From: Catalin Marinas <catalin.marinas@arm.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Liviu Dudau <Liviu.Dudau@arm.com>,
linux-pci <linux-pci@vger.kernel.org>,
Will Deacon <Will.Deacon@arm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Arnd Bergmann <arnd@arndb.de>,
linaro-kernel <linaro-kernel@lists.linaro.org>,
Tanmay Inamdar <tinamdar@apm.com>,
Grant Likely <grant.likely@secretlab.ca>,
Sinan Kaya <okaya@codeaurora.org>,
Jingoo Han <jg1.han@samsung.com>,
Kukjin Kim <kgene.kim@samsung.com>,
Suravee Suthikulanit <suravee.suthikulpanit@amd.com>,
LKML <linux-kernel@vger.kernel.org>,
Device Tree ML <devicetree@vger.kernel.org>,
LAKML <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v8 6/9] pci: Introduce a domain number for pci_host_bridge.
Date: Fri, 11 Jul 2014 15:11:16 +0100 [thread overview]
Message-ID: <20140711141115.GB16321@arm.com> (raw)
In-Reply-To: <CAErSpo5ZNCY31NztT0cLFbRVsBZqMsZ0LbTFNOTQCZUU3F7qJA@mail.gmail.com>
On Thu, Jul 10, 2014 at 11:36:10PM +0100, Bjorn Helgaas wrote:
> Most of the rest of the v7 discussion was about "Introduce a domain
> number for pci_host_bridge." I think we should add arm64 using the
> existing pci_scan_root_bus() and keep the domain number in the arm64
> sysdata structure like every other arch does. Isn't that feasible?
> We can worry about domain unification later.
I think that's what we were trying to avoid, adding an arm64-specific
pci_sys_data structure (and arm64-specific API). IIUC, avoiding this
would allow the host controller drivers to use the sysdata pointer for
their own private data structures.
Also since you can specify the domain number via DT (and in Liviu's
v8 patches read by of_create_pci_host_bridge), I think it would make
sense to have it stored in some generic data structures (e.g.
pci_host_bridge) rather than in an arm64 private sysdata.
(Liviu is thinking of an alternative API but maybe he could briefly
describe it here before posting a new series)
--
Catalin
next prev parent reply other threads:[~2014-07-11 14:11 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-01 18:43 [PATCH v8 0/9] Support for creating generic PCI host bridges from DT Liviu Dudau
2014-07-01 18:43 ` [PATCH v8 1/9] Fix ioport_map() for !CONFIG_GENERIC_IOMAP cases Liviu Dudau
2014-07-01 18:43 ` [PATCH v8 2/9] pci: Export find_pci_host_bridge() function Liviu Dudau
2014-07-02 18:06 ` Tanmay Inamdar
2014-07-02 19:12 ` Arnd Bergmann
2014-07-02 20:43 ` Tanmay Inamdar
2014-07-03 9:53 ` Liviu Dudau
2014-07-03 10:26 ` Arnd Bergmann
[not found] ` <1404240214-9804-3-git-send-email-Liviu.Dudau-5wv7dgnIgG8@public.gmane.org>
2014-07-07 23:27 ` Bjorn Helgaas
[not found] ` <20140707232749.GA22939-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2014-07-08 10:42 ` Liviu Dudau
2014-07-01 18:43 ` [PATCH v8 3/9] pci: Introduce pci_register_io_range() helper function Liviu Dudau
2014-07-01 19:36 ` Arnd Bergmann
2014-07-01 20:45 ` Liviu Dudau
2014-07-02 12:30 ` Arnd Bergmann
2014-07-02 14:23 ` Liviu Dudau
2014-07-02 14:58 ` Arnd Bergmann
2014-07-02 11:22 ` Will Deacon
2014-07-02 16:00 ` Liviu Dudau
2014-07-02 12:38 ` Arnd Bergmann
2014-07-02 13:20 ` Liviu Dudau
2014-07-08 0:14 ` Bjorn Helgaas
2014-07-08 7:00 ` Arnd Bergmann
2014-07-08 21:29 ` Bjorn Helgaas
2014-07-08 22:45 ` Liviu Dudau
[not found] ` <20140708224529.GB4980-2JSQmVVBSi7ZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org>
2014-07-09 6:32 ` Arnd Bergmann
2014-07-09 9:13 ` Liviu Dudau
2014-07-09 6:20 ` Arnd Bergmann
