linux-kernel - [PATCH]hwmon: (k10temp) Add support for Zen5 Ryzen Desktop

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <Z-XvZRmVXMNHgi3e@archibald.hows.id.au>
Date: Fri, 28 Mar 2025 11:37:57 +1100
From: David Hows <david@...s.id.au>
To: Clemens Ladisch <clemens@...isch.de>, Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>, linux-hwmon@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH]hwmon: (k10temp) Add support for Zen5 Ryzen Desktop

Add support for retrieving CCD temperatures on Granite Ridge Ryzen Desktop CPUs

Tested locally against my 9950X3D CPU.
---
 drivers/hwmon/k10temp.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index d0b4cc9a5011..cc2ad7a324f9 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -502,6 +502,13 @@ static int k10temp_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 			k10temp_get_ccd_support(data, 12);
 			break;
 		}
+	} else if (boot_cpu_data.x86 == 0x1a) {
+		switch (boot_cpu_data.x86_model) {
+		case 0x40 ... 0x4f:	/* Zen5 Ryzen Desktop*/
+			data->ccd_offset = 0x308;
+			k10temp_get_ccd_support(data, 8);
+			break;
+		}
 	}
 
 	for (i = 0; i < ARRAY_SIZE(tctl_offset_table); i++) {
-- 
2.49.0