2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2004 Colin Percival
5 * Copyright (c) 2005 Nate Lawson
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted providing that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
36 #include <sys/kernel.h>
37 #include <sys/malloc.h>
38 #include <sys/module.h>
40 #include <sys/systm.h>
42 #include "cpufreq_if.h"
43 #include <machine/clock.h>
44 #include <machine/cputypes.h>
45 #include <machine/md_var.h>
46 #include <machine/specialreg.h>
48 #include <contrib/dev/acpica/include/acpi.h>
50 #include <dev/acpica/acpivar.h>
53 /* Status/control registers (from the IA-32 System Programming Guide). */
54 #define MSR_PERF_STATUS 0x198
55 #define MSR_PERF_CTL 0x199
57 /* Register and bit for enabling SpeedStep. */
58 #define MSR_MISC_ENABLE 0x1a0
59 #define MSR_SS_ENABLE (1<<16)
61 /* Frequency and MSR control values. */
69 /* Identifying characteristics of a processor and supported frequencies. */
71 const u_int vendor_id;
85 /* Convert MHz and mV into IDs for passing to the MSR. */
86 #define ID16(MHz, mV, bus_clk) \
87 (((MHz / bus_clk) << 8) | ((mV ? mV - 700 : 0) >> 4))
88 #define ID32(MHz_hi, mV_hi, MHz_lo, mV_lo, bus_clk) \
89 ((ID16(MHz_lo, mV_lo, bus_clk) << 16) | (ID16(MHz_hi, mV_hi, bus_clk)))
91 /* Format for storing IDs in our table. */
92 #define FREQ_INFO_PWR(MHz, mV, bus_clk, mW) \
93 { MHz, mV, ID16(MHz, mV, bus_clk), mW }
94 #define FREQ_INFO(MHz, mV, bus_clk) \
95 FREQ_INFO_PWR(MHz, mV, bus_clk, CPUFREQ_VAL_UNKNOWN)
96 #define INTEL(tab, zhi, vhi, zlo, vlo, bus_clk) \
97 { CPU_VENDOR_INTEL, ID32(zhi, vhi, zlo, vlo, bus_clk), tab, nitems(tab) }
98 #define CENTAUR(tab, zhi, vhi, zlo, vlo, bus_clk) \
99 { CPU_VENDOR_CENTAUR, ID32(zhi, vhi, zlo, vlo, bus_clk), tab, nitems(tab) }
101 static int msr_info_enabled = 0;
102 TUNABLE_INT("hw.est.msr_info", &msr_info_enabled);
103 static int strict = -1;
104 TUNABLE_INT("hw.est.strict", &strict);
106 /* Default bus clock value for Centrino processors. */
107 #define INTEL_BUS_CLK 100
109 /* XXX Update this if new CPUs have more settings. */
110 #define EST_MAX_SETTINGS 10
111 CTASSERT(EST_MAX_SETTINGS <= MAX_SETTINGS);
113 /* Estimate in microseconds of latency for performing a transition. */
114 #define EST_TRANS_LAT 1000
117 * Frequency (MHz) and voltage (mV) settings.
119 * Dothan processors have multiple VID#s with different settings for
120 * each VID#. Since we can't uniquely identify this info
121 * without undisclosed methods from Intel, we can't support newer
122 * processors with this table method. If ACPI Px states are supported,
123 * we get info from them.
125 * Data from the "Intel Pentium M Processor Datasheet",
126 * Order Number 252612-003, Table 5.
128 static freq_info PM17_130[] = {
129 /* 130nm 1.70GHz Pentium M */
130 FREQ_INFO(1700, 1484, INTEL_BUS_CLK),
131 FREQ_INFO(1400, 1308, INTEL_BUS_CLK),
132 FREQ_INFO(1200, 1228, INTEL_BUS_CLK),
133 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
134 FREQ_INFO( 800, 1004, INTEL_BUS_CLK),
135 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
137 static freq_info PM16_130[] = {
138 /* 130nm 1.60GHz Pentium M */
139 FREQ_INFO(1600, 1484, INTEL_BUS_CLK),
140 FREQ_INFO(1400, 1420, INTEL_BUS_CLK),
141 FREQ_INFO(1200, 1276, INTEL_BUS_CLK),
142 FREQ_INFO(1000, 1164, INTEL_BUS_CLK),
143 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
144 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
146 static freq_info PM15_130[] = {
147 /* 130nm 1.50GHz Pentium M */
148 FREQ_INFO(1500, 1484, INTEL_BUS_CLK),
149 FREQ_INFO(1400, 1452, INTEL_BUS_CLK),
150 FREQ_INFO(1200, 1356, INTEL_BUS_CLK),
151 FREQ_INFO(1000, 1228, INTEL_BUS_CLK),
152 FREQ_INFO( 800, 1116, INTEL_BUS_CLK),
153 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
155 static freq_info PM14_130[] = {
156 /* 130nm 1.40GHz Pentium M */
157 FREQ_INFO(1400, 1484, INTEL_BUS_CLK),
158 FREQ_INFO(1200, 1436, INTEL_BUS_CLK),
159 FREQ_INFO(1000, 1308, INTEL_BUS_CLK),
160 FREQ_INFO( 800, 1180, INTEL_BUS_CLK),
161 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
163 static freq_info PM13_130[] = {
164 /* 130nm 1.30GHz Pentium M */
165 FREQ_INFO(1300, 1388, INTEL_BUS_CLK),
166 FREQ_INFO(1200, 1356, INTEL_BUS_CLK),
167 FREQ_INFO(1000, 1292, INTEL_BUS_CLK),
168 FREQ_INFO( 800, 1260, INTEL_BUS_CLK),
169 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
171 static freq_info PM13_LV_130[] = {
172 /* 130nm 1.30GHz Low Voltage Pentium M */
173 FREQ_INFO(1300, 1180, INTEL_BUS_CLK),
174 FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
175 FREQ_INFO(1100, 1100, INTEL_BUS_CLK),
176 FREQ_INFO(1000, 1020, INTEL_BUS_CLK),
177 FREQ_INFO( 900, 1004, INTEL_BUS_CLK),
178 FREQ_INFO( 800, 988, INTEL_BUS_CLK),
179 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
181 static freq_info PM12_LV_130[] = {
182 /* 130 nm 1.20GHz Low Voltage Pentium M */
183 FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
184 FREQ_INFO(1100, 1164, INTEL_BUS_CLK),
185 FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
186 FREQ_INFO( 900, 1020, INTEL_BUS_CLK),
187 FREQ_INFO( 800, 1004, INTEL_BUS_CLK),
188 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
190 static freq_info PM11_LV_130[] = {
191 /* 130 nm 1.10GHz Low Voltage Pentium M */
192 FREQ_INFO(1100, 1180, INTEL_BUS_CLK),
193 FREQ_INFO(1000, 1164, INTEL_BUS_CLK),
194 FREQ_INFO( 900, 1100, INTEL_BUS_CLK),
195 FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
196 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
198 static freq_info PM11_ULV_130[] = {
199 /* 130 nm 1.10GHz Ultra Low Voltage Pentium M */
200 FREQ_INFO(1100, 1004, INTEL_BUS_CLK),
201 FREQ_INFO(1000, 988, INTEL_BUS_CLK),
202 FREQ_INFO( 900, 972, INTEL_BUS_CLK),
203 FREQ_INFO( 800, 956, INTEL_BUS_CLK),
204 FREQ_INFO( 600, 844, INTEL_BUS_CLK),
206 static freq_info PM10_ULV_130[] = {
207 /* 130 nm 1.00GHz Ultra Low Voltage Pentium M */
208 FREQ_INFO(1000, 1004, INTEL_BUS_CLK),
209 FREQ_INFO( 900, 988, INTEL_BUS_CLK),
210 FREQ_INFO( 800, 972, INTEL_BUS_CLK),
211 FREQ_INFO( 600, 844, INTEL_BUS_CLK),
215 * Data from "Intel Pentium M Processor on 90nm Process with
216 * 2-MB L2 Cache Datasheet", Order Number 302189-008, Table 5.
