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a42e6d44 AB |
1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r | |
4 | Copyright (c) 2016, Linaro, Ltd. All rights reserved.<BR>\r | |
5 | \r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include "NonDiscoverablePciDeviceIo.h"\r | |
17 | \r | |
16296a12 AB |
18 | #include <Library/DxeServicesTableLib.h>\r |
19 | \r | |
a42e6d44 AB |
20 | #include <IndustryStandard/Acpi.h>\r |
21 | \r | |
22 | #include <Protocol/PciRootBridgeIo.h>\r | |
23 | \r | |
24 | typedef struct {\r | |
25 | EFI_PHYSICAL_ADDRESS AllocAddress;\r | |
26 | VOID *HostAddress;\r | |
27 | EFI_PCI_IO_PROTOCOL_OPERATION Operation;\r | |
28 | UINTN NumberOfBytes;\r | |
29 | } NON_DISCOVERABLE_PCI_DEVICE_MAP_INFO;\r | |
30 | \r | |
31 | //\r | |
32 | // Get the resource associated with BAR number 'BarIndex'.\r | |
33 | //\r | |
34 | STATIC\r | |
35 | EFI_STATUS\r | |
36 | GetBarResource (\r | |
37 | IN NON_DISCOVERABLE_PCI_DEVICE *Dev,\r | |
38 | IN UINT8 BarIndex,\r | |
39 | OUT EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR **Descriptor\r | |
40 | )\r | |
41 | {\r | |
42 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Desc;\r | |
43 | \r | |
44 | if (BarIndex < Dev->BarOffset) {\r | |
45 | return EFI_NOT_FOUND;\r | |
46 | }\r | |
47 | \r | |
8b78de74 | 48 | BarIndex -= (UINT8)Dev->BarOffset;\r |
a42e6d44 AB |
49 | \r |
50 | for (Desc = Dev->Device->Resources;\r | |
51 | Desc->Desc != ACPI_END_TAG_DESCRIPTOR;\r | |
52 | Desc = (VOID *)((UINT8 *)Desc + Desc->Len + 3)) {\r | |
53 | \r | |
54 | if (BarIndex == 0) {\r | |
55 | *Descriptor = Desc;\r | |
56 | return EFI_SUCCESS;\r | |
57 | }\r | |
58 | \r | |
59 | BarIndex -= 1;\r | |
60 | }\r | |
61 | return EFI_NOT_FOUND;\r | |
62 | }\r | |
63 | \r | |
64 | STATIC\r | |
65 | EFI_STATUS\r | |
8b78de74 | 66 | EFIAPI\r |
a42e6d44 AB |
67 | PciIoPollMem (\r |
68 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
69 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
70 | IN UINT8 BarIndex,\r | |
71 | IN UINT64 Offset,\r | |
72 | IN UINT64 Mask,\r | |
73 | IN UINT64 Value,\r | |
74 | IN UINT64 Delay,\r | |
75 | OUT UINT64 *Result\r | |
76 | )\r | |
77 | {\r | |
78 | ASSERT (FALSE);\r | |
79 | return EFI_UNSUPPORTED;\r | |
80 | }\r | |
81 | \r | |
82 | STATIC\r | |
83 | EFI_STATUS\r | |
8b78de74 | 84 | EFIAPI\r |
a42e6d44 AB |
85 | PciIoPollIo (\r |
86 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
87 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
88 | IN UINT8 BarIndex,\r | |
89 | IN UINT64 Offset,\r | |
90 | IN UINT64 Mask,\r | |
91 | IN UINT64 Value,\r | |
92 | IN UINT64 Delay,\r | |
93 | OUT UINT64 *Result\r | |
94 | )\r | |
95 | {\r | |
96 | ASSERT (FALSE);\r | |
97 | return EFI_UNSUPPORTED;\r | |
98 | }\r | |
99 | \r | |
100 | STATIC\r | |
101 | EFI_STATUS\r | |
8b78de74 | 102 | EFIAPI\r |
a42e6d44 AB |
103 | PciIoMemRW (\r |
104 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
105 | IN UINTN Count,\r | |
106 | IN UINTN DstStride,\r | |
107 | IN VOID *Dst,\r | |
108 | IN UINTN SrcStride,\r | |
109 | OUT CONST VOID *Src\r | |
110 | )\r | |
111 | {\r | |
112 | volatile UINT8 *Dst8;\r | |
113 | volatile UINT16 *Dst16;\r | |
114 | volatile UINT32 *Dst32;\r | |
115 | volatile CONST UINT8 *Src8;\r | |
116 | volatile CONST UINT16 *Src16;\r | |
117 | volatile CONST UINT32 *Src32;\r | |
118 | \r | |
119 | //\r | |
120 | // Loop for each iteration and move the data\r | |
121 | //\r | |
122 | switch (Width & 0x3) {\r | |
123 | case EfiPciWidthUint8:\r | |
124 | Dst8 = (UINT8 *)Dst;\r | |
125 | Src8 = (UINT8 *)Src;\r | |
126 | for (;Count > 0; Count--, Dst8 += DstStride, Src8 += SrcStride) {\r | |
127 | *Dst8 = *Src8;\r | |
128 | }\r | |
129 | break;\r | |
130 | case EfiPciWidthUint16:\r | |
131 | Dst16 = (UINT16 *)Dst;\r | |
132 | Src16 = (UINT16 *)Src;\r | |
133 | for (;Count > 0; Count--, Dst16 += DstStride, Src16 += SrcStride) {\r | |
134 | *Dst16 = *Src16;\r | |
135 | }\r | |
136 | break;\r | |
137 | case EfiPciWidthUint32:\r | |
138 | Dst32 = (UINT32 *)Dst;\r | |
139 | Src32 = (UINT32 *)Src;\r | |
140 | for (;Count > 0; Count--, Dst32 += DstStride, Src32 += SrcStride) {\r | |
141 | *Dst32 = *Src32;\r | |
142 | }\r | |
143 | break;\r | |
144 | default:\r | |
145 | return EFI_INVALID_PARAMETER;\r | |
146 | }\r | |
147 | \r | |
148 | return EFI_SUCCESS;\r | |
149 | }\r | |
150 | \r | |
151 | STATIC\r | |
152 | EFI_STATUS\r | |
8b78de74 | 153 | EFIAPI\r |
a42e6d44 AB |
154 | PciIoMemRead (\r |
155 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
156 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
157 | IN UINT8 BarIndex,\r | |
158 | IN UINT64 Offset,\r | |
159 | IN UINTN Count,\r | |
160 | IN OUT VOID *Buffer\r | |
161 | )\r | |
162 | {\r | |
163 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
164 | UINTN AlignMask;\r | |
165 | VOID *Address;\r | |
166 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Desc;\r | |
167 | EFI_STATUS Status;\r | |
168 | \r | |
169 | if (Buffer == NULL) {\r | |
170 | return EFI_INVALID_PARAMETER;\r | |
171 | }\r | |
172 | \r | |
