a9 PZ |
7107 | tmp = I915_READ(SOUTH_CHICKEN2); |
7108 | tmp |= FDI_MPHY_IOSFSB_RESET_CTL; | |
7109 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
dde86e2d | 7110 | |
0ff066a9 PZ |
7111 | if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) & |
7112 | FDI_MPHY_IOSFSB_RESET_STATUS, 100)) | |
7113 | DRM_ERROR("FDI mPHY reset assert timeout\n"); | |
dde86e2d | 7114 | |
0ff066a9 PZ |
7115 | tmp = I915_READ(SOUTH_CHICKEN2); |
7116 | tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL; | |
7117 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
dde86e2d | 7118 | |
0ff066a9 PZ |
7119 | if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) & |
7120 | FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100)) | |
7121 | DRM_ERROR("FDI mPHY reset de-assert timeout\n"); | |
f31f2d55 PZ |
7122 | } |
7123 | ||
7124 | /* WaMPhyProgramming:hsw */ | |
7125 | static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv) | |
7126 | { | |
7127 | uint32_t tmp; | |
dde86e2d PZ |
7128 | |
7129 | tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY); | |
7130 | tmp &= ~(0xFF << 24); | |
7131 | tmp |= (0x12 << 24); | |
7132 | intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY); | |
7133 | ||
dde86e2d PZ |
7134 | tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY); |
7135 | tmp |= (1 << 11); | |
7136 | intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY); | |
7137 | ||
7138 | tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY); | |
7139 | tmp |= (1 << 11); | |
7140 | intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY); | |
7141 | ||
dde86e2d PZ |
7142 | tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY); |
7143 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
7144 | intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY); | |
7145 | ||
7146 | tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY); | |
7147 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
7148 | intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY); | |
7149 | ||
0ff066a9 PZ |
7150 | tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY); |
7151 | tmp &= ~(7 << 13); | |
7152 | tmp |= (5 << 13); | |
7153 | intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY); | |
dde86e2d | 7154 | |
0ff066a9 PZ |
7155 | tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY); |
7156 | tmp &= ~(7 << 13); | |
7157 | tmp |= (5 << 13); | |
7158 | intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY); | |
dde86e2d PZ |
7159 | |
7160 | tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY); | |
7161 | tmp &= ~0xFF; | |
7162 | tmp |= 0x1C; | |
7163 | intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY); | |
7164 | ||
7165 | tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY); | |
7166 | tmp &= ~0xFF; | |
7167 | tmp |= 0x1C; | |
7168 | intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY); | |
7169 | ||
7170 | tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY); | |
7171 | tmp &= ~(0xFF << 16); | |
7172 | tmp |= (0x1C << 16); | |
7173 | intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY); | |
7174 | ||
7175 | tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY); | |
7176 | tmp &= ~(0xFF << 16); | |
7177 | tmp |= (0x1C << 16); | |
7178 | intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY); | |
7179 | ||
0ff066a9 PZ |
7180 | tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY); |
7181 | tmp |= (1 << 27); | |
7182 | intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY); | |
dde86e2d | 7183 | |
0ff066a9 PZ |
7184 | tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY); |
7185 | tmp |= (1 << 27); | |
7186 | intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY); | |
dde86e2d | 7187 | |
0ff066a9 PZ |
7188 | tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY); |
7189 | tmp &= ~(0xF << 28); | |
7190 | tmp |= (4 << 28); | |
7191 | intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY); | |
dde86e2d | 7192 | |
0ff066a9 PZ |
7193 | tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY); |
7194 | tmp &= ~(0xF << 28); | |
7195 | tmp |= (4 << 28); | |
7196 | intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); | |
f31f2d55 PZ |
7197 | } |
7198 | ||
2fa86a1f PZ |
7199 | /* Implements 3 different sequences from BSpec chapter "Display iCLK |
7200 | * Programming" based on the parameters passed: | |
7201 | * - Sequence to enable CLKOUT_DP | |
7202 | * - Sequence to enable CLKOUT_DP without spread | |
7203 | * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O | |
7204 | */ | |
7205 | static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread, | |
7206 | bool with_fdi) | |
f31f2d55 PZ |
7207 | { |
7208 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa86a1f PZ |
7209 | uint32_t reg, tmp; |
7210 | ||
7211 | if (WARN(with_fdi && !with_spread, "FDI requires downspread\n")) | |
7212 | with_spread = true; | |
7213 | if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE && | |
7214 | with_fdi, "LP PCH doesn't have FDI\n")) | |
7215 | with_fdi = false; | |
f31f2d55 PZ |
7216 | |
7217 | mutex_lock(&dev_priv->dpio_lock); | |
7218 | ||
7219 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
7220 | tmp &= ~SBI_SSCCTL_DISABLE; | |
7221 | tmp |= SBI_SSCCTL_PATHALT; | |
7222 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
7223 | ||
7224 | udelay(24); | |
7225 | ||
2fa86a1f PZ |
7226 | if (with_spread) { |
7227 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
7228 | tmp &= ~SBI_SSCCTL_PATHALT; | |
7229 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
f31f2d55 | 7230 | |
2fa86a1f PZ |
7231 | if (with_fdi) { |
7232 | lpt_reset_fdi_mphy(dev_priv); | |
7233 | lpt_program_fdi_mphy(dev_priv); | |
7234 | } | |
7235 | } | |
dde86e2d | 7236 | |
2fa86a1f PZ |
7237 | reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ? |
7238 | SBI_GEN0 : SBI_DBUFF0; | |
7239 | tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK); | |
7240 | tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE; | |
7241 | intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK); | |
c00db246 DV |
7242 | |
7243 | mutex_unlock(&dev_priv->dpio_lock); | |
dde86e2d PZ |
7244 | } |
7245 | ||
47701c3b PZ |
7246 | /* Sequence to disable CLKOUT_DP */ |
7247 | static void lpt_disable_clkout_dp(struct drm_device *dev) | |
7248 | { | |
7249 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7250 | uint32_t reg, tmp; | |
7251 | ||
7252 | mutex_lock(&dev_priv->dpio_lock); | |
7253 | ||
7254 | reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ? | |
7255 | SBI_GEN0 : SBI_DBUFF0; | |
7256 | tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK); | |
7257 | tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE; | |
7258 | intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK); | |
7259 | ||
7260 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
7261 | if (!(tmp & SBI_SSCCTL_DISABLE)) { | |
7262 | if (!(tmp & SBI_SSCCTL_PATHALT)) { | |
7263 | tmp |= SBI_SSCCTL_PATHALT; | |
7264 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
7265 | udelay(32); | |
7266 | } | |
7267 | tmp |= SBI_SSCCTL_DISABLE; | |
7268 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
7269 | } | |
7270 | ||
7271 | mutex_unlock(&dev_priv->dpio_lock); | |
7272 | } | |
7273 | ||
bf8fa3d3 PZ |
7274 | static void lpt_init_pch_refclk(struct drm_device *dev) |
7275 | { | |
bf8fa3d3 PZ |
7276 | struct intel_encoder *encoder; |
7277 | bool has_vga = false; | |
7278 | ||
b2784e15 | 7279 | for_each_intel_encoder(dev, encoder) { |
bf8fa3d3 PZ |
7280 | switch (encoder->type) { |
7281 | case INTEL_OUTPUT_ANALOG: | |
7282 | has_vga = true; | |
7283 | break; | |
6847d71b PZ |
7284 | default: |
7285 | break; | |
bf8fa3d3 PZ |
7286 | } |
7287 | } | |
7288 | ||
47701c3b PZ |
7289 | if (has_vga) |
7290 | lpt_enable_clkout_dp(dev, true, true); | |
7291 | else | |
7292 | lpt_disable_clkout_dp(dev); | |
bf8fa3d3 PZ |
7293 | } |
7294 | ||
dde86e2d PZ |
7295 | /* |
7296 | * Initialize reference clocks when the driver loads | |
7297 | */ | |
7298 | void intel_init_pch_refclk(struct drm_device *dev) | |
7299 | { | |
7300 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
7301 | ironlake_init_pch_refclk(dev); | |
7302 | else if (HAS_PCH_LPT(dev)) | |
7303 | lpt_init_pch_refclk(dev); | |
7304 | } | |
7305 | ||
d9d444cb JB |
7306 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
7307 | { | |
7308 | struct drm_device *dev = crtc->dev; | |
7309 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7310 | struct intel_encoder *encoder; | |
d9d444cb JB |
7311 | int num_connectors = 0; |
7312 | bool is_lvds = false; | |
7313 | ||
d0737e1d ACO |
7314 | for_each_intel_encoder(dev, encoder) { |
7315 | if (encoder->new_crtc != to_intel_crtc(crtc)) | |
7316 | continue; | |
7317 | ||
d9d444cb JB |
7318 | switch (encoder->type) { |
7319 | case INTEL_OUTPUT_LVDS: | |
7320 | is_lvds = true; | |
7321 | break; | |
6847d71b PZ |
7322 | default: |
7323 | break; | |
d9d444cb JB |
7324 | } |
7325 | num_connectors++; | |
7326 | } | |
7327 | ||
7328 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
e91e941b | 7329 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", |
41aa3448 | 7330 | dev_priv->vbt.lvds_ssc_freq); |
e91e941b | 7331 | return dev_priv->vbt.lvds_ssc_freq; |
d9d444cb JB |
7332 | } |
7333 | ||
7334 | return 120000; | |
7335 | } | |
7336 | ||
6ff93609 | 7337 | static void ironlake_set_pipeconf(struct drm_crtc *crtc) |
79e53945 | 7338 | { |
c8203565 | 7339 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
79e53945 JB |
7340 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
7341 | int pipe = intel_crtc->pipe; | |
c8203565 PZ |
7342 | uint32_t val; |
7343 | ||
78114071 | 7344 | val = 0; |
c8203565 | 7345 | |
6e3c9717 | 7346 | switch (intel_crtc->config->pipe_bpp) { |
c8203565 | 7347 | case 18: |
dfd07d72 | 7348 | val |= PIPECONF_6BPC; |
c8203565 PZ |
7349 | break; |
7350 | case 24: | |
dfd07d72 | 7351 | val |= PIPECONF_8BPC; |
c8203565 PZ |
7352 | break; |
7353 | case 30: | |
dfd07d72 | 7354 | val |= PIPECONF_10BPC; |
c8203565 PZ |
7355 | break; |
7356 | case 36: | |
dfd07d72 | 7357 | val |= PIPECONF_12BPC; |
c8203565 PZ |
7358 | break; |
7359 | default: | |
cc769b62 PZ |
7360 | /* Case prevented by intel_choose_pipe_bpp_dither. */ |
7361 | BUG(); | |
c8203565 PZ |
7362 | } |
7363 | ||
6e3c9717 | 7364 | if (intel_crtc->config->dither) |
c8203565 PZ |
7365 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
7366 | ||
6e3c9717 | 7367 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
c8203565 PZ |
7368 | val |= PIPECONF_INTERLACED_ILK; |
7369 | else | |
7370 | val |= PIPECONF_PROGRESSIVE; | |
7371 | ||
6e3c9717 | 7372 | if (intel_crtc->config->limited_color_range) |
3685a8f3 | 7373 | val |= PIPECONF_COLOR_RANGE_SELECT; |
3685a8f3 | 7374 | |
c8203565 PZ |
7375 | I915_WRITE(PIPECONF(pipe), val); |
7376 | POSTING_READ(PIPECONF(pipe)); | |
7377 | } | |
7378 | ||
86d3efce VS |
7379 | /* |
7380 | * Set up the pipe CSC unit. | |
7381 | * | |
7382 | * Currently only full range RGB to limited range RGB conversion | |
7383 | * is supported, but eventually this should handle various | |
7384 | * RGB<->YCbCr scenarios as well. | |
7385 | */ | |
50f3b016 | 7386 | static void intel_set_pipe_csc(struct drm_crtc *crtc) |
86d3efce VS |
7387 | { |
7388 | struct drm_device *dev = crtc->dev; | |
7389 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7390 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7391 | int pipe = intel_crtc->pipe; | |
7392 | uint16_t coeff = 0x7800; /* 1.0 */ | |
7393 | ||
7394 | /* | |
7395 | * TODO: Check what kind of values actually come out of the pipe | |
7396 | * with these coeff/postoff values and adjust to get the best | |
7397 | * accuracy. Perhaps we even need to take the bpc value into | |
7398 | * consideration. | |
7399 | */ | |
7400 | ||
6e3c9717 | 7401 | if (intel_crtc->config->limited_color_range) |
86d3efce VS |
7402 | coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */ |
7403 | ||
7404 | /* | |
7405 | * GY/GU and RY/RU should be the other way around according | |
7406 | * to BSpec, but reality doesn't agree. Just set them up in | |
7407 | * a way that results in the correct picture. | |
7408 | */ | |
7409 | I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16); | |
7410 | I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0); | |
7411 | ||
7412 | I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff); | |
7413 | I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0); | |
7414 | ||
7415 | I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0); | |
7416 | I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16); | |
7417 | ||
7418 | I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0); | |
7419 | I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0); | |
7420 | I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0); | |
7421 | ||
7422 | if (INTEL_INFO(dev)->gen > 6) { | |
7423 | uint16_t postoff = 0; | |
7424 | ||
6e3c9717 | 7425 | if (intel_crtc->config->limited_color_range) |
32cf0cb0 | 7426 | postoff = (16 * (1 << 12) / 255) & 0x1fff; |
86d3efce VS |
7427 | |
7428 | I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff); | |
7429 | I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff); | |
7430 | I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff); | |
7431 | ||
7432 | I915_WRITE(PIPE_CSC_MODE(pipe), 0); | |
7433 | } else { | |
7434 | uint32_t mode = CSC_MODE_YUV_TO_RGB; | |
7435 | ||
6e3c9717 | 7436 | if (intel_crtc->config->limited_color_range) |
86d3efce VS |
7437 | mode |= CSC_BLACK_SCREEN_OFFSET; |
7438 | ||
7439 | I915_WRITE(PIPE_CSC_MODE(pipe), mode); | |
7440 | } | |
7441 | } | |
7442 | ||
6ff93609 | 7443 | static void haswell_set_pipeconf(struct drm_crtc *crtc) |
ee2b0b38 | 7444 | { |
756f85cf PZ |
7445 | struct drm_device *dev = crtc->dev; |
7446 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee2b0b38 | 7447 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
756f85cf | 7448 | enum pipe pipe = intel_crtc->pipe; |
6e3c9717 | 7449 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
ee2b0b38 PZ |
7450 | uint32_t val; |
7451 | ||
3eff4faa | 7452 | val = 0; |
ee2b0b38 | 7453 | |
6e3c9717 | 7454 | if (IS_HASWELL(dev) && intel_crtc->config->dither) |
ee2b0b38 PZ |
7455 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
7456 | ||
6e3c9717 | 7457 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
ee2b0b38 PZ |
7458 | val |= PIPECONF_INTERLACED_ILK; |
7459 | else | |
7460 | val |= PIPECONF_PROGRESSIVE; | |
7461 | ||
702e7a56 PZ |
7462 | I915_WRITE(PIPECONF(cpu_transcoder), val); |
7463 | POSTING_READ(PIPECONF(cpu_transcoder)); | |
3eff4faa DV |
7464 | |
7465 | I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT); | |
7466 | POSTING_READ(GAMMA_MODE(intel_crtc->pipe)); | |
756f85cf | 7467 | |
3cdf122c | 7468 | if (IS_BROADWELL(dev) || INTEL_INFO(dev)->gen >= 9) { |
756f85cf PZ |
7469 | val = 0; |
7470 | ||
6e3c9717 | 7471 | switch (intel_crtc->config->pipe_bpp) { |
756f85cf PZ |
7472 | case 18: |
7473 | val |= PIPEMISC_DITHER_6_BPC; | |
7474 | break; | |
7475 | case 24: | |
7476 | val |= PIPEMISC_DITHER_8_BPC; | |
7477 | break; | |
7478 | case 30: | |
7479 | val |= PIPEMISC_DITHER_10_BPC; | |
7480 | break; | |
7481 | case 36: | |
7482 | val |= PIPEMISC_DITHER_12_BPC; | |
7483 | break; | |
7484 | default: | |
7485 | /* Case prevented by pipe_config_set_bpp. */ | |
7486 | BUG(); | |
7487 | } | |
7488 | ||
6e3c9717 | 7489 | if (intel_crtc->config->dither) |
756f85cf PZ |
7490 | val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP; |
7491 | ||
7492 | I915_WRITE(PIPEMISC(pipe), val); | |
7493 | } | |
ee2b0b38 PZ |
7494 | } |
7495 | ||
6591c6e4 | 7496 | static bool ironlake_compute_clocks(struct drm_crtc *crtc, |
190f68c5 | 7497 | struct intel_crtc_state *crtc_state, |
6591c6e4 PZ |
7498 | intel_clock_t *clock, |
7499 | bool *has_reduced_clock, | |
7500 | intel_clock_t *reduced_clock) | |
7501 | { | |
7502 | struct drm_device *dev = crtc->dev; | |
7503 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a919ff14 | 7504 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6591c6e4 | 7505 | int refclk; |
d4906093 | 7506 | const intel_limit_t *limit; |
a16af721 | 7507 | bool ret, is_lvds = false; |
79e53945 | 7508 | |
d0737e1d | 7509 | is_lvds = intel_pipe_will_have_type(intel_crtc, INTEL_OUTPUT_LVDS); |
79e53945 | 7510 | |
d9d444cb | 7511 | refclk = ironlake_get_refclk(crtc); |
79e53945 | 7512 | |
d4906093 ML |
7513 | /* |
7514 | * Returns a set of divisors for the desired target clock with the given | |
7515 | * refclk, or FALSE. The returned values represent the clock equation: | |
7516 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
7517 | */ | |
409ee761 | 7518 | limit = intel_limit(intel_crtc, refclk); |
a919ff14 | 7519 | ret = dev_priv->display.find_dpll(limit, intel_crtc, |
190f68c5 | 7520 | crtc_state->port_clock, |
ee9300bb | 7521 | refclk, NULL, clock); |
6591c6e4 PZ |
7522 | if (!ret) |
7523 | return false; | |
cda4b7d3 | 7524 | |
ddc9003c | 7525 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
7526 | /* |
7527 | * Ensure we match the reduced clock's P to the target clock. | |
7528 | * If the clocks don't match, we can't switch the display clock | |
7529 | * by using the FP0/FP1. In such case we will disable the LVDS | |
7530 | * downclock feature. | |
7531 | */ | |
ee9300bb | 7532 | *has_reduced_clock = |
a919ff14 | 7533 | dev_priv->display.find_dpll(limit, intel_crtc, |
ee9300bb DV |
7534 | dev_priv->lvds_downclock, |
7535 | refclk, clock, | |
7536 | reduced_clock); | |
652c393a | 7537 | } |
61e9653f | 7538 | |
6591c6e4 PZ |
7539 | return true; |
7540 | } | |
7541 | ||
d4b1931c PZ |
7542 | int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp) |
7543 | { | |
7544 | /* | |
7545 | * Account for spread spectrum to avoid | |
7546 | * oversubscribing the link. Max center spread | |
7547 | * is 2.5%; use 5% for safety's sake. | |
7548 | */ | |
7549 | u32 bps = target_clock * bpp * 21 / 20; | |
619d4d04 | 7550 | return DIV_ROUND_UP(bps, link_bw * 8); |
d4b1931c PZ |
7551 | } |
7552 | ||
7429e9d4 | 7553 | static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor) |
6cf86a5e | 7554 | { |
7429e9d4 | 7555 | return i9xx_dpll_compute_m(dpll) < factor * dpll->n; |
f48d8f23 PZ |
7556 | } |
7557 | ||
de13a2e3 | 7558 | static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, |
190f68c5 | 7559 | struct intel_crtc_state *crtc_state, |
7429e9d4 | 7560 | u32 *fp, |
9a7c7890 | 7561 | intel_clock_t *reduced_clock, u32 *fp2) |
79e53945 | 7562 | { |
de13a2e3 | 7563 | struct drm_crtc *crtc = &intel_crtc->base; |
79e53945 JB |
7564 | struct drm_device *dev = crtc->dev; |
7565 | struct drm_i915_private *dev_priv = dev->dev_private; | |
de13a2e3 PZ |
7566 | struct intel_encoder *intel_encoder; |
7567 | uint32_t dpll; | |
6cc5f341 | 7568 | int factor, num_connectors = 0; |
09ede541 | 7569 | bool is_lvds = false, is_sdvo = false; |
79e53945 | 7570 | |
d0737e1d ACO |
7571 | for_each_intel_encoder(dev, intel_encoder) { |
7572 | if (intel_encoder->new_crtc != to_intel_crtc(crtc)) | |
7573 | continue; | |
7574 | ||
de13a2e3 | 7575 | switch (intel_encoder->type) { |
79e53945 JB |
7576 | case INTEL_OUTPUT_LVDS: |
7577 | is_lvds = true; | |
7578 | break; | |
7579 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 7580 | case INTEL_OUTPUT_HDMI: |
79e53945 | 7581 | is_sdvo = true; |
79e53945 | 7582 | break; |
6847d71b PZ |
7583 | default: |
7584 | break; | |
79e53945 | 7585 | } |
43565a06 | 7586 | |
c751ce4f | 7587 | num_connectors++; |
79e53945 | 7588 | } |
79e53945 | 7589 | |
c1858123 | 7590 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
7591 | factor = 21; |
7592 | if (is_lvds) { | |
7593 | if ((intel_panel_use_ssc(dev_priv) && | |
e91e941b | 7594 | dev_priv->vbt.lvds_ssc_freq == 100000) || |
f0b44056 | 7595 | (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev))) |
8febb297 | 7596 | factor = 25; |
190f68c5 | 7597 | } else if (crtc_state->sdvo_tv_clock) |
8febb297 | 7598 | factor = 20; |
c1858123 | 7599 | |
190f68c5 | 7600 | if (ironlake_needs_fb_cb_tune(&crtc_state->dpll, factor)) |
7d0ac5b7 | 7601 | *fp |= FP_CB_TUNE; |
2c07245f | 7602 | |
9a7c7890 DV |
7603 | if (fp2 && (reduced_clock->m < factor * reduced_clock->n)) |
7604 | *fp2 |= FP_CB_TUNE; | |
7605 | ||
5eddb70b | 7606 | dpll = 0; |
2c07245f | 7607 | |
a07d6787 EA |
7608 | if (is_lvds) |
7609 | dpll |= DPLLB_MODE_LVDS; | |
7610 | else | |
7611 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
198a037f | 7612 | |
190f68c5 | 7613 | dpll |= (crtc_state->pixel_multiplier - 1) |
ef1b460d | 7614 | << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; |
198a037f DV |
7615 | |
7616 | if (is_sdvo) | |
4a33e48d | 7617 | dpll |= DPLL_SDVO_HIGH_SPEED; |
190f68c5 | 7618 | if (crtc_state->has_dp_encoder) |
4a33e48d | 7619 | dpll |= DPLL_SDVO_HIGH_SPEED; |
79e53945 | 7620 | |
a07d6787 | 7621 | /* compute bitmask from p1 value */ |
190f68c5 | 7622 | dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
a07d6787 | 7623 | /* also FPA1 */ |
190f68c5 | 7624 | dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
a07d6787 | 7625 | |
190f68c5 | 7626 | switch (crtc_state->dpll.p2) { |
a07d6787 EA |
7627 | case 5: |
7628 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
7629 | break; | |
7630 | case 7: | |
7631 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
7632 | break; | |
7633 | case 10: | |
7634 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
7635 | break; | |
7636 | case 14: | |
7637 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
7638 | break; | |
79e53945 JB |
7639 | } |
7640 | ||
b4c09f3b | 7641 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 7642 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
7643 | else |
7644 | dpll |= PLL_REF_INPUT_DREFCLK; | |
7645 | ||
959e16d6 | 7646 | return dpll | DPLL_VCO_ENABLE; |
de13a2e3 PZ |
7647 | } |
7648 | ||
190f68c5 ACO |
7649 | static int ironlake_crtc_compute_clock(struct intel_crtc *crtc, |
7650 | struct intel_crtc_state *crtc_state) | |
de13a2e3 | 7651 | { |
c7653199 | 7652 | struct drm_device *dev = crtc->base.dev; |
de13a2e3 | 7653 | intel_clock_t clock, reduced_clock; |
cbbab5bd | 7654 | u32 dpll = 0, fp = 0, fp2 = 0; |
e2f12b07 | 7655 | bool ok, has_reduced_clock = false; |
8b47047b | 7656 | bool is_lvds = false; |
e2b78267 | 7657 | struct intel_shared_dpll *pll; |
de13a2e3 | 7658 | |
409ee761 | 7659 | is_lvds = intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS); |
79e53945 | 7660 | |
5dc5298b PZ |
7661 | WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)), |
7662 | "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev)); | |
a07d6787 | 7663 | |
190f68c5 | 7664 | ok = ironlake_compute_clocks(&crtc->base, crtc_state, &clock, |
de13a2e3 | 7665 | &has_reduced_clock, &reduced_clock); |
190f68c5 | 7666 | if (!ok && !crtc_state->clock_set) { |
de13a2e3 PZ |
7667 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
7668 | return -EINVAL; | |
79e53945 | 7669 | } |
f47709a9 | 7670 | /* Compat-code for transition, will disappear. */ |
190f68c5 ACO |
7671 | if (!crtc_state->clock_set) { |
7672 | crtc_state->dpll.n = clock.n; | |
7673 | crtc_state->dpll.m1 = clock.m1; | |
7674 | crtc_state->dpll.m2 = clock.m2; | |
7675 | crtc_state->dpll.p1 = clock.p1; | |
7676 | crtc_state->dpll.p2 = clock.p2; | |
f47709a9 | 7677 | } |
79e53945 | 7678 | |
5dc5298b | 7679 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ |
190f68c5 ACO |
7680 | if (crtc_state->has_pch_encoder) { |
7681 | fp = i9xx_dpll_compute_fp(&crtc_state->dpll); | |
cbbab5bd | 7682 | if (has_reduced_clock) |
7429e9d4 | 7683 | fp2 = i9xx_dpll_compute_fp(&reduced_clock); |
cbbab5bd | 7684 | |
190f68c5 | 7685 | dpll = ironlake_compute_dpll(crtc, crtc_state, |
cbbab5bd DV |
7686 | &fp, &reduced_clock, |
7687 | has_reduced_clock ? &fp2 : NULL); | |
7688 | ||
190f68c5 ACO |
7689 | crtc_state->dpll_hw_state.dpll = dpll; |
7690 | crtc_state->dpll_hw_state.fp0 = fp; | |
66e985c0 | 7691 | if (has_reduced_clock) |
190f68c5 | 7692 | crtc_state->dpll_hw_state.fp1 = fp2; |
66e985c0 | 7693 | else |
190f68c5 | 7694 | crtc_state->dpll_hw_state.fp1 = fp; |
66e985c0 | 7695 | |
190f68c5 | 7696 | pll = intel_get_shared_dpll(crtc, crtc_state); |
ee7b9f93 | 7697 | if (pll == NULL) { |
84f44ce7 | 7698 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n", |
c7653199 | 7699 | pipe_name(crtc->pipe)); |
4b645f14 JB |
7700 | return -EINVAL; |
7701 | } | |
3fb37703 | 7702 | } |
79e53945 | 7703 | |
d330a953 | 7704 | if (is_lvds && has_reduced_clock && i915.powersave) |
c7653199 | 7705 | crtc->lowfreq_avail = true; |
bcd644e0 | 7706 | else |
c7653199 | 7707 | crtc->lowfreq_avail = false; |
e2b78267 | 7708 | |
c8f7a0db | 7709 | return 0; |
79e53945 JB |
7710 | } |
7711 | ||
eb14cb74 VS |
7712 | static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc, |
7713 | struct intel_link_m_n *m_n) | |
7714 | { | |
7715 | struct drm_device *dev = crtc->base.dev; | |
7716 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7717 | enum pipe pipe = crtc->pipe; | |
7718 | ||
7719 | m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe)); | |
7720 | m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe)); | |
7721 | m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe)) | |
7722 | & ~TU_SIZE_MASK; | |
7723 | m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe)); | |
7724 | m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe)) | |
7725 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
7726 | } | |
7727 | ||
7728 | static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc, | |
7729 | enum transcoder transcoder, | |
b95af8be VK |
7730 | struct intel_link_m_n *m_n, |
7731 | struct intel_link_m_n *m2_n2) | |
72419203 DV |
7732 | { |
7733 | struct drm_device *dev = crtc->base.dev; | |
7734 | struct drm_i915_private *dev_priv = dev->dev_private; | |
eb14cb74 | 7735 | enum pipe pipe = crtc->pipe; |
72419203 | 7736 | |
eb14cb74 VS |
7737 | if (INTEL_INFO(dev)->gen >= 5) { |
7738 | m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder)); | |
7739 | m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder)); | |
7740 | m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder)) | |
7741 | & ~TU_SIZE_MASK; | |
7742 | m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder)); | |
7743 | m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder)) | |
7744 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
b95af8be VK |
7745 | /* Read M2_N2 registers only for gen < 8 (M2_N2 available for |
7746 | * gen < 8) and if DRRS is supported (to make sure the | |
7747 | * registers are not unnecessarily read). | |
7748 | */ | |
7749 | if (m2_n2 && INTEL_INFO(dev)->gen < 8 && | |
6e3c9717 | 7750 | crtc->config->has_drrs) { |
b95af8be VK |
7751 | m2_n2->link_m = I915_READ(PIPE_LINK_M2(transcoder)); |
7752 | m2_n2->link_n = I915_READ(PIPE_LINK_N2(transcoder)); | |
7753 | m2_n2->gmch_m = I915_READ(PIPE_DATA_M2(transcoder)) | |
7754 | & ~TU_SIZE_MASK; | |
7755 | m2_n2->gmch_n = I915_READ(PIPE_DATA_N2(transcoder)); | |
7756 | m2_n2->tu = ((I915_READ(PIPE_DATA_M2(transcoder)) | |
7757 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
7758 | } | |
eb14cb74 VS |
7759 | } else { |
7760 | m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe)); | |
7761 | m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe)); | |
7762 | m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe)) | |
7763 | & ~TU_SIZE_MASK; | |
7764 | m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe)); | |
7765 | m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe)) | |
7766 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
7767 | } | |
7768 | } | |
7769 | ||
7770 | void intel_dp_get_m_n(struct intel_crtc *crtc, | |
5cec258b | 7771 | struct intel_crtc_state *pipe_config) |
eb14cb74 | 7772 | { |
681a8504 | 7773 | if (pipe_config->has_pch_encoder) |
eb14cb74 VS |
7774 | intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n); |
7775 | else | |
7776 | intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, | |
b95af8be VK |
7777 | &pipe_config->dp_m_n, |
7778 | &pipe_config->dp_m2_n2); | |
eb14cb74 | 7779 | } |
72419203 | 7780 | |
eb14cb74 | 7781 | static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc, |
5cec258b | 7782 | struct intel_crtc_state *pipe_config) |
eb14cb74 VS |
7783 | { |
7784 | intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, | |
b95af8be | 7785 | &pipe_config->fdi_m_n, NULL); |
72419203 DV |
7786 | } |
7787 | ||
bd2e244f | 7788 | static void skylake_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 7789 | struct intel_crtc_state *pipe_config) |
bd2e244f JB |
7790 | { |
7791 | struct drm_device *dev = crtc->base.dev; | |
7792 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7793 | uint32_t tmp; | |
7794 | ||
7795 | tmp = I915_READ(PS_CTL(crtc->pipe)); | |
7796 | ||
7797 | if (tmp & PS_ENABLE) { | |
7798 | pipe_config->pch_pfit.enabled = true; | |
7799 | pipe_config->pch_pfit.pos = I915_READ(PS_WIN_POS(crtc->pipe)); | |
7800 | pipe_config->pch_pfit.size = I915_READ(PS_WIN_SZ(crtc->pipe)); | |
7801 | } | |
7802 | } | |
7803 | ||
5724dbd1 DL |
7804 | static void |
7805 | skylake_get_initial_plane_config(struct intel_crtc *crtc, | |
7806 | struct intel_initial_plane_config *plane_config) | |
bc8d7dff DL |
7807 | { |
7808 | struct drm_device *dev = crtc->base.dev; | |
7809 | struct drm_i915_private *dev_priv = dev->dev_private; | |
40f46283 | 7810 | u32 val, base, offset, stride_mult, tiling; |
bc8d7dff DL |
7811 | int pipe = crtc->pipe; |
7812 | int fourcc, pixel_format; | |
7813 | int aligned_height; | |
7814 | struct drm_framebuffer *fb; | |
1b842c89 | 7815 | struct intel_framebuffer *intel_fb; |
bc8d7dff | 7816 | |
d9806c9f | 7817 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 7818 | if (!intel_fb) { |
bc8d7dff DL |
7819 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
7820 | return; | |
7821 | } | |
7822 | ||
1b842c89 DL |
7823 | fb = &intel_fb->base; |
7824 | ||
bc8d7dff | 7825 | val = I915_READ(PLANE_CTL(pipe, 0)); |
42a7b088 DL |
7826 | if (!(val & PLANE_CTL_ENABLE)) |
7827 | goto error; | |
7828 | ||
bc8d7dff DL |
7829 | pixel_format = val & PLANE_CTL_FORMAT_MASK; |
7830 | fourcc = skl_format_to_fourcc(pixel_format, | |
7831 | val & PLANE_CTL_ORDER_RGBX, | |
7832 | val & PLANE_CTL_ALPHA_MASK); | |
7833 | fb->pixel_format = fourcc; | |
7834 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
7835 | ||
40f46283 DL |
7836 | tiling = val & PLANE_CTL_TILED_MASK; |
7837 | switch (tiling) { | |
7838 | case PLANE_CTL_TILED_LINEAR: | |
7839 | fb->modifier[0] = DRM_FORMAT_MOD_NONE; | |
7840 | break; | |
7841 | case PLANE_CTL_TILED_X: | |
7842 | plane_config->tiling = I915_TILING_X; | |
7843 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; | |
7844 | break; | |
7845 | case PLANE_CTL_TILED_Y: | |
7846 | fb->modifier[0] = I915_FORMAT_MOD_Y_TILED; | |
7847 | break; | |
7848 | case PLANE_CTL_TILED_YF: | |
7849 | fb->modifier[0] = I915_FORMAT_MOD_Yf_TILED; | |
7850 | break; | |
7851 | default: | |
7852 | MISSING_CASE(tiling); | |
7853 | goto error; | |
7854 | } | |
7855 | ||
bc8d7dff DL |
7856 | base = I915_READ(PLANE_SURF(pipe, 0)) & 0xfffff000; |
7857 | plane_config->base = base; | |
7858 | ||
7859 | offset = I915_READ(PLANE_OFFSET(pipe, 0)); | |
7860 | ||
7861 | val = I915_READ(PLANE_SIZE(pipe, 0)); | |
7862 | fb->height = ((val >> 16) & 0xfff) + 1; | |
7863 | fb->width = ((val >> 0) & 0x1fff) + 1; | |
7864 | ||
7865 | val = I915_READ(PLANE_STRIDE(pipe, 0)); | |
40f46283 DL |
7866 | stride_mult = intel_fb_stride_alignment(dev, fb->modifier[0], |
7867 | fb->pixel_format); | |
bc8d7dff DL |
7868 | fb->pitches[0] = (val & 0x3ff) * stride_mult; |
7869 | ||
7870 | aligned_height = intel_fb_align_height(dev, fb->height, | |
091df6cb DV |
7871 | fb->pixel_format, |
7872 | fb->modifier[0]); | |
bc8d7dff | 7873 | |
f37b5c2b | 7874 | plane_config->size = fb->pitches[0] * aligned_height; |
bc8d7dff DL |
7875 | |
7876 | DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", | |
7877 | pipe_name(pipe), fb->width, fb->height, | |
7878 | fb->bits_per_pixel, base, fb->pitches[0], | |
7879 | plane_config->size); | |
7880 | ||
2d14030b | 7881 | plane_config->fb = intel_fb; |
bc8d7dff DL |
7882 | return; |
7883 | ||
7884 | error: | |
7885 | kfree(fb); | |
7886 | } | |
7887 | ||
2fa2fe9a | 7888 | static void ironlake_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 7889 | struct intel_crtc_state *pipe_config) |
2fa2fe9a DV |
7890 | { |
7891 | struct drm_device *dev = crtc->base.dev; | |
7892 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7893 | uint32_t tmp; | |
7894 | ||
7895 | tmp = I915_READ(PF_CTL(crtc->pipe)); | |
7896 | ||
7897 | if (tmp & PF_ENABLE) { | |
fd4daa9c | 7898 | pipe_config->pch_pfit.enabled = true; |
2fa2fe9a DV |
7899 | pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe)); |
7900 | pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe)); | |
cb8b2a30 DV |
7901 | |
7902 | /* We currently do not free assignements of panel fitters on | |
7903 | * ivb/hsw (since we don't use the higher upscaling modes which | |
7904 | * differentiates them) so just WARN about this case for now. */ | |
7905 | if (IS_GEN7(dev)) { | |
7906 | WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) != | |
7907 | PF_PIPE_SEL_IVB(crtc->pipe)); | |
7908 | } | |
2fa2fe9a | 7909 | } |
79e53945 JB |
7910 | } |
7911 | ||
5724dbd1 DL |
7912 | static void |
7913 | ironlake_get_initial_plane_config(struct intel_crtc *crtc, | |
7914 | struct intel_initial_plane_config *plane_config) | |
4c6baa59 JB |
7915 | { |
7916 | struct drm_device *dev = crtc->base.dev; | |
7917 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7918 | u32 val, base, offset; | |
aeee5a49 | 7919 | int pipe = crtc->pipe; |
4c6baa59 JB |
7920 | int fourcc, pixel_format; |
7921 | int aligned_height; | |
b113d5ee | 7922 | struct drm_framebuffer *fb; |
1b842c89 | 7923 | struct intel_framebuffer *intel_fb; |
4c6baa59 | 7924 | |
42a7b088 DL |
7925 | val = I915_READ(DSPCNTR(pipe)); |
7926 | if (!(val & DISPLAY_PLANE_ENABLE)) | |
7927 | return; | |
7928 | ||
d9806c9f | 7929 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 7930 | if (!intel_fb) { |
4c6baa59 JB |
7931 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
7932 | return; | |
7933 | } | |
7934 | ||
1b842c89 DL |
7935 | fb = &intel_fb->base; |
7936 | ||
18c5247e DV |
7937 | if (INTEL_INFO(dev)->gen >= 4) { |
7938 | if (val & DISPPLANE_TILED) { | |
49af449b | 7939 | plane_config->tiling = I915_TILING_X; |
18c5247e DV |
7940 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; |
7941 | } | |
7942 | } | |
4c6baa59 JB |
7943 | |
7944 | pixel_format = val & DISPPLANE_PIXFORMAT_MASK; | |
b35d63fa | 7945 | fourcc = i9xx_format_to_fourcc(pixel_format); |
b113d5ee DL |
7946 | fb->pixel_format = fourcc; |
7947 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
4c6baa59 | 7948 | |
aeee5a49 | 7949 | base = I915_READ(DSPSURF(pipe)) & 0xfffff000; |
4c6baa59 | 7950 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
aeee5a49 | 7951 | offset = I915_READ(DSPOFFSET(pipe)); |
4c6baa59 | 7952 | } else { |
49af449b | 7953 | if (plane_config->tiling) |
aeee5a49 | 7954 | offset = I915_READ(DSPTILEOFF(pipe)); |
4c6baa59 | 7955 | else |
aeee5a49 | 7956 | offset = I915_READ(DSPLINOFF(pipe)); |
4c6baa59 JB |
7957 | } |
7958 | plane_config->base = base; | |
7959 | ||
7960 | val = I915_READ(PIPESRC(pipe)); | |
b113d5ee DL |
7961 | fb->width = ((val >> 16) & 0xfff) + 1; |
7962 | fb->height = ((val >> 0) & 0xfff) + 1; | |
4c6baa59 JB |
7963 | |
7964 | val = I915_READ(DSPSTRIDE(pipe)); | |
b113d5ee | 7965 | fb->pitches[0] = val & 0xffffffc0; |
4c6baa59 | 7966 | |
b113d5ee | 7967 | aligned_height = intel_fb_align_height(dev, fb->height, |
091df6cb DV |
7968 | fb->pixel_format, |
7969 | fb->modifier[0]); | |
4c6baa59 | 7970 | |
f37b5c2b | 7971 | plane_config->size = fb->pitches[0] * aligned_height; |
4c6baa59 | 7972 | |
2844a921 DL |
7973 | DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", |
7974 | pipe_name(pipe), fb->width, fb->height, | |
7975 | fb->bits_per_pixel, base, fb->pitches[0], | |
7976 | plane_config->size); | |
b113d5ee | 7977 | |
2d14030b | 7978 | plane_config->fb = intel_fb; |
4c6baa59 JB |
7979 | } |
7980 | ||
0e8ffe1b | 7981 | static bool ironlake_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 7982 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
7983 | { |
7984 | struct drm_device *dev = crtc->base.dev; | |
7985 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7986 | uint32_t tmp; | |
7987 | ||
f458ebbc DV |
7988 | if (!intel_display_power_is_enabled(dev_priv, |
7989 | POWER_DOMAIN_PIPE(crtc->pipe))) | |
930e8c9e PZ |
7990 | return false; |
7991 | ||
e143a21c | 7992 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 | 7993 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
eccb140b | 7994 | |
0e8ffe1b DV |
7995 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
7996 | if (!(tmp & PIPECONF_ENABLE)) | |
7997 | return false; | |
7998 | ||
42571aef VS |
7999 | switch (tmp & PIPECONF_BPC_MASK) { |
8000 | case PIPECONF_6BPC: | |
8001 | pipe_config->pipe_bpp = 18; | |
8002 | break; | |
8003 | case PIPECONF_8BPC: | |
8004 | pipe_config->pipe_bpp = 24; | |
8005 | break; | |
8006 | case PIPECONF_10BPC: | |
8007 | pipe_config->pipe_bpp = 30; | |
8008 | break; | |
8009 | case PIPECONF_12BPC: | |
8010 | pipe_config->pipe_bpp = 36; | |
8011 | break; | |
8012 | default: | |
8013 | break; | |
8014 | } | |
8015 | ||
b5a9fa09 DV |
8016 | if (tmp & PIPECONF_COLOR_RANGE_SELECT) |
