xref: /f-stack/lib/include/machine/pcpu.h (revision 22ce4aff)
1a9643ea8Slogwang /*
2a9643ea8Slogwang  * Copyright (c) 2010 Kip Macy All rights reserved.
3a9643ea8Slogwang  * Copyright (C) 2017 THL A29 Limited, a Tencent company.
4a9643ea8Slogwang  * All rights reserved.
5a9643ea8Slogwang  *
6a9643ea8Slogwang  * Redistribution and use in source and binary forms, with or without
7a9643ea8Slogwang  * modification, are permitted provided that the following conditions are met:
8a9643ea8Slogwang  *
9a9643ea8Slogwang  * 1. Redistributions of source code must retain the above copyright notice, this
10a9643ea8Slogwang  *   list of conditions and the following disclaimer.
11a9643ea8Slogwang  * 2. Redistributions in binary form must reproduce the above copyright notice,
12a9643ea8Slogwang  *   this list of conditions and the following disclaimer in the documentation
13a9643ea8Slogwang  *   and/or other materials provided with the distribution.
14a9643ea8Slogwang  *
15a9643ea8Slogwang  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
16a9643ea8Slogwang  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17a9643ea8Slogwang  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18a9643ea8Slogwang  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
19a9643ea8Slogwang  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20a9643ea8Slogwang  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21a9643ea8Slogwang  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22a9643ea8Slogwang  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23a9643ea8Slogwang  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24a9643ea8Slogwang  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25a9643ea8Slogwang  *
26a9643ea8Slogwang  */
27a9643ea8Slogwang 
28a9643ea8Slogwang #ifndef _FSTACK_MACHINE_PCPU_H_
29a9643ea8Slogwang #define _FSTACK_MACHINE_PCPU_H_
30a9643ea8Slogwang 
31a9643ea8Slogwang #include_next <machine/pcpu.h>
32a9643ea8Slogwang 
33a9643ea8Slogwang #undef __curthread
34a9643ea8Slogwang #undef PCPU_GET
35a9643ea8Slogwang #undef PCPU_ADD
36a9643ea8Slogwang #undef PCPU_INC
37a9643ea8Slogwang #undef PCPU_PTR
38a9643ea8Slogwang #undef PCPU_SET
39a9643ea8Slogwang 
40a9643ea8Slogwang extern __thread struct thread *pcurthread;
41a9643ea8Slogwang extern struct pcpu *pcpup;
42a9643ea8Slogwang 
43a9643ea8Slogwang #define PCPU_GET(member)         (pcpup->pc_ ## member)
44a9643ea8Slogwang #define PCPU_ADD(member, val)    (pcpup->pc_ ## member += (val))
45a9643ea8Slogwang #define PCPU_INC(member)         PCPU_ADD(member, 1)
46a9643ea8Slogwang #define PCPU_PTR(member)         (&pcpup->pc_ ## member)
47a9643ea8Slogwang #define PCPU_SET(member, val)    (pcpup->pc_ ## member = (val))
48a9643ea8Slogwang 
49a9643ea8Slogwang static __inline struct thread *
50a9643ea8Slogwang __curthread_ff(void)
51a9643ea8Slogwang {
52a9643ea8Slogwang     return (pcurthread);
53a9643ea8Slogwang }
54a9643ea8Slogwang 
55*22ce4affSfengbojiang #ifndef __curthread
56a9643ea8Slogwang #define __curthread __curthread_ff
57*22ce4affSfengbojiang #endif
58a9643ea8Slogwang 
59a9643ea8Slogwang #ifndef curthread
60a9643ea8Slogwang #define curthread __curthread_ff()
61a9643ea8Slogwang #endif
62*22ce4affSfengbojiang 
63a9643ea8Slogwang #endif    /* _FSTACK_MACHINE_PCPU_H_ */
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