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965626c9 A |
1 | /** @file\r |
2 | Debug version of the UncachedMemoryAllocation lib that uses the VirtualUncachedPages\r | |
3 | protocol, produced by the DXE CPU driver, to produce debuggable uncached memory buffers.\r | |
4 | \r | |
5 | The DMA rules for EFI contain the concept of a PCI (DMA master) address for memory and\r | |
6 | a CPU (C code) address for the memory buffer that don't have to be the same. There seem to\r | |
7 | be common errors out there with folks mixing up the two addresses. This library causes\r | |
8 | the PCI (DMA master) address to not be mapped into system memory so if the CPU (C code)\r | |
9 | uses the wrong pointer it will generate a page fault. The CPU (C code) version of the buffer\r | |
10 | has a virtual address that does not match the physical address. The virtual address has\r | |
11 | PcdArmUncachedMemoryMask ored into the physical address.\r | |
12 | \r | |
13 | Copyright (c) 2008-2010, Apple Inc. All rights reserved.\r | |
14 | \r | |
15 | All rights reserved. This program and the accompanying materials\r | |
16 | are licensed and made available under the terms and conditions of the BSD License\r | |
17 | which accompanies this distribution. The full text of the license may be found at\r | |
18 | http://opensource.org/licenses/bsd-license.php\r | |
19 | \r | |
20 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
21 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
22 | \r | |
23 | **/\r | |
24 | \r | |
25 | #include <Library/BaseLib.h>\r | |
26 | #include <Library/BaseMemoryLib.h>\r | |
27 | #include <Library/MemoryAllocationLib.h>\r | |
28 | #include <Library/DebugLib.h>\r | |
29 | #include <Library/UefiBootServicesTableLib.h>\r | |
30 | #include <Library/UncachedMemoryAllocationLib.h>\r | |
31 | #include <Library/PcdLib.h>\r | |
32 | #include <Library/ArmLib.h>\r | |
33 | \r | |
34 | #include <Protocol/Cpu.h>\r | |
35 | #include <Protocol/VirtualUncachedPages.h>\r | |
36 | \r | |
37 | VOID *\r | |
38 | UncachedInternalAllocatePages (\r | |
39 | IN EFI_MEMORY_TYPE MemoryType, \r | |
40 | IN UINTN Pages\r | |
41 | );\r | |
42 | \r | |
43 | VOID *\r | |
44 | UncachedInternalAllocateAlignedPages (\r | |
45 | IN EFI_MEMORY_TYPE MemoryType, \r | |
46 | IN UINTN Pages,\r | |
47 | IN UINTN Alignment\r | |
48 | );\r | |
49 | \r | |
50 | \r | |
51 | \r | |
f659880b | 52 | EFI_CPU_ARCH_PROTOCOL *gDebugUncachedCpu;\r |
965626c9 A |
53 | VIRTUAL_UNCACHED_PAGES_PROTOCOL *gVirtualUncachedPages;\r |
54 | \r | |
55 | //\r | |
56 | // Assume all of memory has the same cache attributes, unless we do our magic\r | |
57 | //\r | |
58 | UINT64 gAttributes;\r | |
59 | \r | |
60 | typedef struct {\r | |
61 | VOID *Buffer;\r | |
62 | VOID *Allocation;\r | |
63 | UINTN Pages;\r | |
64 | LIST_ENTRY Link;\r | |
65 | } FREE_PAGE_NODE;\r | |
66 | \r | |
67 | LIST_ENTRY mPageList = INITIALIZE_LIST_HEAD_VARIABLE (mPageList);\r | |
68 | \r | |
69 | VOID\r | |
70 | AddPagesToList (\r | |
71 | IN VOID *Buffer,\r | |
