2 #include "util/u_inlines.h"
3 #include "util/u_memory.h"
4 #include "util/u_math.h"
5 #include "util/u_surface.h"
7 #include "nouveau_screen.h"
8 #include "nouveau_context.h"
9 #include "nouveau_winsys.h"
10 #include "nouveau_fence.h"
11 #include "nouveau_buffer.h"
12 #include "nouveau_mm.h"
14 #define NOUVEAU_TRANSFER_PUSHBUF_THRESHOLD 192
16 struct nouveau_transfer
{
17 struct pipe_transfer base
;
20 struct nouveau_bo
*bo
;
21 struct nouveau_mm_allocation
*mm
;
25 static INLINE
struct nouveau_transfer
*
26 nouveau_transfer(struct pipe_transfer
*transfer
)
28 return (struct nouveau_transfer
*)transfer
;
32 nouveau_buffer_malloc(struct nv04_resource
*buf
)
35 buf
->data
= align_malloc(buf
->base
.width0
, NOUVEAU_MIN_BUFFER_MAP_ALIGN
);
40 nouveau_buffer_allocate(struct nouveau_screen
*screen
,
41 struct nv04_resource
*buf
, unsigned domain
)
43 uint32_t size
= buf
->base
.width0
;
45 if (buf
->base
.bind
& (PIPE_BIND_CONSTANT_BUFFER
|
46 PIPE_BIND_COMPUTE_RESOURCE
|
47 PIPE_BIND_SHADER_RESOURCE
))
48 size
= align(size
, 0x100);
50 if (domain
== NOUVEAU_BO_VRAM
) {
51 buf
->mm
= nouveau_mm_allocate(screen
->mm_VRAM
, size
,
52 &buf
->bo
, &buf
->offset
);
54 return nouveau_buffer_allocate(screen
, buf
, NOUVEAU_BO_GART
);
55 NOUVEAU_DRV_STAT(screen
, buf_obj_current_bytes_vid
, buf
->base
.width0
);
57 if (domain
== NOUVEAU_BO_GART
) {
58 buf
->mm
= nouveau_mm_allocate(screen
->mm_GART
, size
,
59 &buf
->bo
, &buf
->offset
);
62 NOUVEAU_DRV_STAT(screen
, buf_obj_current_bytes_sys
, buf
->base
.width0
);
65 if (!nouveau_buffer_malloc(buf
))
70 buf
->address
= buf
->bo
->offset
+ buf
->offset
;
72 util_range_set_empty(&buf
->valid_buffer_range
);
78 release_allocation(struct nouveau_mm_allocation
**mm
,
79 struct nouveau_fence
*fence
)
81 nouveau_fence_work(fence
, nouveau_mm_free_work
, *mm
);
86 nouveau_buffer_release_gpu_storage(struct nv04_resource
*buf
)
88 nouveau_bo_ref(NULL
, &buf
->bo
);
91 release_allocation(&buf
->mm
, buf
->fence
);
93 if (buf
->domain
== NOUVEAU_BO_VRAM
)
94 NOUVEAU_DRV_STAT_RES(buf
, buf_obj_current_bytes_vid
, -(uint64_t)buf
->base
.width0
);
95 if (buf
->domain
== NOUVEAU_BO_GART
)
96 NOUVEAU_DRV_STAT_RES(buf
, buf_obj_current_bytes_sys
, -(uint64_t)buf
->base
.width0
);
101 static INLINE boolean
102 nouveau_buffer_reallocate(struct nouveau_screen
*screen
,
103 struct nv04_resource
*buf
, unsigned domain
)
105 nouveau_buffer_release_gpu_storage(buf
);
107 nouveau_fence_ref(NULL
, &buf
->fence
);
108 nouveau_fence_ref(NULL
, &buf
->fence_wr
);
110 buf
->status
&= NOUVEAU_BUFFER_STATUS_REALLOC_MASK
;
112 return nouveau_buffer_allocate(screen
, buf
, domain
);
116 nouveau_buffer_destroy(struct pipe_screen
*pscreen
,
117 struct pipe_resource
*presource
)
119 struct nv04_resource
*res
= nv04_resource(presource
);
121 nouveau_buffer_release_gpu_storage(res
);
123 if (res
->data
&& !(res
->status
& NOUVEAU_BUFFER_STATUS_USER_MEMORY
))
124 align_free(res
->data
);
126 nouveau_fence_ref(NULL
, &res
->fence
);
127 nouveau_fence_ref(NULL
, &res
->fence_wr
);
129 util_range_destroy(&res
->valid_buffer_range
);
133 NOUVEAU_DRV_STAT(nouveau_screen(pscreen
), buf_obj_current_count
, -1);
136 /* Set up a staging area for the transfer. This is either done in "regular"
137 * system memory if the driver supports push_data (nv50+) and the data is
138 * small enough (and permit_pb == true), or in GART memory.
