AMD has uploaded additional AMDGPU and AMDKFD kernel driver updates to fix some previous issues with the DRM-next (the upcoming AMD Direct Rendering Manager) features and add more updates to the driver for GPUs such as RDNA 3 and more. These updates are to see the Linux 6.4 merge window, which should open next week.
AMD adds AMDGPU & AMDKFD kernel driver updates to assist with power management in RDNA 3 GPUs & Others
In the updated code sent in on Friday, the company has issued new power management features for Valve's Steam Deck handheld, initial implements for the GFX943 Instinct accelerator so that the code can begin to target the new SKU and minor updates to other code, S4 fixes for AMD's APUs, and more additional improvements to GFX11 and RDNA 3 GPUs, reports the Linux Hardware website Phoronix. Other minor work added to the Linux 6.4 kernel is DisplayPort, RAS patchwork, and additional minor fixes. The code will be added to the Linux 6.4 kernel once the merge window opens.
Alex Deucher of AMD notes in the recent pull request the last bit of code before Linux 6.4 becomes fully active.
Last few changes for 6.4.
The following changes since commit 55bf14961db9da61220e6f04bc9919c94b1a6585:
Merge tag 'mediatek-drm-next-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-next (2023-04-11 12:28:10 +0200) are available in the Git repository at:
https://gitlab.freedesktop.org/agd5f/linux.git tags/amd-drm-next-6.4-2023-04-14 for you to fetch changes up to 541372bb62f289f4402cf55be51fb9cec7373627:
drm/amdgpu: add some basic elements for multiple XCD case (2023-04-14 13:47:49 -0400)
— Alex Deucher of AMD
The new changelog is listed below:
- amd-drm-next-6.4-2023-04-14:
- amdgpu:
- S4 fixes for APUs
- GFX11 fixes
- Misc code cleanups
- DCN 3.2 fixes
- DCN 3.1.4 fixes
- FPO/FAMS work to improve display power savings
- DP fixes
- UMC 8.10 code cleanup
- SDMA v4 fix
- GPU clock counter fixes
- SMU 13 fixes
- Sdma v6 invalidation fix for preemption
- RAS fixes
- S0ix fix
- GC 9.4.3 updates
- amdkfd:
- Fix user pointers with IOMMU
- Fix coherency flag handling
- amdgpu:
FPO and FAMS operations and FPO and Vactive functionality were completed to improve display power settings, especially for DCN 3.2 and DCN 3.2.1 hardware. AMD's RDNA 3 architecture utilizes the DCN 3.2 display engine.
Michael Larabel of the website Phoronix notes limited information on FAMS and FPO functionality but finds that it is expected to assist with power consumption in the newest GPUs that are part of AMD's RDNA 3 family.
The newest Linux 6.4 is expected to launch later this year and will have several integrations prepared by AMD and its competitors for better optimization and operation within the open-source communities. AMD's work is on a case-by-case basis, whereas the other two companies tend to do larger batches of code to integrate their products.
Refference- https://wccftech.com
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