218 static freq_info PM_765A_90[] = {
219 /* 90 nm 2.10GHz Pentium M, VID #A */
220 FREQ_INFO(2100, 1340, INTEL_BUS_CLK),
221 FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
222 FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
223 FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
224 FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
225 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
226 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
227 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
229 static freq_info PM_765B_90[] = {
230 /* 90 nm 2.10GHz Pentium M, VID #B */
231 FREQ_INFO(2100, 1324, INTEL_BUS_CLK),
232 FREQ_INFO(1800, 1260, INTEL_BUS_CLK),
233 FREQ_INFO(1600, 1212, INTEL_BUS_CLK),
234 FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
235 FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
236 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
237 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
238 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
240 static freq_info PM_765C_90[] = {
241 /* 90 nm 2.10GHz Pentium M, VID #C */
242 FREQ_INFO(2100, 1308, INTEL_BUS_CLK),
243 FREQ_INFO(1800, 1244, INTEL_BUS_CLK),
244 FREQ_INFO(1600, 1212, INTEL_BUS_CLK),
245 FREQ_INFO(1400, 1164, INTEL_BUS_CLK),
246 FREQ_INFO(1200, 1116, INTEL_BUS_CLK),
247 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
248 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
249 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
251 static 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),
262 static freq_info PM_755A_90[] = {
263 /* 90 nm 2.00GHz Pentium M, VID #A */
264 FREQ_INFO(2000, 1340, INTEL_BUS_CLK),
265 FREQ_INFO(1800, 1292, INTEL_BUS_CLK),
266 FREQ_INFO(1600, 1244, INTEL_BUS_CLK),
267 FREQ_INFO(1400, 1196, INTEL_BUS_CLK),
268 FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
269 FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
270 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
271 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
273 static freq_info PM_755B_90[] = {
274 /* 90 nm 2.00GHz Pentium M, VID #B */
275 FREQ_INFO(2000, 1324, INTEL_BUS_CLK),
276 FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
277 FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
278 FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
279 FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
280 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
281 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
282 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
284 static freq_info PM_755C_90[] = {
285 /* 90 nm 2.00GHz Pentium M, VID #C */
286 FREQ_INFO(2000, 1308, INTEL_BUS_CLK),
287 FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
288 FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
289 FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
290 FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
291 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
292 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
293 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
295 static freq_info PM_755D_90[] = {
296 /* 90 nm 2.00GHz Pentium M, VID #D */
297 FREQ_INFO(2000, 1276, INTEL_BUS_CLK),
298 FREQ_INFO(1800, 1244, INTEL_BUS_CLK),
299 FREQ_INFO(1600, 1196, INTEL_BUS_CLK),
300 FREQ_INFO(1400, 1164, INTEL_BUS_CLK),
301 FREQ_INFO(1200, 1116, INTEL_BUS_CLK),
302 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
303 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
304 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
306 static freq_info PM_745A_90[] = {
307 /* 90 nm 1.80GHz Pentium M, VID #A */
308 FREQ_INFO(1800, 1340, INTEL_BUS_CLK),
309 FREQ_INFO(1600, 1292, INTEL_BUS_CLK),
310 FREQ_INFO(1400, 1228, INTEL_BUS_CLK),
311 FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
312 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
313 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
314 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
316 static freq_info PM_745B_90[] = {
317 /* 90 nm 1.80GHz Pentium M, VID #B */
318 FREQ_INFO(1800, 1324, INTEL_BUS_CLK),
319 FREQ_INFO(1600, 1276, INTEL_BUS_CLK),
320 FREQ_INFO(1400, 1212, INTEL_BUS_CLK),
321 FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
322 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
323 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
324 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
326 static freq_info PM_745C_90[] = {
327 /* 90 nm 1.80GHz Pentium M, VID #C */
328 FREQ_INFO(1800, 1308, INTEL_BUS_CLK),
329 FREQ_INFO(1600, 1260, INTEL_BUS_CLK),
330 FREQ_INFO(1400, 1212, INTEL_BUS_CLK),
331 FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
332 FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
333 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
334 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
336 static freq_info PM_745D_90[] = {
337 /* 90 nm 1.80GHz Pentium M, VID #D */
338 FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
339 FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
340 FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
341 FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
342 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
343 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
344 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
346 static freq_info PM_735A_90[] = {
347 /* 90 nm 1.70GHz Pentium M, VID #A */
348 FREQ_INFO(1700, 1340, INTEL_BUS_CLK),
349 FREQ_INFO(1400, 1244, INTEL_BUS_CLK),
350 FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
351 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
352 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
353 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
355 static freq_info PM_735B_90[] = {
356 /* 90 nm 1.70GHz Pentium M, VID #B */
357 FREQ_INFO(1700, 1324, 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),
364 static freq_info PM_735C_90[] = {
365 /* 90 nm 1.70GHz Pentium M, VID #C */
366 FREQ_INFO(1700, 1308, INTEL_BUS_CLK),
367 FREQ_INFO(1400, 1228, INTEL_BUS_CLK),
368 FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
369 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
370 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
