1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef _MPU_H_
18 #define _MPU_H_
19 
20 #ifdef __cplusplus
21 extern "C" {
22 #endif
23 
24 
25 /*
26  * MPU is very specific to each platform, so here really we just
27  * leave it to the platform code to do the right thing for all the
28  * requisite areas and such. Thhe simplest valid MPU implementation
29  * will do nothing. Clearly we should strive to do more than that
30  */
31 
32 void mpuStart(void);
33 void mpuAllowRamExecution(bool allowSvcExecute);         /* for Supervisor only, if possible */
34 void mpuAllowRomWrite(bool allowSvcWrite);     /* for Supervisor only, if possible */
35 void mpuShow(void);
36 
37 
38 #ifdef __cplusplus
39 }
40 #endif
41 
42 #endif
43 
44