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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 | |
19a87683 | 32 | #include <Library/SsdtPcieSupportLib.h>\r |
e35a746c PG |
33 | #include <Protocol/ConfigurationManagerProtocol.h>\r |
34 | \r | |
35 | #include "SsdtPcieGenerator.h"\r | |
36 | \r | |
033ba8bb KQ |
37 | #define PCI_MAX_DEVICE_COUNT_PER_BUS 32\r |
38 | #define PCI_MAX_FUNCTION_COUNT_PER_DEVICE 8\r | |
39 | \r | |
e35a746c PG |
40 | /** ARM standard SSDT Pcie Table Generator.\r |
41 | \r | |
42 | Requirements:\r | |
43 | The following Configuration Manager Object(s) are required by\r | |
44 | this Generator:\r | |
45 | - EArmObjCmRef\r | |
46 | - EArmObjPciConfigSpaceInfo\r | |
47 | - EArmObjPciAddressMapInfo\r | |
48 | - EArmObjPciInterruptMapInfo\r | |
49 | */\r | |
50 | \r | |
51 | /** This macro expands to a function that retrieves the cross-CM-object-\r | |
52 | reference information from the Configuration Manager.\r | |
53 | */\r | |
54 | GET_OBJECT_LIST (\r | |
55 | EObjNameSpaceArm,\r | |
56 | EArmObjCmRef,\r | |
57 | CM_ARM_OBJ_REF\r | |
58 | );\r | |
59 | \r | |
60 | /** This macro expands to a function that retrieves the Pci\r | |
61 | Configuration Space Information from the Configuration Manager.\r | |
62 | */\r | |
63 | GET_OBJECT_LIST (\r | |
64 | EObjNameSpaceArm,\r | |
65 | EArmObjPciConfigSpaceInfo,\r | |
66 | CM_ARM_PCI_CONFIG_SPACE_INFO\r | |
67 | );\r | |
68 | \r | |
69 | /** This macro expands to a function that retrieves the Pci\r | |
70 | Address Mapping Information from the Configuration Manager.\r | |
71 | */\r | |
72 | GET_OBJECT_LIST (\r | |
73 | EObjNameSpaceArm,\r | |
74 | EArmObjPciAddressMapInfo,\r | |
75 | CM_ARM_PCI_ADDRESS_MAP_INFO\r | |
76 | );\r | |
77 | \r | |
78 | /** This macro expands to a function that retrieves the Pci\r | |
79 | Interrupt Mapping Information from the Configuration Manager.\r | |
80 | */\r | |
81 | GET_OBJECT_LIST (\r | |
82 | EObjNameSpaceArm,\r | |
83 | EArmObjPciInterruptMapInfo,\r | |
84 | CM_ARM_PCI_INTERRUPT_MAP_INFO\r | |
85 | );\r | |
86 | \r | |
87 | /** Initialize the MappingTable.\r | |
88 | \r | |
89 | @param [in] MappingTable The mapping table structure.\r | |
90 | @param [in] Count Number of entries to allocate in the\r | |
91 | MappingTable.\r | |
92 | \r | |
93 | @retval EFI_SUCCESS Success.\r | |
94 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
95 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
96 | **/\r | |
97 | STATIC\r | |
98 | EFI_STATUS\r | |
99 | EFIAPI\r | |
100 | MappingTableInitialize (\r | |
101 | IN MAPPING_TABLE *MappingTable,\r | |
102 | IN UINT32 Count\r | |
103 | )\r | |
104 | {\r | |
105 | UINT32 *Table;\r | |
106 | \r | |
107 | if ((MappingTable == NULL) ||\r | |
108 | (Count == 0))\r | |
109 | {\r | |
110 | ASSERT (0);\r | |
111 | return EFI_INVALID_PARAMETER;\r | |
112 | }\r | |
113 | \r | |
114 | Table = AllocateZeroPool (sizeof (*Table) * Count);\r | |
115 | if (Table == NULL) {\r | |
116 | ASSERT (0);\r | |
117 | return EFI_OUT_OF_RESOURCES;\r | |
118 | }\r | |
119 | \r | |
120 | MappingTable->Table = Table;\r | |
121 | MappingTable->LastIndex = 0;\r | |
122 | MappingTable->MaxIndex = Count;\r | |
123 | \r | |
124 | return EFI_SUCCESS;\r | |
125 | }\r | |
126 | \r | |
127 | /** Free the MappingTable.\r | |
128 | \r | |
129 | @param [in, out] MappingTable The mapping table structure.\r | |
130 | **/\r | |
131 | STATIC\r | |
132 | VOID\r | |
133 | EFIAPI\r | |
134 | MappingTableFree (\r | |
135 | IN OUT MAPPING_TABLE *MappingTable\r | |
136 | )\r | |
137 | {\r | |
138 | ASSERT (MappingTable != NULL);\r | |
139 | ASSERT (MappingTable->Table != NULL);\r | |
140 | \r | |
141 | if (MappingTable->Table != NULL) {\r | |
142 | FreePool (MappingTable->Table);\r | |
143 | }\r | |
144 | }\r | |
145 | \r | |
146 | /** Add a new entry to the MappingTable and return its index.\r | |
147 | \r | |
148 | If an entry with [Integer] is already available in the table,\r | |
149 | return its index without adding a new entry.\r | |
150 | \r | |
151 | @param [in] MappingTable The mapping table structure.\r | |
152 | @param [in] Integer New Integer entry to add.\r | |
153 | \r | |
154 | @retval The index of the Integer entry in the MappingTable.\r | |
155 | **/\r | |
156 | STATIC\r | |
157 | UINT32\r | |
158 | EFIAPI\r | |
159 | MappingTableAdd (\r | |
160 | IN MAPPING_TABLE *MappingTable,\r | |
161 | IN UINT32 Integer\r | |
162 | )\r | |
163 | {\r | |
164 | UINT32 *Table;\r | |
165 | UINT32 Index;\r | |
166 | UINT32 LastIndex;\r | |
167 | \r | |
168 | ASSERT (MappingTable != NULL);\r | |
169 | ASSERT (MappingTable->Table != NULL);\r | |
170 | \r | |
171 | Table = MappingTable->Table;\r | |
172 | LastIndex = MappingTable->LastIndex;\r | |
173 | \r | |
174 | // Search if there is already an entry with this Integer.\r | |
175 | for (Index = 0; Index < LastIndex; Index++) {\r | |
176 | if (Table[Index] == Integer) {\r | |
177 | return Index;\r | |
178 | }\r | |
179 | }\r | |
180 | \r | |
181 | ASSERT (LastIndex < MappingTable->MaxIndex);\r | |
182 | \r | |
183 | // If no, create a new entry.\r | |
184 | Table[LastIndex] = Integer;\r | |
185 | \r | |
186 | return MappingTable->LastIndex++;\r | |
187 | }\r | |
188 | \r | |
189 | /** Generate required Pci device information.\r | |
190 | \r | |
191 | ASL code:\r | |
