1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
2 /**************************************************************************
3  *
4  * Copyright 2009-2023 VMware, Inc., Palo Alto, CA., USA
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
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13  *
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15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
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27 
28 #ifndef _VMWGFX_DRV_H_
29 #define _VMWGFX_DRV_H_
30 
31 #include <linux/suspend.h>
32 #include <linux/sync_file.h>
33 #include <linux/hashtable.h>
34 
35 #include <drm/drm_auth.h>
36 #include <drm/drm_device.h>
37 #include <drm/drm_file.h>
38 #include <drm/drm_rect.h>
39 
40 #include <drm/ttm/ttm_execbuf_util.h>
41 #include <drm/ttm/ttm_tt.h>
42 #include <drm/ttm/ttm_placement.h>
43 #include <drm/ttm/ttm_bo.h>
44 
45 #include "ttm_object.h"
46 
47 #include "vmwgfx_fence.h"
48 #include "vmwgfx_reg.h"
49 #include "vmwgfx_validation.h"
50 
51 /*
52  * FIXME: vmwgfx_drm.h needs to be last due to dependencies.
53  * uapi headers should not depend on header files outside uapi/.
54  */
55 #include <drm/vmwgfx_drm.h>
56 
57 
58 #define VMWGFX_DRIVER_NAME "vmwgfx"
59 #define VMWGFX_DRIVER_DATE "20211206"
60 #define VMWGFX_DRIVER_MAJOR 2
61 #define VMWGFX_DRIVER_MINOR 20
62 #define VMWGFX_DRIVER_PATCHLEVEL 0
63 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
64 #define VMWGFX_MAX_DISPLAYS 16
65 #define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768
66 
67 #define VMWGFX_MIN_INITIAL_WIDTH 1280
68 #define VMWGFX_MIN_INITIAL_HEIGHT 800
69 
70 #define VMWGFX_PCI_ID_SVGA2              0x0405
71 #define VMWGFX_PCI_ID_SVGA3              0x0406
72 
73 /*
74  * This has to match get_count_order(SVGA_IRQFLAG_MAX)
75  */
76 #define VMWGFX_MAX_NUM_IRQS 6
77 
78 /*
79  * Perhaps we should have sysfs entries for these.
80  */
81 #define VMWGFX_NUM_GB_CONTEXT 256
82 #define VMWGFX_NUM_GB_SHADER 20000
83 #define VMWGFX_NUM_GB_SURFACE 32768
84 #define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS
85 #define VMWGFX_NUM_DXCONTEXT 256
86 #define VMWGFX_NUM_DXQUERY 512
87 #define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\
88 			VMWGFX_NUM_GB_SHADER +\
89 			VMWGFX_NUM_GB_SURFACE +\
90 			VMWGFX_NUM_GB_SCREEN_TARGET)
91 
92 #define VMW_PL_GMR      (TTM_PL_PRIV + 0)
93 #define VMW_PL_MOB      (TTM_PL_PRIV + 1)
94 #define VMW_PL_SYSTEM   (TTM_PL_PRIV + 2)
95 
96 #define VMW_RES_CONTEXT ttm_driver_type0
97 #define VMW_RES_SURFACE ttm_driver_type1
98 #define VMW_RES_STREAM ttm_driver_type2
99 #define VMW_RES_FENCE ttm_driver_type3
100 #define VMW_RES_SHADER ttm_driver_type4
101 #define VMW_RES_HT_ORDER 12
102 
103 #define VMW_CURSOR_SNOOP_FORMAT SVGA3D_A8R8G8B8
104 #define VMW_CURSOR_SNOOP_WIDTH 64
105 #define VMW_CURSOR_SNOOP_HEIGHT 64
106 
107 #define MKSSTAT_CAPACITY_LOG2 5U
108 #define MKSSTAT_CAPACITY (1U << MKSSTAT_CAPACITY_LOG2)
109 
110 struct vmw_fpriv {
111 	struct ttm_object_file *tfile;
112 	bool gb_aware; /* user-space is guest-backed aware */
113 };
114 
115 struct vmwgfx_hash_item {
116 	struct hlist_node head;
117 	unsigned long key;
118 };
119 
120 
121 /**
122  * struct vmw_validate_buffer - Carries validation info about buffers.
123  *
124  * @base: Validation info for TTM.
125  * @hash: Hash entry for quick lookup of the TTM buffer object.
126  *
127  * This structure contains also driver private validation info
128  * on top of the info needed by TTM.
129  */
130 struct vmw_validate_buffer {
131 	struct ttm_validate_buffer base;
132 	struct vmwgfx_hash_item hash;
133 	bool validate_as_mob;
134 };
135 
136 struct vmw_res_func;
137 
138 
139 /**
140  * struct vmw-resource - base class for hardware resources
141  *
142  * @kref: For refcounting.
143  * @dev_priv: Pointer to the device private for this resource. Immutable.
144  * @id: Device id. Protected by @dev_priv::resource_lock.
145  * @guest_memory_size: Guest memory buffer size. Immutable.
146  * @res_dirty: Resource contains data not yet in the guest memory buffer.
147  * Protected by resource reserved.
148  * @guest_memory_dirty: Guest memory buffer contains data not yet in the HW
149  * resource. Protected by resource reserved.
150  * @coherent: Emulate coherency by tracking vm accesses.
151  * @guest_memory_bo: The guest memory buffer if any. Protected by resource
152  * reserved.
153  * @guest_memory_offset: Offset into the guest memory buffer if any. Protected
154  * by resource reserved. Note that only a few resource types can have a
155  * @guest_memory_offset different from zero.
156  * @pin_count: The pin count for this resource. A pinned resource has a
157  * pin-count greater than zero. It is not on the resource LRU lists and its
158  * guest memory buffer is pinned. Hence it can't be evicted.
159  * @func: Method vtable for this resource. Immutable.
160  * @mob_node; Node for the MOB guest memory rbtree. Protected by
161  * @guest_memory_bo reserved.
162  * @lru_head: List head for the LRU list. Protected by @dev_priv::resource_lock.
163  * @binding_head: List head for the context binding list. Protected by
164  * the @dev_priv::binding_mutex
165  * @res_free: The resource destructor.
166  * @hw_destroy: Callback to destroy the resource on the device, as part of
167  * resource destruction.
168  */
169 struct vmw_bo;
170 struct vmw_bo;
171 struct vmw_resource_dirty;
172 struct vmw_resource {
173 	struct kref kref;
174 	struct vmw_private *dev_priv;
175 	int id;
176 	u32 used_prio;
177 	unsigned long guest_memory_size;
178 	u32 res_dirty : 1;
179 	u32 guest_memory_dirty : 1;
180 	u32 coherent : 1;
181 	struct vmw_bo *guest_memory_bo;
182 	unsigned long guest_memory_offset;
183 	unsigned long pin_count;
184 	const struct vmw_res_func *func;
185 	struct rb_node mob_node;
186 	struct list_head lru_head;
187 	struct list_head binding_head;
188 	struct vmw_resource_dirty *dirty;
189 	void (*res_free) (struct vmw_resource *res);
190 	void (*hw_destroy) (struct vmw_resource *res);
191 };
192 
193 
194 /*
195  * Resources that are managed using ioctls.
