vmwgfx_drv.h revision 1.1.1.2.28.1
1 /* $NetBSD: vmwgfx_drv.h,v 1.1.1.2.28.1 2018/09/06 06:56:34 pgoyette Exp $ */ 2 3 /************************************************************************** 4 * 5 * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA 6 * All Rights Reserved. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a 9 * copy of this software and associated documentation files (the 10 * "Software"), to deal in the Software without restriction, including 11 * without limitation the rights to use, copy, modify, merge, publish, 12 * distribute, sub license, and/or sell copies of the Software, and to 13 * permit persons to whom the Software is furnished to do so, subject to 14 * the following conditions: 15 * 16 * The above copyright notice and this permission notice (including the 17 * next paragraph) shall be included in all copies or substantial portions 18 * of the Software. 19 * 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 23 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, 24 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 25 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 26 * USE OR OTHER DEALINGS IN THE SOFTWARE. 27 * 28 **************************************************************************/ 29 30 #ifndef _VMWGFX_DRV_H_ 31 #define _VMWGFX_DRV_H_ 32 33 #include "vmwgfx_reg.h" 34 #include <drm/drmP.h> 35 #include <drm/vmwgfx_drm.h> 36 #include <drm/drm_hashtab.h> 37 #include <linux/suspend.h> 38 #include <drm/ttm/ttm_bo_driver.h> 39 #include <drm/ttm/ttm_object.h> 40 #include <drm/ttm/ttm_lock.h> 41 #include <drm/ttm/ttm_execbuf_util.h> 42 #include <drm/ttm/ttm_module.h> 43 #include "vmwgfx_fence.h" 44 45 #define VMWGFX_DRIVER_DATE "20150810" 46 #define VMWGFX_DRIVER_MAJOR 2 47 #define VMWGFX_DRIVER_MINOR 9 48 #define VMWGFX_DRIVER_PATCHLEVEL 0 49 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000 50 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024) 51 #define VMWGFX_MAX_RELOCATIONS 2048 52 #define VMWGFX_MAX_VALIDATIONS 2048 53 #define VMWGFX_MAX_DISPLAYS 16 54 #define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768 55 #define VMWGFX_ENABLE_SCREEN_TARGET_OTABLE 1 56 57 /* 58 * Perhaps we should have sysfs entries for these. 59 */ 60 #define VMWGFX_NUM_GB_CONTEXT 256 61 #define VMWGFX_NUM_GB_SHADER 20000 62 #define VMWGFX_NUM_GB_SURFACE 32768 63 #define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS 64 #define VMWGFX_NUM_DXCONTEXT 256 65 #define VMWGFX_NUM_DXQUERY 512 66 #define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\ 67 VMWGFX_NUM_GB_SHADER +\ 68 VMWGFX_NUM_GB_SURFACE +\ 69 VMWGFX_NUM_GB_SCREEN_TARGET) 70 71 #define VMW_PL_GMR TTM_PL_PRIV0 72 #define VMW_PL_FLAG_GMR TTM_PL_FLAG_PRIV0 73 #define VMW_PL_MOB TTM_PL_PRIV1 74 #define VMW_PL_FLAG_MOB TTM_PL_FLAG_PRIV1 75 76 #define VMW_RES_CONTEXT ttm_driver_type0 77 #define VMW_RES_SURFACE ttm_driver_type1 78 #define VMW_RES_STREAM ttm_driver_type2 79 #define VMW_RES_FENCE ttm_driver_type3 80 #define VMW_RES_SHADER ttm_driver_type4 81 82 struct vmw_fpriv { 83 struct drm_master *locked_master; 84 struct ttm_object_file *tfile; 85 struct list_head fence_events; 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 struct drm_crtc *crtc; 159 size_t age; 160 uint32_t *image; 161 }; 162 163 struct vmw_framebuffer; 164 struct vmw_surface_offset; 165 166 struct vmw_surface { 167 struct vmw_resource res; 168 uint32_t flags; 169 uint32_t format; 170 uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES]; 171 struct drm_vmw_size base_size; 172 struct drm_vmw_size *sizes; 173 uint32_t num_sizes; 174 bool scanout; 175 uint32_t array_size; 176 /* TODO so far just a extra pointer */ 177 struct vmw_cursor_snooper snooper; 178 struct vmw_surface_offset *offsets; 179 SVGA3dTextureFilter autogen_filter; 180 uint32_t multisample_count; 181 struct list_head view_list; 182 }; 183 184 struct vmw_marker_queue { 185 struct list_head head; 186 u64 lag; 187 u64 lag_time; 188 spinlock_t lock; 189 }; 190 191 struct vmw_fifo_state { 192 unsigned long reserved_size; 193 u32 *dynamic_buffer; 194 u32 *static_buffer; 195 unsigned long static_buffer_size; 196 bool using_bounce_buffer; 197 uint32_t capabilities; 198 struct mutex fifo_mutex; 199 struct rw_semaphore rwsem; 200 struct vmw_marker_queue marker_queue; 201 bool dx; 202 }; 203 204 struct vmw_relocation { 205 SVGAMobId *mob_loc; 206 SVGAGuestPtr *location; 207 uint32_t index; 208 }; 209 210 /** 211 * struct vmw_res_cache_entry - resource information cache entry 212 * 213 * @valid: Whether the entry is valid, which also implies that the execbuf 214 * code holds a reference to the resource, and it's placed on the 215 * validation list. 216 * @handle: User-space handle of a resource. 217 * @res: Non-ref-counted pointer to the resource. 218 * 219 * Used to avoid frequent repeated user-space handle lookups of the 220 * same resource. 