how to find out IRQ end user

how to find out IRQ end user

[Matwey V. Kornilov]

Hello,

From /sys/kernel/debug/tracing I see the following points:

<idle>-0     [000] d.h1  2388.136032: irq_handler_entry: irq=16
name=gp_timer

Is there a simple way to figure out what is the exact final function
called to handle this IRQ?


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Re: how to find out IRQ end user

[Sudip Mukherjee]

On Wed, Jan 30, 2019 at 5:09 PM Matwey V. Kornilov
<matwey.kornilov@gmail.com> wrote:
>
> Hello,
>
> From /sys/kernel/debug/tracing I see the following points:
>
> <idle>-0     [000] d.h1  2388.136032: irq_handler_entry: irq=16
> name=gp_timer
>
> Is there a simple way to figure out what is the exact final function
> called to handle this IRQ?

omap2_gp_timer_interrupt()


-- 
Regards
Sudip

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Re: how to find out IRQ end user

[Matwey V. Kornilov]

ср, 13 февр. 2019 г. в 15:45, Sudip Mukherjee <sudipm.mukherjee@gmail.com>:
>
> On Wed, Jan 30, 2019 at 5:09 PM Matwey V. Kornilov
> <matwey.kornilov@gmail.com> wrote:
> >
> > Hello,
> >
> > From /sys/kernel/debug/tracing I see the following points:
> >
> > <idle>-0     [000] d.h1  2388.136032: irq_handler_entry: irq=16
> > name=gp_timer
> >
> > Is there a simple way to figure out what is the exact final function
> > called to handle this IRQ?
>
> omap2_gp_timer_interrupt()

How did you get it?

>
>
> --
> Regards
> Sudip



-- 
With best regards,
Matwey V. Kornilov

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Re: how to find out IRQ end user

[Sudip Mukherjee]

On Wed, Feb 13, 2019 at 7:37 PM Matwey V. Kornilov
<matwey.kornilov@gmail.com> wrote:
>
> ср, 13 февр. 2019 г. в 15:45, Sudip Mukherjee <sudipm.mukherjee@gmail.com>:
> >
> > On Wed, Jan 30, 2019 at 5:09 PM Matwey V. Kornilov
> > <matwey.kornilov@gmail.com> wrote:
> > >
> > > Hello,
> > >
> > > From /sys/kernel/debug/tracing I see the following points:
> > >
> > > <idle>-0     [000] d.h1  2388.136032: irq_handler_entry: irq=16
> > > name=gp_timer
> > >
> > > Is there a simple way to figure out what is the exact final function
> > > called to handle this IRQ?
> >
> > omap2_gp_timer_interrupt()
>
> How did you get it?

You have "name=gp_timer", just grep for gp_timer in kernel source.


-- 
Regards
Sudip

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