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1 | /** @file\r |
2 | Debug Port Library implementation based on usb3 debug port.\r | |
3 | \r | |
364f63c0 | 4 | Copyright (c) 2014 - 2017, Intel Corporation. All rights reserved.<BR>\r |
2cb6eabe EL |
5 | This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php.\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <PiPei.h>\r | |
16 | #include <Library/PeiServicesLib.h>\r | |
364f63c0 | 17 | #include <Ppi/MemoryDiscovered.h>\r |
2cb6eabe EL |
18 | #include "DebugCommunicationLibUsb3Internal.h"\r |
19 | \r | |
20 | /**\r | |
21 | Allocate aligned memory for XHC's usage.\r | |
22 | \r | |
23 | @param BufferSize The size, in bytes, of the Buffer.\r | |
24 | \r | |
25 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
26 | \r | |
27 | **/\r | |
28 | VOID*\r | |
29 | AllocateAlignBuffer (\r | |
30 | IN UINTN BufferSize\r | |
31 | )\r | |
32 | {\r | |
33 | VOID *Buf;\r | |
34 | EFI_PHYSICAL_ADDRESS Address;\r | |
35 | EFI_STATUS Status;\r | |
364f63c0 SZ |
36 | VOID *MemoryDiscoveredPpi;\r |
37 | \r | |
38 | Buf = NULL;\r | |
39 | \r | |
40 | //\r | |
41 | // Make sure the allocated memory is physical memory.\r | |
42 | //\r | |
43 | Status = PeiServicesLocatePpi (\r | |
44 | &gEfiPeiMemoryDiscoveredPpiGuid,\r | |
45 | 0,\r | |
46 | NULL,\r | |
47 | (VOID **) &MemoryDiscoveredPpi\r | |
48 | );\r | |
49 | if (!EFI_ERROR (Status)) {\r | |
50 | Status = PeiServicesAllocatePages (EfiACPIMemoryNVS, EFI_SIZE_TO_PAGES (BufferSize), &Address);\r | |
51 | if (!EFI_ERROR (Status)) {\r | |
52 | Buf = (VOID *)(UINTN) Address;\r | |
53 | }\r | |
2cb6eabe EL |
54 | }\r |
55 | return Buf;\r | |
56 | }\r | |
57 | \r |