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| author | Laura Abbott <lauraa@codeaurora.org> | 2014-07-31 12:43:26 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:04:04 -0700 |
| commit | 2e3f26f0691a0ef4d9c315cda10c33720492fc2d (patch) | |
| tree | 8da4588e17a991c2df21b96f52576408263c7ff7 /include | |
| parent | cb22ca6421aeb9f3835fae4ef7d965dd6be9d7b9 (diff) | |
arm64: Add dma mapping APIs for other memory types
Users of dma on arm may call dma_*_writecombine and dma_*_nonconsistent.
Add these functions for arm64 as well.
Change-Id: I213f8314022969bcefbfcd8581725762c385fb18
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/dma-mapping-common.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/asm-generic/dma-mapping-common.h b/include/asm-generic/dma-mapping-common.h index 0b1bd1f9f6c7..5956fef011fe 100644 --- a/include/asm-generic/dma-mapping-common.h +++ b/include/asm-generic/dma-mapping-common.h @@ -328,6 +328,29 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) #endif } +static inline void *dma_alloc_nonconsistent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) +{ + DEFINE_DMA_ATTRS(attrs); + dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs); + return dma_alloc_attrs(dev, size, dma_handle, flag, &attrs); +} + +static inline void dma_free_nonconsistent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle) +{ + DEFINE_DMA_ATTRS(attrs); + dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs); + return dma_free_attrs(dev, size, cpu_addr, dma_handle, &attrs); +} + +static inline int dma_mmap_nonconsistent(struct device *dev, + struct vm_area_struct *vma, void *cpu_addr, + dma_addr_t dma_addr, size_t size) +{ + return -ENODEV; +} + #ifndef HAVE_ARCH_DMA_SUPPORTED static inline int dma_supported(struct device *dev, u64 mask) { |