drivers/gpu/drm/vmwgfx/vmwgfx

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This source file includes following definitions.
vmw_res_to_srf
vmw_write
vmw_read
vmw_resource_mob_attached
vmw_user_resource_noref_release
vmw_user_bo_noref_release
vmw_bo_prio_adjust
vmw_bo_prio_add
vmw_bo_prio_del
vmw_piter_next
vmw_piter_dma_addr
vmw_piter_page
vmw_surface_unreference
vmw_surface_reference
vmw_bo_unreference
vmw_bo_reference
vmw_mem_glob
vmw_fifo_resource_inc
vmw_fifo_resource_dec
vmw_mmio_read
vmw_mmio_write
   1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
   2 /**************************************************************************
   3  *
   4  * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA
   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 <linux/suspend.h>
  32 #include <linux/sync_file.h>
  33 
  34 #include <drm/drm_auth.h>
  35 #include <drm/drm_device.h>
  36 #include <drm/drm_file.h>
  37 #include <drm/drm_hashtab.h>
  38 #include <drm/drm_rect.h>
  39 
  40 #include <drm/ttm/ttm_bo_driver.h>
  41 #include <drm/ttm/ttm_execbuf_util.h>
  42 #include <drm/ttm/ttm_module.h>
  43 
  44 #include "ttm_lock.h"
  45 #include "ttm_object.h"
  46 
  47 #include "vmwgfx_fence.h"
  48 #include "vmwgfx_reg.h"
  49 #include "vmwgfx_validation.h"
  50 
  51 /*
  52  * FIXME: vmwgfx_drm.h needs to be last due to dependencies.
  53  * uapi headers should not depend on header files outside uapi/.
  54  */
  55 #include <drm/vmwgfx_drm.h>
  56 
  57 
  58 #define VMWGFX_DRIVER_NAME "vmwgfx"
  59 #define VMWGFX_DRIVER_DATE "20180704"
  60 #define VMWGFX_DRIVER_MAJOR 2
  61 #define VMWGFX_DRIVER_MINOR 15
  62 #define VMWGFX_DRIVER_PATCHLEVEL 0
  63 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
  64 #define VMWGFX_MAX_RELOCATIONS 2048
  65 #define VMWGFX_MAX_VALIDATIONS 2048
  66 #define VMWGFX_MAX_DISPLAYS 16
  67 #define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768
  68 #define VMWGFX_ENABLE_SCREEN_TARGET_OTABLE 1
  69 
  70 /*
  71  * Perhaps we should have sysfs entries for these.
  72  */
  73 #define VMWGFX_NUM_GB_CONTEXT 256
  74 #define VMWGFX_NUM_GB_SHADER 20000
  75 #define VMWGFX_NUM_GB_SURFACE 32768
  76 #define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS
  77 #define VMWGFX_NUM_DXCONTEXT 256
  78 #define VMWGFX_NUM_DXQUERY 512
  79 #define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\
  80                         VMWGFX_NUM_GB_SHADER +\
  81                         VMWGFX_NUM_GB_SURFACE +\
  82                         VMWGFX_NUM_GB_SCREEN_TARGET)
  83 
  84 #define VMW_PL_GMR (TTM_PL_PRIV + 0)
  85 #define VMW_PL_FLAG_GMR (TTM_PL_FLAG_PRIV << 0)
  86 #define VMW_PL_MOB (TTM_PL_PRIV + 1)
  87 #define VMW_PL_FLAG_MOB (TTM_PL_FLAG_PRIV << 1)
  88 
  89 #define VMW_RES_CONTEXT ttm_driver_type0
  90 #define VMW_RES_SURFACE ttm_driver_type1
  91 #define VMW_RES_STREAM ttm_driver_type2
  92 #define VMW_RES_FENCE ttm_driver_type3
  93 #define VMW_RES_SHADER ttm_driver_type4
  94 
  95 struct vmw_fpriv {
  96         struct ttm_object_file *tfile;
  97         bool gb_aware; /* user-space is guest-backed aware */
  98 };
  99 
 100 /**
 101  * struct vmw_buffer_object - TTM buffer object with vmwgfx additions
 102  * @base: The TTM buffer object
 103  * @res_list: List of resources using this buffer object as a backing MOB
 104  * @pin_count: pin depth
 105  * @dx_query_ctx: DX context if this buffer object is used as a DX query MOB
 106  * @map: Kmap object for semi-persistent mappings
 107  * @res_prios: Eviction priority counts for attached resources
 108  */
 109 struct vmw_buffer_object {
 110         struct ttm_buffer_object base;
 111         struct list_head res_list;
 112         s32 pin_count;
 113         /* Not ref-counted.  Protected by binding_mutex */
 114         struct vmw_resource *dx_query_ctx;
 115         /* Protected by reservation */
 116         struct ttm_bo_kmap_obj map;
 117         u32 res_prios[TTM_MAX_BO_PRIORITY];
 118 };
 119 
 120 /**
 121  * struct vmw_validate_buffer - Carries validation info about buffers.
 122  *
 123  * @base: Validation info for TTM.
 124  * @hash: Hash entry for quick lookup of the TTM buffer object.
 125  *
 126  * This structure contains also driver private validation info
 127  * on top of the info needed by TTM.
 128  */
 129 struct vmw_validate_buffer {
 130         struct ttm_validate_buffer base;
 131         struct drm_hash_item hash;
 132         bool validate_as_mob;
 133 };
 134 
 135 struct vmw_res_func;
 136 
 137 
 138 /**
 139  * struct vmw-resource - base class for hardware resources
 140  *
 141  * @kref: For refcounting.
 142  * @dev_priv: Pointer to the device private for this resource. Immutable.
 143  * @id: Device id. Protected by @dev_priv::resource_lock.
 144  * @backup_size: Backup buffer size. Immutable.
 145  * @res_dirty: Resource contains data not yet in the backup buffer. Protected
 146  * by resource reserved.
 147  * @backup_dirty: Backup buffer contains data not yet in the HW resource.
 148  * Protecte by resource reserved.
 149  * @backup: The backup buffer if any. Protected by resource reserved.
 150  * @backup_offset: Offset into the backup buffer if any. Protected by resource
 151  * reserved. Note that only a few resource types can have a @backup_offset
 152  * different from zero.
 153  * @pin_count: The pin count for this resource. A pinned resource has a
 154  * pin-count greater than zero. It is not on the resource LRU lists and its
 155  * backup buffer is pinned. Hence it can't be evicted.
 156  * @func: Method vtable for this resource. Immutable.
 157  * @lru_head: List head for the LRU list. Protected by @dev_priv::resource_lock.
 158  * @mob_head: List head for the MOB backup list. Protected by @backup reserved.
 159  * @binding_head: List head for the context binding list. Protected by
 160  * the @dev_priv::binding_mutex
 161  * @res_free: The resource destructor.
 162  * @hw_destroy: Callback to destroy the resource on the device, as part of
 163  * resource destruction.
