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97404058 | 1 | /** @file\r |
8e8227d1 | 2 | Internal library implementation for PCI Bus module.\r |
ead42efc | 3 | \r |
8e8227d1 | 4 | Copyright (c) 2006 - 2009, Intel Corporation\r |
4beb4afe | 5 | All rights reserved. This program and the accompanying materials\r |
6 | are 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 | |
ead42efc | 12 | \r |
3db51098 | 13 | **/\r |
ead42efc | 14 | \r |
03417d8d | 15 | #include "PciBus.h"\r |
ead42efc | 16 | \r |
ead42efc | 17 | \r |
57076f45 | 18 | /**\r |
8e8227d1 | 19 | Retrieve the PCI Card device BAR information via PciIo interface.\r |
20 | \r | |
21 | @param PciIoDevice PCI Card device instance.\r | |
22 | \r | |
57076f45 | 23 | **/\r |
ead42efc | 24 | VOID\r |
25 | GetBackPcCardBar (\r | |
26 | IN PCI_IO_DEVICE *PciIoDevice\r | |
27 | )\r | |
ead42efc | 28 | {\r |
29 | UINT32 Address;\r | |
30 | \r | |
31 | if (!FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r | |
32 | return;\r | |
33 | }\r | |
34 | \r | |
35 | //\r | |
36 | // Read PciBar information from the bar register\r | |
37 | //\r | |
38 | if (!gFullEnumeration) {\r | |
ead42efc | 39 | Address = 0;\r |
9eb130ff | 40 | PciIoDevice->PciIo.Pci.Read (\r |
41 | &(PciIoDevice->PciIo),\r | |
42 | EfiPciIoWidthUint32,\r | |
43 | PCI_CARD_MEMORY_BASE_0,\r | |
44 | 1,\r | |
45 | &Address\r | |
46 | );\r | |
ead42efc | 47 | \r |
48 | (PciIoDevice->PciBar)[P2C_MEM_1].BaseAddress = (UINT64) (Address);\r | |
49 | (PciIoDevice->PciBar)[P2C_MEM_1].Length = 0x2000000;\r | |
50 | (PciIoDevice->PciBar)[P2C_MEM_1].BarType = PciBarTypeMem32;\r | |
51 | \r | |
52 | Address = 0;\r | |
9eb130ff | 53 | PciIoDevice->PciIo.Pci.Read (\r |
54 | &(PciIoDevice->PciIo),\r | |
55 | EfiPciIoWidthUint32,\r | |
56 | PCI_CARD_MEMORY_BASE_1,\r | |
57 | 1,\r | |
58 | &Address\r | |
59 | );\r | |
ead42efc | 60 | (PciIoDevice->PciBar)[P2C_MEM_2].BaseAddress = (UINT64) (Address);\r |
61 | (PciIoDevice->PciBar)[P2C_MEM_2].Length = 0x2000000;\r | |
62 | (PciIoDevice->PciBar)[P2C_MEM_2].BarType = PciBarTypePMem32;\r | |
63 | \r | |
64 | Address = 0;\r | |
9eb130ff | 65 | PciIoDevice->PciIo.Pci.Read (\r |
66 | &(PciIoDevice->PciIo),\r | |
67 | EfiPciIoWidthUint32,\r | |
68 | PCI_CARD_IO_BASE_0_LOWER,\r | |
69 | 1,\r | |
70 | &Address\r | |
71 | );\r | |
ead42efc | 72 | (PciIoDevice->PciBar)[P2C_IO_1].BaseAddress = (UINT64) (Address);\r |
73 | (PciIoDevice->PciBar)[P2C_IO_1].Length = 0x100;\r | |
74 | (PciIoDevice->PciBar)[P2C_IO_1].BarType = PciBarTypeIo16;\r | |
75 | \r | |
76 | Address = 0;\r | |
9eb130ff | 77 | PciIoDevice->PciIo.Pci.Read (\r |
78 | &(PciIoDevice->PciIo),\r | |
79 | EfiPciIoWidthUint32,\r | |
80 | PCI_CARD_IO_BASE_1_LOWER,\r | |
81 | 1,\r | |
82 | &Address\r | |
83 | );\r | |
ead42efc | 84 | (PciIoDevice->PciBar)[P2C_IO_2].BaseAddress = (UINT64) (Address);\r |
85 | (PciIoDevice->PciBar)[P2C_IO_2].Length = 0x100;\r | |
86 | (PciIoDevice->PciBar)[P2C_IO_2].BarType = PciBarTypeIo16;\r | |
87 | \r | |
88 | }\r | |
89 | \r | |
8e8227d1 | 90 | if (gPciHotPlugInit != NULL && FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r |
ead42efc | 91 | GetResourcePaddingForHpb (PciIoDevice);\r |
92 | }\r | |
93 | }\r | |
94 | \r | |
57076f45 | 95 | /**\r |
96 | Remove rejected pci device from specific root bridge\r | |
97 | handle.\r | |
8e8227d1 | 98 | \r |
99 | @param RootBridgeHandle Specific parent root bridge handle.\r | |
eeefcb9d | 100 | @param Bridge Bridge device instance.\r |
8e8227d1 | 101 | \r |
57076f45 | 102 | **/\r |
8e8227d1 | 103 | VOID\r |
ead42efc | 104 | RemoveRejectedPciDevices (\r |
8e8227d1 | 105 | IN EFI_HANDLE RootBridgeHandle,\r |
106 | IN PCI_IO_DEVICE *Bridge\r | |
ead42efc | 107 | )\r |
ead42efc | 108 | {\r |
109 | PCI_IO_DEVICE *Temp;\r | |
110 | LIST_ENTRY *CurrentLink;\r | |
111 | LIST_ENTRY *LastLink;\r | |
112 | \r | |
113 | if (!FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r | |
8e8227d1 | 114 | return;\r |
ead42efc | 115 | }\r |
116 | \r | |
117 | CurrentLink = Bridge->ChildList.ForwardLink;\r | |
118 | \r | |
97404058 | 119 | while (CurrentLink != NULL && CurrentLink != &Bridge->ChildList) {\r |
ead42efc | 120 | \r |
121 | Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);\r | |
122 | \r | |
123 | if (IS_PCI_BRIDGE (&Temp->Pci)) {\r | |
124 | //\r | |
125 | // Remove rejected devices recusively\r | |
126 | //\r | |
127 | RemoveRejectedPciDevices (RootBridgeHandle, Temp);\r | |
128 | } else {\r | |
129 | //\r | |
130 | // Skip rejection for all PPBs, while detect rejection for others\r | |
131 | //\r | |
132 | if (IsPciDeviceRejected (Temp)) {\r | |
133 | \r | |
134 | //\r | |
135 | // For P2C, remove all devices on it\r | |
136 | //\r | |
ead42efc | 137 | if (!IsListEmpty (&Temp->ChildList)) {\r |
138 | RemoveAllPciDeviceOnBridge (RootBridgeHandle, Temp);\r | |
139 | }\r | |
140 | \r | |
141 | //\r | |
142 | // Finally remove itself\r | |
143 | //\r | |
ead42efc | 144 | LastLink = CurrentLink->BackLink;\r |
145 | RemoveEntryList (CurrentLink);\r | |
146 | FreePciDevice (Temp);\r | |
147 | \r | |
148 | CurrentLink = LastLink;\r | |
149 | }\r | |
150 | }\r | |
151 | \r | |
152 | CurrentLink = CurrentLink->ForwardLink;\r | |
153 | }\r | |
ead42efc | 154 | }\r |
155 | \r | |
57076f45 | 156 | /**\r |
8e8227d1 | 157 | Submits the I/O and memory resource requirements for the specified PCI Host Bridge.\r |
57076f45 | 158 | \r |
eeefcb9d | 159 | @param PciResAlloc Point to protocol instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.\r |
ead42efc | 160 | \r |
8e8227d1 | 161 | @retval EFI_SUCCESS Successfully finished resource allocation.\r |