72 | IN VOID *Allocation,\r | |
73 | UINTN Pages\r | |
74 | )\r | |
75 | {\r | |
76 | FREE_PAGE_NODE *NewNode;\r | |
77 | \r | |
78 | NewNode = AllocatePool (sizeof (LIST_ENTRY));\r | |
79 | if (NewNode == NULL) {\r | |
80 | ASSERT (FALSE);\r | |
81 | return;\r | |
82 | }\r | |
83 | \r | |
84 | NewNode->Buffer = Buffer;\r | |
85 | NewNode->Allocation = Allocation;\r | |
883b666e | 86 | NewNode->Pages = Pages;\r |
87 | \r | |
965626c9 A |
88 | InsertTailList (&mPageList, &NewNode->Link);\r |
89 | }\r | |
90 | \r | |
91 | \r | |
92 | VOID\r | |
93 | RemovePagesFromList (\r | |
94 | IN VOID *Buffer,\r | |
95 | OUT VOID **Allocation,\r | |
96 | OUT UINTN *Pages\r | |
97 | )\r | |
98 | {\r | |
99 | LIST_ENTRY *Link;\r | |
100 | FREE_PAGE_NODE *OldNode;\r | |
101 | \r | |
102 | *Allocation = NULL;\r | |
103 | *Pages = 0;\r | |
104 | \r | |
105 | for (Link = mPageList.ForwardLink; Link != &mPageList; Link = Link->ForwardLink) {\r | |
106 | OldNode = BASE_CR (Link, FREE_PAGE_NODE, Link);\r | |
107 | if (OldNode->Buffer == Buffer) {\r | |
108 | *Allocation = OldNode->Allocation;\r | |
109 | *Pages = OldNode->Pages;\r | |
110 | \r | |
111 | RemoveEntryList (&OldNode->Link);\r | |
112 | FreePool (OldNode);\r | |
113 | return;\r | |
114 | }\r | |
115 | }\r | |
116 | \r | |
117 | return;\r | |
118 | }\r | |
119 | \r | |
120 | \r | |
121 | \r | |
122 | EFI_PHYSICAL_ADDRESS\r | |
123 | ConvertToPhysicalAddress (\r | |
124 | IN VOID *VirtualAddress\r | |
125 | )\r | |
126 | {\r | |
127 | UINTN UncachedMemoryMask = (UINTN)PcdGet64 (PcdArmUncachedMemoryMask);\r | |
128 | UINTN PhysicalAddress;\r | |
129 | \r | |
130 | PhysicalAddress = (UINTN)VirtualAddress & ~UncachedMemoryMask;\r | |
131 | \r | |
132 | return (EFI_PHYSICAL_ADDRESS)PhysicalAddress;\r | |
133 | }\r | |
134 | \r | |
135 | \r | |
136 | VOID *\r | |
137 | ConvertToUncachedAddress (\r | |
138 | IN VOID *Address\r | |
139 | )\r | |
140 | {\r | |
141 | UINTN UncachedMemoryMask = (UINTN)PcdGet64 (PcdArmUncachedMemoryMask);\r | |
142 | UINTN UncachedAddress;\r | |
143 | \r | |
144 | UncachedAddress = (UINTN)Address | UncachedMemoryMask;\r | |
145 | \r | |
146 | return (VOID *)UncachedAddress;\r | |
147 | }\r | |
148 | \r | |
149 | \r | |
150 | \r | |
151 | VOID *\r | |
152 | UncachedInternalAllocatePages (\r | |
153 | IN EFI_MEMORY_TYPE MemoryType, \r | |
154 | IN UINTN Pages\r | |
155 | )\r | |
156 | {\r | |
157 | return UncachedInternalAllocateAlignedPages (MemoryType, Pages, EFI_PAGE_SIZE);\r | |
158 | }\r | |
159 | \r | |
160 | \r | |
161 | VOID *\r | |
162 | EFIAPI\r | |
163 | UncachedAllocatePages (\r | |
164 | IN UINTN Pages\r | |
165 | )\r | |
166 | {\r | |
167 | return UncachedInternalAllocatePages (EfiBootServicesData, Pages);\r | |
168 | }\r | |
169 | \r | |
170 | VOID *\r | |
171 | EFIAPI\r | |
172 | UncachedAllocateRuntimePages (\r | |
173 | IN UINTN Pages\r | |
174 | )\r | |
175 | {\r | |
176 | return UncachedInternalAllocatePages (EfiRuntimeServicesData, Pages);\r | |
177 | }\r | |
178 | \r | |
179 | VOID *\r | |
180 | EFIAPI\r | |
