1/**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12#ifndef _ASM_LINUX_DMA_MAPPING_H 13#define _ASM_LINUX_DMA_MAPPING_H 14 15#include <linux/device.h> 16#include <linux/err.h> 17 18enum dma_data_direction { 19 DMA_BIDIRECTIONAL = 0, 20 DMA_TO_DEVICE = 1, 21 DMA_FROM_DEVICE = 2, 22 DMA_NONE = 3, 23}; 24 25#define DMA_64BIT_MASK 0xffffffffffffffffULL 26#define DMA_48BIT_MASK 0x0000ffffffffffffULL 27#define DMA_40BIT_MASK 0x000000ffffffffffULL 28#define DMA_39BIT_MASK 0x0000007fffffffffULL 29#define DMA_32BIT_MASK 0x00000000ffffffffULL 30#define DMA_31BIT_MASK 0x000000007fffffffULL 31#define DMA_30BIT_MASK 0x000000003fffffffULL 32#define DMA_29BIT_MASK 0x000000001fffffffULL 33#define DMA_28BIT_MASK 0x000000000fffffffULL 34#define DMA_24BIT_MASK 0x0000000000ffffffULL 35 36#include <asm/dma-mapping.h> 37 38#define dma_sync_single dma_sync_single_for_cpu 39#define dma_sync_sg dma_sync_sg_for_cpu 40 41#define DMA_MEMORY_MAP 0x01 42#define DMA_MEMORY_IO 0x02 43#define DMA_MEMORY_INCLUDES_CHILDREN 0x04 44#define DMA_MEMORY_EXCLUSIVE 0x08 45 46#ifndef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY 47#endif 48#endif 49