Descriptions of the Custom CSRs

[palmer-dabbelt]

Thanks for posting documentation for this, and sorry I hadn't seen it earlier (Vineet just pointed me to it, but I guess it'd been posted on some of the lists). I was poking around the docs and notices some custom CSR bits (mxstatus.theadisaee, for example), but don't see any definition of what those do.

[rjiejie]

Yes, all extended CSRs of T-HEAD do not exist in the doc, and we will update in the next version,
thanks for your review :)

[orangecms]

Hi, I've looked a bit into those and dropped some notes here while working on oreboot and RustSBI for the Nezha board:
oreboot/oreboot#519

Google Translate worked quite okay for that purpose. :-)

[btashton]

@rjiejie any chance there is a updated version with these around? I am slowly documenting on my own based on the Chinese manual, but it is slow as I am not a native speaker.

[rjiejie]

@rjiejie any chance there is a updated version with these around? I am slowly documenting on my own based on the Chinese manual, but it is slow as I am not a native speaker.

You could get the latest document from https://github.com/T-head-Semi/thead-extension-spec,
all of the open-source T-Head ISAs will been updated there :)