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e35a746c PG |
1 | /** @file\r |
2 | SSDT Pcie Table Generator.\r | |
3 | \r | |
5816bd3e | 4 | Copyright (c) 2021 - 2022, Arm Limited. All rights reserved.<BR>\r |
e35a746c PG |
5 | \r |
6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
7 | \r | |
8 | @par Reference(s):\r | |
9 | - PCI Firmware Specification - Revision 3.0\r | |
10 | - ACPI 6.4 specification:\r | |
11 | - s6.2.13 "_PRT (PCI Routing Table)"\r | |
12 | - s6.1.1 "_ADR (Address)"\r | |
13 | - linux kernel code\r | |
14 | - Arm Base Boot Requirements v1.0\r | |
5816bd3e | 15 | - Arm Base System Architecture v1.0\r |
e35a746c PG |
16 | **/\r |
17 | \r | |
18 | #include <Library/AcpiLib.h>\r | |
19 | #include <Library/BaseLib.h>\r | |
20 | #include <Library/BaseMemoryLib.h>\r | |
21 | #include <Library/DebugLib.h>\r | |
22 | #include <Library/MemoryAllocationLib.h>\r | |
23 | #include <Protocol/AcpiTable.h>\r | |
24 | \r | |
25 | // Module specific include files.\r | |
26 | #include <AcpiTableGenerator.h>\r | |
27 | #include <ConfigurationManagerObject.h>\r | |
28 | #include <ConfigurationManagerHelper.h>\r | |
29 | #include <Library/AcpiHelperLib.h>\r | |
30 | #include <Library/TableHelperLib.h>\r | |
31 | #include <Library/AmlLib/AmlLib.h>\r | |
32 | #include <Protocol/ConfigurationManagerProtocol.h>\r | |
33 | \r | |
34 | #include "SsdtPcieGenerator.h"\r | |
35 | \r | |
36 | /** ARM standard SSDT Pcie Table Generator.\r | |
37 | \r | |
38 | Requirements:\r | |
39 | The following Configuration Manager Object(s) are required by\r | |
40 | this Generator:\r | |
41 | - EArmObjCmRef\r | |
42 | - EArmObjPciConfigSpaceInfo\r | |
43 | - EArmObjPciAddressMapInfo\r | |
44 | - EArmObjPciInterruptMapInfo\r | |
45 | */\r | |
46 | \r | |
47 | /** This macro expands to a function that retrieves the cross-CM-object-\r | |
48 | reference information from the Configuration Manager.\r | |
49 | */\r | |
50 | GET_OBJECT_LIST (\r | |
51 | EObjNameSpaceArm,\r | |
52 | EArmObjCmRef,\r | |
53 | CM_ARM_OBJ_REF\r | |
54 | );\r | |
55 | \r | |
56 | /** This macro expands to a function that retrieves the Pci\r | |
57 | Configuration Space Information from the Configuration Manager.\r | |
58 | */\r | |
59 | GET_OBJECT_LIST (\r | |
60 | EObjNameSpaceArm,\r | |
61 | EArmObjPciConfigSpaceInfo,\r | |
62 | CM_ARM_PCI_CONFIG_SPACE_INFO\r | |
63 | );\r | |
64 | \r | |
65 | /** This macro expands to a function that retrieves the Pci\r | |
66 | Address Mapping Information from the Configuration Manager.\r | |
67 | */\r | |
68 | GET_OBJECT_LIST (\r | |
69 | EObjNameSpaceArm,\r | |
70 | EArmObjPciAddressMapInfo,\r | |
71 | CM_ARM_PCI_ADDRESS_MAP_INFO\r | |
72 | );\r | |
73 | \r | |
74 | /** This macro expands to a function that retrieves the Pci\r | |
75 | Interrupt Mapping Information from the Configuration Manager.\r | |
76 | */\r | |
77 | GET_OBJECT_LIST (\r | |
78 | EObjNameSpaceArm,\r | |
79 | EArmObjPciInterruptMapInfo,\r | |
80 | CM_ARM_PCI_INTERRUPT_MAP_INFO\r | |
81 | );\r | |
82 | \r | |
83 | /** Initialize the MappingTable.\r | |
84 | \r | |
85 | @param [in] MappingTable The mapping table structure.\r | |
86 | @param [in] Count Number of entries to allocate in the\r | |
87 | MappingTable.\r | |
88 | \r | |
89 | @retval EFI_SUCCESS Success.\r | |
90 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
91 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
92 | **/\r | |
93 | STATIC\r | |
94 | EFI_STATUS\r | |
95 | EFIAPI\r | |
96 | MappingTableInitialize (\r | |
97 | IN MAPPING_TABLE *MappingTable,\r | |
98 | IN UINT32 Count\r | |
99 | )\r | |
100 | {\r | |
101 | UINT32 *Table;\r | |
102 | \r | |
103 | if ((MappingTable == NULL) ||\r | |
104 | (Count == 0))\r | |
105 | {\r | |
106 | ASSERT (0);\r | |
107 | return EFI_INVALID_PARAMETER;\r | |
108 | }\r | |
109 | \r | |
110 | Table = AllocateZeroPool (sizeof (*Table) * Count);\r | |
111 | if (Table == NULL) {\r | |
112 | ASSERT (0);\r | |
113 | return EFI_OUT_OF_RESOURCES;\r | |
114 | }\r | |
115 | \r | |
116 | MappingTable->Table = Table;\r | |
117 | MappingTable->LastIndex = 0;\r | |
118 | MappingTable->MaxIndex = Count;\r | |
119 | \r | |
120 | return EFI_SUCCESS;\r | |
121 | }\r | |
122 | \r | |
123 | /** Free the MappingTable.\r | |
124 | \r | |
125 | @param [in, out] MappingTable The mapping table structure.\r | |
126 | **/\r | |
127 | STATIC\r | |
128 | VOID\r | |
129 | EFIAPI\r | |
130 | MappingTableFree (\r | |
131 | IN OUT MAPPING_TABLE *MappingTable\r | |
132 | )\r | |
133 | {\r | |
134 | ASSERT (MappingTable != NULL);\r | |
135 | ASSERT (MappingTable->Table != NULL);\r | |
136 | \r | |
137 | if (MappingTable->Table != NULL) {\r | |
138 | FreePool (MappingTable->Table);\r | |
139 | }\r | |
140 | }\r | |
141 | \r | |
142 | /** Add a new entry to the MappingTable and return its index.\r | |
143 | \r | |
144 | If an entry with [Integer] is already available in the table,\r | |
145 | return its index without adding a new entry.\r | |
146 | \r | |
147 | @param [in] MappingTable The mapping table structure.\r | |
148 | @param [in] Integer New Integer entry to add.\r | |
149 | \r | |
150 | @retval The index of the Integer entry in the MappingTable.\r | |
151 | **/\r | |
152 | STATIC\r | |
153 | UINT32\r | |
154 | EFIAPI\r | |
155 | MappingTableAdd (\r | |
156 | IN MAPPING_TABLE *MappingTable,\r | |
157 | IN UINT32 Integer\r | |
158 | )\r | |
159 | {\r | |
160 | UINT32 *Table;\r | |
161 | UINT32 Index;\r | |
