diff options
Diffstat (limited to 'drivers/hwmon/k8temp.c')
| -rw-r--r-- | drivers/hwmon/k8temp.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c index bd2bde0ef95e..3b903845e12c 100644 --- a/drivers/hwmon/k8temp.c +++ b/drivers/hwmon/k8temp.c @@ -34,6 +34,7 @@ #define TEMP_FROM_REG(val) (((((val) >> 16) & 0xff) - 49) * 1000) #define REG_TEMP 0xe4 +#define REG_CPUID 0xfc #define SEL_PLACE 0x40 #define SEL_CORE 0x04 @@ -47,6 +48,7 @@ struct k8temp_data { /* registers values */ u8 sensorsp; /* sensor presence bits - SEL_CORE & SEL_PLACE */ u32 temp[2][2]; /* core, place */ + u8 fam; }; static struct k8temp_data *k8temp_update_device(struct device *dev) @@ -155,6 +157,19 @@ static int __devinit k8temp_probe(struct pci_dev *pdev, goto exit; } + /* get real PCI based cpuid, prior revF of fam 0Fh, this reg is 0 */ + pci_read_config_dword(pdev, REG_CPUID, &cpuid); + + data->fam = (cpuid & 0x00000f00) >> 8; + data->fam += (cpuid & 0x0ff00000) >> 20; + + switch (data->fam) { + case 0xf: + dev_warn(&pdev->dev, "Temperature readouts might be wrong" + " - check errata #141\n"); + break; + } + pci_read_config_byte(pdev, REG_TEMP, &scfg); scfg &= ~(SEL_PLACE | SEL_CORE); /* Select sensor 0, core0 */ pci_write_config_byte(pdev, REG_TEMP, scfg); |