est.c revision 158446
1231200Smm/*- 2231200Smm * Copyright (c) 2004 Colin Percival 3231200Smm * Copyright (c) 2005 Nate Lawson 4231200Smm * All rights reserved. 5231200Smm * 6231200Smm * Redistribution and use in source and binary forms, with or without 7231200Smm * modification, are permitted providing that the following conditions 8231200Smm * are met: 9231200Smm * 1. Redistributions of source code must retain the above copyright 10231200Smm * notice, this list of conditions and the following disclaimer. 11231200Smm * 2. Redistributions in binary form must reproduce the above copyright 12231200Smm * notice, this list of conditions and the following disclaimer in the 13231200Smm * documentation and/or other materials provided with the distribution. 14231200Smm * 15231200Smm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR``AS IS'' AND ANY EXPRESS OR 16231200Smm * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17231200Smm * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18231200Smm * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 19231200Smm * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20231200Smm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21231200Smm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22231200Smm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23231200Smm * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 24231200Smm * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25231200Smm * POSSIBILITY OF SUCH DAMAGE. 26231200Smm */ 27231200Smm 28231200Smm#include <sys/cdefs.h> 29231200Smm__FBSDID("$FreeBSD: head/sys/i386/cpufreq/est.c 158446 2006-05-11 17:35:44Z njl $"); 30231200Smm 31231200Smm#include <sys/param.h> 32231200Smm#include <sys/bus.h> 33231200Smm#include <sys/cpu.h> 34231200Smm#include <sys/kernel.h> 35231200Smm#include <sys/malloc.h> 36231200Smm#include <sys/module.h> 37231200Smm#include <sys/smp.h> 38231200Smm#include <sys/systm.h> 39231200Smm 40231200Smm#include "cpufreq_if.h" 41231200Smm#include <machine/md_var.h> 42231200Smm 43231200Smm#include <contrib/dev/acpica/acpi.h> 44231200Smm#include <dev/acpica/acpivar.h> 45231200Smm#include "acpi_if.h" 46231200Smm 47231200Smm/* Status/control registers (from the IA-32 System Programming Guide). */ 48231200Smm#define MSR_PERF_STATUS 0x198 49231200Smm#define MSR_PERF_CTL 0x199 50231200Smm 51231200Smm/* Register and bit for enabling SpeedStep. */ 52231200Smm#define MSR_MISC_ENABLE 0x1a0 53231200Smm#define MSR_SS_ENABLE (1<<16) 54231200Smm 55231200Smm/* Frequency and MSR control values. */ 56231200Smmtypedef struct { 57231200Smm uint16_t freq; 58231200Smm uint16_t volts; 59231200Smm uint16_t id16; 60231200Smm int power; 61231200Smm} freq_info; 62231200Smm 63231200Smm/* Identifying characteristics of a processor and supported frequencies. */ 64231200Smmtypedef struct { 65231200Smm const char *vendor; 66231200Smm uint32_t id32; 67231200Smm freq_info *freqtab; 68231200Smm} cpu_info; 69231200Smm 70231200Smmstruct est_softc { 71231200Smm device_t dev; 72231200Smm int acpi_settings; 73231200Smm freq_info *freq_list; 74231200Smm}; 75231200Smm 76231200Smm/* Convert MHz and mV into IDs for passing to the MSR. */ 77231200Smm#define ID16(MHz, mV, bus_clk) \ 78231200Smm (((MHz / bus_clk) << 8) | ((mV ? mV - 700 : 0) >> 4)) 79231200Smm#define ID32(MHz_hi, mV_hi, MHz_lo, mV_lo, bus_clk) \ 80231200Smm ((ID16(MHz_lo, mV_lo, bus_clk) << 16) | (ID16(MHz_hi, mV_hi, bus_clk))) 81231200Smm 82231200Smm/* Format for storing IDs in our table. */ 83231200Smm#define FREQ_INFO_PWR(MHz, mV, bus_clk, mW) \ 84231200Smm { MHz, mV, ID16(MHz, mV, bus_clk), mW } 85231200Smm#define FREQ_INFO(MHz, mV, bus_clk) \ 86231200Smm FREQ_INFO_PWR(MHz, mV, bus_clk, CPUFREQ_VAL_UNKNOWN) 87231200Smm#define INTEL(tab, zhi, vhi, zlo, vlo, bus_clk) \ 88231200Smm { intel_id, ID32(zhi, vhi, zlo, vlo, bus_clk), tab } 89231200Smm#define CENTAUR(tab, zhi, vhi, zlo, vlo, bus_clk) \ 90231200Smm { centaur_id, ID32(zhi, vhi, zlo, vlo, bus_clk), tab } 91231200Smm 92231200Smmconst char intel_id[] = "GenuineIntel"; 93231200Smmconst char centaur_id[] = "CentaurHauls"; 94231200Smm 95231200Smm/* Default bus clock value for Centrino processors. */ 96231200Smm#define INTEL_BUS_CLK 100 97231200Smm 98231200Smm/* XXX Update this if new CPUs have more settings. */ 99231200Smm#define EST_MAX_SETTINGS 10 100231200SmmCTASSERT(EST_MAX_SETTINGS <= MAX_SETTINGS); 101231200Smm 102231200Smm/* Estimate in microseconds of latency for performing a transition. */ 103231200Smm#define EST_TRANS_LAT 10 104231200Smm 105231200Smm/* 106231200Smm * Frequency (MHz) and voltage (mV) settings. Data from the 107231200Smm * Intel Pentium M Processor Datasheet (Order Number 252612), Table 5. 108231200Smm * 109231200Smm * Dothan processors have multiple VID#s with different settings for 110231200Smm * each VID#. Since we can't uniquely identify this info 111231200Smm * without undisclosed methods from Intel, we can't support newer 112231200Smm * processors with this table method. If ACPI Px states are supported, 113231200Smm * we get info from them. 114231200Smm */ 115231200Smmstatic freq_info PM17_130[] = { 116231200Smm /* 130nm 1.70GHz Pentium M */ 117231200Smm FREQ_INFO(1700, 1484, INTEL_BUS_CLK), 118 FREQ_INFO(1400, 1308, INTEL_BUS_CLK), 119 FREQ_INFO(1200, 1228, INTEL_BUS_CLK), 120 FREQ_INFO(1000, 1116, INTEL_BUS_CLK), 121 FREQ_INFO( 800, 1004, INTEL_BUS_CLK), 122 FREQ_INFO( 600, 956, INTEL_BUS_CLK), 123 FREQ_INFO( 0, 0, 1), 124}; 125static freq_info PM16_130[] = { 126 /* 130nm 1.60GHz Pentium M */ 127 FREQ_INFO(1600, 1484, INTEL_BUS_CLK), 128 FREQ_INFO(1400, 1420, INTEL_BUS_CLK), 129 FREQ_INFO(1200, 1276, INTEL_BUS_CLK), 130 FREQ_INFO(1000, 