Subject: Re: [PATCH 3/4] myri10ge - Driver core
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Ingo Oeser <netdev@axxeo.de>
Cc: Anton Blanchard <anton@samba.org>, Brice Goglin <brice@myri.com>,
       netdev@vger.kernel.org, gallatin@myri.com, linux-kernel@vger.kernel.org
In-Reply-To: <200605261149.18415.netdev@axxeo.de>
References: <20060517220218.GA13411@myri.com>
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Date: Fri, 26 May 2006 20:02:00 +1000
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> > No proper interface exposed, he'll have to do an #ifdef powerpc here or
> > such and use __ioremap with explicit page attributes. I have a hack to
> > do that automatically for memory covered by prefetchable PCI BARs when
> > mmap'ing from userland but not for kernel ioremap.
> 
> Stupid question: pci_iomap() is NOT what you are looking for, right?
> 
> Implementation is at the end of lib/iomap.c

No, there is no difference there, pci_iomap won't help for passing in
platform specific page attributes for things like write combining.

Ben.


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