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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2010-08-10 21:03:22 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-11 11:59:21 -0400
commit4565f0170dfc849b3629c27d769db800467baa62 (patch)
treea2c70fb6f2f4826749b704ed83557623ca95bca5 /arch/avr32/include
parenta6eb9fe105d5de0053b261148cee56c94b4720ca (diff)
dma-mapping: unify dma_get_cache_alignment implementations
dma_get_cache_alignment returns the minimum DMA alignment. Architectures defines it as ARCH_DMA_MINALIGN (formally ARCH_KMALLOC_MINALIGN). So we can unify dma_get_cache_alignment implementations. Note that some architectures implement dma_get_cache_alignment wrongly. dma_get_cache_alignment() should return the minimum DMA alignment. So fully-coherent architectures should return 1. This patch also fixes this issue. 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/avr32/include')
-rw-r--r--arch/avr32/include/asm/dma-mapping.h5
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index 0399359ab5d8..af6b81655074 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -341,9 +341,4 @@ static inline int dma_is_consistent(struct device *dev, dma_addr_t dma_addr)
341 return 1; 341 return 1;
342} 342}
343 343
344static inline int dma_get_cache_alignment(void)
345{
346 return boot_cpu_data.dcache.linesz;
347}
348
349#endif /* __ASM_AVR32_DMA_MAPPING_H */ 344#endif /* __ASM_AVR32_DMA_MAPPING_H */