From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Will Deacon <will.deacon@arm.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
Liviu Dudau <Liviu.Dudau@arm.com>,
"mohit.kumar@st.com" <mohit.kumar@st.com>,
"bhelgaas@google.com" <bhelgaas@google.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 2/3] PCI: ARM: add support for virtual PCI host controller
Date: Mon, 10 Feb 2014 10:34:50 -0700 [thread overview]
Message-ID: <20140210173450.GA5554@obsidianresearch.com> (raw)
In-Reply-To: <201402092130.25615.arnd@arndb.de>
On Sun, Feb 09, 2014 at 09:30:25PM +0100, Arnd Bergmann wrote:
> > bash-4.2# cat /proc/iomem
> > 40000000-40ffffff : /pci
> > 41000400-410005ff : virtio-pci
> > 41000c00-41000dff : virtio-pci
> > 41001400-410015ff : virtio-pci
> > 41001c00-41001dff : virtio-pci
> > 80000000-93ffffff : System RAM
> > 80008000-8053df0b : Kernel code
> > 80570000-805c07fb : Kernel data
>
> You should normally see a parent resource for the PCI bus and the virtio-pci
> resources under that. For some reason, neither of the two appears to have
> been registered correctly.
I noticed this on mvebu as well..
3.13 w/ mvebu driver:
e0001000-e0001fff : /mbus/pex@e0000000/pcie@1,0/fpga@0/fpga_sysmon@1000
e0006000-e0006fff : /mbus/pex@e0000000/pcie@1,0/fpga@0/qdr2p@6000
3.10 w/ old kirkwood driver:
e0000000-e7ffffff : PCIe 0 MEM
e0000000-e001ffff : 0000:00:01.0
e0001000-e0001fff : /mbus/pex@e0000000/pcie@1,0/fpga@0/fpga_sysmon@1000
e0006000-e0006fff : /mbus/pex@e0000000/pcie@1,0/fpga@0/qdr2p@6000
The latter is obviously correct and matches x86. I'm not sure where
the new style host drivers are going wrong, even the resource that
should be added by the PCI core itself for the BAR is missing..
Jason
next prev parent reply other threads:[~2014-02-10 17:34 UTC|newest]
Thread overview: 43+ 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 ` [PATCH 1/3] ARM: bios32: use pci_enable_resource to enable PCI resources Will Deacon
2014-02-12 1:06 ` Bjorn Helgaas
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 19:13 ` Arnd Bergmann
2014-02-05 19:09 ` Will Deacon
2014-02-05 19:27 ` Jason Gunthorpe
2014-02-05 19:41 ` Peter Maydell
2014-02-05 20:26 ` Arnd Bergmann
2014-02-05 20:53 ` Jason Gunthorpe
2014-02-06 8:28 ` Arnd Bergmann
2014-02-06 20:31 ` Russell King - ARM Linux
2014-02-09 20:18 ` Arnd Bergmann
2014-02-09 20:34 ` Russell King - ARM Linux
2014-02-11 19:15 ` Arnd Bergmann
2014-02-07 11:46 ` Will Deacon
2014-02-07 17:54 ` Jason Gunthorpe
2014-02-12 18:10 ` Will Deacon
2014-02-12 18:19 ` Jason Gunthorpe
2014-02-12 18:21 ` Will Deacon
2014-02-09 20:30 ` Arnd Bergmann
2014-02-10 17:34 ` Jason Gunthorpe [this message]
2014-02-11 10:42 ` Arnd Bergmann
2014-02-12 19:43 ` Jason Gunthorpe
2014-02-12 20:07 ` Arnd Bergmann
2014-02-12 20:33 ` Bjorn Helgaas
2014-02-12 21:15 ` Thomas Petazzoni
2014-02-12 22:24 ` Jason Gunthorpe
2014-02-12 19:49 ` Will Deacon
2014-02-06 8:54 ` Anup Patel
2014-02-06 10:26 ` Arnd Bergmann
2014-02-06 10:52 ` Anup Patel
2014-02-06 10:54 ` Liviu Dudau
2014-02-06 11:00 ` Will Deacon
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
2014-04-03 22:07 ` [PATCH 0/3] ARM: PCI: implement virtual PCI host controller Bjorn Helgaas
2014-04-14 17:13 ` Will Deacon
2014-04-14 18:48 ` Arnd Bergmann
2014-04-15 14:47 ` Will Deacon
2014-04-15 15:26 ` Arnd Bergmann
2014-04-16 13:58 ` Will Deacon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140210173450.GA5554@obsidianresearch.com \
--to=jgunthorpe@obsidianresearch.com \
--cc=Liviu.Dudau@arm.com \
--cc=arnd@arndb.de \
--cc=bhelgaas@google.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-pci@vger.kernel.org \
--cc=mohit.kumar@st.com \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).