freebsd-dev/sys/alpha/isa
Andrew Gallatin 6e01adb67f Alter isa interrupt behaviour on alpha. Rather than send a non-specific
EOI after the ithread runs, send the EOI when we get the interrupt and
disable the source.  After the ithread is run, the source is renabled.
Also, add isa_handle_fast_intr() which handles fast interrupts by sending
an EOI after the handler is run.

This fixes the chronic missing interrupt problems under heavy NFS load
on my UP1000 and should result in greater stability for alphas which
route all irqs through an isa pic.

Discussed with: jhb, bde (sending non-specific EOIs early was bde's idea)
2000-12-01 22:28:04 +00:00
..
isa_dma.c remove breakage that snuck in with my last commit 2000-06-29 02:26:48 +00:00
isa.c Alter isa interrupt behaviour on alpha. Rather than send a non-specific 2000-12-01 22:28:04 +00:00
isavar.h Handle PCI devices that actually use an ISA IRQ for the cia and tsunami 2000-05-10 18:54:28 +00:00
mcclock_isa.c Use bus_space_handle_t instead of bus_space_tag_t to hold the result 2000-05-27 10:02:32 +00:00