diff options
Diffstat (limited to 'arch/sparc/include/asm/shmbuf.h')
-rw-r--r-- | arch/sparc/include/asm/shmbuf.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/shmbuf.h b/arch/sparc/include/asm/shmbuf.h new file mode 100644 index 000000000000..83a16055363f --- /dev/null +++ b/arch/sparc/include/asm/shmbuf.h | |||
@@ -0,0 +1,50 @@ | |||
1 | #ifndef _SPARC_SHMBUF_H | ||
2 | #define _SPARC_SHMBUF_H | ||
3 | |||
4 | /* | ||
5 | * The shmid64_ds structure for sparc architecture. | ||
6 | * Note extra padding because this structure is passed back and forth | ||
7 | * between kernel and user space. | ||
8 | * | ||
9 | * Pad space is left for: | ||
10 | * - 64-bit time_t to solve y2038 problem | ||
11 | * - 2 miscellaneous 32-bit values | ||
12 | */ | ||
13 | |||
14 | #if defined(__sparc__) && defined(__arch64__) | ||
15 | # define PADDING(x) | ||
16 | #else | ||
17 | # define PADDING(x) unsigned int x; | ||
18 | #endif | ||
19 | |||
20 | struct shmid64_ds { | ||
21 | struct ipc64_perm shm_perm; /* operation perms */ | ||
22 | PADDING(__pad1) | ||
23 | __kernel_time_t shm_atime; /* last attach time */ | ||
24 | PADDING(__pad2) | ||
25 | __kernel_time_t shm_dtime; /* last detach time */ | ||
26 | PADDING(__pad3) | ||
27 | __kernel_time_t shm_ctime; /* last change time */ | ||
28 | size_t shm_segsz; /* size of segment (bytes) */ | ||
29 | __kernel_pid_t shm_cpid; /* pid of creator */ | ||
30 | __kernel_pid_t shm_lpid; /* pid of last operator */ | ||
31 | unsigned long shm_nattch; /* no. of current attaches */ | ||
32 | unsigned long __unused1; | ||
33 | unsigned long __unused2; | ||
34 | }; | ||
35 | |||
36 | struct shminfo64 { | ||
37 | unsigned long shmmax; | ||
38 | unsigned long shmmin; | ||
39 | unsigned long shmmni; | ||
40 | unsigned long shmseg; | ||
41 | unsigned long shmall; | ||
42 | unsigned long __unused1; | ||
43 | unsigned long __unused2; | ||
44 | unsigned long __unused3; | ||
45 | unsigned long __unused4; | ||
46 | }; | ||
47 | |||
48 | #undef PADDING | ||
49 | |||
50 | #endif /* _SPARC_SHMBUF_H */ | ||