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9060e3ec | 1 | /** @file\r |
2 | PCI emumeration support functions implementation for PCI Bus module.\r | |
3 | \r | |
0785c619 | 4 | Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR>\r |
25a26646 | 5 | (C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>\r |
9d510e61 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
9060e3ec | 7 | \r |
8 | **/\r | |
9 | \r | |
10 | #include "PciBus.h"\r | |
11 | \r | |
1436aea4 MK |
12 | extern CHAR16 *mBarTypeStr[];\r |
13 | extern EDKII_DEVICE_SECURITY_PROTOCOL *mDeviceSecurityProtocol;\r | |
8db6a82c | 14 | \r |
1436aea4 MK |
15 | #define OLD_ALIGN 0xFFFFFFFFFFFFFFFFULL\r |
16 | #define EVEN_ALIGN 0xFFFFFFFFFFFFFFFEULL\r | |
17 | #define SQUAD_ALIGN 0xFFFFFFFFFFFFFFFDULL\r | |
18 | #define DQUAD_ALIGN 0xFFFFFFFFFFFFFFFCULL\r | |
8a93fa1e | 19 | \r |
9060e3ec | 20 | /**\r |
21 | This routine is used to check whether the pci device is present.\r | |
22 | \r | |
23 | @param PciRootBridgeIo Pointer to instance of EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.\r | |
24 | @param Pci Output buffer for PCI device configuration space.\r | |
25 | @param Bus PCI bus NO.\r | |
26 | @param Device PCI device NO.\r | |
27 | @param Func PCI Func NO.\r | |
28 | \r | |
29 | @retval EFI_NOT_FOUND PCI device not present.\r | |
30 | @retval EFI_SUCCESS PCI device is found.\r | |
31 | \r | |
32 | **/\r | |
33 | EFI_STATUS\r | |
34 | PciDevicePresent (\r | |
1436aea4 MK |
35 | IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,\r |
36 | OUT PCI_TYPE00 *Pci,\r | |
37 | IN UINT8 Bus,\r | |
38 | IN UINT8 Device,\r | |
39 | IN UINT8 Func\r | |
9060e3ec | 40 | )\r |
41 | {\r | |
42 | UINT64 Address;\r | |
43 | EFI_STATUS Status;\r | |
44 | \r | |
45 | //\r | |
46 | // Create PCI address map in terms of Bus, Device and Func\r | |
47 | //\r | |
48 | Address = EFI_PCI_ADDRESS (Bus, Device, Func, 0);\r | |
49 | \r | |
50 | //\r | |
51 | // Read the Vendor ID register\r | |
52 | //\r | |
53 | Status = PciRootBridgeIo->Pci.Read (\r | |
54 | PciRootBridgeIo,\r | |
55 | EfiPciWidthUint32,\r | |
56 | Address,\r | |
57 | 1,\r | |
58 | Pci\r | |
59 | );\r | |
60 | \r | |
1436aea4 | 61 | if (!EFI_ERROR (Status) && ((Pci->Hdr).VendorId != 0xffff)) {\r |
9060e3ec | 62 | //\r |
63 | // Read the entire config header for the device\r | |
64 | //\r | |
65 | Status = PciRootBridgeIo->Pci.Read (\r | |
66 | PciRootBridgeIo,\r | |
67 | EfiPciWidthUint32,\r | |
68 | Address,\r | |
69 | sizeof (PCI_TYPE00) / sizeof (UINT32),\r | |
70 | Pci\r | |
71 | );\r | |
72 | \r | |
73 | return EFI_SUCCESS;\r | |
74 | }\r | |
75 | \r | |
76 | return EFI_NOT_FOUND;\r | |
77 | }\r | |
78 | \r | |
79 | /**\r | |
80 | Collect all the resource information under this root bridge.\r | |
81 | \r | |
82 | A database that records all the information about pci device subject to this\r | |
83 | root bridge will then be created.\r | |
84 | \r | |
85 | @param Bridge Parent bridge instance.\r | |
fcdfcdbf | 86 | @param StartBusNumber Bus number of beginning.\r |
9060e3ec | 87 | \r |
88 | @retval EFI_SUCCESS PCI device is found.\r | |
89 | @retval other Some error occurred when reading PCI bridge information.\r | |
90 | \r | |
91 | **/\r | |
92 | EFI_STATUS\r | |
93 | PciPciDeviceInfoCollector (\r | |
1436aea4 MK |
94 | IN PCI_IO_DEVICE *Bridge,\r |
95 | IN UINT8 StartBusNumber\r | |
9060e3ec | 96 | )\r |
97 | {\r | |
1436aea4 MK |
98 | EFI_STATUS Status;\r |
99 | PCI_TYPE00 Pci;\r | |
100 | UINT8 Device;\r | |
101 | UINT8 Func;\r | |
102 | UINT8 SecBus;\r | |
103 | PCI_IO_DEVICE *PciIoDevice;\r | |
104 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
9060e3ec | 105 | \r |
1436aea4 MK |
106 | Status = EFI_SUCCESS;\r |
107 | SecBus = 0;\r | |
9060e3ec | 108 | \r |
109 | for (Device = 0; Device <= PCI_MAX_DEVICE; Device++) {\r | |
9060e3ec | 110 | for (Func = 0; Func <= PCI_MAX_FUNC; Func++) {\r |
9060e3ec | 111 | //\r |
112 | // Check to see whether PCI device is present\r | |
113 | //\r | |
114 | Status = PciDevicePresent (\r | |
115 | Bridge->PciRootBridgeIo,\r | |
116 | &Pci,\r | |
1436aea4 MK |
117 | (UINT8)StartBusNumber,\r |
118 | (UINT8)Device,\r | |
119 | (UINT8)Func\r | |
9060e3ec | 120 | );\r |
25a26646 | 121 | \r |
1436aea4 | 122 | if (EFI_ERROR (Status) && (Func == 0)) {\r |
25a26646 JS |
123 | //\r |
124 | // go to next device if there is no Function 0\r | |
125 | //\r | |
126 | break;\r | |
127 | }\r | |
128 | \r | |
9060e3ec | 129 | if (!EFI_ERROR (Status)) {\r |
9060e3ec | 130 | //\r |
131 | // Call back to host bridge function\r | |
132 | //\r | |
1436aea4 | 133 | PreprocessController (Bridge, (UINT8)StartBusNumber, Device, Func, EfiPciBeforeResourceCollection);\r |
9060e3ec | 134 | \r |
135 | //\r | |
136 | // Collect all the information about the PCI device discovered\r | |
137 | //\r | |
138 | Status = PciSearchDevice (\r | |
139 | Bridge,\r | |
140 | &Pci,\r | |
1436aea4 | 141 | (UINT8)StartBusNumber,\r |
9060e3ec | 142 | Device,\r |
143 | Func,\r | |
144 | &PciIoDevice\r | |
145 | );\r | |
146 | \r | |
147 | //\r | |
148 | // Recursively scan PCI busses on the other side of PCI-PCI bridges\r | |
149 | //\r | |
150 | //\r | |
151 | if (!EFI_ERROR (Status) && (IS_PCI_BRIDGE (&Pci) || IS_CARDBUS_BRIDGE (&Pci))) {\r | |
9060e3ec | 152 | //\r |
153 | // If it is PPB, we need to get the secondary bus to continue the enumeration\r | |
154 | //\r | |
1436aea4 | 155 | PciIo = &(PciIoDevice->PciIo);\r |
9060e3ec | 156 | \r |
1436aea4 | 157 | Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, PCI_BRIDGE_SECONDARY_BUS_REGISTER_OFFSET, 1, &SecBus);\r |
9060e3ec | 158 | \r |
159 | if (EFI_ERROR (Status)) {\r | |
160 | return Status;\r | |
161 | }\r | |
162 | \r | |
c28306c3 MM |
163 | //\r |
164 | // Ensure secondary bus number is greater than the primary bus number to avoid\r | |
165 | // any potential dead loop when PcdPciDisableBusEnumeration is set to TRUE\r | |
166 | //\r | |
167 | if (SecBus <= StartBusNumber) {\r | |
168 | break;\r | |
169 | }\r | |
170 | \r | |
9060e3ec | 171 | //\r |
172 | // Get resource padding for PPB\r | |
173 | //\r | |
174 | GetResourcePaddingPpb (PciIoDevice);\r | |
175 | \r | |
176 | //\r | |
177 | // Deep enumerate the next level bus\r | |
178 | //\r | |
179 | Status = PciPciDeviceInfoCollector (\r | |
180 | PciIoDevice,\r | |
1436aea4 | 181 | (UINT8)(SecBus)\r |
9060e3ec | 182 | );\r |
9060e3ec | 183 | }\r |
184 | \r | |
1436aea4 | 185 | if ((Func == 0) && !IS_PCI_MULTI_FUNC (&Pci)) {\r |
9060e3ec | 186 | //\r |
187 | // Skip sub functions, this is not a multi function device\r | |
188 | //\r | |
189 | Func = PCI_MAX_FUNC;\r | |
190 | }\r | |
191 | }\r | |
9060e3ec | 192 | }\r |
193 | }\r | |
194 | \r | |
195 | return EFI_SUCCESS;\r | |
196 | }\r | |
197 | \r | |
198 | /**\r | |
fcdfcdbf | 199 | Search required device and create PCI device instance.\r |
9060e3ec | 200 | \r |
201 | @param Bridge Parent bridge instance.\r | |
202 | @param Pci Input PCI device information block.\r | |
203 | @param Bus PCI bus NO.\r | |
204 | @param Device PCI device NO.\r | |
205 | @param Func PCI func NO.\r | |
206 | @param PciDevice Output of searched PCI device instance.\r | |
207 | \r | |
208 | @retval EFI_SUCCESS Successfully created PCI device instance.\r | |
209 | @retval EFI_OUT_OF_RESOURCES Cannot get PCI device information.\r | |
210 | \r | |
211 | **/\r | |
212 | EFI_STATUS\r | |
213 | PciSearchDevice (\r | |
1436aea4 MK |
214 | IN PCI_IO_DEVICE *Bridge,\r |
215 | IN PCI_TYPE00 *Pci,\r | |
216 | IN UINT8 Bus,\r | |
217 | IN UINT8 Device,\r | |
218 | IN UINT8 Func,\r | |
219 | OUT PCI_IO_DEVICE **PciDevice\r | |
9060e3ec | 220 | )\r |
221 | {\r | |
1436aea4 | 222 | PCI_IO_DEVICE *PciIoDevice;\r |
cb8349f0 | 223 | BOOLEAN IgnoreOptionRom;\r |
9060e3ec | 224 | \r |
cb8349f0 MX |
225 | PciIoDevice = NULL;\r |
226 | IgnoreOptionRom = FALSE;\r | |
9060e3ec | 227 | \r |
8db6a82c | 228 | DEBUG ((\r |
87000d77 | 229 | DEBUG_INFO,\r |
8db6a82c RN |
230 | "PciBus: Discovered %s @ [%02x|%02x|%02x]\n",\r |
231 | IS_PCI_BRIDGE (Pci) ? L"PPB" :\r | |
232 | IS_CARDBUS_BRIDGE (Pci) ? L"P2C" :\r | |
1436aea4 MK |
233 | L"PCI",\r |
234 | Bus,\r | |
235 | Device,\r | |
236 | Func\r | |
8db6a82c RN |
237 | ));\r |
238 | \r | |
9060e3ec | 239 | if (!IS_PCI_BRIDGE (Pci)) {\r |
9060e3ec | 240 | if (IS_CARDBUS_BRIDGE (Pci)) {\r |
241 | PciIoDevice = GatherP2CInfo (\r | |
242 | Bridge,\r | |
243 | Pci,\r | |
244 | Bus,\r | |
245 | Device,\r | |
246 | Func\r | |
247 | );\r | |
248 | if ((PciIoDevice != NULL) && gFullEnumeration) {\r | |
249 | InitializeP2C (PciIoDevice);\r | |
250 | }\r | |
251 | } else {\r | |
9060e3ec | 252 | //\r |
253 | // Create private data for Pci Device\r | |
254 | //\r | |
255 | PciIoDevice = GatherDeviceInfo (\r | |
256 | Bridge,\r | |
257 | Pci,\r | |
258 | Bus,\r | |
259 | Device,\r | |
260 | Func\r | |
261 | );\r | |
9060e3ec | 262 | }\r |
9060e3ec | 263 | } else {\r |
9060e3ec | 264 | //\r |
265 | // Create private data for PPB\r | |
266 | //\r | |
267 | PciIoDevice = GatherPpbInfo (\r | |
268 | Bridge,\r | |
269 | Pci,\r | |
270 | Bus,\r | |
271 | Device,\r | |
272 | Func\r | |
273 | );\r | |
274 | \r | |
275 | //\r | |
276 | // Special initialization for PPB including making the PPB quiet\r | |
277 | //\r | |
278 | if ((PciIoDevice != NULL) && gFullEnumeration) {\r | |
279 | InitializePpb (PciIoDevice);\r | |
280 | }\r | |
281 | }\r | |
282 | \r | |
283 | if (PciIoDevice == NULL) {\r | |
284 | return EFI_OUT_OF_RESOURCES;\r | |
285 | }\r | |
286 | \r | |
287 | //\r | |
288 | // Update the bar information for this PCI device so as to support some specific device\r | |
289 | //\r | |
cb8349f0 | 290 | UpdatePciInfo (PciIoDevice, &IgnoreOptionRom);\r |
9060e3ec | 291 | \r |
292 | if (PciIoDevice->DevicePath == NULL) {\r | |
293 | return EFI_OUT_OF_RESOURCES;\r | |
294 | }\r | |
295 | \r | |
296 | //\r | |
297 | // Detect this function has option rom\r | |
298 | //\r | |
299 | if (gFullEnumeration) {\r | |
cb8349f0 | 300 | if (!IS_CARDBUS_BRIDGE (Pci) && !IgnoreOptionRom) {\r |
9060e3ec | 301 | GetOpRomInfo (PciIoDevice);\r |
9060e3ec | 302 | }\r |
303 | \r | |
304 | ResetPowerManagementFeature (PciIoDevice);\r | |
9060e3ec | 305 | }\r |
306 | \r | |
307 | //\r | |
308 | // Insert it into a global tree for future reference\r | |
309 | //\r | |
310 | InsertPciDevice (Bridge, PciIoDevice);\r | |
311 | \r | |
312 | //\r | |
313 | // Determine PCI device attributes\r | |
314 | //\r | |
315 | \r | |
316 | if (PciDevice != NULL) {\r | |
317 | *PciDevice = PciIoDevice;\r | |
318 | }\r | |
319 | \r | |
320 | return EFI_SUCCESS;\r | |
321 | }\r | |
322 | \r | |
f67bd32d RN |
323 | /**\r |
324 | Dump the PPB padding resource information.\r | |
325 | \r | |
326 | @param PciIoDevice PCI IO instance.\r | |
327 | @param ResourceType The desired resource type to dump.\r | |
328 | PciBarTypeUnknown means to dump all types of resources.\r | |
329 | **/\r | |
330 | VOID\r | |
331 | DumpPpbPaddingResource (\r | |
1436aea4 MK |
332 | IN PCI_IO_DEVICE *PciIoDevice,\r |
333 | IN PCI_BAR_TYPE ResourceType\r | |
f67bd32d RN |
334 | )\r |
335 | {\r | |
1436aea4 MK |
336 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;\r |
337 | PCI_BAR_TYPE Type;\r | |
f67bd32d RN |
338 | \r |
339 | if (PciIoDevice->ResourcePaddingDescriptors == NULL) {\r | |
340 | return;\r | |
341 | }\r | |
342 | \r | |
1436aea4 | 343 | if ((ResourceType == PciBarTypeIo16) || (ResourceType == PciBarTypeIo32)) {\r |
f67bd32d RN |
344 | ResourceType = PciBarTypeIo;\r |
345 | }\r | |
346 | \r | |
347 | for (Descriptor = PciIoDevice->ResourcePaddingDescriptors; Descriptor->Desc != ACPI_END_TAG_DESCRIPTOR; Descriptor++) {\r | |
f67bd32d | 348 | Type = PciBarTypeUnknown;\r |
1436aea4 | 349 | if ((Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) && (Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_IO)) {\r |
f67bd32d | 350 | Type = PciBarTypeIo;\r |
1436aea4 | 351 | } else if ((Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) && (Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM)) {\r |
f67bd32d RN |
352 | if (Descriptor->AddrSpaceGranularity == 32) {\r |
353 | //\r | |
fcdfcdbf | 354 | // prefetchable\r |
f67bd32d RN |
355 | //\r |
356 | if (Descriptor->SpecificFlag == EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE) {\r | |
357 | Type = PciBarTypePMem32;\r | |
358 | }\r | |
359 | \r | |
360 | //\r | |
fcdfcdbf | 361 | // Non-prefetchable\r |
f67bd32d RN |
362 | //\r |
363 | if (Descriptor->SpecificFlag == 0) {\r | |
364 | Type = PciBarTypeMem32;\r | |
365 | }\r | |
366 | }\r | |
367 | \r | |
368 | if (Descriptor->AddrSpaceGranularity == 64) {\r | |
369 | //\r | |
fcdfcdbf | 370 | // prefetchable\r |
f67bd32d RN |
371 | //\r |
372 | if (Descriptor->SpecificFlag == EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE) {\r | |
373 | Type = PciBarTypePMem64;\r | |
374 | }\r | |
375 | \r | |
376 | //\r | |
fcdfcdbf | 377 | // Non-prefetchable\r |
f67bd32d RN |
378 | //\r |
379 | if (Descriptor->SpecificFlag == 0) {\r | |
380 | Type = PciBarTypeMem64;\r | |
381 | }\r | |
382 | }\r | |
383 | }\r | |
384 | \r | |
385 | if ((Type != PciBarTypeUnknown) && ((ResourceType == PciBarTypeUnknown) || (ResourceType == Type))) {\r | |
386 | DEBUG ((\r | |
87000d77 | 387 | DEBUG_INFO,\r |
f67bd32d | 388 | " Padding: Type = %s; Alignment = 0x%lx;\tLength = 0x%lx\n",\r |
1436aea4 MK |
389 | mBarTypeStr[Type],\r |
390 | Descriptor->AddrRangeMax,\r | |
391 | Descriptor->AddrLen\r | |
f67bd32d RN |
392 | ));\r |