 164  */
 165 struct vmw_resource {
 166         struct kref kref;
 167         struct vmw_private *dev_priv;
 168         int id;
 169         u32 used_prio;
 170         unsigned long backup_size;
 171         bool res_dirty;
 172         bool backup_dirty;
 173         struct vmw_buffer_object *backup;
 174         unsigned long backup_offset;
 175         unsigned long pin_count;
 176         const struct vmw_res_func *func;
 177         struct list_head lru_head;
 178         struct list_head mob_head;
 179         struct list_head binding_head;
 180         void (*res_free) (struct vmw_resource *res);
 181         void (*hw_destroy) (struct vmw_resource *res);
 182 };
 183 
 184 
 185 /*
 186  * Resources that are managed using ioctls.
 187  */
 188 enum vmw_res_type {
 189         vmw_res_context,
 190         vmw_res_surface,
 191         vmw_res_stream,
 192         vmw_res_shader,
 193         vmw_res_dx_context,
 194         vmw_res_cotable,
 195         vmw_res_view,
 196         vmw_res_max
 197 };
 198 
 199 /*
 200  * Resources that are managed using command streams.
 201  */
 202 enum vmw_cmdbuf_res_type {
 203         vmw_cmdbuf_res_shader,
 204         vmw_cmdbuf_res_view
 205 };
 206 
 207 struct vmw_cmdbuf_res_manager;
 208 
 209 struct vmw_cursor_snooper {
 210         size_t age;
 211         uint32_t *image;
 212 };
 213 
 214 struct vmw_framebuffer;
 215 struct vmw_surface_offset;
 216 
 217 struct vmw_surface {
 218         struct vmw_resource res;
 219         SVGA3dSurfaceAllFlags flags;
 220         uint32_t format;
 221         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 222         struct drm_vmw_size base_size;
 223         struct drm_vmw_size *sizes;
 224         uint32_t num_sizes;
 225         bool scanout;
 226         uint32_t array_size;
 227         /* TODO so far just a extra pointer */
 228         struct vmw_cursor_snooper snooper;
 229         struct vmw_surface_offset *offsets;
 230         SVGA3dTextureFilter autogen_filter;
 231         uint32_t multisample_count;
 232         struct list_head view_list;
 233         SVGA3dMSPattern multisample_pattern;
 234         SVGA3dMSQualityLevel quality_level;
 235 };
 236 
 237 struct vmw_marker_queue {
 238         struct list_head head;
 239         u64 lag;
 240         u64 lag_time;
 241         spinlock_t lock;
 242 };
 243 
 244 struct vmw_fifo_state {
 245         unsigned long reserved_size;
 246         u32 *dynamic_buffer;
 247         u32 *static_buffer;
 248         unsigned long static_buffer_size;
 249         bool using_bounce_buffer;
 250         uint32_t capabilities;
 251         struct mutex fifo_mutex;
 252         struct rw_semaphore rwsem;
 253         struct vmw_marker_queue marker_queue;
 254         bool dx;
 255 };
 256 
 257 /**
 258  * struct vmw_res_cache_entry - resource information cache entry
 259  * @handle: User-space handle of a resource.
 260  * @res: Non-ref-counted pointer to the resource.
 261  * @valid_handle: Whether the @handle member is valid.
 262  * @valid: Whether the entry is valid, which also implies that the execbuf
 263  * code holds a reference to the resource, and it's placed on the
 264  * validation list.
 265  *
 266  * Used to avoid frequent repeated user-space handle lookups of the
 267  * same resource.
 268  */
 269 struct vmw_res_cache_entry {
 270         uint32_t handle;
 271         struct vmw_resource *res;
 272         void *private;
 273         unsigned short valid_handle;
 274         unsigned short valid;
 275 };
 276 
 277 /**
 278  * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
 279  */
 280 enum vmw_dma_map_mode {
 281         vmw_dma_phys,           /* Use physical page addresses */
 282         vmw_dma_alloc_coherent, /* Use TTM coherent pages */
 283         vmw_dma_map_populate,   /* Unmap from DMA just after unpopulate */
 284         vmw_dma_map_bind,       /* Unmap from DMA just before unbind */
 285         vmw_dma_map_max
 286 };
 287 
 288 /**
 289  * struct vmw_sg_table - Scatter/gather table for binding, with additional
 290  * device-specific information.
 291  *
 292  * @sgt: Pointer to a struct sg_table with binding information
 293  * @num_regions: Number of regions with device-address contiguous pages
 294  */
 295 struct vmw_sg_table {
 296         enum vmw_dma_map_mode mode;
 297         struct page **pages;
 298         const dma_addr_t *addrs;
 299         struct sg_table *sgt;
 300         unsigned long num_regions;
 301         unsigned long num_pages;
 302 };
 303 
 304 /**
 305  * struct vmw_piter - Page iterator that iterates over a list of pages
 306  * and DMA addresses that could be either a scatter-gather list or
 307  * arrays
 308  *
 309  * @pages: Array of page pointers to the pages.
 310  * @addrs: DMA addresses to the pages if coherent pages are used.
 311  * @iter: Scatter-gather page iterator. Current position in SG list.
 312  * @i: Current position in arrays.
 313  * @num_pages: Number of pages total.
 314  * @next: Function to advance the iterator. Returns false if past the list
 315  * of pages, true otherwise.
 316  * @dma_address: Function to return the DMA address of the current page.
