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authorHuang Rui <ray.huang@amd.com>2015-08-27 16:07:35 +0800
committerGuenter Roeck <linux@roeck-us.net>2015-08-27 07:47:33 -0700
commite9cd4d55d16f880ddf436fbae8c0c82ce0a928d5 (patch)
tree7fc871feea24320f4c5b527ca2315689c315e430 /drivers/hwmon
parentd83e92b3af602c6ebb6d25d5232ecba73201a0e5 (diff)
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hwmon: (fam15h_power) Update running_avg_capture bit field to 28
On Carrizo and later platforms, running_avg_capture bit field is extended to 4:31 (28 bits) from 4:25. Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/fam15h_power.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c
index 820adf19f4e2..41174903009c 100644
--- a/drivers/hwmon/fam15h_power.c
+++ b/drivers/hwmon/fam15h_power.c
@@ -59,8 +59,19 @@ static ssize_t show_power(struct device *dev,
pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5),
REG_TDP_RUNNING_AVERAGE, &val);
- running_avg_capture = (val >> 4) & 0x3fffff;
- running_avg_capture = sign_extend32(running_avg_capture, 21);
+
+ /*
+ * On Carrizo and later platforms, TdpRunAvgAccCap bit field
+ * is extended to 4:31 from 4:25.
+ */
+ if (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model >= 0x60) {
+ running_avg_capture = val >> 4;
+ running_avg_capture = sign_extend32(running_avg_capture, 27);
+ } else {
+ running_avg_capture = (val >> 4) & 0x3fffff;
+ running_avg_capture = sign_extend32(running_avg_capture, 21);
+ }
+
running_avg_range = (val & 0xf) + 1;
pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5),
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