Re: [Intel-gfx] [PATCH] ACPI/Intel: Rework Opregion support

From: Olivier Galibert
Date: Tue Mar 15 2011 - 09:31:03 EST


On Tue, Mar 15, 2011 at 01:52:26AM +0000, Matthew Garrett wrote:
> Now that we've got multiple consumers it's probably not helpful to move
> the (potentially chip-specific) VBT handling to general code. We've got
> zero documentation on how GMA500 handles VBT, and not a great deal more
> for i915.

I'm not sure what you mean by "handles". If you mean find it, the
gma500 driver code reads a 32-bit pointer to the opregion at offset
0xfc in the pci configuration space. If you mean parse it, I haven't
seen anything that looked different to what the current kernel code
parses.

OG.

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