173 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
174 | \r | |
175 | //\r | |
176 | // Only allow accesses to the BARs we emulate\r | |
177 | //\r | |
178 | Status = GetBarResource (Dev, BarIndex, &Desc);\r | |
179 | if (EFI_ERROR (Status)) {\r | |
180 | return Status;\r | |
181 | }\r | |
182 | \r | |
183 | if (Offset + (Count << (Width & 0x3)) > Desc->AddrLen) {\r | |
184 | return EFI_UNSUPPORTED;\r | |
185 | }\r | |
186 | \r | |
187 | Address = (VOID *)(UINTN)(Desc->AddrRangeMin + Offset);\r | |
188 | AlignMask = (1 << (Width & 0x03)) - 1;\r | |
189 | if ((UINTN)Address & AlignMask) {\r | |
190 | return EFI_INVALID_PARAMETER;\r | |
191 | }\r | |
192 | \r | |
193 | switch (Width) {\r | |
82bf462e HW |
194 | case EfiPciIoWidthUint8:\r |
195 | case EfiPciIoWidthUint16:\r | |
196 | case EfiPciIoWidthUint32:\r | |
197 | case EfiPciIoWidthUint64:\r | |
a42e6d44 AB |
198 | return PciIoMemRW (Width, Count, 1, Buffer, 1, Address);\r |
199 | \r | |
82bf462e HW |
200 | case EfiPciIoWidthFifoUint8:\r |
201 | case EfiPciIoWidthFifoUint16:\r | |
202 | case EfiPciIoWidthFifoUint32:\r | |
203 | case EfiPciIoWidthFifoUint64:\r | |
a42e6d44 AB |
204 | return PciIoMemRW (Width, Count, 1, Buffer, 0, Address);\r |
205 | \r | |
82bf462e HW |
206 | case EfiPciIoWidthFillUint8:\r |
207 | case EfiPciIoWidthFillUint16:\r | |
208 | case EfiPciIoWidthFillUint32:\r | |
209 | case EfiPciIoWidthFillUint64:\r | |
a42e6d44 AB |
210 | return PciIoMemRW (Width, Count, 0, Buffer, 1, Address);\r |
211 | \r | |
212 | default:\r | |
213 | break;\r | |
214 | }\r | |
215 | return EFI_INVALID_PARAMETER;\r | |
216 | }\r | |
217 | \r | |
218 | STATIC\r | |
219 | EFI_STATUS\r | |
8b78de74 | 220 | EFIAPI\r |
a42e6d44 AB |
221 | PciIoMemWrite (\r |
222 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
223 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
224 | IN UINT8 BarIndex,\r | |
225 | IN UINT64 Offset,\r | |
226 | IN UINTN Count,\r | |
227 | IN OUT VOID *Buffer\r | |
228 | )\r | |
229 | {\r | |
230 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
231 | UINTN AlignMask;\r | |
232 | VOID *Address;\r | |
233 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Desc;\r | |
234 | EFI_STATUS Status;\r | |
235 | \r | |
236 | if (Buffer == NULL) {\r | |
237 | return EFI_INVALID_PARAMETER;\r | |
238 | }\r | |
239 | \r | |
240 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
241 | \r | |
242 | //\r | |
243 | // Only allow accesses to the BARs we emulate\r | |
244 | //\r | |
245 | Status = GetBarResource (Dev, BarIndex, &Desc);\r | |
246 | if (EFI_ERROR (Status)) {\r | |
247 | return Status;\r | |
248 | }\r | |
249 | \r | |
250 | if (Offset + (Count << (Width & 0x3)) > Desc->AddrLen) {\r | |
251 | return EFI_UNSUPPORTED;\r | |
252 | }\r | |
253 | \r | |
254 | Address = (VOID *)(UINTN)(Desc->AddrRangeMin + Offset);\r | |
255 | AlignMask = (1 << (Width & 0x03)) - 1;\r | |
256 | if ((UINTN)Address & AlignMask) {\r | |
257 | return EFI_INVALID_PARAMETER;\r | |
258 | }\r | |
259 | \r | |
260 | switch (Width) {\r | |
82bf462e HW |
261 | case EfiPciIoWidthUint8:\r |
262 | case EfiPciIoWidthUint16:\r | |
263 | case EfiPciIoWidthUint32:\r | |
264 | case EfiPciIoWidthUint64:\r | |
a42e6d44 AB |
265 | return PciIoMemRW (Width, Count, 1, Address, 1, Buffer);\r |
266 | \r | |
82bf462e HW |
267 | case EfiPciIoWidthFifoUint8:\r |
268 | case EfiPciIoWidthFifoUint16:\r | |
269 | case EfiPciIoWidthFifoUint32:\r | |
270 | case EfiPciIoWidthFifoUint64:\r | |
a42e6d44 AB |
271 | return PciIoMemRW (Width, Count, 0, Address, 1, Buffer);\r |
272 | \r | |
82bf462e HW |
273 | case EfiPciIoWidthFillUint8:\r |
274 | case EfiPciIoWidthFillUint16:\r | |
275 | case EfiPciIoWidthFillUint32:\r | |
276 | case EfiPciIoWidthFillUint64:\r | |
a42e6d44 AB |
277 | return PciIoMemRW (Width, Count, 1, Address, 0, Buffer);\r |
278 | \r | |
279 | default:\r | |
280 | break;\r | |
281 | }\r | |
282 | return EFI_INVALID_PARAMETER;\r | |
283 | }\r | |
284 | \r | |
285 | STATIC\r | |
286 | EFI_STATUS\r | |
8b78de74 | 287 | EFIAPI\r |
a42e6d44 AB |
288 | PciIoIoRead (\r |
289 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
290 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
291 | IN UINT8 BarIndex,\r | |
292 | IN UINT64 Offset,\r | |
293 | IN UINTN Count,\r | |
294 | IN OUT VOID *Buffer\r | |
295 | )\r | |
296 | {\r | |
297 | ASSERT (FALSE);\r | |
298 | return EFI_UNSUPPORTED;\r | |
299 | }\r | |
300 | \r | |
301 | STATIC\r | |
302 | EFI_STATUS\r | |
8b78de74 | 303 | EFIAPI\r |
a42e6d44 AB |
304 | PciIoIoWrite (\r |
305 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
306 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
307 | IN UINT8 BarIndex,\r | |
308 | IN UINT64 Offset,\r | |
309 | IN UINTN Count,\r | |
310 | IN OUT VOID *Buffer\r | |
311 | )\r | |
312 | {\r | |
313 | ASSERT (FALSE);\r | |
314 | return EFI_UNSUPPORTED;\r | |
315 | }\r | |
316 | \r | |
317 | STATIC\r | |
318 | EFI_STATUS\r | |
8b78de74 | 319 | EFIAPI\r |
a42e6d44 AB |
320 | PciIoPciRead (\r |
321 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
