1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
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3  *
4  * Copyright 2009-2022 VMware, Inc., Palo Alto, CA., USA
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
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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 
34 #include <drm/drm_auth.h>
35 #include <drm/drm_device.h>
36 #include <drm/drm_file.h>
37 #include <drm/drm_rect.h>
38 
39 #include <drm/ttm/ttm_bo_driver.h>
40 #include <drm/ttm/ttm_execbuf_util.h>
41 
42 #include "ttm_object.h"
43 
44 #include "vmwgfx_fence.h"
45 #include "vmwgfx_hashtab.h"
46 #include "vmwgfx_reg.h"
47 #include "vmwgfx_validation.h"
48 
49 /*
50  * FIXME: vmwgfx_drm.h needs to be last due to dependencies.
51  * uapi headers should not depend on header files outside uapi/.
52  */
53 #include <drm/vmwgfx_drm.h>
54 
55 
56 #define VMWGFX_DRIVER_NAME "vmwgfx"
57 #define VMWGFX_DRIVER_DATE "20211206"
58 #define VMWGFX_DRIVER_MAJOR 2
59 #define VMWGFX_DRIVER_MINOR 20
60 #define VMWGFX_DRIVER_PATCHLEVEL 0
61 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
62 #define VMWGFX_MAX_DISPLAYS 16
63 #define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768
64 
65 #define VMWGFX_PCI_ID_SVGA2              0x0405
66 #define VMWGFX_PCI_ID_SVGA3              0x0406
67 
68 /*
69  * This has to match get_count_order(SVGA_IRQFLAG_MAX)
70  */
71 #define VMWGFX_MAX_NUM_IRQS 6
72 
73 /*
74  * Perhaps we should have sysfs entries for these.
75  */
76 #define VMWGFX_NUM_GB_CONTEXT 256
77 #define VMWGFX_NUM_GB_SHADER 20000
78 #define VMWGFX_NUM_GB_SURFACE 32768
79 #define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS
80 #define VMWGFX_NUM_DXCONTEXT 256
81 #define VMWGFX_NUM_DXQUERY 512
82 #define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\
83 			VMWGFX_NUM_GB_SHADER +\
84 			VMWGFX_NUM_GB_SURFACE +\
85 			VMWGFX_NUM_GB_SCREEN_TARGET)
86 
87 #define VMW_PL_GMR      (TTM_PL_PRIV + 0)
88 #define VMW_PL_MOB      (TTM_PL_PRIV + 1)
89 #define VMW_PL_SYSTEM   (TTM_PL_PRIV + 2)
90 
91 #define VMW_RES_CONTEXT ttm_driver_type0
92 #define VMW_RES_SURFACE ttm_driver_type1
93 #define VMW_RES_STREAM ttm_driver_type2
94 #define VMW_RES_FENCE ttm_driver_type3
95 #define VMW_RES_SHADER ttm_driver_type4
96 
97 #define MKSSTAT_CAPACITY_LOG2 5U
98 #define MKSSTAT_CAPACITY (1U << MKSSTAT_CAPACITY_LOG2)
99 
100 struct vmw_fpriv {
101 	struct ttm_object_file *tfile;
102 	bool gb_aware; /* user-space is guest-backed aware */
103 };
104 
105 /**
106  * struct vmw_buffer_object - TTM buffer object with vmwgfx additions
107  * @base: The TTM buffer object
108  * @res_tree: RB tree of resources using this buffer object as a backing MOB
109  * @base_mapped_count: ttm BO mapping count; used by KMS atomic helpers.
110  * @cpu_writers: Number of synccpu write grabs. Protected by reservation when
111  * increased. May be decreased without reservation.
112  * @dx_query_ctx: DX context if this buffer object is used as a DX query MOB
113  * @map: Kmap object for semi-persistent mappings
114  * @res_prios: Eviction priority counts for attached resources
115  * @dirty: structure for user-space dirty-tracking
116  */
117 struct vmw_buffer_object {
118 	struct ttm_buffer_object base;
119 	struct rb_root res_tree;
120 	/* For KMS atomic helpers: ttm bo mapping count */
121 	atomic_t base_mapped_count;
122 
123 	atomic_t cpu_writers;
124 	/* Not ref-counted.  Protected by binding_mutex */
125 	struct vmw_resource *dx_query_ctx;
126 	/* Protected by reservation */
127 	struct ttm_bo_kmap_obj map;
128 	u32 res_prios[TTM_MAX_BO_PRIORITY];
129 	struct vmw_bo_dirty *dirty;
130 };
131 
132 /**
133  * struct vmw_validate_buffer - Carries validation info about buffers.
134  *
135  * @base: Validation info for TTM.
136  * @hash: Hash entry for quick lookup of the TTM buffer object.
137  *
138  * This structure contains also driver private validation info
139  * on top of the info needed by TTM.
140  */
141 struct vmw_validate_buffer {
142 	struct ttm_validate_buffer base;
143 	struct vmwgfx_hash_item hash;
144 	bool validate_as_mob;
145 };
146 
147 struct vmw_res_func;
148 
149 
150 /**
151  * struct vmw-resource - base class for hardware resources
152  *
153  * @kref: For refcounting.
154  * @dev_priv: Pointer to the device private for this resource. Immutable.
155  * @id: Device id. Protected by @dev_priv::resource_lock.
156  * @backup_size: Backup buffer size. Immutable.
157  * @res_dirty: Resource contains data not yet in the backup buffer. Protected
158  * by resource reserved.
159  * @backup_dirty: Backup buffer contains data not yet in the HW resource.
160  * Protected by resource reserved.
161  * @coherent: Emulate coherency by tracking vm accesses.
162  * @backup: The backup buffer if any. Protected by resource reserved.
163  * @backup_offset: Offset into the backup buffer if any. Protected by resource
164  * reserved. Note that only a few resource types can have a @backup_offset
165  * different from zero.
166  * @pin_count: The pin count for this resource. A pinned resource has a
167  * pin-count greater than zero. It is not on the resource LRU lists and its
168  * backup buffer is pinned. Hence it can't be evicted.
169  * @func: Method vtable for this resource. Immutable.
170  * @mob_node; Node for the MOB backup rbtree. Protected by @backup reserved.
171  * @lru_head: List head for the LRU list. Protected by @dev_priv::resource_lock.
172  * @binding_head: List head for the context binding list. Protected by
173  * the @dev_priv::binding_mutex
174  * @res_free: The resource destructor.
175  * @hw_destroy: Callback to destroy the resource on the device, as part of
176  * resource destruction.
177  */
178 struct vmw_resource_dirty;
179 struct vmw_resource {
180 	struct kref kref;
181 	struct vmw_private *dev_priv;
182 	int id;
183 	u32 used_prio;
184 	unsigned long backup_size;
185 	u32 res_dirty : 1;
186 	u32 backup_dirty : 1;
187 	u32 coherent : 1;
188 	struct vmw_buffer_object *backup;
189 	unsigned long backup_offset;
190 	unsigned long pin_count;
191 	const struct vmw_res_func *func;
192 	struct rb_node mob_node;
193 	struct list_head lru_head;
194 	struct list_head binding_head;
195 	struct vmw_resource_dirty *dirty;
196 	void (*res_free) (struct vmw_resource *res);
197 	void (*hw_destroy) (struct vmw_resource *res);
198 };
199 
200 
201 /*
202  * Resources that are managed using ioctls.
203  */
204 enum vmw_res_type {
205 	vmw_res_context,
206 	vmw_res_surface,
207 	vmw_res_stream,
208 	vmw_res_shader,
209 	vmw_res_dx_context,
210 	vmw_res_cotable,
211 	vmw_res_view,
212 	vmw_res_streamoutput,
213 	vmw_res_max
214 };
215 
216 /*
217  * Resources that are managed using command streams.
218  */
219 enum vmw_cmdbuf_res_type {
220 	vmw_cmdbuf_res_shader,
221 	vmw_cmdbuf_res_view,
222 	vmw_cmdbuf_res_streamoutput
223 };
224 
225 struct vmw_cmdbuf_res_manager;
226 
227 struct vmw_cursor_snooper {
228 	size_t age;
229 	uint32_t *image;
230 };
231 
232 struct vmw_framebuffer;
233 struct vmw_surface_offset;
234 
235 /**
236  * struct vmw_surface_metadata - Metadata describing a surface.
237  *
238  * @flags: Device flags.
239  * @format: Surface SVGA3D_x format.
240  * @mip_levels: Mip level for each face. For GB first index is used only.
