From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>,
Olaf Hering <olaf@aepfle.de>,
linuxppc-dev@ozlabs.org, greg@kroah.com,
linux-ide@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz,
Alan <alan@lxorguk.ukuu.org.uk>
Subject: Re: What is the correct way to indicate an unassigned PCI resource ?
Date: Tue, 05 Dec 2006 15:43:12 +1100 [thread overview]
Message-ID: <1165293792.29784.42.camel@localhost.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.60.0612042146040.6042@poirot.grange>
On Mon, 2006-12-04 at 21:53 +0100, Guennadi Liakhovetski wrote:
> On Mon, 4 Dec 2006, Sergei Shtylyov wrote:
>
> > >>> When Linus remaps IRQ0 on x86, I'll follow that code as a testament. Until
> > >>>this happens, I consider is just an opinion. Forcing every arch but x86 to
> > >>>remap IRQ0 is an example of the double standards.
>
> Can I have a link to that specific answer from Linus, please? Somehow I
> missed it.
That debate is pointless. arch/powerpc now always remaps and 0 is always
illegal as a logical IRQ number, while it's perfectly legal as a HW
number on any PIC, so there is no more problem. Other archs might
probably want to do a similar remapping anyway as it makes loads of
things easier when you have multiple PICs and/or dynamically assigned
numbers.
Ben.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Olaf Hering <olaf@aepfle.de>,
linux-ide@vger.kernel.org, greg@kroah.com,
linuxppc-dev@ozlabs.org, linux-pci@atrey.karlin.mff.cuni.cz,
Alan <alan@lxorguk.ukuu.org.uk>
Subject: Re: What is the correct way to indicate an unassigned PCI resource ?
Date: Tue, 05 Dec 2006 15:43:12 +1100 [thread overview]
Message-ID: <1165293792.29784.42.camel@localhost.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.60.0612042146040.6042@poirot.grange>
On Mon, 2006-12-04 at 21:53 +0100, Guennadi Liakhovetski wrote:
> On Mon, 4 Dec 2006, Sergei Shtylyov wrote:
>
> > >>> When Linus remaps IRQ0 on x86, I'll follow that code as a testament. Until
> > >>>this happens, I consider is just an opinion. Forcing every arch but x86 to
> > >>>remap IRQ0 is an example of the double standards.
>
> Can I have a link to that specific answer from Linus, please? Somehow I
> missed it.
That debate is pointless. arch/powerpc now always remaps and 0 is always
illegal as a logical IRQ number, while it's perfectly legal as a HW
number on any PIC, so there is no more problem. Other archs might
probably want to do a similar remapping anyway as it makes loads of
things easier when you have multiple PICs and/or dynamically assigned
numbers.
Ben.
next prev parent reply other threads:[~2006-12-05 4:43 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-30 16:52 pata_sl82c105 can not reserve IO region Olaf Hering
2006-11-30 17:10 ` Alan
2006-11-30 18:47 ` Olaf Hering
2006-12-01 18:34 ` Olaf Hering
2006-12-01 18:58 ` Alan
2006-12-01 19:05 ` Sergei Shtylyov
2006-12-01 19:05 ` Sergei Shtylyov
2006-12-01 21:53 ` Benjamin Herrenschmidt
2006-12-01 21:53 ` Benjamin Herrenschmidt
2006-12-01 22:15 ` Alan
2006-12-01 22:15 ` Alan
2006-12-01 22:19 ` Benjamin Herrenschmidt
2006-12-01 22:19 ` Benjamin Herrenschmidt
