From: Mike Fedyk <mfedyk@matchmail.com>
To: James Bottomley <James.Bottomley@steeleye.com>
Cc: Christopher Friesen <cfriesen@nortelnetworks.com>,
linux-kernel@vger.kernel.org
Subject: Re: how is processor cache coherency maintained for device drivers
Date: Mon, 12 Nov 2001 13:59:12 -0800 [thread overview]
Message-ID: <20011112135912.A32099@mikef-linux.matchmail.com> (raw)
In-Reply-To: <200111111655.fABGtr610172@localhost.localdomain>
In-Reply-To: <200111111655.fABGtr610172@localhost.localdomain>
On Sun, Nov 11, 2001 at 08:55:52AM -0800, James Bottomley wrote:
> I believe (although you should take better advice from the PPC people) that
> the powerpc is completely cache coherent, so any coherency problems you may be
> having would be due to the hardware, not the kernel.
>
IIRC (probably wrong though) the PPC is not coherent for one of its caches,
but is for another. PPC people would definately know the details, I'm just
thinking of a thread I read on this a few weeks ago...
Mike
next prev parent reply other threads:[~2001-11-12 21:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-11 16:55 how is processor cache coherency maintained for device drivers James Bottomley
2001-11-12 21:59 ` Mike Fedyk [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-11-09 21:46 Christopher Friesen
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