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[mirror_ubuntu-zesty-kernel.git] / drivers / gpu / drm / i915 / i915_drv.c
CommitLineData
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 40static int i915_modeset = -1;
79e53945
JB
41module_param_named(modeset, i915_modeset, int, 0400);
42
43unsigned int i915_fbpercrtc = 0;
44module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
1da177e4 45
652c393a 46unsigned int i915_powersave = 1;
0aa99277 47module_param_named(powersave, i915_powersave, int, 0600);
652c393a 48
33814341
JB
49unsigned int i915_lvds_downclock = 0;
50module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
51
112b715e 52static struct drm_driver driver;
1f7a6e37 53extern 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 64static 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 69static 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 74static 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 80static 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 85static 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 89static 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 95static 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 99static 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 106static 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 112static const struct intel_device_info intel_i965gm_info = {
a6c45cf0 113 .gen = 4, .is_crestline = 1,
e3c4e5dd 114 .is_mobile = 1, .has_fbc = 1, .has_hotplug = 1,
31578148 115 .has_overlay = 1,
a6c45cf0 116 .supports_tv = 1,
cfdf1fa2
KH
117};
118
9a7e8492 119static 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 125static 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 131static const struct intel_device_info intel_gm45_info = {
a6c45cf0 132 .gen = 4, .is_g4x = 1,
e3c4e5dd 133 .is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 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 139static 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 145static 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 151static const struct intel_device_info intel_ironlake_m_info = {
f00a3ddf 152 .gen = 5, .is_mobile = 1,
e3c4e5dd 153 .need_gfx_hws = 1, .has_hotplug = 1,
16c59ef3 154 .has_fbc = 0, /* disabled due to buggy hardware */
92f49d9c 155 .has_bsd_ring = 1,
cfdf1fa2
KH
156};
157
9a7e8492 158static 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 165static 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,
9c04f015 168 .has_fbc = 1,
881f47b6 169 .has_bsd_ring = 1,
549f7365 170 .has_blt_ring = 1,
a13e4093
EA
171};
172
6103da0d
CW
173static const struct pci_device_id pciidlist[] = { /* aka */
174 INTEL_VGA_DEVICE(0x3577, &intel_i830_info), /* I830_M */
175 INTEL_VGA_DEVICE(0x2562, &intel_845g_info), /* 845_G */
176 INTEL_VGA_DEVICE(0x3582, &intel_i85x_info), /* I855_GM */
5ce8ba7c 177 INTEL_VGA_DEVICE(0x358e, &intel_i85x_info),
6103da0d
CW
178 INTEL_VGA_DEVICE(0x2572, &intel_i865g_info), /* I865_G */