192 | Name (_UID, <Uid>) // Uid of the Pci device\r | |
193 | Name (_HID, EISAID ("PNP0A08")) // PCI Express Root Bridge\r | |
194 | Name (_CID, EISAID ("PNP0A03")) // Compatible PCI Root Bridge\r | |
195 | Name (_SEG, <Pci segment group>) // PCI Segment Group number\r | |
196 | Name (_BBN, <Bus number>) // PCI Base Bus Number\r | |
197 | Name (_CCA, 1) // Initially mark the PCI coherent\r | |
198 | \r | |
199 | @param [in] PciInfo Pci device information.\r | |
200 | @param [in] Uid Unique Id of the Pci device.\r | |
201 | @param [in, out] PciNode Pci node to amend.\r | |
202 | \r | |
203 | @retval EFI_SUCCESS Success.\r | |
204 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
205 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
206 | **/\r | |
207 | STATIC\r | |
208 | EFI_STATUS\r | |
209 | EFIAPI\r | |
210 | GeneratePciDeviceInfo (\r | |
211 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
212 | IN UINT32 Uid,\r | |
213 | IN OUT AML_OBJECT_NODE_HANDLE PciNode\r | |
214 | )\r | |
215 | {\r | |
216 | EFI_STATUS Status;\r | |
217 | UINT32 EisaId;\r | |
218 | \r | |
219 | ASSERT (PciInfo != NULL);\r | |
220 | ASSERT (PciNode != NULL);\r | |
221 | \r | |
222 | // ASL: Name (_UID, <Uid>)\r | |
223 | Status = AmlCodeGenNameInteger ("_UID", Uid, PciNode, NULL);\r | |
224 | if (EFI_ERROR (Status)) {\r | |
225 | ASSERT (0);\r | |
226 | return Status;\r | |
227 | }\r | |
228 | \r | |
229 | // ASL: Name (_HID, EISAID ("PNP0A08"))\r | |
230 | Status = AmlGetEisaIdFromString ("PNP0A08", &EisaId);\r | |
231 | if (EFI_ERROR (Status)) {\r | |
232 | ASSERT (0);\r | |
233 | return Status;\r | |
234 | }\r | |
235 | \r | |
236 | Status = AmlCodeGenNameInteger ("_HID", EisaId, PciNode, NULL);\r | |
237 | if (EFI_ERROR (Status)) {\r | |
238 | ASSERT (0);\r | |
239 | return Status;\r | |
240 | }\r | |
241 | \r | |
242 | // ASL: Name (_CID, EISAID ("PNP0A03"))\r | |
243 | Status = AmlGetEisaIdFromString ("PNP0A03", &EisaId);\r | |
244 | if (EFI_ERROR (Status)) {\r | |
245 | ASSERT (0);\r | |
246 | return Status;\r | |
247 | }\r | |
248 | \r | |
249 | Status = AmlCodeGenNameInteger ("_CID", EisaId, PciNode, NULL);\r | |
250 | if (EFI_ERROR (Status)) {\r | |
251 | ASSERT (0);\r | |
252 | return Status;\r | |
253 | }\r | |
254 | \r | |
255 | // ASL: Name (_SEG, <Pci segment group>)\r | |
256 | Status = AmlCodeGenNameInteger (\r | |
257 | "_SEG",\r | |
258 | PciInfo->PciSegmentGroupNumber,\r | |
259 | PciNode,\r | |
260 | NULL\r | |
261 | );\r | |
262 | if (EFI_ERROR (Status)) {\r | |
263 | ASSERT (0);\r | |
264 | return Status;\r | |
265 | }\r | |
266 | \r | |
267 | // ASL: Name (_BBN, <Bus number>)\r | |
268 | Status = AmlCodeGenNameInteger (\r | |
269 | "_BBN",\r | |
270 | PciInfo->StartBusNumber,\r | |
271 | PciNode,\r | |
272 | NULL\r | |
273 | );\r | |
274 | if (EFI_ERROR (Status)) {\r | |
275 | ASSERT (0);\r | |
276 | return Status;\r | |
277 | }\r | |
278 | \r | |
279 | // ASL: Name (_CCA, 1)\r | |
280 | // Must be aligned with the IORT CCA property in\r | |
281 | // "Table 14 Memory access properties"\r | |
282 | Status = AmlCodeGenNameInteger ("_CCA", 1, PciNode, NULL);\r | |
283 | ASSERT_EFI_ERROR (Status);\r | |
284 | return Status;\r | |
285 | }\r | |
286 | \r | |
e35a746c PG |
287 | /** Generate a _PRT object (Pci Routing Table) for the Pci device.\r |
288 | \r | |
289 | Cf. ACPI 6.4 specification, s6.2.13 "_PRT (PCI Routing Table)"\r | |
290 | \r | |
291 | The first model (defining a _CRS object) is used. This is necessary because\r | |
292 | PCI legacy interrupts are active low and GICv2 SPI interrupts are active\r | |
293 | high.\r | |
294 | Even though PCI interrupts cannot be re-routed, only the first model allows\r | |
295 | to specify the activation state (low/high).\r | |
296 | \r | |
297 | @param [in] Generator The SSDT Pci generator.\r | |
298 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
299 | Protocol interface.\r | |
300 | @param [in] PciInfo Pci device information.\r | |
0a4079ad | 301 | @param [in] Uid Unique Id of the Pci device.\r |
e35a746c PG |
302 | @param [in, out] PciNode Pci node to amend.\r |
303 | \r | |
304 | @retval EFI_SUCCESS The function completed successfully.\r | |
305 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
306 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
307 | **/\r | |
308 | STATIC\r | |
309 | EFI_STATUS\r | |
310 | EFIAPI\r | |
311 | GeneratePrt (\r | |
312 | IN ACPI_PCI_GENERATOR *Generator,\r | |
313 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
314 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
0a4079ad | 315 | IN UINT32 Uid,\r |
e35a746c PG |
316 | IN OUT AML_OBJECT_NODE_HANDLE PciNode\r |
317 | )\r | |
318 | {\r | |
319 | EFI_STATUS Status;\r | |
320 | INT32 Index;\r | |
e35a746c | 321 | AML_OBJECT_NODE_HANDLE PrtNode;\r |
e35a746c PG |
322 | CM_ARM_OBJ_REF *RefInfo;\r |
323 | UINT32 RefCount;\r | |
324 | CM_ARM_PCI_INTERRUPT_MAP_INFO *IrqMapInfo;\r | |
e35a746c PG |
325 | \r |
326 | ASSERT (Generator != NULL);\r | |
327 | ASSERT (CfgMgrProtocol != NULL);\r | |
328 | ASSERT (PciInfo != NULL);\r | |
329 | ASSERT (PciNode != NULL);\r | |
330 | \r | |
331 | PrtNode = NULL;\r | |
332 | \r | |
333 | // Get the array of CM_ARM_OBJ_REF referencing the\r | |
334 | // CM_ARM_PCI_INTERRUPT_MAP_INFO objects.\r | |
335 | Status = GetEArmObjCmRef (\r | |
336 | CfgMgrProtocol,\r | |
