drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef _VMWGFX_DRV_H_
  29 #define _VMWGFX_DRV_H_
  30
  31 #include "vmwgfx_reg.h"
  32 #include <drm/drmP.h>
  33 #include <drm/vmwgfx_drm.h>
  34 #include <drm/drm_hashtab.h>
  35 #include <drm/drm_auth.h>
  36 #include <linux/suspend.h>
  37 #include <drm/ttm/ttm_bo_driver.h>
  38 #include <drm/ttm/ttm_object.h>
  39 #include <drm/ttm/ttm_lock.h>
  40 #include <drm/ttm/ttm_execbuf_util.h>
  41 #include <drm/ttm/ttm_module.h>
  42 #include "vmwgfx_fence.h"
  43 #include <linux/sync_file.h>
  44
  45 #define VMWGFX_DRIVER_NAME "vmwgfx"
  46 #define VMWGFX_DRIVER_DATE "20180322"
  47 #define VMWGFX_DRIVER_MAJOR 2
  48 #define VMWGFX_DRIVER_MINOR 14
  49 #define VMWGFX_DRIVER_PATCHLEVEL 1
  50 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000
  51 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
  52 #define VMWGFX_MAX_RELOCATIONS 2048
  53 #define VMWGFX_MAX_VALIDATIONS 2048
  54 #define VMWGFX_MAX_DISPLAYS 16
  55 #define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768
  56 #define VMWGFX_ENABLE_SCREEN_TARGET_OTABLE 1
  57
  58 /*
  59  * Perhaps we should have sysfs entries for these.
  60  */
  61 #define VMWGFX_NUM_GB_CONTEXT 256
  62 #define VMWGFX_NUM_GB_SHADER 20000
  63 #define VMWGFX_NUM_GB_SURFACE 32768
  64 #define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS
  65 #define VMWGFX_NUM_DXCONTEXT 256
  66 #define VMWGFX_NUM_DXQUERY 512
  67 #define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\
  68                         VMWGFX_NUM_GB_SHADER +\
  69                         VMWGFX_NUM_GB_SURFACE +\
  70                         VMWGFX_NUM_GB_SCREEN_TARGET)
  71
  72 #define VMW_PL_GMR (TTM_PL_PRIV + 0)
  73 #define VMW_PL_FLAG_GMR (TTM_PL_FLAG_PRIV << 0)
  74 #define VMW_PL_MOB (TTM_PL_PRIV + 1)
  75 #define VMW_PL_FLAG_MOB (TTM_PL_FLAG_PRIV << 1)
  76
  77 #define VMW_RES_CONTEXT ttm_driver_type0
  78 #define VMW_RES_SURFACE ttm_driver_type1
  79 #define VMW_RES_STREAM ttm_driver_type2
  80 #define VMW_RES_FENCE ttm_driver_type3
  81 #define VMW_RES_SHADER ttm_driver_type4
  82
  83 struct vmw_fpriv {
  84         struct drm_master *locked_master;
  85         struct ttm_object_file *tfile;
  86         bool gb_aware;
  87 };
  88
  89 struct vmw_dma_buffer {
  90         struct ttm_buffer_object base;
  91         struct list_head res_list;
  92         s32 pin_count;
  93         /* Not ref-counted.  Protected by binding_mutex */
  94         struct vmw_resource *dx_query_ctx;
  95         /* Protected by reservation */
  96         struct ttm_bo_kmap_obj map;
  97 };
  98
  99 /**
 100  * struct vmw_validate_buffer - Carries validation info about buffers.
 101  *
 102  * @base: Validation info for TTM.
 103  * @hash: Hash entry for quick lookup of the TTM buffer object.
 104  *
 105  * This structure contains also driver private validation info
 106  * on top of the info needed by TTM.
 107  */
 108 struct vmw_validate_buffer {
 109         struct ttm_validate_buffer base;
 110         struct drm_hash_item hash;
 111         bool validate_as_mob;
 112 };
 113
 114 struct vmw_res_func;
 115 struct vmw_resource {
 116         struct kref kref;
 117         struct vmw_private *dev_priv;
 118         int id;
 119         bool avail;
 120         unsigned long backup_size;
 121         bool res_dirty; /* Protected by backup buffer reserved */
 122         bool backup_dirty; /* Protected by backup buffer reserved */
 123         struct vmw_dma_buffer *backup;
 124         unsigned long backup_offset;
 125         unsigned long pin_count; /* Protected by resource reserved */
 126         const struct vmw_res_func *func;
 127         struct list_head lru_head; /* Protected by the resource lock */
 128         struct list_head mob_head; /* Protected by @backup reserved */
 129         struct list_head binding_head; /* Protected by binding_mutex */
 130         void (*res_free) (struct vmw_resource *res);
 131         void (*hw_destroy) (struct vmw_resource *res);
 132 };
 133
 134
 135 /*
 136  * Resources that are managed using ioctls.
 137  */
 138 enum vmw_res_type {
 139         vmw_res_context,
 140         vmw_res_surface,
 141         vmw_res_stream,
 142         vmw_res_shader,
 143         vmw_res_dx_context,
 144         vmw_res_cotable,
 145         vmw_res_view,
 146         vmw_res_max
 147 };
 148
 149 /*
 150  * Resources that are managed using command streams.
