1 /* $OpenBSD: sched.h,v 1.5 2023/03/21 09:44:35 jsg Exp $ */ 2 /* 3 * Copyright (c) 2013, 2014, 2015 Mark Kettenis 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #ifndef _LINUX_SCHED_H 19 #define _LINUX_SCHED_H 20 21 #include <sys/param.h> 22 #include <sys/systm.h> 23 #include <sys/kernel.h> 24 #include <sys/stdint.h> 25 #include <sys/mutex.h> 26 #include <linux/hrtimer.h> 27 #include <linux/sem.h> 28 29 #define TASK_NORMAL 1 30 #define TASK_UNINTERRUPTIBLE 0 31 #define TASK_INTERRUPTIBLE PCATCH 32 #define TASK_RUNNING -1 33 34 #define MAX_SCHEDULE_TIMEOUT (INT32_MAX) 35 36 #define TASK_COMM_LEN (MAXCOMLEN + 1) 37 38 #define cond_resched() sched_pause(yield) 39 #define drm_need_resched() \ 40 (curcpu()->ci_schedstate.spc_schedflags & SPCF_SHOULDYIELD) 41 42 static inline int 43 cond_resched_lock(struct mutex *mtxp) 44 { 45 if (drm_need_resched() == 0) 46 return 0; 47 48 mtx_leave(mtxp); 49 cond_resched(); 50 mtx_enter(mtxp); 51 52 return 1; 53 } 54 55 void set_current_state(int); 56 void __set_current_state(int); 57 void schedule(void); 58 long schedule_timeout(long); 59 long schedule_timeout_uninterruptible(long); 60 61 #define io_schedule_timeout(x) schedule_timeout(x) 62 63 struct proc; 64 int wake_up_process(struct proc *p); 65 66 #endif 67