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-rw-r--r--sys/arch/sparc64/sparc64/locore.s16
1 files changed, 11 insertions, 5 deletions
diff --git a/sys/arch/sparc64/sparc64/locore.s b/sys/arch/sparc64/sparc64/locore.s
index ac677c22686..0aba00db92b 100644
--- a/sys/arch/sparc64/sparc64/locore.s
+++ b/sys/arch/sparc64/sparc64/locore.s
@@ -1,4 +1,4 @@
-/* $OpenBSD: locore.s,v 1.93 2007/10/20 16:54:52 miod Exp $ */
+/* $OpenBSD: locore.s,v 1.94 2007/10/20 21:08:31 kettenis Exp $ */
/* $NetBSD: locore.s,v 1.137 2001/08/13 06:10:10 jdolecek Exp $ */
/*
@@ -3176,8 +3176,6 @@ interrupt_vector:
mov IRDR_0H, %g2
ldxa [%g2] ASI_IRDR, %g2 ! Get interrupt number
membar #Sync
- stxa %g0, [%g0] ASI_IRSR ! Ack IRQ
- membar #Sync ! Should not be needed due to retry
btst IRSR_BUSY, %g1
bz,pn %icc, 3f ! Spurious interrupt
@@ -3186,10 +3184,15 @@ interrupt_vector:
blu,pt %xcc, Lsoftint_regular
sllx %g2, 3, %g5 ! Calculate entry number
mov IRDR_1H, %g3
- ldxa [%g3] ASI_IRDR, %g3 ! Get IPI handler arg0
+ ldxa [%g3] ASI_IRDR, %g3 ! Get IPI handler arg0
mov IRDR_2H, %g5
+ ldxa [%g5] ASI_IRDR, %g5 ! Get IPI handler arg1
+
+ stxa %g0, [%g0] ASI_IRSR ! Ack IRQ
+ membar #Sync ! Should not be needed due to retry
+
jmpl %g2, %g0
- ldxa [%g5] ASI_IRDR, %g5 ! Get IPI handler arg1
+ nop
Debugger()
NOTREACHED
#else
@@ -3198,6 +3201,9 @@ interrupt_vector:
#endif
Lsoftint_regular:
+ stxa %g0, [%g0] ASI_IRSR ! Ack IRQ
+ membar #Sync ! Should not be needed due to retry
+
sethi %hi(_C_LABEL(intrlev)), %g3
or %g3, %lo(_C_LABEL(intrlev)), %g3
ldx [%g3 + %g5], %g5 ! We have a pointer to the handler