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Diffstat (limited to 'nuttx/mm/kmm_initialize.c')
-rw-r--r-- | nuttx/mm/kmm_initialize.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/nuttx/mm/kmm_initialize.c b/nuttx/mm/kmm_initialize.c deleted file mode 100644 index c5f5df05d..000000000 --- a/nuttx/mm/kmm_initialize.c +++ /dev/null @@ -1,113 +0,0 @@ -/************************************************************************ - * mm/kmm_initialize.c - * - * Copyright (C) 2011 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 <nuttx/kmalloc.h> - -#if defined(CONFIG_NUTTX_KERNEL) && defined(__KERNEL__) - -/* This logic is all tentatively and, hopefully, will grow in usability. - * For now, the kernel-mode build uses the memory manager that is - * provided in the user-space build. That is awkward but reasonable for - * the current level of support: At present, only memory protection is - * provided. Kernel-mode code may call into user-mode code, but not - * vice-versa. So hosting the memory manager in user-space allows the - * memory manager to be shared in both kernel- and user-mode spaces. - * - * In the longer run, if an MMU is support that can provide virtualized - * memory, then some SLAB memory manager will be required in kernel-space - * with some kind of brk() system call to obtain mapped heap space. - * - * In the current build model, the user-space module is built first. The - * file user_map.h is generated in the first pass and contains the - * addresses of the memory manager needed in this file: - */ - -#include <arch/board/user_map.h> - -/************************************************************************ - * Pre-processor definition - ************************************************************************/ - -/* This value is obtained from user_map.h */ - -#define KINITIALIZE(h,s) ((kminitialize_t)CONFIG_USER_MMINIT)(h,s) - -/************************************************************************ - * Private Types - ************************************************************************/ - -typedef void (*kminitialize_t)(FAR void*, size_t); - -/************************************************************************ - * Private Functions - ************************************************************************/ - -/************************************************************************ - * Public Functions - ************************************************************************/ - -/************************************************************************ - * Name: kmm_initialize - * - * Description: - * This is a simple redirection to the user-space mm_initialize() - * function. - * - * Parameters: - * heap_start - Address of the beginning of the (initial) memory region - * heap_size - The size (in bytes) if the (initial) memory region. - * - * Return Value: - * None - * - * Assumptions: - * 1. mm_initialize() resides in user-space - * 2. The address of the user space mm_initialize() is provided in - * user_map.h - * 3. The user-space mm_initialize() is callable from kernel-space. - * - ************************************************************************/ - -void kmm_initialize(FAR void *heap_start, size_t heap_size) -{ - return KINITIALIZE(heap_start, heap_size); -} - -#endif /* CONFIG_NUTTX_KERNEL && __KERNEL__ */ |