linux/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
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   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 <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 "20160210"
  44#define VMWGFX_DRIVER_MAJOR 2
  45#define VMWGFX_DRIVER_MINOR 10
  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_DXCONTEXT 256
  63#define VMWGFX_NUM_DXQUERY 512
  64#define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\
  65                        VMWGFX_NUM_GB_SHADER +\
  66                        VMWGFX_NUM_GB_SURFACE +\
  67                        VMWGFX_NUM_GB_SCREEN_TARGET)
  68
  69#define VMW_PL_GMR TTM_PL_PRIV0
  70#define VMW_PL_FLAG_GMR TTM_PL_FLAG_PRIV0
  71#define VMW_PL_MOB TTM_PL_PRIV1
  72#define VMW_PL_FLAG_MOB TTM_PL_FLAG_PRIV1
  73
  74#define VMW_RES_CONTEXT ttm_driver_type0
  75#define VMW_RES_SURFACE ttm_driver_type1
  76#define VMW_RES_STREAM ttm_driver_type2
  77#define VMW_RES_FENCE ttm_driver_type3
  78#define VMW_RES_SHADER ttm_driver_type4
  79
  80struct vmw_fpriv {
  81        struct drm_master *locked_master;
  82        struct ttm_object_file *tfile;
  83        bool gb_aware;
  84};
  85
  86struct vmw_dma_buffer {
  87        struct ttm_buffer_object base;
  88        struct list_head res_list;
  89        s32 pin_count;
  90        /* Not ref-counted.  Protected by binding_mutex */
  91        struct vmw_resource *dx_query_ctx;
  92};
  93
  94/**
  95 * struct vmw_validate_buffer - Carries validation info about buffers.
  96 *
  97 * @base: Validation info for TTM.
  98 * @hash: Hash entry for quick lookup of the TTM buffer object.
  99 *
 100 * This structure contains also driver private validation info
 101 * on top of the info needed by TTM.
 102 */
 103struct vmw_validate_buffer {
 104        struct ttm_validate_buffer base;
 105        struct drm_hash_item hash;
 106        bool validate_as_mob;
 107};
 108
 109struct vmw_res_func;
 110struct vmw_resource {
 111        struct kref kref;
 112        struct vmw_private *dev_priv;
 113        int id;
 114        bool avail;
 115        unsigned long backup_size;
 116        bool res_dirty; /* Protected by backup buffer reserved */
 117        bool backup_dirty; /* Protected by backup buffer reserved */
 118        struct vmw_dma_buffer *backup;
 119        unsigned long backup_offset;
 120        unsigned long pin_count; /* Protected by resource reserved */
 121        const struct vmw_res_func *func;
 122        struct list_head lru_head; /* Protected by the resource lock */
 123        struct list_head mob_head; /* Protected by @backup reserved */
 124        struct list_head binding_head; /* Protected by binding_mutex */
 125        void (*res_free) (struct vmw_resource *res);
 126        void (*hw_destroy) (struct vmw_resource *res);
 127};
 128
 129
 130/*
 131 * Resources that are managed using ioctls.
 132 */
 133enum vmw_res_type {
 134        vmw_res_context,
 135        vmw_res_surface,
 136        vmw_res_stream,
 137        vmw_res_shader,
 138        vmw_res_dx_context,
 139        vmw_res_cotable,
 140        vmw_res_view,
 141        vmw_res_max
 142};
 143
 144/*
 145 * Resources that are managed using command streams.
 146 */
 147enum vmw_cmdbuf_res_type {
 148        vmw_cmdbuf_res_shader,
 149        vmw_cmdbuf_res_view
 150};
 151
 152struct vmw_cmdbuf_res_manager;
 153
 154struct vmw_cursor_snooper {
 155        struct drm_crtc *crtc;
 156        size_t age;
 157        uint32_t *image;
 158};
 159
 160struct vmw_framebuffer;
 161struct vmw_surface_offset;
 162
 163struct vmw_surface {
 164        struct vmw_resource res;
 165        uint32_t flags;
 166        uint32_t format;
 167        uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 168        struct drm_vmw_size base_size;
 169        struct drm_vmw_size *sizes;
 170        uint32_t num_sizes;
 171        bool scanout;
 172        uint32_t array_size;
 173        /* TODO so far just a extra pointer */
 174        struct vmw_cursor_snooper snooper;
 175        struct vmw_surface_offset *offsets;
 176        SVGA3dTextureFilter autogen_filter;
 177        uint32_t multisample_count;
 178        struct list_head view_list;
 179};
 180
 181struct vmw_marker_queue {
 182        struct list_head head;
 183        u64 lag;
 184        u64 lag_time;
 185        spinlock_t lock;
 186};
 187
 188struct vmw_fifo_state {
 189        unsigned long reserved_size;
 190        u32 *dynamic_buffer;
 191        u32 *static_buffer;
 192        unsigned long static_buffer_size;
 193        bool using_bounce_buffer;
 194        uint32_t capabilities;
 195        struct mutex fifo_mutex;
 196        struct rw_semaphore rwsem;
 197        struct vmw_marker_queue marker_queue;
 198        bool dx;
 199};
 200
 201struct vmw_relocation {
 202        SVGAMobId *mob_loc;
 203        SVGAGuestPtr *location;
 204        uint32_t index;
 205};
 206
 207/**
 208 * struct vmw_res_cache_entry - resource information cache entry
 209 *
 210 * @valid: Whether the entry is valid, which also implies that the execbuf
 211 * code holds a reference to the resource, and it's placed on the
 212 * validation list.
