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Date:   Sat, 31 Oct 2020 09:18:46 +0000
From:   Christoph Hellwig <hch@...radead.org>
To:     Mike Rapoport <rppt@...nel.org>
Cc:     Sudarshan Rajagopalan <sudaraja@...eaurora.org>,
        Mark Rutland <mark.rutland@....com>,
        David Hildenbrand <david@...hat.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        linux-kernel@...r.kernel.org, Steven Price <steven.price@....com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Greg Kroah-Hartman <gregkh@...gle.com>,
        Will Deacon <will@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        Pratik Patel <pratikp@...eaurora.org>
Subject: Re: mm/memblock: export memblock_{start/end}_of_DRAM

On Fri, Oct 30, 2020 at 10:38:42AM +0200, Mike Rapoport wrote:
>  
> What do you mean by "system memory block"? There could be a lot of
> interpretations if you take into account memory hotplug, "mem=" option,
> reserved and firmware memory.
> 
> I'd suggest you to describe the entire use case in more detail. Having
> the complete picture would help finding a proper solution.

I think we need the code for the driver trying to do this as an RFC
submission.  Everything else is rather pointless.

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