181 | UncachedAllocateReservedPages (\r | |
182 | IN UINTN Pages\r | |
183 | )\r | |
184 | {\r | |
185 | return UncachedInternalAllocatePages (EfiReservedMemoryType, Pages);\r | |
186 | }\r | |
187 | \r | |
188 | \r | |
189 | \r | |
190 | VOID\r | |
191 | EFIAPI\r | |
192 | UncachedFreePages (\r | |
193 | IN VOID *Buffer,\r | |
194 | IN UINTN Pages\r | |
195 | )\r | |
196 | {\r | |
197 | UncachedFreeAlignedPages (Buffer, Pages);\r | |
198 | return;\r | |
199 | }\r | |
200 | \r | |
201 | \r | |
202 | VOID *\r | |
203 | UncachedInternalAllocateAlignedPages (\r | |
204 | IN EFI_MEMORY_TYPE MemoryType, \r | |
205 | IN UINTN Pages,\r | |
206 | IN UINTN Alignment\r | |
207 | )\r | |
208 | {\r | |
209 | EFI_STATUS Status;\r | |
210 | EFI_PHYSICAL_ADDRESS Memory;\r | |
211 | EFI_PHYSICAL_ADDRESS AlignedMemory;\r | |
212 | UINTN AlignmentMask;\r | |
213 | UINTN UnalignedPages;\r | |
214 | UINTN RealPages;\r | |
215 | \r | |
216 | //\r | |
217 | // Alignment must be a power of two or zero.\r | |
218 | //\r | |
219 | ASSERT ((Alignment & (Alignment - 1)) == 0);\r | |
220 | \r | |
221 | if (Pages == 0) {\r | |
222 | return NULL;\r | |
223 | }\r | |
224 | if (Alignment > EFI_PAGE_SIZE) {\r | |
225 | //\r | |
226 | // Caculate the total number of pages since alignment is larger than page size.\r | |
227 | //\r | |
228 | AlignmentMask = Alignment - 1;\r | |
229 | RealPages = Pages + EFI_SIZE_TO_PAGES (Alignment);\r | |
230 | //\r | |
231 | // Make sure that Pages plus EFI_SIZE_TO_PAGES (Alignment) does not overflow.\r | |
232 | //\r | |
233 | ASSERT (RealPages > Pages);\r | |
234 | \r | |
235 | Status = gBS->AllocatePages (AllocateAnyPages, MemoryType, RealPages, &Memory);\r | |
236 | if (EFI_ERROR (Status)) {\r | |
237 | return NULL;\r | |
238 | }\r | |
239 | AlignedMemory = ((UINTN) Memory + AlignmentMask) & ~AlignmentMask;\r | |
240 | UnalignedPages = EFI_SIZE_TO_PAGES (AlignedMemory - (UINTN) Memory);\r | |
241 | if (UnalignedPages > 0) {\r | |
242 | //\r | |
243 | // Free first unaligned page(s).\r | |
244 | //\r | |
245 | Status = gBS->FreePages (Memory, UnalignedPages);\r | |
246 | ASSERT_EFI_ERROR (Status);\r | |
247 | }\r | |
248 | Memory = (EFI_PHYSICAL_ADDRESS) (AlignedMemory + EFI_PAGES_TO_SIZE (Pages));\r | |
249 | UnalignedPages = RealPages - Pages - UnalignedPages;\r | |
250 | if (UnalignedPages > 0) {\r | |
251 | //\r | |
252 | // Free last unaligned page(s).\r | |
253 | //\r | |
254 | Status = gBS->FreePages (Memory, UnalignedPages);\r | |
255 | ASSERT_EFI_ERROR (Status);\r | |
256 | }\r | |
257 | } else {\r | |
258 | //\r | |
259 | // Do not over-allocate pages in this case.\r | |
260 | //\r | |
261 | Status = gBS->AllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);\r | |
262 | if (EFI_ERROR (Status)) {\r | |
263 | return NULL;\r | |
264 | }\r | |
265 | AlignedMemory = (UINTN) Memory;\r | |
266 | }\r | |
267 | \r | |
268 | Status = gVirtualUncachedPages->ConvertPages (gVirtualUncachedPages, AlignedMemory, Pages * EFI_PAGE_SIZE, PcdGet64 (PcdArmUncachedMemoryMask), &gAttributes);\r | |
269 | if (EFI_ERROR (Status)) {\r | |
