drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

   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 "drmP.h"
  33 #include "vmwgfx_drm.h"
  34 #include "drm_hashtab.h"
  35 #include "linux/suspend.h"
  36 #include "ttm/ttm_bo_driver.h"
  37 #include "ttm/ttm_object.h"
  38 #include "ttm/ttm_lock.h"
  39 #include "ttm/ttm_execbuf_util.h"
  40 #include "ttm/ttm_module.h"
  41 #include "vmwgfx_fence.h"
  42
  43 #define VMWGFX_DRIVER_DATE "20110901"
  44 #define VMWGFX_DRIVER_MAJOR 2
  45 #define VMWGFX_DRIVER_MINOR 0
  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
  62 struct vmw_fpriv {
  63         struct drm_master *locked_master;
  64         struct ttm_object_file *tfile;
  65 };
  66
  67 struct vmw_dma_buffer {
  68         struct ttm_buffer_object base;
  69         struct list_head validate_list;
  70         bool gmr_bound;
  71         uint32_t cur_validate_node;
  72         bool on_validate_list;
  73 };
  74
  75 struct vmw_resource {
  76         struct kref kref;
  77         struct vmw_private *dev_priv;
  78         struct idr *idr;
  79         int id;
  80         enum ttm_object_type res_type;
  81         bool avail;
  82         void (*hw_destroy) (struct vmw_resource *res);
  83         void (*res_free) (struct vmw_resource *res);
  84         bool on_validate_list;
  85         /* TODO is a generic snooper needed? */
  86 #if 0
  87         void (*snoop)(struct vmw_resource *res,
  88                       struct ttm_object_file *tfile,
  89                       SVGA3dCmdHeader *header);
  90         void *snoop_priv;
  91 #endif
  92 };
  93
  94 struct vmw_cursor_snooper {
  95         struct drm_crtc *crtc;
  96         size_t age;
  97         uint32_t *image;
  98 };
  99
 100 struct vmw_framebuffer;
 101
 102 struct vmw_surface {
 103         struct vmw_resource res;
 104         uint32_t flags;
 105         uint32_t format;
 106         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 107         struct drm_vmw_size *sizes;
 108         uint32_t num_sizes;
 109
 110         bool scanout;
 111
 112         /* TODO so far just a extra pointer */
 113         struct vmw_cursor_snooper snooper;
 114 };
 115
 116 struct vmw_marker_queue {
 117         struct list_head head;
 118         struct timespec lag;
 119         struct timespec lag_time;
 120         spinlock_t lock;
 121 };
 122
 123 struct vmw_fifo_state {
 124         unsigned long reserved_size;
 125         __le32 *dynamic_buffer;
 126         __le32 *static_buffer;
 127         unsigned long static_buffer_size;
 128         bool using_bounce_buffer;
 129         uint32_t capabilities;
 130         struct mutex fifo_mutex;
 131         struct rw_semaphore rwsem;
 132         struct vmw_marker_queue marker_queue;
 133 };
 134
 135 struct vmw_relocation {
 136         SVGAGuestPtr *location;
 137         uint32_t index;
 138 };
 139
 140 struct vmw_sw_context{
 141         struct ida bo_list;
 142         uint32_t last_cid;
 143         bool cid_valid;
 144         bool kernel; /**< is the called made from the kernel */
 145         uint32_t last_sid;
 146         uint32_t sid_translation;
 147         bool sid_valid;
 148         struct ttm_object_file *tfile;
 149         struct list_head validate_nodes;
 150         struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
 151         uint32_t cur_reloc;
 152         struct ttm_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS];
 153         uint32_t cur_val_buf;
 154         uint32_t *cmd_bounce;
 155         uint32_t cmd_bounce_size;
 156         struct vmw_resource *resources[VMWGFX_MAX_VALIDATIONS];
 157         uint32_t num_ref_resources;
 158 };
 159
 160 struct vmw_legacy_display;
 161 struct vmw_overlay;
 162
 163 struct vmw_master {
 164         struct ttm_lock lock;
 165         struct mutex fb_surf_mutex;
 166         struct list_head fb_surf;
 167 };
 168
 169 struct vmw_vga_topology_state {
 170         uint32_t width;
 171         uint32_t height;
 172         uint32_t primary;
 173         uint32_t pos_x;
 174         uint32_t pos_y;
 175 };
 176
 177 struct vmw_private {
 178         struct ttm_bo_device bdev;
 179         struct ttm_bo_global_ref bo_global_ref;
 180         struct drm_global_reference mem_global_ref;
 181
 182         struct vmw_fifo_state fifo;
 183
 184         struct drm_device *dev;
 185         unsigned long vmw_chipset;
 186         unsigned int io_start;
 187         uint32_t vram_start;
 188         uint32_t vram_size;
 189         uint32_t mmio_start;
 190         uint32_t mmio_size;
 191         uint32_t fb_max_width;
 192         uint32_t fb_max_height;
 193         __le32 __iomem *mmio_virt;
 194         int mmio_mtrr;
 195         uint32_t capabilities;
 196         uint32_t max_gmr_descriptors;
 197         uint32_t max_gmr_ids;
 198         uint32_t max_gmr_pages;
 199         uint32_t memory_size;
 200         bool has_gmr;
 201         struct mutex hw_mutex;
 202
 203         /*
 204          * VGA registers.
