diff options
Diffstat (limited to 'sys/arch/sgi/localbus/macebus.c')
| -rw-r--r-- | sys/arch/sgi/localbus/macebus.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/sys/arch/sgi/localbus/macebus.c b/sys/arch/sgi/localbus/macebus.c index 0d87778b3db..fe2633d42bf 100644 --- a/sys/arch/sgi/localbus/macebus.c +++ b/sys/arch/sgi/localbus/macebus.c @@ -1,4 +1,4 @@ -/* $OpenBSD: macebus.c,v 1.29 2007/10/14 11:18:42 jsing Exp $ */ +/* $OpenBSD: macebus.c,v 1.30 2007/11/11 14:56:41 jsing Exp $ */ /* * Copyright (c) 2000-2004 Opsycon AB (www.opsycon.se) @@ -733,6 +733,9 @@ macebus_iointr(intrmask_t hwpend, struct trap_frame *cf) int v; intrmask_t pending; u_int64_t intstat, isastat, mask; +#ifdef DIAGNOSTIC + static int spurious = 0; +#endif intstat = bus_space_read_8(&crimebus_tag, crime_h, CRIME_INT_STAT); intstat &= 0xffff; @@ -768,8 +771,27 @@ macebus_iointr(intrmask_t hwpend, struct trap_frame *cf) } } - if (caught) + if (caught) { +#ifdef DIAGNOSTIC + spurious = 0; +#endif return CR_INT_0; + } + +#ifdef DIAGNOSTIC + if (pending != 0) { + printf("stray interrupt, mace mask %lx stat %lx\n" + "crime mask %lx stat %lx hard %lx (pending %lx caught %lx)\n", + bus_space_read_8(&macebus_tag, mace_h, MACE_ISA_INT_MASK), + bus_space_read_8(&macebus_tag, mace_h, MACE_ISA_INT_STAT), + bus_space_read_8(&crimebus_tag, crime_h, CRIME_INT_MASK), + bus_space_read_8(&crimebus_tag, crime_h, CRIME_INT_STAT), + bus_space_read_8(&crimebus_tag, crime_h, CRIME_INT_HARD), + pending, caught); + if (++spurious >= 10) + panic("too many stray interrupts"); + } +#endif return 0; /* Not found here. */ } |