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21b404d1 | 1 | /** @file\r |
21b404d1 | 2 | Provides the basic interfaces to abstract a PCI Host Bridge Resource Allocation\r |
3 | \r | |
95d48e82 | 4 | Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>\r |
18c97f53 | 5 | This program and the accompanying materials are\r |
6 | licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
21b404d1 | 12 | \r |
13 | **/ \r | |
14 | \r | |
15 | #include "PciHostBridge.h"\r | |
16 | \r | |
17 | //\r | |
18 | // Support 64 K IO space\r | |
19 | //\r | |
20 | #define RES_IO_BASE 0x1000\r | |
21 | #define RES_IO_LIMIT 0xFFFF\r | |
22 | //\r | |
23 | // Support 4G address space\r | |
24 | //\r | |
25 | #define RES_MEM_BASE_1 0xF8000000\r | |
26 | #define RES_MEM_LIMIT_1 (0xFEC00000 - 1)\r | |
27 | \r | |
28 | //\r | |
29 | // Hard code: Root Bridge Number within the host bridge\r | |
30 | // Root Bridge's attribute\r | |
31 | // Root Bridge's device path\r | |
32 | // Root Bridge's resource appeture\r | |
33 | //\r | |
34 | UINTN RootBridgeNumber[1] = { 1 };\r | |
35 | \r | |
36 | UINT64 RootBridgeAttribute[1][1] = { EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM };\r | |
37 | \r | |
38 | EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath[1][1] = {\r | |
39 | {\r | |
40 | ACPI_DEVICE_PATH,\r | |
41 | ACPI_DP,\r | |
42 | (UINT8) (sizeof(ACPI_HID_DEVICE_PATH)),\r | |
43 | (UINT8) ((sizeof(ACPI_HID_DEVICE_PATH)) >> 8),\r | |
44 | EISA_PNP_ID(0x0A03),\r | |
45 | 0,\r | |
46 | END_DEVICE_PATH_TYPE,\r | |
47 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
48 | END_DEVICE_PATH_LENGTH,\r | |
49 | 0\r | |
50 | }\r | |
51 | };\r | |
52 | \r | |
53 | PCI_ROOT_BRIDGE_RESOURCE_APPETURE mResAppeture[1][1] = {\r | |
cac2ab95 | 54 | {0, 0xff, 0x80000000, 0xffffffff, 0, 0xffff}\r |
21b404d1 | 55 | };\r |
56 | \r | |
57 | EFI_HANDLE mDriverImageHandle;\r | |
58 | \r | |
59 | PCI_HOST_BRIDGE_INSTANCE mPciHostBridgeInstanceTemplate = {\r | |
60 | PCI_HOST_BRIDGE_SIGNATURE, // Signature\r | |
61 | NULL, // HostBridgeHandle\r | |
62 | 0, // RootBridgeNumber\r | |
63 | {NULL, NULL}, // Head\r | |
64 | FALSE, // ResourceSubiteed\r | |
65 | TRUE, // CanRestarted\r | |
66 | {\r | |
67 | NotifyPhase,\r | |
68 | GetNextRootBridge,\r | |
69 | GetAttributes,\r | |
70 | StartBusEnumeration,\r | |
71 | SetBusNumbers,\r | |
72 | SubmitResources,\r | |
73 | GetProposedResources,\r | |
74 | PreprocessController\r | |
75 | }\r | |
76 | };\r | |
77 | \r | |
78 | //\r | |
79 | // Implementation\r | |
80 | //\r | |
18c97f53 | 81 | /**\r |
82 | Entry point of this driver\r | |
83 | \r | |
84 | @param ImageHandle Handle of driver image\r | |
85 | @param SystemTable Point to EFI_SYSTEM_TABLE\r | |
86 | \r | |
87 | @retval EFI_OUT_OF_RESOURCES Can not allocate memory resource\r | |
88 | @retval EFI_DEVICE_ERROR Can not install the protocol instance\r | |
89 | @retval EFI_SUCCESS Success to initialize the Pci host bridge.\r | |
90 | **/\r | |
21b404d1 | 91 | EFI_STATUS\r |
92 | EFIAPI\r | |
93 | InitializePciHostBridge (\r | |
94 | IN EFI_HANDLE ImageHandle,\r | |
95 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
96 | )\r | |
21b404d1 | 97 | {\r |
98 | EFI_STATUS Status;\r | |
99 | UINTN Loop1;\r | |
100 | UINTN Loop2;\r | |
101 | PCI_HOST_BRIDGE_INSTANCE *HostBridge;\r | |
102 | PCI_ROOT_BRIDGE_INSTANCE *PrivateData;\r | |
103 | IN EFI_PHYSICAL_ADDRESS BaseAddress;\r | |
104 | IN UINT64 Length;\r | |
105 | \r | |
106 | mDriverImageHandle = ImageHandle;\r | |
107 | \r | |
108 | //\r | |
109 | // Create Host Bridge Device Handle\r | |
110 | //\r | |
111 | for (Loop1 = 0; Loop1 < HOST_BRIDGE_NUMBER; Loop1++) {\r | |
112 | HostBridge = AllocateCopyPool (sizeof(PCI_HOST_BRIDGE_INSTANCE), &mPciHostBridgeInstanceTemplate);\r | |
113 | if (HostBridge == NULL) {\r | |
114 | return EFI_OUT_OF_RESOURCES;\r | |
115 | }\r | |
116 | \r | |
117 | HostBridge->RootBridgeNumber = RootBridgeNumber[Loop1];\r | |
118 | InitializeListHead (&HostBridge->Head);\r | |
119 | \r | |
120 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
121 | &HostBridge->HostBridgeHandle, \r | |
122 | &gEfiPciHostBridgeResourceAllocationProtocolGuid, &HostBridge->ResAlloc,\r | |
123 | NULL\r | |
124 | );\r | |
125 | if (EFI_ERROR (Status)) {\r | |
126 | FreePool (HostBridge);\r | |
127 | return EFI_DEVICE_ERROR;\r | |
128 | }\r | |
129 | \r | |
130 | //\r | |
131 | // Create Root Bridge Device Handle in this Host Bridge\r | |
132 | //\r | |
133 | \r | |
134 | for (Loop2 = 0; Loop2 < HostBridge->RootBridgeNumber; Loop2++) {\r | |
135 | PrivateData = AllocateZeroPool (sizeof(PCI_ROOT_BRIDGE_INSTANCE));\r | |
136 | if (PrivateData == NULL) {\r | |
137 | return EFI_OUT_OF_RESOURCES;\r | |
138 | }\r | |
139 | \r | |
140 | PrivateData->Signature = PCI_ROOT_BRIDGE_SIGNATURE;\r | |
141 | PrivateData->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)&mEfiPciRootBridgeDevicePath[Loop1][Loop2];\r | |
142 | \r | |
143 | RootBridgeConstructor (\r | |
144 | &PrivateData->Io, \r | |
145 | HostBridge->HostBridgeHandle, \r | |
146 | RootBridgeAttribute[Loop1][Loop2], \r | |
147 | &mResAppeture[Loop1][Loop2]\r | |
148 | );\r | |
149 | \r | |
150 | Status = gBS->InstallMultipleProtocolInterfaces(\r | |
151 | &PrivateData->Handle, \r | |
152 | &gEfiDevicePathProtocolGuid, PrivateData->DevicePath,\r | |
153 | &gEfiPciRootBridgeIoProtocolGuid, &PrivateData->Io,\r | |
154 | NULL\r | |
155 | );\r | |
156 | if (EFI_ERROR (Status)) {\r | |
157 | FreePool(PrivateData);\r | |
158 | return EFI_DEVICE_ERROR;\r | |
159 | }\r | |
160 | \r | |
161 | InsertTailList (&HostBridge->Head, &PrivateData->Link);\r | |
162 | }\r | |
163 | } \r | |
164 | \r | |
165 | Status = gDS->AddIoSpace (\r | |
166 | EfiGcdIoTypeIo, \r | |
167 | RES_IO_BASE, \r | |
168 | RES_IO_LIMIT - RES_IO_BASE + 1\r | |
169 | );\r | |
170 | \r | |
171 | // PCI memory space from 3.75Gbytes->(4GBytes - BIOSFWH local APIC etc)\r | |
172 | Status = gDS->AddMemorySpace (\r | |
173 | EfiGcdMemoryTypeMemoryMappedIo, \r | |
174 | RES_MEM_BASE_1, \r | |
175 | (RES_MEM_LIMIT_1 - RES_MEM_BASE_1 + 1),\r | |
176 | 0\r | |
177 | );\r | |
178 | \r | |
179 | BaseAddress = 0x80000000;\r | |
180 | Length = RES_MEM_BASE_1 - BaseAddress;\r | |
181 | Status = gDS->AddMemorySpace (\r | |
182 | EfiGcdMemoryTypeMemoryMappedIo, \r | |
183 | BaseAddress, \r | |
184 | Length,\r | |
185 | 0\r | |
186 | );\r | |
187 | \r | |
188 | return EFI_SUCCESS;\r | |
189 | }\r | |
190 | \r | |
191 | \r | |
18c97f53 | 192 | /**\r |
193 | These are the notifications from the PCI bus driver that it is about to enter a certain\r | |
194 | phase of the PCI enumeration process.\r | |
195 | \r | |
196 | This member function can be used to notify the host bridge driver to perform specific actions,\r | |
197 | including any chipset-specific initialization, so that the chipset is ready to enter the next phase.\r | |
198 | Eight notification points are defined at this time. See belows:\r | |
