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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, 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/ts.h>
     38 #include <sys/tspriocntl.h>
     39 #include <sys/modctl.h>
     40 
     41 /*
     42  * The purpose of this file is to allow a user to make their own
     43  * ts_dptbl. The contents of this file should be included in the
     44  * ts_dptbl(4) man page with proper instructions for making
     45  * and replacing the TS_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  * There are also other tunable time sharing parameters in here also
     52  * that used to be in param.c
     53  */
     54 
     55 extern int ts_dispatch_extended;
     56 
     57 static struct modlmisc modlmisc = {
     58 	&mod_miscops, "Time sharing dispatch table"
     59 };
     60 
     61 static struct modlinkage modlinkage = {
     62 	MODREV_1, &modlmisc, 0
     63 };
     64 
     65 int
     66 _init()
     67 {
     68 	return (mod_install(&modlinkage));
     69 }
     70 
     71 int
     72 _info(struct modinfo *modinfop)
     73 {
     74 	return (mod_info(&modlinkage, modinfop));
     75 }
     76 
     77 #define	TSGPUP0	0	/* Global priority for TS user priority 0 */
     78 #define	TSGPKP0	60	/* Global priority for TS kernel priority 0 */
     79 
     80 /*
     81  * array of global priorities used by ts procs sleeping or
     82  * running in kernel mode after sleep
     83  */
     84 
     85 pri_t config_ts_kmdpris[] = {
     86 	TSGPKP0,    TSGPKP0+1,  TSGPKP0+2,  TSGPKP0+3,
     87 	TSGPKP0+4,  TSGPKP0+5,  TSGPKP0+6,  TSGPKP0+7,
     88 	TSGPKP0+8,  TSGPKP0+9,  TSGPKP0+10, TSGPKP0+11,
     89 	TSGPKP0+12, TSGPKP0+13, TSGPKP0+14, TSGPKP0+15,
     90 	TSGPKP0+16, TSGPKP0+17, TSGPKP0+18, TSGPKP0+19,
     91 	TSGPKP0+20, TSGPKP0+21, TSGPKP0+22, TSGPKP0+23,
     92 	TSGPKP0+24, TSGPKP0+25, TSGPKP0+26, TSGPKP0+27,
     93 	TSGPKP0+28, TSGPKP0+29, TSGPKP0+30, TSGPKP0+31,
     94 	TSGPKP0+32, TSGPKP0+33, TSGPKP0+34, TSGPKP0+35,
     95 	TSGPKP0+36, TSGPKP0+37, TSGPKP0+38, TSGPKP0+39
     96 };
     97 
     98 tsdpent_t	config_ts_dptbl[] = {
     99 
    100 /*	glbpri		qntm	tqexp	slprt	mxwt	lwt */
    101 
    102 	TSGPUP0+0,	20,	 0,	50,	    0,	50,
    103 	TSGPUP0+1,	20,	 0,	50,	    0,	50,
    104 	TSGPUP0+2,	20,	 0,	50,	    0,	50,
    105 	TSGPUP0+3,	20,	 0,	50,	    0,	50,
    106 	TSGPUP0+4,	20,	 0,	50,	    0,	50,
    107 	TSGPUP0+5,	20,	 0,	50,	    0,	50,
    108 	TSGPUP0+6,	20,	 0,	50,	    0,	50,
    109 	TSGPUP0+7,	20,	 0,	50,	    0,	50,
    110 	TSGPUP0+8,	20,	 0,	50,	    0,	50,
    111 	TSGPUP0+9,	20,	 0,	50,	    0,	50,
    112 	TSGPUP0+10,	16,	 0,	51,	    0,	51,
    113 	TSGPUP0+11,	16,	 1,	51,	    0,	51,
    114 	TSGPUP0+12,	16,	 2,	51,	    0,	51,
    115 	TSGPUP0+13,	16,	 3,	51,	    0,	51,
    116 	TSGPUP0+14,	16,	 4,	51,	    0,	51,
    117 	TSGPUP0+15,	16,	 5,	51,	    0,	51,
    118 	TSGPUP0+16,	16,	 6,	51,	    0,	51,
    119 	TSGPUP0+17,	16,	 7,	51,	    0,	51,
    120 	TSGPUP0+18,	16,	 8,	51,	    0,	51,
    121 	TSGPUP0+19,	16,	 9,	51,	    0,	51,
