Re: [PATCHv3 03/13] acpi/hmat: Parse and report heterogeneous memory

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On Tue, Jan 15, 2019 at 6:09 PM Keith Busch <keith.busch@xxxxxxxxx> wrote:
>
> On Thu, Jan 10, 2019 at 07:42:46AM -0800, Rafael J. Wysocki wrote:
> > On Wed, Jan 9, 2019 at 6:47 PM Keith Busch <keith.busch@xxxxxxxxx> wrote:
> > >
> > > Systems may provide different memory types and export this information
> > > in the ACPI Heterogeneous Memory Attribute Table (HMAT). Parse these
> > > tables provided by the platform and report the memory access and caching
> > > attributes.
> > >
> > > Signed-off-by: Keith Busch <keith.busch@xxxxxxxxx>
> >
> > While this is generally fine by me, it's another piece of code going
> > under drivers/acpi/ just because it happens to use ACPI to extract
> > some information from the platform firmware.
> >
> > Isn't there any better place for it?
>
> I've tried to abstract the user visible parts outside any particular
> firmware implementation, but HMAT parsing is an ACPI specific feature,
> so I thought ACPI was a good home for this part. I'm open to suggestions
> if there's a better place. Either under in another existing subsystem,
> or create a new one under drivers/hmat/?

Well, there is drivers/acpi/nfit for the NVDIMM-related things, so
maybe there could be drivers/acpi/mm/ containing nfit/ and hmat.c (and
maybe some other mm-related things)?




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