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| author | Durgadoss R <durgadoss.r@intel.com> | 2011-07-12 07:07:16 -0400 |
|---|---|---|
| committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-07-28 00:17:36 -0700 |
| commit | c814a4c7c4aad795835583344353963a0a673eb0 (patch) | |
| tree | dbf51076911e529ce082049d26323b560cb7b1f2 /Documentation/hwmon | |
| parent | 8c1d04192e2ef1e6d38e9d5e9c500e5330d20339 (diff) | |
| download | linux-c814a4c7c4aad795835583344353963a0a673eb0.tar.bz2 | |
hwmon: (coretemp) Add core/pkg threshold support to Coretemp
This patch adds the core and pkg support to coretemp.
These thresholds can be configured via the sysfs interfaces tempX_max
and tempX_max_hyst. An interrupt is generated when CPU temperature reaches
or crosses above tempX_max OR drops below tempX_max_hyst.
This patch is based on the documentation in IA Manual vol 3A, that can be
downloaded from here:
http://download.intel.com/design/processor/manuals/253668.pdf
Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/coretemp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp index f85e913a3401..fa8776ab9b18 100644 --- a/Documentation/hwmon/coretemp +++ b/Documentation/hwmon/coretemp @@ -35,6 +35,13 @@ 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. |