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Do not ACK IPIs before we finished loading all arguments.

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This commit is contained in:
martin 2007-09-09 16:29:55 +00:00
parent f4a91b1899
commit 0b1fe292ea
1 changed files with 9 additions and 4 deletions
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13
sys/arch/sparc64/sparc64/locore.s
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@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.257 2007/09/06 20:22:51 martin Exp $ */
/* $NetBSD: locore.s,v 1.258 2007/09/09 16:29:55 martin Exp $ */
/*
* Copyright (c) 1996-2002 Eduardo Horvath
@ -3628,8 +3628,6 @@ 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
#if KTR_COMPILE & KTR_INTR
CATR(KTR_TRAP, "interrupt_vector: tl %d ASI_IRSR %p ASI_IRDR %p",
@ -3653,10 +3651,17 @@ interrupt_vector:
brz,pn %g1, ret_from_intr_vector
mov IRDR_2H, %g2
ldxa [%g2] ASI_IRDR, %g2 ! Get IPI handler argument
stxa %g0, [%g0] ASI_IRSR ! Ack IRQ
membar #Sync ! Should not be needed due to retry
jmpl %g1, %g0
ldxa [%g2] ASI_IRDR, %g2 ! Get IPI handler argument
nop
Lsoftint_regular:
stxa %g0, [%g0] ASI_IRSR ! Ack IRQ
membar #Sync ! Should not be needed due to retry
sethi %hi(_C_LABEL(intrlev)), %g3
bgeu,pn %xcc, 3f
or %g3, %lo(_C_LABEL(intrlev)), %g3