179 INTEL_VGA_DEVICE(0x2582, &intel_i915g_info), /* I915_G */
180 INTEL_VGA_DEVICE(0x258a, &intel_i915g_info), /* E7221_G */
181 INTEL_VGA_DEVICE(0x2592, &intel_i915gm_info), /* I915_GM */
182 INTEL_VGA_DEVICE(0x2772, &intel_i945g_info), /* I945_G */
183 INTEL_VGA_DEVICE(0x27a2, &intel_i945gm_info), /* I945_GM */
184 INTEL_VGA_DEVICE(0x27ae, &intel_i945gm_info), /* I945_GME */
185 INTEL_VGA_DEVICE(0x2972, &intel_i965g_info), /* I946_GZ */
186 INTEL_VGA_DEVICE(0x2982, &intel_i965g_info), /* G35_G */
187 INTEL_VGA_DEVICE(0x2992, &intel_i965g_info), /* I965_Q */
188 INTEL_VGA_DEVICE(0x29a2, &intel_i965g_info), /* I965_G */
189 INTEL_VGA_DEVICE(0x29b2, &intel_g33_info), /* Q35_G */
190 INTEL_VGA_DEVICE(0x29c2, &intel_g33_info), /* G33_G */
191 INTEL_VGA_DEVICE(0x29d2, &intel_g33_info), /* Q33_G */
192 INTEL_VGA_DEVICE(0x2a02, &intel_i965gm_info), /* I965_GM */
193 INTEL_VGA_DEVICE(0x2a12, &intel_i965gm_info), /* I965_GME */
194 INTEL_VGA_DEVICE(0x2a42, &intel_gm45_info), /* GM45_G */
195 INTEL_VGA_DEVICE(0x2e02, &intel_g45_info), /* IGD_E_G */
196 INTEL_VGA_DEVICE(0x2e12, &intel_g45_info), /* Q45_G */
197 INTEL_VGA_DEVICE(0x2e22, &intel_g45_info), /* G45_G */
198 INTEL_VGA_DEVICE(0x2e32, &intel_g45_info), /* G41_G */
199 INTEL_VGA_DEVICE(0x2e42, &intel_g45_info), /* B43_G */
41a51428 200 INTEL_VGA_DEVICE(0x2e92, &intel_g45_info), /* B43_G.1 */
cfdf1fa2
KH
201 INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
202 INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
203 INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
204 INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info),
f6e450a6 205 INTEL_VGA_DEVICE(0x0102, &intel_sandybridge_d_info),
85540480
ZW
206 INTEL_VGA_DEVICE(0x0112, &intel_sandybridge_d_info),
207 INTEL_VGA_DEVICE(0x0122, &intel_sandybridge_d_info),
a13e4093 208 INTEL_VGA_DEVICE(0x0106, &intel_sandybridge_m_info),
85540480 209 INTEL_VGA_DEVICE(0x0116, &intel_sandybridge_m_info),
4fefe435 210 INTEL_VGA_DEVICE(0x0126, &intel_sandybridge_m_info),
85540480 211 INTEL_VGA_DEVICE(0x010A, &intel_sandybridge_d_info),
49ae35f2 212 {0, 0, 0}
1da177e4
LT
213};
214
79e53945
JB
215#if defined(CONFIG_DRM_I915_KMS)
216MODULE_DEVICE_TABLE(pci, pciidlist);
217#endif
218
3bad0781
ZW
219#define INTEL_PCH_DEVICE_ID_MASK 0xff00
220#define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
221
222void intel_detect_pch (struct drm_device *dev)
223{
224 struct drm_i915_private *dev_priv = dev->dev_private;
225 struct pci_dev *pch;
226
227 /*
228 * The reason to probe ISA bridge instead of Dev31:Fun0 is to
229 * make graphics device passthrough work easy for VMM, that only
230 * need to expose ISA bridge to let driver know the real hardware
231 * underneath. This is a requirement from virtualization team.
232 */
233 pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL);
234 if (pch) {
235 if (pch->vendor == PCI_VENDOR_ID_INTEL) {
236 int id;
237 id = pch->device & INTEL_PCH_DEVICE_ID_MASK;
238