241  * @multisample_count: Sample count.
242  * @multisample_pattern: Sample patterns.
243  * @quality_level: Quality level.
244  * @autogen_filter: Filter for automatically generated mipmaps.
245  * @array_size: Number of array elements for a 1D/2D texture. For cubemap
246                 texture number of faces * array_size. This should be 0 for pre
247 		SM4 device.
248  * @buffer_byte_stride: Buffer byte stride.
249  * @num_sizes: Size of @sizes. For GB surface this should always be 1.
250  * @base_size: Surface dimension.
251  * @sizes: Array representing mip sizes. Legacy only.
252  * @scanout: Whether this surface will be used for scanout.
253  *
254  * This tracks metadata for both legacy and guest backed surface.
255  */
256 struct vmw_surface_metadata {
257 	u64 flags;
258 	u32 format;
259 	u32 mip_levels[DRM_VMW_MAX_SURFACE_FACES];
260 	u32 multisample_count;
261 	u32 multisample_pattern;
262 	u32 quality_level;
263 	u32 autogen_filter;
264 	u32 array_size;
265 	u32 num_sizes;
266 	u32 buffer_byte_stride;
267 	struct drm_vmw_size base_size;
268 	struct drm_vmw_size *sizes;
269 	bool scanout;
270 };
271 
272 /**
273  * struct vmw_surface: Resource structure for a surface.
274  *
275  * @res: The base resource for this surface.
276  * @metadata: Metadata for this surface resource.
277  * @snooper: Cursor data. Legacy surface only.
278  * @offsets: Legacy surface only.
279  * @view_list: List of views bound to this surface.
280  */
281 struct vmw_surface {
282 	struct vmw_resource res;
283 	struct vmw_surface_metadata metadata;
284 	struct vmw_cursor_snooper snooper;
285 	struct vmw_surface_offset *offsets;
286 	struct list_head view_list;
287 };
288 
289 struct vmw_fifo_state {
290 	unsigned long reserved_size;
291 	u32 *dynamic_buffer;
292 	u32 *static_buffer;
293 	unsigned long static_buffer_size;
294 	bool using_bounce_buffer;
295 	uint32_t capabilities;
296 	struct mutex fifo_mutex;
297 	struct rw_semaphore rwsem;
298 };
299 
300 /**
301  * struct vmw_res_cache_entry - resource information cache entry
302  * @handle: User-space handle of a resource.
303  * @res: Non-ref-counted pointer to the resource.
304  * @valid_handle: Whether the @handle member is valid.
305  * @valid: Whether the entry is valid, which also implies that the execbuf
306  * code holds a reference to the resource, and it's placed on the
307  * validation list.
308  *
309  * Used to avoid frequent repeated user-space handle lookups of the
310  * same resource.
311  */
312 struct vmw_res_cache_entry {
313 	uint32_t handle;
314 	struct vmw_resource *res;
315 	void *private;
316 	unsigned short valid_handle;
317 	unsigned short valid;
318 };
319 
320 /**
321  * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
322  */
323 enum vmw_dma_map_mode {
324 	vmw_dma_alloc_coherent, /* Use TTM coherent pages */
325 	vmw_dma_map_populate,   /* Unmap from DMA just after unpopulate */
326 	vmw_dma_map_bind,       /* Unmap from DMA just before unbind */
327 	vmw_dma_map_max
328 };
329 
330 /**
331  * struct vmw_sg_table - Scatter/gather table for binding, with additional
332  * device-specific information.
333  *
334  * @sgt: Pointer to a struct sg_table with binding information
335  * @num_regions: Number of regions with device-address contiguous pages
336  */
337 struct vmw_sg_table {
338 	enum vmw_dma_map_mode mode;
339 	struct page **pages;
340 	const dma_addr_t *addrs;
341 	struct sg_table *sgt;
342 	unsigned long num_pages;
343 };
344 
345 /**
346  * struct vmw_piter - Page iterator that iterates over a list of pages
347  * and DMA addresses that could be either a scatter-gather list or
348  * arrays
349  *
350  * @pages: Array of page pointers to the pages.
351  * @addrs: DMA addresses to the pages if coherent pages are used.
352  * @iter: Scatter-gather page iterator. Current position in SG list.
353  * @i: Current position in arrays.
354  * @num_pages: Number of pages total.
355  * @next: Function to advance the iterator. Returns false if past the list
356  * of pages, true otherwise.
357  * @dma_address: Function to return the DMA address of the current page.
358  */
359 struct vmw_piter {
360 	struct page **pages;
361 	const dma_addr_t *addrs;
362 	struct sg_dma_page_iter iter;
363 	unsigned long i;
364 	unsigned long num_pages;
365 	bool (*next)(struct vmw_piter *);
366 	dma_addr_t (*dma_address)(struct vmw_piter *);
367 };
368 
369 
370 struct vmw_ttm_tt {
371 	struct ttm_tt dma_ttm;
372 	struct vmw_private *dev_priv;
373 	int gmr_id;
374 	struct vmw_mob *mob;
375 	int mem_type;
376 	struct sg_table sgt;
377 	struct vmw_sg_table vsgt;
378 	bool mapped;
379 	bool bound;
380 };
381 
382 /*
383  * enum vmw_display_unit_type - Describes the display unit
384  */
385 enum vmw_display_unit_type {
386 	vmw_du_invalid = 0,
387 	vmw_du_legacy,
388 	vmw_du_screen_object,
389 	vmw_du_screen_target,
390 	vmw_du_max
391 };
392 
393 struct vmw_validation_context;
394 struct vmw_ctx_validation_info;
395 
396 /**
397  * struct vmw_sw_context - Command submission context
398  * @res_ht: Pointer hash table used to find validation duplicates
399  * @kernel: Whether the command buffer originates from kernel code rather
400  * than from user-space
401  * @fp: If @kernel is false, points to the file of the client. Otherwise
402  * NULL
403  * @cmd_bounce: Command bounce buffer used for command validation before
404  * copying to fifo space
405  * @cmd_bounce_size: Current command bounce buffer size
406  * @cur_query_bo: Current buffer object used as query result buffer
407  * @bo_relocations: List of buffer object relocations
408  * @res_relocations: List of resource relocations
409  * @buf_start: Pointer to start of memory where command validation takes
410  * place
411  * @res_cache: Cache of recently looked up resources
412  * @last_query_ctx: Last context that submitted a query
413  * @needs_post_query_barrier: Whether a query barrier is needed after
414  * command submission
415  * @staged_bindings: Cached per-context binding tracker
416  * @staged_bindings_inuse: Whether the cached per-context binding tracker
417  * is in use
418  * @staged_cmd_res: List of staged command buffer managed resources in this
419  * command buffer
420  * @ctx_list: List of context resources referenced in this command buffer
421  * @dx_ctx_node: Validation metadata of the current DX context
422  * @dx_query_mob: The MOB used for DX queries
423  * @dx_query_ctx: The DX context used for the last DX query
424  * @man: Pointer to the command buffer managed resource manager
425  * @ctx: The validation context
426  */
427 struct vmw_sw_context{
428 	struct vmwgfx_open_hash res_ht;
429 	bool res_ht_initialized;
430 	bool kernel;
431 	struct vmw_fpriv *fp;
432 	struct drm_file *filp;
433 	uint32_t *cmd_bounce;
434 	uint32_t cmd_bounce_size;
435 	struct vmw_buffer_object *cur_query_bo;
436 	struct list_head bo_relocations;
437 	struct list_head res_relocations;
438 	uint32_t *buf_start;
439 	struct vmw_res_cache_entry res_cache[vmw_res_max];
440 	struct vmw_resource *last_query_ctx;
441 	bool needs_post_query_barrier;
442 	struct vmw_ctx_binding_state *staged_bindings;
443 	bool staged_bindings_inuse;
444 	struct list_head staged_cmd_res;
445 	struct list_head ctx_list;
446 	struct vmw_ctx_validation_info *dx_ctx_node;
447 	struct vmw_buffer_object *dx_query_mob;
448 	struct vmw_resource *dx_query_ctx;
449 	struct vmw_cmdbuf_res_manager *man;
450 	struct vmw_validation_context *ctx;
451 };
452 
453 struct vmw_legacy_display;
454 struct vmw_overlay;
455 
456 struct vmw_vga_topology_state {
457 	uint32_t width;
458 	uint32_t height;
459 	uint32_t primary;
460 	uint32_t pos_x;
461 	uint32_t pos_y;
462 };
463 
464 
465 /*
466  * struct vmw_otable - Guest Memory OBject table metadata
467  *
468  * @size:           Size of the table (page-aligned).
