2 * Copyright 2013 Advanced Micro Devices, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #include "util/u_memory.h"
29 #include "util/u_upload_mgr.h"
33 bool r600_rings_is_buffer_referenced(struct r600_common_context
*ctx
,
34 struct pb_buffer
*buf
,
35 enum radeon_bo_usage usage
)
37 if (ctx
->ws
->cs_is_buffer_referenced(ctx
->gfx
.cs
, buf
, usage
)) {
40 if (radeon_emitted(ctx
->dma
.cs
, 0) &&
41 ctx
->ws
->cs_is_buffer_referenced(ctx
->dma
.cs
, buf
, usage
)) {
47 void *r600_buffer_map_sync_with_rings(struct r600_common_context
*ctx
,
48 struct r600_resource
*resource
,
51 enum radeon_bo_usage rusage
= RADEON_USAGE_READWRITE
;
54 assert(!(resource
->flags
& RADEON_FLAG_SPARSE
));
56 if (usage
& PIPE_TRANSFER_UNSYNCHRONIZED
) {
57 return ctx
->ws
->buffer_map(resource
->buf
, NULL
, usage
);
60 if (!(usage
& PIPE_TRANSFER_WRITE
)) {
61 /* have to wait for the last write */
62 rusage
= RADEON_USAGE_WRITE
;
65 if (radeon_emitted(ctx
->gfx
.cs
, ctx
->initial_gfx_cs_size
) &&
66 ctx
->ws
->cs_is_buffer_referenced(ctx
->gfx
.cs
,
67 resource
->buf
, rusage
)) {
68 if (usage
& PIPE_TRANSFER_DONTBLOCK
) {
69 ctx
->gfx
.flush(ctx
, PIPE_FLUSH_ASYNC
, NULL
);
72 ctx
->gfx
.flush(ctx
, 0, NULL
);
76 if (radeon_emitted(ctx
->dma
.cs
, 0) &&
77 ctx
->ws
->cs_is_buffer_referenced(ctx
->dma
.cs
,
78 resource
->buf
, rusage
)) {
79 if (usage
& PIPE_TRANSFER_DONTBLOCK
) {
80 ctx
->dma
.flush(ctx
, PIPE_FLUSH_ASYNC
, NULL
);
83 ctx
->dma
.flush(ctx
, 0, NULL
);
88 if (busy
|| !ctx
->ws
->buffer_wait(resource
->buf
, 0, rusage
)) {
89 if (usage
& PIPE_TRANSFER_DONTBLOCK
) {
92 /* We will be wait for the GPU. Wait for any offloaded
93 * CS flush to complete to avoid busy-waiting in the winsys. */
94 ctx
->ws
->cs_sync_flush(ctx
->gfx
.cs
);
96 ctx
->ws
->cs_sync_flush(ctx
->dma
.cs
);
100 /* Setting the CS to NULL will prevent doing checks we have done already. */
101 return ctx
->ws
->buffer_map(resource
->buf
, NULL
, usage
);
104 void r600_init_resource_fields(struct r600_common_screen
*rscreen
,
105 struct r600_resource
*res
,
106 uint64_t size
, unsigned alignment
)
108 struct r600_texture
*rtex
= (struct r600_texture
*)res
;
111 res
->bo_alignment
= alignment
;
113 res
->texture_handle_allocated
= false;
114 res
->image_handle_allocated
= false;
116 switch (res
->b
.b
.usage
) {
117 case PIPE_USAGE_STREAM
:
118 res
->flags
= RADEON_FLAG_GTT_WC
;
120 case PIPE_USAGE_STAGING
:
121 /* Transfers are likely to occur more often with these
123 res
->domains
= RADEON_DOMAIN_GTT
;
125 case PIPE_USAGE_DYNAMIC
:
126 /* Older kernels didn't always flush the HDP cache before
129 if (rscreen
->info
.drm_minor
< 40) {
130 res
->domains
= RADEON_DOMAIN_GTT
;
131 res
->flags
|= RADEON_FLAG_GTT_WC
;
135 case PIPE_USAGE_DEFAULT
:
136 case PIPE_USAGE_IMMUTABLE
:
138 /* Not listing GTT here improves performance in some
140 res
->domains
= RADEON_DOMAIN_VRAM
;
141 res
->flags
|= RADEON_FLAG_GTT_WC
;
145 if (res
->b
.b
.target
== PIPE_BUFFER
&&
146 res
->b
.b
.flags
& (PIPE_RESOURCE_FLAG_MAP_PERSISTENT
|
147 PIPE_RESOURCE_FLAG_MAP_COHERENT
)) {
148 /* Use GTT for all persistent mappings with older
149 * kernels, because they didn't always flush the HDP
150 * cache before CS execution.
