1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
29 #include "main/imports.h"
30 #include "main/mtypes.h"
31 #include "main/macros.h"
32 #include "main/bufferobj.h"
34 #include "intel_blit.h"
35 #include "intel_buffer_objects.h"
36 #include "intel_batchbuffer.h"
37 #include "intel_context.h"
38 #include "intel_fbo.h"
39 #include "intel_mipmap_tree.h"
40 #include "intel_regions.h"
43 intel_bufferobj_unmap(GLcontext
* ctx
,
44 GLenum target
, struct gl_buffer_object
*obj
);
46 /** Allocates a new drm_intel_bo to store the data for the buffer object. */
48 intel_bufferobj_alloc_buffer(struct intel_context
*intel
,
49 struct intel_buffer_object
*intel_obj
)
51 intel_obj
->buffer
= drm_intel_bo_alloc(intel
->bufmgr
, "bufferobj",
52 intel_obj
->Base
.Size
, 64);
56 * There is some duplication between mesa's bufferobjects and our
57 * bufmgr buffers. Both have an integer handle and a hashtable to
58 * lookup an opaque structure. It would be nice if the handles and
59 * internal structure where somehow shared.
61 static struct gl_buffer_object
*
62 intel_bufferobj_alloc(GLcontext
* ctx
, GLuint name
, GLenum target
)
64 struct intel_buffer_object
*obj
= CALLOC_STRUCT(intel_buffer_object
);
66 _mesa_initialize_buffer_object(&obj
->Base
, name
, target
);
73 /* Break the COW tie to the region. The region gets to keep the data.
76 intel_bufferobj_release_region(struct intel_context
*intel
,
77 struct intel_buffer_object
*intel_obj
)
79 assert(intel_obj
->region
->buffer
== intel_obj
->buffer
);
80 intel_obj
->region
->pbo
= NULL
;
81 intel_obj
->region
= NULL
;
83 drm_intel_bo_unreference(intel_obj
->buffer
);
84 intel_obj
->buffer
= NULL
;
87 /* Break the COW tie to the region. Both the pbo and the region end
88 * up with a copy of the data.
91 intel_bufferobj_cow(struct intel_context
*intel
,
92 struct intel_buffer_object
*intel_obj
)
94 assert(intel_obj
->region
);
95 intel_region_cow(intel
, intel_obj
->region
);
100 * Deallocate/free a vertex/pixel buffer object.
101 * Called via glDeleteBuffersARB().
104 intel_bufferobj_free(GLcontext
* ctx
, struct gl_buffer_object
*obj
)
106 struct intel_context
*intel
= intel_context(ctx
);
107 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
111 /* Buffer objects are automatically unmapped when deleting according
112 * to the spec, but Mesa doesn't do UnmapBuffer for us at context destroy
113 * (though it does if you call glDeleteBuffers)
116 intel_bufferobj_unmap(ctx
, 0, obj
);
118 free(intel_obj
->sys_buffer
);
119 if (intel_obj
->region
) {
120 intel_bufferobj_release_region(intel
, intel_obj
);
122 else if (intel_obj
->buffer
) {
123 drm_intel_bo_unreference(intel_obj
->buffer
);
132 * Allocate space for and store data in a buffer object. Any data that was
133 * previously stored in the buffer object is lost. If data is NULL,
134 * memory will be allocated, but no copy will occur.
135 * Called via ctx->Driver.BufferData().
136 * \return GL_TRUE for success, GL_FALSE if out of memory
139 intel_bufferobj_data(GLcontext
* ctx
,
143 GLenum usage
, struct gl_buffer_object
*obj
)
145 struct intel_context
*intel
= intel_context(ctx
);
146 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
148 intel_obj
->Base
.Size
= size
;
149 intel_obj
->Base
.Usage
= usage
;
151 assert(!obj
->Pointer
); /* Mesa should have unmapped it */
153 if (intel_obj
->region
)
154 intel_bufferobj_release_region(intel
, intel_obj
);
156 if (intel_obj
->buffer
!= NULL
) {
157 drm_intel_bo_unreference(intel_obj
->buffer
);
158 intel_obj
->buffer
= NULL
;
160 free(intel_obj
->sys_buffer
);
161 intel_obj
->sys_buffer
= NULL
;
165 /* On pre-965, stick VBOs in system memory, as we're always doing swtnl
166 * with their contents anyway.
