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 <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
  62 struct vmw_fpriv {
  63         struct drm_master *locked_master;
  64         struct ttm_object_file *tfile;
  65         struct list_head fence_events;
  66 };
  67
  68 struct vmw_dma_buffer {
  69         struct ttm_buffer_object base;
  70         struct list_head validate_list;
  71         bool gmr_bound;
  72         uint32_t cur_validate_node;
  73         bool on_validate_list;
  74 };
  75
  76 struct vmw_resource {
  77         struct kref kref;
  78         struct vmw_private *dev_priv;
  79         struct idr *idr;
  80         int id;
  81         enum ttm_object_type res_type;
  82         bool avail;
  83         void (*remove_from_lists) (struct vmw_resource *res);
  84         void (*hw_destroy) (struct vmw_resource *res);
  85         void (*res_free) (struct vmw_resource *res);
  86         struct list_head validate_head;
  87         struct list_head query_head; /* Protected by the cmdbuf mutex */
  88         /* TODO is a generic snooper needed? */
  89 #if 0
  90         void (*snoop)(struct vmw_resource *res,
  91                       struct ttm_object_file *tfile,
  92                       SVGA3dCmdHeader *header);
  93         void *snoop_priv;
  94 #endif
  95 };
  96
  97 struct vmw_cursor_snooper {
  98         struct drm_crtc *crtc;
  99         size_t age;
 100         uint32_t *image;
 101 };
 102
 103 struct vmw_framebuffer;
 104 struct vmw_surface_offset;
 105
 106 struct vmw_surface {
 107         struct vmw_resource res;
 108         struct list_head lru_head; /* Protected by the resource lock */
 109         uint32_t flags;
 110         uint32_t format;
 111         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 112         struct drm_vmw_size *sizes;
 113         uint32_t num_sizes;
 114
 115         bool scanout;
 116
 117         /* TODO so far just a extra pointer */
 118         struct vmw_cursor_snooper snooper;
 119         struct ttm_buffer_object *backup;
 120         struct vmw_surface_offset *offsets;
 121         uint32_t backup_size;
 122 };
 123
 124 struct vmw_marker_queue {
 125         struct list_head head;
 126         struct timespec lag;
 127         struct timespec lag_time;
 128         spinlock_t lock;
 129 };
 130
 131 struct vmw_fifo_state {
 132         unsigned long reserved_size;
 133         __le32 *dynamic_buffer;
 134         __le32 *static_buffer;
 135         unsigned long static_buffer_size;
 136         bool using_bounce_buffer;
 137         uint32_t capabilities;
 138         struct mutex fifo_mutex;
 139         struct rw_semaphore rwsem;
 140         struct vmw_marker_queue marker_queue;
 141 };
 142
 143 struct vmw_relocation {
 144         SVGAGuestPtr *location;
 145         uint32_t index;
 146 };
 147
 148 struct vmw_sw_context{
 149         struct ida bo_list;
 150         uint32_t last_cid;
 151         bool cid_valid;
 152         bool kernel; /**< is the called made from the kernel */
 153         struct vmw_resource *cur_ctx;
 154         uint32_t last_sid;
 155         uint32_t sid_translation;
 156         bool sid_valid;
 157         struct ttm_object_file *tfile;
 158         struct list_head validate_nodes;
 159         struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
 160         uint32_t cur_reloc;
 161         struct ttm_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS];
 162         uint32_t cur_val_buf;
 163         uint32_t *cmd_bounce;
 164         uint32_t cmd_bounce_size;
 165         struct list_head resource_list;
 166         uint32_t fence_flags;
 167         struct list_head query_list;
 168         struct ttm_buffer_object *cur_query_bo;
 169         uint32_t cur_query_cid;
 170         bool query_cid_valid;
 171 };
 172
 173 struct vmw_legacy_display;
 174 struct vmw_overlay;
 175
 176 struct vmw_master {
 177         struct ttm_lock lock;
