From mboxrd@z Thu Jan  1 00:00:00 1970
From: Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [PATCH v10 06/10] PCI: Introduce generic domain handling for PCI
 busses.
Date: Mon, 8 Sep 2014 15:03:21 +0100
Message-ID: <20140908140321.GF22717@arm.com>
References: <1410184472-17630-1-git-send-email-Liviu.Dudau@arm.com>
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To: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>, Arnd Bergmann <arnd@arndb.de>, Rob Herring <robh+dt@kernel.org>, Jason Gunthorpe <jgunthorpe@obsidianresearch.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Will Deacon <Will.Deacon@arm.com>, Russell King <linux@arm.linux.org.uk>, linux-pci <linux-pci@vger.kernel.org>, Linus Walleij <linus.walleij@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>, linux-arch <linux-arch@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>, Device Tree ML <devicetree@vger.kernel.org>, LAKML <linux-arm-kernel@lists.infradead.org>
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On Mon, Sep 08, 2014 at 02:54:28PM +0100, Liviu Dudau wrote:
> The handling of PCI domains (or PCI segments in ACPI speak) is
> usually a straightforward affair but its implementation is
> currently left to the architectural code, with pci_domain_nr(b)
> querying the value of the domain associated with bus b.
> 
> This patch introduces CONFIG_PCI_DOMAINS_GENERIC as an
> option that can be selected if an architecture want a
> simple implementation where the value of the domain
> associated with a bus is stored in struct pci_bus.
> 
> The architectures that select CONFIG_PCI_DOMAINS_GENERIC will
> then have to implement pci_bus_assign_domain_nr() as a way
> of setting the domain number associated with a root bus.
> All child busses except the root bus will inherit the domain_nr
> value from their parent.
> 
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Catalin Marinas <Catalin.Marinas@arm.com>
> [Renamed pci_set_domain_nr() to pci_bus_assign_domain_nr()]
> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>

I'm probably the author here, but the patch log doesn't say so (I don't
mind, just a remark).

-- 
Catalin