From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Fri, 25 Mar 2016 03:53:42 -0300 Subject: Linux-libre 4.5-gnu --- arch/metag/include/asm/dma-mapping.h | 179 +---------------------------------- 1 file changed, 3 insertions(+), 176 deletions(-) (limited to 'arch/metag/include/asm/dma-mapping.h') diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h index eb5cdec94..27af5d479 100644 --- a/arch/metag/include/asm/dma-mapping.h +++ b/arch/metag/include/asm/dma-mapping.h @@ -1,177 +1,11 @@ #ifndef _ASM_METAG_DMA_MAPPING_H #define _ASM_METAG_DMA_MAPPING_H -#include +extern struct dma_map_ops metag_dma_ops; -#include -#include -#include -#include - -#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) - -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_sync_for_device(void *vaddr, size_t size, int dma_direction); -void dma_sync_for_cpu(void *vaddr, size_t size, int dma_direction); - -int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma, - void *cpu_addr, dma_addr_t dma_addr, size_t size); - -int dma_mmap_writecombine(struct device *dev, struct vm_area_struct *vma, - void *cpu_addr, dma_addr_t dma_addr, size_t size); - -static inline dma_addr_t -dma_map_single(struct device *dev, void *ptr, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(!valid_dma_direction(direction)); - WARN_ON(size == 0); - dma_sync_for_device(ptr, size, direction); - return virt_to_phys(ptr); -} - -static inline void -dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(!valid_dma_direction(direction)); - dma_sync_for_cpu(phys_to_virt(dma_addr), size, direction); -} - -static inline int -dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents, - enum dma_data_direction direction) -{ - struct scatterlist *sg; - int i; - - BUG_ON(!valid_dma_direction(direction)); - WARN_ON(nents == 0 || sglist[0].length == 0); - - for_each_sg(sglist, sg, nents, i) { - BUG_ON(!sg_page(sg)); - - sg->dma_address = sg_phys(sg); - dma_sync_for_device(sg_virt(sg), sg->length, direction); - } - - return nents; -} - -static inline dma_addr_t -dma_map_page(struct device *dev, struct page *page, unsigned long offset, - size_t size, enum dma_data_direction direction) -{ - BUG_ON(!valid_dma_direction(direction)); - dma_sync_for_device((void *)(page_to_phys(page) + offset), size, - direction); - return page_to_phys(page) + offset; -} - -static inline void -dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(!valid_dma_direction(direction)); - dma_sync_for_cpu(phys_to_virt(dma_address), size, direction); -} - - -static inline void -dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nhwentries, - enum dma_data_direction direction) -{ - struct scatterlist *sg; - int i; - - BUG_ON(!valid_dma_direction(direction)); - WARN_ON(nhwentries == 0 || sglist[0].length == 0); - - for_each_sg(sglist, sg, nhwentries, i) { - BUG_ON(!sg_page(sg)); - - sg->dma_address = sg_phys(sg); - dma_sync_for_cpu(sg_virt(sg), sg->length, direction); - } -} - -static inline void -dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -{ - dma_sync_for_cpu(phys_to_virt(dma_handle), size, direction); -} - -static inline void -dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction direction) -{ - dma_sync_for_device(phys_to_virt(dma_handle), size, direction); -} - -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_for_cpu(phys_to_virt(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_for_device(phys_to_virt(dma_handle)+offset, size, - direction); -} - -static inline void -dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nelems, - enum dma_data_direction direction) -{ - int i; - struct scatterlist *sg; - - for_each_sg(sglist, sg, nelems, i) - dma_sync_for_cpu(sg_virt(sg), sg->length, direction); -} - -static inline void -dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, - int nelems, enum dma_data_direction direction) -{ - int i; - struct scatterlist *sg; - - for_each_sg(sglist, sg, nelems, i) - dma_sync_for_device(sg_virt(sg), sg->length, direction); -} - -static inline int -dma_mapping_error(struct device *dev, dma_addr_t dma_addr) +static inline struct dma_map_ops *get_dma_ops(struct device *dev) { - return 0; -} - -#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; + return &metag_dma_ops; } /* @@ -184,11 +18,4 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size, { } -/* drivers/base/dma-mapping.c */ -extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, - void *cpu_addr, dma_addr_t dma_addr, - size_t size); - -#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s) - #endif -- cgit v1.2.3