Re: [PATCH 00/21] mm: introduce Designated Movable Blocks

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On Wed, Sep 14, 2022 at 11:57 AM Doug Berger <opendmb@xxxxxxxxx> wrote:
>
> On 9/14/2022 6:21 AM, Rob Herring wrote:
> > On Tue, Sep 13, 2022 at 2:57 PM Doug Berger <opendmb@xxxxxxxxx> wrote:
> >>
> >> MOTIVATION:
> >> Some Broadcom devices (e.g. 7445, 7278) contain multiple memory
> >> controllers with each mapped in a different address range within
> >> a Uniform Memory Architecture. Some users of these systems have
> >> expressed the desire to locate ZONE_MOVABLE memory on each
> >> memory controller to allow user space intensive processing to
> >> make better use of the additional memory bandwidth.
> >> Unfortunately, the historical monotonic layout of zones would
> >> mean that if the lowest addressed memory controller contains
> >> ZONE_MOVABLE memory then all of the memory available from
> >> memory controllers at higher addresses must also be in the
> >> ZONE_MOVABLE zone. This would force all kernel memory accesses
> >> onto the lowest addressed memory controller and significantly
> >> reduce the amount of memory available for non-movable
> >> allocations.
> >
> > Why are you sending kernel patches to the Devicetree specification list?
> >
> > Rob
> My apologies if this is a problem. No offense was intended.

None taken. Just trying to keep a low traffic list low traffic.

> My process has been to run my patches through get_maintainers.pl to get
> the list of addresses to copy on submissions and my
> 0016-dt-bindings-reserved-memory-introduce-designated-mov.patch
> solicited the
> '- <devicetree-spec@xxxxxxxxxxxxxxx>' address.

Yeah, I see that now. That needs to be a person for a specific
binding. The only bindings using the list should be targeting the
dtschema repo. (And even those are a person ideally.)

Rob




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