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1 | Index: linux-2.6.20-rc4/drivers/hwmon/coretemp.c |
2 | =================================================================== | |
3 | --- /dev/null 1970-01-01 00:00:00.000000000 +0000 | |
4 | +++ linux-2.6.20-rc4/drivers/hwmon/coretemp.c 2007-01-14 21:49:52.764871760 +0100 | |
5 | @@ -0,0 +1,472 @@ | |
6 | +/* | |
7 | + * coretemp.c - Linux kernel module for hardware monitoring | |
8 | + * | |
9 | + * Copyright (C) 2006 Rudolf Marek <r.marek@assembler.cz> | |
10 | + * | |
11 | + * Inspired from many hwmon drivers | |
12 | + * | |
13 | + * This program is free software; you can redistribute it and/or modify | |
14 | + * it under the terms of the GNU General Public License as published by | |
15 | + * the Free Software Foundation; either version 2 of the License, or | |
16 | + * (at your option) any later version. | |
17 | + * | |
18 | + * This program is distributed in the hope that it will be useful, | |
19 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | + * GNU General Public License for more details. | |
22 | + * | |
23 | + * You should have received a copy of the GNU General Public License | |
24 | + * along with this program; if not, write to the Free Software | |
25 | + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
26 | + * 02110-1301 USA. | |
27 | + */ | |
28 | + | |
29 | +#include <linux/module.h> | |
30 | +#include <linux/delay.h> | |
31 | +#include <linux/init.h> | |
32 | +#include <linux/slab.h> | |
33 | +#include <linux/jiffies.h> | |
34 | +#include <linux/hwmon.h> | |
35 | +#include <linux/sysfs.h> | |
36 | +#include <linux/hwmon-sysfs.h> | |
37 | +#include <linux/err.h> | |
38 | +#include <linux/mutex.h> | |
39 | +#include <linux/list.h> | |
40 | +#include <linux/platform_device.h> | |
41 | +#include <linux/cpu.h> | |
42 | +#include <asm/msr.h> | |
43 | +#include <asm/processor.h> | |
44 | + | |
45 | +#define DRVNAME "coretemp" | |
46 | + | |
47 | +/* | |
48 | + Following part ripped from the msr.c. It should be merged with generic MSR | |
49 | + infrastructure (once ready) | |
50 | +*/ | |
51 | + | |
52 | +static inline int rdmsr_eio(u32 reg, u32 *eax, u32 *edx) | |
53 | +{ | |
54 | + int err; | |
55 | + | |
56 | + err = rdmsr_safe(reg, eax, edx); | |
57 | + if (err) | |
58 | + err = -EIO; | |
59 | + return err; | |
60 | +} | |
61 | + | |
62 | +#ifdef CONFIG_SMP | |
63 | + | |
64 | +struct msr_command { | |
65 | + int cpu; | |
66 | + int err; | |
67 | + u32 reg; | |
68 | + u32 data[2]; | |
69 | +}; | |
70 | + | |
71 | +static void msr_smp_rdmsr(void *cmd_block) | |
72 | +{ | |
73 | + struct msr_command *cmd = (struct msr_command *)cmd_block; | |
74 | + | |
75 | + if (cmd->cpu == smp_processor_id()) | |
76 | + cmd->err = rdmsr_eio(cmd->reg, &cmd->data[0], &cmd->data[1]); | |
77 | +} | |
78 | + | |
79 | +static inline int msr_read(int cpu, u32 reg, u32 * eax, u32 * edx) | |
80 | +{ | |
81 | + struct msr_command cmd; | |
82 | + int ret; | |
83 | + | |
84 | + preempt_disable(); | |
85 | + if (cpu == smp_processor_id()) { | |
86 | + ret = rdmsr_eio(reg, eax, edx); | |
87 | + } else { | |
88 | + cmd.cpu = cpu; | |
89 | + cmd.reg = reg; | |
90 | + | |
91 | + smp_call_function(msr_smp_rdmsr, &cmd, 1, 1); | |
92 | + | |
93 | + *eax = cmd.data[0]; | |
94 | + *edx = cmd.data[1]; | |
95 | + | |
96 | + ret = cmd.err; | |
97 | + } | |
