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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> |
1da177e4 LT |
31 | #include "drmP.h" |
32 | #include "drm.h" | |
33 | #include "i915_drm.h" | |
34 | #include "i915_drv.h" | |
f49f0586 | 35 | #include "intel_drv.h" |
1da177e4 | 36 | |
79e53945 | 37 | #include <linux/console.h> |
354ff967 | 38 | #include "drm_crtc_helper.h" |
79e53945 | 39 | |
d6073d77 | 40 | static int i915_modeset = -1; |
79e53945 JB |
41 | module_param_named(modeset, i915_modeset, int, 0400); |
42 | ||
43 | unsigned int i915_fbpercrtc = 0; | |
44 | module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400); | |
1da177e4 | 45 | |
652c393a | 46 | unsigned int i915_powersave = 1; |
0aa99277 | 47 | module_param_named(powersave, i915_powersave, int, 0600); |
652c393a | 48 | |
33814341 JB |
49 | unsigned int i915_lvds_downclock = 0; |
50 | module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400); | |
51 | ||
112b715e | 52 | static struct drm_driver driver; |
1f7a6e37 | 53 | extern int intel_agp_enabled; |
112b715e | 54 | |
cfdf1fa2 | 55 | #define INTEL_VGA_DEVICE(id, info) { \ |
49ae35f2 KH |
56 | .class = PCI_CLASS_DISPLAY_VGA << 8, \ |
57 | .class_mask = 0xffff00, \ | |
58 | .vendor = 0x8086, \ | |
59 | .device = id, \ | |
60 | .subvendor = PCI_ANY_ID, \ | |
61 | .subdevice = PCI_ANY_ID, \ | |
cfdf1fa2 KH |
62 | .driver_data = (unsigned long) info } |
63 | ||
9a7e8492 | 64 | static const struct intel_device_info intel_i830_info = { |
a6c45cf0 | 65 | .gen = 2, .is_mobile = 1, .cursor_needs_physical = 1, |
31578148 | 66 | .has_overlay = 1, .overlay_needs_physical = 1, |
cfdf1fa2 KH |
67 | }; |
68 | ||
9a7e8492 | 69 | static const struct intel_device_info intel_845g_info = { |
a6c45cf0 | 70 | .gen = 2, |
31578148 | 71 | .has_overlay = 1, .overlay_needs_physical = 1, |
cfdf1fa2 KH |
72 | }; |
73 | ||
9a7e8492 | 74 | static const struct intel_device_info intel_i85x_info = { |
a6c45cf0 | 75 | .gen = 2, .is_i85x = 1, .is_mobile = 1, |
5ce8ba7c | 76 | .cursor_needs_physical = 1, |
31578148 | 77 | .has_overlay = 1, .overlay_needs_physical = 1, |
cfdf1fa2 KH |
78 | }; |
79 | ||
9a7e8492 | 80 | static const struct intel_device_info intel_i865g_info = { |
a6c45cf0 | 81 | .gen = 2, |
31578148 | 82 | .has_overlay = 1, .overlay_needs_physical = 1, |
cfdf1fa2 KH |
83 | }; |
84 | ||
9a7e8492 | 85 | static const struct intel_device_info intel_i915g_info = { |
a6c45cf0 | 86 | .gen = 3, .is_i915g = 1, .cursor_needs_physical = 1, |
31578148 | 87 | .has_overlay = 1, .overlay_needs_physical = 1, |
cfdf1fa2 | 88 | }; |
9a7e8492 | 89 | static const struct intel_device_info intel_i915gm_info = { |
a6c45cf0 | 90 | .gen = 3, .is_mobile = 1, |
b295d1b6 | 91 | .cursor_needs_physical = 1, |
31578148 | 92 | .has_overlay = 1, .overlay_needs_physical = 1, |
a6c45cf0 | 93 | .supports_tv = 1, |
cfdf1fa2 | 94 | }; |
9a7e8492 | 95 | static const struct intel_device_info intel_i945g_info = { |
a6c45cf0 | 96 | .gen = 3, .has_hotplug = 1, .cursor_needs_physical = 1, |
31578148 | 97 | .has_overlay = 1, .overlay_needs_physical = 1, |
cfdf1fa2 | 98 | }; |
9a7e8492 | 99 | static const struct intel_device_info intel_i945gm_info = { |
a6c45cf0 | 100 | .gen = 3, .is_i945gm = 1, .is_mobile = 1, |
b295d1b6 | 101 | .has_hotplug = 1, .cursor_needs_physical = 1, |
31578148 | 102 | .has_overlay = 1, .overlay_needs_physical = 1, |
