From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
To: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: benh@kernel.crashing.org, linux-pci@atrey.karlin.mff.cuni.cz,
linux-arch@vger.kernel.org, Russell King <rmk@arm.linux.org.uk>,
linux-arm-kernel@lists.arm.linux.org.uk,
Kyle McMartin <kyle@parisc-linux.org>,
Matthew Wilcox <matthew@wil.cx>,
Grant Grundler <grundler@parisc-linux.org>,
linux-parisc@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
linuxppc-dev@ozlabs.org, Chris Zankel <chris@zankel.net>
Subject: Re: [patch 4/4] RFC: PCI: consolidate several pcibios_enable_resources() implementations
Date: Tue, 19 Feb 2008 20:08:15 +0300 [thread overview]
Message-ID: <20080219170814.GA8288@jurassic.park.msu.ru> (raw)
In-Reply-To: <200802190911.56901.bjorn.helgaas@hp.com>
On Tue, Feb 19, 2008 at 09:11:55AM -0700, Bjorn Helgaas wrote:
> > That is, whatever the arch code decides to use to decide whether
> > resources are assigned by firmware or by the first pass assignment code
> > or not and collide or not, once that phase is finished (which is the
> > case when calling pcibios_enable_device(), having the resource in the
> > resource-tree or not is, I believe, the proper way to test whether it's
> > a useable resource.
>
> So should x86 adopt that collision check?
Yes, and other arches as well, I believe.
> I don't hear anything about
> actual architecture differences that are behind this implementation
> difference.
On ppc64 "0" can be a valid value for resource start, as far as I know.
Ivan.
next prev parent reply other threads:[~2008-02-19 17:08 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-19 4:39 [patch 0/4] RFC: PCI: consolidate several pcibios_enable_resources() implementations Bjorn Helgaas
2008-02-19 4:39 ` [patch 1/4] PCI: split pcibios_enable_resources() out of pcibios_enable_device() Bjorn Helgaas
2008-02-19 6:27 ` Benjamin Herrenschmidt
2008-02-19 4:39 ` [patch 2/4] ppc: make pcibios_enable_device() use pcibios_enable_resources() Bjorn Helgaas
2008-02-19 6:26 ` Benjamin Herrenschmidt
2008-02-19 4:39 ` [patch 3/4] xtensa: " Bjorn Helgaas
2008-02-19 4:39 ` [patch 4/4] RFC: PCI: consolidate several pcibios_enable_resources() implementations Bjorn Helgaas
2008-02-19 6:31 ` Benjamin Herrenschmidt
2008-02-19 16:11 ` Bjorn Helgaas
2008-02-19 17:08 ` Ivan Kokshaysky [this message]
2008-02-19 20:21 ` Benjamin Herrenschmidt
2008-02-19 6:33 ` Benjamin Herrenschmidt
2008-02-19 7:03 ` Kyle McMartin
2008-02-19 6:11 ` [patch 0/4] " Kyle McMartin
2008-02-19 8:09 ` Russell King
2008-02-19 10:08 ` Benjamin Herrenschmidt
2008-02-19 18:02 ` Bjorn Helgaas
2008-02-20 6:24 ` Grant Grundler
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