98 | + preempt_enable(); | |
99 | + return ret; | |
100 | +} | |
101 | + | |
102 | +#else /* ! CONFIG_SMP */ | |
103 | + | |
104 | +static inline int msr_read(int cpu, u32 reg, u32 *eax, u32 *edx) | |
105 | +{ | |
106 | + return rdmsr_eio(reg, eax, edx); | |
107 | +} | |
108 | + | |
109 | +#endif /* ! CONFIG_SMP */ | |
110 | + | |
111 | +/* cut here */ | |
112 | + | |
113 | +typedef enum { SHOW_TEMP, SHOW_TJMAX, SHOW_LABEL, SHOW_NAME } SHOW; | |
114 | + | |
115 | +/* | |
116 | + * Functions declaration | |
117 | + */ | |
118 | + | |
119 | +static struct coretemp_data *coretemp_update_device(struct device *dev); | |
120 | + | |
121 | +struct coretemp_data { | |
122 | + struct class_device *class_dev; | |
123 | + struct mutex update_lock; | |
124 | + const char *name; | |
125 | + u32 id; | |
126 | + char valid; /* zero until following fields are valid */ | |
127 | + unsigned long last_updated; /* in jiffies */ | |
128 | + int temp; | |
129 | + int tjmax; | |
130 | + /* registers values */ | |
131 | + u32 therm_status; | |
132 | +}; | |
133 | + | |
134 | +static struct coretemp_data *coretemp_update_device(struct device *dev); | |
135 | + | |
136 | +/* | |
137 | + * Sysfs stuff | |
138 | + */ | |
139 | + | |
140 | +static ssize_t show_name(struct device *dev, struct device_attribute | |
141 | + *devattr, char *buf) | |
142 | +{ | |
143 | + int ret; | |
144 | + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
145 | + struct coretemp_data *data = dev_get_drvdata(dev); | |
146 | + | |
147 | + if (attr->index == SHOW_NAME) | |
148 | + ret = sprintf(buf, "%s\n", data->name); | |
149 | + else /* show label */ | |
150 | + ret = sprintf(buf, "Core %d\n", data->id); | |
151 | + return ret; | |
152 | +} | |
153 | + | |
154 | +static ssize_t show_alarm(struct device *dev, struct device_attribute | |
155 | + *devattr, char *buf) | |
156 | +{ | |
157 | + struct coretemp_data *data = coretemp_update_device(dev); | |
158 | + /* read the Out-of-spec log, never clear */ | |
159 | + return sprintf(buf, "%d\n", (data->therm_status >> 5) & 1); | |
160 | +} | |
161 | + | |
162 | +static ssize_t show_temp(struct device *dev, | |
163 | + struct device_attribute *devattr, char *buf) | |
164 | +{ | |
165 | + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
166 | + struct coretemp_data *data = coretemp_update_device(dev); | |
167 | + return sprintf(buf, "%d\n", | |
168 | + attr->index == | |
169 | + SHOW_TEMP ? data->temp : data->tjmax); | |
170 | +} | |
171 | + | |
172 | +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, | |
173 | + SHOW_TEMP); | |
174 | +static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp, NULL, | |
175 | + SHOW_TJMAX); | |
176 | +static DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL); | |
177 | +static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, show_name, NULL, SHOW_LABEL); | |
178 | +static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, SHOW_NAME); | |
179 | + | |
180 | +static struct attribute *coretemp_attributes[] = { | |
181 | + &sensor_dev_attr_name.dev_attr.attr, | |
182 | + &sensor_dev_attr_temp1_label.dev_attr.attr, | |
183 | + &dev_attr_temp1_crit_alarm.attr, | |
184 | + &sensor_dev_attr_temp1_input.dev_attr.attr, | |
185 | + &sensor_dev_attr_temp1_crit.dev_attr.attr, | |
186 | + NULL | |
187 | +}; | |
188 | + | |
189 | +static const struct attribute_group coretemp_group = { | |
