diff options
Diffstat (limited to 'lib/libkse/arch/i386/include/atomic_ops.h')
-rw-r--r-- | lib/libkse/arch/i386/include/atomic_ops.h | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/lib/libkse/arch/i386/include/atomic_ops.h b/lib/libkse/arch/i386/include/atomic_ops.h deleted file mode 100644 index 0cd47f8..0000000 --- a/lib/libkse/arch/i386/include/atomic_ops.h +++ /dev/null @@ -1,51 +0,0 @@ -/*- - * Copyright (c) 2001 Daniel Eischen <deischen@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Neither the name of the author nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#ifndef _ATOMIC_OPS_H_ -#define _ATOMIC_OPS_H_ - -/* - * Atomic swap: - * Atomic (tmp = *dst, *dst = val), then *res = tmp - * - * void atomic_swap32(intptr_t *dst, intptr_t val, intptr_t *res); - */ -static inline void -atomic_swap32(volatile intptr_t *dst, intptr_t val, intptr_t *res) -{ - __asm __volatile( - "xchgl %2, %1; movl %2, %0" - : "=m" (*res) : "m" (*dst), "r" (val) : "memory"); -} - -#define atomic_swap_ptr(d, v, r) \ - atomic_swap32((volatile intptr_t *)d, (intptr_t)v, (intptr_t *)r) - -#define atomic_swap_int(d, v, r) \ - atomic_swap32((volatile intptr_t *)d, (intptr_t)v, (intptr_t *)r) -#endif |