8017 | pipe_config->limited_color_range = true; | |
8018 | ||
ab9412ba | 8019 | if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) { |
66e985c0 DV |
8020 | struct intel_shared_dpll *pll; |
8021 | ||
88adfff1 DV |
8022 | pipe_config->has_pch_encoder = true; |
8023 | ||
627eb5a3 DV |
8024 | tmp = I915_READ(FDI_RX_CTL(crtc->pipe)); |
8025 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
8026 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
72419203 DV |
8027 | |
8028 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
6c49f241 | 8029 | |
c0d43d62 | 8030 | if (HAS_PCH_IBX(dev_priv->dev)) { |
d94ab068 DV |
8031 | pipe_config->shared_dpll = |
8032 | (enum intel_dpll_id) crtc->pipe; | |
c0d43d62 DV |
8033 | } else { |
8034 | tmp = I915_READ(PCH_DPLL_SEL); | |
8035 | if (tmp & TRANS_DPLLB_SEL(crtc->pipe)) | |
8036 | pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B; | |
8037 | else | |
8038 | pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A; | |
8039 | } | |
66e985c0 DV |
8040 | |
8041 | pll = &dev_priv->shared_dplls[pipe_config->shared_dpll]; | |
8042 | ||
8043 | WARN_ON(!pll->get_hw_state(dev_priv, pll, | |
8044 | &pipe_config->dpll_hw_state)); | |
c93f54cf DV |
8045 | |
8046 | tmp = pipe_config->dpll_hw_state.dpll; | |
8047 | pipe_config->pixel_multiplier = | |
8048 | ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK) | |
8049 | >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1; | |
18442d08 VS |
8050 | |
8051 | ironlake_pch_clock_get(crtc, pipe_config); | |
6c49f241 DV |
8052 | } else { |
8053 | pipe_config->pixel_multiplier = 1; | |
627eb5a3 DV |
8054 | } |
8055 | ||
1bd1bd80 DV |
8056 | intel_get_pipe_timings(crtc, pipe_config); |
8057 | ||
2fa2fe9a DV |
8058 | ironlake_get_pfit_config(crtc, pipe_config); |
8059 | ||
0e8ffe1b DV |
8060 | return true; |
8061 | } | |
8062 | ||
be256dc7 PZ |
8063 | static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv) |
8064 | { | |
8065 | struct drm_device *dev = dev_priv->dev; | |
be256dc7 | 8066 | struct intel_crtc *crtc; |
be256dc7 | 8067 | |
d3fcc808 | 8068 | for_each_intel_crtc(dev, crtc) |
e2c719b7 | 8069 | I915_STATE_WARN(crtc->active, "CRTC for pipe %c enabled\n", |
be256dc7 PZ |
8070 | pipe_name(crtc->pipe)); |
8071 | ||
e2c719b7 RC |
8072 | I915_STATE_WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n"); |
8073 | I915_STATE_WARN(I915_READ(SPLL_CTL) & SPLL_PLL_ENABLE, "SPLL enabled\n"); | |
8074 | I915_STATE_WARN(I915_READ(WRPLL_CTL1) & WRPLL_PLL_ENABLE, "WRPLL1 enabled\n"); | |
8075 | I915_STATE_WARN(I915_READ(WRPLL_CTL2) & WRPLL_PLL_ENABLE, "WRPLL2 enabled\n"); | |
8076 | I915_STATE_WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n"); | |
8077 | I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE, | |
be256dc7 | 8078 | "CPU PWM1 enabled\n"); |
c5107b87 | 8079 | if (IS_HASWELL(dev)) |
e2c719b7 | 8080 | I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE, |
c5107b87 | 8081 | "CPU PWM2 enabled\n"); |
e2c719b7 | 8082 | I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE, |
be256dc7 | 8083 | "PCH PWM1 enabled\n"); |
e2c719b7 | 8084 | I915_STATE_WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE, |
be256dc7 | 8085 | "Utility pin enabled\n"); |
e2c719b7 | 8086 | I915_STATE_WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n"); |
be256dc7 | 8087 | |
9926ada1 PZ |
8088 | /* |
8089 | * In theory we can still leave IRQs enabled, as long as only the HPD | |
8090 | * interrupts remain enabled. We used to check for that, but since it's | |
8091 | * gen-specific and since we only disable LCPLL after we fully disable | |
8092 | * the interrupts, the check below should be enough. | |
8093 | */ | |
e2c719b7 | 8094 | I915_STATE_WARN(intel_irqs_enabled(dev_priv), "IRQs enabled\n"); |
be256dc7 PZ |
8095 | } |
8096 | ||
9ccd5aeb PZ |
8097 | static uint32_t hsw_read_dcomp(struct drm_i915_private *dev_priv) |
8098 | { | |
8099 | struct drm_device *dev = dev_priv->dev; | |
8100 | ||
8101 | if (IS_HASWELL(dev)) | |
8102 | return I915_READ(D_COMP_HSW); | |
8103 | else | |
8104 | return I915_READ(D_COMP_BDW); | |
8105 | } | |
8106 | ||
3c4c9b81 PZ |
8107 | static void hsw_write_dcomp(struct drm_i915_private *dev_priv, uint32_t val) |
8108 | { | |
8109 | struct drm_device *dev = dev_priv->dev; | |
8110 | ||
8111 | if (IS_HASWELL(dev)) { | |
8112 | mutex_lock(&dev_priv->rps.hw_lock); | |
8113 | if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, | |
8114 | val)) | |
f475dadf | 8115 | DRM_ERROR("Failed to write to D_COMP\n"); |
3c4c9b81 PZ |
8116 | mutex_unlock(&dev_priv->rps.hw_lock); |
8117 | } else { | |
9ccd5aeb PZ |
8118 | I915_WRITE(D_COMP_BDW, val); |
8119 | POSTING_READ(D_COMP_BDW); | |
3c4c9b81 | 8120 | } |
be256dc7 PZ |
8121 | } |
8122 | ||
8123 | /* | |
8124 | * This function implements pieces of two sequences from BSpec: | |
8125 | * - Sequence for display software to disable LCPLL | |
8126 | * - Sequence for display software to allow package C8+ | |
8127 | * The steps implemented here are just the steps that actually touch the LCPLL | |
8128 | * register. Callers should take care of disabling all the display engine | |
8129 | * functions, doing the mode unset, fixing interrupts, etc. | |
8130 | */ | |
6ff58d53 PZ |
8131 | static void hsw_disable_lcpll(struct drm_i915_private *dev_priv, |
8132 | bool switch_to_fclk, bool allow_power_down) | |
be256dc7 PZ |
8133 | { |
8134 | uint32_t val; | |
8135 | ||
8136 | assert_can_disable_lcpll(dev_priv); | |
8137 | ||
8138 | val = I915_READ(LCPLL_CTL); | |
8139 | ||
8140 | if (switch_to_fclk) { | |
8141 | val |= LCPLL_CD_SOURCE_FCLK; | |
8142 | I915_WRITE(LCPLL_CTL, val); | |
8143 | ||
8144 | if (wait_for_atomic_us(I915_READ(LCPLL_CTL) & | |
8145 | LCPLL_CD_SOURCE_FCLK_DONE, 1)) | |
8146 | DRM_ERROR("Switching to FCLK failed\n"); | |
8147 | ||
8148 | val = I915_READ(LCPLL_CTL); | |
8149 | } | |
8150 | ||
8151 | val |= LCPLL_PLL_DISABLE; | |
8152 | I915_WRITE(LCPLL_CTL, val); | |
8153 | POSTING_READ(LCPLL_CTL); | |
8154 | ||
8155 | if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1)) | |
8156 | DRM_ERROR("LCPLL still locked\n"); | |
8157 | ||
9ccd5aeb | 8158 | val = hsw_read_dcomp(dev_priv); |
be256dc7 | 8159 | val |= D_COMP_COMP_DISABLE; |
3c4c9b81 | 8160 | hsw_write_dcomp(dev_priv, val); |
be256dc7 PZ |
8161 | ndelay(100); |
8162 | ||
9ccd5aeb PZ |
8163 | if (wait_for((hsw_read_dcomp(dev_priv) & D_COMP_RCOMP_IN_PROGRESS) == 0, |
8164 | 1)) | |
be256dc7 PZ |
8165 | DRM_ERROR("D_COMP RCOMP still in progress\n"); |
8166 | ||
8167 | if (allow_power_down) { | |
8168 | val = I915_READ(LCPLL_CTL); | |
8169 | val |= LCPLL_POWER_DOWN_ALLOW; | |
8170 | I915_WRITE(LCPLL_CTL, val); | |
8171 | POSTING_READ(LCPLL_CTL); | |
8172 | } | |
8173 | } | |
8174 | ||
8175 | /* | |
8176 | * Fully restores LCPLL, disallowing power down and switching back to LCPLL | |
8177 | * source. | |
8178 | */ | |
6ff58d53 | 8179 | static void hsw_restore_lcpll(struct drm_i915_private *dev_priv) |
be256dc7 PZ |
8180 | { |
8181 | uint32_t val; | |
8182 | ||
8183 | val = I915_READ(LCPLL_CTL); | |
8184 | ||
8185 | if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK | | |
8186 | LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK) | |
8187 | return; | |
8188 | ||
a8a8bd54 PZ |
8189 | /* |
8190 | * Make sure we're not on PC8 state before disabling PC8, otherwise | |
8191 | * we'll hang the machine. To prevent PC8 state, just enable force_wake. | |
a8a8bd54 | 8192 | */ |
59bad947 | 8193 | intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); |
215733fa | 8194 | |
be256dc7 PZ |
8195 | if (val & LCPLL_POWER_DOWN_ALLOW) { |
8196 | val &= ~LCPLL_POWER_DOWN_ALLOW; | |
8197 | I915_WRITE(LCPLL_CTL, val); | |
35d8f2eb | 8198 | POSTING_READ(LCPLL_CTL); |
be256dc7 PZ |
8199 | } |
8200 | ||
9ccd5aeb | 8201 | val = hsw_read_dcomp(dev_priv); |
be256dc7 PZ |
8202 | val |= D_COMP_COMP_FORCE; |
8203 | val &= ~D_COMP_COMP_DISABLE; | |
3c4c9b81 | 8204 | hsw_write_dcomp(dev_priv, val); |
be256dc7 PZ |
8205 | |
8206 | val = I915_READ(LCPLL_CTL); | |
8207 | val &= ~LCPLL_PLL_DISABLE; | |
8208 | I915_WRITE(LCPLL_CTL, val); | |
8209 | ||
8210 | if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5)) | |
8211 | DRM_ERROR("LCPLL not locked yet\n"); | |
8212 | ||
8213 | if (val & LCPLL_CD_SOURCE_FCLK) { | |
8214 | val = I915_READ(LCPLL_CTL); | |
8215 | val &= ~LCPLL_CD_SOURCE_FCLK; | |
8216 | I915_WRITE(LCPLL_CTL, val); | |
8217 | ||
8218 | if (wait_for_atomic_us((I915_READ(LCPLL_CTL) & | |
8219 | LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1)) | |
8220 | DRM_ERROR("Switching back to LCPLL failed\n"); | |
8221 | } | |
215733fa | 8222 | |
59bad947 | 8223 | intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); |
be256dc7 PZ |
8224 | } |
8225 | ||
765dab67 PZ |
8226 | /* |
8227 | * Package states C8 and deeper are really deep PC states that can only be | |
8228 | * reached when all the devices on the system allow it, so even if the graphics | |
8229 | * device allows PC8+, it doesn't mean the system will actually get to these | |
8230 | * states. Our driver only allows PC8+ when going into runtime PM. | |
8231 | * | |
8232 | * The requirements for PC8+ are that all the outputs are disabled, the power | |
8233 | * well is disabled and most interrupts are disabled, and these are also | |
8234 | * requirements for runtime PM. When these conditions are met, we manually do | |
8235 | * the other conditions: disable the interrupts, clocks and switch LCPLL refclk | |
8236 | * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard | |
8237 | * hang the machine. | |
8238 | * | |
8239 | * When we really reach PC8 or deeper states (not just when we allow it) we lose | |
8240 | * the state of some registers, so when we come back from PC8+ we need to | |
8241 | * restore this state. We don't get into PC8+ if we're not in RC6, so we don't | |
8242 | * need to take care of the registers kept by RC6. Notice that this happens even | |
8243 | * if we don't put the device in PCI D3 state (which is what currently happens | |
8244 | * because of the runtime PM support). | |
8245 | * | |
8246 | * For more, read "Display Sequences for Package C8" on the hardware | |
8247 | * documentation. | |
8248 | */ | |
a14cb6fc | 8249 | void hsw_enable_pc8(struct drm_i915_private *dev_priv) |
c67a470b | 8250 | { |
c67a470b PZ |
8251 | struct drm_device *dev = dev_priv->dev; |
8252 | uint32_t val; | |
8253 | ||
c67a470b PZ |
8254 | DRM_DEBUG_KMS("Enabling package C8+\n"); |
8255 | ||
c67a470b PZ |
8256 | if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) { |
8257 | val = I915_READ(SOUTH_DSPCLK_GATE_D); | |
8258 | val &= ~PCH_LP_PARTITION_LEVEL_DISABLE; | |
8259 | I915_WRITE(SOUTH_DSPCLK_GATE_D, val); | |
8260 | } | |
8261 | ||
8262 | lpt_disable_clkout_dp(dev); | |
c67a470b PZ |
8263 | hsw_disable_lcpll(dev_priv, true, true); |
8264 | } | |
8265 | ||
a14cb6fc | 8266 | void hsw_disable_pc8(struct drm_i915_private *dev_priv) |
c67a470b PZ |
8267 | { |
8268 | struct drm_device *dev = dev_priv->dev; | |
8269 | uint32_t val; | |
8270 | ||
c67a470b PZ |
8271 | DRM_DEBUG_KMS("Disabling package C8+\n"); |
8272 | ||
8273 | hsw_restore_lcpll(dev_priv); | |
c67a470b PZ |
8274 | lpt_init_pch_refclk(dev); |
8275 | ||
8276 | if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) { | |
8277 | val = I915_READ(SOUTH_DSPCLK_GATE_D); | |
8278 | val |= PCH_LP_PARTITION_LEVEL_DISABLE; | |
8279 | I915_WRITE(SOUTH_DSPCLK_GATE_D, val); | |
8280 | } | |
8281 | ||
8282 | intel_prepare_ddi(dev); | |
c67a470b PZ |
8283 | } |
8284 | ||
190f68c5 ACO |
8285 | static int haswell_crtc_compute_clock(struct intel_crtc *crtc, |
8286 | struct intel_crtc_state *crtc_state) | |
09b4ddf9 | 8287 | { |
190f68c5 | 8288 | if (!intel_ddi_pll_select(crtc, crtc_state)) |
6441ab5f | 8289 | return -EINVAL; |
716c2e55 | 8290 | |
c7653199 | 8291 | crtc->lowfreq_avail = false; |
644cef34 | 8292 | |
c8f7a0db | 8293 | return 0; |
79e53945 JB |
8294 | } |
8295 | ||
96b7dfb7 S |
8296 | static void skylake_get_ddi_pll(struct drm_i915_private *dev_priv, |
8297 | enum port port, | |
5cec258b | 8298 | struct intel_crtc_state *pipe_config) |
96b7dfb7 | 8299 | { |
3148ade7 | 8300 | u32 temp, dpll_ctl1; |
96b7dfb7 S |
8301 | |
8302 | temp = I915_READ(DPLL_CTRL2) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port); | |
8303 | pipe_config->ddi_pll_sel = temp >> (port * 3 + 1); | |
8304 | ||
8305 | switch (pipe_config->ddi_pll_sel) { | |
3148ade7 DL |
8306 | case SKL_DPLL0: |
8307 | /* | |
8308 | * On SKL the eDP DPLL (DPLL0 as we don't use SSC) is not part | |
8309 | * of the shared DPLL framework and thus needs to be read out | |
8310 | * separately | |
8311 | */ | |
8312 | dpll_ctl1 = I915_READ(DPLL_CTRL1); | |
8313 | pipe_config->dpll_hw_state.ctrl1 = dpll_ctl1 & 0x3f; | |
8314 | break; | |
96b7dfb7 S |
8315 | case SKL_DPLL1: |
8316 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL1; | |
8317 | break; | |
8318 | case SKL_DPLL2: | |
8319 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL2; | |
8320 | break; | |
8321 | case SKL_DPLL3: | |
8322 | pipe_config->shared_dpll = DPLL_ID_SKL_DPLL3; | |
8323 | break; | |
96b7dfb7 S |
8324 | } |
8325 | } | |
8326 | ||
7d2c8175 DL |
8327 | static void haswell_get_ddi_pll(struct drm_i915_private *dev_priv, |
8328 | enum port port, | |
5cec258b | 8329 | struct intel_crtc_state *pipe_config) |
7d2c8175 DL |
8330 | { |
8331 | pipe_config->ddi_pll_sel = I915_READ(PORT_CLK_SEL(port)); | |
8332 | ||
8333 | switch (pipe_config->ddi_pll_sel) { | |
8334 | case PORT_CLK_SEL_WRPLL1: | |
8335 | pipe_config->shared_dpll = DPLL_ID_WRPLL1; | |
8336 | break; | |
8337 | case PORT_CLK_SEL_WRPLL2: | |
8338 | pipe_config->shared_dpll = DPLL_ID_WRPLL2; | |
8339 | break; | |
8340 | } | |
8341 | } | |
8342 | ||
26804afd | 8343 | static void haswell_get_ddi_port_state(struct intel_crtc *crtc, |
5cec258b | 8344 | struct intel_crtc_state *pipe_config) |
26804afd DV |
8345 | { |
8346 | struct drm_device *dev = crtc->base.dev; | |
8347 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d452c5b6 | 8348 | struct intel_shared_dpll *pll; |
26804afd DV |
8349 | enum port port; |
8350 | uint32_t tmp; | |
8351 | ||
8352 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder)); | |
8353 | ||
8354 | port = (tmp & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT; | |
8355 | ||
96b7dfb7 S |
8356 | if (IS_SKYLAKE(dev)) |
8357 | skylake_get_ddi_pll(dev_priv, port, pipe_config); | |
8358 | else | |
8359 | haswell_get_ddi_pll(dev_priv, port, pipe_config); | |
9cd86933 | 8360 | |
d452c5b6 DV |
8361 | if (pipe_config->shared_dpll >= 0) { |
8362 | pll = &dev_priv->shared_dplls[pipe_config->shared_dpll]; | |
8363 | ||
8364 | WARN_ON(!pll->get_hw_state(dev_priv, pll, | |
8365 | &pipe_config->dpll_hw_state)); | |
8366 | } | |
8367 | ||
26804afd DV |
8368 | /* |
8369 | * Haswell has only FDI/PCH transcoder A. It is which is connected to | |
8370 | * DDI E. So just check whether this pipe is wired to DDI E and whether | |
8371 | * the PCH transcoder is on. | |
8372 | */ | |
ca370455 DL |
8373 | if (INTEL_INFO(dev)->gen < 9 && |
8374 | (port == PORT_E) && I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) { | |
26804afd DV |
8375 | pipe_config->has_pch_encoder = true; |
8376 | ||
8377 | tmp = I915_READ(FDI_RX_CTL(PIPE_A)); | |
8378 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
8379 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
8380 | ||
8381 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
8382 | } | |
8383 | } | |
8384 | ||
0e8ffe1b | 8385 | static bool haswell_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 8386 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
8387 | { |
8388 | struct drm_device *dev = crtc->base.dev; | |
8389 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa2fe9a | 8390 | enum intel_display_power_domain pfit_domain; |
0e8ffe1b DV |
8391 | uint32_t tmp; |
8392 | ||
f458ebbc | 8393 | if (!intel_display_power_is_enabled(dev_priv, |
b5482bd0 ID |
8394 | POWER_DOMAIN_PIPE(crtc->pipe))) |
8395 | return false; | |
8396 | ||
e143a21c | 8397 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
c0d43d62 DV |
8398 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
8399 | ||
eccb140b DV |
8400 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); |
8401 | if (tmp & TRANS_DDI_FUNC_ENABLE) { | |
8402 | enum pipe trans_edp_pipe; | |
8403 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { | |
8404 | default: | |
8405 | WARN(1, "unknown pipe linked to edp transcoder\n"); | |
8406 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
8407 | case TRANS_DDI_EDP_INPUT_A_ON: | |
8408 | trans_edp_pipe = PIPE_A; | |
8409 | break; | |
8410 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
8411 | trans_edp_pipe = PIPE_B; | |
8412 | break; | |
8413 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
8414 | trans_edp_pipe = PIPE_C; | |
8415 | break; | |
8416 | } | |
8417 | ||
8418 | if (trans_edp_pipe == crtc->pipe) | |
8419 | pipe_config->cpu_transcoder = TRANSCODER_EDP; | |
8420 | } | |
8421 | ||
f458ebbc | 8422 | if (!intel_display_power_is_enabled(dev_priv, |
eccb140b | 8423 | POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder))) |
2bfce950 PZ |
8424 | return false; |
8425 | ||
eccb140b | 8426 | tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder)); |
0e8ffe1b DV |
8427 | if (!(tmp & PIPECONF_ENABLE)) |
8428 | return false; | |
8429 | ||
26804afd | 8430 | haswell_get_ddi_port_state(crtc, pipe_config); |
627eb5a3 | 8431 | |
1bd1bd80 DV |
8432 | intel_get_pipe_timings(crtc, pipe_config); |
8433 | ||
2fa2fe9a | 8434 | pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe); |
bd2e244f JB |
8435 | if (intel_display_power_is_enabled(dev_priv, pfit_domain)) { |
8436 | if (IS_SKYLAKE(dev)) | |
8437 | skylake_get_pfit_config(crtc, pipe_config); | |
8438 | else | |
8439 | ironlake_get_pfit_config(crtc, pipe_config); | |
8440 | } | |
88adfff1 | 8441 | |
e59150dc JB |
8442 | if (IS_HASWELL(dev)) |
8443 | pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) && | |
8444 | (I915_READ(IPS_CTL) & IPS_ENABLE); | |
42db64ef | 8445 | |
ebb69c95 CT |
8446 | if (pipe_config->cpu_transcoder != TRANSCODER_EDP) { |
8447 | pipe_config->pixel_multiplier = | |
8448 | I915_READ(PIPE_MULT(pipe_config->cpu_transcoder)) + 1; | |
8449 | } else { | |
8450 | pipe_config->pixel_multiplier = 1; | |
8451 | } | |
6c49f241 | 8452 | |
0e8ffe1b DV |
8453 | return true; |
8454 | } | |
8455 | ||
560b85bb CW |
8456 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
8457 | { | |
8458 | struct drm_device *dev = crtc->dev; | |
8459 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8460 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
dc41c154 | 8461 | uint32_t cntl = 0, size = 0; |
560b85bb | 8462 | |
dc41c154 | 8463 | if (base) { |
3dd512fb MR |
8464 | unsigned int width = intel_crtc->base.cursor->state->crtc_w; |
8465 | unsigned int height = intel_crtc->base.cursor->state->crtc_h; | |
dc41c154 VS |
8466 | unsigned int stride = roundup_pow_of_two(width) * 4; |
8467 | ||
8468 | switch (stride) { | |
8469 | default: | |
8470 | WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n", | |
8471 | width, stride); | |
8472 | stride = 256; | |
8473 | /* fallthrough */ | |
8474 | case 256: | |
8475 | case 512: | |
8476 | case 1024: | |
8477 | case 2048: | |
8478 | break; | |
4b0e333e CW |
8479 | } |
8480 | ||
dc41c154 VS |
8481 | cntl |= CURSOR_ENABLE | |
8482 | CURSOR_GAMMA_ENABLE | | |
8483 | CURSOR_FORMAT_ARGB | | |
8484 | CURSOR_STRIDE(stride); | |
8485 | ||
8486 | size = (height << 12) | width; | |
4b0e333e | 8487 | } |
560b85bb | 8488 | |
dc41c154 VS |
8489 | if (intel_crtc->cursor_cntl != 0 && |
8490 | (intel_crtc->cursor_base != base || | |
8491 | intel_crtc->cursor_size != size || | |
8492 | intel_crtc->cursor_cntl != cntl)) { | |
8493 | /* On these chipsets we can only modify the base/size/stride | |
8494 | * whilst the cursor is disabled. | |
8495 | */ | |
8496 | I915_WRITE(_CURACNTR, 0); | |
4b0e333e | 8497 | POSTING_READ(_CURACNTR); |
dc41c154 | 8498 | intel_crtc->cursor_cntl = 0; |
4b0e333e | 8499 | } |
560b85bb | 8500 | |
99d1f387 | 8501 | if (intel_crtc->cursor_base != base) { |
9db4a9c7 | 8502 | I915_WRITE(_CURABASE, base); |
99d1f387 VS |
8503 | intel_crtc->cursor_base = base; |
8504 | } | |
4726e0b0 | 8505 | |
dc41c154 VS |
8506 | if (intel_crtc->cursor_size != size) { |
8507 | I915_WRITE(CURSIZE, size); | |
8508 | intel_crtc->cursor_size = size; | |
4b0e333e | 8509 | } |
560b85bb | 8510 | |
4b0e333e | 8511 | if (intel_crtc->cursor_cntl != cntl) { |
4b0e333e CW |
8512 | I915_WRITE(_CURACNTR, cntl); |
8513 | POSTING_READ(_CURACNTR); | |
4b0e333e | 8514 | intel_crtc->cursor_cntl = cntl; |
560b85bb | 8515 | } |
560b85bb CW |
8516 | } |
8517 | ||
560b85bb | 8518 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) |
65a21cd6 JB |
8519 | { |
8520 | struct drm_device *dev = crtc->dev; | |
8521 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8522 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8523 | int pipe = intel_crtc->pipe; | |
4b0e333e CW |
8524 | uint32_t cntl; |
8525 | ||
8526 | cntl = 0; | |
8527 | if (base) { | |
8528 | cntl = MCURSOR_GAMMA_ENABLE; | |
3dd512fb | 8529 | switch (intel_crtc->base.cursor->state->crtc_w) { |
4726e0b0 SK |
8530 | case 64: |
8531 | cntl |= CURSOR_MODE_64_ARGB_AX; | |
8532 | break; | |
8533 | case 128: | |
8534 | cntl |= CURSOR_MODE_128_ARGB_AX; | |
8535 | break; | |
8536 | case 256: | |
8537 | cntl |= CURSOR_MODE_256_ARGB_AX; | |
8538 | break; | |
8539 | default: | |
3dd512fb | 8540 | MISSING_CASE(intel_crtc->base.cursor->state->crtc_w); |
4726e0b0 | 8541 | return; |
65a21cd6 | 8542 | } |
4b0e333e | 8543 | cntl |= pipe << 28; /* Connect to correct pipe */ |
47bf17a7 VS |
8544 | |
8545 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) | |
8546 | cntl |= CURSOR_PIPE_CSC_ENABLE; | |
4b0e333e | 8547 | } |
65a21cd6 | 8548 | |
8e7d688b | 8549 | if (crtc->cursor->state->rotation == BIT(DRM_ROTATE_180)) |
4398ad45 VS |
8550 | cntl |= CURSOR_ROTATE_180; |
8551 | ||
4b0e333e CW |
8552 | if (intel_crtc->cursor_cntl != cntl) { |
8553 | I915_WRITE(CURCNTR(pipe), cntl); | |
8554 | POSTING_READ(CURCNTR(pipe)); | |
8555 | intel_crtc->cursor_cntl = cntl; | |
65a21cd6 | 8556 | } |
4b0e333e | 8557 | |
65a21cd6 | 8558 | /* and commit changes on next vblank */ |
5efb3e28 VS |
8559 | I915_WRITE(CURBASE(pipe), base); |
8560 | POSTING_READ(CURBASE(pipe)); | |
99d1f387 VS |
8561 | |
8562 | intel_crtc->cursor_base = base; | |
65a21cd6 JB |
8563 | } |
8564 | ||
cda4b7d3 | 8565 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
8566 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
8567 | bool on) | |
cda4b7d3 CW |
8568 | { |
8569 | struct drm_device *dev = crtc->dev; | |
8570 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8571 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8572 | int pipe = intel_crtc->pipe; | |
3d7d6510 MR |
8573 | int x = crtc->cursor_x; |
8574 | int y = crtc->cursor_y; | |
d6e4db15 | 8575 | u32 base = 0, pos = 0; |
cda4b7d3 | 8576 | |
d6e4db15 | 8577 | if (on) |
cda4b7d3 | 8578 | base = intel_crtc->cursor_addr; |
cda4b7d3 | 8579 | |
6e3c9717 | 8580 | if (x >= intel_crtc->config->pipe_src_w) |
d6e4db15 VS |
8581 | base = 0; |
8582 | ||
6e3c9717 | 8583 | if (y >= intel_crtc->config->pipe_src_h) |
cda4b7d3 CW |
8584 | base = 0; |
8585 | ||
8586 | if (x < 0) { | |
3dd512fb | 8587 | if (x + intel_crtc->base.cursor->state->crtc_w <= 0) |
cda4b7d3 CW |
8588 | base = 0; |
8589 | ||
8590 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
8591 | x = -x; | |
8592 | } | |
8593 | pos |= x << CURSOR_X_SHIFT; | |
8594 | ||
8595 | if (y < 0) { | |
3dd512fb | 8596 | if (y + intel_crtc->base.cursor->state->crtc_h <= 0) |
cda4b7d3 CW |
8597 | base = 0; |
8598 | ||
8599 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
8600 | y = -y; | |
8601 | } | |
8602 | pos |= y << CURSOR_Y_SHIFT; | |
8603 | ||
4b0e333e | 8604 | if (base == 0 && intel_crtc->cursor_base == 0) |
cda4b7d3 CW |
8605 | return; |
8606 | ||
5efb3e28 VS |
8607 | I915_WRITE(CURPOS(pipe), pos); |
8608 | ||
4398ad45 VS |
8609 | /* ILK+ do this automagically */ |
8610 | if (HAS_GMCH_DISPLAY(dev) && | |
8e7d688b | 8611 | crtc->cursor->state->rotation == BIT(DRM_ROTATE_180)) { |
3dd512fb MR |
8612 | base += (intel_crtc->base.cursor->state->crtc_h * |
8613 | intel_crtc->base.cursor->state->crtc_w - 1) * 4; | |
4398ad45 VS |
8614 | } |
8615 | ||
8ac54669 | 8616 | if (IS_845G(dev) || IS_I865G(dev)) |
5efb3e28 VS |
8617 | i845_update_cursor(crtc, base); |
8618 | else | |
8619 | i9xx_update_cursor(crtc, base); | |
cda4b7d3 CW |
8620 | } |
8621 | ||
dc41c154 VS |
8622 | static bool cursor_size_ok(struct drm_device *dev, |
8623 | uint32_t width, uint32_t height) | |
8624 | { | |
8625 | if (width == 0 || height == 0) | |
8626 | return false; | |
8627 | ||
8628 | /* | |
8629 | * 845g/865g are special in that they are only limited by | |
8630 | * the width of their cursors, the height is arbitrary up to | |
8631 | * the precision of the register. Everything else requires | |
8632 | * square cursors, limited to a few power-of-two sizes. | |
8633 | */ | |
8634 | if (IS_845G(dev) || IS_I865G(dev)) { | |
8635 | if ((width & 63) != 0) | |
8636 | return false; | |
8637 | ||
8638 | if (width > (IS_845G(dev) ? 64 : 512)) | |
8639 | return false; | |
8640 | ||
8641 | if (height > 1023) | |
8642 | return false; | |
8643 | } else { | |
8644 | switch (width | height) { | |
8645 | case 256: | |
8646 | case 128: | |
8647 | if (IS_GEN2(dev)) | |
8648 | return false; | |
8649 | case 64: | |
8650 | break; | |
8651 | default: | |
8652 | return false; | |
8653 | } | |
8654 | } | |
8655 | ||
8656 | return true; | |
8657 | } | |
8658 | ||
79e53945 | 8659 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 8660 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 8661 | { |
7203425a | 8662 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 8663 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 8664 | |
7203425a | 8665 | for (i = start; i < end; i++) { |
79e53945 JB |
8666 | intel_crtc->lut_r[i] = red[i] >> 8; |
8667 | intel_crtc->lut_g[i] = green[i] >> 8; | |
8668 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
8669 | } | |
8670 | ||
8671 | intel_crtc_load_lut(crtc); | |
8672 | } | |
8673 | ||
79e53945 JB |
8674 | /* VESA 640x480x72Hz mode to set on the pipe */ |
8675 | static struct drm_display_mode load_detect_mode = { | |
8676 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
8677 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
8678 | }; | |
8679 | ||
a8bb6818 DV |
8680 | struct drm_framebuffer * |
8681 | __intel_framebuffer_create(struct drm_device *dev, | |
8682 | struct drm_mode_fb_cmd2 *mode_cmd, | |
8683 | struct drm_i915_gem_object *obj) | |
d2dff872 CW |
8684 | { |
8685 | struct intel_framebuffer *intel_fb; | |
8686 | int ret; | |
8687 | ||
8688 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
8689 | if (!intel_fb) { | |
6ccb81f2 | 8690 | drm_gem_object_unreference(&obj->base); |
d2dff872 CW |
8691 | return ERR_PTR(-ENOMEM); |
8692 | } | |
8693 | ||
8694 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
dd4916c5 DV |
8695 | if (ret) |
8696 | goto err; | |
d2dff872 CW |
8697 | |
8698 | return &intel_fb->base; | |
dd4916c5 | 8699 | err: |
6ccb81f2 | 8700 | drm_gem_object_unreference(&obj->base); |
dd4916c5 DV |
8701 | kfree(intel_fb); |
8702 | ||
8703 | return ERR_PTR(ret); | |
d2dff872 CW |
8704 | } |
8705 | ||
b5ea642a | 8706 | static struct drm_framebuffer * |
a8bb6818 DV |
8707 | intel_framebuffer_create(struct drm_device *dev, |
8708 | struct drm_mode_fb_cmd2 *mode_cmd, | |
8709 | struct drm_i915_gem_object *obj) | |
8710 | { | |
8711 | struct drm_framebuffer *fb; | |
8712 | int ret; | |
8713 | ||
8714 | ret = i915_mutex_lock_interruptible(dev); | |
8715 | if (ret) | |
8716 | return ERR_PTR(ret); | |
8717 | fb = __intel_framebuffer_create(dev, mode_cmd, obj); | |
8718 | mutex_unlock(&dev->struct_mutex); | |
8719 | ||
8720 | return fb; | |
8721 | } | |
8722 | ||
d2dff872 CW |
8723 | static u32 |
8724 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
8725 | { | |
8726 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
8727 | return ALIGN(pitch, 64); | |
8728 | } | |
8729 | ||
8730 | static u32 | |
8731 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
8732 | { | |
8733 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
1267a26b | 8734 | return PAGE_ALIGN(pitch * mode->vdisplay); |
d2dff872 CW |
8735 | } |
8736 | ||
8737 | static struct drm_framebuffer * | |
8738 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
8739 | struct drm_display_mode *mode, | |
8740 | int depth, int bpp) | |
8741 | { | |
8742 | struct drm_i915_gem_object *obj; | |
0fed39bd | 8743 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; |
d2dff872 CW |
8744 | |
8745 | obj = i915_gem_alloc_object(dev, | |
8746 | intel_framebuffer_size_for_mode(mode, bpp)); | |
8747 | if (obj == NULL) | |
8748 | return ERR_PTR(-ENOMEM); | |
8749 | ||
8750 | mode_cmd.width = mode->hdisplay; | |
8751 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
8752 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
8753 | bpp); | |
5ca0c34a | 8754 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
8755 | |
8756 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
8757 | } | |
8758 | ||
8759 | static struct drm_framebuffer * | |
8760 | mode_fits_in_fbdev(struct drm_device *dev, | |
8761 | struct drm_display_mode *mode) | |
8762 | { | |
4520f53a | 8763 | #ifdef CONFIG_DRM_I915_FBDEV |
d2dff872 CW |
8764 | struct drm_i915_private *dev_priv = dev->dev_private; |
8765 | struct drm_i915_gem_object *obj; | |
8766 | struct drm_framebuffer *fb; | |
8767 | ||
4c0e5528 | 8768 | if (!dev_priv->fbdev) |
d2dff872 CW |
8769 | return NULL; |
8770 | ||
4c0e5528 | 8771 | if (!dev_priv->fbdev->fb) |
d2dff872 CW |
8772 | return NULL; |
8773 | ||
4c0e5528 DV |
8774 | obj = dev_priv->fbdev->fb->obj; |
8775 | BUG_ON(!obj); | |
8776 | ||
8bcd4553 | 8777 | fb = &dev_priv->fbdev->fb->base; |
01f2c773 VS |
8778 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
8779 | fb->bits_per_pixel)) | |
d2dff872 CW |
8780 | return NULL; |
8781 | ||
01f2c773 | 8782 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
8783 | return NULL; |
8784 | ||
8785 | return fb; | |
4520f53a DV |
8786 | #else |
8787 | return NULL; | |
8788 | #endif | |
d2dff872 CW |
8789 | } |
8790 | ||
d2434ab7 | 8791 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 8792 | struct drm_display_mode *mode, |
51fd371b RC |
8793 | struct intel_load_detect_pipe *old, |
8794 | struct drm_modeset_acquire_ctx *ctx) | |
79e53945 JB |
8795 | { |
8796 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
8797 | struct intel_encoder *intel_encoder = |
8798 | intel_attached_encoder(connector); | |
79e53945 | 8799 | struct drm_crtc *possible_crtc; |
4ef69c7a | 8800 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
8801 | struct drm_crtc *crtc = NULL; |
8802 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 8803 | struct drm_framebuffer *fb; |
51fd371b RC |
8804 | struct drm_mode_config *config = &dev->mode_config; |
8805 | int ret, i = -1; | |
79e53945 | 8806 | |
d2dff872 | 8807 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
c23cc417 | 8808 | connector->base.id, connector->name, |
8e329a03 | 8809 | encoder->base.id, encoder->name); |
d2dff872 | 8810 | |
51fd371b RC |
8811 | retry: |
8812 | ret = drm_modeset_lock(&config->connection_mutex, ctx); | |
8813 | if (ret) | |
8814 | goto fail_unlock; | |
6e9f798d | 8815 | |
79e53945 JB |
8816 | /* |
8817 | * Algorithm gets a little messy: | |
7a5e4805 | 8818 | * |
79e53945 JB |
8819 | * - if the connector already has an assigned crtc, use it (but make |
8820 | * sure it's on first) | |
7a5e4805 | 8821 | * |
79e53945 JB |
8822 | * - try to find the first unused crtc that can drive this connector, |
8823 | * and use that if we find one | |
79e53945 JB |
8824 | */ |
8825 | ||
8826 | /* See if we already have a CRTC for this connector */ | |
8827 | if (encoder->crtc) { | |
8828 | crtc = encoder->crtc; | |
8261b191 | 8829 | |
51fd371b | 8830 | ret = drm_modeset_lock(&crtc->mutex, ctx); |
4d02e2de DV |
8831 | if (ret) |
8832 | goto fail_unlock; | |
8833 | ret = drm_modeset_lock(&crtc->primary->mutex, ctx); | |
51fd371b RC |
8834 | if (ret) |
8835 | goto fail_unlock; | |
7b24056b | 8836 | |
24218aac | 8837 | old->dpms_mode = connector->dpms; |
8261b191 CW |
8838 | old->load_detect_temp = false; |
8839 | ||
8840 | /* Make sure the crtc and connector are running */ | |
24218aac DV |
8841 | if (connector->dpms != DRM_MODE_DPMS_ON) |
8842 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); | |
8261b191 | 8843 | |
7173188d | 8844 | return true; |
79e53945 JB |
8845 | } |
8846 | ||
8847 | /* Find an unused one (if possible) */ | |
70e1e0ec | 8848 | for_each_crtc(dev, possible_crtc) { |
79e53945 JB |
8849 | i++; |
8850 | if (!(encoder->possible_crtcs & (1 << i))) | |
8851 | continue; | |
83d65738 | 8852 | if (possible_crtc->state->enable) |
a459249c VS |
8853 | continue; |
8854 | /* This can occur when applying the pipe A quirk on resume. */ | |
8855 | if (to_intel_crtc(possible_crtc)->new_enabled) | |
8856 | continue; | |
8857 | ||
8858 | crtc = possible_crtc; | |
8859 | break; | |
79e53945 JB |
8860 | } |
8861 | ||
8862 | /* | |
8863 | * If we didn't find an unused CRTC, don't use any. | |
8864 | */ | |
8865 | if (!crtc) { | |
7173188d | 8866 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
51fd371b | 8867 | goto fail_unlock; |
79e53945 JB |
8868 | } |
8869 | ||
51fd371b RC |
8870 | ret = drm_modeset_lock(&crtc->mutex, ctx); |
8871 | if (ret) | |
4d02e2de DV |
8872 | goto fail_unlock; |
8873 | ret = drm_modeset_lock(&crtc->primary->mutex, ctx); | |
8874 | if (ret) | |
51fd371b | 8875 | goto fail_unlock; |
fc303101 DV |
8876 | intel_encoder->new_crtc = to_intel_crtc(crtc); |
8877 | to_intel_connector(connector)->new_encoder = intel_encoder; | |
79e53945 JB |
8878 | |
8879 | intel_crtc = to_intel_crtc(crtc); | |
412b61d8 | 8880 | intel_crtc->new_enabled = true; |
6e3c9717 | 8881 | intel_crtc->new_config = intel_crtc->config; |
24218aac | 8882 | old->dpms_mode = connector->dpms; |
8261b191 | 8883 | old->load_detect_temp = true; |
d2dff872 | 8884 | old->release_fb = NULL; |
79e53945 | 8885 | |
6492711d CW |
8886 | if (!mode) |
8887 | mode = &load_detect_mode; | |
79e53945 | 8888 | |
d2dff872 CW |
8889 | /* We need a framebuffer large enough to accommodate all accesses |
8890 | * that the plane may generate whilst we perform load detection. | |
8891 | * We can not rely on the fbcon either being present (we get called | |
8892 | * during its initialisation to detect all boot displays, or it may | |
8893 | * not even exist) or that it is large enough to satisfy the | |
8894 | * requested mode. | |
8895 | */ | |
94352cf9 DV |
8896 | fb = mode_fits_in_fbdev(dev, mode); |
8897 | if (fb == NULL) { | |
d2dff872 | 8898 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 DV |
8899 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
8900 | old->release_fb = fb; | |
d2dff872 CW |
8901 | } else |
8902 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 8903 | if (IS_ERR(fb)) { |
d2dff872 | 8904 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
412b61d8 | 8905 | goto fail; |
79e53945 | 8906 | } |
79e53945 | 8907 | |
c0c36b94 | 8908 | if (intel_set_mode(crtc, mode, 0, 0, fb)) { |
6492711d | 8909 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
8910 | if (old->release_fb) |
8911 | old->release_fb->funcs->destroy(old->release_fb); | |
412b61d8 | 8912 | goto fail; |
79e53945 | 8913 | } |
9128b040 | 8914 | crtc->primary->crtc = crtc; |
7173188d | 8915 | |
79e53945 | 8916 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 8917 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
7173188d | 8918 | return true; |
412b61d8 VS |
8919 | |
8920 | fail: | |
83d65738 | 8921 | intel_crtc->new_enabled = crtc->state->enable; |
412b61d8 | 8922 | if (intel_crtc->new_enabled) |
6e3c9717 | 8923 | intel_crtc->new_config = intel_crtc->config; |
412b61d8 VS |
8924 | else |
8925 | intel_crtc->new_config = NULL; | |
51fd371b RC |
8926 | fail_unlock: |
8927 | if (ret == -EDEADLK) { | |
8928 | drm_modeset_backoff(ctx); | |
8929 | goto retry; | |
8930 | } | |
8931 | ||
412b61d8 | 8932 | return false; |
79e53945 JB |
8933 | } |
8934 | ||
d2434ab7 | 8935 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
208bf9fd | 8936 | struct intel_load_detect_pipe *old) |
79e53945 | 8937 | { |
d2434ab7 DV |
8938 | struct intel_encoder *intel_encoder = |
8939 | intel_attached_encoder(connector); | |
4ef69c7a | 8940 | struct drm_encoder *encoder = &intel_encoder->base; |
7b24056b | 8941 | struct drm_crtc *crtc = encoder->crtc; |
412b61d8 | 8942 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 8943 | |
d2dff872 | 8944 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
c23cc417 | 8945 | connector->base.id, connector->name, |
8e329a03 | 8946 | encoder->base.id, encoder->name); |
d2dff872 | 8947 | |
8261b191 | 8948 | if (old->load_detect_temp) { |
fc303101 DV |
8949 | to_intel_connector(connector)->new_encoder = NULL; |
8950 | intel_encoder->new_crtc = NULL; | |
412b61d8 VS |
8951 | intel_crtc->new_enabled = false; |
8952 | intel_crtc->new_config = NULL; | |
fc303101 | 8953 | intel_set_mode(crtc, NULL, 0, 0, NULL); |
d2dff872 | 8954 | |
36206361 DV |
8955 | if (old->release_fb) { |
8956 | drm_framebuffer_unregister_private(old->release_fb); | |
