hwmon: coretemp: documentation update and cleanup
Update coretemp supported CPU TjMax lists and some cleanup work. Signed-off-by: Chen Gong <gong.chen@linux.intel.com> Cc: Rudolf Marek <r.marek@assembler.cz> Cc: Huaxu Wan <huaxu.wan@intel.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Chen Gong
Linus Torvalds
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commit
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@ -21,8 +21,8 @@ Temperature is measured in degrees Celsius and measurement resolution is
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1 degree C. Valid temperatures are from 0 to TjMax degrees C, because
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the actual value of temperature register is in fact a delta from TjMax.
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Temperature known as TjMax is the maximum junction temperature of processor.
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Intel defines this temperature as 85C or 100C. At this temperature, protection
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Temperature known as TjMax is the maximum junction temperature of processor,
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which depends on the CPU model. See table below. At this temperature, protection
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mechanism will perform actions to forcibly cool down the processor. Alarm
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may be raised, if the temperature grows enough (more than TjMax) to trigger
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the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
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@ -38,3 +38,104 @@ temp1_label - Contains string "Core X", where X is processor
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The TjMax temperature is set to 85 degrees C if undocumented model specific
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register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as
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(sometimes) documented in processor datasheet.
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Appendix A. Known TjMax lists (TBD):
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Some information comes from ark.intel.com
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Process Processor TjMax(C)
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32nm Core i3/i5/i7 Processors
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i7 660UM/640/620, 640LM/620, 620M, 610E 105
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i5 540UM/520/430, 540M/520/450/430 105
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i3 330E, 370M/350/330 90 rPGA, 105 BGA
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i3 330UM 105
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32nm Core i7 Extreme Processors
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980X 100
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32nm Celeron Processors
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U3400 105
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P4505/P4500 90
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45nm Xeon Processors 5400 Quad-Core
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X5492, X5482, X5472, X5470, X5460, X5450 85
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E5472, E5462, E5450/40/30/20/10/05 85
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L5408 95
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L5430, L5420, L5410 70
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45nm Xeon Processors 5200 Dual-Core
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X5282, X5272, X5270, X5260 90
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E5240 90
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E5205, E5220 70, 90
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L5240 70
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L5238, L5215 95
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45nm Atom Processors
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D525/510/425/410 100
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Z560/550/540/530P/530/520PT/520/515/510PT/510P 90
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Z510/500 90
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N475/470/455/450 100
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N280/270 90
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330/230 125
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45nm Core2 Processors
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Solo ULV SU3500/3300 100
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T9900/9800/9600/9550/9500/9400/9300/8300/8100 105
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T6670/6500/6400 105
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T6600 90
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SU9600/9400/9300 105
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SP9600/9400 105
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SL9600/9400/9380/9300 105
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P9700/9600/9500/8800/8700/8600/8400/7570 105
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P7550/7450 90
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45nm Core2 Quad Processors
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Q9100/9000 100
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45nm Core2 Extreme Processors
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X9100/9000 105
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QX9300 100
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45nm Core i3/i5/i7 Processors
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i7 940XM/920 100
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i7 840QM/820/740/720 100
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45nm Celeron Processors
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SU2300 100
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900 105
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65nm Core2 Duo Processors
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Solo U2200, U2100 100
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U7700/7600/7500 100
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T7800/7700/7600/7500/7400/7300/7250/7200/7100 100
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T5870/5670/5600/5550/5500/5470/5450/5300/5270 100
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T5250 100
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T5800/5750/5200 85
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L7700/7500/7400/7300/7200 100
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65nm Core2 Extreme Processors
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X7900/7800 100
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65nm Core Duo Processors
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U2500/2400 100
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T2700/2600/2450/2400/2350/2300E/2300/2250/2050 100
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L2500/2400/2300 100
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65nm Core Solo Processors
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U1500/1400/1300 100
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T1400/1350/1300/1250 100
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65nm Xeon Processors 5000 Quad-Core
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X5000 90-95
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E5000 80
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L5000 70
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L5318 95
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65nm Xeon Processors 5000 Dual-Core
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5080, 5063, 5060, 5050, 5030 80-90
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5160, 5150, 5148, 5140, 5130, 5120, 5110 80
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L5138 100
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65nm Celeron Processors
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T1700/1600 100
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560/550/540/530 100
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@ -405,7 +405,7 @@ config SENSORS_CORETEMP
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help
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If you say yes here you get support for the temperature
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sensor inside your CPU. Most of the family 6 CPUs
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are supported. Check documentation/driver for details.
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are supported. Check Documentation/hwmon/coretemp for details.
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config SENSORS_PKGTEMP
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tristate "Intel processor package temperature sensor"
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