From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Liviu Dudau <Liviu.Dudau@arm.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
linaro-kernel <linaro-kernel@lists.linaro.org>,
linux-pci <linux-pci@vger.kernel.org>,
Will Deacon <Will.Deacon@arm.com>,
LKML <linux-kernel@vger.kernel.org>,
Grant Likely <grant.likely@secretlab.ca>,
Tanmay Inamdar <tinamdar@apm.com>,
Catalin Marinas <Catalin.Marinas@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>
Subject: Re: [PATCH v7 1/6] pci: Introduce pci_register_io_range() helper function.
Date: Mon, 07 Apr 2014 13:16:56 +0200 [thread overview]
Message-ID: <4164782.o9VMXFGud6@wuerfel> (raw)
In-Reply-To: <1396862008.3671.39.camel@pasglop>
On Monday 07 April 2014 19:13:28 Benjamin Herrenschmidt wrote:
> On Mon, 2014-04-07 at 09:35 +0100, Liviu Dudau wrote:
> > Thanks for the summary, is really useful as I was recently looking
> > into code in that
> > area. One thing I was trying to understand is why ppc needs _IO_BASE
> > at all rather
> > than using the generic PCI_IOBASE?
>
> Perhaps because our code predates it ? I haven't looked much into
> the semantics of PCI_IOBASE yet...
Yes, I'm pretty sure that's all there is to it. PCI_IOBASE just
happened to be an identifier we picked for asm-generic, but the
use on PowerPC is much older than the generic file.
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 1/6] pci: Introduce pci_register_io_range() helper function.
Date: Mon, 07 Apr 2014 13:16:56 +0200 [thread overview]
Message-ID: <4164782.o9VMXFGud6@wuerfel> (raw)
In-Reply-To: <1396862008.3671.39.camel@pasglop>
On Monday 07 April 2014 19:13:28 Benjamin Herrenschmidt wrote:
> On Mon, 2014-04-07 at 09:35 +0100, Liviu Dudau wrote:
> > Thanks for the summary, is really useful as I was recently looking
> > into code in that
> > area. One thing I was trying to understand is why ppc needs _IO_BASE
> > at all rather
> > than using the generic PCI_IOBASE?
>
> Perhaps because our code predates it ? I haven't looked much into
> the semantics of PCI_IOBASE yet...
Yes, I'm pretty sure that's all there is to it. PCI_IOBASE just
happened to be an identifier we picked for asm-generic, but the
use on PowerPC is much older than the generic file.
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
linaro-kernel <linaro-kernel@lists.linaro.org>,
Catalin Marinas <Catalin.Marinas@arm.com>,
linux-pci <linux-pci@vger.kernel.org>,
Liviu Dudau <Liviu.Dudau@arm.com>,
LKML <linux-kernel@vger.kernel.org>,
Will Deacon <Will.Deacon@arm.com>,
Grant Likely <grant.likely@secretlab.ca>,
Tanmay Inamdar <tinamdar@apm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Bjorn Helgaas <bhelgaas@google.com>
Subject: Re: [PATCH v7 1/6] pci: Introduce pci_register_io_range() helper function.
Date: Mon, 07 Apr 2014 13:16:56 +0200 [thread overview]
Message-ID: <4164782.o9VMXFGud6@wuerfel> (raw)
In-Reply-To: <1396862008.3671.39.camel@pasglop>
On Monday 07 April 2014 19:13:28 Benjamin Herrenschmidt wrote:
> On Mon, 2014-04-07 at 09:35 +0100, Liviu Dudau wrote:
> > Thanks for the summary, is really useful as I was recently looking
> > into code in that
> > area. One thing I was trying to understand is why ppc needs _IO_BASE
> > at all rather
> > than using the generic PCI_IOBASE?
>
> Perhaps because our code predates it ? I haven't looked much into
> the semantics of PCI_IOBASE yet...
Yes, I'm pretty sure that's all there is to it. PCI_IOBASE just
happened to be an identifier we picked for asm-generic, but the
use on PowerPC is much older than the generic file.
