projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | |
| 13 | #include <Library/DebugLib.h>\r | |
| 14 | #include <Library/PcdLib.h>\r | |
| 15 | \r | |
| 16 | #include "ArmLibPrivate.h"\r | |
| 17 | \r | |
| bd6b9799 | 18 | VOID\r |
| 19 | EFIAPI\r | |
| 20 | ArmSetAuxCrBit (\r | |
| 21 | IN UINT32 Bits\r | |
| 22 | )\r | |
| 23 | {\r | |
| 24 | UINT32 val = ArmReadAuxCr();\r | |
| 25 | val |= Bits;\r | |
| 26 | ArmWriteAuxCr(val);\r | |
| 27 | }\r | |
| 28 | \r | |
| 836c3500 | 29 | VOID\r |
| 30 | EFIAPI\r | |
| 31 | ArmUnsetAuxCrBit (\r | |
| 32 | IN UINT32 Bits\r | |
| 33 | )\r | |
| 34 | {\r | |
| 35 | UINT32 val = ArmReadAuxCr();\r | |
| 36 | val &= ~Bits;\r | |
| 37 | ArmWriteAuxCr(val);\r | |
| 38 | }\r | |
| 52d44f77 OM |
39 | \r |
| 40 | //\r | |
| 41 | // Helper functions for accessing CPUACTLR\r | |
| 42 | //\r | |
| 43 | \r | |
| 44 | VOID\r | |
| 45 | EFIAPI\r | |
| 46 | ArmSetCpuActlrBit (\r | |
| 47 | IN UINTN Bits\r | |
| 48 | )\r | |
| 49 | {\r | |
| 50 | UINTN Value;\r | |
| 51 | Value = ArmReadCpuActlr ();\r | |
| 52 | Value |= Bits;\r | |
| 53 | ArmWriteCpuActlr (Value);\r | |
| 54 | }\r | |
| 55 | \r | |
| 56 | VOID\r | |
| 57 | EFIAPI\r | |
| 58 | ArmUnsetCpuActlrBit (\r | |
| 59 | IN UINTN Bits\r | |
| 60 | )\r | |
| 61 | {\r | |
| 62 | UINTN Value;\r | |
| 63 | Value = ArmReadCpuActlr ();\r | |
| 64 | Value &= ~Bits;\r | |
| 65 | ArmWriteCpuActlr (Value);\r | |
| 66 | }\r | |
| fbf658eb AB |
67 | \r |
| 68 | UINTN\r | |
| 69 | EFIAPI\r | |
| 70 | ArmDataCacheLineLength (\r | |
| 71 | VOID\r | |
| 72 | )\r | |
| 73 | {\r | |
| 74 | return 4 << ((ArmCacheInfo () >> 16) & 0xf); // CTR_EL0.DminLine\r | |
| 75 | }\r | |
| 76 | \r | |
| 77 | UINTN\r | |
| 78 | EFIAPI\r | |
| 79 | ArmInstructionCacheLineLength (\r | |
| 80 | VOID\r | |
| 81 | )\r | |
| 82 | {\r | |
| 83 | return 4 << (ArmCacheInfo () & 0xf); // CTR_EL0.IminLine\r | |
| 84 | }\r | |
| c653fc2a AB |
85 | \r |
| 86 | UINTN\r | |
| 87 | EFIAPI\r | |
| 88 | ArmCacheWritebackGranule (\r | |
| 89 | VOID\r | |
| 90 | )\r | |
| 91 | {\r | |
| 92 | UINTN CWG;\r | |
| 93 | \r | |
| 94 | CWG = (ArmCacheInfo () >> 24) & 0xf; // CTR_EL0.CWG\r | |
| 95 | \r | |
| 96 | if (CWG == 0) {\r | |
| 97 | return SIZE_2KB;\r | |
| 98 | }\r | |
| 99 | \r | |
| 100 | return 4 << CWG;\r | |
| 101 | }\r |