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      1 /*	$NetBSD: cyclic.h,v 1.6 2019/07/23 07:46:22 hannken Exp $	*/
      2 
      3 /*
      4  * CDDL HEADER START
      5  *
      6  * The contents of this file are subject to the terms of the
      7  * Common Development and Distribution License, Version 1.0 only
      8  * (the "License").  You may not use this file except in compliance
      9  * with the License.
     10  *
     11  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     12  * or http://www.opensolaris.org/os/licensing.
     13  * See the License for the specific language governing permissions
     14  * and limitations under the License.
     15  *
     16  * When distributing Covered Code, include this CDDL HEADER in each
     17  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     18  * If applicable, add the following below this CDDL HEADER, with the
     19  * fields enclosed by brackets "[]" replaced with your own identifying
     20  * information: Portions Copyright [yyyy] [name of copyright owner]
     21  *
     22  * CDDL HEADER END
     23  *
     24  * $FreeBSD: head/sys/cddl/compat/opensolaris/sys/cyclic.h 179202 2008-05-22 08:33:24Z jb $
     25  *
     26  */
     27 /*
     28  * Copyright (c) 1999-2001 by Sun Microsystems, Inc.
     29  * All rights reserved.
     30  */
     31 
     32 #ifndef _COMPAT_OPENSOLARIS_SYS_CYCLIC_H_
     33 #define _COMPAT_OPENSOLARIS_SYS_CYCLIC_H_
     34 
     35 #ifndef _KERNEL
     36 typedef	void	cpu_t;
     37 #endif
     38 
     39 
     40 #ifndef _ASM
     41 #include <sys/time.h>
     42 #include <sys/cpuvar.h>
     43 #ifndef __NetBSD__
     44 #include <sys/cpupart.h>
     45 #endif
     46 #endif /* !_ASM */
     47 
     48 #define	CY_LOW_LEVEL		0
     49 #define	CY_LOCK_LEVEL		1
     50 #define	CY_HIGH_LEVEL		2
     51 #define	CY_SOFT_LEVELS		2
     52 #define	CY_LEVELS		3
     53 
     54 #ifndef _ASM
     55 
     56 typedef uintptr_t cyclic_id_t;
     57 typedef int cyc_index_t;
     58 typedef uint16_t cyc_level_t;
     59 typedef void (*cyc_func_t)(void *);
     60 typedef void *cyb_arg_t;
     61 
     62 #define	CYCLIC_NONE		((cyclic_id_t)0)
     63 
     64 typedef struct cyc_handler {
     65 	cyc_func_t cyh_func;
     66 	void *cyh_arg;
     67 	cyc_level_t cyh_level;
     68 } cyc_handler_t;
     69 
     70 typedef struct cyc_time {
     71 	hrtime_t cyt_when;
     72 	hrtime_t cyt_interval;
     73 } cyc_time_t;
     74 
     75 typedef struct cyc_omni_handler {
     76 	void (*cyo_online)(void *, cpu_t *, cyc_handler_t *, cyc_time_t *);
     77 	void (*cyo_offline)(void *, cpu_t *, void *);
     78 	void *cyo_arg;
     79 } cyc_omni_handler_t;
     80 
     81 #define	CY_INFINITY	INT64_MAX
     82 
     83 #ifdef _KERNEL
     84 
     85 cyclic_id_t cyclic_add(cyc_handler_t *, cyc_time_t *);
     86 cyclic_id_t cyclic_add_omni(cyc_omni_handler_t *);
     87 void cyclic_remove(cyclic_id_t);
     88 int cyclic_reprogram(cyclic_id_t, hrtime_t);
     89 
     90 #endif /* _KERNEL */
     91 
     92 #endif /* !_ASM */
     93 
     94 #endif
     95