Re: [ACPI] [PATCH] disable SMM access to SpeedStep using ACPI-FADT pstate_cnt

[Len B. <len...@in...>]

On Sun, 2004-02-15 at 09:54, Bruno Ducrot wrote:
> On Sun, Feb 15, 2004 at 11:57:12AM +0100, Dominik Brodowski wrote:
> > Disable SMM access to SpeedStep

> I would prefer to name it 'take_ownership' or something like that.  I think
> this is the correct naming.

We write PSTATE_CNT to SMI_CMD register to "assume processor p-state
control responsibility".  We're actually just telling SMM that the OS is
taking over p-states.  This might disable SMM involvement, or may just
change how SMM is involved -- we can't know which.  So I guess you're
right, and we end up with something like this:

- acpi_processor_disable_smm
+ acpi_processor_notify_smm

thanks,
-Len