drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

   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 "20200114"
  60 #define VMWGFX_DRIVER_MAJOR 2
  61 #define VMWGFX_DRIVER_MINOR 18
  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_MOB (TTM_PL_PRIV + 1)
  86
  87 #define VMW_RES_CONTEXT ttm_driver_type0
  88 #define VMW_RES_SURFACE ttm_driver_type1
  89 #define VMW_RES_STREAM ttm_driver_type2
  90 #define VMW_RES_FENCE ttm_driver_type3
  91 #define VMW_RES_SHADER ttm_driver_type4
  92
  93 struct vmw_fpriv {
  94         struct ttm_object_file *tfile;
  95         bool gb_aware; /* user-space is guest-backed aware */
  96 };
  97
  98 /**
  99  * struct vmw_buffer_object - TTM buffer object with vmwgfx additions
 100  * @base: The TTM buffer object
 101  * @res_tree: RB tree of resources using this buffer object as a backing MOB
 102  * @pin_count: pin depth
 103  * @cpu_writers: Number of synccpu write grabs. Protected by reservation when
 104  * increased. May be decreased without reservation.
 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  * @dirty: structure for user-space dirty-tracking
 109  */
 110 struct vmw_buffer_object {
 111         struct ttm_buffer_object base;
 112         struct rb_root res_tree;
 113         s32 pin_count;
 114         atomic_t cpu_writers;
 115         /* Not ref-counted.  Protected by binding_mutex */
 116         struct vmw_resource *dx_query_ctx;
 117         /* Protected by reservation */
 118         struct ttm_bo_kmap_obj map;
 119         u32 res_prios[TTM_MAX_BO_PRIORITY];
 120         struct vmw_bo_dirty *dirty;
 121 };
 122
 123 /**
 124  * struct vmw_validate_buffer - Carries validation info about buffers.
 125  *
 126  * @base: Validation info for TTM.
 127  * @hash: Hash entry for quick lookup of the TTM buffer object.
 128  *
 129  * This structure contains also driver private validation info
 130  * on top of the info needed by TTM.
 131  */
 132 struct vmw_validate_buffer {
 133         struct ttm_validate_buffer base;
 134         struct drm_hash_item hash;
 135         bool validate_as_mob;
 136 };
 137
 138 struct vmw_res_func;
 139
 140
 141 /**
 142  * struct vmw-resource - base class for hardware resources
 143  *
 144  * @kref: For refcounting.
 145  * @dev_priv: Pointer to the device private for this resource. Immutable.
 146  * @id: Device id. Protected by @dev_priv::resource_lock.
 147  * @backup_size: Backup buffer size. Immutable.
 148  * @res_dirty: Resource contains data not yet in the backup buffer. Protected
 149  * by resource reserved.
 150  * @backup_dirty: Backup buffer contains data not yet in the HW resource.
 151  * Protected by resource reserved.
 152  * @coherent: Emulate coherency by tracking vm accesses.
 153  * @backup: The backup buffer if any. Protected by resource reserved.
 154  * @backup_offset: Offset into the backup buffer if any. Protected by resource
 155  * reserved. Note that only a few resource types can have a @backup_offset
 156  * different from zero.
 157  * @pin_count: The pin count for this resource. A pinned resource has a
 158  * pin-count greater than zero. It is not on the resource LRU lists and its
 159  * backup buffer is pinned. Hence it can't be evicted.
 160  * @func: Method vtable for this resource. Immutable.
 161  * @mob_node; Node for the MOB backup rbtree. Protected by @backup reserved.
 162  * @lru_head: List head for the LRU list. Protected by @dev_priv::resource_lock.
 163  * @binding_head: List head for the context binding list. Protected by
 164  * the @dev_priv::binding_mutex
 165  * @res_free: The resource destructor.
 166  * @hw_destroy: Callback to destroy the resource on the device, as part of
 167  * resource destruction.
 168  */
 169 struct vmw_resource_dirty;
 170 struct vmw_resource {
 171         struct kref kref;
 172         struct vmw_private *dev_priv;
 173         int id;
 174         u32 used_prio;
 175         unsigned long backup_size;
 176         u32 res_dirty : 1;
 177         u32 backup_dirty : 1;
 178         u32 coherent : 1;
 179         struct vmw_buffer_object *backup;
 180         unsigned long backup_offset;
 181         unsigned long pin_count;
 182         const struct vmw_res_func *func;
 183         struct rb_node mob_node;
 184         struct list_head lru_head;
 185         struct list_head binding_head;
 186         struct vmw_resource_dirty *dirty;
 187         void (*res_free) (struct vmw_resource *res);
 188         void (*hw_destroy) (struct vmw_resource *res);
 189 };
 190
 191
 192 /*
 193  * Resources that are managed using ioctls.
 194  */
 195 enum vmw_res_type {
 196         vmw_res_context,
 197         vmw_res_surface,
 198         vmw_res_stream,
 199         vmw_res_shader,
 200         vmw_res_dx_context,
 201         vmw_res_cotable,
 202         vmw_res_view,
 203         vmw_res_streamoutput,
 204         vmw_res_max
 205 };
 206
 207 /*
 208  * Resources that are managed using command streams.
 209  */
 210 enum vmw_cmdbuf_res_type {
 211         vmw_cmdbuf_res_shader,
 212         vmw_cmdbuf_res_view,
 213         vmw_cmdbuf_res_streamoutput
 214 };
 215
 216 struct vmw_cmdbuf_res_manager;
 217
 218 struct vmw_cursor_snooper {
 219         size_t age;
 220         uint32_t *image;
 221 };
 222
 223 struct vmw_framebuffer;
 224 struct vmw_surface_offset;
 225
 226 /**
 227  * struct vmw_surface_metadata - Metadata describing a surface.
 228  *
 229  * @flags: Device flags.
 230  * @format: Surface SVGA3D_x format.
 231  * @mip_levels: Mip level for each face. For GB first index is used only.
 232  * @multisample_count: Sample count.
 233  * @multisample_pattern: Sample patterns.
 234  * @quality_level: Quality level.
 235  * @autogen_filter: Filter for automatically generated mipmaps.
 236  * @array_size: Number of array elements for a 1D/2D texture. For cubemap
 237                 texture number of faces * array_size. This should be 0 for pre
 238                 SM4 device.
 239  * @buffer_byte_stride: Buffer byte stride.
 240  * @num_sizes: Size of @sizes. For GB surface this should always be 1.
 241  * @base_size: Surface dimension.
 242  * @sizes: Array representing mip sizes. Legacy only.
 243  * @scanout: Whether this surface will be used for scanout.
 244  *
 245  * This tracks metadata for both legacy and guest backed surface.
 246  */
 247 struct vmw_surface_metadata {
 248         u64 flags;
 249         u32 format;
 250         u32 mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 251         u32 multisample_count;
 252         u32 multisample_pattern;
 253         u32 quality_level;
 254         u32 autogen_filter;
 255         u32 array_size;
 256         u32 num_sizes;
 257         u32 buffer_byte_stride;
 258         struct drm_vmw_size base_size;
 259         struct drm_vmw_size *sizes;
 260         bool scanout;
 261 };
 262
 263 /**
 264  * struct vmw_surface: Resource structure for a surface.
 265  *
 266  * @res: The base resource for this surface.
 267  * @metadata: Metadata for this surface resource.
