Re: [PATCH v2] PCI: Always set prefetchable base/limit upper32registers

From: Jesse Barnes
Date: Fri Dec 04 2009 - 19:02:54 EST


On Mon, 30 Nov 2009 14:51:44 -0700
Alex Williamson <alex.williamson@xxxxxx> wrote:

> Prior to 1f82de10 we always initialized the upper 32bits of the
> prefetchable memory window, regardless of the address range used.
> Now we only touch it for a >32bit address, which means the upper32
> registers remain whatever the BIOS initialized them too.
>
> It's valid for the BIOS to set the upper32 base/limit to
> 0xffffffff/0x00000000, which makes us program prefetchable ranges
> like 0xffffffffabc00000 - 0x00000000abc00000
>
> Revert the chunk of 1f82de10 that made this conditional so we always
> write the upper32 registers and remove now unused pref_mem64 variable.
>
> Signed-off-by: Alex Williamson <alex.williamson@xxxxxx>
> ---
>

Applied this one, though it looks like your diff had some context that
wasn't in my tree. Please double check that I fixed it up correctly.

Thanks,
--
Jesse Barnes, Intel Open Source Technology Center
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