]>
Commit | Line | Data |
---|---|---|
c8ec22a2 JY |
1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>\r | |
4 | This program and the accompanying materials\r | |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php.\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | **/\r | |
13 | \r | |
14 | #ifndef _CACHE_LIB_H_\r | |
15 | #define _CACHE_LIB_H_\r | |
16 | \r | |
17 | //\r | |
18 | // EFI_MEMORY_CACHE_TYPE\r | |
19 | //\r | |
20 | typedef INT32 EFI_MEMORY_CACHE_TYPE;\r | |
21 | \r | |
22 | #define EFI_CACHE_UNCACHEABLE 0\r | |
23 | #define EFI_CACHE_WRITECOMBINING 1\r | |
24 | #define EFI_CACHE_WRITETHROUGH 4\r | |
25 | #define EFI_CACHE_WRITEPROTECTED 5\r | |
26 | #define EFI_CACHE_WRITEBACK 6\r | |
27 | \r | |
28 | /**\r | |
29 | Reset all the MTRRs to a known state.\r | |
30 | \r | |
31 | @retval EFI_SUCCESS All MTRRs have been reset successfully.\r | |
32 | \r | |
33 | **/\r | |
34 | EFI_STATUS\r | |
35 | EFIAPI\r | |
36 | ResetCacheAttributes (\r | |
37 | VOID\r | |
38 | );\r | |
39 | \r | |
40 | /**\r | |
41 | Given the memory range and cache type, programs the MTRRs.\r | |
42 | \r | |
43 | @param[in] MemoryAddress Base Address of Memory to program MTRR.\r | |
44 | @param[in] MemoryLength Length of Memory to program MTRR.\r | |
45 | @param[in] MemoryCacheType Cache Type.\r | |
46 | \r | |
47 | @retval EFI_SUCCESS Mtrr are set successfully.\r | |
48 | @retval EFI_LOAD_ERROR No empty MTRRs to use.\r | |
49 | @retval EFI_INVALID_PARAMETER The input parameter is not valid.\r | |
50 | @retval others An error occurs when setting MTTR.\r | |
51 | \r | |
52 | **/\r | |
53 | EFI_STATUS\r | |
54 | EFIAPI\r | |
55 | SetCacheAttributes (\r | |
56 | IN EFI_PHYSICAL_ADDRESS MemoryAddress,\r | |
57 | IN UINT64 MemoryLength,\r | |
58 | IN EFI_MEMORY_CACHE_TYPE MemoryCacheType\r | |
59 | );\r | |
60 | \r | |
61 | #endif\r | |
62 | \r |