 268  * @snooper: Cursor data. Legacy surface only.
 269  * @offsets: Legacy surface only.
 270  * @view_list: List of views bound to this surface.
 271  */
 272 struct vmw_surface {
 273         struct vmw_resource res;
 274         struct vmw_surface_metadata metadata;
 275         struct vmw_cursor_snooper snooper;
 276         struct vmw_surface_offset *offsets;
 277         struct list_head view_list;
 278 };
 279
 280 struct vmw_marker_queue {
 281         struct list_head head;
 282         u64 lag;
 283         u64 lag_time;
 284         spinlock_t lock;
 285 };
 286
 287 struct vmw_fifo_state {
 288         unsigned long reserved_size;
 289         u32 *dynamic_buffer;
 290         u32 *static_buffer;
 291         unsigned long static_buffer_size;
 292         bool using_bounce_buffer;
 293         uint32_t capabilities;
 294         struct mutex fifo_mutex;
 295         struct rw_semaphore rwsem;
 296         struct vmw_marker_queue marker_queue;
 297         bool dx;
 298 };
 299
 300 /**
 301  * struct vmw_res_cache_entry - resource information cache entry
 302  * @handle: User-space handle of a resource.
 303  * @res: Non-ref-counted pointer to the resource.
 304  * @valid_handle: Whether the @handle member is valid.
 305  * @valid: Whether the entry is valid, which also implies that the execbuf
 306  * code holds a reference to the resource, and it's placed on the
 307  * validation list.
 308  *
 309  * Used to avoid frequent repeated user-space handle lookups of the
 310  * same resource.
 311  */
 312 struct vmw_res_cache_entry {
 313         uint32_t handle;
 314         struct vmw_resource *res;
 315         void *private;
 316         unsigned short valid_handle;
 317         unsigned short valid;
 318 };
 319
 320 /**
 321  * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
 322  */
 323 enum vmw_dma_map_mode {
 324         vmw_dma_phys,           /* Use physical page addresses */
 325         vmw_dma_alloc_coherent, /* Use TTM coherent pages */
 326         vmw_dma_map_populate,   /* Unmap from DMA just after unpopulate */
 327         vmw_dma_map_bind,       /* Unmap from DMA just before unbind */
 328         vmw_dma_map_max
 329 };
 330
 331 /**
 332  * struct vmw_sg_table - Scatter/gather table for binding, with additional
 333  * device-specific information.
 334  *
 335  * @sgt: Pointer to a struct sg_table with binding information
 336  * @num_regions: Number of regions with device-address contiguous pages
 337  */
 338 struct vmw_sg_table {
 339         enum vmw_dma_map_mode mode;
 340         struct page **pages;
 341         const dma_addr_t *addrs;
 342         struct sg_table *sgt;
 343         unsigned long num_regions;
 344         unsigned long num_pages;
 345 };
 346
 347 /**
 348  * struct vmw_piter - Page iterator that iterates over a list of pages
 349  * and DMA addresses that could be either a scatter-gather list or
 350  * arrays
 351  *
 352  * @pages: Array of page pointers to the pages.
 353  * @addrs: DMA addresses to the pages if coherent pages are used.
 354  * @iter: Scatter-gather page iterator. Current position in SG list.
 355  * @i: Current position in arrays.
 356  * @num_pages: Number of pages total.
 357  * @next: Function to advance the iterator. Returns false if past the list
 358  * of pages, true otherwise.
 359  * @dma_address: Function to return the DMA address of the current page.
 360  */
 361 struct vmw_piter {
 362         struct page **pages;
 363         const dma_addr_t *addrs;
 364         struct sg_dma_page_iter iter;
 365         unsigned long i;
 366         unsigned long num_pages;
 367         bool (*next)(struct vmw_piter *);
 368         dma_addr_t (*dma_address)(struct vmw_piter *);
 369         struct page *(*page)(struct vmw_piter *);
 370 };
 371
 372 /*
 373  * enum vmw_display_unit_type - Describes the display unit
 374  */
 375 enum vmw_display_unit_type {
 376         vmw_du_invalid = 0,
 377         vmw_du_legacy,
 378         vmw_du_screen_object,
 379         vmw_du_screen_target
 380 };
 381
 382 struct vmw_validation_context;
 383 struct vmw_ctx_validation_info;
 384
 385 /**
 386  * struct vmw_sw_context - Command submission context
 387  * @res_ht: Pointer hash table used to find validation duplicates
 388  * @kernel: Whether the command buffer originates from kernel code rather
 389  * than from user-space
 390  * @fp: If @kernel is false, points to the file of the client. Otherwise
 391  * NULL
 392  * @cmd_bounce: Command bounce buffer used for command validation before
 393  * copying to fifo space
 394  * @cmd_bounce_size: Current command bounce buffer size
 395  * @cur_query_bo: Current buffer object used as query result buffer
 396  * @bo_relocations: List of buffer object relocations
 397  * @res_relocations: List of resource relocations
 398  * @buf_start: Pointer to start of memory where command validation takes
 399  * place
 400  * @res_cache: Cache of recently looked up resources
 401  * @last_query_ctx: Last context that submitted a query
 402  * @needs_post_query_barrier: Whether a query barrier is needed after
 403  * command submission
 404  * @staged_bindings: Cached per-context binding tracker
 405  * @staged_bindings_inuse: Whether the cached per-context binding tracker
 406  * is in use
 407  * @staged_cmd_res: List of staged command buffer managed resources in this
 408  * command buffer
 409  * @ctx_list: List of context resources referenced in this command buffer
 410  * @dx_ctx_node: Validation metadata of the current DX context
 411  * @dx_query_mob: The MOB used for DX queries
 412  * @dx_query_ctx: The DX context used for the last DX query
 413  * @man: Pointer to the command buffer managed resource manager
 414  * @ctx: The validation context
 415  */
 416 struct vmw_sw_context{
 417         struct drm_open_hash res_ht;
 418         bool res_ht_initialized;
 419         bool kernel;
 420         struct vmw_fpriv *fp;
 421         uint32_t *cmd_bounce;
 422         uint32_t cmd_bounce_size;
 423         struct vmw_buffer_object *cur_query_bo;
 424         struct list_head bo_relocations;
 425         struct list_head res_relocations;
 426         uint32_t *buf_start;
 427         struct vmw_res_cache_entry res_cache[vmw_res_max];
 428         struct vmw_resource *last_query_ctx;
 429         bool needs_post_query_barrier;
 430         struct vmw_ctx_binding_state *staged_bindings;
 431         bool staged_bindings_inuse;
 432         struct list_head staged_cmd_res;
 433         struct list_head ctx_list;
 434         struct vmw_ctx_validation_info *dx_ctx_node;
 435         struct vmw_buffer_object *dx_query_mob;
 436         struct vmw_resource *dx_query_ctx;
 437         struct vmw_cmdbuf_res_manager *man;
 438         struct vmw_validation_context *ctx;
 439 };
 440
 441 struct vmw_legacy_display;
 442 struct vmw_overlay;
 443
 444 struct vmw_vga_topology_state {
 445         uint32_t width;
 446         uint32_t height;
 447         uint32_t primary;
 448         uint32_t pos_x;
 449         uint32_t pos_y;
 450 };
 451
 452
 453 /*
 454  * struct vmw_otable - Guest Memory OBject table metadata
 455  *
 456  * @size:           Size of the table (page-aligned).
