From: Bjorn Helgaas <bjorn.helgaas@hp.com>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: "Brown, Len" <len.brown@intel.com>, Andrew Morton <akpm@osdl.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: VIA PCI routing problem
Date: Thu, 28 Jul 2005 09:37:33 -0600 [thread overview]
Message-ID: <200507280937.33971.bjorn.helgaas@hp.com> (raw)
In-Reply-To: <42E8CB27.4010100@yahoo.com.au>
On Thursday 28 July 2005 6:10 am, Nick Piggin wrote:
> I have a VIA SMP system and somewhere between 2.6.12-rc3 and 2.6.12
> the USB mouse started moving around really slowly. Anyway, it turns
> out that the attached patch (against 2.6.13-rc3-git8) fixes the problem.
Can you try this:
Index: work/drivers/pci/quirks.c
===================================================================
--- work.orig/drivers/pci/quirks.c 2005-07-25 15:04:26.000000000 -0600
+++ work/drivers/pci/quirks.c 2005-07-28 09:26:09.000000000 -0600
@@ -503,7 +503,7 @@
new_irq = dev->irq & 0xf;
pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
- if (new_irq != irq) {
+ if (1 || new_irq != irq) {
printk(KERN_INFO "PCI: Via IRQ fixup for %s, from %d to %d\n",
pci_name(dev), irq, new_irq);
udelay(15); /* unknown if delay really needed */
If that doesn't help, remove it and see if this does:
Index: work/drivers/pci/quirks.c
===================================================================
--- work.orig/drivers/pci/quirks.c 2005-07-25 15:04:26.000000000 -0600
+++ work/drivers/pci/quirks.c 2005-07-28 09:27:23.000000000 -0600
@@ -510,7 +510,7 @@
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
}
}
-DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_irq);
+DECLARE_PCI_FIXUP_ENABLE(PCI_ANY_ID, PCI_ANY_ID, quirk_via_irq);
/*
* PIIX3 USB: We have to disable USB interrupts that are
Can you also include "lspci" output?
next prev parent reply other threads:[~2005-07-28 15:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-28 12:10 Nick Piggin
2005-07-28 15:37 ` Bjorn Helgaas [this message]
2005-07-28 22:28 ` Nick Piggin
2005-07-28 18:36 Brown, Len
2005-07-28 22:43 ` Nick Piggin
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