199 | EfiPciHostBridgeBeginEnumeration Resets the host bridge PCI apertures and internal data\r | |
200 | structures. The PCI enumerator should issue this notification\r | |
201 | before starting a fresh enumeration process. Enumeration cannot\r | |
202 | be restarted after sending any other notification such as\r | |
203 | EfiPciHostBridgeBeginBusAllocation.\r | |
204 | EfiPciHostBridgeBeginBusAllocation The bus allocation phase is about to begin. No specific action is\r | |
205 | required here. This notification can be used to perform any\r | |
206 | chipset-specific programming.\r | |
207 | EfiPciHostBridgeEndBusAllocation The bus allocation and bus programming phase is complete. No\r | |
208 | specific action is required here. This notification can be used to\r | |
209 | perform any chipset-specific programming.\r | |
210 | EfiPciHostBridgeBeginResourceAllocation\r | |
211 | The resource allocation phase is about to begin. No specific\r | |
212 | action is required here. This notification can be used to perform\r | |
213 | any chipset-specific programming.\r | |
214 | EfiPciHostBridgeAllocateResources Allocates resources per previously submitted requests for all the PCI\r | |
215 | root bridges. These resource settings are returned on the next call to\r | |
216 | GetProposedResources(). Before calling NotifyPhase() with a Phase of\r | |
217 | EfiPciHostBridgeAllocateResource, the PCI bus enumerator is responsible\r | |
218 | for gathering I/O and memory requests for\r | |
219 | all the PCI root bridges and submitting these requests using\r | |
220 | SubmitResources(). This function pads the resource amount\r | |
221 | to suit the root bridge hardware, takes care of dependencies between\r | |
222 | the PCI root bridges, and calls the Global Coherency Domain (GCD)\r | |
223 | with the allocation request. In the case of padding, the allocated range\r | |
224 | could be bigger than what was requested.\r | |
225 | EfiPciHostBridgeSetResources Programs the host bridge hardware to decode previously allocated\r | |
226 | resources (proposed resources) for all the PCI root bridges. After the\r | |
227 | hardware is programmed, reassigning resources will not be supported.\r | |
228 | The bus settings are not affected.\r | |
229 | EfiPciHostBridgeFreeResources Deallocates resources that were previously allocated for all the PCI\r | |
230 | root bridges and resets the I/O and memory apertures to their initial\r | |
231 | state. The bus settings are not affected. If the request to allocate\r | |
232 | resources fails, the PCI enumerator can use this notification to\r | |
233 | deallocate previous resources, adjust the requests, and retry\r | |
234 | allocation.\r | |
235 | EfiPciHostBridgeEndResourceAllocation The resource allocation phase is completed. No specific action is\r | |
236 | required here. This notification can be used to perform any chipsetspecific\r | |
237 | programming.\r | |
238 | \r | |
239 | @param[in] PciResAlloc The instance pointer of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL\r | |
240 | @param[in] Phase The phase during enumeration\r | |
241 | \r | |
242 | @retval EFI_NOT_READY This phase cannot be entered at this time. For example, this error\r | |
243 | is valid for a Phase of EfiPciHostBridgeAllocateResources if\r | |
244 | SubmitResources() has not been called for one or more\r | |
245 | PCI root bridges before this call\r | |
246 | @retval EFI_DEVICE_ERROR Programming failed due to a hardware error. This error is valid\r | |
247 | for a Phase of EfiPciHostBridgeSetResources.\r | |
248 | @retval EFI_INVALID_PARAMETER Invalid phase parameter\r | |
249 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r | |
250 | This error is valid for a Phase of EfiPciHostBridgeAllocateResources if the\r | |
251 | previously submitted resource requests cannot be fulfilled or\r | |
252 | were only partially fulfilled.\r | |
253 | @retval EFI_SUCCESS The notification was accepted without any errors.\r | |
254 | \r | |
255 | **/\r | |
21b404d1 | 256 | EFI_STATUS\r |
257 | EFIAPI\r | |
258 | NotifyPhase(\r | |
259 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r | |
260 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE Phase\r | |
261 | )\r | |
21b404d1 | 262 | {\r |
263 | PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;\r | |
264 | PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;\r | |
265 | PCI_RESOURCE_TYPE Index;\r | |
266 | LIST_ENTRY *List;\r | |
267 | EFI_PHYSICAL_ADDRESS BaseAddress;\r | |
268 | UINT64 AddrLen;\r | |
269 | UINTN BitsOfAlignment;\r | |
270 | EFI_STATUS Status;\r | |
271 | EFI_STATUS ReturnStatus;\r | |
272 | \r | |
273 | HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);\r | |
274 | \r | |
275 | switch (Phase) {\r | |
276 | \r | |
277 | case EfiPciHostBridgeBeginEnumeration:\r | |
278 | if (HostBridgeInstance->CanRestarted) {\r | |
279 | //\r | |
280 | // Reset the Each Root Bridge \r | |
281 | //\r | |
282 | List = HostBridgeInstance->Head.ForwardLink;\r | |
283 | \r | |
284 | while (List != &HostBridgeInstance->Head) {\r | |
285 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
286 | for (Index = TypeIo; Index < TypeMax; Index++) {\r | |
287 | RootBridgeInstance->ResAllocNode[Index].Type = Index;\r | |
288 | RootBridgeInstance->ResAllocNode[Index].Base = 0;\r | |
289 | RootBridgeInstance->ResAllocNode[Index].Length = 0;\r | |
290 | RootBridgeInstance->ResAllocNode[Index].Status = ResNone;\r | |
291 | }\r | |
292 | \r | |
293 | List = List->ForwardLink;\r | |
294 | }\r | |
295 | \r | |
296 | HostBridgeInstance->ResourceSubmited = FALSE;\r | |
297 | HostBridgeInstance->CanRestarted = TRUE;\r | |
298 | } else {\r | |
299 | //\r | |
300 | // Can not restart\r | |
301 | // \r | |
302 | return EFI_NOT_READY;\r | |
303 | } \r | |
304 | break;\r | |
305 | \r | |
306 | case EfiPciHostBridgeBeginBusAllocation:\r | |
307 | //\r | |
308 | // No specific action is required here, can perform any chipset specific programing\r | |
309 | //\r | |
310 | HostBridgeInstance->CanRestarted = FALSE;\r | |
311 | return EFI_SUCCESS;\r | |
312 | break;\r | |
313 | \r | |
314 | case EfiPciHostBridgeEndBusAllocation:\r | |
315 | //\r | |
316 | // No specific action is required here, can perform any chipset specific programing\r | |
317 | //\r | |
318 | //HostBridgeInstance->CanRestarted = FALSE;\r | |
319 | return EFI_SUCCESS;\r | |
320 | break;\r | |
321 | \r | |
322 | case EfiPciHostBridgeBeginResourceAllocation:\r | |
323 | //\r | |
324 | // No specific action is required here, can perform any chipset specific programing\r | |
325 | //\r | |
326 | //HostBridgeInstance->CanRestarted = FALSE;\r | |
327 | return EFI_SUCCESS;\r | |
328 | break;\r | |
329 | \r | |
330 | case EfiPciHostBridgeAllocateResources:\r | |
331 | ReturnStatus = EFI_SUCCESS;\r | |
332 | if (HostBridgeInstance->ResourceSubmited) {\r | |
333 | //\r | |
334 | // Take care of the resource dependencies between the root bridges \r | |