469  * @page_table:     Pointer to a struct vmw_mob holding the page table.
470  */
471 struct vmw_otable {
472 	unsigned long size;
473 	struct vmw_mob *page_table;
474 	bool enabled;
475 };
476 
477 struct vmw_otable_batch {
478 	unsigned num_otables;
479 	struct vmw_otable *otables;
480 	struct vmw_resource *context;
481 	struct ttm_buffer_object *otable_bo;
482 };
483 
484 enum {
485 	VMW_IRQTHREAD_FENCE,
486 	VMW_IRQTHREAD_CMDBUF,
487 	VMW_IRQTHREAD_MAX
488 };
489 
490 /**
491  * enum vmw_sm_type - Graphics context capability supported by device.
492  * @VMW_SM_LEGACY: Pre DX context.
493  * @VMW_SM_4: Context support upto SM4.
494  * @VMW_SM_4_1: Context support upto SM4_1.
495  * @VMW_SM_5: Context support up to SM5.
496  * @VMW_SM_5_1X: Adds support for sm5_1 and gl43 extensions.
497  * @VMW_SM_MAX: Should be the last.
498  */
499 enum vmw_sm_type {
500 	VMW_SM_LEGACY = 0,
501 	VMW_SM_4,
502 	VMW_SM_4_1,
503 	VMW_SM_5,
504 	VMW_SM_5_1X,
505 	VMW_SM_MAX
506 };
507 
508 struct vmw_private {
509 	struct drm_device drm;
510 	struct ttm_device bdev;
511 
512 	struct drm_vma_offset_manager vma_manager;
513 	u32 pci_id;
514 	resource_size_t io_start;
515 	resource_size_t vram_start;
516 	resource_size_t vram_size;
517 	resource_size_t max_primary_mem;
518 	u32 __iomem *rmmio;
519 	u32 *fifo_mem;
520 	resource_size_t fifo_mem_size;
521 	uint32_t fb_max_width;
522 	uint32_t fb_max_height;
523 	uint32_t texture_max_width;
524 	uint32_t texture_max_height;
525 	uint32_t stdu_max_width;
526 	uint32_t stdu_max_height;
527 	uint32_t initial_width;
528 	uint32_t initial_height;
529 	uint32_t capabilities;
530 	uint32_t capabilities2;
531 	uint32_t max_gmr_ids;
532 	uint32_t max_gmr_pages;
533 	uint32_t max_mob_pages;
534 	uint32_t max_mob_size;
535 	uint32_t memory_size;
536 	bool has_gmr;
537 	bool has_mob;
538 	spinlock_t hw_lock;
539 	bool assume_16bpp;
540 	u32 irqs[VMWGFX_MAX_NUM_IRQS];
541 	u32 num_irq_vectors;
542 
543 	enum vmw_sm_type sm_type;
544 
545 	/*
546 	 * Framebuffer info.
547 	 */
548 
549 	void *fb_info;
550 	enum vmw_display_unit_type active_display_unit;
551 	struct vmw_legacy_display *ldu_priv;
552 	struct vmw_overlay *overlay_priv;
553 	struct drm_property *hotplug_mode_update_property;
554 	struct drm_property *implicit_placement_property;
555 	spinlock_t cursor_lock;
556 	struct drm_atomic_state *suspend_state;
557 
558 	/*
559 	 * Context and surface management.
560 	 */
561 
562 	spinlock_t resource_lock;
563 	struct idr res_idr[vmw_res_max];
564 
565 	/*
566 	 * A resource manager for kernel-only surfaces and
567 	 * contexts.
568 	 */
569 
570 	struct ttm_object_device *tdev;
571 
572 	/*
573 	 * Fencing and IRQs.
574 	 */
575 
576 	atomic_t marker_seq;
577 	wait_queue_head_t fence_queue;
578 	wait_queue_head_t fifo_queue;
579 	spinlock_t waiter_lock;
580 	int fence_queue_waiters; /* Protected by waiter_lock */
581 	int goal_queue_waiters; /* Protected by waiter_lock */
582 	int cmdbuf_waiters; /* Protected by waiter_lock */
583 	int error_waiters; /* Protected by waiter_lock */
584 	int fifo_queue_waiters; /* Protected by waiter_lock */
585 	uint32_t last_read_seqno;
586 	struct vmw_fence_manager *fman;
587 	uint32_t irq_mask; /* Updates protected by waiter_lock */
588 
589 	/*
590 	 * Device state
591 	 */
592 
593 	uint32_t traces_state;
594 	uint32_t enable_state;
595 	uint32_t config_done_state;
596 
597 	/**
598 	 * Execbuf
599 	 */
600 	/**
601 	 * Protected by the cmdbuf mutex.
602 	 */
603 
604 	struct vmw_sw_context ctx;
605 	struct mutex cmdbuf_mutex;
606 	struct mutex binding_mutex;
607 
608 	bool enable_fb;
609 
610 	/**
611 	 * PM management.
612 	 */
613 	struct notifier_block pm_nb;
614 	bool refuse_hibernation;
615 	bool suspend_locked;
616 
617 	atomic_t num_fifo_resources;
618 
619 	/*
620 	 * Query processing. These members
621 	 * are protected by the cmdbuf mutex.
622 	 */
623 
624 	struct vmw_buffer_object *dummy_query_bo;
625 	struct vmw_buffer_object *pinned_bo;
626 	uint32_t query_cid;
627 	uint32_t query_cid_valid;
628 	bool dummy_query_bo_pinned;
629 
630 	/*
631 	 * Surface swapping. The "surface_lru" list is protected by the
632 	 * resource lock in order to be able to destroy a surface and take
633 	 * it off the lru atomically. "used_memory_size" is currently
634 	 * protected by the cmdbuf mutex for simplicity.
635 	 */
636 
637 	struct list_head res_lru[vmw_res_max];
638 	uint32_t used_memory_size;
639 
640 	/*
641 	 * DMA mapping stuff.
642 	 */
643 	enum vmw_dma_map_mode map_mode;
644 
645 	/*
646 	 * Guest Backed stuff
647 	 */
648 	struct vmw_otable_batch otable_batch;
649 
650 	struct vmw_fifo_state *fifo;
651 	struct vmw_cmdbuf_man *cman;
652 	DECLARE_BITMAP(irqthread_pending, VMW_IRQTHREAD_MAX);
653 
654 	uint32 *devcaps;
655 
656 	/*
657 	 * mksGuestStat instance-descriptor and pid arrays
658 	 */
659 	struct page *mksstat_user_pages[MKSSTAT_CAPACITY];
660 	atomic_t mksstat_user_pids[MKSSTAT_CAPACITY];
661 
662 #if IS_ENABLED(CONFIG_DRM_VMWGFX_MKSSTATS)
663 	struct page *mksstat_kern_pages[MKSSTAT_CAPACITY];
664 	u8 mksstat_kern_top_timer[MKSSTAT_CAPACITY];
665 	atomic_t mksstat_kern_pids[MKSSTAT_CAPACITY];
666 #endif
667 };
668 
gem_to_vmw_bo(struct drm_gem_object * gobj)669 static inline struct vmw_buffer_object *gem_to_vmw_bo(struct drm_gem_object *gobj)
670 {
671 	return container_of((gobj), struct vmw_buffer_object, base.base);
672 }
673 
vmw_res_to_srf(struct vmw_resource * res)674 static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
675 {
676 	return container_of(res, struct vmw_surface, res);
677 }
678 
vmw_priv(struct drm_device * dev)679 static inline struct vmw_private *vmw_priv(struct drm_device *dev)
680 {
681 	return (struct vmw_private *)dev->dev_private;
682 }
683 
vmw_fpriv(struct drm_file * file_priv)684 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
685 {
686 	return (struct vmw_fpriv *)file_priv->driver_priv;
687 }
688 
689 /*
690  * SVGA v3 has mmio register access and lacks fifo cmds
691  */
vmw_is_svga_v3(const struct vmw_private * dev)692 static inline bool vmw_is_svga_v3(const struct vmw_private *dev)
693 {
694 	return dev->pci_id == VMWGFX_PCI_ID_SVGA3;
695 }
696 
697 /*
698  * The locking here is fine-grained, so that it is performed once
699  * for every read- and write operation. This is of course costly, but we
700  * don't perform much register access in the timing critical paths anyway.
