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

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _PARISC_SHMBUF_H
   3 #define _PARISC_SHMBUF_H
   4
   5 #include <asm/bitsperlong.h>
   6 #include <asm/ipcbuf.h>
   7 #include <asm/posix_types.h>
   8
   9 /*
  10  * The shmid64_ds structure for parisc architecture.
  11  * Note extra padding because this structure is passed back and forth
  12  * between kernel and user space.
  13  *
  14  * Pad space is left for:
  15  * - 2 miscellaneous 32-bit values
  16  */
  17
  18 struct shmid64_ds {
  19         struct ipc64_perm       shm_perm;       /* operation perms */
  20 #if __BITS_PER_LONG == 64
  21         long                    shm_atime;      /* last attach time */
  22         long                    shm_dtime;      /* last detach time */
  23         long                    shm_ctime;      /* last change time */
  24 #else
  25         unsigned long           shm_atime_high;
  26         unsigned long           shm_atime;      /* last attach time */
  27         unsigned long           shm_dtime_high;
  28         unsigned long           shm_dtime;      /* last detach time */
  29         unsigned long           shm_ctime_high;
  30         unsigned long           shm_ctime;      /* last change time */
  31         unsigned int            __pad4;
  32 #endif
  33         __kernel_size_t         shm_segsz;      /* size of segment (bytes) */
  34         __kernel_pid_t          shm_cpid;       /* pid of creator */
  35         __kernel_pid_t          shm_lpid;       /* pid of last operator */
  36         unsigned long           shm_nattch;     /* no. of current attaches */
  37         unsigned long           __unused1;
  38         unsigned long           __unused2;
  39 };
  40
  41 struct shminfo64 {
  42         unsigned long   shmmax;
  43         unsigned long   shmmin;
  44         unsigned long   shmmni;
  45         unsigned long   shmseg;
  46         unsigned long   shmall;
  47         unsigned long   __unused1;
  48         unsigned long   __unused2;
  49         unsigned long   __unused3;
  50         unsigned long   __unused4;
  51 };
  52
  53 #endif /* _PARISC_SHMBUF_H */