 151  */
 152 enum vmw_cmdbuf_res_type {
 153         vmw_cmdbuf_res_shader,
 154         vmw_cmdbuf_res_view
 155 };
 156
 157 struct vmw_cmdbuf_res_manager;
 158
 159 struct vmw_cursor_snooper {
 160         size_t age;
 161         uint32_t *image;
 162 };
 163
 164 struct vmw_framebuffer;
 165 struct vmw_surface_offset;
 166
 167 struct vmw_surface {
 168         struct vmw_resource res;
 169         uint32_t flags;
 170         uint32_t format;
 171         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 172         struct drm_vmw_size base_size;
 173         struct drm_vmw_size *sizes;
 174         uint32_t num_sizes;
 175         bool scanout;
 176         uint32_t array_size;
 177         /* TODO so far just a extra pointer */
 178         struct vmw_cursor_snooper snooper;
 179         struct vmw_surface_offset *offsets;
 180         SVGA3dTextureFilter autogen_filter;
 181         uint32_t multisample_count;
 182         struct list_head view_list;
 183 };
 184
 185 struct vmw_marker_queue {
 186         struct list_head head;
 187         u64 lag;
 188         u64 lag_time;
 189         spinlock_t lock;
 190 };
 191
 192 struct vmw_fifo_state {
 193         unsigned long reserved_size;
 194         u32 *dynamic_buffer;
 195         u32 *static_buffer;
 196         unsigned long static_buffer_size;
 197         bool using_bounce_buffer;
 198         uint32_t capabilities;
 199         struct mutex fifo_mutex;
 200         struct rw_semaphore rwsem;
 201         struct vmw_marker_queue marker_queue;
 202         bool dx;
 203 };
 204
 205 struct vmw_relocation {
 206         SVGAMobId *mob_loc;
 207         SVGAGuestPtr *location;
 208         uint32_t index;
 209 };
 210
 211 /**
 212  * struct vmw_res_cache_entry - resource information cache entry
 213  *
 214  * @valid: Whether the entry is valid, which also implies that the execbuf
 215  * code holds a reference to the resource, and it's placed on the
 216  * validation list.
 217  * @handle: User-space handle of a resource.
 218  * @res: Non-ref-counted pointer to the resource.
 219  *
 220  * Used to avoid frequent repeated user-space handle lookups of the
 221  * same resource.
 222  */
 223 struct vmw_res_cache_entry {
 224         bool valid;
 225         uint32_t handle;
 226         struct vmw_resource *res;
 227         struct vmw_resource_val_node *node;
 228 };
 229
 230 /**
 231  * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
 232  */
 233 enum vmw_dma_map_mode {
 234         vmw_dma_phys,           /* Use physical page addresses */
 235         vmw_dma_alloc_coherent, /* Use TTM coherent pages */
 236         vmw_dma_map_populate,   /* Unmap from DMA just after unpopulate */
 237         vmw_dma_map_bind,       /* Unmap from DMA just before unbind */
 238         vmw_dma_map_max
 239 };
 240
 241 /**
 242  * struct vmw_sg_table - Scatter/gather table for binding, with additional
 243  * device-specific information.
 244  *
 245  * @sgt: Pointer to a struct sg_table with binding information
 246  * @num_regions: Number of regions with device-address contiguous pages
 247  */
 248 struct vmw_sg_table {
 249         enum vmw_dma_map_mode mode;
 250         struct page **pages;
 251         const dma_addr_t *addrs;
 252         struct sg_table *sgt;
 253         unsigned long num_regions;
 254         unsigned long num_pages;
 255 };
 256
 257 /**
 258  * struct vmw_piter - Page iterator that iterates over a list of pages
 259  * and DMA addresses that could be either a scatter-gather list or
 260  * arrays
 261  *
 262  * @pages: Array of page pointers to the pages.
 263  * @addrs: DMA addresses to the pages if coherent pages are used.
 264  * @iter: Scatter-gather page iterator. Current position in SG list.
 265  * @i: Current position in arrays.
 266  * @num_pages: Number of pages total.
 267  * @next: Function to advance the iterator. Returns false if past the list
 268  * of pages, true otherwise.
 269  * @dma_address: Function to return the DMA address of the current page.
 270  */
 271 struct vmw_piter {
 272         struct page **pages;
 273         const dma_addr_t *addrs;
 274         struct sg_page_iter iter;
 275         unsigned long i;
 276         unsigned long num_pages;
 277         bool (*next)(struct vmw_piter *);
 278         dma_addr_t (*dma_address)(struct vmw_piter *);
 279         struct page *(*page)(struct vmw_piter *);
 280 };
 281
 282 /*
 283  * enum vmw_display_unit_type - Describes the display unit
 284  */
 285 enum vmw_display_unit_type {
 286         vmw_du_invalid = 0,
 287         vmw_du_legacy,
 288         vmw_du_screen_object,
 289         vmw_du_screen_target
 290 };
 291
 292
 293 struct vmw_sw_context{
 294         struct drm_open_hash res_ht;
 295         bool res_ht_initialized;
 296         bool kernel; /**< is the called made from the kernel */
 297         struct vmw_fpriv *fp;
 298         struct list_head validate_nodes;
 299         struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
 300         uint32_t cur_reloc;
 301         struct vmw_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS];
 302         uint32_t cur_val_buf;
 303         uint32_t *cmd_bounce;
 304         uint32_t cmd_bounce_size;
 305         struct list_head resource_list;
 306         struct list_head ctx_resource_list; /* For contexts and cotables */
 307         struct vmw_dma_buffer *cur_query_bo;
 308         struct list_head res_relocations;
 309         uint32_t *buf_start;
 310         struct vmw_res_cache_entry res_cache[vmw_res_max];
 311         struct vmw_resource *last_query_ctx;
 312         bool needs_post_query_barrier;
 313         struct vmw_resource *error_resource;
 314         struct vmw_ctx_binding_state *staged_bindings;
 315         bool staged_bindings_inuse;
 316         struct list_head staged_cmd_res;
 317         struct vmw_resource_val_node *dx_ctx_node;
 318         struct vmw_dma_buffer *dx_query_mob;
 319         struct vmw_resource *dx_query_ctx;
 320         struct vmw_cmdbuf_res_manager *man;
 321 };
 322
 323 struct vmw_legacy_display;
 324 struct vmw_overlay;
 325
 326 struct vmw_master {
 327         struct ttm_lock lock;
 328 };
 329
 330 struct vmw_vga_topology_state {
 331         uint32_t width;
 332         uint32_t height;
 333         uint32_t primary;
 334         uint32_t pos_x;
 335         uint32_t pos_y;
 336 };
 337
 338
 339 /*
 340  * struct vmw_otable - Guest Memory OBject table metadata
 341  *
 342  * @size:           Size of the table (page-aligned).
