From: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
To: Will Deacon <will.deacon@arm.com>, Bjorn Helgaas <bhelgaas@google.com>
Cc: Jayachandran C <jchandra@broadcom.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Arnd Bergmann <arnd@arndb.de>,
Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>,
Liviu Dudau <Liviu.Dudau@arm.com>,
Ming Lei <ming.lei@canonical.com>
Subject: Re: [PATCH v4 1/3] PCI: generic: remove dependency on hw_pci
Date: Thu, 13 Aug 2015 20:16:30 +0700 [thread overview]
Message-ID: <55CC98AE.5010604@amd.com> (raw)
In-Reply-To: <20150805092318.GB6092@arm.com>
Hi Bjorn,
On 8/5/15 16:23, Will Deacon wrote:
> On Wed, Aug 05, 2015 at 12:49:56AM +0100, Bjorn Helgaas wrote:
>> >On Wed, Aug 05, 2015 at 02:23:38AM +0530, Jayachandran C wrote:
>>> > >The current code in pci-host-generic.c uses pci_common_init_dev()
>>> > >from arm architecture to do some part of the PCI setup, and this
>>> > >prevents it from being used with arm64 architecture.
>>> > >
>>> > >The part of pci_common_init_dev() that is really needed by
>>> > >pci-host-generic.c is very limited and can be done in the same
>>> > >file without using hw_pci API of ARM. The ARM platform requires
>>> > >a pci_sys_data as sysdata for the PCI bus, this can be handled by
>>> > >setting up gen_pci to have a pci_sys_data variable as the first
>>> > >element.
>>> > >
>>> > >Signed-off-by: Jayachandran C<jchandra@broadcom.com>
>>> > >Acked-by: Lorenzo Pieralisi<lorenzo.pieralisi@arm.com>
>>> > >Tested-by: Lorenzo Pieralisi<lorenzo.pieralisi@arm.com>
>>> > >Tested-by: Pavel Fedin<p.fedin@samsung.com>
>> >
>> >I applied all three of these to my pci/enumeration branch for v4.3.
>> >
>> >I made a few changes, the most important being to call
>> >pcie_bus_configure_settings() before pci_bus_add_devices(), because drivers
>> >may claim devices in pci_bus_add_devices(), and the PCI core shouldn't
>> >touch devices after drivers claim them.
>> >
>> >I dropped the acks and tested-by because of that change, but I'll happily
>> >add them back if Lorenzo and Pavel confirm. The patches are here if you
>> >want to review/test them:
>> >
>> >https://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/log/?h=pci/enumeration
>> >
>> >I'm sure the other patches on that branch will need some tweaks, too, so I
>> >don't have any problem with updating these.
I have also tested on AMD Seattle (w/ non-PROBE_ONLY mode).
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
next prev parent reply other threads:[~2015-08-13 13:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-04 20:53 [PATCH v4 1/3] PCI: generic: remove dependency on hw_pci Jayachandran C
2015-08-04 20:53 ` [PATCH v4 2/3] PCI: Add setup-irq.o when compiling for arm64 Jayachandran C
2015-08-04 20:53 ` [PATCH v4 3/3] PCI: generic: add arm64 support Jayachandran C
2015-08-04 23:49 ` [PATCH v4 1/3] PCI: generic: remove dependency on hw_pci Bjorn Helgaas
2015-08-05 9:23 ` Will Deacon
2015-08-05 9:25 ` Will Deacon
2015-08-05 11:51 ` Bjorn Helgaas
2015-08-13 13:16 ` Suravee Suthikulpanit [this message]
2015-08-12 7:11 ` Pavel Fedin
2015-08-12 9:04 ` Will Deacon
2015-08-14 13:44 ` Pavel Fedin
2015-08-14 14:46 ` Bjorn Helgaas
2015-08-14 15:24 ` Lorenzo Pieralisi
2015-08-12 9:15 ` Lorenzo Pieralisi
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