239 if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) {
240 dev_priv->pch_type = PCH_CPT;
241 DRM_DEBUG_KMS("Found CougarPoint PCH\n");
242 }
243 }
244 pci_dev_put(pch);
245 }
246}
247
eb43f4af
CW
248void __gen6_force_wake_get(struct drm_i915_private *dev_priv)
249{
250 int count;
251
252 count = 0;
253 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
254 udelay(10);
255
256 I915_WRITE_NOTRACE(FORCEWAKE, 1);
257 POSTING_READ(FORCEWAKE);
258
259 count = 0;
260 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1) == 0)
261 udelay(10);
262}
263
264void __gen6_force_wake_put(struct drm_i915_private *dev_priv)
265{
266 I915_WRITE_NOTRACE(FORCEWAKE, 0);
267 POSTING_READ(FORCEWAKE);
268}
269
84b79f8d 270static int i915_drm_freeze(struct drm_device *dev)
ba8bbcf6 271{
61caf87c
RW
272 struct drm_i915_private *dev_priv = dev->dev_private;
273
ba8bbcf6 274 pci_save_state(dev->pdev);
ba8bbcf6 275
5669fcac 276 /* If KMS is active, we do the leavevt stuff here */
226485e9 277 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
84b79f8d
RW
278 int error = i915_gem_idle(dev);
279 if (error) {
226485e9 280 dev_err(&dev->pdev->dev,
84b79f8d
RW
281 "GEM idle failed, resume might fail\n");
282 return error;
283 }
226485e9 284 drm_irq_uninstall(dev);
5669fcac
JB
285 }
286
9e06dd39
JB
287 i915_save_state(dev);
288
44834a67 289 intel_opregion_fini(dev);
8ee1c3db 290
84b79f8d
RW
291 /* Modeset on resume, not lid events */
292 dev_priv->modeset_on_lid = 0;
61caf87c
RW
293
294 return 0;
84b79f8d
RW
295}
296
6a9ee8af 297int i915_suspend(struct drm_device *dev, pm_message_t state)
84b79f8d
RW
298{
299 int error;
300
301 if (!dev || !dev->dev_private) {
302 DRM_ERROR("dev: %p\n", dev);
303 DRM_ERROR("DRM not initialized, aborting suspend.\n");
304 return -ENODEV;
305 }
306
307 if (state.event == PM_EVENT_PRETHAW)
308 return 0;
309
6eecba33
CW
310 drm_kms_helper_poll_disable(dev);
311
84b79f8d
RW
312 error = i915_drm_freeze(dev);
313 if (error)
314 return error;
315
b932ccb5
DA
316 if (state.event == PM_EVENT_SUSPEND) {
317 /* Shut down the device */
318 pci_disable_device(dev->pdev);
319 pci_set_power_state(dev->pdev, PCI_D3hot);
320 }
ba8bbcf6
JB
321
322 return 0;
323}
324
84b79f8d 325static int i915_drm_thaw(struct drm_device *dev)
ba8bbcf6 326{
5669fcac 327 struct drm_i915_private *dev_priv = dev->dev_private;
84b79f8d 328 int error = 0;
8ee1c3db 329
d1c3b177
CW
330 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
331 mutex_lock(&dev->struct_mutex);
332 i915_gem_restore_gtt_mappings(dev);
333 mutex_unlock(&dev->struct_mutex);
334 }
335
61caf87c 336 i915_restore_state(dev);
44834a67 337 intel_opregion_setup(dev);
61caf87c 338
5669fcac
JB
339 /* KMS EnterVT equivalent */
340 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
341 mutex_lock(&dev->struct_mutex);
342 dev_priv->mm.suspended = 0;
343
84b79f8d 344 error = i915_gem_init_ringbuffer(dev);
5669fcac 345 mutex_unlock(&dev->struct_mutex);
226485e9
JB
346
347 drm_irq_install(dev);
