AMD’s Next-Gen CDNA Accelerators With Multiple Chiplets Get Initial Support In Linux 6.4
AMD has added initial support for its next-gen CDNA accelerators with multiple chiplets that come after Instinct MI300 to Linux 6.4
AMD has started introducing a new CDNA GPU code into the Linux kernel, labeled "GC 9.4.3," which is anticipated to add the next-gen "multi-XCC accelerator" into the kernel code. AMD engineers are adding this for an Instinct CDNA accelerator under the "GFX943" family which comes after the AMD MI300 "GFX940" series, reports Linux hardware specialist and editor of Phoronix, Michael Larabel.
Although not much is known about the CDNA architecture and the respective Instinct accelerators that will come after the MI300 but there are reports of a new GPU, codenamed "Aqua Vanjaram" as mentioned by @Olrak29_ which might be a codename for the Instinct MI300 or its successor.
Aqua Vanjaram
— Olrak (@Olrak29_) March 31, 2023
Furthermore, the new AMD Instinct accelerators such as the MI300 will house various chiplets that will be referred to as XCD (X Compute Die) and XCC (X Compute Clusters). There's also an AID unit & the reason the red team is going with X instead of G/M/C naming conventions is that the chips now house multiple CPU/GPU/Memory IPs on the same block. The Instinct MI300 houses both Zen 4 and CDNA 3 cores.
AID also
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