162 | @retval EFI_NOT_FOUND Cannot get root bridge instance.\r | |
163 | @retval EFI_OUT_OF_RESOURCES Platform failed to program the resources if no hot plug supported.\r | |
164 | @retval other Some error occurred when allocating resources for the PCI Host Bridge.\r | |
ead42efc | 165 | \r |
8e8227d1 | 166 | @note Feature flag PcdPciBusHotplugDeviceSupport determine whether need support hotplug.\r |
ead42efc | 167 | \r |
57076f45 | 168 | **/\r |
ead42efc | 169 | EFI_STATUS\r |
8e8227d1 | 170 | PciHostBridgeResourceAllocator (\r |
ead42efc | 171 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r |
172 | )\r | |
ead42efc | 173 | {\r |
8e8227d1 | 174 | PCI_IO_DEVICE *RootBridgeDev;\r |
175 | EFI_HANDLE RootBridgeHandle;\r | |
176 | VOID *AcpiConfig;\r | |
177 | EFI_STATUS Status;\r | |
178 | UINT64 IoBase;\r | |
179 | UINT64 Mem32Base;\r | |
180 | UINT64 PMem32Base;\r | |
181 | UINT64 Mem64Base;\r | |
182 | UINT64 PMem64Base;\r | |
183 | UINT64 IoResStatus;\r | |
184 | UINT64 Mem32ResStatus;\r | |
185 | UINT64 PMem32ResStatus;\r | |
186 | UINT64 Mem64ResStatus;\r | |
187 | UINT64 PMem64ResStatus;\r | |
188 | UINT64 MaxOptionRomSize;\r | |
189 | PCI_RESOURCE_NODE *IoBridge;\r | |
190 | PCI_RESOURCE_NODE *Mem32Bridge;\r | |
191 | PCI_RESOURCE_NODE *PMem32Bridge;\r | |
192 | PCI_RESOURCE_NODE *Mem64Bridge;\r | |
193 | PCI_RESOURCE_NODE *PMem64Bridge;\r | |
194 | PCI_RESOURCE_NODE IoPool;\r | |
195 | PCI_RESOURCE_NODE Mem32Pool;\r | |
196 | PCI_RESOURCE_NODE PMem32Pool;\r | |
197 | PCI_RESOURCE_NODE Mem64Pool;\r | |
198 | PCI_RESOURCE_NODE PMem64Pool;\r | |
199 | BOOLEAN ReAllocate;\r | |
938f2b4f | 200 | EFI_DEVICE_HANDLE_EXTENDED_DATA_PAYLOAD HandleExtendedData;\r |
201 | EFI_RESOURCE_ALLOC_FAILURE_ERROR_DATA_PAYLOAD AllocFailExtendedData;\r | |
ead42efc | 202 | \r |
203 | //\r | |
204 | // Reallocate flag\r | |
205 | //\r | |
206 | ReAllocate = FALSE;\r | |
207 | \r | |
208 | //\r | |
8e8227d1 | 209 | // It may try several times if the resource allocation fails\r |
ead42efc | 210 | //\r |
211 | while (TRUE) {\r | |
ead42efc | 212 | //\r |
213 | // Initialize resource pool\r | |
214 | //\r | |
215 | InitializeResourcePool (&IoPool, PciBarTypeIo16);\r | |
216 | InitializeResourcePool (&Mem32Pool, PciBarTypeMem32);\r | |
217 | InitializeResourcePool (&PMem32Pool, PciBarTypePMem32);\r | |
218 | InitializeResourcePool (&Mem64Pool, PciBarTypeMem64);\r | |
219 | InitializeResourcePool (&PMem64Pool, PciBarTypePMem64);\r | |
220 | \r | |
221 | RootBridgeDev = NULL;\r | |
222 | RootBridgeHandle = 0;\r | |
223 | \r | |
224 | while (PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) {\r | |
ead42efc | 225 | //\r |
8e8227d1 | 226 | // Get Root Bridge Device by handle\r |
ead42efc | 227 | //\r |
228 | RootBridgeDev = GetRootBridgeByHandle (RootBridgeHandle);\r | |
229 | \r | |
230 | if (RootBridgeDev == NULL) {\r | |
231 | return EFI_NOT_FOUND;\r | |
232 | }\r | |
233 | \r | |
234 | //\r | |
235 | // Create the entire system resource map from the information collected by\r | |
236 | // enumerator. Several resource tree was created\r | |
237 | //\r | |
238 | \r | |
239 | IoBridge = CreateResourceNode (\r | |
48a9ea7b | 240 | RootBridgeDev,\r |
241 | 0,\r | |
242 | 0xFFF,\r | |
243 | 0,\r | |
244 | PciBarTypeIo16,\r | |
245 | PciResUsageTypical\r | |
246 | );\r | |
ead42efc | 247 | \r |
248 | Mem32Bridge = CreateResourceNode (\r | |
249 | RootBridgeDev,\r | |
250 | 0,\r | |
251 | 0xFFFFF,\r | |
252 | 0,\r | |
253 | PciBarTypeMem32,\r | |
254 | PciResUsageTypical\r | |
255 | );\r | |
256 | \r | |
257 | PMem32Bridge = CreateResourceNode (\r | |
48a9ea7b | 258 | RootBridgeDev,\r |
259 | 0,\r | |
260 | 0xFFFFF,\r | |
261 | 0,\r | |
262 | PciBarTypePMem32,\r | |
263 | PciResUsageTypical\r | |
264 | );\r | |
ead42efc | 265 | \r |
266 | Mem64Bridge = CreateResourceNode (\r | |
267 | RootBridgeDev,\r | |
268 | 0,\r | |
269 | 0xFFFFF,\r | |
270 | 0,\r | |
271 | PciBarTypeMem64,\r | |
272 | PciResUsageTypical\r | |
273 | );\r | |
274 | \r | |
275 | PMem64Bridge = CreateResourceNode (\r | |
48a9ea7b | 276 | RootBridgeDev,\r |
277 | 0,\r | |
278 | 0xFFFFF,\r | |
279 | 0,\r | |
280 | PciBarTypePMem64,\r | |
281 | PciResUsageTypical\r | |
282 | );\r | |
ead42efc | 283 | \r |
8e8227d1 | 284 | //\r |
285 | // Create resourcemap by going through all the devices subject to this root bridge\r | |
286 | //\r | |
287 | CreateResourceMap (\r | |
288 | RootBridgeDev,\r | |
289 | IoBridge,\r | |
290 | Mem32Bridge,\r | |
291 | PMem32Bridge,\r | |
292 | Mem64Bridge,\r | |
293 | PMem64Bridge\r | |
294 | );\r | |
ead42efc | 295 | \r |
296 | //\r | |
297 | // Get the max ROM size that the root bridge can process\r | |
298 | //\r | |
299 | RootBridgeDev->RomSize = Mem32Bridge->Length;\r | |
300 | \r | |
301 | //\r | |
302 | // Skip to enlarge the resource request during realloction\r | |
303 | //\r | |
304 | if (!ReAllocate) {\r | |
305 | //\r | |
306 | // Get Max Option Rom size for current root bridge\r | |
307 | //\r | |
308 | MaxOptionRomSize = GetMaxOptionRomSize (RootBridgeDev);\r | |
309 | \r | |
310 | //\r | |
311 | // Enlarger the mem32 resource to accomdate the option rom\r | |
312 | // if the mem32 resource is not enough to hold the rom\r | |
313 | //\r | |
314 | if (MaxOptionRomSize > Mem32Bridge->Length) {\r | |
315 | \r | |
316 | Mem32Bridge->Length = MaxOptionRomSize;\r | |
317 | RootBridgeDev->RomSize = MaxOptionRomSize;\r | |
318 | \r | |
319 | //\r | |
320 | // Alignment should be adjusted as well\r | |
321 | //\r | |
322 | if (Mem32Bridge->Alignment < MaxOptionRomSize - 1) {\r | |
323 | Mem32Bridge->Alignment = MaxOptionRomSize - 1;\r | |
324 | }\r | |
325 | }\r | |