a6c45cf0 | 103 | .supports_tv = 1, |
cfdf1fa2 KH |
104 | }; |
105 | ||
9a7e8492 | 106 | static const struct intel_device_info intel_i965g_info = { |
a6c45cf0 | 107 | .gen = 4, .is_broadwater = 1, |
c96c3a8c | 108 | .has_hotplug = 1, |
31578148 | 109 | .has_overlay = 1, |
cfdf1fa2 KH |
110 | }; |
111 | ||
9a7e8492 | 112 | static const struct intel_device_info intel_i965gm_info = { |
a6c45cf0 | 113 | .gen = 4, .is_crestline = 1, |
c96c3a8c | 114 | .is_mobile = 1, .has_fbc = 1, .has_rc6 = 1, .has_hotplug = 1, |
31578148 | 115 | .has_overlay = 1, |
a6c45cf0 | 116 | .supports_tv = 1, |
cfdf1fa2 KH |
117 | }; |
118 | ||
9a7e8492 | 119 | static const struct intel_device_info intel_g33_info = { |
a6c45cf0 | 120 | .gen = 3, .is_g33 = 1, |
c96c3a8c | 121 | .need_gfx_hws = 1, .has_hotplug = 1, |
31578148 | 122 | .has_overlay = 1, |
cfdf1fa2 KH |
123 | }; |
124 | ||
9a7e8492 | 125 | static const struct intel_device_info intel_g45_info = { |
a6c45cf0 | 126 | .gen = 4, .is_g4x = 1, .need_gfx_hws = 1, |
c96c3a8c | 127 | .has_pipe_cxsr = 1, .has_hotplug = 1, |
92f49d9c | 128 | .has_bsd_ring = 1, |
cfdf1fa2 KH |
129 | }; |
130 | ||
9a7e8492 | 131 | static const struct intel_device_info intel_gm45_info = { |
a6c45cf0 | 132 | .gen = 4, .is_g4x = 1, |
cfdf1fa2 | 133 | .is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1, |
c96c3a8c | 134 | .has_pipe_cxsr = 1, .has_hotplug = 1, |
a6c45cf0 | 135 | .supports_tv = 1, |
92f49d9c | 136 | .has_bsd_ring = 1, |
cfdf1fa2 KH |
137 | }; |
138 | ||
9a7e8492 | 139 | static const struct intel_device_info intel_pineview_info = { |
a6c45cf0 | 140 | .gen = 3, .is_g33 = 1, .is_pineview = 1, .is_mobile = 1, |
c96c3a8c | 141 | .need_gfx_hws = 1, .has_hotplug = 1, |
31578148 | 142 | .has_overlay = 1, |
cfdf1fa2 KH |
143 | }; |
144 | ||
9a7e8492 | 145 | static const struct intel_device_info intel_ironlake_d_info = { |
f00a3ddf | 146 | .gen = 5, |
c96c3a8c | 147 | .need_gfx_hws = 1, .has_pipe_cxsr = 1, .has_hotplug = 1, |
92f49d9c | 148 | .has_bsd_ring = 1, |
cfdf1fa2 KH |
149 | }; |
150 | ||
9a7e8492 | 151 | static const struct intel_device_info intel_ironlake_m_info = { |
f00a3ddf | 152 | .gen = 5, .is_mobile = 1, |
16c59ef3 AS |
153 | .need_gfx_hws = 1, .has_rc6 = 1, .has_hotplug = 1, |
154 | .has_fbc = 0, /* disabled due to buggy hardware */ | |
92f49d9c | 155 | .has_bsd_ring = 1, |
cfdf1fa2 KH |
156 | }; |
157 | ||
9a7e8492 | 158 | static const struct intel_device_info intel_sandybridge_d_info = { |
a6c45cf0 | 159 | .gen = 6, |
c96c3a8c | 160 | .need_gfx_hws = 1, .has_hotplug = 1, |
881f47b6 | 161 | .has_bsd_ring = 1, |
549f7365 | 162 | .has_blt_ring = 1, |
f6e450a6 EA |
163 | }; |
164 | ||
9a7e8492 | 165 | static const struct intel_device_info intel_sandybridge_m_info = { |
a6c45cf0 | 166 | .gen = 6, .is_mobile = 1, |
c96c3a8c | 167 | .need_gfx_hws = 1, .has_hotplug = 1, |
881f47b6 | 168 | .has_bsd_ring = 1, |
549f7365 | 169 | .has_blt_ring = 1, |
a13e4093 EA |
170 | }; |
171 | ||
6103da0d CW |
172 | static const struct pci_device_id pciidlist[] = { /* aka */ |
173 | INTEL_VGA_DEVICE(0x3577, &intel_i830_info), /* I830_M */ | |
174 | INTEL_VGA_DEVICE(0x2562, &intel_845g_info), /* 845_G */ | |
175 | INTEL_VGA_DEVICE(0x3582, &intel_i85x_info), /* I855_GM */ | |
5ce8ba7c | 176 | INTEL_VGA_DEVICE(0x358e, &intel_i85x_info), |
6103da0d CW |
177 | INTEL_VGA_DEVICE(0x2572, &intel_i865g_info), /* I865_G */ |
178 | INTEL_VGA_DEVICE(0x2582, &intel_i915g_info), /* I915_G */ | |
179 | INTEL_VGA_DEVICE(0x258a, &intel_i915g_info), /* E7221_G */ | |
180 | INTEL_VGA_DEVICE(0x2592, &intel_i915gm_info), /* I915_GM */ | |
181 | INTEL_VGA_DEVICE(0x2772, &intel_i945g_info), /* I945_G */ | |
182 | INTEL_VGA_DEVICE(0x27a2, &intel_i945gm_info), /* I945_GM */ | |
183 | INTEL_VGA_DEVICE(0x27ae, &intel_i945gm_info), /* I945_GME */ | |
184 | INTEL_VGA_DEVICE(0x2972, &intel_i965g_info), /* I946_GZ */ | |
185 | INTEL_VGA_DEVICE(0x2982, &intel_i965g_info), /* G35_G */ | |
186 | INTEL_VGA_DEVICE(0x2992, &intel_i965g_info), /* I965_Q */ | |
187 | INTEL_VGA_DEVICE(0x29a2, &intel_i965g_info), /* I965_G */ | |
188 | INTEL_VGA_DEVICE(0x29b2, &intel_g33_info), /* Q35_G */ | |
189 | INTEL_VGA_DEVICE(0x29c2, &intel_g33_info), /* G33_G */ | |
190 | INTEL_VGA_DEVICE(0x29d2, &intel_g33_info), /* Q33_G */ | |
191 | INTEL_VGA_DEVICE(0x2a02, &intel_i965gm_info), /* I965_GM */ | |
192 | INTEL_VGA_DEVICE(0x2a12, &intel_i965gm_info), /* I965_GME */ | |
193 | INTEL_VGA_DEVICE(0x2a42, &intel_gm45_info), /* GM45_G */ | |
194 | INTEL_VGA_DEVICE(0x2e02, &intel_g45_info), /* IGD_E_G */ | |
195 | INTEL_VGA_DEVICE(0x2e12, &intel_g45_info), /* Q45_G */ | |
196 | INTEL_VGA_DEVICE(0x2e22, &intel_g45_info), /* G45_G */ | |
197 | INTEL_VGA_DEVICE(0x2e32, &intel_g45_info), /* G41_G */ | |
198 | INTEL_VGA_DEVICE(0x2e42, &intel_g45_info), /* B43_G */ | |
41a51428 | 199 | INTEL_VGA_DEVICE(0x2e92, &intel_g45_info), /* B43_G.1 */ |
cfdf1fa2 KH |
200 | INTEL_VGA_DEVICE(0xa001, &intel_pineview_info), |
201 | INTEL_VGA_DEVICE(0xa011, &intel_pineview_info), | |
202 | INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info), | |
203 | INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info), | |
f6e450a6 | 204 | INTEL_VGA_DEVICE(0x0102, &intel_sandybridge_d_info), |
85540480 ZW |
205 | INTEL_VGA_DEVICE(0x0112, &intel_sandybridge_d_info), |
206 | INTEL_VGA_DEVICE(0x0122, &intel_sandybridge_d_info), | |
a13e4093 | 207 | INTEL_VGA_DEVICE(0x0106, &intel_sandybridge_m_info), |
85540480 | 208 | INTEL_VGA_DEVICE(0x0116, &intel_sandybridge_m_info), |
4fefe435 | 209 | INTEL_VGA_DEVICE(0x0126, &intel_sandybridge_m_info), |
85540480 | 210 | INTEL_VGA_DEVICE(0x010A, &intel_sandybridge_d_info), |
49ae35f2 | 211 | {0, 0, 0} |
1da177e4 LT |
212 | }; |
213 | ||
79e53945 JB |
214 | #if defined(CONFIG_DRM_I915_KMS) |
215 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
216 | #endif | |
217 | ||
3bad0781 ZW |
218 | #define INTEL_PCH_DEVICE_ID_MASK 0xff00 |
219 | #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00 | |
220 | ||
221 | void intel_detect_pch (struct drm_device *dev) | |
222 | { | |
223 | struct drm_i915_private *dev_priv = dev->dev_private; | |
224 | struct pci_dev *pch; | |
225 | ||
226 | /* | |
227 | * The reason to probe ISA bridge instead of Dev31:Fun0 is to | |
228 | * make graphics device passthrough work easy for VMM, that only | |
229 | * need to expose ISA bridge to let driver know the real hardware | |
230 | * underneath. This is a requirement from virtualization team. | |
231 | */ | |
232 | pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL); | |
233 | if (pch) { | |
234 | if (pch->vendor == PCI_VENDOR_ID_INTEL) { | |
235 | int id; | |
236 | id = pch->device & INTEL_PCH_DEVICE_ID_MASK; | |
237 | ||
