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1da177e4 LT |
1 | /* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*- |
2 | */ | |
0d6aa60b | 3 | /* |
bc54fd1a | 4 | * |
1da177e4 LT |
5 | * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. |
6 | * All Rights Reserved. | |
bc54fd1a DA |
7 | * |
8 | * Permission is hereby granted, free of charge, to any person obtaining a | |
9 | * copy of this software and associated documentation files (the | |
10 | * "Software"), to deal in the Software without restriction, including | |
11 | * without limitation the rights to use, copy, modify, merge, publish, | |
12 | * distribute, sub license, and/or sell copies of the Software, and to | |
13 | * permit persons to whom the Software is furnished to do so, subject to | |
14 | * the following conditions: | |
15 | * | |
16 | * The above copyright notice and this permission notice (including the | |
17 | * next paragraph) shall be included in all copies or substantial portions | |
18 | * of the Software. | |
19 | * | |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
21 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
22 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. | |
23 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR | |
24 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, | |
25 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE | |
26 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
27 | * | |
0d6aa60b | 28 | */ |
1da177e4 | 29 | |
5669fcac | 30 | #include <linux/device.h> |
e5747e3a | 31 | #include <linux/acpi.h> |
760285e7 DH |
32 | #include <drm/drmP.h> |
33 | #include <drm/i915_drm.h> | |
1da177e4 | 34 | #include "i915_drv.h" |
990bbdad | 35 | #include "i915_trace.h" |
f49f0586 | 36 | #include "intel_drv.h" |
1da177e4 | 37 | |
79e53945 | 38 | #include <linux/console.h> |
e0cd3608 | 39 | #include <linux/module.h> |
d6102977 | 40 | #include <linux/pm_runtime.h> |
760285e7 | 41 | #include <drm/drm_crtc_helper.h> |
79e53945 | 42 | |
112b715e KH |
43 | static struct drm_driver driver; |
44 | ||
a57c774a AK |
45 | #define GEN_DEFAULT_PIPEOFFSETS \ |
46 | .pipe_offsets = { PIPE_A_OFFSET, PIPE_B_OFFSET, \ | |
47 | PIPE_C_OFFSET, PIPE_EDP_OFFSET }, \ | |
48 | .trans_offsets = { TRANSCODER_A_OFFSET, TRANSCODER_B_OFFSET, \ | |
49 | TRANSCODER_C_OFFSET, TRANSCODER_EDP_OFFSET }, \ | |
a57c774a AK |
50 | .palette_offsets = { PALETTE_A_OFFSET, PALETTE_B_OFFSET } |
51 | ||
84fd4f4e RB |
52 | #define GEN_CHV_PIPEOFFSETS \ |
53 | .pipe_offsets = { PIPE_A_OFFSET, PIPE_B_OFFSET, \ | |
54 | CHV_PIPE_C_OFFSET }, \ | |
55 | .trans_offsets = { TRANSCODER_A_OFFSET, TRANSCODER_B_OFFSET, \ | |
56 | CHV_TRANSCODER_C_OFFSET, }, \ | |
84fd4f4e RB |
57 | .palette_offsets = { PALETTE_A_OFFSET, PALETTE_B_OFFSET, \ |
58 | CHV_PALETTE_C_OFFSET } | |
a57c774a | 59 | |
5efb3e28 VS |
60 | #define CURSOR_OFFSETS \ |
61 | .cursor_offsets = { CURSOR_A_OFFSET, CURSOR_B_OFFSET, CHV_CURSOR_C_OFFSET } | |
62 | ||
63 | #define IVB_CURSOR_OFFSETS \ | |
64 | .cursor_offsets = { CURSOR_A_OFFSET, IVB_CURSOR_B_OFFSET, IVB_CURSOR_C_OFFSET } | |
65 | ||
9a7e8492 | 66 | static const struct intel_device_info intel_i830_info = { |
7eb552ae | 67 | .gen = 2, .is_mobile = 1, .cursor_needs_physical = 1, .num_pipes = 2, |
31578148 | 68 | .has_overlay = 1, .overlay_needs_physical = 1, |
73ae478c | 69 | .ring_mask = RENDER_RING, |
a57c774a | 70 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 71 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
72 | }; |
73 | ||
9a7e8492 | 74 | static const struct intel_device_info intel_845g_info = { |
7eb552ae | 75 | .gen = 2, .num_pipes = 1, |
31578148 | 76 | .has_overlay = 1, .overlay_needs_physical = 1, |
73ae478c | 77 | .ring_mask = RENDER_RING, |
a57c774a | 78 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 79 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
80 | }; |
81 | ||
9a7e8492 | 82 | static const struct intel_device_info intel_i85x_info = { |
7eb552ae | 83 | .gen = 2, .is_i85x = 1, .is_mobile = 1, .num_pipes = 2, |
5ce8ba7c | 84 | .cursor_needs_physical = 1, |
31578148 | 85 | .has_overlay = 1, .overlay_needs_physical = 1, |
fd70d52a | 86 | .has_fbc = 1, |
73ae478c | 87 | .ring_mask = RENDER_RING, |
a57c774a | 88 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 89 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
90 | }; |
91 | ||
9a7e8492 | 92 | static const struct intel_device_info intel_i865g_info = { |
7eb552ae | 93 | .gen = 2, .num_pipes = 1, |
31578148 | 94 | .has_overlay = 1, .overlay_needs_physical = 1, |
73ae478c | 95 | .ring_mask = RENDER_RING, |
a57c774a | 96 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 97 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
98 | }; |
99 | ||
9a7e8492 | 100 | static const struct intel_device_info intel_i915g_info = { |
7eb552ae | 101 | .gen = 3, .is_i915g = 1, .cursor_needs_physical = 1, .num_pipes = 2, |
31578148 | 102 | .has_overlay = 1, .overlay_needs_physical = 1, |
73ae478c | 103 | .ring_mask = RENDER_RING, |
a57c774a | 104 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 105 | CURSOR_OFFSETS, |
cfdf1fa2 | 106 | }; |
9a7e8492 | 107 | static const struct intel_device_info intel_i915gm_info = { |
7eb552ae | 108 | .gen = 3, .is_mobile = 1, .num_pipes = 2, |
b295d1b6 | 109 | .cursor_needs_physical = 1, |
31578148 | 110 | .has_overlay = 1, .overlay_needs_physical = 1, |
a6c45cf0 | 111 | .supports_tv = 1, |
fd70d52a | 112 | .has_fbc = 1, |
73ae478c | 113 | .ring_mask = RENDER_RING, |
a57c774a | 114 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 115 | CURSOR_OFFSETS, |
cfdf1fa2 | 116 | }; |
9a7e8492 | 117 | static const struct intel_device_info intel_i945g_info = { |
7eb552ae | 118 | .gen = 3, .has_hotplug = 1, .cursor_needs_physical = 1, .num_pipes = 2, |
31578148 | 119 | .has_overlay = 1, .overlay_needs_physical = 1, |
73ae478c | 120 | .ring_mask = RENDER_RING, |
a57c774a | 121 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 122 | CURSOR_OFFSETS, |
cfdf1fa2 | 123 | }; |
9a7e8492 | 124 | static const struct intel_device_info intel_i945gm_info = { |
7eb552ae | 125 | .gen = 3, .is_i945gm = 1, .is_mobile = 1, .num_pipes = 2, |
b295d1b6 | 126 | .has_hotplug = 1, .cursor_needs_physical = 1, |
31578148 | 127 | .has_overlay = 1, .overlay_needs_physical = 1, |
a6c45cf0 | 128 | .supports_tv = 1, |
fd70d52a | 129 | .has_fbc = 1, |
73ae478c | 130 | .ring_mask = RENDER_RING, |
a57c774a | 131 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 132 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
133 | }; |
134 | ||
9a7e8492 | 135 | static const struct intel_device_info intel_i965g_info = { |
7eb552ae | 136 | .gen = 4, .is_broadwater = 1, .num_pipes = 2, |
c96c3a8c | 137 | .has_hotplug = 1, |
31578148 | 138 | .has_overlay = 1, |
73ae478c | 139 | .ring_mask = RENDER_RING, |
a57c774a | 140 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 141 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
142 | }; |
143 | ||
9a7e8492 | 144 | static const struct intel_device_info intel_i965gm_info = { |
7eb552ae | 145 | .gen = 4, .is_crestline = 1, .num_pipes = 2, |
e3c4e5dd | 146 | .is_mobile = 1, .has_fbc = 1, .has_hotplug = 1, |
31578148 | 147 | .has_overlay = 1, |
a6c45cf0 | 148 | .supports_tv = 1, |
73ae478c | 149 | .ring_mask = RENDER_RING, |
a57c774a | 150 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 151 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
152 | }; |
153 | ||
9a7e8492 | 154 | static const struct intel_device_info intel_g33_info = { |
7eb552ae | 155 | .gen = 3, .is_g33 = 1, .num_pipes = 2, |
c96c3a8c | 156 | .need_gfx_hws = 1, .has_hotplug = 1, |
31578148 | 157 | .has_overlay = 1, |
73ae478c | 158 | .ring_mask = RENDER_RING, |
a57c774a | 159 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 160 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
161 | }; |
162 | ||
9a7e8492 | 163 | static const struct intel_device_info intel_g45_info = { |
7eb552ae | 164 | .gen = 4, .is_g4x = 1, .need_gfx_hws = 1, .num_pipes = 2, |
c96c3a8c | 165 | .has_pipe_cxsr = 1, .has_hotplug = 1, |
73ae478c | 166 | .ring_mask = RENDER_RING | BSD_RING, |
a57c774a | 167 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 168 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
169 | }; |
170 | ||
9a7e8492 | 171 | static const struct intel_device_info intel_gm45_info = { |
7eb552ae | 172 | .gen = 4, .is_g4x = 1, .num_pipes = 2, |
e3c4e5dd | 173 | .is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1, |
c96c3a8c | 174 | .has_pipe_cxsr = 1, .has_hotplug = 1, |
a6c45cf0 | 175 | .supports_tv = 1, |
73ae478c | 176 | .ring_mask = RENDER_RING | BSD_RING, |
a57c774a | 177 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 178 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
179 | }; |
180 | ||
9a7e8492 | 181 | static const struct intel_device_info intel_pineview_info = { |
