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0001 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
0002 /**************************************************************************
0003  *
0004  * Copyright 2009-2022 VMware, Inc., Palo Alto, CA., USA
0005  *
0006  * Permission is hereby granted, free of charge, to any person obtaining a
0007  * copy of this software and associated documentation files (the
0008  * "Software"), to deal in the Software without restriction, including
0009  * without limitation the rights to use, copy, modify, merge, publish,
0010  * distribute, sub license, and/or sell copies of the Software, and to
0011  * permit persons to whom the Software is furnished to do so, subject to
0012  * the following conditions:
0013  *
0014  * The above copyright notice and this permission notice (including the
0015  * next paragraph) shall be included in all copies or substantial portions
0016  * of the Software.
0017  *
0018  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0019  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0020  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
0021  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
0022  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
0023  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
0024  * USE OR OTHER DEALINGS IN THE SOFTWARE.
0025  *
0026  **************************************************************************/
0027 
0028 #ifndef _VMWGFX_DRV_H_
0029 #define _VMWGFX_DRV_H_
0030 
0031 #include <linux/suspend.h>
0032 #include <linux/sync_file.h>
0033 
0034 #include <drm/drm_auth.h>
0035 #include <drm/drm_device.h>
0036 #include <drm/drm_file.h>
0037 #include <drm/drm_rect.h>
0038 
0039 #include <drm/ttm/ttm_bo_driver.h>
0040 #include <drm/ttm/ttm_execbuf_util.h>
0041 
0042 #include "ttm_object.h"
0043 
0044 #include "vmwgfx_fence.h"
0045 #include "vmwgfx_hashtab.h"
0046 #include "vmwgfx_reg.h"
0047 #include "vmwgfx_validation.h"
0048 
0049 /*
0050  * FIXME: vmwgfx_drm.h needs to be last due to dependencies.
0051  * uapi headers should not depend on header files outside uapi/.
0052  */
0053 #include <drm/vmwgfx_drm.h>
0054 
0055 
0056 #define VMWGFX_DRIVER_NAME "vmwgfx"
0057 #define VMWGFX_DRIVER_DATE "20211206"
0058 #define VMWGFX_DRIVER_MAJOR 2
0059 #define VMWGFX_DRIVER_MINOR 20
0060 #define VMWGFX_DRIVER_PATCHLEVEL 0
0061 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
0062 #define VMWGFX_MAX_DISPLAYS 16
0063 #define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768
0064 
0065 #define VMWGFX_PCI_ID_SVGA2              0x0405
0066 #define VMWGFX_PCI_ID_SVGA3              0x0406
0067 
0068 /*
0069  * This has to match get_count_order(SVGA_IRQFLAG_MAX)
0070  */
0071 #define VMWGFX_MAX_NUM_IRQS 6
0072 
0073 /*
0074  * Perhaps we should have sysfs entries for these.
0075  */
0076 #define VMWGFX_NUM_GB_CONTEXT 256
0077 #define VMWGFX_NUM_GB_SHADER 20000
0078 #define VMWGFX_NUM_GB_SURFACE 32768
0079 #define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS
0080 #define VMWGFX_NUM_DXCONTEXT 256
0081 #define VMWGFX_NUM_DXQUERY 512
0082 #define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\
0083             VMWGFX_NUM_GB_SHADER +\
0084             VMWGFX_NUM_GB_SURFACE +\
0085             VMWGFX_NUM_GB_SCREEN_TARGET)
0086 
0087 #define VMW_PL_GMR      (TTM_PL_PRIV + 0)
0088 #define VMW_PL_MOB      (TTM_PL_PRIV + 1)
0089 #define VMW_PL_SYSTEM   (TTM_PL_PRIV + 2)
0090 
0091 #define VMW_RES_CONTEXT ttm_driver_type0
0092 #define VMW_RES_SURFACE ttm_driver_type1
0093 #define VMW_RES_STREAM ttm_driver_type2
0094 #define VMW_RES_FENCE ttm_driver_type3
0095 #define VMW_RES_SHADER ttm_driver_type4
0096 
0097 #define MKSSTAT_CAPACITY_LOG2 5U
0098 #define MKSSTAT_CAPACITY (1U << MKSSTAT_CAPACITY_LOG2)
0099 
0100 struct vmw_fpriv {
0101     struct ttm_object_file *tfile;
0102     bool gb_aware; /* user-space is guest-backed aware */
0103 };
0104 
0105 /**
0106  * struct vmw_buffer_object - TTM buffer object with vmwgfx additions
0107  * @base: The TTM buffer object
0108  * @res_tree: RB tree of resources using this buffer object as a backing MOB
0109  * @base_mapped_count: ttm BO mapping count; used by KMS atomic helpers.
0110  * @cpu_writers: Number of synccpu write grabs. Protected by reservation when
0111  * increased. May be decreased without reservation.
0112  * @dx_query_ctx: DX context if this buffer object is used as a DX query MOB
0113  * @map: Kmap object for semi-persistent mappings
0114  * @res_prios: Eviction priority counts for attached resources
0115  * @dirty: structure for user-space dirty-tracking
0116  */
0117 struct vmw_buffer_object {
0118     struct ttm_buffer_object base;
0119     struct rb_root res_tree;
0120     /* For KMS atomic helpers: ttm bo mapping count */
0121     atomic_t base_mapped_count;
0122 
0123     atomic_t cpu_writers;
0124     /* Not ref-counted.  Protected by binding_mutex */
0125     struct vmw_resource *dx_query_ctx;
0126     /* Protected by reservation */
0127     struct ttm_bo_kmap_obj map;
0128     u32 res_prios[TTM_MAX_BO_PRIORITY];
0129     struct vmw_bo_dirty *dirty;
0130 };
0131 
0132 /**
0133  * struct vmw_validate_buffer - Carries validation info about buffers.
0134  *
0135  * @base: Validation info for TTM.
0136  * @hash: Hash entry for quick lookup of the TTM buffer object.
0137  *
0138  * This structure contains also driver private validation info
0139  * on top of the info needed by TTM.
0140  */
0141 struct vmw_validate_buffer {
0142     struct ttm_validate_buffer base;
0143     struct vmwgfx_hash_item hash;
0144     bool validate_as_mob;
0145 };
0146 
0147 struct vmw_res_func;
0148 
0149 
0150 /**
0151  * struct vmw-resource - base class for hardware resources
0152  *
0153  * @kref: For refcounting.
0154  * @dev_priv: Pointer to the device private for this resource. Immutable.
0155  * @id: Device id. Protected by @dev_priv::resource_lock.
0156  * @backup_size: Backup buffer size. Immutable.
0157  * @res_dirty: Resource contains data not yet in the backup buffer. Protected
0158  * by resource reserved.
0159  * @backup_dirty: Backup buffer contains data not yet in the HW resource.
0160  * Protected by resource reserved.
0161  * @coherent: Emulate coherency by tracking vm accesses.
0162  * @backup: The backup buffer if any. Protected by resource reserved.
0163  * @backup_offset: Offset into the backup buffer if any. Protected by resource
0164  * reserved. Note that only a few resource types can have a @backup_offset
0165  * different from zero.
0166  * @pin_count: The pin count for this resource. A pinned resource has a
0167  * pin-count greater than zero. It is not on the resource LRU lists and its
0168  * backup buffer is pinned. Hence it can't be evicted.
0169  * @func: Method vtable for this resource. Immutable.
0170  * @mob_node; Node for the MOB backup rbtree. Protected by @backup reserved.
0171  * @lru_head: List head for the LRU list. Protected by @dev_priv::resource_lock.
0172  * @binding_head: List head for the context binding list. Protected by
0173  * the @dev_priv::binding_mutex
0174  * @res_free: The resource destructor.
0175  * @hw_destroy: Callback to destroy the resource on the device, as part of
0176  * resource destruction.
0177  */
0178 struct vmw_resource_dirty;
0179 struct vmw_resource {
0180     struct kref kref;
0181     struct vmw_private *dev_priv;
0182     int id;
0183     u32 used_prio;
0184     unsigned long backup_size;
0185     u32 res_dirty : 1;
0186     u32 backup_dirty : 1;
0187     u32 coherent : 1;
0188     struct vmw_buffer_object *backup;
0189     unsigned long backup_offset;
0190     unsigned long pin_count;
0191     const struct vmw_res_func *func;
0192     struct rb_node mob_node;
0193     struct list_head lru_head;
0194     struct list_head binding_head;
0195     struct vmw_resource_dirty *dirty;
0196     void (*res_free) (struct vmw_resource *res);
0197     void (*hw_destroy) (struct vmw_resource *res);
0198 };
0199 
0200 
0201 /*
0202  * Resources that are managed using ioctls.
