diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/hwmon/k10temp.c | 35 |
2 files changed, 34 insertions, 5 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index f00d048aa583..4289a4fa1a03 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -280,8 +280,8 @@ config SENSORS_K10TEMP If you say yes here you get support for the temperature sensor(s) inside your CPU. Supported are later revisions of the AMD Family 10h and all revisions of the AMD Family 11h, - 12h (Llano), 14h (Brazos), 15h (Bulldozer/Trinity/Kaveri) and - 16h (Kabini/Mullins) microarchitectures. + 12h (Llano), 14h (Brazos), 15h (Bulldozer/Trinity/Kaveri/Carrizo) + and 16h (Kabini/Mullins) microarchitectures. This driver can also be built as a module. If so, the module will be called k10temp. diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c index f7b46f68ef43..730bdf702377 100644 --- a/drivers/hwmon/k10temp.c +++ b/drivers/hwmon/k10temp.c @@ -33,6 +33,9 @@ static bool force; module_param(force, bool, 0444); MODULE_PARM_DESC(force, "force loading on processors with erratum 319"); +/* Provide lock for writing to NB_SMU_IND_ADDR */ +static DEFINE_MUTEX(nb_smu_ind_mutex); + /* CPUID function 0x80000001, ebx */ #define CPUID_PKGTYPE_MASK 0xf0000000 #define CPUID_PKGTYPE_F 0x00000000 @@ -51,13 +54,38 @@ MODULE_PARM_DESC(force, "force loading on processors with erratum 319"); #define REG_NORTHBRIDGE_CAPABILITIES 0xe8 #define NB_CAP_HTC 0x00000400 +/* + * For F15h M60h, functionality of REG_REPORTED_TEMPERATURE + * has been moved to D0F0xBC_xD820_0CA4 [Reported Temperature + * Control] + */ +#define F15H_M60H_REPORTED_TEMP_CTRL_OFFSET 0xd8200ca4 +#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F3 0x1573 + +static void amd_nb_smu_index_read(struct pci_dev *pdev, unsigned int devfn, + int offset, u32 *val) +{ + mutex_lock(&nb_smu_ind_mutex); + pci_bus_write_config_dword(pdev->bus, devfn, + 0xb8, offset); + pci_bus_read_config_dword(pdev->bus, devfn, + 0xbc, val); + mutex_unlock(&nb_smu_ind_mutex); +} + static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf) { u32 regval; - - pci_read_config_dword(to_pci_dev(dev), - REG_REPORTED_TEMPERATURE, ®val); + struct pci_dev *pdev = to_pci_dev(dev); + + if (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model == 0x60) { + amd_nb_smu_index_read(pdev, PCI_DEVFN(0, 0), + F15H_M60H_REPORTED_TEMP_CTRL_OFFSET, + ®val); + } else { + pci_read_config_dword(pdev, REG_REPORTED_TEMPERATURE, ®val); + } return sprintf(buf, "%u\n", (regval >> 21) * 125); } @@ -211,6 +239,7 @@ static const struct pci_device_id k10temp_id_table[] = { { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M10H_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M30H_NB_F3) }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M60H_NB_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_NB_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) }, {} |