Commit 2a0788dc authored by Ross Zwisler's avatar Ross Zwisler Committed by H. Peter Anvin

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: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
Link: http://lkml.kernel.org/r/1393441612-19729-5-git-send-email-ross.zwisler@linux.intel.comSigned-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
parent 2a0c772f
...@@ -139,7 +139,7 @@ drm_clflush_virt_range(char *addr, unsigned long length) ...@@ -139,7 +139,7 @@ drm_clflush_virt_range(char *addr, unsigned long length)
mb(); mb();
for (; addr < end; addr += boot_cpu_data.x86_clflush_size) for (; addr < end; addr += boot_cpu_data.x86_clflush_size)
clflush(addr); clflush(addr);
clflush(end - 1); clflushopt(end - 1);
mb(); mb();
return; return;
} }
......
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