326 | }\r | |
327 | \r | |
328 | //\r | |
329 | // Based on the all the resource tree, contruct ACPI resource node to\r | |
330 | // submit the resource aperture to pci host bridge protocol\r | |
331 | //\r | |
332 | Status = ConstructAcpiResourceRequestor (\r | |
48a9ea7b | 333 | RootBridgeDev,\r |
334 | IoBridge,\r | |
335 | Mem32Bridge,\r | |
336 | PMem32Bridge,\r | |
337 | Mem64Bridge,\r | |
338 | PMem64Bridge,\r | |
339 | &AcpiConfig\r | |
340 | );\r | |
ead42efc | 341 | \r |
342 | //\r | |
343 | // Insert these resource nodes into the database\r | |
344 | //\r | |
345 | InsertResourceNode (&IoPool, IoBridge);\r | |
346 | InsertResourceNode (&Mem32Pool, Mem32Bridge);\r | |
347 | InsertResourceNode (&PMem32Pool, PMem32Bridge);\r | |
348 | InsertResourceNode (&Mem64Pool, Mem64Bridge);\r | |
349 | InsertResourceNode (&PMem64Pool, PMem64Bridge);\r | |
350 | \r | |
351 | if (Status == EFI_SUCCESS) {\r | |
352 | //\r | |
353 | // Submit the resource requirement\r | |
354 | //\r | |
355 | Status = PciResAlloc->SubmitResources (\r | |
356 | PciResAlloc,\r | |
357 | RootBridgeDev->Handle,\r | |
358 | AcpiConfig\r | |
359 | );\r | |
360 | }\r | |
361 | \r | |
362 | //\r | |
363 | // Free acpi resource node\r | |
364 | //\r | |
365 | if (AcpiConfig != NULL) {\r | |
366 | FreePool (AcpiConfig);\r | |
367 | }\r | |
368 | \r | |
369 | if (EFI_ERROR (Status)) {\r | |
370 | //\r | |
371 | // Destroy all the resource tree\r | |
372 | //\r | |
373 | DestroyResourceTree (&IoPool);\r | |
374 | DestroyResourceTree (&Mem32Pool);\r | |
375 | DestroyResourceTree (&PMem32Pool);\r | |
376 | DestroyResourceTree (&Mem64Pool);\r | |
377 | DestroyResourceTree (&PMem64Pool);\r | |
378 | return Status;\r | |
379 | }\r | |
380 | }\r | |
ead42efc | 381 | //\r |
9c10bff3 | 382 | // End while, at least one Root Bridge should be found.\r |
ead42efc | 383 | //\r |
9c10bff3 | 384 | ASSERT (RootBridgeDev != NULL);\r |
ead42efc | 385 | \r |
8e8227d1 | 386 | //\r |
387 | // Notify platform to start to program the resource\r | |
388 | //\r | |
ead42efc | 389 | Status = NotifyPhase (PciResAlloc, EfiPciHostBridgeAllocateResources);\r |
8e8227d1 | 390 | if (!FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r |
ead42efc | 391 | //\r |
8e8227d1 | 392 | // If Hot Plug is not supported\r |
ead42efc | 393 | //\r |
8e8227d1 | 394 | if (EFI_ERROR (Status)) {\r |
395 | //\r | |
396 | // Allocation failed, then return\r | |
397 | //\r | |
398 | return EFI_OUT_OF_RESOURCES;\r | |
399 | }\r | |
400 | //\r | |
401 | // Allocation succeed.\r | |
402 | // Get host bridge handle for status report, and then skip the main while\r | |
403 | //\r | |
404 | HandleExtendedData.Handle = RootBridgeDev->PciRootBridgeIo->ParentHandle;\r | |
ead42efc | 405 | \r |
8e8227d1 | 406 | break;\r |
ead42efc | 407 | \r |
8e8227d1 | 408 | } else {\r |
ead42efc | 409 | //\r |
8e8227d1 | 410 | // If Hot Plug is supported\r |
ead42efc | 411 | //\r |
8e8227d1 | 412 | if (!EFI_ERROR (Status)) {\r |
413 | //\r | |
414 | // Allocation succeed, then continue the following\r | |
415 | //\r | |
416 | break;\r | |
ead42efc | 417 | }\r |
418 | \r | |
419 | //\r | |
8e8227d1 | 420 | // If the resource allocation is unsuccessful, free resources on bridge\r |
ead42efc | 421 | //\r |
ead42efc | 422 | \r |
8e8227d1 | 423 | RootBridgeDev = NULL;\r |
424 | RootBridgeHandle = 0;\r | |
ead42efc | 425 | \r |
8e8227d1 | 426 | IoResStatus = EFI_RESOURCE_SATISFIED;\r |
427 | Mem32ResStatus = EFI_RESOURCE_SATISFIED;\r | |
428 | PMem32ResStatus = EFI_RESOURCE_SATISFIED;\r | |
429 | Mem64ResStatus = EFI_RESOURCE_SATISFIED;\r | |
430 | PMem64ResStatus = EFI_RESOURCE_SATISFIED;\r | |
ead42efc | 431 | \r |
8e8227d1 | 432 | while (PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) {\r |
433 | //\r | |
434 | // Get RootBridg Device by handle\r | |
435 | //\r | |
436 | RootBridgeDev = GetRootBridgeByHandle (RootBridgeHandle);\r | |
437 | if (RootBridgeDev == NULL) {\r | |
438 | return EFI_NOT_FOUND;\r | |
439 | }\r | |
ead42efc | 440 | \r |
ead42efc | 441 | //\r |
8e8227d1 | 442 | // Get host bridge handle for status report\r |
ead42efc | 443 | //\r |
8e8227d1 | 444 | HandleExtendedData.Handle = RootBridgeDev->PciRootBridgeIo->ParentHandle;\r |
ead42efc | 445 | \r |
8e8227d1 | 446 | //\r |
447 | // Get acpi resource node for all the resource types\r | |
448 | //\r | |
449 | AcpiConfig = NULL;\r | |
ead42efc | 450 | \r |
8e8227d1 | 451 | Status = PciResAlloc->GetProposedResources (\r |
452 | PciResAlloc,\r | |
453 | RootBridgeDev->Handle,\r | |
454 | &AcpiConfig\r | |
455 | );\r | |
ead42efc | 456 | \r |
8e8227d1 | 457 | if (EFI_ERROR (Status)) {\r |
458 | return Status;\r | |
459 | }\r | |
ead42efc | 460 | \r |
8e8227d1 | 461 | if (AcpiConfig != NULL) {\r |
462 | //\r | |
463 | // Adjust resource allocation policy for each RB\r | |
464 | //\r | |
465 | GetResourceAllocationStatus (\r | |
466 | AcpiConfig,\r | |
467 | &IoResStatus,\r | |
468 | &Mem32ResStatus,\r | |
469 | &PMem32ResStatus,\r | |
470 | &Mem64ResStatus,\r | |
471 | &PMem64ResStatus\r | |
472 | );\r | |
473 | FreePool (AcpiConfig);\r | |
474 | }\r | |
475 | }\r | |
476 | //\r | |
477 | // End while\r | |
478 | //\r | |
479 | \r | |
480 | //\r | |
481 | // Raise the EFI_IOB_EC_RESOURCE_CONFLICT status code\r | |
482 | //\r | |
483 | //\r | |
484 | // It is very difficult to follow the spec here\r | |
485 | // Device path , Bar index can not be get here\r | |
486 | //\r | |
487 | ZeroMem (&AllocFailExtendedData, sizeof (AllocFailExtendedData));\r | |
ead42efc | 488 | \r |
8e8227d1 | 489 | REPORT_STATUS_CODE_WITH_EXTENDED_DATA (\r |
490 | EFI_PROGRESS_CODE,\r | |