221 */ 222 struct vmw_res_cache_entry { 223 bool valid; 224 uint32_t handle; 225 struct vmw_resource *res; 226 struct vmw_resource_val_node *node; 227 }; 228 229 /** 230 * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings. 231 */ 232 enum vmw_dma_map_mode { 233 vmw_dma_phys, /* Use physical page addresses */ 234 vmw_dma_alloc_coherent, /* Use TTM coherent pages */ 235 vmw_dma_map_populate, /* Unmap from DMA just after unpopulate */ 236 vmw_dma_map_bind, /* Unmap from DMA just before unbind */ 237 vmw_dma_map_max 238 }; 239 240 /** 241 * struct vmw_sg_table - Scatter/gather table for binding, with additional 242 * device-specific information. 243 * 244 * @sgt: Pointer to a struct sg_table with binding information 245 * @num_regions: Number of regions with device-address contiguous pages 246 */ 247 struct vmw_sg_table { 248 enum vmw_dma_map_mode mode; 249 struct page **pages; 250 const dma_addr_t *addrs; 251 struct sg_table *sgt; 252 unsigned long num_regions; 253 unsigned long num_pages; 254 }; 255 256 /** 257 * struct vmw_piter - Page iterator that iterates over a list of pages 258 * and DMA addresses that could be either a scatter-gather list or 259 * arrays 260 * 261 * @pages: Array of page pointers to the pages. 262 * @addrs: DMA addresses to the pages if coherent pages are used. 263 * @iter: Scatter-gather page iterator. Current position in SG list. 264 * @i: Current position in arrays. 265 * @num_pages: Number of pages total. 266 * @next: Function to advance the iterator. Returns false if past the list 267 * of pages, true otherwise. 268 * @dma_address: Function to return the DMA address of the current page. 269 */ 270 struct vmw_piter { 271 struct page **pages; 272 const dma_addr_t *addrs; 273 struct sg_page_iter iter; 274 unsigned long i; 275 unsigned long num_pages; 276 bool (*next)(struct vmw_piter *); 277 dma_addr_t (*dma_address)(struct vmw_piter *); 278 struct page *(*page)(struct vmw_piter *); 279 }; 280 281 /* 282 * enum vmw_display_unit_type - Describes the display unit 283 */ 284 enum vmw_display_unit_type { 285 vmw_du_invalid = 0, 286 vmw_du_legacy, 287 vmw_du_screen_object, 288 vmw_du_screen_target 289 }; 290 291 292 struct vmw_sw_context{ 293 struct drm_open_hash res_ht; 294 bool res_ht_initialized; 295 bool kernel; /**< is the called made from the kernel */ 296 struct vmw_fpriv *fp; 297 struct list_head validate_nodes; 298 struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS]; 299 uint32_t cur_reloc; 300 struct vmw_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS]; 301 uint32_t cur_val_buf; 302 uint32_t *cmd_bounce; 303 uint32_t cmd_bounce_size; 304 struct list_head resource_list; 305 struct list_head ctx_resource_list; /* For contexts and cotables */ 306 struct vmw_dma_buffer *cur_query_bo; 307 struct list_head res_relocations; 308 uint32_t *buf_start; 309 struct vmw_res_cache_entry res_cache[vmw_res_max]; 310 struct vmw_resource *last_query_ctx; 311 bool needs_post_query_barrier; 312 struct vmw_resource *error_resource; 313 struct vmw_ctx_binding_state *staged_bindings; 314 bool staged_bindings_inuse; 315 struct list_head staged_cmd_res; 316 struct vmw_resource_val_node *dx_ctx_node; 317 struct vmw_dma_buffer *dx_query_mob; 318 struct vmw_resource *dx_query_ctx; 319 struct vmw_cmdbuf_res_manager *man; 320 }; 321 322 struct vmw_legacy_display; 323 struct vmw_overlay; 324 325 struct vmw_master { 326 struct ttm_lock lock; 327 }; 328 329 struct vmw_vga_topology_state { 330 uint32_t width; 331 uint32_t height; 332 uint32_t primary; 333 uint32_t pos_x; 334 uint32_t pos_y; 335 }; 336 337 338 /* 339 * struct vmw_otable - Guest Memory OBject table metadata 340 * 341 * @size: Size of the table (page-aligned). 342 * @page_table: Pointer to a struct vmw_mob holding the page table. 343 */ 344 struct vmw_otable { 345 unsigned long size; 346 struct vmw_mob *page_table; 347 bool enabled; 348 }; 349 350 struct vmw_otable_batch { 351 unsigned num_otables; 352 struct vmw_otable *otables; 353 struct vmw_resource *context; 354 struct ttm_buffer_object *otable_bo; 355 }; 356 357 struct vmw_private { 358 struct ttm_bo_device bdev; 359 struct ttm_bo_global_ref bo_global_ref; 360 struct drm_global_reference mem_global_ref; 361 362 struct vmw_fifo_state fifo; 363 364 struct drm_device *dev; 365 unsigned long vmw_chipset; 366 unsigned int io_start; 367 uint32_t vram_start; 368 uint32_t vram_size; 369 uint32_t prim_bb_mem; 370 uint32_t mmio_start; 371 uint32_t mmio_size; 372 uint32_t fb_max_width; 373 uint32_t fb_max_height; 374 uint32_t texture_max_width; 375 uint32_t texture_max_height; 376 uint32_t stdu_max_width; 377 uint32_t stdu_max_height; 378 uint32_t initial_width; 379 uint32_t initial_height; 380 u32 *mmio_virt; 381 uint32_t capabilities; 382 uint32_t max_gmr_ids; 383 uint32_t max_gmr_pages; 384 uint32_t max_mob_pages; 385 uint32_t max_mob_size; 386 uint32_t memory_size; 387 bool has_gmr; 388 bool has_mob; 389 spinlock_t hw_lock; 390 spinlock_t cap_lock; 391 bool has_dx; 392 bool assume_16bpp; 393 394 /* 395 * VGA registers. 