322 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
323 | IN UINT32 Offset,\r | |
324 | IN UINTN Count,\r | |
325 | IN OUT VOID *Buffer\r | |
326 | )\r | |
327 | {\r | |
328 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
329 | VOID *Address;\r | |
330 | UINTN Length;\r | |
331 | \r | |
332 | if (Width < 0 || Width >= EfiPciIoWidthMaximum || Buffer == NULL) {\r | |
333 | return EFI_INVALID_PARAMETER;\r | |
334 | }\r | |
335 | \r | |
336 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
337 | Address = (UINT8 *)&Dev->ConfigSpace + Offset;\r | |
338 | Length = Count << ((UINTN)Width & 0x3);\r | |
339 | \r | |
340 | if (Offset + Length > sizeof (Dev->ConfigSpace)) {\r | |
341 | //\r | |
342 | // Read all zeroes for config space accesses beyond the first\r | |
343 | // 64 bytes\r | |
344 | //\r | |
345 | Length -= sizeof (Dev->ConfigSpace) - Offset;\r | |
346 | ZeroMem ((UINT8 *)Buffer + sizeof (Dev->ConfigSpace) - Offset, Length);\r | |
347 | \r | |
348 | Count -= Length >> ((UINTN)Width & 0x3);\r | |
349 | }\r | |
350 | return PciIoMemRW (Width, Count, 1, Buffer, 1, Address);\r | |
351 | }\r | |
352 | \r | |
353 | STATIC\r | |
354 | EFI_STATUS\r | |
8b78de74 | 355 | EFIAPI\r |
a42e6d44 AB |
356 | PciIoPciWrite (\r |
357 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
358 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
359 | IN UINT32 Offset,\r | |
360 | IN UINTN Count,\r | |
361 | IN OUT VOID *Buffer\r | |
362 | )\r | |
363 | {\r | |
364 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
365 | VOID *Address;\r | |
366 | \r | |
367 | if (Width < 0 || Width >= EfiPciIoWidthMaximum || Buffer == NULL) {\r | |
368 | return EFI_INVALID_PARAMETER;\r | |
369 | }\r | |
370 | \r | |
371 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
372 | Address = (UINT8 *)&Dev->ConfigSpace + Offset;\r | |
373 | \r | |
374 | if (Offset + (Count << ((UINTN)Width & 0x3)) > sizeof (Dev->ConfigSpace)) {\r | |
375 | return EFI_UNSUPPORTED;\r | |
376 | }\r | |
377 | \r | |
378 | return PciIoMemRW (Width, Count, 1, Address, 1, Buffer);\r | |
379 | }\r | |
380 | \r | |
381 | STATIC\r | |
382 | EFI_STATUS\r | |
8b78de74 | 383 | EFIAPI\r |
a42e6d44 AB |
384 | PciIoCopyMem (\r |
385 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
386 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
387 | IN UINT8 DestBarIndex,\r | |
388 | IN UINT64 DestOffset,\r | |
389 | IN UINT8 SrcBarIndex,\r | |
390 | IN UINT64 SrcOffset,\r | |
391 | IN UINTN Count\r | |
392 | )\r | |
393 | {\r | |
394 | ASSERT (FALSE);\r | |
395 | return EFI_UNSUPPORTED;\r | |
396 | }\r | |
397 | \r | |
398 | STATIC\r | |
399 | EFI_STATUS\r | |
8b78de74 | 400 | EFIAPI\r |
a42e6d44 AB |
401 | CoherentPciIoMap (\r |
402 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
403 | IN EFI_PCI_IO_PROTOCOL_OPERATION Operation,\r | |
404 | IN VOID *HostAddress,\r | |
405 | IN OUT UINTN *NumberOfBytes,\r | |
406 | OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,\r | |
407 | OUT VOID **Mapping\r | |
408 | )\r | |
409 | {\r | |
410 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
411 | EFI_STATUS Status;\r | |
412 | NON_DISCOVERABLE_PCI_DEVICE_MAP_INFO *MapInfo;\r | |
413 | \r | |
414 | //\r | |
415 | // If HostAddress exceeds 4 GB, and this device does not support 64-bit DMA\r | |
416 | // addressing, we need to allocate a bounce buffer and copy over the data.\r | |
417 | //\r | |
418 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
419 | if ((Dev->Attributes & EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE) == 0 &&\r | |
420 | (UINTN)HostAddress + *NumberOfBytes > SIZE_4GB) {\r | |
421 | \r | |
422 | //\r | |
423 | // Bounce buffering is not possible for consistent mappings\r | |
424 | //\r | |
425 | if (Operation == EfiPciIoOperationBusMasterCommonBuffer) {\r | |
426 | return EFI_UNSUPPORTED;\r | |
427 | }\r | |
428 | \r | |
429 | MapInfo = AllocatePool (sizeof *MapInfo);\r | |
430 | if (MapInfo == NULL) {\r | |
431 | return EFI_OUT_OF_RESOURCES;\r | |
432 | }\r | |
433 | \r | |
434 | MapInfo->AllocAddress = MAX_UINT32;\r | |
435 | MapInfo->HostAddress = HostAddress;\r | |
436 | MapInfo->Operation = Operation;\r | |
437 | MapInfo->NumberOfBytes = *NumberOfBytes;\r | |
438 | \r | |
439 | Status = gBS->AllocatePages (AllocateMaxAddress, EfiBootServicesData,\r | |
440 | EFI_SIZE_TO_PAGES (MapInfo->NumberOfBytes),\r | |
441 | &MapInfo->AllocAddress);\r | |
442 | if (EFI_ERROR (Status)) {\r | |
443 | //\r | |
444 | // If we fail here, it is likely because the system has no memory below\r | |
445 | // 4 GB to begin with. There is not much we can do about that other than\r | |
446 | // fail the map request.\r | |
447 | //\r | |
448 | FreePool (MapInfo);\r | |
449 | return EFI_DEVICE_ERROR;\r | |
450 | }\r | |
451 | if (Operation == EfiPciIoOperationBusMasterRead) {\r | |
452 | gBS->CopyMem ((VOID *)(UINTN)MapInfo->AllocAddress, HostAddress,\r | |
453 | *NumberOfBytes);\r | |
454 | }\r | |
455 | *DeviceAddress = MapInfo->AllocAddress;\r | |
456 | *Mapping = MapInfo;\r | |
457 | } else {\r | |
