summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
blob: 1abe21758b0d7523a0b66631f615f55e0d07796a (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
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/**************************************************************************
 *
 * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA
 *
 * 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.
 *
 **************************************************************************/

#ifndef _VMWGFX_DRV_H_
#define _VMWGFX_DRV_H_

#include "vmwgfx_reg.h"
#include <drm/drmP.h>
#include <drm/vmwgfx_drm.h>
#include <drm/drm_hashtab.h>
#include <drm/drm_auth.h>
#include <linux/suspend.h>
#include <drm/ttm/ttm_bo_driver.h>
#include <drm/ttm/ttm_object.h>
#include <drm/ttm/ttm_lock.h>
#include <drm/ttm/ttm_execbuf_util.h>
#include <drm/ttm/ttm_module.h>
#include "vmwgfx_fence.h"
#include <linux/sync_file.h>

#define VMWGFX_DRIVER_NAME "vmwgfx"
#define VMWGFX_DRIVER_DATE "20180704"
#define VMWGFX_DRIVER_MAJOR 2
#define VMWGFX_DRIVER_MINOR 15
#define VMWGFX_DRIVER_PATCHLEVEL 0
#define VMWGFX_FILE_PAGE_OFFSET 0x00100000
#define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
#define VMWGFX_MAX_RELOCATIONS 2048
#define VMWGFX_MAX_VALIDATIONS 2048
#define VMWGFX_MAX_DISPLAYS 16
#define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768
#define VMWGFX_ENABLE_SCREEN_TARGET_OTABLE 1

/*
 * Perhaps we should have sysfs entries for these.
 */
#define VMWGFX_NUM_GB_CONTEXT 256
#define VMWGFX_NUM_GB_SHADER 20000
#define VMWGFX_NUM_GB_SURFACE 32768
#define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS
#define VMWGFX_NUM_DXCONTEXT 256
#define VMWGFX_NUM_DXQUERY 512
#define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\
			VMWGFX_NUM_GB_SHADER +\
			VMWGFX_NUM_GB_SURFACE +\
			VMWGFX_NUM_GB_SCREEN_TARGET)

#define VMW_PL_GMR (TTM_PL_PRIV + 0)
#define VMW_PL_FLAG_GMR (TTM_PL_FLAG_PRIV << 0)
#define VMW_PL_MOB (TTM_PL_PRIV + 1)
#define VMW_PL_FLAG_MOB (TTM_PL_FLAG_PRIV << 1)

#define VMW_RES_CONTEXT ttm_driver_type0
#define VMW_RES_SURFACE ttm_driver_type1
#define VMW_RES_STREAM ttm_driver_type2
#define VMW_RES_FENCE ttm_driver_type3
#define VMW_RES_SHADER ttm_driver_type4

struct vmw_fpriv {
	struct drm_master *locked_master;
	struct ttm_object_file *tfile;
	bool gb_aware; /* user-space is guest-backed aware */
};

struct vmw_buffer_object {
	struct ttm_buffer_object base;
	struct list_head res_list;
	s32 pin_count;
	/* Not ref-counted.  Protected by binding_mutex */
	struct vmw_resource *dx_query_ctx;
	/* Protected by reservation */
	struct ttm_bo_kmap_obj map;
};

/**
 * struct vmw_validate_buffer - Carries validation info about buffers.
 *
 * @base: Validation info for TTM.
 * @hash: Hash entry for quick lookup of the TTM buffer object.
 *
 * This structure contains also driver private validation info
 * on top of the info needed by TTM.
 */
struct vmw_validate_buffer {
	struct ttm_validate_buffer base;
	struct drm_hash_item hash;
	bool validate_as_mob;
};

struct vmw_res_func;
struct vmw_resource {
	struct kref kref;
	struct vmw_private *dev_priv;
	int id;
	bool avail;
	unsigned long backup_size;
	bool res_dirty; /* Protected by backup buffer reserved */
	bool backup_dirty; /* Protected by backup buffer reserved */
	struct vmw_buffer_object *backup;
	unsigned long backup_offset;
	unsigned long pin_count; /* Protected by resource reserved */
	const struct vmw_res_func *func;
	struct list_head lru_head; /* Protected by the resource lock */
	struct list_head mob_head; /* Protected by @backup reserved */
	struct list_head binding_head; /* Protected by binding_mutex */
	void (*res_free) (struct vmw_resource *res);
	void (*hw_destroy) (struct vmw_resource *res);
};


/*
 * Resources that are managed using ioctls.
 */
enum vmw_res_type {
	vmw_res_context,
	vmw_res_surface,
	vmw_res_stream,
	vmw_res_shader,
	vmw_res_dx_context,
	vmw_res_cotable,
	vmw_res_view,
	vmw_res_max
};