335 | //\r | |
336 | List = HostBridgeInstance->Head.ForwardLink;\r | |
337 | \r | |
338 | while (List != &HostBridgeInstance->Head) {\r | |
339 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
340 | for (Index = TypeIo; Index < TypeBus; Index++) {\r | |
341 | if (RootBridgeInstance->ResAllocNode[Index].Status != ResNone) {\r | |
342 | \r | |
343 | AddrLen = RootBridgeInstance->ResAllocNode[Index].Length;\r | |
344 | \r | |
345 | //\r | |
346 | // Get the number of '1' in Alignment.\r | |
347 | //\r | |
348 | BitsOfAlignment = HighBitSet64 (RootBridgeInstance->ResAllocNode[Index].Alignment) + 1;\r | |
349 | \r | |
350 | switch (Index) {\r | |
351 | \r | |
352 | case TypeIo: \r | |
353 | //\r | |
354 | // It is impossible for this chipset to align 0xFFFF for IO16\r | |
355 | // So clear it\r | |
356 | //\r | |
357 | if (BitsOfAlignment >= 16) {\r | |
358 | BitsOfAlignment = 0;\r | |
359 | }\r | |
360 | \r | |
361 | Status = gDS->AllocateIoSpace (\r | |
362 | EfiGcdAllocateAnySearchBottomUp, \r | |
363 | EfiGcdIoTypeIo, \r | |
364 | BitsOfAlignment,\r | |
365 | AddrLen,\r | |
366 | &BaseAddress,\r | |
367 | mDriverImageHandle,\r | |
368 | NULL\r | |
369 | );\r | |
370 | \r | |
371 | if (!EFI_ERROR (Status)) {\r | |
372 | RootBridgeInstance->ResAllocNode[Index].Base = (UINTN)BaseAddress;\r | |
373 | RootBridgeInstance->ResAllocNode[Index].Status = ResAllocated; \r | |
374 | } else {\r | |
375 | ReturnStatus = Status; \r | |
376 | if (Status != EFI_OUT_OF_RESOURCES) {\r | |
377 | RootBridgeInstance->ResAllocNode[Index].Length = 0;\r | |
378 | }\r | |
379 | }\r | |
380 | \r | |
381 | break;\r | |
382 | \r | |
383 | \r | |
384 | case TypeMem32:\r | |
385 | //\r | |
386 | // It is impossible for this chipset to align 0xFFFFFFFF for Mem32\r | |
387 | // So clear it \r | |
388 | //\r | |
389 | \r | |
390 | if (BitsOfAlignment >= 32) {\r | |
391 | BitsOfAlignment = 0;\r | |
392 | }\r | |
393 | \r | |
394 | Status = gDS->AllocateMemorySpace (\r | |
395 | EfiGcdAllocateAnySearchBottomUp, \r | |
396 | EfiGcdMemoryTypeMemoryMappedIo, \r | |
397 | BitsOfAlignment,\r | |
398 | AddrLen,\r | |
399 | &BaseAddress,\r | |
400 | mDriverImageHandle,\r | |
401 | NULL\r | |
402 | );\r | |
403 | \r | |
404 | if (!EFI_ERROR (Status)) {\r | |
405 | // We were able to allocate the PCI memory\r | |
406 | RootBridgeInstance->ResAllocNode[Index].Base = (UINTN)BaseAddress;\r | |
407 | RootBridgeInstance->ResAllocNode[Index].Status = ResAllocated;\r | |
408 | \r | |
409 | } else {\r | |
410 | // Not able to allocate enough PCI memory\r | |
411 | ReturnStatus = Status; \r | |
412 | \r | |
413 | if (Status != EFI_OUT_OF_RESOURCES) {\r | |
414 | RootBridgeInstance->ResAllocNode[Index].Length = 0;\r | |
415 | } \r | |
416 | ASSERT (FALSE);\r | |
417 | }\r | |
418 | break;\r | |
419 | \r | |
420 | case TypePMem32: \r | |
421 | case TypeMem64: \r | |
422 | case TypePMem64:\r | |
423 | ReturnStatus = EFI_ABORTED;\r | |
424 | break; \r | |
425 | default:\r | |
426 | ASSERT (FALSE);\r | |
427 | break;\r | |
428 | }; //end switch\r | |
429 | }\r | |
430 | }\r | |
431 | \r | |
432 | List = List->ForwardLink;\r | |
433 | }\r | |
434 | \r | |
435 | return ReturnStatus;\r | |
436 | \r | |
437 | } else {\r | |
438 | return EFI_NOT_READY;\r | |
439 | }\r | |
440 | break;\r | |
441 | \r | |
442 | case EfiPciHostBridgeSetResources:\r | |
443 | break;\r | |
444 | \r | |
445 | case EfiPciHostBridgeFreeResources:\r | |
446 | ReturnStatus = EFI_SUCCESS;\r | |
447 | List = HostBridgeInstance->Head.ForwardLink;\r | |
448 | while (List != &HostBridgeInstance->Head) {\r | |
449 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
450 | for (Index = TypeIo; Index < TypeBus; Index++) {\r | |
451 | if (RootBridgeInstance->ResAllocNode[Index].Status == ResAllocated) {\r | |
452 | AddrLen = RootBridgeInstance->ResAllocNode[Index].Length;\r | |
453 | BaseAddress = RootBridgeInstance->ResAllocNode[Index].Base;\r | |
454 | switch (Index) {\r | |
455 | \r | |
456 | case TypeIo: \r | |
457 | Status = gDS->FreeIoSpace (BaseAddress, AddrLen); \r | |
458 | if (EFI_ERROR (Status)) {\r | |
459 | ReturnStatus = Status;\r | |
460 | }\r | |
461 | break;\r | |
462 | \r | |
463 | case TypeMem32:\r | |
464 | Status = gDS->FreeMemorySpace (BaseAddress, AddrLen);\r | |
465 | if (EFI_ERROR (Status)) {\r | |
466 | ReturnStatus = Status;\r | |
467 | }\r | |
468 | break;\r | |
469 | \r | |
470 | case TypePMem32:\r | |
471 | break;\r | |
472 | \r | |
473 | case TypeMem64:\r | |
474 | break;\r | |
475 | \r | |
476 | case TypePMem64:\r | |
477 | break; \r | |
478 | \r | |
479 | default:\r | |
480 | ASSERT (FALSE);\r | |
481 | break;\r | |
482 | \r | |
483 | }; //end switch\r | |
484 | RootBridgeInstance->ResAllocNode[Index].Type = Index;\r | |
485 | RootBridgeInstance->ResAllocNode[Index].Base = 0;\r | |
486 | RootBridgeInstance->ResAllocNode[Index].Length = 0;\r | |
487 | RootBridgeInstance->ResAllocNode[Index].Status = ResNone;\r | |
488 | }\r | |
489 | }\r | |
490 | \r | |
491 | List = List->ForwardLink;\r | |
492 | }\r | |
493 | \r | |
494 | HostBridgeInstance->ResourceSubmited = FALSE;\r | |
495 | HostBridgeInstance->CanRestarted = TRUE; \r | |
496 | return ReturnStatus;\r | |
497 | break;\r | |
498 | \r | |
499 | case EfiPciHostBridgeEndResourceAllocation:\r | |
500 | HostBridgeInstance->CanRestarted = FALSE;\r | |
501 | break;\r | |
502 | \r | |
503 | default:\r | |
504 | return EFI_INVALID_PARAMETER;\r | |
505 | }; // end switch\r | |
506 | \r | |
507 | return EFI_SUCCESS; \r | |
508 | }\r | |
509 | \r | |
18c97f53 | 510 | /**\r |
511 | Return the device handle of the next PCI root bridge that is associated with this Host Bridge.\r | |
512 | \r | |
513 | This function is called multiple times to retrieve the device handles of all the PCI root bridges that\r | |
514 | are associated with this PCI host bridge. Each PCI host bridge is associated with one or more PCI\r | |
515 | root bridges. On each call, the handle that was returned by the previous call is passed into the\r | |
516 | interface, and on output the interface returns the device handle of the next PCI root bridge. The\r | |
517 | caller can use the handle to obtain the instance of the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL\r | |
518 | for that root bridge. When there are no more PCI root bridges to report, the interface returns\r | |
519 | EFI_NOT_FOUND. A PCI enumerator must enumerate the PCI root bridges in the order that they\r | |
520 | are returned by this function.\r | |
521 | For D945 implementation, there is only one root bridge in PCI host bridge.\r | |
522 | \r | |
523 | @param[in] This The instance pointer of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL\r | |
524 | @param[in][out] RootBridgeHandle Returns the device handle of the next PCI root bridge.\r | |
525 | \r | |
526 | @retval EFI_SUCCESS If parameter RootBridgeHandle = NULL, then return the first Rootbridge handle of the\r | |
527 | specific Host bridge and return EFI_SUCCESS. \r | |