 343  * @page_table:     Pointer to a struct vmw_mob holding the page table.
 344  */
 345 struct vmw_otable {
 346         unsigned long size;
 347         struct vmw_mob *page_table;
 348         bool enabled;
 349 };
 350
 351 struct vmw_otable_batch {
 352         unsigned num_otables;
 353         struct vmw_otable *otables;
 354         struct vmw_resource *context;
 355         struct ttm_buffer_object *otable_bo;
 356 };
 357
 358 enum {
 359         VMW_IRQTHREAD_FENCE,
 360         VMW_IRQTHREAD_CMDBUF,
 361         VMW_IRQTHREAD_MAX
 362 };
 363
 364 struct vmw_private {
 365         struct ttm_bo_device bdev;
 366         struct ttm_bo_global_ref bo_global_ref;
 367         struct drm_global_reference mem_global_ref;
 368
 369         struct vmw_fifo_state fifo;
 370
 371         struct drm_device *dev;
 372         unsigned long vmw_chipset;
 373         unsigned int io_start;
 374         uint32_t vram_start;
 375         uint32_t vram_size;
 376         uint32_t prim_bb_mem;
 377         uint32_t mmio_start;
 378         uint32_t mmio_size;
 379         uint32_t fb_max_width;
 380         uint32_t fb_max_height;
 381         uint32_t texture_max_width;
 382         uint32_t texture_max_height;
 383         uint32_t stdu_max_width;
 384         uint32_t stdu_max_height;
 385         uint32_t initial_width;
 386         uint32_t initial_height;
 387         u32 *mmio_virt;
 388         uint32_t capabilities;
 389         uint32_t max_gmr_ids;
 390         uint32_t max_gmr_pages;
 391         uint32_t max_mob_pages;
 392         uint32_t max_mob_size;
 393         uint32_t memory_size;
 394         bool has_gmr;
 395         bool has_mob;
 396         spinlock_t hw_lock;
 397         spinlock_t cap_lock;
 398         bool has_dx;
 399         bool assume_16bpp;
 400
 401         /*
 402          * VGA registers.
 403          */
 404
 405         struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS];
 406         uint32_t vga_width;
 407         uint32_t vga_height;
 408         uint32_t vga_bpp;
 409         uint32_t vga_bpl;
 410         uint32_t vga_pitchlock;
 411
 412         uint32_t num_displays;
 413
 414         /*
 415          * Framebuffer info.
 416          */
 417
 418         void *fb_info;
 419         enum vmw_display_unit_type active_display_unit;
 420         struct vmw_legacy_display *ldu_priv;
 421         struct vmw_overlay *overlay_priv;
 422         struct drm_property *hotplug_mode_update_property;
 423         struct drm_property *implicit_placement_property;
 424         unsigned num_implicit;
 425         struct vmw_framebuffer *implicit_fb;
 426         struct mutex global_kms_state_mutex;
 427         spinlock_t cursor_lock;
 428         struct drm_atomic_state *suspend_state;
 429
 430         /*
 431          * Context and surface management.
 432          */
 433
 434         rwlock_t resource_lock;
 435         struct idr res_idr[vmw_res_max];
 436         /*
 437          * Block lastclose from racing with firstopen.
 438          */
 439
 440         struct mutex init_mutex;
 441
 442         /*
 443          * A resource manager for kernel-only surfaces and
 444          * contexts.
 445          */
 446
 447         struct ttm_object_device *tdev;
 448
 449         /*
 450          * Fencing and IRQs.
 451          */
 452
 453         atomic_t marker_seq;
 454         wait_queue_head_t fence_queue;
 455         wait_queue_head_t fifo_queue;
 456         spinlock_t waiter_lock;
 457         int fence_queue_waiters; /* Protected by waiter_lock */
 458         int goal_queue_waiters; /* Protected by waiter_lock */
 459         int cmdbuf_waiters; /* Protected by waiter_lock */
 460         int error_waiters; /* Protected by waiter_lock */
 461         int fifo_queue_waiters; /* Protected by waiter_lock */
 462         uint32_t last_read_seqno;
 463         struct vmw_fence_manager *fman;
 464         uint32_t irq_mask; /* Updates protected by waiter_lock */
 465
 466         /*
 467          * Device state
 468          */
 469
 470         uint32_t traces_state;
 471         uint32_t enable_state;
 472         uint32_t config_done_state;
 473
 474         /**
 475          * Execbuf
 476          */
 477         /**
 478          * Protected by the cmdbuf mutex.
 479          */
 480
 481         struct vmw_sw_context ctx;
 482         struct mutex cmdbuf_mutex;
 483         struct mutex binding_mutex;
 484
 485         /**
 486          * Operating mode.
 487          */
 488
 489         bool stealth;
 490         bool enable_fb;
 491         spinlock_t svga_lock;
 492
 493         /**
 494          * Master management.
 495          */
 496
 497         struct vmw_master *active_master;
 498         struct vmw_master fbdev_master;
 499         struct notifier_block pm_nb;
 500         bool refuse_hibernation;
 501         bool suspend_locked;
 502
 503         struct mutex release_mutex;
 504         atomic_t num_fifo_resources;
 505
 506         /*
 507          * Replace this with an rwsem as soon as we have down_xx_interruptible()
 508          */
 509         struct ttm_lock reservation_sem;
 510
 511         /*
 512          * Query processing. These members
 513          * are protected by the cmdbuf mutex.
 514          */
 515
 516         struct vmw_dma_buffer *dummy_query_bo;
 517         struct vmw_dma_buffer *pinned_bo;
 518         uint32_t query_cid;
 519         uint32_t query_cid_valid;
 520         bool dummy_query_bo_pinned;
 521
 522         /*
 523          * Surface swapping. The "surface_lru" list is protected by the
 524          * resource lock in order to be able to destroy a surface and take
 525          * it off the lru atomically. "used_memory_size" is currently
 526          * protected by the cmdbuf mutex for simplicity.
