[Intel-gfx] Ugly patches for stolen reservation

[Daniel Vetter]

On Fri, Jul 26, 2013 at 10:28 PM, H. Peter Anvin <hpa at zytor.com> wrote:
> On 07/26/2013 01:24 PM, Ingo Molnar wrote:
>>
>> Am I being too pedantic in expecting that we still mark it
>> e820-reserved?
>>
>> This area really isnt an ordinary PCI resource such as a
>> BAR or an MMIO region. It's truly system RAM (which cannot
>> be moved/reallocated), used by graphics hardware, and the
>> firmware should have marked it reserved.
>>
>> (The end result should be the same in any case, so this is
>> a detail.)
>>
>
> I, too, would prefer to see it marked as reserved.

Yeah, current patches mark it as reserved. But since we don't want to
duplicate the detection code we want to switch to a more unique name
when mapping the e820 region into a iomem reservation so that when
i915.ko loads we can dig it out again.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch