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SubjectRe: [PATCH 1/4] x86, gart: Don't enforce GART aperture lower-bound by alignment
On 04/18/2011 10:36 AM, Joerg Roedel wrote:
>>
>> The right thing to do for in-place kexec it to turn it off, not rely on
>> any specific magic addresses. We have had this problem with a number of
>> drivers in the context of kexec.
>
> Ok, so changing the start-address to zero seems the best thing to do.
> This way the GART will working again on machines with less than 512MB of
> RAM (and a BIOS that does not initialize the GART as we want it).
>

I'm going to apply your patch as-is, based on the notion that this is a
change of mechanism, and a change of policy is a separate thing.
However, we should address the shutdown of the GART first, and then we
can move the start address to zero (again, two separate patches.)

-hpa


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