From: Matt Porter <porter@cox.net>
To: "David S. Miller" <davem@redhat.com>
Cc: rmk@arm.linux.org.uk, porter@cox.net, linux-kernel@vger.kernel.org
Subject: Re: *dma_sync_single API change to support non-coherent cpus
Date: Mon, 3 Mar 2003 14:40:39 -0700 [thread overview]
Message-ID: <20030303144039.C31278@home.com> (raw)
In-Reply-To: <20030303.114723.65560821.davem@redhat.com>; from davem@redhat.com on Mon, Mar 03, 2003 at 11:47:23AM -0800
On Mon, Mar 03, 2003 at 11:47:23AM -0800, David S. Miller wrote:
> From: Russell King <rmk@arm.linux.org.uk>
> Date: Mon, 3 Mar 2003 19:58:25 +0000
>
> DaveM, as the author of the original PCI DMA API, any comments on this
> (probably ill-thoughtout) idea?
>
> Maybe a better idea is to kill map_single() altogether, and use
> scatterlists everywhere.
>
> Long term this is the kind of consolidation that ought to
> happen anyways.
>
> And then the implementation can stick whatever it wants in there.
Eliminating map_single() does solve our problem, but I take "Long term"
to mean 2.7. Is the proposed solution acceptable for 2.5/2.6 or are
we stuck documenting the limitation until 2.7?
Thanks,
--
Matt Porter
porter@cox.net
This is Linux Country. On a quiet night, you can hear Windows reboot.
next prev parent reply other threads:[~2003-03-03 21:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-03 18:18 *dma_sync_single API change to support non-coherent cpus Matt Porter
2003-03-03 19:58 ` Russell King
2003-03-03 19:47 ` David S. Miller
2003-03-03 21:40 ` Matt Porter [this message]
2003-03-03 21:34 ` Matt Porter
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