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1 /**********************************************************
2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
3  *
4  * Permission is hereby granted, free of charge, to any person
5  * obtaining a copy of this software and associated documentation
6  * files (the "Software"), to deal in the Software without
7  * restriction, including without limitation the rights to use, copy,
8  * modify, merge, publish, distribute, sublicense, and/or sell copies
9  * of the Software, and to permit persons to whom the Software is
10  * furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be
13  * included in all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  * SOFTWARE.
23  *
24  **********************************************************/
25 
26 /**
27  * @file
28  * VMware SVGA specific winsys interface.
29  *
30  * @author Jose Fonseca <jfonseca@vmware.com>
31  *
32  * Documentation taken from the VMware SVGA DDK.
33  */
34 
35 #ifndef SVGA_WINSYS_H_
36 #define SVGA_WINSYS_H_
37 
38 #include "svga_types.h"
39 #include "svga3d_types.h"
40 #include "svga_reg.h"
41 #include "svga3d_reg.h"
42 
43 #include "pipe/p_compiler.h"
44 #include "pipe/p_defines.h"
45 
46 #include "svga_mksstats.h"
47 
48 struct svga_winsys_screen;
49 struct svga_winsys_buffer;
50 struct pipe_screen;
51 struct pipe_context;
52 struct util_debug_callback;
53 struct pipe_fence_handle;
54 struct pipe_resource;
55 struct svga_region;
56 struct winsys_handle;
57 
58 
59 #define SVGA_BUFFER_USAGE_PINNED  (1 << 0)
60 #define SVGA_BUFFER_USAGE_WRAPPED (1 << 1)
61 #define SVGA_BUFFER_USAGE_SHADER  (1 << 2)
62 
63 /**
64  * Relocation flags to help with dirty tracking
65  * SVGA_RELOC_WRITE -   The command will cause a GPU write to this
66  *                      resource.
67  * SVGA_RELOC_READ -    The command will cause a GPU read from this
68  *                      resource.
69  * SVGA_RELOC_INTERNAL  The command will only transfer data internally
70  *                      within the resource, and optionally clear
71  *                      dirty bits
72  * SVGA_RELOC_DMA -     Only set for resource buffer DMA uploads for winsys
73  *                      implementations that want to track the amount
74  *                      of such data referenced in the command stream.
75  */
76 #define SVGA_RELOC_WRITE          (1 << 0)
77 #define SVGA_RELOC_READ           (1 << 1)
78 #define SVGA_RELOC_INTERNAL       (1 << 2)
79 #define SVGA_RELOC_DMA            (1 << 3)
80 
81 #define SVGA_FENCE_FLAG_EXEC      (1 << 0)
82 #define SVGA_FENCE_FLAG_QUERY     (1 << 1)
83 
84 #define SVGA_SURFACE_USAGE_SHARED   (1 << 0)
85 #define SVGA_SURFACE_USAGE_SCANOUT  (1 << 1)
86 #define SVGA_SURFACE_USAGE_COHERENT (1 << 2)
87 
88 #define SVGA_QUERY_FLAG_SET        (1 << 0)
89 #define SVGA_QUERY_FLAG_REF        (1 << 1)
90 
91 #define SVGA_HINT_FLAG_CAN_PRE_FLUSH   (1 << 0)  /* Can preemptively flush */
92 #define SVGA_HINT_FLAG_EXPORT_FENCE_FD (1 << 1)  /* Export a Fence FD */
93 
94 /**
95  * SVGA mks statistics info
96  */
97 struct svga_winsys_stats_timeframe {
98    void *counterTime;
99    uint64 startTime;
100    uint64 adjustedStartTime;
101    struct svga_winsys_stats_timeframe *enclosing;
102 
103    struct svga_winsys_screen *sws;
