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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2010-08-10 18:03:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-11 08:59:21 -0700
commita6eb9fe105d5de0053b261148cee56c94b4720ca (patch)
tree36e3f324a6a768397ef398674176c0f5f5365bff /arch/mips/include
parentcd1542c8197fc3c2eb3a8301505d5d9738fab1e4 (diff)
dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN
Now each architecture has the own dma_get_cache_alignment implementation. dma_get_cache_alignment returns the minimum DMA alignment. Architectures define it as ARCH_KMALLOC_MINALIGN (it's used to make sure that malloc'ed buffer is DMA-safe; the buffer doesn't share a cache with the others). So we can unify dma_get_cache_alignment implementations. This patch: dma_get_cache_alignment() needs to know if an architecture defines ARCH_KMALLOC_MINALIGN or not (needs to know if architecture has DMA alignment restriction). However, slab.h define ARCH_KMALLOC_MINALIGN if architectures doesn't define it. Let's rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN. ARCH_KMALLOC_MINALIGN is used only in the internals of slab/slob/slub (except for crypto). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/mips/include')
-rw-r--r--arch/mips/include/asm/mach-generic/kmalloc.h2
-rw-r--r--arch/mips/include/asm/mach-ip27/kmalloc.h2
-rw-r--r--arch/mips/include/asm/mach-ip32/kmalloc.h4
3 files changed, 4 insertions, 4 deletions
diff --git a/arch/mips/include/asm/mach-generic/kmalloc.h b/arch/mips/include/asm/mach-generic/kmalloc.h
index b8e6deba352f..a5d669086ed9 100644
--- a/arch/mips/include/asm/mach-generic/kmalloc.h
+++ b/arch/mips/include/asm/mach-generic/kmalloc.h
@@ -7,7 +7,7 @@
* Total overkill for most systems but need as a safe default.
* Set this one if any device in the system might do non-coherent DMA.
*/
-#define ARCH_KMALLOC_MINALIGN 128
+#define ARCH_DMA_MINALIGN 128
#endif
#endif /* __ASM_MACH_GENERIC_KMALLOC_H */
diff --git a/arch/mips/include/asm/mach-ip27/kmalloc.h b/arch/mips/include/asm/mach-ip27/kmalloc.h
index 426bd049b2d7..82c23ce2afa7 100644
--- a/arch/mips/include/asm/mach-ip27/kmalloc.h
+++ b/arch/mips/include/asm/mach-ip27/kmalloc.h
@@ -2,7 +2,7 @@
#define __ASM_MACH_IP27_KMALLOC_H
/*
- * All happy, no need to define ARCH_KMALLOC_MINALIGN
+ * All happy, no need to define ARCH_DMA_MINALIGN
*/
#endif /* __ASM_MACH_IP27_KMALLOC_H */
diff --git a/arch/mips/include/asm/mach-ip32/kmalloc.h b/arch/mips/include/asm/mach-ip32/kmalloc.h
index b1e0be60f720..042ca926c48f 100644
--- a/arch/mips/include/asm/mach-ip32/kmalloc.h
+++ b/arch/mips/include/asm/mach-ip32/kmalloc.h
@@ -3,9 +3,9 @@
#if defined(CONFIG_CPU_R5000) || defined(CONFIG_CPU_RM7000)
-#define ARCH_KMALLOC_MINALIGN 32
+#define ARCH_DMA_MINALIGN 32
#else
-#define ARCH_KMALLOC_MINALIGN 128
+#define ARCH_DMA_MINALIGN 128
#endif
#endif /* __ASM_MACH_IP32_KMALLOC_H */

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