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 <drm/drm_auth.h> 36 #include <linux/suspend.h> 37 #include <drm/ttm/ttm_bo_driver.h> 38 #include <drm/ttm/ttm_object.h> 39 #include <drm/ttm/ttm_lock.h> 40 #include <drm/ttm/ttm_execbuf_util.h> 41 #include <drm/ttm/ttm_module.h> 42 #include "vmwgfx_fence.h" 43 #include <linux/sync_file.h> 44 45 #define VMWGFX_DRIVER_NAME "vmwgfx" 46 #define VMWGFX_DRIVER_DATE "20170612" 47 #define VMWGFX_DRIVER_MAJOR 2 48 #define VMWGFX_DRIVER_MINOR 14 49 #define VMWGFX_DRIVER_PATCHLEVEL 0 50 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000 51 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024) 52 #define VMWGFX_MAX_RELOCATIONS 2048 53 #define VMWGFX_MAX_VALIDATIONS 2048 54 #define VMWGFX_MAX_DISPLAYS 16 55 #define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768 56 #define VMWGFX_ENABLE_SCREEN_TARGET_OTABLE 1 57 58 /* 59 * Perhaps we should have sysfs entries for these. 60 */ 61 #define VMWGFX_NUM_GB_CONTEXT 256 62 #define VMWGFX_NUM_GB_SHADER 20000 63 #define VMWGFX_NUM_GB_SURFACE 32768 64 #define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS 65 #define VMWGFX_NUM_DXCONTEXT 256 66 #define VMWGFX_NUM_DXQUERY 512 67 #define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\ 68 VMWGFX_NUM_GB_SHADER +\ 69 VMWGFX_NUM_GB_SURFACE +\ 70 VMWGFX_NUM_GB_SCREEN_TARGET) 71 72 #define VMW_PL_GMR (TTM_PL_PRIV + 0) 73 #define VMW_PL_FLAG_GMR (TTM_PL_FLAG_PRIV << 0) 74 #define VMW_PL_MOB (TTM_PL_PRIV + 1) 75 #define VMW_PL_FLAG_MOB (TTM_PL_FLAG_PRIV << 1) 76 77 #define VMW_RES_CONTEXT ttm_driver_type0 78 #define VMW_RES_SURFACE ttm_driver_type1 79 #define VMW_RES_STREAM ttm_driver_type2 80 #define VMW_RES_FENCE ttm_driver_type3 81 #define VMW_RES_SHADER ttm_driver_type4 82 83 struct vmw_fpriv { 84 struct drm_master *locked_master; 85 struct ttm_object_file *tfile; 86 bool gb_aware; 87 }; 88 89 struct vmw_dma_buffer { 90 struct ttm_buffer_object base; 91 struct list_head res_list; 92 s32 pin_count; 93 /* Not ref-counted. Protected by binding_mutex */ 94 struct vmw_resource *dx_query_ctx; 95 }; 96 97 /** 98 * struct vmw_validate_buffer - Carries validation info about buffers. 99 * 100 * @base: Validation info for TTM. 101 * @hash: Hash entry for quick lookup of the TTM buffer object. 102 * 103 * This structure contains also driver private validation info 104 * on top of the info needed by TTM. 105 */ 106 struct vmw_validate_buffer { 107 struct ttm_validate_buffer base; 108 struct drm_hash_item hash; 109 bool validate_as_mob; 110 }; 111 112 struct vmw_res_func; 113 struct vmw_resource { 114 struct kref kref; 115 struct vmw_private *dev_priv; 116 int id; 117 bool avail; 118 unsigned long backup_size; 119 bool res_dirty; /* Protected by backup buffer reserved */ 120 bool backup_dirty; /* Protected by backup buffer reserved */ 121 struct vmw_dma_buffer *backup; 122 unsigned long backup_offset; 123 unsigned long pin_count; /* Protected by resource reserved */ 124 const struct vmw_res_func *func; 125 struct list_head lru_head; /* Protected by the resource lock */ 126 struct list_head mob_head; /* Protected by @backup reserved */ 127 struct list_head binding_head; /* Protected by binding_mutex */ 128 void (*res_free) (struct vmw_resource *res); 129 void (*hw_destroy) (struct vmw_resource *res); 130 }; 131 132 133 /* 134 * Resources that are managed using ioctls. 135 */ 136 enum vmw_res_type { 137 vmw_res_context, 138 vmw_res_surface, 139 vmw_res_stream, 140 vmw_res_shader, 141 vmw_res_dx_context, 142 vmw_res_cotable, 143 vmw_res_view, 144 vmw_res_max 145 }; 146 147 /* 148 * Resources that are managed using command streams. 149 */ 150 enum vmw_cmdbuf_res_type { 151 vmw_cmdbuf_res_shader, 152 vmw_cmdbuf_res_view 153 }; 154 155 struct vmw_cmdbuf_res_manager; 156 157 struct vmw_cursor_snooper { 158 size_t age; 159 uint32_t *image; 160 }; 161 162 struct vmw_framebuffer; 163 struct vmw_surface_offset; 164 165 struct vmw_surface { 166 struct vmw_resource res; 167 uint32_t flags; 168 uint32_t format; 169 uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES]; 170 struct drm_vmw_size base_size; 171 struct drm_vmw_size *sizes; 172 uint32_t num_sizes; 173 bool scanout; 174 uint32_t array_size; 175 /* TODO so far just a extra pointer */ 176 struct vmw_cursor_snooper snooper; 177 struct vmw_surface_offset *offsets; 178 SVGA3dTextureFilter autogen_filter; 179 uint32_t multisample_count; 180 struct list_head view_list; 181 }; 182 183 struct vmw_marker_queue { 184 struct list_head head; 185 u64 lag; 186 u64 lag_time; 187 spinlock_t lock; 188 }; 189 190 struct vmw_fifo_state { 191 unsigned long reserved_size; 192 u32 *dynamic_buffer; 193 u32 *static_buffer; 194 unsigned long static_buffer_size; 195 bool using_bounce_buffer; 196 uint32_t capabilities; 197 struct mutex fifo_mutex; 198 struct rw_semaphore rwsem; 199 struct vmw_marker_queue marker_queue; 200 bool dx; 201 }; 202 203 struct vmw_relocation { 204 SVGAMobId *mob_loc; 205 SVGAGuestPtr *location; 206 uint32_t index; 207 }; 208 209 /** 210 * struct vmw_res_cache_entry - resource information cache entry 211 * 212 * @valid: Whether the entry is valid, which also implies that the execbuf 213 * code holds a reference to the resource, and it's placed on the 214 * validation list. 215 * @handle: User-space handle of a resource. 