8957 | drm_framebuffer_unreference(old->release_fb); | |
8958 | } | |
d2dff872 | 8959 | |
0622a53c | 8960 | return; |
79e53945 JB |
8961 | } |
8962 | ||
c751ce4f | 8963 | /* Switch crtc and encoder back off if necessary */ |
24218aac DV |
8964 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
8965 | connector->funcs->dpms(connector, old->dpms_mode); | |
79e53945 JB |
8966 | } |
8967 | ||
da4a1efa | 8968 | static int i9xx_pll_refclk(struct drm_device *dev, |
5cec258b | 8969 | const struct intel_crtc_state *pipe_config) |
da4a1efa VS |
8970 | { |
8971 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8972 | u32 dpll = pipe_config->dpll_hw_state.dpll; | |
8973 | ||
8974 | if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN) | |
e91e941b | 8975 | return dev_priv->vbt.lvds_ssc_freq; |
da4a1efa VS |
8976 | else if (HAS_PCH_SPLIT(dev)) |
8977 | return 120000; | |
8978 | else if (!IS_GEN2(dev)) | |
8979 | return 96000; | |
8980 | else | |
8981 | return 48000; | |
8982 | } | |
8983 | ||
79e53945 | 8984 | /* Returns the clock of the currently programmed mode of the given pipe. */ |
f1f644dc | 8985 | static void i9xx_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 8986 | struct intel_crtc_state *pipe_config) |
79e53945 | 8987 | { |
f1f644dc | 8988 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 8989 | struct drm_i915_private *dev_priv = dev->dev_private; |
f1f644dc | 8990 | int pipe = pipe_config->cpu_transcoder; |
293623f7 | 8991 | u32 dpll = pipe_config->dpll_hw_state.dpll; |
79e53945 JB |
8992 | u32 fp; |
8993 | intel_clock_t clock; | |
da4a1efa | 8994 | int refclk = i9xx_pll_refclk(dev, pipe_config); |
79e53945 JB |
8995 | |
8996 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
293623f7 | 8997 | fp = pipe_config->dpll_hw_state.fp0; |
79e53945 | 8998 | else |
293623f7 | 8999 | fp = pipe_config->dpll_hw_state.fp1; |
79e53945 JB |
9000 | |
9001 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
9002 | if (IS_PINEVIEW(dev)) { |
9003 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
9004 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
9005 | } else { |
9006 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
9007 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
9008 | } | |
9009 | ||
a6c45cf0 | 9010 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
9011 | if (IS_PINEVIEW(dev)) |
9012 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
9013 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
9014 | else |
9015 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
9016 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
9017 | ||
9018 | switch (dpll & DPLL_MODE_MASK) { | |
9019 | case DPLLB_MODE_DAC_SERIAL: | |
9020 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
9021 | 5 : 10; | |
9022 | break; | |
9023 | case DPLLB_MODE_LVDS: | |
9024 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
9025 | 7 : 14; | |
9026 | break; | |
9027 | default: | |
28c97730 | 9028 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 | 9029 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
f1f644dc | 9030 | return; |
79e53945 JB |
9031 | } |
9032 | ||
ac58c3f0 | 9033 | if (IS_PINEVIEW(dev)) |
da4a1efa | 9034 | pineview_clock(refclk, &clock); |
ac58c3f0 | 9035 | else |
da4a1efa | 9036 | i9xx_clock(refclk, &clock); |
79e53945 | 9037 | } else { |
0fb58223 | 9038 | u32 lvds = IS_I830(dev) ? 0 : I915_READ(LVDS); |
b1c560d1 | 9039 | bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN); |
79e53945 JB |
9040 | |
9041 | if (is_lvds) { | |
9042 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
9043 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
b1c560d1 VS |
9044 | |
9045 | if (lvds & LVDS_CLKB_POWER_UP) | |
9046 | clock.p2 = 7; | |
9047 | else | |
9048 | clock.p2 = 14; | |
79e53945 JB |
9049 | } else { |
9050 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
9051 | clock.p1 = 2; | |
9052 | else { | |
9053 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
9054 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
9055 | } | |
9056 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
9057 | clock.p2 = 4; | |
9058 | else | |
9059 | clock.p2 = 2; | |
79e53945 | 9060 | } |
da4a1efa VS |
9061 | |
9062 | i9xx_clock(refclk, &clock); | |
79e53945 JB |
9063 | } |
9064 | ||
18442d08 VS |
9065 | /* |
9066 | * This value includes pixel_multiplier. We will use | |
241bfc38 | 9067 | * port_clock to compute adjusted_mode.crtc_clock in the |
18442d08 VS |
9068 | * encoder's get_config() function. |
9069 | */ | |
9070 | pipe_config->port_clock = clock.dot; | |
f1f644dc JB |
9071 | } |
9072 | ||
6878da05 VS |
9073 | int intel_dotclock_calculate(int link_freq, |
9074 | const struct intel_link_m_n *m_n) | |
f1f644dc | 9075 | { |
f1f644dc JB |
9076 | /* |
9077 | * The calculation for the data clock is: | |
1041a02f | 9078 | * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp |
f1f644dc | 9079 | * But we want to avoid losing precison if possible, so: |
1041a02f | 9080 | * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp)) |
f1f644dc JB |
9081 | * |
9082 | * and the link clock is simpler: | |
1041a02f | 9083 | * link_clock = (m * link_clock) / n |
f1f644dc JB |
9084 | */ |
9085 | ||
6878da05 VS |
9086 | if (!m_n->link_n) |
9087 | return 0; | |
f1f644dc | 9088 | |
6878da05 VS |
9089 | return div_u64((u64)m_n->link_m * link_freq, m_n->link_n); |
9090 | } | |
f1f644dc | 9091 | |
18442d08 | 9092 | static void ironlake_pch_clock_get(struct intel_crtc *crtc, |
5cec258b | 9093 | struct intel_crtc_state *pipe_config) |
6878da05 VS |
9094 | { |
9095 | struct drm_device *dev = crtc->base.dev; | |
79e53945 | 9096 | |
18442d08 VS |
9097 | /* read out port_clock from the DPLL */ |
9098 | i9xx_crtc_clock_get(crtc, pipe_config); | |
f1f644dc | 9099 | |
f1f644dc | 9100 | /* |
18442d08 | 9101 | * This value does not include pixel_multiplier. |
241bfc38 | 9102 | * We will check that port_clock and adjusted_mode.crtc_clock |
18442d08 VS |
9103 | * agree once we know their relationship in the encoder's |
9104 | * get_config() function. | |
79e53945 | 9105 | */ |
2d112de7 | 9106 | pipe_config->base.adjusted_mode.crtc_clock = |
18442d08 VS |
9107 | intel_dotclock_calculate(intel_fdi_link_freq(dev) * 10000, |
9108 | &pipe_config->fdi_m_n); | |
79e53945 JB |
9109 | } |
9110 | ||
9111 | /** Returns the currently programmed mode of the given pipe. */ | |
9112 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
9113 | struct drm_crtc *crtc) | |
9114 | { | |
548f245b | 9115 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 9116 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6e3c9717 | 9117 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
79e53945 | 9118 | struct drm_display_mode *mode; |
5cec258b | 9119 | struct intel_crtc_state pipe_config; |
fe2b8f9d PZ |
9120 | int htot = I915_READ(HTOTAL(cpu_transcoder)); |
9121 | int hsync = I915_READ(HSYNC(cpu_transcoder)); | |
9122 | int vtot = I915_READ(VTOTAL(cpu_transcoder)); | |
9123 | int vsync = I915_READ(VSYNC(cpu_transcoder)); | |
293623f7 | 9124 | enum pipe pipe = intel_crtc->pipe; |
79e53945 JB |
9125 | |
9126 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
9127 | if (!mode) | |
9128 | return NULL; | |
9129 | ||
f1f644dc JB |
9130 | /* |
9131 | * Construct a pipe_config sufficient for getting the clock info | |
9132 | * back out of crtc_clock_get. | |
9133 | * | |
9134 | * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need | |
9135 | * to use a real value here instead. | |
9136 | */ | |
293623f7 | 9137 | pipe_config.cpu_transcoder = (enum transcoder) pipe; |
f1f644dc | 9138 | pipe_config.pixel_multiplier = 1; |
293623f7 VS |
9139 | pipe_config.dpll_hw_state.dpll = I915_READ(DPLL(pipe)); |
9140 | pipe_config.dpll_hw_state.fp0 = I915_READ(FP0(pipe)); | |
9141 | pipe_config.dpll_hw_state.fp1 = I915_READ(FP1(pipe)); | |
f1f644dc JB |
9142 | i9xx_crtc_clock_get(intel_crtc, &pipe_config); |
9143 | ||
773ae034 | 9144 | mode->clock = pipe_config.port_clock / pipe_config.pixel_multiplier; |
79e53945 JB |
9145 | mode->hdisplay = (htot & 0xffff) + 1; |
9146 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
9147 | mode->hsync_start = (hsync & 0xffff) + 1; | |
9148 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
9149 | mode->vdisplay = (vtot & 0xffff) + 1; | |
9150 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
9151 | mode->vsync_start = (vsync & 0xffff) + 1; | |
9152 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
9153 | ||
9154 | drm_mode_set_name(mode); | |
79e53945 JB |
9155 | |
9156 | return mode; | |
9157 | } | |
9158 | ||
652c393a JB |
9159 | static void intel_decrease_pllclock(struct drm_crtc *crtc) |
9160 | { | |
9161 | struct drm_device *dev = crtc->dev; | |
fbee40df | 9162 | struct drm_i915_private *dev_priv = dev->dev_private; |
652c393a | 9163 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
652c393a | 9164 | |
baff296c | 9165 | if (!HAS_GMCH_DISPLAY(dev)) |
652c393a JB |
9166 | return; |
9167 | ||
9168 | if (!dev_priv->lvds_downclock_avail) | |
9169 | return; | |
9170 | ||
9171 | /* | |
9172 | * Since this is called by a timer, we should never get here in | |
9173 | * the manual case. | |
9174 | */ | |
9175 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
dc257cf1 DV |
9176 | int pipe = intel_crtc->pipe; |
9177 | int dpll_reg = DPLL(pipe); | |
9178 | int dpll; | |
f6e5b160 | 9179 | |
44d98a61 | 9180 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a | 9181 | |
8ac5a6d5 | 9182 | assert_panel_unlocked(dev_priv, pipe); |
652c393a | 9183 | |
dc257cf1 | 9184 | dpll = I915_READ(dpll_reg); |
652c393a JB |
9185 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
9186 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 9187 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
9188 | dpll = I915_READ(dpll_reg); |
9189 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 9190 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
9191 | } |
9192 | ||
9193 | } | |
9194 | ||
f047e395 CW |
9195 | void intel_mark_busy(struct drm_device *dev) |
9196 | { | |
c67a470b PZ |
9197 | struct drm_i915_private *dev_priv = dev->dev_private; |
9198 | ||
f62a0076 CW |
9199 | if (dev_priv->mm.busy) |
9200 | return; | |
9201 | ||
43694d69 | 9202 | intel_runtime_pm_get(dev_priv); |
c67a470b | 9203 | i915_update_gfx_val(dev_priv); |
f62a0076 | 9204 | dev_priv->mm.busy = true; |
f047e395 CW |
9205 | } |
9206 | ||
9207 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 9208 | { |
c67a470b | 9209 | struct drm_i915_private *dev_priv = dev->dev_private; |
652c393a | 9210 | struct drm_crtc *crtc; |
652c393a | 9211 | |
f62a0076 CW |
9212 | if (!dev_priv->mm.busy) |
9213 | return; | |
9214 | ||
9215 | dev_priv->mm.busy = false; | |
9216 | ||
d330a953 | 9217 | if (!i915.powersave) |
bb4cdd53 | 9218 | goto out; |
652c393a | 9219 | |
70e1e0ec | 9220 | for_each_crtc(dev, crtc) { |
f4510a27 | 9221 | if (!crtc->primary->fb) |
652c393a JB |
9222 | continue; |
9223 | ||
725a5b54 | 9224 | intel_decrease_pllclock(crtc); |
652c393a | 9225 | } |
b29c19b6 | 9226 | |
3d13ef2e | 9227 | if (INTEL_INFO(dev)->gen >= 6) |
b29c19b6 | 9228 | gen6_rps_idle(dev->dev_private); |
bb4cdd53 PZ |
9229 | |
9230 | out: | |
43694d69 | 9231 | intel_runtime_pm_put(dev_priv); |
652c393a JB |
9232 | } |
9233 | ||
f5de6e07 ACO |
9234 | static void intel_crtc_set_state(struct intel_crtc *crtc, |
9235 | struct intel_crtc_state *crtc_state) | |
9236 | { | |
9237 | kfree(crtc->config); | |
9238 | crtc->config = crtc_state; | |
16f3f658 | 9239 | crtc->base.state = &crtc_state->base; |
f5de6e07 ACO |
9240 | } |
9241 | ||
79e53945 JB |
9242 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
9243 | { | |
9244 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
9245 | struct drm_device *dev = crtc->dev; |
9246 | struct intel_unpin_work *work; | |
67e77c5a | 9247 | |
5e2d7afc | 9248 | spin_lock_irq(&dev->event_lock); |
67e77c5a DV |
9249 | work = intel_crtc->unpin_work; |
9250 | intel_crtc->unpin_work = NULL; | |
5e2d7afc | 9251 | spin_unlock_irq(&dev->event_lock); |
67e77c5a DV |
9252 | |
9253 | if (work) { | |
9254 | cancel_work_sync(&work->work); | |
9255 | kfree(work); | |
9256 | } | |
79e53945 | 9257 | |
f5de6e07 | 9258 | intel_crtc_set_state(intel_crtc, NULL); |
79e53945 | 9259 | drm_crtc_cleanup(crtc); |
67e77c5a | 9260 | |
79e53945 JB |
9261 | kfree(intel_crtc); |
9262 | } | |
9263 | ||
6b95a207 KH |
9264 | static void intel_unpin_work_fn(struct work_struct *__work) |
9265 | { | |
9266 | struct intel_unpin_work *work = | |
9267 | container_of(__work, struct intel_unpin_work, work); | |
b4a98e57 | 9268 | struct drm_device *dev = work->crtc->dev; |
f99d7069 | 9269 | enum pipe pipe = to_intel_crtc(work->crtc)->pipe; |
6b95a207 | 9270 | |
b4a98e57 | 9271 | mutex_lock(&dev->struct_mutex); |
ab8d6675 | 9272 | intel_unpin_fb_obj(intel_fb_obj(work->old_fb)); |
05394f39 | 9273 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
d9e86c0e | 9274 | |
7ff0ebcc | 9275 | intel_fbc_update(dev); |
f06cc1b9 JH |
9276 | |
9277 | if (work->flip_queued_req) | |
146d84f0 | 9278 | i915_gem_request_assign(&work->flip_queued_req, NULL); |
b4a98e57 CW |
9279 | mutex_unlock(&dev->struct_mutex); |
9280 | ||
f99d7069 | 9281 | intel_frontbuffer_flip_complete(dev, INTEL_FRONTBUFFER_PRIMARY(pipe)); |
89ed88ba | 9282 | drm_framebuffer_unreference(work->old_fb); |
f99d7069 | 9283 | |
b4a98e57 CW |
9284 | BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0); |
9285 | atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count); | |
9286 | ||
6b95a207 KH |
9287 | kfree(work); |
9288 | } | |
9289 | ||
1afe3e9d | 9290 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 9291 | struct drm_crtc *crtc) |
6b95a207 | 9292 | { |
6b95a207 KH |
9293 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
9294 | struct intel_unpin_work *work; | |
6b95a207 KH |
9295 | unsigned long flags; |
9296 | ||
9297 | /* Ignore early vblank irqs */ | |
9298 | if (intel_crtc == NULL) | |
9299 | return; | |
9300 | ||
f326038a DV |
9301 | /* |
9302 | * This is called both by irq handlers and the reset code (to complete | |
9303 | * lost pageflips) so needs the full irqsave spinlocks. | |
9304 | */ | |
6b95a207 KH |
9305 | spin_lock_irqsave(&dev->event_lock, flags); |
9306 | work = intel_crtc->unpin_work; | |
e7d841ca CW |
9307 | |
9308 | /* Ensure we don't miss a work->pending update ... */ | |
9309 | smp_rmb(); | |
9310 | ||
9311 | if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) { | |
6b95a207 KH |
9312 | spin_unlock_irqrestore(&dev->event_lock, flags); |
9313 | return; | |
9314 | } | |
9315 | ||
d6bbafa1 | 9316 | page_flip_completed(intel_crtc); |
0af7e4df | 9317 | |
6b95a207 | 9318 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6b95a207 KH |
9319 | } |
9320 | ||
1afe3e9d JB |
9321 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
9322 | { | |
fbee40df | 9323 | struct drm_i915_private *dev_priv = dev->dev_private; |
1afe3e9d JB |
9324 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
9325 | ||
49b14a5c | 9326 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
9327 | } |
9328 | ||
9329 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
9330 | { | |
fbee40df | 9331 | struct drm_i915_private *dev_priv = dev->dev_private; |
1afe3e9d JB |
9332 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; |
9333 | ||
49b14a5c | 9334 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
9335 | } |
9336 | ||
75f7f3ec VS |
9337 | /* Is 'a' after or equal to 'b'? */ |
9338 | static bool g4x_flip_count_after_eq(u32 a, u32 b) | |
9339 | { | |
9340 | return !((a - b) & 0x80000000); | |
9341 | } | |
9342 | ||
9343 | static bool page_flip_finished(struct intel_crtc *crtc) | |
9344 | { | |
9345 | struct drm_device *dev = crtc->base.dev; | |
9346 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9347 | ||
bdfa7542 VS |
9348 | if (i915_reset_in_progress(&dev_priv->gpu_error) || |
9349 | crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) | |
9350 | return true; | |
9351 | ||
75f7f3ec VS |
9352 | /* |
9353 | * The relevant registers doen't exist on pre-ctg. | |
9354 | * As the flip done interrupt doesn't trigger for mmio | |
9355 | * flips on gmch platforms, a flip count check isn't | |
9356 | * really needed there. But since ctg has the registers, | |
9357 | * include it in the check anyway. | |
9358 | */ | |
9359 | if (INTEL_INFO(dev)->gen < 5 && !IS_G4X(dev)) | |
9360 | return true; | |
9361 | ||
9362 | /* | |
9363 | * A DSPSURFLIVE check isn't enough in case the mmio and CS flips | |
9364 | * used the same base address. In that case the mmio flip might | |
9365 | * have completed, but the CS hasn't even executed the flip yet. | |
9366 | * | |
9367 | * A flip count check isn't enough as the CS might have updated | |
9368 | * the base address just after start of vblank, but before we | |
9369 | * managed to process the interrupt. This means we'd complete the | |
9370 | * CS flip too soon. | |
9371 | * | |
9372 | * Combining both checks should get us a good enough result. It may | |
9373 | * still happen that the CS flip has been executed, but has not | |
9374 | * yet actually completed. But in case the base address is the same | |
9375 | * anyway, we don't really care. | |
9376 | */ | |
9377 | return (I915_READ(DSPSURFLIVE(crtc->plane)) & ~0xfff) == | |
9378 | crtc->unpin_work->gtt_offset && | |
9379 | g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc->pipe)), | |
9380 | crtc->unpin_work->flip_count); | |
9381 | } | |
9382 | ||
6b95a207 KH |
9383 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
9384 | { | |
fbee40df | 9385 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
9386 | struct intel_crtc *intel_crtc = |
9387 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
9388 | unsigned long flags; | |
9389 | ||
f326038a DV |
9390 | |
9391 | /* | |
9392 | * This is called both by irq handlers and the reset code (to complete | |
9393 | * lost pageflips) so needs the full irqsave spinlocks. | |
9394 | * | |
9395 | * NB: An MMIO update of the plane base pointer will also | |
e7d841ca CW |
9396 | * generate a page-flip completion irq, i.e. every modeset |
9397 | * is also accompanied by a spurious intel_prepare_page_flip(). | |
9398 | */ | |
6b95a207 | 9399 | spin_lock_irqsave(&dev->event_lock, flags); |
75f7f3ec | 9400 | if (intel_crtc->unpin_work && page_flip_finished(intel_crtc)) |
e7d841ca | 9401 | atomic_inc_not_zero(&intel_crtc->unpin_work->pending); |
6b95a207 KH |
9402 | spin_unlock_irqrestore(&dev->event_lock, flags); |
9403 | } | |
9404 | ||
eba905b2 | 9405 | static inline void intel_mark_page_flip_active(struct intel_crtc *intel_crtc) |
e7d841ca CW |
9406 | { |
9407 | /* Ensure that the work item is consistent when activating it ... */ | |
9408 | smp_wmb(); | |
9409 | atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING); | |
9410 | /* and that it is marked active as soon as the irq could fire. */ | |
9411 | smp_wmb(); | |
9412 | } | |
9413 | ||
8c9f3aaf JB |
9414 | static int intel_gen2_queue_flip(struct drm_device *dev, |
9415 | struct drm_crtc *crtc, | |
9416 | struct drm_framebuffer *fb, | |
ed8d1975 | 9417 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9418 | struct intel_engine_cs *ring, |
ed8d1975 | 9419 | uint32_t flags) |
8c9f3aaf | 9420 | { |
8c9f3aaf | 9421 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8c9f3aaf JB |
9422 | u32 flip_mask; |
9423 | int ret; | |
9424 | ||
6d90c952 | 9425 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 9426 | if (ret) |
4fa62c89 | 9427 | return ret; |
8c9f3aaf JB |
9428 | |
9429 | /* Can't queue multiple flips, so wait for the previous | |
9430 | * one to finish before executing the next. | |
9431 | */ | |
9432 | if (intel_crtc->plane) | |
9433 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
9434 | else | |
9435 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
9436 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
9437 | intel_ring_emit(ring, MI_NOOP); | |
9438 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
9439 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
9440 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 9441 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
6d90c952 | 9442 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
e7d841ca CW |
9443 | |
9444 | intel_mark_page_flip_active(intel_crtc); | |
09246732 | 9445 | __intel_ring_advance(ring); |
83d4092b | 9446 | return 0; |
8c9f3aaf JB |
9447 | } |
9448 | ||
9449 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
9450 | struct drm_crtc *crtc, | |
9451 | struct drm_framebuffer *fb, | |
ed8d1975 | 9452 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9453 | struct intel_engine_cs *ring, |
ed8d1975 | 9454 | uint32_t flags) |
8c9f3aaf | 9455 | { |
8c9f3aaf | 9456 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8c9f3aaf JB |
9457 | u32 flip_mask; |
9458 | int ret; | |
9459 | ||
6d90c952 | 9460 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 9461 | if (ret) |
4fa62c89 | 9462 | return ret; |
8c9f3aaf JB |
9463 | |
9464 | if (intel_crtc->plane) | |
9465 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
9466 | else | |
9467 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
9468 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
9469 | intel_ring_emit(ring, MI_NOOP); | |
9470 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
9471 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
9472 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 9473 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
6d90c952 DV |
9474 | intel_ring_emit(ring, MI_NOOP); |
9475 | ||
e7d841ca | 9476 | intel_mark_page_flip_active(intel_crtc); |
09246732 | 9477 | __intel_ring_advance(ring); |
83d4092b | 9478 | return 0; |
8c9f3aaf JB |
9479 | } |
9480 | ||
9481 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
9482 | struct drm_crtc *crtc, | |
9483 | struct drm_framebuffer *fb, | |
ed8d1975 | 9484 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9485 | struct intel_engine_cs *ring, |
ed8d1975 | 9486 | uint32_t flags) |
8c9f3aaf JB |
9487 | { |
9488 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9489 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9490 | uint32_t pf, pipesrc; | |
9491 | int ret; | |
9492 | ||
6d90c952 | 9493 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 9494 | if (ret) |
4fa62c89 | 9495 | return ret; |
8c9f3aaf JB |
9496 | |
9497 | /* i965+ uses the linear or tiled offsets from the | |
9498 | * Display Registers (which do not change across a page-flip) | |
9499 | * so we need only reprogram the base address. | |
9500 | */ | |
6d90c952 DV |
9501 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
9502 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
9503 | intel_ring_emit(ring, fb->pitches[0]); | |
75f7f3ec | 9504 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset | |
c2c75131 | 9505 | obj->tiling_mode); |
8c9f3aaf JB |
9506 | |
9507 | /* XXX Enabling the panel-fitter across page-flip is so far | |
9508 | * untested on non-native modes, so ignore it for now. | |
9509 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
9510 | */ | |
9511 | pf = 0; | |
9512 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 | 9513 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca CW |
9514 | |
9515 | intel_mark_page_flip_active(intel_crtc); | |
09246732 | 9516 | __intel_ring_advance(ring); |
83d4092b | 9517 | return 0; |
8c9f3aaf JB |
9518 | } |
9519 | ||
9520 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
9521 | struct drm_crtc *crtc, | |
9522 | struct drm_framebuffer *fb, | |
ed8d1975 | 9523 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9524 | struct intel_engine_cs *ring, |
ed8d1975 | 9525 | uint32_t flags) |
8c9f3aaf JB |
9526 | { |
9527 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9528 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9529 | uint32_t pf, pipesrc; | |
9530 | int ret; | |
9531 | ||
6d90c952 | 9532 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 9533 | if (ret) |
4fa62c89 | 9534 | return ret; |
8c9f3aaf | 9535 | |
6d90c952 DV |
9536 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
9537 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
9538 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
75f7f3ec | 9539 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
8c9f3aaf | 9540 | |
dc257cf1 DV |
9541 | /* Contrary to the suggestions in the documentation, |
9542 | * "Enable Panel Fitter" does not seem to be required when page | |
9543 | * flipping with a non-native mode, and worse causes a normal | |
9544 | * modeset to fail. | |
9545 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
9546 | */ | |
9547 | pf = 0; | |
8c9f3aaf | 9548 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 | 9549 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca CW |
9550 | |
9551 | intel_mark_page_flip_active(intel_crtc); | |
09246732 | 9552 | __intel_ring_advance(ring); |
83d4092b | 9553 | return 0; |
8c9f3aaf JB |
9554 | } |
9555 | ||
7c9017e5 JB |
9556 | static int intel_gen7_queue_flip(struct drm_device *dev, |
9557 | struct drm_crtc *crtc, | |
9558 | struct drm_framebuffer *fb, | |
ed8d1975 | 9559 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9560 | struct intel_engine_cs *ring, |
ed8d1975 | 9561 | uint32_t flags) |
7c9017e5 | 9562 | { |
7c9017e5 | 9563 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
cb05d8de | 9564 | uint32_t plane_bit = 0; |
ffe74d75 CW |
9565 | int len, ret; |
9566 | ||
eba905b2 | 9567 | switch (intel_crtc->plane) { |
cb05d8de DV |
9568 | case PLANE_A: |
9569 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
9570 | break; | |
9571 | case PLANE_B: | |
9572 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
9573 | break; | |
9574 | case PLANE_C: | |
9575 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
9576 | break; | |
9577 | default: | |
9578 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
4fa62c89 | 9579 | return -ENODEV; |
cb05d8de DV |
9580 | } |
9581 | ||
ffe74d75 | 9582 | len = 4; |
f476828a | 9583 | if (ring->id == RCS) { |
ffe74d75 | 9584 | len += 6; |
f476828a DL |
9585 | /* |
9586 | * On Gen 8, SRM is now taking an extra dword to accommodate | |
9587 | * 48bits addresses, and we need a NOOP for the batch size to | |
9588 | * stay even. | |
9589 | */ | |
9590 | if (IS_GEN8(dev)) | |
9591 | len += 2; | |
9592 | } | |
ffe74d75 | 9593 | |
f66fab8e VS |
9594 | /* |
9595 | * BSpec MI_DISPLAY_FLIP for IVB: | |
9596 | * "The full packet must be contained within the same cache line." | |
9597 | * | |
9598 | * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same | |
9599 | * cacheline, if we ever start emitting more commands before | |
9600 | * the MI_DISPLAY_FLIP we may need to first emit everything else, | |
9601 | * then do the cacheline alignment, and finally emit the | |
9602 | * MI_DISPLAY_FLIP. | |
9603 | */ | |
9604 | ret = intel_ring_cacheline_align(ring); | |
9605 | if (ret) | |
4fa62c89 | 9606 | return ret; |
f66fab8e | 9607 | |
ffe74d75 | 9608 | ret = intel_ring_begin(ring, len); |
7c9017e5 | 9609 | if (ret) |
4fa62c89 | 9610 | return ret; |
7c9017e5 | 9611 | |
ffe74d75 CW |
9612 | /* Unmask the flip-done completion message. Note that the bspec says that |
9613 | * we should do this for both the BCS and RCS, and that we must not unmask | |
9614 | * more than one flip event at any time (or ensure that one flip message | |
9615 | * can be sent by waiting for flip-done prior to queueing new flips). | |
9616 | * Experimentation says that BCS works despite DERRMR masking all | |
9617 | * flip-done completion events and that unmasking all planes at once | |
9618 | * for the RCS also doesn't appear to drop events. Setting the DERRMR | |
9619 | * to zero does lead to lockups within MI_DISPLAY_FLIP. | |
9620 | */ | |
9621 | if (ring->id == RCS) { | |
9622 | intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); | |
9623 | intel_ring_emit(ring, DERRMR); | |
9624 | intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE | | |
9625 | DERRMR_PIPEB_PRI_FLIP_DONE | | |
9626 | DERRMR_PIPEC_PRI_FLIP_DONE)); | |
f476828a DL |
9627 | if (IS_GEN8(dev)) |
9628 | intel_ring_emit(ring, MI_STORE_REGISTER_MEM_GEN8(1) | | |
9629 | MI_SRM_LRM_GLOBAL_GTT); | |
9630 | else | |
9631 | intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1) | | |
9632 | MI_SRM_LRM_GLOBAL_GTT); | |
ffe74d75 CW |
9633 | intel_ring_emit(ring, DERRMR); |
9634 | intel_ring_emit(ring, ring->scratch.gtt_offset + 256); | |
f476828a DL |
9635 | if (IS_GEN8(dev)) { |
9636 | intel_ring_emit(ring, 0); | |
9637 | intel_ring_emit(ring, MI_NOOP); | |
9638 | } | |
ffe74d75 CW |
9639 | } |
9640 | ||
cb05d8de | 9641 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 9642 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
75f7f3ec | 9643 | intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset); |
7c9017e5 | 9644 | intel_ring_emit(ring, (MI_NOOP)); |
e7d841ca CW |
9645 | |
9646 | intel_mark_page_flip_active(intel_crtc); | |
09246732 | 9647 | __intel_ring_advance(ring); |
83d4092b | 9648 | return 0; |
7c9017e5 JB |
9649 | } |
9650 | ||
84c33a64 SG |
9651 | static bool use_mmio_flip(struct intel_engine_cs *ring, |
9652 | struct drm_i915_gem_object *obj) | |
9653 | { | |
9654 | /* | |
9655 | * This is not being used for older platforms, because | |
9656 | * non-availability of flip done interrupt forces us to use | |
9657 | * CS flips. Older platforms derive flip done using some clever | |
9658 | * tricks involving the flip_pending status bits and vblank irqs. | |
9659 | * So using MMIO flips there would disrupt this mechanism. | |
9660 | */ | |
9661 | ||
8e09bf83 CW |
9662 | if (ring == NULL) |
9663 | return true; | |
9664 | ||
84c33a64 SG |
9665 | if (INTEL_INFO(ring->dev)->gen < 5) |
9666 | return false; | |
9667 | ||
9668 | if (i915.use_mmio_flip < 0) | |
9669 | return false; | |
9670 | else if (i915.use_mmio_flip > 0) | |
9671 | return true; | |
14bf993e OM |
9672 | else if (i915.enable_execlists) |
9673 | return true; | |
84c33a64 | 9674 | else |
41c52415 | 9675 | return ring != i915_gem_request_get_ring(obj->last_read_req); |
84c33a64 SG |
9676 | } |
9677 | ||
ff944564 DL |
9678 | static void skl_do_mmio_flip(struct intel_crtc *intel_crtc) |
9679 | { | |
9680 | struct drm_device *dev = intel_crtc->base.dev; | |
9681 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9682 | struct drm_framebuffer *fb = intel_crtc->base.primary->fb; | |
9683 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
9684 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
9685 | const enum pipe pipe = intel_crtc->pipe; | |
9686 | u32 ctl, stride; | |
9687 | ||
9688 | ctl = I915_READ(PLANE_CTL(pipe, 0)); | |
9689 | ctl &= ~PLANE_CTL_TILED_MASK; | |
9690 | if (obj->tiling_mode == I915_TILING_X) | |
9691 | ctl |= PLANE_CTL_TILED_X; | |
9692 | ||
9693 | /* | |
9694 | * The stride is either expressed as a multiple of 64 bytes chunks for | |
9695 | * linear buffers or in number of tiles for tiled buffers. | |
9696 | */ | |
9697 | stride = fb->pitches[0] >> 6; | |
9698 | if (obj->tiling_mode == I915_TILING_X) | |
9699 | stride = fb->pitches[0] >> 9; /* X tiles are 512 bytes wide */ | |
9700 | ||
9701 | /* | |
9702 | * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on | |
9703 | * PLANE_SURF updates, the update is then guaranteed to be atomic. | |
9704 | */ | |
9705 | I915_WRITE(PLANE_CTL(pipe, 0), ctl); | |
9706 | I915_WRITE(PLANE_STRIDE(pipe, 0), stride); | |
9707 | ||
9708 | I915_WRITE(PLANE_SURF(pipe, 0), intel_crtc->unpin_work->gtt_offset); | |
9709 | POSTING_READ(PLANE_SURF(pipe, 0)); | |
9710 | } | |
9711 | ||
9712 | static void ilk_do_mmio_flip(struct intel_crtc *intel_crtc) | |
84c33a64 SG |
9713 | { |
9714 | struct drm_device *dev = intel_crtc->base.dev; | |
9715 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9716 | struct intel_framebuffer *intel_fb = | |
9717 | to_intel_framebuffer(intel_crtc->base.primary->fb); | |
9718 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
9719 | u32 dspcntr; | |
9720 | u32 reg; | |
9721 | ||
84c33a64 SG |
9722 | reg = DSPCNTR(intel_crtc->plane); |
9723 | dspcntr = I915_READ(reg); | |
9724 | ||
c5d97472 DL |
9725 | if (obj->tiling_mode != I915_TILING_NONE) |
9726 | dspcntr |= DISPPLANE_TILED; | |
9727 | else | |
9728 | dspcntr &= ~DISPPLANE_TILED; | |
9729 | ||
84c33a64 SG |
9730 | I915_WRITE(reg, dspcntr); |
9731 | ||
9732 | I915_WRITE(DSPSURF(intel_crtc->plane), | |
9733 | intel_crtc->unpin_work->gtt_offset); | |
9734 | POSTING_READ(DSPSURF(intel_crtc->plane)); | |
84c33a64 | 9735 | |
ff944564 DL |
9736 | } |
9737 | ||
9738 | /* | |
9739 | * XXX: This is the temporary way to update the plane registers until we get | |
9740 | * around to using the usual plane update functions for MMIO flips | |
9741 | */ | |
9742 | static void intel_do_mmio_flip(struct intel_crtc *intel_crtc) | |
9743 | { | |
9744 | struct drm_device *dev = intel_crtc->base.dev; | |
9745 | bool atomic_update; | |
9746 | u32 start_vbl_count; | |
9747 | ||
9748 | intel_mark_page_flip_active(intel_crtc); | |
9749 | ||
9750 | atomic_update = intel_pipe_update_start(intel_crtc, &start_vbl_count); | |
9751 | ||
9752 | if (INTEL_INFO(dev)->gen >= 9) | |
9753 | skl_do_mmio_flip(intel_crtc); | |
9754 | else | |
9755 | /* use_mmio_flip() retricts MMIO flips to ilk+ */ | |
9756 | ilk_do_mmio_flip(intel_crtc); | |
9757 | ||
9362c7c5 ACO |
9758 | if (atomic_update) |
9759 | intel_pipe_update_end(intel_crtc, start_vbl_count); | |
84c33a64 SG |
9760 | } |
9761 | ||
9362c7c5 | 9762 | static void intel_mmio_flip_work_func(struct work_struct *work) |
84c33a64 | 9763 | { |
cc8c4cc2 | 9764 | struct intel_crtc *crtc = |
9362c7c5 | 9765 | container_of(work, struct intel_crtc, mmio_flip.work); |
cc8c4cc2 | 9766 | struct intel_mmio_flip *mmio_flip; |
84c33a64 | 9767 | |
cc8c4cc2 JH |
9768 | mmio_flip = &crtc->mmio_flip; |
9769 | if (mmio_flip->req) | |
9c654818 JH |
9770 | WARN_ON(__i915_wait_request(mmio_flip->req, |
9771 | crtc->reset_counter, | |
9772 | false, NULL, NULL) != 0); | |
84c33a64 | 9773 | |
cc8c4cc2 JH |
9774 | intel_do_mmio_flip(crtc); |
9775 | if (mmio_flip->req) { | |
9776 | mutex_lock(&crtc->base.dev->struct_mutex); | |
146d84f0 | 9777 | i915_gem_request_assign(&mmio_flip->req, NULL); |
cc8c4cc2 JH |
9778 | mutex_unlock(&crtc->base.dev->struct_mutex); |
9779 | } | |
84c33a64 SG |
9780 | } |
9781 | ||
9782 | static int intel_queue_mmio_flip(struct drm_device *dev, | |
9783 | struct drm_crtc *crtc, | |
9784 | struct drm_framebuffer *fb, | |
9785 | struct drm_i915_gem_object *obj, | |
9786 | struct intel_engine_cs *ring, | |
9787 | uint32_t flags) | |
9788 | { | |
84c33a64 | 9789 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
84c33a64 | 9790 | |
cc8c4cc2 JH |
9791 | i915_gem_request_assign(&intel_crtc->mmio_flip.req, |
9792 | obj->last_write_req); | |
536f5b5e ACO |
9793 | |
9794 | schedule_work(&intel_crtc->mmio_flip.work); | |
84c33a64 | 9795 | |
84c33a64 SG |
9796 | return 0; |
9797 | } | |
9798 | ||
8c9f3aaf JB |
9799 | static int intel_default_queue_flip(struct drm_device *dev, |
9800 | struct drm_crtc *crtc, | |
9801 | struct drm_framebuffer *fb, | |
ed8d1975 | 9802 | struct drm_i915_gem_object *obj, |
a4872ba6 | 9803 | struct intel_engine_cs *ring, |
ed8d1975 | 9804 | uint32_t flags) |
8c9f3aaf JB |
9805 | { |
9806 | return -ENODEV; | |
9807 | } | |
9808 | ||
d6bbafa1 CW |
9809 | static bool __intel_pageflip_stall_check(struct drm_device *dev, |
9810 | struct drm_crtc *crtc) | |
9811 | { | |
9812 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9813 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9814 | struct intel_unpin_work *work = intel_crtc->unpin_work; | |
9815 | u32 addr; | |
9816 | ||
9817 | if (atomic_read(&work->pending) >= INTEL_FLIP_COMPLETE) | |
9818 | return true; | |
9819 | ||
9820 | if (!work->enable_stall_check) | |
9821 | return false; | |
9822 | ||
9823 | if (work->flip_ready_vblank == 0) { | |
3a8a946e DV |
9824 | if (work->flip_queued_req && |
9825 | !i915_gem_request_completed(work->flip_queued_req, true)) | |
d6bbafa1 CW |
9826 | return false; |
9827 | ||
1e3feefd | 9828 | work->flip_ready_vblank = drm_crtc_vblank_count(crtc); |
d6bbafa1 CW |
9829 | } |
9830 | ||
1e3feefd | 9831 | if (drm_crtc_vblank_count(crtc) - work->flip_ready_vblank < 3) |
d6bbafa1 CW |
9832 | return false; |
9833 | ||
9834 | /* Potential stall - if we see that the flip has happened, | |
9835 | * assume a missed interrupt. */ | |
9836 | if (INTEL_INFO(dev)->gen >= 4) | |
9837 | addr = I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc->plane))); | |
9838 | else | |
9839 | addr = I915_READ(DSPADDR(intel_crtc->plane)); | |
9840 | ||
9841 | /* There is a potential issue here with a false positive after a flip | |
9842 | * to the same address. We could address this by checking for a | |
9843 | * non-incrementing frame counter. | |
9844 | */ | |
9845 | return addr == work->gtt_offset; | |
9846 | } | |
9847 | ||
9848 | void intel_check_page_flip(struct drm_device *dev, int pipe) | |
9849 | { | |
9850 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9851 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
9852 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
f326038a | 9853 | |
6c51d46f | 9854 | WARN_ON(!in_interrupt()); |
d6bbafa1 CW |
9855 | |
9856 | if (crtc == NULL) | |
9857 | return; | |
9858 | ||
f326038a | 9859 | spin_lock(&dev->event_lock); |
d6bbafa1 CW |
9860 | if (intel_crtc->unpin_work && __intel_pageflip_stall_check(dev, crtc)) { |