104    int32 slot;
105 };
106 
107 enum svga_stats_count {
108    SVGA_STATS_COUNT_BLENDSTATE,
109    SVGA_STATS_COUNT_BLITBLITTERCOPY,
110    SVGA_STATS_COUNT_DEPTHSTENCILSTATE,
111    SVGA_STATS_COUNT_RASTERIZERSTATE,
112    SVGA_STATS_COUNT_RAWBUFFERSRVIEW,
113    SVGA_STATS_COUNT_SAMPLER,
114    SVGA_STATS_COUNT_SAMPLERVIEW,
115    SVGA_STATS_COUNT_SURFACEWRITEFLUSH,
116    SVGA_STATS_COUNT_TEXREADBACK,
117    SVGA_STATS_COUNT_VERTEXELEMENT,
118    SVGA_STATS_COUNT_MAX
119 };
120 
121 enum svga_stats_time {
122    SVGA_STATS_TIME_BLIT,
123    SVGA_STATS_TIME_BLITBLITTER,
124    SVGA_STATS_TIME_BLITFALLBACK,
125    SVGA_STATS_TIME_BUFFERSFLUSH,
126    SVGA_STATS_TIME_BUFFERTRANSFERMAP,
127    SVGA_STATS_TIME_BUFFERTRANSFERUNMAP,
128    SVGA_STATS_TIME_CONTEXTFINISH,
129    SVGA_STATS_TIME_CONTEXTFLUSH,
130    SVGA_STATS_TIME_COPYREGION,
131    SVGA_STATS_TIME_COPYREGIONFALLBACK,
132    SVGA_STATS_TIME_CREATEBACKEDSURFACEVIEW,
133    SVGA_STATS_TIME_CREATEBUFFER,
134    SVGA_STATS_TIME_CREATECONTEXT,
135    SVGA_STATS_TIME_CREATECS,
136    SVGA_STATS_TIME_CREATEFS,
137    SVGA_STATS_TIME_CREATEGS,
138    SVGA_STATS_TIME_CREATESURFACE,
139    SVGA_STATS_TIME_CREATESURFACEVIEW,
140    SVGA_STATS_TIME_CREATETCS,
141    SVGA_STATS_TIME_CREATETES,
142    SVGA_STATS_TIME_CREATETEXTURE,
143    SVGA_STATS_TIME_CREATEVS,
144    SVGA_STATS_TIME_DEFINESHADER,
145    SVGA_STATS_TIME_DESTROYSURFACE,
146    SVGA_STATS_TIME_DRAWVBO,
147    SVGA_STATS_TIME_DRAWARRAYS,
148    SVGA_STATS_TIME_DRAWELEMENTS,
149    SVGA_STATS_TIME_EMITCS,
150    SVGA_STATS_TIME_EMITFS,
151    SVGA_STATS_TIME_EMITGS,
152    SVGA_STATS_TIME_EMITRAWBUFFER,
153    SVGA_STATS_TIME_EMITTCS,
154    SVGA_STATS_TIME_EMITTES,
155    SVGA_STATS_TIME_EMITVS,
156    SVGA_STATS_TIME_EMULATESURFACEVIEW,
157    SVGA_STATS_TIME_FENCEFINISH,
158    SVGA_STATS_TIME_GENERATEINDICES,
159    SVGA_STATS_TIME_HWTNLDRAWARRAYS,
160    SVGA_STATS_TIME_HWTNLDRAWELEMENTS,
161    SVGA_STATS_TIME_HWTNLFLUSH,
162    SVGA_STATS_TIME_HWTNLPRIM,
163    SVGA_STATS_TIME_LAUNCHGRID,
164    SVGA_STATS_TIME_PROPAGATESURFACE,
165    SVGA_STATS_TIME_SETSAMPLERVIEWS,
166    SVGA_STATS_TIME_SURFACEFLUSH,
167    SVGA_STATS_TIME_SWTNLDRAWVBO,
168    SVGA_STATS_TIME_SWTNLUPDATEDRAW,
169    SVGA_STATS_TIME_SWTNLUPDATEVDECL,
170    SVGA_STATS_TIME_TEXTRANSFERMAP,
171    SVGA_STATS_TIME_TEXTRANSFERUNMAP,
172    SVGA_STATS_TIME_TGSIVGPU10TRANSLATE,
173    SVGA_STATS_TIME_TGSIVGPU9TRANSLATE,
174    SVGA_STATS_TIME_UPDATECSUAV,
175    SVGA_STATS_TIME_UPDATESTATE,
176    SVGA_STATS_TIME_UPDATEUAV,
177    SVGA_STATS_TIME_VALIDATESURFACEVIEW,
178    SVGA_STATS_TIME_VBUFDRAWARRAYS,
179    SVGA_STATS_TIME_VBUFDRAWELEMENTS,
180    SVGA_STATS_TIME_VBUFRENDERALLOCVERT,
181    SVGA_STATS_TIME_VBUFRENDERMAPVERT,
182    SVGA_STATS_TIME_VBUFRENDERUNMAPVERT,
183    SVGA_STATS_TIME_VBUFSUBMITSTATE,
184    SVGA_STATS_TIME_MAX
185 };
186 
187 #define SVGA_STATS_PREFIX "GuestGL_"
188 
189 #define SVGA_STATS_COUNT_NAMES                \
190    SVGA_STATS_PREFIX "BlendState",            \
191    SVGA_STATS_PREFIX "BlitBlitterCopy",       \
192    SVGA_STATS_PREFIX "DepthStencilState",     \
193    SVGA_STATS_PREFIX "RasterizerState",       \
194    SVGA_STATS_PREFIX "RawBufferSRView",       \
195    SVGA_STATS_PREFIX "Sampler",               \
