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From: Stefan Assmann <sassmann@redhat.com>
To: Daniel Walker <dwalker@fifo99.com>
Cc: linux-kernel@vger.kernel.org, jcm@redhat.com,
	sdietrich@novell.com, linux-acpi@vger.kernel.org,
	andi@firstfloor.org, hpa@zytor.com, mingo@elte.hu,
	Olaf.Dabrunz@gmx.net, ktokunag@redhat.com, tglx@linutronix.de,
	lenb@kernel.org
Subject: Re: [RFC][PATCH 2/2] disable boot interrupts on Intel X58 and 55x0
Date: Sat, 05 Sep 2009 11:07:59 +0200	[thread overview]
Message-ID: <4AA22A6F.30003@redhat.com> (raw)
In-Reply-To: <1252084019.22928.39.camel@desktop>

On 04.09.2009 19:06, Daniel Walker wrote:
> On Fri, 2009-09-04 at 12:55 -0400, Stefan Assmann wrote:
>> + * Disable boot interrupts on Intel X58, 55x0 (Tylersburg).
>> + * See Intel document #321328-001, section 19.10.2.27.
>> + * (Disable PCI INTx Routing to ICH)
>> + */
>> +#define INTEL_X58_55x0_QPIPINTRC_OFFSET        0xe0
>> +#define INTEL_X58_55x0_QPIPINTRC_BIT   (1<<25)
>> +static void quirk_disable_intel_tylersburg_boot_interrupt(struct
>> pci_dev *dev)
>> +{
>> +       u32 pci_config_dword;
>> +
>> +       if (noioapicquirk)
>> +               return;
>> +
>> +       pci_read_config_dword(dev, INTEL_X58_55x0_QPIPINTRC_OFFSET,
>> &pci_config_dword);
>> +       pci_config_dword |= INTEL_X58_55x0_QPIPINTRC_BIT;
>> +       pci_write_config_dword(dev, INTEL_X58_55x0_QPIPINTRC_OFFSET,
>> pci_config_dword);
>> +
>> +       printk(KERN_INFO "disabled boot interrupt on device 0x%04x:0x%
>> 04x\n",
>> +               dev->vendor, dev->device);
>> +}
>> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_QPI_TBG15,  quirk_disable_intel_tylersburg_boot_interrupt);
>> +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,  PCI_DEVICE_ID_INTEL_QPI_TBG15,  quirk_disable_intel_tylersburg_boot_interrupt);
> 
> 
> These lines are wildly long .. Could you reduce these down to a max of
> 80 characters..

Hi Daniel,

you're right about the lines being to long, however if you take a peek
at drivers/pci/quirks.c you'll see that all the quirks are done this
way. :)

  Stefan
--
Stefan Assmann         | Red Hat GmbH
Software Engineer      | Otto-Hahn-Strasse 20, 85609 Dornach
                       | HR: Amtsgericht Muenchen HRB 153243
                       | GF: Brendan Lane, Charlie Peters,
sassmann at redhat.com |     Michael Cunningham, Charles Cachera

  reply	other threads:[~2009-09-05  9:09 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-04 16:55 [RFC][PATCH 0/2] boot interrupts on Intel X58 and 55x0 Stefan Assmann
2009-09-04 16:55 ` [RFC][PATCH 1/2] show Intel QuickPath Interconnect Routing and Protocol Layer Registers in PCI config space Stefan Assmann
2009-09-04 17:07   ` Yinghai Lu
2009-09-05  9:02     ` Stefan Assmann
2009-09-04 16:55 ` [RFC][PATCH 2/2] disable boot interrupts on Intel X58 and 55x0 Stefan Assmann
2009-09-04 17:06   ` Daniel Walker
2009-09-05  9:07     ` Stefan Assmann [this message]
2009-09-05 14:47       ` Daniel Walker
2009-09-05 16:18         ` Olaf Dabrunz
2009-09-05 17:07           ` Daniel Walker
2009-09-07  1:37             ` Henrique de Moraes Holschuh
2009-09-07  1:53               ` Daniel Walker
2009-09-07  1:33 ` [RFC][PATCH 0/2] " Henrique de Moraes Holschuh
2009-09-07  8:24   ` Stefan Assmann

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