141 nouveau_transfer_staging(struct nouveau_context
*nv
,
142 struct nouveau_transfer
*tx
, boolean permit_pb
)
144 const unsigned adj
= tx
->base
.box
.x
& NOUVEAU_MIN_BUFFER_MAP_ALIGN_MASK
;
145 const unsigned size
= align(tx
->base
.box
.width
, 4) + adj
;
150 if ((size
<= NOUVEAU_TRANSFER_PUSHBUF_THRESHOLD
) && permit_pb
) {
151 tx
->map
= align_malloc(size
, NOUVEAU_MIN_BUFFER_MAP_ALIGN
);
156 nouveau_mm_allocate(nv
->screen
->mm_GART
, size
, &tx
->bo
, &tx
->offset
);
159 if (!nouveau_bo_map(tx
->bo
, 0, NULL
))
160 tx
->map
= (uint8_t *)tx
->bo
->map
+ tx
->offset
;
166 /* Copies data from the resource into the the transfer's temporary GART
167 * buffer. Also updates buf->data if present.
169 * Maybe just migrate to GART right away if we actually need to do this. */
171 nouveau_transfer_read(struct nouveau_context
*nv
, struct nouveau_transfer
*tx
)
173 struct nv04_resource
*buf
= nv04_resource(tx
->base
.resource
);
174 const unsigned base
= tx
->base
.box
.x
;
175 const unsigned size
= tx
->base
.box
.width
;
177 NOUVEAU_DRV_STAT(nv
->screen
, buf_read_bytes_staging_vid
, size
);
179 nv
->copy_data(nv
, tx
->bo
, tx
->offset
, NOUVEAU_BO_GART
,
180 buf
->bo
, buf
->offset
+ base
, buf
->domain
, size
);
182 if (nouveau_bo_wait(tx
->bo
, NOUVEAU_BO_RD
, nv
->client
))
186 memcpy(buf
->data
+ base
, tx
->map
, size
);
192 nouveau_transfer_write(struct nouveau_context
*nv
, struct nouveau_transfer
*tx
,
193 unsigned offset
, unsigned size
)
195 struct nv04_resource
*buf
= nv04_resource(tx
->base
.resource
);
196 uint8_t *data
= tx
->map
+ offset
;
197 const unsigned base
= tx
->base
.box
.x
+ offset
;
198 const boolean can_cb
= !((base
| size
) & 3);
201 memcpy(data
, buf
->data
+ base
, size
);
203 buf
->status
|= NOUVEAU_BUFFER_STATUS_DIRTY
;
205 if (buf
->domain
== NOUVEAU_BO_VRAM
)
206 NOUVEAU_DRV_STAT(nv
->screen
, buf_write_bytes_staging_vid
, size
);
207 if (buf
->domain
== NOUVEAU_BO_GART
)
208 NOUVEAU_DRV_STAT(nv
->screen
, buf_write_bytes_staging_sys
, size
);
211 nv
->copy_data(nv
, buf
->bo
, buf
->offset
+ base
, buf
->domain
,
212 tx
->bo
, tx
->offset
+ offset
, NOUVEAU_BO_GART
, size
);
214 if ((buf
->base
.bind
& PIPE_BIND_CONSTANT_BUFFER
) && nv
->push_cb
&& can_cb
)
215 nv
->push_cb(nv
, buf
->bo
, buf
->domain
, buf
->offset
, buf
->base
.width0
,
216 base
, size
/ 4, (const uint32_t *)data
);
218 nv
->push_data(nv
, buf
->bo
, buf
->offset
+ base
, buf
->domain
, size
, data
);
220 nouveau_fence_ref(nv
->screen
->fence
.current
, &buf
->fence
);
221 nouveau_fence_ref(nv
->screen
->fence
.current
, &buf
->fence_wr
);
224 /* Does a CPU wait for the buffer's backing data to become reliably accessible
225 * for write/read by waiting on the buffer's relevant fences.
