[src/trunk]: src/sys/arch/arm/fdt more completely gic_fdt_disestablish() such...

[jakllsch <jakllsch%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/01f360c12a08
branches:  trunk
changeset: 362390:01f360c12a08
user:      jakllsch <jakllsch%NetBSD.org@localhost>
date:      Wed Jun 06 19:49:51 2018 +0000

description:
more completely gic_fdt_disestablish() such that it's possible to
re-establish later

diffstat:

 sys/arch/arm/fdt/gic_fdt.c |  9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diffs (53 lines):

diff -r 7a30a2be39f8 -r 01f360c12a08 sys/arch/arm/fdt/gic_fdt.c
--- a/sys/arch/arm/fdt/gic_fdt.c        Wed Jun 06 18:10:35 2018 +0000
+++ b/sys/arch/arm/fdt/gic_fdt.c        Wed Jun 06 19:49:51 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: gic_fdt.c,v 1.8 2017/11/30 14:42:37 skrll Exp $ */
+/* $NetBSD: gic_fdt.c,v 1.9 2018/06/06 19:49:51 jakllsch Exp $ */
 
 /*-
  * Copyright (c) 2015-2017 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: gic_fdt.c,v 1.8 2017/11/30 14:42:37 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: gic_fdt.c,v 1.9 2018/06/06 19:49:51 jakllsch Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -80,6 +80,7 @@
        int                     intr_level;
        int                     intr_mpsafe;
        TAILQ_HEAD(, gic_fdt_irqhandler) intr_handlers;
+       int                     intr_irq;
 };
 
 struct gic_fdt_softc {
@@ -190,6 +191,7 @@
                firq->intr_level = level;
                firq->intr_mpsafe = mpsafe;
                TAILQ_INIT(&firq->intr_handlers);
+               firq->intr_irq = irq;
                if (arg == NULL) {
                        firq->intr_ih = intr_establish(irq, ipl, level | mpsafe,
                            func, NULL);
@@ -239,8 +241,10 @@
 static void
 gic_fdt_disestablish(device_t dev, void *ih)
 {
+       struct gic_fdt_softc * const sc = device_private(dev);
        struct gic_fdt_irqhandler *firqh = ih;
        struct gic_fdt_irq *firq = firqh->ih_irq;
+       const int irq = firq->intr_irq;
 
        KASSERT(firq->intr_refcnt > 0);
 
@@ -251,6 +255,7 @@
        if (firq->intr_refcnt == 0) {
                intr_disestablish(firq->intr_ih);
                kmem_free(firq, sizeof(*firq));
+               sc->sc_irq[irq] = NULL;
        }
 }