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Commit	Line	Data
a77ac49d MD	1	/*
	2	* SYS/USCHED.H
	3	*
	4	* Userland scheduler API
a77ac49d MD	5	*/
	6
	7	#ifndef _SYS_USCHED_H_
	8	#define _SYS_USCHED_H_
	9
cb7f4ab1 MD	10	#if defined(_KERNEL) \|\| defined(_KERNEL_STRUCTURES)
cb7f4ab1 MD	11
1bd40720 MD	12	#ifndef _SYS_TYPES_H_
	13	#include <sys/types.h>
	14	#endif
da82a65a	15	#ifndef _SYS_CPUMASK_H_
	16	#include <sys/cpumask.h>
	17	#endif
a77ac49d MD	18	#ifndef _SYS_QUEUE_H_
	19	#include <sys/queue.h>
	20	#endif
1bd40720 MD	21	#ifndef _SYS_SYSTIMER_H_
	22	#include <sys/systimer.h>
	23	#endif
a77ac49d	24
1b31454e DR	25	#define NAME_LENGTH 32
1b31454e DR	26
1bd40720	27	struct lwp;
a77ac49d MD	28	struct proc;
	29	struct globaldata;
	30
	31	struct usched {
	32	TAILQ_ENTRY(usched) entry;
	33	const char *name;
	34	const char *desc;
cb7f4ab1 MD	35	void (*usched_register)(void);
cb7f4ab1 MD	36	void (*usched_unregister)(void);
553ea3c8 SS	37	void (acquire_curproc)(struct lwp );
553ea3c8 SS	38	void (release_curproc)(struct lwp );
553ea3c8	39	void (setrunqueue)(struct lwp );
553ea3c8 SS	40	void (schedulerclock)(struct lwp , sysclock_t, sysclock_t);
	41	void (recalculate)(struct lwp );
	42	void (resetpriority)(struct lwp );
	43	void (heuristic_forking)(struct lwp , struct lwp *);
52cac9fb	44	void (heuristic_exiting)(struct lwp , struct proc *);
e28d8b15	45	void (uload_update)(struct lwp );
cb7f4ab1	46	void (setcpumask)(struct usched , cpumask_t);
c3149361	47	void (yield)(struct lwp );
d87af38c	48	void (changedcpu)(struct lwp );
352f5709 MD	49	};
	50
	51	union usched_data {
	52	/*
da82a65a	53	* BSD4 scheduler.
352f5709 MD	54	*/
	55	struct {
	56	short priority; /* lower is better */
52eedfb5	57	char unused01; /* (currently not used) */
352f5709	58	char rqindex;
52cac9fb	59	int batch; /* batch mode heuristic */
dcc99b62	60	int estcpu; /* dynamic priority modification */
52eedfb5 MD	61	u_short rqtype; /* protected copy of rtprio type */
52eedfb5 MD	62	u_short unused02;
352f5709	63	} bsd4;
e28d8b15 MD	64	struct {
e28d8b15 MD	65	short priority; /* lower is better */
08bb2a83	66	char forked; /* lock cpu during fork */
e28d8b15	67	char rqindex;
bc55d64f	68	short estfast; /* fast estcpu collapse mode */
d992c377	69	short uload; /* for delta uload adjustments */
e28d8b15 MD	70	int estcpu; /* dynamic priority modification */
	71	u_short rqtype; /* protected copy of rtprio type */
	72	u_short qcpu; /* which cpu are we enqueued on? */
e3e6be1f MD	73	u_short rrcount; /* reset when moved to runq tail */
	74	u_short unused01;
	75	u_short unused02;
	76	u_short unused03;
e28d8b15	77	} dfly;
352f5709	78
e3e6be1f	79	int pad[6]; /* PAD for future expansion */
a77ac49d MD	80	};
a77ac49d MD	81
cb7f4ab1 MD	82	/*
	83	* Flags for usched_ctl()
	84	*/
	85	#define USCH_ADD 0x00000001
	86	#define USCH_REM 0x00000010
	87
	88	#endif /* _KERNEL \|\| _KERNEL_STRUCTURES */
	89
a60ccb85 DX	90	#define USCHED_SET_SCHEDULER 0
	91	#define USCHED_SET_CPU 1
	92	#define USCHED_ADD_CPU 2
	93	#define USCHED_DEL_CPU 3
dcf3266e	94	#define USCHED_GET_CPU 4
91755bdd SZ	95	#define USCHED_GET_CPUMASK 5 /* since DragonFly 4.5 */
91755bdd SZ	96	#define USCHED_SET_CPUMASK 6 /* since DragonFly 4.7 */
a60ccb85	97
cb7f4ab1 MD	98	/*
	99	* Kernel variables and procedures, or user system calls.
	100	*/
	101	#ifdef _KERNEL
	102
a77ac49d	103	extern struct usched usched_bsd4;
e28d8b15	104	extern struct usched usched_dfly;
52eedfb5	105	extern struct usched usched_dummy;
b5516a55	106	void dfly_acquire_curproc(struct lwp *);
a5ae2446	107	extern cpumask_t usched_mastermask;
d6d39bc7	108	extern int sched_ticks; /* From sys/kern/kern_clock.c */
a77ac49d	109
cb7f4ab1 MD	110	int usched_ctl(struct usched *, int);
cb7f4ab1 MD	111	struct usched *usched_init(void);
de4d4cb0	112	void usched_schedulerclock(struct lwp *, sysclock_t, sysclock_t);
cb7f4ab1	113
702acf06 JT	114	#endif
	115
	116	#if !defined(_KERNEL) \|\| defined(_KERNEL_VIRTUAL)
cb7f4ab1	117
a60ccb85	118	int usched_set(pid_t, int, void *, int);
cb7f4ab1 MD	119
	120	#endif
	121
a77ac49d MD	122	#endif
a77ac49d MD	123