162 | UINT32 LastIndex;\r | |
163 | \r | |
164 | ASSERT (MappingTable != NULL);\r | |
165 | ASSERT (MappingTable->Table != NULL);\r | |
166 | \r | |
167 | Table = MappingTable->Table;\r | |
168 | LastIndex = MappingTable->LastIndex;\r | |
169 | \r | |
170 | // Search if there is already an entry with this Integer.\r | |
171 | for (Index = 0; Index < LastIndex; Index++) {\r | |
172 | if (Table[Index] == Integer) {\r | |
173 | return Index;\r | |
174 | }\r | |
175 | }\r | |
176 | \r | |
177 | ASSERT (LastIndex < MappingTable->MaxIndex);\r | |
178 | \r | |
179 | // If no, create a new entry.\r | |
180 | Table[LastIndex] = Integer;\r | |
181 | \r | |
182 | return MappingTable->LastIndex++;\r | |
183 | }\r | |
184 | \r | |
185 | /** Generate required Pci device information.\r | |
186 | \r | |
187 | ASL code:\r | |
188 | Name (_UID, <Uid>) // Uid of the Pci device\r | |
189 | Name (_HID, EISAID ("PNP0A08")) // PCI Express Root Bridge\r | |
190 | Name (_CID, EISAID ("PNP0A03")) // Compatible PCI Root Bridge\r | |
191 | Name (_SEG, <Pci segment group>) // PCI Segment Group number\r | |
192 | Name (_BBN, <Bus number>) // PCI Base Bus Number\r | |
193 | Name (_CCA, 1) // Initially mark the PCI coherent\r | |
194 | \r | |
195 | @param [in] PciInfo Pci device information.\r | |
196 | @param [in] Uid Unique Id of the Pci device.\r | |
197 | @param [in, out] PciNode Pci node to amend.\r | |
198 | \r | |
199 | @retval EFI_SUCCESS Success.\r | |
200 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
201 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
202 | **/\r | |
203 | STATIC\r | |
204 | EFI_STATUS\r | |
205 | EFIAPI\r | |
206 | GeneratePciDeviceInfo (\r | |
207 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
208 | IN UINT32 Uid,\r | |
209 | IN OUT AML_OBJECT_NODE_HANDLE PciNode\r | |
210 | )\r | |
211 | {\r | |
212 | EFI_STATUS Status;\r | |
213 | UINT32 EisaId;\r | |
214 | \r | |
215 | ASSERT (PciInfo != NULL);\r | |
216 | ASSERT (PciNode != NULL);\r | |
217 | \r | |
218 | // ASL: Name (_UID, <Uid>)\r | |
219 | Status = AmlCodeGenNameInteger ("_UID", Uid, PciNode, NULL);\r | |
220 | if (EFI_ERROR (Status)) {\r | |
221 | ASSERT (0);\r | |
222 | return Status;\r | |
223 | }\r | |
224 | \r | |
225 | // ASL: Name (_HID, EISAID ("PNP0A08"))\r | |
226 | Status = AmlGetEisaIdFromString ("PNP0A08", &EisaId);\r | |
227 | if (EFI_ERROR (Status)) {\r | |
228 | ASSERT (0);\r | |
229 | return Status;\r | |
230 | }\r | |
231 | \r | |
232 | Status = AmlCodeGenNameInteger ("_HID", EisaId, PciNode, NULL);\r | |
233 | if (EFI_ERROR (Status)) {\r | |
234 | ASSERT (0);\r | |
235 | return Status;\r | |
236 | }\r | |
237 | \r | |
238 | // ASL: Name (_CID, EISAID ("PNP0A03"))\r | |
239 | Status = AmlGetEisaIdFromString ("PNP0A03", &EisaId);\r | |
240 | if (EFI_ERROR (Status)) {\r | |
241 | ASSERT (0);\r | |
242 | return Status;\r | |
243 | }\r | |
244 | \r | |
245 | Status = AmlCodeGenNameInteger ("_CID", EisaId, PciNode, NULL);\r | |
246 | if (EFI_ERROR (Status)) {\r | |
247 | ASSERT (0);\r | |
248 | return Status;\r | |
249 | }\r | |
250 | \r | |
251 | // ASL: Name (_SEG, <Pci segment group>)\r | |
252 | Status = AmlCodeGenNameInteger (\r | |
253 | "_SEG",\r | |
254 | PciInfo->PciSegmentGroupNumber,\r | |
255 | PciNode,\r | |
256 | NULL\r | |
257 | );\r | |
258 | if (EFI_ERROR (Status)) {\r | |
259 | ASSERT (0);\r | |
260 | return Status;\r | |
261 | }\r | |
262 | \r | |
263 | // ASL: Name (_BBN, <Bus number>)\r | |
264 | Status = AmlCodeGenNameInteger (\r | |
265 | "_BBN",\r | |
266 | PciInfo->StartBusNumber,\r | |
267 | PciNode,\r | |
268 | NULL\r | |
269 | );\r | |
270 | if (EFI_ERROR (Status)) {\r | |
271 | ASSERT (0);\r | |
272 | return Status;\r | |
273 | }\r | |
274 | \r | |
275 | // ASL: Name (_CCA, 1)\r | |
276 | // Must be aligned with the IORT CCA property in\r | |
277 | // "Table 14 Memory access properties"\r | |
278 | Status = AmlCodeGenNameInteger ("_CCA", 1, PciNode, NULL);\r | |
279 | ASSERT_EFI_ERROR (Status);\r | |
280 | return Status;\r | |
281 | }\r | |
282 | \r | |
e35a746c PG |
283 | /** Generate Pci slots devices.\r |
284 | \r | |
285 | PCI Firmware Specification - Revision 3.3,\r | |
286 | s4.8 "Generic ACPI PCI Slot Description" requests to describe the PCI slot\r | |
287 | used. It should be possible to enumerate them, but this is additional\r | |
288 | information.\r | |
289 | \r | |
290 | @param [in] MappingTable The mapping table structure.\r | |
291 | @param [in, out] PciNode Pci node to amend.\r | |
292 | \r | |
293 | @retval EFI_SUCCESS Success.\r | |
294 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
295 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
296 | **/\r | |
297 | STATIC\r | |
298 | EFI_STATUS\r | |
299 | EFIAPI\r | |
300 | GeneratePciSlots (\r | |
301 | IN CONST MAPPING_TABLE *MappingTable,\r | |
302 | IN OUT AML_OBJECT_NODE_HANDLE PciNode\r | |
303 | )\r | |
304 | {\r | |
305 | EFI_STATUS Status;\r | |
306 | UINT32 Index;\r | |
307 | UINT32 LastIndex;\r | |
308 | UINT32 DeviceId;\r | |
309 | CHAR8 AslName[AML_NAME_SEG_SIZE + 1];\r | |
310 | AML_OBJECT_NODE_HANDLE DeviceNode;\r | |
311 | \r | |
312 | ASSERT (MappingTable != NULL);\r | |
313 | ASSERT (PciNode != NULL);\r | |
314 | \r | |
315 | // Generic device name is "Dxx".\r | |
316 | CopyMem (AslName, "Dxx_", AML_NAME_SEG_SIZE + 1);\r | |
317 | \r | |
318 | LastIndex = MappingTable->LastIndex;\r | |
319 | \r | |
320 | // There are at most 32 devices on a Pci bus.\r | |
