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-rw-r--r--src/gallium/drivers/radeon/r600_buffer_common.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/src/gallium/drivers/radeon/r600_buffer_common.c b/src/gallium/drivers/radeon/r600_buffer_common.c
index da6f0206d78..762181fb9d1 100644
--- a/src/gallium/drivers/radeon/r600_buffer_common.c
+++ b/src/gallium/drivers/radeon/r600_buffer_common.c
@@ -381,11 +381,11 @@ static void *r600_buffer_transfer_map(struct pipe_context *ctx,
usage |= PIPE_TRANSFER_UNSYNCHRONIZED;
}
}
- /* Using a staging buffer in GTT for larger reads is much faster. */
+ /* Use a staging buffer in cached GTT for reads. */
else if ((usage & PIPE_TRANSFER_READ) &&
- !(usage & (PIPE_TRANSFER_WRITE |
- PIPE_TRANSFER_PERSISTENT)) &&
- rbuffer->domains & RADEON_DOMAIN_VRAM &&
+ !(usage & PIPE_TRANSFER_PERSISTENT) &&
+ (rbuffer->domains & RADEON_DOMAIN_VRAM ||
+ rbuffer->flags & RADEON_FLAG_GTT_WC) &&
r600_can_dma_copy_buffer(rctx, 0, box->x, box->width)) {
struct r600_resource *staging;
@@ -394,11 +394,12 @@ static void *r600_buffer_transfer_map(struct pipe_context *ctx,
box->width + (box->x % R600_MAP_BUFFER_ALIGNMENT));
if (staging) {
/* Copy the VRAM buffer to the staging buffer. */
- ctx->resource_copy_region(ctx, &staging->b.b, 0,
- box->x % R600_MAP_BUFFER_ALIGNMENT,
- 0, 0, resource, level, box);
+ rctx->dma_copy(ctx, &staging->b.b, 0,
+ box->x % R600_MAP_BUFFER_ALIGNMENT,
+ 0, 0, resource, 0, box);
- data = r600_buffer_map_sync_with_rings(rctx, staging, PIPE_TRANSFER_READ);
+ data = r600_buffer_map_sync_with_rings(rctx, staging,
+ usage & ~PIPE_TRANSFER_UNSYNCHRONIZED);
if (!data) {
r600_resource_reference(&staging, NULL);
return NULL;