84b79f8d 348
354ff967
ZY
349 /* Resume the modeset for every activated CRTC */
350 drm_helper_resume_force_mode(dev);
351 }
5669fcac 352
44834a67
CW
353 intel_opregion_init(dev);
354
c9354c85 355 dev_priv->modeset_on_lid = 0;
06891e27 356
84b79f8d
RW
357 return error;
358}
359
6a9ee8af 360int i915_resume(struct drm_device *dev)
84b79f8d 361{
6eecba33
CW
362 int ret;
363
84b79f8d
RW
364 if (pci_enable_device(dev->pdev))
365 return -EIO;
366
367 pci_set_master(dev->pdev);
368
6eecba33
CW
369 ret = i915_drm_thaw(dev);
370 if (ret)
371 return ret;
372
373 drm_kms_helper_poll_enable(dev);
374 return 0;
ba8bbcf6
JB
375}
376
dc96e9b8
CW
377static int i8xx_do_reset(struct drm_device *dev, u8 flags)
378{
379 struct drm_i915_private *dev_priv = dev->dev_private;
380
381 if (IS_I85X(dev))
382 return -ENODEV;
383
384 I915_WRITE(D_STATE, I915_READ(D_STATE) | DSTATE_GFX_RESET_I830);
385 POSTING_READ(D_STATE);
386
387 if (IS_I830(dev) || IS_845G(dev)) {
388 I915_WRITE(DEBUG_RESET_I830,
389 DEBUG_RESET_DISPLAY |
390 DEBUG_RESET_RENDER |
391 DEBUG_RESET_FULL);
392 POSTING_READ(DEBUG_RESET_I830);
393 msleep(1);
394
395 I915_WRITE(DEBUG_RESET_I830, 0);
396 POSTING_READ(DEBUG_RESET_I830);
397 }
398
399 msleep(1);
400
401 I915_WRITE(D_STATE, I915_READ(D_STATE) & ~DSTATE_GFX_RESET_I830);
402 POSTING_READ(D_STATE);
403
404 return 0;
405}
406
f49f0586
KG
407static int i965_reset_complete(struct drm_device *dev)
408{
409 u8 gdrst;
eeccdcac 410 pci_read_config_byte(dev->pdev, I965_GDRST, &gdrst);
f49f0586
KG
411 return gdrst & 0x1;
412}
413
0573ed4a
KG
414static int i965_do_reset(struct drm_device *dev, u8 flags)
415{
416 u8 gdrst;
417
ae681d96
CW
418 /*
419 * Set the domains we want to reset (GRDOM/bits 2 and 3) as
420 * well as the reset bit (GR/bit 0). Setting the GR bit
421 * triggers the reset; when done, the hardware will clear it.
422 */
0573ed4a
KG
423 pci_read_config_byte(dev->pdev, I965_GDRST, &gdrst);
424 pci_write_config_byte(dev->pdev, I965_GDRST, gdrst | flags | 0x1);
425
426 return wait_for(i965_reset_complete(dev), 500);
427}
428
429static int ironlake_do_reset(struct drm_device *dev, u8 flags)
430{
431 struct drm_i915_private *dev_priv = dev->dev_private;
432 u32 gdrst = I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR);
433 I915_WRITE(MCHBAR_MIRROR_BASE + ILK_GDSR, gdrst | flags | 0x1);
434 return wait_for(I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR) & 0x1, 500);
ba8bbcf6
JB
435}
436
cff458c2
EA
437static int gen6_do_reset(struct drm_device *dev, u8 flags)
438{
439 struct drm_i915_private *dev_priv = dev->dev_private;
440
441 I915_WRITE(GEN6_GDRST, GEN6_GRDOM_FULL);
442 return wait_for((I915_READ(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0, 500);
443}
444
11ed50ec
BG
445/**
446 * i965_reset - reset chip after a hang
447 * @dev: drm device to reset
448 * @flags: reset domains
449 *
450 * Reset the chip. Useful if a hang is detected. Returns zero on successful
451 * reset or otherwise an error code.