270 | return NULL;\r | |
271 | }\r | |
272 | \r | |
273 | AlignedMemory = (EFI_PHYSICAL_ADDRESS)(UINTN)ConvertToUncachedAddress ((VOID *)(UINTN)AlignedMemory);\r | |
274 | \r | |
275 | return (VOID *)(UINTN)AlignedMemory;\r | |
276 | }\r | |
277 | \r | |
278 | \r | |
279 | VOID\r | |
280 | EFIAPI\r | |
281 | UncachedFreeAlignedPages (\r | |
282 | IN VOID *Buffer,\r | |
283 | IN UINTN Pages\r | |
284 | )\r | |
285 | {\r | |
286 | EFI_STATUS Status;\r | |
287 | EFI_PHYSICAL_ADDRESS Memory; \r | |
288 | \r | |
289 | ASSERT (Pages != 0);\r | |
290 | \r | |
291 | Memory = ConvertToPhysicalAddress (Buffer);\r | |
292 | \r | |
293 | Status = gVirtualUncachedPages->RevertPages (gVirtualUncachedPages, Memory, Pages * EFI_PAGE_SIZE, PcdGet64 (PcdArmUncachedMemoryMask), gAttributes);\r | |
294 | \r | |
295 | \r | |
d4f167a9 | 296 | Status = gBS->FreePages ((EFI_PHYSICAL_ADDRESS) (UINTN) Memory, Pages);\r |
965626c9 A |
297 | ASSERT_EFI_ERROR (Status);\r |
298 | }\r | |
299 | \r | |
300 | \r | |
301 | \r | |
302 | \r | |
303 | VOID *\r | |
304 | UncachedInternalAllocateAlignedPool (\r | |
305 | IN EFI_MEMORY_TYPE PoolType,\r | |
306 | IN UINTN AllocationSize,\r | |
307 | IN UINTN Alignment\r | |
308 | )\r | |
309 | {\r | |
310 | VOID *AlignedAddress;\r | |
311 | \r | |
312 | //\r | |
313 | // Alignment must be a power of two or zero.\r | |
314 | //\r | |
315 | ASSERT ((Alignment & (Alignment - 1)) == 0);\r | |
316 | \r | |
317 | if (Alignment < EFI_PAGE_SIZE) {\r | |
318 | Alignment = EFI_PAGE_SIZE;\r | |
319 | }\r | |
320 | \r | |
321 | AlignedAddress = UncachedInternalAllocateAlignedPages (PoolType, EFI_SIZE_TO_PAGES (AllocationSize), Alignment);\r | |
322 | if (AlignedAddress == NULL) {\r | |
323 | return NULL;\r | |
324 | }\r | |
325 | \r | |
326 | AddPagesToList ((VOID *)(UINTN)ConvertToPhysicalAddress (AlignedAddress), (VOID *)(UINTN)AlignedAddress, EFI_SIZE_TO_PAGES (AllocationSize));\r | |
327 | \r | |
328 | return (VOID *) AlignedAddress;\r | |
329 | }\r | |
330 | \r | |
331 | VOID *\r | |
332 | EFIAPI\r | |
333 | UncachedAllocateAlignedPool (\r | |
334 | IN UINTN AllocationSize,\r | |
335 | IN UINTN Alignment\r | |
336 | )\r | |
337 | {\r | |
338 | return UncachedInternalAllocateAlignedPool (EfiBootServicesData, AllocationSize, Alignment);\r | |
339 | }\r | |
340 | \r | |
341 | VOID *\r | |
342 | EFIAPI\r | |
343 | UncachedAllocateAlignedRuntimePool (\r | |
344 | IN UINTN AllocationSize,\r | |
345 | IN UINTN Alignment\r | |
346 | )\r | |
347 | {\r | |
348 | return UncachedInternalAllocateAlignedPool (EfiRuntimeServicesData, AllocationSize, Alignment);\r | |
349 | }\r | |
350 | \r | |
351 | VOID *\r | |
352 | EFIAPI\r | |
353 | UncachedAllocateAlignedReservedPool (\r | |
354 | IN UINTN AllocationSize,\r | |
355 | IN UINTN Alignment\r | |
356 | )\r | |
357 | {\r | |
358 | return UncachedInternalAllocateAlignedPool (EfiReservedMemoryType, AllocationSize, Alignment);\r | |
359 | }\r | |
360 | \r | |
361 | VOID *\r | |
362 | UncachedInternalAllocateAlignedZeroPool (\r | |
