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 18 enum 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