321 | if (LastIndex >= 32) {\r | |
322 | ASSERT (0);\r | |
323 | return EFI_INVALID_PARAMETER;\r | |
324 | }\r | |
325 | \r | |
326 | for (Index = 0; Index < LastIndex; Index++) {\r | |
327 | DeviceId = MappingTable->Table[Index];\r | |
328 | AslName[AML_NAME_SEG_SIZE - 3] = AsciiFromHex (DeviceId & 0xF);\r | |
329 | AslName[AML_NAME_SEG_SIZE - 2] = AsciiFromHex ((DeviceId >> 4) & 0xF);\r | |
330 | \r | |
331 | // ASL:\r | |
332 | // Device (Dxx) {\r | |
333 | // Name (_ADR, <address value>)\r | |
334 | // }\r | |
335 | Status = AmlCodeGenDevice (AslName, PciNode, &DeviceNode);\r | |
336 | if (EFI_ERROR (Status)) {\r | |
337 | ASSERT (0);\r | |
338 | return Status;\r | |
339 | }\r | |
340 | \r | |
341 | /* ACPI 6.4 specification, Table 6.2: "ADR Object Address Encodings"\r | |
342 | High word-Device #, Low word-Function #. (for example, device 3,\r | |
343 | function 2 is 0x00030002). To refer to all the functions on a device #,\r | |
344 | use a function number of FFFF).\r | |
345 | */\r | |
346 | Status = AmlCodeGenNameInteger (\r | |
347 | "_ADR",\r | |
348 | (DeviceId << 16) | 0xFFFF,\r | |
349 | DeviceNode,\r | |
350 | NULL\r | |
351 | );\r | |
352 | if (EFI_ERROR (Status)) {\r | |
353 | ASSERT (0);\r | |
354 | return Status;\r | |
355 | }\r | |
356 | \r | |
357 | // _SUN object is not generated as we don't know which slot will be used.\r | |
358 | }\r | |
359 | \r | |
360 | return Status;\r | |
361 | }\r | |
362 | \r | |
363 | /** Generate a _PRT object (Pci Routing Table) for the Pci device.\r | |
364 | \r | |
365 | Cf. ACPI 6.4 specification, s6.2.13 "_PRT (PCI Routing Table)"\r | |
366 | \r | |
367 | The first model (defining a _CRS object) is used. This is necessary because\r | |
368 | PCI legacy interrupts are active low and GICv2 SPI interrupts are active\r | |
369 | high.\r | |
370 | Even though PCI interrupts cannot be re-routed, only the first model allows\r | |
371 | to specify the activation state (low/high).\r | |
372 | \r | |
373 | @param [in] Generator The SSDT Pci generator.\r | |
374 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
375 | Protocol interface.\r | |
376 | @param [in] PciInfo Pci device information.\r | |
377 | @param [in, out] PciNode Pci node to amend.\r | |
378 | \r | |
379 | @retval EFI_SUCCESS The function completed successfully.\r | |
380 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
381 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
382 | **/\r | |
383 | STATIC\r | |
384 | EFI_STATUS\r | |
385 | EFIAPI\r | |
386 | GeneratePrt (\r | |
387 | IN ACPI_PCI_GENERATOR *Generator,\r | |
388 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
389 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
390 | IN OUT AML_OBJECT_NODE_HANDLE PciNode\r | |
391 | )\r | |
392 | {\r | |
393 | EFI_STATUS Status;\r | |
394 | INT32 Index;\r | |
e35a746c | 395 | AML_OBJECT_NODE_HANDLE PrtNode;\r |
e35a746c PG |
396 | CM_ARM_OBJ_REF *RefInfo;\r |
397 | UINT32 RefCount;\r | |
398 | CM_ARM_PCI_INTERRUPT_MAP_INFO *IrqMapInfo;\r | |
e35a746c PG |
399 | \r |
400 | ASSERT (Generator != NULL);\r | |
401 | ASSERT (CfgMgrProtocol != NULL);\r | |
402 | ASSERT (PciInfo != NULL);\r | |
403 | ASSERT (PciNode != NULL);\r | |
404 | \r | |
405 | PrtNode = NULL;\r | |
406 | \r | |
407 | // Get the array of CM_ARM_OBJ_REF referencing the\r | |
408 | // CM_ARM_PCI_INTERRUPT_MAP_INFO objects.\r | |
409 | Status = GetEArmObjCmRef (\r | |
410 | CfgMgrProtocol,\r | |
411 | PciInfo->InterruptMapToken,\r | |
412 | &RefInfo,\r | |
413 | &RefCount\r | |
414 | );\r | |
415 | if (EFI_ERROR (Status)) {\r | |
416 | ASSERT (0);\r | |
417 | return Status;\r | |
418 | }\r | |
419 | \r | |
e35a746c PG |
420 | // Initialized DeviceTable.\r |
421 | Status = MappingTableInitialize (&Generator->DeviceTable, RefCount);\r | |
422 | if (EFI_ERROR (Status)) {\r | |
423 | ASSERT (0);\r | |
424 | goto exit_handler0;\r | |
425 | }\r | |
426 | \r | |
427 | // ASL: Name (_PRT, Package () {})\r | |
428 | Status = AmlCodeGenNamePackage ("_PRT", NULL, &PrtNode);\r | |
429 | if (EFI_ERROR (Status)) {\r | |
430 | ASSERT (0);\r | |
431 | goto exit_handler;\r | |
432 | }\r | |
433 | \r | |
e35a746c PG |
434 | for (Index = 0; Index < RefCount; Index++) {\r |
435 | // Get CM_ARM_PCI_INTERRUPT_MAP_INFO structures one by one.\r | |
436 | Status = GetEArmObjPciInterruptMapInfo (\r | |
437 | CfgMgrProtocol,\r | |
438 | RefInfo[Index].ReferenceToken,\r | |
439 | &IrqMapInfo,\r | |
440 | NULL\r | |
441 | );\r | |
442 | if (EFI_ERROR (Status)) {\r | |
443 | ASSERT (0);\r | |
444 | goto exit_handler;\r | |
445 | }\r | |
446 | \r | |
5816bd3e PG |
447 | // Check that the interrupts flags are SPIs, level high.\r |
448 | // Cf. Arm BSA v1.0, sE.6 "Legacy interrupts"\r | |
449 | if ((Index > 0) &&\r | |
450 | (IrqMapInfo->IntcInterrupt.Interrupt >= 32) &&\r | |
451 | (IrqMapInfo->IntcInterrupt.Interrupt < 1020) &&\r | |
fc4a132c | 452 | ((IrqMapInfo->IntcInterrupt.Flags & 0xB) != 0))\r |
5816bd3e | 453 | {\r |
e35a746c | 454 | Status = EFI_INVALID_PARAMETER;\r |
5816bd3e | 455 | ASSERT_EFI_ERROR (Status);\r |
e35a746c PG |
456 | goto exit_handler;\r |
457 | }\r | |
458 | \r | |
459 | // Add the device to the DeviceTable.\r | |
460 | MappingTableAdd (&Generator->DeviceTable, IrqMapInfo->PciDevice);\r | |
461 | \r | |
462 | /* Add a _PRT entry.\r | |
463 | ASL\r | |
464 | Name (_PRT, Package () {\r | |
465 | <OldPrtEntries>,\r | |
466 | <NewPrtEntry>\r | |
467 | })\r | |
468 | \r | |
469 | Address is set as:\r | |
