drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009-2014 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 <linux/suspend.h>
  36 #include <drm/ttm/ttm_bo_driver.h>
  37 #include <drm/ttm/ttm_object.h>
  38 #include <drm/ttm/ttm_lock.h>
  39 #include <drm/ttm/ttm_execbuf_util.h>
  40 #include <drm/ttm/ttm_module.h>
  41 #include "vmwgfx_fence.h"
  42
  43 #define VMWGFX_DRIVER_DATE "20150626"
  44 #define VMWGFX_DRIVER_MAJOR 2
  45 #define VMWGFX_DRIVER_MINOR 7
  46 #define VMWGFX_DRIVER_PATCHLEVEL 0
  47 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000
  48 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
  49 #define VMWGFX_MAX_RELOCATIONS 2048
  50 #define VMWGFX_MAX_VALIDATIONS 2048
  51 #define VMWGFX_MAX_DISPLAYS 16
  52 #define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768
  53 #define VMWGFX_ENABLE_SCREEN_TARGET_OTABLE 1
  54
  55 /*
  56  * Perhaps we should have sysfs entries for these.
  57  */
  58 #define VMWGFX_NUM_GB_CONTEXT 256
  59 #define VMWGFX_NUM_GB_SHADER 20000
  60 #define VMWGFX_NUM_GB_SURFACE 32768
  61 #define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS
  62 #define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\
  63                         VMWGFX_NUM_GB_SHADER +\
  64                         VMWGFX_NUM_GB_SURFACE +\
  65                         VMWGFX_NUM_GB_SCREEN_TARGET)
  66
  67 #define VMW_PL_GMR TTM_PL_PRIV0
  68 #define VMW_PL_FLAG_GMR TTM_PL_FLAG_PRIV0
  69 #define VMW_PL_MOB TTM_PL_PRIV1
  70 #define VMW_PL_FLAG_MOB TTM_PL_FLAG_PRIV1
  71
  72 #define VMW_RES_CONTEXT ttm_driver_type0
  73 #define VMW_RES_SURFACE ttm_driver_type1
  74 #define VMW_RES_STREAM ttm_driver_type2
  75 #define VMW_RES_FENCE ttm_driver_type3
  76 #define VMW_RES_SHADER ttm_driver_type4
  77
  78 struct vmw_fpriv {
  79         struct drm_master *locked_master;
  80         struct ttm_object_file *tfile;
  81         struct list_head fence_events;
  82         bool gb_aware;
  83 };
  84
  85 struct vmw_dma_buffer {
  86         struct ttm_buffer_object base;
  87         struct list_head res_list;
  88         s32 pin_count;
  89 };
  90
  91 /**
  92  * struct vmw_validate_buffer - Carries validation info about buffers.
  93  *
  94  * @base: Validation info for TTM.
  95  * @hash: Hash entry for quick lookup of the TTM buffer object.
  96  *
  97  * This structure contains also driver private validation info
  98  * on top of the info needed by TTM.
  99  */
 100 struct vmw_validate_buffer {
 101         struct ttm_validate_buffer base;
 102         struct drm_hash_item hash;
 103         bool validate_as_mob;
 104 };
 105
 106 struct vmw_res_func;
 107 struct vmw_resource {
 108         struct kref kref;
 109         struct vmw_private *dev_priv;
 110         int id;
 111         bool avail;
 112         unsigned long backup_size;
 113         bool res_dirty; /* Protected by backup buffer reserved */
 114         bool backup_dirty; /* Protected by backup buffer reserved */
 115         struct vmw_dma_buffer *backup;
 116         unsigned long backup_offset;
 117         unsigned long pin_count; /* Protected by resource reserved */
 118         const struct vmw_res_func *func;
 119         struct list_head lru_head; /* Protected by the resource lock */
 120         struct list_head mob_head; /* Protected by @backup reserved */
 121         struct list_head binding_head; /* Protected by binding_mutex */
 122         void (*res_free) (struct vmw_resource *res);
 123         void (*hw_destroy) (struct vmw_resource *res);
 124 };
 125
 126
 127 /*
 128  * Resources that are managed using ioctls.
 129  */
 130 enum vmw_res_type {
 131         vmw_res_context,
 132         vmw_res_surface,
 133         vmw_res_stream,
 134         vmw_res_shader,
 135         vmw_res_max
 136 };
 137
 138 /*
 139  * Resources that are managed using command streams.
 140  */
 141 enum vmw_cmdbuf_res_type {
 142         vmw_cmdbuf_res_compat_shader
 143 };
 144
 145 struct vmw_cmdbuf_res_manager;
 146
 147 struct vmw_cursor_snooper {
 148         struct drm_crtc *crtc;
 149         size_t age;
 150         uint32_t *image;
 151 };
 152
 153 struct vmw_framebuffer;
 154 struct vmw_surface_offset;
 155
 156 struct vmw_surface {
 157         struct vmw_resource res;
 158         uint32_t flags;
 159         uint32_t format;
 160         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 161         struct drm_vmw_size base_size;
 162         struct drm_vmw_size *sizes;
 163         uint32_t num_sizes;
 164         bool scanout;
 165         /* TODO so far just a extra pointer */
 166         struct vmw_cursor_snooper snooper;
 167         struct vmw_surface_offset *offsets;
 168         SVGA3dTextureFilter autogen_filter;
 169         uint32_t multisample_count;
 170 };
 171
 172 struct vmw_marker_queue {
 173         struct list_head head;
 174         u64 lag;
 175         u64 lag_time;
 176         spinlock_t lock;
 177 };
 178
 179 struct vmw_fifo_state {
 180         unsigned long reserved_size;
 181         u32 *dynamic_buffer;
 182         u32 *static_buffer;
 183         unsigned long static_buffer_size;
 184         bool using_bounce_buffer;
 185         uint32_t capabilities;
 186         struct mutex fifo_mutex;
 187         struct rw_semaphore rwsem;
 188         struct vmw_marker_queue marker_queue;
 189 };
 190
 191 struct vmw_relocation {
 192         SVGAMobId *mob_loc;
 193         SVGAGuestPtr *location;
 194         uint32_t index;
 195 };
 196
 197 /**
 198  * struct vmw_res_cache_entry - resource information cache entry
 199  *
 200  * @valid: Whether the entry is valid, which also implies that the execbuf
 201  * code holds a reference to the resource, and it's placed on the
 202  * validation list.
