diff options
Diffstat (limited to 'arch/arm/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 7a21d0bf7134..19e3c8c77f01 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -75,6 +75,27 @@ static inline dma_addr_t virt_to_dma(struct device *dev, void *addr) * Private support functions: these are not part of the API and are * liable to change. Drivers must not use these. */ +#if defined(CONFIG_NON_ALIASED_COHERENT_MEM) +static inline void __dma_single_cpu_to_dev(struct device *dev, + const void *kaddr, size_t size, enum dma_data_direction dir) +{ + extern void ___dma_single_cpu_to_dev(struct device *dev, + const void *, size_t, enum dma_data_direction); + + if (!arch_is_coherent()) + ___dma_single_cpu_to_dev(dev, kaddr, size, dir); +} + +static inline void __dma_single_dev_to_cpu(struct device *dev, + const void *kaddr, size_t size, enum dma_data_direction dir) +{ + extern void ___dma_single_dev_to_cpu(struct device *dev, + const void *, size_t, enum dma_data_direction); + + if (!arch_is_coherent()) + ___dma_single_dev_to_cpu(dev, kaddr, size, dir); +} +#else static inline void __dma_single_cpu_to_dev(const void *kaddr, size_t size, enum dma_data_direction dir) { @@ -94,6 +115,7 @@ static inline void __dma_single_dev_to_cpu(const void *kaddr, size_t size, if (!arch_is_coherent()) ___dma_single_dev_to_cpu(kaddr, size, dir); } +#endif static inline void __dma_page_cpu_to_dev(struct page *page, unsigned long off, size_t size, enum dma_data_direction dir) @@ -199,8 +221,12 @@ int dma_mmap_coherent(struct device *, struct vm_area_struct *, extern void *dma_alloc_writecombine(struct device *, size_t, dma_addr_t *, gfp_t); +#if defined(CONFIG_NON_ALIASED_COHERENT_MEM) +extern void dma_free_writecombine(struct device *, size_t, void *, dma_addr_t); +#else #define dma_free_writecombine(dev,size,cpu_addr,handle) \ dma_free_coherent(dev,size,cpu_addr,handle) +#endif int dma_mmap_writecombine(struct device *, struct vm_area_struct *, void *, dma_addr_t, size_t); @@ -421,7 +447,12 @@ static inline void dma_sync_single_range_for_cpu(struct device *dev, if (!dmabounce_sync_for_cpu(dev, handle, offset, size, dir)) return; +#if defined(CONFIG_NON_ALIASED_COHERENT_MEM) + __dma_single_dev_to_cpu(dev, dma_to_virt(dev, handle) + offset, + size, dir); +#else __dma_single_dev_to_cpu(dma_to_virt(dev, handle) + offset, size, dir); +#endif } static inline void dma_sync_single_range_for_device(struct device *dev, @@ -435,7 +466,12 @@ static inline void dma_sync_single_range_for_device(struct device *dev, if (!dmabounce_sync_for_device(dev, handle, offset, size, dir)) return; +#if defined(CONFIG_NON_ALIASED_COHERENT_MEM) + __dma_single_cpu_to_dev(dev, dma_to_virt(dev, handle) + offset, + size, dir); +#else __dma_single_cpu_to_dev(dma_to_virt(dev, handle) + offset, size, dir); +#endif } static inline void dma_sync_single_for_cpu(struct device *dev, |