[LinuxBIOS] [patch] Fix M57SLI interrupt routing

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Mon Nov 5 23:38:28 CET 2007

On 05.11.2007 12:04, Torsten Duwe wrote:
> This patch makes both PCI slots and the primary PCIe work for me, sort of.
> The only downsides are that under heavy usage I lose an interrupt once in a 
> while, but this might be due to irqpoll.
> The other issue is that the graphics card still only initialises under X, and 
> still very slowly.
> Looking at mptable.c I get the impression it was copied almost verbatim from 
> another board and not adopted to the M57SLI. Yinghai, where did you get the 
> routing info from?
> Another scary thing is that the wiring seems to differ when the board is set 
> up via LinuxBIOS; legacy BIOS puts the PCIe 16x int A on the same line with 
> bus 1 device 8, while LinuxBIOS does that with bus 1 device 7 ! Can anyone 
> with a datasheet shed some light on this?
> Anyway, here's the patch that improves things quite a lot on my machine.
> please SVN-quote only below this line :-)
> ------------------------------------------------------------------------------------------
> Fix the M57SLI routing table, as apparently  set up from LinuxBIOS on that 
> board. Shift PCIe pin numbers downwards, and PCI int pins upwards. This puts 
> both PCI slots' int A and PCIe 16x int A into the right position.
> Signed-off-by: Torsten Duwe <duwe at lst.de>

Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>

Thanks, Torsten. Checked in in r2946.

What issues remain for the board now that this has been checked in? Do
you still need irqpoll?


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