371 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
373 static freq_info PM_735D_90[] = {
374 /* 90 nm 1.70GHz Pentium M, VID #D */
375 FREQ_INFO(1700, 1276, INTEL_BUS_CLK),
376 FREQ_INFO(1400, 1212, INTEL_BUS_CLK),
377 FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
378 FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
379 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
380 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
382 static freq_info PM_725A_90[] = {
383 /* 90 nm 1.60GHz Pentium M, VID #A */
384 FREQ_INFO(1600, 1340, INTEL_BUS_CLK),
385 FREQ_INFO(1400, 1276, INTEL_BUS_CLK),
386 FREQ_INFO(1200, 1212, INTEL_BUS_CLK),
387 FREQ_INFO(1000, 1132, INTEL_BUS_CLK),
388 FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
389 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
391 static freq_info PM_725B_90[] = {
392 /* 90 nm 1.60GHz Pentium M, VID #B */
393 FREQ_INFO(1600, 1324, INTEL_BUS_CLK),
394 FREQ_INFO(1400, 1260, INTEL_BUS_CLK),
395 FREQ_INFO(1200, 1196, INTEL_BUS_CLK),
396 FREQ_INFO(1000, 1132, INTEL_BUS_CLK),
397 FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
398 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
400 static freq_info PM_725C_90[] = {
401 /* 90 nm 1.60GHz Pentium M, VID #C */
402 FREQ_INFO(1600, 1308, INTEL_BUS_CLK),
403 FREQ_INFO(1400, 1244, INTEL_BUS_CLK),
404 FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
405 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
406 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
407 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
409 static freq_info PM_725D_90[] = {
410 /* 90 nm 1.60GHz Pentium M, VID #D */
411 FREQ_INFO(1600, 1276, INTEL_BUS_CLK),
412 FREQ_INFO(1400, 1228, INTEL_BUS_CLK),
413 FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
414 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
415 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
416 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
418 static freq_info PM_715A_90[] = {
419 /* 90 nm 1.50GHz Pentium M, VID #A */
420 FREQ_INFO(1500, 1340, INTEL_BUS_CLK),
421 FREQ_INFO(1200, 1228, INTEL_BUS_CLK),
422 FREQ_INFO(1000, 1148, INTEL_BUS_CLK),
423 FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
424 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
426 static freq_info PM_715B_90[] = {
427 /* 90 nm 1.50GHz Pentium M, VID #B */
428 FREQ_INFO(1500, 1324, INTEL_BUS_CLK),
429 FREQ_INFO(1200, 1212, INTEL_BUS_CLK),
430 FREQ_INFO(1000, 1148, INTEL_BUS_CLK),
431 FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
432 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
434 static freq_info PM_715C_90[] = {
435 /* 90 nm 1.50GHz Pentium M, VID #C */
436 FREQ_INFO(1500, 1308, INTEL_BUS_CLK),
437 FREQ_INFO(1200, 1212, INTEL_BUS_CLK),
438 FREQ_INFO(1000, 1132, INTEL_BUS_CLK),
439 FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
440 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
442 static freq_info PM_715D_90[] = {
443 /* 90 nm 1.50GHz Pentium M, VID #D */
444 FREQ_INFO(1500, 1276, INTEL_BUS_CLK),
445 FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
446 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
447 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
448 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
450 static freq_info PM_778_90[] = {
451 /* 90 nm 1.60GHz Low Voltage Pentium M */
452 FREQ_INFO(1600, 1116, INTEL_BUS_CLK),
453 FREQ_INFO(1500, 1116, INTEL_BUS_CLK),
454 FREQ_INFO(1400, 1100, INTEL_BUS_CLK),
455 FREQ_INFO(1300, 1084, INTEL_BUS_CLK),
456 FREQ_INFO(1200, 1068, INTEL_BUS_CLK),
457 FREQ_INFO(1100, 1052, INTEL_BUS_CLK),
458 FREQ_INFO(1000, 1052, INTEL_BUS_CLK),
459 FREQ_INFO( 900, 1036, INTEL_BUS_CLK),
460 FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
461 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
463 static freq_info PM_758_90[] = {
464 /* 90 nm 1.50GHz Low Voltage Pentium M */
465 FREQ_INFO(1500, 1116, INTEL_BUS_CLK),
466 FREQ_INFO(1400, 1116, INTEL_BUS_CLK),
467 FREQ_INFO(1300, 1100, INTEL_BUS_CLK),
468 FREQ_INFO(1200, 1084, INTEL_BUS_CLK),
469 FREQ_INFO(1100, 1068, INTEL_BUS_CLK),
470 FREQ_INFO(1000, 1052, INTEL_BUS_CLK),
471 FREQ_INFO( 900, 1036, INTEL_BUS_CLK),
472 FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
473 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
475 static freq_info PM_738_90[] = {
476 /* 90 nm 1.40GHz Low Voltage Pentium M */
477 FREQ_INFO(1400, 1116, INTEL_BUS_CLK),
478 FREQ_INFO(1300, 1116, INTEL_BUS_CLK),
479 FREQ_INFO(1200, 1100, INTEL_BUS_CLK),
480 FREQ_INFO(1100, 1068, INTEL_BUS_CLK),
481 FREQ_INFO(1000, 1052, INTEL_BUS_CLK),
482 FREQ_INFO( 900, 1036, INTEL_BUS_CLK),
483 FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
484 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
486 static freq_info PM_773G_90[] = {
487 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #G */
488 FREQ_INFO(1300, 956, INTEL_BUS_CLK),
489 FREQ_INFO(1200, 940, INTEL_BUS_CLK),
490 FREQ_INFO(1100, 924, INTEL_BUS_CLK),
491 FREQ_INFO(1000, 908, INTEL_BUS_CLK),
492 FREQ_INFO( 900, 876, INTEL_BUS_CLK),
493 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
494 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
496 static freq_info PM_773H_90[] = {
497 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #H */
498 FREQ_INFO(1300, 940, INTEL_BUS_CLK),
499 FREQ_INFO(1200, 924, INTEL_BUS_CLK),
500 FREQ_INFO(1100, 908, INTEL_BUS_CLK),
501 FREQ_INFO(1000, 892, INTEL_BUS_CLK),
502 FREQ_INFO( 900, 876, INTEL_BUS_CLK),
503 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
504 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
506 static freq_info PM_773I_90[] = {
507 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #I */
508 FREQ_INFO(1300, 924, INTEL_BUS_CLK),
509 FREQ_INFO(1200, 908, INTEL_BUS_CLK),
510 FREQ_INFO(1100, 892, INTEL_BUS_CLK),
511 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
512 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
513 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
514 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
516 static freq_info PM_773J_90[] = {
517 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #J */
518 FREQ_INFO(1300, 908, INTEL_BUS_CLK),
519 FREQ_INFO(1200, 908, INTEL_BUS_CLK),
