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d4cb9a30 AB |
1 | /** @file\r |
2 | PCI Host Bridge Library instance for pci-ecam-generic DT nodes\r | |
3 | \r | |
4 | Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>\r | |
5 | \r | |
9792fb0e | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
d4cb9a30 AB |
7 | \r |
8 | **/\r | |
9 | #include <PiDxe.h>\r | |
10 | #include <Library/PciHostBridgeLib.h>\r | |
11 | #include <Library/DebugLib.h>\r | |
12 | #include <Library/DevicePathLib.h>\r | |
66e06a72 | 13 | #include <Library/DxeServicesTableLib.h>\r |
d4cb9a30 AB |
14 | #include <Library/MemoryAllocationLib.h>\r |
15 | #include <Library/PcdLib.h>\r | |
16 | #include <Library/UefiBootServicesTableLib.h>\r | |
17 | \r | |
18 | #include <Protocol/FdtClient.h>\r | |
19 | #include <Protocol/PciRootBridgeIo.h>\r | |
20 | #include <Protocol/PciHostBridgeResourceAllocation.h>\r | |
21 | \r | |
22 | #pragma pack(1)\r | |
23 | typedef struct {\r | |
24 | ACPI_HID_DEVICE_PATH AcpiDevicePath;\r | |
25 | EFI_DEVICE_PATH_PROTOCOL EndDevicePath;\r | |
26 | } EFI_PCI_ROOT_BRIDGE_DEVICE_PATH;\r | |
27 | #pragma pack ()\r | |
28 | \r | |
29 | STATIC EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath = {\r | |
30 | {\r | |
31 | {\r | |
32 | ACPI_DEVICE_PATH,\r | |
33 | ACPI_DP,\r | |
34 | {\r | |
35 | (UINT8) (sizeof(ACPI_HID_DEVICE_PATH)),\r | |
36 | (UINT8) ((sizeof(ACPI_HID_DEVICE_PATH)) >> 8)\r | |
37 | }\r | |
38 | },\r | |
39 | EISA_PNP_ID(0x0A03),\r | |
40 | 0\r | |
41 | },\r | |
42 | \r | |
43 | {\r | |
44 | END_DEVICE_PATH_TYPE,\r | |
45 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
46 | {\r | |
47 | END_DEVICE_PATH_LENGTH,\r | |
48 | 0\r | |
49 | }\r | |
50 | }\r | |
51 | };\r | |
52 | \r | |
53 | GLOBAL_REMOVE_IF_UNREFERENCED\r | |
54 | CHAR16 *mPciHostBridgeLibAcpiAddressSpaceTypeStr[] = {\r | |
55 | L"Mem", L"I/O", L"Bus"\r | |
56 | };\r | |
57 | \r | |
58 | //\r | |
59 | // We expect the "ranges" property of "pci-host-ecam-generic" to consist of\r | |
60 | // records like this.\r | |
61 | //\r | |
62 | #pragma pack (1)\r | |
63 | typedef struct {\r | |
64 | UINT32 Type;\r | |
65 | UINT64 ChildBase;\r | |
66 | UINT64 CpuBase;\r | |
67 | UINT64 Size;\r | |
68 | } DTB_PCI_HOST_RANGE_RECORD;\r | |
69 | #pragma pack ()\r | |
70 | \r | |
71 | #define DTB_PCI_HOST_RANGE_RELOCATABLE BIT31\r | |
72 | #define DTB_PCI_HOST_RANGE_PREFETCHABLE BIT30\r | |
73 | #define DTB_PCI_HOST_RANGE_ALIASED BIT29\r | |
74 | #define DTB_PCI_HOST_RANGE_MMIO32 BIT25\r | |
75 | #define DTB_PCI_HOST_RANGE_MMIO64 (BIT25 | BIT24)\r | |
76 | #define DTB_PCI_HOST_RANGE_IO BIT24\r | |
77 | #define DTB_PCI_HOST_RANGE_TYPEMASK (BIT31 | BIT30 | BIT29 | BIT25 | BIT24)\r | |