196    SVGA_STATS_PREFIX "SamplerView",           \
197    SVGA_STATS_PREFIX "SurfaceWriteFlush",     \
198    SVGA_STATS_PREFIX "TextureReadback",       \
199    SVGA_STATS_PREFIX "VertexElement"          \
200 
201 #define SVGA_STATS_TIME_NAMES                       \
202    SVGA_STATS_PREFIX "Blit",                        \
203    SVGA_STATS_PREFIX "BlitBlitter",                 \
204    SVGA_STATS_PREFIX "BlitFallback",                \
205    SVGA_STATS_PREFIX "BuffersFlush",                \
206    SVGA_STATS_PREFIX "BufferTransferMap",           \
207    SVGA_STATS_PREFIX "BufferTransferUnmap",         \
208    SVGA_STATS_PREFIX "ContextFinish",               \
209    SVGA_STATS_PREFIX "ContextFlush",                \
210    SVGA_STATS_PREFIX "CopyRegion",                  \
211    SVGA_STATS_PREFIX "CopyRegionFallback",          \
212    SVGA_STATS_PREFIX "CreateBackedSurfaceView",     \
213    SVGA_STATS_PREFIX "CreateBuffer",                \
214    SVGA_STATS_PREFIX "CreateContext",               \
215    SVGA_STATS_PREFIX "CreateCS",                    \
216    SVGA_STATS_PREFIX "CreateFS",                    \
217    SVGA_STATS_PREFIX "CreateGS",                    \
218    SVGA_STATS_PREFIX "CreateSurface",               \
219    SVGA_STATS_PREFIX "CreateSurfaceView",           \
220    SVGA_STATS_PREFIX "CreateTCS",                   \
221    SVGA_STATS_PREFIX "CreateTES",                   \
222    SVGA_STATS_PREFIX "CreateTexture",               \
223    SVGA_STATS_PREFIX "CreateVS",                    \
224    SVGA_STATS_PREFIX "DefineShader",                \
225    SVGA_STATS_PREFIX "DestroySurface",              \
226    SVGA_STATS_PREFIX "DrawVBO",                     \
227    SVGA_STATS_PREFIX "DrawArrays",                  \
228    SVGA_STATS_PREFIX "DrawElements",                \
229    SVGA_STATS_PREFIX "EmitCS",                      \
230    SVGA_STATS_PREFIX "EmitFS",                      \
231    SVGA_STATS_PREFIX "EmitGS",                      \
232    SVGA_STATS_PREFIX "EmitRawBuffer",               \
233    SVGA_STATS_PREFIX "EmitTCS",                     \
234    SVGA_STATS_PREFIX "EmitTES",                     \
235    SVGA_STATS_PREFIX "EmitVS",                      \
236    SVGA_STATS_PREFIX "EmulateSurfaceView",          \
237    SVGA_STATS_PREFIX "FenceFinish",                 \
238    SVGA_STATS_PREFIX "GenerateIndices",             \
239    SVGA_STATS_PREFIX "HWtnlDrawArrays",             \
240    SVGA_STATS_PREFIX "HWtnlDrawElements",           \
241    SVGA_STATS_PREFIX "HWtnlFlush",                  \
242    SVGA_STATS_PREFIX "HWtnlPrim",                   \
243    SVGA_STATS_PREFIX "LaunchGrid",                  \
244    SVGA_STATS_PREFIX "PropagateSurface",            \
245    SVGA_STATS_PREFIX "SetSamplerViews",             \
246    SVGA_STATS_PREFIX "SurfaceFlush",                \
247    SVGA_STATS_PREFIX "SwtnlDrawVBO",                \
248    SVGA_STATS_PREFIX "SwtnlUpdateDraw",             \
249    SVGA_STATS_PREFIX "SwtnlUpdateVDecl",            \
250    SVGA_STATS_PREFIX "TextureTransferMap",          \
251    SVGA_STATS_PREFIX "TextureTransferUnmap",        \
252    SVGA_STATS_PREFIX "TGSIVGPU10Translate",         \
253    SVGA_STATS_PREFIX "TGSIVGPU9Translate",          \
