From: Bjorn Helgaas <bhelgaas@google.com>
To: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: linux-pci <linux-pci@vger.kernel.org>,
Catalin Marinas <Catalin.Marinas@arm.com>,
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: Tue, 8 Jul 2014 12:41:50 -0600 [thread overview]
Message-ID: <CAErSpo75ovmGoeSHKJN0nckGDy-0gpn8kLPfHQ79CtcXxhPydw@mail.gmail.com> (raw)
In-Reply-To: <20140708104655.GC6501@e106497-lin.cambridge.arm.com>
On Tue, Jul 8, 2014 at 4:46 AM, Liviu Dudau <Liviu.Dudau@arm.com> wrote:
> On Tue, Jul 08, 2014 at 01:59:54AM +0100, Bjorn Helgaas wrote:
>> I wonder if it would help to make a weak pci_domain_nr() function that
>> returns "bridge->domain_nr". Then each arch could individually drop its
>> pci_domain_nr() definition as it was converted, e.g., something like this:
>>
>> - Convert every arch pci_domain_nr() from a #define to a non-inline
>> function
>> - Add bridge.domain_nr, initialized from pci_domain_nr()
>> - Add a weak generic pci_domain_nr() that returns bridge.domain_nr
>> - Add a way to create a host bridge in a specified domain, so we can
>> initialize bridge.domain_nr without using pci_domain_nr()
>> - Convert each arch to use the new creation mechanism and drop its
>> pci_domain_nr() implementation
>
> I will try to propose a patch implementing this.
I think this is more of an extra credit, cleanup sort of thing. I
don't think it advances your primary goal of (I think) getting arm64
PCI support in. So my advice is to not worry about unifying domain
handling until later.
Bjorn
WARNING: multiple messages have this Message-ID (diff)
From: bhelgaas@google.com (Bjorn Helgaas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v8 6/9] pci: Introduce a domain number for pci_host_bridge.
Date: Tue, 8 Jul 2014 12:41:50 -0600 [thread overview]
Message-ID: <CAErSpo75ovmGoeSHKJN0nckGDy-0gpn8kLPfHQ79CtcXxhPydw@mail.gmail.com> (raw)
In-Reply-To: <20140708104655.GC6501@e106497-lin.cambridge.arm.com>
On Tue, Jul 8, 2014 at 4:46 AM, Liviu Dudau <Liviu.Dudau@arm.com> wrote:
> On Tue, Jul 08, 2014 at 01:59:54AM +0100, Bjorn Helgaas wrote:
>> I wonder if it would help to make a weak pci_domain_nr() function that
>> returns "bridge->domain_nr". Then each arch could individually drop its
>> pci_domain_nr() definition as it was converted, e.g., something like this:
>>
>> - Convert every arch pci_domain_nr() from a #define to a non-inline
>> function
>> - Add bridge.domain_nr, initialized from pci_domain_nr()
>> - Add a weak generic pci_domain_nr() that returns bridge.domain_nr
>> - Add a way to create a host bridge in a specified domain, so we can
>> initialize bridge.domain_nr without using pci_domain_nr()
>> - Convert each arch to use the new creation mechanism and drop its
>> pci_domain_nr() implementation
>
> I will try to propose a patch implementing this.
I think this is more of an extra credit, cleanup sort of thing. I
don't think it advances your primary goal of (I think) getting arm64
PCI support in. So my advice is to not worry about unifying domain
handling until later.
Bjorn
next prev parent reply other threads:[~2014-07-08 18:42 UTC|newest]
Thread overview: 218+ 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 ` 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 ` Liviu Dudau
2014-07-01 18:43 ` Liviu Dudau
2014-07-01 18:43 ` [PATCH v8 2/9] pci: Export find_pci_host_bridge() function Liviu Dudau
2014-07-01 18:43 ` Liviu Dudau
