nuttx/arch/arm/src/sam34/sam_mpuinit.h

115 lines
4.1 KiB
C

/************************************************************************************
* arch/arm/src/sam34/sam_mpuinit.h
*
* Copyright (C) 2009-2011, 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __ARCH_ARM_SRC_SAM34_SAM_MPUINIT_H
#define __ARCH_ARM_SRC_SAM34_SAM_MPUINIT_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
/************************************************************************************
* Definitions
************************************************************************************/
/************************************************************************************
* Public Types
************************************************************************************/
/************************************************************************************
* Inline Functions
************************************************************************************/
#ifndef __ASSEMBLY__
/************************************************************************************
* Public Data
************************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/************************************************************************************
* Public Function Prototypes
************************************************************************************/
/****************************************************************************
* Name: sam_mpuinitialize
*
* Description:
* Configure the MPU to permit user-space access to only unrestricted SAM3/4
* resources.
*
****************************************************************************/
#ifdef CONFIG_NUTTX_KERNEL
void sam_mpuinitialize(void);
#else
# define sam_mpuinitialize()
#endif
/****************************************************************************
* Name: sam_mpu_uheap
*
* Description:
* Map the user heap region.
*
****************************************************************************/
#ifdef CONFIG_NUTTX_KERNEL
void sam_mpu_uheap(uintptr_t start, size_t size);
#else
# define sam_mpu_uheap(start,size)
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_ARM_SRC_SAM34_SAM_MPUINIT_H */