196  */
197 enum vmw_res_type {
198 	vmw_res_context,
199 	vmw_res_surface,
200 	vmw_res_stream,
201 	vmw_res_shader,
202 	vmw_res_dx_context,
203 	vmw_res_cotable,
204 	vmw_res_view,
205 	vmw_res_streamoutput,
206 	vmw_res_max
207 };
208 
209 /*
210  * Resources that are managed using command streams.
211  */
212 enum vmw_cmdbuf_res_type {
213 	vmw_cmdbuf_res_shader,
214 	vmw_cmdbuf_res_view,
215 	vmw_cmdbuf_res_streamoutput
216 };
217 
218 struct vmw_cmdbuf_res_manager;
219 
220 struct vmw_cursor_snooper {
221 	size_t age;
222 	uint32_t *image;
223 };
224 
225 struct vmw_framebuffer;
226 struct vmw_surface_offset;
227 
228 /**
229  * struct vmw_surface_metadata - Metadata describing a surface.
230  *
231  * @flags: Device flags.
232  * @format: Surface SVGA3D_x format.
233  * @mip_levels: Mip level for each face. For GB first index is used only.
234  * @multisample_count: Sample count.
235  * @multisample_pattern: Sample patterns.
236  * @quality_level: Quality level.
237  * @autogen_filter: Filter for automatically generated mipmaps.
238  * @array_size: Number of array elements for a 1D/2D texture. For cubemap
239                 texture number of faces * array_size. This should be 0 for pre
240 		SM4 device.
241  * @buffer_byte_stride: Buffer byte stride.
242  * @num_sizes: Size of @sizes. For GB surface this should always be 1.
243  * @base_size: Surface dimension.
244  * @sizes: Array representing mip sizes. Legacy only.
245  * @scanout: Whether this surface will be used for scanout.
246  *
247  * This tracks metadata for both legacy and guest backed surface.
248  */
249 struct vmw_surface_metadata {
250 	u64 flags;
251 	u32 format;
252 	u32 mip_levels[DRM_VMW_MAX_SURFACE_FACES];
253 	u32 multisample_count;
254 	u32 multisample_pattern;
255 	u32 quality_level;
256 	u32 autogen_filter;
257 	u32 array_size;
258 	u32 num_sizes;
259 	u32 buffer_byte_stride;
260 	struct drm_vmw_size base_size;
261 	struct drm_vmw_size *sizes;
262 	bool scanout;
263 };
264 
265 /**
266  * struct vmw_surface: Resource structure for a surface.
267  *
268  * @res: The base resource for this surface.
269  * @metadata: Metadata for this surface resource.
270  * @snooper: Cursor data. Legacy surface only.
271  * @offsets: Legacy surface only.
272  * @view_list: List of views bound to this surface.
273  */
274 struct vmw_surface {
275 	struct vmw_resource res;
276 	struct vmw_surface_metadata metadata;
277 	struct vmw_cursor_snooper snooper;
278 	struct vmw_surface_offset *offsets;
279 	struct list_head view_list;
280 };
281 
282 struct vmw_fifo_state {
283 	unsigned long reserved_size;
284 	u32 *dynamic_buffer;
285 	u32 *static_buffer;
286 	unsigned long static_buffer_size;
287 	bool using_bounce_buffer;
288 	uint32_t capabilities;
289 	struct mutex fifo_mutex;
290 	struct rw_semaphore rwsem;
291 };
292 
293 /**
294  * struct vmw_res_cache_entry - resource information cache entry
295  * @handle: User-space handle of a resource.
296  * @res: Non-ref-counted pointer to the resource.
297  * @valid_handle: Whether the @handle member is valid.
298  * @valid: Whether the entry is valid, which also implies that the execbuf
299  * code holds a reference to the resource, and it's placed on the
300  * validation list.
301  *
302  * Used to avoid frequent repeated user-space handle lookups of the
303  * same resource.
304  */
305 struct vmw_res_cache_entry {
306 	uint32_t handle;
307 	struct vmw_resource *res;
308 	void *private;
309 	unsigned short valid_handle;
310 	unsigned short valid;
311 };
312 
313 /**
314  * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
315  */
316 enum vmw_dma_map_mode {
317 	vmw_dma_alloc_coherent, /* Use TTM coherent pages */
318 	vmw_dma_map_populate,   /* Unmap from DMA just after unpopulate */
319 	vmw_dma_map_bind,       /* Unmap from DMA just before unbind */
320 	vmw_dma_map_max
321 };
322 
323 /**
324  * struct vmw_sg_table - Scatter/gather table for binding, with additional
325  * device-specific information.
326  *
327  * @sgt: Pointer to a struct sg_table with binding information
328  * @num_regions: Number of regions with device-address contiguous pages
329  */
330 struct vmw_sg_table {
331 	enum vmw_dma_map_mode mode;
332 	struct page **pages;
333 	const dma_addr_t *addrs;
334 	struct sg_table *sgt;
335 	unsigned long num_pages;
336 };
337 
338 /**
339  * struct vmw_piter - Page iterator that iterates over a list of pages
340  * and DMA addresses that could be either a scatter-gather list or
341  * arrays
342  *
343  * @pages: Array of page pointers to the pages.
344  * @addrs: DMA addresses to the pages if coherent pages are used.
345  * @iter: Scatter-gather page iterator. Current position in SG list.
346  * @i: Current position in arrays.
347  * @num_pages: Number of pages total.
348  * @next: Function to advance the iterator. Returns false if past the list
349  * of pages, true otherwise.
350  * @dma_address: Function to return the DMA address of the current page.