190 | + .attrs = coretemp_attributes, | |
191 | +}; | |
192 | + | |
193 | +static struct coretemp_data *coretemp_update_device(struct device *dev) | |
194 | +{ | |
195 | + struct coretemp_data *data = dev_get_drvdata(dev); | |
196 | + | |
197 | + mutex_lock(&data->update_lock); | |
198 | + | |
199 | + if (!data->valid || time_after(jiffies, data->last_updated + HZ)) { | |
200 | + u32 eax, edx; | |
201 | + | |
202 | + data->valid = 0; | |
203 | + msr_read(data->id, MSR_IA32_THERM_STATUS, &eax, &edx); | |
204 | + data->therm_status = eax; | |
205 | + | |
206 | + /* update only if data has been valid */ | |
207 | + if (eax & 0x80000000) { | |
208 | + data->temp = data->tjmax - (((data->therm_status >> 16) | |
209 | + & 0x7f) * 1000); | |
210 | + data->valid = 1; | |
211 | + } | |
212 | + data->last_updated = jiffies; | |
213 | + } | |
214 | + | |
215 | + mutex_unlock(&data->update_lock); | |
216 | + return data; | |
217 | +} | |
218 | + | |
219 | +static int __devinit coretemp_probe(struct platform_device *pdev) | |
220 | +{ | |
221 | + struct coretemp_data *data; | |
222 | + struct cpuinfo_x86 *c = &(cpu_data)[pdev->id]; | |
223 | + int err; | |
224 | + u32 eax, edx; | |
225 | + | |
226 | + if (!(data = kzalloc(sizeof(struct coretemp_data), GFP_KERNEL))) { | |
227 | + err = -ENOMEM; | |
228 | + dev_err(&pdev->dev, "Out of memory\n"); | |
229 | + goto exit; | |
230 | + } | |
231 | + | |
232 | + data->id = pdev->id; | |
233 | + data->name = "coretemp"; | |
234 | + mutex_init(&data->update_lock); | |
235 | + /* Tjmax default is 100C */ | |
236 | + data->tjmax = 100000; | |
237 | + | |
238 | + /* Some processors have Tjmax 85 following magic should detect it | |
239 | + Intel won't disclose the information without signed NDA, but | |
240 | + individuals cannot sign it. Catch(ed) 22. | |
241 | + */ | |
242 | + | |
243 | + if (((c->x86_model == 0xf) && (c->x86_mask > 3 )) || | |
244 | + (c->x86_model == 0xe)) { | |
245 | + | |
246 | + err = msr_read(data->id, 0xee, &eax, &edx); | |
247 | + if (err) { | |
248 | + dev_warn(&pdev->dev, | |
249 | + "Unable to access MSR 0xEE, Tjmax left at %d\n", | |
250 | + data->tjmax); | |
251 | + } else if (eax & 0x40000000) { | |
252 | + data->tjmax = 85000; | |
253 | + } | |
254 | + } | |
255 | + | |
256 | + /* test if we can access the THERM_STATUS MSR */ | |
257 | + err = msr_read(data->id, MSR_IA32_THERM_STATUS, &eax, &edx); | |
258 | + | |
259 | + if (err) { | |
260 | + dev_err(&pdev->dev, | |
261 | + "Unable to access THERM_STATUS MSR, giving up\n"); | |
262 | + goto exit_free; | |
263 | + } | |
264 | + platform_set_drvdata(pdev, data); | |
265 | + | |
266 | + if ((err = sysfs_create_group(&pdev->dev.kobj, &coretemp_group))) | |
267 | + goto exit_free; | |
268 | + | |
269 | + data->class_dev = hwmon_device_register(&pdev->dev); | |
270 | + if (IS_ERR(data->class_dev)) { | |
271 | + err = PTR_ERR(data->class_dev); | |
272 | + dev_err(&pdev->dev, "Class registration failed (%d)\n", | |
273 | + err); | |
274 | + goto exit_class; | |
275 | + } | |
276 | + | |
277 | + dev_warn(&pdev->dev, "This driver uses undocumented features of Core " | |
278 | + "CPU (Intel will not disclose the information to " | |
279 | + "individuals). Temperature might be wrong!\n"); | |
280 | + return 0; | |
281 | + | |
282 | +exit_class: | |
