Root/target/linux/ubicom32/files/arch/ubicom32/include/asm/shmbuf.h

1/*
2 * arch/ubicom32/include/asm/shmbuf.h
3 * The shmid64_ds structure for the Ubicom32 architecture.
4 *
5 * (C) Copyright 2009, Ubicom, Inc.
6 *
7 * This file is part of the Ubicom32 Linux Kernel Port.
8 *
9 * The Ubicom32 Linux Kernel Port is free software: you can redistribute
10 * it and/or modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation, either version 2 of the
12 * License, or (at your option) any later version.
13 *
14 * The Ubicom32 Linux Kernel Port is distributed in the hope that it
15 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
16 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
17 * the GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with the Ubicom32 Linux Kernel Port. If not,
21 * see <http://www.gnu.org/licenses/>.
22 *
23 * Ubicom32 implementation derived from (with many thanks):
24 * arch/m68knommu
25 * arch/blackfin
26 * arch/parisc
27 */
28#ifndef _ASM_UBICOM32_SHMBUF_H
29#define _ASM_UBICOM32_SHMBUF_H
30
31/*
32 * The shmid64_ds structure for m68k architecture.
33 * Note extra padding because this structure is passed back and forth
34 * between kernel and user space.
35 *
36 * Pad space is left for:
37 * - 64-bit time_t to solve y2038 problem
38 * - 2 miscellaneous 32-bit values
39 */
40
41struct shmid64_ds {
42    struct ipc64_perm shm_perm; /* operation perms */
43    size_t shm_segsz; /* size of segment (bytes) */
44    __kernel_time_t shm_atime; /* last attach time */
45    unsigned long __unused1;
46    __kernel_time_t shm_dtime; /* last detach time */
47    unsigned long __unused2;
48    __kernel_time_t shm_ctime; /* last change time */
49    unsigned long __unused3;
50    __kernel_pid_t shm_cpid; /* pid of creator */
51    __kernel_pid_t shm_lpid; /* pid of last operator */
52    unsigned long shm_nattch; /* no. of current attaches */
53    unsigned long __unused4;
54    unsigned long __unused5;
55};
56
57struct shminfo64 {
58    unsigned long shmmax;
59    unsigned long shmmin;
60    unsigned long shmmni;
61    unsigned long shmseg;
62    unsigned long shmall;
63    unsigned long __unused1;
64    unsigned long __unused2;
65    unsigned long __unused3;
66    unsigned long __unused4;
67};
68
69#endif /* _ASM_UBICOM32_SHMBUF_H */
70

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