520 FREQ_INFO(1100, 892, INTEL_BUS_CLK),
521 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
522 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
523 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
524 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
526 static freq_info PM_773K_90[] = {
527 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #K */
528 FREQ_INFO(1300, 892, INTEL_BUS_CLK),
529 FREQ_INFO(1200, 892, INTEL_BUS_CLK),
530 FREQ_INFO(1100, 876, INTEL_BUS_CLK),
531 FREQ_INFO(1000, 860, INTEL_BUS_CLK),
532 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
533 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
534 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
536 static freq_info PM_773L_90[] = {
537 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #L */
538 FREQ_INFO(1300, 876, INTEL_BUS_CLK),
539 FREQ_INFO(1200, 876, INTEL_BUS_CLK),
540 FREQ_INFO(1100, 860, INTEL_BUS_CLK),
541 FREQ_INFO(1000, 860, INTEL_BUS_CLK),
542 FREQ_INFO( 900, 844, INTEL_BUS_CLK),
543 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
544 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
546 static freq_info PM_753G_90[] = {
547 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #G */
548 FREQ_INFO(1200, 956, INTEL_BUS_CLK),
549 FREQ_INFO(1100, 940, INTEL_BUS_CLK),
550 FREQ_INFO(1000, 908, INTEL_BUS_CLK),
551 FREQ_INFO( 900, 892, INTEL_BUS_CLK),
552 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
553 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
555 static freq_info PM_753H_90[] = {
556 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #H */
557 FREQ_INFO(1200, 940, INTEL_BUS_CLK),
558 FREQ_INFO(1100, 924, INTEL_BUS_CLK),
559 FREQ_INFO(1000, 908, INTEL_BUS_CLK),
560 FREQ_INFO( 900, 876, INTEL_BUS_CLK),
561 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
562 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
564 static freq_info PM_753I_90[] = {
565 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #I */
566 FREQ_INFO(1200, 924, INTEL_BUS_CLK),
567 FREQ_INFO(1100, 908, INTEL_BUS_CLK),
568 FREQ_INFO(1000, 892, INTEL_BUS_CLK),
569 FREQ_INFO( 900, 876, INTEL_BUS_CLK),
570 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
571 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
573 static freq_info PM_753J_90[] = {
574 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #J */
575 FREQ_INFO(1200, 908, INTEL_BUS_CLK),
576 FREQ_INFO(1100, 892, INTEL_BUS_CLK),
577 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
578 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
579 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
580 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
582 static freq_info PM_753K_90[] = {
583 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #K */
584 FREQ_INFO(1200, 892, INTEL_BUS_CLK),
585 FREQ_INFO(1100, 892, INTEL_BUS_CLK),
586 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
587 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
588 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
589 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
591 static freq_info PM_753L_90[] = {
592 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #L */
593 FREQ_INFO(1200, 876, INTEL_BUS_CLK),
594 FREQ_INFO(1100, 876, INTEL_BUS_CLK),
595 FREQ_INFO(1000, 860, INTEL_BUS_CLK),
596 FREQ_INFO( 900, 844, INTEL_BUS_CLK),
597 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
598 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
601 static freq_info PM_733JG_90[] = {
602 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #G */
603 FREQ_INFO(1100, 956, INTEL_BUS_CLK),
604 FREQ_INFO(1000, 940, INTEL_BUS_CLK),
605 FREQ_INFO( 900, 908, INTEL_BUS_CLK),
606 FREQ_INFO( 800, 876, INTEL_BUS_CLK),
607 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
609 static freq_info PM_733JH_90[] = {
610 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #H */
611 FREQ_INFO(1100, 940, INTEL_BUS_CLK),
612 FREQ_INFO(1000, 924, INTEL_BUS_CLK),
613 FREQ_INFO( 900, 892, INTEL_BUS_CLK),
614 FREQ_INFO( 800, 876, INTEL_BUS_CLK),
615 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
617 static freq_info PM_733JI_90[] = {
618 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #I */
619 FREQ_INFO(1100, 924, INTEL_BUS_CLK),
620 FREQ_INFO(1000, 908, INTEL_BUS_CLK),
621 FREQ_INFO( 900, 892, INTEL_BUS_CLK),
622 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
623 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
625 static freq_info PM_733JJ_90[] = {
626 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #J */
627 FREQ_INFO(1100, 908, INTEL_BUS_CLK),
628 FREQ_INFO(1000, 892, INTEL_BUS_CLK),
629 FREQ_INFO( 900, 876, INTEL_BUS_CLK),
630 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
631 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
633 static freq_info PM_733JK_90[] = {
634 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #K */
635 FREQ_INFO(1100, 892, INTEL_BUS_CLK),
636 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
637 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
638 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
639 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
641 static freq_info PM_733JL_90[] = {
642 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #L */
643 FREQ_INFO(1100, 876, INTEL_BUS_CLK),
644 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
645 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
646 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
647 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
649 static freq_info PM_733_90[] = {
650 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M */
651 FREQ_INFO(1100, 940, INTEL_BUS_CLK),
652 FREQ_INFO(1000, 924, INTEL_BUS_CLK),
653 FREQ_INFO( 900, 892, INTEL_BUS_CLK),
654 FREQ_INFO( 800, 876, INTEL_BUS_CLK),
655 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
657 static freq_info PM_723_90[] = {
658 /* 90 nm 1.00GHz Ultra Low Voltage Pentium M */
659 FREQ_INFO(1000, 940, INTEL_BUS_CLK),
660 FREQ_INFO( 900, 908, INTEL_BUS_CLK),
661 FREQ_INFO( 800, 876, INTEL_BUS_CLK),
662 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
666 * VIA C7-M 500 MHz FSB, 400 MHz FSB, and ULV variants.
667 * Data from the "VIA C7-M Processor BIOS Writer's Guide (v2.17)" datasheet.
