# \[PATCH 2/3\] arm: pmu: support pmu irq routed from CTI

- From: Ming Lei \<tom.leiming@gmail.com\>
- Date: 2011-03-01 15:31:46 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2011/03/8570200
- Thread: https://ratatoskr.run/linux-arm-kernel/2011/03/8570200/t.md

```text
Hi,

2011/3/1 Will Deacon [ref]:
> Hello,
>
>> Subject: [PATCH 2/3] arm: pmu: support pmu irq routed from CTI
>>
>> From: Ming Lei <tom.leiming@gmail.com>
>>
>> This patch introduces pmu_platform_data struct to
>> support pmu irq routed from CTI, such as implemented
>> on OMAP4.
>>
>> Generally speaking, clearing cti irq should be done in
>> irq handler, also enabling cti module after calling
>> request_irq and disabling cti module before calling
>> free_irq.
>>
>> Signed-off-by: Ming Lei <tom.leiming@gmail.com>
>> ---
>> ?arch/arm/include/asm/pmu.h ? | ? 12 ++++++++++
>> ?arch/arm/kernel/perf_event.c | ? 51 ++++++++++++++++++++++++++++++++++++-----
>> ?2 files changed, 56 insertions(+), 7 deletions(-)
>
> This will conflict with the the ux500 PMU workaround:
>
> http://lists.infradead.org/pipermail/linux-arm-kernel/2011-February/041145.html

Thanks for your pointing out it.

I will send out -v1 of these patches against the latest -next tree.


thanks,
-- 
Lei Ming
```