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Message-ID: <CALCETrVcs0bW=fZE4hWe0CoHyHvGRSym6dG4Cwqhe=igr+n+SA@mail.gmail.com>
Date: Mon, 23 Feb 2015 07:48:23 -0800
From: Andy Lutomirski <luto@...capital.net>
To: Boaz Harrosh <boaz@...xistor.com>
Cc: Ingo Molnar <mingo@...hat.com>,
Ross Zwisler <ross.zwisler@...ux.intel.com>,
X86 ML <x86@...nel.org>,
linux-kernel <linux-kernel@...r.kernel.org>,
"Roger C. Pao" <rcpao.enmotus@...il.com>,
Dan Williams <dan.j.williams@...el.com>,
Thomas Gleixner <tglx@...utronix.de>,
Linus Torvalds <torvalds@...ux-foundation.org>,
linux-nvdimm <linux-nvdimm@...ts.01.org>,
"H. Peter Anvin" <hpa@...or.com>,
Matthew Wilcox <willy@...ux.intel.com>,
Christoph Hellwig <hch@...radead.org>
Subject: Re: [PATCH 3A/3 good] e820: Add the unknown-12 Memory type (DDR3-NvDIMM)
On Mon, Feb 23, 2015 at 4:46 AM, Boaz Harrosh <boaz@...xistor.com> wrote:
>
> There are multiple vendors of DDR3 NvDIMMs out in the market today.
> At various stages of development/production. It is estimated that
> there are already more the 100ds of thousands chips sold to
> testers and sites.
>
> All the BIOS vendors I know of, tagged these chips at e820 table
> as type-12 memory.
>
I have no problem with this patch.
> Now the ACPI comity, as far as I know, did not yet define a
> standard type for NvDIMM. Also, as far as I know any NvDIMM
> standard will only be defined for DDR4. So DDR3 NvDIMM is
> probably stuck with this none STD type.
s/comity/committee?
>
> I Wish and call the ACPI comity to Define that NvDIMM is type-12.
> Also for DDR4
>
> In this patch I name type-12 "unknown-12". This is because of
> ACPI politics that refuse to reserve type-12 as DDR3-NvDIMM
> and members keep saying:
> "What if ACPI assigns type-12 for something else in future"
>
> [And I say: Then just don't. Please?]
Good luck :)
--Andy
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