669 static freq_info C7M_795[] = {
670 /* 2.00GHz Centaur C7-M 533 Mhz FSB */
671 FREQ_INFO_PWR(2000, 1148, 133, 20000),
672 FREQ_INFO_PWR(1867, 1132, 133, 18000),
673 FREQ_INFO_PWR(1600, 1100, 133, 15000),
674 FREQ_INFO_PWR(1467, 1052, 133, 13000),
675 FREQ_INFO_PWR(1200, 1004, 133, 10000),
676 FREQ_INFO_PWR( 800, 844, 133, 7000),
677 FREQ_INFO_PWR( 667, 844, 133, 6000),
678 FREQ_INFO_PWR( 533, 844, 133, 5000),
680 static freq_info C7M_785[] = {
681 /* 1.80GHz Centaur C7-M 533 Mhz FSB */
682 FREQ_INFO_PWR(1867, 1148, 133, 18000),
683 FREQ_INFO_PWR(1600, 1100, 133, 15000),
684 FREQ_INFO_PWR(1467, 1052, 133, 13000),
685 FREQ_INFO_PWR(1200, 1004, 133, 10000),
686 FREQ_INFO_PWR( 800, 844, 133, 7000),
687 FREQ_INFO_PWR( 667, 844, 133, 6000),
688 FREQ_INFO_PWR( 533, 844, 133, 5000),
690 static freq_info C7M_765[] = {
691 /* 1.60GHz Centaur C7-M 533 Mhz FSB */
692 FREQ_INFO_PWR(1600, 1084, 133, 15000),
693 FREQ_INFO_PWR(1467, 1052, 133, 13000),
694 FREQ_INFO_PWR(1200, 1004, 133, 10000),
695 FREQ_INFO_PWR( 800, 844, 133, 7000),
696 FREQ_INFO_PWR( 667, 844, 133, 6000),
697 FREQ_INFO_PWR( 533, 844, 133, 5000),
700 static freq_info C7M_794[] = {
701 /* 2.00GHz Centaur C7-M 400 Mhz FSB */
702 FREQ_INFO_PWR(2000, 1148, 100, 20000),
703 FREQ_INFO_PWR(1800, 1132, 100, 18000),
704 FREQ_INFO_PWR(1600, 1100, 100, 15000),
705 FREQ_INFO_PWR(1400, 1052, 100, 13000),
706 FREQ_INFO_PWR(1000, 1004, 100, 10000),
707 FREQ_INFO_PWR( 800, 844, 100, 7000),
708 FREQ_INFO_PWR( 600, 844, 100, 6000),
709 FREQ_INFO_PWR( 400, 844, 100, 5000),
711 static freq_info C7M_784[] = {
712 /* 1.80GHz Centaur C7-M 400 Mhz FSB */
713 FREQ_INFO_PWR(1800, 1148, 100, 18000),
714 FREQ_INFO_PWR(1600, 1100, 100, 15000),
715 FREQ_INFO_PWR(1400, 1052, 100, 13000),
716 FREQ_INFO_PWR(1000, 1004, 100, 10000),
717 FREQ_INFO_PWR( 800, 844, 100, 7000),
718 FREQ_INFO_PWR( 600, 844, 100, 6000),
719 FREQ_INFO_PWR( 400, 844, 100, 5000),
721 static freq_info C7M_764[] = {
722 /* 1.60GHz Centaur C7-M 400 Mhz FSB */
723 FREQ_INFO_PWR(1600, 1084, 100, 15000),
724 FREQ_INFO_PWR(1400, 1052, 100, 13000),
725 FREQ_INFO_PWR(1000, 1004, 100, 10000),
726 FREQ_INFO_PWR( 800, 844, 100, 7000),
727 FREQ_INFO_PWR( 600, 844, 100, 6000),
728 FREQ_INFO_PWR( 400, 844, 100, 5000),
730 static freq_info C7M_754[] = {
731 /* 1.50GHz Centaur C7-M 400 Mhz FSB */
732 FREQ_INFO_PWR(1500, 1004, 100, 12000),
733 FREQ_INFO_PWR(1400, 988, 100, 11000),
734 FREQ_INFO_PWR(1000, 940, 100, 9000),
735 FREQ_INFO_PWR( 800, 844, 100, 7000),
736 FREQ_INFO_PWR( 600, 844, 100, 6000),
737 FREQ_INFO_PWR( 400, 844, 100, 5000),
739 static freq_info C7M_771[] = {
740 /* 1.20GHz Centaur C7-M 400 Mhz FSB */
741 FREQ_INFO_PWR(1200, 860, 100, 7000),
742 FREQ_INFO_PWR(1000, 860, 100, 6000),
743 FREQ_INFO_PWR( 800, 844, 100, 5500),
744 FREQ_INFO_PWR( 600, 844, 100, 5000),
745 FREQ_INFO_PWR( 400, 844, 100, 4000),
748 static freq_info C7M_775_ULV[] = {
749 /* 1.50GHz Centaur C7-M ULV */
750 FREQ_INFO_PWR(1500, 956, 100, 7500),
751 FREQ_INFO_PWR(1400, 940, 100, 6000),
752 FREQ_INFO_PWR(1000, 860, 100, 5000),
753 FREQ_INFO_PWR( 800, 828, 100, 2800),
754 FREQ_INFO_PWR( 600, 796, 100, 2500),
755 FREQ_INFO_PWR( 400, 796, 100, 2000),
757 static freq_info C7M_772_ULV[] = {
758 /* 1.20GHz Centaur C7-M ULV */
759 FREQ_INFO_PWR(1200, 844, 100, 5000),
760 FREQ_INFO_PWR(1000, 844, 100, 4000),
761 FREQ_INFO_PWR( 800, 828, 100, 2800),
762 FREQ_INFO_PWR( 600, 796, 100, 2500),
763 FREQ_INFO_PWR( 400, 796, 100, 2000),
765 static freq_info C7M_779_ULV[] = {
766 /* 1.00GHz Centaur C7-M ULV */
767 FREQ_INFO_PWR(1000, 796, 100, 3500),
768 FREQ_INFO_PWR( 800, 796, 100, 2800),
769 FREQ_INFO_PWR( 600, 796, 100, 2500),
770 FREQ_INFO_PWR( 400, 796, 100, 2000),
772 static freq_info C7M_770_ULV[] = {
773 /* 1.00GHz Centaur C7-M ULV */
774 FREQ_INFO_PWR(1000, 844, 100, 5000),
775 FREQ_INFO_PWR( 800, 796, 100, 2800),
776 FREQ_INFO_PWR( 600, 796, 100, 2500),
777 FREQ_INFO_PWR( 400, 796, 100, 2000),
780 static cpu_info ESTprocs[] = {
781 INTEL(PM17_130, 1700, 1484, 600, 956, INTEL_BUS_CLK),
782 INTEL(PM16_130, 1600, 1484, 600, 956, INTEL_BUS_CLK),
783 INTEL(PM15_130, 1500, 1484, 600, 956, INTEL_BUS_CLK),
784 INTEL(PM14_130, 1400, 1484, 600, 956, INTEL_BUS_CLK),
785 INTEL(PM13_130, 1300, 1388, 600, 956, INTEL_BUS_CLK),
786 INTEL(PM13_LV_130, 1300, 1180, 600, 956, INTEL_BUS_CLK),
787 INTEL(PM12_LV_130, 1200, 1180, 600, 956, INTEL_BUS_CLK),
788 INTEL(PM11_LV_130, 1100, 1180, 600, 956, INTEL_BUS_CLK),
789 INTEL(PM11_ULV_130, 1100, 1004, 600, 844, INTEL_BUS_CLK),