283 | + sysfs_remove_group(&pdev->dev.kobj, &coretemp_group); | |
284 | +exit_free: | |
285 | + kfree(data); | |
286 | +exit: | |
287 | + return err; | |
288 | +} | |
289 | + | |
290 | +static int __devexit coretemp_remove(struct platform_device *pdev) | |
291 | +{ | |
292 | + struct coretemp_data *data = platform_get_drvdata(pdev); | |
293 | + | |
294 | + hwmon_device_unregister(data->class_dev); | |
295 | + sysfs_remove_group(&pdev->dev.kobj, &coretemp_group); | |
296 | + platform_set_drvdata(pdev, NULL); | |
297 | + kfree(data); | |
298 | + return 0; | |
299 | +} | |
300 | + | |
301 | +static struct platform_driver coretemp_driver = { | |
302 | + .driver = { | |
303 | + .owner = THIS_MODULE, | |
304 | + .name = DRVNAME, | |
305 | + }, | |
306 | + .probe = coretemp_probe, | |
307 | + .remove = __devexit_p(coretemp_remove), | |
308 | +}; | |
309 | + | |
310 | +struct pdev_entry { | |
311 | + struct list_head list; | |
312 | + struct platform_device *pdev; | |
313 | + unsigned int cpu; | |
314 | +}; | |
315 | + | |
316 | +static LIST_HEAD(pdev_list); | |
317 | +static DEFINE_MUTEX(pdev_list_mutex); | |
318 | + | |
319 | +static int __cpuinit coretemp_devices_add(unsigned int cpu) | |
320 | +{ | |
321 | + int err; | |
322 | + struct platform_device *pdev; | |
323 | + struct pdev_entry *pdev_entry; | |
324 | + | |
325 | + pdev = platform_device_alloc(DRVNAME, cpu); | |
326 | + if (!pdev) { | |
327 | + err = -ENOMEM; | |
328 | + printk(KERN_ERR DRVNAME ": Device allocation failed\n"); | |
329 | + goto exit; | |
330 | + | |
331 | + } | |
332 | + | |
333 | + pdev_entry = kzalloc(sizeof(struct pdev_entry), GFP_KERNEL); | |
334 | + | |
335 | + if (!pdev_entry) { | |
336 | + err = -ENOMEM; | |
337 | + goto exit_device_put; | |
338 | + } | |
339 | + | |
340 | + err = platform_device_add(pdev); | |
341 | + | |
342 | + if (err) { | |
343 | + printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", | |
344 | + err); | |
345 | + goto exit_device_free; | |
346 | + } | |
347 | + | |
348 | + pdev_entry->pdev = pdev; | |
349 | + pdev_entry->cpu = cpu; | |
350 | + mutex_lock(&pdev_list_mutex); | |
351 | + list_add_tail(&pdev_entry->list, &pdev_list); | |
352 | + mutex_unlock(&pdev_list_mutex); | |
353 | + | |
354 | + return 0; | |
355 | + | |
356 | +exit_device_free: | |
357 | + kfree(pdev_entry); | |
358 | +exit_device_put: | |
359 | + platform_device_put(pdev); | |
360 | +exit: | |
361 | + return err; | |
362 | +} | |
363 | + | |
364 | +#ifdef CONFIG_HOTPLUG_CPU | |
365 | +void coretemp_devices_remove(unsigned int cpu) | |
366 | +{ | |
367 | + struct pdev_entry *p, *n; | |
368 | + mutex_lock(&pdev_list_mutex); | |
369 | + list_for_each_entry_safe(p, n, &pdev_list, list) { | |
370 | + if (p->cpu == cpu) { | |
371 | + platform_device_unregister(p->pdev); | |
372 | + list_del(&p->list); | |
373 | + kfree(p); | |
374 | + } | |
375 | + } | |
376 | + mutex_unlock(&pdev_list_mutex); | |
377 | +} | |
378 | + | |
379 | +static int coretemp_cpu_callback(struct notifier_block *nfb, | |
380 | + unsigned long action, void *hcpu) | |
381 | +{ | |
382 | + unsigned int cpu = (unsigned long) hcpu; | |
383 | + | |
384 | + switch (action) { | |
385 | + case CPU_ONLINE: | |
386 | + coretemp_devices_add(cpu); | |
387 | + break; | |
388 | + case CPU_DEAD: | |
389 | + coretemp_devices_remove(cpu); | |
390 | + break; | |
391 | + } | |
392 | + return NOTIFY_OK; | |
