72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
/****************************************************************************
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* arch/sparc/src/common/sparc_allocateheap.c
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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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/****************************************************************************
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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 <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/board.h>
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#include <arch/board/board.h>
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#include "sparc_internal.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_allocate_heap
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*
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* Description:
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* This function will be called to dynamically set aside the heap region.
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*
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* For the kernel build (CONFIG_BUILD_KERNEL=y) with both kernel- and
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* user-space heaps (CONFIG_MM_KERNEL_HEAP=y), this function provides the
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* size of the unprotected, user-space heap.
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*
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* If a protected kernel-space heap is provided, the kernel heap must be
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* allocated (and protected) by an analogous up_allocate_kheap().
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*
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****************************************************************************/
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void up_allocate_heap(void **heap_start, size_t *heap_size)
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{
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*heap_start = (void *)g_idle_topstack;
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*heap_size = CONFIG_RAM_END - g_idle_topstack;
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}
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