There's Now A Patch Adding Ryzen / AMD Zen Temperature Support On Linux

[timofonic]

Poor Guenter Roeck, I think he really could use some hacker's help. There is so much still open, so many chips yet to support (or even obtain data sheets usable for writing drivers). The SIO/EC and general hwmon / lm_sensors /flashrom situation does not seem to have improved in the past on that area.
But great to see this support now, maybe it was not a most horribly pressing issue, but temperature sensors and the likes are there for a reason.

I really think projects like this (and others like zlib) require an organization structure and deserve to have a lot more funding than they currently have.

[nagisa]

So this is the real temperature read from the CPU that was previously under NDA, right?

This is very likely still very not-public, just "figured out" now.

[oskar-n]

However, for those of us naive in kernel grokking, some help with how to use the patch would also be wonderful. For starters, information about which kernels it is compatible with. Second, information about what, if anything, needs to be done to deal with an already embedded build of his previous contribution found at https://github.com/groeck/it87. Third, a "make" file if required for compilation, and fourth, whatever other hand-holding directions the naive need.

Or is this a patch that cannot be inserted into an already compiled kernel?

You need to download the kernel source apply the patch and build the whole kernel.
How compatible it is with different kernel versions depend in the changes in that part of the kernel, the patch is for the latest version.

[haagch]

Applies with no conflicts to agd5f's drm-next-4.15-wip

k10temp-pci-00c3
Adapter: PCI adapter
temp1:        +48.6°C  (high = +70.0°C)

[kaseki]

You need to download the kernel source apply the patch and build the whole kernel.
How compatible it is with different kernel versions depend in the changes in that part of the kernel, the patch is for the latest version.

Thanks. I'll wait with bated breath for the whole enchilada.

[thelongdivider]

Can this be enabled with modprobe options?