351  */
352 struct vmw_piter {
353 	struct page **pages;
354 	const dma_addr_t *addrs;
355 	struct sg_dma_page_iter iter;
356 	unsigned long i;
357 	unsigned long num_pages;
358 	bool (*next)(struct vmw_piter *);
359 	dma_addr_t (*dma_address)(struct vmw_piter *);
360 };
361 
362 
363 struct vmw_ttm_tt {
364 	struct ttm_tt dma_ttm;
365 	struct vmw_private *dev_priv;
366 	int gmr_id;
367 	struct vmw_mob *mob;
368 	int mem_type;
369 	struct sg_table sgt;
370 	struct vmw_sg_table vsgt;
371 	bool mapped;
372 	bool bound;
373 };
374 
375 /*
376  * enum vmw_display_unit_type - Describes the display unit
377  */
378 enum vmw_display_unit_type {
379 	vmw_du_invalid = 0,
380 	vmw_du_legacy,
381 	vmw_du_screen_object,
382 	vmw_du_screen_target,
383 	vmw_du_max
384 };
385 
386 struct vmw_validation_context;
387 struct vmw_ctx_validation_info;
388 
389 /**
390  * struct vmw_sw_context - Command submission context
391  * @res_ht: Pointer hash table used to find validation duplicates
392  * @kernel: Whether the command buffer originates from kernel code rather
393  * than from user-space
394  * @fp: If @kernel is false, points to the file of the client. Otherwise
395  * NULL
396  * @cmd_bounce: Command bounce buffer used for command validation before
397  * copying to fifo space
398  * @cmd_bounce_size: Current command bounce buffer size
399  * @cur_query_bo: Current buffer object used as query result buffer
400  * @bo_relocations: List of buffer object relocations
401  * @res_relocations: List of resource relocations
402  * @buf_start: Pointer to start of memory where command validation takes
403  * place
404  * @res_cache: Cache of recently looked up resources
405  * @last_query_ctx: Last context that submitted a query
406  * @needs_post_query_barrier: Whether a query barrier is needed after
407  * command submission
408  * @staged_bindings: Cached per-context binding tracker
409  * @staged_bindings_inuse: Whether the cached per-context binding tracker
410  * is in use
411  * @staged_cmd_res: List of staged command buffer managed resources in this
412  * command buffer
413  * @ctx_list: List of context resources referenced in this command buffer
414  * @dx_ctx_node: Validation metadata of the current DX context
415  * @dx_query_mob: The MOB used for DX queries
416  * @dx_query_ctx: The DX context used for the last DX query
417  * @man: Pointer to the command buffer managed resource manager
418  * @ctx: The validation context
419  */
420 struct vmw_sw_context{
421 	DECLARE_HASHTABLE(res_ht, VMW_RES_HT_ORDER);
422 	bool kernel;
423 	struct vmw_fpriv *fp;
424 	struct drm_file *filp;
425 	uint32_t *cmd_bounce;
426 	uint32_t cmd_bounce_size;
427 	struct vmw_bo *cur_query_bo;
428 	struct list_head bo_relocations;
429 	struct list_head res_relocations;
430 	uint32_t *buf_start;
431 	struct vmw_res_cache_entry res_cache[vmw_res_max];
432 	struct vmw_resource *last_query_ctx;
433 	bool needs_post_query_barrier;
434 	struct vmw_ctx_binding_state *staged_bindings;
435 	bool staged_bindings_inuse;
436 	struct list_head staged_cmd_res;
437 	struct list_head ctx_list;
438 	struct vmw_ctx_validation_info *dx_ctx_node;
439 	struct vmw_bo *dx_query_mob;
440 	struct vmw_resource *dx_query_ctx;
441 	struct vmw_cmdbuf_res_manager *man;
442 	struct vmw_validation_context *ctx;
443 };
444 
445 struct vmw_legacy_display;
446 struct vmw_overlay;
447 
448 struct vmw_vga_topology_state {
449 	uint32_t width;
450 	uint32_t height;
451 	uint32_t primary;
452 	uint32_t pos_x;
453 	uint32_t pos_y;
454 };
455 
456 
457 /*
458  * struct vmw_otable - Guest Memory OBject table metadata
459  *
460  * @size:           Size of the table (page-aligned).
461  * @page_table:     Pointer to a struct vmw_mob holding the page table.
462  */
463 struct vmw_otable {
464 	unsigned long size;
465 	struct vmw_mob *page_table;
466 	bool enabled;
467 };
468 
469 struct vmw_otable_batch {
470 	unsigned num_otables;
471 	struct vmw_otable *otables;
472 	struct vmw_resource *context;
473 	struct vmw_bo *otable_bo;
474 };
475 
476 enum {
477 	VMW_IRQTHREAD_FENCE,
478 	VMW_IRQTHREAD_CMDBUF,
479 	VMW_IRQTHREAD_MAX
480 };
481 
482 /**
483  * enum vmw_sm_type - Graphics context capability supported by device.
484  * @VMW_SM_LEGACY: Pre DX context.
485  * @VMW_SM_4: Context support upto SM4.
486  * @VMW_SM_4_1: Context support upto SM4_1.
487  * @VMW_SM_5: Context support up to SM5.
488  * @VMW_SM_5_1X: Adds support for sm5_1 and gl43 extensions.
489  * @VMW_SM_MAX: Should be the last.
490  */
491 enum vmw_sm_type {
492 	VMW_SM_LEGACY = 0,
493 	VMW_SM_4,
494 	VMW_SM_4_1,
495 	VMW_SM_5,
496 	VMW_SM_5_1X,
497 	VMW_SM_MAX
498 };
499 
500 struct vmw_private {
501 	struct drm_device drm;
502 	struct ttm_device bdev;
503 
504 	struct drm_vma_offset_manager vma_manager;
505 	u32 pci_id;
506 	resource_size_t io_start;
507 	resource_size_t vram_start;
508 	resource_size_t vram_size;
509 	resource_size_t max_primary_mem;
510 	u32 __iomem *rmmio;
511 	u32 *fifo_mem;
512 	resource_size_t fifo_mem_size;
513 	uint32_t fb_max_width;
514 	uint32_t fb_max_height;
515 	uint32_t texture_max_width;
516 	uint32_t texture_max_height;
517 	uint32_t stdu_max_width;
518 	uint32_t stdu_max_height;
519 	uint32_t initial_width;
520 	uint32_t initial_height;
521 	uint32_t capabilities;
522 	uint32_t capabilities2;
523 	uint32_t max_gmr_ids;
524 	uint32_t max_gmr_pages;
525 	uint32_t max_mob_pages;
526 	uint32_t max_mob_size;
527 	uint32_t memory_size;
528 	bool has_gmr;
529 	bool has_mob;
530 	spinlock_t hw_lock;
531 	bool assume_16bpp;
532 	u32 irqs[VMWGFX_MAX_NUM_IRQS];
533 	u32 num_irq_vectors;
534 
535 	enum vmw_sm_type sm_type;
536 
537 	/*
538 	 * Framebuffer info.
539 	 */
540 
541 	enum vmw_display_unit_type active_display_unit;
542 	struct vmw_legacy_display *ldu_priv;
543 	struct vmw_overlay *overlay_priv;
544 	struct drm_property *hotplug_mode_update_property;
545 	struct drm_property *implicit_placement_property;
546 	spinlock_t cursor_lock;
547 	struct drm_atomic_state *suspend_state;
548 
549 	/*
550 	 * Context and surface management.
551 	 */
552 
553 	spinlock_t resource_lock;
554 	struct idr res_idr[vmw_res_max];
555 
556 	/*
557 	 * A resource manager for kernel-only surfaces and
558 	 * contexts.
559 	 */
560 
561 	struct ttm_object_device *tdev;
562 
563 	/*
564 	 * Fencing and IRQs.
565 	 */
566 
567 	atomic_t marker_seq;
568 	wait_queue_head_t fence_queue;
569 	wait_queue_head_t fifo_queue;
570 	spinlock_t waiter_lock;
571 	int fence_queue_waiters; /* Protected by waiter_lock */
572 	int goal_queue_waiters; /* Protected by waiter_lock */
573 	int cmdbuf_waiters; /* Protected by waiter_lock */
574 	int error_waiters; /* Protected by waiter_lock */
575 	int fifo_queue_waiters; /* Protected by waiter_lock */
576 	uint32_t last_read_seqno;
577 	struct vmw_fence_manager *fman;
578 	uint32_t irq_mask; /* Updates protected by waiter_lock */
579 
580 	/*
581 	 * Device state
582 	 */
583 
584 	uint32_t traces_state;
585 	uint32_t enable_state;
586 	uint32_t config_done_state;
587 
588 	/**
589 	 * Execbuf
590 	 */
591 	/**
592 	 * Protected by the cmdbuf mutex.
593 	 */
594 
595 	struct vmw_sw_context ctx;
596 	struct mutex cmdbuf_mutex;
597 	struct mutex binding_mutex;
598 
599 	/**
600 	 * PM management.