1164, INTEL_BUS_CLK), 131 FREQ_INFO( 800, 1036, INTEL_BUS_CLK), 132 FREQ_INFO( 600, 956, INTEL_BUS_CLK), 133 FREQ_INFO( 0, 0, 1), 134}; 135static freq_info PM15_130[] = { 136 /* 130nm 1.50GHz Pentium M */ 137 FREQ_INFO(1500, 1484, INTEL_BUS_CLK), 138 FREQ_INFO(1400, 1452, INTEL_BUS_CLK), 139 FREQ_INFO(1200, 1356, INTEL_BUS_CLK), 140 FREQ_INFO(1000, 1228, INTEL_BUS_CLK), 141 FREQ_INFO( 800, 1116, INTEL_BUS_CLK), 142 FREQ_INFO( 600, 956, INTEL_BUS_CLK), 143 FREQ_INFO( 0, 0, 1), 144}; 145static freq_info PM14_130[] = { 146 /* 130nm 1.40GHz Pentium M */ 147 FREQ_INFO(1400, 1484, INTEL_BUS_CLK), 148 FREQ_INFO(1200, 1436, INTEL_BUS_CLK), 149 FREQ_INFO(1000, 1308, INTEL_BUS_CLK), 150 FREQ_INFO( 800, 1180, INTEL_BUS_CLK), 151 FREQ_INFO( 600, 956, INTEL_BUS_CLK), 152 FREQ_INFO( 0, 0, 1), 153}; 154static freq_info PM13_130[] = { 155 /* 130nm 1.30GHz Pentium M */ 156 FREQ_INFO(1300, 1388, INTEL_BUS_CLK), 157 FREQ_INFO(1200, 1356, INTEL_BUS_CLK), 158 FREQ_INFO(1000, 1292, INTEL_BUS_CLK), 159 FREQ_INFO( 800, 1260, INTEL_BUS_CLK), 160 FREQ_INFO( 600, 956, INTEL_BUS_CLK), 161 FREQ_INFO( 0, 0, 1), 162}; 163static freq_info PM13_LV_130[] = { 164 /* 130nm 1.30GHz Low Voltage Pentium M */ 165 FREQ_INFO(1300, 1180, INTEL_BUS_CLK), 166 FREQ_INFO(1200, 1164, INTEL_BUS_CLK), 167 FREQ_INFO(1100, 1100, INTEL_BUS_CLK), 168 FREQ_INFO(1000, 1020, INTEL_BUS_CLK), 169 FREQ_INFO( 900, 1004, INTEL_BUS_CLK), 170 FREQ_INFO( 800, 988, INTEL_BUS_CLK), 171 FREQ_INFO( 600, 956, INTEL_BUS_CLK), 172 FREQ_INFO( 0, 0, 1), 173}; 174static freq_info PM12_LV_130[] = { 175 /* 130 nm 1.20GHz Low Voltage Pentium M */ 176 FREQ_INFO(1200, 1180, INTEL_BUS_CLK), 177 FREQ_INFO(1100, 1164, INTEL_BUS_CLK), 178 FREQ_INFO(1000, 1100, INTEL_BUS_CLK), 179 FREQ_INFO( 900, 1020, INTEL_BUS_CLK), 180 FREQ_INFO( 800, 1004, INTEL_BUS_CLK), 181 FREQ_INFO( 600, 956, INTEL_BUS_CLK), 182 FREQ_INFO( 0, 0, 1), 183}; 184static freq_info PM11_LV_130[] = { 185 /* 130 nm 1.10GHz Low Voltage Pentium M */ 186 FREQ_INFO(1100, 1180, INTEL_BUS_CLK), 187 FREQ_INFO(1000, 1164, INTEL_BUS_CLK), 188 FREQ_INFO( 900, 1100, INTEL_BUS_CLK), 189 FREQ_INFO( 800, 1020, INTEL_BUS_CLK), 190 FREQ_INFO( 600, 956, INTEL_BUS_CLK), 191 FREQ_INFO( 0, 0, 1), 192}; 193static freq_info PM11_ULV_130[] = { 194 /* 130 nm 1.10GHz Ultra Low Voltage Pentium M */ 195 FREQ_INFO(1100, 1004, INTEL_BUS_CLK), 196 FREQ_INFO(1000, 988, INTEL_BUS_CLK), 197 FREQ_INFO( 900, 972, INTEL_BUS_CLK), 198 FREQ_INFO( 800, 956, INTEL_BUS_CLK), 199 FREQ_INFO( 600, 844, INTEL_BUS_CLK), 200 FREQ_INFO( 0, 0, 1), 201}; 202static freq_info PM10_ULV_130[] = { 203 /* 130 nm 1.00GHz Ultra Low Voltage Pentium M */ 204 FREQ_INFO(1000, 1004, INTEL_BUS_CLK), 205 FREQ_INFO( 900, 988, INTEL_BUS_CLK), 206 FREQ_INFO( 800, 972, INTEL_BUS_CLK), 207 FREQ_INFO( 600, 844, INTEL_BUS_CLK), 208 FREQ_INFO( 0, 0, 1), 209}; 210 211/* 212 * Data from "Intel Pentium M Processor on 90nm Process with 213 * 2-MB L2 Cache Datasheet", Order Number 302189, Table 5. 214 */ 215static freq_info PM_765A_90[] = { 216 /* 90 nm 2.10GHz Pentium M, VID #A */ 217 FREQ_INFO(2100, 1340, INTEL_BUS_CLK), 218 FREQ_INFO(1800, 1276, INTEL_BUS_CLK), 219 FREQ_INFO(1600, 1228, INTEL_BUS_CLK), 220 FREQ_INFO(1400, 1180, INTEL_BUS_CLK), 221 FREQ_INFO(1200, 1132, INTEL_BUS_CLK), 222 FREQ_INFO(1000, 1084, INTEL_BUS_CLK), 223 FREQ_INFO( 800, 1036, INTEL_BUS_CLK), 224 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 225 FREQ_INFO( 0, 0, 1), 226}; 227static freq_info PM_765B_90[] = { 228 /* 90 nm 2.10GHz Pentium M, VID #B */ 229 FREQ_INFO(2100, 1324, INTEL_BUS_CLK), 230 FREQ_INFO(1800, 1260, INTEL_BUS_CLK), 231 FREQ_INFO(1600, 1212, INTEL_BUS_CLK), 232 FREQ_INFO(1400, 1180, INTEL_BUS_CLK), 233 FREQ_INFO(1200, 1132, INTEL_BUS_CLK), 234 FREQ_INFO(1000, 1084, INTEL_BUS_CLK), 235 FREQ_INFO( 800, 1036, INTEL_BUS_CLK), 236 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 237 FREQ_INFO( 0, 0, 1), 238}; 239static freq_info PM_765C_90[] = { 240 /* 90 nm 2.10GHz Pentium M, VID #C */ 241 FREQ_INFO(2100, 1308, INTEL_BUS_CLK), 242 FREQ_INFO(1800, 1244, INTEL_BUS_CLK), 243 FREQ_INFO(1600, 1212, INTEL_BUS_CLK), 244 FREQ_INFO(1400, 1164, INTEL_BUS_CLK), 245 FREQ_INFO(1200, 1116, INTEL_BUS_CLK), 246 FREQ_INFO(1000, 1084, INTEL_BUS_CLK), 247 FREQ_INFO( 800, 1036, INTEL_BUS_CLK), 248 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 249 FREQ_INFO( 0, 0, 1), 250}; 251static freq_info PM_765E_90[] = { 252 /* 90 nm 2.10GHz Pentium M, VID #E */ 253 FREQ_INFO(2100, 1356, INTEL_BUS_CLK), 254 FREQ_INFO(1800, 1292, INTEL_BUS_CLK), 255 FREQ_INFO(1600, 1244, INTEL_BUS_CLK), 256 FREQ_INFO(1400, 1196, INTEL_BUS_CLK), 257 FREQ_INFO(1200, 1148, INTEL_BUS_CLK), 258 FREQ_INFO(1000, 1100, INTEL_BUS_CLK), 259 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 260 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 261 FREQ_INFO( 0, 0, 1), 262}; 263static freq_info PM_755A_90[] = { 264 /* 90 nm 2.00GHz Pentium M, VID #A */ 265 FREQ_INFO(2000, 1340, INTEL_BUS_CLK), 266 FREQ_INFO(1800, 1292, INTEL_BUS_CLK), 267 FREQ_INFO(1600, 1244, INTEL_BUS_CLK), 268 FREQ_INFO(1400, 1196, INTEL_BUS_CLK), 269 FREQ_INFO(1200, 1148, INTEL_BUS_CLK), 270 FREQ_INFO(1000, 1100, INTEL_BUS_CLK), 271 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 272 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 273 FREQ_INFO( 0, 0, 1), 274}; 275static freq_info PM_755B_90[] = { 276 /* 90 nm 2.00GHz Pentium M, VID #B */ 277 FREQ_INFO(2000, 1324, INTEL_BUS_CLK), 278 FREQ_INFO(1800, 1276, INTEL_BUS_CLK), 279 FREQ_INFO(1600, 1228, INTEL_BUS_CLK), 280 FREQ_INFO(1400, 1180, INTEL_BUS_CLK), 281 FREQ_INFO(1200, 1132, INTEL_BUS_CLK), 282 FREQ_INFO(1000, 1084, INTEL_BUS_CLK), 283 FREQ_INFO( 800, 1036, INTEL_BUS_CLK), 284 