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Message-ID: <CAL_JsqJ6+uYf=Pb82j3CWC3iD=-hbnf3nj_TsHoQAUcLK3mKbg@mail.gmail.com>
Date:   Wed, 14 Sep 2022 13:07:36 -0500
From:   Rob Herring <robh+dt@...nel.org>
To:     Doug Berger <opendmb@...il.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Jonathan Corbet <corbet@....net>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Frank Rowand <frowand.list@...il.com>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Muchun Song <songmuchun@...edance.com>,
        Mike Rapoport <rppt@...nel.org>,
        Christoph Hellwig <hch@....de>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        Borislav Petkov <bp@...e.de>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Neeraj Upadhyay <quic_neeraju@...cinc.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        David Hildenbrand <david@...hat.com>, Zi Yan <ziy@...dia.com>,
        Oscar Salvador <osalvador@...e.de>,
        Hari Bathini <hbathini@...ux.ibm.com>,
        Kees Cook <keescook@...omium.org>,
        - <devicetree-spec@...r.kernel.org>,
        KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
        Mel Gorman <mgorman@...e.de>,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org, linux-mm <linux-mm@...ck.org>,
        iommu@...ts.linux.dev
Subject: Re: [PATCH 00/21] mm: introduce Designated Movable Blocks

On Wed, Sep 14, 2022 at 11:57 AM Doug Berger <opendmb@...il.com> wrote:
>
> On 9/14/2022 6:21 AM, Rob Herring wrote:
> > On Tue, Sep 13, 2022 at 2:57 PM Doug Berger <opendmb@...il.com> 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@...r.kernel.org>' 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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