Re: Fw: ACPI, pm timer and ASUS a8v

[Jonas Oreland <jonas-fAbYwIrWRvUAvxtiuMwx3w@public.gmane.org>]

Li, Shaohua wrote:
> How about add something like this:
> if (fadt->revision >= FADT2_REVISION_ID) {
> 		/* FADT rev. 2 */
> 		if (fadt->xpm_tmr_blk.address_space_id !=
> ACPI_ADR_SPACE_SYSTEM_IO)
> 			return 0;
> 
> 		pmtmr_ioport = fadt->xpm_tmr_blk.address;
> +		if (!pmtmr_ioport)
> +			pmtmr_ioport = fadt->V1_pm_tmr_blk;
> 	} else {
> 		/* FADT rev. 1 */
> 		pmtmr_ioport = fadt->V1_pm_tmr_blk;
> 	}

this works

/jonas

ps.
	I opened as andrew suggested a bug report: http://bugzilla.kernel.org/show_bug.cgi?id=5283
ds.

> 
> 
> 
>>-----Original Message-----
>>From: Jonas Oreland [mailto:jonas-fAbYwIrWRvUAvxtiuMwx3w@public.gmane.org]
>>Sent: Wednesday, September 21, 2005 3:44 PM
>>To: Li, Shaohua
>>Cc: Andrew Morton; acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
>>Subject: Re: [ACPI] Fw: ACPI, pm timer and ASUS a8v
>>
>>Li, Shaohua wrote:
>>
>>>Hi Jonas,
>>>What the dmesg in the failure case? It seems the attched dmesg has
> 
> the
> 
>>>correct pm-timer info.
>>
>>yes, this is the "my own hardcoded" version.
>>
>>attaching one from failure case.
>>
>>thank you for looking at it.
>>
>>/Jonas
>>
>>
>>>Thanks,
>>>Shaohua
>>>
>>>
>>>
>>>>-----Original Message-----
>>>>From: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org [mailto:acpi-devel-
>>>>admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org] On Behalf Of Andrew Morton
>>>>Sent: Wednesday, September 21, 2005 2:18 PM
>>>>To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
>>>>Cc: Jonas Oreland
>>>>Subject: [ACPI] Fw: ACPI, pm timer and ASUS a8v
>>>>
>>>>
>>>>Jonas, you'll probably need to raise an ACPi report at
>>>
>>>bugzilla.kernel.org
>>>
>>>
>>>>for this one please.
>>>>
>>>>Begin forwarded message:
>>>>
>>>>Date: Tue, 20 Sep 2005 14:12:53 +0200
>>>>From: Jonas Oreland <jonas-fAbYwIrWRvUAvxtiuMwx3w@public.gmane.org>
>>>>To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>>>>Subject: ACPI, pm timer and ASUS a8v
>>>>
>>>>
>>>>Hi,
>>>>
>>>>I running 2.6.12-gentoo-r10
>>>>I have a ASUS a8v motherboard with a AMD64 X2
>>>>
>>>>This gives me problem with clock drift
>>>>(see http://bugzilla.kernel.org/show_bug.cgi?id=5105)
>>>>
>>>>So I tried using notsc to force usage of pm timer.
>>>>
>>>>But!
>>>>The the acpi code find the fadt->xpm_tmr_blk.address to 0
>>>>Making the code yet again fall back to PIT/TSC
>>>>
>>>>I booted my system can run
>>>>perch> grep PM_ /proc/ioports
>>>>0808-080b : PM_TMR
>>>>
>>>>And harded the address 0x808 into pmtmr_ioport
>>>>This works. The system is using pmtmr and I get no clock drift
>>>>(tested now for ~a day)
>>>>
>>>>But why do ACPI find 0 as pmtmr_ioport?
>>>>
>>>>/Jonas
>>>
>>>
>>>
> 
> 



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