152 * Write-combined CPU mappings are fine, the kernel
153 * ensures all CPU writes finish before the GPU
154 * executes a command stream.
156 if (rscreen
->info
.drm_minor
< 40)
157 res
->domains
= RADEON_DOMAIN_GTT
;
160 /* Tiled textures are unmappable. Always put them in VRAM. */
161 if ((res
->b
.b
.target
!= PIPE_BUFFER
&& !rtex
->surface
.is_linear
) ||
162 res
->flags
& R600_RESOURCE_FLAG_UNMAPPABLE
) {
163 res
->domains
= RADEON_DOMAIN_VRAM
;
164 res
->flags
|= RADEON_FLAG_NO_CPU_ACCESS
|
168 /* Displayable and shareable surfaces are not suballocated. */
169 if (res
->b
.b
.bind
& (PIPE_BIND_SHARED
| PIPE_BIND_SCANOUT
))
170 res
->flags
|= RADEON_FLAG_NO_SUBALLOC
; /* shareable */
172 res
->flags
|= RADEON_FLAG_NO_INTERPROCESS_SHARING
;
174 if (rscreen
->debug_flags
& DBG_NO_WC
)
175 res
->flags
&= ~RADEON_FLAG_GTT_WC
;
177 /* Set expected VRAM and GART usage for the buffer. */
181 if (res
->domains
& RADEON_DOMAIN_VRAM
)
182 res
->vram_usage
= size
;
183 else if (res
->domains
& RADEON_DOMAIN_GTT
)
184 res
->gart_usage
= size
;
187 bool r600_alloc_resource(struct r600_common_screen
*rscreen
,
188 struct r600_resource
*res
)
190 struct pb_buffer
*old_buf
, *new_buf
;
192 /* Allocate a new resource. */
193 new_buf
= rscreen
->ws
->buffer_create(rscreen
->ws
, res
->bo_size
,
195 res
->domains
, res
->flags
);
200 /* Replace the pointer such that if res->buf wasn't NULL, it won't be
201 * NULL. This should prevent crashes with multiple contexts using
202 * the same buffer where one of the contexts invalidates it while
203 * the others are using it. */
205 res
->buf
= new_buf
; /* should be atomic */
207 if (rscreen
->info
.r600_has_virtual_memory
)
208 res
->gpu_address
= rscreen
->ws
->buffer_get_virtual_address(res
->buf
);
210 res
->gpu_address
= 0;
212 pb_reference(&old_buf
, NULL
);
214 util_range_set_empty(&res
->valid_buffer_range
);
216 /* Print debug information. */
217 if (rscreen
->debug_flags
& DBG_VM
&& res
->b
.b
.target
== PIPE_BUFFER
) {
218 fprintf(stderr
, "VM start=0x%"PRIX64
" end=0x%"PRIX64
" | Buffer %"PRIu64
" bytes\n",
219 res
->gpu_address
, res
->gpu_address
+ res
->buf
->size
,
225 static void r600_buffer_destroy(struct pipe_screen
*screen
,
226 struct pipe_resource
*buf
)
228 struct r600_resource
*rbuffer
= r600_resource(buf
);
230 threaded_resource_deinit(buf
);
231 util_range_destroy(&rbuffer
->valid_buffer_range
);
232 pipe_resource_reference((struct pipe_resource
**)&rbuffer
->immed_buffer
, NULL
);
233 pb_reference(&rbuffer
->buf
, NULL
);
238 r600_invalidate_buffer(struct r600_common_context
*rctx
,
239 struct r600_resource
*rbuffer
)
241 /* Shared buffers can't be reallocated. */
242 if (rbuffer
->b
.is_shared
)
245 /* Sparse buffers can't be reallocated. */
246 if (rbuffer
->flags
& RADEON_FLAG_SPARSE
)
249 /* In AMD_pinned_memory, the user pointer association only gets
250 * broken when the buffer is explicitly re-allocated.
