On 02/23/2012 04:57 AM, Ming Lei wrote:
No, it doesn't work with upstream kernel now. You need to apply the
patches[1][2]
against upstream kernel to route CTIs IRQ so that OMAP4 PMU/perf can work well.
[1], http://marc.info/?l=linux-omap&m=132686049213313&w=2
[2], http://marc.info/?l=linux-arm-kernel&m=132687938417894&w=2
I'm not sure about "well" :-(:
...
irq 34: nobody cared (try booting with the "irqpoll" option)
...
Disabling IRQ #34
irq 33: nobody cared (try booting with the "irqpoll" option)
...
Disabling IRQ #33
...
cat /proc/interrupts ==>
CPU0 CPU1
29: 302749 362285 GIC twd
33: 400001 0 GIC arm-pmu
34: 0 400001 GIC arm-pmu
Dmitry
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