linux-kernel - Re: [PATCH] pci: introduce users of ioremap

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Date:	Wed, 1 Oct 2008 06:53:05 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Kyle McMartin <kyle@...artin.ca>
Cc:	Matthew Wilcox <matthew@....cx>, Kyle McMartin <kyle@...artin.ca>,
	Grant Grundler <grundler@...isc-linux.org>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH] pci: introduce users of ioremap_pcibar()

On Wed, 1 Oct 2008 09:07:17 -0400
Kyle McMartin <kyle@...artin.ca> wrote:
> > 
> > OK, not all architectures use the generic code, but I've been
> > through and they all do more or less the above (mn10300 and frv
> > just return the address, but their readl() and inl() are identical)
> > 
> 
> I don't recall anyone ever promising that the iomap interfaces would
> be usable with legacy accessors. I'd certainly prefer it if we
> didn't, as well, as it makes for more explicitly written drivers...
> 
> Just because you can use them, doesn't mean you should.
> 

ok so now we're full circle.
I started with a real ioremap, was told "no must use iomap" despite the
same argument you make, and now we're back to square one.

What I want is an interface that can replace ioremap() for the common
"I want the bar uncached" case. Nothing more nothing less.... sigh.


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
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