1 /*
2 * Copyright (c) 2009-2022 Huawei Technologies Co., Ltd. All rights reserved.
3 *
4 * UniProton is licensed under Mulan PSL v2.
5 * You can use this software according to the terms and conditions of the Mulan PSL v2.
6 * You may obtain a copy of Mulan PSL v2 at:
7 * http://license.coscl.org.cn/MulanPSL2
8 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
9 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
10 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
11 * See the Mulan PSL v2 for more details.
12 * Create: 2009-12-22
13 * Description: SC内存算法模块的模块内头文件。
14 */
15 #ifndef PRT_FSCMEM_INTERNAL_H
16 #define PRT_FSCMEM_INTERNAL_H
17
18 #include "prt_fscmem_external.h"
19 #include "prt_cpu_external.h"
20 #include "prt_lib_external.h"
21 #include "../prt_mem_internal.h"
22
23 /*
24 * 模块内宏定义
25 */
26 #define OS_FSC_MEM_PREV_USED 0
27 #define OS_FSC_MEM_USED_MAGIC OS_MEM_HEAD_MAGICWORD
28
29 #define OS_FSC_MEM_SZ2IDX(size) (31 - OsGetLmb1((U32)(size)))
30 #define OS_FSC_MEM_IDX2BIT(idx) (0x80000000UL >> (idx))
31
32 #define OS_FSC_MEM_SIZE_ALIGN OS_MEM_ADDR_ALIGN
33 #define OS_FSC_MEM_MIN_SIZE (OS_FSC_MEM_SLICE_HEAD_SIZE + OS_FSC_MEM_SIZE_ALIGN)
34
35 /*
36 * 模块内全局变量声明
37 */
38
39 /*
40 * 模块内函数声明
41 */
42 extern void *OsFscMemSplit(U8 ptNo, uintptr_t size, uintptr_t align,
43 struct TagFscMemCtrl *fscFreeListHead, U32 *bitMapPtr);
44 extern U32 OsMemPtParaCheck(uintptr_t addr, uintptr_t size, uintptr_t *ptAddr);
45
46 /*
47 * 模块内内联函数定义
48 */
OsFscMemDelete(struct TagFscMemCtrl * currBlk)49 OS_SEC_ALW_INLINE INLINE void OsFscMemDelete(struct TagFscMemCtrl *currBlk)
50 {
51 currBlk->next->prev = currBlk->prev;
52 currBlk->prev->next = currBlk->next;
53 }
54
OsFscMemInsert(struct TagFscMemCtrl * currBlk,struct TagFscMemCtrl * fscFreeList,U32 * bitMapPtr)55 OS_SEC_ALW_INLINE INLINE void OsFscMemInsert(struct TagFscMemCtrl *currBlk,
56 struct TagFscMemCtrl *fscFreeList,
57 U32 *bitMapPtr)
58 {
59 U32 idx = OS_FSC_MEM_SZ2IDX(currBlk->size);
60 struct TagFscMemCtrl *headBlk = &(fscFreeList[idx]);
61
62 *bitMapPtr |= OS_FSC_MEM_IDX2BIT(idx);
63
64 currBlk->prev = headBlk;
65 currBlk->next = headBlk->next;
66 headBlk->next->prev = currBlk;
67 headBlk->next = currBlk;
68 }
69
OsFscMemBlockInit(struct TagFscMemCtrl * memBlk)70 OS_SEC_ALW_INLINE INLINE void OsFscMemBlockInit(struct TagFscMemCtrl *memBlk)
71 {
72 /* 后续考虑整块内存初始化为随机值，当前仅清零控制头 */
73 memBlk->next = NULL;
74 memBlk->size = 0;
75 memBlk->prevSize = 0;
76 memBlk->prev = NULL;
77 }
78
79 #endif /* PRT_FSCMEM_INTERNAL_H */
80