528 | @retval EFI_NOT_FOUND Can not find the any more root bridge in specific host bridge.\r | |
529 | @retval EFI_INVALID_PARAMETER RootBridgeHandle is not an EFI_HANDLE that was\r | |
530 | returned on a previous call to GetNextRootBridge().\r | |
531 | **/\r | |
21b404d1 | 532 | EFI_STATUS\r |
533 | EFIAPI\r | |
534 | GetNextRootBridge(\r | |
535 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r | |
536 | IN OUT EFI_HANDLE *RootBridgeHandle\r | |
537 | )\r | |
21b404d1 | 538 | {\r |
539 | BOOLEAN NoRootBridge; \r | |
540 | LIST_ENTRY *List; \r | |
541 | PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;\r | |
542 | PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;\r | |
543 | \r | |
544 | NoRootBridge = TRUE;\r | |
545 | HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);\r | |
546 | List = HostBridgeInstance->Head.ForwardLink;\r | |
547 | \r | |
548 | \r | |
549 | while (List != &HostBridgeInstance->Head) {\r | |
550 | NoRootBridge = FALSE;\r | |
551 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
552 | if (*RootBridgeHandle == NULL) {\r | |
553 | //\r | |
554 | // Return the first Root Bridge Handle of the Host Bridge\r | |
555 | //\r | |
556 | *RootBridgeHandle = RootBridgeInstance->Handle;\r | |
557 | return EFI_SUCCESS;\r | |
558 | } else {\r | |
559 | if (*RootBridgeHandle == RootBridgeInstance->Handle) {\r | |
560 | //\r | |
561 | // Get next if have\r | |
562 | //\r | |
563 | List = List->ForwardLink;\r | |
564 | if (List!=&HostBridgeInstance->Head) {\r | |
565 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
566 | *RootBridgeHandle = RootBridgeInstance->Handle;\r | |
567 | return EFI_SUCCESS; \r | |
568 | } else {\r | |
569 | return EFI_NOT_FOUND;\r | |
570 | }\r | |
571 | }\r | |
572 | }\r | |
573 | \r | |
574 | List = List->ForwardLink;\r | |
575 | } //end while\r | |
576 | \r | |
577 | if (NoRootBridge) {\r | |
578 | return EFI_NOT_FOUND;\r | |
579 | } else {\r | |
580 | return EFI_INVALID_PARAMETER;\r | |
581 | }\r | |
582 | }\r | |
583 | \r | |
18c97f53 | 584 | /**\r |
585 | Returns the allocation attributes of a PCI root bridge.\r | |
586 | \r | |
587 | The function returns the allocation attributes of a specific PCI root bridge. The attributes can vary\r | |
588 | from one PCI root bridge to another. These attributes are different from the decode-related\r | |
589 | attributes that are returned by the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.GetAttributes() member function. The\r | |
590 | RootBridgeHandle parameter is used to specify the instance of the PCI root bridge. The device\r | |
591 | handles of all the root bridges that are associated with this host bridge must be obtained by calling\r | |
592 | GetNextRootBridge(). The attributes are static in the sense that they do not change during or\r | |
593 | after the enumeration process. The hardware may provide mechanisms to change the attributes on\r | |
594 | the fly, but such changes must be completed before EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL is \r | |
595 | installed. The permitted values of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ATTRIBUTES are defined in\r | |
596 | "Related Definitions" below. The caller uses these attributes to combine multiple resource requests.\r | |
597 | For example, if the flag EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM is set, the PCI bus enumerator needs to \r | |
598 | include requests for the prefetchable memory in the nonprefetchable memory pool and not request any \r | |
599 | prefetchable memory.\r | |
600 | Attribute Description\r | |
601 | ------------------------------------ ----------------------------------------------------------------------\r | |
602 | EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM If this bit is set, then the PCI root bridge does not support separate\r | |
603 | windows for nonprefetchable and prefetchable memory. A PCI bus\r | |
604 | driver needs to include requests for prefetchable memory in the\r | |
605 | nonprefetchable memory pool.\r | |
606 | \r | |
607 | EFI_PCI_HOST_BRIDGE_MEM64_DECODE If this bit is set, then the PCI root bridge supports 64-bit memory\r | |
608 | windows. If this bit is not set, the PCI bus driver needs to include\r | |
609 | requests for a 64-bit memory address in the corresponding 32-bit\r | |
610 | memory pool.\r | |
611 | \r | |
612 | @param[in] This The instance pointer of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL\r | |
613 | @param[in] RootBridgeHandle The device handle of the PCI root bridge in which the caller is interested. Type\r | |
614 | EFI_HANDLE is defined in InstallProtocolInterface() in the UEFI 2.0 Specification.\r | |
615 | @param[out] Attributes The pointer to attribte of root bridge, it is output parameter\r | |
616 | \r | |
617 | @retval EFI_INVALID_PARAMETER Attribute pointer is NULL\r | |
618 | @retval EFI_INVALID_PARAMETER RootBridgehandle is invalid.\r | |
619 | @retval EFI_SUCCESS Success to get attribute of interested root bridge.\r | |
620 | \r | |
621 | **/\r | |
21b404d1 | 622 | EFI_STATUS\r |
623 | EFIAPI\r | |
624 | GetAttributes(\r | |
625 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r | |
626 | IN EFI_HANDLE RootBridgeHandle,\r | |
627 | OUT UINT64 *Attributes\r | |
628 | )\r | |
21b404d1 | 629 | {\r |
630 | LIST_ENTRY *List; \r | |
631 | PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;\r | |
632 | PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;\r | |
633 | \r | |
634 | if (Attributes == NULL) {\r | |
635 | return EFI_INVALID_PARAMETER;\r | |
636 | }\r | |
637 | \r | |
638 | HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);\r | |
639 | List = HostBridgeInstance->Head.ForwardLink;\r | |
640 | \r | |
641 | while (List != &HostBridgeInstance->Head) {\r | |
642 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
643 | if (RootBridgeHandle == RootBridgeInstance->Handle) {\r | |
644 | *Attributes = RootBridgeInstance->RootBridgeAttrib;\r | |
645 | return EFI_SUCCESS;\r | |
646 | }\r | |
647 | List = List->ForwardLink;\r | |
648 | }\r | |
649 | \r | |
650 | //\r | |
651 | // RootBridgeHandle is not an EFI_HANDLE \r | |
652 | // that was returned on a previous call to GetNextRootBridge()\r | |
653 | //\r | |
654 | return EFI_INVALID_PARAMETER;\r | |
655 | }\r | |
656 | \r | |
18c97f53 | 657 | /**\r |
658 | Sets up the specified PCI root bridge for the bus enumeration process.\r | |
659 | \r | |
660 | This member function sets up the root bridge for bus enumeration and returns the PCI bus range\r | |
661 | over which the search should be performed in ACPI 2.0 resource descriptor format.\r | |
662 | \r | |
663 | @param[in] This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance.\r | |
664 | @param[in] RootBridgeHandle The PCI Root Bridge to be set up.\r | |
665 | @param[out] Configuration Pointer to the pointer to the PCI bus resource descriptor.\r | |
666 | \r | |