 203  * @handle: User-space handle of a resource.
 204  * @res: Non-ref-counted pointer to the resource.
 205  *
 206  * Used to avoid frequent repeated user-space handle lookups of the
 207  * same resource.
 208  */
 209 struct vmw_res_cache_entry {
 210         bool valid;
 211         uint32_t handle;
 212         struct vmw_resource *res;
 213         struct vmw_resource_val_node *node;
 214 };
 215
 216 /**
 217  * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
 218  */
 219 enum vmw_dma_map_mode {
 220         vmw_dma_phys,           /* Use physical page addresses */
 221         vmw_dma_alloc_coherent, /* Use TTM coherent pages */
 222         vmw_dma_map_populate,   /* Unmap from DMA just after unpopulate */
 223         vmw_dma_map_bind,       /* Unmap from DMA just before unbind */
 224         vmw_dma_map_max
 225 };
 226
 227 /**
 228  * struct vmw_sg_table - Scatter/gather table for binding, with additional
 229  * device-specific information.
 230  *
 231  * @sgt: Pointer to a struct sg_table with binding information
 232  * @num_regions: Number of regions with device-address contigous pages
 233  */
 234 struct vmw_sg_table {
 235         enum vmw_dma_map_mode mode;
 236         struct page **pages;
 237         const dma_addr_t *addrs;
 238         struct sg_table *sgt;
 239         unsigned long num_regions;
 240         unsigned long num_pages;
 241 };
 242
 243 /**
 244  * struct vmw_piter - Page iterator that iterates over a list of pages
 245  * and DMA addresses that could be either a scatter-gather list or
 246  * arrays
 247  *
 248  * @pages: Array of page pointers to the pages.
 249  * @addrs: DMA addresses to the pages if coherent pages are used.
 250  * @iter: Scatter-gather page iterator. Current position in SG list.
 251  * @i: Current position in arrays.
 252  * @num_pages: Number of pages total.
 253  * @next: Function to advance the iterator. Returns false if past the list
 254  * of pages, true otherwise.
 255  * @dma_address: Function to return the DMA address of the current page.
 256  */
 257 struct vmw_piter {
 258         struct page **pages;
 259         const dma_addr_t *addrs;
 260         struct sg_page_iter iter;
 261         unsigned long i;
 262         unsigned long num_pages;
 263         bool (*next)(struct vmw_piter *);
 264         dma_addr_t (*dma_address)(struct vmw_piter *);
 265         struct page *(*page)(struct vmw_piter *);
 266 };
 267
 268 /*
 269  * enum vmw_ctx_binding_type - abstract resource to context binding types
 270  */
 271 enum vmw_ctx_binding_type {
 272         vmw_ctx_binding_shader,
 273         vmw_ctx_binding_rt,
 274         vmw_ctx_binding_tex,
 275         vmw_ctx_binding_max
 276 };
 277
 278 /**
 279  * struct vmw_ctx_bindinfo - structure representing a single context binding
 280  *
 281  * @ctx: Pointer to the context structure. NULL means the binding is not
 282  * active.
 283  * @res: Non ref-counted pointer to the bound resource.
 284  * @bt: The binding type.
 285  * @i1: Union of information needed to unbind.
 286  */
 287 struct vmw_ctx_bindinfo {
 288         struct vmw_resource *ctx;
 289         struct vmw_resource *res;
 290         enum vmw_ctx_binding_type bt;
 291         bool scrubbed;
 292         union {
 293                 SVGA3dShaderType shader_type;
 294                 SVGA3dRenderTargetType rt_type;
 295                 uint32 texture_stage;
 296         } i1;
 297 };
 298
 299 /**
 300  * struct vmw_ctx_binding - structure representing a single context binding
 301  *                        - suitable for tracking in a context
 302  *
 303  * @ctx_list: List head for context.
 304  * @res_list: List head for bound resource.
 305  * @bi: Binding info
 306  */
 307 struct vmw_ctx_binding {
 308         struct list_head ctx_list;
 309         struct list_head res_list;
 310         struct vmw_ctx_bindinfo bi;
 311 };
 312
 313
 314 /**
 315  * struct vmw_ctx_binding_state - context binding state
 316  *
 317  * @list: linked list of individual bindings.
 318  * @render_targets: Render target bindings.
 319  * @texture_units: Texture units/samplers bindings.
 320  * @shaders: Shader bindings.
