[OpenBIOS] [PATCH 0/2] Sparc64: virtio-block and interrupt support

[Tarl Neustaedter]

On 2012-May-13 03:08 , Artyom Tarasenko wrote:
> Yes, this is how it's wired in qemu too. But I meant the OBP level.
> What worries me is that this construction seems to be never used in
> sun4u OBP:
>
> $  grep interrupts linux/kernel/git/davem/prtconfs/* | grep -c 00000001
> 402
> $ grep interrupts linux/kernel/git/davem/prtconfs/* | grep -c 00000000
> 2
>
> And the both hits are sun4v:
>
> $  grep interrupts ~/openbios/linux/kernel/git/davem/prtconfs/* | grep 00000000
> linux/kernel/git/davem/prtconfs/t1000:            interrupts:  00000000
> linux/kernel/git/davem/prtconfs/t2000_1:            interrupts:  00000000
>
> Can it be, that 0 is (or used to be) some magic constant?

I'll check on monday and get back to you.