452 *
453 * Procedure is fairly simple:
454 * - reset the chip using the reset reg
455 * - re-init context state
456 * - re-init hardware status page
457 * - re-init ring buffer
458 * - re-init interrupt state
459 * - re-init display
460 */
f803aa55 461int i915_reset(struct drm_device *dev, u8 flags)
11ed50ec
BG
462{
463 drm_i915_private_t *dev_priv = dev->dev_private;
11ed50ec
BG
464 /*
465 * We really should only reset the display subsystem if we actually
466 * need to
467 */
468 bool need_display = true;
0573ed4a 469 int ret;
11ed50ec 470
340479aa
CW
471 if (!mutex_trylock(&dev->struct_mutex))
472 return -EBUSY;
11ed50ec 473
069efc1d 474 i915_gem_reset(dev);
77f01230 475
f803aa55 476 ret = -ENODEV;
ae681d96
CW
477 if (get_seconds() - dev_priv->last_gpu_reset < 5) {
478 DRM_ERROR("GPU hanging too fast, declaring wedged!\n");
479 } else switch (INTEL_INFO(dev)->gen) {
cff458c2
EA
480 case 6:
481 ret = gen6_do_reset(dev, flags);
482 break;
f803aa55 483 case 5:
0573ed4a 484 ret = ironlake_do_reset(dev, flags);
f803aa55
CW
485 break;
486 case 4:
0573ed4a 487 ret = i965_do_reset(dev, flags);
f803aa55 488 break;
dc96e9b8
CW
489 case 2:
490 ret = i8xx_do_reset(dev, flags);
491 break;
f803aa55 492 }
ae681d96 493 dev_priv->last_gpu_reset = get_seconds();
0573ed4a 494 if (ret) {
f803aa55 495 DRM_ERROR("Failed to reset chip.\n");
f953c935 496 mutex_unlock(&dev->struct_mutex);
f803aa55 497 return ret;
11ed50ec
BG
498 }
499
500 /* Ok, now get things going again... */
501
502 /*
503 * Everything depends on having the GTT running, so we need to start
504 * there. Fortunately we don't need to do this unless we reset the
505 * chip at a PCI level.
506 *
507 * Next we need to restore the context, but we don't use those
508 * yet either...
509 *
510 * Ring buffer needs to be re-initialized in the KMS case, or if X
511 * was running at the time of the reset (i.e. we weren't VT
512 * switched away).
513 */
514 if (drm_core_check_feature(dev, DRIVER_MODESET) ||
8187a2b7 515 !dev_priv->mm.suspended) {
11ed50ec 516 dev_priv->mm.suspended = 0;
75a6898f 517
1ec14ad3 518 dev_priv->ring[RCS].init(&dev_priv->ring[RCS]);
75a6898f 519 if (HAS_BSD(dev))
1ec14ad3 520 dev_priv->ring[VCS].init(&dev_priv->ring[VCS]);
75a6898f 521 if (HAS_BLT(dev))
1ec14ad3 522 dev_priv->ring[BCS].init(&dev_priv->ring[BCS]);
75a6898f 523
11ed50ec
BG
524 mutex_unlock(&dev->struct_mutex);
525 drm_irq_uninstall(dev);
526 drm_irq_install(dev);
527 mutex_lock(&dev->struct_mutex);
528 }
529
9fd98141
CW
530 mutex_unlock(&dev->struct_mutex);
531
11ed50ec 532 /*
9fd98141
CW
533 * Perform a full modeset as on later generations, e.g. Ironlake, we may
534 * need to retrain the display link and cannot just restore the register
535 * values.