 527          */
 528
 529         struct list_head res_lru[vmw_res_max];
 530         uint32_t used_memory_size;
 531
 532         /*
 533          * DMA mapping stuff.
 534          */
 535         enum vmw_dma_map_mode map_mode;
 536
 537         /*
 538          * Guest Backed stuff
 539          */
 540         struct vmw_otable_batch otable_batch;
 541
 542         struct vmw_cmdbuf_man *cman;
 543         DECLARE_BITMAP(irqthread_pending, VMW_IRQTHREAD_MAX);
 544 };
 545
 546 static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
 547 {
 548         return container_of(res, struct vmw_surface, res);
 549 }
 550
 551 static inline struct vmw_private *vmw_priv(struct drm_device *dev)
 552 {
 553         return (struct vmw_private *)dev->dev_private;
 554 }
 555
 556 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
 557 {
 558         return (struct vmw_fpriv *)file_priv->driver_priv;
 559 }
 560
 561 static inline struct vmw_master *vmw_master(struct drm_master *master)
 562 {
 563         return (struct vmw_master *) master->driver_priv;
 564 }
 565
 566 /*
 567  * The locking here is fine-grained, so that it is performed once
 568  * for every read- and write operation. This is of course costly, but we
 569  * don't perform much register access in the timing critical paths anyway.
 570  * Instead we have the extra benefit of being sure that we don't forget
 571  * the hw lock around register accesses.
 572  */
 573 static inline void vmw_write(struct vmw_private *dev_priv,
 574                              unsigned int offset, uint32_t value)
 575 {
 576         spin_lock(&dev_priv->hw_lock);
 577         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 578         outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
 579         spin_unlock(&dev_priv->hw_lock);
 580 }
 581
 582 static inline uint32_t vmw_read(struct vmw_private *dev_priv,
 583                                 unsigned int offset)
 584 {
 585         u32 val;
 586
 587         spin_lock(&dev_priv->hw_lock);
 588         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 589         val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
 590         spin_unlock(&dev_priv->hw_lock);
 591
 592         return val;
 593 }
 594
 595 extern void vmw_svga_enable(struct vmw_private *dev_priv);
 596 extern void vmw_svga_disable(struct vmw_private *dev_priv);
 597
 598
 599 /**
 600  * GMR utilities - vmwgfx_gmr.c
 601  */
 602
 603 extern int vmw_gmr_bind(struct vmw_private *dev_priv,
 604                         const struct vmw_sg_table *vsgt,
 605                         unsigned long num_pages,
 606                         int gmr_id);
 607 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
 608
 609 /**
 610  * Resource utilities - vmwgfx_resource.c
 611  */
 612 struct vmw_user_resource_conv;
 613
 614 extern void vmw_resource_unreference(struct vmw_resource **p_res);
 615 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
 616 extern struct vmw_resource *
 617 vmw_resource_reference_unless_doomed(struct vmw_resource *res);
 618 extern int vmw_resource_validate(struct vmw_resource *res);
 619 extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
 620                                 bool no_backup);
 621 extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
 622 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
 623                                   struct ttm_object_file *tfile,
 624                                   uint32_t handle,
 625                                   struct vmw_surface **out_surf,
 626                                   struct vmw_dma_buffer **out_buf);
 627 extern int vmw_user_resource_lookup_handle(
 628         struct vmw_private *dev_priv,
 629         struct ttm_object_file *tfile,
 630         uint32_t handle,
 631         const struct vmw_user_resource_conv *converter,
 632         struct vmw_resource **p_res);
 633 extern void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo);
 634 extern int vmw_dmabuf_init(struct vmw_private *dev_priv,
 635                            struct vmw_dma_buffer *vmw_bo,
 636                            size_t size, struct ttm_placement *placement,
 637                            bool interuptable,
 638                            void (*bo_free) (struct ttm_buffer_object *bo));
 639 extern int vmw_user_dmabuf_verify_access(struct ttm_buffer_object *bo,
 640                                   struct ttm_object_file *tfile);
 641 extern int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv,
 642                                  struct ttm_object_file *tfile,
 643                                  uint32_t size,
 644                                  bool shareable,
 645                                  uint32_t *handle,
 646                                  struct vmw_dma_buffer **p_dma_buf,
 647                                  struct ttm_base_object **p_base);
 648 extern int vmw_user_dmabuf_reference(struct ttm_object_file *tfile,
 649                                      struct vmw_dma_buffer *dma_buf,
 650                                      uint32_t *handle);
 651 extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data,
 652                                   struct drm_file *file_priv);
 653 extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data,
 654                                   struct drm_file *file_priv);
 655 extern int vmw_user_dmabuf_synccpu_ioctl(struct drm_device *dev, void *data,
 656                                          struct drm_file *file_priv);
 657 extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo,
 658                                          uint32_t cur_validate_node);
 659 extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo);
 660 extern int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile,
 661                                   uint32_t id, struct vmw_dma_buffer **out,
 662                                   struct ttm_base_object **base);
 663 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
 664                                   struct drm_file *file_priv);
 665 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
 666                                   struct drm_file *file_priv);
 667 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
 668                                   struct ttm_object_file *tfile,
 669                                   uint32_t *inout_id,
 670                                   struct vmw_resource **out);
 671 extern void vmw_resource_unreserve(struct vmw_resource *res,
 672                                    bool switch_backup,
 673                                    struct vmw_dma_buffer *new_backup,
