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Make sure access of ssir atomic. (from luna68k)

This commit is contained in:
tsutsui 2000-02-16 15:32:03 +00:00
parent a6343f76db
commit 1da0c062ce
1 changed files with 7 additions and 4 deletions
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11
sys/arch/news68k/include/intr.h
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@ -1,4 +1,4 @@
/* $NetBSD: intr.h,v 1.2 1999/12/29 05:01:14 tsutsui Exp $ */
/* $NetBSD: intr.h,v 1.3 2000/02/16 15:32:03 tsutsui Exp $ */
/*
*
@ -74,15 +74,18 @@ extern volatile u_char *ctrl_int2;
#define SIR_CLOCK 1
#define NEXT_SIR 2
#define siroff(x) ssir &= ~(x)
#define siron(x) \
__asm __volatile ("orb %0,%1" : : "di" ((u_char)(x)), "g" (ssir))
#define siroff(x) \
__asm __volatile ("andb %0,%1" : : "di" ((u_char)~(x)), "g" (ssir))
#define setsoftint(x) do { \
ssir |= (x); \
siron(x); \
*ctrl_int2 = 0xff; \
} while (0)
#define setsoftnet() setsoftint(1 << SIR_NET)
#define setsoftclock() setsoftint(1 << SIR_CLOCK)
u_char allocate_sir __P((void (*) __P((void *)), void *));
u_char allocate_sir __P((void (*)(void *), void *));
void init_sir __P((void));
#endif /* _KERNEL */