kernel/sched/rt_dptbl/rt_dptbl.c

   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, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
  28 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T   */
  29 /*        All Rights Reserved   */
  30
  31 #pragma ident   "%Z%%M% %I%     %E% SMI"
  32
  33 #include <sys/proc.h>
  34 #include <sys/priocntl.h>
  35 #include <sys/class.h>
  36 #include <sys/disp.h>
  37 #include <sys/rt.h>
  38 #include <sys/rtpriocntl.h>
  39 #include <sys/modctl.h>
  40
  41 /*
  42  * The purpose of this file is to allow a user to make their own
  43  * rt_dptbl. The contents of this file should be included in the
  44  * rt_dptbl(4) man page with proper instructions for making
  45  * and replacing the RT_DPTBL.kmod in modules/sched. This was the
  46  * only way to provide functionality equivalent to the mkboot/cunix
  47  * method in SVr4 without having the utilities mkboot/cunix in
  48  * SunOS/Svr4.
  49  * It is recommended that the system calls be used to change the time
  50  * quantums instead of re-building the module.
  51  */
  52
  53 static struct modlmisc modlmisc = {
  54         &mod_miscops, "realtime dispatch table"
  55 };
  56
  57 static struct modlinkage modlinkage = {
  58         MODREV_1, &modlmisc, 0
  59 };
  60
  61 int
  62 _init()
  63 {
  64         return (mod_install(&modlinkage));
  65 }
  66
  67 int
  68 _info(struct modinfo *modinfop)
  69 {
  70         return (mod_info(&modlinkage, modinfop));
  71 }
  72
  73 #define RTGPPRIO0       100     /* Global priority for RT priority 0 */
  74
  75 rtdpent_t       config_rt_dptbl[] = {
  76
  77 /*      prilevel    Time quantum */
  78
  79         RTGPPRIO0,      100,
  80         RTGPPRIO0+1,    100,
  81         RTGPPRIO0+2,    100,
  82         RTGPPRIO0+3,    100,
  83         RTGPPRIO0+4,    100,
  84         RTGPPRIO0+5,    100,
  85         RTGPPRIO0+6,    100,
  86         RTGPPRIO0+7,    100,
  87         RTGPPRIO0+8,    100,
  88         RTGPPRIO0+9,    100,
  89         RTGPPRIO0+10,   80,
  90         RTGPPRIO0+11,   80,
  91         RTGPPRIO0+12,   80,
  92         RTGPPRIO0+13,   80,
  93         RTGPPRIO0+14,   80,
  94         RTGPPRIO0+15,   80,
  95         RTGPPRIO0+16,   80,
  96         RTGPPRIO0+17,   80,
  97         RTGPPRIO0+18,   80,
  98         RTGPPRIO0+19,   80,
  99         RTGPPRIO0+20,   60,
 100         RTGPPRIO0+21,   60,
 101         RTGPPRIO0+22,   60,
 102         RTGPPRIO0+23,   60,
 103         RTGPPRIO0+24,   60,
 104         RTGPPRIO0+25,   60,
 105         RTGPPRIO0+26,   60,
 106         RTGPPRIO0+27,   60,
 107         RTGPPRIO0+28,   60,
 108         RTGPPRIO0+29,   60,
 109         RTGPPRIO0+30,   40,
 110         RTGPPRIO0+31,   40,
 111         RTGPPRIO0+32,   40,
 112         RTGPPRIO0+33,   40,
 113         RTGPPRIO0+34,   40,
 114         RTGPPRIO0+35,   40,
 115         RTGPPRIO0+36,   40,
 116         RTGPPRIO0+37,   40,
 117         RTGPPRIO0+38,   40,
 118         RTGPPRIO0+39,   40,
 119         RTGPPRIO0+40,   20,
 120         RTGPPRIO0+41,   20,
 121         RTGPPRIO0+42,   20,
 122         RTGPPRIO0+43,   20,
 123         RTGPPRIO0+44,   20,
 124         RTGPPRIO0+45,   20,
 125         RTGPPRIO0+46,   20,
 126         RTGPPRIO0+47,   20,
 127         RTGPPRIO0+48,   20,
 128         RTGPPRIO0+49,   20,
 129         RTGPPRIO0+50,   10,
 130         RTGPPRIO0+51,   10,
 131         RTGPPRIO0+52,   10,
 132         RTGPPRIO0+53,   10,
 133         RTGPPRIO0+54,   10,
 134         RTGPPRIO0+55,   10,
 135         RTGPPRIO0+56,   10,
 136         RTGPPRIO0+57,   10,
 137         RTGPPRIO0+58,   10,
 138         RTGPPRIO0+59,   10
 139 };
 140
 141 /*
 142  * Return the address of config_rt_dptbl
 143  */
 144 rtdpent_t *
 145 rt_getdptbl()
 146 {
 147         return (config_rt_dptbl);
 148 }