linux-kernel - Re: [PATCH] add iommu_num

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Message-Id: <1217457872.11188.350.camel@pasglop>
Date:	Thu, 31 Jul 2008 08:44:32 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	David Miller <davem@...emloft.net>
Cc:	joerg.roedel@....com, sfr@...b.auug.org.au,
	fujita.tomonori@....ntt.co.jp, mingo@...e.hu, mingo@...hat.com,
	tglx@...utronix.de, linux-kernel@...r.kernel.org,
	iommu@...ts.linux-foundation.org, bhavna.sarathy@....com,
	robert.richter@....com, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, jbarnes@...tuousgeek.org,
	linux-next@...r.kernel.org
Subject: Re: [PATCH] add iommu_num_pages helper function

On Tue, 2008-07-29 at 03:10 -0700, David Miller wrote:
> From: Joerg Roedel <joerg.roedel@....com>
> Date: Tue, 29 Jul 2008 11:50:27 +0200
> 
> > I think moving that function to x86-only code is the best solution for
> > now. Before moving it back to generic code we need an architecture
> > independent way to find out the IOMMU page size.
> 
> My suggestion (again) is to pass it in as a "const unsigned long
> io_page_size" argument and update the callers.

Yeah. That's better

Ben.

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