/****************************************************************************
* arch/arm/src/armv7-a/addrenv.h
*
* Copyright (C) 2014 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_ARMV7_A_ADDRENV_H
#define __ARCH_ARM_SRC_ARMV7_A_ADDRENV_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
#ifdef CONFIG_ARCH_ADDRENV
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Aligned size of the kernel stack */
#ifdef CONFIG_ARCH_KERNEL_STACK
# define ARCH_KERNEL_STACKSIZE ((CONFIG_ARCH_KERNEL_STACKSIZE + 7) & ~7)
#endif
/* Using a 4KiB page size, each 1MiB section maps to a PTE containing
* 256*2KiB entries
*/
#define ENTRIES_PER_L2TABLE 256
/****************************************************************************
* Inline Functions
****************************************************************************/
#ifndef __ASSEMBLY__
#endif /* __ASSEMBLY__ */
/****************************************************************************
* Public Variables
****************************************************************************/
#ifndef __ASSEMBLY__
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: arm_addrenv_create_region
*
* Description:
* Create one memory region.
*
* Returned Value:
* On success, the number of pages allocated is returned. Otherwise, a
* negated errno value is returned.
*
****************************************************************************/
int arm_addrenv_create_region(FAR uintptr_t **list, unsigned int listlen,
uintptr_t vaddr, size_t regionsize,
uint32_t mmuflags);
/****************************************************************************
* Name: arm_addrenv_destroy_region
*
* Description:
* Destroy one memory region.
*
****************************************************************************/
void arm_addrenv_destroy_region(FAR uintptr_t **list, unsigned int listlen,
uintptr_t vaddr, bool keep);
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_ARCH_ADDRENV */
#endif /* __ARCH_ARM_SRC_ARMV7_A_ADDRENV_H */