337 | PciInfo->InterruptMapToken,\r | |
338 | &RefInfo,\r | |
339 | &RefCount\r | |
340 | );\r | |
341 | if (EFI_ERROR (Status)) {\r | |
342 | ASSERT (0);\r | |
343 | return Status;\r | |
344 | }\r | |
345 | \r | |
e35a746c PG |
346 | // Initialized DeviceTable.\r |
347 | Status = MappingTableInitialize (&Generator->DeviceTable, RefCount);\r | |
348 | if (EFI_ERROR (Status)) {\r | |
349 | ASSERT (0);\r | |
350 | goto exit_handler0;\r | |
351 | }\r | |
352 | \r | |
353 | // ASL: Name (_PRT, Package () {})\r | |
354 | Status = AmlCodeGenNamePackage ("_PRT", NULL, &PrtNode);\r | |
355 | if (EFI_ERROR (Status)) {\r | |
356 | ASSERT (0);\r | |
357 | goto exit_handler;\r | |
358 | }\r | |
359 | \r | |
e35a746c PG |
360 | for (Index = 0; Index < RefCount; Index++) {\r |
361 | // Get CM_ARM_PCI_INTERRUPT_MAP_INFO structures one by one.\r | |
362 | Status = GetEArmObjPciInterruptMapInfo (\r | |
363 | CfgMgrProtocol,\r | |
364 | RefInfo[Index].ReferenceToken,\r | |
365 | &IrqMapInfo,\r | |
366 | NULL\r | |
367 | );\r | |
368 | if (EFI_ERROR (Status)) {\r | |
369 | ASSERT (0);\r | |
370 | goto exit_handler;\r | |
371 | }\r | |
372 | \r | |
5816bd3e PG |
373 | // Check that the interrupts flags are SPIs, level high.\r |
374 | // Cf. Arm BSA v1.0, sE.6 "Legacy interrupts"\r | |
375 | if ((Index > 0) &&\r | |
376 | (IrqMapInfo->IntcInterrupt.Interrupt >= 32) &&\r | |
377 | (IrqMapInfo->IntcInterrupt.Interrupt < 1020) &&\r | |
fc4a132c | 378 | ((IrqMapInfo->IntcInterrupt.Flags & 0xB) != 0))\r |
5816bd3e | 379 | {\r |
e35a746c | 380 | Status = EFI_INVALID_PARAMETER;\r |
5816bd3e | 381 | ASSERT_EFI_ERROR (Status);\r |
e35a746c PG |
382 | goto exit_handler;\r |
383 | }\r | |
384 | \r | |
385 | // Add the device to the DeviceTable.\r | |
386 | MappingTableAdd (&Generator->DeviceTable, IrqMapInfo->PciDevice);\r | |
387 | \r | |
388 | /* Add a _PRT entry.\r | |
389 | ASL\r | |
390 | Name (_PRT, Package () {\r | |
391 | <OldPrtEntries>,\r | |
392 | <NewPrtEntry>\r | |
393 | })\r | |
394 | \r | |
395 | Address is set as:\r | |
396 | ACPI 6.4 specification, Table 6.2: "ADR Object Address Encodings"\r | |
397 | High word-Device #, Low word-Function #. (for example, device 3,\r | |
398 | function 2 is 0x00030002). To refer to all the functions on a device #,\r | |
399 | use a function number of FFFF).\r | |
400 | */\r | |
401 | Status = AmlAddPrtEntry (\r | |
402 | (IrqMapInfo->PciDevice << 16) | 0xFFFF,\r | |
403 | IrqMapInfo->PciInterrupt,\r | |
5816bd3e PG |
404 | NULL,\r |
405 | IrqMapInfo->IntcInterrupt.Interrupt,\r | |
e35a746c PG |
406 | PrtNode\r |
407 | );\r | |
408 | if (EFI_ERROR (Status)) {\r | |
409 | ASSERT (0);\r | |
410 | goto exit_handler;\r | |
411 | }\r | |
412 | } // for\r | |
413 | \r | |
5816bd3e | 414 | // Attach the _PRT entry.\r |
e35a746c PG |
415 | Status = AmlAttachNode (PciNode, PrtNode);\r |
416 | if (EFI_ERROR (Status)) {\r | |
5816bd3e | 417 | ASSERT_EFI_ERROR (Status);\r |
e35a746c PG |
418 | goto exit_handler;\r |
419 | }\r | |
420 | \r | |
421 | PrtNode = NULL;\r | |
422 | \r | |
423 | // Generate the Pci slots once all the device have been added.\r | |
0a4079ad | 424 | Status = GeneratePciSlots (PciInfo, &Generator->DeviceTable, Uid, PciNode);\r |
e35a746c PG |
425 | if (EFI_ERROR (Status)) {\r |
426 | ASSERT (0);\r | |
427 | goto exit_handler;\r | |
428 | }\r | |
429 | \r | |
430 | exit_handler:\r | |
431 | MappingTableFree (&Generator->DeviceTable);\r | |
432 | exit_handler0:\r | |
e35a746c PG |
433 | if (PrtNode != NULL) {\r |
434 | AmlDeleteTree (PrtNode);\r | |
435 | }\r | |
436 | \r | |
437 | return Status;\r | |
438 | }\r | |
439 | \r | |
440 | /** Generate a _CRS method for the Pci device.\r | |
441 | \r | |
442 | @param [in] Generator The SSDT Pci generator.\r | |
443 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
444 | Protocol interface.\r | |
445 | @param [in] PciInfo Pci device information.\r | |
446 | @param [in, out] PciNode Pci node to amend.\r | |
447 | \r | |
448 | @retval EFI_SUCCESS The function completed successfully.\r | |
449 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
450 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
451 | **/\r | |
452 | STATIC\r | |
453 | EFI_STATUS\r | |
454 | EFIAPI\r | |
455 | GeneratePciCrs (\r | |
456 | IN ACPI_PCI_GENERATOR *Generator,\r | |
457 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
458 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
459 | IN OUT AML_OBJECT_NODE_HANDLE PciNode\r | |
460 | )\r | |
461 | {\r | |
462 | EFI_STATUS Status;\r | |
463 | BOOLEAN Translation;\r | |
464 | UINT32 Index;\r | |
465 | CM_ARM_OBJ_REF *RefInfo;\r | |
466 | UINT32 RefCount;\r | |
467 | CM_ARM_PCI_ADDRESS_MAP_INFO *AddrMapInfo;\r | |
468 | AML_OBJECT_NODE_HANDLE CrsNode;\r | |
6cda306d | 469 | BOOLEAN IsPosDecode;\r |
e35a746c PG |
470 | \r |
471 | ASSERT (Generator != NULL);\r | |
472 | ASSERT (CfgMgrProtocol != NULL);\r | |
473 | ASSERT (PciInfo != NULL);\r | |
474 | ASSERT (PciNode != NULL);\r | |
475 | \r | |
476 | // ASL: Name (_CRS, ResourceTemplate () {})\r | |
477 | Status = AmlCodeGenNameResourceTemplate ("_CRS", PciNode, &CrsNode);\r | |
478 | if (EFI_ERROR (Status)) {\r | |
479 | ASSERT (0);\r | |
480 | return Status;\r | |
481 | }\r | |
482 | \r | |
483 | // ASL:\r | |
484 | // WordBusNumber ( // Bus numbers assigned to this root\r | |