216 * @res: Non-ref-counted pointer to the resource. 217 * 218 * Used to avoid frequent repeated user-space handle lookups of the 219 * same resource. 220 */ 221 struct vmw_res_cache_entry { 222 bool valid; 223 uint32_t handle; 224 struct vmw_resource *res; 225 struct vmw_resource_val_node *node; 226 }; 227 228 /** 229 * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings. 230 */ 231 enum vmw_dma_map_mode { 232 vmw_dma_phys, /* Use physical page addresses */ 233 vmw_dma_alloc_coherent, /* Use TTM coherent pages */ 234 vmw_dma_map_populate, /* Unmap from DMA just after unpopulate */ 235 vmw_dma_map_bind, /* Unmap from DMA just before unbind */ 236 vmw_dma_map_max 237 }; 238 239 /** 240 * struct vmw_sg_table - Scatter/gather table for binding, with additional 241 * device-specific information. 242 * 243 * @sgt: Pointer to a struct sg_table with binding information 244 * @num_regions: Number of regions with device-address contiguous pages 245 */ 246 struct vmw_sg_table { 247 enum vmw_dma_map_mode mode; 248 struct page **pages; 249 const dma_addr_t *addrs; 250 struct sg_table *sgt; 251 unsigned long num_regions; 252 unsigned long num_pages; 253 }; 254 255 /** 256 * struct vmw_piter - Page iterator that iterates over a list of pages 257 * and DMA addresses that could be either a scatter-gather list or 258 * arrays 259 * 260 * @pages: Array of page pointers to the pages. 261 * @addrs: DMA addresses to the pages if coherent pages are used. 262 * @iter: Scatter-gather page iterator. Current position in SG list. 263 * @i: Current position in arrays. 264 * @num_pages: Number of pages total. 265 * @next: Function to advance the iterator. Returns false if past the list 266 * of pages, true otherwise. 267 * @dma_address: Function to return the DMA address of the current page. 268 */ 269 struct vmw_piter { 270 struct page **pages; 271 const dma_addr_t *addrs; 272 struct sg_page_iter iter; 273 unsigned long i; 274 unsigned long num_pages; 275 bool (*next)(struct vmw_piter *); 276 dma_addr_t (*dma_address)(struct vmw_piter *); 277 struct page *(*page)(struct vmw_piter *); 278 }; 279 280 /* 281 * enum vmw_display_unit_type - Describes the display unit 282 */ 283 enum vmw_display_unit_type { 284 vmw_du_invalid = 0, 285 vmw_du_legacy, 286 vmw_du_screen_object, 287 vmw_du_screen_target 288 }; 289 290 291 struct vmw_sw_context{ 292 struct drm_open_hash res_ht; 293 bool res_ht_initialized; 294 bool kernel; /**< is the called made from the kernel */ 295 struct vmw_fpriv *fp; 296 struct list_head validate_nodes; 297 struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS]; 298 uint32_t cur_reloc; 299 struct vmw_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS]; 300 uint32_t cur_val_buf; 301 uint32_t *cmd_bounce; 302 uint32_t cmd_bounce_size; 303 struct list_head resource_list; 304 struct list_head ctx_resource_list; /* For contexts and cotables */ 305 struct vmw_dma_buffer *cur_query_bo; 306 struct list_head res_relocations; 307 uint32_t *buf_start; 308 struct vmw_res_cache_entry res_cache[vmw_res_max]; 309 struct vmw_resource *last_query_ctx; 310 bool needs_post_query_barrier; 311 struct vmw_resource *error_resource; 312 struct vmw_ctx_binding_state *staged_bindings; 313 bool staged_bindings_inuse; 314 struct list_head staged_cmd_res; 315 struct vmw_resource_val_node *dx_ctx_node; 316 struct vmw_dma_buffer *dx_query_mob; 317 struct vmw_resource *dx_query_ctx; 318 struct vmw_cmdbuf_res_manager *man; 319 }; 320 321 struct vmw_legacy_display; 322 struct vmw_overlay; 323 324 struct vmw_master { 325 struct ttm_lock lock; 326 }; 327 328 struct vmw_vga_topology_state { 329 uint32_t width; 330 uint32_t height; 331 uint32_t primary; 332 uint32_t pos_x; 333 uint32_t pos_y; 334 }; 335 336 337 /* 338 * struct vmw_otable - Guest Memory OBject table metadata 339 * 340 * @size: Size of the table (page-aligned). 341 * @page_table: Pointer to a struct vmw_mob holding the page table. 342 */ 343 struct vmw_otable { 344 unsigned long size; 345 struct vmw_mob *page_table; 346 bool enabled; 347 }; 348 349 struct vmw_otable_batch { 350 unsigned num_otables; 351 struct vmw_otable *otables; 352 struct vmw_resource *context; 353 struct ttm_buffer_object *otable_bo; 354 }; 355 356 enum { 357 VMW_IRQTHREAD_FENCE, 358 VMW_IRQTHREAD_CMDBUF, 359 VMW_IRQTHREAD_MAX 360 }; 361 362 struct vmw_private { 363 struct ttm_bo_device bdev; 364 struct ttm_bo_global_ref bo_global_ref; 365 struct drm_global_reference mem_global_ref; 366 367 struct vmw_fifo_state fifo; 368 369 struct drm_device *dev; 370 unsigned long vmw_chipset; 371 unsigned int io_start; 372 uint32_t vram_start; 373 uint32_t vram_size; 374 uint32_t prim_bb_mem; 375 uint32_t mmio_start; 376 uint32_t mmio_size; 377 uint32_t fb_max_width; 378 uint32_t fb_max_height; 379 uint32_t texture_max_width; 380 uint32_t texture_max_height; 381 uint32_t stdu_max_width; 382 uint32_t stdu_max_height; 383 uint32_t initial_width; 384 uint32_t initial_height; 385 u32 *mmio_virt; 386 uint32_t capabilities; 387 uint32_t max_gmr_ids; 388 uint32_t max_gmr_pages; 389 uint32_t max_mob_pages; 390 uint32_t max_mob_size; 391 uint32_t memory_size; 392 bool has_gmr; 393 bool has_mob; 394 spinlock_t hw_lock; 395 spinlock_t cap_lock; 396 bool has_dx; 397 bool assume_16bpp; 398 399 /* 400 * VGA registers. 