252 if (rbuffer
->b
.is_user_ptr
)
255 /* Check if mapping this buffer would cause waiting for the GPU. */
256 if (r600_rings_is_buffer_referenced(rctx
, rbuffer
->buf
, RADEON_USAGE_READWRITE
) ||
257 !rctx
->ws
->buffer_wait(rbuffer
->buf
, 0, RADEON_USAGE_READWRITE
)) {
258 rctx
->invalidate_buffer(&rctx
->b
, &rbuffer
->b
.b
);
260 util_range_set_empty(&rbuffer
->valid_buffer_range
);
266 /* Replace the storage of dst with src. */
267 void r600_replace_buffer_storage(struct pipe_context
*ctx
,
268 struct pipe_resource
*dst
,
269 struct pipe_resource
*src
)
271 struct r600_common_context
*rctx
= (struct r600_common_context
*)ctx
;
272 struct r600_resource
*rdst
= r600_resource(dst
);
273 struct r600_resource
*rsrc
= r600_resource(src
);
274 uint64_t old_gpu_address
= rdst
->gpu_address
;
276 pb_reference(&rdst
->buf
, rsrc
->buf
);
277 rdst
->gpu_address
= rsrc
->gpu_address
;
278 rdst
->b
.b
.bind
= rsrc
->b
.b
.bind
;
279 rdst
->flags
= rsrc
->flags
;
281 assert(rdst
->vram_usage
== rsrc
->vram_usage
);
282 assert(rdst
->gart_usage
== rsrc
->gart_usage
);
283 assert(rdst
->bo_size
== rsrc
->bo_size
);
284 assert(rdst
->bo_alignment
== rsrc
->bo_alignment
);
285 assert(rdst
->domains
== rsrc
->domains
);
287 rctx
->rebind_buffer(ctx
, dst
, old_gpu_address
);
290 void r600_invalidate_resource(struct pipe_context
*ctx
,
291 struct pipe_resource
*resource
)
293 struct r600_common_context
*rctx
= (struct r600_common_context
*)ctx
;
294 struct r600_resource
*rbuffer
= r600_resource(resource
);
296 /* We currently only do anyting here for buffers */
297 if (resource
->target
== PIPE_BUFFER
)
298 (void)r600_invalidate_buffer(rctx
, rbuffer
);
301 static void *r600_buffer_get_transfer(struct pipe_context
*ctx
,
302 struct pipe_resource
*resource
,
304 const struct pipe_box
*box
,
305 struct pipe_transfer
**ptransfer
,
306 void *data
, struct r600_resource
*staging
,
309 struct r600_common_context
*rctx
= (struct r600_common_context
*)ctx
;
310 struct r600_transfer
*transfer
;
312 if (usage
& TC_TRANSFER_MAP_THREADED_UNSYNC
)
313 transfer
= slab_alloc(&rctx
->pool_transfers_unsync
);
315 transfer
= slab_alloc(&rctx
->pool_transfers
);
317 transfer
->b
.b
.resource
= NULL
;
318 pipe_resource_reference(&transfer
->b
.b
.resource
, resource
);
319 transfer
->b
.b
.level
= 0;
320 transfer
->b
.b
.usage
= usage
;
321 transfer
->b
.b
.box
= *box
;
322 transfer
->b
.b
.stride
= 0;
323 transfer
->b
.b
.layer_stride
= 0;
324 transfer
->b
.staging
= NULL
;
325 transfer
->offset
= offset
;
326 transfer
->staging
= staging
;
327 *ptransfer
= &transfer
->b
.b
;
331 static bool r600_can_dma_copy_buffer(struct r600_common_context
*rctx
,
332 unsigned dstx
, unsigned srcx
, unsigned size
)
334 bool dword_aligned
= !(dstx
% 4) && !(srcx
% 4) && !(size
% 4);
336 return rctx
->screen
->has_cp_dma
||
337 (dword_aligned
&& (rctx
->dma
.cs
||
338 rctx
->screen
->has_streamout
));
342 static void *r600_buffer_transfer_map(struct pipe_context
*ctx
,
343 struct pipe_resource
*resource
,
346 const struct pipe_box
*box
,
347 struct pipe_transfer
**ptransfer
)
349 struct r600_common_context
*rctx
= (struct r600_common_context
*)ctx
;
350 struct r600_common_screen
*rscreen
= (struct r600_common_screen
*)ctx
->screen
;
351 struct r600_resource
*rbuffer
= r600_resource(resource
);
354 assert(box
->x
+ box
->width
<= resource
->width0
);
356 /* From GL_AMD_pinned_memory issues:
358 * 4) Is glMapBuffer on a shared buffer guaranteed to return the
359 * same system address which was specified at creation time?
