[Intel-gfx] [RFC] Hack to avoid C-state reduction during graphics activity.

[Eric Anholt]

On Mon, 1 Nov 2010 17:00:46 -0400, Andrew Lutomirski <luto at mit.edu> wrote:
> Out of curiousity, what happened to ACPI_BM_BREAK_EN here:
> 
> https://bugs.freedesktop.org/show_bug.cgi?id=30364
> 
> On my box, that register is (according to setpci) 0x00, but I'm
> testing on an ICH9M and I don't seem to be affected anyway.

Those registers aren't there on Ironlake.
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