 213 * @handle: User-space handle of a resource.
 214 * @res: Non-ref-counted pointer to the resource.
 215 *
 216 * Used to avoid frequent repeated user-space handle lookups of the
 217 * same resource.
 218 */
 219struct vmw_res_cache_entry {
 220        bool valid;
 221        uint32_t handle;
 222        struct vmw_resource *res;
 223        struct vmw_resource_val_node *node;
 224};
 225
 226/**
 227 * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
 228 */
 229enum vmw_dma_map_mode {
 230        vmw_dma_phys,           /* Use physical page addresses */
 231        vmw_dma_alloc_coherent, /* Use TTM coherent pages */
 232        vmw_dma_map_populate,   /* Unmap from DMA just after unpopulate */
 233        vmw_dma_map_bind,       /* Unmap from DMA just before unbind */
 234        vmw_dma_map_max
 235};
 236
 237/**
 238 * struct vmw_sg_table - Scatter/gather table for binding, with additional
 239 * device-specific information.
 240 *
 241 * @sgt: Pointer to a struct sg_table with binding information
 242 * @num_regions: Number of regions with device-address contiguous pages
 243 */
 244struct vmw_sg_table {
 245        enum vmw_dma_map_mode mode;
 246        struct page **pages;
 247        const dma_addr_t *addrs;
 248        struct sg_table *sgt;
 249        unsigned long num_regions;
 250        unsigned long num_pages;
 251};
 252
 253/**
 254 * struct vmw_piter - Page iterator that iterates over a list of pages
 255 * and DMA addresses that could be either a scatter-gather list or
 256 * arrays
 257 *
 258 * @pages: Array of page pointers to the pages.
 259 * @addrs: DMA addresses to the pages if coherent pages are used.
 260 * @iter: Scatter-gather page iterator. Current position in SG list.
 261 * @i: Current position in arrays.
 262 * @num_pages: Number of pages total.
 263 * @next: Function to advance the iterator. Returns false if past the list
 264 * of pages, true otherwise.
 265 * @dma_address: Function to return the DMA address of the current page.
 266 */
 267struct vmw_piter {
 268        struct page **pages;
 269        const dma_addr_t *addrs;
 270        struct sg_page_iter iter;
 271        unsigned long i;
 272        unsigned long num_pages;
 273        bool (*next)(struct vmw_piter *);
 274        dma_addr_t (*dma_address)(struct vmw_piter *);
 275        struct page *(*page)(struct vmw_piter *);
 276};
 277
 278/*
 279 * enum vmw_display_unit_type - Describes the display unit
 280 */
 281enum vmw_display_unit_type {
 282        vmw_du_invalid = 0,
 283        vmw_du_legacy,
 284        vmw_du_screen_object,
 285        vmw_du_screen_target
 286};
 287
 288
 289struct vmw_sw_context{
 290        struct drm_open_hash res_ht;
 291        bool res_ht_initialized;
 292        bool kernel; /**< is the called made from the kernel */
 293        struct vmw_fpriv *fp;
 294        struct list_head validate_nodes;
 295        struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
 296        uint32_t cur_reloc;
 297        struct vmw_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS];
 298        uint32_t cur_val_buf;
 299        uint32_t *cmd_bounce;
 300        uint32_t cmd_bounce_size;
 301        struct list_head resource_list;
 302        struct list_head ctx_resource_list; /* For contexts and cotables */
 303        struct vmw_dma_buffer *cur_query_bo;
 304        struct list_head res_relocations;
 305        uint32_t *buf_start;
 306        struct vmw_res_cache_entry res_cache[vmw_res_max];
 307        struct vmw_resource *last_query_ctx;
 308        bool needs_post_query_barrier;
 309        struct vmw_resource *error_resource;
 310        struct vmw_ctx_binding_state *staged_bindings;
 311        bool staged_bindings_inuse;
 312        struct list_head staged_cmd_res;
 313        struct vmw_resource_val_node *dx_ctx_node;
 314        struct vmw_dma_buffer *dx_query_mob;
 315        struct vmw_resource *dx_query_ctx;
 316        struct vmw_cmdbuf_res_manager *man;
 317};
 318
 319struct vmw_legacy_display;
 320struct vmw_overlay;
 321
 322struct vmw_master {
 323        struct ttm_lock lock;
 324};
 325
 326struct vmw_vga_topology_state {
 327        uint32_t width;
 328        uint32_t height;
 329        uint32_t primary;
 330        uint32_t pos_x;
 331        uint32_t pos_y;
 332};
 333
 334
 335/*
 336 * struct vmw_otable - Guest Memory OBject table metadata
 337 *
 338 * @size:           Size of the table (page-aligned).
 339 * @page_table:     Pointer to a struct vmw_mob holding the page table.
