There is a cpu_id parameter to request_local_irq in rtlinux.
The code to make a global interrupt appear only at a specific cpu is
in standard Linux and can easily be called -- see the io-apic.c code
or if you want I will explain how to do it.
On Mon, Sep 13, 1999 at 01:03:45PM +0000, dune wrote:
> Sven Heursch wrote:
> >
> > Hello,
> >
> > is it possible (maybe in further versions of RT-Linux) to define that a
> > specific cpu could react on a specific interrupt and run its specific
> > interrupt service routine?
> > For example cpu 1 will react on interrupts 1 - 7, 9-16 and cpu 2 is only
> > interested in the interrupt 8.
> >
>
> Look at the RTAI project, which is close to RT-linux project with
> SMP extensions .
>
> http://server.aero.polimi.it/projects/rtai/
>
> I use it on Dual-PIII, and assign tasks to specific processor
> and attach irq to specific processor too.
> only 2 functions to manage it :
>
> void rt_set_runnable_on_cpus(RT_TASK *task,unsigned int cpu_mask) ;
> and
> int rt_assign_irq_to_cpu(int irq,int cpu) ;
>
> -> the cpu_mask allow you to set task runnable on CPU #2 & #3 but not on
> CPU #1 for exemple.
>
>
> Good Luck.
>
> --
> Kumsta Christophe
> <[EMAIL PROTECTED]>
> Real-Time System developper
> RT-Linux ( Use the Source Luck !)
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