227 static INLINE boolean
228 nouveau_buffer_sync(struct nv04_resource
*buf
, unsigned rw
)
230 if (rw
== PIPE_TRANSFER_READ
) {
233 NOUVEAU_DRV_STAT_RES(buf
, buf_non_kernel_fence_sync_count
,
234 !nouveau_fence_signalled(buf
->fence_wr
));
235 if (!nouveau_fence_wait(buf
->fence_wr
))
240 NOUVEAU_DRV_STAT_RES(buf
, buf_non_kernel_fence_sync_count
,
241 !nouveau_fence_signalled(buf
->fence
));
242 if (!nouveau_fence_wait(buf
->fence
))
245 nouveau_fence_ref(NULL
, &buf
->fence
);
247 nouveau_fence_ref(NULL
, &buf
->fence_wr
);
252 static INLINE boolean
253 nouveau_buffer_busy(struct nv04_resource
*buf
, unsigned rw
)
255 if (rw
== PIPE_TRANSFER_READ
)
256 return (buf
->fence_wr
&& !nouveau_fence_signalled(buf
->fence_wr
));
258 return (buf
->fence
&& !nouveau_fence_signalled(buf
->fence
));
262 nouveau_buffer_transfer_init(struct nouveau_transfer
*tx
,
263 struct pipe_resource
*resource
,
264 const struct pipe_box
*box
,
267 tx
->base
.resource
= resource
;
269 tx
->base
.usage
= usage
;
270 tx
->base
.box
.x
= box
->x
;
273 tx
->base
.box
.width
= box
->width
;
274 tx
->base
.box
.height
= 1;
275 tx
->base
.box
.depth
= 1;
277 tx
->base
.layer_stride
= 0;
284 nouveau_buffer_transfer_del(struct nouveau_context
*nv
,
285 struct nouveau_transfer
*tx
)
288 if (likely(tx
->bo
)) {
289 nouveau_bo_ref(NULL
, &tx
->bo
);
291 release_allocation(&tx
->mm
, nv
->screen
->fence
.current
);
294 (tx
->base
.box
.x
& NOUVEAU_MIN_BUFFER_MAP_ALIGN_MASK
));
299 /* Creates a cache in system memory of the buffer data. */
301 nouveau_buffer_cache(struct nouveau_context
*nv
, struct nv04_resource
*buf
)
303 struct nouveau_transfer tx
;
305 tx
.base
.resource
= &buf
->base
;
307 tx
.base
.box
.width
= buf
->base
.width0
;
312 if (!nouveau_buffer_malloc(buf
))
314 if (!(buf
->status
& NOUVEAU_BUFFER_STATUS_DIRTY
))
316 nv
->stats
.buf_cache_count
++;
318 if (!nouveau_transfer_staging(nv
, &tx
, FALSE
))
321 ret
= nouveau_transfer_read(nv
, &tx
);
323 buf
->status
&= ~NOUVEAU_BUFFER_STATUS_DIRTY
;
324 memcpy(buf
->data
, tx
.map
, buf
->base
.width0
);
326 nouveau_buffer_transfer_del(nv
, &tx
);
331 #define NOUVEAU_TRANSFER_DISCARD \
332 (PIPE_TRANSFER_DISCARD_RANGE | PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE)
334 /* Checks whether it is possible to completely discard the memory backing this
335 * resource. This can be useful if we would otherwise have to wait for a read
336 * operation to complete on this data.
338 static INLINE boolean
339 nouveau_buffer_should_discard(struct nv04_resource
*buf
, unsigned usage
)
341 if (!(usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
))
343 if (unlikely(buf
->base
.bind
& PIPE_BIND_SHARED
))
345 if (unlikely(usage
& PIPE_TRANSFER_PERSISTENT
))
347 return buf
->mm
&& nouveau_buffer_busy(buf
, PIPE_TRANSFER_WRITE
);
350 /* Returns a pointer to a memory area representing a window into the
353 * This may or may not be the _actual_ memory area of the resource. However
354 * when calling nouveau_buffer_transfer_unmap, if it wasn't the actual memory
355 * area, the contents of the returned map are copied over to the resource.
357 * The usage indicates what the caller plans to do with the map:
359 * WRITE means that the user plans to write to it
361 * READ means that the user plans on reading from it
363 * DISCARD_WHOLE_RESOURCE means that the whole resource is going to be
364 * potentially overwritten, and even if it isn't, the bits that aren't don't
365 * need to be maintained.
367 * DISCARD_RANGE means that all the data in the specified range is going to
370 * The strategy for determining what kind of memory area to return is complex,
371 * see comments inside of the function.