9861 | WARN_ONCE(1, "Kicking stuck page flip: queued at %d, now %d\n", | |
1e3feefd DV |
9862 | intel_crtc->unpin_work->flip_queued_vblank, |
9863 | drm_vblank_count(dev, pipe)); | |
d6bbafa1 CW |
9864 | page_flip_completed(intel_crtc); |
9865 | } | |
f326038a | 9866 | spin_unlock(&dev->event_lock); |
d6bbafa1 CW |
9867 | } |
9868 | ||
6b95a207 KH |
9869 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
9870 | struct drm_framebuffer *fb, | |
ed8d1975 KP |
9871 | struct drm_pending_vblank_event *event, |
9872 | uint32_t page_flip_flags) | |
6b95a207 KH |
9873 | { |
9874 | struct drm_device *dev = crtc->dev; | |
9875 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f4510a27 | 9876 | struct drm_framebuffer *old_fb = crtc->primary->fb; |
2ff8fde1 | 9877 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
6b95a207 | 9878 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
455a6808 | 9879 | struct drm_plane *primary = crtc->primary; |
a071fa00 | 9880 | enum pipe pipe = intel_crtc->pipe; |
6b95a207 | 9881 | struct intel_unpin_work *work; |
a4872ba6 | 9882 | struct intel_engine_cs *ring; |
52e68630 | 9883 | int ret; |
6b95a207 | 9884 | |
2ff8fde1 MR |
9885 | /* |
9886 | * drm_mode_page_flip_ioctl() should already catch this, but double | |
9887 | * check to be safe. In the future we may enable pageflipping from | |
9888 | * a disabled primary plane. | |
9889 | */ | |
9890 | if (WARN_ON(intel_fb_obj(old_fb) == NULL)) | |
9891 | return -EBUSY; | |
9892 | ||
e6a595d2 | 9893 | /* Can't change pixel format via MI display flips. */ |
f4510a27 | 9894 | if (fb->pixel_format != crtc->primary->fb->pixel_format) |
e6a595d2 VS |
9895 | return -EINVAL; |
9896 | ||
9897 | /* | |
9898 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
9899 | * Note that pitch changes could also affect these register. | |
9900 | */ | |
9901 | if (INTEL_INFO(dev)->gen > 3 && | |
f4510a27 MR |
9902 | (fb->offsets[0] != crtc->primary->fb->offsets[0] || |
9903 | fb->pitches[0] != crtc->primary->fb->pitches[0])) | |
e6a595d2 VS |
9904 | return -EINVAL; |
9905 | ||
f900db47 CW |
9906 | if (i915_terminally_wedged(&dev_priv->gpu_error)) |
9907 | goto out_hang; | |
9908 | ||
b14c5679 | 9909 | work = kzalloc(sizeof(*work), GFP_KERNEL); |
6b95a207 KH |
9910 | if (work == NULL) |
9911 | return -ENOMEM; | |
9912 | ||
6b95a207 | 9913 | work->event = event; |
b4a98e57 | 9914 | work->crtc = crtc; |
ab8d6675 | 9915 | work->old_fb = old_fb; |
6b95a207 KH |
9916 | INIT_WORK(&work->work, intel_unpin_work_fn); |
9917 | ||
87b6b101 | 9918 | ret = drm_crtc_vblank_get(crtc); |
7317c75e JB |
9919 | if (ret) |
9920 | goto free_work; | |
9921 | ||
6b95a207 | 9922 | /* We borrow the event spin lock for protecting unpin_work */ |
5e2d7afc | 9923 | spin_lock_irq(&dev->event_lock); |
6b95a207 | 9924 | if (intel_crtc->unpin_work) { |
d6bbafa1 CW |
9925 | /* Before declaring the flip queue wedged, check if |
9926 | * the hardware completed the operation behind our backs. | |
9927 | */ | |
9928 | if (__intel_pageflip_stall_check(dev, crtc)) { | |
9929 | DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n"); | |
9930 | page_flip_completed(intel_crtc); | |
9931 | } else { | |
9932 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
5e2d7afc | 9933 | spin_unlock_irq(&dev->event_lock); |
468f0b44 | 9934 | |
d6bbafa1 CW |
9935 | drm_crtc_vblank_put(crtc); |
9936 | kfree(work); | |
9937 | return -EBUSY; | |
9938 | } | |
6b95a207 KH |
9939 | } |
9940 | intel_crtc->unpin_work = work; | |
5e2d7afc | 9941 | spin_unlock_irq(&dev->event_lock); |
6b95a207 | 9942 | |
b4a98e57 CW |
9943 | if (atomic_read(&intel_crtc->unpin_work_count) >= 2) |
9944 | flush_workqueue(dev_priv->wq); | |
9945 | ||
75dfca80 | 9946 | /* Reference the objects for the scheduled work. */ |
ab8d6675 | 9947 | drm_framebuffer_reference(work->old_fb); |
05394f39 | 9948 | drm_gem_object_reference(&obj->base); |
6b95a207 | 9949 | |
f4510a27 | 9950 | crtc->primary->fb = fb; |
afd65eb4 | 9951 | update_state_fb(crtc->primary); |
1ed1f968 | 9952 | |
e1f99ce6 | 9953 | work->pending_flip_obj = obj; |
e1f99ce6 | 9954 | |
89ed88ba CW |
9955 | ret = i915_mutex_lock_interruptible(dev); |
9956 | if (ret) | |
9957 | goto cleanup; | |
9958 | ||
b4a98e57 | 9959 | atomic_inc(&intel_crtc->unpin_work_count); |
10d83730 | 9960 | intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
e1f99ce6 | 9961 | |
75f7f3ec | 9962 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) |
a071fa00 | 9963 | work->flip_count = I915_READ(PIPE_FLIPCOUNT_GM45(pipe)) + 1; |
75f7f3ec | 9964 | |
4fa62c89 VS |
9965 | if (IS_VALLEYVIEW(dev)) { |
9966 | ring = &dev_priv->ring[BCS]; | |
ab8d6675 | 9967 | if (obj->tiling_mode != intel_fb_obj(work->old_fb)->tiling_mode) |
8e09bf83 CW |
9968 | /* vlv: DISPLAY_FLIP fails to change tiling */ |
9969 | ring = NULL; | |
48bf5b2d | 9970 | } else if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
2a92d5bc | 9971 | ring = &dev_priv->ring[BCS]; |
4fa62c89 | 9972 | } else if (INTEL_INFO(dev)->gen >= 7) { |
41c52415 | 9973 | ring = i915_gem_request_get_ring(obj->last_read_req); |
4fa62c89 VS |
9974 | if (ring == NULL || ring->id != RCS) |
9975 | ring = &dev_priv->ring[BCS]; | |
9976 | } else { | |
9977 | ring = &dev_priv->ring[RCS]; | |
9978 | } | |
9979 | ||
850c4cdc | 9980 | ret = intel_pin_and_fence_fb_obj(crtc->primary, fb, ring); |
8c9f3aaf JB |
9981 | if (ret) |
9982 | goto cleanup_pending; | |
6b95a207 | 9983 | |
4fa62c89 VS |
9984 | work->gtt_offset = |
9985 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset; | |
9986 | ||
d6bbafa1 | 9987 | if (use_mmio_flip(ring, obj)) { |
84c33a64 SG |
9988 | ret = intel_queue_mmio_flip(dev, crtc, fb, obj, ring, |
9989 | page_flip_flags); | |
d6bbafa1 CW |
9990 | if (ret) |
9991 | goto cleanup_unpin; | |
9992 | ||
f06cc1b9 JH |
9993 | i915_gem_request_assign(&work->flip_queued_req, |
9994 | obj->last_write_req); | |
d6bbafa1 | 9995 | } else { |
84c33a64 | 9996 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, ring, |
d6bbafa1 CW |
9997 | page_flip_flags); |
9998 | if (ret) | |
9999 | goto cleanup_unpin; | |
10000 | ||
f06cc1b9 JH |
10001 | i915_gem_request_assign(&work->flip_queued_req, |
10002 | intel_ring_get_request(ring)); | |
d6bbafa1 CW |
10003 | } |
10004 | ||
1e3feefd | 10005 | work->flip_queued_vblank = drm_crtc_vblank_count(crtc); |
d6bbafa1 | 10006 | work->enable_stall_check = true; |
4fa62c89 | 10007 | |
ab8d6675 | 10008 | i915_gem_track_fb(intel_fb_obj(work->old_fb), obj, |
a071fa00 DV |
10009 | INTEL_FRONTBUFFER_PRIMARY(pipe)); |
10010 | ||
7ff0ebcc | 10011 | intel_fbc_disable(dev); |
f99d7069 | 10012 | intel_frontbuffer_flip_prepare(dev, INTEL_FRONTBUFFER_PRIMARY(pipe)); |
6b95a207 KH |
10013 | mutex_unlock(&dev->struct_mutex); |
10014 | ||
e5510fac JB |
10015 | trace_i915_flip_request(intel_crtc->plane, obj); |
10016 | ||
6b95a207 | 10017 | return 0; |
96b099fd | 10018 | |
4fa62c89 VS |
10019 | cleanup_unpin: |
10020 | intel_unpin_fb_obj(obj); | |
8c9f3aaf | 10021 | cleanup_pending: |
b4a98e57 | 10022 | atomic_dec(&intel_crtc->unpin_work_count); |
89ed88ba CW |
10023 | mutex_unlock(&dev->struct_mutex); |
10024 | cleanup: | |
f4510a27 | 10025 | crtc->primary->fb = old_fb; |
afd65eb4 | 10026 | update_state_fb(crtc->primary); |
89ed88ba CW |
10027 | |
10028 | drm_gem_object_unreference_unlocked(&obj->base); | |
ab8d6675 | 10029 | drm_framebuffer_unreference(work->old_fb); |
96b099fd | 10030 | |
5e2d7afc | 10031 | spin_lock_irq(&dev->event_lock); |
96b099fd | 10032 | intel_crtc->unpin_work = NULL; |
5e2d7afc | 10033 | spin_unlock_irq(&dev->event_lock); |
96b099fd | 10034 | |
87b6b101 | 10035 | drm_crtc_vblank_put(crtc); |
7317c75e | 10036 | free_work: |
96b099fd CW |
10037 | kfree(work); |
10038 | ||
f900db47 CW |
10039 | if (ret == -EIO) { |
10040 | out_hang: | |
53a366b9 | 10041 | ret = intel_plane_restore(primary); |
f0d3dad3 | 10042 | if (ret == 0 && event) { |
5e2d7afc | 10043 | spin_lock_irq(&dev->event_lock); |
a071fa00 | 10044 | drm_send_vblank_event(dev, pipe, event); |
5e2d7afc | 10045 | spin_unlock_irq(&dev->event_lock); |
f0d3dad3 | 10046 | } |
f900db47 | 10047 | } |
96b099fd | 10048 | return ret; |
6b95a207 KH |
10049 | } |
10050 | ||
f6e5b160 | 10051 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 CW |
10052 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
10053 | .load_lut = intel_crtc_load_lut, | |
ea2c67bb MR |
10054 | .atomic_begin = intel_begin_crtc_commit, |
10055 | .atomic_flush = intel_finish_crtc_commit, | |
f6e5b160 CW |
10056 | }; |
10057 | ||
9a935856 DV |
10058 | /** |
10059 | * intel_modeset_update_staged_output_state | |
10060 | * | |
10061 | * Updates the staged output configuration state, e.g. after we've read out the | |
10062 | * current hw state. | |
10063 | */ | |
10064 | static void intel_modeset_update_staged_output_state(struct drm_device *dev) | |
f6e5b160 | 10065 | { |
7668851f | 10066 | struct intel_crtc *crtc; |
9a935856 DV |
10067 | struct intel_encoder *encoder; |
10068 | struct intel_connector *connector; | |
f6e5b160 | 10069 | |
3a3371ff | 10070 | for_each_intel_connector(dev, connector) { |
9a935856 DV |
10071 | connector->new_encoder = |
10072 | to_intel_encoder(connector->base.encoder); | |
10073 | } | |
f6e5b160 | 10074 | |
b2784e15 | 10075 | for_each_intel_encoder(dev, encoder) { |
9a935856 DV |
10076 | encoder->new_crtc = |
10077 | to_intel_crtc(encoder->base.crtc); | |
10078 | } | |
7668851f | 10079 | |
d3fcc808 | 10080 | for_each_intel_crtc(dev, crtc) { |
83d65738 | 10081 | crtc->new_enabled = crtc->base.state->enable; |
7bd0a8e7 VS |
10082 | |
10083 | if (crtc->new_enabled) | |
6e3c9717 | 10084 | crtc->new_config = crtc->config; |
7bd0a8e7 VS |
10085 | else |
10086 | crtc->new_config = NULL; | |
7668851f | 10087 | } |
f6e5b160 CW |
10088 | } |
10089 | ||
9a935856 DV |
10090 | /** |
10091 | * intel_modeset_commit_output_state | |
10092 | * | |
10093 | * This function copies the stage display pipe configuration to the real one. | |
10094 | */ | |
10095 | static void intel_modeset_commit_output_state(struct drm_device *dev) | |
10096 | { | |
7668851f | 10097 | struct intel_crtc *crtc; |
9a935856 DV |
10098 | struct intel_encoder *encoder; |
10099 | struct intel_connector *connector; | |
f6e5b160 | 10100 | |
3a3371ff | 10101 | for_each_intel_connector(dev, connector) { |
9a935856 DV |
10102 | connector->base.encoder = &connector->new_encoder->base; |
10103 | } | |
f6e5b160 | 10104 | |
b2784e15 | 10105 | for_each_intel_encoder(dev, encoder) { |
9a935856 DV |
10106 | encoder->base.crtc = &encoder->new_crtc->base; |
10107 | } | |
7668851f | 10108 | |
d3fcc808 | 10109 | for_each_intel_crtc(dev, crtc) { |
83d65738 | 10110 | crtc->base.state->enable = crtc->new_enabled; |
7668851f VS |
10111 | crtc->base.enabled = crtc->new_enabled; |
10112 | } | |
9a935856 DV |
10113 | } |
10114 | ||
050f7aeb | 10115 | static void |
eba905b2 | 10116 | connected_sink_compute_bpp(struct intel_connector *connector, |
5cec258b | 10117 | struct intel_crtc_state *pipe_config) |
050f7aeb DV |
10118 | { |
10119 | int bpp = pipe_config->pipe_bpp; | |
10120 | ||
10121 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n", | |
10122 | connector->base.base.id, | |
c23cc417 | 10123 | connector->base.name); |
050f7aeb DV |
10124 | |
10125 | /* Don't use an invalid EDID bpc value */ | |
10126 | if (connector->base.display_info.bpc && | |
10127 | connector->base.display_info.bpc * 3 < bpp) { | |
10128 | DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n", | |
10129 | bpp, connector->base.display_info.bpc*3); | |
10130 | pipe_config->pipe_bpp = connector->base.display_info.bpc*3; | |
10131 | } | |
10132 | ||
10133 | /* Clamp bpp to 8 on screens without EDID 1.4 */ | |
10134 | if (connector->base.display_info.bpc == 0 && bpp > 24) { | |
10135 | DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n", | |
10136 | bpp); | |
10137 | pipe_config->pipe_bpp = 24; | |
10138 | } | |
10139 | } | |
10140 | ||
4e53c2e0 | 10141 | static int |
050f7aeb DV |
10142 | compute_baseline_pipe_bpp(struct intel_crtc *crtc, |
10143 | struct drm_framebuffer *fb, | |
5cec258b | 10144 | struct intel_crtc_state *pipe_config) |
4e53c2e0 | 10145 | { |
050f7aeb DV |
10146 | struct drm_device *dev = crtc->base.dev; |
10147 | struct intel_connector *connector; | |
4e53c2e0 DV |
10148 | int bpp; |
10149 | ||
d42264b1 DV |
10150 | switch (fb->pixel_format) { |
10151 | case DRM_FORMAT_C8: | |
4e53c2e0 DV |
10152 | bpp = 8*3; /* since we go through a colormap */ |
10153 | break; | |
d42264b1 DV |
10154 | case DRM_FORMAT_XRGB1555: |
10155 | case DRM_FORMAT_ARGB1555: | |
10156 | /* checked in intel_framebuffer_init already */ | |
10157 | if (WARN_ON(INTEL_INFO(dev)->gen > 3)) | |
10158 | return -EINVAL; | |
10159 | case DRM_FORMAT_RGB565: | |
4e53c2e0 DV |
10160 | bpp = 6*3; /* min is 18bpp */ |
10161 | break; | |
d42264b1 DV |
10162 | case DRM_FORMAT_XBGR8888: |
10163 | case DRM_FORMAT_ABGR8888: | |
10164 | /* checked in intel_framebuffer_init already */ | |
10165 | if (WARN_ON(INTEL_INFO(dev)->gen < 4)) | |
10166 | return -EINVAL; | |
10167 | case DRM_FORMAT_XRGB8888: | |
10168 | case DRM_FORMAT_ARGB8888: | |
4e53c2e0 DV |
10169 | bpp = 8*3; |
10170 | break; | |
d42264b1 DV |
10171 | case DRM_FORMAT_XRGB2101010: |
10172 | case DRM_FORMAT_ARGB2101010: | |
10173 | case DRM_FORMAT_XBGR2101010: | |
10174 | case DRM_FORMAT_ABGR2101010: | |
10175 | /* checked in intel_framebuffer_init already */ | |
10176 | if (WARN_ON(INTEL_INFO(dev)->gen < 4)) | |
baba133a | 10177 | return -EINVAL; |
4e53c2e0 DV |
10178 | bpp = 10*3; |
10179 | break; | |
baba133a | 10180 | /* TODO: gen4+ supports 16 bpc floating point, too. */ |
4e53c2e0 DV |
10181 | default: |
10182 | DRM_DEBUG_KMS("unsupported depth\n"); | |
10183 | return -EINVAL; | |
10184 | } | |
10185 | ||
4e53c2e0 DV |
10186 | pipe_config->pipe_bpp = bpp; |
10187 | ||
10188 | /* Clamp display bpp to EDID value */ | |
3a3371ff | 10189 | for_each_intel_connector(dev, connector) { |
1b829e05 DV |
10190 | if (!connector->new_encoder || |
10191 | connector->new_encoder->new_crtc != crtc) | |
4e53c2e0 DV |
10192 | continue; |
10193 | ||
050f7aeb | 10194 | connected_sink_compute_bpp(connector, pipe_config); |
4e53c2e0 DV |
10195 | } |
10196 | ||
10197 | return bpp; | |
10198 | } | |
10199 | ||
644db711 DV |
10200 | static void intel_dump_crtc_timings(const struct drm_display_mode *mode) |
10201 | { | |
10202 | DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, " | |
10203 | "type: 0x%x flags: 0x%x\n", | |
1342830c | 10204 | mode->crtc_clock, |
644db711 DV |
10205 | mode->crtc_hdisplay, mode->crtc_hsync_start, |
10206 | mode->crtc_hsync_end, mode->crtc_htotal, | |
10207 | mode->crtc_vdisplay, mode->crtc_vsync_start, | |
10208 | mode->crtc_vsync_end, mode->crtc_vtotal, mode->type, mode->flags); | |
10209 | } | |
10210 | ||
c0b03411 | 10211 | static void intel_dump_pipe_config(struct intel_crtc *crtc, |
5cec258b | 10212 | struct intel_crtc_state *pipe_config, |
c0b03411 DV |
10213 | const char *context) |
10214 | { | |
10215 | DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id, | |
10216 | context, pipe_name(crtc->pipe)); | |
10217 | ||
10218 | DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder)); | |
10219 | DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n", | |
10220 | pipe_config->pipe_bpp, pipe_config->dither); | |
10221 | DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", | |
10222 | pipe_config->has_pch_encoder, | |
10223 | pipe_config->fdi_lanes, | |
10224 | pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n, | |
10225 | pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n, | |
10226 | pipe_config->fdi_m_n.tu); | |
eb14cb74 VS |
10227 | DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", |
10228 | pipe_config->has_dp_encoder, | |
10229 | pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n, | |
10230 | pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n, | |
10231 | pipe_config->dp_m_n.tu); | |
b95af8be VK |
10232 | |
10233 | DRM_DEBUG_KMS("dp: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n", | |
10234 | pipe_config->has_dp_encoder, | |
10235 | pipe_config->dp_m2_n2.gmch_m, | |
10236 | pipe_config->dp_m2_n2.gmch_n, | |
10237 | pipe_config->dp_m2_n2.link_m, | |
10238 | pipe_config->dp_m2_n2.link_n, | |
10239 | pipe_config->dp_m2_n2.tu); | |
10240 | ||
55072d19 DV |
10241 | DRM_DEBUG_KMS("audio: %i, infoframes: %i\n", |
10242 | pipe_config->has_audio, | |
10243 | pipe_config->has_infoframe); | |
10244 | ||
c0b03411 | 10245 | DRM_DEBUG_KMS("requested mode:\n"); |
2d112de7 | 10246 | drm_mode_debug_printmodeline(&pipe_config->base.mode); |
c0b03411 | 10247 | DRM_DEBUG_KMS("adjusted mode:\n"); |
2d112de7 ACO |
10248 | drm_mode_debug_printmodeline(&pipe_config->base.adjusted_mode); |
10249 | intel_dump_crtc_timings(&pipe_config->base.adjusted_mode); | |
d71b8d4a | 10250 | DRM_DEBUG_KMS("port clock: %d\n", pipe_config->port_clock); |
37327abd VS |
10251 | DRM_DEBUG_KMS("pipe src size: %dx%d\n", |
10252 | pipe_config->pipe_src_w, pipe_config->pipe_src_h); | |
c0b03411 DV |
10253 | DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n", |
10254 | pipe_config->gmch_pfit.control, | |
10255 | pipe_config->gmch_pfit.pgm_ratios, | |
10256 | pipe_config->gmch_pfit.lvds_border_bits); | |
fd4daa9c | 10257 | DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n", |
c0b03411 | 10258 | pipe_config->pch_pfit.pos, |
fd4daa9c CW |
10259 | pipe_config->pch_pfit.size, |
10260 | pipe_config->pch_pfit.enabled ? "enabled" : "disabled"); | |
42db64ef | 10261 | DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled); |
cf532bb2 | 10262 | DRM_DEBUG_KMS("double wide: %i\n", pipe_config->double_wide); |
c0b03411 DV |
10263 | } |
10264 | ||
bc079e8b VS |
10265 | static bool encoders_cloneable(const struct intel_encoder *a, |
10266 | const struct intel_encoder *b) | |
accfc0c5 | 10267 | { |
bc079e8b VS |
10268 | /* masks could be asymmetric, so check both ways */ |
10269 | return a == b || (a->cloneable & (1 << b->type) && | |
10270 | b->cloneable & (1 << a->type)); | |
10271 | } | |
10272 | ||
10273 | static bool check_single_encoder_cloning(struct intel_crtc *crtc, | |
10274 | struct intel_encoder *encoder) | |
10275 | { | |
10276 | struct drm_device *dev = crtc->base.dev; | |
10277 | struct intel_encoder *source_encoder; | |
10278 | ||
b2784e15 | 10279 | for_each_intel_encoder(dev, source_encoder) { |
bc079e8b VS |
10280 | if (source_encoder->new_crtc != crtc) |
10281 | continue; | |
10282 | ||
10283 | if (!encoders_cloneable(encoder, source_encoder)) | |
10284 | return false; | |
10285 | } | |
10286 | ||
10287 | return true; | |
10288 | } | |
10289 | ||
10290 | static bool check_encoder_cloning(struct intel_crtc *crtc) | |
10291 | { | |
10292 | struct drm_device *dev = crtc->base.dev; | |
accfc0c5 DV |
10293 | struct intel_encoder *encoder; |
10294 | ||
b2784e15 | 10295 | for_each_intel_encoder(dev, encoder) { |
bc079e8b | 10296 | if (encoder->new_crtc != crtc) |
accfc0c5 DV |
10297 | continue; |
10298 | ||
bc079e8b VS |
10299 | if (!check_single_encoder_cloning(crtc, encoder)) |
10300 | return false; | |
accfc0c5 DV |
10301 | } |
10302 | ||
bc079e8b | 10303 | return true; |
accfc0c5 DV |
10304 | } |
10305 | ||
00f0b378 VS |
10306 | static bool check_digital_port_conflicts(struct drm_device *dev) |
10307 | { | |
10308 | struct intel_connector *connector; | |
10309 | unsigned int used_ports = 0; | |
10310 | ||
10311 | /* | |
10312 | * Walk the connector list instead of the encoder | |
10313 | * list to detect the problem on ddi platforms | |
10314 | * where there's just one encoder per digital port. | |
10315 | */ | |
3a3371ff | 10316 | for_each_intel_connector(dev, connector) { |
00f0b378 VS |
10317 | struct intel_encoder *encoder = connector->new_encoder; |
10318 | ||
10319 | if (!encoder) | |
10320 | continue; | |
10321 | ||
10322 | WARN_ON(!encoder->new_crtc); | |
10323 | ||
10324 | switch (encoder->type) { | |
10325 | unsigned int port_mask; | |
10326 | case INTEL_OUTPUT_UNKNOWN: | |
10327 | if (WARN_ON(!HAS_DDI(dev))) | |
10328 | break; | |
10329 | case INTEL_OUTPUT_DISPLAYPORT: | |
10330 | case INTEL_OUTPUT_HDMI: | |
10331 | case INTEL_OUTPUT_EDP: | |
10332 | port_mask = 1 << enc_to_dig_port(&encoder->base)->port; | |
10333 | ||
10334 | /* the same port mustn't appear more than once */ | |
10335 | if (used_ports & port_mask) | |
10336 | return false; | |
10337 | ||
10338 | used_ports |= port_mask; | |
10339 | default: | |
10340 | break; | |
10341 | } | |
10342 | } | |
10343 | ||
10344 | return true; | |
10345 | } | |
10346 | ||
5cec258b | 10347 | static struct intel_crtc_state * |
b8cecdf5 | 10348 | intel_modeset_pipe_config(struct drm_crtc *crtc, |
4e53c2e0 | 10349 | struct drm_framebuffer *fb, |
b8cecdf5 | 10350 | struct drm_display_mode *mode) |
ee7b9f93 | 10351 | { |
7758a113 | 10352 | struct drm_device *dev = crtc->dev; |
7758a113 | 10353 | struct intel_encoder *encoder; |
5cec258b | 10354 | struct intel_crtc_state *pipe_config; |
e29c22c0 DV |
10355 | int plane_bpp, ret = -EINVAL; |
10356 | bool retry = true; | |
ee7b9f93 | 10357 | |
bc079e8b | 10358 | if (!check_encoder_cloning(to_intel_crtc(crtc))) { |
accfc0c5 DV |
10359 | DRM_DEBUG_KMS("rejecting invalid cloning configuration\n"); |
10360 | return ERR_PTR(-EINVAL); | |
10361 | } | |
10362 | ||
00f0b378 VS |
10363 | if (!check_digital_port_conflicts(dev)) { |
10364 | DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n"); | |
10365 | return ERR_PTR(-EINVAL); | |
10366 | } | |
10367 | ||
b8cecdf5 DV |
10368 | pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL); |
10369 | if (!pipe_config) | |
7758a113 DV |
10370 | return ERR_PTR(-ENOMEM); |
10371 | ||
07878248 | 10372 | pipe_config->base.crtc = crtc; |
2d112de7 ACO |
10373 | drm_mode_copy(&pipe_config->base.adjusted_mode, mode); |
10374 | drm_mode_copy(&pipe_config->base.mode, mode); | |
37327abd | 10375 | |
e143a21c DV |
10376 | pipe_config->cpu_transcoder = |
10377 | (enum transcoder) to_intel_crtc(crtc)->pipe; | |
c0d43d62 | 10378 | pipe_config->shared_dpll = DPLL_ID_PRIVATE; |
b8cecdf5 | 10379 | |
2960bc9c ID |
10380 | /* |
10381 | * Sanitize sync polarity flags based on requested ones. If neither | |
10382 | * positive or negative polarity is requested, treat this as meaning | |
10383 | * negative polarity. | |
10384 | */ | |
2d112de7 | 10385 | if (!(pipe_config->base.adjusted_mode.flags & |
2960bc9c | 10386 | (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC))) |
2d112de7 | 10387 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC; |
2960bc9c | 10388 | |
2d112de7 | 10389 | if (!(pipe_config->base.adjusted_mode.flags & |
2960bc9c | 10390 | (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC))) |
2d112de7 | 10391 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC; |
2960bc9c | 10392 | |
050f7aeb DV |
10393 | /* Compute a starting value for pipe_config->pipe_bpp taking the source |
10394 | * plane pixel format and any sink constraints into account. Returns the | |
10395 | * source plane bpp so that dithering can be selected on mismatches | |
10396 | * after encoders and crtc also have had their say. */ | |
10397 | plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc), | |
10398 | fb, pipe_config); | |
4e53c2e0 DV |
10399 | if (plane_bpp < 0) |
10400 | goto fail; | |
10401 | ||
e41a56be VS |
10402 | /* |
10403 | * Determine the real pipe dimensions. Note that stereo modes can | |
10404 | * increase the actual pipe size due to the frame doubling and | |
10405 | * insertion of additional space for blanks between the frame. This | |
10406 | * is stored in the crtc timings. We use the requested mode to do this | |
10407 | * computation to clearly distinguish it from the adjusted mode, which | |
10408 | * can be changed by the connectors in the below retry loop. | |
10409 | */ | |
2d112de7 | 10410 | drm_crtc_get_hv_timing(&pipe_config->base.mode, |
ecb7e16b GP |
10411 | &pipe_config->pipe_src_w, |
10412 | &pipe_config->pipe_src_h); | |
e41a56be | 10413 | |
e29c22c0 | 10414 | encoder_retry: |
ef1b460d | 10415 | /* Ensure the port clock defaults are reset when retrying. */ |
ff9a6750 | 10416 | pipe_config->port_clock = 0; |
ef1b460d | 10417 | pipe_config->pixel_multiplier = 1; |
ff9a6750 | 10418 | |
135c81b8 | 10419 | /* Fill in default crtc timings, allow encoders to overwrite them. */ |
2d112de7 ACO |
10420 | drm_mode_set_crtcinfo(&pipe_config->base.adjusted_mode, |
10421 | CRTC_STEREO_DOUBLE); | |
135c81b8 | 10422 | |
7758a113 DV |
10423 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
10424 | * adjust it according to limitations or connector properties, and also | |
10425 | * a chance to reject the mode entirely. | |
47f1c6c9 | 10426 | */ |
b2784e15 | 10427 | for_each_intel_encoder(dev, encoder) { |
47f1c6c9 | 10428 | |
7758a113 DV |
10429 | if (&encoder->new_crtc->base != crtc) |
10430 | continue; | |
7ae89233 | 10431 | |
efea6e8e DV |
10432 | if (!(encoder->compute_config(encoder, pipe_config))) { |
10433 | DRM_DEBUG_KMS("Encoder config failure\n"); | |
7758a113 DV |
10434 | goto fail; |
10435 | } | |
ee7b9f93 | 10436 | } |
47f1c6c9 | 10437 | |
ff9a6750 DV |
10438 | /* Set default port clock if not overwritten by the encoder. Needs to be |
10439 | * done afterwards in case the encoder adjusts the mode. */ | |
10440 | if (!pipe_config->port_clock) | |
2d112de7 | 10441 | pipe_config->port_clock = pipe_config->base.adjusted_mode.crtc_clock |
241bfc38 | 10442 | * pipe_config->pixel_multiplier; |
ff9a6750 | 10443 | |
a43f6e0f | 10444 | ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config); |
e29c22c0 | 10445 | if (ret < 0) { |
7758a113 DV |
10446 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
10447 | goto fail; | |
ee7b9f93 | 10448 | } |
e29c22c0 DV |
10449 | |
10450 | if (ret == RETRY) { | |
10451 | if (WARN(!retry, "loop in pipe configuration computation\n")) { | |
10452 | ret = -EINVAL; | |
10453 | goto fail; | |
10454 | } | |
10455 | ||
10456 | DRM_DEBUG_KMS("CRTC bw constrained, retrying\n"); | |
10457 | retry = false; | |
10458 | goto encoder_retry; | |
10459 | } | |
10460 | ||
4e53c2e0 DV |
10461 | pipe_config->dither = pipe_config->pipe_bpp != plane_bpp; |
10462 | DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n", | |
10463 | plane_bpp, pipe_config->pipe_bpp, pipe_config->dither); | |
10464 | ||
b8cecdf5 | 10465 | return pipe_config; |
7758a113 | 10466 | fail: |
b8cecdf5 | 10467 | kfree(pipe_config); |
e29c22c0 | 10468 | return ERR_PTR(ret); |
ee7b9f93 | 10469 | } |
47f1c6c9 | 10470 | |
e2e1ed41 DV |
10471 | /* Computes which crtcs are affected and sets the relevant bits in the mask. For |
10472 | * simplicity we use the crtc's pipe number (because it's easier to obtain). */ | |
10473 | static void | |
10474 | intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes, | |
10475 | unsigned *prepare_pipes, unsigned *disable_pipes) | |
79e53945 JB |
10476 | { |
10477 | struct intel_crtc *intel_crtc; | |
e2e1ed41 DV |
10478 | struct drm_device *dev = crtc->dev; |
10479 | struct intel_encoder *encoder; | |
10480 | struct intel_connector *connector; | |
10481 | struct drm_crtc *tmp_crtc; | |
79e53945 | 10482 | |
e2e1ed41 | 10483 | *disable_pipes = *modeset_pipes = *prepare_pipes = 0; |
79e53945 | 10484 | |
e2e1ed41 DV |
10485 | /* Check which crtcs have changed outputs connected to them, these need |
10486 | * to be part of the prepare_pipes mask. We don't (yet) support global | |
10487 | * modeset across multiple crtcs, so modeset_pipes will only have one | |
10488 | * bit set at most. */ | |
3a3371ff | 10489 | for_each_intel_connector(dev, connector) { |
e2e1ed41 DV |
10490 | if (connector->base.encoder == &connector->new_encoder->base) |
10491 | continue; | |
79e53945 | 10492 | |
e2e1ed41 DV |
10493 | if (connector->base.encoder) { |
10494 | tmp_crtc = connector->base.encoder->crtc; | |
10495 | ||
10496 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
10497 | } | |
10498 | ||
10499 | if (connector->new_encoder) | |
10500 | *prepare_pipes |= | |
10501 | 1 << connector->new_encoder->new_crtc->pipe; | |
79e53945 JB |
10502 | } |
10503 | ||
b2784e15 | 10504 | for_each_intel_encoder(dev, encoder) { |
e2e1ed41 DV |
10505 | if (encoder->base.crtc == &encoder->new_crtc->base) |
10506 | continue; | |
10507 | ||
10508 | if (encoder->base.crtc) { | |
10509 | tmp_crtc = encoder->base.crtc; | |
10510 | ||
10511 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
10512 | } | |
10513 | ||
10514 | if (encoder->new_crtc) | |
10515 | *prepare_pipes |= 1 << encoder->new_crtc->pipe; | |
80824003 JB |
10516 | } |
10517 | ||
7668851f | 10518 | /* Check for pipes that will be enabled/disabled ... */ |
d3fcc808 | 10519 | for_each_intel_crtc(dev, intel_crtc) { |
83d65738 | 10520 | if (intel_crtc->base.state->enable == intel_crtc->new_enabled) |
e2e1ed41 | 10521 | continue; |
7e7d76c3 | 10522 | |
7668851f | 10523 | if (!intel_crtc->new_enabled) |
e2e1ed41 | 10524 | *disable_pipes |= 1 << intel_crtc->pipe; |
7668851f VS |
10525 | else |
10526 | *prepare_pipes |= 1 << intel_crtc->pipe; | |
7e7d76c3 JB |
10527 | } |
10528 | ||
e2e1ed41 DV |
10529 | |
10530 | /* set_mode is also used to update properties on life display pipes. */ | |
10531 | intel_crtc = to_intel_crtc(crtc); | |
7668851f | 10532 | if (intel_crtc->new_enabled) |
e2e1ed41 DV |
10533 | *prepare_pipes |= 1 << intel_crtc->pipe; |
10534 | ||
b6c5164d DV |
10535 | /* |
10536 | * For simplicity do a full modeset on any pipe where the output routing | |
10537 | * changed. We could be more clever, but that would require us to be | |
10538 | * more careful with calling the relevant encoder->mode_set functions. | |
10539 | */ | |
e2e1ed41 DV |
10540 | if (*prepare_pipes) |
10541 | *modeset_pipes = *prepare_pipes; | |
10542 | ||
10543 | /* ... and mask these out. */ | |
10544 | *modeset_pipes &= ~(*disable_pipes); | |
10545 | *prepare_pipes &= ~(*disable_pipes); | |
b6c5164d DV |
10546 | |
10547 | /* | |
10548 | * HACK: We don't (yet) fully support global modesets. intel_set_config | |
10549 | * obies this rule, but the modeset restore mode of | |
10550 | * intel_modeset_setup_hw_state does not. | |
10551 | */ | |
10552 | *modeset_pipes &= 1 << intel_crtc->pipe; | |
10553 | *prepare_pipes &= 1 << intel_crtc->pipe; | |
e3641d3f DV |
10554 | |
10555 | DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n", | |
10556 | *modeset_pipes, *prepare_pipes, *disable_pipes); | |
47f1c6c9 | 10557 | } |
79e53945 | 10558 | |
ea9d758d | 10559 | static bool intel_crtc_in_use(struct drm_crtc *crtc) |
f6e5b160 | 10560 | { |
ea9d758d | 10561 | struct drm_encoder *encoder; |
f6e5b160 | 10562 | struct drm_device *dev = crtc->dev; |
f6e5b160 | 10563 | |
ea9d758d DV |
10564 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
10565 | if (encoder->crtc == crtc) | |
10566 | return true; | |
10567 | ||
10568 | return false; | |
10569 | } | |
10570 | ||
10571 | static void | |
10572 | intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes) | |
10573 | { | |
ba41c0de | 10574 | struct drm_i915_private *dev_priv = dev->dev_private; |
ea9d758d DV |
10575 | struct intel_encoder *intel_encoder; |
10576 | struct intel_crtc *intel_crtc; | |
10577 | struct drm_connector *connector; | |
10578 | ||
ba41c0de DV |
10579 | intel_shared_dpll_commit(dev_priv); |
10580 | ||
b2784e15 | 10581 | for_each_intel_encoder(dev, intel_encoder) { |
ea9d758d DV |
10582 | if (!intel_encoder->base.crtc) |
10583 | continue; | |
10584 | ||
10585 | intel_crtc = to_intel_crtc(intel_encoder->base.crtc); | |
10586 | ||
10587 | if (prepare_pipes & (1 << intel_crtc->pipe)) | |
10588 | intel_encoder->connectors_active = false; | |
10589 | } | |
10590 | ||
10591 | intel_modeset_commit_output_state(dev); | |
10592 | ||
7668851f | 10593 | /* Double check state. */ |
d3fcc808 | 10594 | for_each_intel_crtc(dev, intel_crtc) { |
83d65738 | 10595 | WARN_ON(intel_crtc->base.state->enable != intel_crtc_in_use(&intel_crtc->base)); |
7bd0a8e7 | 10596 | WARN_ON(intel_crtc->new_config && |
6e3c9717 | 10597 | intel_crtc->new_config != intel_crtc->config); |
83d65738 | 10598 | WARN_ON(intel_crtc->base.state->enable != !!intel_crtc->new_config); |
ea9d758d DV |
10599 | } |
10600 | ||
10601 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
10602 | if (!connector->encoder || !connector->encoder->crtc) | |
10603 | continue; | |
10604 | ||
10605 | intel_crtc = to_intel_crtc(connector->encoder->crtc); | |
10606 | ||
10607 | if (prepare_pipes & (1 << intel_crtc->pipe)) { | |
68d34720 DV |
10608 | struct drm_property *dpms_property = |
10609 | dev->mode_config.dpms_property; | |
10610 | ||
ea9d758d | 10611 | connector->dpms = DRM_MODE_DPMS_ON; |
662595df | 10612 | drm_object_property_set_value(&connector->base, |
68d34720 DV |
10613 | dpms_property, |
10614 | DRM_MODE_DPMS_ON); | |
ea9d758d DV |
10615 | |
10616 | intel_encoder = to_intel_encoder(connector->encoder); | |
10617 | intel_encoder->connectors_active = true; | |
10618 | } | |
10619 | } | |
10620 | ||
10621 | } | |
10622 | ||
3bd26263 | 10623 | static bool intel_fuzzy_clock_check(int clock1, int clock2) |
f1f644dc | 10624 | { |
3bd26263 | 10625 | int diff; |
f1f644dc JB |
10626 | |
10627 | if (clock1 == clock2) | |
10628 | return true; | |
10629 | ||
10630 | if (!clock1 || !clock2) | |
10631 | return false; | |
10632 | ||
10633 | diff = abs(clock1 - clock2); | |
10634 | ||
10635 | if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105) | |
10636 | return true; | |
10637 | ||
10638 | return false; | |
10639 | } | |
10640 | ||
25c5b266 DV |
10641 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
10642 | list_for_each_entry((intel_crtc), \ | |
10643 | &(dev)->mode_config.crtc_list, \ | |
10644 | base.head) \ | |
0973f18f | 10645 | if (mask & (1 <<(intel_crtc)->pipe)) |
25c5b266 | 10646 | |
0e8ffe1b | 10647 | static bool |
2fa2fe9a | 10648 | intel_pipe_config_compare(struct drm_device *dev, |
5cec258b ACO |
10649 | struct intel_crtc_state *current_config, |
10650 | struct intel_crtc_state *pipe_config) | |
0e8ffe1b | 10651 | { |
66e985c0 DV |
10652 | #define PIPE_CONF_CHECK_X(name) \ |
10653 | if (current_config->name != pipe_config->name) { \ | |
10654 | DRM_ERROR("mismatch in " #name " " \ | |
10655 | "(expected 0x%08x, found 0x%08x)\n", \ | |
10656 | current_config->name, \ | |
10657 | pipe_config->name); \ | |
10658 | return false; \ | |
10659 | } | |
10660 | ||
08a24034 DV |
10661 | #define PIPE_CONF_CHECK_I(name) \ |
10662 | if (current_config->name != pipe_config->name) { \ | |
10663 | DRM_ERROR("mismatch in " #name " " \ | |
10664 | "(expected %i, found %i)\n", \ | |
10665 | current_config->name, \ | |
10666 | pipe_config->name); \ | |
10667 | return false; \ | |
88adfff1 DV |
10668 | } |
10669 | ||
b95af8be VK |
10670 | /* This is required for BDW+ where there is only one set of registers for |
10671 | * switching between high and low RR. | |
10672 | * This macro can be used whenever a comparison has to be made between one | |
10673 | * hw state and multiple sw state variables. | |
10674 | */ | |
10675 | #define PIPE_CONF_CHECK_I_ALT(name, alt_name) \ | |
10676 | if ((current_config->name != pipe_config->name) && \ | |
10677 | (current_config->alt_name != pipe_config->name)) { \ | |
10678 | DRM_ERROR("mismatch in " #name " " \ | |
10679 | "(expected %i or %i, found %i)\n", \ | |
10680 | current_config->name, \ | |
10681 | current_config->alt_name, \ | |
10682 | pipe_config->name); \ | |
10683 | return false; \ | |
10684 | } | |
10685 | ||
1bd1bd80 DV |
10686 | #define PIPE_CONF_CHECK_FLAGS(name, mask) \ |
10687 | if ((current_config->name ^ pipe_config->name) & (mask)) { \ | |
6f02488e | 10688 | DRM_ERROR("mismatch in " #name "(" #mask ") " \ |
1bd1bd80 DV |
10689 | "(expected %i, found %i)\n", \ |
10690 | current_config->name & (mask), \ | |
10691 | pipe_config->name & (mask)); \ | |
10692 | return false; \ | |
10693 | } | |
10694 | ||
5e550656 VS |
10695 | #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \ |
10696 | if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \ | |
10697 | DRM_ERROR("mismatch in " #name " " \ | |
10698 | "(expected %i, found %i)\n", \ | |
10699 | current_config->name, \ | |
10700 | pipe_config->name); \ | |
10701 | return false; \ | |
10702 | } | |
10703 | ||
bb760063 DV |
10704 | #define PIPE_CONF_QUIRK(quirk) \ |
10705 | ((current_config->quirks | pipe_config->quirks) & (quirk)) | |
10706 | ||
eccb140b DV |
10707 | PIPE_CONF_CHECK_I(cpu_transcoder); |
10708 | ||
08a24034 DV |
10709 | PIPE_CONF_CHECK_I(has_pch_encoder); |
10710 | PIPE_CONF_CHECK_I(fdi_lanes); | |
72419203 DV |
10711 | PIPE_CONF_CHECK_I(fdi_m_n.gmch_m); |
10712 | PIPE_CONF_CHECK_I(fdi_m_n.gmch_n); | |
10713 | PIPE_CONF_CHECK_I(fdi_m_n.link_m); | |
10714 | PIPE_CONF_CHECK_I(fdi_m_n.link_n); | |
10715 | PIPE_CONF_CHECK_I(fdi_m_n.tu); | |
08a24034 | 10716 | |
eb14cb74 | 10717 | PIPE_CONF_CHECK_I(has_dp_encoder); |
b95af8be VK |
10718 | |
10719 | if (INTEL_INFO(dev)->gen < 8) { | |
10720 | PIPE_CONF_CHECK_I(dp_m_n.gmch_m); | |
10721 | PIPE_CONF_CHECK_I(dp_m_n.gmch_n); | |
10722 | PIPE_CONF_CHECK_I(dp_m_n.link_m); | |
10723 | PIPE_CONF_CHECK_I(dp_m_n.link_n); | |
10724 | PIPE_CONF_CHECK_I(dp_m_n.tu); | |
10725 | ||
10726 | if (current_config->has_drrs) { | |
10727 | PIPE_CONF_CHECK_I(dp_m2_n2.gmch_m); | |
10728 | PIPE_CONF_CHECK_I(dp_m2_n2.gmch_n); | |
10729 | PIPE_CONF_CHECK_I(dp_m2_n2.link_m); | |
10730 | PIPE_CONF_CHECK_I(dp_m2_n2.link_n); | |
10731 | PIPE_CONF_CHECK_I(dp_m2_n2.tu); | |
10732 | } | |
10733 | } else { | |