238 | if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) { | |
239 | dev_priv->pch_type = PCH_CPT; | |
240 | DRM_DEBUG_KMS("Found CougarPoint PCH\n"); | |
241 | } | |
242 | } | |
243 | pci_dev_put(pch); | |
244 | } | |
245 | } | |
246 | ||
84b79f8d | 247 | static int i915_drm_freeze(struct drm_device *dev) |
ba8bbcf6 | 248 | { |
61caf87c RW |
249 | struct drm_i915_private *dev_priv = dev->dev_private; |
250 | ||
ba8bbcf6 | 251 | pci_save_state(dev->pdev); |
ba8bbcf6 | 252 | |
5669fcac | 253 | /* If KMS is active, we do the leavevt stuff here */ |
226485e9 | 254 | if (drm_core_check_feature(dev, DRIVER_MODESET)) { |
84b79f8d RW |
255 | int error = i915_gem_idle(dev); |
256 | if (error) { | |
226485e9 | 257 | dev_err(&dev->pdev->dev, |
84b79f8d RW |
258 | "GEM idle failed, resume might fail\n"); |
259 | return error; | |
260 | } | |
226485e9 | 261 | drm_irq_uninstall(dev); |
5669fcac JB |
262 | } |
263 | ||
9e06dd39 JB |
264 | i915_save_state(dev); |
265 | ||
44834a67 | 266 | intel_opregion_fini(dev); |
8ee1c3db | 267 | |
84b79f8d RW |
268 | /* Modeset on resume, not lid events */ |
269 | dev_priv->modeset_on_lid = 0; | |
61caf87c RW |
270 | |
271 | return 0; | |
84b79f8d RW |
272 | } |
273 | ||
6a9ee8af | 274 | int i915_suspend(struct drm_device *dev, pm_message_t state) |
84b79f8d RW |
275 | { |
276 | int error; | |
277 | ||
278 | if (!dev || !dev->dev_private) { | |
279 | DRM_ERROR("dev: %p\n", dev); | |
280 | DRM_ERROR("DRM not initialized, aborting suspend.\n"); | |
281 | return -ENODEV; | |
282 | } | |
283 | ||
284 | if (state.event == PM_EVENT_PRETHAW) | |
285 | return 0; | |
286 | ||
6eecba33 CW |
287 | drm_kms_helper_poll_disable(dev); |
288 | ||
84b79f8d RW |
289 | error = i915_drm_freeze(dev); |
290 | if (error) | |
291 | return error; | |
292 | ||
b932ccb5 DA |
293 | if (state.event == PM_EVENT_SUSPEND) { |
294 | /* Shut down the device */ | |
295 | pci_disable_device(dev->pdev); | |
296 | pci_set_power_state(dev->pdev, PCI_D3hot); | |
297 | } | |
ba8bbcf6 JB |
298 | |
299 | return 0; | |
300 | } | |
301 | ||
84b79f8d | 302 | static int i915_drm_thaw(struct drm_device *dev) |
ba8bbcf6 | 303 | { |
5669fcac | 304 | struct drm_i915_private *dev_priv = dev->dev_private; |
84b79f8d | 305 | int error = 0; |
8ee1c3db | 306 | |
61caf87c | 307 | i915_restore_state(dev); |
44834a67 | 308 | intel_opregion_setup(dev); |
61caf87c | 309 | |
5669fcac JB |
310 | /* KMS EnterVT equivalent */ |
311 | if (drm_core_check_feature(dev, DRIVER_MODESET)) { | |
312 | mutex_lock(&dev->struct_mutex); | |
313 | dev_priv->mm.suspended = 0; | |
314 | ||
84b79f8d | 315 | error = i915_gem_init_ringbuffer(dev); |
5669fcac | 316 | mutex_unlock(&dev->struct_mutex); |
226485e9 JB |
317 | |
318 | drm_irq_install(dev); | |
84b79f8d | 319 | |
354ff967 ZY |
320 | /* Resume the modeset for every activated CRTC */ |
321 | drm_helper_resume_force_mode(dev); | |
322 | } | |
5669fcac | 323 | |
44834a67 CW |
324 | intel_opregion_init(dev); |
325 | ||
c9354c85 | 326 | dev_priv->modeset_on_lid = 0; |
06891e27 | 327 | |
84b79f8d RW |
328 | return error; |
329 | } | |
330 | ||
6a9ee8af | 331 | int i915_resume(struct drm_device *dev) |
84b79f8d | 332 | { |
6eecba33 CW |
333 | int ret; |
334 | ||
84b79f8d RW |
335 | if (pci_enable_device(dev->pdev)) |
336 | return -EIO; | |
337 | ||
338 | pci_set_master(dev->pdev); | |
339 | ||
6eecba33 CW |
340 | ret = i915_drm_thaw(dev); |