 317  */
 318 struct vmw_piter {
 319         struct page **pages;
 320         const dma_addr_t *addrs;
 321         struct sg_dma_page_iter iter;
 322         unsigned long i;
 323         unsigned long num_pages;
 324         bool (*next)(struct vmw_piter *);
 325         dma_addr_t (*dma_address)(struct vmw_piter *);
 326         struct page *(*page)(struct vmw_piter *);
 327 };
 328 
 329 /*
 330  * enum vmw_display_unit_type - Describes the display unit
 331  */
 332 enum vmw_display_unit_type {
 333         vmw_du_invalid = 0,
 334         vmw_du_legacy,
 335         vmw_du_screen_object,
 336         vmw_du_screen_target
 337 };
 338 
 339 struct vmw_validation_context;
 340 struct vmw_ctx_validation_info;
 341 
 342 /**
 343  * struct vmw_sw_context - Command submission context
 344  * @res_ht: Pointer hash table used to find validation duplicates
 345  * @kernel: Whether the command buffer originates from kernel code rather
 346  * than from user-space
 347  * @fp: If @kernel is false, points to the file of the client. Otherwise
 348  * NULL
 349  * @cmd_bounce: Command bounce buffer used for command validation before
 350  * copying to fifo space
 351  * @cmd_bounce_size: Current command bounce buffer size
 352  * @cur_query_bo: Current buffer object used as query result buffer
 353  * @bo_relocations: List of buffer object relocations
 354  * @res_relocations: List of resource relocations
 355  * @buf_start: Pointer to start of memory where command validation takes
 356  * place
 357  * @res_cache: Cache of recently looked up resources
 358  * @last_query_ctx: Last context that submitted a query
 359  * @needs_post_query_barrier: Whether a query barrier is needed after
 360  * command submission
 361  * @staged_bindings: Cached per-context binding tracker
 362  * @staged_bindings_inuse: Whether the cached per-context binding tracker
 363  * is in use
 364  * @staged_cmd_res: List of staged command buffer managed resources in this
 365  * command buffer
 366  * @ctx_list: List of context resources referenced in this command buffer
 367  * @dx_ctx_node: Validation metadata of the current DX context
 368  * @dx_query_mob: The MOB used for DX queries
 369  * @dx_query_ctx: The DX context used for the last DX query
 370  * @man: Pointer to the command buffer managed resource manager
 371  * @ctx: The validation context
 372  */
 373 struct vmw_sw_context{
 374         struct drm_open_hash res_ht;
 375         bool res_ht_initialized;
 376         bool kernel;
 377         struct vmw_fpriv *fp;
 378         uint32_t *cmd_bounce;
 379         uint32_t cmd_bounce_size;
 380         struct vmw_buffer_object *cur_query_bo;
 381         struct list_head bo_relocations;
 382         struct list_head res_relocations;
 383         uint32_t *buf_start;
 384         struct vmw_res_cache_entry res_cache[vmw_res_max];
 385         struct vmw_resource *last_query_ctx;
 386         bool needs_post_query_barrier;
 387         struct vmw_ctx_binding_state *staged_bindings;
 388         bool staged_bindings_inuse;
 389         struct list_head staged_cmd_res;
 390         struct list_head ctx_list;
 391         struct vmw_ctx_validation_info *dx_ctx_node;
 392         struct vmw_buffer_object *dx_query_mob;
 393         struct vmw_resource *dx_query_ctx;
 394         struct vmw_cmdbuf_res_manager *man;
 395         struct vmw_validation_context *ctx;
 396 };
 397 
 398 struct vmw_legacy_display;
 399 struct vmw_overlay;
 400 
 401 struct vmw_vga_topology_state {
 402         uint32_t width;
 403         uint32_t height;
 404         uint32_t primary;
 405         uint32_t pos_x;
 406         uint32_t pos_y;
 407 };
 408 
 409 
 410 /*
 411  * struct vmw_otable - Guest Memory OBject table metadata
 412  *
 413  * @size:           Size of the table (page-aligned).
 414  * @page_table:     Pointer to a struct vmw_mob holding the page table.
 415  */
 416 struct vmw_otable {
 417         unsigned long size;
 418         struct vmw_mob *page_table;
 419         bool enabled;
 420 };
 421 
 422 struct vmw_otable_batch {
 423         unsigned num_otables;
 424         struct vmw_otable *otables;
 425         struct vmw_resource *context;
 426         struct ttm_buffer_object *otable_bo;
 427 };
 428 
 429 enum {
 430         VMW_IRQTHREAD_FENCE,
 431         VMW_IRQTHREAD_CMDBUF,
 432         VMW_IRQTHREAD_MAX
 433 };
 434 
 435 struct vmw_private {
 436         struct ttm_bo_device bdev;
 437 
 438         struct vmw_fifo_state fifo;
 439 
 440         struct drm_device *dev;
 441         unsigned long vmw_chipset;
 442         unsigned int io_start;
 443         uint32_t vram_start;
 444         uint32_t vram_size;
 445         uint32_t prim_bb_mem;
 446         uint32_t mmio_start;
 447         uint32_t mmio_size;
 448         uint32_t fb_max_width;
 449         uint32_t fb_max_height;
 450         uint32_t texture_max_width;
 451         uint32_t texture_max_height;
 452         uint32_t stdu_max_width;
 453         uint32_t stdu_max_height;
 454         uint32_t initial_width;
 455         uint32_t initial_height;
 456         u32 *mmio_virt;
 457         uint32_t capabilities;
 458         uint32_t capabilities2;
 459         uint32_t max_gmr_ids;
 460         uint32_t max_gmr_pages;
 461         uint32_t max_mob_pages;
 462         uint32_t max_mob_size;
 463         uint32_t memory_size;
 464         bool has_gmr;
 465         bool has_mob;
 466         spinlock_t hw_lock;
 467         spinlock_t cap_lock;
 468         bool has_dx;
 469         bool assume_16bpp;
 470         bool has_sm4_1;
 471 
 472         /*
 473          * VGA registers.
 474          */
 475 
 476         struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS];
 477         uint32_t vga_width;
 478         uint32_t vga_height;
 479         uint32_t vga_bpp;
 480         uint32_t vga_bpl;
 481         uint32_t vga_pitchlock;
 482 
 483         uint32_t num_displays;
 484 
 485         /*
 486          * Framebuffer info.
 487          */
 488 
 489         void *fb_info;
 490         enum vmw_display_unit_type active_display_unit;
 491         struct vmw_legacy_display *ldu_priv;
 492         struct vmw_overlay *overlay_priv;
 493         struct drm_property *hotplug_mode_update_property;
 494         struct drm_property *implicit_placement_property;
 495         struct mutex global_kms_state_mutex;
 496         spinlock_t cursor_lock;
 497         struct drm_atomic_state *suspend_state;
 498 
 499         /*
 500          * Context and surface management.
 501          */
 502 
 503         spinlock_t resource_lock;
 504         struct idr res_idr[vmw_res_max];
 505 
 506         /*
 507          * A resource manager for kernel-only surfaces and
 508          * contexts.
 509          */
 510 
 511         struct ttm_object_device *tdev;
 512 
 513         /*
 514          * Fencing and IRQs.
 515          */
 516 
 517         atomic_t marker_seq;
 518         wait_queue_head_t fence_queue;
 519         wait_queue_head_t fifo_queue;
 520         spinlock_t waiter_lock;
 521         int fence_queue_waiters; /* Protected by waiter_lock */
 522         int goal_queue_waiters; /* Protected by waiter_lock */
 523         int cmdbuf_waiters; /* Protected by waiter_lock */
 524         int error_waiters; /* Protected by waiter_lock */
 525         int fifo_queue_waiters; /* Protected by waiter_lock */
 526         uint32_t last_read_seqno;
 527         struct vmw_fence_manager *fman;
 528         uint32_t irq_mask; /* Updates protected by waiter_lock */
 529 
 530         /*
 531          * Device state
 532          */
 533 
 534         uint32_t traces_state;
 535         uint32_t enable_state;
 536         uint32_t config_done_state;
 537 
 538         /**
 539          * Execbuf
 540          */
 541         /**
 542          * Protected by the cmdbuf mutex.
 543          */
 544 
 545         struct vmw_sw_context ctx;
 546         struct mutex cmdbuf_mutex;
 547         struct mutex binding_mutex;
 548 
 549         /**
 550          * Operating mode.
 551          */
 552 
 553         bool stealth;
 554         bool enable_fb;
 555         spinlock_t svga_lock;
 556 
 557         /**
 558          * PM management.
 559          */
 560         struct notifier_block pm_nb;
 561         bool refuse_hibernation;
 562         bool suspend_locked;
 563 
 564         struct mutex release_mutex;
 565         atomic_t num_fifo_resources;
 566 
 567         /*
 568          * Replace this with an rwsem as soon as we have down_xx_interruptible()
 569          */
 570         struct ttm_lock reservation_sem;
 571 
 572         /*
 573          * Query processing. These members
 574          * are protected by the cmdbuf mutex.
