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Diffstat (limited to 'arch/openrisc/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/openrisc/include/asm/dma-mapping.h | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h deleted file mode 100644 index fab8628e1b6e..000000000000 --- a/arch/openrisc/include/asm/dma-mapping.h +++ /dev/null @@ -1,110 +0,0 @@ -/* - * OpenRISC Linux - * - * Linux architectural port borrowing liberally from similar works of - * others. All original copyrights apply as per the original source - * declaration. - * - * OpenRISC implementation: - * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef __ASM_OPENRISC_DMA_MAPPING_H -#define __ASM_OPENRISC_DMA_MAPPING_H - -/* - * See Documentation/DMA-API-HOWTO.txt and - * Documentation/DMA-API.txt for documentation. - */ - -#include <linux/dma-debug.h> -#include <asm-generic/dma-coherent.h> -#include <linux/kmemcheck.h> -#include <linux/dma-mapping.h> - -#define DMA_ERROR_CODE (~(dma_addr_t)0x0) - -extern struct dma_map_ops or1k_dma_map_ops; - -static inline struct dma_map_ops *get_dma_ops(struct device *dev) -{ - return &or1k_dma_map_ops; -} - -#include <asm-generic/dma-mapping-common.h> - -#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) - -static inline void *dma_alloc_attrs(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, - struct dma_attrs *attrs) -{ - struct dma_map_ops *ops = get_dma_ops(dev); - void *memory; - - memory = ops->alloc(dev, size, dma_handle, gfp, attrs); - - debug_dma_alloc_coherent(dev, size, *dma_handle, memory); - - return memory; -} - -#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) - -static inline void dma_free_attrs(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle, - struct dma_attrs *attrs) -{ - struct dma_map_ops *ops = get_dma_ops(dev); - - debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); - - ops->free(dev, size, cpu_addr, dma_handle, attrs); -} - -static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) -{ - struct dma_attrs attrs; - - dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs); - - return dma_alloc_attrs(dev, size, dma_handle, gfp, &attrs); -} - -static inline void dma_free_noncoherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) -{ - struct dma_attrs attrs; - - dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs); - - dma_free_attrs(dev, size, cpu_addr, dma_handle, &attrs); -} - -static inline int dma_supported(struct device *dev, u64 dma_mask) -{ - /* Support 32 bit DMA mask exclusively */ - return dma_mask == DMA_BIT_MASK(32); -} - -static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return 0; -} - -static inline int dma_set_mask(struct device *dev, u64 dma_mask) -{ - if (!dev->dma_mask || !dma_supported(dev, dma_mask)) - return -EIO; - - *dev->dma_mask = dma_mask; - - return 0; -} -#endif /* __ASM_OPENRISC_DMA_MAPPING_H */ |