7eb552ae | 182 | .gen = 3, .is_g33 = 1, .is_pineview = 1, .is_mobile = 1, .num_pipes = 2, |
c96c3a8c | 183 | .need_gfx_hws = 1, .has_hotplug = 1, |
31578148 | 184 | .has_overlay = 1, |
a57c774a | 185 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 186 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
187 | }; |
188 | ||
9a7e8492 | 189 | static const struct intel_device_info intel_ironlake_d_info = { |
7eb552ae | 190 | .gen = 5, .num_pipes = 2, |
5a117db7 | 191 | .need_gfx_hws = 1, .has_hotplug = 1, |
73ae478c | 192 | .ring_mask = RENDER_RING | BSD_RING, |
a57c774a | 193 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 194 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
195 | }; |
196 | ||
9a7e8492 | 197 | static const struct intel_device_info intel_ironlake_m_info = { |
7eb552ae | 198 | .gen = 5, .is_mobile = 1, .num_pipes = 2, |
e3c4e5dd | 199 | .need_gfx_hws = 1, .has_hotplug = 1, |
c1a9f047 | 200 | .has_fbc = 1, |
73ae478c | 201 | .ring_mask = RENDER_RING | BSD_RING, |
a57c774a | 202 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 203 | CURSOR_OFFSETS, |
cfdf1fa2 KH |
204 | }; |
205 | ||
9a7e8492 | 206 | static const struct intel_device_info intel_sandybridge_d_info = { |
7eb552ae | 207 | .gen = 6, .num_pipes = 2, |
c96c3a8c | 208 | .need_gfx_hws = 1, .has_hotplug = 1, |
cbaef0f1 | 209 | .has_fbc = 1, |
73ae478c | 210 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING, |
3d29b842 | 211 | .has_llc = 1, |
a57c774a | 212 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 213 | CURSOR_OFFSETS, |
f6e450a6 EA |
214 | }; |
215 | ||
9a7e8492 | 216 | static const struct intel_device_info intel_sandybridge_m_info = { |
7eb552ae | 217 | .gen = 6, .is_mobile = 1, .num_pipes = 2, |
c96c3a8c | 218 | .need_gfx_hws = 1, .has_hotplug = 1, |
9c04f015 | 219 | .has_fbc = 1, |
73ae478c | 220 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING, |
3d29b842 | 221 | .has_llc = 1, |
a57c774a | 222 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 223 | CURSOR_OFFSETS, |
a13e4093 EA |
224 | }; |
225 | ||
219f4fdb BW |
226 | #define GEN7_FEATURES \ |
227 | .gen = 7, .num_pipes = 3, \ | |
228 | .need_gfx_hws = 1, .has_hotplug = 1, \ | |
cbaef0f1 | 229 | .has_fbc = 1, \ |
73ae478c | 230 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING, \ |
ab484f8f | 231 | .has_llc = 1 |
219f4fdb | 232 | |
c76b615c | 233 | static const struct intel_device_info intel_ivybridge_d_info = { |
219f4fdb BW |
234 | GEN7_FEATURES, |
235 | .is_ivybridge = 1, | |
a57c774a | 236 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 237 | IVB_CURSOR_OFFSETS, |
c76b615c JB |
238 | }; |
239 | ||
240 | static const struct intel_device_info intel_ivybridge_m_info = { | |
219f4fdb BW |
241 | GEN7_FEATURES, |
242 | .is_ivybridge = 1, | |
243 | .is_mobile = 1, | |
a57c774a | 244 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 245 | IVB_CURSOR_OFFSETS, |
c76b615c JB |
246 | }; |
247 | ||
999bcdea BW |
248 | static const struct intel_device_info intel_ivybridge_q_info = { |
249 | GEN7_FEATURES, | |
250 | .is_ivybridge = 1, | |
251 | .num_pipes = 0, /* legal, last one wins */ | |
a57c774a | 252 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 253 | IVB_CURSOR_OFFSETS, |
999bcdea BW |
254 | }; |
255 | ||
70a3eb7a | 256 | static const struct intel_device_info intel_valleyview_m_info = { |
219f4fdb BW |
257 | GEN7_FEATURES, |
258 | .is_mobile = 1, | |
259 | .num_pipes = 2, | |
70a3eb7a | 260 | .is_valleyview = 1, |
fba5d532 | 261 | .display_mmio_offset = VLV_DISPLAY_BASE, |
cbaef0f1 | 262 | .has_fbc = 0, /* legal, last one wins */ |
30ccd964 | 263 | .has_llc = 0, /* legal, last one wins */ |
a57c774a | 264 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 265 | CURSOR_OFFSETS, |
70a3eb7a JB |
266 | }; |
267 | ||
268 | static const struct intel_device_info intel_valleyview_d_info = { | |
219f4fdb BW |
269 | GEN7_FEATURES, |
270 | .num_pipes = 2, | |
70a3eb7a | 271 | .is_valleyview = 1, |
fba5d532 | 272 | .display_mmio_offset = VLV_DISPLAY_BASE, |
cbaef0f1 | 273 | .has_fbc = 0, /* legal, last one wins */ |
30ccd964 | 274 | .has_llc = 0, /* legal, last one wins */ |
a57c774a | 275 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 276 | CURSOR_OFFSETS, |
70a3eb7a JB |
277 | }; |
278 | ||
4cae9ae0 | 279 | static const struct intel_device_info intel_haswell_d_info = { |
219f4fdb BW |
280 | GEN7_FEATURES, |
281 | .is_haswell = 1, | |
dd93be58 | 282 | .has_ddi = 1, |
30568c45 | 283 | .has_fpga_dbg = 1, |
73ae478c | 284 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, |
a57c774a | 285 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 286 | IVB_CURSOR_OFFSETS, |
4cae9ae0 ED |
287 | }; |
288 | ||
289 | static const struct intel_device_info intel_haswell_m_info = { | |
219f4fdb BW |
290 | GEN7_FEATURES, |
291 | .is_haswell = 1, | |
292 | .is_mobile = 1, | |
dd93be58 | 293 | .has_ddi = 1, |
30568c45 | 294 | .has_fpga_dbg = 1, |
73ae478c | 295 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, |
a57c774a | 296 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 297 | IVB_CURSOR_OFFSETS, |
c76b615c JB |
298 | }; |
299 | ||
4d4dead6 | 300 | static const struct intel_device_info intel_broadwell_d_info = { |
4b30553d | 301 | .gen = 8, .num_pipes = 3, |
4d4dead6 BW |
302 | .need_gfx_hws = 1, .has_hotplug = 1, |
303 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, | |
304 | .has_llc = 1, | |
305 | .has_ddi = 1, | |
66bc2cab | 306 | .has_fpga_dbg = 1, |
8f94d24b | 307 | .has_fbc = 1, |
a57c774a | 308 | GEN_DEFAULT_PIPEOFFSETS, |
5efb3e28 | 309 | IVB_CURSOR_OFFSETS, |
4d4dead6 BW |
310 | }; |
311 | ||
312 | static const struct intel_device_info intel_broadwell_m_info = { | |
4b30553d | 313 | .gen = 8, .is_mobile = 1, .num_pipes = 3, |
4d4dead6 BW |
314 | .need_gfx_hws = 1, .has_hotplug = 1, |
315 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, | |
316 | .has_llc = 1, | |
317 | .has_ddi = 1, | |
66bc2cab | 318 | .has_fpga_dbg = 1, |
8f94d24b | 319 | .has_fbc = 1, |
a57c774a | 320 | GEN_DEFAULT_PIPEOFFSETS, |
15d24aa5 | 321 | IVB_CURSOR_OFFSETS, |
4d4dead6 BW |
322 | }; |
323 | ||
fd3c269f ZY |
324 | static const struct intel_device_info intel_broadwell_gt3d_info = { |
325 | .gen = 8, .num_pipes = 3, | |
326 | .need_gfx_hws = 1, .has_hotplug = 1, | |
845f74a7 | 327 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING, |
fd3c269f ZY |
328 | .has_llc = 1, |
329 | .has_ddi = 1, | |
66bc2cab | 330 | .has_fpga_dbg = 1, |
fd3c269f ZY |
331 | .has_fbc = 1, |
332 | GEN_DEFAULT_PIPEOFFSETS, | |
15d24aa5 | 333 | IVB_CURSOR_OFFSETS, |
fd3c269f ZY |
334 | }; |
335 | ||
336 | static const struct intel_device_info intel_broadwell_gt3m_info = { | |
337 | .gen = 8, .is_mobile = 1, .num_pipes = 3, | |
338 | .need_gfx_hws = 1, .has_hotplug = 1, | |
845f74a7 | 339 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING, |
fd3c269f ZY |
340 | .has_llc = 1, |
341 | .has_ddi = 1, | |
66bc2cab | 342 | .has_fpga_dbg = 1, |
fd3c269f ZY |
343 | .has_fbc = 1, |
344 | GEN_DEFAULT_PIPEOFFSETS, | |
5efb3e28 | 345 | IVB_CURSOR_OFFSETS, |
fd3c269f ZY |
346 | }; |
347 | ||
7d87a7f7 VS |
348 | static const struct intel_device_info intel_cherryview_info = { |
349 | .is_preliminary = 1, | |
07fddb14 | 350 | .gen = 8, .num_pipes = 3, |
7d87a7f7 VS |
351 | .need_gfx_hws = 1, .has_hotplug = 1, |
352 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, | |
353 | .is_valleyview = 1, | |
354 | .display_mmio_offset = VLV_DISPLAY_BASE, | |
84fd4f4e | 355 | GEN_CHV_PIPEOFFSETS, |
5efb3e28 | 356 | CURSOR_OFFSETS, |
7d87a7f7 VS |
357 | }; |
358 | ||
72bbf0af DL |
359 | static const struct intel_device_info intel_skylake_info = { |
360 | .is_preliminary = 1, | |
361 | .gen = 9, .num_pipes = 3, | |
362 | .need_gfx_hws = 1, .has_hotplug = 1, | |
363 | .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, | |
364 | .has_llc = 1, | |
365 | .has_ddi = 1, | |
366 | GEN_DEFAULT_PIPEOFFSETS, | |
367 | IVB_CURSOR_OFFSETS, | |
368 | }; | |
369 | ||
a0a18075 JB |
370 | /* |
371 | * Make sure any device matches here are from most specific to most | |
372 | * general. For example, since the Quanta match is based on the subsystem | |
373 | * and subvendor IDs, we need it to come before the more general IVB | |
374 | * PCI ID matches, otherwise we'll use the wrong info struct above. | |
375 | */ | |
376 | #define INTEL_PCI_IDS \ | |
377 | INTEL_I830_IDS(&intel_i830_info), \ | |
378 | INTEL_I845G_IDS(&intel_845g_info), \ | |
379 | INTEL_I85X_IDS(&intel_i85x_info), \ | |
380 | INTEL_I865G_IDS(&intel_i865g_info), \ | |
381 | INTEL_I915G_IDS(&intel_i915g_info), \ | |
382 | INTEL_I915GM_IDS(&intel_i915gm_info), \ | |
383 | INTEL_I945G_IDS(&intel_i945g_info), \ | |
384 | INTEL_I945GM_IDS(&intel_i945gm_info), \ | |
385 | INTEL_I965G_IDS(&intel_i965g_info), \ | |
386 | INTEL_G33_IDS(&intel_g33_info), \ | |
387 | INTEL_I965GM_IDS(&intel_i965gm_info), \ | |