491 | EFI_IO_BUS_PCI | EFI_IOB_EC_RESOURCE_CONFLICT,\r | |
492 | (VOID *) &AllocFailExtendedData,\r | |
493 | sizeof (AllocFailExtendedData)\r | |
494 | );\r | |
ead42efc | 495 | \r |
8e8227d1 | 496 | Status = PciHostBridgeAdjustAllocation (\r |
497 | &IoPool,\r | |
498 | &Mem32Pool,\r | |
499 | &PMem32Pool,\r | |
500 | &Mem64Pool,\r | |
501 | &PMem64Pool,\r | |
502 | IoResStatus,\r | |
503 | Mem32ResStatus,\r | |
504 | PMem32ResStatus,\r | |
505 | Mem64ResStatus,\r | |
506 | PMem64ResStatus\r | |
507 | );\r | |
508 | \r | |
509 | //\r | |
510 | // Destroy all the resource tree\r | |
511 | //\r | |
512 | DestroyResourceTree (&IoPool);\r | |
513 | DestroyResourceTree (&Mem32Pool);\r | |
514 | DestroyResourceTree (&PMem32Pool);\r | |
515 | DestroyResourceTree (&Mem64Pool);\r | |
516 | DestroyResourceTree (&PMem64Pool);\r | |
ead42efc | 517 | \r |
8e8227d1 | 518 | NotifyPhase (PciResAlloc, EfiPciHostBridgeFreeResources);\r |
519 | \r | |
520 | if (EFI_ERROR (Status)) {\r | |
521 | return Status;\r | |
522 | }\r | |
ead42efc | 523 | \r |
8e8227d1 | 524 | ReAllocate = TRUE;\r |
525 | }\r | |
ead42efc | 526 | }\r |
527 | //\r | |
528 | // End main while\r | |
529 | //\r | |
530 | \r | |
531 | //\r | |
532 | // Raise the EFI_IOB_PCI_RES_ALLOC status code\r | |
533 | //\r | |
534 | REPORT_STATUS_CODE_WITH_EXTENDED_DATA (\r | |
535 | EFI_PROGRESS_CODE,\r | |
536 | EFI_IO_BUS_PCI | EFI_IOB_PCI_PC_RES_ALLOC,\r | |
537 | (VOID *) &HandleExtendedData,\r | |
538 | sizeof (HandleExtendedData)\r | |
539 | );\r | |
540 | \r | |
541 | //\r | |
542 | // Notify pci bus driver starts to program the resource\r | |
543 | //\r | |
544 | NotifyPhase (PciResAlloc, EfiPciHostBridgeSetResources);\r | |
545 | \r | |
546 | RootBridgeDev = NULL;\r | |
547 | \r | |
548 | RootBridgeHandle = 0;\r | |
549 | \r | |
550 | while (PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) {\r | |
ead42efc | 551 | //\r |
552 | // Get RootBridg Device by handle\r | |
553 | //\r | |
554 | RootBridgeDev = GetRootBridgeByHandle (RootBridgeHandle);\r | |
555 | \r | |
556 | if (RootBridgeDev == NULL) {\r | |
557 | return EFI_NOT_FOUND;\r | |
558 | }\r | |
559 | \r | |
560 | //\r | |
561 | // Get acpi resource node for all the resource types\r | |
562 | //\r | |
563 | AcpiConfig = NULL;\r | |
564 | Status = PciResAlloc->GetProposedResources (\r | |
565 | PciResAlloc,\r | |
566 | RootBridgeDev->Handle,\r | |
567 | &AcpiConfig\r | |
568 | );\r | |
569 | \r | |
570 | if (EFI_ERROR (Status)) {\r | |
571 | return Status;\r | |
572 | }\r | |
573 | \r | |
574 | //\r | |
575 | // Get the resource base by interpreting acpi resource node\r | |
576 | //\r | |
577 | //\r | |
578 | GetResourceBase (\r | |
579 | AcpiConfig,\r | |
580 | &IoBase,\r | |
581 | &Mem32Base,\r | |
582 | &PMem32Base,\r | |
583 | &Mem64Base,\r | |
584 | &PMem64Base\r | |
585 | );\r | |
586 | \r | |
587 | //\r | |
588 | // Process option rom for this root bridge\r | |
589 | //\r | |
8e8227d1 | 590 | ProcessOptionRom (RootBridgeDev, Mem32Base, RootBridgeDev->RomSize);\r |
ead42efc | 591 | \r |
592 | //\r | |
593 | // Create the entire system resource map from the information collected by\r | |
594 | // enumerator. Several resource tree was created\r | |
595 | //\r | |
8e8227d1 | 596 | GetResourceMap (\r |
597 | RootBridgeDev,\r | |
598 | &IoBridge,\r | |
599 | &Mem32Bridge,\r | |
600 | &PMem32Bridge,\r | |
601 | &Mem64Bridge,\r | |
602 | &PMem64Bridge,\r | |
603 | &IoPool,\r | |
604 | &Mem32Pool,\r | |
605 | &PMem32Pool,\r | |
606 | &Mem64Pool,\r | |
607 | &PMem64Pool\r | |
608 | );\r | |
ead42efc | 609 | \r |
610 | //\r | |
611 | // Program IO resources\r | |
612 | //\r | |
613 | ProgramResource (\r | |
614 | IoBase,\r | |
615 | IoBridge\r | |
616 | );\r | |
617 | \r | |
618 | //\r | |
619 | // Program Mem32 resources\r | |
620 | //\r | |
621 | ProgramResource (\r | |
622 | Mem32Base,\r | |
623 | Mem32Bridge\r | |
624 | );\r | |
625 | \r | |
626 | //\r | |
8e8227d1 | 627 | // Program PMem32 resources\r |
628 | //\r | |
629 | ProgramResource (\r | |
630 | PMem32Base,\r | |
631 | PMem32Bridge\r | |
632 | );\r | |
ead42efc | 633 | \r |
8e8227d1 | 634 | //\r |
635 | // Program Mem64 resources\r | |
636 | //\r | |
637 | ProgramResource (\r | |
638 | Mem64Base,\r | |
639 | Mem64Bridge\r | |
640 | );\r | |
ead42efc | 641 | \r |
8e8227d1 | 642 | //\r |
643 | // Program PMem64 resources\r | |
644 | //\r | |
645 | ProgramResource (\r | |
646 | PMem64Base,\r | |
647 | PMem64Bridge\r | |
648 | );\r | |
649 | \r | |
650 | FreePool (AcpiConfig);\r | |
ead42efc | 651 | }\r |
652 | \r | |
8e8227d1 | 653 | //\r |
654 | // Destroy all the resource tree\r | |
655 | //\r | |
656 | DestroyResourceTree (&IoPool);\r | |
657 | DestroyResourceTree (&Mem32Pool);\r | |
658 | DestroyResourceTree (&PMem32Pool);\r | |
659 | DestroyResourceTree (&Mem64Pool);\r | |
660 | DestroyResourceTree (&PMem64Pool);\r | |
661 | \r | |
662 | //\r | |
663 | // Notify the resource allocation phase is to end\r | |
664 | //\r | |
665 | NotifyPhase (PciResAlloc, EfiPciHostBridgeEndResourceAllocation);\r | |
666 | \r | |
ead42efc | 667 | return EFI_SUCCESS;\r |
668 | }\r | |
669 | \r | |
57076f45 | 670 | /**\r |
8e8227d1 | 671 | Scan pci bus and assign bus number to the given PCI bus system.\r |
672 | \r | |
673 | @param Bridge Bridge device instance.\r | |
674 | @param StartBusNumber start point.\r | |
675 | @param SubBusNumber Point to sub bus number.\r | |
676 | @param PaddedBusRange Customized bus number.\r | |
677 | \r | |
678 | @retval EFI_SUCCESS Successfully scanned and assigned bus number.\r | |
679 | @retval other Some error occurred when scanning pci bus.\r | |
680 | \r | |
