diff options
author | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-06-01 14:03:41 -0400 |
---|---|---|
committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-06-01 23:10:40 -0400 |
commit | bb9973e4e73f43bd86698483d0c3f7a362ff94ce (patch) | |
tree | 2595ca9c4a1dad5c12ad21947bf07bccb9c32a4c /drivers/hwmon | |
parent | 4f5f71a7abe329bdad81ee6a8e4545054a7cc30a (diff) |
hwmon: (coretemp) Further relax temperature range checks
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>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r-- | drivers/hwmon/coretemp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 1680977cfbaa..85e937984ff7 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c | |||
@@ -296,7 +296,7 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev) | |||
296 | * If the TjMax is not plausible, an assumption | 296 | * If the TjMax is not plausible, an assumption |
297 | * will be used | 297 | * will be used |
298 | */ | 298 | */ |
299 | if (val >= 70 && val <= 125) { | 299 | if (val) { |
300 | dev_info(dev, "TjMax is %d C.\n", val); | 300 | dev_info(dev, "TjMax is %d C.\n", val); |
301 | return val * 1000; | 301 | return val * 1000; |
302 | } | 302 | } |
@@ -326,7 +326,7 @@ static int get_pkg_tjmax(unsigned int cpu, struct device *dev) | |||
326 | err = rdmsr_safe_on_cpu(cpu, MSR_IA32_TEMPERATURE_TARGET, &eax, &edx); | 326 | err = rdmsr_safe_on_cpu(cpu, MSR_IA32_TEMPERATURE_TARGET, &eax, &edx); |
327 | if (!err) { | 327 | if (!err) { |
328 | val = (eax >> 16) & 0xff; | 328 | val = (eax >> 16) & 0xff; |
329 | if (val > 80 && val < 120) | 329 | if (val) |
330 | return val * 1000; | 330 | return val * 1000; |
331 | } | 331 | } |
332 | dev_warn(dev, "Unable to read Pkg-TjMax from CPU:%u\n", cpu); | 332 | dev_warn(dev, "Unable to read Pkg-TjMax from CPU:%u\n", cpu); |