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Message-ID: <ef1a9a97e0238a0ff2d8e044487602a5@mailhost.ics.forth.gr>
Date: Wed, 16 Jun 2021 13:43:32 +0300
From: Nick Kossifidis <mick@....forth.gr>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Nick Kossifidis <mick@....forth.gr>,
Rob Herring <robh+dt@...nel.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Frank Rowand <frowand.list@...il.com>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@...r.kernel.org>,
linux-riscv <linux-riscv@...ts.infradead.org>,
linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] riscv: Remove non-standard linux,elfcorehdr handling
Στις 2021-06-16 10:56, Geert Uytterhoeven έγραψε:
>
> I can't comment on the duplication on arm64, but to me, /chosen
> sounds like the natural place for both "linux,elfcorehdr" and
> "linux,usable-memory-range". First rule of DT is "DT describes
> hardware, not software policy", with /chosen describing some software
> configuration.
>
We already have "linux,usable-memory" on /memory node:
https://elixir.bootlin.com/linux/v5.13-rc6/source/drivers/of/fdt.c#L1011
and it makes perfect sense to be there since it overrides /memory's reg
property.
Why define another binding for the same thing on /chosen ?
>
> OK, thanks!
> But do you need the entry on the reservation map?
>
I'll add the entry from kexec-tools, so that the kernel will reserve the
region as part of:
https://elixir.bootlin.com/linux/v5.13-rc6/source/drivers/of/fdt.c#L605
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