681 | @note Feature flag PcdPciBusHotplugDeviceSupport determine whether need support hotplug.\r | |
682 | \r | |
57076f45 | 683 | **/\r |
ead42efc | 684 | EFI_STATUS\r |
8e8227d1 | 685 | PciScanBus (\r |
ead42efc | 686 | IN PCI_IO_DEVICE *Bridge,\r |
687 | IN UINT8 StartBusNumber,\r | |
688 | OUT UINT8 *SubBusNumber,\r | |
689 | OUT UINT8 *PaddedBusRange\r | |
690 | )\r | |
ead42efc | 691 | {\r |
692 | EFI_STATUS Status;\r | |
693 | PCI_TYPE00 Pci;\r | |
694 | UINT8 Device;\r | |
695 | UINT8 Func;\r | |
696 | UINT64 Address;\r | |
697 | UINTN SecondBus;\r | |
698 | UINT16 Register;\r | |
699 | UINTN HpIndex;\r | |
700 | PCI_IO_DEVICE *PciDevice;\r | |
701 | EFI_EVENT Event;\r | |
702 | EFI_HPC_STATE State;\r | |
703 | UINT64 PciAddress;\r | |
704 | EFI_HPC_PADDING_ATTRIBUTES Attributes;\r | |
705 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;\r | |
706 | UINT16 BusRange;\r | |
707 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;\r | |
708 | BOOLEAN BusPadding;\r | |
709 | \r | |
710 | PciRootBridgeIo = Bridge->PciRootBridgeIo;\r | |
711 | SecondBus = 0;\r | |
712 | Register = 0;\r | |
713 | State = 0;\r | |
714 | Attributes = (EFI_HPC_PADDING_ATTRIBUTES) 0;\r | |
715 | BusRange = 0;\r | |
8e8227d1 | 716 | BusPadding = FALSE;\r |
717 | PciDevice = NULL;\r | |
718 | PciAddress = 0;\r | |
ead42efc | 719 | \r |
ead42efc | 720 | for (Device = 0; Device <= PCI_MAX_DEVICE; Device++) {\r |
721 | for (Func = 0; Func <= PCI_MAX_FUNC; Func++) {\r | |
722 | \r | |
723 | //\r | |
724 | // Check to see whether a pci device is present\r | |
725 | //\r | |
726 | Status = PciDevicePresent (\r | |
727 | PciRootBridgeIo,\r | |
728 | &Pci,\r | |
729 | StartBusNumber,\r | |
730 | Device,\r | |
731 | Func\r | |
732 | );\r | |
733 | \r | |
734 | if (EFI_ERROR (Status)) {\r | |
735 | if (Func == 0) {\r | |
736 | //\r | |
737 | // Skip sub functions, this is not a multi function device\r | |
738 | //\r | |
739 | Func = PCI_MAX_FUNC;\r | |
740 | }\r | |
741 | \r | |
742 | continue;\r | |
743 | }\r | |
744 | \r | |
ff62de37 | 745 | DEBUG((EFI_D_ERROR, "Found DEV(%02d,%02d,%02d)\n", StartBusNumber, Device, Func ));\r |
4beb4afe | 746 | \r |
8e8227d1 | 747 | if (FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r |
748 | //\r | |
749 | // Get the PCI device information\r | |
750 | //\r | |
751 | Status = PciSearchDevice (\r | |
752 | Bridge,\r | |
753 | &Pci,\r | |
754 | StartBusNumber,\r | |
755 | Device,\r | |
756 | Func,\r | |
757 | &PciDevice\r | |
758 | );\r | |
ead42efc | 759 | \r |
8e8227d1 | 760 | ASSERT (!EFI_ERROR (Status));\r |
ead42efc | 761 | \r |
8e8227d1 | 762 | PciAddress = EFI_PCI_ADDRESS (StartBusNumber, Device, Func, 0);\r |
ead42efc | 763 | \r |
8e8227d1 | 764 | if (!IS_PCI_BRIDGE (&Pci)) {\r |
765 | //\r | |
766 | // PCI bridges will be called later\r | |
767 | // Here just need for PCI device or PCI to cardbus controller\r | |
768 | // EfiPciBeforeChildBusEnumeration for PCI Device Node\r | |
769 | //\r | |
770 | PreprocessController (\r | |
771 | PciDevice,\r | |
772 | PciDevice->BusNumber,\r | |
773 | PciDevice->DeviceNumber,\r | |
774 | PciDevice->FunctionNumber,\r | |
775 | EfiPciBeforeChildBusEnumeration\r | |
776 | );\r | |
777 | }\r | |
ead42efc | 778 | \r |
ead42efc | 779 | //\r |
8e8227d1 | 780 | // For Pci Hotplug controller devcie only\r |
ead42efc | 781 | //\r |
8e8227d1 | 782 | if (gPciHotPlugInit != NULL) {\r |
783 | //\r | |
784 | // Check if it is a Hotplug PCI controller\r | |
785 | //\r | |
786 | if (IsRootPciHotPlugController (PciDevice->DevicePath, &HpIndex)) {\r | |
ead42efc | 787 | \r |
8e8227d1 | 788 | if (!gPciRootHpcData[HpIndex].Initialized) {\r |
ead42efc | 789 | \r |
8e8227d1 | 790 | Status = CreateEventForHpc (HpIndex, &Event);\r |
ead42efc | 791 | \r |
8e8227d1 | 792 | ASSERT (!EFI_ERROR (Status));\r |
ead42efc | 793 | \r |
8e8227d1 | 794 | Status = gPciHotPlugInit->InitializeRootHpc (\r |
795 | gPciHotPlugInit,\r | |
796 | gPciRootHpcPool[HpIndex].HpcDevicePath,\r | |
797 | PciAddress,\r | |
798 | Event,\r | |
799 | &State\r | |
800 | );\r | |
ead42efc | 801 | \r |
8e8227d1 | 802 | PreprocessController (\r |
803 | PciDevice,\r | |
804 | PciDevice->BusNumber,\r | |
805 | PciDevice->DeviceNumber,\r | |
806 | PciDevice->FunctionNumber,\r | |
807 | EfiPciBeforeChildBusEnumeration\r | |
808 | );\r | |
809 | }\r | |
ead42efc | 810 | }\r |
811 | }\r | |
812 | }\r | |
813 | \r | |
814 | if (IS_PCI_BRIDGE (&Pci) || IS_CARDBUS_BRIDGE (&Pci)) {\r | |
815 | //\r | |
816 | // For PPB\r | |
ead42efc | 817 | //\r |
8e8227d1 | 818 | if (!FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r |
819 | //\r | |
820 | // If Hot Plug is not supported,\r | |
821 | // get the bridge information\r | |
822 | //\r | |
823 | Status = PciSearchDevice (\r | |
824 | Bridge,\r | |
825 | &Pci,\r | |
826 | StartBusNumber,\r | |
827 | Device,\r | |
828 | Func,\r | |
829 | &PciDevice\r | |
830 | );\r | |
ead42efc | 831 | \r |
8e8227d1 | 832 | if (EFI_ERROR (Status)) {\r |
833 | return Status;\r | |
834 | }\r | |
835 | } else {\r | |
836 | //\r | |
837 | // If Hot Plug is supported,\r | |
838 | // Get the bridge information\r | |
839 | //\r | |
840 | BusPadding = FALSE;\r | |
841 | if (gPciHotPlugInit != NULL) {\r | |
842 | \r | |
843 | if (IsRootPciHotPlugBus (PciDevice->DevicePath, &HpIndex)) {\r | |
844 | \r | |
845 | //\r | |
846 | // If it is initialized, get the padded bus range\r | |
847 | //\r | |
848 | Status = gPciHotPlugInit->GetResourcePadding (\r | |
849 | gPciHotPlugInit,\r | |
850 | gPciRootHpcPool[HpIndex].HpbDevicePath,\r | |
851 | PciAddress,\r | |
852 | &State,\r | |
853 | (VOID **) &Descriptors,\r | |
