On Wed, 2018-11-14 at 22:07 +0000, Marc Zyngier wrote:
> On Wed, 14 Nov 2018 18:28:05 +0000,
> Trent Piepho <tpiepho@xxxxxxxxxx> wrote:
> >
> >
> > The new domain stuff does not appear to integrate into the existing irq
> > framework perfectly. My interrupt has changed from MSI #1 to MSI
> > #524288. Not the most user friendly number.
>
> It is not supposed to be user friendly. It is not even supposed to be
> interpreted by anyone. And if you print it in hex, you'll find that it
> *is* actually useful.
The GPCv2 values match those in the datasheet. This is very handy!
domain: :soc:aips-bus@30800000:pcie@33800000-3
hwirq: 0x80000
chip: PCI-MSI
flags: 0x20
IRQCHIP_ONESHOT_SAFE
parent:
domain: :soc:aips-bus@30800000:pcie@33800000
hwirq: 0x1
chip: DWPCI-MSI
flags: 0x0
It's not clear to me what these two domains are for. Perhaps if I had
multiple busses or multiple ports it would be. I'm assuming the offset
is based on 2048 MSI-Xs per function, 8 functions per device, and 32
devices per bus. So perhaps this means this is MSI 0 on bus 1 of the
controller.
