AMD is preparing next-generation RDNA 4 GPU patches for Linux

According to news from this site on February 8, Phoronix discovered that AMD engineers submitted some new Linux patches on Monday to enable some new IP blocks in its open source AMDGPU Linux kernel graphics driver, which is used to support Part of the IP of the first generation RDNA4 hardware, including ATHUB 4.1, LSDMA 7.0, IH 7.0 and HDP 7.0 patches.

Prior to this, AMD engineers have enabled the GFX1200 partial ID for RDNA4's GFX12 hardware in LLVM. There are also some other ongoing related work recently, which means AMD is paying more and more attention to Linux.

Judging from the content mentioned in this patch, ATHUB 4.1 is mainly used for clock gating/power management functions; LSDMA 7.0 is the latest version of lightweight SDMA, used for general system DMA on the GPU ( SDMA); IH 7.0 will be used for the interrupt handler on the GPU; HDP 7.0 is used to support the host data path so that the CPU can access the GPU device memory through PCI BAR, most of which are automatically generated header files.

According to AMD’s plan, the next-generation Radeon GPU series based on the RDNA 4 architecture is expected to be launched sometime in 2024 and will use a new advanced process node. This site There will be more relevant reports in the future, so stay tuned.

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