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3eb9473e | 1 | /*++\r |
2 | \r | |
f57387d5 HT |
3 | Copyright (c) 2004 - 2006, Intel Corporation. All rights reserved.<BR>\r |
4 | This program and the accompanying materials \r | |
3eb9473e | 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 | Module Name:\r | |
13 | \r | |
14 | EfiCpuVersion.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Provide cpu version extract considering extended family & model ID.\r | |
19 | --*/\r | |
20 | \r | |
21 | #include "CpuIA32.h"\r | |
22 | \r | |
23 | VOID\r | |
24 | EfiCpuVersion (\r | |
25 | IN OUT UINT16 *FamilyId, OPTIONAL\r | |
26 | IN OUT UINT8 *Model, OPTIONAL\r | |
27 | IN OUT UINT8 *SteppingId, OPTIONAL\r | |
28 | IN OUT UINT8 *Processor OPTIONAL\r | |
29 | )\r | |
30 | /*++\r | |
31 | \r | |
32 | Routine Description:\r | |
33 | Extract CPU detail version infomation\r | |
34 | \r | |
35 | Arguments:\r | |
36 | FamilyId - FamilyId, including ExtendedFamilyId\r | |
37 | Model - Model, including ExtendedModel\r | |
38 | SteppingId - SteppingId\r | |
39 | Processor - Processor\r | |
40 | \r | |
41 | --*/\r | |
42 | {\r | |
43 | EFI_CPUID_REGISTER Register;\r | |
44 | UINT8 TempFamilyId;\r | |
45 | \r | |
46 | EfiCpuid (EFI_CPUID_VERSION_INFO, &Register);\r | |
47 | \r | |
48 | if (SteppingId != NULL) {\r | |
49 | *SteppingId = (UINT8) (Register.RegEax & 0xF);\r | |
50 | }\r | |
51 | \r | |
52 | if (Processor != NULL) {\r | |
53 | *Processor = (UINT8) ((Register.RegEax >> 12) & 0x3);\r | |
54 | }\r | |
55 | \r | |
56 | if (Model != NULL || FamilyId != NULL) {\r | |
57 | TempFamilyId = (UINT8) ((Register.RegEax >> 8) & 0xF);\r | |
58 | \r | |
59 | if (Model != NULL) {\r | |
60 | *Model = (UINT8) ((Register.RegEax >> 4) & 0xF);\r | |
61 | if (TempFamilyId == 0x6 || TempFamilyId == 0xF) {\r | |
8e35b681 | 62 | *Model = (UINT8) (*Model | ((Register.RegEax >> 12) & 0xF0));\r |
3eb9473e | 63 | }\r |
64 | }\r | |
65 | \r | |
66 | if (FamilyId != NULL) {\r | |
67 | *FamilyId = TempFamilyId;\r | |
68 | if (TempFamilyId == 0xF) {\r | |
8e35b681 | 69 | *FamilyId = (UINT8 ) (*FamilyId + (UINT16) ((Register.RegEax >> 20) & 0xFF));\r |
3eb9473e | 70 | }\r |
71 | }\r | |
72 | } \r | |
73 | }\r |