FreeBSD/Linux Kernel Cross Reference
sys/x86/cpufreq/est.c
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2004 Colin Percival
5 * Copyright (c) 2005 Nate Lawson
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted providing that the following conditions
10 * are met:
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.
16 *
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.
28 */
29
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32
33 #include <sys/param.h>
34 #include <sys/bus.h>
35 #include <sys/cpu.h>
36 #include <sys/kernel.h>
37 #include <sys/malloc.h>
38 #include <sys/module.h>
39 #include <sys/smp.h>
40 #include <sys/systm.h>
41
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>
47
48 #include <contrib/dev/acpica/include/acpi.h>
49
50 #include <dev/acpica/acpivar.h>
51 #include "acpi_if.h"
52
53 #include <x86/cpufreq/hwpstate_intel_internal.h>
54
55 /* Status/control registers (from the IA-32 System Programming Guide). */
56 #define MSR_PERF_STATUS 0x198
57 #define MSR_PERF_CTL 0x199
58
59 /* Register and bit for enabling SpeedStep. */
60 #define MSR_MISC_ENABLE 0x1a0
61 #define MSR_SS_ENABLE (1<<16)
62
63 /* Frequency and MSR control values. */
64 typedef struct {
65 uint16_t freq;
66 uint16_t volts;
67 uint16_t id16;
68 int power;
69 } freq_info;
70
71 /* Identifying characteristics of a processor and supported frequencies. */
72 typedef struct {
73 const u_int vendor_id;
74 uint32_t id32;
75 freq_info *freqtab;
76 size_t tablen;
77 } cpu_info;
78
79 struct est_softc {
80 device_t dev;
81 int acpi_settings;
82 int msr_settings;
83 freq_info *freq_list;
84 size_t flist_len;
85 };
86
87 /* Convert MHz and mV into IDs for passing to the MSR. */
88 #define ID16(MHz, mV, bus_clk) \
89 (((MHz / bus_clk) << 8) | ((mV ? mV - 700 : 0) >> 4))
90 #define ID32(MHz_hi, mV_hi, MHz_lo, mV_lo, bus_clk) \
91 ((ID16(MHz_lo, mV_lo, bus_clk) << 16) | (ID16(MHz_hi, mV_hi, bus_clk)))
92
93 /* Format for storing IDs in our table. */
94 #define FREQ_INFO_PWR(MHz, mV, bus_clk, mW) \
95 { MHz, mV, ID16(MHz, mV, bus_clk), mW }
96 #define FREQ_INFO(MHz, mV, bus_clk) \
97 FREQ_INFO_PWR(MHz, mV, bus_clk, CPUFREQ_VAL_UNKNOWN)
98 #define INTEL(tab, zhi, vhi, zlo, vlo, bus_clk) \
99 { CPU_VENDOR_INTEL, ID32(zhi, vhi, zlo, vlo, bus_clk), tab, nitems(tab) }
100 #define CENTAUR(tab, zhi, vhi, zlo, vlo, bus_clk) \
101 { CPU_VENDOR_CENTAUR, ID32(zhi, vhi, zlo, vlo, bus_clk), tab, nitems(tab) }
102
103 static int msr_info_enabled = 0;
104 TUNABLE_INT("hw.est.msr_info", &msr_info_enabled);
105 static int strict = -1;
106 TUNABLE_INT("hw.est.strict", &strict);
107
108 /* Default bus clock value for Centrino processors. */
109 #define INTEL_BUS_CLK 100
110
111 /* XXX Update this if new CPUs have more settings. */
112 #define EST_MAX_SETTINGS 10
113 CTASSERT(EST_MAX_SETTINGS <= MAX_SETTINGS);
114
115 /* Estimate in microseconds of latency for performing a transition. */
116 #define EST_TRANS_LAT 1000
117
118 /*
119 * Frequency (MHz) and voltage (mV) settings.
120 *
121 * Dothan processors have multiple VID#s with different settings for
122 * each VID#. Since we can't uniquely identify this info
123 * without undisclosed methods from Intel, we can't support newer
124 * processors with this table method. If ACPI Px states are supported,
125 * we get info from them.
126 *
127 * Data from the "Intel Pentium M Processor Datasheet",
128 * Order Number 252612-003, Table 5.
129 */
130 static freq_info PM17_130[] = {
131 /* 130nm 1.70GHz Pentium M */
132 FREQ_INFO(1700, 1484, INTEL_BUS_CLK),
133 FREQ_INFO(1400, 1308, INTEL_BUS_CLK),
134 FREQ_INFO(1200, 1228, INTEL_BUS_CLK),
135 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
136 FREQ_INFO( 800, 1004, INTEL_BUS_CLK),
137 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
138 };
139 static freq_info PM16_130[] = {
140 /* 130nm 1.60GHz Pentium M */
141 FREQ_INFO(1600, 1484, INTEL_BUS_CLK),
142 FREQ_INFO(1400, 1420, INTEL_BUS_CLK),
143 FREQ_INFO(1200, 1276, INTEL_BUS_CLK),
144 FREQ_INFO(1000, 1164, INTEL_BUS_CLK),
145 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
146 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
147 };
148 static freq_info PM15_130[] = {
149 /* 130nm 1.50GHz Pentium M */
150 FREQ_INFO(1500, 1484, INTEL_BUS_CLK),
151 FREQ_INFO(1400, 1452, INTEL_BUS_CLK),
152 FREQ_INFO(1200, 1356, INTEL_BUS_CLK),
153 FREQ_INFO(1000, 1228, INTEL_BUS_CLK),
154 FREQ_INFO( 800, 1116, INTEL_BUS_CLK),
155 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
156 };
157 static freq_info PM14_130[] = {
158 /* 130nm 1.40GHz Pentium M */
159 FREQ_INFO(1400, 1484, INTEL_BUS_CLK),
160 FREQ_INFO(1200, 1436, INTEL_BUS_CLK),
161 FREQ_INFO(1000, 1308, INTEL_BUS_CLK),
162 FREQ_INFO( 800, 1180, INTEL_BUS_CLK),
163 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
164 };
165 static freq_info PM13_130[] = {
166 /* 130nm 1.30GHz Pentium M */
167 FREQ_INFO(1300, 1388, INTEL_BUS_CLK),
168 FREQ_INFO(1200, 1356, INTEL_BUS_CLK),
169 FREQ_INFO(1000, 1292, INTEL_BUS_CLK),
170 FREQ_INFO( 800, 1260, INTEL_BUS_CLK),
171 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
172 };
173 static freq_info PM13_LV_130[] = {
174 /* 130nm 1.30GHz Low Voltage Pentium M */
175 FREQ_INFO(1300, 1180, INTEL_BUS_CLK),
176 FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
177 FREQ_INFO(1100, 1100, INTEL_BUS_CLK),
178 FREQ_INFO(1000, 1020, INTEL_BUS_CLK),
179 FREQ_INFO( 900, 1004, INTEL_BUS_CLK),
180 FREQ_INFO( 800, 988, INTEL_BUS_CLK),
181 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
182 };
183 static freq_info PM12_LV_130[] = {
184 /* 130 nm 1.20GHz Low Voltage Pentium M */
185 FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
186 FREQ_INFO(1100, 1164, INTEL_BUS_CLK),
187 FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
188 FREQ_INFO( 900, 1020, INTEL_BUS_CLK),
189 FREQ_INFO( 800, 1004, INTEL_BUS_CLK),
190 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
191 };
192 static freq_info PM11_LV_130[] = {
193 /* 130 nm 1.10GHz Low Voltage Pentium M */
194 FREQ_INFO(1100, 1180, INTEL_BUS_CLK),
195 FREQ_INFO(1000, 1164, INTEL_BUS_CLK),
196 FREQ_INFO( 900, 1100, INTEL_BUS_CLK),
197 FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
198 FREQ_INFO( 600, 956, INTEL_BUS_CLK),
199 };
200 static freq_info PM11_ULV_130[] = {
201 /* 130 nm 1.10GHz Ultra Low Voltage Pentium M */
202 FREQ_INFO(1100, 1004, INTEL_BUS_CLK),
203 FREQ_INFO(1000, 988, INTEL_BUS_CLK),
204 FREQ_INFO( 900, 972, INTEL_BUS_CLK),
205 FREQ_INFO( 800, 956, INTEL_BUS_CLK),
206 FREQ_INFO( 600, 844, INTEL_BUS_CLK),
207 };
208 static freq_info PM10_ULV_130[] = {
209 /* 130 nm 1.00GHz Ultra Low Voltage Pentium M */
210 FREQ_INFO(1000, 1004, INTEL_BUS_CLK),
211 FREQ_INFO( 900, 988, INTEL_BUS_CLK),
212 FREQ_INFO( 800, 972, INTEL_BUS_CLK),
213 FREQ_INFO( 600, 844, INTEL_BUS_CLK),
214 };
215
216 /*
217 * Data from "Intel Pentium M Processor on 90nm Process with
218 * 2-MB L2 Cache Datasheet", Order Number 302189-008, Table 5.
