1 files changed, 14 insertions, 7 deletions

diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp
index 25568f844804..f85e913a3401 100644
--- a/Documentation/hwmon/coretemp
+++ b/Documentation/hwmon/coretemp
@@ -15,8 +15,13 @@ Author: Rudolf Marek
 
 Description
 -----------
+This driver permits reading the DTS (Digital Temperature Sensor) embedded
+inside Intel CPUs. This driver can read both the per-core and per-package
+temperature using the appropriate sensors. The per-package sensor is new;
+as of now, it is present only in the SandyBridge platform. The driver will
+show the temperature of all cores inside a package under a single device
+directory inside hwmon.
 
-This driver permits reading temperature sensor embedded inside Intel Core CPU.
 Temperature is measured in degrees Celsius and measurement resolution is
 1 degree C. Valid temperatures are from 0 to TjMax degrees C, because
 the actual value of temperature register is in fact a delta from TjMax.
@@ -27,13 +32,15 @@ mechanism will perform actions to forcibly cool down the processor. Alarm
 may be raised, if the temperature grows enough (more than TjMax) to trigger
 the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
 
-temp1_input      - Core temperature (in millidegrees Celsius).
-temp1_max        - All cooling devices should be turned on (on Core2).
-temp1_crit       - Maximum junction temperature (in millidegrees Celsius).
-temp1_crit_alarm - Set when Out-of-spec bit is set, never clears.
+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).
+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.
-temp1_label      - Contains string "Core X", where X is processor
-                   number.
+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