From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [RFC 2/4] PCI: generic: Add support for ARM64 and MSI(x) Date: Thu, 06 Nov 2014 01:05:48 +0100 Message-ID: <2659321.LYB03rL97X@wuerfel> References: <1411937610-22125-1-git-send-email-suravee.suthikulpanit@amd.com> <2148776.X8NPqiYA6S@wuerfel> <20141105233921.GJ6168@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <20141105233921.GJ6168@google.com> Sender: linux-pci-owner@vger.kernel.org To: Bjorn Helgaas Cc: linux-arm-kernel@lists.infradead.org, Lorenzo Pieralisi , Mark Rutland , "devicetree@vger.kernel.org" , "jason@lakedaemon.net" , "linux-doc@vger.kernel.org" , Marc Zyngier , "linux-pci@vger.kernel.org" , Liviu Dudau , "linux-kernel@vger.kernel.org" , Will Deacon , "robh+dt@kernel.org" , "suravee.suthikulpanit@amd.com" , Catalin Marinas , "tglx@linutronix.de" List-Id: devicetree@vger.kernel.org On Wednesday 05 November 2014 16:39:21 Bjorn Helgaas wrote: > On Wed, Oct 22, 2014 at 10:52:19PM +0200, Arnd Bergmann wrote: > > On Wednesday 22 October 2014 16:59:14 Lorenzo Pieralisi wrote: > > > On Wed, Oct 01, 2014 at 10:38:45AM +0100, Arnd Bergmann wrote: > > > > > > [...] > > > > > > > The arm32 implementations of pci_domain_nr/pci_proc_domain can probably be > > > > removed if we change the arm32 pcibios_init_hw function to call the new > > > > interfaces that set the domain number. > > > > > > I wished, but it is a bit more complicated than I thought unfortunately, > > > mostly because some drivers, eg cns3xxx set the domain numbers > > > statically in pci_sys_data and this sets a chain of dependency that is > > > not easy to untangle. I think cns3xxx is the only legacy driver that "uses" > > > the domain number (in pci_sys_data) in a way that clashes with the > > > generic domain_nr implementation, I need to give it more thought. > > > > Just had a look at that driver, shouldn't be too hard to change, see below. > > > > Signed-off-by: Arnd Bergmann > > This patch is in my patchwork, but it lacks a topic & changelog and I'm not > sure of its state, so I'm going to drop it for now. Please post it again > if you want me to do something with it. I guess it only touches arch/arm, > so it would probably be merged via your tree anyway. Lorenzo has posted an updated version as "arm: cns3xxx: pci: remove artificial dependency on pci_sys_data domain", and a second patch that depends on it. That is the version we should be merging, though I'm not sure through which tree. Arnd