388 | INTEL_GM45_IDS(&intel_gm45_info), \ | |
389 | INTEL_G45_IDS(&intel_g45_info), \ | |
390 | INTEL_PINEVIEW_IDS(&intel_pineview_info), \ | |
391 | INTEL_IRONLAKE_D_IDS(&intel_ironlake_d_info), \ | |
392 | INTEL_IRONLAKE_M_IDS(&intel_ironlake_m_info), \ | |
393 | INTEL_SNB_D_IDS(&intel_sandybridge_d_info), \ | |
394 | INTEL_SNB_M_IDS(&intel_sandybridge_m_info), \ | |
395 | INTEL_IVB_Q_IDS(&intel_ivybridge_q_info), /* must be first IVB */ \ | |
396 | INTEL_IVB_M_IDS(&intel_ivybridge_m_info), \ | |
397 | INTEL_IVB_D_IDS(&intel_ivybridge_d_info), \ | |
398 | INTEL_HSW_D_IDS(&intel_haswell_d_info), \ | |
399 | INTEL_HSW_M_IDS(&intel_haswell_m_info), \ | |
400 | INTEL_VLV_M_IDS(&intel_valleyview_m_info), \ | |
4d4dead6 | 401 | INTEL_VLV_D_IDS(&intel_valleyview_d_info), \ |
fd3c269f ZY |
402 | INTEL_BDW_GT12M_IDS(&intel_broadwell_m_info), \ |
403 | INTEL_BDW_GT12D_IDS(&intel_broadwell_d_info), \ | |
404 | INTEL_BDW_GT3M_IDS(&intel_broadwell_gt3m_info), \ | |
7d87a7f7 | 405 | INTEL_BDW_GT3D_IDS(&intel_broadwell_gt3d_info), \ |
72bbf0af DL |
406 | INTEL_CHV_IDS(&intel_cherryview_info), \ |
407 | INTEL_SKL_IDS(&intel_skylake_info) | |
a0a18075 | 408 | |
6103da0d | 409 | static const struct pci_device_id pciidlist[] = { /* aka */ |
a0a18075 | 410 | INTEL_PCI_IDS, |
49ae35f2 | 411 | {0, 0, 0} |
1da177e4 LT |
412 | }; |
413 | ||
79e53945 JB |
414 | #if defined(CONFIG_DRM_I915_KMS) |
415 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
416 | #endif | |
417 | ||
0206e353 | 418 | void intel_detect_pch(struct drm_device *dev) |
3bad0781 ZW |
419 | { |
420 | struct drm_i915_private *dev_priv = dev->dev_private; | |
bcdb72ac | 421 | struct pci_dev *pch = NULL; |
3bad0781 | 422 | |
ce1bb329 BW |
423 | /* In all current cases, num_pipes is equivalent to the PCH_NOP setting |
424 | * (which really amounts to a PCH but no South Display). | |
425 | */ | |
426 | if (INTEL_INFO(dev)->num_pipes == 0) { | |
427 | dev_priv->pch_type = PCH_NOP; | |
ce1bb329 BW |
428 | return; |
429 | } | |
430 | ||
3bad0781 ZW |
431 | /* |
432 | * The reason to probe ISA bridge instead of Dev31:Fun0 is to | |
433 | * make graphics device passthrough work easy for VMM, that only | |
434 | * need to expose ISA bridge to let driver know the real hardware | |
435 | * underneath. This is a requirement from virtualization team. | |
6a9c4b35 RG |
436 | * |
437 | * In some virtualized environments (e.g. XEN), there is irrelevant | |
438 | * ISA bridge in the system. To work reliably, we should scan trhough | |
439 | * all the ISA bridge devices and check for the first match, instead | |
440 | * of only checking the first one. | |
3bad0781 | 441 | */ |
bcdb72ac | 442 | while ((pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, pch))) { |
3bad0781 | 443 | if (pch->vendor == PCI_VENDOR_ID_INTEL) { |
bcdb72ac | 444 | unsigned short id = pch->device & INTEL_PCH_DEVICE_ID_MASK; |
17a303ec | 445 | dev_priv->pch_id = id; |
3bad0781 | 446 | |
90711d50 JB |
447 | if (id == INTEL_PCH_IBX_DEVICE_ID_TYPE) { |
448 | dev_priv->pch_type = PCH_IBX; | |
449 | DRM_DEBUG_KMS("Found Ibex Peak PCH\n"); | |
7fcb83cd | 450 | WARN_ON(!IS_GEN5(dev)); |
90711d50 | 451 | } else if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) { |
3bad0781 ZW |
452 | dev_priv->pch_type = PCH_CPT; |
453 | DRM_DEBUG_KMS("Found CougarPoint PCH\n"); | |
7fcb83cd | 454 | WARN_ON(!(IS_GEN6(dev) || IS_IVYBRIDGE(dev))); |
c792513b JB |
455 | } else if (id == INTEL_PCH_PPT_DEVICE_ID_TYPE) { |
456 | /* PantherPoint is CPT compatible */ | |
457 | dev_priv->pch_type = PCH_CPT; | |
492ab669 | 458 | DRM_DEBUG_KMS("Found PantherPoint PCH\n"); |
7fcb83cd | 459 | WARN_ON(!(IS_GEN6(dev) || IS_IVYBRIDGE(dev))); |
eb877ebf ED |
460 | } else if (id == INTEL_PCH_LPT_DEVICE_ID_TYPE) { |
461 | dev_priv->pch_type = PCH_LPT; | |
462 | DRM_DEBUG_KMS("Found LynxPoint PCH\n"); | |
7fcb83cd | 463 | WARN_ON(!IS_HASWELL(dev)); |
08e1413d | 464 | WARN_ON(IS_ULT(dev)); |
018f52c9 PZ |
465 | } else if (IS_BROADWELL(dev)) { |
466 | dev_priv->pch_type = PCH_LPT; | |
467 | dev_priv->pch_id = | |
468 | INTEL_PCH_LPT_LP_DEVICE_ID_TYPE; | |
469 | DRM_DEBUG_KMS("This is Broadwell, assuming " | |
470 | "LynxPoint LP PCH\n"); | |
e76e0634 BW |
471 | } else if (id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) { |
472 | dev_priv->pch_type = PCH_LPT; | |
473 | DRM_DEBUG_KMS("Found LynxPoint LP PCH\n"); | |
474 | WARN_ON(!IS_HASWELL(dev)); | |
475 | WARN_ON(!IS_ULT(dev)); | |
bcdb72ac ID |
476 | } else |
477 | continue; | |
478 | ||
6a9c4b35 | 479 | break; |
3bad0781 | 480 | } |
3bad0781 | 481 | } |
6a9c4b35 | 482 | if (!pch) |
bcdb72ac ID |
483 | DRM_DEBUG_KMS("No PCH found.\n"); |
484 | ||
485 | pci_dev_put(pch); | |
3bad0781 ZW |
486 | } |
487 | ||
2911a35b BW |
488 | bool i915_semaphore_is_enabled(struct drm_device *dev) |
489 | { | |
490 | if (INTEL_INFO(dev)->gen < 6) | |
a08acaf2 | 491 | return false; |
2911a35b | 492 | |
d330a953 JN |
493 | if (i915.semaphores >= 0) |
494 | return i915.semaphores; | |
2911a35b | 495 | |
71386ef9 OM |
496 | /* TODO: make semaphores and Execlists play nicely together */ |
497 | if (i915.enable_execlists) | |
498 | return false; | |
499 | ||
be71eabe RV |
500 | /* Until we get further testing... */ |
501 | if (IS_GEN8(dev)) | |
502 | return false; | |
503 | ||
59de3295 | 504 | #ifdef CONFIG_INTEL_IOMMU |
2911a35b | 505 | /* Enable semaphores on SNB when IO remapping is off */ |
59de3295 DV |
506 | if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped) |
507 | return false; | |
508 | #endif | |
2911a35b | 509 | |
a08acaf2 | 510 | return true; |
2911a35b BW |
511 | } |
512 | ||
1d0d343a ID |
513 | void intel_hpd_cancel_work(struct drm_i915_private *dev_priv) |
514 | { | |
515 | spin_lock_irq(&dev_priv->irq_lock); | |
516 | ||
517 | dev_priv->long_hpd_port_mask = 0; | |
518 | dev_priv->short_hpd_port_mask = 0; | |
519 | dev_priv->hpd_event_bits = 0; | |
520 | ||
521 | spin_unlock_irq(&dev_priv->irq_lock); | |
522 | ||
523 | cancel_work_sync(&dev_priv->dig_port_work); | |
524 | cancel_work_sync(&dev_priv->hotplug_work); | |
525 | cancel_delayed_work_sync(&dev_priv->hotplug_reenable_work); | |
526 | } | |
527 | ||
07f9cd0b ID |
528 | static void intel_suspend_encoders(struct drm_i915_private *dev_priv) |
529 | { | |
530 | struct drm_device *dev = dev_priv->dev; | |
531 | struct drm_encoder *encoder; | |
532 | ||
533 | drm_modeset_lock_all(dev); | |
534 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
535 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); | |
536 | ||
537 | if (intel_encoder->suspend) | |
538 | intel_encoder->suspend(intel_encoder); | |
539 | } | |
540 | drm_modeset_unlock_all(dev); | |
541 | } | |
542 | ||
ebc32824 | 543 | static int intel_suspend_complete(struct drm_i915_private *dev_priv); |
016970be SK |
544 | static int intel_resume_prepare(struct drm_i915_private *dev_priv, |
545 | bool rpm_resume); | |
ebc32824 | 546 | |
84b79f8d | 547 | static int i915_drm_freeze(struct drm_device *dev) |
ba8bbcf6 | 548 | { |
61caf87c | 549 | struct drm_i915_private *dev_priv = dev->dev_private; |
24576d23 | 550 | struct drm_crtc *crtc; |
e5747e3a | 551 | pci_power_t opregion_target_state; |
61caf87c | 552 | |
b8efb17b ZR |
553 | /* ignore lid events during suspend */ |
554 | mutex_lock(&dev_priv->modeset_restore_lock); | |
555 | dev_priv->modeset_restore = MODESET_SUSPENDED; | |
556 | mutex_unlock(&dev_priv->modeset_restore_lock); | |
557 | ||
c67a470b PZ |
558 | /* We do a lot of poking in a lot of registers, make sure they work |
559 | * properly. */ | |
da7e29bd | 560 | intel_display_set_init_power(dev_priv, true); |
cb10799c | 561 | |
5bcf719b DA |
562 | drm_kms_helper_poll_disable(dev); |
563 | ||
ba8bbcf6 | 564 | pci_save_state(dev->pdev); |
ba8bbcf6 | 565 | |
5669fcac | 566 | /* If KMS is active, we do the leavevt stuff here */ |
226485e9 | 567 | if (drm_core_check_feature(dev, DRIVER_MODESET)) { |
db1b76ca DV |
568 | int error; |
569 | ||
45c5f202 | 570 | error = i915_gem_suspend(dev); |
84b79f8d | 571 | if (error) { |
226485e9 | 572 | dev_err(&dev->pdev->dev, |
84b79f8d RW |
573 | "GEM idle failed, resume might fail\n"); |
574 | return error; | |
575 | } | |
a261b246 | 576 | |
24576d23 JB |
577 | /* |
578 | * Disable CRTCs directly since we want to preserve sw state | |
b04c5bd6 | 579 | * for _thaw. Also, power gate the CRTC power wells. |
24576d23 | 580 | */ |
6e9f798d | 581 | drm_modeset_lock_all(dev); |
b04c5bd6 BF |
582 | for_each_crtc(dev, crtc) |
583 | intel_crtc_control(crtc, false); | |
6e9f798d | 584 | drm_modeset_unlock_all(dev); |
7d708ee4 | 585 | |
0e32b39c | 586 | intel_dp_mst_suspend(dev); |
09b64267 DA |
587 | |
588 | flush_delayed_work(&dev_priv->rps.delayed_resume_work); | |
589 | ||
0e32b39c | 590 | intel_runtime_pm_disable_interrupts(dev); |
1d0d343a | 591 | intel_hpd_cancel_work(dev_priv); |
0e32b39c | 592 | |
07f9cd0b ID |
593 | intel_suspend_encoders(dev_priv); |
