summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
blob: 72ec2e2b6e9787196ca1de65f28e4c6a0f090051 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
/**************************************************************************
 *
 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 **************************************************************************/

#include "drmP.h"
#include "vmwgfx_drv.h"
#include "ttm/ttm_placement.h"
#include "ttm/ttm_bo_driver.h"
#include "ttm/ttm_object.h"
#include "ttm/ttm_module.h"

#define VMWGFX_DRIVER_NAME "vmwgfx"
#define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
#define VMWGFX_CHIP_SVGAII 0
#define VMW_FB_RESERVATION 0

/**
 * Fully encoded drm commands. Might move to vmw_drm.h
 */

#define DRM_IOCTL_VMW_GET_PARAM					\
	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM,		\
		 struct drm_vmw_getparam_arg)
#define DRM_IOCTL_VMW_ALLOC_DMABUF				\
	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF,	\
		union drm_vmw_alloc_dmabuf_arg)
#define DRM_IOCTL_VMW_UNREF_DMABUF				\
	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF,	\
		struct drm_vmw_unref_dmabuf_arg)
#define DRM_IOCTL_VMW_CURSOR_BYPASS				\
	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS,	\
		 struct drm_vmw_cursor_bypass_arg)

#define DRM_IOCTL_VMW_CONTROL_STREAM				\
	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM,	\
		 struct drm_vmw_control_stream_arg)
#define DRM_IOCTL_VMW_CLAIM_STREAM				\
	DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM,	\
		 struct drm_vmw_stream_arg)
#define DRM_IOCTL_VMW_UNREF_STREAM				\
	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM,	\
		 struct drm_vmw_stream_arg)

#define DRM_IOCTL_VMW_CREATE_CONTEXT				\
	DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT,	\
		struct drm_vmw_context_arg)
#define DRM_IOCTL_VMW_UNREF_CONTEXT				\
	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT,	\
		struct drm_vmw_context_arg)
#define DRM_IOCTL_VMW_CREATE_SURFACE				\
	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE,	\
		 union drm_vmw_surface_create_arg)
#define DRM_IOCTL_VMW_UNREF_SURFACE				\
	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE,	\
		 struct drm_vmw_surface_arg)
#define DRM_IOCTL_VMW_REF_SURFACE				\
	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE,	\
		 union drm_vmw_surface_reference_arg)
#define DRM_IOCTL_VMW_EXECBUF					\
	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF,		\
		struct drm_vmw_execbuf_arg)
#define DRM_IOCTL_VMW_FIFO_DEBUG				\
	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FIFO_DEBUG,		\
		 struct drm_vmw_fifo_debug_arg)
#define DRM_IOCTL_VMW_FENCE_WAIT				\
	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT,		\
		 struct drm_vmw_fence_wait_arg)
#define DRM_IOCTL_VMW_UPDATE_LAYOUT				\
	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT,	\
		 struct drm_vmw_update_layout_arg)


/**
 * The core DRM version of this macro doesn't account for
 * DRM_COMMAND_BASE.
 */

#define VMW_IOCTL_DEF(ioctl, func, flags) \
  [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = {DRM_##ioctl, flags, func, DRM_IOCTL_##ioctl}

/**
 * Ioctl definitions.
 */

static struct drm_ioctl_desc vmw_ioctls[] = {
	VMW_IOCTL_DEF(VMW_GET_PARAM, vmw_getparam_ioctl,
		      DRM_AUTH | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_ALLOC_DMABUF, vmw_dmabuf_alloc_ioctl,
		      DRM_AUTH | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_UNREF_DMABUF, vmw_dmabuf_unref_ioctl,
		      DRM_AUTH | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_CURSOR_BYPASS,
		      vmw_kms_cursor_bypass_ioctl,
		      DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),

	VMW_IOCTL_DEF(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
		      DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
		      DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
		      DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),