396 */ 397 398 struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS]; 399 uint32_t vga_width; 400 uint32_t vga_height; 401 uint32_t vga_bpp; 402 uint32_t vga_bpl; 403 uint32_t vga_pitchlock; 404 405 uint32_t num_displays; 406 407 /* 408 * Framebuffer info. 409 */ 410 411 void *fb_info; 412 enum vmw_display_unit_type active_display_unit; 413 struct vmw_legacy_display *ldu_priv; 414 struct vmw_screen_object_display *sou_priv; 415 struct vmw_overlay *overlay_priv; 416 417 /* 418 * Context and surface management. 419 */ 420 421 rwlock_t resource_lock; 422 struct idr res_idr[vmw_res_max]; 423 /* 424 * Block lastclose from racing with firstopen. 425 */ 426 427 struct mutex init_mutex; 428 429 /* 430 * A resource manager for kernel-only surfaces and 431 * contexts. 432 */ 433 434 struct ttm_object_device *tdev; 435 436 /* 437 * Fencing and IRQs. 438 */ 439 440 atomic_t marker_seq; 441 wait_queue_head_t fence_queue; 442 wait_queue_head_t fifo_queue; 443 spinlock_t waiter_lock; 444 int fence_queue_waiters; /* Protected by waiter_lock */ 445 int goal_queue_waiters; /* Protected by waiter_lock */ 446 int cmdbuf_waiters; /* Protected by waiter_lock */ 447 int error_waiters; /* Protected by waiter_lock */ 448 int fifo_queue_waiters; /* Protected by waiter_lock */ 449 uint32_t last_read_seqno; 450 struct vmw_fence_manager *fman; 451 uint32_t irq_mask; /* Updates protected by waiter_lock */ 452 453 /* 454 * Device state 455 */ 456 457 uint32_t traces_state; 458 uint32_t enable_state; 459 uint32_t config_done_state; 460 461 /** 462 * Execbuf 463 */ 464 /** 465 * Protected by the cmdbuf mutex. 466 */ 467 468 struct vmw_sw_context ctx; 469 struct mutex cmdbuf_mutex; 470 struct mutex binding_mutex; 471 472 /** 473 * Operating mode. 474 */ 475 476 bool stealth; 477 bool enable_fb; 478 spinlock_t svga_lock; 479 480 /** 481 * Master management. 482 */ 483 484 struct vmw_master *active_master; 485 struct vmw_master fbdev_master; 486 struct notifier_block pm_nb; 487 bool suspended; 488 bool refuse_hibernation; 489 490 struct mutex release_mutex; 491 atomic_t num_fifo_resources; 492 493 /* 494 * Replace this with an rwsem as soon as we have down_xx_interruptible() 495 */ 496 struct ttm_lock reservation_sem; 497 498 /* 499 * Query processing. These members 500 * are protected by the cmdbuf mutex. 501 */ 502 503 struct vmw_dma_buffer *dummy_query_bo; 504 struct vmw_dma_buffer *pinned_bo; 505 uint32_t query_cid; 506 uint32_t query_cid_valid; 507 bool dummy_query_bo_pinned; 508 509 /* 510 * Surface swapping. The "surface_lru" list is protected by the 511 * resource lock in order to be able to destroy a surface and take 512 * it off the lru atomically. "used_memory_size" is currently 513 * protected by the cmdbuf mutex for simplicity. 514 */ 515 516 struct list_head res_lru[vmw_res_max]; 517 uint32_t used_memory_size; 518 519 /* 520 * DMA mapping stuff. 521 */ 522 enum vmw_dma_map_mode map_mode; 523 524 /* 525 * Guest Backed stuff 526 */ 527 struct vmw_otable_batch otable_batch; 528 529 struct vmw_cmdbuf_man *cman; 530 }; 531 532 static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res) 533 { 534 return container_of(res, struct vmw_surface, res); 535 } 536 537 static inline struct vmw_private *vmw_priv(struct drm_device *dev) 538 { 539 return (struct vmw_private *)dev->dev_private; 540 } 541 542 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv) 543 { 544 return (struct vmw_fpriv *)file_priv->driver_priv; 545 } 546 547 static inline struct vmw_master *vmw_master(struct drm_master *master) 548 { 549 return (struct vmw_master *) master->driver_priv; 550 } 551 552 /* 553 * The locking here is fine-grained, so that it is performed once 554 * for every read- and write operation. This is of course costly, but we 555 * don't perform much register access in the timing critical paths anyway. 556 * Instead we have the extra benefit of being sure that we don't forget 557 * the hw lock around register accesses. 558 */ 559 static inline void vmw_write(struct vmw_private *dev_priv, 560 unsigned int offset, uint32_t value) 561 { 562 unsigned long irq_flags; 563 564 spin_lock_irqsave(&dev_priv->hw_lock, irq_flags); 565 outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT); 566 outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT); 567 spin_unlock_irqrestore(&dev_priv->hw_lock, irq_flags); 568 } 569 570 static inline uint32_t vmw_read(struct vmw_private *dev_priv, 571 unsigned int offset) 572 { 573 unsigned long irq_flags; 574 u32 val; 575 576 spin_lock_irqsave(&dev_priv->hw_lock, irq_flags); 577 outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT); 578 val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT); 579 