78 | \r | |
66e06a72 AB |
79 | STATIC\r |
80 | EFI_STATUS\r | |
81 | MapGcdMmioSpace (\r | |
82 | IN UINT64 Base,\r | |
83 | IN UINT64 Size\r | |
84 | )\r | |
85 | {\r | |
86 | EFI_STATUS Status;\r | |
87 | \r | |
88 | Status = gDS->AddMemorySpace (EfiGcdMemoryTypeMemoryMappedIo, Base, Size,\r | |
89 | EFI_MEMORY_UC);\r | |
90 | if (EFI_ERROR (Status)) {\r | |
91 | DEBUG ((DEBUG_ERROR,\r | |
92 | "%a: failed to add GCD memory space for region [0x%Lx+0x%Lx)\n",\r | |
93 | __FUNCTION__, Base, Size));\r | |
94 | return Status;\r | |
95 | }\r | |
96 | \r | |
97 | Status = gDS->SetMemorySpaceAttributes (Base, Size, EFI_MEMORY_UC);\r | |
98 | if (EFI_ERROR (Status)) {\r | |
99 | DEBUG ((DEBUG_ERROR,\r | |
100 | "%a: failed to set memory space attributes for region [0x%Lx+0x%Lx)\n",\r | |
101 | __FUNCTION__, Base, Size));\r | |
102 | }\r | |
103 | return Status;\r | |
104 | }\r | |
105 | \r | |
d4cb9a30 AB |
106 | STATIC\r |
107 | EFI_STATUS\r | |
108 | ProcessPciHost (\r | |
109 | OUT UINT64 *IoBase,\r | |
110 | OUT UINT64 *IoSize,\r | |
9d64ac23 AB |
111 | OUT UINT64 *Mmio32Base,\r |
112 | OUT UINT64 *Mmio32Size,\r | |
113 | OUT UINT64 *Mmio64Base,\r | |
114 | OUT UINT64 *Mmio64Size,\r | |
d4cb9a30 AB |
115 | OUT UINT32 *BusMin,\r |
116 | OUT UINT32 *BusMax\r | |
117 | )\r | |
118 | {\r | |
119 | FDT_CLIENT_PROTOCOL *FdtClient;\r | |
120 | INT32 Node;\r | |
121 | UINT64 ConfigBase, ConfigSize;\r | |
122 | CONST VOID *Prop;\r | |
123 | UINT32 Len;\r | |
124 | UINT32 RecordIdx;\r | |
125 | EFI_STATUS Status;\r | |
126 | UINT64 IoTranslation;\r | |
9d64ac23 AB |
127 | UINT64 Mmio32Translation;\r |
128 | UINT64 Mmio64Translation;\r | |
d4cb9a30 AB |
129 | \r |
130 | //\r | |
131 | // The following output arguments are initialized only in\r | |
132 | // order to suppress '-Werror=maybe-uninitialized' warnings\r | |
133 | // *incorrectly* emitted by some gcc versions.\r | |
134 | //\r | |
135 | *IoBase = 0;\r | |
9d64ac23 AB |
136 | *Mmio32Base = 0;\r |
137 | *Mmio64Base = MAX_UINT64;\r | |
d4cb9a30 AB |
138 | *BusMin = 0;\r |
139 | *BusMax = 0;\r | |
140 | \r | |
141 | //\r | |
9d64ac23 | 142 | // *IoSize, *Mmio##Size and IoTranslation are initialized to zero because the\r |
d4cb9a30 AB |
143 | // logic below requires it. However, since they are also affected by the issue\r |
144 | // reported above, they are initialized early.\r | |
145 | //\r | |
146 | *IoSize = 0;\r | |
9d64ac23 AB |
147 | *Mmio32Size = 0;\r |
148 | *Mmio64Size = 0;\r | |
d4cb9a30 AB |
149 | IoTranslation = 0;\r |
150 | \r | |
151 | Status = gBS->LocateProtocol (&gFdtClientProtocolGuid, NULL,\r | |
152 | (VOID **)&FdtClient);\r | |
153 | ASSERT_EFI_ERROR (Status);\r | |