 205          */
 206
 207         struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS];
 208         uint32_t vga_width;
 209         uint32_t vga_height;
 210         uint32_t vga_bpp;
 211         uint32_t vga_bpl;
 212         uint32_t vga_pitchlock;
 213
 214         uint32_t num_displays;
 215
 216         /*
 217          * Framebuffer info.
 218          */
 219
 220         void *fb_info;
 221         struct vmw_legacy_display *ldu_priv;
 222         struct vmw_screen_object_display *sou_priv;
 223         struct vmw_overlay *overlay_priv;
 224
 225         /*
 226          * Context and surface management.
 227          */
 228
 229         rwlock_t resource_lock;
 230         struct idr context_idr;
 231         struct idr surface_idr;
 232         struct idr stream_idr;
 233
 234         /*
 235          * Block lastclose from racing with firstopen.
 236          */
 237
 238         struct mutex init_mutex;
 239
 240         /*
 241          * A resource manager for kernel-only surfaces and
 242          * contexts.
 243          */
 244
 245         struct ttm_object_device *tdev;
 246
 247         /*
 248          * Fencing and IRQs.
 249          */
 250
 251         atomic_t marker_seq;
 252         wait_queue_head_t fence_queue;
 253         wait_queue_head_t fifo_queue;
 254         int fence_queue_waiters; /* Protected by hw_mutex */
 255         atomic_t fifo_queue_waiters;
 256         uint32_t last_read_seqno;
 257         spinlock_t irq_lock;
 258         struct vmw_fence_manager *fman;
 259
 260         /*
 261          * Device state
 262          */
 263
 264         uint32_t traces_state;
 265         uint32_t enable_state;
 266         uint32_t config_done_state;
 267
 268         /**
 269          * Execbuf
 270          */
 271         /**
 272          * Protected by the cmdbuf mutex.
 273          */
 274
 275         struct vmw_sw_context ctx;
 276         struct mutex cmdbuf_mutex;
 277
 278         /**
 279          * Operating mode.
 280          */
 281
 282         bool stealth;
 283         bool is_opened;
 284         bool enable_fb;
 285
 286         /**
 287          * Master management.
