Bill Holler wrote: > Changing the HPET interrupt to Level triggered added about > 2 micro seconds to the ISR compared with using Edge triggered. > The ISR must now verify an interrupt is pending and tell the > HPET its interrupt was serviced with a read and a write of HPET > registers. > > The apic code looks like it will not allow sharing of Edge > triggered I/O APIC interrupts? Perhaps we should keep > using an Edge triggered HPET interrupt instead of Level > triggered? > You can't share edge-triggered interrupts reliably, really.
Dana