2014-07-09 9:14 ` Liviu Dudau
2014-07-09 15:21 ` Bjorn Helgaas
2014-07-08 10:40 ` Liviu Dudau
2014-07-08 14:14 ` Arnd Bergmann
2014-07-09 8:59 ` Liviu Dudau
2014-07-01 18:43 ` [PATCH v8 4/9] pci: OF: Fix the conversion of IO ranges into IO resources Liviu Dudau
[not found] ` <1404240214-9804-5-git-send-email-Liviu.Dudau-5wv7dgnIgG8@public.gmane.org>
2014-07-05 19:25 ` Rob Herring
2014-07-05 20:46 ` Arnd Bergmann
2014-07-07 11:11 ` Liviu Dudau
2014-07-07 21:22 ` Arnd Bergmann
2014-07-08 10:03 ` Liviu Dudau
2014-07-09 8:31 ` Arnd Bergmann
2014-07-09 9:27 ` Liviu Dudau
2014-07-16 14:35 ` Rob Herring
2014-07-16 14:47 ` Liviu Dudau
2014-07-16 14:47 ` Arnd Bergmann
2014-07-01 18:43 ` [PATCH v8 5/9] pci: Create pci_host_bridge before its associated bus in pci_create_root_bus Liviu Dudau
2014-07-01 18:43 ` [PATCH v8 6/9] pci: Introduce a domain number for pci_host_bridge Liviu Dudau
2014-07-08 0:59 ` Bjorn Helgaas
2014-07-08 10:46 ` Liviu Dudau
2014-07-08 18:41 ` Bjorn Helgaas
2014-07-08 22:48 ` Liviu Dudau
2014-07-09 15:10 ` Bjorn Helgaas
2014-07-10 9:47 ` Liviu Dudau
2014-07-10 22:36 ` Bjorn Helgaas
[not found] ` <CAErSpo5ZNCY31NztT0cLFbRVsBZqMsZ0LbTFNOTQCZUU3F7qJA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-11 9:30 ` Liviu Dudau
2014-07-11 14:11 ` Catalin Marinas [this message]
2014-07-11 15:08 ` Liviu Dudau
2014-07-11 16:09 ` Catalin Marinas
2014-07-11 17:02 ` Bjorn Helgaas
2014-07-11 18:02 ` Catalin Marinas
[not found] ` <20140711180151.GH16321-5wv7dgnIgG8@public.gmane.org>
2014-07-14 16:39 ` Catalin Marinas
2014-07-22 3:15 ` Bjorn Helgaas
2014-07-25 15:42 ` Catalin Marinas
2014-07-01 18:43 ` [PATCH v8 7/9] pci: of: Parse and map the IRQ when adding the PCI device Liviu Dudau
2014-07-02 11:17 ` Will Deacon
[not found] ` <20140702111748.GJ18731-5wv7dgnIgG8@public.gmane.org>
2014-07-05 19:04 ` Rob Herring
2014-07-01 18:43 ` [PATCH v8 8/9] pci: Add support for creating a generic host_bridge from device tree Liviu Dudau
[not found] ` <1404240214-9804-9-git-send-email-Liviu.Dudau-5wv7dgnIgG8@public.gmane.org>
2014-07-01 20:50 ` [RESEND] " Liviu Dudau
[not found] ` <20140701205050.GB19569-hOhETlTuV5niMG9XS5x8Mg@public.gmane.org>
2014-07-01 21:04 ` Liviu Dudau
2014-07-02 11:22 ` Will Deacon
[not found] ` <20140702112230.GL18731-5wv7dgnIgG8@public.gmane.org>
2014-07-02 17:23 ` Liviu Dudau
2014-07-02 17:31 ` Will Deacon
2014-07-02 19:09 ` Arnd Bergmann
2014-07-08 1:01 ` Bjorn Helgaas
2014-07-08 10:29 ` Liviu Dudau
2014-07-08 21:33 ` Bjorn Helgaas
2014-07-08 22:27 ` Liviu Dudau
[not found] ` <20140708222738.GA4980-2JSQmVVBSi7ZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org>
2014-07-08 22:37 ` Bjorn Helgaas
2014-07-08 22:57 ` Liviu Dudau
2014-07-09 6:47 ` Arnd Bergmann
2014-07-11 7:43 ` Jingoo Han
2014-07-11 9:08 ` Liviu Dudau
2014-07-01 18:43 ` [PATCH v8 9/9] pci: Remap I/O bus resources into CPU space with pci_remap_iospace() Liviu Dudau
2014-07-14 16:54 ` Catalin Marinas
2014-07-14 16:56 ` Liviu Dudau
2014-07-14 18:15 ` Arnd Bergmann
2014-07-15 0:14 ` Liviu Dudau
2014-07-15 9:09 ` Catalin Marinas
[not found] ` <1404240214-9804-1-git-send-email-Liviu.Dudau-5wv7dgnIgG8@public.gmane.org>
2014-07-06 15:23 ` [PATCH v8 0/9] Support for creating generic PCI host bridges from DT Rob Herring
2014-07-07 11:12 ` Liviu Dudau
2014-07-08 17:18 ` Liviu Dudau
2014-07-11 0:44 ` Tanmay Inamdar
2014-07-11 7:33 ` Jingoo Han
2014-07-11 9:11 ` Liviu Dudau
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