linux-kernel - [PATCH 5/7] [RFC] force 32-byte aligned kmallocs

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Date:	Wed, 18 May 2011 16:24:53 -0500
From:	Eric Van Hensbergen <ericvh@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	linuxppc-dev@...ts.ozlabs.org, bg-linux@...ts.anl-external.org,
	Eric Van Hensbergen <ericvh@...il.com>
Subject: [PATCH 5/7] [RFC] force 32-byte aligned kmallocs

For BGP, it is convenient for 'kmalloc' to come back with 32-byte
aligned units for torus DMA

Signed-off-by: Eric Van Hensbergen <ericvh@...il.com>
---
 arch/powerpc/include/asm/page_32.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/include/asm/page_32.h b/arch/powerpc/include/asm/page_32.h
index 68d73b2..fb0a7ae 100644
--- a/arch/powerpc/include/asm/page_32.h
+++ b/arch/powerpc/include/asm/page_32.h
@@ -9,7 +9,7 @@
 
 #define VM_DATA_DEFAULT_FLAGS	VM_DATA_DEFAULT_FLAGS32
 
-#ifdef CONFIG_NOT_COHERENT_CACHE
+#if defined(CONFIG_NOT_COHERENT_CACHE) || defined(CONFIG_BGP)
 #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
 #endif
 
-- 
1.7.4.1

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