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