LXR linux/arch/s390/include/asm/types.h

   1/*
   2 *  include/asm-s390/types.h
   3 *
   4 *  S390 version
   5 *
   6 *  Derived from "include/asm-i386/types.h"
   7 */
   8
   9#ifndef _S390_TYPES_H
  10#define _S390_TYPES_H
  11
  12#include <asm-generic/int-ll64.h>
  13
  14#ifndef __ASSEMBLY__
  15
  16typedef unsigned short umode_t;
  17
  18/* A address type so that arithmetic can be done on it & it can be upgraded to
  19   64 bit when necessary 
  20*/
  21typedef unsigned long addr_t; 
  22typedef __signed__ long saddr_t;
  23
  24#endif /* __ASSEMBLY__ */
  25
  26/*
  27 * These aren't exported outside the kernel to avoid name space clashes
  28 */
  29#ifdef __KERNEL__
  30
  31#ifndef __ASSEMBLY__
  32
  33typedef u64 dma64_addr_t;
  34#ifdef __s390x__
  35/* DMA addresses come in 32-bit and 64-bit flavours. */
  36typedef u64 dma_addr_t;
  37#else
  38typedef u32 dma_addr_t;
  39#endif
  40
  41#ifndef __s390x__
  42typedef union {
  43        unsigned long long pair;
  44        struct {
  45                unsigned long even;
  46                unsigned long odd;
  47        } subreg;
  48} register_pair;
  49
  50#endif /* ! __s390x__   */
  51#endif /* __ASSEMBLY__  */
  52#endif /* __KERNEL__    */
  53#endif /* _S390_TYPES_H */
  54