154 | \r | |
155 | Status = FdtClient->FindCompatibleNode (FdtClient, "pci-host-ecam-generic",\r | |
156 | &Node);\r | |
157 | if (EFI_ERROR (Status)) {\r | |
158 | DEBUG ((EFI_D_INFO,\r | |
159 | "%a: No 'pci-host-ecam-generic' compatible DT node found\n",\r | |
160 | __FUNCTION__));\r | |
161 | return EFI_NOT_FOUND;\r | |
162 | }\r | |
163 | \r | |
164 | DEBUG_CODE (\r | |
165 | INT32 Tmp;\r | |
166 | \r | |
167 | //\r | |
168 | // A DT can legally describe multiple PCI host bridges, but we are not\r | |
169 | // equipped to deal with that. So assert that there is only one.\r | |
170 | //\r | |
171 | Status = FdtClient->FindNextCompatibleNode (FdtClient,\r | |
172 | "pci-host-ecam-generic", Node, &Tmp);\r | |
173 | ASSERT (Status == EFI_NOT_FOUND);\r | |
174 | );\r | |
175 | \r | |
176 | Status = FdtClient->GetNodeProperty (FdtClient, Node, "reg", &Prop, &Len);\r | |
177 | if (EFI_ERROR (Status) || Len != 2 * sizeof (UINT64)) {\r | |
178 | DEBUG ((EFI_D_ERROR, "%a: 'reg' property not found or invalid\n",\r | |
179 | __FUNCTION__));\r | |
180 | return EFI_PROTOCOL_ERROR;\r | |
181 | }\r | |
182 | \r | |
183 | //\r | |
184 | // Fetch the ECAM window.\r | |
185 | //\r | |
186 | ConfigBase = SwapBytes64 (((CONST UINT64 *)Prop)[0]);\r | |
187 | ConfigSize = SwapBytes64 (((CONST UINT64 *)Prop)[1]);\r | |
188 | \r | |
189 | //\r | |
190 | // Fetch the bus range (note: inclusive).\r | |
191 | //\r | |
192 | Status = FdtClient->GetNodeProperty (FdtClient, Node, "bus-range", &Prop,\r | |
193 | &Len);\r | |
194 | if (EFI_ERROR (Status) || Len != 2 * sizeof (UINT32)) {\r | |
195 | DEBUG ((EFI_D_ERROR, "%a: 'bus-range' not found or invalid\n",\r | |
196 | __FUNCTION__));\r | |
197 | return EFI_PROTOCOL_ERROR;\r | |
198 | }\r | |
199 | *BusMin = SwapBytes32 (((CONST UINT32 *)Prop)[0]);\r | |
200 | *BusMax = SwapBytes32 (((CONST UINT32 *)Prop)[1]);\r | |
201 | \r | |
202 | //\r | |
203 | // Sanity check: the config space must accommodate all 4K register bytes of\r | |
204 | // all 8 functions of all 32 devices of all buses.\r | |
205 | //\r | |
206 | if (*BusMax < *BusMin || *BusMax - *BusMin == MAX_UINT32 ||\r | |
207 | DivU64x32 (ConfigSize, SIZE_4KB * 8 * 32) < *BusMax - *BusMin + 1) {\r | |
208 | DEBUG ((EFI_D_ERROR, "%a: invalid 'bus-range' and/or 'reg'\n",\r | |
209 | __FUNCTION__));\r | |
210 | return EFI_PROTOCOL_ERROR;\r | |
211 | }\r | |
212 | \r | |
213 | //\r | |
214 | // Iterate over "ranges".\r | |
215 | //\r | |
216 | Status = FdtClient->GetNodeProperty (FdtClient, Node, "ranges", &Prop, &Len);\r | |
217 | if (EFI_ERROR (Status) || Len == 0 ||\r | |
218 | Len % sizeof (DTB_PCI_HOST_RANGE_RECORD) != 0) {\r | |
