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Subject[PATCH 1/1] hwmon: (k10temp) Add support for Zen3 CPUs
Date
Zen3 thermal info is supported via a new PCI device ID. Also the voltage
telemetry registers and the current factors need to be defined. k10temp
driver then searches for CPU family 0x19 and configures k10temp_data
accordingly.

Signed-off-by: Wei Huang <wei.huang2@amd.com>
---
drivers/hwmon/k10temp.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index 49e8ebf8da32..a250481b5a97 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -95,6 +95,13 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
#define F17H_M31H_CFACTOR_ICORE 1000000 /* 1A / LSB */
#define F17H_M31H_CFACTOR_ISOC 310000 /* 0.31A / LSB */

+/* F19h thermal registers through SMN */
+#define F19H_M01_SVI_TEL_PLANE0 (ZEN_SVI_BASE + 0x14)
+#define F19H_M01_SVI_TEL_PLANE1 (ZEN_SVI_BASE + 0x10)
+
+#define F19H_M01H_CFACTOR_ICORE 1000000 /* 1A / LSB */
+#define F19H_M01H_CFACTOR_ISOC 310000 /* 0.31A / LSB */
+
struct k10temp_data {
struct pci_dev *pdev;
void (*read_htcreg)(struct pci_dev *pdev, u32 *regval);
@@ -527,6 +534,22 @@ static int k10temp_probe(struct pci_dev *pdev, const struct pci_device_id *id)
k10temp_get_ccd_support(pdev, data, 8);
break;
}
+ } else if (boot_cpu_data.x86 == 0x19) {
+ data->temp_adjust_mask = ZEN_CUR_TEMP_RANGE_SEL_MASK;
+ data->read_tempreg = read_tempreg_nb_zen;
+ data->show_temp |= BIT(TDIE_BIT);
+ data->is_zen = true;
+
+ switch (boot_cpu_data.x86_model) {
+ case 0x0 ... 0x1: /* Zen3 */
+ data->show_current = true;
+ data->svi_addr[0] = F19H_M01_SVI_TEL_PLANE0;
+ data->svi_addr[1] = F19H_M01_SVI_TEL_PLANE1;
+ data->cfactor[0] = F19H_M01H_CFACTOR_ICORE;
+ data->cfactor[1] = F19H_M01H_CFACTOR_ISOC;
+ k10temp_get_ccd_support(pdev, data, 8);
+ break;
+ }
} else {
data->read_htcreg = read_htcreg_pci;
data->read_tempreg = read_tempreg_pci;
@@ -564,6 +587,7 @@ static const struct pci_device_id k10temp_id_table[] = {
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M30H_DF_F3) },
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M60H_DF_F3) },
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F3) },
+ { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_19H_DF_F3) },
{ PCI_VDEVICE(HYGON, PCI_DEVICE_ID_AMD_17H_DF_F3) },
{}
};
--
2.24.1
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