470 | ACPI 6.4 specification, Table 6.2: "ADR Object Address Encodings"\r | |
471 | High word-Device #, Low word-Function #. (for example, device 3,\r | |
472 | function 2 is 0x00030002). To refer to all the functions on a device #,\r | |
473 | use a function number of FFFF).\r | |
474 | */\r | |
475 | Status = AmlAddPrtEntry (\r | |
476 | (IrqMapInfo->PciDevice << 16) | 0xFFFF,\r | |
477 | IrqMapInfo->PciInterrupt,\r | |
5816bd3e PG |
478 | NULL,\r |
479 | IrqMapInfo->IntcInterrupt.Interrupt,\r | |
e35a746c PG |
480 | PrtNode\r |
481 | );\r | |
482 | if (EFI_ERROR (Status)) {\r | |
483 | ASSERT (0);\r | |
484 | goto exit_handler;\r | |
485 | }\r | |
486 | } // for\r | |
487 | \r | |
5816bd3e | 488 | // Attach the _PRT entry.\r |
e35a746c PG |
489 | Status = AmlAttachNode (PciNode, PrtNode);\r |
490 | if (EFI_ERROR (Status)) {\r | |
5816bd3e | 491 | ASSERT_EFI_ERROR (Status);\r |
e35a746c PG |
492 | goto exit_handler;\r |
493 | }\r | |
494 | \r | |
495 | PrtNode = NULL;\r | |
496 | \r | |
497 | // Generate the Pci slots once all the device have been added.\r | |
498 | Status = GeneratePciSlots (&Generator->DeviceTable, PciNode);\r | |
499 | if (EFI_ERROR (Status)) {\r | |
500 | ASSERT (0);\r | |
501 | goto exit_handler;\r | |
502 | }\r | |
503 | \r | |
504 | exit_handler:\r | |
505 | MappingTableFree (&Generator->DeviceTable);\r | |
506 | exit_handler0:\r | |
e35a746c PG |
507 | if (PrtNode != NULL) {\r |
508 | AmlDeleteTree (PrtNode);\r | |
509 | }\r | |
510 | \r | |
511 | return Status;\r | |
512 | }\r | |
513 | \r | |
514 | /** Generate a _CRS method for the Pci device.\r | |
515 | \r | |
516 | @param [in] Generator The SSDT Pci generator.\r | |
517 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
518 | Protocol interface.\r | |
519 | @param [in] PciInfo Pci device information.\r | |
520 | @param [in, out] PciNode Pci node to amend.\r | |
521 | \r | |
522 | @retval EFI_SUCCESS The function completed successfully.\r | |
523 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
524 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
525 | **/\r | |
526 | STATIC\r | |
527 | EFI_STATUS\r | |
528 | EFIAPI\r | |
529 | GeneratePciCrs (\r | |
530 | IN ACPI_PCI_GENERATOR *Generator,\r | |
531 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
532 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
533 | IN OUT AML_OBJECT_NODE_HANDLE PciNode\r | |
534 | )\r | |
535 | {\r | |
536 | EFI_STATUS Status;\r | |
537 | BOOLEAN Translation;\r | |
538 | UINT32 Index;\r | |
539 | CM_ARM_OBJ_REF *RefInfo;\r | |
540 | UINT32 RefCount;\r | |
541 | CM_ARM_PCI_ADDRESS_MAP_INFO *AddrMapInfo;\r | |
542 | AML_OBJECT_NODE_HANDLE CrsNode;\r | |
6cda306d | 543 | BOOLEAN IsPosDecode;\r |
e35a746c PG |
544 | \r |
545 | ASSERT (Generator != NULL);\r | |
546 | ASSERT (CfgMgrProtocol != NULL);\r | |
547 | ASSERT (PciInfo != NULL);\r | |
548 | ASSERT (PciNode != NULL);\r | |
549 | \r | |
550 | // ASL: Name (_CRS, ResourceTemplate () {})\r | |
551 | Status = AmlCodeGenNameResourceTemplate ("_CRS", PciNode, &CrsNode);\r | |
552 | if (EFI_ERROR (Status)) {\r | |
553 | ASSERT (0);\r | |
554 | return Status;\r | |
555 | }\r | |
556 | \r | |
557 | // ASL:\r | |
558 | // WordBusNumber ( // Bus numbers assigned to this root\r | |
559 | // ResourceProducer, MinFixed, MaxFixed, PosDecode,\r | |
560 | // 0, // AddressGranularity\r | |
561 | // <Start>, // AddressMinimum - Minimum Bus Number\r | |
562 | // <End>, // AddressMaximum - Maximum Bus Number\r | |
563 | // 0, // AddressTranslation - Set to 0\r | |
564 | // <End> - <Start> + 1 // RangeLength - Number of Busses\r | |
565 | // )\r | |
566 | Status = AmlCodeGenRdWordBusNumber (\r | |
567 | FALSE,\r | |
568 | TRUE,\r | |
569 | TRUE,\r | |
570 | TRUE,\r | |
571 | 0,\r | |
572 | PciInfo->StartBusNumber,\r | |
573 | PciInfo->EndBusNumber,\r | |
574 | 0,\r | |
575 | PciInfo->EndBusNumber - PciInfo->StartBusNumber + 1,\r | |
576 | 0,\r | |
577 | NULL,\r | |
578 | CrsNode,\r | |
579 | NULL\r | |
580 | );\r | |
581 | if (EFI_ERROR (Status)) {\r | |
582 | ASSERT (0);\r | |
583 | return Status;\r | |
584 | }\r | |
585 | \r | |
586 | // Get the array of CM_ARM_OBJ_REF referencing the\r | |
587 | // CM_ARM_PCI_ADDRESS_MAP_INFO objects.\r | |
588 | Status = GetEArmObjCmRef (\r | |
589 | CfgMgrProtocol,\r | |
590 | PciInfo->AddressMapToken,\r | |
591 | &RefInfo,\r | |
592 | &RefCount\r | |
593 | );\r | |
594 | if (EFI_ERROR (Status)) {\r | |
595 | ASSERT (0);\r | |
596 | return Status;\r | |
597 | }\r | |
598 | \r | |
599 | for (Index = 0; Index < RefCount; Index++) {\r | |
600 | // Get CM_ARM_PCI_ADDRESS_MAP_INFO structures one by one.\r | |
601 | Status = GetEArmObjPciAddressMapInfo (\r | |
602 | CfgMgrProtocol,\r | |
603 | RefInfo[Index].ReferenceToken,\r | |
604 | &AddrMapInfo,\r | |
605 | NULL\r | |
606 | );\r | |
607 | if (EFI_ERROR (Status)) {\r | |
608 | ASSERT (0);\r | |
609 | return Status;\r | |
610 | }\r | |
611 | \r | |
612 | Translation = (AddrMapInfo->CpuAddress != AddrMapInfo->PciAddress);\r | |
6cda306d JB |
613 | if (AddrMapInfo->CpuAddress >= AddrMapInfo->PciAddress) {\r |
614 | IsPosDecode = TRUE;\r | |
615 | } else {\r | |
616 | IsPosDecode = FALSE;\r | |
617 | }\r | |
e35a746c PG |
618 | \r |
619 | switch (AddrMapInfo->SpaceCode) {\r | |
620 | case PCI_SS_IO:\r | |
621 | Status = AmlCodeGenRdDWordIo (\r | |
622 | FALSE,\r | |
623 | TRUE,\r | |
624 | TRUE,\r | |
6cda306d | 625 | IsPosDecode,\r |
e35a746c PG |
626 | 3,\r |