219 | DEBUG ((EFI_D_ERROR, "%a: 'ranges' not found or invalid\n", __FUNCTION__));\r | |
220 | return EFI_PROTOCOL_ERROR;\r | |
221 | }\r | |
222 | \r | |
223 | for (RecordIdx = 0; RecordIdx < Len / sizeof (DTB_PCI_HOST_RANGE_RECORD);\r | |
224 | ++RecordIdx) {\r | |
225 | CONST DTB_PCI_HOST_RANGE_RECORD *Record;\r | |
226 | \r | |
227 | Record = (CONST DTB_PCI_HOST_RANGE_RECORD *)Prop + RecordIdx;\r | |
228 | switch (SwapBytes32 (Record->Type) & DTB_PCI_HOST_RANGE_TYPEMASK) {\r | |
229 | case DTB_PCI_HOST_RANGE_IO:\r | |
230 | *IoBase = SwapBytes64 (Record->ChildBase);\r | |
231 | *IoSize = SwapBytes64 (Record->Size);\r | |
232 | IoTranslation = SwapBytes64 (Record->CpuBase) - *IoBase;\r | |
233 | \r | |
234 | ASSERT (PcdGet64 (PcdPciIoTranslation) == IoTranslation);\r | |
235 | break;\r | |
236 | \r | |
237 | case DTB_PCI_HOST_RANGE_MMIO32:\r | |
9d64ac23 AB |
238 | *Mmio32Base = SwapBytes64 (Record->ChildBase);\r |
239 | *Mmio32Size = SwapBytes64 (Record->Size);\r | |
240 | Mmio32Translation = SwapBytes64 (Record->CpuBase) - *Mmio32Base;\r | |
d4cb9a30 | 241 | \r |
9d64ac23 AB |
242 | if (*Mmio32Base > MAX_UINT32 || *Mmio32Size > MAX_UINT32 ||\r |
243 | *Mmio32Base + *Mmio32Size > SIZE_4GB) {\r | |
d4cb9a30 AB |
244 | DEBUG ((EFI_D_ERROR, "%a: MMIO32 space invalid\n", __FUNCTION__));\r |
245 | return EFI_PROTOCOL_ERROR;\r | |
246 | }\r | |
247 | \r | |
9d64ac23 | 248 | ASSERT (PcdGet64 (PcdPciMmio32Translation) == Mmio32Translation);\r |
d4cb9a30 | 249 | \r |
9d64ac23 | 250 | if (Mmio32Translation != 0) {\r |
d4cb9a30 | 251 | DEBUG ((EFI_D_ERROR, "%a: unsupported nonzero MMIO32 translation "\r |
9d64ac23 AB |
252 | "0x%Lx\n", __FUNCTION__, Mmio32Translation));\r |
253 | return EFI_UNSUPPORTED;\r | |
254 | }\r | |
255 | \r | |
256 | break;\r | |
257 | \r | |
258 | case DTB_PCI_HOST_RANGE_MMIO64:\r | |
259 | *Mmio64Base = SwapBytes64 (Record->ChildBase);\r | |
260 | *Mmio64Size = SwapBytes64 (Record->Size);\r | |
261 | Mmio64Translation = SwapBytes64 (Record->CpuBase) - *Mmio64Base;\r | |
262 | \r | |
263 | ASSERT (PcdGet64 (PcdPciMmio64Translation) == Mmio64Translation);\r | |
264 | \r | |
265 | if (Mmio64Translation != 0) {\r | |
266 | DEBUG ((EFI_D_ERROR, "%a: unsupported nonzero MMIO64 translation "\r | |
267 | "0x%Lx\n", __FUNCTION__, Mmio64Translation));\r | |
d4cb9a30 AB |
268 | return EFI_UNSUPPORTED;\r |
269 | }\r | |
270 | \r | |
271 | break;\r | |
272 | }\r | |
273 | }\r | |
9d64ac23 | 274 | if (*IoSize == 0 || *Mmio32Size == 0) {\r |
d4cb9a30 AB |
275 | DEBUG ((EFI_D_ERROR, "%a: %a space empty\n", __FUNCTION__,\r |
276 | (*IoSize == 0) ? "IO" : "MMIO32"));\r | |
277 | return EFI_PROTOCOL_ERROR;\r | |
278 | }\r | |
279 | \r | |
280 | //\r | |
