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1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
4 | \r\r | |
5 | This program and the accompanying materials are licensed and made available under\r\r | |
6 | the terms and conditions of the BSD License that accompanies this distribution. \r\r | |
7 | The full text of the license may be found at \r\r | |
8 | http://opensource.org/licenses/bsd-license.php. \r\r | |
9 | \r\r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r\r | |
12 | \r\r | |
13 | \r | |
14 | Module Name:\r | |
15 | \r | |
16 | \r | |
17 | MemoryPeim.c\r | |
18 | \r | |
19 | Abstract:\r | |
20 | \r | |
21 | Tiano PEIM to provide the platform support functionality.\r | |
22 | This file implements the Platform Memory Range PPI\r | |
23 | \r | |
24 | --*/\r | |
25 | \r | |
26 | #include "PlatformEarlyInit.h"\r | |
27 | \r | |
28 | //\r | |
29 | // Need min. of 48MB PEI phase\r | |
30 | //\r | |
31 | #define PEI_MIN_MEMORY_SIZE (6 * 0x800000)\r | |
32 | #define PEI_RECOVERY_MIN_MEMORY_SIZE (6 * 0x800000)\r | |
33 | \r | |
34 | //\r | |
35 | // This is the memory needed for PEI to start up DXE.\r | |
36 | //\r | |
37 | // Over-estimating this size will lead to higher fragmentation\r | |
38 | // of main memory. Under-estimation of this will cause catastrophic\r | |
39 | // failure of PEI to load DXE. Generally, the failure may only be\r | |
40 | // realized during capsule updates.\r | |
41 | //\r | |
42 | #define PRERESERVED_PEI_MEMORY ( \\r | |
43 | EFI_SIZE_TO_PAGES (3 * 0x800000) /* PEI Core memory based stack */ \\r | |
44 | )\r | |
45 | \r | |
46 | EFI_MEMORY_TYPE_INFORMATION mDefaultMemoryTypeInformation[] = {\r | |
47 | { EfiACPIReclaimMemory, 0x40 }, // 0x40 pages = 256k for ASL\r | |
48 | { EfiACPIMemoryNVS, 0x100 }, // 0x100 pages = 1 MB for S3, SMM, HII, etc\r | |
49 | { EfiReservedMemoryType, 0x600 }, // 48k for BIOS Reserved\r | |
50 | { EfiMemoryMappedIO, 0 },\r | |
51 | { EfiMemoryMappedIOPortSpace, 0 },\r | |
52 | { EfiPalCode, 0 },\r | |
53 | { EfiRuntimeServicesCode, 0x200 },\r | |
54 | { EfiRuntimeServicesData, 0x100 },\r | |
55 | { EfiLoaderCode, 0x100 },\r | |
56 | { EfiLoaderData, 0x100 },\r | |
57 | { EfiBootServicesCode, 0x800 },\r | |
58 | { EfiBootServicesData, 0x2500},\r | |
59 | { EfiConventionalMemory, 0 },\r | |
60 | { EfiUnusableMemory, 0 },\r | |
61 | { EfiMaxMemoryType, 0 }\r | |
62 | };\r | |
63 | \r | |
64 | STATIC\r | |
65 | EFI_STATUS\r | |
66 | GetMemorySize (\r | |
67 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
68 | OUT UINT64 *LowMemoryLength,\r | |
69 | OUT UINT64 *HighMemoryLength\r | |
70 | );\r | |
71 | \r | |
72 | \r | |
73 | \r | |
74 | EFI_STATUS\r | |
75 | EFIAPI\r | |
76 | SetPeiCacheMode (\r | |
77 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
78 | )\r | |
79 | {\r | |
80 | EFI_STATUS Status;\r | |
81 | PEI_CACHE_PPI *CachePpi;\r | |
82 | \r | |
83 | EFI_BOOT_MODE BootMode;\r | |
84 | UINT64 MemoryLength;\r | |
85 | UINT64 MemOverflow;\r | |
86 | UINT64 MemoryLengthUc;\r | |
87 | UINT64 MaxMemoryLength;\r | |
88 | UINT64 LowMemoryLength;\r | |
89 | UINT64 HighMemoryLength;\r | |
90 | UINT8 Index;\r | |
91 | MTRR_SETTINGS MtrrSetting;\r | |