 321  *
 322  * Note that this structure also provides storage space for the individual
 323  * struct vmw_ctx_binding objects, so that no dynamic allocation is needed
 324  * for individual bindings.
 325  *
 326  */
 327 struct vmw_ctx_binding_state {
 328         struct list_head list;
 329         struct vmw_ctx_binding render_targets[SVGA3D_RT_MAX];
 330         struct vmw_ctx_binding texture_units[SVGA3D_NUM_TEXTURE_UNITS];
 331         struct vmw_ctx_binding shaders[SVGA3D_SHADERTYPE_MAX];
 332 };
 333
 334
 335 /*
 336  * enum vmw_display_unit_type - Describes the display unit
 337  */
 338 enum vmw_display_unit_type {
 339         vmw_du_invalid = 0,
 340         vmw_du_legacy,
 341         vmw_du_screen_object,
 342         vmw_du_screen_target
 343 };
 344
 345
 346 struct vmw_sw_context{
 347         struct drm_open_hash res_ht;
 348         bool res_ht_initialized;
 349         bool kernel; /**< is the called made from the kernel */
 350         struct vmw_fpriv *fp;
 351         struct list_head validate_nodes;
 352         struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
 353         uint32_t cur_reloc;
 354         struct vmw_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS];
 355         uint32_t cur_val_buf;
 356         uint32_t *cmd_bounce;
 357         uint32_t cmd_bounce_size;
 358         struct list_head resource_list;
 359         struct vmw_dma_buffer *cur_query_bo;
 360         struct list_head res_relocations;
 361         uint32_t *buf_start;
 362         struct vmw_res_cache_entry res_cache[vmw_res_max];
 363         struct vmw_resource *last_query_ctx;
 364         bool needs_post_query_barrier;
 365         struct vmw_resource *error_resource;
 366         struct vmw_ctx_binding_state staged_bindings;
 367         struct list_head staged_cmd_res;
 368 };
 369
 370 struct vmw_legacy_display;
 371 struct vmw_overlay;
 372
 373 struct vmw_master {
 374         struct ttm_lock lock;
 375 };
 376
 377 struct vmw_vga_topology_state {
 378         uint32_t width;
 379         uint32_t height;
 380         uint32_t primary;
 381         uint32_t pos_x;
 382         uint32_t pos_y;
 383 };
 384
 385 struct vmw_private {
 386         struct ttm_bo_device bdev;
 387         struct ttm_bo_global_ref bo_global_ref;
 388         struct drm_global_reference mem_global_ref;
 389
 390         struct vmw_fifo_state fifo;
 391
 392         struct drm_device *dev;
 393         unsigned long vmw_chipset;
 394         unsigned int io_start;
 395         uint32_t vram_start;
 396         uint32_t vram_size;
 397         uint32_t prim_bb_mem;
 398         uint32_t mmio_start;
 399         uint32_t mmio_size;
 400         uint32_t fb_max_width;
 401         uint32_t fb_max_height;
 402         uint32_t texture_max_width;
 403         uint32_t texture_max_height;
 404         uint32_t stdu_max_width;
 405         uint32_t stdu_max_height;
 406         uint32_t initial_width;
 407         uint32_t initial_height;
 408         u32 __iomem *mmio_virt;
 409         int mmio_mtrr;
 410         uint32_t capabilities;
 411         uint32_t max_gmr_ids;
 412         uint32_t max_gmr_pages;
 413         uint32_t max_mob_pages;
 414         uint32_t max_mob_size;
 415         uint32_t memory_size;
 416         bool has_gmr;
 417         bool has_mob;
 418         spinlock_t hw_lock;
 419         spinlock_t cap_lock;
 420
 421         /*
 422          * VGA registers.
 423          */
 424
 425         struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS];
 426         uint32_t vga_width;
 427         uint32_t vga_height;
 428         uint32_t vga_bpp;
 429         uint32_t vga_bpl;
 430         uint32_t vga_pitchlock;
 431
 432         uint32_t num_displays;
 433
 434         /*
 435          * Framebuffer info.
 436          */
 437
 438         void *fb_info;
 439         enum vmw_display_unit_type active_display_unit;
 440         struct vmw_legacy_display *ldu_priv;
 441         struct vmw_screen_object_display *sou_priv;
 442         struct vmw_overlay *overlay_priv;
 443
 444         /*
 445          * Context and surface management.
 446          */
 447
 448         rwlock_t resource_lock;
 449         struct idr res_idr[vmw_res_max];
 450         /*
 451          * Block lastclose from racing with firstopen.
 452          */
 453
 454         struct mutex init_mutex;
 455
 456         /*
 457          * A resource manager for kernel-only surfaces and
 458          * contexts.
 459          */
 460
 461         struct ttm_object_device *tdev;
 462
 463         /*
 464          * Fencing and IRQs.
 465          */
 466
 467         atomic_t marker_seq;
 468         wait_queue_head_t fence_queue;
 469         wait_queue_head_t fifo_queue;
 470         spinlock_t waiter_lock;
 471         int fence_queue_waiters; /* Protected by waiter_lock */
 472         int goal_queue_waiters; /* Protected by waiter_lock */
 473         int cmdbuf_waiters; /* Protected by irq_lock */
 474         int error_waiters; /* Protected by irq_lock */
 475         atomic_t fifo_queue_waiters;
 476         uint32_t last_read_seqno;
 477         spinlock_t irq_lock;
 478         struct vmw_fence_manager *fman;
 479         uint32_t irq_mask;
 480
 481         /*
 482          * Device state
 483          */
 484
 485         uint32_t traces_state;
 486         uint32_t enable_state;
 487         uint32_t config_done_state;
 488
 489         /**
 490          * Execbuf
 491          */
 492         /**
 493          * Protected by the cmdbuf mutex.