627 | 0,\r | |
628 | AddrMapInfo->PciAddress,\r | |
629 | AddrMapInfo->PciAddress + AddrMapInfo->AddressSize - 1,\r | |
6cda306d | 630 | Translation ? AddrMapInfo->CpuAddress - AddrMapInfo->PciAddress : 0,\r |
e35a746c PG |
631 | AddrMapInfo->AddressSize,\r |
632 | 0,\r | |
633 | NULL,\r | |
634 | TRUE,\r | |
635 | FALSE,\r | |
636 | CrsNode,\r | |
637 | NULL\r | |
638 | );\r | |
639 | break;\r | |
640 | \r | |
641 | case PCI_SS_M32:\r | |
642 | Status = AmlCodeGenRdDWordMemory (\r | |
643 | FALSE,\r | |
6cda306d | 644 | IsPosDecode,\r |
e35a746c PG |
645 | TRUE,\r |
646 | TRUE,\r | |
647 | TRUE,\r | |
648 | TRUE,\r | |
649 | 0,\r | |
650 | AddrMapInfo->PciAddress,\r | |
651 | AddrMapInfo->PciAddress + AddrMapInfo->AddressSize - 1,\r | |
6cda306d | 652 | Translation ? AddrMapInfo->CpuAddress - AddrMapInfo->PciAddress : 0,\r |
e35a746c PG |
653 | AddrMapInfo->AddressSize,\r |
654 | 0,\r | |
655 | NULL,\r | |
656 | 0,\r | |
657 | TRUE,\r | |
658 | CrsNode,\r | |
659 | NULL\r | |
660 | );\r | |
661 | break;\r | |
662 | \r | |
663 | case PCI_SS_M64:\r | |
664 | Status = AmlCodeGenRdQWordMemory (\r | |
665 | FALSE,\r | |
6cda306d | 666 | IsPosDecode,\r |
e35a746c PG |
667 | TRUE,\r |
668 | TRUE,\r | |
669 | TRUE,\r | |
670 | TRUE,\r | |
671 | 0,\r | |
672 | AddrMapInfo->PciAddress,\r | |
673 | AddrMapInfo->PciAddress + AddrMapInfo->AddressSize - 1,\r | |
6cda306d | 674 | Translation ? AddrMapInfo->CpuAddress - AddrMapInfo->PciAddress : 0,\r |
e35a746c PG |
675 | AddrMapInfo->AddressSize,\r |
676 | 0,\r | |
677 | NULL,\r | |
678 | 0,\r | |
679 | TRUE,\r | |
680 | CrsNode,\r | |
681 | NULL\r | |
682 | );\r | |
683 | break;\r | |
684 | \r | |
685 | default:\r | |
686 | Status = EFI_INVALID_PARAMETER;\r | |
687 | } // switch\r | |
688 | \r | |
689 | if (EFI_ERROR (Status)) {\r | |
690 | ASSERT (0);\r | |
691 | return Status;\r | |
692 | }\r | |
693 | } // for\r | |
694 | \r | |
695 | return Status;\r | |
696 | }\r | |
697 | \r | |
698 | /** Add an _OSC template method to the PciNode.\r | |
699 | \r | |
700 | The _OSC method is provided as an AML blob. The blob is\r | |
701 | parsed and attached at the end of the PciNode list of variable elements.\r | |
702 | \r | |
703 | @param [in, out] PciNode Pci node to amend.\r | |
704 | \r | |
705 | @retval EFI_SUCCESS The function completed successfully.\r | |
706 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
707 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
708 | **/\r | |
709 | STATIC\r | |
710 | EFI_STATUS\r | |
711 | EFIAPI\r | |
712 | AddOscMethod (\r | |
713 | IN OUT AML_OBJECT_NODE_HANDLE PciNode\r | |
714 | )\r | |
715 | {\r | |
716 | EFI_STATUS Status;\r | |
717 | EFI_STATUS Status1;\r | |
718 | EFI_ACPI_DESCRIPTION_HEADER *SsdtPcieOscTemplate;\r | |
719 | AML_ROOT_NODE_HANDLE OscTemplateRoot;\r | |
720 | AML_OBJECT_NODE_HANDLE OscNode;\r | |
721 | \r | |
722 | ASSERT (PciNode != NULL);\r | |
723 | \r | |
724 | // Parse the Ssdt Pci Osc Template.\r | |
725 | SsdtPcieOscTemplate = (EFI_ACPI_DESCRIPTION_HEADER *)\r | |
726 | ssdtpcieosctemplate_aml_code;\r | |
727 | \r | |
728 | OscNode = NULL;\r | |
729 | OscTemplateRoot = NULL;\r | |
730 | Status = AmlParseDefinitionBlock (\r | |
731 | SsdtPcieOscTemplate,\r | |
732 | &OscTemplateRoot\r | |
733 | );\r | |
734 | if (EFI_ERROR (Status)) {\r | |
735 | DEBUG ((\r | |
736 | DEBUG_ERROR,\r | |
737 | "ERROR: SSDT-PCI-OSC: Failed to parse SSDT PCI OSC Template."\r | |
738 | " Status = %r\n",\r | |
739 | Status\r | |
740 | ));\r | |
741 | return Status;\r | |
742 | }\r | |
743 | \r | |
744 | Status = AmlFindNode (OscTemplateRoot, "\\_OSC", &OscNode);\r | |
745 | if (EFI_ERROR (Status)) {\r | |
746 | goto error_handler;\r | |
747 | }\r | |
748 | \r | |
749 | Status = AmlDetachNode (OscNode);\r | |
750 | if (EFI_ERROR (Status)) {\r | |
751 | goto error_handler;\r | |
752 | }\r | |
753 | \r | |
754 | Status = AmlAttachNode (PciNode, OscNode);\r | |
755 | if (EFI_ERROR (Status)) {\r | |
756 | // Free the detached node.\r | |
757 | AmlDeleteTree (OscNode);\r | |
758 | goto error_handler;\r | |
759 | }\r | |
760 | \r | |
761 | error_handler:\r | |
762 | // Cleanup\r | |
763 | Status1 = AmlDeleteTree (OscTemplateRoot);\r | |
764 | if (EFI_ERROR (Status1)) {\r | |
765 | DEBUG ((\r | |
766 | DEBUG_ERROR,\r | |
767 | "ERROR: SSDT-PCI-OSC: Failed to cleanup AML tree."\r | |
768 | " Status = %r\n",\r | |
769 | Status1\r | |
770 | ));\r | |
771 | // If Status was success but we failed to delete the AML Tree\r | |
772 | // return Status1 else return the original error code, i.e. Status.\r | |
773 | if (!EFI_ERROR (Status)) {\r | |
774 | return Status1;\r | |
775 | }\r | |
776 | }\r | |
777 | \r | |
778 | return Status;\r | |
779 | }\r | |
780 | \r | |
781 | /** Generate a Pci device.\r | |
782 | \r | |
783 | @param [in] Generator The SSDT Pci generator.\r | |
784 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
785 | Protocol interface.\r | |
786 | @param [in] PciInfo Pci device information.\r | |
787 | @param [in] Uid Unique Id of the Pci device.\r | |
788 | @param [in, out] RootNode RootNode of the AML tree to populate.\r | |
789 | \r | |
790 | @retval EFI_SUCCESS The function completed successfully.\r | |
791 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
792 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
793 | **/\r | |
794 | STATIC\r | |
795 | EFI_STATUS\r | |
796 | EFIAPI\r | |
797 | GeneratePciDevice (\r | |
798 | IN ACPI_PCI_GENERATOR *Generator,\r | |