594 | ||
09b64267 DA |
595 | intel_suspend_gt_powersave(dev); |
596 | ||
7d708ee4 | 597 | intel_modeset_suspend_hw(dev); |
5669fcac JB |
598 | } |
599 | ||
828c7908 BW |
600 | i915_gem_suspend_gtt_mappings(dev); |
601 | ||
9e06dd39 JB |
602 | i915_save_state(dev); |
603 | ||
95fa2eee ID |
604 | opregion_target_state = PCI_D3cold; |
605 | #if IS_ENABLED(CONFIG_ACPI_SLEEP) | |
606 | if (acpi_target_system_state() < ACPI_STATE_S3) | |
e5747e3a | 607 | opregion_target_state = PCI_D1; |
95fa2eee | 608 | #endif |
e5747e3a JB |
609 | intel_opregion_notify_adapter(dev, opregion_target_state); |
610 | ||
156c7ca0 | 611 | intel_uncore_forcewake_reset(dev, false); |
44834a67 | 612 | intel_opregion_fini(dev); |
8ee1c3db | 613 | |
82e3b8c1 | 614 | intel_fbdev_set_suspend(dev, FBINFO_STATE_SUSPENDED, true); |
3fa016a0 | 615 | |
62d5d69b MK |
616 | dev_priv->suspend_count++; |
617 | ||
85e90679 KCA |
618 | intel_display_set_init_power(dev_priv, false); |
619 | ||
61caf87c | 620 | return 0; |
84b79f8d RW |
621 | } |
622 | ||
6a9ee8af | 623 | int i915_suspend(struct drm_device *dev, pm_message_t state) |
84b79f8d RW |
624 | { |
625 | int error; | |
626 | ||
627 | if (!dev || !dev->dev_private) { | |
628 | DRM_ERROR("dev: %p\n", dev); | |
629 | DRM_ERROR("DRM not initialized, aborting suspend.\n"); | |
630 | return -ENODEV; | |
631 | } | |
632 | ||
633 | if (state.event == PM_EVENT_PRETHAW) | |
634 | return 0; | |
635 | ||
5bcf719b DA |
636 | |
637 | if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) | |
638 | return 0; | |
6eecba33 | 639 | |
84b79f8d RW |
640 | error = i915_drm_freeze(dev); |
641 | if (error) | |
642 | return error; | |
643 | ||
b932ccb5 DA |
644 | if (state.event == PM_EVENT_SUSPEND) { |
645 | /* Shut down the device */ | |
646 | pci_disable_device(dev->pdev); | |
647 | pci_set_power_state(dev->pdev, PCI_D3hot); | |
648 | } | |
ba8bbcf6 JB |
649 | |
650 | return 0; | |
651 | } | |
652 | ||
76c4b250 | 653 | static int i915_drm_thaw_early(struct drm_device *dev) |
ba8bbcf6 | 654 | { |
5669fcac | 655 | struct drm_i915_private *dev_priv = dev->dev_private; |
016970be | 656 | int ret; |
8ee1c3db | 657 | |
016970be SK |
658 | ret = intel_resume_prepare(dev_priv, false); |
659 | if (ret) | |
660 | DRM_ERROR("Resume prepare failed: %d,Continuing resume\n", ret); | |
8abdc179 | 661 | |
10018603 | 662 | intel_uncore_early_sanitize(dev, true); |
9d49c0ef | 663 | intel_uncore_sanitize(dev); |
76c4b250 ID |
664 | intel_power_domains_init_hw(dev_priv); |
665 | ||
016970be | 666 | return ret; |
76c4b250 ID |
667 | } |
668 | ||
669 | static int __i915_drm_thaw(struct drm_device *dev, bool restore_gtt_mappings) | |
670 | { | |
671 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9d49c0ef PZ |
672 | |
673 | if (drm_core_check_feature(dev, DRIVER_MODESET) && | |
674 | restore_gtt_mappings) { | |
675 | mutex_lock(&dev->struct_mutex); | |
676 | i915_gem_restore_gtt_mappings(dev); | |
677 | mutex_unlock(&dev->struct_mutex); | |
678 | } | |
679 | ||
61caf87c | 680 | i915_restore_state(dev); |
44834a67 | 681 | intel_opregion_setup(dev); |
61caf87c | 682 | |
5669fcac JB |
683 | /* KMS EnterVT equivalent */ |
684 | if (drm_core_check_feature(dev, DRIVER_MODESET)) { | |
dde86e2d | 685 | intel_init_pch_refclk(dev); |
754970ee | 686 | drm_mode_config_reset(dev); |
1833b134 | 687 | |
5669fcac | 688 | mutex_lock(&dev->struct_mutex); |
074c6ada CW |
689 | if (i915_gem_init_hw(dev)) { |
690 | DRM_ERROR("failed to re-initialize GPU, declaring wedged!\n"); | |
691 | atomic_set_mask(I915_WEDGED, &dev_priv->gpu_error.reset_counter); | |
692 | } | |
5669fcac | 693 | mutex_unlock(&dev->struct_mutex); |
226485e9 | 694 | |
e11aa362 | 695 | intel_runtime_pm_restore_interrupts(dev); |
15239099 | 696 | |
1833b134 | 697 | intel_modeset_init_hw(dev); |
24576d23 | 698 | |
0e32b39c DA |
699 | { |
700 | unsigned long irqflags; | |
701 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); | |
702 | if (dev_priv->display.hpd_irq_setup) | |
703 | dev_priv->display.hpd_irq_setup(dev); | |
704 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); | |
705 | } | |
706 | ||
707 | intel_dp_mst_resume(dev); | |
24576d23 JB |
708 | drm_modeset_lock_all(dev); |
709 | intel_modeset_setup_hw_state(dev, true); | |
710 | drm_modeset_unlock_all(dev); | |
15239099 DV |
711 | |
712 | /* | |
713 | * ... but also need to make sure that hotplug processing | |
714 | * doesn't cause havoc. Like in the driver load code we don't | |
715 | * bother with the tiny race here where we might loose hotplug | |
716 | * notifications. | |
717 | * */ | |
20afbda2 | 718 | intel_hpd_init(dev); |
bb60b969 | 719 | /* Config may have changed between suspend and resume */ |
1ff74cf1 | 720 | drm_helper_hpd_irq_event(dev); |
d5bb081b | 721 | } |
1daed3fb | 722 | |
44834a67 CW |
723 | intel_opregion_init(dev); |
724 | ||
82e3b8c1 | 725 | intel_fbdev_set_suspend(dev, FBINFO_STATE_RUNNING, false); |
073f34d9 | 726 | |
b8efb17b ZR |
727 | mutex_lock(&dev_priv->modeset_restore_lock); |
728 | dev_priv->modeset_restore = MODESET_DONE; | |
729 | mutex_unlock(&dev_priv->modeset_restore_lock); | |
8a187455 | 730 | |
e5747e3a JB |
731 | intel_opregion_notify_adapter(dev, PCI_D0); |
732 | ||
074c6ada | 733 | return 0; |
84b79f8d RW |
734 | } |
735 | ||
1abd02e2 JB |
736 | static int i915_drm_thaw(struct drm_device *dev) |
737 | { | |
7f16e5c1 | 738 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
828c7908 | 739 | i915_check_and_clear_faults(dev); |
1abd02e2 | 740 | |
9d49c0ef | 741 | return __i915_drm_thaw(dev, true); |
84b79f8d RW |
742 | } |
743 | ||
76c4b250 | 744 | static int i915_resume_early(struct drm_device *dev) |
84b79f8d | 745 | { |
5bcf719b DA |
746 | if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) |
747 | return 0; | |
748 | ||
76c4b250 ID |
749 | /* |
750 | * We have a resume ordering issue with the snd-hda driver also | |
751 | * requiring our device to be power up. Due to the lack of a | |
752 | * parent/child relationship we currently solve this with an early | |
753 | * resume hook. | |
754 | * | |
755 | * FIXME: This should be solved with a special hdmi sink device or | |
756 | * similar so that power domains can be employed. | |
757 | */ | |
84b79f8d RW |
758 | if (pci_enable_device(dev->pdev)) |
759 | return -EIO; | |
760 | ||
761 | pci_set_master(dev->pdev); | |
762 | ||
76c4b250 ID |
763 | return i915_drm_thaw_early(dev); |
764 | } | |
765 | ||
766 | int i915_resume(struct drm_device *dev) | |
767 | { | |
768 | struct drm_i915_private *dev_priv = dev->dev_private; | |
769 | int ret; | |
770 | ||
1abd02e2 JB |
771 | /* |
772 | * Platforms with opregion should have sane BIOS, older ones (gen3 and | |
9d49c0ef PZ |
773 | * earlier) need to restore the GTT mappings since the BIOS might clear |
774 | * all our scratch PTEs. | |
1abd02e2 | 775 | */ |
9d49c0ef | 776 | ret = __i915_drm_thaw(dev, !dev_priv->opregion.header); |
6eecba33 CW |
777 | if (ret) |
778 | return ret; | |
779 | ||
780 | drm_kms_helper_poll_enable(dev); | |
781 | return 0; | |
ba8bbcf6 JB |
782 | } |
783 | ||
76c4b250 ID |
784 | static int i915_resume_legacy(struct drm_device *dev) |
785 | { | |
786 | i915_resume_early(dev); | |
787 | i915_resume(dev); | |
788 | ||
789 | return 0; | |
790 | } | |
791 | ||
11ed50ec | 792 | /** |
f3953dcb | 793 | * i915_reset - reset chip after a hang |
11ed50ec | 794 | * @dev: drm device to reset |
11ed50ec BG |
795 | * |
796 | * Reset the chip. Useful if a hang is detected. Returns zero on successful | |
797 | * reset or otherwise an error code. | |
798 | * | |
799 | * Procedure is fairly simple: | |
800 | * - reset the chip using the reset reg | |
801 | * - re-init context state | |
802 | * - re-init hardware status page | |
803 | * - re-init ring buffer | |
804 | * - re-init interrupt state | |
805 | * - re-init display | |
806 | */ | |
d4b8bb2a | 807 | int i915_reset(struct drm_device *dev) |
11ed50ec | 808 | { |
50227e1c | 809 | struct drm_i915_private *dev_priv = dev->dev_private; |
2e7c8ee7 | 810 | bool simulated; |
0573ed4a | 811 | int ret; |
11ed50ec | 812 | |
d330a953 | 813 | if (!i915.reset) |
d78cb50b CW |
814 | return 0; |
815 | ||
d54a02c0 | 816 | mutex_lock(&dev->struct_mutex); |
11ed50ec | 817 | |
069efc1d | 818 | i915_gem_reset(dev); |
77f01230 | 819 | |
2e7c8ee7 CW |
820 | simulated = dev_priv->gpu_error.stop_rings != 0; |
821 | ||
be62acb4 MK |
822 | ret = intel_gpu_reset(dev); |
823 | ||
824 | /* Also reset the gpu hangman. */ | |
825 | if (simulated) { | |
826 | DRM_INFO("Simulated gpu hang, resetting stop_rings\n"); | |
827 | dev_priv->gpu_error.stop_rings = 0; | |
828 | if (ret == -ENODEV) { | |
f2d91a2c DV |
829 | DRM_INFO("Reset not implemented, but ignoring " |
830 | "error for simulated gpu hangs\n"); | |
be62acb4 MK |
831 | ret = 0; |
832 | } | |
2e7c8ee7 | 833 | } |
be62acb4 | 834 | |
0573ed4a | 835 | if (ret) { |