601 	 */
602 	struct notifier_block pm_nb;
603 	bool refuse_hibernation;
604 	bool suspend_locked;
605 
606 	atomic_t num_fifo_resources;
607 
608 	/*
609 	 * Query processing. These members
610 	 * are protected by the cmdbuf mutex.
611 	 */
612 
613 	struct vmw_bo *dummy_query_bo;
614 	struct vmw_bo *pinned_bo;
615 	uint32_t query_cid;
616 	uint32_t query_cid_valid;
617 	bool dummy_query_bo_pinned;
618 
619 	/*
620 	 * Surface swapping. The "surface_lru" list is protected by the
621 	 * resource lock in order to be able to destroy a surface and take
622 	 * it off the lru atomically. "used_memory_size" is currently
623 	 * protected by the cmdbuf mutex for simplicity.
624 	 */
625 
626 	struct list_head res_lru[vmw_res_max];
627 	uint32_t used_memory_size;
628 
629 	/*
630 	 * DMA mapping stuff.
631 	 */
632 	enum vmw_dma_map_mode map_mode;
633 
634 	/*
635 	 * Guest Backed stuff
636 	 */
637 	struct vmw_otable_batch otable_batch;
638 
639 	struct vmw_fifo_state *fifo;
640 	struct vmw_cmdbuf_man *cman;
641 	DECLARE_BITMAP(irqthread_pending, VMW_IRQTHREAD_MAX);
642 
643 	uint32 *devcaps;
644 
645 	/*
646 	 * mksGuestStat instance-descriptor and pid arrays
647 	 */
648 	struct page *mksstat_user_pages[MKSSTAT_CAPACITY];
649 	atomic_t mksstat_user_pids[MKSSTAT_CAPACITY];
650 
651 #if IS_ENABLED(CONFIG_DRM_VMWGFX_MKSSTATS)
652 	struct page *mksstat_kern_pages[MKSSTAT_CAPACITY];
653 	u8 mksstat_kern_top_timer[MKSSTAT_CAPACITY];
654 	atomic_t mksstat_kern_pids[MKSSTAT_CAPACITY];
655 #endif
656 };
657 
658 static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
659 {
660 	return container_of(res, struct vmw_surface, res);
661 }
662 
663 static inline struct vmw_private *vmw_priv(struct drm_device *dev)
664 {
665 	return (struct vmw_private *)dev->dev_private;
666 }
667 
668 static inline struct vmw_private *vmw_priv_from_ttm(struct ttm_device *bdev)
669 {
670 	return container_of(bdev, struct vmw_private, bdev);
671 }
672 
673 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
674 {
675 	return (struct vmw_fpriv *)file_priv->driver_priv;
676 }
677 
678 /*
679  * SVGA v3 has mmio register access and lacks fifo cmds
680  */
681 static inline bool vmw_is_svga_v3(const struct vmw_private *dev)
682 {
683 	return dev->pci_id == VMWGFX_PCI_ID_SVGA3;
684 }
685 
686 /*
687  * The locking here is fine-grained, so that it is performed once
688  * for every read- and write operation. This is of course costly, but we
689  * don't perform much register access in the timing critical paths anyway.
690  * Instead we have the extra benefit of being sure that we don't forget
691  * the hw lock around register accesses.
692  */
693 static inline void vmw_write(struct vmw_private *dev_priv,
694 			     unsigned int offset, uint32_t value)
695 {
696 	if (vmw_is_svga_v3(dev_priv)) {
697 		iowrite32(value, dev_priv->rmmio + offset);
698 	} else {
699 		spin_lock(&dev_priv->hw_lock);
700 		outl(offset, dev_priv->io_start + SVGA_INDEX_PORT);
701 		outl(value, dev_priv->io_start + SVGA_VALUE_PORT);
702 		spin_unlock(&dev_priv->hw_lock);
703 	}
704 }
705 
706 static inline uint32_t vmw_read(struct vmw_private *dev_priv,
707 				unsigned int offset)
708 {
709 	u32 val;
710 
711 	if (vmw_is_svga_v3(dev_priv)) {
712 		val = ioread32(dev_priv->rmmio + offset);
713 	} else {
714 		spin_lock(&dev_priv->hw_lock);
715 		outl(offset, dev_priv->io_start + SVGA_INDEX_PORT);
716 		val = inl(dev_priv->io_start + SVGA_VALUE_PORT);
717 		spin_unlock(&dev_priv->hw_lock);
718 	}
719 
720 	return val;
721 }
722 
723 /**
724  * has_sm4_context - Does the device support SM4 context.
725  * @dev_priv: Device private.
726  *
727  * Return: Bool value if device support SM4 context or not.
728  */
729 static inline bool has_sm4_context(const struct vmw_private *dev_priv)
730 {
731 	return (dev_priv->sm_type >= VMW_SM_4);
732 }
733 
734 /**
735  * has_sm4_1_context - Does the device support SM4_1 context.
736  * @dev_priv: Device private.
737  *
738  * Return: Bool value if device support SM4_1 context or not.
739  */
740 static inline bool has_sm4_1_context(const struct vmw_private *dev_priv)
741 {
742 	return (dev_priv->sm_type >= VMW_SM_4_1);
743 }
744 
745 /**
746  * has_sm5_context - Does the device support SM5 context.
747  * @dev_priv: Device private.
748  *
749  * Return: Bool value if device support SM5 context or not.
750  */
751 static inline bool has_sm5_context(const struct vmw_private *dev_priv)
752 {
753 	return (dev_priv->sm_type >= VMW_SM_5);
754 }
755 
756 /**
757  * has_gl43_context - Does the device support GL43 context.
758  * @dev_priv: Device private.
759  *
760  * Return: Bool value if device support SM5 context or not.
761  */
762 static inline bool has_gl43_context(const struct vmw_private *dev_priv)
763 {
764 	return (dev_priv->sm_type >= VMW_SM_5_1X);
765 }
766 
767 
768 static inline u32 vmw_max_num_uavs(struct vmw_private *dev_priv)
769 {
770 	return (has_gl43_context(dev_priv) ?
