Hygon Dhyana: Chinese x86 Server CPUs Based On AMD Zen
Written by Michael Larabel in AMD on 9 June 2018 at 11:09 AM EDT. 45 Comments
AMD --
While there are the VIA/Centaur-based Zhaoxin desktop CPUs targeted for the Chinese market, it turns out there is another x86 Chinese CPU effort but this time is a collaboration with AMD.

Chengdu Haiguang IC Design Co is a new x86 CPU vendor that is a joint venture between AMD and Haiguang Information Technology Co. This joint venture is aiming to make x86 CPUs for the Chinese server market. This deal was announced back in May and paid out $293 million to AMD for using their intellectual property.

The first Hygon CPU offerings is the "Dhyana" family that is based upon AMD technology and is derived from the AMD Family 17h "Zen" micro-architecture.

We know this as the new company today sent out Linux kernel patches for adding in the new x86 CPU vendor ID and for allowing the Dhyana Family 18h processors to use the AMD Family 17h code paths within the kernel. The Dhyana appears to be a SoC-based solution and not socketed.

With these patches, the Hygon Dhyana CPUs should now work under Linux... The patches are quite straight-forward and amount to less than 200 lines of new kernel code, so indeed at this point seems to be mostly a re-branded Zen CPU for the Chinese server market.

We'll pass along any other details as we work them out.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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