From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>,
David Airlie <airlied@linux.ie>,
dri-devel@lists.freedesktop.org,
H Peter Anvin <h.peter.anvin@intel.com>,
Ingo Molnar <mingo@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH] drm: Missed clflushopt in drm_clflush_virt_range
Date: Wed, 14 May 2014 09:41:12 -0600 [thread overview]
Message-ID: <1400082072-22482-1-git-send-email-ross.zwisler@linux.intel.com> (raw)
With this commit:
2a0788dc9bc4 x86: Use clflushopt in drm_clflush_virt_range
If clflushopt is available on the system, we use it instead of clflush
in drm_clflush_virt_range. There were two calls to clflush in this
function, but only one was changed to clflushopt. This patch changes
the other clflush call to clflushopt.
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reported-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Cc: H Peter Anvin <h.peter.anvin@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@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 534cb89..041b73b 100644
--- a/drivers/gpu/drm/drm_cache.c
+++ b/drivers/gpu/drm/drm_cache.c
@@ -138,7 +138,7 @@ drm_clflush_virt_range(char *addr, unsigned long length)
char *end = addr + length;
mb();
for (; addr < end; addr += boot_cpu_data.x86_clflush_size)
- clflush(addr);
+ clflushopt(addr);
clflushopt(end - 1);
mb();
return;
--
1.9.0
next reply other threads:[~2014-05-14 15:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-14 15:41 Ross Zwisler [this message]
2014-05-15 12:38 ` Daniel Vetter
2014-05-15 14:37 ` H. Peter Anvin
2014-05-15 20:40 ` Daniel Vetter
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