[PATCH] Account RMI XLR interrupts

[Randall Stewart]

Rui:

Let me commit the whole works when I get back to CA..

That won't be until a week from Sunday... unless your
desperate to get this in..

I was hoping to get to the bottom of the other SMP crash I see
before dumping all of JC's patches in..

But if you need this badly enough go ahead...

R
On Apr 28, 2010, at 4:28 AM, Rui Paulo wrote:

>
> On 20 Apr 2010, at 12:36, Rui Paulo wrote:
>
>> Hi,
>> The following patch accounts interrupts on the XLR and makes vmstat  
>> -i and systat work display useful data. I think the commented out  
>> atomic inc can go away, but I'm not sure.
>>
>> Here's an example:
>>
>> $ vmstat -i
>> interrupt                          total       rate
>> int16:                             56118        984
>> int17:                               214          3
>> Total                              56332        988
>>
>> int16 is the timer and int17 is the network interface (rge1).
>>
>> Index: intr_machdep.c
>> ===================================================================
>> --- intr_machdep.c	(revision 206791)
>> +++ intr_machdep.c	(working copy)
>> @@ -157,28 +157,17 @@
>> 	for (i = sizeof(eirr) * 8 - 1; i >= 0; i--) {
>> 		if ((eirr & (1ULL << i)) == 0)
>> 			continue;
>> 		ie = mips_intr_events[i];
>> 		/* atomic_add_long(mih->cntp, 1); */
>> +		/* Don't account special IRQs */
>> +		switch (i) {
>> +		case IRQ_IPI:
>> +		case IRQ_MSGRING:
>> +			break;
>> +		default:
>> +			mips_intrcnt_inc(mips_intr_counters[i]);
>> +		}
>>
>> 		write_c0_eirr64(1ULL << i);
>> 		pic_ack(i, 0);
>>
>
> Can I commit this?
>
> Regards,
> --
> Rui Paulo
>
>
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------------------------------
Randall Stewart
803-317-4952 (cell)
803-345-0391(direct)