/*
 * Resources that are managed using command streams.
 */
enum vmw_cmdbuf_res_type {
	vmw_cmdbuf_res_shader,
	vmw_cmdbuf_res_view
};

struct vmw_cmdbuf_res_manager;

struct vmw_cursor_snooper {
	size_t age;
	uint32_t *image;
};

struct vmw_framebuffer;
struct vmw_surface_offset;

struct vmw_surface {
	struct vmw_resource res;
	SVGA3dSurfaceAllFlags flags;
	uint32_t format;
	uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
	struct drm_vmw_size base_size;
	struct drm_vmw_size *sizes;
	uint32_t num_sizes;
	bool scanout;
	uint32_t array_size;
	/* TODO so far just a extra pointer */
	struct vmw_cursor_snooper snooper;
	struct vmw_surface_offset *offsets;
	SVGA3dTextureFilter autogen_filter;
	uint32_t multisample_count;
	struct list_head view_list;
	SVGA3dMSPattern multisample_pattern;
	SVGA3dMSQualityLevel quality_level;
};

struct vmw_marker_queue {
	struct list_head head;
	u64 lag;
	u64 lag_time;
	spinlock_t lock;
};

struct vmw_fifo_state {
	unsigned long reserved_size;
	u32 *dynamic_buffer;
	u32 *static_buffer;
	unsigned long static_buffer_size;
	bool using_bounce_buffer;
	uint32_t capabilities;
	struct mutex fifo_mutex;
	struct rw_semaphore rwsem;
	struct vmw_marker_queue marker_queue;
	bool dx;
};

struct vmw_relocation {
	SVGAMobId *mob_loc;
	SVGAGuestPtr *location;
	uint32_t index;
};

/**
 * struct vmw_res_cache_entry - resource information cache entry
 *
 * @valid: Whether the entry is valid, which also implies that the execbuf
 * code holds a reference to the resource, and it's placed on the
 * validation list.
 * @handle: User-space handle of a resource.
 * @res: Non-ref-counted pointer to the resource.
 *
 * Used to avoid frequent repeated user-space handle lookups of the
 * same resource.
 */
struct vmw_res_cache_entry {
	bool valid;
	uint32_t handle;
	struct vmw_resource *res;
	struct vmw_resource_val_node *node;
};

/**
 * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
 */
enum vmw_dma_map_mode {
	vmw_dma_phys,           /* Use physical page addresses */
	vmw_dma_alloc_coherent, /* Use TTM coherent pages */
	vmw_dma_map_populate,   /* Unmap from DMA just after unpopulate */
	vmw_dma_map_bind,       /* Unmap from DMA just before unbind */
	vmw_dma_map_max
};

/**
 * struct vmw_sg_table - Scatter/gather table for binding, with additional
 * device-specific information.
 *
 * @sgt: Pointer to a struct sg_table with binding information
 * @num_regions: Number of regions with device-address contiguous pages
 */
struct vmw_sg_table {
	enum vmw_dma_map_mode mode;
	struct page **pages;
	const dma_addr_t *addrs;
	struct sg_table *sgt;
	unsigned long num_regions;
	unsigned long num_pages;
};

/**
 * struct vmw_piter - Page iterator that iterates over a list of pages
 * and DMA addresses that could be either a scatter-gather list or
 * arrays
 *
 * @pages: Array of page pointers to the pages.
 * @addrs: DMA addresses to the pages if coherent pages are used.
 * @iter: Scatter-gather page iterator. Current position in SG list.
 * @i: Current position in arrays.
 * @num_pages: Number of pages total.
 * @next: Function to advance the iterator. Returns false if past the list
 * of pages, true otherwise.
 * @dma_address: Function to return the DMA address of the current page.
 */
struct vmw_piter {
	struct page **pages;
	const dma_addr_t *addrs;
	struct sg_page_iter iter;
	unsigned long i;
	unsigned long num_pages;
	bool (*next)(struct vmw_piter *);
	dma_addr_t (*dma_address)(struct vmw_piter *);
	struct page *(*page)(struct vmw_piter *);
};

/*
 * enum vmw_display_unit_type - Describes the display unit
 */
enum vmw_display_unit_type {
	vmw_du_invalid = 0,
	vmw_du_legacy,
	vmw_du_screen_object,
	vmw_du_screen_target
};


struct vmw_sw_context{
	struct drm_open_hash res_ht;
	bool res_ht_initialized;
	bool kernel; /**< is the called made from the kernel */
	struct vmw_fpriv *fp;
	struct list_head validate_nodes;
	struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
	uint32_t cur_reloc;
	struct vmw_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS];
	uint32_t cur_val_buf;
	uint32_t *cmd_bounce;
	uint32_t cmd_bounce_size;
	struct list_head resource_list;
	struct list_head ctx_resource_list; /* For contexts and cotables */
	struct vmw_buffer_object *cur_query_bo;
	struct list_head res_relocations;
	uint32_t *buf_start;
	struct vmw_res_cache_entry res_cache[vmw_res_max];
	struct vmw_resource *last_query_ctx;
	bool needs_post_query_barrier;
	struct vmw_resource *error_resource;
	struct vmw_ctx_binding_state *staged_bindings;
	bool staged_bindings_inuse;
	struct list_head staged_cmd_res;
	struct vmw_resource_val_node *dx_ctx_node;
	struct vmw_buffer_object *dx_query_mob;
	struct vmw_resource *dx_query_ctx;
	struct vmw_cmdbuf_res_manager *man;
};

struct vmw_legacy_display;
struct vmw_overlay;

struct vmw_master {
	struct ttm_lock lock;
};

struct vmw_vga_topology_state {
	uint32_t width;
	uint32_t height;
	uint32_t primary;
	uint32_t pos_x;
	uint32_t pos_y;
};