341 | if (ret) | |
342 | return ret; | |
343 | ||
344 | drm_kms_helper_poll_enable(dev); | |
345 | return 0; | |
ba8bbcf6 JB |
346 | } |
347 | ||
dc96e9b8 CW |
348 | static int i8xx_do_reset(struct drm_device *dev, u8 flags) |
349 | { | |
350 | struct drm_i915_private *dev_priv = dev->dev_private; | |
351 | ||
352 | if (IS_I85X(dev)) | |
353 | return -ENODEV; | |
354 | ||
355 | I915_WRITE(D_STATE, I915_READ(D_STATE) | DSTATE_GFX_RESET_I830); | |
356 | POSTING_READ(D_STATE); | |
357 | ||
358 | if (IS_I830(dev) || IS_845G(dev)) { | |
359 | I915_WRITE(DEBUG_RESET_I830, | |
360 | DEBUG_RESET_DISPLAY | | |
361 | DEBUG_RESET_RENDER | | |
362 | DEBUG_RESET_FULL); | |
363 | POSTING_READ(DEBUG_RESET_I830); | |
364 | msleep(1); | |
365 | ||
366 | I915_WRITE(DEBUG_RESET_I830, 0); | |
367 | POSTING_READ(DEBUG_RESET_I830); | |
368 | } | |
369 | ||
370 | msleep(1); | |
371 | ||
372 | I915_WRITE(D_STATE, I915_READ(D_STATE) & ~DSTATE_GFX_RESET_I830); | |
373 | POSTING_READ(D_STATE); | |
374 | ||
375 | return 0; | |
376 | } | |
377 | ||
f49f0586 KG |
378 | static int i965_reset_complete(struct drm_device *dev) |
379 | { | |
380 | u8 gdrst; | |
eeccdcac | 381 | pci_read_config_byte(dev->pdev, I965_GDRST, &gdrst); |
f49f0586 KG |
382 | return gdrst & 0x1; |
383 | } | |
384 | ||
0573ed4a KG |
385 | static int i965_do_reset(struct drm_device *dev, u8 flags) |
386 | { | |
387 | u8 gdrst; | |
388 | ||
ae681d96 CW |
389 | /* |
390 | * Set the domains we want to reset (GRDOM/bits 2 and 3) as | |
391 | * well as the reset bit (GR/bit 0). Setting the GR bit | |
392 | * triggers the reset; when done, the hardware will clear it. | |
393 | */ | |
0573ed4a KG |
394 | pci_read_config_byte(dev->pdev, I965_GDRST, &gdrst); |
395 | pci_write_config_byte(dev->pdev, I965_GDRST, gdrst | flags | 0x1); | |
396 | ||
397 | return wait_for(i965_reset_complete(dev), 500); | |
398 | } | |
399 | ||
400 | static int ironlake_do_reset(struct drm_device *dev, u8 flags) | |
401 | { | |
402 | struct drm_i915_private *dev_priv = dev->dev_private; | |
403 | u32 gdrst = I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR); | |
404 | I915_WRITE(MCHBAR_MIRROR_BASE + ILK_GDSR, gdrst | flags | 0x1); | |
405 | return wait_for(I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR) & 0x1, 500); | |
ba8bbcf6 JB |
406 | } |
407 | ||
11ed50ec BG |
408 | /** |
409 | * i965_reset - reset chip after a hang | |
410 | * @dev: drm device to reset | |
411 | * @flags: reset domains | |
412 | * | |
413 | * Reset the chip. Useful if a hang is detected. Returns zero on successful | |
414 | * reset or otherwise an error code. | |
415 | * | |
416 | * Procedure is fairly simple: | |
417 | * - reset the chip using the reset reg | |
418 | * - re-init context state | |
419 | * - re-init hardware status page | |
420 | * - re-init ring buffer | |
421 | * - re-init interrupt state | |
422 | * - re-init display | |
423 | */ | |
f803aa55 | 424 | int i915_reset(struct drm_device *dev, u8 flags) |
11ed50ec BG |
425 | { |
426 | drm_i915_private_t *dev_priv = dev->dev_private; | |
11ed50ec BG |
427 | /* |
428 | * We really should only reset the display subsystem if we actually | |
429 | * need to | |
430 | */ | |
431 | bool need_display = true; | |
0573ed4a | 432 | int ret; |
11ed50ec BG |
433 | |
434 | mutex_lock(&dev->struct_mutex); | |
435 | ||
069efc1d | 436 | i915_gem_reset(dev); |