 494          */
 495
 496         struct vmw_sw_context ctx;
 497         struct mutex cmdbuf_mutex;
 498         struct mutex binding_mutex;
 499
 500         /**
 501          * Operating mode.
 502          */
 503
 504         bool stealth;
 505         bool enable_fb;
 506         spinlock_t svga_lock;
 507
 508         /**
 509          * Master management.
 510          */
 511
 512         struct vmw_master *active_master;
 513         struct vmw_master fbdev_master;
 514         struct notifier_block pm_nb;
 515         bool suspended;
 516         bool refuse_hibernation;
 517
 518         struct mutex release_mutex;
 519         atomic_t num_fifo_resources;
 520
 521         /*
 522          * Replace this with an rwsem as soon as we have down_xx_interruptible()
 523          */
 524         struct ttm_lock reservation_sem;
 525
 526         /*
 527          * Query processing. These members
 528          * are protected by the cmdbuf mutex.
 529          */
 530
 531         struct vmw_dma_buffer *dummy_query_bo;
 532         struct vmw_dma_buffer *pinned_bo;
 533         uint32_t query_cid;
 534         uint32_t query_cid_valid;
 535         bool dummy_query_bo_pinned;
 536
 537         /*
 538          * Surface swapping. The "surface_lru" list is protected by the
 539          * resource lock in order to be able to destroy a surface and take
 540          * it off the lru atomically. "used_memory_size" is currently
 541          * protected by the cmdbuf mutex for simplicity.
 542          */
 543
 544         struct list_head res_lru[vmw_res_max];
 545         uint32_t used_memory_size;
 546
 547         /*
 548          * DMA mapping stuff.
 549          */
 550         enum vmw_dma_map_mode map_mode;
 551
 552         /*
 553          * Guest Backed stuff
 554          */
 555         struct ttm_buffer_object *otable_bo;
 556         struct vmw_otable *otables;
 557
 558         struct vmw_cmdbuf_man *cman;
 559 };
 560
 561 static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
 562 {
 563         return container_of(res, struct vmw_surface, res);
 564 }
 565
 566 static inline struct vmw_private *vmw_priv(struct drm_device *dev)
 567 {
 568         return (struct vmw_private *)dev->dev_private;
 569 }
 570
 571 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
 572 {
 573         return (struct vmw_fpriv *)file_priv->driver_priv;
 574 }
 575
 576 static inline struct vmw_master *vmw_master(struct drm_master *master)
 577 {
 578         return (struct vmw_master *) master->driver_priv;
 579 }
 580
 581 /*
 582  * The locking here is fine-grained, so that it is performed once
 583  * for every read- and write operation. This is of course costly, but we
 584  * don't perform much register access in the timing critical paths anyway.
 585  * Instead we have the extra benefit of being sure that we don't forget
 586  * the hw lock around register accesses.
 587  */
 588 static inline void vmw_write(struct vmw_private *dev_priv,
 589                              unsigned int offset, uint32_t value)
 590 {
 591         unsigned long irq_flags;
 592
 593         spin_lock_irqsave(&dev_priv->hw_lock, irq_flags);
 594         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 595         outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
 596         spin_unlock_irqrestore(&dev_priv->hw_lock, irq_flags);
 597 }
 598
 599 static inline uint32_t vmw_read(struct vmw_private *dev_priv,
 600                                 unsigned int offset)
 601 {
 602         unsigned long irq_flags;
 603         u32 val;
 604
 605         spin_lock_irqsave(&dev_priv->hw_lock, irq_flags);
 606         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 607         val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
 608         spin_unlock_irqrestore(&dev_priv->hw_lock, irq_flags);
 609
 610         return val;
 611 }
 612
 613 extern void vmw_svga_enable(struct vmw_private *dev_priv);
 614 extern void vmw_svga_disable(struct vmw_private *dev_priv);
 615
 616
 617 /**
 618  * GMR utilities - vmwgfx_gmr.c
 619  */
 620
 621 extern int vmw_gmr_bind(struct vmw_private *dev_priv,
 622                         const struct vmw_sg_table *vsgt,
 623                         unsigned long num_pages,
 624                         int gmr_id);
 625 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
 626
 627 /**
 628  * Resource utilities - vmwgfx_resource.c
 629  */
 630 struct vmw_user_resource_conv;
 631
 632 extern void vmw_resource_unreference(struct vmw_resource **p_res);
 633 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
 634 extern struct vmw_resource *
 635 vmw_resource_reference_unless_doomed(struct vmw_resource *res);
 636 extern int vmw_resource_validate(struct vmw_resource *res);
 637 extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
 638                                 bool no_backup);
 639 extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
 640 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
 641                                   struct ttm_object_file *tfile,
 642                                   uint32_t handle,
 643                                   struct vmw_surface **out_surf,
 644                                   struct vmw_dma_buffer **out_buf);
 645 extern int vmw_user_resource_lookup_handle(
 646         struct vmw_private *dev_priv,
 647         struct ttm_object_file *tfile,
 648         uint32_t handle,
 649         const struct vmw_user_resource_conv *converter,
 650         struct vmw_resource **p_res);
 651 extern void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo);
 652 extern int vmw_dmabuf_init(struct vmw_private *dev_priv,
 653                            struct vmw_dma_buffer *vmw_bo,
 654                            size_t size, struct ttm_placement *placement,
 655                            bool interuptable,
 656                            void (*bo_free) (struct ttm_buffer_object *bo));
 657 extern int vmw_user_dmabuf_verify_access(struct ttm_buffer_object *bo,
 658                                   struct ttm_object_file *tfile);
 659 extern int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv,
 660                                  struct ttm_object_file *tfile,
 661                                  uint32_t size,
 662                                  bool shareable,
 663                                  uint32_t *handle,
 664                                  struct vmw_dma_buffer **p_dma_buf);
 665 extern int vmw_user_dmabuf_reference(struct ttm_object_file *tfile,
 666                                      struct vmw_dma_buffer *dma_buf,
 667                                      uint32_t *handle);
