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Diffstat (limited to 'include/asm-sh/dma-mapping.h')
| -rw-r--r-- | include/asm-sh/dma-mapping.h | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/include/asm-sh/dma-mapping.h b/include/asm-sh/dma-mapping.h deleted file mode 100644 index 6c0b8a2de143..000000000000 --- a/include/asm-sh/dma-mapping.h +++ /dev/null @@ -1,192 +0,0 @@ -#ifndef __ASM_SH_DMA_MAPPING_H -#define __ASM_SH_DMA_MAPPING_H - -#include <linux/mm.h> -#include <linux/scatterlist.h> -#include <asm/cacheflush.h> -#include <asm/io.h> - -extern struct bus_type pci_bus_type; - -#define dma_supported(dev, mask) (1) - -static inline int dma_set_mask(struct device *dev, u64 mask) -{ - if (!dev->dma_mask || !dma_supported(dev, mask)) - return -EIO; - - *dev->dma_mask = mask; - - return 0; -} - -void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag); - -void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle); - -void dma_cache_sync(struct device *dev, void *vaddr, size_t size, - enum dma_data_direction dir); - -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) -#define dma_is_consistent(d, h) (1) - -static inline dma_addr_t dma_map_single(struct device *dev, - void *ptr, size_t size, - enum dma_data_direction dir) -{ -#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT) - if (dev->bus == &pci_bus_type) - return virt_to_phys(ptr); -#endif - dma_cache_sync(dev, ptr, size, dir); - - return virt_to_phys(ptr); -} - -#define dma_unmap_single(dev, addr, size, dir) do { } while (0) - -static inline int dma_map_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir) -{ - int i; - - for (i = 0; i < nents; i++) { -#if !defined(CONFIG_PCI) || defined(CONFIG_SH_PCIDMA_NONCOHERENT) - dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir); -#endif - sg[i].dma_address = sg_phys(&sg[i]); - } - - return nents; -} - -#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0) - -static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction dir) -{ - return dma_map_single(dev, page_address(page) + offset, size, dir); -} - -static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address, - size_t size, enum dma_data_direction dir) -{ - dma_unmap_single(dev, dma_address, size, dir); -} - -static inline void dma_sync_single(struct device *dev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction dir) -{ -#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT) - if (dev->bus == &pci_bus_type) - return; -#endif - dma_cache_sync(dev, phys_to_virt(dma_handle), size, dir); -} - -static inline void dma_sync_single_range(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, size_t size, - enum dma_data_direction dir) -{ -#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT) - if (dev->bus == &pci_bus_type) - return; -#endif - dma_cache_sync(dev, phys_to_virt(dma_handle) + offset, size, dir); -} - -static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg, - int nelems, enum dma_data_direction dir) -{ - int i; - - for (i = 0; i < nelems; i++) { -#if !defined(CONFIG_PCI) || defined(CONFIG_SH_PCIDMA_NONCOHERENT) - dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir); -#endif - sg[i].dma_address = sg_phys(&sg[i]); - } -} - -static inline void dma_sync_single_for_cpu(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction dir) -{ - dma_sync_single(dev, dma_handle, size, dir); -} - -static inline void dma_sync_single_for_device(struct device *dev, - dma_addr_t dma_handle, - size_t size, - enum dma_data_direction dir) -{ - dma_sync_single(dev, dma_handle, size, dir); -} - -static inline void dma_sync_single_range_for_cpu(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - enum dma_data_direction direction) -{ - dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction); -} - -static inline void dma_sync_single_range_for_device(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - enum dma_data_direction direction) -{ - dma_sync_single_for_device(dev, dma_handle+offset, size, direction); -} - - -static inline void dma_sync_sg_for_cpu(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction dir) -{ - dma_sync_sg(dev, sg, nelems, dir); -} - -static inline void dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction dir) -{ - dma_sync_sg(dev, sg, nelems, dir); -} - - -static inline int dma_get_cache_alignment(void) -{ - /* - * Each processor family will define its own L1_CACHE_SHIFT, - * L1_CACHE_BYTES wraps to this, so this is always safe. - */ - return L1_CACHE_BYTES; -} - -static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return dma_addr == 0; -} - -#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY - -extern int -dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, - dma_addr_t device_addr, size_t size, int flags); - -extern void -dma_release_declared_memory(struct device *dev); - -extern void * -dma_mark_declared_memory_occupied(struct device *dev, - dma_addr_t device_addr, size_t size); - -#endif /* __ASM_SH_DMA_MAPPING_H */ |