linux-kernel - [PATCH 16/20] x86: align to clflush size

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Message-Id: <1206480999-21767-17-git-send-email-gcosta@redhat.com>
Date:	Tue, 25 Mar 2008 18:36:35 -0300
From:	Glauber Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, glommer@...il.com, mingo@...e.hu,
	tglx@...utronix.de, kvm-devel@...ts.sourceforge.net,
	avi@...ranet.com, amit.shah@...ranet.com
Subject: [PATCH 16/20] x86: align to clflush size

Do it instead of using the conservative approach we're currently
doing. This is the way x86_64 does, and this patch makes this piece
of code the same between them, ready to be integrated

Signed-off-by: Glauber Costa <gcosta@...hat.com>
---
 include/asm-x86/dma-mapping_32.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/asm-x86/dma-mapping_32.h b/include/asm-x86/dma-mapping_32.h
index fd7246d..d0512c9 100644
--- a/include/asm-x86/dma-mapping_32.h
+++ b/include/asm-x86/dma-mapping_32.h
@@ -21,7 +21,7 @@ dma_get_cache_alignment(void)
 {
 	/* no easy way to get cache size on all x86, so return the
 	 * maximum possible, to be safe */
-	return (1 << INTERNODE_CACHE_SHIFT);
+	return boot_cpu_data.x86_clflush_size;
 }
 
 #define dma_is_consistent(d, h)	(1)
-- 
1.5.0.6

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