393 | }\r | |
394 | }\r | |
f67bd32d RN |
395 | }\r |
396 | \r | |
8db6a82c RN |
397 | /**\r |
398 | Dump the PCI BAR information.\r | |
399 | \r | |
400 | @param PciIoDevice PCI IO instance.\r | |
401 | **/\r | |
402 | VOID\r | |
403 | DumpPciBars (\r | |
1436aea4 | 404 | IN PCI_IO_DEVICE *PciIoDevice\r |
8db6a82c RN |
405 | )\r |
406 | {\r | |
1436aea4 | 407 | UINTN Index;\r |
8db6a82c RN |
408 | \r |
409 | for (Index = 0; Index < PCI_MAX_BAR; Index++) {\r | |
410 | if (PciIoDevice->PciBar[Index].BarType == PciBarTypeUnknown) {\r | |
411 | continue;\r | |
412 | }\r | |
413 | \r | |
414 | DEBUG ((\r | |
87000d77 | 415 | DEBUG_INFO,\r |
980050bc | 416 | " BAR[%d]: Type = %s; Alignment = 0x%lx;\tLength = 0x%lx;\tOffset = 0x%02x\n",\r |
1436aea4 MK |
417 | Index,\r |
418 | mBarTypeStr[MIN (PciIoDevice->PciBar[Index].BarType, PciBarTypeMaxType)],\r | |
419 | PciIoDevice->PciBar[Index].Alignment,\r | |
420 | PciIoDevice->PciBar[Index].Length,\r | |
421 | PciIoDevice->PciBar[Index].Offset\r | |
8db6a82c RN |
422 | ));\r |
423 | }\r | |
424 | \r | |
425 | for (Index = 0; Index < PCI_MAX_BAR; Index++) {\r | |
426 | if ((PciIoDevice->VfPciBar[Index].BarType == PciBarTypeUnknown) && (PciIoDevice->VfPciBar[Index].Length == 0)) {\r | |
427 | continue;\r | |
428 | }\r | |
429 | \r | |
430 | DEBUG ((\r | |
87000d77 | 431 | DEBUG_INFO,\r |
980050bc | 432 | " VFBAR[%d]: Type = %s; Alignment = 0x%lx;\tLength = 0x%lx;\tOffset = 0x%02x\n",\r |
1436aea4 MK |
433 | Index,\r |
434 | mBarTypeStr[MIN (PciIoDevice->VfPciBar[Index].BarType, PciBarTypeMaxType)],\r | |
435 | PciIoDevice->VfPciBar[Index].Alignment,\r | |
436 | PciIoDevice->VfPciBar[Index].Length,\r | |
437 | PciIoDevice->VfPciBar[Index].Offset\r | |
8db6a82c RN |
438 | ));\r |
439 | }\r | |
1436aea4 | 440 | \r |
87000d77 | 441 | DEBUG ((DEBUG_INFO, "\n"));\r |
8db6a82c RN |
442 | }\r |
443 | \r | |
9060e3ec | 444 | /**\r |
445 | Create PCI device instance for PCI device.\r | |
446 | \r | |
447 | @param Bridge Parent bridge instance.\r | |
448 | @param Pci Input PCI device information block.\r | |
449 | @param Bus PCI device Bus NO.\r | |
450 | @param Device PCI device Device NO.\r | |
451 | @param Func PCI device's func NO.\r | |
452 | \r | |
453 | @return Created PCI device instance.\r | |
454 | \r | |
455 | **/\r | |
456 | PCI_IO_DEVICE *\r | |
457 | GatherDeviceInfo (\r | |
1436aea4 MK |
458 | IN PCI_IO_DEVICE *Bridge,\r |
459 | IN PCI_TYPE00 *Pci,\r | |
460 | IN UINT8 Bus,\r | |
461 | IN UINT8 Device,\r | |
462 | IN UINT8 Func\r | |
9060e3ec | 463 | )\r |
464 | {\r | |
1436aea4 MK |
465 | UINTN Offset;\r |
466 | UINTN BarIndex;\r | |
467 | PCI_IO_DEVICE *PciIoDevice;\r | |
9060e3ec | 468 | \r |
9060e3ec | 469 | PciIoDevice = CreatePciIoDevice (\r |
d4048391 | 470 | Bridge,\r |
9060e3ec | 471 | Pci,\r |
472 | Bus,\r | |
473 | Device,\r | |
474 | Func\r | |
475 | );\r | |
476 | \r | |
477 | if (PciIoDevice == NULL) {\r | |
478 | return NULL;\r | |
479 | }\r | |
480 | \r | |
9060e3ec | 481 | //\r |
482 | // If it is a full enumeration, disconnect the device in advance\r | |
483 | //\r | |
484 | if (gFullEnumeration) {\r | |
9060e3ec | 485 | PCI_DISABLE_COMMAND_REGISTER (PciIoDevice, EFI_PCI_COMMAND_BITS_OWNED);\r |
9060e3ec | 486 | }\r |
487 | \r | |
488 | //\r | |
489 | // Start to parse the bars\r | |
490 | //\r | |
491 | for (Offset = 0x10, BarIndex = 0; Offset <= 0x24 && BarIndex < PCI_MAX_BAR; BarIndex++) {\r | |
492 | Offset = PciParseBar (PciIoDevice, Offset, BarIndex);\r | |
493 | }\r | |
494 | \r | |
495 | //\r | |
496 | // Parse the SR-IOV VF bars\r | |
497 | //\r | |
1436aea4 | 498 | if (PcdGetBool (PcdSrIovSupport) && (PciIoDevice->SrIovCapabilityOffset != 0)) {\r |
9060e3ec | 499 | for (Offset = PciIoDevice->SrIovCapabilityOffset + EFI_PCIE_CAPABILITY_ID_SRIOV_BAR0, BarIndex = 0;\r |
500 | Offset <= PciIoDevice->SrIovCapabilityOffset + EFI_PCIE_CAPABILITY_ID_SRIOV_BAR5;\r | |
1436aea4 MK |
501 | BarIndex++)\r |
502 | {\r | |
9060e3ec | 503 | ASSERT (BarIndex < PCI_MAX_BAR);\r |
504 | Offset = PciIovParseVfBar (PciIoDevice, Offset, BarIndex);\r | |
505 | }\r | |
506 | }\r | |
8db6a82c | 507 | \r |
1436aea4 MK |
508 | DEBUG_CODE (\r |
509 | DumpPciBars (PciIoDevice);\r | |
510 | );\r | |
9060e3ec | 511 | return PciIoDevice;\r |
512 | }\r | |
513 | \r | |
514 | /**\r | |
515 | Create PCI device instance for PCI-PCI bridge.\r | |
516 | \r | |
517 | @param Bridge Parent bridge instance.\r | |
518 | @param Pci Input PCI device information block.\r | |
519 | @param Bus PCI device Bus NO.\r | |
520 | @param Device PCI device Device NO.\r | |
521 | @param Func PCI device's func NO.\r | |
522 | \r | |
523 | @return Created PCI device instance.\r | |
524 | \r | |
525 | **/\r | |
526 | PCI_IO_DEVICE *\r | |
527 | GatherPpbInfo (\r | |
1436aea4 MK |
528 | IN PCI_IO_DEVICE *Bridge,\r |
529 | IN PCI_TYPE00 *Pci,\r | |
530 | IN UINT8 Bus,\r | |
531 | IN UINT8 Device,\r | |
532 | IN UINT8 Func\r | |
9060e3ec | 533 | )\r |
534 | {\r | |
1436aea4 MK |
535 | PCI_IO_DEVICE *PciIoDevice;\r |
536 | EFI_STATUS Status;\r | |
537 | UINT8 Value;\r | |
538 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
539 | UINT8 Temp;\r | |
540 | UINT32 PMemBaseLimit;\r | |
541 | UINT16 PrefetchableMemoryBase;\r | |
542 | UINT16 PrefetchableMemoryLimit;\r | |
9060e3ec | 543 | \r |
9060e3ec | 544 | PciIoDevice = CreatePciIoDevice (\r |
d4048391 | 545 | Bridge,\r |
9060e3ec | 546 | Pci,\r |
547 | Bus,\r | |
548 | Device,\r | |
549 | Func\r | |
550 | );\r | |
551 | \r | |
552 | if (PciIoDevice == NULL) {\r | |
553 | return NULL;\r | |
554 | }\r | |
555 | \r | |
9060e3ec | 556 | if (gFullEnumeration) {\r |
557 | PCI_DISABLE_COMMAND_REGISTER (PciIoDevice, EFI_PCI_COMMAND_BITS_OWNED);\r | |
558 | \r | |
559 | //\r | |
fcdfcdbf | 560 | // Initialize the bridge control register\r |
9060e3ec | 561 | //\r |
562 | PCI_DISABLE_BRIDGE_CONTROL_REGISTER (PciIoDevice, EFI_PCI_BRIDGE_CONTROL_BITS_OWNED);\r | |
9060e3ec | 563 | }\r |
564 | \r | |
565 | //\r | |
566 | // PPB can have two BARs\r | |
567 | //\r | |
568 | if (PciParseBar (PciIoDevice, 0x10, PPB_BAR_0) == 0x14) {\r | |
569 | //\r | |
570 | // Not 64-bit bar\r | |
571 | //\r | |
572 | PciParseBar (PciIoDevice, 0x14, PPB_BAR_1);\r | |
573 | }\r | |
574 | \r | |
575 | PciIo = &PciIoDevice->PciIo;\r | |
576 | \r | |
577 | //\r | |
578 | // Test whether it support 32 decode or not\r | |
579 | //\r | |
580 | PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &Temp);\r | |
581 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &gAllOne);\r | |
582 | PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &Value);\r | |
583 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &Temp);\r | |
584 | \r | |
585 | if (Value != 0) {\r | |
586 | if ((Value & 0x01) != 0) {\r | |
587 | PciIoDevice->Decodes |= EFI_BRIDGE_IO32_DECODE_SUPPORTED;\r | |
588 | } else {\r | |
589 | PciIoDevice->Decodes |= EFI_BRIDGE_IO16_DECODE_SUPPORTED;\r | |
590 | }\r | |
591 | }\r | |
592 | \r | |
1ef26783 | 593 | //\r |
594 | // if PcdPciBridgeIoAlignmentProbe is TRUE, PCI bus driver probes\r | |
ed356b9e | 595 | // PCI bridge supporting non-standard I/O window alignment less than 4K.\r |
1ef26783 | 596 | //\r |
597 | \r | |
598 | PciIoDevice->BridgeIoAlignment = 0xFFF;\r | |
599 | if (FeaturePcdGet (PcdPciBridgeIoAlignmentProbe)) {\r | |
600 | //\r | |
601 | // Check any bits of bit 3-1 of I/O Base Register are writable.\r | |
ed356b9e | 602 | // if so, it is assumed non-standard I/O window alignment is supported by this bridge.\r |
1ef26783 | 603 | // Per spec, bit 3-1 of I/O Base Register are reserved bits, so its content can't be assumed.\r |
604 | //\r | |
f00b5d83 | 605 | Value = (UINT8)(Temp ^ (BIT3 | BIT2 | BIT1));\r |
1ef26783 | 606 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &Value);\r |
607 | PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &Value);\r | |
608 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &Temp);\r | |
f00b5d83 | 609 | Value = (UINT8)((Value ^ Temp) & (BIT3 | BIT2 | BIT1));\r |
1ef26783 | 610 | switch (Value) {\r |
611 | case BIT3:\r | |
612 | PciIoDevice->BridgeIoAlignment = 0x7FF;\r | |
613 | break;\r | |
614 | case BIT3 | BIT2:\r | |
615 | PciIoDevice->BridgeIoAlignment = 0x3FF;\r | |
616 | break;\r | |
617 | case BIT3 | BIT2 | BIT1:\r | |
618 | PciIoDevice->BridgeIoAlignment = 0x1FF;\r | |
619 | break;\r | |
620 | }\r | |
621 | }\r | |
622 | \r | |
9060e3ec | 623 | Status = BarExisted (\r |
1436aea4 MK |
624 | PciIoDevice,\r |
625 | 0x24,\r | |
626 | NULL,\r | |
627 | &PMemBaseLimit\r | |
628 | );\r | |
9060e3ec | 629 | \r |
630 | //\r | |
631 | // Test if it supports 64 memory or not\r | |
632 | //\r | |
07bcff9d | 633 | // The bottom 4 bits of both the Prefetchable Memory Base and Prefetchable Memory Limit\r |
634 | // registers:\r | |
635 | // 0 - the bridge supports only 32 bit addresses.\r | |
636 | // 1 - the bridge supports 64-bit addresses.\r | |
637 | //\r | |
1436aea4 | 638 | PrefetchableMemoryBase = (UINT16)(PMemBaseLimit & 0xffff);\r |
571e9831 | 639 | PrefetchableMemoryLimit = (UINT16)(PMemBaseLimit >> 16);\r |
07bcff9d | 640 | if (!EFI_ERROR (Status) &&\r |
1436aea4 MK |
641 | ((PrefetchableMemoryBase & 0x000f) == 0x0001) &&\r |
642 | ((PrefetchableMemoryLimit & 0x000f) == 0x0001))\r | |
643 | {\r | |
9060e3ec | 644 | Status = BarExisted (\r |
1436aea4 MK |
645 | PciIoDevice,\r |
646 | 0x28,\r | |
647 | NULL,\r | |
648 | NULL\r | |
649 | );\r | |
9060e3ec | 650 | \r |
651 | if (!EFI_ERROR (Status)) {\r | |
652 | PciIoDevice->Decodes |= EFI_BRIDGE_PMEM32_DECODE_SUPPORTED;\r | |
653 | PciIoDevice->Decodes |= EFI_BRIDGE_PMEM64_DECODE_SUPPORTED;\r | |
654 | } else {\r | |
655 | PciIoDevice->Decodes |= EFI_BRIDGE_PMEM32_DECODE_SUPPORTED;\r | |
656 | }\r | |
657 | }\r | |
658 | \r | |
659 | //\r | |
660 | // Memory 32 code is required for ppb\r | |
661 | //\r | |
662 | PciIoDevice->Decodes |= EFI_BRIDGE_MEM32_DECODE_SUPPORTED;\r | |
663 | \r | |
664 | GetResourcePaddingPpb (PciIoDevice);\r | |
665 | \r | |
f67bd32d RN |
666 | DEBUG_CODE (\r |
667 | DumpPpbPaddingResource (PciIoDevice, PciBarTypeUnknown);\r | |
668 | DumpPciBars (PciIoDevice);\r | |
1436aea4 | 669 | );\r |
8db6a82c | 670 | \r |
9060e3ec | 671 | return PciIoDevice;\r |
672 | }\r | |
673 | \r | |
9060e3ec | 674 | /**\r |
675 | Create PCI device instance for PCI Card bridge device.\r | |
676 | \r | |
677 | @param Bridge Parent bridge instance.\r | |
678 | @param Pci Input PCI device information block.\r | |
679 | @param Bus PCI device Bus NO.\r | |
680 | @param Device PCI device Device NO.\r | |
681 | @param Func PCI device's func NO.\r | |
682 | \r | |
683 | @return Created PCI device instance.\r | |
684 | \r | |
685 | **/\r | |
686 | PCI_IO_DEVICE *\r | |
687 | GatherP2CInfo (\r | |
1436aea4 MK |
688 | IN PCI_IO_DEVICE *Bridge,\r |
689 | IN PCI_TYPE00 *Pci,\r | |
690 | IN UINT8 Bus,\r | |
691 | IN UINT8 Device,\r | |
692 | IN UINT8 Func\r | |
9060e3ec | 693 | )\r |
694 | {\r | |
1436aea4 | 695 | PCI_IO_DEVICE *PciIoDevice;\r |
9060e3ec | 696 | \r |
9060e3ec | 697 | PciIoDevice = CreatePciIoDevice (\r |
d4048391 | 698 | Bridge,\r |
9060e3ec | 699 | Pci,\r |
700 | Bus,\r | |
701 | Device,\r | |
702 | Func\r | |
703 | );\r | |
704 | \r | |
705 | if (PciIoDevice == NULL) {\r | |
706 | return NULL;\r | |
707 | }\r | |
708 | \r | |
9060e3ec | 709 | if (gFullEnumeration) {\r |
710 | PCI_DISABLE_COMMAND_REGISTER (PciIoDevice, EFI_PCI_COMMAND_BITS_OWNED);\r | |
711 | \r | |
712 | //\r | |
fcdfcdbf | 713 | // Initialize the bridge control register\r |
9060e3ec | 714 | //\r |
715 | PCI_DISABLE_BRIDGE_CONTROL_REGISTER (PciIoDevice, EFI_PCCARD_BRIDGE_CONTROL_BITS_OWNED);\r | |
716 | }\r | |
717 | \r | |
718 | //\r | |
719 | // P2C only has one bar that is in 0x10\r | |
720 | //\r | |
721 | PciParseBar (PciIoDevice, 0x10, P2C_BAR_0);\r | |
722 | \r | |
723 | //\r | |
724 | // Read PciBar information from the bar register\r | |
725 | //\r | |
726 | GetBackPcCardBar (PciIoDevice);\r | |
727 | PciIoDevice->Decodes = EFI_BRIDGE_MEM32_DECODE_SUPPORTED |\r | |
728 | EFI_BRIDGE_PMEM32_DECODE_SUPPORTED |\r | |
729 | EFI_BRIDGE_IO32_DECODE_SUPPORTED;\r | |
730 | \r | |
1436aea4 MK |
731 | DEBUG_CODE (\r |
732 | DumpPciBars (PciIoDevice);\r | |
733 | );\r | |
8db6a82c | 734 | \r |
9060e3ec | 735 | return PciIoDevice;\r |
736 | }\r | |
737 | \r | |
738 | /**\r | |
fcdfcdbf | 739 | Create device path for pci device.\r |
9060e3ec | 740 | \r |
741 | @param ParentDevicePath Parent bridge's path.\r | |
742 | @param PciIoDevice Pci device instance.\r | |
743 | \r | |
744 | @return Device path protocol instance for specific pci device.\r | |
745 | \r | |
746 | **/\r | |
747 | EFI_DEVICE_PATH_PROTOCOL *\r | |
748 | CreatePciDevicePath (\r | |
1436aea4 MK |
749 | IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,\r |
750 | IN PCI_IO_DEVICE *PciIoDevice\r | |
9060e3ec | 751 | )\r |
752 | {\r | |
1436aea4 | 753 | PCI_DEVICE_PATH PciNode;\r |
9060e3ec | 754 | \r |
755 | //\r | |
756 | // Create PCI device path\r | |
757 | //\r | |
1436aea4 MK |
758 | PciNode.Header.Type = HARDWARE_DEVICE_PATH;\r |
759 | PciNode.Header.SubType = HW_PCI_DP;\r | |
9060e3ec | 760 | SetDevicePathNodeLength (&PciNode.Header, sizeof (PciNode));\r |
761 | \r | |
762 | PciNode.Device = PciIoDevice->DeviceNumber;\r | |
763 | PciNode.Function = PciIoDevice->FunctionNumber;\r | |
764 | PciIoDevice->DevicePath = AppendDevicePathNode (ParentDevicePath, &PciNode.Header);\r | |
765 | \r | |
766 | return PciIoDevice->DevicePath;\r | |
767 | }\r | |
768 | \r | |