219 */
220 static freq_info PM_765A_90[] = {
221 /* 90 nm 2.10GHz Pentium M, VID #A */
222 FREQ_INFO(2100, 1340, INTEL_BUS_CLK),
223 FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
224 FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
225 FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
226 FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
227 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
228 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
229 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
230 };
231 static freq_info PM_765B_90[] = {
232 /* 90 nm 2.10GHz Pentium M, VID #B */
233 FREQ_INFO(2100, 1324, INTEL_BUS_CLK),
234 FREQ_INFO(1800, 1260, INTEL_BUS_CLK),
235 FREQ_INFO(1600, 1212, INTEL_BUS_CLK),
236 FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
237 FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
238 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
239 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
240 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
241 };
242 static freq_info PM_765C_90[] = {
243 /* 90 nm 2.10GHz Pentium M, VID #C */
244 FREQ_INFO(2100, 1308, INTEL_BUS_CLK),
245 FREQ_INFO(1800, 1244, INTEL_BUS_CLK),
246 FREQ_INFO(1600, 1212, INTEL_BUS_CLK),
247 FREQ_INFO(1400, 1164, INTEL_BUS_CLK),
248 FREQ_INFO(1200, 1116, INTEL_BUS_CLK),
249 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
250 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
251 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
252 };
253 static freq_info PM_765E_90[] = {
254 /* 90 nm 2.10GHz Pentium M, VID #E */
255 FREQ_INFO(2100, 1356, INTEL_BUS_CLK),
256 FREQ_INFO(1800, 1292, INTEL_BUS_CLK),
257 FREQ_INFO(1600, 1244, INTEL_BUS_CLK),
258 FREQ_INFO(1400, 1196, INTEL_BUS_CLK),
259 FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
260 FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
261 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
262 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
263 };
264 static freq_info PM_755A_90[] = {
265 /* 90 nm 2.00GHz Pentium M, VID #A */
266 FREQ_INFO(2000, 1340, INTEL_BUS_CLK),
267 FREQ_INFO(1800, 1292, INTEL_BUS_CLK),
268 FREQ_INFO(1600, 1244, INTEL_BUS_CLK),
269 FREQ_INFO(1400, 1196, INTEL_BUS_CLK),
270 FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
271 FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
272 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
273 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
274 };
275 static 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 };
286 static freq_info PM_755C_90[] = {
287 /* 90 nm 2.00GHz Pentium M, VID #C */
288 FREQ_INFO(2000, 1308, INTEL_BUS_CLK),
289 FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
290 FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
291 FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
292 FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
293 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
294 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
295 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
296 };
297 static freq_info PM_755D_90[] = {
298 /* 90 nm 2.00GHz Pentium M, VID #D */
299 FREQ_INFO(2000, 1276, INTEL_BUS_CLK),
300 FREQ_INFO(1800, 1244, INTEL_BUS_CLK),
301 FREQ_INFO(1600, 1196, INTEL_BUS_CLK),
302 FREQ_INFO(1400, 1164, INTEL_BUS_CLK),
303 FREQ_INFO(1200, 1116, INTEL_BUS_CLK),
304 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
305 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
306 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
307 };
308 static freq_info PM_745A_90[] = {
309 /* 90 nm 1.80GHz Pentium M, VID #A */
310 FREQ_INFO(1800, 1340, INTEL_BUS_CLK),
311 FREQ_INFO(1600, 1292, INTEL_BUS_CLK),
312 FREQ_INFO(1400, 1228, INTEL_BUS_CLK),
313 FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
314 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
315 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
316 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
317 };
318 static freq_info PM_745B_90[] = {
319 /* 90 nm 1.80GHz Pentium M, VID #B */
320 FREQ_INFO(1800, 1324, INTEL_BUS_CLK),
321 FREQ_INFO(1600, 1276, INTEL_BUS_CLK),
322 FREQ_INFO(1400, 1212, INTEL_BUS_CLK),
323 FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
324 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
325 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
326 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
327 };
328 static freq_info PM_745C_90[] = {
329 /* 90 nm 1.80GHz Pentium M, VID #C */
330 FREQ_INFO(1800, 1308, INTEL_BUS_CLK),
331 FREQ_INFO(1600, 1260, INTEL_BUS_CLK),
332 FREQ_INFO(1400, 1212, INTEL_BUS_CLK),
333 FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
334 FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
335 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
336 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
337 };
338 static freq_info PM_745D_90[] = {
339 /* 90 nm 1.80GHz Pentium M, VID #D */
340 FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
341 FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
342 FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
343 FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
344 FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
345 FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
346 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
347 };
348 static freq_info PM_735A_90[] = {
349 /* 90 nm 1.70GHz Pentium M, VID #A */
350 FREQ_INFO(1700, 1340, INTEL_BUS_CLK),
351 FREQ_INFO(1400, 1244, INTEL_BUS_CLK),
352 FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
353 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
354 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
355 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
356 };
357 static freq_info PM_735B_90[] = {
358 /* 90 nm 1.70GHz Pentium M, VID #B */
359 FREQ_INFO(1700, 1324, INTEL_BUS_CLK),
360 FREQ_INFO(1400, 1244, INTEL_BUS_CLK),
361 FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
362 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
363 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
364 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
365 };
366 static freq_info PM_735C_90[] = {
367 /* 90 nm 1.70GHz Pentium M, VID #C */
368 FREQ_INFO(1700, 1308, INTEL_BUS_CLK),
369 FREQ_INFO(1400, 1228, INTEL_BUS_CLK),
370 FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