 674                                    unsigned long new_backup_offset);
 675 extern void vmw_resource_move_notify(struct ttm_buffer_object *bo,
 676                                      struct ttm_mem_reg *mem);
 677 extern void vmw_query_move_notify(struct ttm_buffer_object *bo,
 678                                   struct ttm_mem_reg *mem);
 679 extern void vmw_resource_swap_notify(struct ttm_buffer_object *bo);
 680 extern int vmw_query_readback_all(struct vmw_dma_buffer *dx_query_mob);
 681 extern void vmw_fence_single_bo(struct ttm_buffer_object *bo,
 682                                 struct vmw_fence_obj *fence);
 683 extern void vmw_resource_evict_all(struct vmw_private *dev_priv);
 684
 685
 686 /**
 687  * DMA buffer helper routines - vmwgfx_dmabuf.c
 688  */
 689 extern int vmw_dmabuf_pin_in_placement(struct vmw_private *vmw_priv,
 690                                        struct vmw_dma_buffer *bo,
 691                                        struct ttm_placement *placement,
 692                                        bool interruptible);
 693 extern int vmw_dmabuf_pin_in_vram(struct vmw_private *dev_priv,
 694                                   struct vmw_dma_buffer *buf,
 695                                   bool interruptible);
 696 extern int vmw_dmabuf_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
 697                                          struct vmw_dma_buffer *buf,
 698                                          bool interruptible);
 699 extern int vmw_dmabuf_pin_in_start_of_vram(struct vmw_private *vmw_priv,
 700                                            struct vmw_dma_buffer *bo,
 701                                            bool interruptible);
 702 extern int vmw_dmabuf_unpin(struct vmw_private *vmw_priv,
 703                             struct vmw_dma_buffer *bo,
 704                             bool interruptible);
 705 extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
 706                                  SVGAGuestPtr *ptr);
 707 extern void vmw_bo_pin_reserved(struct vmw_dma_buffer *bo, bool pin);
 708 extern void *vmw_dma_buffer_map_and_cache(struct vmw_dma_buffer *vbo);
 709 extern void vmw_dma_buffer_unmap(struct vmw_dma_buffer *vbo);
 710
 711 /**
 712  * Misc Ioctl functionality - vmwgfx_ioctl.c
 713  */
 714
 715 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 716                               struct drm_file *file_priv);
 717 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
 718                                 struct drm_file *file_priv);
 719 extern int vmw_present_ioctl(struct drm_device *dev, void *data,
 720                              struct drm_file *file_priv);
 721 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
 722                                       struct drm_file *file_priv);
 723 extern __poll_t vmw_fops_poll(struct file *filp,
 724                                   struct poll_table_struct *wait);
 725 extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
 726                              size_t count, loff_t *offset);
 727
 728 /**
 729  * Fifo utilities - vmwgfx_fifo.c
 730  */
 731
 732 extern int vmw_fifo_init(struct vmw_private *dev_priv,
 733                          struct vmw_fifo_state *fifo);
 734 extern void vmw_fifo_release(struct vmw_private *dev_priv,
 735                              struct vmw_fifo_state *fifo);
 736 extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes);
 737 extern void *
 738 vmw_fifo_reserve_dx(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id);
 739 extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
 740 extern void vmw_fifo_commit_flush(struct vmw_private *dev_priv, uint32_t bytes);
 741 extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
 742                                uint32_t *seqno);
 743 extern void vmw_fifo_ping_host_locked(struct vmw_private *, uint32_t reason);
 744 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 745 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
 746 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
 747 extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv,
 748                                      uint32_t cid);
 749 extern int vmw_fifo_flush(struct vmw_private *dev_priv,
 750                           bool interruptible);
 751
 752 /**
 753  * TTM glue - vmwgfx_ttm_glue.c
 754  */
 755
 756 extern int vmw_ttm_global_init(struct vmw_private *dev_priv);
 757 extern void vmw_ttm_global_release(struct vmw_private *dev_priv);
 758 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 759
 760 /**
 761  * TTM buffer object driver - vmwgfx_buffer.c
 762  */
 763
 764 extern const size_t vmw_tt_size;
 765 extern struct ttm_placement vmw_vram_placement;
 766 extern struct ttm_placement vmw_vram_ne_placement;
 767 extern struct ttm_placement vmw_vram_sys_placement;
 768 extern struct ttm_placement vmw_vram_gmr_placement;
 769 extern struct ttm_placement vmw_vram_gmr_ne_placement;
 770 extern struct ttm_placement vmw_sys_placement;
 771 extern struct ttm_placement vmw_sys_ne_placement;
 772 extern struct ttm_placement vmw_evictable_placement;
 773 extern struct ttm_placement vmw_srf_placement;
 774 extern struct ttm_placement vmw_mob_placement;
 775 extern struct ttm_placement vmw_mob_ne_placement;
 776 extern struct ttm_placement vmw_nonfixed_placement;
 777 extern struct ttm_bo_driver vmw_bo_driver;
 778 extern int vmw_dma_quiescent(struct drm_device *dev);
 779 extern int vmw_bo_map_dma(struct ttm_buffer_object *bo);
 780 extern void vmw_bo_unmap_dma(struct ttm_buffer_object *bo);
 781 extern const struct vmw_sg_table *
 782 vmw_bo_sg_table(struct ttm_buffer_object *bo);
 783 extern void vmw_piter_start(struct vmw_piter *viter,
 784                             const struct vmw_sg_table *vsgt,
 785                             unsigned long p_offs);
 786
 787 /**
 788  * vmw_piter_next - Advance the iterator one page.
 789  *
 790  * @viter: Pointer to the iterator to advance.
 791  *
 792  * Returns false if past the list of pages, true otherwise.
 793  */
 794 static inline bool vmw_piter_next(struct vmw_piter *viter)
 795 {
 796         return viter->next(viter);
 797 }
 798
 799 /**
 800  * vmw_piter_dma_addr - Return the DMA address of the current page.
 801  *
 802  * @viter: Pointer to the iterator
 803  *
 804  * Returns the DMA address of the page pointed to by @viter.
 805  */
 806 static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter)
 807 {
 808         return viter->dma_address(viter);
 809 }
 810
 811 /**
 812  * vmw_piter_page - Return a pointer to the current page.
 813  *
 814  * @viter: Pointer to the iterator
 815  *
 816  * Returns the DMA address of the page pointed to by @viter.
