AMD756VIPER PCI IRQ Routing Patch (Need Additional Tests)

From: Jhon H. Caicedo (jhcaiced@osso.org.co)
Date: Tue Jun 19 2001 - 13:30:29 EST

Hi,

I have been working on a small patch to add support for AMD756 PCI IRQ
Routing with linux-2.4.5

This has been tested with a Gigabyte 7IXE 7F board and several PCI cards,
including a SMC-Lucent PCI Cardbus Bridge which doesn't get an IRQ
assigned by the BIOS.

If anybody has a board based on this chipset I would appreciate further
testing and advise about the patch.

In this alpha version, I left two printk() lines to get information
about the IRQ settings.

You should get an output like the following:

[root@klingon ~]# dmesg | grep 756
PCI: Using IRQ router AMD756 VIPER [1022/740b] at 00:07.3
AMD756: dev 104c:ac1c, router pirq : 4 get irq : 0
AMD756: dev 104c:ac1c, router pirq : 4 get irq : 0
AMD756: dev 10ec:8029, router pirq : 3 get irq : 10
AMD756: dev 104c:ac1c, router pirq : 4 get irq : 0
AMD756: dev 104c:ac1c, router pirq : 4 SET irq : 5
AMD756: dev 104c:ac1c, router pirq : 4 get irq : 5
AMD756: dev 11fe:0005, router pirq : 1 get irq : 12

Thanks.

diff -u linux-2.4.5/arch/i386/kernel/pci-irq.c \
  linux/arch/i386/kernel/pci-irq.c > linux-2.4.5_amd756-pci-routing-alpha1.patch 

--
Jhon H. Caicedo O. <jhcaiced@osso.org.co>
Observatorio Sismológico del SurOccidente O.S.S.O
http://www.osso.org.co
Cali - Colombia
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This archive was generated by hypermail 2b29 : Sat Jun 23 2001 - 21:00:25 EST