Re: [PATCH 11/12] ACPI: use of ACPI_FADT_32BIT_TIMER is not allowed in HW reduced mode

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On Thursday, November 21, 2013 04:43:59 PM Al Stone wrote:
> On 11/20/2013 03:15 PM, Al Stone wrote:
> > On 11/17/2013 03:26 PM, Rafael J. Wysocki wrote:
> >> On Saturday, November 09, 2013 06:36:21 PM al.stone@xxxxxxxxxx wrote:
> >>> From: Al Stone <ahs3@xxxxxxxxxx>
> >>
> >> I'm reading the patch as "the timer resolution in HW reduced mode is
> >> always
> >> 32-bit".  Is my reading correct?
> >
> > Whups, I see what I did.  You are reading the patch correctly.
> >
> > However, what the code should ultimately do is ignore the
> > ACPI_FADT_32BIT_TIMER flag completely.  Let me look at where the
> > timer_resolution field is being used also since it is not immediately
> > clear what value it should have, or if it should even be used, when
> > in reduced HW mode.
> 
> On further investigation, I'll take this patch out of this set.
> I think this needs better handling in the ACPICA code so I'll work
> with them on that.
> 
> In the meantime, the spec seems to be completely mum on what the
> timer resolution should be in reduced HW mode.

If that's about the ACPI PM timer, that's because it's not present
at all in HW reduced mode.

Thanks!

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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