- Compute the number of CPU pipeline cycles per second using the
mc146818.
- Use the COMPARE interrupt for the hardclock interrupt.
- Collapse all interrupt priorities into a single priority, and use
the CPU interrupt inputs to determine the interrupt source (local
device, PCI device, ISA device, etc.)
This allows us to have interrupt sharing.
untested, since I have no P-4032 board, but it's no worse than
the current situation, which is "totally non-working P-4032
support in the ARC port, of all places".
thorpej