From: Gabriel Paubert <paubert@iram.es>
To: wilhardt@synergymicro.com
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: MPC7455 and lwarx
Date: Wed, 27 Nov 2002 14:00:55 +0100 [thread overview]
Message-ID: <3DE4C207.8020500@iram.es> (raw)
In-Reply-To: 3DE3EF0B.F3204162@synergymicro.com
Dave Wilhardt wrote:
> Hello,
>
> Is anyone using the MPC745x series and performing lwarx/stwcx. in non
> cached
> space? The 7410 didn't seem to care but the MPC7455 take a DSI
> exception
> on non cached regions. Is there a work-around?
No, it is documented somewhere in Motorola docs that lwarx/stwcx. only
work on writeback cacheable space. Earlier processors allow non-cacheable
space, I believe that this restriction was introduced with the 7440/7450.
Regards,
Gabriel
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-11-27 13:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-26 22:00 MPC7455 and lwarx Dave Wilhardt
2002-11-27 13:00 ` Gabriel Paubert [this message]
2002-11-27 14:46 ` Dan Malek
2002-11-27 17:11 ` Dave Wilhardt
2002-11-27 17:32 ` Gabriel Paubert
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