854 | &Attributes\r | |
855 | );\r | |
ead42efc | 856 | \r |
8e8227d1 | 857 | if (EFI_ERROR (Status)) {\r |
858 | return Status;\r | |
859 | }\r | |
ead42efc | 860 | \r |
8e8227d1 | 861 | BusRange = 0;\r |
862 | Status = PciGetBusRange (\r | |
863 | &Descriptors,\r | |
864 | NULL,\r | |
865 | NULL,\r | |
866 | &BusRange\r | |
867 | );\r | |
ead42efc | 868 | \r |
8e8227d1 | 869 | FreePool (Descriptors);\r |
ead42efc | 870 | \r |
8e8227d1 | 871 | if (EFI_ERROR (Status)) {\r |
872 | return Status;\r | |
873 | }\r | |
ead42efc | 874 | \r |
8e8227d1 | 875 | BusPadding = TRUE;\r |
876 | }\r | |
ead42efc | 877 | }\r |
878 | }\r | |
879 | \r | |
ff62de37 | 880 | //\r |
881 | // Add feature to support customized secondary bus number\r | |
882 | //\r | |
a3b8e257 | 883 | if (*SubBusNumber == 0) {\r |
ff62de37 | 884 | *SubBusNumber = *PaddedBusRange;\r |
885 | *PaddedBusRange = 0;\r | |
886 | }\r | |
887 | \r | |
ead42efc | 888 | (*SubBusNumber)++;\r |
889 | SecondBus = *SubBusNumber;\r | |
890 | \r | |
891 | Register = (UINT16) ((SecondBus << 8) | (UINT16) StartBusNumber);\r | |
8e8227d1 | 892 | Address = EFI_PCI_ADDRESS (StartBusNumber, Device, Func, PCI_BRIDGE_PRIMARY_BUS_REGISTER_OFFSET);\r |
ead42efc | 893 | \r |
9eb130ff | 894 | Status = PciRootBridgeIo->Pci.Write (\r |
ead42efc | 895 | PciRootBridgeIo,\r |
ead42efc | 896 | EfiPciWidthUint16,\r |
897 | Address,\r | |
898 | 1,\r | |
899 | &Register\r | |
900 | );\r | |
901 | \r | |
902 | \r | |
903 | //\r | |
904 | // If it is PPB, resursively search down this bridge\r | |
905 | //\r | |
906 | if (IS_PCI_BRIDGE (&Pci)) {\r | |
907 | \r | |
908 | //\r | |
8e8227d1 | 909 | // Temporarily initialize SubBusNumber to maximum bus number to ensure the\r |
910 | // PCI configuration transaction to go through any PPB\r | |
ead42efc | 911 | //\r |
912 | Register = 0xFF;\r | |
8e8227d1 | 913 | Address = EFI_PCI_ADDRESS (StartBusNumber, Device, Func, PCI_BRIDGE_SUBORDINATE_BUS_REGISTER_OFFSET);\r |
9eb130ff | 914 | Status = PciRootBridgeIo->Pci.Write (\r |
ead42efc | 915 | PciRootBridgeIo,\r |
ead42efc | 916 | EfiPciWidthUint8,\r |
917 | Address,\r | |
918 | 1,\r | |
919 | &Register\r | |
920 | );\r | |
921 | \r | |
922 | //\r | |
923 | // Nofify EfiPciBeforeChildBusEnumeration for PCI Brige\r | |
924 | //\r | |
925 | PreprocessController (\r | |
926 | PciDevice,\r | |
927 | PciDevice->BusNumber,\r | |
928 | PciDevice->DeviceNumber,\r | |
929 | PciDevice->FunctionNumber,\r | |
930 | EfiPciBeforeChildBusEnumeration\r | |
931 | );\r | |
932 | \r | |
8e8227d1 | 933 | DEBUG((EFI_D_ERROR, "Scan PPB(%02d,%02d,%02d)\n", PciDevice->BusNumber, PciDevice->DeviceNumber,PciDevice->FunctionNumber));\r |
ead42efc | 934 | Status = PciScanBus (\r |
935 | PciDevice,\r | |
936 | (UINT8) (SecondBus),\r | |
937 | SubBusNumber,\r | |
938 | PaddedBusRange\r | |
939 | );\r | |
ead42efc | 940 | if (EFI_ERROR (Status)) {\r |
8e8227d1 | 941 | return Status;\r |
ead42efc | 942 | }\r |
943 | }\r | |
944 | \r | |
8e8227d1 | 945 | if (FeaturePcdGet (PcdPciBusHotplugDeviceSupport) && BusPadding) {\r |
ead42efc | 946 | //\r |
947 | // Ensure the device is enabled and initialized\r | |
948 | //\r | |
949 | if ((Attributes == EfiPaddingPciRootBridge) &&\r | |
97404058 | 950 | (State & EFI_HPC_STATE_ENABLED) != 0 &&\r |
951 | (State & EFI_HPC_STATE_INITIALIZED) != 0) {\r | |
ead42efc | 952 | *PaddedBusRange = (UINT8) ((UINT8) (BusRange) +*PaddedBusRange);\r |
953 | } else {\r | |
954 | *SubBusNumber = (UINT8) ((UINT8) (BusRange) +*SubBusNumber);\r | |
955 | }\r | |
956 | }\r | |
957 | \r | |
958 | //\r | |
959 | // Set the current maximum bus number under the PPB\r | |
960 | //\r | |
8e8227d1 | 961 | Address = EFI_PCI_ADDRESS (StartBusNumber, Device, Func, PCI_BRIDGE_SUBORDINATE_BUS_REGISTER_OFFSET);\r |
ead42efc | 962 | \r |
9eb130ff | 963 | Status = PciRootBridgeIo->Pci.Write (\r |
ead42efc | 964 | PciRootBridgeIo,\r |
ead42efc | 965 | EfiPciWidthUint8,\r |
966 | Address,\r | |
967 | 1,\r | |
968 | SubBusNumber\r | |
969 | );\r | |
970 | }\r | |
971 | \r | |
972 | if (Func == 0 && !IS_PCI_MULTI_FUNC (&Pci)) {\r | |
973 | \r | |
974 | //\r | |
975 | // Skip sub functions, this is not a multi function device\r | |
976 | //\r | |
8e8227d1 | 977 | \r |
ead42efc | 978 | Func = PCI_MAX_FUNC;\r |
979 | }\r | |
ead42efc | 980 | }\r |
981 | }\r | |
982 | \r | |
983 | return EFI_SUCCESS;\r | |
984 | }\r | |
985 | \r | |
57076f45 | 986 | /**\r |
8e8227d1 | 987 | Process Option Rom on the specified root bridge.\r |
988 | \r | |
989 | @param Bridge Pci root bridge device instance.\r | |
990 | \r | |
991 | @retval EFI_SUCCESS Success process.\r | |
992 | @retval other Some error occurred when processing Option Rom on the root bridge.\r | |
993 | \r | |
57076f45 | 994 | **/\r |
ead42efc | 995 | EFI_STATUS\r |
996 | PciRootBridgeP2CProcess (\r | |
997 | IN PCI_IO_DEVICE *Bridge\r | |
998 | )\r | |
ead42efc | 999 | {\r |
1000 | LIST_ENTRY *CurrentLink;\r | |
1001 | PCI_IO_DEVICE *Temp;\r | |
1002 | EFI_HPC_STATE State;\r | |
1003 | UINT64 PciAddress;\r | |
1004 | EFI_STATUS Status;\r | |
1005 | \r | |
1006 | CurrentLink = Bridge->ChildList.ForwardLink;\r | |
1007 | \r | |
97404058 | 1008 | while (CurrentLink != NULL && CurrentLink != &Bridge->ChildList) {\r |
ead42efc | 1009 | \r |
1010 | Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);\r | |
1011 | \r | |
1012 | if (IS_CARDBUS_BRIDGE (&Temp->Pci)) {\r | |
1013 | \r | |
8e8227d1 | 1014 | if (gPciHotPlugInit != NULL && Temp->Allocated && FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r |
ead42efc | 1015 | \r |
1016 | //\r | |
1017 | // Raise the EFI_IOB_PCI_HPC_INIT status code\r | |
1018 | //\r | |