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 285 FREQ_INFO( 0, 0, 1), 286}; 287static freq_info PM_755C_90[] = { 288 /* 90 nm 2.00GHz Pentium M, VID #C */ 289 FREQ_INFO(2000, 1308, INTEL_BUS_CLK), 290 FREQ_INFO(1800, 1276, INTEL_BUS_CLK), 291 FREQ_INFO(1600, 1228, INTEL_BUS_CLK), 292 FREQ_INFO(1400, 1180, INTEL_BUS_CLK), 293 FREQ_INFO(1200, 1132, INTEL_BUS_CLK), 294 FREQ_INFO(1000, 1084, INTEL_BUS_CLK), 295 FREQ_INFO( 800, 1036, INTEL_BUS_CLK), 296 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 297 FREQ_INFO( 0, 0, 1), 298}; 299static freq_info PM_755D_90[] = { 300 /* 90 nm 2.00GHz Pentium M, VID #D */ 301 FREQ_INFO(2000, 1276, INTEL_BUS_CLK), 302 FREQ_INFO(1800, 1244, INTEL_BUS_CLK), 303 FREQ_INFO(1600, 1196, INTEL_BUS_CLK), 304 FREQ_INFO(1400, 1164, INTEL_BUS_CLK), 305 FREQ_INFO(1200, 1116, INTEL_BUS_CLK), 306 FREQ_INFO(1000, 1084, INTEL_BUS_CLK), 307 FREQ_INFO( 800, 1036, INTEL_BUS_CLK), 308 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 309 FREQ_INFO( 0, 0, 1), 310}; 311static freq_info PM_745A_90[] = { 312 /* 90 nm 1.80GHz Pentium M, VID #A */ 313 FREQ_INFO(1800, 1340, INTEL_BUS_CLK), 314 FREQ_INFO(1600, 1292, INTEL_BUS_CLK), 315 FREQ_INFO(1400, 1228, INTEL_BUS_CLK), 316 FREQ_INFO(1200, 1164, INTEL_BUS_CLK), 317 FREQ_INFO(1000, 1116, INTEL_BUS_CLK), 318 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 319 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 320 FREQ_INFO( 0, 0, 1), 321}; 322static freq_info PM_745B_90[] = { 323 /* 90 nm 1.80GHz Pentium M, VID #B */ 324 FREQ_INFO(1800, 1324, INTEL_BUS_CLK), 325 FREQ_INFO(1600, 1276, INTEL_BUS_CLK), 326 FREQ_INFO(1400, 1212, INTEL_BUS_CLK), 327 FREQ_INFO(1200, 1164, INTEL_BUS_CLK), 328 FREQ_INFO(1000, 1116, INTEL_BUS_CLK), 329 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 330 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 331 FREQ_INFO( 0, 0, 1), 332}; 333static freq_info PM_745C_90[] = { 334 /* 90 nm 1.80GHz Pentium M, VID #C */ 335 FREQ_INFO(1800, 1308, INTEL_BUS_CLK), 336 FREQ_INFO(1600, 1260, INTEL_BUS_CLK), 337 FREQ_INFO(1400, 1212, INTEL_BUS_CLK), 338 FREQ_INFO(1200, 1148, INTEL_BUS_CLK), 339 FREQ_INFO(1000, 1100, INTEL_BUS_CLK), 340 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 341 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 342 FREQ_INFO( 0, 0, 1), 343}; 344static freq_info PM_745D_90[] = { 345 /* 90 nm 1.80GHz Pentium M, VID #D */ 346 FREQ_INFO(1800, 1276, INTEL_BUS_CLK), 347 FREQ_INFO(1600, 1228, INTEL_BUS_CLK), 348 FREQ_INFO(1400, 1180, INTEL_BUS_CLK), 349 FREQ_INFO(1200, 1132, INTEL_BUS_CLK), 350 FREQ_INFO(1000, 1084, INTEL_BUS_CLK), 351 FREQ_INFO( 800, 1036, INTEL_BUS_CLK), 352 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 353 FREQ_INFO( 0, 0, 1), 354}; 355static freq_info PM_735A_90[] = { 356 /* 90 nm 1.70GHz Pentium M, VID #A */ 357 FREQ_INFO(1700, 1340, INTEL_BUS_CLK), 358 FREQ_INFO(1400, 1244, INTEL_BUS_CLK), 359 FREQ_INFO(1200, 1180, INTEL_BUS_CLK), 360 FREQ_INFO(1000, 1116, INTEL_BUS_CLK), 361 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 362 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 363 FREQ_INFO( 0, 0, 1), 364}; 365static freq_info PM_735B_90[] = { 366 /* 90 nm 1.70GHz Pentium M, VID #B */ 367 FREQ_INFO(1700, 1324, INTEL_BUS_CLK), 368 FREQ_INFO(1400, 1244, INTEL_BUS_CLK), 369 FREQ_INFO(1200, 1180, INTEL_BUS_CLK), 370 FREQ_INFO(1000, 1116, INTEL_BUS_CLK), 371 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 372 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 373 FREQ_INFO( 0, 0, 1), 374}; 375static freq_info PM_735C_90[] = { 376 /* 90 nm 1.70GHz Pentium M, VID #C */ 377 FREQ_INFO(1700, 1308, INTEL_BUS_CLK), 378 FREQ_INFO(1400, 1228, INTEL_BUS_CLK), 379 FREQ_INFO(1200, 1164, INTEL_BUS_CLK), 380 FREQ_INFO(1000, 1116, INTEL_BUS_CLK), 381 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 382 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 383 FREQ_INFO( 0, 0, 1), 384}; 385static freq_info PM_735D_90[] = { 386 /* 90 nm 1.70GHz Pentium M, VID #D */ 387 FREQ_INFO(1700, 1276, INTEL_BUS_CLK), 388 FREQ_INFO(1400, 1212, INTEL_BUS_CLK), 389 FREQ_INFO(1200, 1148, INTEL_BUS_CLK), 390 FREQ_INFO(1000, 1100, INTEL_BUS_CLK), 391 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 392 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 393 FREQ_INFO( 0, 0, 1), 394}; 395static freq_info PM_725A_90[] = { 396 /* 90 nm 1.60GHz Pentium M, VID #A */ 397 FREQ_INFO(1600, 1340, INTEL_BUS_CLK), 398 FREQ_INFO(1400, 1276, INTEL_BUS_CLK), 399 FREQ_INFO(1200, 1212, INTEL_BUS_CLK), 400 FREQ_INFO(1000, 1132, INTEL_BUS_CLK), 401 FREQ_INFO( 800, 1068, INTEL_BUS_CLK), 402 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 403 FREQ_INFO( 0, 0, 1), 404}; 405static freq_info PM_725B_90[] = { 406 /* 90 nm 1.60GHz Pentium M, VID #B */ 407 FREQ_INFO(1600, 1324, INTEL_BUS_CLK), 408 FREQ_INFO(1400, 1260, INTEL_BUS_CLK), 409 FREQ_INFO(1200, 1196, INTEL_BUS_CLK), 410 FREQ_INFO(1000, 1132, INTEL_BUS_CLK), 411 FREQ_INFO( 800, 1068, INTEL_BUS_CLK), 412 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 413 FREQ_INFO( 0, 0, 1), 414}; 415static freq_info PM_725C_90[] = { 416 /* 90 nm 1.60GHz Pentium M, VID #C */ 417 FREQ_INFO(1600, 1308, INTEL_BUS_CLK), 418 FREQ_INFO(1400, 1244, INTEL_BUS_CLK), 419 FREQ_INFO(1200, 1180, INTEL_BUS_CLK), 420 FREQ_INFO(1000, 1116, INTEL_BUS_CLK), 421 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 422 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 423 FREQ_INFO( 0, 0, 1), 424}; 425static freq_info PM_725D_90[] = { 426 /* 90 nm 1.60GHz Pentium M, VID #D */ 427 FREQ_INFO(1600, 1276, INTEL_BUS_CLK), 428 FREQ_INFO(1400, 1228, INTEL_BUS_CLK), 429 FREQ_INFO(1200, 1164, INTEL_BUS_CLK), 430 