diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2009-03-27 23:21:19 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2009-03-27 23:21:19 +0000 |
| commit | 9f46dceac4212747ceaf510aa3690bd4eeb831ad (patch) | |
| tree | d60d55e82c1dcecd70348338e2ec84140cf3715f /sys/arch/sparc | |
| parent | 7f6d3a31168a634728b1d4c9e25fa4e594244d1e (diff) | |
When clearing soft interrupts on sun4m, be sure to force the bit clear to
be acked by the hardware before continuing; this makes Ross systems
stable when using hme; from NetBSD.
Diffstat (limited to 'sys/arch/sparc')
| -rw-r--r-- | sys/arch/sparc/sparc/locore.s | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/arch/sparc/sparc/locore.s b/sys/arch/sparc/sparc/locore.s index 5278ac381df..7b757b773db 100644 --- a/sys/arch/sparc/sparc/locore.s +++ b/sys/arch/sparc/sparc/locore.s @@ -1,4 +1,4 @@ -/* $OpenBSD: locore.s,v 1.82 2008/10/10 20:21:39 deraadt Exp $ */ +/* $OpenBSD: locore.s,v 1.83 2009/03/27 23:21:18 miod Exp $ */ /* $NetBSD: locore.s,v 1.73 1997/09/13 20:36:48 pk Exp $ */ /* @@ -2404,6 +2404,10 @@ _C_LABEL(sparc_interrupt4m): sethi %hi(ICR_PI_CLR), %l6 sll %l4, 16, %l5 st %l5, [%l6 + %lo(ICR_PI_CLR)] + /* Drain hw reg; might be necessary for Ross CPUs */ + sethi %hi(ICR_PI_PEND), %l6 + ld [%l6 + %lo(ICR_PI_PEND)], %g0 + b,a softintr_common #endif |