281 | // The dynamic PCD PcdPciExpressBaseAddress should have already been set,\r | |
282 | // and should match the value we found in the DT node.\r | |
283 | //\r | |
284 | ASSERT (PcdGet64 (PcdPciExpressBaseAddress) == ConfigBase);\r | |
285 | \r | |
286 | DEBUG ((EFI_D_INFO, "%a: Config[0x%Lx+0x%Lx) Bus[0x%x..0x%x] "\r | |
9d64ac23 AB |
287 | "Io[0x%Lx+0x%Lx)@0x%Lx Mem32[0x%Lx+0x%Lx)@0x0 Mem64[0x%Lx+0x%Lx)@0x0\n",\r |
288 | __FUNCTION__, ConfigBase, ConfigSize, *BusMin, *BusMax, *IoBase, *IoSize,\r | |
289 | IoTranslation, *Mmio32Base, *Mmio32Size, *Mmio64Base, *Mmio64Size));\r | |
66e06a72 AB |
290 | \r |
291 | // Map the ECAM space in the GCD memory map\r | |
292 | Status = MapGcdMmioSpace (ConfigBase, ConfigSize);\r | |
293 | ASSERT_EFI_ERROR (Status);\r | |
294 | if (EFI_ERROR (Status)) {\r | |
295 | return Status;\r | |
296 | }\r | |
297 | \r | |
298 | //\r | |
299 | // Map the MMIO window that provides I/O access - the PCI host bridge code\r | |
300 | // is not aware of this translation and so it will only map the I/O view\r | |
301 | // in the GCD I/O map.\r | |
302 | //\r | |
303 | Status = MapGcdMmioSpace (*IoBase + IoTranslation, *IoSize);\r | |
304 | ASSERT_EFI_ERROR (Status);\r | |
305 | \r | |
306 | return Status;\r | |
d4cb9a30 AB |
307 | }\r |
308 | \r | |
309 | STATIC PCI_ROOT_BRIDGE mRootBridge;\r | |
310 | \r | |
311 | /**\r | |
312 | Return all the root bridge instances in an array.\r | |
313 | \r | |
314 | @param Count Return the count of root bridge instances.\r | |
315 | \r | |
316 | @return All the root bridge instances in an array.\r | |
317 | The array should be passed into PciHostBridgeFreeRootBridges()\r | |
318 | when it's not used.\r | |
319 | **/\r | |
320 | PCI_ROOT_BRIDGE *\r | |
321 | EFIAPI\r | |
322 | PciHostBridgeGetRootBridges (\r | |
323 | UINTN *Count\r | |
324 | )\r | |
325 | {\r | |
326 | UINT64 IoBase, IoSize;\r | |
327 | UINT64 Mmio32Base, Mmio32Size;\r | |
9d64ac23 | 328 | UINT64 Mmio64Base, Mmio64Size;\r |
d4cb9a30 AB |
329 | UINT32 BusMin, BusMax;\r |
330 | EFI_STATUS Status;\r | |
331 | \r | |
332 | if (PcdGet64 (PcdPciExpressBaseAddress) == 0) {\r | |
333 | DEBUG ((EFI_D_INFO, "%a: PCI host bridge not present\n", __FUNCTION__));\r | |
334 | \r | |
335 | *Count = 0;\r | |
336 | return NULL;\r | |
337 | }\r | |
338 | \r | |
9d64ac23 AB |
339 | Status = ProcessPciHost (&IoBase, &IoSize, &Mmio32Base, &Mmio32Size,\r |
340 | &Mmio64Base, &Mmio64Size, &BusMin, &BusMax);\r | |
d4cb9a30 AB |
341 | if (EFI_ERROR (Status)) {\r |
342 | DEBUG ((EFI_D_ERROR, "%a: failed to discover PCI host bridge: %r\n",\r | |
343 | __FUNCTION__, Status));\r | |
344 | *Count = 0;\r | |
345 | return NULL;\r | |
