From: Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org>
To: "Li,
Feng (GE Healthcare)"
<Feng.Li-sCFLEkgZW7GbXiaaNHstOg@public.gmane.org>
Cc: ACPI List <acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Re: Could not deliver interrupts to the PCI board
Date: Mon, 07 Mar 2005 10:12:17 -0700 [thread overview]
Message-ID: <1110215537.21176.18.camel@eeyore> (raw)
In-Reply-To: <D02325A0F0177A468FD385A98178C53E0C3DF60A-5f9O7Fn4wvickVo8Y7U6IZteJpo0ey06@public.gmane.org>
On Mon, 2005-03-07 at 10:50 +0800, Li, Feng (GE Healthcare) wrote:
> I am trying to port our old pci drivers from Linux 2.4 kernel to Linux 2.6 kernel.
> Now i am working in Linux 2.6.11. I found a strange problem , after i installed the new driver(based on 2.6.11 kernel)
> into kernel, our pci device is recognized as IO-APIC-edge, and no interrupts can be catched by our driver.( The PCI device shuold be a
> IO-APIC-level type)
Make sure that your driver calls pci_enable_device() before
looking at dev->irq. We now use that hook to do interrupt
routing (enable link devices, set to level triggered mode,
etc).
> So we disabled the ACPI service and restart the computer again, then the pci device can be recognized as
> IO-APIC-level, the driver works well! I think,there are maybe some changes in 2.6.11 for ACPI sleep
> and hibernate that essentially puts ACPI in control of interrupts for many devices.Should i need to add ACPI
> declaration data to the driver ?
You should not need to add any ACPI smarts to your driver if
it does the pci_enable_device() correctly.
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prev parent reply other threads:[~2005-03-07 17:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-07 2:50 Could not deliver interrupts to the PCI board Li, Feng (GE Healthcare)
[not found] ` <D02325A0F0177A468FD385A98178C53E0C3DF60A-5f9O7Fn4wvickVo8Y7U6IZteJpo0ey06@public.gmane.org>
2005-03-07 17:12 ` Bjorn Helgaas [this message]
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