LXR linux/drivers/gpu/drm/vmwgfx/vmwgfx

   1/**************************************************************************
   2 *
   3 * Copyright © 2009 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 "20120209"
  44#define VMWGFX_DRIVER_MAJOR 2
  45#define VMWGFX_DRIVER_MINOR 4
  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
  54#define VMW_PL_GMR TTM_PL_PRIV0
  55#define VMW_PL_FLAG_GMR TTM_PL_FLAG_PRIV0
  56
  57#define VMW_RES_CONTEXT ttm_driver_type0
  58#define VMW_RES_SURFACE ttm_driver_type1
  59#define VMW_RES_STREAM ttm_driver_type2
  60#define VMW_RES_FENCE ttm_driver_type3
  61
  62struct vmw_fpriv {
  63        struct drm_master *locked_master;
  64        struct ttm_object_file *tfile;
  65        struct list_head fence_events;
  66};
  67
  68struct vmw_dma_buffer {
  69        struct ttm_buffer_object base;
  70        struct list_head res_list;
  71};
  72
  73/**
  74 * struct vmw_validate_buffer - Carries validation info about buffers.
  75 *
  76 * @base: Validation info for TTM.
  77 * @hash: Hash entry for quick lookup of the TTM buffer object.
  78 *
  79 * This structure contains also driver private validation info
  80 * on top of the info needed by TTM.
  81 */
  82struct vmw_validate_buffer {
  83        struct ttm_validate_buffer base;
  84        struct drm_hash_item hash;
  85};
  86
  87struct vmw_res_func;
  88struct vmw_resource {
  89        struct kref kref;
  90        struct vmw_private *dev_priv;
  91        int id;
  92        bool avail;
  93        unsigned long backup_size;
  94        bool res_dirty; /* Protected by backup buffer reserved */
  95        bool backup_dirty; /* Protected by backup buffer reserved */
  96        struct vmw_dma_buffer *backup;
  97        unsigned long backup_offset;
  98        const struct vmw_res_func *func;
  99        struct list_head lru_head; /* Protected by the resource lock */
 100        struct list_head mob_head; /* Protected by @backup reserved */
 101        void (*res_free) (struct vmw_resource *res);
 102        void (*hw_destroy) (struct vmw_resource *res);
 103};
 104
 105enum vmw_res_type {
 106        vmw_res_context,
 107        vmw_res_surface,
 108        vmw_res_stream,
 109        vmw_res_max
 110};
 111
 112struct vmw_cursor_snooper {
 113        struct drm_crtc *crtc;
 114        size_t age;
 115        uint32_t *image;
 116};
 117
 118struct vmw_framebuffer;
 119struct vmw_surface_offset;
 120
 121struct vmw_surface {
 122        struct vmw_resource res;
 123        uint32_t flags;
 124        uint32_t format;
 125        uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 126        struct drm_vmw_size base_size;
 127        struct drm_vmw_size *sizes;
 128        uint32_t num_sizes;
 129        bool scanout;
 130        /* TODO so far just a extra pointer */
 131        struct vmw_cursor_snooper snooper;
 132        struct vmw_surface_offset *offsets;
 133        SVGA3dTextureFilter autogen_filter;
 134        uint32_t multisample_count;
 135};
 136
 137struct vmw_marker_queue {
 138        struct list_head head;
 139        struct timespec lag;
 140        struct timespec lag_time;
 141        spinlock_t lock;
 142};
 143
 144struct vmw_fifo_state {
 145        unsigned long reserved_size;
 146        __le32 *dynamic_buffer;
 147        __le32 *static_buffer;
 148        unsigned long static_buffer_size;
 149        bool using_bounce_buffer;
 150        uint32_t capabilities;
 151        struct mutex fifo_mutex;
 152        struct rw_semaphore rwsem;
 153        struct vmw_marker_queue marker_queue;
 154};
 155
 156struct vmw_relocation {
 157        SVGAGuestPtr *location;
 158        uint32_t index;
 159};
 160
 161/**
 162 * struct vmw_res_cache_entry - resource information cache entry
 163 *
 164 * @valid: Whether the entry is valid, which also implies that the execbuf
 165 * code holds a reference to the resource, and it's placed on the
 166 * validation list.
 167 * @handle: User-space handle of a resource.
 168 * @res: Non-ref-counted pointer to the resource.