401 */ 402 403 struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS]; 404 uint32_t vga_width; 405 uint32_t vga_height; 406 uint32_t vga_bpp; 407 uint32_t vga_bpl; 408 uint32_t vga_pitchlock; 409 410 uint32_t num_displays; 411 412 /* 413 * Framebuffer info. 414 */ 415 416 void *fb_info; 417 enum vmw_display_unit_type active_display_unit; 418 struct vmw_legacy_display *ldu_priv; 419 struct vmw_overlay *overlay_priv; 420 struct drm_property *hotplug_mode_update_property; 421 struct drm_property *implicit_placement_property; 422 unsigned num_implicit; 423 struct vmw_framebuffer *implicit_fb; 424 struct mutex global_kms_state_mutex; 425 spinlock_t cursor_lock; 426 427 /* 428 * Context and surface management. 429 */ 430 431 rwlock_t resource_lock; 432 struct idr res_idr[vmw_res_max]; 433 /* 434 * Block lastclose from racing with firstopen. 435 */ 436 437 struct mutex init_mutex; 438 439 /* 440 * A resource manager for kernel-only surfaces and 441 * contexts. 442 */ 443 444 struct ttm_object_device *tdev; 445 446 /* 447 * Fencing and IRQs. 448 */ 449 450 atomic_t marker_seq; 451 wait_queue_head_t fence_queue; 452 wait_queue_head_t fifo_queue; 453 spinlock_t waiter_lock; 454 int fence_queue_waiters; /* Protected by waiter_lock */ 455 int goal_queue_waiters; /* Protected by waiter_lock */ 456 int cmdbuf_waiters; /* Protected by waiter_lock */ 457 int error_waiters; /* Protected by waiter_lock */ 458 int fifo_queue_waiters; /* Protected by waiter_lock */ 459 uint32_t last_read_seqno; 460 struct vmw_fence_manager *fman; 461 uint32_t irq_mask; /* Updates protected by waiter_lock */ 462 463 /* 464 * Device state 465 */ 466 467 uint32_t traces_state; 468 uint32_t enable_state; 469 uint32_t config_done_state; 470 471 /** 472 * Execbuf 473 */ 474 /** 475 * Protected by the cmdbuf mutex. 476 */ 477 478 struct vmw_sw_context ctx; 479 struct mutex cmdbuf_mutex; 480 struct mutex binding_mutex; 481 482 /** 483 * Operating mode. 484 */ 485 486 bool stealth; 487 bool enable_fb; 488 spinlock_t svga_lock; 489 490 /** 491 * Master management. 492 */ 493 494 struct vmw_master *active_master; 495 struct vmw_master fbdev_master; 496 struct notifier_block pm_nb; 497 bool suspended; 498 bool refuse_hibernation; 499 500 struct mutex release_mutex; 501 atomic_t num_fifo_resources; 502 503 /* 504 * Replace this with an rwsem as soon as we have down_xx_interruptible() 505 */ 506 struct ttm_lock reservation_sem; 507 508 /* 509 * Query processing. These members 510 * are protected by the cmdbuf mutex. 511 */ 512 513 struct vmw_dma_buffer *dummy_query_bo; 514 struct vmw_dma_buffer *pinned_bo; 515 uint32_t query_cid; 516 uint32_t query_cid_valid; 517 bool dummy_query_bo_pinned; 518 519 /* 520 * Surface swapping. The "surface_lru" list is protected by the 521 * resource lock in order to be able to destroy a surface and take 522 * it off the lru atomically. "used_memory_size" is currently 523 * protected by the cmdbuf mutex for simplicity. 524 */ 525 526 struct list_head res_lru[vmw_res_max]; 527 uint32_t used_memory_size; 528 529 /* 530 * DMA mapping stuff. 531 */ 532 enum vmw_dma_map_mode map_mode; 533 534 /* 535 * Guest Backed stuff 536 */ 537 struct vmw_otable_batch otable_batch; 538 539 struct vmw_cmdbuf_man *cman; 540 DECLARE_BITMAP(irqthread_pending, VMW_IRQTHREAD_MAX); 541 }; 542 543 static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res) 544 { 545 return container_of(res, struct vmw_surface, res); 546 } 547 548 static inline struct vmw_private *vmw_priv(struct drm_device *dev) 549 { 550 return (struct vmw_private *)dev->dev_private; 551 } 552 553 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv) 554 { 555 return (struct vmw_fpriv *)file_priv->driver_priv; 556 } 557 558 static inline struct vmw_master *vmw_master(struct drm_master *master) 559 { 560 return (struct vmw_master *) master->driver_priv; 561 } 562 563 /* 564 * The locking here is fine-grained, so that it is performed once 565 * for every read- and write operation. This is of course costly, but we 566 * don't perform much register access in the timing critical paths anyway. 567 * Instead we have the extra benefit of being sure that we don't forget 568 * the hw lock around register accesses. 