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In softintr_dispatch(), clear ssir bit before calling softintr handlers 

with a single_inst op, otherwise sometimes softintr might be lost.
This commit is contained in:
tsutsui 2003-07-19 16:06:27 +00:00
parent 1fe335b800
commit aa0eea7974
1 changed files with 7 additions and 6 deletions
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13
sys/arch/hp300/hp300/softintr.c
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@ -1,4 +1,4 @@
/* $NetBSD: softintr.c,v 1.2 2002/03/15 05:52:54 gmcgarry Exp $ */ /* $NetBSD: softintr.c,v 1.3 2003/07/19 16:06:27 tsutsui Exp $ */
/*- /*-
* Copyright (c) 2000 The NetBSD Foundation, Inc. * Copyright (c) 2000 The NetBSD Foundation, Inc.
@ -42,7 +42,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: softintr.c,v 1.2 2002/03/15 05:52:54 gmcgarry Exp $"); __KERNEL_RCSID(0, "$NetBSD: softintr.c,v 1.3 2003/07/19 16:06:27 tsutsui Exp $");
#include <sys/param.h> #include <sys/param.h>
#include <sys/systm.h> #include <sys/systm.h>
@ -53,6 +53,8 @@ __KERNEL_RCSID(0, "$NetBSD: softintr.c,v 1.2 2002/03/15 05:52:54 gmcgarry Exp $"
#include <uvm/uvm_extern.h> #include <uvm/uvm_extern.h>
#include <m68k/asm_single.h>
#include <machine/cpu.h> #include <machine/cpu.h>
#include <machine/intr.h> #include <machine/intr.h>
@ -102,8 +104,8 @@ softintr_dispatch()
u_int8_t mask; u_int8_t mask;
do { do {
mask = 0x1; mask = 0x01;
for (mask = 1, hsi = hp300_soft_intrs, handled = 0; for (hsi = hp300_soft_intrs, handled = 0;
hsi < &hp300_soft_intrs[IPL_NSOFT]; hsi < &hp300_soft_intrs[IPL_NSOFT];
hsi++, mask <<= 1) { hsi++, mask <<= 1) {
@ -112,6 +114,7 @@ softintr_dispatch()
hsi->hsi_evcnt.ev_count++; hsi->hsi_evcnt.ev_count++;
handled++; handled++;
single_inst_bclr_b(ssir, mask);
for (sih = LIST_FIRST(&hsi->hsi_q); for (sih = LIST_FIRST(&hsi->hsi_q);
sih != NULL; sih != NULL;
@ -122,8 +125,6 @@ softintr_dispatch()
(*sih->sih_fn)(sih->sih_arg); (*sih->sih_fn)(sih->sih_arg);
} }
} }
ssir &= ~mask;
} }
} while (handled); } while (handled);
} }