On Wed, Aug 21, 2019 at 09:22:48AM +0530, Anup Patel wrote: > I agree that IPI mechanism should be standardized for RISC-V but I > don't support the idea of mandating CLINT as part of the UNIX > platform spec. For example, the AndesTech SOC does not use CLINT > instead they have PLMT for per-HART timer and PLICSW for per-HART > IPIs.
The point is not really mandating a CLINT as know right now. The point is to mandate one way to issue IPIs from S-mode to S-mode, one way to read the time counter and one way to write the timer threshold.