From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Olaf Hering <olaf@aepfle.de>, Alan <alan@lxorguk.ukuu.org.uk>,
linuxppc-dev@ozlabs.org, greg@kroah.com,
linux-ide@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz
Subject: Re: What is the correct way to indicate an unassigned PCI resource ?
Date: Wed, 06 Dec 2006 00:26:22 +0300 [thread overview]
Message-ID: <4575E3FE.7000906@ru.mvista.com> (raw)
In-Reply-To: <1165349941.5469.1.camel@localhost.localdomain>
Hello.
Benjamin Herrenschmidt wrote:
>>On Tue, Dec 05, Benjamin Herrenschmidt wrote:
>>>Olaf, can you give me a dump of /proc/ioports ? What is sitting at 0 on
>>>that PCI bus ?
>>with IDE=y
>>==> /proc/ioports <==
>>00000000-0000001f : dma1
> So it's indeed colliding with the cruft above.
> I reckon it's a bug in the firmware of this machine.
> Add to pseries/pci.c a quirk for that chipset (don't forget to test for
> machine_is(pseries) in the quirk as they get called for all platforms in
> a combo kernel. The quirk shall check if resource 6 has a 0 base and
> clear the size as Alan suggested (possibly setting the UNSET flag as
> well).
Erm, I suspect it's either one or another -- you probably need to keep the
size intact for resource marked IORESOURCE_UNSET. At least that's what the
other code does...
> Ben.
WBR, Sergei
WARNING: multiple messages have this Message-ID (diff)
From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: 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: Wed, 06 Dec 2006 00:26:22 +0300 [thread overview]
Message-ID: <4575E3FE.7000906@ru.mvista.com> (raw)
In-Reply-To: <1165349941.5469.1.camel@localhost.localdomain>
Hello.
Benjamin Herrenschmidt wrote:
>>On Tue, Dec 05, Benjamin Herrenschmidt wrote:
>>>Olaf, can you give me a dump of /proc/ioports ? What is sitting at 0 on
>>>that PCI bus ?
>>with IDE=y
>>==> /proc/ioports <==
>>00000000-0000001f : dma1
> So it's indeed colliding with the cruft above.
> I reckon it's a bug in the firmware of this machine.
> Add to pseries/pci.c a quirk for that chipset (don't forget to test for
> machine_is(pseries) in the quirk as they get called for all platforms in
> a combo kernel. The quirk shall check if resource 6 has a 0 base and
> clear the size as Alan suggested (possibly setting the UNSET flag as
> well).
Erm, I suspect it's either one or another -- you probably need to keep the
size intact for resource marked IORESOURCE_UNSET. At least that's what the
other code does...
> Ben.
WBR, Sergei
next prev parent reply other threads:[~2006-12-05 21:24 UTC|newest]
Thread overview: 90+ 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 16:33 ` Sergei Shtylyov
2006-12-26 20:53 ` [U-Boot-Users] " 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
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 [this message]
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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