 340 */
 341struct vmw_otable {
 342        unsigned long size;
 343        struct vmw_mob *page_table;
 344        bool enabled;
 345};
 346
 347struct vmw_otable_batch {
 348        unsigned num_otables;
 349        struct vmw_otable *otables;
 350        struct vmw_resource *context;
 351        struct ttm_buffer_object *otable_bo;
 352};
 353
 354struct vmw_private {
 355        struct ttm_bo_device bdev;
 356        struct ttm_bo_global_ref bo_global_ref;
 357        struct drm_global_reference mem_global_ref;
 358
 359        struct vmw_fifo_state fifo;
 360
 361        struct drm_device *dev;
 362        unsigned long vmw_chipset;
 363        unsigned int io_start;
 364        uint32_t vram_start;
 365        uint32_t vram_size;
 366        uint32_t prim_bb_mem;
 367        uint32_t mmio_start;
 368        uint32_t mmio_size;
 369        uint32_t fb_max_width;
 370        uint32_t fb_max_height;
 371        uint32_t texture_max_width;
 372        uint32_t texture_max_height;
 373        uint32_t stdu_max_width;
 374        uint32_t stdu_max_height;
 375        uint32_t initial_width;
 376        uint32_t initial_height;
 377        u32 *mmio_virt;
 378        uint32_t capabilities;
 379        uint32_t max_gmr_ids;
 380        uint32_t max_gmr_pages;
 381        uint32_t max_mob_pages;
 382        uint32_t max_mob_size;
 383        uint32_t memory_size;
 384        bool has_gmr;
 385        bool has_mob;
 386        spinlock_t hw_lock;
 387        spinlock_t cap_lock;
 388        bool has_dx;
 389
 390        /*
 391         * VGA registers.
 392         */
 393
 394        struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS];
 395        uint32_t vga_width;
 396        uint32_t vga_height;
 397        uint32_t vga_bpp;
 398        uint32_t vga_bpl;
 399        uint32_t vga_pitchlock;
 400
 401        uint32_t num_displays;
 402
 403        /*
 404         * Framebuffer info.
 405         */
 406
 407        void *fb_info;
 408        enum vmw_display_unit_type active_display_unit;
 409        struct vmw_legacy_display *ldu_priv;
 410        struct vmw_overlay *overlay_priv;
 411        struct drm_property *hotplug_mode_update_property;
 412        struct drm_property *implicit_placement_property;
 413        unsigned num_implicit;
 414        struct vmw_framebuffer *implicit_fb;
 415
 416        /*
 417         * Context and surface management.
 418         */
 419
 420        rwlock_t resource_lock;
 421        struct idr res_idr[vmw_res_max];
 422        /*
 423         * Block lastclose from racing with firstopen.
 424         */
 425
 426        struct mutex init_mutex;
 427
 428        /*
 429         * A resource manager for kernel-only surfaces and
 430         * contexts.
 431         */
 432
 433        struct ttm_object_device *tdev;
 434
 435        /*
 436         * Fencing and IRQs.
 437         */
 438
 439        atomic_t marker_seq;
 440        wait_queue_head_t fence_queue;
 441        wait_queue_head_t fifo_queue;
 442        spinlock_t waiter_lock;
 443        int fence_queue_waiters; /* Protected by waiter_lock */
 444        int goal_queue_waiters; /* Protected by waiter_lock */
 445        int cmdbuf_waiters; /* Protected by waiter_lock */
 446        int error_waiters; /* Protected by waiter_lock */
 447        int fifo_queue_waiters; /* Protected by waiter_lock */
 448        uint32_t last_read_seqno;
 449        struct vmw_fence_manager *fman;
 450        uint32_t irq_mask; /* Updates protected by waiter_lock */
 451
 452        /*
 453         * Device state
 454         */
 455
 456        uint32_t traces_state;
 457        uint32_t enable_state;
 458        uint32_t config_done_state;
 459
 460        /**
 461         * Execbuf
 462         */
 463        /**
 464         * Protected by the cmdbuf mutex.
 465         */
 466
 467        struct vmw_sw_context ctx;
 468        struct mutex cmdbuf_mutex;
 469        struct mutex binding_mutex;
 470
 471        /**
 472         * Operating mode.
 473         */
 474
 475        bool stealth;
 476        bool enable_fb;
 477        spinlock_t svga_lock;
 478
 479        /**
 480         * Master management.
 481         */
 482
 483        struct vmw_master *active_master;
 484        struct vmw_master fbdev_master;
 485        struct notifier_block pm_nb;
 486        bool suspended;
 487        bool refuse_hibernation;
 488
 489        struct mutex release_mutex;
 490        atomic_t num_fifo_resources;
 491
 492        /*
 493         * Replace this with an rwsem as soon as we have down_xx_interruptible()
 494         */
 495        struct ttm_lock reservation_sem;
 496
 497        /*
 498         * Query processing. These members
 499         * are protected by the cmdbuf mutex.
 500         */
 501
 502        struct vmw_dma_buffer *dummy_query_bo;
 503        struct vmw_dma_buffer *pinned_bo;
 504        uint32_t query_cid;
 505        uint32_t query_cid_valid;
 506        bool dummy_query_bo_pinned;
 507
 508        /*
 509         * Surface swapping. The "surface_lru" list is protected by the
 510         * resource lock in order to be able to destroy a surface and take
 511         * it off the lru atomically. "used_memory_size" is currently
 512         * protected by the cmdbuf mutex for simplicity.
 513         */
 514
 515        struct list_head res_lru[vmw_res_max];
 516        uint32_t used_memory_size;
 517
 518        /*
 519         * DMA mapping stuff.