92 | \r | |
93 | //\r | |
94 | // Load Cache PPI\r | |
95 | //\r | |
96 | Status = (**PeiServices).LocatePpi (\r | |
97 | PeiServices,\r | |
98 | &gPeiCachePpiGuid, // GUID\r | |
99 | 0, // Instance\r | |
100 | NULL, // EFI_PEI_PPI_DESCRIPTOR\r | |
101 | (void **)&CachePpi // PPI\r | |
102 | );\r | |
103 | if (!EFI_ERROR(Status)) {\r | |
104 | //\r | |
105 | // Clear the CAR Settings (Default Cache Type => UC)\r | |
106 | //\r | |
107 | DEBUG ((EFI_D_INFO, "Reset cache attribute and disable CAR. \n"));\r | |
108 | CachePpi->ResetCache(\r | |
109 | (EFI_PEI_SERVICES**)PeiServices,\r | |
110 | CachePpi\r | |
111 | );\r | |
112 | }\r | |
113 | \r | |
114 | \r | |
115 | //\r | |
116 | // Variable initialization\r | |
117 | //\r | |
118 | LowMemoryLength = 0;\r | |
119 | HighMemoryLength = 0;\r | |
120 | MemoryLengthUc = 0;\r | |
121 | \r | |
122 | Status = (*PeiServices)->GetBootMode (\r | |
123 | PeiServices,\r | |
124 | &BootMode\r | |
125 | );\r | |
126 | \r | |
127 | //\r | |
128 | // Determine memory usage\r | |
129 | //\r | |
130 | GetMemorySize (\r | |
131 | PeiServices,\r | |
132 | &LowMemoryLength,\r | |
133 | &HighMemoryLength\r | |
134 | );\r | |
135 | \r | |
136 | LowMemoryLength = (EFI_PHYSICAL_ADDRESS)MmPci32( 0, 0, 2, 0, 0x70);\r | |
137 | LowMemoryLength &= 0xFFF00000ULL;\r | |
138 | \r | |
139 | MaxMemoryLength = LowMemoryLength;\r | |
140 | \r | |
141 | //\r | |
142 | // Round up to nearest 256MB with high memory and 64MB w/o high memory\r | |
143 | //\r | |
144 | if (HighMemoryLength != 0 ) {\r | |
145 | MemOverflow = (LowMemoryLength & 0x0fffffff);\r | |
146 | if (MemOverflow != 0) {\r | |
147 | MaxMemoryLength = LowMemoryLength + (0x10000000 - MemOverflow);\r | |
148 | }\r | |
149 | } else {\r | |
150 | MemOverflow = (LowMemoryLength & 0x03ffffff);\r | |
151 | if (MemOverflow != 0) {\r | |
152 | MaxMemoryLength = LowMemoryLength + (0x4000000 - MemOverflow);\r | |
153 | }\r | |
154 | }\r | |
155 | \r | |
156 | ZeroMem (&MtrrSetting, sizeof(MTRR_SETTINGS));\r | |
157 | for (Index = 0; Index < 2; Index++) {\r | |
158 | MtrrSetting.Fixed.Mtrr[Index]=0x0606060606060606;\r | |
159 | }\r | |
160 | for (Index = 2; Index < 11; Index++) {\r | |
161 | MtrrSetting.Fixed.Mtrr[Index]=0x0505050505050505;\r | |
162 | }\r | |
163 | \r | |
164 | //\r | |
165 | // Cache the flash area to improve the boot performance in PEI phase\r | |
166 | //\r | |
167 | Index = 0;\r | |
168 | MtrrSetting.Variables.Mtrr[0].Base = (FixedPcdGet32 (PcdFlashAreaBaseAddress) | CacheWriteProtected);\r | |
169 | MtrrSetting.Variables.Mtrr[0].Mask = ((~((UINT64)(FixedPcdGet32 (PcdFlashAreaSize) - 1))) & MTRR_LIB_CACHE_VALID_ADDRESS) | MTRR_LIB_CACHE_MTRR_ENABLED;\r | |
170 | Index ++;\r | |
171 | \r | |
172 | MemOverflow =0;\r | |
173 | while (MaxMemoryLength > MemOverflow){\r | |
174 | MtrrSetting.Variables.Mtrr[Index].Base = (MemOverflow & MTRR_LIB_CACHE_VALID_ADDRESS) | CacheWriteBack;\r | |
175 | MemoryLength = MaxMemoryLength - MemOverflow;\r | |
176 | MemoryLength = GetPowerOfTwo64 (MemoryLength);\r | |
177 | MtrrSetting.Variables.Mtrr[Index].Mask = ((~(MemoryLength - 1)) & MTRR_LIB_CACHE_VALID_ADDRESS) | MTRR_LIB_CACHE_MTRR_ENABLED;\r | |
