On Wed, 20 Apr 2022 at 09:45, Pranav Madhu <pranav.ma...@arm.com> wrote:
>
> Hi Ard,
>
> Please find my response inline.
>
> > -----Original Message-----
> > From: Ard Biesheuvel <a...@kernel.org>
> > Sent: Wednesday, April 20, 2022 1:05 PM
> > To: Pranav Madhu <pranav.ma...@arm.com>
> > Cc: edk2-devel-groups-io <devel@edk2.groups.io>; Ard Biesheuvel
> > <ardb+tianoc...@kernel.org>; Sami Mujawar <sami.muja...@arm.com>
> > Subject: Re: [edk2-platforms][PATCH V1 1/1] Platform/Sgi: Remove SLC entry
> > from PPTT table
> >
> > On Mon, 18 Apr 2022 at 10:14, Pranav Madhu <pranav.ma...@arm.com>
> > wrote:
> > >
> > > Remove system level cache (SLC) entry from ACPI PPTT table. SLC on the
> > > Neoverse reference design platforms is the memory side cache and so it
> > > is removed from PPTT table.
> > >
> >
> > Could you elaborate? Why does the former justify/imply the latter?
>
> The SLC cache in Neoverse reference design is not a processor resource, 
> instead it is an interconnect resource. As PPTT is used to describe the 
> processor topology and processor resources, it is better to remove the SLC 
> cache from PPTT and the best place for SLC is HMAT/SRAT tables.
>

OK, thanks for the clarification.

Pushed as 6b05b8acd60a..df5e094ef347

> >
> > > Signed-off-by: Pranav Madhu <pranav.ma...@arm.com>
> > > ---
> > >  Platform/ARM/SgiPkg/Include/SgiAcpiHeader.h         |  4 +---
> > >  Platform/ARM/SgiPkg/AcpiTables/RdE1Edge/Pptt.aslc   | 24 
> > > +++-----------------
> > >  Platform/ARM/SgiPkg/AcpiTables/RdN1Edge/Pptt.aslc   | 20 +++-------------
> > >  Platform/ARM/SgiPkg/AcpiTables/RdN1EdgeX2/Pptt.aslc | 23 
> > > +++---------------
> > -
> > >  Platform/ARM/SgiPkg/AcpiTables/RdN2/Pptt.aslc       | 21 
> > > ++++-------------
> > >  Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg1/Pptt.aslc   | 21 
> > > ++++-------------
> > >  Platform/ARM/SgiPkg/AcpiTables/RdV1/Pptt.aslc       | 21 
> > > ++++-------------
> > >  Platform/ARM/SgiPkg/AcpiTables/RdV1Mc/Pptt.aslc     | 23 
> > > ++++---------------
> > >  8 files changed, 26 insertions(+), 131 deletions(-)
> > >
> > > Link to github branch for this patch -
> > > https://github.com/Pranav-Madhu/edk2-platforms/tree/topics/remove_slc_
> > > from_pptt
> > >
>
> <...>
>
> Regards,
> Pranav
>
>
> 
>
>


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