363 | IN EFI_MEMORY_TYPE PoolType,\r | |
364 | IN UINTN AllocationSize,\r | |
365 | IN UINTN Alignment\r | |
366 | )\r | |
367 | {\r | |
368 | VOID *Memory;\r | |
369 | Memory = UncachedInternalAllocateAlignedPool (PoolType, AllocationSize, Alignment);\r | |
370 | if (Memory != NULL) {\r | |
371 | Memory = ZeroMem (Memory, AllocationSize);\r | |
372 | }\r | |
373 | return Memory;\r | |
374 | }\r | |
375 | \r | |
376 | VOID *\r | |
377 | EFIAPI\r | |
378 | UncachedAllocateAlignedZeroPool (\r | |
379 | IN UINTN AllocationSize,\r | |
380 | IN UINTN Alignment\r | |
381 | )\r | |
382 | {\r | |
383 | return UncachedInternalAllocateAlignedZeroPool (EfiBootServicesData, AllocationSize, Alignment);\r | |
384 | }\r | |
385 | \r | |
386 | VOID *\r | |
387 | EFIAPI\r | |
388 | UncachedAllocateAlignedRuntimeZeroPool (\r | |
389 | IN UINTN AllocationSize,\r | |
390 | IN UINTN Alignment\r | |
391 | )\r | |
392 | {\r | |
393 | return UncachedInternalAllocateAlignedZeroPool (EfiRuntimeServicesData, AllocationSize, Alignment);\r | |
394 | }\r | |
395 | \r | |
396 | VOID *\r | |
397 | EFIAPI\r | |
398 | UncachedAllocateAlignedReservedZeroPool (\r | |
399 | IN UINTN AllocationSize,\r | |
400 | IN UINTN Alignment\r | |
401 | )\r | |
402 | {\r | |
403 | return UncachedInternalAllocateAlignedZeroPool (EfiReservedMemoryType, AllocationSize, Alignment);\r | |
404 | }\r | |
405 | \r | |
406 | VOID *\r | |
407 | UncachedInternalAllocateAlignedCopyPool (\r | |
408 | IN EFI_MEMORY_TYPE PoolType,\r | |
409 | IN UINTN AllocationSize,\r | |
410 | IN CONST VOID *Buffer,\r | |
411 | IN UINTN Alignment\r | |
412 | )\r | |
413 | {\r | |
414 | VOID *Memory;\r | |
415 | \r | |
416 | ASSERT (Buffer != NULL);\r | |
417 | ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));\r | |
418 | \r | |
419 | Memory = UncachedInternalAllocateAlignedPool (PoolType, AllocationSize, Alignment);\r | |
420 | if (Memory != NULL) {\r | |
421 | Memory = CopyMem (Memory, Buffer, AllocationSize);\r | |
422 | }\r | |
423 | return Memory;\r | |
424 | }\r | |
425 | \r | |
426 | VOID *\r | |
427 | EFIAPI\r | |
428 | UncachedAllocateAlignedCopyPool (\r | |
429 | IN UINTN AllocationSize,\r | |
430 | IN CONST VOID *Buffer,\r | |
431 | IN UINTN Alignment\r | |
432 | )\r | |
433 | {\r | |
434 | return UncachedInternalAllocateAlignedCopyPool (EfiBootServicesData, AllocationSize, Buffer, Alignment);\r | |
435 | }\r | |
436 | \r | |
437 | VOID *\r | |
438 | EFIAPI\r | |
439 | UncachedAllocateAlignedRuntimeCopyPool (\r | |
440 | IN UINTN AllocationSize,\r | |
441 | IN CONST VOID *Buffer,\r | |
442 | IN UINTN Alignment\r | |
443 | )\r | |
444 | {\r | |
445 | return UncachedInternalAllocateAlignedCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer, Alignment);\r | |
446 | }\r | |
447 | \r | |
448 | VOID *\r | |
449 | EFIAPI\r | |
450 | UncachedAllocateAlignedReservedCopyPool (\r | |
451 | IN UINTN AllocationSize,\r | |
452 | IN CONST VOID *Buffer,\r | |
453 | IN UINTN Alignment\r | |
454 | )\r | |
455 | {\r | |
456 | return UncachedInternalAllocateAlignedCopyPool (EfiReservedMemoryType, AllocationSize, Buffer, Alignment);\r | |