790 INTEL(PM10_ULV_130, 1000, 1004, 600, 844, INTEL_BUS_CLK),
791 INTEL(PM_765A_90, 2100, 1340, 600, 988, INTEL_BUS_CLK),
792 INTEL(PM_765B_90, 2100, 1324, 600, 988, INTEL_BUS_CLK),
793 INTEL(PM_765C_90, 2100, 1308, 600, 988, INTEL_BUS_CLK),
794 INTEL(PM_765E_90, 2100, 1356, 600, 988, INTEL_BUS_CLK),
795 INTEL(PM_755A_90, 2000, 1340, 600, 988, INTEL_BUS_CLK),
796 INTEL(PM_755B_90, 2000, 1324, 600, 988, INTEL_BUS_CLK),
797 INTEL(PM_755C_90, 2000, 1308, 600, 988, INTEL_BUS_CLK),
798 INTEL(PM_755D_90, 2000, 1276, 600, 988, INTEL_BUS_CLK),
799 INTEL(PM_745A_90, 1800, 1340, 600, 988, INTEL_BUS_CLK),
800 INTEL(PM_745B_90, 1800, 1324, 600, 988, INTEL_BUS_CLK),
801 INTEL(PM_745C_90, 1800, 1308, 600, 988, INTEL_BUS_CLK),
802 INTEL(PM_745D_90, 1800, 1276, 600, 988, INTEL_BUS_CLK),
803 INTEL(PM_735A_90, 1700, 1340, 600, 988, INTEL_BUS_CLK),
804 INTEL(PM_735B_90, 1700, 1324, 600, 988, INTEL_BUS_CLK),
805 INTEL(PM_735C_90, 1700, 1308, 600, 988, INTEL_BUS_CLK),
806 INTEL(PM_735D_90, 1700, 1276, 600, 988, INTEL_BUS_CLK),
807 INTEL(PM_725A_90, 1600, 1340, 600, 988, INTEL_BUS_CLK),
808 INTEL(PM_725B_90, 1600, 1324, 600, 988, INTEL_BUS_CLK),
809 INTEL(PM_725C_90, 1600, 1308, 600, 988, INTEL_BUS_CLK),
810 INTEL(PM_725D_90, 1600, 1276, 600, 988, INTEL_BUS_CLK),
811 INTEL(PM_715A_90, 1500, 1340, 600, 988, INTEL_BUS_CLK),
812 INTEL(PM_715B_90, 1500, 1324, 600, 988, INTEL_BUS_CLK),
813 INTEL(PM_715C_90, 1500, 1308, 600, 988, INTEL_BUS_CLK),
814 INTEL(PM_715D_90, 1500, 1276, 600, 988, INTEL_BUS_CLK),
815 INTEL(PM_778_90, 1600, 1116, 600, 988, INTEL_BUS_CLK),
816 INTEL(PM_758_90, 1500, 1116, 600, 988, INTEL_BUS_CLK),
817 INTEL(PM_738_90, 1400, 1116, 600, 988, INTEL_BUS_CLK),
818 INTEL(PM_773G_90, 1300, 956, 600, 812, INTEL_BUS_CLK),
819 INTEL(PM_773H_90, 1300, 940, 600, 812, INTEL_BUS_CLK),
820 INTEL(PM_773I_90, 1300, 924, 600, 812, INTEL_BUS_CLK),
821 INTEL(PM_773J_90, 1300, 908, 600, 812, INTEL_BUS_CLK),
822 INTEL(PM_773K_90, 1300, 892, 600, 812, INTEL_BUS_CLK),
823 INTEL(PM_773L_90, 1300, 876, 600, 812, INTEL_BUS_CLK),
824 INTEL(PM_753G_90, 1200, 956, 600, 812, INTEL_BUS_CLK),
825 INTEL(PM_753H_90, 1200, 940, 600, 812, INTEL_BUS_CLK),
826 INTEL(PM_753I_90, 1200, 924, 600, 812, INTEL_BUS_CLK),
827 INTEL(PM_753J_90, 1200, 908, 600, 812, INTEL_BUS_CLK),
828 INTEL(PM_753K_90, 1200, 892, 600, 812, INTEL_BUS_CLK),
829 INTEL(PM_753L_90, 1200, 876, 600, 812, INTEL_BUS_CLK),
830 INTEL(PM_733JG_90, 1100, 956, 600, 812, INTEL_BUS_CLK),
831 INTEL(PM_733JH_90, 1100, 940, 600, 812, INTEL_BUS_CLK),
832 INTEL(PM_733JI_90, 1100, 924, 600, 812, INTEL_BUS_CLK),
833 INTEL(PM_733JJ_90, 1100, 908, 600, 812, INTEL_BUS_CLK),
834 INTEL(PM_733JK_90, 1100, 892, 600, 812, INTEL_BUS_CLK),
835 INTEL(PM_733JL_90, 1100, 876, 600, 812, INTEL_BUS_CLK),
836 INTEL(PM_733_90, 1100, 940, 600, 812, INTEL_BUS_CLK),
837 INTEL(PM_723_90, 1000, 940, 600, 812, INTEL_BUS_CLK),
839 CENTAUR(C7M_795, 2000, 1148, 533, 844, 133),
840 CENTAUR(C7M_794, 2000, 1148, 400, 844, 100),
841 CENTAUR(C7M_785, 1867, 1148, 533, 844, 133),
842 CENTAUR(C7M_784, 1800, 1148, 400, 844, 100),
843 CENTAUR(C7M_765, 1600, 1084, 533, 844, 133),
844 CENTAUR(C7M_764, 1600, 1084, 400, 844, 100),
845 CENTAUR(C7M_754, 1500, 1004, 400, 844, 100),
846 CENTAUR(C7M_775_ULV, 1500, 956, 400, 796, 100),
847 CENTAUR(C7M_771, 1200, 860, 400, 844, 100),
848 CENTAUR(C7M_772_ULV, 1200, 844, 400, 796, 100),
849 CENTAUR(C7M_779_ULV, 1000, 796, 400, 796, 100),
850 CENTAUR(C7M_770_ULV, 1000, 844, 400, 796, 100),
854 static void est_identify(driver_t *driver, device_t parent);
855 static int est_features(driver_t *driver, u_int *features);
856 static int est_probe(device_t parent);
857 static int est_attach(device_t parent);
858 static int est_detach(device_t parent);
859 static int est_get_info(device_t dev);
860 static int est_acpi_info(device_t dev, freq_info **freqs,
862 static int est_table_info(device_t dev, uint64_t msr, freq_info **freqs,
864 static int est_msr_info(device_t dev, uint64_t msr, freq_info **freqs,
866 static freq_info *est_get_current(freq_info *freq_list, size_t tablen);
867 static int est_settings(device_t dev, struct cf_setting *sets, int *count);
868 static int est_set(device_t dev, const struct cf_setting *set);
869 static int est_get(device_t dev, struct cf_setting *set);
870 static int est_type(device_t dev, int *type);
871 static int est_set_id16(device_t dev, uint16_t id16, int need_check);
872 static void est_get_id16(uint16_t *id16_p);