 178         struct mutex fb_surf_mutex;
 179         struct list_head fb_surf;
 180 };
 181
 182 struct vmw_vga_topology_state {
 183         uint32_t width;
 184         uint32_t height;
 185         uint32_t primary;
 186         uint32_t pos_x;
 187         uint32_t pos_y;
 188 };
 189
 190 struct vmw_private {
 191         struct ttm_bo_device bdev;
 192         struct ttm_bo_global_ref bo_global_ref;
 193         struct drm_global_reference mem_global_ref;
 194
 195         struct vmw_fifo_state fifo;
 196
 197         struct drm_device *dev;
 198         unsigned long vmw_chipset;
 199         unsigned int io_start;
 200         uint32_t vram_start;
 201         uint32_t vram_size;
 202         uint32_t mmio_start;
 203         uint32_t mmio_size;
 204         uint32_t fb_max_width;
 205         uint32_t fb_max_height;
 206         uint32_t initial_width;
 207         uint32_t initial_height;
 208         __le32 __iomem *mmio_virt;
 209         int mmio_mtrr;
 210         uint32_t capabilities;
 211         uint32_t max_gmr_descriptors;
 212         uint32_t max_gmr_ids;
 213         uint32_t max_gmr_pages;
 214         uint32_t memory_size;
 215         bool has_gmr;
 216         struct mutex hw_mutex;
 217
 218         /*
 219          * VGA registers.
 220          */
 221
 222         struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS];
 223         uint32_t vga_width;
 224         uint32_t vga_height;
 225         uint32_t vga_bpp;
 226         uint32_t vga_bpl;
 227         uint32_t vga_pitchlock;
 228
 229         uint32_t num_displays;
 230
 231         /*
 232          * Framebuffer info.
 233          */
 234
 235         void *fb_info;
 236         struct vmw_legacy_display *ldu_priv;
 237         struct vmw_screen_object_display *sou_priv;
 238         struct vmw_overlay *overlay_priv;
 239
 240         /*
 241          * Context and surface management.
 242          */
 243
 244         rwlock_t resource_lock;
 245         struct idr context_idr;
 246         struct idr surface_idr;
 247         struct idr stream_idr;
 248
 249         /*
 250          * Block lastclose from racing with firstopen.
 251          */
 252
 253         struct mutex init_mutex;
 254
 255         /*
 256          * A resource manager for kernel-only surfaces and
 257          * contexts.
 258          */
 259
 260         struct ttm_object_device *tdev;
 261
 262         /*
 263          * Fencing and IRQs.
 264          */
 265
 266         atomic_t marker_seq;
 267         wait_queue_head_t fence_queue;
 268         wait_queue_head_t fifo_queue;
 269         int fence_queue_waiters; /* Protected by hw_mutex */
 270         int goal_queue_waiters; /* Protected by hw_mutex */
 271         atomic_t fifo_queue_waiters;
 272         uint32_t last_read_seqno;
 273         spinlock_t irq_lock;
 274         struct vmw_fence_manager *fman;
 275         uint32_t irq_mask;
 276
 277         /*
 278          * Device state
 279          */
 280
 281         uint32_t traces_state;
 282         uint32_t enable_state;
 283         uint32_t config_done_state;
 284
 285         /**
 286          * Execbuf
 287          */
 288         /**
 289          * Protected by the cmdbuf mutex.
 290          */
 291
 292         struct vmw_sw_context ctx;
 293         struct mutex cmdbuf_mutex;
 294
 295         /**
 296          * Operating mode.
 297          */
 298
 299         bool stealth;
 300         bool is_opened;
 301         bool enable_fb;
 302
 303         /**
 304          * Master management.
 305          */
 306
 307         struct vmw_master *active_master;
 308         struct vmw_master fbdev_master;
 309         struct notifier_block pm_nb;
 310         bool suspended;
 311
 312         struct mutex release_mutex;
 313         uint32_t num_3d_resources;
 314
 315         /*
 316          * Query processing. These members
 317          * are protected by the cmdbuf mutex.