spin_unlock_irqrestore(&dev_priv->hw_lock, irq_flags); 580 581 return val; 582 } 583 584 extern void vmw_svga_enable(struct vmw_private *dev_priv); 585 extern void vmw_svga_disable(struct vmw_private *dev_priv); 586 587 588 /** 589 * GMR utilities - vmwgfx_gmr.c 590 */ 591 592 extern int vmw_gmr_bind(struct vmw_private *dev_priv, 593 const struct vmw_sg_table *vsgt, 594 unsigned long num_pages, 595 int gmr_id); 596 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id); 597 598 /** 599 * Resource utilities - vmwgfx_resource.c 600 */ 601 struct vmw_user_resource_conv; 602 603 extern void vmw_resource_unreference(struct vmw_resource **p_res); 604 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res); 605 extern struct vmw_resource * 606 vmw_resource_reference_unless_doomed(struct vmw_resource *res); 607 extern int vmw_resource_validate(struct vmw_resource *res); 608 extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible, 609 bool no_backup); 610 extern bool vmw_resource_needs_backup(const struct vmw_resource *res); 611 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv, 612 struct ttm_object_file *tfile, 613 uint32_t handle, 614 struct vmw_surface **out_surf, 615 struct vmw_dma_buffer **out_buf); 616 extern int vmw_user_resource_lookup_handle( 617 struct vmw_private *dev_priv, 618 struct ttm_object_file *tfile, 619 uint32_t handle, 620 const struct vmw_user_resource_conv *converter, 621 struct vmw_resource **p_res); 622 extern void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo); 623 extern int vmw_dmabuf_init(struct vmw_private *dev_priv, 624 struct vmw_dma_buffer *vmw_bo, 625 size_t size, struct ttm_placement *placement, 626 bool interuptable, 627 void (*bo_free) (struct ttm_buffer_object *bo)); 628 extern int vmw_user_dmabuf_verify_access(struct ttm_buffer_object *bo, 629 struct ttm_object_file *tfile); 630 extern int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv, 631 struct ttm_object_file *tfile, 632 uint32_t size, 633 bool shareable, 634 uint32_t *handle, 635 struct vmw_dma_buffer **p_dma_buf, 636 struct ttm_base_object **p_base); 637 extern int vmw_user_dmabuf_reference(struct ttm_object_file *tfile, 638 struct vmw_dma_buffer *dma_buf, 639 uint32_t *handle); 640 extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data, 641 struct drm_file *file_priv); 642 extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data, 643 struct drm_file *file_priv); 644 extern int vmw_user_dmabuf_synccpu_ioctl(struct drm_device *dev, void *data, 645 struct drm_file *file_priv); 646 extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo, 647 uint32_t cur_validate_node); 648 extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo); 649 extern int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile, 650 uint32_t id, struct vmw_dma_buffer **out, 651 struct ttm_base_object **base); 652 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data, 653 struct drm_file *file_priv); 654 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data, 655 struct drm_file *file_priv); 656 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv, 657 struct ttm_object_file *tfile, 658 uint32_t *inout_id, 659 struct vmw_resource **out); 660 extern void vmw_resource_unreserve(struct vmw_resource *res, 661 bool switch_backup, 662 struct vmw_dma_buffer *new_backup, 663 unsigned long new_backup_offset); 664 extern void vmw_resource_move_notify(struct ttm_buffer_object *bo, 665 struct ttm_mem_reg *mem); 666 extern void vmw_query_move_notify(struct ttm_buffer_object *bo, 667 struct ttm_mem_reg *mem); 668 extern int vmw_query_readback_all(struct vmw_dma_buffer *dx_query_mob); 669 extern void vmw_fence_single_bo(struct ttm_buffer_object *bo, 670 struct vmw_fence_obj *fence); 671 extern void vmw_resource_evict_all(struct vmw_private *dev_priv); 672 673 /** 674 * DMA buffer helper routines - vmwgfx_dmabuf.c 675 */ 676 extern int vmw_dmabuf_pin_in_placement(struct vmw_private *vmw_priv, 677 struct vmw_dma_buffer *bo, 678 struct ttm_placement *placement, 679 bool interruptible); 680 extern int vmw_dmabuf_pin_in_vram(struct vmw_private *dev_priv, 681 struct vmw_dma_buffer *buf, 682 bool interruptible); 683 extern int vmw_dmabuf_pin_in_vram_or_gmr(struct vmw_private *dev_priv, 684 struct vmw_dma_buffer *buf, 685 bool interruptible); 686 extern int vmw_dmabuf_pin_in_start_of_vram(struct vmw_private *vmw_priv, 687 struct vmw_dma_buffer *bo, 688 bool interruptible); 689 extern int vmw_dmabuf_unpin(struct vmw_private *vmw_priv, 690 struct vmw_dma_buffer *bo, 691 bool interruptible); 692 extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf, 693 SVGAGuestPtr *ptr); 694 extern void vmw_bo_pin_reserved(struct vmw_dma_buffer *bo, bool pin); 695 696 /** 697 * Misc Ioctl functionality - vmwgfx_ioctl.c 698 */ 699 700 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data, 701 struct drm_file *file_priv); 