371 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
372 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
373 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
374 };
375 static freq_info PM_735D_90[] = {
376 /* 90 nm 1.70GHz Pentium M, VID #D */
377 FREQ_INFO(1700, 1276, INTEL_BUS_CLK),
378 FREQ_INFO(1400, 1212, INTEL_BUS_CLK),
379 FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
380 FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
381 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
382 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
383 };
384 static freq_info PM_725A_90[] = {
385 /* 90 nm 1.60GHz Pentium M, VID #A */
386 FREQ_INFO(1600, 1340, INTEL_BUS_CLK),
387 FREQ_INFO(1400, 1276, INTEL_BUS_CLK),
388 FREQ_INFO(1200, 1212, INTEL_BUS_CLK),
389 FREQ_INFO(1000, 1132, INTEL_BUS_CLK),
390 FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
391 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
392 };
393 static freq_info PM_725B_90[] = {
394 /* 90 nm 1.60GHz Pentium M, VID #B */
395 FREQ_INFO(1600, 1324, INTEL_BUS_CLK),
396 FREQ_INFO(1400, 1260, INTEL_BUS_CLK),
397 FREQ_INFO(1200, 1196, INTEL_BUS_CLK),
398 FREQ_INFO(1000, 1132, INTEL_BUS_CLK),
399 FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
400 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
401 };
402 static freq_info PM_725C_90[] = {
403 /* 90 nm 1.60GHz Pentium M, VID #C */
404 FREQ_INFO(1600, 1308, INTEL_BUS_CLK),
405 FREQ_INFO(1400, 1244, INTEL_BUS_CLK),
406 FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
407 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
408 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
409 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
410 };
411 static freq_info PM_725D_90[] = {
412 /* 90 nm 1.60GHz Pentium M, VID #D */
413 FREQ_INFO(1600, 1276, INTEL_BUS_CLK),
414 FREQ_INFO(1400, 1228, INTEL_BUS_CLK),
415 FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
416 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
417 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
418 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
419 };
420 static freq_info PM_715A_90[] = {
421 /* 90 nm 1.50GHz Pentium M, VID #A */
422 FREQ_INFO(1500, 1340, INTEL_BUS_CLK),
423 FREQ_INFO(1200, 1228, INTEL_BUS_CLK),
424 FREQ_INFO(1000, 1148, INTEL_BUS_CLK),
425 FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
426 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
427 };
428 static freq_info PM_715B_90[] = {
429 /* 90 nm 1.50GHz Pentium M, VID #B */
430 FREQ_INFO(1500, 1324, INTEL_BUS_CLK),
431 FREQ_INFO(1200, 1212, INTEL_BUS_CLK),
432 FREQ_INFO(1000, 1148, INTEL_BUS_CLK),
433 FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
434 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
435 };
436 static freq_info PM_715C_90[] = {
437 /* 90 nm 1.50GHz Pentium M, VID #C */
438 FREQ_INFO(1500, 1308, INTEL_BUS_CLK),
439 FREQ_INFO(1200, 1212, INTEL_BUS_CLK),
440 FREQ_INFO(1000, 1132, INTEL_BUS_CLK),
441 FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
442 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
443 };
444 static freq_info PM_715D_90[] = {
445 /* 90 nm 1.50GHz Pentium M, VID #D */
446 FREQ_INFO(1500, 1276, INTEL_BUS_CLK),
447 FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
448 FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
449 FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
450 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
451 };
452 static freq_info PM_778_90[] = {
453 /* 90 nm 1.60GHz Low Voltage Pentium M */
454 FREQ_INFO(1600, 1116, INTEL_BUS_CLK),
455 FREQ_INFO(1500, 1116, INTEL_BUS_CLK),
456 FREQ_INFO(1400, 1100, INTEL_BUS_CLK),
457 FREQ_INFO(1300, 1084, INTEL_BUS_CLK),
458 FREQ_INFO(1200, 1068, INTEL_BUS_CLK),
459 FREQ_INFO(1100, 1052, INTEL_BUS_CLK),
460 FREQ_INFO(1000, 1052, INTEL_BUS_CLK),
461 FREQ_INFO( 900, 1036, INTEL_BUS_CLK),
462 FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
463 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
464 };
465 static freq_info PM_758_90[] = {
466 /* 90 nm 1.50GHz Low Voltage Pentium M */
467 FREQ_INFO(1500, 1116, INTEL_BUS_CLK),
468 FREQ_INFO(1400, 1116, INTEL_BUS_CLK),
469 FREQ_INFO(1300, 1100, INTEL_BUS_CLK),
470 FREQ_INFO(1200, 1084, INTEL_BUS_CLK),
471 FREQ_INFO(1100, 1068, INTEL_BUS_CLK),
472 FREQ_INFO(1000, 1052, INTEL_BUS_CLK),
473 FREQ_INFO( 900, 1036, INTEL_BUS_CLK),
474 FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
475 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
476 };
477 static freq_info PM_738_90[] = {
478 /* 90 nm 1.40GHz Low Voltage Pentium M */
479 FREQ_INFO(1400, 1116, INTEL_BUS_CLK),
480 FREQ_INFO(1300, 1116, INTEL_BUS_CLK),
481 FREQ_INFO(1200, 1100, INTEL_BUS_CLK),
482 FREQ_INFO(1100, 1068, INTEL_BUS_CLK),
483 FREQ_INFO(1000, 1052, INTEL_BUS_CLK),
484 FREQ_INFO( 900, 1036, INTEL_BUS_CLK),
485 FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
486 FREQ_INFO( 600, 988, INTEL_BUS_CLK),
487 };
488 static freq_info PM_773G_90[] = {
489 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #G */
490 FREQ_INFO(1300, 956, INTEL_BUS_CLK),
491 FREQ_INFO(1200, 940, INTEL_BUS_CLK),
492 FREQ_INFO(1100, 924, INTEL_BUS_CLK),
493 FREQ_INFO(1000, 908, INTEL_BUS_CLK),
494 FREQ_INFO( 900, 876, INTEL_BUS_CLK),
495 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
496 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
497 };
498 static freq_info PM_773H_90[] = {
499 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #H */
500 FREQ_INFO(1300, 940, INTEL_BUS_CLK),
501 FREQ_INFO(1200, 924, INTEL_BUS_CLK),
502 FREQ_INFO(1100, 908, INTEL_BUS_CLK),
503 FREQ_INFO(1000, 892, INTEL_BUS_CLK),
504 FREQ_INFO( 900, 876, INTEL_BUS_CLK),
505 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
506 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
507 };
508 static freq_info PM_773I_90[] = {
509 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #I */
510 FREQ_INFO(1300, 924, INTEL_BUS_CLK),
511 FREQ_INFO(1200, 908, INTEL_BUS_CLK),
512 FREQ_INFO(1100, 892, INTEL_BUS_CLK),
513 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
514 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
515 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
516 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
517 };
518 static freq_info PM_773J_90[] = {
519 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #J */