/*
 * struct vmw_otable - Guest Memory OBject table metadata
 *
 * @size:           Size of the table (page-aligned).
 * @page_table:     Pointer to a struct vmw_mob holding the page table.
 */
struct vmw_otable {
	unsigned long size;
	struct vmw_mob *page_table;
	bool enabled;
};

struct vmw_otable_batch {
	unsigned num_otables;
	struct vmw_otable *otables;
	struct vmw_resource *context;
	struct ttm_buffer_object *otable_bo;
};

enum {
	VMW_IRQTHREAD_FENCE,
	VMW_IRQTHREAD_CMDBUF,
	VMW_IRQTHREAD_MAX
};

struct vmw_private {
	struct ttm_bo_device bdev;
	struct ttm_bo_global_ref bo_global_ref;
	struct drm_global_reference mem_global_ref;

	struct vmw_fifo_state fifo;

	struct drm_device *dev;
	unsigned long vmw_chipset;
	unsigned int io_start;
	uint32_t vram_start;
	uint32_t vram_size;
	uint32_t prim_bb_mem;
	uint32_t mmio_start;
	uint32_t mmio_size;
	uint32_t fb_max_width;
	uint32_t fb_max_height;
	uint32_t texture_max_width;
	uint32_t texture_max_height;
	uint32_t stdu_max_width;
	uint32_t stdu_max_height;
	uint32_t initial_width;
	uint32_t initial_height;
	u32 *mmio_virt;
	uint32_t capabilities;
	uint32_t capabilities2;
	uint32_t max_gmr_ids;
	uint32_t max_gmr_pages;
	uint32_t max_mob_pages;
	uint32_t max_mob_size;
	uint32_t memory_size;
	bool has_gmr;
	bool has_mob;
	spinlock_t hw_lock;
	spinlock_t cap_lock;
	bool has_dx;
	bool assume_16bpp;
	bool has_sm4_1;

	/*
	 * VGA registers.
	 */

	struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS];
	uint32_t vga_width;
	uint32_t vga_height;
	uint32_t vga_bpp;
	uint32_t vga_bpl;
	uint32_t vga_pitchlock;

	uint32_t num_displays;

	/*
	 * Currently requested_layout_mutex is used to protect the gui
	 * positionig state in display unit. With that use case currently this
	 * mutex is only taken during layout ioctl and atomic check_modeset.
	 * Other display unit state can be protected with this mutex but that
	 * needs careful consideration.
	 */
	struct mutex requested_layout_mutex;

	/*
	 * Framebuffer info.
	 */

	void *fb_info;
	enum vmw_display_unit_type active_display_unit;
	struct vmw_legacy_display *ldu_priv;
	struct vmw_overlay *overlay_priv;
	struct drm_property *hotplug_mode_update_property;
	struct drm_property *implicit_placement_property;
	unsigned num_implicit;
	struct vmw_framebuffer *implicit_fb;
	struct mutex global_kms_state_mutex;
	spinlock_t cursor_lock;
	struct drm_atomic_state *suspend_state;

	/*
	 * Context and surface management.
	 */

	rwlock_t resource_lock;
	struct idr res_idr[vmw_res_max];
	/*
	 * Block lastclose from racing with firstopen.
	 */

	struct mutex init_mutex;

	/*
	 * A resource manager for kernel-only surfaces and
	 * contexts.
	 */

	struct ttm_object_device *tdev;

	/*
	 * Fencing and IRQs.
	 */

	atomic_t marker_seq;
	wait_queue_head_t fence_queue;
	wait_queue_head_t fifo_queue;
	spinlock_t waiter_lock;
	int fence_queue_waiters; /* Protected by waiter_lock */
	int goal_queue_waiters; /* Protected by waiter_lock */
	int cmdbuf_waiters; /* Protected by waiter_lock */
	int error_waiters; /* Protected by waiter_lock */
	int fifo_queue_waiters; /* Protected by waiter_lock */
	uint32_t last_read_seqno;
	struct vmw_fence_manager *fman;
	uint32_t irq_mask; /* Updates protected by waiter_lock */

	/*
	 * Device state
	 */

	uint32_t traces_state;
	uint32_t enable_state;
	uint32_t config_done_state;

	/**
	 * Execbuf
	 */
	/**
	 * Protected by the cmdbuf mutex.
	 */

	struct vmw_sw_context ctx;
	struct mutex cmdbuf_mutex;
	struct mutex binding_mutex;

	/**
	 * Operating mode.
	 */

	bool stealth;
	bool enable_fb;
	spinlock_t svga_lock;

	/**
	 * Master management.
	 */

	struct vmw_master *active_master;
	struct vmw_master fbdev_master;
	struct notifier_block pm_nb;
	bool refuse_hibernation;
	bool suspend_locked;

	struct mutex release_mutex;
	atomic_t num_fifo_resources;

	/*
	 * Replace this with an rwsem as soon as we have down_xx_interruptible()
	 */
	struct ttm_lock reservation_sem;

