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- /****************************************************************************
- * mm/umm_heap/umm_initialize.c
- *
- * Copyright (C) 2013-2015 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.
- *
- ****************************************************************************/
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- #include <nuttx/config.h>
- #include <assert.h>
- #include <nuttx/mm/mm.h>
- #include "umm_heap/umm_heap.h"
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: umm_initialize
- *
- * Description:
- * This is a simple wrapper for the mm_initialize() function. This
- * function will initialize the user heap.
- *
- * CONFIG_BUILD_FLAT:
- * There is only kernel mode "blob" containing both containing both
- * kernel and application code. There is only one heap that use is
- * used by both the kernel and application logic.
- *
- * In this configuration, this function is called early in nx_start()
- * to initialize the common heap.
- *
- * CONFIG_BUILD_PROTECTED
- * In this configuration, there are two "blobs", one containing
- * protected kernel logic and one containing unprotected application
- * logic. Depending upon the setting of CONFIG_MM_KERNEL_HEAP there
- * may be only a signal shared heap, much as with CONFIG_BUILD_FLAT.
- * Or there may be separate protected/kernel and unprotected/user
- * heaps.
- *
- * In either case, this function is still called early in nx_start()
- * to initialize the user heap.
- *
- * CONFIG_BUILD_KERNEL
- * In this configuration there are multiple user heaps, one for each
- * user process. Furthermore, each heap is initially empty; memory
- * is added to each heap dynamically via sbrk(). The heap data
- * structure was set to zero when the address environment was created.
- * Otherwise, the heap is uninitialized.
- *
- * This function is not called at all. Rather, this function is called
- * when each user process is created before the first allocation is made.
- *
- * Input Parameters:
- * heap_start - Address of the beginning of the (initial) memory region
- * heap_size - The size (in bytes) if the (initial) memory region.
- *
- * Returned Value:
- * None
- *
- ****************************************************************************/
- void umm_initialize(FAR void *heap_start, size_t heap_size)
- {
- mm_initialize(USR_HEAP, heap_start, heap_size);
- }
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