Subject: Re: stray interrupt ipl 0x7
To: Rui Paulo <rpaulo@NetBSD.org>
From: David Laight <david@l8s.co.uk>
List: port-sparc
Date: 07/29/2005 20:18:18
On Fri, Jul 29, 2005 at 08:12:30PM +0100, Rui Paulo wrote:
> | The traditional fix is to perform a read-back of the written address
> | to flush the write through the store buffer and PCI bridges.
>
> Does that also applies to SBus ?
I can't remember whether the mbus<->sbus bridge buffers writes, but the
cpu does! So a read-back fixes things on sbus systems.
David
--
David Laight: david@l8s.co.uk