769 | /**\r | |
770 | Check whether the PCI IOV VF bar is existed or not.\r | |
771 | \r | |
772 | @param PciIoDevice A pointer to the PCI_IO_DEVICE.\r | |
773 | @param Offset The offset.\r | |
774 | @param BarLengthValue The bar length value returned.\r | |
775 | @param OriginalBarValue The original bar value returned.\r | |
776 | \r | |
777 | @retval EFI_NOT_FOUND The bar doesn't exist.\r | |
778 | @retval EFI_SUCCESS The bar exist.\r | |
779 | \r | |
780 | **/\r | |
781 | EFI_STATUS\r | |
782 | VfBarExisted (\r | |
1436aea4 MK |
783 | IN PCI_IO_DEVICE *PciIoDevice,\r |
784 | IN UINTN Offset,\r | |
785 | OUT UINT32 *BarLengthValue,\r | |
786 | OUT UINT32 *OriginalBarValue\r | |
9060e3ec | 787 | )\r |
788 | {\r | |
1436aea4 MK |
789 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
790 | UINT32 OriginalValue;\r | |
791 | UINT32 Value;\r | |
792 | EFI_TPL OldTpl;\r | |
9060e3ec | 793 | \r |
794 | //\r | |
795 | // Ensure it is called properly\r | |
796 | //\r | |
797 | ASSERT (PciIoDevice->SrIovCapabilityOffset != 0);\r | |
798 | if (PciIoDevice->SrIovCapabilityOffset == 0) {\r | |
799 | return EFI_NOT_FOUND;\r | |
800 | }\r | |
801 | \r | |
802 | PciIo = &PciIoDevice->PciIo;\r | |
803 | \r | |
804 | //\r | |
805 | // Preserve the original value\r | |
806 | //\r | |
807 | \r | |
808 | PciIo->Pci.Read (PciIo, EfiPciIoWidthUint32, (UINT32)Offset, 1, &OriginalValue);\r | |
809 | \r | |
810 | //\r | |
811 | // Raise TPL to high level to disable timer interrupt while the BAR is probed\r | |
812 | //\r | |
813 | OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r | |
814 | \r | |
815 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, (UINT32)Offset, 1, &gAllOne);\r | |
816 | PciIo->Pci.Read (PciIo, EfiPciIoWidthUint32, (UINT32)Offset, 1, &Value);\r | |
817 | \r | |
818 | //\r | |
819 | // Write back the original value\r | |
820 | //\r | |
821 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, (UINT32)Offset, 1, &OriginalValue);\r | |
822 | \r | |
823 | //\r | |
824 | // Restore TPL to its original level\r | |
825 | //\r | |
826 | gBS->RestoreTPL (OldTpl);\r | |
827 | \r | |
828 | if (BarLengthValue != NULL) {\r | |
829 | *BarLengthValue = Value;\r | |
830 | }\r | |
831 | \r | |
832 | if (OriginalBarValue != NULL) {\r | |
833 | *OriginalBarValue = OriginalValue;\r | |
834 | }\r | |
835 | \r | |
836 | if (Value == 0) {\r | |
837 | return EFI_NOT_FOUND;\r | |
838 | } else {\r | |
839 | return EFI_SUCCESS;\r | |
840 | }\r | |
841 | }\r | |
842 | \r | |
843 | /**\r | |
844 | Check whether the bar is existed or not.\r | |
845 | \r | |
846 | @param PciIoDevice A pointer to the PCI_IO_DEVICE.\r | |
847 | @param Offset The offset.\r | |
848 | @param BarLengthValue The bar length value returned.\r | |
849 | @param OriginalBarValue The original bar value returned.\r | |
850 | \r | |
851 | @retval EFI_NOT_FOUND The bar doesn't exist.\r | |
852 | @retval EFI_SUCCESS The bar exist.\r | |
853 | \r | |
854 | **/\r | |
855 | EFI_STATUS\r | |
856 | BarExisted (\r | |
1436aea4 MK |
857 | IN PCI_IO_DEVICE *PciIoDevice,\r |
858 | IN UINTN Offset,\r | |
859 | OUT UINT32 *BarLengthValue,\r | |
860 | OUT UINT32 *OriginalBarValue\r | |
9060e3ec | 861 | )\r |
862 | {\r | |
1436aea4 MK |
863 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
864 | UINT32 OriginalValue;\r | |
865 | UINT32 Value;\r | |
866 | EFI_TPL OldTpl;\r | |
9060e3ec | 867 | \r |
868 | PciIo = &PciIoDevice->PciIo;\r | |
869 | \r | |
870 | //\r | |
871 | // Preserve the original value\r | |
872 | //\r | |
1436aea4 | 873 | PciIo->Pci.Read (PciIo, EfiPciIoWidthUint32, (UINT8)Offset, 1, &OriginalValue);\r |
9060e3ec | 874 | \r |
875 | //\r | |
876 | // Raise TPL to high level to disable timer interrupt while the BAR is probed\r | |
877 | //\r | |
878 | OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r | |
879 | \r | |
1436aea4 MK |
880 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, (UINT8)Offset, 1, &gAllOne);\r |
881 | PciIo->Pci.Read (PciIo, EfiPciIoWidthUint32, (UINT8)Offset, 1, &Value);\r | |
9060e3ec | 882 | \r |
883 | //\r | |
884 | // Write back the original value\r | |
885 | //\r | |
1436aea4 | 886 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, (UINT8)Offset, 1, &OriginalValue);\r |
9060e3ec | 887 | \r |
888 | //\r | |
889 | // Restore TPL to its original level\r | |
890 | //\r | |
891 | gBS->RestoreTPL (OldTpl);\r | |
892 | \r | |
893 | if (BarLengthValue != NULL) {\r | |
894 | *BarLengthValue = Value;\r | |
895 | }\r | |
896 | \r | |
897 | if (OriginalBarValue != NULL) {\r | |
898 | *OriginalBarValue = OriginalValue;\r | |
899 | }\r | |
900 | \r | |
901 | if (Value == 0) {\r | |
902 | return EFI_NOT_FOUND;\r | |
903 | } else {\r | |
904 | return EFI_SUCCESS;\r | |
905 | }\r | |
906 | }\r | |
907 | \r | |
908 | /**\r | |
909 | Test whether the device can support given attributes.\r | |
910 | \r | |
911 | @param PciIoDevice Pci device instance.\r | |
912 | @param Command Input command register value, and\r | |
913 | returned supported register value.\r | |
fcdfcdbf | 914 | @param BridgeControl Input bridge control value for PPB or P2C, and\r |
9060e3ec | 915 | returned supported bridge control value.\r |
916 | @param OldCommand Returned and stored old command register offset.\r | |
917 | @param OldBridgeControl Returned and stored old Bridge control value for PPB or P2C.\r | |
918 | \r | |
919 | **/\r | |
920 | VOID\r | |
921 | PciTestSupportedAttribute (\r | |
1436aea4 MK |
922 | IN PCI_IO_DEVICE *PciIoDevice,\r |
923 | IN OUT UINT16 *Command,\r | |
924 | IN OUT UINT16 *BridgeControl,\r | |
925 | OUT UINT16 *OldCommand,\r | |
926 | OUT UINT16 *OldBridgeControl\r | |
9060e3ec | 927 | )\r |
928 | {\r | |
1436aea4 MK |
929 | EFI_TPL OldTpl;\r |
930 | UINT16 CommandValue;\r | |
9060e3ec | 931 | \r |
932 | //\r | |
933 | // Preserve the original value\r | |
934 | //\r | |
935 | PCI_READ_COMMAND_REGISTER (PciIoDevice, OldCommand);\r | |
936 | \r | |
937 | //\r | |
938 | // Raise TPL to high level to disable timer interrupt while the BAR is probed\r | |
939 | //\r | |
1436aea4 | 940 | OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r |
46b4606b | 941 | CommandValue = *Command | *OldCommand;\r |
9060e3ec | 942 | \r |
46b4606b | 943 | PCI_SET_COMMAND_REGISTER (PciIoDevice, CommandValue);\r |
944 | PCI_READ_COMMAND_REGISTER (PciIoDevice, &CommandValue);\r | |
9060e3ec | 945 | \r |
46b4606b | 946 | *Command = *Command & CommandValue;\r |
9060e3ec | 947 | //\r |
948 | // Write back the original value\r | |
949 | //\r | |
950 | PCI_SET_COMMAND_REGISTER (PciIoDevice, *OldCommand);\r | |
951 | \r | |
952 | //\r | |
953 | // Restore TPL to its original level\r | |
954 | //\r | |
955 | gBS->RestoreTPL (OldTpl);\r | |
956 | \r | |
957 | if (IS_PCI_BRIDGE (&PciIoDevice->Pci) || IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {\r | |
9060e3ec | 958 | //\r |
959 | // Preserve the original value\r | |
960 | //\r | |
961 | PCI_READ_BRIDGE_CONTROL_REGISTER (PciIoDevice, OldBridgeControl);\r | |
962 | \r | |
963 | //\r | |
964 | // Raise TPL to high level to disable timer interrupt while the BAR is probed\r | |
965 | //\r | |
966 | OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r | |
967 | \r | |
968 | PCI_SET_BRIDGE_CONTROL_REGISTER (PciIoDevice, *BridgeControl);\r | |
969 | PCI_READ_BRIDGE_CONTROL_REGISTER (PciIoDevice, BridgeControl);\r | |
970 | \r | |
971 | //\r | |
972 | // Write back the original value\r | |
973 | //\r | |
974 | PCI_SET_BRIDGE_CONTROL_REGISTER (PciIoDevice, *OldBridgeControl);\r | |
975 | \r | |
976 | //\r | |
977 | // Restore TPL to its original level\r | |
978 | //\r | |
979 | gBS->RestoreTPL (OldTpl);\r | |
9060e3ec | 980 | } else {\r |
981 | *OldBridgeControl = 0;\r | |
982 | *BridgeControl = 0;\r | |
983 | }\r | |
984 | }\r | |
985 | \r | |
986 | /**\r | |
987 | Set the supported or current attributes of a PCI device.\r | |
988 | \r | |
989 | @param PciIoDevice Structure pointer for PCI device.\r | |
990 | @param Command Command register value.\r | |
991 | @param BridgeControl Bridge control value for PPB or P2C.\r | |
992 | @param Option Make a choice of EFI_SET_SUPPORTS or EFI_SET_ATTRIBUTES.\r | |
993 | \r | |
994 | **/\r | |
995 | VOID\r | |
996 | PciSetDeviceAttribute (\r | |
1436aea4 MK |
997 | IN PCI_IO_DEVICE *PciIoDevice,\r |
998 | IN UINT16 Command,\r | |
999 | IN UINT16 BridgeControl,\r | |
1000 | IN UINTN Option\r | |
9060e3ec | 1001 | )\r |
1002 | {\r | |
1003 | UINT64 Attributes;\r | |
1004 | \r | |
1005 | Attributes = 0;\r | |
1006 | \r | |
1007 | if ((Command & EFI_PCI_COMMAND_IO_SPACE) != 0) {\r | |
1008 | Attributes |= EFI_PCI_IO_ATTRIBUTE_IO;\r | |
1009 | }\r | |
1010 | \r | |
1011 | if ((Command & EFI_PCI_COMMAND_MEMORY_SPACE) != 0) {\r | |
1012 | Attributes |= EFI_PCI_IO_ATTRIBUTE_MEMORY;\r | |
1013 | }\r | |
1014 | \r | |
1015 | if ((Command & EFI_PCI_COMMAND_BUS_MASTER) != 0) {\r | |
1016 | Attributes |= EFI_PCI_IO_ATTRIBUTE_BUS_MASTER;\r | |
1017 | }\r | |
1018 | \r | |
1019 | if ((Command & EFI_PCI_COMMAND_VGA_PALETTE_SNOOP) != 0) {\r | |
1020 | Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO;\r | |
1021 | }\r | |
1022 | \r | |
1023 | if ((BridgeControl & EFI_PCI_BRIDGE_CONTROL_ISA) != 0) {\r | |
1024 | Attributes |= EFI_PCI_IO_ATTRIBUTE_ISA_IO;\r | |
1025 | }\r | |
1026 | \r | |
1027 | if ((BridgeControl & EFI_PCI_BRIDGE_CONTROL_VGA) != 0) {\r | |
1028 | Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_IO;\r | |
1029 | Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY;\r | |
1030 | Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO;\r | |
1031 | }\r | |
1032 | \r | |
1033 | if ((BridgeControl & EFI_PCI_BRIDGE_CONTROL_VGA_16) != 0) {\r | |
1034 | Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_IO_16;\r | |
1035 | Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16;\r | |
1036 | }\r | |
1037 | \r | |
1038 | if (Option == EFI_SET_SUPPORTS) {\r | |
1436aea4 MK |
1039 | Attributes |= (UINT64)(EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE |\r |
1040 | EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED |\r | |
1041 | EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE |\r | |
1042 | EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE |\r | |
1043 | EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM |\r | |
1044 | EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE);\r | |
9060e3ec | 1045 | \r |
e0ee9d93 | 1046 | if (IS_PCI_LPC (&PciIoDevice->Pci)) {\r |
1436aea4 MK |
1047 | Attributes |= EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO;\r |
1048 | Attributes |= (mReserveIsaAliases ? (UINT64)EFI_PCI_IO_ATTRIBUTE_ISA_IO : \\r | |
1049 | (UINT64)EFI_PCI_IO_ATTRIBUTE_ISA_IO_16);\r | |
9060e3ec | 1050 | }\r |
1051 | \r | |
1052 | if (IS_PCI_BRIDGE (&PciIoDevice->Pci) || IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {\r | |
1053 | //\r | |
1054 | // For bridge, it should support IDE attributes\r | |
1055 | //\r | |
1056 | Attributes |= EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO;\r | |
1057 | Attributes |= EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO;\r | |
e0ee9d93 | 1058 | \r |
1059 | if (mReserveVgaAliases) {\r | |
1060 | Attributes &= ~(UINT64)(EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 | \\r | |
1061 | EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16);\r | |
1062 | } else {\r | |
1063 | Attributes &= ~(UINT64)(EFI_PCI_IO_ATTRIBUTE_VGA_IO | \\r | |
1064 | EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO);\r | |
1065 | }\r | |
9060e3ec | 1066 | } else {\r |
9060e3ec | 1067 | if (IS_PCI_IDE (&PciIoDevice->Pci)) {\r |
1068 | Attributes |= EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO;\r | |
1069 | Attributes |= EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO;\r | |
1070 | }\r | |
1071 | \r | |
1072 | if (IS_PCI_VGA (&PciIoDevice->Pci)) {\r | |
1073 | Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY;\r | |
1436aea4 MK |
1074 | Attributes |= (mReserveVgaAliases ? (UINT64)EFI_PCI_IO_ATTRIBUTE_VGA_IO : \\r |
1075 | (UINT64)EFI_PCI_IO_ATTRIBUTE_VGA_IO_16);\r | |
9060e3ec | 1076 | }\r |
1077 | }\r | |
1078 | \r | |
1436aea4 MK |
1079 | PciIoDevice->Supports = Attributes;\r |
1080 | PciIoDevice->Supports &= ((PciIoDevice->Parent->Supports) | \\r | |
1081 | EFI_PCI_IO_ATTRIBUTE_IO | EFI_PCI_IO_ATTRIBUTE_MEMORY | \\r | |
1082 | EFI_PCI_IO_ATTRIBUTE_BUS_MASTER);\r | |
9060e3ec | 1083 | } else {\r |
4ed4e19c | 1084 | //\r |
1085 | // When this attribute is clear, the RomImage and RomSize fields in the PCI IO were\r | |
1086 | // initialized based on the PCI option ROM found through the ROM BAR of the PCI controller.\r | |
1087 | // When this attribute is set, the PCI option ROM described by the RomImage and RomSize\r | |
1088 | // fields is not from the the ROM BAR of the PCI controller.\r | |
1089 | //\r | |
1090 | if (!PciIoDevice->EmbeddedRom) {\r | |
1091 | Attributes |= EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM;\r | |
1092 | }\r | |
1436aea4 | 1093 | \r |
9060e3ec | 1094 | PciIoDevice->Attributes = Attributes;\r |
1095 | }\r | |
1096 | }\r | |
1097 | \r | |
1098 | /**\r | |
1099 | Determine if the device can support Fast Back to Back attribute.\r | |
1100 | \r | |
1101 | @param PciIoDevice Pci device instance.\r | |
1102 | @param StatusIndex Status register value.\r | |
1103 | \r | |
1104 | @retval EFI_SUCCESS This device support Fast Back to Back attribute.\r | |
1105 | @retval EFI_UNSUPPORTED This device doesn't support Fast Back to Back attribute.\r | |
1106 | \r | |
1107 | **/\r | |