520 FREQ_INFO(1300, 908, INTEL_BUS_CLK),
521 FREQ_INFO(1200, 908, INTEL_BUS_CLK),
522 FREQ_INFO(1100, 892, INTEL_BUS_CLK),
523 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
524 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
525 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
526 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
527 };
528 static freq_info PM_773K_90[] = {
529 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #K */
530 FREQ_INFO(1300, 892, INTEL_BUS_CLK),
531 FREQ_INFO(1200, 892, INTEL_BUS_CLK),
532 FREQ_INFO(1100, 876, INTEL_BUS_CLK),
533 FREQ_INFO(1000, 860, INTEL_BUS_CLK),
534 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
535 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
536 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
537 };
538 static freq_info PM_773L_90[] = {
539 /* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #L */
540 FREQ_INFO(1300, 876, INTEL_BUS_CLK),
541 FREQ_INFO(1200, 876, INTEL_BUS_CLK),
542 FREQ_INFO(1100, 860, INTEL_BUS_CLK),
543 FREQ_INFO(1000, 860, INTEL_BUS_CLK),
544 FREQ_INFO( 900, 844, INTEL_BUS_CLK),
545 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
546 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
547 };
548 static freq_info PM_753G_90[] = {
549 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #G */
550 FREQ_INFO(1200, 956, INTEL_BUS_CLK),
551 FREQ_INFO(1100, 940, INTEL_BUS_CLK),
552 FREQ_INFO(1000, 908, INTEL_BUS_CLK),
553 FREQ_INFO( 900, 892, INTEL_BUS_CLK),
554 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
555 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
556 };
557 static freq_info PM_753H_90[] = {
558 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #H */
559 FREQ_INFO(1200, 940, INTEL_BUS_CLK),
560 FREQ_INFO(1100, 924, INTEL_BUS_CLK),
561 FREQ_INFO(1000, 908, INTEL_BUS_CLK),
562 FREQ_INFO( 900, 876, INTEL_BUS_CLK),
563 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
564 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
565 };
566 static freq_info PM_753I_90[] = {
567 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #I */
568 FREQ_INFO(1200, 924, INTEL_BUS_CLK),
569 FREQ_INFO(1100, 908, INTEL_BUS_CLK),
570 FREQ_INFO(1000, 892, INTEL_BUS_CLK),
571 FREQ_INFO( 900, 876, INTEL_BUS_CLK),
572 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
573 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
574 };
575 static freq_info PM_753J_90[] = {
576 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #J */
577 FREQ_INFO(1200, 908, INTEL_BUS_CLK),
578 FREQ_INFO(1100, 892, INTEL_BUS_CLK),
579 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
580 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
581 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
582 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
583 };
584 static freq_info PM_753K_90[] = {
585 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #K */
586 FREQ_INFO(1200, 892, INTEL_BUS_CLK),
587 FREQ_INFO(1100, 892, INTEL_BUS_CLK),
588 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
589 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
590 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
591 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
592 };
593 static freq_info PM_753L_90[] = {
594 /* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #L */
595 FREQ_INFO(1200, 876, INTEL_BUS_CLK),
596 FREQ_INFO(1100, 876, INTEL_BUS_CLK),
597 FREQ_INFO(1000, 860, INTEL_BUS_CLK),
598 FREQ_INFO( 900, 844, INTEL_BUS_CLK),
599 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
600 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
601 };
602
603 static freq_info PM_733JG_90[] = {
604 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #G */
605 FREQ_INFO(1100, 956, INTEL_BUS_CLK),
606 FREQ_INFO(1000, 940, INTEL_BUS_CLK),
607 FREQ_INFO( 900, 908, INTEL_BUS_CLK),
608 FREQ_INFO( 800, 876, INTEL_BUS_CLK),
609 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
610 };
611 static freq_info PM_733JH_90[] = {
612 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #H */
613 FREQ_INFO(1100, 940, INTEL_BUS_CLK),
614 FREQ_INFO(1000, 924, INTEL_BUS_CLK),
615 FREQ_INFO( 900, 892, INTEL_BUS_CLK),
616 FREQ_INFO( 800, 876, INTEL_BUS_CLK),
617 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
618 };
619 static freq_info PM_733JI_90[] = {
620 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #I */
621 FREQ_INFO(1100, 924, INTEL_BUS_CLK),
622 FREQ_INFO(1000, 908, INTEL_BUS_CLK),
623 FREQ_INFO( 900, 892, INTEL_BUS_CLK),
624 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
625 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
626 };
627 static freq_info PM_733JJ_90[] = {
628 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #J */
629 FREQ_INFO(1100, 908, INTEL_BUS_CLK),
630 FREQ_INFO(1000, 892, INTEL_BUS_CLK),
631 FREQ_INFO( 900, 876, INTEL_BUS_CLK),
632 FREQ_INFO( 800, 860, INTEL_BUS_CLK),
633 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
634 };
635 static freq_info PM_733JK_90[] = {
636 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #K */
637 FREQ_INFO(1100, 892, INTEL_BUS_CLK),
638 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
639 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
640 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
641 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
642 };
643 static freq_info PM_733JL_90[] = {
644 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #L */
645 FREQ_INFO(1100, 876, INTEL_BUS_CLK),
646 FREQ_INFO(1000, 876, INTEL_BUS_CLK),
647 FREQ_INFO( 900, 860, INTEL_BUS_CLK),
648 FREQ_INFO( 800, 844, INTEL_BUS_CLK),
649 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
650 };
651 static freq_info PM_733_90[] = {
652 /* 90 nm 1.10GHz Ultra Low Voltage Pentium M */
653 FREQ_INFO(1100, 940, INTEL_BUS_CLK),
654 FREQ_INFO(1000, 924, INTEL_BUS_CLK),
655 FREQ_INFO( 900, 892, INTEL_BUS_CLK),
656 FREQ_INFO( 800, 876, INTEL_BUS_CLK),
657 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
658 };
659 static freq_info PM_723_90[] = {
660 /* 90 nm 1.00GHz Ultra Low Voltage Pentium M */
661 FREQ_INFO(1000, 940, INTEL_BUS_CLK),
662 FREQ_INFO( 900, 908, INTEL_BUS_CLK),
663 FREQ_INFO( 800, 876, INTEL_BUS_CLK),
664 FREQ_INFO( 600, 812, INTEL_BUS_CLK),
665 };
666
667 /*
668 * VIA C7-M 500 MHz FSB, 400 MHz FSB, and ULV variants.
669 * Data from the "VIA C7-M Processor BIOS Writer's Guide (v2.17)" datasheet.