 575          */
 576 
 577         struct vmw_buffer_object *dummy_query_bo;
 578         struct vmw_buffer_object *pinned_bo;
 579         uint32_t query_cid;
 580         uint32_t query_cid_valid;
 581         bool dummy_query_bo_pinned;
 582 
 583         /*
 584          * Surface swapping. The "surface_lru" list is protected by the
 585          * resource lock in order to be able to destroy a surface and take
 586          * it off the lru atomically. "used_memory_size" is currently
 587          * protected by the cmdbuf mutex for simplicity.
 588          */
 589 
 590         struct list_head res_lru[vmw_res_max];
 591         uint32_t used_memory_size;
 592 
 593         /*
 594          * DMA mapping stuff.
 595          */
 596         enum vmw_dma_map_mode map_mode;
 597 
 598         /*
 599          * Guest Backed stuff
 600          */
 601         struct vmw_otable_batch otable_batch;
 602 
 603         struct vmw_cmdbuf_man *cman;
 604         DECLARE_BITMAP(irqthread_pending, VMW_IRQTHREAD_MAX);
 605 
 606         /* Validation memory reservation */
 607         struct vmw_validation_mem vvm;
 608 };
 609 
 610 static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
 611 {
 612         return container_of(res, struct vmw_surface, res);
 613 }
 614 
 615 static inline struct vmw_private *vmw_priv(struct drm_device *dev)
 616 {
 617         return (struct vmw_private *)dev->dev_private;
 618 }
 619 
 620 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
 621 {
 622         return (struct vmw_fpriv *)file_priv->driver_priv;
 623 }
 624 
 625 /*
 626  * The locking here is fine-grained, so that it is performed once
 627  * for every read- and write operation. This is of course costly, but we
 628  * don't perform much register access in the timing critical paths anyway.
 629  * Instead we have the extra benefit of being sure that we don't forget
 630  * the hw lock around register accesses.
 631  */
 632 static inline void vmw_write(struct vmw_private *dev_priv,
 633                              unsigned int offset, uint32_t value)
 634 {
 635         spin_lock(&dev_priv->hw_lock);
 636         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 637         outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
 638         spin_unlock(&dev_priv->hw_lock);
 639 }
 640 
 641 static inline uint32_t vmw_read(struct vmw_private *dev_priv,
 642                                 unsigned int offset)
 643 {
 644         u32 val;
 645 
 646         spin_lock(&dev_priv->hw_lock);
 647         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 648         val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
 649         spin_unlock(&dev_priv->hw_lock);
 650 
 651         return val;
 652 }
 653 
 654 extern void vmw_svga_enable(struct vmw_private *dev_priv);
 655 extern void vmw_svga_disable(struct vmw_private *dev_priv);
 656 
 657 
 658 /**
 659  * GMR utilities - vmwgfx_gmr.c
 660  */
 661 
 662 extern int vmw_gmr_bind(struct vmw_private *dev_priv,
 663                         const struct vmw_sg_table *vsgt,
 664                         unsigned long num_pages,
 665                         int gmr_id);
 666 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
 667 
 668 /**
 669  * Resource utilities - vmwgfx_resource.c
 670  */
 671 struct vmw_user_resource_conv;
 672 
 673 extern void vmw_resource_unreference(struct vmw_resource **p_res);
 674 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
 675 extern struct vmw_resource *
 676 vmw_resource_reference_unless_doomed(struct vmw_resource *res);
 677 extern int vmw_resource_validate(struct vmw_resource *res, bool intr);
 678 extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
 679                                 bool no_backup);
 680 extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
 681 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
 682                                   struct ttm_object_file *tfile,
 683                                   uint32_t handle,
 684                                   struct vmw_surface **out_surf,
 685                                   struct vmw_buffer_object **out_buf);
 686 extern int vmw_user_resource_lookup_handle(
 687         struct vmw_private *dev_priv,
 688         struct ttm_object_file *tfile,
 689         uint32_t handle,
 690         const struct vmw_user_resource_conv *converter,
 691         struct vmw_resource **p_res);
 692 extern struct vmw_resource *
 693 vmw_user_resource_noref_lookup_handle(struct vmw_private *dev_priv,
 694                                       struct ttm_object_file *tfile,
 695                                       uint32_t handle,
 696                                       const struct vmw_user_resource_conv *
 697                                       converter);
 698 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
 699                                   struct drm_file *file_priv);
 700 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
 701                                   struct drm_file *file_priv);
 702 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
 703                                   struct ttm_object_file *tfile,
 704                                   uint32_t *inout_id,
 705                                   struct vmw_resource **out);
 706 extern void vmw_resource_unreserve(struct vmw_resource *res,
 707                                    bool dirty_set,
 708                                    bool dirty,
 709                                    bool switch_backup,
 710                                    struct vmw_buffer_object *new_backup,
 711                                    unsigned long new_backup_offset);
 712 extern void vmw_query_move_notify(struct ttm_buffer_object *bo,
 713                                   struct ttm_mem_reg *mem);
 714 extern int vmw_query_readback_all(struct vmw_buffer_object *dx_query_mob);
 715 extern void vmw_resource_evict_all(struct vmw_private *dev_priv);
 716 extern void vmw_resource_unbind_list(struct vmw_buffer_object *vbo);
 717 void vmw_resource_mob_attach(struct vmw_resource *res);
 718 void vmw_resource_mob_detach(struct vmw_resource *res);
 719 
 720 /**
 721  * vmw_resource_mob_attached - Whether a resource currently has a mob attached
 722  * @res: The resource
 723  *
 724  * Return: true if the resource has a mob attached, false otherwise.