346 | }\r | |
347 | \r | |
348 | *Count = 1;\r | |
349 | \r | |
350 | mRootBridge.Segment = 0;\r | |
351 | mRootBridge.Supports = EFI_PCI_ATTRIBUTE_ISA_IO_16 |\r | |
352 | EFI_PCI_ATTRIBUTE_ISA_MOTHERBOARD_IO |\r | |
353 | EFI_PCI_ATTRIBUTE_VGA_IO_16 |\r | |
354 | EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO_16;\r | |
355 | mRootBridge.Attributes = mRootBridge.Supports;\r | |
356 | \r | |
4c0b2d25 | 357 | mRootBridge.DmaAbove4G = TRUE;\r |
d4cb9a30 AB |
358 | mRootBridge.NoExtendedConfigSpace = FALSE;\r |
359 | mRootBridge.ResourceAssigned = FALSE;\r | |
360 | \r | |
361 | mRootBridge.AllocationAttributes = EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM;\r | |
362 | \r | |
363 | mRootBridge.Bus.Base = BusMin;\r | |
364 | mRootBridge.Bus.Limit = BusMax;\r | |
365 | mRootBridge.Io.Base = IoBase;\r | |
366 | mRootBridge.Io.Limit = IoBase + IoSize - 1;\r | |
367 | mRootBridge.Mem.Base = Mmio32Base;\r | |
368 | mRootBridge.Mem.Limit = Mmio32Base + Mmio32Size - 1;\r | |
9d64ac23 AB |
369 | \r |
370 | if (sizeof (UINTN) == sizeof (UINT64)) {\r | |
371 | mRootBridge.MemAbove4G.Base = Mmio64Base;\r | |
372 | mRootBridge.MemAbove4G.Limit = Mmio64Base + Mmio64Size - 1;\r | |
373 | if (Mmio64Size > 0) {\r | |
374 | mRootBridge.AllocationAttributes |= EFI_PCI_HOST_BRIDGE_MEM64_DECODE;\r | |
375 | }\r | |
376 | } else {\r | |
377 | //\r | |
378 | // UEFI mandates a 1:1 virtual-to-physical mapping, so on a 32-bit\r | |
379 | // architecture such as ARM, we will not be able to access 64-bit MMIO\r | |
380 | // BARs unless they are allocated below 4 GB. So ignore the range above\r | |
381 | // 4 GB in this case.\r | |
382 | //\r | |
383 | mRootBridge.MemAbove4G.Base = MAX_UINT64;\r | |
384 | mRootBridge.MemAbove4G.Limit = 0;\r | |
385 | }\r | |
d4cb9a30 AB |
386 | \r |
387 | //\r | |
388 | // No separate ranges for prefetchable and non-prefetchable BARs\r | |
389 | //\r | |
390 | mRootBridge.PMem.Base = MAX_UINT64;\r | |
391 | mRootBridge.PMem.Limit = 0;\r | |
392 | mRootBridge.PMemAbove4G.Base = MAX_UINT64;\r | |
393 | mRootBridge.PMemAbove4G.Limit = 0;\r | |
394 | \r | |
395 | mRootBridge.DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)&mEfiPciRootBridgeDevicePath;\r | |
396 | \r | |
397 | return &mRootBridge;\r | |
398 | }\r | |
399 | \r | |
400 | /**\r | |
401 | Free the root bridge instances array returned from\r | |
402 | PciHostBridgeGetRootBridges().\r | |
403 | \r | |
404 | @param Bridges The root bridge instances array.\r | |
405 | @param Count The count of the array.\r | |
406 | **/\r | |
407 | VOID\r | |
408 | EFIAPI\r | |
409 | PciHostBridgeFreeRootBridges (\r | |
410 | PCI_ROOT_BRIDGE *Bridges,\r | |
411 | UINTN Count\r | |
