diff options
Diffstat (limited to 'usr/src/uts/sparc/v9/sys/mutex_impl.h')
| -rw-r--r-- | usr/src/uts/sparc/v9/sys/mutex_impl.h | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/usr/src/uts/sparc/v9/sys/mutex_impl.h b/usr/src/uts/sparc/v9/sys/mutex_impl.h index d1236685fe..70b717eecf 100644 --- a/usr/src/uts/sparc/v9/sys/mutex_impl.h +++ b/usr/src/uts/sparc/v9/sys/mutex_impl.h @@ -2,9 +2,8 @@ * CDDL HEADER START * * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. @@ -20,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 1991-1998,2003 Sun Microsystems, Inc. All rights reserved. + * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -38,6 +37,7 @@ extern "C" { #endif +#define MUTEX_THREAD (-0x8) #ifndef _ASM /* @@ -96,7 +96,23 @@ typedef union mutex_impl { #define MUTEX_DESTROY(lp) \ (lp)->m_owner = ((uintptr_t)curthread | MUTEX_DEAD) +#define MUTEX_BACKOFF_BASE 1 +#define MUTEX_BACKOFF_SHIFT 1 +#define MUTEX_CAP_FACTOR 8 +#define MUTEX_DELAY() { \ + mutex_delay(); \ + } + +/* low-overhead clock read */ +extern u_longlong_t gettick(void); +#define MUTEX_GETTICK() gettick() +extern void null_xcall(void); +#define MUTEX_SYNC() xc_all((xcfunc_t *)null_xcall, 0, 0) + +extern void cas_delay(void *); +extern void rdccr_delay(void); extern int mutex_adaptive_tryenter(mutex_impl_t *); +extern void *mutex_owner_running(mutex_impl_t *); #endif /* _ASM */ |