 725  */
 726 static inline bool vmw_resource_mob_attached(const struct vmw_resource *res)
 727 {
 728         return !list_empty(&res->mob_head);
 729 }
 730 
 731 /**
 732  * vmw_user_resource_noref_release - release a user resource pointer looked up
 733  * without reference
 734  */
 735 static inline void vmw_user_resource_noref_release(void)
 736 {
 737         ttm_base_object_noref_release();
 738 }
 739 
 740 /**
 741  * Buffer object helper functions - vmwgfx_bo.c
 742  */
 743 extern int vmw_bo_pin_in_placement(struct vmw_private *vmw_priv,
 744                                    struct vmw_buffer_object *bo,
 745                                    struct ttm_placement *placement,
 746                                    bool interruptible);
 747 extern int vmw_bo_pin_in_vram(struct vmw_private *dev_priv,
 748                               struct vmw_buffer_object *buf,
 749                               bool interruptible);
 750 extern int vmw_bo_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
 751                                      struct vmw_buffer_object *buf,
 752                                      bool interruptible);
 753 extern int vmw_bo_pin_in_start_of_vram(struct vmw_private *vmw_priv,
 754                                        struct vmw_buffer_object *bo,
 755                                        bool interruptible);
 756 extern int vmw_bo_unpin(struct vmw_private *vmw_priv,
 757                         struct vmw_buffer_object *bo,
 758                         bool interruptible);
 759 extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
 760                                  SVGAGuestPtr *ptr);
 761 extern void vmw_bo_pin_reserved(struct vmw_buffer_object *bo, bool pin);
 762 extern void vmw_bo_bo_free(struct ttm_buffer_object *bo);
 763 extern int vmw_bo_init(struct vmw_private *dev_priv,
 764                        struct vmw_buffer_object *vmw_bo,
 765                        size_t size, struct ttm_placement *placement,
 766                        bool interuptable,
 767                        void (*bo_free)(struct ttm_buffer_object *bo));
 768 extern int vmw_user_bo_verify_access(struct ttm_buffer_object *bo,
 769                                      struct ttm_object_file *tfile);
 770 extern int vmw_user_bo_alloc(struct vmw_private *dev_priv,
 771                              struct ttm_object_file *tfile,
 772                              uint32_t size,
 773                              bool shareable,
 774                              uint32_t *handle,
 775                              struct vmw_buffer_object **p_dma_buf,
 776                              struct ttm_base_object **p_base);
 777 extern int vmw_user_bo_reference(struct ttm_object_file *tfile,
 778                                  struct vmw_buffer_object *dma_buf,
 779                                  uint32_t *handle);
 780 extern int vmw_bo_alloc_ioctl(struct drm_device *dev, void *data,
 781                               struct drm_file *file_priv);
 782 extern int vmw_bo_unref_ioctl(struct drm_device *dev, void *data,
 783                               struct drm_file *file_priv);
 784 extern int vmw_user_bo_synccpu_ioctl(struct drm_device *dev, void *data,
 785                                      struct drm_file *file_priv);
 786 extern int vmw_user_bo_lookup(struct ttm_object_file *tfile,
 787                               uint32_t id, struct vmw_buffer_object **out,
 788                               struct ttm_base_object **base);
 789 extern void vmw_bo_fence_single(struct ttm_buffer_object *bo,
 790                                 struct vmw_fence_obj *fence);
 791 extern void *vmw_bo_map_and_cache(struct vmw_buffer_object *vbo);
 792 extern void vmw_bo_unmap(struct vmw_buffer_object *vbo);
 793 extern void vmw_bo_move_notify(struct ttm_buffer_object *bo,
 794                                struct ttm_mem_reg *mem);
 795 extern void vmw_bo_swap_notify(struct ttm_buffer_object *bo);
 796 extern struct vmw_buffer_object *
 797 vmw_user_bo_noref_lookup(struct ttm_object_file *tfile, u32 handle);
 798 
 799 /**
 800  * vmw_user_bo_noref_release - release a buffer object pointer looked up
 801  * without reference
 802  */
 803 static inline void vmw_user_bo_noref_release(void)
 804 {
 805         ttm_base_object_noref_release();
 806 }
 807 
 808 /**
 809  * vmw_bo_adjust_prio - Adjust the buffer object eviction priority
 810  * according to attached resources
 811  * @vbo: The struct vmw_buffer_object
 812  */
 813 static inline void vmw_bo_prio_adjust(struct vmw_buffer_object *vbo)
 814 {
 815         int i = ARRAY_SIZE(vbo->res_prios);
 816 
 817         while (i--) {
 818                 if (vbo->res_prios[i]) {
 819                         vbo->base.priority = i;
 820                         return;
 821                 }
 822         }
 823 
 824         vbo->base.priority = 3;
 825 }
 826 
 827 /**
 828  * vmw_bo_prio_add - Notify a buffer object of a newly attached resource
 829  * eviction priority
 830  * @vbo: The struct vmw_buffer_object
 831  * @prio: The resource priority
 832  *
 833  * After being notified, the code assigns the highest resource eviction priority
 834  * to the backing buffer object (mob).
 835  */
 836 static inline void vmw_bo_prio_add(struct vmw_buffer_object *vbo, int prio)
 837 {
 838         if (vbo->res_prios[prio]++ == 0)
 839                 vmw_bo_prio_adjust(vbo);
 840 }
 841 
 842 /**
 843  * vmw_bo_prio_del - Notify a buffer object of a resource with a certain
 844  * priority being removed
 845  * @vbo: The struct vmw_buffer_object
 846  * @prio: The resource priority
 847  *
 848  * After being notified, the code assigns the highest resource eviction priority
 849  * to the backing buffer object (mob).
 850  */
 851 static inline void vmw_bo_prio_del(struct vmw_buffer_object *vbo, int prio)
 852 {
 853         if (--vbo->res_prios[prio] == 0)
 854                 vmw_bo_prio_adjust(vbo);
 855 }
 856 
 857 /**
 858  * Misc Ioctl functionality - vmwgfx_ioctl.c
 859  */
 860 
 861 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 862                               struct drm_file *file_priv);
 863 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
 864                                 struct drm_file *file_priv);
 865 extern int vmw_present_ioctl(struct drm_device *dev, void *data,
 866                              struct drm_file *file_priv);
 867 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
 868                                       struct drm_file *file_priv);
 869 extern __poll_t vmw_fops_poll(struct file *filp,
 870                                   struct poll_table_struct *wait);
 871 extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
 872                              size_t count, loff_t *offset);
 873 
 874 /**
 875  * Fifo utilities - vmwgfx_fifo.c
 876  */
 877 
 878 extern int vmw_fifo_init(struct vmw_private *dev_priv,
 879                          struct vmw_fifo_state *fifo);
 880 extern void vmw_fifo_release(struct vmw_private *dev_priv,
 881                              struct vmw_fifo_state *fifo);
 882 extern void *
 883 vmw_fifo_reserve_dx(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id);
 884 extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
 885 extern void vmw_fifo_commit_flush(struct vmw_private *dev_priv, uint32_t bytes);
 886 extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
 887                                uint32_t *seqno);
 888 extern void vmw_fifo_ping_host_locked(struct vmw_private *, uint32_t reason);
 889 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 890 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
 891 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
 892 extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv,
 893                                      uint32_t cid);
 894 extern int vmw_fifo_flush(struct vmw_private *dev_priv,
 895                           bool interruptible);
 896 
 897 #define VMW_FIFO_RESERVE_DX(__priv, __bytes, __ctx_id)                        \
 898 ({                                                                            \
 899         vmw_fifo_reserve_dx(__priv, __bytes, __ctx_id) ? : ({                 \
 900                 DRM_ERROR("FIFO reserve failed at %s for %u bytes\n",         \
 901                           __func__, (unsigned int) __bytes);                  \
 902                 NULL;                                                         \
 903         });                                                                   \
 904 })
 905 
 906 #define VMW_FIFO_RESERVE(__priv, __bytes)                                     \
 907         VMW_FIFO_RESERVE_DX(__priv, __bytes, SVGA3D_INVALID_ID)
 908 
 909 /**
 910  * TTM glue - vmwgfx_ttm_glue.c
 911  */
 912 
 913 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 914 
 915 extern void vmw_validation_mem_init_ttm(struct vmw_private *dev_priv,
 916                                         size_t gran);
 917 /**
 918  * TTM buffer object driver - vmwgfx_ttm_buffer.c
 919  */
 920 
 921 extern const size_t vmw_tt_size;
 922 extern struct ttm_placement vmw_vram_placement;
 923 extern struct ttm_placement vmw_vram_ne_placement;
 924 extern struct ttm_placement vmw_vram_sys_placement;
 925 extern struct ttm_placement vmw_vram_gmr_placement;
 926 extern struct ttm_placement vmw_vram_gmr_ne_placement;
 927 extern struct ttm_placement vmw_sys_placement;
 928 extern struct ttm_placement vmw_sys_ne_placement;
 929 extern struct ttm_placement vmw_evictable_placement;
 930 extern struct ttm_placement vmw_srf_placement;
 931 extern struct ttm_placement vmw_mob_placement;
 932 extern struct ttm_placement vmw_mob_ne_placement;
 933 extern struct ttm_placement vmw_nonfixed_placement;
 934 extern struct ttm_bo_driver vmw_bo_driver;
 935 extern int vmw_dma_quiescent(struct drm_device *dev);
 936 extern int vmw_bo_map_dma(struct ttm_buffer_object *bo);
 937 extern void vmw_bo_unmap_dma(struct ttm_buffer_object *bo);
 938 extern const struct vmw_sg_table *
 939 vmw_bo_sg_table(struct ttm_buffer_object *bo);
 940 extern void vmw_piter_start(struct vmw_piter *viter,
 941                             const struct vmw_sg_table *vsgt,
 942                             unsigned long p_offs);
 943 
 944 /**
 945  * vmw_piter_next - Advance the iterator one page.