 457  * @page_table:     Pointer to a struct vmw_mob holding the page table.
 458  */
 459 struct vmw_otable {
 460         unsigned long size;
 461         struct vmw_mob *page_table;
 462         bool enabled;
 463 };
 464
 465 struct vmw_otable_batch {
 466         unsigned num_otables;
 467         struct vmw_otable *otables;
 468         struct vmw_resource *context;
 469         struct ttm_buffer_object *otable_bo;
 470 };
 471
 472 enum {
 473         VMW_IRQTHREAD_FENCE,
 474         VMW_IRQTHREAD_CMDBUF,
 475         VMW_IRQTHREAD_MAX
 476 };
 477
 478 /**
 479  * enum vmw_sm_type - Graphics context capability supported by device.
 480  * @VMW_SM_LEGACY: Pre DX context.
 481  * @VMW_SM_4: Context support upto SM4.
 482  * @VMW_SM_4_1: Context support upto SM4_1.
 483  * @VMW_SM_5: Context support up to SM5.
 484  * @VMW_SM_MAX: Should be the last.
 485  */
 486 enum vmw_sm_type {
 487         VMW_SM_LEGACY = 0,
 488         VMW_SM_4,
 489         VMW_SM_4_1,
 490         VMW_SM_5,
 491         VMW_SM_MAX
 492 };
 493
 494 struct vmw_private {
 495         struct ttm_bo_device bdev;
 496
 497         struct vmw_fifo_state fifo;
 498
 499         struct drm_device *dev;
 500         struct drm_vma_offset_manager vma_manager;
 501         unsigned long vmw_chipset;
 502         unsigned int io_start;
 503         uint32_t vram_start;
 504         uint32_t vram_size;
 505         uint32_t prim_bb_mem;
 506         uint32_t mmio_start;
 507         uint32_t mmio_size;
 508         uint32_t fb_max_width;
 509         uint32_t fb_max_height;
 510         uint32_t texture_max_width;
 511         uint32_t texture_max_height;
 512         uint32_t stdu_max_width;
 513         uint32_t stdu_max_height;
 514         uint32_t initial_width;
 515         uint32_t initial_height;
 516         u32 *mmio_virt;
 517         uint32_t capabilities;
 518         uint32_t capabilities2;
 519         uint32_t max_gmr_ids;
 520         uint32_t max_gmr_pages;
 521         uint32_t max_mob_pages;
 522         uint32_t max_mob_size;
 523         uint32_t memory_size;
 524         bool has_gmr;
 525         bool has_mob;
 526         spinlock_t hw_lock;
 527         spinlock_t cap_lock;
 528         bool assume_16bpp;
 529
 530         enum vmw_sm_type sm_type;
 531
 532         /*
 533          * Framebuffer info.
 534          */
 535
 536         void *fb_info;
 537         enum vmw_display_unit_type active_display_unit;
 538         struct vmw_legacy_display *ldu_priv;
 539         struct vmw_overlay *overlay_priv;
 540         struct drm_property *hotplug_mode_update_property;
 541         struct drm_property *implicit_placement_property;
 542         struct mutex global_kms_state_mutex;
 543         spinlock_t cursor_lock;
 544         struct drm_atomic_state *suspend_state;
 545
 546         /*
 547          * Context and surface management.
 548          */
 549
 550         spinlock_t resource_lock;
 551         struct idr res_idr[vmw_res_max];
 552
 553         /*
 554          * A resource manager for kernel-only surfaces and
 555          * contexts.
 556          */
 557
 558         struct ttm_object_device *tdev;
 559
 560         /*
 561          * Fencing and IRQs.
 562          */
 563
 564         atomic_t marker_seq;
 565         wait_queue_head_t fence_queue;
 566         wait_queue_head_t fifo_queue;
 567         spinlock_t waiter_lock;
 568         int fence_queue_waiters; /* Protected by waiter_lock */
 569         int goal_queue_waiters; /* Protected by waiter_lock */
 570         int cmdbuf_waiters; /* Protected by waiter_lock */
 571         int error_waiters; /* Protected by waiter_lock */
 572         int fifo_queue_waiters; /* Protected by waiter_lock */
 573         uint32_t last_read_seqno;
 574         struct vmw_fence_manager *fman;
 575         uint32_t irq_mask; /* Updates protected by waiter_lock */
 576
 577         /*
 578          * Device state
 579          */
 580
 581         uint32_t traces_state;
 582         uint32_t enable_state;
 583         uint32_t config_done_state;
 584
 585         /**
 586          * Execbuf
 587          */
 588         /**
 589          * Protected by the cmdbuf mutex.
 590          */
 591
 592         struct vmw_sw_context ctx;
 593         struct mutex cmdbuf_mutex;
 594         struct mutex binding_mutex;
 595
 596         /**
 597          * Operating mode.
 598          */
 599
 600         bool stealth;
 601         bool enable_fb;
 602         spinlock_t svga_lock;
 603
 604         /**
 605          * PM management.
 606          */
 607         struct notifier_block pm_nb;
 608         bool refuse_hibernation;
 609         bool suspend_locked;
 610
 611         struct mutex release_mutex;
 612         atomic_t num_fifo_resources;
 613
 614         /*
 615          * Replace this with an rwsem as soon as we have down_xx_interruptible()
 616          */
 617         struct ttm_lock reservation_sem;
 618
 619         /*
 620          * Query processing. These members
 621          * are protected by the cmdbuf mutex.
 622          */
 623
 624         struct vmw_buffer_object *dummy_query_bo;
 625         struct vmw_buffer_object *pinned_bo;
 626         uint32_t query_cid;
 627         uint32_t query_cid_valid;
 628         bool dummy_query_bo_pinned;
 629
 630         /*
 631          * Surface swapping. The "surface_lru" list is protected by the
 632          * resource lock in order to be able to destroy a surface and take
 633          * it off the lru atomically. "used_memory_size" is currently
 634          * protected by the cmdbuf mutex for simplicity.
 635          */
 636
 637         struct list_head res_lru[vmw_res_max];
 638         uint32_t used_memory_size;
 639
 640         /*
 641          * DMA mapping stuff.
 642          */
 643         enum vmw_dma_map_mode map_mode;
 644
 645         /*
 646          * Guest Backed stuff
 647          */
 648         struct vmw_otable_batch otable_batch;
 649
 650         struct vmw_cmdbuf_man *cman;
 651         DECLARE_BITMAP(irqthread_pending, VMW_IRQTHREAD_MAX);
 652
 653         /* Validation memory reservation */
 654         struct vmw_validation_mem vvm;
 655 };
 656
 657 static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
 658 {
 659         return container_of(res, struct vmw_surface, res);
 660 }
 661
 662 static inline struct vmw_private *vmw_priv(struct drm_device *dev)
 663 {
 664         return (struct vmw_private *)dev->dev_private;
 665 }
 666
 667 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
 668 {
 669         return (struct vmw_fpriv *)file_priv->driver_priv;
 670 }
 671
 672 /*
 673  * The locking here is fine-grained, so that it is performed once
 674  * for every read- and write operation. This is of course costly, but we
 675  * don't perform much register access in the timing critical paths anyway.
 676  * Instead we have the extra benefit of being sure that we don't forget
 677  * the hw lock around register accesses.
