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From: Arnd Bergmann <arnd@arndb.de>
To: Anup Patel <anup@brainfault.org>
Cc: Will Deacon <will.deacon@arm.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	linux-pci@vger.kernel.org, Liviu.Dudau@arm.com,
	mohit.kumar@st.com, bhelgaas@google.com
Subject: Re: [PATCH 2/3] PCI: ARM: add support for virtual PCI host controller
Date: Thu, 06 Feb 2014 11:26:15 +0100	[thread overview]
Message-ID: <2629498.fOknbqpyEP@wuerfel> (raw)
In-Reply-To: <CAAhSdy0X56UcMrp0bsH0na=GBkND=jqZVqbHxKsBampr8YM3cA@mail.gmail.com>

On Thursday 06 February 2014 14:24:03 Anup Patel wrote:
> > diff --git a/Documentation/devicetree/bindings/pci/linux,pci-virt.txt b/Documentation/devicetree/bindings/pci/linux,pci-virt.txt
> > new file mode 100644
> > index 000000000000..54668a283498
> > +- compatible     : Must be "linux,pci-virt"
> > +
> > +- ranges         : As described in IEEE Std 1275-1994, but must provide
> > +                   at least a definition of the Configuration Space plus
> > +                   one or both of IO and Memory Space.
> > +
> > +- #address-cells : Must be 3
> > +
> > +- #size-cells    : Must be 2
> > +
> > +Configuration Space is assumed to be memory-mapped (as opposed to being
> 
> It would be great to have a flag to specify whether Configuration Space is over
> ioports or memory mapped.
> 

I haven't seen config space access through ioport for a long
time on non-x86. Do you have reason to believe that we will need
that?

	Arnd

WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/3] PCI: ARM: add support for virtual PCI host controller
Date: Thu, 06 Feb 2014 11:26:15 +0100	[thread overview]
Message-ID: <2629498.fOknbqpyEP@wuerfel> (raw)
In-Reply-To: <CAAhSdy0X56UcMrp0bsH0na=GBkND=jqZVqbHxKsBampr8YM3cA@mail.gmail.com>

On Thursday 06 February 2014 14:24:03 Anup Patel wrote:
> > diff --git a/Documentation/devicetree/bindings/pci/linux,pci-virt.txt b/Documentation/devicetree/bindings/pci/linux,pci-virt.txt
> > new file mode 100644
> > index 000000000000..54668a283498
> > +- compatible     : Must be "linux,pci-virt"
> > +
> > +- ranges         : As described in IEEE Std 1275-1994, but must provide
> > +                   at least a definition of the Configuration Space plus
> > +                   one or both of IO and Memory Space.
> > +
> > +- #address-cells : Must be 3
> > +
> > +- #size-cells    : Must be 2
> > +
> > +Configuration Space is assumed to be memory-mapped (as opposed to being
> 
> It would be great to have a flag to specify whether Configuration Space is over
> ioports or memory mapped.
> 

I haven't seen config space access through ioport for a long
time on non-x86. Do you have reason to believe that we will need
that?

	Arnd

  reply	other threads:[~2014-02-06 10:26 UTC|newest]

