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 }