diff options
| author |   kettenis <kettenis@openbsd.org> | 2008-04-03 23:10:25 +0000 |
|---|---|---|
| committer | kettenis <kettenis@openbsd.org> | 2008-04-03 23:10:25 +0000 |
| commit | 08255d043f71b8765046969e35b5ab4e35adbae4 (patch) | |
| tree | d96562b51f79b68635b1d479972803ddd3bc042a | |
| parent | Clean up the DMA read/write control register setup code and add some (diff) | |
| download | wireguard-openbsd-08255d043f71b8765046969e35b5ab4e35adbae4.tar.xz wireguard-openbsd-08255d043f71b8765046969e35b5ab4e35adbae4.zip | |
Use atomic operations to invalidate TSB entries.
| -rw-r--r-- | sys/arch/sparc64/sparc64/pmap.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/arch/sparc64/sparc64/pmap.c b/sys/arch/sparc64/sparc64/pmap.c index 1a518b7e8d5..b4ebb568355 100644 --- a/sys/arch/sparc64/sparc64/pmap.c +++ b/sys/arch/sparc64/sparc64/pmap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap.c,v 1.58 2008/04/02 20:23:22 kettenis Exp $ */ +/* $OpenBSD: pmap.c,v 1.59 2008/04/03 23:10:25 kettenis Exp $ */ /* $NetBSD: pmap.c,v 1.107 2001/08/31 16:47:41 eeh Exp $ */ #undef NO_VCACHE /* Don't forget the locked TLB in dostart */ /* @@ -310,9 +310,11 @@ tsb_invalidate(int ctx, vaddr_t va) i = ptelookup_va(va); tag = TSB_TAG(0, ctx, va); if (tsb_dmmu[i].tag == tag) - tsb_dmmu[i].tag = TSB_TAG_INVALID; + sparc64_casx((volatile unsigned long *)&tsb_dmmu[i].tag, + tag, TSB_TAG_INVALID); if (tsb_immu[i].tag == tag) - tsb_immu[i].tag = TSB_TAG_INVALID; + sparc64_casx((volatile unsigned long *)&tsb_immu[i].tag, + tag, TSB_TAG_INVALID); } #if notyet |