374 nouveau_buffer_transfer_map(struct pipe_context
*pipe
,
375 struct pipe_resource
*resource
,
376 unsigned level
, unsigned usage
,
377 const struct pipe_box
*box
,
378 struct pipe_transfer
**ptransfer
)
380 struct nouveau_context
*nv
= nouveau_context(pipe
);
381 struct nv04_resource
*buf
= nv04_resource(resource
);
382 struct nouveau_transfer
*tx
= MALLOC_STRUCT(nouveau_transfer
);
388 nouveau_buffer_transfer_init(tx
, resource
, box
, usage
);
389 *ptransfer
= &tx
->base
;
391 if (usage
& PIPE_TRANSFER_READ
)
392 NOUVEAU_DRV_STAT(nv
->screen
, buf_transfers_rd
, 1);
393 if (usage
& PIPE_TRANSFER_WRITE
)
394 NOUVEAU_DRV_STAT(nv
->screen
, buf_transfers_wr
, 1);
396 /* If we are trying to write to an uninitialized range, the user shouldn't
397 * care what was there before. So we can treat the write as if the target
398 * range were being discarded. Furthermore, since we know that even if this
399 * buffer is busy due to GPU activity, because the contents were
400 * uninitialized, the GPU can't care what was there, and so we can treat
401 * the write as being unsynchronized.
403 if ((usage
& PIPE_TRANSFER_WRITE
) &&
404 !util_ranges_intersect(&buf
->valid_buffer_range
, box
->x
, box
->x
+ box
->width
))
405 usage
|= PIPE_TRANSFER_DISCARD_RANGE
| PIPE_TRANSFER_UNSYNCHRONIZED
;
407 if (usage
& PIPE_TRANSFER_PERSISTENT
)
408 usage
|= PIPE_TRANSFER_UNSYNCHRONIZED
;
410 if (buf
->domain
== NOUVEAU_BO_VRAM
) {
411 if (usage
& NOUVEAU_TRANSFER_DISCARD
) {
412 /* Set up a staging area for the user to write to. It will be copied
413 * back into VRAM on unmap. */
414 if (usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
)
415 buf
->status
&= NOUVEAU_BUFFER_STATUS_REALLOC_MASK
;
416 nouveau_transfer_staging(nv
, tx
, TRUE
);
418 if (buf
->status
& NOUVEAU_BUFFER_STATUS_GPU_WRITING
) {
419 /* The GPU is currently writing to this buffer. Copy its current
420 * contents to a staging area in the GART. This is necessary since
421 * not the whole area being mapped is being discarded.
424 align_free(buf
->data
);
427 nouveau_transfer_staging(nv
, tx
, FALSE
);
428 nouveau_transfer_read(nv
, tx
);
430 /* The buffer is currently idle. Create a staging area for writes,
431 * and make sure that the cached data is up-to-date. */
432 if (usage
& PIPE_TRANSFER_WRITE
)
433 nouveau_transfer_staging(nv
, tx
, TRUE
);
435 nouveau_buffer_cache(nv
, buf
);
438 return buf
->data
? (buf
->data
+ box
->x
) : tx
->map
;
440 if (unlikely(buf
->domain
== 0)) {
441 return buf
->data
+ box
->x
;
444 /* At this point, buf->domain == GART */
446 if (nouveau_buffer_should_discard(buf
, usage
)) {
447 int ref
= buf
->base
.reference
.count
- 1;
448 nouveau_buffer_reallocate(nv
->screen
, buf
, buf
->domain
);
449 if (ref
> 0) /* any references inside context possible ? */
450 nv
->invalidate_resource_storage(nv
, &buf
->base
, ref
);
453 /* Note that nouveau_bo_map ends up doing a nouveau_bo_wait with the
454 * relevant flags. If buf->mm is set, that means this resource is part of a
455 * larger slab bo that holds multiple resources. So in that case, don't
456 * wait on the whole slab and instead use the logic below to return a
457 * reasonable buffer for that case.
459 ret
= nouveau_bo_map(buf
->bo
,
460 buf
->mm
? 0 : nouveau_screen_transfer_flags(usage
),
466 map
= (uint8_t *)buf
->bo
->map
+ buf
->offset
+ box
->x
;
468 /* using kernel fences only if !buf->mm */
469 if ((usage
& PIPE_TRANSFER_UNSYNCHRONIZED
) || !buf
->mm
)
472 /* If the GPU is currently reading/writing this buffer, we shouldn't
473 * interfere with its progress. So instead we either wait for the GPU to
474 * complete its operation, or set up a staging area to perform our work in.