 668 extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data,
 669                                   struct drm_file *file_priv);
 670 extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data,
 671                                   struct drm_file *file_priv);
 672 extern int vmw_user_dmabuf_synccpu_ioctl(struct drm_device *dev, void *data,
 673                                          struct drm_file *file_priv);
 674 extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo,
 675                                          uint32_t cur_validate_node);
 676 extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo);
 677 extern int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile,
 678                                   uint32_t id, struct vmw_dma_buffer **out);
 679 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
 680                                   struct drm_file *file_priv);
 681 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
 682                                   struct drm_file *file_priv);
 683 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
 684                                   struct ttm_object_file *tfile,
 685                                   uint32_t *inout_id,
 686                                   struct vmw_resource **out);
 687 extern void vmw_resource_unreserve(struct vmw_resource *res,
 688                                    struct vmw_dma_buffer *new_backup,
 689                                    unsigned long new_backup_offset);
 690 extern void vmw_resource_move_notify(struct ttm_buffer_object *bo,
 691                                      struct ttm_mem_reg *mem);
 692 extern void vmw_fence_single_bo(struct ttm_buffer_object *bo,
 693                                 struct vmw_fence_obj *fence);
 694 extern void vmw_resource_evict_all(struct vmw_private *dev_priv);
 695
 696 /**
 697  * DMA buffer helper routines - vmwgfx_dmabuf.c
 698  */
 699 extern int vmw_dmabuf_pin_in_placement(struct vmw_private *vmw_priv,
 700                                        struct vmw_dma_buffer *bo,
 701                                        struct ttm_placement *placement,
 702                                        bool interruptible);
 703 extern int vmw_dmabuf_pin_in_vram(struct vmw_private *dev_priv,
 704                                   struct vmw_dma_buffer *buf,
 705                                   bool interruptible);
 706 extern int vmw_dmabuf_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
 707                                          struct vmw_dma_buffer *buf,
 708                                          bool interruptible);
 709 extern int vmw_dmabuf_pin_in_start_of_vram(struct vmw_private *vmw_priv,
 710                                            struct vmw_dma_buffer *bo,
 711                                            bool interruptible);
 712 extern int vmw_dmabuf_unpin(struct vmw_private *vmw_priv,
 713                             struct vmw_dma_buffer *bo,
 714                             bool interruptible);
 715 extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
 716                                  SVGAGuestPtr *ptr);
 717 extern void vmw_bo_pin_reserved(struct vmw_dma_buffer *bo, bool pin);
 718
 719 /**
 720  * Misc Ioctl functionality - vmwgfx_ioctl.c
 721  */
 722
 723 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 724                               struct drm_file *file_priv);
 725 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
 726                                 struct drm_file *file_priv);
 727 extern int vmw_present_ioctl(struct drm_device *dev, void *data,
 728                              struct drm_file *file_priv);
 729 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
 730                                       struct drm_file *file_priv);
 731 extern unsigned int vmw_fops_poll(struct file *filp,
 732                                   struct poll_table_struct *wait);
 733 extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
 734                              size_t count, loff_t *offset);
 735
 736 /**
 737  * Fifo utilities - vmwgfx_fifo.c
 738  */
 739
 740 extern int vmw_fifo_init(struct vmw_private *dev_priv,
 741                          struct vmw_fifo_state *fifo);
 742 extern void vmw_fifo_release(struct vmw_private *dev_priv,
 743                              struct vmw_fifo_state *fifo);
 744 extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes);
 745 extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
 746 extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
 747                                uint32_t *seqno);
 748 extern void vmw_fifo_ping_host_locked(struct vmw_private *, uint32_t reason);
 749 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 750 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
 751 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
 752 extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv,
 753                                      uint32_t cid);
 754 extern int vmw_fifo_flush(struct vmw_private *dev_priv,
 755                           bool interruptible);
 756
 757 /**
 758  * TTM glue - vmwgfx_ttm_glue.c
 759  */
 760
 761 extern int vmw_ttm_global_init(struct vmw_private *dev_priv);
 762 extern void vmw_ttm_global_release(struct vmw_private *dev_priv);
 763 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 764
 765 /**
 766  * TTM buffer object driver - vmwgfx_buffer.c
 767  */
 768
 769 extern const size_t vmw_tt_size;
 770 extern struct ttm_placement vmw_vram_placement;
 771 extern struct ttm_placement vmw_vram_ne_placement;
 772 extern struct ttm_placement vmw_vram_sys_placement;
 773 extern struct ttm_placement vmw_vram_gmr_placement;
 774 extern struct ttm_placement vmw_vram_gmr_ne_placement;
 775 extern struct ttm_placement vmw_sys_placement;
 776 extern struct ttm_placement vmw_sys_ne_placement;
 777 extern struct ttm_placement vmw_evictable_placement;
 778 extern struct ttm_placement vmw_srf_placement;
 779 extern struct ttm_placement vmw_mob_placement;
 780 extern struct ttm_placement vmw_mob_ne_placement;
 781 extern struct ttm_bo_driver vmw_bo_driver;
 782 extern int vmw_dma_quiescent(struct drm_device *dev);
 783 extern int vmw_bo_map_dma(struct ttm_buffer_object *bo);
 784 extern void vmw_bo_unmap_dma(struct ttm_buffer_object *bo);
 785 extern const struct vmw_sg_table *
 786 vmw_bo_sg_table(struct ttm_buffer_object *bo);
 787 extern void vmw_piter_start(struct vmw_piter *viter,
 788                             const struct vmw_sg_table *vsgt,
 789                             unsigned long p_offs);
 790
 791 /**
 792  * vmw_piter_next - Advance the iterator one page.