10734 | PIPE_CONF_CHECK_I_ALT(dp_m_n.gmch_m, dp_m2_n2.gmch_m); | |
10735 | PIPE_CONF_CHECK_I_ALT(dp_m_n.gmch_n, dp_m2_n2.gmch_n); | |
10736 | PIPE_CONF_CHECK_I_ALT(dp_m_n.link_m, dp_m2_n2.link_m); | |
10737 | PIPE_CONF_CHECK_I_ALT(dp_m_n.link_n, dp_m2_n2.link_n); | |
10738 | PIPE_CONF_CHECK_I_ALT(dp_m_n.tu, dp_m2_n2.tu); | |
10739 | } | |
eb14cb74 | 10740 | |
2d112de7 ACO |
10741 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hdisplay); |
10742 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_htotal); | |
10743 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hblank_start); | |
10744 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hblank_end); | |
10745 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hsync_start); | |
10746 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hsync_end); | |
1bd1bd80 | 10747 | |
2d112de7 ACO |
10748 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vdisplay); |
10749 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vtotal); | |
10750 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vblank_start); | |
10751 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vblank_end); | |
10752 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_start); | |
10753 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_end); | |
1bd1bd80 | 10754 | |
c93f54cf | 10755 | PIPE_CONF_CHECK_I(pixel_multiplier); |
6897b4b5 | 10756 | PIPE_CONF_CHECK_I(has_hdmi_sink); |
b5a9fa09 DV |
10757 | if ((INTEL_INFO(dev)->gen < 8 && !IS_HASWELL(dev)) || |
10758 | IS_VALLEYVIEW(dev)) | |
10759 | PIPE_CONF_CHECK_I(limited_color_range); | |
e43823ec | 10760 | PIPE_CONF_CHECK_I(has_infoframe); |
6c49f241 | 10761 | |
9ed109a7 DV |
10762 | PIPE_CONF_CHECK_I(has_audio); |
10763 | ||
2d112de7 | 10764 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
1bd1bd80 DV |
10765 | DRM_MODE_FLAG_INTERLACE); |
10766 | ||
bb760063 | 10767 | if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) { |
2d112de7 | 10768 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 10769 | DRM_MODE_FLAG_PHSYNC); |
2d112de7 | 10770 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 10771 | DRM_MODE_FLAG_NHSYNC); |
2d112de7 | 10772 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 10773 | DRM_MODE_FLAG_PVSYNC); |
2d112de7 | 10774 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 DV |
10775 | DRM_MODE_FLAG_NVSYNC); |
10776 | } | |
045ac3b5 | 10777 | |
37327abd VS |
10778 | PIPE_CONF_CHECK_I(pipe_src_w); |
10779 | PIPE_CONF_CHECK_I(pipe_src_h); | |
1bd1bd80 | 10780 | |
9953599b DV |
10781 | /* |
10782 | * FIXME: BIOS likes to set up a cloned config with lvds+external | |
10783 | * screen. Since we don't yet re-compute the pipe config when moving | |
10784 | * just the lvds port away to another pipe the sw tracking won't match. | |
10785 | * | |
10786 | * Proper atomic modesets with recomputed global state will fix this. | |
10787 | * Until then just don't check gmch state for inherited modes. | |
10788 | */ | |
10789 | if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE)) { | |
10790 | PIPE_CONF_CHECK_I(gmch_pfit.control); | |
10791 | /* pfit ratios are autocomputed by the hw on gen4+ */ | |
10792 | if (INTEL_INFO(dev)->gen < 4) | |
10793 | PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios); | |
10794 | PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits); | |
10795 | } | |
10796 | ||
fd4daa9c CW |
10797 | PIPE_CONF_CHECK_I(pch_pfit.enabled); |
10798 | if (current_config->pch_pfit.enabled) { | |
10799 | PIPE_CONF_CHECK_I(pch_pfit.pos); | |
10800 | PIPE_CONF_CHECK_I(pch_pfit.size); | |
10801 | } | |
2fa2fe9a | 10802 | |
e59150dc JB |
10803 | /* BDW+ don't expose a synchronous way to read the state */ |
10804 | if (IS_HASWELL(dev)) | |
10805 | PIPE_CONF_CHECK_I(ips_enabled); | |
42db64ef | 10806 | |
282740f7 VS |
10807 | PIPE_CONF_CHECK_I(double_wide); |
10808 | ||
26804afd DV |
10809 | PIPE_CONF_CHECK_X(ddi_pll_sel); |
10810 | ||
c0d43d62 | 10811 | PIPE_CONF_CHECK_I(shared_dpll); |
66e985c0 | 10812 | PIPE_CONF_CHECK_X(dpll_hw_state.dpll); |
8bcc2795 | 10813 | PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md); |
66e985c0 DV |
10814 | PIPE_CONF_CHECK_X(dpll_hw_state.fp0); |
10815 | PIPE_CONF_CHECK_X(dpll_hw_state.fp1); | |
d452c5b6 | 10816 | PIPE_CONF_CHECK_X(dpll_hw_state.wrpll); |
3f4cd19f DL |
10817 | PIPE_CONF_CHECK_X(dpll_hw_state.ctrl1); |
10818 | PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr1); | |
10819 | PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr2); | |
c0d43d62 | 10820 | |
42571aef VS |
10821 | if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) |
10822 | PIPE_CONF_CHECK_I(pipe_bpp); | |
10823 | ||
2d112de7 | 10824 | PIPE_CONF_CHECK_CLOCK_FUZZY(base.adjusted_mode.crtc_clock); |
a9a7e98a | 10825 | PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock); |
5e550656 | 10826 | |
66e985c0 | 10827 | #undef PIPE_CONF_CHECK_X |
08a24034 | 10828 | #undef PIPE_CONF_CHECK_I |
b95af8be | 10829 | #undef PIPE_CONF_CHECK_I_ALT |
1bd1bd80 | 10830 | #undef PIPE_CONF_CHECK_FLAGS |
5e550656 | 10831 | #undef PIPE_CONF_CHECK_CLOCK_FUZZY |
bb760063 | 10832 | #undef PIPE_CONF_QUIRK |
88adfff1 | 10833 | |
0e8ffe1b DV |
10834 | return true; |
10835 | } | |
10836 | ||
08db6652 DL |
10837 | static void check_wm_state(struct drm_device *dev) |
10838 | { | |
10839 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10840 | struct skl_ddb_allocation hw_ddb, *sw_ddb; | |
10841 | struct intel_crtc *intel_crtc; | |
10842 | int plane; | |
10843 | ||
10844 | if (INTEL_INFO(dev)->gen < 9) | |
10845 | return; | |
10846 | ||
10847 | skl_ddb_get_hw_state(dev_priv, &hw_ddb); | |
10848 | sw_ddb = &dev_priv->wm.skl_hw.ddb; | |
10849 | ||
10850 | for_each_intel_crtc(dev, intel_crtc) { | |
10851 | struct skl_ddb_entry *hw_entry, *sw_entry; | |
10852 | const enum pipe pipe = intel_crtc->pipe; | |
10853 | ||
10854 | if (!intel_crtc->active) | |
10855 | continue; | |
10856 | ||
10857 | /* planes */ | |
dd740780 | 10858 | for_each_plane(dev_priv, pipe, plane) { |
08db6652 DL |
10859 | hw_entry = &hw_ddb.plane[pipe][plane]; |
10860 | sw_entry = &sw_ddb->plane[pipe][plane]; | |
10861 | ||
10862 | if (skl_ddb_entry_equal(hw_entry, sw_entry)) | |
10863 | continue; | |
10864 | ||
10865 | DRM_ERROR("mismatch in DDB state pipe %c plane %d " | |
10866 | "(expected (%u,%u), found (%u,%u))\n", | |
10867 | pipe_name(pipe), plane + 1, | |
10868 | sw_entry->start, sw_entry->end, | |
10869 | hw_entry->start, hw_entry->end); | |
10870 | } | |
10871 | ||
10872 | /* cursor */ | |
10873 | hw_entry = &hw_ddb.cursor[pipe]; | |
10874 | sw_entry = &sw_ddb->cursor[pipe]; | |
10875 | ||
10876 | if (skl_ddb_entry_equal(hw_entry, sw_entry)) | |
10877 | continue; | |
10878 | ||
10879 | DRM_ERROR("mismatch in DDB state pipe %c cursor " | |
10880 | "(expected (%u,%u), found (%u,%u))\n", | |
10881 | pipe_name(pipe), | |
10882 | sw_entry->start, sw_entry->end, | |
10883 | hw_entry->start, hw_entry->end); | |
10884 | } | |
10885 | } | |
10886 | ||
91d1b4bd DV |
10887 | static void |
10888 | check_connector_state(struct drm_device *dev) | |
8af6cf88 | 10889 | { |
8af6cf88 DV |
10890 | struct intel_connector *connector; |
10891 | ||
3a3371ff | 10892 | for_each_intel_connector(dev, connector) { |
8af6cf88 DV |
10893 | /* This also checks the encoder/connector hw state with the |
10894 | * ->get_hw_state callbacks. */ | |
10895 | intel_connector_check_state(connector); | |
10896 | ||
e2c719b7 | 10897 | I915_STATE_WARN(&connector->new_encoder->base != connector->base.encoder, |
8af6cf88 DV |
10898 | "connector's staged encoder doesn't match current encoder\n"); |
10899 | } | |
91d1b4bd DV |
10900 | } |
10901 | ||
10902 | static void | |
10903 | check_encoder_state(struct drm_device *dev) | |
10904 | { | |
10905 | struct intel_encoder *encoder; | |
10906 | struct intel_connector *connector; | |
8af6cf88 | 10907 | |
b2784e15 | 10908 | for_each_intel_encoder(dev, encoder) { |
8af6cf88 DV |
10909 | bool enabled = false; |
10910 | bool active = false; | |
10911 | enum pipe pipe, tracked_pipe; | |
10912 | ||
10913 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", | |
10914 | encoder->base.base.id, | |
8e329a03 | 10915 | encoder->base.name); |
8af6cf88 | 10916 | |
e2c719b7 | 10917 | I915_STATE_WARN(&encoder->new_crtc->base != encoder->base.crtc, |
8af6cf88 | 10918 | "encoder's stage crtc doesn't match current crtc\n"); |
e2c719b7 | 10919 | I915_STATE_WARN(encoder->connectors_active && !encoder->base.crtc, |
8af6cf88 DV |
10920 | "encoder's active_connectors set, but no crtc\n"); |
10921 | ||
3a3371ff | 10922 | for_each_intel_connector(dev, connector) { |
8af6cf88 DV |
10923 | if (connector->base.encoder != &encoder->base) |
10924 | continue; | |
10925 | enabled = true; | |
10926 | if (connector->base.dpms != DRM_MODE_DPMS_OFF) | |
10927 | active = true; | |
10928 | } | |
0e32b39c DA |
10929 | /* |
10930 | * for MST connectors if we unplug the connector is gone | |
10931 | * away but the encoder is still connected to a crtc | |
10932 | * until a modeset happens in response to the hotplug. | |
10933 | */ | |
10934 | if (!enabled && encoder->base.encoder_type == DRM_MODE_ENCODER_DPMST) | |
10935 | continue; | |
10936 | ||
e2c719b7 | 10937 | I915_STATE_WARN(!!encoder->base.crtc != enabled, |
8af6cf88 DV |
10938 | "encoder's enabled state mismatch " |
10939 | "(expected %i, found %i)\n", | |
10940 | !!encoder->base.crtc, enabled); | |
e2c719b7 | 10941 | I915_STATE_WARN(active && !encoder->base.crtc, |
8af6cf88 DV |
10942 | "active encoder with no crtc\n"); |
10943 | ||
e2c719b7 | 10944 | I915_STATE_WARN(encoder->connectors_active != active, |
8af6cf88 DV |
10945 | "encoder's computed active state doesn't match tracked active state " |
10946 | "(expected %i, found %i)\n", active, encoder->connectors_active); | |
10947 | ||
10948 | active = encoder->get_hw_state(encoder, &pipe); | |
e2c719b7 | 10949 | I915_STATE_WARN(active != encoder->connectors_active, |
8af6cf88 DV |
10950 | "encoder's hw state doesn't match sw tracking " |
10951 | "(expected %i, found %i)\n", | |
10952 | encoder->connectors_active, active); | |
10953 | ||
10954 | if (!encoder->base.crtc) | |
10955 | continue; | |
10956 | ||
10957 | tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe; | |
e2c719b7 | 10958 | I915_STATE_WARN(active && pipe != tracked_pipe, |
8af6cf88 DV |
10959 | "active encoder's pipe doesn't match" |
10960 | "(expected %i, found %i)\n", | |
10961 | tracked_pipe, pipe); | |
10962 | ||
10963 | } | |
91d1b4bd DV |
10964 | } |
10965 | ||
10966 | static void | |
10967 | check_crtc_state(struct drm_device *dev) | |
10968 | { | |
fbee40df | 10969 | struct drm_i915_private *dev_priv = dev->dev_private; |
91d1b4bd DV |
10970 | struct intel_crtc *crtc; |
10971 | struct intel_encoder *encoder; | |
5cec258b | 10972 | struct intel_crtc_state pipe_config; |
8af6cf88 | 10973 | |
d3fcc808 | 10974 | for_each_intel_crtc(dev, crtc) { |
8af6cf88 DV |
10975 | bool enabled = false; |
10976 | bool active = false; | |
10977 | ||
045ac3b5 JB |
10978 | memset(&pipe_config, 0, sizeof(pipe_config)); |
10979 | ||
8af6cf88 DV |
10980 | DRM_DEBUG_KMS("[CRTC:%d]\n", |
10981 | crtc->base.base.id); | |
10982 | ||
83d65738 | 10983 | I915_STATE_WARN(crtc->active && !crtc->base.state->enable, |
8af6cf88 DV |
10984 | "active crtc, but not enabled in sw tracking\n"); |
10985 | ||
b2784e15 | 10986 | for_each_intel_encoder(dev, encoder) { |
8af6cf88 DV |
10987 | if (encoder->base.crtc != &crtc->base) |
10988 | continue; | |
10989 | enabled = true; | |
10990 | if (encoder->connectors_active) | |
10991 | active = true; | |
10992 | } | |
6c49f241 | 10993 | |
e2c719b7 | 10994 | I915_STATE_WARN(active != crtc->active, |
8af6cf88 DV |
10995 | "crtc's computed active state doesn't match tracked active state " |
10996 | "(expected %i, found %i)\n", active, crtc->active); | |
83d65738 | 10997 | I915_STATE_WARN(enabled != crtc->base.state->enable, |
8af6cf88 | 10998 | "crtc's computed enabled state doesn't match tracked enabled state " |
83d65738 MR |
10999 | "(expected %i, found %i)\n", enabled, |
11000 | crtc->base.state->enable); | |
8af6cf88 | 11001 | |
0e8ffe1b DV |
11002 | active = dev_priv->display.get_pipe_config(crtc, |
11003 | &pipe_config); | |
d62cf62a | 11004 | |
b6b5d049 VS |
11005 | /* hw state is inconsistent with the pipe quirk */ |
11006 | if ((crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
11007 | (crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
d62cf62a DV |
11008 | active = crtc->active; |
11009 | ||
b2784e15 | 11010 | for_each_intel_encoder(dev, encoder) { |
3eaba51c | 11011 | enum pipe pipe; |
6c49f241 DV |
11012 | if (encoder->base.crtc != &crtc->base) |
11013 | continue; | |
1d37b689 | 11014 | if (encoder->get_hw_state(encoder, &pipe)) |
6c49f241 DV |
11015 | encoder->get_config(encoder, &pipe_config); |
11016 | } | |
11017 | ||
e2c719b7 | 11018 | I915_STATE_WARN(crtc->active != active, |
0e8ffe1b DV |
11019 | "crtc active state doesn't match with hw state " |
11020 | "(expected %i, found %i)\n", crtc->active, active); | |
11021 | ||
c0b03411 | 11022 | if (active && |
6e3c9717 | 11023 | !intel_pipe_config_compare(dev, crtc->config, &pipe_config)) { |
e2c719b7 | 11024 | I915_STATE_WARN(1, "pipe state doesn't match!\n"); |
c0b03411 DV |
11025 | intel_dump_pipe_config(crtc, &pipe_config, |
11026 | "[hw state]"); | |
6e3c9717 | 11027 | intel_dump_pipe_config(crtc, crtc->config, |
c0b03411 DV |
11028 | "[sw state]"); |
11029 | } | |
8af6cf88 DV |
11030 | } |
11031 | } | |
11032 | ||
91d1b4bd DV |
11033 | static void |
11034 | check_shared_dpll_state(struct drm_device *dev) | |
11035 | { | |
fbee40df | 11036 | struct drm_i915_private *dev_priv = dev->dev_private; |
91d1b4bd DV |
11037 | struct intel_crtc *crtc; |
11038 | struct intel_dpll_hw_state dpll_hw_state; | |
11039 | int i; | |
5358901f DV |
11040 | |
11041 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { | |
11042 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
11043 | int enabled_crtcs = 0, active_crtcs = 0; | |
11044 | bool active; | |
11045 | ||
11046 | memset(&dpll_hw_state, 0, sizeof(dpll_hw_state)); | |
11047 | ||
11048 | DRM_DEBUG_KMS("%s\n", pll->name); | |
11049 | ||
11050 | active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state); | |
11051 | ||
e2c719b7 | 11052 | I915_STATE_WARN(pll->active > hweight32(pll->config.crtc_mask), |
5358901f | 11053 | "more active pll users than references: %i vs %i\n", |
3e369b76 | 11054 | pll->active, hweight32(pll->config.crtc_mask)); |
e2c719b7 | 11055 | I915_STATE_WARN(pll->active && !pll->on, |
5358901f | 11056 | "pll in active use but not on in sw tracking\n"); |
e2c719b7 | 11057 | I915_STATE_WARN(pll->on && !pll->active, |
35c95375 | 11058 | "pll in on but not on in use in sw tracking\n"); |
e2c719b7 | 11059 | I915_STATE_WARN(pll->on != active, |
5358901f DV |
11060 | "pll on state mismatch (expected %i, found %i)\n", |
11061 | pll->on, active); | |
11062 | ||
d3fcc808 | 11063 | for_each_intel_crtc(dev, crtc) { |
83d65738 | 11064 | if (crtc->base.state->enable && intel_crtc_to_shared_dpll(crtc) == pll) |
5358901f DV |
11065 | enabled_crtcs++; |
11066 | if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll) | |
11067 | active_crtcs++; | |
11068 | } | |
e2c719b7 | 11069 | I915_STATE_WARN(pll->active != active_crtcs, |
5358901f DV |
11070 | "pll active crtcs mismatch (expected %i, found %i)\n", |
11071 | pll->active, active_crtcs); | |
e2c719b7 | 11072 | I915_STATE_WARN(hweight32(pll->config.crtc_mask) != enabled_crtcs, |
5358901f | 11073 | "pll enabled crtcs mismatch (expected %i, found %i)\n", |
3e369b76 | 11074 | hweight32(pll->config.crtc_mask), enabled_crtcs); |
66e985c0 | 11075 | |
e2c719b7 | 11076 | I915_STATE_WARN(pll->on && memcmp(&pll->config.hw_state, &dpll_hw_state, |
66e985c0 DV |
11077 | sizeof(dpll_hw_state)), |
11078 | "pll hw state mismatch\n"); | |
5358901f | 11079 | } |
8af6cf88 DV |
11080 | } |
11081 | ||
91d1b4bd DV |
11082 | void |
11083 | intel_modeset_check_state(struct drm_device *dev) | |
11084 | { | |
08db6652 | 11085 | check_wm_state(dev); |
91d1b4bd DV |
11086 | check_connector_state(dev); |
11087 | check_encoder_state(dev); | |
11088 | check_crtc_state(dev); | |
11089 | check_shared_dpll_state(dev); | |
11090 | } | |
11091 | ||
5cec258b | 11092 | void ironlake_check_encoder_dotclock(const struct intel_crtc_state *pipe_config, |
18442d08 VS |
11093 | int dotclock) |
11094 | { | |
11095 | /* | |
11096 | * FDI already provided one idea for the dotclock. | |
11097 | * Yell if the encoder disagrees. | |
11098 | */ | |
2d112de7 | 11099 | WARN(!intel_fuzzy_clock_check(pipe_config->base.adjusted_mode.crtc_clock, dotclock), |
18442d08 | 11100 | "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n", |
2d112de7 | 11101 | pipe_config->base.adjusted_mode.crtc_clock, dotclock); |
18442d08 VS |
11102 | } |
11103 | ||
80715b2f VS |
11104 | static void update_scanline_offset(struct intel_crtc *crtc) |
11105 | { | |
11106 | struct drm_device *dev = crtc->base.dev; | |
11107 | ||
11108 | /* | |
11109 | * The scanline counter increments at the leading edge of hsync. | |
11110 | * | |
11111 | * On most platforms it starts counting from vtotal-1 on the | |
11112 | * first active line. That means the scanline counter value is | |
11113 | * always one less than what we would expect. Ie. just after | |
11114 | * start of vblank, which also occurs at start of hsync (on the | |
11115 | * last active line), the scanline counter will read vblank_start-1. | |
11116 | * | |
11117 | * On gen2 the scanline counter starts counting from 1 instead | |
11118 | * of vtotal-1, so we have to subtract one (or rather add vtotal-1 | |
11119 | * to keep the value positive), instead of adding one. | |
11120 | * | |
11121 | * On HSW+ the behaviour of the scanline counter depends on the output | |
11122 | * type. For DP ports it behaves like most other platforms, but on HDMI | |
11123 | * there's an extra 1 line difference. So we need to add two instead of | |
11124 | * one to the value. | |
11125 | */ | |
11126 | if (IS_GEN2(dev)) { | |
6e3c9717 | 11127 | const struct drm_display_mode *mode = &crtc->config->base.adjusted_mode; |
80715b2f VS |
11128 | int vtotal; |
11129 | ||
11130 | vtotal = mode->crtc_vtotal; | |
11131 | if (mode->flags & DRM_MODE_FLAG_INTERLACE) | |
11132 | vtotal /= 2; | |
11133 | ||
11134 | crtc->scanline_offset = vtotal - 1; | |
11135 | } else if (HAS_DDI(dev) && | |
409ee761 | 11136 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) { |
80715b2f VS |
11137 | crtc->scanline_offset = 2; |
11138 | } else | |
11139 | crtc->scanline_offset = 1; | |
11140 | } | |
11141 | ||
5cec258b | 11142 | static struct intel_crtc_state * |
7f27126e JB |
11143 | intel_modeset_compute_config(struct drm_crtc *crtc, |
11144 | struct drm_display_mode *mode, | |
11145 | struct drm_framebuffer *fb, | |
11146 | unsigned *modeset_pipes, | |
11147 | unsigned *prepare_pipes, | |
11148 | unsigned *disable_pipes) | |
11149 | { | |
5cec258b | 11150 | struct intel_crtc_state *pipe_config = NULL; |
7f27126e JB |
11151 | |
11152 | intel_modeset_affected_pipes(crtc, modeset_pipes, | |
11153 | prepare_pipes, disable_pipes); | |
11154 | ||
11155 | if ((*modeset_pipes) == 0) | |
11156 | goto out; | |
11157 | ||
11158 | /* | |
11159 | * Note this needs changes when we start tracking multiple modes | |
11160 | * and crtcs. At that point we'll need to compute the whole config | |
11161 | * (i.e. one pipe_config for each crtc) rather than just the one | |
11162 | * for this crtc. | |
11163 | */ | |
11164 | pipe_config = intel_modeset_pipe_config(crtc, fb, mode); | |
11165 | if (IS_ERR(pipe_config)) { | |
11166 | goto out; | |
11167 | } | |
11168 | intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config, | |
11169 | "[modeset]"); | |
7f27126e JB |
11170 | |
11171 | out: | |
11172 | return pipe_config; | |
11173 | } | |
11174 | ||
ed6739ef ACO |
11175 | static int __intel_set_mode_setup_plls(struct drm_device *dev, |
11176 | unsigned modeset_pipes, | |
11177 | unsigned disable_pipes) | |
11178 | { | |
11179 | struct drm_i915_private *dev_priv = to_i915(dev); | |
11180 | unsigned clear_pipes = modeset_pipes | disable_pipes; | |
11181 | struct intel_crtc *intel_crtc; | |
11182 | int ret = 0; | |
11183 | ||
11184 | if (!dev_priv->display.crtc_compute_clock) | |
11185 | return 0; | |
11186 | ||
11187 | ret = intel_shared_dpll_start_config(dev_priv, clear_pipes); | |
11188 | if (ret) | |
11189 | goto done; | |
11190 | ||
11191 | for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { | |
11192 | struct intel_crtc_state *state = intel_crtc->new_config; | |
11193 | ret = dev_priv->display.crtc_compute_clock(intel_crtc, | |
11194 | state); | |
11195 | if (ret) { | |
11196 | intel_shared_dpll_abort_config(dev_priv); | |
11197 | goto done; | |
11198 | } | |
11199 | } | |
11200 | ||
11201 | done: | |
11202 | return ret; | |
11203 | } | |
11204 | ||
f30da187 DV |
11205 | static int __intel_set_mode(struct drm_crtc *crtc, |
11206 | struct drm_display_mode *mode, | |
7f27126e | 11207 | int x, int y, struct drm_framebuffer *fb, |
5cec258b | 11208 | struct intel_crtc_state *pipe_config, |
7f27126e JB |
11209 | unsigned modeset_pipes, |
11210 | unsigned prepare_pipes, | |
11211 | unsigned disable_pipes) | |
a6778b3c DV |
11212 | { |
11213 | struct drm_device *dev = crtc->dev; | |
fbee40df | 11214 | struct drm_i915_private *dev_priv = dev->dev_private; |
4b4b9238 | 11215 | struct drm_display_mode *saved_mode; |
25c5b266 | 11216 | struct intel_crtc *intel_crtc; |
c0c36b94 | 11217 | int ret = 0; |
a6778b3c | 11218 | |
4b4b9238 | 11219 | saved_mode = kmalloc(sizeof(*saved_mode), GFP_KERNEL); |
c0c36b94 CW |
11220 | if (!saved_mode) |
11221 | return -ENOMEM; | |
a6778b3c | 11222 | |
3ac18232 | 11223 | *saved_mode = crtc->mode; |
a6778b3c | 11224 | |
b9950a13 VS |
11225 | if (modeset_pipes) |
11226 | to_intel_crtc(crtc)->new_config = pipe_config; | |
11227 | ||
30a970c6 JB |
11228 | /* |
11229 | * See if the config requires any additional preparation, e.g. | |
11230 | * to adjust global state with pipes off. We need to do this | |
11231 | * here so we can get the modeset_pipe updated config for the new | |
11232 | * mode set on this crtc. For other crtcs we need to use the | |
11233 | * adjusted_mode bits in the crtc directly. | |
11234 | */ | |
c164f833 | 11235 | if (IS_VALLEYVIEW(dev)) { |
2f2d7aa1 | 11236 | valleyview_modeset_global_pipes(dev, &prepare_pipes); |
30a970c6 | 11237 | |
c164f833 VS |
11238 | /* may have added more to prepare_pipes than we should */ |
11239 | prepare_pipes &= ~disable_pipes; | |
11240 | } | |
11241 | ||
ed6739ef ACO |
11242 | ret = __intel_set_mode_setup_plls(dev, modeset_pipes, disable_pipes); |
11243 | if (ret) | |
11244 | goto done; | |
8bd31e67 | 11245 | |
460da916 DV |
11246 | for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) |
11247 | intel_crtc_disable(&intel_crtc->base); | |
11248 | ||
ea9d758d | 11249 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) { |
83d65738 | 11250 | if (intel_crtc->base.state->enable) |
ea9d758d DV |
11251 | dev_priv->display.crtc_disable(&intel_crtc->base); |
11252 | } | |
a6778b3c | 11253 | |
6c4c86f5 DV |
11254 | /* crtc->mode is already used by the ->mode_set callbacks, hence we need |
11255 | * to set it here already despite that we pass it down the callchain. | |
7f27126e JB |
11256 | * |
11257 | * Note we'll need to fix this up when we start tracking multiple | |
11258 | * pipes; here we assume a single modeset_pipe and only track the | |
11259 | * single crtc and mode. | |
f6e5b160 | 11260 | */ |
b8cecdf5 | 11261 | if (modeset_pipes) { |
25c5b266 | 11262 | crtc->mode = *mode; |
b8cecdf5 DV |
11263 | /* mode_set/enable/disable functions rely on a correct pipe |
11264 | * config. */ | |
f5de6e07 | 11265 | intel_crtc_set_state(to_intel_crtc(crtc), pipe_config); |
c326c0a9 VS |
11266 | |
11267 | /* | |
11268 | * Calculate and store various constants which | |
11269 | * are later needed by vblank and swap-completion | |
11270 | * timestamping. They are derived from true hwmode. | |
11271 | */ | |
11272 | drm_calc_timestamping_constants(crtc, | |
2d112de7 | 11273 | &pipe_config->base.adjusted_mode); |
b8cecdf5 | 11274 | } |
7758a113 | 11275 | |
ea9d758d DV |
11276 | /* Only after disabling all output pipelines that will be changed can we |
11277 | * update the the output configuration. */ | |
11278 | intel_modeset_update_state(dev, prepare_pipes); | |
f6e5b160 | 11279 | |
50f6e502 | 11280 | modeset_update_crtc_power_domains(dev); |
47fab737 | 11281 | |
a6778b3c DV |
11282 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
11283 | * on the DPLL. | |
f6e5b160 | 11284 | */ |
25c5b266 | 11285 | for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { |
455a6808 GP |
11286 | struct drm_plane *primary = intel_crtc->base.primary; |
11287 | int vdisplay, hdisplay; | |
4c10794f | 11288 | |
455a6808 GP |
11289 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
11290 | ret = primary->funcs->update_plane(primary, &intel_crtc->base, | |
11291 | fb, 0, 0, | |
11292 | hdisplay, vdisplay, | |
11293 | x << 16, y << 16, | |
11294 | hdisplay << 16, vdisplay << 16); | |
a6778b3c DV |
11295 | } |
11296 | ||
11297 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ | |
80715b2f VS |
11298 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) { |
11299 | update_scanline_offset(intel_crtc); | |
11300 | ||
25c5b266 | 11301 | dev_priv->display.crtc_enable(&intel_crtc->base); |
80715b2f | 11302 | } |
a6778b3c | 11303 | |
a6778b3c DV |
11304 | /* FIXME: add subpixel order */ |
11305 | done: | |
83d65738 | 11306 | if (ret && crtc->state->enable) |
3ac18232 | 11307 | crtc->mode = *saved_mode; |
a6778b3c | 11308 | |
3ac18232 | 11309 | kfree(saved_mode); |
a6778b3c | 11310 | return ret; |
f6e5b160 CW |
11311 | } |
11312 | ||
7f27126e JB |
11313 | static int intel_set_mode_pipes(struct drm_crtc *crtc, |
11314 | struct drm_display_mode *mode, | |
11315 | int x, int y, struct drm_framebuffer *fb, | |
5cec258b | 11316 | struct intel_crtc_state *pipe_config, |
7f27126e JB |
11317 | unsigned modeset_pipes, |
11318 | unsigned prepare_pipes, | |
11319 | unsigned disable_pipes) | |
f30da187 DV |
11320 | { |
11321 | int ret; | |
11322 | ||
7f27126e JB |
11323 | ret = __intel_set_mode(crtc, mode, x, y, fb, pipe_config, modeset_pipes, |
11324 | prepare_pipes, disable_pipes); | |
f30da187 DV |
11325 | |
11326 | if (ret == 0) | |
11327 | intel_modeset_check_state(crtc->dev); | |
11328 | ||
11329 | return ret; | |
11330 | } | |
11331 | ||
7f27126e JB |
11332 | static int intel_set_mode(struct drm_crtc *crtc, |
11333 | struct drm_display_mode *mode, | |
11334 | int x, int y, struct drm_framebuffer *fb) | |
11335 | { | |
5cec258b | 11336 | struct intel_crtc_state *pipe_config; |
7f27126e JB |
11337 | unsigned modeset_pipes, prepare_pipes, disable_pipes; |
11338 | ||
11339 | pipe_config = intel_modeset_compute_config(crtc, mode, fb, | |
11340 | &modeset_pipes, | |
11341 | &prepare_pipes, | |
11342 | &disable_pipes); | |
11343 | ||
11344 | if (IS_ERR(pipe_config)) | |
11345 | return PTR_ERR(pipe_config); | |
11346 | ||
11347 | return intel_set_mode_pipes(crtc, mode, x, y, fb, pipe_config, | |
11348 | modeset_pipes, prepare_pipes, | |
11349 | disable_pipes); | |
11350 | } | |
11351 | ||
c0c36b94 CW |
11352 | void intel_crtc_restore_mode(struct drm_crtc *crtc) |
11353 | { | |
f4510a27 | 11354 | intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->primary->fb); |
c0c36b94 CW |
11355 | } |
11356 | ||
25c5b266 DV |
11357 | #undef for_each_intel_crtc_masked |
11358 | ||
d9e55608 DV |
11359 | static void intel_set_config_free(struct intel_set_config *config) |
11360 | { | |
11361 | if (!config) | |
11362 | return; | |
11363 | ||
1aa4b628 DV |
11364 | kfree(config->save_connector_encoders); |
11365 | kfree(config->save_encoder_crtcs); | |
7668851f | 11366 | kfree(config->save_crtc_enabled); |
d9e55608 DV |
11367 | kfree(config); |
11368 | } | |
11369 | ||
85f9eb71 DV |
11370 | static int intel_set_config_save_state(struct drm_device *dev, |
11371 | struct intel_set_config *config) | |
11372 | { | |
7668851f | 11373 | struct drm_crtc *crtc; |
85f9eb71 DV |
11374 | struct drm_encoder *encoder; |
11375 | struct drm_connector *connector; | |
11376 | int count; | |
11377 | ||
7668851f VS |
11378 | config->save_crtc_enabled = |
11379 | kcalloc(dev->mode_config.num_crtc, | |
11380 | sizeof(bool), GFP_KERNEL); | |
11381 | if (!config->save_crtc_enabled) | |
11382 | return -ENOMEM; | |
11383 | ||
1aa4b628 DV |
11384 | config->save_encoder_crtcs = |
11385 | kcalloc(dev->mode_config.num_encoder, | |
11386 | sizeof(struct drm_crtc *), GFP_KERNEL); | |
11387 | if (!config->save_encoder_crtcs) | |
85f9eb71 DV |
11388 | return -ENOMEM; |
11389 | ||
1aa4b628 DV |
11390 | config->save_connector_encoders = |
11391 | kcalloc(dev->mode_config.num_connector, | |
11392 | sizeof(struct drm_encoder *), GFP_KERNEL); | |
11393 | if (!config->save_connector_encoders) | |
85f9eb71 DV |
11394 | return -ENOMEM; |
11395 | ||
11396 | /* Copy data. Note that driver private data is not affected. | |
11397 | * Should anything bad happen only the expected state is | |
11398 | * restored, not the drivers personal bookkeeping. | |
11399 | */ | |
7668851f | 11400 | count = 0; |
70e1e0ec | 11401 | for_each_crtc(dev, crtc) { |
83d65738 | 11402 | config->save_crtc_enabled[count++] = crtc->state->enable; |
7668851f VS |
11403 | } |
11404 | ||
85f9eb71 DV |
11405 | count = 0; |
11406 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
1aa4b628 | 11407 | config->save_encoder_crtcs[count++] = encoder->crtc; |
85f9eb71 DV |
11408 | } |
11409 | ||
11410 | count = 0; | |
11411 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1aa4b628 | 11412 | config->save_connector_encoders[count++] = connector->encoder; |
85f9eb71 DV |
11413 | } |
11414 | ||
11415 | return 0; | |
11416 | } | |
11417 | ||
11418 | static void intel_set_config_restore_state(struct drm_device *dev, | |
11419 | struct intel_set_config *config) | |
11420 | { | |
7668851f | 11421 | struct intel_crtc *crtc; |
9a935856 DV |
11422 | struct intel_encoder *encoder; |
11423 | struct intel_connector *connector; | |
85f9eb71 DV |
11424 | int count; |
11425 | ||
7668851f | 11426 | count = 0; |
d3fcc808 | 11427 | for_each_intel_crtc(dev, crtc) { |
7668851f | 11428 | crtc->new_enabled = config->save_crtc_enabled[count++]; |
7bd0a8e7 VS |
11429 | |
11430 | if (crtc->new_enabled) | |
6e3c9717 | 11431 | crtc->new_config = crtc->config; |
7bd0a8e7 VS |
11432 | else |
11433 | crtc->new_config = NULL; | |
7668851f VS |
11434 | } |
11435 | ||
85f9eb71 | 11436 | count = 0; |
b2784e15 | 11437 | for_each_intel_encoder(dev, encoder) { |
9a935856 DV |
11438 | encoder->new_crtc = |
11439 | to_intel_crtc(config->save_encoder_crtcs[count++]); | |
85f9eb71 DV |
11440 | } |
11441 | ||
11442 | count = 0; | |
3a3371ff | 11443 | for_each_intel_connector(dev, connector) { |
9a935856 DV |
11444 | connector->new_encoder = |
11445 | to_intel_encoder(config->save_connector_encoders[count++]); | |
85f9eb71 DV |
11446 | } |
11447 | } | |
11448 | ||
e3de42b6 | 11449 | static bool |
2e57f47d | 11450 | is_crtc_connector_off(struct drm_mode_set *set) |
e3de42b6 ID |
11451 | { |
11452 | int i; | |
11453 | ||
2e57f47d CW |
11454 | if (set->num_connectors == 0) |
11455 | return false; | |
11456 | ||
11457 | if (WARN_ON(set->connectors == NULL)) | |
11458 | return false; | |
11459 | ||
11460 | for (i = 0; i < set->num_connectors; i++) | |
11461 | if (set->connectors[i]->encoder && | |
11462 | set->connectors[i]->encoder->crtc == set->crtc && | |
11463 | set->connectors[i]->dpms != DRM_MODE_DPMS_ON) | |
e3de42b6 ID |
11464 | return true; |
11465 | ||
11466 | return false; | |
11467 | } | |
11468 | ||
5e2b584e DV |
11469 | static void |
11470 | intel_set_config_compute_mode_changes(struct drm_mode_set *set, | |
11471 | struct intel_set_config *config) | |
11472 | { | |
11473 | ||
11474 | /* We should be able to check here if the fb has the same properties | |
11475 | * and then just flip_or_move it */ | |
2e57f47d CW |
11476 | if (is_crtc_connector_off(set)) { |
11477 | config->mode_changed = true; | |
f4510a27 | 11478 | } else if (set->crtc->primary->fb != set->fb) { |
3b150f08 MR |
11479 | /* |
11480 | * If we have no fb, we can only flip as long as the crtc is | |
11481 | * active, otherwise we need a full mode set. The crtc may | |
11482 | * be active if we've only disabled the primary plane, or | |
11483 | * in fastboot situations. | |
11484 | */ | |
f4510a27 | 11485 | if (set->crtc->primary->fb == NULL) { |
319d9827 JB |
11486 | struct intel_crtc *intel_crtc = |
11487 | to_intel_crtc(set->crtc); | |
11488 | ||
3b150f08 | 11489 | if (intel_crtc->active) { |
319d9827 JB |
11490 | DRM_DEBUG_KMS("crtc has no fb, will flip\n"); |
11491 | config->fb_changed = true; | |
11492 | } else { | |
11493 | DRM_DEBUG_KMS("inactive crtc, full mode set\n"); | |
11494 | config->mode_changed = true; | |
11495 | } | |
5e2b584e DV |
11496 | } else if (set->fb == NULL) { |
11497 | config->mode_changed = true; | |
72f4901e | 11498 | } else if (set->fb->pixel_format != |
f4510a27 | 11499 | set->crtc->primary->fb->pixel_format) { |
5e2b584e | 11500 | config->mode_changed = true; |
e3de42b6 | 11501 | } else { |
5e2b584e | 11502 | config->fb_changed = true; |
e3de42b6 | 11503 | } |
5e2b584e DV |
11504 | } |
11505 | ||
835c5873 | 11506 | if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) |
5e2b584e DV |
11507 | config->fb_changed = true; |
11508 | ||
11509 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { | |
11510 | DRM_DEBUG_KMS("modes are different, full mode set\n"); | |
11511 | drm_mode_debug_printmodeline(&set->crtc->mode); | |
11512 | drm_mode_debug_printmodeline(set->mode); | |
11513 | config->mode_changed = true; | |
11514 | } | |
a1d95703 CW |
11515 | |
11516 | DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n", | |
11517 | set->crtc->base.id, config->mode_changed, config->fb_changed); | |
5e2b584e DV |
11518 | } |
11519 | ||
2e431051 | 11520 | static int |
9a935856 DV |
11521 | intel_modeset_stage_output_state(struct drm_device *dev, |
11522 | struct drm_mode_set *set, | |
11523 | struct intel_set_config *config) | |
50f56119 | 11524 | { |
9a935856 DV |
11525 | struct intel_connector *connector; |
11526 | struct intel_encoder *encoder; | |
7668851f | 11527 | struct intel_crtc *crtc; |
f3f08572 | 11528 | int ro; |
50f56119 | 11529 | |
9abdda74 | 11530 | /* The upper layers ensure that we either disable a crtc or have a list |
9a935856 DV |
11531 | * of connectors. For paranoia, double-check this. */ |
11532 | WARN_ON(!set->fb && (set->num_connectors != 0)); | |
11533 | WARN_ON(set->fb && (set->num_connectors == 0)); | |
11534 | ||
3a3371ff | 11535 | for_each_intel_connector(dev, connector) { |
9a935856 DV |
11536 | /* Otherwise traverse passed in connector list and get encoders |
11537 | * for them. */ | |
50f56119 | 11538 | for (ro = 0; ro < set->num_connectors; ro++) { |
9a935856 | 11539 | if (set->connectors[ro] == &connector->base) { |
0e32b39c | 11540 | connector->new_encoder = intel_find_encoder(connector, to_intel_crtc(set->crtc)->pipe); |
50f56119 DV |
11541 | break; |
11542 | } | |
11543 | } | |
11544 | ||
9a935856 DV |
11545 | /* If we disable the crtc, disable all its connectors. Also, if |
11546 | * the connector is on the changing crtc but not on the new | |
11547 | * connector list, disable it. */ | |
11548 | if ((!set->fb || ro == set->num_connectors) && | |
11549 | connector->base.encoder && | |
11550 | connector->base.encoder->crtc == set->crtc) { | |
11551 | connector->new_encoder = NULL; | |
11552 | ||
11553 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", | |
11554 | connector->base.base.id, | |
c23cc417 | 11555 | connector->base.name); |
9a935856 DV |
11556 | } |
11557 | ||
11558 | ||
11559 | if (&connector->new_encoder->base != connector->base.encoder) { | |
10634189 ACO |
11560 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] encoder changed, full mode switch\n", |
11561 | connector->base.base.id, | |
11562 | connector->base.name); | |
5e2b584e | 11563 | config->mode_changed = true; |
50f56119 DV |
11564 | } |
11565 | } | |
9a935856 | 11566 | /* connector->new_encoder is now updated for all connectors. */ |
50f56119 | 11567 | |
9a935856 | 11568 | /* Update crtc of enabled connectors. */ |
3a3371ff | 11569 | for_each_intel_connector(dev, connector) { |
7668851f VS |
11570 | struct drm_crtc *new_crtc; |
11571 | ||
9a935856 | 11572 | if (!connector->new_encoder) |
50f56119 DV |
11573 | continue; |
11574 | ||
9a935856 | 11575 | new_crtc = connector->new_encoder->base.crtc; |
50f56119 DV |
11576 | |
11577 | for (ro = 0; ro < set->num_connectors; ro++) { | |
9a935856 | 11578 | if (set->connectors[ro] == &connector->base) |
50f56119 DV |
11579 | new_crtc = set->crtc; |
11580 | } | |
11581 | ||
11582 | /* Make sure the new CRTC will work with the encoder */ | |
14509916 TR |
11583 | if (!drm_encoder_crtc_ok(&connector->new_encoder->base, |
11584 | new_crtc)) { | |
5e2b584e | 11585 | return -EINVAL; |
50f56119 | 11586 | } |
0e32b39c | 11587 | connector->new_encoder->new_crtc = to_intel_crtc(new_crtc); |
9a935856 DV |
11588 | |
11589 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", | |
11590 | connector->base.base.id, | |
c23cc417 | 11591 | connector->base.name, |
9a935856 DV |
11592 | new_crtc->base.id); |
11593 | } | |
11594 | ||
11595 | /* Check for any encoders that needs to be disabled. */ | |