178 | \r | |
179 | MemOverflow += MemoryLength;\r | |
180 | Index++;\r | |
181 | }\r | |
182 | \r | |
183 | MemoryLength = LowMemoryLength;\r | |
184 | \r | |
185 | while (MaxMemoryLength != MemoryLength) {\r | |
186 | MemoryLengthUc = GetPowerOfTwo64 (MaxMemoryLength - MemoryLength);\r | |
187 | \r | |
188 | MtrrSetting.Variables.Mtrr[Index].Base = ((MaxMemoryLength - MemoryLengthUc) & MTRR_LIB_CACHE_VALID_ADDRESS) | CacheUncacheable;\r | |
189 | MtrrSetting.Variables.Mtrr[Index].Mask= ((~(MemoryLengthUc - 1)) & MTRR_LIB_CACHE_VALID_ADDRESS) | MTRR_LIB_CACHE_MTRR_ENABLED;\r | |
190 | MaxMemoryLength -= MemoryLengthUc;\r | |
191 | Index++;\r | |
192 | }\r | |
193 | \r | |
194 | MemOverflow =0x100000000;\r | |
195 | while (HighMemoryLength > 0) {\r | |
196 | MtrrSetting.Variables.Mtrr[Index].Base = (MemOverflow & MTRR_LIB_CACHE_VALID_ADDRESS) | CacheWriteBack;\r | |
197 | MemoryLength = HighMemoryLength;\r | |
198 | MemoryLength = GetPowerOfTwo64 (MemoryLength);\r | |
199 | \r | |
200 | if (MemoryLength > MemOverflow){\r | |
201 | MemoryLength = MemOverflow;\r | |
202 | }\r | |
203 | \r | |
204 | MtrrSetting.Variables.Mtrr[Index].Mask = ((~(MemoryLength - 1)) & MTRR_LIB_CACHE_VALID_ADDRESS) | MTRR_LIB_CACHE_MTRR_ENABLED;\r | |
205 | \r | |
206 | MemOverflow += MemoryLength;\r | |
207 | HighMemoryLength -= MemoryLength;\r | |
208 | Index++;\r | |
209 | }\r | |
210 | \r | |
211 | \r | |
212 | for (Index = 0; Index < MTRR_NUMBER_OF_VARIABLE_MTRR; Index++) {\r | |
213 | if (MtrrSetting.Variables.Mtrr[Index].Base == 0){\r | |
214 | break;\r | |
215 | }\r | |
216 | DEBUG ((EFI_D_INFO, "Base=%lx, Mask=%lx\n",MtrrSetting.Variables.Mtrr[Index].Base ,MtrrSetting.Variables.Mtrr[Index].Mask));\r | |
217 | }\r | |
218 | \r | |
219 | //\r | |
220 | // set FE/E bits for IA32_MTRR_DEF_TYPE\r | |
221 | //\r | |
222 | MtrrSetting.MtrrDefType |= 3 <<10;\r | |
223 | \r | |
224 | MtrrSetAllMtrrs(&MtrrSetting);\r | |
225 | \r | |
226 | \r | |
227 | \r | |
228 | return EFI_SUCCESS;\r | |
229 | }\r | |
230 | \r | |
231 | EFI_STATUS\r | |
232 | EFIAPI\r | |
233 | SetDxeCacheMode (\r | |
234 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
235 | )\r | |
236 | {\r | |
237 | //\r | |
238 | // This is not needed for now.\r | |
239 | //\r | |
240 | return EFI_SUCCESS;\r | |
241 | }\r | |
242 | \r | |
243 | STATIC\r | |
244 | EFI_STATUS\r | |
245 | GetMemorySize (\r | |
246 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
247 | OUT UINT64 *LowMemoryLength,\r | |
248 | OUT UINT64 *HighMemoryLength\r | |
249 | )\r | |
250 | {\r | |
251 | EFI_STATUS Status;\r | |
252 | EFI_PEI_HOB_POINTERS Hob;\r | |
253 | \r | |
254 | *HighMemoryLength = 0;\r | |
255 | *LowMemoryLength = 0x100000;\r | |
256 | \r | |
257 | //\r | |
258 | // Get the HOB list for processing\r | |
259 | //\r | |
260 | Status = (*PeiServices)->GetHobList (PeiServices, (void **)&Hob.Raw);\r | |
261 | if (EFI_ERROR(Status)) {\r | |
262 | return Status;\r | |
263 | }\r | |
264 | \r | |
265 | //\r | |
266 | // Collect memory ranges\r | |
267 | //\r | |
268 | while (!END_OF_HOB_LIST (Hob)) {\r | |
269 | if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r | |