254    SVGA_STATS_PREFIX "UpdateCSUAV",                 \
255    SVGA_STATS_PREFIX "UpdateState",                 \
256    SVGA_STATS_PREFIX "UpdateUAV",                   \
257    SVGA_STATS_PREFIX "ValidateSurfaceView",         \
258    SVGA_STATS_PREFIX "VbufDrawArrays",              \
259    SVGA_STATS_PREFIX "VbufDrawElements",            \
260    SVGA_STATS_PREFIX "VbufRenderAllocVertices",     \
261    SVGA_STATS_PREFIX "VbufRenderMapVertices",       \
262    SVGA_STATS_PREFIX "VbufRenderUnmapVertices",     \
263    SVGA_STATS_PREFIX "VbufSubmitState"
264 
265 
266 /** Opaque surface handle */
267 struct svga_winsys_surface;
268 
269 /** Opaque guest-backed objects */
270 struct svga_winsys_gb_shader;
271 struct svga_winsys_gb_query;
272 
273 
274 /**
275  * SVGA per-context winsys interface.
276  */
277 struct svga_winsys_context
278 {
279    void
280    (*destroy)(struct svga_winsys_context *swc);
281 
282    void *
283    (*reserve)(struct svga_winsys_context *swc,
284               uint32_t nr_bytes, uint32_t nr_relocs );
285 
286    /**
287     * Returns current size of command buffer, in bytes.
288     */
289    unsigned
290    (*get_command_buffer_size)(struct svga_winsys_context *swc);
291 
292    /**
293     * Emit a relocation for a host surface.
294     *
295     * @param flags bitmask of SVGA_RELOC_* flags
296     *
297     * NOTE: Order of this call does matter. It should be the same order
298     * as relocations appear in the command buffer.
299     */
300    void
301    (*surface_relocation)(struct svga_winsys_context *swc,
302                          uint32 *sid,
303                          uint32 *mobid,
304                          struct svga_winsys_surface *surface,
305                          unsigned flags);
306 
307    /**
308     * Emit a relocation for a guest memory region.
309     *
310     * @param flags bitmask of SVGA_RELOC_* flags
311     *
312     * NOTE: Order of this call does matter. It should be the same order
313     * as relocations appear in the command buffer.
314     */
315    void
316    (*region_relocation)(struct svga_winsys_context *swc,
317                         struct SVGAGuestPtr *ptr,
318                         struct svga_winsys_buffer *buffer,
319                         uint32 offset,
320                         unsigned flags);
321 
322    /**
323     * Emit a relocation for a guest-backed shader object.
324     *
325     * NOTE: Order of this call does matter. It should be the same order
326     * as relocations appear in the command buffer.
327     */
328    void
329    (*shader_relocation)(struct svga_winsys_context *swc,
330                         uint32 *shid,
331                         uint32 *mobid,
332                         uint32 *offset,
333                         struct svga_winsys_gb_shader *shader,
334                         unsigned flags);
335 
336    /**
337     * Emit a relocation for a guest-backed context.
338     *
339     * NOTE: Order of this call does matter. It should be the same order
340     * as relocations appear in the command buffer.
341     */
342    void
343    (*context_relocation)(struct svga_winsys_context *swc, uint32 *cid);
344 
345    /**
346     * Emit a relocation for a guest Memory OBject.