77f01230 | 437 | |
f803aa55 | 438 | ret = -ENODEV; |
ae681d96 CW |
439 | if (get_seconds() - dev_priv->last_gpu_reset < 5) { |
440 | DRM_ERROR("GPU hanging too fast, declaring wedged!\n"); | |
441 | } else switch (INTEL_INFO(dev)->gen) { | |
f803aa55 | 442 | case 5: |
0573ed4a | 443 | ret = ironlake_do_reset(dev, flags); |
f803aa55 CW |
444 | break; |
445 | case 4: | |
0573ed4a | 446 | ret = i965_do_reset(dev, flags); |
f803aa55 | 447 | break; |
dc96e9b8 CW |
448 | case 2: |
449 | ret = i8xx_do_reset(dev, flags); | |
450 | break; | |
f803aa55 | 451 | } |
ae681d96 | 452 | dev_priv->last_gpu_reset = get_seconds(); |
0573ed4a | 453 | if (ret) { |
f803aa55 | 454 | DRM_ERROR("Failed to reset chip.\n"); |
f953c935 | 455 | mutex_unlock(&dev->struct_mutex); |
f803aa55 | 456 | return ret; |
11ed50ec BG |
457 | } |
458 | ||
459 | /* Ok, now get things going again... */ | |
460 | ||
461 | /* | |
462 | * Everything depends on having the GTT running, so we need to start | |
463 | * there. Fortunately we don't need to do this unless we reset the | |
464 | * chip at a PCI level. | |
465 | * | |
466 | * Next we need to restore the context, but we don't use those | |
467 | * yet either... | |
468 | * | |
469 | * Ring buffer needs to be re-initialized in the KMS case, or if X | |
470 | * was running at the time of the reset (i.e. we weren't VT | |
471 | * switched away). | |
472 | */ | |
473 | if (drm_core_check_feature(dev, DRIVER_MODESET) || | |
8187a2b7 ZN |
474 | !dev_priv->mm.suspended) { |
475 | struct intel_ring_buffer *ring = &dev_priv->render_ring; | |
11ed50ec | 476 | dev_priv->mm.suspended = 0; |
8187a2b7 | 477 | ring->init(dev, ring); |
11ed50ec BG |
478 | mutex_unlock(&dev->struct_mutex); |
479 | drm_irq_uninstall(dev); | |
480 | drm_irq_install(dev); | |
481 | mutex_lock(&dev->struct_mutex); | |
482 | } | |
483 | ||
9fd98141 CW |
484 | mutex_unlock(&dev->struct_mutex); |
485 | ||
11ed50ec | 486 | /* |
9fd98141 CW |
487 | * Perform a full modeset as on later generations, e.g. Ironlake, we may |
488 | * need to retrain the display link and cannot just restore the register | |
489 | * values. | |
11ed50ec | 490 | */ |
9fd98141 CW |
491 | if (need_display) { |
492 | mutex_lock(&dev->mode_config.mutex); | |
493 | drm_helper_resume_force_mode(dev); | |
494 | mutex_unlock(&dev->mode_config.mutex); | |
495 | } | |
11ed50ec | 496 | |
11ed50ec BG |
497 | return 0; |
498 | } | |
499 | ||
500 | ||
112b715e KH |
501 | static int __devinit |
502 | i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
503 | { | |
dcdb1674 | 504 | return drm_get_pci_dev(pdev, ent, &driver); |
112b715e KH |
505 | } |
506 | ||
507 | static void | |
508 | i915_pci_remove(struct pci_dev *pdev) | |
509 | { | |
510 | struct drm_device *dev = pci_get_drvdata(pdev); | |
511 | ||
512 | drm_put_dev(dev); | |
513 | } | |
514 | ||
84b79f8d | 515 | static int i915_pm_suspend(struct device *dev) |
112b715e | 516 | { |
84b79f8d RW |
517 | struct pci_dev *pdev = to_pci_dev(dev); |
518 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
519 | int error; | |
112b715e | 520 | |
84b79f8d RW |
521 | if (!drm_dev || !drm_dev->dev_private) { |
522 | dev_err(dev, "DRM not initialized, aborting suspend.\n"); | |
523 | return -ENODEV; | |
524 | } | |
112b715e | 525 | |
84b79f8d RW |
526 | error = i915_drm_freeze(drm_dev); |
527 | if (error) | |
528 | return error; | |