 318          */
 319
 320         struct ttm_buffer_object *dummy_query_bo;
 321         struct ttm_buffer_object *pinned_bo;
 322         uint32_t query_cid;
 323         bool dummy_query_bo_pinned;
 324
 325         /*
 326          * Surface swapping. The "surface_lru" list is protected by the
 327          * resource lock in order to be able to destroy a surface and take
 328          * it off the lru atomically. "used_memory_size" is currently
 329          * protected by the cmdbuf mutex for simplicity.
 330          */
 331
 332         struct list_head surface_lru;
 333         uint32_t used_memory_size;
 334 };
 335
 336 static inline struct vmw_private *vmw_priv(struct drm_device *dev)
 337 {
 338         return (struct vmw_private *)dev->dev_private;
 339 }
 340
 341 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
 342 {
 343         return (struct vmw_fpriv *)file_priv->driver_priv;
 344 }
 345
 346 static inline struct vmw_master *vmw_master(struct drm_master *master)
 347 {
 348         return (struct vmw_master *) master->driver_priv;
 349 }
 350
 351 static inline void vmw_write(struct vmw_private *dev_priv,
 352                              unsigned int offset, uint32_t value)
 353 {
 354         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 355         outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
 356 }
 357
 358 static inline uint32_t vmw_read(struct vmw_private *dev_priv,
 359                                 unsigned int offset)
 360 {
 361         uint32_t val;
 362
 363         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 364         val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
 365         return val;
 366 }
 367
 368 int vmw_3d_resource_inc(struct vmw_private *dev_priv, bool unhide_svga);
 369 void vmw_3d_resource_dec(struct vmw_private *dev_priv, bool hide_svga);
 370
 371 /**
 372  * GMR utilities - vmwgfx_gmr.c
 373  */
 374
 375 extern int vmw_gmr_bind(struct vmw_private *dev_priv,
 376                         struct page *pages[],
 377                         unsigned long num_pages,
 378                         int gmr_id);
 379 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
 380
 381 /**
 382  * Resource utilities - vmwgfx_resource.c
 383  */
 384
 385 extern struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv);
 386 extern void vmw_resource_unreference(struct vmw_resource **p_res);
 387 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
 388 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
 389                                      struct drm_file *file_priv);
 390 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
 391                                     struct drm_file *file_priv);
 392 extern int vmw_context_check(struct vmw_private *dev_priv,
 393                              struct ttm_object_file *tfile,
 394                              int id,
 395                              struct vmw_resource **p_res);
 396 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
 397                                   struct ttm_object_file *tfile,
 398                                   uint32_t handle,
 399                                   struct vmw_surface **out_surf,
 400                                   struct vmw_dma_buffer **out_buf);
 401 extern void vmw_surface_res_free(struct vmw_resource *res);
 402 extern int vmw_surface_init(struct vmw_private *dev_priv,
 403                             struct vmw_surface *srf,
 404                             void (*res_free) (struct vmw_resource *res));
 405 extern int vmw_user_surface_lookup_handle(struct vmw_private *dev_priv,
 406                                           struct ttm_object_file *tfile,
 407                                           uint32_t handle,
 408                                           struct vmw_surface **out);
 409 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
 410                                      struct drm_file *file_priv);
 411 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
 412                                     struct drm_file *file_priv);
 413 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
 414                                        struct drm_file *file_priv);
 415 extern int vmw_surface_check(struct vmw_private *dev_priv,
 416                              struct ttm_object_file *tfile,
 417                              uint32_t handle, int *id);
 418 extern int vmw_surface_validate(struct vmw_private *dev_priv,
 419                                 struct vmw_surface *srf);
 420 extern void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo);