485 | // ResourceProducer, MinFixed, MaxFixed, PosDecode,\r | |
486 | // 0, // AddressGranularity\r | |
487 | // <Start>, // AddressMinimum - Minimum Bus Number\r | |
488 | // <End>, // AddressMaximum - Maximum Bus Number\r | |
489 | // 0, // AddressTranslation - Set to 0\r | |
490 | // <End> - <Start> + 1 // RangeLength - Number of Busses\r | |
491 | // )\r | |
492 | Status = AmlCodeGenRdWordBusNumber (\r | |
493 | FALSE,\r | |
494 | TRUE,\r | |
495 | TRUE,\r | |
496 | TRUE,\r | |
497 | 0,\r | |
498 | PciInfo->StartBusNumber,\r | |
499 | PciInfo->EndBusNumber,\r | |
500 | 0,\r | |
501 | PciInfo->EndBusNumber - PciInfo->StartBusNumber + 1,\r | |
502 | 0,\r | |
503 | NULL,\r | |
504 | CrsNode,\r | |
505 | NULL\r | |
506 | );\r | |
507 | if (EFI_ERROR (Status)) {\r | |
508 | ASSERT (0);\r | |
509 | return Status;\r | |
510 | }\r | |
511 | \r | |
512 | // Get the array of CM_ARM_OBJ_REF referencing the\r | |
513 | // CM_ARM_PCI_ADDRESS_MAP_INFO objects.\r | |
514 | Status = GetEArmObjCmRef (\r | |
515 | CfgMgrProtocol,\r | |
516 | PciInfo->AddressMapToken,\r | |
517 | &RefInfo,\r | |
518 | &RefCount\r | |
519 | );\r | |
520 | if (EFI_ERROR (Status)) {\r | |
521 | ASSERT (0);\r | |
522 | return Status;\r | |
523 | }\r | |
524 | \r | |
525 | for (Index = 0; Index < RefCount; Index++) {\r | |
526 | // Get CM_ARM_PCI_ADDRESS_MAP_INFO structures one by one.\r | |
527 | Status = GetEArmObjPciAddressMapInfo (\r | |
528 | CfgMgrProtocol,\r | |
529 | RefInfo[Index].ReferenceToken,\r | |
530 | &AddrMapInfo,\r | |
531 | NULL\r | |
532 | );\r | |
533 | if (EFI_ERROR (Status)) {\r | |
534 | ASSERT (0);\r | |
535 | return Status;\r | |
536 | }\r | |
537 | \r | |
538 | Translation = (AddrMapInfo->CpuAddress != AddrMapInfo->PciAddress);\r | |
6cda306d JB |
539 | if (AddrMapInfo->CpuAddress >= AddrMapInfo->PciAddress) {\r |
540 | IsPosDecode = TRUE;\r | |
541 | } else {\r | |
542 | IsPosDecode = FALSE;\r | |
543 | }\r | |
e35a746c PG |
544 | \r |
545 | switch (AddrMapInfo->SpaceCode) {\r | |
546 | case PCI_SS_IO:\r | |
547 | Status = AmlCodeGenRdDWordIo (\r | |
548 | FALSE,\r | |
549 | TRUE,\r | |
550 | TRUE,\r | |
6cda306d | 551 | IsPosDecode,\r |
e35a746c PG |
552 | 3,\r |
553 | 0,\r | |
554 | AddrMapInfo->PciAddress,\r | |
555 | AddrMapInfo->PciAddress + AddrMapInfo->AddressSize - 1,\r | |
6cda306d | 556 | Translation ? AddrMapInfo->CpuAddress - AddrMapInfo->PciAddress : 0,\r |
e35a746c PG |
557 | AddrMapInfo->AddressSize,\r |
558 | 0,\r | |
559 | NULL,\r | |
560 | TRUE,\r | |
561 | FALSE,\r | |
562 | CrsNode,\r | |
563 | NULL\r | |
564 | );\r | |
565 | break;\r | |
566 | \r | |
567 | case PCI_SS_M32:\r | |
568 | Status = AmlCodeGenRdDWordMemory (\r | |
569 | FALSE,\r | |
6cda306d | 570 | IsPosDecode,\r |
e35a746c PG |
571 | TRUE,\r |
572 | TRUE,\r | |
573 | TRUE,\r | |
574 | TRUE,\r | |
575 | 0,\r | |
576 | AddrMapInfo->PciAddress,\r | |
577 | AddrMapInfo->PciAddress + AddrMapInfo->AddressSize - 1,\r | |
6cda306d | 578 | Translation ? AddrMapInfo->CpuAddress - AddrMapInfo->PciAddress : 0,\r |
e35a746c PG |
579 | AddrMapInfo->AddressSize,\r |
580 | 0,\r | |
581 | NULL,\r | |
582 | 0,\r | |
583 | TRUE,\r | |
584 | CrsNode,\r | |
585 | NULL\r | |
586 | );\r | |
587 | break;\r | |
588 | \r | |
589 | case PCI_SS_M64:\r | |
590 | Status = AmlCodeGenRdQWordMemory (\r | |
591 | FALSE,\r | |
6cda306d | 592 | IsPosDecode,\r |
e35a746c PG |
593 | TRUE,\r |
594 | TRUE,\r | |
595 | TRUE,\r | |
596 | TRUE,\r | |
597 | 0,\r | |
598 | AddrMapInfo->PciAddress,\r | |
599 | AddrMapInfo->PciAddress + AddrMapInfo->AddressSize - 1,\r | |
6cda306d | 600 | Translation ? AddrMapInfo->CpuAddress - AddrMapInfo->PciAddress : 0,\r |
e35a746c PG |
601 | AddrMapInfo->AddressSize,\r |
602 | 0,\r | |
603 | NULL,\r | |
604 | 0,\r | |
605 | TRUE,\r | |
606 | CrsNode,\r | |
607 | NULL\r | |
608 | );\r | |
609 | break;\r | |
610 | \r | |
611 | default:\r | |
612 | Status = EFI_INVALID_PARAMETER;\r | |
613 | } // switch\r | |
614 | \r | |
615 | if (EFI_ERROR (Status)) {\r | |
616 | ASSERT (0);\r | |
617 | return Status;\r | |
618 | }\r | |
619 | } // for\r | |
620 | \r | |
621 | return Status;\r | |
622 | }\r | |
623 | \r | |
033ba8bb KQ |
624 | /** Generate a RES0 device node to reserve PNP motherboard resources\r |
625 | for a given PCI node.\r | |
626 | \r | |
627 | @param [in] PciNode Parent PCI node handle of the generated\r | |
628 | resource object.\r | |
629 | @param [out] CrsNode CRS node of the AML tree to populate.\r | |
630 | \r | |
631 | @retval EFI_SUCCESS The function completed successfully.\r | |
632 | @retval EFI_INVALID_PARAMETER Invalid input parameter.\r | |
633 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
634 | **/\r | |
635 | STATIC\r | |
636 | EFI_STATUS\r | |
637 | EFIAPI\r | |
638 | GenerateMotherboardDevice (\r | |
639 | IN AML_OBJECT_NODE_HANDLE PciNode,\r | |
640 | OUT AML_OBJECT_NODE_HANDLE *CrsNode\r | |
641 | )\r | |
642 | {\r | |
643 | EFI_STATUS Status;\r | |
644 | UINT32 EisaId;\r | |
645 | AML_OBJECT_NODE_HANDLE ResNode;\r | |
646 | \r | |
647 | if (CrsNode == NULL) {\r | |
648 | ASSERT (0);\r | |
649 | return EFI_INVALID_PARAMETER;\r | |
650 | }\r | |
651 | \r | |
652 | // ASL: Device (RES0) {}\r | |
653 | Status = AmlCodeGenDevice ("RES0", PciNode, &ResNode);\r | |
654 | if (EFI_ERROR (Status)) {\r | |
655 | ASSERT (0);\r | |
656 | return Status;\r | |
657 | }\r | |
