Subject: Re: callgraph ARM7
To: Ben Harris <>
From: Richard Earnshaw <>
List: port-arm
Date: 09/26/2001 20:45:31
> On Wed, 26 Sep 2001, Reinoud Zandijk wrote:
> > I'll also try to investigate the statclock stuff... what about FIQ for
> > statclock?
It wouldn't be a good idea to use FIQ for statclock anyway, it's just not 
important enough

> The right thing to do (on IOMD systems, at least)  is to use IOMD timer 1
> as the statclock, like arm26 does.  See cpu_initclocks() and
> ioc_irq_statclock() in sys/arch/arm26/iobus/ioc.c for an example.  There's
> a similar scheme in sys/arch/sparc/sparc/clock.c.

Last time I tried turning this on I got random machine lock-ups.  I wasn't 
able to find out why.