1108 | EFI_STATUS\r | |
1109 | GetFastBackToBackSupport (\r | |
1436aea4 MK |
1110 | IN PCI_IO_DEVICE *PciIoDevice,\r |
1111 | IN UINT8 StatusIndex\r | |
9060e3ec | 1112 | )\r |
1113 | {\r | |
1436aea4 MK |
1114 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
1115 | EFI_STATUS Status;\r | |
1116 | UINT32 StatusRegister;\r | |
9060e3ec | 1117 | \r |
1118 | //\r | |
1119 | // Read the status register\r | |
1120 | //\r | |
1436aea4 MK |
1121 | PciIo = &PciIoDevice->PciIo;\r |
1122 | Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint16, StatusIndex, 1, &StatusRegister);\r | |
9060e3ec | 1123 | if (EFI_ERROR (Status)) {\r |
1124 | return EFI_UNSUPPORTED;\r | |
1125 | }\r | |
1126 | \r | |
1127 | //\r | |
1128 | // Check the Fast B2B bit\r | |
1129 | //\r | |
1130 | if ((StatusRegister & EFI_PCI_FAST_BACK_TO_BACK_CAPABLE) != 0) {\r | |
1131 | return EFI_SUCCESS;\r | |
1132 | } else {\r | |
1133 | return EFI_UNSUPPORTED;\r | |
1134 | }\r | |
1135 | }\r | |
1136 | \r | |
1137 | /**\r | |
1138 | Process the option ROM for all the children of the specified parent PCI device.\r | |
1139 | It can only be used after the first full Option ROM process.\r | |
1140 | \r | |
1141 | @param PciIoDevice Pci device instance.\r | |
1142 | \r | |
1143 | **/\r | |
1144 | VOID\r | |
1145 | ProcessOptionRomLight (\r | |
1436aea4 | 1146 | IN PCI_IO_DEVICE *PciIoDevice\r |
9060e3ec | 1147 | )\r |
1148 | {\r | |
1436aea4 MK |
1149 | PCI_IO_DEVICE *Temp;\r |
1150 | LIST_ENTRY *CurrentLink;\r | |
9060e3ec | 1151 | \r |
1152 | //\r | |
1153 | // For RootBridge, PPB , P2C, go recursively to traverse all its children\r | |
1154 | //\r | |
1155 | CurrentLink = PciIoDevice->ChildList.ForwardLink;\r | |
1156 | while (CurrentLink != NULL && CurrentLink != &PciIoDevice->ChildList) {\r | |
9060e3ec | 1157 | Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);\r |
1158 | \r | |
1159 | if (!IsListEmpty (&Temp->ChildList)) {\r | |
1160 | ProcessOptionRomLight (Temp);\r | |
1161 | }\r | |
1162 | \r | |
3f90ac3e | 1163 | Temp->AllOpRomProcessed = PciRomGetImageMapping (Temp);\r |
9060e3ec | 1164 | \r |
1165 | CurrentLink = CurrentLink->ForwardLink;\r | |
1166 | }\r | |
1167 | }\r | |
1168 | \r | |
1169 | /**\r | |
1170 | Determine the related attributes of all devices under a Root Bridge.\r | |
1171 | \r | |
1172 | @param PciIoDevice PCI device instance.\r | |
1173 | \r | |
1174 | **/\r | |
1175 | EFI_STATUS\r | |
1176 | DetermineDeviceAttribute (\r | |
1436aea4 | 1177 | IN PCI_IO_DEVICE *PciIoDevice\r |
9060e3ec | 1178 | )\r |
1179 | {\r | |
1436aea4 MK |
1180 | UINT16 Command;\r |
1181 | UINT16 BridgeControl;\r | |
1182 | UINT16 OldCommand;\r | |
1183 | UINT16 OldBridgeControl;\r | |
1184 | BOOLEAN FastB2BSupport;\r | |
1185 | PCI_IO_DEVICE *Temp;\r | |
1186 | LIST_ENTRY *CurrentLink;\r | |
1187 | EFI_STATUS Status;\r | |
9060e3ec | 1188 | \r |
1189 | //\r | |
fcdfcdbf | 1190 | // For Root Bridge, just copy it by RootBridgeIo protocol\r |
9060e3ec | 1191 | // so as to keep consistent with the actual attribute\r |
1192 | //\r | |
1193 | if (PciIoDevice->Parent == NULL) {\r | |
1194 | Status = PciIoDevice->PciRootBridgeIo->GetAttributes (\r | |
1436aea4 MK |
1195 | PciIoDevice->PciRootBridgeIo,\r |
1196 | &PciIoDevice->Supports,\r | |
1197 | &PciIoDevice->Attributes\r | |
1198 | );\r | |
9060e3ec | 1199 | if (EFI_ERROR (Status)) {\r |
1200 | return Status;\r | |
1201 | }\r | |
1436aea4 | 1202 | \r |
5a3a6aa7 | 1203 | //\r |
a8035b90 | 1204 | // Assume the PCI Root Bridge supports DAC\r |
5a3a6aa7 | 1205 | //\r |
6e1e5405 | 1206 | PciIoDevice->Supports |= (UINT64)(EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE |\r |
1436aea4 MK |
1207 | EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM |\r |
1208 | EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE);\r | |
9060e3ec | 1209 | } else {\r |
9060e3ec | 1210 | //\r |
1211 | // Set the attributes to be checked for common PCI devices and PPB or P2C\r | |
1212 | // Since some devices only support part of them, it is better to set the\r | |
1213 | // attribute according to its command or bridge control register\r | |
1214 | //\r | |
1215 | Command = EFI_PCI_COMMAND_IO_SPACE |\r | |
1216 | EFI_PCI_COMMAND_MEMORY_SPACE |\r | |
a8035b90 | 1217 | EFI_PCI_COMMAND_BUS_MASTER |\r |
9060e3ec | 1218 | EFI_PCI_COMMAND_VGA_PALETTE_SNOOP;\r |
1219 | \r | |
1220 | BridgeControl = EFI_PCI_BRIDGE_CONTROL_ISA | EFI_PCI_BRIDGE_CONTROL_VGA | EFI_PCI_BRIDGE_CONTROL_VGA_16;\r | |
1221 | \r | |
1222 | //\r | |
1223 | // Test whether the device can support attributes above\r | |
1224 | //\r | |
1225 | PciTestSupportedAttribute (PciIoDevice, &Command, &BridgeControl, &OldCommand, &OldBridgeControl);\r | |
1226 | \r | |
1227 | //\r | |
1228 | // Set the supported attributes for specified PCI device\r | |
1229 | //\r | |
1230 | PciSetDeviceAttribute (PciIoDevice, Command, BridgeControl, EFI_SET_SUPPORTS);\r | |
1231 | \r | |
1232 | //\r | |
1233 | // Set the current attributes for specified PCI device\r | |
1234 | //\r | |
1235 | PciSetDeviceAttribute (PciIoDevice, OldCommand, OldBridgeControl, EFI_SET_ATTRIBUTES);\r | |
1236 | \r | |
1237 | //\r | |
d9233654 RN |
1238 | // Enable other PCI supported attributes but not defined in PCI_IO_PROTOCOL\r |
1239 | // For PCI Express devices, Memory Write and Invalidate is hardwired to 0b so only enable it for PCI devices.\r | |
1240 | if (!PciIoDevice->IsPciExp) {\r | |
1241 | PCI_ENABLE_COMMAND_REGISTER (PciIoDevice, EFI_PCI_COMMAND_MEMORY_WRITE_AND_INVALIDATE);\r | |
1242 | }\r | |
9060e3ec | 1243 | }\r |
1244 | \r | |
1245 | FastB2BSupport = TRUE;\r | |
1246 | \r | |
1247 | //\r | |
1248 | // P2C can not support FB2B on the secondary side\r | |
1249 | //\r | |
1250 | if (IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {\r | |
1251 | FastB2BSupport = FALSE;\r | |
1252 | }\r | |
1253 | \r | |
1254 | //\r | |
1255 | // For RootBridge, PPB , P2C, go recursively to traverse all its children\r | |
1256 | //\r | |
1257 | CurrentLink = PciIoDevice->ChildList.ForwardLink;\r | |
1258 | while (CurrentLink != NULL && CurrentLink != &PciIoDevice->ChildList) {\r | |
1436aea4 MK |
1259 | Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);\r |
1260 | Status = DetermineDeviceAttribute (Temp);\r | |
9060e3ec | 1261 | if (EFI_ERROR (Status)) {\r |
1262 | return Status;\r | |
1263 | }\r | |
1436aea4 | 1264 | \r |
9060e3ec | 1265 | //\r |
fcdfcdbf | 1266 | // Detect Fast Back to Back support for the device under the bridge\r |
9060e3ec | 1267 | //\r |
1268 | Status = GetFastBackToBackSupport (Temp, PCI_PRIMARY_STATUS_OFFSET);\r | |
1269 | if (FastB2BSupport && EFI_ERROR (Status)) {\r | |
1270 | FastB2BSupport = FALSE;\r | |
1271 | }\r | |
1272 | \r | |
1273 | CurrentLink = CurrentLink->ForwardLink;\r | |
1274 | }\r | |
1436aea4 | 1275 | \r |
9060e3ec | 1276 | //\r |
1277 | // Set or clear Fast Back to Back bit for the whole bridge\r | |
1278 | //\r | |
1279 | if (!IsListEmpty (&PciIoDevice->ChildList)) {\r | |
9060e3ec | 1280 | if (IS_PCI_BRIDGE (&PciIoDevice->Pci)) {\r |
9060e3ec | 1281 | Status = GetFastBackToBackSupport (PciIoDevice, PCI_BRIDGE_STATUS_REGISTER_OFFSET);\r |
1282 | \r | |
1283 | if (EFI_ERROR (Status) || (!FastB2BSupport)) {\r | |
1284 | FastB2BSupport = FALSE;\r | |
1285 | PCI_DISABLE_BRIDGE_CONTROL_REGISTER (PciIoDevice, EFI_PCI_BRIDGE_CONTROL_FAST_BACK_TO_BACK);\r | |
1286 | } else {\r | |
1287 | PCI_ENABLE_BRIDGE_CONTROL_REGISTER (PciIoDevice, EFI_PCI_BRIDGE_CONTROL_FAST_BACK_TO_BACK);\r | |
1288 | }\r | |
1289 | }\r | |
1290 | \r | |
1291 | CurrentLink = PciIoDevice->ChildList.ForwardLink;\r | |
1292 | while (CurrentLink != NULL && CurrentLink != &PciIoDevice->ChildList) {\r | |
1293 | Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);\r | |
1294 | if (FastB2BSupport) {\r | |
1295 | PCI_ENABLE_COMMAND_REGISTER (Temp, EFI_PCI_COMMAND_FAST_BACK_TO_BACK);\r | |
1296 | } else {\r | |
1297 | PCI_DISABLE_COMMAND_REGISTER (Temp, EFI_PCI_COMMAND_FAST_BACK_TO_BACK);\r | |
1298 | }\r | |
1299 | \r | |
1300 | CurrentLink = CurrentLink->ForwardLink;\r | |
1301 | }\r | |
1302 | }\r | |
1436aea4 | 1303 | \r |
9060e3ec | 1304 | //\r |
1305 | // End for IsListEmpty\r | |
1306 | //\r | |
1307 | return EFI_SUCCESS;\r | |
1308 | }\r | |
1309 | \r | |
1310 | /**\r | |
1311 | This routine is used to update the bar information for those incompatible PCI device.\r | |
1312 | \r | |
1313 | @param PciIoDevice Input Pci device instance. Output Pci device instance with updated\r | |
1314 | Bar information.\r | |
cb8349f0 | 1315 | @param IgnoreOptionRom Output If the option rom of incompatible device need to be ignored.\r |
9060e3ec | 1316 | \r |
1317 | @retval EFI_SUCCESS Successfully updated bar information.\r | |
1318 | @retval EFI_UNSUPPORTED Given PCI device doesn't belong to incompatible PCI device list.\r | |
1319 | \r | |
1320 | **/\r | |
1321 | EFI_STATUS\r | |
1322 | UpdatePciInfo (\r | |
cb8349f0 MX |
1323 | IN OUT PCI_IO_DEVICE *PciIoDevice,\r |
1324 | OUT BOOLEAN *IgnoreOptionRom\r | |
9060e3ec | 1325 | )\r |
1326 | {\r | |
1436aea4 MK |
1327 | EFI_STATUS Status;\r |
1328 | UINTN BarIndex;\r | |
1329 | BOOLEAN SetFlag;\r | |
1330 | VOID *Configuration;\r | |
1331 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Ptr;\r | |
9060e3ec | 1332 | \r |
1333 | Configuration = NULL;\r | |
1334 | Status = EFI_SUCCESS;\r | |
1335 | \r | |
ea669c1b | 1336 | if (gIncompatiblePciDeviceSupport == NULL) {\r |
9060e3ec | 1337 | //\r |
1338 | // It can only be supported after the Incompatible PCI Device\r | |
1339 | // Support Protocol has been installed\r | |
1340 | //\r | |
1341 | Status = gBS->LocateProtocol (\r | |
1342 | &gEfiIncompatiblePciDeviceSupportProtocolGuid,\r | |
1343 | NULL,\r | |
1436aea4 | 1344 | (VOID **)&gIncompatiblePciDeviceSupport\r |
9060e3ec | 1345 | );\r |
1346 | }\r | |
9060e3ec | 1347 | \r |
1436aea4 MK |
1348 | if (Status == EFI_SUCCESS) {\r |
1349 | //\r | |
1350 | // Check whether the device belongs to incompatible devices from protocol or not\r | |
1351 | // If it is , then get its special requirement in the ACPI table\r | |
1352 | //\r | |
1353 | Status = gIncompatiblePciDeviceSupport->CheckDevice (\r | |
1354 | gIncompatiblePciDeviceSupport,\r | |
1355 | PciIoDevice->Pci.Hdr.VendorId,\r | |
1356 | PciIoDevice->Pci.Hdr.DeviceId,\r | |
1357 | PciIoDevice->Pci.Hdr.RevisionID,\r | |
1358 | PciIoDevice->Pci.Device.SubsystemVendorID,\r | |
1359 | PciIoDevice->Pci.Device.SubsystemID,\r | |
1360 | &Configuration\r | |
1361 | );\r | |
9060e3ec | 1362 | }\r |
1363 | \r | |
1436aea4 | 1364 | if (EFI_ERROR (Status) || (Configuration == NULL)) {\r |
9060e3ec | 1365 | return EFI_UNSUPPORTED;\r |
1366 | }\r | |
1367 | \r | |
1368 | //\r | |
1369 | // Update PCI device information from the ACPI table\r | |
1370 | //\r | |
1436aea4 | 1371 | Ptr = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Configuration;\r |
9060e3ec | 1372 | \r |
1373 | while (Ptr->Desc != ACPI_END_TAG_DESCRIPTOR) {\r | |
9060e3ec | 1374 | if (Ptr->Desc != ACPI_ADDRESS_SPACE_DESCRIPTOR) {\r |
1375 | //\r | |
1376 | // The format is not support\r | |
1377 | //\r | |
1378 | break;\r | |
1379 | }\r | |
1380 | \r | |
cb8349f0 MX |
1381 | //\r |
1382 | // According to "Table 20. ACPI 2.0 & 3.0 QWORD Address Space Descriptor Usage"\r | |
1383 | // in PI Spec 1.7, Type-specific flags can be set to 0 when Address Translation\r | |
1384 | // Offset == 6 to skip device option ROM (do not probe option rom BAR).\r | |
1385 | //\r | |
1386 | if (((Ptr->AddrTranslationOffset == PCI_MAX_BAR) && (Ptr->SpecificFlag == 0))) {\r | |
1387 | *IgnoreOptionRom = TRUE;\r | |
1388 | Ptr++;\r | |
1389 | continue;\r | |
1390 | }\r | |
1391 | \r | |
063bcff7 RN |
1392 | for (BarIndex = 0; BarIndex < PCI_MAX_BAR; BarIndex++) {\r |
1393 | if ((Ptr->AddrTranslationOffset != MAX_UINT64) &&\r | |
1394 | (Ptr->AddrTranslationOffset != MAX_UINT8) &&\r | |
1395 | (Ptr->AddrTranslationOffset != BarIndex)\r | |
1436aea4 MK |
1396 | )\r |
1397 | {\r | |
063bcff7 RN |
1398 | //\r |
1399 | // Skip updating when AddrTranslationOffset is not MAX_UINT64 or MAX_UINT8 (wide match).\r | |
1400 | // Skip updating when current BarIndex doesn't equal to AddrTranslationOffset.\r | |
1401 | // Comparing against MAX_UINT8 is to keep backward compatibility.\r | |
1402 | //\r | |
1403 | continue;\r | |
1404 | }\r | |
9060e3ec | 1405 | \r |
9060e3ec | 1406 | SetFlag = FALSE;\r |
1407 | switch (Ptr->ResType) {\r | |
1436aea4 | 1408 | case ACPI_ADDRESS_SPACE_TYPE_MEM:\r |
05070c1b RN |
1409 | \r |
1410 | //\r | |
1436aea4 | 1411 | // Make sure the bar is memory type\r |
05070c1b | 1412 | //\r |
1436aea4 MK |
1413 | if (CheckBarType (PciIoDevice, (UINT8)BarIndex, PciBarTypeMem)) {\r |
1414 | SetFlag = TRUE;\r | |
1415 | \r | |
1416 | //\r | |
1417 | // Ignored if granularity is 0.\r | |
1418 | // Ignored if PCI BAR is I/O or 32-bit memory.\r | |
1419 | // If PCI BAR is 64-bit memory and granularity is 32, then\r | |
1420 | // the PCI BAR resource is allocated below 4GB.\r | |
1421 | // If PCI BAR is 64-bit memory and granularity is 64, then\r | |
1422 | // the PCI BAR resource is allocated above 4GB.\r | |
1423 | //\r | |
1424 | if (PciIoDevice->PciBar[BarIndex].BarType == PciBarTypeMem64) {\r | |
1425 | switch (Ptr->AddrSpaceGranularity) {\r | |
1426 | case 32:\r | |
1427 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeMem32;\r | |
1428 | case 64:\r | |
1429 | PciIoDevice->PciBar[BarIndex].BarTypeFixed = TRUE;\r | |
1430 | break;\r | |
1431 | default:\r | |
1432 | break;\r | |
