1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 /**
33 * @defgroup los_tlb_v6 MMU TLB v6
34 * @ingroup kernel
35 */
36 #ifndef __LOS_TLB_V6_H__
37 #define __LOS_TLB_V6_H__
38
39 #include "los_typedef.h"
40 #include "arm.h"
41
42 #ifdef __cplusplus
43 #if __cplusplus
44 extern "C" {
45 #endif /* __cplusplus */
46 #endif /* __cplusplus */
47
OsArmInvalidateTlbBarrier(VOID)48 STATIC INLINE VOID OsArmInvalidateTlbBarrier(VOID)
49 {
50 #ifdef LOSCFG_KERNEL_SMP
51 OsArmWriteBpiallis(0);
52 #else
53 OsArmWriteBpiall(0);
54 #endif
55 DSB;
56 ISB;
57 }
58
OsArmInvalidateTlbMvaNoBarrier(VADDR_T va)59 STATIC INLINE VOID OsArmInvalidateTlbMvaNoBarrier(VADDR_T va)
60 {
61 #ifdef LOSCFG_KERNEL_SMP
62 OsArmWriteTlbimvaais(va & 0xfffff000);
63 #else
64 OsArmWriteTlbimvaa(va & 0xfffff000);
65 #endif
66 }
67
OsArmInvalidateTlbMvaRangeNoBarrier(VADDR_T start,UINT32 count)68 STATIC INLINE VOID OsArmInvalidateTlbMvaRangeNoBarrier(VADDR_T start, UINT32 count)
69 {
70 UINT32 index = 0;
71
72 while (count > 0) {
73 OsArmInvalidateTlbMvaNoBarrier(start + (index << MMU_DESCRIPTOR_L2_SMALL_SHIFT));
74 index++;
75 count--;
76 }
77 }
78
OsCleanTLB(VOID)79 STATIC INLINE VOID OsCleanTLB(VOID)
80 {
81 UINT32 val = 0;
82 __asm volatile("mcr p15, 0, %0, c8, c7, 0" : : "r"(val));
83 }
84
85 #ifdef __cplusplus
86 #if __cplusplus
87 }
88 #endif /* __cplusplus */
89 #endif /* __cplusplus */
90
91 #endif /* __LOS_TLB_V6_H__ */
92
93