 946  *
 947  * @viter: Pointer to the iterator to advance.
 948  *
 949  * Returns false if past the list of pages, true otherwise.
 950  */
 951 static inline bool vmw_piter_next(struct vmw_piter *viter)
 952 {
 953         return viter->next(viter);
 954 }
 955 
 956 /**
 957  * vmw_piter_dma_addr - Return the DMA address of the current page.
 958  *
 959  * @viter: Pointer to the iterator
 960  *
 961  * Returns the DMA address of the page pointed to by @viter.
 962  */
 963 static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter)
 964 {
 965         return viter->dma_address(viter);
 966 }
 967 
 968 /**
 969  * vmw_piter_page - Return a pointer to the current page.
 970  *
 971  * @viter: Pointer to the iterator
 972  *
 973  * Returns the DMA address of the page pointed to by @viter.
 974  */
 975 static inline struct page *vmw_piter_page(struct vmw_piter *viter)
 976 {
 977         return viter->page(viter);
 978 }
 979 
 980 /**
 981  * Command submission - vmwgfx_execbuf.c
 982  */
 983 
 984 extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 985                              struct drm_file *file_priv);
 986 extern int vmw_execbuf_process(struct drm_file *file_priv,
 987                                struct vmw_private *dev_priv,
 988                                void __user *user_commands,
 989                                void *kernel_commands,
 990                                uint32_t command_size,
 991                                uint64_t throttle_us,
 992                                uint32_t dx_context_handle,
 993                                struct drm_vmw_fence_rep __user
 994                                *user_fence_rep,
 995                                struct vmw_fence_obj **out_fence,
 996                                uint32_t flags);
 997 extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
 998                                             struct vmw_fence_obj *fence);
 999 extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);
1000 
1001 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
1002                                       struct vmw_private *dev_priv,
1003                                       struct vmw_fence_obj **p_fence,
1004                                       uint32_t *p_handle);
1005 extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
1006                                         struct vmw_fpriv *vmw_fp,
1007                                         int ret,
1008                                         struct drm_vmw_fence_rep __user
1009                                         *user_fence_rep,
1010                                         struct vmw_fence_obj *fence,
1011                                         uint32_t fence_handle,
1012                                         int32_t out_fence_fd,
1013                                         struct sync_file *sync_file);
1014 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd);
1015 
1016 /**
1017  * IRQs and wating - vmwgfx_irq.c
1018  */
1019 
1020 extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
1021                           uint32_t seqno, bool interruptible,
1022                           unsigned long timeout);
1023 extern int vmw_irq_install(struct drm_device *dev, int irq);
1024 extern void vmw_irq_uninstall(struct drm_device *dev);
1025 extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
1026                                 uint32_t seqno);
1027 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
1028                              bool lazy,
1029                              bool fifo_idle,
1030                              uint32_t seqno,
1031                              bool interruptible,
1032                              unsigned long timeout);
1033 extern void vmw_update_seqno(struct vmw_private *dev_priv,
1034                                 struct vmw_fifo_state *fifo_state);
1035 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
1036 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
1037 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
1038 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
1039 extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag,
1040                                    int *waiter_count);
1041 extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv,
1042                                       u32 flag, int *waiter_count);
1043 
1044 /**
1045  * Rudimentary fence-like objects currently used only for throttling -
1046  * vmwgfx_marker.c
1047  */
1048 
1049 extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
1050 extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
1051 extern int vmw_marker_push(struct vmw_marker_queue *queue,
1052                            uint32_t seqno);
1053 extern int vmw_marker_pull(struct vmw_marker_queue *queue,
1054                            uint32_t signaled_seqno);
1055 extern int vmw_wait_lag(struct vmw_private *dev_priv,
1056                         struct vmw_marker_queue *queue, uint32_t us);
1057 
1058 /**
1059  * Kernel framebuffer - vmwgfx_fb.c
1060  */
1061 
1062 int vmw_fb_init(struct vmw_private *vmw_priv);
1063 int vmw_fb_close(struct vmw_private *dev_priv);
1064 int vmw_fb_off(struct vmw_private *vmw_priv);
1065 int vmw_fb_on(struct vmw_private *vmw_priv);
1066 
1067 /**
1068  * Kernel modesetting - vmwgfx_kms.c
1069  */
1070 
1071 int vmw_kms_init(struct vmw_private *dev_priv);
1072 int vmw_kms_close(struct vmw_private *dev_priv);
1073 int vmw_kms_save_vga(struct vmw_private *vmw_priv);
1074 int vmw_kms_restore_vga(struct vmw_private *vmw_priv);
1075 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1076                                 struct drm_file *file_priv);
1077 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
1078 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
1079                           struct ttm_object_file *tfile,
1080                           struct ttm_buffer_object *bo,
1081                           SVGA3dCmdHeader *header);
1082 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1083                        unsigned width, unsigned height, unsigned pitch,
1084                        unsigned bpp, unsigned depth);
1085 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1086                                 uint32_t pitch,
1087                                 uint32_t height);
1088 u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
1089 int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe);
1090 void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe);
1091 int vmw_kms_present(struct vmw_private *dev_priv,
1092                     struct drm_file *file_priv,
1093                     struct vmw_framebuffer *vfb,
1094                     struct vmw_surface *surface,
1095                     uint32_t sid, int32_t destX, int32_t destY,
1096                     struct drm_vmw_rect *clips,
1097                     uint32_t num_clips);
1098 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1099                                 struct drm_file *file_priv);
1100 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
1101 int vmw_kms_suspend(struct drm_device *dev);
1102 int vmw_kms_resume(struct drm_device *dev);
1103 void vmw_kms_lost_device(struct drm_device *dev);
1104 
1105 int vmw_dumb_create(struct drm_file *file_priv,
1106                     struct drm_device *dev,
1107                     struct drm_mode_create_dumb *args);
1108 
1109 int vmw_dumb_map_offset(struct drm_file *file_priv,
1110                         struct drm_device *dev, uint32_t handle,
1111                         uint64_t *offset);
1112 int vmw_dumb_destroy(struct drm_file *file_priv,
1113                      struct drm_device *dev,
1114                      uint32_t handle);
1115 extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible);
1116 extern void vmw_resource_unpin(struct vmw_resource *res);
1117 extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res);
1118 
1119 /**
1120  * Overlay control - vmwgfx_overlay.c
1121  */
1122 
1123 int vmw_overlay_init(struct vmw_private *dev_priv);