799 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
800 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
801 | IN UINT32 Uid,\r | |
802 | IN OUT AML_ROOT_NODE_HANDLE *RootNode\r | |
803 | )\r | |
804 | {\r | |
805 | EFI_STATUS Status;\r | |
806 | \r | |
807 | CHAR8 AslName[AML_NAME_SEG_SIZE + 1];\r | |
808 | AML_OBJECT_NODE_HANDLE ScopeNode;\r | |
809 | AML_OBJECT_NODE_HANDLE PciNode;\r | |
810 | \r | |
811 | ASSERT (Generator != NULL);\r | |
812 | ASSERT (CfgMgrProtocol != NULL);\r | |
813 | ASSERT (PciInfo != NULL);\r | |
814 | ASSERT (RootNode != NULL);\r | |
815 | \r | |
816 | PciNode = NULL;\r | |
817 | \r | |
818 | // ASL: Scope (\_SB) {}\r | |
819 | Status = AmlCodeGenScope (SB_SCOPE, RootNode, &ScopeNode);\r | |
820 | if (EFI_ERROR (Status)) {\r | |
821 | ASSERT (0);\r | |
822 | return Status;\r | |
823 | }\r | |
824 | \r | |
825 | // Write the name of the PCI device.\r | |
826 | CopyMem (AslName, "PCIx", AML_NAME_SEG_SIZE + 1);\r | |
827 | AslName[AML_NAME_SEG_SIZE - 1] = AsciiFromHex (Uid);\r | |
828 | \r | |
829 | // ASL: Device (PCIx) {}\r | |
830 | Status = AmlCodeGenDevice (AslName, ScopeNode, &PciNode);\r | |
831 | if (EFI_ERROR (Status)) {\r | |
832 | ASSERT (0);\r | |
833 | return Status;\r | |
834 | }\r | |
835 | \r | |
836 | // Populate the PCIx node with some Id values.\r | |
837 | Status = GeneratePciDeviceInfo (PciInfo, Uid, PciNode);\r | |
838 | if (EFI_ERROR (Status)) {\r | |
839 | ASSERT (0);\r | |
840 | return Status;\r | |
841 | }\r | |
842 | \r | |
843 | // Generate the Pci Routing Table (_PRT).\r | |
844 | if (PciInfo->InterruptMapToken != CM_NULL_TOKEN) {\r | |
845 | Status = GeneratePrt (\r | |
846 | Generator,\r | |
847 | CfgMgrProtocol,\r | |
848 | PciInfo,\r | |
849 | PciNode\r | |
850 | );\r | |
851 | if (EFI_ERROR (Status)) {\r | |
852 | ASSERT (0);\r | |
853 | return Status;\r | |
854 | }\r | |
855 | }\r | |
856 | \r | |
857 | // Generate the _CRS method.\r | |
858 | Status = GeneratePciCrs (Generator, CfgMgrProtocol, PciInfo, PciNode);\r | |
859 | if (EFI_ERROR (Status)) {\r | |
860 | ASSERT (0);\r | |
861 | return Status;\r | |
862 | }\r | |
863 | \r | |
864 | // Add the template _OSC method.\r | |
865 | Status = AddOscMethod (PciNode);\r | |
866 | ASSERT_EFI_ERROR (Status);\r | |
867 | return Status;\r | |
868 | }\r | |
869 | \r | |
870 | /** Build an Ssdt table describing a Pci device.\r | |
871 | \r | |
872 | @param [in] Generator The SSDT Pci generator.\r | |
873 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
874 | Protocol interface.\r | |
875 | @param [in] AcpiTableInfo Pointer to the ACPI table information.\r | |
876 | @param [in] PciInfo Pci device information.\r | |
877 | @param [in] Uid Unique Id of the Pci device.\r | |
878 | @param [out] Table If success, contains the created SSDT table.\r | |
879 | \r | |
880 | @retval EFI_SUCCESS The function completed successfully.\r | |
881 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
882 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
883 | **/\r | |
884 | STATIC\r | |
885 | EFI_STATUS\r | |
886 | EFIAPI\r | |
887 | BuildSsdtPciTable (\r | |
888 | IN ACPI_PCI_GENERATOR *Generator,\r | |
889 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
890 | IN CONST CM_STD_OBJ_ACPI_TABLE_INFO *CONST AcpiTableInfo,\r | |
891 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
892 | IN UINT32 Uid,\r | |
893 | OUT EFI_ACPI_DESCRIPTION_HEADER **Table\r | |
894 | )\r | |
895 | {\r | |
896 | EFI_STATUS Status;\r | |
897 | EFI_STATUS Status1;\r | |
898 | AML_ROOT_NODE_HANDLE RootNode;\r | |
899 | \r | |
900 | ASSERT (Generator != NULL);\r | |
901 | ASSERT (CfgMgrProtocol != NULL);\r | |
902 | ASSERT (PciInfo != NULL);\r | |
903 | ASSERT (Table != NULL);\r | |
904 | \r | |
905 | // Create a new Ssdt table.\r | |
906 | Status = AddSsdtAcpiHeader (\r | |
907 | CfgMgrProtocol,\r | |
908 | &Generator->Header,\r | |
909 | AcpiTableInfo,\r | |
910 | &RootNode\r | |
911 | );\r | |
912 | if (EFI_ERROR (Status)) {\r | |
913 | ASSERT (0);\r | |
914 | return Status;\r | |
915 | }\r | |
916 | \r | |
917 | Status = GeneratePciDevice (\r | |
918 | Generator,\r | |
919 | CfgMgrProtocol,\r | |
920 | PciInfo,\r | |
921 | Uid,\r | |
922 | RootNode\r | |
923 | );\r | |
924 | if (EFI_ERROR (Status)) {\r | |
925 | ASSERT (0);\r | |
926 | goto exit_handler;\r | |
927 | }\r | |
928 | \r | |
929 | // Serialize the tree.\r | |
930 | Status = AmlSerializeDefinitionBlock (\r | |
931 | RootNode,\r | |
932 | Table\r | |
933 | );\r | |
934 | if (EFI_ERROR (Status)) {\r | |
935 | DEBUG ((\r | |
936 | DEBUG_ERROR,\r | |
937 | "ERROR: SSDT-PCI: Failed to Serialize SSDT Table Data."\r | |
938 | " Status = %r\n",\r | |
939 | Status\r | |
940 | ));\r | |
941 | }\r | |
942 | \r | |
943 | exit_handler:\r | |
944 | // Cleanup\r | |
945 | Status1 = AmlDeleteTree (RootNode);\r | |
946 | if (EFI_ERROR (Status1)) {\r | |
947 | DEBUG ((\r | |
948 | DEBUG_ERROR,\r | |
949 | "ERROR: SSDT-PCI: Failed to cleanup AML tree."\r | |
950 | " Status = %r\n",\r | |
951 | Status1\r | |
952 | ));\r | |
953 | // If Status was success but we failed to delete the AML Tree\r | |
954 | // return Status1 else return the original error code, i.e. Status.\r | |
955 | if (!EFI_ERROR (Status)) {\r | |
956 | return Status1;\r | |
957 | }\r | |
958 | }\r | |
959 | \r | |
960 | return Status;\r | |
961 | }\r | |
962 | \r | |
963 | /** Construct SSDT tables describing Pci root complexes.\r | |
964 | \r | |