412 | )\r | |
413 | {\r | |
414 | ASSERT (Count == 1);\r | |
415 | }\r | |
416 | \r | |
417 | /**\r | |
418 | Inform the platform that the resource conflict happens.\r | |
419 | \r | |
420 | @param HostBridgeHandle Handle of the Host Bridge.\r | |
421 | @param Configuration Pointer to PCI I/O and PCI memory resource\r | |
422 | descriptors. The Configuration contains the resources\r | |
423 | for all the root bridges. The resource for each root\r | |
424 | bridge is terminated with END descriptor and an\r | |
425 | additional END is appended indicating the end of the\r | |
426 | entire resources. The resource descriptor field\r | |
427 | values follow the description in\r | |
428 | EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL\r | |
429 | .SubmitResources().\r | |
430 | **/\r | |
431 | VOID\r | |
432 | EFIAPI\r | |
433 | PciHostBridgeResourceConflict (\r | |
434 | EFI_HANDLE HostBridgeHandle,\r | |
435 | VOID *Configuration\r | |
436 | )\r | |
437 | {\r | |
438 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;\r | |
439 | UINTN RootBridgeIndex;\r | |
440 | DEBUG ((EFI_D_ERROR, "PciHostBridge: Resource conflict happens!\n"));\r | |
441 | \r | |
442 | RootBridgeIndex = 0;\r | |
443 | Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;\r | |
444 | while (Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) {\r | |
445 | DEBUG ((EFI_D_ERROR, "RootBridge[%d]:\n", RootBridgeIndex++));\r | |
446 | for (; Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR; Descriptor++) {\r | |
447 | ASSERT (Descriptor->ResType <\r | |
448 | (sizeof (mPciHostBridgeLibAcpiAddressSpaceTypeStr) /\r | |
449 | sizeof (mPciHostBridgeLibAcpiAddressSpaceTypeStr[0])\r | |
450 | )\r | |
451 | );\r | |
452 | DEBUG ((EFI_D_ERROR, " %s: Length/Alignment = 0x%lx / 0x%lx\n",\r | |
453 | mPciHostBridgeLibAcpiAddressSpaceTypeStr[Descriptor->ResType],\r | |
454 | Descriptor->AddrLen, Descriptor->AddrRangeMax\r | |
455 | ));\r | |
456 | if (Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) {\r | |
457 | DEBUG ((EFI_D_ERROR, " Granularity/SpecificFlag = %ld / %02x%s\n",\r | |
458 | Descriptor->AddrSpaceGranularity, Descriptor->SpecificFlag,\r | |
459 | ((Descriptor->SpecificFlag &\r | |
460 | EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE\r | |
461 | ) != 0) ? L" (Prefetchable)" : L""\r | |
462 | ));\r | |
463 | }\r | |
464 | }\r | |
465 | //\r | |
466 | // Skip the END descriptor for root bridge\r | |
467 | //\r | |
468 | ASSERT (Descriptor->Desc == ACPI_END_TAG_DESCRIPTOR);\r | |
469 | Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)(\r | |
470 | (EFI_ACPI_END_TAG_DESCRIPTOR *)Descriptor + 1\r | |
471 | );\r | |
472 | }\r | |
473 | }\r |