702 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data, 703 struct drm_file *file_priv); 704 extern int vmw_present_ioctl(struct drm_device *dev, void *data, 705 struct drm_file *file_priv); 706 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data, 707 struct drm_file *file_priv); 708 extern unsigned int vmw_fops_poll(struct file *filp, 709 struct poll_table_struct *wait); 710 extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer, 711 size_t count, loff_t *offset); 712 713 /** 714 * Fifo utilities - vmwgfx_fifo.c 715 */ 716 717 extern int vmw_fifo_init(struct vmw_private *dev_priv, 718 struct vmw_fifo_state *fifo); 719 extern void vmw_fifo_release(struct vmw_private *dev_priv, 720 struct vmw_fifo_state *fifo); 721 extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes); 722 extern void * 723 vmw_fifo_reserve_dx(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id); 724 extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes); 725 extern void vmw_fifo_commit_flush(struct vmw_private *dev_priv, uint32_t bytes); 726 extern int vmw_fifo_send_fence(struct vmw_private *dev_priv, 727 uint32_t *seqno); 728 extern void vmw_fifo_ping_host_locked(struct vmw_private *, uint32_t reason); 729 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason); 730 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv); 731 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv); 732 extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv, 733 uint32_t cid); 734 extern int vmw_fifo_flush(struct vmw_private *dev_priv, 735 bool interruptible); 736 737 /** 738 * TTM glue - vmwgfx_ttm_glue.c 739 */ 740 741 extern int vmw_ttm_global_init(struct vmw_private *dev_priv); 742 extern void vmw_ttm_global_release(struct vmw_private *dev_priv); 743 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma); 744 745 /** 746 * TTM buffer object driver - vmwgfx_buffer.c 747 */ 748 749 extern const size_t vmw_tt_size; 750 extern struct ttm_placement vmw_vram_placement; 751 extern struct ttm_placement vmw_vram_ne_placement; 752 extern struct ttm_placement vmw_vram_sys_placement; 753 extern struct ttm_placement vmw_vram_gmr_placement; 754 extern struct ttm_placement vmw_vram_gmr_ne_placement; 755 extern struct ttm_placement vmw_sys_placement; 756 extern struct ttm_placement vmw_sys_ne_placement; 757 extern struct ttm_placement vmw_evictable_placement; 758 extern struct ttm_placement vmw_srf_placement; 759 extern struct ttm_placement vmw_mob_placement; 760 extern struct ttm_placement vmw_mob_ne_placement; 761 extern struct ttm_bo_driver vmw_bo_driver; 762 extern int vmw_dma_quiescent(struct drm_device *dev); 763 extern int vmw_bo_map_dma(struct ttm_buffer_object *bo); 764 extern void vmw_bo_unmap_dma(struct ttm_buffer_object *bo); 765 extern const struct vmw_sg_table * 766 vmw_bo_sg_table(struct ttm_buffer_object *bo); 767 extern void vmw_piter_start(struct vmw_piter *viter, 768 const struct vmw_sg_table *vsgt, 769 unsigned long p_offs); 770 771 /** 772 * vmw_piter_next - Advance the iterator one page. 773 * 774 * @viter: Pointer to the iterator to advance. 775 * 776 * Returns false if past the list of pages, true otherwise. 777 */ 778 static inline bool vmw_piter_next(struct vmw_piter *viter) 779 { 780 return viter->next(viter); 781 } 782 783 /** 784 * vmw_piter_dma_addr - Return the DMA address of the current page. 785 * 786 * @viter: Pointer to the iterator 787 * 788 * Returns the DMA address of the page pointed to by @viter. 789 */ 790 static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter) 791 { 792 return viter->dma_address(viter); 793 } 794 795 /** 796 * vmw_piter_page - Return a pointer to the current page. 797 * 798 * @viter: Pointer to the iterator 799 * 800 * Returns the DMA address of the page pointed to by @viter. 801 */ 802 static inline struct page *vmw_piter_page(struct vmw_piter *viter) 803 { 804 return viter->page(viter); 805 } 806 807 /** 808 * Command submission - vmwgfx_execbuf.c 809 */ 810 811 extern int vmw_execbuf_ioctl(struct drm_device *dev, unsigned long data, 812 struct drm_file *file_priv, size_t size); 813 extern int vmw_execbuf_process(struct drm_file *file_priv, 814 struct vmw_private *dev_priv, 815 void __user *user_commands, 816 void *kernel_commands, 817 uint32_t command_size, 818 uint64_t throttle_us, 819 uint32_t dx_context_handle, 820 struct drm_vmw_fence_rep __user 821 *user_fence_rep, 822 struct vmw_fence_obj **out_fence); 823 extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv, 824 struct vmw_fence_obj *fence); 825 extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv); 826 827 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv, 828 struct vmw_private *dev_priv, 829 struct vmw_fence_obj **p_fence, 830 uint32_t *p_handle); 831 extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv, 832 struct vmw_fpriv *vmw_fp, 833 int ret, 834 struct