diff options
Diffstat (limited to 'arch/avr32/include/asm/dma-mapping.h')
-rw-r--r-- | arch/avr32/include/asm/dma-mapping.h | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h deleted file mode 100644 index 1cde8275f4..0000000000 --- a/arch/avr32/include/asm/dma-mapping.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright (C) 2006 Atmel Corporation - * - * SPDX-License-Identifier: GPL-2.0+ - */ -#ifndef __ASM_AVR32_DMA_MAPPING_H -#define __ASM_AVR32_DMA_MAPPING_H - -#include <asm/io.h> -#include <asm/arch/cacheflush.h> - -enum dma_data_direction { - DMA_BIDIRECTIONAL = 0, - DMA_TO_DEVICE = 1, - DMA_FROM_DEVICE = 2, -}; - -static inline void *dma_alloc_coherent(size_t len, unsigned long *handle) -{ - *handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len); - return (void *)*handle; -} - -static inline unsigned long dma_map_single(volatile void *vaddr, size_t len, - enum dma_data_direction dir) -{ - extern void __bad_dma_data_direction(void); - - switch (dir) { - case DMA_BIDIRECTIONAL: - flush_dcache_range((unsigned long)vaddr, - (unsigned long)vaddr + len); - break; - case DMA_TO_DEVICE: - dcache_clean_range(vaddr, len); - break; - case DMA_FROM_DEVICE: - invalidate_dcache_range((unsigned long)vaddr, - (unsigned long)vaddr + len); - break; - default: - /* This will cause a linker error */ - __bad_dma_data_direction(); - } - - return virt_to_phys(vaddr); -} - -static inline void dma_unmap_single(volatile void *vaddr, size_t len, - unsigned long paddr) -{ - -} - -#endif /* __ASM_AVR32_DMA_MAPPING_H */ |