270 | if (Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) {\r | |
271 | //\r | |
272 | // Need memory above 1MB to be collected here\r | |
273 | //\r | |
274 | if (Hob.ResourceDescriptor->PhysicalStart >= 0x100000 &&\r | |
275 | Hob.ResourceDescriptor->PhysicalStart < (EFI_PHYSICAL_ADDRESS) 0x100000000) {\r | |
276 | *LowMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);\r | |
277 | } else if (Hob.ResourceDescriptor->PhysicalStart >= (EFI_PHYSICAL_ADDRESS) 0x100000000) {\r | |
278 | *HighMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);\r | |
279 | }\r | |
280 | }\r | |
281 | }\r | |
282 | Hob.Raw = GET_NEXT_HOB (Hob);\r | |
283 | }\r | |
284 | \r | |
285 | return EFI_SUCCESS;\r | |
286 | }\r | |
287 | \r | |
288 | \r | |
289 | /**\r | |
290 | Publish Memory Type Information.\r | |
291 | \r | |
292 | @param NULL\r | |
293 | \r | |
294 | @retval EFI_SUCCESS Success.\r | |
295 | @retval Others Errors have occurred.\r | |
296 | **/\r | |
297 | \r | |
298 | EFI_STATUS\r | |
299 | EFIAPI\r | |
300 | PublishMemoryTypeInfo (\r | |
301 | void\r | |
302 | )\r | |
303 | {\r | |
304 | EFI_STATUS Status;\r | |
305 | EFI_PEI_READ_ONLY_VARIABLE2_PPI *Variable;\r | |
306 | UINTN DataSize;\r | |
307 | EFI_MEMORY_TYPE_INFORMATION MemoryData[EfiMaxMemoryType + 1];\r | |
308 | \r | |
309 | Status = PeiServicesLocatePpi (\r | |
310 | &gEfiPeiReadOnlyVariable2PpiGuid,\r | |
311 | 0,\r | |
312 | NULL,\r | |
313 | (void **)&Variable\r | |
314 | );\r | |
315 | if (EFI_ERROR(Status)) {\r | |
316 | DEBUG((EFI_D_ERROR, "WARNING: Locating Pei variable failed 0x%x \n", Status));\r | |
317 | DEBUG((EFI_D_ERROR, "Build Hob from default\n"));\r | |
318 | //\r | |
319 | // Build the default GUID'd HOB for DXE\r | |
320 | //\r | |
321 | BuildGuidDataHob (\r | |
322 | &gEfiMemoryTypeInformationGuid,\r | |
323 | mDefaultMemoryTypeInformation,\r | |
324 | sizeof (mDefaultMemoryTypeInformation)\r | |
325 | );\r | |
326 | \r | |
327 | return Status;\r | |
328 | }\r | |
329 | \r | |
330 | \r | |
331 | DataSize = sizeof (MemoryData);\r | |
332 | \r | |
333 | //\r | |
334 | // This variable is saved in BDS stage. Now read it back\r | |
335 | //\r | |
336 | Status = Variable->GetVariable (\r | |
337 | Variable,\r | |
338 | EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,\r | |
339 | &gEfiMemoryTypeInformationGuid,\r | |
340 | NULL,\r | |
341 | &DataSize,\r | |
342 | &MemoryData\r | |
343 | );\r | |
344 | if (EFI_ERROR (Status)) {\r | |
345 | //\r | |
346 | //build default\r | |
347 | //\r | |
348 | DEBUG((EFI_D_ERROR, "Build Hob from default\n"));\r | |
349 | BuildGuidDataHob (\r | |
350 | &gEfiMemoryTypeInformationGuid,\r | |
351 | mDefaultMemoryTypeInformation,\r | |
352 | sizeof (mDefaultMemoryTypeInformation)\r | |
353 | );\r | |
354 | \r | |
355 | } else {\r | |
356 | //\r | |
357 | // Build the GUID'd HOB for DXE from variable\r | |
358 | //\r | |
359 | DEBUG((EFI_D_ERROR, "Build Hob from variable \n"));\r | |
360 | BuildGuidDataHob (\r | |
361 | &gEfiMemoryTypeInformationGuid,\r | |
362 | MemoryData,\r | |
363 | DataSize\r | |
364 | );\r | |
365 | }\r | |
366 | \r | |
367 | return Status;\r | |
368 | }\r | |
369 | \r |