 169 *
 170 * Used to avoid frequent repeated user-space handle lookups of the
 171 * same resource.
 172 */
 173struct vmw_res_cache_entry {
 174        bool valid;
 175        uint32_t handle;
 176        struct vmw_resource *res;
 177        struct vmw_resource_val_node *node;
 178};
 179
 180struct vmw_sw_context{
 181        struct drm_open_hash res_ht;
 182        bool res_ht_initialized;
 183        bool kernel; /**< is the called made from the kernel */
 184        struct ttm_object_file *tfile;
 185        struct list_head validate_nodes;
 186        struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
 187        uint32_t cur_reloc;
 188        struct vmw_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS];
 189        uint32_t cur_val_buf;
 190        uint32_t *cmd_bounce;
 191        uint32_t cmd_bounce_size;
 192        struct list_head resource_list;
 193        uint32_t fence_flags;
 194        struct ttm_buffer_object *cur_query_bo;
 195        struct list_head res_relocations;
 196        uint32_t *buf_start;
 197        struct vmw_res_cache_entry res_cache[vmw_res_max];
 198        struct vmw_resource *last_query_ctx;
 199        bool needs_post_query_barrier;
 200        struct vmw_resource *error_resource;
 201};
 202
 203struct vmw_legacy_display;
 204struct vmw_overlay;
 205
 206struct vmw_master {
 207        struct ttm_lock lock;
 208        struct mutex fb_surf_mutex;
 209        struct list_head fb_surf;
 210};
 211
 212struct vmw_vga_topology_state {
 213        uint32_t width;
 214        uint32_t height;
 215        uint32_t primary;
 216        uint32_t pos_x;
 217        uint32_t pos_y;
 218};
 219
 220struct vmw_private {
 221        struct ttm_bo_device bdev;
 222        struct ttm_bo_global_ref bo_global_ref;
 223        struct drm_global_reference mem_global_ref;
 224
 225        struct vmw_fifo_state fifo;
 226
 227        struct drm_device *dev;
 228        unsigned long vmw_chipset;
 229        unsigned int io_start;
 230        uint32_t vram_start;
 231        uint32_t vram_size;
 232        uint32_t mmio_start;
 233        uint32_t mmio_size;
 234        uint32_t fb_max_width;
 235        uint32_t fb_max_height;
 236        uint32_t initial_width;
 237        uint32_t initial_height;
 238        __le32 __iomem *mmio_virt;
 239        int mmio_mtrr;
 240        uint32_t capabilities;
 241        uint32_t max_gmr_descriptors;
 242        uint32_t max_gmr_ids;
 243        uint32_t max_gmr_pages;
 244        uint32_t memory_size;
 245        bool has_gmr;
 246        struct mutex hw_mutex;
 247
 248        /*
 249         * VGA registers.
 250         */
 251
 252        struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS];
 253        uint32_t vga_width;
 254        uint32_t vga_height;
 255        uint32_t vga_bpp;
 256        uint32_t vga_bpl;
 257        uint32_t vga_pitchlock;
 258
 259        uint32_t num_displays;
 260
 261        /*
 262         * Framebuffer info.
 263         */
 264
 265        void *fb_info;
 266        struct vmw_legacy_display *ldu_priv;
 267        struct vmw_screen_object_display *sou_priv;
 268        struct vmw_overlay *overlay_priv;
 269
 270        /*
 271         * Context and surface management.
 272         */
 273
 274        rwlock_t resource_lock;
 275        struct idr res_idr[vmw_res_max];
 276        /*
 277         * Block lastclose from racing with firstopen.
 278         */
 279
 280        struct mutex init_mutex;
 281
 282        /*
 283         * A resource manager for kernel-only surfaces and
 284         * contexts.
 285         */
 286
 287        struct ttm_object_device *tdev;
 288
 289        /*
 290         * Fencing and IRQs.
 291         */
 292
 293        atomic_t marker_seq;
 294        wait_queue_head_t fence_queue;
 295        wait_queue_head_t fifo_queue;
 296        int fence_queue_waiters; /* Protected by hw_mutex */
 297        int goal_queue_waiters; /* Protected by hw_mutex */
 298        atomic_t fifo_queue_waiters;
 299        uint32_t last_read_seqno;
 300        spinlock_t irq_lock;
 301        struct vmw_fence_manager *fman;
 302        uint32_t irq_mask;
 303
 304        /*
 305         * Device state
 306         */
 307
 308        uint32_t traces_state;
 309        uint32_t enable_state;
 310        uint32_t config_done_state;
 311
 312        /**
 313         * Execbuf
 314         */
 315        /**
 316         * Protected by the cmdbuf mutex.
