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author | Marc Kleine-Budde <mkl@pengutronix.de> | 2012-06-20 13:57:32 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-06-30 12:46:25 +0200 |
commit | 74b3f12a2501da52be663da71c1284672ba3f4e7 (patch) | |
tree | baeb8032f9d81a1daecbb85d9ed2f7f6d3653154 /arch | |
parent | ed2180d658b9dbc1e56ddb2e0119253a8b99b2f5 (diff) | |
download | barebox-74b3f12a2501da52be663da71c1284672ba3f4e7.tar.gz barebox-74b3f12a2501da52be663da71c1284672ba3f4e7.tar.xz |
nios: add dma_alloc, asm/dma.h
This patch add dma_alloc to existing dma-mapping.h. On nios the mem is
aligned to D_ACHE_LINE_SIZE.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/nios2/include/asm/dma-mapping.h | 10 | ||||
-rw-r--r-- | arch/nios2/include/asm/dma.h | 8 |
2 files changed, 18 insertions, 0 deletions
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h index 5b70f4cead..9819a973e7 100644 --- a/arch/nios2/include/asm/dma-mapping.h +++ b/arch/nios2/include/asm/dma-mapping.h @@ -1,8 +1,12 @@ #ifndef __ASM_NIOS2_DMA_MAPPING_H #define __ASM_NIOS2_DMA_MAPPING_H +#include <common.h> +#include <xfuncs.h> + #include <asm/cache.h> + /* dma_alloc_coherent() return cache-line aligned allocation which is mapped * to uncached io region. * @@ -22,4 +26,10 @@ static inline void *dma_alloc_coherent(size_t len, unsigned long *handle) return (void *)(*handle | IO_REGION_BASE); } +#define dma_alloc dma_alloc +static inline void *dma_alloc(size_t size) +{ + return xmemalign(DCACHE_LINE_SIZE, ALIGN(size, DCACHE_LINE_SIZE)); +} + #endif /* __ASM_NIOS2_DMA_MAPPING_H */ diff --git a/arch/nios2/include/asm/dma.h b/arch/nios2/include/asm/dma.h new file mode 100644 index 0000000000..8f709d2dbf --- /dev/null +++ b/arch/nios2/include/asm/dma.h @@ -0,0 +1,8 @@ +/* + * Copyright (C) 2012 by Marc Kleine-Budde <mkl@pengutronix.de> + * + * This file is released under the GPLv2 + * + */ + +#include <asm/dma-mapping.h> |