569 */ 570 static inline void vmw_write(struct vmw_private *dev_priv, 571 unsigned int offset, uint32_t value) 572 { 573 spin_lock(&dev_priv->hw_lock); 574 outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT); 575 outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT); 576 spin_unlock(&dev_priv->hw_lock); 577 } 578 579 static inline uint32_t vmw_read(struct vmw_private *dev_priv, 580 unsigned int offset) 581 { 582 u32 val; 583 584 spin_lock(&dev_priv->hw_lock); 585 outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT); 586 val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT); 587 spin_unlock(&dev_priv->hw_lock); 588 589 return val; 590 } 591 592 extern void vmw_svga_enable(struct vmw_private *dev_priv); 593 extern void vmw_svga_disable(struct vmw_private *dev_priv); 594 595 596 /** 597 * GMR utilities - vmwgfx_gmr.c 598 */ 599 600 extern int vmw_gmr_bind(struct vmw_private *dev_priv, 601 const struct vmw_sg_table *vsgt, 602 unsigned long num_pages, 603 int gmr_id); 604 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id); 605 606 /** 607 * Resource utilities - vmwgfx_resource.c 608 */ 609 struct vmw_user_resource_conv; 610 611 extern void vmw_resource_unreference(struct vmw_resource **p_res); 612 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res); 613 extern struct vmw_resource * 614 vmw_resource_reference_unless_doomed(struct vmw_resource *res); 615 extern int vmw_resource_validate(struct vmw_resource *res); 616 extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible, 617 bool no_backup); 618 extern bool vmw_resource_needs_backup(const struct vmw_resource *res); 619 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv, 620 struct ttm_object_file *tfile, 621 uint32_t handle, 622 struct vmw_surface **out_surf, 623 struct vmw_dma_buffer **out_buf); 624 extern int vmw_user_resource_lookup_handle( 625 struct vmw_private *dev_priv, 626 struct ttm_object_file *tfile, 627 uint32_t handle, 628 const struct vmw_user_resource_conv *converter, 629 struct vmw_resource **p_res); 630 extern void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo); 631 extern int vmw_dmabuf_init(struct vmw_private *dev_priv, 632 struct vmw_dma_buffer *vmw_bo, 633 size_t size, struct ttm_placement *placement, 634 bool interuptable, 635 void (*bo_free) (struct ttm_buffer_object *bo)); 636 extern int vmw_user_dmabuf_verify_access(struct ttm_buffer_object *bo, 637 struct ttm_object_file *tfile); 638 extern int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv, 639 struct ttm_object_file *tfile, 640 uint32_t size, 641 bool shareable, 642 uint32_t *handle, 643 struct vmw_dma_buffer **p_dma_buf, 644 struct ttm_base_object **p_base); 645 extern int vmw_user_dmabuf_reference(struct ttm_object_file *tfile, 646 struct vmw_dma_buffer *dma_buf, 647 uint32_t *handle); 648 extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data, 649 struct drm_file *file_priv); 650 extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data, 651 struct drm_file *file_priv); 652 extern int vmw_user_dmabuf_synccpu_ioctl(struct drm_device *dev, void *data, 653 struct drm_file *file_priv); 654 extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo, 655 uint32_t cur_validate_node); 656 extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo); 657 extern int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile, 658 uint32_t id, struct vmw_dma_buffer **out, 659 struct ttm_base_object **base); 660 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data, 661 struct drm_file *file_priv); 662 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data, 663 struct drm_file *file_priv); 664 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv, 665 struct ttm_object_file *tfile, 666 uint32_t *inout_id, 667 struct vmw_resource **out); 668 extern void vmw_resource_unreserve(struct vmw_resource *res, 669 bool switch_backup, 670 struct vmw_dma_buffer *new_backup, 671 unsigned long new_backup_offset); 672 extern void vmw_resource_move_notify(struct ttm_buffer_object *bo, 673 struct ttm_mem_reg *mem); 674 extern void vmw_query_move_notify(struct ttm_buffer_object *bo, 675 struct ttm_mem_reg *mem); 676 extern int vmw_query_readback_all(struct vmw_dma_buffer *dx_query_mob); 677 extern void vmw_fence_single_bo(struct ttm_buffer_object *bo, 678 struct vmw_fence_obj *fence); 679 extern void vmw_resource_evict_all(struct vmw_private *dev_priv); 680 681 /** 682 * DMA buffer helper routines - vmwgfx_dmabuf.c 683 */ 684 extern int vmw_dmabuf_pin_in_placement(struct vmw_private *vmw_priv, 685 struct vmw_dma_buffer *bo, 686 struct ttm_placement *placement, 687 bool interruptible); 688 extern int vmw_dmabuf_pin_in_vram(struct vmw_private *dev_priv, 689 struct vmw_dma_buffer *buf, 690 bool interruptible); 691 extern int vmw_dmabuf_pin_in_vram_or_gmr(struct vmw_private *dev_priv, 692 struct vmw_dma_buffer *buf, 693 bool interruptible); 694 extern int vmw_dmabuf_pin_in_start_of_vram(struct vmw_private *vmw_priv, 695 struct vmw_dma_buffer *bo, 696 bool interruptible); 697 extern int vmw_dmabuf_unpin(struct vmw_private *vmw_priv, 698 struct vmw_dma_buffer *bo, 699 