11ed50ec 536 */
9fd98141
CW
537 if (need_display) {
538 mutex_lock(&dev->mode_config.mutex);
539 drm_helper_resume_force_mode(dev);
540 mutex_unlock(&dev->mode_config.mutex);
541 }
11ed50ec 542
11ed50ec
BG
543 return 0;
544}
545
546
112b715e
KH
547static int __devinit
548i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
549{
dcdb1674 550 return drm_get_pci_dev(pdev, ent, &driver);
112b715e
KH
551}
552
553static void
554i915_pci_remove(struct pci_dev *pdev)
555{
556 struct drm_device *dev = pci_get_drvdata(pdev);
557
558 drm_put_dev(dev);
559}
560
84b79f8d 561static int i915_pm_suspend(struct device *dev)
112b715e 562{
84b79f8d
RW
563 struct pci_dev *pdev = to_pci_dev(dev);
564 struct drm_device *drm_dev = pci_get_drvdata(pdev);
565 int error;
112b715e 566
84b79f8d
RW
567 if (!drm_dev || !drm_dev->dev_private) {
568 dev_err(dev, "DRM not initialized, aborting suspend.\n");
569 return -ENODEV;
570 }
112b715e 571
84b79f8d
RW
572 error = i915_drm_freeze(drm_dev);
573 if (error)
574 return error;
112b715e 575
84b79f8d
RW
576 pci_disable_device(pdev);
577 pci_set_power_state(pdev, PCI_D3hot);
cbda12d7 578
84b79f8d 579 return 0;
cbda12d7
ZW
580}
581
84b79f8d 582static int i915_pm_resume(struct device *dev)
cbda12d7 583{
84b79f8d
RW
584 struct pci_dev *pdev = to_pci_dev(dev);
585 struct drm_device *drm_dev = pci_get_drvdata(pdev);
586
587 return i915_resume(drm_dev);
cbda12d7
ZW
588}
589
84b79f8d 590static int i915_pm_freeze(struct device *dev)
cbda12d7 591{
84b79f8d
RW
592 struct pci_dev *pdev = to_pci_dev(dev);
593 struct drm_device *drm_dev = pci_get_drvdata(pdev);
594
595 if (!drm_dev || !drm_dev->dev_private) {
596 dev_err(dev, "DRM not initialized, aborting suspend.\n");
597 return -ENODEV;
598 }
599
600 return i915_drm_freeze(drm_dev);
cbda12d7
ZW
601}
602
84b79f8d 603static int i915_pm_thaw(struct device *dev)
cbda12d7 604{
84b79f8d
RW
605 struct pci_dev *pdev = to_pci_dev(dev);
606 struct drm_device *drm_dev = pci_get_drvdata(pdev);
607
608 return i915_drm_thaw(drm_dev);
cbda12d7
ZW
609}
610
84b79f8d 611static int i915_pm_poweroff(struct device *dev)
cbda12d7 612{
84b79f8d
RW
613 struct pci_dev *pdev = to_pci_dev(dev);
614 struct drm_device *drm_dev = pci_get_drvdata(pdev);
84b79f8d 615
61caf87c 616 return i915_drm_freeze(drm_dev);
cbda12d7
ZW
617}
618
b4b78d12 619static const struct dev_pm_ops i915_pm_ops = {
cbda12d7
ZW
620 .suspend = i915_pm_suspend,
621 .resume = i915_pm_resume,
622 .freeze = i915_pm_freeze,
623 .thaw = i915_pm_thaw,
624 .poweroff = i915_pm_poweroff,
84b79f8d 625 .restore = i915_pm_resume,
cbda12d7
ZW
626};
627
de151cf6
JB
628static struct vm_operations_struct i915_gem_vm_ops = {
629 .fault = i915_gem_fault,
ab00b3e5
JB
630 .open = drm_gem_vm_open,
631 .close = drm_gem_vm_close,
de151cf6
JB
632};
633
1da177e4 634static struct drm_driver driver = {
792d2b9a
DA
635 /* don't use mtrr's here, the Xserver or user space app should
636 * deal with them for intel hardware.
