Re: [PATCH 06/20] early_res: seperate common memmap func frome820.c to fw_memmap.c

From: Benjamin Herrenschmidt
Date: Mon Mar 22 2010 - 17:04:38 EST


On Mon, 2010-03-22 at 14:05 +0100, Ingo Molnar wrote:
> * Paul Mackerras <paulus@xxxxxxxxx> wrote:
>
> > And I don't see the point of moving the x86 e820 stuff into the kernel
> > directory. [...]
>
> I dont see the point of that either - that is a mistake. e820 is an x86 bios
> call and we shouldnt name a generic mechanism after that. e820 is absolutely
> messy and has no place anywhere beyond x86.
>
> The main technical argument i see is 'early_res versus LMB'. Even there i'd
> prefer LMB from a technical quality POV.

Then we have no argument. The point is, we object to that fw_memmap/e820
stuff taking over for non-x86 architectures. We aren't saying that x86
-must- move to LMB, but if the wish is to have a common implementation
in generic code accross all archs, -then- we object to it being e820.

Ben.


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