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lock the kernel around calling interrupt stubs.

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This commit is contained in:
mrg 2001-03-15 03:20:43 +00:00
parent 122b3a0e67
commit ef26546e15
1 changed files with 15 additions and 2 deletions
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17
sys/arch/sparc/sparc/locore.s
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@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.136 2001/03/02 10:27:00 pk Exp $ */
/* $NetBSD: locore.s,v 1.137 2001/03/15 03:20:43 mrg Exp $ */
/*
* Copyright (c) 1996 Paul Kranenburg
@ -2161,6 +2161,7 @@ bpt:
bz slowtrap ! no, go do regular trap
nop
/* XXXSMP */
/*
* Build a trap frame for kgdb_trap_glue to copy.
* Enable traps but set ipl high so that we will not
@ -2506,6 +2507,12 @@ sparc_interrupt_common:
st %o0, [%l4 + %l5]
set _C_LABEL(intrhand), %l4 ! %l4 = intrhand[intlev];
ld [%l4 + %l5], %l4
#if defined(MULTIPROCESSOR) && defined(SUN4M) /* XXX */
call _C_LABEL(intr_lock_kernel)
nop
#endif
b 3f
st %fp, [%sp + CCFSZ + 16]
@ -2533,7 +2540,12 @@ sparc_interrupt_common:
call _C_LABEL(strayintr) ! strayintr(&intrframe)
add %sp, CCFSZ, %o0
/* all done: restore registers and go return */
4: mov %l7, %g1
4:
#if defined(MULTIPROCESSOR) && defined(SUN4M) /* XXX */
call _C_LABEL(intr_unlock_kernel)
nop
#endif
mov %l7, %g1
wr %l6, 0, %y
ldd [%sp + CCFSZ + 24], %g2
ldd [%sp + CCFSZ + 32], %g4
@ -4453,6 +4465,7 @@ ENTRY(switchexit)
mov %g5, %l6 ! %l6 = _idle_u
SET_SP_REDZONE(%l6, %l5)
#endif
wr %g0, PSR_S|PSR_ET, %psr ! and then enable traps
call _C_LABEL(exit2) ! exit2(p)
mov %g2, %o0