458 | *DeviceAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)HostAddress;\r | |
459 | *Mapping = NULL;\r | |
460 | }\r | |
461 | return EFI_SUCCESS;\r | |
462 | }\r | |
463 | \r | |
464 | STATIC\r | |
465 | EFI_STATUS\r | |
8b78de74 | 466 | EFIAPI\r |
a42e6d44 AB |
467 | CoherentPciIoUnmap (\r |
468 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
469 | IN VOID *Mapping\r | |
470 | )\r | |
471 | {\r | |
472 | NON_DISCOVERABLE_PCI_DEVICE_MAP_INFO *MapInfo;\r | |
473 | \r | |
474 | MapInfo = Mapping;\r | |
475 | if (MapInfo != NULL) {\r | |
476 | if (MapInfo->Operation == EfiPciIoOperationBusMasterWrite) {\r | |
477 | gBS->CopyMem (MapInfo->HostAddress, (VOID *)(UINTN)MapInfo->AllocAddress,\r | |
478 | MapInfo->NumberOfBytes);\r | |
479 | }\r | |
480 | gBS->FreePages (MapInfo->AllocAddress,\r | |
481 | EFI_SIZE_TO_PAGES (MapInfo->NumberOfBytes));\r | |
482 | FreePool (MapInfo);\r | |
483 | }\r | |
484 | return EFI_SUCCESS;\r | |
485 | }\r | |
486 | \r | |
487 | STATIC\r | |
488 | EFI_STATUS\r | |
8b78de74 | 489 | EFIAPI\r |
a42e6d44 AB |
490 | CoherentPciIoAllocateBuffer (\r |
491 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
492 | IN EFI_ALLOCATE_TYPE Type,\r | |
493 | IN EFI_MEMORY_TYPE MemoryType,\r | |
494 | IN UINTN Pages,\r | |
495 | OUT VOID **HostAddress,\r | |
496 | IN UINT64 Attributes\r | |
497 | )\r | |
498 | {\r | |
499 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
500 | EFI_PHYSICAL_ADDRESS AllocAddress;\r | |
501 | EFI_ALLOCATE_TYPE AllocType;\r | |
502 | EFI_STATUS Status;\r | |
503 | \r | |
504 | if ((Attributes & ~(EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE |\r | |
505 | EFI_PCI_ATTRIBUTE_MEMORY_CACHED)) != 0) {\r | |
506 | return EFI_UNSUPPORTED;\r | |
507 | }\r | |
508 | \r | |
509 | //\r | |
510 | // Allocate below 4 GB if the dual address cycle attribute has not\r | |
511 | // been set. If the system has no memory available below 4 GB, there\r | |
512 | // is little we can do except propagate the error.\r | |
513 | //\r | |
514 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
515 | if ((Dev->Attributes & EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE) == 0) {\r | |
516 | AllocAddress = MAX_UINT32;\r | |
517 | AllocType = AllocateMaxAddress;\r | |
518 | } else {\r | |
519 | AllocType = AllocateAnyPages;\r | |
520 | }\r | |
521 | \r | |
522 | Status = gBS->AllocatePages (AllocType, MemoryType, Pages, &AllocAddress);\r | |
523 | if (!EFI_ERROR (Status)) {\r | |
524 | *HostAddress = (VOID *)(UINTN)AllocAddress;\r | |
525 | }\r | |
526 | return Status;\r | |
527 | }\r | |
528 | \r | |
529 | STATIC\r | |
530 | EFI_STATUS\r | |
8b78de74 | 531 | EFIAPI\r |
a42e6d44 AB |
532 | CoherentPciIoFreeBuffer (\r |
533 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
534 | IN UINTN Pages,\r | |
535 | IN VOID *HostAddress\r | |
536 | )\r | |
537 | {\r | |
538 | FreePages (HostAddress, Pages);\r | |
539 | return EFI_SUCCESS;\r | |
540 | }\r | |
541 | \r | |
16296a12 AB |
542 | STATIC\r |
543 | EFI_STATUS\r | |
544 | EFIAPI\r | |
545 | NonCoherentPciIoFreeBuffer (\r | |
546 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
547 | IN UINTN Pages,\r | |
548 | IN VOID *HostAddress\r | |
549 | )\r | |
550 | {\r | |
551 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
552 | LIST_ENTRY *Entry;\r | |
553 | EFI_STATUS Status;\r | |
554 | NON_DISCOVERABLE_DEVICE_UNCACHED_ALLOCATION *Alloc;\r | |
555 | BOOLEAN Found;\r | |
556 | \r | |
557 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
558 | \r | |
559 | Found = FALSE;\r | |
560 | \r | |
561 | //\r | |
562 | // Find the uncached allocation list entry associated\r | |
563 | // with this allocation\r | |
564 | //\r | |
565 | for (Entry = Dev->UncachedAllocationList.ForwardLink;\r | |
566 | Entry != &Dev->UncachedAllocationList;\r | |
567 | Entry = Entry->ForwardLink) {\r | |
568 | \r | |
569 | Alloc = BASE_CR (Entry, NON_DISCOVERABLE_DEVICE_UNCACHED_ALLOCATION, List);\r | |
570 | if (Alloc->HostAddress == HostAddress && Alloc->NumPages == Pages) {\r | |
571 | //\r | |
572 | // We are freeing the exact allocation we were given\r | |
573 | // before by AllocateBuffer()\r | |
574 | //\r | |
575 | Found = TRUE;\r | |
576 | break;\r | |
577 | }\r | |
578 | }\r | |
579 | \r | |
580 | if (!Found) {\r | |
581 | ASSERT_EFI_ERROR (EFI_NOT_FOUND);\r | |
582 | return EFI_NOT_FOUND;\r | |
583 | }\r | |
584 | \r | |
585 | RemoveEntryList (&Alloc->List);\r | |
586 | \r | |
587 | Status = gDS->SetMemorySpaceAttributes (\r | |
588 | (EFI_PHYSICAL_ADDRESS)(UINTN)HostAddress,\r | |
589 | EFI_PAGES_TO_SIZE (Pages),\r | |
590 | Alloc->Attributes);\r | |
591 | if (EFI_ERROR (Status)) {\r | |
592 | goto FreeAlloc;\r | |
593 | }\r | |
594 | \r | |
595 | //\r | |
596 | // If we fail to restore the original attributes, it is better to leak the\r | |
597 | // memory than to return it to the heap\r | |
598 | //\r | |
599 | FreePages (HostAddress, Pages);\r | |
600 | \r | |
601 | FreeAlloc:\r | |
602 | FreePool (Alloc);\r | |
603 | return Status;\r | |
604 | }\r | |
605 | \r | |
606 | STATIC\r | |
607 | EFI_STATUS\r | |
608 | EFIAPI\r | |