 678  */
 679 static inline void vmw_write(struct vmw_private *dev_priv,
 680                              unsigned int offset, uint32_t value)
 681 {
 682         spin_lock(&dev_priv->hw_lock);
 683         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 684         outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
 685         spin_unlock(&dev_priv->hw_lock);
 686 }
 687
 688 static inline uint32_t vmw_read(struct vmw_private *dev_priv,
 689                                 unsigned int offset)
 690 {
 691         u32 val;
 692
 693         spin_lock(&dev_priv->hw_lock);
 694         outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
 695         val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
 696         spin_unlock(&dev_priv->hw_lock);
 697
 698         return val;
 699 }
 700
 701 /**
 702  * has_sm4_context - Does the device support SM4 context.
 703  * @dev_priv: Device private.
 704  *
 705  * Return: Bool value if device support SM4 context or not.
 706  */
 707 static inline bool has_sm4_context(const struct vmw_private *dev_priv)
 708 {
 709         return (dev_priv->sm_type >= VMW_SM_4);
 710 }
 711
 712 /**
 713  * has_sm4_1_context - Does the device support SM4_1 context.
 714  * @dev_priv: Device private.
 715  *
 716  * Return: Bool value if device support SM4_1 context or not.
 717  */
 718 static inline bool has_sm4_1_context(const struct vmw_private *dev_priv)
 719 {
 720         return (dev_priv->sm_type >= VMW_SM_4_1);
 721 }
 722
 723 /**
 724  * has_sm5_context - Does the device support SM5 context.
 725  * @dev_priv: Device private.
 726  *
 727  * Return: Bool value if device support SM5 context or not.
 728  */
 729 static inline bool has_sm5_context(const struct vmw_private *dev_priv)
 730 {
 731         return (dev_priv->sm_type >= VMW_SM_5);
 732 }
 733
 734 extern void vmw_svga_enable(struct vmw_private *dev_priv);
 735 extern void vmw_svga_disable(struct vmw_private *dev_priv);
 736
 737
 738 /**
 739  * GMR utilities - vmwgfx_gmr.c
 740  */
 741
 742 extern int vmw_gmr_bind(struct vmw_private *dev_priv,
 743                         const struct vmw_sg_table *vsgt,
 744                         unsigned long num_pages,
 745                         int gmr_id);
 746 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
 747
 748 /**
 749  * Resource utilities - vmwgfx_resource.c
 750  */
 751 struct vmw_user_resource_conv;
 752
 753 extern void vmw_resource_unreference(struct vmw_resource **p_res);
 754 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
 755 extern struct vmw_resource *
 756 vmw_resource_reference_unless_doomed(struct vmw_resource *res);
 757 extern int vmw_resource_validate(struct vmw_resource *res, bool intr,
 758                                  bool dirtying);
 759 extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
 760                                 bool no_backup);
 761 extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
 762 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
 763                                   struct ttm_object_file *tfile,
 764                                   uint32_t handle,
 765                                   struct vmw_surface **out_surf,
 766                                   struct vmw_buffer_object **out_buf);
 767 extern int vmw_user_resource_lookup_handle(
 768         struct vmw_private *dev_priv,
 769         struct ttm_object_file *tfile,
 770         uint32_t handle,
 771         const struct vmw_user_resource_conv *converter,
 772         struct vmw_resource **p_res);
 773 extern struct vmw_resource *
 774 vmw_user_resource_noref_lookup_handle(struct vmw_private *dev_priv,
 775                                       struct ttm_object_file *tfile,
 776                                       uint32_t handle,
 777                                       const struct vmw_user_resource_conv *
 778                                       converter);
 779 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
 780                                   struct drm_file *file_priv);
 781 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
 782                                   struct drm_file *file_priv);
 783 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
 784                                   struct ttm_object_file *tfile,
 785                                   uint32_t *inout_id,
 786                                   struct vmw_resource **out);
 787 extern void vmw_resource_unreserve(struct vmw_resource *res,
 788                                    bool dirty_set,
 789                                    bool dirty,
 790                                    bool switch_backup,
 791                                    struct vmw_buffer_object *new_backup,
 792                                    unsigned long new_backup_offset);
 793 extern void vmw_query_move_notify(struct ttm_buffer_object *bo,
 794                                   struct ttm_resource *mem);
 795 extern int vmw_query_readback_all(struct vmw_buffer_object *dx_query_mob);
 796 extern void vmw_resource_evict_all(struct vmw_private *dev_priv);
 797 extern void vmw_resource_unbind_list(struct vmw_buffer_object *vbo);
 798 void vmw_resource_mob_attach(struct vmw_resource *res);
 799 void vmw_resource_mob_detach(struct vmw_resource *res);
 800 void vmw_resource_dirty_update(struct vmw_resource *res, pgoff_t start,
 801                                pgoff_t end);
 802 int vmw_resources_clean(struct vmw_buffer_object *vbo, pgoff_t start,
 803                         pgoff_t end, pgoff_t *num_prefault);
 804
 805 /**
 806  * vmw_resource_mob_attached - Whether a resource currently has a mob attached
 807  * @res: The resource
 808  *
 809  * Return: true if the resource has a mob attached, false otherwise.