1019 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
1020 | EFI_PROGRESS_CODE,\r | |
1021 | EFI_IO_BUS_PCI | EFI_IOB_PCI_PC_HPC_INIT,\r | |
1022 | Temp->DevicePath\r | |
1023 | );\r | |
1024 | \r | |
1025 | PciAddress = EFI_PCI_ADDRESS (Temp->BusNumber, Temp->DeviceNumber, Temp->FunctionNumber, 0);\r | |
1026 | Status = gPciHotPlugInit->InitializeRootHpc (\r | |
1027 | gPciHotPlugInit,\r | |
1028 | Temp->DevicePath,\r | |
1029 | PciAddress,\r | |
1030 | NULL,\r | |
1031 | &State\r | |
1032 | );\r | |
1033 | \r | |
1034 | if (!EFI_ERROR (Status)) {\r | |
1035 | Status = PciBridgeEnumerator (Temp);\r | |
1036 | \r | |
1037 | if (EFI_ERROR (Status)) {\r | |
1038 | return Status;\r | |
1039 | }\r | |
1040 | }\r | |
1041 | \r | |
1042 | CurrentLink = CurrentLink->ForwardLink;\r | |
1043 | continue;\r | |
1044 | \r | |
1045 | }\r | |
1046 | }\r | |
1047 | \r | |
1048 | if (!IsListEmpty (&Temp->ChildList)) {\r | |
1049 | Status = PciRootBridgeP2CProcess (Temp);\r | |
1050 | }\r | |
1051 | \r | |
1052 | CurrentLink = CurrentLink->ForwardLink;\r | |
1053 | }\r | |
1054 | \r | |
1055 | return EFI_SUCCESS;\r | |
1056 | }\r | |
1057 | \r | |
a3b8e257 | 1058 | /**\r |
8e8227d1 | 1059 | Process Option Rom on the specified host bridge.\r |
1060 | \r | |
1061 | @param PciResAlloc Pointer to instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.\r | |
1062 | \r | |
eeefcb9d | 1063 | @retval EFI_SUCCESS Success process.\r |
8e8227d1 | 1064 | @retval EFI_NOT_FOUND Can not find the root bridge instance.\r |
1065 | @retval other Some error occurred when processing Option Rom on the host bridge.\r | |
1066 | \r | |
a3b8e257 | 1067 | **/\r |
ead42efc | 1068 | EFI_STATUS\r |
1069 | PciHostBridgeP2CProcess (\r | |
1070 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r | |
1071 | )\r | |
ead42efc | 1072 | {\r |
1073 | EFI_HANDLE RootBridgeHandle;\r | |
1074 | PCI_IO_DEVICE *RootBridgeDev;\r | |
1075 | EFI_STATUS Status;\r | |
1076 | \r | |
1077 | if (!FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r | |
1078 | return EFI_SUCCESS;\r | |
1079 | }\r | |
1080 | \r | |
1081 | RootBridgeHandle = NULL;\r | |
1082 | \r | |
1083 | while (PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) {\r | |
1084 | \r | |
1085 | //\r | |
1086 | // Get RootBridg Device by handle\r | |
1087 | //\r | |
1088 | RootBridgeDev = GetRootBridgeByHandle (RootBridgeHandle);\r | |
1089 | \r | |
1090 | if (RootBridgeDev == NULL) {\r | |
1091 | return EFI_NOT_FOUND;\r | |
1092 | }\r | |
1093 | \r | |
1094 | Status = PciRootBridgeP2CProcess (RootBridgeDev);\r | |
ead42efc | 1095 | if (EFI_ERROR (Status)) {\r |
1096 | return Status;\r | |
1097 | }\r | |
1098 | \r | |
1099 | }\r | |
1100 | \r | |
1101 | return EFI_SUCCESS;\r | |
1102 | }\r | |
1103 | \r | |
bcd70414 | 1104 | /**\r |
ead42efc | 1105 | This function is used to enumerate the entire host bridge\r |
eeefcb9d | 1106 | in a given platform.\r |
ead42efc | 1107 | \r |
8e8227d1 | 1108 | @param PciResAlloc A pointer to the PCI Host Resource Allocation protocol.\r |
ead42efc | 1109 | \r |
8e8227d1 | 1110 | @retval EFI_SUCCESS Successfully enumerated the host bridge.\r |
1111 | @retval EFI_OUT_OF_RESOURCES No enough memory available.\r | |
1112 | @retval other Some error occurred when enumerating the host bridge.\r | |
ead42efc | 1113 | \r |
bcd70414 | 1114 | **/\r |
57076f45 | 1115 | EFI_STATUS\r |
1116 | PciHostBridgeEnumerator (\r | |
9eb130ff | 1117 | IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r |
57076f45 | 1118 | )\r |
ead42efc | 1119 | {\r |
1120 | EFI_HANDLE RootBridgeHandle;\r | |
1121 | PCI_IO_DEVICE *RootBridgeDev;\r | |
1122 | EFI_STATUS Status;\r | |
1123 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;\r | |
1124 | UINT16 MinBus;\r | |
1125 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;\r | |
5326528b | 1126 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Configuration;\r |
4beb4afe | 1127 | UINT8 StartBusNumber;\r |
1128 | LIST_ENTRY RootBridgeList;\r | |
1129 | LIST_ENTRY *Link;\r | |
ead42efc | 1130 | \r |
8e8227d1 | 1131 | if (FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r |
1132 | InitializeHotPlugSupport ();\r | |
1133 | }\r | |
ead42efc | 1134 | \r |
4beb4afe | 1135 | InitializeListHead (&RootBridgeList);\r |
1136 | \r | |
ead42efc | 1137 | //\r |
1138 | // Notify the bus allocation phase is about to start\r | |
1139 | //\r | |
1140 | NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginBusAllocation);\r | |
1141 | \r | |
ff62de37 | 1142 | DEBUG((EFI_D_ERROR, "PCI Bus First Scanning\n"));\r |
ead42efc | 1143 | RootBridgeHandle = NULL;\r |
1144 | while (PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) {\r | |
1145 | \r | |
1146 | //\r | |
1147 | // if a root bridge instance is found, create root bridge device for it\r | |
1148 | //\r | |
1149 | \r | |
1150 | RootBridgeDev = CreateRootBridge (RootBridgeHandle);\r | |
1151 | \r | |
1152 | if (RootBridgeDev == NULL) {\r | |
1153 | return EFI_OUT_OF_RESOURCES;\r | |
1154 | }\r | |
1155 | \r | |
1156 | //\r | |
1157 | // Enumerate all the buses under this root bridge\r | |
1158 | //\r | |
ead42efc | 1159 | Status = PciRootBridgeEnumerator (\r |
1160 | PciResAlloc,\r | |
1161 | RootBridgeDev\r | |
1162 | );\r | |
1163 | \r | |
8e8227d1 | 1164 | if (gPciHotPlugInit != NULL && FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r |
4beb4afe | 1165 | InsertTailList (&RootBridgeList, &(RootBridgeDev->Link));\r |
1166 | } else {\r | |
1167 | DestroyRootBridge (RootBridgeDev);\r | |
1168 | }\r | |
ead42efc | 1169 | if (EFI_ERROR (Status)) {\r |
1170 | return Status;\r | |
1171 | }\r | |
1172 | }\r | |