168 if (target
== GL_ARRAY_BUFFER
|| target
== GL_ELEMENT_ARRAY_BUFFER
) {
169 intel_obj
->sys_buffer
= malloc(size
);
170 if (intel_obj
->sys_buffer
!= NULL
) {
172 memcpy(intel_obj
->sys_buffer
, data
, size
);
177 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
178 if (!intel_obj
->buffer
)
182 drm_intel_bo_subdata(intel_obj
->buffer
, 0, size
, data
);
190 * Replace data in a subrange of buffer object. If the data range
191 * specified by size + offset extends beyond the end of the buffer or
192 * if data is NULL, no copy is performed.
193 * Called via glBufferSubDataARB().
196 intel_bufferobj_subdata(GLcontext
* ctx
,
200 const GLvoid
* data
, struct gl_buffer_object
*obj
)
202 struct intel_context
*intel
= intel_context(ctx
);
203 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
210 if (intel_obj
->region
)
211 intel_bufferobj_cow(intel
, intel_obj
);
213 if (intel_obj
->sys_buffer
)
214 memcpy((char *)intel_obj
->sys_buffer
+ offset
, data
, size
);
216 /* Flush any existing batchbuffer that might reference this data. */
217 if (drm_intel_bo_busy(intel_obj
->buffer
) ||
218 drm_intel_bo_references(intel
->batch
->buf
, intel_obj
->buffer
)) {
219 drm_intel_bo
*temp_bo
;
221 temp_bo
= drm_intel_bo_alloc(intel
->bufmgr
, "subdata temp", size
, 64);
223 drm_intel_bo_subdata(temp_bo
, 0, size
, data
);
225 intel_emit_linear_blit(intel
,
226 intel_obj
->buffer
, offset
,
230 drm_intel_bo_unreference(temp_bo
);
232 drm_intel_bo_subdata(intel_obj
->buffer
, offset
, size
, data
);
239 * Called via glGetBufferSubDataARB().
242 intel_bufferobj_get_subdata(GLcontext
* ctx
,
246 GLvoid
* data
, struct gl_buffer_object
*obj
)
248 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
251 if (intel_obj
->sys_buffer
)
252 memcpy(data
, (char *)intel_obj
->sys_buffer
+ offset
, size
);
254 drm_intel_bo_get_subdata(intel_obj
->buffer
, offset
, size
, data
);
260 * Called via glMapBufferARB().
263 intel_bufferobj_map(GLcontext
* ctx
,
265 GLenum access
, struct gl_buffer_object
*obj
)
267 struct intel_context
*intel
= intel_context(ctx
);
268 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
269 GLboolean read_only
= (access
== GL_READ_ONLY_ARB
);
270 GLboolean write_only
= (access
== GL_WRITE_ONLY_ARB
);
274 if (intel_obj
->sys_buffer
) {
275 obj
->Pointer
= intel_obj
->sys_buffer
;
276 obj
->Length
= obj
->Size
;
281 /* Flush any existing batchbuffer that might reference this data. */
282 if (drm_intel_bo_references(intel
->batch
->buf
, intel_obj
->buffer
))
285 if (intel_obj
->region
)
286 intel_bufferobj_cow(intel
, intel_obj
);
288 if (intel_obj
->buffer
== NULL
) {
294 drm_intel_gem_bo_map_gtt(intel_obj
->buffer
);
295 intel_obj
->mapped_gtt
= GL_TRUE
;
297 drm_intel_bo_map(intel_obj
->buffer
, !read_only
);
298 intel_obj
->mapped_gtt
= GL_FALSE
;
301 obj
->Pointer
= intel_obj
->buffer
->virtual;
302 obj
->Length
= obj
->Size
;
309 * Called via glMapBufferRange().
