arch/powerpc/include/uapi/asm/shmbuf.h

   1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
   2 #ifndef _ASM_POWERPC_SHMBUF_H
   3 #define _ASM_POWERPC_SHMBUF_H
   4
   5 /*
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  */
  11
  12 /*
  13  * The shmid64_ds structure for PPC architecture.
  14  *
  15  * Note extra padding because this structure is passed back and forth
  16  * between kernel and user space.
  17  *
  18  * Pad space is left for:
  19  * - 2 miscellaneous 32-bit values
  20  */
  21
  22 struct shmid64_ds {
  23         struct ipc64_perm       shm_perm;       /* operation perms */
  24 #ifdef __powerpc64__
  25         long            shm_atime;      /* last attach time */
  26         long            shm_dtime;      /* last detach time */
  27         long            shm_ctime;      /* last change time */
  28 #else
  29         unsigned long           shm_atime_high;
  30         unsigned long           shm_atime;      /* last attach time */
  31         unsigned long           shm_dtime_high;
  32         unsigned long           shm_dtime;      /* last detach time */
  33         unsigned long           shm_ctime_high;
  34         unsigned long           shm_ctime;      /* last change time */
  35         unsigned long           __unused4;
  36 #endif
  37         size_t                  shm_segsz;      /* size of segment (bytes) */
  38         __kernel_pid_t          shm_cpid;       /* pid of creator */
  39         __kernel_pid_t          shm_lpid;       /* pid of last operator */
  40         unsigned long           shm_nattch;     /* no. of current attaches */
  41         unsigned long           __unused5;
  42         unsigned long           __unused6;
  43 };
  44
  45 struct shminfo64 {
  46         unsigned long   shmmax;
  47         unsigned long   shmmin;
  48         unsigned long   shmmni;
  49         unsigned long   shmseg;
  50         unsigned long   shmall;
  51         unsigned long   __unused1;
  52         unsigned long   __unused2;
  53         unsigned long   __unused3;
  54         unsigned long   __unused4;
  55 };
  56
  57 #endif  /* _ASM_POWERPC_SHMBUF_H */