 810  */
 811 static inline bool vmw_resource_mob_attached(const struct vmw_resource *res)
 812 {
 813         return !RB_EMPTY_NODE(&res->mob_node);
 814 }
 815
 816 /**
 817  * vmw_user_resource_noref_release - release a user resource pointer looked up
 818  * without reference
 819  */
 820 static inline void vmw_user_resource_noref_release(void)
 821 {
 822         ttm_base_object_noref_release();
 823 }
 824
 825 /**
 826  * Buffer object helper functions - vmwgfx_bo.c
 827  */
 828 extern int vmw_bo_pin_in_placement(struct vmw_private *vmw_priv,
 829                                    struct vmw_buffer_object *bo,
 830                                    struct ttm_placement *placement,
 831                                    bool interruptible);
 832 extern int vmw_bo_pin_in_vram(struct vmw_private *dev_priv,
 833                               struct vmw_buffer_object *buf,
 834                               bool interruptible);
 835 extern int vmw_bo_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
 836                                      struct vmw_buffer_object *buf,
 837                                      bool interruptible);
 838 extern int vmw_bo_pin_in_start_of_vram(struct vmw_private *vmw_priv,
 839                                        struct vmw_buffer_object *bo,
 840                                        bool interruptible);
 841 extern int vmw_bo_unpin(struct vmw_private *vmw_priv,
 842                         struct vmw_buffer_object *bo,
 843                         bool interruptible);
 844 extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
 845                                  SVGAGuestPtr *ptr);
 846 extern void vmw_bo_pin_reserved(struct vmw_buffer_object *bo, bool pin);
 847 extern void vmw_bo_bo_free(struct ttm_buffer_object *bo);
 848 extern int vmw_bo_init(struct vmw_private *dev_priv,
 849                        struct vmw_buffer_object *vmw_bo,
 850                        size_t size, struct ttm_placement *placement,
 851                        bool interruptible,
 852                        void (*bo_free)(struct ttm_buffer_object *bo));
 853 extern int vmw_user_bo_verify_access(struct ttm_buffer_object *bo,
 854                                      struct ttm_object_file *tfile);
 855 extern int vmw_user_bo_alloc(struct vmw_private *dev_priv,
 856                              struct ttm_object_file *tfile,
 857                              uint32_t size,
 858                              bool shareable,
 859                              uint32_t *handle,
 860                              struct vmw_buffer_object **p_dma_buf,
 861                              struct ttm_base_object **p_base);
 862 extern int vmw_user_bo_reference(struct ttm_object_file *tfile,
 863                                  struct vmw_buffer_object *dma_buf,
 864                                  uint32_t *handle);
 865 extern int vmw_bo_alloc_ioctl(struct drm_device *dev, void *data,
 866                               struct drm_file *file_priv);
 867 extern int vmw_bo_unref_ioctl(struct drm_device *dev, void *data,
 868                               struct drm_file *file_priv);
 869 extern int vmw_user_bo_synccpu_ioctl(struct drm_device *dev, void *data,
 870                                      struct drm_file *file_priv);
 871 extern int vmw_user_bo_lookup(struct ttm_object_file *tfile,
 872                               uint32_t id, struct vmw_buffer_object **out,
 873                               struct ttm_base_object **base);
 874 extern void vmw_bo_fence_single(struct ttm_buffer_object *bo,
 875                                 struct vmw_fence_obj *fence);
 876 extern void *vmw_bo_map_and_cache(struct vmw_buffer_object *vbo);
 877 extern void vmw_bo_unmap(struct vmw_buffer_object *vbo);
 878 extern void vmw_bo_move_notify(struct ttm_buffer_object *bo,
 879                                struct ttm_resource *mem);
 880 extern void vmw_bo_swap_notify(struct ttm_buffer_object *bo);
 881 extern struct vmw_buffer_object *
 882 vmw_user_bo_noref_lookup(struct ttm_object_file *tfile, u32 handle);
 883
 884 /**
 885  * vmw_user_bo_noref_release - release a buffer object pointer looked up
 886  * without reference
 887  */
 888 static inline void vmw_user_bo_noref_release(void)
 889 {
 890         ttm_base_object_noref_release();
 891 }
 892
 893 /**
 894  * vmw_bo_adjust_prio - Adjust the buffer object eviction priority
 895  * according to attached resources
 896  * @vbo: The struct vmw_buffer_object
 897  */
 898 static inline void vmw_bo_prio_adjust(struct vmw_buffer_object *vbo)
 899 {
 900         int i = ARRAY_SIZE(vbo->res_prios);
 901
 902         while (i--) {
 903                 if (vbo->res_prios[i]) {
 904                         vbo->base.priority = i;
 905                         return;
 906                 }
 907         }
 908
 909         vbo->base.priority = 3;
 910 }
 911
 912 /**
 913  * vmw_bo_prio_add - Notify a buffer object of a newly attached resource
 914  * eviction priority
 915  * @vbo: The struct vmw_buffer_object
 916  * @prio: The resource priority
 917  *
 918  * After being notified, the code assigns the highest resource eviction priority
 919  * to the backing buffer object (mob).
 920  */
 921 static inline void vmw_bo_prio_add(struct vmw_buffer_object *vbo, int prio)
 922 {
 923         if (vbo->res_prios[prio]++ == 0)
 924                 vmw_bo_prio_adjust(vbo);
 925 }
 926
 927 /**
 928  * vmw_bo_prio_del - Notify a buffer object of a resource with a certain
 929  * priority being removed
 930  * @vbo: The struct vmw_buffer_object
 931  * @prio: The resource priority
 932  *
 933  * After being notified, the code assigns the highest resource eviction priority
 934  * to the backing buffer object (mob).
 935  */
 936 static inline void vmw_bo_prio_del(struct vmw_buffer_object *vbo, int prio)
 937 {
 938         if (--vbo->res_prios[prio] == 0)
 939                 vmw_bo_prio_adjust(vbo);
 940 }
 941
 942 /**
 943  * Misc Ioctl functionality - vmwgfx_ioctl.c
 944  */
 945
 946 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 947                               struct drm_file *file_priv);
 948 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
 949                                 struct drm_file *file_priv);
 950 extern int vmw_present_ioctl(struct drm_device *dev, void *data,
 951                              struct drm_file *file_priv);
 952 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
 953                                       struct drm_file *file_priv);
 954 extern __poll_t vmw_fops_poll(struct file *filp,
 955                                   struct poll_table_struct *wait);
 956 extern ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
 957                              size_t count, loff_t *offset);
 958
 959 /**
 960  * Fifo utilities - vmwgfx_fifo.c
 961  */
 962
 963 extern int vmw_fifo_init(struct vmw_private *dev_priv,
 964                          struct vmw_fifo_state *fifo);
 965 extern void vmw_fifo_release(struct vmw_private *dev_priv,
 966                              struct vmw_fifo_state *fifo);
 967 extern void *
 968 vmw_fifo_reserve_dx(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id);
 969 extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
 970 extern void vmw_fifo_commit_flush(struct vmw_private *dev_priv, uint32_t bytes);
 971 extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
 972                                uint32_t *seqno);
 973 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 974 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
 975 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
 976 extern int vmw_fifo_emit_dummy_query(struct vmw_private *dev_priv,
 977                                      uint32_t cid);
 978 extern int vmw_fifo_flush(struct vmw_private *dev_priv,
 979                           bool interruptible);
 980
 981 #define VMW_FIFO_RESERVE_DX(__priv, __bytes, __ctx_id)                        \
 982 ({                                                                            \
 983         vmw_fifo_reserve_dx(__priv, __bytes, __ctx_id) ? : ({                 \
 984                 DRM_ERROR("FIFO reserve failed at %s for %u bytes\n",         \
 985                           __func__, (unsigned int) __bytes);                  \
 986                 NULL;                                                         \
 987         });                                                                   \
 988 })
 989
 990 #define VMW_FIFO_RESERVE(__priv, __bytes)                                     \
 991         VMW_FIFO_RESERVE_DX(__priv, __bytes, SVGA3D_INVALID_ID)
 992
 993 /**
 994  * TTM glue - vmwgfx_ttm_glue.c
 995  */
 996
 997 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 998
 999 extern void vmw_validation_mem_init_ttm(struct vmw_private *dev_priv,
1000                                         size_t gran);
1001
1002 /**
1003  * TTM buffer object driver - vmwgfx_ttm_buffer.c
1004  */
1005
1006 extern const size_t vmw_tt_size;
1007 extern struct ttm_placement vmw_vram_placement;
1008 extern struct ttm_placement vmw_vram_ne_placement;
1009 extern struct ttm_placement vmw_vram_sys_placement;
1010 extern struct ttm_placement vmw_vram_gmr_placement;
1011 extern struct ttm_placement vmw_sys_placement;
1012 extern struct ttm_placement vmw_sys_ne_placement;
1013 extern struct ttm_placement vmw_evictable_placement;
1014 extern struct ttm_placement vmw_srf_placement;
1015 extern struct ttm_placement vmw_mob_placement;
1016 extern struct ttm_placement vmw_mob_ne_placement;
1017 extern struct ttm_placement vmw_nonfixed_placement;
1018 extern struct ttm_bo_driver vmw_bo_driver;
1019 extern const struct vmw_sg_table *
1020 vmw_bo_sg_table(struct ttm_buffer_object *bo);
1021 extern int vmw_bo_create_and_populate(struct vmw_private *dev_priv,
1022                                       unsigned long bo_size,
1023                                       struct ttm_buffer_object **bo_p);
1024
1025 extern void vmw_piter_start(struct vmw_piter *viter,
1026                             const struct vmw_sg_table *vsgt,
1027                             unsigned long p_offs);
1028
1029 /**
1030  * vmw_piter_next - Advance the iterator one page.
