Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / drivers / gpu / drm / drm_cache.c

diff --git a/kernel/drivers/gpu/drm/drm_cache.c b/kernel/drivers/gpu/drm/drm_cache.c
index 6743ff7..7f4a6c5 100644 (file)
--- a/kernel/drivers/gpu/drm/drm_cache.c
+++ b/kernel/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;
        }