361 * RESOLVED: NO. The GL implementation might return a different
362 * virtual mapping of that memory, although the same physical
365 * So don't ever use staging buffers.
367 if (rbuffer
->b
.is_user_ptr
)
368 usage
|= PIPE_TRANSFER_PERSISTENT
;
370 /* See if the buffer range being mapped has never been initialized,
371 * in which case it can be mapped unsynchronized. */
372 if (!(usage
& (PIPE_TRANSFER_UNSYNCHRONIZED
|
373 TC_TRANSFER_MAP_NO_INFER_UNSYNCHRONIZED
)) &&
374 usage
& PIPE_TRANSFER_WRITE
&&
375 !rbuffer
->b
.is_shared
&&
376 !util_ranges_intersect(&rbuffer
->valid_buffer_range
, box
->x
, box
->x
+ box
->width
)) {
377 usage
|= PIPE_TRANSFER_UNSYNCHRONIZED
;
380 /* If discarding the entire range, discard the whole resource instead. */
381 if (usage
& PIPE_TRANSFER_DISCARD_RANGE
&&
382 box
->x
== 0 && box
->width
== resource
->width0
) {
383 usage
|= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
;
386 if (usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
&&
387 !(usage
& (PIPE_TRANSFER_UNSYNCHRONIZED
|
388 TC_TRANSFER_MAP_NO_INVALIDATE
))) {
389 assert(usage
& PIPE_TRANSFER_WRITE
);
391 if (r600_invalidate_buffer(rctx
, rbuffer
)) {
392 /* At this point, the buffer is always idle. */
393 usage
|= PIPE_TRANSFER_UNSYNCHRONIZED
;
395 /* Fall back to a temporary buffer. */
396 usage
|= PIPE_TRANSFER_DISCARD_RANGE
;
400 if ((usage
& PIPE_TRANSFER_DISCARD_RANGE
) &&
401 !(rscreen
->debug_flags
& DBG_NO_DISCARD_RANGE
) &&
402 ((!(usage
& (PIPE_TRANSFER_UNSYNCHRONIZED
|
403 PIPE_TRANSFER_PERSISTENT
)) &&
404 r600_can_dma_copy_buffer(rctx
, box
->x
, 0, box
->width
)) ||
405 (rbuffer
->flags
& RADEON_FLAG_SPARSE
))) {
406 assert(usage
& PIPE_TRANSFER_WRITE
);
408 /* Check if mapping this buffer would cause waiting for the GPU.
410 if (rbuffer
->flags
& RADEON_FLAG_SPARSE
||
411 r600_rings_is_buffer_referenced(rctx
, rbuffer
->buf
, RADEON_USAGE_READWRITE
) ||
412 !rctx
->ws
->buffer_wait(rbuffer
->buf
, 0, RADEON_USAGE_READWRITE
)) {
413 /* Do a wait-free write-only transfer using a temporary buffer. */
415 struct r600_resource
*staging
= NULL
;
417 u_upload_alloc(ctx
->stream_uploader
, 0,
418 box
->width
+ (box
->x
% R600_MAP_BUFFER_ALIGNMENT
),
419 rctx
->screen
->info
.tcc_cache_line_size
,
420 &offset
, (struct pipe_resource
**)&staging
,
424 data
+= box
->x
% R600_MAP_BUFFER_ALIGNMENT
;
425 return r600_buffer_get_transfer(ctx
, resource
, usage
, box
,
426 ptransfer
, data
, staging
, offset
);
427 } else if (rbuffer
->flags
& RADEON_FLAG_SPARSE
) {
431 /* At this point, the buffer is always idle (we checked it above). */
432 usage
|= PIPE_TRANSFER_UNSYNCHRONIZED
;
435 /* Use a staging buffer in cached GTT for reads. */
436 else if (((usage
& PIPE_TRANSFER_READ
) &&
437 !(usage
& PIPE_TRANSFER_PERSISTENT
) &&
438 (rbuffer
->domains
& RADEON_DOMAIN_VRAM
||
439 rbuffer
->flags
& RADEON_FLAG_GTT_WC
) &&
440 r600_can_dma_copy_buffer(rctx
, 0, box
->x
, box
->width
)) ||
441 (rbuffer
->flags
& RADEON_FLAG_SPARSE
)) {
442 struct r600_resource
*staging
;
444 assert(!(usage
& TC_TRANSFER_MAP_THREADED_UNSYNC
));
445 staging
