Vineet,
On 11/12/15 12:20, Vineet Gupta wrote:
> Hi Marc,
>
> On Friday 11 December 2015 04:53 PM, Marc Zyngier wrote:
>> On Fri, 11 Dec 2015 05:26:02 +
>>> I think we can make percpu irq API a bit easier to use.
>>>
>>> (1) First thing which request_percpu_irq() does is check for
>>> irq_set
Hi Marc,
On Friday 11 December 2015 04:53 PM, Marc Zyngier wrote:
> On Fri, 11 Dec 2015 05:26:02 +
>> I think we can make percpu irq API a bit easier to use.
>>
>> (1) First thing which request_percpu_irq() does is check for
>> irq_settings_is_per_cpu_devid(). Thus irq_set_percpu_devid() can b
On Fri, 11 Dec 2015 05:26:02 +
Vineet Gupta wrote:
Hi Vineet,
> Hi Marc,
>
> On Thursday 10 December 2015 03:26 PM, Marc Zyngier wrote:
> > Hi Vinnet,
> >
> > On 10/12/15 09:25, Vineet Gupta wrote:
> >> Hi Marc / Daniel / Jason,
> >>
> >> I had a couple of questions about percpu irq API, ho
arc_request_percpu_irq() is called by all cores to request/enable percpu
irq. It has some "prep" calls needed by genirq:
- setup percpu devid
- disable IRQ_NOAUTOEN
However given that enable_percpu_irq() is called enayways, latter can be
avoided.
We are now left with irq_set_percpu_devid() quir
This was the second perf intr issue
perf sampling on multicore requires intr to be enabled on all cores.
ARC perf probe code used helper arc_request_percpu_irq() which calls
- request_percpu_irq() on core0
- enable_percpu_irq() on all all cores (including core0)
genirq requires that request be
As part of fixing another perf issue, observed that after a perf run,
the interrupt got disabled on one/more cores.
| [ARCLinux]# cat /proc/interrupts | grep perf
| 20:0 0 0 0 ARCv2 core Intc 20 ARC perf counters
|
| [ARCLinux]# perf record -c 2 /sbin/hackbench
| Running
Hi Thomas, Marc, Peter
Fixed a bunch of perf interrupt issues in ARC port.
Apologies for extraneous CC. I think I'm doing the right thing here, and things
start to work after these patches, but still running by domain experts to keep
them in loop :-)
Thx,
-Vineet
Vineet Gupta (3):
ARCv2: intc:
On Tuesday 01 December 2015 06:59 PM, Marc Zyngier wrote:
>> +static int nps400_irq_map(struct irq_domain *d, unsigned int irq,
>> > +irq_hw_number_t hw)
>> > +{
>> > + switch (irq) {
>> > + case TIMER0_IRQ:
>> > +#if defined(CONFIG_SMP)
>> > + case IPI_IRQ:
>> > +#endif
>> >