bool interruptible); 700 extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf, 701 SVGAGuestPtr *ptr); 702 extern void vmw_bo_pin_reserved(struct vmw_dma_buffer *bo, bool pin); 703 704 /** 705 * Misc Ioctl functionality - vmwgfx_ioctl.c 706 */ 707 708 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data, 709 struct drm_file *file_priv); 710 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data, 711 struct drm_file *file_priv); 712 extern int vmw_present_ioctl(struct drm_device *dev, void *data, 713 struct drm_file *file_priv); 714 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data, 715 struct drm_file *file_priv); 716 extern unsigned int vmw_fops_poll(struct file *filp, 717 struct poll_table_struct *wait); 718 extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer, 719 size_t count, loff_t *offset); 720 721 /** 722 * Fifo utilities - vmwgfx_fifo.c 723 */ 724 725 extern int vmw_fifo_init(struct vmw_private *dev_priv, 726 struct vmw_fifo_state *fifo); 727 extern void vmw_fifo_release(struct vmw_private *dev_priv, 728 struct vmw_fifo_state *fifo); 729 extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes); 730 extern void * 731 vmw_fifo_reserve_dx(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id); 732 extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes); 733 extern void vmw_fifo_commit_flush(struct vmw_private *dev_priv, uint32_t bytes); 734 extern int vmw_fifo_send_fence(struct vmw_private *dev_priv, 735 uint32_t *seqno); 736 extern void vmw_fifo_ping_host_locked(struct vmw_private *, uint32_t reason); 737 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason); 738 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv); 739 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv); 740 extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv, 741 uint32_t cid); 742 extern int vmw_fifo_flush(struct vmw_private *dev_priv, 743 bool interruptible); 744 745 /** 746 * TTM glue - vmwgfx_ttm_glue.c 747 */ 748 749 extern int vmw_ttm_global_init(struct vmw_private *dev_priv); 750 extern void vmw_ttm_global_release(struct vmw_private *dev_priv); 751 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma); 752 753 /** 754 * TTM buffer object driver - vmwgfx_buffer.c 755 */ 756 757 extern const size_t vmw_tt_size; 758 extern struct ttm_placement vmw_vram_placement; 759 extern struct ttm_placement vmw_vram_ne_placement; 760 extern struct ttm_placement vmw_vram_sys_placement; 761 extern struct ttm_placement vmw_vram_gmr_placement; 762 extern struct ttm_placement vmw_vram_gmr_ne_placement; 763 extern struct ttm_placement vmw_sys_placement; 764 extern struct ttm_placement vmw_sys_ne_placement; 765 extern struct ttm_placement vmw_evictable_placement; 766 extern struct ttm_placement vmw_srf_placement; 767 extern struct ttm_placement vmw_mob_placement; 768 extern struct ttm_placement vmw_mob_ne_placement; 769 extern struct ttm_bo_driver vmw_bo_driver; 770 extern int vmw_dma_quiescent(struct drm_device *dev); 771 extern int vmw_bo_map_dma(struct ttm_buffer_object *bo); 772 extern void vmw_bo_unmap_dma(struct ttm_buffer_object *bo); 773 extern const struct vmw_sg_table * 774 vmw_bo_sg_table(struct ttm_buffer_object *bo); 775 extern void vmw_piter_start(struct vmw_piter *viter, 776 const struct vmw_sg_table *vsgt, 777 unsigned long p_offs); 778 779 /** 780 * vmw_piter_next - Advance the iterator one page. 781 * 782 * @viter: Pointer to the iterator to advance. 783 * 784 * Returns false if past the list of pages, true otherwise. 785 */ 786 static inline bool vmw_piter_next(struct vmw_piter *viter) 787 { 788 return viter->next(viter); 789 } 790 791 /** 792 * vmw_piter_dma_addr - Return the DMA address of the current page. 793 * 794 * @viter: Pointer to the iterator 795 * 796 * Returns the DMA address of the page pointed to by @viter. 797 */ 798 static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter) 799 { 800 return viter->dma_address(viter); 801 } 802 803 /** 804 * vmw_piter_page - Return a pointer to the current page. 805 * 806 * @viter: Pointer to the iterator 807 * 808 * Returns the DMA address of the page pointed to by @viter. 809 */ 810 static inline struct page *vmw_piter_page(struct vmw_piter *viter) 811 { 812 return viter->page(viter); 813 } 814 815 /** 816 * Command submission - vmwgfx_execbuf.c 817 */ 818 819 extern int vmw_execbuf_ioctl(struct drm_device *dev, unsigned long data, 820 struct drm_file *file_priv, size_t size); 821 extern int vmw_execbuf_process(struct drm_file *file_priv, 822 struct vmw_private *dev_priv, 823 void __user *user_commands, 824 void *kernel_commands, 825 uint32_t command_size, 826 uint64_t throttle_us, 827 uint32_t dx_context_handle, 828 struct drm_vmw_fence_rep __user 829 *user_fence_rep, 830 struct vmw_fence_obj **out_fence, 831 uint32_t flags); 832 extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv, 833 struct vmw_fence_obj *fence); 834 extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv); 835 836 