    122 	TSGPUP0+20,	12,	10,	52,	    0,	52,
    123 	TSGPUP0+21,	12,	11,	52,	    0,	52,
    124 	TSGPUP0+22,	12,	12,	52,	    0,	52,
    125 	TSGPUP0+23,	12,	13,	52,	    0,	52,
    126 	TSGPUP0+24,	12,	14,	52,	    0,	52,
    127 	TSGPUP0+25,	12,	15,	52,	    0,	52,
    128 	TSGPUP0+26,	12,	16,	52,	    0,	52,
    129 	TSGPUP0+27,	12,	17,	52,	    0,	52,
    130 	TSGPUP0+28,	12,	18,	52,	    0,	52,
    131 	TSGPUP0+29,	12,	19,	52,	    0,	52,
    132 	TSGPUP0+30,	 8,	20,	53,	    0,	53,
    133 	TSGPUP0+31,	 8,	21,	53,	    0,	53,
    134 	TSGPUP0+32,	 8,	22,	53,	    0,	53,
    135 	TSGPUP0+33,	 8,	23,	53,	    0,	53,
    136 	TSGPUP0+34,	 8,	24,	53,	    0,	53,
    137 	TSGPUP0+35,	 8,	25,	54,	    0,	54,
    138 	TSGPUP0+36,	 8,	26,	54,	    0,	54,
    139 	TSGPUP0+37,	 8,	27,	54,	    0,	54,
    140 	TSGPUP0+38,	 8,	28,	54,	    0,	54,
    141 	TSGPUP0+39,	 8,	29,	54,	    0,	54,
    142 	TSGPUP0+40,	 4,	30,	55,	    0,	55,
    143 	TSGPUP0+41,	 4,	31,	55,	    0,	55,
    144 	TSGPUP0+42,	 4,	32,	55,	    0,	55,
    145 	TSGPUP0+43,	 4,	33,	55,	    0,	55,
    146 	TSGPUP0+44,	 4,	34,	55,	    0,	55,
    147 	TSGPUP0+45,	 4,	35,	56,	    0,	56,
    148 	TSGPUP0+46,	 4,	36,	57,	    0,	57,
    149 	TSGPUP0+47,	 4,	37,	58,	    0,	58,
    150 	TSGPUP0+48,	 4,	38,	58,	    0,	58,
    151 	TSGPUP0+49,	 4,	39,	58,	    0,	59,
    152 	TSGPUP0+50,	 4,	40,	58,	    0,	59,
    153 	TSGPUP0+51,	 4,	41,	58,	    0,	59,
    154 	TSGPUP0+52,	 4,	42,	58,	    0,	59,
    155 	TSGPUP0+53,	 4,	43,	58,	    0,	59,
    156 	TSGPUP0+54,	 4,	44,	58,	    0,	59,
    157 	TSGPUP0+55,	 4,	45,	58,	    0,	59,
    158 	TSGPUP0+56,	 4,	46,	58,	    0,	59,
    159 	TSGPUP0+57,	 4,	47,	58,	    0,	59,
    160 	TSGPUP0+58,	 4,	48,	58,	    0,	59,
    161 	TSGPUP0+59,	 2,	49,	59,	32000,	59
    162 };
    163 
    164 /*
    165  * config_ts_dptbl_server[] is an alternate dispatch table that may
    166  * deliver better performance on large server configurations.
    167  * This table must be the same size as the default table, config_ts_dptbl.
    168  */
    169 tsdpent_t	config_ts_dptbl_server[] = {
    170 
    171 /*	glbpri		qntm	tqexp	slprt	mxwt	lwt */
    172 
    173 	TSGPUP0+0,	40,	 0,	 1,	    2,	40,
    174 	TSGPUP0+1,	38,	 0,	 2,	    2,	40,
    175 	TSGPUP0+2,	38,	 1,	 3,	    2,	40,
    176 	TSGPUP0+3,	38,	 1,	 4,	    2,	40,
    177 	TSGPUP0+4,	38,	 2,	 5,	    2,	40,
    178 	TSGPUP0+5,	38,	 2,	 6,	    2,	40,
    179 	TSGPUP0+6,	38,	 3,	 7,	    2,	40,
    180 	TSGPUP0+7,	38,	 3,	 8,	    2,	40,
    181 	TSGPUP0+8,	38,	 4,	 9,	    2,	40,
    182 	TSGPUP0+9,	38,	 4,	10,	    2,	40,
    183 	TSGPUP0+10,	38,	 5,	11,	    2,	40,
    184 	TSGPUP0+11,	38,	 5,	12,	    2,	40,
    185 	TSGPUP0+12,	38,	 6,	13,	    2,	40,
    186 	TSGPUP0+13,	38,	 6,	14,	    2,	40,
    187 	TSGPUP0+14,	38,	 7,	15,	    2,	40,
    188 	TSGPUP0+15,	38,	 7,	16,	    2,	40,
    189 	TSGPUP0+16,	38,	 8,	17,	    2,	40,
    190 	TSGPUP0+17,	38,	 8,	18,	    2,	40,
    191 	TSGPUP0+18,	38,	 9,	19,	    2,	40,
    192 	TSGPUP0+19,	38,	 9,	20,	    2,	40,
    193 	TSGPUP0+20,	36,	10,	21,	    2,	40,