476 if (nouveau_buffer_busy(buf
, usage
& PIPE_TRANSFER_READ_WRITE
)) {
477 if (unlikely(usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
)) {
478 /* Discarding was not possible, must sync because
479 * subsequent transfers might use UNSYNCHRONIZED. */
480 nouveau_buffer_sync(buf
, usage
& PIPE_TRANSFER_READ_WRITE
);
482 if (usage
& PIPE_TRANSFER_DISCARD_RANGE
) {
483 /* The whole range is being discarded, so it doesn't matter what was
484 * there before. No need to copy anything over. */
485 nouveau_transfer_staging(nv
, tx
, TRUE
);
488 if (nouveau_buffer_busy(buf
, PIPE_TRANSFER_READ
)) {
489 if (usage
& PIPE_TRANSFER_DONTBLOCK
)
492 nouveau_buffer_sync(buf
, usage
& PIPE_TRANSFER_READ_WRITE
);
494 /* It is expected that the returned buffer be a representation of the
495 * data in question, so we must copy it over from the buffer. */
496 nouveau_transfer_staging(nv
, tx
, TRUE
);
498 memcpy(tx
->map
, map
, box
->width
);
510 nouveau_buffer_transfer_flush_region(struct pipe_context
*pipe
,
511 struct pipe_transfer
*transfer
,
512 const struct pipe_box
*box
)
514 struct nouveau_transfer
*tx
= nouveau_transfer(transfer
);
515 struct nv04_resource
*buf
= nv04_resource(transfer
->resource
);
518 nouveau_transfer_write(nouveau_context(pipe
), tx
, box
->x
, box
->width
);
520 util_range_add(&buf
->valid_buffer_range
,
521 tx
->base
.box
.x
+ box
->x
,
522 tx
->base
.box
.x
+ box
->x
+ box
->width
);
525 /* Unmap stage of the transfer. If it was a WRITE transfer and the map that
526 * was returned was not the real resource's data, this needs to transfer the
527 * data back to the resource.
529 * Also marks vbo dirty based on the buffer's binding
532 nouveau_buffer_transfer_unmap(struct pipe_context
*pipe
,
533 struct pipe_transfer
*transfer
)
535 struct nouveau_context
*nv
= nouveau_context(pipe
);
536 struct nouveau_transfer
*tx
= nouveau_transfer(transfer
);
537 struct nv04_resource
*buf
= nv04_resource(transfer
->resource
);
539 if (tx
->base
.usage
& PIPE_TRANSFER_WRITE
) {
540 if (!(tx
->base
.usage
& PIPE_TRANSFER_FLUSH_EXPLICIT
) && tx
->map
)
541 nouveau_transfer_write(nv
, tx
, 0, tx
->base
.box
.width
);
543 if (likely(buf
->domain
)) {
544 const uint8_t bind
= buf
->base
.bind
;
545 /* make sure we invalidate dedicated caches */
546 if (bind
& (PIPE_BIND_VERTEX_BUFFER
| PIPE_BIND_INDEX_BUFFER
))
547 nv
->vbo_dirty
= TRUE
;
550 util_range_add(&buf
->valid_buffer_range
,
551 tx
->base
.box
.x
, tx
->base
.box
.x
+ tx
->base
.box
.width
);
554 if (!tx
->bo
&& (tx
->base
.usage
& PIPE_TRANSFER_WRITE
))
555 NOUVEAU_DRV_STAT(nv
->screen
, buf_write_bytes_direct
, tx
->base
.box
.width
);
557 nouveau_buffer_transfer_del(nv
, tx
);
563 nouveau_copy_buffer(struct nouveau_context
*nv
,
564 struct nv04_resource
*dst
, unsigned dstx
,
565 struct nv04_resource
*src
, unsigned srcx
, unsigned size
)
567 assert(dst
->base
.target
== PIPE_BUFFER
&& src
->base
.target
== PIPE_BUFFER
);
569 if (likely(dst
->domain
) && likely(src
->domain
)) {
571 dst
->bo
, dst
->offset
+ dstx
, dst
->domain
,
572 src
->bo
, src
->offset
+ srcx
, src
->domain
, size
);
574 dst
->status
|= NOUVEAU_BUFFER_STATUS_GPU_WRITING
;
575 nouveau_fence_ref(nv
->screen
->fence
.current
, &dst
->fence
);
576 nouveau_fence_ref(nv
->screen
->fence
.current
, &dst
->fence_wr
);
578 src
->status
|= NOUVEAU_BUFFER_STATUS_GPU_READING
;
579 nouveau_fence_ref(nv
->screen
->fence
.current
, &src
->fence
);
581 struct pipe_box src_box
;
585 src_box
.width
= size
;
588 util_resource_copy_region(&nv
->pipe
,
589 &dst
->base
, 0, dstx
, 0, 0,
590 &src
