1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/char/drm/drm_scatter.c b/drivers/char/drm/drm_scatter.c
index 26d8f675ed5d..b2b0f3d41714 100644
--- a/drivers/char/drm/drm_scatter.c
+++ b/drivers/char/drm/drm_scatter.c
@@ -36,6 +36,15 @@
 
 #define DEBUG_SCATTER 0
 
+static inline void *drm_vmalloc_dma(unsigned long size)
+{
+#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE)
+        return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL | _PAGE_NO_CACHE);
+#else
+        return vmalloc_32(size);
+#endif
+}
+
 void drm_sg_cleanup(struct drm_sg_mem * entry)
 {
         struct page *page;
@@ -104,7 +113,7 @@ int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request)
         }
         memset((void *)entry->busaddr, 0, pages * sizeof(*entry->busaddr));
 
-        entry->virtual = vmalloc_32(pages << PAGE_SHIFT);
+        entry->virtual = drm_vmalloc_dma(pages << PAGE_SHIFT);
         if (!entry->virtual) {
                 drm_free(entry->busaddr,
                          entry->pages * sizeof(*entry->busaddr), DRM_MEM_PAGES);