2014-07-01 18:43 ` Liviu Dudau
2014-07-02 18:06 ` Tanmay Inamdar
2014-07-02 18:06 ` Tanmay Inamdar
2014-07-02 19:12 ` Arnd Bergmann
2014-07-02 19:12 ` Arnd Bergmann
2014-07-02 20:43 ` Tanmay Inamdar
2014-07-02 20:43 ` Tanmay Inamdar
2014-07-03 9:53 ` Liviu Dudau
2014-07-03 9:53 ` Liviu Dudau
2014-07-03 10:26 ` Arnd Bergmann
2014-07-03 10:26 ` Arnd Bergmann
2014-07-07 23:27 ` Bjorn Helgaas
2014-07-07 23:27 ` Bjorn Helgaas
2014-07-07 23:27 ` Bjorn Helgaas
2014-07-08 10:42 ` Liviu Dudau
2014-07-08 10:42 ` Liviu Dudau
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 18:43 ` Liviu Dudau
2014-07-01 18:43 ` Liviu Dudau
2014-07-01 19:36 ` Arnd Bergmann
2014-07-01 19:36 ` Arnd Bergmann
2014-07-01 20:45 ` Liviu Dudau
2014-07-01 20:45 ` Liviu Dudau
2014-07-02 12:30 ` Arnd Bergmann
2014-07-02 12:30 ` Arnd Bergmann
2014-07-02 14:23 ` Liviu Dudau
2014-07-02 14:23 ` Liviu Dudau
2014-07-02 14:23 ` Liviu Dudau
2014-07-02 14:23 ` Liviu Dudau
2014-07-02 14:58 ` Arnd Bergmann
2014-07-02 14:58 ` Arnd Bergmann
2014-07-02 14:58 ` Arnd Bergmann
2014-07-02 11:22 ` Will Deacon
2014-07-02 11:22 ` Will Deacon
2014-07-02 16:00 ` Liviu Dudau
2014-07-02 16:00 ` Liviu Dudau
2014-07-02 12:38 ` Arnd Bergmann
2014-07-02 12:38 ` Arnd Bergmann
2014-07-02 13:20 ` Liviu Dudau
2014-07-02 13:20 ` Liviu Dudau
2014-07-08 0:14 ` Bjorn Helgaas
2014-07-08 0:14 ` Bjorn Helgaas
2014-07-08 7:00 ` Arnd Bergmann
2014-07-08 7:00 ` Arnd Bergmann
2014-07-08 21:29 ` Bjorn Helgaas
2014-07-08 21:29 ` Bjorn Helgaas
2014-07-08 22:45 ` Liviu Dudau
2014-07-08 22:45 ` Liviu Dudau
2014-07-09 6:32 ` Arnd Bergmann
2014-07-09 6:32 ` Arnd Bergmann
2014-07-09 6:32 ` Arnd Bergmann
2014-07-09 9:13 ` Liviu Dudau
2014-07-09 9:13 ` Liviu Dudau
2014-07-09 6:20 ` Arnd Bergmann
2014-07-09 6:20 ` Arnd Bergmann
2014-07-09 9:14 ` Liviu Dudau
2014-07-09 9:14 ` Liviu Dudau
2014-07-09 15:21 ` Bjorn Helgaas
2014-07-09 15:21 ` Bjorn Helgaas
2014-07-08 10:40 ` Liviu Dudau
2014-07-08 10:40 ` Liviu Dudau
2014-07-08 14:14 ` Arnd Bergmann
2014-07-08 14:14 ` Arnd Bergmann
2014-07-09 8:59 ` Liviu Dudau
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
2014-07-01 18:43 ` Liviu Dudau
2014-07-01 18:43 ` Liviu Dudau
2014-07-05 19:25 ` Rob Herring
2014-07-05 19:25 ` Rob Herring
2014-07-05 19:25 ` Rob Herring
2014-07-05 20:46 ` Arnd Bergmann
2014-07-05 20:46 ` Arnd Bergmann
2014-07-07 11:11 ` Liviu Dudau
2014-07-07 11:11 ` Liviu Dudau
2014-07-07 11:11 ` Liviu Dudau
2014-07-07 21:22 ` Arnd Bergmann
2014-07-07 21:22 ` Arnd Bergmann
2014-07-07 21:22 ` Arnd Bergmann
2014-07-08 10:03 ` Liviu Dudau
2014-07-08 10:03 ` Liviu Dudau
2014-07-08 10:03 ` Liviu Dudau
2014-07-09 8:31 ` Arnd Bergmann
2014-07-09 8:31 ` Arnd Bergmann
2014-07-09 8:31 ` Arnd Bergmann
2014-07-09 9:27 ` Liviu Dudau
2014-07-09 9:27 ` Liviu Dudau
2014-07-09 9:27 ` Liviu Dudau
2014-07-16 14:35 ` Rob Herring
2014-07-16 14:35 ` Rob Herring
2014-07-16 14:35 ` Rob Herring
2014-07-16 14:47 ` Liviu Dudau
2014-07-16 14:47 ` Liviu Dudau
2014-07-16 14:47 ` Liviu Dudau
2014-07-16 14:47 ` Arnd Bergmann
2014-07-16 14:47 ` Arnd Bergmann
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 ` Liviu Dudau
2014-07-01 18:43 ` Liviu Dudau
2014-07-01 18:43 ` [PATCH v8 6/9] pci: Introduce a domain number for pci_host_bridge Liviu Dudau
2014-07-01 18:43 ` Liviu Dudau
2014-07-01 18:43 ` Liviu Dudau
2014-07-08 0:59 ` Bjorn Helgaas
2014-07-08 0:59 ` Bjorn Helgaas
2014-07-08 10:46 ` Liviu Dudau