->base
, 0, &src_box
);
593 util_range_add(&dst
->valid_buffer_range
, dstx
, dstx
+ size
);
598 nouveau_resource_map_offset(struct nouveau_context
*nv
,
599 struct nv04_resource
*res
, uint32_t offset
,
602 if (unlikely(res
->status
& NOUVEAU_BUFFER_STATUS_USER_MEMORY
))
603 return res
->data
+ offset
;
605 if (res
->domain
== NOUVEAU_BO_VRAM
) {
606 if (!res
->data
|| (res
->status
& NOUVEAU_BUFFER_STATUS_GPU_WRITING
))
607 nouveau_buffer_cache(nv
, res
);
609 if (res
->domain
!= NOUVEAU_BO_GART
)
610 return res
->data
+ offset
;
614 rw
= (flags
& NOUVEAU_BO_WR
) ? PIPE_TRANSFER_WRITE
: PIPE_TRANSFER_READ
;
615 nouveau_buffer_sync(res
, rw
);
616 if (nouveau_bo_map(res
->bo
, 0, NULL
))
619 if (nouveau_bo_map(res
->bo
, flags
, nv
->client
))
622 return (uint8_t *)res
->bo
->map
+ res
->offset
+ offset
;
626 const struct u_resource_vtbl nouveau_buffer_vtbl
=
628 u_default_resource_get_handle
, /* get_handle */
629 nouveau_buffer_destroy
, /* resource_destroy */
630 nouveau_buffer_transfer_map
, /* transfer_map */
631 nouveau_buffer_transfer_flush_region
, /* transfer_flush_region */
632 nouveau_buffer_transfer_unmap
, /* transfer_unmap */
633 u_default_transfer_inline_write
/* transfer_inline_write */
636 struct pipe_resource
*
637 nouveau_buffer_create(struct pipe_screen
*pscreen
,
638 const struct pipe_resource
*templ
)
640 struct nouveau_screen
*screen
= nouveau_screen(pscreen
);
641 struct nv04_resource
*buffer
;
644 buffer
= CALLOC_STRUCT(nv04_resource
);
648 buffer
->base
= *templ
;
649 buffer
->vtbl
= &nouveau_buffer_vtbl
;
650 pipe_reference_init(&buffer
->base
.reference
, 1);
651 buffer
->base
.screen
= pscreen
;
653 if (buffer
->base
.flags
& (PIPE_RESOURCE_FLAG_MAP_PERSISTENT
|
654 PIPE_RESOURCE_FLAG_MAP_COHERENT
)) {
655 buffer
->domain
= NOUVEAU_BO_GART
;
656 } else if (buffer
->base
.bind
&
657 (screen
->vidmem_bindings
& screen
->sysmem_bindings
)) {
658 switch (buffer
->base
.usage
) {
659 case PIPE_USAGE_DEFAULT
:
660 case PIPE_USAGE_IMMUTABLE
:
661 buffer
->domain
= NOUVEAU_BO_VRAM
;
663 case PIPE_USAGE_DYNAMIC
:
664 /* For most apps, we'd have to do staging transfers to avoid sync
665 * with this usage, and GART -> GART copies would be suboptimal.
667 buffer
->domain
= NOUVEAU_BO_VRAM
;
669 case PIPE_USAGE_STAGING
:
670 case PIPE_USAGE_STREAM
:
671 buffer
->domain
= NOUVEAU_BO_GART
;
678 if (buffer
->base
.bind
& screen
->vidmem_bindings
)
679 buffer
->domain
= NOUVEAU_BO_VRAM
;
681 if (buffer
->base
.bind
& screen
->sysmem_bindings
)
682 buffer
->domain
= NOUVEAU_BO_GART
;
684 ret
= nouveau_buffer_allocate(screen
, buffer
, buffer
->domain
);
689 if (buffer
->domain
== NOUVEAU_BO_VRAM
&& screen
->hint_buf_keep_sysmem_copy
)
690 nouveau_buffer_cache(NULL
, buffer
);
692 NOUVEAU_DRV_STAT(screen
, buf_obj_current_count
, 1);
694 util_range_init(&buffer
->valid_buffer_range
);
696 return &buffer
->base
;
704 struct pipe_resource
*
705 nouveau_user_buffer_create(struct pipe_screen
*pscreen
, void *ptr
,
706 unsigned bytes
, unsigned bind
)
708 struct nv04_resource
*buffer
;
710 buffer
= CALLOC_STRUCT(nv04_resource
);
714 pipe_reference_init(&buffer
->base
.reference
, 1);
715 buffer
->vtbl
= &nouveau_buffer_vtbl
;
716 buffer
->base
.screen
= pscreen
;
717 buffer
->base
.format
= PIPE_FORMAT_R8_UNORM
;
718 buffer
->base
.usage
= PIPE_USAGE_IMMUTABLE
;
719 buffer
->base
.bind
= bind
;
720 buffer
->base
.width0
= bytes
;
721 buffer
->base
.height0
= 1;
722 buffer
->base
.depth0
= 1;
725 buffer
->status
= NOUVEAU_BUFFER_STATUS_USER_MEMORY
;
727 util_range_init(&buffer
->valid_buffer_range