 421 extern int vmw_dmabuf_init(struct vmw_private *dev_priv,
 422                            struct vmw_dma_buffer *vmw_bo,
 423                            size_t size, struct ttm_placement *placement,
 424                            bool interuptable,
 425                            void (*bo_free) (struct ttm_buffer_object *bo));
 426 extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data,
 427                                   struct drm_file *file_priv);
 428 extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data,
 429                                   struct drm_file *file_priv);
 430 extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo,
 431                                          uint32_t cur_validate_node);
 432 extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo);
 433 extern int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile,
 434                                   uint32_t id, struct vmw_dma_buffer **out);
 435 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
 436                                   struct drm_file *file_priv);
 437 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
 438                                   struct drm_file *file_priv);
 439 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
 440                                   struct ttm_object_file *tfile,
 441                                   uint32_t *inout_id,
 442                                   struct vmw_resource **out);
 443 extern void vmw_resource_unreserve(struct list_head *list);
 444
 445 /**
 446  * DMA buffer helper routines - vmwgfx_dmabuf.c
 447  */
 448 extern int vmw_dmabuf_to_placement(struct vmw_private *vmw_priv,
 449                                    struct vmw_dma_buffer *bo,
 450                                    struct ttm_placement *placement,
 451                                    bool interruptible);
 452 extern int vmw_dmabuf_to_vram(struct vmw_private *dev_priv,
 453                               struct vmw_dma_buffer *buf,
 454                               bool pin, bool interruptible);
 455 extern int vmw_dmabuf_to_vram_or_gmr(struct vmw_private *dev_priv,
 456                                      struct vmw_dma_buffer *buf,
 457                                      bool pin, bool interruptible);
 458 extern int vmw_dmabuf_to_start_of_vram(struct vmw_private *vmw_priv,
 459                                        struct vmw_dma_buffer *bo,
 460                                        bool pin, bool interruptible);
 461 extern int vmw_dmabuf_unpin(struct vmw_private *vmw_priv,
 462                             struct vmw_dma_buffer *bo,
 463                             bool interruptible);
 464 extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
 465                                  SVGAGuestPtr *ptr);
 466 extern void vmw_bo_pin(struct ttm_buffer_object *bo, bool pin);
 467
 468 /**
 469  * Misc Ioctl functionality - vmwgfx_ioctl.c
 470  */
 471
 472 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 473                               struct drm_file *file_priv);
 474 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
 475                                 struct drm_file *file_priv);
 476 extern int vmw_present_ioctl(struct drm_device *dev, void *data,
 477                              struct drm_file *file_priv);
 478 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
 479                                       struct drm_file *file_priv);
 480 extern unsigned int vmw_fops_poll(struct file *filp,
 481                                   struct poll_table_struct *wait);
 482 extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
 483                              size_t count, loff_t *offset);
 484
 485 /**
 486  * Fifo utilities - vmwgfx_fifo.c
 487  */
 488
 489 extern int vmw_fifo_init(struct vmw_private *dev_priv,
 490                          struct vmw_fifo_state *fifo);
 491 extern void vmw_fifo_release(struct vmw_private *dev_priv,
 492                              struct vmw_fifo_state *fifo);
 493 extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes);
 494 extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
 495 extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
 496                                uint32_t *seqno);
 497 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 498 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
 499 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
 500 extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv,
 501                                      uint32_t cid);
 502
 503 /**
 504  * TTM glue - vmwgfx_ttm_glue.c
 505  */
 506
 507 extern int vmw_ttm_global_init(struct vmw_private *dev_priv);
