Mesa 19.2 Punts AMD Register Descriptions Into JSON
Written by Michael Larabel in Radeon on 4 June 2019 at 07:42 AM EDT. 9 Comments
RADEON --
If you want an easy way to go through the AMD Radeon GPU register descriptions, they are now storing them in a JSON format within Mesa following more than ten thousand lines of code/headers being shifted around today.

Rather than keeping the AMD register descriptions as raw headers and trying to parse that for other purposes like debugging tables, the open-source AMD developers are now storing the original register descriptions in a convenient JSON format and generating the headers at build time.

With their generators, the debugging tables are also being cleanly generated off this data. This format should also prove useful if you want to systematically parse the Radeon GPU register details for other purposes as well.

There's now nearly 16k lines of register JSON data in the Mesa 19.2-devel driver stack. With the Navi open-source driver code soon dropping, expect that JSON table to grow.
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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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