667 | @retval EFI_INVALID_PARAMETER Invalid Root bridge's handle\r | |
668 | @retval EFI_OUT_OF_RESOURCES Fail to allocate ACPI resource descriptor tag.\r | |
669 | @retval EFI_SUCCESS Sucess to allocate ACPI resource descriptor.\r | |
670 | \r | |
671 | **/\r | |
21b404d1 | 672 | EFI_STATUS\r |
673 | EFIAPI\r | |
674 | StartBusEnumeration(\r | |
675 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r | |
676 | IN EFI_HANDLE RootBridgeHandle,\r | |
677 | OUT VOID **Configuration\r | |
678 | )\r | |
21b404d1 | 679 | {\r |
680 | LIST_ENTRY *List; \r | |
681 | PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;\r | |
682 | PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;\r | |
683 | VOID *Buffer;\r | |
684 | UINT8 *Temp;\r | |
685 | UINT64 BusStart;\r | |
686 | UINT64 BusEnd;\r | |
687 | \r | |
688 | HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);\r | |
689 | List = HostBridgeInstance->Head.ForwardLink;\r | |
690 | \r | |
691 | while (List != &HostBridgeInstance->Head) {\r | |
692 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
693 | if (RootBridgeHandle == RootBridgeInstance->Handle) {\r | |
694 | //\r | |
695 | // Set up the Root Bridge for Bus Enumeration\r | |
696 | //\r | |
697 | BusStart = RootBridgeInstance->BusBase;\r | |
698 | BusEnd = RootBridgeInstance->BusLimit;\r | |
699 | //\r | |
700 | // Program the Hardware(if needed) if error return EFI_DEVICE_ERROR\r | |
701 | //\r | |
702 | \r | |
703 | Buffer = AllocatePool (sizeof(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) + sizeof(EFI_ACPI_END_TAG_DESCRIPTOR));\r | |
704 | if (Buffer == NULL) {\r | |
705 | return EFI_OUT_OF_RESOURCES;\r | |
706 | }\r | |
707 | \r | |
708 | Temp = (UINT8 *)Buffer;\r | |
709 | \r | |
710 | ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->Desc = 0x8A;\r | |
711 | ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->Len = 0x2B;\r | |
712 | ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->ResType = 2;\r | |
713 | ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->GenFlag = 0; \r | |
714 | ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->SpecificFlag = 0;\r | |
715 | ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->AddrSpaceGranularity = 0;\r | |
716 | ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->AddrRangeMin = BusStart;\r | |
717 | ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->AddrRangeMax = 0;\r | |
718 | ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->AddrTranslationOffset = 0; \r | |
719 | ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->AddrLen = BusEnd - BusStart + 1;\r | |
720 | \r | |
721 | Temp = Temp + sizeof(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR);\r | |
722 | ((EFI_ACPI_END_TAG_DESCRIPTOR *)Temp)->Desc = 0x79; \r | |
723 | ((EFI_ACPI_END_TAG_DESCRIPTOR *)Temp)->Checksum = 0x0;\r | |
724 | \r | |
725 | *Configuration = Buffer; \r | |
726 | return EFI_SUCCESS;\r | |
727 | }\r | |
728 | List = List->ForwardLink;\r | |
729 | }\r | |
730 | \r | |
731 | return EFI_INVALID_PARAMETER;\r | |
732 | }\r | |
733 | \r | |
18c97f53 | 734 | /**\r |
735 | Programs the PCI root bridge hardware so that it decodes the specified PCI bus range.\r | |
736 | \r | |
737 | This member function programs the specified PCI root bridge to decode the bus range that is\r | |
738 | specified by the input parameter Configuration.\r | |
739 | The bus range information is specified in terms of the ACPI 2.0 resource descriptor format.\r | |
740 | \r | |
741 | @param[in] This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r | |
742 | @param[in] RootBridgeHandle The PCI Root Bridge whose bus range is to be programmed\r | |
743 | @param[in] Configuration The pointer to the PCI bus resource descriptor\r | |
744 | \r | |
745 | @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.\r | |
746 | @retval EFI_INVALID_PARAMETER Configuration is NULL.\r | |
747 | @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI 2.0 resource descriptor.\r | |
748 | @retval EFI_INVALID_PARAMETER Configuration does not include a valid ACPI 2.0 bus resource descriptor.\r | |
749 | @retval EFI_INVALID_PARAMETER Configuration includes valid ACPI 2.0 resource descriptors other than \r | |
750 | bus descriptors.\r | |
751 | @retval EFI_INVALID_PARAMETER Configuration contains one or more invalid ACPI resource descriptors.\r | |
752 | @retval EFI_INVALID_PARAMETER "Address Range Minimum" is invalid for this root bridge.\r | |
753 | @retval EFI_INVALID_PARAMETER "Address Range Length" is invalid for this root bridge.\r | |
754 | @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.\r | |
755 | @retval EFI_SUCCESS The bus range for the PCI root bridge was programmed.\r | |
756 | \r | |
757 | **/\r | |
21b404d1 | 758 | EFI_STATUS\r |
759 | EFIAPI\r | |
760 | SetBusNumbers(\r | |
761 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r | |
762 | IN EFI_HANDLE RootBridgeHandle,\r | |
763 | IN VOID *Configuration\r | |
764 | )\r | |
21b404d1 | 765 | {\r |
766 | LIST_ENTRY *List; \r | |
767 | PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;\r | |
768 | PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;\r | |
769 | UINT8 *Ptr;\r | |
770 | UINTN BusStart;\r | |
771 | UINTN BusEnd;\r | |
772 | UINTN BusLen;\r | |
773 | \r | |
774 | if (Configuration == NULL) {\r | |
775 | return EFI_INVALID_PARAMETER;\r | |
776 | }\r | |
777 | \r | |
778 | Ptr = Configuration;\r | |
779 | \r | |
780 | //\r | |
781 | // Check the Configuration is valid\r | |
782 | //\r | |
783 | if(*Ptr != ACPI_ADDRESS_SPACE_DESCRIPTOR) {\r | |
784 | return EFI_INVALID_PARAMETER;\r | |
785 | }\r | |
786 | \r | |
787 | if (((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Ptr)->ResType != 2) {\r | |
788 | return EFI_INVALID_PARAMETER;\r | |
789 | }\r | |
790 | \r | |
791 | Ptr += sizeof(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR);\r | |
792 | if (*Ptr != ACPI_END_TAG_DESCRIPTOR) {\r | |
793 | return EFI_INVALID_PARAMETER;\r | |
794 | }\r | |
795 | \r | |
796 | HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);\r | |
797 | List = HostBridgeInstance->Head.ForwardLink;\r | |
798 | \r | |
799 | Ptr = Configuration;\r | |
800 | \r | |
801 | while (List != &HostBridgeInstance->Head) {\r | |
802 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
803 | if (RootBridgeHandle == RootBridgeInstance->Handle) {\r | |
804 | BusStart = (UINTN)((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Ptr)->AddrRangeMin;\r | |
805 | BusLen = (UINTN)((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Ptr)->AddrLen;\r | |
806 | BusEnd = BusStart + BusLen - 1;\r | |
807 | \r | |
808 | if (BusStart > BusEnd) {\r | |
809 | return EFI_INVALID_PARAMETER;\r | |
810 | }\r | |
811 | \r | |
812 | if ((BusStart < RootBridgeInstance->BusBase) || (BusEnd > RootBridgeInstance->BusLimit)) {\r | |
813 | return EFI_INVALID_PARAMETER;\r | |
814 | }\r | |
815 | \r | |
816 | //\r | |
817 | // Update the Bus Range\r | |
818 | //\r | |
