From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Paul Mackerras <paulus@samba.org>,
linuxppc-dev@lists.ozlabs.org, David Miller <davem@davemloft.net>,
mika.westerberg@linux.intel.com, netdev@vger.kernel.org,
linux-next@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: linux-next: build failure after merge of the final tree (net-next tree related)
Date: Fri, 21 Sep 2012 08:22:44 +1000 [thread overview]
Message-ID: <1348179764.1132.35.camel@pasglop> (raw)
In-Reply-To: <20120921081531.67db8a7d0ac1b35426b22c45@canb.auug.org.au>
> > I think the powerpc port is at fault here.
> >
> > Part of being able to advertise ISA_DMA_API is providing isa_virt_to_bus().
Hrm, that's ancient gunk, I'll have to dig. We potentially can support
ISA devices DMA'ing from an ISA bridge... but via the iommu, which means
isa_virt_to_bus is a non-starter.
But then, do we really care ? IE. Is there single device that actually
requires ISA_DMA_API and that is expected to work on any currently
supported powerpc hw ? :-)
We don't even support PReP anymore, so that leaves us with what ?
Anybody has an objection to turning ISA_DMA_API off ?
Cheers,
Ben.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: mika.westerberg@linux.intel.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-next@vger.kernel.org,
Paul Mackerras <paulus@samba.org>,
linuxppc-dev@lists.ozlabs.org, David Miller <davem@davemloft.net>
Subject: Re: linux-next: build failure after merge of the final tree (net-next tree related)
Date: Fri, 21 Sep 2012 08:22:44 +1000 [thread overview]
Message-ID: <1348179764.1132.35.camel@pasglop> (raw)
In-Reply-To: <20120921081531.67db8a7d0ac1b35426b22c45@canb.auug.org.au>
> > I think the powerpc port is at fault here.
> >
> > Part of being able to advertise ISA_DMA_API is providing isa_virt_to_bus().
Hrm, that's ancient gunk, I'll have to dig. We potentially can support
ISA devices DMA'ing from an ISA bridge... but via the iommu, which means
isa_virt_to_bus is a non-starter.
But then, do we really care ? IE. Is there single device that actually
requires ISA_DMA_API and that is expected to work on any currently
supported powerpc hw ? :-)
We don't even support PReP anymore, so that leaves us with what ?
Anybody has an objection to turning ISA_DMA_API off ?
Cheers,
Ben.
next prev parent reply other threads:[~2012-09-20 22:22 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-20 7:36 linux-next: build failure after merge of the final tree (net-next tree related) Stephen Rothwell
2012-09-20 7:36 ` Stephen Rothwell
2012-09-20 9:10 ` Mika Westerberg
2012-09-20 20:45 ` David Miller
2012-09-20 22:15 ` Stephen Rothwell
2012-09-20 22:15 ` Stephen Rothwell
2012-09-20 22:15 ` Stephen Rothwell
2012-09-20 22:22 ` Benjamin Herrenschmidt [this message]
2012-09-20 22:22 ` Benjamin Herrenschmidt
2012-09-20 22:53 ` David Miller
2012-09-20 22:53 ` David Miller
2012-09-21 21:46 ` Benjamin Herrenschmidt
2012-09-21 21:46 ` Benjamin Herrenschmidt
2012-09-22 20:00 ` David Miller
2012-09-22 20:00 ` David Miller
2012-09-22 21:20 ` Benjamin Herrenschmidt
2012-09-22 21:20 ` Benjamin Herrenschmidt
2012-09-20 22:28 ` Stephen Rothwell
2012-09-20 22:28 ` Stephen Rothwell
2012-09-20 22:28 ` Stephen Rothwell
2012-09-21 1:37 ` Stephen Rothwell
2012-09-21 1:37 ` Stephen Rothwell
-- strict thread matches above, loose matches on Subject: below --
2014-03-18 7:27 Stephen Rothwell
2014-03-18 7:27 ` Stephen Rothwell
2014-03-19 3:13 ` David Miller
2014-03-17 10:21 Stephen Rothwell
2014-03-17 10:21 ` Stephen Rothwell
2014-03-19 3:11 ` David Miller
2014-03-17 10:13 Stephen Rothwell
2014-03-17 10:13 ` Stephen Rothwell
2013-09-02 9:11 Stephen Rothwell
2013-09-02 9:11 ` Stephen Rothwell
2013-09-02 9:18 ` Cong Wang
2013-07-03 7:48 Stephen Rothwell
2013-07-03 7:48 ` Stephen Rothwell
2013-07-03 7:51 ` Sedat Dilek
2013-07-03 8:45 ` Eliezer Tamir
2013-07-03 19:17 ` David Miller
2013-06-26 7:56 Stephen Rothwell
2013-06-26 7:56 ` Stephen Rothwell
2013-06-26 8:07 ` Alexey Brodkin
2013-06-26 8:36 ` David Miller
2013-04-23 7:46 Stephen Rothwell
2013-04-23 7:46 ` Stephen Rothwell
2013-04-23 17:10 ` David Miller
2013-04-23 23:44 ` David Rientjes
2013-04-12 6:00 Stephen Rothwell
2013-04-12 6:00 ` Stephen Rothwell
2013-04-12 7:08 ` David Miller
2013-03-28 5:04 Stephen Rothwell
2013-03-28 5:04 ` Stephen Rothwell
2013-03-28 5:19 ` David Miller
2013-01-03 3:23 Stephen Rothwell
2013-01-03 3:23 ` Stephen Rothwell
2013-01-03 3:28 ` David Miller
2013-01-03 9:51 ` David Miller
2012-09-05 5:39 Stephen Rothwell
2012-09-05 5:39 ` Stephen Rothwell
2012-09-05 21:46 ` David Miller
2012-09-04 6:58 Stephen Rothwell
2012-09-04 18:20 ` David Miller
2012-09-04 19:50 ` Jerry Chu
2012-07-22 6:34 Stephen Rothwell
2012-07-22 7:29 ` Jiri Pirko
2012-05-03 6:16 Stephen Rothwell
2012-05-03 6:16 ` Stephen Rothwell
2012-05-03 6:26 ` David Miller
2012-04-30 5:58 Stephen Rothwell
2012-04-30 5:58 ` Stephen Rothwell
2012-04-30 17:22 ` David Miller
2012-04-19 6:28 Stephen Rothwell
2012-04-19 6:28 ` Stephen Rothwell
2012-04-19 6:40 ` David Miller
2012-04-10 5:29 Stephen Rothwell
2012-04-10 5:29 ` Stephen Rothwell
2012-04-10 13:26 ` David Miller
2012-04-05 3:25 Stephen Rothwell
2012-04-05 3:25 ` Stephen Rothwell
2012-04-05 3:59 ` David Miller
2012-04-06 7:09 ` Giuseppe CAVALLARO
2012-04-06 7:30 ` Giuseppe CAVALLARO
2012-02-20 5:15 Stephen Rothwell
2012-02-20 5:15 ` Stephen Rothwell
2012-02-20 5:46 ` David Miller
2011-12-14 7:07 Stephen Rothwell
2011-12-14 7:07 ` Stephen Rothwell
2011-12-14 18:35 ` David Miller
2011-11-23 4:00 Stephen Rothwell
2011-11-23 4:00 ` Stephen Rothwell
2011-11-23 12:09 ` Neil Horman
2011-11-23 23:02 ` Andrew Morton
2011-11-23 23:44 ` David Miller
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