2006-12-02 14:36 ` U-Boot allocating PCI I/O space from 0 (Was: pata_sl82c105 can not reserve IO region) Sergei Shtylyov
2006-12-02 14:36 ` [U-Boot-Users] " Sergei Shtylyov
2006-12-02 16:33 ` Sergei Shtylyov
2006-12-02 16:33 ` [U-Boot-Users] " Sergei Shtylyov
2006-12-26 20:53 ` Sergei Shtylyov
2006-12-26 20:53 ` Sergei Shtylyov
2006-12-03 23:39 ` pata_sl82c105 can not reserve IO region Alan
2006-12-03 23:39 ` Alan
2006-12-03 17:12 ` Olaf Hering
2006-12-03 22:24 ` Olaf Hering
2006-12-03 23:23 ` Alan
2006-12-04 0:30 ` Olaf Hering
2006-12-04 9:21 ` Olaf Hering
2006-12-03 23:07 ` Alan
2006-12-04 12:38 ` [PATCH] mark PCI resource with start 0 as unassigned Olaf Hering
2006-12-04 12:44 ` Segher Boessenkool
2006-12-04 12:50 ` Sergei Shtylyov
2006-12-04 12:50 ` Sergei Shtylyov
2006-12-04 12:54 ` Segher Boessenkool
2006-12-04 12:54 ` Segher Boessenkool
2006-12-04 13:08 ` Sergei Shtylyov
2006-12-04 13:08 ` Sergei Shtylyov
2006-12-04 13:21 ` Alan
2006-12-04 13:25 ` Segher Boessenkool
2006-12-04 13:25 ` Segher Boessenkool
2006-12-04 14:15 ` Alan
2007-08-01 14:22 ` Sergei Shtylyov
2007-08-01 14:22 ` Sergei Shtylyov
2007-08-01 15:51 ` Alan Cox
2007-08-01 15:51 ` Alan Cox
2007-08-06 18:04 ` Segher Boessenkool
2007-08-06 18:04 ` Segher Boessenkool
2007-08-06 19:52 ` Alan Cox
2007-08-06 19:52 ` Alan Cox
2007-08-06 22:14 ` Benjamin Herrenschmidt
2007-08-06 22:14 ` Benjamin Herrenschmidt
2006-12-04 13:27 ` Sergei Shtylyov
2006-12-04 13:27 ` Sergei Shtylyov
2006-12-04 14:22 ` What is the correct way to indicate an unassigned PCI resource ? Alan
2006-12-04 14:34 ` Sergei Shtylyov
2006-12-04 14:34 ` Sergei Shtylyov
2006-12-04 14:44 ` Alan
2006-12-04 15:40 ` Sergei Shtylyov
2006-12-04 15:40 ` Sergei Shtylyov
2006-12-04 15:55 ` Sergei Shtylyov
2006-12-04 15:55 ` Sergei Shtylyov
2006-12-04 20:53 ` Guennadi Liakhovetski
2006-12-04 20:53 ` Guennadi Liakhovetski
2006-12-05 4:43 ` Benjamin Herrenschmidt [this message]
2006-12-05 4:43 ` Benjamin Herrenschmidt
2006-12-05 4:41 ` Benjamin Herrenschmidt
2006-12-05 4:41 ` Benjamin Herrenschmidt
2006-12-05 8:15 ` Olaf Hering
2006-12-05 8:15 ` Olaf Hering
2006-12-05 20:19 ` Benjamin Herrenschmidt
2006-12-05 20:19 ` Benjamin Herrenschmidt
2006-12-05 21:26 ` Sergei Shtylyov
2006-12-05 21:26 ` Sergei Shtylyov
2007-01-04 17:49 ` Olaf Hering
2007-01-04 21:30 ` Benjamin Herrenschmidt
2007-01-05 10:26 ` Olaf Hering
2007-01-05 10:26 ` Olaf Hering
2007-01-05 12:05 ` Benjamin Herrenschmidt
2007-01-05 12:05 ` Benjamin Herrenschmidt
2006-12-05 10:51 ` Gabriel Paubert
2006-12-05 10:51 ` Gabriel Paubert
2006-12-05 12:38 ` Sergei Shtylyov
2006-12-05 12:38 ` Sergei Shtylyov
2006-12-05 17:37 ` Grant Grundler
2006-12-05 17:37 ` Grant Grundler
2006-12-05 19:22 ` Sergei Shtylyov
2006-12-05 19:22 ` Sergei Shtylyov
2006-12-04 12:56 ` [PATCH] mark PCI resource with start 0 as unassigned Olaf Hering
2006-12-04 13:05 ` Segher Boessenkool
2006-12-04 12:47 ` Sergei Shtylyov
2006-12-04 12:40 ` [PATCH] add delay around sl82c105_reset_engine calls Olaf Hering
2006-12-04 13:02 ` Alan
2006-12-04 13:12 ` Olaf Hering
2007-01-04 6:42 ` Olaf Hering
2007-01-04 10:53 ` Alan
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