0203  */
0204 enum vmw_res_type {
0205     vmw_res_context,
0206     vmw_res_surface,
0207     vmw_res_stream,
0208     vmw_res_shader,
0209     vmw_res_dx_context,
0210     vmw_res_cotable,
0211     vmw_res_view,
0212     vmw_res_streamoutput,
0213     vmw_res_max
0214 };
0215 
0216 /*
0217  * Resources that are managed using command streams.
0218  */
0219 enum vmw_cmdbuf_res_type {
0220     vmw_cmdbuf_res_shader,
0221     vmw_cmdbuf_res_view,
0222     vmw_cmdbuf_res_streamoutput
0223 };
0224 
0225 struct vmw_cmdbuf_res_manager;
0226 
0227 struct vmw_cursor_snooper {
0228     size_t age;
0229     uint32_t *image;
0230 };
0231 
0232 struct vmw_framebuffer;
0233 struct vmw_surface_offset;
0234 
0235 /**
0236  * struct vmw_surface_metadata - Metadata describing a surface.
0237  *
0238  * @flags: Device flags.
0239  * @format: Surface SVGA3D_x format.
0240  * @mip_levels: Mip level for each face. For GB first index is used only.
0241  * @multisample_count: Sample count.
0242  * @multisample_pattern: Sample patterns.
0243  * @quality_level: Quality level.
0244  * @autogen_filter: Filter for automatically generated mipmaps.
0245  * @array_size: Number of array elements for a 1D/2D texture. For cubemap
0246                 texture number of faces * array_size. This should be 0 for pre
0247         SM4 device.
0248  * @buffer_byte_stride: Buffer byte stride.
0249  * @num_sizes: Size of @sizes. For GB surface this should always be 1.
0250  * @base_size: Surface dimension.
0251  * @sizes: Array representing mip sizes. Legacy only.
0252  * @scanout: Whether this surface will be used for scanout.
0253  *
0254  * This tracks metadata for both legacy and guest backed surface.
0255  */
0256 struct vmw_surface_metadata {
0257     u64 flags;
0258     u32 format;
0259     u32 mip_levels[DRM_VMW_MAX_SURFACE_FACES];
0260     u32 multisample_count;
0261     u32 multisample_pattern;
0262     u32 quality_level;
0263     u32 autogen_filter;
0264     u32 array_size;
0265     u32 num_sizes;
0266     u32 buffer_byte_stride;
0267     struct drm_vmw_size base_size;
0268     struct drm_vmw_size *sizes;
0269     bool scanout;
0270 };
0271 
0272 /**
0273  * struct vmw_surface: Resource structure for a surface.
0274  *
0275  * @res: The base resource for this surface.
0276  * @metadata: Metadata for this surface resource.
0277  * @snooper: Cursor data. Legacy surface only.
0278  * @offsets: Legacy surface only.
0279  * @view_list: List of views bound to this surface.
0280  */
0281 struct vmw_surface {
0282     struct vmw_resource res;
0283     struct vmw_surface_metadata metadata;
0284     struct vmw_cursor_snooper snooper;
0285     struct vmw_surface_offset *offsets;
0286     struct list_head view_list;
0287 };
0288 
0289 struct vmw_fifo_state {
0290     unsigned long reserved_size;
0291     u32 *dynamic_buffer;
0292     u32 *static_buffer;
0293     unsigned long static_buffer_size;
0294     bool using_bounce_buffer;
0295     uint32_t capabilities;
0296     struct mutex fifo_mutex;
0297     struct rw_semaphore rwsem;
0298 };
0299 
0300 /**
0301  * struct vmw_res_cache_entry - resource information cache entry
0302  * @handle: User-space handle of a resource.
0303  * @res: Non-ref-counted pointer to the resource.
0304  * @valid_handle: Whether the @handle member is valid.
0305  * @valid: Whether the entry is valid, which also implies that the execbuf
0306  * code holds a reference to the resource, and it's placed on the
0307  * validation list.
0308  *
0309  * Used to avoid frequent repeated user-space handle lookups of the
0310  * same resource.
0311  */
0312 struct vmw_res_cache_entry {
0313     uint32_t handle;
0314     struct vmw_resource *res;
0315     void *private;
0316     unsigned short valid_handle;
0317     unsigned short valid;
0318 };
0319 
0320 /**
0321  * enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
0322  */
0323 enum vmw_dma_map_mode {
0324     vmw_dma_alloc_coherent, /* Use TTM coherent pages */
0325     vmw_dma_map_populate,   /* Unmap from DMA just after unpopulate */
0326     vmw_dma_map_bind,       /* Unmap from DMA just before unbind */
0327     vmw_dma_map_max
0328 };
0329 
0330 /**
0331  * struct vmw_sg_table - Scatter/gather table for binding, with additional
0332  * device-specific information.
0333  *
0334  * @sgt: Pointer to a struct sg_table with binding information
0335  * @num_regions: Number of regions with device-address contiguous pages
0336  */
0337 struct vmw_sg_table {
0338     enum vmw_dma_map_mode mode;
0339     struct page **pages;
0340     const dma_addr_t *addrs;
0341     struct sg_table *sgt;
0342     unsigned long num_pages;
0343 };
0344 
0345 /**
0346  * struct vmw_piter - Page iterator that iterates over a list of pages
0347  * and DMA addresses that could be either a scatter-gather list or
0348  * arrays
0349  *
0350  * @pages: Array of page pointers to the pages.
0351  * @addrs: DMA addresses to the pages if coherent pages are used.
0352  * @iter: Scatter-gather page iterator. Current position in SG list.
0353  * @i: Current position in arrays.
0354  * @num_pages: Number of pages total.
0355  * @next: Function to advance the iterator. Returns false if past the list
0356  * of pages, true otherwise.
0357  * @dma_address: Function to return the DMA address of the current page.
0358  */
0359 struct vmw_piter {
0360     struct page **pages;
0361     const dma_addr_t *addrs;
0362     struct sg_dma_page_iter iter;
0363     unsigned long i;
0364     unsigned long num_pages;
0365     bool (*next)(struct vmw_piter *);
0366     dma_addr_t (*dma_address)(struct vmw_piter *);
0367 };
0368 
0369 
0370 struct vmw_ttm_tt {
0371     struct ttm_tt dma_ttm;
0372     struct vmw_private *dev_priv;
0373     int gmr_id;
0374     struct vmw_mob *mob;
0375     int mem_type;
0376     struct sg_table sgt;
0377     struct vmw_sg_table vsgt;
0378     bool mapped;
0379     bool bound;
0380 };
0381 
0382 /*
0383  * enum vmw_display_unit_type - Describes the display unit
0384  */
0385 enum vmw_display_unit_type {
0386     vmw_du_invalid = 0,
0387     vmw_du_legacy,
0388     vmw_du_screen_object,
0389     vmw_du_screen_target,
0390     vmw_du_max
0391 };
0392 
0393 struct vmw_validation_context;
0394 struct vmw_ctx_validation_info;
0395 
0396 /**
0397  * struct vmw_sw_context - Command submission context
0398  * @res_ht: Pointer hash table used to find validation duplicates
0399  * @kernel: Whether the command buffer originates from kernel code rather
0400  * than from user-space
0401  * @fp: If @kernel is false, points to the file of the client. Otherwise
0402  * NULL
0403  * @cmd_bounce: Command bounce buffer used for command validation before
0404  * copying to fifo space
0405  * @cmd_bounce_size: Current command bounce buffer size
0406  * @cur_query_bo: Current buffer object used as query result buffer
0407  * @bo_relocations: List of buffer object relocations
0408  * @res_relocations: List of resource relocations
0409  * @buf_start: Pointer to start of memory where command validation takes
0410  * place
0411  * @res_cache: Cache of recently looked up resources
0412  * @last_query_ctx: Last context that submitted a query
0413  * @needs_post_query_barrier: Whether a query barrier is needed after
0414  * command submission
0415  * @staged_bindings: Cached per-context binding tracker
0416  * @staged_bindings_inuse: Whether the cached per-context binding tracker
0417  * is in use
0418  * @staged_cmd_res: List of staged command buffer managed resources in this
0419  * command buffer
0420  * @ctx_list: List of context resources referenced in this command buffer
0421  * @dx_ctx_node: Validation metadata of the current DX context
0422  * @dx_query_mob: The MOB used for DX queries
0423  * @dx_query_ctx: The DX context used for the last DX query
0424  * @man: Pointer to the command buffer managed resource manager
0425  * @ctx: The validation context
0426  */
0427 struct vmw_sw_context{
0428     struct vmwgfx_open_hash res_ht;
0429     bool res_ht_initialized;
0430     bool kernel;
0431     struct vmw_fpriv *fp;
0432     struct drm_file *filp;
0433     uint32_t *cmd_bounce;
0434     uint32_t cmd_bounce_size;
0435     struct vmw_buffer_object *cur_query_bo;
0436     struct list_head bo_relocations;
0437     struct list_head res_relocations;
0438     uint32_t *buf_start;
0439     struct vmw_res_cache_entry res_cache[vmw_res_max];
0440     struct vmw_resource *last_query_ctx;
0441     bool needs_post_query_barrier;
0442     struct vmw_ctx_binding_state *staged_bindings;
0443     bool staged_bindings_inuse;
0444     struct list_head staged_cmd_res;
0445     struct list_head ctx_list;
0446     struct vmw_ctx_validation_info *dx_ctx_node;
0447     struct vmw_buffer_object *dx_query_mob;
0448     struct vmw_resource *dx_query_ctx;
0449     struct vmw_cmdbuf_res_manager *man;
0450     struct vmw_validation_context *ctx;
0451 };
0452 
0453 struct vmw_legacy_display;
0454 struct vmw_overlay;
0455 
0456 struct vmw_vga_topology_state {
0457     uint32_t width;
0458     uint32_t height;
0459     uint32_t primary;
0460     uint32_t pos_x;
0461     uint32_t pos_y;
0462 };
0463 
0464 
0465 /*
0466  * struct vmw_otable - Guest Memory OBject table metadata
0467  *
0468  * @size:           Size of the table (page-aligned).