 288          */
 289
 290         struct vmw_master *active_master;
 291         struct vmw_master fbdev_master;
 292         struct notifier_block pm_nb;
 293         bool suspended;
 294
 295         struct mutex release_mutex;
 296         uint32_t num_3d_resources;
 297 };
 298
 299 static inline struct vmw_private *vmw_priv(struct drm_device *dev)
 300 {
 301         return (struct vmw_private *)dev->dev_private;
 302 }
 303
 304 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
 305 {
 306         return (struct vmw_fpriv *)file_priv->driver_priv;
 307 }
 308
 309 static inline struct vmw_master *vmw_master(struct drm_master *master)
 310 {
 311         return (struct vmw_master *) master->driver_priv;
 312 }
 313
 314 static inline void vmw_write(struct vmw_private *dev_priv,
 315                              unsigned int offset, uint32_t value)
 316 {
 317         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 318         outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
 319 }
 320
 321 static inline uint32_t vmw_read(struct vmw_private *dev_priv,
 322                                 unsigned int offset)
 323 {
 324         uint32_t val;
 325
 326         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 327         val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
 328         return val;
 329 }
 330
 331 int vmw_3d_resource_inc(struct vmw_private *dev_priv, bool unhide_svga);
 332 void vmw_3d_resource_dec(struct vmw_private *dev_priv, bool hide_svga);
 333
 334 /**
 335  * GMR utilities - vmwgfx_gmr.c
 336  */
 337
 338 extern int vmw_gmr_bind(struct vmw_private *dev_priv,
 339                         struct page *pages[],
 340                         unsigned long num_pages,
 341                         int gmr_id);
 342 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
 343
 344 /**
 345  * Resource utilities - vmwgfx_resource.c
 346  */
 347
 348 extern struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv);
 349 extern void vmw_resource_unreference(struct vmw_resource **p_res);
 350 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
 351 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
 352                                      struct drm_file *file_priv);
 353 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
 354                                     struct drm_file *file_priv);
 355 extern int vmw_context_check(struct vmw_private *dev_priv,
 356                              struct ttm_object_file *tfile,
 357                              int id,
 358                              struct vmw_resource **p_res);
 359 extern void vmw_surface_res_free(struct vmw_resource *res);
 360 extern int vmw_surface_init(struct vmw_private *dev_priv,
 361                             struct vmw_surface *srf,
 362                             void (*res_free) (struct vmw_resource *res));
 363 extern int vmw_user_surface_lookup_handle(struct vmw_private *dev_priv,
 364                                           struct ttm_object_file *tfile,
 365                                           uint32_t handle,
 366                                           struct vmw_surface **out);
 367 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
 368                                      struct drm_file *file_priv);
 369 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
 370                                     struct drm_file *file_priv);
 371 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
 372                                        struct drm_file *file_priv);
 373 extern int vmw_surface_check(struct vmw_private *dev_priv,
 374                              struct ttm_object_file *tfile,
 375                              uint32_t handle, int *id);
 376 extern void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo);
 377 extern int vmw_dmabuf_init(struct vmw_private *dev_priv,
 378                            struct vmw_dma_buffer *vmw_bo,
 379                            size_t size, struct ttm_placement *placement,
 380                            bool interuptable,
 381                            void (*bo_free) (struct ttm_buffer_object *bo));
 382 extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data,
 383                                   struct drm_file *file_priv);
 384 extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data,
 385                                   struct drm_file *file_priv);
 386 extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo,
 387                                          uint32_t cur_validate_node);
 388 extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo);
 389 extern int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile,
 390                                   uint32_t id, struct vmw_dma_buffer **out);
 391 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
 392                                   struct drm_file *file_priv);
 393 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
 394                                   struct drm_file *file_priv);
 395 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
 396                                   struct ttm_object_file *tfile,
 397                                   uint32_t *inout_id,
