mirror of https://github.com/sipwise/kamailio.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
3.2 KiB
91 lines
3.2 KiB
/*
|
|
* Copyright (C) 2006 iptelorg GmbH
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief Memory barriers for SPARC32 ( version < v 9))
|
|
*
|
|
* Memory barriers for SPARC32 ( version < v 9)), see atomic_ops.h for more
|
|
* details.
|
|
*
|
|
* Config defines:
|
|
* - NOSMP
|
|
* @ingroup atomic
|
|
*/
|
|
|
|
|
|
#ifndef _atomic_sparc_h
|
|
#define _atomic_sparc_h
|
|
|
|
#define HAVE_ASM_INLINE_MEMBAR
|
|
|
|
|
|
#warning "sparc32 atomic operations support not tested"
|
|
|
|
#ifdef NOSMP
|
|
#define membar() asm volatile("" : : : "memory") /* gcc do not cache barrier*/
|
|
#define membar_read() membar()
|
|
#define membar_write() membar()
|
|
#define membar_depends() \
|
|
do { \
|
|
} while(0) /* really empty, not even a cc bar. */
|
|
/* lock barriers: empty, not needed for NOSMP; the lock/unlock should already
|
|
* contain gcc barriers*/
|
|
#define membar_enter_lock() \
|
|
do { \
|
|
} while(0)
|
|
#define membar_leave_lock() \
|
|
do { \
|
|
} while(0)
|
|
/* membars after or before atomic_ops or atomic_setget -> use these or
|
|
* mb_<atomic_op_name>() if you need a memory barrier in one of these
|
|
* situations (on some archs where the atomic operations imply memory
|
|
* barriers is better to use atomic_op_x(); membar_atomic_op() then
|
|
* atomic_op_x(); membar()) */
|
|
#define membar_atomic_op() membar()
|
|
#define membar_atomic_setget() membar()
|
|
#define membar_write_atomic_op() membar_write()
|
|
#define membar_write_atomic_setget() membar_write()
|
|
#define membar_read_atomic_op() membar_read()
|
|
#define membar_read_atomic_setget() membar_read()
|
|
#else /* SMP */
|
|
#define membar_write() asm volatile("stbar \n\t" : : : "memory")
|
|
#define membar() membar_write()
|
|
#define membar_read() asm volatile("" : : : "memory")
|
|
#define membar_depends() \
|
|
do { \
|
|
} while(0) /* really empty, not even a cc bar. */
|
|
#define membar_enter_lock() \
|
|
do { \
|
|
} while(0)
|
|
#define membar_leave_lock() asm volatile("stbar \n\t" : : : "memory")
|
|
/* membars after or before atomic_ops or atomic_setget -> use these or
|
|
* mb_<atomic_op_name>() if you need a memory barrier in one of these
|
|
* situations (on some archs where the atomic operations imply memory
|
|
* barriers is better to use atomic_op_x(); membar_atomic_op() then
|
|
* atomic_op_x(); membar()) */
|
|
#define membar_atomic_op() membar()
|
|
#define membar_atomic_setget() membar()
|
|
#define membar_write_atomic_op() membar_write()
|
|
#define membar_write_atomic_setget() membar_write()
|
|
#define membar_read_atomic_op() membar_read()
|
|
#define membar_read_atomic_setget() membar_read()
|
|
|
|
#endif /* NOSMP */
|
|
|
|
|
|
#endif
|