On 06/17/2008 11:37 PM, Tejun Heo wrote:
ahci 1.2 has an exciting! new feature called BIOS/OS handoff which basically is there to allow BIOS to keep tinkering with the controller even after OS starts executing. I have no idea what this is useful for but it's there and we need to do it. This patch implements the handoff as FIXUP_HEADER as the controller needs to be claimed before the OS changes any configuration including IRQ routing. I'm yet to see any controller which actually requires this, so it's not for inclusion yet. Maybe keep this in a separate branch? RFC, DON'T COMMIT --- drivers/pci/quirks.c | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+)
Looking through old emails... did AMD ever confirm the usefulness of this patch? Is it actually needed in the field? I'm guessing the silence implies "No"... :)
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