Add bit masking to read ApmTdpLimit precisely Signed-off-by: Gioh Kim <gi-oh.kim@xxxxxxxxxxxxxxxx> --- drivers/hwmon/fam15h_power.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index f77eb97..4f695d8 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -90,7 +90,15 @@ static ssize_t show_power(struct device *dev, pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5), REG_TDP_LIMIT3, &val); - tdp_limit = val >> 16; + /* + * On Carrizo and later platforms, ApmTdpLimit bit field + * is extended to 16:31 from 16:28. + */ + if (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model >= 0x60) + tdp_limit = val >> 16; + else + tdp_limit = (val >> 16) & 0x1fff; + curr_pwr_watts = ((u64)(tdp_limit + data->base_tdp)) << running_avg_range; curr_pwr_watts -= running_avg_capture; -- 2.5.0 _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
