diff options
Diffstat (limited to 'arch/mips/include/asm/mach-generic/dma-coherence.h')
-rw-r--r-- | arch/mips/include/asm/mach-generic/dma-coherence.h | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h deleted file mode 100644 index 8ad7a40ca786..000000000000 --- a/arch/mips/include/asm/mach-generic/dma-coherence.h +++ /dev/null @@ -1,73 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org> - * - */ -#ifndef __ASM_MACH_GENERIC_DMA_COHERENCE_H -#define __ASM_MACH_GENERIC_DMA_COHERENCE_H - -struct device; - -static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, - size_t size) -{ - return virt_to_phys(addr); -} - -static inline dma_addr_t plat_map_dma_mem_page(struct device *dev, - struct page *page) -{ - return page_to_phys(page); -} - -static inline unsigned long plat_dma_addr_to_phys(struct device *dev, - dma_addr_t dma_addr) -{ - return dma_addr; -} - -static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr, - size_t size, enum dma_data_direction direction) -{ -} - -static inline int plat_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 < DMA_BIT_MASK(24)) - return 0; - - return 1; -} - -static inline int plat_device_is_coherent(struct device *dev) -{ -#ifdef CONFIG_DMA_PERDEV_COHERENT - return dev->archdata.dma_coherent; -#else - switch (coherentio) { - default: - case IO_COHERENCE_DEFAULT: - return hw_coherentio; - case IO_COHERENCE_ENABLED: - return 1; - case IO_COHERENCE_DISABLED: - return 0; - } -#endif -} - -#ifndef plat_post_dma_flush -static inline void plat_post_dma_flush(struct device *dev) -{ -} -#endif - -#endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */ |