linux-kernel - RE: [ANNOUNCE] iommu-2.6.git tree

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Message-ID: <A6AD88C3F2289247BE726C37303E1EB8848EC07E@orsmsx505.amr.corp.intel.com>
Date:	Mon, 20 Oct 2008 11:06:15 -0700
From:	"Yu, Fenghua" <fenghua.yu@...el.com>
To:	'FUJITA Tomonori' <fujita.tomonori@....ntt.co.jp>,
	"'joro@...tes.org'" <joro@...tes.org>
CC:	"'dwmw2@...radead.org'" <dwmw2@...radead.org>,
	"'mingo@...e.hu'" <mingo@...e.hu>,
	"'iommu@...ts.linux-foundation.org'" 
	<iommu@...ts.linux-foundation.org>,
	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>,
	"Luck, Tony" <tony.luck@...el.com>,
	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	"'sfr@...b.auug.org.au'" <sfr@...b.auug.org.au>,
	"'andreas.herrmann3@....com'" <andreas.herrmann3@....com>,
	"Cihula, Joseph" <joseph.cihula@...el.com>,
	"'akpm@...ux-foundation.org'" <akpm@...ux-foundation.org>,
	"'jbarnes@...tuousgeek.org'" <jbarnes@...tuousgeek.org>,
	"'tglx@...utronix.de'" <tglx@...utronix.de>,
	"'torvalds@...ux-foundation.org'" <torvalds@...ux-foundation.org>
Subject: RE: [ANNOUNCE] iommu-2.6.git tree

>IA64 and PARISC uses the same IOMMU hardware but they duplicate the
>driver for them (the drivers are very similar). Calgary and POWER also
>have similar IOMMU drivers. But I don't think it's worth merging them.

If you are talking about IA64 HP ZX1, then it does have same IOMMU hardware as PARISC.

But now David is pushing Intel VT-d IOMMU code for IA64. The hardware and driver are different from HP or PARISC. The hardware is same as x86 VT-d and the driver is ported from x86 IOMMU driver.

Thanks.

-Fenghua
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