x86: allocate membarrier system call number
[urcu.git] / urcu / arch / alpha.h
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1#ifndef _URCU_ARCH_ALPHA_H
2#define _URCU_ARCH_ALPHA_H
3
4/*
5 * arch_alpha.h: trivial definitions for the Alpha architecture.
6 *
7 * Copyright (c) 2010 Paolo Bonzini <pbonzini@redhat.com>
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
05dd4b94 13 *
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14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#include <urcu/compiler.h>
25#include <urcu/config.h>
999991c6 26#include <urcu/syscall-compat.h>
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27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
e51500ed
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32#define cmm_mb() __asm__ __volatile__ ("mb":::"memory")
33#define cmm_wmb() __asm__ __volatile__ ("wmb":::"memory")
34#define cmm_read_barrier_depends() __asm__ __volatile__ ("mb":::"memory")
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35
36typedef unsigned long long cycles_t;
37
71bce82c 38static inline cycles_t caa_get_cycles (void)
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39{
40 return 0; /* not supported */
41}
42
43#ifdef __cplusplus
44}
45#endif
46
1b9119f8 47#include <urcu/arch/generic.h>
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48
49#endif /* _URCU_ARCH_ALPHA_H */
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