1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _SPARC_SHMBUF_H !! 2 #ifndef _ASM_SHMBUF_H
3 #define _SPARC_SHMBUF_H !! 3 #define _ASM_SHMBUF_H
4 4
5 #include <asm/ipcbuf.h> 5 #include <asm/ipcbuf.h>
6 #include <asm/posix_types.h> 6 #include <asm/posix_types.h>
7 7
8 /* !! 8 /*
9 * The shmid64_ds structure for sparc architec !! 9 * The shmid64_ds structure for the MIPS architecture.
10 * Note extra padding because this structure i 10 * Note extra padding because this structure is passed back and forth
11 * between kernel and user space. 11 * between kernel and user space.
12 * 12 *
13 * Pad space is left for: !! 13 * As MIPS was lacking proper padding after shm_?time, we use 48 bits
14 * - 2 miscellaneous 32-bit values !! 14 * of the padding at the end to store a few additional bits of the time.
>> 15 * libc implementations need to take care to convert this into a proper
>> 16 * data structure when moving to 64-bit time_t.
15 */ 17 */
16 18
>> 19 #ifdef __mips64
17 struct shmid64_ds { 20 struct shmid64_ds {
18 struct ipc64_perm shm_perm; 21 struct ipc64_perm shm_perm; /* operation perms */
19 #if defined(__sparc__) && defined(__arch64__) !! 22 __kernel_size_t shm_segsz; /* size of segment (bytes) */
20 long shm_atime; 23 long shm_atime; /* last attach time */
21 long shm_dtime; 24 long shm_dtime; /* last detach time */
22 long shm_ctime; 25 long 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 unsigned long shm_nattch; /* no. of current attaches */
>> 29 unsigned long __unused1;
>> 30 unsigned long __unused2;
>> 31 };
23 #else 32 #else
24 unsigned long shm_atime_high !! 33 struct shmid64_ds {
>> 34 struct ipc64_perm shm_perm; /* operation perms */
>> 35 __kernel_size_t shm_segsz; /* size of segment (bytes) */
25 unsigned long shm_atime; 36 unsigned long shm_atime; /* last attach time */
26 unsigned long shm_dtime_high <<
27 unsigned long shm_dtime; 37 unsigned long shm_dtime; /* last detach time */
28 unsigned long shm_ctime_high <<
29 unsigned long shm_ctime; 38 unsigned long shm_ctime; /* last change time */
30 #endif <<
31 __kernel_size_t shm_segsz; <<
32 __kernel_pid_t shm_cpid; 39 __kernel_pid_t shm_cpid; /* pid of creator */
33 __kernel_pid_t shm_lpid; 40 __kernel_pid_t shm_lpid; /* pid of last operator */
34 unsigned long shm_nattch; 41 unsigned long shm_nattch; /* no. of current attaches */
35 unsigned long __unused1; !! 42 unsigned short shm_atime_high;
36 unsigned long __unused2; !! 43 unsigned short shm_dtime_high;
>> 44 unsigned short shm_ctime_high;
>> 45 unsigned short __unused1;
37 }; 46 };
>> 47 #endif
38 48
39 struct shminfo64 { 49 struct shminfo64 {
40 unsigned long shmmax; 50 unsigned long shmmax;
41 unsigned long shmmin; 51 unsigned long shmmin;
42 unsigned long shmmni; 52 unsigned long shmmni;
43 unsigned long shmseg; 53 unsigned long shmseg;
44 unsigned long shmall; 54 unsigned long shmall;
45 unsigned long __unused1; 55 unsigned long __unused1;
46 unsigned long __unused2; 56 unsigned long __unused2;
47 unsigned long __unused3; 57 unsigned long __unused3;
48 unsigned long __unused4; 58 unsigned long __unused4;
49 }; 59 };
50 60
51 #endif /* _SPARC_SHMBUF_H */ !! 61 #endif /* _ASM_SHMBUF_H */
52 62
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