 398                                   struct vmw_resource **out);
 399
 400 /**
 401  * DMA buffer helper routines - vmwgfx_dmabuf.c
 402  */
 403 extern int vmw_dmabuf_to_placement(struct vmw_private *vmw_priv,
 404                                    struct vmw_dma_buffer *bo,
 405                                    struct ttm_placement *placement,
 406                                    bool interruptible);
 407 extern int vmw_dmabuf_to_vram(struct vmw_private *dev_priv,
 408                               struct vmw_dma_buffer *buf,
 409                               bool pin, bool interruptible);
 410 extern int vmw_dmabuf_to_vram_or_gmr(struct vmw_private *dev_priv,
 411                                      struct vmw_dma_buffer *buf,
 412                                      bool pin, bool interruptible);
 413 extern int vmw_dmabuf_to_start_of_vram(struct vmw_private *vmw_priv,
 414                                        struct vmw_dma_buffer *bo,
 415                                        bool pin, bool interruptible);
 416 extern int vmw_dmabuf_unpin(struct vmw_private *vmw_priv,
 417                             struct vmw_dma_buffer *bo,
 418                             bool interruptible);
 419 extern int vmw_dmabuf_to_system(struct vmw_private *vmw_priv,
 420                                 struct vmw_dma_buffer *bo,
 421                                 bool interruptible);
 422 extern void vmw_dmabuf_get_id_offset(struct vmw_dma_buffer *buf,
 423                                      uint32_t *gmrId, uint32_t *offset);
 424 extern void vmw_dmabuf_get_guest_ptr(struct vmw_dma_buffer *buf,
 425                                      SVGAGuestPtr *ptr);
 426
 427 /**
 428  * Misc Ioctl functionality - vmwgfx_ioctl.c
 429  */
 430
 431 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 432                               struct drm_file *file_priv);
 433 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
 434                                 struct drm_file *file_priv);
 435 extern int vmw_present_ioctl(struct drm_device *dev, void *data,
 436                              struct drm_file *file_priv);
 437 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
 438                                       struct drm_file *file_priv);
 439
 440 /**
 441  * Fifo utilities - vmwgfx_fifo.c
 442  */
 443
 444 extern int vmw_fifo_init(struct vmw_private *dev_priv,
 445                          struct vmw_fifo_state *fifo);
 446 extern void vmw_fifo_release(struct vmw_private *dev_priv,
 447                              struct vmw_fifo_state *fifo);
 448 extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes);
 449 extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
 450 extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
 451                                uint32_t *seqno);
 452 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 453 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
 454 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
 455
 456 /**
 457  * TTM glue - vmwgfx_ttm_glue.c
 458  */
 459
 460 extern int vmw_ttm_global_init(struct vmw_private *dev_priv);
 461 extern void vmw_ttm_global_release(struct vmw_private *dev_priv);
 462 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 463
 464 /**
 465  * TTM buffer object driver - vmwgfx_buffer.c
 466  */
 467
 468 extern struct ttm_placement vmw_vram_placement;
 469 extern struct ttm_placement vmw_vram_ne_placement;
 470 extern struct ttm_placement vmw_vram_sys_placement;
 471 extern struct ttm_placement vmw_vram_gmr_placement;
 472 extern struct ttm_placement vmw_vram_gmr_ne_placement;
 473 extern struct ttm_placement vmw_sys_placement;
 474 extern struct ttm_placement vmw_evictable_placement;
 475 extern struct ttm_bo_driver vmw_bo_driver;
 476 extern int vmw_dma_quiescent(struct drm_device *dev);
 477
 478 /**
 479  * Command submission - vmwgfx_execbuf.c
 480  */
 481
 482 extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 483                              struct drm_file *file_priv);
 484 extern int vmw_execbuf_process(struct drm_file *file_priv,
 485                                struct vmw_private *dev_priv,
 486                                void __user *user_commands,
 487                                void *kernel_commands,
 488                                uint32_t command_size,
 489                                uint64_t throttle_us,
 490                                struct drm_vmw_fence_rep __user
 491                                *user_fence_rep);
 492
 493 /**
 494  * IRQs and wating - vmwgfx_irq.c
 495  */
 496
 497 extern irqreturn_t vmw_irq_handler(DRM_IRQ_ARGS);
 498 extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
 499                              uint32_t seqno, bool interruptible,
 500                              unsigned long timeout);
 501 extern void vmw_irq_preinstall(struct drm_device *dev);
 502 extern int vmw_irq_postinstall(struct drm_device *dev);
 503 extern void vmw_irq_uninstall(struct drm_device *dev);
 504 extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
 505                                 uint32_t seqno);
 506 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
 507                              bool lazy,
