[PATCH 4.5 085/200] drm: Loongson-3 doesnt fully support wc memory

Greg Kroah-Hartman
2016-05-03T00:42:03Z

From: Huacai Chen <chenhc@lemote.com>

commit 221004c66a58949a0f25c937a6789c0839feb530 upstream.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
include/drm/drm_cache.h | 2 ++
1 file changed, 2 insertions(+)

--- a/include/drm/drm_cache.h
+++ b/include/drm/drm_cache.h
@@ -39,6 +39,8 @@ static inline bool drm_arch_can_wc_memor
{
#if defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE)
return false;
+#elif defined(CONFIG_MIPS) && defined(CONFIG_CPU_LOONGSON3)
+ return false;
#else
return true;
#endif