 793  *
 794  * @viter: Pointer to the iterator to advance.
 795  *
 796  * Returns false if past the list of pages, true otherwise.
 797  */
 798 static inline bool vmw_piter_next(struct vmw_piter *viter)
 799 {
 800         return viter->next(viter);
 801 }
 802
 803 /**
 804  * vmw_piter_dma_addr - Return the DMA address of the current page.
 805  *
 806  * @viter: Pointer to the iterator
 807  *
 808  * Returns the DMA address of the page pointed to by @viter.
 809  */
 810 static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter)
 811 {
 812         return viter->dma_address(viter);
 813 }
 814
 815 /**
 816  * vmw_piter_page - Return a pointer to the current page.
 817  *
 818  * @viter: Pointer to the iterator
 819  *
 820  * Returns the DMA address of the page pointed to by @viter.
 821  */
 822 static inline struct page *vmw_piter_page(struct vmw_piter *viter)
 823 {
 824         return viter->page(viter);
 825 }
 826
 827 /**
 828  * Command submission - vmwgfx_execbuf.c
 829  */
 830
 831 extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 832                              struct drm_file *file_priv);
 833 extern int vmw_execbuf_process(struct drm_file *file_priv,
 834                                struct vmw_private *dev_priv,
 835                                void __user *user_commands,
 836                                void *kernel_commands,
 837                                uint32_t command_size,
 838                                uint64_t throttle_us,
 839                                struct drm_vmw_fence_rep __user
 840                                *user_fence_rep,
 841                                struct vmw_fence_obj **out_fence);
 842 extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
 843                                             struct vmw_fence_obj *fence);
 844 extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);
 845
 846 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
 847                                       struct vmw_private *dev_priv,
 848                                       struct vmw_fence_obj **p_fence,
 849                                       uint32_t *p_handle);
 850 extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
 851                                         struct vmw_fpriv *vmw_fp,
 852                                         int ret,
 853                                         struct drm_vmw_fence_rep __user
 854                                         *user_fence_rep,
 855                                         struct vmw_fence_obj *fence,
 856                                         uint32_t fence_handle);
 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
 862
 863 /**
 864  * IRQs and wating - vmwgfx_irq.c
 865  */
 866
 867 extern irqreturn_t vmw_irq_handler(int irq, void *arg);
 868 extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
 869                           uint32_t seqno, bool interruptible,
 870                           unsigned long timeout);
 871 extern void vmw_irq_preinstall(struct drm_device *dev);
 872 extern int vmw_irq_postinstall(struct drm_device *dev);
 873 extern void vmw_irq_uninstall(struct drm_device *dev);
 874 extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
 875                                 uint32_t seqno);
 876 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
 877                              bool lazy,
 878                              bool fifo_idle,
 879                              uint32_t seqno,
 880                              bool interruptible,
 881                              unsigned long timeout);
 882 extern void vmw_update_seqno(struct vmw_private *dev_priv,
 883                                 struct vmw_fifo_state *fifo_state);
 884 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
 885 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
 886 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
 887 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
 888 extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag,
 889                                    int *waiter_count);
 890 extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv,
 891                                       u32 flag, int *waiter_count);
 892
 893 /**
 894  * Rudimentary fence-like objects currently used only for throttling -
 895  * vmwgfx_marker.c
 896  */
 897
 898 extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
 899 extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
 900 extern int vmw_marker_push(struct vmw_marker_queue *queue,
 901                            uint32_t seqno);
 902 extern int vmw_marker_pull(struct vmw_marker_queue *queue,
 903                            uint32_t signaled_seqno);
 904 extern int vmw_wait_lag(struct vmw_private *dev_priv,
 905                         struct vmw_marker_queue *queue, uint32_t us);
 906
 907 /**
 908  * Kernel framebuffer - vmwgfx_fb.c
 909  */
 910
 911 int vmw_fb_init(struct vmw_private *vmw_priv);
 912 int vmw_fb_close(struct vmw_private *dev_priv);
 913 int vmw_fb_off(struct vmw_private *vmw_priv);
 914 int vmw_fb_on(struct vmw_private *vmw_priv);
 915
 916 /**
 917  * Kernel modesetting - vmwgfx_kms.c
 918  */
 919
 920 int vmw_kms_init(struct vmw_private *dev_priv);
 921 int vmw_kms_close(struct vmw_private *dev_priv);
 922 int vmw_kms_save_vga(struct vmw_private *vmw_priv);
 923 int vmw_kms_restore_vga(struct vmw_private *vmw_priv);
 924 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
 925                                 struct drm_file *file_priv);
 926 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
 927 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 928                           struct ttm_object_file *tfile,
 929                           struct ttm_buffer_object *bo,
 930                           SVGA3dCmdHeader *header);
 931 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
 932                        unsigned width, unsigned height, unsigned pitch,
 933                        unsigned bpp, unsigned depth);