311 * The goal of this extension is to allow apps to accumulate their rendering
312 * at the same time as they accumulate their buffer object. Without it,
313 * you'd end up blocking on execution of rendering every time you mapped
314 * the buffer to put new data in.
316 * We support it in 3 ways: If unsynchronized, then don't bother
317 * flushing the batchbuffer before mapping the buffer, which can save blocking
318 * in many cases. If we would still block, and they allow the whole buffer
319 * to be invalidated, then just allocate a new buffer to replace the old one.
320 * If not, and we'd block, and they allow the subrange of the buffer to be
321 * invalidated, then we can make a new little BO, let them write into that,
322 * and blit it into the real BO at unmap time.
325 intel_bufferobj_map_range(GLcontext
* ctx
,
326 GLenum target
, GLintptr offset
, GLsizeiptr length
,
327 GLbitfield access
, struct gl_buffer_object
*obj
)
329 struct intel_context
*intel
= intel_context(ctx
);
330 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
334 /* _mesa_MapBufferRange (GL entrypoint) sets these, but the vbo module also
335 * internally uses our functions directly.
337 obj
->Offset
= offset
;
338 obj
->Length
= length
;
339 obj
->AccessFlags
= access
;
341 if (intel_obj
->sys_buffer
) {
342 obj
->Pointer
= intel_obj
->sys_buffer
+ offset
;
346 if (intel_obj
->region
)
347 intel_bufferobj_cow(intel
, intel_obj
);
349 /* If the mapping is synchronized with other GL operations, flush
350 * the batchbuffer so that GEM knows about the buffer access for later
353 if (!(access
& GL_MAP_UNSYNCHRONIZED_BIT
) &&
354 drm_intel_bo_references(intel
->batch
->buf
, intel_obj
->buffer
))
357 if (intel_obj
->buffer
== NULL
) {
362 /* If the user doesn't care about existing buffer contents and mapping
363 * would cause us to block, then throw out the old buffer.
365 if (!(access
& GL_MAP_UNSYNCHRONIZED_BIT
) &&
366 (access
& GL_MAP_INVALIDATE_BUFFER_BIT
) &&
367 drm_intel_bo_busy(intel_obj
->buffer
)) {
368 drm_intel_bo_unreference(intel_obj
->buffer
);
369 intel_obj
->buffer
= drm_intel_bo_alloc(intel
->bufmgr
, "bufferobj",
370 intel_obj
->Base
.Size
, 64);
373 /* If the user is mapping a range of an active buffer object but
374 * doesn't require the current contents of that range, make a new
375 * BO, and we'll copy what they put in there out at unmap or
378 if ((access
& GL_MAP_INVALIDATE_RANGE_BIT
) &&
379 drm_intel_bo_busy(intel_obj
->buffer
)) {
380 if (access
& GL_MAP_FLUSH_EXPLICIT_BIT
) {
381 intel_obj
->range_map_buffer
= malloc(length
);
382 obj
->Pointer
= intel_obj
->range_map_buffer
;
384 intel_obj
->range_map_bo
= drm_intel_bo_alloc(intel
->bufmgr
,
387 if (!(access
& GL_MAP_READ_BIT
)) {
388 drm_intel_gem_bo_map_gtt(intel_obj
->range_map_bo
);
389 intel_obj
->mapped_gtt
= GL_TRUE
;
391 drm_intel_bo_map(intel_obj
->range_map_bo
,
392 (access
& GL_MAP_WRITE_BIT
) != 0);
393 intel_obj
->mapped_gtt
= GL_FALSE
;
395 obj
->Pointer
= intel_obj
->range_map_bo
->virtual;
400 if (!(access
& GL_MAP_READ_BIT
)) {
401 drm_intel_gem_bo_map_gtt(intel_obj
->buffer
);
402 intel_obj
->mapped_gtt
= GL_TRUE
;
404 drm_intel_bo_map(intel_obj
->buffer
, (access
& GL_MAP_WRITE_BIT
) != 0);
405 intel_obj
->mapped_gtt
= GL_FALSE
;
408 obj
->Pointer
= intel_obj
->buffer
->virtual + offset
;
412 /* Ideally we'd use a BO to avoid taking up cache space for the temporary
413 * data, but FlushMappedBufferRange may be followed by further writes to
414 * the pointer, so we would have to re-map after emitting our blit, which
415 * would defeat the point.
