AMD Sienna Cichlid GPU appears in Linux driver patches, is this Big Navi?

Published: Jun 1st 2020, 19:49 GMT   Comments

Please note that this post is tagged as a rumor.

A new AMD GPU has been added to Linux patches.

AMD Sienna Cichlid aka Navi 21

Is this Big Navi, Small Navi or is it Navi at all? Well, it is part of the Navi family, so it is either the highly anticipated enthusiast GPU or … something else. In an updated driver file you will find the following new line of code:

The Navi 21 has already been seen with a codename of GFX1030. For comparison, Navi 10 is GFX1010 and Navi 14 is 1012. This code update could further suggest that we are looking at Navi 21 or Navi 22 (which allegedly has a codename of GFX1031). That said, it is very likely that we are looking at a new codename for Navi 2X-based GPU.

Another ‘proof’ that this could indeed be the Navi 21 comes from @KOMACHI_ENSAKA, who believes that the “40” variant is the same as in the previous leaks. This codename appears to be an alternative (or a new) name for Navi 21.

According to Phoronix, the new patches confirm this is Navi-based GPU with VCN 3.0 capabilities for video encoding and DCN3 update on the display front.

More importantly, however, this update will not make it to the Linux 5.9 kernel merge window in August, meaning the Sienna Cichlid is likely to launch after the month of August.

AMD’s Alex Deucher:

Sienna Cichlid is a GPU from AMD. This patch set adds support for it including power management, display, kfd, interrupts, gfx, multi-media, etc. The new register headers are really big so I haven’t sent them to the list. You can view the new patches including the register headers on the following git branch […]


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