From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Olof Johansson <olof@lixom.net>
Cc: linuxppc-dev list <linuxppc-dev@ozlabs.org>,
bcm43xx-dev@lists.berlios.de
Subject: Re: 30 bits DMA and ppc
Date: Mon, 31 Oct 2005 08:41:54 +1100 [thread overview]
Message-ID: <1130708514.29054.292.camel@gaston> (raw)
In-Reply-To: <20051030213517.GA11327@pb15.lixom.net>
> The non-iommu case might want to do that for other devices as well,
> i.e. 32-bit limited ones on 64-bit machines.
Yup, that would be useful with some 3rd party bridges that don't have an
iommu ... :)
> Yep, the table is already split once, and I'm not sure in retrospect how
> useful that split was anyway, it can maybe go away. Switching it around
> shouldn't be a big issue.
No real need to split permanently... the search could be restricted to a
given range easily.
Ben.
next prev parent reply other threads:[~2005-10-30 21:43 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-30 4:03 30 bits DMA and ppc Benjamin Herrenschmidt
2005-10-30 8:47 ` [Bcm43xx-dev] " Michael Buesch
2005-10-30 17:59 ` Olof Johansson
2005-10-30 21:14 ` Benjamin Herrenschmidt
2005-10-30 21:35 ` Olof Johansson
2005-10-30 21:41 ` Benjamin Herrenschmidt [this message]
2005-10-30 22:02 ` Olof Johansson
2005-10-31 0:35 ` exception vectors Ingmar
2005-10-31 2:17 ` Benjamin Herrenschmidt
2005-10-31 2:28 ` Hollis Blanchard
2005-10-31 9:58 ` Ingmar
2005-11-01 1:46 ` Olof Johansson
2005-11-01 8:28 ` Ingmar
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