	/*
	 * Query processing. These members
	 * are protected by the cmdbuf mutex.
	 */

	struct vmw_buffer_object *dummy_query_bo;
	struct vmw_buffer_object *pinned_bo;
	uint32_t query_cid;
	uint32_t query_cid_valid;
	bool dummy_query_bo_pinned;

	/*
	 * Surface swapping. The "surface_lru" list is protected by the
	 * resource lock in order to be able to destroy a surface and take
	 * it off the lru atomically. "used_memory_size" is currently
	 * protected by the cmdbuf mutex for simplicity.
	 */

	struct list_head res_lru[vmw_res_max];
	uint32_t used_memory_size;

	/*
	 * DMA mapping stuff.
	 */
	enum vmw_dma_map_mode map_mode;

	/*
	 * Guest Backed stuff
	 */
	struct vmw_otable_batch otable_batch;

	struct vmw_cmdbuf_man *cman;
	DECLARE_BITMAP(irqthread_pending, VMW_IRQTHREAD_MAX);
};

static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
{
	return container_of(res, struct vmw_surface, res);
}

static inline struct vmw_private *vmw_priv(struct drm_device *dev)
{
	return (struct vmw_private *)dev->dev_private;
}

static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
{
	return (struct vmw_fpriv *)file_priv->driver_priv;
}

static inline struct vmw_master *vmw_master(struct drm_master *master)
{
	return (struct vmw_master *) master->driver_priv;
}

/*
 * The locking here is fine-grained, so that it is performed once
 * for every read- and write operation. This is of course costly, but we
 * don't perform much register access in the timing critical paths anyway.
 * Instead we have the extra benefit of being sure that we don't forget
 * the hw lock around register accesses.
 */
static inline void vmw_write(struct vmw_private *dev_priv,
			     unsigned int offset, uint32_t value)
{
	spin_lock(&dev_priv->hw_lock);
	outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
	outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
	spin_unlock(&dev_priv->hw_lock);
}

static inline uint32_t vmw_read(struct vmw_private *dev_priv,
				unsigned int offset)
{
	u32 val;

	spin_lock(&dev_priv->hw_lock);
	outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
	val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
	spin_unlock(&dev_priv->hw_lock);

	return val;
}

extern void vmw_svga_enable(struct vmw_private *dev_priv);
extern void vmw_svga_disable(struct vmw_private *dev_priv);


/**
 * GMR utilities - vmwgfx_gmr.c
 */

extern int vmw_gmr_bind(struct vmw_private *dev_priv,
			const struct vmw_sg_table *vsgt,
			unsigned long num_pages,
			int gmr_id);
extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);

/**
 * Resource utilities - vmwgfx_resource.c
 */
struct vmw_user_resource_conv;

extern void vmw_resource_unreference(struct vmw_resource **p_res);
extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
extern struct vmw_resource *
vmw_resource_reference_unless_doomed(struct vmw_resource *res);
extern int vmw_resource_validate(struct vmw_resource *res);
extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
				bool no_backup);
extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
				  struct ttm_object_file *tfile,
				  uint32_t handle,
				  struct vmw_surface **out_surf,
				  struct vmw_buffer_object **out_buf);
extern int vmw_user_resource_lookup_handle(
	struct vmw_private *dev_priv,
	struct ttm_object_file *tfile,
	uint32_t handle,
	const struct vmw_user_resource_conv *converter,
	struct vmw_resource **p_res);
extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
				  struct drm_file *file_priv);
extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
				  struct drm_file *file_priv);
extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
				  struct ttm_object_file *tfile,
				  uint32_t *inout_id,
				  struct vmw_resource **out);
extern void vmw_resource_unreserve(struct vmw_resource *res,
				   bool switch_backup,
				   struct vmw_buffer_object *new_backup,
				   unsigned long new_backup_offset);
extern void vmw_query_move_notify(struct ttm_buffer_object *bo,
				  struct ttm_mem_reg *mem);
extern int vmw_query_readback_all(struct vmw_buffer_object *dx_query_mob);
extern void vmw_resource_evict_all(struct vmw_private *dev_priv);
extern void vmw_resource_unbind_list(struct vmw_buffer_object *vbo);