 817  */
 818 static inline struct page *vmw_piter_page(struct vmw_piter *viter)
 819 {
 820         return viter->page(viter);
 821 }
 822
 823 /**
 824  * Command submission - vmwgfx_execbuf.c
 825  */
 826
 827 extern int vmw_execbuf_ioctl(struct drm_device *dev, unsigned long data,
 828                              struct drm_file *file_priv, size_t size);
 829 extern int vmw_execbuf_process(struct drm_file *file_priv,
 830                                struct vmw_private *dev_priv,
 831                                void __user *user_commands,
 832                                void *kernel_commands,
 833                                uint32_t command_size,
 834                                uint64_t throttle_us,
 835                                uint32_t dx_context_handle,
 836                                struct drm_vmw_fence_rep __user
 837                                *user_fence_rep,
 838                                struct vmw_fence_obj **out_fence,
 839                                uint32_t flags);
 840 extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
 841                                             struct vmw_fence_obj *fence);
 842 extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);
 843
 844 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
 845                                       struct vmw_private *dev_priv,
 846                                       struct vmw_fence_obj **p_fence,
 847                                       uint32_t *p_handle);
 848 extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
 849                                         struct vmw_fpriv *vmw_fp,
 850                                         int ret,
 851                                         struct drm_vmw_fence_rep __user
 852                                         *user_fence_rep,
 853                                         struct vmw_fence_obj *fence,
 854                                         uint32_t fence_handle,
 855                                         int32_t out_fence_fd,
 856                                         struct sync_file *sync_file);
 857 extern int vmw_validate_single_buffer(struct vmw_private *dev_priv,
 858                                       struct ttm_buffer_object *bo,
 859                                       bool interruptible,
 860                                       bool validate_as_mob);
 861 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd);
 862
 863 /**
 864  * IRQs and wating - vmwgfx_irq.c
 865  */
 866
 867 extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
 868                           uint32_t seqno, bool interruptible,
 869                           unsigned long timeout);
 870 extern int vmw_irq_install(struct drm_device *dev, int irq);
 871 extern void vmw_irq_uninstall(struct drm_device *dev);
 872 extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
 873                                 uint32_t seqno);
 874 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
 875                              bool lazy,
 876                              bool fifo_idle,
 877                              uint32_t seqno,
 878                              bool interruptible,
 879                              unsigned long timeout);
 880 extern void vmw_update_seqno(struct vmw_private *dev_priv,
 881                                 struct vmw_fifo_state *fifo_state);
 882 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
 883 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
 884 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
 885 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
 886 extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag,
 887                                    int *waiter_count);
 888 extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv,
 889                                       u32 flag, int *waiter_count);
 890
 891 /**
 892  * Rudimentary fence-like objects currently used only for throttling -
 893  * vmwgfx_marker.c
 894  */
 895
 896 extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
 897 extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
 898 extern int vmw_marker_push(struct vmw_marker_queue *queue,
 899                            uint32_t seqno);
 900 extern int vmw_marker_pull(struct vmw_marker_queue *queue,
 901                            uint32_t signaled_seqno);
 902 extern int vmw_wait_lag(struct vmw_private *dev_priv,
 903                         struct vmw_marker_queue *queue, uint32_t us);
 904
 905 /**
 906  * Kernel framebuffer - vmwgfx_fb.c
 907  */
 908
 909 int vmw_fb_init(struct vmw_private *vmw_priv);
 910 int vmw_fb_close(struct vmw_private *dev_priv);
 911 int vmw_fb_off(struct vmw_private *vmw_priv);
 912 int vmw_fb_on(struct vmw_private *vmw_priv);
 913
 914 /**
 915  * Kernel modesetting - vmwgfx_kms.c
 916  */
 917
 918 int vmw_kms_init(struct vmw_private *dev_priv);
 919 int vmw_kms_close(struct vmw_private *dev_priv);
 920 int vmw_kms_save_vga(struct vmw_private *vmw_priv);
 921 int vmw_kms_restore_vga(struct vmw_private *vmw_priv);
 922 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
 923                                 struct drm_file *file_priv);
 924 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
 925 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 926                           struct ttm_object_file *tfile,
 927                           struct ttm_buffer_object *bo,
 928                           SVGA3dCmdHeader *header);
 929 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
 930                        unsigned width, unsigned height, unsigned pitch,
 931                        unsigned bpp, unsigned depth);
 932 void vmw_kms_idle_workqueues(struct vmw_master *vmaster);
 933 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
 934                                 uint32_t pitch,
 935                                 uint32_t height);
 936 u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
 937 int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe);
 938 void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe);
 939 int vmw_kms_present(struct vmw_private *dev_priv,
 940                     struct drm_file *file_priv,
 941                     struct vmw_framebuffer *vfb,
 942                     struct vmw_surface *surface,
 943                     uint32_t sid, int32_t destX, int32_t destY,
 944                     struct drm_vmw_rect *clips,
 945                     uint32_t num_clips);
 946 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 947                                 struct drm_file *file_priv);
 948 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
 949 int vmw_kms_suspend(struct drm_device *dev);
 950 int vmw_kms_resume(struct drm_device *dev);
 951 void vmw_kms_lost_device(struct drm_device *dev);
 952
 953 int vmw_dumb_create(struct drm_file *file_priv,
 954                     struct drm_device *dev,
 955                     struct drm_mode_create_dumb *args);
 956
 957 int vmw_dumb_map_offset(struct drm_file *file_priv,
 958                         struct drm_device *dev, uint32_t handle,
 959                         uint64_t *offset);
 960 int vmw_dumb_destroy(struct drm_file *file_priv,
 961                      struct drm_device *dev,
 962                      uint32_t handle);
 963 extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible);
