On Wed, 20 Feb 2019, Björn Töpel wrote:

> Christopher mentioned "per-cpu atomicity" in his Plumbers RISC-V HPC
> talk [1]. Typically, this would be for the per-cpu implementation in
> Linux, so I had a look at the current implementation.
> 
> I noticed that RISC-V currently uses the generic one. Has there been
> any work on moving to a RISC-V specific impl, based on the
> A-extensions, similar to what aarch64 does? Would that make sense?

Yes doing a RISC-V implementation with the AMO instructions would make 
sense.  Care to take that on?


- Paul