347     *
348     * @param flags bitmask of SVGA_RELOC_* flags
349     * @param offset_into_mob Buffer starts at this offset into the MOB.
350     *
351     * Note that not all commands accept an offset into the MOB and
352     * those commands can't use suballocated buffer pools. To trap
353     * errors from improper buffer pool usage, set the offset_into_mob
354     * pointer to NULL.
355     */
356    void
357    (*mob_relocation)(struct svga_winsys_context *swc,
358                      SVGAMobId *id,
359                      uint32 *offset_into_mob,
360                      struct svga_winsys_buffer *buffer,
361                      uint32 offset,
362                      unsigned flags);
363 
364    /**
365     * Emit a relocation for a guest-backed query object.
366     *
367     * NOTE: Order of this call does matter. It should be the same order
368     * as relocations appear in the command buffer.
369     */
370    void
371    (*query_relocation)(struct svga_winsys_context *swc,
372                        SVGAMobId *id,
373                        struct svga_winsys_gb_query *query);
374 
375    /**
376     * Bind queries to context.
377     * \param flags  exactly one of SVGA_QUERY_FLAG_SET/REF
378     */
379    enum pipe_error
380    (*query_bind)(struct svga_winsys_context *sws,
381                  struct svga_winsys_gb_query *query,
382                  unsigned flags);
383 
384    void
385    (*commit)(struct svga_winsys_context *swc);
386 
387    enum pipe_error
388    (*flush)(struct svga_winsys_context *swc,
389             struct pipe_fence_handle **pfence);
390 
391    /**
392     * Context ID used to fill in the commands
393     *
394     * Context IDs are arbitrary small non-negative integers,
395     * global to the entire SVGA device.
396     */
397    uint32 cid;
398 
399    /**
400     * Flags to hint the current context state
401     */
402    uint32 hints;
403 
404    /**
405     * File descriptor for imported fence
406     */
407    int32 imported_fence_fd;
408 
409    /**
410     ** BEGIN new functions for guest-backed surfaces.
411     **/
412 
413    boolean have_gb_objects;
414    boolean force_coherent;
415 
416    /**
417     * Map a guest-backed surface.
418     * \param swc The winsys context
419     * \param surface The surface to map
420     * \param flags  bitmask of PIPE_MAP_x flags
421     * \param retry Whether to flush and retry the map
422     * \param rebind Whether to issue an immediate rebind and flush.
423     *
424     * The surface_map() member is allowed to fail due to a
425     * shortage of command buffer space, if the
426     * PIPE_MAP_DISCARD_WHOLE_RESOURCE bit is set in flags.
427     * In that case, the caller must flush the current command
428     * buffer and reissue the map.
429     */
430    void *
431    (*surface_map)(struct svga_winsys_context *swc,
432                   struct svga_winsys_surface *surface,
433                   unsigned flags, boolean *retry,
434                   boolean *rebind);
435 
436    /**
437     * Unmap a guest-backed surface.
438     * \param rebind  returns a flag indicating whether the caller should
439     *                issue a SVGA3D_BindGBSurface() call.
440     */
441    void
442    (*surface_unmap)(struct svga_winsys_context *swc,
443                     struct svga_winsys_surface *surface,
444                     boolean *rebind);
445 
446    /**
447     * Create and define a DX GB shader that resides in the device COTable.
448     * Caller of this function will issue the DXDefineShader command.
449     */
450    struct svga_winsys_gb_shader *
451    (*shader_create)(struct svga_winsys_context *swc,
452                     uint32 shaderId,
453                     SVGA3dShaderType shaderType,
454                     const uint32 *bytecode,
455                     uint32 bytecodeLen,
456                     const SVGA3dDXShaderSignatureHeader *sgnInfo,
457                     uint32 sgnLen);
458 
459    /**
460     * Destroy a DX GB shader.
461     * This function will issue the DXDestroyShader command.
462     */
463    void
464    (*shader_destroy)(struct svga_winsys_context *swc,
465                      struct svga_winsys_gb_shader *shader);
466 
467    /**
468     * Rebind a DX GB resource to a context.
469     * This is called to reference a DX GB resource in the command stream in
470     * order to page in the associated resource in case the memory has been
471     * paged out, and to fence it if necessary after command submission.