 317         */
 318
 319        struct vmw_sw_context ctx;
 320        struct mutex cmdbuf_mutex;
 321
 322        /**
 323         * Operating mode.
 324         */
 325
 326        bool stealth;
 327        bool is_opened;
 328        bool enable_fb;
 329
 330        /**
 331         * Master management.
 332         */
 333
 334        struct vmw_master *active_master;
 335        struct vmw_master fbdev_master;
 336        struct notifier_block pm_nb;
 337        bool suspended;
 338
 339        struct mutex release_mutex;
 340        uint32_t num_3d_resources;
 341
 342        /*
 343         * Query processing. These members
 344         * are protected by the cmdbuf mutex.
 345         */
 346
 347        struct ttm_buffer_object *dummy_query_bo;
 348        struct ttm_buffer_object *pinned_bo;
 349        uint32_t query_cid;
 350        uint32_t query_cid_valid;
 351        bool dummy_query_bo_pinned;
 352
 353        /*
 354         * Surface swapping. The "surface_lru" list is protected by the
 355         * resource lock in order to be able to destroy a surface and take
 356         * it off the lru atomically. "used_memory_size" is currently
 357         * protected by the cmdbuf mutex for simplicity.
 358         */
 359
 360        struct list_head res_lru[vmw_res_max];
 361        uint32_t used_memory_size;
 362};
 363
 364static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
 365{
 366        return container_of(res, struct vmw_surface, res);
 367}
 368
 369static inline struct vmw_private *vmw_priv(struct drm_device *dev)
 370{
 371        return (struct vmw_private *)dev->dev_private;
 372}
 373
 374static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
 375{
 376        return (struct vmw_fpriv *)file_priv->driver_priv;
 377}
 378
 379static inline struct vmw_master *vmw_master(struct drm_master *master)
 380{
 381        return (struct vmw_master *) master->driver_priv;
 382}
 383
 384static inline void vmw_write(struct vmw_private *dev_priv,
 385                             unsigned int offset, uint32_t value)
 386{
 387        outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 388        outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
 389}
 390
 391static inline uint32_t vmw_read(struct vmw_private *dev_priv,
 392                                unsigned int offset)
 393{
 394        uint32_t val;
 395
 396        outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 397        val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
 398        return val;
 399}
 400
 401int vmw_3d_resource_inc(struct vmw_private *dev_priv, bool unhide_svga);
 402void vmw_3d_resource_dec(struct vmw_private *dev_priv, bool hide_svga);
 403
 404/**
 405 * GMR utilities - vmwgfx_gmr.c
 406 */
 407
 408extern int vmw_gmr_bind(struct vmw_private *dev_priv,
 409                        struct page *pages[],
 410                        unsigned long num_pages,
 411                        int gmr_id);
 412extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
 413
 414/**
 415 * Resource utilities - vmwgfx_resource.c
 416 */
 417struct vmw_user_resource_conv;
 418extern const struct vmw_user_resource_conv *user_surface_converter;
 419extern const struct vmw_user_resource_conv *user_context_converter;
 420
 421extern struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv);
 422extern void vmw_resource_unreference(struct vmw_resource **p_res);
 423extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
 424extern int vmw_resource_validate(struct vmw_resource *res);
 425extern int vmw_resource_reserve(struct vmw_resource *res, bool no_backup);
 426extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
 427extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
 428                                     struct drm_file *file_priv);
 429extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
 430                                    struct drm_file *file_priv);
 431extern int vmw_context_check(struct vmw_private *dev_priv,
 432                             struct ttm_object_file *tfile,
 433                             int id,
 434                             struct vmw_resource **p_res);
 435extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
 436                                  struct ttm_object_file *tfile,
 437                                  uint32_t handle,
 438                                  struct vmw_surface **out_surf,
 439                                  struct vmw_dma_buffer **out_buf);
 440extern int vmw_user_resource_lookup_handle(
 441        struct vmw_private *dev_priv,
 442        struct ttm_object_file *tfile,
 443        uint32_t handle,
 444        const struct vmw_user_resource_conv *converter,
 445        struct vmw_resource **p_res);
 446extern void vmw_surface_res_free(struct vmw_resource *res);
 447extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
 448                                     struct drm_file *file_priv);
 449extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
