diff options
Diffstat (limited to 'libc/kernel/common/linux/dma-mapping.h')
-rw-r--r-- | libc/kernel/common/linux/dma-mapping.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/libc/kernel/common/linux/dma-mapping.h b/libc/kernel/common/linux/dma-mapping.h new file mode 100644 index 0000000..6432259 --- /dev/null +++ b/libc/kernel/common/linux/dma-mapping.h @@ -0,0 +1,48 @@ +/**************************************************************************** + **************************************************************************** + *** + *** This header was automatically generated from a Linux kernel header + *** of the same name, to make information necessary for userspace to + *** call into the kernel available to libc. It contains only constants, + *** structures, and macros generated from the original header, and thus, + *** contains no copyrightable information. + *** + **************************************************************************** + ****************************************************************************/ +#ifndef _ASM_LINUX_DMA_MAPPING_H +#define _ASM_LINUX_DMA_MAPPING_H + +#include <linux/device.h> +#include <linux/err.h> + +enum dma_data_direction { + DMA_BIDIRECTIONAL = 0, + DMA_TO_DEVICE = 1, + DMA_FROM_DEVICE = 2, + DMA_NONE = 3, +}; + +#define DMA_64BIT_MASK 0xffffffffffffffffULL +#define DMA_48BIT_MASK 0x0000ffffffffffffULL +#define DMA_40BIT_MASK 0x000000ffffffffffULL +#define DMA_39BIT_MASK 0x0000007fffffffffULL +#define DMA_32BIT_MASK 0x00000000ffffffffULL +#define DMA_31BIT_MASK 0x000000007fffffffULL +#define DMA_30BIT_MASK 0x000000003fffffffULL +#define DMA_29BIT_MASK 0x000000001fffffffULL +#define DMA_28BIT_MASK 0x000000000fffffffULL +#define DMA_24BIT_MASK 0x0000000000ffffffULL + +#include <asm/dma-mapping.h> + +#define dma_sync_single dma_sync_single_for_cpu +#define dma_sync_sg dma_sync_sg_for_cpu + +#define DMA_MEMORY_MAP 0x01 +#define DMA_MEMORY_IO 0x02 +#define DMA_MEMORY_INCLUDES_CHILDREN 0x04 +#define DMA_MEMORY_EXCLUSIVE 0x08 + +#ifndef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY +#endif +#endif |