1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
index 059f7c39c582..a7916e5f8864 100644
--- a/drivers/gpu/drm/drm_cache.c
+++ b/drivers/gpu/drm/drm_cache.c
@@ -136,6 +136,7 @@ drm_clflush_virt_range(void *addr, unsigned long length)
                 mb();
                 for (; addr < end; addr += size)
                         clflushopt(addr);
+                clflushopt(end - 1); /* force serialisation */
                 mb();
                 return;
         }