 508 extern void vmw_ttm_global_release(struct vmw_private *dev_priv);
 509 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 510
 511 /**
 512  * TTM buffer object driver - vmwgfx_buffer.c
 513  */
 514
 515 extern struct ttm_placement vmw_vram_placement;
 516 extern struct ttm_placement vmw_vram_ne_placement;
 517 extern struct ttm_placement vmw_vram_sys_placement;
 518 extern struct ttm_placement vmw_vram_gmr_placement;
 519 extern struct ttm_placement vmw_vram_gmr_ne_placement;
 520 extern struct ttm_placement vmw_sys_placement;
 521 extern struct ttm_placement vmw_evictable_placement;
 522 extern struct ttm_placement vmw_srf_placement;
 523 extern struct ttm_bo_driver vmw_bo_driver;
 524 extern int vmw_dma_quiescent(struct drm_device *dev);
 525
 526 /**
 527  * Command submission - vmwgfx_execbuf.c
 528  */
 529
 530 extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 531                              struct drm_file *file_priv);
 532 extern int vmw_execbuf_process(struct drm_file *file_priv,
 533                                struct vmw_private *dev_priv,
 534                                void __user *user_commands,
 535                                void *kernel_commands,
 536                                uint32_t command_size,
 537                                uint64_t throttle_us,
 538                                struct drm_vmw_fence_rep __user
 539                                *user_fence_rep,
 540                                struct vmw_fence_obj **out_fence);
 541
 542 extern void
 543 vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
 544                               bool only_on_cid_match, uint32_t cid);
 545
 546 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
 547                                       struct vmw_private *dev_priv,
 548                                       struct vmw_fence_obj **p_fence,
 549                                       uint32_t *p_handle);
 550 extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
 551                                         struct vmw_fpriv *vmw_fp,
 552                                         int ret,
 553                                         struct drm_vmw_fence_rep __user
 554                                         *user_fence_rep,
 555                                         struct vmw_fence_obj *fence,
 556                                         uint32_t fence_handle);
 557
 558 /**
 559  * IRQs and wating - vmwgfx_irq.c
 560  */
 561
 562 extern irqreturn_t vmw_irq_handler(DRM_IRQ_ARGS);
 563 extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
 564                              uint32_t seqno, bool interruptible,
 565                              unsigned long timeout);
 566 extern void vmw_irq_preinstall(struct drm_device *dev);
 567 extern int vmw_irq_postinstall(struct drm_device *dev);
 568 extern void vmw_irq_uninstall(struct drm_device *dev);
 569 extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
 570                                 uint32_t seqno);
 571 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
 572                              bool lazy,
 573                              bool fifo_idle,
 574                              uint32_t seqno,
 575                              bool interruptible,
 576                              unsigned long timeout);
 577 extern void vmw_update_seqno(struct vmw_private *dev_priv,
 578                                 struct vmw_fifo_state *fifo_state);
 579 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
 580 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
 581 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
 582 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
 583
 584 /**
 585  * Rudimentary fence-like objects currently used only for throttling -
 586  * vmwgfx_marker.c
 587  */
 588
 589 extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
 590 extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
 591 extern int vmw_marker_push(struct vmw_marker_queue *queue,
 592                           uint32_t seqno);
 593 extern int vmw_marker_pull(struct vmw_marker_queue *queue,
 594                           uint32_t signaled_seqno);
 595 extern int vmw_wait_lag(struct vmw_private *dev_priv,
 596                         struct vmw_marker_queue *queue, uint32_t us);
 597
 598 /**
 599  * Kernel framebuffer - vmwgfx_fb.c
 600  */
 601
 602 int vmw_fb_init(struct vmw_private *vmw_priv);
 603 int vmw_fb_close(struct vmw_private *dev_priv);
 604 int vmw_fb_off(struct vmw_private *vmw_priv);
 605 int vmw_fb_on(struct vmw_private *vmw_priv);
 606
 607 /**