701  * Instead we have the extra benefit of being sure that we don't forget
702  * the hw lock around register accesses.
703  */
vmw_write(struct vmw_private * dev_priv,unsigned int offset,uint32_t value)704 static inline void vmw_write(struct vmw_private *dev_priv,
705 			     unsigned int offset, uint32_t value)
706 {
707 	if (vmw_is_svga_v3(dev_priv)) {
708 		iowrite32(value, dev_priv->rmmio + offset);
709 	} else {
710 		spin_lock(&dev_priv->hw_lock);
711 		outl(offset, dev_priv->io_start + SVGA_INDEX_PORT);
712 		outl(value, dev_priv->io_start + SVGA_VALUE_PORT);
713 		spin_unlock(&dev_priv->hw_lock);
714 	}
715 }
716 
vmw_read(struct vmw_private * dev_priv,unsigned int offset)717 static inline uint32_t vmw_read(struct vmw_private *dev_priv,
718 				unsigned int offset)
719 {
720 	u32 val;
721 
722 	if (vmw_is_svga_v3(dev_priv)) {
723 		val = ioread32(dev_priv->rmmio + offset);
724 	} else {
725 		spin_lock(&dev_priv->hw_lock);
726 		outl(offset, dev_priv->io_start + SVGA_INDEX_PORT);
727 		val = inl(dev_priv->io_start + SVGA_VALUE_PORT);
728 		spin_unlock(&dev_priv->hw_lock);
729 	}
730 
731 	return val;
732 }
733 
734 /**
735  * has_sm4_context - Does the device support SM4 context.
736  * @dev_priv: Device private.
737  *
738  * Return: Bool value if device support SM4 context or not.
739  */
has_sm4_context(const struct vmw_private * dev_priv)740 static inline bool has_sm4_context(const struct vmw_private *dev_priv)
741 {
742 	return (dev_priv->sm_type >= VMW_SM_4);
743 }
744 
745 /**
746  * has_sm4_1_context - Does the device support SM4_1 context.
747  * @dev_priv: Device private.
748  *
749  * Return: Bool value if device support SM4_1 context or not.
750  */
has_sm4_1_context(const struct vmw_private * dev_priv)751 static inline bool has_sm4_1_context(const struct vmw_private *dev_priv)
752 {
753 	return (dev_priv->sm_type >= VMW_SM_4_1);
754 }
755 
756 /**
757  * has_sm5_context - Does the device support SM5 context.
758  * @dev_priv: Device private.
759  *
760  * Return: Bool value if device support SM5 context or not.
761  */
has_sm5_context(const struct vmw_private * dev_priv)762 static inline bool has_sm5_context(const struct vmw_private *dev_priv)
763 {
764 	return (dev_priv->sm_type >= VMW_SM_5);
765 }
766 
767 /**
768  * has_gl43_context - Does the device support GL43 context.
769  * @dev_priv: Device private.
770  *
771  * Return: Bool value if device support SM5 context or not.
772  */
has_gl43_context(const struct vmw_private * dev_priv)773 static inline bool has_gl43_context(const struct vmw_private *dev_priv)
774 {
775 	return (dev_priv->sm_type >= VMW_SM_5_1X);
776 }
777 
778 
vmw_max_num_uavs(struct vmw_private * dev_priv)779 static inline u32 vmw_max_num_uavs(struct vmw_private *dev_priv)
780 {
781 	return (has_gl43_context(dev_priv) ?
782 			SVGA3D_DX11_1_MAX_UAVIEWS : SVGA3D_MAX_UAVIEWS);
783 }
784 
785 extern void vmw_svga_enable(struct vmw_private *dev_priv);
786 extern void vmw_svga_disable(struct vmw_private *dev_priv);
787 
788 
789 /**
790  * GMR utilities - vmwgfx_gmr.c
791  */
792 
793 extern int vmw_gmr_bind(struct vmw_private *dev_priv,
794 			const struct vmw_sg_table *vsgt,
795 			unsigned long num_pages,
796 			int gmr_id);
797 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
798 
799 /**
800  * Resource utilities - vmwgfx_resource.c
801  */
802 struct vmw_user_resource_conv;
803 
804 extern void vmw_resource_unreference(struct vmw_resource **p_res);
805 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
806 extern struct vmw_resource *
807 vmw_resource_reference_unless_doomed(struct vmw_resource *res);
808 extern int vmw_resource_validate(struct vmw_resource *res, bool intr,
809 				 bool dirtying);
810 extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
811 				bool no_backup);
812 extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
813 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
814 				  struct drm_file *filp,
815 				  uint32_t handle,
816 				  struct vmw_surface **out_surf,
817 				  struct vmw_buffer_object **out_buf);
818 extern int vmw_user_resource_lookup_handle(
819 	struct vmw_private *dev_priv,
820 	struct ttm_object_file *tfile,
821 	uint32_t handle,
822 	const struct vmw_user_resource_conv *converter,
823 	struct vmw_resource **p_res);
824 extern struct vmw_resource *
825 vmw_user_resource_noref_lookup_handle(struct vmw_private *dev_priv,
826 				      struct ttm_object_file *tfile,
827 				      uint32_t handle,
828 				      const struct vmw_user_resource_conv *
829 				      converter);
830 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
831 				  struct drm_file *file_priv);
832 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
833 				  struct drm_file *file_priv);
834 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
835 				  struct ttm_object_file *tfile,
836 				  uint32_t *inout_id,
837 				  struct vmw_resource **out);
838 extern void vmw_resource_unreserve(struct vmw_resource *res,
839 				   bool dirty_set,
840 				   bool dirty,
841 				   bool switch_backup,
842 				   struct vmw_buffer_object *new_backup,
843 				   unsigned long new_backup_offset);
844 extern void vmw_query_move_notify(struct ttm_buffer_object *bo,
845 				  struct ttm_resource *old_mem,
846 				  struct ttm_resource *new_mem);
847 extern int vmw_query_readback_all(struct vmw_buffer_object *dx_query_mob);
848 extern void vmw_resource_evict_all(struct vmw_private *dev_priv);
849 extern void vmw_resource_unbind_list(struct vmw_buffer_object *vbo);
850 void vmw_resource_mob_attach(struct vmw_resource *res);
851 void vmw_resource_mob_detach(struct vmw_resource *res);
852 void vmw_resource_dirty_update(struct vmw_resource *res, pgoff_t start,
853 			       pgoff_t end);
854 int vmw_resources_clean(struct vmw_buffer_object *vbo, pgoff_t start,
855 			pgoff_t end, pgoff_t *num_prefault);
856 
857 /**
858  * vmw_resource_mob_attached - Whether a resource currently has a mob attached
859  * @res: The resource
860  *
861  * Return: true if the resource has a mob attached, false otherwise.
