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Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
gpu
/
drm
/
radeon
/
radeon_object.c
diff --git
a/drivers/gpu/drm/radeon/radeon_object.c
b/drivers/gpu/drm/radeon/radeon_object.c
index 84d45633d28c9b1c58f58dc6ec6383eba2207230..fb6ad143873f5b40d2c027a20dd25914dbd5e29e 100644
(file)
--- 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 <linux/slab.h>
#include <drm/drmP.h>
#include <drm/radeon_drm.h>
+#include <drm/drm_cache.h>
#include "radeon.h"
#include "radeon_trace.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);
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);
#endif
radeon_ttm_placement_from_domain(bo, domain);