diff options
Diffstat (limited to 'arch/ia64/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/ia64/include/asm/dma-mapping.h | 146 |
1 files changed, 39 insertions, 107 deletions
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h index 36c0009dbec..cf3ab7e784b 100644 --- a/arch/ia64/include/asm/dma-mapping.h +++ b/arch/ia64/include/asm/dma-mapping.h @@ -8,9 +8,12 @@ #include <asm/machvec.h> #include <linux/scatterlist.h> #include <asm/swiotlb.h> +#include <linux/dma-debug.h> #define ARCH_HAS_DMA_GET_REQUIRED_MASK +#define DMA_ERROR_CODE 0 + extern struct dma_map_ops *dma_ops; extern struct ia64_machine_vector ia64_mv; extern void set_iommu_machvec(void); @@ -20,130 +23,45 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t, extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int, enum dma_data_direction); -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *daddr, gfp_t gfp) -{ - struct dma_map_ops *ops = platform_dma_get_ops(dev); - return ops->alloc_coherent(dev, size, daddr, gfp); -} - -static inline void dma_free_coherent(struct device *dev, size_t size, - void *caddr, dma_addr_t daddr) -{ - struct dma_map_ops *ops = platform_dma_get_ops(dev); - ops->free_coherent(dev, size, caddr, daddr); -} - -#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_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) -static inline dma_addr_t dma_map_single_attrs(struct device *dev, - void *caddr, size_t size, - enum dma_data_direction dir, - struct dma_attrs *attrs) +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *daddr, gfp_t gfp, + struct dma_attrs *attrs) { struct dma_map_ops *ops = platform_dma_get_ops(dev); - return ops->map_page(dev, virt_to_page(caddr), - (unsigned long)caddr & ~PAGE_MASK, size, - dir, attrs); -} + void *caddr; -static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr, - size_t size, - enum dma_data_direction dir, - struct dma_attrs *attrs) -{ - struct dma_map_ops *ops = platform_dma_get_ops(dev); - ops->unmap_page(dev, daddr, size, dir, attrs); + caddr = ops->alloc(dev, size, daddr, gfp, attrs); + debug_dma_alloc_coherent(dev, size, *daddr, caddr); + return caddr; } -#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL) -#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) -static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl, - int nents, enum dma_data_direction dir, - struct dma_attrs *attrs) +static inline void dma_free_attrs(struct device *dev, size_t size, + void *caddr, dma_addr_t daddr, + struct dma_attrs *attrs) { struct dma_map_ops *ops = platform_dma_get_ops(dev); - return ops->map_sg(dev, sgl, nents, dir, attrs); + debug_dma_free_coherent(dev, size, caddr, daddr); + ops->free(dev, size, caddr, daddr, attrs); } -static inline void dma_unmap_sg_attrs(struct device *dev, - struct scatterlist *sgl, int nents, - enum dma_data_direction dir, - struct dma_attrs *attrs) -{ - struct dma_map_ops *ops = platform_dma_get_ops(dev); - ops->unmap_sg(dev, sgl, nents, dir, attrs); -} - -#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL) -#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL) +#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) -static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t daddr, - size_t size, - enum dma_data_direction dir) -{ - struct dma_map_ops *ops = platform_dma_get_ops(dev); - ops->sync_single_for_cpu(dev, daddr, size, dir); -} +#define get_dma_ops(dev) platform_dma_get_ops(dev) -static inline void dma_sync_sg_for_cpu(struct device *dev, - struct scatterlist *sgl, - int nents, enum dma_data_direction dir) -{ - struct dma_map_ops *ops = platform_dma_get_ops(dev); - ops->sync_sg_for_cpu(dev, sgl, nents, dir); -} - -static inline void dma_sync_single_for_device(struct device *dev, - dma_addr_t daddr, - size_t size, - enum dma_data_direction dir) -{ - struct dma_map_ops *ops = platform_dma_get_ops(dev); - ops->sync_single_for_device(dev, daddr, size, dir); -} - -static inline void dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sgl, - int nents, - enum dma_data_direction dir) -{ - struct dma_map_ops *ops = platform_dma_get_ops(dev); - ops->sync_sg_for_device(dev, sgl, nents, dir); -} +#include <asm-generic/dma-mapping-common.h> static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr) { struct dma_map_ops *ops = platform_dma_get_ops(dev); + debug_dma_mapping_error(dev, daddr); return ops->mapping_error(dev, daddr); } -static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, - size_t offset, size_t size, - enum dma_data_direction dir) -{ - struct dma_map_ops *ops = platform_dma_get_ops(dev); - return ops->map_page(dev, page, offset, size, dir, NULL); -} - -static inline void dma_unmap_page(struct device *dev, dma_addr_t addr, - size_t size, enum dma_data_direction dir) -{ - dma_unmap_single(dev, addr, size, dir); -} - -/* - * Rest of this file is part of the "Advanced DMA API". Use at your own risk. - * See Documentation/DMA-API.txt for details. - */ - -#define dma_sync_single_range_for_cpu(dev, dma_handle, offset, size, dir) \ - dma_sync_single_for_cpu(dev, dma_handle, size, dir) -#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \ - dma_sync_single_for_device(dev, dma_handle, size, dir) - static inline int dma_supported(struct device *dev, u64 mask) { struct dma_map_ops *ops = platform_dma_get_ops(dev); @@ -159,7 +77,23 @@ dma_set_mask (struct device *dev, u64 mask) return 0; } -extern int dma_get_cache_alignment(void); +static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) +{ + if (!dev->dma_mask) + return 0; + + return addr + size - 1 <= *dev->dma_mask; +} + +static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) +{ + return paddr; +} + +static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) +{ + return daddr; +} static inline void dma_cache_sync (struct device *dev, void *vaddr, size_t size, @@ -172,6 +106,4 @@ dma_cache_sync (struct device *dev, void *vaddr, size_t size, mb(); } -#define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */ - #endif /* _ASM_IA64_DMA_MAPPING_H */ |