diff options
| author | matt <matt@NetBSD.org> | 2012-08-16 04:49:47 +0000 |
|---|---|---|
| committer | matt <matt@NetBSD.org> | 2012-08-16 04:49:47 +0000 |
| commit | 6a3069e1c50fa610f804db3be271aa4ae210b024 (patch) | |
| tree | 4fa288126e23a6b3717c3badfef8f9e5d11c61c4 /lib/libpthread/pthread_spin.c | |
| parent | f54a3f5e69cc66993e101f08febc3fd40e22324d (diff) | |
Add a pthread__smt_wake and add support for it on arm along with
pthread__smt_pause. These are implemented using the ARM instructions
SEV (wake) and WFE (pause). These are treated as NOPs on ARM CPUs that
don't support them.
Diffstat (limited to 'lib/libpthread/pthread_spin.c')
| -rw-r--r-- | lib/libpthread/pthread_spin.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/libpthread/pthread_spin.c b/lib/libpthread/pthread_spin.c index 910a94548b4..01738d73c5b 100644 --- a/lib/libpthread/pthread_spin.c +++ b/lib/libpthread/pthread_spin.c @@ -1,4 +1,4 @@ -/* $NetBSD: pthread_spin.c,v 1.5 2008/04/28 20:23:01 martin Exp $ */ +/* $NetBSD: pthread_spin.c,v 1.6 2012/08/16 04:49:47 matt Exp $ */ /*- * Copyright (c) 2001, 2006, 2007 The NetBSD Foundation, Inc. @@ -34,7 +34,7 @@ */ #include <sys/cdefs.h> -__RCSID("$NetBSD: pthread_spin.c,v 1.5 2008/04/28 20:23:01 martin Exp $"); +__RCSID("$NetBSD: pthread_spin.c,v 1.6 2012/08/16 04:49:47 matt Exp $"); #include <sys/types.h> #include <sys/ras.h> @@ -133,6 +133,7 @@ pthread_spin_unlock(pthread_spinlock_t *lock) self = pthread__self(); pthread__spinunlock(self, &lock->pts_spin); + pthread__smt_wake(); return 0; } |