/**
 * Buffer object helper functions - vmwgfx_bo.c
 */
extern int vmw_bo_pin_in_placement(struct vmw_private *vmw_priv,
				   struct vmw_buffer_object *bo,
				   struct ttm_placement *placement,
				   bool interruptible);
extern int vmw_bo_pin_in_vram(struct vmw_private *dev_priv,
			      struct vmw_buffer_object *buf,
			      bool interruptible);
extern int vmw_bo_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
				     struct vmw_buffer_object *buf,
				     bool interruptible);
extern int vmw_bo_pin_in_start_of_vram(struct vmw_private *vmw_priv,
				       struct vmw_buffer_object *bo,
				       bool interruptible);
extern int vmw_bo_unpin(struct vmw_private *vmw_priv,
			struct vmw_buffer_object *bo,
			bool interruptible);
extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
				 SVGAGuestPtr *ptr);
extern void vmw_bo_pin_reserved(struct vmw_buffer_object *bo, bool pin);
extern void vmw_bo_bo_free(struct ttm_buffer_object *bo);
extern int vmw_bo_init(struct vmw_private *dev_priv,
		       struct vmw_buffer_object *vmw_bo,
		       size_t size, struct ttm_placement *placement,
		       bool interuptable,
		       void (*bo_free)(struct ttm_buffer_object *bo));
extern int vmw_user_bo_verify_access(struct ttm_buffer_object *bo,
				     struct ttm_object_file *tfile);
extern int vmw_user_bo_alloc(struct vmw_private *dev_priv,
			     struct ttm_object_file *tfile,
			     uint32_t size,
			     bool shareable,
			     uint32_t *handle,
			     struct vmw_buffer_object **p_dma_buf,
			     struct ttm_base_object **p_base);
extern int vmw_user_bo_reference(struct ttm_object_file *tfile,
				 struct vmw_buffer_object *dma_buf,
				 uint32_t *handle);
extern int vmw_bo_alloc_ioctl(struct drm_device *dev, void *data,
			      struct drm_file *file_priv);
extern int vmw_bo_unref_ioctl(struct drm_device *dev, void *data,
			      struct drm_file *file_priv);
extern int vmw_user_bo_synccpu_ioctl(struct drm_device *dev, void *data,
				     struct drm_file *file_priv);
extern int vmw_user_bo_lookup(struct ttm_object_file *tfile,
			      uint32_t id, struct vmw_buffer_object **out,
			      struct ttm_base_object **base);
extern void vmw_bo_fence_single(struct ttm_buffer_object *bo,
				struct vmw_fence_obj *fence);
extern void *vmw_bo_map_and_cache(struct vmw_buffer_object *vbo);
extern void vmw_bo_unmap(struct vmw_buffer_object *vbo);
extern void vmw_bo_move_notify(struct ttm_buffer_object *bo,
			       struct ttm_mem_reg *mem);
extern void vmw_bo_swap_notify(struct ttm_buffer_object *bo);

/**
 * Misc Ioctl functionality - vmwgfx_ioctl.c
 */

extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
			      struct drm_file *file_priv);
extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
extern int vmw_present_ioctl(struct drm_device *dev, void *data,
			     struct drm_file *file_priv);
extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
				      struct drm_file *file_priv);
extern __poll_t vmw_fops_poll(struct file *filp,
				  struct poll_table_struct *wait);
extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
			     size_t count, loff_t *offset);

/**
 * Fifo utilities - vmwgfx_fifo.c
 */

extern int vmw_fifo_init(struct vmw_private *dev_priv,
			 struct vmw_fifo_state *fifo);
extern void vmw_fifo_release(struct vmw_private *dev_priv,
			     struct vmw_fifo_state *fifo);
extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes);
extern void *
vmw_fifo_reserve_dx(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id);
extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
extern void vmw_fifo_commit_flush(struct vmw_private *dev_priv, uint32_t bytes);
extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
			       uint32_t *seqno);
extern void vmw_fifo_ping_host_locked(struct vmw_private *, uint32_t reason);
extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv,
				     uint32_t cid);
extern int vmw_fifo_flush(struct vmw_private *dev_priv,
			  bool interruptible);

/**
 * TTM glue - vmwgfx_ttm_glue.c
 */

extern int vmw_ttm_global_init(struct vmw_private *dev_priv);
extern void vmw_ttm_global_release(struct vmw_private *dev_priv);
extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);

/**
 * TTM buffer object driver - vmwgfx_ttm_buffer.c
 */

extern const size_t vmw_tt_size;
extern struct ttm_placement vmw_vram_placement;
extern struct ttm_placement vmw_vram_ne_placement;
extern struct ttm_placement vmw_vram_sys_placement;
extern struct ttm_placement vmw_vram_gmr_placement;
extern struct ttm_placement vmw_vram_gmr_ne_placement;
extern struct ttm_placement vmw_sys_placement;
extern struct ttm_placement vmw_sys_ne_placement;
extern struct ttm_placement vmw_evictable_placement;
extern struct ttm_placement vmw_srf_placement;
extern struct ttm_placement vmw_mob_placement;
extern struct ttm_placement vmw_mob_ne_placement;
extern struct ttm_placement vmw_nonfixed_placement;
extern struct ttm_bo_driver vmw_bo_driver;
extern int vmw_dma_quiescent(struct drm_device *dev);
extern int vmw_bo_map_dma(struct ttm_buffer_object *bo);
extern void vmw_bo_unmap_dma(struct ttm_buffer_object *bo);
extern const struct vmw_sg_table *
vmw_bo_sg_table(struct ttm_buffer_object *bo);
extern void vmw_piter_start(struct vmw_piter *viter,
			    const struct vmw_sg_table *vsgt,
			    unsigned long p_offs);

/**
 * vmw_piter_next - Advance the iterator one page.
 *
 * @viter: Pointer to the iterator to advance.
 *
 * Returns false if past the list of pages, true otherwise.
 */
static inline bool vmw_piter_next(struct vmw_piter *viter)
{
	return viter->next(viter);
}

/**
 * vmw_piter_dma_addr - Return the DMA address of the current page.
 *
 * @viter: Pointer to the iterator
 *
 * Returns the DMA address of the page pointed to by @viter.
 */
static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter)
{
	return viter->dma_address(viter);
}

