target/linux/ubicom32/files/arch/ubicom32/include/asm/shmbuf.h

   1 /*
   2  * arch/ubicom32/include/asm/shmbuf.h
   3  *   The shmid64_ds structure for the Ubicom32 architecture.
   4  *
   5  * (C) Copyright 2009, Ubicom, Inc.
   6  *
   7  * This file is part of the Ubicom32 Linux Kernel Port.
   8  *
   9  * The Ubicom32 Linux Kernel Port is free software: you can redistribute
  10  * it and/or modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation, either version 2 of the
  12  * License, or (at your option) any later version.
  13  *
  14  * The Ubicom32 Linux Kernel Port is distributed in the hope that it
  15  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  16  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  17  * the GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with the Ubicom32 Linux Kernel Port.  If not,
  21  * see <http://www.gnu.org/licenses/>.
  22  *
  23  * Ubicom32 implementation derived from (with many thanks):
  24  *   arch/m68knommu
  25  *   arch/blackfin
  26  *   arch/parisc
  27  */
  28 #ifndef _ASM_UBICOM32_SHMBUF_H
  29 #define _ASM_UBICOM32_SHMBUF_H
  30
  31 /*
  32  * The shmid64_ds structure for m68k architecture.
  33  * Note extra padding because this structure is passed back and forth
  34  * between kernel and user space.
  35  *
  36  * Pad space is left for:
  37  * - 64-bit time_t to solve y2038 problem
  38  * - 2 miscellaneous 32-bit values
  39  */
  40
  41 struct shmid64_ds {
  42         struct ipc64_perm       shm_perm;       /* operation perms */
  43         size_t                  shm_segsz;      /* size of segment (bytes) */
  44         __kernel_time_t         shm_atime;      /* last attach time */
  45         unsigned long           __unused1;
  46         __kernel_time_t         shm_dtime;      /* last detach time */
  47         unsigned long           __unused2;
  48         __kernel_time_t         shm_ctime;      /* last change time */
  49         unsigned long           __unused3;
  50         __kernel_pid_t          shm_cpid;       /* pid of creator */
  51         __kernel_pid_t          shm_lpid;       /* pid of last operator */
  52         unsigned long           shm_nattch;     /* no. of current attaches */
  53         unsigned long           __unused4;
  54         unsigned long           __unused5;
  55 };
  56
  57 struct shminfo64 {
  58         unsigned long   shmmax;
  59         unsigned long   shmmin;
  60         unsigned long   shmmni;
  61         unsigned long   shmseg;
  62         unsigned long   shmall;
  63         unsigned long   __unused1;
  64         unsigned long   __unused2;
  65         unsigned long   __unused3;
  66         unsigned long   __unused4;
  67 };
  68
  69 #endif /* _ASM_UBICOM32_SHMBUF_H */