862  */
vmw_resource_mob_attached(const struct vmw_resource * res)863 static inline bool vmw_resource_mob_attached(const struct vmw_resource *res)
864 {
865 	return !RB_EMPTY_NODE(&res->mob_node);
866 }
867 
868 /**
869  * vmw_user_resource_noref_release - release a user resource pointer looked up
870  * without reference
871  */
vmw_user_resource_noref_release(void)872 static inline void vmw_user_resource_noref_release(void)
873 {
874 	ttm_base_object_noref_release();
875 }
876 
877 /**
878  * Buffer object helper functions - vmwgfx_bo.c
879  */
880 extern bool vmw_bo_is_vmw_bo(struct ttm_buffer_object *bo);
881 extern int vmw_bo_pin_in_placement(struct vmw_private *vmw_priv,
882 				   struct vmw_buffer_object *bo,
883 				   struct ttm_placement *placement,
884 				   bool interruptible);
885 extern int vmw_bo_pin_in_vram(struct vmw_private *dev_priv,
886 			      struct vmw_buffer_object *buf,
887 			      bool interruptible);
888 extern int vmw_bo_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
889 				     struct vmw_buffer_object *buf,
890 				     bool interruptible);
891 extern int vmw_bo_pin_in_start_of_vram(struct vmw_private *vmw_priv,
892 				       struct vmw_buffer_object *bo,
893 				       bool interruptible);
894 extern int vmw_bo_unpin(struct vmw_private *vmw_priv,
895 			struct vmw_buffer_object *bo,
896 			bool interruptible);
897 extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
898 				 SVGAGuestPtr *ptr);
899 extern void vmw_bo_pin_reserved(struct vmw_buffer_object *bo, bool pin);
900 extern void vmw_bo_bo_free(struct ttm_buffer_object *bo);
901 extern int vmw_bo_create_kernel(struct vmw_private *dev_priv,
902 				unsigned long size,
903 				struct ttm_placement *placement,
904 				struct ttm_buffer_object **p_bo);
905 extern int vmw_bo_create(struct vmw_private *dev_priv,
906 			 size_t size, struct ttm_placement *placement,
907 			 bool interruptible, bool pin,
908 			 void (*bo_free)(struct ttm_buffer_object *bo),
909 			 struct vmw_buffer_object **p_bo);
910 extern int vmw_bo_init(struct vmw_private *dev_priv,
911 		       struct vmw_buffer_object *vmw_bo,
912 		       size_t size, struct ttm_placement *placement,
913 		       bool interruptible, bool pin,
914 		       void (*bo_free)(struct ttm_buffer_object *bo));
915 extern int vmw_bo_unref_ioctl(struct drm_device *dev, void *data,
916 			      struct drm_file *file_priv);
917 extern int vmw_user_bo_synccpu_ioctl(struct drm_device *dev, void *data,
918 				     struct drm_file *file_priv);
919 extern int vmw_user_bo_lookup(struct drm_file *filp,
920 			      uint32_t handle,
921 			      struct vmw_buffer_object **out);
922 extern void vmw_bo_fence_single(struct ttm_buffer_object *bo,
923 				struct vmw_fence_obj *fence);
924 extern void *vmw_bo_map_and_cache(struct vmw_buffer_object *vbo);
925 extern void vmw_bo_unmap(struct vmw_buffer_object *vbo);
926 extern void vmw_bo_move_notify(struct ttm_buffer_object *bo,
927 			       struct ttm_resource *mem);
928 extern void vmw_bo_swap_notify(struct ttm_buffer_object *bo);
929 extern struct vmw_buffer_object *
930 vmw_user_bo_noref_lookup(struct drm_file *filp, u32 handle);
931 
932 /**
933  * vmw_bo_adjust_prio - Adjust the buffer object eviction priority
934  * according to attached resources
935  * @vbo: The struct vmw_buffer_object
936  */
vmw_bo_prio_adjust(struct vmw_buffer_object * vbo)937 static inline void vmw_bo_prio_adjust(struct vmw_buffer_object *vbo)
938 {
939 	int i = ARRAY_SIZE(vbo->res_prios);
940 
941 	while (i--) {
942 		if (vbo->res_prios[i]) {
943 			vbo->base.priority = i;
944 			return;
945 		}
946 	}
947 
948 	vbo->base.priority = 3;
949 }
950 
951 /**
952  * vmw_bo_prio_add - Notify a buffer object of a newly attached resource
953  * eviction priority
954  * @vbo: The struct vmw_buffer_object
955  * @prio: The resource priority
956  *
957  * After being notified, the code assigns the highest resource eviction priority
958  * to the backing buffer object (mob).
959  */
vmw_bo_prio_add(struct vmw_buffer_object * vbo,int prio)960 static inline void vmw_bo_prio_add(struct vmw_buffer_object *vbo, int prio)
961 {
962 	if (vbo->res_prios[prio]++ == 0)
963 		vmw_bo_prio_adjust(vbo);
964 }
965 
966 /**
967  * vmw_bo_prio_del - Notify a buffer object of a resource with a certain
968  * priority being removed
969  * @vbo: The struct vmw_buffer_object
970  * @prio: The resource priority
971  *
972  * After being notified, the code assigns the highest resource eviction priority
973  * to the backing buffer object (mob).
974  */
vmw_bo_prio_del(struct vmw_buffer_object * vbo,int prio)975 static inline void vmw_bo_prio_del(struct vmw_buffer_object *vbo, int prio)
976 {
977 	if (--vbo->res_prios[prio] == 0)
978 		vmw_bo_prio_adjust(vbo);
979 }
980 
981 /**
982  * GEM related functionality - vmwgfx_gem.c
983  */
984 extern int vmw_gem_object_create_with_handle(struct vmw_private *dev_priv,
985 					     struct drm_file *filp,
986 					     uint32_t size,
987 					     uint32_t *handle,
988 					     struct vmw_buffer_object **p_vbo);
989 extern int vmw_gem_object_create_ioctl(struct drm_device *dev, void *data,
990 				       struct drm_file *filp);
991 extern void vmw_gem_destroy(struct ttm_buffer_object *bo);
992 extern void vmw_debugfs_gem_init(struct vmw_private *vdev);
993 
994 /**
995  * Misc Ioctl functionality - vmwgfx_ioctl.c
996  */
997 
998 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
999 			      struct drm_file *file_priv);
1000 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
1001 				struct drm_file *file_priv);
1002 extern int vmw_present_ioctl(struct drm_device *dev, void *data,
1003 			     struct drm_file *file_priv);
1004 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
1005 				      struct drm_file *file_priv);
1006 
1007 /**
1008  * Fifo utilities - vmwgfx_fifo.c
1009  */
1010 
1011 extern struct vmw_fifo_state *vmw_fifo_create(struct vmw_private *dev_priv);
1012 extern void vmw_fifo_destroy(struct vmw_private *dev_priv);
1013 extern bool vmw_cmd_supported(struct vmw_private *vmw);
1014 extern void *
1015 vmw_cmd_ctx_reserve(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id);
1016 extern void vmw_cmd_commit(struct vmw_private *dev_priv, uint32_t bytes);
1017 extern void vmw_cmd_commit_flush(struct vmw_private *dev_priv, uint32_t bytes);
1018 extern int vmw_cmd_send_fence(struct vmw_private *dev_priv, uint32_t *seqno);
1019 extern bool vmw_supports_3d(struct vmw_private *dev_priv);
1020 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
1021 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
1022 extern int vmw_cmd_emit_dummy_query(struct vmw_private *dev_priv,
1023 				    uint32_t cid);
1024 extern int vmw_cmd_flush(struct vmw_private *dev_priv,
1025 			 bool interruptible);
1026 
1027 #define VMW_CMD_CTX_RESERVE(__priv, __bytes, __ctx_id)                        \
1028 ({                                                                            \
1029 	vmw_cmd_ctx_reserve(__priv, __bytes, __ctx_id) ? : ({                 \
1030 		DRM_ERROR("FIFO reserve failed at %s for %u bytes\n",         \
1031 			  __func__, (unsigned int) __bytes);                  \
1032 		NULL;                                                         \
1033 	});                                                                   \
1034 })
1035 
1036 #define VMW_CMD_RESERVE(__priv, __bytes)                                     \
1037 	VMW_CMD_CTX_RESERVE(__priv, __bytes, SVGA3D_INVALID_ID)
1038 
1039 
1040 /**
1041  * vmw_fifo_caps - Returns the capabilities of the FIFO command
1042  * queue or 0 if fifo memory isn't present.
1043  * @dev_priv: The device private context
1044  */
vmw_fifo_caps(const struct vmw_private * dev_priv)1045 static inline uint32_t vmw_fifo_caps(const struct vmw_private *dev_priv)
1046 {
1047 	if (!dev_priv->fifo_mem || !dev_priv->fifo)
1048 		return 0;
1049 	return dev_priv->fifo->capabilities;
1050 }
1051 
1052 
1053 /**
1054  * vmw_is_cursor_bypass3_enabled - Returns TRUE iff Cursor Bypass 3
1055  * is enabled in the FIFO.
1056  * @dev_priv: The device private context
1057  */
1058 static inline bool
vmw_is_cursor_bypass3_enabled(const struct vmw_private * dev_priv)1059 vmw_is_cursor_bypass3_enabled(const struct vmw_private *dev_priv)
1060 {
1061 	return (vmw_fifo_caps(dev_priv) & SVGA_FIFO_CAP_CURSOR_BYPASS_3) != 0;
1062 }
1063 
1064 /**
1065  * TTM glue - vmwgfx_ttm_glue.c
1066  */
1067 
1068 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
1069 
1070 /**
1071  * TTM buffer object driver - vmwgfx_ttm_buffer.c
1072  */
1073 
1074 extern const size_t vmw_tt_size;
1075 extern struct ttm_placement vmw_vram_placement;
1076 extern struct ttm_placement vmw_vram_sys_placement;
1077 extern struct ttm_placement vmw_vram_gmr_placement;
1078 extern struct ttm_placement vmw_sys_placement;
1079 extern struct ttm_placement vmw_srf_placement;
1080 extern struct ttm_placement vmw_mob_placement;
1081 extern struct ttm_placement vmw_nonfixed_placement;
1082 extern struct ttm_device_funcs vmw_bo_driver;
1083 extern const struct vmw_sg_table *
1084 vmw_bo_sg_table(struct ttm_buffer_object *bo);
1085 extern int vmw_bo_create_and_populate(struct vmw_private *dev_priv,
1086 				      unsigned long bo_size,
1087 				      struct ttm_buffer_object **bo_p);
1088 
1089 extern void vmw_piter_start(struct vmw_piter *viter,
1090 			    const struct vmw_sg_table *vsgt,
1091 			    unsigned long p_offs);
1092 
1093 /**
1094  * vmw_piter_next - Advance the iterator one page.
