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authorTakashi Iwai <tiwai@suse.de>2016-02-08 10:16:55 +0300
committerTakashi Iwai <tiwai@suse.de>2016-02-08 10:16:55 +0300
commitc9e9daccc7a6a670a6619723138ace6752f4773b (patch)
treeed38356575314aec55deda66ef856a9bfeaaf282 /drivers/gpu/drm/radeon/radeon_object.c
parent1f5e35636cc2737ccf1f67815cb33b978621f0f6 (diff)
parentddce57a6f0a2d8d1bfacfa77f06043bc760403c2 (diff)
downloadlinux-c9e9daccc7a6a670a6619723138ace6752f4773b.tar.xz
Merge branch 'topic/core-fixes' into for-next
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_object.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_object.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 84d45633d28c..fb6ad143873f 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -33,6 +33,7 @@
#include <linux/slab.h>
#include <drm/drmP.h>
#include <drm/radeon_drm.h>
+#include <drm/drm_cache.h>
#include "radeon.h"
#include "radeon_trace.h"
@@ -245,6 +246,12 @@ int radeon_bo_create(struct radeon_device *rdev,
DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for "
"better performance thanks to write-combining\n");
bo->flags &= ~(RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC);
+#else
+ /* For architectures that don't support WC memory,
+ * mask out the WC flag from the BO
+ */
+ if (!drm_arch_can_wc_memory())
+ bo->flags &= ~RADEON_GEM_GTT_WC;
#endif
radeon_ttm_placement_from_domain(bo, domain);