819 | RootBridgeInstance->ResAllocNode[TypeBus].Base = BusStart;\r | |
820 | RootBridgeInstance->ResAllocNode[TypeBus].Length = BusLen;\r | |
821 | RootBridgeInstance->ResAllocNode[TypeBus].Status = ResAllocated;\r | |
822 | \r | |
823 | //\r | |
824 | // Program the Root Bridge Hardware\r | |
825 | //\r | |
826 | \r | |
827 | return EFI_SUCCESS;\r | |
828 | }\r | |
829 | \r | |
830 | List = List->ForwardLink;\r | |
831 | }\r | |
832 | \r | |
833 | return EFI_INVALID_PARAMETER;\r | |
834 | }\r | |
835 | \r | |
836 | \r | |
18c97f53 | 837 | /**\r |
838 | Submits the I/O and memory resource requirements for the specified PCI root bridge.\r | |
839 | \r | |
840 | This function is used to submit all the I/O and memory resources that are required by the specified\r | |
841 | PCI root bridge. The input parameter Configuration is used to specify the following:\r | |
842 | - The various types of resources that are required\r | |
843 | - The associated lengths in terms of ACPI 2.0 resource descriptor format\r | |
844 | \r | |
845 | @param[in] This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL instance.\r | |
846 | @param[in] RootBridgeHandle The PCI root bridge whose I/O and memory resource requirements are being submitted.\r | |
847 | @param[in] Configuration The pointer to the PCI I/O and PCI memory resource descriptor.\r | |
848 | \r | |
849 | @retval EFI_SUCCESS The I/O and memory resource requests for a PCI root bridge were accepted.\r | |
850 | @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.\r | |
851 | @retval EFI_INVALID_PARAMETER Configuration is NULL.\r | |
852 | @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI 2.0 resource descriptor.\r | |
853 | @retval EFI_INVALID_PARAMETER Configuration includes requests for one or more resource types that are \r | |
854 | not supported by this PCI root bridge. This error will happen if the caller \r | |
855 | did not combine resources according to Attributes that were returned by\r | |
856 | GetAllocAttributes().\r | |
857 | @retval EFI_INVALID_PARAMETER Address Range Maximum" is invalid.\r | |
858 | @retval EFI_INVALID_PARAMETER "Address Range Length" is invalid for this PCI root bridge.\r | |
859 | @retval EFI_INVALID_PARAMETER "Address Space Granularity" is invalid for this PCI root bridge.\r | |
860 | \r | |
861 | **/\r | |
21b404d1 | 862 | EFI_STATUS\r |
863 | EFIAPI\r | |
864 | SubmitResources(\r | |
865 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r | |
866 | IN EFI_HANDLE RootBridgeHandle,\r | |
867 | IN VOID *Configuration\r | |
868 | )\r | |
21b404d1 | 869 | {\r |
870 | LIST_ENTRY *List; \r | |
871 | PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;\r | |
872 | PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;\r | |
873 | UINT8 *Temp;\r | |
874 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *ptr;\r | |
875 | UINT64 AddrLen;\r | |
876 | UINT64 Alignment;\r | |
877 | \r | |
878 | //\r | |
879 | // Check the input parameter: Configuration\r | |
880 | //\r | |
881 | if (Configuration == NULL) {\r | |
882 | return EFI_INVALID_PARAMETER;\r | |
883 | }\r | |
884 | \r | |
885 | HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);\r | |
886 | List = HostBridgeInstance->Head.ForwardLink;\r | |
887 | \r | |
888 | Temp = (UINT8 *)Configuration;\r | |
889 | while ( *Temp == 0x8A) { \r | |
890 | Temp += sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) ;\r | |
891 | }\r | |
892 | if (*Temp != 0x79) {\r | |
893 | return EFI_INVALID_PARAMETER;\r | |
894 | }\r | |
895 | \r | |
896 | Temp = (UINT8 *)Configuration;\r | |
897 | while (List != &HostBridgeInstance->Head) {\r | |
898 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
899 | if (RootBridgeHandle == RootBridgeInstance->Handle) {\r | |
900 | while ( *Temp == 0x8A) {\r | |
901 | ptr = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Temp ;\r | |
902 | \r | |
903 | //\r | |
904 | // Check Address Length\r | |
905 | //\r | |
906 | if (ptr->AddrLen > 0xffffffff) {\r | |
907 | return EFI_INVALID_PARAMETER;\r | |
908 | }\r | |
909 | \r | |
910 | //\r | |
911 | // Check address range alignment\r | |
912 | //\r | |
913 | if (ptr->AddrRangeMax >= 0xffffffff || ptr->AddrRangeMax != (GetPowerOfTwo64 (ptr->AddrRangeMax + 1) - 1)) {\r | |
914 | return EFI_INVALID_PARAMETER;\r | |
915 | }\r | |
916 | \r | |
917 | switch (ptr->ResType) {\r | |
918 | \r | |
919 | case 0:\r | |
920 | \r | |
921 | //\r | |
922 | // Check invalid Address Sapce Granularity\r | |
923 | //\r | |
924 | if (ptr->AddrSpaceGranularity != 32) {\r | |
925 | return EFI_INVALID_PARAMETER;\r | |
926 | }\r | |
927 | \r | |
928 | //\r | |
929 | // check the memory resource request is supported by PCI root bridge\r | |
930 | //\r | |
931 | if (RootBridgeInstance->RootBridgeAttrib == EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM &&\r | |
932 | ptr->SpecificFlag == 0x06) {\r | |
933 | return EFI_INVALID_PARAMETER;\r | |
934 | }\r | |
935 | \r | |
936 | AddrLen = ptr->AddrLen;\r | |
937 | Alignment = ptr->AddrRangeMax;\r | |
938 | if (ptr->AddrSpaceGranularity == 32) {\r | |
939 | if (ptr->SpecificFlag == 0x06) {\r | |
940 | //\r | |
941 | // Apply from GCD\r | |
942 | //\r | |
943 | RootBridgeInstance->ResAllocNode[TypePMem32].Status = ResSubmitted;\r | |
944 | } else {\r | |
945 | RootBridgeInstance->ResAllocNode[TypeMem32].Length = AddrLen;\r | |
946 | RootBridgeInstance->ResAllocNode[TypeMem32].Alignment = Alignment;\r | |
947 | RootBridgeInstance->ResAllocNode[TypeMem32].Status = ResRequested; \r | |
948 | HostBridgeInstance->ResourceSubmited = TRUE;\r | |
949 | }\r | |
950 | }\r | |
951 | \r | |
952 | if (ptr->AddrSpaceGranularity == 64) {\r | |
953 | if (ptr->SpecificFlag == 0x06) {\r | |
954 | RootBridgeInstance->ResAllocNode[TypePMem64].Status = ResSubmitted;\r | |
955 | } else {\r | |
956 | RootBridgeInstance->ResAllocNode[TypeMem64].Status = ResSubmitted;\r | |
957 | }\r | |
958 | }\r | |
959 | break;\r | |
960 | \r | |
961 | case 1:\r | |
962 | AddrLen = (UINTN)ptr->AddrLen;\r | |
963 | Alignment = (UINTN)ptr->AddrRangeMax;\r | |
964 | RootBridgeInstance->ResAllocNode[TypeIo].Length = AddrLen;\r | |
965 | RootBridgeInstance->ResAllocNode[TypeIo].Alignment = Alignment;\r | |
966 | RootBridgeInstance->ResAllocNode[TypeIo].Status = ResRequested;\r | |
967 | HostBridgeInstance->ResourceSubmited = TRUE; \r | |
968 | break;\r | |
969 | \r | |
970 | default:\r | |
971 | break;\r | |
972 | };\r | |
973 | \r | |
974 | Temp += sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) ;\r | |
975 | } \r | |
976 | \r | |
977 | return EFI_SUCCESS;\r | |
978 | }\r | |
979 | \r | |
980 | List = List->ForwardLink;\r | |
981 | }\r | |
982 | \r | |
983 | return EFI_INVALID_PARAMETER;\r | |
984 | }\r | |
985 | \r | |
18c97f53 | 986 | /**\r |
987 | Returns the proposed resource settings for the specified PCI root bridge.\r | |
988 | \r | |
989 | This member function returns the proposed resource settings for the specified PCI root bridge. The\r | |