1433 | }\r | |
05070c1b | 1434 | }\r |
05070c1b | 1435 | \r |
1436aea4 MK |
1436 | if (PciIoDevice->PciBar[BarIndex].BarType == PciBarTypePMem64) {\r |
1437 | switch (Ptr->AddrSpaceGranularity) {\r | |
1438 | case 32:\r | |
1439 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypePMem32;\r | |
1440 | case 64:\r | |
1441 | PciIoDevice->PciBar[BarIndex].BarTypeFixed = TRUE;\r | |
1442 | break;\r | |
1443 | default:\r | |
1444 | break;\r | |
1445 | }\r | |
05070c1b RN |
1446 | }\r |
1447 | }\r | |
9060e3ec | 1448 | \r |
1436aea4 | 1449 | break;\r |
9060e3ec | 1450 | \r |
1436aea4 MK |
1451 | case ACPI_ADDRESS_SPACE_TYPE_IO:\r |
1452 | \r | |
1453 | //\r | |
1454 | // Make sure the bar is IO type\r | |
1455 | //\r | |
1456 | if (CheckBarType (PciIoDevice, (UINT8)BarIndex, PciBarTypeIo)) {\r | |
1457 | SetFlag = TRUE;\r | |
1458 | }\r | |
1459 | \r | |
1460 | break;\r | |
9060e3ec | 1461 | }\r |
1462 | \r | |
1463 | if (SetFlag) {\r | |
9060e3ec | 1464 | //\r |
1465 | // Update the new alignment for the device\r | |
1466 | //\r | |
1467 | SetNewAlign (&(PciIoDevice->PciBar[BarIndex].Alignment), Ptr->AddrRangeMax);\r | |
1468 | \r | |
1469 | //\r | |
1470 | // Update the new length for the device\r | |
1471 | //\r | |
8a93fa1e | 1472 | if (Ptr->AddrLen != 0) {\r |
9060e3ec | 1473 | PciIoDevice->PciBar[BarIndex].Length = Ptr->AddrLen;\r |
1474 | }\r | |
1475 | }\r | |
1476 | }\r | |
1477 | \r | |
1478 | Ptr++;\r | |
1479 | }\r | |
1480 | \r | |
1481 | FreePool (Configuration);\r | |
1482 | \r | |
1483 | return EFI_SUCCESS;\r | |
1484 | }\r | |
1485 | \r | |
1486 | /**\r | |
1487 | This routine will update the alignment with the new alignment.\r | |
8a93fa1e RN |
1488 | Compare with OLD_ALIGN/EVEN_ALIGN/SQUAD_ALIGN/DQUAD_ALIGN is to keep\r |
1489 | backward compatibility.\r | |
9060e3ec | 1490 | \r |
1491 | @param Alignment Input Old alignment. Output updated alignment.\r | |
1492 | @param NewAlignment New alignment.\r | |
1493 | \r | |
1494 | **/\r | |
1495 | VOID\r | |
1496 | SetNewAlign (\r | |
1436aea4 MK |
1497 | IN OUT UINT64 *Alignment,\r |
1498 | IN UINT64 NewAlignment\r | |
9060e3ec | 1499 | )\r |
1500 | {\r | |
1501 | UINT64 OldAlignment;\r | |
1502 | UINTN ShiftBit;\r | |
1503 | \r | |
1504 | //\r | |
1505 | // The new alignment is the same as the original,\r | |
1506 | // so skip it\r | |
1507 | //\r | |
8a93fa1e | 1508 | if ((NewAlignment == 0) || (NewAlignment == OLD_ALIGN)) {\r |
1436aea4 | 1509 | return;\r |
9060e3ec | 1510 | }\r |
1436aea4 | 1511 | \r |
9060e3ec | 1512 | //\r |
1513 | // Check the validity of the parameter\r | |
1514 | //\r | |
1436aea4 MK |
1515 | if ((NewAlignment != EVEN_ALIGN) &&\r |
1516 | (NewAlignment != SQUAD_ALIGN) &&\r | |
1517 | (NewAlignment != DQUAD_ALIGN))\r | |
1518 | {\r | |
9060e3ec | 1519 | *Alignment = NewAlignment;\r |
1436aea4 | 1520 | return;\r |
9060e3ec | 1521 | }\r |
1522 | \r | |
1436aea4 MK |
1523 | OldAlignment = (*Alignment) + 1;\r |
1524 | ShiftBit = 0;\r | |
9060e3ec | 1525 | \r |
1526 | //\r | |
1527 | // Get the first non-zero hex value of the length\r | |
1528 | //\r | |
1529 | while ((OldAlignment & 0x0F) == 0x00) {\r | |
1530 | OldAlignment = RShiftU64 (OldAlignment, 4);\r | |
1436aea4 | 1531 | ShiftBit += 4;\r |
9060e3ec | 1532 | }\r |
1533 | \r | |
1534 | //\r | |
1535 | // Adjust the alignment to even, quad or double quad boundary\r | |
1536 | //\r | |
8a93fa1e | 1537 | if (NewAlignment == EVEN_ALIGN) {\r |
9060e3ec | 1538 | if ((OldAlignment & 0x01) != 0) {\r |
1539 | OldAlignment = OldAlignment + 2 - (OldAlignment & 0x01);\r | |
1540 | }\r | |
8a93fa1e | 1541 | } else if (NewAlignment == SQUAD_ALIGN) {\r |
9060e3ec | 1542 | if ((OldAlignment & 0x03) != 0) {\r |
1543 | OldAlignment = OldAlignment + 4 - (OldAlignment & 0x03);\r | |
1544 | }\r | |
8a93fa1e | 1545 | } else if (NewAlignment == DQUAD_ALIGN) {\r |
9060e3ec | 1546 | if ((OldAlignment & 0x07) != 0) {\r |
1547 | OldAlignment = OldAlignment + 8 - (OldAlignment & 0x07);\r | |
1548 | }\r | |
1549 | }\r | |
1550 | \r | |
1551 | //\r | |
1552 | // Update the old value\r | |
1553 | //\r | |
1436aea4 MK |
1554 | NewAlignment = LShiftU64 (OldAlignment, ShiftBit) - 1;\r |
1555 | *Alignment = NewAlignment;\r | |
9060e3ec | 1556 | \r |
1436aea4 | 1557 | return;\r |
9060e3ec | 1558 | }\r |
1559 | \r | |
1560 | /**\r | |
1561 | Parse PCI IOV VF bar information and fill them into PCI device instance.\r | |
1562 | \r | |
1563 | @param PciIoDevice Pci device instance.\r | |
1564 | @param Offset Bar offset.\r | |
1565 | @param BarIndex Bar index.\r | |
1566 | \r | |
1567 | @return Next bar offset.\r | |
1568 | \r | |
1569 | **/\r | |
1570 | UINTN\r | |
1571 | PciIovParseVfBar (\r | |
1572 | IN PCI_IO_DEVICE *PciIoDevice,\r | |
1573 | IN UINTN Offset,\r | |
1574 | IN UINTN BarIndex\r | |
1575 | )\r | |
1576 | {\r | |
1577 | UINT32 Value;\r | |
1578 | UINT32 OriginalValue;\r | |
1579 | UINT32 Mask;\r | |
9060e3ec | 1580 | EFI_STATUS Status;\r |
1581 | \r | |
1582 | //\r | |
1583 | // Ensure it is called properly\r | |
1584 | //\r | |
1585 | ASSERT (PciIoDevice->SrIovCapabilityOffset != 0);\r | |
1586 | if (PciIoDevice->SrIovCapabilityOffset == 0) {\r | |
1587 | return 0;\r | |
1588 | }\r | |
1589 | \r | |
1590 | OriginalValue = 0;\r | |
1591 | Value = 0;\r | |
1592 | \r | |
1593 | Status = VfBarExisted (\r | |
1436aea4 MK |
1594 | PciIoDevice,\r |
1595 | Offset,\r | |
1596 | &Value,\r | |
1597 | &OriginalValue\r | |
1598 | );\r | |
9060e3ec | 1599 | \r |
1600 | if (EFI_ERROR (Status)) {\r | |
1601 | PciIoDevice->VfPciBar[BarIndex].BaseAddress = 0;\r | |
1602 | PciIoDevice->VfPciBar[BarIndex].Length = 0;\r | |
1603 | PciIoDevice->VfPciBar[BarIndex].Alignment = 0;\r | |
1604 | \r | |
1605 | //\r | |
1606 | // Scan all the BARs anyway\r | |
1607 | //\r | |
1436aea4 | 1608 | PciIoDevice->VfPciBar[BarIndex].Offset = (UINT16)Offset;\r |
9060e3ec | 1609 | return Offset + 4;\r |
1610 | }\r | |
1611 | \r | |
1436aea4 | 1612 | PciIoDevice->VfPciBar[BarIndex].Offset = (UINT16)Offset;\r |
aa75dfec | 1613 | if ((Value & 0x01) != 0) {\r |
9060e3ec | 1614 | //\r |
1615 | // Device I/Os. Impossible\r | |
1616 | //\r | |
1617 | ASSERT (FALSE);\r | |
1618 | return Offset + 4;\r | |
9060e3ec | 1619 | } else {\r |
1436aea4 | 1620 | Mask = 0xfffffff0;\r |
9060e3ec | 1621 | \r |
1622 | PciIoDevice->VfPciBar[BarIndex].BaseAddress = OriginalValue & Mask;\r | |
1623 | \r | |
1624 | switch (Value & 0x07) {\r | |
1436aea4 MK |
1625 | //\r |
1626 | // memory space; anywhere in 32 bit address space\r | |
1627 | //\r | |
1628 | case 0x00:\r | |
1629 | if ((Value & 0x08) != 0) {\r | |
1630 | PciIoDevice->VfPciBar[BarIndex].BarType = PciBarTypePMem32;\r | |
1631 | } else {\r | |
1632 | PciIoDevice->VfPciBar[BarIndex].BarType = PciBarTypeMem32;\r | |
1633 | }\r | |
9060e3ec | 1634 | \r |
1436aea4 MK |
1635 | PciIoDevice->VfPciBar[BarIndex].Length = (~(Value & Mask)) + 1;\r |
1636 | PciIoDevice->VfPciBar[BarIndex].Alignment = PciIoDevice->VfPciBar[BarIndex].Length - 1;\r | |
1637 | \r | |
1638 | //\r | |
1639 | // Adjust Length\r | |
1640 | //\r | |
1641 | PciIoDevice->VfPciBar[BarIndex].Length = MultU64x32 (PciIoDevice->VfPciBar[BarIndex].Length, PciIoDevice->InitialVFs);\r | |
1642 | //\r | |
1643 | // Adjust Alignment\r | |
1644 | //\r | |
1645 | if (PciIoDevice->VfPciBar[BarIndex].Alignment < PciIoDevice->SystemPageSize - 1) {\r | |
1646 | PciIoDevice->VfPciBar[BarIndex].Alignment = PciIoDevice->SystemPageSize - 1;\r | |
1647 | }\r | |
9060e3ec | 1648 | \r |
1436aea4 | 1649 | break;\r |
9060e3ec | 1650 | \r |
1651 | //\r | |
1436aea4 | 1652 | // memory space; anywhere in 64 bit address space\r |
9060e3ec | 1653 | //\r |
1436aea4 MK |
1654 | case 0x04:\r |
1655 | if ((Value & 0x08) != 0) {\r | |
1656 | PciIoDevice->VfPciBar[BarIndex].BarType = PciBarTypePMem64;\r | |
1657 | } else {\r | |
1658 | PciIoDevice->VfPciBar[BarIndex].BarType = PciBarTypeMem64;\r | |
1659 | }\r | |
9060e3ec | 1660 | \r |
1436aea4 MK |
1661 | //\r |
1662 | // According to PCI 2.2,if the bar indicates a memory 64 decoding, next bar\r | |
1663 | // is regarded as an extension for the first bar. As a result\r | |
1664 | // the sizing will be conducted on combined 64 bit value\r | |
1665 | // Here just store the masked first 32bit value for future size\r | |
1666 | // calculation\r | |
1667 | //\r | |
1668 | PciIoDevice->VfPciBar[BarIndex].Length = Value & Mask;\r | |
1669 | PciIoDevice->VfPciBar[BarIndex].Alignment = PciIoDevice->VfPciBar[BarIndex].Length - 1;\r | |
9060e3ec | 1670 | \r |
1436aea4 MK |
1671 | if (PciIoDevice->VfPciBar[BarIndex].Alignment < PciIoDevice->SystemPageSize - 1) {\r |
1672 | PciIoDevice->VfPciBar[BarIndex].Alignment = PciIoDevice->SystemPageSize - 1;\r | |
1673 | }\r | |
9060e3ec | 1674 | \r |
1436aea4 MK |
1675 | //\r |
1676 | // Increment the offset to point to next DWORD\r | |
1677 | //\r | |
1678 | Offset += 4;\r | |
9060e3ec | 1679 | \r |
1436aea4 MK |
1680 | Status = VfBarExisted (\r |
1681 | PciIoDevice,\r | |
1682 | Offset,\r | |
1683 | &Value,\r | |
1684 | &OriginalValue\r | |
1685 | );\r | |
9060e3ec | 1686 | \r |
1436aea4 MK |
1687 | if (EFI_ERROR (Status)) {\r |
1688 | PciIoDevice->VfPciBar[BarIndex].BarType = PciBarTypeUnknown;\r | |
1689 | return Offset + 4;\r | |
1690 | }\r | |
9060e3ec | 1691 | \r |
1436aea4 MK |
1692 | //\r |
1693 | // Fix the length to support some special 64 bit BAR\r | |
1694 | //\r | |
1695 | Value |= ((UINT32)-1 << HighBitSet32 (Value));\r | |
9060e3ec | 1696 | \r |
1436aea4 MK |
1697 | //\r |
1698 | // Calculate the size of 64bit bar\r | |
1699 | //\r | |
1700 | PciIoDevice->VfPciBar[BarIndex].BaseAddress |= LShiftU64 ((UINT64)OriginalValue, 32);\r | |
9060e3ec | 1701 | \r |
1436aea4 MK |
1702 | PciIoDevice->VfPciBar[BarIndex].Length = PciIoDevice->VfPciBar[BarIndex].Length | LShiftU64 ((UINT64)Value, 32);\r |
1703 | PciIoDevice->VfPciBar[BarIndex].Length = (~(PciIoDevice->VfPciBar[BarIndex].Length)) + 1;\r | |
1704 | PciIoDevice->VfPciBar[BarIndex].Alignment = PciIoDevice->VfPciBar[BarIndex].Length - 1;\r | |
9060e3ec | 1705 | \r |
1436aea4 MK |
1706 | //\r |
1707 | // Adjust Length\r | |
1708 | //\r | |
1709 | PciIoDevice->VfPciBar[BarIndex].Length = MultU64x32 (PciIoDevice->VfPciBar[BarIndex].Length, PciIoDevice->InitialVFs);\r | |
1710 | //\r | |
1711 | // Adjust Alignment\r | |
1712 | //\r | |
1713 | if (PciIoDevice->VfPciBar[BarIndex].Alignment < PciIoDevice->SystemPageSize - 1) {\r | |
1714 | PciIoDevice->VfPciBar[BarIndex].Alignment = PciIoDevice->SystemPageSize - 1;\r | |
1715 | }\r | |
9060e3ec | 1716 | \r |
1436aea4 | 1717 | break;\r |
9060e3ec | 1718 | \r |
1719 | //\r | |
1436aea4 | 1720 | // reserved\r |
9060e3ec | 1721 | //\r |
1436aea4 MK |
1722 | default:\r |
1723 | PciIoDevice->VfPciBar[BarIndex].BarType = PciBarTypeUnknown;\r | |
1724 | PciIoDevice->VfPciBar[BarIndex].Length = (~(Value & Mask)) + 1;\r | |
1725 | PciIoDevice->VfPciBar[BarIndex].Alignment = PciIoDevice->VfPciBar[BarIndex].Length - 1;\r | |
9060e3ec | 1726 | \r |
1436aea4 MK |
1727 | if (PciIoDevice->VfPciBar[BarIndex].Alignment < PciIoDevice->SystemPageSize - 1) {\r |
1728 | PciIoDevice->VfPciBar[BarIndex].Alignment = PciIoDevice->SystemPageSize - 1;\r | |
1729 | }\r | |
9060e3ec | 1730 | \r |
1436aea4 | 1731 | break;\r |
9060e3ec | 1732 | }\r |
1733 | }\r | |
d1102dba | 1734 | \r |
9060e3ec | 1735 | //\r |
1736 | // Check the length again so as to keep compatible with some special bars\r | |
1737 | //\r | |
1738 | if (PciIoDevice->VfPciBar[BarIndex].Length == 0) {\r | |
1739 | PciIoDevice->VfPciBar[BarIndex].BarType = PciBarTypeUnknown;\r | |
1740 | PciIoDevice->VfPciBar[BarIndex].BaseAddress = 0;\r | |
1741 | PciIoDevice->VfPciBar[BarIndex].Alignment = 0;\r | |
1742 | }\r | |
d1102dba | 1743 | \r |
9060e3ec | 1744 | //\r |
1745 | // Increment number of bar\r | |
1746 | //\r | |
1747 | return Offset + 4;\r | |
1748 | }\r | |
1749 | \r | |
1750 | /**\r | |
1751 | Parse PCI bar information and fill them into PCI device instance.\r | |
1752 | \r | |
1753 | @param PciIoDevice Pci device instance.\r | |
1754 | @param Offset Bar offset.\r | |
1755 | @param BarIndex Bar index.\r | |
1756 | \r | |
1757 | @return Next bar offset.\r | |
1758 | \r | |
1759 | **/\r | |
1760 | UINTN\r | |
1761 | PciParseBar (\r | |
1762 | IN PCI_IO_DEVICE *PciIoDevice,\r | |
1763 | IN UINTN Offset,\r | |
1764 | IN UINTN BarIndex\r | |
1765 | )\r | |
1766 | {\r | |
1767 | UINT32 Value;\r | |
1768 | UINT32 OriginalValue;\r | |
1769 | UINT32 Mask;\r | |
9060e3ec | 1770 | EFI_STATUS Status;\r |
1771 | \r | |
1772 | OriginalValue = 0;\r | |
1773 | Value = 0;\r | |
1774 | \r | |
1775 | Status = BarExisted (\r | |
1776 | PciIoDevice,\r | |
1777 | Offset,\r | |
1778 | &Value,\r | |
1779 | &OriginalValue\r | |
1780 | );\r | |
1781 | \r | |
1782 | if (EFI_ERROR (Status)) {\r | |
1783 | PciIoDevice->PciBar[BarIndex].BaseAddress = 0;\r | |
1784 | PciIoDevice->PciBar[BarIndex].Length = 0;\r | |
1785 | PciIoDevice->PciBar[BarIndex].Alignment = 0;\r | |
1786 | \r | |
1787 | //\r | |
1788 | // Some devices don't fully comply to PCI spec 2.2. So be to scan all the BARs anyway\r | |
1789 | //\r | |
1436aea4 | 1790 | PciIoDevice->PciBar[BarIndex].Offset = (UINT8)Offset;\r |
9060e3ec | 1791 | return Offset + 4;\r |
1792 | }\r | |
1793 | \r | |
05070c1b | 1794 | PciIoDevice->PciBar[BarIndex].BarTypeFixed = FALSE;\r |
1436aea4 | 1795 | PciIoDevice->PciBar[BarIndex].Offset = (UINT8)Offset;\r |
9060e3ec | 1796 | if ((Value & 0x01) != 0) {\r |
1797 | //\r | |
1798 | // Device I/Os\r | |
1799 | //\r | |
