Re: [PATCH v5 02/14] efi: use early_memremap and early_memunmap

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On Wed, 2013-12-11 at 11:32 +0000, Matt Fleming wrote:
> On Wed, 11 Dec, at 12:02:27PM, Leif Lindholm wrote:
> > On Wed, Dec 11, 2013 at 10:39:03AM +0000, Matt Fleming wrote:
> > > Leif, Mark, does this patch look OK for ARM? We'd need to introduce a
> > > new early_memunmap() function so that things still build, but that
> > > should be straight forward. You'd even be able to get rid of the
> > > asymmetry in uefi_init() where you map efi.systab with early_memremap()
> > > but unmap it with early_iounmap().
> > 
> > This patch looks splendid for ARM. As long as Mark can get the new
> > function into an update to the early_*remap() set, I can include this
> > in my next version - which is coming this week.
> 
> Great!
> 
> Oh and ia64 would also need early_memunmap(). Tony, the original patch
> is here,
> 

Couldn't ia64 just do:

  #define early_memremap(phys_addr, size) __va(phys_addr)
  #define early_memunmap(addr, size)

Anyway, I posted a patch to create a generic early_ioremap
implementation using generic bits of the x86 code:

  https://lkml.org/lkml/2013/11/27/621

So maybe Dave's patch 1/14 should be part of that series or
get rebased on top of it.

--Mark


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