diff options
| author | Andreas Herrmann <andreas.herrmann3@amd.com> | 2009-01-15 22:27:47 +0100 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2009-01-15 22:27:47 +0100 |
| commit | a2e066bba2aad6583e3ff648bf28339d6c9f0898 (patch) | |
| tree | 64b84783acc67aa3c20d0587b79efe6e618bbd73 /drivers/hwmon | |
| parent | hwmon: (k8temp) Warn about fam F rev F errata (diff) | |
| download | linux-a2e066bba2aad6583e3ff648bf28339d6c9f0898.tar.xz linux-a2e066bba2aad6583e3ff648bf28339d6c9f0898.zip | |
hwmon: (k8temp) Fix wrong sensor selection for AMD K8 RevF/RevG CPUs
Meaning of ThermSenseCoreSel bit was inverted beginning with K8 RevF.
That means with current driver temp1/temp2 belong to core 1 and
temp3/temp4 belong to core 0 on a K8 RevF/RevG CPU.
This patch ensures that temp1/temp2 always belong to core 0 and
temp3/temp4 to core 1 for all K8 revisions.
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/k8temp.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c index ca56f2e26fd1..a6381bc9189c 100644 --- a/drivers/hwmon/k8temp.c +++ b/drivers/hwmon/k8temp.c @@ -48,6 +48,7 @@ struct k8temp_data { /* registers values */ u8 sensorsp; /* sensor presence bits - SEL_CORE & SEL_PLACE */ u32 temp[2][2]; /* core, place */ + u8 swap_core_select; /* meaning of SEL_CORE is inverted */ }; static struct k8temp_data *k8temp_update_device(struct device *dev) @@ -117,6 +118,9 @@ static ssize_t show_temp(struct device *dev, int place = attr->index; struct k8temp_data *data = k8temp_update_device(dev); + if (data->swap_core_select) + core = core ? 0 : 1; + return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[core][place])); } @@ -162,7 +166,12 @@ static int __devinit k8temp_probe(struct pci_dev *pdev, goto exit_free; } + /* + * AMD NPT family 0fh, i.e. RevF and RevG: + * meaning of SEL_CORE bit is inverted + */ if (model >= 0x40) { + data->swap_core_select = 1; dev_warn(&pdev->dev, "Temperature readouts might be " "wrong - check erratum #141\n"); } |