990 | proposed resource settings are prepared when NotifyPhase() is called with a Phase of\r | |
991 | EfiPciHostBridgeAllocateResources. The output parameter Configuration\r | |
992 | specifies the following:\r | |
993 | - The various types of resources, excluding bus resources, that are allocated\r | |
994 | - The associated lengths in terms of ACPI 2.0 resource descriptor format\r | |
995 | \r | |
996 | @param[in] This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL instance.\r | |
997 | @param[in] RootBridgeHandle The PCI root bridge handle. Type EFI_HANDLE is defined in InstallProtocolInterface() in the UEFI 2.0 Specification.\r | |
998 | @param[out] Configuration The pointer to the pointer to the PCI I/O and memory resource descriptor.\r | |
999 | \r | |
1000 | @retval EFI_SUCCESS The requested parameters were returned.\r | |
1001 | @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.\r | |
1002 | @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.\r | |
1003 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r | |
1004 | \r | |
1005 | **/\r | |
21b404d1 | 1006 | EFI_STATUS\r |
1007 | EFIAPI\r | |
1008 | GetProposedResources(\r | |
1009 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r | |
1010 | IN EFI_HANDLE RootBridgeHandle,\r | |
1011 | OUT VOID **Configuration\r | |
1012 | )\r | |
21b404d1 | 1013 | {\r |
1014 | LIST_ENTRY *List; \r | |
1015 | PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;\r | |
1016 | PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;\r | |
1017 | UINTN Index;\r | |
1018 | UINTN Number; \r | |
1019 | VOID *Buffer; \r | |
1020 | UINT8 *Temp;\r | |
1021 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *ptr;\r | |
1022 | UINT64 ResStatus;\r | |
1023 | \r | |
1024 | Buffer = NULL;\r | |
1025 | Number = 0;\r | |
1026 | //\r | |
1027 | // Get the Host Bridge Instance from the resource allocation protocol\r | |
1028 | //\r | |
1029 | HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);\r | |
1030 | List = HostBridgeInstance->Head.ForwardLink;\r | |
1031 | \r | |
1032 | //\r | |
1033 | // Enumerate the root bridges in this host bridge\r | |
1034 | //\r | |
1035 | while (List != &HostBridgeInstance->Head) {\r | |
1036 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
1037 | if (RootBridgeHandle == RootBridgeInstance->Handle) {\r | |
1038 | for (Index = 0; Index < TypeBus; Index ++) {\r | |
1039 | if (RootBridgeInstance->ResAllocNode[Index].Status != ResNone) {\r | |
1040 | Number ++;\r | |
1041 | } \r | |
1042 | }\r | |
1043 | \r | |
1044 | if (Number == 0) {\r | |
1045 | return EFI_INVALID_PARAMETER;\r | |
1046 | }\r | |
1047 | \r | |
1048 | Buffer = AllocateZeroPool (Number * sizeof(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) + sizeof(EFI_ACPI_END_TAG_DESCRIPTOR));\r | |
1049 | if (Buffer == NULL) {\r | |
1050 | return EFI_OUT_OF_RESOURCES;\r | |
1051 | }\r | |
1052 | \r | |
1053 | Temp = Buffer;\r | |
1054 | for (Index = 0; Index < TypeBus; Index ++) {\r | |
1055 | if (RootBridgeInstance->ResAllocNode[Index].Status != ResNone) {\r | |
1056 | ptr = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Temp ;\r | |
1057 | ResStatus = RootBridgeInstance->ResAllocNode[Index].Status;\r | |
1058 | \r | |
1059 | switch (Index) {\r | |
1060 | \r | |
1061 | case TypeIo:\r | |
1062 | //\r | |
1063 | // Io\r | |
1064 | //\r | |
1065 | ptr->Desc = 0x8A;\r | |
1066 | ptr->Len = 0x2B;\r | |
1067 | ptr->ResType = 1;\r | |
1068 | ptr->GenFlag = 0; \r | |
1069 | ptr->SpecificFlag = 0;\r | |
1070 | ptr->AddrRangeMin = RootBridgeInstance->ResAllocNode[Index].Base;\r | |
1071 | ptr->AddrRangeMax = 0;\r | |
1072 | ptr->AddrTranslationOffset = \\r | |
1073 | (ResStatus == ResAllocated) ? EFI_RESOURCE_SATISFIED : EFI_RESOURCE_LESS;\r | |
1074 | ptr->AddrLen = RootBridgeInstance->ResAllocNode[Index].Length;\r | |
1075 | break;\r | |
1076 | \r | |
1077 | case TypeMem32:\r | |
1078 | //\r | |
1079 | // Memory 32\r | |
1080 | // \r | |
1081 | ptr->Desc = 0x8A;\r | |
1082 | ptr->Len = 0x2B;\r | |
1083 | ptr->ResType = 0;\r | |
1084 | ptr->GenFlag = 0; \r | |
1085 | ptr->SpecificFlag = 0;\r | |
1086 | ptr->AddrSpaceGranularity = 32;\r | |
1087 | ptr->AddrRangeMin = RootBridgeInstance->ResAllocNode[Index].Base;\r | |
1088 | ptr->AddrRangeMax = 0;\r | |
1089 | ptr->AddrTranslationOffset = \\r | |
1090 | (ResStatus == ResAllocated) ? EFI_RESOURCE_SATISFIED : EFI_RESOURCE_LESS; \r | |
1091 | ptr->AddrLen = RootBridgeInstance->ResAllocNode[Index].Length;\r | |
1092 | break;\r | |
1093 | \r | |
1094 | case TypePMem32:\r | |
1095 | //\r | |
1096 | // Prefetch memory 32\r | |
1097 | //\r | |
1098 | ptr->Desc = 0x8A;\r | |
1099 | ptr->Len = 0x2B;\r | |
1100 | ptr->ResType = 0;\r | |
1101 | ptr->GenFlag = 0; \r | |
1102 | ptr->SpecificFlag = 6;\r | |
1103 | ptr->AddrSpaceGranularity = 32;\r | |
1104 | ptr->AddrRangeMin = 0;\r | |
1105 | ptr->AddrRangeMax = 0;\r | |
1106 | ptr->AddrTranslationOffset = EFI_RESOURCE_NONEXISTENT; \r | |
1107 | ptr->AddrLen = 0;\r | |
1108 | break;\r | |
1109 | \r | |
1110 | case TypeMem64:\r | |
1111 | //\r | |
1112 | // Memory 64\r | |
1113 | //\r | |
1114 | ptr->Desc = 0x8A;\r | |
1115 | ptr->Len = 0x2B;\r | |
1116 | ptr->ResType = 0;\r | |
1117 | ptr->GenFlag = 0; \r | |
1118 | ptr->SpecificFlag = 0;\r | |
1119 | ptr->AddrSpaceGranularity = 64;\r | |
1120 | ptr->AddrRangeMin = 0;\r | |
1121 | ptr->AddrRangeMax = 0;\r | |
1122 | ptr->AddrTranslationOffset = EFI_RESOURCE_NONEXISTENT; \r | |
1123 | ptr->AddrLen = 0;\r | |
1124 | break;\r | |
1125 | \r | |
1126 | case TypePMem64:\r | |
1127 | //\r | |
1128 | // Prefetch memory 64\r | |
1129 | //\r | |
1130 | ptr->Desc = 0x8A;\r | |
1131 | ptr->Len = 0x2B;\r | |
1132 | ptr->ResType = 0;\r | |
1133 | ptr->GenFlag = 0; \r | |
1134 | ptr->SpecificFlag = 6;\r | |
1135 | ptr->AddrSpaceGranularity = 64;\r | |
1136 | ptr->AddrRangeMin = 0;\r | |
1137 | ptr->AddrRangeMax = 0;\r | |
1138 | ptr->AddrTranslationOffset = EFI_RESOURCE_NONEXISTENT; \r | |
1139 | ptr->AddrLen = 0;\r | |
1140 | break;\r | |
1141 | };\r | |
1142 | \r | |
1143 | Temp += sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR);\r | |
1144 | } \r | |
1145 | }\r | |
1146 | \r | |
1147 | ((EFI_ACPI_END_TAG_DESCRIPTOR *)Temp)->Desc = 0x79; \r | |
1148 | ((EFI_ACPI_END_TAG_DESCRIPTOR *)Temp)->Checksum = 0x0;\r | |
1149 | \r | |
1150 | *Configuration = Buffer; \r | |
1151 | \r | |
1152 | return EFI_SUCCESS;\r | |
1153 | }\r | |
1154 | \r | |
1155 | List = List->ForwardLink;\r | |
1156 | }\r | |
1157 | \r | |
1158 | return EFI_INVALID_PARAMETER;\r | |
1159 | }\r | |
1160 | \r | |
18c97f53 | 1161 | /**\r |
1162 | Update attribute for PCI root bridge for specifc device.\r | |
1163 | \r | |
1164 | @param RootBridge Point to PCI root bridge.\r | |
1165 | @param PciAddress The specific device PCI address\r | |
1166 | **/\r | |
21b404d1 | 1167 | STATIC\r |
1168 | VOID\r | |
1169 | UpdateRootBridgeAttributes (\r | |
1170 | IN PCI_ROOT_BRIDGE_INSTANCE *RootBridge,\r | |