 520         */
 521        enum vmw_dma_map_mode map_mode;
 522
 523        /*
 524         * Guest Backed stuff
 525         */
 526        struct vmw_otable_batch otable_batch;
 527
 528        struct vmw_cmdbuf_man *cman;
 529};
 530
 531static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
 532{
 533        return container_of(res, struct vmw_surface, res);
 534}
 535
 536static inline struct vmw_private *vmw_priv(struct drm_device *dev)
 537{
 538        return (struct vmw_private *)dev->dev_private;
 539}
 540
 541static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
 542{
 543        return (struct vmw_fpriv *)file_priv->driver_priv;
 544}
 545
 546static inline struct vmw_master *vmw_master(struct drm_master *master)
 547{
 548        return (struct vmw_master *) master->driver_priv;
 549}
 550
 551/*
 552 * The locking here is fine-grained, so that it is performed once
 553 * for every read- and write operation. This is of course costly, but we
 554 * don't perform much register access in the timing critical paths anyway.
 555 * Instead we have the extra benefit of being sure that we don't forget
 556 * the hw lock around register accesses.
 557 */
 558static inline void vmw_write(struct vmw_private *dev_priv,
 559                             unsigned int offset, uint32_t value)
 560{
 561        unsigned long irq_flags;
 562
 563        spin_lock_irqsave(&dev_priv->hw_lock, irq_flags);
 564        outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 565        outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
 566        spin_unlock_irqrestore(&dev_priv->hw_lock, irq_flags);
 567}
 568
 569static inline uint32_t vmw_read(struct vmw_private *dev_priv,
 570                                unsigned int offset)
 571{
 572        unsigned long irq_flags;
 573        u32 val;
 574
 575        spin_lock_irqsave(&dev_priv->hw_lock, irq_flags);
 576        outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 577        val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
 578        spin_unlock_irqrestore(&dev_priv->hw_lock, irq_flags);
 579
 580        return val;
 581}
 582
 583extern void vmw_svga_enable(struct vmw_private *dev_priv);
 584extern void vmw_svga_disable(struct vmw_private *dev_priv);
 585
 586
 587/**
 588 * GMR utilities - vmwgfx_gmr.c
 589 */
 590
 591extern int vmw_gmr_bind(struct vmw_private *dev_priv,
 592                        const struct vmw_sg_table *vsgt,
 593                        unsigned long num_pages,
 594                        int gmr_id);
 595extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
 596
 597/**
 598 * Resource utilities - vmwgfx_resource.c
 599 */
 600struct vmw_user_resource_conv;
 601
 602extern void vmw_resource_unreference(struct vmw_resource **p_res);
 603extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
 604extern struct vmw_resource *
 605vmw_resource_reference_unless_doomed(struct vmw_resource *res);
 606extern int vmw_resource_validate(struct vmw_resource *res);
 607extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
 608                                bool no_backup);
 609extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
 610extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
 611                                  struct ttm_object_file *tfile,
 612                                  uint32_t handle,
 613                                  struct vmw_surface **out_surf,
 614                                  struct vmw_dma_buffer **out_buf);
 615extern int vmw_user_resource_lookup_handle(
 616        struct vmw_private *dev_priv,
 617        struct ttm_object_file *tfile,
 618        uint32_t handle,
 619        const struct vmw_user_resource_conv *converter,
 620        struct vmw_resource **p_res);
 621extern void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo);
 622extern int vmw_dmabuf_init(struct vmw_private *dev_priv,
 623                           struct vmw_dma_buffer *vmw_bo,
 624                           size_t size, struct ttm_placement *placement,
 625                           bool interuptable,
 626                           void (*bo_free) (struct ttm_buffer_object *bo));
 627extern int vmw_user_dmabuf_verify_access(struct ttm_buffer_object *bo,
 628                                  struct ttm_object_file *tfile);
 629extern int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv,
 630                                 struct ttm_object_file *tfile,
 631                                 uint32_t size,
 632                                 bool shareable,
 633                                 uint32_t *handle,
 634                                 struct vmw_dma_buffer **p_dma_buf,
 635                                 struct ttm_base_object **p_base);
 636extern int vmw_user_dmabuf_reference(struct ttm_object_file *tfile,
 637                                     struct vmw_dma_buffer *dma_buf,
 638                                     uint32_t *handle);
 639extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data,
 640                                  struct drm_file *file_priv);
 641extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data,
 642                                  struct drm_file *file_priv);
 643extern int vmw_user_dmabuf_synccpu_ioctl(struct drm_device *dev, void *data,
 644                                         struct drm_file *file_priv);
 645extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo,
 646                                         uint32_t cur_validate_node);
 647extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo);
 648extern int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile,
 649                                  uint32_t id, struct vmw_dma_buffer **out,
 650                                  struct ttm_base_object **base);
 651extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
 652                                  struct drm_file *file_priv);
 653extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
 654                                  struct drm_file *file_priv);
 655extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
 656                                  struct ttm_object_file *tfile,
 657                                  uint32_t *inout_id,