965 | This function invokes the Configuration Manager protocol interface\r | |
966 | to get the required hardware information for generating the ACPI\r | |
967 | table.\r | |
968 | \r | |
969 | If this function allocates any resources then they must be freed\r | |
970 | in the FreeXXXXTableResourcesEx function.\r | |
971 | \r | |
972 | @param [in] This Pointer to the ACPI table generator.\r | |
973 | @param [in] AcpiTableInfo Pointer to the ACPI table information.\r | |
974 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
975 | Protocol interface.\r | |
976 | @param [out] Table Pointer to a list of generated ACPI table(s).\r | |
977 | @param [out] TableCount Number of generated ACPI table(s).\r | |
978 | \r | |
979 | @retval EFI_SUCCESS Table generated successfully.\r | |
980 | @retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration\r | |
981 | Manager is less than the Object size for\r | |
982 | the requested object.\r | |
983 | @retval EFI_INVALID_PARAMETER A parameter is invalid.\r | |
984 | @retval EFI_NOT_FOUND Could not find information.\r | |
985 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
986 | @retval EFI_UNSUPPORTED Unsupported configuration.\r | |
987 | **/\r | |
988 | STATIC\r | |
989 | EFI_STATUS\r | |
990 | EFIAPI\r | |
991 | BuildSsdtPciTableEx (\r | |
992 | IN CONST ACPI_TABLE_GENERATOR *This,\r | |
993 | IN CONST CM_STD_OBJ_ACPI_TABLE_INFO *CONST AcpiTableInfo,\r | |
994 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
995 | OUT EFI_ACPI_DESCRIPTION_HEADER ***Table,\r | |
996 | OUT UINTN *CONST TableCount\r | |
997 | )\r | |
998 | {\r | |
999 | EFI_STATUS Status;\r | |
1000 | CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo;\r | |
1001 | UINT32 PciCount;\r | |
1002 | UINTN Index;\r | |
1003 | EFI_ACPI_DESCRIPTION_HEADER **TableList;\r | |
1004 | ACPI_PCI_GENERATOR *Generator;\r | |
1005 | \r | |
1006 | ASSERT (This != NULL);\r | |
1007 | ASSERT (AcpiTableInfo != NULL);\r | |
1008 | ASSERT (CfgMgrProtocol != NULL);\r | |
1009 | ASSERT (Table != NULL);\r | |
1010 | ASSERT (TableCount != NULL);\r | |
1011 | ASSERT (AcpiTableInfo->TableGeneratorId == This->GeneratorID);\r | |
1012 | ASSERT (AcpiTableInfo->AcpiTableSignature == This->AcpiTableSignature);\r | |
1013 | \r | |
1014 | *TableCount = 0;\r | |
1015 | Generator = (ACPI_PCI_GENERATOR *)This;\r | |
1016 | \r | |
1017 | Status = GetEArmObjPciConfigSpaceInfo (\r | |
1018 | CfgMgrProtocol,\r | |
1019 | CM_NULL_TOKEN,\r | |
1020 | &PciInfo,\r | |
1021 | &PciCount\r | |
1022 | );\r | |
1023 | if (EFI_ERROR (Status)) {\r | |
1024 | ASSERT (0);\r | |
1025 | return Status;\r | |
1026 | }\r | |
1027 | \r | |
1028 | if (PciCount > MAX_PCI_ROOT_COMPLEXES_SUPPORTED) {\r | |
1029 | DEBUG ((\r | |
1030 | DEBUG_ERROR,\r | |
1031 | "ERROR: SSDT-PCI: Too many Pci root complexes: %d."\r | |
1032 | " Maximum Pci root complexes supported = %d.\n",\r | |
1033 | PciCount,\r | |
1034 | MAX_PCI_ROOT_COMPLEXES_SUPPORTED\r | |
1035 | ));\r | |
1036 | return EFI_INVALID_PARAMETER;\r | |
1037 | }\r | |
1038 | \r | |
1039 | // Allocate a table to store pointers to the SSDT tables.\r | |
1040 | TableList = (EFI_ACPI_DESCRIPTION_HEADER **)\r | |
1041 | AllocateZeroPool (\r | |
1042 | (sizeof (EFI_ACPI_DESCRIPTION_HEADER *) * PciCount)\r | |
1043 | );\r | |
1044 | if (TableList == NULL) {\r | |
1045 | Status = EFI_OUT_OF_RESOURCES;\r | |
1046 | DEBUG ((\r | |
1047 | DEBUG_ERROR,\r | |
1048 | "ERROR: SSDT-PCI: Failed to allocate memory for Table List."\r | |
1049 | " Status = %r\n",\r | |
1050 | Status\r | |
1051 | ));\r | |
1052 | return Status;\r | |
1053 | }\r | |
1054 | \r | |
1055 | // Setup the table list early so that appropriate cleanup\r | |
1056 | // can be done in case of failure.\r | |
1057 | *Table = TableList;\r | |
1058 | \r | |
1059 | for (Index = 0; Index < PciCount; Index++) {\r | |
1060 | // Build a SSDT table describing the Pci devices.\r | |
1061 | Status = BuildSsdtPciTable (\r | |
1062 | Generator,\r | |
1063 | CfgMgrProtocol,\r | |
1064 | AcpiTableInfo,\r | |
1065 | &PciInfo[Index],\r | |
1066 | Index,\r | |
1067 | &TableList[Index]\r | |
1068 | );\r | |
1069 | if (EFI_ERROR (Status)) {\r | |
1070 | DEBUG ((\r | |
1071 | DEBUG_ERROR,\r | |
1072 | "ERROR: SSDT-PCI: Failed to build associated SSDT table."\r | |
1073 | " Status = %r\n",\r | |
1074 | Status\r | |
1075 | ));\r | |
1076 | goto error_handler;\r | |
1077 | }\r | |
1078 | \r | |
1079 | *TableCount += 1;\r | |
1080 | } // for\r | |
1081 | \r | |
1082 | error_handler:\r | |
1083 | // Note: Table list and Table count have been setup. The\r | |
1084 | // error handler does nothing here as the framework will invoke\r | |
1085 | // FreeSsdtPciTableEx () even on failure.\r | |
1086 | return Status;\r | |
1087 | }\r | |
1088 | \r | |
1089 | /** Free any resources allocated for constructing the tables.\r | |
1090 | \r | |
1091 | @param [in] This Pointer to the ACPI table generator.\r | |
1092 | @param [in] AcpiTableInfo Pointer to the ACPI Table Info.\r | |
1093 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
1094 | Protocol Interface.\r | |
1095 | @param [in, out] Table Pointer to an array of pointers\r | |
1096 | to ACPI Table(s).\r | |
1097 | @param [in] TableCount Number of ACPI table(s).\r | |
1098 | \r | |
1099 | @retval EFI_SUCCESS The resources were freed successfully.\r | |
1100 | @retval EFI_INVALID_PARAMETER The table pointer is NULL or invalid.\r | |
1101 | **/\r | |
1102 | STATIC\r | |
1103 | EFI_STATUS\r | |
1104 | EFIAPI\r | |
