AMD has submitted eight Linux kernel patches adding GFX13 support to the open-source AMDGPU driver, signaling progress toward RDNA 5. The patches, led by maintainer Alex Deucher, introduce version 13 of the graphics core, Micro Engine Scheduler (MES), and IMU. On the compute side, AMDKFD gains initial GC 13 support, a CWSR trap handler, and clock gating features like MGCG and CGCG to reduce power when GPU sections are idle.
The series references two specific targets, GFX 13.0.1 and GFX 13.0.4, indicating at least two IP configurations in development. While AMD hasn’t officially confirmed GFX13 as RDNA 5, the pattern follows GFX12’s link to RDNA 4. The integration also includes DCN6 display engine updates with new scaling, pixel formats, and pre-scaler support for 4:2:0 and 4:2:2 content.
These changes reflect the complexity of RDNA 5, which is expected to be a major leap over RDNA 4.
Source: TechPowerUp News · Summarized by HeadlinesBriefing