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| author | Len Brown <len.brown@intel.com> | 2007-08-14 15:49:32 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2007-08-14 15:49:32 -0400 |
| commit | c52a7419af18594426bc601d1ea346dbbcf71e28 (patch) | |
| tree | b964b0de460e3508e092efa3b69fbc7267aef735 /Documentation | |
| parent | 3c1d36da1d5ed36979340efd233ddaacc45b0a02 (diff) | |
| download | linux-c52a7419af18594426bc601d1ea346dbbcf71e28.tar.gz linux-c52a7419af18594426bc601d1ea346dbbcf71e28.tar.bz2 linux-c52a7419af18594426bc601d1ea346dbbcf71e28.zip | |
ACPI: thermal: create "thermal.crt=C" bootparam
Some hardware will malfunction at a temperature below
the BIOS provided critical shutdown threshold.
This hook allows moving the critical trip points down
to a temperature which provokes a graceful shutdown
before the hardware malfunction.
http://bugzilla.kernel.org/show_bug.cgi?id=8884
WARNING: A trip-point override will not get noticed
until the system delivers a temperature change event,
or unless thermal zone polling is enabled.
eg. "thermal.tzp=10"
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 975f029be25c..18dcfdd29df0 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1826,6 +1826,10 @@ and is between 256 and 4096 characters. It is defined in the file -1: disable all active trip points in all thermal zones <degrees C>: override all lowest active trip points + thermal.crt= [HW,ACPI] + -1: disable all critical trip points in all thermal zones + <degrees C>: lower all critical trip points + thermal.nocrt= [HW,ACPI] Set to disable actions on ACPI thermal zone critical and hot trip points. |