Re: [ACPI] acpi problem with nforce motherboards and ethernet

["Luis Miguel García" <ktech@wanadoo.es>]

Maciej W. Rozycki wrote:

>On Thu, 5 Feb 2004, Andrew Morton wrote:
>
>  
>
>>>By the way, is anyone involved in solving the IO-APIC thing in nforce 
>>>motherboards? Anyone trying a different approach? Anyone contacting 
>>>nvidia about this problem?
>>>      
>>>
>>As far as I know, we're dead in the water on these problems.
>>    
>>
>
> Not necessarily. :-)
>
>  
>
>>Here's one:
>>
>>
>>[x86] do not wrongly override mp_ExtINT IRQ
>>
>>From: Mathieu <cheuche+lkml@free.fr>.
>>
>>With this patch timer IRQ0 is correctly set to IO-APIC-edge
>>(not XT-PIC) on nForce2 boards when using APIC and ACPI.
>>
>> arch/i386/kernel/mpparse.c |    3 ++-
>> 1 files changed, 2 insertions(+), 1 deletion(-)
>>
>>diff -puN arch/i386/kernel/mpparse.c~nforce2-apic arch/i386/kernel/mpparse.c
>>--- linux-2.6.0-test11/arch/i386/kernel/mpparse.c~nforce2-apic	2003-12-08 00:12:25.782597272 +0100
>>+++ linux-2.6.0-test11-root/arch/i386/kernel/mpparse.c	2003-12-08 00:12:25.786596664 +0100
>>@@ -962,7 +962,8 @@ void __init mp_override_legacy_irq (
>> 	 */
>> 	for (i = 0; i < mp_irq_entries; i++) {
>> 		if ((mp_irqs[i].mpc_dstapic == intsrc.mpc_dstapic) 
>>-			&& (mp_irqs[i].mpc_srcbusirq == intsrc.mpc_srcbusirq)) {
>>+			&& (mp_irqs[i].mpc_srcbusirq == intsrc.mpc_srcbusirq)
>>+			&& (mp_irqs[i].mpc_irqtype == intsrc.mpc_irqtype)) {
>> 			mp_irqs[i] = intsrc;
>> 			found = 1;
>> 			break;
>>    
>>
>
> That's not the right fix.  There's a bug in Linux's ACPI IRQ setup as
>I've discovered by comparing the code to the spec.  Here's a patch I sent
>in December both to the LKML and the ACPI maintainer.  The feedback from
>the list was positive, but the maintainer didn't bother to comment.
>
> I haven't pushed the patch more firmly, because the MIPS port is my
>priority and I don't even have any ACPI-aware equipment.
>
> Maciej
>
>  
>
Can you send us the specific patch or at least telling us if you're 
going to push it?

Thanks a lot for the fix ;)

LuisMi Garcia