1800 | Mask = 0xfffffffc;\r | |
1801 | \r | |
1802 | if ((Value & 0xFFFF0000) != 0) {\r | |
1803 | //\r | |
1804 | // It is a IO32 bar\r | |
1805 | //\r | |
1806 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeIo32;\r | |
1807 | PciIoDevice->PciBar[BarIndex].Length = ((~(Value & Mask)) + 1);\r | |
1808 | PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;\r | |
9060e3ec | 1809 | } else {\r |
1810 | //\r | |
1811 | // It is a IO16 bar\r | |
1812 | //\r | |
1813 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeIo16;\r | |
1814 | PciIoDevice->PciBar[BarIndex].Length = 0x0000FFFF & ((~(Value & Mask)) + 1);\r | |
1815 | PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;\r | |
9060e3ec | 1816 | }\r |
1436aea4 | 1817 | \r |
9060e3ec | 1818 | //\r |
fcdfcdbf | 1819 | // Workaround. Some platforms implement IO bar with 0 length\r |
9060e3ec | 1820 | // Need to treat it as no-bar\r |
1821 | //\r | |
1822 | if (PciIoDevice->PciBar[BarIndex].Length == 0) {\r | |
1436aea4 | 1823 | PciIoDevice->PciBar[BarIndex].BarType = (PCI_BAR_TYPE)0;\r |
9060e3ec | 1824 | }\r |
1825 | \r | |
1436aea4 | 1826 | PciIoDevice->PciBar[BarIndex].BaseAddress = OriginalValue & Mask;\r |
9060e3ec | 1827 | } else {\r |
1436aea4 | 1828 | Mask = 0xfffffff0;\r |
9060e3ec | 1829 | \r |
1830 | PciIoDevice->PciBar[BarIndex].BaseAddress = OriginalValue & Mask;\r | |
1831 | \r | |
1832 | switch (Value & 0x07) {\r | |
1436aea4 MK |
1833 | //\r |
1834 | // memory space; anywhere in 32 bit address space\r | |
1835 | //\r | |
1836 | case 0x00:\r | |
1837 | if ((Value & 0x08) != 0) {\r | |
1838 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypePMem32;\r | |
1839 | } else {\r | |
1840 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeMem32;\r | |
1841 | }\r | |
9060e3ec | 1842 | \r |
1436aea4 MK |
1843 | PciIoDevice->PciBar[BarIndex].Length = (~(Value & Mask)) + 1;\r |
1844 | if (PciIoDevice->PciBar[BarIndex].Length < (SIZE_4KB)) {\r | |
1845 | //\r | |
1846 | // Force minimum 4KByte alignment for Virtualization technology for Directed I/O\r | |
1847 | //\r | |
1848 | PciIoDevice->PciBar[BarIndex].Alignment = (SIZE_4KB - 1);\r | |
1849 | } else {\r | |
1850 | PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;\r | |
1851 | }\r | |
1852 | \r | |
1853 | break;\r | |
1854 | \r | |
1855 | //\r | |
1856 | // memory space; anywhere in 64 bit address space\r | |
1857 | //\r | |
1858 | case 0x04:\r | |
1859 | if ((Value & 0x08) != 0) {\r | |
1860 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypePMem64;\r | |
1861 | } else {\r | |
1862 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeMem64;\r | |
1863 | }\r | |
9060e3ec | 1864 | \r |
9060e3ec | 1865 | //\r |
1436aea4 MK |
1866 | // According to PCI 2.2,if the bar indicates a memory 64 decoding, next bar\r |
1867 | // is regarded as an extension for the first bar. As a result\r | |
1868 | // the sizing will be conducted on combined 64 bit value\r | |
1869 | // Here just store the masked first 32bit value for future size\r | |
1870 | // calculation\r | |
9060e3ec | 1871 | //\r |
1436aea4 | 1872 | PciIoDevice->PciBar[BarIndex].Length = Value & Mask;\r |
9060e3ec | 1873 | PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;\r |
9060e3ec | 1874 | \r |
1436aea4 MK |
1875 | //\r |
1876 | // Increment the offset to point to next DWORD\r | |
1877 | //\r | |
1878 | Offset += 4;\r | |
9060e3ec | 1879 | \r |
1436aea4 MK |
1880 | Status = BarExisted (\r |
1881 | PciIoDevice,\r | |
1882 | Offset,\r | |
1883 | &Value,\r | |
1884 | &OriginalValue\r | |
1885 | );\r | |
9060e3ec | 1886 | \r |
1436aea4 MK |
1887 | if (EFI_ERROR (Status)) {\r |
1888 | //\r | |
1889 | // the high 32 bit does not claim any BAR, we need to re-check the low 32 bit BAR again\r | |
1890 | //\r | |
1891 | if (PciIoDevice->PciBar[BarIndex].Length == 0) {\r | |
1892 | //\r | |
1893 | // some device implement MMIO bar with 0 length, need to treat it as no-bar\r | |
1894 | //\r | |
1895 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeUnknown;\r | |
1896 | return Offset + 4;\r | |
1897 | }\r | |
1898 | }\r | |
9060e3ec | 1899 | \r |
1436aea4 MK |
1900 | //\r |
1901 | // Fix the length to support some special 64 bit BAR\r | |
1902 | //\r | |
1903 | if (Value == 0) {\r | |
1904 | DEBUG ((DEBUG_INFO, "[PciBus]BAR probing for upper 32bit of MEM64 BAR returns 0, change to 0xFFFFFFFF.\n"));\r | |
1905 | Value = (UINT32)-1;\r | |
1906 | } else {\r | |
1907 | Value |= ((UINT32)(-1) << HighBitSet32 (Value));\r | |
1908 | }\r | |
9060e3ec | 1909 | \r |
9060e3ec | 1910 | //\r |
1436aea4 | 1911 | // Calculate the size of 64bit bar\r |
9060e3ec | 1912 | //\r |
1436aea4 MK |
1913 | PciIoDevice->PciBar[BarIndex].BaseAddress |= LShiftU64 ((UINT64)OriginalValue, 32);\r |
1914 | \r | |
1915 | PciIoDevice->PciBar[BarIndex].Length = PciIoDevice->PciBar[BarIndex].Length | LShiftU64 ((UINT64)Value, 32);\r | |
1916 | PciIoDevice->PciBar[BarIndex].Length = (~(PciIoDevice->PciBar[BarIndex].Length)) + 1;\r | |
1917 | if (PciIoDevice->PciBar[BarIndex].Length < (SIZE_4KB)) {\r | |
9060e3ec | 1918 | //\r |
1436aea4 | 1919 | // Force minimum 4KByte alignment for Virtualization technology for Directed I/O\r |
9060e3ec | 1920 | //\r |
1436aea4 MK |
1921 | PciIoDevice->PciBar[BarIndex].Alignment = (SIZE_4KB - 1);\r |
1922 | } else {\r | |
1923 | PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;\r | |
9060e3ec | 1924 | }\r |
9060e3ec | 1925 | \r |
1436aea4 | 1926 | break;\r |
9060e3ec | 1927 | \r |
1928 | //\r | |
1436aea4 | 1929 | // reserved\r |
9060e3ec | 1930 | //\r |
1436aea4 MK |
1931 | default:\r |
1932 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeUnknown;\r | |
1933 | PciIoDevice->PciBar[BarIndex].Length = (~(Value & Mask)) + 1;\r | |
1934 | if (PciIoDevice->PciBar[BarIndex].Length < (SIZE_4KB)) {\r | |
1935 | //\r | |
1936 | // Force minimum 4KByte alignment for Virtualization technology for Directed I/O\r | |
1937 | //\r | |
1938 | PciIoDevice->PciBar[BarIndex].Alignment = (SIZE_4KB - 1);\r | |
1939 | } else {\r | |
1940 | PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;\r | |
1941 | }\r | |
9060e3ec | 1942 | \r |
1436aea4 | 1943 | break;\r |
9060e3ec | 1944 | }\r |
1945 | }\r | |
1946 | \r | |
1947 | //\r | |
1948 | // Check the length again so as to keep compatible with some special bars\r | |
1949 | //\r | |
1950 | if (PciIoDevice->PciBar[BarIndex].Length == 0) {\r | |
1951 | PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeUnknown;\r | |
1952 | PciIoDevice->PciBar[BarIndex].BaseAddress = 0;\r | |
1953 | PciIoDevice->PciBar[BarIndex].Alignment = 0;\r | |
1954 | }\r | |
1955 | \r | |
1956 | //\r | |
1957 | // Increment number of bar\r | |
1958 | //\r | |
1959 | return Offset + 4;\r | |
1960 | }\r | |
1961 | \r | |
1962 | /**\r | |
1963 | This routine is used to initialize the bar of a PCI device.\r | |
1964 | \r | |
1965 | @param PciIoDevice Pci device instance.\r | |
1966 | \r | |
1967 | @note It can be called typically when a device is going to be rejected.\r | |
1968 | \r | |
1969 | **/\r | |
1970 | VOID\r | |
1971 | InitializePciDevice (\r | |
1436aea4 | 1972 | IN PCI_IO_DEVICE *PciIoDevice\r |
9060e3ec | 1973 | )\r |
1974 | {\r | |
1436aea4 MK |
1975 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
1976 | UINT8 Offset;\r | |
9060e3ec | 1977 | \r |
1978 | PciIo = &(PciIoDevice->PciIo);\r | |
1979 | \r | |
1980 | //\r | |
1981 | // Put all the resource apertures\r | |
1982 | // Resource base is set to all ones so as to indicate its resource\r | |
fcdfcdbf | 1983 | // has not been allocated\r |
9060e3ec | 1984 | //\r |
1985 | for (Offset = 0x10; Offset <= 0x24; Offset += sizeof (UINT32)) {\r | |
1986 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, Offset, 1, &gAllOne);\r | |
1987 | }\r | |
1988 | }\r | |
1989 | \r | |
1990 | /**\r | |
1991 | This routine is used to initialize the bar of a PCI-PCI Bridge device.\r | |
1992 | \r | |
1993 | @param PciIoDevice PCI-PCI bridge device instance.\r | |
1994 | \r | |
1995 | **/\r | |
1996 | VOID\r | |
1997 | InitializePpb (\r | |
1436aea4 | 1998 | IN PCI_IO_DEVICE *PciIoDevice\r |
9060e3ec | 1999 | )\r |
2000 | {\r | |
1436aea4 | 2001 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
9060e3ec | 2002 | \r |
2003 | PciIo = &(PciIoDevice->PciIo);\r | |
2004 | \r | |
2005 | //\r | |
2006 | // Put all the resource apertures including IO16\r | |
2007 | // Io32, pMem32, pMem64 to quiescent state\r | |
2008 | // Resource base all ones, Resource limit all zeros\r | |
2009 | //\r | |
2010 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &gAllOne);\r | |
2011 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint8, 0x1D, 1, &gAllZero);\r | |
2012 | \r | |
2013 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint16, 0x20, 1, &gAllOne);\r | |
2014 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint16, 0x22, 1, &gAllZero);\r | |
2015 | \r | |
2016 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint16, 0x24, 1, &gAllOne);\r | |
2017 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint16, 0x26, 1, &gAllZero);\r | |
2018 | \r | |
2019 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x28, 1, &gAllOne);\r | |
2020 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x2C, 1, &gAllZero);\r | |
2021 | \r | |
2022 | //\r | |
2023 | // Don't support use io32 as for now\r | |
2024 | //\r | |
2025 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint16, 0x30, 1, &gAllOne);\r | |
2026 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint16, 0x32, 1, &gAllZero);\r | |
2027 | \r | |
2028 | //\r | |
2029 | // Force Interrupt line to zero for cards that come up randomly\r | |
2030 | //\r | |
2031 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint8, 0x3C, 1, &gAllZero);\r | |
2032 | }\r | |
2033 | \r | |
2034 | /**\r | |
2035 | This routine is used to initialize the bar of a PCI Card Bridge device.\r | |
2036 | \r | |
2037 | @param PciIoDevice PCI Card bridge device.\r | |
2038 | \r | |
2039 | **/\r | |
2040 | VOID\r | |
2041 | InitializeP2C (\r | |
1436aea4 | 2042 | IN PCI_IO_DEVICE *PciIoDevice\r |
9060e3ec | 2043 | )\r |
2044 | {\r | |
1436aea4 | 2045 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
9060e3ec | 2046 | \r |
2047 | PciIo = &(PciIoDevice->PciIo);\r | |
2048 | \r | |
2049 | //\r | |
2050 | // Put all the resource apertures including IO16\r | |
2051 | // Io32, pMem32, pMem64 to quiescent state(\r | |
2052 | // Resource base all ones, Resource limit all zeros\r | |
2053 | //\r | |
2054 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x1c, 1, &gAllOne);\r | |
2055 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x20, 1, &gAllZero);\r | |
2056 | \r | |
2057 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x24, 1, &gAllOne);\r | |
2058 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x28, 1, &gAllZero);\r | |
2059 | \r | |
2060 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x2c, 1, &gAllOne);\r | |
2061 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x30, 1, &gAllZero);\r | |
2062 | \r | |
2063 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x34, 1, &gAllOne);\r | |
2064 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x38, 1, &gAllZero);\r | |
2065 | \r | |
2066 | //\r | |
2067 | // Force Interrupt line to zero for cards that come up randomly\r | |
2068 | //\r | |
2069 | PciIo->Pci.Write (PciIo, EfiPciIoWidthUint8, 0x3C, 1, &gAllZero);\r | |
2070 | }\r | |
2071 | \r | |
1e947f9b | 2072 | /**\r |
995d8b85 JY |
2073 | Authenticate the PCI device by using DeviceSecurityProtocol.\r |
2074 | \r | |
2075 | @param PciIoDevice PCI device.\r | |
2076 | \r | |
2077 | @retval EFI_SUCCESS The device passes the authentication.\r | |
2078 | @return not EFI_SUCCESS The device failes the authentication or\r | |
2079 | unexpected error happen during authentication.\r | |
1e947f9b | 2080 | **/\r |
995d8b85 JY |
2081 | EFI_STATUS\r |
2082 | AuthenticatePciDevice (\r | |
1436aea4 | 2083 | IN PCI_IO_DEVICE *PciIoDevice\r |
995d8b85 JY |
2084 | )\r |
2085 | {\r | |
2086 | EDKII_DEVICE_IDENTIFIER DeviceIdentifier;\r | |
2087 | EFI_STATUS Status;\r | |
2088 | \r | |
2089 | if (mDeviceSecurityProtocol != NULL) {\r | |
2090 | //\r | |
2091 | // Prepare the parameter\r | |
2092 | //\r | |
2093 | DeviceIdentifier.Version = EDKII_DEVICE_IDENTIFIER_REVISION;\r | |
2094 | CopyGuid (&DeviceIdentifier.DeviceType, &gEdkiiDeviceIdentifierTypePciGuid);\r | |
2095 | DeviceIdentifier.DeviceHandle = NULL;\r | |
1436aea4 MK |
2096 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
2097 | &DeviceIdentifier.DeviceHandle,\r | |
2098 | &gEfiDevicePathProtocolGuid,\r | |
2099 | PciIoDevice->DevicePath,\r | |
2100 | &gEdkiiDeviceIdentifierTypePciGuid,\r | |
2101 | &PciIoDevice->PciIo,\r | |
2102 | NULL\r | |
2103 | );\r | |
2104 | if (EFI_ERROR (Status)) {\r | |
995d8b85 JY |
2105 | return Status;\r |
2106 | }\r | |
2107 | \r | |
2108 | //\r | |
2109 | // Do DeviceAuthentication\r | |
2110 | //\r | |
2111 | Status = mDeviceSecurityProtocol->DeviceAuthenticate (mDeviceSecurityProtocol, &DeviceIdentifier);\r | |
2112 | //\r | |
2113 | // Always uninstall, because they are only for Authentication.\r | |
2114 | // No need to check return Status.\r | |
2115 | //\r | |
2116 | gBS->UninstallMultipleProtocolInterfaces (\r | |
1436aea4 MK |
2117 | DeviceIdentifier.DeviceHandle,\r |
2118 | &gEfiDevicePathProtocolGuid,\r | |
2119 | PciIoDevice->DevicePath,\r | |
2120 | &gEdkiiDeviceIdentifierTypePciGuid,\r | |
2121 | &PciIoDevice->PciIo,\r | |
2122 | NULL\r | |
2123 | );\r | |
995d8b85 JY |
