1b46271ecSElizabeth Figura /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2b46271ecSElizabeth Figura /* 3b46271ecSElizabeth Figura * Kernel support for NT synchronization primitive emulation 4b46271ecSElizabeth Figura * 5b46271ecSElizabeth Figura * Copyright (C) 2021-2022 Elizabeth Figura <[email protected]> 6b46271ecSElizabeth Figura */ 7b46271ecSElizabeth Figura 8b46271ecSElizabeth Figura #ifndef __LINUX_NTSYNC_H 9b46271ecSElizabeth Figura #define __LINUX_NTSYNC_H 10b46271ecSElizabeth Figura 11b46271ecSElizabeth Figura #include <linux/types.h> 12b46271ecSElizabeth Figura 13b46271ecSElizabeth Figura struct ntsync_sem_args { 14b46271ecSElizabeth Figura __u32 count; 15b46271ecSElizabeth Figura __u32 max; 16b46271ecSElizabeth Figura }; 17b46271ecSElizabeth Figura 185bc2479aSElizabeth Figura struct ntsync_mutex_args { 195bc2479aSElizabeth Figura __u32 owner; 205bc2479aSElizabeth Figura __u32 count; 215bc2479aSElizabeth Figura }; 225bc2479aSElizabeth Figura 23b4a7b5feSElizabeth Figura #define NTSYNC_WAIT_REALTIME 0x1 24b4a7b5feSElizabeth Figura 25b4a7b5feSElizabeth Figura struct ntsync_wait_args { 26b4a7b5feSElizabeth Figura __u64 timeout; 27b4a7b5feSElizabeth Figura __u64 objs; 28b4a7b5feSElizabeth Figura __u32 count; 29b4a7b5feSElizabeth Figura __u32 index; 30b4a7b5feSElizabeth Figura __u32 flags; 315bc2479aSElizabeth Figura __u32 owner; 325bc2479aSElizabeth Figura __u32 pad[2]; 33b4a7b5feSElizabeth Figura }; 34b4a7b5feSElizabeth Figura 35b4a7b5feSElizabeth Figura #define NTSYNC_MAX_WAIT_COUNT 64 36b4a7b5feSElizabeth Figura 37d75abf2fSElizabeth Figura #define NTSYNC_IOC_CREATE_SEM _IOW ('N', 0x80, struct ntsync_sem_args) 38b4a7b5feSElizabeth Figura #define NTSYNC_IOC_WAIT_ANY _IOWR('N', 0x82, struct ntsync_wait_args) 39cdbb9978SElizabeth Figura #define NTSYNC_IOC_WAIT_ALL _IOWR('N', 0x83, struct ntsync_wait_args) 405bc2479aSElizabeth Figura #define NTSYNC_IOC_CREATE_MUTEX _IOW ('N', 0x84, struct ntsync_mutex_args) 41b46271ecSElizabeth Figura 425ec43d6bSElizabeth Figura #define NTSYNC_IOC_SEM_RELEASE _IOWR('N', 0x81, __u32) 4331ca7bb8SElizabeth Figura #define NTSYNC_IOC_MUTEX_UNLOCK _IOWR('N', 0x85, struct ntsync_mutex_args) 44*ecc2ee36SElizabeth Figura #define NTSYNC_IOC_MUTEX_KILL _IOW ('N', 0x86, __u32) 45dc806bd4SElizabeth Figura 46b46271ecSElizabeth Figura #endif 47