drm_vmw_fence_rep __user 835 *user_fence_rep, 836 struct vmw_fence_obj *fence, 837 uint32_t fence_handle); 838 extern int vmw_validate_single_buffer(struct vmw_private *dev_priv, 839 struct ttm_buffer_object *bo, 840 bool interruptible, 841 bool validate_as_mob); 842 843 844 /** 845 * IRQs and wating - vmwgfx_irq.c 846 */ 847 848 extern irqreturn_t vmw_irq_handler(int irq, void *arg); 849 extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy, 850 uint32_t seqno, bool interruptible, 851 unsigned long timeout); 852 extern void vmw_irq_preinstall(struct drm_device *dev); 853 extern int vmw_irq_postinstall(struct drm_device *dev); 854 extern void vmw_irq_uninstall(struct drm_device *dev); 855 extern bool vmw_seqno_passed(struct vmw_private *dev_priv, 856 uint32_t seqno); 857 extern int vmw_fallback_wait(struct vmw_private *dev_priv, 858 bool lazy, 859 bool fifo_idle, 860 uint32_t seqno, 861 bool interruptible, 862 unsigned long timeout); 863 extern void vmw_update_seqno(struct vmw_private *dev_priv, 864 struct vmw_fifo_state *fifo_state); 865 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv); 866 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv); 867 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv); 868 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv); 869 extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag, 870 int *waiter_count); 871 extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv, 872 u32 flag, int *waiter_count); 873 874 /** 875 * Rudimentary fence-like objects currently used only for throttling - 876 * vmwgfx_marker.c 877 */ 878 879 extern void vmw_marker_queue_init(struct vmw_marker_queue *queue); 880 extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue); 881 extern int vmw_marker_push(struct vmw_marker_queue *queue, 882 uint32_t seqno); 883 extern int vmw_marker_pull(struct vmw_marker_queue *queue, 884 uint32_t signaled_seqno); 885 extern int vmw_wait_lag(struct vmw_private *dev_priv, 886 struct vmw_marker_queue *queue, uint32_t us); 887 888 /** 889 * Kernel framebuffer - vmwgfx_fb.c 890 */ 891 892 int vmw_fb_init(struct vmw_private *vmw_priv); 893 int vmw_fb_close(struct vmw_private *dev_priv); 894 int vmw_fb_off(struct vmw_private *vmw_priv); 895 int vmw_fb_on(struct vmw_private *vmw_priv); 896 897 /** 898 * Kernel modesetting - vmwgfx_kms.c 899 */ 900 901 int vmw_kms_init(struct vmw_private *dev_priv); 902 int vmw_kms_close(struct vmw_private *dev_priv); 903 int vmw_kms_save_vga(struct vmw_private *vmw_priv); 904 int vmw_kms_restore_vga(struct vmw_private *vmw_priv); 905 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data, 906 struct drm_file *file_priv); 907 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv); 908 void vmw_kms_cursor_snoop(struct vmw_surface *srf, 909 struct ttm_object_file *tfile, 910 struct ttm_buffer_object *bo, 911 SVGA3dCmdHeader *header); 912 int vmw_kms_write_svga(struct vmw_private *vmw_priv, 913 unsigned width, unsigned height, unsigned pitch, 914 unsigned bpp, unsigned depth); 915 void vmw_kms_idle_workqueues(struct vmw_master *vmaster); 916 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv, 917 uint32_t pitch, 918 uint32_t height); 919 u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe); 920 int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe); 921 void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe); 922 int vmw_kms_present(struct vmw_private *dev_priv, 923 struct drm_file *file_priv, 924 struct vmw_framebuffer *vfb, 925 struct vmw_surface *surface, 926 uint32_t sid, int32_t destX, int32_t destY, 927 struct drm_vmw_rect *clips, 928 uint32_t num_clips); 929 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, 930 struct drm_file *file_priv); 931 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv); 932 933 int vmw_dumb_create(struct drm_file *file_priv, 934 struct drm_device *dev, 935 struct drm_mode_create_dumb *args); 936 937 int vmw_dumb_map_offset(struct drm_file *file_priv, 938 struct drm_device *dev, uint32_t handle, 939 uint64_t *offset); 940 int vmw_dumb_destroy(struct drm_file *file_priv, 941 struct drm_device *dev, 942 uint32_t handle); 943 extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible); 944 extern void vmw_resource_unpin(struct vmw_resource *res); 945 extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res); 946 947 /** 948 * Overlay control - vmwgfx_overlay.c 949 */ 950 951 int vmw_overlay_init(struct vmw_private *dev_priv); 952 int vmw_overlay_close(struct vmw_private *dev_priv); 953 int vmw_overlay_ioctl(struct drm_device *dev, void *data, 954 struct drm_file *file_priv); 955 int vmw_overlay_stop_all(struct vmw_private *dev_priv); 956 int vmw_overlay_resume_all(struct vmw_private *dev_priv); 957 int vmw_overlay_pause_all(struct vmw_private *dev_priv); 958 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out); 959 