1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef __ASM_X86_SHMBUF_H
3#define __ASM_X86_SHMBUF_H
4
5#if !defined(__x86_64__) || !defined(__ILP32__)
6#include <asm-generic/shmbuf.h>
7#else
8
9#include <asm/ipcbuf.h>
10#include <asm/posix_types.h>
11
12/*
13 * The shmid64_ds structure for x86 architecture with x32 ABI.
14 *
15 * On x86-32 and x86-64 we can just use the generic definition, but
16 * x32 uses the same binary layout as x86_64, which is different
17 * from other 32-bit architectures.
18 */
19
20struct shmid64_ds {
21	struct ipc64_perm	shm_perm;	/* operation perms */
22	__kernel_size_t		shm_segsz;	/* size of segment (bytes) */
23	__kernel_long_t		shm_atime;	/* last attach time */
24	__kernel_long_t		shm_dtime;	/* last detach time */
25	__kernel_long_t		shm_ctime;	/* last change time */
26	__kernel_pid_t		shm_cpid;	/* pid of creator */
27	__kernel_pid_t		shm_lpid;	/* pid of last operator */
28	__kernel_ulong_t	shm_nattch;	/* no. of current attaches */
29	__kernel_ulong_t	__unused4;
30	__kernel_ulong_t	__unused5;
31};
32
33struct shminfo64 {
34	__kernel_ulong_t	shmmax;
35	__kernel_ulong_t	shmmin;
36	__kernel_ulong_t	shmmni;
37	__kernel_ulong_t	shmseg;
38	__kernel_ulong_t	shmall;
39	__kernel_ulong_t	__unused1;
40	__kernel_ulong_t	__unused2;
41	__kernel_ulong_t	__unused3;
42	__kernel_ulong_t	__unused4;
43};
44
45#endif
46
47#endif /* __ASM_X86_SHMBUF_H */
48