AMD Stages Latest Radeon/AMDGPU Changes For Linux 4.21 Kernel
![RADEON](/assets/categories/radeon.webp)
This is the first of likely two or three feature pull requests to DRM-Next for staging until the Linux 4.21 kernel cycle kicks off in the final days of 2018 or early 2019. Initial work includes:
- Support for the SDMA paging queue on Vega GPUs.
- Putting compute EOP buffers into vRAM as a performance optimization.
- Sharing more code between AMDGPU and the AMDKFD "Kernel Fusion Driver" compute code as part of the recent effort to unify these drivers.
- Support for scanout with DCC on Vega/GFX9 hardware.
- Initial kernel documentation on the "DC" display code.
- Updated SMU firmware support for GFX8 hardware.
- Reworking CSA handling in preparation for preemption support.
- PSP (Platform Security Processor) support for the xGMI interconnect for that PCIe alternative with Vega 20 hardware.
- Cleaned up RLC handling.
- Enabling GPU reset by default for Volcanis Islands and other hardware.
- Scheduler improvements for finding out if schedulers are ready for work and timeout/fault handling as part of the GPU recovery process.
The complete list of patches can be found via this pull request.
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