637 */
673a394b
EA
638 .driver_features =
639 DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
640 DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
22eae947 641 .load = i915_driver_load,
ba8bbcf6 642 .unload = i915_driver_unload,
673a394b 643 .open = i915_driver_open,
22eae947
DA
644 .lastclose = i915_driver_lastclose,
645 .preclose = i915_driver_preclose,
673a394b 646 .postclose = i915_driver_postclose,
d8e29209
RW
647
648 /* Used in place of i915_pm_ops for non-DRIVER_MODESET */
649 .suspend = i915_suspend,
650 .resume = i915_resume,
651
cda17380 652 .device_is_agp = i915_driver_device_is_agp,
0a3e67a4
JB
653 .enable_vblank = i915_enable_vblank,
654 .disable_vblank = i915_disable_vblank,
0af7e4df
MK
655 .get_vblank_timestamp = i915_get_vblank_timestamp,
656 .get_scanout_position = i915_get_crtc_scanoutpos,
1da177e4
LT
657 .irq_preinstall = i915_driver_irq_preinstall,
658 .irq_postinstall = i915_driver_irq_postinstall,
659 .irq_uninstall = i915_driver_irq_uninstall,
660 .irq_handler = i915_driver_irq_handler,
661 .reclaim_buffers = drm_core_reclaim_buffers,
7c1c2871
DA
662 .master_create = i915_master_create,
663 .master_destroy = i915_master_destroy,
955b12de 664#if defined(CONFIG_DEBUG_FS)
27c202ad
BG
665 .debugfs_init = i915_debugfs_init,
666 .debugfs_cleanup = i915_debugfs_cleanup,
955b12de 667#endif
673a394b
EA
668 .gem_init_object = i915_gem_init_object,
669 .gem_free_object = i915_gem_free_object,
de151cf6 670 .gem_vm_ops = &i915_gem_vm_ops,
1da177e4
LT
671 .ioctls = i915_ioctls,
672 .fops = {
b5e89ed5
DA
673 .owner = THIS_MODULE,
674 .open = drm_open,
675 .release = drm_release,
ed8b6704 676 .unlocked_ioctl = drm_ioctl,
de151cf6 677 .mmap = drm_gem_mmap,
b5e89ed5
DA
678 .poll = drm_poll,
679 .fasync = drm_fasync,
c9a9c5e0 680 .read = drm_read,
8ca7c1df 681#ifdef CONFIG_COMPAT
b5e89ed5 682 .compat_ioctl = i915_compat_ioctl,
8ca7c1df 683#endif
dc880abe 684 .llseek = noop_llseek,
22eae947
DA
685 },
686
1da177e4 687 .pci_driver = {
22eae947
DA
688 .name = DRIVER_NAME,
689 .id_table = pciidlist,
112b715e
KH
690 .probe = i915_pci_probe,
691 .remove = i915_pci_remove,
cbda12d7 692 .driver.pm = &i915_pm_ops,
22eae947 693 },
bc5f4523 694
22eae947
DA
695 .name = DRIVER_NAME,
696 .desc = DRIVER_DESC,
697 .date = DRIVER_DATE,
698 .major = DRIVER_MAJOR,
699 .minor = DRIVER_MINOR,
700 .patchlevel = DRIVER_PATCHLEVEL,
1da177e4
LT
701};
702
703static int __init i915_init(void)
704{
1f7a6e37
ZW
705 if (!intel_agp_enabled) {
706 DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
707 return -ENODEV;
708 }
709
1da177e4 710 driver.num_ioctls = i915_max_ioctl;
79e53945
JB
711
712 /*
713 * If CONFIG_DRM_I915_KMS is set, default to KMS unless
714 * explicitly disabled with the module pararmeter.
715 *
716 * Otherwise, just follow the parameter (defaulting to off).
717 *
718 * Allow optional vga_text_mode_force boot option to override
719 * the default behavior.
720 */
721#if defined(CONFIG_DRM_I915_KMS)
722 if (i915_modeset != 0)
723 driver.driver_features |= DRIVER_MODESET;
724#endif
725 if (i915_modeset == 1)
726 driver.driver_features |= DRIVER_MODESET;
727
728#ifdef CONFIG_VGA_CONSOLE
729 if (vgacon_text_force() && i915_modeset == -1)
730 driver.driver_features &= ~DRIVER_MODESET;
731#endif
732
1da177e4
LT
733 return drm_init(&driver);
734}
735
736static void __exit i915_exit(void)
737{
738 drm_exit(&driver);
739}
740
741module_init(i915_init);
742module_exit(i915_exit);
743
b5e89ed5
DA
744MODULE_AUTHOR(DRIVER_AUTHOR);
745MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4 746MODULE_LICENSE("GPL and additional rights");