Re: Proposal v2: SBI PMU Extension

Greg Favor

On Thu, Jul 9, 2020 at 9:02 PM Anup Patel <Anup.Patel@...> wrote:

Translating event_idx[XLEN-1:0] to platform specific mhpmeventX CSR value will be optional in OpenSBI (M-mode runtime firmware). If a platform does not want to translate event_idx value then we will write event_idx as-in in mhpmeventX CSR.


Regarding total number of bits used by event_idx.type and event_idx.code, I am fine with both 16bits and 20bits approaches. If there is no further objection for using 20bits approach then I will go with that.

Yes, that would also be good.






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