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv, 837 struct vmw_private *dev_priv, 838 struct vmw_fence_obj **p_fence, 839 uint32_t *p_handle); 840 extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv, 841 struct vmw_fpriv *vmw_fp, 842 int ret, 843 struct drm_vmw_fence_rep __user 844 *user_fence_rep, 845 struct vmw_fence_obj *fence, 846 uint32_t fence_handle, 847 int32_t out_fence_fd, 848 struct sync_file *sync_file); 849 extern int vmw_validate_single_buffer(struct vmw_private *dev_priv, 850 struct ttm_buffer_object *bo, 851 bool interruptible, 852 bool validate_as_mob); 853 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd); 854 855 /** 856 * IRQs and wating - vmwgfx_irq.c 857 */ 858 859 extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy, 860 uint32_t seqno, bool interruptible, 861 unsigned long timeout); 862 extern int vmw_irq_install(struct drm_device *dev, int irq); 863 extern void vmw_irq_uninstall(struct drm_device *dev); 864 extern bool vmw_seqno_passed(struct vmw_private *dev_priv, 865 uint32_t seqno); 866 extern int vmw_fallback_wait(struct vmw_private *dev_priv, 867 bool lazy, 868 bool fifo_idle, 869 uint32_t seqno, 870 bool interruptible, 871 unsigned long timeout); 872 extern void vmw_update_seqno(struct vmw_private *dev_priv, 873 struct vmw_fifo_state *fifo_state); 874 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv); 875 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv); 876 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv); 877 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv); 878 extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag, 879 int *waiter_count); 880 extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv, 881 u32 flag, int *waiter_count); 882 883 /** 884 * Rudimentary fence-like objects currently used only for throttling - 885 * vmwgfx_marker.c 886 */ 887 888 extern void vmw_marker_queue_init(struct vmw_marker_queue *queue); 889 extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue); 890 extern int vmw_marker_push(struct vmw_marker_queue *queue, 891 uint32_t seqno); 892 extern int vmw_marker_pull(struct vmw_marker_queue *queue, 893 uint32_t signaled_seqno); 894 extern int vmw_wait_lag(struct vmw_private *dev_priv, 895 struct vmw_marker_queue *queue, uint32_t us); 896 897 /** 898 * Kernel framebuffer - vmwgfx_fb.c 899 */ 900 901 int vmw_fb_init(struct vmw_private *vmw_priv); 902 int vmw_fb_close(struct vmw_private *dev_priv); 903 int vmw_fb_off(struct vmw_private *vmw_priv); 904 int vmw_fb_on(struct vmw_private *vmw_priv); 905 906 /** 907 * Kernel modesetting - vmwgfx_kms.c 908 */ 909 910 int vmw_kms_init(struct vmw_private *dev_priv); 911 int vmw_kms_close(struct vmw_private *dev_priv); 912 int vmw_kms_save_vga(struct vmw_private *vmw_priv); 913 int vmw_kms_restore_vga(struct vmw_private *vmw_priv); 914 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data, 915 struct drm_file *file_priv); 916 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv); 917 void vmw_kms_cursor_snoop(struct vmw_surface *srf, 918 struct ttm_object_file *tfile, 919 struct ttm_buffer_object *bo, 920 SVGA3dCmdHeader *header); 921 int vmw_kms_write_svga(struct vmw_private *vmw_priv, 922 unsigned width, unsigned height, unsigned pitch, 923 unsigned bpp, unsigned depth); 924 void vmw_kms_idle_workqueues(struct vmw_master *vmaster); 925 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv, 926 uint32_t pitch, 927 uint32_t height); 928 u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe); 929 int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe); 930 void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe); 931 int vmw_kms_present(struct vmw_private *dev_priv, 932 struct drm_file *file_priv, 933 struct vmw_framebuffer *vfb, 934 struct vmw_surface *surface, 935 uint32_t sid, int32_t destX, int32_t destY, 936 struct drm_vmw_rect *clips, 937 uint32_t num_clips); 938 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, 939 struct drm_file *file_priv); 940 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv); 941 942 int vmw_dumb_create(struct drm_file *file_priv, 943 struct drm_device *dev, 944 struct drm_mode_create_dumb *args); 945 946 int vmw_dumb_map_offset(struct drm_file *file_priv, 947 struct drm_device *dev, uint32_t handle, 948 uint64_t *offset); 949 int vmw_dumb_destroy(struct drm_file *file_priv, 950 struct drm_device *dev, 951 uint32_t handle); 952 extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible); 953 extern void vmw_resource_unpin(struct vmw_resource *res); 954 extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res); 955 956 /** 957 * Overlay control - vmwgfx_overlay.c 958 */ 959 960 int vmw_overlay_init(struct vmw_private *dev_priv); 961 int vmw_overlay_close(struct vmw_private *dev_priv); 962 int vmw_overlay_ioctl(struct drm_device *dev, void *data, 963 struct drm_file *file_priv); 964 int vmw_overlay_stop_all(struct vmw_private *dev_priv); 965 int vmw_overlay_resume_all(struct vmw_private *dev_priv); 966 int vmw_overlay_pause_all(struct vmw_private *dev_priv); 967 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out); 968 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id); 969 int vmw_overlay_num_overlays(struct vmw_private *dev_priv); 970 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv); 971 972 /** 973 * GMR Id manager 974 */ 975 976 extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func; 977 978 /** 979 * Prime - vmwgfx_prime.c 980 */ 981 982 extern const struct dma_buf_ops vmw_prime_dmabuf_ops; 983 extern int vmw_prime_fd_to_handle(struct drm_device *dev, 984 struct drm_file *file_priv, 985 int fd, u32 *handle); 986 extern int vmw_prime_handle_to_fd(struct drm_device *dev, 987 struct drm_file *file_priv, 988 uint32_t handle, uint32_t flags, 989 int *prime_fd); 990 991 /* 992 * MemoryOBject management - vmwgfx_mob.c 993 */ 994 struct vmw_mob; 995 extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob, 996 const struct vmw_sg_table *vsgt, 997 unsigned long num_data_pages, int32_t mob_id); 998 extern void vmw_mob_unbind(struct vmw_private *dev_priv, 999 struct vmw_mob *mob); 1000 extern void vmw_mob_destroy(struct vmw_mob *mob); 1001 extern struct vmw_mob *vmw_mob_create(unsigned long data_pages); 1002 extern int vmw_otables_setup(struct vmw_private *dev_priv); 1003 extern void vmw_otables_takedown(struct vmw_private *dev_priv); 1004 1005 /* 1006 * Context management - vmwgfx_context.c 1007 */ 1008 1009 extern const struct vmw_user_resource_conv *user_context_converter; 1010 1011 extern int vmw_context_check(struct vmw_private *dev_priv, 1012 struct ttm_object_file *tfile, 1013 int id, 1014 struct vmw_resource **p_res); 1015 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data, 1016 struct drm_file *file_priv); 1017 extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data, 1018 struct drm_file *file_priv); 1019 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data, 1020 struct drm_file *file_priv); 1021 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx); 1022 extern struct vmw_cmdbuf_res_manager * 1023 vmw_context_res_man(struct vmw_resource *ctx); 1024 extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx, 1025 SVGACOTableType cotable_type); 1026 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx); 1027 struct vmw_ctx_binding_state; 1028 extern struct vmw_ctx_binding_state * 1029 vmw_context_binding_state(struct vmw_resource *ctx); 1030 extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx, 1031 bool readback); 1032 extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res, 1033 struct vmw_dma_buffer *mob); 1034 extern struct vmw_dma_buffer * 1035 vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res); 1036 1037 1038 /* 1039 * Surface management - vmwgfx_surface.c 1040 */ 1041 1042 extern const struct vmw_user_resource_conv *user_surface_converter; 1043 1044 extern void vmw_surface_res_free(struct vmw_resource *res); 1045 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data, 1046 struct drm_file *file_priv); 1047 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data, 1048 struct drm_file *file_priv); 1049 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, 1050 struct drm_file *file_priv); 1051 extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data, 1052 struct drm_file *file_priv); 1053 extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data, 1054 struct drm_file *file_priv); 1055 extern int vmw_surface_check(struct vmw_private *dev_priv, 1056 struct ttm_object_file *tfile, 1057 uint32_t handle, int *id); 1058 extern int vmw_surface_validate(struct vmw_private *dev_priv, 1059 struct vmw_surface *srf); 1060 int vmw_surface_gb_priv_define(struct drm_device *dev, 1061 uint32_t user_accounting_size, 1062 uint32_t svga3d_flags, 1063 SVGA3dSurfaceFormat format, 1064 bool for_scanout, 1065 uint32_t num_mip_levels, 1066 uint32_t multisample_count, 1067 uint32_t array_size, 1068 struct drm_vmw_size size, 1069 struct vmw_surface **srf_out); 1070 1071 /* 1072 * Shader management - vmwgfx_shader.c 1073 */ 1074 1075 extern const struct vmw_user_resource_conv *user_shader_converter; 1076 1077 extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data, 1078 struct drm_file *file_priv); 1079 extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data, 1080 struct drm_file *file_priv); 1081 extern int vmw_compat_shader_add(struct vmw_private *dev_priv, 1082 struct vmw_cmdbuf_res_manager *man, 1083 u32 user_key, const void *bytecode, 1084 SVGA3dShaderType shader_type, 1085 size_t size, 1086 struct list_head *list); 1087 extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man, 1088 u32 user_key, SVGA3dShaderType shader_type, 1089 struct list_head *list); 1090 extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man, 1091 struct vmw_resource *ctx, 1092 u32 user_key, 1093 SVGA3dShaderType shader_type, 1094 struct list_head *list); 1095 extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv, 1096 