Arnd
next prev parent reply other threads:[~2014-04-07 11:17 UTC|newest]
Thread overview: 177+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-14 15:34 [PATCH v7 0/6] Support for creating generic host_bridge from device tree Liviu Dudau
2014-03-14 15:34 ` Liviu Dudau
2014-03-14 15:34 ` [PATCH v7 1/6] pci: Introduce pci_register_io_range() helper function Liviu Dudau
2014-03-14 15:34 ` Liviu Dudau
2014-04-05 0:19 ` Bjorn Helgaas
2014-04-05 0:19 ` Bjorn Helgaas
2014-04-05 0:19 ` Bjorn Helgaas
2014-04-06 9:49 ` Benjamin Herrenschmidt
2014-04-06 9:49 ` Benjamin Herrenschmidt
2014-04-06 9:49 ` Benjamin Herrenschmidt
2014-04-07 8:35 ` Liviu Dudau
2014-04-07 8:35 ` Liviu Dudau
2014-04-07 8:35 ` Liviu Dudau
2014-04-07 9:13 ` Benjamin Herrenschmidt
2014-04-07 9:13 ` Benjamin Herrenschmidt
2014-04-07 9:13 ` Benjamin Herrenschmidt
2014-04-07 11:16 ` Arnd Bergmann [this message]
2014-04-07 11:16 ` Arnd Bergmann
2014-04-07 11:16 ` Arnd Bergmann
2014-04-07 8:31 ` Liviu Dudau
2014-04-07 8:31 ` Liviu Dudau
2014-04-07 8:31 ` Liviu Dudau
2014-04-07 11:36 ` Arnd Bergmann
2014-04-07 11:36 ` Arnd Bergmann
2014-04-07 11:36 ` Arnd Bergmann
2014-04-07 13:42 ` Liviu Dudau
2014-04-07 13:42 ` Liviu Dudau
2014-04-07 13:42 ` Liviu Dudau
2014-04-07 17:58 ` Bjorn Helgaas
2014-04-07 17:58 ` Bjorn Helgaas
2014-04-07 17:58 ` Bjorn Helgaas
2014-04-08 9:50 ` Liviu Dudau
2014-04-08 9:50 ` Liviu Dudau
2014-04-08 10:22 ` Arnd Bergmann
2014-04-08 10:22 ` Arnd Bergmann
2014-04-08 16:54 ` Bjorn Helgaas
2014-04-08 16:54 ` Bjorn Helgaas
2014-06-26 8:59 ` Catalin Marinas
2014-06-26 8:59 ` Catalin Marinas
2014-06-26 9:30 ` Liviu Dudau
2014-06-26 9:30 ` Liviu Dudau
2014-06-26 14:11 ` Catalin Marinas
2014-06-26 14:11 ` Catalin Marinas
2014-06-26 14:11 ` Catalin Marinas
2014-06-26 14:14 ` Will Deacon
2014-06-26 14:14 ` Will Deacon
2014-06-27 0:44 ` Rob Herring
2014-06-27 0:44 ` Rob Herring
2014-06-27 11:03 ` Arnd Bergmann
2014-06-27 11:03 ` Arnd Bergmann
2014-06-27 12:49 ` Will Deacon
2014-06-27 12:49 ` Will Deacon
2014-06-27 13:16 ` Arnd Bergmann
2014-06-27 13:16 ` Arnd Bergmann
2014-06-27 13:38 ` Catalin Marinas
2014-06-27 13:38 ` Catalin Marinas
2014-06-27 13:38 ` Catalin Marinas
2014-06-27 16:15 ` Rob Herring
2014-06-27 16:15 ` Rob Herring
2014-06-30 10:17 ` Will Deacon
2014-06-30 10:17 ` Will Deacon
2014-06-27 14:14 ` Catalin Marinas
2014-06-27 14:14 ` Catalin Marinas
2014-06-27 14:14 ` Catalin Marinas
2014-06-27 14:55 ` Bjorn Helgaas
2014-06-27 14:55 ` Bjorn Helgaas
2014-06-27 15:18 ` Liviu Dudau
2014-06-27 15:18 ` Liviu Dudau
2014-04-07 23:21 ` Bjorn Helgaas
2014-04-07 23:21 ` Bjorn Helgaas
2014-04-08 7:12 ` Arnd Bergmann
2014-04-08 7:12 ` Arnd Bergmann
2014-04-08 9:49 ` Liviu Dudau
2014-04-08 9:49 ` Liviu Dudau
2014-04-08 10:11 ` Arnd Bergmann
2014-04-08 10:11 ` Arnd Bergmann
2014-04-08 16:48 ` Bjorn Helgaas
2014-04-08 16:48 ` Bjorn Helgaas
2014-03-14 15:34 ` [PATCH v7 2/6] pci: OF: Fix the conversion of IO ranges into IO resources Liviu Dudau
2014-03-14 15:34 ` Liviu Dudau
2014-03-14 17:05 ` Arnd Bergmann
2014-03-14 17:05 ` Arnd Bergmann
2014-03-14 17:05 ` Arnd Bergmann
2014-03-14 17:19 ` Liviu Dudau
2014-03-14 17:19 ` Liviu Dudau
2014-03-14 17:19 ` Liviu Dudau
2014-03-14 18:46 ` Arnd Bergmann
2014-03-14 18:46 ` Arnd Bergmann