418 intel_bufferobj_flush_mapped_range(GLcontext
*ctx
, GLenum target
,
419 GLintptr offset
, GLsizeiptr length
,
420 struct gl_buffer_object
*obj
)
422 struct intel_context
*intel
= intel_context(ctx
);
423 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
424 drm_intel_bo
*temp_bo
;
426 /* Unless we're in the range map using a temporary system buffer,
427 * there's no work to do.
429 if (intel_obj
->range_map_buffer
== NULL
)
435 temp_bo
= drm_intel_bo_alloc(intel
->bufmgr
, "range map flush", length
, 64);
437 drm_intel_bo_subdata(temp_bo
, 0, length
, intel_obj
->range_map_buffer
);
439 intel_emit_linear_blit(intel
,
440 intel_obj
->buffer
, obj
->Offset
+ offset
,
444 drm_intel_bo_unreference(temp_bo
);
449 * Called via glUnmapBuffer().
452 intel_bufferobj_unmap(GLcontext
* ctx
,
453 GLenum target
, struct gl_buffer_object
*obj
)
455 struct intel_context
*intel
= intel_context(ctx
);
456 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
459 assert(obj
->Pointer
);
460 if (intel_obj
->sys_buffer
!= NULL
) {
461 /* always keep the mapping around. */
462 } else if (intel_obj
->range_map_buffer
!= NULL
) {
463 /* Since we've emitted some blits to buffers that will (likely) be used
464 * in rendering operations in other cache domains in this batch, emit a
465 * flush. Once again, we wish for a domain tracker in libdrm to cover
466 * usage inside of a batchbuffer.
468 intel_batchbuffer_emit_mi_flush(intel
->batch
);
469 free(intel_obj
->range_map_buffer
);
470 intel_obj
->range_map_buffer
= NULL
;
471 } else if (intel_obj
->range_map_bo
!= NULL
) {
472 if (intel_obj
->mapped_gtt
) {
473 drm_intel_gem_bo_unmap_gtt(intel_obj
->range_map_bo
);
475 drm_intel_bo_unmap(intel_obj
->range_map_bo
);
478 intel_emit_linear_blit(intel
,
479 intel_obj
->buffer
, obj
->Offset
,
480 intel_obj
->range_map_bo
, 0,
483 /* Since we've emitted some blits to buffers that will (likely) be used
484 * in rendering operations in other cache domains in this batch, emit a
485 * flush. Once again, we wish for a domain tracker in libdrm to cover
486 * usage inside of a batchbuffer.