 934 void vmw_kms_idle_workqueues(struct vmw_master *vmaster);
 935 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
 936                                 uint32_t pitch,
 937                                 uint32_t height);
 938 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc);
 939 int vmw_enable_vblank(struct drm_device *dev, int crtc);
 940 void vmw_disable_vblank(struct drm_device *dev, int crtc);
 941 int vmw_kms_present(struct vmw_private *dev_priv,
 942                     struct drm_file *file_priv,
 943                     struct vmw_framebuffer *vfb,
 944                     struct vmw_surface *surface,
 945                     uint32_t sid, int32_t destX, int32_t destY,
 946                     struct drm_vmw_rect *clips,
 947                     uint32_t num_clips);
 948 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 949                                 struct drm_file *file_priv);
 950
 951 int vmw_dumb_create(struct drm_file *file_priv,
 952                     struct drm_device *dev,
 953                     struct drm_mode_create_dumb *args);
 954
 955 int vmw_dumb_map_offset(struct drm_file *file_priv,
 956                         struct drm_device *dev, uint32_t handle,
 957                         uint64_t *offset);
 958 int vmw_dumb_destroy(struct drm_file *file_priv,
 959                      struct drm_device *dev,
 960                      uint32_t handle);
 961 extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible);
 962 extern void vmw_resource_unpin(struct vmw_resource *res);
 963
 964 /**
 965  * Overlay control - vmwgfx_overlay.c
 966  */
 967
 968 int vmw_overlay_init(struct vmw_private *dev_priv);
 969 int vmw_overlay_close(struct vmw_private *dev_priv);
 970 int vmw_overlay_ioctl(struct drm_device *dev, void *data,
 971                       struct drm_file *file_priv);
 972 int vmw_overlay_stop_all(struct vmw_private *dev_priv);
 973 int vmw_overlay_resume_all(struct vmw_private *dev_priv);
 974 int vmw_overlay_pause_all(struct vmw_private *dev_priv);
 975 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
 976 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
 977 int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
 978 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
 979
 980 /**
 981  * GMR Id manager
 982  */
 983
 984 extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func;
 985
 986 /**
 987  * Prime - vmwgfx_prime.c
 988  */
 989
 990 extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
 991 extern int vmw_prime_fd_to_handle(struct drm_device *dev,
 992                                   struct drm_file *file_priv,
 993                                   int fd, u32 *handle);
 994 extern int vmw_prime_handle_to_fd(struct drm_device *dev,
 995                                   struct drm_file *file_priv,
 996                                   uint32_t handle, uint32_t flags,
 997                                   int *prime_fd);
 998
 999 /*
1000  * MemoryOBject management -  vmwgfx_mob.c
1001  */
1002 struct vmw_mob;
1003 extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob,
1004                         const struct vmw_sg_table *vsgt,
1005                         unsigned long num_data_pages, int32_t mob_id);
1006 extern void vmw_mob_unbind(struct vmw_private *dev_priv,
1007                            struct vmw_mob *mob);
1008 extern void vmw_mob_destroy(struct vmw_mob *mob);
1009 extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
1010 extern int vmw_otables_setup(struct vmw_private *dev_priv);
1011 extern void vmw_otables_takedown(struct vmw_private *dev_priv);
1012
1013 /*
1014  * Context management - vmwgfx_context.c
1015  */
1016
1017 extern const struct vmw_user_resource_conv *user_context_converter;
1018
1019 extern struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv);
1020
1021 extern int vmw_context_check(struct vmw_private *dev_priv,
1022                              struct ttm_object_file *tfile,
1023                              int id,
1024                              struct vmw_resource **p_res);
1025 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
1026                                     struct drm_file *file_priv);
1027 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
1028                                      struct drm_file *file_priv);
1029 extern int vmw_context_binding_add(struct vmw_ctx_binding_state *cbs,
1030                                    const struct vmw_ctx_bindinfo *ci);
1031 extern void
1032 vmw_context_binding_state_transfer(struct vmw_resource *res,
1033                                    struct vmw_ctx_binding_state *cbs);
1034 extern void vmw_context_binding_res_list_kill(struct list_head *head);
1035 extern void vmw_context_binding_res_list_scrub(struct list_head *head);
1036 extern int vmw_context_rebind_all(struct vmw_resource *ctx);
1037 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1038 extern struct vmw_cmdbuf_res_manager *
1039 vmw_context_res_man(struct vmw_resource *ctx);
1040 /*
1041  * Surface management - vmwgfx_surface.c
1042  */
1043
1044 extern const struct vmw_user_resource_conv *user_surface_converter;
1045
1046 extern void vmw_surface_res_free(struct vmw_resource *res);
1047 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
1048                                      struct drm_file *file_priv);
1049 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
1050                                     struct drm_file *file_priv);
1051 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
1052                                        struct drm_file *file_priv);
1053 extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1054                                        struct drm_file *file_priv);
1055 extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1056                                           struct drm_file *file_priv);
1057 extern int vmw_surface_check(struct vmw_private *dev_priv,
1058                              struct ttm_object_file *tfile,
1059                              uint32_t handle, int *id);