 450                                    struct drm_file *file_priv);
 451extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
 452                                       struct drm_file *file_priv);
 453extern int vmw_surface_check(struct vmw_private *dev_priv,
 454                             struct ttm_object_file *tfile,
 455                             uint32_t handle, int *id);
 456extern int vmw_surface_validate(struct vmw_private *dev_priv,
 457                                struct vmw_surface *srf);
 458extern void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo);
 459extern int vmw_dmabuf_init(struct vmw_private *dev_priv,
 460                           struct vmw_dma_buffer *vmw_bo,
 461                           size_t size, struct ttm_placement *placement,
 462                           bool interuptable,
 463                           void (*bo_free) (struct ttm_buffer_object *bo));
 464extern int vmw_user_dmabuf_verify_access(struct ttm_buffer_object *bo,
 465                                  struct ttm_object_file *tfile);
 466extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data,
 467                                  struct drm_file *file_priv);
 468extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data,
 469                                  struct drm_file *file_priv);
 470extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo,
 471                                         uint32_t cur_validate_node);
 472extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo);
 473extern int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile,
 474                                  uint32_t id, struct vmw_dma_buffer **out);
 475extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
 476                                  struct drm_file *file_priv);
 477extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
 478                                  struct drm_file *file_priv);
 479extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
 480                                  struct ttm_object_file *tfile,
 481                                  uint32_t *inout_id,
 482                                  struct vmw_resource **out);
 483extern void vmw_resource_unreserve(struct vmw_resource *res,
 484                                   struct vmw_dma_buffer *new_backup,
 485                                   unsigned long new_backup_offset);
 486extern void vmw_resource_move_notify(struct ttm_buffer_object *bo,
 487                                     struct ttm_mem_reg *mem);
 488extern void vmw_fence_single_bo(struct ttm_buffer_object *bo,
 489                                struct vmw_fence_obj *fence);
 490extern void vmw_resource_evict_all(struct vmw_private *dev_priv);
 491
 492/**
 493 * DMA buffer helper routines - vmwgfx_dmabuf.c
 494 */
 495extern int vmw_dmabuf_to_placement(struct vmw_private *vmw_priv,
 496                                   struct vmw_dma_buffer *bo,
 497                                   struct ttm_placement *placement,
 498                                   bool interruptible);
 499extern int vmw_dmabuf_to_vram(struct vmw_private *dev_priv,
 500                              struct vmw_dma_buffer *buf,
 501                              bool pin, bool interruptible);
 502extern int vmw_dmabuf_to_vram_or_gmr(struct vmw_private *dev_priv,
 503                                     struct vmw_dma_buffer *buf,
 504                                     bool pin, bool interruptible);
 505extern int vmw_dmabuf_to_start_of_vram(struct vmw_private *vmw_priv,
 506                                       struct vmw_dma_buffer *bo,
 507                                       bool pin, bool interruptible);
 508extern int vmw_dmabuf_unpin(struct vmw_private *vmw_priv,
 509                            struct vmw_dma_buffer *bo,
 510                            bool interruptible);
 511extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
 512                                 SVGAGuestPtr *ptr);
 513extern void vmw_bo_pin(struct ttm_buffer_object *bo, bool pin);
 514
 515/**
 516 * Misc Ioctl functionality - vmwgfx_ioctl.c
 517 */
 518
 519extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 520                              struct drm_file *file_priv);
 521extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
 522                                struct drm_file *file_priv);
 523extern int vmw_present_ioctl(struct drm_device *dev, void *data,
 524                             struct drm_file *file_priv);
 525extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
 526                                      struct drm_file *file_priv);
 527extern unsigned int vmw_fops_poll(struct file *filp,
 528                                  struct poll_table_struct *wait);
 529extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
 530                             size_t count, loff_t *offset);
 531
 532/**
 533 * Fifo utilities - vmwgfx_fifo.c
 534 */
 535
 536extern int vmw_fifo_init(struct vmw_private *dev_priv,
