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# Date Author Comment
903ce9fe 04/27/2013 02:13 pm Artyom Tarasenko

sparc64: use direct interrupt mapping for PCI devices

Every PCI Slot in PBM has 4 directly mapped IRQ lines.
Use the IRQ routing schema 0bssnn (Bus, Slot, interrupt Number)
described in Section 19.3.3 of UltraSPARC™-IIi User's Manual.

Please note that this patch requires the OpenBIOS counterpart patch....
9625036d 04/27/2013 01:35 pm Artyom Tarasenko

sparc64: fix loosing interrupts

- clear interrupts only on writing to the interrupt clear registers
- don't overwrite a currently active interrupt request
- use the correct addresses for the interrupt clear registers
(section 19.3.3.3 of the UltraSPARC™-IIi User’s Manual)...
852e82f3 04/27/2013 01:35 pm Artyom Tarasenko

sparc64: allow 64 IRQ lines

According to UltraSPARC™-IIi User’s Manual, PBM has 64 IRQ lines.

Signed-off-by: Artyom Tarasenko <>
Signed-off-by: Blue Swirl <>
c0907c9e 04/08/2013 07:13 pm Paolo Bonzini

hw: move PCI bridges to hw/pci-* or hw/ARCH

Signed-off-by: Paolo Bonzini <>