FREQ_INFO(1000, 1116, INTEL_BUS_CLK), 431 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 432 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 433 FREQ_INFO( 0, 0, 1), 434}; 435static freq_info PM_715A_90[] = { 436 /* 90 nm 1.50GHz Pentium M, VID #A */ 437 FREQ_INFO(1500, 1340, INTEL_BUS_CLK), 438 FREQ_INFO(1200, 1228, INTEL_BUS_CLK), 439 FREQ_INFO(1000, 1148, INTEL_BUS_CLK), 440 FREQ_INFO( 800, 1068, INTEL_BUS_CLK), 441 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 442 FREQ_INFO( 0, 0, 1), 443}; 444static freq_info PM_715B_90[] = { 445 /* 90 nm 1.50GHz Pentium M, VID #B */ 446 FREQ_INFO(1500, 1324, INTEL_BUS_CLK), 447 FREQ_INFO(1200, 1212, INTEL_BUS_CLK), 448 FREQ_INFO(1000, 1148, INTEL_BUS_CLK), 449 FREQ_INFO( 800, 1068, INTEL_BUS_CLK), 450 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 451 FREQ_INFO( 0, 0, 1), 452}; 453static freq_info PM_715C_90[] = { 454 /* 90 nm 1.50GHz Pentium M, VID #C */ 455 FREQ_INFO(1500, 1308, INTEL_BUS_CLK), 456 FREQ_INFO(1200, 1212, INTEL_BUS_CLK), 457 FREQ_INFO(1000, 1132, INTEL_BUS_CLK), 458 FREQ_INFO( 800, 1068, INTEL_BUS_CLK), 459 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 460 FREQ_INFO( 0, 0, 1), 461}; 462static freq_info PM_715D_90[] = { 463 /* 90 nm 1.50GHz Pentium M, VID #D */ 464 FREQ_INFO(1500, 1276, INTEL_BUS_CLK), 465 FREQ_INFO(1200, 1180, INTEL_BUS_CLK), 466 FREQ_INFO(1000, 1116, INTEL_BUS_CLK), 467 FREQ_INFO( 800, 1052, INTEL_BUS_CLK), 468 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 469 FREQ_INFO( 0, 0, 1), 470}; 471static freq_info PM_778_90[] = { 472 /* 90 nm 1.60GHz Low Voltage Pentium M */ 473 FREQ_INFO(1600, 1116, INTEL_BUS_CLK), 474 FREQ_INFO(1500, 1116, INTEL_BUS_CLK), 475 FREQ_INFO(1400, 1100, INTEL_BUS_CLK), 476 FREQ_INFO(1300, 1084, INTEL_BUS_CLK), 477 FREQ_INFO(1200, 1068, INTEL_BUS_CLK), 478 FREQ_INFO(1100, 1052, INTEL_BUS_CLK), 479 FREQ_INFO(1000, 1052, INTEL_BUS_CLK), 480 FREQ_INFO( 900, 1036, INTEL_BUS_CLK), 481 FREQ_INFO( 800, 1020, INTEL_BUS_CLK), 482 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 483 FREQ_INFO( 0, 0, 1), 484}; 485static freq_info PM_758_90[] = { 486 /* 90 nm 1.50GHz Low Voltage Pentium M */ 487 FREQ_INFO(1500, 1116, INTEL_BUS_CLK), 488 FREQ_INFO(1400, 1116, INTEL_BUS_CLK), 489 FREQ_INFO(1300, 1100, INTEL_BUS_CLK), 490 FREQ_INFO(1200, 1084, INTEL_BUS_CLK), 491 FREQ_INFO(1100, 1068, INTEL_BUS_CLK), 492 FREQ_INFO(1000, 1052, INTEL_BUS_CLK), 493 FREQ_INFO( 900, 1036, INTEL_BUS_CLK), 494 FREQ_INFO( 800, 1020, INTEL_BUS_CLK), 495 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 496 FREQ_INFO( 0, 0, 1), 497}; 498static freq_info PM_738_90[] = { 499 /* 90 nm 1.40GHz Low Voltage Pentium M */ 500 FREQ_INFO(1400, 1116, INTEL_BUS_CLK), 501 FREQ_INFO(1300, 1116, INTEL_BUS_CLK), 502 FREQ_INFO(1200, 1100, INTEL_BUS_CLK), 503 FREQ_INFO(1100, 1068, INTEL_BUS_CLK), 504 FREQ_INFO(1000, 1052, INTEL_BUS_CLK), 505 FREQ_INFO( 900, 1036, INTEL_BUS_CLK), 506 FREQ_INFO( 800, 1020, INTEL_BUS_CLK), 507 FREQ_INFO( 600, 988, INTEL_BUS_CLK), 508 FREQ_INFO( 0, 0, 1), 509}; 510static freq_info PM_773G_90[] = { 511 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #G */ 512 FREQ_INFO(1300, 956, INTEL_BUS_CLK), 513 FREQ_INFO(1200, 940, INTEL_BUS_CLK), 514 FREQ_INFO(1100, 924, INTEL_BUS_CLK), 515 FREQ_INFO(1000, 908, INTEL_BUS_CLK), 516 FREQ_INFO( 900, 876, INTEL_BUS_CLK), 517 FREQ_INFO( 800, 860, INTEL_BUS_CLK), 518 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 519}; 520static freq_info PM_773H_90[] = { 521 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #H */ 522 FREQ_INFO(1300, 940, INTEL_BUS_CLK), 523 FREQ_INFO(1200, 924, INTEL_BUS_CLK), 524 FREQ_INFO(1100, 908, INTEL_BUS_CLK), 525 FREQ_INFO(1000, 892, INTEL_BUS_CLK), 526 FREQ_INFO( 900, 876, INTEL_BUS_CLK), 527 FREQ_INFO( 800, 860, INTEL_BUS_CLK), 528 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 529}; 530static freq_info PM_773I_90[] = { 531 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #I */ 532 FREQ_INFO(1300, 924, INTEL_BUS_CLK), 533 FREQ_INFO(1200, 908, INTEL_BUS_CLK), 534 FREQ_INFO(1100, 892, INTEL_BUS_CLK), 535 FREQ_INFO(1000, 876, INTEL_BUS_CLK), 536 FREQ_INFO( 900, 860, INTEL_BUS_CLK), 537 FREQ_INFO( 800, 844, INTEL_BUS_CLK), 538 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 539}; 540static freq_info PM_773J_90[] = { 541 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #J */ 542 FREQ_INFO(1300, 908, INTEL_BUS_CLK), 543 FREQ_INFO(1200, 908, INTEL_BUS_CLK), 544 FREQ_INFO(1100, 892, INTEL_BUS_CLK), 545 FREQ_INFO(1000, 876, INTEL_BUS_CLK), 546 FREQ_INFO( 900, 860, INTEL_BUS_CLK), 547 FREQ_INFO( 800, 844, INTEL_BUS_CLK), 548 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 549}; 550static freq_info PM_773K_90[] = { 551 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #K */ 552 FREQ_INFO(1300, 892, INTEL_BUS_CLK), 553 FREQ_INFO(1200, 892, INTEL_BUS_CLK), 554 FREQ_INFO(1100, 876, INTEL_BUS_CLK), 555 FREQ_INFO(1000, 860, INTEL_BUS_CLK), 556 FREQ_INFO( 900, 860, INTEL_BUS_CLK), 557 FREQ_INFO( 800, 844, INTEL_BUS_CLK), 558 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 559}; 560static freq_info PM_773L_90[] = { 561 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #L */ 562 FREQ_INFO(1300, 876, INTEL_BUS_CLK), 563 FREQ_INFO(1200, 876, INTEL_BUS_CLK), 564 FREQ_INFO(1100, 860, INTEL_BUS_CLK), 565 FREQ_INFO(1000, 860, INTEL_BUS_CLK), 566 FREQ_INFO( 900, 844, INTEL_BUS_CLK), 567 FREQ_INFO( 800, 844, INTEL_BUS_CLK), 568 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 569}; 570static freq_info PM_753G_90[] = { 571 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #G */ 572 FREQ_INFO(1200, 956, INTEL_BUS_CLK), 573 FREQ_INFO(1100, 940, INTEL_BUS_CLK), 574 