1105 | FreeSsdtPciTableEx (\r | |
1106 | IN CONST ACPI_TABLE_GENERATOR *CONST This,\r | |
1107 | IN CONST CM_STD_OBJ_ACPI_TABLE_INFO *CONST AcpiTableInfo,\r | |
1108 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
1109 | IN OUT EFI_ACPI_DESCRIPTION_HEADER ***CONST Table,\r | |
1110 | IN CONST UINTN TableCount\r | |
1111 | )\r | |
1112 | {\r | |
1113 | EFI_ACPI_DESCRIPTION_HEADER **TableList;\r | |
1114 | UINTN Index;\r | |
1115 | \r | |
1116 | ASSERT (This != NULL);\r | |
1117 | ASSERT (AcpiTableInfo != NULL);\r | |
1118 | ASSERT (CfgMgrProtocol != NULL);\r | |
1119 | ASSERT (AcpiTableInfo->TableGeneratorId == This->GeneratorID);\r | |
1120 | ASSERT (AcpiTableInfo->AcpiTableSignature == This->AcpiTableSignature);\r | |
1121 | \r | |
1122 | if ((Table == NULL) ||\r | |
1123 | (*Table == NULL) ||\r | |
1124 | (TableCount == 0))\r | |
1125 | {\r | |
1126 | DEBUG ((DEBUG_ERROR, "ERROR: SSDT-PCI: Invalid Table Pointer\n"));\r | |
1127 | return EFI_INVALID_PARAMETER;\r | |
1128 | }\r | |
1129 | \r | |
1130 | TableList = *Table;\r | |
1131 | for (Index = 0; Index < TableCount; Index++) {\r | |
1132 | if ((TableList[Index] != NULL) &&\r | |
1133 | (TableList[Index]->Signature ==\r | |
1134 | EFI_ACPI_6_3_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE))\r | |
1135 | {\r | |
1136 | FreePool (TableList[Index]);\r | |
1137 | } else {\r | |
1138 | DEBUG ((\r | |
1139 | DEBUG_ERROR,\r | |
1140 | "ERROR: SSDT-PCI: Could not free SSDT table at index %d.",\r | |
1141 | Index\r | |
1142 | ));\r | |
1143 | return EFI_INVALID_PARAMETER;\r | |
1144 | }\r | |
1145 | } // for\r | |
1146 | \r | |
1147 | // Free the table list.\r | |
1148 | FreePool (*Table);\r | |
1149 | \r | |
1150 | return EFI_SUCCESS;\r | |
1151 | }\r | |
1152 | \r | |
1153 | /** This macro defines the SSDT Pci Table Generator revision.\r | |
1154 | */\r | |
1155 | #define SSDT_PCI_GENERATOR_REVISION CREATE_REVISION (1, 0)\r | |
1156 | \r | |
1157 | /** The interface for the SSDT Pci Table Generator.\r | |
1158 | */\r | |
1159 | STATIC\r | |
1160 | ACPI_PCI_GENERATOR SsdtPcieGenerator = {\r | |
1161 | // ACPI table generator header\r | |
1162 | {\r | |
1163 | // Generator ID\r | |
1164 | CREATE_STD_ACPI_TABLE_GEN_ID (EStdAcpiTableIdSsdtPciExpress),\r | |
1165 | // Generator Description\r | |
1166 | L"ACPI.STD.SSDT.PCI.GENERATOR",\r | |
1167 | // ACPI Table Signature\r | |
1168 | EFI_ACPI_6_3_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE,\r | |
1169 | // ACPI Table Revision - Unused\r | |
1170 | 0,\r | |
1171 | // Minimum ACPI Table Revision - Unused\r | |
1172 | 0,\r | |
1173 | // Creator ID\r | |
1174 | TABLE_GENERATOR_CREATOR_ID_ARM,\r | |
1175 | // Creator Revision\r | |
1176 | SSDT_PCI_GENERATOR_REVISION,\r | |
1177 | // Build table function. Use the extended version instead.\r | |
1178 | NULL,\r | |
1179 | // Free table function. Use the extended version instead.\r | |
1180 | NULL,\r | |
1181 | // Extended Build table function.\r | |
1182 | BuildSsdtPciTableEx,\r | |
1183 | // Extended free function.\r | |
1184 | FreeSsdtPciTableEx\r | |
1185 | },\r | |
1186 | \r | |
1187 | // Private fields are defined from here.\r | |
1188 | \r | |
e35a746c PG |
1189 | // DeviceTable\r |
1190 | {\r | |
1191 | // Table\r | |
1192 | NULL,\r | |
1193 | // LastIndex\r | |
1194 | 0,\r | |
1195 | // MaxIndex\r | |
1196 | 0\r | |
1197 | },\r | |
1198 | };\r | |
1199 | \r | |
1200 | /** Register the Generator with the ACPI Table Factory.\r | |
1201 | \r | |
1202 | @param [in] ImageHandle The handle to the image.\r | |
1203 | @param [in] SystemTable Pointer to the System Table.\r | |
1204 | \r | |
1205 | @retval EFI_SUCCESS The Generator is registered.\r | |
1206 | @retval EFI_INVALID_PARAMETER A parameter is invalid.\r | |
1207 | @retval EFI_ALREADY_STARTED The Generator for the Table ID\r | |
1208 | is already registered.\r | |
1209 | **/\r | |
1210 | EFI_STATUS\r | |
1211 | EFIAPI\r | |
1212 | AcpiSsdtPcieLibConstructor (\r | |
1213 | IN EFI_HANDLE ImageHandle,\r | |
1214 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1215 | )\r | |
1216 | {\r | |
1217 | EFI_STATUS Status;\r | |
1218 | \r | |
1219 | Status = RegisterAcpiTableGenerator (&SsdtPcieGenerator.Header);\r | |
1220 | DEBUG ((\r | |
1221 | DEBUG_INFO,\r | |
1222 | "SSDT-PCI: Register Generator. Status = %r\n",\r | |
1223 | Status\r | |
1224 | ));\r | |
1225 | ASSERT_EFI_ERROR (Status);\r | |
1226 | return Status;\r | |
1227 | }\r | |
1228 | \r | |
1229 | /** Deregister the Generator from the ACPI Table Factory.\r | |
1230 | \r | |
1231 | @param [in] ImageHandle The handle to the image.\r | |
1232 | @param [in] SystemTable Pointer to the System Table.\r | |
1233 | \r | |
1234 | @retval EFI_SUCCESS The Generator is deregistered.\r | |
1235 | @retval EFI_INVALID_PARAMETER A parameter is invalid.\r | |
1236 | @retval EFI_NOT_FOUND The Generator is not registered.\r | |
1237 | **/\r | |
1238 | EFI_STATUS\r | |
1239 | EFIAPI\r | |
1240 | AcpiSsdtPcieLibDestructor (\r | |
1241 | IN EFI_HANDLE ImageHandle,\r | |
1242 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1243 | )\r | |
1244 | {\r | |
1245 | EFI_STATUS Status;\r | |
1246 | \r | |
1247 | Status = DeregisterAcpiTableGenerator (&SsdtPcieGenerator.Header);\r | |
1248 | DEBUG ((\r | |
1249 | DEBUG_INFO,\r | |
1250 | "SSDT-PCI: Deregister Generator. Status = %r\n",\r | |
1251 | Status\r | |
1252 | ));\r | |
1253 | ASSERT_EFI_ERROR (Status);\r | |
1254 | return Status;\r | |
1255 | }\r |