	VMW_IOCTL_DEF(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
		      DRM_AUTH | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
		      DRM_AUTH | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
		      DRM_AUTH | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
		      DRM_AUTH | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
		      DRM_AUTH | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_EXECBUF, vmw_execbuf_ioctl,
		      DRM_AUTH | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_FIFO_DEBUG, vmw_fifo_debug_ioctl,
		      DRM_AUTH | DRM_ROOT_ONLY | DRM_MASTER | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_FENCE_WAIT, vmw_fence_wait_ioctl,
		      DRM_AUTH | DRM_UNLOCKED),
	VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT, vmw_kms_update_layout_ioctl,
		      DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED)
};

static struct pci_device_id vmw_pci_id_list[] = {
	{0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
	{0, 0, 0}
};

static char *vmw_devname = "vmwgfx";

static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
static void vmw_master_init(struct vmw_master *);
static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
			      void *ptr);

static void vmw_print_capabilities(uint32_t capabilities)
{
	DRM_INFO("Capabilities:\n");
	if (capabilities & SVGA_CAP_RECT_COPY)
		DRM_INFO("  Rect copy.\n");
	if (capabilities & SVGA_CAP_CURSOR)
		DRM_INFO("  Cursor.\n");
	if (capabilities & SVGA_CAP_CURSOR_BYPASS)
		DRM_INFO("  Cursor bypass.\n");
	if (capabilities & SVGA_CAP_CURSOR_BYPASS_2)
		DRM_INFO("  Cursor bypass 2.\n");
	if (capabilities & SVGA_CAP_8BIT_EMULATION)
		DRM_INFO("  8bit emulation.\n");
	if (capabilities & SVGA_CAP_ALPHA_CURSOR)
		DRM_INFO("  Alpha cursor.\n");
	if (capabilities & SVGA_CAP_3D)
		DRM_INFO("  3D.\n");
	if (capabilities & SVGA_CAP_EXTENDED_FIFO)
		DRM_INFO("  Extended Fifo.\n");
	if (capabilities & SVGA_CAP_MULTIMON)
		DRM_INFO("  Multimon.\n");
	if (capabilities & SVGA_CAP_PITCHLOCK)
		DRM_INFO("  Pitchlock.\n");
	if (capabilities & SVGA_CAP_IRQMASK)
		DRM_INFO("  Irq mask.\n");
	if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)
		DRM_INFO("  Display Topology.\n");
	if (capabilities & SVGA_CAP_GMR)
		DRM_INFO("  GMR.\n");
	if (capabilities & SVGA_CAP_TRACES)
		DRM_INFO("  Traces.\n");
}

static int vmw_request_device(struct vmw_private *dev_priv)
{
	int ret;

	vmw_kms_save_vga(dev_priv);

	ret = vmw_fifo_init(dev_priv, &dev_priv->fifo);
	if (unlikely(ret != 0)) {
		DRM_ERROR("Unable to initialize FIFO.\n");
		return ret;
	}

	return 0;
}

static void vmw_release_device(struct vmw_private *dev_priv)
{
	vmw_fifo_release(dev_priv, &dev_priv->fifo);
	vmw_kms_restore_vga(dev_priv);
}


static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
{
	struct vmw_private *dev_priv;
	int ret;
	uint32_t svga_id;

	dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
	if (unlikely(dev_priv == NULL)) {
		DRM_ERROR("Failed allocating a device private struct.\n");
		return -ENOMEM;
	}
	memset(dev_priv, 0, sizeof(*dev_priv));

	dev_priv->dev = dev;
	dev_priv->vmw_chipset = chipset;
	dev_priv->last_read_sequence = (uint32_t) -100;
	mutex_init(&dev_priv->hw_mutex);
	mutex_init(&dev_priv->cmdbuf_mutex);
	rwlock_init(&dev_priv->resource_lock);
	idr_init(&dev_priv->context_idr);
	idr_init(&dev_priv->surface_idr);
	idr_init(&dev_priv->stream_idr);
	ida_init(&dev_priv->gmr_ida);
	mutex_init(&dev_priv->init_mutex);
	init_waitqueue_head(&dev_priv->fence_queue);
	init_waitqueue_head(&dev_priv->fifo_queue);
	atomic_set(&dev_priv->fence_queue_waiters, 0);
	atomic_set(&dev_priv->fifo_queue_waiters, 0);
	INIT_LIST_HEAD(&dev_priv->gmr_lru);