670 */
671 static freq_info C7M_795[] = {
672 /* 2.00GHz Centaur C7-M 533 Mhz FSB */
673 FREQ_INFO_PWR(2000, 1148, 133, 20000),
674 FREQ_INFO_PWR(1867, 1132, 133, 18000),
675 FREQ_INFO_PWR(1600, 1100, 133, 15000),
676 FREQ_INFO_PWR(1467, 1052, 133, 13000),
677 FREQ_INFO_PWR(1200, 1004, 133, 10000),
678 FREQ_INFO_PWR( 800, 844, 133, 7000),
679 FREQ_INFO_PWR( 667, 844, 133, 6000),
680 FREQ_INFO_PWR( 533, 844, 133, 5000),
681 };
682 static freq_info C7M_785[] = {
683 /* 1.80GHz Centaur C7-M 533 Mhz FSB */
684 FREQ_INFO_PWR(1867, 1148, 133, 18000),
685 FREQ_INFO_PWR(1600, 1100, 133, 15000),
686 FREQ_INFO_PWR(1467, 1052, 133, 13000),
687 FREQ_INFO_PWR(1200, 1004, 133, 10000),
688 FREQ_INFO_PWR( 800, 844, 133, 7000),
689 FREQ_INFO_PWR( 667, 844, 133, 6000),
690 FREQ_INFO_PWR( 533, 844, 133, 5000),
691 };
692 static freq_info C7M_765[] = {
693 /* 1.60GHz Centaur C7-M 533 Mhz FSB */
694 FREQ_INFO_PWR(1600, 1084, 133, 15000),
695 FREQ_INFO_PWR(1467, 1052, 133, 13000),
696 FREQ_INFO_PWR(1200, 1004, 133, 10000),
697 FREQ_INFO_PWR( 800, 844, 133, 7000),
698 FREQ_INFO_PWR( 667, 844, 133, 6000),
699 FREQ_INFO_PWR( 533, 844, 133, 5000),
700 };
701
702 static freq_info C7M_794[] = {
703 /* 2.00GHz Centaur C7-M 400 Mhz FSB */
704 FREQ_INFO_PWR(2000, 1148, 100, 20000),
705 FREQ_INFO_PWR(1800, 1132, 100, 18000),
706 FREQ_INFO_PWR(1600, 1100, 100, 15000),
707 FREQ_INFO_PWR(1400, 1052, 100, 13000),
708 FREQ_INFO_PWR(1000, 1004, 100, 10000),
709 FREQ_INFO_PWR( 800, 844, 100, 7000),
710 FREQ_INFO_PWR( 600, 844, 100, 6000),
711 FREQ_INFO_PWR( 400, 844, 100, 5000),
712 };
713 static freq_info C7M_784[] = {
714 /* 1.80GHz Centaur C7-M 400 Mhz FSB */
715 FREQ_INFO_PWR(1800, 1148, 100, 18000),
716 FREQ_INFO_PWR(1600, 1100, 100, 15000),
717 FREQ_INFO_PWR(1400, 1052, 100, 13000),
718 FREQ_INFO_PWR(1000, 1004, 100, 10000),
719 FREQ_INFO_PWR( 800, 844, 100, 7000),
720 FREQ_INFO_PWR( 600, 844, 100, 6000),
721 FREQ_INFO_PWR( 400, 844, 100, 5000),
722 };
723 static freq_info C7M_764[] = {
724 /* 1.60GHz Centaur C7-M 400 Mhz FSB */
725 FREQ_INFO_PWR(1600, 1084, 100, 15000),
726 FREQ_INFO_PWR(1400, 1052, 100, 13000),
727 FREQ_INFO_PWR(1000, 1004, 100, 10000),
728 FREQ_INFO_PWR( 800, 844, 100, 7000),
729 FREQ_INFO_PWR( 600, 844, 100, 6000),
730 FREQ_INFO_PWR( 400, 844, 100, 5000),
731 };
732 static freq_info C7M_754[] = {
733 /* 1.50GHz Centaur C7-M 400 Mhz FSB */
734 FREQ_INFO_PWR(1500, 1004, 100, 12000),
735 FREQ_INFO_PWR(1400, 988, 100, 11000),
736 FREQ_INFO_PWR(1000, 940, 100, 9000),
737 FREQ_INFO_PWR( 800, 844, 100, 7000),
738 FREQ_INFO_PWR( 600, 844, 100, 6000),
739 FREQ_INFO_PWR( 400, 844, 100, 5000),
740 };
741 static freq_info C7M_771[] = {
742 /* 1.20GHz Centaur C7-M 400 Mhz FSB */
743 FREQ_INFO_PWR(1200, 860, 100, 7000),
744 FREQ_INFO_PWR(1000, 860, 100, 6000),
745 FREQ_INFO_PWR( 800, 844, 100, 5500),
746 FREQ_INFO_PWR( 600, 844, 100, 5000),
747 FREQ_INFO_PWR( 400, 844, 100, 4000),
748 };
749
750 static freq_info C7M_775_ULV[] = {
751 /* 1.50GHz Centaur C7-M ULV */
752 FREQ_INFO_PWR(1500, 956, 100, 7500),
753 FREQ_INFO_PWR(1400, 940, 100, 6000),
754 FREQ_INFO_PWR(1000, 860, 100, 5000),
755 FREQ_INFO_PWR( 800, 828, 100, 2800),
756 FREQ_INFO_PWR( 600, 796, 100, 2500),
757 FREQ_INFO_PWR( 400, 796, 100, 2000),
758 };
759 static freq_info C7M_772_ULV[] = {
760 /* 1.20GHz Centaur C7-M ULV */
761 FREQ_INFO_PWR(1200, 844, 100, 5000),
762 FREQ_INFO_PWR(1000, 844, 100, 4000),
763 FREQ_INFO_PWR( 800, 828, 100, 2800),
764 FREQ_INFO_PWR( 600, 796, 100, 2500),
765 FREQ_INFO_PWR( 400, 796, 100, 2000),
766 };
767 static freq_info C7M_779_ULV[] = {
768 /* 1.00GHz Centaur C7-M ULV */
769 FREQ_INFO_PWR(1000, 796, 100, 3500),
770 FREQ_INFO_PWR( 800, 796, 100, 2800),
771 FREQ_INFO_PWR( 600, 796, 100, 2500),
772 FREQ_INFO_PWR( 400, 796, 100, 2000),
773 };
774 static freq_info C7M_770_ULV[] = {
775 /* 1.00GHz Centaur C7-M ULV */
776 FREQ_INFO_PWR(1000, 844, 100, 5000),
777 FREQ_INFO_PWR( 800, 796, 100, 2800),
778 FREQ_INFO_PWR( 600, 796, 100, 2500),
779 FREQ_INFO_PWR( 400, 796, 100, 2000),
780 };
781
782 static cpu_info ESTprocs[] = {
783 INTEL(PM17_130, 1700, 1484, 600, 956, INTEL_BUS_CLK),
784 INTEL(PM16_130, 1600, 1484, 600, 956, INTEL_BUS_CLK),
785 INTEL(PM15_130, 1500, 1484, 600, 956, INTEL_BUS_CLK),
786 INTEL(PM14_130, 1400, 1484, 600, 956, INTEL_BUS_CLK),
787 INTEL(PM13_130, 1300, 1388, 600, 956, INTEL_BUS_CLK),
788 INTEL(PM13_LV_130, 1300, 1180, 600, 956, INTEL_BUS_CLK),
789 INTEL(PM12_LV_130, 1200, 1180, 600, 956, INTEL_BUS_CLK),
790 INTEL(PM11_LV_130, 1100, 1180, 600, 956, INTEL_BUS_CLK),
791 INTEL(PM11_ULV_130, 1100, 1004, 600, 844, INTEL_BUS_CLK),
792 INTEL(PM10_ULV_130, 1000, 1004, 600, 844, INTEL_BUS_CLK),
793 INTEL(PM_765A_90, 2100, 1340, 600, 988, INTEL_BUS_CLK),
794 INTEL(PM_765B_90, 2100, 1324, 600, 988, INTEL_BUS_CLK),
795 INTEL(PM_765C_90, 2100, 1308, 600, 988, INTEL_BUS_CLK),
796 INTEL(PM_765E_90, 2100, 1356, 600, 988, INTEL_BUS_CLK),
797 INTEL(PM_755A_90, 2000, 1340, 600, 988, INTEL_BUS_CLK),
798 INTEL(PM_755B_90, 2000, 1324, 600, 988, INTEL_BUS_CLK),
799 INTEL(PM_755C_90, 2000, 1308, 600, 988, INTEL_BUS_CLK),
800 INTEL(PM_755D_90, 2000, 1276, 600, 988, INTEL_BUS_CLK),
801 INTEL(PM_745A_90, 1800, 1340, 600, 988, INTEL_BUS_CLK),
802 INTEL(PM_745B_90, 1800, 1324, 600, 988, INTEL_BUS_CLK),