1095  *
1096  * @viter: Pointer to the iterator to advance.
1097  *
1098  * Returns false if past the list of pages, true otherwise.
1099  */
vmw_piter_next(struct vmw_piter * viter)1100 static inline bool vmw_piter_next(struct vmw_piter *viter)
1101 {
1102 	return viter->next(viter);
1103 }
1104 
1105 /**
1106  * vmw_piter_dma_addr - Return the DMA address of the current page.
1107  *
1108  * @viter: Pointer to the iterator
1109  *
1110  * Returns the DMA address of the page pointed to by @viter.
1111  */
vmw_piter_dma_addr(struct vmw_piter * viter)1112 static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter)
1113 {
1114 	return viter->dma_address(viter);
1115 }
1116 
1117 /**
1118  * vmw_piter_page - Return a pointer to the current page.
1119  *
1120  * @viter: Pointer to the iterator
1121  *
1122  * Returns the DMA address of the page pointed to by @viter.
1123  */
vmw_piter_page(struct vmw_piter * viter)1124 static inline struct page *vmw_piter_page(struct vmw_piter *viter)
1125 {
1126 	return viter->pages[viter->i];
1127 }
1128 
1129 /**
1130  * Command submission - vmwgfx_execbuf.c
1131  */
1132 
1133 extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
1134 			     struct drm_file *file_priv);
1135 extern int vmw_execbuf_process(struct drm_file *file_priv,
1136 			       struct vmw_private *dev_priv,
1137 			       void __user *user_commands,
1138 			       void *kernel_commands,
1139 			       uint32_t command_size,
1140 			       uint64_t throttle_us,
1141 			       uint32_t dx_context_handle,
1142 			       struct drm_vmw_fence_rep __user
1143 			       *user_fence_rep,
1144 			       struct vmw_fence_obj **out_fence,
1145 			       uint32_t flags);
1146 extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
1147 					    struct vmw_fence_obj *fence);
1148 extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);
1149 
1150 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
1151 				      struct vmw_private *dev_priv,
1152 				      struct vmw_fence_obj **p_fence,
1153 				      uint32_t *p_handle);
1154 extern int vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
1155 					struct vmw_fpriv *vmw_fp,
1156 					int ret,
1157 					struct drm_vmw_fence_rep __user
1158 					*user_fence_rep,
1159 					struct vmw_fence_obj *fence,
1160 					uint32_t fence_handle,
1161 					int32_t out_fence_fd);
1162 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd);
1163 
1164 /**
1165  * IRQs and wating - vmwgfx_irq.c
1166  */
1167 
1168 extern int vmw_irq_install(struct vmw_private *dev_priv);
1169 extern void vmw_irq_uninstall(struct drm_device *dev);
1170 extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
1171 				uint32_t seqno);
1172 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
1173 			     bool lazy,
1174 			     bool fifo_idle,
1175 			     uint32_t seqno,
1176 			     bool interruptible,
1177 			     unsigned long timeout);
1178 extern void vmw_update_seqno(struct vmw_private *dev_priv);
1179 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
1180 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
1181 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
1182 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
1183 extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag,
1184 				   int *waiter_count);
1185 extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv,
1186 				      u32 flag, int *waiter_count);
1187 
1188 
1189 /**
1190  * Kernel framebuffer - vmwgfx_fb.c
1191  */
1192 
1193 #ifdef CONFIG_DRM_FBDEV_EMULATION
1194 int vmw_fb_init(struct vmw_private *vmw_priv);
1195 int vmw_fb_close(struct vmw_private *dev_priv);
1196 int vmw_fb_off(struct vmw_private *vmw_priv);
1197 int vmw_fb_on(struct vmw_private *vmw_priv);
1198 #else
vmw_fb_init(struct vmw_private * vmw_priv)1199 static inline int vmw_fb_init(struct vmw_private *vmw_priv)
1200 {
1201 	return 0;
1202 }
vmw_fb_close(struct vmw_private * dev_priv)1203 static inline int vmw_fb_close(struct vmw_private *dev_priv)
1204 {
1205 	return 0;
1206 }
vmw_fb_off(struct vmw_private * vmw_priv)1207 static inline int vmw_fb_off(struct vmw_private *vmw_priv)
1208 {
1209 	return 0;
1210 }
vmw_fb_on(struct vmw_private * vmw_priv)1211 static inline int vmw_fb_on(struct vmw_private *vmw_priv)
1212 {
1213 	return 0;
1214 }
1215 #endif
1216 
1217 /**
1218  * Kernel modesetting - vmwgfx_kms.c
1219  */
1220 
1221 int vmw_kms_init(struct vmw_private *dev_priv);
1222 int vmw_kms_close(struct vmw_private *dev_priv);
1223 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1224 				struct drm_file *file_priv);
1225 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
1226 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
1227 			  struct ttm_object_file *tfile,
1228 			  struct ttm_buffer_object *bo,
1229 			  SVGA3dCmdHeader *header);
1230 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1231 		       unsigned width, unsigned height, unsigned pitch,
1232 		       unsigned bpp, unsigned depth);
1233 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1234 				uint32_t pitch,
1235 				uint32_t height);
1236 u32 vmw_get_vblank_counter(struct drm_crtc *crtc);
1237 int vmw_enable_vblank(struct drm_crtc *crtc);
1238 void vmw_disable_vblank(struct drm_crtc *crtc);
1239 int vmw_kms_present(struct vmw_private *dev_priv,
1240 		    struct drm_file *file_priv,
1241 		    struct vmw_framebuffer *vfb,
1242 		    struct vmw_surface *surface,
1243 		    uint32_t sid, int32_t destX, int32_t destY,
1244 		    struct drm_vmw_rect *clips,
1245 		    uint32_t num_clips);
1246 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1247 				struct drm_file *file_priv);
1248 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
1249 int vmw_kms_suspend(struct drm_device *dev);
1250 int vmw_kms_resume(struct drm_device *dev);
1251 void vmw_kms_lost_device(struct drm_device *dev);
1252 
1253 int vmw_dumb_create(struct drm_file *file_priv,
1254 		    struct drm_device *dev,
1255 		    struct drm_mode_create_dumb *args);
1256 extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible);
1257 extern void vmw_resource_unpin(struct vmw_resource *res);
1258 extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res);
1259 
1260 /**
1261  * Overlay control - vmwgfx_overlay.c
1262  */
1263 
1264 int vmw_overlay_init(struct vmw_private *dev_priv);
1265 int vmw_overlay_close(struct vmw_private *dev_priv);
1266 int vmw_overlay_ioctl(struct drm_device *dev, void *data,
1267 		      struct drm_file *file_priv);
1268 int vmw_overlay_resume_all(struct vmw_private *dev_priv);
1269 int vmw_overlay_pause_all(struct vmw_private *dev_priv);
1270 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
1271 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
1272 int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
1273 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
1274 
1275 /**
1276  * GMR Id manager
1277  */
1278 
1279 int vmw_gmrid_man_init(struct vmw_private *dev_priv, int type);
1280 void vmw_gmrid_man_fini(struct vmw_private *dev_priv, int type);
1281 
1282 /**
1283  * System memory manager
1284  */
1285 int vmw_sys_man_init(struct vmw_private *dev_priv);
1286 void vmw_sys_man_fini(struct vmw_private *dev_priv);
1287 
1288 /**
1289  * Prime - vmwgfx_prime.c
1290  */
1291 
1292 extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
1293 extern int vmw_prime_fd_to_handle(struct drm_device *dev,
1294 				  struct drm_file *file_priv,
1295 				  int fd, u32 *handle);
1296 extern int vmw_prime_handle_to_fd(struct drm_device *dev,
1297 				  struct drm_file *file_priv,
1298 				  uint32_t handle, uint32_t flags,
1299 				  int *prime_fd);
1300 
1301 /*
1302  * MemoryOBject management -  vmwgfx_mob.c
1303  */
1304 struct vmw_mob;
1305 extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob,
1306 			const struct vmw_sg_table *vsgt,
