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2ef2b01e A |
1 | /** @file\r |
2 | \r | |
d6ebcab7 | 3 | Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r |
52d44f77 | 4 | Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>\r |
3402aac7 | 5 | \r |
4059386c | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
2ef2b01e A |
7 | \r |
8 | **/\r | |
9 | \r | |
10 | #include <Base.h>\r | |
11 | \r | |
12 | #include <Library/ArmLib.h>\r | |
2ef2b01e A |
13 | \r |
14 | #include "ArmLibPrivate.h"\r | |
15 | \r | |
bd6b9799 | 16 | VOID\r |
17 | EFIAPI\r | |
18 | ArmSetAuxCrBit (\r | |
19 | IN UINT32 Bits\r | |
20 | )\r | |
21 | {\r | |
22 | UINT32 val = ArmReadAuxCr();\r | |
23 | val |= Bits;\r | |
24 | ArmWriteAuxCr(val);\r | |
25 | }\r | |
26 | \r | |
836c3500 | 27 | VOID\r |
28 | EFIAPI\r | |
29 | ArmUnsetAuxCrBit (\r | |
30 | IN UINT32 Bits\r | |
31 | )\r | |
32 | {\r | |
33 | UINT32 val = ArmReadAuxCr();\r | |
34 | val &= ~Bits;\r | |
35 | ArmWriteAuxCr(val);\r | |
36 | }\r | |
52d44f77 OM |
37 | \r |
38 | //\r | |
39 | // Helper functions for accessing CPUACTLR\r | |
40 | //\r | |
41 | \r | |
42 | VOID\r | |
43 | EFIAPI\r | |
44 | ArmSetCpuActlrBit (\r | |
45 | IN UINTN Bits\r | |
46 | )\r | |
47 | {\r | |
48 | UINTN Value;\r | |
49 | Value = ArmReadCpuActlr ();\r | |
50 | Value |= Bits;\r | |
51 | ArmWriteCpuActlr (Value);\r | |
52 | }\r | |
53 | \r | |
54 | VOID\r | |
55 | EFIAPI\r | |
56 | ArmUnsetCpuActlrBit (\r | |
57 | IN UINTN Bits\r | |
58 | )\r | |
59 | {\r | |
60 | UINTN Value;\r | |
61 | Value = ArmReadCpuActlr ();\r | |
62 | Value &= ~Bits;\r | |
63 | ArmWriteCpuActlr (Value);\r | |
64 | }\r | |
fbf658eb AB |
65 | \r |
66 | UINTN\r | |
67 | EFIAPI\r | |
68 | ArmDataCacheLineLength (\r | |
69 | VOID\r | |
70 | )\r | |
71 | {\r | |
72 | return 4 << ((ArmCacheInfo () >> 16) & 0xf); // CTR_EL0.DminLine\r | |
73 | }\r | |
74 | \r | |
75 | UINTN\r | |
76 | EFIAPI\r | |
77 | ArmInstructionCacheLineLength (\r | |
78 | VOID\r | |
79 | )\r | |
80 | {\r | |
81 | return 4 << (ArmCacheInfo () & 0xf); // CTR_EL0.IminLine\r | |
82 | }\r | |
c653fc2a AB |
83 | \r |
84 | UINTN\r | |
85 | EFIAPI\r | |
86 | ArmCacheWritebackGranule (\r | |
87 | VOID\r | |
88 | )\r | |
89 | {\r | |
90 | UINTN CWG;\r | |
91 | \r | |
92 | CWG = (ArmCacheInfo () >> 24) & 0xf; // CTR_EL0.CWG\r | |
93 | \r | |
94 | if (CWG == 0) {\r | |
95 | return SIZE_2KB;\r | |
96 | }\r | |
97 | \r | |
98 | return 4 << CWG;\r | |
99 | }\r |