    194 	TSGPUP0+21,	36,	11,	22,	    2,	40,
    195 	TSGPUP0+22,	36,	12,	23,	    2,	40,
    196 	TSGPUP0+23,	36,	13,	24,	    2,	40,
    197 	TSGPUP0+24,	36,	14,	25,	    2,	40,
    198 	TSGPUP0+25,	36,	15,	26,	    2,	40,
    199 	TSGPUP0+26,	36,	16,	27,	    2,	40,
    200 	TSGPUP0+27,	36,	17,	28,	    2,	40,
    201 	TSGPUP0+28,	36,	18,	29,	    2,	40,
    202 	TSGPUP0+29,	36,	19,	30,	    2,	40,
    203 	TSGPUP0+30,	36,	20,	31,	    2,	40,
    204 	TSGPUP0+31,	36,	21,	32,	    2,	40,
    205 	TSGPUP0+32,	36,	22,	33,	    2,	40,
    206 	TSGPUP0+33,	36,	23,	34,	    2,	40,
    207 	TSGPUP0+34,	36,	24,	35,	    2,	40,
    208 	TSGPUP0+35,	36,	25,	36,	    2,	40,
    209 	TSGPUP0+36,	36,	26,	37,	    2,	40,
    210 	TSGPUP0+37,	36,	27,	38,	    2,	40,
    211 	TSGPUP0+38,	36,	28,	39,	    2,	40,
    212 	TSGPUP0+39,	36,	29,	40,	    2,	40,
    213 	TSGPUP0+40,	36,	30,	41,	    2,	41,
    214 	TSGPUP0+41,	34,	31,	42,	    2,	42,
    215 	TSGPUP0+42,	34,	32,	43,	    2,	43,
    216 	TSGPUP0+43,	34,	33,	44,	    2,	44,
    217 	TSGPUP0+44,	34,	34,	45,	    2,	45,
    218 	TSGPUP0+45,	34,	35,	46,	    2,	46,
    219 	TSGPUP0+46,	34,	36,	47,	    2,	47,
    220 	TSGPUP0+47,	34,	37,	48,	    2,	48,
    221 	TSGPUP0+48,	34,	38,	49,	    2,	49,
    222 	TSGPUP0+49,	34,	39,	50,	    2,	50,
    223 	TSGPUP0+50,	34,	40,	51,	    2,	51,
    224 	TSGPUP0+51,	34,	41,	52,	    2,	52,
    225 	TSGPUP0+52,	34,	42,	53,	    2,	53,
    226 	TSGPUP0+53,	34,	43,	54,	    2,	54,
    227 	TSGPUP0+54,	34,	44,	55,	    2,	55,
    228 	TSGPUP0+55,	34,	45,	56,	    2,	56,
    229 	TSGPUP0+56,	34,	46,	57,	    2,	57,
    230 	TSGPUP0+57,	34,	47,	58,	    2,	58,
    231 	TSGPUP0+58,	34,	48,	59,	    2,	59,
    232 	TSGPUP0+59,	34,	49,	59,	    2,	59
    233 };
    234 
    235 
    236 
    237 pri_t config_ts_maxumdpri = sizeof (config_ts_dptbl) / sizeof (tsdpent_t) - 1;
    238 
    239 /*
    240  * Return the address of config_ts_dptbl
    241  */
    242 tsdpent_t *
    243 ts_getdptbl()
    244 {
    245 	/*
    246 	 * If ts_dispatch_extended is -1, set it to 0x0
    247 	 * to choose the default TS table.
    248 	 */
    249 	if (ts_dispatch_extended == -1)
    250 		ts_dispatch_extended = 0;
    251 
    252 	/*
    253 	 * If ts_dispatch_extended is non-zero, use the
    254 	 * "large server style" TS dispatch table.
    255 	 */
    256 	if (ts_dispatch_extended)
    257 		return (config_ts_dptbl_server);
    258 	else
    259 		return (config_ts_dptbl);
    260 }
    261 
    262 /*
    263  * Return the address of config_ts_kmdpris
    264  */
    265 pri_t *
    266 ts_getkmdpris()
    267 {
    268 	return (config_ts_kmdpris);
    269 }
    270 
    271 /*
    272  * Return the address of ts_maxumdpri
    273  */
    274 pri_t
    275 ts_getmaxumdpri()
    276 {
    277 	/*
    278 	 * The config_ts_dptbl_server table must be the same size as
    279 	 * the config_ts_dptbl table.
    280 	 */
    281 	/*LINTED*/
    282 	ASSERT(sizeof (config_ts_dptbl) == sizeof (config_ts_dptbl_server));
    283 	return (config_ts_maxumdpri);
    284 }
    285