2014-03-14 19:00 ` Liviu Dudau
2014-03-14 19:00 ` Liviu Dudau
2014-03-14 19:16 ` Arnd Bergmann
2014-03-14 19:16 ` Arnd Bergmann
2014-03-14 19:16 ` Arnd Bergmann
2014-03-17 13:41 ` Liviu Dudau
2014-03-17 13:41 ` Liviu Dudau
2014-03-14 15:34 ` [PATCH v7 3/6] pci: Create pci_host_bridge before its associated bus in pci_create_root_bus Liviu Dudau
2014-03-14 15:34 ` Liviu Dudau
2014-03-14 15:34 ` [PATCH v7 4/6] pci: Introduce a domain number for pci_host_bridge Liviu Dudau
2014-03-14 15:34 ` Liviu Dudau
2014-03-14 15:34 ` Liviu Dudau
2014-04-05 0:00 ` Bjorn Helgaas
2014-04-05 0:00 ` Bjorn Helgaas
2014-04-07 8:46 ` Liviu Dudau
2014-04-07 8:46 ` Liviu Dudau
2014-04-07 9:14 ` Benjamin Herrenschmidt
2014-04-07 9:14 ` Benjamin Herrenschmidt
2014-04-07 9:14 ` Benjamin Herrenschmidt
2014-04-07 10:07 ` Liviu Dudau
2014-04-07 10:07 ` Liviu Dudau
2014-04-07 10:07 ` Liviu Dudau
2014-04-07 22:44 ` Bjorn Helgaas
2014-04-07 22:44 ` Bjorn Helgaas
2014-04-08 10:20 ` Liviu Dudau
2014-04-08 10:20 ` Liviu Dudau
2014-04-08 16:28 ` Bjorn Helgaas
2014-04-08 16:28 ` Bjorn Helgaas
2014-04-08 16:28 ` Bjorn Helgaas
2014-04-09 12:07 ` Liviu Dudau
2014-04-09 12:07 ` Liviu Dudau
2014-04-09 14:02 ` Bjorn Helgaas
2014-04-09 14:02 ` Bjorn Helgaas
2014-04-09 14:08 ` Arnd Bergmann
2014-04-09 14:08 ` Arnd Bergmann
2014-04-09 23:49 ` Benjamin Herrenschmidt
2014-04-09 23:49 ` Benjamin Herrenschmidt
2014-04-10 1:27 ` Liviu Dudau
2014-04-10 1:27 ` Liviu Dudau
2014-04-10 1:27 ` Liviu Dudau
2014-04-10 3:48 ` Bjorn Helgaas
2014-04-10 3:48 ` Bjorn Helgaas
2014-04-10 8:00 ` Arnd Bergmann
2014-04-10 8:00 ` Arnd Bergmann
2014-04-10 8:00 ` Arnd Bergmann
2014-04-10 13:50 ` Bjorn Helgaas
2014-04-10 13:50 ` Bjorn Helgaas
2014-04-10 14:07 ` Arnd Bergmann
2014-04-10 14:07 ` Arnd Bergmann
2014-04-10 14:07 ` Arnd Bergmann
2014-04-10 14:53 ` Liviu Dudau
2014-04-10 14:53 ` Liviu Dudau
2014-04-10 14:53 ` Liviu Dudau
2014-04-10 20:46 ` Arnd Bergmann
2014-04-10 20:46 ` Arnd Bergmann
2014-04-11 5:01 ` Benjamin Herrenschmidt
2014-04-11 5:01 ` Benjamin Herrenschmidt
2014-04-11 8:36 ` Arnd Bergmann
2014-04-11 8:36 ` Arnd Bergmann
2014-04-11 9:16 ` Benjamin Herrenschmidt
2014-04-11 9:16 ` Benjamin Herrenschmidt
2014-04-11 9:22 ` Liviu Dudau
2014-04-11 9:22 ` Liviu Dudau
2014-04-11 13:51 ` Arnd Bergmann
2014-04-11 13:51 ` Arnd Bergmann
2014-04-11 13:51 ` Arnd Bergmann
2014-07-01 16:37 ` Liviu Dudau
2014-07-01 16:37 ` Liviu Dudau
2014-07-04 14:57 ` Liviu Dudau
2014-07-04 14:57 ` Liviu Dudau
2014-07-08 1:11 ` Bjorn Helgaas
2014-07-08 1:11 ` Bjorn Helgaas
2014-07-08 10:21 ` Liviu Dudau
2014-07-08 10:21 ` Liviu Dudau
2014-03-14 15:34 ` [PATCH v7 5/6] pci: Export find_pci_host_bridge() function Liviu Dudau
2014-03-14 15:34 ` Liviu Dudau
2014-04-04 23:39 ` Bjorn Helgaas
2014-04-04 23:39 ` Bjorn Helgaas
2014-04-07 14:20 ` Liviu Dudau
2014-04-07 14:20 ` Liviu Dudau
2014-04-07 14:38 ` One Thousand Gnomes
2014-04-07 14:38 ` One Thousand Gnomes
2014-04-07 14:38 ` One Thousand Gnomes
2014-03-14 15:34 ` [PATCH v7 6/6] pci: Add support for creating a generic host_bridge from device tree Liviu Dudau
2014-03-14 15:34 ` Liviu Dudau
2014-04-08 12:57 ` Hanjun Guo
2014-04-08 12:57 ` Hanjun Guo
2014-04-08 13:09 ` Liviu Dudau
2014-04-08 13:09 ` Liviu Dudau
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