771 			SVGA3D_DX11_1_MAX_UAVIEWS : SVGA3D_MAX_UAVIEWS);
772 }
773 
774 extern void vmw_svga_enable(struct vmw_private *dev_priv);
775 extern void vmw_svga_disable(struct vmw_private *dev_priv);
776 bool vmwgfx_supported(struct vmw_private *vmw);
777 
778 
779 /**
780  * GMR utilities - vmwgfx_gmr.c
781  */
782 
783 extern int vmw_gmr_bind(struct vmw_private *dev_priv,
784 			const struct vmw_sg_table *vsgt,
785 			unsigned long num_pages,
786 			int gmr_id);
787 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
788 
789 /**
790  * Resource utilities - vmwgfx_resource.c
791  */
792 struct vmw_user_resource_conv;
793 
794 extern void vmw_resource_unreference(struct vmw_resource **p_res);
795 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
796 extern struct vmw_resource *
797 vmw_resource_reference_unless_doomed(struct vmw_resource *res);
798 extern int vmw_resource_validate(struct vmw_resource *res, bool intr,
799 				 bool dirtying);
800 extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
801 				bool no_backup);
802 extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
803 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
804 				  struct drm_file *filp,
805 				  uint32_t handle,
806 				  struct vmw_surface **out_surf,
807 				  struct vmw_bo **out_buf);
808 extern int vmw_user_resource_lookup_handle(
809 	struct vmw_private *dev_priv,
810 	struct ttm_object_file *tfile,
811 	uint32_t handle,
812 	const struct vmw_user_resource_conv *converter,
813 	struct vmw_resource **p_res);
814 
815 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
816 				  struct drm_file *file_priv);
817 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
818 				  struct drm_file *file_priv);
819 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
820 				  struct ttm_object_file *tfile,
821 				  uint32_t *inout_id,
822 				  struct vmw_resource **out);
823 extern void vmw_resource_unreserve(struct vmw_resource *res,
824 				   bool dirty_set,
825 				   bool dirty,
826 				   bool switch_guest_memory,
827 				   struct vmw_bo *new_guest_memory,
828 				   unsigned long new_guest_memory_offset);
829 extern void vmw_query_move_notify(struct ttm_buffer_object *bo,
830 				  struct ttm_resource *old_mem,
831 				  struct ttm_resource *new_mem);
832 int vmw_query_readback_all(struct vmw_bo *dx_query_mob);
833 void vmw_resource_evict_all(struct vmw_private *dev_priv);
834 void vmw_resource_unbind_list(struct vmw_bo *vbo);
835 void vmw_resource_mob_attach(struct vmw_resource *res);
836 void vmw_resource_mob_detach(struct vmw_resource *res);
837 void vmw_resource_dirty_update(struct vmw_resource *res, pgoff_t start,
838 			       pgoff_t end);
839 int vmw_resources_clean(struct vmw_bo *vbo, pgoff_t start,
840 			pgoff_t end, pgoff_t *num_prefault);
841 
842 /**
843  * vmw_resource_mob_attached - Whether a resource currently has a mob attached
844  * @res: The resource
845  *
846  * Return: true if the resource has a mob attached, false otherwise.
847  */
848 static inline bool vmw_resource_mob_attached(const struct vmw_resource *res)
849 {
850 	return !RB_EMPTY_NODE(&res->mob_node);
851 }
852 
853 /**
854  * GEM related functionality - vmwgfx_gem.c
855  */
856 struct vmw_bo_params;
857 int vmw_gem_object_create(struct vmw_private *vmw,
858 			  struct vmw_bo_params *params,
859 			  struct vmw_bo **p_vbo);
860 extern int vmw_gem_object_create_with_handle(struct vmw_private *dev_priv,
861 					     struct drm_file *filp,
862 					     uint32_t size,
863 					     uint32_t *handle,
864 					     struct vmw_bo **p_vbo);
865 extern int vmw_gem_object_create_ioctl(struct drm_device *dev, void *data,
866 				       struct drm_file *filp);
867 extern void vmw_debugfs_gem_init(struct vmw_private *vdev);
868 
869 /**
870  * Misc Ioctl functionality - vmwgfx_ioctl.c
871  */
872 
873 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
874 			      struct drm_file *file_priv);
875 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
876 				struct drm_file *file_priv);
877 extern int vmw_present_ioctl(struct drm_device *dev, void *data,
878 			     struct drm_file *file_priv);
879 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
880 				      struct drm_file *file_priv);
881 
882 /**
883  * Fifo utilities - vmwgfx_fifo.c
884  */
885 
886 extern struct vmw_fifo_state *vmw_fifo_create(struct vmw_private *dev_priv);
887 extern void vmw_fifo_destroy(struct vmw_private *dev_priv);
888 extern bool vmw_cmd_supported(struct vmw_private *vmw);
889 extern void *
890 vmw_cmd_ctx_reserve(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id);
891 extern void vmw_cmd_commit(struct vmw_private *dev_priv, uint32_t bytes);
892 extern void vmw_cmd_commit_flush(struct vmw_private *dev_priv, uint32_t bytes);
893 extern int vmw_cmd_send_fence(struct vmw_private *dev_priv, uint32_t *seqno);
894 extern bool vmw_supports_3d(struct vmw_private *dev_priv);
895 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
896 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
897 extern int vmw_cmd_emit_dummy_query(struct vmw_private *dev_priv,
898 				    uint32_t cid);
899 extern int vmw_cmd_flush(struct vmw_private *dev_priv,
900 			 bool interruptible);
901 
902 #define VMW_CMD_CTX_RESERVE(__priv, __bytes, __ctx_id)                        \
903 ({                                                                            \
904 	vmw_cmd_ctx_reserve(__priv, __bytes, __ctx_id) ? : ({                 \
905 		DRM_ERROR("FIFO reserve failed at %s for %u bytes\n",         \
906 			  __func__, (unsigned int) __bytes);                  \
907 		NULL;                                                         \
908 	});                                                                   \
909 })
910 
911 #define VMW_CMD_RESERVE(__priv, __bytes)                                     \
912 	VMW_CMD_CTX_RESERVE(__priv, __bytes, SVGA3D_INVALID_ID)
913 
914 
915 /**
916  * vmw_fifo_caps - Returns the capabilities of the FIFO command
917  * queue or 0 if fifo memory isn't present.
918  * @dev_priv: The device private context
919  */
920 static inline uint32_t vmw_fifo_caps(const struct vmw_private *dev_priv)
921 {
922 	if (!dev_priv->fifo_mem || !dev_priv->fifo)
923 		return 0;
924 	return dev_priv->fifo->capabilities;
925 }
926 
927 
928 /**
929  * vmw_is_cursor_bypass3_enabled - Returns TRUE iff Cursor Bypass 3
930  * is enabled in the FIFO.
931  * @dev_priv: The device private context
932  */
933 static inline bool
934 vmw_is_cursor_bypass3_enabled(const struct vmw_private *dev_priv)
935 {
936 	return (vmw_fifo_caps(dev_priv) & SVGA_FIFO_CAP_CURSOR_BYPASS_3) != 0;
937 }
938 
939 /**
940  * TTM buffer object driver - vmwgfx_ttm_buffer.c
941  */
942 
943 extern const size_t vmw_tt_size;
944 extern struct ttm_placement vmw_vram_placement;
945 extern struct ttm_placement vmw_vram_gmr_placement;
946 extern struct ttm_placement vmw_sys_placement;
947 extern struct ttm_device_funcs vmw_bo_driver;
948 extern const struct vmw_sg_table *
949 vmw_bo_sg_table(struct ttm_buffer_object *bo);
950 int vmw_bo_create_and_populate(struct vmw_private *dev_priv,
951 			       size_t bo_size,
952 			       u32 domain,
953 			       struct vmw_bo **bo_p);
954 
955 extern void vmw_piter_start(struct vmw_piter *viter,
956 			    const struct vmw_sg_table *vsgt,
957 			    unsigned long p_offs);
958 
959 /**
960  * vmw_piter_next - Advance the iterator one page.
961  *
962  * @viter: Pointer to the iterator to advance.
963  *
964  * Returns false if past the list of pages, true otherwise.
965  */
966 static inline bool vmw_piter_next(struct vmw_piter *viter)
967 {
968 	return viter->next(viter);
969 }
970 
971 /**
972  * vmw_piter_dma_addr - Return the DMA address of the current page.
973  *
974  * @viter: Pointer to the iterator
975  *
976  * Returns the DMA address of the page pointed to by @viter.
