From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Tue, 18 Feb 2014 20:13:05 +0100 Subject: [PATCH v2 3/3] PCI: ARM: add support for generic PCI host controller In-Reply-To: <20140218184542.GA22004@obsidianresearch.com> References: <1392236171-10512-1-git-send-email-will.deacon@arm.com> <1663692.UxtD9eTEBL@wuerfel> <20140218184542.GA22004@obsidianresearch.com> Message-ID: <1507733.rhSv1eYnEK@wuerfel> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tuesday 18 February 2014 11:45:42 Jason Gunthorpe wrote: > > > Do we even need stable domain numbers? If we do, aliases sound fine. > > A more complex method would be to sort them by MMIO window address > > or perhaps by phandle. > > PCI ordering has been a bane in the past on x86, so I think stable > domain numbers is certainly desirable. Particularly since the domain > number may be influenced by module load order Alises followed by > sorting by phandle sounds great to me. Ok, makes sense. Let's make sure we come up with a stable numbering enforced by DT then, and warn when it's not there (or refuse to work even). Arnd