472     */
473    enum pipe_error
474    (*resource_rebind)(struct svga_winsys_context *swc,
475                       struct svga_winsys_surface *surface,
476                       struct svga_winsys_gb_shader *shader,
477                       unsigned flags);
478 
479    /** To report perf/conformance/etc issues to the gallium frontend */
480    struct util_debug_callback *debug_callback;
481 
482    /** The more recent command issued to command buffer */
483    SVGAFifo3dCmdId last_command;
484 
485    /** For HUD queries */
486    uint64_t num_commands;
487    uint64_t num_command_buffers;
488    uint64_t num_draw_commands;
489    uint64_t num_shader_reloc;
490    uint64_t num_surf_reloc;
491 
492    /* Whether we are in retry processing */
493    unsigned int in_retry;
494 };
495 
496 
497 /**
498  * SVGA per-screen winsys interface.
499  */
500 struct svga_winsys_screen
501 {
502    void
503    (*destroy)(struct svga_winsys_screen *sws);
504 
505    SVGA3dHardwareVersion
506    (*get_hw_version)(struct svga_winsys_screen *sws);
507 
508    boolean
509    (*get_cap)(struct svga_winsys_screen *sws,
510               SVGA3dDevCapIndex index,
511               SVGA3dDevCapResult *result);
512 
513    /**
514     * Create a new context.
515     *
516     * Context objects encapsulate all render state, and shader
517     * objects are per-context.
518     *
519     * Surfaces are not per-context. The same surface can be shared
520     * between multiple contexts, and surface operations can occur
521     * without a context.
522     */
523    struct svga_winsys_context *
524    (*context_create)(struct svga_winsys_screen *sws);
525 
526    /**
527     * This creates a "surface" object in the SVGA3D device.
528     *
529     * \param sws Pointer to an svga_winsys_context
530     * \param flags Device surface create flags
531     * \param format Format Device surface format
532     * \param usage Winsys usage: bitmask of SVGA_SURFACE_USAGE_x flags
533     * \param size Surface size given in device format
534     * \param numLayers Number of layers of the surface (or cube faces)
535     * \param numMipLevels Number of mipmap levels for each face
536     *
537     * Returns the surface ID (sid). Surfaces are generic
538     * containers for host VRAM objects like textures, vertex
539     * buffers, and depth/stencil buffers.
540     *
541     * Surfaces are hierarchial:
542     *
543     * - Surface may have multiple faces (for cube maps)
544     *
545     * - Each face has a list of mipmap levels
546     *
547     * - Each mipmap image may have multiple volume
548     *   slices for 3D image, or multiple 2D slices for texture array.
549     *
550     * - Each slice is a 2D array of 'blocks'
551     *
552     * - Each block may be one or more pixels.
553     *   (Usually 1, more for DXT or YUV formats.)
554     *
555     * Surfaces are generic host VRAM objects. The SVGA3D device
556     * may optimize surfaces according to the format they were
557     * created with, but this format does not limit the ways in
558     * which the surface may be used. For example, a depth surface
559     * can be used as a texture, or a floating point image may
560     * be used as a vertex buffer. Some surface usages may be
561     * lower performance, due to software emulation, but any
562     * usage should work with any surface.
563     */
564    struct svga_winsys_surface *
565    (*surface_create)(struct svga_winsys_screen *sws,
566                      SVGA3dSurfaceAllFlags flags,
567                      SVGA3dSurfaceFormat format,
568                      unsigned usage,
569                      SVGA3dSize size,
570                      uint32 numLayers,
571                      uint32 numMipLevels,
572                      unsigned sampleCount);
573 
574    /**
575     * Creates a surface from a winsys handle.
576     * Used to implement pipe_screen::resource_from_handle.
577     */
578    struct svga_winsys_surface *
579    (*surface_from_handle)(struct svga_winsys_screen *sws,
580                           struct winsys_handle *whandle,
581                           SVGA3dSurfaceFormat *format);
582 
583    /**
584     * Get a winsys_handle from a surface.
585     * Used to implement pipe_screen::resource_get_handle.