0469  * @page_table:     Pointer to a struct vmw_mob holding the page table.
0470  */
0471 struct vmw_otable {
0472     unsigned long size;
0473     struct vmw_mob *page_table;
0474     bool enabled;
0475 };
0476 
0477 struct vmw_otable_batch {
0478     unsigned num_otables;
0479     struct vmw_otable *otables;
0480     struct vmw_resource *context;
0481     struct ttm_buffer_object *otable_bo;
0482 };
0483 
0484 enum {
0485     VMW_IRQTHREAD_FENCE,
0486     VMW_IRQTHREAD_CMDBUF,
0487     VMW_IRQTHREAD_MAX
0488 };
0489 
0490 /**
0491  * enum vmw_sm_type - Graphics context capability supported by device.
0492  * @VMW_SM_LEGACY: Pre DX context.
0493  * @VMW_SM_4: Context support upto SM4.
0494  * @VMW_SM_4_1: Context support upto SM4_1.
0495  * @VMW_SM_5: Context support up to SM5.
0496  * @VMW_SM_5_1X: Adds support for sm5_1 and gl43 extensions.
0497  * @VMW_SM_MAX: Should be the last.
0498  */
0499 enum vmw_sm_type {
0500     VMW_SM_LEGACY = 0,
0501     VMW_SM_4,
0502     VMW_SM_4_1,
0503     VMW_SM_5,
0504     VMW_SM_5_1X,
0505     VMW_SM_MAX
0506 };
0507 
0508 struct vmw_private {
0509     struct drm_device drm;
0510     struct ttm_device bdev;
0511 
0512     struct drm_vma_offset_manager vma_manager;
0513     u32 pci_id;
0514     resource_size_t io_start;
0515     resource_size_t vram_start;
0516     resource_size_t vram_size;
0517     resource_size_t max_primary_mem;
0518     u32 __iomem *rmmio;
0519     u32 *fifo_mem;
0520     resource_size_t fifo_mem_size;
0521     uint32_t fb_max_width;
0522     uint32_t fb_max_height;
0523     uint32_t texture_max_width;
0524     uint32_t texture_max_height;
0525     uint32_t stdu_max_width;
0526     uint32_t stdu_max_height;
0527     uint32_t initial_width;
0528     uint32_t initial_height;
0529     uint32_t capabilities;
0530     uint32_t capabilities2;
0531     uint32_t max_gmr_ids;
0532     uint32_t max_gmr_pages;
0533     uint32_t max_mob_pages;
0534     uint32_t max_mob_size;
0535     uint32_t memory_size;
0536     bool has_gmr;
0537     bool has_mob;
0538     spinlock_t hw_lock;
0539     bool assume_16bpp;
0540     u32 irqs[VMWGFX_MAX_NUM_IRQS];
0541     u32 num_irq_vectors;
0542 
0543     enum vmw_sm_type sm_type;
0544 
0545     /*
0546      * Framebuffer info.
0547      */
0548 
0549     void *fb_info;
0550     enum vmw_display_unit_type active_display_unit;
0551     struct vmw_legacy_display *ldu_priv;
0552     struct vmw_overlay *overlay_priv;
0553     struct drm_property *hotplug_mode_update_property;
0554     struct drm_property *implicit_placement_property;
0555     spinlock_t cursor_lock;
0556     struct drm_atomic_state *suspend_state;
0557 
0558     /*
0559      * Context and surface management.
0560      */
0561 
0562     spinlock_t resource_lock;
0563     struct idr res_idr[vmw_res_max];
0564 
0565     /*
0566      * A resource manager for kernel-only surfaces and
0567      * contexts.
0568      */
0569 
0570     struct ttm_object_device *tdev;
0571 
0572     /*
0573      * Fencing and IRQs.
0574      */
0575 
0576     atomic_t marker_seq;
0577     wait_queue_head_t fence_queue;
0578     wait_queue_head_t fifo_queue;
0579     spinlock_t waiter_lock;
0580     int fence_queue_waiters; /* Protected by waiter_lock */
0581     int goal_queue_waiters; /* Protected by waiter_lock */
0582     int cmdbuf_waiters; /* Protected by waiter_lock */
0583     int error_waiters; /* Protected by waiter_lock */
0584     int fifo_queue_waiters; /* Protected by waiter_lock */
0585     uint32_t last_read_seqno;
0586     struct vmw_fence_manager *fman;
0587     uint32_t irq_mask; /* Updates protected by waiter_lock */
0588 
0589     /*
0590      * Device state
0591      */
0592 
0593     uint32_t traces_state;
0594     uint32_t enable_state;
0595     uint32_t config_done_state;
0596 
0597     /**
0598      * Execbuf
0599      */
0600     /**
0601      * Protected by the cmdbuf mutex.
0602      */
0603 
0604     struct vmw_sw_context ctx;
0605     struct mutex cmdbuf_mutex;
0606     struct mutex binding_mutex;
0607 
0608     bool enable_fb;
0609 
0610     /**
0611      * PM management.
0612      */
0613     struct notifier_block pm_nb;
0614     bool refuse_hibernation;
0615     bool suspend_locked;
0616 
0617     atomic_t num_fifo_resources;
0618 
0619     /*
0620      * Query processing. These members
0621      * are protected by the cmdbuf mutex.
0622      */
0623 
0624     struct vmw_buffer_object *dummy_query_bo;
0625     struct vmw_buffer_object *pinned_bo;
0626     uint32_t query_cid;
0627     uint32_t query_cid_valid;
0628     bool dummy_query_bo_pinned;
0629 
0630     /*
0631      * Surface swapping. The "surface_lru" list is protected by the
0632      * resource lock in order to be able to destroy a surface and take
0633      * it off the lru atomically. "used_memory_size" is currently
0634      * protected by the cmdbuf mutex for simplicity.
0635      */
0636 
0637     struct list_head res_lru[vmw_res_max];
0638     uint32_t used_memory_size;
0639 
0640     /*
0641      * DMA mapping stuff.