 608  * Kernel modesetting - vmwgfx_kms.c
 609  */
 610
 611 int vmw_kms_init(struct vmw_private *dev_priv);
 612 int vmw_kms_close(struct vmw_private *dev_priv);
 613 int vmw_kms_save_vga(struct vmw_private *vmw_priv);
 614 int vmw_kms_restore_vga(struct vmw_private *vmw_priv);
 615 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
 616                                 struct drm_file *file_priv);
 617 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
 618 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 619                           struct ttm_object_file *tfile,
 620                           struct ttm_buffer_object *bo,
 621                           SVGA3dCmdHeader *header);
 622 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
 623                        unsigned width, unsigned height, unsigned pitch,
 624                        unsigned bpp, unsigned depth);
 625 void vmw_kms_idle_workqueues(struct vmw_master *vmaster);
 626 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
 627                                 uint32_t pitch,
 628                                 uint32_t height);
 629 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc);
 630 int vmw_enable_vblank(struct drm_device *dev, int crtc);
 631 void vmw_disable_vblank(struct drm_device *dev, int crtc);
 632 int vmw_kms_present(struct vmw_private *dev_priv,
 633                     struct drm_file *file_priv,
 634                     struct vmw_framebuffer *vfb,
 635                     struct vmw_surface *surface,
 636                     uint32_t sid, int32_t destX, int32_t destY,
 637                     struct drm_vmw_rect *clips,
 638                     uint32_t num_clips);
 639 int vmw_kms_readback(struct vmw_private *dev_priv,
 640                      struct drm_file *file_priv,
 641                      struct vmw_framebuffer *vfb,
 642                      struct drm_vmw_fence_rep __user *user_fence_rep,
 643                      struct drm_vmw_rect *clips,
 644                      uint32_t num_clips);
 645 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 646                                 struct drm_file *file_priv);
 647
 648 int vmw_dumb_create(struct drm_file *file_priv,
 649                     struct drm_device *dev,
 650                     struct drm_mode_create_dumb *args);
 651
 652 int vmw_dumb_map_offset(struct drm_file *file_priv,
 653                         struct drm_device *dev, uint32_t handle,
 654                         uint64_t *offset);
 655 int vmw_dumb_destroy(struct drm_file *file_priv,
 656                      struct drm_device *dev,
 657                      uint32_t handle);
 658 /**
 659  * Overlay control - vmwgfx_overlay.c
 660  */
 661
 662 int vmw_overlay_init(struct vmw_private *dev_priv);
 663 int vmw_overlay_close(struct vmw_private *dev_priv);
 664 int vmw_overlay_ioctl(struct drm_device *dev, void *data,
 665                       struct drm_file *file_priv);
 666 int vmw_overlay_stop_all(struct vmw_private *dev_priv);
 667 int vmw_overlay_resume_all(struct vmw_private *dev_priv);
 668 int vmw_overlay_pause_all(struct vmw_private *dev_priv);
 669 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
 670 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
 671 int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
 672 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
 673
 674 /**
 675  * GMR Id manager
 676  */
 677
 678 extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func;
 679
 680 /**
 681  * Inline helper functions
 682  */
 683
 684 static inline void vmw_surface_unreference(struct vmw_surface **srf)
 685 {
 686         struct vmw_surface *tmp_srf = *srf;
 687         struct vmw_resource *res = &tmp_srf->res;
 688         *srf = NULL;
 689
 690         vmw_resource_unreference(&res);
 691 }
 692
 693 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
 694 {
 695         (void) vmw_resource_reference(&srf->res);
 696         return srf;
 697 }
 698
 699 static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf)
 700 {
 701         struct vmw_dma_buffer *tmp_buf = *buf;
 702
 703         *buf = NULL;
 704         if (tmp_buf != NULL) {
 705                 struct ttm_buffer_object *bo = &tmp_buf->base;
 706
 707                 ttm_bo_unref(&bo);
 708         }
 709 }
 710
 711 static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf)
 712 {
 713         if (ttm_bo_reference(&buf->base))
 714                 return buf;
 715         return NULL;
 716 }
 717
 718 static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
 719 {
 720         return (struct ttm_mem_global *) dev_priv->mem_global_ref.object;
 721 }
 722 #endif