874 static device_method_t est_methods[] = {
875 /* Device interface */
876 DEVMETHOD(device_identify, est_identify),
877 DEVMETHOD(device_probe, est_probe),
878 DEVMETHOD(device_attach, est_attach),
879 DEVMETHOD(device_detach, est_detach),
881 /* cpufreq interface */
882 DEVMETHOD(cpufreq_drv_set, est_set),
883 DEVMETHOD(cpufreq_drv_get, est_get),
884 DEVMETHOD(cpufreq_drv_type, est_type),
885 DEVMETHOD(cpufreq_drv_settings, est_settings),
888 DEVMETHOD(acpi_get_features, est_features),
893 static driver_t est_driver = {
896 sizeof(struct est_softc),
899 static devclass_t est_devclass;
900 DRIVER_MODULE(est, cpu, est_driver, est_devclass, 0, 0);
903 est_features(driver_t *driver, u_int *features)
907 * Notify the ACPI CPU that we support direct access to MSRs.
908 * XXX C1 "I/O then Halt" seems necessary for some broken BIOS.
910 *features = ACPI_CAP_PERF_MSRS | ACPI_CAP_C1_IO_HALT;
915 est_identify(driver_t *driver, device_t parent)
919 /* Make sure we're not being doubly invoked. */
920 if (device_find_child(parent, "est", -1) != NULL)
923 /* Check that CPUID is supported and the vendor is Intel.*/
924 if (cpu_high == 0 || (cpu_vendor_id != CPU_VENDOR_INTEL &&
925 cpu_vendor_id != CPU_VENDOR_CENTAUR))
929 * Check if the CPU supports EST.
931 if (!(cpu_feature2 & CPUID2_EST))
935 * We add a child for each CPU since settings must be performed
936 * on each CPU in the SMP case.
938 child = BUS_ADD_CHILD(parent, 10, "est", -1);
940 device_printf(parent, "add est child failed\n");
944 est_probe(device_t dev)
950 if (resource_disabled("est", 0))
954 * If the ACPI perf driver has attached and is not just offering
955 * info, let it manage things.
957 perf_dev = device_find_child(device_get_parent(dev), "acpi_perf", -1);
958 if (perf_dev && device_is_attached(perf_dev)) {
959 error = CPUFREQ_DRV_TYPE(perf_dev, &type);
960 if (error == 0 && (type & CPUFREQ_FLAG_INFO_ONLY) == 0)
964 /* Attempt to enable SpeedStep if not currently enabled. */
965 msr = rdmsr(MSR_MISC_ENABLE);
966 if ((msr & MSR_SS_ENABLE) == 0) {
967 wrmsr(MSR_MISC_ENABLE, msr | MSR_SS_ENABLE);
969 device_printf(dev, "enabling SpeedStep\n");
971 /* Check if the enable failed. */
972 msr = rdmsr(MSR_MISC_ENABLE);
973 if ((msr & MSR_SS_ENABLE) == 0) {
974 device_printf(dev, "failed to enable SpeedStep\n");
979 device_set_desc(dev, "Enhanced SpeedStep Frequency Control");
984 est_attach(device_t dev)
986 struct est_softc *sc;
988 sc = device_get_softc(dev);
991 /* On SMP system we can't guarantie independent freq setting. */
992 if (strict == -1 && mp_ncpus > 1)
994 /* Check CPU for supported settings. */
995 if (est_get_info(dev))
998 cpufreq_register(dev);
1003 est_detach(device_t dev)
1005 struct est_softc *sc;
1008 error = cpufreq_unregister(dev);
1012 sc = device_get_softc(dev);
1013 if (sc->acpi_settings || sc->msr_settings)
1014 free(sc->freq_list, M_DEVBUF);
1019 * Probe for supported CPU settings. First, check our static table of
1020 * settings. If no match, try using the ones offered by acpi_perf
1021 * (i.e., _PSS). We use ACPI second because some systems (IBM R/T40
1022 * series) export both legacy SMM IO-based access and direct MSR access
1023 * but the direct access specifies invalid values for _PSS.
1026 est_get_info(device_t dev)
1028 struct est_softc *sc;
1032 sc = device_get_softc(dev);
1033 msr = rdmsr(MSR_PERF_STATUS);
1034 error = est_table_info(dev, msr, &sc->freq_list, &sc->flist_len);
1036 error = est_acpi_info(dev, &sc->freq_list, &sc->flist_len);
1038 error = est_msr_info(dev, msr, &sc->freq_list, &sc->flist_len);
1042 "est: CPU supports Enhanced Speedstep, but is not recognized.\n"
1043 "est: cpu_vendor %s, msr %0jx\n", cpu_vendor, msr);
1051 est_acpi_info(device_t dev, freq_info **freqs, size_t *freqslen)
1053 struct est_softc *sc;
1054 struct cf_setting *sets;
1057 int count, error, i, j;
1058 uint16_t saved_id16;
1060 perf_dev = device_find_child(device_get_parent(dev), "acpi_perf", -1);
1061 if (perf_dev == NULL || !device_is_attached(perf_dev))
1064 /* Fetch settings from acpi_perf. */
1065 sc = device_get_softc(dev);
1067 sets = malloc(MAX_SETTINGS * sizeof(*sets), M_TEMP, M_NOWAIT);
1070 count = MAX_SETTINGS;
1071 error = CPUFREQ_DRV_SETTINGS(perf_dev, sets, &count);
1075 /* Parse settings into our local table format. */
1076 table = malloc(count * sizeof(*table), M_DEVBUF, M_NOWAIT);
1077 if (table == NULL) {
1081 est_get_id16(&saved_id16);
1082 for (i = 0, j = 0; i < count; i++) {
1084 * Confirm id16 value is correct.
