Re: [PATCH v5 15/19] ARM: LPAE: Add support forcpu_v7_do_(suspend|resume)
From: Tony Lindgren
Date: Tue May 24 2011 - 02:26:23 EST
Hi,
Sorry for the delay in replying, we got a baby girl last Thursday :)
* Catalin Marinas <catalin.marinas@xxxxxxx> [110523 00:05]:
> On 20 May 2011 19:09, Nicolas Pitre <nico@xxxxxxxxxxx> wrote:
> > On Fri, 20 May 2011, Catalin Marinas wrote:
> >> On Wed, 2011-05-18 at 08:27 +0100, Tony Lindgren wrote:
> >> > Do we really need all this ifdef else throughout this series?
> >> >
> >> > I think we already have things in place to do this dynamically
> >> > like we already do for thumb, smp_on_up, v6 vs v7 and so on.
> >>
> >> By dynamically, do you mean at run-time? We won't be able to compile
> >> both classic and LPAE in the same kernel, there is just too much
> >> difference between them (2 vs 3 levels of page tables - LPAE is an
> >> entirely new format).
OK
> >> If you mean some simpler macros like what we have for ARM/THUMB to
> >> reduce the number of lines, I'm fine with it though we don't always have
> >> a 1:1 mapping between LPAE and non-LPAE instructions.
> >>
> >> Alternatively, I'm happy to create a separate proc-v7lpae.S file.
> >
> > That would probably be the best option.
>
> OK, I'll move this code to a separate file. The v7 setup code got
> pretty hard to read.
Separate file or macros sounds good to me too depending on how much
of existing code you can recycle.
Regards,
Tony
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