source: rtems-libbsd/rtemsbsd/powerpc/include/linux/smp.h @ 583216a

5-freebsd-12
Last change on this file since 583216a was 583216a, checked in by Sebastian Huber <sebastian.huber@…>, on Jan 16, 2018 at 12:07:36 PM

linux/smp.h: Avoid function call overhead

Update #3277.

  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2 * Copyright (c) 2015 embedded brains GmbH
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
18 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef _LINUX_SMP_H
28#define _LINUX_SMP_H
29
30#include <rtems.h>
31#include <rtems/score/smpimpl.h>
32
33#ifdef __cplusplus
34extern "C" {
35#endif /* __cplusplus */
36
37#define smp_processor_id() ((int)_SMP_Get_current_processor())
38
39typedef void (*smp_call_func_t)(void *arg);
40
41static inline int
42smp_call_function_single(int cpu, smp_call_func_t func, void *arg, int wait)
43{
44        cpu_set_t set;
45
46        (void)wait;
47        CPU_ZERO(&set);
48        CPU_SET(cpu, &set);
49        _SMP_Multicast_action(sizeof(set), &set, func, arg);
50        return (0);
51}
52
53#ifdef __cplusplus
54}
55#endif /* __cplusplus */
56
57#endif /* _LINUX_SMP_H */
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