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id); 960 int vmw_overlay_num_overlays(struct vmw_private *dev_priv); 961 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv); 962 963 /** 964 * GMR Id manager 965 */ 966 967 extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func; 968 969 /** 970 * Prime - vmwgfx_prime.c 971 */ 972 973 extern const struct dma_buf_ops vmw_prime_dmabuf_ops; 974 extern int vmw_prime_fd_to_handle(struct drm_device *dev, 975 struct drm_file *file_priv, 976 int fd, u32 *handle); 977 extern int vmw_prime_handle_to_fd(struct drm_device *dev, 978 struct drm_file *file_priv, 979 uint32_t handle, uint32_t flags, 980 int *prime_fd); 981 982 /* 983 * MemoryOBject management - vmwgfx_mob.c 984 */ 985 struct vmw_mob; 986 extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob, 987 const struct vmw_sg_table *vsgt, 988 unsigned long num_data_pages, int32_t mob_id); 989 extern void vmw_mob_unbind(struct vmw_private *dev_priv, 990 struct vmw_mob *mob); 991 extern void vmw_mob_destroy(struct vmw_mob *mob); 992 extern struct vmw_mob *vmw_mob_create(unsigned long data_pages); 993 extern int vmw_otables_setup(struct vmw_private *dev_priv); 994 extern void vmw_otables_takedown(struct vmw_private *dev_priv); 995 996 /* 997 * Context management - vmwgfx_context.c 998 */ 999 1000 extern const struct vmw_user_resource_conv *user_context_converter; 1001 1002 extern int vmw_context_check(struct vmw_private *dev_priv, 1003 struct ttm_object_file *tfile, 1004 int id, 1005 struct vmw_resource **p_res); 1006 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data, 1007 struct drm_file *file_priv); 1008 extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data, 1009 struct drm_file *file_priv); 1010 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data, 1011 struct drm_file *file_priv); 1012 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx); 1013 extern struct vmw_cmdbuf_res_manager * 1014 vmw_context_res_man(struct vmw_resource *ctx); 1015 extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx, 1016 SVGACOTableType cotable_type); 1017 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx); 1018 struct vmw_ctx_binding_state; 1019 extern struct vmw_ctx_binding_state * 1020 vmw_context_binding_state(struct vmw_resource *ctx); 1021 extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx, 1022 bool readback); 1023 extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res, 1024 struct vmw_dma_buffer *mob); 1025 extern struct vmw_dma_buffer * 1026 vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res); 1027 1028 1029 /* 1030 * Surface management - vmwgfx_surface.c 1031 */ 1032 1033 extern const struct vmw_user_resource_conv *user_surface_converter; 1034 1035 extern void vmw_surface_res_free(struct vmw_resource *res); 1036 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data, 1037 struct drm_file *file_priv); 1038 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data, 1039 struct drm_file *file_priv); 1040 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, 1041 struct drm_file *file_priv); 1042 extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data, 1043 struct drm_file *file_priv); 1044 extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data, 1045 struct drm_file *file_priv); 1046 extern int vmw_surface_check(struct vmw_private *dev_priv, 1047 struct ttm_object_file *tfile, 1048 uint32_t handle, int *id); 1049 extern int vmw_surface_validate(struct vmw_private *dev_priv, 1050 struct vmw_surface *srf); 1051 int vmw_surface_gb_priv_define(struct drm_device *dev, 1052 uint32_t user_accounting_size, 1053 uint32_t svga3d_flags, 1054 SVGA3dSurfaceFormat format, 1055 bool for_scanout, 1056 uint32_t num_mip_levels, 1057 uint32_t multisample_count, 1058 uint32_t array_size, 1059 struct drm_vmw_size size, 1060 struct vmw_surface **srf_out); 1061 1062 /* 1063 * Shader management - vmwgfx_shader.c 1064 */ 1065 1066 extern const struct vmw_user_resource_conv *user_shader_converter; 1067 1068 extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data, 1069 struct drm_file *file_priv); 1070 extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data, 1071 struct drm_file *file_priv); 1072 extern int vmw_compat_shader_add(struct vmw_private *dev_priv, 1073 struct vmw_cmdbuf_res_manager *man, 1074 u32 user_key, const void *bytecode, 1075 SVGA3dShaderType shader_type, 1076 size_t size, 1077 struct list_head *list); 1078 extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man, 1079 u32 user_key, SVGA3dShaderType shader_type, 1080 struct list_head *list); 1081 extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man, 1082 struct vmw_resource *ctx, 1083 u32 user_key, 1084 SVGA3dShaderType shader_type, 1085 struct list_head *list); 1086 extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv, 1087 struct list_head *list, 1088 bool readback); 1089 1090 