0642      */
0643     enum vmw_dma_map_mode map_mode;
0644 
0645     /*
0646      * Guest Backed stuff
0647      */
0648     struct vmw_otable_batch otable_batch;
0649 
0650     struct vmw_fifo_state *fifo;
0651     struct vmw_cmdbuf_man *cman;
0652     DECLARE_BITMAP(irqthread_pending, VMW_IRQTHREAD_MAX);
0653 
0654     uint32 *devcaps;
0655 
0656     /*
0657      * mksGuestStat instance-descriptor and pid arrays
0658      */
0659     struct page *mksstat_user_pages[MKSSTAT_CAPACITY];
0660     atomic_t mksstat_user_pids[MKSSTAT_CAPACITY];
0661 
0662 #if IS_ENABLED(CONFIG_DRM_VMWGFX_MKSSTATS)
0663     struct page *mksstat_kern_pages[MKSSTAT_CAPACITY];
0664     u8 mksstat_kern_top_timer[MKSSTAT_CAPACITY];
0665     atomic_t mksstat_kern_pids[MKSSTAT_CAPACITY];
0666 #endif
0667 };
0668 
0669 static inline struct vmw_buffer_object *gem_to_vmw_bo(struct drm_gem_object *gobj)
0670 {
0671     return container_of((gobj), struct vmw_buffer_object, base.base);
0672 }
0673 
0674 static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res)
0675 {
0676     return container_of(res, struct vmw_surface, res);
0677 }
0678 
0679 static inline struct vmw_private *vmw_priv(struct drm_device *dev)
0680 {
0681     return (struct vmw_private *)dev->dev_private;
0682 }
0683 
0684 static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
0685 {
0686     return (struct vmw_fpriv *)file_priv->driver_priv;
0687 }
0688 
0689 /*
0690  * SVGA v3 has mmio register access and lacks fifo cmds
0691  */
0692 static inline bool vmw_is_svga_v3(const struct vmw_private *dev)
0693 {
0694     return dev->pci_id == VMWGFX_PCI_ID_SVGA3;
0695 }
0696 
0697 /*
0698  * The locking here is fine-grained, so that it is performed once
0699  * for every read- and write operation. This is of course costly, but we
0700  * don't perform much register access in the timing critical paths anyway.
0701  * Instead we have the extra benefit of being sure that we don't forget
0702  * the hw lock around register accesses.
0703  */
0704 static inline void vmw_write(struct vmw_private *dev_priv,
0705                  unsigned int offset, uint32_t value)
0706 {
0707     if (vmw_is_svga_v3(dev_priv)) {
0708         iowrite32(value, dev_priv->rmmio + offset);
0709     } else {
0710         spin_lock(&dev_priv->hw_lock);
0711         outl(offset, dev_priv->io_start + SVGA_INDEX_PORT);
0712         outl(value, dev_priv->io_start + SVGA_VALUE_PORT);
0713         spin_unlock(&dev_priv->hw_lock);
0714     }
0715 }
0716 
0717 static inline uint32_t vmw_read(struct vmw_private *dev_priv,
0718                 unsigned int offset)
0719 {
0720     u32 val;
0721 
0722     if (vmw_is_svga_v3(dev_priv)) {
0723         val = ioread32(dev_priv->rmmio + offset);
0724     } else {
0725         spin_lock(&dev_priv->hw_lock);
0726         outl(offset, dev_priv->io_start + SVGA_INDEX_PORT);
0727         val = inl(dev_priv->io_start + SVGA_VALUE_PORT);
0728         spin_unlock(&dev_priv->hw_lock);
0729     }
0730 
0731     return val;
0732 }
0733 
0734 /**
0735  * has_sm4_context - Does the device support SM4 context.
0736  * @dev_priv: Device private.
0737  *
0738  * Return: Bool value if device support SM4 context or not.
0739  */
0740 static inline bool has_sm4_context(const struct vmw_private *dev_priv)
0741 {
0742     return (dev_priv->sm_type >= VMW_SM_4);
0743 }
0744 
0745 /**
0746  * has_sm4_1_context - Does the device support SM4_1 context.
0747  * @dev_priv: Device private.
0748  *
0749  * Return: Bool value if device support SM4_1 context or not.
0750  */
0751 static inline bool has_sm4_1_context(const struct vmw_private *dev_priv)
0752 {
0753     return (dev_priv->sm_type >= VMW_SM_4_1);
0754 }
0755 
0756 /**
0757  * has_sm5_context - Does the device support SM5 context.
0758  * @dev_priv: Device private.
0759  *
0760  * Return: Bool value if device support SM5 context or not.
0761  */
0762 static inline bool has_sm5_context(const struct vmw_private *dev_priv)
0763 {
0764     return (dev_priv->sm_type >= VMW_SM_5);
0765 }
0766 
0767 /**
0768  * has_gl43_context - Does the device support GL43 context.
0769  * @dev_priv: Device private.
0770  *
0771  * Return: Bool value if device support SM5 context or not.
0772  */
0773 static inline bool has_gl43_context(const struct vmw_private *dev_priv)
0774 {
0775     return (dev_priv->sm_type >= VMW_SM_5_1X);
0776 }
0777 
0778 
0779 static inline u32 vmw_max_num_uavs(struct vmw_private *dev_priv)
0780 {
0781     return (has_gl43_context(dev_priv) ?
0782             SVGA3D_DX11_1_MAX_UAVIEWS : SVGA3D_MAX_UAVIEWS);
0783 }
0784 
0785 extern void vmw_svga_enable(struct vmw_private *dev_priv);
0786 extern void vmw_svga_disable(struct vmw_private *dev_priv);
0787 
0788 
0789 /**
0790  * GMR utilities - vmwgfx_gmr.c
0791  */
0792 
0793 extern int vmw_gmr_bind(struct vmw_private *dev_priv,
0794             const struct vmw_sg_table *vsgt,
0795             unsigned long num_pages,
0796             int gmr_id);
0797 extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
0798 
0799 /**
0800  * Resource utilities - vmwgfx_resource.c
0801  */
0802 struct vmw_user_resource_conv;
0803 
0804 extern void vmw_resource_unreference(struct vmw_resource **p_res);
0805 extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
0806 extern struct vmw_resource *
0807 vmw_resource_reference_unless_doomed(struct vmw_resource *res);
0808 extern int vmw_resource_validate(struct vmw_resource *res, bool intr,
0809                  bool dirtying);
0810 extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
0811                 bool no_backup);
0812 extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
0813 extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
0814                   struct drm_file *filp,
0815                   uint32_t handle,
0816                   struct vmw_surface **out_surf,
0817                   struct vmw_buffer_object **out_buf);
0818 extern int vmw_user_resource_lookup_handle(
0819     struct vmw_private *dev_priv,
0820     struct ttm_object_file *tfile,
0821     uint32_t handle,
0822     const struct vmw_user_resource_conv *converter,
0823     struct vmw_resource **p_res);
0824 extern struct vmw_resource *
0825 vmw_user_resource_noref_lookup_handle(struct vmw_private *dev_priv,
0826                       struct ttm_object_file *tfile,
0827                       uint32_t handle,
0828                       const struct vmw_user_resource_conv *
0829                       converter);
0830 extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
0831                   struct drm_file *file_priv);
0832 extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
0833                   struct drm_file *file_priv);
0834 extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
0835                   struct ttm_object_file *tfile,
0836                   uint32_t *inout_id,
0837                   struct vmw_resource **out);
0838 extern void vmw_resource_unreserve(struct vmw_resource *res,
0839                    bool dirty_set,
0840                    bool dirty,
0841                    bool switch_backup,
0842                    struct vmw_buffer_object *new_backup,
0843                    unsigned long new_backup_offset);
0844 extern void vmw_query_move_notify(struct ttm_buffer_object *bo,
0845                   struct ttm_resource *old_mem,
0846                   struct ttm_resource *new_mem);
0847 extern int vmw_query_readback_all(struct vmw_buffer_object *dx_query_mob);
0848 extern void vmw_resource_evict_all(struct vmw_private *dev_priv);
0849 extern void vmw_resource_unbind_list(struct vmw_buffer_object *vbo);
0850 void vmw_resource_mob_attach(struct vmw_resource *res);
0851 void vmw_resource_mob_detach(struct vmw_resource *res);
0852 void vmw_resource_dirty_update(struct vmw_resource *res, pgoff_t start,
0853                    pgoff_t end);
0854 int vmw_resources_clean(struct vmw_buffer_object *vbo, pgoff_t start,
0855             pgoff_t end, pgoff_t *num_prefault);
0856 
0857 /**
0858  * vmw_resource_mob_attached - Whether a resource currently has a mob attached
0859  * @res: The resource
0860  *
0861  * Return: true if the resource has a mob attached, false otherwise.
