Re: [RFC PATCH v3 02/16] cxl/acpi: Add an acpi_cxl module for the CXL interconnect

From: Dan Williams
Date: Wed Jan 20 2021 - 14:28:35 EST


On Wed, Jan 13, 2021 at 9:55 AM Kaneda, Erik <erik.kaneda@xxxxxxxxx> wrote:
[..]
> > The supplemental tables described here:
> >
> > https://www.uefi.org/acpi
> >
> > ...do eventually make there way into ACPICA. Added Bob and Erik in
> > case they can comment on when CEDT and CDAT support will be picked up.
>
> We would be happy to add support. I think Ben has reached out to me earlier about something like this but I haven’t had a chance to implement... Sorry about the delay.. How soon is the iASL/ACPICA support needed for CDAT and CDET?

CDAT and CEDT definitions in include/acpi/actbl* would be useful as
soon as v5.12. If that's too soon I don't think we're blocked, but the
driver is fast approaching the point where it needs to consult these
tables to enable higher order functionality.