1173 | \r | |
1174 | //\r | |
1175 | // Notify the bus allocation phase is finished for the first time\r | |
1176 | //\r | |
1177 | NotifyPhase (PciResAlloc, EfiPciHostBridgeEndBusAllocation);\r | |
1178 | \r | |
8e8227d1 | 1179 | if (gPciHotPlugInit != NULL && FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {\r |
1180 | //\r | |
1181 | // Reset all assigned PCI bus number in all PPB\r | |
1182 | //\r | |
1183 | RootBridgeHandle = NULL;\r | |
1184 | Link = GetFirstNode (&RootBridgeList);\r | |
1185 | while ((PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) &&\r | |
1186 | (!IsNull (&RootBridgeList, Link))) {\r | |
1187 | RootBridgeDev = PCI_IO_DEVICE_FROM_LINK (Link);\r | |
ead42efc | 1188 | //\r |
8e8227d1 | 1189 | // Get the Bus information\r |
4beb4afe | 1190 | //\r |
8e8227d1 | 1191 | Status = PciResAlloc->StartBusEnumeration (\r |
1192 | PciResAlloc,\r | |
1193 | RootBridgeHandle,\r | |
1194 | (VOID **) &Configuration\r | |
1195 | );\r | |
ead42efc | 1196 | if (EFI_ERROR (Status)) {\r |
1197 | return Status;\r | |
1198 | }\r | |
1199 | \r | |
1200 | //\r | |
8e8227d1 | 1201 | // Get the bus number to start with\r |
ead42efc | 1202 | //\r |
8e8227d1 | 1203 | StartBusNumber = (UINT8) (Configuration->AddrRangeMin);\r |
ead42efc | 1204 | \r |
8e8227d1 | 1205 | ResetAllPpbBusNumber (\r |
1206 | RootBridgeDev,\r | |
1207 | StartBusNumber\r | |
1208 | );\r | |
ead42efc | 1209 | \r |
8e8227d1 | 1210 | FreePool (Configuration);\r |
1211 | Link = GetNextNode (&RootBridgeList, Link);\r | |
1212 | DestroyRootBridge (RootBridgeDev);\r | |
1213 | }\r | |
ead42efc | 1214 | \r |
8e8227d1 | 1215 | //\r |
1216 | // Wait for all HPC initialized\r | |
1217 | //\r | |
1218 | Status = AllRootHPCInitialized (STALL_1_SECOND * 15);\r | |
ead42efc | 1219 | \r |
8e8227d1 | 1220 | if (EFI_ERROR (Status)) {\r |
1221 | return Status;\r | |
1222 | }\r | |
ead42efc | 1223 | \r |
8e8227d1 | 1224 | //\r |
1225 | // Notify the bus allocation phase is about to start for the 2nd time\r | |
1226 | //\r | |
1227 | NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginBusAllocation);\r | |
ead42efc | 1228 | \r |
8e8227d1 | 1229 | DEBUG((EFI_D_ERROR, "PCI Bus Second Scanning\n"));\r |
1230 | RootBridgeHandle = NULL;\r | |
1231 | while (PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) {\r | |
ead42efc | 1232 | \r |
8e8227d1 | 1233 | //\r |
1234 | // if a root bridge instance is found, create root bridge device for it\r | |
1235 | //\r | |
1236 | RootBridgeDev = CreateRootBridge (RootBridgeHandle);\r | |
1237 | \r | |
1238 | if (RootBridgeDev == NULL) {\r | |
1239 | return EFI_OUT_OF_RESOURCES;\r | |
ead42efc | 1240 | }\r |
1241 | \r | |
1242 | //\r | |
8e8227d1 | 1243 | // Enumerate all the buses under this root bridge\r |
ead42efc | 1244 | //\r |
8e8227d1 | 1245 | Status = PciRootBridgeEnumerator (\r |
1246 | PciResAlloc,\r | |
1247 | RootBridgeDev\r | |
1248 | );\r | |
1249 | \r | |
1250 | DestroyRootBridge (RootBridgeDev);\r | |
1251 | if (EFI_ERROR (Status)) {\r | |
1252 | return Status;\r | |
1253 | }\r | |
ead42efc | 1254 | }\r |
8e8227d1 | 1255 | \r |
1256 | //\r | |
1257 | // Notify the bus allocation phase is to end for the 2nd time\r | |
1258 | //\r | |
1259 | NotifyPhase (PciResAlloc, EfiPciHostBridgeEndBusAllocation);\r | |
ead42efc | 1260 | }\r |
1261 | \r | |
1262 | //\r | |
1263 | // Notify the resource allocation phase is to start\r | |
1264 | //\r | |
1265 | NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginResourceAllocation);\r | |
1266 | \r | |
1267 | RootBridgeHandle = NULL;\r | |
1268 | while (PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) {\r | |
1269 | \r | |
1270 | //\r | |
1271 | // if a root bridge instance is found, create root bridge device for it\r | |
1272 | //\r | |
ead42efc | 1273 | RootBridgeDev = CreateRootBridge (RootBridgeHandle);\r |
1274 | \r | |
1275 | if (RootBridgeDev == NULL) {\r | |
1276 | return EFI_OUT_OF_RESOURCES;\r | |
1277 | }\r | |
1278 | \r | |
1279 | Status = StartManagingRootBridge (RootBridgeDev);\r | |
1280 | \r | |
1281 | if (EFI_ERROR (Status)) {\r | |
1282 | return Status;\r | |
1283 | }\r | |
1284 | \r | |
1285 | PciRootBridgeIo = RootBridgeDev->PciRootBridgeIo;\r | |
1286 | Status = PciRootBridgeIo->Configuration (PciRootBridgeIo, (VOID **) &Descriptors);\r | |
1287 | \r | |
1288 | if (EFI_ERROR (Status)) {\r | |
1289 | return Status;\r | |
1290 | }\r | |
1291 | \r | |
1292 | Status = PciGetBusRange (&Descriptors, &MinBus, NULL, NULL);\r | |
1293 | \r | |
1294 | if (EFI_ERROR (Status)) {\r | |
1295 | return Status;\r | |
1296 | }\r | |
1297 | \r | |
1298 | //\r | |
1299 | // Determine root bridge attribute by calling interface of Pcihostbridge\r | |
1300 | // protocol\r | |
1301 | //\r | |
1302 | DetermineRootBridgeAttributes (\r | |
1303 | PciResAlloc,\r | |
1304 | RootBridgeDev\r | |
1305 | );\r | |
1306 | \r | |
1307 | //\r | |
1308 | // Collect all the resource information under this root bridge\r | |
1309 | // A database that records all the information about pci device subject to this\r | |
1310 | // root bridge will then be created\r | |
1311 | //\r | |
1312 | Status = PciPciDeviceInfoCollector (\r | |
1313 | RootBridgeDev,\r | |
1314 | (UINT8) MinBus\r | |
1315 | );\r | |
1316 | \r | |
1317 | if (EFI_ERROR (Status)) {\r | |
1318 | return Status;\r | |
1319 | }\r | |
1320 | \r | |
1321 | InsertRootBridge (RootBridgeDev);\r | |
1322 | \r | |
1323 | //\r | |
1324 | // Record the hostbridge handle\r | |
1325 | //\r | |
1326 | AddHostBridgeEnumerator (RootBridgeDev->PciRootBridgeIo->ParentHandle);\r | |
1327 | }\r | |
1328 | \r | |
1329 | return EFI_SUCCESS;\r | |
1330 | }\r |