977  */
978 static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter)
979 {
980 	return viter->dma_address(viter);
981 }
982 
983 /**
984  * vmw_piter_page - Return a pointer to the current page.
985  *
986  * @viter: Pointer to the iterator
987  *
988  * Returns the DMA address of the page pointed to by @viter.
989  */
990 static inline struct page *vmw_piter_page(struct vmw_piter *viter)
991 {
992 	return viter->pages[viter->i];
993 }
994 
995 /**
996  * Command submission - vmwgfx_execbuf.c
997  */
998 
999 extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
1000 			     struct drm_file *file_priv);
1001 extern int vmw_execbuf_process(struct drm_file *file_priv,
1002 			       struct vmw_private *dev_priv,
1003 			       void __user *user_commands,
1004 			       void *kernel_commands,
1005 			       uint32_t command_size,
1006 			       uint64_t throttle_us,
1007 			       uint32_t dx_context_handle,
1008 			       struct drm_vmw_fence_rep __user
1009 			       *user_fence_rep,
1010 			       struct vmw_fence_obj **out_fence,
1011 			       uint32_t flags);
1012 extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
1013 					    struct vmw_fence_obj *fence);
1014 extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);
1015 
1016 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
1017 				      struct vmw_private *dev_priv,
1018 				      struct vmw_fence_obj **p_fence,
1019 				      uint32_t *p_handle);
1020 extern int vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
1021 					struct vmw_fpriv *vmw_fp,
1022 					int ret,
1023 					struct drm_vmw_fence_rep __user
1024 					*user_fence_rep,
1025 					struct vmw_fence_obj *fence,
1026 					uint32_t fence_handle,
1027 					int32_t out_fence_fd);
1028 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd);
1029 
1030 /**
1031  * IRQs and wating - vmwgfx_irq.c
1032  */
1033 
1034 extern int vmw_irq_install(struct vmw_private *dev_priv);
1035 extern void vmw_irq_uninstall(struct drm_device *dev);
1036 extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
1037 				uint32_t seqno);
1038 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
1039 			     bool lazy,
1040 			     bool fifo_idle,
1041 			     uint32_t seqno,
1042 			     bool interruptible,
1043 			     unsigned long timeout);
1044 extern void vmw_update_seqno(struct vmw_private *dev_priv);
1045 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
1046 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
1047 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
1048 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
1049 extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag,
1050 				   int *waiter_count);
1051 extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv,
1052 				      u32 flag, int *waiter_count);
1053 
1054 /**
1055  * Kernel modesetting - vmwgfx_kms.c
1056  */
1057 
1058 int vmw_kms_init(struct vmw_private *dev_priv);
1059 int vmw_kms_close(struct vmw_private *dev_priv);
1060 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1061 				struct drm_file *file_priv);
1062 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
1063 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
1064 			  struct ttm_object_file *tfile,
1065 			  struct ttm_buffer_object *bo,
1066 			  SVGA3dCmdHeader *header);
1067 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1068 		       unsigned width, unsigned height, unsigned pitch,
1069 		       unsigned bpp, unsigned depth);
1070 int vmw_kms_present(struct vmw_private *dev_priv,
1071 		    struct drm_file *file_priv,
1072 		    struct vmw_framebuffer *vfb,
1073 		    struct vmw_surface *surface,
1074 		    uint32_t sid, int32_t destX, int32_t destY,
1075 		    struct drm_vmw_rect *clips,
1076 		    uint32_t num_clips);
1077 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1078 				struct drm_file *file_priv);
1079 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
1080 int vmw_kms_suspend(struct drm_device *dev);
1081 int vmw_kms_resume(struct drm_device *dev);
1082 void vmw_kms_lost_device(struct drm_device *dev);
1083 
1084 int vmw_dumb_create(struct drm_file *file_priv,
1085 		    struct drm_device *dev,
1086 		    struct drm_mode_create_dumb *args);
1087 extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible);
1088 extern void vmw_resource_unpin(struct vmw_resource *res);
1089 extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res);
1090 
1091 /**
1092  * Overlay control - vmwgfx_overlay.c
1093  */
1094 
1095 int vmw_overlay_init(struct vmw_private *dev_priv);
1096 int vmw_overlay_close(struct vmw_private *dev_priv);
1097 int vmw_overlay_ioctl(struct drm_device *dev, void *data,
1098 		      struct drm_file *file_priv);
1099 int vmw_overlay_resume_all(struct vmw_private *dev_priv);
1100 int vmw_overlay_pause_all(struct vmw_private *dev_priv);
1101 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
1102 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
1103 int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
1104 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
1105 
1106 /**
1107  * GMR Id manager
1108  */
1109 
1110 int vmw_gmrid_man_init(struct vmw_private *dev_priv, int type);
1111 void vmw_gmrid_man_fini(struct vmw_private *dev_priv, int type);
1112 
1113 /**
1114  * System memory manager
1115  */
1116 int vmw_sys_man_init(struct vmw_private *dev_priv);
1117 void vmw_sys_man_fini(struct vmw_private *dev_priv);
1118 
1119 /**
1120  * Prime - vmwgfx_prime.c
1121  */
1122 
1123 extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
1124 extern int vmw_prime_fd_to_handle(struct drm_device *dev,
1125 				  struct drm_file *file_priv,
1126 				  int fd, u32 *handle);
1127 extern int vmw_prime_handle_to_fd(struct drm_device *dev,
1128 				  struct drm_file *file_priv,
1129 				  uint32_t handle, uint32_t flags,
1130 				  int *prime_fd);
1131 struct drm_gem_object *vmw_prime_import_sg_table(struct drm_device *dev,
1132 						 struct dma_buf_attachment *attach,
1133 						 struct sg_table *table);
1134 
1135 /*
1136  * MemoryOBject management -  vmwgfx_mob.c
1137  */
1138 struct vmw_mob;
1139 extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob,
1140 			const struct vmw_sg_table *vsgt,
1141 			unsigned long num_data_pages, int32_t mob_id);
1142 extern void vmw_mob_unbind(struct vmw_private *dev_priv,
1143 			   struct vmw_mob *mob);
1144 extern void vmw_mob_destroy(struct vmw_mob *mob);
1145 extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
1146 extern int vmw_otables_setup(struct vmw_private *dev_priv);
1147 extern void vmw_otables_takedown(struct vmw_private *dev_priv);
1148 
1149 /*
1150  * Context management - vmwgfx_context.c
1151  */
1152 
1153 extern const struct vmw_user_resource_conv *user_context_converter;
1154 
1155 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
1156 				    struct drm_file *file_priv);
1157 extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data,
1158 					     struct drm_file *file_priv);
1159 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
1160 				     struct drm_file *file_priv);
1161 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1162 extern struct vmw_cmdbuf_res_manager *
1163 vmw_context_res_man(struct vmw_resource *ctx);
1164 extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx,
1165 						SVGACOTableType cotable_type);
1166 struct vmw_ctx_binding_state;
1167 extern struct vmw_ctx_binding_state *
1168 vmw_context_binding_state(struct vmw_resource *ctx);
1169 extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx,
1170 					  bool readback);
1171 extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res,
1172 				     struct vmw_bo *mob);
1173 extern struct vmw_bo *
1174 vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res);
1175 
1176 
1177 /*
1178  * Surface management - vmwgfx_surface.c
1179  */
1180 
1181 extern const struct vmw_user_resource_conv *user_surface_converter;
1182 
1183 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
1184 				     struct drm_file *file_priv);