457 | }\r | |
458 | \r | |
459 | VOID\r | |
460 | EFIAPI\r | |
461 | UncachedFreeAlignedPool (\r | |
462 | IN VOID *Buffer\r | |
463 | )\r | |
464 | {\r | |
465 | VOID *Allocation;\r | |
466 | UINTN Pages;\r | |
467 | \r | |
468 | RemovePagesFromList (Buffer, &Allocation, &Pages);\r | |
469 | \r | |
470 | UncachedFreePages (Allocation, Pages);\r | |
471 | }\r | |
472 | \r | |
473 | VOID *\r | |
474 | UncachedInternalAllocatePool (\r | |
475 | IN EFI_MEMORY_TYPE MemoryType, \r | |
476 | IN UINTN AllocationSize\r | |
477 | )\r | |
478 | {\r | |
479 | UINTN CacheLineLength = ArmDataCacheLineLength ();\r | |
480 | return UncachedInternalAllocateAlignedPool (MemoryType, AllocationSize, CacheLineLength);\r | |
481 | }\r | |
482 | \r | |
483 | VOID *\r | |
484 | EFIAPI\r | |
485 | UncachedAllocatePool (\r | |
486 | IN UINTN AllocationSize\r | |
487 | )\r | |
488 | {\r | |
489 | return UncachedInternalAllocatePool (EfiBootServicesData, AllocationSize);\r | |
490 | }\r | |
491 | \r | |
492 | VOID *\r | |
493 | EFIAPI\r | |
494 | UncachedAllocateRuntimePool (\r | |
495 | IN UINTN AllocationSize\r | |
496 | )\r | |
497 | {\r | |
498 | return UncachedInternalAllocatePool (EfiRuntimeServicesData, AllocationSize);\r | |
499 | }\r | |
500 | \r | |
501 | VOID *\r | |
502 | EFIAPI\r | |
503 | UncachedAllocateReservedPool (\r | |
504 | IN UINTN AllocationSize\r | |
505 | )\r | |
506 | {\r | |
507 | return UncachedInternalAllocatePool (EfiReservedMemoryType, AllocationSize);\r | |
508 | }\r | |
509 | \r | |
510 | VOID *\r | |
511 | UncachedInternalAllocateZeroPool (\r | |
512 | IN EFI_MEMORY_TYPE PoolType, \r | |
513 | IN UINTN AllocationSize\r | |
514 | ) \r | |
515 | {\r | |
516 | VOID *Memory;\r | |
517 | \r | |
518 | Memory = UncachedInternalAllocatePool (PoolType, AllocationSize);\r | |
519 | if (Memory != NULL) {\r | |
520 | Memory = ZeroMem (Memory, AllocationSize);\r | |
521 | }\r | |
522 | return Memory;\r | |
523 | }\r | |
524 | \r | |
525 | VOID *\r | |
526 | EFIAPI\r | |
527 | UncachedAllocateZeroPool (\r | |
528 | IN UINTN AllocationSize\r | |
529 | )\r | |
530 | {\r | |
531 | return UncachedInternalAllocateZeroPool (EfiBootServicesData, AllocationSize);\r | |
532 | }\r | |
533 | \r | |
534 | VOID *\r | |
535 | EFIAPI\r | |
536 | UncachedAllocateRuntimeZeroPool (\r | |
537 | IN UINTN AllocationSize\r | |
538 | )\r | |
539 | {\r | |
540 | return UncachedInternalAllocateZeroPool (EfiRuntimeServicesData, AllocationSize);\r | |
541 | }\r | |
542 | \r | |
543 | VOID *\r | |
544 | EFIAPI\r | |
545 | UncachedAllocateReservedZeroPool (\r | |
546 | IN UINTN AllocationSize\r | |
547 | )\r | |
548 | {\r | |
549 | return UncachedInternalAllocateZeroPool (EfiReservedMemoryType, AllocationSize);\r | |
550 | }\r | |
551 | \r | |
552 | VOID *\r | |
553 | UncachedInternalAllocateCopyPool (\r | |
554 | IN EFI_MEMORY_TYPE PoolType, \r | |
555 | IN UINTN AllocationSize,\r | |
556 | IN CONST VOID *Buffer\r | |
557 | ) \r | |
558 | {\r | |
559 | VOID *Memory;\r | |
560 | \r | |