803 INTEL(PM_745C_90, 1800, 1308, 600, 988, INTEL_BUS_CLK),
804 INTEL(PM_745D_90, 1800, 1276, 600, 988, INTEL_BUS_CLK),
805 INTEL(PM_735A_90, 1700, 1340, 600, 988, INTEL_BUS_CLK),
806 INTEL(PM_735B_90, 1700, 1324, 600, 988, INTEL_BUS_CLK),
807 INTEL(PM_735C_90, 1700, 1308, 600, 988, INTEL_BUS_CLK),
808 INTEL(PM_735D_90, 1700, 1276, 600, 988, INTEL_BUS_CLK),
809 INTEL(PM_725A_90, 1600, 1340, 600, 988, INTEL_BUS_CLK),
810 INTEL(PM_725B_90, 1600, 1324, 600, 988, INTEL_BUS_CLK),
811 INTEL(PM_725C_90, 1600, 1308, 600, 988, INTEL_BUS_CLK),
812 INTEL(PM_725D_90, 1600, 1276, 600, 988, INTEL_BUS_CLK),
813 INTEL(PM_715A_90, 1500, 1340, 600, 988, INTEL_BUS_CLK),
814 INTEL(PM_715B_90, 1500, 1324, 600, 988, INTEL_BUS_CLK),
815 INTEL(PM_715C_90, 1500, 1308, 600, 988, INTEL_BUS_CLK),
816 INTEL(PM_715D_90, 1500, 1276, 600, 988, INTEL_BUS_CLK),
817 INTEL(PM_778_90, 1600, 1116, 600, 988, INTEL_BUS_CLK),
818 INTEL(PM_758_90, 1500, 1116, 600, 988, INTEL_BUS_CLK),
819 INTEL(PM_738_90, 1400, 1116, 600, 988, INTEL_BUS_CLK),
820 INTEL(PM_773G_90, 1300, 956, 600, 812, INTEL_BUS_CLK),
821 INTEL(PM_773H_90, 1300, 940, 600, 812, INTEL_BUS_CLK),
822 INTEL(PM_773I_90, 1300, 924, 600, 812, INTEL_BUS_CLK),
823 INTEL(PM_773J_90, 1300, 908, 600, 812, INTEL_BUS_CLK),
824 INTEL(PM_773K_90, 1300, 892, 600, 812, INTEL_BUS_CLK),
825 INTEL(PM_773L_90, 1300, 876, 600, 812, INTEL_BUS_CLK),
826 INTEL(PM_753G_90, 1200, 956, 600, 812, INTEL_BUS_CLK),
827 INTEL(PM_753H_90, 1200, 940, 600, 812, INTEL_BUS_CLK),
828 INTEL(PM_753I_90, 1200, 924, 600, 812, INTEL_BUS_CLK),
829 INTEL(PM_753J_90, 1200, 908, 600, 812, INTEL_BUS_CLK),
830 INTEL(PM_753K_90, 1200, 892, 600, 812, INTEL_BUS_CLK),
831 INTEL(PM_753L_90, 1200, 876, 600, 812, INTEL_BUS_CLK),
832 INTEL(PM_733JG_90, 1100, 956, 600, 812, INTEL_BUS_CLK),
833 INTEL(PM_733JH_90, 1100, 940, 600, 812, INTEL_BUS_CLK),
834 INTEL(PM_733JI_90, 1100, 924, 600, 812, INTEL_BUS_CLK),
835 INTEL(PM_733JJ_90, 1100, 908, 600, 812, INTEL_BUS_CLK),
836 INTEL(PM_733JK_90, 1100, 892, 600, 812, INTEL_BUS_CLK),
837 INTEL(PM_733JL_90, 1100, 876, 600, 812, INTEL_BUS_CLK),
838 INTEL(PM_733_90, 1100, 940, 600, 812, INTEL_BUS_CLK),
839 INTEL(PM_723_90, 1000, 940, 600, 812, INTEL_BUS_CLK),
840
841 CENTAUR(C7M_795, 2000, 1148, 533, 844, 133),
842 CENTAUR(C7M_794, 2000, 1148, 400, 844, 100),
843 CENTAUR(C7M_785, 1867, 1148, 533, 844, 133),
844 CENTAUR(C7M_784, 1800, 1148, 400, 844, 100),
845 CENTAUR(C7M_765, 1600, 1084, 533, 844, 133),
846 CENTAUR(C7M_764, 1600, 1084, 400, 844, 100),
847 CENTAUR(C7M_754, 1500, 1004, 400, 844, 100),
848 CENTAUR(C7M_775_ULV, 1500, 956, 400, 796, 100),
849 CENTAUR(C7M_771, 1200, 860, 400, 844, 100),
850 CENTAUR(C7M_772_ULV, 1200, 844, 400, 796, 100),
851 CENTAUR(C7M_779_ULV, 1000, 796, 400, 796, 100),
852 CENTAUR(C7M_770_ULV, 1000, 844, 400, 796, 100),
853 { 0, 0, NULL },
854 };
855
856 static void est_identify(driver_t *driver, device_t parent);
857 static int est_features(driver_t *driver, u_int *features);
858 static int est_probe(device_t parent);
859 static int est_attach(device_t parent);
860 static int est_detach(device_t parent);
861 static int est_get_info(device_t dev);
862 static int est_acpi_info(device_t dev, freq_info **freqs,
863 size_t *freqslen);
864 static int est_table_info(device_t dev, uint64_t msr, freq_info **freqs,
865 size_t *freqslen);
866 static int est_msr_info(device_t dev, uint64_t msr, freq_info **freqs,
867 size_t *freqslen);
868 static freq_info *est_get_current(freq_info *freq_list, size_t tablen);
869 static int est_settings(device_t dev, struct cf_setting *sets, int *count);
870 static int est_set(device_t dev, const struct cf_setting *set);
871 static int est_get(device_t dev, struct cf_setting *set);
872 static int est_type(device_t dev, int *type);
873 static int est_set_id16(device_t dev, uint16_t id16, int need_check);
874 static void est_get_id16(uint16_t *id16_p);
875
876 static device_method_t est_methods[] = {
877 /* Device interface */
878 DEVMETHOD(device_identify, est_identify),
879 DEVMETHOD(device_probe, est_probe),
880 DEVMETHOD(device_attach, est_attach),
881 DEVMETHOD(device_detach, est_detach),
882
883 /* cpufreq interface */
884 DEVMETHOD(cpufreq_drv_set, est_set),
885 DEVMETHOD(cpufreq_drv_get, est_get),
886 DEVMETHOD(cpufreq_drv_type, est_type),
887 DEVMETHOD(cpufreq_drv_settings, est_settings),
888
889 /* ACPI interface */
890 DEVMETHOD(acpi_get_features, est_features),
891 {0, 0}
892 };
893
894 static driver_t est_driver = {
895 "est",
896 est_methods,
897 sizeof(struct est_softc),
898 };
899
900 static devclass_t est_devclass;
901 DRIVER_MODULE(est, cpu, est_driver, est_devclass, 0, 0);
902 MODULE_DEPEND(est, hwpstate_intel, 1, 1, 1);
903
904 static int
905 est_features(driver_t *driver, u_int *features)
906 {
907
908 /*
909 * Notify the ACPI CPU that we support direct access to MSRs.
910 * XXX C1 "I/O then Halt" seems necessary for some broken BIOS.
911 */
912 *features = ACPI_CAP_PERF_MSRS | ACPI_CAP_C1_IO_HALT;
913 return (0);
914 }
915
916 static void
917 est_identify(driver_t *driver, device_t parent)
918 {
919 device_t child;
920
921 /*
922 * Defer to hwpstate if it is present. This priority logic
923 * should be replaced with normal newbus probing in the
924 * future.
