From mboxrd@z Thu Jan  1 00:00:00 1970
From: Liviu Dudau <Liviu.Dudau@arm.com>
Subject: Re: [PATCH v7 6/6] pci: Add support for creating a generic
 host_bridge from device tree
Date: Tue, 8 Apr 2014 14:09:20 +0100
Message-ID: <20140408130920.GY17163@e106497-lin.cambridge.arm.com>
References: <1394811272-1547-1-git-send-email-Liviu.Dudau@arm.com>
 <1394811272-1547-7-git-send-email-Liviu.Dudau@arm.com>
 <5343F252.2050708@linaro.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: QUOTED-PRINTABLE
Return-path: <linux-pci-owner@vger.kernel.org>
In-Reply-To: <5343F252.2050708@linaro.org>
Content-Disposition: inline
Sender: linux-pci-owner@vger.kernel.org
To: Hanjun Guo <hanjun.guo@linaro.org>
Cc: linux-pci <linux-pci@vger.kernel.org>, Bjorn Helgaas <bhelgaas@google.com>, Catalin Marinas <Catalin.Marinas@arm.com>, Will Deacon <Will.Deacon@arm.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, linaro-kernel <linaro-kernel@lists.linaro.org>, Arnd Bergmann <arnd@arndb.de>, Grant Likely <grant.likely@secretlab.ca>, "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>, LAKML <linux-arm-kernel@lists.infradead.org>, Tanmay Inamdar <tinamdar@apm.com>
List-Id: devicetree@vger.kernel.org

Hi Hanjun,

On Tue, Apr 08, 2014 at 01:57:54PM +0100, Hanjun Guo wrote:
> Hi Liviu,
>=20
> On 2014-3-14 23:34, Liviu Dudau wrote:
> > Several platforms use a rather generic version of parsing
> > the device tree to find the host bridge ranges. Move the common cod=
e
> > into the generic PCI code and use it to create a pci_host_bridge
> > structure that can be used by arch code.
> >=20
> > Based on early attempts by Andrew Murray to unify the code.
> > Used powerpc and microblaze PCI code as starting point.
> >=20
> > Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
> > Tested-by: Tanmay Inamdar <tinamdar@apm.com>
> > ---
> >  drivers/pci/host-bridge.c | 158 ++++++++++++++++++++++++++++++++++=
++
> >  include/linux/pci.h       |  13 +++
> >  2 files changed, 171 insertions(+)
> >=20
> > diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c
> > index 8708b652..7cda90b 100644
> > --- a/drivers/pci/host-bridge.c
> > +++ b/drivers/pci/host-bridge.c
> > @@ -6,9 +6,14 @@
> >  #include <linux/init.h>
> >  #include <linux/pci.h>
> >  #include <linux/module.h>
> > +#include <linux/of_address.h>
> > +#include <linux/of_pci.h>
> > +#include <linux/slab.h>
> > =20
> >  #include "pci.h"
> > =20
> > +static atomic_t domain_nr =3D ATOMIC_INIT(-1);
>=20
> domain_nr will only be used inside the #ifdef CONFIG_OF,
> and this will lead to compile warning which complains that
> 'domain_nr' defined but not used when CONFIG_OF=3Dn (for example
> on x86).
>=20
> How about moving the definition to --->
>=20
> > +
> >  static struct pci_bus *find_pci_root_bus(struct pci_bus *bus)
> >  {
> >  	while (bus->parent)
> > @@ -92,3 +97,156 @@ void pcibios_bus_to_resource(struct pci_bus *bu=
s, struct resource *res,
> >  	res->end =3D region->end + offset;
> >  }
> >  EXPORT_SYMBOL(pcibios_bus_to_resource);
> > +
> > +#ifdef CONFIG_OF
>=20
> here?

I've already moved the definition there in my refresh.

Thanks for reviewing the code,
Liviu

>=20
> Thanks
> Hanjun
>=20

--=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
| I would like to |
| fix the world,  |
| but they're not |
| giving me the   |
 \ source code!  /
  ---------------
    =C2=AF\_(=E3=83=84)_/=C2=AF