diff options
author | Jens Axboe <axboe@kernel.dk> | 2011-10-19 14:30:42 +0200 |
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committer | Jens Axboe <axboe@kernel.dk> | 2011-10-19 14:30:42 +0200 |
commit | 5c04b426f2e8b46cfc7969a35b2631063a3c646c (patch) | |
tree | 2d27d9f5d2fe5d5e8fbc01a467ec58bcb50235c1 /Documentation/hwmon/coretemp | |
parent | 499337bb6511e665a236a6a947f819d98ea340c6 (diff) | |
parent | 899e3ee404961a90b828ad527573aaaac39f0ab1 (diff) |
Merge branch 'v3.1-rc10' into for-3.2/core
Conflicts:
block/blk-core.c
include/linux/blkdev.h
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/hwmon/coretemp')
-rw-r--r-- | Documentation/hwmon/coretemp | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp index fa8776ab9b18..84d46c0c71a3 100644 --- a/Documentation/hwmon/coretemp +++ b/Documentation/hwmon/coretemp @@ -35,13 +35,6 @@ the Out-Of-Spec bit. Following table summarizes the exported sysfs files: All Sysfs entries are named with their core_id (represented here by 'X'). tempX_input - Core temperature (in millidegrees Celsius). tempX_max - All cooling devices should be turned on (on Core2). - Initialized with IA32_THERM_INTERRUPT. When the CPU - temperature reaches this temperature, an interrupt is - generated and tempX_max_alarm is set. -tempX_max_hyst - If the CPU temperature falls below than temperature, - an interrupt is generated and tempX_max_alarm is reset. -tempX_max_alarm - Set if the temperature reaches or exceeds tempX_max. - Reset if the temperature drops to or below tempX_max_hyst. tempX_crit - Maximum junction temperature (in millidegrees Celsius). tempX_crit_alarm - Set when Out-of-spec bit is set, never clears. Correct CPU operation is no longer guaranteed. @@ -49,9 +42,10 @@ tempX_label - Contains string "Core X", where X is processor number. For Package temp, this will be "Physical id Y", where Y is the package number. -The TjMax temperature is set to 85 degrees C if undocumented model specific -register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as -(sometimes) documented in processor datasheet. +On CPU models which support it, TjMax is read from a model-specific register. +On other models, it is set to an arbitrary value based on weak heuristics. +If these heuristics don't work for you, you can pass the correct TjMax value +as a module parameter (tjmax). Appendix A. Known TjMax lists (TBD): Some information comes from ark.intel.com |