AMD Prepares Official Ryzen Overclocking Driver for Linux
AMD has published kernel patches introducing AOD, a driver that brings Ryzen platform tuning controls to Linux through the standard sysfs interface.
AfroEuropa Newsroom
AfroEuropa desk
AMD is developing official overclocking support for Ryzen processors on Linux. According to Phoronix, AMD engineer Shyam Sundar S K submitted a three-patch series for a new driver named AOD, short for AMD Overclocking Driver, to the platform-driver-x86 mailing list, as reported by Tom's Hardware and TechPowerUp.
The driver is a WMI driver that communicates with the same firmware interface used by Ryzen Master on Windows, with its controls made available through the sysfs interface. In its initial form, the driver covers PPT, TDC, and EDC power limits together with their supported ranges, a platform-level Simultaneous Multithreading (SMT) toggle, and a read-only memory clock readout. The SMT toggle works through the CPU hotplugging mechanism and functions as an alternative to passing the older 'nosmt' boot parameter to the kernel.
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