f2d91a2c | 836 | DRM_ERROR("Failed to reset chip: %i\n", ret); |
f953c935 | 837 | mutex_unlock(&dev->struct_mutex); |
f803aa55 | 838 | return ret; |
11ed50ec BG |
839 | } |
840 | ||
841 | /* Ok, now get things going again... */ | |
842 | ||
843 | /* | |
844 | * Everything depends on having the GTT running, so we need to start | |
845 | * there. Fortunately we don't need to do this unless we reset the | |
846 | * chip at a PCI level. | |
847 | * | |
848 | * Next we need to restore the context, but we don't use those | |
849 | * yet either... | |
850 | * | |
851 | * Ring buffer needs to be re-initialized in the KMS case, or if X | |
852 | * was running at the time of the reset (i.e. we weren't VT | |
853 | * switched away). | |
854 | */ | |
855 | if (drm_core_check_feature(dev, DRIVER_MODESET) || | |
db1b76ca | 856 | !dev_priv->ums.mm_suspended) { |
db1b76ca | 857 | dev_priv->ums.mm_suspended = 0; |
75a6898f | 858 | |
6689c167 MA |
859 | /* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset */ |
860 | dev_priv->gpu_error.reload_in_reset = true; | |
861 | ||
3d57e5bd | 862 | ret = i915_gem_init_hw(dev); |
6689c167 MA |
863 | |
864 | dev_priv->gpu_error.reload_in_reset = false; | |
865 | ||
8e88a2bd | 866 | mutex_unlock(&dev->struct_mutex); |
3d57e5bd BW |
867 | if (ret) { |
868 | DRM_ERROR("Failed hw init on reset %d\n", ret); | |
869 | return ret; | |
870 | } | |
f817586c | 871 | |
e090c53b | 872 | /* |
78ad455f DV |
873 | * FIXME: This races pretty badly against concurrent holders of |
874 | * ring interrupts. This is possible since we've started to drop | |
875 | * dev->struct_mutex in select places when waiting for the gpu. | |
e090c53b | 876 | */ |
dd0a1aa1 | 877 | |
78ad455f DV |
878 | /* |
879 | * rps/rc6 re-init is necessary to restore state lost after the | |
880 | * reset and the re-install of gt irqs. Skip for ironlake per | |
dd0a1aa1 | 881 | * previous concerns that it doesn't respond well to some forms |
78ad455f DV |
882 | * of re-init after reset. |
883 | */ | |
dc1d0136 | 884 | if (INTEL_INFO(dev)->gen > 5) |
c6df39b5 | 885 | intel_reset_gt_powersave(dev); |
dd0a1aa1 | 886 | |
20afbda2 | 887 | intel_hpd_init(dev); |
bcbc324a DV |
888 | } else { |
889 | mutex_unlock(&dev->struct_mutex); | |
11ed50ec BG |
890 | } |
891 | ||
11ed50ec BG |
892 | return 0; |
893 | } | |
894 | ||
56550d94 | 895 | static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
112b715e | 896 | { |
01a06850 DV |
897 | struct intel_device_info *intel_info = |
898 | (struct intel_device_info *) ent->driver_data; | |
899 | ||
d330a953 | 900 | if (IS_PRELIMINARY_HW(intel_info) && !i915.preliminary_hw_support) { |
b833d685 BW |
901 | DRM_INFO("This hardware requires preliminary hardware support.\n" |
902 | "See CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT, and/or modparam preliminary_hw_support\n"); | |
903 | return -ENODEV; | |
904 | } | |
905 | ||
5fe49d86 CW |
906 | /* Only bind to function 0 of the device. Early generations |
907 | * used function 1 as a placeholder for multi-head. This causes | |
908 | * us confusion instead, especially on the systems where both | |
909 | * functions have the same PCI-ID! | |
910 | */ | |
911 | if (PCI_FUNC(pdev->devfn)) | |
912 | return -ENODEV; | |
913 | ||
24986ee0 | 914 | driver.driver_features &= ~(DRIVER_USE_AGP); |
01a06850 | 915 | |
dcdb1674 | 916 | return drm_get_pci_dev(pdev, ent, &driver); |
112b715e KH |
917 | } |
918 | ||
919 | static void | |
920 | i915_pci_remove(struct pci_dev *pdev) | |
921 | { | |
922 | struct drm_device *dev = pci_get_drvdata(pdev); | |
923 | ||
924 | drm_put_dev(dev); | |
925 | } | |
926 | ||
84b79f8d | 927 | static int i915_pm_suspend(struct device *dev) |
112b715e | 928 | { |
84b79f8d RW |
929 | struct pci_dev *pdev = to_pci_dev(dev); |
930 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
112b715e | 931 | |
84b79f8d RW |
932 | if (!drm_dev || !drm_dev->dev_private) { |
933 | dev_err(dev, "DRM not initialized, aborting suspend.\n"); | |
934 | return -ENODEV; | |
935 | } | |
112b715e | 936 | |
5bcf719b DA |
937 | if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF) |
938 | return 0; | |
939 | ||
76c4b250 ID |
940 | return i915_drm_freeze(drm_dev); |
941 | } | |
942 | ||
943 | static int i915_pm_suspend_late(struct device *dev) | |
944 | { | |
945 | struct pci_dev *pdev = to_pci_dev(dev); | |
946 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
8abdc179 | 947 | struct drm_i915_private *dev_priv = drm_dev->dev_private; |
016970be | 948 | int ret; |
76c4b250 ID |
949 | |
950 | /* | |
951 | * We have a suspedn ordering issue with the snd-hda driver also | |
952 | * requiring our device to be power up. Due to the lack of a | |
953 | * parent/child relationship we currently solve this with an late | |
954 | * suspend hook. | |
955 | * | |
956 | * FIXME: This should be solved with a special hdmi sink device or | |
957 | * similar so that power domains can be employed. | |
958 | */ | |
959 | if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF) | |
960 | return 0; | |
112b715e | 961 | |
016970be | 962 | ret = intel_suspend_complete(dev_priv); |
8abdc179 | 963 | |
016970be SK |
964 | if (ret) |
965 | DRM_ERROR("Suspend complete failed: %d\n", ret); | |
966 | else { | |
967 | pci_disable_device(pdev); | |
968 | pci_set_power_state(pdev, PCI_D3hot); | |
969 | } | |
cbda12d7 | 970 | |
016970be | 971 | return ret; |
cbda12d7 ZW |
972 | } |
973 | ||
76c4b250 ID |
974 | static int i915_pm_resume_early(struct device *dev) |
975 | { | |
976 | struct pci_dev *pdev = to_pci_dev(dev); | |
977 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
978 | ||
979 | return i915_resume_early(drm_dev); | |
980 | } | |
981 | ||
84b79f8d | 982 | static int i915_pm_resume(struct device *dev) |
cbda12d7 | 983 | { |
84b79f8d RW |
984 | struct pci_dev *pdev = to_pci_dev(dev); |
985 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
986 | ||
987 | return i915_resume(drm_dev); | |
cbda12d7 ZW |
988 | } |
989 | ||
84b79f8d | 990 | static int i915_pm_freeze(struct device *dev) |
cbda12d7 | 991 | { |
84b79f8d RW |
992 | struct pci_dev *pdev = to_pci_dev(dev); |
993 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
994 | ||
995 | if (!drm_dev || !drm_dev->dev_private) { | |
996 | dev_err(dev, "DRM not initialized, aborting suspend.\n"); | |
997 | return -ENODEV; | |
998 | } | |
999 | ||
1000 | return i915_drm_freeze(drm_dev); | |
cbda12d7 ZW |
1001 | } |
1002 | ||
76c4b250 ID |
1003 | static int i915_pm_thaw_early(struct device *dev) |
1004 | { | |
1005 | struct pci_dev *pdev = to_pci_dev(dev); | |
1006 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
1007 | ||
1008 | return i915_drm_thaw_early(drm_dev); | |
1009 | } | |
1010 | ||
84b79f8d | 1011 | static int i915_pm_thaw(struct device *dev) |
cbda12d7 | 1012 | { |
84b79f8d RW |
1013 | struct pci_dev *pdev = to_pci_dev(dev); |
1014 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
1015 | ||
1016 | return i915_drm_thaw(drm_dev); | |
cbda12d7 ZW |
1017 | } |
1018 | ||
84b79f8d | 1019 | static int i915_pm_poweroff(struct device *dev) |
cbda12d7 | 1020 | { |
84b79f8d RW |
1021 | struct pci_dev *pdev = to_pci_dev(dev); |
1022 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
84b79f8d | 1023 | |
61caf87c | 1024 | return i915_drm_freeze(drm_dev); |
cbda12d7 ZW |
1025 | } |
1026 | ||
ebc32824 | 1027 | static int hsw_suspend_complete(struct drm_i915_private *dev_priv) |
97bea207 | 1028 | { |
414de7a0 | 1029 | hsw_enable_pc8(dev_priv); |
0ab9cfeb ID |
1030 | |
1031 | return 0; | |
97bea207 PZ |
1032 | } |
1033 | ||
016970be SK |
1034 | static int snb_resume_prepare(struct drm_i915_private *dev_priv, |
1035 | bool rpm_resume) | |
9a952a0d PZ |
1036 | { |
1037 | struct drm_device *dev = dev_priv->dev; | |
1038 | ||
016970be SK |
1039 | if (rpm_resume) |
1040 | intel_init_pch_refclk(dev); | |
0ab9cfeb ID |
1041 | |
1042 | return 0; | |
9a952a0d PZ |
1043 | } |
1044 | ||
016970be SK |
1045 | static int hsw_resume_prepare(struct drm_i915_private *dev_priv, |
1046 | bool rpm_resume) | |
97bea207 | 1047 | { |
414de7a0 | 1048 | hsw_disable_pc8(dev_priv); |
0ab9cfeb ID |
1049 | |
1050 | return 0; | |
97bea207 PZ |
1051 | } |
1052 | ||
ddeea5b0 ID |
1053 | /* |
1054 | * Save all Gunit registers that may be lost after a D3 and a subsequent | |
1055 | * S0i[R123] transition. The list of registers needing a save/restore is | |
1056 | * defined in the VLV2_S0IXRegs document. This documents marks all Gunit | |
1057 | * registers in the following way: | |
1058 | * - Driver: saved/restored by the driver | |
1059 | * - Punit : saved/restored by the Punit firmware | |
1060 | * - No, w/o marking: no need to save/restore, since the register is R/O or | |
1061 | * used internally by the HW in a way that doesn't depend | |
1062 | * keeping the content across a suspend/resume. | |
1063 | * - Debug : used for debugging | |
1064 | * | |