925 */
926 intel_hwpstate_identify(NULL, parent);
927 if (device_find_child(parent, "hwpstate_intel", -1) != NULL)
928 return;
929
930 /* Make sure we're not being doubly invoked. */
931 if (device_find_child(parent, "est", -1) != NULL)
932 return;
933
934 /* Check that CPUID is supported and the vendor is Intel.*/
935 if (cpu_high == 0 || (cpu_vendor_id != CPU_VENDOR_INTEL &&
936 cpu_vendor_id != CPU_VENDOR_CENTAUR))
937 return;
938
939 /*
940 * Check if the CPU supports EST.
941 */
942 if (!(cpu_feature2 & CPUID2_EST))
943 return;
944
945 /*
946 * We add a child for each CPU since settings must be performed
947 * on each CPU in the SMP case.
948 */
949 child = BUS_ADD_CHILD(parent, 10, "est", -1);
950 if (child == NULL)
951 device_printf(parent, "add est child failed\n");
952 }
953
954 static int
955 est_probe(device_t dev)
956 {
957 device_t perf_dev;
958 uint64_t msr;
959 int error, type;
960
961 if (resource_disabled("est", 0))
962 return (ENXIO);
963
964 /*
965 * If the ACPI perf driver has attached and is not just offering
966 * info, let it manage things.
967 */
968 perf_dev = device_find_child(device_get_parent(dev), "acpi_perf", -1);
969 if (perf_dev && device_is_attached(perf_dev)) {
970 error = CPUFREQ_DRV_TYPE(perf_dev, &type);
971 if (error == 0 && (type & CPUFREQ_FLAG_INFO_ONLY) == 0)
972 return (ENXIO);
973 }
974
975 /* Attempt to enable SpeedStep if not currently enabled. */
976 msr = rdmsr(MSR_MISC_ENABLE);
977 if ((msr & MSR_SS_ENABLE) == 0) {
978 wrmsr(MSR_MISC_ENABLE, msr | MSR_SS_ENABLE);
979 if (bootverbose)
980 device_printf(dev, "enabling SpeedStep\n");
981
982 /* Check if the enable failed. */
983 msr = rdmsr(MSR_MISC_ENABLE);
984 if ((msr & MSR_SS_ENABLE) == 0) {
985 device_printf(dev, "failed to enable SpeedStep\n");
986 return (ENXIO);
987 }
988 }
989
990 device_set_desc(dev, "Enhanced SpeedStep Frequency Control");
991 return (0);
992 }
993
994 static int
995 est_attach(device_t dev)
996 {
997 struct est_softc *sc;
998
999 sc = device_get_softc(dev);
1000 sc->dev = dev;
1001
1002 /* On SMP system we can't guarantie independent freq setting. */
1003 if (strict == -1 && mp_ncpus > 1)
1004 strict = 0;
1005 /* Check CPU for supported settings. */
1006 if (est_get_info(dev))
1007 return (ENXIO);
1008
1009 cpufreq_register(dev);
1010 return (0);
1011 }
1012
1013 static int
1014 est_detach(device_t dev)
1015 {
1016 struct est_softc *sc;
1017 int error;
1018
1019 error = cpufreq_unregister(dev);
1020 if (error)
1021 return (error);
1022
1023 sc = device_get_softc(dev);
1024 if (sc->acpi_settings || sc->msr_settings)
1025 free(sc->freq_list, M_DEVBUF);
1026 return (0);
1027 }
1028
1029 /*
1030 * Probe for supported CPU settings. First, check our static table of
1031 * settings. If no match, try using the ones offered by acpi_perf
1032 * (i.e., _PSS). We use ACPI second because some systems (IBM R/T40
1033 * series) export both legacy SMM IO-based access and direct MSR access
1034 * but the direct access specifies invalid values for _PSS.
1035 */
1036 static int
1037 est_get_info(device_t dev)
1038 {
1039 struct est_softc *sc;
1040 uint64_t msr;
1041 int error;
1042
1043 sc = device_get_softc(dev);
1044 msr = rdmsr(MSR_PERF_STATUS);
1045 error = est_table_info(dev, msr, &sc->freq_list, &sc->flist_len);
1046 if (error)
1047 error = est_acpi_info(dev, &sc->freq_list, &sc->flist_len);
1048 if (error)
1049 error = est_msr_info(dev, msr, &sc->freq_list, &sc->flist_len);
1050
1051 if (error) {
1052 printf(
1053 "est: CPU supports Enhanced Speedstep, but is not recognized.\n"
1054 "est: cpu_vendor %s, msr %0jx\n", cpu_vendor, msr);
1055 return (ENXIO);
1056 }
1057
1058 return (0);
1059 }
1060
1061 static int
1062 est_acpi_info(device_t dev, freq_info **freqs, size_t *freqslen)
1063 {
1064 struct est_softc *sc;
1065 struct cf_setting *sets;
1066 freq_info *table;
1067 device_t perf_dev;
1068 int count, error, i, j;
1069 uint16_t saved_id16;
1070
1071 perf_dev = device_find_child(device_get_parent(dev), "acpi_perf", -1);
1072 if (perf_dev == NULL || !device_is_attached(perf_dev))
1073 return (ENXIO);
1074
1075 /* Fetch settings from acpi_perf. */
1076 sc = device_get_softc(dev);
1077 table = NULL;
1078 sets = malloc(MAX_SETTINGS * sizeof(*sets), M_TEMP, M_NOWAIT);
1079 if (sets == NULL)
1080 return (ENOMEM);
1081 count = MAX_SETTINGS;
1082 error = CPUFREQ_DRV_SETTINGS(perf_dev, sets, &count);
1083 if (error)
1084 goto out;
1085
1086 /* Parse settings into our local table format. */
1087 table = malloc(count * sizeof(*table), M_DEVBUF, M_NOWAIT);
1088 if (table == NULL) {
1089 error = ENOMEM;
1090 goto out;
1091 }
1092 est_get_id16(&saved_id16);
1093 for (i = 0, j = 0; i < count; i++) {
1094 /*
1095 * Confirm id16 value is correct.
1096 */
1097 if (sets[i].freq > 0) {
1098 error = est_set_id16(dev, sets[i].spec[0], strict);
1099 if (error != 0) {
1100 if (bootverbose)
1101 device_printf(dev, "Invalid freq %u, "
1102 "ignored.\n", sets[i].freq);
1103 continue;
1104 }
1105 table[j].freq = sets[i].freq;
1106 table[j].volts = sets[i].volts;
1107 table[j].id16 = sets[i].spec[0];
1108 table[j].power = sets[i].power;
1109 ++j;
1110 }
1111 }
1112 /* restore saved setting */
1113 est_set_id16(dev, saved_id16, 0);
1114
1115 sc->acpi_settings = TRUE;
1116 *freqs = table;
1117 *freqslen = j;
1118 error = 0;
1119
1120 out:
1121 if (sets)
1122 free(sets, M_TEMP);
1123 if (error && table)
1124 free(table, M_DEVBUF);
1125 return (error);
1126 }
1127
1128 static int
1129 est_table_info(device_t dev, uint64_t msr, freq_info **freqs, size_t *freqslen)
1130 {
1131 cpu_info *p;
1132 uint32_t id;
1133
1134 /* Find a table which matches (vendor, id32). */
1135 id = msr >> 32;
1136 for (p = ESTprocs; p->id32 != 0; p++) {
1137 if (p->vendor_id == cpu_vendor_id && p->id32 == id)
1138 break;
1139 }
1140 if (p->id32 == 0)
1141 return (EOPNOTSUPP);
1142
1143 /* Make sure the current setpoint is valid. */
1144 if (est_get_current(p->freqtab, p->tablen) == NULL) {
1145 device_printf(dev, "current setting not found in table\n");
1146 return (EOPNOTSUPP);
1147 }
1148
1149 *freqs = p->freqtab;
1150 *freqslen = p->tablen;
1151 return (0);
1152 }
1153
1154 static int
1155 bus_speed_ok(int bus)
1156 {
1157
1158 switch (bus) {
1159 case 100:
1160 case 133:
1161 case 333:
1162 return (1);
1163 default:
1164 return (0);
1165 }
1166 }
1167
1168 /*
1169 * Flesh out a simple rate table containing the high and low frequencies
1170 * based on the current clock speed and the upper 32 bits of the MSR.
