/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * include/asm-xtensa/shmbuf.h
 *
 * The shmid64_ds structure for Xtensa architecture.
 * Note extra padding because this structure is passed back and forth
 * between kernel and user space, but the padding is on the wrong
 * side for big-endian xtensa, for historic reasons.
 *
 * Pad space is left for:
 * - 2 miscellaneous 32-bit values
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2001 - 2005 Tensilica Inc.
 */

#ifndef _XTENSA_SHMBUF_H
#define _XTENSA_SHMBUF_H

#include <asm/ipcbuf.h>
#include <asm/posix_types.h>

struct shmid64_ds {
        struct ipc64_perm       shm_perm;       /* operation perms */
        __kernel_size_t         shm_segsz;      /* size of segment (bytes) */
        unsigned long           shm_atime;      /* last attach time */
        unsigned long           shm_atime_high;
        unsigned long           shm_dtime;      /* last detach time */
        unsigned long           shm_dtime_high;
        unsigned long           shm_ctime;      /* last change time */
        unsigned long           shm_ctime_high;
        __kernel_pid_t          shm_cpid;       /* pid of creator */
        __kernel_pid_t          shm_lpid;       /* pid of last operator */
        unsigned long           shm_nattch;     /* no. of current attaches */
        unsigned long           __unused4;
        unsigned long           __unused5;
};

struct shminfo64 {
        unsigned long   shmmax;
        unsigned long   shmmin;
        unsigned long   shmmni;
        unsigned long   shmseg;
        unsigned long   shmall;
        unsigned long   __unused1;
        unsigned long   __unused2;
        unsigned long   __unused3;
        unsigned long   __unused4;
};

#endif  /* _XTENSA_SHMBUF_H */