1065 | * We save/restore all registers marked with 'Driver', with the following | |
1066 | * exceptions: | |
1067 | * - Registers out of use, including also registers marked with 'Debug'. | |
1068 | * These have no effect on the driver's operation, so we don't save/restore | |
1069 | * them to reduce the overhead. | |
1070 | * - Registers that are fully setup by an initialization function called from | |
1071 | * the resume path. For example many clock gating and RPS/RC6 registers. | |
1072 | * - Registers that provide the right functionality with their reset defaults. | |
1073 | * | |
1074 | * TODO: Except for registers that based on the above 3 criteria can be safely | |
1075 | * ignored, we save/restore all others, practically treating the HW context as | |
1076 | * a black-box for the driver. Further investigation is needed to reduce the | |
1077 | * saved/restored registers even further, by following the same 3 criteria. | |
1078 | */ | |
1079 | static void vlv_save_gunit_s0ix_state(struct drm_i915_private *dev_priv) | |
1080 | { | |
1081 | struct vlv_s0ix_state *s = &dev_priv->vlv_s0ix_state; | |
1082 | int i; | |
1083 | ||
1084 | /* GAM 0x4000-0x4770 */ | |
1085 | s->wr_watermark = I915_READ(GEN7_WR_WATERMARK); | |
1086 | s->gfx_prio_ctrl = I915_READ(GEN7_GFX_PRIO_CTRL); | |
1087 | s->arb_mode = I915_READ(ARB_MODE); | |
1088 | s->gfx_pend_tlb0 = I915_READ(GEN7_GFX_PEND_TLB0); | |
1089 | s->gfx_pend_tlb1 = I915_READ(GEN7_GFX_PEND_TLB1); | |
1090 | ||
1091 | for (i = 0; i < ARRAY_SIZE(s->lra_limits); i++) | |
1092 | s->lra_limits[i] = I915_READ(GEN7_LRA_LIMITS_BASE + i * 4); | |
1093 | ||
1094 | s->media_max_req_count = I915_READ(GEN7_MEDIA_MAX_REQ_COUNT); | |
1095 | s->gfx_max_req_count = I915_READ(GEN7_MEDIA_MAX_REQ_COUNT); | |
1096 | ||
1097 | s->render_hwsp = I915_READ(RENDER_HWS_PGA_GEN7); | |
1098 | s->ecochk = I915_READ(GAM_ECOCHK); | |
1099 | s->bsd_hwsp = I915_READ(BSD_HWS_PGA_GEN7); | |
1100 | s->blt_hwsp = I915_READ(BLT_HWS_PGA_GEN7); | |
1101 | ||
1102 | s->tlb_rd_addr = I915_READ(GEN7_TLB_RD_ADDR); | |
1103 | ||
1104 | /* MBC 0x9024-0x91D0, 0x8500 */ | |
1105 | s->g3dctl = I915_READ(VLV_G3DCTL); | |
1106 | s->gsckgctl = I915_READ(VLV_GSCKGCTL); | |
1107 | s->mbctl = I915_READ(GEN6_MBCTL); | |
1108 | ||
1109 | /* GCP 0x9400-0x9424, 0x8100-0x810C */ | |
1110 | s->ucgctl1 = I915_READ(GEN6_UCGCTL1); | |
1111 | s->ucgctl3 = I915_READ(GEN6_UCGCTL3); | |
1112 | s->rcgctl1 = I915_READ(GEN6_RCGCTL1); | |
1113 | s->rcgctl2 = I915_READ(GEN6_RCGCTL2); | |
1114 | s->rstctl = I915_READ(GEN6_RSTCTL); | |
1115 | s->misccpctl = I915_READ(GEN7_MISCCPCTL); | |
1116 | ||
1117 | /* GPM 0xA000-0xAA84, 0x8000-0x80FC */ | |
1118 | s->gfxpause = I915_READ(GEN6_GFXPAUSE); | |
1119 | s->rpdeuhwtc = I915_READ(GEN6_RPDEUHWTC); | |
1120 | s->rpdeuc = I915_READ(GEN6_RPDEUC); | |
1121 | s->ecobus = I915_READ(ECOBUS); | |
1122 | s->pwrdwnupctl = I915_READ(VLV_PWRDWNUPCTL); | |
1123 | s->rp_down_timeout = I915_READ(GEN6_RP_DOWN_TIMEOUT); | |
1124 | s->rp_deucsw = I915_READ(GEN6_RPDEUCSW); | |
1125 | s->rcubmabdtmr = I915_READ(GEN6_RCUBMABDTMR); | |
1126 | s->rcedata = I915_READ(VLV_RCEDATA); | |
1127 | s->spare2gh = I915_READ(VLV_SPAREG2H); | |
1128 | ||
1129 | /* Display CZ domain, 0x4400C-0x4402C, 0x4F000-0x4F11F */ | |
1130 | s->gt_imr = I915_READ(GTIMR); | |
1131 | s->gt_ier = I915_READ(GTIER); | |
1132 | s->pm_imr = I915_READ(GEN6_PMIMR); | |
1133 | s->pm_ier = I915_READ(GEN6_PMIER); | |
1134 | ||
1135 | for (i = 0; i < ARRAY_SIZE(s->gt_scratch); i++) | |
1136 | s->gt_scratch[i] = I915_READ(GEN7_GT_SCRATCH_BASE + i * 4); | |
1137 | ||
1138 | /* GT SA CZ domain, 0x100000-0x138124 */ | |
1139 | s->tilectl = I915_READ(TILECTL); | |
1140 | s->gt_fifoctl = I915_READ(GTFIFOCTL); | |
1141 | s->gtlc_wake_ctrl = I915_READ(VLV_GTLC_WAKE_CTRL); | |
1142 | s->gtlc_survive = I915_READ(VLV_GTLC_SURVIVABILITY_REG); | |
1143 | s->pmwgicz = I915_READ(VLV_PMWGICZ); | |
1144 | ||
1145 | /* Gunit-Display CZ domain, 0x182028-0x1821CF */ | |
1146 | s->gu_ctl0 = I915_READ(VLV_GU_CTL0); | |
1147 | s->gu_ctl1 = I915_READ(VLV_GU_CTL1); | |
1148 | s->clock_gate_dis2 = I915_READ(VLV_GUNIT_CLOCK_GATE2); | |
1149 | ||
1150 | /* | |
1151 | * Not saving any of: | |
1152 | * DFT, 0x9800-0x9EC0 | |
1153 | * SARB, 0xB000-0xB1FC | |
1154 | * GAC, 0x5208-0x524C, 0x14000-0x14C000 | |
1155 | * PCI CFG | |
1156 | */ | |
1157 | } | |
1158 | ||
1159 | static void vlv_restore_gunit_s0ix_state(struct drm_i915_private *dev_priv) | |
1160 | { | |
1161 | struct vlv_s0ix_state *s = &dev_priv->vlv_s0ix_state; | |
1162 | u32 val; | |
1163 | int i; | |
1164 | ||
1165 | /* GAM 0x4000-0x4770 */ | |
1166 | I915_WRITE(GEN7_WR_WATERMARK, s->wr_watermark); | |
1167 | I915_WRITE(GEN7_GFX_PRIO_CTRL, s->gfx_prio_ctrl); | |
1168 | I915_WRITE(ARB_MODE, s->arb_mode | (0xffff << 16)); | |
1169 | I915_WRITE(GEN7_GFX_PEND_TLB0, s->gfx_pend_tlb0); | |
1170 | I915_WRITE(GEN7_GFX_PEND_TLB1, s->gfx_pend_tlb1); | |
1171 | ||
1172 | for (i = 0; i < ARRAY_SIZE(s->lra_limits); i++) | |
1173 | I915_WRITE(GEN7_LRA_LIMITS_BASE + i * 4, s->lra_limits[i]); | |
1174 | ||
1175 | I915_WRITE(GEN7_MEDIA_MAX_REQ_COUNT, s->media_max_req_count); | |
1176 | I915_WRITE(GEN7_MEDIA_MAX_REQ_COUNT, s->gfx_max_req_count); | |
1177 | ||
1178 | I915_WRITE(RENDER_HWS_PGA_GEN7, s->render_hwsp); | |
1179 | I915_WRITE(GAM_ECOCHK, s->ecochk); | |
1180 | I915_WRITE(BSD_HWS_PGA_GEN7, s->bsd_hwsp); | |
1181 | I915_WRITE(BLT_HWS_PGA_GEN7, s->blt_hwsp); | |
1182 | ||
1183 | I915_WRITE(GEN7_TLB_RD_ADDR, s->tlb_rd_addr); | |
1184 | ||
1185 | /* MBC 0x9024-0x91D0, 0x8500 */ | |
1186 | I915_WRITE(VLV_G3DCTL, s->g3dctl); | |
1187 | I915_WRITE(VLV_GSCKGCTL, s->gsckgctl); | |
1188 | I915_WRITE(GEN6_MBCTL, s->mbctl); | |
1189 | ||
1190 | /* GCP 0x9400-0x9424, 0x8100-0x810C */ | |
1191 | I915_WRITE(GEN6_UCGCTL1, s->ucgctl1); | |
1192 | I915_WRITE(GEN6_UCGCTL3, s->ucgctl3); | |
1193 | I915_WRITE(GEN6_RCGCTL1, s->rcgctl1); | |
1194 | I915_WRITE(GEN6_RCGCTL2, s->rcgctl2); | |
1195 | I915_WRITE(GEN6_RSTCTL, s->rstctl); | |
1196 | I915_WRITE(GEN7_MISCCPCTL, s->misccpctl); | |
1197 | ||
1198 | /* GPM 0xA000-0xAA84, 0x8000-0x80FC */ | |
1199 | I915_WRITE(GEN6_GFXPAUSE, s->gfxpause); | |
1200 | I915_WRITE(GEN6_RPDEUHWTC, s->rpdeuhwtc); | |
1201 | I915_WRITE(GEN6_RPDEUC, s->rpdeuc); | |
1202 | I915_WRITE(ECOBUS, s->ecobus); | |
1203 | I915_WRITE(VLV_PWRDWNUPCTL, s->pwrdwnupctl); | |
1204 | I915_WRITE(GEN6_RP_DOWN_TIMEOUT,s->rp_down_timeout); | |
1205 | I915_WRITE(GEN6_RPDEUCSW, s->rp_deucsw); | |
1206 | I915_WRITE(GEN6_RCUBMABDTMR, s->rcubmabdtmr); | |
1207 | I915_WRITE(VLV_RCEDATA, s->rcedata); | |
1208 | I915_WRITE(VLV_SPAREG2H, s->spare2gh); | |
1209 | ||
1210 | /* Display CZ domain, 0x4400C-0x4402C, 0x4F000-0x4F11F */ | |
1211 | I915_WRITE(GTIMR, s->gt_imr); | |
1212 | I915_WRITE(GTIER, s->gt_ier); | |
1213 | I915_WRITE(GEN6_PMIMR, s->pm_imr); | |
1214 | I915_WRITE(GEN6_PMIER, s->pm_ier); | |
1215 | ||
1216 | for (i = 0; i < ARRAY_SIZE(s->gt_scratch); i++) | |
1217 | I915_WRITE(GEN7_GT_SCRATCH_BASE + i * 4, s->gt_scratch[i]); | |
1218 | ||
1219 | /* GT SA CZ domain, 0x100000-0x138124 */ | |
1220 | I915_WRITE(TILECTL, s->tilectl); | |
1221 | I915_WRITE(GTFIFOCTL, s->gt_fifoctl); | |
1222 | /* | |
1223 | * Preserve the GT allow wake and GFX force clock bit, they are not | |
1224 | * be restored, as they are used to control the s0ix suspend/resume | |
1225 | * sequence by the caller. | |
1226 | */ | |
1227 | val = I915_READ(VLV_GTLC_WAKE_CTRL); | |
1228 | val &= VLV_GTLC_ALLOWWAKEREQ; | |
1229 | val |= s->gtlc_wake_ctrl & ~VLV_GTLC_ALLOWWAKEREQ; | |
1230 | I915_WRITE(VLV_GTLC_WAKE_CTRL, val); | |
1231 | ||
1232 | val = I915_READ(VLV_GTLC_SURVIVABILITY_REG); | |
1233 | val &= VLV_GFX_CLK_FORCE_ON_BIT; | |
1234 | val |= s->gtlc_survive & ~VLV_GFX_CLK_FORCE_ON_BIT; | |
1235 | I915_WRITE(VLV_GTLC_SURVIVABILITY_REG, val); | |
1236 | ||
1237 | I915_WRITE(VLV_PMWGICZ, s->pmwgicz); | |
1238 | ||
1239 | /* Gunit-Display CZ domain, 0x182028-0x1821CF */ | |
1240 | I915_WRITE(VLV_GU_CTL0, s->gu_ctl0); | |
1241 | I915_WRITE(VLV_GU_CTL1, s->gu_ctl1); | |
1242 | I915_WRITE(VLV_GUNIT_CLOCK_GATE2, s->clock_gate_dis2); | |
1243 | } | |
1244 | ||
650ad970 ID |
1245 | int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool force_on) |
1246 | { | |
1247 | u32 val; | |
1248 | int err; | |
1249 | ||
1250 | val = I915_READ(VLV_GTLC_SURVIVABILITY_REG); | |
1251 | WARN_ON(!!(val & VLV_GFX_CLK_FORCE_ON_BIT) == force_on); | |
1252 | ||
1253 | #define COND (I915_READ(VLV_GTLC_SURVIVABILITY_REG) & VLV_GFX_CLK_STATUS_BIT) | |
1254 | /* Wait for a previous force-off to settle */ | |
1255 | if (force_on) { | |
8d4eee9c | 1256 | err = wait_for(!COND, 20); |
650ad970 ID |
1257 | if (err) { |
1258 | DRM_ERROR("timeout waiting for GFX clock force-off (%08x)\n", | |
1259 | I915_READ(VLV_GTLC_SURVIVABILITY_REG)); | |
1260 | return err; | |
1261 | } | |
1262 | } | |
1263 | ||