/**
 * vmw_piter_page - Return a pointer to the current page.
 *
 * @viter: Pointer to the iterator
 *
 * Returns the DMA address of the page pointed to by @viter.
 */
static inline struct page *vmw_piter_page(struct vmw_piter *viter)
{
	return viter->page(viter);
}

/**
 * Command submission - vmwgfx_execbuf.c
 */

extern int vmw_execbuf_ioctl(struct drm_device *dev, unsigned long data,
			     struct drm_file *file_priv, size_t size);
extern int vmw_execbuf_process(struct drm_file *file_priv,
			       struct vmw_private *dev_priv,
			       void __user *user_commands,
			       void *kernel_commands,
			       uint32_t command_size,
			       uint64_t throttle_us,
			       uint32_t dx_context_handle,
			       struct drm_vmw_fence_rep __user
			       *user_fence_rep,
			       struct vmw_fence_obj **out_fence,
			       uint32_t flags);
extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
					    struct vmw_fence_obj *fence);
extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);

extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
				      struct vmw_private *dev_priv,
				      struct vmw_fence_obj **p_fence,
				      uint32_t *p_handle);
extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
					struct vmw_fpriv *vmw_fp,
					int ret,
					struct drm_vmw_fence_rep __user
					*user_fence_rep,
					struct vmw_fence_obj *fence,
					uint32_t fence_handle,
					int32_t out_fence_fd,
					struct sync_file *sync_file);
extern int vmw_validate_single_buffer(struct vmw_private *dev_priv,
				      struct ttm_buffer_object *bo,
				      bool interruptible,
				      bool validate_as_mob);
bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd);

/**
 * IRQs and wating - vmwgfx_irq.c
 */

extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
			  uint32_t seqno, bool interruptible,
			  unsigned long timeout);
extern int vmw_irq_install(struct drm_device *dev, int irq);
extern void vmw_irq_uninstall(struct drm_device *dev);
extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
				uint32_t seqno);
extern int vmw_fallback_wait(struct vmw_private *dev_priv,
			     bool lazy,
			     bool fifo_idle,
			     uint32_t seqno,
			     bool interruptible,
			     unsigned long timeout);
extern void vmw_update_seqno(struct vmw_private *dev_priv,
				struct vmw_fifo_state *fifo_state);
extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag,
				   int *waiter_count);
extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv,
				      u32 flag, int *waiter_count);

/**
 * Rudimentary fence-like objects currently used only for throttling -
 * vmwgfx_marker.c
 */

extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
extern int vmw_marker_push(struct vmw_marker_queue *queue,
			   uint32_t seqno);
extern int vmw_marker_pull(struct vmw_marker_queue *queue,
			   uint32_t signaled_seqno);
extern int vmw_wait_lag(struct vmw_private *dev_priv,
			struct vmw_marker_queue *queue, uint32_t us);

/**
 * Kernel framebuffer - vmwgfx_fb.c
 */

int vmw_fb_init(struct vmw_private *vmw_priv);
int vmw_fb_close(struct vmw_private *dev_priv);
int vmw_fb_off(struct vmw_private *vmw_priv);
int vmw_fb_on(struct vmw_private *vmw_priv);

/**
 * Kernel modesetting - vmwgfx_kms.c
 */

int vmw_kms_init(struct vmw_private *dev_priv);
int vmw_kms_close(struct vmw_private *dev_priv);
int vmw_kms_save_vga(struct vmw_private *vmw_priv);
int vmw_kms_restore_vga(struct vmw_private *vmw_priv);
int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
void vmw_kms_cursor_snoop(struct vmw_surface *srf,
			  struct ttm_object_file *tfile,
			  struct ttm_buffer_object *bo,
			  SVGA3dCmdHeader *header);
int vmw_kms_write_svga(struct vmw_private *vmw_priv,
		       unsigned width, unsigned height, unsigned pitch,
		       unsigned bpp, unsigned depth);
void vmw_kms_idle_workqueues(struct vmw_master *vmaster);
bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
				uint32_t pitch,
				uint32_t height);
u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe);
void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe);
int vmw_kms_present(struct vmw_private *dev_priv,
		    struct drm_file *file_priv,
		    struct vmw_framebuffer *vfb,
		    struct vmw_surface *surface,
		    uint32_t sid, int32_t destX, int32_t destY,
		    struct drm_vmw_rect *clips,
		    uint32_t num_clips);
int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
int vmw_kms_suspend(struct drm_device *dev);
int vmw_kms_resume(struct drm_device *dev);
void vmw_kms_lost_device(struct drm_device *dev);

int vmw_dumb_create(struct drm_file *file_priv,
		    struct drm_device *dev,
		    struct drm_mode_create_dumb *args);

int vmw_dumb_map_offset(struct drm_file *file_priv,
			struct drm_device *dev, uint32_t handle,
			uint64_t *offset);
int vmw_dumb_destroy(struct drm_file *file_priv,
		     struct drm_device *dev,
		     uint32_t handle);
extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible);
extern void vmw_resource_unpin(struct vmw_resource *res);
extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res);

