[Mesa-dev] [PATCH] Revert "radeon: just don't map VRAM buffers at all"

[Leo Liu]

From: Leo Liu <leo.liu at amd.com>

This reverts commit 96e8b916a7a39a9ba58e92d1ad77b5501de63ac7.

Signed-off-by: Leo Liu <leo.liu at amd.com>
---
 src/gallium/drivers/radeon/r600_texture.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/radeon/r600_texture.c b/src/gallium/drivers/radeon/r600_texture.c
index 45a9508..3dfddca 100644
--- a/src/gallium/drivers/radeon/r600_texture.c
+++ b/src/gallium/drivers/radeon/r600_texture.c
@@ -928,8 +928,8 @@ static void *r600_texture_transfer_map(struct pipe_context *ctx,
 	if (rtex->surface.level[level].mode >= RADEON_SURF_MODE_1D)
 		use_staging_texture = TRUE;
 
-	/* Untiled buffers in VRAM, which is slow for CPU reads and writes */
-	if (!(usage & PIPE_TRANSFER_MAP_DIRECTLY) &&
+	/* Untiled buffers in VRAM, which is slow for CPU reads */
+	if ((usage & PIPE_TRANSFER_READ) && !(usage & PIPE_TRANSFER_MAP_DIRECTLY) &&
 	    (rtex->resource.domains == RADEON_DOMAIN_VRAM)) {
 		use_staging_texture = TRUE;
 	}
-- 
1.8.1.2