	dev_priv->io_start = pci_resource_start(dev->pdev, 0);
	dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
	dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);

	mutex_lock(&dev_priv->hw_mutex);

	vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
	svga_id = vmw_read(dev_priv, SVGA_REG_ID);
	if (svga_id != SVGA_ID_2) {
		ret = -ENOSYS;
		DRM_ERROR("Unsuported SVGA ID 0x%x\n", svga_id);
		mutex_unlock(&dev_priv->hw_mutex);
		goto out_err0;
	}

	dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);

	if (dev_priv->capabilities & SVGA_CAP_GMR) {
		dev_priv->max_gmr_descriptors =
			vmw_read(dev_priv,
				 SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH);
		dev_priv->max_gmr_ids =
			vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
	}

	dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
	dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
	dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
	dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);

	mutex_unlock(&dev_priv->hw_mutex);

	vmw_print_capabilities(dev_priv->capabilities);

	if (dev_priv->capabilities & SVGA_CAP_GMR) {
		DRM_INFO("Max GMR ids is %u\n",
			 (unsigned)dev_priv->max_gmr_ids);
		DRM_INFO("Max GMR descriptors is %u\n",
			 (unsigned)dev_priv->max_gmr_descriptors);
	}
	DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
		 dev_priv->vram_start, dev_priv->vram_size / 1024);
	DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
		 dev_priv->mmio_start, dev_priv->mmio_size / 1024);

	ret = vmw_ttm_global_init(dev_priv);
	if (unlikely(ret != 0))
		goto out_err0;


	vmw_master_init(&dev_priv->fbdev_master);
	ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
	dev_priv->active_master = &dev_priv->fbdev_master;


	ret = ttm_bo_device_init(&dev_priv->bdev,
				 dev_priv->bo_global_ref.ref.object,
				 &vmw_bo_driver, VMWGFX_FILE_PAGE_OFFSET,
				 false);
	if (unlikely(ret != 0)) {
		DRM_ERROR("Failed initializing TTM buffer object driver.\n");
		goto out_err1;
	}

	ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
			     (dev_priv->vram_size >> PAGE_SHIFT));
	if (unlikely(ret != 0)) {
		DRM_ERROR("Failed initializing memory manager for VRAM.\n");
		goto out_err2;
	}

	dev_priv->mmio_mtrr = drm_mtrr_add(dev_priv->mmio_start,
					   dev_priv->mmio_size, DRM_MTRR_WC);

	dev_priv->mmio_virt = ioremap_wc(dev_priv->mmio_start,
					 dev_priv->mmio_size);

	if (unlikely(dev_priv->mmio_virt == NULL)) {
		ret = -ENOMEM;
		DRM_ERROR("Failed mapping MMIO.\n");
		goto out_err3;
	}

	/* Need mmio memory to check for fifo pitchlock cap. */
	if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
	    !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
	    !vmw_fifo_have_pitchlock(dev_priv)) {
		ret = -ENOSYS;
		DRM_ERROR("Hardware has no pitchlock\n");
		goto out_err4;
	}

	dev_priv->tdev = ttm_object_device_init
	    (dev_priv->mem_global_ref.object, 12);

	if (unlikely(dev_priv->tdev == NULL)) {
		DRM_ERROR("Unable to initialize TTM object management.\n");
		ret = -ENOMEM;
		goto out_err4;
	}

	dev->dev_private = dev_priv;

	if (!dev->devname)
		dev->devname = vmw_devname;

	if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
		ret = drm_irq_install(dev);
		if (unlikely(ret != 0)) {
			DRM_ERROR("Failed installing irq: %d\n", ret);
			goto out_no_irq;
		}
	}

	ret = pci_request_regions(dev->pdev, "vmwgfx probe");
	dev_priv->stealth = (ret != 0);
	if (dev_priv->stealth) {
		/**
		 * Request at least the mmio PCI resource.
		 */