1060 extern int vmw_surface_validate(struct vmw_private *dev_priv,
1061                                 struct vmw_surface *srf);
1062 int vmw_surface_gb_priv_define(struct drm_device *dev,
1063                                uint32_t user_accounting_size,
1064                                uint32_t svga3d_flags,
1065                                SVGA3dSurfaceFormat format,
1066                                bool for_scanout,
1067                                uint32_t num_mip_levels,
1068                                uint32_t multisample_count,
1069                                struct drm_vmw_size size,
1070                                struct vmw_surface **srf_out);
1071
1072 /*
1073  * Shader management - vmwgfx_shader.c
1074  */
1075
1076 extern const struct vmw_user_resource_conv *user_shader_converter;
1077
1078 extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
1079                                    struct drm_file *file_priv);
1080 extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
1081                                     struct drm_file *file_priv);
1082 extern int vmw_compat_shader_add(struct vmw_private *dev_priv,
1083                                  struct vmw_cmdbuf_res_manager *man,
1084                                  u32 user_key, const void *bytecode,
1085                                  SVGA3dShaderType shader_type,
1086                                  size_t size,
1087                                  struct list_head *list);
1088 extern int vmw_compat_shader_remove(struct vmw_cmdbuf_res_manager *man,
1089                                     u32 user_key, SVGA3dShaderType shader_type,
1090                                     struct list_head *list);
1091 extern struct vmw_resource *
1092 vmw_compat_shader_lookup(struct vmw_cmdbuf_res_manager *man,
1093                          u32 user_key, SVGA3dShaderType shader_type);
1094
1095 /*
1096  * Command buffer managed resources - vmwgfx_cmdbuf_res.c
1097  */
1098
1099 extern struct vmw_cmdbuf_res_manager *
1100 vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv);
1101 extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man);
1102 extern size_t vmw_cmdbuf_res_man_size(void);
1103 extern struct vmw_resource *
1104 vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man,
1105                       enum vmw_cmdbuf_res_type res_type,
1106                       u32 user_key);
1107 extern void vmw_cmdbuf_res_revert(struct list_head *list);
1108 extern void vmw_cmdbuf_res_commit(struct list_head *list);
1109 extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
1110                               enum vmw_cmdbuf_res_type res_type,
1111                               u32 user_key,
1112                               struct vmw_resource *res,
1113                               struct list_head *list);
1114 extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man,
1115                                  enum vmw_cmdbuf_res_type res_type,
1116                                  u32 user_key,
1117                                  struct list_head *list);
1118
1119
1120 /*
1121  * Command buffer managerment vmwgfx_cmdbuf.c
1122  */
1123 struct vmw_cmdbuf_man;
1124 struct vmw_cmdbuf_header;
1125
1126 extern struct vmw_cmdbuf_man *
1127 vmw_cmdbuf_man_create(struct vmw_private *dev_priv);
1128 extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man,
1129                                     size_t size, size_t default_size);
1130 extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man);
1131 extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man);
1132 extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible,
1133                            unsigned long timeout);
1134 extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size,
1135                                 int ctx_id, bool interruptible,
1136                                 struct vmw_cmdbuf_header *header);
1137 extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size,
1138                               struct vmw_cmdbuf_header *header,
1139                               bool flush);
1140 extern void vmw_cmdbuf_tasklet_schedule(struct vmw_cmdbuf_man *man);
1141 extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man,
1142                               size_t size, bool interruptible,
1143                               struct vmw_cmdbuf_header **p_header);
1144 extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header);
1145 extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man,
1146                                 bool interruptible);
1147
1148
1149 /**
1150  * Inline helper functions
1151  */
1152
1153 static inline void vmw_surface_unreference(struct vmw_surface **srf)
1154 {
1155         struct vmw_surface *tmp_srf = *srf;
1156         struct vmw_resource *res = &tmp_srf->res;
1157         *srf = NULL;
1158
1159         vmw_resource_unreference(&res);
1160 }
1161
1162 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
1163 {
1164         (void) vmw_resource_reference(&srf->res);
1165         return srf;
1166 }
1167
1168 static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf)
1169 {
1170         struct vmw_dma_buffer *tmp_buf = *buf;
1171
1172         *buf = NULL;
1173         if (tmp_buf != NULL) {
1174                 struct ttm_buffer_object *bo = &tmp_buf->base;
1175
1176                 ttm_bo_unref(&bo);
1177         }
1178 }
1179
1180 static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf)
1181 {
1182         if (ttm_bo_reference(&buf->base))
1183                 return buf;
1184         return NULL;
1185 }
1186
1187 static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
1188 {
1189         return (struct ttm_mem_global *) dev_priv->mem_global_ref.object;
1190 }
1191
1192 static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv)
1193 {
1194         atomic_inc(&dev_priv->num_fifo_resources);
1195 }
1196
1197 static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv)
1198 {
1199         atomic_dec(&dev_priv->num_fifo_resources);
1200 }
1201 #endif