609 | NonCoherentPciIoAllocateBuffer (\r | |
610 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
611 | IN EFI_ALLOCATE_TYPE Type,\r | |
612 | IN EFI_MEMORY_TYPE MemoryType,\r | |
613 | IN UINTN Pages,\r | |
614 | OUT VOID **HostAddress,\r | |
615 | IN UINT64 Attributes\r | |
616 | )\r | |
617 | {\r | |
618 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
619 | EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;\r | |
620 | EFI_STATUS Status;\r | |
621 | UINT64 MemType;\r | |
622 | NON_DISCOVERABLE_DEVICE_UNCACHED_ALLOCATION *Alloc;\r | |
623 | VOID *AllocAddress;\r | |
624 | \r | |
625 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
626 | \r | |
627 | Status = CoherentPciIoAllocateBuffer (This, Type, MemoryType, Pages,\r | |
628 | &AllocAddress, Attributes);\r | |
629 | if (EFI_ERROR (Status)) {\r | |
630 | return Status;\r | |
631 | }\r | |
632 | \r | |
633 | Status = gDS->GetMemorySpaceDescriptor (\r | |
634 | (EFI_PHYSICAL_ADDRESS)(UINTN)AllocAddress,\r | |
635 | &GcdDescriptor);\r | |
636 | if (EFI_ERROR (Status)) {\r | |
637 | goto FreeBuffer;\r | |
638 | }\r | |
639 | \r | |
640 | if ((GcdDescriptor.Capabilities & (EFI_MEMORY_WC | EFI_MEMORY_UC)) == 0) {\r | |
641 | Status = EFI_UNSUPPORTED;\r | |
642 | goto FreeBuffer;\r | |
643 | }\r | |
644 | \r | |
645 | //\r | |
646 | // Set the preferred memory attributes\r | |
647 | //\r | |
648 | if ((Attributes & EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE) != 0 ||\r | |
649 | (GcdDescriptor.Capabilities & EFI_MEMORY_UC) == 0) {\r | |
650 | //\r | |
651 | // Use write combining if it was requested, or if it is the only\r | |
652 | // type supported by the region.\r | |
653 | //\r | |
654 | MemType = EFI_MEMORY_WC;\r | |
655 | } else {\r | |
656 | MemType = EFI_MEMORY_UC;\r | |
657 | }\r | |
658 | \r | |
659 | Alloc = AllocatePool (sizeof *Alloc);\r | |
660 | if (Alloc == NULL) {\r | |
661 | goto FreeBuffer;\r | |
662 | }\r | |
663 | \r | |
664 | Alloc->HostAddress = AllocAddress;\r | |
665 | Alloc->NumPages = Pages;\r | |
666 | Alloc->Attributes = GcdDescriptor.Attributes;\r | |
667 | \r | |
668 | //\r | |
669 | // Record this allocation in the linked list, so we\r | |
670 | // can restore the memory space attributes later\r | |
671 | //\r | |
672 | InsertHeadList (&Dev->UncachedAllocationList, &Alloc->List);\r | |
673 | \r | |
674 | Status = gDS->SetMemorySpaceAttributes (\r | |
675 | (EFI_PHYSICAL_ADDRESS)(UINTN)AllocAddress,\r | |
676 | EFI_PAGES_TO_SIZE (Pages),\r | |
677 | MemType);\r | |
678 | if (EFI_ERROR (Status)) {\r | |
679 | goto RemoveList;\r | |
680 | }\r | |
681 | \r | |
682 | Status = mCpu->FlushDataCache (\r | |
683 | mCpu,\r | |
684 | (EFI_PHYSICAL_ADDRESS)(UINTN)AllocAddress,\r | |
685 | EFI_PAGES_TO_SIZE (Pages),\r | |
686 | EfiCpuFlushTypeInvalidate);\r | |
687 | if (EFI_ERROR (Status)) {\r | |
688 | goto RemoveList;\r | |
689 | }\r | |
690 | \r | |
691 | *HostAddress = AllocAddress;\r | |
692 | \r | |
693 | return EFI_SUCCESS;\r | |
694 | \r | |
695 | RemoveList:\r | |
696 | RemoveEntryList (&Alloc->List);\r | |
697 | FreePool (Alloc);\r | |
698 | \r | |
699 | FreeBuffer:\r | |
700 | CoherentPciIoFreeBuffer (This, Pages, AllocAddress);\r | |
701 | return Status;\r | |
702 | }\r | |
703 | \r | |
704 | STATIC\r | |
705 | EFI_STATUS\r | |
706 | EFIAPI\r | |
707 | NonCoherentPciIoMap (\r | |
708 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
709 | IN EFI_PCI_IO_PROTOCOL_OPERATION Operation,\r | |
710 | IN VOID *HostAddress,\r | |
711 | IN OUT UINTN *NumberOfBytes,\r | |
712 | OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,\r | |
713 | OUT VOID **Mapping\r | |
714 | )\r | |
715 | {\r | |
716 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
717 | EFI_STATUS Status;\r | |
718 | NON_DISCOVERABLE_PCI_DEVICE_MAP_INFO *MapInfo;\r | |
719 | UINTN AlignMask;\r | |
720 | VOID *AllocAddress;\r | |
721 | EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;\r | |
722 | BOOLEAN Bounce;\r | |
723 | \r | |
724 | MapInfo = AllocatePool (sizeof *MapInfo);\r | |
725 | if (MapInfo == NULL) {\r | |
726 | return EFI_OUT_OF_RESOURCES;\r | |
727 | }\r | |
728 | \r | |
729 | MapInfo->HostAddress = HostAddress;\r | |
730 | MapInfo->Operation = Operation;\r | |
731 | MapInfo->NumberOfBytes = *NumberOfBytes;\r | |
732 | \r | |
733 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
734 | \r | |
735 | //\r | |
736 | // If this device does not support 64-bit DMA addressing, we need to allocate\r | |
737 | // a bounce buffer and copy over the data in case HostAddress >= 4 GB.\r | |
738 | //\r | |
739 | Bounce = ((Dev->Attributes & EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE) == 0 &&\r | |
740 | (UINTN)HostAddress + *NumberOfBytes > SIZE_4GB);\r | |
741 | \r | |
742 | if (!Bounce) {\r | |
743 | switch (Operation) {\r | |
744 | case EfiPciIoOperationBusMasterRead:\r | |
745 | case EfiPciIoOperationBusMasterWrite:\r | |
746 | //\r | |
747 | // For streaming DMA, it is sufficient if the buffer is aligned to\r | |
748 | // the CPUs DMA buffer alignment.\r | |
749 | //\r | |
