Comment by kimixa

Don't forget how much of a "high-performance" implementation is due to the physical implementation, a lot of engineering effort is put into that post-HDL. And much below HDL is hard to share, as it relies too much on (closed) fab IP libraries and PDK specifics. And then the verification of that result.

Which might discourage an Open Source hardware project with shared ownership as large as a high performance implementation would require - as each cooperating company would end up using rather different products anyway.

I fear it'll become just an "Dump Over The Wall An Old Snapshot" of a few different companies work at best, rather than true cooperation.