0862  */
0863 static inline bool vmw_resource_mob_attached(const struct vmw_resource *res)
0864 {
0865     return !RB_EMPTY_NODE(&res->mob_node);
0866 }
0867 
0868 /**
0869  * vmw_user_resource_noref_release - release a user resource pointer looked up
0870  * without reference
0871  */
0872 static inline void vmw_user_resource_noref_release(void)
0873 {
0874     ttm_base_object_noref_release();
0875 }
0876 
0877 /**
0878  * Buffer object helper functions - vmwgfx_bo.c
0879  */
0880 extern bool vmw_bo_is_vmw_bo(struct ttm_buffer_object *bo);
0881 extern int vmw_bo_pin_in_placement(struct vmw_private *vmw_priv,
0882                    struct vmw_buffer_object *bo,
0883                    struct ttm_placement *placement,
0884                    bool interruptible);
0885 extern int vmw_bo_pin_in_vram(struct vmw_private *dev_priv,
0886                   struct vmw_buffer_object *buf,
0887                   bool interruptible);
0888 extern int vmw_bo_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
0889                      struct vmw_buffer_object *buf,
0890                      bool interruptible);
0891 extern int vmw_bo_pin_in_start_of_vram(struct vmw_private *vmw_priv,
0892                        struct vmw_buffer_object *bo,
0893                        bool interruptible);
0894 extern int vmw_bo_unpin(struct vmw_private *vmw_priv,
0895             struct vmw_buffer_object *bo,
0896             bool interruptible);
0897 extern void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *buf,
0898                  SVGAGuestPtr *ptr);
0899 extern void vmw_bo_pin_reserved(struct vmw_buffer_object *bo, bool pin);
0900 extern void vmw_bo_bo_free(struct ttm_buffer_object *bo);
0901 extern int vmw_bo_create_kernel(struct vmw_private *dev_priv,
0902                 unsigned long size,
0903                 struct ttm_placement *placement,
0904                 struct ttm_buffer_object **p_bo);
0905 extern int vmw_bo_create(struct vmw_private *dev_priv,
0906              size_t size, struct ttm_placement *placement,
0907              bool interruptible, bool pin,
0908              void (*bo_free)(struct ttm_buffer_object *bo),
0909              struct vmw_buffer_object **p_bo);
0910 extern int vmw_bo_init(struct vmw_private *dev_priv,
0911                struct vmw_buffer_object *vmw_bo,
0912                size_t size, struct ttm_placement *placement,
0913                bool interruptible, bool pin,
0914                void (*bo_free)(struct ttm_buffer_object *bo));
0915 extern int vmw_bo_unref_ioctl(struct drm_device *dev, void *data,
0916                   struct drm_file *file_priv);
0917 extern int vmw_user_bo_synccpu_ioctl(struct drm_device *dev, void *data,
0918                      struct drm_file *file_priv);
0919 extern int vmw_user_bo_lookup(struct drm_file *filp,
0920                   uint32_t handle,
0921                   struct vmw_buffer_object **out);
0922 extern void vmw_bo_fence_single(struct ttm_buffer_object *bo,
0923                 struct vmw_fence_obj *fence);
0924 extern void *vmw_bo_map_and_cache(struct vmw_buffer_object *vbo);
0925 extern void vmw_bo_unmap(struct vmw_buffer_object *vbo);
0926 extern void vmw_bo_move_notify(struct ttm_buffer_object *bo,
0927                    struct ttm_resource *mem);
0928 extern void vmw_bo_swap_notify(struct ttm_buffer_object *bo);
0929 extern struct vmw_buffer_object *
0930 vmw_user_bo_noref_lookup(struct drm_file *filp, u32 handle);
0931 
0932 /**
0933  * vmw_bo_adjust_prio - Adjust the buffer object eviction priority
0934  * according to attached resources
0935  * @vbo: The struct vmw_buffer_object
0936  */
0937 static inline void vmw_bo_prio_adjust(struct vmw_buffer_object *vbo)
0938 {
0939     int i = ARRAY_SIZE(vbo->res_prios);
0940 
0941     while (i--) {
0942         if (vbo->res_prios[i]) {
0943             vbo->base.priority = i;
0944             return;
0945         }
0946     }
0947 
0948     vbo->base.priority = 3;
0949 }
0950 
0951 /**
0952  * vmw_bo_prio_add - Notify a buffer object of a newly attached resource
0953  * eviction priority
0954  * @vbo: The struct vmw_buffer_object
0955  * @prio: The resource priority
0956  *
0957  * After being notified, the code assigns the highest resource eviction priority
0958  * to the backing buffer object (mob).
0959  */
0960 static inline void vmw_bo_prio_add(struct vmw_buffer_object *vbo, int prio)
0961 {
0962     if (vbo->res_prios[prio]++ == 0)
0963         vmw_bo_prio_adjust(vbo);
0964 }
0965 
0966 /**
0967  * vmw_bo_prio_del - Notify a buffer object of a resource with a certain
0968  * priority being removed
0969  * @vbo: The struct vmw_buffer_object
0970  * @prio: The resource priority
0971  *
0972  * After being notified, the code assigns the highest resource eviction priority
0973  * to the backing buffer object (mob).
0974  */
0975 static inline void vmw_bo_prio_del(struct vmw_buffer_object *vbo, int prio)
0976 {
0977     if (--vbo->res_prios[prio] == 0)
0978         vmw_bo_prio_adjust(vbo);
0979 }
0980 
0981 /**
0982  * GEM related functionality - vmwgfx_gem.c
0983  */
0984 extern int vmw_gem_object_create_with_handle(struct vmw_private *dev_priv,
0985                          struct drm_file *filp,
0986                          uint32_t size,
0987                          uint32_t *handle,
0988                          struct vmw_buffer_object **p_vbo);
0989 extern int vmw_gem_object_create_ioctl(struct drm_device *dev, void *data,
0990                        struct drm_file *filp);
0991 extern void vmw_gem_destroy(struct ttm_buffer_object *bo);
0992 extern void vmw_debugfs_gem_init(struct vmw_private *vdev);
0993 
0994 /**
0995  * Misc Ioctl functionality - vmwgfx_ioctl.c
0996  */
0997 
0998 extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
0999                   struct drm_file *file_priv);
1000 extern int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
1001                 struct drm_file *file_priv);
1002 extern int vmw_present_ioctl(struct drm_device *dev, void *data,
1003                  struct drm_file *file_priv);
1004 extern int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
1005                       struct drm_file *file_priv);
1006 
1007 /**
1008  * Fifo utilities - vmwgfx_fifo.c
1009  */
1010 
1011 extern struct vmw_fifo_state *vmw_fifo_create(struct vmw_private *dev_priv);
1012 extern void vmw_fifo_destroy(struct vmw_private *dev_priv);
1013 extern bool vmw_cmd_supported(struct vmw_private *vmw);
1014 extern void *
1015 vmw_cmd_ctx_reserve(struct vmw_private *dev_priv, uint32_t bytes, int ctx_id);
1016 extern void vmw_cmd_commit(struct vmw_private *dev_priv, uint32_t bytes);
1017 extern void vmw_cmd_commit_flush(struct vmw_private *dev_priv, uint32_t bytes);
1018 extern int vmw_cmd_send_fence(struct vmw_private *dev_priv, uint32_t *seqno);
1019 extern bool vmw_supports_3d(struct vmw_private *dev_priv);
1020 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
1021 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
1022 extern int vmw_cmd_emit_dummy_query(struct vmw_private *dev_priv,
1023                     uint32_t cid);
1024 extern int vmw_cmd_flush(struct vmw_private *dev_priv,
1025              bool interruptible);
1026 
1027 #define VMW_CMD_CTX_RESERVE(__priv, __bytes, __ctx_id)                        \
1028 ({                                                                            \
1029     vmw_cmd_ctx_reserve(__priv, __bytes, __ctx_id) ? : ({                 \
1030         DRM_ERROR("FIFO reserve failed at %s for %u bytes\n",         \
1031               __func__, (unsigned int) __bytes);                  \
1032         NULL;                                                         \
1033     });                                                                   \
1034 })
1035 
1036 #define VMW_CMD_RESERVE(__priv, __bytes)                                     \
1037     VMW_CMD_CTX_RESERVE(__priv, __bytes, SVGA3D_INVALID_ID)
1038 
1039 
1040 /**
1041  * vmw_fifo_caps - Returns the capabilities of the FIFO command
1042  * queue or 0 if fifo memory isn't present.
1043  * @dev_priv: The device private context
1044  */
1045 static inline uint32_t vmw_fifo_caps(const struct vmw_private *dev_priv)
1046 {
1047     if (!dev_priv->fifo_mem || !dev_priv->fifo)
1048         return 0;
1049     return dev_priv->fifo->capabilities;
1050 }
1051 
1052 
1053 /**
1054  * vmw_is_cursor_bypass3_enabled - Returns TRUE iff Cursor Bypass 3
1055  * is enabled in the FIFO.