586     */
587    boolean
588    (*surface_get_handle)(struct svga_winsys_screen *sws,
589                          struct svga_winsys_surface *surface,
590                          unsigned stride,
591                          struct winsys_handle *whandle);
592 
593    /**
594     * Whether this surface is sitting in a validate list
595     */
596    boolean
597    (*surface_is_flushed)(struct svga_winsys_screen *sws,
598                          struct svga_winsys_surface *surface);
599 
600    /**
601     * Reference a SVGA3D surface object. This allows sharing of a
602     * surface between different objects.
603     */
604    void
605    (*surface_reference)(struct svga_winsys_screen *sws,
606                         struct svga_winsys_surface **pdst,
607                         struct svga_winsys_surface *src);
608 
609    /**
610     * Check if a resource (texture, buffer) of the given size
611     * and format can be created.
612     * \Return TRUE if OK, FALSE if too large.
613     */
614    boolean
615    (*surface_can_create)(struct svga_winsys_screen *sws,
616                          SVGA3dSurfaceFormat format,
617                          SVGA3dSize size,
618                          uint32 numLayers,
619                          uint32 numMipLevels,
620                          uint32 numSamples);
621 
622    void
623    (*surface_init)(struct svga_winsys_screen *sws,
624                    struct svga_winsys_surface *surface,
625                    unsigned surf_size, SVGA3dSurfaceAllFlags flags);
626 
627    /**
628     * Buffer management. Buffer attributes are mostly fixed over its lifetime.
629     *
630     * @param usage bitmask of SVGA_BUFFER_USAGE_* flags.
631     *
632     * alignment indicates the client's alignment requirements, eg for
633     * SSE instructions.
634     */
635    struct svga_winsys_buffer *
636    (*buffer_create)( struct svga_winsys_screen *sws,
637                      unsigned alignment,
638                      unsigned usage,
639                      unsigned size );
640 
641    /**
642     * Map the entire data store of a buffer object into the client's address.
643     * usage is a bitmask of PIPE_MAP_*
644     */
645    void *
646    (*buffer_map)( struct svga_winsys_screen *sws,
647                   struct svga_winsys_buffer *buf,
648                   unsigned usage );
649 
650    void
651    (*buffer_unmap)( struct svga_winsys_screen *sws,
652                     struct svga_winsys_buffer *buf );
653 
654    void
655    (*buffer_destroy)( struct svga_winsys_screen *sws,
656                       struct svga_winsys_buffer *buf );
657 
658 
659    /**
660     * Reference a fence object.
661     */
662    void
663    (*fence_reference)( struct svga_winsys_screen *sws,
664                        struct pipe_fence_handle **pdst,
665                        struct pipe_fence_handle *src );
666 
667    /**
668     * Checks whether the fence has been signalled.
669     * \param flags  driver-specific meaning
670     * \return zero on success.
671     */
672    int (*fence_signalled)( struct svga_winsys_screen *sws,
673                            struct pipe_fence_handle *fence,
674                            unsigned flag );
675 
676    /**
677     * Wait for the fence to finish.
678     * \param timeout in nanoseconds (may be PIPE_TIMEOUT_INFINITE).
679     *                0 to return immediately, if the API suports it.
680     * \param flags  driver-specific meaning
681     * \return zero on success.
682     */
683    int (*fence_finish)( struct svga_winsys_screen *sws,
684                         struct pipe_fence_handle *fence,
685                         uint64_t timeout,
686                         unsigned flag );
687 
688    /**
689     * Get the file descriptor associated with the fence
690     * \param duplicate duplicate the fd before returning it
691     * \return zero on success.
692     */
693    int (*fence_get_fd)( struct svga_winsys_screen *sws,
694                         struct pipe_fence_handle *fence,
695                         boolean duplicate );
696 
697    /**
698     * Create a fence using the given file descriptor
699     * \return zero on success.
700     */
701    void (*fence_create_fd)( struct svga_winsys_screen *sws,
702                             struct pipe_fence_handle **fence,
703                             int32_t fd );
704 
705    /**
706     * Accumulates fence FD from other devices into the current context
707     * \param context_fd FD the context will be waiting on
708     * \return zero on success
709     */
710    int (*fence_server_sync)( struct svga_winsys_screen *sws,
711                              int32_t *context_fd,
712                              struct pipe_fence_handle *fence );
713 
714    /**
715     ** BEGIN new functions for guest-backed surfaces.