= (struct r600_resource
*) pipe_buffer_create(
446 ctx
->screen
, 0, PIPE_USAGE_STAGING
,
447 box
->width
+ (box
->x
% R600_MAP_BUFFER_ALIGNMENT
));
449 /* Copy the VRAM buffer to the staging buffer. */
450 rctx
->dma_copy(ctx
, &staging
->b
.b
, 0,
451 box
->x
% R600_MAP_BUFFER_ALIGNMENT
,
452 0, 0, resource
, 0, box
);
454 data
= r600_buffer_map_sync_with_rings(rctx
, staging
,
455 usage
& ~PIPE_TRANSFER_UNSYNCHRONIZED
);
457 r600_resource_reference(&staging
, NULL
);
460 data
+= box
->x
% R600_MAP_BUFFER_ALIGNMENT
;
462 return r600_buffer_get_transfer(ctx
, resource
, usage
, box
,
463 ptransfer
, data
, staging
, 0);
464 } else if (rbuffer
->flags
& RADEON_FLAG_SPARSE
) {
469 data
= r600_buffer_map_sync_with_rings(rctx
, rbuffer
, usage
);
475 return r600_buffer_get_transfer(ctx
, resource
, usage
, box
,
476 ptransfer
, data
, NULL
, 0);
479 static void r600_buffer_do_flush_region(struct pipe_context
*ctx
,
480 struct pipe_transfer
*transfer
,
481 const struct pipe_box
*box
)
483 struct r600_transfer
*rtransfer
= (struct r600_transfer
*)transfer
;
484 struct r600_resource
*rbuffer
= r600_resource(transfer
->resource
);
486 if (rtransfer
->staging
) {
487 struct pipe_resource
*dst
, *src
;
489 struct pipe_box dma_box
;
491 dst
= transfer
->resource
;
492 src
= &rtransfer
->staging
->b
.b
;
493 soffset
= rtransfer
->offset
+ box
->x
% R600_MAP_BUFFER_ALIGNMENT
;
495 u_box_1d(soffset
, box
->width
, &dma_box
);
497 /* Copy the staging buffer into the original one. */
498 ctx
->resource_copy_region(ctx
, dst
, 0, box
->x
, 0, 0, src
, 0, &dma_box
);
501 util_range_add(&rbuffer
->b
.b
, &rbuffer
->valid_buffer_range
, box
->x
,
502 box
->x
+ box
->width
);
505 static void r600_buffer_flush_region(struct pipe_context
*ctx
,
506 struct pipe_transfer
*transfer
,
507 const struct pipe_box
*rel_box
)
509 unsigned required_usage
= PIPE_TRANSFER_WRITE
|
510 PIPE_TRANSFER_FLUSH_EXPLICIT
;
512 if ((transfer
->usage
& required_usage
) == required_usage
) {
515 u_box_1d(transfer
->box
.x
+ rel_box
->x
, rel_box
->width
, &box
);
516 r600_buffer_do_flush_region(ctx
, transfer
, &box
);
520 static void r600_buffer_transfer_unmap(struct pipe_context
*ctx
,
521 struct pipe_transfer
*transfer
)
523 struct r600_common_context
*rctx
= (struct r600_common_context
*)ctx
;
524 struct r600_transfer
*rtransfer
= (struct r600_transfer
*)transfer
;
526 if (transfer
->usage
& PIPE_TRANSFER_WRITE
&&
527 !(transfer
->usage
& PIPE_TRANSFER_FLUSH_EXPLICIT
))
528 r600_buffer_do_flush_region(ctx
, transfer
, &transfer
->box
);
530 r600_resource_reference(&rtransfer
->staging
, NULL
);
531 assert(rtransfer
->b
.staging
== NULL
); /* for threaded context only */
532 pipe_resource_reference(&transfer
->resource
, NULL
);
534 /* Don't use pool_transfers_unsync. We are always in the driver
536 slab_free(&rctx
->pool_transfers
, transfer
);
539 void r600_buffer_subdata(struct pipe_context
*ctx
,
540 struct pipe_resource
*buffer
,
541 unsigned usage
, unsigned offset
,
542 unsigned size
, const void *data
)
544 struct pipe_transfer
*transfer
= NULL
;
548 usage
|= PIPE_TRANSFER_WRITE