b2784e15 | 11596 | for_each_intel_encoder(dev, encoder) { |
5a65f358 | 11597 | int num_connectors = 0; |
3a3371ff | 11598 | for_each_intel_connector(dev, connector) { |
9a935856 DV |
11599 | if (connector->new_encoder == encoder) { |
11600 | WARN_ON(!connector->new_encoder->new_crtc); | |
5a65f358 | 11601 | num_connectors++; |
9a935856 DV |
11602 | } |
11603 | } | |
5a65f358 PZ |
11604 | |
11605 | if (num_connectors == 0) | |
11606 | encoder->new_crtc = NULL; | |
11607 | else if (num_connectors > 1) | |
11608 | return -EINVAL; | |
11609 | ||
9a935856 DV |
11610 | /* Only now check for crtc changes so we don't miss encoders |
11611 | * that will be disabled. */ | |
11612 | if (&encoder->new_crtc->base != encoder->base.crtc) { | |
10634189 ACO |
11613 | DRM_DEBUG_KMS("[ENCODER:%d:%s] crtc changed, full mode switch\n", |
11614 | encoder->base.base.id, | |
11615 | encoder->base.name); | |
5e2b584e | 11616 | config->mode_changed = true; |
50f56119 DV |
11617 | } |
11618 | } | |
9a935856 | 11619 | /* Now we've also updated encoder->new_crtc for all encoders. */ |
3a3371ff | 11620 | for_each_intel_connector(dev, connector) { |
0e32b39c DA |
11621 | if (connector->new_encoder) |
11622 | if (connector->new_encoder != connector->encoder) | |
11623 | connector->encoder = connector->new_encoder; | |
11624 | } | |
d3fcc808 | 11625 | for_each_intel_crtc(dev, crtc) { |
7668851f VS |
11626 | crtc->new_enabled = false; |
11627 | ||
b2784e15 | 11628 | for_each_intel_encoder(dev, encoder) { |
7668851f VS |
11629 | if (encoder->new_crtc == crtc) { |
11630 | crtc->new_enabled = true; | |
11631 | break; | |
11632 | } | |
11633 | } | |
11634 | ||
83d65738 | 11635 | if (crtc->new_enabled != crtc->base.state->enable) { |
10634189 ACO |
11636 | DRM_DEBUG_KMS("[CRTC:%d] %sabled, full mode switch\n", |
11637 | crtc->base.base.id, | |
7668851f VS |
11638 | crtc->new_enabled ? "en" : "dis"); |
11639 | config->mode_changed = true; | |
11640 | } | |
7bd0a8e7 VS |
11641 | |
11642 | if (crtc->new_enabled) | |
6e3c9717 | 11643 | crtc->new_config = crtc->config; |
7bd0a8e7 VS |
11644 | else |
11645 | crtc->new_config = NULL; | |
7668851f VS |
11646 | } |
11647 | ||
2e431051 DV |
11648 | return 0; |
11649 | } | |
11650 | ||
7d00a1f5 VS |
11651 | static void disable_crtc_nofb(struct intel_crtc *crtc) |
11652 | { | |
11653 | struct drm_device *dev = crtc->base.dev; | |
11654 | struct intel_encoder *encoder; | |
11655 | struct intel_connector *connector; | |
11656 | ||
11657 | DRM_DEBUG_KMS("Trying to restore without FB -> disabling pipe %c\n", | |
11658 | pipe_name(crtc->pipe)); | |
11659 | ||
3a3371ff | 11660 | for_each_intel_connector(dev, connector) { |
7d00a1f5 VS |
11661 | if (connector->new_encoder && |
11662 | connector->new_encoder->new_crtc == crtc) | |
11663 | connector->new_encoder = NULL; | |
11664 | } | |
11665 | ||
b2784e15 | 11666 | for_each_intel_encoder(dev, encoder) { |
7d00a1f5 VS |
11667 | if (encoder->new_crtc == crtc) |
11668 | encoder->new_crtc = NULL; | |
11669 | } | |
11670 | ||
11671 | crtc->new_enabled = false; | |
7bd0a8e7 | 11672 | crtc->new_config = NULL; |
7d00a1f5 VS |
11673 | } |
11674 | ||
2e431051 DV |
11675 | static int intel_crtc_set_config(struct drm_mode_set *set) |
11676 | { | |
11677 | struct drm_device *dev; | |
2e431051 DV |
11678 | struct drm_mode_set save_set; |
11679 | struct intel_set_config *config; | |
5cec258b | 11680 | struct intel_crtc_state *pipe_config; |
50f52756 | 11681 | unsigned modeset_pipes, prepare_pipes, disable_pipes; |
2e431051 | 11682 | int ret; |
2e431051 | 11683 | |
8d3e375e DV |
11684 | BUG_ON(!set); |
11685 | BUG_ON(!set->crtc); | |
11686 | BUG_ON(!set->crtc->helper_private); | |
2e431051 | 11687 | |
7e53f3a4 DV |
11688 | /* Enforce sane interface api - has been abused by the fb helper. */ |
11689 | BUG_ON(!set->mode && set->fb); | |
11690 | BUG_ON(set->fb && set->num_connectors == 0); | |
431e50f7 | 11691 | |
2e431051 DV |
11692 | if (set->fb) { |
11693 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", | |
11694 | set->crtc->base.id, set->fb->base.id, | |
11695 | (int)set->num_connectors, set->x, set->y); | |
11696 | } else { | |
11697 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); | |
2e431051 DV |
11698 | } |
11699 | ||
11700 | dev = set->crtc->dev; | |
11701 | ||
11702 | ret = -ENOMEM; | |
11703 | config = kzalloc(sizeof(*config), GFP_KERNEL); | |
11704 | if (!config) | |
11705 | goto out_config; | |
11706 | ||
11707 | ret = intel_set_config_save_state(dev, config); | |
11708 | if (ret) | |
11709 | goto out_config; | |
11710 | ||
11711 | save_set.crtc = set->crtc; | |
11712 | save_set.mode = &set->crtc->mode; | |
11713 | save_set.x = set->crtc->x; | |
11714 | save_set.y = set->crtc->y; | |
f4510a27 | 11715 | save_set.fb = set->crtc->primary->fb; |
2e431051 DV |
11716 | |
11717 | /* Compute whether we need a full modeset, only an fb base update or no | |
11718 | * change at all. In the future we might also check whether only the | |
11719 | * mode changed, e.g. for LVDS where we only change the panel fitter in | |
11720 | * such cases. */ | |
11721 | intel_set_config_compute_mode_changes(set, config); | |
11722 | ||
9a935856 | 11723 | ret = intel_modeset_stage_output_state(dev, set, config); |
2e431051 DV |
11724 | if (ret) |
11725 | goto fail; | |
11726 | ||
50f52756 JB |
11727 | pipe_config = intel_modeset_compute_config(set->crtc, set->mode, |
11728 | set->fb, | |
11729 | &modeset_pipes, | |
11730 | &prepare_pipes, | |
11731 | &disable_pipes); | |
20664591 | 11732 | if (IS_ERR(pipe_config)) { |
6ac0483b | 11733 | ret = PTR_ERR(pipe_config); |
50f52756 | 11734 | goto fail; |
20664591 | 11735 | } else if (pipe_config) { |
b9950a13 | 11736 | if (pipe_config->has_audio != |
6e3c9717 | 11737 | to_intel_crtc(set->crtc)->config->has_audio) |
20664591 JB |
11738 | config->mode_changed = true; |
11739 | ||
af15d2ce JB |
11740 | /* |
11741 | * Note we have an issue here with infoframes: current code | |
11742 | * only updates them on the full mode set path per hw | |
11743 | * requirements. So here we should be checking for any | |
11744 | * required changes and forcing a mode set. | |
11745 | */ | |
20664591 | 11746 | } |
50f52756 JB |
11747 | |
11748 | /* set_mode will free it in the mode_changed case */ | |
11749 | if (!config->mode_changed) | |
11750 | kfree(pipe_config); | |
11751 | ||
1f9954d0 JB |
11752 | intel_update_pipe_size(to_intel_crtc(set->crtc)); |
11753 | ||
5e2b584e | 11754 | if (config->mode_changed) { |
50f52756 JB |
11755 | ret = intel_set_mode_pipes(set->crtc, set->mode, |
11756 | set->x, set->y, set->fb, pipe_config, | |
11757 | modeset_pipes, prepare_pipes, | |
11758 | disable_pipes); | |
5e2b584e | 11759 | } else if (config->fb_changed) { |
3b150f08 | 11760 | struct intel_crtc *intel_crtc = to_intel_crtc(set->crtc); |
455a6808 GP |
11761 | struct drm_plane *primary = set->crtc->primary; |
11762 | int vdisplay, hdisplay; | |
3b150f08 | 11763 | |
455a6808 GP |
11764 | drm_crtc_get_hv_timing(set->mode, &hdisplay, &vdisplay); |
11765 | ret = primary->funcs->update_plane(primary, set->crtc, set->fb, | |
11766 | 0, 0, hdisplay, vdisplay, | |
11767 | set->x << 16, set->y << 16, | |
11768 | hdisplay << 16, vdisplay << 16); | |
3b150f08 MR |
11769 | |
11770 | /* | |
11771 | * We need to make sure the primary plane is re-enabled if it | |
11772 | * has previously been turned off. | |
11773 | */ | |
11774 | if (!intel_crtc->primary_enabled && ret == 0) { | |
11775 | WARN_ON(!intel_crtc->active); | |
fdd508a6 | 11776 | intel_enable_primary_hw_plane(set->crtc->primary, set->crtc); |
3b150f08 MR |
11777 | } |
11778 | ||
7ca51a3a JB |
11779 | /* |
11780 | * In the fastboot case this may be our only check of the | |
11781 | * state after boot. It would be better to only do it on | |
11782 | * the first update, but we don't have a nice way of doing that | |
11783 | * (and really, set_config isn't used much for high freq page | |
11784 | * flipping, so increasing its cost here shouldn't be a big | |
11785 | * deal). | |
11786 | */ | |
d330a953 | 11787 | if (i915.fastboot && ret == 0) |
7ca51a3a | 11788 | intel_modeset_check_state(set->crtc->dev); |
50f56119 DV |
11789 | } |
11790 | ||
2d05eae1 | 11791 | if (ret) { |
bf67dfeb DV |
11792 | DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n", |
11793 | set->crtc->base.id, ret); | |
50f56119 | 11794 | fail: |
2d05eae1 | 11795 | intel_set_config_restore_state(dev, config); |
50f56119 | 11796 | |
7d00a1f5 VS |
11797 | /* |
11798 | * HACK: if the pipe was on, but we didn't have a framebuffer, | |
11799 | * force the pipe off to avoid oopsing in the modeset code | |
11800 | * due to fb==NULL. This should only happen during boot since | |
11801 | * we don't yet reconstruct the FB from the hardware state. | |
11802 | */ | |
11803 | if (to_intel_crtc(save_set.crtc)->new_enabled && !save_set.fb) | |
11804 | disable_crtc_nofb(to_intel_crtc(save_set.crtc)); | |
11805 | ||
2d05eae1 CW |
11806 | /* Try to restore the config */ |
11807 | if (config->mode_changed && | |
11808 | intel_set_mode(save_set.crtc, save_set.mode, | |
11809 | save_set.x, save_set.y, save_set.fb)) | |
11810 | DRM_ERROR("failed to restore config after modeset failure\n"); | |
11811 | } | |
50f56119 | 11812 | |
d9e55608 DV |
11813 | out_config: |
11814 | intel_set_config_free(config); | |
50f56119 DV |
11815 | return ret; |
11816 | } | |
f6e5b160 CW |
11817 | |
11818 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
f6e5b160 | 11819 | .gamma_set = intel_crtc_gamma_set, |
50f56119 | 11820 | .set_config = intel_crtc_set_config, |
f6e5b160 CW |
11821 | .destroy = intel_crtc_destroy, |
11822 | .page_flip = intel_crtc_page_flip, | |
1356837e MR |
11823 | .atomic_duplicate_state = intel_crtc_duplicate_state, |
11824 | .atomic_destroy_state = intel_crtc_destroy_state, | |
f6e5b160 CW |
11825 | }; |
11826 | ||
5358901f DV |
11827 | static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv, |
11828 | struct intel_shared_dpll *pll, | |
11829 | struct intel_dpll_hw_state *hw_state) | |
ee7b9f93 | 11830 | { |
5358901f | 11831 | uint32_t val; |
ee7b9f93 | 11832 | |
f458ebbc | 11833 | if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PLLS)) |
bd2bb1b9 PZ |
11834 | return false; |
11835 | ||
5358901f | 11836 | val = I915_READ(PCH_DPLL(pll->id)); |
66e985c0 DV |
11837 | hw_state->dpll = val; |
11838 | hw_state->fp0 = I915_READ(PCH_FP0(pll->id)); | |
11839 | hw_state->fp1 = I915_READ(PCH_FP1(pll->id)); | |
5358901f DV |
11840 | |
11841 | return val & DPLL_VCO_ENABLE; | |
11842 | } | |
11843 | ||
15bdd4cf DV |
11844 | static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv, |
11845 | struct intel_shared_dpll *pll) | |
11846 | { | |
3e369b76 ACO |
11847 | I915_WRITE(PCH_FP0(pll->id), pll->config.hw_state.fp0); |
11848 | I915_WRITE(PCH_FP1(pll->id), pll->config.hw_state.fp1); | |
15bdd4cf DV |
11849 | } |
11850 | ||
e7b903d2 DV |
11851 | static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv, |
11852 | struct intel_shared_dpll *pll) | |
11853 | { | |
e7b903d2 | 11854 | /* PCH refclock must be enabled first */ |
89eff4be | 11855 | ibx_assert_pch_refclk_enabled(dev_priv); |
e7b903d2 | 11856 | |
3e369b76 | 11857 | I915_WRITE(PCH_DPLL(pll->id), pll->config.hw_state.dpll); |
15bdd4cf DV |
11858 | |
11859 | /* Wait for the clocks to stabilize. */ | |
11860 | POSTING_READ(PCH_DPLL(pll->id)); | |
11861 | udelay(150); | |
11862 | ||
11863 | /* The pixel multiplier can only be updated once the | |
11864 | * DPLL is enabled and the clocks are stable. | |
11865 | * | |
11866 | * So write it again. | |
11867 | */ | |
3e369b76 | 11868 | I915_WRITE(PCH_DPLL(pll->id), pll->config.hw_state.dpll); |
15bdd4cf | 11869 | POSTING_READ(PCH_DPLL(pll->id)); |
e7b903d2 DV |
11870 | udelay(200); |
11871 | } | |
11872 | ||
11873 | static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv, | |
11874 | struct intel_shared_dpll *pll) | |
11875 | { | |
11876 | struct drm_device *dev = dev_priv->dev; | |
11877 | struct intel_crtc *crtc; | |
e7b903d2 DV |
11878 | |
11879 | /* Make sure no transcoder isn't still depending on us. */ | |
d3fcc808 | 11880 | for_each_intel_crtc(dev, crtc) { |
e7b903d2 DV |
11881 | if (intel_crtc_to_shared_dpll(crtc) == pll) |
11882 | assert_pch_transcoder_disabled(dev_priv, crtc->pipe); | |
ee7b9f93 JB |
11883 | } |
11884 | ||
15bdd4cf DV |
11885 | I915_WRITE(PCH_DPLL(pll->id), 0); |
11886 | POSTING_READ(PCH_DPLL(pll->id)); | |
e7b903d2 DV |
11887 | udelay(200); |
11888 | } | |
11889 | ||
46edb027 DV |
11890 | static char *ibx_pch_dpll_names[] = { |
11891 | "PCH DPLL A", | |
11892 | "PCH DPLL B", | |
11893 | }; | |
11894 | ||
7c74ade1 | 11895 | static void ibx_pch_dpll_init(struct drm_device *dev) |
ee7b9f93 | 11896 | { |
e7b903d2 | 11897 | struct drm_i915_private *dev_priv = dev->dev_private; |
ee7b9f93 JB |
11898 | int i; |
11899 | ||
7c74ade1 | 11900 | dev_priv->num_shared_dpll = 2; |
ee7b9f93 | 11901 | |
e72f9fbf | 11902 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
46edb027 DV |
11903 | dev_priv->shared_dplls[i].id = i; |
11904 | dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i]; | |
15bdd4cf | 11905 | dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set; |
e7b903d2 DV |
11906 | dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable; |
11907 | dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable; | |
5358901f DV |
11908 | dev_priv->shared_dplls[i].get_hw_state = |
11909 | ibx_pch_dpll_get_hw_state; | |
ee7b9f93 JB |
11910 | } |
11911 | } | |
11912 | ||
7c74ade1 DV |
11913 | static void intel_shared_dpll_init(struct drm_device *dev) |
11914 | { | |
e7b903d2 | 11915 | struct drm_i915_private *dev_priv = dev->dev_private; |
7c74ade1 | 11916 | |
9cd86933 DV |
11917 | if (HAS_DDI(dev)) |
11918 | intel_ddi_pll_init(dev); | |
11919 | else if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
7c74ade1 DV |
11920 | ibx_pch_dpll_init(dev); |
11921 | else | |
11922 | dev_priv->num_shared_dpll = 0; | |
11923 | ||
11924 | BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS); | |
7c74ade1 DV |
11925 | } |
11926 | ||
6beb8c23 MR |
11927 | /** |
11928 | * intel_prepare_plane_fb - Prepare fb for usage on plane | |
11929 | * @plane: drm plane to prepare for | |
11930 | * @fb: framebuffer to prepare for presentation | |
11931 | * | |
11932 | * Prepares a framebuffer for usage on a display plane. Generally this | |
11933 | * involves pinning the underlying object and updating the frontbuffer tracking | |
11934 | * bits. Some older platforms need special physical address handling for | |
11935 | * cursor planes. | |
11936 | * | |
11937 | * Returns 0 on success, negative error code on failure. | |
11938 | */ | |
11939 | int | |
11940 | intel_prepare_plane_fb(struct drm_plane *plane, | |
d136dfee TU |
11941 | struct drm_framebuffer *fb, |
11942 | const struct drm_plane_state *new_state) | |
465c120c MR |
11943 | { |
11944 | struct drm_device *dev = plane->dev; | |
6beb8c23 MR |
11945 | struct intel_plane *intel_plane = to_intel_plane(plane); |
11946 | enum pipe pipe = intel_plane->pipe; | |
11947 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
11948 | struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->fb); | |
11949 | unsigned frontbuffer_bits = 0; | |
11950 | int ret = 0; | |
465c120c | 11951 | |
ea2c67bb | 11952 | if (!obj) |
465c120c MR |
11953 | return 0; |
11954 | ||
6beb8c23 MR |
11955 | switch (plane->type) { |
11956 | case DRM_PLANE_TYPE_PRIMARY: | |
11957 | frontbuffer_bits = INTEL_FRONTBUFFER_PRIMARY(pipe); | |
11958 | break; | |
11959 | case DRM_PLANE_TYPE_CURSOR: | |
11960 | frontbuffer_bits = INTEL_FRONTBUFFER_CURSOR(pipe); | |
11961 | break; | |
11962 | case DRM_PLANE_TYPE_OVERLAY: | |
11963 | frontbuffer_bits = INTEL_FRONTBUFFER_SPRITE(pipe); | |
11964 | break; | |
11965 | } | |
465c120c | 11966 | |
6beb8c23 | 11967 | mutex_lock(&dev->struct_mutex); |
465c120c | 11968 | |
6beb8c23 MR |
11969 | if (plane->type == DRM_PLANE_TYPE_CURSOR && |
11970 | INTEL_INFO(dev)->cursor_needs_physical) { | |
11971 | int align = IS_I830(dev) ? 16 * 1024 : 256; | |
11972 | ret = i915_gem_object_attach_phys(obj, align); | |
11973 | if (ret) | |
11974 | DRM_DEBUG_KMS("failed to attach phys object\n"); | |
11975 | } else { | |
11976 | ret = intel_pin_and_fence_fb_obj(plane, fb, NULL); | |
11977 | } | |
465c120c | 11978 | |
6beb8c23 MR |
11979 | if (ret == 0) |
11980 | i915_gem_track_fb(old_obj, obj, frontbuffer_bits); | |
fdd508a6 | 11981 | |
4c34574f | 11982 | mutex_unlock(&dev->struct_mutex); |
465c120c | 11983 | |
6beb8c23 MR |
11984 | return ret; |
11985 | } | |
11986 | ||
38f3ce3a MR |
11987 | /** |
11988 | * intel_cleanup_plane_fb - Cleans up an fb after plane use | |
11989 | * @plane: drm plane to clean up for | |
11990 | * @fb: old framebuffer that was on plane | |
11991 | * | |
11992 | * Cleans up a framebuffer that has just been removed from a plane. | |
11993 | */ | |
11994 | void | |
11995 | intel_cleanup_plane_fb(struct drm_plane *plane, | |
d136dfee TU |
11996 | struct drm_framebuffer *fb, |
11997 | const struct drm_plane_state *old_state) | |
38f3ce3a MR |
11998 | { |
11999 | struct drm_device *dev = plane->dev; | |
12000 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
12001 | ||
12002 | if (WARN_ON(!obj)) | |
12003 | return; | |
12004 | ||
12005 | if (plane->type != DRM_PLANE_TYPE_CURSOR || | |
12006 | !INTEL_INFO(dev)->cursor_needs_physical) { | |
12007 | mutex_lock(&dev->struct_mutex); | |
12008 | intel_unpin_fb_obj(obj); | |
12009 | mutex_unlock(&dev->struct_mutex); | |
12010 | } | |
465c120c MR |
12011 | } |
12012 | ||
12013 | static int | |
3c692a41 GP |
12014 | intel_check_primary_plane(struct drm_plane *plane, |
12015 | struct intel_plane_state *state) | |
12016 | { | |
32b7eeec MR |
12017 | struct drm_device *dev = plane->dev; |
12018 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2b875c22 | 12019 | struct drm_crtc *crtc = state->base.crtc; |
ea2c67bb | 12020 | struct intel_crtc *intel_crtc; |
2b875c22 | 12021 | struct drm_framebuffer *fb = state->base.fb; |
3c692a41 GP |
12022 | struct drm_rect *dest = &state->dst; |
12023 | struct drm_rect *src = &state->src; | |
12024 | const struct drm_rect *clip = &state->clip; | |
465c120c MR |
12025 | int ret; |
12026 | ||
ea2c67bb MR |
12027 | crtc = crtc ? crtc : plane->crtc; |
12028 | intel_crtc = to_intel_crtc(crtc); | |
12029 | ||
c59cb179 MR |
12030 | ret = drm_plane_helper_check_update(plane, crtc, fb, |
12031 | src, dest, clip, | |
12032 | DRM_PLANE_HELPER_NO_SCALING, | |
12033 | DRM_PLANE_HELPER_NO_SCALING, | |
12034 | false, true, &state->visible); | |
12035 | if (ret) | |
12036 | return ret; | |
465c120c | 12037 | |
32b7eeec MR |
12038 | if (intel_crtc->active) { |
12039 | intel_crtc->atomic.wait_for_flips = true; | |
12040 | ||
12041 | /* | |
12042 | * FBC does not work on some platforms for rotated | |
12043 | * planes, so disable it when rotation is not 0 and | |
12044 | * update it when rotation is set back to 0. | |
12045 | * | |
12046 | * FIXME: This is redundant with the fbc update done in | |
12047 | * the primary plane enable function except that that | |
12048 | * one is done too late. We eventually need to unify | |
12049 | * this. | |
12050 | */ | |
12051 | if (intel_crtc->primary_enabled && | |
12052 | INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev) && | |
e35fef21 | 12053 | dev_priv->fbc.crtc == intel_crtc && |
8e7d688b | 12054 | state->base.rotation != BIT(DRM_ROTATE_0)) { |
32b7eeec MR |
12055 | intel_crtc->atomic.disable_fbc = true; |
12056 | } | |
12057 | ||
12058 | if (state->visible) { | |
12059 | /* | |
12060 | * BDW signals flip done immediately if the plane | |
12061 | * is disabled, even if the plane enable is already | |
12062 | * armed to occur at the next vblank :( | |
12063 | */ | |
12064 | if (IS_BROADWELL(dev) && !intel_crtc->primary_enabled) | |
12065 | intel_crtc->atomic.wait_vblank = true; | |
12066 | } | |
12067 | ||
12068 | intel_crtc->atomic.fb_bits |= | |
12069 | INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe); | |
12070 | ||
12071 | intel_crtc->atomic.update_fbc = true; | |
0fda6568 TU |
12072 | |
12073 | /* Update watermarks on tiling changes. */ | |
12074 | if (!plane->state->fb || !state->base.fb || | |
12075 | plane->state->fb->modifier[0] != | |
12076 | state->base.fb->modifier[0]) | |
12077 | intel_crtc->atomic.update_wm = true; | |
ccc759dc GP |
12078 | } |
12079 | ||
14af293f GP |
12080 | return 0; |
12081 | } | |
12082 | ||
12083 | static void | |
12084 | intel_commit_primary_plane(struct drm_plane *plane, | |
12085 | struct intel_plane_state *state) | |
12086 | { | |
2b875c22 MR |
12087 | struct drm_crtc *crtc = state->base.crtc; |
12088 | struct drm_framebuffer *fb = state->base.fb; | |
12089 | struct drm_device *dev = plane->dev; | |
14af293f | 12090 | struct drm_i915_private *dev_priv = dev->dev_private; |
ea2c67bb | 12091 | struct intel_crtc *intel_crtc; |
14af293f | 12092 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
14af293f GP |
12093 | struct intel_plane *intel_plane = to_intel_plane(plane); |
12094 | struct drm_rect *src = &state->src; | |
12095 | ||
ea2c67bb MR |
12096 | crtc = crtc ? crtc : plane->crtc; |
12097 | intel_crtc = to_intel_crtc(crtc); | |
cf4c7c12 MR |
12098 | |
12099 | plane->fb = fb; | |
9dc806fc MR |
12100 | crtc->x = src->x1 >> 16; |
12101 | crtc->y = src->y1 >> 16; | |
ccc759dc | 12102 | |
ccc759dc | 12103 | intel_plane->obj = obj; |
4c34574f | 12104 | |
ccc759dc | 12105 | if (intel_crtc->active) { |
ccc759dc | 12106 | if (state->visible) { |
ccc759dc GP |
12107 | /* FIXME: kill this fastboot hack */ |
12108 | intel_update_pipe_size(intel_crtc); | |
465c120c | 12109 | |
ccc759dc | 12110 | intel_crtc->primary_enabled = true; |
465c120c | 12111 | |
ccc759dc GP |
12112 | dev_priv->display.update_primary_plane(crtc, plane->fb, |
12113 | crtc->x, crtc->y); | |
ccc759dc GP |
12114 | } else { |
12115 | /* | |
12116 | * If clipping results in a non-visible primary plane, | |
12117 | * we'll disable the primary plane. Note that this is | |
12118 | * a bit different than what happens if userspace | |
12119 | * explicitly disables the plane by passing fb=0 | |
12120 | * because plane->fb still gets set and pinned. | |
12121 | */ | |
12122 | intel_disable_primary_hw_plane(plane, crtc); | |
48404c1e | 12123 | } |
ccc759dc | 12124 | } |
465c120c MR |
12125 | } |
12126 | ||
32b7eeec | 12127 | static void intel_begin_crtc_commit(struct drm_crtc *crtc) |
3c692a41 | 12128 | { |
32b7eeec | 12129 | struct drm_device *dev = crtc->dev; |
140fd38d | 12130 | struct drm_i915_private *dev_priv = dev->dev_private; |
3c692a41 | 12131 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
ea2c67bb MR |
12132 | struct intel_plane *intel_plane; |
12133 | struct drm_plane *p; | |
12134 | unsigned fb_bits = 0; | |
12135 | ||
12136 | /* Track fb's for any planes being disabled */ | |
12137 | list_for_each_entry(p, &dev->mode_config.plane_list, head) { | |
12138 | intel_plane = to_intel_plane(p); | |
12139 | ||
12140 | if (intel_crtc->atomic.disabled_planes & | |
12141 | (1 << drm_plane_index(p))) { | |
12142 | switch (p->type) { | |
12143 | case DRM_PLANE_TYPE_PRIMARY: | |
12144 | fb_bits = INTEL_FRONTBUFFER_PRIMARY(intel_plane->pipe); | |
12145 | break; | |
12146 | case DRM_PLANE_TYPE_CURSOR: | |
12147 | fb_bits = INTEL_FRONTBUFFER_CURSOR(intel_plane->pipe); | |
12148 | break; | |
12149 | case DRM_PLANE_TYPE_OVERLAY: | |
12150 | fb_bits = INTEL_FRONTBUFFER_SPRITE(intel_plane->pipe); | |
12151 | break; | |
12152 | } | |
3c692a41 | 12153 | |
ea2c67bb MR |
12154 | mutex_lock(&dev->struct_mutex); |
12155 | i915_gem_track_fb(intel_fb_obj(p->fb), NULL, fb_bits); | |
12156 | mutex_unlock(&dev->struct_mutex); | |
12157 | } | |
12158 | } | |
3c692a41 | 12159 | |
32b7eeec MR |
12160 | if (intel_crtc->atomic.wait_for_flips) |
12161 | intel_crtc_wait_for_pending_flips(crtc); | |
3c692a41 | 12162 | |
32b7eeec MR |
12163 | if (intel_crtc->atomic.disable_fbc) |
12164 | intel_fbc_disable(dev); | |
3c692a41 | 12165 | |
32b7eeec MR |
12166 | if (intel_crtc->atomic.pre_disable_primary) |
12167 | intel_pre_disable_primary(crtc); | |
3c692a41 | 12168 | |
32b7eeec MR |
12169 | if (intel_crtc->atomic.update_wm) |
12170 | intel_update_watermarks(crtc); | |
3c692a41 | 12171 | |
32b7eeec | 12172 | intel_runtime_pm_get(dev_priv); |
3c692a41 | 12173 | |
c34c9ee4 MR |
12174 | /* Perform vblank evasion around commit operation */ |
12175 | if (intel_crtc->active) | |
12176 | intel_crtc->atomic.evade = | |
12177 | intel_pipe_update_start(intel_crtc, | |
12178 | &intel_crtc->atomic.start_vbl_count); | |
32b7eeec MR |
12179 | } |
12180 | ||
12181 | static void intel_finish_crtc_commit(struct drm_crtc *crtc) | |
12182 | { | |
12183 | struct drm_device *dev = crtc->dev; | |
12184 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12185 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
12186 | struct drm_plane *p; | |
12187 | ||
c34c9ee4 MR |
12188 | if (intel_crtc->atomic.evade) |
12189 | intel_pipe_update_end(intel_crtc, | |
12190 | intel_crtc->atomic.start_vbl_count); | |
3c692a41 | 12191 | |
140fd38d | 12192 | intel_runtime_pm_put(dev_priv); |
3c692a41 | 12193 | |
32b7eeec MR |
12194 | if (intel_crtc->atomic.wait_vblank) |
12195 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
12196 | ||
12197 | intel_frontbuffer_flip(dev, intel_crtc->atomic.fb_bits); | |
12198 | ||
12199 | if (intel_crtc->atomic.update_fbc) { | |
ccc759dc | 12200 | mutex_lock(&dev->struct_mutex); |
7ff0ebcc | 12201 | intel_fbc_update(dev); |
ccc759dc | 12202 | mutex_unlock(&dev->struct_mutex); |
38f3ce3a | 12203 | } |
3c692a41 | 12204 | |
32b7eeec MR |
12205 | if (intel_crtc->atomic.post_enable_primary) |
12206 | intel_post_enable_primary(crtc); | |
3c692a41 | 12207 | |
32b7eeec MR |
12208 | drm_for_each_legacy_plane(p, &dev->mode_config.plane_list) |
12209 | if (intel_crtc->atomic.update_sprite_watermarks & drm_plane_index(p)) | |
12210 | intel_update_sprite_watermarks(p, crtc, 0, 0, 0, | |
12211 | false, false); | |
12212 | ||
12213 | memset(&intel_crtc->atomic, 0, sizeof(intel_crtc->atomic)); | |
3c692a41 GP |
12214 | } |
12215 | ||
cf4c7c12 | 12216 | /** |
4a3b8769 MR |
12217 | * intel_plane_destroy - destroy a plane |
12218 | * @plane: plane to destroy | |
cf4c7c12 | 12219 | * |
4a3b8769 MR |
12220 | * Common destruction function for all types of planes (primary, cursor, |
12221 | * sprite). | |
cf4c7c12 | 12222 | */ |
4a3b8769 | 12223 | void intel_plane_destroy(struct drm_plane *plane) |
465c120c MR |
12224 | { |
12225 | struct intel_plane *intel_plane = to_intel_plane(plane); | |
12226 | drm_plane_cleanup(plane); | |
12227 | kfree(intel_plane); | |
12228 | } | |
12229 | ||
65a3fea0 | 12230 | const struct drm_plane_funcs intel_plane_funcs = { |
ff42e093 DV |
12231 | .update_plane = drm_plane_helper_update, |
12232 | .disable_plane = drm_plane_helper_disable, | |
3d7d6510 | 12233 | .destroy = intel_plane_destroy, |
c196e1d6 | 12234 | .set_property = drm_atomic_helper_plane_set_property, |
a98b3431 MR |
12235 | .atomic_get_property = intel_plane_atomic_get_property, |
12236 | .atomic_set_property = intel_plane_atomic_set_property, | |
ea2c67bb MR |
12237 | .atomic_duplicate_state = intel_plane_duplicate_state, |
12238 | .atomic_destroy_state = intel_plane_destroy_state, | |
12239 | ||
465c120c MR |
12240 | }; |
12241 | ||
12242 | static struct drm_plane *intel_primary_plane_create(struct drm_device *dev, | |
12243 | int pipe) | |
12244 | { | |
12245 | struct intel_plane *primary; | |
8e7d688b | 12246 | struct intel_plane_state *state; |
465c120c MR |
12247 | const uint32_t *intel_primary_formats; |
12248 | int num_formats; | |
12249 | ||
12250 | primary = kzalloc(sizeof(*primary), GFP_KERNEL); | |
12251 | if (primary == NULL) | |
12252 | return NULL; | |
12253 | ||
8e7d688b MR |
12254 | state = intel_create_plane_state(&primary->base); |
12255 | if (!state) { | |
ea2c67bb MR |
12256 | kfree(primary); |
12257 | return NULL; | |
12258 | } | |
8e7d688b | 12259 | primary->base.state = &state->base; |
ea2c67bb | 12260 | |
465c120c MR |
12261 | primary->can_scale = false; |
12262 | primary->max_downscale = 1; | |
12263 | primary->pipe = pipe; | |
12264 | primary->plane = pipe; | |
c59cb179 MR |
12265 | primary->check_plane = intel_check_primary_plane; |
12266 | primary->commit_plane = intel_commit_primary_plane; | |
465c120c MR |
12267 | if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) |
12268 | primary->plane = !pipe; | |
12269 | ||
12270 | if (INTEL_INFO(dev)->gen <= 3) { | |
12271 | intel_primary_formats = intel_primary_formats_gen2; | |
12272 | num_formats = ARRAY_SIZE(intel_primary_formats_gen2); | |
12273 | } else { | |
12274 | intel_primary_formats = intel_primary_formats_gen4; | |
12275 | num_formats = ARRAY_SIZE(intel_primary_formats_gen4); | |
12276 | } | |
12277 | ||
12278 | drm_universal_plane_init(dev, &primary->base, 0, | |
65a3fea0 | 12279 | &intel_plane_funcs, |
465c120c MR |
12280 | intel_primary_formats, num_formats, |
12281 | DRM_PLANE_TYPE_PRIMARY); | |
48404c1e SJ |
12282 | |
12283 | if (INTEL_INFO(dev)->gen >= 4) { | |
12284 | if (!dev->mode_config.rotation_property) | |
12285 | dev->mode_config.rotation_property = | |
12286 | drm_mode_create_rotation_property(dev, | |
12287 | BIT(DRM_ROTATE_0) | | |
12288 | BIT(DRM_ROTATE_180)); | |
12289 | if (dev->mode_config.rotation_property) | |
12290 | drm_object_attach_property(&primary->base.base, | |
12291 | dev->mode_config.rotation_property, | |
8e7d688b | 12292 | state->base.rotation); |
48404c1e SJ |
12293 | } |
12294 | ||
ea2c67bb MR |
12295 | drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs); |
12296 | ||
465c120c MR |
12297 | return &primary->base; |
12298 | } | |
12299 | ||
3d7d6510 | 12300 | static int |
852e787c GP |
12301 | intel_check_cursor_plane(struct drm_plane *plane, |
12302 | struct intel_plane_state *state) | |
3d7d6510 | 12303 | { |
2b875c22 | 12304 | struct drm_crtc *crtc = state->base.crtc; |
ea2c67bb | 12305 | struct drm_device *dev = plane->dev; |
2b875c22 | 12306 | struct drm_framebuffer *fb = state->base.fb; |
852e787c GP |
12307 | struct drm_rect *dest = &state->dst; |
12308 | struct drm_rect *src = &state->src; | |
12309 | const struct drm_rect *clip = &state->clip; | |
757f9a3e | 12310 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
ea2c67bb | 12311 | struct intel_crtc *intel_crtc; |
757f9a3e GP |
12312 | unsigned stride; |
12313 | int ret; | |
3d7d6510 | 12314 | |
ea2c67bb MR |
12315 | crtc = crtc ? crtc : plane->crtc; |
12316 | intel_crtc = to_intel_crtc(crtc); | |
12317 | ||
757f9a3e | 12318 | ret = drm_plane_helper_check_update(plane, crtc, fb, |
852e787c | 12319 | src, dest, clip, |
3d7d6510 MR |
12320 | DRM_PLANE_HELPER_NO_SCALING, |
12321 | DRM_PLANE_HELPER_NO_SCALING, | |
852e787c | 12322 | true, true, &state->visible); |
757f9a3e GP |
12323 | if (ret) |
12324 | return ret; | |
12325 | ||
12326 | ||
12327 | /* if we want to turn off the cursor ignore width and height */ | |
12328 | if (!obj) | |
32b7eeec | 12329 | goto finish; |
757f9a3e | 12330 | |
757f9a3e | 12331 | /* Check for which cursor types we support */ |
ea2c67bb MR |
12332 | if (!cursor_size_ok(dev, state->base.crtc_w, state->base.crtc_h)) { |
12333 | DRM_DEBUG("Cursor dimension %dx%d not supported\n", | |
12334 | state->base.crtc_w, state->base.crtc_h); | |
757f9a3e GP |
12335 | return -EINVAL; |
12336 | } | |
12337 | ||
ea2c67bb MR |
12338 | stride = roundup_pow_of_two(state->base.crtc_w) * 4; |
12339 | if (obj->base.size < stride * state->base.crtc_h) { | |
757f9a3e GP |
12340 | DRM_DEBUG_KMS("buffer is too small\n"); |
12341 | return -ENOMEM; | |
12342 | } | |
12343 | ||
3a656b54 | 12344 | if (fb->modifier[0] != DRM_FORMAT_MOD_NONE) { |
757f9a3e GP |
12345 | DRM_DEBUG_KMS("cursor cannot be tiled\n"); |
12346 | ret = -EINVAL; | |
12347 | } | |
757f9a3e | 12348 | |
32b7eeec MR |
12349 | finish: |
12350 | if (intel_crtc->active) { | |
3749f463 | 12351 | if (plane->state->crtc_w != state->base.crtc_w) |
32b7eeec MR |
12352 | intel_crtc->atomic.update_wm = true; |
12353 | ||
12354 | intel_crtc->atomic.fb_bits |= | |
12355 | INTEL_FRONTBUFFER_CURSOR(intel_crtc->pipe); | |
12356 | } | |
12357 | ||
757f9a3e | 12358 | return ret; |
852e787c | 12359 | } |
3d7d6510 | 12360 | |
f4a2cf29 | 12361 | static void |
852e787c GP |
12362 | intel_commit_cursor_plane(struct drm_plane *plane, |
12363 | struct intel_plane_state *state) | |
12364 | { | |
2b875c22 | 12365 | struct drm_crtc *crtc = state->base.crtc; |
ea2c67bb MR |
12366 | struct drm_device *dev = plane->dev; |
12367 | struct intel_crtc *intel_crtc; | |
a919db90 | 12368 | struct intel_plane *intel_plane = to_intel_plane(plane); |
2b875c22 | 12369 | struct drm_i915_gem_object *obj = intel_fb_obj(state->base.fb); |
a912f12f | 12370 | uint32_t addr; |
852e787c | 12371 | |
ea2c67bb MR |
12372 | crtc = crtc ? crtc : plane->crtc; |
12373 | intel_crtc = to_intel_crtc(crtc); | |
12374 | ||
2b875c22 | 12375 | plane->fb = state->base.fb; |
ea2c67bb MR |
12376 | crtc->cursor_x = state->base.crtc_x; |
12377 | crtc->cursor_y = state->base.crtc_y; | |
12378 | ||
a919db90 SJ |
12379 | intel_plane->obj = obj; |
12380 | ||
a912f12f GP |
12381 | if (intel_crtc->cursor_bo == obj) |
12382 | goto update; | |
4ed91096 | 12383 | |
f4a2cf29 | 12384 | if (!obj) |
a912f12f | 12385 | addr = 0; |
f4a2cf29 | 12386 | else if (!INTEL_INFO(dev)->cursor_needs_physical) |
a912f12f | 12387 | addr = i915_gem_obj_ggtt_offset(obj); |
f4a2cf29 | 12388 | else |
a912f12f | 12389 | addr = obj->phys_handle->busaddr; |
852e787c | 12390 | |
a912f12f GP |
12391 | intel_crtc->cursor_addr = addr; |
12392 | intel_crtc->cursor_bo = obj; | |
12393 | update: | |
852e787c | 12394 | |
32b7eeec | 12395 | if (intel_crtc->active) |
a912f12f | 12396 | intel_crtc_update_cursor(crtc, state->visible); |
852e787c GP |
12397 | } |
12398 | ||
3d7d6510 MR |
12399 | static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev, |
12400 | int pipe) | |
12401 | { | |
12402 | struct intel_plane *cursor; | |
8e7d688b | 12403 | struct intel_plane_state *state; |
3d7d6510 MR |
12404 | |
12405 | cursor = kzalloc(sizeof(*cursor), GFP_KERNEL); | |
12406 | if (cursor == NULL) | |
12407 | return NULL; | |
12408 | ||
8e7d688b MR |
12409 | state = intel_create_plane_state(&cursor->base); |
12410 | if (!state) { | |
ea2c67bb MR |
12411 | kfree(cursor); |
12412 | return NULL; | |
12413 | } | |
8e7d688b | 12414 | cursor->base.state = &state->base; |
ea2c67bb | 12415 | |
3d7d6510 MR |
12416 | cursor->can_scale = false; |
12417 | cursor->max_downscale = 1; | |
12418 | cursor->pipe = pipe; | |
12419 | cursor->plane = pipe; | |
c59cb179 MR |
12420 | cursor->check_plane = intel_check_cursor_plane; |
12421 | cursor->commit_plane = intel_commit_cursor_plane; | |
3d7d6510 MR |
12422 | |
12423 | drm_universal_plane_init(dev, &cursor->base, 0, | |
65a3fea0 | 12424 | &intel_plane_funcs, |
3d7d6510 MR |
12425 | intel_cursor_formats, |
12426 | ARRAY_SIZE(intel_cursor_formats), | |
12427 | DRM_PLANE_TYPE_CURSOR); | |
4398ad45 VS |
12428 | |
12429 | if (INTEL_INFO(dev)->gen >= 4) { | |
12430 | if (!dev->mode_config.rotation_property) | |
12431 | dev->mode_config.rotation_property = | |
12432 | drm_mode_create_rotation_property(dev, | |
12433 | BIT(DRM_ROTATE_0) | | |
12434 | BIT(DRM_ROTATE_180)); | |
12435 | if (dev->mode_config.rotation_property) | |
12436 | drm_object_attach_property(&cursor->base.base, | |
12437 | dev->mode_config.rotation_property, | |
8e7d688b | 12438 | state->base.rotation); |
4398ad45 VS |
12439 | } |
12440 | ||
ea2c67bb MR |
12441 | drm_plane_helper_add(&cursor->base, &intel_plane_helper_funcs); |
12442 | ||
3d7d6510 MR |
12443 | return &cursor->base; |
12444 | } | |
12445 | ||
b358d0a6 | 12446 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 12447 | { |
fbee40df | 12448 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 12449 | struct intel_crtc *intel_crtc; |
f5de6e07 | 12450 | struct intel_crtc_state *crtc_state = NULL; |
3d7d6510 MR |
12451 | struct drm_plane *primary = NULL; |
12452 | struct drm_plane *cursor = NULL; | |
465c120c | 12453 | int i, ret; |
79e53945 | 12454 | |
955382f3 | 12455 | intel_crtc = kzalloc(sizeof(*intel_crtc), GFP_KERNEL); |
79e53945 JB |
12456 | if (intel_crtc == NULL) |
12457 | return; | |
12458 | ||
f5de6e07 ACO |
12459 | crtc_state = kzalloc(sizeof(*crtc_state), GFP_KERNEL); |
12460 | if (!crtc_state) | |
12461 | goto fail; | |
12462 | intel_crtc_set_state(intel_crtc, crtc_state); | |
07878248 | 12463 | crtc_state->base.crtc = &intel_crtc->base; |
f5de6e07 | 12464 | |
465c120c | 12465 | primary = intel_primary_plane_create(dev, pipe); |
3d7d6510 MR |
12466 | if (!primary) |
12467 | goto fail; | |
12468 | ||
12469 | cursor = intel_cursor_plane_create(dev, pipe); | |
12470 | if (!cursor) | |
12471 | goto fail; | |
12472 | ||
465c120c | 12473 | ret = drm_crtc_init_with_planes(dev, &intel_crtc->base, primary, |
3d7d6510 MR |
12474 | cursor, &intel_crtc_funcs); |
12475 | if (ret) | |
12476 | goto fail; | |
79e53945 JB |
12477 | |
12478 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
12479 | for (i = 0; i < 256; i++) { |
12480 | intel_crtc->lut_r[i] = i; | |
12481 | intel_crtc->lut_g[i] = i; | |
12482 | intel_crtc->lut_b[i] = i; | |
12483 | } | |
12484 | ||
1f1c2e24 VS |
12485 | /* |
12486 | * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port | |
8c0f92e1 | 12487 | * is hooked to pipe B. Hence we want plane A feeding pipe B. |
1f1c2e24 | 12488 | */ |
80824003 JB |
12489 | intel_crtc->pipe = pipe; |
