diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/mn10300/include/asm/dma-mapping.h')
-rw-r--r-- | ANDROID_3.4.5/arch/mn10300/include/asm/dma-mapping.h | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/ANDROID_3.4.5/arch/mn10300/include/asm/dma-mapping.h b/ANDROID_3.4.5/arch/mn10300/include/asm/dma-mapping.h deleted file mode 100644 index c1be4397..00000000 --- a/ANDROID_3.4.5/arch/mn10300/include/asm/dma-mapping.h +++ /dev/null @@ -1,171 +0,0 @@ -/* DMA mapping routines for the MN10300 arch - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_DMA_MAPPING_H -#define _ASM_DMA_MAPPING_H - -#include <linux/mm.h> -#include <linux/scatterlist.h> - -#include <asm/cache.h> -#include <asm/io.h> - -/* - * See Documentation/DMA-API.txt for the description of how the - * following DMA API should work. - */ - -extern void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, int flag); - -extern void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle); - -#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 -dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(direction == DMA_NONE); - mn10300_dcache_flush_inv(); - return virt_to_bus(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(direction == DMA_NONE); -} - -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); - } - - mn10300_dcache_flush_inv(); - return nents; -} - -static inline -void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, - enum dma_data_direction direction) -{ - BUG_ON(!valid_dma_direction(direction)); -} - -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(direction == DMA_NONE); - return page_to_bus(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(direction == DMA_NONE); -} - -static inline -void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction 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) -{ - mn10300_dcache_flush_inv(); -} - -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) -{ -} - -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) -{ - mn10300_dcache_flush_inv(); -} - - -static inline -void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, - int nelems, enum dma_data_direction direction) -{ -} - -static inline -void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, - int nelems, enum dma_data_direction direction) -{ - mn10300_dcache_flush_inv(); -} - -static inline -int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return 0; -} - -static inline -int dma_supported(struct device *dev, u64 mask) -{ - /* - * we fall back to GFP_DMA when the mask isn't all 1s, so we can't - * guarantee allocations that must be within a tighter range than - * GFP_DMA - */ - if (mask < 0x00ffffff) - return 0; - return 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; -} - -static inline -void dma_cache_sync(void *vaddr, size_t size, - enum dma_data_direction direction) -{ - mn10300_dcache_flush_inv(); -} - -#endif |