 658                                  struct vmw_resource **out);
 659extern void vmw_resource_unreserve(struct vmw_resource *res,
 660                                   bool switch_backup,
 661                                   struct vmw_dma_buffer *new_backup,
 662                                   unsigned long new_backup_offset);
 663extern void vmw_resource_move_notify(struct ttm_buffer_object *bo,
 664                                     struct ttm_mem_reg *mem);
 665extern void vmw_query_move_notify(struct ttm_buffer_object *bo,
 666                                  struct ttm_mem_reg *mem);
 667extern int vmw_query_readback_all(struct vmw_dma_buffer *dx_query_mob);
 668extern void vmw_fence_single_bo(struct ttm_buffer_object *bo,
 669                                struct vmw_fence_obj *fence);
 670extern void vmw_resource_evict_all(struct vmw_private *dev_priv);
 671
 672/**
 673 * DMA buffer helper routines - vmwgfx_dmabuf.c
 674 */
 675extern int vmw_dmabuf_pin_in_placement(struct vmw_private *vmw_priv,
 676                                       struct vmw_dma_buffer *bo,
 677                                       struct ttm_placement *placement,
 678                                       bool interruptible);
 679extern int vmw_dmabuf_pin_in_vram(struct vmw_private *dev_priv,
 680                                  struct vmw_dma_buffer *buf,
 681                                  bool interruptible);
 682extern int vmw_dmabuf_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
 683                                         struct vmw_dma_buffer *buf,
 684                                         bool interruptible);
 685extern int vmw_dmabuf_pin_in_start_of_vram(struct vmw_private *vmw_priv,
 686                                           struct vmw_dma_buffer *bo,
 687                                           bool interruptible);
 688extern int vmw_dmabuf_unpin(struct vmw_private *vmw_priv,
 689                            struct vmw_dma_buffer *bo,
 690                            bool interruptible);
 691extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
 692                                 SVGAGuestPtr *ptr);
 693extern void vmw_bo_pin_reserved(struct vmw_dma_buffer *bo, bool pin);
 694
 695/**
 696 * Misc Ioctl functionality - vmwgfx_ioctl.c
 697 */
 698
 699extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 700                              struct drm_file *file_priv);
 701extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
 702                                struct drm_file *file_priv);
 703extern int vmw_present_ioctl(struct drm_device *dev, void *data,
 704                             struct drm_file *file_priv);
 705extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
 706                                      struct drm_file *file_priv);
 707extern unsigned int vmw_fops_poll(struct file *filp,
 708                                  struct poll_table_struct *wait);
 709extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
 710                             size_t count, loff_t *offset);
 711
 712/**
 713 * Fifo utilities - vmwgfx_fifo.c
 714 */
 715
 716extern int vmw_fifo_init(struct vmw_private *dev_priv,
 717                         struct vmw_fifo_state *fifo);
 718extern void vmw_fifo_release(struct vmw_private *dev_priv,
 719                             struct vmw_fifo_state *fifo);
 720extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes);
 721extern void *
 722vmw_fifo_reserve_dx(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id);
 723extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
 724extern void vmw_fifo_commit_flush(struct vmw_private *dev_priv, uint32_t bytes);
 725extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
 726                               uint32_t *seqno);
 727extern void vmw_fifo_ping_host_locked(struct vmw_private *, uint32_t reason);
 728extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 729extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
 730extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
 731extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv,
 732                                     uint32_t cid);
 733extern int vmw_fifo_flush(struct vmw_private *dev_priv,
 734                          bool interruptible);
 735
 736/**
 737 * TTM glue - vmwgfx_ttm_glue.c
 738 */
 739
 740extern int vmw_ttm_global_init(struct vmw_private *dev_priv);
 741extern void vmw_ttm_global_release(struct vmw_private *dev_priv);
 742extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 743
 744/**
 745 * TTM buffer object driver - vmwgfx_buffer.c
 746 */
 747
 748extern const size_t vmw_tt_size;
 749extern struct ttm_placement vmw_vram_placement;
 750extern struct ttm_placement vmw_vram_ne_placement;
 751extern struct ttm_placement vmw_vram_sys_placement;
 752extern struct ttm_placement vmw_vram_gmr_placement;
 753extern struct ttm_placement vmw_vram_gmr_ne_placement;
 754extern struct ttm_placement vmw_sys_placement;
 755extern struct ttm_placement vmw_sys_ne_placement;
 756extern struct ttm_placement vmw_evictable_placement;
 757extern struct ttm_placement vmw_srf_placement;
 758extern struct ttm_placement vmw_mob_placement;
 759extern struct ttm_placement vmw_mob_ne_placement;
 760extern struct ttm_bo_driver vmw_bo_driver;
 761extern int vmw_dma_quiescent(struct drm_device *dev);
 762extern int vmw_bo_map_dma(struct ttm_buffer_object *bo);
 763extern void vmw_bo_unmap_dma(struct ttm_buffer_object *bo);
 764extern const struct vmw_sg_table *
 765vmw_bo_sg_table(struct ttm_buffer_object *bo);
 766extern void vmw_piter_start(struct vmw_piter *viter,
 767                            const struct vmw_sg_table *vsgt,
 768                            unsigned long p_offs);
 769
 770/**
 771 * vmw_piter_next - Advance the iterator one page.
 772 *
 773 * @viter: Pointer to the iterator to advance.
 774 *
 775 * Returns false if past the list of pages, true otherwise.
 776 */
 777static inline bool vmw_piter_next(struct vmw_piter *viter)
 778{
 779        return viter->next(viter);
 780}
 781
 782/**
 783 * vmw_piter_dma_addr - Return the DMA address of the current page.
 784 *
 785 * @viter: Pointer to the iterator
 786 *
 787 * Returns the DMA address of the page pointed to by @viter.
