- Add quirk handling for Sun Fire V1280. The firmware of these machines
provides no ino-bitmap properties so forge them using the default set
of controller interrupts and let schizo_setup_intr() take care of the
children, hoping for non-fancy routing.
- Enable DMA write parity error interrupts on Schizo with a working
implementation.
- Let schizo_pci_bus() only panic in case of fatal errors as the interrupt
triggered by the error the firmware of Sun Fire V890 as well as 280R
with version 7 Schizo caused may happen as late as using the HBA and not
only prior to touching the PCI bus (in the former case the actual error
still is fatal but we clear it before touching the PCI bus).
While at it count and export non-fatal error interrupts via sysctl(9).
- Remove unnecessary locking from schizo_ue().
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