393 | +} | |
394 | + | |
395 | +static struct notifier_block __cpuinitdata coretemp_cpu_notifier = { | |
396 | + .notifier_call = coretemp_cpu_callback, | |
397 | +}; | |
398 | +#endif /* !CONFIG_HOTPLUG_CPU */ | |
399 | + | |
400 | +static int __init coretemp_init(void) | |
401 | +{ | |
402 | + int i, err = -ENODEV; | |
403 | + struct pdev_entry *p, *n; | |
404 | + | |
405 | + /* quick check if we run Intel */ | |
406 | + if (cpu_data[0].x86_vendor != X86_VENDOR_INTEL) | |
407 | + goto exit; | |
408 | + | |
409 | + err = platform_driver_register(&coretemp_driver); | |
410 | + if (err) | |
411 | + goto exit; | |
412 | + | |
413 | + for_each_online_cpu(i) { | |
414 | + struct cpuinfo_x86 *c = &(cpu_data)[i]; | |
415 | + | |
416 | + /* check if family 6, models e, f */ | |
417 | + if ((c->cpuid_level < 0) || (c->x86 != 0x6) || | |
418 | + !((c->x86_model == 0xe) || (c->x86_model == 0xf))) { | |
419 | + | |
420 | + /* supported CPU not found, but report the unknown | |
421 | + family 6 CPU */ | |
422 | + if ((c->x86 == 0x6) && (c->x86_model > 0xf)) | |
423 | + printk(KERN_WARNING DRVNAME ": Unknown CPU, please" | |
424 | + " report to the lm-sensors@lm-sensors.org\n"); | |
425 | + continue; | |
426 | + } | |
427 | + | |
428 | + err = coretemp_devices_add(i); | |
429 | + if (err) | |
430 | + goto exit_driver; | |
431 | + } | |
432 | + if (list_empty(&pdev_list)) { | |
433 | + err = -ENODEV; | |
434 | + goto exit_driver_unreg; | |
435 | + } | |
436 | + | |
437 | +#ifdef CONFIG_HOTPLUG_CPU | |
438 | + register_hotcpu_notifier(&coretemp_cpu_notifier); | |
439 | +#endif | |
440 | + return 0; | |
441 | + | |
442 | +exit_driver: | |
443 | + mutex_lock(&pdev_list_mutex); | |
444 | + list_for_each_entry_safe(p, n, &pdev_list, list) { | |
445 | + platform_device_unregister(p->pdev); | |
446 | + list_del(&p->list); | |
447 | + kfree(p); | |
448 | + } | |
449 | + mutex_unlock(&pdev_list_mutex); | |
450 | +exit_driver_unreg: | |
451 | + platform_driver_unregister(&coretemp_driver); | |
452 | +exit: | |
453 | + return err; | |
454 | +} | |
455 | + | |
456 | +static void __exit coretemp_exit(void) | |
457 | +{ | |
458 | + struct pdev_entry *p, *n; | |
459 | +#ifdef CONFIG_HOTPLUG_CPU | |
460 | + unregister_hotcpu_notifier(&coretemp_cpu_notifier); | |
461 | +#endif | |
462 | + mutex_lock(&pdev_list_mutex); | |
463 | + list_for_each_entry_safe(p, n, &pdev_list, list) { | |
464 | + platform_device_unregister(p->pdev); | |
465 | + list_del(&p->list); | |
466 | + kfree(p); | |
467 | + } | |
468 | + mutex_unlock(&pdev_list_mutex); | |
469 | + platform_driver_unregister(&coretemp_driver); | |
470 | +} | |
471 | + | |
472 | +MODULE_AUTHOR("Rudolf Marek <r.marek@assembler.cz>"); | |
473 | +MODULE_DESCRIPTION("Intel Core temperature monitor"); | |
474 | +MODULE_LICENSE("GPL"); | |
475 | + | |
476 | +module_init(coretemp_init) | |
477 | +module_exit(coretemp_exit) | |
478 | Index: linux-2.6.20-rc4/drivers/hwmon/Makefile | |
479 | =================================================================== | |
480 | --- linux-2.6.20-rc4.orig/drivers/hwmon/Makefile 2007-01-07 06:45:51.000000000 +0100 | |
481 | +++ linux-2.6.20-rc4/drivers/hwmon/Makefile 2007-01-14 21:29:41.899868496 +0100 | |
482 | @@ -21,6 +21,7 @@ | |
483 | obj-$(CONFIG_SENSORS_ADM9240) += adm9240.o | |
484 | obj-$(CONFIG_SENSORS_AMS) += ams/ | |
