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1 | /*++\r |
2 | \r |
3 | Copyright (c) 2006 - 2007, Intel Corporation \r |
4 | All rights reserved. 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 | Module Name:\r |
13 | \r |
14 | BaseMemoryTest.c\r |
15 | \r |
16 | Abstract:\r |
17 | \r |
18 | The PEI memory test support\r |
19 | \r |
20 | --*/\r |
21 | \r |
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22 | #include <BaseMemoryTest.h>\r |
23 | \r |
24 | static PEI_BASE_MEMORY_TEST_PPI mPeiBaseMemoryTestPpi = { BaseMemoryTest };\r |
25 | \r |
26 | static EFI_PEI_PPI_DESCRIPTOR PpiListPeiBaseMemoryTest = {\r |
27 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r |
28 | &gPeiBaseMemoryTestPpiGuid,\r |
29 | &mPeiBaseMemoryTestPpi\r |
30 | };\r |
31 | \r |
32 | EFI_STATUS\r |
33 | EFIAPI\r |
34 | PeiBaseMemoryTestInit (\r |
35 | IN EFI_FFS_FILE_HEADER *FfsHeader,\r |
36 | IN EFI_PEI_SERVICES **PeiServices\r |
37 | )\r |
38 | /*++\r |
39 | Description:\r |
40 | \r |
41 | Entry point function of BaseMemoryTestInit Peim.\r |
42 | \r |
43 | Arguments:\r |
44 | \r |
45 | PeiServices - General purpose services available to every PEIM.\r |
46 | FfsHeader - Ffs header pointer\r |
47 | \r |
48 | Returns:\r |
49 | \r |
50 | Status - Result of InstallPpi\r |
51 | \r |
52 | --*/ \r |
53 | {\r |
54 | EFI_STATUS Status;\r |
55 | \r |
56 | Status = (**PeiServices).InstallPpi (PeiServices, &PpiListPeiBaseMemoryTest);\r |
57 | \r |
58 | return Status;\r |
59 | }\r |
60 | \r |
61 | EFI_STATUS\r |
62 | EFIAPI\r |
63 | BaseMemoryTest (\r |
64 | IN EFI_PEI_SERVICES **PeiServices,\r |
65 | IN PEI_BASE_MEMORY_TEST_PPI *This,\r |
66 | IN EFI_PHYSICAL_ADDRESS BeginAddress,\r |
67 | IN UINT64 MemoryLength,\r |
68 | IN PEI_MEMORY_TEST_OP Operation,\r |
69 | OUT EFI_PHYSICAL_ADDRESS *ErrorAddress\r |
70 | )\r |
71 | /*++\r |
72 | Description:\r |
73 | \r |
74 | Test base memory.\r |
75 | \r |
76 | Arguments:\r |
77 | \r |
78 | PeiServices - General purpose services available to every PEIM.\r |
79 | This - Pei memory test PPI pointer.\r |
80 | BeginAddress - Beginning of the memory address to be checked.\r |
81 | MemoryLength - Bytes of memory range to be checked.\r |
82 | Operation - Type of memory check operation to be performed.\r |
83 | ErrorAddress - Return the address of the error memory address.\r |
84 | ErrorAddress - Address which has error when checked.\r |
85 | \r |
86 | Returns:\r |
87 | \r |
88 | Status - Result of InstallPpi\r |
89 | \r |
90 | --*/ \r |
91 | {\r |
92 | UINT32 TestPattern;\r |
93 | EFI_PHYSICAL_ADDRESS TempAddress;\r |
94 | UINT32 SpanSize;\r |
95 | \r |
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96 | REPORT_STATUS_CODE (EFI_PROGRESS_CODE, PcdGet32 (PcdStatusCodeValueMemoryTestStarted));\r |
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97 | \r |
98 | TestPattern = TEST_PATTERN;\r |
99 | SpanSize = 0;\r |
100 | \r |
101 | //\r |
102 | // Make sure we don't try and test anything above the max physical address range\r |
103 | //\r |
104 | ASSERT (BeginAddress + MemoryLength < EFI_MAX_ADDRESS);\r |
105 | \r |
106 | switch (Operation) {\r |
107 | case Extensive:\r |
108 | SpanSize = 0x4;\r |
109 | break;\r |
110 | \r |
111 | case Sparse:\r |
112 | case Quick:\r |
113 | SpanSize = COVER_SPAN;\r |
114 | break;\r |
115 | \r |
116 | case Ignore:\r |
117 | goto Done;\r |
118 | break;\r |
119 | }\r |
120 | //\r |
121 | // Write the test pattern into memory range\r |
122 | //\r |
123 | TempAddress = BeginAddress;\r |
124 | while (TempAddress < BeginAddress + MemoryLength) {\r |
125 | (*(UINT32 *) (UINTN) TempAddress) = TestPattern;\r |
126 | TempAddress += SpanSize;\r |
127 | }\r |
128 | //\r |
129 | // Read pattern from memory and compare it\r |
130 | //\r |
131 | TempAddress = BeginAddress;\r |
132 | while (TempAddress < BeginAddress + MemoryLength) {\r |
133 | if ((*(UINT32 *) (UINTN) TempAddress) != TestPattern) {\r |
134 | *ErrorAddress = TempAddress;\r |
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135 | REPORT_STATUS_CODE (EFI_ERROR_CODE | EFI_ERROR_UNRECOVERED, PcdGet32 (PcdStatusCodeValueUncorrectableMemoryError));\r |
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136 | \r |
137 | return EFI_DEVICE_ERROR;\r |
138 | }\r |
139 | \r |
140 | TempAddress += SpanSize;\r |
141 | }\r |
142 | \r |
143 | Done:\r |
144 | return EFI_SUCCESS;\r |
145 | }\r |