111 lines
3.5 KiB
C
111 lines
3.5 KiB
C
/****************************************************************************
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* arch/arm/src/armv7-a/addrenv.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_ARMV7_A_ADDRENV_H
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#define __ARCH_ARM_SRC_ARMV7_A_ADDRENV_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#ifdef CONFIG_ARCH_ADDRENV
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Aligned size of the kernel stack */
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#ifdef CONFIG_ARCH_KERNEL_STACK
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# define ARCH_KERNEL_STACKSIZE ((CONFIG_ARCH_KERNEL_STACKSIZE + 7) & ~7)
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#endif
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/* Using a 4KiB page size, each 1MiB section maps to a PTE containing
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* 256*2KiB entries
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*/
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#define ENTRIES_PER_L2TABLE 256
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#endif /* __ASSEMBLY__ */
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: arm_addrenv_create_region
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*
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* Description:
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* Create one memory region.
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*
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* Returned Value:
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* On success, the number of pages allocated is returned. Otherwise, a
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* negated errno value is returned.
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*
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****************************************************************************/
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int arm_addrenv_create_region(uintptr_t **list, unsigned int listlen,
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uintptr_t vaddr, size_t regionsize,
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uint32_t mmuflags);
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/****************************************************************************
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* Name: arm_addrenv_destroy_region
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*
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* Description:
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* Destroy one memory region.
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*
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****************************************************************************/
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void arm_addrenv_destroy_region(uintptr_t **list, unsigned int listlen,
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uintptr_t vaddr, bool keep);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_ARCH_ADDRENV */
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#endif /* __ARCH_ARM_SRC_ARMV7_A_ADDRENV_H */
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