extern struct vmw_resource * 1091 vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man, 1092 u32 user_key, SVGA3dShaderType shader_type); 1093 1094 /* 1095 * Command buffer managed resources - vmwgfx_cmdbuf_res.c 1096 */ 1097 1098 extern struct vmw_cmdbuf_res_manager * 1099 vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv); 1100 extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man); 1101 extern size_t vmw_cmdbuf_res_man_size(void); 1102 extern struct vmw_resource * 1103 vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man, 1104 enum vmw_cmdbuf_res_type res_type, 1105 u32 user_key); 1106 extern void vmw_cmdbuf_res_revert(struct list_head *list); 1107 extern void vmw_cmdbuf_res_commit(struct list_head *list); 1108 extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man, 1109 enum vmw_cmdbuf_res_type res_type, 1110 u32 user_key, 1111 struct vmw_resource *res, 1112 struct list_head *list); 1113 extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man, 1114 enum vmw_cmdbuf_res_type res_type, 1115 u32 user_key, 1116 struct list_head *list, 1117 struct vmw_resource **res); 1118 1119 /* 1120 * COTable management - vmwgfx_cotable.c 1121 */ 1122 extern const SVGACOTableType vmw_cotable_scrub_order[]; 1123 extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv, 1124 struct vmw_resource *ctx, 1125 u32 type); 1126 extern int vmw_cotable_notify(struct vmw_resource *res, int id); 1127 extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback); 1128 extern void vmw_cotable_add_resource(struct vmw_resource *ctx, 1129 struct list_head *head); 1130 1131 /* 1132 * Command buffer managerment vmwgfx_cmdbuf.c 1133 */ 1134 struct vmw_cmdbuf_man; 1135 struct vmw_cmdbuf_header; 1136 1137 extern struct vmw_cmdbuf_man * 1138 vmw_cmdbuf_man_create(struct vmw_private *dev_priv); 1139 extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man, 1140 size_t size, size_t default_size); 1141 extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man); 1142 extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man); 1143 extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible, 1144 unsigned long timeout); 1145 extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size, 1146 int ctx_id, bool interruptible, 1147 struct vmw_cmdbuf_header *header); 1148 extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size, 1149 struct vmw_cmdbuf_header *header, 1150 bool flush); 1151 extern void vmw_cmdbuf_tasklet_schedule(struct vmw_cmdbuf_man *man); 1152 extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man, 1153 size_t size, bool interruptible, 1154 struct vmw_cmdbuf_header **p_header); 1155 extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header); 1156 extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man, 1157 bool interruptible); 1158 1159 1160 /** 1161 * Inline helper functions 1162 */ 1163 1164 static inline void vmw_surface_unreference(struct vmw_surface **srf) 1165 { 1166 struct vmw_surface *tmp_srf = *srf; 1167 struct vmw_resource *res = &tmp_srf->res; 1168 *srf = NULL; 1169 1170 vmw_resource_unreference(&res); 1171 } 1172 1173 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf) 1174 { 1175 (void) vmw_resource_reference(&srf->res); 1176 return srf; 1177 } 1178 1179 static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf) 1180 { 1181 struct vmw_dma_buffer *tmp_buf = *buf; 1182 1183 *buf = NULL; 1184 if (tmp_buf != NULL) { 1185 struct ttm_buffer_object *bo = &tmp_buf->base; 1186 1187 ttm_bo_unref(&bo); 1188 } 1189 } 1190 1191 static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf) 1192 { 1193 if (ttm_bo_reference(&buf->base)) 1194 return buf; 1195 return NULL; 1196 } 1197 1198 static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv) 1199 { 1200 return (struct ttm_mem_global *) dev_priv->mem_global_ref.object; 1201 } 1202 1203 static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv) 1204 { 1205 atomic_inc(&dev_priv->num_fifo_resources); 1206 } 1207 1208 static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv) 1209 { 1210 atomic_dec(&dev_priv->num_fifo_resources); 1211 } 1212 1213 /** 1214 * vmw_mmio_read - Perform a MMIO read from volatile memory 1215 * 1216 * @addr: The address to read from 1217 * 1218 * This function is intended to be equivalent to ioread32() on 1219 * memremap'd memory, but without byteswapping. 1220 */ 1221 static inline u32 vmw_mmio_read(u32 *addr) 1222 { 1223 return READ_ONCE(*addr); 1224 } 1225 1226 /** 1227 * vmw_mmio_write - Perform a MMIO write to volatile memory 1228 * 1229 * @addr: The address to write to 1230 * 1231 * This function is intended to be equivalent to iowrite32 on 1232 * memremap'd memory, but without byteswapping. 1233 */ 1234 static inline void vmw_mmio_write(u32 value, u32 *addr) 1235 { 1236 WRITE_ONCE(*addr, value); 1237 } 1238 #endif 1239
Indexes created Sun Oct 19 22:09:57 GMT 2025