New AMDGPU Driver Gets More Fixes Ahead Of Its Linux 4.2 Introduction

Written by Michael Larabel in Radeon on 11 June 2015 at 09:42 AM EDT. 2 Comments
With the Linux 4.2 kernel that's soon to enter development, it's adding the new "AMDGPU" DRM driver as needed to support AMD's R9 285 Tonga along with Carrizo APUs and Radeon Rx 300 series graphics cards.

While the AMDGPU DRM driver was already pulled into DRM-Next for integration into the mainline Linux kernel once the 4.2 merge window opens, Alex Deucher of AMD yesterday sent in some more fixes for this driver. Alex sent in more fixes for AMDGPU including some changes to the interfaces based on feedback, fixing UVD/VCE VM emulation, cleaning up some code, addressing a race condition, fixing resume after suspend, and other fixes. In total there's a few hundred lines of code adjusted by this latest pull request.

The AMD Radeon R9 285 has been sold since last year while finally with Linux 4.2 it will have an open-source kernel driver as an alternative to the proprietary Catalyst Linux driver.

There's also the possibility that more AMDGPU fixes could land next week ahead of Linux 4.1 being released and the 4.2 merge window then opening. For users of the current open-source AMD Radeon Linux driver stack, Alex also sent in a few fixes for the existing Radeon DRM code.
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