Revert "radeon: just don't map VRAM buffers at all"

[mesa.git] / src / gallium / drivers / radeon / r600_texture.c

diff --git a/src/gallium/drivers/radeon/r600_texture.c b/src/gallium/drivers/radeon/r600_texture.c
index 45a950885349dfaea9be337f762e083570101ef8..3dfddca8b1cecc70628a1a8066dd738e730369c8 100644 (file)
--- 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;
        }