From: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Oded Gabbay <oded.gabbay@xxxxxxxxx>
---
include/drm/drm_cache.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/drm/drm_cache.h b/include/drm/drm_cache.h
index 7bfb063..461a055 100644
--- a/include/drm/drm_cache.h
+++ b/include/drm/drm_cache.h
@@ -35,4 +35,13 @@
void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
+static inline bool drm_arch_can_wc_memory(void)
+{
+#if defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE)
+ return false;
+#else
+ return true;
+#endif
+}
+
#endif
--
2.5.0
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