1171 */
1172 static int
1173 est_msr_info(device_t dev, uint64_t msr, freq_info **freqs, size_t *freqslen)
1174 {
1175 struct est_softc *sc;
1176 freq_info *fp;
1177 int bus, freq, volts;
1178 uint16_t id;
1179
1180 if (!msr_info_enabled)
1181 return (EOPNOTSUPP);
1182
1183 /* Figure out the bus clock. */
1184 freq = atomic_load_acq_64(&tsc_freq) / 1000000;
1185 id = msr >> 32;
1186 bus = freq / (id >> 8);
1187 device_printf(dev, "Guessed bus clock (high) of %d MHz\n", bus);
1188 if (!bus_speed_ok(bus)) {
1189 /* We may be running on the low frequency. */
1190 id = msr >> 48;
1191 bus = freq / (id >> 8);
1192 device_printf(dev, "Guessed bus clock (low) of %d MHz\n", bus);
1193 if (!bus_speed_ok(bus))
1194 return (EOPNOTSUPP);
1195
1196 /* Calculate high frequency. */
1197 id = msr >> 32;
1198 freq = ((id >> 8) & 0xff) * bus;
1199 }
1200
1201 /* Fill out a new freq table containing just the high and low freqs. */
1202 sc = device_get_softc(dev);
1203 fp = malloc(sizeof(freq_info) * 2, M_DEVBUF, M_WAITOK | M_ZERO);
1204
1205 /* First, the high frequency. */
1206 volts = id & 0xff;
1207 if (volts != 0) {
1208 volts <<= 4;
1209 volts += 700;
1210 }
1211 fp[0].freq = freq;
1212 fp[0].volts = volts;
1213 fp[0].id16 = id;
1214 fp[0].power = CPUFREQ_VAL_UNKNOWN;
1215 device_printf(dev, "Guessed high setting of %d MHz @ %d Mv\n", freq,
1216 volts);
1217
1218 /* Second, the low frequency. */
1219 id = msr >> 48;
1220 freq = ((id >> 8) & 0xff) * bus;
1221 volts = id & 0xff;
1222 if (volts != 0) {
1223 volts <<= 4;
1224 volts += 700;
1225 }
1226 fp[1].freq = freq;
1227 fp[1].volts = volts;
1228 fp[1].id16 = id;
1229 fp[1].power = CPUFREQ_VAL_UNKNOWN;
1230 device_printf(dev, "Guessed low setting of %d MHz @ %d Mv\n", freq,
1231 volts);
1232
1233 /* Table is already terminated due to M_ZERO. */
1234 sc->msr_settings = TRUE;
1235 *freqs = fp;
1236 *freqslen = 2;
1237 return (0);
1238 }
1239
1240 static void
1241 est_get_id16(uint16_t *id16_p)
1242 {
1243 *id16_p = rdmsr(MSR_PERF_STATUS) & 0xffff;
1244 }
1245
1246 static int
1247 est_set_id16(device_t dev, uint16_t id16, int need_check)
1248 {
1249 uint64_t msr;
1250 uint16_t new_id16;
1251 int ret = 0;
1252
1253 /* Read the current register, mask out the old, set the new id. */
1254 msr = rdmsr(MSR_PERF_CTL);
1255 msr = (msr & ~0xffff) | id16;
1256 wrmsr(MSR_PERF_CTL, msr);
1257
1258 if (need_check) {
1259 /* Wait a short while and read the new status. */
1260 DELAY(EST_TRANS_LAT);
1261 est_get_id16(&new_id16);
1262 if (new_id16 != id16) {
1263 if (bootverbose)
1264 device_printf(dev, "Invalid id16 (set, cur) "
1265 "= (%u, %u)\n", id16, new_id16);
1266 ret = ENXIO;
1267 }
1268 }
1269 return (ret);
1270 }
1271
1272 static freq_info *
1273 est_get_current(freq_info *freq_list, size_t tablen)
1274 {
1275 freq_info *f;
1276 int i;
1277 uint16_t id16;
1278
1279 /*
1280 * Try a few times to get a valid value. Sometimes, if the CPU
1281 * is in the middle of an asynchronous transition (i.e., P4TCC),
1282 * we get a temporary invalid result.
1283 */
1284 for (i = 0; i < 5; i++) {
1285 est_get_id16(&id16);
1286 for (f = freq_list; f < freq_list + tablen; f++) {
1287 if (f->id16 == id16)
1288 return (f);
1289 }
1290 DELAY(100);
1291 }
1292 return (NULL);
1293 }
1294
1295 static int
1296 est_settings(device_t dev, struct cf_setting *sets, int *count)
1297 {
1298 struct est_softc *sc;
1299 freq_info *f;
1300 int i;
1301
1302 sc = device_get_softc(dev);
1303 if (*count < EST_MAX_SETTINGS)
1304 return (E2BIG);
1305
1306 i = 0;
1307 for (f = sc->freq_list; f < sc->freq_list + sc->flist_len; f++, i++) {
1308 sets[i].freq = f->freq;
1309 sets[i].volts = f->volts;
1310 sets[i].power = f->power;
1311 sets[i].lat = EST_TRANS_LAT;
1312 sets[i].dev = dev;
1313 }
1314 *count = i;
1315
1316 return (0);
1317 }
1318
1319 static int
1320 est_set(device_t dev, const struct cf_setting *set)
1321 {
1322 struct est_softc *sc;
1323 freq_info *f;
1324
1325 /* Find the setting matching the requested one. */
1326 sc = device_get_softc(dev);
1327 for (f = sc->freq_list; f < sc->freq_list + sc->flist_len; f++) {
1328 if (f->freq == set->freq)
1329 break;
1330 }
1331 if (f->freq == 0)
1332 return (EINVAL);
1333
1334 /* Read the current register, mask out the old, set the new id. */
1335 est_set_id16(dev, f->id16, 0);
1336
1337 return (0);
1338 }
1339
1340 static int
1341 est_get(device_t dev, struct cf_setting *set)
1342 {
1343 struct est_softc *sc;
1344 freq_info *f;
1345
1346 sc = device_get_softc(dev);
1347 f = est_get_current(sc->freq_list, sc->flist_len);
1348 if (f == NULL)
1349 return (ENXIO);
1350
1351 set->freq = f->freq;
1352 set->volts = f->volts;
1353 set->power = f->power;
1354 set->lat = EST_TRANS_LAT;
1355 set->dev = dev;
1356 return (0);
1357 }
1358
1359 static int
1360 est_type(device_t dev, int *type)
1361 {
1362
1363 if (type == NULL)
1364 return (EINVAL);
1365
1366 *type = CPUFREQ_TYPE_ABSOLUTE;
1367 return (0);
1368 }
Cache object: f988a071042c68dc39634fdb020751bc
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