12490 | intel_crtc->plane = pipe; | |
3a77c4c4 | 12491 | if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) { |
28c97730 | 12492 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 12493 | intel_crtc->plane = !pipe; |
80824003 JB |
12494 | } |
12495 | ||
4b0e333e CW |
12496 | intel_crtc->cursor_base = ~0; |
12497 | intel_crtc->cursor_cntl = ~0; | |
dc41c154 | 12498 | intel_crtc->cursor_size = ~0; |
8d7849db | 12499 | |
22fd0fab JB |
12500 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
12501 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
12502 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
12503 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
12504 | ||
9362c7c5 ACO |
12505 | INIT_WORK(&intel_crtc->mmio_flip.work, intel_mmio_flip_work_func); |
12506 | ||
79e53945 | 12507 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
87b6b101 DV |
12508 | |
12509 | WARN_ON(drm_crtc_index(&intel_crtc->base) != intel_crtc->pipe); | |
3d7d6510 MR |
12510 | return; |
12511 | ||
12512 | fail: | |
12513 | if (primary) | |
12514 | drm_plane_cleanup(primary); | |
12515 | if (cursor) | |
12516 | drm_plane_cleanup(cursor); | |
f5de6e07 | 12517 | kfree(crtc_state); |
3d7d6510 | 12518 | kfree(intel_crtc); |
79e53945 JB |
12519 | } |
12520 | ||
752aa88a JB |
12521 | enum pipe intel_get_pipe_from_connector(struct intel_connector *connector) |
12522 | { | |
12523 | struct drm_encoder *encoder = connector->base.encoder; | |
6e9f798d | 12524 | struct drm_device *dev = connector->base.dev; |
752aa88a | 12525 | |
51fd371b | 12526 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
752aa88a | 12527 | |
d3babd3f | 12528 | if (!encoder || WARN_ON(!encoder->crtc)) |
752aa88a JB |
12529 | return INVALID_PIPE; |
12530 | ||
12531 | return to_intel_crtc(encoder->crtc)->pipe; | |
12532 | } | |
12533 | ||
08d7b3d1 | 12534 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 12535 | struct drm_file *file) |
08d7b3d1 | 12536 | { |
08d7b3d1 | 12537 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
7707e653 | 12538 | struct drm_crtc *drmmode_crtc; |
c05422d5 | 12539 | struct intel_crtc *crtc; |
08d7b3d1 | 12540 | |
7707e653 | 12541 | drmmode_crtc = drm_crtc_find(dev, pipe_from_crtc_id->crtc_id); |
08d7b3d1 | 12542 | |
7707e653 | 12543 | if (!drmmode_crtc) { |
08d7b3d1 | 12544 | DRM_ERROR("no such CRTC id\n"); |
3f2c2057 | 12545 | return -ENOENT; |
08d7b3d1 CW |
12546 | } |
12547 | ||
7707e653 | 12548 | crtc = to_intel_crtc(drmmode_crtc); |
c05422d5 | 12549 | pipe_from_crtc_id->pipe = crtc->pipe; |
08d7b3d1 | 12550 | |
c05422d5 | 12551 | return 0; |
08d7b3d1 CW |
12552 | } |
12553 | ||
66a9278e | 12554 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 12555 | { |
66a9278e DV |
12556 | struct drm_device *dev = encoder->base.dev; |
12557 | struct intel_encoder *source_encoder; | |
79e53945 | 12558 | int index_mask = 0; |
79e53945 JB |
12559 | int entry = 0; |
12560 | ||
b2784e15 | 12561 | for_each_intel_encoder(dev, source_encoder) { |
bc079e8b | 12562 | if (encoders_cloneable(encoder, source_encoder)) |
66a9278e DV |
12563 | index_mask |= (1 << entry); |
12564 | ||
79e53945 JB |
12565 | entry++; |
12566 | } | |
4ef69c7a | 12567 | |
79e53945 JB |
12568 | return index_mask; |
12569 | } | |
12570 | ||
4d302442 CW |
12571 | static bool has_edp_a(struct drm_device *dev) |
12572 | { | |
12573 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12574 | ||
12575 | if (!IS_MOBILE(dev)) | |
12576 | return false; | |
12577 | ||
12578 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
12579 | return false; | |
12580 | ||
e3589908 | 12581 | if (IS_GEN5(dev) && (I915_READ(FUSE_STRAP) & ILK_eDP_A_DISABLE)) |
4d302442 CW |
12582 | return false; |
12583 | ||
12584 | return true; | |
12585 | } | |
12586 | ||
84b4e042 JB |
12587 | static bool intel_crt_present(struct drm_device *dev) |
12588 | { | |
12589 | struct drm_i915_private *dev_priv = dev->dev_private; | |
12590 | ||
884497ed DL |
12591 | if (INTEL_INFO(dev)->gen >= 9) |
12592 | return false; | |
12593 | ||
cf404ce4 | 12594 | if (IS_HSW_ULT(dev) || IS_BDW_ULT(dev)) |
84b4e042 JB |
12595 | return false; |
12596 | ||
12597 | if (IS_CHERRYVIEW(dev)) | |
12598 | return false; | |
12599 | ||
12600 | if (IS_VALLEYVIEW(dev) && !dev_priv->vbt.int_crt_support) | |
12601 | return false; | |
12602 | ||
12603 | return true; | |
12604 | } | |
12605 | ||
79e53945 JB |
12606 | static void intel_setup_outputs(struct drm_device *dev) |
12607 | { | |
725e30ad | 12608 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 12609 | struct intel_encoder *encoder; |
c6f95f27 | 12610 | struct drm_connector *connector; |
cb0953d7 | 12611 | bool dpd_is_edp = false; |
79e53945 | 12612 | |
c9093354 | 12613 | intel_lvds_init(dev); |
79e53945 | 12614 | |
84b4e042 | 12615 | if (intel_crt_present(dev)) |
79935fca | 12616 | intel_crt_init(dev); |
cb0953d7 | 12617 | |
affa9354 | 12618 | if (HAS_DDI(dev)) { |
0e72a5b5 ED |
12619 | int found; |
12620 | ||
de31facd JB |
12621 | /* |
12622 | * Haswell uses DDI functions to detect digital outputs. | |
12623 | * On SKL pre-D0 the strap isn't connected, so we assume | |
12624 | * it's there. | |
12625 | */ | |
0e72a5b5 | 12626 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; |
de31facd JB |
12627 | /* WaIgnoreDDIAStrap: skl */ |
12628 | if (found || | |
12629 | (IS_SKYLAKE(dev) && INTEL_REVID(dev) < SKL_REVID_D0)) | |
0e72a5b5 ED |
12630 | intel_ddi_init(dev, PORT_A); |
12631 | ||
12632 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
12633 | * register */ | |
12634 | found = I915_READ(SFUSE_STRAP); | |
12635 | ||
12636 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
12637 | intel_ddi_init(dev, PORT_B); | |
12638 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
12639 | intel_ddi_init(dev, PORT_C); | |
12640 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
12641 | intel_ddi_init(dev, PORT_D); | |
12642 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 | 12643 | int found; |
5d8a7752 | 12644 | dpd_is_edp = intel_dp_is_edp(dev, PORT_D); |
270b3042 DV |
12645 | |
12646 | if (has_edp_a(dev)) | |
12647 | intel_dp_init(dev, DP_A, PORT_A); | |
cb0953d7 | 12648 | |
dc0fa718 | 12649 | if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) { |
461ed3ca | 12650 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 12651 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 | 12652 | if (!found) |
e2debe91 | 12653 | intel_hdmi_init(dev, PCH_HDMIB, PORT_B); |
5eb08b69 | 12654 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 12655 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
12656 | } |
12657 | ||
dc0fa718 | 12658 | if (I915_READ(PCH_HDMIC) & SDVO_DETECTED) |
e2debe91 | 12659 | intel_hdmi_init(dev, PCH_HDMIC, PORT_C); |
30ad48b7 | 12660 | |
dc0fa718 | 12661 | if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED) |
e2debe91 | 12662 | intel_hdmi_init(dev, PCH_HDMID, PORT_D); |
30ad48b7 | 12663 | |
5eb08b69 | 12664 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 12665 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 12666 | |
270b3042 | 12667 | if (I915_READ(PCH_DP_D) & DP_DETECTED) |
ab9d7c30 | 12668 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
4a87d65d | 12669 | } else if (IS_VALLEYVIEW(dev)) { |
e17ac6db VS |
12670 | /* |
12671 | * The DP_DETECTED bit is the latched state of the DDC | |
12672 | * SDA pin at boot. However since eDP doesn't require DDC | |
12673 | * (no way to plug in a DP->HDMI dongle) the DDC pins for | |
12674 | * eDP ports may have been muxed to an alternate function. | |
12675 | * Thus we can't rely on the DP_DETECTED bit alone to detect | |
12676 | * eDP ports. Consult the VBT as well as DP_DETECTED to | |
12677 | * detect eDP ports. | |
12678 | */ | |
d2182a66 VS |
12679 | if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED && |
12680 | !intel_dp_is_edp(dev, PORT_B)) | |
585a94b8 AB |
12681 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB, |
12682 | PORT_B); | |
e17ac6db VS |
12683 | if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED || |
12684 | intel_dp_is_edp(dev, PORT_B)) | |
12685 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B); | |
585a94b8 | 12686 | |
d2182a66 VS |
12687 | if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED && |
12688 | !intel_dp_is_edp(dev, PORT_C)) | |
6f6005a5 JB |
12689 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC, |
12690 | PORT_C); | |
e17ac6db VS |
12691 | if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED || |
12692 | intel_dp_is_edp(dev, PORT_C)) | |
12693 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C); | |
19c03924 | 12694 | |
9418c1f1 | 12695 | if (IS_CHERRYVIEW(dev)) { |
e17ac6db | 12696 | if (I915_READ(VLV_DISPLAY_BASE + CHV_HDMID) & SDVO_DETECTED) |
9418c1f1 VS |
12697 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + CHV_HDMID, |
12698 | PORT_D); | |
e17ac6db VS |
12699 | /* eDP not supported on port D, so don't check VBT */ |
12700 | if (I915_READ(VLV_DISPLAY_BASE + DP_D) & DP_DETECTED) | |
12701 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_D, PORT_D); | |
9418c1f1 VS |
12702 | } |
12703 | ||
3cfca973 | 12704 | intel_dsi_init(dev); |
103a196f | 12705 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 12706 | bool found = false; |
7d57382e | 12707 | |
e2debe91 | 12708 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 12709 | DRM_DEBUG_KMS("probing SDVOB\n"); |
e2debe91 | 12710 | found = intel_sdvo_init(dev, GEN3_SDVOB, true); |
b01f2c3a JB |
12711 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
12712 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
e2debe91 | 12713 | intel_hdmi_init(dev, GEN4_HDMIB, PORT_B); |
b01f2c3a | 12714 | } |
27185ae1 | 12715 | |
e7281eab | 12716 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) |
ab9d7c30 | 12717 | intel_dp_init(dev, DP_B, PORT_B); |
725e30ad | 12718 | } |
13520b05 KH |
12719 | |
12720 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 12721 | |
e2debe91 | 12722 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 12723 | DRM_DEBUG_KMS("probing SDVOC\n"); |
e2debe91 | 12724 | found = intel_sdvo_init(dev, GEN3_SDVOC, false); |
b01f2c3a | 12725 | } |
27185ae1 | 12726 | |
e2debe91 | 12727 | if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) { |
27185ae1 | 12728 | |
b01f2c3a JB |
12729 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
12730 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
e2debe91 | 12731 | intel_hdmi_init(dev, GEN4_HDMIC, PORT_C); |
b01f2c3a | 12732 | } |
e7281eab | 12733 | if (SUPPORTS_INTEGRATED_DP(dev)) |
ab9d7c30 | 12734 | intel_dp_init(dev, DP_C, PORT_C); |
725e30ad | 12735 | } |
27185ae1 | 12736 | |
b01f2c3a | 12737 | if (SUPPORTS_INTEGRATED_DP(dev) && |
e7281eab | 12738 | (I915_READ(DP_D) & DP_DETECTED)) |
ab9d7c30 | 12739 | intel_dp_init(dev, DP_D, PORT_D); |
bad720ff | 12740 | } else if (IS_GEN2(dev)) |
79e53945 JB |
12741 | intel_dvo_init(dev); |
12742 | ||
103a196f | 12743 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
12744 | intel_tv_init(dev); |
12745 | ||
c6f95f27 MR |
12746 | /* |
12747 | * FIXME: We don't have full atomic support yet, but we want to be | |
12748 | * able to enable/test plane updates via the atomic interface in the | |
12749 | * meantime. However as soon as we flip DRIVER_ATOMIC on, the DRM core | |
12750 | * will take some atomic codepaths to lookup properties during | |
12751 | * drmModeGetConnector() that unconditionally dereference | |
12752 | * connector->state. | |
12753 | * | |
12754 | * We create a dummy connector state here for each connector to ensure | |
12755 | * the DRM core doesn't try to dereference a NULL connector->state. | |
12756 | * The actual connector properties will never be updated or contain | |
12757 | * useful information, but since we're doing this specifically for | |
12758 | * testing/debug of the plane operations (and only when a specific | |
12759 | * kernel module option is given), that shouldn't really matter. | |
12760 | * | |
12761 | * Once atomic support for crtc's + connectors lands, this loop should | |
12762 | * be removed since we'll be setting up real connector state, which | |
12763 | * will contain Intel-specific properties. | |
12764 | */ | |
12765 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { | |
12766 | list_for_each_entry(connector, | |
12767 | &dev->mode_config.connector_list, | |
12768 | head) { | |
12769 | if (!WARN_ON(connector->state)) { | |
12770 | connector->state = | |
12771 | kzalloc(sizeof(*connector->state), | |
12772 | GFP_KERNEL); | |
12773 | } | |
12774 | } | |
12775 | } | |
12776 | ||
0bc12bcb | 12777 | intel_psr_init(dev); |
7c8f8a70 | 12778 | |
b2784e15 | 12779 | for_each_intel_encoder(dev, encoder) { |
4ef69c7a CW |
12780 | encoder->base.possible_crtcs = encoder->crtc_mask; |
12781 | encoder->base.possible_clones = | |
66a9278e | 12782 | intel_encoder_clones(encoder); |
79e53945 | 12783 | } |
47356eb6 | 12784 | |
dde86e2d | 12785 | intel_init_pch_refclk(dev); |
270b3042 DV |
12786 | |
12787 | drm_helper_move_panel_connectors_to_head(dev); | |
79e53945 JB |
12788 | } |
12789 | ||
12790 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
12791 | { | |
60a5ca01 | 12792 | struct drm_device *dev = fb->dev; |
79e53945 | 12793 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
79e53945 | 12794 | |
ef2d633e | 12795 | drm_framebuffer_cleanup(fb); |
60a5ca01 | 12796 | mutex_lock(&dev->struct_mutex); |
ef2d633e | 12797 | WARN_ON(!intel_fb->obj->framebuffer_references--); |
60a5ca01 VS |
12798 | drm_gem_object_unreference(&intel_fb->obj->base); |
12799 | mutex_unlock(&dev->struct_mutex); | |
79e53945 JB |
12800 | kfree(intel_fb); |
12801 | } | |
12802 | ||
12803 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 12804 | struct drm_file *file, |
79e53945 JB |
12805 | unsigned int *handle) |
12806 | { | |
12807 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 12808 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 12809 | |
05394f39 | 12810 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
12811 | } |
12812 | ||
12813 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
12814 | .destroy = intel_user_framebuffer_destroy, | |
12815 | .create_handle = intel_user_framebuffer_create_handle, | |
12816 | }; | |
12817 | ||
b321803d DL |
12818 | static |
12819 | u32 intel_fb_pitch_limit(struct drm_device *dev, uint64_t fb_modifier, | |
12820 | uint32_t pixel_format) | |
12821 | { | |
12822 | u32 gen = INTEL_INFO(dev)->gen; | |
12823 | ||
12824 | if (gen >= 9) { | |
12825 | /* "The stride in bytes must not exceed the of the size of 8K | |
12826 | * pixels and 32K bytes." | |
12827 | */ | |
12828 | return min(8192*drm_format_plane_cpp(pixel_format, 0), 32768); | |
12829 | } else if (gen >= 5 && !IS_VALLEYVIEW(dev)) { | |
12830 | return 32*1024; | |
12831 | } else if (gen >= 4) { | |
12832 | if (fb_modifier == I915_FORMAT_MOD_X_TILED) | |
12833 | return 16*1024; | |
12834 | else | |
12835 | return 32*1024; | |
12836 | } else if (gen >= 3) { | |
12837 | if (fb_modifier == I915_FORMAT_MOD_X_TILED) | |
12838 | return 8*1024; | |
12839 | else | |
12840 | return 16*1024; | |
12841 | } else { | |
12842 | /* XXX DSPC is limited to 4k tiled */ | |
12843 | return 8*1024; | |
12844 | } | |
12845 | } | |
12846 | ||
b5ea642a DV |
12847 | static int intel_framebuffer_init(struct drm_device *dev, |
12848 | struct intel_framebuffer *intel_fb, | |
12849 | struct drm_mode_fb_cmd2 *mode_cmd, | |
12850 | struct drm_i915_gem_object *obj) | |
79e53945 | 12851 | { |
a57ce0b2 | 12852 | int aligned_height; |
79e53945 | 12853 | int ret; |
b321803d | 12854 | u32 pitch_limit, stride_alignment; |
79e53945 | 12855 | |
dd4916c5 DV |
12856 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
12857 | ||
2a80eada DV |
12858 | if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) { |
12859 | /* Enforce that fb modifier and tiling mode match, but only for | |
12860 | * X-tiled. This is needed for FBC. */ | |
12861 | if (!!(obj->tiling_mode == I915_TILING_X) != | |
12862 | !!(mode_cmd->modifier[0] == I915_FORMAT_MOD_X_TILED)) { | |
12863 | DRM_DEBUG("tiling_mode doesn't match fb modifier\n"); | |
12864 | return -EINVAL; | |
12865 | } | |
12866 | } else { | |
12867 | if (obj->tiling_mode == I915_TILING_X) | |
12868 | mode_cmd->modifier[0] = I915_FORMAT_MOD_X_TILED; | |
12869 | else if (obj->tiling_mode == I915_TILING_Y) { | |
12870 | DRM_DEBUG("No Y tiling for legacy addfb\n"); | |
12871 | return -EINVAL; | |
12872 | } | |
12873 | } | |
12874 | ||
9a8f0a12 TU |
12875 | /* Passed in modifier sanity checking. */ |
12876 | switch (mode_cmd->modifier[0]) { | |
12877 | case I915_FORMAT_MOD_Y_TILED: | |
12878 | case I915_FORMAT_MOD_Yf_TILED: | |
12879 | if (INTEL_INFO(dev)->gen < 9) { | |
12880 | DRM_DEBUG("Unsupported tiling 0x%llx!\n", | |
12881 | mode_cmd->modifier[0]); | |
12882 | return -EINVAL; | |
12883 | } | |
12884 | case DRM_FORMAT_MOD_NONE: | |
12885 | case I915_FORMAT_MOD_X_TILED: | |
12886 | break; | |
12887 | default: | |
12888 | DRM_ERROR("Unsupported fb modifier 0x%llx!\n", | |
12889 | mode_cmd->modifier[0]); | |
57cd6508 | 12890 | return -EINVAL; |
c16ed4be | 12891 | } |
57cd6508 | 12892 | |
b321803d DL |
12893 | stride_alignment = intel_fb_stride_alignment(dev, mode_cmd->modifier[0], |
12894 | mode_cmd->pixel_format); | |
12895 | if (mode_cmd->pitches[0] & (stride_alignment - 1)) { | |
12896 | DRM_DEBUG("pitch (%d) must be at least %u byte aligned\n", | |
12897 | mode_cmd->pitches[0], stride_alignment); | |
57cd6508 | 12898 | return -EINVAL; |
c16ed4be | 12899 | } |
57cd6508 | 12900 | |
b321803d DL |
12901 | pitch_limit = intel_fb_pitch_limit(dev, mode_cmd->modifier[0], |
12902 | mode_cmd->pixel_format); | |
a35cdaa0 | 12903 | if (mode_cmd->pitches[0] > pitch_limit) { |
b321803d DL |
12904 | DRM_DEBUG("%s pitch (%u) must be at less than %d\n", |
12905 | mode_cmd->modifier[0] != DRM_FORMAT_MOD_NONE ? | |
2a80eada | 12906 | "tiled" : "linear", |
a35cdaa0 | 12907 | mode_cmd->pitches[0], pitch_limit); |
5d7bd705 | 12908 | return -EINVAL; |
c16ed4be | 12909 | } |
5d7bd705 | 12910 | |
2a80eada | 12911 | if (mode_cmd->modifier[0] == I915_FORMAT_MOD_X_TILED && |
c16ed4be CW |
12912 | mode_cmd->pitches[0] != obj->stride) { |
12913 | DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n", | |
12914 | mode_cmd->pitches[0], obj->stride); | |
5d7bd705 | 12915 | return -EINVAL; |
c16ed4be | 12916 | } |
5d7bd705 | 12917 | |
57779d06 | 12918 | /* Reject formats not supported by any plane early. */ |
308e5bcb | 12919 | switch (mode_cmd->pixel_format) { |
57779d06 | 12920 | case DRM_FORMAT_C8: |
04b3924d VS |
12921 | case DRM_FORMAT_RGB565: |
12922 | case DRM_FORMAT_XRGB8888: | |
12923 | case DRM_FORMAT_ARGB8888: | |
57779d06 VS |
12924 | break; |
12925 | case DRM_FORMAT_XRGB1555: | |
12926 | case DRM_FORMAT_ARGB1555: | |
c16ed4be | 12927 | if (INTEL_INFO(dev)->gen > 3) { |
4ee62c76 VS |
12928 | DRM_DEBUG("unsupported pixel format: %s\n", |
12929 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 12930 | return -EINVAL; |
c16ed4be | 12931 | } |
57779d06 VS |
12932 | break; |
12933 | case DRM_FORMAT_XBGR8888: | |
12934 | case DRM_FORMAT_ABGR8888: | |
04b3924d VS |
12935 | case DRM_FORMAT_XRGB2101010: |
12936 | case DRM_FORMAT_ARGB2101010: | |
57779d06 VS |
12937 | case DRM_FORMAT_XBGR2101010: |
12938 | case DRM_FORMAT_ABGR2101010: | |
c16ed4be | 12939 | if (INTEL_INFO(dev)->gen < 4) { |
4ee62c76 VS |
12940 | DRM_DEBUG("unsupported pixel format: %s\n", |
12941 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 12942 | return -EINVAL; |
c16ed4be | 12943 | } |
b5626747 | 12944 | break; |
04b3924d VS |
12945 | case DRM_FORMAT_YUYV: |
12946 | case DRM_FORMAT_UYVY: | |
12947 | case DRM_FORMAT_YVYU: | |
12948 | case DRM_FORMAT_VYUY: | |
c16ed4be | 12949 | if (INTEL_INFO(dev)->gen < 5) { |
4ee62c76 VS |
12950 | DRM_DEBUG("unsupported pixel format: %s\n", |
12951 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 12952 | return -EINVAL; |
c16ed4be | 12953 | } |
57cd6508 CW |
12954 | break; |
12955 | default: | |
4ee62c76 VS |
12956 | DRM_DEBUG("unsupported pixel format: %s\n", |
12957 | drm_get_format_name(mode_cmd->pixel_format)); | |
57cd6508 CW |
12958 | return -EINVAL; |
12959 | } | |
12960 | ||
90f9a336 VS |
12961 | /* FIXME need to adjust LINOFF/TILEOFF accordingly. */ |
12962 | if (mode_cmd->offsets[0] != 0) | |
12963 | return -EINVAL; | |
12964 | ||
ec2c981e | 12965 | aligned_height = intel_fb_align_height(dev, mode_cmd->height, |
091df6cb DV |
12966 | mode_cmd->pixel_format, |
12967 | mode_cmd->modifier[0]); | |
53155c0a DV |
12968 | /* FIXME drm helper for size checks (especially planar formats)? */ |
12969 | if (obj->base.size < aligned_height * mode_cmd->pitches[0]) | |
12970 | return -EINVAL; | |
12971 | ||
c7d73f6a DV |
12972 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); |
12973 | intel_fb->obj = obj; | |
80075d49 | 12974 | intel_fb->obj->framebuffer_references++; |
c7d73f6a | 12975 | |
79e53945 JB |
12976 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
12977 | if (ret) { | |
12978 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
12979 | return ret; | |
12980 | } | |
12981 | ||
79e53945 JB |
12982 | return 0; |
12983 | } | |
12984 | ||
79e53945 JB |
12985 | static struct drm_framebuffer * |
12986 | intel_user_framebuffer_create(struct drm_device *dev, | |
12987 | struct drm_file *filp, | |
308e5bcb | 12988 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 12989 | { |
05394f39 | 12990 | struct drm_i915_gem_object *obj; |
79e53945 | 12991 | |
308e5bcb JB |
12992 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
12993 | mode_cmd->handles[0])); | |
c8725226 | 12994 | if (&obj->base == NULL) |
cce13ff7 | 12995 | return ERR_PTR(-ENOENT); |
79e53945 | 12996 | |
d2dff872 | 12997 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
12998 | } |
12999 | ||
4520f53a | 13000 | #ifndef CONFIG_DRM_I915_FBDEV |
0632fef6 | 13001 | static inline void intel_fbdev_output_poll_changed(struct drm_device *dev) |
4520f53a DV |
13002 | { |
13003 | } | |
13004 | #endif | |
13005 | ||
79e53945 | 13006 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 13007 | .fb_create = intel_user_framebuffer_create, |
0632fef6 | 13008 | .output_poll_changed = intel_fbdev_output_poll_changed, |
5ee67f1c MR |
13009 | .atomic_check = intel_atomic_check, |
13010 | .atomic_commit = intel_atomic_commit, | |
79e53945 JB |
13011 | }; |
13012 | ||
e70236a8 JB |
13013 | /* Set up chip specific display functions */ |
13014 | static void intel_init_display(struct drm_device *dev) | |
13015 | { | |
13016 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13017 | ||
ee9300bb DV |
13018 | if (HAS_PCH_SPLIT(dev) || IS_G4X(dev)) |
13019 | dev_priv->display.find_dpll = g4x_find_best_dpll; | |
ef9348c8 CML |
13020 | else if (IS_CHERRYVIEW(dev)) |
13021 | dev_priv->display.find_dpll = chv_find_best_dpll; | |
ee9300bb DV |
13022 | else if (IS_VALLEYVIEW(dev)) |
13023 | dev_priv->display.find_dpll = vlv_find_best_dpll; | |
13024 | else if (IS_PINEVIEW(dev)) | |
13025 | dev_priv->display.find_dpll = pnv_find_best_dpll; | |
13026 | else | |
13027 | dev_priv->display.find_dpll = i9xx_find_best_dpll; | |
13028 | ||
bc8d7dff DL |
13029 | if (INTEL_INFO(dev)->gen >= 9) { |
13030 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; | |
5724dbd1 DL |
13031 | dev_priv->display.get_initial_plane_config = |
13032 | skylake_get_initial_plane_config; | |
bc8d7dff DL |
13033 | dev_priv->display.crtc_compute_clock = |
13034 | haswell_crtc_compute_clock; | |
13035 | dev_priv->display.crtc_enable = haswell_crtc_enable; | |
13036 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
13037 | dev_priv->display.off = ironlake_crtc_off; | |
13038 | dev_priv->display.update_primary_plane = | |
13039 | skylake_update_primary_plane; | |
13040 | } else if (HAS_DDI(dev)) { | |
0e8ffe1b | 13041 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; |
5724dbd1 DL |
13042 | dev_priv->display.get_initial_plane_config = |
13043 | ironlake_get_initial_plane_config; | |
797d0259 ACO |
13044 | dev_priv->display.crtc_compute_clock = |
13045 | haswell_crtc_compute_clock; | |
4f771f10 PZ |
13046 | dev_priv->display.crtc_enable = haswell_crtc_enable; |
13047 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
df8ad70c | 13048 | dev_priv->display.off = ironlake_crtc_off; |
bc8d7dff DL |
13049 | dev_priv->display.update_primary_plane = |
13050 | ironlake_update_primary_plane; | |
09b4ddf9 | 13051 | } else if (HAS_PCH_SPLIT(dev)) { |
0e8ffe1b | 13052 | dev_priv->display.get_pipe_config = ironlake_get_pipe_config; |
5724dbd1 DL |
13053 | dev_priv->display.get_initial_plane_config = |
13054 | ironlake_get_initial_plane_config; | |
3fb37703 ACO |
13055 | dev_priv->display.crtc_compute_clock = |
13056 | ironlake_crtc_compute_clock; | |
76e5a89c DV |
13057 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
13058 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
ee7b9f93 | 13059 | dev_priv->display.off = ironlake_crtc_off; |
262ca2b0 MR |
13060 | dev_priv->display.update_primary_plane = |
13061 | ironlake_update_primary_plane; | |
89b667f8 JB |
13062 | } else if (IS_VALLEYVIEW(dev)) { |
13063 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; | |
5724dbd1 DL |
13064 | dev_priv->display.get_initial_plane_config = |
13065 | i9xx_get_initial_plane_config; | |
d6dfee7a | 13066 | dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock; |
89b667f8 JB |
13067 | dev_priv->display.crtc_enable = valleyview_crtc_enable; |
13068 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
13069 | dev_priv->display.off = i9xx_crtc_off; | |
262ca2b0 MR |
13070 | dev_priv->display.update_primary_plane = |
13071 | i9xx_update_primary_plane; | |
f564048e | 13072 | } else { |
0e8ffe1b | 13073 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; |
5724dbd1 DL |
13074 | dev_priv->display.get_initial_plane_config = |
13075 | i9xx_get_initial_plane_config; | |
d6dfee7a | 13076 | dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock; |
76e5a89c DV |
13077 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
13078 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
ee7b9f93 | 13079 | dev_priv->display.off = i9xx_crtc_off; |
262ca2b0 MR |
13080 | dev_priv->display.update_primary_plane = |
13081 | i9xx_update_primary_plane; | |
f564048e | 13082 | } |
e70236a8 | 13083 | |
e70236a8 | 13084 | /* Returns the core display clock speed */ |
25eb05fc JB |
13085 | if (IS_VALLEYVIEW(dev)) |
13086 | dev_priv->display.get_display_clock_speed = | |
13087 | valleyview_get_display_clock_speed; | |
13088 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) | |
e70236a8 JB |
13089 | dev_priv->display.get_display_clock_speed = |
13090 | i945_get_display_clock_speed; | |
13091 | else if (IS_I915G(dev)) | |
13092 | dev_priv->display.get_display_clock_speed = | |
13093 | i915_get_display_clock_speed; | |
257a7ffc | 13094 | else if (IS_I945GM(dev) || IS_845G(dev)) |
e70236a8 JB |
13095 | dev_priv->display.get_display_clock_speed = |
13096 | i9xx_misc_get_display_clock_speed; | |
257a7ffc DV |
13097 | else if (IS_PINEVIEW(dev)) |
13098 | dev_priv->display.get_display_clock_speed = | |
13099 | pnv_get_display_clock_speed; | |
e70236a8 JB |
13100 | else if (IS_I915GM(dev)) |
13101 | dev_priv->display.get_display_clock_speed = | |
13102 | i915gm_get_display_clock_speed; | |
13103 | else if (IS_I865G(dev)) | |
13104 | dev_priv->display.get_display_clock_speed = | |
13105 | i865_get_display_clock_speed; | |
f0f8a9ce | 13106 | else if (IS_I85X(dev)) |
e70236a8 JB |
13107 | dev_priv->display.get_display_clock_speed = |
13108 | i855_get_display_clock_speed; | |
13109 | else /* 852, 830 */ | |
13110 | dev_priv->display.get_display_clock_speed = | |
13111 | i830_get_display_clock_speed; | |
13112 | ||
7c10a2b5 | 13113 | if (IS_GEN5(dev)) { |
3bb11b53 | 13114 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
3bb11b53 SJ |
13115 | } else if (IS_GEN6(dev)) { |
13116 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; | |
3bb11b53 SJ |
13117 | } else if (IS_IVYBRIDGE(dev)) { |
13118 | /* FIXME: detect B0+ stepping and use auto training */ | |
13119 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
059b2fe9 | 13120 | } else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
3bb11b53 | 13121 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; |
30a970c6 JB |
13122 | } else if (IS_VALLEYVIEW(dev)) { |
13123 | dev_priv->display.modeset_global_resources = | |
13124 | valleyview_modeset_global_resources; | |
e70236a8 | 13125 | } |
8c9f3aaf | 13126 | |
8c9f3aaf JB |
13127 | switch (INTEL_INFO(dev)->gen) { |
13128 | case 2: | |
13129 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
13130 | break; | |
13131 | ||
13132 | case 3: | |
13133 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
13134 | break; | |
13135 | ||
13136 | case 4: | |
13137 | case 5: | |
13138 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
13139 | break; | |
13140 | ||
13141 | case 6: | |
13142 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
13143 | break; | |
7c9017e5 | 13144 | case 7: |
4e0bbc31 | 13145 | case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */ |
7c9017e5 JB |
13146 | dev_priv->display.queue_flip = intel_gen7_queue_flip; |
13147 | break; | |
830c81db | 13148 | case 9: |
ba343e02 TU |
13149 | /* Drop through - unsupported since execlist only. */ |
13150 | default: | |
13151 | /* Default just returns -ENODEV to indicate unsupported */ | |
13152 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
8c9f3aaf | 13153 | } |
7bd688cd JN |
13154 | |
13155 | intel_panel_init_backlight_funcs(dev); | |
e39b999a VS |
13156 | |
13157 | mutex_init(&dev_priv->pps_mutex); | |
e70236a8 JB |
13158 | } |
13159 | ||
b690e96c JB |
13160 | /* |
13161 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
13162 | * resume, or other times. This quirk makes sure that's the case for | |
13163 | * affected systems. | |
13164 | */ | |
0206e353 | 13165 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
13166 | { |
13167 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13168 | ||
13169 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 13170 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
13171 | } |
13172 | ||
b6b5d049 VS |
13173 | static void quirk_pipeb_force(struct drm_device *dev) |
13174 | { | |
13175 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13176 | ||
13177 | dev_priv->quirks |= QUIRK_PIPEB_FORCE; | |
13178 | DRM_INFO("applying pipe b force quirk\n"); | |
13179 | } | |
13180 | ||
435793df KP |
13181 | /* |
13182 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
13183 | */ | |
13184 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
13185 | { | |
13186 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13187 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 13188 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
13189 | } |
13190 | ||
4dca20ef | 13191 | /* |
5a15ab5b CE |
13192 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
13193 | * brightness value | |
4dca20ef CE |
13194 | */ |
13195 | static void quirk_invert_brightness(struct drm_device *dev) | |
13196 | { | |
13197 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13198 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 13199 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
13200 | } |
13201 | ||
9c72cc6f SD |
13202 | /* Some VBT's incorrectly indicate no backlight is present */ |
13203 | static void quirk_backlight_present(struct drm_device *dev) | |
13204 | { | |
13205 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13206 | dev_priv->quirks |= QUIRK_BACKLIGHT_PRESENT; | |
13207 | DRM_INFO("applying backlight present quirk\n"); | |
13208 | } | |
13209 | ||
b690e96c JB |
13210 | struct intel_quirk { |
13211 | int device; | |
13212 | int subsystem_vendor; | |
13213 | int subsystem_device; | |
13214 | void (*hook)(struct drm_device *dev); | |
13215 | }; | |
13216 | ||
5f85f176 EE |
13217 | /* For systems that don't have a meaningful PCI subdevice/subvendor ID */ |
13218 | struct intel_dmi_quirk { | |
13219 | void (*hook)(struct drm_device *dev); | |
13220 | const struct dmi_system_id (*dmi_id_list)[]; | |
13221 | }; | |
13222 | ||
13223 | static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) | |
13224 | { | |
13225 | DRM_INFO("Backlight polarity reversed on %s\n", id->ident); | |
13226 | return 1; | |
13227 | } | |
13228 | ||
13229 | static const struct intel_dmi_quirk intel_dmi_quirks[] = { | |
13230 | { | |
13231 | .dmi_id_list = &(const struct dmi_system_id[]) { | |
13232 | { | |
13233 | .callback = intel_dmi_reverse_brightness, | |
13234 | .ident = "NCR Corporation", | |
13235 | .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), | |
13236 | DMI_MATCH(DMI_PRODUCT_NAME, ""), | |
13237 | }, | |
13238 | }, | |
13239 | { } /* terminating entry */ | |
13240 | }, | |
13241 | .hook = quirk_invert_brightness, | |
13242 | }, | |
13243 | }; | |
13244 | ||
c43b5634 | 13245 | static struct intel_quirk intel_quirks[] = { |
b690e96c | 13246 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
0206e353 | 13247 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
b690e96c | 13248 | |
b690e96c JB |
13249 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
13250 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
13251 | ||
b690e96c JB |
13252 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
13253 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
13254 | ||
5f080c0f VS |
13255 | /* 830 needs to leave pipe A & dpll A up */ |
13256 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
13257 | ||
b6b5d049 VS |
13258 | /* 830 needs to leave pipe B & dpll B up */ |
13259 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipeb_force }, | |
13260 | ||
435793df KP |
13261 | /* Lenovo U160 cannot use SSC on LVDS */ |
13262 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
13263 | |
13264 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
13265 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b | 13266 | |
be505f64 AH |
13267 | /* Acer Aspire 5734Z must invert backlight brightness */ |
13268 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
13269 | ||
13270 | /* Acer/eMachines G725 */ | |
13271 | { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness }, | |
13272 | ||
13273 | /* Acer/eMachines e725 */ | |
13274 | { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness }, | |
13275 | ||
13276 | /* Acer/Packard Bell NCL20 */ | |
13277 | { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness }, | |
13278 | ||
13279 | /* Acer Aspire 4736Z */ | |
13280 | { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness }, | |
0f540c3a JN |
13281 | |
13282 | /* Acer Aspire 5336 */ | |
13283 | { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness }, | |
2e93a1aa SD |
13284 | |
13285 | /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */ | |
13286 | { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present }, | |
d4967d8c | 13287 | |
dfb3d47b SD |
13288 | /* Acer C720 Chromebook (Core i3 4005U) */ |
13289 | { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present }, | |
13290 | ||
b2a9601c | 13291 | /* Apple Macbook 2,1 (Core 2 T7400) */ |
13292 | { 0x27a2, 0x8086, 0x7270, quirk_backlight_present }, | |
13293 | ||
d4967d8c SD |
13294 | /* Toshiba CB35 Chromebook (Celeron 2955U) */ |
13295 | { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present }, | |
724cb06f SD |
13296 | |
13297 | /* HP Chromebook 14 (Celeron 2955U) */ | |
13298 | { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present }, | |
cf6f0af9 JN |
13299 | |
13300 | /* Dell Chromebook 11 */ | |
13301 | { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present }, | |
b690e96c JB |
13302 | }; |
13303 | ||
13304 | static void intel_init_quirks(struct drm_device *dev) | |
13305 | { | |
13306 | struct pci_dev *d = dev->pdev; | |
13307 | int i; | |
13308 | ||
13309 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
13310 | struct intel_quirk *q = &intel_quirks[i]; | |
13311 | ||
13312 | if (d->device == q->device && | |
13313 | (d->subsystem_vendor == q->subsystem_vendor || | |
13314 | q->subsystem_vendor == PCI_ANY_ID) && | |
13315 | (d->subsystem_device == q->subsystem_device || | |
13316 | q->subsystem_device == PCI_ANY_ID)) | |
13317 | q->hook(dev); | |
13318 | } | |
5f85f176 EE |
13319 | for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { |
13320 | if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) | |
13321 | intel_dmi_quirks[i].hook(dev); | |
13322 | } | |
b690e96c JB |
13323 | } |
13324 | ||
9cce37f4 JB |
13325 | /* Disable the VGA plane that we never use */ |
13326 | static void i915_disable_vga(struct drm_device *dev) | |
13327 | { | |
13328 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13329 | u8 sr1; | |
766aa1c4 | 13330 | u32 vga_reg = i915_vgacntrl_reg(dev); |
9cce37f4 | 13331 | |
2b37c616 | 13332 | /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */ |
9cce37f4 | 13333 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); |
3fdcf431 | 13334 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
13335 | sr1 = inb(VGA_SR_DATA); |
13336 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
13337 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
13338 | udelay(300); | |
13339 | ||
01f5a626 | 13340 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); |
9cce37f4 JB |
13341 | POSTING_READ(vga_reg); |
13342 | } | |
13343 | ||
f817586c DV |
13344 | void intel_modeset_init_hw(struct drm_device *dev) |
13345 | { | |