FREQ_INFO(1000, 908, INTEL_BUS_CLK), 575 FREQ_INFO( 900, 892, INTEL_BUS_CLK), 576 FREQ_INFO( 800, 860, INTEL_BUS_CLK), 577 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 578}; 579static freq_info PM_753H_90[] = { 580 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #H */ 581 FREQ_INFO(1200, 940, INTEL_BUS_CLK), 582 FREQ_INFO(1100, 924, INTEL_BUS_CLK), 583 FREQ_INFO(1000, 908, INTEL_BUS_CLK), 584 FREQ_INFO( 900, 876, INTEL_BUS_CLK), 585 FREQ_INFO( 800, 860, INTEL_BUS_CLK), 586 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 587}; 588static freq_info PM_753I_90[] = { 589 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #I */ 590 FREQ_INFO(1200, 924, INTEL_BUS_CLK), 591 FREQ_INFO(1100, 908, INTEL_BUS_CLK), 592 FREQ_INFO(1000, 892, INTEL_BUS_CLK), 593 FREQ_INFO( 900, 876, INTEL_BUS_CLK), 594 FREQ_INFO( 800, 860, INTEL_BUS_CLK), 595 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 596}; 597static freq_info PM_753J_90[] = { 598 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #J */ 599 FREQ_INFO(1200, 908, INTEL_BUS_CLK), 600 FREQ_INFO(1100, 892, INTEL_BUS_CLK), 601 FREQ_INFO(1000, 876, INTEL_BUS_CLK), 602 FREQ_INFO( 900, 860, INTEL_BUS_CLK), 603 FREQ_INFO( 800, 844, INTEL_BUS_CLK), 604 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 605}; 606static freq_info PM_753K_90[] = { 607 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #K */ 608 FREQ_INFO(1200, 892, INTEL_BUS_CLK), 609 FREQ_INFO(1100, 892, INTEL_BUS_CLK), 610 FREQ_INFO(1000, 876, INTEL_BUS_CLK), 611 FREQ_INFO( 900, 860, INTEL_BUS_CLK), 612 FREQ_INFO( 800, 844, INTEL_BUS_CLK), 613 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 614}; 615static freq_info PM_753L_90[] = { 616 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #L */ 617 FREQ_INFO(1200, 876, INTEL_BUS_CLK), 618 FREQ_INFO(1100, 876, INTEL_BUS_CLK), 619 FREQ_INFO(1000, 860, INTEL_BUS_CLK), 620 FREQ_INFO( 900, 844, INTEL_BUS_CLK), 621 FREQ_INFO( 800, 844, INTEL_BUS_CLK), 622 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 623}; 624 625static freq_info PM_733JG_90[] = { 626 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #G */ 627 FREQ_INFO(1100, 956, INTEL_BUS_CLK), 628 FREQ_INFO(1000, 940, INTEL_BUS_CLK), 629 FREQ_INFO( 900, 908, INTEL_BUS_CLK), 630 FREQ_INFO( 800, 876, INTEL_BUS_CLK), 631 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 632}; 633static freq_info PM_733JH_90[] = { 634 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #H */ 635 FREQ_INFO(1100, 940, INTEL_BUS_CLK), 636 FREQ_INFO(1000, 924, INTEL_BUS_CLK), 637 FREQ_INFO( 900, 892, INTEL_BUS_CLK), 638 FREQ_INFO( 800, 876, INTEL_BUS_CLK), 639 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 640}; 641static freq_info PM_733JI_90[] = { 642 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #I */ 643 FREQ_INFO(1100, 924, INTEL_BUS_CLK), 644 FREQ_INFO(1000, 908, INTEL_BUS_CLK), 645 FREQ_INFO( 900, 892, INTEL_BUS_CLK), 646 FREQ_INFO( 800, 860, INTEL_BUS_CLK), 647 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 648}; 649static freq_info PM_733JJ_90[] = { 650 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #J */ 651 FREQ_INFO(1100, 908, INTEL_BUS_CLK), 652 FREQ_INFO(1000, 892, INTEL_BUS_CLK), 653 FREQ_INFO( 900, 876, INTEL_BUS_CLK), 654 FREQ_INFO( 800, 860, INTEL_BUS_CLK), 655 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 656}; 657static freq_info PM_733JK_90[] = { 658 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #K */ 659 FREQ_INFO(1100, 892, INTEL_BUS_CLK), 660 FREQ_INFO(1000, 876, INTEL_BUS_CLK), 661 FREQ_INFO( 900, 860, INTEL_BUS_CLK), 662 FREQ_INFO( 800, 844, INTEL_BUS_CLK), 663 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 664}; 665static freq_info PM_733JL_90[] = { 666 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #L */ 667 FREQ_INFO(1100, 876, INTEL_BUS_CLK), 668 FREQ_INFO(1000, 876, INTEL_BUS_CLK), 669 FREQ_INFO( 900, 860, INTEL_BUS_CLK), 670 FREQ_INFO( 800, 844, INTEL_BUS_CLK), 671 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 672}; 673static freq_info PM_733_90[] = { 674 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M */ 675 FREQ_INFO(1100, 940, INTEL_BUS_CLK), 676 FREQ_INFO(1000, 924, INTEL_BUS_CLK), 677 FREQ_INFO( 900, 892, INTEL_BUS_CLK), 678 FREQ_INFO( 800, 876, INTEL_BUS_CLK), 679 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 680 FREQ_INFO( 0, 0, 1), 681}; 682static freq_info PM_723_90[] = { 683 /* 90 nm 1.00GHz Ultra Low Voltage Pentium M */ 684 FREQ_INFO(1000, 940, INTEL_BUS_CLK), 685 FREQ_INFO( 900, 908, INTEL_BUS_CLK), 686 FREQ_INFO( 800, 876, INTEL_BUS_CLK), 687 FREQ_INFO( 600, 812, INTEL_BUS_CLK), 688 FREQ_INFO( 0, 0, 1), 689}; 690 691/* 692 * VIA C7-M 500 MHz FSB, 400 MHz FSB, and ULV variants. 693 * Data from the "VIA C7-M Processor BIOS Writer's Guide (v2.17)" datasheet. 694 */ 695static freq_info C7M_795[] = { 696 /* 2.00GHz Centaur C7-M 533 Mhz FSB */ 697 FREQ_INFO_PWR(2000, 1148, 133, 20000), 698 FREQ_INFO_PWR(1867, 1132, 133, 18000), 699 FREQ_INFO_PWR(1600, 1100, 133, 15000), 700 FREQ_INFO_PWR(1467, 1052, 133, 13000), 701 FREQ_INFO_PWR(1200, 1004, 133, 10000), 702 FREQ_INFO_PWR( 800, 844, 133, 7000), 703 FREQ_INFO_PWR( 667, 844, 133, 6000), 704 FREQ_INFO_PWR( 533, 844, 133, 5000), 705 FREQ_INFO(0, 0, 1), 706}; 707static freq_info C7M_785[] = { 708 /* 1.80GHz Centaur C7-M 533 Mhz FSB */ 709 FREQ_INFO_PWR(1867, 1148, 133, 18000), 710 FREQ_INFO_PWR(1600, 1100, 133, 15000), 711 FREQ_INFO_PWR(1467, 1052, 133, 13000), 712 FREQ_INFO_PWR(1200, 1004, 133, 10000), 713 FREQ_INFO_PWR( 800, 844, 133, 7000), 714 FREQ_INFO_PWR( 667, 844, 133, 6000), 715 FREQ_INFO_PWR( 533, 844, 133, 5000), 716 FREQ_INFO(0, 0, 1), 717}; 718static freq_info C7M_765[] = { 719 /* 1.60GHz Centaur C7-M 533 Mhz FSB */ 720 FREQ_INFO_PWR(1600, 1084, 133, 15000), 721 FREQ_INFO_PWR(1467, 1052, 133, 13000), 722 FREQ_INFO_PWR(1200, 1004, 133, 10000), 723 FREQ_INFO_PWR( 800, 844, 133, 7000), 724 FREQ_INFO_PWR( 667, 844, 133, 6000), 725 FREQ_INFO_PWR( 533, 844, 133, 5000), 726 FREQ_INFO(0, 0, 1), 727}; 728 729static freq_info C7M_794[] = { 730 /* 2.00GHz Centaur C7-M 400 Mhz FSB */ 731 FREQ_INFO_PWR(2000, 1148, 100, 20000), 732 FREQ_INFO_PWR(1800, 1132, 100, 18000), 733 FREQ_INFO_PWR(1600, 1100, 100, 15000), 734 FREQ_INFO_PWR(1400, 1052, 100, 13000), 735 FREQ_INFO_PWR(1000, 1004, 100, 10000), 736 FREQ_INFO_PWR( 800, 844, 100, 7000), 737 FREQ_INFO_PWR( 600, 844, 100, 6000), 738 FREQ_INFO_PWR( 400, 844, 100, 5000), 739 FREQ_INFO(0, 0, 1), 740}; 741static freq_info C7M_784[] = { 742 /* 1.80GHz Centaur C7-M 400 Mhz FSB */ 743 FREQ_INFO_PWR(1800, 1148, 100, 18000), 744 FREQ_INFO_PWR(1600, 1100, 100, 15000), 745 FREQ_INFO_PWR(1400, 1052, 100, 13000), 746 FREQ_INFO_PWR(1000, 1004, 100, 10000), 747 FREQ_INFO_PWR( 800, 844, 100, 7000), 748 FREQ_INFO_PWR( 600, 844, 100, 6000), 749 FREQ_INFO_PWR( 400, 844, 100, 5000), 750 FREQ_INFO(0, 0, 1), 751}; 752static freq_info C7M_764[] = { 753 /* 1.60GHz Centaur C7-M 400 Mhz FSB */ 754 FREQ_INFO_PWR(1600, 1084, 100, 15000), 755 FREQ_INFO_PWR(1400, 1052, 100, 13000), 756 FREQ_INFO_PWR(1000, 1004, 100, 10000), 757 FREQ_INFO_PWR( 800, 844, 100, 7000), 758 FREQ_INFO_PWR( 600, 844, 100, 6000), 759 FREQ_INFO_PWR( 400, 844, 100, 5000), 760 FREQ_INFO(0, 0, 1), 761}; 762static freq_info C7M_754[] = { 763 /* 1.50GHz Centaur C7-M 400 Mhz FSB */ 764 FREQ_INFO_PWR(1500, 1004, 100, 12000), 765 FREQ_INFO_PWR(1400, 988, 100, 11000), 766 FREQ_INFO_PWR(1000, 940, 100, 9000), 767 FREQ_INFO_PWR( 800, 844, 100, 7000), 768 FREQ_INFO_PWR( 600, 844, 100, 6000), 769 FREQ_INFO_PWR( 400, 844, 100, 5000), 770 FREQ_INFO(0, 0, 1), 771}; 772static freq_info C7M_771[] = { 773 /* 1.20GHz Centaur C7-M 400 Mhz FSB */ 774 FREQ_INFO_PWR(1200, 860, 100, 7000), 775 FREQ_INFO_PWR(1000, 860, 100, 6000), 776 FREQ_INFO_PWR( 800, 844, 100, 5500), 777 FREQ_INFO_PWR( 600, 844, 100, 5000), 778 FREQ_INFO_PWR( 400, 844, 100, 4000), 779 FREQ_INFO(0, 0, 1), 780}; 781 782static freq_info C7M_775_ULV[] = { 783 /* 1.50GHz Centaur C7-M ULV */ 784 FREQ_INFO_PWR(1500, 956, 100, 7500), 785 FREQ_INFO_PWR(1400, 940, 100, 6000), 786 FREQ_INFO_PWR(1000, 860, 100, 5000), 787 FREQ_INFO_PWR( 800, 828, 100, 2800), 788 FREQ_INFO_PWR( 600, 796, 100, 2500), 789 FREQ_INFO_PWR( 400, 796, 100, 2000), 790 FREQ_INFO(0, 0, 1), 791}; 792static freq_info C7M_772_ULV[] = { 793 /* 1.20GHz Centaur C7-M ULV */ 794 FREQ_INFO_PWR(1200, 844, 100, 5000), 795 FREQ_INFO_PWR(1000, 844, 100, 4000), 796 FREQ_INFO_PWR( 800, 828, 100, 2800), 797 FREQ_INFO_PWR( 600, 796, 100, 2500), 798 FREQ_INFO_PWR( 400, 796, 100, 2000), 799 FREQ_INFO(0, 0, 1), 800}; 801static freq_info C7M_779_ULV[] = { 802 /* 1.00GHz Centaur C7-M ULV */ 803 FREQ_INFO_PWR(1000, 796, 100, 3500), 804 FREQ_INFO_PWR( 800, 796, 100, 2800), 805 FREQ_INFO_PWR( 600, 796, 100, 2500), 806 FREQ_INFO_PWR( 400, 796, 100, 2000), 807 FREQ_INFO(0, 0, 1), 808}; 809static freq_info C7M_770_ULV[] = { 810 /* 1.00GHz Centaur C7-M ULV */ 811 FREQ_INFO_PWR(1000, 844, 100, 5000), 812 FREQ_INFO_PWR( 800, 796, 100, 2800), 813 FREQ_INFO_PWR( 600, 796, 100, 2500), 814 FREQ_INFO_PWR( 400, 796, 100, 2000), 815 FREQ_INFO(0, 0, 1), 816}; 817 818static cpu_info ESTprocs[] = { 819 INTEL(PM17_130, 1700, 1484, 600, 956, INTEL_BUS_CLK), 820 INTEL(PM16_130, 1600, 1484, 600, 956, INTEL_BUS_CLK), 821 INTEL(PM15_130, 1500, 1484, 600, 956, INTEL_BUS_CLK), 822 INTEL(PM14_130, 1400, 1484, 600, 956, INTEL_BUS_CLK), 823 INTEL(PM13_130, 1300, 1388, 600, 956, INTEL_BUS_CLK), 824 INTEL(PM13_LV_130, 1300, 1180, 600, 956, INTEL_BUS_CLK), 825 INTEL(PM12_LV_130, 1200, 1180, 600, 956, INTEL_BUS_CLK), 826 INTEL(PM11_LV_130, 1100, 1180, 600, 956, INTEL_BUS_CLK), 827 INTEL(PM11_ULV_130, 1100, 1004, 600, 844, INTEL_BUS_CLK), 828 INTEL(PM10_ULV_130, 1000, 1004, 600, 844, INTEL_BUS_CLK), 829 INTEL(PM_765A_90, 2100, 1340, 600, 988, INTEL_BUS_CLK), 830 INTEL(PM_765B_90, 2100, 1324, 600, 988, INTEL_BUS_CLK), 831 INTEL(PM_765C_90, 2100, 1308, 600, 988, INTEL_BUS_CLK), 832 INTEL(PM_765E_90, 2100, 1356, 600, 988, INTEL_BUS_CLK), 833 INTEL(PM_755A_90, 2000, 1340, 600, 988, INTEL_BUS_CLK), 834 INTEL(PM_755B_90, 2000, 1324, 600, 988, INTEL_BUS_CLK), 835 INTEL(PM_755C_90, 2000, 1308, 600, 988, INTEL_BUS_CLK), 836 INTEL(PM_755D_90, 2000, 1276, 600, 988, INTEL_BUS_CLK), 837 INTEL(PM_745A_90, 1800, 1340, 600, 988, INTEL_BUS_CLK), 838 INTEL(PM_745B_90, 1800, 1324, 600, 988, INTEL_BUS_CLK), 839 INTEL(PM_745C_90, 1800, 1308, 600, 988, INTEL_BUS_CLK), 840 INTEL(PM_745D_90, 1800, 1276, 600, 988, INTEL_BUS_CLK), 841 INTEL(PM_735A_90, 1700, 1340, 600, 988, INTEL_BUS_CLK), 842 INTEL(PM_735B_90, 1700, 1324, 600, 988, INTEL_BUS_CLK), 843 INTEL(PM_735C_90, 1700, 1308, 600, 988, INTEL_BUS_CLK), 844 INTEL(PM_735D_90, 1700, 1276, 600, 988, INTEL_BUS_CLK), 845 INTEL(PM_725A_90, 1600, 1340, 600, 988, INTEL_BUS_CLK), 846 INTEL(PM_725B_90, 1600, 1324, 600, 988, INTEL_BUS_CLK), 847 INTEL(PM_725C_90, 1600, 1308, 600, 988, INTEL_BUS_CLK), 848 INTEL(PM_725D_90, 1600, 1276, 600, 988, INTEL_BUS_CLK), 849 INTEL(PM_715A_90, 1500, 1340, 600, 988, INTEL_BUS_CLK), 850 INTEL(PM_715B_90, 1500, 1324, 600, 988, INTEL_BUS_CLK), 851 INTEL(PM_715C_90, 1500, 1308, 600, 988, INTEL_BUS_CLK), 852 INTEL(PM_715D_90, 1500, 1276, 600, 988, INTEL_BUS_CLK), 853 INTEL(PM_778_90, 1600, 1116, 600, 988, INTEL_BUS_CLK), 854 INTEL(PM_758_90, 1500, 1116, 600, 988, INTEL_BUS_CLK), 855 INTEL(PM_738_90, 1400, 1116, 600, 988, INTEL_BUS_CLK), 856 INTEL(PM_773G_90, 1300, 956, 