);
728 util_range_add(&buffer
->valid_buffer_range
, 0, bytes
);
730 return &buffer
->base
;
733 static INLINE boolean
734 nouveau_buffer_data_fetch(struct nouveau_context
*nv
, struct nv04_resource
*buf
,
735 struct nouveau_bo
*bo
, unsigned offset
, unsigned size
)
737 if (!nouveau_buffer_malloc(buf
))
739 if (nouveau_bo_map(bo
, NOUVEAU_BO_RD
, nv
->client
))
741 memcpy(buf
->data
, (uint8_t *)bo
->map
+ offset
, size
);
745 /* Migrate a linear buffer (vertex, index, constants) USER -> GART -> VRAM. */
747 nouveau_buffer_migrate(struct nouveau_context
*nv
,
748 struct nv04_resource
*buf
, const unsigned new_domain
)
750 struct nouveau_screen
*screen
= nv
->screen
;
751 struct nouveau_bo
*bo
;
752 const unsigned old_domain
= buf
->domain
;
753 unsigned size
= buf
->base
.width0
;
757 assert(new_domain
!= old_domain
);
759 if (new_domain
== NOUVEAU_BO_GART
&& old_domain
== 0) {
760 if (!nouveau_buffer_allocate(screen
, buf
, new_domain
))
762 ret
= nouveau_bo_map(buf
->bo
, 0, nv
->client
);
765 memcpy((uint8_t *)buf
->bo
->map
+ buf
->offset
, buf
->data
, size
);
766 align_free(buf
->data
);
768 if (old_domain
!= 0 && new_domain
!= 0) {
769 struct nouveau_mm_allocation
*mm
= buf
->mm
;
771 if (new_domain
== NOUVEAU_BO_VRAM
) {
772 /* keep a system memory copy of our data in case we hit a fallback */
773 if (!nouveau_buffer_data_fetch(nv
, buf
, buf
->bo
, buf
->offset
, size
))
775 if (nouveau_mesa_debug
)
776 debug_printf("migrating %u KiB to VRAM\n", size
/ 1024);
779 offset
= buf
->offset
;
783 nouveau_buffer_allocate(screen
, buf
, new_domain
);
785 nv
->copy_data(nv
, buf
->bo
, buf
->offset
, new_domain
,
786 bo
, offset
, old_domain
, buf
->base
.width0
);
788 nouveau_bo_ref(NULL
, &bo
);
790 release_allocation(&mm
, screen
->fence
.current
);
792 if (new_domain
== NOUVEAU_BO_VRAM
&& old_domain
== 0) {
793 struct nouveau_transfer tx
;
794 if (!nouveau_buffer_allocate(screen
, buf
, NOUVEAU_BO_VRAM
))
796 tx
.base
.resource
= &buf
->base
;
798 tx
.base
.box
.width
= buf
->base
.width0
;
801 if (!nouveau_transfer_staging(nv
, &tx
, FALSE
))
803 nouveau_transfer_write(nv
, &tx
, 0, tx
.base
.box
.width
);
804 nouveau_buffer_transfer_del(nv
, &tx
);
808 assert(buf
->domain
== new_domain
);
812 /* Migrate data from glVertexAttribPointer(non-VBO) user buffers to GART.
813 * We'd like to only allocate @size bytes here, but then we'd have to rebase
814 * the vertex indices ...
817 nouveau_user_buffer_upload(struct nouveau_context
*nv
,
818 struct nv04_resource
*buf
,
819 unsigned base
, unsigned size
)
821 struct nouveau_screen
*screen
= nouveau_screen(buf
->base
.screen
);
824 assert(buf
->status
& NOUVEAU_BUFFER_STATUS_USER_MEMORY
);
826 buf
->base
.width0
= base
+ size
;
827 if (!nouveau_buffer_reallocate(screen
, buf
, NOUVEAU_BO_GART
))
830 ret
= nouveau_bo_map(buf
->bo
, 0, nv
->client
);
833 memcpy((uint8_t *)buf
->bo
->map
+ buf
->offset
+ base
, buf
->data
+ base
, size
);
839 /* Scratch data allocation. */
842 nouveau_scratch_bo_alloc(struct nouveau_context
*nv
, struct nouveau_bo
**pbo
,
845 return nouveau_bo_new(nv
->screen
->device
, NOUVEAU_BO_GART
| NOUVEAU_BO_MAP
,
846 4096, size
, NULL
, pbo
);
850 nouveau_scratch_runout_release(struct nouveau_context
*nv
)
852 if (!nv
->scratch
.nr_runout
)
855 --nv
->scratch
.nr_runout
;
856 nouveau_bo_ref(NULL
, &nv
->scratch
.runout
[nv
->scratch
.nr_runout
]);
857 } while (nv
->scratch
.nr_runout
);
859 FREE(nv
->scratch
.runout
);
861 nv
->scratch
.runout
= NULL
;
864 /* Allocate an extra bo if we can't fit everything we need simultaneously.
