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 #include <asm/ipcbuf.h>
6 #include <asm/posix_types.h>
7 
8 /*
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * as published by the Free Software Foundation; either version
12  * 2 of the License, or (at your option) any later version.
13  */
14 
15 /*
16  * The shmid64_ds structure for PPC architecture.
17  *
18  * Note extra padding because this structure is passed back and forth
19  * between kernel and user space.
20  *
21  * Pad space is left for:
22  * - 2 miscellaneous 32-bit values
23  */
24 
25 struct shmid64_ds {
26 	struct ipc64_perm	shm_perm;	/* operation perms */
27 #ifdef __powerpc64__
28 	long		shm_atime;	/* last attach time */
29 	long		shm_dtime;	/* last detach time */
30 	long		shm_ctime;	/* last change time */
31 #else
32 	unsigned long		shm_atime_high;
33 	unsigned long		shm_atime;	/* last attach time */
34 	unsigned long		shm_dtime_high;
35 	unsigned long		shm_dtime;	/* last detach time */
36 	unsigned long		shm_ctime_high;
37 	unsigned long		shm_ctime;	/* last change time */
38 	unsigned long		__unused4;
39 #endif
40 	__kernel_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