2014-07-08 10:46 ` Liviu Dudau
2014-07-08 18:41 ` Bjorn Helgaas [this message]
2014-07-08 18:41 ` Bjorn Helgaas
2014-07-08 22:48 ` Liviu Dudau
2014-07-08 22:48 ` Liviu Dudau
2014-07-09 15:10 ` Bjorn Helgaas
2014-07-09 15:10 ` Bjorn Helgaas
2014-07-10 9:47 ` Liviu Dudau
2014-07-10 9:47 ` Liviu Dudau
2014-07-10 22:36 ` Bjorn Helgaas
2014-07-10 22:36 ` Bjorn Helgaas
2014-07-11 9:30 ` Liviu Dudau
2014-07-11 9:30 ` Liviu Dudau
2014-07-11 9:30 ` Liviu Dudau
2014-07-11 14:11 ` Catalin Marinas
2014-07-11 14:11 ` Catalin Marinas
2014-07-11 15:08 ` Liviu Dudau
2014-07-11 15:08 ` Liviu Dudau
2014-07-11 16:09 ` Catalin Marinas
2014-07-11 16:09 ` Catalin Marinas
2014-07-11 17:02 ` Bjorn Helgaas
2014-07-11 17:02 ` Bjorn Helgaas
2014-07-11 18:02 ` Catalin Marinas
2014-07-11 18:02 ` Catalin Marinas
2014-07-14 16:39 ` Catalin Marinas
2014-07-14 16:39 ` Catalin Marinas
2014-07-14 16:39 ` Catalin Marinas
2014-07-22 3:15 ` Bjorn Helgaas
2014-07-22 3:15 ` Bjorn Helgaas
2014-07-25 15:42 ` Catalin Marinas
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
2014-07-01 18:43 ` Liviu Dudau
2014-07-01 18:43 ` Liviu Dudau
2014-07-02 11:17 ` Will Deacon
2014-07-02 11:17 ` Will Deacon
2014-07-05 19:04 ` Rob Herring
2014-07-05 19:04 ` Rob Herring
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
2014-07-01 18:43 ` Liviu Dudau
2014-07-01 18:43 ` Liviu Dudau
2014-07-01 20:50 ` [RESEND] " Liviu Dudau
2014-07-01 20:50 ` Liviu Dudau
2014-07-01 20:50 ` Liviu Dudau
2014-07-01 21:04 ` Liviu Dudau
2014-07-01 21:04 ` Liviu Dudau
2014-07-01 21:04 ` Liviu Dudau
2014-07-02 11:22 ` Will Deacon
2014-07-02 11:22 ` Will Deacon
2014-07-02 17:23 ` Liviu Dudau
2014-07-02 17:23 ` Liviu Dudau
2014-07-02 17:23 ` Liviu Dudau
2014-07-02 17:31 ` Will Deacon
2014-07-02 17:31 ` Will Deacon
2014-07-02 19:09 ` Arnd Bergmann
2014-07-02 19:09 ` Arnd Bergmann
2014-07-08 1:01 ` Bjorn Helgaas
2014-07-08 1:01 ` Bjorn Helgaas
2014-07-08 10:29 ` Liviu Dudau
2014-07-08 10:29 ` Liviu Dudau
2014-07-08 21:33 ` Bjorn Helgaas
2014-07-08 21:33 ` Bjorn Helgaas
2014-07-08 22:27 ` Liviu Dudau
2014-07-08 22:27 ` Liviu Dudau
2014-07-08 22:37 ` Bjorn Helgaas
2014-07-08 22:37 ` Bjorn Helgaas
2014-07-08 22:37 ` Bjorn Helgaas
2014-07-08 22:57 ` Liviu Dudau
2014-07-08 22:57 ` Liviu Dudau
2014-07-09 6:47 ` Arnd Bergmann
2014-07-09 6:47 ` Arnd Bergmann
2014-07-11 7:43 ` Jingoo Han
2014-07-11 7:43 ` Jingoo Han
2014-07-11 9:08 ` Liviu Dudau
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
2014-07-01 18:43 ` Liviu Dudau
2014-07-14 16:54 ` Catalin Marinas
2014-07-14 16:54 ` Catalin Marinas
2014-07-14 16:56 ` Liviu Dudau
2014-07-14 16:56 ` Liviu Dudau
2014-07-14 18:15 ` Arnd Bergmann
2014-07-14 18:15 ` Arnd Bergmann
2014-07-14 18:15 ` Arnd Bergmann
2014-07-15 0:14 ` Liviu Dudau
2014-07-15 0:14 ` Liviu Dudau
2014-07-15 0:14 ` Liviu Dudau
2014-07-15 9:09 ` Catalin Marinas
2014-07-15 9:09 ` Catalin Marinas
2014-07-15 9:09 ` Catalin Marinas
2014-07-06 15:23 ` [PATCH v8 0/9] Support for creating generic PCI host bridges from DT Rob Herring
2014-07-06 15:23 ` Rob Herring
2014-07-06 15:23 ` Rob Herring
2014-07-07 11:12 ` Liviu Dudau
2014-07-07 11:12 ` Liviu Dudau
2014-07-08 17:18 ` Liviu Dudau
2014-07-08 17:18 ` Liviu Dudau
2014-07-11 0:44 ` Tanmay Inamdar
2014-07-11 0:44 ` Tanmay Inamdar
2014-07-11 7:33 ` Jingoo Han
2014-07-11 7:33 ` Jingoo Han
2014-07-11 9:11 ` Liviu Dudau
2014-07-11 9:11 ` Liviu Dudau
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