diff options
Diffstat (limited to 'sys/i386/isa/intr_machdep.h')
| -rw-r--r-- | sys/i386/isa/intr_machdep.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/i386/isa/intr_machdep.h b/sys/i386/isa/intr_machdep.h index 39bffb9..1726635 100644 --- a/sys/i386/isa/intr_machdep.h +++ b/sys/i386/isa/intr_machdep.h @@ -126,7 +126,15 @@ #endif /* SMP || APIC_IO */ -#ifndef LOCORE +#ifdef LOCORE + +/* + * Protects the IO APIC, 8259 PIC, imen, and apic_imen + */ +#define ICU_LOCK MTX_LOCK_SPIN(icu_lock, 0) +#define ICU_UNLOCK MTX_UNLOCK_SPIN(icu_lock) + +#else /* LOCORE */ /* * Type of the first (asm) part of an interrupt handler. @@ -139,6 +147,7 @@ extern u_long *intr_countp[]; /* pointers into intrcnt[] */ extern driver_intr_t *intr_handler[]; /* C entry points of intr handlers */ extern struct ithd *ithds[]; extern void *intr_unit[]; /* cookies to pass to intr handlers */ +extern struct mtx icu_lock; inthand_t IDTVEC(fastintr0), IDTVEC(fastintr1), |
