diff options
| author |   Thierry Reding <treding@nvidia.com> | 2014-06-27 11:56:58 +0200 |
|---|---|---|
| committer |   Marek Szyprowski <m.szyprowski@samsung.com> | 2014-08-26 07:39:13 +0200 |
| commit | b4bbb107d73bbc0d92c9ae7fd8e69580aa9381e7 (patch) | |
| tree | c631cccdc40abe3d44fc980a739fb20ec4354d3f /arch/arm/include/asm/dma-mapping.h | |
| parent | s390: Implement dma_{alloc,free}_attrs() (diff) | |
| download | linux-dev-b4bbb107d73bbc0d92c9ae7fd8e69580aa9381e7.tar.xz linux-dev-b4bbb107d73bbc0d92c9ae7fd8e69580aa9381e7.zip | |
dma-mapping: Provide write-combine allocations
Provide an implementation for dma_{alloc,free,mmap}_writecombine() when
the architecture supports DMA attributes.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Diffstat (limited to 'arch/arm/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index c45b61a4b4a5..85738b200023 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -265,22 +265,6 @@ extern int arm_dma_mmap(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t dma_addr, size_t size, struct dma_attrs *attrs); -static inline void *dma_alloc_writecombine(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) -{ - DEFINE_DMA_ATTRS(attrs); - dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs); - return dma_alloc_attrs(dev, size, dma_handle, flag, &attrs); -} - -static inline void dma_free_writecombine(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) -{ - DEFINE_DMA_ATTRS(attrs); - dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs); - return dma_free_attrs(dev, size, cpu_addr, dma_handle, &attrs); -} - /* * This can be called during early boot to increase the size of the atomic * coherent DMA pool above the default value of 256KiB. It must be called |