[PATCH v6] ARM: uncompress: Parse "linux, usable-memory-range" DT property

Linus Walleij linus.walleij at linaro.org
Wed Sep 22 17:08:39 PDT 2021


On Wed, Sep 15, 2021 at 3:20 PM Geert Uytterhoeven
<geert+renesas at glider.be> wrote:

> Add support for parsing the "linux,usable-memory-range" DT property.
> This property is used to describe the usable memory reserved for the
> crash dump kernel, and thus makes the memory reservation explicit.
> If present, Linux no longer needs to mask the program counter, and rely
> on the "mem=" kernel parameter to obtain the start and size of usable
> memory.
>
> For backwards compatibility, the traditional method to derive the start
> of memory is still used if "linux,usable-memory-range" is absent.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>

Very nice patch!
Reviewed-by: Linus Walleij <linus.walleij at linaro.org>

Yours,
Linus Walleij



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