;
550 if (!(usage
& PIPE_TRANSFER_MAP_DIRECTLY
))
551 usage
|= PIPE_TRANSFER_DISCARD_RANGE
;
553 u_box_1d(offset
, size
, &box
);
554 map
= r600_buffer_transfer_map(ctx
, buffer
, 0, usage
, &box
, &transfer
);
558 memcpy(map
, data
, size
);
559 r600_buffer_transfer_unmap(ctx
, transfer
);
562 static const struct u_resource_vtbl r600_buffer_vtbl
=
564 NULL
, /* get_handle */
565 r600_buffer_destroy
, /* resource_destroy */
566 r600_buffer_transfer_map
, /* transfer_map */
567 r600_buffer_flush_region
, /* transfer_flush_region */
568 r600_buffer_transfer_unmap
, /* transfer_unmap */
571 static struct r600_resource
*
572 r600_alloc_buffer_struct(struct pipe_screen
*screen
,
573 const struct pipe_resource
*templ
)
575 struct r600_resource
*rbuffer
;
577 rbuffer
= MALLOC_STRUCT(r600_resource
);
579 rbuffer
->b
.b
= *templ
;
580 rbuffer
->b
.b
.next
= NULL
;
581 pipe_reference_init(&rbuffer
->b
.b
.reference
, 1);
582 rbuffer
->b
.b
.screen
= screen
;
584 rbuffer
->b
.vtbl
= &r600_buffer_vtbl
;
585 threaded_resource_init(&rbuffer
->b
.b
);
588 rbuffer
->bind_history
= 0;
589 rbuffer
->immed_buffer
= NULL
;
590 util_range_init(&rbuffer
->valid_buffer_range
);
594 struct pipe_resource
*r600_buffer_create(struct pipe_screen
*screen
,
595 const struct pipe_resource
*templ
,
598 struct r600_common_screen
*rscreen
= (struct r600_common_screen
*)screen
;
599 struct r600_resource
*rbuffer
= r600_alloc_buffer_struct(screen
, templ
);
601 r600_init_resource_fields(rscreen
, rbuffer
, templ
->width0
, alignment
);
603 if (templ
->flags
& PIPE_RESOURCE_FLAG_SPARSE
)
604 rbuffer
->flags
|= RADEON_FLAG_SPARSE
;
606 if (!r600_alloc_resource(rscreen
, rbuffer
)) {
610 return &rbuffer
->b
.b
;
613 struct pipe_resource
*r600_aligned_buffer_create(struct pipe_screen
*screen
,
619 struct pipe_resource buffer
;
621 memset(&buffer
, 0, sizeof buffer
);
622 buffer
.target
= PIPE_BUFFER
;
623 buffer
.format
= PIPE_FORMAT_R8_UNORM
;
625 buffer
.usage
= usage
;
626 buffer
.flags
= flags
;
627 buffer
.width0
= size
;
630 buffer
.array_size
= 1;
631 return r600_buffer_create(screen
, &buffer
, alignment
);
634 struct pipe_resource
*
635 r600_buffer_from_user_memory(struct pipe_screen
*screen
,
636 const struct pipe_resource
*templ
,
639 struct r600_common_screen
*rscreen
= (struct r600_common_screen
*)screen
;
640 struct radeon_winsys
*ws
= rscreen
->ws
;
641 struct r600_resource
*rbuffer
= r600_alloc_buffer_struct(screen
, templ
);
643 rbuffer
->domains
= RADEON_DOMAIN_GTT
;
645 rbuffer
->b
.is_user_ptr
= true;
646 util_range_add(&rbuffer
->b
.b
, &rbuffer
->valid_buffer_range
, 0, templ
->width0
);
647 util_range_add(&rbuffer
->b
.b
, &rbuffer
->b
.valid_buffer_range
, 0, templ
->width0
);
649 /* Convert a user pointer to a buffer. */
650 rbuffer
->buf
= ws
->buffer_from_ptr(ws
, user_memory
, templ
->width0
);
656 if (rscreen
->info
.r600_has_virtual_memory
)
657 rbuffer
->gpu_address
=
658 ws
->buffer_get_virtual_address(rbuffer
->buf
);
660 rbuffer
->gpu_address
= 0;
662 rbuffer
->vram_usage
= 0;
663 rbuffer
->gart_usage
= templ
->width0
;
665 return &rbuffer
->b
.b
;