1056  * @dev_priv: The device private context
1057  */
1058 static inline bool
1059 vmw_is_cursor_bypass3_enabled(const struct vmw_private *dev_priv)
1060 {
1061     return (vmw_fifo_caps(dev_priv) & SVGA_FIFO_CAP_CURSOR_BYPASS_3) != 0;
1062 }
1063 
1064 /**
1065  * TTM glue - vmwgfx_ttm_glue.c
1066  */
1067 
1068 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
1069 
1070 /**
1071  * TTM buffer object driver - vmwgfx_ttm_buffer.c
1072  */
1073 
1074 extern const size_t vmw_tt_size;
1075 extern struct ttm_placement vmw_vram_placement;
1076 extern struct ttm_placement vmw_vram_sys_placement;
1077 extern struct ttm_placement vmw_vram_gmr_placement;
1078 extern struct ttm_placement vmw_sys_placement;
1079 extern struct ttm_placement vmw_srf_placement;
1080 extern struct ttm_placement vmw_mob_placement;
1081 extern struct ttm_placement vmw_nonfixed_placement;
1082 extern struct ttm_device_funcs vmw_bo_driver;
1083 extern const struct vmw_sg_table *
1084 vmw_bo_sg_table(struct ttm_buffer_object *bo);
1085 extern int vmw_bo_create_and_populate(struct vmw_private *dev_priv,
1086                       unsigned long bo_size,
1087                       struct ttm_buffer_object **bo_p);
1088 
1089 extern void vmw_piter_start(struct vmw_piter *viter,
1090                 const struct vmw_sg_table *vsgt,
1091                 unsigned long p_offs);
1092 
1093 /**
1094  * vmw_piter_next - Advance the iterator one page.
1095  *
1096  * @viter: Pointer to the iterator to advance.
1097  *
1098  * Returns false if past the list of pages, true otherwise.
1099  */
1100 static inline bool vmw_piter_next(struct vmw_piter *viter)
1101 {
1102     return viter->next(viter);
1103 }
1104 
1105 /**
1106  * vmw_piter_dma_addr - Return the DMA address of the current page.
1107  *
1108  * @viter: Pointer to the iterator
1109  *
1110  * Returns the DMA address of the page pointed to by @viter.
1111  */
1112 static inline dma_addr_t vmw_piter_dma_addr(struct vmw_piter *viter)
1113 {
1114     return viter->dma_address(viter);
1115 }
1116 
1117 /**
1118  * vmw_piter_page - Return a pointer to the current page.
1119  *
1120  * @viter: Pointer to the iterator
1121  *
1122  * Returns the DMA address of the page pointed to by @viter.
1123  */
1124 static inline struct page *vmw_piter_page(struct vmw_piter *viter)
1125 {
1126     return viter->pages[viter->i];
1127 }
1128 
1129 /**
1130  * Command submission - vmwgfx_execbuf.c
1131  */
1132 
1133 extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
1134                  struct drm_file *file_priv);
1135 extern int vmw_execbuf_process(struct drm_file *file_priv,
1136                    struct vmw_private *dev_priv,
1137                    void __user *user_commands,
1138                    void *kernel_commands,
1139                    uint32_t command_size,
1140                    uint64_t throttle_us,
1141                    uint32_t dx_context_handle,
1142                    struct drm_vmw_fence_rep __user
1143                    *user_fence_rep,
1144                    struct vmw_fence_obj **out_fence,
1145                    uint32_t flags);
1146 extern void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
1147                         struct vmw_fence_obj *fence);
1148 extern void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv);
1149 
1150 extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
1151                       struct vmw_private *dev_priv,
1152                       struct vmw_fence_obj **p_fence,
1153                       uint32_t *p_handle);
1154 extern int vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
1155                     struct vmw_fpriv *vmw_fp,
1156                     int ret,
1157                     struct drm_vmw_fence_rep __user
1158                     *user_fence_rep,
1159                     struct vmw_fence_obj *fence,
1160                     uint32_t fence_handle,
1161                     int32_t out_fence_fd);
1162 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd);
1163 
1164 /**
1165  * IRQs and wating - vmwgfx_irq.c
1166  */
1167 
1168 extern int vmw_irq_install(struct vmw_private *dev_priv);
1169 extern void vmw_irq_uninstall(struct drm_device *dev);
1170 extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
1171                 uint32_t seqno);
1172 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
1173                  bool lazy,
1174                  bool fifo_idle,
1175                  uint32_t seqno,
1176                  bool interruptible,
1177                  unsigned long timeout);
1178 extern void vmw_update_seqno(struct vmw_private *dev_priv);
1179 extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
1180 extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
1181 extern void vmw_goal_waiter_add(struct vmw_private *dev_priv);
1182 extern void vmw_goal_waiter_remove(struct vmw_private *dev_priv);
1183 extern void vmw_generic_waiter_add(struct vmw_private *dev_priv, u32 flag,
1184                    int *waiter_count);
1185 extern void vmw_generic_waiter_remove(struct vmw_private *dev_priv,
1186                       u32 flag, int *waiter_count);
1187 
1188 
1189 /**
1190  * Kernel framebuffer - vmwgfx_fb.c
1191  */
1192 
1193 #ifdef CONFIG_DRM_FBDEV_EMULATION
1194 int vmw_fb_init(struct vmw_private *vmw_priv);
1195 int vmw_fb_close(struct vmw_private *dev_priv);
1196 int vmw_fb_off(struct vmw_private *vmw_priv);
1197 int vmw_fb_on(struct vmw_private *vmw_priv);
1198 #else
1199 static inline int vmw_fb_init(struct vmw_private *vmw_priv)
1200 {
1201     return 0;
1202 }
1203 static inline int vmw_fb_close(struct vmw_private *dev_priv)
1204 {
1205     return 0;
1206 }
1207 static inline int vmw_fb_off(struct vmw_private *vmw_priv)
1208 {
1209     return 0;
1210 }
1211 static inline int vmw_fb_on(struct vmw_private *vmw_priv)
1212 {
1213     return 0;
1214 }
1215 #endif
1216 
1217 /**
1218  * Kernel modesetting - vmwgfx_kms.c
1219  */
1220 
1221 int vmw_kms_init(struct vmw_private *dev_priv);
1222 int vmw_kms_close(struct vmw_private *dev_priv);
1223 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1224                 struct drm_file *file_priv);
1225 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
1226 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
1227               struct ttm_object_file *tfile,
1228               struct ttm_buffer_object *bo,
1229               SVGA3dCmdHeader *header);
1230 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1231                unsigned width, unsigned height, unsigned pitch,
1232                unsigned bpp, unsigned depth);
1233 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1234                 uint32_t pitch,
1235                 uint32_t height);
1236 u32 vmw_get_vblank_counter(struct drm_crtc *crtc);
1237 int vmw_enable_vblank(struct drm_crtc *crtc);
1238 void vmw_disable_vblank(struct drm_crtc *crtc);
1239 int vmw_kms_present(struct vmw_private *dev_priv,
1240             struct drm_file *file_priv,
1241             struct vmw_framebuffer *vfb,
1242             struct vmw_surface *surface,
1243             uint32_t sid, int32_t destX, int32_t destY,
1244             struct drm_vmw_rect *clips,
1245             uint32_t num_clips);
1246 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1247                 struct drm_file *file_priv);
1248 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
1249 int vmw_kms_suspend(struct drm_device *dev);
1250 int vmw_kms_resume(struct drm_device *dev);
1251 void vmw_kms_lost_device(struct drm_device *dev);
1252 
1253 int vmw_dumb_create(struct drm_file *file_priv,
1254             struct drm_device *dev,
1255             struct drm_mode_create_dumb *args);
1256 extern int vmw_resource_pin(struct vmw_resource *res, bool interruptible);
1257 extern void vmw_resource_unpin(struct vmw_resource *res);
1258 extern enum vmw_res_type vmw_res_type(const struct vmw_resource *res);
1259 
1260 /**
1261  * Overlay control - vmwgfx_overlay.c
1262  */
1263 
1264 int vmw_overlay_init(struct vmw_private *dev_priv);
1265 int vmw_overlay_close(struct vmw_private *dev_priv);
1266 int vmw_overlay_ioctl(struct drm_device *dev, void *data,
1267               struct drm_file *file_priv);
1268 int vmw_overlay_resume_all(struct vmw_private *dev_priv);
1269 int vmw_overlay_pause_all(struct vmw_private *dev_priv);
1270 int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
1271 int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
1272 int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
1273 int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
1274 
1275 /**
1276  * GMR Id manager
1277  */
1278 
1279 int vmw_gmrid_man_init(struct vmw_private *dev_priv, int type);
1280 void vmw_gmrid_man_fini(struct vmw_private *dev_priv, int type);
1281 
1282 /**
1283  * System memory manager
1284  */
1285 int vmw_sys_man_init(struct vmw_private *dev_priv);
1286 void vmw_sys_man_fini(struct vmw_private *dev_priv);
1287 
1288 /**
1289  * Prime - vmwgfx_prime.c
1290  */
1291 
1292 extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
1293 extern int vmw_prime_fd_to_handle(struct drm_device *dev,