struct list_head *list, 1097 bool readback); 1098 1099 extern struct vmw_resource * 1100 vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man, 1101 u32 user_key, SVGA3dShaderType shader_type); 1102 1103 /* 1104 * Command buffer managed resources - vmwgfx_cmdbuf_res.c 1105 */ 1106 1107 extern struct vmw_cmdbuf_res_manager * 1108 vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv); 1109 extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man); 1110 extern size_t vmw_cmdbuf_res_man_size(void); 1111 extern struct vmw_resource * 1112 vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man, 1113 enum vmw_cmdbuf_res_type res_type, 1114 u32 user_key); 1115 extern void vmw_cmdbuf_res_revert(struct list_head *list); 1116 extern void vmw_cmdbuf_res_commit(struct list_head *list); 1117 extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man, 1118 enum vmw_cmdbuf_res_type res_type, 1119 u32 user_key, 1120 struct vmw_resource *res, 1121 struct list_head *list); 1122 extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man, 1123 enum vmw_cmdbuf_res_type res_type, 1124 u32 user_key, 1125 struct list_head *list, 1126 struct vmw_resource **res); 1127 1128 /* 1129 * COTable management - vmwgfx_cotable.c 1130 */ 1131 extern const SVGACOTableType vmw_cotable_scrub_order[]; 1132 extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv, 1133 struct vmw_resource *ctx, 1134 u32 type); 1135 extern int vmw_cotable_notify(struct vmw_resource *res, int id); 1136 extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback); 1137 extern void vmw_cotable_add_resource(struct vmw_resource *ctx, 1138 struct list_head *head); 1139 1140 /* 1141 * Command buffer managerment vmwgfx_cmdbuf.c 1142 */ 1143 struct vmw_cmdbuf_man; 1144 struct vmw_cmdbuf_header; 1145 1146 extern struct vmw_cmdbuf_man * 1147 vmw_cmdbuf_man_create(struct vmw_private *dev_priv); 1148 extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man, 1149 size_t size, size_t default_size); 1150 extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man); 1151 extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man); 1152 extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible, 1153 unsigned long timeout); 1154 extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size, 1155 int ctx_id, bool interruptible, 1156 struct vmw_cmdbuf_header *header); 1157 extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size, 1158 struct vmw_cmdbuf_header *header, 1159 bool flush); 1160 extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man, 1161 size_t size, bool interruptible, 1162 struct vmw_cmdbuf_header **p_header); 1163 extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header); 1164 extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man, 1165 bool interruptible); 1166 extern void vmw_cmdbuf_irqthread(struct vmw_cmdbuf_man *man); 1167 1168 1169 /** 1170 * Inline helper functions 1171 */ 1172 1173 static inline void vmw_surface_unreference(struct vmw_surface **srf) 1174 { 1175 struct vmw_surface *tmp_srf = *srf; 1176 struct vmw_resource *res = &tmp_srf->res; 1177 *srf = NULL; 1178 1179 vmw_resource_unreference(&res); 1180 } 1181 1182 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf) 1183 { 1184 (void) vmw_resource_reference(&srf->res); 1185 return srf; 1186 } 1187 1188 static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf) 1189 { 1190 struct vmw_dma_buffer *tmp_buf = *buf; 1191 1192 *buf = NULL; 1193 if (tmp_buf != NULL) { 1194 struct ttm_buffer_object *bo = &tmp_buf->base; 1195 1196 ttm_bo_unref(&bo); 1197 } 1198 } 1199 1200 static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf) 1201 { 1202 if (ttm_bo_reference(&buf->base)) 1203 return buf; 1204 return NULL; 1205 } 1206 1207 static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv) 1208 { 1209 return (struct ttm_mem_global *) dev_priv->mem_global_ref.object; 1210 } 1211 1212 static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv) 1213 { 1214 atomic_inc(&dev_priv->num_fifo_resources); 1215 } 1216 1217 static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv) 1218 { 1219 atomic_dec(&dev_priv->num_fifo_resources); 1220 } 1221 1222 /** 1223 * vmw_mmio_read - Perform a MMIO read from volatile memory 1224 * 1225 * @addr: The address to read from 1226 * 1227 * This function is intended to be equivalent to ioread32() on 1228 * memremap'd memory, but without byteswapping. 1229 */ 1230 static inline u32 vmw_mmio_read(u32 *addr) 1231 { 1232 return READ_ONCE(*addr); 1233 } 1234 1235 /** 1236 * vmw_mmio_write - Perform a MMIO write to volatile memory 1237 * 1238 * @addr: The address to write to 1239 * 1240 * This function is intended to be equivalent to iowrite32 on 1241 * memremap'd memory, but without byteswapping. 1242 */ 1243 static inline void vmw_mmio_write(u32 value, u32 *addr) 1244 { 1245 WRITE_ONCE(*addr, value); 1246 } 1247 1248 /** 1249 * Add vmw_msg module function 1250 */ 1251 extern int vmw_host_log(const char *log); 1252 1253 #endif 1254