diff options
Diffstat (limited to 'arch/sparc/include/asm/dma.h')
-rw-r--r-- | arch/sparc/include/asm/dma.h | 48 |
1 files changed, 2 insertions, 46 deletions
diff --git a/arch/sparc/include/asm/dma.h b/arch/sparc/include/asm/dma.h index a1d7c86917c6..462e7c794a09 100644 --- a/arch/sparc/include/asm/dma.h +++ b/arch/sparc/include/asm/dma.h @@ -91,54 +91,10 @@ extern int isa_dma_bridge_buggy; #endif #ifdef CONFIG_SPARC32 - -/* Routines for data transfer buffers. */ struct device; -struct scatterlist; - -struct sparc32_dma_ops { - __u32 (*get_scsi_one)(struct device *, char *, unsigned long); - void (*get_scsi_sgl)(struct device *, struct scatterlist *, int); - void (*release_scsi_one)(struct device *, __u32, unsigned long); - void (*release_scsi_sgl)(struct device *, struct scatterlist *,int); -#ifdef CONFIG_SBUS - int (*map_dma_area)(struct device *, dma_addr_t *, unsigned long, unsigned long, int); - void (*unmap_dma_area)(struct device *, unsigned long, int); -#endif -}; -extern const struct sparc32_dma_ops *sparc32_dma_ops; - -#define mmu_get_scsi_one(dev,vaddr,len) \ - sparc32_dma_ops->get_scsi_one(dev, vaddr, len) -#define mmu_get_scsi_sgl(dev,sg,sz) \ - sparc32_dma_ops->get_scsi_sgl(dev, sg, sz) -#define mmu_release_scsi_one(dev,vaddr,len) \ - sparc32_dma_ops->release_scsi_one(dev, vaddr,len) -#define mmu_release_scsi_sgl(dev,sg,sz) \ - sparc32_dma_ops->release_scsi_sgl(dev, sg, sz) - -#ifdef CONFIG_SBUS -/* - * mmu_map/unmap are provided by iommu/iounit; Invalid to call on IIep. - * - * The mmu_map_dma_area establishes two mappings in one go. - * These mappings point to pages normally mapped at 'va' (linear address). - * First mapping is for CPU visible address at 'a', uncached. - * This is an alias, but it works because it is an uncached mapping. - * Second mapping is for device visible address, or "bus" address. - * The bus address is returned at '*pba'. - * - * These functions seem distinct, but are hard to split. - * On sun4m, page attributes depend on the CPU type, so we have to - * know if we are mapping RAM or I/O, so it has to be an additional argument - * to a separate mapping function for CPU visible mappings. - */ -#define sbus_map_dma_area(dev,pba,va,a,len) \ - sparc32_dma_ops->map_dma_area(dev, pba, va, a, len) -#define sbus_unmap_dma_area(dev,ba,len) \ - sparc32_dma_ops->unmap_dma_area(dev, ba, len) -#endif /* CONFIG_SBUS */ +unsigned long sparc_dma_alloc_resource(struct device *dev, size_t len); +bool sparc_dma_free_resource(void *cpu_addr, size_t size); #endif #endif /* !(_ASM_SPARC_DMA_H) */ |