1294                   struct drm_file *file_priv,
1295                   int fd, u32 *handle);
1296 extern int vmw_prime_handle_to_fd(struct drm_device *dev,
1297                   struct drm_file *file_priv,
1298                   uint32_t handle, uint32_t flags,
1299                   int *prime_fd);
1300 
1301 /*
1302  * MemoryOBject management -  vmwgfx_mob.c
1303  */
1304 struct vmw_mob;
1305 extern int vmw_mob_bind(struct vmw_private *dev_priv, struct vmw_mob *mob,
1306             const struct vmw_sg_table *vsgt,
1307             unsigned long num_data_pages, int32_t mob_id);
1308 extern void vmw_mob_unbind(struct vmw_private *dev_priv,
1309                struct vmw_mob *mob);
1310 extern void vmw_mob_destroy(struct vmw_mob *mob);
1311 extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
1312 extern int vmw_otables_setup(struct vmw_private *dev_priv);
1313 extern void vmw_otables_takedown(struct vmw_private *dev_priv);
1314 
1315 /*
1316  * Context management - vmwgfx_context.c
1317  */
1318 
1319 extern const struct vmw_user_resource_conv *user_context_converter;
1320 
1321 extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
1322                     struct drm_file *file_priv);
1323 extern int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data,
1324                          struct drm_file *file_priv);
1325 extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
1326                      struct drm_file *file_priv);
1327 extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
1328 extern struct vmw_cmdbuf_res_manager *
1329 vmw_context_res_man(struct vmw_resource *ctx);
1330 extern struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx,
1331                         SVGACOTableType cotable_type);
1332 struct vmw_ctx_binding_state;
1333 extern struct vmw_ctx_binding_state *
1334 vmw_context_binding_state(struct vmw_resource *ctx);
1335 extern void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx,
1336                       bool readback);
1337 extern int vmw_context_bind_dx_query(struct vmw_resource *ctx_res,
1338                      struct vmw_buffer_object *mob);
1339 extern struct vmw_buffer_object *
1340 vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res);
1341 
1342 
1343 /*
1344  * Surface management - vmwgfx_surface.c
1345  */
1346 
1347 extern const struct vmw_user_resource_conv *user_surface_converter;
1348 
1349 extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
1350                      struct drm_file *file_priv);
1351 extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
1352                     struct drm_file *file_priv);
1353 extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
1354                        struct drm_file *file_priv);
1355 extern int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1356                        struct drm_file *file_priv);
1357 extern int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1358                       struct drm_file *file_priv);
1359 extern int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev,
1360                        void *data,
1361                        struct drm_file *file_priv);
1362 extern int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev,
1363                           void *data,
1364                           struct drm_file *file_priv);
1365 
1366 int vmw_gb_surface_define(struct vmw_private *dev_priv,
1367               const struct vmw_surface_metadata *req,
1368               struct vmw_surface **srf_out);
1369 
1370 /*
1371  * Shader management - vmwgfx_shader.c
1372  */
1373 
1374 extern const struct vmw_user_resource_conv *user_shader_converter;
1375 
1376 extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
1377                    struct drm_file *file_priv);
1378 extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
1379                     struct drm_file *file_priv);
1380 extern int vmw_compat_shader_add(struct vmw_private *dev_priv,
1381                  struct vmw_cmdbuf_res_manager *man,
1382                  u32 user_key, const void *bytecode,
1383                  SVGA3dShaderType shader_type,
1384                  size_t size,
1385                  struct list_head *list);
1386 extern int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man,
1387                  u32 user_key, SVGA3dShaderType shader_type,
1388                  struct list_head *list);
1389 extern int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man,
1390                  struct vmw_resource *ctx,
1391                  u32 user_key,
1392                  SVGA3dShaderType shader_type,
1393                  struct list_head *list);
1394 extern void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv,
1395                          struct list_head *list,
1396                          bool readback);
1397 
1398 extern struct vmw_resource *
1399 vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man,
1400           u32 user_key, SVGA3dShaderType shader_type);
1401 
1402 /*
1403  * Streamoutput management
1404  */
1405 struct vmw_resource *
1406 vmw_dx_streamoutput_lookup(struct vmw_cmdbuf_res_manager *man,
1407                u32 user_key);
1408 int vmw_dx_streamoutput_add(struct vmw_cmdbuf_res_manager *man,
1409                 struct vmw_resource *ctx,
1410                 SVGA3dStreamOutputId user_key,
1411                 struct list_head *list);
1412 void vmw_dx_streamoutput_set_size(struct vmw_resource *res, u32 size);
1413 int vmw_dx_streamoutput_remove(struct vmw_cmdbuf_res_manager *man,
1414                    SVGA3dStreamOutputId user_key,
1415                    struct list_head *list);
1416 void vmw_dx_streamoutput_cotable_list_scrub(struct vmw_private *dev_priv,
1417                         struct list_head *list,
1418                         bool readback);
1419 
1420 /*
1421  * Command buffer managed resources - vmwgfx_cmdbuf_res.c
1422  */
1423 
1424 extern struct vmw_cmdbuf_res_manager *
1425 vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv);
1426 extern void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man);
1427 extern struct vmw_resource *
1428 vmw_cmdbuf_res_lookup(struct vmw_cmdbuf_res_manager *man,
1429               enum vmw_cmdbuf_res_type res_type,
1430               u32 user_key);
1431 extern void vmw_cmdbuf_res_revert(struct list_head *list);
1432 extern void vmw_cmdbuf_res_commit(struct list_head *list);
1433 extern int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
1434                   enum vmw_cmdbuf_res_type res_type,
1435                   u32 user_key,
1436                   struct vmw_resource *res,
1437                   struct list_head *list);
1438 extern int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man,
1439                  enum vmw_cmdbuf_res_type res_type,
1440                  u32 user_key,
1441                  struct list_head *list,
1442                  struct vmw_resource **res);
1443 
1444 /*
1445  * COTable management - vmwgfx_cotable.c
1446  */
1447 extern const SVGACOTableType vmw_cotable_scrub_order[];
1448 extern struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv,
1449                           struct vmw_resource *ctx,
1450                           u32 type);
1451 extern int vmw_cotable_notify(struct vmw_resource *res, int id);
1452 extern int vmw_cotable_scrub(struct vmw_resource *res, bool readback);
1453 extern void vmw_cotable_add_resource(struct vmw_resource *ctx,
1454                      struct list_head *head);
1455 
1456 /*
1457  * Command buffer managerment vmwgfx_cmdbuf.c
1458  */
1459 struct vmw_cmdbuf_man;
1460 struct vmw_cmdbuf_header;
1461 
1462 extern struct vmw_cmdbuf_man *
1463 vmw_cmdbuf_man_create(struct vmw_private *dev_priv);
1464 extern int vmw_cmdbuf_set_pool_size(struct vmw_cmdbuf_man *man, size_t size);
1465 extern void vmw_cmdbuf_remove_pool(struct vmw_cmdbuf_man *man);
1466 extern void vmw_cmdbuf_man_destroy(struct vmw_cmdbuf_man *man);
1467 extern int vmw_cmdbuf_idle(struct vmw_cmdbuf_man *man, bool interruptible,
1468                unsigned long timeout);
1469 extern void *vmw_cmdbuf_reserve(struct vmw_cmdbuf_man *man, size_t size,
1470                 int ctx_id, bool interruptible,
1471                 struct vmw_cmdbuf_header *header);
1472 extern void vmw_cmdbuf_commit(struct vmw_cmdbuf_man *man, size_t size,
1473                   struct vmw_cmdbuf_header *header,
1474                   bool flush);
1475 extern void *vmw_cmdbuf_alloc(struct vmw_cmdbuf_man *man,
1476                   size_t size, bool interruptible,
1477                   struct vmw_cmdbuf_header **p_header);
1478 extern void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header);
1479 extern int vmw_cmdbuf_cur_flush(struct vmw_cmdbuf_man *man,
1480                 bool interruptible);
1481 extern void vmw_cmdbuf_irqthread(struct vmw_cmdbuf_man *man);
1482 
1483 /* CPU blit utilities - vmwgfx_blit.c */
1484 
1485 /**
1486  * struct vmw_diff_cpy - CPU blit information structure
1487  *
1488  * @rect: The output bounding box rectangle.
1489  * @line: The current line of the blit.
1490  * @line_offset: Offset of the current line segment.