a8f78b58 ED |
13346 | intel_prepare_ddi(dev); |
13347 | ||
f8bf63fd VS |
13348 | if (IS_VALLEYVIEW(dev)) |
13349 | vlv_update_cdclk(dev); | |
13350 | ||
f817586c DV |
13351 | intel_init_clock_gating(dev); |
13352 | ||
8090c6b9 | 13353 | intel_enable_gt_powersave(dev); |
f817586c DV |
13354 | } |
13355 | ||
79e53945 JB |
13356 | void intel_modeset_init(struct drm_device *dev) |
13357 | { | |
652c393a | 13358 | struct drm_i915_private *dev_priv = dev->dev_private; |
1fe47785 | 13359 | int sprite, ret; |
8cc87b75 | 13360 | enum pipe pipe; |
46f297fb | 13361 | struct intel_crtc *crtc; |
79e53945 JB |
13362 | |
13363 | drm_mode_config_init(dev); | |
13364 | ||
13365 | dev->mode_config.min_width = 0; | |
13366 | dev->mode_config.min_height = 0; | |
13367 | ||
019d96cb DA |
13368 | dev->mode_config.preferred_depth = 24; |
13369 | dev->mode_config.prefer_shadow = 1; | |
13370 | ||
25bab385 TU |
13371 | dev->mode_config.allow_fb_modifiers = true; |
13372 | ||
e6ecefaa | 13373 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 13374 | |
b690e96c JB |
13375 | intel_init_quirks(dev); |
13376 | ||
1fa61106 ED |
13377 | intel_init_pm(dev); |
13378 | ||
e3c74757 BW |
13379 | if (INTEL_INFO(dev)->num_pipes == 0) |
13380 | return; | |
13381 | ||
e70236a8 | 13382 | intel_init_display(dev); |
7c10a2b5 | 13383 | intel_init_audio(dev); |
e70236a8 | 13384 | |
a6c45cf0 CW |
13385 | if (IS_GEN2(dev)) { |
13386 | dev->mode_config.max_width = 2048; | |
13387 | dev->mode_config.max_height = 2048; | |
13388 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
13389 | dev->mode_config.max_width = 4096; |
13390 | dev->mode_config.max_height = 4096; | |
79e53945 | 13391 | } else { |
a6c45cf0 CW |
13392 | dev->mode_config.max_width = 8192; |
13393 | dev->mode_config.max_height = 8192; | |
79e53945 | 13394 | } |
068be561 | 13395 | |
dc41c154 VS |
13396 | if (IS_845G(dev) || IS_I865G(dev)) { |
13397 | dev->mode_config.cursor_width = IS_845G(dev) ? 64 : 512; | |
13398 | dev->mode_config.cursor_height = 1023; | |
13399 | } else if (IS_GEN2(dev)) { | |
068be561 DL |
13400 | dev->mode_config.cursor_width = GEN2_CURSOR_WIDTH; |
13401 | dev->mode_config.cursor_height = GEN2_CURSOR_HEIGHT; | |
13402 | } else { | |
13403 | dev->mode_config.cursor_width = MAX_CURSOR_WIDTH; | |
13404 | dev->mode_config.cursor_height = MAX_CURSOR_HEIGHT; | |
13405 | } | |
13406 | ||
5d4545ae | 13407 | dev->mode_config.fb_base = dev_priv->gtt.mappable_base; |
79e53945 | 13408 | |
28c97730 | 13409 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
7eb552ae BW |
13410 | INTEL_INFO(dev)->num_pipes, |
13411 | INTEL_INFO(dev)->num_pipes > 1 ? "s" : ""); | |
79e53945 | 13412 | |
055e393f | 13413 | for_each_pipe(dev_priv, pipe) { |
8cc87b75 | 13414 | intel_crtc_init(dev, pipe); |
3bdcfc0c | 13415 | for_each_sprite(dev_priv, pipe, sprite) { |
1fe47785 | 13416 | ret = intel_plane_init(dev, pipe, sprite); |
7f1f3851 | 13417 | if (ret) |
06da8da2 | 13418 | DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n", |
1fe47785 | 13419 | pipe_name(pipe), sprite_name(pipe, sprite), ret); |
7f1f3851 | 13420 | } |
79e53945 JB |
13421 | } |
13422 | ||
f42bb70d JB |
13423 | intel_init_dpio(dev); |
13424 | ||
e72f9fbf | 13425 | intel_shared_dpll_init(dev); |
ee7b9f93 | 13426 | |
9cce37f4 JB |
13427 | /* Just disable it once at startup */ |
13428 | i915_disable_vga(dev); | |
79e53945 | 13429 | intel_setup_outputs(dev); |
11be49eb CW |
13430 | |
13431 | /* Just in case the BIOS is doing something questionable. */ | |
7ff0ebcc | 13432 | intel_fbc_disable(dev); |
fa9fa083 | 13433 | |
6e9f798d | 13434 | drm_modeset_lock_all(dev); |
fa9fa083 | 13435 | intel_modeset_setup_hw_state(dev, false); |
6e9f798d | 13436 | drm_modeset_unlock_all(dev); |
46f297fb | 13437 | |
d3fcc808 | 13438 | for_each_intel_crtc(dev, crtc) { |
46f297fb JB |
13439 | if (!crtc->active) |
13440 | continue; | |
13441 | ||
46f297fb | 13442 | /* |
46f297fb JB |
13443 | * Note that reserving the BIOS fb up front prevents us |
13444 | * from stuffing other stolen allocations like the ring | |
13445 | * on top. This prevents some ugliness at boot time, and | |
13446 | * can even allow for smooth boot transitions if the BIOS | |
13447 | * fb is large enough for the active pipe configuration. | |
13448 | */ | |
5724dbd1 DL |
13449 | if (dev_priv->display.get_initial_plane_config) { |
13450 | dev_priv->display.get_initial_plane_config(crtc, | |
46f297fb JB |
13451 | &crtc->plane_config); |
13452 | /* | |
13453 | * If the fb is shared between multiple heads, we'll | |
13454 | * just get the first one. | |
13455 | */ | |
484b41dd | 13456 | intel_find_plane_obj(crtc, &crtc->plane_config); |
46f297fb | 13457 | } |
46f297fb | 13458 | } |
2c7111db CW |
13459 | } |
13460 | ||
7fad798e DV |
13461 | static void intel_enable_pipe_a(struct drm_device *dev) |
13462 | { | |
13463 | struct intel_connector *connector; | |
13464 | struct drm_connector *crt = NULL; | |
13465 | struct intel_load_detect_pipe load_detect_temp; | |
208bf9fd | 13466 | struct drm_modeset_acquire_ctx *ctx = dev->mode_config.acquire_ctx; |
7fad798e DV |
13467 | |
13468 | /* We can't just switch on the pipe A, we need to set things up with a | |
13469 | * proper mode and output configuration. As a gross hack, enable pipe A | |
13470 | * by enabling the load detect pipe once. */ | |
3a3371ff | 13471 | for_each_intel_connector(dev, connector) { |
7fad798e DV |
13472 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { |
13473 | crt = &connector->base; | |
13474 | break; | |
13475 | } | |
13476 | } | |
13477 | ||
13478 | if (!crt) | |
13479 | return; | |
13480 | ||
208bf9fd VS |
13481 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp, ctx)) |
13482 | intel_release_load_detect_pipe(crt, &load_detect_temp); | |
7fad798e DV |
13483 | } |
13484 | ||
fa555837 DV |
13485 | static bool |
13486 | intel_check_plane_mapping(struct intel_crtc *crtc) | |
13487 | { | |
7eb552ae BW |
13488 | struct drm_device *dev = crtc->base.dev; |
13489 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 DV |
13490 | u32 reg, val; |
13491 | ||
7eb552ae | 13492 | if (INTEL_INFO(dev)->num_pipes == 1) |
fa555837 DV |
13493 | return true; |
13494 | ||
13495 | reg = DSPCNTR(!crtc->plane); | |
13496 | val = I915_READ(reg); | |
13497 | ||
13498 | if ((val & DISPLAY_PLANE_ENABLE) && | |
13499 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
13500 | return false; | |
13501 | ||
13502 | return true; | |
13503 | } | |
13504 | ||
24929352 DV |
13505 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
13506 | { | |
13507 | struct drm_device *dev = crtc->base.dev; | |
13508 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 | 13509 | u32 reg; |
24929352 | 13510 | |
24929352 | 13511 | /* Clear any frame start delays used for debugging left by the BIOS */ |
6e3c9717 | 13512 | reg = PIPECONF(crtc->config->cpu_transcoder); |
24929352 DV |
13513 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); |
13514 | ||
d3eaf884 | 13515 | /* restore vblank interrupts to correct state */ |
9625604c | 13516 | drm_crtc_vblank_reset(&crtc->base); |
d297e103 VS |
13517 | if (crtc->active) { |
13518 | update_scanline_offset(crtc); | |
9625604c DV |
13519 | drm_crtc_vblank_on(&crtc->base); |
13520 | } | |
d3eaf884 | 13521 | |
24929352 | 13522 | /* We need to sanitize the plane -> pipe mapping first because this will |
fa555837 DV |
13523 | * disable the crtc (and hence change the state) if it is wrong. Note |
13524 | * that gen4+ has a fixed plane -> pipe mapping. */ | |
13525 | if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) { | |
24929352 DV |
13526 | struct intel_connector *connector; |
13527 | bool plane; | |
13528 | ||
24929352 DV |
13529 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", |
13530 | crtc->base.base.id); | |
13531 | ||
13532 | /* Pipe has the wrong plane attached and the plane is active. | |
13533 | * Temporarily change the plane mapping and disable everything | |
13534 | * ... */ | |
13535 | plane = crtc->plane; | |
13536 | crtc->plane = !plane; | |
9c8958bc | 13537 | crtc->primary_enabled = true; |
24929352 DV |
13538 | dev_priv->display.crtc_disable(&crtc->base); |
13539 | crtc->plane = plane; | |
13540 | ||
13541 | /* ... and break all links. */ | |
3a3371ff | 13542 | for_each_intel_connector(dev, connector) { |
24929352 DV |
13543 | if (connector->encoder->base.crtc != &crtc->base) |
13544 | continue; | |
13545 | ||
7f1950fb EE |
13546 | connector->base.dpms = DRM_MODE_DPMS_OFF; |
13547 | connector->base.encoder = NULL; | |
24929352 | 13548 | } |
7f1950fb EE |
13549 | /* multiple connectors may have the same encoder: |
13550 | * handle them and break crtc link separately */ | |
3a3371ff | 13551 | for_each_intel_connector(dev, connector) |
7f1950fb EE |
13552 | if (connector->encoder->base.crtc == &crtc->base) { |
13553 | connector->encoder->base.crtc = NULL; | |
13554 | connector->encoder->connectors_active = false; | |
13555 | } | |
24929352 DV |
13556 | |
13557 | WARN_ON(crtc->active); | |
83d65738 | 13558 | crtc->base.state->enable = false; |
24929352 DV |
13559 | crtc->base.enabled = false; |
13560 | } | |
24929352 | 13561 | |
7fad798e DV |
13562 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
13563 | crtc->pipe == PIPE_A && !crtc->active) { | |
13564 | /* BIOS forgot to enable pipe A, this mostly happens after | |
13565 | * resume. Force-enable the pipe to fix this, the update_dpms | |
13566 | * call below we restore the pipe to the right state, but leave | |
13567 | * the required bits on. */ | |
13568 | intel_enable_pipe_a(dev); | |
13569 | } | |
13570 | ||
24929352 DV |
13571 | /* Adjust the state of the output pipe according to whether we |
13572 | * have active connectors/encoders. */ | |
13573 | intel_crtc_update_dpms(&crtc->base); | |
13574 | ||
83d65738 | 13575 | if (crtc->active != crtc->base.state->enable) { |
24929352 DV |
13576 | struct intel_encoder *encoder; |
13577 | ||
13578 | /* This can happen either due to bugs in the get_hw_state | |
13579 | * functions or because the pipe is force-enabled due to the | |
13580 | * pipe A quirk. */ | |
13581 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", | |
13582 | crtc->base.base.id, | |
83d65738 | 13583 | crtc->base.state->enable ? "enabled" : "disabled", |
24929352 DV |
13584 | crtc->active ? "enabled" : "disabled"); |
13585 | ||
83d65738 | 13586 | crtc->base.state->enable = crtc->active; |
24929352 DV |
13587 | crtc->base.enabled = crtc->active; |
13588 | ||
13589 | /* Because we only establish the connector -> encoder -> | |
13590 | * crtc links if something is active, this means the | |
13591 | * crtc is now deactivated. Break the links. connector | |
13592 | * -> encoder links are only establish when things are | |
13593 | * actually up, hence no need to break them. */ | |
13594 | WARN_ON(crtc->active); | |
13595 | ||
13596 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { | |
13597 | WARN_ON(encoder->connectors_active); | |
13598 | encoder->base.crtc = NULL; | |
13599 | } | |
13600 | } | |
c5ab3bc0 | 13601 | |
a3ed6aad | 13602 | if (crtc->active || HAS_GMCH_DISPLAY(dev)) { |
4cc31489 DV |
13603 | /* |
13604 | * We start out with underrun reporting disabled to avoid races. | |
13605 | * For correct bookkeeping mark this on active crtcs. | |
13606 | * | |
c5ab3bc0 DV |
13607 | * Also on gmch platforms we dont have any hardware bits to |
13608 | * disable the underrun reporting. Which means we need to start | |
13609 | * out with underrun reporting disabled also on inactive pipes, | |
13610 | * since otherwise we'll complain about the garbage we read when | |
13611 | * e.g. coming up after runtime pm. | |
13612 | * | |
4cc31489 DV |
13613 | * No protection against concurrent access is required - at |
13614 | * worst a fifo underrun happens which also sets this to false. | |
13615 | */ | |
13616 | crtc->cpu_fifo_underrun_disabled = true; | |
13617 | crtc->pch_fifo_underrun_disabled = true; | |
13618 | } | |
24929352 DV |
13619 | } |
13620 | ||
13621 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
13622 | { | |
13623 | struct intel_connector *connector; | |
13624 | struct drm_device *dev = encoder->base.dev; | |
13625 | ||
13626 | /* We need to check both for a crtc link (meaning that the | |
13627 | * encoder is active and trying to read from a pipe) and the | |
13628 | * pipe itself being active. */ | |
13629 | bool has_active_crtc = encoder->base.crtc && | |
13630 | to_intel_crtc(encoder->base.crtc)->active; | |
13631 | ||
13632 | if (encoder->connectors_active && !has_active_crtc) { | |
13633 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", | |
13634 | encoder->base.base.id, | |
8e329a03 | 13635 | encoder->base.name); |
24929352 DV |
13636 | |
13637 | /* Connector is active, but has no active pipe. This is | |
13638 | * fallout from our resume register restoring. Disable | |
13639 | * the encoder manually again. */ | |
13640 | if (encoder->base.crtc) { | |
13641 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
13642 | encoder->base.base.id, | |
8e329a03 | 13643 | encoder->base.name); |
24929352 | 13644 | encoder->disable(encoder); |
a62d1497 VS |
13645 | if (encoder->post_disable) |
13646 | encoder->post_disable(encoder); | |
24929352 | 13647 | } |
7f1950fb EE |
13648 | encoder->base.crtc = NULL; |
13649 | encoder->connectors_active = false; | |
24929352 DV |
13650 | |
13651 | /* Inconsistent output/port/pipe state happens presumably due to | |
13652 | * a bug in one of the get_hw_state functions. Or someplace else | |
13653 | * in our code, like the register restore mess on resume. Clamp | |
13654 | * things to off as a safer default. */ | |
3a3371ff | 13655 | for_each_intel_connector(dev, connector) { |
24929352 DV |
13656 | if (connector->encoder != encoder) |
13657 | continue; | |
7f1950fb EE |
13658 | connector->base.dpms = DRM_MODE_DPMS_OFF; |
13659 | connector->base.encoder = NULL; | |
24929352 DV |
13660 | } |
13661 | } | |
13662 | /* Enabled encoders without active connectors will be fixed in | |
13663 | * the crtc fixup. */ | |
13664 | } | |
13665 | ||
04098753 | 13666 | void i915_redisable_vga_power_on(struct drm_device *dev) |
0fde901f KM |
13667 | { |
13668 | struct drm_i915_private *dev_priv = dev->dev_private; | |
766aa1c4 | 13669 | u32 vga_reg = i915_vgacntrl_reg(dev); |
0fde901f | 13670 | |
04098753 ID |
13671 | if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) { |
13672 | DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n"); | |
13673 | i915_disable_vga(dev); | |
13674 | } | |
13675 | } | |
13676 | ||
13677 | void i915_redisable_vga(struct drm_device *dev) | |
13678 | { | |
13679 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13680 | ||
8dc8a27c PZ |
13681 | /* This function can be called both from intel_modeset_setup_hw_state or |
13682 | * at a very early point in our resume sequence, where the power well | |
13683 | * structures are not yet restored. Since this function is at a very | |
13684 | * paranoid "someone might have enabled VGA while we were not looking" | |
13685 | * level, just check if the power well is enabled instead of trying to | |
13686 | * follow the "don't touch the power well if we don't need it" policy | |
13687 | * the rest of the driver uses. */ | |
f458ebbc | 13688 | if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_VGA)) |
8dc8a27c PZ |
13689 | return; |
13690 | ||
04098753 | 13691 | i915_redisable_vga_power_on(dev); |
0fde901f KM |
13692 | } |
13693 | ||
98ec7739 VS |
13694 | static bool primary_get_hw_state(struct intel_crtc *crtc) |
13695 | { | |
13696 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
13697 | ||
13698 | if (!crtc->active) | |
13699 | return false; | |
13700 | ||
13701 | return I915_READ(DSPCNTR(crtc->plane)) & DISPLAY_PLANE_ENABLE; | |
13702 | } | |
13703 | ||
30e984df | 13704 | static void intel_modeset_readout_hw_state(struct drm_device *dev) |
24929352 DV |
13705 | { |
13706 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13707 | enum pipe pipe; | |
24929352 DV |
13708 | struct intel_crtc *crtc; |
13709 | struct intel_encoder *encoder; | |
13710 | struct intel_connector *connector; | |
5358901f | 13711 | int i; |
24929352 | 13712 | |
d3fcc808 | 13713 | for_each_intel_crtc(dev, crtc) { |
6e3c9717 | 13714 | memset(crtc->config, 0, sizeof(*crtc->config)); |
3b117c8f | 13715 | |
6e3c9717 | 13716 | crtc->config->quirks |= PIPE_CONFIG_QUIRK_INHERITED_MODE; |
9953599b | 13717 | |
0e8ffe1b | 13718 | crtc->active = dev_priv->display.get_pipe_config(crtc, |
6e3c9717 | 13719 | crtc->config); |
24929352 | 13720 | |
83d65738 | 13721 | crtc->base.state->enable = crtc->active; |
24929352 | 13722 | crtc->base.enabled = crtc->active; |
98ec7739 | 13723 | crtc->primary_enabled = primary_get_hw_state(crtc); |
24929352 DV |
13724 | |
13725 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
13726 | crtc->base.base.id, | |
13727 | crtc->active ? "enabled" : "disabled"); | |
13728 | } | |
13729 | ||
5358901f DV |
13730 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
13731 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
13732 | ||
3e369b76 ACO |
13733 | pll->on = pll->get_hw_state(dev_priv, pll, |
13734 | &pll->config.hw_state); | |
5358901f | 13735 | pll->active = 0; |
3e369b76 | 13736 | pll->config.crtc_mask = 0; |
d3fcc808 | 13737 | for_each_intel_crtc(dev, crtc) { |
1e6f2ddc | 13738 | if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll) { |
5358901f | 13739 | pll->active++; |
3e369b76 | 13740 | pll->config.crtc_mask |= 1 << crtc->pipe; |
1e6f2ddc | 13741 | } |
5358901f | 13742 | } |
5358901f | 13743 | |
1e6f2ddc | 13744 | DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n", |
3e369b76 | 13745 | pll->name, pll->config.crtc_mask, pll->on); |
bd2bb1b9 | 13746 | |
3e369b76 | 13747 | if (pll->config.crtc_mask) |
bd2bb1b9 | 13748 | intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); |
5358901f DV |
13749 | } |
13750 | ||
b2784e15 | 13751 | for_each_intel_encoder(dev, encoder) { |
24929352 DV |
13752 | pipe = 0; |
13753 | ||
13754 | if (encoder->get_hw_state(encoder, &pipe)) { | |
045ac3b5 JB |
13755 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
13756 | encoder->base.crtc = &crtc->base; | |
6e3c9717 | 13757 | encoder->get_config(encoder, crtc->config); |
24929352 DV |
13758 | } else { |
13759 | encoder->base.crtc = NULL; | |
13760 | } | |
13761 | ||
13762 | encoder->connectors_active = false; | |
6f2bcceb | 13763 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n", |
24929352 | 13764 | encoder->base.base.id, |
8e329a03 | 13765 | encoder->base.name, |
24929352 | 13766 | encoder->base.crtc ? "enabled" : "disabled", |
6f2bcceb | 13767 | pipe_name(pipe)); |
24929352 DV |
13768 | } |
13769 | ||
3a3371ff | 13770 | for_each_intel_connector(dev, connector) { |
24929352 DV |
13771 | if (connector->get_hw_state(connector)) { |
13772 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
13773 | connector->encoder->connectors_active = true; | |
13774 | connector->base.encoder = &connector->encoder->base; | |
13775 | } else { | |
13776 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
13777 | connector->base.encoder = NULL; | |
13778 | } | |
13779 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
13780 | connector->base.base.id, | |
c23cc417 | 13781 | connector->base.name, |
24929352 DV |
13782 | connector->base.encoder ? "enabled" : "disabled"); |
13783 | } | |
30e984df DV |
13784 | } |
13785 | ||
13786 | /* Scan out the current hw modeset state, sanitizes it and maps it into the drm | |
13787 | * and i915 state tracking structures. */ | |
13788 | void intel_modeset_setup_hw_state(struct drm_device *dev, | |
13789 | bool force_restore) | |
13790 | { | |
13791 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13792 | enum pipe pipe; | |
30e984df DV |
13793 | struct intel_crtc *crtc; |
13794 | struct intel_encoder *encoder; | |
35c95375 | 13795 | int i; |
30e984df DV |
13796 | |
13797 | intel_modeset_readout_hw_state(dev); | |
24929352 | 13798 | |
babea61d JB |
13799 | /* |
13800 | * Now that we have the config, copy it to each CRTC struct | |
13801 | * Note that this could go away if we move to using crtc_config | |
13802 | * checking everywhere. | |
13803 | */ | |
d3fcc808 | 13804 | for_each_intel_crtc(dev, crtc) { |
d330a953 | 13805 | if (crtc->active && i915.fastboot) { |
6e3c9717 ACO |
13806 | intel_mode_from_pipe_config(&crtc->base.mode, |
13807 | crtc->config); | |
babea61d JB |
13808 | DRM_DEBUG_KMS("[CRTC:%d] found active mode: ", |
13809 | crtc->base.base.id); | |
13810 | drm_mode_debug_printmodeline(&crtc->base.mode); | |
13811 | } | |
13812 | } | |
13813 | ||
24929352 | 13814 | /* HW state is read out, now we need to sanitize this mess. */ |
b2784e15 | 13815 | for_each_intel_encoder(dev, encoder) { |
24929352 DV |
13816 | intel_sanitize_encoder(encoder); |
13817 | } | |
13818 | ||
055e393f | 13819 | for_each_pipe(dev_priv, pipe) { |
24929352 DV |
13820 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
13821 | intel_sanitize_crtc(crtc); | |
6e3c9717 ACO |
13822 | intel_dump_pipe_config(crtc, crtc->config, |
13823 | "[setup_hw_state]"); | |
24929352 | 13824 | } |
9a935856 | 13825 | |
35c95375 DV |
13826 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
13827 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
13828 | ||
13829 | if (!pll->on || pll->active) | |
13830 | continue; | |
13831 | ||
13832 | DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name); | |
13833 | ||
13834 | pll->disable(dev_priv, pll); | |
13835 | pll->on = false; | |
13836 | } | |
13837 | ||
3078999f PB |
13838 | if (IS_GEN9(dev)) |
13839 | skl_wm_get_hw_state(dev); | |
13840 | else if (HAS_PCH_SPLIT(dev)) | |
243e6a44 VS |
13841 | ilk_wm_get_hw_state(dev); |
13842 | ||
45e2b5f6 | 13843 | if (force_restore) { |
7d0bc1ea VS |
13844 | i915_redisable_vga(dev); |
13845 | ||
f30da187 DV |
13846 | /* |
13847 | * We need to use raw interfaces for restoring state to avoid | |
13848 | * checking (bogus) intermediate states. | |
13849 | */ | |
055e393f | 13850 | for_each_pipe(dev_priv, pipe) { |
b5644d05 JB |
13851 | struct drm_crtc *crtc = |
13852 | dev_priv->pipe_to_crtc_mapping[pipe]; | |
f30da187 | 13853 | |
7f27126e JB |
13854 | intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, |
13855 | crtc->primary->fb); | |
45e2b5f6 DV |
13856 | } |
13857 | } else { | |
13858 | intel_modeset_update_staged_output_state(dev); | |
13859 | } | |
8af6cf88 DV |
13860 | |
13861 | intel_modeset_check_state(dev); | |
2c7111db CW |
13862 | } |
13863 | ||
13864 | void intel_modeset_gem_init(struct drm_device *dev) | |
13865 | { | |
92122789 | 13866 | struct drm_i915_private *dev_priv = dev->dev_private; |
484b41dd | 13867 | struct drm_crtc *c; |
2ff8fde1 | 13868 | struct drm_i915_gem_object *obj; |
484b41dd | 13869 | |
ae48434c ID |
13870 | mutex_lock(&dev->struct_mutex); |
13871 | intel_init_gt_powersave(dev); | |
13872 | mutex_unlock(&dev->struct_mutex); | |
13873 | ||
92122789 JB |
13874 | /* |
13875 | * There may be no VBT; and if the BIOS enabled SSC we can | |
13876 | * just keep using it to avoid unnecessary flicker. Whereas if the | |
13877 | * BIOS isn't using it, don't assume it will work even if the VBT | |
13878 | * indicates as much. | |
13879 | */ | |
13880 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
13881 | dev_priv->vbt.lvds_use_ssc = !!(I915_READ(PCH_DREF_CONTROL) & | |
13882 | DREF_SSC1_ENABLE); | |
13883 | ||
1833b134 | 13884 | intel_modeset_init_hw(dev); |
02e792fb DV |
13885 | |
13886 | intel_setup_overlay(dev); | |
484b41dd JB |
13887 | |
13888 | /* | |
13889 | * Make sure any fbs we allocated at startup are properly | |
13890 | * pinned & fenced. When we do the allocation it's too early | |
13891 | * for this. | |
13892 | */ | |
13893 | mutex_lock(&dev->struct_mutex); | |
70e1e0ec | 13894 | for_each_crtc(dev, c) { |
2ff8fde1 MR |
13895 | obj = intel_fb_obj(c->primary->fb); |
13896 | if (obj == NULL) | |
484b41dd JB |
13897 | continue; |
13898 | ||
850c4cdc TU |
13899 | if (intel_pin_and_fence_fb_obj(c->primary, |
13900 | c->primary->fb, | |
13901 | NULL)) { | |
484b41dd JB |
13902 | DRM_ERROR("failed to pin boot fb on pipe %d\n", |
13903 | to_intel_crtc(c)->pipe); | |
66e514c1 DA |
13904 | drm_framebuffer_unreference(c->primary->fb); |
13905 | c->primary->fb = NULL; | |
afd65eb4 | 13906 | update_state_fb(c->primary); |
484b41dd JB |
13907 | } |
13908 | } | |
13909 | mutex_unlock(&dev->struct_mutex); | |
0962c3c9 VS |
13910 | |
13911 | intel_backlight_register(dev); | |
79e53945 JB |
13912 | } |
13913 | ||
4932e2c3 ID |
13914 | void intel_connector_unregister(struct intel_connector *intel_connector) |
13915 | { | |
13916 | struct drm_connector *connector = &intel_connector->base; | |
13917 | ||
13918 | intel_panel_destroy_backlight(connector); | |
34ea3d38 | 13919 | drm_connector_unregister(connector); |
4932e2c3 ID |
13920 | } |
13921 | ||
79e53945 JB |
13922 | void intel_modeset_cleanup(struct drm_device *dev) |
13923 | { | |
652c393a | 13924 | struct drm_i915_private *dev_priv = dev->dev_private; |
d9255d57 | 13925 | struct drm_connector *connector; |
652c393a | 13926 | |
2eb5252e ID |
13927 | intel_disable_gt_powersave(dev); |
13928 | ||
0962c3c9 VS |
13929 | intel_backlight_unregister(dev); |
13930 | ||
fd0c0642 DV |
13931 | /* |
13932 | * Interrupts and polling as the first thing to avoid creating havoc. | |
2eb5252e | 13933 | * Too much stuff here (turning of connectors, ...) would |
fd0c0642 DV |
13934 | * experience fancy races otherwise. |
13935 | */ | |
2aeb7d3a | 13936 | intel_irq_uninstall(dev_priv); |
eb21b92b | 13937 | |
fd0c0642 DV |
13938 | /* |
13939 | * Due to the hpd irq storm handling the hotplug work can re-arm the | |
13940 | * poll handlers. Hence disable polling after hpd handling is shut down. | |
13941 | */ | |
f87ea761 | 13942 | drm_kms_helper_poll_fini(dev); |
fd0c0642 | 13943 | |
652c393a JB |
13944 | mutex_lock(&dev->struct_mutex); |
13945 | ||
723bfd70 JB |
13946 | intel_unregister_dsm_handler(); |
13947 | ||
7ff0ebcc | 13948 | intel_fbc_disable(dev); |
e70236a8 | 13949 | |
69341a5e KH |
13950 | mutex_unlock(&dev->struct_mutex); |
13951 | ||
1630fe75 CW |
13952 | /* flush any delayed tasks or pending work */ |
13953 | flush_scheduled_work(); | |
13954 | ||
db31af1d JN |
13955 | /* destroy the backlight and sysfs files before encoders/connectors */ |
13956 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
4932e2c3 ID |
13957 | struct intel_connector *intel_connector; |
13958 | ||
13959 | intel_connector = to_intel_connector(connector); | |
13960 | intel_connector->unregister(intel_connector); | |
db31af1d | 13961 | } |
d9255d57 | 13962 | |
79e53945 | 13963 | drm_mode_config_cleanup(dev); |
4d7bb011 DV |
13964 | |
13965 | intel_cleanup_overlay(dev); | |
ae48434c ID |
13966 | |
13967 | mutex_lock(&dev->struct_mutex); | |
13968 | intel_cleanup_gt_powersave(dev); | |
13969 | mutex_unlock(&dev->struct_mutex); | |
79e53945 JB |
13970 | } |
13971 | ||
f1c79df3 ZW |
13972 | /* |
13973 | * Return which encoder is currently attached for connector. | |
13974 | */ | |
df0e9248 | 13975 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 13976 | { |
df0e9248 CW |
13977 | return &intel_attached_encoder(connector)->base; |
13978 | } | |
f1c79df3 | 13979 | |
df0e9248 CW |
13980 | void intel_connector_attach_encoder(struct intel_connector *connector, |
13981 | struct intel_encoder *encoder) | |
13982 | { | |
13983 | connector->encoder = encoder; | |
13984 | drm_mode_connector_attach_encoder(&connector->base, | |
13985 | &encoder->base); | |
79e53945 | 13986 | } |
28d52043 DA |
13987 | |
13988 | /* | |
13989 | * set vga decode state - true == enable VGA decode | |
13990 | */ | |
13991 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
13992 | { | |
13993 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a885b3cc | 13994 | unsigned reg = INTEL_INFO(dev)->gen >= 6 ? SNB_GMCH_CTRL : INTEL_GMCH_CTRL; |
28d52043 DA |
13995 | u16 gmch_ctrl; |
13996 | ||
75fa041d CW |
13997 | if (pci_read_config_word(dev_priv->bridge_dev, reg, &gmch_ctrl)) { |
13998 | DRM_ERROR("failed to read control word\n"); | |
13999 | return -EIO; | |
14000 | } | |
14001 | ||
c0cc8a55 CW |
14002 | if (!!(gmch_ctrl & INTEL_GMCH_VGA_DISABLE) == !state) |
14003 | return 0; | |
14004 | ||
28d52043 DA |
14005 | if (state) |
14006 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
14007 | else | |
14008 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
75fa041d CW |
14009 | |
14010 | if (pci_write_config_word(dev_priv->bridge_dev, reg, gmch_ctrl)) { | |
14011 | DRM_ERROR("failed to write control word\n"); | |
14012 | return -EIO; | |
14013 | } | |
14014 | ||
28d52043 DA |
14015 | return 0; |
14016 | } | |
c4a1d9e4 | 14017 | |
c4a1d9e4 | 14018 | struct intel_display_error_state { |
ff57f1b0 PZ |
14019 | |
14020 | u32 power_well_driver; | |
14021 | ||
63b66e5b CW |
14022 | int num_transcoders; |
14023 | ||
c4a1d9e4 CW |
14024 | struct intel_cursor_error_state { |
14025 | u32 control; | |
14026 | u32 position; | |
14027 | u32 base; | |
14028 | u32 size; | |
52331309 | 14029 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
14030 | |
14031 | struct intel_pipe_error_state { | |
ddf9c536 | 14032 | bool power_domain_on; |
c4a1d9e4 | 14033 | u32 source; |
f301b1e1 | 14034 | u32 stat; |
52331309 | 14035 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
14036 | |
14037 | struct intel_plane_error_state { | |
14038 | u32 control; | |
14039 | u32 stride; | |
14040 | u32 size; | |
14041 | u32 pos; | |
14042 | u32 addr; | |
14043 | u32 surface; | |
14044 | u32 tile_offset; | |
52331309 | 14045 | } plane[I915_MAX_PIPES]; |
63b66e5b CW |
14046 | |
14047 | struct intel_transcoder_error_state { | |
ddf9c536 | 14048 | bool power_domain_on; |
63b66e5b CW |
14049 | enum transcoder cpu_transcoder; |
14050 | ||
14051 | u32 conf; | |
14052 | ||
14053 | u32 htotal; | |
14054 | u32 hblank; | |
14055 | u32 hsync; | |
14056 | u32 vtotal; | |
14057 | u32 vblank; | |
14058 | u32 vsync; | |
14059 | } transcoder[4]; | |
c4a1d9e4 CW |
14060 | }; |
14061 | ||
14062 | struct intel_display_error_state * | |
14063 | intel_display_capture_error_state(struct drm_device *dev) | |
14064 | { | |
fbee40df | 14065 | struct drm_i915_private *dev_priv = dev->dev_private; |
c4a1d9e4 | 14066 | struct intel_display_error_state *error; |
63b66e5b CW |
14067 | int transcoders[] = { |
14068 | TRANSCODER_A, | |
14069 | TRANSCODER_B, | |
14070 | TRANSCODER_C, | |
14071 | TRANSCODER_EDP, | |
14072 | }; | |
c4a1d9e4 CW |
14073 | int i; |
14074 | ||
63b66e5b CW |
14075 | if (INTEL_INFO(dev)->num_pipes == 0) |
14076 | return NULL; | |
14077 | ||
9d1cb914 | 14078 | error = kzalloc(sizeof(*error), GFP_ATOMIC); |
c4a1d9e4 CW |
14079 | if (error == NULL) |
14080 | return NULL; | |
14081 | ||
190be112 | 14082 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
ff57f1b0 PZ |
14083 | error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER); |
14084 | ||
055e393f | 14085 | for_each_pipe(dev_priv, i) { |
ddf9c536 | 14086 | error->pipe[i].power_domain_on = |
f458ebbc DV |
14087 | __intel_display_power_is_enabled(dev_priv, |
14088 | POWER_DOMAIN_PIPE(i)); | |
ddf9c536 | 14089 | if (!error->pipe[i].power_domain_on) |
9d1cb914 PZ |
14090 | continue; |
14091 | ||
5efb3e28 VS |
14092 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
14093 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
14094 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
c4a1d9e4 CW |
14095 | |
14096 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
14097 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
80ca378b | 14098 | if (INTEL_INFO(dev)->gen <= 3) { |
51889b35 | 14099 | error->plane[i].size = I915_READ(DSPSIZE(i)); |
80ca378b PZ |
14100 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
14101 | } | |
ca291363 PZ |
14102 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
14103 | error->plane[i].addr = I915_READ(DSPADDR(i)); | |
c4a1d9e4 CW |
14104 | if (INTEL_INFO(dev)->gen >= 4) { |
14105 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
14106 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
14107 | } | |
14108 | ||
c4a1d9e4 | 14109 | error->pipe[i].source = I915_READ(PIPESRC(i)); |
f301b1e1 | 14110 | |
3abfce77 | 14111 | if (HAS_GMCH_DISPLAY(dev)) |
f301b1e1 | 14112 | error->pipe[i].stat = I915_READ(PIPESTAT(i)); |
63b66e5b CW |
14113 | } |
14114 | ||
14115 | error->num_transcoders = INTEL_INFO(dev)->num_pipes; | |
14116 | if (HAS_DDI(dev_priv->dev)) | |
14117 | error->num_transcoders++; /* Account for eDP. */ | |
14118 | ||
14119 | for (i = 0; i < error->num_transcoders; i++) { | |
14120 | enum transcoder cpu_transcoder = transcoders[i]; | |
14121 | ||
ddf9c536 | 14122 | error->transcoder[i].power_domain_on = |
f458ebbc | 14123 | __intel_display_power_is_enabled(dev_priv, |
38cc1daf | 14124 | POWER_DOMAIN_TRANSCODER(cpu_transcoder)); |
ddf9c536 | 14125 | if (!error->transcoder[i].power_domain_on) |
9d1cb914 PZ |
14126 | continue; |
14127 | ||
63b66e5b CW |
14128 | error->transcoder[i].cpu_transcoder = cpu_transcoder; |
14129 | ||
14130 | error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder)); | |
14131 | error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder)); | |
14132 | error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder)); | |
14133 | error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder)); | |
14134 | error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder)); | |
14135 | error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder)); | |
14136 | error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder)); | |
c4a1d9e4 CW |
14137 | } |
14138 | ||
14139 | return error; | |
14140 | } | |
14141 | ||
edc3d884 MK |
14142 | #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__) |
14143 | ||
c4a1d9e4 | 14144 | void |
edc3d884 | 14145 | intel_display_print_error_state(struct drm_i915_error_state_buf *m, |
c4a1d9e4 CW |
14146 | struct drm_device *dev, |
14147 | struct intel_display_error_state *error) | |
14148 | { | |
055e393f | 14149 | struct drm_i915_private *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
14150 | int i; |
14151 | ||
63b66e5b CW |
14152 | if (!error) |
14153 | return; | |
14154 | ||
edc3d884 | 14155 | err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes); |
190be112 | 14156 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
edc3d884 | 14157 | err_printf(m, "PWR_WELL_CTL2: %08x\n", |
ff57f1b0 | 14158 | error->power_well_driver); |
055e393f | 14159 | for_each_pipe(dev_priv, i) { |
edc3d884 | 14160 | err_printf(m, "Pipe [%d]:\n", i); |
ddf9c536 ID |
14161 | err_printf(m, " Power: %s\n", |
14162 | error->pipe[i].power_domain_on ? "on" : "off"); | |
edc3d884 | 14163 | err_printf(m, " SRC: %08x\n", error->pipe[i].source); |
f301b1e1 | 14164 | err_printf(m, " STAT: %08x\n", error->pipe[i].stat); |
edc3d884 MK |
14165 | |
14166 | err_printf(m, "Plane [%d]:\n", i); | |
14167 | err_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
14168 | err_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
80ca378b | 14169 | if (INTEL_INFO(dev)->gen <= 3) { |
edc3d884 MK |
14170 | err_printf(m, " SIZE: %08x\n", error->plane[i].size); |
14171 | err_printf(m, " POS: %08x\n", error->plane[i].pos); | |
80ca378b | 14172 | } |
4b71a570 | 14173 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
edc3d884 | 14174 | err_printf(m, " ADDR: %08x\n", error->plane[i].addr); |
c4a1d9e4 | 14175 | if (INTEL_INFO(dev)->gen >= 4) { |
edc3d884 MK |
14176 | err_printf(m, " SURF: %08x\n", error->plane[i].surface); |
14177 | err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
c4a1d9e4 CW |
14178 | } |
14179 | ||
edc3d884 MK |
14180 | err_printf(m, "Cursor [%d]:\n", i); |
14181 | err_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
14182 | err_printf(m, " POS: %08x\n", error->cursor[i].position); | |
14183 | err_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
c4a1d9e4 | 14184 | } |
63b66e5b CW |
14185 | |
14186 | for (i = 0; i < error->num_transcoders; i++) { | |
1cf84bb6 | 14187 | err_printf(m, "CPU transcoder: %c\n", |
63b66e5b | 14188 | transcoder_name(error->transcoder[i].cpu_transcoder)); |
ddf9c536 ID |
14189 | err_printf(m, " Power: %s\n", |
14190 | error->transcoder[i].power_domain_on ? "on" : "off"); | |
63b66e5b CW |
14191 | err_printf(m, " CONF: %08x\n", error->transcoder[i].conf); |
14192 | err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal); | |
14193 | err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank); | |
14194 | err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync); | |
14195 | err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal); | |
14196 | err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank); | |
14197 | err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync); | |
14198 | } | |
c4a1d9e4 | 14199 | } |
e2fcdaa9 VS |
14200 | |
14201 | void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file) | |
14202 | { | |
14203 | struct intel_crtc *crtc; | |
14204 | ||
14205 | for_each_intel_crtc(dev, crtc) { | |
14206 | struct intel_unpin_work *work; | |
e2fcdaa9 | 14207 | |
5e2d7afc | 14208 | spin_lock_irq(&dev->event_lock); |
e2fcdaa9 VS |
14209 | |
14210 | work = crtc->unpin_work; | |
14211 | ||
14212 | if (work && work->event && | |
14213 | work->event->base.file_priv == file) { | |
14214 | kfree(work->event); | |
14215 | work->event = NULL; | |
14216 | } | |
14217 | ||
5e2d7afc | 14218 | spin_unlock_irq(&dev->event_lock); |
e2fcdaa9 VS |
14219 | } |
14220 | } |