linux-kernel - [PATCH 1/7] add kernel cmdline option to disable pci-irq quirks

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Date:	Mon,  2 Jun 2008 14:45:01 +0200
From:	Olaf Dabrunz <od@...e.de>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Jon Masters <jonathan@...masters.org>,
	linux-kernel@...r.kernel.org, Olaf Dabrunz <od@...e.de>,
	Stefan Assmann <sassmann@...e.de>
Subject: [PATCH 1/7] add kernel cmdline option to disable pci-irq quirks

From: Olaf Dabrunz <od@...e.de>

Add a switch to disable all boot interrupt quirks, using the parameter
nobootirqquirk.

Signed-off-by: Olaf Dabrunz <od@...e.de>
Signed-off-by: Stefan Assmann <sassmann@...e.de>
---
 drivers/pci/quirks.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index dabb563..6245486 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1363,6 +1363,21 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	0x2609, quirk_intel_pcie_pm);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	0x260a, quirk_intel_pcie_pm);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	0x260b, quirk_intel_pcie_pm);
 
+
+#ifdef CONFIG_X86_IO_APIC
+int nobootirqquirk __read_mostly = 0;
+
+int nobootirqquirk_setup(char *str)
+{
+	nobootirqquirk = 1;
+	printk(KERN_INFO "Boot IRQ quirk handling disabled\n");
+
+	return 1;
+}
+__setup("nobootirqquirk", nobootirqquirk_setup);
+#endif /* CONFIG_X86_IO_APIC */
+
+
 /*
  * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
  * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
-- 
1.5.2.4

-- 
Olaf Dabrunz (od/odabrunz), SUSE Linux Products GmbH, Nürnberg

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