include/asm-nios2nommu/shmbuf.h

   1 #ifndef _NIOS_SHMBUF_H
   2 #define _NIOS_SHMBUF_H
   3
   4 /*--------------------------------------------------------------------
   5  *
   6  * include/asm-nios2nommu/shmbuf.h
   7  *
   8  * Derived from m68knommu
   9  *
  10  * Copyright (C) 2004   Microtronix Datacom Ltd
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  *
  23  * Jan/20/2004          dgt         NiosII
  24  *
  25  ---------------------------------------------------------------------*/
  26
  27
  28 /* Note extra padding because this structure is passed back and forth
  29  * between kernel and user space.
  30  *
  31  * Pad space is left for:
  32  * - 64-bit time_t to solve y2038 problem
  33  * - 2 miscellaneous 32-bit values
  34  */
  35
  36 struct shmid64_ds {
  37         struct ipc64_perm       shm_perm;       /* operation perms */
  38         size_t                  shm_segsz;      /* size of segment (bytes) */
  39         __kernel_time_t         shm_atime;      /* last attach time */
  40         unsigned long           __unused1;
  41         __kernel_time_t         shm_dtime;      /* last detach time */
  42         unsigned long           __unused2;
  43         __kernel_time_t         shm_ctime;      /* last change time */
  44         unsigned long           __unused3;
  45         __kernel_pid_t          shm_cpid;       /* pid of creator */
  46         __kernel_pid_t          shm_lpid;       /* pid of last operator */
  47         unsigned long           shm_nattch;     /* no. of current attaches */
  48         unsigned long           __unused4;
  49         unsigned long           __unused5;
  50 };
  51
  52 struct shminfo64 {
  53         unsigned long   shmmax;
  54         unsigned long   shmmin;
  55         unsigned long   shmmni;
  56         unsigned long   shmseg;
  57         unsigned long   shmall;
  58         unsigned long   __unused1;
  59         unsigned long   __unused2;
  60         unsigned long   __unused3;
  61         unsigned long   __unused4;
  62 };
  63
  64 #endif /* _NIOS_SHMBUF_H */