1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _SPARC_SHMBUF_H 3 #define _SPARC_SHMBUF_H 4 5 /* 6 * The shmid64_ds structure for sparc architecture. 7 * Note extra padding because this structure is passed back and forth 8 * between kernel and user space. 9 * 10 * Pad space is left for: 11 * - 2 miscellaneous 32-bit values 12 */ 13 14 struct shmid64_ds { 15 struct ipc64_perm shm_perm; /* operation perms */ 16 #if defined(__sparc__) && defined(__arch64__) 17 __kernel_time_t shm_atime; /* last attach time */ 18 __kernel_time_t shm_dtime; /* last detach time */ 19 __kernel_time_t shm_ctime; /* last change time */ 20 #else 21 unsigned long shm_atime_high; 22 unsigned long shm_atime; /* last attach time */ 23 unsigned long shm_dtime_high; 24 unsigned long shm_dtime; /* last detach time */ 25 unsigned long shm_ctime_high; 26 unsigned long shm_ctime; /* last change time */ 27 #endif 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 #endif /* _SPARC_SHMBUF_H */ 49