Thread overview: 86+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-04 16:53 [PATCH 0/3] ARM: PCI: implement virtual PCI host controller Will Deacon
2014-02-04 16:53 ` Will Deacon
2014-02-04 16:53 ` [PATCH 1/3] ARM: bios32: use pci_enable_resource to enable PCI resources Will Deacon
2014-02-04 16:53   ` Will Deacon
2014-02-12  1:06   ` Bjorn Helgaas
2014-02-12  1:06     ` Bjorn Helgaas
2014-02-12 16:18     ` Will Deacon
2014-02-12 16:18       ` Will Deacon
2014-02-04 16:53 ` [PATCH 2/3] PCI: ARM: add support for virtual PCI host controller Will Deacon
2014-02-04 16:53   ` Will Deacon
2014-02-04 19:13   ` Arnd Bergmann
2014-02-04 19:13     ` Arnd Bergmann
2014-02-05 19:09     ` Will Deacon
2014-02-05 19:09       ` Will Deacon
2014-02-05 19:27       ` Jason Gunthorpe
2014-02-05 19:27         ` Jason Gunthorpe
2014-02-05 19:41         ` Peter Maydell
2014-02-05 19:41           ` Peter Maydell
2014-02-05 20:26       ` Arnd Bergmann
2014-02-05 20:26         ` Arnd Bergmann
2014-02-05 20:53         ` Jason Gunthorpe
2014-02-05 20:53           ` Jason Gunthorpe
2014-02-06  8:28           ` Arnd Bergmann
2014-02-06  8:28             ` Arnd Bergmann
2014-02-06 20:31             ` Russell King - ARM Linux
2014-02-06 20:31               ` Russell King - ARM Linux
2014-02-09 20:18               ` Arnd Bergmann
2014-02-09 20:18                 ` Arnd Bergmann
2014-02-09 20:34                 ` Russell King - ARM Linux
2014-02-09 20:34                   ` Russell King - ARM Linux
2014-02-11 19:15                   ` Arnd Bergmann
2014-02-11 19:15                     ` Arnd Bergmann
2014-02-07 11:46         ` Will Deacon
2014-02-07 11:46           ` Will Deacon
2014-02-07 17:54           ` Jason Gunthorpe
2014-02-07 17:54             ` Jason Gunthorpe
2014-02-12 18:10             ` Will Deacon
2014-02-12 18:10               ` Will Deacon
2014-02-12 18:19               ` Jason Gunthorpe
2014-02-12 18:19                 ` Jason Gunthorpe
2014-02-12 18:21                 ` Will Deacon
2014-02-12 18:21                   ` Will Deacon
2014-02-09 20:30           ` Arnd Bergmann
2014-02-09 20:30             ` Arnd Bergmann
2014-02-10 17:34             ` Jason Gunthorpe
2014-02-10 17:34               ` Jason Gunthorpe
2014-02-11 10:42               ` Arnd Bergmann
2014-02-11 10:42                 ` Arnd Bergmann
2014-02-12 19:43                 ` Jason Gunthorpe
2014-02-12 19:43                   ` Jason Gunthorpe
2014-02-12 20:07                   ` Arnd Bergmann
2014-02-12 20:07                     ` Arnd Bergmann
2014-02-12 20:33                     ` Bjorn Helgaas
2014-02-12 20:33                       ` Bjorn Helgaas
2014-02-12 21:15                   ` Thomas Petazzoni
2014-02-12 21:15                     ` Thomas Petazzoni
2014-02-12 22:24                     ` Jason Gunthorpe
2014-02-12 22:24                       ` Jason Gunthorpe
2014-02-12 19:49                 ` Will Deacon
2014-02-12 19:49                   ` Will Deacon
2014-02-06  8:54   ` Anup Patel
2014-02-06  8:54     ` Anup Patel
2014-02-06 10:26     ` Arnd Bergmann [this message]
2014-02-06 10:26       ` Arnd Bergmann
2014-02-06 10:52       ` Anup Patel
2014-02-06 10:52         ` Anup Patel
2014-02-06 10:54     ` Liviu Dudau
2014-02-06 10:54       ` Liviu Dudau
2014-02-06 11:00       ` Will Deacon
2014-02-06 11:00         ` Will Deacon
2014-02-06 11:28         ` Arnd Bergmann
2014-02-06 11:28           ` Arnd Bergmann
2014-02-04 16:53 ` [PATCH 3/3] ARM: mach-virt: allow PCI support to be selected Will Deacon
2014-02-04 16:53   ` Will Deacon
2014-04-03 22:07 ` [PATCH 0/3] ARM: PCI: implement virtual PCI host controller Bjorn Helgaas
2014-04-03 22:07   ` Bjorn Helgaas
2014-04-14 17:13   ` Will Deacon
2014-04-14 17:13     ` Will Deacon
2014-04-14 18:48     ` Arnd Bergmann
2014-04-14 18:48       ` Arnd Bergmann
2014-04-15 14:47       ` Will Deacon
2014-04-15 14:47         ` Will Deacon
2014-04-15 15:26         ` Arnd Bergmann
2014-04-15 15:26           ` Arnd Bergmann
2014-04-16 13:58           ` Will Deacon
2014-04-16 13:58             ` Will Deacon

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