AMD RDNA 3 GPUs Get SubVP Capability in Linux 5.20 AMDGPU Integrated Driver
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AMD RDNA 3 GPUs Get SubVP Capability in Linux 5.20 AMDGPU Integrated Driver.
AMD will reportedly release the last feature update planned for AMDGPU and AMDKFD drivers to DRM-Next for Linux 5.20 in preparation for the release of RDNA 3.
The merger window is set to open later this month, with the likes of AMD and recently reported Intel additions to core support being finalized in preparation for a new generation of graphics hardware from the two tech giants.
AMD is preparing the next-generation RDNA 3 architecture and AMD’s CDNA-based accelerator, also known as AMD Instinct, enabling its new hardware on a “block-by-block basis” when the company begins rolling out its latest computer components later this year. “Completed. The current state of development is not as obvious as previous Linux driver patches.
AMD did not report whether they have completed the update to the Linux 5.20 kernel support, but they are expected to be very close to it, as AMD Radeon RX 7000 GPUs will debut in the next few months.
However, the integration of their RDNA 3 update with Linux 5.20 has yet to be confirmed, assuming AMD is after the product launch.
In this case, open source users will have to rely on third-party solutions until the company can fully finalize the in-process integration.
Today, the final DRM-Next feature pull revealed more AMDGPU Linux driver integration, just before AMD could add previous code and fixes to the Linux 5.20 kernel. The update added to the kernel by AMD contains:
Show Core Next (DCN) v3.2 blocks
Support DCN 3.1.4
Soft reset handling for GFX11 (RDNA 3) graphics and SDMA 6 blocks
“Soft reset handling support for GFX11” is essential to ensure any stalls or issues with the current patch. “SubVP” is a new Display Core (DC) component that allows sub-viewport functionality.
This component is a new DCN 3.2 hardware function, but it is not yet known what the full capabilities of the SubVP function will be.
AMD’s latest pull also adds “DC SubVP support”.
Also included in the Linux AMD pull update is DisplayPort Multi-Stream Transport (DP MST), many audio patches, and a modified GART size on recent APUs, adding Scatter and Gather display support.
Finally, AMD has also integrated the query of the GFXOFF status of the VanGogh series APUs, enhanced the pinning of the buffer object field, and some AMDKFD modifications.
Interested readers can check out the pull request on the official kernel page to read more about the AMDGPU and AMDKFD changes currently in preparation for Linux 5.20 here:
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