Messages in this thread Patch in this message | | | From | Geert Uytterhoeven <> | Subject | [PATCH 1/2] m68k: Provide dma_alloc_attrs()/dma_free_attrs() | Date | Sun, 16 Dec 2012 18:38:46 +0100 |
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Since commit 0049fb2603b7afb1080776ee691dfa5a3d282357 ("OMAPFB: use dma_alloc_attrs to allocate memory") we have one non-arch user of dma_{alloc,free}_attrs().
Hence provide these functions, as wrappers around dma_{alloc,free}_coherent().
Note that most architectures do it the other way around. But as so far m68k doesn't support the attributes at all, our solution should generate smaller code.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> --- arch/m68k/include/asm/dma-mapping.h | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h index 17f7a45..3e6b844 100644 --- a/arch/m68k/include/asm/dma-mapping.h +++ b/arch/m68k/include/asm/dma-mapping.h @@ -21,6 +21,22 @@ extern void *dma_alloc_coherent(struct device *, size_t, extern void dma_free_coherent(struct device *, size_t, void *, dma_addr_t); +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) +{ + /* attrs is not supported and ignored */ + return dma_alloc_coherent(dev, size, dma_handle, flag); +} + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) +{ + /* attrs is not supported and ignored */ + dma_free_coherent(dev, size, cpu_addr, dma_handle); +} + static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t flag) { -- 1.7.0.4
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