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Message-Id: <1393441612-19729-5-git-send-email-ross.zwisler@linux.intel.com>
Date: Wed, 26 Feb 2014 12:06:52 -0700
From: Ross Zwisler <ross.zwisler@...ux.intel.com>
To: linux-kernel@...r.kernel.org
Cc: Ross Zwisler <ross.zwisler@...ux.intel.com>,
H Peter Anvin <h.peter.anvin@...el.com>,
Ingo Molnar <mingo@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 4/4] x86: Use clflushopt in drm_clflush_virt_range
If clflushopt is available on the system, use it instead of clflush in
drm_clflush_virt_range.
Signed-off-by: Ross Zwisler <ross.zwisler@...ux.intel.com>
Cc: H Peter Anvin <h.peter.anvin@...el.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.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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