/**
 * Overlay control - vmwgfx_overlay.c
 */

int vmw_overlay_init(struct vmw_private *dev_priv);
int vmw_overlay_close(struct vmw_private *dev_priv);
int vmw_overlay_ioctl(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
int vmw_overlay_stop_all(struct vmw_private *dev_priv);
int vmw_overlay_resume_all(struct vmw_private *dev_priv);
int vmw_overlay_pause_all(struct vmw_private *dev_priv);
int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);

/**
 * GMR Id manager
 */

extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func;

/**
 * Prime - vmwgfx_prime.c
 */

extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
extern int vmw_prime_fd_to_handle(struct drm_device *dev,
				  struct drm_file *file_priv,
				  int fd, u32 *handle);
extern int vmw_prime_handle_to_fd(struct drm_device *dev,
				  struct drm_file *file_priv,
				  uint32_t handle, uint32_t flags,
				  int *prime_fd);

/*
 * MemoryOBject management -  vmwgfx_mob.c
 */
struct vmw_mob;
extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob,
			const struct vmw_sg_table *vsgt,
			unsigned long num_data_pages, int32_t mob_id);
extern void vmw_mob_unbind(struct vmw_private *dev_priv,
			   struct vmw_mob *mob);
extern void vmw_mob_destroy(struct vmw_mob *mob);
extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
extern int vmw_otables_setup(struct vmw_private *dev_priv);
extern void vmw_otables_takedown(struct vmw_private *dev_priv);

/*
 * Context management - vmwgfx_context.c
 */

extern const struct vmw_user_resource_conv *user_context_converter;

extern int vmw_context_check(struct vmw_private *dev_priv,
			     struct ttm_object_file *tfile,
			     int id,
			     struct vmw_resource **p_res);
extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
				    struct drm_file *file_priv);
extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data,
					     struct drm_file *file_priv);
extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
				     struct drm_file *file_priv);
extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
extern struct vmw_cmdbuf_res_manager *
vmw_context_res_man(struct vmw_resource *ctx);
extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx,
						SVGACOTableType cotable_type);
extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
struct vmw_ctx_binding_state;
extern struct vmw_ctx_binding_state *
vmw_context_binding_state(struct vmw_resource *ctx);
extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx,
					  bool readback);
extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res,
				     struct vmw_buffer_object *mob);
extern struct vmw_buffer_object *
vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res);


/*
 * Surface management - vmwgfx_surface.c
 */

extern const struct vmw_user_resource_conv *user_surface_converter;

extern void vmw_surface_res_free(struct vmw_resource *res);
extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
				     struct drm_file *file_priv);
extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
				    struct drm_file *file_priv);
extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
				       struct drm_file *file_priv);
extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
				       struct drm_file *file_priv);
extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
					  struct drm_file *file_priv);
extern int vmw_surface_check(struct vmw_private *dev_priv,
			     struct ttm_object_file *tfile,
			     uint32_t handle, int *id);
extern int vmw_surface_validate(struct vmw_private *dev_priv,
				struct vmw_surface *srf);
int vmw_surface_gb_priv_define(struct drm_device *dev,
			       uint32_t user_accounting_size,
			       SVGA3dSurfaceAllFlags svga3d_flags,
			       SVGA3dSurfaceFormat format,
			       bool for_scanout,
			       uint32_t num_mip_levels,
			       uint32_t multisample_count,
			       uint32_t array_size,
			       struct drm_vmw_size size,
			       SVGA3dMSPattern multisample_pattern,
			       SVGA3dMSQualityLevel quality_level,
			       struct vmw_surface **srf_out);
extern int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev,
					   void *data,
					   struct drm_file *file_priv);
extern int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev,
					      void *data,
					      struct drm_file *file_priv);

/*
 * Shader management - vmwgfx_shader.c
 */

extern const struct vmw_user_resource_conv *user_shader_converter;

extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
				   struct drm_file *file_priv);
extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
				    struct drm_file *file_priv);
extern int vmw_compat_shader_add(struct vmw_private *dev_priv,
				 struct vmw_cmdbuf_res_manager *man,
				 u32 user_key, const void *bytecode,
				 SVGA3dShaderType shader_type,
				 size_t size,
				 struct list_head *list);
extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man,
			     u32 user_key, SVGA3dShaderType shader_type,
			     struct list_head *list);
extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man,
			     struct vmw_resource *ctx,
			     u32 user_key,
			     SVGA3dShaderType shader_type,
			     struct list_head *list);
extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv,
					     struct list_head *list,
					     bool readback);

extern struct vmw_resource *
vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man,
		  u32 user_key, SVGA3dShaderType shader_type);

/*
 * Command buffer managed resources - vmwgfx_cmdbuf_res.c
 */

extern struct vmw_cmdbuf_res_manager *
vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv);
extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man);
extern size_t vmw_cmdbuf_res_man_size(void);
extern struct vmw_resource *
vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man,
		      enum vmw_cmdbuf_res_type res_type,
		      u32 user_key);
extern void vmw_cmdbuf_res_revert(struct list_head *list);
extern void vmw_cmdbuf_res_commit(struct list_head *list);
extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
			      enum vmw_cmdbuf_res_type res_type,
			      u32 user_key,
			      struct vmw_resource *res,
			      struct list_head *list);
extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man,
				 enum vmw_cmdbuf_res_type res_type,
				 u32 user_key,
				 struct list_head *list,
				 struct vmw_resource **res);