1031  *
1032  * @viter: Pointer to the iterator to advance.
1033  *
1034  * Returns false if past the list of pages, true otherwise.
1035  */
1036 static inline bool vmw_piter_next(struct vmw_piter *viter)
1037 {
1038         return viter->next(viter);
1039 }
1040
1041 /**
1042  * vmw_piter_dma_addr - Return the DMA address of the current page.
1043  *
1044  * @viter: Pointer to the iterator
1045  *
1046  * Returns the DMA address of the page pointed to by @viter.
1047  */
1048 static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter)
1049 {
1050         return viter->dma_address(viter);
1051 }
1052
1053 /**
1054  * vmw_piter_page - Return a pointer to the current page.
1055  *
1056  * @viter: Pointer to the iterator
1057  *
1058  * Returns the DMA address of the page pointed to by @viter.
1059  */
1060 static inline struct page *vmw_piter_page(struct vmw_piter *viter)
1061 {
1062         return viter->page(viter);
1063 }
1064
1065 /**
1066  * Command submission - vmwgfx_execbuf.c
1067  */
1068
1069 extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
1070                              struct drm_file *file_priv);
1071 extern int vmw_execbuf_process(struct drm_file *file_priv,
1072                                struct vmw_private *dev_priv,
1073                                void __user *user_commands,
1074                                void *kernel_commands,
1075                                uint32_t command_size,
1076                                uint64_t throttle_us,
1077                                uint32_t dx_context_handle,
1078                                struct drm_vmw_fence_rep __user
1079                                *user_fence_rep,
1080                                struct vmw_fence_obj **out_fence,
1081                                uint32_t flags);
1082 extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
1083                                             struct vmw_fence_obj *fence);
1084 extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);
1085
1086 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
1087                                       struct vmw_private *dev_priv,
1088                                       struct vmw_fence_obj **p_fence,
1089                                       uint32_t *p_handle);
1090 extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
1091                                         struct vmw_fpriv *vmw_fp,
1092                                         int ret,
1093                                         struct drm_vmw_fence_rep __user
1094                                         *user_fence_rep,
1095                                         struct vmw_fence_obj *fence,
1096                                         uint32_t fence_handle,
1097                                         int32_t out_fence_fd,
1098                                         struct sync_file *sync_file);
1099 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd);
1100
1101 /**
1102  * IRQs and wating - vmwgfx_irq.c
1103  */
1104
1105 extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
1106                           uint32_t seqno, bool interruptible,
1107                           unsigned long timeout);
1108 extern int vmw_irq_install(struct drm_device *dev, int irq);
1109 extern void vmw_irq_uninstall(struct drm_device *dev);
1110 extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
1111                                 uint32_t seqno);
1112 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
1113                              bool lazy,
1114                              bool fifo_idle,
1115                              uint32_t seqno,
1116                              bool interruptible,
1117                              unsigned long timeout);
1118 extern void vmw_update_seqno(struct vmw_private *dev_priv,
1119                                 struct vmw_fifo_state *fifo_state);
1120 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
1121 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
1122 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
1123 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
1124 extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag,
1125                                    int *waiter_count);
1126 extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv,
1127                                       u32 flag, int *waiter_count);
1128
1129 /**
1130  * Rudimentary fence-like objects currently used only for throttling -
1131  * vmwgfx_marker.c
1132  */
1133
1134 extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
1135 extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
1136 extern int vmw_marker_push(struct vmw_marker_queue *queue,
1137                            uint32_t seqno);
1138 extern int vmw_marker_pull(struct vmw_marker_queue *queue,
1139                            uint32_t signaled_seqno);
1140 extern int vmw_wait_lag(struct vmw_private *dev_priv,
1141                         struct vmw_marker_queue *queue, uint32_t us);
1142
1143 /**
1144  * Kernel framebuffer - vmwgfx_fb.c
1145  */
1146
1147 int vmw_fb_init(struct vmw_private *vmw_priv);
1148 int vmw_fb_close(struct vmw_private *dev_priv);
1149 int vmw_fb_off(struct vmw_private *vmw_priv);
1150 int vmw_fb_on(struct vmw_private *vmw_priv);
1151
1152 /**
1153  * Kernel modesetting - vmwgfx_kms.c
1154  */
1155
1156 int vmw_kms_init(struct vmw_private *dev_priv);
1157 int vmw_kms_close(struct vmw_private *dev_priv);
1158 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1159                                 struct drm_file *file_priv);
1160 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
1161 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
1162                           struct ttm_object_file *tfile,
1163                           struct ttm_buffer_object *bo,
1164                           SVGA3dCmdHeader *header);
1165 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1166                        unsigned width, unsigned height, unsigned pitch,
1167                        unsigned bpp, unsigned depth);
1168 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1169                                 uint32_t pitch,
1170                                 uint32_t height);
1171 u32 vmw_get_vblank_counter(struct drm_crtc *crtc);
1172 int vmw_enable_vblank(struct drm_crtc *crtc);
1173 void vmw_disable_vblank(struct drm_crtc *crtc);
1174 int vmw_kms_present(struct vmw_private *dev_priv,
1175                     struct drm_file *file_priv,
1176                     struct vmw_framebuffer *vfb,
1177                     struct vmw_surface *surface,
1178                     uint32_t sid, int32_t destX, int32_t destY,
1179                     struct drm_vmw_rect *clips,
1180                     uint32_t num_clips);
1181 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1182                                 struct drm_file *file_priv);
1183 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
1184 int vmw_kms_suspend(struct drm_device *dev);
1185 int vmw_kms_resume(struct drm_device *dev);
1186 void vmw_kms_lost_device(struct drm_device *dev);
1187
1188 int vmw_dumb_create(struct drm_file *file_priv,
1189                     struct drm_device *dev,
1190                     struct drm_mode_create_dumb *args);
1191
1192 int vmw_dumb_map_offset(struct drm_file *file_priv,
1193                         struct drm_device *dev, uint32_t handle,
1194                         uint64_t *offset);
1195 int vmw_dumb_destroy(struct drm_file *file_priv,
1196                      struct drm_device *dev,
1197                      uint32_t handle);
1198 extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible);
1199 extern void vmw_resource_unpin(struct vmw_resource *res);
1200 extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res);
1201
1202 /**
1203  * Overlay control - vmwgfx_overlay.c
1204  */
1205
1206 int vmw_overlay_init(struct vmw_private *dev_priv);
1207 int vmw_overlay_close(struct vmw_private *dev_priv);
1208 int vmw_overlay_ioctl(struct drm_device *dev, void *data,
1209                       struct drm_file *file_priv);
1210 int vmw_overlay_resume_all(struct vmw_private *dev_priv);
1211 int vmw_overlay_pause_all(struct vmw_private *dev_priv);
1212 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
1213 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
1214 int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
1215 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
1216
1217 /**
1218  * GMR Id manager
1219  */
1220
1221 int vmw_gmrid_man_init(struct vmw_private *dev_priv, int type);
1222 void vmw_gmrid_man_fini(struct vmw_private *dev_priv, int type);
1223
1224 /**
1225  * Prime - vmwgfx_prime.c
1226  */
1227
1228 extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
1229 extern int vmw_prime_fd_to_handle(struct drm_device *dev,
1230                                   struct drm_file *file_priv,
1231                                   int fd, u32 *handle);
1232 extern int vmw_prime_handle_to_fd(struct drm_device *dev,
1233                                   struct drm_file *file_priv,
1234                                   uint32_t handle, uint32_t flags,
1235                                   int *prime_fd);
1236
1237 /*
1238  * MemoryOBject management -  vmwgfx_mob.c
1239  */
1240 struct vmw_mob;
1241 extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob,
1242                         const struct vmw_sg_table *vsgt,
1243                         unsigned long num_data_pages, int32_t mob_id);
1244 extern void vmw_mob_unbind(struct vmw_private *dev_priv,
1245                            struct vmw_mob *mob);
1246 extern void vmw_mob_destroy(struct vmw_mob *mob);
1247 extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
1248 extern int vmw_otables_setup(struct vmw_private *dev_priv);
