linux-kernel - Re: [PATCH 5/15] x86-64: Calgary - abstract how we find the iommu

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Date:	Mon, 4 Jun 2007 15:31:50 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Muli Ben-Yehuda <muli@...ibm.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/15] x86-64: Calgary - abstract how we find the iommu_table for a device

On Mon, Jun 04, 2007 at 10:13:46PM +0300, Muli Ben-Yehuda wrote:
> It's already being used in mainline by both NUMA and Calgary (but in
> such a way that both work. Magic). Clearly the solution is what we did
> for pciseg, have a struct sysdata that is extensible, but those pciseg
> bits don't seem any closer to going upstream?

You are missing:

* allocation code in arch/i386/pci/common.c
* use of the more-generic pci_iommu() wrapper in Calgary code
* ditto in arch/x86_64/kernel/tce.c
* pci_sysdata initialization in arch/x86_64/pci/k8-bus.c
* definition of pci_sysdata in include/asm-i386/pci.h
* bug fix in include/asm-i386/topology.h
* definition of pci_sysdata in include/asm-x86_64/pci.h
* bug fix in include/asm-x86_64/topology.h

You need to take the obviously relevant, non-PCI-domain code from
#pciseg and push it upstream.

	Jeff



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