]>
Commit | Line | Data |
---|---|---|
30436034 AB |
1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2014-2017, Linaro Limited. All rights reserved.\r | |
4 | \r | |
5 | This program and the accompanying materials are licensed and made available\r | |
6 | under the terms and conditions of the BSD License which accompanies this\r | |
7 | 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 <Base.h>\r | |
16 | #include <Library/ArmLib.h>\r | |
17 | #include <Library/BaseMemoryLib.h>\r | |
18 | #include <Library/DebugLib.h>\r | |
19 | #include <Library/MemoryAllocationLib.h>\r | |
20 | \r | |
21 | // Number of Virtual Memory Map Descriptors\r | |
22 | #define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS 5\r | |
23 | \r | |
51bb05c7 AB |
24 | //\r |
25 | // mach-virt's core peripherals such as the UART, the GIC and the RTC are\r | |
26 | // all mapped in the 'miscellaneous device I/O' region, which we just map\r | |
27 | // in its entirety rather than device by device. Note that it does not\r | |
28 | // cover any of the NOR flash banks or PCI resource windows.\r | |
29 | //\r | |
30 | #define MACH_VIRT_PERIPH_BASE 0x08000000\r | |
31 | #define MACH_VIRT_PERIPH_SIZE SIZE_128MB\r | |
32 | \r | |
30436034 AB |
33 | /**\r |
34 | Return the Virtual Memory Map of your platform\r | |
35 | \r | |
36 | This Virtual Memory Map is used by MemoryInitPei Module to initialize the MMU\r | |
37 | on your platform.\r | |
38 | \r | |
39 | @param[out] VirtualMemoryMap Array of ARM_MEMORY_REGION_DESCRIPTOR\r | |
40 | describing a Physical-to-Virtual Memory\r | |
41 | mapping. This array must be ended by a\r | |
42 | zero-filled entry. The allocated memory\r | |
43 | will not be freed.\r | |
44 | \r | |
45 | **/\r | |
46 | VOID\r | |
47 | ArmVirtGetMemoryMap (\r | |
48 | OUT ARM_MEMORY_REGION_DESCRIPTOR **VirtualMemoryMap\r | |
49 | )\r | |
50 | {\r | |
51 | ARM_MEMORY_REGION_DESCRIPTOR *VirtualMemoryTable;\r | |
30436034 AB |
52 | \r |
53 | ASSERT (VirtualMemoryMap != NULL);\r | |
54 | \r | |
55 | VirtualMemoryTable = AllocatePool (sizeof (ARM_MEMORY_REGION_DESCRIPTOR) *\r | |
56 | MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS);\r | |
57 | \r | |
58 | if (VirtualMemoryTable == NULL) {\r | |
59 | DEBUG ((DEBUG_ERROR, "%a: Error: Failed AllocatePool()\n", __FUNCTION__));\r | |
60 | return;\r | |
61 | }\r | |
62 | \r | |
63 | // System DRAM\r | |
64 | VirtualMemoryTable[0].PhysicalBase = PcdGet64 (PcdSystemMemoryBase);\r | |
65 | VirtualMemoryTable[0].VirtualBase = VirtualMemoryTable[0].PhysicalBase;\r | |
66 | VirtualMemoryTable[0].Length = PcdGet64 (PcdSystemMemorySize);\r | |
67 | VirtualMemoryTable[0].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK;\r | |
68 | \r | |
69 | DEBUG ((DEBUG_INFO, "%a: Dumping System DRAM Memory Map:\n"\r | |
70 | "\tPhysicalBase: 0x%lX\n"\r | |
71 | "\tVirtualBase: 0x%lX\n"\r | |
72 | "\tLength: 0x%lX\n",\r | |
73 | __FUNCTION__,\r | |
74 | VirtualMemoryTable[0].PhysicalBase,\r | |
75 | VirtualMemoryTable[0].VirtualBase,\r | |
76 | VirtualMemoryTable[0].Length));\r | |
77 | \r | |
51bb05c7 AB |
78 | // Memory mapped peripherals (UART, RTC, GIC, virtio-mmio, etc)\r |
79 | VirtualMemoryTable[1].PhysicalBase = MACH_VIRT_PERIPH_BASE;\r | |
80 | VirtualMemoryTable[1].VirtualBase = MACH_VIRT_PERIPH_BASE;\r | |
81 | VirtualMemoryTable[1].Length = MACH_VIRT_PERIPH_SIZE;\r | |
30436034 AB |
82 | VirtualMemoryTable[1].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;\r |
83 | \r | |
51bb05c7 AB |
84 | // Map the FV region as normal executable memory\r |
85 | VirtualMemoryTable[2].PhysicalBase = PcdGet64 (PcdFvBaseAddress);\r | |
364eed84 | 86 | VirtualMemoryTable[2].VirtualBase = VirtualMemoryTable[2].PhysicalBase;\r |
51bb05c7 | 87 | VirtualMemoryTable[2].Length = FixedPcdGet32 (PcdFvSize);\r |
364eed84 | 88 | VirtualMemoryTable[2].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK;\r |
30436034 AB |
89 | \r |
90 | // End of Table\r | |
364eed84 | 91 | ZeroMem (&VirtualMemoryTable[3], sizeof (ARM_MEMORY_REGION_DESCRIPTOR));\r |
30436034 AB |
92 | \r |
93 | *VirtualMemoryMap = VirtualMemoryTable;\r | |
94 | }\r |