/* 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 */
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