1124 int vmw_overlay_close(struct vmw_private *dev_priv);
1125 int vmw_overlay_ioctl(struct drm_device *dev, void *data,
1126                       struct drm_file *file_priv);
1127 int vmw_overlay_stop_all(struct vmw_private *dev_priv);
1128 int vmw_overlay_resume_all(struct vmw_private *dev_priv);
1129 int vmw_overlay_pause_all(struct vmw_private *dev_priv);
1130 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
1131 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
1132 int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
1133 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
1134 
1135 /**
1136  * GMR Id manager
1137  */
1138 
1139 extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func;
1140 
1141 /**
1142  * Prime - vmwgfx_prime.c
1143  */
1144 
1145 extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
1146 extern int vmw_prime_fd_to_handle(struct drm_device *dev,
1147                                   struct drm_file *file_priv,
1148                                   int fd, u32 *handle);
1149 extern int vmw_prime_handle_to_fd(struct drm_device *dev,
1150                                   struct drm_file *file_priv,
1151                                   uint32_t handle, uint32_t flags,
1152                                   int *prime_fd);
1153 
1154 /*
1155  * MemoryOBject management -  vmwgfx_mob.c
1156  */
1157 struct vmw_mob;
1158 extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob,
1159                         const struct vmw_sg_table *vsgt,
1160                         unsigned long num_data_pages, int32_t mob_id);
1161 extern void vmw_mob_unbind(struct vmw_private *dev_priv,
1162                            struct vmw_mob *mob);
1163 extern void vmw_mob_destroy(struct vmw_mob *mob);
1164 extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
1165 extern int vmw_otables_setup(struct vmw_private *dev_priv);
1166 extern void vmw_otables_takedown(struct vmw_private *dev_priv);
1167 
1168 /*
1169  * Context management - vmwgfx_context.c
1170  */
1171 
1172 extern const struct vmw_user_resource_conv *user_context_converter;
1173 
1174 extern int vmw_context_check(struct vmw_private *dev_priv,
1175                              struct ttm_object_file *tfile,
1176                              int id,
1177                              struct vmw_resource **p_res);
1178 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
1179                                     struct drm_file *file_priv);
1180 extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data,
1181                                              struct drm_file *file_priv);
1182 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
1183                                      struct drm_file *file_priv);
1184 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1185 extern struct vmw_cmdbuf_res_manager *
1186 vmw_context_res_man(struct vmw_resource *ctx);
1187 extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx,
1188                                                 SVGACOTableType cotable_type);
1189 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1190 struct vmw_ctx_binding_state;
1191 extern struct vmw_ctx_binding_state *
1192 vmw_context_binding_state(struct vmw_resource *ctx);
1193 extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx,
1194                                           bool readback);
1195 extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res,
1196                                      struct vmw_buffer_object *mob);
1197 extern struct vmw_buffer_object *
1198 vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res);
1199 
1200 
1201 /*
1202  * Surface management - vmwgfx_surface.c
1203  */
1204 
1205 extern const struct vmw_user_resource_conv *user_surface_converter;
1206 
1207 extern void vmw_surface_res_free(struct vmw_resource *res);
1208 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
1209                                      struct drm_file *file_priv);
1210 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
1211                                     struct drm_file *file_priv);
1212 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
1213                                        struct drm_file *file_priv);
1214 extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1215                                        struct drm_file *file_priv);
1216 extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1217                                           struct drm_file *file_priv);
1218 extern int vmw_surface_check(struct vmw_private *dev_priv,
1219                              struct ttm_object_file *tfile,
1220                              uint32_t handle, int *id);
1221 extern int vmw_surface_validate(struct vmw_private *dev_priv,
1222                                 struct vmw_surface *srf);
1223 int vmw_surface_gb_priv_define(struct drm_device *dev,
1224                                uint32_t user_accounting_size,
1225                                SVGA3dSurfaceAllFlags svga3d_flags,
1226                                SVGA3dSurfaceFormat format,
1227                                bool for_scanout,
1228                                uint32_t num_mip_levels,
1229                                uint32_t multisample_count,
1230                                uint32_t array_size,
1231                                struct drm_vmw_size size,
1232                                SVGA3dMSPattern multisample_pattern,
1233                                SVGA3dMSQualityLevel quality_level,
1234                                struct vmw_surface **srf_out);
1235 extern int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev,
1236                                            void *data,
1237                                            struct drm_file *file_priv);
1238 extern int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev,
1239                                               void *data,
1240                                               struct drm_file *file_priv);
1241 
1242 /*
1243  * Shader management - vmwgfx_shader.c
1244  */
1245 
1246 extern const struct vmw_user_resource_conv *user_shader_converter;
1247 
1248 extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
1249                                    struct drm_file *file_priv);
1250 extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
1251                                     struct drm_file *file_priv);
1252 extern int vmw_compat_shader_add(struct vmw_private *dev_priv,
1253                                  struct vmw_cmdbuf_res_manager *man,
1254                                  u32 user_key, const void *bytecode,
1255                                  SVGA3dShaderType shader_type,
1256                                  size_t size,
1257                                  struct list_head *list);
1258 extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man,
1259                              u32 user_key, SVGA3dShaderType shader_type,
1260                              struct list_head *list);
1261 extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man,
1262                              struct vmw_resource *ctx,
1263                              u32 user_key,
1264                              SVGA3dShaderType shader_type,
1265                              struct list_head *list);
1266 extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv,
1267                                              struct list_head *list,
1268                                              bool readback);
1269 
1270 extern struct vmw_resource *
1271 vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man,
1272                   u32 user_key, SVGA3dShaderType shader_type);
1273 
1274 /*
1275  * Command buffer managed resources - vmwgfx_cmdbuf_res.c
1276  */
1277 
1278 extern struct vmw_cmdbuf_res_manager *
1279 vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv);
1280 extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man);
1281 extern size_t vmw_cmdbuf_res_man_size(void);
1282 extern struct vmw_resource *
1283 vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man,
