If clflushopt is available on the system, use it instead of clflush in
drm_clflush_virt_range.
Signed-off-by: Ross Zwisler <ross.zwis...@linux.intel.com>
Cc: H Peter Anvin <h.peter.an...@intel.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Thomas Gleixner <t...@linutronix.de>
---
drivers/gpu/drm/drm_cache.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
index c518fb6..534cb89 100644
--- a/drivers/gpu/drm/drm_cache.c
+++ b/drivers/gpu/drm/drm_cache.c
@@ -139,7 +139,7 @@ drm_clflush_virt_range(char *addr, unsigned long length)
mb();
for (; addr < end; addr += boot_cpu_data.x86_clflush_size)
clflush(addr);
- clflush(end - 1);
+ clflushopt(end - 1);
mb();
return;
}
--
1.7.10.4
--
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