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Chris Zankel9a8fd552005-06-23 22:01:26 -07001/*
2 * include/asm-xtensa/shmbuf.h
3 *
4 * The shmid64_ds structure for Xtensa architecture.
5 * Note extra padding because this structure is passed back and forth
6 * between kernel and user space.
7 *
8 * Pad space is left for:
9 * - 64-bit time_t to solve y2038 problem
10 * - 2 miscellaneous 32-bit values
11 *
12 * This file is subject to the terms and conditions of the GNU General Public
13 * License. See the file "COPYING" in the main directory of this archive
14 * for more details.
15 *
16 * Copyright (C) 2001 - 2005 Tensilica Inc.
17 */
18
19#ifndef _XTENSA_SHMBUF_H
20#define _XTENSA_SHMBUF_H
21
Chris Zankelfc4fb2a2006-12-10 02:18:52 -080022#if defined (__XTENSA_EL__)
Chris Zankel9a8fd552005-06-23 22:01:26 -070023struct shmid64_ds {
24 struct ipc64_perm shm_perm; /* operation perms */
25 size_t shm_segsz; /* size of segment (bytes) */
26 __kernel_time_t shm_atime; /* last attach time */
27 unsigned long __unused1;
28 __kernel_time_t shm_dtime; /* last detach time */
29 unsigned long __unused2;
30 __kernel_time_t shm_ctime; /* last change time */
31 unsigned long __unused3;
32 __kernel_pid_t shm_cpid; /* pid of creator */
33 __kernel_pid_t shm_lpid; /* pid of last operator */
34 unsigned long shm_nattch; /* no. of current attaches */
35 unsigned long __unused4;
36 unsigned long __unused5;
37};
Chris Zankelfc4fb2a2006-12-10 02:18:52 -080038#elif defined (__XTENSA_EB__)
39struct shmid64_ds {
40 struct ipc64_perm shm_perm; /* operation perms */
41 size_t shm_segsz; /* size of segment (bytes) */
42 __kernel_time_t shm_atime; /* last attach time */
43 unsigned long __unused1;
44 __kernel_time_t shm_dtime; /* last detach time */
45 unsigned long __unused2;
46 __kernel_time_t shm_ctime; /* last change time */
47 unsigned long __unused3;
48 __kernel_pid_t shm_cpid; /* pid of creator */
49 __kernel_pid_t shm_lpid; /* pid of last operator */
50 unsigned long shm_nattch; /* no. of current attaches */
51 unsigned long __unused4;
52 unsigned long __unused5;
53};
54#else
55# error endian order not defined
56#endif
57
Chris Zankel9a8fd552005-06-23 22:01:26 -070058
59struct shminfo64 {
60 unsigned long shmmax;
61 unsigned long shmmin;
62 unsigned long shmmni;
63 unsigned long shmseg;
64 unsigned long shmall;
65 unsigned long __unused1;
66 unsigned long __unused2;
67 unsigned long __unused3;
68 unsigned long __unused4;
69};
70
71#endif /* _XTENSA_SHMBUF_H */