658 | \r | |
659 | // ASL: Name (_HID, EISAID ("PNP0C02"))\r | |
660 | Status = AmlGetEisaIdFromString ("PNP0C02", &EisaId); /* PNP Motherboard Resources */\r | |
661 | if (EFI_ERROR (Status)) {\r | |
662 | ASSERT (0);\r | |
663 | return Status;\r | |
664 | }\r | |
665 | \r | |
666 | Status = AmlCodeGenNameInteger ("_HID", EisaId, ResNode, NULL);\r | |
667 | if (EFI_ERROR (Status)) {\r | |
668 | ASSERT (0);\r | |
669 | return Status;\r | |
670 | }\r | |
671 | \r | |
672 | // ASL: Name (_CRS, ResourceTemplate () {})\r | |
673 | Status = AmlCodeGenNameResourceTemplate ("_CRS", ResNode, CrsNode);\r | |
674 | if (EFI_ERROR (Status)) {\r | |
675 | ASSERT (0);\r | |
676 | return Status;\r | |
677 | }\r | |
678 | \r | |
679 | return Status;\r | |
680 | }\r | |
681 | \r | |
682 | /** Reserves ECAM space for PCI config space\r | |
683 | \r | |
684 | @param [in] Generator The SSDT Pci generator.\r | |
685 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
686 | Protocol interface.\r | |
687 | @param [in] PciInfo Pci device information.\r | |
688 | @param [in, out] PciNode RootNode of the AML tree to populate.\r | |
689 | \r | |
690 | @retval EFI_SUCCESS The function completed successfully.\r | |
691 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
692 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
693 | **/\r | |
694 | STATIC\r | |
695 | EFI_STATUS\r | |
696 | EFIAPI\r | |
697 | ReserveEcamSpace (\r | |
698 | IN ACPI_PCI_GENERATOR *Generator,\r | |
699 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
700 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
701 | IN OUT AML_OBJECT_NODE_HANDLE PciNode\r | |
702 | )\r | |
703 | {\r | |
704 | EFI_STATUS Status;\r | |
705 | AML_OBJECT_NODE_HANDLE CrsNode;\r | |
706 | UINT64 AddressMinimum;\r | |
707 | UINT64 AddressMaximum;\r | |
708 | \r | |
709 | Status = GenerateMotherboardDevice (PciNode, &CrsNode);\r | |
710 | if (EFI_ERROR (Status)) {\r | |
711 | ASSERT (0);\r | |
712 | return Status;\r | |
713 | }\r | |
714 | \r | |
715 | AddressMinimum = PciInfo->BaseAddress + (PciInfo->StartBusNumber *\r | |
716 | PCI_MAX_DEVICE_COUNT_PER_BUS * PCI_MAX_FUNCTION_COUNT_PER_DEVICE * SIZE_4KB);\r | |
717 | AddressMaximum = PciInfo->BaseAddress + ((PciInfo->EndBusNumber + 1) *\r | |
718 | PCI_MAX_DEVICE_COUNT_PER_BUS * PCI_MAX_FUNCTION_COUNT_PER_DEVICE * SIZE_4KB) - 1;\r | |
719 | \r | |
720 | Status = AmlCodeGenRdQWordMemory (\r | |
721 | FALSE,\r | |
722 | TRUE,\r | |
723 | TRUE,\r | |
724 | TRUE,\r | |
725 | FALSE, // non-cacheable\r | |
726 | TRUE,\r | |
727 | 0,\r | |
728 | AddressMinimum,\r | |
729 | AddressMaximum,\r | |
730 | 0, // no translation\r | |
731 | AddressMaximum - AddressMinimum + 1,\r | |
732 | 0,\r | |
733 | NULL,\r | |
734 | 0,\r | |
735 | TRUE,\r | |
736 | CrsNode,\r | |
737 | NULL\r | |
738 | );\r | |
739 | \r | |
740 | if (EFI_ERROR (Status)) {\r | |
741 | ASSERT (0);\r | |
742 | return Status;\r | |
743 | }\r | |
744 | \r | |
745 | return Status;\r | |
746 | }\r | |
747 | \r | |
e35a746c PG |
748 | /** Generate a Pci device.\r |
749 | \r | |
750 | @param [in] Generator The SSDT Pci generator.\r | |
751 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
752 | Protocol interface.\r | |
753 | @param [in] PciInfo Pci device information.\r | |
754 | @param [in] Uid Unique Id of the Pci device.\r | |
755 | @param [in, out] RootNode RootNode of the AML tree to populate.\r | |
756 | \r | |
757 | @retval EFI_SUCCESS The function completed successfully.\r | |
758 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
759 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
760 | **/\r | |
761 | STATIC\r | |
762 | EFI_STATUS\r | |
763 | EFIAPI\r | |
764 | GeneratePciDevice (\r | |
765 | IN ACPI_PCI_GENERATOR *Generator,\r | |
766 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
767 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
768 | IN UINT32 Uid,\r | |
769 | IN OUT AML_ROOT_NODE_HANDLE *RootNode\r | |
770 | )\r | |
771 | {\r | |
772 | EFI_STATUS Status;\r | |
773 | \r | |
774 | CHAR8 AslName[AML_NAME_SEG_SIZE + 1];\r | |
775 | AML_OBJECT_NODE_HANDLE ScopeNode;\r | |
776 | AML_OBJECT_NODE_HANDLE PciNode;\r | |
777 | \r | |
778 | ASSERT (Generator != NULL);\r | |
779 | ASSERT (CfgMgrProtocol != NULL);\r | |
780 | ASSERT (PciInfo != NULL);\r | |
781 | ASSERT (RootNode != NULL);\r | |
782 | \r | |
783 | PciNode = NULL;\r | |
784 | \r | |
785 | // ASL: Scope (\_SB) {}\r | |
786 | Status = AmlCodeGenScope (SB_SCOPE, RootNode, &ScopeNode);\r | |
787 | if (EFI_ERROR (Status)) {\r | |
788 | ASSERT (0);\r | |
789 | return Status;\r | |
790 | }\r | |
791 | \r | |
792 | // Write the name of the PCI device.\r | |
793 | CopyMem (AslName, "PCIx", AML_NAME_SEG_SIZE + 1);\r | |
9ac155bf JB |
794 | AslName[AML_NAME_SEG_SIZE - 1] = AsciiFromHex (Uid & 0xF);\r |
795 | if (Uid > 0xF) {\r | |
796 | AslName[AML_NAME_SEG_SIZE - 2] = AsciiFromHex ((Uid >> 4) & 0xF);\r | |
797 | }\r | |
e35a746c PG |
798 | \r |
799 | // ASL: Device (PCIx) {}\r | |
800 | Status = AmlCodeGenDevice (AslName, ScopeNode, &PciNode);\r | |
801 | if (EFI_ERROR (Status)) {\r | |
802 | ASSERT (0);\r | |
803 | return Status;\r | |
804 | }\r | |
805 | \r | |
806 | // Populate the PCIx node with some Id values.\r | |
807 | Status = GeneratePciDeviceInfo (PciInfo, Uid, PciNode);\r | |
808 | if (EFI_ERROR (Status)) {\r | |
