- Move manipulation of td_intr_nesting_level out of assembly interrupt

  vector stubs and into the C functions they call.
- Move disabling and EOIing of interrupt sources out of PIC driver entry
  points and into intr_execute_handlers().  Intr_execute_handlers() only
  disables a source for an interrupt if it is a stray interrupt or has
  threaded handlers.  Sources with fast handlers no longer disable (mask)
  the source while executing the handlers.
- Move the setting of clkintr_pending into intr_execute_handlers() and set
  the variable for any interrupt source with a vector of 0.  (Should only
  be true for IRQ 0.)  This fixes clkintr_pending in the NO_MIXED_MODE
  case.
- Implement lapic_eoi() and use it to implement ioapic_eoi_source().
- Rename atpic_sched_ithd() to atpic_handle_intr() since it is used to
  handle all atpic interrupts and not just threaded ones.

Inspired by:	peter's changes to amd64 in p4 (1)
Requested by:	bde (2)

1 files changed, 5 insertions, 1 deletions

diff --git a/sys/amd64/isa/atpic.c b/sys/amd64/isa/atpic.c
index 3dfb125..0f17af3 100644
--- a/sys/amd64/isa/atpic.c
+++ b/sys/amd64/isa/atpic.c
@@ -192,6 +192,10 @@ atpic_eoi_master(struct intsrc *isrc)
 #endif
 }
 
+/*
+ * The data sheet says no auto-EOI on slave, but it sometimes works.
+ * So, if AUTO_EOI_2 is enabled, we use it.
+ */
 static void
 atpic_eoi_slave(struct intsrc *isrc)
 {
@@ -327,7 +331,7 @@ atpic_init(void *dummy __unused)
 SYSINIT(atpic_init, SI_SUB_INTR, SI_ORDER_SECOND + 1, atpic_init, NULL)
 
 void
-atpic_sched_ithd(struct intrframe iframe)
+atpic_handle_intr(struct intrframe iframe)
 {
 	struct intsrc *isrc;