 788 */
 789static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter)
 790{
 791        return viter->dma_address(viter);
 792}
 793
 794/**
 795 * vmw_piter_page - Return a pointer to the current page.
 796 *
 797 * @viter: Pointer to the iterator
 798 *
 799 * Returns the DMA address of the page pointed to by @viter.
 800 */
 801static inline struct page *vmw_piter_page(struct vmw_piter *viter)
 802{
 803        return viter->page(viter);
 804}
 805
 806/**
 807 * Command submission - vmwgfx_execbuf.c
 808 */
 809
 810extern int vmw_execbuf_ioctl(struct drm_device *dev, unsigned long data,
 811                             struct drm_file *file_priv, size_t size);
 812extern int vmw_execbuf_process(struct drm_file *file_priv,
 813                               struct vmw_private *dev_priv,
 814                               void __user *user_commands,
 815                               void *kernel_commands,
 816                               uint32_t command_size,
 817                               uint64_t throttle_us,
 818                               uint32_t dx_context_handle,
 819                               struct drm_vmw_fence_rep __user
 820                               *user_fence_rep,
 821                               struct vmw_fence_obj **out_fence);
 822extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
 823                                            struct vmw_fence_obj *fence);
 824extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);
 825
 826extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
 827                                      struct vmw_private *dev_priv,
 828                                      struct vmw_fence_obj **p_fence,
 829                                      uint32_t *p_handle);
 830extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
 831                                        struct vmw_fpriv *vmw_fp,
 832                                        int ret,
 833                                        struct drm_vmw_fence_rep __user
 834                                        *user_fence_rep,
 835                                        struct vmw_fence_obj *fence,
 836                                        uint32_t fence_handle);
 837extern int vmw_validate_single_buffer(struct vmw_private *dev_priv,
 838                                      struct ttm_buffer_object *bo,
 839                                      bool interruptible,
 840                                      bool validate_as_mob);
 841
 842
 843/**
 844 * IRQs and wating - vmwgfx_irq.c
 845 */
 846
 847extern irqreturn_t vmw_irq_handler(int irq, void *arg);
 848extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
 849                          uint32_t seqno, bool interruptible,
 850                          unsigned long timeout);
 851extern void vmw_irq_preinstall(struct drm_device *dev);
 852extern int vmw_irq_postinstall(struct drm_device *dev);
 853extern void vmw_irq_uninstall(struct drm_device *dev);
 854extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
 855                                uint32_t seqno);
 856extern int vmw_fallback_wait(struct vmw_private *dev_priv,
 857                             bool lazy,
 858                             bool fifo_idle,
 859                             uint32_t seqno,
 860                             bool interruptible,
 861                             unsigned long timeout);
 862extern void vmw_update_seqno(struct vmw_private *dev_priv,
 863                                struct vmw_fifo_state *fifo_state);
 864extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
 865extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
 866extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
 867extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
 868extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag,
 869                                   int *waiter_count);
 870extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv,
 871                                      u32 flag, int *waiter_count);
 872
 873/**
 874 * Rudimentary fence-like objects currently used only for throttling -
 875 * vmwgfx_marker.c
 876 */
 877
 878extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
 879extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
 880extern int vmw_marker_push(struct vmw_marker_queue *queue,
 881                           uint32_t seqno);
 882extern int vmw_marker_pull(struct vmw_marker_queue *queue,
 883                           uint32_t signaled_seqno);
 884extern int vmw_wait_lag(struct vmw_private *dev_priv,
 885                        struct vmw_marker_queue *queue, uint32_t us);
 886
 887/**
 888 * Kernel framebuffer - vmwgfx_fb.c
 889 */
 890
 891int vmw_fb_init(struct vmw_private *vmw_priv);
 892int vmw_fb_close(struct vmw_private *dev_priv);
 893int vmw_fb_off(struct vmw_private *vmw_priv);
 894int vmw_fb_on(struct vmw_private *vmw_priv);
 895
 896/**
 897 * Kernel modesetting - vmwgfx_kms.c
 898 */
 899
 900int vmw_kms_init(struct vmw_private *dev_priv);
 901int vmw_kms_close(struct vmw_private *dev_priv);
 902int vmw_kms_save_vga(struct vmw_private *vmw_priv);
 903int vmw_kms_restore_vga(struct vmw_private *vmw_priv);
 904int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
 905                                struct drm_file *file_priv);
 906void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
 907void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 908                          struct ttm_object_file *tfile,
 909                          struct ttm_buffer_object *bo,
 910                          SVGA3dCmdHeader *header);
 911int vmw_kms_write_svga(struct vmw_private *vmw_priv,
 912                       unsigned width, unsigned height, unsigned pitch,
 913                       unsigned bpp, unsigned depth);
 914void vmw_kms_idle_workqueues(struct vmw_master *vmaster);
 915bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
 916                                uint32_t pitch,
 917                                uint32_t height);
 918u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
 919int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe);
 920void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe);
 921int vmw_kms_present(struct vmw_private *dev_priv,
 922                    struct drm_file *file_priv,
 923                    struct vmw_framebuffer *vfb,
 924                    struct vmw_surface *surface,
 925                    uint32_t sid, int32_t destX, int32_t destY,
 926                    struct drm_vmw_rect *clips,
 927                    uint32_t num_clips);
 928int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 929                                struct drm_file *file_priv);