1491  * @cpp: Bytes per pixel (granularity information).
1492  * @memcpy: Which memcpy function to use.
1493  */
1494 struct vmw_diff_cpy {
1495     struct drm_rect rect;
1496     size_t line;
1497     size_t line_offset;
1498     int cpp;
1499     void (*do_cpy)(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1500                size_t n);
1501 };
1502 
1503 #define VMW_CPU_BLIT_INITIALIZER {  \
1504     .do_cpy = vmw_memcpy,       \
1505 }
1506 
1507 #define VMW_CPU_BLIT_DIFF_INITIALIZER(_cpp) {     \
1508     .line = 0,                \
1509     .line_offset = 0,             \
1510     .rect = { .x1 = INT_MAX/2,        \
1511           .y1 = INT_MAX/2,        \
1512           .x2 = INT_MIN/2,        \
1513           .y2 = INT_MIN/2         \
1514     },                    \
1515     .cpp = _cpp,                  \
1516     .do_cpy = vmw_diff_memcpy,        \
1517 }
1518 
1519 void vmw_diff_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,
1520              size_t n);
1521 
1522 void vmw_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src, size_t n);
1523 
1524 int vmw_bo_cpu_blit(struct ttm_buffer_object *dst,
1525             u32 dst_offset, u32 dst_stride,
1526             struct ttm_buffer_object *src,
1527             u32 src_offset, u32 src_stride,
1528             u32 w, u32 h,
1529             struct vmw_diff_cpy *diff);
1530 
1531 /* Host messaging -vmwgfx_msg.c: */
1532 int vmw_host_get_guestinfo(const char *guest_info_param,
1533                char *buffer, size_t *length);
1534 __printf(1, 2) int vmw_host_printf(const char *fmt, ...);
1535 int vmw_msg_ioctl(struct drm_device *dev, void *data,
1536           struct drm_file *file_priv);
1537 
1538 /* Host mksGuestStats -vmwgfx_msg.c: */
1539 int vmw_mksstat_get_kern_slot(pid_t pid, struct vmw_private *dev_priv);
1540 
1541 int vmw_mksstat_reset_ioctl(struct drm_device *dev, void *data,
1542               struct drm_file *file_priv);
1543 int vmw_mksstat_add_ioctl(struct drm_device *dev, void *data,
1544               struct drm_file *file_priv);
1545 int vmw_mksstat_remove_ioctl(struct drm_device *dev, void *data,
1546               struct drm_file *file_priv);
1547 int vmw_mksstat_remove_all(struct vmw_private *dev_priv);
1548 
1549 /* VMW logging */
1550 
1551 /**
1552  * VMW_DEBUG_USER - Debug output for user-space debugging.
1553  *
1554  * @fmt: printf() like format string.
1555  *
1556  * This macro is for logging user-space error and debugging messages for e.g.
1557  * command buffer execution errors due to malformed commands, invalid context,
1558  * etc.
1559  */
1560 #define VMW_DEBUG_USER(fmt, ...)                                              \
1561     DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
1562 
1563 /* Resource dirtying - vmwgfx_page_dirty.c */
1564 void vmw_bo_dirty_scan(struct vmw_buffer_object *vbo);
1565 int vmw_bo_dirty_add(struct vmw_buffer_object *vbo);
1566 void vmw_bo_dirty_transfer_to_res(struct vmw_resource *res);
1567 void vmw_bo_dirty_clear_res(struct vmw_resource *res);
1568 void vmw_bo_dirty_release(struct vmw_buffer_object *vbo);
1569 void vmw_bo_dirty_unmap(struct vmw_buffer_object *vbo,
1570             pgoff_t start, pgoff_t end);
1571 vm_fault_t vmw_bo_vm_fault(struct vm_fault *vmf);
1572 vm_fault_t vmw_bo_vm_mkwrite(struct vm_fault *vmf);
1573 
1574 
1575 /**
1576  * VMW_DEBUG_KMS - Debug output for kernel mode-setting
1577  *
1578  * This macro is for debugging vmwgfx mode-setting code.
1579  */
1580 #define VMW_DEBUG_KMS(fmt, ...)                                               \
1581     DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
1582 
1583 /**
1584  * Inline helper functions
1585  */
1586 
1587 static inline void vmw_surface_unreference(struct vmw_surface **srf)
1588 {
1589     struct vmw_surface *tmp_srf = *srf;
1590     struct vmw_resource *res = &tmp_srf->res;
1591     *srf = NULL;
1592 
1593     vmw_resource_unreference(&res);
1594 }
1595 
1596 static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
1597 {
1598     (void) vmw_resource_reference(&srf->res);
1599     return srf;
1600 }
1601 
1602 static inline void vmw_bo_unreference(struct vmw_buffer_object **buf)
1603 {
1604     struct vmw_buffer_object *tmp_buf = *buf;
1605 
1606     *buf = NULL;
1607     if (tmp_buf != NULL)
1608         ttm_bo_put(&tmp_buf->base);
1609 }
1610 
1611 static inline struct vmw_buffer_object *
1612 vmw_bo_reference(struct vmw_buffer_object *buf)
1613 {
1614     ttm_bo_get(&buf->base);
1615     return buf;
1616 }
1617 
1618 static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv)
1619 {
1620     atomic_inc(&dev_priv->num_fifo_resources);
1621 }
1622 
1623 static inline void vmw_fifo_resource_dec(struct vmw_private *dev_priv)
1624 {
1625     atomic_dec(&dev_priv->num_fifo_resources);
1626 }
1627 
1628 /**
1629  * vmw_fifo_mem_read - Perform a MMIO read from the fifo memory
1630  *
1631  * @fifo_reg: The fifo register to read from
1632  *
1633  * This function is intended to be equivalent to ioread32() on
1634  * memremap'd memory, but without byteswapping.
1635  */
1636 static inline u32 vmw_fifo_mem_read(struct vmw_private *vmw, uint32 fifo_reg)
1637 {
1638     BUG_ON(vmw_is_svga_v3(vmw));
1639     return READ_ONCE(*(vmw->fifo_mem + fifo_reg));
1640 }
1641 
1642 /**
1643  * vmw_fifo_mem_write - Perform a MMIO write to volatile memory
1644  *
1645  * @addr: The fifo register to write to
1646  *
1647  * This function is intended to be equivalent to iowrite32 on
1648  * memremap'd memory, but without byteswapping.
1649  */
1650 static inline void vmw_fifo_mem_write(struct vmw_private *vmw, u32 fifo_reg,
1651                       u32 value)
1652 {
1653     BUG_ON(vmw_is_svga_v3(vmw));
1654     WRITE_ONCE(*(vmw->fifo_mem + fifo_reg), value);
1655 }
1656 
1657 static inline u32 vmw_fence_read(struct vmw_private *dev_priv)
1658 {
1659     u32 fence;
1660     if (vmw_is_svga_v3(dev_priv))
1661         fence = vmw_read(dev_priv, SVGA_REG_FENCE);
1662     else
1663         fence = vmw_fifo_mem_read(dev_priv, SVGA_FIFO_FENCE);
1664     return fence;
1665 }
1666 
1667 static inline void vmw_fence_write(struct vmw_private *dev_priv,
1668                   u32 fence)
1669 {
1670     BUG_ON(vmw_is_svga_v3(dev_priv));
1671     vmw_fifo_mem_write(dev_priv, SVGA_FIFO_FENCE, fence);
1672 }
1673 
1674 static inline u32 vmw_irq_status_read(struct vmw_private *vmw)
1675 {
1676     u32 status;
1677     if (vmw_is_svga_v3(vmw))
1678         status = vmw_read(vmw, SVGA_REG_IRQ_STATUS);
1679     else
1680         status = inl(vmw->io_start + SVGA_IRQSTATUS_PORT);
1681     return status;
1682 }
1683 
1684 static inline void vmw_irq_status_write(struct vmw_private *vmw,
1685                     uint32 status)
1686 {
1687     if (vmw_is_svga_v3(vmw))
1688         vmw_write(vmw, SVGA_REG_IRQ_STATUS, status);
1689     else
1690         outl(status, vmw->io_start + SVGA_IRQSTATUS_PORT);
1691 }
1692 
1693 static inline bool vmw_has_fences(struct vmw_private *vmw)
1694 {
1695     if ((vmw->capabilities & (SVGA_CAP_COMMAND_BUFFERS |
1696                   SVGA_CAP_CMD_BUFFERS_2)) != 0)
1697         return true;
1698     return (vmw_fifo_caps(vmw) & SVGA_FIFO_CAP_FENCE) != 0;
1699 }
1700 
1701 #endif
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