2124 | return Status;\r |
2125 | }\r | |
2126 | \r | |
2127 | //\r | |
2128 | // Device Security Protocol is not found, just return success\r | |
2129 | //\r | |
2130 | return EFI_SUCCESS;\r | |
2131 | }\r | |
2132 | \r | |
c095122d RN |
2133 | /**\r |
2134 | Checks if PCI device is Root Bridge.\r | |
2135 | \r | |
2136 | @param PciIoDevice Instance of PCI device\r | |
2137 | \r | |
2138 | @retval TRUE Device is Root Bridge\r | |
2139 | @retval FALSE Device is not Root Bridge\r | |
2140 | \r | |
2141 | **/\r | |
2142 | BOOLEAN\r | |
2143 | IsRootBridge (\r | |
2144 | IN PCI_IO_DEVICE *PciIoDevice\r | |
2145 | )\r | |
2146 | {\r | |
2147 | if (PciIoDevice->Parent == NULL) {\r | |
2148 | return TRUE;\r | |
2149 | } else {\r | |
2150 | return FALSE;\r | |
2151 | }\r | |
2152 | }\r | |
2153 | \r | |
9060e3ec | 2154 | /**\r |
fcdfcdbf | 2155 | Create and initialize general PCI I/O device instance for\r |
9060e3ec | 2156 | PCI device/bridge device/hotplug bridge device.\r |
2157 | \r | |
fcdfcdbf | 2158 | @param Bridge Parent bridge instance.\r |
9060e3ec | 2159 | @param Pci Input Pci information block.\r |
2160 | @param Bus Device Bus NO.\r | |
2161 | @param Device Device device NO.\r | |
2162 | @param Func Device func NO.\r | |
2163 | \r | |
2164 | @return Instance of PCI device. NULL means no instance created.\r | |
2165 | \r | |
2166 | **/\r | |
2167 | PCI_IO_DEVICE *\r | |
2168 | CreatePciIoDevice (\r | |
1436aea4 MK |
2169 | IN PCI_IO_DEVICE *Bridge,\r |
2170 | IN PCI_TYPE00 *Pci,\r | |
2171 | IN UINT8 Bus,\r | |
2172 | IN UINT8 Device,\r | |
2173 | IN UINT8 Func\r | |
9060e3ec | 2174 | )\r |
2175 | {\r | |
d4048391 | 2176 | PCI_IO_DEVICE *PciIoDevice;\r |
9060e3ec | 2177 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
2178 | EFI_STATUS Status;\r | |
2179 | \r | |
2180 | PciIoDevice = AllocateZeroPool (sizeof (PCI_IO_DEVICE));\r | |
2181 | if (PciIoDevice == NULL) {\r | |
2182 | return NULL;\r | |
2183 | }\r | |
2184 | \r | |
1436aea4 MK |
2185 | PciIoDevice->Signature = PCI_IO_DEVICE_SIGNATURE;\r |
2186 | PciIoDevice->Handle = NULL;\r | |
2187 | PciIoDevice->PciRootBridgeIo = Bridge->PciRootBridgeIo;\r | |
2188 | PciIoDevice->DevicePath = NULL;\r | |
2189 | PciIoDevice->BusNumber = Bus;\r | |
2190 | PciIoDevice->DeviceNumber = Device;\r | |
2191 | PciIoDevice->FunctionNumber = Func;\r | |
2192 | PciIoDevice->Decodes = 0;\r | |
9060e3ec | 2193 | \r |
2194 | if (gFullEnumeration) {\r | |
2195 | PciIoDevice->Allocated = FALSE;\r | |
2196 | } else {\r | |
2197 | PciIoDevice->Allocated = TRUE;\r | |
2198 | }\r | |
2199 | \r | |
1436aea4 MK |
2200 | PciIoDevice->Registered = FALSE;\r |
2201 | PciIoDevice->Attributes = 0;\r | |
2202 | PciIoDevice->Supports = 0;\r | |
2203 | PciIoDevice->BusOverride = FALSE;\r | |
2204 | PciIoDevice->AllOpRomProcessed = FALSE;\r | |
9060e3ec | 2205 | \r |
1436aea4 | 2206 | PciIoDevice->IsPciExp = FALSE;\r |
9060e3ec | 2207 | \r |
2208 | CopyMem (&(PciIoDevice->Pci), Pci, sizeof (PCI_TYPE01));\r | |
2209 | \r | |
2210 | //\r | |
2211 | // Initialize the PCI I/O instance structure\r | |
2212 | //\r | |
2213 | InitializePciIoInstance (PciIoDevice);\r | |
2214 | InitializePciDriverOverrideInstance (PciIoDevice);\r | |
2215 | InitializePciLoadFile2 (PciIoDevice);\r | |
2216 | PciIo = &PciIoDevice->PciIo;\r | |
2217 | \r | |
b0bc24af AW |
2218 | //\r |
2219 | // Create a device path for this PCI device and store it into its private data\r | |
2220 | //\r | |
2221 | CreatePciDevicePath (\r | |
2222 | Bridge->DevicePath,\r | |
2223 | PciIoDevice\r | |
2224 | );\r | |
2225 | \r | |
9060e3ec | 2226 | //\r |
2227 | // Detect if PCI Express Device\r | |
2228 | //\r | |
2229 | PciIoDevice->PciExpressCapabilityOffset = 0;\r | |
1436aea4 MK |
2230 | Status = LocateCapabilityRegBlock (\r |
2231 | PciIoDevice,\r | |
2232 | EFI_PCI_CAPABILITY_ID_PCIEXP,\r | |
2233 | &PciIoDevice->PciExpressCapabilityOffset,\r | |
2234 | NULL\r | |
2235 | );\r | |
9060e3ec | 2236 | if (!EFI_ERROR (Status)) {\r |
2237 | PciIoDevice->IsPciExp = TRUE;\r | |
2238 | }\r | |
2239 | \r | |
995d8b85 JY |
2240 | //\r |
2241 | // Now we can do the authentication check for the device.\r | |
2242 | //\r | |
2243 | Status = AuthenticatePciDevice (PciIoDevice);\r | |
2244 | //\r | |
2245 | // If authentication fails, skip this device.\r | |
2246 | //\r | |
1436aea4 | 2247 | if (EFI_ERROR (Status)) {\r |
995d8b85 JY |
2248 | if (PciIoDevice->DevicePath != NULL) {\r |
2249 | FreePool (PciIoDevice->DevicePath);\r | |
2250 | }\r | |
1436aea4 | 2251 | \r |
995d8b85 JY |
2252 | FreePool (PciIoDevice);\r |
2253 | return NULL;\r | |
2254 | }\r | |
2255 | \r | |
c095122d RN |
2256 | //\r |
2257 | // Check if device's parent is not Root Bridge\r | |
2258 | //\r | |
2259 | if (PcdGetBool (PcdAriSupport) && !IsRootBridge (Bridge)) {\r | |
d4048391 | 2260 | //\r |
2261 | // Check if the device is an ARI device.\r | |
2262 | //\r | |
2263 | Status = LocatePciExpressCapabilityRegBlock (\r | |
2264 | PciIoDevice,\r | |
2265 | EFI_PCIE_CAPABILITY_ID_ARI,\r | |
2266 | &PciIoDevice->AriCapabilityOffset,\r | |
2267 | NULL\r | |
2268 | );\r | |
2269 | if (!EFI_ERROR (Status)) {\r | |
2270 | //\r | |
2271 | // We need to enable ARI feature before calculate BusReservation,\r | |
2272 | // because FirstVFOffset and VFStride may change after that.\r | |
2273 | //\r | |
2274 | EFI_PCI_IO_PROTOCOL *ParentPciIo;\r | |
2275 | UINT32 Data32;\r | |
9060e3ec | 2276 | \r |
d4048391 | 2277 | //\r |
2278 | // Check if its parent supports ARI forwarding.\r | |
2279 | //\r | |
2280 | ParentPciIo = &Bridge->PciIo;\r | |
2281 | ParentPciIo->Pci.Read (\r | |
1436aea4 MK |
2282 | ParentPciIo,\r |
2283 | EfiPciIoWidthUint32,\r | |
2284 | Bridge->PciExpressCapabilityOffset + EFI_PCIE_CAPABILITY_DEVICE_CAPABILITIES_2_OFFSET,\r | |
2285 | 1,\r | |
2286 | &Data32\r | |
2287 | );\r | |
d4048391 | 2288 | if ((Data32 & EFI_PCIE_CAPABILITY_DEVICE_CAPABILITIES_2_ARI_FORWARDING) != 0) {\r |
2289 | //\r | |
2290 | // ARI forward support in bridge, so enable it.\r | |
2291 | //\r | |
2292 | ParentPciIo->Pci.Read (\r | |
1436aea4 MK |
2293 | ParentPciIo,\r |
2294 | EfiPciIoWidthUint32,\r | |
2295 | Bridge->PciExpressCapabilityOffset + EFI_PCIE_CAPABILITY_DEVICE_CONTROL_2_OFFSET,\r | |
2296 | 1,\r | |
2297 | &Data32\r | |
2298 | );\r | |
d4048391 | 2299 | if ((Data32 & EFI_PCIE_CAPABILITY_DEVICE_CONTROL_2_ARI_FORWARDING) == 0) {\r |
2300 | Data32 |= EFI_PCIE_CAPABILITY_DEVICE_CONTROL_2_ARI_FORWARDING;\r | |
2301 | ParentPciIo->Pci.Write (\r | |
1436aea4 MK |
2302 | ParentPciIo,\r |
2303 | EfiPciIoWidthUint32,\r | |
2304 | Bridge->PciExpressCapabilityOffset + EFI_PCIE_CAPABILITY_DEVICE_CONTROL_2_OFFSET,\r | |
2305 | 1,\r | |
2306 | &Data32\r | |
2307 | );\r | |
d4048391 | 2308 | DEBUG ((\r |
87000d77 | 2309 | DEBUG_INFO,\r |
8db6a82c RN |
2310 | " ARI: forwarding enabled for PPB[%02x:%02x:%02x]\n",\r |
2311 | Bridge->BusNumber,\r | |
2312 | Bridge->DeviceNumber,\r | |
2313 | Bridge->FunctionNumber\r | |
d4048391 | 2314 | ));\r |
2315 | }\r | |
2316 | }\r | |
9060e3ec | 2317 | \r |
87000d77 | 2318 | DEBUG ((DEBUG_INFO, " ARI: CapOffset = 0x%x\n", PciIoDevice->AriCapabilityOffset));\r |
d4048391 | 2319 | }\r |
9060e3ec | 2320 | }\r |
2321 | \r | |
2322 | //\r | |
d4048391 | 2323 | // Initialization for SR-IOV\r |
9060e3ec | 2324 | //\r |
9060e3ec | 2325 | \r |
d4048391 | 2326 | if (PcdGetBool (PcdSrIovSupport)) {\r |
2327 | Status = LocatePciExpressCapabilityRegBlock (\r | |
2328 | PciIoDevice,\r | |
2329 | EFI_PCIE_CAPABILITY_ID_SRIOV,\r | |
2330 | &PciIoDevice->SrIovCapabilityOffset,\r | |
2331 | NULL\r | |
2332 | );\r | |
2333 | if (!EFI_ERROR (Status)) {\r | |
1436aea4 MK |
2334 | UINT32 SupportedPageSize;\r |
2335 | UINT16 VFStride;\r | |
2336 | UINT16 FirstVFOffset;\r | |
2337 | UINT16 Data16;\r | |
2338 | UINT32 PFRid;\r | |
2339 | UINT32 LastVF;\r | |
d4048391 | 2340 | \r |
2341 | //\r | |
2342 | // If the SR-IOV device is an ARI device, then Set ARI Capable Hierarchy for the device.\r | |
2343 | //\r | |
1436aea4 | 2344 | if (PcdGetBool (PcdAriSupport) && (PciIoDevice->AriCapabilityOffset != 0)) {\r |
d4048391 | 2345 | PciIo->Pci.Read (\r |
2346 | PciIo,\r | |
2347 | EfiPciIoWidthUint16,\r | |
2348 | PciIoDevice->SrIovCapabilityOffset + EFI_PCIE_CAPABILITY_ID_SRIOV_CONTROL,\r | |
2349 | 1,\r | |
2350 | &Data16\r | |
2351 | );\r | |
2352 | Data16 |= EFI_PCIE_CAPABILITY_ID_SRIOV_CONTROL_ARI_HIERARCHY;\r | |
2353 | PciIo->Pci.Write (\r | |
2354 | PciIo,\r | |
2355 | EfiPciIoWidthUint16,\r | |
2356 | PciIoDevice->SrIovCapabilityOffset + EFI_PCIE_CAPABILITY_ID_SRIOV_CONTROL,\r | |
2357 | 1,\r | |
2358 | &Data16\r | |
2359 | );\r | |
2360 | }\r | |
9060e3ec | 2361 | \r |
d4048391 | 2362 | //\r |
2363 | // Calculate SystemPageSize\r | |
2364 | //\r | |
9060e3ec | 2365 | \r |
d4048391 | 2366 | PciIo->Pci.Read (\r |
2367 | PciIo,\r | |
2368 | EfiPciIoWidthUint32,\r | |
2369 | PciIoDevice->SrIovCapabilityOffset + EFI_PCIE_CAPABILITY_ID_SRIOV_SUPPORTED_PAGE_SIZE,\r | |
2370 | 1,\r | |
8db6a82c | 2371 | &SupportedPageSize\r |
d4048391 | 2372 | );\r |
8db6a82c | 2373 | PciIoDevice->SystemPageSize = (PcdGet32 (PcdSrIovSystemPageSize) & SupportedPageSize);\r |
d4048391 | 2374 | ASSERT (PciIoDevice->SystemPageSize != 0);\r |
2375 | \r | |
2376 | PciIo->Pci.Write (\r | |
2377 | PciIo,\r | |
2378 | EfiPciIoWidthUint32,\r | |
2379 | PciIoDevice->SrIovCapabilityOffset + EFI_PCIE_CAPABILITY_ID_SRIOV_SYSTEM_PAGE_SIZE,\r | |
2380 | 1,\r | |
2381 | &PciIoDevice->SystemPageSize\r | |
2382 | );\r | |
d4048391 | 2383 | //\r |
2384 | // Adjust SystemPageSize for Alignment usage later\r | |
2385 | //\r | |
2386 | PciIoDevice->SystemPageSize <<= 12;\r | |
9060e3ec | 2387 | \r |
d4048391 | 2388 | //\r |
2389 | // Calculate BusReservation for PCI IOV\r | |
2390 | //\r | |
9060e3ec | 2391 | \r |
d4048391 | 2392 | //\r |
2393 | // Read First FirstVFOffset, InitialVFs, and VFStride\r | |
2394 | //\r | |
2395 | PciIo->Pci.Read (\r | |
2396 | PciIo,\r | |
2397 | EfiPciIoWidthUint16,\r | |
2398 | PciIoDevice->SrIovCapabilityOffset + EFI_PCIE_CAPABILITY_ID_SRIOV_FIRSTVF,\r | |
2399 | 1,\r | |
2400 | &FirstVFOffset\r | |
2401 | );\r | |
d4048391 | 2402 | PciIo->Pci.Read (\r |
2403 | PciIo,\r | |
2404 | EfiPciIoWidthUint16,\r | |
2405 | PciIoDevice->SrIovCapabilityOffset + EFI_PCIE_CAPABILITY_ID_SRIOV_INITIALVFS,\r | |
2406 | 1,\r | |
2407 | &PciIoDevice->InitialVFs\r | |
2408 | );\r | |
d4048391 | 2409 | PciIo->Pci.Read (\r |
2410 | PciIo,\r | |
2411 | EfiPciIoWidthUint16,\r | |
2412 | PciIoDevice->SrIovCapabilityOffset + EFI_PCIE_CAPABILITY_ID_SRIOV_VFSTRIDE,\r | |
2413 | 1,\r | |
2414 | &VFStride\r | |
2415 | );\r | |
d4048391 | 2416 | //\r |
2417 | // Calculate LastVF\r | |
2418 | //\r | |
1436aea4 | 2419 | PFRid = EFI_PCI_RID (Bus, Device, Func);\r |
d4048391 | 2420 | LastVF = PFRid + FirstVFOffset + (PciIoDevice->InitialVFs - 1) * VFStride;\r |
9060e3ec | 2421 | \r |
d4048391 | 2422 | //\r |
2423 | // Calculate ReservedBusNum for this PF\r | |
2424 | //\r | |
2425 | PciIoDevice->ReservedBusNum = (UINT16)(EFI_PCI_BUS_OF_RID (LastVF) - Bus + 1);\r | |
8db6a82c | 2426 | \r |
d4048391 | 2427 | DEBUG ((\r |
87000d77 | 2428 | DEBUG_INFO,\r |
8db6a82c | 2429 | " SR-IOV: SupportedPageSize = 0x%x; SystemPageSize = 0x%x; FirstVFOffset = 0x%x;\n",\r |
1436aea4 MK |
2430 | SupportedPageSize,\r |
2431 | PciIoDevice->SystemPageSize >> 12,\r | |
2432 | FirstVFOffset\r | |
d4048391 | 2433 | ));\r |
d4048391 | 2434 | DEBUG ((\r |
87000d77 | 2435 | DEBUG_INFO,\r |
8db6a82c | 2436 | " InitialVFs = 0x%x; ReservedBusNum = 0x%x; CapOffset = 0x%x\n",\r |
1436aea4 MK |
2437 | PciIoDevice->InitialVFs,\r |
2438 | PciIoDevice->ReservedBusNum,\r | |
2439 | PciIoDevice->SrIovCapabilityOffset\r | |
d4048391 | 2440 | ));\r |
2441 | }\r | |
9060e3ec | 2442 | }\r |
2443 | \r | |
d4048391 | 2444 | if (PcdGetBool (PcdMrIovSupport)) {\r |
2445 | Status = LocatePciExpressCapabilityRegBlock (\r | |
2446 | PciIoDevice,\r | |
2447 | EFI_PCIE_CAPABILITY_ID_MRIOV,\r | |
2448 | &PciIoDevice->MrIovCapabilityOffset,\r | |
2449 | NULL\r | |
2450 | );\r | |
2451 | if (!EFI_ERROR (Status)) {\r | |
87000d77 | 2452 | DEBUG ((DEBUG_INFO, " MR-IOV: CapOffset = 0x%x\n", PciIoDevice->MrIovCapabilityOffset));\r |
d4048391 | 2453 | }\r |
2454 | }\r | |
9060e3ec | 2455 | \r |
0785c619 LH |
2456 | PciIoDevice->ResizableBarOffset = 0;\r |
2457 | if (PcdGetBool (PcdPcieResizableBarSupport)) {\r | |
2458 | Status = LocatePciExpressCapabilityRegBlock (\r | |
2459 | PciIoDevice,\r | |
2460 | PCI_EXPRESS_EXTENDED_CAPABILITY_RESIZABLE_BAR_ID,\r | |
2461 | &PciIoDevice->ResizableBarOffset,\r | |
2462 | NULL\r | |
2463 | );\r | |
2464 | if (!EFI_ERROR (Status)) {\r | |
1436aea4 MK |
2465 | PCI_EXPRESS_EXTENDED_CAPABILITIES_RESIZABLE_BAR_CONTROL ResizableBarControl;\r |
2466 | UINT32 Offset;\r | |
0785c619 | 2467 | Offset = PciIoDevice->ResizableBarOffset + sizeof (PCI_EXPRESS_EXTENDED_CAPABILITIES_HEADER)\r |
1436aea4 | 2468 | + sizeof (PCI_EXPRESS_EXTENDED_CAPABILITIES_RESIZABLE_BAR_CAPABILITY),\r |
0785c619 | 2469 | PciIo->Pci.Read (\r |
1436aea4 MK |
2470 | PciIo,\r |
2471 | EfiPciIoWidthUint8,\r | |
2472 | Offset,\r | |
2473 | sizeof (PCI_EXPRESS_EXTENDED_CAPABILITIES_RESIZABLE_BAR_CONTROL),\r | |
2474 | &ResizableBarControl\r | |
2475 | );\r | |
0785c619 LH |
2476 | PciIoDevice->ResizableBarNumber = ResizableBarControl.Bits.ResizableBarNumber;\r |
2477 | PciProgramResizableBar (PciIoDevice, PciResizableBarMax);\r | |
2478 | }\r | |
2479 | }\r | |
2480 | \r | |
9060e3ec | 2481 | //\r |