750 | AlignMask = mCpu->DmaBufferAlignment - 1;\r | |
751 | if ((((UINTN) HostAddress | *NumberOfBytes) & AlignMask) == 0) {\r | |
752 | break;\r | |
753 | }\r | |
754 | // fall through\r | |
755 | \r | |
756 | case EfiPciIoOperationBusMasterCommonBuffer:\r | |
757 | //\r | |
758 | // Check whether the host address refers to an uncached mapping.\r | |
759 | //\r | |
760 | Status = gDS->GetMemorySpaceDescriptor (\r | |
761 | (EFI_PHYSICAL_ADDRESS)(UINTN)HostAddress,\r | |
762 | &GcdDescriptor);\r | |
763 | if (EFI_ERROR (Status) ||\r | |
764 | (GcdDescriptor.Attributes & (EFI_MEMORY_WB|EFI_MEMORY_WT)) != 0) {\r | |
765 | Bounce = TRUE;\r | |
766 | }\r | |
767 | break;\r | |
768 | \r | |
769 | default:\r | |
770 | ASSERT (FALSE);\r | |
771 | }\r | |
772 | }\r | |
773 | \r | |
774 | if (Bounce) {\r | |
775 | if (Operation == EfiPciIoOperationBusMasterCommonBuffer) {\r | |
776 | Status = EFI_DEVICE_ERROR;\r | |
777 | goto FreeMapInfo;\r | |
778 | }\r | |
779 | \r | |
780 | Status = NonCoherentPciIoAllocateBuffer (This, AllocateAnyPages,\r | |
781 | EfiBootServicesData, EFI_SIZE_TO_PAGES (MapInfo->NumberOfBytes),\r | |
782 | &AllocAddress, EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE);\r | |
783 | if (EFI_ERROR (Status)) {\r | |
784 | goto FreeMapInfo;\r | |
785 | }\r | |
786 | MapInfo->AllocAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocAddress;\r | |
787 | if (Operation == EfiPciIoOperationBusMasterRead) {\r | |
788 | gBS->CopyMem (AllocAddress, HostAddress, *NumberOfBytes);\r | |
789 | }\r | |
790 | *DeviceAddress = MapInfo->AllocAddress;\r | |
791 | } else {\r | |
792 | MapInfo->AllocAddress = 0;\r | |
793 | *DeviceAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)HostAddress;\r | |
794 | \r | |
795 | //\r | |
796 | // We are not using a bounce buffer: the mapping is sufficiently\r | |
797 | // aligned to allow us to simply flush the caches. Note that cleaning\r | |
798 | // the caches is necessary for both data directions:\r | |
799 | // - for bus master read, we want the latest data to be present\r | |
800 | // in main memory\r | |
801 | // - for bus master write, we don't want any stale dirty cachelines that\r | |
802 | // may be written back unexpectedly, and clobber the data written to\r | |
803 | // main memory by the device.\r | |
804 | //\r | |
805 | mCpu->FlushDataCache (mCpu, (EFI_PHYSICAL_ADDRESS)(UINTN)HostAddress,\r | |
806 | *NumberOfBytes, EfiCpuFlushTypeWriteBack);\r | |
807 | }\r | |
808 | \r | |
809 | *Mapping = MapInfo;\r | |
810 | return EFI_SUCCESS;\r | |
811 | \r | |
812 | FreeMapInfo:\r | |
813 | FreePool (MapInfo);\r | |
814 | \r | |
815 | return Status;\r | |
816 | }\r | |
817 | \r | |
818 | STATIC\r | |
819 | EFI_STATUS\r | |
820 | EFIAPI\r | |
821 | NonCoherentPciIoUnmap (\r | |
822 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
823 | IN VOID *Mapping\r | |
824 | )\r | |
825 | {\r | |
826 | NON_DISCOVERABLE_PCI_DEVICE_MAP_INFO *MapInfo;\r | |
827 | \r | |
828 | if (Mapping == NULL) {\r | |
829 | return EFI_DEVICE_ERROR;\r | |
830 | }\r | |
831 | \r | |
832 | MapInfo = Mapping;\r | |
833 | if (MapInfo->AllocAddress != 0) {\r | |
834 | //\r | |
835 | // We are using a bounce buffer: copy back the data if necessary,\r | |
836 | // and free the buffer.\r | |
837 | //\r | |
838 | if (MapInfo->Operation == EfiPciIoOperationBusMasterWrite) {\r | |
839 | gBS->CopyMem (MapInfo->HostAddress, (VOID *)(UINTN)MapInfo->AllocAddress,\r | |
840 | MapInfo->NumberOfBytes);\r | |
841 | }\r | |
842 | NonCoherentPciIoFreeBuffer (This,\r | |
843 | EFI_SIZE_TO_PAGES (MapInfo->NumberOfBytes),\r | |
844 | (VOID *)(UINTN)MapInfo->AllocAddress);\r | |
845 | } else {\r | |
846 | //\r | |
847 | // We are *not* using a bounce buffer: if this is a bus master write,\r | |
848 | // we have to invalidate the caches so the CPU will see the uncached\r | |
849 | // data written by the device.\r | |
850 | //\r | |
851 | if (MapInfo->Operation == EfiPciIoOperationBusMasterWrite) {\r | |
852 | mCpu->FlushDataCache (mCpu,\r | |
853 | (EFI_PHYSICAL_ADDRESS)(UINTN)MapInfo->HostAddress,\r | |
854 | MapInfo->NumberOfBytes, EfiCpuFlushTypeInvalidate);\r | |
855 | }\r | |
856 | }\r | |
857 | FreePool (MapInfo);\r | |
858 | return EFI_SUCCESS;\r | |
859 | }\r | |
a42e6d44 AB |
860 | \r |
861 | STATIC\r | |
862 | EFI_STATUS\r | |
8b78de74 | 863 | EFIAPI\r |
a42e6d44 AB |
864 | PciIoFlush (\r |
865 | IN EFI_PCI_IO_PROTOCOL *This\r | |
866 | )\r | |
867 | {\r | |
868 | return EFI_SUCCESS;\r | |
869 | }\r | |
870 | \r | |
871 | STATIC\r | |
872 | EFI_STATUS\r | |
8b78de74 | 873 | EFIAPI\r |
a42e6d44 AB |
874 | PciIoGetLocation (\r |
875 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
876 | OUT UINTN *SegmentNumber,\r | |
877 | OUT UINTN *BusNumber,\r | |
878 | OUT UINTN *DeviceNumber,\r | |
879 | OUT UINTN *FunctionNumber\r | |
880 | )\r | |
881 | {\r | |
882 | if (SegmentNumber == NULL ||\r | |
883 | BusNumber == NULL ||\r | |
884 | DeviceNumber == NULL ||\r | |
885 | FunctionNumber == NULL) {\r | |
886 | return EFI_INVALID_PARAMETER;\r | |
887 | }\r | |
888 | \r | |
889 | *SegmentNumber = 0;\r | |
