Re: [PATCH 1/1] ACPI: pci_irq, add PRT_ quirk for IBM Bartolo

From: Jiri Slaby
Date: Wed Jun 30 2010 - 05:21:01 EST

On 06/30/2010 01:23 AM, Robert Hancock wrote:
> What kind of slot is it, and what kind of device was being used,
> something designed for this machine or just some random card?

It's a netmos 9835 serial card with 2 ports. PCI, there is no PCIe in
the machine as far as I can see.

> Can they
> tell what IRQ the device is reportedly using in Windows and if it
> matches what Linux reports?

I can ask them. What I know is that with acpi=noirq (or with the quirk)
the IRQ number is 10, with acpi without the quirk, it's 11:

PCI: setting IRQ 2 as level-triggered
serial 0000:00:09.0: found PCI INT A -> IRQ 2
0000:00:09.0: ttyS4 at I/O 0x1898 (irq = 10) is a 16550A
0000:00:09.0: ttyS5 at I/O 0x1890 (irq = 10) is a 16550A

ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11
PCI: setting IRQ 11 as level-triggered
serial 0000:00:09.0: PCI INT A -> Link[LNKB] -> GSI 11 (level, low) ->
IRQ 11
0000:00:09.0: ttyS4 at I/O 0x1898 (irq = 11) is a 16550A
0000:00:09.0: ttyS5 at I/O 0x1890 (irq = 11) is a 16550A

I still no point in comparing this to Windows' setup. We can't find out
whether it is quirked or better (without some bug) handled there.

suse labs
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