 964 extern void vmw_resource_unpin(struct vmw_resource *res);
 965 extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res);
 966
 967 /**
 968  * Overlay control - vmwgfx_overlay.c
 969  */
 970
 971 int vmw_overlay_init(struct vmw_private *dev_priv);
 972 int vmw_overlay_close(struct vmw_private *dev_priv);
 973 int vmw_overlay_ioctl(struct drm_device *dev, void *data,
 974                       struct drm_file *file_priv);
 975 int vmw_overlay_stop_all(struct vmw_private *dev_priv);
 976 int vmw_overlay_resume_all(struct vmw_private *dev_priv);
 977 int vmw_overlay_pause_all(struct vmw_private *dev_priv);
 978 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
 979 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
 980 int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
 981 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
 982
 983 /**
 984  * GMR Id manager
 985  */
 986
 987 extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func;
 988
 989 /**
 990  * Prime - vmwgfx_prime.c
 991  */
 992
 993 extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
 994 extern int vmw_prime_fd_to_handle(struct drm_device *dev,
 995                                   struct drm_file *file_priv,
 996                                   int fd, u32 *handle);
 997 extern int vmw_prime_handle_to_fd(struct drm_device *dev,
 998                                   struct drm_file *file_priv,
 999                                   uint32_t handle, uint32_t flags,
1000                                   int *prime_fd);
1001
1002 /*
1003  * MemoryOBject management -  vmwgfx_mob.c
1004  */
1005 struct vmw_mob;
1006 extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob,
1007                         const struct vmw_sg_table *vsgt,
1008                         unsigned long num_data_pages, int32_t mob_id);
1009 extern void vmw_mob_unbind(struct vmw_private *dev_priv,
1010                            struct vmw_mob *mob);
1011 extern void vmw_mob_destroy(struct vmw_mob *mob);
1012 extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
1013 extern int vmw_otables_setup(struct vmw_private *dev_priv);
1014 extern void vmw_otables_takedown(struct vmw_private *dev_priv);
1015
1016 /*
1017  * Context management - vmwgfx_context.c
1018  */
1019
1020 extern const struct vmw_user_resource_conv *user_context_converter;
1021
1022 extern int vmw_context_check(struct vmw_private *dev_priv,
1023                              struct ttm_object_file *tfile,
1024                              int id,
1025                              struct vmw_resource **p_res);
1026 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
1027                                     struct drm_file *file_priv);
1028 extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data,
1029                                              struct drm_file *file_priv);
1030 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
1031                                      struct drm_file *file_priv);
1032 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1033 extern struct vmw_cmdbuf_res_manager *
1034 vmw_context_res_man(struct vmw_resource *ctx);
1035 extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx,
1036                                                 SVGACOTableType cotable_type);
1037 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1038 struct vmw_ctx_binding_state;
1039 extern struct vmw_ctx_binding_state *
1040 vmw_context_binding_state(struct vmw_resource *ctx);
1041 extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx,
1042                                           bool readback);
1043 extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res,
1044                                      struct vmw_dma_buffer *mob);
1045 extern struct vmw_dma_buffer *
1046 vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res);
1047
1048
1049 /*
1050  * Surface management - vmwgfx_surface.c
1051  */
1052
1053 extern const struct vmw_user_resource_conv *user_surface_converter;
1054
1055 extern void vmw_surface_res_free(struct vmw_resource *res);
1056 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
1057                                      struct drm_file *file_priv);
1058 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
1059                                     struct drm_file *file_priv);
1060 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
1061                                        struct drm_file *file_priv);
1062 extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1063                                        struct drm_file *file_priv);
1064 extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1065                                           struct drm_file *file_priv);
1066 extern int vmw_surface_check(struct vmw_private *dev_priv,
1067                              struct ttm_object_file *tfile,
1068                              uint32_t handle, int *id);
1069 extern int vmw_surface_validate(struct vmw_private *dev_priv,
1070                                 struct vmw_surface *srf);
1071 int vmw_surface_gb_priv_define(struct drm_device *dev,
1072                                uint32_t user_accounting_size,
1073                                uint32_t svga3d_flags,
1074                                SVGA3dSurfaceFormat format,
1075                                bool for_scanout,
1076                                uint32_t num_mip_levels,
1077                                uint32_t multisample_count,
1078                                uint32_t array_size,
1079                                struct drm_vmw_size size,
1080                                struct vmw_surface **srf_out);
1081
1082 /*
1083  * Shader management - vmwgfx_shader.c
1084  */
1085
1086 extern const struct vmw_user_resource_conv *user_shader_converter;
1087
1088 extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
1089                                    struct drm_file *file_priv);
1090 extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
1091                                     struct drm_file *file_priv);
1092 extern int vmw_compat_shader_add(struct vmw_private *dev_priv,
1093                                  struct vmw_cmdbuf_res_manager *man,
1094                                  u32 user_key, const void *bytecode,
1095                                  SVGA3dShaderType shader_type,
1096                                  size_t size,
1097                                  struct list_head *list);
1098 extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man,
1099                              u32 user_key, SVGA3dShaderType shader_type,
1100                              struct list_head *list);
1101 extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man,
1102                              struct vmw_resource *ctx,
1103                              u32 user_key,
1104                              SVGA3dShaderType shader_type,
1105                              struct list_head *list);
1106 extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv,
1107                                              struct list_head *list,
1108                                              bool readback);
1109
1110 extern struct vmw_resource *
1111 vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man,
1112                   u32 user_key, SVGA3dShaderType shader_type);
1113
1114 /*
1115  * Command buffer managed resources - vmwgfx_cmdbuf_res.c
1116  */
1117
1118 extern struct vmw_cmdbuf_res_manager *
