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c8ec22a2 JY |
1 | /** @file\r |
2 | \r | |
d5fb1edf | 3 | Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>\r |
c8ec22a2 JY |
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 | #include <PiPei.h>\r | |
15 | #include <Library/PeiServicesLib.h>\r | |
16 | #include <Library/PeiServicesTablePointerLib.h>\r | |
17 | #include <Library/BaseLib.h>\r | |
18 | #include <Library/BaseMemoryLib.h>\r | |
19 | #include <Library/PcdLib.h>\r | |
20 | #include <Library/DebugLib.h>\r | |
21 | #include <Library/HobLib.h>\r | |
22 | #include <Library/FspSwitchStackLib.h>\r | |
23 | #include <Library/FspCommonLib.h>\r | |
24 | #include <Guid/EventGroup.h>\r | |
25 | #include <FspApi.h>\r | |
26 | #include <Protocol/PciEnumerationComplete.h>\r | |
27 | \r | |
28 | EFI_PEI_PPI_DESCRIPTOR mPeiPostPciEnumerationPpi = {\r | |
29 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
30 | &gEfiPciEnumerationCompleteProtocolGuid,\r | |
31 | NULL\r | |
32 | };\r | |
33 | \r | |
34 | EFI_PEI_PPI_DESCRIPTOR mPeiReadyToBootPpi = {\r | |
35 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
36 | &gEfiEventReadyToBootGuid,\r | |
37 | NULL\r | |
38 | };\r | |
39 | \r | |
40 | \r | |
8e89d9ce | 41 | UINT32 mFspNotifySequence[] = {\r |
c8ec22a2 JY |
42 | EnumInitPhaseAfterPciEnumeration,\r |
43 | EnumInitPhaseReadyToBoot\r | |
44 | };\r | |
45 | \r | |
46 | /**\r | |
47 | Install FSP notification.\r | |
48 | \r | |
8e89d9ce | 49 | @param[in] NotificationCode FSP notification code\r |
c8ec22a2 JY |
50 | \r |
51 | @retval EFI_SUCCESS Notify FSP successfully\r | |
8e89d9ce | 52 | @retval EFI_INVALID_PARAMETER NotificationCode is invalid\r |
c8ec22a2 JY |
53 | \r |
54 | **/\r | |
55 | EFI_STATUS\r | |
56 | EFIAPI\r | |
57 | FspNotificationHandler (\r | |
8e89d9ce | 58 | IN UINT32 NotificationCode\r |
c8ec22a2 JY |
59 | )\r |
60 | {\r | |
61 | EFI_STATUS Status;\r | |
62 | \r | |
63 | Status = EFI_SUCCESS;\r | |
64 | \r | |
8e89d9ce | 65 | switch (NotificationCode) {\r |
c8ec22a2 JY |
66 | case EnumInitPhaseAfterPciEnumeration:\r |
67 | //\r | |
68 | // Do POST PCI initialization if needed\r | |
69 | //\r | |
70 | DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP Post PCI Enumeration ...\n"));\r | |
71 | PeiServicesInstallPpi (&mPeiPostPciEnumerationPpi);\r | |
72 | break;\r | |
73 | \r | |
74 | case EnumInitPhaseReadyToBoot:\r | |
75 | //\r | |
76 | // Ready To Boot\r | |
77 | //\r | |
78 | DEBUG ((DEBUG_INFO| DEBUG_INIT, "FSP Ready To Boot ...\n"));\r | |
79 | PeiServicesInstallPpi (&mPeiReadyToBootPpi);\r | |
80 | break;\r | |
81 | \r | |
82 | default:\r | |
83 | Status = EFI_INVALID_PARAMETER;\r | |
84 | break;\r | |
85 | }\r | |
86 | \r | |
87 | return Status;\r | |
88 | }\r | |
89 | \r | |
90 | /**\r | |
91 | This function transfer control to the ContinuationFunc passed in by the\r | |
9da59186 | 92 | BootLoader.\r |
c8ec22a2 JY |
93 | \r |
94 | **/\r | |
95 | VOID\r | |
96 | EFIAPI\r | |
97 | FspInitDone (\r | |
98 | VOID\r | |
99 | )\r | |
100 | {\r | |
d5fb1edf JY |
101 | FSP_INIT_PARAMS *FspInitParams;\r |
102 | \r | |
103 | if (GetFspApiCallingMode() == 0) {\r | |
9da59186 JY |
104 | //\r |
105 | // FspInit API is used, so jump into the ContinuationFunc\r | |
106 | //\r | |
d5fb1edf JY |
107 | FspInitParams = (FSP_INIT_PARAMS *)GetFspApiParameter ();\r |
108 | \r | |
109 | //\r | |
110 | // Modify the parameters for ContinuationFunc\r | |
111 | //\r | |
112 | SetFspContinuationFuncParameter(EFI_SUCCESS, 0);\r | |
113 | SetFspContinuationFuncParameter((UINT32)GetHobList(), 1);\r | |