		DRM_INFO("It appears like vesafb is loaded. "
			 "Ignore above error if any.\n");
		ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
		if (unlikely(ret != 0)) {
			DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
			goto out_no_device;
		}
	}
	ret = vmw_request_device(dev_priv);
	if (unlikely(ret != 0))
		goto out_no_device;
	vmw_kms_init(dev_priv);
	vmw_overlay_init(dev_priv);
	vmw_fb_init(dev_priv);

	dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
	register_pm_notifier(&dev_priv->pm_nb);

	DRM_INFO("%s", vmw_fifo_have_3d(dev_priv) ? "Have 3D\n" : "No 3D\n");

	return 0;

out_no_device:
	if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
		drm_irq_uninstall(dev_priv->dev);
	if (dev->devname == vmw_devname)
		dev->devname = NULL;
out_no_irq:
	ttm_object_device_release(&dev_priv->tdev);
out_err4:
	iounmap(dev_priv->mmio_virt);
out_err3:
	drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
		     dev_priv->mmio_size, DRM_MTRR_WC);
	(void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
out_err2:
	(void)ttm_bo_device_release(&dev_priv->bdev);
out_err1:
	vmw_ttm_global_release(dev_priv);
out_err0:
	ida_destroy(&dev_priv->gmr_ida);
	idr_destroy(&dev_priv->surface_idr);
	idr_destroy(&dev_priv->context_idr);
	idr_destroy(&dev_priv->stream_idr);
	kfree(dev_priv);
	return ret;
}

static int vmw_driver_unload(struct drm_device *dev)
{
	struct vmw_private *dev_priv = vmw_priv(dev);

	unregister_pm_notifier(&dev_priv->pm_nb);

	vmw_fb_close(dev_priv);
	vmw_kms_close(dev_priv);
	vmw_overlay_close(dev_priv);
	vmw_release_device(dev_priv);
	if (dev_priv->stealth)
		pci_release_region(dev->pdev, 2);
	else
		pci_release_regions(dev->pdev);

	if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
		drm_irq_uninstall(dev_priv->dev);
	if (dev->devname == vmw_devname)
		dev->devname = NULL;
	ttm_object_device_release(&dev_priv->tdev);
	iounmap(dev_priv->mmio_virt);
	drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
		     dev_priv->mmio_size, DRM_MTRR_WC);
	(void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
	(void)ttm_bo_device_release(&dev_priv->bdev);
	vmw_ttm_global_release(dev_priv);
	ida_destroy(&dev_priv->gmr_ida);
	idr_destroy(&dev_priv->surface_idr);
	idr_destroy(&dev_priv->context_idr);
	idr_destroy(&dev_priv->stream_idr);

	kfree(dev_priv);

	return 0;
}

static void vmw_postclose(struct drm_device *dev,
			 struct drm_file *file_priv)
{
	struct vmw_fpriv *vmw_fp;

	vmw_fp = vmw_fpriv(file_priv);
	ttm_object_file_release(&vmw_fp->tfile);
	if (vmw_fp->locked_master)
		drm_master_put(&vmw_fp->locked_master);
	kfree(vmw_fp);
}

static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
{
	struct vmw_private *dev_priv = vmw_priv(dev);
	struct vmw_fpriv *vmw_fp;
	int ret = -ENOMEM;

	vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
	if (unlikely(vmw_fp == NULL))
		return ret;

	vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
	if (unlikely(vmw_fp->tfile == NULL))
		goto out_no_tfile;

	file_priv->driver_priv = vmw_fp;

	if (unlikely(dev_priv->bdev.dev_mapping == NULL))
		dev_priv->bdev.dev_mapping =
			file_priv->filp->f_path.dentry->d_inode->i_mapping;

	return 0;

out_no_tfile:
	kfree(vmw_fp);
	return ret;
}

static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
			       unsigned long arg)
{
	struct drm_file *file_priv = filp->private_data;
	struct drm_device *dev = file_priv->minor->dev;
	unsigned int nr = DRM_IOCTL_NR(cmd);

