1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _PARISC_SHMBUF_H 3 #define _PARISC_SHMBUF_H 4 5 #include <asm/bitsperlong.h> 6 7 /* 8 * The shmid64_ds structure for parisc architecture. 9 * Note extra padding because this structure is passed back and forth 10 * between kernel and user space. 11 * 12 * Pad space is left for: 13 * - 2 miscellaneous 32-bit values 14 */ 15 16 struct shmid64_ds { 17 struct ipc64_perm shm_perm; /* operation perms */ 18 #if __BITS_PER_LONG == 64 19 long shm_atime; /* last attach time */ 20 long shm_dtime; /* last detach time */ 21 long shm_ctime; /* last change time */ 22 #else 23 unsigned long shm_atime_high; 24 unsigned long shm_atime; /* last attach time */ 25 unsigned long shm_dtime_high; 26 unsigned long shm_dtime; /* last detach time */ 27 unsigned long shm_ctime_high; 28 unsigned long shm_ctime; /* last change time */ 29 unsigned int __pad4; 30 #endif 31 __kernel_size_t shm_segsz; /* size of segment (bytes) */ 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 __unused1; 36 unsigned long __unused2; 37 }; 38 39 struct shminfo64 { 40 unsigned long shmmax; 41 unsigned long shmmin; 42 unsigned long shmmni; 43 unsigned long shmseg; 44 unsigned long shmall; 45 unsigned long __unused1; 46 unsigned long __unused2; 47 unsigned long __unused3; 48 unsigned long __unused4; 49 }; 50 51 #endif /* _PARISC_SHMBUF_H */ 52