1264 | val = I915_READ(VLV_GTLC_SURVIVABILITY_REG); | |
1265 | val &= ~VLV_GFX_CLK_FORCE_ON_BIT; | |
1266 | if (force_on) | |
1267 | val |= VLV_GFX_CLK_FORCE_ON_BIT; | |
1268 | I915_WRITE(VLV_GTLC_SURVIVABILITY_REG, val); | |
1269 | ||
1270 | if (!force_on) | |
1271 | return 0; | |
1272 | ||
8d4eee9c | 1273 | err = wait_for(COND, 20); |
650ad970 ID |
1274 | if (err) |
1275 | DRM_ERROR("timeout waiting for GFX clock force-on (%08x)\n", | |
1276 | I915_READ(VLV_GTLC_SURVIVABILITY_REG)); | |
1277 | ||
1278 | return err; | |
1279 | #undef COND | |
1280 | } | |
1281 | ||
ddeea5b0 ID |
1282 | static int vlv_allow_gt_wake(struct drm_i915_private *dev_priv, bool allow) |
1283 | { | |
1284 | u32 val; | |
1285 | int err = 0; | |
1286 | ||
1287 | val = I915_READ(VLV_GTLC_WAKE_CTRL); | |
1288 | val &= ~VLV_GTLC_ALLOWWAKEREQ; | |
1289 | if (allow) | |
1290 | val |= VLV_GTLC_ALLOWWAKEREQ; | |
1291 | I915_WRITE(VLV_GTLC_WAKE_CTRL, val); | |
1292 | POSTING_READ(VLV_GTLC_WAKE_CTRL); | |
1293 | ||
1294 | #define COND (!!(I915_READ(VLV_GTLC_PW_STATUS) & VLV_GTLC_ALLOWWAKEACK) == \ | |
1295 | allow) | |
1296 | err = wait_for(COND, 1); | |
1297 | if (err) | |
1298 | DRM_ERROR("timeout disabling GT waking\n"); | |
1299 | return err; | |
1300 | #undef COND | |
1301 | } | |
1302 | ||
1303 | static int vlv_wait_for_gt_wells(struct drm_i915_private *dev_priv, | |
1304 | bool wait_for_on) | |
1305 | { | |
1306 | u32 mask; | |
1307 | u32 val; | |
1308 | int err; | |
1309 | ||
1310 | mask = VLV_GTLC_PW_MEDIA_STATUS_MASK | VLV_GTLC_PW_RENDER_STATUS_MASK; | |
1311 | val = wait_for_on ? mask : 0; | |
1312 | #define COND ((I915_READ(VLV_GTLC_PW_STATUS) & mask) == val) | |
1313 | if (COND) | |
1314 | return 0; | |
1315 | ||
1316 | DRM_DEBUG_KMS("waiting for GT wells to go %s (%08x)\n", | |
1317 | wait_for_on ? "on" : "off", | |
1318 | I915_READ(VLV_GTLC_PW_STATUS)); | |
1319 | ||
1320 | /* | |
1321 | * RC6 transitioning can be delayed up to 2 msec (see | |
1322 | * valleyview_enable_rps), use 3 msec for safety. | |
1323 | */ | |
1324 | err = wait_for(COND, 3); | |
1325 | if (err) | |
1326 | DRM_ERROR("timeout waiting for GT wells to go %s\n", | |
1327 | wait_for_on ? "on" : "off"); | |
1328 | ||
1329 | return err; | |
1330 | #undef COND | |
1331 | } | |
1332 | ||
1333 | static void vlv_check_no_gt_access(struct drm_i915_private *dev_priv) | |
1334 | { | |
1335 | if (!(I915_READ(VLV_GTLC_PW_STATUS) & VLV_GTLC_ALLOWWAKEERR)) | |
1336 | return; | |
1337 | ||
1338 | DRM_ERROR("GT register access while GT waking disabled\n"); | |
1339 | I915_WRITE(VLV_GTLC_PW_STATUS, VLV_GTLC_ALLOWWAKEERR); | |
1340 | } | |
1341 | ||
ebc32824 | 1342 | static int vlv_suspend_complete(struct drm_i915_private *dev_priv) |
ddeea5b0 ID |
1343 | { |
1344 | u32 mask; | |
1345 | int err; | |
1346 | ||
1347 | /* | |
1348 | * Bspec defines the following GT well on flags as debug only, so | |
1349 | * don't treat them as hard failures. | |
1350 | */ | |
1351 | (void)vlv_wait_for_gt_wells(dev_priv, false); | |
1352 | ||
1353 | mask = VLV_GTLC_RENDER_CTX_EXISTS | VLV_GTLC_MEDIA_CTX_EXISTS; | |
1354 | WARN_ON((I915_READ(VLV_GTLC_WAKE_CTRL) & mask) != mask); | |
1355 | ||
1356 | vlv_check_no_gt_access(dev_priv); | |
1357 | ||
1358 | err = vlv_force_gfx_clock(dev_priv, true); | |
1359 | if (err) | |
1360 | goto err1; | |
1361 | ||
1362 | err = vlv_allow_gt_wake(dev_priv, false); | |
1363 | if (err) | |
1364 | goto err2; | |
1365 | vlv_save_gunit_s0ix_state(dev_priv); | |
1366 | ||
1367 | err = vlv_force_gfx_clock(dev_priv, false); | |
1368 | if (err) | |
1369 | goto err2; | |
1370 | ||
1371 | return 0; | |
1372 | ||
1373 | err2: | |
1374 | /* For safety always re-enable waking and disable gfx clock forcing */ | |
1375 | vlv_allow_gt_wake(dev_priv, true); | |
1376 | err1: | |
1377 | vlv_force_gfx_clock(dev_priv, false); | |
1378 | ||
1379 | return err; | |
1380 | } | |
1381 | ||
016970be SK |
1382 | static int vlv_resume_prepare(struct drm_i915_private *dev_priv, |
1383 | bool rpm_resume) | |
ddeea5b0 ID |
1384 | { |
1385 | struct drm_device *dev = dev_priv->dev; | |
1386 | int err; | |
1387 | int ret; | |
1388 | ||
1389 | /* | |
1390 | * If any of the steps fail just try to continue, that's the best we | |
1391 | * can do at this point. Return the first error code (which will also | |
1392 | * leave RPM permanently disabled). | |
1393 | */ | |
1394 | ret = vlv_force_gfx_clock(dev_priv, true); | |
1395 | ||
1396 | vlv_restore_gunit_s0ix_state(dev_priv); | |
1397 | ||
1398 | err = vlv_allow_gt_wake(dev_priv, true); | |
1399 | if (!ret) | |
1400 | ret = err; | |
1401 | ||
1402 | err = vlv_force_gfx_clock(dev_priv, false); | |
1403 | if (!ret) | |
1404 | ret = err; | |
1405 | ||
1406 | vlv_check_no_gt_access(dev_priv); | |
1407 | ||
016970be SK |
1408 | if (rpm_resume) { |
1409 | intel_init_clock_gating(dev); | |
1410 | i915_gem_restore_fences(dev); | |
1411 | } | |
ddeea5b0 ID |
1412 | |
1413 | return ret; | |
1414 | } | |
1415 | ||
97bea207 | 1416 | static int intel_runtime_suspend(struct device *device) |
8a187455 PZ |
1417 | { |
1418 | struct pci_dev *pdev = to_pci_dev(device); | |
1419 | struct drm_device *dev = pci_get_drvdata(pdev); | |
1420 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0ab9cfeb | 1421 | int ret; |
8a187455 | 1422 | |
aeab0b5a | 1423 | if (WARN_ON_ONCE(!(dev_priv->rps.enabled && intel_enable_rc6(dev)))) |
c6df39b5 ID |
1424 | return -ENODEV; |
1425 | ||
604effb7 ID |
1426 | if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev))) |
1427 | return -ENODEV; | |
1428 | ||
e998c40f | 1429 | assert_force_wake_inactive(dev_priv); |
8a187455 PZ |
1430 | |
1431 | DRM_DEBUG_KMS("Suspending device\n"); | |
1432 | ||
d6102977 ID |
1433 | /* |
1434 | * We could deadlock here in case another thread holding struct_mutex | |
1435 | * calls RPM suspend concurrently, since the RPM suspend will wait | |
1436 | * first for this RPM suspend to finish. In this case the concurrent | |
1437 | * RPM resume will be followed by its RPM suspend counterpart. Still | |
1438 | * for consistency return -EAGAIN, which will reschedule this suspend. | |
1439 | */ | |
1440 | if (!mutex_trylock(&dev->struct_mutex)) { | |
1441 | DRM_DEBUG_KMS("device lock contention, deffering suspend\n"); | |
1442 | /* | |
1443 | * Bump the expiration timestamp, otherwise the suspend won't | |
1444 | * be rescheduled. | |
1445 | */ | |
1446 | pm_runtime_mark_last_busy(device); | |
1447 | ||
1448 | return -EAGAIN; | |
1449 | } | |
1450 | /* | |
1451 | * We are safe here against re-faults, since the fault handler takes | |
1452 | * an RPM reference. | |
1453 | */ | |
1454 | i915_gem_release_all_mmaps(dev_priv); | |
1455 | mutex_unlock(&dev->struct_mutex); | |
1456 | ||
9486db61 ID |
1457 | /* |
1458 | * rps.work can't be rearmed here, since we get here only after making | |
1459 | * sure the GPU is idle and the RPS freq is set to the minimum. See | |
1460 | * intel_mark_idle(). | |
1461 | */ | |
1462 | cancel_work_sync(&dev_priv->rps.work); | |
b5478bcd ID |
1463 | intel_runtime_pm_disable_interrupts(dev); |
1464 | ||
ebc32824 | 1465 | ret = intel_suspend_complete(dev_priv); |
0ab9cfeb ID |
1466 | if (ret) { |
1467 | DRM_ERROR("Runtime suspend failed, disabling it (%d)\n", ret); | |
1468 | intel_runtime_pm_restore_interrupts(dev); | |
1469 | ||
1470 | return ret; | |
1471 | } | |
a8a8bd54 | 1472 | |
16a3d6ef | 1473 | del_timer_sync(&dev_priv->gpu_error.hangcheck_timer); |
8a187455 | 1474 | dev_priv->pm.suspended = true; |
1fb2362b KCA |
1475 | |
1476 | /* | |
c8a0bd42 PZ |
1477 | * FIXME: We really should find a document that references the arguments |
1478 | * used below! | |
1fb2362b | 1479 | */ |
c8a0bd42 PZ |
1480 | if (IS_HASWELL(dev)) { |
1481 | /* | |
1482 | * current versions of firmware which depend on this opregion | |
1483 | * notification have repurposed the D1 definition to mean | |
1484 | * "runtime suspended" vs. what you would normally expect (D3) | |
1485 | * to distinguish it from notifications that might be sent via | |
1486 | * the suspend path. | |
1487 | */ | |
1488 | intel_opregion_notify_adapter(dev, PCI_D1); | |
1489 | } else { | |
1490 | /* | |
1491 | * On Broadwell, if we use PCI_D1 the PCH DDI ports will stop | |
1492 | * being detected, and the call we do at intel_runtime_resume() | |
1493 | * won't be able to restore them. Since PCI_D3hot matches the | |
1494 | * actual specification and appears to be working, use it. Let's | |
1495 | * assume the other non-Haswell platforms will stay the same as | |
1496 | * Broadwell. | |
1497 | */ | |
1498 | intel_opregion_notify_adapter(dev, PCI_D3hot); | |
1499 | } | |
8a187455 | 1500 | |
a8a8bd54 | 1501 | DRM_DEBUG_KMS("Device suspended\n"); |
8a187455 PZ |
1502 | return 0; |
1503 | } | |
1504 | ||
97bea207 | 1505 | static int intel_runtime_resume(struct device *device) |
8a187455 PZ |
1506 | { |
1507 | struct pci_dev *pdev = to_pci_dev(device); | |
