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panfrost: DRY buffer range special case

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Pattern from iris.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19576>
This commit is contained in:
Alyssa Rosenzweig 2022-11-07 10:54:27 -05:00 • committed by Marge Bot
parent f8553ef44c
commit fd0af2bb4d
1 changed files with 8 additions and 6 deletions
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14
src/gallium/drivers/panfrost/pan_resource.c
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@ -1000,6 +1000,14 @@ panfrost_ptr_map(struct pipe_context *pctx,
if (dev->debug & (PAN_DBG_TRACE | PAN_DBG_SYNC))
pandecode_inject_mmap(bo->ptr.gpu, bo->ptr.cpu, bo->size, NULL);
/* Upgrade writes to uninitialized ranges to UNSYNCHRONIZED */
if ((usage & PIPE_MAP_WRITE) &&
resource->target == PIPE_BUFFER &&
!util_ranges_intersect(&rsrc->valid_buffer_range, box->x, box->x + box->width)) {
usage |= PIPE_MAP_UNSYNCHRONIZED;
}
/* Upgrade DISCARD_RANGE to WHOLE_RESOURCE if the whole resource is
* being mapped.
*/
@ -1019,8 +1027,6 @@ panfrost_ptr_map(struct pipe_context *pctx,
!(usage & PIPE_MAP_UNSYNCHRONIZED) &&
!(resource->flags & PIPE_RESOURCE_FLAG_MAP_PERSISTENT) &&
(usage & PIPE_MAP_WRITE) &&
!(resource->target == PIPE_BUFFER
&& !util_ranges_intersect(&rsrc->valid_buffer_range, box->x, box->x + box->width)) &&
rsrc->track.nr_users > 0) {
/* When a resource to be modified is already being used by a
@ -1086,10 +1092,6 @@ panfrost_ptr_map(struct pipe_context *pctx,
panfrost_bo_wait(bo, INT64_MAX, true);
}
}
} else if ((usage & PIPE_MAP_WRITE)
&& resource->target == PIPE_BUFFER
&& !util_ranges_intersect(&rsrc->valid_buffer_range, box->x, box->x + box->width)) {
/* No flush for writes to uninitialized */
} else if (!(usage & PIPE_MAP_UNSYNCHRONIZED)) {
if (usage & PIPE_MAP_WRITE) {
panfrost_flush_batches_accessing_rsrc(ctx, rsrc, "Synchronized write");