2482 | // Initialize the reserved resource list\r | |
2483 | //\r | |
2484 | InitializeListHead (&PciIoDevice->ReservedResourceList);\r | |
2485 | \r | |
2486 | //\r | |
2487 | // Initialize the driver list\r | |
2488 | //\r | |
2489 | InitializeListHead (&PciIoDevice->OptionRomDriverList);\r | |
2490 | \r | |
2491 | //\r | |
2492 | // Initialize the child list\r | |
2493 | //\r | |
2494 | InitializeListHead (&PciIoDevice->ChildList);\r | |
2495 | \r | |
2496 | return PciIoDevice;\r | |
2497 | }\r | |
2498 | \r | |
2499 | /**\r | |
2500 | This routine is used to enumerate entire pci bus system\r | |
2501 | in a given platform.\r | |
2502 | \r | |
2503 | It is only called on the second start on the same Root Bridge.\r | |
2504 | \r | |
2505 | @param Controller Parent bridge handler.\r | |
2506 | \r | |
2507 | @retval EFI_SUCCESS PCI enumeration finished successfully.\r | |
2508 | @retval other Some error occurred when enumerating the pci bus system.\r | |
2509 | \r | |
2510 | **/\r | |
2511 | EFI_STATUS\r | |
2512 | PciEnumeratorLight (\r | |
1436aea4 | 2513 | IN EFI_HANDLE Controller\r |
9060e3ec | 2514 | )\r |
2515 | {\r | |
1436aea4 MK |
2516 | EFI_STATUS Status;\r |
2517 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;\r | |
2518 | PCI_IO_DEVICE *RootBridgeDev;\r | |
2519 | UINT16 MinBus;\r | |
2520 | UINT16 MaxBus;\r | |
2521 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;\r | |
9060e3ec | 2522 | \r |
2523 | MinBus = 0;\r | |
2524 | MaxBus = PCI_MAX_BUS;\r | |
2525 | Descriptors = NULL;\r | |
2526 | \r | |
2527 | //\r | |
2528 | // If this root bridge has been already enumerated, then return successfully\r | |
2529 | //\r | |
2530 | if (GetRootBridgeByHandle (Controller) != NULL) {\r | |
2531 | return EFI_SUCCESS;\r | |
2532 | }\r | |
2533 | \r | |
2534 | //\r | |
2535 | // Open pci root bridge io protocol\r | |
2536 | //\r | |
2537 | Status = gBS->OpenProtocol (\r | |
2538 | Controller,\r | |
2539 | &gEfiPciRootBridgeIoProtocolGuid,\r | |
1436aea4 | 2540 | (VOID **)&PciRootBridgeIo,\r |
9060e3ec | 2541 | gPciBusDriverBinding.DriverBindingHandle,\r |
2542 | Controller,\r | |
2543 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
2544 | );\r | |
1436aea4 | 2545 | if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {\r |
9060e3ec | 2546 | return Status;\r |
2547 | }\r | |
2548 | \r | |
1436aea4 | 2549 | Status = PciRootBridgeIo->Configuration (PciRootBridgeIo, (VOID **)&Descriptors);\r |
9060e3ec | 2550 | \r |
2551 | if (EFI_ERROR (Status)) {\r | |
2552 | return Status;\r | |
2553 | }\r | |
2554 | \r | |
2555 | while (PciGetBusRange (&Descriptors, &MinBus, &MaxBus, NULL) == EFI_SUCCESS) {\r | |
9060e3ec | 2556 | //\r |
2557 | // Create a device node for root bridge device with a NULL host bridge controller handle\r | |
2558 | //\r | |
2559 | RootBridgeDev = CreateRootBridge (Controller);\r | |
2560 | \r | |
2561 | if (RootBridgeDev == NULL) {\r | |
2562 | Descriptors++;\r | |
2563 | continue;\r | |
2564 | }\r | |
2565 | \r | |
2566 | //\r | |
fcdfcdbf | 2567 | // Record the root bridge-io protocol\r |
9060e3ec | 2568 | //\r |
2569 | RootBridgeDev->PciRootBridgeIo = PciRootBridgeIo;\r | |
2570 | \r | |
2571 | Status = PciPciDeviceInfoCollector (\r | |
2572 | RootBridgeDev,\r | |
1436aea4 | 2573 | (UINT8)MinBus\r |
9060e3ec | 2574 | );\r |
2575 | \r | |
2576 | if (!EFI_ERROR (Status)) {\r | |
9060e3ec | 2577 | //\r |
2578 | // Remove those PCI devices which are rejected when full enumeration\r | |
2579 | //\r | |
2580 | RemoveRejectedPciDevices (RootBridgeDev->Handle, RootBridgeDev);\r | |
2581 | \r | |
2582 | //\r | |
2583 | // Process option rom light\r | |
2584 | //\r | |
2585 | ProcessOptionRomLight (RootBridgeDev);\r | |
2586 | \r | |
2587 | //\r | |
2588 | // Determine attributes for all devices under this root bridge\r | |
2589 | //\r | |
2590 | DetermineDeviceAttribute (RootBridgeDev);\r | |
2591 | \r | |
2592 | //\r | |
2593 | // If successfully, insert the node into device pool\r | |
2594 | //\r | |
2595 | InsertRootBridge (RootBridgeDev);\r | |
2596 | } else {\r | |
9060e3ec | 2597 | //\r |
fcdfcdbf | 2598 | // If unsuccessfully, destroy the entire node\r |
9060e3ec | 2599 | //\r |
2600 | DestroyRootBridge (RootBridgeDev);\r | |
2601 | }\r | |
2602 | \r | |
2603 | Descriptors++;\r | |
2604 | }\r | |
2605 | \r | |
2606 | return EFI_SUCCESS;\r | |
2607 | }\r | |
2608 | \r | |
2609 | /**\r | |
2610 | Get bus range from PCI resource descriptor list.\r | |
2611 | \r | |
2612 | @param Descriptors A pointer to the address space descriptor.\r | |
2613 | @param MinBus The min bus returned.\r | |
2614 | @param MaxBus The max bus returned.\r | |
2615 | @param BusRange The bus range returned.\r | |
2616 | \r | |
2617 | @retval EFI_SUCCESS Successfully got bus range.\r | |
2618 | @retval EFI_NOT_FOUND Can not find the specific bus.\r | |
2619 | \r | |
2620 | **/\r | |
2621 | EFI_STATUS\r | |
2622 | PciGetBusRange (\r | |
2623 | IN EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR **Descriptors,\r | |
2624 | OUT UINT16 *MinBus,\r | |
2625 | OUT UINT16 *MaxBus,\r | |
2626 | OUT UINT16 *BusRange\r | |
2627 | )\r | |
2628 | {\r | |
2629 | while ((*Descriptors)->Desc != ACPI_END_TAG_DESCRIPTOR) {\r | |
2630 | if ((*Descriptors)->ResType == ACPI_ADDRESS_SPACE_TYPE_BUS) {\r | |
2631 | if (MinBus != NULL) {\r | |
1436aea4 | 2632 | *MinBus = (UINT16)(*Descriptors)->AddrRangeMin;\r |
9060e3ec | 2633 | }\r |
2634 | \r | |
2635 | if (MaxBus != NULL) {\r | |
1436aea4 | 2636 | *MaxBus = (UINT16)(*Descriptors)->AddrRangeMax;\r |
9060e3ec | 2637 | }\r |
2638 | \r | |
2639 | if (BusRange != NULL) {\r | |
1436aea4 | 2640 | *BusRange = (UINT16)(*Descriptors)->AddrLen;\r |
9060e3ec | 2641 | }\r |
2642 | \r | |
2643 | return EFI_SUCCESS;\r | |
2644 | }\r | |
2645 | \r | |
2646 | (*Descriptors)++;\r | |
2647 | }\r | |
2648 | \r | |
2649 | return EFI_NOT_FOUND;\r | |
2650 | }\r | |
2651 | \r | |
2652 | /**\r | |
2653 | This routine can be used to start the root bridge.\r | |
2654 | \r | |
2655 | @param RootBridgeDev Pci device instance.\r | |
2656 | \r | |
2657 | @retval EFI_SUCCESS This device started.\r | |
2658 | @retval other Failed to get PCI Root Bridge I/O protocol.\r | |
2659 | \r | |
2660 | **/\r | |
2661 | EFI_STATUS\r | |
2662 | StartManagingRootBridge (\r | |
1436aea4 | 2663 | IN PCI_IO_DEVICE *RootBridgeDev\r |
9060e3ec | 2664 | )\r |
2665 | {\r | |
1436aea4 MK |
2666 | EFI_HANDLE RootBridgeHandle;\r |
2667 | EFI_STATUS Status;\r | |
2668 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;\r | |
9060e3ec | 2669 | \r |
2670 | //\r | |
2671 | // Get the root bridge handle\r | |
2672 | //\r | |
2673 | RootBridgeHandle = RootBridgeDev->Handle;\r | |
2674 | PciRootBridgeIo = NULL;\r | |
2675 | \r | |
2676 | //\r | |
2677 | // Get the pci root bridge io protocol\r | |
2678 | //\r | |
2679 | Status = gBS->OpenProtocol (\r | |
2680 | RootBridgeHandle,\r | |
2681 | &gEfiPciRootBridgeIoProtocolGuid,\r | |
1436aea4 | 2682 | (VOID **)&PciRootBridgeIo,\r |
9060e3ec | 2683 | gPciBusDriverBinding.DriverBindingHandle,\r |
2684 | RootBridgeHandle,\r | |
2685 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
2686 | );\r | |
2687 | \r | |
1436aea4 | 2688 | if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {\r |
9060e3ec | 2689 | return Status;\r |
2690 | }\r | |
2691 | \r | |
2692 | //\r | |
2693 | // Store the PciRootBridgeIo protocol into root bridge private data\r | |
2694 | //\r | |
2695 | RootBridgeDev->PciRootBridgeIo = PciRootBridgeIo;\r | |
2696 | \r | |
2697 | return EFI_SUCCESS;\r | |
9060e3ec | 2698 | }\r |
2699 | \r | |
2700 | /**\r | |
2701 | This routine can be used to check whether a PCI device should be rejected when light enumeration.\r | |
2702 | \r | |
2703 | @param PciIoDevice Pci device instance.\r | |
2704 | \r | |
2705 | @retval TRUE This device should be rejected.\r | |
2706 | @retval FALSE This device shouldn't be rejected.\r | |
2707 | \r | |
2708 | **/\r | |
2709 | BOOLEAN\r | |
2710 | IsPciDeviceRejected (\r | |
1436aea4 | 2711 | IN PCI_IO_DEVICE *PciIoDevice\r |
9060e3ec | 2712 | )\r |
2713 | {\r | |
2714 | EFI_STATUS Status;\r | |
2715 | UINT32 TestValue;\r | |
2716 | UINT32 OldValue;\r | |
2717 | UINT32 Mask;\r | |
2718 | UINT8 BarOffset;\r | |
2719 | \r | |
2720 | //\r | |
2721 | // PPB should be skip!\r | |
2722 | //\r | |
2723 | if (IS_PCI_BRIDGE (&PciIoDevice->Pci)) {\r | |
2724 | return FALSE;\r | |
2725 | }\r | |
2726 | \r | |
2727 | if (IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {\r | |
2728 | //\r | |
2729 | // Only test base registers for P2C\r | |
2730 | //\r | |
2731 | for (BarOffset = 0x1C; BarOffset <= 0x38; BarOffset += 2 * sizeof (UINT32)) {\r | |
1436aea4 MK |
2732 | Mask = (BarOffset < 0x2C) ? 0xFFFFF000 : 0xFFFFFFFC;\r |
2733 | Status = BarExisted (PciIoDevice, BarOffset, &TestValue, &OldValue);\r | |
9060e3ec | 2734 | if (EFI_ERROR (Status)) {\r |
2735 | continue;\r | |
2736 | }\r | |
2737 | \r | |
2738 | TestValue = TestValue & Mask;\r | |
2739 | if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {\r | |
2740 | //\r | |
2741 | // The bar isn't programed, so it should be rejected\r | |
2742 | //\r | |
2743 | return TRUE;\r | |
2744 | }\r | |
2745 | }\r | |
2746 | \r | |
2747 | return FALSE;\r | |
2748 | }\r | |
2749 | \r | |
2750 | for (BarOffset = 0x14; BarOffset <= 0x24; BarOffset += sizeof (UINT32)) {\r | |
2751 | //\r | |
2752 | // Test PCI devices\r | |
2753 | //\r | |
2754 | Status = BarExisted (PciIoDevice, BarOffset, &TestValue, &OldValue);\r | |
2755 | if (EFI_ERROR (Status)) {\r | |
2756 | continue;\r | |
2757 | }\r | |
2758 | \r | |
2759 | if ((TestValue & 0x01) != 0) {\r | |
9060e3ec | 2760 | //\r |
2761 | // IO Bar\r | |
2762 | //\r | |
2763 | Mask = 0xFFFFFFFC;\r | |
2764 | TestValue = TestValue & Mask;\r | |
2765 | if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {\r | |
2766 | return TRUE;\r | |
2767 | }\r | |
9060e3ec | 2768 | } else {\r |
9060e3ec | 2769 | //\r |
2770 | // Mem Bar\r | |
2771 | //\r | |
2772 | Mask = 0xFFFFFFF0;\r | |
2773 | TestValue = TestValue & Mask;\r | |
2774 | \r | |
2775 | if ((TestValue & 0x07) == 0x04) {\r | |
9060e3ec | 2776 | //\r |
2777 | // Mem64 or PMem64\r | |
2778 | //\r | |
2779 | BarOffset += sizeof (UINT32);\r | |
2780 | if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {\r | |
9060e3ec | 2781 | //\r |
2782 | // Test its high 32-Bit BAR\r | |
2783 | //\r | |
2784 | Status = BarExisted (PciIoDevice, BarOffset, &TestValue, &OldValue);\r | |
2785 | if (TestValue == OldValue) {\r | |
2786 | return TRUE;\r | |
2787 | }\r | |
2788 | }\r | |
9060e3ec | 2789 | } else {\r |
9060e3ec | 2790 | //\r |
2791 | // Mem32 or PMem32\r | |
2792 | //\r | |
2793 | if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {\r | |
2794 | return TRUE;\r | |
2795 | }\r | |
2796 | }\r | |
2797 | }\r | |
2798 | }\r | |
2799 | \r | |
2800 | return FALSE;\r | |
2801 | }\r | |
2802 | \r | |
2803 | /**\r | |
2804 | Reset all bus number from specific bridge.\r | |
2805 | \r | |
2806 | @param Bridge Parent specific bridge.\r | |
2807 | @param StartBusNumber Start bus number.\r | |
2808 | \r | |
2809 | **/\r | |
2810 | VOID\r | |
2811 | ResetAllPpbBusNumber (\r | |
1436aea4 MK |
2812 | IN PCI_IO_DEVICE *Bridge,\r |
2813 | IN UINT8 StartBusNumber\r | |
9060e3ec | 2814 | )\r |
2815 | {\r | |
1436aea4 MK |
2816 | EFI_STATUS Status;\r |
2817 | PCI_TYPE00 Pci;\r | |
2818 | UINT8 Device;\r | |
2819 | UINT32 Register;\r | |
2820 | UINT8 Func;\r | |
2821 | UINT64 Address;\r | |
2822 | UINT8 SecondaryBus;\r | |
2823 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;\r | |
9060e3ec | 2824 | \r |
2825 | PciRootBridgeIo = Bridge->PciRootBridgeIo;\r | |
2826 | \r | |
2827 | for (Device = 0; Device <= PCI_MAX_DEVICE; Device++) {\r | |
2828 | for (Func = 0; Func <= PCI_MAX_FUNC; Func++) {\r | |
9060e3ec | 2829 | //\r |
2830 | // Check to see whether a pci device is present\r | |
2831 | //\r | |
2832 | Status = PciDevicePresent (\r | |
2833 | PciRootBridgeIo,\r | |
2834 | &Pci,\r | |
2835 | StartBusNumber,\r | |
2836 | Device,\r | |
2837 | Func\r | |
2838 | );\r | |
2839 | \r | |
1436aea4 | 2840 | if (EFI_ERROR (Status) && (Func == 0)) {\r |
25a26646 JS |
2841 | //\r |
2842 | // go to next device if there is no Function 0\r | |
2843 | //\r | |
2844 | break;\r | |
2845 | }\r | |
2846 | \r | |
9060e3ec | 2847 | if (!EFI_ERROR (Status) && (IS_PCI_BRIDGE (&Pci))) {\r |
1436aea4 MK |
2848 | Register = 0;\r |
2849 | Address = EFI_PCI_ADDRESS (StartBusNumber, Device, Func, 0x18);\r | |
2850 | Status = PciRootBridgeIo->Pci.Read (\r | |
2851 | PciRootBridgeIo,\r | |
2852 | EfiPciWidthUint32,\r | |
2853 | Address,\r | |
2854 | 1,\r | |
2855 | &Register\r | |
2856 | );\r | |
9060e3ec | 2857 | SecondaryBus = (UINT8)(Register >> 8);\r |
2858 | \r | |
2859 | if (SecondaryBus != 0) {\r | |
2860 | ResetAllPpbBusNumber (Bridge, SecondaryBus);\r | |
2861 | }\r | |
2862 | \r | |
2863 | //\r | |
2864 | // Reset register 18h, 19h, 1Ah on PCI Bridge\r | |
2865 | //\r | |
2866 | Register &= 0xFF000000;\r | |
1436aea4 MK |
2867 | Status = PciRootBridgeIo->Pci.Write (\r |
2868 | PciRootBridgeIo,\r | |
2869 | EfiPciWidthUint32,\r | |
2870 | Address,\r | |
2871 | 1,\r | |
2872 | &Register\r | |
2873 | );\r | |
9060e3ec | 2874 | }\r |
2875 | \r | |
1436aea4 | 2876 | if ((Func == 0) && !IS_PCI_MULTI_FUNC (&Pci)) {\r |
9060e3ec | 2877 | //\r |
2878 | // Skip sub functions, this is not a multi function device\r | |
2879 | //\r | |
2880 | Func = PCI_MAX_FUNC;\r | |
2881 | }\r | |
2882 | }\r | |
2883 | }\r | |
2884 | }\r |