 537                         struct vmw_fifo_state *fifo);
 538extern void vmw_fifo_release(struct vmw_private *dev_priv,
 539                             struct vmw_fifo_state *fifo);
 540extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes);
 541extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
 542extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
 543                               uint32_t *seqno);
 544extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 545extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
 546extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
 547extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv,
 548                                     uint32_t cid);
 549
 550/**
 551 * TTM glue - vmwgfx_ttm_glue.c
 552 */
 553
 554extern int vmw_ttm_global_init(struct vmw_private *dev_priv);
 555extern void vmw_ttm_global_release(struct vmw_private *dev_priv);
 556extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 557
 558/**
 559 * TTM buffer object driver - vmwgfx_buffer.c
 560 */
 561
 562extern struct ttm_placement vmw_vram_placement;
 563extern struct ttm_placement vmw_vram_ne_placement;
 564extern struct ttm_placement vmw_vram_sys_placement;
 565extern struct ttm_placement vmw_vram_gmr_placement;
 566extern struct ttm_placement vmw_vram_gmr_ne_placement;
 567extern struct ttm_placement vmw_sys_placement;
 568extern struct ttm_placement vmw_evictable_placement;
 569extern struct ttm_placement vmw_srf_placement;
 570extern struct ttm_bo_driver vmw_bo_driver;
 571extern int vmw_dma_quiescent(struct drm_device *dev);
 572
 573/**
 574 * Command submission - vmwgfx_execbuf.c
 575 */
 576
 577extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 578                             struct drm_file *file_priv);
 579extern int vmw_execbuf_process(struct drm_file *file_priv,
 580                               struct vmw_private *dev_priv,
 581                               void __user *user_commands,
 582                               void *kernel_commands,
 583                               uint32_t command_size,
 584                               uint64_t throttle_us,
 585                               struct drm_vmw_fence_rep __user
 586                               *user_fence_rep,
 587                               struct vmw_fence_obj **out_fence);
 588extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
 589                                            struct vmw_fence_obj *fence);
 590extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);
 591
 592extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
 593                                      struct vmw_private *dev_priv,
 594                                      struct vmw_fence_obj **p_fence,
 595                                      uint32_t *p_handle);
 596extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
 597                                        struct vmw_fpriv *vmw_fp,
 598                                        int ret,
 599                                        struct drm_vmw_fence_rep __user
 600                                        *user_fence_rep,
 601                                        struct vmw_fence_obj *fence,
 602                                        uint32_t fence_handle);
 603
 604/**
 605 * IRQs and wating - vmwgfx_irq.c
 606 */
 607
 608extern irqreturn_t vmw_irq_handler(DRM_IRQ_ARGS);
 609extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
 610                             uint32_t seqno, bool interruptible,
 611                             unsigned long timeout);
 612extern void vmw_irq_preinstall(struct drm_device *dev);
 613extern int vmw_irq_postinstall(struct drm_device *dev);
 614extern void vmw_irq_uninstall(struct drm_device *dev);
 615extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
 616                                uint32_t seqno);
 617extern int vmw_fallback_wait(struct vmw_private *dev_priv,
 618                             bool lazy,
 619                             bool fifo_idle,
 620                             uint32_t seqno,
 621                             bool interruptible,
 622                             unsigned long timeout);
 623extern void vmw_update_seqno(struct vmw_private *dev_priv,
 624                                struct vmw_fifo_state *fifo_state);
 625extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
 626extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
 627extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
 628extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
 629
 630/**
 631 * Rudimentary fence-like objects currently used only for throttling -
 632 * vmwgfx_marker.c
 633 */
 634
 635extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
 636extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
 637extern int vmw_marker_push(struct vmw_marker_queue *queue,
 638                          uint32_t seqno);
 639extern int vmw_marker_pull(struct vmw_marker_queue *queue,
 640                          uint32_t signaled_seqno);