809 | ASSERT (0);\r | |
810 | return Status;\r | |
811 | }\r | |
812 | \r | |
813 | // Generate the Pci Routing Table (_PRT).\r | |
814 | if (PciInfo->InterruptMapToken != CM_NULL_TOKEN) {\r | |
815 | Status = GeneratePrt (\r | |
816 | Generator,\r | |
817 | CfgMgrProtocol,\r | |
818 | PciInfo,\r | |
0a4079ad | 819 | Uid,\r |
e35a746c PG |
820 | PciNode\r |
821 | );\r | |
822 | if (EFI_ERROR (Status)) {\r | |
823 | ASSERT (0);\r | |
824 | return Status;\r | |
825 | }\r | |
826 | }\r | |
827 | \r | |
828 | // Generate the _CRS method.\r | |
829 | Status = GeneratePciCrs (Generator, CfgMgrProtocol, PciInfo, PciNode);\r | |
830 | if (EFI_ERROR (Status)) {\r | |
831 | ASSERT (0);\r | |
832 | return Status;\r | |
833 | }\r | |
834 | \r | |
033ba8bb KQ |
835 | // Add the PNP Motherboard Resources Device to reserve ECAM space\r |
836 | Status = ReserveEcamSpace (Generator, CfgMgrProtocol, PciInfo, PciNode);\r | |
837 | if (EFI_ERROR (Status)) {\r | |
838 | ASSERT (0);\r | |
839 | return Status;\r | |
840 | }\r | |
841 | \r | |
e35a746c | 842 | // Add the template _OSC method.\r |
19a87683 | 843 | Status = AddOscMethod (PciInfo, PciNode);\r |
e35a746c | 844 | ASSERT_EFI_ERROR (Status);\r |
033ba8bb | 845 | \r |
e35a746c PG |
846 | return Status;\r |
847 | }\r | |
848 | \r | |
849 | /** Build an Ssdt table describing a Pci device.\r | |
850 | \r | |
851 | @param [in] Generator The SSDT Pci generator.\r | |
852 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
853 | Protocol interface.\r | |
854 | @param [in] AcpiTableInfo Pointer to the ACPI table information.\r | |
855 | @param [in] PciInfo Pci device information.\r | |
856 | @param [in] Uid Unique Id of the Pci device.\r | |
857 | @param [out] Table If success, contains the created SSDT table.\r | |
858 | \r | |
859 | @retval EFI_SUCCESS The function completed successfully.\r | |
860 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
861 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
862 | **/\r | |
863 | STATIC\r | |
864 | EFI_STATUS\r | |
865 | EFIAPI\r | |
866 | BuildSsdtPciTable (\r | |
867 | IN ACPI_PCI_GENERATOR *Generator,\r | |
868 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
869 | IN CONST CM_STD_OBJ_ACPI_TABLE_INFO *CONST AcpiTableInfo,\r | |
870 | IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,\r | |
871 | IN UINT32 Uid,\r | |
872 | OUT EFI_ACPI_DESCRIPTION_HEADER **Table\r | |
873 | )\r | |
874 | {\r | |
875 | EFI_STATUS Status;\r | |
876 | EFI_STATUS Status1;\r | |
877 | AML_ROOT_NODE_HANDLE RootNode;\r | |
878 | \r | |
879 | ASSERT (Generator != NULL);\r | |
880 | ASSERT (CfgMgrProtocol != NULL);\r | |
881 | ASSERT (PciInfo != NULL);\r | |
882 | ASSERT (Table != NULL);\r | |
883 | \r | |
884 | // Create a new Ssdt table.\r | |
885 | Status = AddSsdtAcpiHeader (\r | |
886 | CfgMgrProtocol,\r | |
887 | &Generator->Header,\r | |
888 | AcpiTableInfo,\r | |
889 | &RootNode\r | |
890 | );\r | |
891 | if (EFI_ERROR (Status)) {\r | |
892 | ASSERT (0);\r | |
893 | return Status;\r | |
894 | }\r | |
895 | \r | |
896 | Status = GeneratePciDevice (\r | |
897 | Generator,\r | |
898 | CfgMgrProtocol,\r | |
899 | PciInfo,\r | |
900 | Uid,\r | |
901 | RootNode\r | |
902 | );\r | |
903 | if (EFI_ERROR (Status)) {\r | |
904 | ASSERT (0);\r | |
905 | goto exit_handler;\r | |
906 | }\r | |
907 | \r | |
908 | // Serialize the tree.\r | |
909 | Status = AmlSerializeDefinitionBlock (\r | |
910 | RootNode,\r | |
911 | Table\r | |
912 | );\r | |
913 | if (EFI_ERROR (Status)) {\r | |
914 | DEBUG ((\r | |
915 | DEBUG_ERROR,\r | |
916 | "ERROR: SSDT-PCI: Failed to Serialize SSDT Table Data."\r | |
917 | " Status = %r\n",\r | |
918 | Status\r | |
919 | ));\r | |
920 | }\r | |
921 | \r | |
922 | exit_handler:\r | |
923 | // Cleanup\r | |
924 | Status1 = AmlDeleteTree (RootNode);\r | |
925 | if (EFI_ERROR (Status1)) {\r | |
926 | DEBUG ((\r | |
927 | DEBUG_ERROR,\r | |
928 | "ERROR: SSDT-PCI: Failed to cleanup AML tree."\r | |
929 | " Status = %r\n",\r | |
930 | Status1\r | |
931 | ));\r | |
932 | // If Status was success but we failed to delete the AML Tree\r | |
933 | // return Status1 else return the original error code, i.e. Status.\r | |
934 | if (!EFI_ERROR (Status)) {\r | |
935 | return Status1;\r | |
936 | }\r | |
937 | }\r | |
938 | \r | |
939 | return Status;\r | |
940 | }\r | |
941 | \r | |
942 | /** Construct SSDT tables describing Pci root complexes.\r | |
943 | \r | |
944 | This function invokes the Configuration Manager protocol interface\r | |
945 | to get the required hardware information for generating the ACPI\r | |
946 | table.\r | |
947 | \r | |
948 | If this function allocates any resources then they must be freed\r | |
949 | in the FreeXXXXTableResourcesEx function.\r | |
950 | \r | |
951 | @param [in] This Pointer to the ACPI table generator.\r | |
952 | @param [in] AcpiTableInfo Pointer to the ACPI table information.\r | |
953 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
954 | Protocol interface.\r | |
955 | @param [out] Table Pointer to a list of generated ACPI table(s).\r | |
956 | @param [out] TableCount Number of generated ACPI table(s).\r | |
957 | \r | |
958 | @retval EFI_SUCCESS Table generated successfully.\r | |
959 | @retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration\r | |
960 | Manager is less than the Object size for\r | |