890 | *BusNumber = 0xff;\r | |
891 | *DeviceNumber = 0;\r | |
892 | *FunctionNumber = 0;\r | |
893 | \r | |
894 | return EFI_SUCCESS;\r | |
895 | }\r | |
896 | \r | |
897 | STATIC\r | |
898 | EFI_STATUS\r | |
8b78de74 | 899 | EFIAPI\r |
a42e6d44 AB |
900 | PciIoAttributes (\r |
901 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
902 | IN EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation,\r | |
903 | IN UINT64 Attributes,\r | |
904 | OUT UINT64 *Result OPTIONAL\r | |
905 | )\r | |
906 | {\r | |
907 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
908 | BOOLEAN Enable;\r | |
909 | \r | |
910 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
911 | \r | |
912 | Enable = FALSE;\r | |
913 | switch (Operation) {\r | |
914 | case EfiPciIoAttributeOperationGet:\r | |
915 | if (Result == NULL) {\r | |
916 | return EFI_INVALID_PARAMETER;\r | |
917 | }\r | |
918 | *Result = Dev->Attributes;\r | |
919 | break;\r | |
920 | \r | |
921 | case EfiPciIoAttributeOperationSupported:\r | |
922 | if (Result == NULL) {\r | |
923 | return EFI_INVALID_PARAMETER;\r | |
924 | }\r | |
925 | *Result = EFI_PCI_DEVICE_ENABLE | EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE;\r | |
926 | break;\r | |
927 | \r | |
928 | case EfiPciIoAttributeOperationEnable:\r | |
929 | Attributes |= Dev->Attributes;\r | |
930 | case EfiPciIoAttributeOperationSet:\r | |
931 | Enable = ((~Dev->Attributes & Attributes) & EFI_PCI_DEVICE_ENABLE) != 0;\r | |
932 | Dev->Attributes = Attributes;\r | |
933 | break;\r | |
934 | \r | |
935 | case EfiPciIoAttributeOperationDisable:\r | |
936 | Dev->Attributes &= ~Attributes;\r | |
937 | break;\r | |
938 | \r | |
939 | default:\r | |
940 | return EFI_INVALID_PARAMETER;\r | |
941 | };\r | |
942 | \r | |
943 | //\r | |
944 | // If we're setting any of the EFI_PCI_DEVICE_ENABLE bits, perform\r | |
945 | // the device specific initialization now.\r | |
946 | //\r | |
947 | if (Enable && !Dev->Enabled && Dev->Device->Initialize != NULL) {\r | |
948 | Dev->Device->Initialize (Dev->Device);\r | |
949 | Dev->Enabled = TRUE;\r | |
950 | }\r | |
951 | return EFI_SUCCESS;\r | |
952 | }\r | |
953 | \r | |
954 | STATIC\r | |
955 | EFI_STATUS\r | |
8b78de74 | 956 | EFIAPI\r |
a42e6d44 AB |
957 | PciIoGetBarAttributes (\r |
958 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
959 | IN UINT8 BarIndex,\r | |
960 | OUT UINT64 *Supports OPTIONAL,\r | |
961 | OUT VOID **Resources OPTIONAL\r | |
962 | )\r | |
963 | {\r | |
964 | NON_DISCOVERABLE_PCI_DEVICE *Dev;\r | |
965 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor, *BarDesc;\r | |
966 | EFI_ACPI_END_TAG_DESCRIPTOR *End;\r | |
967 | EFI_STATUS Status;\r | |
968 | \r | |
969 | if (Supports == NULL && Resources == NULL) {\r | |
970 | return EFI_INVALID_PARAMETER;\r | |
971 | }\r | |
972 | \r | |
973 | Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);\r | |
974 | \r | |
975 | Status = GetBarResource (Dev, BarIndex, &BarDesc);\r | |
976 | if (EFI_ERROR (Status)) {\r | |
977 | return Status;\r | |
978 | }\r | |
979 | \r | |
980 | //\r | |
981 | // Don't expose any configurable attributes for our emulated BAR\r | |
982 | //\r | |
983 | if (Supports != NULL) {\r | |
984 | *Supports = 0;\r | |
985 | }\r | |
986 | \r | |
987 | if (Resources != NULL) {\r | |
988 | Descriptor = AllocatePool (sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) +\r | |
989 | sizeof (EFI_ACPI_END_TAG_DESCRIPTOR));\r | |
990 | if (Descriptor == NULL) {\r | |
991 | return EFI_OUT_OF_RESOURCES;\r | |
992 | }\r | |
993 | \r | |
994 | CopyMem (Descriptor, BarDesc, sizeof *Descriptor);\r | |
995 | \r | |
996 | End = (EFI_ACPI_END_TAG_DESCRIPTOR *) (Descriptor + 1);\r | |
997 | End->Desc = ACPI_END_TAG_DESCRIPTOR;\r | |
998 | End->Checksum = 0;\r | |
999 | \r | |
1000 | *Resources = Descriptor;\r | |
1001 | }\r | |
1002 | return EFI_SUCCESS;\r | |
1003 | }\r | |
1004 | \r | |
1005 | STATIC\r | |
1006 | EFI_STATUS\r | |
8b78de74 | 1007 | EFIAPI\r |
a42e6d44 AB |
1008 | PciIoSetBarAttributes (\r |
1009 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
1010 | IN UINT64 Attributes,\r | |
1011 | IN UINT8 BarIndex,\r | |
1012 | IN OUT UINT64 *Offset,\r | |
1013 | IN OUT UINT64 *Length\r | |
1014 | )\r | |
1015 | {\r | |
1016 | ASSERT (FALSE);\r | |
1017 | return EFI_UNSUPPORTED;\r | |
1018 | }\r | |
1019 | \r | |
1020 | STATIC CONST EFI_PCI_IO_PROTOCOL PciIoTemplate =\r | |
1021 | {\r | |
1022 | PciIoPollMem,\r | |
1023 | PciIoPollIo,\r | |
1024 | { PciIoMemRead, PciIoMemWrite },\r | |
1025 | { PciIoIoRead, PciIoIoWrite },\r | |
1026 | { PciIoPciRead, PciIoPciWrite },\r | |
1027 | PciIoCopyMem,\r | |
1028 | CoherentPciIoMap,\r | |
1029 | CoherentPciIoUnmap,\r | |
1030 | CoherentPciIoAllocateBuffer,\r | |
1031 | CoherentPciIoFreeBuffer,\r | |
1032 | PciIoFlush,\r | |
1033 | PciIoGetLocation,\r | |
1034 | PciIoAttributes,\r | |
1035 | PciIoGetBarAttributes,\r | |
1036 | PciIoSetBarAttributes,\r | |
1037 | 0,\r | |
1038 | 0\r | |
1039 | };\r | |
1040 | \r | |
1041 | VOID\r | |
1042 | InitializePciIoProtocol (\r | |
1043 | NON_DISCOVERABLE_PCI_DEVICE *Dev\r | |
