xref: /openbmc/linux/arch/x86/include/uapi/asm/shmbuf.h (revision 4a3233c1)
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 
20 struct 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 
33 struct 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