1086 if (sets[i].freq > 0) {
1087 error = est_set_id16(dev, sets[i].spec[0], strict);
1090 device_printf(dev, "Invalid freq %u, "
1091 "ignored.\n", sets[i].freq);
1094 table[j].freq = sets[i].freq;
1095 table[j].volts = sets[i].volts;
1096 table[j].id16 = sets[i].spec[0];
1097 table[j].power = sets[i].power;
1101 /* restore saved setting */
1102 est_set_id16(dev, saved_id16, 0);
1104 sc->acpi_settings = TRUE;
1113 free(table, M_DEVBUF);
1118 est_table_info(device_t dev, uint64_t msr, freq_info **freqs, size_t *freqslen)
1123 /* Find a table which matches (vendor, id32). */
1125 for (p = ESTprocs; p->id32 != 0; p++) {
1126 if (p->vendor_id == cpu_vendor_id && p->id32 == id)
1130 return (EOPNOTSUPP);
1132 /* Make sure the current setpoint is valid. */
1133 if (est_get_current(p->freqtab, p->tablen) == NULL) {
1134 device_printf(dev, "current setting not found in table\n");
1135 return (EOPNOTSUPP);
1138 *freqs = p->freqtab;
1139 *freqslen = p->tablen;
1144 bus_speed_ok(int bus)
1158 * Flesh out a simple rate table containing the high and low frequencies
1159 * based on the current clock speed and the upper 32 bits of the MSR.
1162 est_msr_info(device_t dev, uint64_t msr, freq_info **freqs, size_t *freqslen)
1164 struct est_softc *sc;
1166 int bus, freq, volts;
1169 if (!msr_info_enabled)
1170 return (EOPNOTSUPP);
1172 /* Figure out the bus clock. */
1173 freq = atomic_load_acq_64(&tsc_freq) / 1000000;
1175 bus = freq / (id >> 8);
1176 device_printf(dev, "Guessed bus clock (high) of %d MHz\n", bus);
1177 if (!bus_speed_ok(bus)) {
1178 /* We may be running on the low frequency. */
1180 bus = freq / (id >> 8);
1181 device_printf(dev, "Guessed bus clock (low) of %d MHz\n", bus);
1182 if (!bus_speed_ok(bus))
1183 return (EOPNOTSUPP);
1185 /* Calculate high frequency. */
1187 freq = ((id >> 8) & 0xff) * bus;
1190 /* Fill out a new freq table containing just the high and low freqs. */
1191 sc = device_get_softc(dev);
1192 fp = malloc(sizeof(freq_info) * 2, M_DEVBUF, M_WAITOK | M_ZERO);
1194 /* First, the high frequency. */
1201 fp[0].volts = volts;
1203 fp[0].power = CPUFREQ_VAL_UNKNOWN;
1204 device_printf(dev, "Guessed high setting of %d MHz @ %d Mv\n", freq,
1207 /* Second, the low frequency. */
1209 freq = ((id >> 8) & 0xff) * bus;
1216 fp[1].volts = volts;
1218 fp[1].power = CPUFREQ_VAL_UNKNOWN;
1219 device_printf(dev, "Guessed low setting of %d MHz @ %d Mv\n", freq,
1222 /* Table is already terminated due to M_ZERO. */
1223 sc->msr_settings = TRUE;
1230 est_get_id16(uint16_t *id16_p)
1232 *id16_p = rdmsr(MSR_PERF_STATUS) & 0xffff;
1236 est_set_id16(device_t dev, uint16_t id16, int need_check)
1242 /* Read the current register, mask out the old, set the new id. */
1243 msr = rdmsr(MSR_PERF_CTL);
1244 msr = (msr & ~0xffff) | id16;
1245 wrmsr(MSR_PERF_CTL, msr);
1248 /* Wait a short while and read the new status. */
1249 DELAY(EST_TRANS_LAT);
1250 est_get_id16(&new_id16);
1251 if (new_id16 != id16) {
1253 device_printf(dev, "Invalid id16 (set, cur) "
1254 "= (%u, %u)\n", id16, new_id16);
1262 est_get_current(freq_info *freq_list, size_t tablen)
1269 * Try a few times to get a valid value. Sometimes, if the CPU
1270 * is in the middle of an asynchronous transition (i.e., P4TCC),
1271 * we get a temporary invalid result.
1273 for (i = 0; i < 5; i++) {
1274 est_get_id16(&id16);
1275 for (f = freq_list; f < freq_list + tablen; f++) {
1276 if (f->id16 == id16)
1285 est_settings(device_t dev, struct cf_setting *sets, int *count)
1287 struct est_softc *sc;
1291 sc = device_get_softc(dev);
1292 if (*count < EST_MAX_SETTINGS)
1296 for (f = sc->freq_list; f < sc->freq_list + sc->flist_len; f++, i++) {
1297 sets[i].freq = f->freq;
1298 sets[i].volts = f->volts;
1299 sets[i].power = f->power;
1300 sets[i].lat = EST_TRANS_LAT;
1309 est_set(device_t dev, const struct cf_setting *set)
1311 struct est_softc *sc;
1314 /* Find the setting matching the requested one. */
1315 sc = device_get_softc(dev);
1316 for (f = sc->freq_list; f < sc->freq_list + sc->flist_len; f++) {
1317 if (f->freq == set->freq)
1323 /* Read the current register, mask out the old, set the new id. */
1324 est_set_id16(dev, f->id16, 0);
1330 est_get(device_t dev, struct cf_setting *set)
1332 struct est_softc *sc;
1335 sc = device_get_softc(dev);
1336 f = est_get_current(sc->freq_list, sc->flist_len);
1340 set->freq = f->freq;
1341 set->volts = f->volts;
1342 set->power = f->power;
1343 set->lat = EST_TRANS_LAT;
1349 est_type(device_t dev, int *type)
1355 *type = CPUFREQ_TYPE_ABSOLUTE;