1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #ifndef _LOS_MP_H
33 #define _LOS_MP_H
34
35 #include "los_config.h"
36 #include "los_list.h"
37
38 #ifdef __cplusplus
39 #if __cplusplus
40 extern "C" {
41 #endif /* __cplusplus */
42 #endif /* __cplusplus */
43
44 #define OS_MP_CPU_ALL LOSCFG_KERNEL_CPU_MASK
45
46 #define OS_MP_GC_PERIOD 100 /* ticks */
47
48 typedef enum {
49 LOS_MP_IPI_WAKEUP,
50 LOS_MP_IPI_SCHEDULE,
51 LOS_MP_IPI_HALT,
52 #ifdef LOSCFG_KERNEL_SMP_CALL
53 LOS_MP_IPI_FUNC_CALL,
54 #endif
55 } MP_IPI_TYPE;
56
57 typedef VOID (*SMP_FUNC_CALL)(VOID *args);
58
59 #ifdef LOSCFG_KERNEL_SMP
60 extern VOID LOS_MpSchedule(UINT32 target);
61 extern VOID OsMpWakeHandler(VOID);
62 extern VOID OsMpScheduleHandler(VOID);
63 extern VOID OsMpHaltHandler(VOID);
64 extern UINT32 OsMpInit(VOID);
65 #else
LOS_MpSchedule(UINT32 target)66 STATIC INLINE VOID LOS_MpSchedule(UINT32 target)
67 {
68 (VOID)target;
69 }
70 #endif
71
72 #ifdef LOSCFG_KERNEL_SMP_CALL
73 typedef struct {
74 LOS_DL_LIST node;
75 SMP_FUNC_CALL func;
76 VOID *args;
77 } MpCallFunc;
78
79 /**
80 * It is used to call function on target cpus by sending ipi, and the first param is target cpu mask value.
81 */
82 extern VOID OsMpFuncCall(UINT32 target, SMP_FUNC_CALL func, VOID *args);
83 extern VOID OsMpFuncCallHandler(VOID);
84 #else
OsMpFuncCall(UINT32 target,SMP_FUNC_CALL func,VOID * args)85 INLINE VOID OsMpFuncCall(UINT32 target, SMP_FUNC_CALL func, VOID *args)
86 {
87 (VOID)target;
88 if (func != NULL) {
89 func(args);
90 }
91 }
92 #endif /* LOSCFG_KERNEL_SMP_CALL */
93
94 #ifdef __cplusplus
95 #if __cplusplus
96 }
97 #endif /* __cplusplus */
98 #endif /* __cplusplus */
99
100 #endif /* _LOS_MP_H_ */
101