112b715e | 529 | |
84b79f8d RW |
530 | pci_disable_device(pdev); |
531 | pci_set_power_state(pdev, PCI_D3hot); | |
cbda12d7 | 532 | |
84b79f8d | 533 | return 0; |
cbda12d7 ZW |
534 | } |
535 | ||
84b79f8d | 536 | static int i915_pm_resume(struct device *dev) |
cbda12d7 | 537 | { |
84b79f8d RW |
538 | struct pci_dev *pdev = to_pci_dev(dev); |
539 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
540 | ||
541 | return i915_resume(drm_dev); | |
cbda12d7 ZW |
542 | } |
543 | ||
84b79f8d | 544 | static int i915_pm_freeze(struct device *dev) |
cbda12d7 | 545 | { |
84b79f8d RW |
546 | struct pci_dev *pdev = to_pci_dev(dev); |
547 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
548 | ||
549 | if (!drm_dev || !drm_dev->dev_private) { | |
550 | dev_err(dev, "DRM not initialized, aborting suspend.\n"); | |
551 | return -ENODEV; | |
552 | } | |
553 | ||
554 | return i915_drm_freeze(drm_dev); | |
cbda12d7 ZW |
555 | } |
556 | ||
84b79f8d | 557 | static int i915_pm_thaw(struct device *dev) |
cbda12d7 | 558 | { |
84b79f8d RW |
559 | struct pci_dev *pdev = to_pci_dev(dev); |
560 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
561 | ||
562 | return i915_drm_thaw(drm_dev); | |
cbda12d7 ZW |
563 | } |
564 | ||
84b79f8d | 565 | static int i915_pm_poweroff(struct device *dev) |
cbda12d7 | 566 | { |
84b79f8d RW |
567 | struct pci_dev *pdev = to_pci_dev(dev); |
568 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
84b79f8d | 569 | |
61caf87c | 570 | return i915_drm_freeze(drm_dev); |
cbda12d7 ZW |
571 | } |
572 | ||
b4b78d12 | 573 | static const struct dev_pm_ops i915_pm_ops = { |
cbda12d7 ZW |
574 | .suspend = i915_pm_suspend, |
575 | .resume = i915_pm_resume, | |
576 | .freeze = i915_pm_freeze, | |
577 | .thaw = i915_pm_thaw, | |
578 | .poweroff = i915_pm_poweroff, | |
84b79f8d | 579 | .restore = i915_pm_resume, |
cbda12d7 ZW |
580 | }; |
581 | ||
de151cf6 JB |
582 | static struct vm_operations_struct i915_gem_vm_ops = { |
583 | .fault = i915_gem_fault, | |
ab00b3e5 JB |
584 | .open = drm_gem_vm_open, |
585 | .close = drm_gem_vm_close, | |
de151cf6 JB |
586 | }; |
587 | ||
1da177e4 | 588 | static struct drm_driver driver = { |
792d2b9a DA |
589 | /* don't use mtrr's here, the Xserver or user space app should |
590 | * deal with them for intel hardware. | |
591 | */ | |
673a394b EA |
592 | .driver_features = |
593 | DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/ | |
594 | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM, | |
22eae947 | 595 | .load = i915_driver_load, |
ba8bbcf6 | 596 | .unload = i915_driver_unload, |
673a394b | 597 | .open = i915_driver_open, |
22eae947 DA |
598 | .lastclose = i915_driver_lastclose, |
599 | .preclose = i915_driver_preclose, | |
673a394b | 600 | .postclose = i915_driver_postclose, |
d8e29209 RW |
601 | |
602 | /* Used in place of i915_pm_ops for non-DRIVER_MODESET */ | |
603 | .suspend = i915_suspend, | |
604 | .resume = i915_resume, | |
605 | ||
cda17380 | 606 | .device_is_agp = i915_driver_device_is_agp, |
0a3e67a4 JB |
607 | .enable_vblank = i915_enable_vblank, |
608 | .disable_vblank = i915_disable_vblank, | |
1da177e4 LT |
609 | .irq_preinstall = i915_driver_irq_preinstall, |
610 | .irq_postinstall = i915_driver_irq_postinstall, | |
611 | .irq_uninstall = i915_driver_irq_uninstall, | |
612 | .irq_handler = i915_driver_irq_handler, | |
