projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| a89fd3a3 ZG |
1 | /** @file\r |
| 2 | Flush the cache is required for most architectures while do capsule\r | |
| 3 | update. It is not support at Runtime.\r | |
| 4 | \r | |
| 5 | Copyright (c) 2018, Linaro, Ltd. All rights reserved.<BR>\r | |
| 6 | Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r | |
| 7 | \r | |
| 8 | This program and the accompanying materials are licensed and made available\r | |
| 9 | under the terms and conditions of the BSD License which accompanies this\r | |
| 10 | distribution. The full text of the license may be found at\r | |
| 11 | http://opensource.org/licenses/bsd-license.php\r | |
| 12 | \r | |
| 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 15 | \r | |
| 16 | **/\r | |
| 17 | \r | |
| 18 | #include "CapsuleService.h"\r | |
| 19 | \r | |
| 20 | #include <Library/CacheMaintenanceLib.h>\r | |
| 21 | \r | |
| 22 | /**\r | |
| 23 | Writes Back a range of data cache lines covering a set of capsules in memory.\r | |
| 24 | \r | |
| 25 | Writes Back the data cache lines specified by ScatterGatherList.\r | |
| 26 | \r | |
| 27 | @param ScatterGatherList Physical address of the data structure that\r | |
| 28 | describes a set of capsules in memory\r | |
| 29 | \r | |
| 30 | **/\r | |
| 31 | VOID\r | |
| 32 | CapsuleCacheWriteBack (\r | |
| 33 | IN EFI_PHYSICAL_ADDRESS ScatterGatherList\r | |
| 34 | )\r | |
| 35 | {\r | |
| 36 | EFI_CAPSULE_BLOCK_DESCRIPTOR *Desc;\r | |
| 37 | \r | |
| 38 | if (!EfiAtRuntime ()) {\r | |
| 39 | Desc = (EFI_CAPSULE_BLOCK_DESCRIPTOR *)(UINTN)ScatterGatherList;\r | |
| 40 | do {\r | |
| 41 | WriteBackDataCacheRange (\r | |
| 42 | (VOID *)(UINTN)Desc,\r | |
| 43 | (UINTN)sizeof (*Desc)\r | |
| 44 | );\r | |
| 45 | \r | |
| 46 | if (Desc->Length > 0) {\r | |
| 47 | WriteBackDataCacheRange (\r | |
| 48 | (VOID *)(UINTN)Desc->Union.DataBlock,\r | |
| 49 | (UINTN)Desc->Length\r | |
| 50 | );\r | |
| 51 | Desc++;\r | |
| 52 | } else if (Desc->Union.ContinuationPointer > 0) {\r | |
| 53 | Desc = (EFI_CAPSULE_BLOCK_DESCRIPTOR *)(UINTN)Desc->Union.ContinuationPointer;\r | |
| 54 | }\r | |
| 55 | } while (Desc->Length > 0 || Desc->Union.ContinuationPointer > 0);\r | |
| 56 | \r | |
| 57 | WriteBackDataCacheRange (\r | |
| 58 | (VOID *)(UINTN)Desc,\r | |
| 59 | (UINTN)sizeof (*Desc)\r | |
| 60 | );\r | |
| 61 | }\r | |
| 62 | }\r | |
| 63 | \r |