488 intel_batchbuffer_emit_mi_flush(intel
->batch
);
490 drm_intel_bo_unreference(intel_obj
->range_map_bo
);
491 intel_obj
->range_map_bo
= NULL
;
492 } else if (intel_obj
->buffer
!= NULL
) {
493 if (intel_obj
->mapped_gtt
) {
494 drm_intel_gem_bo_unmap_gtt(intel_obj
->buffer
);
496 drm_intel_bo_unmap(intel_obj
->buffer
);
507 intel_bufferobj_buffer(struct intel_context
*intel
,
508 struct intel_buffer_object
*intel_obj
, GLuint flag
)
510 if (intel_obj
->region
) {
511 if (flag
== INTEL_WRITE_PART
)
512 intel_bufferobj_cow(intel
, intel_obj
);
513 else if (flag
== INTEL_WRITE_FULL
) {
514 intel_bufferobj_release_region(intel
, intel_obj
);
515 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
519 if (intel_obj
->buffer
== NULL
) {
520 void *sys_buffer
= intel_obj
->sys_buffer
;
522 /* only one of buffer and sys_buffer could be non-NULL */
523 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
524 intel_obj
->sys_buffer
= NULL
;
526 intel_bufferobj_subdata(&intel
->ctx
,
529 intel_obj
->Base
.Size
,
533 intel_obj
->sys_buffer
= NULL
;
536 return intel_obj
->buffer
;
540 intel_bufferobj_copy_subdata(GLcontext
*ctx
,
541 struct gl_buffer_object
*src
,
542 struct gl_buffer_object
*dst
,
543 GLintptr read_offset
, GLintptr write_offset
,
546 struct intel_context
*intel
= intel_context(ctx
);
547 struct intel_buffer_object
*intel_src
= intel_buffer_object(src
);
548 struct intel_buffer_object
*intel_dst
= intel_buffer_object(dst
);
549 drm_intel_bo
*src_bo
, *dst_bo
;
554 /* If we're in system memory, just map and memcpy. */
555 if (intel_src
->sys_buffer
|| intel_dst
->sys_buffer
) {
556 /* The same buffer may be used, but note that regions copied may
560 char *ptr
= intel_bufferobj_map(ctx
, GL_COPY_WRITE_BUFFER
,
562 memcpy(ptr
+ write_offset
, ptr
+ read_offset
, size
);
563 intel_bufferobj_unmap(ctx
, GL_COPY_WRITE_BUFFER
, dst
);
568 src_ptr
= intel_bufferobj_map(ctx
, GL_COPY_READ_BUFFER
,
570 dst_ptr
= intel_bufferobj_map(ctx
, GL_COPY_WRITE_BUFFER
,
573 memcpy(dst_ptr
+ write_offset
, src_ptr
+ read_offset
, size
);
575 intel_bufferobj_unmap(ctx
, GL_COPY_READ_BUFFER
, src
);
576 intel_bufferobj_unmap(ctx
, GL_COPY_WRITE_BUFFER
, dst
);
580 /* Otherwise, we have real BOs, so blit them. */
582 dst_bo
= intel_bufferobj_buffer(intel
, intel_dst
, INTEL_WRITE_PART
);
583 src_bo
= intel_bufferobj_buffer(intel
, intel_src
, INTEL_READ
);
585 intel_emit_linear_blit(intel
,
586 dst_bo
, write_offset
,
587 src_bo
, read_offset
, size
);
589 /* Since we've emitted some blits to buffers that will (likely) be used
590 * in rendering operations in other cache domains in this batch, emit a
591 * flush. Once again, we wish for a domain tracker in libdrm to cover
592 * usage inside of a batchbuffer.