865 * (Could happen for very large user arrays.)
867 static INLINE boolean
868 nouveau_scratch_runout(struct nouveau_context
*nv
, unsigned size
)
871 const unsigned n
= nv
->scratch
.nr_runout
++;
873 nv
->scratch
.runout
= REALLOC(nv
->scratch
.runout
,
874 (n
+ 0) * sizeof(*nv
->scratch
.runout
),
875 (n
+ 1) * sizeof(*nv
->scratch
.runout
));
876 nv
->scratch
.runout
[n
] = NULL
;
878 ret
= nouveau_scratch_bo_alloc(nv
, &nv
->scratch
.runout
[n
], size
);
880 ret
= nouveau_bo_map(nv
->scratch
.runout
[n
], 0, NULL
);
882 nouveau_bo_ref(NULL
, &nv
->scratch
.runout
[--nv
->scratch
.nr_runout
]);
885 nv
->scratch
.current
= nv
->scratch
.runout
[n
];
886 nv
->scratch
.offset
= 0;
887 nv
->scratch
.end
= size
;
888 nv
->scratch
.map
= nv
->scratch
.current
->map
;
893 /* Continue to next scratch buffer, if available (no wrapping, large enough).
894 * Allocate it if it has not yet been created.
896 static INLINE boolean
897 nouveau_scratch_next(struct nouveau_context
*nv
, unsigned size
)
899 struct nouveau_bo
*bo
;
901 const unsigned i
= (nv
->scratch
.id
+ 1) % NOUVEAU_MAX_SCRATCH_BUFS
;
903 if ((size
> nv
->scratch
.bo_size
) || (i
== nv
->scratch
.wrap
))
907 bo
= nv
->scratch
.bo
[i
];
909 ret
= nouveau_scratch_bo_alloc(nv
, &bo
, nv
->scratch
.bo_size
);
912 nv
->scratch
.bo
[i
] = bo
;
914 nv
->scratch
.current
= bo
;
915 nv
->scratch
.offset
= 0;
916 nv
->scratch
.end
= nv
->scratch
.bo_size
;
918 ret
= nouveau_bo_map(bo
, NOUVEAU_BO_WR
, nv
->client
);
920 nv
->scratch
.map
= bo
->map
;
925 nouveau_scratch_more(struct nouveau_context
*nv
, unsigned min_size
)
929 ret
= nouveau_scratch_next(nv
, min_size
);
931 ret
= nouveau_scratch_runout(nv
, min_size
);
936 /* Copy data to a scratch buffer and return address & bo the data resides in. */
938 nouveau_scratch_data(struct nouveau_context
*nv
,
939 const void *data
, unsigned base
, unsigned size
,
940 struct nouveau_bo
**bo
)
942 unsigned bgn
= MAX2(base
, nv
->scratch
.offset
);
943 unsigned end
= bgn
+ size
;
945 if (end
>= nv
->scratch
.end
) {
947 if (!nouveau_scratch_more(nv
, end
))
951 nv
->scratch
.offset
= align(end
, 4);
953 memcpy(nv
->scratch
.map
+ bgn
, (const uint8_t *)data
+ base
, size
);
955 *bo
= nv
->scratch
.current
;
956 return (*bo
)->offset
+ (bgn
- base
);
960 nouveau_scratch_get(struct nouveau_context
*nv
,
961 unsigned size
, uint64_t *gpu_addr
, struct nouveau_bo
**pbo
)
963 unsigned bgn
= nv
->scratch
.offset
;
964 unsigned end
= nv
->scratch
.offset
+ size
;
966 if (end
>= nv
->scratch
.end
) {
968 if (!nouveau_scratch_more(nv
, end
))
972 nv
->scratch
.offset
= align(end
, 4);
974 *pbo
= nv
->scratch
.current
;
975 *gpu_addr
= nv
->scratch
.current
->offset
+ bgn
;
976 return nv
->scratch
.map
+ bgn
;