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authorThierry Reding <treding@nvidia.com>2014-06-27 11:56:58 +0200
committerMarek Szyprowski <m.szyprowski@samsung.com>2014-08-26 07:39:13 +0200
commitb4bbb107d73bbc0d92c9ae7fd8e69580aa9381e7 (patch)
treec631cccdc40abe3d44fc980a739fb20ec4354d3f /arch
parent90114d65feea716eeae0ab51e92c95b140b2e6fc (diff)
downloadlinux-b4bbb107d73bbc0d92c9ae7fd8e69580aa9381e7.tar.bz2
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')
-rw-r--r--arch/arm/include/asm/dma-mapping.h16
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