594 intel_batchbuffer_emit_mi_flush(intel
->batch
);
597 #if FEATURE_APPLE_object_purgeable
599 intel_buffer_purgeable(GLcontext
* ctx
,
600 drm_intel_bo
*buffer
,
606 retained
= drm_intel_bo_madvise (buffer
, I915_MADV_DONTNEED
);
608 return retained
? GL_VOLATILE_APPLE
: GL_RELEASED_APPLE
;
612 intel_buffer_object_purgeable(GLcontext
* ctx
,
613 struct gl_buffer_object
*obj
,
616 struct intel_buffer_object
*intel
;
618 intel
= intel_buffer_object (obj
);
619 if (intel
->buffer
!= NULL
)
620 return intel_buffer_purgeable (ctx
, intel
->buffer
, option
);
622 if (option
== GL_RELEASED_APPLE
) {
623 if (intel
->sys_buffer
!= NULL
) {
624 free(intel
->sys_buffer
);
625 intel
->sys_buffer
= NULL
;
628 return GL_RELEASED_APPLE
;
630 /* XXX Create the buffer and madvise(MADV_DONTNEED)? */
631 return intel_buffer_purgeable (ctx
,
632 intel_bufferobj_buffer(intel_context(ctx
),
639 intel_texture_object_purgeable(GLcontext
* ctx
,
640 struct gl_texture_object
*obj
,
643 struct intel_texture_object
*intel
;
645 intel
= intel_texture_object(obj
);
646 if (intel
->mt
== NULL
|| intel
->mt
->region
== NULL
)
647 return GL_RELEASED_APPLE
;
649 return intel_buffer_purgeable (ctx
, intel
->mt
->region
->buffer
, option
);
653 intel_render_object_purgeable(GLcontext
* ctx
,
654 struct gl_renderbuffer
*obj
,
657 struct intel_renderbuffer
*intel
;
659 intel
= intel_renderbuffer(obj
);
660 if (intel
->region
== NULL
)
661 return GL_RELEASED_APPLE
;
663 return intel_buffer_purgeable (ctx
, intel
->region
->buffer
, option
);
667 intel_buffer_unpurgeable(GLcontext
* ctx
,
668 drm_intel_bo
*buffer
,
675 retained
= drm_intel_bo_madvise (buffer
, I915_MADV_WILLNEED
);
677 return retained
? GL_RETAINED_APPLE
: GL_UNDEFINED_APPLE
;
681 intel_buffer_object_unpurgeable(GLcontext
* ctx
,
682 struct gl_buffer_object
*obj
,
685 return intel_buffer_unpurgeable (ctx
, intel_buffer_object (obj
)->buffer
, option
);
689 intel_texture_object_unpurgeable(GLcontext
* ctx
,
690 struct gl_texture_object
*obj
,
693 struct intel_texture_object
*intel
;
695 intel
= intel_texture_object(obj
);
696 if (intel
->mt
== NULL
|| intel
->mt
->region
== NULL
)
697 return GL_UNDEFINED_APPLE
;
699 return intel_buffer_unpurgeable (ctx
, intel
->mt
->region
->buffer
, option
);
703 intel_render_object_unpurgeable(GLcontext
* ctx
,
704 struct gl_renderbuffer
*obj
,
707 struct intel_renderbuffer
*intel
;
709 intel
= intel_renderbuffer(obj
);
710 if (intel
->region
== NULL
)
711 return GL_UNDEFINED_APPLE
;
713 return intel_buffer_unpurgeable (ctx
, intel
->region
->buffer
, option
);
718 intelInitBufferObjectFuncs(struct dd_function_table
*functions
)
720 functions
->NewBufferObject
= intel_bufferobj_alloc
;
721 functions
->DeleteBuffer
= intel_bufferobj_free
;
722 functions
->BufferData
= intel_bufferobj_data
;
723 functions
->BufferSubData
= intel_bufferobj_subdata
;
724 functions
->GetBufferSubData
= intel_bufferobj_get_subdata
;
725 functions
->MapBuffer
= intel_bufferobj_map
;
726 functions
->MapBufferRange
= intel_bufferobj_map_range
;
727 functions
->FlushMappedBufferRange
= intel_bufferobj_flush_mapped_range
;
728 functions
->UnmapBuffer
= intel_bufferobj_unmap
;
729 functions
->CopyBufferSubData
= intel_bufferobj_copy_subdata
;
731 #if FEATURE_APPLE_object_purgeable
732 functions
->BufferObjectPurgeable
= intel_buffer_object_purgeable
;
733 functions
->TextureObjectPurgeable
= intel_texture_object_purgeable
;
734 functions
->RenderObjectPurgeable
= intel_render_object_purgeable
;
736 functions
->BufferObjectUnpurgeable
= intel_buffer_object_unpurgeable
;
737 functions
->TextureObjectUnpurgeable
= intel_texture_object_unpurgeable
;
738 functions
->RenderObjectUnpurgeable
= intel_render_object_unpurgeable
;