xref: /linux/arch/parisc/include/uapi/asm/shmbuf.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 #ifndef _PARISC_SHMBUF_H
2 #define _PARISC_SHMBUF_H
3 
4 #include <asm/bitsperlong.h>
5 
6 /*
7  * The shmid64_ds structure for parisc architecture.
8  * Note extra padding because this structure is passed back and forth
9  * between kernel and user space.
10  *
11  * Pad space is left for:
12  * - 64-bit time_t to solve y2038 problem
13  * - 2 miscellaneous 32-bit values
14  */
15 
16 struct shmid64_ds {
17 	struct ipc64_perm	shm_perm;	/* operation perms */
18 #if __BITS_PER_LONG != 64
19 	unsigned int		__pad1;
20 #endif
21 	__kernel_time_t		shm_atime;	/* last attach time */
22 #if __BITS_PER_LONG != 64
23 	unsigned int		__pad2;
24 #endif
25 	__kernel_time_t		shm_dtime;	/* last detach time */
26 #if __BITS_PER_LONG != 64
27 	unsigned int		__pad3;
28 #endif
29 	__kernel_time_t		shm_ctime;	/* last change time */
30 #if __BITS_PER_LONG != 64
31 	unsigned int		__pad4;
32 #endif
33 	size_t			shm_segsz;	/* size of segment (bytes) */
34 	__kernel_pid_t		shm_cpid;	/* pid of creator */
35 	__kernel_pid_t		shm_lpid;	/* pid of last operator */
36 	unsigned int		shm_nattch;	/* no. of current attaches */
37 	unsigned int		__unused1;
38 	unsigned int		__unused2;
39 };
40 
41 struct shminfo64 {
42 	unsigned long	shmmax;
43 	unsigned long	shmmin;
44 	unsigned long	shmmni;
45 	unsigned long	shmseg;
46 	unsigned long	shmall;
47 	unsigned long	__unused1;
48 	unsigned long	__unused2;
49 	unsigned long	__unused3;
50 	unsigned long	__unused4;
51 };
52 
53 #endif /* _PARISC_SHMBUF_H */
54