1185 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
1186 				    struct drm_file *file_priv);
1187 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
1188 				       struct drm_file *file_priv);
1189 extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1190 				       struct drm_file *file_priv);
1191 extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1192 					  struct drm_file *file_priv);
1193 extern int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev,
1194 					   void *data,
1195 					   struct drm_file *file_priv);
1196 extern int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev,
1197 					      void *data,
1198 					      struct drm_file *file_priv);
1199 
1200 int vmw_gb_surface_define(struct vmw_private *dev_priv,
1201 			  const struct vmw_surface_metadata *req,
1202 			  struct vmw_surface **srf_out);
1203 
1204 /*
1205  * Shader management - vmwgfx_shader.c
1206  */
1207 
1208 extern const struct vmw_user_resource_conv *user_shader_converter;
1209 
1210 extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
1211 				   struct drm_file *file_priv);
1212 extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
1213 				    struct drm_file *file_priv);
1214 extern int vmw_compat_shader_add(struct vmw_private *dev_priv,
1215 				 struct vmw_cmdbuf_res_manager *man,
1216 				 u32 user_key, const void *bytecode,
1217 				 SVGA3dShaderType shader_type,
1218 				 size_t size,
1219 				 struct list_head *list);
1220 extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man,
1221 			     u32 user_key, SVGA3dShaderType shader_type,
1222 			     struct list_head *list);
1223 extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man,
1224 			     struct vmw_resource *ctx,
1225 			     u32 user_key,
1226 			     SVGA3dShaderType shader_type,
1227 			     struct list_head *list);
1228 extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv,
1229 					     struct list_head *list,
1230 					     bool readback);
1231 
1232 extern struct vmw_resource *
1233 vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man,
1234 		  u32 user_key, SVGA3dShaderType shader_type);
1235 
1236 /*
1237  * Streamoutput management
1238  */
1239 struct vmw_resource *
1240 vmw_dx_streamoutput_lookup(struct vmw_cmdbuf_res_manager *man,
1241 			   u32 user_key);
1242 int vmw_dx_streamoutput_add(struct vmw_cmdbuf_res_manager *man,
1243 			    struct vmw_resource *ctx,
1244 			    SVGA3dStreamOutputId user_key,
1245 			    struct list_head *list);
1246 void vmw_dx_streamoutput_set_size(struct vmw_resource *res, u32 size);
1247 int vmw_dx_streamoutput_remove(struct vmw_cmdbuf_res_manager *man,
1248 			       SVGA3dStreamOutputId user_key,
1249 			       struct list_head *list);
1250 void vmw_dx_streamoutput_cotable_list_scrub(struct vmw_private *dev_priv,
1251 					    struct list_head *list,
1252 					    bool readback);
1253 
1254 /*
1255  * Command buffer managed resources - vmwgfx_cmdbuf_res.c
1256  */
1257 
1258 extern struct vmw_cmdbuf_res_manager *
1259 vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv);
1260 extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man);
1261 extern struct vmw_resource *
1262 vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man,
1263 		      enum vmw_cmdbuf_res_type res_type,
1264 		      u32 user_key);
1265 extern void vmw_cmdbuf_res_revert(struct list_head *list);
1266 extern void vmw_cmdbuf_res_commit(struct list_head *list);
1267 extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
1268 			      enum vmw_cmdbuf_res_type res_type,
1269 			      u32 user_key,
1270 			      struct vmw_resource *res,
1271 			      struct list_head *list);
1272 extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man,
1273 				 enum vmw_cmdbuf_res_type res_type,
1274 				 u32 user_key,
1275 				 struct list_head *list,
1276 				 struct vmw_resource **res);
1277 
1278 /*
1279  * COTable management - vmwgfx_cotable.c
1280  */
1281 extern const SVGACOTableType vmw_cotable_scrub_order[];
1282 extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv,
1283 					      struct vmw_resource *ctx,
1284 					      u32 type);
1285 extern int vmw_cotable_notify(struct vmw_resource *res, int id);
1286 extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback);
1287 extern void vmw_cotable_add_resource(struct vmw_resource *ctx,
1288 				     struct list_head *head);
1289 
1290 /*
1291  * Command buffer managerment vmwgfx_cmdbuf.c
1292  */
1293 struct vmw_cmdbuf_man;
1294 struct vmw_cmdbuf_header;
1295 
1296 extern struct vmw_cmdbuf_man *
1297 vmw_cmdbuf_man_create(struct vmw_private *dev_priv);
1298 extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man, size_t size);
1299 extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man);
1300 extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man);
1301 extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible,
1302 			   unsigned long timeout);
1303 extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size,
1304 				int ctx_id, bool interruptible,
1305 				struct vmw_cmdbuf_header *header);
1306 extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size,
1307 			      struct vmw_cmdbuf_header *header,
1308 			      bool flush);
1309 extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man,
1310 			      size_t size, bool interruptible,
1311 			      struct vmw_cmdbuf_header **p_header);
1312 extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header);
1313 extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man,
1314 				bool interruptible);
1315 extern void vmw_cmdbuf_irqthread(struct vmw_cmdbuf_man *man);
1316 
1317 /* CPU blit utilities - vmwgfx_blit.c */
1318 
1319 /**
1320  * struct vmw_diff_cpy - CPU blit information structure
1321  *
1322  * @rect: The output bounding box rectangle.
1323  * @line: The current line of the blit.
1324  * @line_offset: Offset of the current line segment.
1325  * @cpp: Bytes per pixel (granularity information).
1326  * @memcpy: Which memcpy function to use.
1327  */
1328 struct vmw_diff_cpy {
1329 	struct drm_rect rect;
1330 	size_t line;
1331 	size_t line_offset;
1332 	int cpp;
1333 	void (*do_cpy)(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1334 		       size_t n);
1335 };
1336 
1337 #define VMW_CPU_BLIT_INITIALIZER {	\
1338 	.do_cpy = vmw_memcpy,		\
1339 }
1340 
1341 #define VMW_CPU_BLIT_DIFF_INITIALIZER(_cpp) {	  \
1342 	.line = 0,				  \
1343 	.line_offset = 0,			  \
1344 	.rect = { .x1 = INT_MAX/2,		  \
1345 		  .y1 = INT_MAX/2,		  \
1346 		  .x2 = INT_MIN/2,		  \
1347 		  .y2 = INT_MIN/2		  \
1348 	},					  \
1349 	.cpp = _cpp,				  \
1350 	.do_cpy = vmw_diff_memcpy,		  \
1351 }
1352 
1353 void vmw_diff_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1354 		     size_t n);
1355 
1356 void vmw_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src, size_t n);
1357 
1358 int vmw_bo_cpu_blit(struct ttm_buffer_object *dst,
1359 		    u32 dst_offset, u32 dst_stride,
1360 		    struct ttm_buffer_object *src,
1361 		    u32 src_offset, u32 src_stride,
1362 		    u32 w, u32 h,
1363 		    struct vmw_diff_cpy *diff);
1364 
1365 /* Host messaging -vmwgfx_msg.c: */
1366 void vmw_disable_backdoor(void);
1367 int vmw_host_get_guestinfo(const char *guest_info_param,
1368 			   char *buffer, size_t *length);
1369 __printf(1, 2) int vmw_host_printf(const char *fmt, ...);
1370 int vmw_msg_ioctl(struct drm_device *dev, void *data,
1371 		  struct drm_file *file_priv);
1372 
1373 /* Host mksGuestStats -vmwgfx_msg.c: */
1374 int vmw_mksstat_get_kern_slot(pid_t pid, struct vmw_private *dev_priv);
1375 
1376 int vmw_mksstat_reset_ioctl(struct drm_device *dev, void *data,
1377 		      struct drm_file *file_priv);
1378 int vmw_mksstat_add_ioctl(struct drm_device *dev, void *data,
1379 		      struct drm_file *file_priv);
1380 int vmw_mksstat_remove_ioctl(struct drm_device *dev, void *data,
1381 		      struct drm_file *file_priv);
1382 int vmw_mksstat_remove_all(struct vmw_private *dev_priv);
1383 
1384 /* VMW logging */
1385 
1386 /**
1387  * VMW_DEBUG_USER - Debug output for user-space debugging.