600, 812, INTEL_BUS_CLK), 857 INTEL(PM_773H_90, 1300, 940, 600, 812, INTEL_BUS_CLK), 858 INTEL(PM_773I_90, 1300, 924, 600, 812, INTEL_BUS_CLK), 859 INTEL(PM_773J_90, 1300, 908, 600, 812, INTEL_BUS_CLK), 860 INTEL(PM_773K_90, 1300, 892, 600, 812, INTEL_BUS_CLK), 861 INTEL(PM_773L_90, 1300, 876, 600, 812, INTEL_BUS_CLK), 862 INTEL(PM_753G_90, 1200, 956, 600, 812, INTEL_BUS_CLK), 863 INTEL(PM_753H_90, 1200, 940, 600, 812, INTEL_BUS_CLK), 864 INTEL(PM_753I_90, 1200, 924, 600, 812, INTEL_BUS_CLK), 865 INTEL(PM_753J_90, 1200, 908, 600, 812, INTEL_BUS_CLK), 866 INTEL(PM_753K_90, 1200, 892, 600, 812, INTEL_BUS_CLK), 867 INTEL(PM_753L_90, 1200, 876, 600, 812, INTEL_BUS_CLK), 868 INTEL(PM_733JG_90, 1100, 956, 600, 812, INTEL_BUS_CLK), 869 INTEL(PM_733JH_90, 1100, 940, 600, 812, INTEL_BUS_CLK), 870 INTEL(PM_733JI_90, 1100, 924, 600, 812, INTEL_BUS_CLK), 871 INTEL(PM_733JJ_90, 1100, 908, 600, 812, INTEL_BUS_CLK), 872 INTEL(PM_733JK_90, 1100, 892, 600, 812, INTEL_BUS_CLK), 873 INTEL(PM_733JL_90, 1100, 876, 600, 812, INTEL_BUS_CLK), 874 INTEL(PM_733_90, 1100, 940, 600, 812, INTEL_BUS_CLK), 875 INTEL(PM_723_90, 1000, 940, 600, 812, INTEL_BUS_CLK), 876 877 CENTAUR(C7M_795, 2000, 1148, 533, 844, 133), 878 CENTAUR(C7M_794, 2000, 1148, 400, 844, 100), 879 CENTAUR(C7M_785, 1867, 1148, 533, 844, 133), 880 CENTAUR(C7M_784, 1800, 1148, 400, 844, 100), 881 CENTAUR(C7M_765, 1600, 1084, 533, 844, 133), 882 CENTAUR(C7M_764, 1600, 1084, 400, 844, 100), 883 CENTAUR(C7M_754, 1500, 1004, 400, 844, 100), 884 CENTAUR(C7M_775_ULV, 1500, 956, 400, 796, 100), 885 CENTAUR(C7M_771, 1200, 860, 400, 844, 100), 886 CENTAUR(C7M_772_ULV, 1200, 844, 400, 796, 100), 887 CENTAUR(C7M_779_ULV, 1000, 796, 400, 796, 100), 888 CENTAUR(C7M_770_ULV, 1000, 844, 400, 796, 100), 889 { NULL, 0, NULL }, 890}; 891 892static void est_identify(driver_t *driver, device_t parent); 893static int est_features(driver_t *driver, u_int *features); 894static int est_probe(device_t parent); 895static int est_attach(device_t parent); 896static int est_detach(device_t parent); 897static int est_get_info(device_t dev); 898static int est_acpi_info(device_t dev, freq_info **freqs); 899static int est_table_info(device_t dev, uint64_t msr, freq_info **freqs); 900static freq_info *est_get_current(freq_info *freq_list); 901static int est_settings(device_t dev, struct cf_setting *sets, int *count); 902static int est_set(device_t dev, const struct cf_setting *set); 903static int est_get(device_t dev, struct cf_setting *set); 904static int est_type(device_t dev, int *type); 905 906static device_method_t est_methods[] = { 907 /* Device interface */ 908 DEVMETHOD(device_identify, est_identify), 909 DEVMETHOD(device_probe, est_probe), 910 DEVMETHOD(device_attach, est_attach), 911 DEVMETHOD(device_detach, est_detach), 912 913 /* cpufreq interface */ 914 DEVMETHOD(cpufreq_drv_set, est_set), 915 DEVMETHOD(cpufreq_drv_get, est_get), 916 DEVMETHOD(cpufreq_drv_type, est_type), 917 DEVMETHOD(cpufreq_drv_settings, est_settings), 918 919 /* ACPI interface */ 920 DEVMETHOD(acpi_get_features, est_features), 921 922 {0, 0} 923}; 924 925static driver_t est_driver = { 926 "est", 927 est_methods, 928 sizeof(struct est_softc), 929}; 930 931static devclass_t est_devclass; 932DRIVER_MODULE(est, cpu, est_driver, est_devclass, 0, 0); 933 934static int 935est_features(driver_t *driver, u_int *features) 936{ 937 938 /* Notify the ACPI CPU that we support direct access to MSRs */ 939 *features = ACPI_CAP_PERF_MSRS; 940 return (0); 941} 942 943static void 944est_identify(driver_t *driver, device_t parent) 945{ 946 device_t child; 947 u_int p[4]; 948 949 /* Make sure we're not being doubly invoked. */ 950 if (device_find_child(parent, "est", -1) != NULL) 951 return; 952 953 /* Check that CPUID is supported and the vendor is Intel.*/ 954 if (cpu_high == 0 || (strcmp(cpu_vendor, intel_id) != 0 && 955 strcmp(cpu_vendor, centaur_id) != 0)) 956 return; 957 958 /* 959 * Read capability bits and check if the CPU supports EST. 960 * This is indicated by bit 7 of ECX. 961 */ 962 do_cpuid(1, p); 963 if ((p[2] & 0x80) == 0) 964 return; 965 966 /* 967 * We add a child for each CPU since settings must be performed 968 * on each CPU in the SMP case. 969 */ 970 child = BUS_ADD_CHILD(parent, 0, "est", -1); 971 if (child == NULL) 972 device_printf(parent, "add est child failed\n"); 973} 974 975static int 976est_probe(device_t dev) 977{ 978 device_t perf_dev; 979 uint64_t msr; 980 int error, type; 981 982 if (resource_disabled("est", 0)) 983 return (ENXIO); 984 985 /* 986 * If the ACPI perf driver has attached and is not just offering 987 * info, let it manage things. 988 */ 989 perf_dev = device_find_child(device_get_parent(dev), "acpi_perf", -1); 990 if (perf_dev && device_is_attached(perf_dev)) { 991 error = CPUFREQ_DRV_TYPE(perf_dev, &type); 992 if (error == 0 && (type & CPUFREQ_FLAG_INFO_ONLY) == 0) 993 return (ENXIO); 994 } 995 996 /* Attempt to enable SpeedStep if not currently enabled. */ 997 msr = rdmsr(MSR_MISC_ENABLE); 998 if ((msr & MSR_SS_ENABLE) == 0) { 999 wrmsr(MSR_MISC_ENABLE, msr | MSR_SS_ENABLE); 1000 if (bootverbose) 1001 device_printf(dev, "enabling SpeedStep\n"); 1002 1003 /* Check if the enable failed. */ 1004 msr = rdmsr(MSR_MISC_ENABLE); 1005 if ((msr & MSR_SS_ENABLE) == 0) { 1006 device_printf(dev, "failed to enable SpeedStep\n"); 1007 return (ENXIO); 1008 } 1009 } 1010 1011 device_set_desc(dev, "Enhanced SpeedStep Frequency Control"); 1012 return (0); 1013} 1014 1015static int 1016est_attach(device_t dev) 1017{ 1018 struct est_softc *sc; 1019 1020 sc = device_get_softc(dev); 1021 sc->dev = dev; 1022 1023 /* Check CPU for supported settings. */ 1024 if (est_get_info(dev)) 