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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #ifndef _SYS_CYCLIC_H
     27 #define	_SYS_CYCLIC_H
     28 
     29 #ifdef	__cplusplus
     30 extern "C" {
     31 #endif
     32 
     33 #ifndef _ASM
     34 #include <sys/time.h>
     35 #include <sys/cpuvar.h>
     36 #include <sys/cpupart.h>
     37 #endif /* !_ASM */
     38 
     39 #define	CY_LOW_LEVEL		0
     40 #define	CY_LOCK_LEVEL		1
     41 #define	CY_HIGH_LEVEL		2
     42 #define	CY_SOFT_LEVELS		2
     43 #define	CY_LEVELS		3
     44 
     45 #ifndef _ASM
     46 
     47 typedef uintptr_t cyclic_id_t;
     48 typedef int cyc_index_t;
     49 typedef int cyc_cookie_t;
     50 typedef uint16_t cyc_level_t;
     51 typedef void (*cyc_func_t)(void *);
     52 typedef void *cyb_arg_t;
     53 
     54 #define	CYCLIC_NONE		((cyclic_id_t)0)
     55 
     56 typedef struct cyc_handler {
     57 	cyc_func_t cyh_func;
     58 	void *cyh_arg;
     59 	cyc_level_t cyh_level;
     60 } cyc_handler_t;
     61 
     62 typedef struct cyc_time {
     63 	hrtime_t cyt_when;
     64 	hrtime_t cyt_interval;
     65 } cyc_time_t;
     66 
     67 typedef struct cyc_omni_handler {
     68 	void (*cyo_online)(void *, cpu_t *, cyc_handler_t *, cyc_time_t *);
     69 	void (*cyo_offline)(void *, cpu_t *, void *);
     70 	void *cyo_arg;
     71 } cyc_omni_handler_t;
     72 
     73 #define	CY_INFINITY	INT64_MAX
     74 
     75 #ifdef _KERNEL
     76 
     77 extern cyclic_id_t cyclic_add(cyc_handler_t *, cyc_time_t *);
     78 extern cyclic_id_t cyclic_add_omni(cyc_omni_handler_t *);
     79 extern void cyclic_remove(cyclic_id_t);
     80 extern void cyclic_bind(cyclic_id_t, cpu_t *, cpupart_t *);
     81 extern int cyclic_reprogram(cyclic_id_t, hrtime_t);
     82 extern hrtime_t cyclic_getres();
     83 
     84 extern int cyclic_offline(cpu_t *cpu);
     85 extern void cyclic_online(cpu_t *cpu);
     86 extern int cyclic_juggle(cpu_t *cpu);
     87 extern void cyclic_move_in(cpu_t *);
     88 extern int cyclic_move_out(cpu_t *);
     89 extern void cyclic_suspend();
     90 extern void cyclic_resume();
     91 
     92 extern void cyclic_fire(cpu_t *cpu);
     93 extern void cyclic_softint(cpu_t *cpu, cyc_level_t level);
     94 
     95 #endif /* _KERNEL */
     96 
     97 #endif /* !_ASM */
     98 
     99 #ifdef	__cplusplus
    100 }
    101 #endif
    102 
    103 #endif /* _SYS_CYCLIC_H */
    104