	/*
	 * Do extra checking on driver private ioctls.
	 */

	if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
	    && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
		struct drm_ioctl_desc *ioctl =
		    &vmw_ioctls[nr - DRM_COMMAND_BASE];

		if (unlikely(ioctl->cmd != cmd)) {
			DRM_ERROR("Invalid command format, ioctl %d\n",
				  nr - DRM_COMMAND_BASE);
			return -EINVAL;
		}
	}

	return drm_ioctl(filp, cmd, arg);
}

static int vmw_firstopen(struct drm_device *dev)
{
	struct vmw_private *dev_priv = vmw_priv(dev);
	dev_priv->is_opened = true;

	return 0;
}

static void vmw_lastclose(struct drm_device *dev)
{
	struct vmw_private *dev_priv = vmw_priv(dev);
	struct drm_crtc *crtc;
	struct drm_mode_set set;
	int ret;

	/**
	 * Do nothing on the lastclose call from drm_unload.
	 */

	if (!dev_priv->is_opened)
		return;

	dev_priv->is_opened = false;
	set.x = 0;
	set.y = 0;
	set.fb = NULL;
	set.mode = NULL;
	set.connectors = NULL;
	set.num_connectors = 0;

	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
		set.crtc = crtc;
		ret = crtc->funcs->set_config(&set);
		WARN_ON(ret != 0);
	}

}

static void vmw_master_init(struct vmw_master *vmaster)
{
	ttm_lock_init(&vmaster->lock);
}

static int vmw_master_create(struct drm_device *dev,
			     struct drm_master *master)
{
	struct vmw_master *vmaster;

	vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
	if (unlikely(vmaster == NULL))
		return -ENOMEM;

	ttm_lock_init(&vmaster->lock);
	ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
	master->driver_priv = vmaster;

	return 0;
}

static void vmw_master_destroy(struct drm_device *dev,
			       struct drm_master *master)
{
	struct vmw_master *vmaster = vmw_master(master);

	master->driver_priv = NULL;
	kfree(vmaster);
}


static int vmw_master_set(struct drm_device *dev,
			  struct drm_file *file_priv,
			  bool from_open)
{
	struct vmw_private *dev_priv = vmw_priv(dev);
	struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
	struct vmw_master *active = dev_priv->active_master;
	struct vmw_master *vmaster = vmw_master(file_priv->master);
	int ret = 0;

	if (active) {
		BUG_ON(active != &dev_priv->fbdev_master);
		ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
		if (unlikely(ret != 0))
			goto out_no_active_lock;

		ttm_lock_set_kill(&active->lock, true, SIGTERM);
		ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
		if (unlikely(ret != 0)) {
			DRM_ERROR("Unable to clean VRAM on "
				  "master drop.\n");
		}

		dev_priv->active_master = NULL;
	}

	ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
	if (!from_open) {
		ttm_vt_unlock(&vmaster->lock);
		BUG_ON(vmw_fp->locked_master != file_priv->master);
		drm_master_put(&vmw_fp->locked_master);
	}

	dev_priv->active_master = vmaster;

	return 0;

out_no_active_lock:
	vmw_release_device(dev_priv);
	return ret;
}

static void vmw_master_drop(struct drm_device *dev,
			    struct drm_file *file_priv,
			    bool from_release)
{
	struct vmw_private *dev_priv = vmw_priv(dev);
	struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
	struct vmw_master *vmaster = vmw_master(file_priv->master);
	int ret;

	/**
	 * Make sure the master doesn't disappear while we have
	 * it locked.
	 */

	vmw_fp->locked_master = drm_master_get(file_priv->master);
	ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile);

	if (unlikely((ret != 0))) {
		DRM_ERROR("Unable to lock TTM at VT switch.\n");
		drm_master_put(&vmw_fp->locked_master);
	}

	ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);

	dev_priv->active_master = &dev_priv->fbdev_master;
	ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
	ttm_vt_unlock(&dev_priv->fbdev_master.lock);

	vmw_fb_on(dev_priv);
}


static void vmw_remove(struct pci_dev *pdev)
{
	struct drm_device *dev = pci_get_drvdata(pdev);

	drm_put_dev(dev);
}

static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
			      void *ptr)
{
	struct vmw_private *dev_priv =
		container_of(nb, struct vmw_private, pm_nb);
	struct vmw_master *vmaster = dev_priv->active_master;

	switch (val) {
	case PM_HIBERNATION_PREPARE:
	case PM_SUSPEND_PREPARE:
		ttm_suspend_lock(&vmaster->lock);

		/**
		 * This empties VRAM and unbinds all GMR bindings.
		 * Buffer contents is moved to swappable memory.
		 */
		ttm_bo_swapout_all(&dev_priv->bdev);
		break;
	case PM_POST_HIBERNATION:
	case PM_POST_SUSPEND:
		ttm_suspend_unlock(&vmaster->lock);
		break;
	case PM_RESTORE_PREPARE:
		break;
	case PM_POST_RESTORE:
		break;
	default:
		break;
	}
	return 0;
}

/**
 * These might not be needed with the virtual SVGA device.
 */

int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
	pci_save_state(pdev);
	pci_disable_device(pdev);
	pci_set_power_state(pdev, PCI_D3hot);
	return 0;
}

int vmw_pci_resume(struct pci_dev *pdev)
{
	pci_set_power_state(pdev, PCI_D0);
	pci_restore_state(pdev);
	return pci_enable_device(pdev);
}

static struct drm_driver driver = {
	.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
	DRIVER_MODESET,
	.load = vmw_driver_load,
	.unload = vmw_driver_unload,
	.firstopen = vmw_firstopen,
	.lastclose = vmw_lastclose,
	.irq_preinstall = vmw_irq_preinstall,
	.irq_postinstall = vmw_irq_postinstall,
	.irq_uninstall = vmw_irq_uninstall,
	.irq_handler = vmw_irq_handler,
	.reclaim_buffers_locked = NULL,
	.get_map_ofs = drm_core_get_map_ofs,
	.get_reg_ofs = drm_core_get_reg_ofs,
	.ioctls = vmw_ioctls,
	.num_ioctls = DRM_ARRAY_SIZE(vmw_ioctls),
	.dma_quiescent = NULL,	/*vmw_dma_quiescent, */
	.master_create = vmw_master_create,
	.master_destroy = vmw_master_destroy,
	.master_set = vmw_master_set,
	.master_drop = vmw_master_drop,
	.open = vmw_driver_open,
	.postclose = vmw_postclose,
	.fops = {
		 .owner = THIS_MODULE,
		 .open = drm_open,
		 .release = drm_release,
		 .unlocked_ioctl = vmw_unlocked_ioctl,
		 .mmap = vmw_mmap,
		 .poll = drm_poll,
		 .fasync = drm_fasync,
#if defined(CONFIG_COMPAT)
		 .compat_ioctl = drm_compat_ioctl,
#endif
		 },
	.pci_driver = {
		       .name = VMWGFX_DRIVER_NAME,
		       .id_table = vmw_pci_id_list,
		       .probe = vmw_probe,
		       .remove = vmw_remove,
		       .suspend = vmw_pci_suspend,
		       .resume = vmw_pci_resume
		       },
	.name = VMWGFX_DRIVER_NAME,
	.desc = VMWGFX_DRIVER_DESC,
	.date = VMWGFX_DRIVER_DATE,
	.major = VMWGFX_DRIVER_MAJOR,
	.minor = VMWGFX_DRIVER_MINOR,
	.patchlevel = VMWGFX_DRIVER_PATCHLEVEL
};

static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	return drm_get_pci_dev(pdev, ent, &driver);
}

static int __init vmwgfx_init(void)
{
	int ret;
	ret = drm_init(&driver);
	if (ret)
		DRM_ERROR("Failed initializing DRM.\n");
	return ret;
}

static void __exit vmwgfx_exit(void)
{
	drm_exit(&driver);
}

module_init(vmwgfx_init);
module_exit(vmwgfx_exit);

MODULE_AUTHOR("VMware Inc. and others");
MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
MODULE_LICENSE("GPL and additional rights");