1307 			unsigned long num_data_pages, int32_t mob_id);
1308 extern void vmw_mob_unbind(struct vmw_private *dev_priv,
1309 			   struct vmw_mob *mob);
1310 extern void vmw_mob_destroy(struct vmw_mob *mob);
1311 extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
1312 extern int vmw_otables_setup(struct vmw_private *dev_priv);
1313 extern void vmw_otables_takedown(struct vmw_private *dev_priv);
1314 
1315 /*
1316  * Context management - vmwgfx_context.c
1317  */
1318 
1319 extern const struct vmw_user_resource_conv *user_context_converter;
1320 
1321 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
1322 				    struct drm_file *file_priv);
1323 extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data,
1324 					     struct drm_file *file_priv);
1325 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
1326 				     struct drm_file *file_priv);
1327 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1328 extern struct vmw_cmdbuf_res_manager *
1329 vmw_context_res_man(struct vmw_resource *ctx);
1330 extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx,
1331 						SVGACOTableType cotable_type);
1332 struct vmw_ctx_binding_state;
1333 extern struct vmw_ctx_binding_state *
1334 vmw_context_binding_state(struct vmw_resource *ctx);
1335 extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx,
1336 					  bool readback);
1337 extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res,
1338 				     struct vmw_buffer_object *mob);
1339 extern struct vmw_buffer_object *
1340 vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res);
1341 
1342 
1343 /*
1344  * Surface management - vmwgfx_surface.c
1345  */
1346 
1347 extern const struct vmw_user_resource_conv *user_surface_converter;
1348 
1349 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
1350 				     struct drm_file *file_priv);
1351 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
1352 				    struct drm_file *file_priv);
1353 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
1354 				       struct drm_file *file_priv);
1355 extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1356 				       struct drm_file *file_priv);
1357 extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1358 					  struct drm_file *file_priv);
1359 extern int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev,
1360 					   void *data,
1361 					   struct drm_file *file_priv);
1362 extern int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev,
1363 					      void *data,
1364 					      struct drm_file *file_priv);
1365 
1366 int vmw_gb_surface_define(struct vmw_private *dev_priv,
1367 			  const struct vmw_surface_metadata *req,
1368 			  struct vmw_surface **srf_out);
1369 
1370 /*
1371  * Shader management - vmwgfx_shader.c
1372  */
1373 
1374 extern const struct vmw_user_resource_conv *user_shader_converter;
1375 
1376 extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
1377 				   struct drm_file *file_priv);
1378 extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
1379 				    struct drm_file *file_priv);
1380 extern int vmw_compat_shader_add(struct vmw_private *dev_priv,
1381 				 struct vmw_cmdbuf_res_manager *man,
1382 				 u32 user_key, const void *bytecode,
1383 				 SVGA3dShaderType shader_type,
1384 				 size_t size,
1385 				 struct list_head *list);
1386 extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man,
1387 			     u32 user_key, SVGA3dShaderType shader_type,
1388 			     struct list_head *list);
1389 extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man,
1390 			     struct vmw_resource *ctx,
1391 			     u32 user_key,
1392 			     SVGA3dShaderType shader_type,
1393 			     struct list_head *list);
1394 extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv,
1395 					     struct list_head *list,
1396 					     bool readback);
1397 
1398 extern struct vmw_resource *
1399 vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man,
1400 		  u32 user_key, SVGA3dShaderType shader_type);
1401 
1402 /*
1403  * Streamoutput management
1404  */
1405 struct vmw_resource *
1406 vmw_dx_streamoutput_lookup(struct vmw_cmdbuf_res_manager *man,
1407 			   u32 user_key);
1408 int vmw_dx_streamoutput_add(struct vmw_cmdbuf_res_manager *man,
1409 			    struct vmw_resource *ctx,
1410 			    SVGA3dStreamOutputId user_key,
1411 			    struct list_head *list);
1412 void vmw_dx_streamoutput_set_size(struct vmw_resource *res, u32 size);
1413 int vmw_dx_streamoutput_remove(struct vmw_cmdbuf_res_manager *man,
1414 			       SVGA3dStreamOutputId user_key,
1415 			       struct list_head *list);
1416 void vmw_dx_streamoutput_cotable_list_scrub(struct vmw_private *dev_priv,
1417 					    struct list_head *list,
1418 					    bool readback);
1419 
1420 /*
1421  * Command buffer managed resources - vmwgfx_cmdbuf_res.c
1422  */
1423 
1424 extern struct vmw_cmdbuf_res_manager *
1425 vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv);
1426 extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man);
1427 extern struct vmw_resource *
1428 vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man,
1429 		      enum vmw_cmdbuf_res_type res_type,
1430 		      u32 user_key);
1431 extern void vmw_cmdbuf_res_revert(struct list_head *list);
1432 extern void vmw_cmdbuf_res_commit(struct list_head *list);
1433 extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
1434 			      enum vmw_cmdbuf_res_type res_type,
1435 			      u32 user_key,
1436 			      struct vmw_resource *res,
1437 			      struct list_head *list);
1438 extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man,
1439 				 enum vmw_cmdbuf_res_type res_type,
1440 				 u32 user_key,
1441 				 struct list_head *list,
1442 				 struct vmw_resource **res);
1443 
1444 /*
1445  * COTable management - vmwgfx_cotable.c
1446  */
1447 extern const SVGACOTableType vmw_cotable_scrub_order[];
1448 extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv,
1449 					      struct vmw_resource *ctx,
1450 					      u32 type);
1451 extern int vmw_cotable_notify(struct vmw_resource *res, int id);
1452 extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback);
1453 extern void vmw_cotable_add_resource(struct vmw_resource *ctx,
1454 				     struct list_head *head);
1455 
1456 /*
1457  * Command buffer managerment vmwgfx_cmdbuf.c
1458  */
1459 struct vmw_cmdbuf_man;
1460 struct vmw_cmdbuf_header;
1461 
1462 extern struct vmw_cmdbuf_man *
1463 vmw_cmdbuf_man_create(struct vmw_private *dev_priv);
1464 extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man, size_t size);
1465 extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man);
1466 extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man);
1467 extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible,
1468 			   unsigned long timeout);
1469 extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size,
1470 				int ctx_id, bool interruptible,
1471 				struct vmw_cmdbuf_header *header);
1472 extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size,
1473 			      struct vmw_cmdbuf_header *header,
1474 			      bool flush);
1475 extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man,
1476 			      size_t size, bool interruptible,
1477 			      struct vmw_cmdbuf_header **p_header);
1478 extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header);
1479 extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man,
1480 				bool interruptible);
1481 extern void vmw_cmdbuf_irqthread(struct vmw_cmdbuf_man *man);
1482 
1483 /* CPU blit utilities - vmwgfx_blit.c */
1484 
1485 /**
1486  * struct vmw_diff_cpy - CPU blit information structure
1487  *
1488  * @rect: The output bounding box rectangle.
1489  * @line: The current line of the blit.
1490  * @line_offset: Offset of the current line segment.
1491  * @cpp: Bytes per pixel (granularity information).
1492  * @memcpy: Which memcpy function to use.