1044 | )\r | |
1045 | {\r | |
1046 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Desc;\r | |
1047 | INTN Idx;\r | |
1048 | \r | |
16296a12 AB |
1049 | InitializeListHead (&Dev->UncachedAllocationList);\r |
1050 | \r | |
a42e6d44 AB |
1051 | Dev->ConfigSpace.Hdr.VendorId = PCI_ID_VENDOR_UNKNOWN;\r |
1052 | Dev->ConfigSpace.Hdr.DeviceId = PCI_ID_DEVICE_DONTCARE;\r | |
1053 | \r | |
1054 | // Copy protocol structure\r | |
1055 | CopyMem(&Dev->PciIo, &PciIoTemplate, sizeof PciIoTemplate);\r | |
1056 | \r | |
16296a12 AB |
1057 | if (Dev->Device->DmaType == NonDiscoverableDeviceDmaTypeNonCoherent) {\r |
1058 | Dev->PciIo.AllocateBuffer = NonCoherentPciIoAllocateBuffer;\r | |
1059 | Dev->PciIo.FreeBuffer = NonCoherentPciIoFreeBuffer;\r | |
1060 | Dev->PciIo.Map = NonCoherentPciIoMap;\r | |
1061 | Dev->PciIo.Unmap = NonCoherentPciIoUnmap;\r | |
1062 | }\r | |
1063 | \r | |
a42e6d44 AB |
1064 | if (CompareGuid (Dev->Device->Type, &gEdkiiNonDiscoverableAhciDeviceGuid)) {\r |
1065 | Dev->ConfigSpace.Hdr.ClassCode[0] = PCI_IF_MASS_STORAGE_AHCI;\r | |
1066 | Dev->ConfigSpace.Hdr.ClassCode[1] = PCI_CLASS_MASS_STORAGE_SATADPA;\r | |
1067 | Dev->ConfigSpace.Hdr.ClassCode[2] = PCI_CLASS_MASS_STORAGE;\r | |
1068 | Dev->BarOffset = 5;\r | |
1069 | } else if (CompareGuid (Dev->Device->Type,\r | |
1070 | &gEdkiiNonDiscoverableEhciDeviceGuid)) {\r | |
1071 | Dev->ConfigSpace.Hdr.ClassCode[0] = PCI_IF_EHCI;\r | |
1072 | Dev->ConfigSpace.Hdr.ClassCode[1] = PCI_CLASS_SERIAL_USB;\r | |
1073 | Dev->ConfigSpace.Hdr.ClassCode[2] = PCI_CLASS_SERIAL;\r | |
1074 | Dev->BarOffset = 0;\r | |
1075 | } else if (CompareGuid (Dev->Device->Type,\r | |
1076 | &gEdkiiNonDiscoverableNvmeDeviceGuid)) {\r | |
1077 | Dev->ConfigSpace.Hdr.ClassCode[0] = 0x2; // PCI_IF_NVMHCI\r | |
1078 | Dev->ConfigSpace.Hdr.ClassCode[1] = 0x8; // PCI_CLASS_MASS_STORAGE_NVM\r | |
1079 | Dev->ConfigSpace.Hdr.ClassCode[2] = PCI_CLASS_MASS_STORAGE;\r | |
1080 | Dev->BarOffset = 0;\r | |
1081 | } else if (CompareGuid (Dev->Device->Type,\r | |
1082 | &gEdkiiNonDiscoverableOhciDeviceGuid)) {\r | |
1083 | Dev->ConfigSpace.Hdr.ClassCode[0] = PCI_IF_OHCI;\r | |
1084 | Dev->ConfigSpace.Hdr.ClassCode[1] = PCI_CLASS_SERIAL_USB;\r | |
1085 | Dev->ConfigSpace.Hdr.ClassCode[2] = PCI_CLASS_SERIAL;\r | |
1086 | Dev->BarOffset = 0;\r | |
1087 | } else if (CompareGuid (Dev->Device->Type,\r | |
1088 | &gEdkiiNonDiscoverableSdhciDeviceGuid)) {\r | |
1089 | Dev->ConfigSpace.Hdr.ClassCode[0] = 0x0; // don't care\r | |
1090 | Dev->ConfigSpace.Hdr.ClassCode[1] = PCI_SUBCLASS_SD_HOST_CONTROLLER;\r | |
1091 | Dev->ConfigSpace.Hdr.ClassCode[2] = PCI_CLASS_SYSTEM_PERIPHERAL;\r | |
1092 | Dev->BarOffset = 0;\r | |
1093 | } else if (CompareGuid (Dev->Device->Type,\r | |
1094 | &gEdkiiNonDiscoverableXhciDeviceGuid)) {\r | |
1095 | Dev->ConfigSpace.Hdr.ClassCode[0] = PCI_IF_XHCI;\r | |
1096 | Dev->ConfigSpace.Hdr.ClassCode[1] = PCI_CLASS_SERIAL_USB;\r | |
1097 | Dev->ConfigSpace.Hdr.ClassCode[2] = PCI_CLASS_SERIAL;\r | |
1098 | Dev->BarOffset = 0;\r | |
1099 | } else if (CompareGuid (Dev->Device->Type,\r | |
1100 | &gEdkiiNonDiscoverableUhciDeviceGuid)) {\r | |
1101 | Dev->ConfigSpace.Hdr.ClassCode[0] = PCI_IF_UHCI;\r | |
1102 | Dev->ConfigSpace.Hdr.ClassCode[1] = PCI_CLASS_SERIAL_USB;\r | |
1103 | Dev->ConfigSpace.Hdr.ClassCode[2] = PCI_CLASS_SERIAL;\r | |
1104 | Dev->BarOffset = 0;\r | |
1105 | } else if (CompareGuid (Dev->Device->Type,\r | |
1106 | &gEdkiiNonDiscoverableUfsDeviceGuid)) {\r | |
1107 | Dev->ConfigSpace.Hdr.ClassCode[0] = 0x0; // don't care\r | |
1108 | Dev->ConfigSpace.Hdr.ClassCode[1] = 0x9; // UFS controller subclass;\r | |
1109 | Dev->ConfigSpace.Hdr.ClassCode[2] = PCI_CLASS_MASS_STORAGE;\r | |
1110 | Dev->BarOffset = 0;\r | |
1111 | } else {\r | |
1112 | ASSERT_EFI_ERROR (EFI_INVALID_PARAMETER);\r | |
1113 | }\r | |
1114 | \r | |
1115 | //\r | |
1116 | // Iterate over the resources to populate the virtual BARs\r | |
1117 | //\r | |
1118 | Idx = Dev->BarOffset;\r | |
1119 | for (Desc = Dev->Device->Resources, Dev->BarCount = 0;\r | |
1120 | Desc->Desc != ACPI_END_TAG_DESCRIPTOR;\r | |
1121 | Desc = (VOID *)((UINT8 *)Desc + Desc->Len + 3)) {\r | |
1122 | \r | |
1123 | ASSERT (Desc->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR);\r | |
1124 | ASSERT (Desc->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM);\r | |
1125 | \r | |
1126 | if (Idx >= PCI_MAX_BARS ||\r | |
1127 | (Idx == PCI_MAX_BARS - 1 && Desc->AddrSpaceGranularity == 64)) {\r | |
1128 | DEBUG ((DEBUG_ERROR,\r | |
1129 | "%a: resource count exceeds number of emulated BARs\n",\r | |
1130 | __FUNCTION__));\r | |
1131 | ASSERT (FALSE);\r | |
1132 | break;\r | |
1133 | }\r | |
1134 | \r | |
1135 | Dev->ConfigSpace.Device.Bar[Idx] = (UINT32)Desc->AddrRangeMin;\r | |
1136 | Dev->BarCount++;\r | |
1137 | \r | |
1138 | if (Desc->AddrSpaceGranularity == 64) {\r | |
1139 | Dev->ConfigSpace.Device.Bar[Idx] |= 0x4;\r | |
1140 | Dev->ConfigSpace.Device.Bar[++Idx] = (UINT32)RShiftU64 (\r | |
1141 | Desc->AddrRangeMin, 32);\r | |
1142 | }\r | |
1143 | }\r | |
1144 | }\r |