961 | the requested object.\r | |
962 | @retval EFI_INVALID_PARAMETER A parameter is invalid.\r | |
963 | @retval EFI_NOT_FOUND Could not find information.\r | |
964 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
965 | @retval EFI_UNSUPPORTED Unsupported configuration.\r | |
966 | **/\r | |
967 | STATIC\r | |
968 | EFI_STATUS\r | |
969 | EFIAPI\r | |
970 | BuildSsdtPciTableEx (\r | |
971 | IN CONST ACPI_TABLE_GENERATOR *This,\r | |
972 | IN CONST CM_STD_OBJ_ACPI_TABLE_INFO *CONST AcpiTableInfo,\r | |
973 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
974 | OUT EFI_ACPI_DESCRIPTION_HEADER ***Table,\r | |
975 | OUT UINTN *CONST TableCount\r | |
976 | )\r | |
977 | {\r | |
978 | EFI_STATUS Status;\r | |
979 | CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo;\r | |
980 | UINT32 PciCount;\r | |
981 | UINTN Index;\r | |
982 | EFI_ACPI_DESCRIPTION_HEADER **TableList;\r | |
983 | ACPI_PCI_GENERATOR *Generator;\r | |
8c92a950 | 984 | UINT32 Uid;\r |
e35a746c PG |
985 | \r |
986 | ASSERT (This != NULL);\r | |
987 | ASSERT (AcpiTableInfo != NULL);\r | |
988 | ASSERT (CfgMgrProtocol != NULL);\r | |
989 | ASSERT (Table != NULL);\r | |
990 | ASSERT (TableCount != NULL);\r | |
991 | ASSERT (AcpiTableInfo->TableGeneratorId == This->GeneratorID);\r | |
992 | ASSERT (AcpiTableInfo->AcpiTableSignature == This->AcpiTableSignature);\r | |
993 | \r | |
994 | *TableCount = 0;\r | |
995 | Generator = (ACPI_PCI_GENERATOR *)This;\r | |
996 | \r | |
997 | Status = GetEArmObjPciConfigSpaceInfo (\r | |
998 | CfgMgrProtocol,\r | |
999 | CM_NULL_TOKEN,\r | |
1000 | &PciInfo,\r | |
1001 | &PciCount\r | |
1002 | );\r | |
1003 | if (EFI_ERROR (Status)) {\r | |
1004 | ASSERT (0);\r | |
1005 | return Status;\r | |
1006 | }\r | |
1007 | \r | |
1008 | if (PciCount > MAX_PCI_ROOT_COMPLEXES_SUPPORTED) {\r | |
1009 | DEBUG ((\r | |
1010 | DEBUG_ERROR,\r | |
1011 | "ERROR: SSDT-PCI: Too many Pci root complexes: %d."\r | |
1012 | " Maximum Pci root complexes supported = %d.\n",\r | |
1013 | PciCount,\r | |
1014 | MAX_PCI_ROOT_COMPLEXES_SUPPORTED\r | |
1015 | ));\r | |
1016 | return EFI_INVALID_PARAMETER;\r | |
1017 | }\r | |
1018 | \r | |
1019 | // Allocate a table to store pointers to the SSDT tables.\r | |
1020 | TableList = (EFI_ACPI_DESCRIPTION_HEADER **)\r | |
1021 | AllocateZeroPool (\r | |
1022 | (sizeof (EFI_ACPI_DESCRIPTION_HEADER *) * PciCount)\r | |
1023 | );\r | |
1024 | if (TableList == NULL) {\r | |
1025 | Status = EFI_OUT_OF_RESOURCES;\r | |
1026 | DEBUG ((\r | |
1027 | DEBUG_ERROR,\r | |
1028 | "ERROR: SSDT-PCI: Failed to allocate memory for Table List."\r | |
1029 | " Status = %r\n",\r | |
1030 | Status\r | |
1031 | ));\r | |
1032 | return Status;\r | |
1033 | }\r | |
1034 | \r | |
1035 | // Setup the table list early so that appropriate cleanup\r | |
1036 | // can be done in case of failure.\r | |
1037 | *Table = TableList;\r | |
1038 | \r | |
1039 | for (Index = 0; Index < PciCount; Index++) {\r | |
8c92a950 JB |
1040 | if (PcdGetBool (PcdPciUseSegmentAsUid)) {\r |
1041 | Uid = PciInfo[Index].PciSegmentGroupNumber;\r | |
1042 | if (Uid > MAX_PCI_ROOT_COMPLEXES_SUPPORTED) {\r | |
1043 | DEBUG ((\r | |
1044 | DEBUG_ERROR,\r | |
1045 | "ERROR: SSDT-PCI: Pci root complexes segment number: %d."\r | |
1046 | " Greater than maximum number of Pci root complexes supported = %d.\n",\r | |
1047 | Uid,\r | |
1048 | MAX_PCI_ROOT_COMPLEXES_SUPPORTED\r | |
1049 | ));\r | |
1050 | return EFI_INVALID_PARAMETER;\r | |
1051 | }\r | |
1052 | } else {\r | |
1053 | Uid = Index;\r | |
1054 | }\r | |
1055 | \r | |
e35a746c PG |
1056 | // Build a SSDT table describing the Pci devices.\r |
1057 | Status = BuildSsdtPciTable (\r | |
1058 | Generator,\r | |
1059 | CfgMgrProtocol,\r | |
1060 | AcpiTableInfo,\r | |
1061 | &PciInfo[Index],\r | |
8c92a950 | 1062 | Uid,\r |
e35a746c PG |
1063 | &TableList[Index]\r |
1064 | );\r | |
1065 | if (EFI_ERROR (Status)) {\r | |
1066 | DEBUG ((\r | |
1067 | DEBUG_ERROR,\r | |
1068 | "ERROR: SSDT-PCI: Failed to build associated SSDT table."\r | |
1069 | " Status = %r\n",\r | |
1070 | Status\r | |
1071 | ));\r | |
1072 | goto error_handler;\r | |
1073 | }\r | |
1074 | \r | |
1075 | *TableCount += 1;\r | |
1076 | } // for\r | |
1077 | \r | |
1078 | error_handler:\r | |
1079 | // Note: Table list and Table count have been setup. The\r | |
1080 | // error handler does nothing here as the framework will invoke\r | |
1081 | // FreeSsdtPciTableEx () even on failure.\r | |
1082 | return Status;\r | |
1083 | }\r | |
1084 | \r | |
1085 | /** Free any resources allocated for constructing the tables.\r | |
1086 | \r | |
1087 | @param [in] This Pointer to the ACPI table generator.\r | |
1088 | @param [in] AcpiTableInfo Pointer to the ACPI Table Info.\r | |
1089 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
1090 | Protocol Interface.\r | |
1091 | @param [in, out] Table Pointer to an array of pointers\r | |
1092 | to ACPI Table(s).\r | |
1093 | @param [in] TableCount Number of ACPI table(s).\r | |
1094 | \r | |
1095 | @retval EFI_SUCCESS The resources were freed successfully.\r | |
1096 | @retval EFI_INVALID_PARAMETER The table pointer is NULL or invalid.\r | |
1097 | **/\r | |
1098 | STATIC\r | |
1099 | EFI_STATUS\r | |
1100 | EFIAPI\r | |
1101 | FreeSsdtPciTableEx (\r | |
1102 | IN CONST ACPI_TABLE_GENERATOR *CONST This,\r | |