1119 vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv);
1120 extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man);
1121 extern size_t vmw_cmdbuf_res_man_size(void);
1122 extern struct vmw_resource *
1123 vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man,
1124                       enum vmw_cmdbuf_res_type res_type,
1125                       u32 user_key);
1126 extern void vmw_cmdbuf_res_revert(struct list_head *list);
1127 extern void vmw_cmdbuf_res_commit(struct list_head *list);
1128 extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
1129                               enum vmw_cmdbuf_res_type res_type,
1130                               u32 user_key,
1131                               struct vmw_resource *res,
1132                               struct list_head *list);
1133 extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man,
1134                                  enum vmw_cmdbuf_res_type res_type,
1135                                  u32 user_key,
1136                                  struct list_head *list,
1137                                  struct vmw_resource **res);
1138
1139 /*
1140  * COTable management - vmwgfx_cotable.c
1141  */
1142 extern const SVGACOTableType vmw_cotable_scrub_order[];
1143 extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv,
1144                                               struct vmw_resource *ctx,
1145                                               u32 type);
1146 extern int vmw_cotable_notify(struct vmw_resource *res, int id);
1147 extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback);
1148 extern void vmw_cotable_add_resource(struct vmw_resource *ctx,
1149                                      struct list_head *head);
1150
1151 /*
1152  * Command buffer managerment vmwgfx_cmdbuf.c
1153  */
1154 struct vmw_cmdbuf_man;
1155 struct vmw_cmdbuf_header;
1156
1157 extern struct vmw_cmdbuf_man *
1158 vmw_cmdbuf_man_create(struct vmw_private *dev_priv);
1159 extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man,
1160                                     size_t size, size_t default_size);
1161 extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man);
1162 extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man);
1163 extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible,
1164                            unsigned long timeout);
1165 extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size,
1166                                 int ctx_id, bool interruptible,
1167                                 struct vmw_cmdbuf_header *header);
1168 extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size,
1169                               struct vmw_cmdbuf_header *header,
1170                               bool flush);
1171 extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man,
1172                               size_t size, bool interruptible,
1173                               struct vmw_cmdbuf_header **p_header);
1174 extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header);
1175 extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man,
1176                                 bool interruptible);
1177 extern void vmw_cmdbuf_irqthread(struct vmw_cmdbuf_man *man);
1178
1179 /* CPU blit utilities - vmwgfx_blit.c */
1180
1181 /**
1182  * struct vmw_diff_cpy - CPU blit information structure
1183  *
1184  * @rect: The output bounding box rectangle.
1185  * @line: The current line of the blit.
1186  * @line_offset: Offset of the current line segment.
1187  * @cpp: Bytes per pixel (granularity information).
1188  * @memcpy: Which memcpy function to use.
1189  */
1190 struct vmw_diff_cpy {
1191         struct drm_rect rect;
1192         size_t line;
1193         size_t line_offset;
1194         int cpp;
1195         void (*do_cpy)(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1196                        size_t n);
1197 };
1198
1199 #define VMW_CPU_BLIT_INITIALIZER {      \
1200         .do_cpy = vmw_memcpy,           \
1201 }
1202
1203 #define VMW_CPU_BLIT_DIFF_INITIALIZER(_cpp) {     \
1204         .line = 0,                                \
1205         .line_offset = 0,                         \
1206         .rect = { .x1 = INT_MAX/2,                \
1207                   .y1 = INT_MAX/2,                \
1208                   .x2 = INT_MIN/2,                \
1209                   .y2 = INT_MIN/2                 \
1210         },                                        \
1211         .cpp = _cpp,                              \
1212         .do_cpy = vmw_diff_memcpy,                \
1213 }
1214
1215 void vmw_diff_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1216                      size_t n);
1217
1218 void vmw_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src, size_t n);
1219
1220 int vmw_bo_cpu_blit(struct ttm_buffer_object *dst,
1221                     u32 dst_offset, u32 dst_stride,
1222                     struct ttm_buffer_object *src,
1223                     u32 src_offset, u32 src_stride,
1224                     u32 w, u32 h,
1225                     struct vmw_diff_cpy *diff);
1226
1227 /**
1228  * Inline helper functions
1229  */
1230
1231 static inline void vmw_surface_unreference(struct vmw_surface **srf)
1232 {
1233         struct vmw_surface *tmp_srf = *srf;
1234         struct vmw_resource *res = &tmp_srf->res;
1235         *srf = NULL;
1236
1237         vmw_resource_unreference(&res);
1238 }
1239
1240 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
1241 {
1242         (void) vmw_resource_reference(&srf->res);
1243         return srf;
1244 }
1245
1246 static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf)
1247 {
1248         struct vmw_dma_buffer *tmp_buf = *buf;
1249
1250         *buf = NULL;
1251         if (tmp_buf != NULL) {
1252                 struct ttm_buffer_object *bo = &tmp_buf->base;
1253
1254                 ttm_bo_unref(&bo);
1255         }
1256 }
1257
1258 static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf)
1259 {
1260         if (ttm_bo_reference(&buf->base))
1261                 return buf;
1262         return NULL;
1263 }
1264
1265 static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
1266 {
1267         return (struct ttm_mem_global *) dev_priv->mem_global_ref.object;
1268 }
1269
1270 static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv)
1271 {
1272         atomic_inc(&dev_priv->num_fifo_resources);
1273 }
1274
1275 static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv)
1276 {
1277         atomic_dec(&dev_priv->num_fifo_resources);
1278 }
1279
1280 /**
1281  * vmw_mmio_read - Perform a MMIO read from volatile memory
1282  *
1283  * @addr: The address to read from
1284  *
1285  * This function is intended to be equivalent to ioread32() on
1286  * memremap'd memory, but without byteswapping.
1287  */
1288 static inline u32 vmw_mmio_read(u32 *addr)
1289 {
1290         return READ_ONCE(*addr);
1291 }
1292
1293 /**
1294  * vmw_mmio_write - Perform a MMIO write to volatile memory
1295  *
1296  * @addr: The address to write to
1297  *
1298  * This function is intended to be equivalent to iowrite32 on
1299  * memremap'd memory, but without byteswapping.
1300  */
1301 static inline void vmw_mmio_write(u32 value, u32 *addr)
1302 {
1303         WRITE_ONCE(*addr, value);
1304 }
1305
1306 /**
1307  * Add vmw_msg module function
1308  */
1309 extern int vmw_host_log(const char *log);
1310
1311 #endif