 508                              bool fifo_idle,
 509                              uint32_t seqno,
 510                              bool interruptible,
 511                              unsigned long timeout);
 512 extern void vmw_update_seqno(struct vmw_private *dev_priv,
 513                                 struct vmw_fifo_state *fifo_state);
 514 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
 515 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
 516
 517 /**
 518  * Rudimentary fence-like objects currently used only for throttling -
 519  * vmwgfx_marker.c
 520  */
 521
 522 extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
 523 extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
 524 extern int vmw_marker_push(struct vmw_marker_queue *queue,
 525                           uint32_t seqno);
 526 extern int vmw_marker_pull(struct vmw_marker_queue *queue,
 527                           uint32_t signaled_seqno);
 528 extern int vmw_wait_lag(struct vmw_private *dev_priv,
 529                         struct vmw_marker_queue *queue, uint32_t us);
 530
 531 /**
 532  * Kernel framebuffer - vmwgfx_fb.c
 533  */
 534
 535 int vmw_fb_init(struct vmw_private *vmw_priv);
 536 int vmw_fb_close(struct vmw_private *dev_priv);
 537 int vmw_fb_off(struct vmw_private *vmw_priv);
 538 int vmw_fb_on(struct vmw_private *vmw_priv);
 539
 540 /**
 541  * Kernel modesetting - vmwgfx_kms.c
 542  */
 543
 544 int vmw_kms_init(struct vmw_private *dev_priv);
 545 int vmw_kms_close(struct vmw_private *dev_priv);
 546 int vmw_kms_save_vga(struct vmw_private *vmw_priv);
 547 int vmw_kms_restore_vga(struct vmw_private *vmw_priv);
 548 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
 549                                 struct drm_file *file_priv);
 550 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
 551 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 552                           struct ttm_object_file *tfile,
 553                           struct ttm_buffer_object *bo,
 554                           SVGA3dCmdHeader *header);
 555 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
 556                        unsigned width, unsigned height, unsigned pitch,
 557                        unsigned bpp, unsigned depth);
 558 void vmw_kms_idle_workqueues(struct vmw_master *vmaster);
 559 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
 560                                 uint32_t pitch,
 561                                 uint32_t height);
 562 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc);
 563 int vmw_kms_present(struct vmw_private *dev_priv,
 564                     struct drm_file *file_priv,
 565                     struct vmw_framebuffer *vfb,
 566                     struct vmw_surface *surface,
 567                     uint32_t sid, int32_t destX, int32_t destY,
 568                     struct drm_vmw_rect *clips,
 569                     uint32_t num_clips);
 570 int vmw_kms_readback(struct vmw_private *dev_priv,
 571                      struct drm_file *file_priv,
 572                      struct vmw_framebuffer *vfb,
 573                      struct drm_vmw_fence_rep __user *user_fence_rep,
 574                      struct drm_vmw_rect *clips,
 575                      uint32_t num_clips);
 576
 577 /**
 578  * Overlay control - vmwgfx_overlay.c
 579  */
 580
 581 int vmw_overlay_init(struct vmw_private *dev_priv);
 582 int vmw_overlay_close(struct vmw_private *dev_priv);
 583 int vmw_overlay_ioctl(struct drm_device *dev, void *data,
 584                       struct drm_file *file_priv);
 585 int vmw_overlay_stop_all(struct vmw_private *dev_priv);
 586 int vmw_overlay_resume_all(struct vmw_private *dev_priv);
 587 int vmw_overlay_pause_all(struct vmw_private *dev_priv);
 588 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
 589 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
 590 int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
 591 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
 592
 593 /**
 594  * GMR Id manager
 595  */
 596
 597 extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func;
 598
 599 /**
 600  * Inline helper functions
 601  */
 602
 603 static inline void vmw_surface_unreference(struct vmw_surface **srf)
 604 {
 605         struct vmw_surface *tmp_srf = *srf;
 606         struct vmw_resource *res = &tmp_srf->res;
 607         *srf = NULL;
 608
 609         vmw_resource_unreference(&res);
 610 }
 611
 612 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
 613 {
 614         (void) vmw_resource_reference(&srf->res);
 615         return srf;
 616 }
 617
 618 static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf)
 619 {
 620         struct vmw_dma_buffer *tmp_buf = *buf;
 621         struct ttm_buffer_object *bo = &tmp_buf->base;
 622         *buf = NULL;
 623
 624         ttm_bo_unref(&bo);
 625 }
 626
 627 static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf)
 628 {
 629         if (ttm_bo_reference(&buf->base))
 630                 return buf;
 631         return NULL;
 632 }
 633
 634 static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
 635 {
 636         return (struct ttm_mem_global *) dev_priv->mem_global_ref.object;
 637 }
 638 #endif