LXR linux/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