114 | \r | |
115 | //\r | |
116 | // Modify the return address to ContinuationFunc\r | |
117 | //\r | |
118 | SetFspApiReturnAddress((UINT32)FspInitParams->ContinuationFunc);\r | |
119 | \r | |
120 | //\r | |
121 | // Give control back to the boot loader framework caller after FspInit is done\r | |
122 | // It is done throught the continuation function\r | |
123 | //\r | |
124 | SetFspMeasurePoint (FSP_PERF_ID_API_FSPINIT_EXIT);\r | |
125 | } else {\r | |
126 | //\r | |
127 | // FspMemoryInit API is used, so return directly\r | |
128 | //\r | |
c8ec22a2 | 129 | \r |
d5fb1edf JY |
130 | //\r |
131 | // This is the end of the FspSiliconInit API\r | |
132 | // Give control back to the boot loader\r | |
133 | //\r | |
134 | DEBUG ((DEBUG_INFO | DEBUG_INIT, "FspSiliconInitApi() - End\n"));\r | |
135 | SetFspApiReturnStatus (EFI_SUCCESS);\r | |
136 | }\r | |
c8ec22a2 | 137 | \r |
c8ec22a2 JY |
138 | Pei2LoaderSwitchStack();\r |
139 | }\r | |
140 | \r | |
141 | /**\r | |
9da59186 JY |
142 | This function handle NotifyPhase API call from the BootLoader.\r |
143 | It gives control back to the BootLoader after it is handled. If the\r | |
c8ec22a2 JY |
144 | Notification code is a ReadyToBoot event, this function will return\r |
145 | and FSP continues the remaining execution until it reaches the DxeIpl.\r | |
146 | \r | |
147 | **/\r | |
148 | VOID\r | |
149 | FspWaitForNotify (\r | |
150 | VOID\r | |
151 | )\r | |
152 | {\r | |
153 | EFI_STATUS Status;\r | |
8e89d9ce JY |
154 | UINT32 NotificationValue;\r |
155 | UINT32 NotificationCount;\r | |
c8ec22a2 JY |
156 | UINT8 Count;\r |
157 | \r | |
8e89d9ce JY |
158 | NotificationCount = 0;\r |
159 | while (NotificationCount < sizeof(mFspNotifySequence) / sizeof(UINT32)) {\r | |
c8ec22a2 | 160 | \r |
8e89d9ce | 161 | Count = (UINT8)((NotificationCount << 1) & 0x07);\r |
c8ec22a2 JY |
162 | SetFspMeasurePoint (FSP_PERF_ID_API_NOTIFY_POSTPCI_ENTRY + Count);\r |
163 | \r | |
8e89d9ce JY |
164 | NotificationValue = ((NOTIFY_PHASE_PARAMS *)(UINTN)GetFspApiParameter ())->Phase;\r |
165 | DEBUG ((DEBUG_INFO, "FSP Got Notification. Notification Value : 0x%08X\n", NotificationValue));\r | |
c8ec22a2 | 166 | \r |
8e89d9ce | 167 | if (mFspNotifySequence[NotificationCount] != NotificationValue) {\r |
c8ec22a2 JY |
168 | //\r |
169 | // Notify code does not follow the predefined order\r | |
170 | //\r | |
d5fb1edf | 171 | DEBUG ((DEBUG_INFO, "Unsupported FSP Notification Value\n"));\r |
c8ec22a2 JY |
172 | SetFspApiReturnStatus(EFI_UNSUPPORTED);\r |
173 | } else {\r | |
174 | //\r | |
175 | // Process Notification and Give control back to the boot loader framework caller\r | |
176 | //\r | |
8e89d9ce | 177 | Status = FspNotificationHandler (NotificationValue);\r |
d5fb1edf | 178 | DEBUG ((DEBUG_INFO, "FSP Notification Handler Returns : 0x%08X\n", Status));\r |
c8ec22a2 JY |
179 | SetFspApiReturnStatus(Status);\r |
180 | if (!EFI_ERROR(Status)) {\r | |
8e89d9ce | 181 | NotificationCount++;\r |
c8ec22a2 | 182 | SetFspApiReturnStatus(EFI_SUCCESS);\r |
8e89d9ce | 183 | if (NotificationValue == EnumInitPhaseReadyToBoot) {\r |
c8ec22a2 JY |
184 | break;\r |
185 | }\r | |
186 | }\r | |
187 | }\r | |
188 | SetFspMeasurePoint (FSP_PERF_ID_API_NOTIFY_POSTPCI_EXIT + Count);\r | |
189 | Pei2LoaderSwitchStack();\r | |
190 | }\r | |
191 | \r | |
192 | //\r | |
193 | // Control goes back to the PEI Core and it dispatches further PEIMs.\r | |
194 | // DXEIPL is the final one to transfer control back to the boot loader.\r | |
195 | //\r | |
196 | }\r | |
197 | \r |