1249 extern void vmw_otables_takedown(struct vmw_private *dev_priv);
1250
1251 /*
1252  * Context management - vmwgfx_context.c
1253  */
1254
1255 extern const struct vmw_user_resource_conv *user_context_converter;
1256
1257 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
1258                                     struct drm_file *file_priv);
1259 extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data,
1260                                              struct drm_file *file_priv);
1261 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
1262                                      struct drm_file *file_priv);
1263 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1264 extern struct vmw_cmdbuf_res_manager *
1265 vmw_context_res_man(struct vmw_resource *ctx);
1266 extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx,
1267                                                 SVGACOTableType cotable_type);
1268 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1269 struct vmw_ctx_binding_state;
1270 extern struct vmw_ctx_binding_state *
1271 vmw_context_binding_state(struct vmw_resource *ctx);
1272 extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx,
1273                                           bool readback);
1274 extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res,
1275                                      struct vmw_buffer_object *mob);
1276 extern struct vmw_buffer_object *
1277 vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res);
1278
1279
1280 /*
1281  * Surface management - vmwgfx_surface.c
1282  */
1283
1284 extern const struct vmw_user_resource_conv *user_surface_converter;
1285
1286 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
1287                                      struct drm_file *file_priv);
1288 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
1289                                     struct drm_file *file_priv);
1290 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
1291                                        struct drm_file *file_priv);
1292 extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1293                                        struct drm_file *file_priv);
1294 extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1295                                           struct drm_file *file_priv);
1296 int vmw_surface_gb_priv_define(struct drm_device *dev,
1297                                uint32_t user_accounting_size,
1298                                SVGA3dSurfaceAllFlags svga3d_flags,
1299                                SVGA3dSurfaceFormat format,
1300                                bool for_scanout,
1301                                uint32_t num_mip_levels,
1302                                uint32_t multisample_count,
1303                                uint32_t array_size,
1304                                struct drm_vmw_size size,
1305                                SVGA3dMSPattern multisample_pattern,
1306                                SVGA3dMSQualityLevel quality_level,
1307                                struct vmw_surface **srf_out);
1308 extern int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev,
1309                                            void *data,
1310                                            struct drm_file *file_priv);
1311 extern int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev,
1312                                               void *data,
1313                                               struct drm_file *file_priv);
1314
1315 int vmw_gb_surface_define(struct vmw_private *dev_priv,
1316                           uint32_t user_accounting_size,
1317                           const struct vmw_surface_metadata *req,
1318                           struct vmw_surface **srf_out);
1319
1320 /*
1321  * Shader management - vmwgfx_shader.c
1322  */
1323
1324 extern const struct vmw_user_resource_conv *user_shader_converter;
1325
1326 extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
1327                                    struct drm_file *file_priv);
1328 extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
1329                                     struct drm_file *file_priv);
1330 extern int vmw_compat_shader_add(struct vmw_private *dev_priv,
1331                                  struct vmw_cmdbuf_res_manager *man,
1332                                  u32 user_key, const void *bytecode,
1333                                  SVGA3dShaderType shader_type,
1334                                  size_t size,
1335                                  struct list_head *list);
1336 extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man,
1337                              u32 user_key, SVGA3dShaderType shader_type,
1338                              struct list_head *list);
1339 extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man,
1340                              struct vmw_resource *ctx,
1341                              u32 user_key,
1342                              SVGA3dShaderType shader_type,
1343                              struct list_head *list);
1344 extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv,
1345                                              struct list_head *list,
1346                                              bool readback);
1347
1348 extern struct vmw_resource *
1349 vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man,
1350                   u32 user_key, SVGA3dShaderType shader_type);
1351
1352 /*
1353  * Streamoutput management
1354  */
1355 struct vmw_resource *
1356 vmw_dx_streamoutput_lookup(struct vmw_cmdbuf_res_manager *man,
1357                            u32 user_key);
1358 int vmw_dx_streamoutput_add(struct vmw_cmdbuf_res_manager *man,
1359                             struct vmw_resource *ctx,
1360                             SVGA3dStreamOutputId user_key,
1361                             struct list_head *list);
1362 void vmw_dx_streamoutput_set_size(struct vmw_resource *res, u32 size);
1363 int vmw_dx_streamoutput_remove(struct vmw_cmdbuf_res_manager *man,
1364                                SVGA3dStreamOutputId user_key,
1365                                struct list_head *list);
1366 void vmw_dx_streamoutput_cotable_list_scrub(struct vmw_private *dev_priv,
1367                                             struct list_head *list,
1368                                             bool readback);
1369
1370 /*
1371  * Command buffer managed resources - vmwgfx_cmdbuf_res.c
1372  */
1373
1374 extern struct vmw_cmdbuf_res_manager *
1375 vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv);
1376 extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man);
1377 extern size_t vmw_cmdbuf_res_man_size(void);
1378 extern struct vmw_resource *
1379 vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man,
1380                       enum vmw_cmdbuf_res_type res_type,
1381                       u32 user_key);
1382 extern void vmw_cmdbuf_res_revert(struct list_head *list);
1383 extern void vmw_cmdbuf_res_commit(struct list_head *list);
1384 extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
1385                               enum vmw_cmdbuf_res_type res_type,
1386                               u32 user_key,
1387                               struct vmw_resource *res,
1388                               struct list_head *list);
1389 extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man,
1390                                  enum vmw_cmdbuf_res_type res_type,
1391                                  u32 user_key,
1392                                  struct list_head *list,
1393                                  struct vmw_resource **res);
1394
1395 /*
1396  * COTable management - vmwgfx_cotable.c
1397  */
1398 extern const SVGACOTableType vmw_cotable_scrub_order[];
1399 extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv,
1400                                               struct vmw_resource *ctx,
1401                                               u32 type);
1402 extern int vmw_cotable_notify(struct vmw_resource *res, int id);
1403 extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback);
1404 extern void vmw_cotable_add_resource(struct vmw_resource *ctx,
1405                                      struct list_head *head);
1406
1407 /*
1408  * Command buffer managerment vmwgfx_cmdbuf.c
1409  */
1410 struct vmw_cmdbuf_man;
1411 struct vmw_cmdbuf_header;
1412
1413 extern struct vmw_cmdbuf_man *
1414 vmw_cmdbuf_man_create(struct vmw_private *dev_priv);
1415 extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man,
1416                                     size_t size, size_t default_size);
1417 extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man);
1418 extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man);
1419 extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible,
1420                            unsigned long timeout);
1421 extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size,
1422                                 int ctx_id, bool interruptible,
1423                                 struct vmw_cmdbuf_header *header);
1424 extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size,
1425                               struct vmw_cmdbuf_header *header,
1426                               bool flush);
1427 extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man,
1428                               size_t size, bool interruptible,
1429                               struct vmw_cmdbuf_header **p_header);
1430 extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header);
1431 extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man,
1432                                 bool interruptible);
1433 extern void vmw_cmdbuf_irqthread(struct vmw_cmdbuf_man *man);
1434
1435 /* CPU blit utilities - vmwgfx_blit.c */
1436
1437 /**
1438  * struct vmw_diff_cpy - CPU blit information structure
1439  *
1440  * @rect: The output bounding box rectangle.
