On Fri, 30 May 2008 14:41:17 -0500 Scott Wood <[EMAIL PROTECTED]> wrote:
> Kim Phillips wrote: > > On Fri, 30 May 2008 22:09:04 +0400 > > Evgeniy Polyakov <[EMAIL PROTECTED]> wrote: > >> Don't you want to protect against simultaneous access to register space > >> from different CPUs? Or it is single processor board only? > > > > Doesn't linux mask the IRQ line for the interrupt currently being > > serviced, and on all processors? > > Yes. Could there be interference from non-interrupt driver code on > another cpu (or interrupted code), though? not that I can see - the fetch fifo register writes are protected with per-channel spinlocks. Kim _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