1103 | IN CONST CM_STD_OBJ_ACPI_TABLE_INFO *CONST AcpiTableInfo,\r | |
1104 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,\r | |
1105 | IN OUT EFI_ACPI_DESCRIPTION_HEADER ***CONST Table,\r | |
1106 | IN CONST UINTN TableCount\r | |
1107 | )\r | |
1108 | {\r | |
1109 | EFI_ACPI_DESCRIPTION_HEADER **TableList;\r | |
1110 | UINTN Index;\r | |
1111 | \r | |
1112 | ASSERT (This != NULL);\r | |
1113 | ASSERT (AcpiTableInfo != NULL);\r | |
1114 | ASSERT (CfgMgrProtocol != NULL);\r | |
1115 | ASSERT (AcpiTableInfo->TableGeneratorId == This->GeneratorID);\r | |
1116 | ASSERT (AcpiTableInfo->AcpiTableSignature == This->AcpiTableSignature);\r | |
1117 | \r | |
1118 | if ((Table == NULL) ||\r | |
1119 | (*Table == NULL) ||\r | |
1120 | (TableCount == 0))\r | |
1121 | {\r | |
1122 | DEBUG ((DEBUG_ERROR, "ERROR: SSDT-PCI: Invalid Table Pointer\n"));\r | |
1123 | return EFI_INVALID_PARAMETER;\r | |
1124 | }\r | |
1125 | \r | |
1126 | TableList = *Table;\r | |
1127 | for (Index = 0; Index < TableCount; Index++) {\r | |
1128 | if ((TableList[Index] != NULL) &&\r | |
1129 | (TableList[Index]->Signature ==\r | |
1130 | EFI_ACPI_6_3_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE))\r | |
1131 | {\r | |
1132 | FreePool (TableList[Index]);\r | |
1133 | } else {\r | |
1134 | DEBUG ((\r | |
1135 | DEBUG_ERROR,\r | |
1136 | "ERROR: SSDT-PCI: Could not free SSDT table at index %d.",\r | |
1137 | Index\r | |
1138 | ));\r | |
1139 | return EFI_INVALID_PARAMETER;\r | |
1140 | }\r | |
1141 | } // for\r | |
1142 | \r | |
1143 | // Free the table list.\r | |
1144 | FreePool (*Table);\r | |
1145 | \r | |
1146 | return EFI_SUCCESS;\r | |
1147 | }\r | |
1148 | \r | |
1149 | /** This macro defines the SSDT Pci Table Generator revision.\r | |
1150 | */\r | |
1151 | #define SSDT_PCI_GENERATOR_REVISION CREATE_REVISION (1, 0)\r | |
1152 | \r | |
1153 | /** The interface for the SSDT Pci Table Generator.\r | |
1154 | */\r | |
1155 | STATIC\r | |
1156 | ACPI_PCI_GENERATOR SsdtPcieGenerator = {\r | |
1157 | // ACPI table generator header\r | |
1158 | {\r | |
1159 | // Generator ID\r | |
1160 | CREATE_STD_ACPI_TABLE_GEN_ID (EStdAcpiTableIdSsdtPciExpress),\r | |
1161 | // Generator Description\r | |
1162 | L"ACPI.STD.SSDT.PCI.GENERATOR",\r | |
1163 | // ACPI Table Signature\r | |
1164 | EFI_ACPI_6_3_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE,\r | |
1165 | // ACPI Table Revision - Unused\r | |
1166 | 0,\r | |
1167 | // Minimum ACPI Table Revision - Unused\r | |
1168 | 0,\r | |
1169 | // Creator ID\r | |
1170 | TABLE_GENERATOR_CREATOR_ID_ARM,\r | |
1171 | // Creator Revision\r | |
1172 | SSDT_PCI_GENERATOR_REVISION,\r | |
1173 | // Build table function. Use the extended version instead.\r | |
1174 | NULL,\r | |
1175 | // Free table function. Use the extended version instead.\r | |
1176 | NULL,\r | |
1177 | // Extended Build table function.\r | |
1178 | BuildSsdtPciTableEx,\r | |
1179 | // Extended free function.\r | |
1180 | FreeSsdtPciTableEx\r | |
1181 | },\r | |
1182 | \r | |
1183 | // Private fields are defined from here.\r | |
1184 | \r | |
e35a746c PG |
1185 | // DeviceTable\r |
1186 | {\r | |
1187 | // Table\r | |
1188 | NULL,\r | |
1189 | // LastIndex\r | |
1190 | 0,\r | |
1191 | // MaxIndex\r | |
1192 | 0\r | |
1193 | },\r | |
1194 | };\r | |
1195 | \r | |
1196 | /** Register the Generator with the ACPI Table Factory.\r | |
1197 | \r | |
1198 | @param [in] ImageHandle The handle to the image.\r | |
1199 | @param [in] SystemTable Pointer to the System Table.\r | |
1200 | \r | |
1201 | @retval EFI_SUCCESS The Generator is registered.\r | |
1202 | @retval EFI_INVALID_PARAMETER A parameter is invalid.\r | |
1203 | @retval EFI_ALREADY_STARTED The Generator for the Table ID\r | |
1204 | is already registered.\r | |
1205 | **/\r | |
1206 | EFI_STATUS\r | |
1207 | EFIAPI\r | |
1208 | AcpiSsdtPcieLibConstructor (\r | |
1209 | IN EFI_HANDLE ImageHandle,\r | |
1210 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1211 | )\r | |
1212 | {\r | |
1213 | EFI_STATUS Status;\r | |
1214 | \r | |
1215 | Status = RegisterAcpiTableGenerator (&SsdtPcieGenerator.Header);\r | |
1216 | DEBUG ((\r | |
1217 | DEBUG_INFO,\r | |
1218 | "SSDT-PCI: Register Generator. Status = %r\n",\r | |
1219 | Status\r | |
1220 | ));\r | |
1221 | ASSERT_EFI_ERROR (Status);\r | |
1222 | return Status;\r | |
1223 | }\r | |
1224 | \r | |
1225 | /** Deregister the Generator from the ACPI Table Factory.\r | |
1226 | \r | |
1227 | @param [in] ImageHandle The handle to the image.\r | |
1228 | @param [in] SystemTable Pointer to the System Table.\r | |
1229 | \r | |
1230 | @retval EFI_SUCCESS The Generator is deregistered.\r | |
1231 | @retval EFI_INVALID_PARAMETER A parameter is invalid.\r | |
1232 | @retval EFI_NOT_FOUND The Generator is not registered.\r | |
1233 | **/\r | |
1234 | EFI_STATUS\r | |
1235 | EFIAPI\r | |
1236 | AcpiSsdtPcieLibDestructor (\r | |
1237 | IN EFI_HANDLE ImageHandle,\r | |
1238 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1239 | )\r | |
1240 | {\r | |
1241 | EFI_STATUS Status;\r | |
1242 | \r | |
1243 | Status = DeregisterAcpiTableGenerator (&SsdtPcieGenerator.Header);\r | |
1244 | DEBUG ((\r | |
1245 | DEBUG_INFO,\r | |
1246 | "SSDT-PCI: Deregister Generator. Status = %r\n",\r | |
1247 | Status\r | |
1248 | ));\r | |
1249 | ASSERT_EFI_ERROR (Status);\r | |
1250 | return Status;\r | |
1251 | }\r |