1441  * @line: The current line of the blit.
1442  * @line_offset: Offset of the current line segment.
1443  * @cpp: Bytes per pixel (granularity information).
1444  * @memcpy: Which memcpy function to use.
1445  */
1446 struct vmw_diff_cpy {
1447         struct drm_rect rect;
1448         size_t line;
1449         size_t line_offset;
1450         int cpp;
1451         void (*do_cpy)(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1452                        size_t n);
1453 };
1454
1455 #define VMW_CPU_BLIT_INITIALIZER {      \
1456         .do_cpy = vmw_memcpy,           \
1457 }
1458
1459 #define VMW_CPU_BLIT_DIFF_INITIALIZER(_cpp) {     \
1460         .line = 0,                                \
1461         .line_offset = 0,                         \
1462         .rect = { .x1 = INT_MAX/2,                \
1463                   .y1 = INT_MAX/2,                \
1464                   .x2 = INT_MIN/2,                \
1465                   .y2 = INT_MIN/2                 \
1466         },                                        \
1467         .cpp = _cpp,                              \
1468         .do_cpy = vmw_diff_memcpy,                \
1469 }
1470
1471 void vmw_diff_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1472                      size_t n);
1473
1474 void vmw_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src, size_t n);
1475
1476 int vmw_bo_cpu_blit(struct ttm_buffer_object *dst,
1477                     u32 dst_offset, u32 dst_stride,
1478                     struct ttm_buffer_object *src,
1479                     u32 src_offset, u32 src_stride,
1480                     u32 w, u32 h,
1481                     struct vmw_diff_cpy *diff);
1482
1483 /* Host messaging -vmwgfx_msg.c: */
1484 int vmw_host_get_guestinfo(const char *guest_info_param,
1485                            char *buffer, size_t *length);
1486 int vmw_host_log(const char *log);
1487 int vmw_msg_ioctl(struct drm_device *dev, void *data,
1488                   struct drm_file *file_priv);
1489
1490 /* VMW logging */
1491
1492 /**
1493  * VMW_DEBUG_USER - Debug output for user-space debugging.
1494  *
1495  * @fmt: printf() like format string.
1496  *
1497  * This macro is for logging user-space error and debugging messages for e.g.
1498  * command buffer execution errors due to malformed commands, invalid context,
1499  * etc.
1500  */
1501 #define VMW_DEBUG_USER(fmt, ...)                                              \
1502         DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
1503
1504 /* Resource dirtying - vmwgfx_page_dirty.c */
1505 void vmw_bo_dirty_scan(struct vmw_buffer_object *vbo);
1506 int vmw_bo_dirty_add(struct vmw_buffer_object *vbo);
1507 void vmw_bo_dirty_transfer_to_res(struct vmw_resource *res);
1508 void vmw_bo_dirty_clear_res(struct vmw_resource *res);
1509 void vmw_bo_dirty_release(struct vmw_buffer_object *vbo);
1510 void vmw_bo_dirty_unmap(struct vmw_buffer_object *vbo,
1511                         pgoff_t start, pgoff_t end);
1512 vm_fault_t vmw_bo_vm_fault(struct vm_fault *vmf);
1513 vm_fault_t vmw_bo_vm_mkwrite(struct vm_fault *vmf);
1514 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
1515 vm_fault_t vmw_bo_vm_huge_fault(struct vm_fault *vmf,
1516                                 enum page_entry_size pe_size);
1517 #endif
1518
1519 /* Transparent hugepage support - vmwgfx_thp.c */
1520 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
1521 extern int vmw_thp_init(struct vmw_private *dev_priv);
1522 void vmw_thp_fini(struct vmw_private *dev_priv);
1523 #endif
1524
1525 /**
1526  * VMW_DEBUG_KMS - Debug output for kernel mode-setting
1527  *
1528  * This macro is for debugging vmwgfx mode-setting code.
1529  */
1530 #define VMW_DEBUG_KMS(fmt, ...)                                               \
1531         DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
1532
1533 /**
1534  * Inline helper functions
1535  */
1536
1537 static inline void vmw_surface_unreference(struct vmw_surface **srf)
1538 {
1539         struct vmw_surface *tmp_srf = *srf;
1540         struct vmw_resource *res = &tmp_srf->res;
1541         *srf = NULL;
1542
1543         vmw_resource_unreference(&res);
1544 }
1545
1546 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
1547 {
1548         (void) vmw_resource_reference(&srf->res);
1549         return srf;
1550 }
1551
1552 static inline void vmw_bo_unreference(struct vmw_buffer_object **buf)
1553 {
1554         struct vmw_buffer_object *tmp_buf = *buf;
1555
1556         *buf = NULL;
1557         if (tmp_buf != NULL) {
1558                 ttm_bo_put(&tmp_buf->base);
1559         }
1560 }
1561
1562 static inline struct vmw_buffer_object *
1563 vmw_bo_reference(struct vmw_buffer_object *buf)
1564 {
1565         ttm_bo_get(&buf->base);
1566         return buf;
1567 }
1568
1569 static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
1570 {
1571         return &ttm_mem_glob;
1572 }
1573
1574 static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv)
1575 {
1576         atomic_inc(&dev_priv->num_fifo_resources);
1577 }
1578
1579 static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv)
1580 {
1581         atomic_dec(&dev_priv->num_fifo_resources);
1582 }
1583
1584 /**
1585  * vmw_mmio_read - Perform a MMIO read from volatile memory
1586  *
1587  * @addr: The address to read from
1588  *
1589  * This function is intended to be equivalent to ioread32() on
1590  * memremap'd memory, but without byteswapping.
1591  */
1592 static inline u32 vmw_mmio_read(u32 *addr)
1593 {
1594         return READ_ONCE(*addr);
1595 }
1596
1597 /**
1598  * vmw_mmio_write - Perform a MMIO write to volatile memory
1599  *
1600  * @addr: The address to write to
1601  *
1602  * This function is intended to be equivalent to iowrite32 on
1603  * memremap'd memory, but without byteswapping.
1604  */
1605 static inline void vmw_mmio_write(u32 value, u32 *addr)
1606 {
1607         WRITE_ONCE(*addr, value);
1608 }
1609 #endif