 930void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
 931
 932int vmw_dumb_create(struct drm_file *file_priv,
 933                    struct drm_device *dev,
 934                    struct drm_mode_create_dumb *args);
 935
 936int vmw_dumb_map_offset(struct drm_file *file_priv,
 937                        struct drm_device *dev, uint32_t handle,
 938                        uint64_t *offset);
 939int vmw_dumb_destroy(struct drm_file *file_priv,
 940                     struct drm_device *dev,
 941                     uint32_t handle);
 942extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible);
 943extern void vmw_resource_unpin(struct vmw_resource *res);
 944extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res);
 945
 946/**
 947 * Overlay control - vmwgfx_overlay.c
 948 */
 949
 950int vmw_overlay_init(struct vmw_private *dev_priv);
 951int vmw_overlay_close(struct vmw_private *dev_priv);
 952int vmw_overlay_ioctl(struct drm_device *dev, void *data,
 953                      struct drm_file *file_priv);
 954int vmw_overlay_stop_all(struct vmw_private *dev_priv);
 955int vmw_overlay_resume_all(struct vmw_private *dev_priv);
 956int vmw_overlay_pause_all(struct vmw_private *dev_priv);
 957int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
 958int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
 959int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
 960int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
 961
 962/**
 963 * GMR Id manager
 964 */
 965
 966extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func;
 967
 968/**
 969 * Prime - vmwgfx_prime.c
 970 */
 971
 972extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
 973extern int vmw_prime_fd_to_handle(struct drm_device *dev,
 974                                  struct drm_file *file_priv,
 975                                  int fd, u32 *handle);
 976extern int vmw_prime_handle_to_fd(struct drm_device *dev,
 977                                  struct drm_file *file_priv,
 978                                  uint32_t handle, uint32_t flags,
 979                                  int *prime_fd);
 980
 981/*
 982 * MemoryOBject management -  vmwgfx_mob.c
 983 */
 984struct vmw_mob;
 985extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob,
 986                        const struct vmw_sg_table *vsgt,
 987                        unsigned long num_data_pages, int32_t mob_id);
 988extern void vmw_mob_unbind(struct vmw_private *dev_priv,
 989                           struct vmw_mob *mob);
 990extern void vmw_mob_destroy(struct vmw_mob *mob);
 991extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
 992extern int vmw_otables_setup(struct vmw_private *dev_priv);
 993extern void vmw_otables_takedown(struct vmw_private *dev_priv);
 994
 995/*
 996 * Context management - vmwgfx_context.c
 997 */
 998
 999extern const struct vmw_user_resource_conv *user_context_converter;
1000

1001extern int vmw_context_check(struct vmw_private *dev_priv,
1002                             struct ttm_object_file *tfile,
1003                             int id,
1004                             struct vmw_resource **p_res);
1005extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
1006                                    struct drm_file *file_priv);
1007extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data,
1008                                             struct drm_file *file_priv);
1009extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
1010                                     struct drm_file *file_priv);
1011extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1012extern struct vmw_cmdbuf_res_manager *
1013vmw_context_res_man(struct vmw_resource *ctx);
1014extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx,
1015                                                SVGACOTableType cotable_type);
1016extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1017struct vmw_ctx_binding_state;
1018extern struct vmw_ctx_binding_state *
1019vmw_context_binding_state(struct vmw_resource *ctx);
1020extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx,
1021                                          bool readback);
1022extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res,
1023                                     struct vmw_dma_buffer *mob);
1024extern struct vmw_dma_buffer *
1025vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res);
1026
1027
1028/*
1029 * Surface management - vmwgfx_surface.c
1030 */
1031
1032extern const struct vmw_user_resource_conv *user_surface_converter;
1033
1034extern void vmw_surface_res_free(struct vmw_resource *res);
1035extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
1036                                     struct drm_file *file_priv);
1037extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
1038                                    struct drm_file *file_priv);
1039extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
1040                                       struct drm_file *file_priv);
1041extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1042                                       struct drm_file *file_priv);
1043extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1044                                          struct drm_file *file_priv);
1045extern int vmw_surface_check(struct vmw_private *dev_priv,
1046                             struct ttm_object_file *tfile,
1047                             uint32_t handle, int *id);
1048extern int vmw_surface_validate(struct vmw_private *dev_priv,
1049                                struct vmw_surface *srf);
1050int vmw_surface_gb_priv_define(struct drm_device *dev,
1051                               uint32_t user_accounting_size,
1052                               uint32_t svga3d_flags,
1053                               SVGA3dSurfaceFormat format,
1054                               bool for_scanout,
1055                               uint32_t num_mip_levels,
1056                               uint32_t multisample_count,
1057                               uint32_t array_size,
1058                               struct drm_vmw_size size,
1059                               struct vmw_surface **srf_out);
1060
1061/*
1062 * Shader management - vmwgfx_shader.c
1063 */
1064
1065extern const struct vmw_user_resource_conv *user_shader_converter;
1066
1067extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
1068                                   struct drm_file *file_priv);
1069extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
1070                                    struct drm_file *file_priv);
1071extern int vmw_compat_shader_add(struct vmw_private *dev_priv,