1388  *
1389  * @fmt: printf() like format string.
1390  *
1391  * This macro is for logging user-space error and debugging messages for e.g.
1392  * command buffer execution errors due to malformed commands, invalid context,
1393  * etc.
1394  */
1395 #define VMW_DEBUG_USER(fmt, ...)                                              \
1396 	DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
1397 
1398 /* Resource dirtying - vmwgfx_page_dirty.c */
1399 void vmw_bo_dirty_scan(struct vmw_bo *vbo);
1400 int vmw_bo_dirty_add(struct vmw_bo *vbo);
1401 void vmw_bo_dirty_transfer_to_res(struct vmw_resource *res);
1402 void vmw_bo_dirty_clear_res(struct vmw_resource *res);
1403 void vmw_bo_dirty_release(struct vmw_bo *vbo);
1404 void vmw_bo_dirty_unmap(struct vmw_bo *vbo,
1405 			pgoff_t start, pgoff_t end);
1406 vm_fault_t vmw_bo_vm_fault(struct vm_fault *vmf);
1407 vm_fault_t vmw_bo_vm_mkwrite(struct vm_fault *vmf);
1408 
1409 
1410 /**
1411  * VMW_DEBUG_KMS - Debug output for kernel mode-setting
1412  *
1413  * This macro is for debugging vmwgfx mode-setting code.
1414  */
1415 #define VMW_DEBUG_KMS(fmt, ...)                                               \
1416 	DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
1417 
1418 /**
1419  * Inline helper functions
1420  */
1421 
1422 static inline void vmw_surface_unreference(struct vmw_surface **srf)
1423 {
1424 	struct vmw_surface *tmp_srf = *srf;
1425 	struct vmw_resource *res = &tmp_srf->res;
1426 	*srf = NULL;
1427 
1428 	vmw_resource_unreference(&res);
1429 }
1430 
1431 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
1432 {
1433 	(void) vmw_resource_reference(&srf->res);
1434 	return srf;
1435 }
1436 
1437 static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv)
1438 {
1439 	atomic_inc(&dev_priv->num_fifo_resources);
1440 }
1441 
1442 static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv)
1443 {
1444 	atomic_dec(&dev_priv->num_fifo_resources);
1445 }
1446 
1447 /**
1448  * vmw_fifo_mem_read - Perform a MMIO read from the fifo memory
1449  *
1450  * @fifo_reg: The fifo register to read from
1451  *
1452  * This function is intended to be equivalent to ioread32() on
1453  * memremap'd memory, but without byteswapping.
1454  */
1455 static inline u32 vmw_fifo_mem_read(struct vmw_private *vmw, uint32 fifo_reg)
1456 {
1457 	BUG_ON(vmw_is_svga_v3(vmw));
1458 	return READ_ONCE(*(vmw->fifo_mem + fifo_reg));
1459 }
1460 
1461 /**
1462  * vmw_fifo_mem_write - Perform a MMIO write to volatile memory
1463  *
1464  * @addr: The fifo register to write to
1465  *
1466  * This function is intended to be equivalent to iowrite32 on
1467  * memremap'd memory, but without byteswapping.
1468  */
1469 static inline void vmw_fifo_mem_write(struct vmw_private *vmw, u32 fifo_reg,
1470 				      u32 value)
1471 {
1472 	BUG_ON(vmw_is_svga_v3(vmw));
1473 	WRITE_ONCE(*(vmw->fifo_mem + fifo_reg), value);
1474 }
1475 
1476 static inline u32 vmw_fence_read(struct vmw_private *dev_priv)
1477 {
1478 	u32 fence;
1479 	if (vmw_is_svga_v3(dev_priv))
1480 		fence = vmw_read(dev_priv, SVGA_REG_FENCE);
1481 	else
1482 		fence = vmw_fifo_mem_read(dev_priv, SVGA_FIFO_FENCE);
1483 	return fence;
1484 }
1485 
1486 static inline void vmw_fence_write(struct vmw_private *dev_priv,
1487 				  u32 fence)
1488 {
1489 	BUG_ON(vmw_is_svga_v3(dev_priv));
1490 	vmw_fifo_mem_write(dev_priv, SVGA_FIFO_FENCE, fence);
1491 }
1492 
1493 static inline u32 vmw_irq_status_read(struct vmw_private *vmw)
1494 {
1495 	u32 status;
1496 	if (vmw_is_svga_v3(vmw))
1497 		status = vmw_read(vmw, SVGA_REG_IRQ_STATUS);
1498 	else
1499 		status = inl(vmw->io_start + SVGA_IRQSTATUS_PORT);
1500 	return status;
1501 }
1502 
1503 static inline void vmw_irq_status_write(struct vmw_private *vmw,
1504 					uint32 status)
1505 {
1506 	if (vmw_is_svga_v3(vmw))
1507 		vmw_write(vmw, SVGA_REG_IRQ_STATUS, status);
1508 	else
1509 		outl(status, vmw->io_start + SVGA_IRQSTATUS_PORT);
1510 }
1511 
1512 static inline bool vmw_has_fences(struct vmw_private *vmw)
1513 {
1514 	if ((vmw->capabilities & (SVGA_CAP_COMMAND_BUFFERS |
1515 				  SVGA_CAP_CMD_BUFFERS_2)) != 0)
1516 		return true;
1517 	return (vmw_fifo_caps(vmw) & SVGA_FIFO_CAP_FENCE) != 0;
1518 }
1519 
1520 static inline bool vmw_shadertype_is_valid(enum vmw_sm_type shader_model,
1521 					   u32 shader_type)
1522 {
1523 	SVGA3dShaderType max_allowed = SVGA3D_SHADERTYPE_PREDX_MAX;
1524 
1525 	if (shader_model >= VMW_SM_5)
1526 		max_allowed = SVGA3D_SHADERTYPE_MAX;
1527 	else if (shader_model >= VMW_SM_4)
1528 		max_allowed = SVGA3D_SHADERTYPE_DX10_MAX;
1529 	return shader_type >= SVGA3D_SHADERTYPE_MIN && shader_type < max_allowed;
1530 }
1531 
1532 #endif
1533