 641extern int vmw_wait_lag(struct vmw_private *dev_priv,
 642                        struct vmw_marker_queue *queue, uint32_t us);
 643
 644/**
 645 * Kernel framebuffer - vmwgfx_fb.c
 646 */
 647
 648int vmw_fb_init(struct vmw_private *vmw_priv);
 649int vmw_fb_close(struct vmw_private *dev_priv);
 650int vmw_fb_off(struct vmw_private *vmw_priv);
 651int vmw_fb_on(struct vmw_private *vmw_priv);
 652
 653/**
 654 * Kernel modesetting - vmwgfx_kms.c
 655 */
 656
 657int vmw_kms_init(struct vmw_private *dev_priv);
 658int vmw_kms_close(struct vmw_private *dev_priv);
 659int vmw_kms_save_vga(struct vmw_private *vmw_priv);
 660int vmw_kms_restore_vga(struct vmw_private *vmw_priv);
 661int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
 662                                struct drm_file *file_priv);
 663void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
 664void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 665                          struct ttm_object_file *tfile,
 666                          struct ttm_buffer_object *bo,
 667                          SVGA3dCmdHeader *header);
 668int vmw_kms_write_svga(struct vmw_private *vmw_priv,
 669                       unsigned width, unsigned height, unsigned pitch,
 670                       unsigned bpp, unsigned depth);
 671void vmw_kms_idle_workqueues(struct vmw_master *vmaster);
 672bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
 673                                uint32_t pitch,
 674                                uint32_t height);
 675u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc);
 676int vmw_enable_vblank(struct drm_device *dev, int crtc);
 677void vmw_disable_vblank(struct drm_device *dev, int crtc);
 678int vmw_kms_present(struct vmw_private *dev_priv,
 679                    struct drm_file *file_priv,
 680                    struct vmw_framebuffer *vfb,
 681                    struct vmw_surface *surface,
 682                    uint32_t sid, int32_t destX, int32_t destY,
 683                    struct drm_vmw_rect *clips,
 684                    uint32_t num_clips);
 685int vmw_kms_readback(struct vmw_private *dev_priv,
 686                     struct drm_file *file_priv,
 687                     struct vmw_framebuffer *vfb,
 688                     struct drm_vmw_fence_rep __user *user_fence_rep,
 689                     struct drm_vmw_rect *clips,
 690                     uint32_t num_clips);
 691int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 692                                struct drm_file *file_priv);
 693
 694int vmw_dumb_create(struct drm_file *file_priv,
 695                    struct drm_device *dev,
 696                    struct drm_mode_create_dumb *args);
 697
 698int vmw_dumb_map_offset(struct drm_file *file_priv,
 699                        struct drm_device *dev, uint32_t handle,
 700                        uint64_t *offset);
 701int vmw_dumb_destroy(struct drm_file *file_priv,
 702                     struct drm_device *dev,
 703                     uint32_t handle);
 704/**
 705 * Overlay control - vmwgfx_overlay.c
 706 */
 707
 708int vmw_overlay_init(struct vmw_private *dev_priv);
 709int vmw_overlay_close(struct vmw_private *dev_priv);
 710int vmw_overlay_ioctl(struct drm_device *dev, void *data,
 711                      struct drm_file *file_priv);
 712int vmw_overlay_stop_all(struct vmw_private *dev_priv);
 713int vmw_overlay_resume_all(struct vmw_private *dev_priv);
 714int vmw_overlay_pause_all(struct vmw_private *dev_priv);
 715int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
 716int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
 717int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
 718int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
 719
 720/**
 721 * GMR Id manager
 722 */
 723
 724extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func;
 725
 726/**
 727 * Inline helper functions
 728 */
 729
 730static inline void vmw_surface_unreference(struct vmw_surface **srf)
 731{
 732        struct vmw_surface *tmp_srf = *srf;
 733        struct vmw_resource *res = &tmp_srf->res;
 734        *srf = NULL;
 735
 736        vmw_resource_unreference(&res);
 737}
 738
 739static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
 740{
 741        (void) vmw_resource_reference(&srf->res);
 742        return srf;
 743}
 744
 745static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf)
 746{
 747        struct vmw_dma_buffer *tmp_buf = *buf;
 748
 749        *buf = NULL;
 750        if (tmp_buf != NULL) {
 751                struct ttm_buffer_object *bo = &tmp_buf->base;
 752
 753                ttm_bo_unref(&bo);
 754        }
 755}
 756
 757static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf)
 758{
 759        if (ttm_bo_reference(&buf->base))
 760                return buf;
 761        return NULL;
 762}
 763
 764static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
 765{
 766        return (struct ttm_mem_global *) dev_priv->mem_global_ref.object;
 767}
 768#endif
 769