1171 | IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS PciAddress\r | |
1172 | )\r | |
1173 | {\r | |
1174 | EFI_STATUS Status;\r | |
1175 | PCI_TYPE01 PciConfigurationHeader;\r | |
1176 | UINT64 Attributes;\r | |
1177 | \r | |
1178 | //\r | |
1179 | // Read the PCI Configuration Header for the device\r | |
1180 | //\r | |
1181 | Status = RootBridge->Io.Pci.Read (\r | |
1182 | &RootBridge->Io,\r | |
1183 | EfiPciWidthUint16,\r | |
1184 | EFI_PCI_ADDRESS(\r | |
1185 | PciAddress.Bus,\r | |
1186 | PciAddress.Device,\r | |
1187 | PciAddress.Function,\r | |
1188 | 0\r | |
1189 | ),\r | |
1190 | sizeof (PciConfigurationHeader) / sizeof (UINT16),\r | |
1191 | &PciConfigurationHeader\r | |
1192 | );\r | |
1193 | if (EFI_ERROR (Status)) {\r | |
1194 | return;\r | |
1195 | }\r | |
1196 | \r | |
1197 | Attributes = RootBridge->Attributes;\r | |
1198 | \r | |
1199 | //\r | |
1200 | // Look for devices with the VGA Palette Snoop enabled in the COMMAND register of the PCI Config Header\r | |
1201 | //\r | |
1202 | if (PciConfigurationHeader.Hdr.Command & 0x20) {\r | |
1203 | Attributes |= EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO;\r | |
1204 | }\r | |
1205 | \r | |
1206 | //\r | |
1207 | // If the device is a PCI-PCI Bridge, then look at the Subordinate Bus Number\r | |
1208 | //\r | |
1209 | if (IS_PCI_BRIDGE(&PciConfigurationHeader)) {\r | |
1210 | //\r | |
1211 | // Look at the PPB Configuration for legacy decoding attributes\r | |
1212 | //\r | |
1213 | if (PciConfigurationHeader.Bridge.BridgeControl & 0x04) {\r | |
1214 | Attributes |= EFI_PCI_ATTRIBUTE_ISA_IO;\r | |
1215 | Attributes |= EFI_PCI_ATTRIBUTE_ISA_MOTHERBOARD_IO;\r | |
1216 | }\r | |
1217 | if (PciConfigurationHeader.Bridge.BridgeControl & 0x08) {\r | |
1218 | Attributes |= EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO;\r | |
1219 | Attributes |= EFI_PCI_ATTRIBUTE_VGA_MEMORY;\r | |
1220 | Attributes |= EFI_PCI_ATTRIBUTE_VGA_IO;\r | |
1221 | }\r | |
1222 | } else {\r | |
1223 | //\r | |
1224 | // See if the PCI device is an IDE controller\r | |
1225 | //\r | |
1226 | if (PciConfigurationHeader.Hdr.ClassCode[2] == 0x01 &&\r | |
1227 | PciConfigurationHeader.Hdr.ClassCode[1] == 0x01 ) {\r | |
1228 | if (PciConfigurationHeader.Hdr.ClassCode[0] & 0x80) {\r | |
1229 | Attributes |= EFI_PCI_ATTRIBUTE_IDE_PRIMARY_IO;\r | |
1230 | Attributes |= EFI_PCI_ATTRIBUTE_IDE_SECONDARY_IO;\r | |
1231 | }\r | |
1232 | if (PciConfigurationHeader.Hdr.ClassCode[0] & 0x01) {\r | |
1233 | Attributes |= EFI_PCI_ATTRIBUTE_IDE_PRIMARY_IO;\r | |
1234 | }\r | |
1235 | if (PciConfigurationHeader.Hdr.ClassCode[0] & 0x04) {\r | |
1236 | Attributes |= EFI_PCI_ATTRIBUTE_IDE_SECONDARY_IO;\r | |
1237 | }\r | |
1238 | }\r | |
1239 | \r | |
1240 | //\r | |
1241 | // See if the PCI device is a legacy VGA controller\r | |
1242 | //\r | |
1243 | if (PciConfigurationHeader.Hdr.ClassCode[2] == 0x00 &&\r | |
1244 | PciConfigurationHeader.Hdr.ClassCode[1] == 0x01 ) {\r | |
1245 | Attributes |= EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO;\r | |
1246 | Attributes |= EFI_PCI_ATTRIBUTE_VGA_MEMORY;\r | |
1247 | Attributes |= EFI_PCI_ATTRIBUTE_VGA_IO;\r | |
1248 | }\r | |
1249 | \r | |
1250 | //\r | |
1251 | // See if the PCI device is a standard VGA controller\r | |
1252 | //\r | |
1253 | if (PciConfigurationHeader.Hdr.ClassCode[2] == 0x03 &&\r | |
1254 | PciConfigurationHeader.Hdr.ClassCode[1] == 0x00 ) {\r | |
1255 | Attributes |= EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO;\r | |
1256 | Attributes |= EFI_PCI_ATTRIBUTE_VGA_MEMORY;\r | |
1257 | Attributes |= EFI_PCI_ATTRIBUTE_VGA_IO;\r | |
1258 | }\r | |
1259 | }\r | |
1260 | \r | |
1261 | RootBridge->Attributes = Attributes;\r | |
1262 | RootBridge->Supports = Attributes;\r | |
1263 | }\r | |
1264 | \r | |
18c97f53 | 1265 | /**\r |
1266 | Provides the hooks from the PCI bus driver to every PCI controller (device/function) at various\r | |
1267 | stages of the PCI enumeration process that allow the host bridge driver to preinitialize individual\r | |
1268 | PCI controllers before enumeration.\r | |
1269 | \r | |
1270 | This function is called during the PCI enumeration process. No specific action is expected from this\r | |
1271 | member function. It allows the host bridge driver to preinitialize individual PCI controllers before\r | |
1272 | enumeration.\r | |
1273 | \r | |
1274 | @param This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL instance.\r | |
1275 | @param RootBridgeHandle The associated PCI root bridge handle. Type EFI_HANDLE is defined in\r | |
1276 | InstallProtocolInterface() in the UEFI 2.0 Specification.\r | |
1277 | @param PciAddress The address of the PCI device on the PCI bus. This address can be passed to the\r | |
1278 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL member functions to access the PCI\r | |
1279 | configuration space of the device. See Table 12-1 in the UEFI 2.0 Specification for\r | |
1280 | the definition of EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS.\r | |
1281 | @param Phase The phase of the PCI device enumeration. \r | |
1282 | \r | |
1283 | @retval EFI_SUCCESS The requested parameters were returned.\r | |
1284 | @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.\r | |
1285 | @retval EFI_INVALID_PARAMETER Phase is not a valid phase that is defined in\r | |
1286 | EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE.\r | |
1287 | @retval EFI_DEVICE_ERROR Programming failed due to a hardware error. The PCI enumerator should\r | |
1288 | not enumerate this device, including its child devices if it is a PCI-to-PCI\r | |
1289 | bridge.\r | |
1290 | \r | |
1291 | **/\r | |
21b404d1 | 1292 | EFI_STATUS\r |
1293 | EFIAPI\r | |
1294 | PreprocessController (\r | |
1295 | IN struct _EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r | |
1296 | IN EFI_HANDLE RootBridgeHandle,\r | |
1297 | IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS PciAddress,\r | |
1298 | IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE Phase\r | |
1299 | )\r | |
21b404d1 | 1300 | {\r |
1301 | PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;\r | |
1302 | PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;\r | |
1303 | LIST_ENTRY *List; \r | |
1304 | \r | |
1305 | HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);\r | |
1306 | List = HostBridgeInstance->Head.ForwardLink;\r | |
1307 | \r | |
1308 | //\r | |
1309 | // Enumerate the root bridges in this host bridge\r | |
1310 | //\r | |
1311 | while (List != &HostBridgeInstance->Head) {\r | |
1312 | RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);\r | |
1313 | if (RootBridgeHandle == RootBridgeInstance->Handle) {\r | |
1314 | UpdateRootBridgeAttributes (\r | |
1315 | RootBridgeInstance,\r | |
1316 | PciAddress\r | |
1317 | );\r | |
1318 | return EFI_SUCCESS;\r | |
1319 | }\r | |
1320 | List = List->ForwardLink;\r | |
1321 | }\r | |
1322 | \r | |
1323 | return EFI_INVALID_PARAMETER;\r | |
1324 | }\r |