1493  */
1494 struct vmw_diff_cpy {
1495 	struct drm_rect rect;
1496 	size_t line;
1497 	size_t line_offset;
1498 	int cpp;
1499 	void (*do_cpy)(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1500 		       size_t n);
1501 };
1502 
1503 #define VMW_CPU_BLIT_INITIALIZER {	\
1504 	.do_cpy = vmw_memcpy,		\
1505 }
1506 
1507 #define VMW_CPU_BLIT_DIFF_INITIALIZER(_cpp) {	  \
1508 	.line = 0,				  \
1509 	.line_offset = 0,			  \
1510 	.rect = { .x1 = INT_MAX/2,		  \
1511 		  .y1 = INT_MAX/2,		  \
1512 		  .x2 = INT_MIN/2,		  \
1513 		  .y2 = INT_MIN/2		  \
1514 	},					  \
1515 	.cpp = _cpp,				  \
1516 	.do_cpy = vmw_diff_memcpy,		  \
1517 }
1518 
1519 void vmw_diff_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1520 		     size_t n);
1521 
1522 void vmw_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src, size_t n);
1523 
1524 int vmw_bo_cpu_blit(struct ttm_buffer_object *dst,
1525 		    u32 dst_offset, u32 dst_stride,
1526 		    struct ttm_buffer_object *src,
1527 		    u32 src_offset, u32 src_stride,
1528 		    u32 w, u32 h,
1529 		    struct vmw_diff_cpy *diff);
1530 
1531 /* Host messaging -vmwgfx_msg.c: */
1532 int vmw_host_get_guestinfo(const char *guest_info_param,
1533 			   char *buffer, size_t *length);
1534 __printf(1, 2) int vmw_host_printf(const char *fmt, ...);
1535 int vmw_msg_ioctl(struct drm_device *dev, void *data,
1536 		  struct drm_file *file_priv);
1537 
1538 /* Host mksGuestStats -vmwgfx_msg.c: */
1539 int vmw_mksstat_get_kern_slot(pid_t pid, struct vmw_private *dev_priv);
1540 
1541 int vmw_mksstat_reset_ioctl(struct drm_device *dev, void *data,
1542 		      struct drm_file *file_priv);
1543 int vmw_mksstat_add_ioctl(struct drm_device *dev, void *data,
1544 		      struct drm_file *file_priv);
1545 int vmw_mksstat_remove_ioctl(struct drm_device *dev, void *data,
1546 		      struct drm_file *file_priv);
1547 int vmw_mksstat_remove_all(struct vmw_private *dev_priv);
1548 
1549 /* VMW logging */
1550 
1551 /**
1552  * VMW_DEBUG_USER - Debug output for user-space debugging.
1553  *
1554  * @fmt: printf() like format string.
1555  *
1556  * This macro is for logging user-space error and debugging messages for e.g.
1557  * command buffer execution errors due to malformed commands, invalid context,
1558  * etc.
1559  */
1560 #define VMW_DEBUG_USER(fmt, ...)                                              \
1561 	DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
1562 
1563 /* Resource dirtying - vmwgfx_page_dirty.c */
1564 void vmw_bo_dirty_scan(struct vmw_buffer_object *vbo);
1565 int vmw_bo_dirty_add(struct vmw_buffer_object *vbo);
1566 void vmw_bo_dirty_transfer_to_res(struct vmw_resource *res);
1567 void vmw_bo_dirty_clear_res(struct vmw_resource *res);
1568 void vmw_bo_dirty_release(struct vmw_buffer_object *vbo);
1569 void vmw_bo_dirty_unmap(struct vmw_buffer_object *vbo,
1570 			pgoff_t start, pgoff_t end);
1571 vm_fault_t vmw_bo_vm_fault(struct vm_fault *vmf);
1572 vm_fault_t vmw_bo_vm_mkwrite(struct vm_fault *vmf);
1573 
1574 
1575 /**
1576  * VMW_DEBUG_KMS - Debug output for kernel mode-setting
1577  *
1578  * This macro is for debugging vmwgfx mode-setting code.
1579  */
1580 #define VMW_DEBUG_KMS(fmt, ...)                                               \
1581 	DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
1582 
1583 /**
1584  * Inline helper functions
1585  */
1586 
vmw_surface_unreference(struct vmw_surface ** srf)1587 static inline void vmw_surface_unreference(struct vmw_surface **srf)
1588 {
1589 	struct vmw_surface *tmp_srf = *srf;
1590 	struct vmw_resource *res = &tmp_srf->res;
1591 	*srf = NULL;
1592 
1593 	vmw_resource_unreference(&res);
1594 }
1595 
vmw_surface_reference(struct vmw_surface * srf)1596 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
1597 {
1598 	(void) vmw_resource_reference(&srf->res);
1599 	return srf;
1600 }
1601 
vmw_bo_unreference(struct vmw_buffer_object ** buf)1602 static inline void vmw_bo_unreference(struct vmw_buffer_object **buf)
1603 {
1604 	struct vmw_buffer_object *tmp_buf = *buf;
1605 
1606 	*buf = NULL;
1607 	if (tmp_buf != NULL)
1608 		ttm_bo_put(&tmp_buf->base);
1609 }
1610 
1611 static inline struct vmw_buffer_object *
vmw_bo_reference(struct vmw_buffer_object * buf)1612 vmw_bo_reference(struct vmw_buffer_object *buf)
1613 {
1614 	ttm_bo_get(&buf->base);
1615 	return buf;
1616 }
1617 
vmw_fifo_resource_inc(struct vmw_private * dev_priv)1618 static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv)
1619 {
1620 	atomic_inc(&dev_priv->num_fifo_resources);
1621 }
1622 
vmw_fifo_resource_dec(struct vmw_private * dev_priv)1623 static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv)
1624 {
1625 	atomic_dec(&dev_priv->num_fifo_resources);
1626 }
1627 
1628 /**
1629  * vmw_fifo_mem_read - Perform a MMIO read from the fifo memory
1630  *
1631  * @fifo_reg: The fifo register to read from
1632  *
1633  * This function is intended to be equivalent to ioread32() on
1634  * memremap'd memory, but without byteswapping.
1635  */
vmw_fifo_mem_read(struct vmw_private * vmw,uint32 fifo_reg)1636 static inline u32 vmw_fifo_mem_read(struct vmw_private *vmw, uint32 fifo_reg)
1637 {
1638 	BUG_ON(vmw_is_svga_v3(vmw));
1639 	return READ_ONCE(*(vmw->fifo_mem + fifo_reg));
1640 }
1641 
1642 /**
1643  * vmw_fifo_mem_write - Perform a MMIO write to volatile memory
1644  *
1645  * @addr: The fifo register to write to
1646  *
1647  * This function is intended to be equivalent to iowrite32 on
1648  * memremap'd memory, but without byteswapping.
1649  */
vmw_fifo_mem_write(struct vmw_private * vmw,u32 fifo_reg,u32 value)1650 static inline void vmw_fifo_mem_write(struct vmw_private *vmw, u32 fifo_reg,
1651 				      u32 value)
1652 {
1653 	BUG_ON(vmw_is_svga_v3(vmw));
1654 	WRITE_ONCE(*(vmw->fifo_mem + fifo_reg), value);
1655 }
1656 
vmw_fence_read(struct vmw_private * dev_priv)1657 static inline u32 vmw_fence_read(struct vmw_private *dev_priv)
1658 {
1659 	u32 fence;
1660 	if (vmw_is_svga_v3(dev_priv))
1661 		fence = vmw_read(dev_priv, SVGA_REG_FENCE);
1662 	else
1663 		fence = vmw_fifo_mem_read(dev_priv, SVGA_FIFO_FENCE);
1664 	return fence;
1665 }
1666 
vmw_fence_write(struct vmw_private * dev_priv,u32 fence)1667 static inline void vmw_fence_write(struct vmw_private *dev_priv,
1668 				  u32 fence)
1669 {
1670 	BUG_ON(vmw_is_svga_v3(dev_priv));
1671 	vmw_fifo_mem_write(dev_priv, SVGA_FIFO_FENCE, fence);
1672 }
1673 
vmw_irq_status_read(struct vmw_private * vmw)1674 static inline u32 vmw_irq_status_read(struct vmw_private *vmw)
1675 {
1676 	u32 status;
1677 	if (vmw_is_svga_v3(vmw))
1678 		status = vmw_read(vmw, SVGA_REG_IRQ_STATUS);
1679 	else
1680 		status = inl(vmw->io_start + SVGA_IRQSTATUS_PORT);
1681 	return status;
1682 }
1683 
vmw_irq_status_write(struct vmw_private * vmw,uint32 status)1684 static inline void vmw_irq_status_write(struct vmw_private *vmw,
1685 					uint32 status)
1686 {
1687 	if (vmw_is_svga_v3(vmw))
1688 		vmw_write(vmw, SVGA_REG_IRQ_STATUS, status);
1689 	else
1690 		outl(status, vmw->io_start + SVGA_IRQSTATUS_PORT);
1691 }
1692 
vmw_has_fences(struct vmw_private * vmw)1693 static inline bool vmw_has_fences(struct vmw_private *vmw)
1694 {
1695 	if ((vmw->capabilities & (SVGA_CAP_COMMAND_BUFFERS |
1696 				  SVGA_CAP_CMD_BUFFERS_2)) != 0)
1697 		return true;
1698 	return (vmw_fifo_caps(vmw) & SVGA_FIFO_CAP_FENCE) != 0;
1699 }
1700 
1701 #endif
1702