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Allow to share IPI interrupt.

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This commit is contained in:
nonaka 2015-01-23 06:16:23 +00:00
parent 8c82b13dab
commit 4466bef17e
1 changed files with 20 additions and 4 deletions
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24
sys/arch/powerpc/booke/e500_intr.c
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@ -1,4 +1,4 @@
/* $NetBSD: e500_intr.c,v 1.29 2015/01/05 07:40:05 nonaka Exp $ */
/* $NetBSD: e500_intr.c,v 1.30 2015/01/23 06:16:23 nonaka Exp $ */
/*-
* Copyright (c) 2010, 2011 The NetBSD Foundation, Inc.
* All rights reserved.
@ -39,7 +39,7 @@
#define __INTR_PRIVATE
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: e500_intr.c,v 1.29 2015/01/05 07:40:05 nonaka Exp $");
__KERNEL_RCSID(0, "$NetBSD: e500_intr.c,v 1.30 2015/01/23 06:16:23 nonaka Exp $");
#include <sys/param.h>
#include <sys/proc.h>
@ -83,6 +83,7 @@ struct intr_source {
int8_t is_ipl;
uint8_t is_ist;
uint8_t is_irq;
uint8_t is_refcnt;
bus_size_t is_vpr;
bus_size_t is_dr;
};
@ -737,8 +738,16 @@ e500_intr_cpu_establish(struct cpu_info *ci, int irq, int ipl, int ist,
struct intr_source * const is = &e500_intr_sources[ii.irq_vector];
mutex_enter(&e500_intr_lock);
if (is->is_ipl != IPL_NONE) {
mutex_exit(&e500_intr_lock);
return NULL;
/* XXX IPI0 is shared by all CPU. */
if (is->is_ist != IST_IPI ||
is->is_irq != irq ||
is->is_ipl != ipl ||
is->is_ist != ist ||
is->is_func != handler ||
is->is_arg != arg) {
mutex_exit(&e500_intr_lock);
return NULL;
}
}
is->is_func = handler;
@ -746,6 +755,7 @@ e500_intr_cpu_establish(struct cpu_info *ci, int irq, int ipl, int ist,
is->is_ipl = ipl;
is->is_ist = ist;
is->is_irq = irq;
is->is_refcnt++;
is->is_vpr = ii.irq_vpr;
is->is_dr = ii.irq_dr;
@ -812,6 +822,12 @@ e500_intr_disestablish(void *vis)
KASSERT(is - e500_intr_sources == ii.irq_vector);
mutex_enter(&e500_intr_lock);
if (is->is_refcnt-- > 1) {
mutex_exit(&e500_intr_lock);
return;
}
/*
* Mask the source using the mask (MSK) bit in the vector/priority reg.
*/