561 | ASSERT (Buffer != NULL);\r | |
562 | ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));\r | |
563 | \r | |
564 | Memory = UncachedInternalAllocatePool (PoolType, AllocationSize);\r | |
565 | if (Memory != NULL) {\r | |
566 | Memory = CopyMem (Memory, Buffer, AllocationSize);\r | |
567 | }\r | |
568 | return Memory;\r | |
569 | } \r | |
570 | \r | |
571 | VOID *\r | |
572 | EFIAPI\r | |
573 | UncachedAllocateCopyPool (\r | |
574 | IN UINTN AllocationSize,\r | |
575 | IN CONST VOID *Buffer\r | |
576 | )\r | |
577 | {\r | |
578 | return UncachedInternalAllocateCopyPool (EfiBootServicesData, AllocationSize, Buffer);\r | |
579 | }\r | |
580 | \r | |
581 | VOID *\r | |
582 | EFIAPI\r | |
583 | UncachedAllocateRuntimeCopyPool (\r | |
584 | IN UINTN AllocationSize,\r | |
585 | IN CONST VOID *Buffer\r | |
586 | )\r | |
587 | {\r | |
588 | return UncachedInternalAllocateCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer);\r | |
589 | }\r | |
590 | \r | |
591 | VOID *\r | |
592 | EFIAPI\r | |
593 | UncachedAllocateReservedCopyPool (\r | |
594 | IN UINTN AllocationSize,\r | |
595 | IN CONST VOID *Buffer\r | |
596 | )\r | |
597 | {\r | |
598 | return UncachedInternalAllocateCopyPool (EfiReservedMemoryType, AllocationSize, Buffer);\r | |
599 | }\r | |
600 | \r | |
601 | VOID\r | |
602 | EFIAPI\r | |
603 | UncachedFreePool (\r | |
604 | IN VOID *Buffer\r | |
605 | )\r | |
606 | {\r | |
607 | UncachedFreeAlignedPool (Buffer);\r | |
608 | }\r | |
609 | \r | |
610 | VOID\r | |
611 | EFIAPI\r | |
612 | UncachedSafeFreePool (\r | |
613 | IN VOID *Buffer\r | |
614 | )\r | |
615 | {\r | |
616 | if (Buffer != NULL) {\r | |
617 | UncachedFreePool (Buffer);\r | |
618 | Buffer = NULL;\r | |
619 | }\r | |
620 | }\r | |
621 | \r | |
622 | /**\r | |
623 | The constructor function caches the pointer of DXE Services Table.\r | |
624 | \r | |
625 | The constructor function caches the pointer of DXE Services Table.\r | |
626 | It will ASSERT() if that operation fails.\r | |
627 | It will ASSERT() if the pointer of DXE Services Table is NULL.\r | |
628 | It will always return EFI_SUCCESS.\r | |
629 | \r | |
630 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
631 | @param SystemTable A pointer to the EFI System Table.\r | |
632 | \r | |
633 | @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r | |
634 | \r | |
635 | **/\r | |
636 | EFI_STATUS\r | |
637 | EFIAPI\r | |
638 | DebugUncachedMemoryAllocationLibConstructor (\r | |
639 | IN EFI_HANDLE ImageHandle,\r | |
640 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
641 | )\r | |
642 | {\r | |
643 | EFI_STATUS Status;\r | |
644 | \r | |
f659880b | 645 | Status = gBS->LocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **)&gDebugUncachedCpu);\r |
965626c9 A |
646 | ASSERT_EFI_ERROR(Status);\r |
647 | \r | |
648 | Status = gBS->LocateProtocol (&gVirtualUncachedPagesProtocolGuid, NULL, (VOID **)&gVirtualUncachedPages);\r | |
649 | ASSERT_EFI_ERROR(Status);\r | |
650 | \r | |
651 | return Status;\r | |
652 | }\r | |
653 | \r | |
654 | \r | |
655 | \r |