freedreno: use writecombine buffers

Better than uncached for writes, which are common for vertex buffer
upload, etc.

Signed-off-by: Rob Clark <robclark@freedesktop.org>

diff --git a/src/gallium/drivers/freedreno/freedreno_resource.c b/src/gallium/drivers/freedreno/freedreno_resource.c
index b5efdce..00f3db8 100644 (file)
--- a/src/gallium/drivers/freedreno/freedreno_resource.c
+++ b/src/gallium/drivers/freedreno/freedreno_resource.c
@@ -155,7 +155,8 @@ fd_resource_create(struct pipe_screen *pscreen,
        rsc->cpp = util_format_get_blocksize(tmpl->format);
 
        size = rsc->pitch * tmpl->height0 * rsc->cpp;
-       flags = DRM_FREEDRENO_GEM_TYPE_KMEM; /* TODO */
+       flags = DRM_FREEDRENO_GEM_CACHE_WCOMBINE |
+                       DRM_FREEDRENO_GEM_TYPE_KMEM; /* TODO */
 
        rsc->bo = fd_bo_new(screen->dev, size, flags);