716     **/
717 
718    /** Are guest-backed objects enabled? */
719    bool have_gb_objects;
720 
721    /** Can we do DMA with guest-backed objects enabled? */
722    bool have_gb_dma;
723 
724    /** Do we support coherent surface memory? */
725    bool have_coherent;
726    /**
727     * Create and define a GB shader.
728     */
729    struct svga_winsys_gb_shader *
730    (*shader_create)(struct svga_winsys_screen *sws,
731                     SVGA3dShaderType shaderType,
732                     const uint32 *bytecode,
733                     uint32 bytecodeLen);
734 
735    /**
736     * Destroy a GB shader. It's safe to call this function even
737     * if the shader is referenced in a context's command stream.
738     */
739    void
740    (*shader_destroy)(struct svga_winsys_screen *sws,
741                      struct svga_winsys_gb_shader *shader);
742 
743    /**
744     * Create and define a GB query.
745     */
746    struct svga_winsys_gb_query *
747    (*query_create)(struct svga_winsys_screen *sws, uint32 len);
748 
749    /**
750     * Destroy a GB query.
751     */
752    void
753    (*query_destroy)(struct svga_winsys_screen *sws,
754                     struct svga_winsys_gb_query *query);
755 
756    /**
757     * Initialize the query state of the query that resides in the slot
758     * specified in offset
759     * \return zero on success.
760     */
761    int
762    (*query_init)(struct svga_winsys_screen *sws,
763                        struct svga_winsys_gb_query *query,
764                        unsigned offset,
765                        SVGA3dQueryState queryState);
766 
767    /**
768     * Inquire for the query state and result of the query that resides
769     * in the slot specified in offset
770     */
771    void
772    (*query_get_result)(struct svga_winsys_screen *sws,
773                        struct svga_winsys_gb_query *query,
774                        unsigned offset,
775                        SVGA3dQueryState *queryState,
776                        void *result, uint32 resultLen);
777 
778    /**
779     * Increment a statistic counter
780     */
781    void
782    (*stats_inc)(struct svga_winsys_screen *, enum svga_stats_count);
783 
784    /**
785     * Push a time frame onto the stack
786     */
787    void
788    (*stats_time_push)(struct svga_winsys_screen *, enum svga_stats_time, struct svga_winsys_stats_timeframe *);
789 
790    /**
791     * Pop a time frame.
792     */
793    void
794    (*stats_time_pop)(struct svga_winsys_screen *);
795 
796    /**
797     * Send a host log message
798     */
799    void
800    (*host_log)(struct svga_winsys_screen *sws, const char *message);
801 
802    /** Have VGPU v10 hardware? */
803    boolean have_vgpu10;
804 
805    /** Have SM4_1 hardware? */
806    boolean have_sm4_1;
807 
808    /** Have SM5 hardware? */
809    boolean have_sm5;
810 
811    /** To rebind resources at the beginning of a new command buffer */
812    boolean need_to_rebind_resources;
813 
814    boolean have_generate_mipmap_cmd;
815    boolean have_set_predication_cmd;
816    boolean have_transfer_from_buffer_cmd;
817    boolean have_fence_fd;
818    boolean have_intra_surface_copy;
819    boolean have_constant_buffer_offset_cmd;
820    boolean have_index_vertex_buffer_offset_cmd;
821 
822    /* Have rasterizer state v2 command support */
823    boolean have_rasterizer_state_v2_cmd;
824 
825    /** Have GL43 capable device */
826    boolean have_gl43;
827 
828    /** SVGA device_id version we're running on */
829    uint16_t device_id;
830 };
831 
832 
833 struct svga_winsys_screen *
834 svga_winsys_screen(struct pipe_screen *screen);
835 
836 struct svga_winsys_context *
837 svga_winsys_context(struct pipe_context *context);
838 
839 struct pipe_resource *
840 svga_screen_buffer_wrap_surface(struct pipe_screen *screen,
841                                 enum SVGA3dSurfaceFormat format,
842                                 struct svga_winsys_surface *srf);
843 
844 struct svga_winsys_surface *
845 svga_screen_buffer_get_winsys_surface(struct pipe_resource *buffer);
846 
847 #endif /* SVGA_WINSYS_H_ */
848