1508 | struct drm_device *dev = pci_get_drvdata(pdev); | |
1509 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0ab9cfeb | 1510 | int ret; |
8a187455 | 1511 | |
604effb7 ID |
1512 | if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev))) |
1513 | return -ENODEV; | |
8a187455 PZ |
1514 | |
1515 | DRM_DEBUG_KMS("Resuming device\n"); | |
1516 | ||
cd2e9e90 | 1517 | intel_opregion_notify_adapter(dev, PCI_D0); |
8a187455 PZ |
1518 | dev_priv->pm.suspended = false; |
1519 | ||
016970be | 1520 | ret = intel_resume_prepare(dev_priv, true); |
0ab9cfeb ID |
1521 | /* |
1522 | * No point of rolling back things in case of an error, as the best | |
1523 | * we can do is to hope that things will still work (and disable RPM). | |
1524 | */ | |
92b806d3 ID |
1525 | i915_gem_init_swizzling(dev); |
1526 | gen6_update_ring_freq(dev); | |
1527 | ||
b5478bcd | 1528 | intel_runtime_pm_restore_interrupts(dev); |
9486db61 | 1529 | intel_reset_gt_powersave(dev); |
b5478bcd | 1530 | |
0ab9cfeb ID |
1531 | if (ret) |
1532 | DRM_ERROR("Runtime resume failed, disabling it (%d)\n", ret); | |
1533 | else | |
1534 | DRM_DEBUG_KMS("Device resumed\n"); | |
1535 | ||
1536 | return ret; | |
8a187455 PZ |
1537 | } |
1538 | ||
016970be SK |
1539 | /* |
1540 | * This function implements common functionality of runtime and system | |
1541 | * suspend sequence. | |
1542 | */ | |
ebc32824 SK |
1543 | static int intel_suspend_complete(struct drm_i915_private *dev_priv) |
1544 | { | |
1545 | struct drm_device *dev = dev_priv->dev; | |
1546 | int ret; | |
1547 | ||
604effb7 | 1548 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
ebc32824 | 1549 | ret = hsw_suspend_complete(dev_priv); |
604effb7 | 1550 | else if (IS_VALLEYVIEW(dev)) |
ebc32824 | 1551 | ret = vlv_suspend_complete(dev_priv); |
604effb7 ID |
1552 | else |
1553 | ret = 0; | |
ebc32824 SK |
1554 | |
1555 | return ret; | |
1556 | } | |
1557 | ||
016970be SK |
1558 | /* |
1559 | * This function implements common functionality of runtime and system | |
1560 | * resume sequence. Variable rpm_resume used for implementing different | |
1561 | * code paths. | |
1562 | */ | |
1563 | static int intel_resume_prepare(struct drm_i915_private *dev_priv, | |
1564 | bool rpm_resume) | |
ebc32824 SK |
1565 | { |
1566 | struct drm_device *dev = dev_priv->dev; | |
1567 | int ret; | |
1568 | ||
604effb7 | 1569 | if (IS_GEN6(dev)) |
016970be | 1570 | ret = snb_resume_prepare(dev_priv, rpm_resume); |
604effb7 | 1571 | else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
016970be | 1572 | ret = hsw_resume_prepare(dev_priv, rpm_resume); |
604effb7 | 1573 | else if (IS_VALLEYVIEW(dev)) |
016970be | 1574 | ret = vlv_resume_prepare(dev_priv, rpm_resume); |
604effb7 ID |
1575 | else |
1576 | ret = 0; | |
ebc32824 SK |
1577 | |
1578 | return ret; | |
1579 | } | |
1580 | ||
b4b78d12 | 1581 | static const struct dev_pm_ops i915_pm_ops = { |
0206e353 | 1582 | .suspend = i915_pm_suspend, |
76c4b250 ID |
1583 | .suspend_late = i915_pm_suspend_late, |
1584 | .resume_early = i915_pm_resume_early, | |
0206e353 AJ |
1585 | .resume = i915_pm_resume, |
1586 | .freeze = i915_pm_freeze, | |
76c4b250 | 1587 | .thaw_early = i915_pm_thaw_early, |
0206e353 AJ |
1588 | .thaw = i915_pm_thaw, |
1589 | .poweroff = i915_pm_poweroff, | |
76c4b250 | 1590 | .restore_early = i915_pm_resume_early, |
0206e353 | 1591 | .restore = i915_pm_resume, |
97bea207 PZ |
1592 | .runtime_suspend = intel_runtime_suspend, |
1593 | .runtime_resume = intel_runtime_resume, | |
cbda12d7 ZW |
1594 | }; |
1595 | ||
78b68556 | 1596 | static const struct vm_operations_struct i915_gem_vm_ops = { |
de151cf6 | 1597 | .fault = i915_gem_fault, |
ab00b3e5 JB |
1598 | .open = drm_gem_vm_open, |
1599 | .close = drm_gem_vm_close, | |
de151cf6 JB |
1600 | }; |
1601 | ||
e08e96de AV |
1602 | static const struct file_operations i915_driver_fops = { |
1603 | .owner = THIS_MODULE, | |
1604 | .open = drm_open, | |
1605 | .release = drm_release, | |
1606 | .unlocked_ioctl = drm_ioctl, | |
1607 | .mmap = drm_gem_mmap, | |
1608 | .poll = drm_poll, | |
e08e96de AV |
1609 | .read = drm_read, |
1610 | #ifdef CONFIG_COMPAT | |
1611 | .compat_ioctl = i915_compat_ioctl, | |
1612 | #endif | |
1613 | .llseek = noop_llseek, | |
1614 | }; | |
1615 | ||
1da177e4 | 1616 | static struct drm_driver driver = { |
0c54781b MW |
1617 | /* Don't use MTRRs here; the Xserver or userspace app should |
1618 | * deal with them for Intel hardware. | |
792d2b9a | 1619 | */ |
673a394b | 1620 | .driver_features = |
24986ee0 | 1621 | DRIVER_USE_AGP | |
10ba5012 KH |
1622 | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM | DRIVER_PRIME | |
1623 | DRIVER_RENDER, | |
22eae947 | 1624 | .load = i915_driver_load, |
ba8bbcf6 | 1625 | .unload = i915_driver_unload, |
673a394b | 1626 | .open = i915_driver_open, |
22eae947 DA |
1627 | .lastclose = i915_driver_lastclose, |
1628 | .preclose = i915_driver_preclose, | |
673a394b | 1629 | .postclose = i915_driver_postclose, |
915b4d11 | 1630 | .set_busid = drm_pci_set_busid, |
d8e29209 RW |
1631 | |
1632 | /* Used in place of i915_pm_ops for non-DRIVER_MODESET */ | |
1633 | .suspend = i915_suspend, | |
76c4b250 | 1634 | .resume = i915_resume_legacy, |
d8e29209 | 1635 | |
cda17380 | 1636 | .device_is_agp = i915_driver_device_is_agp, |
7c1c2871 DA |
1637 | .master_create = i915_master_create, |
1638 | .master_destroy = i915_master_destroy, | |
955b12de | 1639 | #if defined(CONFIG_DEBUG_FS) |
27c202ad BG |
1640 | .debugfs_init = i915_debugfs_init, |
1641 | .debugfs_cleanup = i915_debugfs_cleanup, | |
955b12de | 1642 | #endif |
673a394b | 1643 | .gem_free_object = i915_gem_free_object, |
de151cf6 | 1644 | .gem_vm_ops = &i915_gem_vm_ops, |
1286ff73 DV |
1645 | |
1646 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, | |
1647 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
1648 | .gem_prime_export = i915_gem_prime_export, | |
1649 | .gem_prime_import = i915_gem_prime_import, | |
1650 | ||
ff72145b DA |
1651 | .dumb_create = i915_gem_dumb_create, |
1652 | .dumb_map_offset = i915_gem_mmap_gtt, | |
43387b37 | 1653 | .dumb_destroy = drm_gem_dumb_destroy, |
1da177e4 | 1654 | .ioctls = i915_ioctls, |
e08e96de | 1655 | .fops = &i915_driver_fops, |
22eae947 DA |
1656 | .name = DRIVER_NAME, |
1657 | .desc = DRIVER_DESC, | |
1658 | .date = DRIVER_DATE, | |
1659 | .major = DRIVER_MAJOR, | |
1660 | .minor = DRIVER_MINOR, | |
1661 | .patchlevel = DRIVER_PATCHLEVEL, | |
1da177e4 LT |
1662 | }; |
1663 | ||
8410ea3b DA |
1664 | static struct pci_driver i915_pci_driver = { |
1665 | .name = DRIVER_NAME, | |
1666 | .id_table = pciidlist, | |
1667 | .probe = i915_pci_probe, | |
1668 | .remove = i915_pci_remove, | |
1669 | .driver.pm = &i915_pm_ops, | |
1670 | }; | |
1671 | ||
1da177e4 LT |
1672 | static int __init i915_init(void) |
1673 | { | |
1674 | driver.num_ioctls = i915_max_ioctl; | |
79e53945 JB |
1675 | |
1676 | /* | |
1677 | * If CONFIG_DRM_I915_KMS is set, default to KMS unless | |
1678 | * explicitly disabled with the module pararmeter. | |
1679 | * | |
1680 | * Otherwise, just follow the parameter (defaulting to off). | |
1681 | * | |
1682 | * Allow optional vga_text_mode_force boot option to override | |
1683 | * the default behavior. | |
1684 | */ | |
1685 | #if defined(CONFIG_DRM_I915_KMS) | |
d330a953 | 1686 | if (i915.modeset != 0) |
79e53945 JB |
1687 | driver.driver_features |= DRIVER_MODESET; |
1688 | #endif | |
d330a953 | 1689 | if (i915.modeset == 1) |
79e53945 JB |
1690 | driver.driver_features |= DRIVER_MODESET; |
1691 | ||
1692 | #ifdef CONFIG_VGA_CONSOLE | |
d330a953 | 1693 | if (vgacon_text_force() && i915.modeset == -1) |
79e53945 JB |
1694 | driver.driver_features &= ~DRIVER_MODESET; |
1695 | #endif | |
1696 | ||
b30324ad | 1697 | if (!(driver.driver_features & DRIVER_MODESET)) { |
3885c6bb | 1698 | driver.get_vblank_timestamp = NULL; |
b30324ad DV |
1699 | #ifndef CONFIG_DRM_I915_UMS |
1700 | /* Silently fail loading to not upset userspace. */ | |
c9cd7b65 | 1701 | DRM_DEBUG_DRIVER("KMS and UMS disabled.\n"); |
b30324ad DV |
1702 | return 0; |
1703 | #endif | |
1704 | } | |
3885c6bb | 1705 | |
8410ea3b | 1706 | return drm_pci_init(&driver, &i915_pci_driver); |
1da177e4 LT |
1707 | } |
1708 | ||
1709 | static void __exit i915_exit(void) | |
1710 | { | |
b33ecdd1 DV |
1711 | #ifndef CONFIG_DRM_I915_UMS |
1712 | if (!(driver.driver_features & DRIVER_MODESET)) | |
1713 | return; /* Never loaded a driver. */ | |
1714 | #endif | |
1715 | ||
8410ea3b | 1716 | drm_pci_exit(&driver, &i915_pci_driver); |
1da177e4 LT |
1717 | } |
1718 | ||
1719 | module_init(i915_init); | |
1720 | module_exit(i915_exit); | |
1721 | ||
0a6d1631 | 1722 | MODULE_AUTHOR("Tungsten Graphics, Inc."); |
1eab9234 | 1723 | MODULE_AUTHOR("Intel Corporation"); |
0a6d1631 | 1724 | |
b5e89ed5 | 1725 | MODULE_DESCRIPTION(DRIVER_DESC); |
1da177e4 | 1726 | MODULE_LICENSE("GPL and additional rights"); |