Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-06 05:06:29 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

hwmon: (coretemp) Further relax temperature range checks

Browse Source 
Further relax temperature range checks after reading the IA32_TEMPERATURE_TARGET
register. If the register returns a value other than 0 in bits 16..32, assume
that the returned value is correct.

This change applies to both packet and core temperature limits.

Cc: Carsten Emde <C.Emde@osadl.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
This commit is contained in:
Guenter Roeck 2011-06-01 11:03:41 -07:00
parent 4f5f71a7ab
commit bb9973e4e7
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/hwmon/coretemp.c
View File

@ -296,7 +296,7 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
* If the TjMax is not plausible, an assumption
* will be used
*/
if (val >= 70 && val <= 125) {
if (val) {
dev_info(dev, "TjMax is %d C.\n", val);
return val * 1000;
}
@ -326,7 +326,7 @@ static int get_pkg_tjmax(unsigned int cpu, struct device *dev)
err = rdmsr_safe_on_cpu(cpu, MSR_IA32_TEMPERATURE_TARGET, &eax, &edx);
if (!err) {
val = (eax >> 16) & 0xff;
if (val > 80 && val < 120)
if (val)
return val * 1000;
}
dev_warn(dev, "Unable to read Pkg-TjMax from CPU:%u\n", cpu);