1072                                 struct vmw_cmdbuf_res_manager *man,
1073                                 u32 user_key, const void *bytecode,
1074                                 SVGA3dShaderType shader_type,
1075                                 size_t size,
1076                                 struct list_head *list);
1077extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man,
1078                             u32 user_key, SVGA3dShaderType shader_type,
1079                             struct list_head *list);
1080extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man,
1081                             struct vmw_resource *ctx,
1082                             u32 user_key,
1083                             SVGA3dShaderType shader_type,
1084                             struct list_head *list);
1085extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv,
1086                                             struct list_head *list,
1087                                             bool readback);
1088
1089extern struct vmw_resource *
1090vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man,
1091                  u32 user_key, SVGA3dShaderType shader_type);
1092
1093/*
1094 * Command buffer managed resources - vmwgfx_cmdbuf_res.c
1095 */
1096
1097extern struct vmw_cmdbuf_res_manager *
1098vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv);
1099extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man);
1100extern size_t vmw_cmdbuf_res_man_size(void);
1101extern struct vmw_resource *
1102vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man,
1103                      enum vmw_cmdbuf_res_type res_type,
1104                      u32 user_key);
1105extern void vmw_cmdbuf_res_revert(struct list_head *list);
1106extern void vmw_cmdbuf_res_commit(struct list_head *list);
1107extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
1108                              enum vmw_cmdbuf_res_type res_type,
1109                              u32 user_key,
1110                              struct vmw_resource *res,
1111                              struct list_head *list);
1112extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man,
1113                                 enum vmw_cmdbuf_res_type res_type,
1114                                 u32 user_key,
1115                                 struct list_head *list,
1116                                 struct vmw_resource **res);
1117
1118/*
1119 * COTable management - vmwgfx_cotable.c
1120 */
1121extern const SVGACOTableType vmw_cotable_scrub_order[];
1122extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv,
1123                                              struct vmw_resource *ctx,
1124                                              u32 type);
1125extern int vmw_cotable_notify(struct vmw_resource *res, int id);
1126extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback);
1127extern void vmw_cotable_add_resource(struct vmw_resource *ctx,
1128                                     struct list_head *head);
1129
1130/*
1131 * Command buffer managerment vmwgfx_cmdbuf.c
1132 */
1133struct vmw_cmdbuf_man;
1134struct vmw_cmdbuf_header;
1135
1136extern struct vmw_cmdbuf_man *
1137vmw_cmdbuf_man_create(struct vmw_private *dev_priv);
1138extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man,
1139                                    size_t size, size_t default_size);
1140extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man);
1141extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man);
1142extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible,
1143                           unsigned long timeout);
1144extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size,
1145                                int ctx_id, bool interruptible,
1146                                struct vmw_cmdbuf_header *header);
1147extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size,
1148                              struct vmw_cmdbuf_header *header,
1149                              bool flush);
1150extern void vmw_cmdbuf_tasklet_schedule(struct vmw_cmdbuf_man *man);
1151extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man,
1152                              size_t size, bool interruptible,
1153                              struct vmw_cmdbuf_header **p_header);
1154extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header);
1155extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man,
1156                                bool interruptible);
1157
1158
1159/**
1160 * Inline helper functions
1161 */
1162
1163static inline void vmw_surface_unreference(struct vmw_surface **srf)
1164{
1165        struct vmw_surface *tmp_srf = *srf;
1166        struct vmw_resource *res = &tmp_srf->res;
1167        *srf = NULL;
1168
1169        vmw_resource_unreference(&res);
1170}
1171
1172static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
1173{
1174        (void) vmw_resource_reference(&srf->res);
1175        return srf;
1176}
1177
1178static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf)
1179{
1180        struct vmw_dma_buffer *tmp_buf = *buf;
1181
1182        *buf = NULL;
1183        if (tmp_buf != NULL) {
1184                struct ttm_buffer_object *bo = &tmp_buf->base;
1185
1186                ttm_bo_unref(&bo);
1187        }
1188}
1189
1190static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf)
1191{
1192        if (ttm_bo_reference(&buf->base))
1193                return buf;
1194        return NULL;
1195}
1196
1197static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
1198{
1199        return (struct ttm_mem_global *) dev_priv->mem_global_ref.object;
1200}
1201
1202static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv)
1203{
1204        atomic_inc(&dev_priv->num_fifo_resources);
1205}
1206
1207static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv)
1208{
1209        atomic_dec(&dev_priv->num_fifo_resources);
1210}
1211
1212/**
1213 * vmw_mmio_read - Perform a MMIO read from volatile memory
1214 *
1215 * @addr: The address to read from
1216 *
1217 * This function is intended to be equivalent to ioread32() on
1218 * memremap'd memory, but without byteswapping.
1219 */
1220static inline u32 vmw_mmio_read(u32 *addr)
1221{
1222        return READ_ONCE(*addr);
1223}
1224
1225/**
1226 * vmw_mmio_write - Perform a MMIO write to volatile memory
1227 *
1228 * @addr: The address to write to
1229 *
1230 * This function is intended to be equivalent to iowrite32 on
1231 * memremap'd memory, but without byteswapping.
1232 */
1233static inline void vmw_mmio_write(u32 value, u32 *addr)
1234{
1235        WRITE_ONCE(*addr, value);
1236}
1237#endif
1238
Hosted by Missing Link Electronics. The original LXR software by the LXR community, this experimental version by lxr@linux.no.