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From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	Mark Rutland <Mark.Rutland@arm.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"jason@lakedaemon.net" <jason@lakedaemon.net>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	Marc Zyngier <Marc.Zyngier@arm.com>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	Liviu Dudau <Liviu.Dudau@arm.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Will Deacon <Will.Deacon@arm.com>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"suravee.suthikulpanit@amd.com" <suravee.suthikulpanit@amd.com>,
	Catalin Marinas <Catalin.Marinas@arm.com>,
	"tglx@linutronix.de" <tglx@linutronix.de>
Subject: Re: [RFC 2/4] PCI: generic: Add support for ARM64 and MSI(x)
Date: Thu, 6 Nov 2014 09:52:31 +0000	[thread overview]
Message-ID: <20141106095231.GA1923@red-moon> (raw)
In-Reply-To: <2659321.LYB03rL97X@wuerfel>

On Thu, Nov 06, 2014 at 12:05:48AM +0000, Arnd Bergmann wrote:
> 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 <arnd@arndb.de>
> > 
> > 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.

I am posting a v2 shortly, let's discuss the best way to merge it then.

Thanks,
Lorenzo

  reply	other threads:[~2014-11-06  9:52 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-28 20:53 [RFC 0/4] Add PCI/MSI(x) support for AMD Seattle Platform suravee.suthikulpanit
2014-09-28 20:53 ` [RFC 1/4] arm64: amd-seattle: Adding device tree for AMD Seattle platform suravee.suthikulpanit
2014-10-10 13:45   ` Mark Rutland
2014-10-24 12:08     ` Suravee Suthikulpanit
2014-09-28 20:53 ` [RFC 2/4] PCI: generic: Add support for ARM64 and MSI(x) suravee.suthikulpanit
2014-09-29 14:36   ` Arnd Bergmann
2014-09-30 12:03     ` Lorenzo Pieralisi
2014-09-30 12:31       ` Arnd Bergmann
2014-09-30 16:12         ` Lorenzo Pieralisi
2014-09-30 16:42           ` Liviu Dudau
2014-09-30 17:35             ` Lorenzo Pieralisi
2014-09-30 17:48               ` Liviu Dudau
2014-09-30 18:54                 ` Arnd Bergmann
2014-09-30 20:01                   ` Arnd Bergmann
2014-10-01  8:46                     ` Liviu Dudau
2014-10-01  9:38                       ` Arnd Bergmann
2014-10-07 12:06                         ` Lorenzo Pieralisi
2014-10-07 13:52                           ` Arnd Bergmann
2014-10-07 14:47                             ` Lorenzo Pieralisi
2014-10-07 21:39                               ` Arnd Bergmann
2014-10-08 10:19                                 ` Lorenzo Pieralisi
2014-10-08 14:47                                   ` Arnd Bergmann
2014-10-09  9:04                                     ` Lorenzo Pieralisi
2014-10-09 10:51                                       ` Arnd Bergmann
2014-10-10 13:58                                         ` Lorenzo Pieralisi
2014-10-10 18:31                                           ` Arnd Bergmann
2014-10-13  9:36                                             ` Lorenzo Pieralisi
2014-10-22 15:59                         ` Lorenzo Pieralisi
2014-10-22 16:49                           ` Bjorn Helgaas
2014-10-22 20:52                           ` Arnd Bergmann
2014-10-23  9:13                             ` Liviu Dudau
2014-10-23 11:27                               ` Lorenzo Pieralisi
2014-10-23 16:52                                 ` Jason Gunthorpe
2014-10-27 16:10                                   ` Lorenzo Pieralisi
2014-10-23 13:33                               ` Arnd Bergmann
2014-10-24 10:04                                 ` Liviu Dudau
2014-11-05 23:40                                 ` Bjorn Helgaas
2014-11-06  0:06                                   ` Arnd Bergmann
2014-12-29 19:32                                 ` Suravee Suthikulpanit
2015-01-02 11:55                                   ` Lorenzo Pieralisi
2015-01-02 18:18                                     ` Suravee Suthikulanit
2015-01-02 21:09                                       ` Arnd Bergmann
2015-01-05 14:48                                         ` Lorenzo Pieralisi
2014-11-05 23:39                             ` Bjorn Helgaas
2014-11-06  0:05                               ` Arnd Bergmann
2014-11-06  9:52                                 ` Lorenzo Pieralisi [this message]
2014-09-29 19:19   ` Sunil Kovvuri
2014-09-28 20:53 ` [RFC 3/4] arm64: Do not call enable PCI resources when specify PCI_PROBE_ONLY suravee.suthikulpanit
2014-09-29 14:38   ` Arnd Bergmann
2014-09-29 18:17   ` Bjorn Helgaas
2015-06-23 22:34     ` Benjamin Herrenschmidt
2015-06-23 23:05       ` Russell King - ARM Linux
2015-06-23 22:32   ` Benjamin Herrenschmidt
2014-09-28 20:53 ` [RFC 4/4] irqchip: gicv2m: Add supports for ARM GICv2m MSI(-X) suravee.suthikulpanit
2014-09-28 21:35   ` Suravee Suthikulpanit
2014-09-29 14:23     ` Thomas Gleixner
2014-09-29 14:42   ` Arnd Bergmann

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