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 * - 64-bit time_t to solve y2038 problem 20 * - 2 miscellaneous 32-bit values 21 */ 22 23 struct shmid64_ds { 24 struct ipc64_perm shm_perm; /* operation perms */ 25 #ifndef __powerpc64__ 26 unsigned long __unused1; 27 #endif 28 __kernel_time_t shm_atime; /* last attach time */ 29 #ifndef __powerpc64__ 30 unsigned long __unused2; 31 #endif 32 __kernel_time_t shm_dtime; /* last detach time */ 33 #ifndef __powerpc64__ 34 unsigned long __unused3; 35 #endif 36 __kernel_time_t shm_ctime; /* last change time */ 37 #ifndef __powerpc64__ 38 unsigned long __unused4; 39 #endif 40 size_t shm_segsz; /* size of segment (bytes) */ 41 __kernel_pid_t shm_cpid; /* pid of creator */ 42 __kernel_pid_t shm_lpid; /* pid of last operator */ 43 unsigned long shm_nattch; /* no. of current attaches */ 44 unsigned long __unused5; 45 unsigned long __unused6; 46 }; 47 48 struct shminfo64 { 49 unsigned long shmmax; 50 unsigned long shmmin; 51 unsigned long shmmni; 52 unsigned long shmseg; 53 unsigned long shmall; 54 unsigned long __unused1; 55 unsigned long __unused2; 56 unsigned long __unused3; 57 unsigned long __unused4; 58 }; 59 60 #endif /* _ASM_POWERPC_SHMBUF_H */ 61