1284                       enum vmw_cmdbuf_res_type res_type,
1285                       u32 user_key);
1286 extern void vmw_cmdbuf_res_revert(struct list_head *list);
1287 extern void vmw_cmdbuf_res_commit(struct list_head *list);
1288 extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
1289                               enum vmw_cmdbuf_res_type res_type,
1290                               u32 user_key,
1291                               struct vmw_resource *res,
1292                               struct list_head *list);
1293 extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man,
1294                                  enum vmw_cmdbuf_res_type res_type,
1295                                  u32 user_key,
1296                                  struct list_head *list,
1297                                  struct vmw_resource **res);
1298 
1299 /*
1300  * COTable management - vmwgfx_cotable.c
1301  */
1302 extern const SVGACOTableType vmw_cotable_scrub_order[];
1303 extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv,
1304                                               struct vmw_resource *ctx,
1305                                               u32 type);
1306 extern int vmw_cotable_notify(struct vmw_resource *res, int id);
1307 extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback);
1308 extern void vmw_cotable_add_resource(struct vmw_resource *ctx,
1309                                      struct list_head *head);
1310 
1311 /*
1312  * Command buffer managerment vmwgfx_cmdbuf.c
1313  */
1314 struct vmw_cmdbuf_man;
1315 struct vmw_cmdbuf_header;
1316 
1317 extern struct vmw_cmdbuf_man *
1318 vmw_cmdbuf_man_create(struct vmw_private *dev_priv);
1319 extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man,
1320                                     size_t size, size_t default_size);
1321 extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man);
1322 extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man);
1323 extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible,
1324                            unsigned long timeout);
1325 extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size,
1326                                 int ctx_id, bool interruptible,
1327                                 struct vmw_cmdbuf_header *header);
1328 extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size,
1329                               struct vmw_cmdbuf_header *header,
1330                               bool flush);
1331 extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man,
1332                               size_t size, bool interruptible,
1333                               struct vmw_cmdbuf_header **p_header);
1334 extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header);
1335 extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man,
1336                                 bool interruptible);
1337 extern void vmw_cmdbuf_irqthread(struct vmw_cmdbuf_man *man);
1338 
1339 /* CPU blit utilities - vmwgfx_blit.c */
1340 
1341 /**
1342  * struct vmw_diff_cpy - CPU blit information structure
1343  *
1344  * @rect: The output bounding box rectangle.
1345  * @line: The current line of the blit.
1346  * @line_offset: Offset of the current line segment.
1347  * @cpp: Bytes per pixel (granularity information).
1348  * @memcpy: Which memcpy function to use.
1349  */
1350 struct vmw_diff_cpy {
1351         struct drm_rect rect;
1352         size_t line;
1353         size_t line_offset;
1354         int cpp;
1355         void (*do_cpy)(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1356                        size_t n);
1357 };
1358 
1359 #define VMW_CPU_BLIT_INITIALIZER {      \
1360         .do_cpy = vmw_memcpy,           \
1361 }
1362 
1363 #define VMW_CPU_BLIT_DIFF_INITIALIZER(_cpp) {     \
1364         .line = 0,                                \
1365         .line_offset = 0,                         \
1366         .rect = { .x1 = INT_MAX/2,                \
1367                   .y1 = INT_MAX/2,                \
1368                   .x2 = INT_MIN/2,                \
1369                   .y2 = INT_MIN/2                 \
1370         },                                        \
1371         .cpp = _cpp,                              \
1372         .do_cpy = vmw_diff_memcpy,                \
1373 }
1374 
1375 void vmw_diff_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1376                      size_t n);
1377 
1378 void vmw_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src, size_t n);
1379 
1380 int vmw_bo_cpu_blit(struct ttm_buffer_object *dst,
1381                     u32 dst_offset, u32 dst_stride,
1382                     struct ttm_buffer_object *src,
1383                     u32 src_offset, u32 src_stride,
1384                     u32 w, u32 h,
1385                     struct vmw_diff_cpy *diff);
1386 
1387 /* Host messaging -vmwgfx_msg.c: */
1388 int vmw_host_get_guestinfo(const char *guest_info_param,
1389                            char *buffer, size_t *length);
1390 int vmw_host_log(const char *log);
1391 
1392 /* VMW logging */
1393 
1394 /**
1395  * VMW_DEBUG_USER - Debug output for user-space debugging.
1396  *
1397  * @fmt: printf() like format string.
1398  *
1399  * This macro is for logging user-space error and debugging messages for e.g.
1400  * command buffer execution errors due to malformed commands, invalid context,
1401  * etc.
1402  */
1403 #define VMW_DEBUG_USER(fmt, ...)                                              \
1404         DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
1405 
1406 /**
1407  * VMW_DEBUG_KMS - Debug output for kernel mode-setting
1408  *
1409  * This macro is for debugging vmwgfx mode-setting code.
1410  */
1411 #define VMW_DEBUG_KMS(fmt, ...)                                               \
1412         DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
1413 
1414 /**
1415  * Inline helper functions
1416  */
1417 
1418 static inline void vmw_surface_unreference(struct vmw_surface **srf)
1419 {
1420         struct vmw_surface *tmp_srf = *srf;
1421         struct vmw_resource *res = &tmp_srf->res;
1422         *srf = NULL;
1423 
1424         vmw_resource_unreference(&res);
1425 }
1426 
1427 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
1428 {
1429         (void) vmw_resource_reference(&srf->res);
1430         return srf;
1431 }
1432 
1433 static inline void vmw_bo_unreference(struct vmw_buffer_object **buf)
1434 {
1435         struct vmw_buffer_object *tmp_buf = *buf;
1436 
1437         *buf = NULL;
1438         if (tmp_buf != NULL) {
1439                 ttm_bo_put(&tmp_buf->base);
1440         }
1441 }
1442 
1443 static inline struct vmw_buffer_object *
1444 vmw_bo_reference(struct vmw_buffer_object *buf)
1445 {
1446         ttm_bo_get(&buf->base);
1447         return buf;
1448 }
1449 
1450 static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
1451 {
1452         return &ttm_mem_glob;
1453 }
1454 
1455 static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv)
1456 {
1457         atomic_inc(&dev_priv->num_fifo_resources);
1458 }
1459 
1460 static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv)
1461 {
1462         atomic_dec(&dev_priv->num_fifo_resources);
1463 }
1464 
1465 /**
1466  * vmw_mmio_read - Perform a MMIO read from volatile memory
1467  *
1468  * @addr: The address to read from
1469  *
1470  * This function is intended to be equivalent to ioread32() on
1471  * memremap'd memory, but without byteswapping.
1472  */
1473 static inline u32 vmw_mmio_read(u32 *addr)
1474 {
1475         return READ_ONCE(*addr);
1476 }
1477 
1478 /**
1479  * vmw_mmio_write - Perform a MMIO write to volatile memory
1480  *
1481  * @addr: The address to write to
1482  *
1483  * This function is intended to be equivalent to iowrite32 on
1484  * memremap'd memory, but without byteswapping.
1485  */
1486 static inline void vmw_mmio_write(u32 value, u32 *addr)
1487 {
1488         WRITE_ONCE(*addr, value);
1489 }
1490 #endif
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root/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

INCLUDED FROM

DEFINITIONS
