Root/include/asm-generic/types.h

1#ifndef _ASM_GENERIC_TYPES_H
2#define _ASM_GENERIC_TYPES_H
3/*
4 * int-ll64 is used practically everywhere now,
5 * so use it as a reasonable default.
6 */
7#include <asm-generic/int-ll64.h>
8
9#ifndef __ASSEMBLY__
10
11typedef unsigned short umode_t;
12
13#endif /* __ASSEMBLY__ */
14
15/*
16 * These aren't exported outside the kernel to avoid name space clashes
17 */
18#ifdef __KERNEL__
19#ifndef __ASSEMBLY__
20/*
21 * DMA addresses may be very different from physical addresses
22 * and pointers. i386 and powerpc may have 64 bit DMA on 32 bit
23 * systems, while sparc64 uses 32 bit DMA addresses for 64 bit
24 * physical addresses.
25 * This default defines dma_addr_t to have the same size as
26 * phys_addr_t, which is the most common way.
27 * Do not define the dma64_addr_t type, which never really
28 * worked.
29 */
30#ifndef dma_addr_t
31#ifdef CONFIG_PHYS_ADDR_T_64BIT
32typedef u64 dma_addr_t;
33#else
34typedef u32 dma_addr_t;
35#endif /* CONFIG_PHYS_ADDR_T_64BIT */
36#endif /* dma_addr_t */
37
38#endif /* __ASSEMBLY__ */
39
40#endif /* __KERNEL__ */
41
42#endif /* _ASM_GENERIC_TYPES_H */
43

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