1025 return (ENXIO); 1026 1027 cpufreq_register(dev); 1028 return (0); 1029} 1030 1031static int 1032est_detach(device_t dev) 1033{ 1034 struct est_softc *sc; 1035 1036 sc = device_get_softc(dev); 1037 if (sc->acpi_settings) 1038 free(sc->freq_list, M_DEVBUF); 1039 return (ENXIO); 1040} 1041 1042/* 1043 * Probe for supported CPU settings. First, check our static table of 1044 * settings. If no match, try using the ones offered by acpi_perf 1045 * (i.e., _PSS). We use ACPI second because some systems (IBM R/T40 1046 * series) export both legacy SMM IO-based access and direct MSR access 1047 * but the direct access specifies invalid values for _PSS. 1048 */ 1049static int 1050est_get_info(device_t dev) 1051{ 1052 struct est_softc *sc; 1053 uint64_t msr; 1054 int error; 1055 1056 sc = device_get_softc(dev); 1057 msr = rdmsr(MSR_PERF_STATUS); 1058 error = est_table_info(dev, msr, &sc->freq_list); 1059 if (error) 1060 error = est_acpi_info(dev, &sc->freq_list); 1061 1062 if (error) { 1063 printf( 1064 "est: CPU supports Enhanced Speedstep, but is not recognized.\n" 1065 "est: cpu_vendor %s, msr %0jx\n", cpu_vendor, msr); 1066 return (ENXIO); 1067 } 1068 1069 return (0); 1070} 1071 1072static int 1073est_acpi_info(device_t dev, freq_info **freqs) 1074{ 1075 struct est_softc *sc; 1076 struct cf_setting *sets; 1077 freq_info *table; 1078 device_t perf_dev; 1079 int count, error, i; 1080 1081 perf_dev = device_find_child(device_get_parent(dev), "acpi_perf", -1); 1082 if (perf_dev == NULL || !device_is_attached(perf_dev)) 1083 return (ENXIO); 1084 1085 /* Fetch settings from acpi_perf. */ 1086 sc = device_get_softc(dev); 1087 table = NULL; 1088 sets = malloc(MAX_SETTINGS * sizeof(*sets), M_TEMP, M_NOWAIT); 1089 if (sets == NULL) 1090 return (ENOMEM); 1091 error = CPUFREQ_DRV_SETTINGS(perf_dev, sets, &count); 1092 if (error) 1093 goto out; 1094 1095 /* Parse settings into our local table format. */ 1096 table = malloc((count + 1) * sizeof(freq_info), M_DEVBUF, M_NOWAIT); 1097 if (table == NULL) { 1098 error = ENOMEM; 1099 goto out; 1100 } 1101 for (i = 0; i < count; i++) { 1102 /* 1103 * TODO: Figure out validity checks for id16. Linux checks 1104 * that the control and status values match. 1105 */ 1106 table[i].freq = sets[i].freq; 1107 table[i].volts = sets[i].volts; 1108 table[i].id16 = sets[i].spec[0]; 1109 table[i].power = sets[i].power; 1110 } 1111 1112 /* Mark end of table with a terminator. */ 1113 bzero(&table[i], sizeof(freq_info)); 1114 1115 sc->acpi_settings = TRUE; 1116 *freqs = table; 1117 error = 0; 1118 1119out: 1120 if (sets) 1121 free(sets, M_TEMP); 1122 if (error && table) 1123 free(table, M_DEVBUF); 1124 return (error); 1125} 1126 1127static int 1128est_table_info(device_t dev, uint64_t msr, freq_info **freqs) 1129{ 1130 cpu_info *p; 1131 uint32_t id; 1132 1133 /* Find a table which matches (vendor, id32). */ 1134 id = msr >> 32; 1135 for (p = ESTprocs; p->id32 != 0; p++) { 1136 if (strcmp(p->vendor, cpu_vendor) == 0 && p->id32 == id) 1137 break; 1138 } 1139 if (p->id32 == 0) 1140 return (EOPNOTSUPP); 1141 1142 /* Make sure the current setpoint is valid. */ 1143 if (est_get_current(p->freqtab) == NULL) { 1144 device_printf(dev, "current setting not found in table\n"); 1145 return (EOPNOTSUPP); 1146 } 1147 1148 *freqs = p->freqtab; 1149 return (0); 1150} 1151 1152static freq_info * 1153est_get_current(freq_info *freq_list) 1154{ 1155 freq_info *f; 1156 int i; 1157 uint16_t id16; 1158 1159 /* 1160 * Try a few times to get a valid value. Sometimes, if the CPU 1161 * is in the middle of an asynchronous transition (i.e., P4TCC), 1162 * we get a temporary invalid result. 1163 */ 1164 for (i = 0; i < 5; i++) { 1165 id16 = rdmsr(MSR_PERF_STATUS) & 0xffff; 1166 for (f = freq_list; f->id16 != 0; f++) { 1167 if (f->id16 == id16) 1168 return (f); 1169 } 1170 DELAY(100); 1171 } 1172 return (NULL); 1173} 1174 1175static int 1176est_settings(device_t dev, struct cf_setting *sets, int *count) 1177{ 1178 struct est_softc *sc; 1179 freq_info *f; 1180 int i; 1181 1182 sc = device_get_softc(dev); 1183 if (*count < EST_MAX_SETTINGS) 1184 return (E2BIG); 1185 1186 i = 0; 1187 for (f = sc->freq_list; f->freq != 0; f++, i++) { 1188 sets[i].freq = f->freq; 1189 sets[i].volts = f->volts; 1190 sets[i].power = f->power; 1191 sets[i].lat = EST_TRANS_LAT; 1192 sets[i].dev = dev; 1193 } 1194 *count = i; 1195 1196 return (0); 1197} 1198 1199static int 1200est_set(device_t dev, const struct cf_setting *set) 1201{ 1202 struct est_softc *sc; 1203 freq_info *f; 1204 uint64_t msr; 1205 1206 /* Find the setting matching the requested one. */ 1207 sc = device_get_softc(dev); 1208 for (f = sc->freq_list; f->freq != 0; f++) { 1209 if (f->freq == set->freq) 1210 break; 1211 } 1212 if (f->freq == 0) 1213 return (EINVAL); 1214 1215 /* Read the current register, mask out the old, set the new id. */ 1216 msr = rdmsr(MSR_PERF_CTL); 1217 msr = (msr & ~0xffff) | f->id16; 1218 wrmsr(MSR_PERF_CTL, msr); 1219 1220 /* Wait a short while for the new setting. XXX Is this necessary? */ 1221 DELAY(EST_TRANS_LAT); 1222 1223 return (0); 1224} 1225 1226static int 1227est_get(device_t dev, struct cf_setting *set) 1228{ 1229 struct est_softc *sc; 1230 freq_info *f; 1231 1232 sc = device_get_softc(dev); 1233 f = est_get_current(sc->freq_list); 1234 if (f == NULL) 1235 return (ENXIO); 1236 1237 set->freq = f->freq; 1238 set->volts = f->volts; 1239 set->power = f->power; 1240 set->lat = EST_TRANS_LAT; 1241 set->dev = dev; 1242 return (0); 1243} 1244 1245static int 1246est_type(device_t dev, int *type) 1247{ 1248 1249 if (type == NULL) 1250 return (EINVAL); 1251 1252 *type = CPUFREQ_TYPE_ABSOLUTE; 1253 return (0); 1254} 1255