/*
 * COTable management - vmwgfx_cotable.c
 */
extern const SVGACOTableType vmw_cotable_scrub_order[];
extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv,
					      struct vmw_resource *ctx,
					      u32 type);
extern int vmw_cotable_notify(struct vmw_resource *res, int id);
extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback);
extern void vmw_cotable_add_resource(struct vmw_resource *ctx,
				     struct list_head *head);

/*
 * Command buffer managerment vmwgfx_cmdbuf.c
 */
struct vmw_cmdbuf_man;
struct vmw_cmdbuf_header;

extern struct vmw_cmdbuf_man *
vmw_cmdbuf_man_create(struct vmw_private *dev_priv);
extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man,
				    size_t size, size_t default_size);
extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man);
extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man);
extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible,
			   unsigned long timeout);
extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size,
				int ctx_id, bool interruptible,
				struct vmw_cmdbuf_header *header);
extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size,
			      struct vmw_cmdbuf_header *header,
			      bool flush);
extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man,
			      size_t size, bool interruptible,
			      struct vmw_cmdbuf_header **p_header);
extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header);
extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man,
				bool interruptible);
extern void vmw_cmdbuf_irqthread(struct vmw_cmdbuf_man *man);

/* CPU blit utilities - vmwgfx_blit.c */

/**
 * struct vmw_diff_cpy - CPU blit information structure
 *
 * @rect: The output bounding box rectangle.
 * @line: The current line of the blit.
 * @line_offset: Offset of the current line segment.
 * @cpp: Bytes per pixel (granularity information).
 * @memcpy: Which memcpy function to use.
 */
struct vmw_diff_cpy {
	struct drm_rect rect;
	size_t line;
	size_t line_offset;
	int cpp;
	void (*do_cpy)(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
		       size_t n);
};

#define VMW_CPU_BLIT_INITIALIZER {	\
	.do_cpy = vmw_memcpy,		\
}

#define VMW_CPU_BLIT_DIFF_INITIALIZER(_cpp) {	  \
	.line = 0,				  \
	.line_offset = 0,			  \
	.rect = { .x1 = INT_MAX/2,		  \
		  .y1 = INT_MAX/2,		  \
		  .x2 = INT_MIN/2,		  \
		  .y2 = INT_MIN/2		  \
	},					  \
	.cpp = _cpp,				  \
	.do_cpy = vmw_diff_memcpy,		  \
}

void vmw_diff_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
		     size_t n);

void vmw_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src, size_t n);

int vmw_bo_cpu_blit(struct ttm_buffer_object *dst,
		    u32 dst_offset, u32 dst_stride,
		    struct ttm_buffer_object *src,
		    u32 src_offset, u32 src_stride,
		    u32 w, u32 h,
		    struct vmw_diff_cpy *diff);

/* Host messaging -vmwgfx_msg.c: */
int vmw_host_get_guestinfo(const char *guest_info_param,
			   char *buffer, size_t *length);
int vmw_host_log(const char *log);

/**
 * Inline helper functions
 */

static inline void vmw_surface_unreference(struct vmw_surface **srf)
{
	struct vmw_surface *tmp_srf = *srf;
	struct vmw_resource *res = &tmp_srf->res;
	*srf = NULL;

	vmw_resource_unreference(&res);
}

static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
{
	(void) vmw_resource_reference(&srf->res);
	return srf;
}

static inline void vmw_bo_unreference(struct vmw_buffer_object **buf)
{
	struct vmw_buffer_object *tmp_buf = *buf;

	*buf = NULL;
	if (tmp_buf != NULL) {
		struct ttm_buffer_object *bo = &tmp_buf->base;

		ttm_bo_unref(&bo);
	}
}

static inline struct vmw_buffer_object *
vmw_bo_reference(struct vmw_buffer_object *buf)
{
	if (ttm_bo_reference(&buf->base))
		return buf;
	return NULL;
}

static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
{
	return (struct ttm_mem_global *) dev_priv->mem_global_ref.object;
}

static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv)
{
	atomic_inc(&dev_priv->num_fifo_resources);
}

static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv)
{
	atomic_dec(&dev_priv->num_fifo_resources);
}

/**
 * vmw_mmio_read - Perform a MMIO read from volatile memory
 *
 * @addr: The address to read from
 *
 * This function is intended to be equivalent to ioread32() on
 * memremap'd memory, but without byteswapping.
 */
static inline u32 vmw_mmio_read(u32 *addr)
{
	return READ_ONCE(*addr);
}

/**
 * vmw_mmio_write - Perform a MMIO write to volatile memory
 *
 * @addr: The address to write to
 *
 * This function is intended to be equivalent to iowrite32 on
 * memremap'd memory, but without byteswapping.
 */
static inline void vmw_mmio_write(u32 value, u32 *addr)
{
	WRITE_ONCE(*addr, value);
}
#endif