485 | obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o | |
486 | +obj-$(CONFIG_SENSORS_CORETEMP) += coretemp.o | |
487 | obj-$(CONFIG_SENSORS_DS1621) += ds1621.o | |
488 | obj-$(CONFIG_SENSORS_F71805F) += f71805f.o | |
489 | obj-$(CONFIG_SENSORS_FSCHER) += fscher.o | |
490 | Index: linux-2.6.20-rc4/drivers/hwmon/Kconfig | |
491 | =================================================================== | |
492 | --- linux-2.6.20-rc4.orig/drivers/hwmon/Kconfig 2007-01-07 06:45:51.000000000 +0100 | |
493 | +++ linux-2.6.20-rc4/drivers/hwmon/Kconfig 2007-01-14 21:40:33.336991782 +0100 | |
494 | @@ -156,6 +156,14 @@ | |
495 | This driver can also be built as a module. If so, the module | |
496 | will be called atxp1. | |
497 | ||
498 | +config SENSORS_CORETEMP | |
499 | + tristate "Intel Core (2) Duo/Solo temperature sensor" | |
500 | + depends on HWMON && X86 && EXPERIMENTAL | |
501 | + help | |
502 | + If you say yes here you get support for the temperature | |
503 | + sensor inside your CPU. Supported all are all known variants | |
504 | + of Intel Core family. | |
505 | + | |
506 | config SENSORS_DS1621 | |
507 | tristate "Dallas Semiconductor DS1621 and DS1625" | |
508 | depends on HWMON && I2C | |
509 | --- /dev/null 1970-01-01 00:00:00.000000000 +0000 | |
510 | +++ linux-2.6.20-rc4/Documentation/hwmon/coretemp 2007-01-14 22:01:58.766244221 +0100 | |
511 | @@ -0,0 +1,37 @@ | |
512 | +Kernel driver coretemp | |
513 | +====================== | |
514 | + | |
515 | +Supported chips: | |
516 | + * All Intel Core family | |
517 | + Prefix: 'coretemp' | |
518 | + Addresses scanned: CPUID (family 0x6, models 0xe, 0xf) | |
519 | + Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual | |
520 | + Volume 3A: System Programming Guide | |
521 | + | |
522 | +Author: Rudolf Marek | |
523 | +Contact: Rudolf Marek <r.marek@assembler.cz> | |
524 | + | |
525 | +Description | |
526 | +----------- | |
527 | + | |
528 | +This driver permits reading temperature sensor embedded inside Intel Core CPU. | |
529 | +Temperature is measured in degrees Celsius and measurement resolution is | |
530 | +1 degree C. Valid temperatures are from 0 to TjMax degrees C, because | |
531 | +the actual temperature is in fact a delta from TjMax. | |
532 | + | |
533 | +Temperature known as TjMax is the maximum junction temperature of processor. | |
534 | +Intel defines this temperature as 85C or 100C. At this temperature, protection | |
535 | +mechanism will perform actions to forcibly cool down the processor. Alarm | |
536 | +may be raised, if the temperature grows enough (more than TjMax) to trigger | |
537 | +the Out-Of-Spec bit. Following table summarizes the exported sysfs files: | |
538 | + | |
539 | +temp1_input - Core temperature (in milidegrees of Celsius). | |
540 | +temp1_crit - Maximum junction temperature (in milidegrees of Celsius). | |
541 | +temp1_crit_alarm - Set when Out-of-spec bit is set, never clears. | |
542 | + Correct CPU operation is no longer guaranteed. | |
543 | +temp1_label - Contains string with the "Core X", where X is processor | |
544 | + number. | |
545 | + | |
546 | +The TjMax temperature is set to 85C if undocumented model specific register | |
547 | +(UMSR) 0xee has bit 30 set. If not the TjMax is 100C as documented in processor | |
548 | +datasheet. Intel will not disclose this information to individuals. | |
549 |