613 | .reclaim_buffers = drm_core_reclaim_buffers, | |
7c1c2871 DA |
614 | .master_create = i915_master_create, |
615 | .master_destroy = i915_master_destroy, | |
955b12de | 616 | #if defined(CONFIG_DEBUG_FS) |
27c202ad BG |
617 | .debugfs_init = i915_debugfs_init, |
618 | .debugfs_cleanup = i915_debugfs_cleanup, | |
955b12de | 619 | #endif |
673a394b EA |
620 | .gem_init_object = i915_gem_init_object, |
621 | .gem_free_object = i915_gem_free_object, | |
de151cf6 | 622 | .gem_vm_ops = &i915_gem_vm_ops, |
1da177e4 LT |
623 | .ioctls = i915_ioctls, |
624 | .fops = { | |
b5e89ed5 DA |
625 | .owner = THIS_MODULE, |
626 | .open = drm_open, | |
627 | .release = drm_release, | |
ed8b6704 | 628 | .unlocked_ioctl = drm_ioctl, |
de151cf6 | 629 | .mmap = drm_gem_mmap, |
b5e89ed5 DA |
630 | .poll = drm_poll, |
631 | .fasync = drm_fasync, | |
c9a9c5e0 | 632 | .read = drm_read, |
8ca7c1df | 633 | #ifdef CONFIG_COMPAT |
b5e89ed5 | 634 | .compat_ioctl = i915_compat_ioctl, |
8ca7c1df | 635 | #endif |
dc880abe | 636 | .llseek = noop_llseek, |
22eae947 DA |
637 | }, |
638 | ||
1da177e4 | 639 | .pci_driver = { |
22eae947 DA |
640 | .name = DRIVER_NAME, |
641 | .id_table = pciidlist, | |
112b715e KH |
642 | .probe = i915_pci_probe, |
643 | .remove = i915_pci_remove, | |
cbda12d7 | 644 | .driver.pm = &i915_pm_ops, |
22eae947 | 645 | }, |
bc5f4523 | 646 | |
22eae947 DA |
647 | .name = DRIVER_NAME, |
648 | .desc = DRIVER_DESC, | |
649 | .date = DRIVER_DATE, | |
650 | .major = DRIVER_MAJOR, | |
651 | .minor = DRIVER_MINOR, | |
652 | .patchlevel = DRIVER_PATCHLEVEL, | |
1da177e4 LT |
653 | }; |
654 | ||
655 | static int __init i915_init(void) | |
656 | { | |
1f7a6e37 ZW |
657 | if (!intel_agp_enabled) { |
658 | DRM_ERROR("drm/i915 can't work without intel_agp module!\n"); | |
659 | return -ENODEV; | |
660 | } | |
661 | ||
1da177e4 | 662 | driver.num_ioctls = i915_max_ioctl; |
79e53945 | 663 | |
31169714 CW |
664 | i915_gem_shrinker_init(); |
665 | ||
79e53945 JB |
666 | /* |
667 | * If CONFIG_DRM_I915_KMS is set, default to KMS unless | |
668 | * explicitly disabled with the module pararmeter. | |
669 | * | |
670 | * Otherwise, just follow the parameter (defaulting to off). | |
671 | * | |
672 | * Allow optional vga_text_mode_force boot option to override | |
673 | * the default behavior. | |
674 | */ | |
675 | #if defined(CONFIG_DRM_I915_KMS) | |
676 | if (i915_modeset != 0) | |
677 | driver.driver_features |= DRIVER_MODESET; | |
678 | #endif | |
679 | if (i915_modeset == 1) | |
680 | driver.driver_features |= DRIVER_MODESET; | |
681 | ||
682 | #ifdef CONFIG_VGA_CONSOLE | |
683 | if (vgacon_text_force() && i915_modeset == -1) | |
684 | driver.driver_features &= ~DRIVER_MODESET; | |
685 | #endif | |
686 | ||
f97108d1 JB |
687 | if (!(driver.driver_features & DRIVER_MODESET)) { |
688 | driver.suspend = i915_suspend; | |
689 | driver.resume = i915_resume; | |
690 | } | |
691 | ||
1da177e4 LT |
692 | return drm_init(&driver); |
693 | } | |
694 | ||
695 | static void __exit i915_exit(void) | |
696 | { | |
31169714 | 697 | i915_gem_shrinker_exit(); |
1da177e4 LT |
698 | drm_exit(&driver); |
699 | } | |
700 | ||
701 | module_init(i915_init); | |
702 | module_exit(i915_exit); | |
703 | ||
b5e89ed5 DA |
704 | MODULE_AUTHOR(DRIVER_AUTHOR); |
705 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1da177e4 | 706 | MODULE_LICENSE("GPL and additional rights"); |